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 02110-1301, USA.
49 #include <linux/kernel.h>
50 #include <linux/module.h>
51 #include <linux/slab.h>
52 #include <linux/i2c.h>
53 #include <linux/videodev.h>
54 #include <linux/videodev2.h>
55 #include <media/v4l2-common.h>
56 #include <media/audiochip.h>
57 #include <linux/kthread.h>
58 #include <linux/suspend.h>
61 /* ---------------------------------------------------------------------- */
63 MODULE_DESCRIPTION("device driver for msp34xx TV sound processor");
64 MODULE_AUTHOR("Gerd Knorr");
65 MODULE_LICENSE("GPL");
67 /* module parameters */
68 static int opmode = OPMODE_AUTO;
69 int debug = 0; /* debug output */
70 int once = 0; /* no continous stereo monitoring */
71 int amsound = 0; /* hard-wire AM sound at 6.5 Hz (france),
72 the autoscan seems work well only with FM... */
73 int standard = 1; /* Override auto detect of audio standard, if needed. */
76 int stereo_threshold = 0x190; /* a2 threshold for stereo/bilingual
77 (msp34xxg only) 0x00a0-0x03c0 */
80 module_param(opmode, int, 0444);
83 module_param(once, bool, 0644);
84 module_param(debug, int, 0644);
85 module_param(stereo_threshold, int, 0644);
86 module_param(standard, int, 0644);
87 module_param(amsound, bool, 0644);
88 module_param(dolby, bool, 0644);
90 MODULE_PARM_DESC(opmode, "Forces a MSP3400 opmode. 0=Manual, 1=Autodetect, 2=Autodetect and autoselect");
91 MODULE_PARM_DESC(once, "No continuous stereo monitoring");
92 MODULE_PARM_DESC(debug, "Enable debug messages [0-3]");
93 MODULE_PARM_DESC(stereo_threshold, "Sets signal threshold to activate stereo");
94 MODULE_PARM_DESC(standard, "Specify audio standard: 32 = NTSC, 64 = radio, Default: Autodetect");
95 MODULE_PARM_DESC(amsound, "Hardwire AM sound at 6.5Hz (France), FM can autoscan");
96 MODULE_PARM_DESC(dolby, "Activates Dolby processsing");
98 /* ---------------------------------------------------------------------- */
100 /* control subaddress */
101 #define I2C_MSP_CONTROL 0x00
102 /* demodulator unit subaddress */
103 #define I2C_MSP_DEM 0x10
104 /* DSP unit subaddress */
105 #define I2C_MSP_DSP 0x12
107 /* Addresses to scan */
108 static unsigned short normal_i2c[] = { 0x80 >> 1, 0x88 >> 1, I2C_CLIENT_END };
111 /* ----------------------------------------------------------------------- */
112 /* functions for talking to the MSP3400C Sound processor */
114 int msp_reset(struct i2c_client *client)
116 /* reset and read revision code */
117 static u8 reset_off[3] = { I2C_MSP_CONTROL, 0x80, 0x00 };
118 static u8 reset_on[3] = { I2C_MSP_CONTROL, 0x00, 0x00 };
119 static u8 write[3] = { I2C_MSP_DSP + 1, 0x00, 0x1e };
121 struct i2c_msg reset[2] = {
122 { client->addr, I2C_M_IGNORE_NAK, 3, reset_off },
123 { client->addr, I2C_M_IGNORE_NAK, 3, reset_on },
125 struct i2c_msg test[2] = {
126 { client->addr, 0, 3, write },
127 { client->addr, I2C_M_RD, 2, read },
130 v4l_dbg(3, client, "msp_reset\n");
131 if (i2c_transfer(client->adapter, &reset[0], 1) != 1 ||
132 i2c_transfer(client->adapter, &reset[1], 1) != 1 ||
133 i2c_transfer(client->adapter, test, 2) != 2) {
134 v4l_err(client, "chip reset failed\n");
140 static int msp_read(struct i2c_client *client, int dev, int addr)
145 struct i2c_msg msgs[2] = {
146 { client->addr, 0, 3, write },
147 { client->addr, I2C_M_RD, 2, read }
151 write[1] = addr >> 8;
152 write[2] = addr & 0xff;
154 for (err = 0; err < 3; err++) {
155 if (i2c_transfer(client->adapter, msgs, 2) == 2)
157 v4l_warn(client, "I/O error #%d (read 0x%02x/0x%02x)\n", err,
159 current->state = TASK_INTERRUPTIBLE;
160 schedule_timeout(msecs_to_jiffies(10));
163 v4l_warn(client, "giving up, resetting chip. Sound will go off, sorry folks :-|\n");
167 retval = read[0] << 8 | read[1];
168 v4l_dbg(3, client, "msp_read(0x%x, 0x%x): 0x%x\n", dev, addr, retval);
172 int msp_read_dem(struct i2c_client *client, int addr)
174 return msp_read(client, I2C_MSP_DEM, addr);
177 int msp_read_dsp(struct i2c_client *client, int addr)
179 return msp_read(client, I2C_MSP_DSP, addr);
182 static int msp_write(struct i2c_client *client, int dev, int addr, int val)
188 buffer[1] = addr >> 8;
189 buffer[2] = addr & 0xff;
190 buffer[3] = val >> 8;
191 buffer[4] = val & 0xff;
193 v4l_dbg(3, client, "msp_write(0x%x, 0x%x, 0x%x)\n", dev, addr, val);
194 for (err = 0; err < 3; err++) {
195 if (i2c_master_send(client, buffer, 5) == 5)
197 v4l_warn(client, "I/O error #%d (write 0x%02x/0x%02x)\n", err,
199 current->state = TASK_INTERRUPTIBLE;
200 schedule_timeout(msecs_to_jiffies(10));
203 v4l_warn(client, "giving up, resetting chip. Sound will go off, sorry folks :-|\n");
210 int msp_write_dem(struct i2c_client *client, int addr, int val)
212 return msp_write(client, I2C_MSP_DEM, addr, val);
215 int msp_write_dsp(struct i2c_client *client, int addr, int val)
217 return msp_write(client, I2C_MSP_DSP, addr, val);
220 /* ----------------------------------------------------------------------- *
221 * bits 9 8 5 - SCART DSP input Select:
222 * 0 0 0 - SCART 1 to DSP input (reset position)
223 * 0 1 0 - MONO to DSP input
224 * 1 0 0 - SCART 2 to DSP input
225 * 1 1 1 - Mute DSP input
227 * bits 11 10 6 - SCART 1 Output Select:
228 * 0 0 0 - undefined (reset position)
229 * 0 1 0 - SCART 2 Input to SCART 1 Output (for devices with 2 SCARTS)
230 * 1 0 0 - MONO input to SCART 1 Output
231 * 1 1 0 - SCART 1 DA to SCART 1 Output
232 * 0 0 1 - SCART 2 DA to SCART 1 Output
233 * 0 1 1 - SCART 1 Input to SCART 1 Output
234 * 1 1 1 - Mute SCART 1 Output
236 * bits 13 12 7 - SCART 2 Output Select (for devices with 2 Output SCART):
237 * 0 0 0 - SCART 1 DA to SCART 2 Output (reset position)
238 * 0 1 0 - SCART 1 Input to SCART 2 Output
239 * 1 0 0 - MONO input to SCART 2 Output
240 * 0 0 1 - SCART 2 DA to SCART 2 Output
241 * 0 1 1 - SCART 2 Input to SCART 2 Output
242 * 1 1 0 - Mute SCART 2 Output
244 * Bits 4 to 0 should be zero.
245 * ----------------------------------------------------------------------- */
247 static int scarts[3][9] = {
248 /* MASK IN1 IN2 IN1_DA IN2_DA IN3 IN4 MONO MUTE */
249 /* SCART DSP Input select */
250 { 0x0320, 0x0000, 0x0200, -1, -1, 0x0300, 0x0020, 0x0100, 0x0320 },
251 /* SCART1 Output select */
252 { 0x0c40, 0x0440, 0x0400, 0x0c00, 0x0040, 0x0000, 0x0840, 0x0800, 0x0c40 },
253 /* SCART2 Output select */
254 { 0x3080, 0x1000, 0x1080, 0x0000, 0x0080, 0x2080, 0x3080, 0x2000, 0x3000 },
257 static char *scart_names[] = {
258 "mask", "in1", "in2", "in1 da", "in2 da", "in3", "in4", "mono", "mute"
261 void msp_set_scart(struct i2c_client *client, int in, int out)
263 struct msp_state *state = i2c_get_clientdata(client);
267 if (in >= 1 && in <= 8 && out >= 0 && out <= 2) {
268 if (-1 == scarts[out][in])
271 state->acb &= ~scarts[out][SCART_MASK];
272 state->acb |= scarts[out][in];
274 state->acb = 0xf60; /* Mute Input and SCART 1 Output */
276 v4l_dbg(1, client, "scart switch: %s => %d (ACB=0x%04x)\n",
277 scart_names[in], out, state->acb);
278 msp_write_dsp(client, 0x13, state->acb);
280 /* Sets I2S speed 0 = 1.024 Mbps, 1 = 2.048 Mbps */
281 msp_write_dem(client, 0x40, state->i2s_mode);
284 void msp_set_mute(struct i2c_client *client)
286 v4l_dbg(1, client, "mute audio\n");
287 msp_write_dsp(client, 0x0000, 0); /* loudspeaker */
288 msp_write_dsp(client, 0x0006, 0); /* headphones */
291 void msp_set_audio(struct i2c_client *client)
293 struct msp_state *state = i2c_get_clientdata(client);
294 int val = 0, bal = 0, bass, treble;
297 val = (state->volume * 0x7f / 65535) << 8;
299 bal = (state->balance / 256) - 128;
300 bass = ((state->bass - 32768) * 0x60 / 65535) << 8;
301 treble = ((state->treble - 32768) * 0x60 / 65535) << 8;
303 v4l_dbg(1, client, "mute=%s volume=%d balance=%d bass=%d treble=%d\n",
304 state->muted ? "on" : "off", state->volume, state->balance,
305 state->bass, state->treble);
307 msp_write_dsp(client, 0x0000, val); /* loudspeaker */
308 msp_write_dsp(client, 0x0006, val); /* headphones */
309 msp_write_dsp(client, 0x0007, state->muted ? 0x1 : (val | 0x1));
310 msp_write_dsp(client, 0x0001, bal << 8);
311 msp_write_dsp(client, 0x0002, bass); /* loudspeaker */
312 msp_write_dsp(client, 0x0003, treble); /* loudspeaker */
315 int msp_modus(struct i2c_client *client)
317 struct msp_state *state = i2c_get_clientdata(client);
320 v4l_dbg(1, client, "video mode selected to Radio\n");
324 if (state->std & V4L2_STD_PAL) {
325 v4l_dbg(1, client, "video mode selected to PAL\n");
328 /* experimental: not sure this works with all chip versions */
331 /* previous value, try this if it breaks ... */
335 if (state->std & V4L2_STD_NTSC) {
336 v4l_dbg(1, client, "video mode selected to NTSC\n");
339 if (state->std & V4L2_STD_SECAM) {
340 v4l_dbg(1, client, "video mode selected to SECAM\n");
346 /* ------------------------------------------------------------------------ */
349 static void msp_wake_thread(struct i2c_client *client)
351 struct msp_state *state = i2c_get_clientdata(client);
353 if (NULL == state->kthread)
355 msp_set_mute(client);
356 state->watch_stereo = 0;
358 wake_up_interruptible(&state->wq);
361 int msp_sleep(struct msp_state *state, int timeout)
363 DECLARE_WAITQUEUE(wait, current);
365 add_wait_queue(&state->wq, &wait);
366 if (!kthread_should_stop()) {
368 set_current_state(TASK_INTERRUPTIBLE);
371 schedule_timeout_interruptible
372 (msecs_to_jiffies(timeout));
376 remove_wait_queue(&state->wq, &wait);
378 return state->restart;
381 /* ------------------------------------------------------------------------ */
383 static int msp_mode_v4l2_to_v4l1(int rxsubchans)
387 if (rxsubchans & V4L2_TUNER_SUB_STEREO)
388 mode |= VIDEO_SOUND_STEREO;
389 if (rxsubchans & V4L2_TUNER_SUB_LANG2)
390 mode |= VIDEO_SOUND_LANG2;
391 if (rxsubchans & V4L2_TUNER_SUB_LANG1)
392 mode |= VIDEO_SOUND_LANG1;
394 mode |= VIDEO_SOUND_MONO;
398 static int msp_mode_v4l1_to_v4l2(int mode)
400 if (mode & VIDEO_SOUND_STEREO)
401 return V4L2_TUNER_MODE_STEREO;
402 if (mode & VIDEO_SOUND_LANG2)
403 return V4L2_TUNER_MODE_LANG2;
404 if (mode & VIDEO_SOUND_LANG1)
405 return V4L2_TUNER_MODE_LANG1;
406 return V4L2_TUNER_MODE_MONO;
409 static void msp_any_detect_stereo(struct i2c_client *client)
411 struct msp_state *state = i2c_get_clientdata(client);
413 switch (state->opmode) {
415 case OPMODE_AUTODETECT:
416 autodetect_stereo(client);
418 case OPMODE_AUTOSELECT:
419 msp34xxg_detect_stereo(client);
424 static struct v4l2_queryctrl msp_qctrl[] = {
426 .id = V4L2_CID_AUDIO_VOLUME,
431 .default_value = 58880,
433 .type = V4L2_CTRL_TYPE_INTEGER,
435 .id = V4L2_CID_AUDIO_BALANCE,
440 .default_value = 32768,
442 .type = V4L2_CTRL_TYPE_INTEGER,
444 .id = V4L2_CID_AUDIO_MUTE,
451 .type = V4L2_CTRL_TYPE_BOOLEAN,
453 .id = V4L2_CID_AUDIO_BASS,
458 .default_value = 32768,
459 .type = V4L2_CTRL_TYPE_INTEGER,
461 .id = V4L2_CID_AUDIO_TREBLE,
466 .default_value = 32768,
467 .type = V4L2_CTRL_TYPE_INTEGER,
472 static void msp_any_set_audmode(struct i2c_client *client, int audmode)
474 struct msp_state *state = i2c_get_clientdata(client);
476 switch (state->opmode) {
478 case OPMODE_AUTODETECT:
479 state->watch_stereo = 0;
480 msp3400c_setstereo(client, audmode);
482 case OPMODE_AUTOSELECT:
483 msp34xxg_set_audmode(client, audmode);
488 static int msp_get_ctrl(struct i2c_client *client, struct v4l2_control *ctrl)
490 struct msp_state *state = i2c_get_clientdata(client);
493 case V4L2_CID_AUDIO_MUTE:
494 ctrl->value = state->muted;
497 case V4L2_CID_AUDIO_BALANCE:
498 ctrl->value = state->balance;
501 case V4L2_CID_AUDIO_BASS:
502 ctrl->value = state->bass;
505 case V4L2_CID_AUDIO_TREBLE:
506 ctrl->value = state->treble;
509 case V4L2_CID_AUDIO_VOLUME:
510 ctrl->value = state->volume;
519 static int msp_set_ctrl(struct i2c_client *client, struct v4l2_control *ctrl)
521 struct msp_state *state = i2c_get_clientdata(client);
524 case V4L2_CID_AUDIO_MUTE:
525 if (ctrl->value < 0 || ctrl->value >= 2)
527 state->muted = ctrl->value;
530 case V4L2_CID_AUDIO_BASS:
531 state->bass = ctrl->value;
534 case V4L2_CID_AUDIO_TREBLE:
535 state->treble = ctrl->value;
538 case V4L2_CID_AUDIO_BALANCE:
539 state->balance = ctrl->value;
542 case V4L2_CID_AUDIO_VOLUME:
543 state->volume = ctrl->value;
544 if (state->volume == 0)
545 state->balance = 32768;
551 msp_set_audio(client);
555 static int msp_command(struct i2c_client *client, unsigned int cmd, void *arg)
557 struct msp_state *state = i2c_get_clientdata(client);
562 v4l_i2c_print_ioctl(client, cmd);
566 if (*sarg == state->input)
568 state->input = *sarg;
571 /* Hauppauge uses IN2 for the radio */
572 state->mode = MSP_MODE_FM_RADIO;
576 /* IN1 is often used for external input ... */
577 state->mode = MSP_MODE_EXTERN;
581 /* ... sometimes it is IN2 through ;) */
582 state->mode = MSP_MODE_EXTERN;
589 if (*sarg & AUDIO_MUTE)
590 msp_set_scart(client, SCART_MUTE, 0);
594 state->rxsubchans = V4L2_TUNER_SUB_STEREO;
595 state->audmode = V4L2_TUNER_MODE_STEREO;
596 msp_set_scart(client, scart, 0);
597 msp_write_dsp(client, 0x000d, 0x1900);
598 if (state->opmode != OPMODE_AUTOSELECT)
599 msp3400c_setstereo(client, state->audmode);
601 msp_wake_thread(client);
606 v4l_dbg(1, client, "switching to radio mode\n");
607 state->watch_stereo = 0;
608 switch (state->opmode) {
610 /* set msp3400 to FM radio mode */
611 msp3400c_setmode(client, MSP_MODE_FM_RADIO);
612 msp3400c_setcarrier(client, MSP_CARRIER(10.7),
614 msp_set_audio(client);
616 case OPMODE_AUTODETECT:
617 case OPMODE_AUTOSELECT:
618 /* the thread will do for us */
619 msp_wake_thread(client);
624 /* --- v4l ioctls --- */
625 /* take care: bttv does userspace copying, we'll get a
626 kernel pointer here... */
629 struct video_audio *va = arg;
631 va->flags |= VIDEO_AUDIO_VOLUME |
636 va->flags |= VIDEO_AUDIO_MUTE;
639 va->flags |= VIDEO_AUDIO_MUTE;
640 va->volume = state->volume;
641 va->balance = state->volume ? state->balance : 32768;
642 va->bass = state->bass;
643 va->treble = state->treble;
645 msp_any_detect_stereo(client);
646 va->mode = msp_mode_v4l2_to_v4l1(state->rxsubchans);
652 struct video_audio *va = arg;
654 state->muted = (va->flags & VIDEO_AUDIO_MUTE);
655 state->volume = va->volume;
656 state->balance = va->balance;
657 state->bass = va->bass;
658 state->treble = va->treble;
659 msp_set_audio(client);
661 if (va->mode != 0 && state->radio == 0)
662 msp_any_set_audmode(client, msp_mode_v4l1_to_v4l2(va->mode));
668 struct video_channel *vc = arg;
671 if (vc->norm == VIDEO_MODE_PAL)
672 state->std = V4L2_STD_PAL;
673 else if (vc->norm == VIDEO_MODE_SECAM)
674 state->std = V4L2_STD_SECAM;
676 state->std = V4L2_STD_NTSC;
677 msp_wake_thread(client);
682 case VIDIOC_S_FREQUENCY:
684 /* new channel -- kick audio carrier scan */
685 msp_wake_thread(client);
689 /* msp34xx specific */
692 struct msp_matrix *mspm = arg;
694 msp_set_scart(client, mspm->input, mspm->output);
698 /* --- v4l2 ioctls --- */
701 v4l2_std_id *id = arg;
705 msp_wake_thread(client);
709 case VIDIOC_ENUMINPUT:
711 struct v4l2_input *i = arg;
716 i->type = V4L2_INPUT_TYPE_TUNER;
719 strcpy(i->name, "Radio");
722 strcpy(i->name, "Extern 1");
725 strcpy(i->name, "Extern 2");
728 strcpy(i->name, "Television");
738 struct v4l2_audio *a = arg;
740 memset(a, 0, sizeof(*a));
744 strcpy(a->name, "Radio");
747 strcpy(a->name, "Extern 1");
750 strcpy(a->name, "Extern 2");
753 strcpy(a->name, "Television");
759 msp_any_detect_stereo(client);
760 if (state->audmode == V4L2_TUNER_MODE_STEREO) {
761 a->capability = V4L2_AUDCAP_STEREO;
769 struct v4l2_audio *sarg = arg;
771 switch (sarg->index) {
773 /* Hauppauge uses IN2 for the radio */
774 state->mode = MSP_MODE_FM_RADIO;
778 /* IN1 is often used for external input ... */
779 state->mode = MSP_MODE_EXTERN;
783 /* ... sometimes it is IN2 through ;) */
784 state->mode = MSP_MODE_EXTERN;
792 state->rxsubchans = V4L2_TUNER_SUB_STEREO;
793 state->audmode = V4L2_TUNER_MODE_STEREO;
794 msp_set_scart(client, scart, 0);
795 msp_write_dsp(client, 0x000d, 0x1900);
797 if (sarg->capability == V4L2_AUDCAP_STEREO) {
798 state->audmode = V4L2_TUNER_MODE_STEREO;
800 state->audmode &= ~V4L2_TUNER_MODE_STEREO;
802 msp_any_set_audmode(client, state->audmode);
803 msp_wake_thread(client);
809 struct v4l2_tuner *vt = arg;
811 msp_any_detect_stereo(client);
812 vt->audmode = state->audmode;
813 vt->rxsubchans = state->rxsubchans;
814 vt->capability = V4L2_TUNER_CAP_STEREO |
815 V4L2_TUNER_CAP_LANG1 | V4L2_TUNER_CAP_LANG2;
821 struct v4l2_tuner *vt = (struct v4l2_tuner *)arg;
823 /* only set audmode */
824 if (vt->audmode != -1 && vt->audmode != 0)
825 msp_any_set_audmode(client, vt->audmode);
829 case VIDIOC_G_AUDOUT:
831 struct v4l2_audioout *a = (struct v4l2_audioout *)arg;
834 memset(a, 0, sizeof(*a));
838 strcpy(a->name, "Scart1 Out");
841 strcpy(a->name, "Scart2 Out");
844 strcpy(a->name, "I2S Out");
853 case VIDIOC_S_AUDOUT:
855 struct v4l2_audioout *a = (struct v4l2_audioout *)arg;
857 if (a->index < 0 || a->index > 2)
860 v4l_dbg(1, client, "Setting audio out on msp34xx to input %i\n", a->index);
861 msp_set_scart(client, state->in_scart, a->index + 1);
866 case VIDIOC_INT_I2S_CLOCK_FREQ:
870 v4l_dbg(1, client, "Setting I2S speed to %d\n", *a);
885 case VIDIOC_QUERYCTRL:
887 struct v4l2_queryctrl *qc = arg;
890 for (i = 0; i < ARRAY_SIZE(msp_qctrl); i++)
891 if (qc->id && qc->id == msp_qctrl[i].id) {
892 memcpy(qc, &msp_qctrl[i], sizeof(*qc));
899 return msp_get_ctrl(client, arg);
902 return msp_set_ctrl(client, arg);
904 case VIDIOC_LOG_STATUS:
905 msp_any_detect_stereo(client);
906 v4l_info(client, "%s rev1 = 0x%04x rev2 = 0x%04x\n",
907 client->name, state->rev1, state->rev2);
908 v4l_info(client, "Audio: volume %d balance %d bass %d treble %d%s\n",
909 state->volume, state->balance,
910 state->bass, state->treble,
911 state->muted ? " (muted)" : "");
912 v4l_info(client, "Mode: %s (%s%s)\n", msp_standard_mode_name(state->mode),
913 (state->rxsubchans & V4L2_TUNER_SUB_STEREO) ? "stereo" : "mono",
914 (state->rxsubchans & V4L2_TUNER_SUB_LANG2) ? ", dual" : "");
915 v4l_info(client, "ACB: 0x%04x\n", state->acb);
925 static int msp_suspend(struct device * dev, pm_message_t state)
927 struct i2c_client *client = container_of(dev, struct i2c_client, dev);
929 v4l_dbg(1, client, "suspend\n");
934 static int msp_resume(struct device * dev)
936 struct i2c_client *client = container_of(dev, struct i2c_client, dev);
938 v4l_dbg(1, client, "resume\n");
939 msp_wake_thread(client);
943 /* ----------------------------------------------------------------------- */
945 static struct i2c_driver i2c_driver;
947 static int msp_attach(struct i2c_adapter *adapter, int address, int kind)
949 struct i2c_client *client;
950 struct msp_state *state;
951 int (*thread_func)(void *data) = NULL;
955 int msp_product, msp_prod_hi, msp_prod_lo;
958 client = kmalloc(sizeof(*client), GFP_KERNEL);
961 memset(client, 0, sizeof(*client));
962 client->addr = address;
963 client->adapter = adapter;
964 client->driver = &i2c_driver;
965 snprintf(client->name, sizeof(client->name) - 1, "msp3400");
967 if (msp_reset(client) == -1) {
968 v4l_dbg(1, client, "msp3400 not found\n");
973 state = kmalloc(sizeof(*state), GFP_KERNEL);
978 i2c_set_clientdata(client, state);
980 memset(state, 0, sizeof(*state));
981 state->std = V4L2_STD_NTSC;
982 state->volume = 58880; /* 0db gain */
983 state->balance = 32768; /* 0db gain */
985 state->treble = 32768;
989 init_waitqueue_head(&state->wq);
991 state->rev1 = msp_read_dsp(client, 0x1e);
992 if (state->rev1 != -1)
993 state->rev2 = msp_read_dsp(client, 0x1f);
994 v4l_dbg(1, client, "rev1=0x%04x, rev2=0x%04x\n", state->rev1, state->rev2);
995 if (state->rev1 == -1 || (state->rev1 == 0 && state->rev2 == 0)) {
996 v4l_dbg(1, client, "not an msp3400 (cannot read chip version)\n");
1002 msp_set_audio(client);
1004 msp_family = ((state->rev1 >> 4) & 0x0f) + 3;
1005 msp_product = (state->rev2 >> 8) & 0xff;
1006 msp_prod_hi = msp_product / 10;
1007 msp_prod_lo = msp_product % 10;
1008 msp_revision = (state->rev1 & 0x0f) + '@';
1009 msp_hard = ((state->rev1 >> 8) & 0xff) + '@';
1010 msp_rom = state->rev2 & 0x1f;
1011 snprintf(client->name, sizeof(client->name), "MSP%d4%02d%c-%c%d",
1012 msp_family, msp_product,
1013 msp_revision, msp_hard, msp_rom);
1015 /* Has NICAM support: all mspx41x and mspx45x products have NICAM */
1016 state->has_nicam = msp_prod_hi == 1 || msp_prod_hi == 5;
1017 /* Has radio support: was added with revision G */
1018 state->has_radio = msp_revision >= 'G';
1019 /* Has headphones output: not for stripped down products */
1020 state->has_headphones = msp_prod_lo < 5;
1021 /* Has scart4 input: not in pre D revisions, not in stripped D revs */
1022 state->has_scart4 = msp_family >= 4 || (msp_revision >= 'D' && msp_prod_lo < 5);
1023 /* Has scart2 and scart3 inputs and scart2 output: not in stripped
1024 down products of the '3' family */
1025 state->has_scart23_in_scart2_out = msp_family >= 4 || msp_prod_lo < 5;
1026 /* Has subwoofer output: not in pre-D revs and not in stripped down products */
1027 state->has_subwoofer = msp_revision >= 'D' && msp_prod_lo < 5;
1028 /* Has soundprocessing (bass/treble/balance/loudness/equalizer): not in
1029 stripped down products */
1030 state->has_sound_processing = msp_prod_lo < 7;
1031 /* Has Virtual Dolby Surround: only in msp34x1 */
1032 state->has_virtual_dolby_surround = msp_revision == 'G' && msp_prod_lo == 1;
1033 /* Has Virtual Dolby Surround & Dolby Pro Logic: only in msp34x2 */
1034 state->has_dolby_pro_logic = msp_revision == 'G' && msp_prod_lo == 2;
1036 state->opmode = opmode;
1037 if (state->opmode == OPMODE_AUTO) {
1038 /* MSP revision G and up have both autodetect and autoselect */
1039 if (msp_revision >= 'G')
1040 state->opmode = OPMODE_AUTOSELECT;
1041 /* MSP revision D and up have autodetect */
1042 else if (msp_revision >= 'D')
1043 state->opmode = OPMODE_AUTODETECT;
1045 state->opmode = OPMODE_MANUAL;
1048 /* hello world :-) */
1049 v4l_info(client, "%s found @ 0x%x (%s)\n", client->name, address << 1, adapter->name);
1050 v4l_info(client, "%s ", client->name);
1051 if (state->has_nicam && state->has_radio)
1052 printk("supports nicam and radio, ");
1053 else if (state->has_nicam)
1054 printk("supports nicam, ");
1055 else if (state->has_radio)
1056 printk("supports radio, ");
1059 /* version-specific initialization */
1060 switch (state->opmode) {
1063 thread_func = msp3400c_thread;
1065 case OPMODE_AUTODETECT:
1066 printk("autodetect");
1067 thread_func = msp3410d_thread;
1069 case OPMODE_AUTOSELECT:
1070 printk("autodetect and autoselect");
1071 thread_func = msp34xxg_thread;
1076 /* startup control thread if needed */
1078 state->kthread = kthread_run(thread_func, client, "msp34xx");
1080 if (state->kthread == NULL)
1081 v4l_warn(client, "kernel_thread() failed\n");
1082 msp_wake_thread(client);
1086 i2c_attach_client(client);
1091 static int msp_probe(struct i2c_adapter *adapter)
1093 if (adapter->class & I2C_CLASS_TV_ANALOG)
1094 return i2c_probe(adapter, &addr_data, msp_attach);
1098 static int msp_detach(struct i2c_client *client)
1100 struct msp_state *state = i2c_get_clientdata(client);
1103 /* shutdown control thread */
1104 if (state->kthread) {
1106 kthread_stop(state->kthread);
1110 err = i2c_detach_client(client);
1120 /* ----------------------------------------------------------------------- */
1122 /* i2c implementation */
1123 static struct i2c_driver i2c_driver = {
1124 .id = I2C_DRIVERID_MSP3400,
1125 .attach_adapter = msp_probe,
1126 .detach_client = msp_detach,
1127 .command = msp_command,
1130 .suspend = msp_suspend,
1131 .resume = msp_resume,
1135 static int __init msp3400_init_module(void)
1137 return i2c_add_driver(&i2c_driver);
1140 static void __exit msp3400_cleanup_module(void)
1142 i2c_del_driver(&i2c_driver);
1145 module_init(msp3400_init_module);
1146 module_exit(msp3400_cleanup_module);
1149 * Overrides for Emacs so that we follow Linus's tabbing style.
1150 * ---------------------------------------------------------------------------