drivers/media/video/m5mols/m5mols.h

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