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-legacy.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
111 /* Addresses to scan */
112 static unsigned short normal_i2c[] = { 0x80 >> 1, 0x88 >> 1, I2C_CLIENT_END };
116 /* ----------------------------------------------------------------------- */
117 /* functions for talking to the MSP3400C Sound processor */
119 int msp_reset(struct i2c_client *client)
121 /* reset and read revision code */
122 static u8 reset_off[3] = { I2C_MSP_CONTROL, 0x80, 0x00 };
123 static u8 reset_on[3] = { I2C_MSP_CONTROL, 0x00, 0x00 };
124 static u8 write[3] = { I2C_MSP_DSP + 1, 0x00, 0x1e };
126 struct i2c_msg reset[2] = {
127 { client->addr, I2C_M_IGNORE_NAK, 3, reset_off },
128 { client->addr, I2C_M_IGNORE_NAK, 3, reset_on },
130 struct i2c_msg test[2] = {
131 { client->addr, 0, 3, write },
132 { client->addr, I2C_M_RD, 2, read },
135 v4l_dbg(3, msp_debug, client, "msp_reset\n");
136 if (i2c_transfer(client->adapter, &reset[0], 1) != 1 ||
137 i2c_transfer(client->adapter, &reset[1], 1) != 1 ||
138 i2c_transfer(client->adapter, test, 2) != 2) {
139 v4l_err(client, "chip reset failed\n");
145 static int msp_read(struct i2c_client *client, int dev, int addr)
150 struct i2c_msg msgs[2] = {
151 { client->addr, 0, 3, write },
152 { client->addr, I2C_M_RD, 2, read }
156 write[1] = addr >> 8;
157 write[2] = addr & 0xff;
159 for (err = 0; err < 3; err++) {
160 if (i2c_transfer(client->adapter, msgs, 2) == 2)
162 v4l_warn(client, "I/O error #%d (read 0x%02x/0x%02x)\n", err,
164 schedule_timeout_interruptible(msecs_to_jiffies(10));
167 v4l_warn(client, "resetting chip, sound will go off.\n");
171 retval = read[0] << 8 | read[1];
172 v4l_dbg(3, msp_debug, client, "msp_read(0x%x, 0x%x): 0x%x\n",
177 int msp_read_dem(struct i2c_client *client, int addr)
179 return msp_read(client, I2C_MSP_DEM, addr);
182 int msp_read_dsp(struct i2c_client *client, int addr)
184 return msp_read(client, I2C_MSP_DSP, addr);
187 static int msp_write(struct i2c_client *client, int dev, int addr, int val)
193 buffer[1] = addr >> 8;
194 buffer[2] = addr & 0xff;
195 buffer[3] = val >> 8;
196 buffer[4] = val & 0xff;
198 v4l_dbg(3, msp_debug, client, "msp_write(0x%x, 0x%x, 0x%x)\n",
200 for (err = 0; err < 3; err++) {
201 if (i2c_master_send(client, buffer, 5) == 5)
203 v4l_warn(client, "I/O error #%d (write 0x%02x/0x%02x)\n", err,
205 schedule_timeout_interruptible(msecs_to_jiffies(10));
208 v4l_warn(client, "resetting chip, sound will go off.\n");
215 int msp_write_dem(struct i2c_client *client, int addr, int val)
217 return msp_write(client, I2C_MSP_DEM, addr, val);
220 int msp_write_dsp(struct i2c_client *client, int addr, int val)
222 return msp_write(client, I2C_MSP_DSP, addr, val);
225 /* ----------------------------------------------------------------------- *
226 * bits 9 8 5 - SCART DSP input Select:
227 * 0 0 0 - SCART 1 to DSP input (reset position)
228 * 0 1 0 - MONO to DSP input
229 * 1 0 0 - SCART 2 to DSP input
230 * 1 1 1 - Mute DSP input
232 * bits 11 10 6 - SCART 1 Output Select:
233 * 0 0 0 - undefined (reset position)
234 * 0 1 0 - SCART 2 Input to SCART 1 Output (for devices with 2 SCARTS)
235 * 1 0 0 - MONO input to SCART 1 Output
236 * 1 1 0 - SCART 1 DA to SCART 1 Output
237 * 0 0 1 - SCART 2 DA to SCART 1 Output
238 * 0 1 1 - SCART 1 Input to SCART 1 Output
239 * 1 1 1 - Mute SCART 1 Output
241 * bits 13 12 7 - SCART 2 Output Select (for devices with 2 Output SCART):
242 * 0 0 0 - SCART 1 DA to SCART 2 Output (reset position)
243 * 0 1 0 - SCART 1 Input to SCART 2 Output
244 * 1 0 0 - MONO input to SCART 2 Output
245 * 0 0 1 - SCART 2 DA to SCART 2 Output
246 * 0 1 1 - SCART 2 Input to SCART 2 Output
247 * 1 1 0 - Mute SCART 2 Output
249 * Bits 4 to 0 should be zero.
250 * ----------------------------------------------------------------------- */
252 static int scarts[3][9] = {
253 /* MASK IN1 IN2 IN3 IN4 IN1_DA IN2_DA MONO MUTE */
254 /* SCART DSP Input select */
255 { 0x0320, 0x0000, 0x0200, 0x0300, 0x0020, -1, -1, 0x0100, 0x0320 },
256 /* SCART1 Output select */
257 { 0x0c40, 0x0440, 0x0400, 0x0000, 0x0840, 0x0c00, 0x0040, 0x0800, 0x0c40 },
258 /* SCART2 Output select */
259 { 0x3080, 0x1000, 0x1080, 0x2080, 0x3080, 0x0000, 0x0080, 0x2000, 0x3000 },
262 static char *scart_names[] = {
263 "in1", "in2", "in3", "in4", "in1 da", "in2 da", "mono", "mute"
266 void msp_set_scart(struct i2c_client *client, int in, int out)
268 struct msp_state *state = to_state(i2c_get_clientdata(client));
270 state->in_scart = in;
272 if (in >= 0 && in <= 7 && out >= 0 && out <= 2) {
273 if (-1 == scarts[out][in + 1])
276 state->acb &= ~scarts[out][0];
277 state->acb |= scarts[out][in + 1];
279 state->acb = 0xf60; /* Mute Input and SCART 1 Output */
281 v4l_dbg(1, msp_debug, client, "scart switch: %s => %d (ACB=0x%04x)\n",
282 scart_names[in], out, state->acb);
283 msp_write_dsp(client, 0x13, state->acb);
285 /* Sets I2S speed 0 = 1.024 Mbps, 1 = 2.048 Mbps */
286 if (state->has_i2s_conf)
287 msp_write_dem(client, 0x40, state->i2s_mode);
290 void msp_set_audio(struct i2c_client *client)
292 struct msp_state *state = to_state(i2c_get_clientdata(client));
293 int bal = 0, bass, treble, loudness;
295 int reallymuted = state->muted | state->scan_in_progress;
298 val = (state->volume * 0x7f / 65535) << 8;
300 v4l_dbg(1, msp_debug, client, "mute=%s scanning=%s volume=%d\n",
301 state->muted ? "on" : "off",
302 state->scan_in_progress ? "yes" : "no",
305 msp_write_dsp(client, 0x0000, val);
306 msp_write_dsp(client, 0x0007, reallymuted ? 0x1 : (val | 0x1));
307 if (state->has_scart2_out_volume)
308 msp_write_dsp(client, 0x0040, reallymuted ? 0x1 : (val | 0x1));
309 if (state->has_headphones)
310 msp_write_dsp(client, 0x0006, val);
311 if (!state->has_sound_processing)
315 bal = (u8)((state->balance / 256) - 128);
316 bass = ((state->bass - 32768) * 0x60 / 65535) << 8;
317 treble = ((state->treble - 32768) * 0x60 / 65535) << 8;
318 loudness = state->loudness ? ((5 * 4) << 8) : 0;
320 v4l_dbg(1, msp_debug, client, "balance=%d bass=%d treble=%d loudness=%d\n",
321 state->balance, state->bass, state->treble, state->loudness);
323 msp_write_dsp(client, 0x0001, bal << 8);
324 msp_write_dsp(client, 0x0002, bass);
325 msp_write_dsp(client, 0x0003, treble);
326 msp_write_dsp(client, 0x0004, loudness);
327 if (!state->has_headphones)
329 msp_write_dsp(client, 0x0030, bal << 8);
330 msp_write_dsp(client, 0x0031, bass);
331 msp_write_dsp(client, 0x0032, treble);
332 msp_write_dsp(client, 0x0033, loudness);
335 /* ------------------------------------------------------------------------ */
337 static void msp_wake_thread(struct i2c_client *client)
339 struct msp_state *state = to_state(i2c_get_clientdata(client));
341 if (NULL == state->kthread)
343 state->watch_stereo = 0;
345 wake_up_interruptible(&state->wq);
348 int msp_sleep(struct msp_state *state, int timeout)
350 DECLARE_WAITQUEUE(wait, current);
352 add_wait_queue(&state->wq, &wait);
353 if (!kthread_should_stop()) {
355 set_current_state(TASK_INTERRUPTIBLE);
358 schedule_timeout_interruptible
359 (msecs_to_jiffies(timeout));
363 remove_wait_queue(&state->wq, &wait);
365 return state->restart;
368 /* ------------------------------------------------------------------------ */
370 static int msp_g_ctrl(struct v4l2_subdev *sd, struct v4l2_control *ctrl)
372 struct msp_state *state = to_state(sd);
375 case V4L2_CID_AUDIO_VOLUME:
376 ctrl->value = state->volume;
379 case V4L2_CID_AUDIO_MUTE:
380 ctrl->value = state->muted;
383 case V4L2_CID_AUDIO_BALANCE:
384 if (!state->has_sound_processing)
386 ctrl->value = state->balance;
389 case V4L2_CID_AUDIO_BASS:
390 if (!state->has_sound_processing)
392 ctrl->value = state->bass;
395 case V4L2_CID_AUDIO_TREBLE:
396 if (!state->has_sound_processing)
398 ctrl->value = state->treble;
401 case V4L2_CID_AUDIO_LOUDNESS:
402 if (!state->has_sound_processing)
404 ctrl->value = state->loudness;
413 static int msp_s_ctrl(struct v4l2_subdev *sd, struct v4l2_control *ctrl)
415 struct msp_state *state = to_state(sd);
416 struct i2c_client *client = v4l2_get_subdevdata(sd);
419 case V4L2_CID_AUDIO_VOLUME:
420 state->volume = ctrl->value;
421 if (state->volume == 0)
422 state->balance = 32768;
425 case V4L2_CID_AUDIO_MUTE:
426 if (ctrl->value < 0 || ctrl->value >= 2)
428 state->muted = ctrl->value;
431 case V4L2_CID_AUDIO_BASS:
432 if (!state->has_sound_processing)
434 state->bass = ctrl->value;
437 case V4L2_CID_AUDIO_TREBLE:
438 if (!state->has_sound_processing)
440 state->treble = ctrl->value;
443 case V4L2_CID_AUDIO_LOUDNESS:
444 if (!state->has_sound_processing)
446 state->loudness = ctrl->value;
449 case V4L2_CID_AUDIO_BALANCE:
450 if (!state->has_sound_processing)
452 state->balance = ctrl->value;
458 msp_set_audio(client);
462 /* --- v4l2 ioctls --- */
463 static int msp_s_radio(struct v4l2_subdev *sd)
465 struct msp_state *state = to_state(sd);
466 struct i2c_client *client = v4l2_get_subdevdata(sd);
471 v4l_dbg(1, msp_debug, client, "switching to radio mode\n");
472 state->watch_stereo = 0;
473 switch (state->opmode) {
475 /* set msp3400 to FM radio mode */
476 msp3400c_set_mode(client, MSP_MODE_FM_RADIO);
477 msp3400c_set_carrier(client, MSP_CARRIER(10.7),
479 msp_set_audio(client);
481 case OPMODE_AUTODETECT:
482 case OPMODE_AUTOSELECT:
483 /* the thread will do for us */
484 msp_wake_thread(client);
490 static int msp_s_frequency(struct v4l2_subdev *sd, struct v4l2_frequency *freq)
492 struct i2c_client *client = v4l2_get_subdevdata(sd);
494 /* new channel -- kick audio carrier scan */
495 msp_wake_thread(client);
499 static int msp_s_std(struct v4l2_subdev *sd, v4l2_std_id id)
501 struct msp_state *state = to_state(sd);
502 struct i2c_client *client = v4l2_get_subdevdata(sd);
503 int update = state->radio || state->v4l2_std != id;
505 state->v4l2_std = id;
508 msp_wake_thread(client);
512 static int msp_s_routing(struct v4l2_subdev *sd, const struct v4l2_routing *rt)
514 struct msp_state *state = to_state(sd);
515 struct i2c_client *client = v4l2_get_subdevdata(sd);
516 int tuner = (rt->input >> 3) & 1;
517 int sc_in = rt->input & 0x7;
518 int sc1_out = rt->output & 0xf;
519 int sc2_out = (rt->output >> 4) & 0xf;
522 int extern_input = 1;
524 if (state->routing.input == rt->input &&
525 state->routing.output == rt->output)
527 state->routing = *rt;
528 /* check if the tuner input is used */
529 for (i = 0; i < 5; i++) {
530 if (((rt->input >> (4 + i * 4)) & 0xf) == 0)
533 state->mode = extern_input ? MSP_MODE_EXTERN : MSP_MODE_AM_DETECT;
534 state->rxsubchans = V4L2_TUNER_SUB_STEREO;
535 msp_set_scart(client, sc_in, 0);
536 msp_set_scart(client, sc1_out, 1);
537 msp_set_scart(client, sc2_out, 2);
538 msp_set_audmode(client);
539 reg = (state->opmode == OPMODE_AUTOSELECT) ? 0x30 : 0xbb;
540 val = msp_read_dem(client, reg);
541 msp_write_dem(client, reg, (val & ~0x100) | (tuner << 8));
542 /* wake thread when a new input is chosen */
543 msp_wake_thread(client);
547 static int msp_g_tuner(struct v4l2_subdev *sd, struct v4l2_tuner *vt)
549 struct msp_state *state = to_state(sd);
550 struct i2c_client *client = v4l2_get_subdevdata(sd);
554 if (state->opmode == OPMODE_AUTOSELECT)
555 msp_detect_stereo(client);
556 vt->audmode = state->audmode;
557 vt->rxsubchans = state->rxsubchans;
558 vt->capability |= V4L2_TUNER_CAP_STEREO |
559 V4L2_TUNER_CAP_LANG1 | V4L2_TUNER_CAP_LANG2;
563 static int msp_s_tuner(struct v4l2_subdev *sd, struct v4l2_tuner *vt)
565 struct msp_state *state = to_state(sd);
566 struct i2c_client *client = v4l2_get_subdevdata(sd);
568 if (state->radio) /* TODO: add mono/stereo support for radio */
570 if (state->audmode == vt->audmode)
572 state->audmode = vt->audmode;
573 /* only set audmode */
574 msp_set_audmode(client);
578 static int msp_s_i2s_clock_freq(struct v4l2_subdev *sd, u32 freq)
580 struct msp_state *state = to_state(sd);
581 struct i2c_client *client = v4l2_get_subdevdata(sd);
583 v4l_dbg(1, msp_debug, client, "Setting I2S speed to %d\n", freq);
598 static int msp_queryctrl(struct v4l2_subdev *sd, struct v4l2_queryctrl *qc)
600 struct msp_state *state = to_state(sd);
603 case V4L2_CID_AUDIO_VOLUME:
604 return v4l2_ctrl_query_fill(qc, 0, 65535, 65535 / 100, 58880);
605 case V4L2_CID_AUDIO_MUTE:
606 return v4l2_ctrl_query_fill(qc, 0, 1, 1, 0);
610 if (!state->has_sound_processing)
613 case V4L2_CID_AUDIO_LOUDNESS:
614 return v4l2_ctrl_query_fill(qc, 0, 1, 1, 0);
615 case V4L2_CID_AUDIO_BALANCE:
616 case V4L2_CID_AUDIO_BASS:
617 case V4L2_CID_AUDIO_TREBLE:
618 return v4l2_ctrl_query_fill(qc, 0, 65535, 65535 / 100, 32768);
625 static int msp_g_chip_ident(struct v4l2_subdev *sd, struct v4l2_dbg_chip_ident *chip)
627 struct msp_state *state = to_state(sd);
628 struct i2c_client *client = v4l2_get_subdevdata(sd);
630 return v4l2_chip_ident_i2c_client(client, chip, state->ident,
631 (state->rev1 << 16) | state->rev2);
634 static int msp_log_status(struct v4l2_subdev *sd)
636 struct msp_state *state = to_state(sd);
637 struct i2c_client *client = v4l2_get_subdevdata(sd);
640 if (state->opmode == OPMODE_AUTOSELECT)
641 msp_detect_stereo(client);
642 v4l_info(client, "%s rev1 = 0x%04x rev2 = 0x%04x\n",
643 client->name, state->rev1, state->rev2);
644 v4l_info(client, "Audio: volume %d%s\n",
645 state->volume, state->muted ? " (muted)" : "");
646 if (state->has_sound_processing) {
647 v4l_info(client, "Audio: balance %d bass %d treble %d loudness %s\n",
648 state->balance, state->bass,
650 state->loudness ? "on" : "off");
652 switch (state->mode) {
653 case MSP_MODE_AM_DETECT: p = "AM (for carrier detect)"; break;
654 case MSP_MODE_FM_RADIO: p = "FM Radio"; break;
655 case MSP_MODE_FM_TERRA: p = "Terrestial FM-mono/stereo"; break;
656 case MSP_MODE_FM_SAT: p = "Satellite FM-mono"; break;
657 case MSP_MODE_FM_NICAM1: p = "NICAM/FM (B/G, D/K)"; break;
658 case MSP_MODE_FM_NICAM2: p = "NICAM/FM (I)"; break;
659 case MSP_MODE_AM_NICAM: p = "NICAM/AM (L)"; break;
660 case MSP_MODE_BTSC: p = "BTSC"; break;
661 case MSP_MODE_EXTERN: p = "External input"; break;
662 default: p = "unknown"; break;
664 if (state->mode == MSP_MODE_EXTERN) {
665 v4l_info(client, "Mode: %s\n", p);
666 } else if (state->opmode == OPMODE_MANUAL) {
667 v4l_info(client, "Mode: %s (%s%s)\n", p,
668 (state->rxsubchans & V4L2_TUNER_SUB_STEREO) ? "stereo" : "mono",
669 (state->rxsubchans & V4L2_TUNER_SUB_LANG2) ? ", dual" : "");
671 if (state->opmode == OPMODE_AUTODETECT)
672 v4l_info(client, "Mode: %s\n", p);
673 v4l_info(client, "Standard: %s (%s%s)\n",
674 msp_standard_std_name(state->std),
675 (state->rxsubchans & V4L2_TUNER_SUB_STEREO) ? "stereo" : "mono",
676 (state->rxsubchans & V4L2_TUNER_SUB_LANG2) ? ", dual" : "");
678 v4l_info(client, "Audmode: 0x%04x\n", state->audmode);
679 v4l_info(client, "Routing: 0x%08x (input) 0x%08x (output)\n",
680 state->routing.input, state->routing.output);
681 v4l_info(client, "ACB: 0x%04x\n", state->acb);
685 static int msp_suspend(struct i2c_client *client, pm_message_t state)
687 v4l_dbg(1, msp_debug, client, "suspend\n");
692 static int msp_resume(struct i2c_client *client)
694 v4l_dbg(1, msp_debug, client, "resume\n");
695 msp_wake_thread(client);
699 static int msp_command(struct i2c_client *client, unsigned cmd, void *arg)
701 return v4l2_subdev_command(i2c_get_clientdata(client), cmd, arg);
704 /* ----------------------------------------------------------------------- */
706 static const struct v4l2_subdev_core_ops msp_core_ops = {
707 .log_status = msp_log_status,
708 .g_chip_ident = msp_g_chip_ident,
709 .g_ctrl = msp_g_ctrl,
710 .s_ctrl = msp_s_ctrl,
711 .queryctrl = msp_queryctrl,
714 static const struct v4l2_subdev_tuner_ops msp_tuner_ops = {
715 .s_frequency = msp_s_frequency,
716 .g_tuner = msp_g_tuner,
717 .s_tuner = msp_s_tuner,
718 .s_radio = msp_s_radio,
722 static const struct v4l2_subdev_audio_ops msp_audio_ops = {
723 .s_routing = msp_s_routing,
724 .s_i2s_clock_freq = msp_s_i2s_clock_freq,
727 static const struct v4l2_subdev_ops msp_ops = {
728 .core = &msp_core_ops,
729 .tuner = &msp_tuner_ops,
730 .audio = &msp_audio_ops,
733 /* ----------------------------------------------------------------------- */
735 static int msp_probe(struct i2c_client *client, const struct i2c_device_id *id)
737 struct msp_state *state;
738 struct v4l2_subdev *sd;
739 int (*thread_func)(void *data) = NULL;
743 int msp_product, msp_prod_hi, msp_prod_lo;
747 strlcpy(client->name, "msp3400", sizeof(client->name));
749 if (msp_reset(client) == -1) {
750 v4l_dbg(1, msp_debug, client, "msp3400 not found\n");
754 state = kzalloc(sizeof(*state), GFP_KERNEL);
759 v4l2_i2c_subdev_init(sd, client, &msp_ops);
761 state->v4l2_std = V4L2_STD_NTSC;
762 state->audmode = V4L2_TUNER_MODE_STEREO;
763 state->volume = 58880; /* 0db gain */
764 state->balance = 32768; /* 0db gain */
766 state->treble = 32768;
771 init_waitqueue_head(&state->wq);
772 /* These are the reset input/output positions */
773 state->routing.input = MSP_INPUT_DEFAULT;
774 state->routing.output = MSP_OUTPUT_DEFAULT;
776 state->rev1 = msp_read_dsp(client, 0x1e);
777 if (state->rev1 != -1)
778 state->rev2 = msp_read_dsp(client, 0x1f);
779 v4l_dbg(1, msp_debug, client, "rev1=0x%04x, rev2=0x%04x\n",
780 state->rev1, state->rev2);
781 if (state->rev1 == -1 || (state->rev1 == 0 && state->rev2 == 0)) {
782 v4l_dbg(1, msp_debug, client,
783 "not an msp3400 (cannot read chip version)\n");
788 msp_set_audio(client);
790 msp_family = ((state->rev1 >> 4) & 0x0f) + 3;
791 msp_product = (state->rev2 >> 8) & 0xff;
792 msp_prod_hi = msp_product / 10;
793 msp_prod_lo = msp_product % 10;
794 msp_revision = (state->rev1 & 0x0f) + '@';
795 msp_hard = ((state->rev1 >> 8) & 0xff) + '@';
796 msp_rom = state->rev2 & 0x1f;
797 /* Rev B=2, C=3, D=4, G=7 */
798 state->ident = msp_family * 10000 + 4000 + msp_product * 10 +
801 /* Has NICAM support: all mspx41x and mspx45x products have NICAM */
803 msp_prod_hi == 1 || msp_prod_hi == 5;
804 /* Has radio support: was added with revision G */
807 /* Has headphones output: not for stripped down products */
808 state->has_headphones =
810 /* Has scart2 input: not in stripped down products of the '3' family */
812 msp_family >= 4 || msp_prod_lo < 7;
813 /* Has scart3 input: not in stripped down products of the '3' family */
815 msp_family >= 4 || msp_prod_lo < 5;
816 /* Has scart4 input: not in pre D revisions, not in stripped D revs */
818 msp_family >= 4 || (msp_revision >= 'D' && msp_prod_lo < 5);
819 /* Has scart2 output: not in stripped down products of
821 state->has_scart2_out =
822 msp_family >= 4 || msp_prod_lo < 5;
823 /* Has scart2 a volume control? Not in pre-D revisions. */
824 state->has_scart2_out_volume =
825 msp_revision > 'C' && state->has_scart2_out;
826 /* Has a configurable i2s out? */
827 state->has_i2s_conf =
828 msp_revision >= 'G' && msp_prod_lo < 7;
829 /* Has subwoofer output: not in pre-D revs and not in stripped down
831 state->has_subwoofer =
832 msp_revision >= 'D' && msp_prod_lo < 5;
833 /* Has soundprocessing (bass/treble/balance/loudness/equalizer):
834 * not in stripped down products */
835 state->has_sound_processing =
837 /* Has Virtual Dolby Surround: only in msp34x1 */
838 state->has_virtual_dolby_surround =
839 msp_revision == 'G' && msp_prod_lo == 1;
840 /* Has Virtual Dolby Surround & Dolby Pro Logic: only in msp34x2 */
841 state->has_dolby_pro_logic =
842 msp_revision == 'G' && msp_prod_lo == 2;
843 /* The msp343xG supports BTSC only and cannot do Automatic Standard
846 msp_family == 3 && msp_revision == 'G' && msp_prod_hi == 3;
848 state->opmode = opmode;
849 if (state->opmode == OPMODE_AUTO) {
850 /* MSP revision G and up have both autodetect and autoselect */
851 if (msp_revision >= 'G')
852 state->opmode = OPMODE_AUTOSELECT;
853 /* MSP revision D and up have autodetect */
854 else if (msp_revision >= 'D')
855 state->opmode = OPMODE_AUTODETECT;
857 state->opmode = OPMODE_MANUAL;
860 /* hello world :-) */
861 v4l_info(client, "MSP%d4%02d%c-%c%d found @ 0x%x (%s)\n",
862 msp_family, msp_product,
863 msp_revision, msp_hard, msp_rom,
864 client->addr << 1, client->adapter->name);
865 v4l_info(client, "%s ", client->name);
866 if (state->has_nicam && state->has_radio)
867 printk(KERN_CONT "supports nicam and radio, ");
868 else if (state->has_nicam)
869 printk(KERN_CONT "supports nicam, ");
870 else if (state->has_radio)
871 printk(KERN_CONT "supports radio, ");
872 printk(KERN_CONT "mode is ");
874 /* version-specific initialization */
875 switch (state->opmode) {
877 printk(KERN_CONT "manual");
878 thread_func = msp3400c_thread;
880 case OPMODE_AUTODETECT:
881 printk(KERN_CONT "autodetect");
882 thread_func = msp3410d_thread;
884 case OPMODE_AUTOSELECT:
885 printk(KERN_CONT "autodetect and autoselect");
886 thread_func = msp34xxg_thread;
889 printk(KERN_CONT "\n");
891 /* startup control thread if needed */
893 state->kthread = kthread_run(thread_func, client, "msp34xx");
895 if (IS_ERR(state->kthread))
896 v4l_warn(client, "kernel_thread() failed\n");
897 msp_wake_thread(client);
902 static int msp_remove(struct i2c_client *client)
904 struct msp_state *state = to_state(i2c_get_clientdata(client));
906 v4l2_device_unregister_subdev(&state->sd);
907 /* shutdown control thread */
908 if (state->kthread) {
910 kthread_stop(state->kthread);
918 /* ----------------------------------------------------------------------- */
920 static const struct i2c_device_id msp_id[] = {
924 MODULE_DEVICE_TABLE(i2c, msp_id);
926 static struct v4l2_i2c_driver_data v4l2_i2c_data = {
928 .driverid = I2C_DRIVERID_MSP3400,
929 .command = msp_command,
931 .remove = msp_remove,
932 .suspend = msp_suspend,
933 .resume = msp_resume,
938 * Overrides for Emacs so that we follow Linus's tabbing style.
939 * ---------------------------------------------------------------------------