+++ /dev/null
-// SPDX-License-Identifier: GPL-2.0
-// Copyright (c) 2022 Intel Corporation.
-
-#include <asm/unaligned.h>
-#include <linux/acpi.h>
-#include <linux/delay.h>
-#include <linux/i2c.h>
-#include <linux/module.h>
-#include <linux/pm_runtime.h>
-#include <linux/version.h>
-#include <media/v4l2-ctrls.h>
-#include <media/v4l2-device.h>
-#include <media/v4l2-fwnode.h>
-#include <linux/vsc.h>
-
-#define OV02C10_LINK_FREQ_400MHZ 400000000ULL
-#define OV02C10_SCLK 80000000LL
-#define OV02C10_MCLK 19200000
-#define OV02C10_DATA_LANES 1
-#define OV02C10_RGB_DEPTH 10
-
-#define OV02C10_REG_CHIP_ID 0x300a
-#define OV02C10_CHIP_ID 0x560243
-
-#define OV02C10_REG_MODE_SELECT 0x0100
-#define OV02C10_MODE_STANDBY 0x00
-#define OV02C10_MODE_STREAMING 0x01
-
-/* vertical-timings from sensor */
-#define OV02C10_REG_VTS 0x380e
-#define OV02C10_VTS_DEF 0x048c
-#define OV02C10_VTS_MIN 0x048c
-#define OV02C10_VTS_MAX 0x7fff
-
-/* Exposure controls from sensor */
-#define OV02C10_REG_EXPOSURE 0x3501
-#define OV02C10_EXPOSURE_MIN 4
-#define OV02C10_EXPOSURE_MAX_MARGIN 8
-#define OV02C10_EXPOSURE_STEP 1
-
-/* Analog gain controls from sensor */
-#define OV02C10_REG_ANALOG_GAIN 0x3508
-#define OV02C10_ANAL_GAIN_MIN 0x10
-#define OV02C10_ANAL_GAIN_MAX 0xf8
-#define OV02C10_ANAL_GAIN_STEP 1
-#define OV02C10_ANAL_GAIN_DEFAULT 0x80
-
-/* Digital gain controls from sensor */
-#define OV02C10_REG_DIGILAL_GAIN 0x350a
-#define OV02C10_DGTL_GAIN_MIN 0x0400
-#define OV02C10_DGTL_GAIN_MAX 0x3fff
-#define OV02C10_DGTL_GAIN_STEP 1
-#define OV02C10_DGTL_GAIN_DEFAULT 0x0400
-
-/* Test Pattern Control */
-#define OV02C10_REG_TEST_PATTERN 0x4503
-#define OV02C10_TEST_PATTERN_ENABLE BIT(7)
-#define OV02C10_TEST_PATTERN_BAR_SHIFT 0
-
-enum {
- OV02C10_LINK_FREQ_400MHZ_INDEX,
-};
-
-struct ov02c10_reg {
- u16 address;
- u8 val;
-};
-
-struct ov02c10_reg_list {
- u32 num_of_regs;
- const struct ov02c10_reg *regs;
-};
-
-struct ov02c10_link_freq_config {
- const struct ov02c10_reg_list reg_list;
-};
-
-struct ov02c10_mode {
- /* Frame width in pixels */
- u32 width;
-
- /* Frame height in pixels */
- u32 height;
-
- /* Horizontal timining size */
- u32 hts;
-
- /* Default vertical timining size */
- u32 vts_def;
-
- /* Min vertical timining size */
- u32 vts_min;
-
- /* Link frequency needed for this resolution */
- u32 link_freq_index;
-
- /* Sensor register settings for this resolution */
- const struct ov02c10_reg_list reg_list;
-};
-
-static const struct ov02c10_reg mipi_data_rate_960mbps[] = {
-};
-
-static const struct ov02c10_reg sensor_1932x1092_1lane_30fps_setting[] = {
- // 1932x1092_GRBG_MIPI_MCLK19.2MHz_30fps_1Lane
- {0x0301, 0x08},
- // {0x0303, 0x06},
- {0x0304, 0x01},
- // {0x0305, 0xe0},
- {0x0313, 0x40},
- {0x031c, 0x4f},
- {0x301b, 0xd2},
- {0x3020, 0x97},
- {0x3022, 0x01},
- {0x3026, 0xb4},
- {0x3027, 0xe1},
- {0x303b, 0x00},
- {0x303c, 0x4f},
- {0x303d, 0xe6},
- {0x303e, 0x00},
- {0x303f, 0x03},
- {0x3021, 0x23},
- {0x3501, 0x04},
- {0x3502, 0x6c},
- {0x3504, 0x0c},
- {0x3507, 0x00},
- {0x3508, 0x08},
- {0x3509, 0x00},
- {0x350a, 0x01},
- {0x350b, 0x00},
- {0x350c, 0x41},
- {0x3600, 0x84},
- {0x3611, 0x1b},
- {0x3613, 0x78},
- {0x3623, 0x00},
- {0x3632, 0xa0},
- {0x3642, 0xe8},
- {0x364c, 0x70},
- {0x365f, 0x0f},
- {0x3708, 0x30},
- {0x3714, 0x24},
- {0x3725, 0x02},
- {0x3737, 0x08},
- {0x3739, 0x28},
- {0x3749, 0x32},
- {0x374a, 0x32},
- {0x374b, 0x32},
- {0x374c, 0x32},
- {0x374d, 0x81},
- {0x374e, 0x81},
- {0x374f, 0x81},
- {0x3752, 0x36},
- {0x3753, 0x36},
- {0x3754, 0x36},
- {0x3761, 0x00},
- {0x376c, 0x81},
- {0x377c, 0x81},
- {0x377d, 0x81},
- {0x377e, 0x81},
- {0x37a0, 0x44},
- {0x37a6, 0x44},
- {0x37aa, 0x0d},
- {0x37ae, 0x00},
- {0x37cb, 0x03},
- {0x37cc, 0x01},
- {0x37d8, 0x02},
- {0x37d9, 0x10},
- {0x37e1, 0x10},
- {0x37e2, 0x18},
- {0x37e3, 0x08},
- {0x37e4, 0x08},
- {0x37e5, 0x02},
- {0x37e6, 0x08},
- {0x3800, 0x00},
- {0x3801, 0x00},
- {0x3802, 0x00},
- // {0x3803, 0x04},
- // {0x3804, 0x07},
- // {0x3805, 0x8f},
- // {0x3806, 0x04},
- // {0x3807, 0x43},
- // {0x3808, 0x07},
- // {0x3809, 0x80},
- // {0x380a, 0x04},
- // {0x380b, 0x38},
- // {0x380c, 0x04},
- // {0x380d, 0x74},
- // {0x380e, 0x04},
- // {0x380f, 0x8c},
- // {0x3810, 0x00},
- // {0x3811, 0x07},
- // {0x3812, 0x00},
- // {0x3813, 0x04},
- {0x3814, 0x01},
- {0x3815, 0x01},
- {0x3816, 0x01},
- {0x3817, 0x01},
- {0x3820, 0xa8},
- {0x3821, 0x00},
- {0x3822, 0x80},
- {0x3823, 0x08},
- {0x3824, 0x00},
- {0x3825, 0x20},
- {0x3826, 0x00},
- {0x3827, 0x08},
- {0x382a, 0x00},
- {0x382b, 0x08},
- {0x382d, 0x00},
- {0x382e, 0x00},
- {0x382f, 0x23},
- {0x3834, 0x00},
- {0x3839, 0x00},
- {0x383a, 0xd1},
- {0x383e, 0x03},
- {0x393d, 0x29},
- {0x393f, 0x6e},
- {0x394b, 0x01},
- {0x394c, 0x01},
- {0x394d, 0x01},
- {0x394e, 0x01},
- {0x394f, 0x01},
- {0x3950, 0x01},
- {0x3951, 0x01},
- {0x3952, 0x01},
- {0x3953, 0x01},
- {0x3954, 0x01},
- {0x3955, 0x01},
- {0x3956, 0x01},
- {0x3957, 0x0e},
- {0x3958, 0x08},
- {0x3959, 0x08},
- {0x395a, 0x08},
- {0x395b, 0x00},
- {0x395c, 0x00},
- {0x395d, 0x00},
- {0x395e, 0x00},
- {0x395f, 0x00},
- {0x395f, 0x00},
- {0x3960, 0x00},
- {0x3961, 0x00},
- {0x3962, 0x00},
- {0x3963, 0x00},
- {0x3964, 0x00},
- {0x3965, 0x00},
- {0x3966, 0x00},
- {0x3967, 0x00},
- {0x3968, 0x01},
- {0x3969, 0x01},
- {0x396a, 0x01},
- {0x396b, 0x01},
- {0x396c, 0x00},
- {0x396d, 0xf0},
- {0x396e, 0x11},
- {0x396f, 0x00},
- {0x3970, 0x37},
- {0x3971, 0x37},
- {0x3972, 0x37},
- {0x3973, 0x37},
- {0x3974, 0x00},
- {0x3975, 0x3c},
- {0x3976, 0x3c},
- {0x3977, 0x3c},
- {0x3978, 0x3c},
- {0x3c00, 0x0f},
- {0x3c20, 0x01},
- {0x3c21, 0x08},
- {0x3f00, 0x8b},
- {0x3f02, 0x0f},
- {0x4000, 0xc3},
- {0x4001, 0xe0},
- {0x4002, 0x00},
- {0x4003, 0x40},
- {0x4008, 0x04},
- {0x4009, 0x23},
- {0x400a, 0x04},
- {0x400b, 0x01},
- {0x4077, 0x06},
- {0x4078, 0x00},
- {0x4079, 0x1a},
- {0x407a, 0x7f},
- {0x407b, 0x01},
- {0x4080, 0x03},
- {0x4081, 0x84},
- {0x4308, 0x03},
- {0x4309, 0xff},
- {0x430d, 0x00},
- {0x4806, 0x00},
- {0x4813, 0x00},
- {0x4837, 0x10},
- {0x4857, 0x05},
- {0x4500, 0x07},
- {0x4501, 0x00},
- {0x4503, 0x00},
- {0x450a, 0x04},
- {0x450e, 0x00},
- {0x450f, 0x00},
- {0x4800, 0x24},
- {0x4900, 0x00},
- {0x4901, 0x00},
- {0x4902, 0x01},
- {0x5000, 0xf5},
- {0x5001, 0x50},
- {0x5006, 0x00},
- {0x5080, 0x40},
- {0x5181, 0x2b},
- {0x5202, 0xa3},
- {0x5206, 0x01},
- {0x5207, 0x00},
- {0x520a, 0x01},
- {0x520b, 0x00},
- // {0x3016, 0x32},
- {0x365d, 0x00},
- {0x4815, 0x40},
- {0x4816, 0x12},
- {0x4f00, 0x01},
- {0x396c, 0x10},
- {0x3603, 0x08},
- {0x395b, 0x13},
- {0x395c, 0x09},
- {0x395d, 0x05},
- {0x395e, 0x02},
- {0x3610, 0x57},
- {0x394e, 0x0b},
- {0x394d, 0x08},
- {0x394c, 0x06},
- {0x394b, 0x06},
- // key setting for MCLK=19.2MCLK 1932x1092 GRBG 1 lane 30fps
- {0x0303, 0x05},
- {0x0305, 0x90},
- {0x0316, 0x90},
- {0x3016, 0x12},
- {0x3803, 0x00},
- {0x3804, 0x07},
- {0x3805, 0x8f},
- {0x3806, 0x04},
- {0x3807, 0x47},
- {0x3808, 0x07},
- {0x3809, 0x8c},
- {0x380a, 0x04},
- {0x380b, 0x44},
- {0x380c, 0x08},
- {0x380d, 0xe8},
- {0x380e, 0x04},
- {0x380f, 0x8c},
- {0x3810, 0x00},
- {0x3811, 0x03},
- {0x3812, 0x00},
- {0x3813, 0x03},
-};
-
-static const char * const ov02c10_test_pattern_menu[] = {
- "Disabled",
- "Color Bar",
- "Top-Bottom Darker Color Bar",
- "Right-Left Darker Color Bar",
- "Color Bar type 4",
-};
-
-static const s64 link_freq_menu_items[] = {
- OV02C10_LINK_FREQ_400MHZ,
-};
-
-static const struct ov02c10_link_freq_config link_freq_configs[] = {
- [OV02C10_LINK_FREQ_400MHZ_INDEX] = {
- .reg_list = {
- .num_of_regs = ARRAY_SIZE(mipi_data_rate_960mbps),
- .regs = mipi_data_rate_960mbps,
- }
- },
-};
-
-static const struct ov02c10_mode supported_modes[] = {
- {
- .width = 1932,
- .height = 1092,
- .hts = 2280,
- .vts_def = OV02C10_VTS_DEF,
- .vts_min = OV02C10_VTS_MIN,
- .reg_list = {
- .num_of_regs = ARRAY_SIZE(sensor_1932x1092_1lane_30fps_setting),
- .regs = sensor_1932x1092_1lane_30fps_setting,
- },
- .link_freq_index = OV02C10_LINK_FREQ_400MHZ_INDEX,
- },
-};
-
-struct ov02c10 {
- struct v4l2_subdev sd;
- struct media_pad pad;
- struct v4l2_ctrl_handler ctrl_handler;
-
- /* V4L2 Controls */
- struct v4l2_ctrl *link_freq;
- struct v4l2_ctrl *pixel_rate;
- struct v4l2_ctrl *vblank;
- struct v4l2_ctrl *hblank;
- struct v4l2_ctrl *exposure;
- struct v4l2_ctrl *privacy_status;
- /* Current mode */
- const struct ov02c10_mode *cur_mode;
-
- /* To serialize asynchronus callbacks */
- struct mutex mutex;
-
- /* Streaming on/off */
- bool streaming;
-};
-
-static inline struct ov02c10 *to_ov02c10(struct v4l2_subdev *subdev)
-{
- return container_of(subdev, struct ov02c10, sd);
-}
-
-static int ov02c10_read_reg(struct ov02c10 *ov02c10, u16 reg, u16 len, u32 *val)
-{
- struct i2c_client *client = v4l2_get_subdevdata(&ov02c10->sd);
- struct i2c_msg msgs[2];
- u8 addr_buf[2];
- u8 data_buf[4] = {0};
- int ret = 0;
-
- if (len > sizeof(data_buf))
- return -EINVAL;
-
- put_unaligned_be16(reg, addr_buf);
- msgs[0].addr = client->addr;
- msgs[0].flags = 0;
- msgs[0].len = sizeof(addr_buf);
- msgs[0].buf = addr_buf;
- msgs[1].addr = client->addr;
- msgs[1].flags = I2C_M_RD;
- msgs[1].len = len;
- msgs[1].buf = &data_buf[sizeof(data_buf) - len];
-
- ret = i2c_transfer(client->adapter, msgs, ARRAY_SIZE(msgs));
-
- if (ret != ARRAY_SIZE(msgs))
- return ret < 0 ? ret : -EIO;
-
- *val = get_unaligned_be32(data_buf);
-
- return 0;
-}
-
-static int ov02c10_write_reg(struct ov02c10 *ov02c10, u16 reg, u16 len, u32 val)
-{
- struct i2c_client *client = v4l2_get_subdevdata(&ov02c10->sd);
- u8 buf[6];
- int ret = 0;
-
- if (len > 4)
- return -EINVAL;
-
- put_unaligned_be16(reg, buf);
- put_unaligned_be32(val << 8 * (4 - len), buf + 2);
-
- ret = i2c_master_send(client, buf, len + 2);
- if (ret != len + 2)
- return ret < 0 ? ret : -EIO;
-
- return 0;
-}
-
-static int ov02c10_write_reg_list(struct ov02c10 *ov02c10,
- const struct ov02c10_reg_list *r_list)
-{
- struct i2c_client *client = v4l2_get_subdevdata(&ov02c10->sd);
- unsigned int i;
- int ret = 0;
-
- for (i = 0; i < r_list->num_of_regs; i++) {
- ret = ov02c10_write_reg(ov02c10, r_list->regs[i].address, 1,
- r_list->regs[i].val);
- if (ret) {
- dev_err_ratelimited(&client->dev,
- "write reg 0x%4.4x return err = %d",
- r_list->regs[i].address, ret);
- return ret;
- }
- }
-
- return 0;
-}
-
-static int ov02c10_test_pattern(struct ov02c10 *ov02c10, u32 pattern)
-{
- if (pattern)
- pattern = (pattern - 1) << OV02C10_TEST_PATTERN_BAR_SHIFT |
- OV02C10_TEST_PATTERN_ENABLE;
-
- return ov02c10_write_reg(ov02c10, OV02C10_REG_TEST_PATTERN, 1, pattern);
-}
-
-static int ov02c10_set_ctrl(struct v4l2_ctrl *ctrl)
-{
- struct ov02c10 *ov02c10 = container_of(ctrl->handler,
- struct ov02c10, ctrl_handler);
- struct i2c_client *client = v4l2_get_subdevdata(&ov02c10->sd);
- s64 exposure_max;
- int ret = 0;
-
- /* Propagate change of current control to all related controls */
- if (ctrl->id == V4L2_CID_VBLANK) {
- /* Update max exposure while meeting expected vblanking */
- exposure_max = ov02c10->cur_mode->height + ctrl->val -
- OV02C10_EXPOSURE_MAX_MARGIN;
- __v4l2_ctrl_modify_range(ov02c10->exposure,
- ov02c10->exposure->minimum,
- exposure_max, ov02c10->exposure->step,
- exposure_max);
- }
-
- /* V4L2 controls values will be applied only when power is already up */
- if (!pm_runtime_get_if_in_use(&client->dev))
- return 0;
-
- switch (ctrl->id) {
- case V4L2_CID_ANALOGUE_GAIN:
- ret = ov02c10_write_reg(ov02c10, OV02C10_REG_ANALOG_GAIN, 2,
- ctrl->val << 4);
- break;
-
- case V4L2_CID_DIGITAL_GAIN:
- ret = ov02c10_write_reg(ov02c10, OV02C10_REG_DIGILAL_GAIN, 3,
- ctrl->val << 6);
- break;
-
- case V4L2_CID_EXPOSURE:
- ret = ov02c10_write_reg(ov02c10, OV02C10_REG_EXPOSURE, 2,
- ctrl->val);
- break;
-
- case V4L2_CID_VBLANK:
- ret = ov02c10_write_reg(ov02c10, OV02C10_REG_VTS, 2,
- ov02c10->cur_mode->height + ctrl->val);
- break;
-
- case V4L2_CID_TEST_PATTERN:
- ret = ov02c10_test_pattern(ov02c10, ctrl->val);
- break;
-
- case V4L2_CID_PRIVACY:
- dev_dbg(&client->dev, "set privacy to %d", ctrl->val);
- break;
-
- default:
- ret = -EINVAL;
- break;
- }
-
- pm_runtime_put(&client->dev);
-
- return ret;
-}
-
-static const struct v4l2_ctrl_ops ov02c10_ctrl_ops = {
- .s_ctrl = ov02c10_set_ctrl,
-};
-
-static int ov02c10_init_controls(struct ov02c10 *ov02c10)
-{
- struct v4l2_ctrl_handler *ctrl_hdlr;
- const struct ov02c10_mode *cur_mode;
- s64 exposure_max, h_blank;
- u32 vblank_min, vblank_max, vblank_default;
- int size;
- int ret = 0;
-
- ctrl_hdlr = &ov02c10->ctrl_handler;
- ret = v4l2_ctrl_handler_init(ctrl_hdlr, 9);
- if (ret)
- return ret;
-
- ctrl_hdlr->lock = &ov02c10->mutex;
- cur_mode = ov02c10->cur_mode;
- size = ARRAY_SIZE(link_freq_menu_items);
-
- ov02c10->link_freq = v4l2_ctrl_new_int_menu(ctrl_hdlr,
- &ov02c10_ctrl_ops,
- V4L2_CID_LINK_FREQ,
- size - 1, 0,
- link_freq_menu_items);
- if (ov02c10->link_freq)
- ov02c10->link_freq->flags |= V4L2_CTRL_FLAG_READ_ONLY;
-
- ov02c10->pixel_rate = v4l2_ctrl_new_std(ctrl_hdlr, &ov02c10_ctrl_ops,
- V4L2_CID_PIXEL_RATE, 0,
- OV02C10_SCLK, 1, OV02C10_SCLK);
-
- vblank_min = cur_mode->vts_min - cur_mode->height;
- vblank_max = OV02C10_VTS_MAX - cur_mode->height;
- vblank_default = cur_mode->vts_def - cur_mode->height;
- ov02c10->vblank = v4l2_ctrl_new_std(ctrl_hdlr, &ov02c10_ctrl_ops,
- V4L2_CID_VBLANK, vblank_min,
- vblank_max, 1, vblank_default);
-
- h_blank = cur_mode->hts - cur_mode->width;
- ov02c10->hblank = v4l2_ctrl_new_std(ctrl_hdlr, &ov02c10_ctrl_ops,
- V4L2_CID_HBLANK, h_blank, h_blank,
- 1, h_blank);
- if (ov02c10->hblank)
- ov02c10->hblank->flags |= V4L2_CTRL_FLAG_READ_ONLY;
- ov02c10->privacy_status = v4l2_ctrl_new_std(ctrl_hdlr, &ov02c10_ctrl_ops,
- V4L2_CID_PRIVACY, 0, 1, 1, 0);
-
- v4l2_ctrl_new_std(ctrl_hdlr, &ov02c10_ctrl_ops, V4L2_CID_ANALOGUE_GAIN,
- OV02C10_ANAL_GAIN_MIN, OV02C10_ANAL_GAIN_MAX,
- OV02C10_ANAL_GAIN_STEP, OV02C10_ANAL_GAIN_DEFAULT);
- v4l2_ctrl_new_std(ctrl_hdlr, &ov02c10_ctrl_ops, V4L2_CID_DIGITAL_GAIN,
- OV02C10_DGTL_GAIN_MIN, OV02C10_DGTL_GAIN_MAX,
- OV02C10_DGTL_GAIN_STEP, OV02C10_DGTL_GAIN_DEFAULT);
- exposure_max = cur_mode->vts_def - OV02C10_EXPOSURE_MAX_MARGIN;
- ov02c10->exposure = v4l2_ctrl_new_std(ctrl_hdlr, &ov02c10_ctrl_ops,
- V4L2_CID_EXPOSURE,
- OV02C10_EXPOSURE_MIN,
- exposure_max,
- OV02C10_EXPOSURE_STEP,
- exposure_max);
- v4l2_ctrl_new_std_menu_items(ctrl_hdlr, &ov02c10_ctrl_ops,
- V4L2_CID_TEST_PATTERN,
- ARRAY_SIZE(ov02c10_test_pattern_menu) - 1,
- 0, 0, ov02c10_test_pattern_menu);
- if (ctrl_hdlr->error)
- return ctrl_hdlr->error;
-
- ov02c10->sd.ctrl_handler = ctrl_hdlr;
-
- return 0;
-}
-
-static void ov02c10_update_pad_format(const struct ov02c10_mode *mode,
- struct v4l2_mbus_framefmt *fmt)
-{
- fmt->width = mode->width;
- fmt->height = mode->height;
- fmt->code = MEDIA_BUS_FMT_SGRBG10_1X10;
- fmt->field = V4L2_FIELD_NONE;
-}
-
-static void ov02c10_vsc_privacy_callback(void *handle,
- enum vsc_privacy_status status)
-{
- struct ov02c10 *ov02c10 = handle;
-
- v4l2_ctrl_s_ctrl(ov02c10->privacy_status, !status);
-}
-
-static int ov02c10_start_streaming(struct ov02c10 *ov02c10)
-{
- struct i2c_client *client = v4l2_get_subdevdata(&ov02c10->sd);
- const struct ov02c10_reg_list *reg_list;
- int link_freq_index;
- int ret = 0;
- struct vsc_mipi_config conf;
- struct vsc_camera_status status;
-
- conf.lane_num = OV02C10_DATA_LANES;
- /* frequency unit 100k */
- conf.freq = OV02C10_LINK_FREQ_400MHZ / 100000;
- ret = vsc_acquire_camera_sensor(&conf, ov02c10_vsc_privacy_callback,
- ov02c10, &status);
- if (ret) {
- dev_err(&client->dev, "Acquire VSC failed");
- return ret;
- }
- __v4l2_ctrl_s_ctrl(ov02c10->privacy_status, !(status.status));
- link_freq_index = ov02c10->cur_mode->link_freq_index;
- reg_list = &link_freq_configs[link_freq_index].reg_list;
- ret = ov02c10_write_reg_list(ov02c10, reg_list);
- if (ret) {
- dev_err(&client->dev, "failed to set plls");
- return ret;
- }
-
- reg_list = &ov02c10->cur_mode->reg_list;
- ret = ov02c10_write_reg_list(ov02c10, reg_list);
- if (ret) {
- dev_err(&client->dev, "failed to set mode");
- return ret;
- }
-
- ret = __v4l2_ctrl_handler_setup(ov02c10->sd.ctrl_handler);
- if (ret)
- return ret;
-
- ret = ov02c10_write_reg(ov02c10, OV02C10_REG_MODE_SELECT, 1,
- OV02C10_MODE_STREAMING);
- if (ret)
- dev_err(&client->dev, "failed to start streaming");
-
- return ret;
-}
-
-static void ov02c10_stop_streaming(struct ov02c10 *ov02c10)
-{
- struct i2c_client *client = v4l2_get_subdevdata(&ov02c10->sd);
- int ret = 0;
- struct vsc_camera_status status;
-
- ret = ov02c10_write_reg(ov02c10, OV02C10_REG_MODE_SELECT, 1,
- OV02C10_MODE_STANDBY);
- if (ret)
- dev_err(&client->dev, "failed to stop streaming");
- ret = vsc_release_camera_sensor(&status);
- if (ret)
- dev_err(&client->dev, "Release VSC failed");
-}
-
-static int ov02c10_set_stream(struct v4l2_subdev *sd, int enable)
-{
- struct ov02c10 *ov02c10 = to_ov02c10(sd);
- struct i2c_client *client = v4l2_get_subdevdata(sd);
- int ret = 0;
-
- if (ov02c10->streaming == enable)
- return 0;
-
- mutex_lock(&ov02c10->mutex);
- if (enable) {
- ret = pm_runtime_get_sync(&client->dev);
- if (ret < 0) {
- pm_runtime_put_noidle(&client->dev);
- mutex_unlock(&ov02c10->mutex);
- return ret;
- }
-
- ret = ov02c10_start_streaming(ov02c10);
- if (ret) {
- enable = 0;
- ov02c10_stop_streaming(ov02c10);
- pm_runtime_put(&client->dev);
- }
- } else {
- ov02c10_stop_streaming(ov02c10);
- pm_runtime_put(&client->dev);
- }
-
- ov02c10->streaming = enable;
- mutex_unlock(&ov02c10->mutex);
-
- return ret;
-}
-
-static int __maybe_unused ov02c10_suspend(struct device *dev)
-{
- struct i2c_client *client = to_i2c_client(dev);
- struct v4l2_subdev *sd = i2c_get_clientdata(client);
- struct ov02c10 *ov02c10 = to_ov02c10(sd);
-
- mutex_lock(&ov02c10->mutex);
- if (ov02c10->streaming)
- ov02c10_stop_streaming(ov02c10);
-
- mutex_unlock(&ov02c10->mutex);
-
- return 0;
-}
-
-static int __maybe_unused ov02c10_resume(struct device *dev)
-{
- struct i2c_client *client = to_i2c_client(dev);
- struct v4l2_subdev *sd = i2c_get_clientdata(client);
- struct ov02c10 *ov02c10 = to_ov02c10(sd);
- int ret = 0;
-
- mutex_lock(&ov02c10->mutex);
- if (!ov02c10->streaming)
- goto exit;
-
- ret = ov02c10_start_streaming(ov02c10);
- if (ret) {
- ov02c10->streaming = false;
- ov02c10_stop_streaming(ov02c10);
- }
-
-exit:
- mutex_unlock(&ov02c10->mutex);
- return ret;
-}
-
-static int ov02c10_set_format(struct v4l2_subdev *sd,
- struct v4l2_subdev_state *sd_state,
- struct v4l2_subdev_format *fmt)
-{
- struct ov02c10 *ov02c10 = to_ov02c10(sd);
- const struct ov02c10_mode *mode;
- s32 vblank_def, h_blank;
-
- mode = v4l2_find_nearest_size(supported_modes,
- ARRAY_SIZE(supported_modes), width,
- height, fmt->format.width,
- fmt->format.height);
-
- mutex_lock(&ov02c10->mutex);
- ov02c10_update_pad_format(mode, &fmt->format);
- if (fmt->which == V4L2_SUBDEV_FORMAT_TRY) {
- *v4l2_subdev_get_try_format(sd, sd_state, fmt->pad) = fmt->format;
- } else {
- ov02c10->cur_mode = mode;
- __v4l2_ctrl_s_ctrl(ov02c10->link_freq, mode->link_freq_index);
- __v4l2_ctrl_s_ctrl_int64(ov02c10->pixel_rate, OV02C10_SCLK);
-
- /* Update limits and set FPS to default */
- vblank_def = mode->vts_def - mode->height;
- __v4l2_ctrl_modify_range(ov02c10->vblank,
- mode->vts_min - mode->height,
- OV02C10_VTS_MAX - mode->height, 1,
- vblank_def);
- __v4l2_ctrl_s_ctrl(ov02c10->vblank, vblank_def);
- h_blank = mode->hts - mode->width;
- __v4l2_ctrl_modify_range(ov02c10->hblank, h_blank, h_blank, 1,
- h_blank);
- }
- mutex_unlock(&ov02c10->mutex);
-
- return 0;
-}
-
-static int ov02c10_get_format(struct v4l2_subdev *sd,
- struct v4l2_subdev_state *sd_state,
- struct v4l2_subdev_format *fmt)
-{
- struct ov02c10 *ov02c10 = to_ov02c10(sd);
-
- mutex_lock(&ov02c10->mutex);
- if (fmt->which == V4L2_SUBDEV_FORMAT_TRY)
- fmt->format = *v4l2_subdev_get_try_format(&ov02c10->sd,
- sd_state, fmt->pad);
- else
- ov02c10_update_pad_format(ov02c10->cur_mode, &fmt->format);
-
- mutex_unlock(&ov02c10->mutex);
-
- return 0;
-}
-
-static int ov02c10_enum_mbus_code(struct v4l2_subdev *sd,
- struct v4l2_subdev_state *sd_state,
- struct v4l2_subdev_mbus_code_enum *code)
-{
- if (code->index > 0)
- return -EINVAL;
-
- code->code = MEDIA_BUS_FMT_SGRBG10_1X10;
-
- return 0;
-}
-
-static int ov02c10_enum_frame_size(struct v4l2_subdev *sd,
- struct v4l2_subdev_state *sd_state,
- struct v4l2_subdev_frame_size_enum *fse)
-{
- if (fse->index >= ARRAY_SIZE(supported_modes))
- return -EINVAL;
-
- if (fse->code != MEDIA_BUS_FMT_SGRBG10_1X10)
- return -EINVAL;
-
- fse->min_width = supported_modes[fse->index].width;
- fse->max_width = fse->min_width;
- fse->min_height = supported_modes[fse->index].height;
- fse->max_height = fse->min_height;
-
- return 0;
-}
-
-static int ov02c10_open(struct v4l2_subdev *sd, struct v4l2_subdev_fh *fh)
-{
- struct ov02c10 *ov02c10 = to_ov02c10(sd);
-
- mutex_lock(&ov02c10->mutex);
- ov02c10_update_pad_format(&supported_modes[0],
- v4l2_subdev_get_try_format(sd, fh->state, 0));
- mutex_unlock(&ov02c10->mutex);
-
- return 0;
-}
-
-static const struct v4l2_subdev_video_ops ov02c10_video_ops = {
- .s_stream = ov02c10_set_stream,
-};
-
-static const struct v4l2_subdev_pad_ops ov02c10_pad_ops = {
- .set_fmt = ov02c10_set_format,
- .get_fmt = ov02c10_get_format,
- .enum_mbus_code = ov02c10_enum_mbus_code,
- .enum_frame_size = ov02c10_enum_frame_size,
-};
-
-static const struct v4l2_subdev_ops ov02c10_subdev_ops = {
- .video = &ov02c10_video_ops,
- .pad = &ov02c10_pad_ops,
-};
-
-static const struct media_entity_operations ov02c10_subdev_entity_ops = {
- .link_validate = v4l2_subdev_link_validate,
-};
-
-static const struct v4l2_subdev_internal_ops ov02c10_internal_ops = {
- .open = ov02c10_open,
-};
-
-static int ov02c10_identify_module(struct ov02c10 *ov02c10)
-{
- struct i2c_client *client = v4l2_get_subdevdata(&ov02c10->sd);
- int ret;
- u32 val;
-
- ret = ov02c10_read_reg(ov02c10, OV02C10_REG_CHIP_ID, 3, &val);
- if (ret)
- return ret;
-
- if (val != OV02C10_CHIP_ID) {
- dev_err(&client->dev, "chip id mismatch: %x!=%x",
- OV02C10_CHIP_ID, val);
- return -ENXIO;
- }
-
- return 0;
-}
-
-static int ov02c10_remove(struct i2c_client *client)
-{
- struct v4l2_subdev *sd = i2c_get_clientdata(client);
- struct ov02c10 *ov02c10 = to_ov02c10(sd);
-
- v4l2_async_unregister_subdev(sd);
- media_entity_cleanup(&sd->entity);
- v4l2_ctrl_handler_free(sd->ctrl_handler);
- pm_runtime_disable(&client->dev);
- mutex_destroy(&ov02c10->mutex);
-
- return 0;
-}
-
-static int ov02c10_probe(struct i2c_client *client)
-{
- struct ov02c10 *ov02c10;
- int ret = 0;
- struct vsc_mipi_config conf;
- struct vsc_camera_status status;
-
- conf.lane_num = OV02C10_DATA_LANES;
- /* frequency unit 100k */
- conf.freq = OV02C10_LINK_FREQ_400MHZ / 100000;
- ret = vsc_acquire_camera_sensor(&conf, NULL, NULL, &status);
- if (ret == -EAGAIN) {
- dev_dbg(&client->dev, "VSC not ready, will re-probe");
- return -EPROBE_DEFER;
- } else if (ret) {
- dev_err(&client->dev, "Acquire VSC failed");
- return ret;
- }
- ov02c10 = devm_kzalloc(&client->dev, sizeof(*ov02c10), GFP_KERNEL);
- if (!ov02c10) {
- ret = -ENOMEM;
- goto probe_error_ret;
- }
-
- v4l2_i2c_subdev_init(&ov02c10->sd, client, &ov02c10_subdev_ops);
-
- ret = ov02c10_identify_module(ov02c10);
- if (ret) {
- dev_err(&client->dev, "failed to find sensor: %d", ret);
- goto probe_error_ret;
- }
-
- mutex_init(&ov02c10->mutex);
- ov02c10->cur_mode = &supported_modes[0];
- ret = ov02c10_init_controls(ov02c10);
- if (ret) {
- dev_err(&client->dev, "failed to init controls: %d", ret);
- goto probe_error_v4l2_ctrl_handler_free;
- }
-
- ov02c10->sd.internal_ops = &ov02c10_internal_ops;
- ov02c10->sd.flags |= V4L2_SUBDEV_FL_HAS_DEVNODE;
- ov02c10->sd.entity.ops = &ov02c10_subdev_entity_ops;
- ov02c10->sd.entity.function = MEDIA_ENT_F_CAM_SENSOR;
- ov02c10->pad.flags = MEDIA_PAD_FL_SOURCE;
- ret = media_entity_pads_init(&ov02c10->sd.entity, 1, &ov02c10->pad);
- if (ret) {
- dev_err(&client->dev, "failed to init entity pads: %d", ret);
- goto probe_error_v4l2_ctrl_handler_free;
- }
-
- ret = v4l2_async_register_subdev_sensor(&ov02c10->sd);
- if (ret < 0) {
- dev_err(&client->dev, "failed to register V4L2 subdev: %d",
- ret);
- goto probe_error_media_entity_cleanup;
- }
-
- vsc_release_camera_sensor(&status);
- /*
- * Device is already turned on by i2c-core with ACPI domain PM.
- * Enable runtime PM and turn off the device.
- */
- pm_runtime_set_active(&client->dev);
- pm_runtime_enable(&client->dev);
- pm_runtime_idle(&client->dev);
-
- return 0;
-
-probe_error_media_entity_cleanup:
- media_entity_cleanup(&ov02c10->sd.entity);
-
-probe_error_v4l2_ctrl_handler_free:
- v4l2_ctrl_handler_free(ov02c10->sd.ctrl_handler);
- mutex_destroy(&ov02c10->mutex);
-
-probe_error_ret:
- vsc_release_camera_sensor(&status);
- return ret;
-}
-
-static const struct dev_pm_ops ov02c10_pm_ops = {
- SET_SYSTEM_SLEEP_PM_OPS(ov02c10_suspend, ov02c10_resume)
-};
-
-#ifdef CONFIG_ACPI
-static const struct acpi_device_id ov02c10_acpi_ids[] = {
- {"OVTI02C1"},
- {}
-};
-
-MODULE_DEVICE_TABLE(acpi, ov02c10_acpi_ids);
-#endif
-
-static struct i2c_driver ov02c10_i2c_driver = {
- .driver = {
- .name = "ov02c10",
- .pm = &ov02c10_pm_ops,
- .acpi_match_table = ACPI_PTR(ov02c10_acpi_ids),
- },
- .probe_new = ov02c10_probe,
- .remove = ov02c10_remove,
-};
-
-module_i2c_driver(ov02c10_i2c_driver);
-
-MODULE_AUTHOR("Hao Yao <hao.yao@intel.com>");
-MODULE_DESCRIPTION("OmniVision OV02C10 sensor driver");
-MODULE_LICENSE("GPL v2");
projects / mirror_ubuntu-jammy-kernel.git / commitdiff