drivers/media/i2c/m5mols/m5mols.h

   1 /* SPDX-License-Identifier: GPL-2.0-or-later */
   2 /*
   3  * Header for M-5MOLS 8M Pixel camera sensor with ISP
   4  *
   5  * Copyright (C) 2011 Samsung Electronics Co., Ltd.
   6  * Author: HeungJun Kim <riverful.kim@samsung.com>
   7  *
   8  * Copyright (C) 2009 Samsung Electronics Co., Ltd.
   9  * Author: Dongsoo Nathaniel Kim <dongsoo45.kim@samsung.com>
  10  */
  11
  12 #ifndef M5MOLS_H
  13 #define M5MOLS_H
  14
  15 #include <linux/sizes.h>
  16 #include <media/v4l2-subdev.h>
  17 #include "m5mols_reg.h"
  18
  19
  20 /* An amount of data transmitted in addition to the value
  21  * determined by CAPP_JPEG_SIZE_MAX register.
  22  */
  23 #define M5MOLS_JPEG_TAGS_SIZE           0x20000
  24 #define M5MOLS_MAIN_JPEG_SIZE_MAX       (5 * SZ_1M)
  25
  26 extern int m5mols_debug;
  27
  28 enum m5mols_restype {
  29         M5MOLS_RESTYPE_MONITOR,
  30         M5MOLS_RESTYPE_CAPTURE,
  31         M5MOLS_RESTYPE_MAX,
  32 };
  33
  34 /**
  35  * struct m5mols_resolution - structure for the resolution
  36  * @type: resolution type according to the pixel code
  37  * @width: width of the resolution
  38  * @height: height of the resolution
  39  * @reg: resolution preset register value
  40  */
  41 struct m5mols_resolution {
  42         u8 reg;
  43         enum m5mols_restype type;
  44         u16 width;
  45         u16 height;
  46 };
  47
  48 /**
  49  * struct m5mols_exif - structure for the EXIF information of M-5MOLS
  50  * @exposure_time: exposure time register value
  51  * @shutter_speed: speed of the shutter register value
  52  * @aperture: aperture register value
  53  * @exposure_bias: it calls also EV bias
  54  * @iso_speed: ISO register value
  55  * @flash: status register value of the flash
  56  * @sdr: status register value of the Subject Distance Range
  57  * @qval: not written exact meaning in document
  58  */
  59 struct m5mols_exif {
  60         u32 exposure_time;
  61         u32 shutter_speed;
  62         u32 aperture;
  63         u32 brightness;
  64         u32 exposure_bias;
  65         u16 iso_speed;
  66         u16 flash;
  67         u16 sdr;
  68         u16 qval;
  69 };
  70
  71 /**
  72  * struct m5mols_capture - Structure for the capture capability
  73  * @exif: EXIF information
  74  * @buf_size: internal JPEG frame buffer size, in bytes
  75  * @main: size in bytes of the main image
  76  * @thumb: size in bytes of the thumb image, if it was accompanied
  77  * @total: total size in bytes of the produced image
  78  */
  79 struct m5mols_capture {
  80         struct m5mols_exif exif;
  81         unsigned int buf_size;
  82         u32 main;
  83         u32 thumb;
  84         u32 total;
  85 };
  86
  87 /**
  88  * struct m5mols_scenemode - structure for the scenemode capability
  89  * @metering: metering light register value
  90  * @ev_bias: EV bias register value
  91  * @wb_mode: mode which means the WhiteBalance is Auto or Manual
  92  * @wb_preset: whitebalance preset register value in the Manual mode
  93  * @chroma_en: register value whether the Chroma capability is enabled or not
  94  * @chroma_lvl: chroma's level register value
  95  * @edge_en: register value Whether the Edge capability is enabled or not
  96  * @edge_lvl: edge's level register value
  97  * @af_range: Auto Focus's range
  98  * @fd_mode: Face Detection mode
  99  * @mcc: Multi-axis Color Conversion which means emotion color
 100  * @light: status of the Light
 101  * @flash: status of the Flash
 102  * @tone: Tone color which means Contrast
 103  * @iso: ISO register value
 104  * @capt_mode: Mode of the Image Stabilization while the camera capturing
 105  * @wdr: Wide Dynamic Range register value
 106  *
 107  * The each value according to each scenemode is recommended in the documents.
 108  */
 109 struct m5mols_scenemode {
 110         u8 metering;
 111         u8 ev_bias;
 112         u8 wb_mode;
 113         u8 wb_preset;
 114         u8 chroma_en;
 115         u8 chroma_lvl;
 116         u8 edge_en;
 117         u8 edge_lvl;
 118         u8 af_range;
 119         u8 fd_mode;
 120         u8 mcc;
 121         u8 light;
 122         u8 flash;
 123         u8 tone;
 124         u8 iso;
 125         u8 capt_mode;
 126         u8 wdr;
 127 };
 128
 129 /**
 130  * struct m5mols_version - firmware version information
 131  * @customer:   customer information
 132  * @project:    version of project information according to customer
 133  * @fw:         firmware revision
 134  * @hw:         hardware revision
 135  * @param:      version of the parameter
 136  * @awb:        Auto WhiteBalance algorithm version
 137  * @str:        information about manufacturer and packaging vendor
 138  * @af:         Auto Focus version
 139  *
 140  * The register offset starts the customer version at 0x0, and it ends
 141  * the awb version at 0x09. The customer, project information occupies 1 bytes
 142  * each. And also the fw, hw, param, awb each requires 2 bytes. The str is
 143  * unique string associated with firmware's version. It includes information
 144  * about manufacturer and the vendor of the sensor's packaging. The least
 145  * significant 2 bytes of the string indicate packaging manufacturer.
 146  */
 147 #define VERSION_STRING_SIZE     22
 148 struct m5mols_version {
 149         u8      customer;
 150         u8      project;
 151         u16     fw;
 152         u16     hw;
 153         u16     param;
 154         u16     awb;
 155         u8      str[VERSION_STRING_SIZE];
 156         u8      af;
 157 };
 158
 159 /**
 160  * struct m5mols_info - M-5MOLS driver data structure
 161  * @pdata: platform data
 162  * @sd: v4l-subdev instance
 163  * @pad: media pad
 164  * @irq_waitq: waitqueue for the capture
 165  * @irq_done: set to 1 in the interrupt handler
 166  * @handle: control handler
 167  * @auto_exposure: auto/manual exposure control
 168  * @exposure_bias: exposure compensation control
 169  * @exposure: manual exposure control
 170  * @metering: exposure metering control
 171  * @auto_iso: auto/manual ISO sensitivity control
 172  * @iso: manual ISO sensitivity control
 173  * @auto_wb: auto white balance control
 174  * @lock_3a: 3A lock control
 175  * @colorfx: color effect control
 176  * @saturation: saturation control
 177  * @zoom: zoom control
 178  * @wdr: wide dynamic range control
 179  * @stabilization: image stabilization control
 180  * @jpeg_quality: JPEG compression quality control
 181  * @set_power: optional power callback to the board code
 182  * @lock: mutex protecting the structure fields below
 183  * @ffmt: current fmt according to resolution type
 184  * @res_type: current resolution type
 185  * @ver: information of the version
 186  * @cap: the capture mode attributes
 187  * @isp_ready: 1 when the ISP controller has completed booting
 188  * @power: current sensor's power status
 189  * @ctrl_sync: 1 when the control handler state is restored in H/W
 190  * @resolution: register value for current resolution
 191  * @mode: register value for current operation mode
 192  */
 193 struct m5mols_info {
 194         const struct m5mols_platform_data *pdata;
 195         struct v4l2_subdev sd;
 196         struct media_pad pad;
 197
 198         wait_queue_head_t irq_waitq;
 199         atomic_t irq_done;
 200
 201         struct v4l2_ctrl_handler handle;
 202         struct {
 203                 /* exposure/exposure bias/auto exposure cluster */
 204                 struct v4l2_ctrl *auto_exposure;
 205                 struct v4l2_ctrl *exposure_bias;
 206                 struct v4l2_ctrl *exposure;
 207                 struct v4l2_ctrl *metering;
 208         };
 209         struct {
 210                 /* iso/auto iso cluster */
 211                 struct v4l2_ctrl *auto_iso;
 212                 struct v4l2_ctrl *iso;
 213         };
 214         struct v4l2_ctrl *auto_wb;
 215
 216         struct v4l2_ctrl *lock_3a;
 217         struct v4l2_ctrl *colorfx;
 218         struct v4l2_ctrl *saturation;
 219         struct v4l2_ctrl *zoom;
 220         struct v4l2_ctrl *wdr;
 221         struct v4l2_ctrl *stabilization;
 222         struct v4l2_ctrl *jpeg_quality;
 223
 224         int (*set_power)(struct device *dev, int on);
 225
 226         struct mutex lock;
 227
 228         struct v4l2_mbus_framefmt ffmt[M5MOLS_RESTYPE_MAX];
 229         int res_type;
 230
 231         struct m5mols_version ver;
 232         struct m5mols_capture cap;
 233
 234         unsigned int isp_ready:1;
 235         unsigned int power:1;
 236         unsigned int ctrl_sync:1;
 237
 238         u8 resolution;
 239         u8 mode;
 240 };
 241
 242 #define is_available_af(__info) (__info->ver.af)
 243 #define is_code(__code, __type) (__code == m5mols_default_ffmt[__type].code)
 244 #define is_manufacturer(__info, __manufacturer) \
 245                                 (__info->ver.str[0] == __manufacturer[0] && \
 246                                  __info->ver.str[1] == __manufacturer[1])
 247 /*
 248  * I2C operation of the M-5MOLS
 249  *
 250  * The I2C read operation of the M-5MOLS requires 2 messages. The first
 251  * message sends the information about the command, command category, and total
 252  * message size. The second message is used to retrieve the data specified in
 253  * the first message
 254  *
 255  *   1st message                                2nd message
 256  *   +-------+---+----------+-----+-------+     +------+------+------+------+
 257  *   | size1 | R | category | cmd | size2 |     | d[0] | d[1] | d[2] | d[3] |
 258  *   +-------+---+----------+-----+-------+     +------+------+------+------+
 259  *   - size1: message data size(5 in this case)
 260  *   - size2: desired buffer size of the 2nd message
 261  *   - d[0..3]: according to size2
 262  *
 263  * The I2C write operation needs just one message. The message includes
 264  * category, command, total size, and desired data.
 265  *
 266  *   1st message
 267  *   +-------+---+----------+-----+------+------+------+------+
 268  *   | size1 | W | category | cmd | d[0] | d[1] | d[2] | d[3] |
 269  *   +-------+---+----------+-----+------+------+------+------+
 270  *   - d[0..3]: according to size1
 271  */
 272 int m5mols_read_u8(struct v4l2_subdev *sd, u32 reg_comb, u8 *val);
 273 int m5mols_read_u16(struct v4l2_subdev *sd, u32 reg_comb, u16 *val);
 274 int m5mols_read_u32(struct v4l2_subdev *sd, u32 reg_comb, u32 *val);
 275 int m5mols_write(struct v4l2_subdev *sd, u32 reg_comb, u32 val);
 276
 277 int m5mols_busy_wait(struct v4l2_subdev *sd, u32 reg, u32 value, u32 mask,
 278                      int timeout);
 279
 280 /* Mask value for busy waiting until M-5MOLS I2C interface is initialized */
 281 #define M5MOLS_I2C_RDY_WAIT_FL          (1 << 16)
 282 /* ISP state transition timeout, in ms */
 283 #define M5MOLS_MODE_CHANGE_TIMEOUT      200
 284 #define M5MOLS_BUSY_WAIT_DEF_TIMEOUT    250
 285
 286 /*
 287  * Mode operation of the M-5MOLS
 288  *
 289  * Changing the mode of the M-5MOLS is needed right executing order.
 290  * There are three modes(PARAMETER, MONITOR, CAPTURE) which can be changed
 291  * by user. There are various categories associated with each mode.
 292  *
 293  * +============================================================+
 294  * | mode       | category                                      |
 295  * +============================================================+
 296  * | FLASH      | FLASH(only after Stand-by or Power-on)        |
 297  * | SYSTEM     | SYSTEM(only after sensor arm-booting)         |
 298  * | PARAMETER  | PARAMETER                                     |
 299  * | MONITOR    | MONITOR(preview), Auto Focus, Face Detection  |
 300  * | CAPTURE    | Single CAPTURE, Preview(recording)            |
 301  * +============================================================+
 302  *
 303  * The available executing order between each modes are as follows:
 304  *   PARAMETER <---> MONITOR <---> CAPTURE
 305  */
 306 int m5mols_set_mode(struct m5mols_info *info, u8 mode);
 307
 308 int m5mols_enable_interrupt(struct v4l2_subdev *sd, u8 reg);
 309 int m5mols_wait_interrupt(struct v4l2_subdev *sd, u8 condition, u32 timeout);
 310 int m5mols_restore_controls(struct m5mols_info *info);
 311 int m5mols_start_capture(struct m5mols_info *info);
 312 int m5mols_do_scenemode(struct m5mols_info *info, u8 mode);
 313 int m5mols_lock_3a(struct m5mols_info *info, bool lock);
 314 int m5mols_set_ctrl(struct v4l2_ctrl *ctrl);
 315 int m5mols_init_controls(struct v4l2_subdev *sd);
 316
 317 /* The firmware function */
 318 int m5mols_update_fw(struct v4l2_subdev *sd,
 319                      int (*set_power)(struct m5mols_info *, bool));
 320
 321 static inline struct m5mols_info *to_m5mols(struct v4l2_subdev *subdev)
 322 {
 323         return container_of(subdev, struct m5mols_info, sd);
 324 }
 325
 326 static inline struct v4l2_subdev *to_sd(struct v4l2_ctrl *ctrl)
 327 {
 328         struct m5mols_info *info = container_of(ctrl->handler,
 329                                                 struct m5mols_info, handle);
 330         return &info->sd;
 331 }
 332
 333 static inline void m5mols_set_ctrl_mode(struct v4l2_ctrl *ctrl,
 334                                         unsigned int mode)
 335 {
 336         ctrl->priv = (void *)(uintptr_t)mode;
 337 }
 338
 339 static inline unsigned int m5mols_get_ctrl_mode(struct v4l2_ctrl *ctrl)
 340 {
 341         return (unsigned int)(uintptr_t)ctrl->priv;
 342 }
 343
 344 #endif  /* M5MOLS_H */