Sylwester Nawrocki | f8e2e3e | 2011-01-03 08:07:30 -0300 | [diff] [blame] | 1 | /* |
| 2 | * Driver for SiliconFile NOON010PC30 CIF (1/11") Image Sensor with ISP |
| 3 | * |
Sylwester Nawrocki | 6426e14 | 2011-09-16 12:33:08 -0300 | [diff] [blame] | 4 | * Copyright (C) 2010 - 2011 Samsung Electronics Co., Ltd. |
Sylwester Nawrocki | f8e2e3e | 2011-01-03 08:07:30 -0300 | [diff] [blame] | 5 | * Contact: Sylwester Nawrocki, <s.nawrocki@samsung.com> |
| 6 | * |
| 7 | * Initial register configuration based on a driver authored by |
| 8 | * HeungJun Kim <riverful.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 |
Sylwester Nawrocki | 6426e14 | 2011-09-16 12:33:08 -0300 | [diff] [blame] | 13 | * (at your option) any later version. |
Sylwester Nawrocki | f8e2e3e | 2011-01-03 08:07:30 -0300 | [diff] [blame] | 14 | */ |
| 15 | |
| 16 | #include <linux/delay.h> |
| 17 | #include <linux/gpio.h> |
| 18 | #include <linux/i2c.h> |
| 19 | #include <linux/slab.h> |
| 20 | #include <linux/regulator/consumer.h> |
| 21 | #include <media/noon010pc30.h> |
Sylwester Nawrocki | f8e2e3e | 2011-01-03 08:07:30 -0300 | [diff] [blame] | 22 | #include <linux/videodev2.h> |
Paul Gortmaker | 7a707b8 | 2011-07-03 14:03:12 -0400 | [diff] [blame] | 23 | #include <linux/module.h> |
Sylwester Nawrocki | f8e2e3e | 2011-01-03 08:07:30 -0300 | [diff] [blame] | 24 | #include <media/v4l2-ctrls.h> |
| 25 | #include <media/v4l2-device.h> |
| 26 | #include <media/v4l2-mediabus.h> |
| 27 | #include <media/v4l2-subdev.h> |
| 28 | |
| 29 | static int debug; |
| 30 | module_param(debug, int, 0644); |
| 31 | MODULE_PARM_DESC(debug, "Enable module debug trace. Set to 1 to enable."); |
| 32 | |
| 33 | #define MODULE_NAME "NOON010PC30" |
| 34 | |
| 35 | /* |
| 36 | * Register offsets within a page |
| 37 | * b15..b8 - page id, b7..b0 - register address |
| 38 | */ |
| 39 | #define POWER_CTRL_REG 0x0001 |
| 40 | #define PAGEMODE_REG 0x03 |
| 41 | #define DEVICE_ID_REG 0x0004 |
| 42 | #define NOON010PC30_ID 0x86 |
| 43 | #define VDO_CTL_REG(n) (0x0010 + (n)) |
| 44 | #define SYNC_CTL_REG 0x0012 |
| 45 | /* Window size and position */ |
| 46 | #define WIN_ROWH_REG 0x0013 |
| 47 | #define WIN_ROWL_REG 0x0014 |
| 48 | #define WIN_COLH_REG 0x0015 |
| 49 | #define WIN_COLL_REG 0x0016 |
| 50 | #define WIN_HEIGHTH_REG 0x0017 |
| 51 | #define WIN_HEIGHTL_REG 0x0018 |
| 52 | #define WIN_WIDTHH_REG 0x0019 |
| 53 | #define WIN_WIDTHL_REG 0x001A |
| 54 | #define HBLANKH_REG 0x001B |
| 55 | #define HBLANKL_REG 0x001C |
| 56 | #define VSYNCH_REG 0x001D |
| 57 | #define VSYNCL_REG 0x001E |
| 58 | /* VSYNC control */ |
| 59 | #define VS_CTL_REG(n) (0x00A1 + (n)) |
| 60 | /* page 1 */ |
| 61 | #define ISP_CTL_REG(n) (0x0110 + (n)) |
| 62 | #define YOFS_REG 0x0119 |
| 63 | #define DARK_YOFS_REG 0x011A |
| 64 | #define SAT_CTL_REG 0x0120 |
| 65 | #define BSAT_REG 0x0121 |
| 66 | #define RSAT_REG 0x0122 |
| 67 | /* Color correction */ |
| 68 | #define CMC_CTL_REG 0x0130 |
| 69 | #define CMC_OFSGH_REG 0x0133 |
| 70 | #define CMC_OFSGL_REG 0x0135 |
| 71 | #define CMC_SIGN_REG 0x0136 |
| 72 | #define CMC_GOFS_REG 0x0137 |
| 73 | #define CMC_COEF_REG(n) (0x0138 + (n)) |
| 74 | #define CMC_OFS_REG(n) (0x0141 + (n)) |
| 75 | /* Gamma correction */ |
| 76 | #define GMA_CTL_REG 0x0160 |
| 77 | #define GMA_COEF_REG(n) (0x0161 + (n)) |
| 78 | /* Lens Shading */ |
| 79 | #define LENS_CTRL_REG 0x01D0 |
| 80 | #define LENS_XCEN_REG 0x01D1 |
| 81 | #define LENS_YCEN_REG 0x01D2 |
| 82 | #define LENS_RC_REG 0x01D3 |
| 83 | #define LENS_GC_REG 0x01D4 |
| 84 | #define LENS_BC_REG 0x01D5 |
| 85 | #define L_AGON_REG 0x01D6 |
| 86 | #define L_AGOFF_REG 0x01D7 |
| 87 | /* Page 3 - Auto Exposure */ |
| 88 | #define AE_CTL_REG(n) (0x0310 + (n)) |
| 89 | #define AE_CTL9_REG 0x032C |
| 90 | #define AE_CTL10_REG 0x032D |
| 91 | #define AE_YLVL_REG 0x031C |
| 92 | #define AE_YTH_REG(n) (0x031D + (n)) |
| 93 | #define AE_WGT_REG 0x0326 |
| 94 | #define EXP_TIMEH_REG 0x0333 |
| 95 | #define EXP_TIMEM_REG 0x0334 |
| 96 | #define EXP_TIMEL_REG 0x0335 |
| 97 | #define EXP_MMINH_REG 0x0336 |
| 98 | #define EXP_MMINL_REG 0x0337 |
| 99 | #define EXP_MMAXH_REG 0x0338 |
| 100 | #define EXP_MMAXM_REG 0x0339 |
| 101 | #define EXP_MMAXL_REG 0x033A |
| 102 | /* Page 4 - Auto White Balance */ |
| 103 | #define AWB_CTL_REG(n) (0x0410 + (n)) |
| 104 | #define AWB_ENABE 0x80 |
| 105 | #define AWB_WGHT_REG 0x0419 |
| 106 | #define BGAIN_PAR_REG(n) (0x044F + (n)) |
| 107 | /* Manual white balance, when AWB_CTL2[0]=1 */ |
| 108 | #define MWB_RGAIN_REG 0x0466 |
| 109 | #define MWB_BGAIN_REG 0x0467 |
| 110 | |
| 111 | /* The token to mark an array end */ |
| 112 | #define REG_TERM 0xFFFF |
| 113 | |
| 114 | struct noon010_format { |
| 115 | enum v4l2_mbus_pixelcode code; |
| 116 | enum v4l2_colorspace colorspace; |
| 117 | u16 ispctl1_reg; |
| 118 | }; |
| 119 | |
| 120 | struct noon010_frmsize { |
| 121 | u16 width; |
| 122 | u16 height; |
| 123 | int vid_ctl1; |
| 124 | }; |
| 125 | |
| 126 | static const char * const noon010_supply_name[] = { |
| 127 | "vdd_core", "vddio", "vdda" |
| 128 | }; |
| 129 | |
| 130 | #define NOON010_NUM_SUPPLIES ARRAY_SIZE(noon010_supply_name) |
| 131 | |
| 132 | struct noon010_info { |
| 133 | struct v4l2_subdev sd; |
Sylwester Nawrocki | 6426e14 | 2011-09-16 12:33:08 -0300 | [diff] [blame] | 134 | struct media_pad pad; |
Sylwester Nawrocki | f8e2e3e | 2011-01-03 08:07:30 -0300 | [diff] [blame] | 135 | struct v4l2_ctrl_handler hdl; |
Sylwester Nawrocki | 6426e14 | 2011-09-16 12:33:08 -0300 | [diff] [blame] | 136 | struct regulator_bulk_data supply[NOON010_NUM_SUPPLIES]; |
| 137 | u32 gpio_nreset; |
| 138 | u32 gpio_nstby; |
| 139 | |
| 140 | /* Protects the struct members below */ |
| 141 | struct mutex lock; |
| 142 | |
Sylwester Nawrocki | f8e2e3e | 2011-01-03 08:07:30 -0300 | [diff] [blame] | 143 | const struct noon010_format *curr_fmt; |
| 144 | const struct noon010_frmsize *curr_win; |
Sylwester Nawrocki | 6426e14 | 2011-09-16 12:33:08 -0300 | [diff] [blame] | 145 | unsigned int apply_new_cfg:1; |
| 146 | unsigned int streaming:1; |
Sylwester Nawrocki | f8e2e3e | 2011-01-03 08:07:30 -0300 | [diff] [blame] | 147 | unsigned int hflip:1; |
| 148 | unsigned int vflip:1; |
| 149 | unsigned int power:1; |
| 150 | u8 i2c_reg_page; |
Sylwester Nawrocki | f8e2e3e | 2011-01-03 08:07:30 -0300 | [diff] [blame] | 151 | }; |
| 152 | |
| 153 | struct i2c_regval { |
| 154 | u16 addr; |
| 155 | u16 val; |
| 156 | }; |
| 157 | |
| 158 | /* Supported resolutions. */ |
| 159 | static const struct noon010_frmsize noon010_sizes[] = { |
| 160 | { |
| 161 | .width = 352, |
| 162 | .height = 288, |
| 163 | .vid_ctl1 = 0, |
| 164 | }, { |
| 165 | .width = 176, |
| 166 | .height = 144, |
| 167 | .vid_ctl1 = 0x10, |
| 168 | }, { |
| 169 | .width = 88, |
| 170 | .height = 72, |
| 171 | .vid_ctl1 = 0x20, |
| 172 | }, |
| 173 | }; |
| 174 | |
| 175 | /* Supported pixel formats. */ |
| 176 | static const struct noon010_format noon010_formats[] = { |
| 177 | { |
| 178 | .code = V4L2_MBUS_FMT_YUYV8_2X8, |
| 179 | .colorspace = V4L2_COLORSPACE_JPEG, |
| 180 | .ispctl1_reg = 0x03, |
| 181 | }, { |
| 182 | .code = V4L2_MBUS_FMT_YVYU8_2X8, |
| 183 | .colorspace = V4L2_COLORSPACE_JPEG, |
| 184 | .ispctl1_reg = 0x02, |
| 185 | }, { |
| 186 | .code = V4L2_MBUS_FMT_VYUY8_2X8, |
| 187 | .colorspace = V4L2_COLORSPACE_JPEG, |
| 188 | .ispctl1_reg = 0, |
| 189 | }, { |
| 190 | .code = V4L2_MBUS_FMT_UYVY8_2X8, |
| 191 | .colorspace = V4L2_COLORSPACE_JPEG, |
| 192 | .ispctl1_reg = 0x01, |
| 193 | }, { |
| 194 | .code = V4L2_MBUS_FMT_RGB565_2X8_BE, |
| 195 | .colorspace = V4L2_COLORSPACE_JPEG, |
| 196 | .ispctl1_reg = 0x40, |
| 197 | }, |
| 198 | }; |
| 199 | |
| 200 | static const struct i2c_regval noon010_base_regs[] = { |
| 201 | { WIN_COLL_REG, 0x06 }, { HBLANKL_REG, 0x7C }, |
| 202 | /* Color corection and saturation */ |
| 203 | { ISP_CTL_REG(0), 0x30 }, { ISP_CTL_REG(2), 0x30 }, |
| 204 | { YOFS_REG, 0x80 }, { DARK_YOFS_REG, 0x04 }, |
| 205 | { SAT_CTL_REG, 0x1F }, { BSAT_REG, 0x90 }, |
| 206 | { CMC_CTL_REG, 0x0F }, { CMC_OFSGH_REG, 0x3C }, |
| 207 | { CMC_OFSGL_REG, 0x2C }, { CMC_SIGN_REG, 0x3F }, |
| 208 | { CMC_COEF_REG(0), 0x79 }, { CMC_OFS_REG(0), 0x00 }, |
| 209 | { CMC_COEF_REG(1), 0x39 }, { CMC_OFS_REG(1), 0x00 }, |
| 210 | { CMC_COEF_REG(2), 0x00 }, { CMC_OFS_REG(2), 0x00 }, |
| 211 | { CMC_COEF_REG(3), 0x11 }, { CMC_OFS_REG(3), 0x8B }, |
| 212 | { CMC_COEF_REG(4), 0x65 }, { CMC_OFS_REG(4), 0x07 }, |
| 213 | { CMC_COEF_REG(5), 0x14 }, { CMC_OFS_REG(5), 0x04 }, |
| 214 | { CMC_COEF_REG(6), 0x01 }, { CMC_OFS_REG(6), 0x9C }, |
| 215 | { CMC_COEF_REG(7), 0x33 }, { CMC_OFS_REG(7), 0x89 }, |
| 216 | { CMC_COEF_REG(8), 0x74 }, { CMC_OFS_REG(8), 0x25 }, |
| 217 | /* Automatic white balance */ |
| 218 | { AWB_CTL_REG(0), 0x78 }, { AWB_CTL_REG(1), 0x2E }, |
| 219 | { AWB_CTL_REG(2), 0x20 }, { AWB_CTL_REG(3), 0x85 }, |
| 220 | /* Auto exposure */ |
| 221 | { AE_CTL_REG(0), 0xDC }, { AE_CTL_REG(1), 0x81 }, |
| 222 | { AE_CTL_REG(2), 0x30 }, { AE_CTL_REG(3), 0xA5 }, |
| 223 | { AE_CTL_REG(4), 0x40 }, { AE_CTL_REG(5), 0x51 }, |
| 224 | { AE_CTL_REG(6), 0x33 }, { AE_CTL_REG(7), 0x7E }, |
| 225 | { AE_CTL9_REG, 0x00 }, { AE_CTL10_REG, 0x02 }, |
| 226 | { AE_YLVL_REG, 0x44 }, { AE_YTH_REG(0), 0x34 }, |
| 227 | { AE_YTH_REG(1), 0x30 }, { AE_WGT_REG, 0xD5 }, |
| 228 | /* Lens shading compensation */ |
| 229 | { LENS_CTRL_REG, 0x01 }, { LENS_XCEN_REG, 0x80 }, |
| 230 | { LENS_YCEN_REG, 0x70 }, { LENS_RC_REG, 0x53 }, |
| 231 | { LENS_GC_REG, 0x40 }, { LENS_BC_REG, 0x3E }, |
| 232 | { REG_TERM, 0 }, |
| 233 | }; |
| 234 | |
| 235 | static inline struct noon010_info *to_noon010(struct v4l2_subdev *sd) |
| 236 | { |
| 237 | return container_of(sd, struct noon010_info, sd); |
| 238 | } |
| 239 | |
| 240 | static inline struct v4l2_subdev *to_sd(struct v4l2_ctrl *ctrl) |
| 241 | { |
| 242 | return &container_of(ctrl->handler, struct noon010_info, hdl)->sd; |
| 243 | } |
| 244 | |
| 245 | static inline int set_i2c_page(struct noon010_info *info, |
| 246 | struct i2c_client *client, unsigned int reg) |
| 247 | { |
| 248 | u32 page = reg >> 8 & 0xFF; |
| 249 | int ret = 0; |
| 250 | |
| 251 | if (info->i2c_reg_page != page && (reg & 0xFF) != 0x03) { |
| 252 | ret = i2c_smbus_write_byte_data(client, PAGEMODE_REG, page); |
| 253 | if (!ret) |
| 254 | info->i2c_reg_page = page; |
| 255 | } |
| 256 | return ret; |
| 257 | } |
| 258 | |
| 259 | static int cam_i2c_read(struct v4l2_subdev *sd, u32 reg_addr) |
| 260 | { |
| 261 | struct i2c_client *client = v4l2_get_subdevdata(sd); |
| 262 | struct noon010_info *info = to_noon010(sd); |
| 263 | int ret = set_i2c_page(info, client, reg_addr); |
| 264 | |
| 265 | if (ret) |
| 266 | return ret; |
| 267 | return i2c_smbus_read_byte_data(client, reg_addr & 0xFF); |
| 268 | } |
| 269 | |
| 270 | static int cam_i2c_write(struct v4l2_subdev *sd, u32 reg_addr, u32 val) |
| 271 | { |
| 272 | struct i2c_client *client = v4l2_get_subdevdata(sd); |
| 273 | struct noon010_info *info = to_noon010(sd); |
| 274 | int ret = set_i2c_page(info, client, reg_addr); |
| 275 | |
| 276 | if (ret) |
| 277 | return ret; |
| 278 | return i2c_smbus_write_byte_data(client, reg_addr & 0xFF, val); |
| 279 | } |
| 280 | |
| 281 | static inline int noon010_bulk_write_reg(struct v4l2_subdev *sd, |
| 282 | const struct i2c_regval *msg) |
| 283 | { |
| 284 | while (msg->addr != REG_TERM) { |
| 285 | int ret = cam_i2c_write(sd, msg->addr, msg->val); |
| 286 | |
| 287 | if (ret) |
| 288 | return ret; |
| 289 | msg++; |
| 290 | } |
| 291 | return 0; |
| 292 | } |
| 293 | |
| 294 | /* Device reset and sleep mode control */ |
| 295 | static int noon010_power_ctrl(struct v4l2_subdev *sd, bool reset, bool sleep) |
| 296 | { |
| 297 | struct noon010_info *info = to_noon010(sd); |
| 298 | u8 reg = sleep ? 0xF1 : 0xF0; |
| 299 | int ret = 0; |
| 300 | |
Sylwester Nawrocki | bc36032 | 2011-09-12 10:34:03 -0300 | [diff] [blame] | 301 | if (reset) { |
Sylwester Nawrocki | f8e2e3e | 2011-01-03 08:07:30 -0300 | [diff] [blame] | 302 | ret = cam_i2c_write(sd, POWER_CTRL_REG, reg | 0x02); |
Sylwester Nawrocki | bc36032 | 2011-09-12 10:34:03 -0300 | [diff] [blame] | 303 | udelay(20); |
| 304 | } |
Sylwester Nawrocki | f8e2e3e | 2011-01-03 08:07:30 -0300 | [diff] [blame] | 305 | if (!ret) { |
| 306 | ret = cam_i2c_write(sd, POWER_CTRL_REG, reg); |
| 307 | if (reset && !ret) |
| 308 | info->i2c_reg_page = -1; |
| 309 | } |
| 310 | return ret; |
| 311 | } |
| 312 | |
| 313 | /* Automatic white balance control */ |
| 314 | static int noon010_enable_autowhitebalance(struct v4l2_subdev *sd, int on) |
| 315 | { |
| 316 | int ret; |
| 317 | |
| 318 | ret = cam_i2c_write(sd, AWB_CTL_REG(1), on ? 0x2E : 0x2F); |
| 319 | if (!ret) |
| 320 | ret = cam_i2c_write(sd, AWB_CTL_REG(0), on ? 0xFB : 0x7B); |
| 321 | return ret; |
| 322 | } |
| 323 | |
Sylwester Nawrocki | 6426e14 | 2011-09-16 12:33:08 -0300 | [diff] [blame] | 324 | /* Called with struct noon010_info.lock mutex held */ |
Sylwester Nawrocki | f8e2e3e | 2011-01-03 08:07:30 -0300 | [diff] [blame] | 325 | static int noon010_set_flip(struct v4l2_subdev *sd, int hflip, int vflip) |
| 326 | { |
| 327 | struct noon010_info *info = to_noon010(sd); |
| 328 | int reg, ret; |
| 329 | |
| 330 | reg = cam_i2c_read(sd, VDO_CTL_REG(1)); |
| 331 | if (reg < 0) |
| 332 | return reg; |
| 333 | |
| 334 | reg &= 0x7C; |
| 335 | if (hflip) |
| 336 | reg |= 0x01; |
| 337 | if (vflip) |
| 338 | reg |= 0x02; |
| 339 | |
| 340 | ret = cam_i2c_write(sd, VDO_CTL_REG(1), reg | 0x80); |
| 341 | if (!ret) { |
| 342 | info->hflip = hflip; |
| 343 | info->vflip = vflip; |
| 344 | } |
| 345 | return ret; |
| 346 | } |
| 347 | |
| 348 | /* Configure resolution and color format */ |
| 349 | static int noon010_set_params(struct v4l2_subdev *sd) |
| 350 | { |
| 351 | struct noon010_info *info = to_noon010(sd); |
Sylwester Nawrocki | f8e2e3e | 2011-01-03 08:07:30 -0300 | [diff] [blame] | 352 | |
Sylwester Nawrocki | 6426e14 | 2011-09-16 12:33:08 -0300 | [diff] [blame] | 353 | int ret = cam_i2c_write(sd, VDO_CTL_REG(0), |
| 354 | info->curr_win->vid_ctl1); |
| 355 | if (ret) |
| 356 | return ret; |
| 357 | return cam_i2c_write(sd, ISP_CTL_REG(0), |
| 358 | info->curr_fmt->ispctl1_reg); |
Sylwester Nawrocki | f8e2e3e | 2011-01-03 08:07:30 -0300 | [diff] [blame] | 359 | } |
| 360 | |
| 361 | /* Find nearest matching image pixel size. */ |
Sylwester Nawrocki | 6426e14 | 2011-09-16 12:33:08 -0300 | [diff] [blame] | 362 | static int noon010_try_frame_size(struct v4l2_mbus_framefmt *mf, |
| 363 | const struct noon010_frmsize **size) |
Sylwester Nawrocki | f8e2e3e | 2011-01-03 08:07:30 -0300 | [diff] [blame] | 364 | { |
| 365 | unsigned int min_err = ~0; |
| 366 | int i = ARRAY_SIZE(noon010_sizes); |
| 367 | const struct noon010_frmsize *fsize = &noon010_sizes[0], |
| 368 | *match = NULL; |
| 369 | |
| 370 | while (i--) { |
| 371 | int err = abs(fsize->width - mf->width) |
| 372 | + abs(fsize->height - mf->height); |
| 373 | |
| 374 | if (err < min_err) { |
| 375 | min_err = err; |
| 376 | match = fsize; |
| 377 | } |
| 378 | fsize++; |
| 379 | } |
| 380 | if (match) { |
| 381 | mf->width = match->width; |
| 382 | mf->height = match->height; |
Sylwester Nawrocki | 6426e14 | 2011-09-16 12:33:08 -0300 | [diff] [blame] | 383 | if (size) |
| 384 | *size = match; |
Sylwester Nawrocki | f8e2e3e | 2011-01-03 08:07:30 -0300 | [diff] [blame] | 385 | return 0; |
| 386 | } |
| 387 | return -EINVAL; |
| 388 | } |
| 389 | |
Sylwester Nawrocki | 6426e14 | 2011-09-16 12:33:08 -0300 | [diff] [blame] | 390 | /* Called with info.lock mutex held */ |
Sylwester Nawrocki | f8e2e3e | 2011-01-03 08:07:30 -0300 | [diff] [blame] | 391 | static int power_enable(struct noon010_info *info) |
| 392 | { |
| 393 | int ret; |
| 394 | |
| 395 | if (info->power) { |
| 396 | v4l2_info(&info->sd, "%s: sensor is already on\n", __func__); |
| 397 | return 0; |
| 398 | } |
| 399 | |
| 400 | if (gpio_is_valid(info->gpio_nstby)) |
| 401 | gpio_set_value(info->gpio_nstby, 0); |
| 402 | |
| 403 | if (gpio_is_valid(info->gpio_nreset)) |
| 404 | gpio_set_value(info->gpio_nreset, 0); |
| 405 | |
| 406 | ret = regulator_bulk_enable(NOON010_NUM_SUPPLIES, info->supply); |
| 407 | if (ret) |
| 408 | return ret; |
| 409 | |
| 410 | if (gpio_is_valid(info->gpio_nreset)) { |
| 411 | msleep(50); |
| 412 | gpio_set_value(info->gpio_nreset, 1); |
| 413 | } |
| 414 | if (gpio_is_valid(info->gpio_nstby)) { |
| 415 | udelay(1000); |
| 416 | gpio_set_value(info->gpio_nstby, 1); |
| 417 | } |
| 418 | if (gpio_is_valid(info->gpio_nreset)) { |
| 419 | udelay(1000); |
| 420 | gpio_set_value(info->gpio_nreset, 0); |
| 421 | msleep(100); |
| 422 | gpio_set_value(info->gpio_nreset, 1); |
| 423 | msleep(20); |
| 424 | } |
| 425 | info->power = 1; |
| 426 | |
| 427 | v4l2_dbg(1, debug, &info->sd, "%s: sensor is on\n", __func__); |
| 428 | return 0; |
| 429 | } |
| 430 | |
Sylwester Nawrocki | 6426e14 | 2011-09-16 12:33:08 -0300 | [diff] [blame] | 431 | /* Called with info.lock mutex held */ |
Sylwester Nawrocki | f8e2e3e | 2011-01-03 08:07:30 -0300 | [diff] [blame] | 432 | static int power_disable(struct noon010_info *info) |
| 433 | { |
| 434 | int ret; |
| 435 | |
| 436 | if (!info->power) { |
| 437 | v4l2_info(&info->sd, "%s: sensor is already off\n", __func__); |
| 438 | return 0; |
| 439 | } |
| 440 | |
| 441 | ret = regulator_bulk_disable(NOON010_NUM_SUPPLIES, info->supply); |
| 442 | if (ret) |
| 443 | return ret; |
| 444 | |
| 445 | if (gpio_is_valid(info->gpio_nstby)) |
| 446 | gpio_set_value(info->gpio_nstby, 0); |
| 447 | |
| 448 | if (gpio_is_valid(info->gpio_nreset)) |
| 449 | gpio_set_value(info->gpio_nreset, 0); |
| 450 | |
| 451 | info->power = 0; |
| 452 | |
| 453 | v4l2_dbg(1, debug, &info->sd, "%s: sensor is off\n", __func__); |
| 454 | |
| 455 | return 0; |
| 456 | } |
| 457 | |
| 458 | static int noon010_s_ctrl(struct v4l2_ctrl *ctrl) |
| 459 | { |
| 460 | struct v4l2_subdev *sd = to_sd(ctrl); |
Sylwester Nawrocki | 6426e14 | 2011-09-16 12:33:08 -0300 | [diff] [blame] | 461 | struct noon010_info *info = to_noon010(sd); |
| 462 | int ret = 0; |
Sylwester Nawrocki | f8e2e3e | 2011-01-03 08:07:30 -0300 | [diff] [blame] | 463 | |
| 464 | v4l2_dbg(1, debug, sd, "%s: ctrl_id: %d, value: %d\n", |
| 465 | __func__, ctrl->id, ctrl->val); |
| 466 | |
Sylwester Nawrocki | 6426e14 | 2011-09-16 12:33:08 -0300 | [diff] [blame] | 467 | mutex_lock(&info->lock); |
| 468 | /* |
| 469 | * If the device is not powered up by the host driver do |
| 470 | * not apply any controls to H/W at this time. Instead |
| 471 | * the controls will be restored right after power-up. |
| 472 | */ |
| 473 | if (!info->power) |
| 474 | goto unlock; |
| 475 | |
Sylwester Nawrocki | f8e2e3e | 2011-01-03 08:07:30 -0300 | [diff] [blame] | 476 | switch (ctrl->id) { |
| 477 | case V4L2_CID_AUTO_WHITE_BALANCE: |
Sylwester Nawrocki | 6426e14 | 2011-09-16 12:33:08 -0300 | [diff] [blame] | 478 | ret = noon010_enable_autowhitebalance(sd, ctrl->val); |
| 479 | break; |
Sylwester Nawrocki | f8e2e3e | 2011-01-03 08:07:30 -0300 | [diff] [blame] | 480 | case V4L2_CID_BLUE_BALANCE: |
Sylwester Nawrocki | 6426e14 | 2011-09-16 12:33:08 -0300 | [diff] [blame] | 481 | ret = cam_i2c_write(sd, MWB_BGAIN_REG, ctrl->val); |
| 482 | break; |
Sylwester Nawrocki | f8e2e3e | 2011-01-03 08:07:30 -0300 | [diff] [blame] | 483 | case V4L2_CID_RED_BALANCE: |
Sylwester Nawrocki | 6426e14 | 2011-09-16 12:33:08 -0300 | [diff] [blame] | 484 | ret = cam_i2c_write(sd, MWB_RGAIN_REG, ctrl->val); |
| 485 | break; |
Sylwester Nawrocki | f8e2e3e | 2011-01-03 08:07:30 -0300 | [diff] [blame] | 486 | default: |
Sylwester Nawrocki | 6426e14 | 2011-09-16 12:33:08 -0300 | [diff] [blame] | 487 | ret = -EINVAL; |
Sylwester Nawrocki | f8e2e3e | 2011-01-03 08:07:30 -0300 | [diff] [blame] | 488 | } |
Sylwester Nawrocki | 6426e14 | 2011-09-16 12:33:08 -0300 | [diff] [blame] | 489 | unlock: |
| 490 | mutex_unlock(&info->lock); |
| 491 | return ret; |
Sylwester Nawrocki | f8e2e3e | 2011-01-03 08:07:30 -0300 | [diff] [blame] | 492 | } |
| 493 | |
Sylwester Nawrocki | 6426e14 | 2011-09-16 12:33:08 -0300 | [diff] [blame] | 494 | static int noon010_enum_mbus_code(struct v4l2_subdev *sd, |
| 495 | struct v4l2_subdev_fh *fh, |
| 496 | struct v4l2_subdev_mbus_code_enum *code) |
Sylwester Nawrocki | f8e2e3e | 2011-01-03 08:07:30 -0300 | [diff] [blame] | 497 | { |
Sylwester Nawrocki | 6426e14 | 2011-09-16 12:33:08 -0300 | [diff] [blame] | 498 | if (code->index >= ARRAY_SIZE(noon010_formats)) |
Sylwester Nawrocki | f8e2e3e | 2011-01-03 08:07:30 -0300 | [diff] [blame] | 499 | return -EINVAL; |
| 500 | |
Sylwester Nawrocki | 6426e14 | 2011-09-16 12:33:08 -0300 | [diff] [blame] | 501 | code->code = noon010_formats[code->index].code; |
Sylwester Nawrocki | f8e2e3e | 2011-01-03 08:07:30 -0300 | [diff] [blame] | 502 | return 0; |
| 503 | } |
| 504 | |
Sylwester Nawrocki | 6426e14 | 2011-09-16 12:33:08 -0300 | [diff] [blame] | 505 | static int noon010_get_fmt(struct v4l2_subdev *sd, struct v4l2_subdev_fh *fh, |
| 506 | struct v4l2_subdev_format *fmt) |
Sylwester Nawrocki | f8e2e3e | 2011-01-03 08:07:30 -0300 | [diff] [blame] | 507 | { |
| 508 | struct noon010_info *info = to_noon010(sd); |
Sylwester Nawrocki | 6426e14 | 2011-09-16 12:33:08 -0300 | [diff] [blame] | 509 | struct v4l2_mbus_framefmt *mf; |
Sylwester Nawrocki | f8e2e3e | 2011-01-03 08:07:30 -0300 | [diff] [blame] | 510 | |
Sylwester Nawrocki | 6426e14 | 2011-09-16 12:33:08 -0300 | [diff] [blame] | 511 | if (fmt->which == V4L2_SUBDEV_FORMAT_TRY) { |
| 512 | if (fh) { |
| 513 | mf = v4l2_subdev_get_try_format(fh, 0); |
| 514 | fmt->format = *mf; |
| 515 | } |
| 516 | return 0; |
Sylwester Nawrocki | f8e2e3e | 2011-01-03 08:07:30 -0300 | [diff] [blame] | 517 | } |
Sylwester Nawrocki | 6426e14 | 2011-09-16 12:33:08 -0300 | [diff] [blame] | 518 | mf = &fmt->format; |
Sylwester Nawrocki | f8e2e3e | 2011-01-03 08:07:30 -0300 | [diff] [blame] | 519 | |
Sylwester Nawrocki | 6426e14 | 2011-09-16 12:33:08 -0300 | [diff] [blame] | 520 | mutex_lock(&info->lock); |
| 521 | mf->width = info->curr_win->width; |
| 522 | mf->height = info->curr_win->height; |
| 523 | mf->code = info->curr_fmt->code; |
| 524 | mf->colorspace = info->curr_fmt->colorspace; |
| 525 | mf->field = V4L2_FIELD_NONE; |
Sylwester Nawrocki | f8e2e3e | 2011-01-03 08:07:30 -0300 | [diff] [blame] | 526 | |
Sylwester Nawrocki | 6426e14 | 2011-09-16 12:33:08 -0300 | [diff] [blame] | 527 | mutex_unlock(&info->lock); |
Sylwester Nawrocki | f8e2e3e | 2011-01-03 08:07:30 -0300 | [diff] [blame] | 528 | return 0; |
| 529 | } |
| 530 | |
| 531 | /* Return nearest media bus frame format. */ |
Sylwester Nawrocki | 6426e14 | 2011-09-16 12:33:08 -0300 | [diff] [blame] | 532 | static const struct noon010_format *noon010_try_fmt(struct v4l2_subdev *sd, |
Sylwester Nawrocki | f8e2e3e | 2011-01-03 08:07:30 -0300 | [diff] [blame] | 533 | struct v4l2_mbus_framefmt *mf) |
| 534 | { |
| 535 | int i = ARRAY_SIZE(noon010_formats); |
| 536 | |
Sylwester Nawrocki | 6426e14 | 2011-09-16 12:33:08 -0300 | [diff] [blame] | 537 | while (--i) |
Sylwester Nawrocki | f8e2e3e | 2011-01-03 08:07:30 -0300 | [diff] [blame] | 538 | if (mf->code == noon010_formats[i].code) |
| 539 | break; |
Sylwester Nawrocki | f8e2e3e | 2011-01-03 08:07:30 -0300 | [diff] [blame] | 540 | mf->code = noon010_formats[i].code; |
| 541 | |
| 542 | return &noon010_formats[i]; |
| 543 | } |
| 544 | |
Sylwester Nawrocki | 6426e14 | 2011-09-16 12:33:08 -0300 | [diff] [blame] | 545 | static int noon010_set_fmt(struct v4l2_subdev *sd, struct v4l2_subdev_fh *fh, |
| 546 | struct v4l2_subdev_format *fmt) |
Sylwester Nawrocki | f8e2e3e | 2011-01-03 08:07:30 -0300 | [diff] [blame] | 547 | { |
| 548 | struct noon010_info *info = to_noon010(sd); |
Sylwester Nawrocki | 6426e14 | 2011-09-16 12:33:08 -0300 | [diff] [blame] | 549 | const struct noon010_frmsize *size = NULL; |
| 550 | const struct noon010_format *nf; |
| 551 | struct v4l2_mbus_framefmt *mf; |
| 552 | int ret = 0; |
Sylwester Nawrocki | f8e2e3e | 2011-01-03 08:07:30 -0300 | [diff] [blame] | 553 | |
Sylwester Nawrocki | 6426e14 | 2011-09-16 12:33:08 -0300 | [diff] [blame] | 554 | nf = noon010_try_fmt(sd, &fmt->format); |
| 555 | noon010_try_frame_size(&fmt->format, &size); |
| 556 | fmt->format.colorspace = V4L2_COLORSPACE_JPEG; |
Sylwester Nawrocki | f8e2e3e | 2011-01-03 08:07:30 -0300 | [diff] [blame] | 557 | |
Sylwester Nawrocki | 6426e14 | 2011-09-16 12:33:08 -0300 | [diff] [blame] | 558 | if (fmt->which == V4L2_SUBDEV_FORMAT_TRY) { |
| 559 | if (fh) { |
| 560 | mf = v4l2_subdev_get_try_format(fh, 0); |
| 561 | *mf = fmt->format; |
| 562 | } |
| 563 | return 0; |
| 564 | } |
| 565 | mutex_lock(&info->lock); |
| 566 | if (!info->streaming) { |
| 567 | info->apply_new_cfg = 1; |
| 568 | info->curr_fmt = nf; |
| 569 | info->curr_win = size; |
| 570 | } else { |
| 571 | ret = -EBUSY; |
| 572 | } |
| 573 | mutex_unlock(&info->lock); |
| 574 | return ret; |
Sylwester Nawrocki | f8e2e3e | 2011-01-03 08:07:30 -0300 | [diff] [blame] | 575 | } |
| 576 | |
Sylwester Nawrocki | bc36032 | 2011-09-12 10:34:03 -0300 | [diff] [blame] | 577 | /* Called with struct noon010_info.lock mutex held */ |
Sylwester Nawrocki | f8e2e3e | 2011-01-03 08:07:30 -0300 | [diff] [blame] | 578 | static int noon010_base_config(struct v4l2_subdev *sd) |
| 579 | { |
Sylwester Nawrocki | bc36032 | 2011-09-12 10:34:03 -0300 | [diff] [blame] | 580 | int ret = noon010_bulk_write_reg(sd, noon010_base_regs); |
| 581 | if (!ret) |
Sylwester Nawrocki | f8e2e3e | 2011-01-03 08:07:30 -0300 | [diff] [blame] | 582 | ret = noon010_set_params(sd); |
Sylwester Nawrocki | f8e2e3e | 2011-01-03 08:07:30 -0300 | [diff] [blame] | 583 | if (!ret) |
| 584 | ret = noon010_set_flip(sd, 1, 0); |
Sylwester Nawrocki | f8e2e3e | 2011-01-03 08:07:30 -0300 | [diff] [blame] | 585 | |
Sylwester Nawrocki | f8e2e3e | 2011-01-03 08:07:30 -0300 | [diff] [blame] | 586 | return ret; |
| 587 | } |
| 588 | |
| 589 | static int noon010_s_power(struct v4l2_subdev *sd, int on) |
| 590 | { |
| 591 | struct noon010_info *info = to_noon010(sd); |
Sylwester Nawrocki | bc36032 | 2011-09-12 10:34:03 -0300 | [diff] [blame] | 592 | int ret; |
Sylwester Nawrocki | f8e2e3e | 2011-01-03 08:07:30 -0300 | [diff] [blame] | 593 | |
Sylwester Nawrocki | bc36032 | 2011-09-12 10:34:03 -0300 | [diff] [blame] | 594 | mutex_lock(&info->lock); |
Sylwester Nawrocki | f8e2e3e | 2011-01-03 08:07:30 -0300 | [diff] [blame] | 595 | if (on) { |
| 596 | ret = power_enable(info); |
Sylwester Nawrocki | bc36032 | 2011-09-12 10:34:03 -0300 | [diff] [blame] | 597 | if (!ret) |
| 598 | ret = noon010_base_config(sd); |
Sylwester Nawrocki | f8e2e3e | 2011-01-03 08:07:30 -0300 | [diff] [blame] | 599 | } else { |
| 600 | noon010_power_ctrl(sd, false, true); |
| 601 | ret = power_disable(info); |
Sylwester Nawrocki | f8e2e3e | 2011-01-03 08:07:30 -0300 | [diff] [blame] | 602 | } |
Sylwester Nawrocki | bc36032 | 2011-09-12 10:34:03 -0300 | [diff] [blame] | 603 | mutex_unlock(&info->lock); |
| 604 | |
| 605 | /* Restore the controls state */ |
| 606 | if (!ret && on) |
| 607 | ret = v4l2_ctrl_handler_setup(&info->hdl); |
Sylwester Nawrocki | f8e2e3e | 2011-01-03 08:07:30 -0300 | [diff] [blame] | 608 | |
| 609 | return ret; |
| 610 | } |
| 611 | |
Sylwester Nawrocki | 6426e14 | 2011-09-16 12:33:08 -0300 | [diff] [blame] | 612 | static int noon010_s_stream(struct v4l2_subdev *sd, int on) |
| 613 | { |
| 614 | struct noon010_info *info = to_noon010(sd); |
| 615 | int ret = 0; |
| 616 | |
| 617 | mutex_lock(&info->lock); |
| 618 | if (!info->streaming != !on) { |
| 619 | ret = noon010_power_ctrl(sd, false, !on); |
| 620 | if (!ret) |
| 621 | info->streaming = on; |
| 622 | } |
| 623 | if (!ret && on && info->apply_new_cfg) { |
| 624 | ret = noon010_set_params(sd); |
| 625 | if (!ret) |
| 626 | info->apply_new_cfg = 0; |
| 627 | } |
| 628 | mutex_unlock(&info->lock); |
| 629 | return ret; |
| 630 | } |
| 631 | |
Sylwester Nawrocki | f8e2e3e | 2011-01-03 08:07:30 -0300 | [diff] [blame] | 632 | static int noon010_log_status(struct v4l2_subdev *sd) |
| 633 | { |
| 634 | struct noon010_info *info = to_noon010(sd); |
| 635 | |
| 636 | v4l2_ctrl_handler_log_status(&info->hdl, sd->name); |
| 637 | return 0; |
| 638 | } |
| 639 | |
Sylwester Nawrocki | 6426e14 | 2011-09-16 12:33:08 -0300 | [diff] [blame] | 640 | static int noon010_open(struct v4l2_subdev *sd, struct v4l2_subdev_fh *fh) |
| 641 | { |
| 642 | struct v4l2_mbus_framefmt *mf = v4l2_subdev_get_try_format(fh, 0); |
| 643 | |
| 644 | mf->width = noon010_sizes[0].width; |
| 645 | mf->height = noon010_sizes[0].height; |
| 646 | mf->code = noon010_formats[0].code; |
| 647 | mf->colorspace = V4L2_COLORSPACE_JPEG; |
| 648 | mf->field = V4L2_FIELD_NONE; |
| 649 | return 0; |
| 650 | } |
| 651 | |
| 652 | static const struct v4l2_subdev_internal_ops noon010_subdev_internal_ops = { |
| 653 | .open = noon010_open, |
| 654 | }; |
| 655 | |
Sylwester Nawrocki | f8e2e3e | 2011-01-03 08:07:30 -0300 | [diff] [blame] | 656 | static const struct v4l2_ctrl_ops noon010_ctrl_ops = { |
| 657 | .s_ctrl = noon010_s_ctrl, |
| 658 | }; |
| 659 | |
| 660 | static const struct v4l2_subdev_core_ops noon010_core_ops = { |
Sylwester Nawrocki | f8e2e3e | 2011-01-03 08:07:30 -0300 | [diff] [blame] | 661 | .s_power = noon010_s_power, |
Sylwester Nawrocki | f8e2e3e | 2011-01-03 08:07:30 -0300 | [diff] [blame] | 662 | .log_status = noon010_log_status, |
| 663 | }; |
| 664 | |
Sylwester Nawrocki | 6426e14 | 2011-09-16 12:33:08 -0300 | [diff] [blame] | 665 | static struct v4l2_subdev_pad_ops noon010_pad_ops = { |
| 666 | .enum_mbus_code = noon010_enum_mbus_code, |
| 667 | .get_fmt = noon010_get_fmt, |
| 668 | .set_fmt = noon010_set_fmt, |
| 669 | }; |
| 670 | |
| 671 | static struct v4l2_subdev_video_ops noon010_video_ops = { |
| 672 | .s_stream = noon010_s_stream, |
Sylwester Nawrocki | f8e2e3e | 2011-01-03 08:07:30 -0300 | [diff] [blame] | 673 | }; |
| 674 | |
| 675 | static const struct v4l2_subdev_ops noon010_ops = { |
| 676 | .core = &noon010_core_ops, |
Sylwester Nawrocki | 6426e14 | 2011-09-16 12:33:08 -0300 | [diff] [blame] | 677 | .pad = &noon010_pad_ops, |
Sylwester Nawrocki | f8e2e3e | 2011-01-03 08:07:30 -0300 | [diff] [blame] | 678 | .video = &noon010_video_ops, |
| 679 | }; |
| 680 | |
| 681 | /* Return 0 if NOON010PC30L sensor type was detected or -ENODEV otherwise. */ |
| 682 | static int noon010_detect(struct i2c_client *client, struct noon010_info *info) |
| 683 | { |
| 684 | int ret; |
| 685 | |
| 686 | ret = power_enable(info); |
| 687 | if (ret) |
| 688 | return ret; |
| 689 | |
| 690 | ret = i2c_smbus_read_byte_data(client, DEVICE_ID_REG); |
| 691 | if (ret < 0) |
| 692 | dev_err(&client->dev, "I2C read failed: 0x%X\n", ret); |
| 693 | |
| 694 | power_disable(info); |
| 695 | |
| 696 | return ret == NOON010PC30_ID ? 0 : -ENODEV; |
| 697 | } |
| 698 | |
| 699 | static int noon010_probe(struct i2c_client *client, |
| 700 | const struct i2c_device_id *id) |
| 701 | { |
| 702 | struct noon010_info *info; |
| 703 | struct v4l2_subdev *sd; |
| 704 | const struct noon010pc30_platform_data *pdata |
| 705 | = client->dev.platform_data; |
| 706 | int ret; |
| 707 | int i; |
| 708 | |
| 709 | if (!pdata) { |
| 710 | dev_err(&client->dev, "No platform data!\n"); |
| 711 | return -EIO; |
| 712 | } |
| 713 | |
Laurent Pinchart | c02b211 | 2013-05-02 08:29:43 -0300 | [diff] [blame] | 714 | info = devm_kzalloc(&client->dev, sizeof(*info), GFP_KERNEL); |
Sylwester Nawrocki | f8e2e3e | 2011-01-03 08:07:30 -0300 | [diff] [blame] | 715 | if (!info) |
| 716 | return -ENOMEM; |
| 717 | |
Sylwester Nawrocki | 6426e14 | 2011-09-16 12:33:08 -0300 | [diff] [blame] | 718 | mutex_init(&info->lock); |
Sylwester Nawrocki | f8e2e3e | 2011-01-03 08:07:30 -0300 | [diff] [blame] | 719 | sd = &info->sd; |
Sylwester Nawrocki | f8e2e3e | 2011-01-03 08:07:30 -0300 | [diff] [blame] | 720 | v4l2_i2c_subdev_init(sd, client, &noon010_ops); |
Sylwester Nawrocki | 2138d73 | 2012-02-17 15:59:27 -0300 | [diff] [blame] | 721 | strlcpy(sd->name, MODULE_NAME, sizeof(sd->name)); |
Sylwester Nawrocki | f8e2e3e | 2011-01-03 08:07:30 -0300 | [diff] [blame] | 722 | |
Sylwester Nawrocki | 6426e14 | 2011-09-16 12:33:08 -0300 | [diff] [blame] | 723 | sd->internal_ops = &noon010_subdev_internal_ops; |
| 724 | sd->flags |= V4L2_SUBDEV_FL_HAS_DEVNODE; |
| 725 | |
Sylwester Nawrocki | f8e2e3e | 2011-01-03 08:07:30 -0300 | [diff] [blame] | 726 | v4l2_ctrl_handler_init(&info->hdl, 3); |
| 727 | |
| 728 | v4l2_ctrl_new_std(&info->hdl, &noon010_ctrl_ops, |
| 729 | V4L2_CID_AUTO_WHITE_BALANCE, 0, 1, 1, 1); |
| 730 | v4l2_ctrl_new_std(&info->hdl, &noon010_ctrl_ops, |
| 731 | V4L2_CID_RED_BALANCE, 0, 127, 1, 64); |
| 732 | v4l2_ctrl_new_std(&info->hdl, &noon010_ctrl_ops, |
| 733 | V4L2_CID_BLUE_BALANCE, 0, 127, 1, 64); |
| 734 | |
| 735 | sd->ctrl_handler = &info->hdl; |
| 736 | |
| 737 | ret = info->hdl.error; |
| 738 | if (ret) |
| 739 | goto np_err; |
| 740 | |
Sylwester Nawrocki | f8e2e3e | 2011-01-03 08:07:30 -0300 | [diff] [blame] | 741 | info->i2c_reg_page = -1; |
| 742 | info->gpio_nreset = -EINVAL; |
| 743 | info->gpio_nstby = -EINVAL; |
Sylwester Nawrocki | bc36032 | 2011-09-12 10:34:03 -0300 | [diff] [blame] | 744 | info->curr_fmt = &noon010_formats[0]; |
| 745 | info->curr_win = &noon010_sizes[0]; |
Sylwester Nawrocki | f8e2e3e | 2011-01-03 08:07:30 -0300 | [diff] [blame] | 746 | |
| 747 | if (gpio_is_valid(pdata->gpio_nreset)) { |
Laurent Pinchart | b015ba2 | 2013-05-02 08:29:43 -0300 | [diff] [blame] | 748 | ret = devm_gpio_request_one(&client->dev, pdata->gpio_nreset, |
| 749 | GPIOF_OUT_INIT_LOW, |
| 750 | "NOON010PC30 NRST"); |
Sylwester Nawrocki | f8e2e3e | 2011-01-03 08:07:30 -0300 | [diff] [blame] | 751 | if (ret) { |
| 752 | dev_err(&client->dev, "GPIO request error: %d\n", ret); |
| 753 | goto np_err; |
| 754 | } |
| 755 | info->gpio_nreset = pdata->gpio_nreset; |
Sylwester Nawrocki | f8e2e3e | 2011-01-03 08:07:30 -0300 | [diff] [blame] | 756 | gpio_export(info->gpio_nreset, 0); |
| 757 | } |
| 758 | |
| 759 | if (gpio_is_valid(pdata->gpio_nstby)) { |
Laurent Pinchart | b015ba2 | 2013-05-02 08:29:43 -0300 | [diff] [blame] | 760 | ret = devm_gpio_request_one(&client->dev, pdata->gpio_nstby, |
| 761 | GPIOF_OUT_INIT_LOW, |
| 762 | "NOON010PC30 NSTBY"); |
Sylwester Nawrocki | f8e2e3e | 2011-01-03 08:07:30 -0300 | [diff] [blame] | 763 | if (ret) { |
| 764 | dev_err(&client->dev, "GPIO request error: %d\n", ret); |
Laurent Pinchart | b015ba2 | 2013-05-02 08:29:43 -0300 | [diff] [blame] | 765 | goto np_err; |
Sylwester Nawrocki | f8e2e3e | 2011-01-03 08:07:30 -0300 | [diff] [blame] | 766 | } |
| 767 | info->gpio_nstby = pdata->gpio_nstby; |
Sylwester Nawrocki | f8e2e3e | 2011-01-03 08:07:30 -0300 | [diff] [blame] | 768 | gpio_export(info->gpio_nstby, 0); |
| 769 | } |
| 770 | |
| 771 | for (i = 0; i < NOON010_NUM_SUPPLIES; i++) |
| 772 | info->supply[i].supply = noon010_supply_name[i]; |
| 773 | |
Laurent Pinchart | 07e0e5b | 2013-05-02 08:29:43 -0300 | [diff] [blame] | 774 | ret = devm_regulator_bulk_get(&client->dev, NOON010_NUM_SUPPLIES, |
Sylwester Nawrocki | f8e2e3e | 2011-01-03 08:07:30 -0300 | [diff] [blame] | 775 | info->supply); |
| 776 | if (ret) |
Laurent Pinchart | b015ba2 | 2013-05-02 08:29:43 -0300 | [diff] [blame] | 777 | goto np_err; |
Sylwester Nawrocki | f8e2e3e | 2011-01-03 08:07:30 -0300 | [diff] [blame] | 778 | |
Sylwester Nawrocki | 6426e14 | 2011-09-16 12:33:08 -0300 | [diff] [blame] | 779 | info->pad.flags = MEDIA_PAD_FL_SOURCE; |
| 780 | sd->entity.type = MEDIA_ENT_T_V4L2_SUBDEV_SENSOR; |
| 781 | ret = media_entity_init(&sd->entity, 1, &info->pad, 0); |
| 782 | if (ret < 0) |
Laurent Pinchart | 07e0e5b | 2013-05-02 08:29:43 -0300 | [diff] [blame] | 783 | goto np_err; |
Sylwester Nawrocki | 6426e14 | 2011-09-16 12:33:08 -0300 | [diff] [blame] | 784 | |
Sylwester Nawrocki | f8e2e3e | 2011-01-03 08:07:30 -0300 | [diff] [blame] | 785 | ret = noon010_detect(client, info); |
| 786 | if (!ret) |
| 787 | return 0; |
| 788 | |
Sylwester Nawrocki | f8e2e3e | 2011-01-03 08:07:30 -0300 | [diff] [blame] | 789 | np_err: |
| 790 | v4l2_ctrl_handler_free(&info->hdl); |
| 791 | v4l2_device_unregister_subdev(sd); |
Sylwester Nawrocki | f8e2e3e | 2011-01-03 08:07:30 -0300 | [diff] [blame] | 792 | return ret; |
| 793 | } |
| 794 | |
| 795 | static int noon010_remove(struct i2c_client *client) |
| 796 | { |
| 797 | struct v4l2_subdev *sd = i2c_get_clientdata(client); |
| 798 | struct noon010_info *info = to_noon010(sd); |
| 799 | |
| 800 | v4l2_device_unregister_subdev(sd); |
| 801 | v4l2_ctrl_handler_free(&info->hdl); |
Sylwester Nawrocki | 6426e14 | 2011-09-16 12:33:08 -0300 | [diff] [blame] | 802 | media_entity_cleanup(&sd->entity); |
Laurent Pinchart | c02b211 | 2013-05-02 08:29:43 -0300 | [diff] [blame] | 803 | |
Sylwester Nawrocki | f8e2e3e | 2011-01-03 08:07:30 -0300 | [diff] [blame] | 804 | return 0; |
| 805 | } |
| 806 | |
| 807 | static const struct i2c_device_id noon010_id[] = { |
| 808 | { MODULE_NAME, 0 }, |
| 809 | { }, |
| 810 | }; |
| 811 | MODULE_DEVICE_TABLE(i2c, noon010_id); |
| 812 | |
| 813 | |
| 814 | static struct i2c_driver noon010_i2c_driver = { |
| 815 | .driver = { |
| 816 | .name = MODULE_NAME |
| 817 | }, |
| 818 | .probe = noon010_probe, |
| 819 | .remove = noon010_remove, |
| 820 | .id_table = noon010_id, |
| 821 | }; |
| 822 | |
Axel Lin | c6e8d86 | 2012-02-12 06:56:32 -0300 | [diff] [blame] | 823 | module_i2c_driver(noon010_i2c_driver); |
Sylwester Nawrocki | f8e2e3e | 2011-01-03 08:07:30 -0300 | [diff] [blame] | 824 | |
| 825 | MODULE_DESCRIPTION("Siliconfile NOON010PC30 camera driver"); |
| 826 | MODULE_AUTHOR("Sylwester Nawrocki <s.nawrocki@samsung.com>"); |
| 827 | MODULE_LICENSE("GPL"); |