HeungJun, Kim | bc12510 | 2011-05-20 02:27:28 -0300 | [diff] [blame] | 1 | /* |
| 2 | * Driver for M-5MOLS 8M Pixel camera sensor with ISP |
| 3 | * |
| 4 | * Copyright (C) 2011 Samsung Electronics Co., Ltd. |
HeungJun, Kim | c307011 | 2011-06-07 02:00:58 -0300 | [diff] [blame] | 5 | * Author: HeungJun Kim <riverful.kim@samsung.com> |
HeungJun, Kim | bc12510 | 2011-05-20 02:27:28 -0300 | [diff] [blame] | 6 | * |
| 7 | * Copyright (C) 2009 Samsung Electronics Co., Ltd. |
HeungJun, Kim | c307011 | 2011-06-07 02:00:58 -0300 | [diff] [blame] | 8 | * Author: Dongsoo Nathaniel Kim <dongsoo45.kim@samsung.com> |
HeungJun, Kim | bc12510 | 2011-05-20 02:27:28 -0300 | [diff] [blame] | 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 | #include <linux/i2c.h> |
| 17 | #include <linux/slab.h> |
| 18 | #include <linux/irq.h> |
| 19 | #include <linux/interrupt.h> |
| 20 | #include <linux/delay.h> |
| 21 | #include <linux/version.h> |
| 22 | #include <linux/gpio.h> |
| 23 | #include <linux/regulator/consumer.h> |
| 24 | #include <linux/videodev2.h> |
| 25 | #include <media/v4l2-ctrls.h> |
| 26 | #include <media/v4l2-device.h> |
| 27 | #include <media/v4l2-subdev.h> |
| 28 | #include <media/m5mols.h> |
| 29 | |
| 30 | #include "m5mols.h" |
| 31 | #include "m5mols_reg.h" |
| 32 | |
| 33 | int m5mols_debug; |
| 34 | module_param(m5mols_debug, int, 0644); |
| 35 | |
| 36 | #define MODULE_NAME "M5MOLS" |
| 37 | #define M5MOLS_I2C_CHECK_RETRY 500 |
| 38 | |
| 39 | /* The regulator consumer names for external voltage regulators */ |
| 40 | static struct regulator_bulk_data supplies[] = { |
| 41 | { |
| 42 | .supply = "core", /* ARM core power, 1.2V */ |
| 43 | }, { |
| 44 | .supply = "dig_18", /* digital power 1, 1.8V */ |
| 45 | }, { |
| 46 | .supply = "d_sensor", /* sensor power 1, 1.8V */ |
| 47 | }, { |
| 48 | .supply = "dig_28", /* digital power 2, 2.8V */ |
| 49 | }, { |
| 50 | .supply = "a_sensor", /* analog power */ |
| 51 | }, { |
| 52 | .supply = "dig_12", /* digital power 3, 1.2V */ |
| 53 | }, |
| 54 | }; |
| 55 | |
| 56 | static struct v4l2_mbus_framefmt m5mols_default_ffmt[M5MOLS_RESTYPE_MAX] = { |
| 57 | [M5MOLS_RESTYPE_MONITOR] = { |
| 58 | .width = 1920, |
| 59 | .height = 1080, |
| 60 | .code = V4L2_MBUS_FMT_VYUY8_2X8, |
| 61 | .field = V4L2_FIELD_NONE, |
| 62 | .colorspace = V4L2_COLORSPACE_JPEG, |
| 63 | }, |
| 64 | [M5MOLS_RESTYPE_CAPTURE] = { |
| 65 | .width = 1920, |
| 66 | .height = 1080, |
| 67 | .code = V4L2_MBUS_FMT_JPEG_1X8, |
| 68 | .field = V4L2_FIELD_NONE, |
| 69 | .colorspace = V4L2_COLORSPACE_JPEG, |
| 70 | }, |
| 71 | }; |
| 72 | #define SIZE_DEFAULT_FFMT ARRAY_SIZE(m5mols_default_ffmt) |
| 73 | |
| 74 | static const struct m5mols_resolution m5mols_reg_res[] = { |
| 75 | { 0x01, M5MOLS_RESTYPE_MONITOR, 128, 96 }, /* SUB-QCIF */ |
| 76 | { 0x03, M5MOLS_RESTYPE_MONITOR, 160, 120 }, /* QQVGA */ |
| 77 | { 0x05, M5MOLS_RESTYPE_MONITOR, 176, 144 }, /* QCIF */ |
| 78 | { 0x06, M5MOLS_RESTYPE_MONITOR, 176, 176 }, |
| 79 | { 0x08, M5MOLS_RESTYPE_MONITOR, 240, 320 }, /* QVGA */ |
| 80 | { 0x09, M5MOLS_RESTYPE_MONITOR, 320, 240 }, /* QVGA */ |
| 81 | { 0x0c, M5MOLS_RESTYPE_MONITOR, 240, 400 }, /* WQVGA */ |
| 82 | { 0x0d, M5MOLS_RESTYPE_MONITOR, 400, 240 }, /* WQVGA */ |
| 83 | { 0x0e, M5MOLS_RESTYPE_MONITOR, 352, 288 }, /* CIF */ |
| 84 | { 0x13, M5MOLS_RESTYPE_MONITOR, 480, 360 }, |
| 85 | { 0x15, M5MOLS_RESTYPE_MONITOR, 640, 360 }, /* qHD */ |
| 86 | { 0x17, M5MOLS_RESTYPE_MONITOR, 640, 480 }, /* VGA */ |
| 87 | { 0x18, M5MOLS_RESTYPE_MONITOR, 720, 480 }, |
| 88 | { 0x1a, M5MOLS_RESTYPE_MONITOR, 800, 480 }, /* WVGA */ |
| 89 | { 0x1f, M5MOLS_RESTYPE_MONITOR, 800, 600 }, /* SVGA */ |
| 90 | { 0x21, M5MOLS_RESTYPE_MONITOR, 1280, 720 }, /* HD */ |
| 91 | { 0x25, M5MOLS_RESTYPE_MONITOR, 1920, 1080 }, /* 1080p */ |
| 92 | { 0x29, M5MOLS_RESTYPE_MONITOR, 3264, 2448 }, /* 2.63fps 8M */ |
| 93 | { 0x39, M5MOLS_RESTYPE_MONITOR, 800, 602 }, /* AHS_MON debug */ |
| 94 | |
| 95 | { 0x02, M5MOLS_RESTYPE_CAPTURE, 320, 240 }, /* QVGA */ |
| 96 | { 0x04, M5MOLS_RESTYPE_CAPTURE, 400, 240 }, /* WQVGA */ |
| 97 | { 0x07, M5MOLS_RESTYPE_CAPTURE, 480, 360 }, |
| 98 | { 0x08, M5MOLS_RESTYPE_CAPTURE, 640, 360 }, /* qHD */ |
| 99 | { 0x09, M5MOLS_RESTYPE_CAPTURE, 640, 480 }, /* VGA */ |
| 100 | { 0x0a, M5MOLS_RESTYPE_CAPTURE, 800, 480 }, /* WVGA */ |
| 101 | { 0x10, M5MOLS_RESTYPE_CAPTURE, 1280, 720 }, /* HD */ |
| 102 | { 0x14, M5MOLS_RESTYPE_CAPTURE, 1280, 960 }, /* 1M */ |
| 103 | { 0x17, M5MOLS_RESTYPE_CAPTURE, 1600, 1200 }, /* 2M */ |
| 104 | { 0x19, M5MOLS_RESTYPE_CAPTURE, 1920, 1080 }, /* Full-HD */ |
| 105 | { 0x1a, M5MOLS_RESTYPE_CAPTURE, 2048, 1152 }, /* 3Mega */ |
| 106 | { 0x1b, M5MOLS_RESTYPE_CAPTURE, 2048, 1536 }, |
| 107 | { 0x1c, M5MOLS_RESTYPE_CAPTURE, 2560, 1440 }, /* 4Mega */ |
| 108 | { 0x1d, M5MOLS_RESTYPE_CAPTURE, 2560, 1536 }, |
| 109 | { 0x1f, M5MOLS_RESTYPE_CAPTURE, 2560, 1920 }, /* 5Mega */ |
| 110 | { 0x21, M5MOLS_RESTYPE_CAPTURE, 3264, 1836 }, /* 6Mega */ |
| 111 | { 0x22, M5MOLS_RESTYPE_CAPTURE, 3264, 1960 }, |
| 112 | { 0x25, M5MOLS_RESTYPE_CAPTURE, 3264, 2448 }, /* 8Mega */ |
| 113 | }; |
| 114 | |
| 115 | /** |
| 116 | * m5mols_swap_byte - an byte array to integer conversion function |
| 117 | * @size: size in bytes of I2C packet defined in the M-5MOLS datasheet |
| 118 | * |
| 119 | * Convert I2C data byte array with performing any required byte |
| 120 | * reordering to assure proper values for each data type, regardless |
| 121 | * of the architecture endianness. |
| 122 | */ |
| 123 | static u32 m5mols_swap_byte(u8 *data, u8 length) |
| 124 | { |
| 125 | if (length == 1) |
| 126 | return *data; |
| 127 | else if (length == 2) |
| 128 | return be16_to_cpu(*((u16 *)data)); |
| 129 | else |
| 130 | return be32_to_cpu(*((u32 *)data)); |
| 131 | } |
| 132 | |
| 133 | /** |
| 134 | * m5mols_read - I2C read function |
| 135 | * @reg: combination of size, category and command for the I2C packet |
HeungJun, Kim | 57644f5 | 2011-05-31 03:44:19 -0300 | [diff] [blame] | 136 | * @size: desired size of I2C packet |
HeungJun, Kim | bc12510 | 2011-05-20 02:27:28 -0300 | [diff] [blame] | 137 | * @val: read value |
| 138 | */ |
HeungJun, Kim | 57644f5 | 2011-05-31 03:44:19 -0300 | [diff] [blame] | 139 | static int m5mols_read(struct v4l2_subdev *sd, u32 size, u32 reg, u32 *val) |
HeungJun, Kim | bc12510 | 2011-05-20 02:27:28 -0300 | [diff] [blame] | 140 | { |
| 141 | struct i2c_client *client = v4l2_get_subdevdata(sd); |
| 142 | u8 rbuf[M5MOLS_I2C_MAX_SIZE + 1]; |
HeungJun, Kim | bc12510 | 2011-05-20 02:27:28 -0300 | [diff] [blame] | 143 | u8 category = I2C_CATEGORY(reg); |
| 144 | u8 cmd = I2C_COMMAND(reg); |
| 145 | struct i2c_msg msg[2]; |
| 146 | u8 wbuf[5]; |
| 147 | int ret; |
| 148 | |
| 149 | if (!client->adapter) |
| 150 | return -ENODEV; |
| 151 | |
HeungJun, Kim | bc12510 | 2011-05-20 02:27:28 -0300 | [diff] [blame] | 152 | msg[0].addr = client->addr; |
| 153 | msg[0].flags = 0; |
| 154 | msg[0].len = 5; |
| 155 | msg[0].buf = wbuf; |
| 156 | wbuf[0] = 5; |
| 157 | wbuf[1] = M5MOLS_BYTE_READ; |
| 158 | wbuf[2] = category; |
| 159 | wbuf[3] = cmd; |
| 160 | wbuf[4] = size; |
| 161 | |
| 162 | msg[1].addr = client->addr; |
| 163 | msg[1].flags = I2C_M_RD; |
| 164 | msg[1].len = size + 1; |
| 165 | msg[1].buf = rbuf; |
| 166 | |
| 167 | /* minimum stabilization time */ |
| 168 | usleep_range(200, 200); |
| 169 | |
| 170 | ret = i2c_transfer(client->adapter, msg, 2); |
| 171 | if (ret < 0) { |
| 172 | v4l2_err(sd, "read failed: size:%d cat:%02x cmd:%02x. %d\n", |
| 173 | size, category, cmd, ret); |
| 174 | return ret; |
| 175 | } |
| 176 | |
| 177 | *val = m5mols_swap_byte(&rbuf[1], size); |
| 178 | |
| 179 | return 0; |
| 180 | } |
| 181 | |
HeungJun, Kim | 57644f5 | 2011-05-31 03:44:19 -0300 | [diff] [blame] | 182 | int m5mols_read_u8(struct v4l2_subdev *sd, u32 reg, u8 *val) |
| 183 | { |
| 184 | u32 val_32; |
| 185 | int ret; |
| 186 | |
| 187 | if (I2C_SIZE(reg) != 1) { |
| 188 | v4l2_err(sd, "Wrong data size\n"); |
| 189 | return -EINVAL; |
| 190 | } |
| 191 | |
| 192 | ret = m5mols_read(sd, I2C_SIZE(reg), reg, &val_32); |
| 193 | if (ret) |
| 194 | return ret; |
| 195 | |
| 196 | *val = (u8)val_32; |
| 197 | return ret; |
| 198 | } |
| 199 | |
| 200 | int m5mols_read_u16(struct v4l2_subdev *sd, u32 reg, u16 *val) |
| 201 | { |
| 202 | u32 val_32; |
| 203 | int ret; |
| 204 | |
| 205 | if (I2C_SIZE(reg) != 2) { |
| 206 | v4l2_err(sd, "Wrong data size\n"); |
| 207 | return -EINVAL; |
| 208 | } |
| 209 | |
| 210 | ret = m5mols_read(sd, I2C_SIZE(reg), reg, &val_32); |
| 211 | if (ret) |
| 212 | return ret; |
| 213 | |
| 214 | *val = (u16)val_32; |
| 215 | return ret; |
| 216 | } |
| 217 | |
| 218 | int m5mols_read_u32(struct v4l2_subdev *sd, u32 reg, u32 *val) |
| 219 | { |
| 220 | if (I2C_SIZE(reg) != 4) { |
| 221 | v4l2_err(sd, "Wrong data size\n"); |
| 222 | return -EINVAL; |
| 223 | } |
| 224 | |
| 225 | return m5mols_read(sd, I2C_SIZE(reg), reg, val); |
| 226 | } |
| 227 | |
HeungJun, Kim | bc12510 | 2011-05-20 02:27:28 -0300 | [diff] [blame] | 228 | /** |
| 229 | * m5mols_write - I2C command write function |
| 230 | * @reg: combination of size, category and command for the I2C packet |
| 231 | * @val: value to write |
| 232 | */ |
| 233 | int m5mols_write(struct v4l2_subdev *sd, u32 reg, u32 val) |
| 234 | { |
| 235 | struct i2c_client *client = v4l2_get_subdevdata(sd); |
| 236 | u8 wbuf[M5MOLS_I2C_MAX_SIZE + 4]; |
| 237 | u8 category = I2C_CATEGORY(reg); |
| 238 | u8 cmd = I2C_COMMAND(reg); |
| 239 | u8 size = I2C_SIZE(reg); |
| 240 | u32 *buf = (u32 *)&wbuf[4]; |
| 241 | struct i2c_msg msg[1]; |
| 242 | int ret; |
| 243 | |
| 244 | if (!client->adapter) |
| 245 | return -ENODEV; |
| 246 | |
| 247 | if (size != 1 && size != 2 && size != 4) { |
| 248 | v4l2_err(sd, "Wrong data size\n"); |
| 249 | return -EINVAL; |
| 250 | } |
| 251 | |
| 252 | msg->addr = client->addr; |
| 253 | msg->flags = 0; |
| 254 | msg->len = (u16)size + 4; |
| 255 | msg->buf = wbuf; |
| 256 | wbuf[0] = size + 4; |
| 257 | wbuf[1] = M5MOLS_BYTE_WRITE; |
| 258 | wbuf[2] = category; |
| 259 | wbuf[3] = cmd; |
| 260 | |
| 261 | *buf = m5mols_swap_byte((u8 *)&val, size); |
| 262 | |
| 263 | usleep_range(200, 200); |
| 264 | |
| 265 | ret = i2c_transfer(client->adapter, msg, 1); |
| 266 | if (ret < 0) { |
| 267 | v4l2_err(sd, "write failed: size:%d cat:%02x cmd:%02x. %d\n", |
| 268 | size, category, cmd, ret); |
| 269 | return ret; |
| 270 | } |
| 271 | |
| 272 | return 0; |
| 273 | } |
| 274 | |
HeungJun, Kim | 57644f5 | 2011-05-31 03:44:19 -0300 | [diff] [blame] | 275 | int m5mols_busy(struct v4l2_subdev *sd, u8 category, u8 cmd, u8 mask) |
HeungJun, Kim | bc12510 | 2011-05-20 02:27:28 -0300 | [diff] [blame] | 276 | { |
HeungJun, Kim | 57644f5 | 2011-05-31 03:44:19 -0300 | [diff] [blame] | 277 | u8 busy; |
| 278 | int i; |
HeungJun, Kim | bc12510 | 2011-05-20 02:27:28 -0300 | [diff] [blame] | 279 | int ret; |
| 280 | |
| 281 | for (i = 0; i < M5MOLS_I2C_CHECK_RETRY; i++) { |
HeungJun, Kim | 57644f5 | 2011-05-31 03:44:19 -0300 | [diff] [blame] | 282 | ret = m5mols_read_u8(sd, I2C_REG(category, cmd, 1), &busy); |
HeungJun, Kim | bc12510 | 2011-05-20 02:27:28 -0300 | [diff] [blame] | 283 | if (ret < 0) |
| 284 | return ret; |
| 285 | if ((busy & mask) == mask) |
| 286 | return 0; |
| 287 | } |
| 288 | return -EBUSY; |
| 289 | } |
| 290 | |
| 291 | /** |
| 292 | * m5mols_enable_interrupt - Clear interrupt pending bits and unmask interrupts |
| 293 | * |
| 294 | * Before writing desired interrupt value the INT_FACTOR register should |
| 295 | * be read to clear pending interrupts. |
| 296 | */ |
HeungJun, Kim | 57644f5 | 2011-05-31 03:44:19 -0300 | [diff] [blame] | 297 | int m5mols_enable_interrupt(struct v4l2_subdev *sd, u8 reg) |
HeungJun, Kim | bc12510 | 2011-05-20 02:27:28 -0300 | [diff] [blame] | 298 | { |
| 299 | struct m5mols_info *info = to_m5mols(sd); |
HeungJun, Kim | 57644f5 | 2011-05-31 03:44:19 -0300 | [diff] [blame] | 300 | u8 mask = is_available_af(info) ? REG_INT_AF : 0; |
| 301 | u8 dummy; |
HeungJun, Kim | bc12510 | 2011-05-20 02:27:28 -0300 | [diff] [blame] | 302 | int ret; |
| 303 | |
HeungJun, Kim | 57644f5 | 2011-05-31 03:44:19 -0300 | [diff] [blame] | 304 | ret = m5mols_read_u8(sd, SYSTEM_INT_FACTOR, &dummy); |
HeungJun, Kim | bc12510 | 2011-05-20 02:27:28 -0300 | [diff] [blame] | 305 | if (!ret) |
| 306 | ret = m5mols_write(sd, SYSTEM_INT_ENABLE, reg & ~mask); |
| 307 | return ret; |
| 308 | } |
| 309 | |
| 310 | /** |
| 311 | * m5mols_reg_mode - Write the mode and check busy status |
| 312 | * |
| 313 | * It always accompanies a little delay changing the M-5MOLS mode, so it is |
| 314 | * needed checking current busy status to guarantee right mode. |
| 315 | */ |
HeungJun, Kim | 57644f5 | 2011-05-31 03:44:19 -0300 | [diff] [blame] | 316 | static int m5mols_reg_mode(struct v4l2_subdev *sd, u8 mode) |
HeungJun, Kim | bc12510 | 2011-05-20 02:27:28 -0300 | [diff] [blame] | 317 | { |
| 318 | int ret = m5mols_write(sd, SYSTEM_SYSMODE, mode); |
| 319 | |
| 320 | return ret ? ret : m5mols_busy(sd, CAT_SYSTEM, CAT0_SYSMODE, mode); |
| 321 | } |
| 322 | |
| 323 | /** |
| 324 | * m5mols_mode - manage the M-5MOLS's mode |
| 325 | * @mode: the required operation mode |
| 326 | * |
| 327 | * The commands of M-5MOLS are grouped into specific modes. Each functionality |
| 328 | * can be guaranteed only when the sensor is operating in mode which which |
| 329 | * a command belongs to. |
| 330 | */ |
HeungJun, Kim | 57644f5 | 2011-05-31 03:44:19 -0300 | [diff] [blame] | 331 | int m5mols_mode(struct m5mols_info *info, u8 mode) |
HeungJun, Kim | bc12510 | 2011-05-20 02:27:28 -0300 | [diff] [blame] | 332 | { |
| 333 | struct v4l2_subdev *sd = &info->sd; |
| 334 | int ret = -EINVAL; |
HeungJun, Kim | 57644f5 | 2011-05-31 03:44:19 -0300 | [diff] [blame] | 335 | u8 reg; |
HeungJun, Kim | bc12510 | 2011-05-20 02:27:28 -0300 | [diff] [blame] | 336 | |
| 337 | if (mode < REG_PARAMETER && mode > REG_CAPTURE) |
| 338 | return ret; |
| 339 | |
HeungJun, Kim | 57644f5 | 2011-05-31 03:44:19 -0300 | [diff] [blame] | 340 | ret = m5mols_read_u8(sd, SYSTEM_SYSMODE, ®); |
HeungJun, Kim | bc12510 | 2011-05-20 02:27:28 -0300 | [diff] [blame] | 341 | if ((!ret && reg == mode) || ret) |
| 342 | return ret; |
| 343 | |
| 344 | switch (reg) { |
| 345 | case REG_PARAMETER: |
| 346 | ret = m5mols_reg_mode(sd, REG_MONITOR); |
| 347 | if (!ret && mode == REG_MONITOR) |
| 348 | break; |
| 349 | if (!ret) |
| 350 | ret = m5mols_reg_mode(sd, REG_CAPTURE); |
| 351 | break; |
| 352 | |
| 353 | case REG_MONITOR: |
| 354 | if (mode == REG_PARAMETER) { |
| 355 | ret = m5mols_reg_mode(sd, REG_PARAMETER); |
| 356 | break; |
| 357 | } |
| 358 | |
| 359 | ret = m5mols_reg_mode(sd, REG_CAPTURE); |
| 360 | break; |
| 361 | |
| 362 | case REG_CAPTURE: |
| 363 | ret = m5mols_reg_mode(sd, REG_MONITOR); |
| 364 | if (!ret && mode == REG_MONITOR) |
| 365 | break; |
| 366 | if (!ret) |
| 367 | ret = m5mols_reg_mode(sd, REG_PARAMETER); |
| 368 | break; |
| 369 | |
| 370 | default: |
| 371 | v4l2_warn(sd, "Wrong mode: %d\n", mode); |
| 372 | } |
| 373 | |
| 374 | if (!ret) |
| 375 | info->mode = mode; |
| 376 | |
| 377 | return ret; |
| 378 | } |
| 379 | |
| 380 | /** |
| 381 | * m5mols_get_version - retrieve full revisions information of M-5MOLS |
| 382 | * |
| 383 | * The version information includes revisions of hardware and firmware, |
| 384 | * AutoFocus alghorithm version and the version string. |
| 385 | */ |
| 386 | static int m5mols_get_version(struct v4l2_subdev *sd) |
| 387 | { |
| 388 | struct m5mols_info *info = to_m5mols(sd); |
HeungJun, Kim | a6354d2 | 2011-06-07 01:59:44 -0300 | [diff] [blame] | 389 | struct m5mols_version *ver = &info->ver; |
| 390 | u8 *str = ver->str; |
| 391 | int i; |
HeungJun, Kim | bc12510 | 2011-05-20 02:27:28 -0300 | [diff] [blame] | 392 | int ret; |
| 393 | |
HeungJun, Kim | a6354d2 | 2011-06-07 01:59:44 -0300 | [diff] [blame] | 394 | ret = m5mols_read_u8(sd, SYSTEM_VER_CUSTOMER, &ver->customer); |
| 395 | if (!ret) |
| 396 | ret = m5mols_read_u8(sd, SYSTEM_VER_PROJECT, &ver->project); |
| 397 | if (!ret) |
| 398 | ret = m5mols_read_u16(sd, SYSTEM_VER_FIRMWARE, &ver->fw); |
| 399 | if (!ret) |
| 400 | ret = m5mols_read_u16(sd, SYSTEM_VER_HARDWARE, &ver->hw); |
| 401 | if (!ret) |
| 402 | ret = m5mols_read_u16(sd, SYSTEM_VER_PARAMETER, &ver->param); |
| 403 | if (!ret) |
| 404 | ret = m5mols_read_u16(sd, SYSTEM_VER_AWB, &ver->awb); |
| 405 | if (!ret) |
| 406 | ret = m5mols_read_u8(sd, AF_VERSION, &ver->af); |
HeungJun, Kim | bc12510 | 2011-05-20 02:27:28 -0300 | [diff] [blame] | 407 | if (ret) |
| 408 | return ret; |
| 409 | |
HeungJun, Kim | a6354d2 | 2011-06-07 01:59:44 -0300 | [diff] [blame] | 410 | for (i = 0; i < VERSION_STRING_SIZE; i++) { |
| 411 | ret = m5mols_read_u8(sd, SYSTEM_VER_STRING, &str[i]); |
| 412 | if (ret) |
| 413 | return ret; |
| 414 | } |
| 415 | |
| 416 | ver->fw = be16_to_cpu(ver->fw); |
| 417 | ver->hw = be16_to_cpu(ver->hw); |
| 418 | ver->param = be16_to_cpu(ver->param); |
| 419 | ver->awb = be16_to_cpu(ver->awb); |
HeungJun, Kim | bc12510 | 2011-05-20 02:27:28 -0300 | [diff] [blame] | 420 | |
| 421 | v4l2_info(sd, "Manufacturer\t[%s]\n", |
| 422 | is_manufacturer(info, REG_SAMSUNG_ELECTRO) ? |
| 423 | "Samsung Electro-Machanics" : |
| 424 | is_manufacturer(info, REG_SAMSUNG_OPTICS) ? |
| 425 | "Samsung Fiber-Optics" : |
| 426 | is_manufacturer(info, REG_SAMSUNG_TECHWIN) ? |
| 427 | "Samsung Techwin" : "None"); |
| 428 | v4l2_info(sd, "Customer/Project\t[0x%02x/0x%02x]\n", |
| 429 | info->ver.customer, info->ver.project); |
| 430 | |
| 431 | if (!is_available_af(info)) |
| 432 | v4l2_info(sd, "No support Auto Focus on this firmware\n"); |
| 433 | |
| 434 | return ret; |
| 435 | } |
| 436 | |
| 437 | /** |
| 438 | * __find_restype - Lookup M-5MOLS resolution type according to pixel code |
| 439 | * @code: pixel code |
| 440 | */ |
| 441 | static enum m5mols_restype __find_restype(enum v4l2_mbus_pixelcode code) |
| 442 | { |
| 443 | enum m5mols_restype type = M5MOLS_RESTYPE_MONITOR; |
| 444 | |
| 445 | do { |
| 446 | if (code == m5mols_default_ffmt[type].code) |
| 447 | return type; |
| 448 | } while (type++ != SIZE_DEFAULT_FFMT); |
| 449 | |
| 450 | return 0; |
| 451 | } |
| 452 | |
| 453 | /** |
| 454 | * __find_resolution - Lookup preset and type of M-5MOLS's resolution |
| 455 | * @mf: pixel format to find/negotiate the resolution preset for |
| 456 | * @type: M-5MOLS resolution type |
| 457 | * @resolution: M-5MOLS resolution preset register value |
| 458 | * |
| 459 | * Find nearest resolution matching resolution preset and adjust mf |
| 460 | * to supported values. |
| 461 | */ |
| 462 | static int __find_resolution(struct v4l2_subdev *sd, |
| 463 | struct v4l2_mbus_framefmt *mf, |
| 464 | enum m5mols_restype *type, |
| 465 | u32 *resolution) |
| 466 | { |
| 467 | const struct m5mols_resolution *fsize = &m5mols_reg_res[0]; |
| 468 | const struct m5mols_resolution *match = NULL; |
| 469 | enum m5mols_restype stype = __find_restype(mf->code); |
| 470 | int i = ARRAY_SIZE(m5mols_reg_res); |
| 471 | unsigned int min_err = ~0; |
| 472 | |
| 473 | while (i--) { |
| 474 | int err; |
| 475 | if (stype == fsize->type) { |
| 476 | err = abs(fsize->width - mf->width) |
| 477 | + abs(fsize->height - mf->height); |
| 478 | |
| 479 | if (err < min_err) { |
| 480 | min_err = err; |
| 481 | match = fsize; |
| 482 | } |
| 483 | } |
| 484 | fsize++; |
| 485 | } |
| 486 | if (match) { |
| 487 | mf->width = match->width; |
| 488 | mf->height = match->height; |
| 489 | *resolution = match->reg; |
| 490 | *type = stype; |
| 491 | return 0; |
| 492 | } |
| 493 | |
| 494 | return -EINVAL; |
| 495 | } |
| 496 | |
| 497 | static struct v4l2_mbus_framefmt *__find_format(struct m5mols_info *info, |
| 498 | struct v4l2_subdev_fh *fh, |
| 499 | enum v4l2_subdev_format_whence which, |
| 500 | enum m5mols_restype type) |
| 501 | { |
| 502 | if (which == V4L2_SUBDEV_FORMAT_TRY) |
| 503 | return fh ? v4l2_subdev_get_try_format(fh, 0) : NULL; |
| 504 | |
| 505 | return &info->ffmt[type]; |
| 506 | } |
| 507 | |
| 508 | static int m5mols_get_fmt(struct v4l2_subdev *sd, struct v4l2_subdev_fh *fh, |
| 509 | struct v4l2_subdev_format *fmt) |
| 510 | { |
| 511 | struct m5mols_info *info = to_m5mols(sd); |
| 512 | struct v4l2_mbus_framefmt *format; |
| 513 | |
| 514 | if (fmt->pad != 0) |
| 515 | return -EINVAL; |
| 516 | |
| 517 | format = __find_format(info, fh, fmt->which, info->res_type); |
| 518 | if (!format) |
| 519 | return -EINVAL; |
| 520 | |
| 521 | fmt->format = *format; |
| 522 | return 0; |
| 523 | } |
| 524 | |
| 525 | static int m5mols_set_fmt(struct v4l2_subdev *sd, struct v4l2_subdev_fh *fh, |
| 526 | struct v4l2_subdev_format *fmt) |
| 527 | { |
| 528 | struct m5mols_info *info = to_m5mols(sd); |
| 529 | struct v4l2_mbus_framefmt *format = &fmt->format; |
| 530 | struct v4l2_mbus_framefmt *sfmt; |
| 531 | enum m5mols_restype type; |
| 532 | u32 resolution = 0; |
| 533 | int ret; |
| 534 | |
| 535 | if (fmt->pad != 0) |
| 536 | return -EINVAL; |
| 537 | |
| 538 | ret = __find_resolution(sd, format, &type, &resolution); |
| 539 | if (ret < 0) |
| 540 | return ret; |
| 541 | |
| 542 | sfmt = __find_format(info, fh, fmt->which, type); |
| 543 | if (!sfmt) |
| 544 | return 0; |
| 545 | |
| 546 | *sfmt = m5mols_default_ffmt[type]; |
| 547 | sfmt->width = format->width; |
| 548 | sfmt->height = format->height; |
| 549 | |
| 550 | if (fmt->which == V4L2_SUBDEV_FORMAT_ACTIVE) { |
| 551 | info->resolution = resolution; |
| 552 | info->code = format->code; |
| 553 | info->res_type = type; |
| 554 | } |
| 555 | |
| 556 | return 0; |
| 557 | } |
| 558 | |
| 559 | static int m5mols_enum_mbus_code(struct v4l2_subdev *sd, |
| 560 | struct v4l2_subdev_fh *fh, |
| 561 | struct v4l2_subdev_mbus_code_enum *code) |
| 562 | { |
| 563 | if (!code || code->index >= SIZE_DEFAULT_FFMT) |
| 564 | return -EINVAL; |
| 565 | |
| 566 | code->code = m5mols_default_ffmt[code->index].code; |
| 567 | |
| 568 | return 0; |
| 569 | } |
| 570 | |
| 571 | static struct v4l2_subdev_pad_ops m5mols_pad_ops = { |
| 572 | .enum_mbus_code = m5mols_enum_mbus_code, |
| 573 | .get_fmt = m5mols_get_fmt, |
| 574 | .set_fmt = m5mols_set_fmt, |
| 575 | }; |
| 576 | |
| 577 | /** |
| 578 | * m5mols_sync_controls - Apply default scene mode and the current controls |
| 579 | * |
| 580 | * This is used only streaming for syncing between v4l2_ctrl framework and |
| 581 | * m5mols's controls. First, do the scenemode to the sensor, then call |
| 582 | * v4l2_ctrl_handler_setup. It can be same between some commands and |
| 583 | * the scenemode's in the default v4l2_ctrls. But, such commands of control |
| 584 | * should be prior to the scenemode's one. |
| 585 | */ |
| 586 | int m5mols_sync_controls(struct m5mols_info *info) |
| 587 | { |
| 588 | int ret = -EINVAL; |
| 589 | |
| 590 | if (!is_ctrl_synced(info)) { |
| 591 | ret = m5mols_do_scenemode(info, REG_SCENE_NORMAL); |
| 592 | if (ret) |
| 593 | return ret; |
| 594 | |
| 595 | v4l2_ctrl_handler_setup(&info->handle); |
| 596 | info->ctrl_sync = true; |
| 597 | } |
| 598 | |
| 599 | return ret; |
| 600 | } |
| 601 | |
| 602 | /** |
| 603 | * m5mols_start_monitor - Start the monitor mode |
| 604 | * |
| 605 | * Before applying the controls setup the resolution and frame rate |
| 606 | * in PARAMETER mode, and then switch over to MONITOR mode. |
| 607 | */ |
| 608 | static int m5mols_start_monitor(struct m5mols_info *info) |
| 609 | { |
| 610 | struct v4l2_subdev *sd = &info->sd; |
| 611 | int ret; |
| 612 | |
| 613 | ret = m5mols_mode(info, REG_PARAMETER); |
| 614 | if (!ret) |
| 615 | ret = m5mols_write(sd, PARM_MON_SIZE, info->resolution); |
| 616 | if (!ret) |
| 617 | ret = m5mols_write(sd, PARM_MON_FPS, REG_FPS_30); |
| 618 | if (!ret) |
| 619 | ret = m5mols_mode(info, REG_MONITOR); |
| 620 | if (!ret) |
| 621 | ret = m5mols_sync_controls(info); |
| 622 | |
| 623 | return ret; |
| 624 | } |
| 625 | |
| 626 | static int m5mols_s_stream(struct v4l2_subdev *sd, int enable) |
| 627 | { |
| 628 | struct m5mols_info *info = to_m5mols(sd); |
| 629 | |
| 630 | if (enable) { |
| 631 | int ret = -EINVAL; |
| 632 | |
| 633 | if (is_code(info->code, M5MOLS_RESTYPE_MONITOR)) |
| 634 | ret = m5mols_start_monitor(info); |
| 635 | if (is_code(info->code, M5MOLS_RESTYPE_CAPTURE)) |
| 636 | ret = m5mols_start_capture(info); |
| 637 | |
| 638 | return ret; |
| 639 | } |
| 640 | |
| 641 | return m5mols_mode(info, REG_PARAMETER); |
| 642 | } |
| 643 | |
| 644 | static const struct v4l2_subdev_video_ops m5mols_video_ops = { |
| 645 | .s_stream = m5mols_s_stream, |
| 646 | }; |
| 647 | |
| 648 | static int m5mols_s_ctrl(struct v4l2_ctrl *ctrl) |
| 649 | { |
| 650 | struct v4l2_subdev *sd = to_sd(ctrl); |
| 651 | struct m5mols_info *info = to_m5mols(sd); |
| 652 | int ret; |
| 653 | |
| 654 | info->mode_save = info->mode; |
| 655 | |
| 656 | ret = m5mols_mode(info, REG_PARAMETER); |
| 657 | if (!ret) |
| 658 | ret = m5mols_set_ctrl(ctrl); |
| 659 | if (!ret) |
| 660 | ret = m5mols_mode(info, info->mode_save); |
| 661 | |
| 662 | return ret; |
| 663 | } |
| 664 | |
| 665 | static const struct v4l2_ctrl_ops m5mols_ctrl_ops = { |
| 666 | .s_ctrl = m5mols_s_ctrl, |
| 667 | }; |
| 668 | |
| 669 | static int m5mols_sensor_power(struct m5mols_info *info, bool enable) |
| 670 | { |
| 671 | struct v4l2_subdev *sd = &info->sd; |
| 672 | struct i2c_client *client = v4l2_get_subdevdata(sd); |
| 673 | const struct m5mols_platform_data *pdata = info->pdata; |
| 674 | int ret; |
| 675 | |
| 676 | if (enable) { |
| 677 | if (is_powered(info)) |
| 678 | return 0; |
| 679 | |
| 680 | if (info->set_power) { |
| 681 | ret = info->set_power(&client->dev, 1); |
| 682 | if (ret) |
| 683 | return ret; |
| 684 | } |
| 685 | |
| 686 | ret = regulator_bulk_enable(ARRAY_SIZE(supplies), supplies); |
| 687 | if (ret) { |
| 688 | info->set_power(&client->dev, 0); |
| 689 | return ret; |
| 690 | } |
| 691 | |
| 692 | gpio_set_value(pdata->gpio_reset, !pdata->reset_polarity); |
| 693 | usleep_range(1000, 1000); |
| 694 | info->power = true; |
| 695 | |
| 696 | return ret; |
| 697 | } |
| 698 | |
| 699 | if (!is_powered(info)) |
| 700 | return 0; |
| 701 | |
| 702 | ret = regulator_bulk_disable(ARRAY_SIZE(supplies), supplies); |
| 703 | if (ret) |
| 704 | return ret; |
| 705 | |
| 706 | if (info->set_power) |
| 707 | info->set_power(&client->dev, 0); |
| 708 | |
| 709 | gpio_set_value(pdata->gpio_reset, pdata->reset_polarity); |
| 710 | usleep_range(1000, 1000); |
| 711 | info->power = false; |
| 712 | |
| 713 | return ret; |
| 714 | } |
| 715 | |
| 716 | /* m5mols_update_fw - optional firmware update routine */ |
| 717 | int __attribute__ ((weak)) m5mols_update_fw(struct v4l2_subdev *sd, |
| 718 | int (*set_power)(struct m5mols_info *, bool)) |
| 719 | { |
| 720 | return 0; |
| 721 | } |
| 722 | |
| 723 | /** |
| 724 | * m5mols_sensor_armboot - Booting M-5MOLS internal ARM core. |
| 725 | * |
| 726 | * Booting internal ARM core makes the M-5MOLS is ready for getting commands |
| 727 | * with I2C. It's the first thing to be done after it powered up. It must wait |
| 728 | * at least 520ms recommended by M-5MOLS datasheet, after executing arm booting. |
| 729 | */ |
| 730 | static int m5mols_sensor_armboot(struct v4l2_subdev *sd) |
| 731 | { |
| 732 | int ret; |
| 733 | |
| 734 | ret = m5mols_write(sd, FLASH_CAM_START, REG_START_ARM_BOOT); |
| 735 | if (ret < 0) |
| 736 | return ret; |
| 737 | |
| 738 | msleep(520); |
| 739 | |
| 740 | ret = m5mols_get_version(sd); |
| 741 | if (!ret) |
| 742 | ret = m5mols_update_fw(sd, m5mols_sensor_power); |
| 743 | if (ret) |
| 744 | return ret; |
| 745 | |
| 746 | v4l2_dbg(1, m5mols_debug, sd, "Success ARM Booting\n"); |
| 747 | |
| 748 | ret = m5mols_write(sd, PARM_INTERFACE, REG_INTERFACE_MIPI); |
| 749 | if (!ret) |
| 750 | ret = m5mols_enable_interrupt(sd, REG_INT_AF); |
| 751 | |
| 752 | return ret; |
| 753 | } |
| 754 | |
| 755 | static int m5mols_init_controls(struct m5mols_info *info) |
| 756 | { |
| 757 | struct v4l2_subdev *sd = &info->sd; |
| 758 | u16 max_exposure; |
| 759 | u16 step_zoom; |
| 760 | int ret; |
| 761 | |
| 762 | /* Determine value's range & step of controls for various FW version */ |
HeungJun, Kim | 57644f5 | 2011-05-31 03:44:19 -0300 | [diff] [blame] | 763 | ret = m5mols_read_u16(sd, AE_MAX_GAIN_MON, &max_exposure); |
HeungJun, Kim | bc12510 | 2011-05-20 02:27:28 -0300 | [diff] [blame] | 764 | if (!ret) |
| 765 | step_zoom = is_manufacturer(info, REG_SAMSUNG_OPTICS) ? 31 : 1; |
| 766 | if (ret) |
| 767 | return ret; |
| 768 | |
| 769 | v4l2_ctrl_handler_init(&info->handle, 6); |
| 770 | info->autowb = v4l2_ctrl_new_std(&info->handle, |
| 771 | &m5mols_ctrl_ops, V4L2_CID_AUTO_WHITE_BALANCE, |
| 772 | 0, 1, 1, 0); |
| 773 | info->saturation = v4l2_ctrl_new_std(&info->handle, |
| 774 | &m5mols_ctrl_ops, V4L2_CID_SATURATION, |
| 775 | 1, 5, 1, 3); |
| 776 | info->zoom = v4l2_ctrl_new_std(&info->handle, |
| 777 | &m5mols_ctrl_ops, V4L2_CID_ZOOM_ABSOLUTE, |
| 778 | 1, 70, step_zoom, 1); |
| 779 | info->exposure = v4l2_ctrl_new_std(&info->handle, |
| 780 | &m5mols_ctrl_ops, V4L2_CID_EXPOSURE, |
| 781 | 0, max_exposure, 1, (int)max_exposure/2); |
| 782 | info->colorfx = v4l2_ctrl_new_std_menu(&info->handle, |
| 783 | &m5mols_ctrl_ops, V4L2_CID_COLORFX, |
| 784 | 4, (1 << V4L2_COLORFX_BW), V4L2_COLORFX_NONE); |
| 785 | info->autoexposure = v4l2_ctrl_new_std_menu(&info->handle, |
| 786 | &m5mols_ctrl_ops, V4L2_CID_EXPOSURE_AUTO, |
| 787 | 1, 0, V4L2_EXPOSURE_MANUAL); |
| 788 | |
| 789 | sd->ctrl_handler = &info->handle; |
| 790 | if (info->handle.error) { |
| 791 | v4l2_err(sd, "Failed to initialize controls: %d\n", ret); |
| 792 | v4l2_ctrl_handler_free(&info->handle); |
| 793 | return info->handle.error; |
| 794 | } |
| 795 | |
| 796 | v4l2_ctrl_cluster(2, &info->autoexposure); |
| 797 | |
| 798 | return 0; |
| 799 | } |
| 800 | |
| 801 | /** |
| 802 | * m5mols_s_power - Main sensor power control function |
| 803 | * |
| 804 | * To prevent breaking the lens when the sensor is powered off the Soft-Landing |
| 805 | * algorithm is called where available. The Soft-Landing algorithm availability |
| 806 | * dependends on the firmware provider. |
| 807 | */ |
| 808 | static int m5mols_s_power(struct v4l2_subdev *sd, int on) |
| 809 | { |
| 810 | struct m5mols_info *info = to_m5mols(sd); |
| 811 | int ret; |
| 812 | |
| 813 | if (on) { |
| 814 | ret = m5mols_sensor_power(info, true); |
| 815 | if (!ret) |
| 816 | ret = m5mols_sensor_armboot(sd); |
| 817 | if (!ret) |
| 818 | ret = m5mols_init_controls(info); |
| 819 | if (ret) |
| 820 | return ret; |
| 821 | |
| 822 | info->ffmt[M5MOLS_RESTYPE_MONITOR] = |
| 823 | m5mols_default_ffmt[M5MOLS_RESTYPE_MONITOR]; |
| 824 | info->ffmt[M5MOLS_RESTYPE_CAPTURE] = |
| 825 | m5mols_default_ffmt[M5MOLS_RESTYPE_CAPTURE]; |
| 826 | return ret; |
| 827 | } |
| 828 | |
| 829 | if (is_manufacturer(info, REG_SAMSUNG_TECHWIN)) { |
| 830 | ret = m5mols_mode(info, REG_MONITOR); |
| 831 | if (!ret) |
| 832 | ret = m5mols_write(sd, AF_EXECUTE, REG_AF_STOP); |
| 833 | if (!ret) |
| 834 | ret = m5mols_write(sd, AF_MODE, REG_AF_POWEROFF); |
| 835 | if (!ret) |
| 836 | ret = m5mols_busy(sd, CAT_SYSTEM, CAT0_STATUS, |
| 837 | REG_AF_IDLE); |
| 838 | if (!ret) |
| 839 | v4l2_info(sd, "Success soft-landing lens\n"); |
| 840 | } |
| 841 | |
| 842 | ret = m5mols_sensor_power(info, false); |
| 843 | if (!ret) { |
| 844 | v4l2_ctrl_handler_free(&info->handle); |
| 845 | info->ctrl_sync = false; |
| 846 | } |
| 847 | |
| 848 | return ret; |
| 849 | } |
| 850 | |
| 851 | static int m5mols_log_status(struct v4l2_subdev *sd) |
| 852 | { |
| 853 | struct m5mols_info *info = to_m5mols(sd); |
| 854 | |
| 855 | v4l2_ctrl_handler_log_status(&info->handle, sd->name); |
| 856 | |
| 857 | return 0; |
| 858 | } |
| 859 | |
| 860 | static const struct v4l2_subdev_core_ops m5mols_core_ops = { |
| 861 | .s_power = m5mols_s_power, |
| 862 | .g_ctrl = v4l2_subdev_g_ctrl, |
| 863 | .s_ctrl = v4l2_subdev_s_ctrl, |
| 864 | .queryctrl = v4l2_subdev_queryctrl, |
| 865 | .querymenu = v4l2_subdev_querymenu, |
| 866 | .g_ext_ctrls = v4l2_subdev_g_ext_ctrls, |
| 867 | .try_ext_ctrls = v4l2_subdev_try_ext_ctrls, |
| 868 | .s_ext_ctrls = v4l2_subdev_s_ext_ctrls, |
| 869 | .log_status = m5mols_log_status, |
| 870 | }; |
| 871 | |
| 872 | static const struct v4l2_subdev_ops m5mols_ops = { |
| 873 | .core = &m5mols_core_ops, |
| 874 | .pad = &m5mols_pad_ops, |
| 875 | .video = &m5mols_video_ops, |
| 876 | }; |
| 877 | |
| 878 | static void m5mols_irq_work(struct work_struct *work) |
| 879 | { |
| 880 | struct m5mols_info *info = |
| 881 | container_of(work, struct m5mols_info, work_irq); |
| 882 | struct v4l2_subdev *sd = &info->sd; |
HeungJun, Kim | 57644f5 | 2011-05-31 03:44:19 -0300 | [diff] [blame] | 883 | u8 reg; |
HeungJun, Kim | bc12510 | 2011-05-20 02:27:28 -0300 | [diff] [blame] | 884 | int ret; |
| 885 | |
| 886 | if (!is_powered(info) || |
HeungJun, Kim | 57644f5 | 2011-05-31 03:44:19 -0300 | [diff] [blame] | 887 | m5mols_read_u8(sd, SYSTEM_INT_FACTOR, &info->interrupt)) |
HeungJun, Kim | bc12510 | 2011-05-20 02:27:28 -0300 | [diff] [blame] | 888 | return; |
| 889 | |
| 890 | switch (info->interrupt & REG_INT_MASK) { |
| 891 | case REG_INT_AF: |
| 892 | if (!is_available_af(info)) |
| 893 | break; |
HeungJun, Kim | 57644f5 | 2011-05-31 03:44:19 -0300 | [diff] [blame] | 894 | ret = m5mols_read_u8(sd, AF_STATUS, ®); |
HeungJun, Kim | bc12510 | 2011-05-20 02:27:28 -0300 | [diff] [blame] | 895 | v4l2_dbg(2, m5mols_debug, sd, "AF %s\n", |
| 896 | reg == REG_AF_FAIL ? "Failed" : |
| 897 | reg == REG_AF_SUCCESS ? "Success" : |
| 898 | reg == REG_AF_IDLE ? "Idle" : "Busy"); |
| 899 | break; |
| 900 | case REG_INT_CAPTURE: |
| 901 | if (!test_and_set_bit(ST_CAPT_IRQ, &info->flags)) |
| 902 | wake_up_interruptible(&info->irq_waitq); |
| 903 | |
| 904 | v4l2_dbg(2, m5mols_debug, sd, "CAPTURE\n"); |
| 905 | break; |
| 906 | default: |
| 907 | v4l2_dbg(2, m5mols_debug, sd, "Undefined: %02x\n", reg); |
| 908 | break; |
| 909 | }; |
| 910 | } |
| 911 | |
| 912 | static irqreturn_t m5mols_irq_handler(int irq, void *data) |
| 913 | { |
| 914 | struct v4l2_subdev *sd = data; |
| 915 | struct m5mols_info *info = to_m5mols(sd); |
| 916 | |
| 917 | schedule_work(&info->work_irq); |
| 918 | |
| 919 | return IRQ_HANDLED; |
| 920 | } |
| 921 | |
| 922 | static int __devinit m5mols_probe(struct i2c_client *client, |
| 923 | const struct i2c_device_id *id) |
| 924 | { |
| 925 | const struct m5mols_platform_data *pdata = client->dev.platform_data; |
| 926 | struct m5mols_info *info; |
| 927 | struct v4l2_subdev *sd; |
| 928 | int ret; |
| 929 | |
| 930 | if (pdata == NULL) { |
| 931 | dev_err(&client->dev, "No platform data\n"); |
| 932 | return -EINVAL; |
| 933 | } |
| 934 | |
| 935 | if (!gpio_is_valid(pdata->gpio_reset)) { |
| 936 | dev_err(&client->dev, "No valid RESET GPIO specified\n"); |
| 937 | return -EINVAL; |
| 938 | } |
| 939 | |
| 940 | if (!pdata->irq) { |
| 941 | dev_err(&client->dev, "Interrupt not assigned\n"); |
| 942 | return -EINVAL; |
| 943 | } |
| 944 | |
| 945 | info = kzalloc(sizeof(struct m5mols_info), GFP_KERNEL); |
| 946 | if (!info) |
| 947 | return -ENOMEM; |
| 948 | |
| 949 | info->pdata = pdata; |
| 950 | info->set_power = pdata->set_power; |
| 951 | |
| 952 | ret = gpio_request(pdata->gpio_reset, "M5MOLS_NRST"); |
| 953 | if (ret) { |
| 954 | dev_err(&client->dev, "Failed to request gpio: %d\n", ret); |
| 955 | goto out_free; |
| 956 | } |
| 957 | gpio_direction_output(pdata->gpio_reset, pdata->reset_polarity); |
| 958 | |
| 959 | ret = regulator_bulk_get(&client->dev, ARRAY_SIZE(supplies), supplies); |
| 960 | if (ret) { |
| 961 | dev_err(&client->dev, "Failed to get regulators: %d\n", ret); |
| 962 | goto out_gpio; |
| 963 | } |
| 964 | |
| 965 | sd = &info->sd; |
| 966 | strlcpy(sd->name, MODULE_NAME, sizeof(sd->name)); |
| 967 | v4l2_i2c_subdev_init(sd, client, &m5mols_ops); |
| 968 | |
| 969 | info->pad.flags = MEDIA_PAD_FL_SOURCE; |
| 970 | ret = media_entity_init(&sd->entity, 1, &info->pad, 0); |
| 971 | if (ret < 0) |
| 972 | goto out_reg; |
| 973 | sd->entity.type = MEDIA_ENT_T_V4L2_SUBDEV_SENSOR; |
| 974 | |
| 975 | init_waitqueue_head(&info->irq_waitq); |
| 976 | INIT_WORK(&info->work_irq, m5mols_irq_work); |
| 977 | ret = request_irq(pdata->irq, m5mols_irq_handler, |
| 978 | IRQF_TRIGGER_RISING, MODULE_NAME, sd); |
| 979 | if (ret) { |
| 980 | dev_err(&client->dev, "Interrupt request failed: %d\n", ret); |
| 981 | goto out_me; |
| 982 | } |
| 983 | info->res_type = M5MOLS_RESTYPE_MONITOR; |
| 984 | return 0; |
| 985 | out_me: |
| 986 | media_entity_cleanup(&sd->entity); |
| 987 | out_reg: |
| 988 | regulator_bulk_free(ARRAY_SIZE(supplies), supplies); |
| 989 | out_gpio: |
| 990 | gpio_free(pdata->gpio_reset); |
| 991 | out_free: |
| 992 | kfree(info); |
| 993 | return ret; |
| 994 | } |
| 995 | |
| 996 | static int __devexit m5mols_remove(struct i2c_client *client) |
| 997 | { |
| 998 | struct v4l2_subdev *sd = i2c_get_clientdata(client); |
| 999 | struct m5mols_info *info = to_m5mols(sd); |
| 1000 | |
| 1001 | v4l2_device_unregister_subdev(sd); |
| 1002 | free_irq(info->pdata->irq, sd); |
| 1003 | |
| 1004 | regulator_bulk_free(ARRAY_SIZE(supplies), supplies); |
| 1005 | gpio_free(info->pdata->gpio_reset); |
| 1006 | media_entity_cleanup(&sd->entity); |
| 1007 | kfree(info); |
| 1008 | return 0; |
| 1009 | } |
| 1010 | |
| 1011 | static const struct i2c_device_id m5mols_id[] = { |
| 1012 | { MODULE_NAME, 0 }, |
| 1013 | { }, |
| 1014 | }; |
| 1015 | MODULE_DEVICE_TABLE(i2c, m5mols_id); |
| 1016 | |
| 1017 | static struct i2c_driver m5mols_i2c_driver = { |
| 1018 | .driver = { |
| 1019 | .name = MODULE_NAME, |
| 1020 | }, |
| 1021 | .probe = m5mols_probe, |
| 1022 | .remove = __devexit_p(m5mols_remove), |
| 1023 | .id_table = m5mols_id, |
| 1024 | }; |
| 1025 | |
| 1026 | static int __init m5mols_mod_init(void) |
| 1027 | { |
| 1028 | return i2c_add_driver(&m5mols_i2c_driver); |
| 1029 | } |
| 1030 | |
| 1031 | static void __exit m5mols_mod_exit(void) |
| 1032 | { |
| 1033 | i2c_del_driver(&m5mols_i2c_driver); |
| 1034 | } |
| 1035 | |
| 1036 | module_init(m5mols_mod_init); |
| 1037 | module_exit(m5mols_mod_exit); |
| 1038 | |
| 1039 | MODULE_AUTHOR("HeungJun Kim <riverful.kim@samsung.com>"); |
| 1040 | MODULE_AUTHOR("Dongsoo Kim <dongsoo45.kim@samsung.com>"); |
| 1041 | MODULE_DESCRIPTION("Fujitsu M-5MOLS 8M Pixel camera driver"); |
| 1042 | MODULE_LICENSE("GPL"); |