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, int, 0644);
84 module_param(debug, int, 0644);
85 module_param(stereo_threshold, int, 0644);
86 module_param(standard, int, 0644);
87 module_param(amsound, int, 0644);
88 module_param(dolby, int, 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 };
113 /* ----------------------------------------------------------------------- */
114 /* functions for talking to the MSP3400C Sound processor */
116 int msp_reset(struct i2c_client *client)
118 /* reset and read revision code */
119 static u8 reset_off[3] = { I2C_MSP_CONTROL, 0x80, 0x00 };
120 static u8 reset_on[3] = { I2C_MSP_CONTROL, 0x00, 0x00 };
121 static u8 write[3] = { I2C_MSP_DSP + 1, 0x00, 0x1e };
123 struct i2c_msg reset[2] = {
124 { client->addr, I2C_M_IGNORE_NAK, 3, reset_off },
125 { client->addr, I2C_M_IGNORE_NAK, 3, reset_on },
127 struct i2c_msg test[2] = {
128 { client->addr, 0, 3, write },
129 { client->addr, I2C_M_RD, 2, read },
132 msp_dbg3("msp_reset\n");
133 if (i2c_transfer(client->adapter, &reset[0], 1) != 1 ||
134 i2c_transfer(client->adapter, &reset[1], 1) != 1 ||
135 i2c_transfer(client->adapter, test, 2) != 2) {
136 msp_err("chip reset failed\n");
142 static int msp_read(struct i2c_client *client, int dev, int addr)
147 struct i2c_msg msgs[2] = {
148 { client->addr, 0, 3, write },
149 { client->addr, I2C_M_RD, 2, read }
153 write[1] = addr >> 8;
154 write[2] = addr & 0xff;
156 for (err = 0; err < 3; err++) {
157 if (i2c_transfer(client->adapter, msgs, 2) == 2)
159 msp_warn("I/O error #%d (read 0x%02x/0x%02x)\n", err,
161 current->state = TASK_INTERRUPTIBLE;
162 schedule_timeout(msecs_to_jiffies(10));
165 msp_warn("giving up, resetting chip. Sound will go off, sorry folks :-|\n");
169 retval = read[0] << 8 | read[1];
170 msp_dbg3("msp_read(0x%x, 0x%x): 0x%x\n", dev, addr, retval);
174 int msp_read_dem(struct i2c_client *client, int addr)
176 return msp_read(client, I2C_MSP_DEM, addr);
179 int msp_read_dsp(struct i2c_client *client, int addr)
181 return msp_read(client, I2C_MSP_DSP, addr);
184 static int msp_write(struct i2c_client *client, int dev, int addr, int val)
190 buffer[1] = addr >> 8;
191 buffer[2] = addr & 0xff;
192 buffer[3] = val >> 8;
193 buffer[4] = val & 0xff;
195 msp_dbg3("msp_write(0x%x, 0x%x, 0x%x)\n", dev, addr, val);
196 for (err = 0; err < 3; err++) {
197 if (i2c_master_send(client, buffer, 5) == 5)
199 msp_warn("I/O error #%d (write 0x%02x/0x%02x)\n", err,
201 current->state = TASK_INTERRUPTIBLE;
202 schedule_timeout(msecs_to_jiffies(10));
205 msp_warn("giving up, resetting chip. Sound will go off, sorry folks :-|\n");
212 int msp_write_dem(struct i2c_client *client, int addr, int val)
214 return msp_write(client, I2C_MSP_DEM, addr, val);
217 int msp_write_dsp(struct i2c_client *client, int addr, int val)
219 return msp_write(client, I2C_MSP_DSP, addr, val);
222 /* ----------------------------------------------------------------------- *
223 * bits 9 8 5 - SCART DSP input Select:
224 * 0 0 0 - SCART 1 to DSP input (reset position)
225 * 0 1 0 - MONO to DSP input
226 * 1 0 0 - SCART 2 to DSP input
227 * 1 1 1 - Mute DSP input
229 * bits 11 10 6 - SCART 1 Output Select:
230 * 0 0 0 - undefined (reset position)
231 * 0 1 0 - SCART 2 Input to SCART 1 Output (for devices with 2 SCARTS)
232 * 1 0 0 - MONO input to SCART 1 Output
233 * 1 1 0 - SCART 1 DA to SCART 1 Output
234 * 0 0 1 - SCART 2 DA to SCART 1 Output
235 * 0 1 1 - SCART 1 Input to SCART 1 Output
236 * 1 1 1 - Mute SCART 1 Output
238 * bits 13 12 7 - SCART 2 Output Select (for devices with 2 Output SCART):
239 * 0 0 0 - SCART 1 DA to SCART 2 Output (reset position)
240 * 0 1 0 - SCART 1 Input to SCART 2 Output
241 * 1 0 0 - MONO input to SCART 2 Output
242 * 0 0 1 - SCART 2 DA to SCART 2 Output
243 * 0 1 1 - SCART 2 Input to SCART 2 Output
244 * 1 1 0 - Mute SCART 2 Output
246 * Bits 4 to 0 should be zero.
247 * ----------------------------------------------------------------------- */
249 static int scarts[3][9] = {
250 /* MASK IN1 IN2 IN1_DA IN2_DA IN3 IN4 MONO MUTE */
251 /* SCART DSP Input select */
252 { 0x0320, 0x0000, 0x0200, -1, -1, 0x0300, 0x0020, 0x0100, 0x0320 },
253 /* SCART1 Output select */
254 { 0x0c40, 0x0440, 0x0400, 0x0c00, 0x0040, 0x0000, 0x0840, 0x0800, 0x0c40 },
255 /* SCART2 Output select */
256 { 0x3080, 0x1000, 0x1080, 0x0000, 0x0080, 0x2080, 0x3080, 0x2000, 0x3000 },
259 static char *scart_names[] = {
260 "mask", "in1", "in2", "in1 da", "in2 da", "in3", "in4", "mono", "mute"
263 void msp_set_scart(struct i2c_client *client, int in, int out)
265 struct msp_state *state = i2c_get_clientdata(client);
269 if (in >= 1 && in <= 8 && out >= 0 && out <= 2) {
270 if (-1 == scarts[out][in])
273 state->acb &= ~scarts[out][SCART_MASK];
274 state->acb |= scarts[out][in];
276 state->acb = 0xf60; /* Mute Input and SCART 1 Output */
278 msp_dbg1("scart switch: %s => %d (ACB=0x%04x)\n",
279 scart_names[in], out, state->acb);
280 msp_write_dsp(client, 0x13, state->acb);
282 /* Sets I2S speed 0 = 1.024 Mbps, 1 = 2.048 Mbps */
283 msp_write_dem(client, 0x40, state->i2s_mode);
286 void msp_set_mute(struct i2c_client *client)
288 msp_dbg1("mute audio\n");
289 msp_write_dsp(client, 0x0000, 0); /* loudspeaker */
290 msp_write_dsp(client, 0x0006, 0); /* headphones */
293 void msp_set_audio(struct i2c_client *client)
295 struct msp_state *state = i2c_get_clientdata(client);
296 int val = 0, bal = 0, bass, treble;
299 val = (state->volume * 0x7f / 65535) << 8;
301 bal = (state->balance / 256) - 128;
302 bass = ((state->bass - 32768) * 0x60 / 65535) << 8;
303 treble = ((state->treble - 32768) * 0x60 / 65535) << 8;
305 msp_dbg1("mute=%s volume=%d balance=%d bass=%d treble=%d\n",
306 state->muted ? "on" : "off", state->volume, state->balance,
307 state->bass, state->treble);
309 msp_write_dsp(client, 0x0000, val); /* loudspeaker */
310 msp_write_dsp(client, 0x0006, val); /* headphones */
311 msp_write_dsp(client, 0x0007, state->muted ? 0x1 : (val | 0x1));
312 msp_write_dsp(client, 0x0001, bal << 8);
313 msp_write_dsp(client, 0x0002, bass); /* loudspeaker */
314 msp_write_dsp(client, 0x0003, treble); /* loudspeaker */
317 int msp_modus(struct i2c_client *client, int norm)
321 msp_dbg1("video mode selected to PAL\n");
324 /* experimental: not sure this works with all chip versions */
327 /* previous value, try this if it breaks ... */
330 case VIDEO_MODE_NTSC: /* BTSC */
331 msp_dbg1("video mode selected to NTSC\n");
333 case VIDEO_MODE_SECAM:
334 msp_dbg1("video mode selected to SECAM\n");
336 case VIDEO_MODE_RADIO:
337 msp_dbg1("video mode selected to Radio\n");
339 case VIDEO_MODE_AUTO:
340 msp_dbg1("video mode selected to Auto\n");
347 int msp_standard(int norm)
352 case VIDEO_MODE_NTSC: /* BTSC */
354 case VIDEO_MODE_SECAM:
356 case VIDEO_MODE_RADIO:
363 /* ------------------------------------------------------------------------ */
366 static void msp_wake_thread(struct i2c_client *client)
368 struct msp_state *state = i2c_get_clientdata(client);
370 if (NULL == state->kthread)
372 msp_set_mute(client);
373 state->watch_stereo = 0;
375 wake_up_interruptible(&state->wq);
378 int msp_sleep(struct msp_state *state, int timeout)
380 DECLARE_WAITQUEUE(wait, current);
382 add_wait_queue(&state->wq, &wait);
383 if (!kthread_should_stop()) {
385 set_current_state(TASK_INTERRUPTIBLE);
388 schedule_timeout_interruptible
389 (msecs_to_jiffies(timeout));
393 remove_wait_queue(&state->wq, &wait);
395 return state->restart;
398 /* ------------------------------------------------------------------------ */
400 static int msp_mode_v4l2_to_v4l1(int rxsubchans)
404 if (rxsubchans & V4L2_TUNER_SUB_STEREO)
405 mode |= VIDEO_SOUND_STEREO;
406 if (rxsubchans & V4L2_TUNER_SUB_LANG2)
407 mode |= VIDEO_SOUND_LANG2;
408 if (rxsubchans & V4L2_TUNER_SUB_LANG1)
409 mode |= VIDEO_SOUND_LANG1;
411 mode |= VIDEO_SOUND_MONO;
415 static int msp_mode_v4l1_to_v4l2(int mode)
417 if (mode & VIDEO_SOUND_STEREO)
418 return V4L2_TUNER_MODE_STEREO;
419 if (mode & VIDEO_SOUND_LANG2)
420 return V4L2_TUNER_MODE_LANG2;
421 if (mode & VIDEO_SOUND_LANG1)
422 return V4L2_TUNER_MODE_LANG1;
423 return V4L2_TUNER_MODE_MONO;
426 static void msp_any_detect_stereo(struct i2c_client *client)
428 struct msp_state *state = i2c_get_clientdata(client);
430 switch (state->opmode) {
432 case OPMODE_AUTODETECT:
433 autodetect_stereo(client);
435 case OPMODE_AUTOSELECT:
436 msp34xxg_detect_stereo(client);
441 static struct v4l2_queryctrl msp_qctrl[] = {
443 .id = V4L2_CID_AUDIO_VOLUME,
448 .default_value = 58880,
450 .type = V4L2_CTRL_TYPE_INTEGER,
452 .id = V4L2_CID_AUDIO_BALANCE,
457 .default_value = 32768,
459 .type = V4L2_CTRL_TYPE_INTEGER,
461 .id = V4L2_CID_AUDIO_MUTE,
468 .type = V4L2_CTRL_TYPE_BOOLEAN,
470 .id = V4L2_CID_AUDIO_BASS,
475 .default_value = 32768,
476 .type = V4L2_CTRL_TYPE_INTEGER,
478 .id = V4L2_CID_AUDIO_TREBLE,
483 .default_value = 32768,
484 .type = V4L2_CTRL_TYPE_INTEGER,
489 static void msp_any_set_audmode(struct i2c_client *client, int audmode)
491 struct msp_state *state = i2c_get_clientdata(client);
493 switch (state->opmode) {
495 case OPMODE_AUTODETECT:
496 state->watch_stereo = 0;
497 msp3400c_setstereo(client, audmode);
499 case OPMODE_AUTOSELECT:
500 msp34xxg_set_audmode(client, audmode);
505 static int msp_get_ctrl(struct i2c_client *client, struct v4l2_control *ctrl)
507 struct msp_state *state = i2c_get_clientdata(client);
510 case V4L2_CID_AUDIO_MUTE:
511 ctrl->value = state->muted;
514 case V4L2_CID_AUDIO_BALANCE:
515 ctrl->value = state->balance;
518 case V4L2_CID_AUDIO_BASS:
519 ctrl->value = state->bass;
522 case V4L2_CID_AUDIO_TREBLE:
523 ctrl->value = state->treble;
526 case V4L2_CID_AUDIO_VOLUME:
527 ctrl->value = state->volume;
536 static int msp_set_ctrl(struct i2c_client *client, struct v4l2_control *ctrl)
538 struct msp_state *state = i2c_get_clientdata(client);
541 case V4L2_CID_AUDIO_MUTE:
542 if (ctrl->value < 0 || ctrl->value >= 2)
544 state->muted = ctrl->value;
547 case V4L2_CID_AUDIO_BASS:
548 state->bass = ctrl->value;
551 case V4L2_CID_AUDIO_TREBLE:
552 state->treble = ctrl->value;
555 case V4L2_CID_AUDIO_BALANCE:
556 state->balance = ctrl->value;
559 case V4L2_CID_AUDIO_VOLUME:
560 state->volume = ctrl->value;
561 if (state->volume == 0)
562 state->balance = 32768;
568 msp_set_audio(client);
572 static int msp_command(struct i2c_client *client, unsigned int cmd, void *arg)
574 struct msp_state *state = i2c_get_clientdata(client);
579 v4l_i2c_print_ioctl(client, cmd);
583 if (*sarg == state->input)
585 state->input = *sarg;
588 /* Hauppauge uses IN2 for the radio */
589 state->mode = MSP_MODE_FM_RADIO;
593 /* IN1 is often used for external input ... */
594 state->mode = MSP_MODE_EXTERN;
598 /* ... sometimes it is IN2 through ;) */
599 state->mode = MSP_MODE_EXTERN;
606 if (*sarg & AUDIO_MUTE)
607 msp_set_scart(client, SCART_MUTE, 0);
611 state->rxsubchans = V4L2_TUNER_SUB_STEREO;
612 state->audmode = V4L2_TUNER_MODE_STEREO;
613 msp_set_scart(client, scart, 0);
614 msp_write_dsp(client, 0x000d, 0x1900);
615 if (state->opmode != OPMODE_AUTOSELECT)
616 msp3400c_setstereo(client, state->audmode);
618 msp_wake_thread(client);
622 state->norm = VIDEO_MODE_RADIO;
623 msp_dbg1("switching to radio mode\n");
624 state->watch_stereo = 0;
625 switch (state->opmode) {
627 /* set msp3400 to FM radio mode */
628 msp3400c_setmode(client, MSP_MODE_FM_RADIO);
629 msp3400c_setcarrier(client, MSP_CARRIER(10.7),
631 msp_set_audio(client);
633 case OPMODE_AUTODETECT:
634 case OPMODE_AUTOSELECT:
635 /* the thread will do for us */
636 msp_wake_thread(client);
641 /* --- v4l ioctls --- */
642 /* take care: bttv does userspace copying, we'll get a
643 kernel pointer here... */
646 struct video_audio *va = arg;
648 va->flags |= VIDEO_AUDIO_VOLUME |
653 va->flags |= VIDEO_AUDIO_MUTE;
656 va->flags |= VIDEO_AUDIO_MUTE;
657 va->volume = state->volume;
658 va->balance = state->volume ? state->balance : 32768;
659 va->bass = state->bass;
660 va->treble = state->treble;
662 msp_any_detect_stereo(client);
663 va->mode = msp_mode_v4l2_to_v4l1(state->rxsubchans);
669 struct video_audio *va = arg;
671 state->muted = (va->flags & VIDEO_AUDIO_MUTE);
672 state->volume = va->volume;
673 state->balance = va->balance;
674 state->bass = va->bass;
675 state->treble = va->treble;
676 msp_set_audio(client);
678 if (va->mode != 0 && state->norm != VIDEO_MODE_RADIO)
679 msp_any_set_audmode(client, msp_mode_v4l1_to_v4l2(va->mode));
685 struct video_channel *vc = arg;
687 state->norm = vc->norm;
688 msp_wake_thread(client);
693 case VIDIOC_S_FREQUENCY:
695 /* new channel -- kick audio carrier scan */
696 msp_wake_thread(client);
700 /* msp34xx specific */
703 struct msp_matrix *mspm = arg;
705 msp_set_scart(client, mspm->input, mspm->output);
709 /* --- v4l2 ioctls --- */
712 v4l2_std_id *id = arg;
714 /*FIXME: use V4L2 mode flags on msp3400 instead of V4L1*/
715 if (*id & V4L2_STD_PAL) {
716 state->norm = VIDEO_MODE_PAL;
717 } else if (*id & V4L2_STD_SECAM) {
718 state->norm = VIDEO_MODE_SECAM;
720 state->norm = VIDEO_MODE_NTSC;
723 msp_wake_thread(client);
727 case VIDIOC_ENUMINPUT:
729 struct v4l2_input *i = arg;
734 i->type = V4L2_INPUT_TYPE_TUNER;
737 strcpy(i->name, "Radio");
740 strcpy(i->name, "Extern 1");
743 strcpy(i->name, "Extern 2");
746 strcpy(i->name, "Television");
756 struct v4l2_audio *a = arg;
758 memset(a, 0, sizeof(*a));
762 strcpy(a->name, "Radio");
765 strcpy(a->name, "Extern 1");
768 strcpy(a->name, "Extern 2");
771 strcpy(a->name, "Television");
777 msp_any_detect_stereo(client);
778 if (state->audmode == V4L2_TUNER_MODE_STEREO) {
779 a->capability = V4L2_AUDCAP_STEREO;
787 struct v4l2_audio *sarg = arg;
789 switch (sarg->index) {
791 /* Hauppauge uses IN2 for the radio */
792 state->mode = MSP_MODE_FM_RADIO;
796 /* IN1 is often used for external input ... */
797 state->mode = MSP_MODE_EXTERN;
801 /* ... sometimes it is IN2 through ;) */
802 state->mode = MSP_MODE_EXTERN;
810 state->rxsubchans = V4L2_TUNER_SUB_STEREO;
811 state->audmode = V4L2_TUNER_MODE_STEREO;
812 msp_set_scart(client, scart, 0);
813 msp_write_dsp(client, 0x000d, 0x1900);
815 if (sarg->capability == V4L2_AUDCAP_STEREO) {
816 state->audmode = V4L2_TUNER_MODE_STEREO;
818 state->audmode &= ~V4L2_TUNER_MODE_STEREO;
820 msp_any_set_audmode(client, state->audmode);
821 msp_wake_thread(client);
827 struct v4l2_tuner *vt = arg;
829 msp_any_detect_stereo(client);
830 vt->audmode = state->audmode;
831 vt->rxsubchans = state->rxsubchans;
832 vt->capability = V4L2_TUNER_CAP_STEREO |
833 V4L2_TUNER_CAP_LANG1 | V4L2_TUNER_CAP_LANG2;
839 struct v4l2_tuner *vt = (struct v4l2_tuner *)arg;
841 /* only set audmode */
842 if (vt->audmode != -1 && vt->audmode != 0)
843 msp_any_set_audmode(client, vt->audmode);
847 case VIDIOC_G_AUDOUT:
849 struct v4l2_audioout *a = (struct v4l2_audioout *)arg;
852 memset(a, 0, sizeof(*a));
856 strcpy(a->name, "Scart1 Out");
859 strcpy(a->name, "Scart2 Out");
862 strcpy(a->name, "I2S Out");
871 case VIDIOC_S_AUDOUT:
873 struct v4l2_audioout *a = (struct v4l2_audioout *)arg;
875 if (a->index < 0 || a->index > 2)
878 msp_dbg1("Setting audio out on msp34xx to input %i\n", a->index);
879 msp_set_scart(client, state->in_scart, a->index + 1);
884 case VIDIOC_INT_I2S_CLOCK_FREQ:
888 msp_dbg1("Setting I2S speed to %d\n", *a);
903 case VIDIOC_QUERYCTRL:
905 struct v4l2_queryctrl *qc = arg;
908 for (i = 0; i < ARRAY_SIZE(msp_qctrl); i++)
909 if (qc->id && qc->id == msp_qctrl[i].id) {
910 memcpy(qc, &msp_qctrl[i], sizeof(*qc));
917 return msp_get_ctrl(client, arg);
920 return msp_set_ctrl(client, arg);
922 case VIDIOC_LOG_STATUS:
923 msp_any_detect_stereo(client);
924 msp_info("%s rev1 = 0x%04x rev2 = 0x%04x\n",
925 client->name, state->rev1, state->rev2);
926 msp_info("Audio: volume %d balance %d bass %d treble %d%s\n",
927 state->volume, state->balance,
928 state->bass, state->treble,
929 state->muted ? " (muted)" : "");
930 msp_info("Mode: %s (%s%s)\n", msp_standard_mode_name(state->mode),
931 (state->rxsubchans & V4L2_TUNER_SUB_STEREO) ? "stereo" : "mono",
932 (state->rxsubchans & V4L2_TUNER_SUB_LANG2) ? ", dual" : "");
933 msp_info("ACB: 0x%04x\n", state->acb);
943 static int msp_suspend(struct device * dev, pm_message_t state)
945 struct i2c_client *client = container_of(dev, struct i2c_client, dev);
947 msp_dbg1("suspend\n");
952 static int msp_resume(struct device * dev)
954 struct i2c_client *client = container_of(dev, struct i2c_client, dev);
956 msp_dbg1("resume\n");
957 msp_wake_thread(client);
961 /* ----------------------------------------------------------------------- */
963 static struct i2c_driver i2c_driver;
965 static int msp_attach(struct i2c_adapter *adapter, int address, int kind)
967 struct i2c_client *client;
968 struct msp_state *state;
969 int (*thread_func)(void *data) = NULL;
971 client = kmalloc(sizeof(*client), GFP_KERNEL);
974 memset(client, 0, sizeof(*client));
975 client->addr = address;
976 client->adapter = adapter;
977 client->driver = &i2c_driver;
978 client->flags = I2C_CLIENT_ALLOW_USE;
979 snprintf(client->name, sizeof(client->name) - 1, "msp3400");
981 if (msp_reset(client) == -1) {
982 msp_dbg1("msp3400 not found\n");
987 state = kmalloc(sizeof(*state), GFP_KERNEL);
992 i2c_set_clientdata(client, state);
994 memset(state, 0, sizeof(*state));
995 state->norm = VIDEO_MODE_NTSC;
996 state->volume = 58880; /* 0db gain */
997 state->balance = 32768; /* 0db gain */
999 state->treble = 32768;
1002 state->i2s_mode = 0;
1003 init_waitqueue_head(&state->wq);
1005 state->rev1 = msp_read_dsp(client, 0x1e);
1006 if (state->rev1 != -1)
1007 state->rev2 = msp_read_dsp(client, 0x1f);
1008 msp_dbg1("rev1=0x%04x, rev2=0x%04x\n", state->rev1, state->rev2);
1009 if (state->rev1 == -1 || (state->rev1 == 0 && state->rev2 == 0)) {
1010 msp_dbg1("not an msp3400 (cannot read chip version)\n");
1016 msp_set_audio(client);
1018 snprintf(client->name, sizeof(client->name), "MSP%c4%02d%c-%c%d",
1019 ((state->rev1 >> 4) & 0x0f) + '3',
1020 (state->rev2 >> 8) & 0xff,
1021 (state->rev1 & 0x0f) + '@',
1022 ((state->rev1 >> 8) & 0xff) + '@',
1023 state->rev2 & 0x1f);
1025 state->opmode = opmode;
1026 if (state->opmode == OPMODE_AUTO) {
1027 /* MSP revision G and up have both autodetect and autoselect */
1028 if ((state->rev1 & 0x0f) >= 'G'-'@')
1029 state->opmode = OPMODE_AUTOSELECT;
1030 /* MSP revision D and up have autodetect */
1031 else if ((state->rev1 & 0x0f) >= 'D'-'@')
1032 state->opmode = OPMODE_AUTODETECT;
1034 state->opmode = OPMODE_MANUAL;
1037 /* hello world :-) */
1038 msp_info("%s found @ 0x%x (%s)\n", client->name, address << 1, adapter->name);
1039 msp_info("%s ", client->name);
1040 if (HAVE_NICAM(state) && HAVE_RADIO(state))
1041 printk("supports nicam and radio, ");
1042 else if (HAVE_NICAM(state))
1043 printk("supports nicam, ");
1044 else if (HAVE_RADIO(state))
1045 printk("supports radio, ");
1048 /* version-specific initialization */
1049 switch (state->opmode) {
1052 thread_func = msp3400c_thread;
1054 case OPMODE_AUTODETECT:
1055 printk("autodetect");
1056 thread_func = msp3410d_thread;
1058 case OPMODE_AUTOSELECT:
1059 printk("autodetect and autoselect");
1060 thread_func = msp34xxg_thread;
1065 /* startup control thread if needed */
1067 state->kthread = kthread_run(thread_func, client, "msp34xx");
1069 if (state->kthread == NULL)
1070 msp_warn("kernel_thread() failed\n");
1071 msp_wake_thread(client);
1075 i2c_attach_client(client);
1080 static int msp_probe(struct i2c_adapter *adapter)
1082 if (adapter->class & I2C_CLASS_TV_ANALOG)
1083 return i2c_probe(adapter, &addr_data, msp_attach);
1087 static int msp_detach(struct i2c_client *client)
1089 struct msp_state *state = i2c_get_clientdata(client);
1092 /* shutdown control thread */
1093 if (state->kthread) {
1095 kthread_stop(state->kthread);
1099 err = i2c_detach_client(client);
1109 /* ----------------------------------------------------------------------- */
1111 /* i2c implementation */
1112 static struct i2c_driver i2c_driver = {
1113 .id = I2C_DRIVERID_MSP3400,
1114 .attach_adapter = msp_probe,
1115 .detach_client = msp_detach,
1116 .command = msp_command,
1119 .suspend = msp_suspend,
1120 .resume = msp_resume,
1122 .owner = THIS_MODULE,
1125 static int __init msp3400_init_module(void)
1127 return i2c_add_driver(&i2c_driver);
1130 static void __exit msp3400_cleanup_module(void)
1132 i2c_del_driver(&i2c_driver);
1135 module_init(msp3400_init_module);
1136 module_exit(msp3400_cleanup_module);
1139 * Overrides for Emacs so that we follow Linus's tabbing style.
1140 * ---------------------------------------------------------------------------