1 // SPDX-License-Identifier: GPL-2.0-only 2 /* 3 * Driver for MT9M111/MT9M112/MT9M131 CMOS Image Sensor from Micron/Aptina 4 * 5 * Copyright (C) 2008, Robert Jarzmik <robert.jarzmik@free.fr> 6 */ 7 #include <linux/clk.h> 8 #include <linux/videodev2.h> 9 #include <linux/slab.h> 10 #include <linux/i2c.h> 11 #include <linux/log2.h> 12 #include <linux/gpio.h> 13 #include <linux/delay.h> 14 #include <linux/regulator/consumer.h> 15 #include <linux/v4l2-mediabus.h> 16 #include <linux/module.h> 17 #include <linux/property.h> 18 19 #include <media/v4l2-async.h> 20 #include <media/v4l2-common.h> 21 #include <media/v4l2-ctrls.h> 22 #include <media/v4l2-device.h> 23 #include <media/v4l2-event.h> 24 #include <media/v4l2-fwnode.h> 25 26 /* 27 * MT9M111, MT9M112 and MT9M131: 28 * i2c address is 0x48 or 0x5d (depending on SADDR pin) 29 * The platform has to define struct i2c_board_info objects and link to them 30 * from struct soc_camera_host_desc 31 */ 32 33 /* 34 * Sensor core register addresses (0x000..0x0ff) 35 */ 36 #define MT9M111_CHIP_VERSION 0x000 37 #define MT9M111_ROW_START 0x001 38 #define MT9M111_COLUMN_START 0x002 39 #define MT9M111_WINDOW_HEIGHT 0x003 40 #define MT9M111_WINDOW_WIDTH 0x004 41 #define MT9M111_HORIZONTAL_BLANKING_B 0x005 42 #define MT9M111_VERTICAL_BLANKING_B 0x006 43 #define MT9M111_HORIZONTAL_BLANKING_A 0x007 44 #define MT9M111_VERTICAL_BLANKING_A 0x008 45 #define MT9M111_SHUTTER_WIDTH 0x009 46 #define MT9M111_ROW_SPEED 0x00a 47 #define MT9M111_EXTRA_DELAY 0x00b 48 #define MT9M111_SHUTTER_DELAY 0x00c 49 #define MT9M111_RESET 0x00d 50 #define MT9M111_READ_MODE_B 0x020 51 #define MT9M111_READ_MODE_A 0x021 52 #define MT9M111_FLASH_CONTROL 0x023 53 #define MT9M111_GREEN1_GAIN 0x02b 54 #define MT9M111_BLUE_GAIN 0x02c 55 #define MT9M111_RED_GAIN 0x02d 56 #define MT9M111_GREEN2_GAIN 0x02e 57 #define MT9M111_GLOBAL_GAIN 0x02f 58 #define MT9M111_CONTEXT_CONTROL 0x0c8 59 #define MT9M111_PAGE_MAP 0x0f0 60 #define MT9M111_BYTE_WISE_ADDR 0x0f1 61 62 #define MT9M111_RESET_SYNC_CHANGES (1 << 15) 63 #define MT9M111_RESET_RESTART_BAD_FRAME (1 << 9) 64 #define MT9M111_RESET_SHOW_BAD_FRAMES (1 << 8) 65 #define MT9M111_RESET_RESET_SOC (1 << 5) 66 #define MT9M111_RESET_OUTPUT_DISABLE (1 << 4) 67 #define MT9M111_RESET_CHIP_ENABLE (1 << 3) 68 #define MT9M111_RESET_ANALOG_STANDBY (1 << 2) 69 #define MT9M111_RESET_RESTART_FRAME (1 << 1) 70 #define MT9M111_RESET_RESET_MODE (1 << 0) 71 72 #define MT9M111_RM_FULL_POWER_RD (0 << 10) 73 #define MT9M111_RM_LOW_POWER_RD (1 << 10) 74 #define MT9M111_RM_COL_SKIP_4X (1 << 5) 75 #define MT9M111_RM_ROW_SKIP_4X (1 << 4) 76 #define MT9M111_RM_COL_SKIP_2X (1 << 3) 77 #define MT9M111_RM_ROW_SKIP_2X (1 << 2) 78 #define MT9M111_RMB_MIRROR_COLS (1 << 1) 79 #define MT9M111_RMB_MIRROR_ROWS (1 << 0) 80 #define MT9M111_CTXT_CTRL_RESTART (1 << 15) 81 #define MT9M111_CTXT_CTRL_DEFECTCOR_B (1 << 12) 82 #define MT9M111_CTXT_CTRL_RESIZE_B (1 << 10) 83 #define MT9M111_CTXT_CTRL_CTRL2_B (1 << 9) 84 #define MT9M111_CTXT_CTRL_GAMMA_B (1 << 8) 85 #define MT9M111_CTXT_CTRL_XENON_EN (1 << 7) 86 #define MT9M111_CTXT_CTRL_READ_MODE_B (1 << 3) 87 #define MT9M111_CTXT_CTRL_LED_FLASH_EN (1 << 2) 88 #define MT9M111_CTXT_CTRL_VBLANK_SEL_B (1 << 1) 89 #define MT9M111_CTXT_CTRL_HBLANK_SEL_B (1 << 0) 90 91 /* 92 * Colorpipe register addresses (0x100..0x1ff) 93 */ 94 #define MT9M111_OPER_MODE_CTRL 0x106 95 #define MT9M111_OUTPUT_FORMAT_CTRL 0x108 96 #define MT9M111_TPG_CTRL 0x148 97 #define MT9M111_REDUCER_XZOOM_B 0x1a0 98 #define MT9M111_REDUCER_XSIZE_B 0x1a1 99 #define MT9M111_REDUCER_YZOOM_B 0x1a3 100 #define MT9M111_REDUCER_YSIZE_B 0x1a4 101 #define MT9M111_REDUCER_XZOOM_A 0x1a6 102 #define MT9M111_REDUCER_XSIZE_A 0x1a7 103 #define MT9M111_REDUCER_YZOOM_A 0x1a9 104 #define MT9M111_REDUCER_YSIZE_A 0x1aa 105 #define MT9M111_EFFECTS_MODE 0x1e2 106 107 #define MT9M111_OUTPUT_FORMAT_CTRL2_A 0x13a 108 #define MT9M111_OUTPUT_FORMAT_CTRL2_B 0x19b 109 110 #define MT9M111_OPMODE_AUTOEXPO_EN (1 << 14) 111 #define MT9M111_OPMODE_AUTOWHITEBAL_EN (1 << 1) 112 #define MT9M111_OUTFMT_FLIP_BAYER_COL (1 << 9) 113 #define MT9M111_OUTFMT_FLIP_BAYER_ROW (1 << 8) 114 #define MT9M111_OUTFMT_PROCESSED_BAYER (1 << 14) 115 #define MT9M111_OUTFMT_BYPASS_IFP (1 << 10) 116 #define MT9M111_OUTFMT_INV_PIX_CLOCK (1 << 9) 117 #define MT9M111_OUTFMT_RGB (1 << 8) 118 #define MT9M111_OUTFMT_RGB565 (0 << 6) 119 #define MT9M111_OUTFMT_RGB555 (1 << 6) 120 #define MT9M111_OUTFMT_RGB444x (2 << 6) 121 #define MT9M111_OUTFMT_RGBx444 (3 << 6) 122 #define MT9M111_OUTFMT_TST_RAMP_OFF (0 << 4) 123 #define MT9M111_OUTFMT_TST_RAMP_COL (1 << 4) 124 #define MT9M111_OUTFMT_TST_RAMP_ROW (2 << 4) 125 #define MT9M111_OUTFMT_TST_RAMP_FRAME (3 << 4) 126 #define MT9M111_OUTFMT_SHIFT_3_UP (1 << 3) 127 #define MT9M111_OUTFMT_AVG_CHROMA (1 << 2) 128 #define MT9M111_OUTFMT_SWAP_YCbCr_C_Y_RGB_EVEN (1 << 1) 129 #define MT9M111_OUTFMT_SWAP_YCbCr_Cb_Cr_RGB_R_B (1 << 0) 130 #define MT9M111_TPG_SEL_MASK GENMASK(2, 0) 131 #define MT9M111_EFFECTS_MODE_MASK GENMASK(2, 0) 132 #define MT9M111_RM_PWR_MASK BIT(10) 133 #define MT9M111_RM_SKIP2_MASK GENMASK(3, 2) 134 135 /* 136 * Camera control register addresses (0x200..0x2ff not implemented) 137 */ 138 139 #define reg_read(reg) mt9m111_reg_read(client, MT9M111_##reg) 140 #define reg_write(reg, val) mt9m111_reg_write(client, MT9M111_##reg, (val)) 141 #define reg_set(reg, val) mt9m111_reg_set(client, MT9M111_##reg, (val)) 142 #define reg_clear(reg, val) mt9m111_reg_clear(client, MT9M111_##reg, (val)) 143 #define reg_mask(reg, val, mask) mt9m111_reg_mask(client, MT9M111_##reg, \ 144 (val), (mask)) 145 146 #define MT9M111_MIN_DARK_ROWS 8 147 #define MT9M111_MIN_DARK_COLS 26 148 #define MT9M111_MAX_HEIGHT 1024 149 #define MT9M111_MAX_WIDTH 1280 150 151 struct mt9m111_context { 152 u16 read_mode; 153 u16 blanking_h; 154 u16 blanking_v; 155 u16 reducer_xzoom; 156 u16 reducer_yzoom; 157 u16 reducer_xsize; 158 u16 reducer_ysize; 159 u16 output_fmt_ctrl2; 160 u16 control; 161 }; 162 163 static struct mt9m111_context context_a = { 164 .read_mode = MT9M111_READ_MODE_A, 165 .blanking_h = MT9M111_HORIZONTAL_BLANKING_A, 166 .blanking_v = MT9M111_VERTICAL_BLANKING_A, 167 .reducer_xzoom = MT9M111_REDUCER_XZOOM_A, 168 .reducer_yzoom = MT9M111_REDUCER_YZOOM_A, 169 .reducer_xsize = MT9M111_REDUCER_XSIZE_A, 170 .reducer_ysize = MT9M111_REDUCER_YSIZE_A, 171 .output_fmt_ctrl2 = MT9M111_OUTPUT_FORMAT_CTRL2_A, 172 .control = MT9M111_CTXT_CTRL_RESTART, 173 }; 174 175 static struct mt9m111_context context_b = { 176 .read_mode = MT9M111_READ_MODE_B, 177 .blanking_h = MT9M111_HORIZONTAL_BLANKING_B, 178 .blanking_v = MT9M111_VERTICAL_BLANKING_B, 179 .reducer_xzoom = MT9M111_REDUCER_XZOOM_B, 180 .reducer_yzoom = MT9M111_REDUCER_YZOOM_B, 181 .reducer_xsize = MT9M111_REDUCER_XSIZE_B, 182 .reducer_ysize = MT9M111_REDUCER_YSIZE_B, 183 .output_fmt_ctrl2 = MT9M111_OUTPUT_FORMAT_CTRL2_B, 184 .control = MT9M111_CTXT_CTRL_RESTART | 185 MT9M111_CTXT_CTRL_DEFECTCOR_B | MT9M111_CTXT_CTRL_RESIZE_B | 186 MT9M111_CTXT_CTRL_CTRL2_B | MT9M111_CTXT_CTRL_GAMMA_B | 187 MT9M111_CTXT_CTRL_READ_MODE_B | MT9M111_CTXT_CTRL_VBLANK_SEL_B | 188 MT9M111_CTXT_CTRL_HBLANK_SEL_B, 189 }; 190 191 /* MT9M111 has only one fixed colorspace per pixelcode */ 192 struct mt9m111_datafmt { 193 u32 code; 194 enum v4l2_colorspace colorspace; 195 }; 196 197 static const struct mt9m111_datafmt mt9m111_colour_fmts[] = { 198 {MEDIA_BUS_FMT_YUYV8_2X8, V4L2_COLORSPACE_SRGB}, 199 {MEDIA_BUS_FMT_YVYU8_2X8, V4L2_COLORSPACE_SRGB}, 200 {MEDIA_BUS_FMT_UYVY8_2X8, V4L2_COLORSPACE_SRGB}, 201 {MEDIA_BUS_FMT_VYUY8_2X8, V4L2_COLORSPACE_SRGB}, 202 {MEDIA_BUS_FMT_RGB555_2X8_PADHI_LE, V4L2_COLORSPACE_SRGB}, 203 {MEDIA_BUS_FMT_RGB555_2X8_PADHI_BE, V4L2_COLORSPACE_SRGB}, 204 {MEDIA_BUS_FMT_RGB565_2X8_LE, V4L2_COLORSPACE_SRGB}, 205 {MEDIA_BUS_FMT_RGB565_2X8_BE, V4L2_COLORSPACE_SRGB}, 206 {MEDIA_BUS_FMT_BGR565_2X8_LE, V4L2_COLORSPACE_SRGB}, 207 {MEDIA_BUS_FMT_BGR565_2X8_BE, V4L2_COLORSPACE_SRGB}, 208 {MEDIA_BUS_FMT_SBGGR8_1X8, V4L2_COLORSPACE_SRGB}, 209 {MEDIA_BUS_FMT_SBGGR10_2X8_PADHI_LE, V4L2_COLORSPACE_SRGB}, 210 }; 211 212 enum mt9m111_mode_id { 213 MT9M111_MODE_SXGA_8FPS, 214 MT9M111_MODE_SXGA_15FPS, 215 MT9M111_MODE_QSXGA_30FPS, 216 MT9M111_NUM_MODES, 217 }; 218 219 struct mt9m111_mode_info { 220 unsigned int sensor_w; 221 unsigned int sensor_h; 222 unsigned int max_image_w; 223 unsigned int max_image_h; 224 unsigned int max_fps; 225 unsigned int reg_val; 226 unsigned int reg_mask; 227 }; 228 229 struct mt9m111 { 230 struct v4l2_subdev subdev; 231 struct v4l2_ctrl_handler hdl; 232 struct v4l2_ctrl *gain; 233 struct mt9m111_context *ctx; 234 struct v4l2_rect rect; /* cropping rectangle */ 235 struct clk *clk; 236 unsigned int width; /* output */ 237 unsigned int height; /* sizes */ 238 struct v4l2_fract frame_interval; 239 const struct mt9m111_mode_info *current_mode; 240 struct mutex power_lock; /* lock to protect power_count */ 241 int power_count; 242 const struct mt9m111_datafmt *fmt; 243 int lastpage; /* PageMap cache value */ 244 struct regulator *regulator; 245 bool is_streaming; 246 /* user point of view - 0: falling 1: rising edge */ 247 unsigned int pclk_sample:1; 248 #ifdef CONFIG_MEDIA_CONTROLLER 249 struct media_pad pad; 250 #endif 251 }; 252 253 static const struct mt9m111_mode_info mt9m111_mode_data[MT9M111_NUM_MODES] = { 254 [MT9M111_MODE_SXGA_8FPS] = { 255 .sensor_w = 1280, 256 .sensor_h = 1024, 257 .max_image_w = 1280, 258 .max_image_h = 1024, 259 .max_fps = 8, 260 .reg_val = MT9M111_RM_LOW_POWER_RD, 261 .reg_mask = MT9M111_RM_PWR_MASK | MT9M111_RM_SKIP2_MASK, 262 }, 263 [MT9M111_MODE_SXGA_15FPS] = { 264 .sensor_w = 1280, 265 .sensor_h = 1024, 266 .max_image_w = 1280, 267 .max_image_h = 1024, 268 .max_fps = 15, 269 .reg_val = MT9M111_RM_FULL_POWER_RD, 270 .reg_mask = MT9M111_RM_PWR_MASK | MT9M111_RM_SKIP2_MASK, 271 }, 272 [MT9M111_MODE_QSXGA_30FPS] = { 273 .sensor_w = 1280, 274 .sensor_h = 1024, 275 .max_image_w = 640, 276 .max_image_h = 512, 277 .max_fps = 30, 278 .reg_val = MT9M111_RM_LOW_POWER_RD | MT9M111_RM_COL_SKIP_2X | 279 MT9M111_RM_ROW_SKIP_2X, 280 .reg_mask = MT9M111_RM_PWR_MASK | MT9M111_RM_SKIP2_MASK, 281 }, 282 }; 283 284 /* Find a data format by a pixel code */ 285 static const struct mt9m111_datafmt *mt9m111_find_datafmt(struct mt9m111 *mt9m111, 286 u32 code) 287 { 288 int i; 289 for (i = 0; i < ARRAY_SIZE(mt9m111_colour_fmts); i++) 290 if (mt9m111_colour_fmts[i].code == code) 291 return mt9m111_colour_fmts + i; 292 293 return mt9m111->fmt; 294 } 295 296 static struct mt9m111 *to_mt9m111(const struct i2c_client *client) 297 { 298 return container_of(i2c_get_clientdata(client), struct mt9m111, subdev); 299 } 300 301 static int reg_page_map_set(struct i2c_client *client, const u16 reg) 302 { 303 int ret; 304 u16 page; 305 struct mt9m111 *mt9m111 = to_mt9m111(client); 306 307 page = (reg >> 8); 308 if (page == mt9m111->lastpage) 309 return 0; 310 if (page > 2) 311 return -EINVAL; 312 313 ret = i2c_smbus_write_word_swapped(client, MT9M111_PAGE_MAP, page); 314 if (!ret) 315 mt9m111->lastpage = page; 316 return ret; 317 } 318 319 static int mt9m111_reg_read(struct i2c_client *client, const u16 reg) 320 { 321 int ret; 322 323 ret = reg_page_map_set(client, reg); 324 if (!ret) 325 ret = i2c_smbus_read_word_swapped(client, reg & 0xff); 326 327 dev_dbg(&client->dev, "read reg.%03x -> %04x\n", reg, ret); 328 return ret; 329 } 330 331 static int mt9m111_reg_write(struct i2c_client *client, const u16 reg, 332 const u16 data) 333 { 334 int ret; 335 336 ret = reg_page_map_set(client, reg); 337 if (!ret) 338 ret = i2c_smbus_write_word_swapped(client, reg & 0xff, data); 339 dev_dbg(&client->dev, "write reg.%03x = %04x -> %d\n", reg, data, ret); 340 return ret; 341 } 342 343 static int mt9m111_reg_set(struct i2c_client *client, const u16 reg, 344 const u16 data) 345 { 346 int ret; 347 348 ret = mt9m111_reg_read(client, reg); 349 if (ret >= 0) 350 ret = mt9m111_reg_write(client, reg, ret | data); 351 return ret; 352 } 353 354 static int mt9m111_reg_clear(struct i2c_client *client, const u16 reg, 355 const u16 data) 356 { 357 int ret; 358 359 ret = mt9m111_reg_read(client, reg); 360 if (ret >= 0) 361 ret = mt9m111_reg_write(client, reg, ret & ~data); 362 return ret; 363 } 364 365 static int mt9m111_reg_mask(struct i2c_client *client, const u16 reg, 366 const u16 data, const u16 mask) 367 { 368 int ret; 369 370 ret = mt9m111_reg_read(client, reg); 371 if (ret >= 0) 372 ret = mt9m111_reg_write(client, reg, (ret & ~mask) | data); 373 return ret; 374 } 375 376 static int mt9m111_set_context(struct mt9m111 *mt9m111, 377 struct mt9m111_context *ctx) 378 { 379 struct i2c_client *client = v4l2_get_subdevdata(&mt9m111->subdev); 380 return reg_write(CONTEXT_CONTROL, ctx->control); 381 } 382 383 static int mt9m111_setup_rect_ctx(struct mt9m111 *mt9m111, 384 struct mt9m111_context *ctx, struct v4l2_rect *rect, 385 unsigned int width, unsigned int height) 386 { 387 struct i2c_client *client = v4l2_get_subdevdata(&mt9m111->subdev); 388 int ret = mt9m111_reg_write(client, ctx->reducer_xzoom, rect->width); 389 if (!ret) 390 ret = mt9m111_reg_write(client, ctx->reducer_yzoom, rect->height); 391 if (!ret) 392 ret = mt9m111_reg_write(client, ctx->reducer_xsize, width); 393 if (!ret) 394 ret = mt9m111_reg_write(client, ctx->reducer_ysize, height); 395 return ret; 396 } 397 398 static int mt9m111_setup_geometry(struct mt9m111 *mt9m111, struct v4l2_rect *rect, 399 int width, int height, u32 code) 400 { 401 struct i2c_client *client = v4l2_get_subdevdata(&mt9m111->subdev); 402 int ret; 403 404 ret = reg_write(COLUMN_START, rect->left); 405 if (!ret) 406 ret = reg_write(ROW_START, rect->top); 407 408 if (!ret) 409 ret = reg_write(WINDOW_WIDTH, rect->width); 410 if (!ret) 411 ret = reg_write(WINDOW_HEIGHT, rect->height); 412 413 if (code != MEDIA_BUS_FMT_SBGGR10_2X8_PADHI_LE) { 414 /* IFP in use, down-scaling possible */ 415 if (!ret) 416 ret = mt9m111_setup_rect_ctx(mt9m111, &context_b, 417 rect, width, height); 418 if (!ret) 419 ret = mt9m111_setup_rect_ctx(mt9m111, &context_a, 420 rect, width, height); 421 } 422 423 dev_dbg(&client->dev, "%s(%x): %ux%u@%u:%u -> %ux%u = %d\n", 424 __func__, code, rect->width, rect->height, rect->left, rect->top, 425 width, height, ret); 426 427 return ret; 428 } 429 430 static int mt9m111_enable(struct mt9m111 *mt9m111) 431 { 432 struct i2c_client *client = v4l2_get_subdevdata(&mt9m111->subdev); 433 return reg_write(RESET, MT9M111_RESET_CHIP_ENABLE); 434 } 435 436 static int mt9m111_reset(struct mt9m111 *mt9m111) 437 { 438 struct i2c_client *client = v4l2_get_subdevdata(&mt9m111->subdev); 439 int ret; 440 441 ret = reg_set(RESET, MT9M111_RESET_RESET_MODE); 442 if (!ret) 443 ret = reg_set(RESET, MT9M111_RESET_RESET_SOC); 444 if (!ret) 445 ret = reg_clear(RESET, MT9M111_RESET_RESET_MODE 446 | MT9M111_RESET_RESET_SOC); 447 448 return ret; 449 } 450 451 static int mt9m111_set_selection(struct v4l2_subdev *sd, 452 struct v4l2_subdev_state *sd_state, 453 struct v4l2_subdev_selection *sel) 454 { 455 struct i2c_client *client = v4l2_get_subdevdata(sd); 456 struct mt9m111 *mt9m111 = to_mt9m111(client); 457 struct v4l2_rect rect = sel->r; 458 int width, height; 459 int ret, align = 0; 460 461 if (sel->which != V4L2_SUBDEV_FORMAT_ACTIVE || 462 sel->target != V4L2_SEL_TGT_CROP) 463 return -EINVAL; 464 465 if (mt9m111->fmt->code == MEDIA_BUS_FMT_SBGGR8_1X8 || 466 mt9m111->fmt->code == MEDIA_BUS_FMT_SBGGR10_2X8_PADHI_LE) { 467 /* Bayer format - even size lengths */ 468 align = 1; 469 /* Let the user play with the starting pixel */ 470 } 471 472 /* FIXME: the datasheet doesn't specify minimum sizes */ 473 v4l_bound_align_image(&rect.width, 2, MT9M111_MAX_WIDTH, align, 474 &rect.height, 2, MT9M111_MAX_HEIGHT, align, 0); 475 rect.left = clamp(rect.left, MT9M111_MIN_DARK_COLS, 476 MT9M111_MIN_DARK_COLS + MT9M111_MAX_WIDTH - 477 (__s32)rect.width); 478 rect.top = clamp(rect.top, MT9M111_MIN_DARK_ROWS, 479 MT9M111_MIN_DARK_ROWS + MT9M111_MAX_HEIGHT - 480 (__s32)rect.height); 481 482 width = min(mt9m111->width, rect.width); 483 height = min(mt9m111->height, rect.height); 484 485 ret = mt9m111_setup_geometry(mt9m111, &rect, width, height, mt9m111->fmt->code); 486 if (!ret) { 487 mt9m111->rect = rect; 488 mt9m111->width = width; 489 mt9m111->height = height; 490 } 491 492 return ret; 493 } 494 495 static int mt9m111_get_selection(struct v4l2_subdev *sd, 496 struct v4l2_subdev_state *sd_state, 497 struct v4l2_subdev_selection *sel) 498 { 499 struct i2c_client *client = v4l2_get_subdevdata(sd); 500 struct mt9m111 *mt9m111 = to_mt9m111(client); 501 502 if (sel->which != V4L2_SUBDEV_FORMAT_ACTIVE) 503 return -EINVAL; 504 505 switch (sel->target) { 506 case V4L2_SEL_TGT_CROP_BOUNDS: 507 sel->r.left = MT9M111_MIN_DARK_COLS; 508 sel->r.top = MT9M111_MIN_DARK_ROWS; 509 sel->r.width = MT9M111_MAX_WIDTH; 510 sel->r.height = MT9M111_MAX_HEIGHT; 511 return 0; 512 case V4L2_SEL_TGT_CROP: 513 sel->r = mt9m111->rect; 514 return 0; 515 default: 516 return -EINVAL; 517 } 518 } 519 520 static int mt9m111_get_fmt(struct v4l2_subdev *sd, 521 struct v4l2_subdev_state *sd_state, 522 struct v4l2_subdev_format *format) 523 { 524 struct v4l2_mbus_framefmt *mf = &format->format; 525 struct mt9m111 *mt9m111 = container_of(sd, struct mt9m111, subdev); 526 527 if (format->pad) 528 return -EINVAL; 529 530 if (format->which == V4L2_SUBDEV_FORMAT_TRY) { 531 #ifdef CONFIG_VIDEO_V4L2_SUBDEV_API 532 mf = v4l2_subdev_get_try_format(sd, sd_state, format->pad); 533 format->format = *mf; 534 return 0; 535 #else 536 return -EINVAL; 537 #endif 538 } 539 540 mf->width = mt9m111->width; 541 mf->height = mt9m111->height; 542 mf->code = mt9m111->fmt->code; 543 mf->colorspace = mt9m111->fmt->colorspace; 544 mf->field = V4L2_FIELD_NONE; 545 mf->ycbcr_enc = V4L2_YCBCR_ENC_DEFAULT; 546 mf->quantization = V4L2_QUANTIZATION_DEFAULT; 547 mf->xfer_func = V4L2_XFER_FUNC_DEFAULT; 548 549 return 0; 550 } 551 552 static int mt9m111_set_pixfmt(struct mt9m111 *mt9m111, 553 u32 code) 554 { 555 struct i2c_client *client = v4l2_get_subdevdata(&mt9m111->subdev); 556 u16 data_outfmt2, mask_outfmt2 = MT9M111_OUTFMT_PROCESSED_BAYER | 557 MT9M111_OUTFMT_BYPASS_IFP | MT9M111_OUTFMT_RGB | 558 MT9M111_OUTFMT_RGB565 | MT9M111_OUTFMT_RGB555 | 559 MT9M111_OUTFMT_RGB444x | MT9M111_OUTFMT_RGBx444 | 560 MT9M111_OUTFMT_SWAP_YCbCr_C_Y_RGB_EVEN | 561 MT9M111_OUTFMT_SWAP_YCbCr_Cb_Cr_RGB_R_B; 562 int ret; 563 564 switch (code) { 565 case MEDIA_BUS_FMT_SBGGR8_1X8: 566 data_outfmt2 = MT9M111_OUTFMT_PROCESSED_BAYER | 567 MT9M111_OUTFMT_RGB; 568 break; 569 case MEDIA_BUS_FMT_SBGGR10_2X8_PADHI_LE: 570 data_outfmt2 = MT9M111_OUTFMT_BYPASS_IFP | MT9M111_OUTFMT_RGB; 571 break; 572 case MEDIA_BUS_FMT_RGB555_2X8_PADHI_LE: 573 data_outfmt2 = MT9M111_OUTFMT_RGB | MT9M111_OUTFMT_RGB555 | 574 MT9M111_OUTFMT_SWAP_YCbCr_C_Y_RGB_EVEN; 575 break; 576 case MEDIA_BUS_FMT_RGB555_2X8_PADHI_BE: 577 data_outfmt2 = MT9M111_OUTFMT_RGB | MT9M111_OUTFMT_RGB555; 578 break; 579 case MEDIA_BUS_FMT_RGB565_2X8_LE: 580 data_outfmt2 = MT9M111_OUTFMT_RGB | MT9M111_OUTFMT_RGB565 | 581 MT9M111_OUTFMT_SWAP_YCbCr_C_Y_RGB_EVEN; 582 break; 583 case MEDIA_BUS_FMT_RGB565_2X8_BE: 584 data_outfmt2 = MT9M111_OUTFMT_RGB | MT9M111_OUTFMT_RGB565; 585 break; 586 case MEDIA_BUS_FMT_BGR565_2X8_BE: 587 data_outfmt2 = MT9M111_OUTFMT_RGB | MT9M111_OUTFMT_RGB565 | 588 MT9M111_OUTFMT_SWAP_YCbCr_Cb_Cr_RGB_R_B; 589 break; 590 case MEDIA_BUS_FMT_BGR565_2X8_LE: 591 data_outfmt2 = MT9M111_OUTFMT_RGB | MT9M111_OUTFMT_RGB565 | 592 MT9M111_OUTFMT_SWAP_YCbCr_C_Y_RGB_EVEN | 593 MT9M111_OUTFMT_SWAP_YCbCr_Cb_Cr_RGB_R_B; 594 break; 595 case MEDIA_BUS_FMT_UYVY8_2X8: 596 data_outfmt2 = 0; 597 break; 598 case MEDIA_BUS_FMT_VYUY8_2X8: 599 data_outfmt2 = MT9M111_OUTFMT_SWAP_YCbCr_Cb_Cr_RGB_R_B; 600 break; 601 case MEDIA_BUS_FMT_YUYV8_2X8: 602 data_outfmt2 = MT9M111_OUTFMT_SWAP_YCbCr_C_Y_RGB_EVEN; 603 break; 604 case MEDIA_BUS_FMT_YVYU8_2X8: 605 data_outfmt2 = MT9M111_OUTFMT_SWAP_YCbCr_C_Y_RGB_EVEN | 606 MT9M111_OUTFMT_SWAP_YCbCr_Cb_Cr_RGB_R_B; 607 break; 608 default: 609 dev_err(&client->dev, "Pixel format not handled: %x\n", code); 610 return -EINVAL; 611 } 612 613 /* receiver samples on falling edge, chip-hw default is rising */ 614 if (mt9m111->pclk_sample == 0) 615 mask_outfmt2 |= MT9M111_OUTFMT_INV_PIX_CLOCK; 616 617 ret = mt9m111_reg_mask(client, context_a.output_fmt_ctrl2, 618 data_outfmt2, mask_outfmt2); 619 if (!ret) 620 ret = mt9m111_reg_mask(client, context_b.output_fmt_ctrl2, 621 data_outfmt2, mask_outfmt2); 622 623 return ret; 624 } 625 626 static int mt9m111_set_fmt(struct v4l2_subdev *sd, 627 struct v4l2_subdev_state *sd_state, 628 struct v4l2_subdev_format *format) 629 { 630 struct v4l2_mbus_framefmt *mf = &format->format; 631 struct i2c_client *client = v4l2_get_subdevdata(sd); 632 struct mt9m111 *mt9m111 = container_of(sd, struct mt9m111, subdev); 633 const struct mt9m111_datafmt *fmt; 634 struct v4l2_rect *rect = &mt9m111->rect; 635 bool bayer; 636 int ret; 637 638 if (mt9m111->is_streaming) 639 return -EBUSY; 640 641 if (format->pad) 642 return -EINVAL; 643 644 fmt = mt9m111_find_datafmt(mt9m111, mf->code); 645 646 bayer = fmt->code == MEDIA_BUS_FMT_SBGGR8_1X8 || 647 fmt->code == MEDIA_BUS_FMT_SBGGR10_2X8_PADHI_LE; 648 649 /* 650 * With Bayer format enforce even side lengths, but let the user play 651 * with the starting pixel 652 */ 653 if (bayer) { 654 rect->width = ALIGN(rect->width, 2); 655 rect->height = ALIGN(rect->height, 2); 656 } 657 658 if (fmt->code == MEDIA_BUS_FMT_SBGGR10_2X8_PADHI_LE) { 659 /* IFP bypass mode, no scaling */ 660 mf->width = rect->width; 661 mf->height = rect->height; 662 } else { 663 /* No upscaling */ 664 if (mf->width > rect->width) 665 mf->width = rect->width; 666 if (mf->height > rect->height) 667 mf->height = rect->height; 668 } 669 670 dev_dbg(&client->dev, "%s(): %ux%u, code=%x\n", __func__, 671 mf->width, mf->height, fmt->code); 672 673 mf->code = fmt->code; 674 mf->colorspace = fmt->colorspace; 675 mf->field = V4L2_FIELD_NONE; 676 mf->ycbcr_enc = V4L2_YCBCR_ENC_DEFAULT; 677 mf->quantization = V4L2_QUANTIZATION_DEFAULT; 678 mf->xfer_func = V4L2_XFER_FUNC_DEFAULT; 679 680 if (format->which == V4L2_SUBDEV_FORMAT_TRY) { 681 sd_state->pads->try_fmt = *mf; 682 return 0; 683 } 684 685 ret = mt9m111_setup_geometry(mt9m111, rect, mf->width, mf->height, mf->code); 686 if (!ret) 687 ret = mt9m111_set_pixfmt(mt9m111, mf->code); 688 if (!ret) { 689 mt9m111->width = mf->width; 690 mt9m111->height = mf->height; 691 mt9m111->fmt = fmt; 692 } 693 694 return ret; 695 } 696 697 static const struct mt9m111_mode_info * 698 mt9m111_find_mode(struct mt9m111 *mt9m111, unsigned int req_fps, 699 unsigned int width, unsigned int height) 700 { 701 const struct mt9m111_mode_info *mode; 702 struct v4l2_rect *sensor_rect = &mt9m111->rect; 703 unsigned int gap, gap_best = (unsigned int) -1; 704 int i, best_gap_idx = MT9M111_MODE_SXGA_15FPS; 705 bool skip_30fps = false; 706 707 /* 708 * The fps selection is based on the row, column skipping mechanism. 709 * So ensure that the sensor window is set to default else the fps 710 * aren't calculated correctly within the sensor hw. 711 */ 712 if (sensor_rect->width != MT9M111_MAX_WIDTH || 713 sensor_rect->height != MT9M111_MAX_HEIGHT) { 714 dev_info(mt9m111->subdev.dev, 715 "Framerate selection is not supported for cropped " 716 "images\n"); 717 return NULL; 718 } 719 720 /* 30fps only supported for images not exceeding 640x512 */ 721 if (width > MT9M111_MAX_WIDTH / 2 || height > MT9M111_MAX_HEIGHT / 2) { 722 dev_dbg(mt9m111->subdev.dev, 723 "Framerates > 15fps are supported only for images " 724 "not exceeding 640x512\n"); 725 skip_30fps = true; 726 } 727 728 /* find best matched fps */ 729 for (i = 0; i < MT9M111_NUM_MODES; i++) { 730 unsigned int fps = mt9m111_mode_data[i].max_fps; 731 732 if (fps == 30 && skip_30fps) 733 continue; 734 735 gap = abs(fps - req_fps); 736 if (gap < gap_best) { 737 best_gap_idx = i; 738 gap_best = gap; 739 } 740 } 741 742 /* 743 * Use context a/b default timing values instead of calculate blanking 744 * timing values. 745 */ 746 mode = &mt9m111_mode_data[best_gap_idx]; 747 mt9m111->ctx = (best_gap_idx == MT9M111_MODE_QSXGA_30FPS) ? &context_a : 748 &context_b; 749 return mode; 750 } 751 752 #ifdef CONFIG_VIDEO_ADV_DEBUG 753 static int mt9m111_g_register(struct v4l2_subdev *sd, 754 struct v4l2_dbg_register *reg) 755 { 756 struct i2c_client *client = v4l2_get_subdevdata(sd); 757 int val; 758 759 if (reg->reg > 0x2ff) 760 return -EINVAL; 761 762 val = mt9m111_reg_read(client, reg->reg); 763 reg->size = 2; 764 reg->val = (u64)val; 765 766 if (reg->val > 0xffff) 767 return -EIO; 768 769 return 0; 770 } 771 772 static int mt9m111_s_register(struct v4l2_subdev *sd, 773 const struct v4l2_dbg_register *reg) 774 { 775 struct i2c_client *client = v4l2_get_subdevdata(sd); 776 777 if (reg->reg > 0x2ff) 778 return -EINVAL; 779 780 if (mt9m111_reg_write(client, reg->reg, reg->val) < 0) 781 return -EIO; 782 783 return 0; 784 } 785 #endif 786 787 static int mt9m111_set_flip(struct mt9m111 *mt9m111, int flip, int mask) 788 { 789 struct i2c_client *client = v4l2_get_subdevdata(&mt9m111->subdev); 790 int ret; 791 792 if (flip) 793 ret = mt9m111_reg_set(client, mt9m111->ctx->read_mode, mask); 794 else 795 ret = mt9m111_reg_clear(client, mt9m111->ctx->read_mode, mask); 796 797 return ret; 798 } 799 800 static int mt9m111_get_global_gain(struct mt9m111 *mt9m111) 801 { 802 struct i2c_client *client = v4l2_get_subdevdata(&mt9m111->subdev); 803 int data; 804 805 data = reg_read(GLOBAL_GAIN); 806 if (data >= 0) 807 return (data & 0x2f) * (1 << ((data >> 10) & 1)) * 808 (1 << ((data >> 9) & 1)); 809 return data; 810 } 811 812 static int mt9m111_set_global_gain(struct mt9m111 *mt9m111, int gain) 813 { 814 struct i2c_client *client = v4l2_get_subdevdata(&mt9m111->subdev); 815 u16 val; 816 817 if (gain > 63 * 2 * 2) 818 return -EINVAL; 819 820 if ((gain >= 64 * 2) && (gain < 63 * 2 * 2)) 821 val = (1 << 10) | (1 << 9) | (gain / 4); 822 else if ((gain >= 64) && (gain < 64 * 2)) 823 val = (1 << 9) | (gain / 2); 824 else 825 val = gain; 826 827 return reg_write(GLOBAL_GAIN, val); 828 } 829 830 static int mt9m111_set_autoexposure(struct mt9m111 *mt9m111, int val) 831 { 832 struct i2c_client *client = v4l2_get_subdevdata(&mt9m111->subdev); 833 834 if (val == V4L2_EXPOSURE_AUTO) 835 return reg_set(OPER_MODE_CTRL, MT9M111_OPMODE_AUTOEXPO_EN); 836 return reg_clear(OPER_MODE_CTRL, MT9M111_OPMODE_AUTOEXPO_EN); 837 } 838 839 static int mt9m111_set_autowhitebalance(struct mt9m111 *mt9m111, int on) 840 { 841 struct i2c_client *client = v4l2_get_subdevdata(&mt9m111->subdev); 842 843 if (on) 844 return reg_set(OPER_MODE_CTRL, MT9M111_OPMODE_AUTOWHITEBAL_EN); 845 return reg_clear(OPER_MODE_CTRL, MT9M111_OPMODE_AUTOWHITEBAL_EN); 846 } 847 848 static const char * const mt9m111_test_pattern_menu[] = { 849 "Disabled", 850 "Vertical monochrome gradient", 851 "Flat color type 1", 852 "Flat color type 2", 853 "Flat color type 3", 854 "Flat color type 4", 855 "Flat color type 5", 856 "Color bar", 857 }; 858 859 static int mt9m111_set_test_pattern(struct mt9m111 *mt9m111, int val) 860 { 861 struct i2c_client *client = v4l2_get_subdevdata(&mt9m111->subdev); 862 863 return mt9m111_reg_mask(client, MT9M111_TPG_CTRL, val, 864 MT9M111_TPG_SEL_MASK); 865 } 866 867 static int mt9m111_set_colorfx(struct mt9m111 *mt9m111, int val) 868 { 869 struct i2c_client *client = v4l2_get_subdevdata(&mt9m111->subdev); 870 static const struct v4l2_control colorfx[] = { 871 { V4L2_COLORFX_NONE, 0 }, 872 { V4L2_COLORFX_BW, 1 }, 873 { V4L2_COLORFX_SEPIA, 2 }, 874 { V4L2_COLORFX_NEGATIVE, 3 }, 875 { V4L2_COLORFX_SOLARIZATION, 4 }, 876 }; 877 int i; 878 879 for (i = 0; i < ARRAY_SIZE(colorfx); i++) { 880 if (colorfx[i].id == val) { 881 return mt9m111_reg_mask(client, MT9M111_EFFECTS_MODE, 882 colorfx[i].value, 883 MT9M111_EFFECTS_MODE_MASK); 884 } 885 } 886 887 return -EINVAL; 888 } 889 890 static int mt9m111_s_ctrl(struct v4l2_ctrl *ctrl) 891 { 892 struct mt9m111 *mt9m111 = container_of(ctrl->handler, 893 struct mt9m111, hdl); 894 895 switch (ctrl->id) { 896 case V4L2_CID_VFLIP: 897 return mt9m111_set_flip(mt9m111, ctrl->val, 898 MT9M111_RMB_MIRROR_ROWS); 899 case V4L2_CID_HFLIP: 900 return mt9m111_set_flip(mt9m111, ctrl->val, 901 MT9M111_RMB_MIRROR_COLS); 902 case V4L2_CID_GAIN: 903 return mt9m111_set_global_gain(mt9m111, ctrl->val); 904 case V4L2_CID_EXPOSURE_AUTO: 905 return mt9m111_set_autoexposure(mt9m111, ctrl->val); 906 case V4L2_CID_AUTO_WHITE_BALANCE: 907 return mt9m111_set_autowhitebalance(mt9m111, ctrl->val); 908 case V4L2_CID_TEST_PATTERN: 909 return mt9m111_set_test_pattern(mt9m111, ctrl->val); 910 case V4L2_CID_COLORFX: 911 return mt9m111_set_colorfx(mt9m111, ctrl->val); 912 } 913 914 return -EINVAL; 915 } 916 917 static int mt9m111_suspend(struct mt9m111 *mt9m111) 918 { 919 struct i2c_client *client = v4l2_get_subdevdata(&mt9m111->subdev); 920 int ret; 921 922 v4l2_ctrl_s_ctrl(mt9m111->gain, mt9m111_get_global_gain(mt9m111)); 923 924 ret = reg_set(RESET, MT9M111_RESET_RESET_MODE); 925 if (!ret) 926 ret = reg_set(RESET, MT9M111_RESET_RESET_SOC | 927 MT9M111_RESET_OUTPUT_DISABLE | 928 MT9M111_RESET_ANALOG_STANDBY); 929 if (!ret) 930 ret = reg_clear(RESET, MT9M111_RESET_CHIP_ENABLE); 931 932 return ret; 933 } 934 935 static void mt9m111_restore_state(struct mt9m111 *mt9m111) 936 { 937 struct i2c_client *client = v4l2_get_subdevdata(&mt9m111->subdev); 938 939 mt9m111_set_context(mt9m111, mt9m111->ctx); 940 mt9m111_set_pixfmt(mt9m111, mt9m111->fmt->code); 941 mt9m111_setup_geometry(mt9m111, &mt9m111->rect, 942 mt9m111->width, mt9m111->height, mt9m111->fmt->code); 943 v4l2_ctrl_handler_setup(&mt9m111->hdl); 944 mt9m111_reg_mask(client, mt9m111->ctx->read_mode, 945 mt9m111->current_mode->reg_val, 946 mt9m111->current_mode->reg_mask); 947 } 948 949 static int mt9m111_resume(struct mt9m111 *mt9m111) 950 { 951 int ret = mt9m111_enable(mt9m111); 952 if (!ret) 953 ret = mt9m111_reset(mt9m111); 954 if (!ret) 955 mt9m111_restore_state(mt9m111); 956 957 return ret; 958 } 959 960 static int mt9m111_init(struct mt9m111 *mt9m111) 961 { 962 struct i2c_client *client = v4l2_get_subdevdata(&mt9m111->subdev); 963 int ret; 964 965 ret = mt9m111_enable(mt9m111); 966 if (!ret) 967 ret = mt9m111_reset(mt9m111); 968 if (!ret) 969 ret = mt9m111_set_context(mt9m111, mt9m111->ctx); 970 if (ret) 971 dev_err(&client->dev, "mt9m111 init failed: %d\n", ret); 972 return ret; 973 } 974 975 static int mt9m111_power_on(struct mt9m111 *mt9m111) 976 { 977 struct i2c_client *client = v4l2_get_subdevdata(&mt9m111->subdev); 978 int ret; 979 980 ret = clk_prepare_enable(mt9m111->clk); 981 if (ret < 0) 982 return ret; 983 984 ret = regulator_enable(mt9m111->regulator); 985 if (ret < 0) 986 goto out_clk_disable; 987 988 ret = mt9m111_resume(mt9m111); 989 if (ret < 0) 990 goto out_regulator_disable; 991 992 return 0; 993 994 out_regulator_disable: 995 regulator_disable(mt9m111->regulator); 996 997 out_clk_disable: 998 clk_disable_unprepare(mt9m111->clk); 999 1000 dev_err(&client->dev, "Failed to resume the sensor: %d\n", ret); 1001 1002 return ret; 1003 } 1004 1005 static void mt9m111_power_off(struct mt9m111 *mt9m111) 1006 { 1007 mt9m111_suspend(mt9m111); 1008 regulator_disable(mt9m111->regulator); 1009 clk_disable_unprepare(mt9m111->clk); 1010 } 1011 1012 static int mt9m111_s_power(struct v4l2_subdev *sd, int on) 1013 { 1014 struct mt9m111 *mt9m111 = container_of(sd, struct mt9m111, subdev); 1015 int ret = 0; 1016 1017 mutex_lock(&mt9m111->power_lock); 1018 1019 /* 1020 * If the power count is modified from 0 to != 0 or from != 0 to 0, 1021 * update the power state. 1022 */ 1023 if (mt9m111->power_count == !on) { 1024 if (on) 1025 ret = mt9m111_power_on(mt9m111); 1026 else 1027 mt9m111_power_off(mt9m111); 1028 } 1029 1030 if (!ret) { 1031 /* Update the power count. */ 1032 mt9m111->power_count += on ? 1 : -1; 1033 WARN_ON(mt9m111->power_count < 0); 1034 } 1035 1036 mutex_unlock(&mt9m111->power_lock); 1037 return ret; 1038 } 1039 1040 static const struct v4l2_ctrl_ops mt9m111_ctrl_ops = { 1041 .s_ctrl = mt9m111_s_ctrl, 1042 }; 1043 1044 static const struct v4l2_subdev_core_ops mt9m111_subdev_core_ops = { 1045 .s_power = mt9m111_s_power, 1046 .log_status = v4l2_ctrl_subdev_log_status, 1047 .subscribe_event = v4l2_ctrl_subdev_subscribe_event, 1048 .unsubscribe_event = v4l2_event_subdev_unsubscribe, 1049 #ifdef CONFIG_VIDEO_ADV_DEBUG 1050 .g_register = mt9m111_g_register, 1051 .s_register = mt9m111_s_register, 1052 #endif 1053 }; 1054 1055 static int mt9m111_g_frame_interval(struct v4l2_subdev *sd, 1056 struct v4l2_subdev_frame_interval *fi) 1057 { 1058 struct mt9m111 *mt9m111 = container_of(sd, struct mt9m111, subdev); 1059 1060 fi->interval = mt9m111->frame_interval; 1061 1062 return 0; 1063 } 1064 1065 static int mt9m111_s_frame_interval(struct v4l2_subdev *sd, 1066 struct v4l2_subdev_frame_interval *fi) 1067 { 1068 struct mt9m111 *mt9m111 = container_of(sd, struct mt9m111, subdev); 1069 const struct mt9m111_mode_info *mode; 1070 struct v4l2_fract *fract = &fi->interval; 1071 int fps; 1072 1073 if (mt9m111->is_streaming) 1074 return -EBUSY; 1075 1076 if (fi->pad != 0) 1077 return -EINVAL; 1078 1079 if (fract->numerator == 0) { 1080 fract->denominator = 30; 1081 fract->numerator = 1; 1082 } 1083 1084 fps = DIV_ROUND_CLOSEST(fract->denominator, fract->numerator); 1085 1086 /* Find best fitting mode. Do not update the mode if no one was found. */ 1087 mode = mt9m111_find_mode(mt9m111, fps, mt9m111->width, mt9m111->height); 1088 if (!mode) 1089 return 0; 1090 1091 if (mode->max_fps != fps) { 1092 fract->denominator = mode->max_fps; 1093 fract->numerator = 1; 1094 } 1095 1096 mt9m111->current_mode = mode; 1097 mt9m111->frame_interval = fi->interval; 1098 1099 return 0; 1100 } 1101 1102 static int mt9m111_enum_mbus_code(struct v4l2_subdev *sd, 1103 struct v4l2_subdev_state *sd_state, 1104 struct v4l2_subdev_mbus_code_enum *code) 1105 { 1106 if (code->pad || code->index >= ARRAY_SIZE(mt9m111_colour_fmts)) 1107 return -EINVAL; 1108 1109 code->code = mt9m111_colour_fmts[code->index].code; 1110 return 0; 1111 } 1112 1113 static int mt9m111_s_stream(struct v4l2_subdev *sd, int enable) 1114 { 1115 struct mt9m111 *mt9m111 = container_of(sd, struct mt9m111, subdev); 1116 1117 mt9m111->is_streaming = !!enable; 1118 return 0; 1119 } 1120 1121 static int mt9m111_init_cfg(struct v4l2_subdev *sd, 1122 struct v4l2_subdev_state *sd_state) 1123 { 1124 #ifdef CONFIG_VIDEO_V4L2_SUBDEV_API 1125 struct v4l2_mbus_framefmt *format = 1126 v4l2_subdev_get_try_format(sd, sd_state, 0); 1127 1128 format->width = MT9M111_MAX_WIDTH; 1129 format->height = MT9M111_MAX_HEIGHT; 1130 format->code = mt9m111_colour_fmts[0].code; 1131 format->colorspace = mt9m111_colour_fmts[0].colorspace; 1132 format->field = V4L2_FIELD_NONE; 1133 format->ycbcr_enc = V4L2_YCBCR_ENC_DEFAULT; 1134 format->quantization = V4L2_QUANTIZATION_DEFAULT; 1135 format->xfer_func = V4L2_XFER_FUNC_DEFAULT; 1136 #endif 1137 return 0; 1138 } 1139 1140 static int mt9m111_get_mbus_config(struct v4l2_subdev *sd, 1141 unsigned int pad, 1142 struct v4l2_mbus_config *cfg) 1143 { 1144 struct mt9m111 *mt9m111 = container_of(sd, struct mt9m111, subdev); 1145 1146 cfg->flags = V4L2_MBUS_MASTER | 1147 V4L2_MBUS_HSYNC_ACTIVE_HIGH | V4L2_MBUS_VSYNC_ACTIVE_HIGH | 1148 V4L2_MBUS_DATA_ACTIVE_HIGH; 1149 1150 cfg->flags |= mt9m111->pclk_sample ? V4L2_MBUS_PCLK_SAMPLE_RISING : 1151 V4L2_MBUS_PCLK_SAMPLE_FALLING; 1152 1153 cfg->type = V4L2_MBUS_PARALLEL; 1154 1155 return 0; 1156 } 1157 1158 static const struct v4l2_subdev_video_ops mt9m111_subdev_video_ops = { 1159 .s_stream = mt9m111_s_stream, 1160 .g_frame_interval = mt9m111_g_frame_interval, 1161 .s_frame_interval = mt9m111_s_frame_interval, 1162 }; 1163 1164 static const struct v4l2_subdev_pad_ops mt9m111_subdev_pad_ops = { 1165 .init_cfg = mt9m111_init_cfg, 1166 .enum_mbus_code = mt9m111_enum_mbus_code, 1167 .get_selection = mt9m111_get_selection, 1168 .set_selection = mt9m111_set_selection, 1169 .get_fmt = mt9m111_get_fmt, 1170 .set_fmt = mt9m111_set_fmt, 1171 .get_mbus_config = mt9m111_get_mbus_config, 1172 }; 1173 1174 static const struct v4l2_subdev_ops mt9m111_subdev_ops = { 1175 .core = &mt9m111_subdev_core_ops, 1176 .video = &mt9m111_subdev_video_ops, 1177 .pad = &mt9m111_subdev_pad_ops, 1178 }; 1179 1180 /* 1181 * Interface active, can use i2c. If it fails, it can indeed mean, that 1182 * this wasn't our capture interface, so, we wait for the right one 1183 */ 1184 static int mt9m111_video_probe(struct i2c_client *client) 1185 { 1186 struct mt9m111 *mt9m111 = to_mt9m111(client); 1187 s32 data; 1188 int ret; 1189 1190 ret = mt9m111_s_power(&mt9m111->subdev, 1); 1191 if (ret < 0) 1192 return ret; 1193 1194 data = reg_read(CHIP_VERSION); 1195 1196 switch (data) { 1197 case 0x143a: /* MT9M111 or MT9M131 */ 1198 dev_info(&client->dev, 1199 "Detected a MT9M111/MT9M131 chip ID %x\n", data); 1200 break; 1201 case 0x148c: /* MT9M112 */ 1202 dev_info(&client->dev, "Detected a MT9M112 chip ID %x\n", data); 1203 break; 1204 default: 1205 dev_err(&client->dev, 1206 "No MT9M111/MT9M112/MT9M131 chip detected register read %x\n", 1207 data); 1208 ret = -ENODEV; 1209 goto done; 1210 } 1211 1212 ret = mt9m111_init(mt9m111); 1213 if (ret) 1214 goto done; 1215 1216 ret = v4l2_ctrl_handler_setup(&mt9m111->hdl); 1217 1218 done: 1219 mt9m111_s_power(&mt9m111->subdev, 0); 1220 return ret; 1221 } 1222 1223 static int mt9m111_probe_fw(struct i2c_client *client, struct mt9m111 *mt9m111) 1224 { 1225 struct v4l2_fwnode_endpoint bus_cfg = { 1226 .bus_type = V4L2_MBUS_PARALLEL 1227 }; 1228 struct fwnode_handle *np; 1229 int ret; 1230 1231 np = fwnode_graph_get_next_endpoint(dev_fwnode(&client->dev), NULL); 1232 if (!np) 1233 return -EINVAL; 1234 1235 ret = v4l2_fwnode_endpoint_parse(np, &bus_cfg); 1236 if (ret) 1237 goto out_put_fw; 1238 1239 mt9m111->pclk_sample = !!(bus_cfg.bus.parallel.flags & 1240 V4L2_MBUS_PCLK_SAMPLE_RISING); 1241 1242 out_put_fw: 1243 fwnode_handle_put(np); 1244 return ret; 1245 } 1246 1247 static int mt9m111_probe(struct i2c_client *client) 1248 { 1249 struct mt9m111 *mt9m111; 1250 struct i2c_adapter *adapter = client->adapter; 1251 int ret; 1252 1253 if (!i2c_check_functionality(adapter, I2C_FUNC_SMBUS_WORD_DATA)) { 1254 dev_warn(&adapter->dev, 1255 "I2C-Adapter doesn't support I2C_FUNC_SMBUS_WORD\n"); 1256 return -EIO; 1257 } 1258 1259 mt9m111 = devm_kzalloc(&client->dev, sizeof(struct mt9m111), GFP_KERNEL); 1260 if (!mt9m111) 1261 return -ENOMEM; 1262 1263 if (dev_fwnode(&client->dev)) { 1264 ret = mt9m111_probe_fw(client, mt9m111); 1265 if (ret) 1266 return ret; 1267 } 1268 1269 mt9m111->clk = devm_clk_get(&client->dev, "mclk"); 1270 if (IS_ERR(mt9m111->clk)) 1271 return PTR_ERR(mt9m111->clk); 1272 1273 mt9m111->regulator = devm_regulator_get(&client->dev, "vdd"); 1274 if (IS_ERR(mt9m111->regulator)) { 1275 dev_err(&client->dev, "regulator not found: %ld\n", 1276 PTR_ERR(mt9m111->regulator)); 1277 return PTR_ERR(mt9m111->regulator); 1278 } 1279 1280 /* Default HIGHPOWER context */ 1281 mt9m111->ctx = &context_b; 1282 1283 v4l2_i2c_subdev_init(&mt9m111->subdev, client, &mt9m111_subdev_ops); 1284 mt9m111->subdev.flags |= V4L2_SUBDEV_FL_HAS_DEVNODE | 1285 V4L2_SUBDEV_FL_HAS_EVENTS; 1286 1287 v4l2_ctrl_handler_init(&mt9m111->hdl, 7); 1288 v4l2_ctrl_new_std(&mt9m111->hdl, &mt9m111_ctrl_ops, 1289 V4L2_CID_VFLIP, 0, 1, 1, 0); 1290 v4l2_ctrl_new_std(&mt9m111->hdl, &mt9m111_ctrl_ops, 1291 V4L2_CID_HFLIP, 0, 1, 1, 0); 1292 v4l2_ctrl_new_std(&mt9m111->hdl, &mt9m111_ctrl_ops, 1293 V4L2_CID_AUTO_WHITE_BALANCE, 0, 1, 1, 1); 1294 mt9m111->gain = v4l2_ctrl_new_std(&mt9m111->hdl, &mt9m111_ctrl_ops, 1295 V4L2_CID_GAIN, 0, 63 * 2 * 2, 1, 32); 1296 v4l2_ctrl_new_std_menu(&mt9m111->hdl, 1297 &mt9m111_ctrl_ops, V4L2_CID_EXPOSURE_AUTO, 1, 0, 1298 V4L2_EXPOSURE_AUTO); 1299 v4l2_ctrl_new_std_menu_items(&mt9m111->hdl, 1300 &mt9m111_ctrl_ops, V4L2_CID_TEST_PATTERN, 1301 ARRAY_SIZE(mt9m111_test_pattern_menu) - 1, 0, 0, 1302 mt9m111_test_pattern_menu); 1303 v4l2_ctrl_new_std_menu(&mt9m111->hdl, &mt9m111_ctrl_ops, 1304 V4L2_CID_COLORFX, V4L2_COLORFX_SOLARIZATION, 1305 ~(BIT(V4L2_COLORFX_NONE) | 1306 BIT(V4L2_COLORFX_BW) | 1307 BIT(V4L2_COLORFX_SEPIA) | 1308 BIT(V4L2_COLORFX_NEGATIVE) | 1309 BIT(V4L2_COLORFX_SOLARIZATION)), 1310 V4L2_COLORFX_NONE); 1311 mt9m111->subdev.ctrl_handler = &mt9m111->hdl; 1312 if (mt9m111->hdl.error) { 1313 ret = mt9m111->hdl.error; 1314 return ret; 1315 } 1316 1317 #ifdef CONFIG_MEDIA_CONTROLLER 1318 mt9m111->pad.flags = MEDIA_PAD_FL_SOURCE; 1319 mt9m111->subdev.entity.function = MEDIA_ENT_F_CAM_SENSOR; 1320 ret = media_entity_pads_init(&mt9m111->subdev.entity, 1, &mt9m111->pad); 1321 if (ret < 0) 1322 goto out_hdlfree; 1323 #endif 1324 1325 mt9m111->current_mode = &mt9m111_mode_data[MT9M111_MODE_SXGA_15FPS]; 1326 mt9m111->frame_interval.numerator = 1; 1327 mt9m111->frame_interval.denominator = mt9m111->current_mode->max_fps; 1328 1329 /* Second stage probe - when a capture adapter is there */ 1330 mt9m111->rect.left = MT9M111_MIN_DARK_COLS; 1331 mt9m111->rect.top = MT9M111_MIN_DARK_ROWS; 1332 mt9m111->rect.width = MT9M111_MAX_WIDTH; 1333 mt9m111->rect.height = MT9M111_MAX_HEIGHT; 1334 mt9m111->width = mt9m111->rect.width; 1335 mt9m111->height = mt9m111->rect.height; 1336 mt9m111->fmt = &mt9m111_colour_fmts[0]; 1337 mt9m111->lastpage = -1; 1338 mutex_init(&mt9m111->power_lock); 1339 1340 ret = mt9m111_video_probe(client); 1341 if (ret < 0) 1342 goto out_entityclean; 1343 1344 mt9m111->subdev.dev = &client->dev; 1345 ret = v4l2_async_register_subdev(&mt9m111->subdev); 1346 if (ret < 0) 1347 goto out_entityclean; 1348 1349 return 0; 1350 1351 out_entityclean: 1352 #ifdef CONFIG_MEDIA_CONTROLLER 1353 media_entity_cleanup(&mt9m111->subdev.entity); 1354 out_hdlfree: 1355 #endif 1356 v4l2_ctrl_handler_free(&mt9m111->hdl); 1357 1358 return ret; 1359 } 1360 1361 static int mt9m111_remove(struct i2c_client *client) 1362 { 1363 struct mt9m111 *mt9m111 = to_mt9m111(client); 1364 1365 v4l2_async_unregister_subdev(&mt9m111->subdev); 1366 media_entity_cleanup(&mt9m111->subdev.entity); 1367 v4l2_ctrl_handler_free(&mt9m111->hdl); 1368 1369 return 0; 1370 } 1371 static const struct of_device_id mt9m111_of_match[] = { 1372 { .compatible = "micron,mt9m111", }, 1373 {}, 1374 }; 1375 MODULE_DEVICE_TABLE(of, mt9m111_of_match); 1376 1377 static const struct i2c_device_id mt9m111_id[] = { 1378 { "mt9m111", 0 }, 1379 { } 1380 }; 1381 MODULE_DEVICE_TABLE(i2c, mt9m111_id); 1382 1383 static struct i2c_driver mt9m111_i2c_driver = { 1384 .driver = { 1385 .name = "mt9m111", 1386 .of_match_table = of_match_ptr(mt9m111_of_match), 1387 }, 1388 .probe_new = mt9m111_probe, 1389 .remove = mt9m111_remove, 1390 .id_table = mt9m111_id, 1391 }; 1392 1393 module_i2c_driver(mt9m111_i2c_driver); 1394 1395 MODULE_DESCRIPTION("Micron/Aptina MT9M111/MT9M112/MT9M131 Camera driver"); 1396 MODULE_AUTHOR("Robert Jarzmik"); 1397 MODULE_LICENSE("GPL"); 1398