msp3400-driver.c 28 KB

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  1. /*
  2. * Programming the mspx4xx sound processor family
  3. *
  4. * (c) 1997-2001 Gerd Knorr <kraxel@bytesex.org>
  5. *
  6. * what works and what doesn't:
  7. *
  8. * AM-Mono
  9. * Support for Hauppauge cards added (decoding handled by tuner) added by
  10. * Frederic Crozat <fcrozat@mail.dotcom.fr>
  11. *
  12. * FM-Mono
  13. * should work. The stereo modes are backward compatible to FM-mono,
  14. * therefore FM-Mono should be allways available.
  15. *
  16. * FM-Stereo (B/G, used in germany)
  17. * should work, with autodetect
  18. *
  19. * FM-Stereo (satellite)
  20. * should work, no autodetect (i.e. default is mono, but you can
  21. * switch to stereo -- untested)
  22. *
  23. * NICAM (B/G, L , used in UK, Scandinavia, Spain and France)
  24. * should work, with autodetect. Support for NICAM was added by
  25. * Pekka Pietikainen <pp@netppl.fi>
  26. *
  27. * TODO:
  28. * - better SAT support
  29. *
  30. * 980623 Thomas Sailer (sailer@ife.ee.ethz.ch)
  31. * using soundcore instead of OSS
  32. *
  33. * This program is free software; you can redistribute it and/or
  34. * modify it under the terms of the GNU General Public License
  35. * as published by the Free Software Foundation; either version 2
  36. * of the License, or (at your option) any later version.
  37. *
  38. * This program is distributed in the hope that it will be useful,
  39. * but WITHOUT ANY WARRANTY; without even the implied warranty of
  40. * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
  41. * GNU General Public License for more details.
  42. *
  43. * You should have received a copy of the GNU General Public License
  44. * along with this program; if not, write to the Free Software
  45. * Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301, USA.
  46. */
  47. #include <linux/kernel.h>
  48. #include <linux/module.h>
  49. #include <linux/slab.h>
  50. #include <linux/i2c.h>
  51. #include <linux/videodev.h>
  52. #include <linux/videodev2.h>
  53. #include <media/v4l2-common.h>
  54. #include <media/tvaudio.h>
  55. #include <media/msp3400.h>
  56. #include <linux/kthread.h>
  57. #include <linux/freezer.h>
  58. #include "msp3400-driver.h"
  59. /* ---------------------------------------------------------------------- */
  60. MODULE_DESCRIPTION("device driver for msp34xx TV sound processor");
  61. MODULE_AUTHOR("Gerd Knorr");
  62. MODULE_LICENSE("GPL");
  63. /* module parameters */
  64. static int opmode = OPMODE_AUTO;
  65. int msp_debug; /* msp_debug output */
  66. int msp_once; /* no continous stereo monitoring */
  67. int msp_amsound; /* hard-wire AM sound at 6.5 Hz (france),
  68. the autoscan seems work well only with FM... */
  69. int msp_standard = 1; /* Override auto detect of audio msp_standard, if needed. */
  70. int msp_dolby;
  71. int msp_stereo_thresh = 0x190; /* a2 threshold for stereo/bilingual
  72. (msp34xxg only) 0x00a0-0x03c0 */
  73. /* read-only */
  74. module_param(opmode, int, 0444);
  75. /* read-write */
  76. module_param_named(once,msp_once, bool, 0644);
  77. module_param_named(debug,msp_debug, int, 0644);
  78. module_param_named(stereo_threshold,msp_stereo_thresh, int, 0644);
  79. module_param_named(standard,msp_standard, int, 0644);
  80. module_param_named(amsound,msp_amsound, bool, 0644);
  81. module_param_named(dolby,msp_dolby, bool, 0644);
  82. MODULE_PARM_DESC(opmode, "Forces a MSP3400 opmode. 0=Manual, 1=Autodetect, 2=Autodetect and autoselect");
  83. MODULE_PARM_DESC(once, "No continuous stereo monitoring");
  84. MODULE_PARM_DESC(debug, "Enable debug messages [0-3]");
  85. MODULE_PARM_DESC(stereo_threshold, "Sets signal threshold to activate stereo");
  86. MODULE_PARM_DESC(standard, "Specify audio standard: 32 = NTSC, 64 = radio, Default: Autodetect");
  87. MODULE_PARM_DESC(amsound, "Hardwire AM sound at 6.5Hz (France), FM can autoscan");
  88. MODULE_PARM_DESC(dolby, "Activates Dolby processsing");
  89. /* ---------------------------------------------------------------------- */
  90. /* control subaddress */
  91. #define I2C_MSP_CONTROL 0x00
  92. /* demodulator unit subaddress */
  93. #define I2C_MSP_DEM 0x10
  94. /* DSP unit subaddress */
  95. #define I2C_MSP_DSP 0x12
  96. /* Addresses to scan */
  97. static unsigned short normal_i2c[] = { 0x80 >> 1, 0x88 >> 1, I2C_CLIENT_END };
  98. I2C_CLIENT_INSMOD;
  99. /* ----------------------------------------------------------------------- */
  100. /* functions for talking to the MSP3400C Sound processor */
  101. int msp_reset(struct i2c_client *client)
  102. {
  103. /* reset and read revision code */
  104. static u8 reset_off[3] = { I2C_MSP_CONTROL, 0x80, 0x00 };
  105. static u8 reset_on[3] = { I2C_MSP_CONTROL, 0x00, 0x00 };
  106. static u8 write[3] = { I2C_MSP_DSP + 1, 0x00, 0x1e };
  107. u8 read[2];
  108. struct i2c_msg reset[2] = {
  109. { client->addr, I2C_M_IGNORE_NAK, 3, reset_off },
  110. { client->addr, I2C_M_IGNORE_NAK, 3, reset_on },
  111. };
  112. struct i2c_msg test[2] = {
  113. { client->addr, 0, 3, write },
  114. { client->addr, I2C_M_RD, 2, read },
  115. };
  116. v4l_dbg(3, msp_debug, client, "msp_reset\n");
  117. if (i2c_transfer(client->adapter, &reset[0], 1) != 1 ||
  118. i2c_transfer(client->adapter, &reset[1], 1) != 1 ||
  119. i2c_transfer(client->adapter, test, 2) != 2) {
  120. v4l_err(client, "chip reset failed\n");
  121. return -1;
  122. }
  123. return 0;
  124. }
  125. static int msp_read(struct i2c_client *client, int dev, int addr)
  126. {
  127. int err, retval;
  128. u8 write[3];
  129. u8 read[2];
  130. struct i2c_msg msgs[2] = {
  131. { client->addr, 0, 3, write },
  132. { client->addr, I2C_M_RD, 2, read }
  133. };
  134. write[0] = dev + 1;
  135. write[1] = addr >> 8;
  136. write[2] = addr & 0xff;
  137. for (err = 0; err < 3; err++) {
  138. if (i2c_transfer(client->adapter, msgs, 2) == 2)
  139. break;
  140. v4l_warn(client, "I/O error #%d (read 0x%02x/0x%02x)\n", err,
  141. dev, addr);
  142. schedule_timeout_interruptible(msecs_to_jiffies(10));
  143. }
  144. if (err == 3) {
  145. v4l_warn(client, "giving up, resetting chip. Sound will go off, sorry folks :-|\n");
  146. msp_reset(client);
  147. return -1;
  148. }
  149. retval = read[0] << 8 | read[1];
  150. v4l_dbg(3, msp_debug, client, "msp_read(0x%x, 0x%x): 0x%x\n", dev, addr, retval);
  151. return retval;
  152. }
  153. int msp_read_dem(struct i2c_client *client, int addr)
  154. {
  155. return msp_read(client, I2C_MSP_DEM, addr);
  156. }
  157. int msp_read_dsp(struct i2c_client *client, int addr)
  158. {
  159. return msp_read(client, I2C_MSP_DSP, addr);
  160. }
  161. static int msp_write(struct i2c_client *client, int dev, int addr, int val)
  162. {
  163. int err;
  164. u8 buffer[5];
  165. buffer[0] = dev;
  166. buffer[1] = addr >> 8;
  167. buffer[2] = addr & 0xff;
  168. buffer[3] = val >> 8;
  169. buffer[4] = val & 0xff;
  170. v4l_dbg(3, msp_debug, client, "msp_write(0x%x, 0x%x, 0x%x)\n", dev, addr, val);
  171. for (err = 0; err < 3; err++) {
  172. if (i2c_master_send(client, buffer, 5) == 5)
  173. break;
  174. v4l_warn(client, "I/O error #%d (write 0x%02x/0x%02x)\n", err,
  175. dev, addr);
  176. schedule_timeout_interruptible(msecs_to_jiffies(10));
  177. }
  178. if (err == 3) {
  179. v4l_warn(client, "giving up, resetting chip. Sound will go off, sorry folks :-|\n");
  180. msp_reset(client);
  181. return -1;
  182. }
  183. return 0;
  184. }
  185. int msp_write_dem(struct i2c_client *client, int addr, int val)
  186. {
  187. return msp_write(client, I2C_MSP_DEM, addr, val);
  188. }
  189. int msp_write_dsp(struct i2c_client *client, int addr, int val)
  190. {
  191. return msp_write(client, I2C_MSP_DSP, addr, val);
  192. }
  193. /* ----------------------------------------------------------------------- *
  194. * bits 9 8 5 - SCART DSP input Select:
  195. * 0 0 0 - SCART 1 to DSP input (reset position)
  196. * 0 1 0 - MONO to DSP input
  197. * 1 0 0 - SCART 2 to DSP input
  198. * 1 1 1 - Mute DSP input
  199. *
  200. * bits 11 10 6 - SCART 1 Output Select:
  201. * 0 0 0 - undefined (reset position)
  202. * 0 1 0 - SCART 2 Input to SCART 1 Output (for devices with 2 SCARTS)
  203. * 1 0 0 - MONO input to SCART 1 Output
  204. * 1 1 0 - SCART 1 DA to SCART 1 Output
  205. * 0 0 1 - SCART 2 DA to SCART 1 Output
  206. * 0 1 1 - SCART 1 Input to SCART 1 Output
  207. * 1 1 1 - Mute SCART 1 Output
  208. *
  209. * bits 13 12 7 - SCART 2 Output Select (for devices with 2 Output SCART):
  210. * 0 0 0 - SCART 1 DA to SCART 2 Output (reset position)
  211. * 0 1 0 - SCART 1 Input to SCART 2 Output
  212. * 1 0 0 - MONO input to SCART 2 Output
  213. * 0 0 1 - SCART 2 DA to SCART 2 Output
  214. * 0 1 1 - SCART 2 Input to SCART 2 Output
  215. * 1 1 0 - Mute SCART 2 Output
  216. *
  217. * Bits 4 to 0 should be zero.
  218. * ----------------------------------------------------------------------- */
  219. static int scarts[3][9] = {
  220. /* MASK IN1 IN2 IN3 IN4 IN1_DA IN2_DA MONO MUTE */
  221. /* SCART DSP Input select */
  222. { 0x0320, 0x0000, 0x0200, 0x0300, 0x0020, -1, -1, 0x0100, 0x0320 },
  223. /* SCART1 Output select */
  224. { 0x0c40, 0x0440, 0x0400, 0x0000, 0x0840, 0x0c00, 0x0040, 0x0800, 0x0c40 },
  225. /* SCART2 Output select */
  226. { 0x3080, 0x1000, 0x1080, 0x2080, 0x3080, 0x0000, 0x0080, 0x2000, 0x3000 },
  227. };
  228. static char *scart_names[] = {
  229. "in1", "in2", "in3", "in4", "in1 da", "in2 da", "mono", "mute"
  230. };
  231. void msp_set_scart(struct i2c_client *client, int in, int out)
  232. {
  233. struct msp_state *state = i2c_get_clientdata(client);
  234. state->in_scart = in;
  235. if (in >= 0 && in <= 7 && out >= 0 && out <= 2) {
  236. if (-1 == scarts[out][in + 1])
  237. return;
  238. state->acb &= ~scarts[out][0];
  239. state->acb |= scarts[out][in + 1];
  240. } else
  241. state->acb = 0xf60; /* Mute Input and SCART 1 Output */
  242. v4l_dbg(1, msp_debug, client, "scart switch: %s => %d (ACB=0x%04x)\n",
  243. scart_names[in], out, state->acb);
  244. msp_write_dsp(client, 0x13, state->acb);
  245. /* Sets I2S speed 0 = 1.024 Mbps, 1 = 2.048 Mbps */
  246. if (state->has_i2s_conf)
  247. msp_write_dem(client, 0x40, state->i2s_mode);
  248. }
  249. void msp_set_audio(struct i2c_client *client)
  250. {
  251. struct msp_state *state = i2c_get_clientdata(client);
  252. int bal = 0, bass, treble, loudness;
  253. int val = 0;
  254. int reallymuted = state->muted | state->scan_in_progress;
  255. if (!reallymuted)
  256. val = (state->volume * 0x7f / 65535) << 8;
  257. v4l_dbg(1, msp_debug, client, "mute=%s scanning=%s volume=%d\n",
  258. state->muted ? "on" : "off", state->scan_in_progress ? "yes" : "no",
  259. state->volume);
  260. msp_write_dsp(client, 0x0000, val);
  261. msp_write_dsp(client, 0x0007, reallymuted ? 0x1 : (val | 0x1));
  262. if (state->has_scart2_out_volume)
  263. msp_write_dsp(client, 0x0040, reallymuted ? 0x1 : (val | 0x1));
  264. if (state->has_headphones)
  265. msp_write_dsp(client, 0x0006, val);
  266. if (!state->has_sound_processing)
  267. return;
  268. if (val)
  269. bal = (u8)((state->balance / 256) - 128);
  270. bass = ((state->bass - 32768) * 0x60 / 65535) << 8;
  271. treble = ((state->treble - 32768) * 0x60 / 65535) << 8;
  272. loudness = state->loudness ? ((5 * 4) << 8) : 0;
  273. v4l_dbg(1, msp_debug, client, "balance=%d bass=%d treble=%d loudness=%d\n",
  274. state->balance, state->bass, state->treble, state->loudness);
  275. msp_write_dsp(client, 0x0001, bal << 8);
  276. msp_write_dsp(client, 0x0002, bass);
  277. msp_write_dsp(client, 0x0003, treble);
  278. msp_write_dsp(client, 0x0004, loudness);
  279. if (!state->has_headphones)
  280. return;
  281. msp_write_dsp(client, 0x0030, bal << 8);
  282. msp_write_dsp(client, 0x0031, bass);
  283. msp_write_dsp(client, 0x0032, treble);
  284. msp_write_dsp(client, 0x0033, loudness);
  285. }
  286. /* ------------------------------------------------------------------------ */
  287. static void msp_wake_thread(struct i2c_client *client)
  288. {
  289. struct msp_state *state = i2c_get_clientdata(client);
  290. if (NULL == state->kthread)
  291. return;
  292. state->watch_stereo = 0;
  293. state->restart = 1;
  294. wake_up_interruptible(&state->wq);
  295. }
  296. int msp_sleep(struct msp_state *state, int timeout)
  297. {
  298. DECLARE_WAITQUEUE(wait, current);
  299. add_wait_queue(&state->wq, &wait);
  300. if (!kthread_should_stop()) {
  301. if (timeout < 0) {
  302. set_current_state(TASK_INTERRUPTIBLE);
  303. schedule();
  304. } else {
  305. schedule_timeout_interruptible
  306. (msecs_to_jiffies(timeout));
  307. }
  308. }
  309. remove_wait_queue(&state->wq, &wait);
  310. try_to_freeze();
  311. return state->restart;
  312. }
  313. /* ------------------------------------------------------------------------ */
  314. #ifdef CONFIG_VIDEO_V4L1
  315. static int msp_mode_v4l2_to_v4l1(int rxsubchans, int audmode)
  316. {
  317. if (rxsubchans == V4L2_TUNER_SUB_MONO)
  318. return VIDEO_SOUND_MONO;
  319. if (rxsubchans == V4L2_TUNER_SUB_STEREO)
  320. return VIDEO_SOUND_STEREO;
  321. if (audmode == V4L2_TUNER_MODE_LANG2)
  322. return VIDEO_SOUND_LANG2;
  323. return VIDEO_SOUND_LANG1;
  324. }
  325. static int msp_mode_v4l1_to_v4l2(int mode)
  326. {
  327. if (mode & VIDEO_SOUND_STEREO)
  328. return V4L2_TUNER_MODE_STEREO;
  329. if (mode & VIDEO_SOUND_LANG2)
  330. return V4L2_TUNER_MODE_LANG2;
  331. if (mode & VIDEO_SOUND_LANG1)
  332. return V4L2_TUNER_MODE_LANG1;
  333. return V4L2_TUNER_MODE_MONO;
  334. }
  335. #endif
  336. static int msp_get_ctrl(struct i2c_client *client, struct v4l2_control *ctrl)
  337. {
  338. struct msp_state *state = i2c_get_clientdata(client);
  339. switch (ctrl->id) {
  340. case V4L2_CID_AUDIO_VOLUME:
  341. ctrl->value = state->volume;
  342. break;
  343. case V4L2_CID_AUDIO_MUTE:
  344. ctrl->value = state->muted;
  345. break;
  346. case V4L2_CID_AUDIO_BALANCE:
  347. if (!state->has_sound_processing)
  348. return -EINVAL;
  349. ctrl->value = state->balance;
  350. break;
  351. case V4L2_CID_AUDIO_BASS:
  352. if (!state->has_sound_processing)
  353. return -EINVAL;
  354. ctrl->value = state->bass;
  355. break;
  356. case V4L2_CID_AUDIO_TREBLE:
  357. if (!state->has_sound_processing)
  358. return -EINVAL;
  359. ctrl->value = state->treble;
  360. break;
  361. case V4L2_CID_AUDIO_LOUDNESS:
  362. if (!state->has_sound_processing)
  363. return -EINVAL;
  364. ctrl->value = state->loudness;
  365. break;
  366. default:
  367. return -EINVAL;
  368. }
  369. return 0;
  370. }
  371. static int msp_set_ctrl(struct i2c_client *client, struct v4l2_control *ctrl)
  372. {
  373. struct msp_state *state = i2c_get_clientdata(client);
  374. switch (ctrl->id) {
  375. case V4L2_CID_AUDIO_VOLUME:
  376. state->volume = ctrl->value;
  377. if (state->volume == 0)
  378. state->balance = 32768;
  379. break;
  380. case V4L2_CID_AUDIO_MUTE:
  381. if (ctrl->value < 0 || ctrl->value >= 2)
  382. return -ERANGE;
  383. state->muted = ctrl->value;
  384. break;
  385. case V4L2_CID_AUDIO_BASS:
  386. if (!state->has_sound_processing)
  387. return -EINVAL;
  388. state->bass = ctrl->value;
  389. break;
  390. case V4L2_CID_AUDIO_TREBLE:
  391. if (!state->has_sound_processing)
  392. return -EINVAL;
  393. state->treble = ctrl->value;
  394. break;
  395. case V4L2_CID_AUDIO_LOUDNESS:
  396. if (!state->has_sound_processing)
  397. return -EINVAL;
  398. state->loudness = ctrl->value;
  399. break;
  400. case V4L2_CID_AUDIO_BALANCE:
  401. if (!state->has_sound_processing)
  402. return -EINVAL;
  403. state->balance = ctrl->value;
  404. break;
  405. default:
  406. return -EINVAL;
  407. }
  408. msp_set_audio(client);
  409. return 0;
  410. }
  411. static int msp_command(struct i2c_client *client, unsigned int cmd, void *arg)
  412. {
  413. struct msp_state *state = i2c_get_clientdata(client);
  414. if (msp_debug >= 2)
  415. v4l_i2c_print_ioctl(client, cmd);
  416. switch (cmd) {
  417. case AUDC_SET_RADIO:
  418. if (state->radio)
  419. return 0;
  420. state->radio = 1;
  421. v4l_dbg(1, msp_debug, client, "switching to radio mode\n");
  422. state->watch_stereo = 0;
  423. switch (state->opmode) {
  424. case OPMODE_MANUAL:
  425. /* set msp3400 to FM radio mode */
  426. msp3400c_set_mode(client, MSP_MODE_FM_RADIO);
  427. msp3400c_set_carrier(client, MSP_CARRIER(10.7),
  428. MSP_CARRIER(10.7));
  429. msp_set_audio(client);
  430. break;
  431. case OPMODE_AUTODETECT:
  432. case OPMODE_AUTOSELECT:
  433. /* the thread will do for us */
  434. msp_wake_thread(client);
  435. break;
  436. }
  437. break;
  438. /* --- v4l ioctls --- */
  439. /* take care: bttv does userspace copying, we'll get a
  440. kernel pointer here... */
  441. #ifdef CONFIG_VIDEO_V4L1
  442. case VIDIOCGAUDIO:
  443. {
  444. struct video_audio *va = arg;
  445. va->flags |= VIDEO_AUDIO_VOLUME | VIDEO_AUDIO_MUTABLE;
  446. if (state->has_sound_processing)
  447. va->flags |= VIDEO_AUDIO_BALANCE |
  448. VIDEO_AUDIO_BASS |
  449. VIDEO_AUDIO_TREBLE;
  450. if (state->muted)
  451. va->flags |= VIDEO_AUDIO_MUTE;
  452. va->volume = state->volume;
  453. va->balance = state->volume ? state->balance : 32768;
  454. va->bass = state->bass;
  455. va->treble = state->treble;
  456. if (state->radio)
  457. break;
  458. if (state->opmode == OPMODE_AUTOSELECT)
  459. msp_detect_stereo(client);
  460. va->mode = msp_mode_v4l2_to_v4l1(state->rxsubchans, state->audmode);
  461. break;
  462. }
  463. case VIDIOCSAUDIO:
  464. {
  465. struct video_audio *va = arg;
  466. state->muted = (va->flags & VIDEO_AUDIO_MUTE);
  467. state->volume = va->volume;
  468. state->balance = va->balance;
  469. state->bass = va->bass;
  470. state->treble = va->treble;
  471. msp_set_audio(client);
  472. if (va->mode != 0 && state->radio == 0 &&
  473. state->audmode != msp_mode_v4l1_to_v4l2(va->mode)) {
  474. state->audmode = msp_mode_v4l1_to_v4l2(va->mode);
  475. msp_set_audmode(client);
  476. }
  477. break;
  478. }
  479. case VIDIOCSCHAN:
  480. {
  481. struct video_channel *vc = arg;
  482. int update = 0;
  483. v4l2_std_id std;
  484. if (state->radio)
  485. update = 1;
  486. state->radio = 0;
  487. if (vc->norm == VIDEO_MODE_PAL)
  488. std = V4L2_STD_PAL;
  489. else if (vc->norm == VIDEO_MODE_SECAM)
  490. std = V4L2_STD_SECAM;
  491. else
  492. std = V4L2_STD_NTSC;
  493. if (std != state->v4l2_std) {
  494. state->v4l2_std = std;
  495. update = 1;
  496. }
  497. if (update)
  498. msp_wake_thread(client);
  499. break;
  500. }
  501. case VIDIOCSFREQ:
  502. {
  503. /* new channel -- kick audio carrier scan */
  504. msp_wake_thread(client);
  505. break;
  506. }
  507. #endif
  508. case VIDIOC_S_FREQUENCY:
  509. {
  510. /* new channel -- kick audio carrier scan */
  511. msp_wake_thread(client);
  512. break;
  513. }
  514. /* --- v4l2 ioctls --- */
  515. case VIDIOC_S_STD:
  516. {
  517. v4l2_std_id *id = arg;
  518. int update = state->radio || state->v4l2_std != *id;
  519. state->v4l2_std = *id;
  520. state->radio = 0;
  521. if (update)
  522. msp_wake_thread(client);
  523. return 0;
  524. }
  525. case VIDIOC_INT_G_AUDIO_ROUTING:
  526. {
  527. struct v4l2_routing *rt = arg;
  528. *rt = state->routing;
  529. break;
  530. }
  531. case VIDIOC_INT_S_AUDIO_ROUTING:
  532. {
  533. struct v4l2_routing *rt = arg;
  534. int tuner = (rt->input >> 3) & 1;
  535. int sc_in = rt->input & 0x7;
  536. int sc1_out = rt->output & 0xf;
  537. int sc2_out = (rt->output >> 4) & 0xf;
  538. u16 val, reg;
  539. int i;
  540. int extern_input = 1;
  541. if (state->routing.input == rt->input &&
  542. state->routing.output == rt->output)
  543. break;
  544. state->routing = *rt;
  545. /* check if the tuner input is used */
  546. for (i = 0; i < 5; i++) {
  547. if (((rt->input >> (4 + i * 4)) & 0xf) == 0)
  548. extern_input = 0;
  549. }
  550. state->mode = extern_input ? MSP_MODE_EXTERN : MSP_MODE_AM_DETECT;
  551. state->rxsubchans = V4L2_TUNER_SUB_STEREO;
  552. msp_set_scart(client, sc_in, 0);
  553. msp_set_scart(client, sc1_out, 1);
  554. msp_set_scart(client, sc2_out, 2);
  555. msp_set_audmode(client);
  556. reg = (state->opmode == OPMODE_AUTOSELECT) ? 0x30 : 0xbb;
  557. val = msp_read_dem(client, reg);
  558. msp_write_dem(client, reg, (val & ~0x100) | (tuner << 8));
  559. /* wake thread when a new input is chosen */
  560. msp_wake_thread(client);
  561. break;
  562. }
  563. case VIDIOC_G_TUNER:
  564. {
  565. struct v4l2_tuner *vt = arg;
  566. if (state->radio)
  567. break;
  568. if (state->opmode == OPMODE_AUTOSELECT)
  569. msp_detect_stereo(client);
  570. vt->audmode = state->audmode;
  571. vt->rxsubchans = state->rxsubchans;
  572. vt->capability |= V4L2_TUNER_CAP_STEREO |
  573. V4L2_TUNER_CAP_LANG1 | V4L2_TUNER_CAP_LANG2;
  574. break;
  575. }
  576. case VIDIOC_S_TUNER:
  577. {
  578. struct v4l2_tuner *vt = (struct v4l2_tuner *)arg;
  579. if (state->radio) /* TODO: add mono/stereo support for radio */
  580. break;
  581. if (state->audmode == vt->audmode)
  582. break;
  583. state->audmode = vt->audmode;
  584. /* only set audmode */
  585. msp_set_audmode(client);
  586. break;
  587. }
  588. case VIDIOC_INT_I2S_CLOCK_FREQ:
  589. {
  590. u32 *a = (u32 *)arg;
  591. v4l_dbg(1, msp_debug, client, "Setting I2S speed to %d\n", *a);
  592. switch (*a) {
  593. case 1024000:
  594. state->i2s_mode = 0;
  595. break;
  596. case 2048000:
  597. state->i2s_mode = 1;
  598. break;
  599. default:
  600. return -EINVAL;
  601. }
  602. break;
  603. }
  604. case VIDIOC_QUERYCTRL:
  605. {
  606. struct v4l2_queryctrl *qc = arg;
  607. switch (qc->id) {
  608. case V4L2_CID_AUDIO_VOLUME:
  609. case V4L2_CID_AUDIO_MUTE:
  610. return v4l2_ctrl_query_fill_std(qc);
  611. default:
  612. break;
  613. }
  614. if (!state->has_sound_processing)
  615. return -EINVAL;
  616. switch (qc->id) {
  617. case V4L2_CID_AUDIO_LOUDNESS:
  618. case V4L2_CID_AUDIO_BALANCE:
  619. case V4L2_CID_AUDIO_BASS:
  620. case V4L2_CID_AUDIO_TREBLE:
  621. return v4l2_ctrl_query_fill_std(qc);
  622. default:
  623. return -EINVAL;
  624. }
  625. }
  626. case VIDIOC_G_CTRL:
  627. return msp_get_ctrl(client, arg);
  628. case VIDIOC_S_CTRL:
  629. return msp_set_ctrl(client, arg);
  630. case VIDIOC_LOG_STATUS:
  631. {
  632. const char *p;
  633. if (state->opmode == OPMODE_AUTOSELECT)
  634. msp_detect_stereo(client);
  635. v4l_info(client, "%s rev1 = 0x%04x rev2 = 0x%04x\n",
  636. client->name, state->rev1, state->rev2);
  637. v4l_info(client, "Audio: volume %d%s\n",
  638. state->volume, state->muted ? " (muted)" : "");
  639. if (state->has_sound_processing) {
  640. v4l_info(client, "Audio: balance %d bass %d treble %d loudness %s\n",
  641. state->balance, state->bass, state->treble,
  642. state->loudness ? "on" : "off");
  643. }
  644. switch (state->mode) {
  645. case MSP_MODE_AM_DETECT: p = "AM (for carrier detect)"; break;
  646. case MSP_MODE_FM_RADIO: p = "FM Radio"; break;
  647. case MSP_MODE_FM_TERRA: p = "Terrestial FM-mono + FM-stereo"; break;
  648. case MSP_MODE_FM_SAT: p = "Satellite FM-mono"; break;
  649. case MSP_MODE_FM_NICAM1: p = "NICAM/FM (B/G, D/K)"; break;
  650. case MSP_MODE_FM_NICAM2: p = "NICAM/FM (I)"; break;
  651. case MSP_MODE_AM_NICAM: p = "NICAM/AM (L)"; break;
  652. case MSP_MODE_BTSC: p = "BTSC"; break;
  653. case MSP_MODE_EXTERN: p = "External input"; break;
  654. default: p = "unknown"; break;
  655. }
  656. if (state->mode == MSP_MODE_EXTERN) {
  657. v4l_info(client, "Mode: %s\n", p);
  658. } else if (state->opmode == OPMODE_MANUAL) {
  659. v4l_info(client, "Mode: %s (%s%s)\n", p,
  660. (state->rxsubchans & V4L2_TUNER_SUB_STEREO) ? "stereo" : "mono",
  661. (state->rxsubchans & V4L2_TUNER_SUB_LANG2) ? ", dual" : "");
  662. } else {
  663. if (state->opmode == OPMODE_AUTODETECT)
  664. v4l_info(client, "Mode: %s\n", p);
  665. v4l_info(client, "Standard: %s (%s%s)\n",
  666. msp_standard_std_name(state->std),
  667. (state->rxsubchans & V4L2_TUNER_SUB_STEREO) ? "stereo" : "mono",
  668. (state->rxsubchans & V4L2_TUNER_SUB_LANG2) ? ", dual" : "");
  669. }
  670. v4l_info(client, "Audmode: 0x%04x\n", state->audmode);
  671. v4l_info(client, "Routing: 0x%08x (input) 0x%08x (output)\n",
  672. state->routing.input, state->routing.output);
  673. v4l_info(client, "ACB: 0x%04x\n", state->acb);
  674. break;
  675. }
  676. case VIDIOC_G_CHIP_IDENT:
  677. return v4l2_chip_ident_i2c_client(client, arg, state->ident, (state->rev1 << 16) | state->rev2);
  678. default:
  679. /* unknown */
  680. return -EINVAL;
  681. }
  682. return 0;
  683. }
  684. static int msp_suspend(struct i2c_client *client, pm_message_t state)
  685. {
  686. v4l_dbg(1, msp_debug, client, "suspend\n");
  687. msp_reset(client);
  688. return 0;
  689. }
  690. static int msp_resume(struct i2c_client *client)
  691. {
  692. v4l_dbg(1, msp_debug, client, "resume\n");
  693. msp_wake_thread(client);
  694. return 0;
  695. }
  696. /* ----------------------------------------------------------------------- */
  697. static struct i2c_driver i2c_driver;
  698. static int msp_attach(struct i2c_adapter *adapter, int address, int kind)
  699. {
  700. struct i2c_client *client;
  701. struct msp_state *state;
  702. int (*thread_func)(void *data) = NULL;
  703. int msp_hard;
  704. int msp_family;
  705. int msp_revision;
  706. int msp_product, msp_prod_hi, msp_prod_lo;
  707. int msp_rom;
  708. client = kzalloc(sizeof(*client), GFP_KERNEL);
  709. if (!client)
  710. return -ENOMEM;
  711. client->addr = address;
  712. client->adapter = adapter;
  713. client->driver = &i2c_driver;
  714. snprintf(client->name, sizeof(client->name) - 1, "msp3400");
  715. if (msp_reset(client) == -1) {
  716. v4l_dbg(1, msp_debug, client, "msp3400 not found\n");
  717. kfree(client);
  718. return 0;
  719. }
  720. state = kzalloc(sizeof(*state), GFP_KERNEL);
  721. if (!state) {
  722. kfree(client);
  723. return -ENOMEM;
  724. }
  725. i2c_set_clientdata(client, state);
  726. state->v4l2_std = V4L2_STD_NTSC;
  727. state->audmode = V4L2_TUNER_MODE_STEREO;
  728. state->volume = 58880; /* 0db gain */
  729. state->balance = 32768; /* 0db gain */
  730. state->bass = 32768;
  731. state->treble = 32768;
  732. state->loudness = 0;
  733. state->input = -1;
  734. state->muted = 0;
  735. state->i2s_mode = 0;
  736. init_waitqueue_head(&state->wq);
  737. /* These are the reset input/output positions */
  738. state->routing.input = MSP_INPUT_DEFAULT;
  739. state->routing.output = MSP_OUTPUT_DEFAULT;
  740. state->rev1 = msp_read_dsp(client, 0x1e);
  741. if (state->rev1 != -1)
  742. state->rev2 = msp_read_dsp(client, 0x1f);
  743. v4l_dbg(1, msp_debug, client, "rev1=0x%04x, rev2=0x%04x\n", state->rev1, state->rev2);
  744. if (state->rev1 == -1 || (state->rev1 == 0 && state->rev2 == 0)) {
  745. v4l_dbg(1, msp_debug, client, "not an msp3400 (cannot read chip version)\n");
  746. kfree(state);
  747. kfree(client);
  748. return 0;
  749. }
  750. msp_set_audio(client);
  751. msp_family = ((state->rev1 >> 4) & 0x0f) + 3;
  752. msp_product = (state->rev2 >> 8) & 0xff;
  753. msp_prod_hi = msp_product / 10;
  754. msp_prod_lo = msp_product % 10;
  755. msp_revision = (state->rev1 & 0x0f) + '@';
  756. msp_hard = ((state->rev1 >> 8) & 0xff) + '@';
  757. msp_rom = state->rev2 & 0x1f;
  758. snprintf(client->name, sizeof(client->name), "MSP%d4%02d%c-%c%d",
  759. msp_family, msp_product,
  760. msp_revision, msp_hard, msp_rom);
  761. /* Rev B=2, C=3, D=4, G=7 */
  762. state->ident = msp_family * 10000 + 4000 + msp_product * 10 + msp_revision - '@';
  763. /* Has NICAM support: all mspx41x and mspx45x products have NICAM */
  764. state->has_nicam = msp_prod_hi == 1 || msp_prod_hi == 5;
  765. /* Has radio support: was added with revision G */
  766. state->has_radio = msp_revision >= 'G';
  767. /* Has headphones output: not for stripped down products */
  768. state->has_headphones = msp_prod_lo < 5;
  769. /* Has scart2 input: not in stripped down products of the '3' family */
  770. state->has_scart2 = msp_family >= 4 || msp_prod_lo < 7;
  771. /* Has scart3 input: not in stripped down products of the '3' family */
  772. state->has_scart3 = msp_family >= 4 || msp_prod_lo < 5;
  773. /* Has scart4 input: not in pre D revisions, not in stripped D revs */
  774. state->has_scart4 = msp_family >= 4 || (msp_revision >= 'D' && msp_prod_lo < 5);
  775. /* Has scart2 output: not in stripped down products of the '3' family */
  776. state->has_scart2_out = msp_family >= 4 || msp_prod_lo < 5;
  777. /* Has scart2 a volume control? Not in pre-D revisions. */
  778. state->has_scart2_out_volume = msp_revision > 'C' && state->has_scart2_out;
  779. /* Has a configurable i2s out? */
  780. state->has_i2s_conf = msp_revision >= 'G' && msp_prod_lo < 7;
  781. /* Has subwoofer output: not in pre-D revs and not in stripped down products */
  782. state->has_subwoofer = msp_revision >= 'D' && msp_prod_lo < 5;
  783. /* Has soundprocessing (bass/treble/balance/loudness/equalizer): not in
  784. stripped down products */
  785. state->has_sound_processing = msp_prod_lo < 7;
  786. /* Has Virtual Dolby Surround: only in msp34x1 */
  787. state->has_virtual_dolby_surround = msp_revision == 'G' && msp_prod_lo == 1;
  788. /* Has Virtual Dolby Surround & Dolby Pro Logic: only in msp34x2 */
  789. state->has_dolby_pro_logic = msp_revision == 'G' && msp_prod_lo == 2;
  790. /* The msp343xG supports BTSC only and cannot do Automatic Standard Detection. */
  791. state->force_btsc = msp_family == 3 && msp_revision == 'G' && msp_prod_hi == 3;
  792. state->opmode = opmode;
  793. if (state->opmode == OPMODE_AUTO) {
  794. /* MSP revision G and up have both autodetect and autoselect */
  795. if (msp_revision >= 'G')
  796. state->opmode = OPMODE_AUTOSELECT;
  797. /* MSP revision D and up have autodetect */
  798. else if (msp_revision >= 'D')
  799. state->opmode = OPMODE_AUTODETECT;
  800. else
  801. state->opmode = OPMODE_MANUAL;
  802. }
  803. /* hello world :-) */
  804. v4l_info(client, "%s found @ 0x%x (%s)\n", client->name, address << 1, adapter->name);
  805. v4l_info(client, "%s ", client->name);
  806. if (state->has_nicam && state->has_radio)
  807. printk("supports nicam and radio, ");
  808. else if (state->has_nicam)
  809. printk("supports nicam, ");
  810. else if (state->has_radio)
  811. printk("supports radio, ");
  812. printk("mode is ");
  813. /* version-specific initialization */
  814. switch (state->opmode) {
  815. case OPMODE_MANUAL:
  816. printk("manual");
  817. thread_func = msp3400c_thread;
  818. break;
  819. case OPMODE_AUTODETECT:
  820. printk("autodetect");
  821. thread_func = msp3410d_thread;
  822. break;
  823. case OPMODE_AUTOSELECT:
  824. printk("autodetect and autoselect");
  825. thread_func = msp34xxg_thread;
  826. break;
  827. }
  828. printk("\n");
  829. /* startup control thread if needed */
  830. if (thread_func) {
  831. state->kthread = kthread_run(thread_func, client, "msp34xx");
  832. if (IS_ERR(state->kthread))
  833. v4l_warn(client, "kernel_thread() failed\n");
  834. msp_wake_thread(client);
  835. }
  836. /* done */
  837. i2c_attach_client(client);
  838. return 0;
  839. }
  840. static int msp_probe(struct i2c_adapter *adapter)
  841. {
  842. if (adapter->class & I2C_CLASS_TV_ANALOG)
  843. return i2c_probe(adapter, &addr_data, msp_attach);
  844. return 0;
  845. }
  846. static int msp_detach(struct i2c_client *client)
  847. {
  848. struct msp_state *state = i2c_get_clientdata(client);
  849. int err;
  850. /* shutdown control thread */
  851. if (state->kthread) {
  852. state->restart = 1;
  853. kthread_stop(state->kthread);
  854. }
  855. msp_reset(client);
  856. err = i2c_detach_client(client);
  857. if (err) {
  858. return err;
  859. }
  860. kfree(state);
  861. kfree(client);
  862. return 0;
  863. }
  864. /* ----------------------------------------------------------------------- */
  865. /* i2c implementation */
  866. static struct i2c_driver i2c_driver = {
  867. .id = I2C_DRIVERID_MSP3400,
  868. .attach_adapter = msp_probe,
  869. .detach_client = msp_detach,
  870. .suspend = msp_suspend,
  871. .resume = msp_resume,
  872. .command = msp_command,
  873. .driver = {
  874. .name = "msp3400",
  875. },
  876. };
  877. static int __init msp3400_init_module(void)
  878. {
  879. return i2c_add_driver(&i2c_driver);
  880. }
  881. static void __exit msp3400_cleanup_module(void)
  882. {
  883. i2c_del_driver(&i2c_driver);
  884. }
  885. module_init(msp3400_init_module);
  886. module_exit(msp3400_cleanup_module);
  887. /*
  888. * Overrides for Emacs so that we follow Linus's tabbing style.
  889. * ---------------------------------------------------------------------------
  890. * Local variables:
  891. * c-basic-offset: 8
  892. * End:
  893. */