stv06xx_vv6410.c 8.6 KB

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  1. /*
  2. * Copyright (c) 2001 Jean-Fredric Clere, Nikolas Zimmermann, Georg Acher
  3. * Mark Cave-Ayland, Carlo E Prelz, Dick Streefland
  4. * Copyright (c) 2002, 2003 Tuukka Toivonen
  5. * Copyright (c) 2008 Erik Andrén
  6. *
  7. * This program is free software; you can redistribute it and/or modify
  8. * it under the terms of the GNU General Public License as published by
  9. * the Free Software Foundation; either version 2 of the License, or
  10. * (at your option) any later version.
  11. *
  12. * This program is distributed in the hope that it will be useful,
  13. * but WITHOUT ANY WARRANTY; without even the implied warranty of
  14. * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
  15. * GNU General Public License for more details.
  16. *
  17. * You should have received a copy of the GNU General Public License
  18. * along with this program; if not, write to the Free Software
  19. * Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA
  20. *
  21. * P/N 861037: Sensor HDCS1000 ASIC STV0600
  22. * P/N 861050-0010: Sensor HDCS1000 ASIC STV0600
  23. * P/N 861050-0020: Sensor Photobit PB100 ASIC STV0600-1 - QuickCam Express
  24. * P/N 861055: Sensor ST VV6410 ASIC STV0610 - LEGO cam
  25. * P/N 861075-0040: Sensor HDCS1000 ASIC
  26. * P/N 961179-0700: Sensor ST VV6410 ASIC STV0602 - Dexxa WebCam USB
  27. * P/N 861040-0000: Sensor ST VV6410 ASIC STV0610 - QuickCam Web
  28. */
  29. #define pr_fmt(fmt) KBUILD_MODNAME ": " fmt
  30. #include "stv06xx_vv6410.h"
  31. static struct v4l2_pix_format vv6410_mode[] = {
  32. {
  33. 356,
  34. 292,
  35. V4L2_PIX_FMT_SGRBG8,
  36. V4L2_FIELD_NONE,
  37. .sizeimage = 356 * 292,
  38. .bytesperline = 356,
  39. .colorspace = V4L2_COLORSPACE_SRGB,
  40. .priv = 0
  41. }
  42. };
  43. static const struct ctrl vv6410_ctrl[] = {
  44. #define HFLIP_IDX 0
  45. {
  46. {
  47. .id = V4L2_CID_HFLIP,
  48. .type = V4L2_CTRL_TYPE_BOOLEAN,
  49. .name = "horizontal flip",
  50. .minimum = 0,
  51. .maximum = 1,
  52. .step = 1,
  53. .default_value = 0
  54. },
  55. .set = vv6410_set_hflip,
  56. .get = vv6410_get_hflip
  57. },
  58. #define VFLIP_IDX 1
  59. {
  60. {
  61. .id = V4L2_CID_VFLIP,
  62. .type = V4L2_CTRL_TYPE_BOOLEAN,
  63. .name = "vertical flip",
  64. .minimum = 0,
  65. .maximum = 1,
  66. .step = 1,
  67. .default_value = 0
  68. },
  69. .set = vv6410_set_vflip,
  70. .get = vv6410_get_vflip
  71. },
  72. #define GAIN_IDX 2
  73. {
  74. {
  75. .id = V4L2_CID_GAIN,
  76. .type = V4L2_CTRL_TYPE_INTEGER,
  77. .name = "analog gain",
  78. .minimum = 0,
  79. .maximum = 15,
  80. .step = 1,
  81. .default_value = 10
  82. },
  83. .set = vv6410_set_analog_gain,
  84. .get = vv6410_get_analog_gain
  85. },
  86. #define EXPOSURE_IDX 3
  87. {
  88. {
  89. .id = V4L2_CID_EXPOSURE,
  90. .type = V4L2_CTRL_TYPE_INTEGER,
  91. .name = "exposure",
  92. .minimum = 0,
  93. .maximum = 32768,
  94. .step = 1,
  95. .default_value = 20000
  96. },
  97. .set = vv6410_set_exposure,
  98. .get = vv6410_get_exposure
  99. }
  100. };
  101. static int vv6410_probe(struct sd *sd)
  102. {
  103. u16 data;
  104. int err, i;
  105. s32 *sensor_settings;
  106. err = stv06xx_read_sensor(sd, VV6410_DEVICEH, &data);
  107. if (err < 0)
  108. return -ENODEV;
  109. if (data == 0x19) {
  110. pr_info("vv6410 sensor detected\n");
  111. sensor_settings = kmalloc(ARRAY_SIZE(vv6410_ctrl) * sizeof(s32),
  112. GFP_KERNEL);
  113. if (!sensor_settings)
  114. return -ENOMEM;
  115. sd->gspca_dev.cam.cam_mode = vv6410_mode;
  116. sd->gspca_dev.cam.nmodes = ARRAY_SIZE(vv6410_mode);
  117. sd->desc.ctrls = vv6410_ctrl;
  118. sd->desc.nctrls = ARRAY_SIZE(vv6410_ctrl);
  119. for (i = 0; i < sd->desc.nctrls; i++)
  120. sensor_settings[i] = vv6410_ctrl[i].qctrl.default_value;
  121. sd->sensor_priv = sensor_settings;
  122. return 0;
  123. }
  124. return -ENODEV;
  125. }
  126. static int vv6410_init(struct sd *sd)
  127. {
  128. int err = 0, i;
  129. s32 *sensor_settings = sd->sensor_priv;
  130. for (i = 0; i < ARRAY_SIZE(stv_bridge_init); i++) {
  131. stv06xx_write_bridge(sd, stv_bridge_init[i].addr, stv_bridge_init[i].data);
  132. }
  133. if (err < 0)
  134. return err;
  135. err = stv06xx_write_sensor_bytes(sd, (u8 *) vv6410_sensor_init,
  136. ARRAY_SIZE(vv6410_sensor_init));
  137. if (err < 0)
  138. return err;
  139. err = vv6410_set_exposure(&sd->gspca_dev,
  140. sensor_settings[EXPOSURE_IDX]);
  141. if (err < 0)
  142. return err;
  143. err = vv6410_set_analog_gain(&sd->gspca_dev,
  144. sensor_settings[GAIN_IDX]);
  145. return (err < 0) ? err : 0;
  146. }
  147. static void vv6410_disconnect(struct sd *sd)
  148. {
  149. sd->sensor = NULL;
  150. kfree(sd->sensor_priv);
  151. }
  152. static int vv6410_start(struct sd *sd)
  153. {
  154. int err;
  155. struct cam *cam = &sd->gspca_dev.cam;
  156. u32 priv = cam->cam_mode[sd->gspca_dev.curr_mode].priv;
  157. if (priv & VV6410_SUBSAMPLE) {
  158. PDEBUG(D_CONF, "Enabling subsampling");
  159. stv06xx_write_bridge(sd, STV_Y_CTRL, 0x02);
  160. stv06xx_write_bridge(sd, STV_X_CTRL, 0x06);
  161. stv06xx_write_bridge(sd, STV_SCAN_RATE, 0x10);
  162. } else {
  163. stv06xx_write_bridge(sd, STV_Y_CTRL, 0x01);
  164. stv06xx_write_bridge(sd, STV_X_CTRL, 0x0a);
  165. stv06xx_write_bridge(sd, STV_SCAN_RATE, 0x00);
  166. }
  167. /* Turn on LED */
  168. err = stv06xx_write_bridge(sd, STV_LED_CTRL, LED_ON);
  169. if (err < 0)
  170. return err;
  171. err = stv06xx_write_sensor(sd, VV6410_SETUP0, 0);
  172. if (err < 0)
  173. return err;
  174. PDEBUG(D_STREAM, "Starting stream");
  175. return 0;
  176. }
  177. static int vv6410_stop(struct sd *sd)
  178. {
  179. int err;
  180. /* Turn off LED */
  181. err = stv06xx_write_bridge(sd, STV_LED_CTRL, LED_OFF);
  182. if (err < 0)
  183. return err;
  184. err = stv06xx_write_sensor(sd, VV6410_SETUP0, VV6410_LOW_POWER_MODE);
  185. if (err < 0)
  186. return err;
  187. PDEBUG(D_STREAM, "Halting stream");
  188. return (err < 0) ? err : 0;
  189. }
  190. static int vv6410_dump(struct sd *sd)
  191. {
  192. u8 i;
  193. int err = 0;
  194. pr_info("Dumping all vv6410 sensor registers\n");
  195. for (i = 0; i < 0xff && !err; i++) {
  196. u16 data;
  197. err = stv06xx_read_sensor(sd, i, &data);
  198. pr_info("Register 0x%x contained 0x%x\n", i, data);
  199. }
  200. return (err < 0) ? err : 0;
  201. }
  202. static int vv6410_get_hflip(struct gspca_dev *gspca_dev, __s32 *val)
  203. {
  204. struct sd *sd = (struct sd *) gspca_dev;
  205. s32 *sensor_settings = sd->sensor_priv;
  206. *val = sensor_settings[HFLIP_IDX];
  207. PDEBUG(D_V4L2, "Read horizontal flip %d", *val);
  208. return 0;
  209. }
  210. static int vv6410_set_hflip(struct gspca_dev *gspca_dev, __s32 val)
  211. {
  212. int err;
  213. u16 i2c_data;
  214. struct sd *sd = (struct sd *) gspca_dev;
  215. s32 *sensor_settings = sd->sensor_priv;
  216. sensor_settings[HFLIP_IDX] = val;
  217. err = stv06xx_read_sensor(sd, VV6410_DATAFORMAT, &i2c_data);
  218. if (err < 0)
  219. return err;
  220. if (val)
  221. i2c_data |= VV6410_HFLIP;
  222. else
  223. i2c_data &= ~VV6410_HFLIP;
  224. PDEBUG(D_V4L2, "Set horizontal flip to %d", val);
  225. err = stv06xx_write_sensor(sd, VV6410_DATAFORMAT, i2c_data);
  226. return (err < 0) ? err : 0;
  227. }
  228. static int vv6410_get_vflip(struct gspca_dev *gspca_dev, __s32 *val)
  229. {
  230. struct sd *sd = (struct sd *) gspca_dev;
  231. s32 *sensor_settings = sd->sensor_priv;
  232. *val = sensor_settings[VFLIP_IDX];
  233. PDEBUG(D_V4L2, "Read vertical flip %d", *val);
  234. return 0;
  235. }
  236. static int vv6410_set_vflip(struct gspca_dev *gspca_dev, __s32 val)
  237. {
  238. int err;
  239. u16 i2c_data;
  240. struct sd *sd = (struct sd *) gspca_dev;
  241. s32 *sensor_settings = sd->sensor_priv;
  242. sensor_settings[VFLIP_IDX] = val;
  243. err = stv06xx_read_sensor(sd, VV6410_DATAFORMAT, &i2c_data);
  244. if (err < 0)
  245. return err;
  246. if (val)
  247. i2c_data |= VV6410_VFLIP;
  248. else
  249. i2c_data &= ~VV6410_VFLIP;
  250. PDEBUG(D_V4L2, "Set vertical flip to %d", val);
  251. err = stv06xx_write_sensor(sd, VV6410_DATAFORMAT, i2c_data);
  252. return (err < 0) ? err : 0;
  253. }
  254. static int vv6410_get_analog_gain(struct gspca_dev *gspca_dev, __s32 *val)
  255. {
  256. struct sd *sd = (struct sd *) gspca_dev;
  257. s32 *sensor_settings = sd->sensor_priv;
  258. *val = sensor_settings[GAIN_IDX];
  259. PDEBUG(D_V4L2, "Read analog gain %d", *val);
  260. return 0;
  261. }
  262. static int vv6410_set_analog_gain(struct gspca_dev *gspca_dev, __s32 val)
  263. {
  264. int err;
  265. struct sd *sd = (struct sd *) gspca_dev;
  266. s32 *sensor_settings = sd->sensor_priv;
  267. sensor_settings[GAIN_IDX] = val;
  268. PDEBUG(D_V4L2, "Set analog gain to %d", val);
  269. err = stv06xx_write_sensor(sd, VV6410_ANALOGGAIN, 0xf0 | (val & 0xf));
  270. return (err < 0) ? err : 0;
  271. }
  272. static int vv6410_get_exposure(struct gspca_dev *gspca_dev, __s32 *val)
  273. {
  274. struct sd *sd = (struct sd *) gspca_dev;
  275. s32 *sensor_settings = sd->sensor_priv;
  276. *val = sensor_settings[EXPOSURE_IDX];
  277. PDEBUG(D_V4L2, "Read exposure %d", *val);
  278. return 0;
  279. }
  280. static int vv6410_set_exposure(struct gspca_dev *gspca_dev, __s32 val)
  281. {
  282. int err;
  283. struct sd *sd = (struct sd *) gspca_dev;
  284. s32 *sensor_settings = sd->sensor_priv;
  285. unsigned int fine, coarse;
  286. sensor_settings[EXPOSURE_IDX] = val;
  287. val = (val * val >> 14) + val / 4;
  288. fine = val % VV6410_CIF_LINELENGTH;
  289. coarse = min(512, val / VV6410_CIF_LINELENGTH);
  290. PDEBUG(D_V4L2, "Set coarse exposure to %d, fine expsure to %d",
  291. coarse, fine);
  292. err = stv06xx_write_sensor(sd, VV6410_FINEH, fine >> 8);
  293. if (err < 0)
  294. goto out;
  295. err = stv06xx_write_sensor(sd, VV6410_FINEL, fine & 0xff);
  296. if (err < 0)
  297. goto out;
  298. err = stv06xx_write_sensor(sd, VV6410_COARSEH, coarse >> 8);
  299. if (err < 0)
  300. goto out;
  301. err = stv06xx_write_sensor(sd, VV6410_COARSEL, coarse & 0xff);
  302. out:
  303. return err;
  304. }