2 * Programming the mspx4xx sound processor family
4 * (c) 1997-2001 Gerd Knorr <kraxel@bytesex.org>
6 * what works and what doesn't:
9 * Support for Hauppauge cards added (decoding handled by tuner) added by
10 * Frederic Crozat <fcrozat@mail.dotcom.fr>
13 * should work. The stereo modes are backward compatible to FM-mono,
14 * therefore FM-Mono should be allways available.
16 * FM-Stereo (B/G, used in germany)
17 * should work, with autodetect
19 * FM-Stereo (satellite)
20 * should work, no autodetect (i.e. default is mono, but you can
21 * switch to stereo -- untested)
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>
28 * - better SAT support
30 * 980623 Thomas Sailer (sailer@ife.ee.ethz.ch)
31 * using soundcore instead of OSS
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.
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.
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
50 #include <linux/kernel.h>
51 #include <linux/module.h>
52 #include <linux/slab.h>
53 #include <linux/i2c.h>
54 #include <linux/kthread.h>
55 #include <linux/freezer.h>
56 #include <linux/videodev2.h>
57 #include <media/v4l2-device.h>
58 #include <media/v4l2-ioctl.h>
59 #include <media/v4l2-i2c-drv.h>
60 #include <media/msp3400.h>
61 #include <media/tvaudio.h>
62 #include "msp3400-driver.h"
64 /* ---------------------------------------------------------------------- */
66 MODULE_DESCRIPTION("device driver for msp34xx TV sound processor");
67 MODULE_AUTHOR("Gerd Knorr");
68 MODULE_LICENSE("GPL");
70 /* module parameters */
71 static int opmode = OPMODE_AUTO;
72 int msp_debug; /* msp_debug output */
73 int msp_once; /* no continous stereo monitoring */
74 int msp_amsound; /* hard-wire AM sound at 6.5 Hz (france),
75 the autoscan seems work well only with FM... */
76 int msp_standard = 1; /* Override auto detect of audio msp_standard,
80 int msp_stereo_thresh = 0x190; /* a2 threshold for stereo/bilingual
81 (msp34xxg only) 0x00a0-0x03c0 */
84 module_param(opmode, int, 0444);
87 module_param_named(once, msp_once, bool, 0644);
88 module_param_named(debug, msp_debug, int, 0644);
89 module_param_named(stereo_threshold, msp_stereo_thresh, int, 0644);
90 module_param_named(standard, msp_standard, int, 0644);
91 module_param_named(amsound, msp_amsound, bool, 0644);
92 module_param_named(dolby, msp_dolby, bool, 0644);
94 MODULE_PARM_DESC(opmode, "Forces a MSP3400 opmode. 0=Manual, 1=Autodetect, 2=Autodetect and autoselect");
95 MODULE_PARM_DESC(once, "No continuous stereo monitoring");
96 MODULE_PARM_DESC(debug, "Enable debug messages [0-3]");
97 MODULE_PARM_DESC(stereo_threshold, "Sets signal threshold to activate stereo");
98 MODULE_PARM_DESC(standard, "Specify audio standard: 32 = NTSC, 64 = radio, Default: Autodetect");
99 MODULE_PARM_DESC(amsound, "Hardwire AM sound at 6.5Hz (France), FM can autoscan");
100 MODULE_PARM_DESC(dolby, "Activates Dolby processsing");
102 /* ---------------------------------------------------------------------- */
104 /* control subaddress */
105 #define I2C_MSP_CONTROL 0x00
106 /* demodulator unit subaddress */
107 #define I2C_MSP_DEM 0x10
108 /* DSP unit subaddress */
109 #define I2C_MSP_DSP 0x12
112 /* ----------------------------------------------------------------------- */
113 /* functions for talking to the MSP3400C Sound processor */
115 int msp_reset(struct i2c_client *client)
117 /* reset and read revision code */
118 static u8 reset_off[3] = { I2C_MSP_CONTROL, 0x80, 0x00 };
119 static u8 reset_on[3] = { I2C_MSP_CONTROL, 0x00, 0x00 };
120 static u8 write[3] = { I2C_MSP_DSP + 1, 0x00, 0x1e };
122 struct i2c_msg reset[2] = {
123 { client->addr, I2C_M_IGNORE_NAK, 3, reset_off },
124 { client->addr, I2C_M_IGNORE_NAK, 3, reset_on },
126 struct i2c_msg test[2] = {
127 { client->addr, 0, 3, write },
128 { client->addr, I2C_M_RD, 2, read },
131 v4l_dbg(3, msp_debug, client, "msp_reset\n");
132 if (i2c_transfer(client->adapter, &reset[0], 1) != 1 ||
133 i2c_transfer(client->adapter, &reset[1], 1) != 1 ||
134 i2c_transfer(client->adapter, test, 2) != 2) {
135 v4l_err(client, "chip reset failed\n");
141 static int msp_read(struct i2c_client *client, int dev, int addr)
146 struct i2c_msg msgs[2] = {
147 { client->addr, 0, 3, write },
148 { client->addr, I2C_M_RD, 2, read }
152 write[1] = addr >> 8;
153 write[2] = addr & 0xff;
155 for (err = 0; err < 3; err++) {
156 if (i2c_transfer(client->adapter, msgs, 2) == 2)
158 v4l_warn(client, "I/O error #%d (read 0x%02x/0x%02x)\n", err,
160 schedule_timeout_interruptible(msecs_to_jiffies(10));
163 v4l_warn(client, "resetting chip, sound will go off.\n");
167 retval = read[0] << 8 | read[1];
168 v4l_dbg(3, msp_debug, client, "msp_read(0x%x, 0x%x): 0x%x\n",
173 int msp_read_dem(struct i2c_client *client, int addr)
175 return msp_read(client, I2C_MSP_DEM, addr);
178 int msp_read_dsp(struct i2c_client *client, int addr)
180 return msp_read(client, I2C_MSP_DSP, addr);
183 static int msp_write(struct i2c_client *client, int dev, int addr, int val)
189 buffer[1] = addr >> 8;
190 buffer[2] = addr & 0xff;
191 buffer[3] = val >> 8;
192 buffer[4] = val & 0xff;
194 v4l_dbg(3, msp_debug, client, "msp_write(0x%x, 0x%x, 0x%x)\n",
196 for (err = 0; err < 3; err++) {
197 if (i2c_master_send(client, buffer, 5) == 5)
199 v4l_warn(client, "I/O error #%d (write 0x%02x/0x%02x)\n", err,
201 schedule_timeout_interruptible(msecs_to_jiffies(10));
204 v4l_warn(client, "resetting chip, sound will go off.\n");
211 int msp_write_dem(struct i2c_client *client, int addr, int val)
213 return msp_write(client, I2C_MSP_DEM, addr, val);
216 int msp_write_dsp(struct i2c_client *client, int addr, int val)
218 return msp_write(client, I2C_MSP_DSP, addr, val);
221 /* ----------------------------------------------------------------------- *
222 * bits 9 8 5 - SCART DSP input Select:
223 * 0 0 0 - SCART 1 to DSP input (reset position)
224 * 0 1 0 - MONO to DSP input
225 * 1 0 0 - SCART 2 to DSP input
226 * 1 1 1 - Mute DSP input
228 * bits 11 10 6 - SCART 1 Output Select:
229 * 0 0 0 - undefined (reset position)
230 * 0 1 0 - SCART 2 Input to SCART 1 Output (for devices with 2 SCARTS)
231 * 1 0 0 - MONO input to SCART 1 Output
232 * 1 1 0 - SCART 1 DA to SCART 1 Output
233 * 0 0 1 - SCART 2 DA to SCART 1 Output
234 * 0 1 1 - SCART 1 Input to SCART 1 Output
235 * 1 1 1 - Mute SCART 1 Output
237 * bits 13 12 7 - SCART 2 Output Select (for devices with 2 Output SCART):
238 * 0 0 0 - SCART 1 DA to SCART 2 Output (reset position)
239 * 0 1 0 - SCART 1 Input to SCART 2 Output
240 * 1 0 0 - MONO input to SCART 2 Output
241 * 0 0 1 - SCART 2 DA to SCART 2 Output
242 * 0 1 1 - SCART 2 Input to SCART 2 Output
243 * 1 1 0 - Mute SCART 2 Output
245 * Bits 4 to 0 should be zero.
246 * ----------------------------------------------------------------------- */
248 static int scarts[3][9] = {
249 /* MASK IN1 IN2 IN3 IN4 IN1_DA IN2_DA MONO MUTE */
250 /* SCART DSP Input select */
251 { 0x0320, 0x0000, 0x0200, 0x0300, 0x0020, -1, -1, 0x0100, 0x0320 },
252 /* SCART1 Output select */
253 { 0x0c40, 0x0440, 0x0400, 0x0000, 0x0840, 0x0c00, 0x0040, 0x0800, 0x0c40 },
254 /* SCART2 Output select */
255 { 0x3080, 0x1000, 0x1080, 0x2080, 0x3080, 0x0000, 0x0080, 0x2000, 0x3000 },
258 static char *scart_names[] = {
259 "in1", "in2", "in3", "in4", "in1 da", "in2 da", "mono", "mute"
262 void msp_set_scart(struct i2c_client *client, int in, int out)
264 struct msp_state *state = to_state(i2c_get_clientdata(client));
266 state->in_scart = in;
268 if (in >= 0 && in <= 7 && out >= 0 && out <= 2) {
269 if (-1 == scarts[out][in + 1])
272 state->acb &= ~scarts[out][0];
273 state->acb |= scarts[out][in + 1];
275 state->acb = 0xf60; /* Mute Input and SCART 1 Output */
277 v4l_dbg(1, msp_debug, client, "scart switch: %s => %d (ACB=0x%04x)\n",
278 scart_names[in], out, state->acb);
279 msp_write_dsp(client, 0x13, state->acb);
281 /* Sets I2S speed 0 = 1.024 Mbps, 1 = 2.048 Mbps */
282 if (state->has_i2s_conf)
283 msp_write_dem(client, 0x40, state->i2s_mode);
286 void msp_set_audio(struct i2c_client *client)
288 struct msp_state *state = to_state(i2c_get_clientdata(client));
289 int bal = 0, bass, treble, loudness;
291 int reallymuted = state->muted | state->scan_in_progress;
294 val = (state->volume * 0x7f / 65535) << 8;
296 v4l_dbg(1, msp_debug, client, "mute=%s scanning=%s volume=%d\n",
297 state->muted ? "on" : "off",
298 state->scan_in_progress ? "yes" : "no",
301 msp_write_dsp(client, 0x0000, val);
302 msp_write_dsp(client, 0x0007, reallymuted ? 0x1 : (val | 0x1));
303 if (state->has_scart2_out_volume)
304 msp_write_dsp(client, 0x0040, reallymuted ? 0x1 : (val | 0x1));
305 if (state->has_headphones)
306 msp_write_dsp(client, 0x0006, val);
307 if (!state->has_sound_processing)
311 bal = (u8)((state->balance / 256) - 128);
312 bass = ((state->bass - 32768) * 0x60 / 65535) << 8;
313 treble = ((state->treble - 32768) * 0x60 / 65535) << 8;
314 loudness = state->loudness ? ((5 * 4) << 8) : 0;
316 v4l_dbg(1, msp_debug, client, "balance=%d bass=%d treble=%d loudness=%d\n",
317 state->balance, state->bass, state->treble, state->loudness);
319 msp_write_dsp(client, 0x0001, bal << 8);
320 msp_write_dsp(client, 0x0002, bass);
321 msp_write_dsp(client, 0x0003, treble);
322 msp_write_dsp(client, 0x0004, loudness);
323 if (!state->has_headphones)
325 msp_write_dsp(client, 0x0030, bal << 8);
326 msp_write_dsp(client, 0x0031, bass);
327 msp_write_dsp(client, 0x0032, treble);
328 msp_write_dsp(client, 0x0033, loudness);
331 /* ------------------------------------------------------------------------ */
333 static void msp_wake_thread(struct i2c_client *client)
335 struct msp_state *state = to_state(i2c_get_clientdata(client));
337 if (NULL == state->kthread)
339 state->watch_stereo = 0;
341 wake_up_interruptible(&state->wq);
344 int msp_sleep(struct msp_state *state, int timeout)
346 DECLARE_WAITQUEUE(wait, current);
348 add_wait_queue(&state->wq, &wait);
349 if (!kthread_should_stop()) {
351 set_current_state(TASK_INTERRUPTIBLE);
354 schedule_timeout_interruptible
355 (msecs_to_jiffies(timeout));
359 remove_wait_queue(&state->wq, &wait);
361 return state->restart;
364 /* ------------------------------------------------------------------------ */
366 static int msp_g_ctrl(struct v4l2_subdev *sd, struct v4l2_control *ctrl)
368 struct msp_state *state = to_state(sd);
371 case V4L2_CID_AUDIO_VOLUME:
372 ctrl->value = state->volume;
375 case V4L2_CID_AUDIO_MUTE:
376 ctrl->value = state->muted;
379 case V4L2_CID_AUDIO_BALANCE:
380 if (!state->has_sound_processing)
382 ctrl->value = state->balance;
385 case V4L2_CID_AUDIO_BASS:
386 if (!state->has_sound_processing)
388 ctrl->value = state->bass;
391 case V4L2_CID_AUDIO_TREBLE:
392 if (!state->has_sound_processing)
394 ctrl->value = state->treble;
397 case V4L2_CID_AUDIO_LOUDNESS:
398 if (!state->has_sound_processing)
400 ctrl->value = state->loudness;
409 static int msp_s_ctrl(struct v4l2_subdev *sd, struct v4l2_control *ctrl)
411 struct msp_state *state = to_state(sd);
412 struct i2c_client *client = v4l2_get_subdevdata(sd);
415 case V4L2_CID_AUDIO_VOLUME:
416 state->volume = ctrl->value;
417 if (state->volume == 0)
418 state->balance = 32768;
421 case V4L2_CID_AUDIO_MUTE:
422 if (ctrl->value < 0 || ctrl->value >= 2)
424 state->muted = ctrl->value;
427 case V4L2_CID_AUDIO_BASS:
428 if (!state->has_sound_processing)
430 state->bass = ctrl->value;
433 case V4L2_CID_AUDIO_TREBLE:
434 if (!state->has_sound_processing)
436 state->treble = ctrl->value;
439 case V4L2_CID_AUDIO_LOUDNESS:
440 if (!state->has_sound_processing)
442 state->loudness = ctrl->value;
445 case V4L2_CID_AUDIO_BALANCE:
446 if (!state->has_sound_processing)
448 state->balance = ctrl->value;
454 msp_set_audio(client);
458 /* --- v4l2 ioctls --- */
459 static int msp_s_radio(struct v4l2_subdev *sd)
461 struct msp_state *state = to_state(sd);
462 struct i2c_client *client = v4l2_get_subdevdata(sd);
467 v4l_dbg(1, msp_debug, client, "switching to radio mode\n");
468 state->watch_stereo = 0;
469 switch (state->opmode) {
471 /* set msp3400 to FM radio mode */
472 msp3400c_set_mode(client, MSP_MODE_FM_RADIO);
473 msp3400c_set_carrier(client, MSP_CARRIER(10.7),
475 msp_set_audio(client);
477 case OPMODE_AUTODETECT:
478 case OPMODE_AUTOSELECT:
479 /* the thread will do for us */
480 msp_wake_thread(client);
486 static int msp_s_frequency(struct v4l2_subdev *sd, struct v4l2_frequency *freq)
488 struct i2c_client *client = v4l2_get_subdevdata(sd);
490 /* new channel -- kick audio carrier scan */
491 msp_wake_thread(client);
495 static int msp_s_std(struct v4l2_subdev *sd, v4l2_std_id id)
497 struct msp_state *state = to_state(sd);
498 struct i2c_client *client = v4l2_get_subdevdata(sd);
499 int update = state->radio || state->v4l2_std != id;
501 state->v4l2_std = id;
504 msp_wake_thread(client);
508 static int msp_s_routing(struct v4l2_subdev *sd,
509 u32 input, u32 output, u32 config)
511 struct msp_state *state = to_state(sd);
512 struct i2c_client *client = v4l2_get_subdevdata(sd);
513 int tuner = (input >> 3) & 1;
514 int sc_in = input & 0x7;
515 int sc1_out = output & 0xf;
516 int sc2_out = (output >> 4) & 0xf;
519 int extern_input = 1;
521 if (state->route_in == input && state->route_out == output)
523 state->route_in = input;
524 state->route_out = output;
525 /* check if the tuner input is used */
526 for (i = 0; i < 5; i++) {
527 if (((input >> (4 + i * 4)) & 0xf) == 0)
530 state->mode = extern_input ? MSP_MODE_EXTERN : MSP_MODE_AM_DETECT;
531 state->rxsubchans = V4L2_TUNER_SUB_STEREO;
532 msp_set_scart(client, sc_in, 0);
533 msp_set_scart(client, sc1_out, 1);
534 msp_set_scart(client, sc2_out, 2);
535 msp_set_audmode(client);
536 reg = (state->opmode == OPMODE_AUTOSELECT) ? 0x30 : 0xbb;
537 val = msp_read_dem(client, reg);
538 msp_write_dem(client, reg, (val & ~0x100) | (tuner << 8));
539 /* wake thread when a new input is chosen */
540 msp_wake_thread(client);
544 static int msp_g_tuner(struct v4l2_subdev *sd, struct v4l2_tuner *vt)
546 struct msp_state *state = to_state(sd);
547 struct i2c_client *client = v4l2_get_subdevdata(sd);
551 if (state->opmode == OPMODE_AUTOSELECT)
552 msp_detect_stereo(client);
553 vt->audmode = state->audmode;
554 vt->rxsubchans = state->rxsubchans;
555 vt->capability |= V4L2_TUNER_CAP_STEREO |
556 V4L2_TUNER_CAP_LANG1 | V4L2_TUNER_CAP_LANG2;
560 static int msp_s_tuner(struct v4l2_subdev *sd, struct v4l2_tuner *vt)
562 struct msp_state *state = to_state(sd);
563 struct i2c_client *client = v4l2_get_subdevdata(sd);
565 if (state->radio) /* TODO: add mono/stereo support for radio */
567 if (state->audmode == vt->audmode)
569 state->audmode = vt->audmode;
570 /* only set audmode */
571 msp_set_audmode(client);
575 static int msp_s_i2s_clock_freq(struct v4l2_subdev *sd, u32 freq)
577 struct msp_state *state = to_state(sd);
578 struct i2c_client *client = v4l2_get_subdevdata(sd);
580 v4l_dbg(1, msp_debug, client, "Setting I2S speed to %d\n", freq);
595 static int msp_queryctrl(struct v4l2_subdev *sd, struct v4l2_queryctrl *qc)
597 struct msp_state *state = to_state(sd);
600 case V4L2_CID_AUDIO_VOLUME:
601 return v4l2_ctrl_query_fill(qc, 0, 65535, 65535 / 100, 58880);
602 case V4L2_CID_AUDIO_MUTE:
603 return v4l2_ctrl_query_fill(qc, 0, 1, 1, 0);
607 if (!state->has_sound_processing)
610 case V4L2_CID_AUDIO_LOUDNESS:
611 return v4l2_ctrl_query_fill(qc, 0, 1, 1, 0);
612 case V4L2_CID_AUDIO_BALANCE:
613 case V4L2_CID_AUDIO_BASS:
614 case V4L2_CID_AUDIO_TREBLE:
615 return v4l2_ctrl_query_fill(qc, 0, 65535, 65535 / 100, 32768);
622 static int msp_g_chip_ident(struct v4l2_subdev *sd, struct v4l2_dbg_chip_ident *chip)
624 struct msp_state *state = to_state(sd);
625 struct i2c_client *client = v4l2_get_subdevdata(sd);
627 return v4l2_chip_ident_i2c_client(client, chip, state->ident,
628 (state->rev1 << 16) | state->rev2);
631 static int msp_log_status(struct v4l2_subdev *sd)
633 struct msp_state *state = to_state(sd);
634 struct i2c_client *client = v4l2_get_subdevdata(sd);
637 if (state->opmode == OPMODE_AUTOSELECT)
638 msp_detect_stereo(client);
639 v4l_info(client, "%s rev1 = 0x%04x rev2 = 0x%04x\n",
640 client->name, state->rev1, state->rev2);
641 v4l_info(client, "Audio: volume %d%s\n",
642 state->volume, state->muted ? " (muted)" : "");
643 if (state->has_sound_processing) {
644 v4l_info(client, "Audio: balance %d bass %d treble %d loudness %s\n",
645 state->balance, state->bass,
647 state->loudness ? "on" : "off");
649 switch (state->mode) {
650 case MSP_MODE_AM_DETECT: p = "AM (for carrier detect)"; break;
651 case MSP_MODE_FM_RADIO: p = "FM Radio"; break;
652 case MSP_MODE_FM_TERRA: p = "Terrestial FM-mono/stereo"; break;
653 case MSP_MODE_FM_SAT: p = "Satellite FM-mono"; break;
654 case MSP_MODE_FM_NICAM1: p = "NICAM/FM (B/G, D/K)"; break;
655 case MSP_MODE_FM_NICAM2: p = "NICAM/FM (I)"; break;
656 case MSP_MODE_AM_NICAM: p = "NICAM/AM (L)"; break;
657 case MSP_MODE_BTSC: p = "BTSC"; break;
658 case MSP_MODE_EXTERN: p = "External input"; break;
659 default: p = "unknown"; break;
661 if (state->mode == MSP_MODE_EXTERN) {
662 v4l_info(client, "Mode: %s\n", p);
663 } else if (state->opmode == OPMODE_MANUAL) {
664 v4l_info(client, "Mode: %s (%s%s)\n", p,
665 (state->rxsubchans & V4L2_TUNER_SUB_STEREO) ? "stereo" : "mono",
666 (state->rxsubchans & V4L2_TUNER_SUB_LANG2) ? ", dual" : "");
668 if (state->opmode == OPMODE_AUTODETECT)
669 v4l_info(client, "Mode: %s\n", p);
670 v4l_info(client, "Standard: %s (%s%s)\n",
671 msp_standard_std_name(state->std),
672 (state->rxsubchans & V4L2_TUNER_SUB_STEREO) ? "stereo" : "mono",
673 (state->rxsubchans & V4L2_TUNER_SUB_LANG2) ? ", dual" : "");
675 v4l_info(client, "Audmode: 0x%04x\n", state->audmode);
676 v4l_info(client, "Routing: 0x%08x (input) 0x%08x (output)\n",
677 state->route_in, state->route_out);
678 v4l_info(client, "ACB: 0x%04x\n", state->acb);
682 static int msp_suspend(struct i2c_client *client, pm_message_t state)
684 v4l_dbg(1, msp_debug, client, "suspend\n");
689 static int msp_resume(struct i2c_client *client)
691 v4l_dbg(1, msp_debug, client, "resume\n");
692 msp_wake_thread(client);
696 /* ----------------------------------------------------------------------- */
698 static const struct v4l2_subdev_core_ops msp_core_ops = {
699 .log_status = msp_log_status,
700 .g_chip_ident = msp_g_chip_ident,
701 .g_ctrl = msp_g_ctrl,
702 .s_ctrl = msp_s_ctrl,
703 .queryctrl = msp_queryctrl,
707 static const struct v4l2_subdev_tuner_ops msp_tuner_ops = {
708 .s_frequency = msp_s_frequency,
709 .g_tuner = msp_g_tuner,
710 .s_tuner = msp_s_tuner,
711 .s_radio = msp_s_radio,
714 static const struct v4l2_subdev_audio_ops msp_audio_ops = {
715 .s_routing = msp_s_routing,
716 .s_i2s_clock_freq = msp_s_i2s_clock_freq,
719 static const struct v4l2_subdev_ops msp_ops = {
720 .core = &msp_core_ops,
721 .tuner = &msp_tuner_ops,
722 .audio = &msp_audio_ops,
725 /* ----------------------------------------------------------------------- */
727 static int msp_probe(struct i2c_client *client, const struct i2c_device_id *id)
729 struct msp_state *state;
730 struct v4l2_subdev *sd;
731 int (*thread_func)(void *data) = NULL;
735 int msp_product, msp_prod_hi, msp_prod_lo;
739 strlcpy(client->name, "msp3400", sizeof(client->name));
741 if (msp_reset(client) == -1) {
742 v4l_dbg(1, msp_debug, client, "msp3400 not found\n");
746 state = kzalloc(sizeof(*state), GFP_KERNEL);
751 v4l2_i2c_subdev_init(sd, client, &msp_ops);
753 state->v4l2_std = V4L2_STD_NTSC;
754 state->audmode = V4L2_TUNER_MODE_STEREO;
755 state->volume = 58880; /* 0db gain */
756 state->balance = 32768; /* 0db gain */
758 state->treble = 32768;
763 init_waitqueue_head(&state->wq);
764 /* These are the reset input/output positions */
765 state->route_in = MSP_INPUT_DEFAULT;
766 state->route_out = MSP_OUTPUT_DEFAULT;
768 state->rev1 = msp_read_dsp(client, 0x1e);
769 if (state->rev1 != -1)
770 state->rev2 = msp_read_dsp(client, 0x1f);
771 v4l_dbg(1, msp_debug, client, "rev1=0x%04x, rev2=0x%04x\n",
772 state->rev1, state->rev2);
773 if (state->rev1 == -1 || (state->rev1 == 0 && state->rev2 == 0)) {
774 v4l_dbg(1, msp_debug, client,
775 "not an msp3400 (cannot read chip version)\n");
780 msp_set_audio(client);
782 msp_family = ((state->rev1 >> 4) & 0x0f) + 3;
783 msp_product = (state->rev2 >> 8) & 0xff;
784 msp_prod_hi = msp_product / 10;
785 msp_prod_lo = msp_product % 10;
786 msp_revision = (state->rev1 & 0x0f) + '@';
787 msp_hard = ((state->rev1 >> 8) & 0xff) + '@';
788 msp_rom = state->rev2 & 0x1f;
789 /* Rev B=2, C=3, D=4, G=7 */
790 state->ident = msp_family * 10000 + 4000 + msp_product * 10 +
793 /* Has NICAM support: all mspx41x and mspx45x products have NICAM */
795 msp_prod_hi == 1 || msp_prod_hi == 5;
796 /* Has radio support: was added with revision G */
799 /* Has headphones output: not for stripped down products */
800 state->has_headphones =
802 /* Has scart2 input: not in stripped down products of the '3' family */
804 msp_family >= 4 || msp_prod_lo < 7;
805 /* Has scart3 input: not in stripped down products of the '3' family */
807 msp_family >= 4 || msp_prod_lo < 5;
808 /* Has scart4 input: not in pre D revisions, not in stripped D revs */
810 msp_family >= 4 || (msp_revision >= 'D' && msp_prod_lo < 5);
811 /* Has scart2 output: not in stripped down products of
813 state->has_scart2_out =
814 msp_family >= 4 || msp_prod_lo < 5;
815 /* Has scart2 a volume control? Not in pre-D revisions. */
816 state->has_scart2_out_volume =
817 msp_revision > 'C' && state->has_scart2_out;
818 /* Has a configurable i2s out? */
819 state->has_i2s_conf =
820 msp_revision >= 'G' && msp_prod_lo < 7;
821 /* Has subwoofer output: not in pre-D revs and not in stripped down
823 state->has_subwoofer =
824 msp_revision >= 'D' && msp_prod_lo < 5;
825 /* Has soundprocessing (bass/treble/balance/loudness/equalizer):
826 * not in stripped down products */
827 state->has_sound_processing =
829 /* Has Virtual Dolby Surround: only in msp34x1 */
830 state->has_virtual_dolby_surround =
831 msp_revision == 'G' && msp_prod_lo == 1;
832 /* Has Virtual Dolby Surround & Dolby Pro Logic: only in msp34x2 */
833 state->has_dolby_pro_logic =
834 msp_revision == 'G' && msp_prod_lo == 2;
835 /* The msp343xG supports BTSC only and cannot do Automatic Standard
838 msp_family == 3 && msp_revision == 'G' && msp_prod_hi == 3;
840 state->opmode = opmode;
841 if (state->opmode == OPMODE_AUTO) {
842 /* MSP revision G and up have both autodetect and autoselect */
843 if (msp_revision >= 'G')
844 state->opmode = OPMODE_AUTOSELECT;
845 /* MSP revision D and up have autodetect */
846 else if (msp_revision >= 'D')
847 state->opmode = OPMODE_AUTODETECT;
849 state->opmode = OPMODE_MANUAL;
852 /* hello world :-) */
853 v4l_info(client, "MSP%d4%02d%c-%c%d found @ 0x%x (%s)\n",
854 msp_family, msp_product,
855 msp_revision, msp_hard, msp_rom,
856 client->addr << 1, client->adapter->name);
857 v4l_info(client, "%s ", client->name);
858 if (state->has_nicam && state->has_radio)
859 printk(KERN_CONT "supports nicam and radio, ");
860 else if (state->has_nicam)
861 printk(KERN_CONT "supports nicam, ");
862 else if (state->has_radio)
863 printk(KERN_CONT "supports radio, ");
864 printk(KERN_CONT "mode is ");
866 /* version-specific initialization */
867 switch (state->opmode) {
869 printk(KERN_CONT "manual");
870 thread_func = msp3400c_thread;
872 case OPMODE_AUTODETECT:
873 printk(KERN_CONT "autodetect");
874 thread_func = msp3410d_thread;
876 case OPMODE_AUTOSELECT:
877 printk(KERN_CONT "autodetect and autoselect");
878 thread_func = msp34xxg_thread;
881 printk(KERN_CONT "\n");
883 /* startup control thread if needed */
885 state->kthread = kthread_run(thread_func, client, "msp34xx");
887 if (IS_ERR(state->kthread))
888 v4l_warn(client, "kernel_thread() failed\n");
889 msp_wake_thread(client);
894 static int msp_remove(struct i2c_client *client)
896 struct msp_state *state = to_state(i2c_get_clientdata(client));
898 v4l2_device_unregister_subdev(&state->sd);
899 /* shutdown control thread */
900 if (state->kthread) {
902 kthread_stop(state->kthread);
910 /* ----------------------------------------------------------------------- */
912 static const struct i2c_device_id msp_id[] = {
916 MODULE_DEVICE_TABLE(i2c, msp_id);
918 static struct v4l2_i2c_driver_data v4l2_i2c_data = {
921 .remove = msp_remove,
922 .suspend = msp_suspend,
923 .resume = msp_resume,
928 * Overrides for Emacs so that we follow Linus's tabbing style.
929 * ---------------------------------------------------------------------------