# SPDX-License-Identifier: GPL-2.0-only
-smiapp-objs += smiapp-core.o smiapp-regs.o \
- smiapp-quirk.o ccs-limits.o
+smiapp-objs += ccs-core.o ccs-reg-access.o \
+ ccs-quirk.o ccs-limits.o
obj-$(CONFIG_VIDEO_SMIAPP) += smiapp.o
ccflags-y += -I $(srctree)/drivers/media/i2c
--- /dev/null
+// SPDX-License-Identifier: GPL-2.0-only
+/*
+ * drivers/media/i2c/smiapp/ccs-core.c
+ *
+ * Generic driver for SMIA/SMIA++ compliant camera modules
+ *
+ * Copyright (C) 2010--2012 Nokia Corporation
+ * Contact: Sakari Ailus <sakari.ailus@iki.fi>
+ *
+ * Based on smiapp driver by Vimarsh Zutshi
+ * Based on jt8ev1.c by Vimarsh Zutshi
+ * Based on smia-sensor.c by Tuukka Toivonen <tuukkat76@gmail.com>
+ */
+
+#include <linux/clk.h>
+#include <linux/delay.h>
+#include <linux/device.h>
+#include <linux/gpio.h>
+#include <linux/gpio/consumer.h>
+#include <linux/module.h>
+#include <linux/pm_runtime.h>
+#include <linux/property.h>
+#include <linux/regulator/consumer.h>
+#include <linux/slab.h>
+#include <linux/smiapp.h>
+#include <linux/v4l2-mediabus.h>
+#include <media/v4l2-fwnode.h>
+#include <media/v4l2-device.h>
+
+#include "ccs.h"
+#include "ccs-limits.h"
+
+#define CCS_ALIGN_DIM(dim, flags) \
+ ((flags) & V4L2_SEL_FLAG_GE \
+ ? ALIGN((dim), 2) \
+ : (dim) & ~1)
+
+static struct ccs_limit_offset {
+ u16 lim;
+ u16 info;
+} ccs_limit_offsets[CCS_L_LAST + 1];
+
+/*
+ * ccs_module_idents - supported camera modules
+ */
+static const struct ccs_module_ident ccs_module_idents[] = {
+ CCS_IDENT_L(0x01, 0x022b, -1, "vs6555"),
+ CCS_IDENT_L(0x01, 0x022e, -1, "vw6558"),
+ CCS_IDENT_L(0x07, 0x7698, -1, "ovm7698"),
+ CCS_IDENT_L(0x0b, 0x4242, -1, "smiapp-003"),
+ CCS_IDENT_L(0x0c, 0x208a, -1, "tcm8330md"),
+ CCS_IDENT_LQ(0x0c, 0x2134, -1, "tcm8500md", &smiapp_tcm8500md_quirk),
+ CCS_IDENT_L(0x0c, 0x213e, -1, "et8en2"),
+ CCS_IDENT_L(0x0c, 0x2184, -1, "tcm8580md"),
+ CCS_IDENT_LQ(0x0c, 0x560f, -1, "jt8ew9", &smiapp_jt8ew9_quirk),
+ CCS_IDENT_LQ(0x10, 0x4141, -1, "jt8ev1", &smiapp_jt8ev1_quirk),
+ CCS_IDENT_LQ(0x10, 0x4241, -1, "imx125es", &smiapp_imx125es_quirk),
+};
+
+/*
+ *
+ * Dynamic Capability Identification
+ *
+ */
+
+static void ccs_assign_limit(void *ptr, unsigned int width, u32 val)
+{
+ switch (width) {
+ case sizeof(u8):
+ *(u8 *)ptr = val;
+ break;
+ case sizeof(u16):
+ *(u16 *)ptr = val;
+ break;
+ case sizeof(u32):
+ *(u32 *)ptr = val;
+ break;
+ }
+}
+
+static int ccs_limit_ptr(struct ccs_sensor *sensor, unsigned int limit,
+ unsigned int offset, void **__ptr)
+{
+ const struct ccs_limit *linfo;
+
+ if (WARN_ON(limit >= CCS_L_LAST))
+ return -EINVAL;
+
+ linfo = &ccs_limits[ccs_limit_offsets[limit].info];
+
+ if (WARN_ON(!sensor->ccs_limits) ||
+ WARN_ON(offset + ccs_reg_width(linfo->reg) >
+ ccs_limit_offsets[limit + 1].lim))
+ return -EINVAL;
+
+ *__ptr = sensor->ccs_limits + ccs_limit_offsets[limit].lim + offset;
+
+ return 0;
+}
+
+void ccs_replace_limit(struct ccs_sensor *sensor,
+ unsigned int limit, unsigned int offset, u32 val)
+{
+ struct i2c_client *client = v4l2_get_subdevdata(&sensor->src->sd);
+ const struct ccs_limit *linfo;
+ void *ptr;
+ int ret;
+
+ ret = ccs_limit_ptr(sensor, limit, offset, &ptr);
+ if (ret)
+ return;
+
+ linfo = &ccs_limits[ccs_limit_offsets[limit].info];
+
+ dev_dbg(&client->dev, "quirk: 0x%8.8x \"%s\" %u = %d, 0x%x\n",
+ linfo->reg, linfo->name, offset, val, val);
+
+ ccs_assign_limit(ptr, ccs_reg_width(linfo->reg), val);
+}
+
+static u32 ccs_get_limit(struct ccs_sensor *sensor,
+ unsigned int limit, unsigned int offset)
+{
+ void *ptr;
+ int ret;
+
+ ret = ccs_limit_ptr(sensor, limit, offset, &ptr);
+ if (ret)
+ return 0;
+
+ switch (ccs_reg_width(ccs_limits[ccs_limit_offsets[limit].info].reg)) {
+ case sizeof(u8):
+ return *(u8 *)ptr;
+ case sizeof(u16):
+ return *(u16 *)ptr;
+ case sizeof(u32):
+ return *(u32 *)ptr;
+ }
+
+ WARN_ON(1);
+
+ return 0;
+}
+
+#define CCS_LIM(sensor, limit) \
+ ccs_get_limit(sensor, CCS_L_##limit, 0)
+
+#define CCS_LIM_AT(sensor, limit, offset) \
+ ccs_get_limit(sensor, CCS_L_##limit, CCS_L_##limit##_OFFSET(offset))
+
+static int ccs_read_all_limits(struct ccs_sensor *sensor)
+{
+ struct i2c_client *client = v4l2_get_subdevdata(&sensor->src->sd);
+ void *ptr, *alloc, *end;
+ unsigned int i, l;
+ int ret;
+
+ kfree(sensor->ccs_limits);
+ sensor->ccs_limits = NULL;
+
+ alloc = kzalloc(ccs_limit_offsets[CCS_L_LAST].lim, GFP_KERNEL);
+ if (!alloc)
+ return -ENOMEM;
+
+ end = alloc + ccs_limit_offsets[CCS_L_LAST].lim;
+
+ for (i = 0, l = 0, ptr = alloc; ccs_limits[i].size; i++) {
+ u32 reg = ccs_limits[i].reg;
+ unsigned int width = ccs_reg_width(reg);
+ unsigned int j;
+
+ if (l == CCS_L_LAST) {
+ dev_err(&client->dev,
+ "internal error --- end of limit array\n");
+ ret = -EINVAL;
+ goto out_err;
+ }
+
+ for (j = 0; j < ccs_limits[i].size / width;
+ j++, reg += width, ptr += width) {
+ u32 val;
+
+ ret = ccs_read_addr(sensor, reg, &val);
+ if (ret)
+ goto out_err;
+
+ if (ptr + width > end) {
+ dev_err(&client->dev,
+ "internal error --- no room for regs\n");
+ ret = -EINVAL;
+ goto out_err;
+ }
+
+ ccs_assign_limit(ptr, width, val);
+
+ dev_dbg(&client->dev, "0x%8.8x \"%s\" = %u, 0x%x\n",
+ reg, ccs_limits[i].name, val, val);
+ }
+
+ if (ccs_limits[i].flags & CCS_L_FL_SAME_REG)
+ continue;
+
+ l++;
+ ptr = alloc + ccs_limit_offsets[l].lim;
+ }
+
+ if (l != CCS_L_LAST) {
+ dev_err(&client->dev,
+ "internal error --- insufficient limits\n");
+ ret = -EINVAL;
+ goto out_err;
+ }
+
+ sensor->ccs_limits = alloc;
+
+ if (CCS_LIM(sensor, SCALER_N_MIN) < 16)
+ ccs_replace_limit(sensor, CCS_L_SCALER_N_MIN, 0, 16);
+
+ return 0;
+
+out_err:
+ kfree(alloc);
+
+ return ret;
+}
+
+static int ccs_read_frame_fmt(struct ccs_sensor *sensor)
+{
+ struct i2c_client *client = v4l2_get_subdevdata(&sensor->src->sd);
+ u8 fmt_model_type, fmt_model_subtype, ncol_desc, nrow_desc;
+ unsigned int i;
+ int pixel_count = 0;
+ int line_count = 0;
+
+ fmt_model_type = CCS_LIM(sensor, FRAME_FORMAT_MODEL_TYPE);
+ fmt_model_subtype = CCS_LIM(sensor, FRAME_FORMAT_MODEL_SUBTYPE);
+
+ ncol_desc = (fmt_model_subtype
+ & CCS_FRAME_FORMAT_MODEL_SUBTYPE_COLUMNS_MASK)
+ >> CCS_FRAME_FORMAT_MODEL_SUBTYPE_COLUMNS_SHIFT;
+ nrow_desc = fmt_model_subtype
+ & CCS_FRAME_FORMAT_MODEL_SUBTYPE_ROWS_MASK;
+
+ dev_dbg(&client->dev, "format_model_type %s\n",
+ fmt_model_type == CCS_FRAME_FORMAT_MODEL_TYPE_2_BYTE
+ ? "2 byte" :
+ fmt_model_type == CCS_FRAME_FORMAT_MODEL_TYPE_4_BYTE
+ ? "4 byte" : "is simply bad");
+
+ dev_dbg(&client->dev, "%u column and %u row descriptors\n",
+ ncol_desc, nrow_desc);
+
+ for (i = 0; i < ncol_desc + nrow_desc; i++) {
+ u32 desc;
+ u32 pixelcode;
+ u32 pixels;
+ char *which;
+ char *what;
+ u32 reg;
+
+ if (fmt_model_type == CCS_FRAME_FORMAT_MODEL_TYPE_2_BYTE) {
+ desc = CCS_LIM_AT(sensor, FRAME_FORMAT_DESCRIPTOR, i);
+
+ pixelcode =
+ (desc
+ & CCS_FRAME_FORMAT_DESCRIPTOR_PCODE_MASK)
+ >> CCS_FRAME_FORMAT_DESCRIPTOR_PCODE_SHIFT;
+ pixels = desc & CCS_FRAME_FORMAT_DESCRIPTOR_PIXELS_MASK;
+ } else if (fmt_model_type
+ == CCS_FRAME_FORMAT_MODEL_TYPE_4_BYTE) {
+ desc = CCS_LIM_AT(sensor, FRAME_FORMAT_DESCRIPTOR_4, i);
+
+ pixelcode =
+ (desc
+ & CCS_FRAME_FORMAT_DESCRIPTOR_4_PCODE_MASK)
+ >> CCS_FRAME_FORMAT_DESCRIPTOR_4_PCODE_SHIFT;
+ pixels = desc &
+ CCS_FRAME_FORMAT_DESCRIPTOR_4_PIXELS_MASK;
+ } else {
+ dev_dbg(&client->dev,
+ "invalid frame format model type %d\n",
+ fmt_model_type);
+ return -EINVAL;
+ }
+
+ if (i < ncol_desc)
+ which = "columns";
+ else
+ which = "rows";
+
+ switch (pixelcode) {
+ case CCS_FRAME_FORMAT_DESCRIPTOR_PCODE_EMBEDDED:
+ what = "embedded";
+ break;
+ case CCS_FRAME_FORMAT_DESCRIPTOR_PCODE_DUMMY_PIXEL:
+ what = "dummy";
+ break;
+ case CCS_FRAME_FORMAT_DESCRIPTOR_PCODE_BLACK_PIXEL:
+ what = "black";
+ break;
+ case CCS_FRAME_FORMAT_DESCRIPTOR_PCODE_DARK_PIXEL:
+ what = "dark";
+ break;
+ case CCS_FRAME_FORMAT_DESCRIPTOR_PCODE_VISIBLE_PIXEL:
+ what = "visible";
+ break;
+ default:
+ what = "invalid";
+ break;
+ }
+
+ dev_dbg(&client->dev,
+ "0x%8.8x %s pixels: %d %s (pixelcode %u)\n", reg,
+ what, pixels, which, pixelcode);
+
+ if (i < ncol_desc) {
+ if (pixelcode ==
+ CCS_FRAME_FORMAT_DESCRIPTOR_PCODE_VISIBLE_PIXEL)
+ sensor->visible_pixel_start = pixel_count;
+ pixel_count += pixels;
+ continue;
+ }
+
+ /* Handle row descriptors */
+ switch (pixelcode) {
+ case CCS_FRAME_FORMAT_DESCRIPTOR_PCODE_EMBEDDED:
+ if (sensor->embedded_end)
+ break;
+ sensor->embedded_start = line_count;
+ sensor->embedded_end = line_count + pixels;
+ break;
+ case CCS_FRAME_FORMAT_DESCRIPTOR_PCODE_VISIBLE_PIXEL:
+ sensor->image_start = line_count;
+ break;
+ }
+ line_count += pixels;
+ }
+
+ if (sensor->embedded_end > sensor->image_start) {
+ dev_dbg(&client->dev,
+ "adjusting image start line to %u (was %u)\n",
+ sensor->embedded_end, sensor->image_start);
+ sensor->image_start = sensor->embedded_end;
+ }
+
+ dev_dbg(&client->dev, "embedded data from lines %d to %d\n",
+ sensor->embedded_start, sensor->embedded_end);
+ dev_dbg(&client->dev, "image data starts at line %d\n",
+ sensor->image_start);
+
+ return 0;
+}
+
+static int ccs_pll_configure(struct ccs_sensor *sensor)
+{
+ struct smiapp_pll *pll = &sensor->pll;
+ int rval;
+
+ rval = ccs_write(sensor, VT_PIX_CLK_DIV, pll->vt.pix_clk_div);
+ if (rval < 0)
+ return rval;
+
+ rval = ccs_write(sensor, VT_SYS_CLK_DIV, pll->vt.sys_clk_div);
+ if (rval < 0)
+ return rval;
+
+ rval = ccs_write(sensor, PRE_PLL_CLK_DIV, pll->pre_pll_clk_div);
+ if (rval < 0)
+ return rval;
+
+ rval = ccs_write(sensor, PLL_MULTIPLIER, pll->pll_multiplier);
+ if (rval < 0)
+ return rval;
+
+ /* Lane op clock ratio does not apply here. */
+ rval = ccs_write(sensor, REQUESTED_LINK_RATE,
+ DIV_ROUND_UP(pll->op.sys_clk_freq_hz,
+ 1000000 / 256 / 256));
+ if (rval < 0 || sensor->minfo.smiapp_profile == SMIAPP_PROFILE_0)
+ return rval;
+
+ rval = ccs_write(sensor, OP_PIX_CLK_DIV, pll->op.pix_clk_div);
+ if (rval < 0)
+ return rval;
+
+ return ccs_write(sensor, OP_SYS_CLK_DIV, pll->op.sys_clk_div);
+}
+
+static int ccs_pll_try(struct ccs_sensor *sensor, struct smiapp_pll *pll)
+{
+ struct i2c_client *client = v4l2_get_subdevdata(&sensor->src->sd);
+ struct smiapp_pll_limits lim = {
+ .min_pre_pll_clk_div = CCS_LIM(sensor, MIN_PRE_PLL_CLK_DIV),
+ .max_pre_pll_clk_div = CCS_LIM(sensor, MAX_PRE_PLL_CLK_DIV),
+ .min_pll_ip_freq_hz = CCS_LIM(sensor, MIN_PLL_IP_CLK_FREQ_MHZ),
+ .max_pll_ip_freq_hz = CCS_LIM(sensor, MAX_PLL_IP_CLK_FREQ_MHZ),
+ .min_pll_multiplier = CCS_LIM(sensor, MIN_PLL_MULTIPLIER),
+ .max_pll_multiplier = CCS_LIM(sensor, MAX_PLL_MULTIPLIER),
+ .min_pll_op_freq_hz = CCS_LIM(sensor, MIN_PLL_OP_CLK_FREQ_MHZ),
+ .max_pll_op_freq_hz = CCS_LIM(sensor, MAX_PLL_OP_CLK_FREQ_MHZ),
+
+ .op.min_sys_clk_div = CCS_LIM(sensor, MIN_OP_SYS_CLK_DIV),
+ .op.max_sys_clk_div = CCS_LIM(sensor, MAX_OP_SYS_CLK_DIV),
+ .op.min_pix_clk_div = CCS_LIM(sensor, MIN_OP_PIX_CLK_DIV),
+ .op.max_pix_clk_div = CCS_LIM(sensor, MAX_OP_PIX_CLK_DIV),
+ .op.min_sys_clk_freq_hz = CCS_LIM(sensor, MIN_OP_SYS_CLK_FREQ_MHZ),
+ .op.max_sys_clk_freq_hz = CCS_LIM(sensor, MAX_OP_SYS_CLK_FREQ_MHZ),
+ .op.min_pix_clk_freq_hz = CCS_LIM(sensor, MIN_OP_PIX_CLK_FREQ_MHZ),
+ .op.max_pix_clk_freq_hz = CCS_LIM(sensor, MAX_OP_PIX_CLK_FREQ_MHZ),
+
+ .vt.min_sys_clk_div = CCS_LIM(sensor, MIN_VT_SYS_CLK_DIV),
+ .vt.max_sys_clk_div = CCS_LIM(sensor, MAX_VT_SYS_CLK_DIV),
+ .vt.min_pix_clk_div = CCS_LIM(sensor, MIN_VT_PIX_CLK_DIV),
+ .vt.max_pix_clk_div = CCS_LIM(sensor, MAX_VT_PIX_CLK_DIV),
+ .vt.min_sys_clk_freq_hz = CCS_LIM(sensor, MIN_VT_SYS_CLK_FREQ_MHZ),
+ .vt.max_sys_clk_freq_hz = CCS_LIM(sensor, MAX_VT_SYS_CLK_FREQ_MHZ),
+ .vt.min_pix_clk_freq_hz = CCS_LIM(sensor, MIN_VT_PIX_CLK_FREQ_MHZ),
+ .vt.max_pix_clk_freq_hz = CCS_LIM(sensor, MAX_VT_PIX_CLK_FREQ_MHZ),
+
+ .min_line_length_pck_bin = CCS_LIM(sensor, MIN_LINE_LENGTH_PCK_BIN),
+ .min_line_length_pck = CCS_LIM(sensor, MIN_LINE_LENGTH_PCK),
+ };
+
+ return smiapp_pll_calculate(&client->dev, &lim, pll);
+}
+
+static int ccs_pll_update(struct ccs_sensor *sensor)
+{
+ struct smiapp_pll *pll = &sensor->pll;
+ int rval;
+
+ pll->binning_horizontal = sensor->binning_horizontal;
+ pll->binning_vertical = sensor->binning_vertical;
+ pll->link_freq =
+ sensor->link_freq->qmenu_int[sensor->link_freq->val];
+ pll->scale_m = sensor->scale_m;
+ pll->bits_per_pixel = sensor->csi_format->compressed;
+
+ rval = ccs_pll_try(sensor, pll);
+ if (rval < 0)
+ return rval;
+
+ __v4l2_ctrl_s_ctrl_int64(sensor->pixel_rate_parray,
+ pll->pixel_rate_pixel_array);
+ __v4l2_ctrl_s_ctrl_int64(sensor->pixel_rate_csi, pll->pixel_rate_csi);
+
+ return 0;
+}
+
+
+/*
+ *
+ * V4L2 Controls handling
+ *
+ */
+
+static void __ccs_update_exposure_limits(struct ccs_sensor *sensor)
+{
+ struct v4l2_ctrl *ctrl = sensor->exposure;
+ int max;
+
+ max = sensor->pixel_array->crop[CCS_PA_PAD_SRC].height
+ + sensor->vblank->val
+ - CCS_LIM(sensor, COARSE_INTEGRATION_TIME_MAX_MARGIN);
+
+ __v4l2_ctrl_modify_range(ctrl, ctrl->minimum, max, ctrl->step, max);
+}
+
+/*
+ * Order matters.
+ *
+ * 1. Bits-per-pixel, descending.
+ * 2. Bits-per-pixel compressed, descending.
+ * 3. Pixel order, same as in pixel_order_str. Formats for all four pixel
+ * orders must be defined.
+ */
+static const struct ccs_csi_data_format ccs_csi_data_formats[] = {
+ { MEDIA_BUS_FMT_SGRBG16_1X16, 16, 16, CCS_PIXEL_ORDER_GRBG, },
+ { MEDIA_BUS_FMT_SRGGB16_1X16, 16, 16, CCS_PIXEL_ORDER_RGGB, },
+ { MEDIA_BUS_FMT_SBGGR16_1X16, 16, 16, CCS_PIXEL_ORDER_BGGR, },
+ { MEDIA_BUS_FMT_SGBRG16_1X16, 16, 16, CCS_PIXEL_ORDER_GBRG, },
+ { MEDIA_BUS_FMT_SGRBG14_1X14, 14, 14, CCS_PIXEL_ORDER_GRBG, },
+ { MEDIA_BUS_FMT_SRGGB14_1X14, 14, 14, CCS_PIXEL_ORDER_RGGB, },
+ { MEDIA_BUS_FMT_SBGGR14_1X14, 14, 14, CCS_PIXEL_ORDER_BGGR, },
+ { MEDIA_BUS_FMT_SGBRG14_1X14, 14, 14, CCS_PIXEL_ORDER_GBRG, },
+ { MEDIA_BUS_FMT_SGRBG12_1X12, 12, 12, CCS_PIXEL_ORDER_GRBG, },
+ { MEDIA_BUS_FMT_SRGGB12_1X12, 12, 12, CCS_PIXEL_ORDER_RGGB, },
+ { MEDIA_BUS_FMT_SBGGR12_1X12, 12, 12, CCS_PIXEL_ORDER_BGGR, },
+ { MEDIA_BUS_FMT_SGBRG12_1X12, 12, 12, CCS_PIXEL_ORDER_GBRG, },
+ { MEDIA_BUS_FMT_SGRBG10_1X10, 10, 10, CCS_PIXEL_ORDER_GRBG, },
+ { MEDIA_BUS_FMT_SRGGB10_1X10, 10, 10, CCS_PIXEL_ORDER_RGGB, },
+ { MEDIA_BUS_FMT_SBGGR10_1X10, 10, 10, CCS_PIXEL_ORDER_BGGR, },
+ { MEDIA_BUS_FMT_SGBRG10_1X10, 10, 10, CCS_PIXEL_ORDER_GBRG, },
+ { MEDIA_BUS_FMT_SGRBG10_DPCM8_1X8, 10, 8, CCS_PIXEL_ORDER_GRBG, },
+ { MEDIA_BUS_FMT_SRGGB10_DPCM8_1X8, 10, 8, CCS_PIXEL_ORDER_RGGB, },
+ { MEDIA_BUS_FMT_SBGGR10_DPCM8_1X8, 10, 8, CCS_PIXEL_ORDER_BGGR, },
+ { MEDIA_BUS_FMT_SGBRG10_DPCM8_1X8, 10, 8, CCS_PIXEL_ORDER_GBRG, },
+ { MEDIA_BUS_FMT_SGRBG8_1X8, 8, 8, CCS_PIXEL_ORDER_GRBG, },
+ { MEDIA_BUS_FMT_SRGGB8_1X8, 8, 8, CCS_PIXEL_ORDER_RGGB, },
+ { MEDIA_BUS_FMT_SBGGR8_1X8, 8, 8, CCS_PIXEL_ORDER_BGGR, },
+ { MEDIA_BUS_FMT_SGBRG8_1X8, 8, 8, CCS_PIXEL_ORDER_GBRG, },
+};
+
+static const char *pixel_order_str[] = { "GRBG", "RGGB", "BGGR", "GBRG" };
+
+#define to_csi_format_idx(fmt) (((unsigned long)(fmt) \
+ - (unsigned long)ccs_csi_data_formats) \
+ / sizeof(*ccs_csi_data_formats))
+
+static u32 ccs_pixel_order(struct ccs_sensor *sensor)
+{
+ struct i2c_client *client = v4l2_get_subdevdata(&sensor->src->sd);
+ int flip = 0;
+
+ if (sensor->hflip) {
+ if (sensor->hflip->val)
+ flip |= CCS_IMAGE_ORIENTATION_HORIZONTAL_MIRROR;
+
+ if (sensor->vflip->val)
+ flip |= CCS_IMAGE_ORIENTATION_VERTICAL_FLIP;
+ }
+
+ flip ^= sensor->hvflip_inv_mask;
+
+ dev_dbg(&client->dev, "flip %d\n", flip);
+ return sensor->default_pixel_order ^ flip;
+}
+
+static void ccs_update_mbus_formats(struct ccs_sensor *sensor)
+{
+ struct i2c_client *client = v4l2_get_subdevdata(&sensor->src->sd);
+ unsigned int csi_format_idx =
+ to_csi_format_idx(sensor->csi_format) & ~3;
+ unsigned int internal_csi_format_idx =
+ to_csi_format_idx(sensor->internal_csi_format) & ~3;
+ unsigned int pixel_order = ccs_pixel_order(sensor);
+
+ sensor->mbus_frame_fmts =
+ sensor->default_mbus_frame_fmts << pixel_order;
+ sensor->csi_format =
+ &ccs_csi_data_formats[csi_format_idx + pixel_order];
+ sensor->internal_csi_format =
+ &ccs_csi_data_formats[internal_csi_format_idx
+ + pixel_order];
+
+ BUG_ON(max(internal_csi_format_idx, csi_format_idx) + pixel_order
+ >= ARRAY_SIZE(ccs_csi_data_formats));
+
+ dev_dbg(&client->dev, "new pixel order %s\n",
+ pixel_order_str[pixel_order]);
+}
+
+static const char * const ccs_test_patterns[] = {
+ "Disabled",
+ "Solid Colour",
+ "Eight Vertical Colour Bars",
+ "Colour Bars With Fade to Grey",
+ "Pseudorandom Sequence (PN9)",
+};
+
+static int ccs_set_ctrl(struct v4l2_ctrl *ctrl)
+{
+ struct ccs_sensor *sensor =
+ container_of(ctrl->handler, struct ccs_subdev, ctrl_handler)
+ ->sensor;
+ struct i2c_client *client = v4l2_get_subdevdata(&sensor->src->sd);
+ int pm_status;
+ u32 orient = 0;
+ unsigned int i;
+ int exposure;
+ int rval;
+
+ switch (ctrl->id) {
+ case V4L2_CID_HFLIP:
+ case V4L2_CID_VFLIP:
+ if (sensor->streaming)
+ return -EBUSY;
+
+ if (sensor->hflip->val)
+ orient |= CCS_IMAGE_ORIENTATION_HORIZONTAL_MIRROR;
+
+ if (sensor->vflip->val)
+ orient |= CCS_IMAGE_ORIENTATION_VERTICAL_FLIP;
+
+ orient ^= sensor->hvflip_inv_mask;
+
+ ccs_update_mbus_formats(sensor);
+
+ break;
+ case V4L2_CID_VBLANK:
+ exposure = sensor->exposure->val;
+
+ __ccs_update_exposure_limits(sensor);
+
+ if (exposure > sensor->exposure->maximum) {
+ sensor->exposure->val = sensor->exposure->maximum;
+ rval = ccs_set_ctrl(sensor->exposure);
+ if (rval < 0)
+ return rval;
+ }
+
+ break;
+ case V4L2_CID_LINK_FREQ:
+ if (sensor->streaming)
+ return -EBUSY;
+
+ rval = ccs_pll_update(sensor);
+ if (rval)
+ return rval;
+
+ return 0;
+ case V4L2_CID_TEST_PATTERN:
+ for (i = 0; i < ARRAY_SIZE(sensor->test_data); i++)
+ v4l2_ctrl_activate(
+ sensor->test_data[i],
+ ctrl->val ==
+ V4L2_SMIAPP_TEST_PATTERN_MODE_SOLID_COLOUR);
+
+ break;
+ }
+
+ pm_status = pm_runtime_get_if_active(&client->dev, true);
+ if (!pm_status)
+ return 0;
+
+ switch (ctrl->id) {
+ case V4L2_CID_ANALOGUE_GAIN:
+ rval = ccs_write(sensor, ANALOG_GAIN_CODE_GLOBAL, ctrl->val);
+
+ break;
+ case V4L2_CID_EXPOSURE:
+ rval = ccs_write(sensor, COARSE_INTEGRATION_TIME, ctrl->val);
+
+ break;
+ case V4L2_CID_HFLIP:
+ case V4L2_CID_VFLIP:
+ rval = ccs_write(sensor, IMAGE_ORIENTATION, orient);
+
+ break;
+ case V4L2_CID_VBLANK:
+ rval = ccs_write(sensor, FRAME_LENGTH_LINES,
+ sensor->pixel_array->crop[
+ CCS_PA_PAD_SRC].height
+ + ctrl->val);
+
+ break;
+ case V4L2_CID_HBLANK:
+ rval = ccs_write(sensor, LINE_LENGTH_PCK,
+ sensor->pixel_array->crop[
+ CCS_PA_PAD_SRC].width
+ + ctrl->val);
+
+ break;
+ case V4L2_CID_TEST_PATTERN:
+ rval = ccs_write(sensor, TEST_PATTERN_MODE, ctrl->val);
+
+ break;
+ case V4L2_CID_TEST_PATTERN_RED:
+ rval = ccs_write(sensor, TEST_DATA_RED, ctrl->val);
+
+ break;
+ case V4L2_CID_TEST_PATTERN_GREENR:
+ rval = ccs_write(sensor, TEST_DATA_GREENR, ctrl->val);
+
+ break;
+ case V4L2_CID_TEST_PATTERN_BLUE:
+ rval = ccs_write(sensor, TEST_DATA_BLUE, ctrl->val);
+
+ break;
+ case V4L2_CID_TEST_PATTERN_GREENB:
+ rval = ccs_write(sensor, TEST_DATA_GREENB, ctrl->val);
+
+ break;
+ case V4L2_CID_PIXEL_RATE:
+ /* For v4l2_ctrl_s_ctrl_int64() used internally. */
+ rval = 0;
+
+ break;
+ default:
+ rval = -EINVAL;
+ }
+
+ if (pm_status > 0) {
+ pm_runtime_mark_last_busy(&client->dev);
+ pm_runtime_put_autosuspend(&client->dev);
+ }
+
+ return rval;
+}
+
+static const struct v4l2_ctrl_ops ccs_ctrl_ops = {
+ .s_ctrl = ccs_set_ctrl,
+};
+
+static int ccs_init_controls(struct ccs_sensor *sensor)
+{
+ struct i2c_client *client = v4l2_get_subdevdata(&sensor->src->sd);
+ int rval;
+
+ rval = v4l2_ctrl_handler_init(&sensor->pixel_array->ctrl_handler, 12);
+ if (rval)
+ return rval;
+
+ sensor->pixel_array->ctrl_handler.lock = &sensor->mutex;
+
+ sensor->analog_gain = v4l2_ctrl_new_std(
+ &sensor->pixel_array->ctrl_handler, &ccs_ctrl_ops,
+ V4L2_CID_ANALOGUE_GAIN,
+ CCS_LIM(sensor, ANALOG_GAIN_CODE_MIN),
+ CCS_LIM(sensor, ANALOG_GAIN_CODE_MAX),
+ max(CCS_LIM(sensor, ANALOG_GAIN_CODE_STEP), 1U),
+ CCS_LIM(sensor, ANALOG_GAIN_CODE_MIN));
+
+ /* Exposure limits will be updated soon, use just something here. */
+ sensor->exposure = v4l2_ctrl_new_std(
+ &sensor->pixel_array->ctrl_handler, &ccs_ctrl_ops,
+ V4L2_CID_EXPOSURE, 0, 0, 1, 0);
+
+ sensor->hflip = v4l2_ctrl_new_std(
+ &sensor->pixel_array->ctrl_handler, &ccs_ctrl_ops,
+ V4L2_CID_HFLIP, 0, 1, 1, 0);
+ sensor->vflip = v4l2_ctrl_new_std(
+ &sensor->pixel_array->ctrl_handler, &ccs_ctrl_ops,
+ V4L2_CID_VFLIP, 0, 1, 1, 0);
+
+ sensor->vblank = v4l2_ctrl_new_std(
+ &sensor->pixel_array->ctrl_handler, &ccs_ctrl_ops,
+ V4L2_CID_VBLANK, 0, 1, 1, 0);
+
+ if (sensor->vblank)
+ sensor->vblank->flags |= V4L2_CTRL_FLAG_UPDATE;
+
+ sensor->hblank = v4l2_ctrl_new_std(
+ &sensor->pixel_array->ctrl_handler, &ccs_ctrl_ops,
+ V4L2_CID_HBLANK, 0, 1, 1, 0);
+
+ if (sensor->hblank)
+ sensor->hblank->flags |= V4L2_CTRL_FLAG_UPDATE;
+
+ sensor->pixel_rate_parray = v4l2_ctrl_new_std(
+ &sensor->pixel_array->ctrl_handler, &ccs_ctrl_ops,
+ V4L2_CID_PIXEL_RATE, 1, INT_MAX, 1, 1);
+
+ v4l2_ctrl_new_std_menu_items(&sensor->pixel_array->ctrl_handler,
+ &ccs_ctrl_ops, V4L2_CID_TEST_PATTERN,
+ ARRAY_SIZE(ccs_test_patterns) - 1,
+ 0, 0, ccs_test_patterns);
+
+ if (sensor->pixel_array->ctrl_handler.error) {
+ dev_err(&client->dev,
+ "pixel array controls initialization failed (%d)\n",
+ sensor->pixel_array->ctrl_handler.error);
+ return sensor->pixel_array->ctrl_handler.error;
+ }
+
+ sensor->pixel_array->sd.ctrl_handler =
+ &sensor->pixel_array->ctrl_handler;
+
+ v4l2_ctrl_cluster(2, &sensor->hflip);
+
+ rval = v4l2_ctrl_handler_init(&sensor->src->ctrl_handler, 0);
+ if (rval)
+ return rval;
+
+ sensor->src->ctrl_handler.lock = &sensor->mutex;
+
+ sensor->pixel_rate_csi = v4l2_ctrl_new_std(
+ &sensor->src->ctrl_handler, &ccs_ctrl_ops,
+ V4L2_CID_PIXEL_RATE, 1, INT_MAX, 1, 1);
+
+ if (sensor->src->ctrl_handler.error) {
+ dev_err(&client->dev,
+ "src controls initialization failed (%d)\n",
+ sensor->src->ctrl_handler.error);
+ return sensor->src->ctrl_handler.error;
+ }
+
+ sensor->src->sd.ctrl_handler = &sensor->src->ctrl_handler;
+
+ return 0;
+}
+
+/*
+ * For controls that require information on available media bus codes
+ * and linke frequencies.
+ */
+static int ccs_init_late_controls(struct ccs_sensor *sensor)
+{
+ unsigned long *valid_link_freqs = &sensor->valid_link_freqs[
+ sensor->csi_format->compressed - sensor->compressed_min_bpp];
+ unsigned int i;
+
+ for (i = 0; i < ARRAY_SIZE(sensor->test_data); i++) {
+ int max_value = (1 << sensor->csi_format->width) - 1;
+
+ sensor->test_data[i] = v4l2_ctrl_new_std(
+ &sensor->pixel_array->ctrl_handler,
+ &ccs_ctrl_ops, V4L2_CID_TEST_PATTERN_RED + i,
+ 0, max_value, 1, max_value);
+ }
+
+ sensor->link_freq = v4l2_ctrl_new_int_menu(
+ &sensor->src->ctrl_handler, &ccs_ctrl_ops,
+ V4L2_CID_LINK_FREQ, __fls(*valid_link_freqs),
+ __ffs(*valid_link_freqs), sensor->hwcfg->op_sys_clock);
+
+ return sensor->src->ctrl_handler.error;
+}
+
+static void ccs_free_controls(struct ccs_sensor *sensor)
+{
+ unsigned int i;
+
+ for (i = 0; i < sensor->ssds_used; i++)
+ v4l2_ctrl_handler_free(&sensor->ssds[i].ctrl_handler);
+}
+
+static int ccs_get_mbus_formats(struct ccs_sensor *sensor)
+{
+ struct i2c_client *client = v4l2_get_subdevdata(&sensor->src->sd);
+ struct smiapp_pll *pll = &sensor->pll;
+ u8 compressed_max_bpp = 0;
+ unsigned int type, n;
+ unsigned int i, pixel_order;
+ int rval;
+
+ type = CCS_LIM(sensor, DATA_FORMAT_MODEL_TYPE);
+
+ dev_dbg(&client->dev, "data_format_model_type %d\n", type);
+
+ rval = ccs_read(sensor, PIXEL_ORDER, &pixel_order);
+ if (rval)
+ return rval;
+
+ if (pixel_order >= ARRAY_SIZE(pixel_order_str)) {
+ dev_dbg(&client->dev, "bad pixel order %d\n", pixel_order);
+ return -EINVAL;
+ }
+
+ dev_dbg(&client->dev, "pixel order %d (%s)\n", pixel_order,
+ pixel_order_str[pixel_order]);
+
+ switch (type) {
+ case CCS_DATA_FORMAT_MODEL_TYPE_NORMAL:
+ n = SMIAPP_DATA_FORMAT_MODEL_TYPE_NORMAL_N;
+ break;
+ case CCS_DATA_FORMAT_MODEL_TYPE_EXTENDED:
+ n = CCS_LIM_DATA_FORMAT_DESCRIPTOR_MAX_N + 1;
+ break;
+ default:
+ return -EINVAL;
+ }
+
+ sensor->default_pixel_order = pixel_order;
+ sensor->mbus_frame_fmts = 0;
+
+ for (i = 0; i < n; i++) {
+ unsigned int fmt, j;
+
+ fmt = CCS_LIM_AT(sensor, DATA_FORMAT_DESCRIPTOR, i);
+
+ dev_dbg(&client->dev, "%u: bpp %u, compressed %u\n",
+ i, fmt >> 8, (u8)fmt);
+
+ for (j = 0; j < ARRAY_SIZE(ccs_csi_data_formats); j++) {
+ const struct ccs_csi_data_format *f =
+ &ccs_csi_data_formats[j];
+
+ if (f->pixel_order != CCS_PIXEL_ORDER_GRBG)
+ continue;
+
+ if (f->width != fmt >>
+ CCS_DATA_FORMAT_DESCRIPTOR_UNCOMPRESSED_SHIFT ||
+ f->compressed !=
+ (fmt & CCS_DATA_FORMAT_DESCRIPTOR_COMPRESSED_MASK))
+ continue;
+
+ dev_dbg(&client->dev, "jolly good! %d\n", j);
+
+ sensor->default_mbus_frame_fmts |= 1 << j;
+ }
+ }
+
+ /* Figure out which BPP values can be used with which formats. */
+ pll->binning_horizontal = 1;
+ pll->binning_vertical = 1;
+ pll->scale_m = sensor->scale_m;
+
+ for (i = 0; i < ARRAY_SIZE(ccs_csi_data_formats); i++) {
+ sensor->compressed_min_bpp =
+ min(ccs_csi_data_formats[i].compressed,
+ sensor->compressed_min_bpp);
+ compressed_max_bpp =
+ max(ccs_csi_data_formats[i].compressed,
+ compressed_max_bpp);
+ }
+
+ sensor->valid_link_freqs = devm_kcalloc(
+ &client->dev,
+ compressed_max_bpp - sensor->compressed_min_bpp + 1,
+ sizeof(*sensor->valid_link_freqs), GFP_KERNEL);
+ if (!sensor->valid_link_freqs)
+ return -ENOMEM;
+
+ for (i = 0; i < ARRAY_SIZE(ccs_csi_data_formats); i++) {
+ const struct ccs_csi_data_format *f =
+ &ccs_csi_data_formats[i];
+ unsigned long *valid_link_freqs =
+ &sensor->valid_link_freqs[
+ f->compressed - sensor->compressed_min_bpp];
+ unsigned int j;
+
+ if (!(sensor->default_mbus_frame_fmts & 1 << i))
+ continue;
+
+ pll->bits_per_pixel = f->compressed;
+
+ for (j = 0; sensor->hwcfg->op_sys_clock[j]; j++) {
+ pll->link_freq = sensor->hwcfg->op_sys_clock[j];
+
+ rval = ccs_pll_try(sensor, pll);
+ dev_dbg(&client->dev, "link freq %u Hz, bpp %u %s\n",
+ pll->link_freq, pll->bits_per_pixel,
+ rval ? "not ok" : "ok");
+ if (rval)
+ continue;
+
+ set_bit(j, valid_link_freqs);
+ }
+
+ if (!*valid_link_freqs) {
+ dev_info(&client->dev,
+ "no valid link frequencies for %u bpp\n",
+ f->compressed);
+ sensor->default_mbus_frame_fmts &= ~BIT(i);
+ continue;
+ }
+
+ if (!sensor->csi_format
+ || f->width > sensor->csi_format->width
+ || (f->width == sensor->csi_format->width
+ && f->compressed > sensor->csi_format->compressed)) {
+ sensor->csi_format = f;
+ sensor->internal_csi_format = f;
+ }
+ }
+
+ if (!sensor->csi_format) {
+ dev_err(&client->dev, "no supported mbus code found\n");
+ return -EINVAL;
+ }
+
+ ccs_update_mbus_formats(sensor);
+
+ return 0;
+}
+
+static void ccs_update_blanking(struct ccs_sensor *sensor)
+{
+ struct v4l2_ctrl *vblank = sensor->vblank;
+ struct v4l2_ctrl *hblank = sensor->hblank;
+ uint16_t min_fll, max_fll, min_llp, max_llp, min_lbp;
+ int min, max;
+
+ if (sensor->binning_vertical > 1 || sensor->binning_horizontal > 1) {
+ min_fll = CCS_LIM(sensor, MIN_FRAME_LENGTH_LINES_BIN);
+ max_fll = CCS_LIM(sensor, MAX_FRAME_LENGTH_LINES_BIN);
+ min_llp = CCS_LIM(sensor, MIN_LINE_LENGTH_PCK_BIN);
+ max_llp = CCS_LIM(sensor, MAX_LINE_LENGTH_PCK_BIN);
+ min_lbp = CCS_LIM(sensor, MIN_LINE_BLANKING_PCK_BIN);
+ } else {
+ min_fll = CCS_LIM(sensor, MIN_FRAME_LENGTH_LINES);
+ max_fll = CCS_LIM(sensor, MAX_FRAME_LENGTH_LINES);
+ min_llp = CCS_LIM(sensor, MIN_LINE_LENGTH_PCK);
+ max_llp = CCS_LIM(sensor, MAX_LINE_LENGTH_PCK);
+ min_lbp = CCS_LIM(sensor, MIN_LINE_BLANKING_PCK);
+ }
+
+ min = max_t(int,
+ CCS_LIM(sensor, MIN_FRAME_BLANKING_LINES),
+ min_fll -
+ sensor->pixel_array->crop[CCS_PA_PAD_SRC].height);
+ max = max_fll - sensor->pixel_array->crop[CCS_PA_PAD_SRC].height;
+
+ __v4l2_ctrl_modify_range(vblank, min, max, vblank->step, min);
+
+ min = max_t(int,
+ min_llp -
+ sensor->pixel_array->crop[CCS_PA_PAD_SRC].width,
+ min_lbp);
+ max = max_llp - sensor->pixel_array->crop[CCS_PA_PAD_SRC].width;
+
+ __v4l2_ctrl_modify_range(hblank, min, max, hblank->step, min);
+
+ __ccs_update_exposure_limits(sensor);
+}
+
+static int ccs_pll_blanking_update(struct ccs_sensor *sensor)
+{
+ struct i2c_client *client = v4l2_get_subdevdata(&sensor->src->sd);
+ int rval;
+
+ rval = ccs_pll_update(sensor);
+ if (rval < 0)
+ return rval;
+
+ /* Output from pixel array, including blanking */
+ ccs_update_blanking(sensor);
+
+ dev_dbg(&client->dev, "vblank\t\t%d\n", sensor->vblank->val);
+ dev_dbg(&client->dev, "hblank\t\t%d\n", sensor->hblank->val);
+
+ dev_dbg(&client->dev, "real timeperframe\t100/%d\n",
+ sensor->pll.pixel_rate_pixel_array /
+ ((sensor->pixel_array->crop[CCS_PA_PAD_SRC].width
+ + sensor->hblank->val) *
+ (sensor->pixel_array->crop[CCS_PA_PAD_SRC].height
+ + sensor->vblank->val) / 100));
+
+ return 0;
+}
+
+/*
+ *
+ * SMIA++ NVM handling
+ *
+ */
+
+static int ccs_read_nvm_page(struct ccs_sensor *sensor, u32 p, u8 *nvm,
+ u8 *status)
+{
+ unsigned int i;
+ int rval;
+ u32 s;
+
+ *status = 0;
+
+ rval = ccs_write(sensor, DATA_TRANSFER_IF_1_PAGE_SELECT, p);
+ if (rval)
+ return rval;
+
+ rval = ccs_write(sensor, DATA_TRANSFER_IF_1_CTRL,
+ CCS_DATA_TRANSFER_IF_1_CTRL_ENABLE);
+ if (rval)
+ return rval;
+
+ rval = ccs_read(sensor, DATA_TRANSFER_IF_1_STATUS, &s);
+ if (rval)
+ return rval;
+
+ if (s & CCS_DATA_TRANSFER_IF_1_STATUS_IMPROPER_IF_USAGE) {
+ *status = s;
+ return -ENODATA;
+ }
+
+ if (CCS_LIM(sensor, DATA_TRANSFER_IF_CAPABILITY) &
+ CCS_DATA_TRANSFER_IF_CAPABILITY_POLLING) {
+ for (i = 1000; i > 0; i--) {
+ if (s & CCS_DATA_TRANSFER_IF_1_STATUS_READ_IF_READY)
+ break;
+
+ rval = ccs_read(sensor, DATA_TRANSFER_IF_1_STATUS, &s);
+ if (rval)
+ return rval;
+ }
+
+ if (!i)
+ return -ETIMEDOUT;
+ }
+
+ for (i = 0; i <= CCS_LIM_DATA_TRANSFER_IF_1_DATA_MAX_P; i++) {
+ u32 v;
+
+ rval = ccs_read(sensor, DATA_TRANSFER_IF_1_DATA(i), &v);
+ if (rval)
+ return rval;
+
+ *nvm++ = v;
+ }
+
+ return 0;
+}
+
+static int ccs_read_nvm(struct ccs_sensor *sensor, unsigned char *nvm,
+ size_t nvm_size)
+{
+ u8 status = 0;
+ u32 p;
+ int rval = 0, rval2;
+
+ for (p = 0; p < nvm_size / (CCS_LIM_DATA_TRANSFER_IF_1_DATA_MAX_P + 1)
+ && !rval; p++) {
+ rval = ccs_read_nvm_page(sensor, p, nvm, &status);
+ nvm += CCS_LIM_DATA_TRANSFER_IF_1_DATA_MAX_P + 1;
+ }
+
+ if (rval == -ENODATA &&
+ status & CCS_DATA_TRANSFER_IF_1_STATUS_IMPROPER_IF_USAGE)
+ rval = 0;
+
+ rval2 = ccs_write(sensor, DATA_TRANSFER_IF_1_CTRL, 0);
+ if (rval < 0)
+ return rval;
+ else
+ return rval2 ?: p * (CCS_LIM_DATA_TRANSFER_IF_1_DATA_MAX_P + 1);
+}
+
+/*
+ *
+ * SMIA++ CCI address control
+ *
+ */
+static int ccs_change_cci_addr(struct ccs_sensor *sensor)
+{
+ struct i2c_client *client = v4l2_get_subdevdata(&sensor->src->sd);
+ int rval;
+ u32 val;
+
+ client->addr = sensor->hwcfg->i2c_addr_dfl;
+
+ rval = ccs_write(sensor, CCI_ADDRESS_CTRL,
+ sensor->hwcfg->i2c_addr_alt << 1);
+ if (rval)
+ return rval;
+
+ client->addr = sensor->hwcfg->i2c_addr_alt;
+
+ /* verify addr change went ok */
+ rval = ccs_read(sensor, CCI_ADDRESS_CTRL, &val);
+ if (rval)
+ return rval;
+
+ if (val != sensor->hwcfg->i2c_addr_alt << 1)
+ return -ENODEV;
+
+ return 0;
+}
+
+/*
+ *
+ * SMIA++ Mode Control
+ *
+ */
+static int ccs_setup_flash_strobe(struct ccs_sensor *sensor)
+{
+ struct ccs_flash_strobe_parms *strobe_setup;
+ unsigned int ext_freq = sensor->hwcfg->ext_clk;
+ u32 tmp;
+ u32 strobe_adjustment;
+ u32 strobe_width_high_rs;
+ int rval;
+
+ strobe_setup = sensor->hwcfg->strobe_setup;
+
+ /*
+ * How to calculate registers related to strobe length. Please
+ * do not change, or if you do at least know what you're
+ * doing. :-)
+ *
+ * Sakari Ailus <sakari.ailus@iki.fi> 2010-10-25
+ *
+ * flash_strobe_length [us] / 10^6 = (tFlash_strobe_width_ctrl
+ * / EXTCLK freq [Hz]) * flash_strobe_adjustment
+ *
+ * tFlash_strobe_width_ctrl E N, [1 - 0xffff]
+ * flash_strobe_adjustment E N, [1 - 0xff]
+ *
+ * The formula above is written as below to keep it on one
+ * line:
+ *
+ * l / 10^6 = w / e * a
+ *
+ * Let's mark w * a by x:
+ *
+ * x = w * a
+ *
+ * Thus, we get:
+ *
+ * x = l * e / 10^6
+ *
+ * The strobe width must be at least as long as requested,
+ * thus rounding upwards is needed.
+ *
+ * x = (l * e + 10^6 - 1) / 10^6
+ * -----------------------------
+ *
+ * Maximum possible accuracy is wanted at all times. Thus keep
+ * a as small as possible.
+ *
+ * Calculate a, assuming maximum w, with rounding upwards:
+ *
+ * a = (x + (2^16 - 1) - 1) / (2^16 - 1)
+ * -------------------------------------
+ *
+ * Thus, we also get w, with that a, with rounding upwards:
+ *
+ * w = (x + a - 1) / a
+ * -------------------
+ *
+ * To get limits:
+ *
+ * x E [1, (2^16 - 1) * (2^8 - 1)]
+ *
+ * Substituting maximum x to the original formula (with rounding),
+ * the maximum l is thus
+ *
+ * (2^16 - 1) * (2^8 - 1) * 10^6 = l * e + 10^6 - 1
+ *
+ * l = (10^6 * (2^16 - 1) * (2^8 - 1) - 10^6 + 1) / e
+ * --------------------------------------------------
+ *
+ * flash_strobe_length must be clamped between 1 and
+ * (10^6 * (2^16 - 1) * (2^8 - 1) - 10^6 + 1) / EXTCLK freq.
+ *
+ * Then,
+ *
+ * flash_strobe_adjustment = ((flash_strobe_length *
+ * EXTCLK freq + 10^6 - 1) / 10^6 + (2^16 - 1) - 1) / (2^16 - 1)
+ *
+ * tFlash_strobe_width_ctrl = ((flash_strobe_length *
+ * EXTCLK freq + 10^6 - 1) / 10^6 +
+ * flash_strobe_adjustment - 1) / flash_strobe_adjustment
+ */
+ tmp = div_u64(1000000ULL * ((1 << 16) - 1) * ((1 << 8) - 1) -
+ 1000000 + 1, ext_freq);
+ strobe_setup->strobe_width_high_us =
+ clamp_t(u32, strobe_setup->strobe_width_high_us, 1, tmp);
+
+ tmp = div_u64(((u64)strobe_setup->strobe_width_high_us * (u64)ext_freq +
+ 1000000 - 1), 1000000ULL);
+ strobe_adjustment = (tmp + (1 << 16) - 1 - 1) / ((1 << 16) - 1);
+ strobe_width_high_rs = (tmp + strobe_adjustment - 1) /
+ strobe_adjustment;
+
+ rval = ccs_write(sensor, FLASH_MODE_RS, strobe_setup->mode);
+ if (rval < 0)
+ goto out;
+
+ rval = ccs_write(sensor, FLASH_STROBE_ADJUSTMENT, strobe_adjustment);
+ if (rval < 0)
+ goto out;
+
+ rval = ccs_write(sensor, TFLASH_STROBE_WIDTH_HIGH_RS_CTRL,
+ strobe_width_high_rs);
+ if (rval < 0)
+ goto out;
+
+ rval = ccs_write(sensor, TFLASH_STROBE_DELAY_RS_CTRL,
+ strobe_setup->strobe_delay);
+ if (rval < 0)
+ goto out;
+
+ rval = ccs_write(sensor, FLASH_STROBE_START_POINT,
+ strobe_setup->stobe_start_point);
+ if (rval < 0)
+ goto out;
+
+ rval = ccs_write(sensor, FLASH_TRIGGER_RS, strobe_setup->trigger);
+
+out:
+ sensor->hwcfg->strobe_setup->trigger = 0;
+
+ return rval;
+}
+
+/* -----------------------------------------------------------------------------
+ * Power management
+ */
+
+static int ccs_power_on(struct device *dev)
+{
+ struct v4l2_subdev *subdev = dev_get_drvdata(dev);
+ struct ccs_subdev *ssd = to_ccs_subdev(subdev);
+ /*
+ * The sub-device related to the I2C device is always the
+ * source one, i.e. ssds[0].
+ */
+ struct ccs_sensor *sensor =
+ container_of(ssd, struct ccs_sensor, ssds[0]);
+ unsigned int sleep;
+ int rval;
+
+ rval = regulator_enable(sensor->vana);
+ if (rval) {
+ dev_err(dev, "failed to enable vana regulator\n");
+ return rval;
+ }
+ usleep_range(1000, 1000);
+
+ rval = clk_prepare_enable(sensor->ext_clk);
+ if (rval < 0) {
+ dev_dbg(dev, "failed to enable xclk\n");
+ goto out_xclk_fail;
+ }
+ usleep_range(1000, 1000);
+
+ gpiod_set_value(sensor->xshutdown, 1);
+
+ sleep = SMIAPP_RESET_DELAY(sensor->hwcfg->ext_clk);
+ usleep_range(sleep, sleep);
+
+ /*
+ * Failures to respond to the address change command have been noticed.
+ * Those failures seem to be caused by the sensor requiring a longer
+ * boot time than advertised. An additional 10ms delay seems to work
+ * around the issue, but the SMIA++ I2C write retry hack makes the delay
+ * unnecessary. The failures need to be investigated to find a proper
+ * fix, and a delay will likely need to be added here if the I2C write
+ * retry hack is reverted before the root cause of the boot time issue
+ * is found.
+ */
+
+ if (sensor->hwcfg->i2c_addr_alt) {
+ rval = ccs_change_cci_addr(sensor);
+ if (rval) {
+ dev_err(dev, "cci address change error\n");
+ goto out_cci_addr_fail;
+ }
+ }
+
+ rval = ccs_write(sensor, SOFTWARE_RESET, CCS_SOFTWARE_RESET_ON);
+ if (rval < 0) {
+ dev_err(dev, "software reset failed\n");
+ goto out_cci_addr_fail;
+ }
+
+ if (sensor->hwcfg->i2c_addr_alt) {
+ rval = ccs_change_cci_addr(sensor);
+ if (rval) {
+ dev_err(dev, "cci address change error\n");
+ goto out_cci_addr_fail;
+ }
+ }
+
+ rval = ccs_write(sensor, COMPRESSION_MODE,
+ CCS_COMPRESSION_MODE_DPCM_PCM_SIMPLE);
+ if (rval) {
+ dev_err(dev, "compression mode set failed\n");
+ goto out_cci_addr_fail;
+ }
+
+ rval = ccs_write(sensor, EXTCLK_FREQUENCY_MHZ,
+ sensor->hwcfg->ext_clk / (1000000 / (1 << 8)));
+ if (rval) {
+ dev_err(dev, "extclk frequency set failed\n");
+ goto out_cci_addr_fail;
+ }
+
+ rval = ccs_write(sensor, CSI_LANE_MODE, sensor->hwcfg->lanes - 1);
+ if (rval) {
+ dev_err(dev, "csi lane mode set failed\n");
+ goto out_cci_addr_fail;
+ }
+
+ rval = ccs_write(sensor, FAST_STANDBY_CTRL,
+ CCS_FAST_STANDBY_CTRL_FRAME_TRUNCATION);
+ if (rval) {
+ dev_err(dev, "fast standby set failed\n");
+ goto out_cci_addr_fail;
+ }
+
+ rval = ccs_write(sensor, CSI_SIGNALING_MODE,
+ sensor->hwcfg->csi_signalling_mode);
+ if (rval) {
+ dev_err(dev, "csi signalling mode set failed\n");
+ goto out_cci_addr_fail;
+ }
+
+ /* DPHY control done by sensor based on requested link rate */
+ rval = ccs_write(sensor, PHY_CTRL, CCS_PHY_CTRL_UI);
+ if (rval < 0)
+ goto out_cci_addr_fail;
+
+ rval = ccs_call_quirk(sensor, post_poweron);
+ if (rval) {
+ dev_err(dev, "post_poweron quirks failed\n");
+ goto out_cci_addr_fail;
+ }
+
+ return 0;
+
+out_cci_addr_fail:
+ gpiod_set_value(sensor->xshutdown, 0);
+ clk_disable_unprepare(sensor->ext_clk);
+
+out_xclk_fail:
+ regulator_disable(sensor->vana);
+
+ return rval;
+}
+
+static int ccs_power_off(struct device *dev)
+{
+ struct v4l2_subdev *subdev = dev_get_drvdata(dev);
+ struct ccs_subdev *ssd = to_ccs_subdev(subdev);
+ struct ccs_sensor *sensor =
+ container_of(ssd, struct ccs_sensor, ssds[0]);
+
+ /*
+ * Currently power/clock to lens are enable/disabled separately
+ * but they are essentially the same signals. So if the sensor is
+ * powered off while the lens is powered on the sensor does not
+ * really see a power off and next time the cci address change
+ * will fail. So do a soft reset explicitly here.
+ */
+ if (sensor->hwcfg->i2c_addr_alt)
+ ccs_write(sensor, SOFTWARE_RESET, CCS_SOFTWARE_RESET_ON);
+
+ gpiod_set_value(sensor->xshutdown, 0);
+ clk_disable_unprepare(sensor->ext_clk);
+ usleep_range(5000, 5000);
+ regulator_disable(sensor->vana);
+ sensor->streaming = false;
+
+ return 0;
+}
+
+/* -----------------------------------------------------------------------------
+ * Video stream management
+ */
+
+static int ccs_start_streaming(struct ccs_sensor *sensor)
+{
+ struct i2c_client *client = v4l2_get_subdevdata(&sensor->src->sd);
+ unsigned int binning_mode;
+ int rval;
+
+ mutex_lock(&sensor->mutex);
+
+ rval = ccs_write(sensor, CSI_DATA_FORMAT,
+ (sensor->csi_format->width << 8) |
+ sensor->csi_format->compressed);
+ if (rval)
+ goto out;
+
+ /* Binning configuration */
+ if (sensor->binning_horizontal == 1 &&
+ sensor->binning_vertical == 1) {
+ binning_mode = 0;
+ } else {
+ u8 binning_type =
+ (sensor->binning_horizontal << 4)
+ | sensor->binning_vertical;
+
+ rval = ccs_write(sensor, BINNING_TYPE, binning_type);
+ if (rval < 0)
+ goto out;
+
+ binning_mode = 1;
+ }
+ rval = ccs_write(sensor, BINNING_MODE, binning_mode);
+ if (rval < 0)
+ goto out;
+
+ /* Set up PLL */
+ rval = ccs_pll_configure(sensor);
+ if (rval)
+ goto out;
+
+ /* Analog crop start coordinates */
+ rval = ccs_write(sensor, X_ADDR_START,
+ sensor->pixel_array->crop[CCS_PA_PAD_SRC].left);
+ if (rval < 0)
+ goto out;
+
+ rval = ccs_write(sensor, Y_ADDR_START,
+ sensor->pixel_array->crop[CCS_PA_PAD_SRC].top);
+ if (rval < 0)
+ goto out;
+
+ /* Analog crop end coordinates */
+ rval = ccs_write(
+ sensor, X_ADDR_END,
+ sensor->pixel_array->crop[CCS_PA_PAD_SRC].left
+ + sensor->pixel_array->crop[CCS_PA_PAD_SRC].width - 1);
+ if (rval < 0)
+ goto out;
+
+ rval = ccs_write(
+ sensor, Y_ADDR_END,
+ sensor->pixel_array->crop[CCS_PA_PAD_SRC].top
+ + sensor->pixel_array->crop[CCS_PA_PAD_SRC].height - 1);
+ if (rval < 0)
+ goto out;
+
+ /*
+ * Output from pixel array, including blanking, is set using
+ * controls below. No need to set here.
+ */
+
+ /* Digital crop */
+ if (CCS_LIM(sensor, DIGITAL_CROP_CAPABILITY)
+ == CCS_DIGITAL_CROP_CAPABILITY_INPUT_CROP) {
+ rval = ccs_write(
+ sensor, DIGITAL_CROP_X_OFFSET,
+ sensor->scaler->crop[CCS_PAD_SINK].left);
+ if (rval < 0)
+ goto out;
+
+ rval = ccs_write(
+ sensor, DIGITAL_CROP_Y_OFFSET,
+ sensor->scaler->crop[CCS_PAD_SINK].top);
+ if (rval < 0)
+ goto out;
+
+ rval = ccs_write(
+ sensor, DIGITAL_CROP_IMAGE_WIDTH,
+ sensor->scaler->crop[CCS_PAD_SINK].width);
+ if (rval < 0)
+ goto out;
+
+ rval = ccs_write(
+ sensor, DIGITAL_CROP_IMAGE_HEIGHT,
+ sensor->scaler->crop[CCS_PAD_SINK].height);
+ if (rval < 0)
+ goto out;
+ }
+
+ /* Scaling */
+ if (CCS_LIM(sensor, SCALING_CAPABILITY)
+ != CCS_SCALING_CAPABILITY_NONE) {
+ rval = ccs_write(sensor, SCALING_MODE, sensor->scaling_mode);
+ if (rval < 0)
+ goto out;
+
+ rval = ccs_write(sensor, SCALE_M, sensor->scale_m);
+ if (rval < 0)
+ goto out;
+ }
+
+ /* Output size from sensor */
+ rval = ccs_write(sensor, X_OUTPUT_SIZE,
+ sensor->src->crop[CCS_PAD_SRC].width);
+ if (rval < 0)
+ goto out;
+ rval = ccs_write(sensor, Y_OUTPUT_SIZE,
+ sensor->src->crop[CCS_PAD_SRC].height);
+ if (rval < 0)
+ goto out;
+
+ if (CCS_LIM(sensor, FLASH_MODE_CAPABILITY) &
+ (CCS_FLASH_MODE_CAPABILITY_SINGLE_STROBE |
+ SMIAPP_FLASH_MODE_CAPABILITY_MULTIPLE_STROBE) &&
+ sensor->hwcfg->strobe_setup != NULL &&
+ sensor->hwcfg->strobe_setup->trigger != 0) {
+ rval = ccs_setup_flash_strobe(sensor);
+ if (rval)
+ goto out;
+ }
+
+ rval = ccs_call_quirk(sensor, pre_streamon);
+ if (rval) {
+ dev_err(&client->dev, "pre_streamon quirks failed\n");
+ goto out;
+ }
+
+ rval = ccs_write(sensor, MODE_SELECT, CCS_MODE_SELECT_STREAMING);
+
+out:
+ mutex_unlock(&sensor->mutex);
+
+ return rval;
+}
+
+static int ccs_stop_streaming(struct ccs_sensor *sensor)
+{
+ struct i2c_client *client = v4l2_get_subdevdata(&sensor->src->sd);
+ int rval;
+
+ mutex_lock(&sensor->mutex);
+ rval = ccs_write(sensor, MODE_SELECT, CCS_MODE_SELECT_SOFTWARE_STANDBY);
+ if (rval)
+ goto out;
+
+ rval = ccs_call_quirk(sensor, post_streamoff);
+ if (rval)
+ dev_err(&client->dev, "post_streamoff quirks failed\n");
+
+out:
+ mutex_unlock(&sensor->mutex);
+ return rval;
+}
+
+/* -----------------------------------------------------------------------------
+ * V4L2 subdev video operations
+ */
+
+static int ccs_pm_get_init(struct ccs_sensor *sensor)
+{
+ struct i2c_client *client = v4l2_get_subdevdata(&sensor->src->sd);
+ int rval;
+
+ rval = pm_runtime_get_sync(&client->dev);
+ if (rval < 0) {
+ if (rval != -EBUSY && rval != -EAGAIN)
+ pm_runtime_set_active(&client->dev);
+ pm_runtime_put_noidle(&client->dev);
+
+ return rval;
+ } else if (!rval) {
+ rval = v4l2_ctrl_handler_setup(&sensor->pixel_array->
+ ctrl_handler);
+ if (rval)
+ return rval;
+
+ return v4l2_ctrl_handler_setup(&sensor->src->ctrl_handler);
+ }
+
+ return 0;
+}
+
+static int ccs_set_stream(struct v4l2_subdev *subdev, int enable)
+{
+ struct ccs_sensor *sensor = to_ccs_sensor(subdev);
+ struct i2c_client *client = v4l2_get_subdevdata(&sensor->src->sd);
+ int rval;
+
+ if (sensor->streaming == enable)
+ return 0;
+
+ if (!enable) {
+ ccs_stop_streaming(sensor);
+ sensor->streaming = false;
+ pm_runtime_mark_last_busy(&client->dev);
+ pm_runtime_put_autosuspend(&client->dev);
+
+ return 0;
+ }
+
+ rval = ccs_pm_get_init(sensor);
+ if (rval)
+ return rval;
+
+ sensor->streaming = true;
+
+ rval = ccs_start_streaming(sensor);
+ if (rval < 0) {
+ sensor->streaming = false;
+ pm_runtime_mark_last_busy(&client->dev);
+ pm_runtime_put_autosuspend(&client->dev);
+ }
+
+ return rval;
+}
+
+static int ccs_enum_mbus_code(struct v4l2_subdev *subdev,
+ struct v4l2_subdev_pad_config *cfg,
+ struct v4l2_subdev_mbus_code_enum *code)
+{
+ struct i2c_client *client = v4l2_get_subdevdata(subdev);
+ struct ccs_sensor *sensor = to_ccs_sensor(subdev);
+ unsigned int i;
+ int idx = -1;
+ int rval = -EINVAL;
+
+ mutex_lock(&sensor->mutex);
+
+ dev_err(&client->dev, "subdev %s, pad %d, index %d\n",
+ subdev->name, code->pad, code->index);
+
+ if (subdev != &sensor->src->sd || code->pad != CCS_PAD_SRC) {
+ if (code->index)
+ goto out;
+
+ code->code = sensor->internal_csi_format->code;
+ rval = 0;
+ goto out;
+ }
+
+ for (i = 0; i < ARRAY_SIZE(ccs_csi_data_formats); i++) {
+ if (sensor->mbus_frame_fmts & (1 << i))
+ idx++;
+
+ if (idx == code->index) {
+ code->code = ccs_csi_data_formats[i].code;
+ dev_err(&client->dev, "found index %d, i %d, code %x\n",
+ code->index, i, code->code);
+ rval = 0;
+ break;
+ }
+ }
+
+out:
+ mutex_unlock(&sensor->mutex);
+
+ return rval;
+}
+
+static u32 __ccs_get_mbus_code(struct v4l2_subdev *subdev, unsigned int pad)
+{
+ struct ccs_sensor *sensor = to_ccs_sensor(subdev);
+
+ if (subdev == &sensor->src->sd && pad == CCS_PAD_SRC)
+ return sensor->csi_format->code;
+ else
+ return sensor->internal_csi_format->code;
+}
+
+static int __ccs_get_format(struct v4l2_subdev *subdev,
+ struct v4l2_subdev_pad_config *cfg,
+ struct v4l2_subdev_format *fmt)
+{
+ struct ccs_subdev *ssd = to_ccs_subdev(subdev);
+
+ if (fmt->which == V4L2_SUBDEV_FORMAT_TRY) {
+ fmt->format = *v4l2_subdev_get_try_format(subdev, cfg,
+ fmt->pad);
+ } else {
+ struct v4l2_rect *r;
+
+ if (fmt->pad == ssd->source_pad)
+ r = &ssd->crop[ssd->source_pad];
+ else
+ r = &ssd->sink_fmt;
+
+ fmt->format.code = __ccs_get_mbus_code(subdev, fmt->pad);
+ fmt->format.width = r->width;
+ fmt->format.height = r->height;
+ fmt->format.field = V4L2_FIELD_NONE;
+ }
+
+ return 0;
+}
+
+static int ccs_get_format(struct v4l2_subdev *subdev,
+ struct v4l2_subdev_pad_config *cfg,
+ struct v4l2_subdev_format *fmt)
+{
+ struct ccs_sensor *sensor = to_ccs_sensor(subdev);
+ int rval;
+
+ mutex_lock(&sensor->mutex);
+ rval = __ccs_get_format(subdev, cfg, fmt);
+ mutex_unlock(&sensor->mutex);
+
+ return rval;
+}
+
+static void ccs_get_crop_compose(struct v4l2_subdev *subdev,
+ struct v4l2_subdev_pad_config *cfg,
+ struct v4l2_rect **crops,
+ struct v4l2_rect **comps, int which)
+{
+ struct ccs_subdev *ssd = to_ccs_subdev(subdev);
+ unsigned int i;
+
+ if (which == V4L2_SUBDEV_FORMAT_ACTIVE) {
+ if (crops)
+ for (i = 0; i < subdev->entity.num_pads; i++)
+ crops[i] = &ssd->crop[i];
+ if (comps)
+ *comps = &ssd->compose;
+ } else {
+ if (crops) {
+ for (i = 0; i < subdev->entity.num_pads; i++) {
+ crops[i] = v4l2_subdev_get_try_crop(subdev, cfg, i);
+ BUG_ON(!crops[i]);
+ }
+ }
+ if (comps) {
+ *comps = v4l2_subdev_get_try_compose(subdev, cfg,
+ CCS_PAD_SINK);
+ BUG_ON(!*comps);
+ }
+ }
+}
+
+/* Changes require propagation only on sink pad. */
+static void ccs_propagate(struct v4l2_subdev *subdev,
+ struct v4l2_subdev_pad_config *cfg, int which,
+ int target)
+{
+ struct ccs_sensor *sensor = to_ccs_sensor(subdev);
+ struct ccs_subdev *ssd = to_ccs_subdev(subdev);
+ struct v4l2_rect *comp, *crops[CCS_PADS];
+
+ ccs_get_crop_compose(subdev, cfg, crops, &comp, which);
+
+ switch (target) {
+ case V4L2_SEL_TGT_CROP:
+ comp->width = crops[CCS_PAD_SINK]->width;
+ comp->height = crops[CCS_PAD_SINK]->height;
+ if (which == V4L2_SUBDEV_FORMAT_ACTIVE) {
+ if (ssd == sensor->scaler) {
+ sensor->scale_m =
+ CCS_LIM(sensor, SCALER_N_MIN);
+ sensor->scaling_mode =
+ CCS_SCALING_MODE_NO_SCALING;
+ } else if (ssd == sensor->binner) {
+ sensor->binning_horizontal = 1;
+ sensor->binning_vertical = 1;
+ }
+ }
+ fallthrough;
+ case V4L2_SEL_TGT_COMPOSE:
+ *crops[CCS_PAD_SRC] = *comp;
+ break;
+ default:
+ BUG();
+ }
+}
+
+static const struct ccs_csi_data_format
+*ccs_validate_csi_data_format(struct ccs_sensor *sensor, u32 code)
+{
+ unsigned int i;
+
+ for (i = 0; i < ARRAY_SIZE(ccs_csi_data_formats); i++) {
+ if (sensor->mbus_frame_fmts & (1 << i) &&
+ ccs_csi_data_formats[i].code == code)
+ return &ccs_csi_data_formats[i];
+ }
+
+ return sensor->csi_format;
+}
+
+static int ccs_set_format_source(struct v4l2_subdev *subdev,
+ struct v4l2_subdev_pad_config *cfg,
+ struct v4l2_subdev_format *fmt)
+{
+ struct ccs_sensor *sensor = to_ccs_sensor(subdev);
+ const struct ccs_csi_data_format *csi_format,
+ *old_csi_format = sensor->csi_format;
+ unsigned long *valid_link_freqs;
+ u32 code = fmt->format.code;
+ unsigned int i;
+ int rval;
+
+ rval = __ccs_get_format(subdev, cfg, fmt);
+ if (rval)
+ return rval;
+
+ /*
+ * Media bus code is changeable on src subdev's source pad. On
+ * other source pads we just get format here.
+ */
+ if (subdev != &sensor->src->sd)
+ return 0;
+
+ csi_format = ccs_validate_csi_data_format(sensor, code);
+
+ fmt->format.code = csi_format->code;
+
+ if (fmt->which != V4L2_SUBDEV_FORMAT_ACTIVE)
+ return 0;
+
+ sensor->csi_format = csi_format;
+
+ if (csi_format->width != old_csi_format->width)
+ for (i = 0; i < ARRAY_SIZE(sensor->test_data); i++)
+ __v4l2_ctrl_modify_range(
+ sensor->test_data[i], 0,
+ (1 << csi_format->width) - 1, 1, 0);
+
+ if (csi_format->compressed == old_csi_format->compressed)
+ return 0;
+
+ valid_link_freqs =
+ &sensor->valid_link_freqs[sensor->csi_format->compressed
+ - sensor->compressed_min_bpp];
+
+ __v4l2_ctrl_modify_range(
+ sensor->link_freq, 0,
+ __fls(*valid_link_freqs), ~*valid_link_freqs,
+ __ffs(*valid_link_freqs));
+
+ return ccs_pll_update(sensor);
+}
+
+static int ccs_set_format(struct v4l2_subdev *subdev,
+ struct v4l2_subdev_pad_config *cfg,
+ struct v4l2_subdev_format *fmt)
+{
+ struct ccs_sensor *sensor = to_ccs_sensor(subdev);
+ struct ccs_subdev *ssd = to_ccs_subdev(subdev);
+ struct v4l2_rect *crops[CCS_PADS];
+
+ mutex_lock(&sensor->mutex);
+
+ if (fmt->pad == ssd->source_pad) {
+ int rval;
+
+ rval = ccs_set_format_source(subdev, cfg, fmt);
+
+ mutex_unlock(&sensor->mutex);
+
+ return rval;
+ }
+
+ /* Sink pad. Width and height are changeable here. */
+ fmt->format.code = __ccs_get_mbus_code(subdev, fmt->pad);
+ fmt->format.width &= ~1;
+ fmt->format.height &= ~1;
+ fmt->format.field = V4L2_FIELD_NONE;
+
+ fmt->format.width =
+ clamp(fmt->format.width,
+ CCS_LIM(sensor, MIN_X_OUTPUT_SIZE),
+ CCS_LIM(sensor, MAX_X_OUTPUT_SIZE));
+ fmt->format.height =
+ clamp(fmt->format.height,
+ CCS_LIM(sensor, MIN_Y_OUTPUT_SIZE),
+ CCS_LIM(sensor, MAX_Y_OUTPUT_SIZE));
+
+ ccs_get_crop_compose(subdev, cfg, crops, NULL, fmt->which);
+
+ crops[ssd->sink_pad]->left = 0;
+ crops[ssd->sink_pad]->top = 0;
+ crops[ssd->sink_pad]->width = fmt->format.width;
+ crops[ssd->sink_pad]->height = fmt->format.height;
+ if (fmt->which == V4L2_SUBDEV_FORMAT_ACTIVE)
+ ssd->sink_fmt = *crops[ssd->sink_pad];
+ ccs_propagate(subdev, cfg, fmt->which, V4L2_SEL_TGT_CROP);
+
+ mutex_unlock(&sensor->mutex);
+
+ return 0;
+}
+
+/*
+ * Calculate goodness of scaled image size compared to expected image
+ * size and flags provided.
+ */
+#define SCALING_GOODNESS 100000
+#define SCALING_GOODNESS_EXTREME 100000000
+static int scaling_goodness(struct v4l2_subdev *subdev, int w, int ask_w,
+ int h, int ask_h, u32 flags)
+{
+ struct ccs_sensor *sensor = to_ccs_sensor(subdev);
+ struct i2c_client *client = v4l2_get_subdevdata(subdev);
+ int val = 0;
+
+ w &= ~1;
+ ask_w &= ~1;
+ h &= ~1;
+ ask_h &= ~1;
+
+ if (flags & V4L2_SEL_FLAG_GE) {
+ if (w < ask_w)
+ val -= SCALING_GOODNESS;
+ if (h < ask_h)
+ val -= SCALING_GOODNESS;
+ }
+
+ if (flags & V4L2_SEL_FLAG_LE) {
+ if (w > ask_w)
+ val -= SCALING_GOODNESS;
+ if (h > ask_h)
+ val -= SCALING_GOODNESS;
+ }
+
+ val -= abs(w - ask_w);
+ val -= abs(h - ask_h);
+
+ if (w < CCS_LIM(sensor, MIN_X_OUTPUT_SIZE))
+ val -= SCALING_GOODNESS_EXTREME;
+
+ dev_dbg(&client->dev, "w %d ask_w %d h %d ask_h %d goodness %d\n",
+ w, ask_w, h, ask_h, val);
+
+ return val;
+}
+
+static void ccs_set_compose_binner(struct v4l2_subdev *subdev,
+ struct v4l2_subdev_pad_config *cfg,
+ struct v4l2_subdev_selection *sel,
+ struct v4l2_rect **crops,
+ struct v4l2_rect *comp)
+{
+ struct ccs_sensor *sensor = to_ccs_sensor(subdev);
+ unsigned int i;
+ unsigned int binh = 1, binv = 1;
+ int best = scaling_goodness(
+ subdev,
+ crops[CCS_PAD_SINK]->width, sel->r.width,
+ crops[CCS_PAD_SINK]->height, sel->r.height, sel->flags);
+
+ for (i = 0; i < sensor->nbinning_subtypes; i++) {
+ int this = scaling_goodness(
+ subdev,
+ crops[CCS_PAD_SINK]->width
+ / sensor->binning_subtypes[i].horizontal,
+ sel->r.width,
+ crops[CCS_PAD_SINK]->height
+ / sensor->binning_subtypes[i].vertical,
+ sel->r.height, sel->flags);
+
+ if (this > best) {
+ binh = sensor->binning_subtypes[i].horizontal;
+ binv = sensor->binning_subtypes[i].vertical;
+ best = this;
+ }
+ }
+ if (sel->which == V4L2_SUBDEV_FORMAT_ACTIVE) {
+ sensor->binning_vertical = binv;
+ sensor->binning_horizontal = binh;
+ }
+
+ sel->r.width = (crops[CCS_PAD_SINK]->width / binh) & ~1;
+ sel->r.height = (crops[CCS_PAD_SINK]->height / binv) & ~1;
+}
+
+/*
+ * Calculate best scaling ratio and mode for given output resolution.
+ *
+ * Try all of these: horizontal ratio, vertical ratio and smallest
+ * size possible (horizontally).
+ *
+ * Also try whether horizontal scaler or full scaler gives a better
+ * result.
+ */
+static void ccs_set_compose_scaler(struct v4l2_subdev *subdev,
+ struct v4l2_subdev_pad_config *cfg,
+ struct v4l2_subdev_selection *sel,
+ struct v4l2_rect **crops,
+ struct v4l2_rect *comp)
+{
+ struct i2c_client *client = v4l2_get_subdevdata(subdev);
+ struct ccs_sensor *sensor = to_ccs_sensor(subdev);
+ u32 min, max, a, b, max_m;
+ u32 scale_m = CCS_LIM(sensor, SCALER_N_MIN);
+ int mode = CCS_SCALING_MODE_HORIZONTAL;
+ u32 try[4];
+ u32 ntry = 0;
+ unsigned int i;
+ int best = INT_MIN;
+
+ sel->r.width = min_t(unsigned int, sel->r.width,
+ crops[CCS_PAD_SINK]->width);
+ sel->r.height = min_t(unsigned int, sel->r.height,
+ crops[CCS_PAD_SINK]->height);
+
+ a = crops[CCS_PAD_SINK]->width
+ * CCS_LIM(sensor, SCALER_N_MIN) / sel->r.width;
+ b = crops[CCS_PAD_SINK]->height
+ * CCS_LIM(sensor, SCALER_N_MIN) / sel->r.height;
+ max_m = crops[CCS_PAD_SINK]->width
+ * CCS_LIM(sensor, SCALER_N_MIN)
+ / CCS_LIM(sensor, MIN_X_OUTPUT_SIZE);
+
+ a = clamp(a, CCS_LIM(sensor, SCALER_M_MIN),
+ CCS_LIM(sensor, SCALER_M_MAX));
+ b = clamp(b, CCS_LIM(sensor, SCALER_M_MIN),
+ CCS_LIM(sensor, SCALER_M_MAX));
+ max_m = clamp(max_m, CCS_LIM(sensor, SCALER_M_MIN),
+ CCS_LIM(sensor, SCALER_M_MAX));
+
+ dev_dbg(&client->dev, "scaling: a %d b %d max_m %d\n", a, b, max_m);
+
+ min = min(max_m, min(a, b));
+ max = min(max_m, max(a, b));
+
+ try[ntry] = min;
+ ntry++;
+ if (min != max) {
+ try[ntry] = max;
+ ntry++;
+ }
+ if (max != max_m) {
+ try[ntry] = min + 1;
+ ntry++;
+ if (min != max) {
+ try[ntry] = max + 1;
+ ntry++;
+ }
+ }
+
+ for (i = 0; i < ntry; i++) {
+ int this = scaling_goodness(
+ subdev,
+ crops[CCS_PAD_SINK]->width
+ / try[i] * CCS_LIM(sensor, SCALER_N_MIN),
+ sel->r.width,
+ crops[CCS_PAD_SINK]->height,
+ sel->r.height,
+ sel->flags);
+
+ dev_dbg(&client->dev, "trying factor %d (%d)\n", try[i], i);
+
+ if (this > best) {
+ scale_m = try[i];
+ mode = CCS_SCALING_MODE_HORIZONTAL;
+ best = this;
+ }
+
+ if (CCS_LIM(sensor, SCALING_CAPABILITY)
+ == CCS_SCALING_CAPABILITY_HORIZONTAL)
+ continue;
+
+ this = scaling_goodness(
+ subdev, crops[CCS_PAD_SINK]->width
+ / try[i]
+ * CCS_LIM(sensor, SCALER_N_MIN),
+ sel->r.width,
+ crops[CCS_PAD_SINK]->height
+ / try[i]
+ * CCS_LIM(sensor, SCALER_N_MIN),
+ sel->r.height,
+ sel->flags);
+
+ if (this > best) {
+ scale_m = try[i];
+ mode = SMIAPP_SCALING_MODE_BOTH;
+ best = this;
+ }
+ }
+
+ sel->r.width =
+ (crops[CCS_PAD_SINK]->width
+ / scale_m
+ * CCS_LIM(sensor, SCALER_N_MIN)) & ~1;
+ if (mode == SMIAPP_SCALING_MODE_BOTH)
+ sel->r.height =
+ (crops[CCS_PAD_SINK]->height
+ / scale_m
+ * CCS_LIM(sensor, SCALER_N_MIN))
+ & ~1;
+ else
+ sel->r.height = crops[CCS_PAD_SINK]->height;
+
+ if (sel->which == V4L2_SUBDEV_FORMAT_ACTIVE) {
+ sensor->scale_m = scale_m;
+ sensor->scaling_mode = mode;
+ }
+}
+/* We're only called on source pads. This function sets scaling. */
+static int ccs_set_compose(struct v4l2_subdev *subdev,
+ struct v4l2_subdev_pad_config *cfg,
+ struct v4l2_subdev_selection *sel)
+{
+ struct ccs_sensor *sensor = to_ccs_sensor(subdev);
+ struct ccs_subdev *ssd = to_ccs_subdev(subdev);
+ struct v4l2_rect *comp, *crops[CCS_PADS];
+
+ ccs_get_crop_compose(subdev, cfg, crops, &comp, sel->which);
+
+ sel->r.top = 0;
+ sel->r.left = 0;
+
+ if (ssd == sensor->binner)
+ ccs_set_compose_binner(subdev, cfg, sel, crops, comp);
+ else
+ ccs_set_compose_scaler(subdev, cfg, sel, crops, comp);
+
+ *comp = sel->r;
+ ccs_propagate(subdev, cfg, sel->which, V4L2_SEL_TGT_COMPOSE);
+
+ if (sel->which == V4L2_SUBDEV_FORMAT_ACTIVE)
+ return ccs_pll_blanking_update(sensor);
+
+ return 0;
+}
+
+static int __ccs_sel_supported(struct v4l2_subdev *subdev,
+ struct v4l2_subdev_selection *sel)
+{
+ struct ccs_sensor *sensor = to_ccs_sensor(subdev);
+ struct ccs_subdev *ssd = to_ccs_subdev(subdev);
+
+ /* We only implement crop in three places. */
+ switch (sel->target) {
+ case V4L2_SEL_TGT_CROP:
+ case V4L2_SEL_TGT_CROP_BOUNDS:
+ if (ssd == sensor->pixel_array && sel->pad == CCS_PA_PAD_SRC)
+ return 0;
+ if (ssd == sensor->src && sel->pad == CCS_PAD_SRC)
+ return 0;
+ if (ssd == sensor->scaler && sel->pad == CCS_PAD_SINK &&
+ CCS_LIM(sensor, DIGITAL_CROP_CAPABILITY)
+ == CCS_DIGITAL_CROP_CAPABILITY_INPUT_CROP)
+ return 0;
+ return -EINVAL;
+ case V4L2_SEL_TGT_NATIVE_SIZE:
+ if (ssd == sensor->pixel_array && sel->pad == CCS_PA_PAD_SRC)
+ return 0;
+ return -EINVAL;
+ case V4L2_SEL_TGT_COMPOSE:
+ case V4L2_SEL_TGT_COMPOSE_BOUNDS:
+ if (sel->pad == ssd->source_pad)
+ return -EINVAL;
+ if (ssd == sensor->binner)
+ return 0;
+ if (ssd == sensor->scaler && CCS_LIM(sensor, SCALING_CAPABILITY)
+ != CCS_SCALING_CAPABILITY_NONE)
+ return 0;
+ fallthrough;
+ default:
+ return -EINVAL;
+ }
+}
+
+static int ccs_set_crop(struct v4l2_subdev *subdev,
+ struct v4l2_subdev_pad_config *cfg,
+ struct v4l2_subdev_selection *sel)
+{
+ struct ccs_sensor *sensor = to_ccs_sensor(subdev);
+ struct ccs_subdev *ssd = to_ccs_subdev(subdev);
+ struct v4l2_rect *src_size, *crops[CCS_PADS];
+ struct v4l2_rect _r;
+
+ ccs_get_crop_compose(subdev, cfg, crops, NULL, sel->which);
+
+ if (sel->which == V4L2_SUBDEV_FORMAT_ACTIVE) {
+ if (sel->pad == ssd->sink_pad)
+ src_size = &ssd->sink_fmt;
+ else
+ src_size = &ssd->compose;
+ } else {
+ if (sel->pad == ssd->sink_pad) {
+ _r.left = 0;
+ _r.top = 0;
+ _r.width = v4l2_subdev_get_try_format(subdev, cfg, sel->pad)
+ ->width;
+ _r.height = v4l2_subdev_get_try_format(subdev, cfg, sel->pad)
+ ->height;
+ src_size = &_r;
+ } else {
+ src_size = v4l2_subdev_get_try_compose(
+ subdev, cfg, ssd->sink_pad);
+ }
+ }
+
+ if (ssd == sensor->src && sel->pad == CCS_PAD_SRC) {
+ sel->r.left = 0;
+ sel->r.top = 0;
+ }
+
+ sel->r.width = min(sel->r.width, src_size->width);
+ sel->r.height = min(sel->r.height, src_size->height);
+
+ sel->r.left = min_t(int, sel->r.left, src_size->width - sel->r.width);
+ sel->r.top = min_t(int, sel->r.top, src_size->height - sel->r.height);
+
+ *crops[sel->pad] = sel->r;
+
+ if (ssd != sensor->pixel_array && sel->pad == CCS_PAD_SINK)
+ ccs_propagate(subdev, cfg, sel->which, V4L2_SEL_TGT_CROP);
+
+ return 0;
+}
+
+static void ccs_get_native_size(struct ccs_subdev *ssd, struct v4l2_rect *r)
+{
+ r->top = 0;
+ r->left = 0;
+ r->width = CCS_LIM(ssd->sensor, X_ADDR_MAX) + 1;
+ r->height = CCS_LIM(ssd->sensor, Y_ADDR_MAX) + 1;
+}
+
+static int __ccs_get_selection(struct v4l2_subdev *subdev,
+ struct v4l2_subdev_pad_config *cfg,
+ struct v4l2_subdev_selection *sel)
+{
+ struct ccs_sensor *sensor = to_ccs_sensor(subdev);
+ struct ccs_subdev *ssd = to_ccs_subdev(subdev);
+ struct v4l2_rect *comp, *crops[CCS_PADS];
+ struct v4l2_rect sink_fmt;
+ int ret;
+
+ ret = __ccs_sel_supported(subdev, sel);
+ if (ret)
+ return ret;
+
+ ccs_get_crop_compose(subdev, cfg, crops, &comp, sel->which);
+
+ if (sel->which == V4L2_SUBDEV_FORMAT_ACTIVE) {
+ sink_fmt = ssd->sink_fmt;
+ } else {
+ struct v4l2_mbus_framefmt *fmt =
+ v4l2_subdev_get_try_format(subdev, cfg, ssd->sink_pad);
+
+ sink_fmt.left = 0;
+ sink_fmt.top = 0;
+ sink_fmt.width = fmt->width;
+ sink_fmt.height = fmt->height;
+ }
+
+ switch (sel->target) {
+ case V4L2_SEL_TGT_CROP_BOUNDS:
+ case V4L2_SEL_TGT_NATIVE_SIZE:
+ if (ssd == sensor->pixel_array)
+ ccs_get_native_size(ssd, &sel->r);
+ else if (sel->pad == ssd->sink_pad)
+ sel->r = sink_fmt;
+ else
+ sel->r = *comp;
+ break;
+ case V4L2_SEL_TGT_CROP:
+ case V4L2_SEL_TGT_COMPOSE_BOUNDS:
+ sel->r = *crops[sel->pad];
+ break;
+ case V4L2_SEL_TGT_COMPOSE:
+ sel->r = *comp;
+ break;
+ }
+
+ return 0;
+}
+
+static int ccs_get_selection(struct v4l2_subdev *subdev,
+ struct v4l2_subdev_pad_config *cfg,
+ struct v4l2_subdev_selection *sel)
+{
+ struct ccs_sensor *sensor = to_ccs_sensor(subdev);
+ int rval;
+
+ mutex_lock(&sensor->mutex);
+ rval = __ccs_get_selection(subdev, cfg, sel);
+ mutex_unlock(&sensor->mutex);
+
+ return rval;
+}
+
+static int ccs_set_selection(struct v4l2_subdev *subdev,
+ struct v4l2_subdev_pad_config *cfg,
+ struct v4l2_subdev_selection *sel)
+{
+ struct ccs_sensor *sensor = to_ccs_sensor(subdev);
+ int ret;
+
+ ret = __ccs_sel_supported(subdev, sel);
+ if (ret)
+ return ret;
+
+ mutex_lock(&sensor->mutex);
+
+ sel->r.left = max(0, sel->r.left & ~1);
+ sel->r.top = max(0, sel->r.top & ~1);
+ sel->r.width = CCS_ALIGN_DIM(sel->r.width, sel->flags);
+ sel->r.height = CCS_ALIGN_DIM(sel->r.height, sel->flags);
+
+ sel->r.width = max_t(unsigned int,
+ CCS_LIM(sensor, MIN_X_OUTPUT_SIZE),
+ sel->r.width);
+ sel->r.height = max_t(unsigned int,
+ CCS_LIM(sensor, MIN_Y_OUTPUT_SIZE),
+ sel->r.height);
+
+ switch (sel->target) {
+ case V4L2_SEL_TGT_CROP:
+ ret = ccs_set_crop(subdev, cfg, sel);
+ break;
+ case V4L2_SEL_TGT_COMPOSE:
+ ret = ccs_set_compose(subdev, cfg, sel);
+ break;
+ default:
+ ret = -EINVAL;
+ }
+
+ mutex_unlock(&sensor->mutex);
+ return ret;
+}
+
+static int ccs_get_skip_frames(struct v4l2_subdev *subdev, u32 *frames)
+{
+ struct ccs_sensor *sensor = to_ccs_sensor(subdev);
+
+ *frames = sensor->frame_skip;
+ return 0;
+}
+
+static int ccs_get_skip_top_lines(struct v4l2_subdev *subdev, u32 *lines)
+{
+ struct ccs_sensor *sensor = to_ccs_sensor(subdev);
+
+ *lines = sensor->image_start;
+
+ return 0;
+}
+
+/* -----------------------------------------------------------------------------
+ * sysfs attributes
+ */
+
+static ssize_t
+ccs_sysfs_nvm_read(struct device *dev, struct device_attribute *attr,
+ char *buf)
+{
+ struct v4l2_subdev *subdev = i2c_get_clientdata(to_i2c_client(dev));
+ struct i2c_client *client = v4l2_get_subdevdata(subdev);
+ struct ccs_sensor *sensor = to_ccs_sensor(subdev);
+ int rval;
+
+ if (!sensor->dev_init_done)
+ return -EBUSY;
+
+ rval = ccs_pm_get_init(sensor);
+ if (rval < 0)
+ return -ENODEV;
+
+ rval = ccs_read_nvm(sensor, buf, PAGE_SIZE);
+ if (rval < 0) {
+ pm_runtime_put(&client->dev);
+ dev_err(&client->dev, "nvm read failed\n");
+ return -ENODEV;
+ }
+
+ pm_runtime_mark_last_busy(&client->dev);
+ pm_runtime_put_autosuspend(&client->dev);
+
+ /*
+ * NVM is still way below a PAGE_SIZE, so we can safely
+ * assume this for now.
+ */
+ return rval;
+}
+static DEVICE_ATTR(nvm, S_IRUGO, ccs_sysfs_nvm_read, NULL);
+
+static ssize_t
+ccs_sysfs_ident_read(struct device *dev, struct device_attribute *attr,
+ char *buf)
+{
+ struct v4l2_subdev *subdev = i2c_get_clientdata(to_i2c_client(dev));
+ struct ccs_sensor *sensor = to_ccs_sensor(subdev);
+ struct ccs_module_info *minfo = &sensor->minfo;
+
+ if (minfo->mipi_manufacturer_id)
+ return snprintf(buf, PAGE_SIZE, "%4.4x%4.4x%2.2x\n",
+ minfo->mipi_manufacturer_id, minfo->model_id,
+ minfo->revision_number_major) + 1;
+ else
+ return snprintf(buf, PAGE_SIZE, "%2.2x%4.4x%2.2x\n",
+ minfo->smia_manufacturer_id, minfo->model_id,
+ minfo->revision_number_major) + 1;
+}
+
+static DEVICE_ATTR(ident, S_IRUGO, ccs_sysfs_ident_read, NULL);
+
+/* -----------------------------------------------------------------------------
+ * V4L2 subdev core operations
+ */
+
+static int ccs_identify_module(struct ccs_sensor *sensor)
+{
+ struct i2c_client *client = v4l2_get_subdevdata(&sensor->src->sd);
+ struct ccs_module_info *minfo = &sensor->minfo;
+ unsigned int i;
+ int rval = 0;
+
+ minfo->name = SMIAPP_NAME;
+
+ /* Module info */
+ rval = ccs_read(sensor, MODULE_MANUFACTURER_ID,
+ &minfo->mipi_manufacturer_id);
+ if (!rval && !minfo->mipi_manufacturer_id)
+ rval = ccs_read_addr_8only(sensor,
+ SMIAPP_REG_U8_MANUFACTURER_ID,
+ &minfo->smia_manufacturer_id);
+ if (!rval)
+ rval = ccs_read_addr_8only(sensor, CCS_R_MODULE_MODEL_ID,
+ &minfo->model_id);
+ if (!rval)
+ rval = ccs_read_addr_8only(sensor,
+ CCS_R_MODULE_REVISION_NUMBER_MAJOR,
+ &minfo->revision_number_major);
+ if (!rval)
+ rval = ccs_read_addr_8only(sensor,
+ CCS_R_MODULE_REVISION_NUMBER_MINOR,
+ &minfo->revision_number_minor);
+ if (!rval)
+ rval = ccs_read_addr_8only(sensor, CCS_R_MODULE_DATE_YEAR,
+ &minfo->module_year);
+ if (!rval)
+ rval = ccs_read_addr_8only(sensor, CCS_R_MODULE_DATE_MONTH,
+ &minfo->module_month);
+ if (!rval)
+ rval = ccs_read_addr_8only(sensor, CCS_R_MODULE_DATE_DAY,
+ &minfo->module_day);
+
+ /* Sensor info */
+ if (!rval)
+ rval = ccs_read(sensor, SENSOR_MANUFACTURER_ID,
+ &minfo->sensor_mipi_manufacturer_id);
+ if (!rval && !minfo->sensor_mipi_manufacturer_id)
+ rval = ccs_read_addr_8only(sensor,
+ CCS_R_SENSOR_MANUFACTURER_ID,
+ &minfo->sensor_smia_manufacturer_id);
+ if (!rval)
+ rval = ccs_read_addr_8only(sensor,
+ CCS_R_SENSOR_MODEL_ID,
+ &minfo->sensor_model_id);
+ if (!rval)
+ rval = ccs_read_addr_8only(sensor,
+ CCS_R_SENSOR_REVISION_NUMBER,
+ &minfo->sensor_revision_number);
+ if (!rval)
+ rval = ccs_read_addr_8only(sensor,
+ CCS_R_SENSOR_FIRMWARE_VERSION,
+ &minfo->sensor_firmware_version);
+
+ /* SMIA */
+ if (!rval)
+ rval = ccs_read(sensor, MIPI_CCS_VERSION, &minfo->ccs_version);
+ if (!rval && !minfo->ccs_version)
+ rval = ccs_read_addr_8only(sensor, SMIAPP_REG_U8_SMIA_VERSION,
+ &minfo->smia_version);
+ if (!rval && !minfo->ccs_version)
+ rval = ccs_read_addr_8only(sensor, SMIAPP_REG_U8_SMIAPP_VERSION,
+ &minfo->smiapp_version);
+
+ if (rval) {
+ dev_err(&client->dev, "sensor detection failed\n");
+ return -ENODEV;
+ }
+
+ if (minfo->mipi_manufacturer_id)
+ dev_dbg(&client->dev, "MIPI CCS module 0x%4.4x-0x%4.4x\n",
+ minfo->mipi_manufacturer_id, minfo->model_id);
+ else
+ dev_dbg(&client->dev, "SMIA module 0x%2.2x-0x%4.4x\n",
+ minfo->smia_manufacturer_id, minfo->model_id);
+
+ dev_dbg(&client->dev,
+ "module revision 0x%2.2x-0x%2.2x date %2.2d-%2.2d-%2.2d\n",
+ minfo->revision_number_major, minfo->revision_number_minor,
+ minfo->module_year, minfo->module_month, minfo->module_day);
+
+ if (minfo->sensor_mipi_manufacturer_id)
+ dev_dbg(&client->dev, "MIPI CCS sensor 0x%4.4x-0x%4.4x\n",
+ minfo->sensor_mipi_manufacturer_id,
+ minfo->sensor_model_id);
+ else
+ dev_dbg(&client->dev, "SMIA sensor 0x%2.2x-0x%4.4x\n",
+ minfo->sensor_smia_manufacturer_id,
+ minfo->sensor_model_id);
+
+ dev_dbg(&client->dev,
+ "sensor revision 0x%2.2x firmware version 0x%2.2x\n",
+ minfo->sensor_revision_number, minfo->sensor_firmware_version);
+
+ if (minfo->ccs_version)
+ dev_dbg(&client->dev, "MIPI CCS version %u.%u",
+ (minfo->ccs_version & CCS_MIPI_CCS_VERSION_MAJOR_MASK)
+ >> CCS_MIPI_CCS_VERSION_MAJOR_SHIFT,
+ (minfo->ccs_version & CCS_MIPI_CCS_VERSION_MINOR_MASK));
+ else
+ dev_dbg(&client->dev,
+ "smia version %2.2d smiapp version %2.2d\n",
+ minfo->smia_version, minfo->smiapp_version);
+
+ /*
+ * Some modules have bad data in the lvalues below. Hope the
+ * rvalues have better stuff. The lvalues are module
+ * parameters whereas the rvalues are sensor parameters.
+ */
+ if (minfo->sensor_smia_manufacturer_id &&
+ !minfo->smia_manufacturer_id && !minfo->model_id) {
+ minfo->smia_manufacturer_id =
+ minfo->sensor_smia_manufacturer_id;
+ minfo->model_id = minfo->sensor_model_id;
+ minfo->revision_number_major = minfo->sensor_revision_number;
+ }
+
+ for (i = 0; i < ARRAY_SIZE(ccs_module_idents); i++) {
+ if (ccs_module_idents[i].mipi_manufacturer_id &&
+ ccs_module_idents[i].mipi_manufacturer_id
+ != minfo->mipi_manufacturer_id)
+ continue;
+ if (ccs_module_idents[i].smia_manufacturer_id &&
+ ccs_module_idents[i].smia_manufacturer_id
+ != minfo->smia_manufacturer_id)
+ continue;
+ if (ccs_module_idents[i].model_id != minfo->model_id)
+ continue;
+ if (ccs_module_idents[i].flags
+ & CCS_MODULE_IDENT_FLAG_REV_LE) {
+ if (ccs_module_idents[i].revision_number_major
+ < minfo->revision_number_major)
+ continue;
+ } else {
+ if (ccs_module_idents[i].revision_number_major
+ != minfo->revision_number_major)
+ continue;
+ }
+
+ minfo->name = ccs_module_idents[i].name;
+ minfo->quirk = ccs_module_idents[i].quirk;
+ break;
+ }
+
+ if (i >= ARRAY_SIZE(ccs_module_idents))
+ dev_warn(&client->dev,
+ "no quirks for this module; let's hope it's fully compliant\n");
+
+ dev_dbg(&client->dev, "the sensor is called %s\n",
+ minfo->name);
+
+ return 0;
+}
+
+static const struct v4l2_subdev_ops ccs_ops;
+static const struct v4l2_subdev_internal_ops ccs_internal_ops;
+static const struct media_entity_operations ccs_entity_ops;
+
+static int ccs_register_subdev(struct ccs_sensor *sensor,
+ struct ccs_subdev *ssd,
+ struct ccs_subdev *sink_ssd,
+ u16 source_pad, u16 sink_pad, u32 link_flags)
+{
+ struct i2c_client *client = v4l2_get_subdevdata(&sensor->src->sd);
+ int rval;
+
+ if (!sink_ssd)
+ return 0;
+
+ rval = media_entity_pads_init(&ssd->sd.entity,
+ ssd->npads, ssd->pads);
+ if (rval) {
+ dev_err(&client->dev,
+ "media_entity_pads_init failed\n");
+ return rval;
+ }
+
+ rval = v4l2_device_register_subdev(sensor->src->sd.v4l2_dev,
+ &ssd->sd);
+ if (rval) {
+ dev_err(&client->dev,
+ "v4l2_device_register_subdev failed\n");
+ return rval;
+ }
+
+ rval = media_create_pad_link(&ssd->sd.entity, source_pad,
+ &sink_ssd->sd.entity, sink_pad,
+ link_flags);
+ if (rval) {
+ dev_err(&client->dev,
+ "media_create_pad_link failed\n");
+ v4l2_device_unregister_subdev(&ssd->sd);
+ return rval;
+ }
+
+ return 0;
+}
+
+static void ccs_unregistered(struct v4l2_subdev *subdev)
+{
+ struct ccs_sensor *sensor = to_ccs_sensor(subdev);
+ unsigned int i;
+
+ for (i = 1; i < sensor->ssds_used; i++)
+ v4l2_device_unregister_subdev(&sensor->ssds[i].sd);
+}
+
+static int ccs_registered(struct v4l2_subdev *subdev)
+{
+ struct ccs_sensor *sensor = to_ccs_sensor(subdev);
+ int rval;
+
+ if (sensor->scaler) {
+ rval = ccs_register_subdev(sensor, sensor->binner,
+ sensor->scaler,
+ CCS_PAD_SRC, CCS_PAD_SINK,
+ MEDIA_LNK_FL_ENABLED |
+ MEDIA_LNK_FL_IMMUTABLE);
+ if (rval < 0)
+ return rval;
+ }
+
+ rval = ccs_register_subdev(sensor, sensor->pixel_array, sensor->binner,
+ CCS_PA_PAD_SRC, CCS_PAD_SINK,
+ MEDIA_LNK_FL_ENABLED |
+ MEDIA_LNK_FL_IMMUTABLE);
+ if (rval)
+ goto out_err;
+
+ return 0;
+
+out_err:
+ ccs_unregistered(subdev);
+
+ return rval;
+}
+
+static void ccs_cleanup(struct ccs_sensor *sensor)
+{
+ struct i2c_client *client = v4l2_get_subdevdata(&sensor->src->sd);
+
+ device_remove_file(&client->dev, &dev_attr_nvm);
+ device_remove_file(&client->dev, &dev_attr_ident);
+
+ ccs_free_controls(sensor);
+}
+
+static void ccs_create_subdev(struct ccs_sensor *sensor,
+ struct ccs_subdev *ssd, const char *name,
+ unsigned short num_pads)
+{
+ struct i2c_client *client = v4l2_get_subdevdata(&sensor->src->sd);
+
+ if (!ssd)
+ return;
+
+ if (ssd != sensor->src)
+ v4l2_subdev_init(&ssd->sd, &ccs_ops);
+
+ ssd->sd.flags |= V4L2_SUBDEV_FL_HAS_DEVNODE;
+ ssd->sensor = sensor;
+
+ ssd->npads = num_pads;
+ ssd->source_pad = num_pads - 1;
+
+ v4l2_i2c_subdev_set_name(&ssd->sd, client, sensor->minfo.name, name);
+
+ ccs_get_native_size(ssd, &ssd->sink_fmt);
+
+ ssd->compose.width = ssd->sink_fmt.width;
+ ssd->compose.height = ssd->sink_fmt.height;
+ ssd->crop[ssd->source_pad] = ssd->compose;
+ ssd->pads[ssd->source_pad].flags = MEDIA_PAD_FL_SOURCE;
+ if (ssd != sensor->pixel_array) {
+ ssd->crop[ssd->sink_pad] = ssd->compose;
+ ssd->pads[ssd->sink_pad].flags = MEDIA_PAD_FL_SINK;
+ }
+
+ ssd->sd.entity.ops = &ccs_entity_ops;
+
+ if (ssd == sensor->src)
+ return;
+
+ ssd->sd.internal_ops = &ccs_internal_ops;
+ ssd->sd.owner = THIS_MODULE;
+ ssd->sd.dev = &client->dev;
+ v4l2_set_subdevdata(&ssd->sd, client);
+}
+
+static int ccs_open(struct v4l2_subdev *sd, struct v4l2_subdev_fh *fh)
+{
+ struct ccs_subdev *ssd = to_ccs_subdev(sd);
+ struct ccs_sensor *sensor = ssd->sensor;
+ unsigned int i;
+
+ mutex_lock(&sensor->mutex);
+
+ for (i = 0; i < ssd->npads; i++) {
+ struct v4l2_mbus_framefmt *try_fmt =
+ v4l2_subdev_get_try_format(sd, fh->pad, i);
+ struct v4l2_rect *try_crop =
+ v4l2_subdev_get_try_crop(sd, fh->pad, i);
+ struct v4l2_rect *try_comp;
+
+ ccs_get_native_size(ssd, try_crop);
+
+ try_fmt->width = try_crop->width;
+ try_fmt->height = try_crop->height;
+ try_fmt->code = sensor->internal_csi_format->code;
+ try_fmt->field = V4L2_FIELD_NONE;
+
+ if (ssd != sensor->pixel_array)
+ continue;
+
+ try_comp = v4l2_subdev_get_try_compose(sd, fh->pad, i);
+ *try_comp = *try_crop;
+ }
+
+ mutex_unlock(&sensor->mutex);
+
+ return 0;
+}
+
+static const struct v4l2_subdev_video_ops ccs_video_ops = {
+ .s_stream = ccs_set_stream,
+};
+
+static const struct v4l2_subdev_pad_ops ccs_pad_ops = {
+ .enum_mbus_code = ccs_enum_mbus_code,
+ .get_fmt = ccs_get_format,
+ .set_fmt = ccs_set_format,
+ .get_selection = ccs_get_selection,
+ .set_selection = ccs_set_selection,
+};
+
+static const struct v4l2_subdev_sensor_ops ccs_sensor_ops = {
+ .g_skip_frames = ccs_get_skip_frames,
+ .g_skip_top_lines = ccs_get_skip_top_lines,
+};
+
+static const struct v4l2_subdev_ops ccs_ops = {
+ .video = &ccs_video_ops,
+ .pad = &ccs_pad_ops,
+ .sensor = &ccs_sensor_ops,
+};
+
+static const struct media_entity_operations ccs_entity_ops = {
+ .link_validate = v4l2_subdev_link_validate,
+};
+
+static const struct v4l2_subdev_internal_ops ccs_internal_src_ops = {
+ .registered = ccs_registered,
+ .unregistered = ccs_unregistered,
+ .open = ccs_open,
+};
+
+static const struct v4l2_subdev_internal_ops ccs_internal_ops = {
+ .open = ccs_open,
+};
+
+/* -----------------------------------------------------------------------------
+ * I2C Driver
+ */
+
+static int __maybe_unused ccs_suspend(struct device *dev)
+{
+ struct i2c_client *client = to_i2c_client(dev);
+ struct v4l2_subdev *subdev = i2c_get_clientdata(client);
+ struct ccs_sensor *sensor = to_ccs_sensor(subdev);
+ bool streaming = sensor->streaming;
+ int rval;
+
+ rval = pm_runtime_get_sync(dev);
+ if (rval < 0) {
+ if (rval != -EBUSY && rval != -EAGAIN)
+ pm_runtime_set_active(&client->dev);
+ pm_runtime_put(dev);
+ return -EAGAIN;
+ }
+
+ if (sensor->streaming)
+ ccs_stop_streaming(sensor);
+
+ /* save state for resume */
+ sensor->streaming = streaming;
+
+ return 0;
+}
+
+static int __maybe_unused ccs_resume(struct device *dev)
+{
+ struct i2c_client *client = to_i2c_client(dev);
+ struct v4l2_subdev *subdev = i2c_get_clientdata(client);
+ struct ccs_sensor *sensor = to_ccs_sensor(subdev);
+ int rval = 0;
+
+ pm_runtime_put(dev);
+
+ if (sensor->streaming)
+ rval = ccs_start_streaming(sensor);
+
+ return rval;
+}
+
+static struct ccs_hwconfig *ccs_get_hwconfig(struct device *dev)
+{
+ struct ccs_hwconfig *hwcfg;
+ struct v4l2_fwnode_endpoint bus_cfg = { .bus_type = 0 };
+ struct fwnode_handle *ep;
+ struct fwnode_handle *fwnode = dev_fwnode(dev);
+ u32 rotation;
+ int i;
+ int rval;
+
+ if (!fwnode)
+ return dev->platform_data;
+
+ ep = fwnode_graph_get_next_endpoint(fwnode, NULL);
+ if (!ep)
+ return NULL;
+
+ bus_cfg.bus_type = V4L2_MBUS_CSI2_DPHY;
+ rval = v4l2_fwnode_endpoint_alloc_parse(ep, &bus_cfg);
+ if (rval == -ENXIO) {
+ bus_cfg = (struct v4l2_fwnode_endpoint)
+ { .bus_type = V4L2_MBUS_CCP2 };
+ rval = v4l2_fwnode_endpoint_alloc_parse(ep, &bus_cfg);
+ }
+ if (rval)
+ goto out_err;
+
+ hwcfg = devm_kzalloc(dev, sizeof(*hwcfg), GFP_KERNEL);
+ if (!hwcfg)
+ goto out_err;
+
+ switch (bus_cfg.bus_type) {
+ case V4L2_MBUS_CSI2_DPHY:
+ hwcfg->csi_signalling_mode = CCS_CSI_SIGNALING_MODE_CSI_2_DPHY;
+ hwcfg->lanes = bus_cfg.bus.mipi_csi2.num_data_lanes;
+ break;
+ case V4L2_MBUS_CCP2:
+ hwcfg->csi_signalling_mode = (bus_cfg.bus.mipi_csi1.strobe) ?
+ SMIAPP_CSI_SIGNALLING_MODE_CCP2_DATA_STROBE :
+ SMIAPP_CSI_SIGNALLING_MODE_CCP2_DATA_CLOCK;
+ hwcfg->lanes = 1;
+ break;
+ default:
+ dev_err(dev, "unsupported bus %u\n", bus_cfg.bus_type);
+ goto out_err;
+ }
+
+ dev_dbg(dev, "lanes %u\n", hwcfg->lanes);
+
+ rval = fwnode_property_read_u32(fwnode, "rotation", &rotation);
+ if (!rval) {
+ switch (rotation) {
+ case 180:
+ hwcfg->module_board_orient =
+ CCS_MODULE_BOARD_ORIENT_180;
+ fallthrough;
+ case 0:
+ break;
+ default:
+ dev_err(dev, "invalid rotation %u\n", rotation);
+ goto out_err;
+ }
+ }
+
+ rval = fwnode_property_read_u32(dev_fwnode(dev), "clock-frequency",
+ &hwcfg->ext_clk);
+ if (rval)
+ dev_info(dev, "can't get clock-frequency\n");
+
+ dev_dbg(dev, "clk %d, mode %d\n", hwcfg->ext_clk,
+ hwcfg->csi_signalling_mode);
+
+ if (!bus_cfg.nr_of_link_frequencies) {
+ dev_warn(dev, "no link frequencies defined\n");
+ goto out_err;
+ }
+
+ hwcfg->op_sys_clock = devm_kcalloc(
+ dev, bus_cfg.nr_of_link_frequencies + 1 /* guardian */,
+ sizeof(*hwcfg->op_sys_clock), GFP_KERNEL);
+ if (!hwcfg->op_sys_clock)
+ goto out_err;
+
+ for (i = 0; i < bus_cfg.nr_of_link_frequencies; i++) {
+ hwcfg->op_sys_clock[i] = bus_cfg.link_frequencies[i];
+ dev_dbg(dev, "freq %d: %lld\n", i, hwcfg->op_sys_clock[i]);
+ }
+
+ v4l2_fwnode_endpoint_free(&bus_cfg);
+ fwnode_handle_put(ep);
+ return hwcfg;
+
+out_err:
+ v4l2_fwnode_endpoint_free(&bus_cfg);
+ fwnode_handle_put(ep);
+ return NULL;
+}
+
+static int ccs_probe(struct i2c_client *client)
+{
+ struct ccs_sensor *sensor;
+ struct ccs_hwconfig *hwcfg = ccs_get_hwconfig(&client->dev);
+ unsigned int i;
+ int rval;
+
+ if (hwcfg == NULL)
+ return -ENODEV;
+
+ sensor = devm_kzalloc(&client->dev, sizeof(*sensor), GFP_KERNEL);
+ if (sensor == NULL)
+ return -ENOMEM;
+
+ sensor->hwcfg = hwcfg;
+ sensor->src = &sensor->ssds[sensor->ssds_used];
+
+ v4l2_i2c_subdev_init(&sensor->src->sd, client, &ccs_ops);
+ sensor->src->sd.internal_ops = &ccs_internal_src_ops;
+
+ sensor->vana = devm_regulator_get(&client->dev, "vana");
+ if (IS_ERR(sensor->vana)) {
+ dev_err(&client->dev, "could not get regulator for vana\n");
+ return PTR_ERR(sensor->vana);
+ }
+
+ sensor->ext_clk = devm_clk_get(&client->dev, NULL);
+ if (PTR_ERR(sensor->ext_clk) == -ENOENT) {
+ dev_info(&client->dev, "no clock defined, continuing...\n");
+ sensor->ext_clk = NULL;
+ } else if (IS_ERR(sensor->ext_clk)) {
+ dev_err(&client->dev, "could not get clock (%ld)\n",
+ PTR_ERR(sensor->ext_clk));
+ return -EPROBE_DEFER;
+ }
+
+ if (sensor->ext_clk) {
+ if (sensor->hwcfg->ext_clk) {
+ unsigned long rate;
+
+ rval = clk_set_rate(sensor->ext_clk,
+ sensor->hwcfg->ext_clk);
+ if (rval < 0) {
+ dev_err(&client->dev,
+ "unable to set clock freq to %u\n",
+ sensor->hwcfg->ext_clk);
+ return rval;
+ }
+
+ rate = clk_get_rate(sensor->ext_clk);
+ if (rate != sensor->hwcfg->ext_clk) {
+ dev_err(&client->dev,
+ "can't set clock freq, asked for %u but got %lu\n",
+ sensor->hwcfg->ext_clk, rate);
+ return rval;
+ }
+ } else {
+ sensor->hwcfg->ext_clk = clk_get_rate(sensor->ext_clk);
+ dev_dbg(&client->dev, "obtained clock freq %u\n",
+ sensor->hwcfg->ext_clk);
+ }
+ } else if (sensor->hwcfg->ext_clk) {
+ dev_dbg(&client->dev, "assuming clock freq %u\n",
+ sensor->hwcfg->ext_clk);
+ } else {
+ dev_err(&client->dev, "unable to obtain clock freq\n");
+ return -EINVAL;
+ }
+
+ sensor->xshutdown = devm_gpiod_get_optional(&client->dev, "xshutdown",
+ GPIOD_OUT_LOW);
+ if (IS_ERR(sensor->xshutdown))
+ return PTR_ERR(sensor->xshutdown);
+
+ rval = ccs_power_on(&client->dev);
+ if (rval < 0)
+ return rval;
+
+ mutex_init(&sensor->mutex);
+
+ rval = ccs_identify_module(sensor);
+ if (rval) {
+ rval = -ENODEV;
+ goto out_power_off;
+ }
+
+ rval = ccs_read_all_limits(sensor);
+ if (rval)
+ goto out_power_off;
+
+ rval = ccs_read_frame_fmt(sensor);
+ if (rval) {
+ rval = -ENODEV;
+ goto out_free_ccs_limits;
+ }
+
+ /*
+ * Handle Sensor Module orientation on the board.
+ *
+ * The application of H-FLIP and V-FLIP on the sensor is modified by
+ * the sensor orientation on the board.
+ *
+ * For CCS_BOARD_SENSOR_ORIENT_180 the default behaviour is to set
+ * both H-FLIP and V-FLIP for normal operation which also implies
+ * that a set/unset operation for user space HFLIP and VFLIP v4l2
+ * controls will need to be internally inverted.
+ *
+ * Rotation also changes the bayer pattern.
+ */
+ if (sensor->hwcfg->module_board_orient ==
+ CCS_MODULE_BOARD_ORIENT_180)
+ sensor->hvflip_inv_mask =
+ CCS_IMAGE_ORIENTATION_HORIZONTAL_MIRROR |
+ CCS_IMAGE_ORIENTATION_VERTICAL_FLIP;
+
+ rval = ccs_call_quirk(sensor, limits);
+ if (rval) {
+ dev_err(&client->dev, "limits quirks failed\n");
+ goto out_free_ccs_limits;
+ }
+
+ if (CCS_LIM(sensor, BINNING_CAPABILITY)) {
+ sensor->nbinning_subtypes =
+ min_t(u8, CCS_LIM(sensor, BINNING_SUB_TYPES),
+ CCS_LIM_BINNING_SUB_TYPE_MAX_N);
+
+ for (i = 0; i < sensor->nbinning_subtypes; i++) {
+ sensor->binning_subtypes[i].horizontal =
+ CCS_LIM_AT(sensor, BINNING_SUB_TYPE, i) >>
+ CCS_BINNING_SUB_TYPE_COLUMN_SHIFT;
+ sensor->binning_subtypes[i].vertical =
+ CCS_LIM_AT(sensor, BINNING_SUB_TYPE, i) &
+ CCS_BINNING_SUB_TYPE_ROW_MASK;
+
+ dev_dbg(&client->dev, "binning %xx%x\n",
+ sensor->binning_subtypes[i].horizontal,
+ sensor->binning_subtypes[i].vertical);
+ }
+ }
+ sensor->binning_horizontal = 1;
+ sensor->binning_vertical = 1;
+
+ if (device_create_file(&client->dev, &dev_attr_ident) != 0) {
+ dev_err(&client->dev, "sysfs ident entry creation failed\n");
+ rval = -ENOENT;
+ goto out_free_ccs_limits;
+ }
+
+ if (sensor->minfo.smiapp_version &&
+ CCS_LIM(sensor, DATA_TRANSFER_IF_CAPABILITY) &
+ CCS_DATA_TRANSFER_IF_CAPABILITY_SUPPORTED) {
+ if (device_create_file(&client->dev, &dev_attr_nvm) != 0) {
+ dev_err(&client->dev, "sysfs nvm entry failed\n");
+ rval = -EBUSY;
+ goto out_cleanup;
+ }
+ }
+
+ /* We consider this as profile 0 sensor if any of these are zero. */
+ if (!CCS_LIM(sensor, MIN_OP_SYS_CLK_DIV) ||
+ !CCS_LIM(sensor, MAX_OP_SYS_CLK_DIV) ||
+ !CCS_LIM(sensor, MIN_OP_PIX_CLK_DIV) ||
+ !CCS_LIM(sensor, MAX_OP_PIX_CLK_DIV)) {
+ sensor->minfo.smiapp_profile = SMIAPP_PROFILE_0;
+ } else if (CCS_LIM(sensor, SCALING_CAPABILITY)
+ != CCS_SCALING_CAPABILITY_NONE) {
+ if (CCS_LIM(sensor, SCALING_CAPABILITY)
+ == CCS_SCALING_CAPABILITY_HORIZONTAL)
+ sensor->minfo.smiapp_profile = SMIAPP_PROFILE_1;
+ else
+ sensor->minfo.smiapp_profile = SMIAPP_PROFILE_2;
+ sensor->scaler = &sensor->ssds[sensor->ssds_used];
+ sensor->ssds_used++;
+ } else if (CCS_LIM(sensor, DIGITAL_CROP_CAPABILITY)
+ == CCS_DIGITAL_CROP_CAPABILITY_INPUT_CROP) {
+ sensor->scaler = &sensor->ssds[sensor->ssds_used];
+ sensor->ssds_used++;
+ }
+ sensor->binner = &sensor->ssds[sensor->ssds_used];
+ sensor->ssds_used++;
+ sensor->pixel_array = &sensor->ssds[sensor->ssds_used];
+ sensor->ssds_used++;
+
+ sensor->scale_m = CCS_LIM(sensor, SCALER_N_MIN);
+
+ /* prepare PLL configuration input values */
+ sensor->pll.bus_type = SMIAPP_PLL_BUS_TYPE_CSI2;
+ sensor->pll.csi2.lanes = sensor->hwcfg->lanes;
+ sensor->pll.ext_clk_freq_hz = sensor->hwcfg->ext_clk;
+ sensor->pll.scale_n = CCS_LIM(sensor, SCALER_N_MIN);
+ /* Profile 0 sensors have no separate OP clock branch. */
+ if (sensor->minfo.smiapp_profile == SMIAPP_PROFILE_0)
+ sensor->pll.flags |= SMIAPP_PLL_FLAG_NO_OP_CLOCKS;
+
+ ccs_create_subdev(sensor, sensor->scaler, " scaler", 2);
+ ccs_create_subdev(sensor, sensor->binner, " binner", 2);
+ ccs_create_subdev(sensor, sensor->pixel_array, " pixel_array", 1);
+
+ dev_dbg(&client->dev, "profile %d\n", sensor->minfo.smiapp_profile);
+
+ sensor->pixel_array->sd.entity.function = MEDIA_ENT_F_CAM_SENSOR;
+
+ rval = ccs_init_controls(sensor);
+ if (rval < 0)
+ goto out_cleanup;
+
+ rval = ccs_call_quirk(sensor, init);
+ if (rval)
+ goto out_cleanup;
+
+ rval = ccs_get_mbus_formats(sensor);
+ if (rval) {
+ rval = -ENODEV;
+ goto out_cleanup;
+ }
+
+ rval = ccs_init_late_controls(sensor);
+ if (rval) {
+ rval = -ENODEV;
+ goto out_cleanup;
+ }
+
+ mutex_lock(&sensor->mutex);
+ rval = ccs_pll_blanking_update(sensor);
+ mutex_unlock(&sensor->mutex);
+ if (rval) {
+ dev_err(&client->dev, "update mode failed\n");
+ goto out_cleanup;
+ }
+
+ sensor->streaming = false;
+ sensor->dev_init_done = true;
+
+ rval = media_entity_pads_init(&sensor->src->sd.entity, 2,
+ sensor->src->pads);
+ if (rval < 0)
+ goto out_media_entity_cleanup;
+
+ pm_runtime_set_active(&client->dev);
+ pm_runtime_get_noresume(&client->dev);
+ pm_runtime_enable(&client->dev);
+
+ rval = v4l2_async_register_subdev_sensor_common(&sensor->src->sd);
+ if (rval < 0)
+ goto out_disable_runtime_pm;
+
+ pm_runtime_set_autosuspend_delay(&client->dev, 1000);
+ pm_runtime_use_autosuspend(&client->dev);
+ pm_runtime_put_autosuspend(&client->dev);
+
+ return 0;
+
+out_disable_runtime_pm:
+ pm_runtime_put_noidle(&client->dev);
+ pm_runtime_disable(&client->dev);
+
+out_media_entity_cleanup:
+ media_entity_cleanup(&sensor->src->sd.entity);
+
+out_cleanup:
+ ccs_cleanup(sensor);
+
+out_free_ccs_limits:
+ kfree(sensor->ccs_limits);
+
+out_power_off:
+ ccs_power_off(&client->dev);
+ mutex_destroy(&sensor->mutex);
+
+ return rval;
+}
+
+static int ccs_remove(struct i2c_client *client)
+{
+ struct v4l2_subdev *subdev = i2c_get_clientdata(client);
+ struct ccs_sensor *sensor = to_ccs_sensor(subdev);
+ unsigned int i;
+
+ v4l2_async_unregister_subdev(subdev);
+
+ pm_runtime_disable(&client->dev);
+ if (!pm_runtime_status_suspended(&client->dev))
+ ccs_power_off(&client->dev);
+ pm_runtime_set_suspended(&client->dev);
+
+ for (i = 0; i < sensor->ssds_used; i++) {
+ v4l2_device_unregister_subdev(&sensor->ssds[i].sd);
+ media_entity_cleanup(&sensor->ssds[i].sd.entity);
+ }
+ ccs_cleanup(sensor);
+ mutex_destroy(&sensor->mutex);
+ kfree(sensor->ccs_limits);
+
+ return 0;
+}
+
+static const struct of_device_id ccs_of_table[] = {
+ { .compatible = "nokia,smia" },
+ { },
+};
+MODULE_DEVICE_TABLE(of, ccs_of_table);
+
+static const struct i2c_device_id ccs_id_table[] = {
+ { SMIAPP_NAME, 0 },
+ { },
+};
+MODULE_DEVICE_TABLE(i2c, ccs_id_table);
+
+static const struct dev_pm_ops ccs_pm_ops = {
+ SET_SYSTEM_SLEEP_PM_OPS(ccs_suspend, ccs_resume)
+ SET_RUNTIME_PM_OPS(ccs_power_off, ccs_power_on, NULL)
+};
+
+static struct i2c_driver ccs_i2c_driver = {
+ .driver = {
+ .of_match_table = ccs_of_table,
+ .name = CCS_NAME,
+ .pm = &ccs_pm_ops,
+ },
+ .probe_new = ccs_probe,
+ .remove = ccs_remove,
+ .id_table = ccs_id_table,
+};
+
+static int ccs_module_init(void)
+{
+ unsigned int i, l;
+
+ for (i = 0, l = 0; ccs_limits[i].size && l < CCS_L_LAST; i++) {
+ if (!(ccs_limits[i].flags & CCS_L_FL_SAME_REG)) {
+ ccs_limit_offsets[l + 1].lim =
+ ALIGN(ccs_limit_offsets[l].lim +
+ ccs_limits[i].size,
+ ccs_reg_width(ccs_limits[i + 1].reg));
+ ccs_limit_offsets[l].info = i;
+ l++;
+ } else {
+ ccs_limit_offsets[l].lim += ccs_limits[i].size;
+ }
+ }
+
+ if (WARN_ON(ccs_limits[i].size))
+ return -EINVAL;
+
+ if (WARN_ON(l != CCS_L_LAST))
+ return -EINVAL;
+
+ return i2c_register_driver(THIS_MODULE, &ccs_i2c_driver);
+}
+
+static void ccs_module_cleanup(void)
+{
+ i2c_del_driver(&ccs_i2c_driver);
+}
+
+module_init(ccs_module_init);
+module_exit(ccs_module_cleanup);
+
+MODULE_AUTHOR("Sakari Ailus <sakari.ailus@iki.fi>");
+MODULE_DESCRIPTION("Generic MIPI CCS/SMIA/SMIA++ camera sensor driver");
+MODULE_LICENSE("GPL v2");
--- /dev/null
+// SPDX-License-Identifier: GPL-2.0-only
+/*
+ * drivers/media/i2c/smiapp/ccs-quirk.c
+ *
+ * Generic driver for SMIA/SMIA++ compliant camera modules
+ *
+ * Copyright (C) 2011--2012 Nokia Corporation
+ * Contact: Sakari Ailus <sakari.ailus@iki.fi>
+ */
+
+#include <linux/delay.h>
+
+#include "ccs.h"
+#include "ccs-limits.h"
+
+static int ccs_write_addr_8s(struct ccs_sensor *sensor,
+ const struct ccs_reg_8 *regs, int len)
+{
+ struct i2c_client *client = v4l2_get_subdevdata(&sensor->src->sd);
+ int rval;
+
+ for (; len > 0; len--, regs++) {
+ rval = ccs_write_addr(sensor, regs->reg, regs->val);
+ if (rval < 0) {
+ dev_err(&client->dev,
+ "error %d writing reg 0x%4.4x, val 0x%2.2x",
+ rval, regs->reg, regs->val);
+ return rval;
+ }
+ }
+
+ return 0;
+}
+
+static int jt8ew9_limits(struct ccs_sensor *sensor)
+{
+ if (sensor->minfo.revision_number_major < 0x03)
+ sensor->frame_skip = 1;
+
+ /* Below 24 gain doesn't have effect at all, */
+ /* but ~59 is needed for full dynamic range */
+ ccs_replace_limit(sensor, CCS_L_ANALOG_GAIN_CODE_MIN, 0, 59);
+ ccs_replace_limit(sensor, CCS_L_ANALOG_GAIN_CODE_MAX, 0, 6000);
+
+ return 0;
+}
+
+static int jt8ew9_post_poweron(struct ccs_sensor *sensor)
+{
+ static const struct ccs_reg_8 regs[] = {
+ { 0x30a3, 0xd8 }, /* Output port control : LVDS ports only */
+ { 0x30ae, 0x00 }, /* 0x0307 pll_multiplier maximum value on PLL input 9.6MHz ( 19.2MHz is divided on pre_pll_div) */
+ { 0x30af, 0xd0 }, /* 0x0307 pll_multiplier maximum value on PLL input 9.6MHz ( 19.2MHz is divided on pre_pll_div) */
+ { 0x322d, 0x04 }, /* Adjusting Processing Image Size to Scaler Toshiba Recommendation Setting */
+ { 0x3255, 0x0f }, /* Horizontal Noise Reduction Control Toshiba Recommendation Setting */
+ { 0x3256, 0x15 }, /* Horizontal Noise Reduction Control Toshiba Recommendation Setting */
+ { 0x3258, 0x70 }, /* Analog Gain Control Toshiba Recommendation Setting */
+ { 0x3259, 0x70 }, /* Analog Gain Control Toshiba Recommendation Setting */
+ { 0x325f, 0x7c }, /* Analog Gain Control Toshiba Recommendation Setting */
+ { 0x3302, 0x06 }, /* Pixel Reference Voltage Control Toshiba Recommendation Setting */
+ { 0x3304, 0x00 }, /* Pixel Reference Voltage Control Toshiba Recommendation Setting */
+ { 0x3307, 0x22 }, /* Pixel Reference Voltage Control Toshiba Recommendation Setting */
+ { 0x3308, 0x8d }, /* Pixel Reference Voltage Control Toshiba Recommendation Setting */
+ { 0x331e, 0x0f }, /* Black Hole Sun Correction Control Toshiba Recommendation Setting */
+ { 0x3320, 0x30 }, /* Black Hole Sun Correction Control Toshiba Recommendation Setting */
+ { 0x3321, 0x11 }, /* Black Hole Sun Correction Control Toshiba Recommendation Setting */
+ { 0x3322, 0x98 }, /* Black Hole Sun Correction Control Toshiba Recommendation Setting */
+ { 0x3323, 0x64 }, /* Black Hole Sun Correction Control Toshiba Recommendation Setting */
+ { 0x3325, 0x83 }, /* Read Out Timing Control Toshiba Recommendation Setting */
+ { 0x3330, 0x18 }, /* Read Out Timing Control Toshiba Recommendation Setting */
+ { 0x333c, 0x01 }, /* Read Out Timing Control Toshiba Recommendation Setting */
+ { 0x3345, 0x2f }, /* Black Hole Sun Correction Control Toshiba Recommendation Setting */
+ { 0x33de, 0x38 }, /* Horizontal Noise Reduction Control Toshiba Recommendation Setting */
+ /* Taken from v03. No idea what the rest are. */
+ { 0x32e0, 0x05 },
+ { 0x32e1, 0x05 },
+ { 0x32e2, 0x04 },
+ { 0x32e5, 0x04 },
+ { 0x32e6, 0x04 },
+
+ };
+
+ return ccs_write_addr_8s(sensor, regs, ARRAY_SIZE(regs));
+}
+
+const struct ccs_quirk smiapp_jt8ew9_quirk = {
+ .limits = jt8ew9_limits,
+ .post_poweron = jt8ew9_post_poweron,
+};
+
+static int imx125es_post_poweron(struct ccs_sensor *sensor)
+{
+ /* Taken from v02. No idea what the other two are. */
+ static const struct ccs_reg_8 regs[] = {
+ /*
+ * 0x3302: clk during frame blanking:
+ * 0x00 - HS mode, 0x01 - LP11
+ */
+ { 0x3302, 0x01 },
+ { 0x302d, 0x00 },
+ { 0x3b08, 0x8c },
+ };
+
+ return ccs_write_addr_8s(sensor, regs, ARRAY_SIZE(regs));
+}
+
+const struct ccs_quirk smiapp_imx125es_quirk = {
+ .post_poweron = imx125es_post_poweron,
+};
+
+static int jt8ev1_limits(struct ccs_sensor *sensor)
+{
+ ccs_replace_limit(sensor, CCS_L_X_ADDR_MAX, 0, 4271);
+ ccs_replace_limit(sensor, CCS_L_MIN_LINE_BLANKING_PCK_BIN, 0, 184);
+
+ return 0;
+}
+
+static int jt8ev1_post_poweron(struct ccs_sensor *sensor)
+{
+ struct i2c_client *client = v4l2_get_subdevdata(&sensor->src->sd);
+ int rval;
+ static const struct ccs_reg_8 regs[] = {
+ { 0x3031, 0xcd }, /* For digital binning (EQ_MONI) */
+ { 0x30a3, 0xd0 }, /* FLASH STROBE enable */
+ { 0x3237, 0x00 }, /* For control of pulse timing for ADC */
+ { 0x3238, 0x43 },
+ { 0x3301, 0x06 }, /* For analog bias for sensor */
+ { 0x3302, 0x06 },
+ { 0x3304, 0x00 },
+ { 0x3305, 0x88 },
+ { 0x332a, 0x14 },
+ { 0x332c, 0x6b },
+ { 0x3336, 0x01 },
+ { 0x333f, 0x1f },
+ { 0x3355, 0x00 },
+ { 0x3356, 0x20 },
+ { 0x33bf, 0x20 }, /* Adjust the FBC speed */
+ { 0x33c9, 0x20 },
+ { 0x33ce, 0x30 }, /* Adjust the parameter for logic function */
+ { 0x33cf, 0xec }, /* For Black sun */
+ { 0x3328, 0x80 }, /* Ugh. No idea what's this. */
+ };
+ static const struct ccs_reg_8 regs_96[] = {
+ { 0x30ae, 0x00 }, /* For control of ADC clock */
+ { 0x30af, 0xd0 },
+ { 0x30b0, 0x01 },
+ };
+
+ rval = ccs_write_addr_8s(sensor, regs, ARRAY_SIZE(regs));
+ if (rval < 0)
+ return rval;
+
+ switch (sensor->hwcfg->ext_clk) {
+ case 9600000:
+ return ccs_write_addr_8s(sensor, regs_96,
+ ARRAY_SIZE(regs_96));
+ default:
+ dev_warn(&client->dev, "no MSRs for %d Hz ext_clk\n",
+ sensor->hwcfg->ext_clk);
+ return 0;
+ }
+}
+
+static int jt8ev1_pre_streamon(struct ccs_sensor *sensor)
+{
+ return ccs_write_addr(sensor, 0x3328, 0x00);
+}
+
+static int jt8ev1_post_streamoff(struct ccs_sensor *sensor)
+{
+ int rval;
+
+ /* Workaround: allows fast standby to work properly */
+ rval = ccs_write_addr(sensor, 0x3205, 0x04);
+ if (rval < 0)
+ return rval;
+
+ /* Wait for 1 ms + one line => 2 ms is likely enough */
+ usleep_range(2000, 2050);
+
+ /* Restore it */
+ rval = ccs_write_addr(sensor, 0x3205, 0x00);
+ if (rval < 0)
+ return rval;
+
+ return ccs_write_addr(sensor, 0x3328, 0x80);
+}
+
+static int jt8ev1_init(struct ccs_sensor *sensor)
+{
+ sensor->pll.flags |= SMIAPP_PLL_FLAG_OP_PIX_CLOCK_PER_LANE;
+
+ return 0;
+}
+
+const struct ccs_quirk smiapp_jt8ev1_quirk = {
+ .limits = jt8ev1_limits,
+ .post_poweron = jt8ev1_post_poweron,
+ .pre_streamon = jt8ev1_pre_streamon,
+ .post_streamoff = jt8ev1_post_streamoff,
+ .init = jt8ev1_init,
+};
+
+static int tcm8500md_limits(struct ccs_sensor *sensor)
+{
+ ccs_replace_limit(sensor, CCS_L_MIN_PLL_IP_CLK_FREQ_MHZ, 0, 2700000);
+
+ return 0;
+}
+
+const struct ccs_quirk smiapp_tcm8500md_quirk = {
+ .limits = tcm8500md_limits,
+};
--- /dev/null
+/* SPDX-License-Identifier: GPL-2.0-only */
+/*
+ * drivers/media/i2c/smiapp/ccs-quirk.h
+ *
+ * Generic driver for SMIA/SMIA++ compliant camera modules
+ *
+ * Copyright (C) 2011--2012 Nokia Corporation
+ * Contact: Sakari Ailus <sakari.ailus@iki.fi>
+ */
+
+#ifndef __CCS_QUIRK__
+#define __CCS_QUIRK__
+
+struct ccs_sensor;
+
+/**
+ * struct ccs_quirk - quirks for sensors that deviate from SMIA++ standard
+ *
+ * @limits: Replace sensor->limits with values which can't be read from
+ * sensor registers. Called the first time the sensor is powered up.
+ * @post_poweron: Called always after the sensor has been fully powered on.
+ * @pre_streamon: Called just before streaming is enabled.
+ * @post_streamon: Called right after stopping streaming.
+ * @pll_flags: Return flags for the PLL calculator.
+ * @init: Quirk initialisation, called the last in probe(). This is
+ * also appropriate for adding sensor specific controls, for instance.
+ * @reg_access: Register access quirk. The quirk may divert the access
+ * to another register, or no register at all.
+ *
+ * @write: Is this read (false) or write (true) access?
+ * @reg: Pointer to the register to access
+ * @value: Register value, set by the caller on write, or
+ * by the quirk on read
+ *
+ * @return: 0 on success, -ENOIOCTLCMD if no register
+ * access may be done by the caller (default read
+ * value is zero), else negative error code on error
+ */
+struct ccs_quirk {
+ int (*limits)(struct ccs_sensor *sensor);
+ int (*post_poweron)(struct ccs_sensor *sensor);
+ int (*pre_streamon)(struct ccs_sensor *sensor);
+ int (*post_streamoff)(struct ccs_sensor *sensor);
+ unsigned long (*pll_flags)(struct ccs_sensor *sensor);
+ int (*init)(struct ccs_sensor *sensor);
+ int (*reg_access)(struct ccs_sensor *sensor, bool write, u32 *reg,
+ u32 *val);
+ unsigned long flags;
+};
+
+#define CCS_QUIRK_FLAG_8BIT_READ_ONLY (1 << 0)
+
+struct ccs_reg_8 {
+ u16 reg;
+ u8 val;
+};
+
+#define CCS_MK_QUIRK_REG_8(_reg, _val) \
+ { \
+ .reg = (u16)_reg, \
+ .val = _val, \
+ }
+
+#define ccs_call_quirk(sensor, _quirk, ...) \
+ ((sensor)->minfo.quirk && \
+ (sensor)->minfo.quirk->_quirk ? \
+ (sensor)->minfo.quirk->_quirk(sensor, ##__VA_ARGS__) : 0)
+
+#define ccs_needs_quirk(sensor, _quirk) \
+ ((sensor)->minfo.quirk ? \
+ (sensor)->minfo.quirk->flags & _quirk : 0)
+
+extern const struct ccs_quirk smiapp_jt8ev1_quirk;
+extern const struct ccs_quirk smiapp_imx125es_quirk;
+extern const struct ccs_quirk smiapp_jt8ew9_quirk;
+extern const struct ccs_quirk smiapp_tcm8500md_quirk;
+
+#endif /* __CCS_QUIRK__ */
--- /dev/null
+// SPDX-License-Identifier: GPL-2.0-only
+/*
+ * drivers/media/i2c/smiapp/ccs-regs.c
+ *
+ * Generic driver for SMIA/SMIA++ compliant camera modules
+ *
+ * Copyright (C) 2011--2012 Nokia Corporation
+ * Contact: Sakari Ailus <sakari.ailus@iki.fi>
+ */
+
+#include <asm/unaligned.h>
+
+#include <linux/delay.h>
+#include <linux/i2c.h>
+
+#include "ccs.h"
+
+static uint32_t float_to_u32_mul_1000000(struct i2c_client *client,
+ uint32_t phloat)
+{
+ int32_t exp;
+ uint64_t man;
+
+ if (phloat >= 0x80000000) {
+ dev_err(&client->dev, "this is a negative number\n");
+ return 0;
+ }
+
+ if (phloat == 0x7f800000)
+ return ~0; /* Inf. */
+
+ if ((phloat & 0x7f800000) == 0x7f800000) {
+ dev_err(&client->dev, "NaN or other special number\n");
+ return 0;
+ }
+
+ /* Valid cases begin here */
+ if (phloat == 0)
+ return 0; /* Valid zero */
+
+ if (phloat > 0x4f800000)
+ return ~0; /* larger than 4294967295 */
+
+ /*
+ * Unbias exponent (note how phloat is now guaranteed to
+ * have 0 in the high bit)
+ */
+ exp = ((int32_t)phloat >> 23) - 127;
+
+ /* Extract mantissa, add missing '1' bit and it's in MHz */
+ man = ((phloat & 0x7fffff) | 0x800000) * 1000000ULL;
+
+ if (exp < 0)
+ man >>= -exp;
+ else
+ man <<= exp;
+
+ man >>= 23; /* Remove mantissa bias */
+
+ return man & 0xffffffff;
+}
+
+
+/*
+ * Read a 8/16/32-bit i2c register. The value is returned in 'val'.
+ * Returns zero if successful, or non-zero otherwise.
+ */
+static int ____ccs_read_addr(struct ccs_sensor *sensor, u16 reg, u16 len,
+ u32 *val)
+{
+ struct i2c_client *client = v4l2_get_subdevdata(&sensor->src->sd);
+ struct i2c_msg msg;
+ unsigned char data_buf[sizeof(u32)] = { 0 };
+ unsigned char offset_buf[sizeof(u16)];
+ int r;
+
+ if (len > sizeof(data_buf))
+ return -EINVAL;
+
+ msg.addr = client->addr;
+ msg.flags = 0;
+ msg.len = sizeof(offset_buf);
+ msg.buf = offset_buf;
+ put_unaligned_be16(reg, offset_buf);
+
+ r = i2c_transfer(client->adapter, &msg, 1);
+ if (r != 1) {
+ if (r >= 0)
+ r = -EBUSY;
+ goto err;
+ }
+
+ msg.len = len;
+ msg.flags = I2C_M_RD;
+ msg.buf = &data_buf[sizeof(data_buf) - len];
+
+ r = i2c_transfer(client->adapter, &msg, 1);
+ if (r != 1) {
+ if (r >= 0)
+ r = -EBUSY;
+ goto err;
+ }
+
+ *val = get_unaligned_be32(data_buf);
+
+ return 0;
+
+err:
+ dev_err(&client->dev, "read from offset 0x%x error %d\n", reg, r);
+
+ return r;
+}
+
+/* Read a register using 8-bit access only. */
+static int ____ccs_read_addr_8only(struct ccs_sensor *sensor, u16 reg,
+ u16 len, u32 *val)
+{
+ unsigned int i;
+ int rval;
+
+ *val = 0;
+
+ for (i = 0; i < len; i++) {
+ u32 val8;
+
+ rval = ____ccs_read_addr(sensor, reg + i, 1, &val8);
+ if (rval < 0)
+ return rval;
+ *val |= val8 << ((len - i - 1) << 3);
+ }
+
+ return 0;
+}
+
+unsigned int ccs_reg_width(u32 reg)
+{
+ if (reg & CCS_FL_16BIT)
+ return sizeof(uint16_t);
+ if (reg & CCS_FL_32BIT)
+ return sizeof(uint32_t);
+
+ return sizeof(uint8_t);
+}
+
+/*
+ * Read a 8/16/32-bit i2c register. The value is returned in 'val'.
+ * Returns zero if successful, or non-zero otherwise.
+ */
+static int __ccs_read_addr(struct ccs_sensor *sensor, u32 reg, u32 *val,
+ bool only8)
+{
+ struct i2c_client *client = v4l2_get_subdevdata(&sensor->src->sd);
+ unsigned int len = ccs_reg_width(reg);
+ int rval;
+
+ if (!only8)
+ rval = ____ccs_read_addr(sensor, CCS_REG_ADDR(reg), len, val);
+ else
+ rval = ____ccs_read_addr_8only(sensor, CCS_REG_ADDR(reg), len,
+ val);
+ if (rval < 0)
+ return rval;
+
+ if (reg & CCS_FL_FLOAT_IREAL)
+ *val = float_to_u32_mul_1000000(client, *val);
+
+ return 0;
+}
+
+int ccs_read_addr_no_quirk(struct ccs_sensor *sensor, u32 reg, u32 *val)
+{
+ return __ccs_read_addr(
+ sensor, reg, val,
+ ccs_needs_quirk(sensor, CCS_QUIRK_FLAG_8BIT_READ_ONLY));
+}
+
+static int ccs_read_addr_quirk(struct ccs_sensor *sensor, u32 reg, u32 *val,
+ bool force8)
+{
+ int rval;
+
+ *val = 0;
+ rval = ccs_call_quirk(sensor, reg_access, false, ®, val);
+ if (rval == -ENOIOCTLCMD)
+ return 0;
+ if (rval < 0)
+ return rval;
+
+ if (force8)
+ return __ccs_read_addr(sensor, reg, val, true);
+
+ return ccs_read_addr_no_quirk(sensor, reg, val);
+}
+
+int ccs_read_addr(struct ccs_sensor *sensor, u32 reg, u32 *val)
+{
+ return ccs_read_addr_quirk(sensor, reg, val, false);
+}
+
+int ccs_read_addr_8only(struct ccs_sensor *sensor, u32 reg, u32 *val)
+{
+ return ccs_read_addr_quirk(sensor, reg, val, true);
+}
+
+int ccs_write_addr_no_quirk(struct ccs_sensor *sensor, u32 reg, u32 val)
+{
+ struct i2c_client *client = v4l2_get_subdevdata(&sensor->src->sd);
+ struct i2c_msg msg;
+ unsigned char data[6];
+ unsigned int retries;
+ unsigned int len = ccs_reg_width(reg);
+ int r;
+
+ if (len > sizeof(data) - 2)
+ return -EINVAL;
+
+ msg.addr = client->addr;
+ msg.flags = 0; /* Write */
+ msg.len = 2 + len;
+ msg.buf = data;
+
+ put_unaligned_be16(CCS_REG_ADDR(reg), data);
+ put_unaligned_be32(val << (8 * (sizeof(val) - len)), data + 2);
+
+ for (retries = 0; retries < 5; retries++) {
+ /*
+ * Due to unknown reason sensor stops responding. This
+ * loop is a temporaty solution until the root cause
+ * is found.
+ */
+ r = i2c_transfer(client->adapter, &msg, 1);
+ if (r == 1) {
+ if (retries)
+ dev_err(&client->dev,
+ "sensor i2c stall encountered. retries: %d\n",
+ retries);
+ return 0;
+ }
+
+ usleep_range(2000, 2000);
+ }
+
+ dev_err(&client->dev,
+ "wrote 0x%x to offset 0x%x error %d\n", val,
+ CCS_REG_ADDR(reg), r);
+
+ return r;
+}
+
+/*
+ * Write to a 8/16-bit register.
+ * Returns zero if successful, or non-zero otherwise.
+ */
+int ccs_write_addr(struct ccs_sensor *sensor, u32 reg, u32 val)
+{
+ int rval;
+
+ rval = ccs_call_quirk(sensor, reg_access, true, ®, &val);
+ if (rval == -ENOIOCTLCMD)
+ return 0;
+ if (rval < 0)
+ return rval;
+
+ return ccs_write_addr_no_quirk(sensor, reg, val);
+}
--- /dev/null
+/* SPDX-License-Identifier: GPL-2.0-only */
+/*
+ * include/media/smiapp/ccs-regs.h
+ *
+ * Generic driver for SMIA/SMIA++ compliant camera modules
+ *
+ * Copyright (C) 2011--2012 Nokia Corporation
+ * Contact: Sakari Ailus <sakari.ailus@iki.fi>
+ */
+
+#ifndef SMIAPP_REGS_H
+#define SMIAPP_REGS_H
+
+#include <linux/i2c.h>
+#include <linux/types.h>
+
+#include "ccs-regs.h"
+
+#define CCS_REG_ADDR(reg) ((u16)reg)
+
+struct ccs_sensor;
+
+int ccs_read_addr_no_quirk(struct ccs_sensor *sensor, u32 reg, u32 *val);
+int ccs_read_addr(struct ccs_sensor *sensor, u32 reg, u32 *val);
+int ccs_read_addr_8only(struct ccs_sensor *sensor, u32 reg, u32 *val);
+int ccs_write_addr_no_quirk(struct ccs_sensor *sensor, u32 reg, u32 val);
+int ccs_write_addr(struct ccs_sensor *sensor, u32 reg, u32 val);
+
+unsigned int ccs_reg_width(u32 reg);
+
+#define ccs_read(sensor, reg_name, val) \
+ ccs_read_addr(sensor, CCS_R_##reg_name, val)
+
+#define ccs_write(sensor, reg_name, val) \
+ ccs_write_addr(sensor, CCS_R_##reg_name, val)
+
+#endif
--- /dev/null
+/* SPDX-License-Identifier: GPL-2.0-only */
+/*
+ * drivers/media/i2c/smiapp/ccs.h
+ *
+ * Generic driver for SMIA/SMIA++ compliant camera modules
+ *
+ * Copyright (C) 2010--2012 Nokia Corporation
+ * Contact: Sakari Ailus <sakari.ailus@iki.fi>
+ */
+
+#ifndef __CCS_H__
+#define __CCS_H__
+
+#include <linux/mutex.h>
+#include <media/v4l2-ctrls.h>
+#include <media/v4l2-subdev.h>
+
+#include "ccs-quirk.h"
+#include "ccs-regs.h"
+#include "ccs-reg-access.h"
+#include "../smiapp-pll.h"
+#include "smiapp-reg-defs.h"
+
+/*
+ * Standard SMIA++ constants
+ */
+#define SMIA_VERSION_1 10
+#define SMIAPP_VERSION_0_8 8 /* Draft 0.8 */
+#define SMIAPP_VERSION_0_9 9 /* Draft 0.9 */
+#define SMIAPP_VERSION_1 10
+
+#define SMIAPP_PROFILE_0 0
+#define SMIAPP_PROFILE_1 1
+#define SMIAPP_PROFILE_2 2
+
+#define SMIAPP_NVM_PAGE_SIZE 64 /* bytes */
+
+#define SMIAPP_RESET_DELAY_CLOCKS 2400
+#define SMIAPP_RESET_DELAY(clk) \
+ (1000 + (SMIAPP_RESET_DELAY_CLOCKS * 1000 \
+ + (clk) / 1000 - 1) / ((clk) / 1000))
+
+#define CCS_COLOUR_COMPONENTS 4
+
+#define SMIAPP_NAME "smiapp"
+#define CCS_NAME "ccs"
+
+#define CCS_DFL_I2C_ADDR (0x20 >> 1) /* Default I2C Address */
+#define CCS_ALT_I2C_ADDR (0x6e >> 1) /* Alternate I2C Address */
+
+/*
+ * Sometimes due to board layout considerations the camera module can be
+ * mounted rotated. The typical rotation used is 180 degrees which can be
+ * corrected by giving a default H-FLIP and V-FLIP in the sensor readout.
+ * FIXME: rotation also changes the bayer pattern.
+ */
+enum ccs_module_board_orient {
+ CCS_MODULE_BOARD_ORIENT_0 = 0,
+ CCS_MODULE_BOARD_ORIENT_180,
+};
+
+struct ccs_flash_strobe_parms {
+ u8 mode;
+ u32 strobe_width_high_us;
+ u16 strobe_delay;
+ u16 stobe_start_point;
+ u8 trigger;
+};
+
+struct ccs_hwconfig {
+ /*
+ * Change the cci address if i2c_addr_alt is set.
+ * Both default and alternate cci addr need to be present
+ */
+ unsigned short i2c_addr_dfl; /* Default i2c addr */
+ unsigned short i2c_addr_alt; /* Alternate i2c addr */
+
+ uint32_t ext_clk; /* sensor external clk */
+
+ unsigned int lanes; /* Number of CSI-2 lanes */
+ uint32_t csi_signalling_mode; /* CCS_CSI_SIGNALLING_MODE_* */
+ uint64_t *op_sys_clock;
+
+ enum ccs_module_board_orient module_board_orient;
+
+ struct ccs_flash_strobe_parms *strobe_setup;
+};
+
+struct ccs_quirk;
+
+#define CCS_MODULE_IDENT_FLAG_REV_LE (1 << 0)
+
+struct ccs_module_ident {
+ u16 mipi_manufacturer_id;
+ u16 model_id;
+ u8 smia_manufacturer_id;
+ u8 revision_number_major;
+
+ u8 flags;
+
+ char *name;
+ const struct ccs_quirk *quirk;
+};
+
+struct ccs_module_info {
+ u32 smia_manufacturer_id;
+ u32 mipi_manufacturer_id;
+ u32 model_id;
+ u32 revision_number_major;
+ u32 revision_number_minor;
+
+ u32 module_year;
+ u32 module_month;
+ u32 module_day;
+
+ u32 sensor_smia_manufacturer_id;
+ u32 sensor_mipi_manufacturer_id;
+ u32 sensor_model_id;
+ u32 sensor_revision_number;
+ u32 sensor_firmware_version;
+
+ u32 smia_version;
+ u32 smiapp_version;
+ u32 ccs_version;
+
+ u32 smiapp_profile;
+
+ char *name;
+ const struct ccs_quirk *quirk;
+};
+
+#define CCS_IDENT_FQ(manufacturer, model, rev, fl, _name, _quirk) \
+ { .smia_manufacturer_id = manufacturer, \
+ .model_id = model, \
+ .revision_number_major = rev, \
+ .flags = fl, \
+ .name = _name, \
+ .quirk = _quirk, }
+
+#define CCS_IDENT_LQ(manufacturer, model, rev, _name, _quirk) \
+ { .smia_manufacturer_id = manufacturer, \
+ .model_id = model, \
+ .revision_number_major = rev, \
+ .flags = CCS_MODULE_IDENT_FLAG_REV_LE, \
+ .name = _name, \
+ .quirk = _quirk, }
+
+#define CCS_IDENT_L(manufacturer, model, rev, _name) \
+ { .smia_manufacturer_id = manufacturer, \
+ .model_id = model, \
+ .revision_number_major = rev, \
+ .flags = CCS_MODULE_IDENT_FLAG_REV_LE, \
+ .name = _name, }
+
+#define CCS_IDENT_Q(manufacturer, model, rev, _name, _quirk) \
+ { .smia_manufacturer_id = manufacturer, \
+ .model_id = model, \
+ .revision_number_major = rev, \
+ .flags = 0, \
+ .name = _name, \
+ .quirk = _quirk, }
+
+#define CCS_IDENT(manufacturer, model, rev, _name) \
+ { .smia_manufacturer_id = manufacturer, \
+ .model_id = model, \
+ .revision_number_major = rev, \
+ .flags = 0, \
+ .name = _name, }
+
+struct ccs_csi_data_format {
+ u32 code;
+ u8 width;
+ u8 compressed;
+ u8 pixel_order;
+};
+
+#define CCS_SUBDEVS 3
+
+#define CCS_PA_PAD_SRC 0
+#define CCS_PAD_SINK 0
+#define CCS_PAD_SRC 1
+#define CCS_PADS 2
+
+struct ccs_binning_subtype {
+ u8 horizontal:4;
+ u8 vertical:4;
+} __packed;
+
+struct ccs_subdev {
+ struct v4l2_subdev sd;
+ struct media_pad pads[CCS_PADS];
+ struct v4l2_rect sink_fmt;
+ struct v4l2_rect crop[CCS_PADS];
+ struct v4l2_rect compose; /* compose on sink */
+ unsigned short sink_pad;
+ unsigned short source_pad;
+ int npads;
+ struct ccs_sensor *sensor;
+ struct v4l2_ctrl_handler ctrl_handler;
+};
+
+/*
+ * struct ccs_sensor - Main device structure
+ */
+struct ccs_sensor {
+ /*
+ * "mutex" is used to serialise access to all fields here
+ * except v4l2_ctrls at the end of the struct. "mutex" is also
+ * used to serialise access to file handle specific
+ * information.
+ */
+ struct mutex mutex;
+ struct ccs_subdev ssds[CCS_SUBDEVS];
+ u32 ssds_used;
+ struct ccs_subdev *src;
+ struct ccs_subdev *binner;
+ struct ccs_subdev *scaler;
+ struct ccs_subdev *pixel_array;
+ struct ccs_hwconfig *hwcfg;
+ struct regulator *vana;
+ struct clk *ext_clk;
+ struct gpio_desc *xshutdown;
+ void *ccs_limits;
+ u8 nbinning_subtypes;
+ struct ccs_binning_subtype binning_subtypes[CCS_LIM_BINNING_SUB_TYPE_MAX_N + 1];
+ u32 mbus_frame_fmts;
+ const struct ccs_csi_data_format *csi_format;
+ const struct ccs_csi_data_format *internal_csi_format;
+ u32 default_mbus_frame_fmts;
+ int default_pixel_order;
+
+ u8 binning_horizontal;
+ u8 binning_vertical;
+
+ u8 scale_m;
+ u8 scaling_mode;
+
+ u8 hvflip_inv_mask; /* H/VFLIP inversion due to sensor orientation */
+ u8 frame_skip;
+ u16 embedded_start; /* embedded data start line */
+ u16 embedded_end;
+ u16 image_start; /* image data start line */
+ u16 visible_pixel_start; /* start pixel of the visible image */
+
+ bool streaming;
+ bool dev_init_done;
+ u8 compressed_min_bpp;
+
+ struct ccs_module_info minfo;
+
+ struct smiapp_pll pll;
+
+ /* Is a default format supported for a given BPP? */
+ unsigned long *valid_link_freqs;
+
+ /* Pixel array controls */
+ struct v4l2_ctrl *analog_gain;
+ struct v4l2_ctrl *exposure;
+ struct v4l2_ctrl *hflip;
+ struct v4l2_ctrl *vflip;
+ struct v4l2_ctrl *vblank;
+ struct v4l2_ctrl *hblank;
+ struct v4l2_ctrl *pixel_rate_parray;
+ /* src controls */
+ struct v4l2_ctrl *link_freq;
+ struct v4l2_ctrl *pixel_rate_csi;
+ /* test pattern colour components */
+ struct v4l2_ctrl *test_data[CCS_COLOUR_COMPONENTS];
+};
+
+#define to_ccs_subdev(_sd) \
+ container_of(_sd, struct ccs_subdev, sd)
+
+#define to_ccs_sensor(_sd) \
+ (to_ccs_subdev(_sd)->sensor)
+
+void ccs_replace_limit(struct ccs_sensor *sensor,
+ unsigned int limit, unsigned int offset, u32 val);
+
+#endif /* __CCS_H__ */
+++ /dev/null
-// SPDX-License-Identifier: GPL-2.0-only
-/*
- * drivers/media/i2c/smiapp/smiapp-core.c
- *
- * Generic driver for SMIA/SMIA++ compliant camera modules
- *
- * Copyright (C) 2010--2012 Nokia Corporation
- * Contact: Sakari Ailus <sakari.ailus@iki.fi>
- *
- * Based on smiapp driver by Vimarsh Zutshi
- * Based on jt8ev1.c by Vimarsh Zutshi
- * Based on smia-sensor.c by Tuukka Toivonen <tuukkat76@gmail.com>
- */
-
-#include <linux/clk.h>
-#include <linux/delay.h>
-#include <linux/device.h>
-#include <linux/gpio.h>
-#include <linux/gpio/consumer.h>
-#include <linux/module.h>
-#include <linux/pm_runtime.h>
-#include <linux/property.h>
-#include <linux/regulator/consumer.h>
-#include <linux/slab.h>
-#include <linux/smiapp.h>
-#include <linux/v4l2-mediabus.h>
-#include <media/v4l2-fwnode.h>
-#include <media/v4l2-device.h>
-
-#include "ccs-limits.h"
-#include "smiapp.h"
-
-#define SMIAPP_ALIGN_DIM(dim, flags) \
- ((flags) & V4L2_SEL_FLAG_GE \
- ? ALIGN((dim), 2) \
- : (dim) & ~1)
-
-static struct ccs_limit_offset {
- u16 lim;
- u16 info;
-} ccs_limit_offsets[CCS_L_LAST + 1];
-
-/*
- * smiapp_module_idents - supported camera modules
- */
-static const struct smiapp_module_ident smiapp_module_idents[] = {
- SMIAPP_IDENT_L(0x01, 0x022b, -1, "vs6555"),
- SMIAPP_IDENT_L(0x01, 0x022e, -1, "vw6558"),
- SMIAPP_IDENT_L(0x07, 0x7698, -1, "ovm7698"),
- SMIAPP_IDENT_L(0x0b, 0x4242, -1, "smiapp-003"),
- SMIAPP_IDENT_L(0x0c, 0x208a, -1, "tcm8330md"),
- SMIAPP_IDENT_LQ(0x0c, 0x2134, -1, "tcm8500md", &smiapp_tcm8500md_quirk),
- SMIAPP_IDENT_L(0x0c, 0x213e, -1, "et8en2"),
- SMIAPP_IDENT_L(0x0c, 0x2184, -1, "tcm8580md"),
- SMIAPP_IDENT_LQ(0x0c, 0x560f, -1, "jt8ew9", &smiapp_jt8ew9_quirk),
- SMIAPP_IDENT_LQ(0x10, 0x4141, -1, "jt8ev1", &smiapp_jt8ev1_quirk),
- SMIAPP_IDENT_LQ(0x10, 0x4241, -1, "imx125es", &smiapp_imx125es_quirk),
-};
-
-/*
- *
- * Dynamic Capability Identification
- *
- */
-
-static void ccs_assign_limit(void *ptr, unsigned int width, u32 val)
-{
- switch (width) {
- case sizeof(u8):
- *(u8 *)ptr = val;
- break;
- case sizeof(u16):
- *(u16 *)ptr = val;
- break;
- case sizeof(u32):
- *(u32 *)ptr = val;
- break;
- }
-}
-
-static int ccs_limit_ptr(struct smiapp_sensor *sensor, unsigned int limit,
- unsigned int offset, void **__ptr)
-{
- const struct ccs_limit *linfo;
-
- if (WARN_ON(limit >= CCS_L_LAST))
- return -EINVAL;
-
- linfo = &ccs_limits[ccs_limit_offsets[limit].info];
-
- if (WARN_ON(!sensor->ccs_limits) ||
- WARN_ON(offset + ccs_reg_width(linfo->reg) >
- ccs_limit_offsets[limit + 1].lim))
- return -EINVAL;
-
- *__ptr = sensor->ccs_limits + ccs_limit_offsets[limit].lim + offset;
-
- return 0;
-}
-
-void ccs_replace_limit(struct smiapp_sensor *sensor,
- unsigned int limit, unsigned int offset, u32 val)
-{
- struct i2c_client *client = v4l2_get_subdevdata(&sensor->src->sd);
- const struct ccs_limit *linfo;
- void *ptr;
- int ret;
-
- ret = ccs_limit_ptr(sensor, limit, offset, &ptr);
- if (ret)
- return;
-
- linfo = &ccs_limits[ccs_limit_offsets[limit].info];
-
- dev_dbg(&client->dev, "quirk: 0x%8.8x \"%s\" %u = %d, 0x%x\n",
- linfo->reg, linfo->name, offset, val, val);
-
- ccs_assign_limit(ptr, ccs_reg_width(linfo->reg), val);
-}
-
-static u32 ccs_get_limit(struct smiapp_sensor *sensor,
- unsigned int limit, unsigned int offset)
-{
- void *ptr;
- int ret;
-
- ret = ccs_limit_ptr(sensor, limit, offset, &ptr);
- if (ret)
- return 0;
-
- switch (ccs_reg_width(ccs_limits[ccs_limit_offsets[limit].info].reg)) {
- case sizeof(u8):
- return *(u8 *)ptr;
- case sizeof(u16):
- return *(u16 *)ptr;
- case sizeof(u32):
- return *(u32 *)ptr;
- }
-
- WARN_ON(1);
-
- return 0;
-}
-
-#define CCS_LIM(sensor, limit) \
- ccs_get_limit(sensor, CCS_L_##limit, 0)
-
-#define CCS_LIM_AT(sensor, limit, offset) \
- ccs_get_limit(sensor, CCS_L_##limit, CCS_L_##limit##_OFFSET(offset))
-
-static int ccs_read_all_limits(struct smiapp_sensor *sensor)
-{
- struct i2c_client *client = v4l2_get_subdevdata(&sensor->src->sd);
- void *ptr, *alloc, *end;
- unsigned int i, l;
- int ret;
-
- kfree(sensor->ccs_limits);
- sensor->ccs_limits = NULL;
-
- alloc = kzalloc(ccs_limit_offsets[CCS_L_LAST].lim, GFP_KERNEL);
- if (!alloc)
- return -ENOMEM;
-
- end = alloc + ccs_limit_offsets[CCS_L_LAST].lim;
-
- for (i = 0, l = 0, ptr = alloc; ccs_limits[i].size; i++) {
- u32 reg = ccs_limits[i].reg;
- unsigned int width = ccs_reg_width(reg);
- unsigned int j;
-
- if (l == CCS_L_LAST) {
- dev_err(&client->dev,
- "internal error --- end of limit array\n");
- ret = -EINVAL;
- goto out_err;
- }
-
- for (j = 0; j < ccs_limits[i].size / width;
- j++, reg += width, ptr += width) {
- u32 val;
-
- ret = ccs_read_addr(sensor, reg, &val);
- if (ret)
- goto out_err;
-
- if (ptr + width > end) {
- dev_err(&client->dev,
- "internal error --- no room for regs\n");
- ret = -EINVAL;
- goto out_err;
- }
-
- ccs_assign_limit(ptr, width, val);
-
- dev_dbg(&client->dev, "0x%8.8x \"%s\" = %u, 0x%x\n",
- reg, ccs_limits[i].name, val, val);
- }
-
- if (ccs_limits[i].flags & CCS_L_FL_SAME_REG)
- continue;
-
- l++;
- ptr = alloc + ccs_limit_offsets[l].lim;
- }
-
- if (l != CCS_L_LAST) {
- dev_err(&client->dev,
- "internal error --- insufficient limits\n");
- ret = -EINVAL;
- goto out_err;
- }
-
- sensor->ccs_limits = alloc;
-
- if (CCS_LIM(sensor, SCALER_N_MIN) < 16)
- ccs_replace_limit(sensor, CCS_L_SCALER_N_MIN, 0, 16);
-
- return 0;
-
-out_err:
- kfree(alloc);
-
- return ret;
-}
-
-static int smiapp_read_frame_fmt(struct smiapp_sensor *sensor)
-{
- struct i2c_client *client = v4l2_get_subdevdata(&sensor->src->sd);
- u8 fmt_model_type, fmt_model_subtype, ncol_desc, nrow_desc;
- unsigned int i;
- int pixel_count = 0;
- int line_count = 0;
-
- fmt_model_type = CCS_LIM(sensor, FRAME_FORMAT_MODEL_TYPE);
- fmt_model_subtype = CCS_LIM(sensor, FRAME_FORMAT_MODEL_SUBTYPE);
-
- ncol_desc = (fmt_model_subtype
- & CCS_FRAME_FORMAT_MODEL_SUBTYPE_COLUMNS_MASK)
- >> CCS_FRAME_FORMAT_MODEL_SUBTYPE_COLUMNS_SHIFT;
- nrow_desc = fmt_model_subtype
- & CCS_FRAME_FORMAT_MODEL_SUBTYPE_ROWS_MASK;
-
- dev_dbg(&client->dev, "format_model_type %s\n",
- fmt_model_type == CCS_FRAME_FORMAT_MODEL_TYPE_2_BYTE
- ? "2 byte" :
- fmt_model_type == CCS_FRAME_FORMAT_MODEL_TYPE_4_BYTE
- ? "4 byte" : "is simply bad");
-
- dev_dbg(&client->dev, "%u column and %u row descriptors\n",
- ncol_desc, nrow_desc);
-
- for (i = 0; i < ncol_desc + nrow_desc; i++) {
- u32 desc;
- u32 pixelcode;
- u32 pixels;
- char *which;
- char *what;
- u32 reg;
-
- if (fmt_model_type == CCS_FRAME_FORMAT_MODEL_TYPE_2_BYTE) {
- desc = CCS_LIM_AT(sensor, FRAME_FORMAT_DESCRIPTOR, i);
-
- pixelcode =
- (desc
- & CCS_FRAME_FORMAT_DESCRIPTOR_PCODE_MASK)
- >> CCS_FRAME_FORMAT_DESCRIPTOR_PCODE_SHIFT;
- pixels = desc & CCS_FRAME_FORMAT_DESCRIPTOR_PIXELS_MASK;
- } else if (fmt_model_type
- == CCS_FRAME_FORMAT_MODEL_TYPE_4_BYTE) {
- desc = CCS_LIM_AT(sensor, FRAME_FORMAT_DESCRIPTOR_4, i);
-
- pixelcode =
- (desc
- & CCS_FRAME_FORMAT_DESCRIPTOR_4_PCODE_MASK)
- >> CCS_FRAME_FORMAT_DESCRIPTOR_4_PCODE_SHIFT;
- pixels = desc &
- CCS_FRAME_FORMAT_DESCRIPTOR_4_PIXELS_MASK;
- } else {
- dev_dbg(&client->dev,
- "invalid frame format model type %d\n",
- fmt_model_type);
- return -EINVAL;
- }
-
- if (i < ncol_desc)
- which = "columns";
- else
- which = "rows";
-
- switch (pixelcode) {
- case CCS_FRAME_FORMAT_DESCRIPTOR_PCODE_EMBEDDED:
- what = "embedded";
- break;
- case CCS_FRAME_FORMAT_DESCRIPTOR_PCODE_DUMMY_PIXEL:
- what = "dummy";
- break;
- case CCS_FRAME_FORMAT_DESCRIPTOR_PCODE_BLACK_PIXEL:
- what = "black";
- break;
- case CCS_FRAME_FORMAT_DESCRIPTOR_PCODE_DARK_PIXEL:
- what = "dark";
- break;
- case CCS_FRAME_FORMAT_DESCRIPTOR_PCODE_VISIBLE_PIXEL:
- what = "visible";
- break;
- default:
- what = "invalid";
- break;
- }
-
- dev_dbg(&client->dev,
- "0x%8.8x %s pixels: %d %s (pixelcode %u)\n", reg,
- what, pixels, which, pixelcode);
-
- if (i < ncol_desc) {
- if (pixelcode ==
- CCS_FRAME_FORMAT_DESCRIPTOR_PCODE_VISIBLE_PIXEL)
- sensor->visible_pixel_start = pixel_count;
- pixel_count += pixels;
- continue;
- }
-
- /* Handle row descriptors */
- switch (pixelcode) {
- case CCS_FRAME_FORMAT_DESCRIPTOR_PCODE_EMBEDDED:
- if (sensor->embedded_end)
- break;
- sensor->embedded_start = line_count;
- sensor->embedded_end = line_count + pixels;
- break;
- case CCS_FRAME_FORMAT_DESCRIPTOR_PCODE_VISIBLE_PIXEL:
- sensor->image_start = line_count;
- break;
- }
- line_count += pixels;
- }
-
- if (sensor->embedded_end > sensor->image_start) {
- dev_dbg(&client->dev,
- "adjusting image start line to %u (was %u)\n",
- sensor->embedded_end, sensor->image_start);
- sensor->image_start = sensor->embedded_end;
- }
-
- dev_dbg(&client->dev, "embedded data from lines %d to %d\n",
- sensor->embedded_start, sensor->embedded_end);
- dev_dbg(&client->dev, "image data starts at line %d\n",
- sensor->image_start);
-
- return 0;
-}
-
-static int smiapp_pll_configure(struct smiapp_sensor *sensor)
-{
- struct smiapp_pll *pll = &sensor->pll;
- int rval;
-
- rval = ccs_write(sensor, VT_PIX_CLK_DIV, pll->vt.pix_clk_div);
- if (rval < 0)
- return rval;
-
- rval = ccs_write(sensor, VT_SYS_CLK_DIV, pll->vt.sys_clk_div);
- if (rval < 0)
- return rval;
-
- rval = ccs_write(sensor, PRE_PLL_CLK_DIV, pll->pre_pll_clk_div);
- if (rval < 0)
- return rval;
-
- rval = ccs_write(sensor, PLL_MULTIPLIER, pll->pll_multiplier);
- if (rval < 0)
- return rval;
-
- /* Lane op clock ratio does not apply here. */
- rval = ccs_write(sensor, REQUESTED_LINK_RATE,
- DIV_ROUND_UP(pll->op.sys_clk_freq_hz,
- 1000000 / 256 / 256));
- if (rval < 0 || sensor->minfo.smiapp_profile == SMIAPP_PROFILE_0)
- return rval;
-
- rval = ccs_write(sensor, OP_PIX_CLK_DIV, pll->op.pix_clk_div);
- if (rval < 0)
- return rval;
-
- return ccs_write(sensor, OP_SYS_CLK_DIV, pll->op.sys_clk_div);
-}
-
-static int smiapp_pll_try(struct smiapp_sensor *sensor,
- struct smiapp_pll *pll)
-{
- struct i2c_client *client = v4l2_get_subdevdata(&sensor->src->sd);
- struct smiapp_pll_limits lim = {
- .min_pre_pll_clk_div = CCS_LIM(sensor, MIN_PRE_PLL_CLK_DIV),
- .max_pre_pll_clk_div = CCS_LIM(sensor, MAX_PRE_PLL_CLK_DIV),
- .min_pll_ip_freq_hz = CCS_LIM(sensor, MIN_PLL_IP_CLK_FREQ_MHZ),
- .max_pll_ip_freq_hz = CCS_LIM(sensor, MAX_PLL_IP_CLK_FREQ_MHZ),
- .min_pll_multiplier = CCS_LIM(sensor, MIN_PLL_MULTIPLIER),
- .max_pll_multiplier = CCS_LIM(sensor, MAX_PLL_MULTIPLIER),
- .min_pll_op_freq_hz = CCS_LIM(sensor, MIN_PLL_OP_CLK_FREQ_MHZ),
- .max_pll_op_freq_hz = CCS_LIM(sensor, MAX_PLL_OP_CLK_FREQ_MHZ),
-
- .op.min_sys_clk_div = CCS_LIM(sensor, MIN_OP_SYS_CLK_DIV),
- .op.max_sys_clk_div = CCS_LIM(sensor, MAX_OP_SYS_CLK_DIV),
- .op.min_pix_clk_div = CCS_LIM(sensor, MIN_OP_PIX_CLK_DIV),
- .op.max_pix_clk_div = CCS_LIM(sensor, MAX_OP_PIX_CLK_DIV),
- .op.min_sys_clk_freq_hz = CCS_LIM(sensor, MIN_OP_SYS_CLK_FREQ_MHZ),
- .op.max_sys_clk_freq_hz = CCS_LIM(sensor, MAX_OP_SYS_CLK_FREQ_MHZ),
- .op.min_pix_clk_freq_hz = CCS_LIM(sensor, MIN_OP_PIX_CLK_FREQ_MHZ),
- .op.max_pix_clk_freq_hz = CCS_LIM(sensor, MAX_OP_PIX_CLK_FREQ_MHZ),
-
- .vt.min_sys_clk_div = CCS_LIM(sensor, MIN_VT_SYS_CLK_DIV),
- .vt.max_sys_clk_div = CCS_LIM(sensor, MAX_VT_SYS_CLK_DIV),
- .vt.min_pix_clk_div = CCS_LIM(sensor, MIN_VT_PIX_CLK_DIV),
- .vt.max_pix_clk_div = CCS_LIM(sensor, MAX_VT_PIX_CLK_DIV),
- .vt.min_sys_clk_freq_hz = CCS_LIM(sensor, MIN_VT_SYS_CLK_FREQ_MHZ),
- .vt.max_sys_clk_freq_hz = CCS_LIM(sensor, MAX_VT_SYS_CLK_FREQ_MHZ),
- .vt.min_pix_clk_freq_hz = CCS_LIM(sensor, MIN_VT_PIX_CLK_FREQ_MHZ),
- .vt.max_pix_clk_freq_hz = CCS_LIM(sensor, MAX_VT_PIX_CLK_FREQ_MHZ),
-
- .min_line_length_pck_bin = CCS_LIM(sensor, MIN_LINE_LENGTH_PCK_BIN),
- .min_line_length_pck = CCS_LIM(sensor, MIN_LINE_LENGTH_PCK),
- };
-
- return smiapp_pll_calculate(&client->dev, &lim, pll);
-}
-
-static int smiapp_pll_update(struct smiapp_sensor *sensor)
-{
- struct smiapp_pll *pll = &sensor->pll;
- int rval;
-
- pll->binning_horizontal = sensor->binning_horizontal;
- pll->binning_vertical = sensor->binning_vertical;
- pll->link_freq =
- sensor->link_freq->qmenu_int[sensor->link_freq->val];
- pll->scale_m = sensor->scale_m;
- pll->bits_per_pixel = sensor->csi_format->compressed;
-
- rval = smiapp_pll_try(sensor, pll);
- if (rval < 0)
- return rval;
-
- __v4l2_ctrl_s_ctrl_int64(sensor->pixel_rate_parray,
- pll->pixel_rate_pixel_array);
- __v4l2_ctrl_s_ctrl_int64(sensor->pixel_rate_csi, pll->pixel_rate_csi);
-
- return 0;
-}
-
-
-/*
- *
- * V4L2 Controls handling
- *
- */
-
-static void __smiapp_update_exposure_limits(struct smiapp_sensor *sensor)
-{
- struct v4l2_ctrl *ctrl = sensor->exposure;
- int max;
-
- max = sensor->pixel_array->crop[SMIAPP_PA_PAD_SRC].height
- + sensor->vblank->val
- - CCS_LIM(sensor, COARSE_INTEGRATION_TIME_MAX_MARGIN);
-
- __v4l2_ctrl_modify_range(ctrl, ctrl->minimum, max, ctrl->step, max);
-}
-
-/*
- * Order matters.
- *
- * 1. Bits-per-pixel, descending.
- * 2. Bits-per-pixel compressed, descending.
- * 3. Pixel order, same as in pixel_order_str. Formats for all four pixel
- * orders must be defined.
- */
-static const struct smiapp_csi_data_format smiapp_csi_data_formats[] = {
- { MEDIA_BUS_FMT_SGRBG16_1X16, 16, 16, SMIAPP_PIXEL_ORDER_GRBG, },
- { MEDIA_BUS_FMT_SRGGB16_1X16, 16, 16, SMIAPP_PIXEL_ORDER_RGGB, },
- { MEDIA_BUS_FMT_SBGGR16_1X16, 16, 16, SMIAPP_PIXEL_ORDER_BGGR, },
- { MEDIA_BUS_FMT_SGBRG16_1X16, 16, 16, SMIAPP_PIXEL_ORDER_GBRG, },
- { MEDIA_BUS_FMT_SGRBG14_1X14, 14, 14, SMIAPP_PIXEL_ORDER_GRBG, },
- { MEDIA_BUS_FMT_SRGGB14_1X14, 14, 14, SMIAPP_PIXEL_ORDER_RGGB, },
- { MEDIA_BUS_FMT_SBGGR14_1X14, 14, 14, SMIAPP_PIXEL_ORDER_BGGR, },
- { MEDIA_BUS_FMT_SGBRG14_1X14, 14, 14, SMIAPP_PIXEL_ORDER_GBRG, },
- { MEDIA_BUS_FMT_SGRBG12_1X12, 12, 12, SMIAPP_PIXEL_ORDER_GRBG, },
- { MEDIA_BUS_FMT_SRGGB12_1X12, 12, 12, SMIAPP_PIXEL_ORDER_RGGB, },
- { MEDIA_BUS_FMT_SBGGR12_1X12, 12, 12, SMIAPP_PIXEL_ORDER_BGGR, },
- { MEDIA_BUS_FMT_SGBRG12_1X12, 12, 12, SMIAPP_PIXEL_ORDER_GBRG, },
- { MEDIA_BUS_FMT_SGRBG10_1X10, 10, 10, SMIAPP_PIXEL_ORDER_GRBG, },
- { MEDIA_BUS_FMT_SRGGB10_1X10, 10, 10, SMIAPP_PIXEL_ORDER_RGGB, },
- { MEDIA_BUS_FMT_SBGGR10_1X10, 10, 10, SMIAPP_PIXEL_ORDER_BGGR, },
- { MEDIA_BUS_FMT_SGBRG10_1X10, 10, 10, SMIAPP_PIXEL_ORDER_GBRG, },
- { MEDIA_BUS_FMT_SGRBG10_DPCM8_1X8, 10, 8, SMIAPP_PIXEL_ORDER_GRBG, },
- { MEDIA_BUS_FMT_SRGGB10_DPCM8_1X8, 10, 8, SMIAPP_PIXEL_ORDER_RGGB, },
- { MEDIA_BUS_FMT_SBGGR10_DPCM8_1X8, 10, 8, SMIAPP_PIXEL_ORDER_BGGR, },
- { MEDIA_BUS_FMT_SGBRG10_DPCM8_1X8, 10, 8, SMIAPP_PIXEL_ORDER_GBRG, },
- { MEDIA_BUS_FMT_SGRBG8_1X8, 8, 8, SMIAPP_PIXEL_ORDER_GRBG, },
- { MEDIA_BUS_FMT_SRGGB8_1X8, 8, 8, SMIAPP_PIXEL_ORDER_RGGB, },
- { MEDIA_BUS_FMT_SBGGR8_1X8, 8, 8, SMIAPP_PIXEL_ORDER_BGGR, },
- { MEDIA_BUS_FMT_SGBRG8_1X8, 8, 8, SMIAPP_PIXEL_ORDER_GBRG, },
-};
-
-static const char *pixel_order_str[] = { "GRBG", "RGGB", "BGGR", "GBRG" };
-
-#define to_csi_format_idx(fmt) (((unsigned long)(fmt) \
- - (unsigned long)smiapp_csi_data_formats) \
- / sizeof(*smiapp_csi_data_formats))
-
-static u32 smiapp_pixel_order(struct smiapp_sensor *sensor)
-{
- struct i2c_client *client = v4l2_get_subdevdata(&sensor->src->sd);
- int flip = 0;
-
- if (sensor->hflip) {
- if (sensor->hflip->val)
- flip |= CCS_IMAGE_ORIENTATION_HORIZONTAL_MIRROR;
-
- if (sensor->vflip->val)
- flip |= CCS_IMAGE_ORIENTATION_VERTICAL_FLIP;
- }
-
- flip ^= sensor->hvflip_inv_mask;
-
- dev_dbg(&client->dev, "flip %d\n", flip);
- return sensor->default_pixel_order ^ flip;
-}
-
-static void smiapp_update_mbus_formats(struct smiapp_sensor *sensor)
-{
- struct i2c_client *client = v4l2_get_subdevdata(&sensor->src->sd);
- unsigned int csi_format_idx =
- to_csi_format_idx(sensor->csi_format) & ~3;
- unsigned int internal_csi_format_idx =
- to_csi_format_idx(sensor->internal_csi_format) & ~3;
- unsigned int pixel_order = smiapp_pixel_order(sensor);
-
- sensor->mbus_frame_fmts =
- sensor->default_mbus_frame_fmts << pixel_order;
- sensor->csi_format =
- &smiapp_csi_data_formats[csi_format_idx + pixel_order];
- sensor->internal_csi_format =
- &smiapp_csi_data_formats[internal_csi_format_idx
- + pixel_order];
-
- BUG_ON(max(internal_csi_format_idx, csi_format_idx) + pixel_order
- >= ARRAY_SIZE(smiapp_csi_data_formats));
-
- dev_dbg(&client->dev, "new pixel order %s\n",
- pixel_order_str[pixel_order]);
-}
-
-static const char * const smiapp_test_patterns[] = {
- "Disabled",
- "Solid Colour",
- "Eight Vertical Colour Bars",
- "Colour Bars With Fade to Grey",
- "Pseudorandom Sequence (PN9)",
-};
-
-static int smiapp_set_ctrl(struct v4l2_ctrl *ctrl)
-{
- struct smiapp_sensor *sensor =
- container_of(ctrl->handler, struct smiapp_subdev, ctrl_handler)
- ->sensor;
- struct i2c_client *client = v4l2_get_subdevdata(&sensor->src->sd);
- int pm_status;
- u32 orient = 0;
- unsigned int i;
- int exposure;
- int rval;
-
- switch (ctrl->id) {
- case V4L2_CID_HFLIP:
- case V4L2_CID_VFLIP:
- if (sensor->streaming)
- return -EBUSY;
-
- if (sensor->hflip->val)
- orient |= CCS_IMAGE_ORIENTATION_HORIZONTAL_MIRROR;
-
- if (sensor->vflip->val)
- orient |= CCS_IMAGE_ORIENTATION_VERTICAL_FLIP;
-
- orient ^= sensor->hvflip_inv_mask;
-
- smiapp_update_mbus_formats(sensor);
-
- break;
- case V4L2_CID_VBLANK:
- exposure = sensor->exposure->val;
-
- __smiapp_update_exposure_limits(sensor);
-
- if (exposure > sensor->exposure->maximum) {
- sensor->exposure->val = sensor->exposure->maximum;
- rval = smiapp_set_ctrl(sensor->exposure);
- if (rval < 0)
- return rval;
- }
-
- break;
- case V4L2_CID_LINK_FREQ:
- if (sensor->streaming)
- return -EBUSY;
-
- rval = smiapp_pll_update(sensor);
- if (rval)
- return rval;
-
- return 0;
- case V4L2_CID_TEST_PATTERN:
- for (i = 0; i < ARRAY_SIZE(sensor->test_data); i++)
- v4l2_ctrl_activate(
- sensor->test_data[i],
- ctrl->val ==
- V4L2_SMIAPP_TEST_PATTERN_MODE_SOLID_COLOUR);
-
- break;
- }
-
- pm_status = pm_runtime_get_if_active(&client->dev, true);
- if (!pm_status)
- return 0;
-
- switch (ctrl->id) {
- case V4L2_CID_ANALOGUE_GAIN:
- rval = ccs_write(sensor, ANALOG_GAIN_CODE_GLOBAL, ctrl->val);
-
- break;
- case V4L2_CID_EXPOSURE:
- rval = ccs_write(sensor, COARSE_INTEGRATION_TIME, ctrl->val);
-
- break;
- case V4L2_CID_HFLIP:
- case V4L2_CID_VFLIP:
- rval = ccs_write(sensor, IMAGE_ORIENTATION, orient);
-
- break;
- case V4L2_CID_VBLANK:
- rval = ccs_write(sensor, FRAME_LENGTH_LINES,
- sensor->pixel_array->crop[
- SMIAPP_PA_PAD_SRC].height
- + ctrl->val);
-
- break;
- case V4L2_CID_HBLANK:
- rval = ccs_write(sensor, LINE_LENGTH_PCK,
- sensor->pixel_array->crop[
- SMIAPP_PA_PAD_SRC].width
- + ctrl->val);
-
- break;
- case V4L2_CID_TEST_PATTERN:
- rval = ccs_write(sensor, TEST_PATTERN_MODE, ctrl->val);
-
- break;
- case V4L2_CID_TEST_PATTERN_RED:
- rval = ccs_write(sensor, TEST_DATA_RED, ctrl->val);
-
- break;
- case V4L2_CID_TEST_PATTERN_GREENR:
- rval = ccs_write(sensor, TEST_DATA_GREENR, ctrl->val);
-
- break;
- case V4L2_CID_TEST_PATTERN_BLUE:
- rval = ccs_write(sensor, TEST_DATA_BLUE, ctrl->val);
-
- break;
- case V4L2_CID_TEST_PATTERN_GREENB:
- rval = ccs_write(sensor, TEST_DATA_GREENB, ctrl->val);
-
- break;
- case V4L2_CID_PIXEL_RATE:
- /* For v4l2_ctrl_s_ctrl_int64() used internally. */
- rval = 0;
-
- break;
- default:
- rval = -EINVAL;
- }
-
- if (pm_status > 0) {
- pm_runtime_mark_last_busy(&client->dev);
- pm_runtime_put_autosuspend(&client->dev);
- }
-
- return rval;
-}
-
-static const struct v4l2_ctrl_ops smiapp_ctrl_ops = {
- .s_ctrl = smiapp_set_ctrl,
-};
-
-static int smiapp_init_controls(struct smiapp_sensor *sensor)
-{
- struct i2c_client *client = v4l2_get_subdevdata(&sensor->src->sd);
- int rval;
-
- rval = v4l2_ctrl_handler_init(&sensor->pixel_array->ctrl_handler, 12);
- if (rval)
- return rval;
-
- sensor->pixel_array->ctrl_handler.lock = &sensor->mutex;
-
- sensor->analog_gain = v4l2_ctrl_new_std(
- &sensor->pixel_array->ctrl_handler, &smiapp_ctrl_ops,
- V4L2_CID_ANALOGUE_GAIN,
- CCS_LIM(sensor, ANALOG_GAIN_CODE_MIN),
- CCS_LIM(sensor, ANALOG_GAIN_CODE_MAX),
- max(CCS_LIM(sensor, ANALOG_GAIN_CODE_STEP), 1U),
- CCS_LIM(sensor, ANALOG_GAIN_CODE_MIN));
-
- /* Exposure limits will be updated soon, use just something here. */
- sensor->exposure = v4l2_ctrl_new_std(
- &sensor->pixel_array->ctrl_handler, &smiapp_ctrl_ops,
- V4L2_CID_EXPOSURE, 0, 0, 1, 0);
-
- sensor->hflip = v4l2_ctrl_new_std(
- &sensor->pixel_array->ctrl_handler, &smiapp_ctrl_ops,
- V4L2_CID_HFLIP, 0, 1, 1, 0);
- sensor->vflip = v4l2_ctrl_new_std(
- &sensor->pixel_array->ctrl_handler, &smiapp_ctrl_ops,
- V4L2_CID_VFLIP, 0, 1, 1, 0);
-
- sensor->vblank = v4l2_ctrl_new_std(
- &sensor->pixel_array->ctrl_handler, &smiapp_ctrl_ops,
- V4L2_CID_VBLANK, 0, 1, 1, 0);
-
- if (sensor->vblank)
- sensor->vblank->flags |= V4L2_CTRL_FLAG_UPDATE;
-
- sensor->hblank = v4l2_ctrl_new_std(
- &sensor->pixel_array->ctrl_handler, &smiapp_ctrl_ops,
- V4L2_CID_HBLANK, 0, 1, 1, 0);
-
- if (sensor->hblank)
- sensor->hblank->flags |= V4L2_CTRL_FLAG_UPDATE;
-
- sensor->pixel_rate_parray = v4l2_ctrl_new_std(
- &sensor->pixel_array->ctrl_handler, &smiapp_ctrl_ops,
- V4L2_CID_PIXEL_RATE, 1, INT_MAX, 1, 1);
-
- v4l2_ctrl_new_std_menu_items(&sensor->pixel_array->ctrl_handler,
- &smiapp_ctrl_ops, V4L2_CID_TEST_PATTERN,
- ARRAY_SIZE(smiapp_test_patterns) - 1,
- 0, 0, smiapp_test_patterns);
-
- if (sensor->pixel_array->ctrl_handler.error) {
- dev_err(&client->dev,
- "pixel array controls initialization failed (%d)\n",
- sensor->pixel_array->ctrl_handler.error);
- return sensor->pixel_array->ctrl_handler.error;
- }
-
- sensor->pixel_array->sd.ctrl_handler =
- &sensor->pixel_array->ctrl_handler;
-
- v4l2_ctrl_cluster(2, &sensor->hflip);
-
- rval = v4l2_ctrl_handler_init(&sensor->src->ctrl_handler, 0);
- if (rval)
- return rval;
-
- sensor->src->ctrl_handler.lock = &sensor->mutex;
-
- sensor->pixel_rate_csi = v4l2_ctrl_new_std(
- &sensor->src->ctrl_handler, &smiapp_ctrl_ops,
- V4L2_CID_PIXEL_RATE, 1, INT_MAX, 1, 1);
-
- if (sensor->src->ctrl_handler.error) {
- dev_err(&client->dev,
- "src controls initialization failed (%d)\n",
- sensor->src->ctrl_handler.error);
- return sensor->src->ctrl_handler.error;
- }
-
- sensor->src->sd.ctrl_handler = &sensor->src->ctrl_handler;
-
- return 0;
-}
-
-/*
- * For controls that require information on available media bus codes
- * and linke frequencies.
- */
-static int smiapp_init_late_controls(struct smiapp_sensor *sensor)
-{
- unsigned long *valid_link_freqs = &sensor->valid_link_freqs[
- sensor->csi_format->compressed - sensor->compressed_min_bpp];
- unsigned int i;
-
- for (i = 0; i < ARRAY_SIZE(sensor->test_data); i++) {
- int max_value = (1 << sensor->csi_format->width) - 1;
-
- sensor->test_data[i] = v4l2_ctrl_new_std(
- &sensor->pixel_array->ctrl_handler,
- &smiapp_ctrl_ops, V4L2_CID_TEST_PATTERN_RED + i,
- 0, max_value, 1, max_value);
- }
-
- sensor->link_freq = v4l2_ctrl_new_int_menu(
- &sensor->src->ctrl_handler, &smiapp_ctrl_ops,
- V4L2_CID_LINK_FREQ, __fls(*valid_link_freqs),
- __ffs(*valid_link_freqs), sensor->hwcfg->op_sys_clock);
-
- return sensor->src->ctrl_handler.error;
-}
-
-static void smiapp_free_controls(struct smiapp_sensor *sensor)
-{
- unsigned int i;
-
- for (i = 0; i < sensor->ssds_used; i++)
- v4l2_ctrl_handler_free(&sensor->ssds[i].ctrl_handler);
-}
-
-static int smiapp_get_mbus_formats(struct smiapp_sensor *sensor)
-{
- struct i2c_client *client = v4l2_get_subdevdata(&sensor->src->sd);
- struct smiapp_pll *pll = &sensor->pll;
- u8 compressed_max_bpp = 0;
- unsigned int type, n;
- unsigned int i, pixel_order;
- int rval;
-
- type = CCS_LIM(sensor, DATA_FORMAT_MODEL_TYPE);
-
- dev_dbg(&client->dev, "data_format_model_type %d\n", type);
-
- rval = ccs_read(sensor, PIXEL_ORDER, &pixel_order);
- if (rval)
- return rval;
-
- if (pixel_order >= ARRAY_SIZE(pixel_order_str)) {
- dev_dbg(&client->dev, "bad pixel order %d\n", pixel_order);
- return -EINVAL;
- }
-
- dev_dbg(&client->dev, "pixel order %d (%s)\n", pixel_order,
- pixel_order_str[pixel_order]);
-
- switch (type) {
- case CCS_DATA_FORMAT_MODEL_TYPE_NORMAL:
- n = SMIAPP_DATA_FORMAT_MODEL_TYPE_NORMAL_N;
- break;
- case CCS_DATA_FORMAT_MODEL_TYPE_EXTENDED:
- n = CCS_LIM_DATA_FORMAT_DESCRIPTOR_MAX_N + 1;
- break;
- default:
- return -EINVAL;
- }
-
- sensor->default_pixel_order = pixel_order;
- sensor->mbus_frame_fmts = 0;
-
- for (i = 0; i < n; i++) {
- unsigned int fmt, j;
-
- fmt = CCS_LIM_AT(sensor, DATA_FORMAT_DESCRIPTOR, i);
-
- dev_dbg(&client->dev, "%u: bpp %u, compressed %u\n",
- i, fmt >> 8, (u8)fmt);
-
- for (j = 0; j < ARRAY_SIZE(smiapp_csi_data_formats); j++) {
- const struct smiapp_csi_data_format *f =
- &smiapp_csi_data_formats[j];
-
- if (f->pixel_order != SMIAPP_PIXEL_ORDER_GRBG)
- continue;
-
- if (f->width != fmt >>
- CCS_DATA_FORMAT_DESCRIPTOR_UNCOMPRESSED_SHIFT ||
- f->compressed !=
- (fmt & CCS_DATA_FORMAT_DESCRIPTOR_COMPRESSED_MASK))
- continue;
-
- dev_dbg(&client->dev, "jolly good! %d\n", j);
-
- sensor->default_mbus_frame_fmts |= 1 << j;
- }
- }
-
- /* Figure out which BPP values can be used with which formats. */
- pll->binning_horizontal = 1;
- pll->binning_vertical = 1;
- pll->scale_m = sensor->scale_m;
-
- for (i = 0; i < ARRAY_SIZE(smiapp_csi_data_formats); i++) {
- sensor->compressed_min_bpp =
- min(smiapp_csi_data_formats[i].compressed,
- sensor->compressed_min_bpp);
- compressed_max_bpp =
- max(smiapp_csi_data_formats[i].compressed,
- compressed_max_bpp);
- }
-
- sensor->valid_link_freqs = devm_kcalloc(
- &client->dev,
- compressed_max_bpp - sensor->compressed_min_bpp + 1,
- sizeof(*sensor->valid_link_freqs), GFP_KERNEL);
- if (!sensor->valid_link_freqs)
- return -ENOMEM;
-
- for (i = 0; i < ARRAY_SIZE(smiapp_csi_data_formats); i++) {
- const struct smiapp_csi_data_format *f =
- &smiapp_csi_data_formats[i];
- unsigned long *valid_link_freqs =
- &sensor->valid_link_freqs[
- f->compressed - sensor->compressed_min_bpp];
- unsigned int j;
-
- if (!(sensor->default_mbus_frame_fmts & 1 << i))
- continue;
-
- pll->bits_per_pixel = f->compressed;
-
- for (j = 0; sensor->hwcfg->op_sys_clock[j]; j++) {
- pll->link_freq = sensor->hwcfg->op_sys_clock[j];
-
- rval = smiapp_pll_try(sensor, pll);
- dev_dbg(&client->dev, "link freq %u Hz, bpp %u %s\n",
- pll->link_freq, pll->bits_per_pixel,
- rval ? "not ok" : "ok");
- if (rval)
- continue;
-
- set_bit(j, valid_link_freqs);
- }
-
- if (!*valid_link_freqs) {
- dev_info(&client->dev,
- "no valid link frequencies for %u bpp\n",
- f->compressed);
- sensor->default_mbus_frame_fmts &= ~BIT(i);
- continue;
- }
-
- if (!sensor->csi_format
- || f->width > sensor->csi_format->width
- || (f->width == sensor->csi_format->width
- && f->compressed > sensor->csi_format->compressed)) {
- sensor->csi_format = f;
- sensor->internal_csi_format = f;
- }
- }
-
- if (!sensor->csi_format) {
- dev_err(&client->dev, "no supported mbus code found\n");
- return -EINVAL;
- }
-
- smiapp_update_mbus_formats(sensor);
-
- return 0;
-}
-
-static void smiapp_update_blanking(struct smiapp_sensor *sensor)
-{
- struct v4l2_ctrl *vblank = sensor->vblank;
- struct v4l2_ctrl *hblank = sensor->hblank;
- uint16_t min_fll, max_fll, min_llp, max_llp, min_lbp;
- int min, max;
-
- if (sensor->binning_vertical > 1 || sensor->binning_horizontal > 1) {
- min_fll = CCS_LIM(sensor, MIN_FRAME_LENGTH_LINES_BIN);
- max_fll = CCS_LIM(sensor, MAX_FRAME_LENGTH_LINES_BIN);
- min_llp = CCS_LIM(sensor, MIN_LINE_LENGTH_PCK_BIN);
- max_llp = CCS_LIM(sensor, MAX_LINE_LENGTH_PCK_BIN);
- min_lbp = CCS_LIM(sensor, MIN_LINE_BLANKING_PCK_BIN);
- } else {
- min_fll = CCS_LIM(sensor, MIN_FRAME_LENGTH_LINES);
- max_fll = CCS_LIM(sensor, MAX_FRAME_LENGTH_LINES);
- min_llp = CCS_LIM(sensor, MIN_LINE_LENGTH_PCK);
- max_llp = CCS_LIM(sensor, MAX_LINE_LENGTH_PCK);
- min_lbp = CCS_LIM(sensor, MIN_LINE_BLANKING_PCK);
- }
-
- min = max_t(int,
- CCS_LIM(sensor, MIN_FRAME_BLANKING_LINES),
- min_fll -
- sensor->pixel_array->crop[SMIAPP_PA_PAD_SRC].height);
- max = max_fll - sensor->pixel_array->crop[SMIAPP_PA_PAD_SRC].height;
-
- __v4l2_ctrl_modify_range(vblank, min, max, vblank->step, min);
-
- min = max_t(int,
- min_llp -
- sensor->pixel_array->crop[SMIAPP_PA_PAD_SRC].width,
- min_lbp);
- max = max_llp - sensor->pixel_array->crop[SMIAPP_PA_PAD_SRC].width;
-
- __v4l2_ctrl_modify_range(hblank, min, max, hblank->step, min);
-
- __smiapp_update_exposure_limits(sensor);
-}
-
-static int smiapp_pll_blanking_update(struct smiapp_sensor *sensor)
-{
- struct i2c_client *client = v4l2_get_subdevdata(&sensor->src->sd);
- int rval;
-
- rval = smiapp_pll_update(sensor);
- if (rval < 0)
- return rval;
-
- /* Output from pixel array, including blanking */
- smiapp_update_blanking(sensor);
-
- dev_dbg(&client->dev, "vblank\t\t%d\n", sensor->vblank->val);
- dev_dbg(&client->dev, "hblank\t\t%d\n", sensor->hblank->val);
-
- dev_dbg(&client->dev, "real timeperframe\t100/%d\n",
- sensor->pll.pixel_rate_pixel_array /
- ((sensor->pixel_array->crop[SMIAPP_PA_PAD_SRC].width
- + sensor->hblank->val) *
- (sensor->pixel_array->crop[SMIAPP_PA_PAD_SRC].height
- + sensor->vblank->val) / 100));
-
- return 0;
-}
-
-/*
- *
- * SMIA++ NVM handling
- *
- */
-
-static int smiapp_read_nvm_page(struct smiapp_sensor *sensor, u32 p, u8 *nvm,
- u8 *status)
-{
- unsigned int i;
- int rval;
- u32 s;
-
- *status = 0;
-
- rval = ccs_write(sensor, DATA_TRANSFER_IF_1_PAGE_SELECT, p);
- if (rval)
- return rval;
-
- rval = ccs_write(sensor, DATA_TRANSFER_IF_1_CTRL,
- CCS_DATA_TRANSFER_IF_1_CTRL_ENABLE);
- if (rval)
- return rval;
-
- rval = ccs_read(sensor, DATA_TRANSFER_IF_1_STATUS, &s);
- if (rval)
- return rval;
-
- if (s & CCS_DATA_TRANSFER_IF_1_STATUS_IMPROPER_IF_USAGE) {
- *status = s;
- return -ENODATA;
- }
-
- if (CCS_LIM(sensor, DATA_TRANSFER_IF_CAPABILITY) &
- CCS_DATA_TRANSFER_IF_CAPABILITY_POLLING) {
- for (i = 1000; i > 0; i--) {
- if (s & CCS_DATA_TRANSFER_IF_1_STATUS_READ_IF_READY)
- break;
-
- rval = ccs_read(sensor, DATA_TRANSFER_IF_1_STATUS, &s);
- if (rval)
- return rval;
- }
-
- if (!i)
- return -ETIMEDOUT;
- }
-
- for (i = 0; i <= CCS_LIM_DATA_TRANSFER_IF_1_DATA_MAX_P; i++) {
- u32 v;
-
- rval = ccs_read(sensor, DATA_TRANSFER_IF_1_DATA(i), &v);
- if (rval)
- return rval;
-
- *nvm++ = v;
- }
-
- return 0;
-}
-
-static int smiapp_read_nvm(struct smiapp_sensor *sensor, unsigned char *nvm,
- size_t nvm_size)
-{
- u8 status = 0;
- u32 p;
- int rval = 0, rval2;
-
- for (p = 0; p < nvm_size / (CCS_LIM_DATA_TRANSFER_IF_1_DATA_MAX_P + 1)
- && !rval; p++) {
- rval = smiapp_read_nvm_page(sensor, p, nvm, &status);
- nvm += CCS_LIM_DATA_TRANSFER_IF_1_DATA_MAX_P + 1;
- }
-
- if (rval == -ENODATA &&
- status & CCS_DATA_TRANSFER_IF_1_STATUS_IMPROPER_IF_USAGE)
- rval = 0;
-
- rval2 = ccs_write(sensor, DATA_TRANSFER_IF_1_CTRL, 0);
- if (rval < 0)
- return rval;
- else
- return rval2 ?: p * (CCS_LIM_DATA_TRANSFER_IF_1_DATA_MAX_P + 1);
-}
-
-/*
- *
- * SMIA++ CCI address control
- *
- */
-static int smiapp_change_cci_addr(struct smiapp_sensor *sensor)
-{
- struct i2c_client *client = v4l2_get_subdevdata(&sensor->src->sd);
- int rval;
- u32 val;
-
- client->addr = sensor->hwcfg->i2c_addr_dfl;
-
- rval = ccs_write(sensor, CCI_ADDRESS_CTRL,
- sensor->hwcfg->i2c_addr_alt << 1);
- if (rval)
- return rval;
-
- client->addr = sensor->hwcfg->i2c_addr_alt;
-
- /* verify addr change went ok */
- rval = ccs_read(sensor, CCI_ADDRESS_CTRL, &val);
- if (rval)
- return rval;
-
- if (val != sensor->hwcfg->i2c_addr_alt << 1)
- return -ENODEV;
-
- return 0;
-}
-
-/*
- *
- * SMIA++ Mode Control
- *
- */
-static int smiapp_setup_flash_strobe(struct smiapp_sensor *sensor)
-{
- struct smiapp_flash_strobe_parms *strobe_setup;
- unsigned int ext_freq = sensor->hwcfg->ext_clk;
- u32 tmp;
- u32 strobe_adjustment;
- u32 strobe_width_high_rs;
- int rval;
-
- strobe_setup = sensor->hwcfg->strobe_setup;
-
- /*
- * How to calculate registers related to strobe length. Please
- * do not change, or if you do at least know what you're
- * doing. :-)
- *
- * Sakari Ailus <sakari.ailus@iki.fi> 2010-10-25
- *
- * flash_strobe_length [us] / 10^6 = (tFlash_strobe_width_ctrl
- * / EXTCLK freq [Hz]) * flash_strobe_adjustment
- *
- * tFlash_strobe_width_ctrl E N, [1 - 0xffff]
- * flash_strobe_adjustment E N, [1 - 0xff]
- *
- * The formula above is written as below to keep it on one
- * line:
- *
- * l / 10^6 = w / e * a
- *
- * Let's mark w * a by x:
- *
- * x = w * a
- *
- * Thus, we get:
- *
- * x = l * e / 10^6
- *
- * The strobe width must be at least as long as requested,
- * thus rounding upwards is needed.
- *
- * x = (l * e + 10^6 - 1) / 10^6
- * -----------------------------
- *
- * Maximum possible accuracy is wanted at all times. Thus keep
- * a as small as possible.
- *
- * Calculate a, assuming maximum w, with rounding upwards:
- *
- * a = (x + (2^16 - 1) - 1) / (2^16 - 1)
- * -------------------------------------
- *
- * Thus, we also get w, with that a, with rounding upwards:
- *
- * w = (x + a - 1) / a
- * -------------------
- *
- * To get limits:
- *
- * x E [1, (2^16 - 1) * (2^8 - 1)]
- *
- * Substituting maximum x to the original formula (with rounding),
- * the maximum l is thus
- *
- * (2^16 - 1) * (2^8 - 1) * 10^6 = l * e + 10^6 - 1
- *
- * l = (10^6 * (2^16 - 1) * (2^8 - 1) - 10^6 + 1) / e
- * --------------------------------------------------
- *
- * flash_strobe_length must be clamped between 1 and
- * (10^6 * (2^16 - 1) * (2^8 - 1) - 10^6 + 1) / EXTCLK freq.
- *
- * Then,
- *
- * flash_strobe_adjustment = ((flash_strobe_length *
- * EXTCLK freq + 10^6 - 1) / 10^6 + (2^16 - 1) - 1) / (2^16 - 1)
- *
- * tFlash_strobe_width_ctrl = ((flash_strobe_length *
- * EXTCLK freq + 10^6 - 1) / 10^6 +
- * flash_strobe_adjustment - 1) / flash_strobe_adjustment
- */
- tmp = div_u64(1000000ULL * ((1 << 16) - 1) * ((1 << 8) - 1) -
- 1000000 + 1, ext_freq);
- strobe_setup->strobe_width_high_us =
- clamp_t(u32, strobe_setup->strobe_width_high_us, 1, tmp);
-
- tmp = div_u64(((u64)strobe_setup->strobe_width_high_us * (u64)ext_freq +
- 1000000 - 1), 1000000ULL);
- strobe_adjustment = (tmp + (1 << 16) - 1 - 1) / ((1 << 16) - 1);
- strobe_width_high_rs = (tmp + strobe_adjustment - 1) /
- strobe_adjustment;
-
- rval = ccs_write(sensor, FLASH_MODE_RS, strobe_setup->mode);
- if (rval < 0)
- goto out;
-
- rval = ccs_write(sensor, FLASH_STROBE_ADJUSTMENT, strobe_adjustment);
- if (rval < 0)
- goto out;
-
- rval = ccs_write(sensor, TFLASH_STROBE_WIDTH_HIGH_RS_CTRL,
- strobe_width_high_rs);
- if (rval < 0)
- goto out;
-
- rval = ccs_write(sensor, TFLASH_STROBE_DELAY_RS_CTRL,
- strobe_setup->strobe_delay);
- if (rval < 0)
- goto out;
-
- rval = ccs_write(sensor, FLASH_STROBE_START_POINT,
- strobe_setup->stobe_start_point);
- if (rval < 0)
- goto out;
-
- rval = ccs_write(sensor, FLASH_TRIGGER_RS, strobe_setup->trigger);
-
-out:
- sensor->hwcfg->strobe_setup->trigger = 0;
-
- return rval;
-}
-
-/* -----------------------------------------------------------------------------
- * Power management
- */
-
-static int smiapp_power_on(struct device *dev)
-{
- struct v4l2_subdev *subdev = dev_get_drvdata(dev);
- struct smiapp_subdev *ssd = to_smiapp_subdev(subdev);
- /*
- * The sub-device related to the I2C device is always the
- * source one, i.e. ssds[0].
- */
- struct smiapp_sensor *sensor =
- container_of(ssd, struct smiapp_sensor, ssds[0]);
- unsigned int sleep;
- int rval;
-
- rval = regulator_enable(sensor->vana);
- if (rval) {
- dev_err(dev, "failed to enable vana regulator\n");
- return rval;
- }
- usleep_range(1000, 1000);
-
- rval = clk_prepare_enable(sensor->ext_clk);
- if (rval < 0) {
- dev_dbg(dev, "failed to enable xclk\n");
- goto out_xclk_fail;
- }
- usleep_range(1000, 1000);
-
- gpiod_set_value(sensor->xshutdown, 1);
-
- sleep = SMIAPP_RESET_DELAY(sensor->hwcfg->ext_clk);
- usleep_range(sleep, sleep);
-
- /*
- * Failures to respond to the address change command have been noticed.
- * Those failures seem to be caused by the sensor requiring a longer
- * boot time than advertised. An additional 10ms delay seems to work
- * around the issue, but the SMIA++ I2C write retry hack makes the delay
- * unnecessary. The failures need to be investigated to find a proper
- * fix, and a delay will likely need to be added here if the I2C write
- * retry hack is reverted before the root cause of the boot time issue
- * is found.
- */
-
- if (sensor->hwcfg->i2c_addr_alt) {
- rval = smiapp_change_cci_addr(sensor);
- if (rval) {
- dev_err(dev, "cci address change error\n");
- goto out_cci_addr_fail;
- }
- }
-
- rval = ccs_write(sensor, SOFTWARE_RESET, CCS_SOFTWARE_RESET_ON);
- if (rval < 0) {
- dev_err(dev, "software reset failed\n");
- goto out_cci_addr_fail;
- }
-
- if (sensor->hwcfg->i2c_addr_alt) {
- rval = smiapp_change_cci_addr(sensor);
- if (rval) {
- dev_err(dev, "cci address change error\n");
- goto out_cci_addr_fail;
- }
- }
-
- rval = ccs_write(sensor, COMPRESSION_MODE,
- CCS_COMPRESSION_MODE_DPCM_PCM_SIMPLE);
- if (rval) {
- dev_err(dev, "compression mode set failed\n");
- goto out_cci_addr_fail;
- }
-
- rval = ccs_write(sensor, EXTCLK_FREQUENCY_MHZ,
- sensor->hwcfg->ext_clk / (1000000 / (1 << 8)));
- if (rval) {
- dev_err(dev, "extclk frequency set failed\n");
- goto out_cci_addr_fail;
- }
-
- rval = ccs_write(sensor, CSI_LANE_MODE, sensor->hwcfg->lanes - 1);
- if (rval) {
- dev_err(dev, "csi lane mode set failed\n");
- goto out_cci_addr_fail;
- }
-
- rval = ccs_write(sensor, FAST_STANDBY_CTRL,
- CCS_FAST_STANDBY_CTRL_FRAME_TRUNCATION);
- if (rval) {
- dev_err(dev, "fast standby set failed\n");
- goto out_cci_addr_fail;
- }
-
- rval = ccs_write(sensor, CSI_SIGNALING_MODE,
- sensor->hwcfg->csi_signalling_mode);
- if (rval) {
- dev_err(dev, "csi signalling mode set failed\n");
- goto out_cci_addr_fail;
- }
-
- /* DPHY control done by sensor based on requested link rate */
- rval = ccs_write(sensor, PHY_CTRL, CCS_PHY_CTRL_UI);
- if (rval < 0)
- goto out_cci_addr_fail;
-
- rval = smiapp_call_quirk(sensor, post_poweron);
- if (rval) {
- dev_err(dev, "post_poweron quirks failed\n");
- goto out_cci_addr_fail;
- }
-
- return 0;
-
-out_cci_addr_fail:
- gpiod_set_value(sensor->xshutdown, 0);
- clk_disable_unprepare(sensor->ext_clk);
-
-out_xclk_fail:
- regulator_disable(sensor->vana);
-
- return rval;
-}
-
-static int smiapp_power_off(struct device *dev)
-{
- struct v4l2_subdev *subdev = dev_get_drvdata(dev);
- struct smiapp_subdev *ssd = to_smiapp_subdev(subdev);
- struct smiapp_sensor *sensor =
- container_of(ssd, struct smiapp_sensor, ssds[0]);
-
- /*
- * Currently power/clock to lens are enable/disabled separately
- * but they are essentially the same signals. So if the sensor is
- * powered off while the lens is powered on the sensor does not
- * really see a power off and next time the cci address change
- * will fail. So do a soft reset explicitly here.
- */
- if (sensor->hwcfg->i2c_addr_alt)
- ccs_write(sensor, SOFTWARE_RESET, CCS_SOFTWARE_RESET_ON);
-
- gpiod_set_value(sensor->xshutdown, 0);
- clk_disable_unprepare(sensor->ext_clk);
- usleep_range(5000, 5000);
- regulator_disable(sensor->vana);
- sensor->streaming = false;
-
- return 0;
-}
-
-/* -----------------------------------------------------------------------------
- * Video stream management
- */
-
-static int smiapp_start_streaming(struct smiapp_sensor *sensor)
-{
- struct i2c_client *client = v4l2_get_subdevdata(&sensor->src->sd);
- unsigned int binning_mode;
- int rval;
-
- mutex_lock(&sensor->mutex);
-
- rval = ccs_write(sensor, CSI_DATA_FORMAT,
- (sensor->csi_format->width << 8) |
- sensor->csi_format->compressed);
- if (rval)
- goto out;
-
- /* Binning configuration */
- if (sensor->binning_horizontal == 1 &&
- sensor->binning_vertical == 1) {
- binning_mode = 0;
- } else {
- u8 binning_type =
- (sensor->binning_horizontal << 4)
- | sensor->binning_vertical;
-
- rval = ccs_write(sensor, BINNING_TYPE, binning_type);
- if (rval < 0)
- goto out;
-
- binning_mode = 1;
- }
- rval = ccs_write(sensor, BINNING_MODE, binning_mode);
- if (rval < 0)
- goto out;
-
- /* Set up PLL */
- rval = smiapp_pll_configure(sensor);
- if (rval)
- goto out;
-
- /* Analog crop start coordinates */
- rval = ccs_write(sensor, X_ADDR_START,
- sensor->pixel_array->crop[SMIAPP_PA_PAD_SRC].left);
- if (rval < 0)
- goto out;
-
- rval = ccs_write(sensor, Y_ADDR_START,
- sensor->pixel_array->crop[SMIAPP_PA_PAD_SRC].top);
- if (rval < 0)
- goto out;
-
- /* Analog crop end coordinates */
- rval = ccs_write(
- sensor, X_ADDR_END,
- sensor->pixel_array->crop[SMIAPP_PA_PAD_SRC].left
- + sensor->pixel_array->crop[SMIAPP_PA_PAD_SRC].width - 1);
- if (rval < 0)
- goto out;
-
- rval = ccs_write(
- sensor, Y_ADDR_END,
- sensor->pixel_array->crop[SMIAPP_PA_PAD_SRC].top
- + sensor->pixel_array->crop[SMIAPP_PA_PAD_SRC].height - 1);
- if (rval < 0)
- goto out;
-
- /*
- * Output from pixel array, including blanking, is set using
- * controls below. No need to set here.
- */
-
- /* Digital crop */
- if (CCS_LIM(sensor, DIGITAL_CROP_CAPABILITY)
- == CCS_DIGITAL_CROP_CAPABILITY_INPUT_CROP) {
- rval = ccs_write(
- sensor, DIGITAL_CROP_X_OFFSET,
- sensor->scaler->crop[SMIAPP_PAD_SINK].left);
- if (rval < 0)
- goto out;
-
- rval = ccs_write(
- sensor, DIGITAL_CROP_Y_OFFSET,
- sensor->scaler->crop[SMIAPP_PAD_SINK].top);
- if (rval < 0)
- goto out;
-
- rval = ccs_write(
- sensor, DIGITAL_CROP_IMAGE_WIDTH,
- sensor->scaler->crop[SMIAPP_PAD_SINK].width);
- if (rval < 0)
- goto out;
-
- rval = ccs_write(
- sensor, DIGITAL_CROP_IMAGE_HEIGHT,
- sensor->scaler->crop[SMIAPP_PAD_SINK].height);
- if (rval < 0)
- goto out;
- }
-
- /* Scaling */
- if (CCS_LIM(sensor, SCALING_CAPABILITY)
- != CCS_SCALING_CAPABILITY_NONE) {
- rval = ccs_write(sensor, SCALING_MODE, sensor->scaling_mode);
- if (rval < 0)
- goto out;
-
- rval = ccs_write(sensor, SCALE_M, sensor->scale_m);
- if (rval < 0)
- goto out;
- }
-
- /* Output size from sensor */
- rval = ccs_write(sensor, X_OUTPUT_SIZE,
- sensor->src->crop[SMIAPP_PAD_SRC].width);
- if (rval < 0)
- goto out;
- rval = ccs_write(sensor, Y_OUTPUT_SIZE,
- sensor->src->crop[SMIAPP_PAD_SRC].height);
- if (rval < 0)
- goto out;
-
- if (CCS_LIM(sensor, FLASH_MODE_CAPABILITY) &
- (CCS_FLASH_MODE_CAPABILITY_SINGLE_STROBE |
- SMIAPP_FLASH_MODE_CAPABILITY_MULTIPLE_STROBE) &&
- sensor->hwcfg->strobe_setup != NULL &&
- sensor->hwcfg->strobe_setup->trigger != 0) {
- rval = smiapp_setup_flash_strobe(sensor);
- if (rval)
- goto out;
- }
-
- rval = smiapp_call_quirk(sensor, pre_streamon);
- if (rval) {
- dev_err(&client->dev, "pre_streamon quirks failed\n");
- goto out;
- }
-
- rval = ccs_write(sensor, MODE_SELECT, CCS_MODE_SELECT_STREAMING);
-
-out:
- mutex_unlock(&sensor->mutex);
-
- return rval;
-}
-
-static int smiapp_stop_streaming(struct smiapp_sensor *sensor)
-{
- struct i2c_client *client = v4l2_get_subdevdata(&sensor->src->sd);
- int rval;
-
- mutex_lock(&sensor->mutex);
- rval = ccs_write(sensor, MODE_SELECT, CCS_MODE_SELECT_SOFTWARE_STANDBY);
- if (rval)
- goto out;
-
- rval = smiapp_call_quirk(sensor, post_streamoff);
- if (rval)
- dev_err(&client->dev, "post_streamoff quirks failed\n");
-
-out:
- mutex_unlock(&sensor->mutex);
- return rval;
-}
-
-/* -----------------------------------------------------------------------------
- * V4L2 subdev video operations
- */
-
-static int smiapp_pm_get_init(struct smiapp_sensor *sensor)
-{
- struct i2c_client *client = v4l2_get_subdevdata(&sensor->src->sd);
- int rval;
-
- rval = pm_runtime_get_sync(&client->dev);
- if (rval < 0) {
- if (rval != -EBUSY && rval != -EAGAIN)
- pm_runtime_set_active(&client->dev);
- pm_runtime_put_noidle(&client->dev);
-
- return rval;
- } else if (!rval) {
- rval = v4l2_ctrl_handler_setup(&sensor->pixel_array->
- ctrl_handler);
- if (rval)
- return rval;
-
- return v4l2_ctrl_handler_setup(&sensor->src->ctrl_handler);
- }
-
- return 0;
-}
-
-static int smiapp_set_stream(struct v4l2_subdev *subdev, int enable)
-{
- struct smiapp_sensor *sensor = to_smiapp_sensor(subdev);
- struct i2c_client *client = v4l2_get_subdevdata(&sensor->src->sd);
- int rval;
-
- if (sensor->streaming == enable)
- return 0;
-
- if (!enable) {
- smiapp_stop_streaming(sensor);
- sensor->streaming = false;
- pm_runtime_mark_last_busy(&client->dev);
- pm_runtime_put_autosuspend(&client->dev);
-
- return 0;
- }
-
- rval = smiapp_pm_get_init(sensor);
- if (rval)
- return rval;
-
- sensor->streaming = true;
-
- rval = smiapp_start_streaming(sensor);
- if (rval < 0) {
- sensor->streaming = false;
- pm_runtime_mark_last_busy(&client->dev);
- pm_runtime_put_autosuspend(&client->dev);
- }
-
- return rval;
-}
-
-static int smiapp_enum_mbus_code(struct v4l2_subdev *subdev,
- struct v4l2_subdev_pad_config *cfg,
- struct v4l2_subdev_mbus_code_enum *code)
-{
- struct i2c_client *client = v4l2_get_subdevdata(subdev);
- struct smiapp_sensor *sensor = to_smiapp_sensor(subdev);
- unsigned int i;
- int idx = -1;
- int rval = -EINVAL;
-
- mutex_lock(&sensor->mutex);
-
- dev_err(&client->dev, "subdev %s, pad %d, index %d\n",
- subdev->name, code->pad, code->index);
-
- if (subdev != &sensor->src->sd || code->pad != SMIAPP_PAD_SRC) {
- if (code->index)
- goto out;
-
- code->code = sensor->internal_csi_format->code;
- rval = 0;
- goto out;
- }
-
- for (i = 0; i < ARRAY_SIZE(smiapp_csi_data_formats); i++) {
- if (sensor->mbus_frame_fmts & (1 << i))
- idx++;
-
- if (idx == code->index) {
- code->code = smiapp_csi_data_formats[i].code;
- dev_err(&client->dev, "found index %d, i %d, code %x\n",
- code->index, i, code->code);
- rval = 0;
- break;
- }
- }
-
-out:
- mutex_unlock(&sensor->mutex);
-
- return rval;
-}
-
-static u32 __smiapp_get_mbus_code(struct v4l2_subdev *subdev,
- unsigned int pad)
-{
- struct smiapp_sensor *sensor = to_smiapp_sensor(subdev);
-
- if (subdev == &sensor->src->sd && pad == SMIAPP_PAD_SRC)
- return sensor->csi_format->code;
- else
- return sensor->internal_csi_format->code;
-}
-
-static int __smiapp_get_format(struct v4l2_subdev *subdev,
- struct v4l2_subdev_pad_config *cfg,
- struct v4l2_subdev_format *fmt)
-{
- struct smiapp_subdev *ssd = to_smiapp_subdev(subdev);
-
- if (fmt->which == V4L2_SUBDEV_FORMAT_TRY) {
- fmt->format = *v4l2_subdev_get_try_format(subdev, cfg,
- fmt->pad);
- } else {
- struct v4l2_rect *r;
-
- if (fmt->pad == ssd->source_pad)
- r = &ssd->crop[ssd->source_pad];
- else
- r = &ssd->sink_fmt;
-
- fmt->format.code = __smiapp_get_mbus_code(subdev, fmt->pad);
- fmt->format.width = r->width;
- fmt->format.height = r->height;
- fmt->format.field = V4L2_FIELD_NONE;
- }
-
- return 0;
-}
-
-static int smiapp_get_format(struct v4l2_subdev *subdev,
- struct v4l2_subdev_pad_config *cfg,
- struct v4l2_subdev_format *fmt)
-{
- struct smiapp_sensor *sensor = to_smiapp_sensor(subdev);
- int rval;
-
- mutex_lock(&sensor->mutex);
- rval = __smiapp_get_format(subdev, cfg, fmt);
- mutex_unlock(&sensor->mutex);
-
- return rval;
-}
-
-static void smiapp_get_crop_compose(struct v4l2_subdev *subdev,
- struct v4l2_subdev_pad_config *cfg,
- struct v4l2_rect **crops,
- struct v4l2_rect **comps, int which)
-{
- struct smiapp_subdev *ssd = to_smiapp_subdev(subdev);
- unsigned int i;
-
- if (which == V4L2_SUBDEV_FORMAT_ACTIVE) {
- if (crops)
- for (i = 0; i < subdev->entity.num_pads; i++)
- crops[i] = &ssd->crop[i];
- if (comps)
- *comps = &ssd->compose;
- } else {
- if (crops) {
- for (i = 0; i < subdev->entity.num_pads; i++) {
- crops[i] = v4l2_subdev_get_try_crop(subdev, cfg, i);
- BUG_ON(!crops[i]);
- }
- }
- if (comps) {
- *comps = v4l2_subdev_get_try_compose(subdev, cfg,
- SMIAPP_PAD_SINK);
- BUG_ON(!*comps);
- }
- }
-}
-
-/* Changes require propagation only on sink pad. */
-static void smiapp_propagate(struct v4l2_subdev *subdev,
- struct v4l2_subdev_pad_config *cfg, int which,
- int target)
-{
- struct smiapp_sensor *sensor = to_smiapp_sensor(subdev);
- struct smiapp_subdev *ssd = to_smiapp_subdev(subdev);
- struct v4l2_rect *comp, *crops[SMIAPP_PADS];
-
- smiapp_get_crop_compose(subdev, cfg, crops, &comp, which);
-
- switch (target) {
- case V4L2_SEL_TGT_CROP:
- comp->width = crops[SMIAPP_PAD_SINK]->width;
- comp->height = crops[SMIAPP_PAD_SINK]->height;
- if (which == V4L2_SUBDEV_FORMAT_ACTIVE) {
- if (ssd == sensor->scaler) {
- sensor->scale_m =
- CCS_LIM(sensor, SCALER_N_MIN);
- sensor->scaling_mode =
- CCS_SCALING_MODE_NO_SCALING;
- } else if (ssd == sensor->binner) {
- sensor->binning_horizontal = 1;
- sensor->binning_vertical = 1;
- }
- }
- fallthrough;
- case V4L2_SEL_TGT_COMPOSE:
- *crops[SMIAPP_PAD_SRC] = *comp;
- break;
- default:
- BUG();
- }
-}
-
-static const struct smiapp_csi_data_format
-*smiapp_validate_csi_data_format(struct smiapp_sensor *sensor, u32 code)
-{
- unsigned int i;
-
- for (i = 0; i < ARRAY_SIZE(smiapp_csi_data_formats); i++) {
- if (sensor->mbus_frame_fmts & (1 << i)
- && smiapp_csi_data_formats[i].code == code)
- return &smiapp_csi_data_formats[i];
- }
-
- return sensor->csi_format;
-}
-
-static int smiapp_set_format_source(struct v4l2_subdev *subdev,
- struct v4l2_subdev_pad_config *cfg,
- struct v4l2_subdev_format *fmt)
-{
- struct smiapp_sensor *sensor = to_smiapp_sensor(subdev);
- const struct smiapp_csi_data_format *csi_format,
- *old_csi_format = sensor->csi_format;
- unsigned long *valid_link_freqs;
- u32 code = fmt->format.code;
- unsigned int i;
- int rval;
-
- rval = __smiapp_get_format(subdev, cfg, fmt);
- if (rval)
- return rval;
-
- /*
- * Media bus code is changeable on src subdev's source pad. On
- * other source pads we just get format here.
- */
- if (subdev != &sensor->src->sd)
- return 0;
-
- csi_format = smiapp_validate_csi_data_format(sensor, code);
-
- fmt->format.code = csi_format->code;
-
- if (fmt->which != V4L2_SUBDEV_FORMAT_ACTIVE)
- return 0;
-
- sensor->csi_format = csi_format;
-
- if (csi_format->width != old_csi_format->width)
- for (i = 0; i < ARRAY_SIZE(sensor->test_data); i++)
- __v4l2_ctrl_modify_range(
- sensor->test_data[i], 0,
- (1 << csi_format->width) - 1, 1, 0);
-
- if (csi_format->compressed == old_csi_format->compressed)
- return 0;
-
- valid_link_freqs =
- &sensor->valid_link_freqs[sensor->csi_format->compressed
- - sensor->compressed_min_bpp];
-
- __v4l2_ctrl_modify_range(
- sensor->link_freq, 0,
- __fls(*valid_link_freqs), ~*valid_link_freqs,
- __ffs(*valid_link_freqs));
-
- return smiapp_pll_update(sensor);
-}
-
-static int smiapp_set_format(struct v4l2_subdev *subdev,
- struct v4l2_subdev_pad_config *cfg,
- struct v4l2_subdev_format *fmt)
-{
- struct smiapp_sensor *sensor = to_smiapp_sensor(subdev);
- struct smiapp_subdev *ssd = to_smiapp_subdev(subdev);
- struct v4l2_rect *crops[SMIAPP_PADS];
-
- mutex_lock(&sensor->mutex);
-
- if (fmt->pad == ssd->source_pad) {
- int rval;
-
- rval = smiapp_set_format_source(subdev, cfg, fmt);
-
- mutex_unlock(&sensor->mutex);
-
- return rval;
- }
-
- /* Sink pad. Width and height are changeable here. */
- fmt->format.code = __smiapp_get_mbus_code(subdev, fmt->pad);
- fmt->format.width &= ~1;
- fmt->format.height &= ~1;
- fmt->format.field = V4L2_FIELD_NONE;
-
- fmt->format.width =
- clamp(fmt->format.width,
- CCS_LIM(sensor, MIN_X_OUTPUT_SIZE),
- CCS_LIM(sensor, MAX_X_OUTPUT_SIZE));
- fmt->format.height =
- clamp(fmt->format.height,
- CCS_LIM(sensor, MIN_Y_OUTPUT_SIZE),
- CCS_LIM(sensor, MAX_Y_OUTPUT_SIZE));
-
- smiapp_get_crop_compose(subdev, cfg, crops, NULL, fmt->which);
-
- crops[ssd->sink_pad]->left = 0;
- crops[ssd->sink_pad]->top = 0;
- crops[ssd->sink_pad]->width = fmt->format.width;
- crops[ssd->sink_pad]->height = fmt->format.height;
- if (fmt->which == V4L2_SUBDEV_FORMAT_ACTIVE)
- ssd->sink_fmt = *crops[ssd->sink_pad];
- smiapp_propagate(subdev, cfg, fmt->which,
- V4L2_SEL_TGT_CROP);
-
- mutex_unlock(&sensor->mutex);
-
- return 0;
-}
-
-/*
- * Calculate goodness of scaled image size compared to expected image
- * size and flags provided.
- */
-#define SCALING_GOODNESS 100000
-#define SCALING_GOODNESS_EXTREME 100000000
-static int scaling_goodness(struct v4l2_subdev *subdev, int w, int ask_w,
- int h, int ask_h, u32 flags)
-{
- struct smiapp_sensor *sensor = to_smiapp_sensor(subdev);
- struct i2c_client *client = v4l2_get_subdevdata(subdev);
- int val = 0;
-
- w &= ~1;
- ask_w &= ~1;
- h &= ~1;
- ask_h &= ~1;
-
- if (flags & V4L2_SEL_FLAG_GE) {
- if (w < ask_w)
- val -= SCALING_GOODNESS;
- if (h < ask_h)
- val -= SCALING_GOODNESS;
- }
-
- if (flags & V4L2_SEL_FLAG_LE) {
- if (w > ask_w)
- val -= SCALING_GOODNESS;
- if (h > ask_h)
- val -= SCALING_GOODNESS;
- }
-
- val -= abs(w - ask_w);
- val -= abs(h - ask_h);
-
- if (w < CCS_LIM(sensor, MIN_X_OUTPUT_SIZE))
- val -= SCALING_GOODNESS_EXTREME;
-
- dev_dbg(&client->dev, "w %d ask_w %d h %d ask_h %d goodness %d\n",
- w, ask_w, h, ask_h, val);
-
- return val;
-}
-
-static void smiapp_set_compose_binner(struct v4l2_subdev *subdev,
- struct v4l2_subdev_pad_config *cfg,
- struct v4l2_subdev_selection *sel,
- struct v4l2_rect **crops,
- struct v4l2_rect *comp)
-{
- struct smiapp_sensor *sensor = to_smiapp_sensor(subdev);
- unsigned int i;
- unsigned int binh = 1, binv = 1;
- int best = scaling_goodness(
- subdev,
- crops[SMIAPP_PAD_SINK]->width, sel->r.width,
- crops[SMIAPP_PAD_SINK]->height, sel->r.height, sel->flags);
-
- for (i = 0; i < sensor->nbinning_subtypes; i++) {
- int this = scaling_goodness(
- subdev,
- crops[SMIAPP_PAD_SINK]->width
- / sensor->binning_subtypes[i].horizontal,
- sel->r.width,
- crops[SMIAPP_PAD_SINK]->height
- / sensor->binning_subtypes[i].vertical,
- sel->r.height, sel->flags);
-
- if (this > best) {
- binh = sensor->binning_subtypes[i].horizontal;
- binv = sensor->binning_subtypes[i].vertical;
- best = this;
- }
- }
- if (sel->which == V4L2_SUBDEV_FORMAT_ACTIVE) {
- sensor->binning_vertical = binv;
- sensor->binning_horizontal = binh;
- }
-
- sel->r.width = (crops[SMIAPP_PAD_SINK]->width / binh) & ~1;
- sel->r.height = (crops[SMIAPP_PAD_SINK]->height / binv) & ~1;
-}
-
-/*
- * Calculate best scaling ratio and mode for given output resolution.
- *
- * Try all of these: horizontal ratio, vertical ratio and smallest
- * size possible (horizontally).
- *
- * Also try whether horizontal scaler or full scaler gives a better
- * result.
- */
-static void smiapp_set_compose_scaler(struct v4l2_subdev *subdev,
- struct v4l2_subdev_pad_config *cfg,
- struct v4l2_subdev_selection *sel,
- struct v4l2_rect **crops,
- struct v4l2_rect *comp)
-{
- struct i2c_client *client = v4l2_get_subdevdata(subdev);
- struct smiapp_sensor *sensor = to_smiapp_sensor(subdev);
- u32 min, max, a, b, max_m;
- u32 scale_m = CCS_LIM(sensor, SCALER_N_MIN);
- int mode = CCS_SCALING_MODE_HORIZONTAL;
- u32 try[4];
- u32 ntry = 0;
- unsigned int i;
- int best = INT_MIN;
-
- sel->r.width = min_t(unsigned int, sel->r.width,
- crops[SMIAPP_PAD_SINK]->width);
- sel->r.height = min_t(unsigned int, sel->r.height,
- crops[SMIAPP_PAD_SINK]->height);
-
- a = crops[SMIAPP_PAD_SINK]->width
- * CCS_LIM(sensor, SCALER_N_MIN) / sel->r.width;
- b = crops[SMIAPP_PAD_SINK]->height
- * CCS_LIM(sensor, SCALER_N_MIN) / sel->r.height;
- max_m = crops[SMIAPP_PAD_SINK]->width
- * CCS_LIM(sensor, SCALER_N_MIN)
- / CCS_LIM(sensor, MIN_X_OUTPUT_SIZE);
-
- a = clamp(a, CCS_LIM(sensor, SCALER_M_MIN),
- CCS_LIM(sensor, SCALER_M_MAX));
- b = clamp(b, CCS_LIM(sensor, SCALER_M_MIN),
- CCS_LIM(sensor, SCALER_M_MAX));
- max_m = clamp(max_m, CCS_LIM(sensor, SCALER_M_MIN),
- CCS_LIM(sensor, SCALER_M_MAX));
-
- dev_dbg(&client->dev, "scaling: a %d b %d max_m %d\n", a, b, max_m);
-
- min = min(max_m, min(a, b));
- max = min(max_m, max(a, b));
-
- try[ntry] = min;
- ntry++;
- if (min != max) {
- try[ntry] = max;
- ntry++;
- }
- if (max != max_m) {
- try[ntry] = min + 1;
- ntry++;
- if (min != max) {
- try[ntry] = max + 1;
- ntry++;
- }
- }
-
- for (i = 0; i < ntry; i++) {
- int this = scaling_goodness(
- subdev,
- crops[SMIAPP_PAD_SINK]->width
- / try[i] * CCS_LIM(sensor, SCALER_N_MIN),
- sel->r.width,
- crops[SMIAPP_PAD_SINK]->height,
- sel->r.height,
- sel->flags);
-
- dev_dbg(&client->dev, "trying factor %d (%d)\n", try[i], i);
-
- if (this > best) {
- scale_m = try[i];
- mode = CCS_SCALING_MODE_HORIZONTAL;
- best = this;
- }
-
- if (CCS_LIM(sensor, SCALING_CAPABILITY)
- == CCS_SCALING_CAPABILITY_HORIZONTAL)
- continue;
-
- this = scaling_goodness(
- subdev, crops[SMIAPP_PAD_SINK]->width
- / try[i]
- * CCS_LIM(sensor, SCALER_N_MIN),
- sel->r.width,
- crops[SMIAPP_PAD_SINK]->height
- / try[i]
- * CCS_LIM(sensor, SCALER_N_MIN),
- sel->r.height,
- sel->flags);
-
- if (this > best) {
- scale_m = try[i];
- mode = SMIAPP_SCALING_MODE_BOTH;
- best = this;
- }
- }
-
- sel->r.width =
- (crops[SMIAPP_PAD_SINK]->width
- / scale_m
- * CCS_LIM(sensor, SCALER_N_MIN)) & ~1;
- if (mode == SMIAPP_SCALING_MODE_BOTH)
- sel->r.height =
- (crops[SMIAPP_PAD_SINK]->height
- / scale_m
- * CCS_LIM(sensor, SCALER_N_MIN))
- & ~1;
- else
- sel->r.height = crops[SMIAPP_PAD_SINK]->height;
-
- if (sel->which == V4L2_SUBDEV_FORMAT_ACTIVE) {
- sensor->scale_m = scale_m;
- sensor->scaling_mode = mode;
- }
-}
-/* We're only called on source pads. This function sets scaling. */
-static int smiapp_set_compose(struct v4l2_subdev *subdev,
- struct v4l2_subdev_pad_config *cfg,
- struct v4l2_subdev_selection *sel)
-{
- struct smiapp_sensor *sensor = to_smiapp_sensor(subdev);
- struct smiapp_subdev *ssd = to_smiapp_subdev(subdev);
- struct v4l2_rect *comp, *crops[SMIAPP_PADS];
-
- smiapp_get_crop_compose(subdev, cfg, crops, &comp, sel->which);
-
- sel->r.top = 0;
- sel->r.left = 0;
-
- if (ssd == sensor->binner)
- smiapp_set_compose_binner(subdev, cfg, sel, crops, comp);
- else
- smiapp_set_compose_scaler(subdev, cfg, sel, crops, comp);
-
- *comp = sel->r;
- smiapp_propagate(subdev, cfg, sel->which, V4L2_SEL_TGT_COMPOSE);
-
- if (sel->which == V4L2_SUBDEV_FORMAT_ACTIVE)
- return smiapp_pll_blanking_update(sensor);
-
- return 0;
-}
-
-static int __smiapp_sel_supported(struct v4l2_subdev *subdev,
- struct v4l2_subdev_selection *sel)
-{
- struct smiapp_sensor *sensor = to_smiapp_sensor(subdev);
- struct smiapp_subdev *ssd = to_smiapp_subdev(subdev);
-
- /* We only implement crop in three places. */
- switch (sel->target) {
- case V4L2_SEL_TGT_CROP:
- case V4L2_SEL_TGT_CROP_BOUNDS:
- if (ssd == sensor->pixel_array
- && sel->pad == SMIAPP_PA_PAD_SRC)
- return 0;
- if (ssd == sensor->src
- && sel->pad == SMIAPP_PAD_SRC)
- return 0;
- if (ssd == sensor->scaler && sel->pad == SMIAPP_PAD_SINK &&
- CCS_LIM(sensor, DIGITAL_CROP_CAPABILITY)
- == CCS_DIGITAL_CROP_CAPABILITY_INPUT_CROP)
- return 0;
- return -EINVAL;
- case V4L2_SEL_TGT_NATIVE_SIZE:
- if (ssd == sensor->pixel_array
- && sel->pad == SMIAPP_PA_PAD_SRC)
- return 0;
- return -EINVAL;
- case V4L2_SEL_TGT_COMPOSE:
- case V4L2_SEL_TGT_COMPOSE_BOUNDS:
- if (sel->pad == ssd->source_pad)
- return -EINVAL;
- if (ssd == sensor->binner)
- return 0;
- if (ssd == sensor->scaler && CCS_LIM(sensor, SCALING_CAPABILITY)
- != CCS_SCALING_CAPABILITY_NONE)
- return 0;
- fallthrough;
- default:
- return -EINVAL;
- }
-}
-
-static int smiapp_set_crop(struct v4l2_subdev *subdev,
- struct v4l2_subdev_pad_config *cfg,
- struct v4l2_subdev_selection *sel)
-{
- struct smiapp_sensor *sensor = to_smiapp_sensor(subdev);
- struct smiapp_subdev *ssd = to_smiapp_subdev(subdev);
- struct v4l2_rect *src_size, *crops[SMIAPP_PADS];
- struct v4l2_rect _r;
-
- smiapp_get_crop_compose(subdev, cfg, crops, NULL, sel->which);
-
- if (sel->which == V4L2_SUBDEV_FORMAT_ACTIVE) {
- if (sel->pad == ssd->sink_pad)
- src_size = &ssd->sink_fmt;
- else
- src_size = &ssd->compose;
- } else {
- if (sel->pad == ssd->sink_pad) {
- _r.left = 0;
- _r.top = 0;
- _r.width = v4l2_subdev_get_try_format(subdev, cfg, sel->pad)
- ->width;
- _r.height = v4l2_subdev_get_try_format(subdev, cfg, sel->pad)
- ->height;
- src_size = &_r;
- } else {
- src_size = v4l2_subdev_get_try_compose(
- subdev, cfg, ssd->sink_pad);
- }
- }
-
- if (ssd == sensor->src && sel->pad == SMIAPP_PAD_SRC) {
- sel->r.left = 0;
- sel->r.top = 0;
- }
-
- sel->r.width = min(sel->r.width, src_size->width);
- sel->r.height = min(sel->r.height, src_size->height);
-
- sel->r.left = min_t(int, sel->r.left, src_size->width - sel->r.width);
- sel->r.top = min_t(int, sel->r.top, src_size->height - sel->r.height);
-
- *crops[sel->pad] = sel->r;
-
- if (ssd != sensor->pixel_array && sel->pad == SMIAPP_PAD_SINK)
- smiapp_propagate(subdev, cfg, sel->which,
- V4L2_SEL_TGT_CROP);
-
- return 0;
-}
-
-static void smiapp_get_native_size(struct smiapp_subdev *ssd,
- struct v4l2_rect *r)
-{
- r->top = 0;
- r->left = 0;
- r->width = CCS_LIM(ssd->sensor, X_ADDR_MAX) + 1;
- r->height = CCS_LIM(ssd->sensor, Y_ADDR_MAX) + 1;
-}
-
-static int __smiapp_get_selection(struct v4l2_subdev *subdev,
- struct v4l2_subdev_pad_config *cfg,
- struct v4l2_subdev_selection *sel)
-{
- struct smiapp_sensor *sensor = to_smiapp_sensor(subdev);
- struct smiapp_subdev *ssd = to_smiapp_subdev(subdev);
- struct v4l2_rect *comp, *crops[SMIAPP_PADS];
- struct v4l2_rect sink_fmt;
- int ret;
-
- ret = __smiapp_sel_supported(subdev, sel);
- if (ret)
- return ret;
-
- smiapp_get_crop_compose(subdev, cfg, crops, &comp, sel->which);
-
- if (sel->which == V4L2_SUBDEV_FORMAT_ACTIVE) {
- sink_fmt = ssd->sink_fmt;
- } else {
- struct v4l2_mbus_framefmt *fmt =
- v4l2_subdev_get_try_format(subdev, cfg, ssd->sink_pad);
-
- sink_fmt.left = 0;
- sink_fmt.top = 0;
- sink_fmt.width = fmt->width;
- sink_fmt.height = fmt->height;
- }
-
- switch (sel->target) {
- case V4L2_SEL_TGT_CROP_BOUNDS:
- case V4L2_SEL_TGT_NATIVE_SIZE:
- if (ssd == sensor->pixel_array)
- smiapp_get_native_size(ssd, &sel->r);
- else if (sel->pad == ssd->sink_pad)
- sel->r = sink_fmt;
- else
- sel->r = *comp;
- break;
- case V4L2_SEL_TGT_CROP:
- case V4L2_SEL_TGT_COMPOSE_BOUNDS:
- sel->r = *crops[sel->pad];
- break;
- case V4L2_SEL_TGT_COMPOSE:
- sel->r = *comp;
- break;
- }
-
- return 0;
-}
-
-static int smiapp_get_selection(struct v4l2_subdev *subdev,
- struct v4l2_subdev_pad_config *cfg,
- struct v4l2_subdev_selection *sel)
-{
- struct smiapp_sensor *sensor = to_smiapp_sensor(subdev);
- int rval;
-
- mutex_lock(&sensor->mutex);
- rval = __smiapp_get_selection(subdev, cfg, sel);
- mutex_unlock(&sensor->mutex);
-
- return rval;
-}
-static int smiapp_set_selection(struct v4l2_subdev *subdev,
- struct v4l2_subdev_pad_config *cfg,
- struct v4l2_subdev_selection *sel)
-{
- struct smiapp_sensor *sensor = to_smiapp_sensor(subdev);
- int ret;
-
- ret = __smiapp_sel_supported(subdev, sel);
- if (ret)
- return ret;
-
- mutex_lock(&sensor->mutex);
-
- sel->r.left = max(0, sel->r.left & ~1);
- sel->r.top = max(0, sel->r.top & ~1);
- sel->r.width = SMIAPP_ALIGN_DIM(sel->r.width, sel->flags);
- sel->r.height = SMIAPP_ALIGN_DIM(sel->r.height, sel->flags);
-
- sel->r.width = max_t(unsigned int,
- CCS_LIM(sensor, MIN_X_OUTPUT_SIZE),
- sel->r.width);
- sel->r.height = max_t(unsigned int,
- CCS_LIM(sensor, MIN_Y_OUTPUT_SIZE),
- sel->r.height);
-
- switch (sel->target) {
- case V4L2_SEL_TGT_CROP:
- ret = smiapp_set_crop(subdev, cfg, sel);
- break;
- case V4L2_SEL_TGT_COMPOSE:
- ret = smiapp_set_compose(subdev, cfg, sel);
- break;
- default:
- ret = -EINVAL;
- }
-
- mutex_unlock(&sensor->mutex);
- return ret;
-}
-
-static int smiapp_get_skip_frames(struct v4l2_subdev *subdev, u32 *frames)
-{
- struct smiapp_sensor *sensor = to_smiapp_sensor(subdev);
-
- *frames = sensor->frame_skip;
- return 0;
-}
-
-static int smiapp_get_skip_top_lines(struct v4l2_subdev *subdev, u32 *lines)
-{
- struct smiapp_sensor *sensor = to_smiapp_sensor(subdev);
-
- *lines = sensor->image_start;
-
- return 0;
-}
-
-/* -----------------------------------------------------------------------------
- * sysfs attributes
- */
-
-static ssize_t
-smiapp_sysfs_nvm_read(struct device *dev, struct device_attribute *attr,
- char *buf)
-{
- struct v4l2_subdev *subdev = i2c_get_clientdata(to_i2c_client(dev));
- struct i2c_client *client = v4l2_get_subdevdata(subdev);
- struct smiapp_sensor *sensor = to_smiapp_sensor(subdev);
- int rval;
-
- if (!sensor->dev_init_done)
- return -EBUSY;
-
- rval = smiapp_pm_get_init(sensor);
- if (rval < 0)
- return -ENODEV;
-
- rval = smiapp_read_nvm(sensor, buf, PAGE_SIZE);
- if (rval < 0) {
- pm_runtime_put(&client->dev);
- dev_err(&client->dev, "nvm read failed\n");
- return -ENODEV;
- }
-
- pm_runtime_mark_last_busy(&client->dev);
- pm_runtime_put_autosuspend(&client->dev);
-
- /*
- * NVM is still way below a PAGE_SIZE, so we can safely
- * assume this for now.
- */
- return rval;
-}
-static DEVICE_ATTR(nvm, S_IRUGO, smiapp_sysfs_nvm_read, NULL);
-
-static ssize_t
-smiapp_sysfs_ident_read(struct device *dev, struct device_attribute *attr,
- char *buf)
-{
- struct v4l2_subdev *subdev = i2c_get_clientdata(to_i2c_client(dev));
- struct smiapp_sensor *sensor = to_smiapp_sensor(subdev);
- struct smiapp_module_info *minfo = &sensor->minfo;
-
- if (minfo->mipi_manufacturer_id)
- return snprintf(buf, PAGE_SIZE, "%4.4x%4.4x%2.2x\n",
- minfo->mipi_manufacturer_id, minfo->model_id,
- minfo->revision_number_major) + 1;
- else
- return snprintf(buf, PAGE_SIZE, "%2.2x%4.4x%2.2x\n",
- minfo->smia_manufacturer_id, minfo->model_id,
- minfo->revision_number_major) + 1;
-}
-
-static DEVICE_ATTR(ident, S_IRUGO, smiapp_sysfs_ident_read, NULL);
-
-/* -----------------------------------------------------------------------------
- * V4L2 subdev core operations
- */
-
-static int smiapp_identify_module(struct smiapp_sensor *sensor)
-{
- struct i2c_client *client = v4l2_get_subdevdata(&sensor->src->sd);
- struct smiapp_module_info *minfo = &sensor->minfo;
- unsigned int i;
- int rval = 0;
-
- minfo->name = SMIAPP_NAME;
-
- /* Module info */
- rval = ccs_read(sensor, MODULE_MANUFACTURER_ID,
- &minfo->mipi_manufacturer_id);
- if (!rval && !minfo->mipi_manufacturer_id)
- rval = ccs_read_addr_8only(sensor,
- SMIAPP_REG_U8_MANUFACTURER_ID,
- &minfo->smia_manufacturer_id);
- if (!rval)
- rval = ccs_read_addr_8only(sensor, CCS_R_MODULE_MODEL_ID,
- &minfo->model_id);
- if (!rval)
- rval = ccs_read_addr_8only(sensor,
- CCS_R_MODULE_REVISION_NUMBER_MAJOR,
- &minfo->revision_number_major);
- if (!rval)
- rval = ccs_read_addr_8only(sensor,
- CCS_R_MODULE_REVISION_NUMBER_MINOR,
- &minfo->revision_number_minor);
- if (!rval)
- rval = ccs_read_addr_8only(sensor, CCS_R_MODULE_DATE_YEAR,
- &minfo->module_year);
- if (!rval)
- rval = ccs_read_addr_8only(sensor, CCS_R_MODULE_DATE_MONTH,
- &minfo->module_month);
- if (!rval)
- rval = ccs_read_addr_8only(sensor, CCS_R_MODULE_DATE_DAY,
- &minfo->module_day);
-
- /* Sensor info */
- if (!rval)
- rval = ccs_read(sensor, SENSOR_MANUFACTURER_ID,
- &minfo->sensor_mipi_manufacturer_id);
- if (!rval && !minfo->sensor_mipi_manufacturer_id)
- rval = ccs_read_addr_8only(sensor,
- CCS_R_SENSOR_MANUFACTURER_ID,
- &minfo->sensor_smia_manufacturer_id);
- if (!rval)
- rval = ccs_read_addr_8only(sensor,
- CCS_R_SENSOR_MODEL_ID,
- &minfo->sensor_model_id);
- if (!rval)
- rval = ccs_read_addr_8only(sensor,
- CCS_R_SENSOR_REVISION_NUMBER,
- &minfo->sensor_revision_number);
- if (!rval)
- rval = ccs_read_addr_8only(sensor,
- CCS_R_SENSOR_FIRMWARE_VERSION,
- &minfo->sensor_firmware_version);
-
- /* SMIA */
- if (!rval)
- rval = ccs_read(sensor, MIPI_CCS_VERSION, &minfo->ccs_version);
- if (!rval && !minfo->ccs_version)
- rval = ccs_read_addr_8only(sensor, SMIAPP_REG_U8_SMIA_VERSION,
- &minfo->smia_version);
- if (!rval && !minfo->ccs_version)
- rval = ccs_read_addr_8only(sensor, SMIAPP_REG_U8_SMIAPP_VERSION,
- &minfo->smiapp_version);
-
- if (rval) {
- dev_err(&client->dev, "sensor detection failed\n");
- return -ENODEV;
- }
-
- if (minfo->mipi_manufacturer_id)
- dev_dbg(&client->dev, "MIPI CCS module 0x%4.4x-0x%4.4x\n",
- minfo->mipi_manufacturer_id, minfo->model_id);
- else
- dev_dbg(&client->dev, "SMIA module 0x%2.2x-0x%4.4x\n",
- minfo->smia_manufacturer_id, minfo->model_id);
-
- dev_dbg(&client->dev,
- "module revision 0x%2.2x-0x%2.2x date %2.2d-%2.2d-%2.2d\n",
- minfo->revision_number_major, minfo->revision_number_minor,
- minfo->module_year, minfo->module_month, minfo->module_day);
-
- if (minfo->sensor_mipi_manufacturer_id)
- dev_dbg(&client->dev, "MIPI CCS sensor 0x%4.4x-0x%4.4x\n",
- minfo->sensor_mipi_manufacturer_id,
- minfo->sensor_model_id);
- else
- dev_dbg(&client->dev, "SMIA sensor 0x%2.2x-0x%4.4x\n",
- minfo->sensor_smia_manufacturer_id,
- minfo->sensor_model_id);
-
- dev_dbg(&client->dev,
- "sensor revision 0x%2.2x firmware version 0x%2.2x\n",
- minfo->sensor_revision_number, minfo->sensor_firmware_version);
-
- if (minfo->ccs_version)
- dev_dbg(&client->dev, "MIPI CCS version %u.%u",
- (minfo->ccs_version & CCS_MIPI_CCS_VERSION_MAJOR_MASK)
- >> CCS_MIPI_CCS_VERSION_MAJOR_SHIFT,
- (minfo->ccs_version & CCS_MIPI_CCS_VERSION_MINOR_MASK));
- else
- dev_dbg(&client->dev,
- "smia version %2.2d smiapp version %2.2d\n",
- minfo->smia_version, minfo->smiapp_version);
-
- /*
- * Some modules have bad data in the lvalues below. Hope the
- * rvalues have better stuff. The lvalues are module
- * parameters whereas the rvalues are sensor parameters.
- */
- if (minfo->sensor_smia_manufacturer_id &&
- !minfo->smia_manufacturer_id && !minfo->model_id) {
- minfo->smia_manufacturer_id =
- minfo->sensor_smia_manufacturer_id;
- minfo->model_id = minfo->sensor_model_id;
- minfo->revision_number_major = minfo->sensor_revision_number;
- }
-
- for (i = 0; i < ARRAY_SIZE(smiapp_module_idents); i++) {
- if (smiapp_module_idents[i].mipi_manufacturer_id &&
- smiapp_module_idents[i].mipi_manufacturer_id
- != minfo->mipi_manufacturer_id)
- continue;
- if (smiapp_module_idents[i].smia_manufacturer_id &&
- smiapp_module_idents[i].smia_manufacturer_id
- != minfo->smia_manufacturer_id)
- continue;
- if (smiapp_module_idents[i].model_id != minfo->model_id)
- continue;
- if (smiapp_module_idents[i].flags
- & SMIAPP_MODULE_IDENT_FLAG_REV_LE) {
- if (smiapp_module_idents[i].revision_number_major
- < minfo->revision_number_major)
- continue;
- } else {
- if (smiapp_module_idents[i].revision_number_major
- != minfo->revision_number_major)
- continue;
- }
-
- minfo->name = smiapp_module_idents[i].name;
- minfo->quirk = smiapp_module_idents[i].quirk;
- break;
- }
-
- if (i >= ARRAY_SIZE(smiapp_module_idents))
- dev_warn(&client->dev,
- "no quirks for this module; let's hope it's fully compliant\n");
-
- dev_dbg(&client->dev, "the sensor is called %s\n",
- minfo->name);
-
- return 0;
-}
-
-static const struct v4l2_subdev_ops smiapp_ops;
-static const struct v4l2_subdev_internal_ops smiapp_internal_ops;
-static const struct media_entity_operations smiapp_entity_ops;
-
-static int smiapp_register_subdev(struct smiapp_sensor *sensor,
- struct smiapp_subdev *ssd,
- struct smiapp_subdev *sink_ssd,
- u16 source_pad, u16 sink_pad, u32 link_flags)
-{
- struct i2c_client *client = v4l2_get_subdevdata(&sensor->src->sd);
- int rval;
-
- if (!sink_ssd)
- return 0;
-
- rval = media_entity_pads_init(&ssd->sd.entity,
- ssd->npads, ssd->pads);
- if (rval) {
- dev_err(&client->dev,
- "media_entity_pads_init failed\n");
- return rval;
- }
-
- rval = v4l2_device_register_subdev(sensor->src->sd.v4l2_dev,
- &ssd->sd);
- if (rval) {
- dev_err(&client->dev,
- "v4l2_device_register_subdev failed\n");
- return rval;
- }
-
- rval = media_create_pad_link(&ssd->sd.entity, source_pad,
- &sink_ssd->sd.entity, sink_pad,
- link_flags);
- if (rval) {
- dev_err(&client->dev,
- "media_create_pad_link failed\n");
- v4l2_device_unregister_subdev(&ssd->sd);
- return rval;
- }
-
- return 0;
-}
-
-static void smiapp_unregistered(struct v4l2_subdev *subdev)
-{
- struct smiapp_sensor *sensor = to_smiapp_sensor(subdev);
- unsigned int i;
-
- for (i = 1; i < sensor->ssds_used; i++)
- v4l2_device_unregister_subdev(&sensor->ssds[i].sd);
-}
-
-static int smiapp_registered(struct v4l2_subdev *subdev)
-{
- struct smiapp_sensor *sensor = to_smiapp_sensor(subdev);
- int rval;
-
- if (sensor->scaler) {
- rval = smiapp_register_subdev(
- sensor, sensor->binner, sensor->scaler,
- SMIAPP_PAD_SRC, SMIAPP_PAD_SINK,
- MEDIA_LNK_FL_ENABLED | MEDIA_LNK_FL_IMMUTABLE);
- if (rval < 0)
- return rval;
- }
-
- rval = smiapp_register_subdev(
- sensor, sensor->pixel_array, sensor->binner,
- SMIAPP_PA_PAD_SRC, SMIAPP_PAD_SINK,
- MEDIA_LNK_FL_ENABLED | MEDIA_LNK_FL_IMMUTABLE);
- if (rval)
- goto out_err;
-
- return 0;
-
-out_err:
- smiapp_unregistered(subdev);
-
- return rval;
-}
-
-static void smiapp_cleanup(struct smiapp_sensor *sensor)
-{
- struct i2c_client *client = v4l2_get_subdevdata(&sensor->src->sd);
-
- device_remove_file(&client->dev, &dev_attr_nvm);
- device_remove_file(&client->dev, &dev_attr_ident);
-
- smiapp_free_controls(sensor);
-}
-
-static void smiapp_create_subdev(struct smiapp_sensor *sensor,
- struct smiapp_subdev *ssd, const char *name,
- unsigned short num_pads)
-{
- struct i2c_client *client = v4l2_get_subdevdata(&sensor->src->sd);
-
- if (!ssd)
- return;
-
- if (ssd != sensor->src)
- v4l2_subdev_init(&ssd->sd, &smiapp_ops);
-
- ssd->sd.flags |= V4L2_SUBDEV_FL_HAS_DEVNODE;
- ssd->sensor = sensor;
-
- ssd->npads = num_pads;
- ssd->source_pad = num_pads - 1;
-
- v4l2_i2c_subdev_set_name(&ssd->sd, client, sensor->minfo.name, name);
-
- smiapp_get_native_size(ssd, &ssd->sink_fmt);
-
- ssd->compose.width = ssd->sink_fmt.width;
- ssd->compose.height = ssd->sink_fmt.height;
- ssd->crop[ssd->source_pad] = ssd->compose;
- ssd->pads[ssd->source_pad].flags = MEDIA_PAD_FL_SOURCE;
- if (ssd != sensor->pixel_array) {
- ssd->crop[ssd->sink_pad] = ssd->compose;
- ssd->pads[ssd->sink_pad].flags = MEDIA_PAD_FL_SINK;
- }
-
- ssd->sd.entity.ops = &smiapp_entity_ops;
-
- if (ssd == sensor->src)
- return;
-
- ssd->sd.internal_ops = &smiapp_internal_ops;
- ssd->sd.owner = THIS_MODULE;
- ssd->sd.dev = &client->dev;
- v4l2_set_subdevdata(&ssd->sd, client);
-}
-
-static int smiapp_open(struct v4l2_subdev *sd, struct v4l2_subdev_fh *fh)
-{
- struct smiapp_subdev *ssd = to_smiapp_subdev(sd);
- struct smiapp_sensor *sensor = ssd->sensor;
- unsigned int i;
-
- mutex_lock(&sensor->mutex);
-
- for (i = 0; i < ssd->npads; i++) {
- struct v4l2_mbus_framefmt *try_fmt =
- v4l2_subdev_get_try_format(sd, fh->pad, i);
- struct v4l2_rect *try_crop =
- v4l2_subdev_get_try_crop(sd, fh->pad, i);
- struct v4l2_rect *try_comp;
-
- smiapp_get_native_size(ssd, try_crop);
-
- try_fmt->width = try_crop->width;
- try_fmt->height = try_crop->height;
- try_fmt->code = sensor->internal_csi_format->code;
- try_fmt->field = V4L2_FIELD_NONE;
-
- if (ssd != sensor->pixel_array)
- continue;
-
- try_comp = v4l2_subdev_get_try_compose(sd, fh->pad, i);
- *try_comp = *try_crop;
- }
-
- mutex_unlock(&sensor->mutex);
-
- return 0;
-}
-
-static const struct v4l2_subdev_video_ops smiapp_video_ops = {
- .s_stream = smiapp_set_stream,
-};
-
-static const struct v4l2_subdev_pad_ops smiapp_pad_ops = {
- .enum_mbus_code = smiapp_enum_mbus_code,
- .get_fmt = smiapp_get_format,
- .set_fmt = smiapp_set_format,
- .get_selection = smiapp_get_selection,
- .set_selection = smiapp_set_selection,
-};
-
-static const struct v4l2_subdev_sensor_ops smiapp_sensor_ops = {
- .g_skip_frames = smiapp_get_skip_frames,
- .g_skip_top_lines = smiapp_get_skip_top_lines,
-};
-
-static const struct v4l2_subdev_ops smiapp_ops = {
- .video = &smiapp_video_ops,
- .pad = &smiapp_pad_ops,
- .sensor = &smiapp_sensor_ops,
-};
-
-static const struct media_entity_operations smiapp_entity_ops = {
- .link_validate = v4l2_subdev_link_validate,
-};
-
-static const struct v4l2_subdev_internal_ops smiapp_internal_src_ops = {
- .registered = smiapp_registered,
- .unregistered = smiapp_unregistered,
- .open = smiapp_open,
-};
-
-static const struct v4l2_subdev_internal_ops smiapp_internal_ops = {
- .open = smiapp_open,
-};
-
-/* -----------------------------------------------------------------------------
- * I2C Driver
- */
-
-static int __maybe_unused smiapp_suspend(struct device *dev)
-{
- struct i2c_client *client = to_i2c_client(dev);
- struct v4l2_subdev *subdev = i2c_get_clientdata(client);
- struct smiapp_sensor *sensor = to_smiapp_sensor(subdev);
- bool streaming = sensor->streaming;
- int rval;
-
- rval = pm_runtime_get_sync(dev);
- if (rval < 0) {
- if (rval != -EBUSY && rval != -EAGAIN)
- pm_runtime_set_active(&client->dev);
- pm_runtime_put(dev);
- return -EAGAIN;
- }
-
- if (sensor->streaming)
- smiapp_stop_streaming(sensor);
-
- /* save state for resume */
- sensor->streaming = streaming;
-
- return 0;
-}
-
-static int __maybe_unused smiapp_resume(struct device *dev)
-{
- struct i2c_client *client = to_i2c_client(dev);
- struct v4l2_subdev *subdev = i2c_get_clientdata(client);
- struct smiapp_sensor *sensor = to_smiapp_sensor(subdev);
- int rval = 0;
-
- pm_runtime_put(dev);
-
- if (sensor->streaming)
- rval = smiapp_start_streaming(sensor);
-
- return rval;
-}
-
-static struct smiapp_hwconfig *smiapp_get_hwconfig(struct device *dev)
-{
- struct smiapp_hwconfig *hwcfg;
- struct v4l2_fwnode_endpoint bus_cfg = { .bus_type = 0 };
- struct fwnode_handle *ep;
- struct fwnode_handle *fwnode = dev_fwnode(dev);
- u32 rotation;
- int i;
- int rval;
-
- if (!fwnode)
- return dev->platform_data;
-
- ep = fwnode_graph_get_next_endpoint(fwnode, NULL);
- if (!ep)
- return NULL;
-
- bus_cfg.bus_type = V4L2_MBUS_CSI2_DPHY;
- rval = v4l2_fwnode_endpoint_alloc_parse(ep, &bus_cfg);
- if (rval == -ENXIO) {
- bus_cfg = (struct v4l2_fwnode_endpoint)
- { .bus_type = V4L2_MBUS_CCP2 };
- rval = v4l2_fwnode_endpoint_alloc_parse(ep, &bus_cfg);
- }
- if (rval)
- goto out_err;
-
- hwcfg = devm_kzalloc(dev, sizeof(*hwcfg), GFP_KERNEL);
- if (!hwcfg)
- goto out_err;
-
- switch (bus_cfg.bus_type) {
- case V4L2_MBUS_CSI2_DPHY:
- hwcfg->csi_signalling_mode = CCS_CSI_SIGNALING_MODE_CSI_2_DPHY;
- hwcfg->lanes = bus_cfg.bus.mipi_csi2.num_data_lanes;
- break;
- case V4L2_MBUS_CCP2:
- hwcfg->csi_signalling_mode = (bus_cfg.bus.mipi_csi1.strobe) ?
- SMIAPP_CSI_SIGNALLING_MODE_CCP2_DATA_STROBE :
- SMIAPP_CSI_SIGNALLING_MODE_CCP2_DATA_CLOCK;
- hwcfg->lanes = 1;
- break;
- default:
- dev_err(dev, "unsupported bus %u\n", bus_cfg.bus_type);
- goto out_err;
- }
-
- dev_dbg(dev, "lanes %u\n", hwcfg->lanes);
-
- rval = fwnode_property_read_u32(fwnode, "rotation", &rotation);
- if (!rval) {
- switch (rotation) {
- case 180:
- hwcfg->module_board_orient =
- SMIAPP_MODULE_BOARD_ORIENT_180;
- fallthrough;
- case 0:
- break;
- default:
- dev_err(dev, "invalid rotation %u\n", rotation);
- goto out_err;
- }
- }
-
- rval = fwnode_property_read_u32(dev_fwnode(dev), "clock-frequency",
- &hwcfg->ext_clk);
- if (rval)
- dev_info(dev, "can't get clock-frequency\n");
-
- dev_dbg(dev, "clk %d, mode %d\n", hwcfg->ext_clk,
- hwcfg->csi_signalling_mode);
-
- if (!bus_cfg.nr_of_link_frequencies) {
- dev_warn(dev, "no link frequencies defined\n");
- goto out_err;
- }
-
- hwcfg->op_sys_clock = devm_kcalloc(
- dev, bus_cfg.nr_of_link_frequencies + 1 /* guardian */,
- sizeof(*hwcfg->op_sys_clock), GFP_KERNEL);
- if (!hwcfg->op_sys_clock)
- goto out_err;
-
- for (i = 0; i < bus_cfg.nr_of_link_frequencies; i++) {
- hwcfg->op_sys_clock[i] = bus_cfg.link_frequencies[i];
- dev_dbg(dev, "freq %d: %lld\n", i, hwcfg->op_sys_clock[i]);
- }
-
- v4l2_fwnode_endpoint_free(&bus_cfg);
- fwnode_handle_put(ep);
- return hwcfg;
-
-out_err:
- v4l2_fwnode_endpoint_free(&bus_cfg);
- fwnode_handle_put(ep);
- return NULL;
-}
-
-static int smiapp_probe(struct i2c_client *client)
-{
- struct smiapp_sensor *sensor;
- struct smiapp_hwconfig *hwcfg = smiapp_get_hwconfig(&client->dev);
- unsigned int i;
- int rval;
-
- if (hwcfg == NULL)
- return -ENODEV;
-
- sensor = devm_kzalloc(&client->dev, sizeof(*sensor), GFP_KERNEL);
- if (sensor == NULL)
- return -ENOMEM;
-
- sensor->hwcfg = hwcfg;
- sensor->src = &sensor->ssds[sensor->ssds_used];
-
- v4l2_i2c_subdev_init(&sensor->src->sd, client, &smiapp_ops);
- sensor->src->sd.internal_ops = &smiapp_internal_src_ops;
-
- sensor->vana = devm_regulator_get(&client->dev, "vana");
- if (IS_ERR(sensor->vana)) {
- dev_err(&client->dev, "could not get regulator for vana\n");
- return PTR_ERR(sensor->vana);
- }
-
- sensor->ext_clk = devm_clk_get(&client->dev, NULL);
- if (PTR_ERR(sensor->ext_clk) == -ENOENT) {
- dev_info(&client->dev, "no clock defined, continuing...\n");
- sensor->ext_clk = NULL;
- } else if (IS_ERR(sensor->ext_clk)) {
- dev_err(&client->dev, "could not get clock (%ld)\n",
- PTR_ERR(sensor->ext_clk));
- return -EPROBE_DEFER;
- }
-
- if (sensor->ext_clk) {
- if (sensor->hwcfg->ext_clk) {
- unsigned long rate;
-
- rval = clk_set_rate(sensor->ext_clk,
- sensor->hwcfg->ext_clk);
- if (rval < 0) {
- dev_err(&client->dev,
- "unable to set clock freq to %u\n",
- sensor->hwcfg->ext_clk);
- return rval;
- }
-
- rate = clk_get_rate(sensor->ext_clk);
- if (rate != sensor->hwcfg->ext_clk) {
- dev_err(&client->dev,
- "can't set clock freq, asked for %u but got %lu\n",
- sensor->hwcfg->ext_clk, rate);
- return rval;
- }
- } else {
- sensor->hwcfg->ext_clk = clk_get_rate(sensor->ext_clk);
- dev_dbg(&client->dev, "obtained clock freq %u\n",
- sensor->hwcfg->ext_clk);
- }
- } else if (sensor->hwcfg->ext_clk) {
- dev_dbg(&client->dev, "assuming clock freq %u\n",
- sensor->hwcfg->ext_clk);
- } else {
- dev_err(&client->dev, "unable to obtain clock freq\n");
- return -EINVAL;
- }
-
- sensor->xshutdown = devm_gpiod_get_optional(&client->dev, "xshutdown",
- GPIOD_OUT_LOW);
- if (IS_ERR(sensor->xshutdown))
- return PTR_ERR(sensor->xshutdown);
-
- rval = smiapp_power_on(&client->dev);
- if (rval < 0)
- return rval;
-
- mutex_init(&sensor->mutex);
-
- rval = smiapp_identify_module(sensor);
- if (rval) {
- rval = -ENODEV;
- goto out_power_off;
- }
-
- rval = ccs_read_all_limits(sensor);
- if (rval)
- goto out_power_off;
-
- rval = smiapp_read_frame_fmt(sensor);
- if (rval) {
- rval = -ENODEV;
- goto out_free_ccs_limits;
- }
-
- /*
- * Handle Sensor Module orientation on the board.
- *
- * The application of H-FLIP and V-FLIP on the sensor is modified by
- * the sensor orientation on the board.
- *
- * For SMIAPP_BOARD_SENSOR_ORIENT_180 the default behaviour is to set
- * both H-FLIP and V-FLIP for normal operation which also implies
- * that a set/unset operation for user space HFLIP and VFLIP v4l2
- * controls will need to be internally inverted.
- *
- * Rotation also changes the bayer pattern.
- */
- if (sensor->hwcfg->module_board_orient ==
- SMIAPP_MODULE_BOARD_ORIENT_180)
- sensor->hvflip_inv_mask =
- CCS_IMAGE_ORIENTATION_HORIZONTAL_MIRROR |
- CCS_IMAGE_ORIENTATION_VERTICAL_FLIP;
-
- rval = smiapp_call_quirk(sensor, limits);
- if (rval) {
- dev_err(&client->dev, "limits quirks failed\n");
- goto out_free_ccs_limits;
- }
-
- if (CCS_LIM(sensor, BINNING_CAPABILITY)) {
- sensor->nbinning_subtypes =
- min_t(u8, CCS_LIM(sensor, BINNING_SUB_TYPES),
- CCS_LIM_BINNING_SUB_TYPE_MAX_N);
-
- for (i = 0; i < sensor->nbinning_subtypes; i++) {
- sensor->binning_subtypes[i].horizontal =
- CCS_LIM_AT(sensor, BINNING_SUB_TYPE, i) >>
- CCS_BINNING_SUB_TYPE_COLUMN_SHIFT;
- sensor->binning_subtypes[i].vertical =
- CCS_LIM_AT(sensor, BINNING_SUB_TYPE, i) &
- CCS_BINNING_SUB_TYPE_ROW_MASK;
-
- dev_dbg(&client->dev, "binning %xx%x\n",
- sensor->binning_subtypes[i].horizontal,
- sensor->binning_subtypes[i].vertical);
- }
- }
- sensor->binning_horizontal = 1;
- sensor->binning_vertical = 1;
-
- if (device_create_file(&client->dev, &dev_attr_ident) != 0) {
- dev_err(&client->dev, "sysfs ident entry creation failed\n");
- rval = -ENOENT;
- goto out_free_ccs_limits;
- }
-
- if (sensor->minfo.smiapp_version &&
- CCS_LIM(sensor, DATA_TRANSFER_IF_CAPABILITY) &
- CCS_DATA_TRANSFER_IF_CAPABILITY_SUPPORTED) {
- if (device_create_file(&client->dev, &dev_attr_nvm) != 0) {
- dev_err(&client->dev, "sysfs nvm entry failed\n");
- rval = -EBUSY;
- goto out_cleanup;
- }
- }
-
- /* We consider this as profile 0 sensor if any of these are zero. */
- if (!CCS_LIM(sensor, MIN_OP_SYS_CLK_DIV) ||
- !CCS_LIM(sensor, MAX_OP_SYS_CLK_DIV) ||
- !CCS_LIM(sensor, MIN_OP_PIX_CLK_DIV) ||
- !CCS_LIM(sensor, MAX_OP_PIX_CLK_DIV)) {
- sensor->minfo.smiapp_profile = SMIAPP_PROFILE_0;
- } else if (CCS_LIM(sensor, SCALING_CAPABILITY)
- != CCS_SCALING_CAPABILITY_NONE) {
- if (CCS_LIM(sensor, SCALING_CAPABILITY)
- == CCS_SCALING_CAPABILITY_HORIZONTAL)
- sensor->minfo.smiapp_profile = SMIAPP_PROFILE_1;
- else
- sensor->minfo.smiapp_profile = SMIAPP_PROFILE_2;
- sensor->scaler = &sensor->ssds[sensor->ssds_used];
- sensor->ssds_used++;
- } else if (CCS_LIM(sensor, DIGITAL_CROP_CAPABILITY)
- == CCS_DIGITAL_CROP_CAPABILITY_INPUT_CROP) {
- sensor->scaler = &sensor->ssds[sensor->ssds_used];
- sensor->ssds_used++;
- }
- sensor->binner = &sensor->ssds[sensor->ssds_used];
- sensor->ssds_used++;
- sensor->pixel_array = &sensor->ssds[sensor->ssds_used];
- sensor->ssds_used++;
-
- sensor->scale_m = CCS_LIM(sensor, SCALER_N_MIN);
-
- /* prepare PLL configuration input values */
- sensor->pll.bus_type = SMIAPP_PLL_BUS_TYPE_CSI2;
- sensor->pll.csi2.lanes = sensor->hwcfg->lanes;
- sensor->pll.ext_clk_freq_hz = sensor->hwcfg->ext_clk;
- sensor->pll.scale_n = CCS_LIM(sensor, SCALER_N_MIN);
- /* Profile 0 sensors have no separate OP clock branch. */
- if (sensor->minfo.smiapp_profile == SMIAPP_PROFILE_0)
- sensor->pll.flags |= SMIAPP_PLL_FLAG_NO_OP_CLOCKS;
-
- smiapp_create_subdev(sensor, sensor->scaler, " scaler", 2);
- smiapp_create_subdev(sensor, sensor->binner, " binner", 2);
- smiapp_create_subdev(sensor, sensor->pixel_array, " pixel_array", 1);
-
- dev_dbg(&client->dev, "profile %d\n", sensor->minfo.smiapp_profile);
-
- sensor->pixel_array->sd.entity.function = MEDIA_ENT_F_CAM_SENSOR;
-
- rval = smiapp_init_controls(sensor);
- if (rval < 0)
- goto out_cleanup;
-
- rval = smiapp_call_quirk(sensor, init);
- if (rval)
- goto out_cleanup;
-
- rval = smiapp_get_mbus_formats(sensor);
- if (rval) {
- rval = -ENODEV;
- goto out_cleanup;
- }
-
- rval = smiapp_init_late_controls(sensor);
- if (rval) {
- rval = -ENODEV;
- goto out_cleanup;
- }
-
- mutex_lock(&sensor->mutex);
- rval = smiapp_pll_blanking_update(sensor);
- mutex_unlock(&sensor->mutex);
- if (rval) {
- dev_err(&client->dev, "update mode failed\n");
- goto out_cleanup;
- }
-
- sensor->streaming = false;
- sensor->dev_init_done = true;
-
- rval = media_entity_pads_init(&sensor->src->sd.entity, 2,
- sensor->src->pads);
- if (rval < 0)
- goto out_media_entity_cleanup;
-
- pm_runtime_set_active(&client->dev);
- pm_runtime_get_noresume(&client->dev);
- pm_runtime_enable(&client->dev);
-
- rval = v4l2_async_register_subdev_sensor_common(&sensor->src->sd);
- if (rval < 0)
- goto out_disable_runtime_pm;
-
- pm_runtime_set_autosuspend_delay(&client->dev, 1000);
- pm_runtime_use_autosuspend(&client->dev);
- pm_runtime_put_autosuspend(&client->dev);
-
- return 0;
-
-out_disable_runtime_pm:
- pm_runtime_put_noidle(&client->dev);
- pm_runtime_disable(&client->dev);
-
-out_media_entity_cleanup:
- media_entity_cleanup(&sensor->src->sd.entity);
-
-out_cleanup:
- smiapp_cleanup(sensor);
-
-out_free_ccs_limits:
- kfree(sensor->ccs_limits);
-
-out_power_off:
- smiapp_power_off(&client->dev);
- mutex_destroy(&sensor->mutex);
-
- return rval;
-}
-
-static int smiapp_remove(struct i2c_client *client)
-{
- struct v4l2_subdev *subdev = i2c_get_clientdata(client);
- struct smiapp_sensor *sensor = to_smiapp_sensor(subdev);
- unsigned int i;
-
- v4l2_async_unregister_subdev(subdev);
-
- pm_runtime_disable(&client->dev);
- if (!pm_runtime_status_suspended(&client->dev))
- smiapp_power_off(&client->dev);
- pm_runtime_set_suspended(&client->dev);
-
- for (i = 0; i < sensor->ssds_used; i++) {
- v4l2_device_unregister_subdev(&sensor->ssds[i].sd);
- media_entity_cleanup(&sensor->ssds[i].sd.entity);
- }
- smiapp_cleanup(sensor);
- mutex_destroy(&sensor->mutex);
- kfree(sensor->ccs_limits);
-
- return 0;
-}
-
-static const struct of_device_id smiapp_of_table[] = {
- { .compatible = "nokia,smia" },
- { },
-};
-MODULE_DEVICE_TABLE(of, smiapp_of_table);
-
-static const struct i2c_device_id smiapp_id_table[] = {
- { SMIAPP_NAME, 0 },
- { },
-};
-MODULE_DEVICE_TABLE(i2c, smiapp_id_table);
-
-static const struct dev_pm_ops smiapp_pm_ops = {
- SET_SYSTEM_SLEEP_PM_OPS(smiapp_suspend, smiapp_resume)
- SET_RUNTIME_PM_OPS(smiapp_power_off, smiapp_power_on, NULL)
-};
-
-static struct i2c_driver smiapp_i2c_driver = {
- .driver = {
- .of_match_table = smiapp_of_table,
- .name = SMIAPP_NAME,
- .pm = &smiapp_pm_ops,
- },
- .probe_new = smiapp_probe,
- .remove = smiapp_remove,
- .id_table = smiapp_id_table,
-};
-
-static int smiapp_module_init(void)
-{
- unsigned int i, l;
-
- for (i = 0, l = 0; ccs_limits[i].size && l < CCS_L_LAST; i++) {
- if (!(ccs_limits[i].flags & CCS_L_FL_SAME_REG)) {
- ccs_limit_offsets[l + 1].lim =
- ALIGN(ccs_limit_offsets[l].lim +
- ccs_limits[i].size,
- ccs_reg_width(ccs_limits[i + 1].reg));
- ccs_limit_offsets[l].info = i;
- l++;
- } else {
- ccs_limit_offsets[l].lim += ccs_limits[i].size;
- }
- }
-
- if (WARN_ON(ccs_limits[i].size))
- return -EINVAL;
-
- if (WARN_ON(l != CCS_L_LAST))
- return -EINVAL;
-
- return i2c_register_driver(THIS_MODULE, &smiapp_i2c_driver);
-}
-
-static void smiapp_module_cleanup(void)
-{
- i2c_del_driver(&smiapp_i2c_driver);
-}
-
-module_init(smiapp_module_init);
-module_exit(smiapp_module_cleanup);
-
-MODULE_AUTHOR("Sakari Ailus <sakari.ailus@iki.fi>");
-MODULE_DESCRIPTION("Generic SMIA/SMIA++ camera module driver");
-MODULE_LICENSE("GPL v2");
+++ /dev/null
-// SPDX-License-Identifier: GPL-2.0-only
-/*
- * drivers/media/i2c/smiapp/smiapp-quirk.c
- *
- * Generic driver for SMIA/SMIA++ compliant camera modules
- *
- * Copyright (C) 2011--2012 Nokia Corporation
- * Contact: Sakari Ailus <sakari.ailus@iki.fi>
- */
-
-#include <linux/delay.h>
-
-#include "ccs-limits.h"
-
-#include "smiapp.h"
-
-static int ccs_write_addr_8s(struct smiapp_sensor *sensor,
- const struct smiapp_reg_8 *regs, int len)
-{
- struct i2c_client *client = v4l2_get_subdevdata(&sensor->src->sd);
- int rval;
-
- for (; len > 0; len--, regs++) {
- rval = ccs_write_addr(sensor, regs->reg, regs->val);
- if (rval < 0) {
- dev_err(&client->dev,
- "error %d writing reg 0x%4.4x, val 0x%2.2x",
- rval, regs->reg, regs->val);
- return rval;
- }
- }
-
- return 0;
-}
-
-static int jt8ew9_limits(struct smiapp_sensor *sensor)
-{
- if (sensor->minfo.revision_number_major < 0x03)
- sensor->frame_skip = 1;
-
- /* Below 24 gain doesn't have effect at all, */
- /* but ~59 is needed for full dynamic range */
- ccs_replace_limit(sensor, CCS_L_ANALOG_GAIN_CODE_MIN, 0, 59);
- ccs_replace_limit(sensor, CCS_L_ANALOG_GAIN_CODE_MAX, 0, 6000);
-
- return 0;
-}
-
-static int jt8ew9_post_poweron(struct smiapp_sensor *sensor)
-{
- static const struct smiapp_reg_8 regs[] = {
- { 0x30a3, 0xd8 }, /* Output port control : LVDS ports only */
- { 0x30ae, 0x00 }, /* 0x0307 pll_multiplier maximum value on PLL input 9.6MHz ( 19.2MHz is divided on pre_pll_div) */
- { 0x30af, 0xd0 }, /* 0x0307 pll_multiplier maximum value on PLL input 9.6MHz ( 19.2MHz is divided on pre_pll_div) */
- { 0x322d, 0x04 }, /* Adjusting Processing Image Size to Scaler Toshiba Recommendation Setting */
- { 0x3255, 0x0f }, /* Horizontal Noise Reduction Control Toshiba Recommendation Setting */
- { 0x3256, 0x15 }, /* Horizontal Noise Reduction Control Toshiba Recommendation Setting */
- { 0x3258, 0x70 }, /* Analog Gain Control Toshiba Recommendation Setting */
- { 0x3259, 0x70 }, /* Analog Gain Control Toshiba Recommendation Setting */
- { 0x325f, 0x7c }, /* Analog Gain Control Toshiba Recommendation Setting */
- { 0x3302, 0x06 }, /* Pixel Reference Voltage Control Toshiba Recommendation Setting */
- { 0x3304, 0x00 }, /* Pixel Reference Voltage Control Toshiba Recommendation Setting */
- { 0x3307, 0x22 }, /* Pixel Reference Voltage Control Toshiba Recommendation Setting */
- { 0x3308, 0x8d }, /* Pixel Reference Voltage Control Toshiba Recommendation Setting */
- { 0x331e, 0x0f }, /* Black Hole Sun Correction Control Toshiba Recommendation Setting */
- { 0x3320, 0x30 }, /* Black Hole Sun Correction Control Toshiba Recommendation Setting */
- { 0x3321, 0x11 }, /* Black Hole Sun Correction Control Toshiba Recommendation Setting */
- { 0x3322, 0x98 }, /* Black Hole Sun Correction Control Toshiba Recommendation Setting */
- { 0x3323, 0x64 }, /* Black Hole Sun Correction Control Toshiba Recommendation Setting */
- { 0x3325, 0x83 }, /* Read Out Timing Control Toshiba Recommendation Setting */
- { 0x3330, 0x18 }, /* Read Out Timing Control Toshiba Recommendation Setting */
- { 0x333c, 0x01 }, /* Read Out Timing Control Toshiba Recommendation Setting */
- { 0x3345, 0x2f }, /* Black Hole Sun Correction Control Toshiba Recommendation Setting */
- { 0x33de, 0x38 }, /* Horizontal Noise Reduction Control Toshiba Recommendation Setting */
- /* Taken from v03. No idea what the rest are. */
- { 0x32e0, 0x05 },
- { 0x32e1, 0x05 },
- { 0x32e2, 0x04 },
- { 0x32e5, 0x04 },
- { 0x32e6, 0x04 },
-
- };
-
- return ccs_write_addr_8s(sensor, regs, ARRAY_SIZE(regs));
-}
-
-const struct smiapp_quirk smiapp_jt8ew9_quirk = {
- .limits = jt8ew9_limits,
- .post_poweron = jt8ew9_post_poweron,
-};
-
-static int imx125es_post_poweron(struct smiapp_sensor *sensor)
-{
- /* Taken from v02. No idea what the other two are. */
- static const struct smiapp_reg_8 regs[] = {
- /*
- * 0x3302: clk during frame blanking:
- * 0x00 - HS mode, 0x01 - LP11
- */
- { 0x3302, 0x01 },
- { 0x302d, 0x00 },
- { 0x3b08, 0x8c },
- };
-
- return ccs_write_addr_8s(sensor, regs, ARRAY_SIZE(regs));
-}
-
-const struct smiapp_quirk smiapp_imx125es_quirk = {
- .post_poweron = imx125es_post_poweron,
-};
-
-static int jt8ev1_limits(struct smiapp_sensor *sensor)
-{
- ccs_replace_limit(sensor, CCS_L_X_ADDR_MAX, 0, 4271);
- ccs_replace_limit(sensor, CCS_L_MIN_LINE_BLANKING_PCK_BIN, 0, 184);
-
- return 0;
-}
-
-static int jt8ev1_post_poweron(struct smiapp_sensor *sensor)
-{
- struct i2c_client *client = v4l2_get_subdevdata(&sensor->src->sd);
- int rval;
- static const struct smiapp_reg_8 regs[] = {
- { 0x3031, 0xcd }, /* For digital binning (EQ_MONI) */
- { 0x30a3, 0xd0 }, /* FLASH STROBE enable */
- { 0x3237, 0x00 }, /* For control of pulse timing for ADC */
- { 0x3238, 0x43 },
- { 0x3301, 0x06 }, /* For analog bias for sensor */
- { 0x3302, 0x06 },
- { 0x3304, 0x00 },
- { 0x3305, 0x88 },
- { 0x332a, 0x14 },
- { 0x332c, 0x6b },
- { 0x3336, 0x01 },
- { 0x333f, 0x1f },
- { 0x3355, 0x00 },
- { 0x3356, 0x20 },
- { 0x33bf, 0x20 }, /* Adjust the FBC speed */
- { 0x33c9, 0x20 },
- { 0x33ce, 0x30 }, /* Adjust the parameter for logic function */
- { 0x33cf, 0xec }, /* For Black sun */
- { 0x3328, 0x80 }, /* Ugh. No idea what's this. */
- };
- static const struct smiapp_reg_8 regs_96[] = {
- { 0x30ae, 0x00 }, /* For control of ADC clock */
- { 0x30af, 0xd0 },
- { 0x30b0, 0x01 },
- };
-
- rval = ccs_write_addr_8s(sensor, regs, ARRAY_SIZE(regs));
- if (rval < 0)
- return rval;
-
- switch (sensor->hwcfg->ext_clk) {
- case 9600000:
- return ccs_write_addr_8s(sensor, regs_96,
- ARRAY_SIZE(regs_96));
- default:
- dev_warn(&client->dev, "no MSRs for %d Hz ext_clk\n",
- sensor->hwcfg->ext_clk);
- return 0;
- }
-}
-
-static int jt8ev1_pre_streamon(struct smiapp_sensor *sensor)
-{
- return ccs_write_addr(sensor, 0x3328, 0x00);
-}
-
-static int jt8ev1_post_streamoff(struct smiapp_sensor *sensor)
-{
- int rval;
-
- /* Workaround: allows fast standby to work properly */
- rval = ccs_write_addr(sensor, 0x3205, 0x04);
- if (rval < 0)
- return rval;
-
- /* Wait for 1 ms + one line => 2 ms is likely enough */
- usleep_range(2000, 2050);
-
- /* Restore it */
- rval = ccs_write_addr(sensor, 0x3205, 0x00);
- if (rval < 0)
- return rval;
-
- return ccs_write_addr(sensor, 0x3328, 0x80);
-}
-
-static int jt8ev1_init(struct smiapp_sensor *sensor)
-{
- sensor->pll.flags |= SMIAPP_PLL_FLAG_OP_PIX_CLOCK_PER_LANE;
-
- return 0;
-}
-
-const struct smiapp_quirk smiapp_jt8ev1_quirk = {
- .limits = jt8ev1_limits,
- .post_poweron = jt8ev1_post_poweron,
- .pre_streamon = jt8ev1_pre_streamon,
- .post_streamoff = jt8ev1_post_streamoff,
- .init = jt8ev1_init,
-};
-
-static int tcm8500md_limits(struct smiapp_sensor *sensor)
-{
- ccs_replace_limit(sensor, CCS_L_MIN_PLL_IP_CLK_FREQ_MHZ, 0, 2700000);
-
- return 0;
-}
-
-const struct smiapp_quirk smiapp_tcm8500md_quirk = {
- .limits = tcm8500md_limits,
-};
+++ /dev/null
-/* SPDX-License-Identifier: GPL-2.0-only */
-/*
- * drivers/media/i2c/smiapp/smiapp-quirk.h
- *
- * Generic driver for SMIA/SMIA++ compliant camera modules
- *
- * Copyright (C) 2011--2012 Nokia Corporation
- * Contact: Sakari Ailus <sakari.ailus@iki.fi>
- */
-
-#ifndef __SMIAPP_QUIRK__
-#define __SMIAPP_QUIRK__
-
-struct smiapp_sensor;
-
-/**
- * struct smiapp_quirk - quirks for sensors that deviate from SMIA++ standard
- *
- * @limits: Replace sensor->limits with values which can't be read from
- * sensor registers. Called the first time the sensor is powered up.
- * @post_poweron: Called always after the sensor has been fully powered on.
- * @pre_streamon: Called just before streaming is enabled.
- * @post_streamon: Called right after stopping streaming.
- * @pll_flags: Return flags for the PLL calculator.
- * @init: Quirk initialisation, called the last in probe(). This is
- * also appropriate for adding sensor specific controls, for instance.
- * @reg_access: Register access quirk. The quirk may divert the access
- * to another register, or no register at all.
- *
- * @write: Is this read (false) or write (true) access?
- * @reg: Pointer to the register to access
- * @value: Register value, set by the caller on write, or
- * by the quirk on read
- *
- * @return: 0 on success, -ENOIOCTLCMD if no register
- * access may be done by the caller (default read
- * value is zero), else negative error code on error
- */
-struct smiapp_quirk {
- int (*limits)(struct smiapp_sensor *sensor);
- int (*post_poweron)(struct smiapp_sensor *sensor);
- int (*pre_streamon)(struct smiapp_sensor *sensor);
- int (*post_streamoff)(struct smiapp_sensor *sensor);
- unsigned long (*pll_flags)(struct smiapp_sensor *sensor);
- int (*init)(struct smiapp_sensor *sensor);
- int (*reg_access)(struct smiapp_sensor *sensor, bool write, u32 *reg,
- u32 *val);
- unsigned long flags;
-};
-
-#define SMIAPP_QUIRK_FLAG_8BIT_READ_ONLY (1 << 0)
-
-struct smiapp_reg_8 {
- u16 reg;
- u8 val;
-};
-
-#define SMIAPP_MK_QUIRK_REG_8(_reg, _val) \
- { \
- .reg = (u16)_reg, \
- .val = _val, \
- }
-
-#define smiapp_call_quirk(sensor, _quirk, ...) \
- ((sensor)->minfo.quirk && \
- (sensor)->minfo.quirk->_quirk ? \
- (sensor)->minfo.quirk->_quirk(sensor, ##__VA_ARGS__) : 0)
-
-#define smiapp_needs_quirk(sensor, _quirk) \
- ((sensor)->minfo.quirk ? \
- (sensor)->minfo.quirk->flags & _quirk : 0)
-
-extern const struct smiapp_quirk smiapp_jt8ev1_quirk;
-extern const struct smiapp_quirk smiapp_imx125es_quirk;
-extern const struct smiapp_quirk smiapp_jt8ew9_quirk;
-extern const struct smiapp_quirk smiapp_tcm8500md_quirk;
-
-#endif /* __SMIAPP_QUIRK__ */
+++ /dev/null
-// SPDX-License-Identifier: GPL-2.0-only
-/*
- * drivers/media/i2c/smiapp/smiapp-regs.c
- *
- * Generic driver for SMIA/SMIA++ compliant camera modules
- *
- * Copyright (C) 2011--2012 Nokia Corporation
- * Contact: Sakari Ailus <sakari.ailus@iki.fi>
- */
-
-#include <asm/unaligned.h>
-
-#include <linux/delay.h>
-#include <linux/i2c.h>
-
-#include "smiapp.h"
-#include "smiapp-regs.h"
-
-static uint32_t float_to_u32_mul_1000000(struct i2c_client *client,
- uint32_t phloat)
-{
- int32_t exp;
- uint64_t man;
-
- if (phloat >= 0x80000000) {
- dev_err(&client->dev, "this is a negative number\n");
- return 0;
- }
-
- if (phloat == 0x7f800000)
- return ~0; /* Inf. */
-
- if ((phloat & 0x7f800000) == 0x7f800000) {
- dev_err(&client->dev, "NaN or other special number\n");
- return 0;
- }
-
- /* Valid cases begin here */
- if (phloat == 0)
- return 0; /* Valid zero */
-
- if (phloat > 0x4f800000)
- return ~0; /* larger than 4294967295 */
-
- /*
- * Unbias exponent (note how phloat is now guaranteed to
- * have 0 in the high bit)
- */
- exp = ((int32_t)phloat >> 23) - 127;
-
- /* Extract mantissa, add missing '1' bit and it's in MHz */
- man = ((phloat & 0x7fffff) | 0x800000) * 1000000ULL;
-
- if (exp < 0)
- man >>= -exp;
- else
- man <<= exp;
-
- man >>= 23; /* Remove mantissa bias */
-
- return man & 0xffffffff;
-}
-
-
-/*
- * Read a 8/16/32-bit i2c register. The value is returned in 'val'.
- * Returns zero if successful, or non-zero otherwise.
- */
-static int ____ccs_read_addr(struct smiapp_sensor *sensor, u16 reg, u16 len,
- u32 *val)
-{
- struct i2c_client *client = v4l2_get_subdevdata(&sensor->src->sd);
- struct i2c_msg msg;
- unsigned char data_buf[sizeof(u32)] = { 0 };
- unsigned char offset_buf[sizeof(u16)];
- int r;
-
- if (len > sizeof(data_buf))
- return -EINVAL;
-
- msg.addr = client->addr;
- msg.flags = 0;
- msg.len = sizeof(offset_buf);
- msg.buf = offset_buf;
- put_unaligned_be16(reg, offset_buf);
-
- r = i2c_transfer(client->adapter, &msg, 1);
- if (r != 1) {
- if (r >= 0)
- r = -EBUSY;
- goto err;
- }
-
- msg.len = len;
- msg.flags = I2C_M_RD;
- msg.buf = &data_buf[sizeof(data_buf) - len];
-
- r = i2c_transfer(client->adapter, &msg, 1);
- if (r != 1) {
- if (r >= 0)
- r = -EBUSY;
- goto err;
- }
-
- *val = get_unaligned_be32(data_buf);
-
- return 0;
-
-err:
- dev_err(&client->dev, "read from offset 0x%x error %d\n", reg, r);
-
- return r;
-}
-
-/* Read a register using 8-bit access only. */
-static int ____ccs_read_addr_8only(struct smiapp_sensor *sensor, u16 reg,
- u16 len, u32 *val)
-{
- unsigned int i;
- int rval;
-
- *val = 0;
-
- for (i = 0; i < len; i++) {
- u32 val8;
-
- rval = ____ccs_read_addr(sensor, reg + i, 1, &val8);
- if (rval < 0)
- return rval;
- *val |= val8 << ((len - i - 1) << 3);
- }
-
- return 0;
-}
-
-unsigned int ccs_reg_width(u32 reg)
-{
- if (reg & CCS_FL_16BIT)
- return sizeof(uint16_t);
- if (reg & CCS_FL_32BIT)
- return sizeof(uint32_t);
-
- return sizeof(uint8_t);
-}
-
-/*
- * Read a 8/16/32-bit i2c register. The value is returned in 'val'.
- * Returns zero if successful, or non-zero otherwise.
- */
-static int __ccs_read_addr(struct smiapp_sensor *sensor, u32 reg, u32 *val,
- bool only8)
-{
- struct i2c_client *client = v4l2_get_subdevdata(&sensor->src->sd);
- unsigned int len = ccs_reg_width(reg);
- int rval;
-
- if (!only8)
- rval = ____ccs_read_addr(sensor, SMIAPP_REG_ADDR(reg), len,
- val);
- else
- rval = ____ccs_read_addr_8only(sensor, SMIAPP_REG_ADDR(reg),
- len, val);
- if (rval < 0)
- return rval;
-
- if (reg & CCS_FL_FLOAT_IREAL)
- *val = float_to_u32_mul_1000000(client, *val);
-
- return 0;
-}
-
-int ccs_read_addr_no_quirk(struct smiapp_sensor *sensor, u32 reg, u32 *val)
-{
- return __ccs_read_addr(
- sensor, reg, val,
- smiapp_needs_quirk(sensor,
- SMIAPP_QUIRK_FLAG_8BIT_READ_ONLY));
-}
-
-static int ccs_read_addr_quirk(struct smiapp_sensor *sensor, u32 reg, u32 *val,
- bool force8)
-{
- int rval;
-
- *val = 0;
- rval = smiapp_call_quirk(sensor, reg_access, false, ®, val);
- if (rval == -ENOIOCTLCMD)
- return 0;
- if (rval < 0)
- return rval;
-
- if (force8)
- return __ccs_read_addr(sensor, reg, val, true);
-
- return ccs_read_addr_no_quirk(sensor, reg, val);
-}
-
-int ccs_read_addr(struct smiapp_sensor *sensor, u32 reg, u32 *val)
-{
- return ccs_read_addr_quirk(sensor, reg, val, false);
-}
-
-int ccs_read_addr_8only(struct smiapp_sensor *sensor, u32 reg, u32 *val)
-{
- return ccs_read_addr_quirk(sensor, reg, val, true);
-}
-
-int ccs_write_addr_no_quirk(struct smiapp_sensor *sensor, u32 reg, u32 val)
-{
- struct i2c_client *client = v4l2_get_subdevdata(&sensor->src->sd);
- struct i2c_msg msg;
- unsigned char data[6];
- unsigned int retries;
- unsigned int len = ccs_reg_width(reg);
- int r;
-
- if (len > sizeof(data) - 2)
- return -EINVAL;
-
- msg.addr = client->addr;
- msg.flags = 0; /* Write */
- msg.len = 2 + len;
- msg.buf = data;
-
- put_unaligned_be16(SMIAPP_REG_ADDR(reg), data);
- put_unaligned_be32(val << (8 * (sizeof(val) - len)), data + 2);
-
- for (retries = 0; retries < 5; retries++) {
- /*
- * Due to unknown reason sensor stops responding. This
- * loop is a temporaty solution until the root cause
- * is found.
- */
- r = i2c_transfer(client->adapter, &msg, 1);
- if (r == 1) {
- if (retries)
- dev_err(&client->dev,
- "sensor i2c stall encountered. retries: %d\n",
- retries);
- return 0;
- }
-
- usleep_range(2000, 2000);
- }
-
- dev_err(&client->dev,
- "wrote 0x%x to offset 0x%x error %d\n", val,
- SMIAPP_REG_ADDR(reg), r);
-
- return r;
-}
-
-/*
- * Write to a 8/16-bit register.
- * Returns zero if successful, or non-zero otherwise.
- */
-int ccs_write_addr(struct smiapp_sensor *sensor, u32 reg, u32 val)
-{
- int rval;
-
- rval = smiapp_call_quirk(sensor, reg_access, true, ®, &val);
- if (rval == -ENOIOCTLCMD)
- return 0;
- if (rval < 0)
- return rval;
-
- return ccs_write_addr_no_quirk(sensor, reg, val);
-}
+++ /dev/null
-/* SPDX-License-Identifier: GPL-2.0-only */
-/*
- * include/media/smiapp/smiapp-regs.h
- *
- * Generic driver for SMIA/SMIA++ compliant camera modules
- *
- * Copyright (C) 2011--2012 Nokia Corporation
- * Contact: Sakari Ailus <sakari.ailus@iki.fi>
- */
-
-#ifndef SMIAPP_REGS_H
-#define SMIAPP_REGS_H
-
-#include <linux/i2c.h>
-#include <linux/types.h>
-
-#include "ccs-regs.h"
-
-#define SMIAPP_REG_ADDR(reg) ((u16)reg)
-
-struct smiapp_sensor;
-
-int ccs_read_addr_no_quirk(struct smiapp_sensor *sensor, u32 reg, u32 *val);
-int ccs_read_addr(struct smiapp_sensor *sensor, u32 reg, u32 *val);
-int ccs_read_addr_8only(struct smiapp_sensor *sensor, u32 reg, u32 *val);
-int ccs_write_addr_no_quirk(struct smiapp_sensor *sensor, u32 reg, u32 val);
-int ccs_write_addr(struct smiapp_sensor *sensor, u32 reg, u32 val);
-
-unsigned int ccs_reg_width(u32 reg);
-
-#define ccs_read(sensor, reg_name, val) \
- ccs_read_addr(sensor, CCS_R_##reg_name, val)
-
-#define ccs_write(sensor, reg_name, val) \
- ccs_write_addr(sensor, CCS_R_##reg_name, val)
-
-#endif
+++ /dev/null
-/* SPDX-License-Identifier: GPL-2.0-only */
-/*
- * drivers/media/i2c/smiapp/smiapp.h
- *
- * Generic driver for SMIA/SMIA++ compliant camera modules
- *
- * Copyright (C) 2010--2012 Nokia Corporation
- * Contact: Sakari Ailus <sakari.ailus@iki.fi>
- */
-
-#ifndef __SMIAPP_PRIV_H_
-#define __SMIAPP_PRIV_H_
-
-#include <linux/mutex.h>
-#include <media/v4l2-ctrls.h>
-#include <media/v4l2-subdev.h>
-
-#include "ccs-regs.h"
-
-#include "smiapp-pll.h"
-#include "smiapp-reg-defs.h"
-#include "smiapp-regs.h"
-#include "smiapp-quirk.h"
-
-/*
- * Standard SMIA++ constants
- */
-#define SMIA_VERSION_1 10
-#define SMIAPP_VERSION_0_8 8 /* Draft 0.8 */
-#define SMIAPP_VERSION_0_9 9 /* Draft 0.9 */
-#define SMIAPP_VERSION_1 10
-
-#define SMIAPP_PROFILE_0 0
-#define SMIAPP_PROFILE_1 1
-#define SMIAPP_PROFILE_2 2
-
-#define SMIAPP_NVM_PAGE_SIZE 64 /* bytes */
-
-#define SMIAPP_RESET_DELAY_CLOCKS 2400
-#define SMIAPP_RESET_DELAY(clk) \
- (1000 + (SMIAPP_RESET_DELAY_CLOCKS * 1000 \
- + (clk) / 1000 - 1) / ((clk) / 1000))
-
-#define SMIAPP_COLOUR_COMPONENTS 4
-
-#define SMIAPP_NAME "smiapp"
-
-#define SMIAPP_DFL_I2C_ADDR (0x20 >> 1) /* Default I2C Address */
-#define SMIAPP_ALT_I2C_ADDR (0x6e >> 1) /* Alternate I2C Address */
-
-/*
- * Sometimes due to board layout considerations the camera module can be
- * mounted rotated. The typical rotation used is 180 degrees which can be
- * corrected by giving a default H-FLIP and V-FLIP in the sensor readout.
- * FIXME: rotation also changes the bayer pattern.
- */
-enum smiapp_module_board_orient {
- SMIAPP_MODULE_BOARD_ORIENT_0 = 0,
- SMIAPP_MODULE_BOARD_ORIENT_180,
-};
-
-struct smiapp_flash_strobe_parms {
- u8 mode;
- u32 strobe_width_high_us;
- u16 strobe_delay;
- u16 stobe_start_point;
- u8 trigger;
-};
-
-struct smiapp_hwconfig {
- /*
- * Change the cci address if i2c_addr_alt is set.
- * Both default and alternate cci addr need to be present
- */
- unsigned short i2c_addr_dfl; /* Default i2c addr */
- unsigned short i2c_addr_alt; /* Alternate i2c addr */
-
- uint32_t ext_clk; /* sensor external clk */
-
- unsigned int lanes; /* Number of CSI-2 lanes */
- uint32_t csi_signalling_mode; /* SMIAPP_CSI_SIGNALLING_MODE_* */
- uint64_t *op_sys_clock;
-
- enum smiapp_module_board_orient module_board_orient;
-
- struct smiapp_flash_strobe_parms *strobe_setup;
-};
-
-struct smiapp_quirk;
-
-#define SMIAPP_MODULE_IDENT_FLAG_REV_LE (1 << 0)
-
-struct smiapp_module_ident {
- u16 mipi_manufacturer_id;
- u16 model_id;
- u8 smia_manufacturer_id;
- u8 revision_number_major;
-
- u8 flags;
-
- char *name;
- const struct smiapp_quirk *quirk;
-};
-
-struct smiapp_module_info {
- u32 smia_manufacturer_id;
- u32 mipi_manufacturer_id;
- u32 model_id;
- u32 revision_number_major;
- u32 revision_number_minor;
-
- u32 module_year;
- u32 module_month;
- u32 module_day;
-
- u32 sensor_smia_manufacturer_id;
- u32 sensor_mipi_manufacturer_id;
- u32 sensor_model_id;
- u32 sensor_revision_number;
- u32 sensor_firmware_version;
-
- u32 smia_version;
- u32 smiapp_version;
- u32 ccs_version;
-
- u32 smiapp_profile;
-
- char *name;
- const struct smiapp_quirk *quirk;
-};
-
-#define SMIAPP_IDENT_FQ(manufacturer, model, rev, fl, _name, _quirk) \
- { .smia_manufacturer_id = manufacturer, \
- .model_id = model, \
- .revision_number_major = rev, \
- .flags = fl, \
- .name = _name, \
- .quirk = _quirk, }
-
-#define SMIAPP_IDENT_LQ(manufacturer, model, rev, _name, _quirk) \
- { .smia_manufacturer_id = manufacturer, \
- .model_id = model, \
- .revision_number_major = rev, \
- .flags = SMIAPP_MODULE_IDENT_FLAG_REV_LE, \
- .name = _name, \
- .quirk = _quirk, }
-
-#define SMIAPP_IDENT_L(manufacturer, model, rev, _name) \
- { .smia_manufacturer_id = manufacturer, \
- .model_id = model, \
- .revision_number_major = rev, \
- .flags = SMIAPP_MODULE_IDENT_FLAG_REV_LE, \
- .name = _name, }
-
-#define SMIAPP_IDENT_Q(manufacturer, model, rev, _name, _quirk) \
- { .smia_manufacturer_id = manufacturer, \
- .model_id = model, \
- .revision_number_major = rev, \
- .flags = 0, \
- .name = _name, \
- .quirk = _quirk, }
-
-#define SMIAPP_IDENT(manufacturer, model, rev, _name) \
- { .smia_manufacturer_id = manufacturer, \
- .model_id = model, \
- .revision_number_major = rev, \
- .flags = 0, \
- .name = _name, }
-
-struct smiapp_csi_data_format {
- u32 code;
- u8 width;
- u8 compressed;
- u8 pixel_order;
-};
-
-#define SMIAPP_SUBDEVS 3
-
-#define SMIAPP_PA_PAD_SRC 0
-#define SMIAPP_PAD_SINK 0
-#define SMIAPP_PAD_SRC 1
-#define SMIAPP_PADS 2
-
-struct smiapp_binning_subtype {
- u8 horizontal:4;
- u8 vertical:4;
-} __packed;
-
-struct smiapp_subdev {
- struct v4l2_subdev sd;
- struct media_pad pads[SMIAPP_PADS];
- struct v4l2_rect sink_fmt;
- struct v4l2_rect crop[SMIAPP_PADS];
- struct v4l2_rect compose; /* compose on sink */
- unsigned short sink_pad;
- unsigned short source_pad;
- int npads;
- struct smiapp_sensor *sensor;
- struct v4l2_ctrl_handler ctrl_handler;
-};
-
-/*
- * struct smiapp_sensor - Main device structure
- */
-struct smiapp_sensor {
- /*
- * "mutex" is used to serialise access to all fields here
- * except v4l2_ctrls at the end of the struct. "mutex" is also
- * used to serialise access to file handle specific
- * information.
- */
- struct mutex mutex;
- struct smiapp_subdev ssds[SMIAPP_SUBDEVS];
- u32 ssds_used;
- struct smiapp_subdev *src;
- struct smiapp_subdev *binner;
- struct smiapp_subdev *scaler;
- struct smiapp_subdev *pixel_array;
- struct smiapp_hwconfig *hwcfg;
- struct regulator *vana;
- struct clk *ext_clk;
- struct gpio_desc *xshutdown;
- void *ccs_limits;
- u8 nbinning_subtypes;
- struct smiapp_binning_subtype binning_subtypes[CCS_LIM_BINNING_SUB_TYPE_MAX_N + 1];
- u32 mbus_frame_fmts;
- const struct smiapp_csi_data_format *csi_format;
- const struct smiapp_csi_data_format *internal_csi_format;
- u32 default_mbus_frame_fmts;
- int default_pixel_order;
-
- u8 binning_horizontal;
- u8 binning_vertical;
-
- u8 scale_m;
- u8 scaling_mode;
-
- u8 hvflip_inv_mask; /* H/VFLIP inversion due to sensor orientation */
- u8 frame_skip;
- u16 embedded_start; /* embedded data start line */
- u16 embedded_end;
- u16 image_start; /* image data start line */
- u16 visible_pixel_start; /* start pixel of the visible image */
-
- bool streaming;
- bool dev_init_done;
- u8 compressed_min_bpp;
-
- struct smiapp_module_info minfo;
-
- struct smiapp_pll pll;
-
- /* Is a default format supported for a given BPP? */
- unsigned long *valid_link_freqs;
-
- /* Pixel array controls */
- struct v4l2_ctrl *analog_gain;
- struct v4l2_ctrl *exposure;
- struct v4l2_ctrl *hflip;
- struct v4l2_ctrl *vflip;
- struct v4l2_ctrl *vblank;
- struct v4l2_ctrl *hblank;
- struct v4l2_ctrl *pixel_rate_parray;
- /* src controls */
- struct v4l2_ctrl *link_freq;
- struct v4l2_ctrl *pixel_rate_csi;
- /* test pattern colour components */
- struct v4l2_ctrl *test_data[SMIAPP_COLOUR_COMPONENTS];
-};
-
-#define to_smiapp_subdev(_sd) \
- container_of(_sd, struct smiapp_subdev, sd)
-
-#define to_smiapp_sensor(_sd) \
- (to_smiapp_subdev(_sd)->sensor)
-
-void ccs_replace_limit(struct smiapp_sensor *sensor,
- unsigned int limit, unsigned int offset, u32 val);
-
-#endif /* __SMIAPP_PRIV_H_ */
projects / mirror_ubuntu-jammy-kernel.git / commitdiff