drivers/staging/media/atomisp/pci/atomisp2/atomisp_internal.h

   1 /*
   2  * Support for Medifield PNW Camera Imaging ISP subsystem.
   3  *
   4  * Copyright (c) 2010 Intel Corporation. All Rights Reserved.
   5  *
   6  * Copyright (c) 2010 Silicon Hive www.siliconhive.com.
   7  *
   8  * This program is free software; you can redistribute it and/or
   9  * modify it under the terms of the GNU General Public License version
  10  * 2 as published by the Free Software Foundation.
  11  *
  12  * This program is distributed in the hope that it will be useful,
  13  * but WITHOUT ANY WARRANTY; without even the implied warranty of
  14  * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
  15  * GNU General Public License for more details.
  16  *
  17  * You should have received a copy of the GNU General Public License
  18  * along with this program; if not, write to the Free Software
  19  * Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA
  20  * 02110-1301, USA.
  21  *
  22  */
  23 #ifndef __ATOMISP_INTERNAL_H__
  24 #define __ATOMISP_INTERNAL_H__
  25
  26 #include "../../include/linux/atomisp_platform.h"
  27 #include <linux/firmware.h>
  28 #include <linux/kernel.h>
  29 #include <linux/pm_qos.h>
  30 #include <linux/idr.h>
  31
  32 #include <asm/intel-mid.h>
  33 #include "../../include/asm/intel_mid_pcihelpers.h"
  34
  35 #include <media/media-device.h>
  36 #include <media/v4l2-subdev.h>
  37
  38 #ifndef ISP2401
  39 #include "ia_css_types.h"
  40 #include "sh_css_legacy.h"
  41 #else
  42 /*#include "ia_css_types.h"*/
  43 /*#include "sh_css_legacy.h"*/
  44 #endif
  45
  46 #include "atomisp_csi2.h"
  47 #include "atomisp_file.h"
  48 #include "atomisp_subdev.h"
  49 #include "atomisp_tpg.h"
  50 #include "atomisp_compat.h"
  51
  52 #include "gp_device.h"
  53 #include "irq.h"
  54 #include <linux/vmalloc.h>
  55
  56 #define V4L2_EVENT_FRAME_END          5
  57
  58 #define IS_HWREVISION(isp, rev) \
  59         (((isp)->media_dev.hw_revision & ATOMISP_HW_REVISION_MASK) == \
  60          ((rev) << ATOMISP_HW_REVISION_SHIFT))
  61
  62 #define MAX_STREAM_NUM  2
  63
  64 #define ATOMISP_PCI_DEVICE_SOC_MASK     0xfff8
  65 /* MRFLD with 0x1178: ISP freq can burst to 457MHz */
  66 #define ATOMISP_PCI_DEVICE_SOC_MRFLD    0x1178
  67 /* MRFLD with 0x1179: max ISP freq limited to 400MHz */
  68 #define ATOMISP_PCI_DEVICE_SOC_MRFLD_1179       0x1179
  69 /* MRFLD with 0x117a: max ISP freq is 400MHz and max freq at Vmin is 200MHz */
  70 #define ATOMISP_PCI_DEVICE_SOC_MRFLD_117A       0x117a
  71 #define ATOMISP_PCI_DEVICE_SOC_BYT      0x0f38
  72 #define ATOMISP_PCI_DEVICE_SOC_ANN      0x1478
  73 #define ATOMISP_PCI_DEVICE_SOC_CHT      0x22b8
  74
  75 #define ATOMISP_PCI_REV_MRFLD_A0_MAX    0
  76 #define ATOMISP_PCI_REV_BYT_A0_MAX      4
  77
  78 #define ATOM_ISP_STEP_WIDTH     2
  79 #define ATOM_ISP_STEP_HEIGHT    2
  80
  81 #define ATOM_ISP_MIN_WIDTH      4
  82 #define ATOM_ISP_MIN_HEIGHT     4
  83 #define ATOM_ISP_MAX_WIDTH      UINT_MAX
  84 #define ATOM_ISP_MAX_HEIGHT     UINT_MAX
  85
  86 /* sub-QCIF resolution */
  87 #define ATOM_RESOLUTION_SUBQCIF_WIDTH   128
  88 #define ATOM_RESOLUTION_SUBQCIF_HEIGHT  96
  89
  90 #define ATOM_ISP_MAX_WIDTH_TMP  1280
  91 #define ATOM_ISP_MAX_HEIGHT_TMP 720
  92
  93 #define ATOM_ISP_I2C_BUS_1      4
  94 #define ATOM_ISP_I2C_BUS_2      5
  95
  96 #define ATOM_ISP_POWER_DOWN     0
  97 #define ATOM_ISP_POWER_UP       1
  98
  99 #define ATOM_ISP_MAX_INPUTS     4
 100
 101 #define ATOMISP_SC_TYPE_SIZE    2
 102
 103 #define ATOMISP_ISP_TIMEOUT_DURATION            (2 * HZ)
 104 #define ATOMISP_EXT_ISP_TIMEOUT_DURATION        (6 * HZ)
 105 #define ATOMISP_ISP_FILE_TIMEOUT_DURATION       (60 * HZ)
 106 #define ATOMISP_WDT_KEEP_CURRENT_DELAY          0
 107 #define ATOMISP_ISP_MAX_TIMEOUT_COUNT   2
 108 #define ATOMISP_CSS_STOP_TIMEOUT_US     200000
 109
 110 #define ATOMISP_CSS_Q_DEPTH     3
 111 #define ATOMISP_CSS_EVENTS_MAX  16
 112 #define ATOMISP_CONT_RAW_FRAMES 15
 113 #define ATOMISP_METADATA_QUEUE_DEPTH_FOR_HAL    8
 114 #define ATOMISP_S3A_BUF_QUEUE_DEPTH_FOR_HAL     8
 115
 116 #define ATOMISP_DELAYED_INIT_NOT_QUEUED 0
 117 #define ATOMISP_DELAYED_INIT_QUEUED     1
 118 #define ATOMISP_DELAYED_INIT_DONE       2
 119
 120 #define ATOMISP_CALC_CSS_PREV_OVERLAP(lines) \
 121         ((lines) * 38 / 100 & 0xfffffe)
 122
 123 /*
 124  * Define how fast CPU should be able to serve ISP interrupts.
 125  * The bigger the value, the higher risk that the ISP is not
 126  * triggered sufficiently fast for it to process image during
 127  * vertical blanking time, increasing risk of dropped frames.
 128  * 1000 us is a reasonable value considering that the processing
 129  * time is typically ~2000 us.
 130  */
 131 #define ATOMISP_MAX_ISR_LATENCY 1000
 132
 133 /* Add new YUVPP pipe for SOC sensor. */
 134 #define ATOMISP_CSS_SUPPORT_YUVPP     1
 135
 136 #define ATOMISP_CSS_OUTPUT_SECOND_INDEX     1
 137 #define ATOMISP_CSS_OUTPUT_DEFAULT_INDEX    0
 138
 139 /*
 140  * ATOMISP_SOC_CAMERA
 141  * This is to differentiate between ext-isp and soc camera in
 142  * Moorefield/Baytrail platform.
 143  */
 144 #define ATOMISP_SOC_CAMERA(asd)  \
 145         (asd->isp->inputs[asd->input_curr].type == SOC_CAMERA \
 146         && asd->isp->inputs[asd->input_curr].camera_caps-> \
 147            sensor[asd->sensor_curr].stream_num == 1)
 148
 149 #define ATOMISP_USE_YUVPP(asd)  \
 150         (ATOMISP_SOC_CAMERA(asd) && ATOMISP_CSS_SUPPORT_YUVPP && \
 151         !asd->copy_mode)
 152
 153 #define ATOMISP_DEPTH_SENSOR_STREAMON_COUNT 2
 154
 155 #define ATOMISP_DEPTH_DEFAULT_MASTER_SENSOR 0
 156 #define ATOMISP_DEPTH_DEFAULT_SLAVE_SENSOR 1
 157
 158 #ifdef ISP2401
 159 #define ATOMISP_ION_DEVICE_FD_OFFSET   16
 160 #define ATOMISP_ION_SHARED_FD_MASK     (0xFFFF)
 161 #define ATOMISP_ION_DEVICE_FD_MASK     (~ATOMISP_ION_SHARED_FD_MASK)
 162 #define ION_FD_UNSET (-1)
 163
 164 #endif
 165 #define DIV_NEAREST_STEP(n, d, step) \
 166         round_down((2 * (n) + (d) * (step))/(2 * (d)), (step))
 167
 168 struct atomisp_input_subdev {
 169         unsigned int type;
 170         enum atomisp_camera_port port;
 171         struct v4l2_subdev *camera;
 172         struct v4l2_subdev *motor;
 173         struct v4l2_frmsizeenum frame_size;
 174
 175         /*
 176          * To show this resource is used by
 177          * which stream, in ISP multiple stream mode
 178          */
 179         struct atomisp_sub_device *asd;
 180
 181         const struct atomisp_camera_caps *camera_caps;
 182         int sensor_index;
 183 };
 184
 185 enum atomisp_dfs_mode {
 186         ATOMISP_DFS_MODE_AUTO = 0,
 187         ATOMISP_DFS_MODE_LOW,
 188         ATOMISP_DFS_MODE_MAX,
 189 };
 190
 191 struct atomisp_regs {
 192         /* PCI config space info */
 193         u16 pcicmdsts;
 194         u32 ispmmadr;
 195         u32 msicap;
 196         u32 msi_addr;
 197         u16 msi_data;
 198         u8 intr;
 199         u32 interrupt_control;
 200         u32 pmcs;
 201         u32 cg_dis;
 202         u32 i_control;
 203
 204         /* I-Unit PHY related info */
 205         u32 csi_rcomp_config;
 206         u32 csi_afe_dly;
 207         u32 csi_control;
 208
 209         /* New for MRFLD */
 210         u32 csi_afe_rcomp_config;
 211         u32 csi_afe_hs_control;
 212         u32 csi_deadline_control;
 213         u32 csi_access_viol;
 214 };
 215
 216 struct atomisp_sw_contex {
 217         bool file_input;
 218         int power_state;
 219         int running_freq;
 220 };
 221
 222
 223 #define ATOMISP_DEVICE_STREAMING_DISABLED       0
 224 #define ATOMISP_DEVICE_STREAMING_ENABLED        1
 225 #define ATOMISP_DEVICE_STREAMING_STOPPING       2
 226
 227 /*
 228  * ci device struct
 229  */
 230 struct atomisp_device {
 231         struct pci_dev *pdev;
 232         struct device *dev;
 233         struct v4l2_device v4l2_dev;
 234         struct media_device media_dev;
 235         struct atomisp_platform_data *pdata;
 236         void *mmu_l1_base;
 237         struct pci_dev *pci_root;
 238         const struct firmware *firmware;
 239
 240         struct pm_qos_request pm_qos;
 241         s32 max_isr_latency;
 242
 243         /*
 244          * ISP modules
 245          * Multiple streams are represents by multiple
 246          * atomisp_sub_device instances
 247          */
 248         struct atomisp_sub_device *asd;
 249         /*
 250          * this will be assiged dyanamically.
 251          * For Merr/BTY(ISP2400), 2 streams are supported.
 252          */
 253         unsigned int num_of_streams;
 254
 255         struct atomisp_mipi_csi2_device csi2_port[ATOMISP_CAMERA_NR_PORTS];
 256         struct atomisp_tpg_device tpg;
 257         struct atomisp_file_device file_dev;
 258
 259         /* Purpose of mutex is to protect and serialize use of isp data
 260          * structures and css API calls. */
 261         struct rt_mutex mutex;
 262         /*
 263          * Serialise streamoff: mutex is dropped during streamoff to
 264          * cancel the watchdog queue. MUST be acquired BEFORE
 265          * "mutex".
 266          */
 267         struct mutex streamoff_mutex;
 268
 269         unsigned int input_cnt;
 270         struct atomisp_input_subdev inputs[ATOM_ISP_MAX_INPUTS];
 271         struct v4l2_subdev *flash;
 272         struct v4l2_subdev *motor;
 273
 274         struct atomisp_regs saved_regs;
 275         struct atomisp_sw_contex sw_contex;
 276         struct atomisp_css_env css_env;
 277
 278         /* isp timeout status flag */
 279         bool isp_timeout;
 280         bool isp_fatal_error;
 281         struct workqueue_struct *wdt_work_queue;
 282         struct work_struct wdt_work;
 283 #ifndef ISP2401
 284         atomic_t wdt_count;
 285 #endif
 286         atomic_t wdt_work_queued;
 287
 288         spinlock_t lock; /* Just for streaming below */
 289
 290         bool need_gfx_throttle;
 291
 292         unsigned int mipi_frame_size;
 293         const struct atomisp_dfs_config *dfs;
 294         unsigned int hpll_freq;
 295
 296         bool css_initialized;
 297 };
 298
 299 #define v4l2_dev_to_atomisp_device(dev) \
 300         container_of(dev, struct atomisp_device, v4l2_dev)
 301
 302 extern struct device *atomisp_dev;
 303
 304 #define atomisp_is_wdt_running(a) timer_pending(&(a)->wdt)
 305 #ifdef ISP2401
 306 extern void atomisp_wdt_refresh_pipe(struct atomisp_video_pipe *pipe,
 307                                         unsigned int delay);
 308 #endif
 309 extern void atomisp_wdt_refresh(struct atomisp_sub_device *asd, unsigned int delay);
 310 #ifndef ISP2401
 311 extern void atomisp_wdt_start(struct atomisp_sub_device *asd);
 312 #else
 313 extern void atomisp_wdt_start(struct atomisp_video_pipe *pipe);
 314 extern void atomisp_wdt_stop_pipe(struct atomisp_video_pipe *pipe, bool sync);
 315 #endif
 316 extern void atomisp_wdt_stop(struct atomisp_sub_device *asd, bool sync);
 317
 318 #endif /* __ATOMISP_INTERNAL_H__ */