Merge branches 'x86/apic', 'x86/cleanups', 'x86/cpufeature', 'x86/crashdump', 'x86...
[linux-2.6] / drivers / staging / go7007 / wis-sony-tuner.c
1 /*
2  * Copyright (C) 2005-2006 Micronas USA Inc.
3  *
4  * This program is free software; you can redistribute it and/or modify
5  * it under the terms of the GNU General Public License (Version 2) as
6  * published by the Free Software Foundation.
7  *
8  * This program is distributed in the hope that it will be useful,
9  * but WITHOUT ANY WARRANTY; without even the implied warranty of
10  * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
11  * GNU General Public License for more details.
12  *
13  * You should have received a copy of the GNU General Public License
14  * along with this program; if not, write to the Free Software Foundation,
15  * Inc., 59 Temple Place - Suite 330, Boston MA 02111-1307, USA.
16  */
17
18 #include <linux/module.h>
19 #include <linux/init.h>
20 #include <linux/i2c.h>
21 #include <linux/videodev2.h>
22 #include <media/tuner.h>
23 #include <media/v4l2-common.h>
24 #include <media/v4l2-ioctl.h>
25
26 #include "wis-i2c.h"
27
28 /* #define MPX_DEBUG */
29
30 /* AS(IF/MPX) pin:      LOW      HIGH/OPEN
31  * IF/MPX address:   0x42/0x40   0x43/0x44
32  */
33 #define IF_I2C_ADDR     0x43
34 #define MPX_I2C_ADDR    0x44
35
36 static v4l2_std_id force_band;
37 static char force_band_str[] = "-";
38 module_param_string(force_band, force_band_str, sizeof(force_band_str), 0644);
39 static int force_mpx_mode = -1;
40 module_param(force_mpx_mode, int, 0644);
41
42 /* Store tuner info in the same format as tuner.c, so maybe we can put the
43  * Sony tuner support in there. */
44 struct sony_tunertype {
45         char *name;
46         unsigned char Vendor; /* unused here */
47         unsigned char Type; /* unused here */
48
49         unsigned short thresh1; /*  band switch VHF_LO <=> VHF_HI */
50         unsigned short thresh2; /*  band switch VHF_HI <=> UHF */
51         unsigned char VHF_L;
52         unsigned char VHF_H;
53         unsigned char UHF;
54         unsigned char config;
55         unsigned short IFPCoff;
56 };
57
58 /* This array is indexed by (tuner_type - 200) */
59 static struct sony_tunertype sony_tuners[] = {
60         { "Sony PAL+SECAM (BTF-PG472Z)", 0, 0,
61           16*144.25, 16*427.25, 0x01, 0x02, 0x04, 0xc6, 623},
62         { "Sony NTSC_JP (BTF-PK467Z)", 0, 0,
63           16*220.25, 16*467.25, 0x01, 0x02, 0x04, 0xc6, 940},
64         { "Sony NTSC (BTF-PB463Z)", 0, 0,
65           16*130.25, 16*364.25, 0x01, 0x02, 0x04, 0xc6, 732},
66 };
67
68 struct wis_sony_tuner {
69         int type;
70         v4l2_std_id std;
71         unsigned int freq;
72         int mpxmode;
73         u32 audmode;
74 };
75
76 /* Basically the same as default_set_tv_freq() in tuner.c */
77 static int set_freq(struct i2c_client *client, int freq)
78 {
79         struct wis_sony_tuner *t = i2c_get_clientdata(client);
80         char *band_name;
81         int n;
82         int band_select;
83         struct sony_tunertype *tun;
84         u8 buffer[4];
85
86         tun = &sony_tuners[t->type - 200];
87         if (freq < tun->thresh1) {
88                 band_name = "VHF_L";
89                 band_select = tun->VHF_L;
90         } else if (freq < tun->thresh2) {
91                 band_name = "VHF_H";
92                 band_select = tun->VHF_H;
93         } else {
94                 band_name = "UHF";
95                 band_select = tun->UHF;
96         }
97         printk(KERN_DEBUG "wis-sony-tuner: tuning to frequency %d.%04d (%s)\n",
98                         freq / 16, (freq % 16) * 625, band_name);
99         n = freq + tun->IFPCoff;
100
101         buffer[0] = n >> 8;
102         buffer[1] = n & 0xff;
103         buffer[2] = tun->config;
104         buffer[3] = band_select;
105         i2c_master_send(client, buffer, 4);
106
107         return 0;
108 }
109
110 static int mpx_write(struct i2c_client *client, int dev, int addr, int val)
111 {
112         u8 buffer[5];
113         struct i2c_msg msg;
114
115         buffer[0] = dev;
116         buffer[1] = addr >> 8;
117         buffer[2] = addr & 0xff;
118         buffer[3] = val >> 8;
119         buffer[4] = val & 0xff;
120         msg.addr = MPX_I2C_ADDR;
121         msg.flags = 0;
122         msg.len = 5;
123         msg.buf = buffer;
124         i2c_transfer(client->adapter, &msg, 1);
125         return 0;
126 }
127
128 /*
129  * MPX register values for the BTF-PG472Z:
130  *
131  *                                 FM_     NICAM_  SCART_
132  *          MODUS  SOURCE    ACB   PRESCAL PRESCAL PRESCAL SYSTEM  VOLUME
133  *         10/0030 12/0008 12/0013 12/000E 12/0010 12/0000 10/0020 12/0000
134  *         ---------------------------------------------------------------
135  * Auto     1003    0020    0100    2603    5000    XXXX    0001    7500
136  *
137  * B/G
138  *  Mono    1003    0020    0100    2603    5000    XXXX    0003    7500
139  *  A2      1003    0020    0100    2601    5000    XXXX    0003    7500
140  *  NICAM   1003    0120    0100    2603    5000    XXXX    0008    7500
141  *
142  * I
143  *  Mono    1003    0020    0100    2603    7900    XXXX    000A    7500
144  *  NICAM   1003    0120    0100    2603    7900    XXXX    000A    7500
145  *
146  * D/K
147  *  Mono    1003    0020    0100    2603    5000    XXXX    0004    7500
148  *  A2-1    1003    0020    0100    2601    5000    XXXX    0004    7500
149  *  A2-2    1003    0020    0100    2601    5000    XXXX    0005    7500
150  *  A2-3    1003    0020    0100    2601    5000    XXXX    0007    7500
151  *  NICAM   1003    0120    0100    2603    5000    XXXX    000B    7500
152  *
153  * L/L'
154  *  Mono    0003    0200    0100    7C03    5000    2200    0009    7500
155  *  NICAM   0003    0120    0100    7C03    5000    XXXX    0009    7500
156  *
157  * M
158  *  Mono    1003    0200    0100    2B03    5000    2B00    0002    7500
159  *
160  * For Asia, replace the 0x26XX in FM_PRESCALE with 0x14XX.
161  *
162  * Bilingual selection in A2/NICAM:
163  *
164  *         High byte of SOURCE     Left chan   Right chan
165  *                 0x01              MAIN         SUB
166  *                 0x03              MAIN         MAIN
167  *                 0x04              SUB          SUB
168  *
169  * Force mono in NICAM by setting the high byte of SOURCE to 0x02 (L/L') or
170  * 0x00 (all other bands).  Force mono in A2 with FMONO_A2:
171  *
172  *                      FMONO_A2
173  *                      10/0022
174  *                      --------
175  *     Forced mono ON     07F0
176  *     Forced mono OFF    0190
177  */
178
179 static struct {
180         enum { AUD_MONO, AUD_A2, AUD_NICAM, AUD_NICAM_L } audio_mode;
181         u16 modus;
182         u16 source;
183         u16 acb;
184         u16 fm_prescale;
185         u16 nicam_prescale;
186         u16 scart_prescale;
187         u16 system;
188         u16 volume;
189 } mpx_audio_modes[] = {
190         /* Auto */      { AUD_MONO,     0x1003, 0x0020, 0x0100, 0x2603,
191                                         0x5000, 0x0000, 0x0001, 0x7500 },
192         /* B/G Mono */  { AUD_MONO,     0x1003, 0x0020, 0x0100, 0x2603,
193                                         0x5000, 0x0000, 0x0003, 0x7500 },
194         /* B/G A2 */    { AUD_A2,       0x1003, 0x0020, 0x0100, 0x2601,
195                                         0x5000, 0x0000, 0x0003, 0x7500 },
196         /* B/G NICAM */ { AUD_NICAM,    0x1003, 0x0120, 0x0100, 0x2603,
197                                         0x5000, 0x0000, 0x0008, 0x7500 },
198         /* I Mono */    { AUD_MONO,     0x1003, 0x0020, 0x0100, 0x2603,
199                                         0x7900, 0x0000, 0x000A, 0x7500 },
200         /* I NICAM */   { AUD_NICAM,    0x1003, 0x0120, 0x0100, 0x2603,
201                                         0x7900, 0x0000, 0x000A, 0x7500 },
202         /* D/K Mono */  { AUD_MONO,     0x1003, 0x0020, 0x0100, 0x2603,
203                                         0x5000, 0x0000, 0x0004, 0x7500 },
204         /* D/K A2-1 */  { AUD_A2,       0x1003, 0x0020, 0x0100, 0x2601,
205                                         0x5000, 0x0000, 0x0004, 0x7500 },
206         /* D/K A2-2 */  { AUD_A2,       0x1003, 0x0020, 0x0100, 0x2601,
207                                         0x5000, 0x0000, 0x0005, 0x7500 },
208         /* D/K A2-3 */  { AUD_A2,       0x1003, 0x0020, 0x0100, 0x2601,
209                                         0x5000, 0x0000, 0x0007, 0x7500 },
210         /* D/K NICAM */ { AUD_NICAM,    0x1003, 0x0120, 0x0100, 0x2603,
211                                         0x5000, 0x0000, 0x000B, 0x7500 },
212         /* L/L' Mono */ { AUD_MONO,     0x0003, 0x0200, 0x0100, 0x7C03,
213                                         0x5000, 0x2200, 0x0009, 0x7500 },
214         /* L/L' NICAM */{ AUD_NICAM_L,  0x0003, 0x0120, 0x0100, 0x7C03,
215                                         0x5000, 0x0000, 0x0009, 0x7500 },
216 };
217
218 #define MPX_NUM_MODES   ARRAY_SIZE(mpx_audio_modes)
219
220 static int mpx_setup(struct i2c_client *client)
221 {
222         struct wis_sony_tuner *t = i2c_get_clientdata(client);
223         u16 source = 0;
224         u8 buffer[3];
225         struct i2c_msg msg;
226
227         /* reset MPX */
228         buffer[0] = 0x00;
229         buffer[1] = 0x80;
230         buffer[2] = 0x00;
231         msg.addr = MPX_I2C_ADDR;
232         msg.flags = 0;
233         msg.len = 3;
234         msg.buf = buffer;
235         i2c_transfer(client->adapter, &msg, 1);
236         buffer[1] = 0x00;
237         i2c_transfer(client->adapter, &msg, 1);
238
239         if (mpx_audio_modes[t->mpxmode].audio_mode != AUD_MONO) {
240                 switch (t->audmode) {
241                 case V4L2_TUNER_MODE_MONO:
242                         switch (mpx_audio_modes[t->mpxmode].audio_mode) {
243                         case AUD_A2:
244                                 source = mpx_audio_modes[t->mpxmode].source;
245                                 break;
246                         case AUD_NICAM:
247                                 source = 0x0000;
248                                 break;
249                         case AUD_NICAM_L:
250                                 source = 0x0200;
251                                 break;
252                         default:
253                                 break;
254                         }
255                         break;
256                 case V4L2_TUNER_MODE_STEREO:
257                         source = mpx_audio_modes[t->mpxmode].source;
258                         break;
259                 case V4L2_TUNER_MODE_LANG1:
260                         source = 0x0300;
261                         break;
262                 case V4L2_TUNER_MODE_LANG2:
263                         source = 0x0400;
264                         break;
265                 }
266                 source |= mpx_audio_modes[t->mpxmode].source & 0x00ff;
267         } else
268                 source = mpx_audio_modes[t->mpxmode].source;
269
270         mpx_write(client, 0x10, 0x0030, mpx_audio_modes[t->mpxmode].modus);
271         mpx_write(client, 0x12, 0x0008, source);
272         mpx_write(client, 0x12, 0x0013, mpx_audio_modes[t->mpxmode].acb);
273         mpx_write(client, 0x12, 0x000e,
274                         mpx_audio_modes[t->mpxmode].fm_prescale);
275         mpx_write(client, 0x12, 0x0010,
276                         mpx_audio_modes[t->mpxmode].nicam_prescale);
277         mpx_write(client, 0x12, 0x000d,
278                         mpx_audio_modes[t->mpxmode].scart_prescale);
279         mpx_write(client, 0x10, 0x0020, mpx_audio_modes[t->mpxmode].system);
280         mpx_write(client, 0x12, 0x0000, mpx_audio_modes[t->mpxmode].volume);
281         if (mpx_audio_modes[t->mpxmode].audio_mode == AUD_A2)
282                 mpx_write(client, 0x10, 0x0022,
283                         t->audmode == V4L2_TUNER_MODE_MONO ?  0x07f0 : 0x0190);
284
285 #ifdef MPX_DEBUG
286         {
287                 u8 buf1[3], buf2[2];
288                 struct i2c_msg msgs[2];
289
290                 printk(KERN_DEBUG "wis-sony-tuner: MPX registers: %04x %04x "
291                                 "%04x %04x %04x %04x %04x %04x\n",
292                                 mpx_audio_modes[t->mpxmode].modus,
293                                 source,
294                                 mpx_audio_modes[t->mpxmode].acb,
295                                 mpx_audio_modes[t->mpxmode].fm_prescale,
296                                 mpx_audio_modes[t->mpxmode].nicam_prescale,
297                                 mpx_audio_modes[t->mpxmode].scart_prescale,
298                                 mpx_audio_modes[t->mpxmode].system,
299                                 mpx_audio_modes[t->mpxmode].volume);
300                 buf1[0] = 0x11;
301                 buf1[1] = 0x00;
302                 buf1[2] = 0x7e;
303                 msgs[0].addr = MPX_I2C_ADDR;
304                 msgs[0].flags = 0;
305                 msgs[0].len = 3;
306                 msgs[0].buf = buf1;
307                 msgs[1].addr = MPX_I2C_ADDR;
308                 msgs[1].flags = I2C_M_RD;
309                 msgs[1].len = 2;
310                 msgs[1].buf = buf2;
311                 i2c_transfer(client->adapter, msgs, 2);
312                 printk(KERN_DEBUG "wis-sony-tuner: MPX system: %02x%02x\n",
313                                 buf2[0], buf2[1]);
314                 buf1[0] = 0x11;
315                 buf1[1] = 0x02;
316                 buf1[2] = 0x00;
317                 i2c_transfer(client->adapter, msgs, 2);
318                 printk(KERN_DEBUG "wis-sony-tuner: MPX status: %02x%02x\n",
319                                 buf2[0], buf2[1]);
320         }
321 #endif
322         return 0;
323 }
324
325 /*
326  * IF configuration values for the BTF-PG472Z:
327  *
328  *      B/G: 0x94 0x70 0x49
329  *      I:   0x14 0x70 0x4a
330  *      D/K: 0x14 0x70 0x4b
331  *      L:   0x04 0x70 0x4b
332  *      L':  0x44 0x70 0x53
333  *      M:   0x50 0x30 0x4c
334  */
335
336 static int set_if(struct i2c_client *client)
337 {
338         struct wis_sony_tuner *t = i2c_get_clientdata(client);
339         u8 buffer[4];
340         struct i2c_msg msg;
341         int default_mpx_mode = 0;
342
343         /* configure IF */
344         buffer[0] = 0;
345         if (t->std & V4L2_STD_PAL_BG) {
346                 buffer[1] = 0x94;
347                 buffer[2] = 0x70;
348                 buffer[3] = 0x49;
349                 default_mpx_mode = 1;
350         } else if (t->std & V4L2_STD_PAL_I) {
351                 buffer[1] = 0x14;
352                 buffer[2] = 0x70;
353                 buffer[3] = 0x4a;
354                 default_mpx_mode = 4;
355         } else if (t->std & V4L2_STD_PAL_DK) {
356                 buffer[1] = 0x14;
357                 buffer[2] = 0x70;
358                 buffer[3] = 0x4b;
359                 default_mpx_mode = 6;
360         } else if (t->std & V4L2_STD_SECAM_L) {
361                 buffer[1] = 0x04;
362                 buffer[2] = 0x70;
363                 buffer[3] = 0x4b;
364                 default_mpx_mode = 11;
365         }
366         msg.addr = IF_I2C_ADDR;
367         msg.flags = 0;
368         msg.len = 4;
369         msg.buf = buffer;
370         i2c_transfer(client->adapter, &msg, 1);
371
372         /* Select MPX mode if not forced by the user */
373         if (force_mpx_mode >= 0 || force_mpx_mode < MPX_NUM_MODES)
374                 t->mpxmode = force_mpx_mode;
375         else
376                 t->mpxmode = default_mpx_mode;
377         printk(KERN_DEBUG "wis-sony-tuner: setting MPX to mode %d\n",
378                         t->mpxmode);
379         mpx_setup(client);
380
381         return 0;
382 }
383
384 static int tuner_command(struct i2c_client *client, unsigned int cmd, void *arg)
385 {
386         struct wis_sony_tuner *t = i2c_get_clientdata(client);
387
388         switch (cmd) {
389 #ifdef TUNER_SET_TYPE_ADDR
390         case TUNER_SET_TYPE_ADDR:
391         {
392                 struct tuner_setup *tun_setup = arg;
393                 int *type = &tun_setup->type;
394 #else
395         case TUNER_SET_TYPE:
396         {
397                 int *type = arg;
398 #endif
399
400                 if (t->type >= 0) {
401                         if (t->type != *type)
402                                 printk(KERN_ERR "wis-sony-tuner: type already "
403                                         "set to %d, ignoring request for %d\n",
404                                         t->type, *type);
405                         break;
406                 }
407                 t->type = *type;
408                 switch (t->type) {
409                 case TUNER_SONY_BTF_PG472Z:
410                         switch (force_band_str[0]) {
411                         case 'b':
412                         case 'B':
413                         case 'g':
414                         case 'G':
415                                 printk(KERN_INFO "wis-sony-tuner: forcing "
416                                                 "tuner to PAL-B/G bands\n");
417                                 force_band = V4L2_STD_PAL_BG;
418                                 break;
419                         case 'i':
420                         case 'I':
421                                 printk(KERN_INFO "wis-sony-tuner: forcing "
422                                                 "tuner to PAL-I band\n");
423                                 force_band = V4L2_STD_PAL_I;
424                                 break;
425                         case 'd':
426                         case 'D':
427                         case 'k':
428                         case 'K':
429                                 printk(KERN_INFO "wis-sony-tuner: forcing "
430                                                 "tuner to PAL-D/K bands\n");
431                                 force_band = V4L2_STD_PAL_I;
432                                 break;
433                         case 'l':
434                         case 'L':
435                                 printk(KERN_INFO "wis-sony-tuner: forcing "
436                                                 "tuner to SECAM-L band\n");
437                                 force_band = V4L2_STD_SECAM_L;
438                                 break;
439                         default:
440                                 force_band = 0;
441                                 break;
442                         }
443                         if (force_band)
444                                 t->std = force_band;
445                         else
446                                 t->std = V4L2_STD_PAL_BG;
447                         set_if(client);
448                         break;
449                 case TUNER_SONY_BTF_PK467Z:
450                         t->std = V4L2_STD_NTSC_M_JP;
451                         break;
452                 case TUNER_SONY_BTF_PB463Z:
453                         t->std = V4L2_STD_NTSC_M;
454                         break;
455                 default:
456                         printk(KERN_ERR "wis-sony-tuner: tuner type %d is not "
457                                         "supported by this module\n", *type);
458                         break;
459                 }
460                 if (type >= 0)
461                         printk(KERN_INFO
462                                 "wis-sony-tuner: type set to %d (%s)\n",
463                                 t->type, sony_tuners[t->type - 200].name);
464                 break;
465         }
466         case VIDIOC_G_FREQUENCY:
467         {
468                 struct v4l2_frequency *f = arg;
469
470                 f->frequency = t->freq;
471                 break;
472         }
473         case VIDIOC_S_FREQUENCY:
474         {
475                 struct v4l2_frequency *f = arg;
476
477                 t->freq = f->frequency;
478                 set_freq(client, t->freq);
479                 break;
480         }
481         case VIDIOC_ENUMSTD:
482         {
483                 struct v4l2_standard *std = arg;
484
485                 switch (t->type) {
486                 case TUNER_SONY_BTF_PG472Z:
487                         switch (std->index) {
488                         case 0:
489                                 v4l2_video_std_construct(std,
490                                                 V4L2_STD_PAL_BG, "PAL-B/G");
491                                 break;
492                         case 1:
493                                 v4l2_video_std_construct(std,
494                                                 V4L2_STD_PAL_I, "PAL-I");
495                                 break;
496                         case 2:
497                                 v4l2_video_std_construct(std,
498                                                 V4L2_STD_PAL_DK, "PAL-D/K");
499                                 break;
500                         case 3:
501                                 v4l2_video_std_construct(std,
502                                                 V4L2_STD_SECAM_L, "SECAM-L");
503                                 break;
504                         default:
505                                 std->id = 0; /* hack to indicate EINVAL */
506                                 break;
507                         }
508                         break;
509                 case TUNER_SONY_BTF_PK467Z:
510                         if (std->index != 0) {
511                                 std->id = 0; /* hack to indicate EINVAL */
512                                 break;
513                         }
514                         v4l2_video_std_construct(std,
515                                         V4L2_STD_NTSC_M_JP, "NTSC-J");
516                         break;
517                 case TUNER_SONY_BTF_PB463Z:
518                         if (std->index != 0) {
519                                 std->id = 0; /* hack to indicate EINVAL */
520                                 break;
521                         }
522                         v4l2_video_std_construct(std, V4L2_STD_NTSC_M, "NTSC");
523                         break;
524                 }
525                 break;
526         }
527         case VIDIOC_G_STD:
528         {
529                 v4l2_std_id *std = arg;
530
531                 *std = t->std;
532                 break;
533         }
534         case VIDIOC_S_STD:
535         {
536                 v4l2_std_id *std = arg;
537                 v4l2_std_id old = t->std;
538
539                 switch (t->type) {
540                 case TUNER_SONY_BTF_PG472Z:
541                         if (force_band && (*std & force_band) != *std &&
542                                         *std != V4L2_STD_PAL &&
543                                         *std != V4L2_STD_SECAM) {
544                                 printk(KERN_DEBUG "wis-sony-tuner: ignoring "
545                                                 "requested TV standard in "
546                                                 "favor of force_band value\n");
547                                 t->std = force_band;
548                         } else if (*std & V4L2_STD_PAL_BG) { /* default */
549                                 t->std = V4L2_STD_PAL_BG;
550                         } else if (*std & V4L2_STD_PAL_I) {
551                                 t->std = V4L2_STD_PAL_I;
552                         } else if (*std & V4L2_STD_PAL_DK) {
553                                 t->std = V4L2_STD_PAL_DK;
554                         } else if (*std & V4L2_STD_SECAM_L) {
555                                 t->std = V4L2_STD_SECAM_L;
556                         } else {
557                                 printk(KERN_ERR "wis-sony-tuner: TV standard "
558                                                 "not supported\n");
559                                 *std = 0; /* hack to indicate EINVAL */
560                                 break;
561                         }
562                         if (old != t->std)
563                                 set_if(client);
564                         break;
565                 case TUNER_SONY_BTF_PK467Z:
566                         if (!(*std & V4L2_STD_NTSC_M_JP)) {
567                                 printk(KERN_ERR "wis-sony-tuner: TV standard "
568                                                 "not supported\n");
569                                 *std = 0; /* hack to indicate EINVAL */
570                         }
571                         break;
572                 case TUNER_SONY_BTF_PB463Z:
573                         if (!(*std & V4L2_STD_NTSC_M)) {
574                                 printk(KERN_ERR "wis-sony-tuner: TV standard "
575                                                 "not supported\n");
576                                 *std = 0; /* hack to indicate EINVAL */
577                         }
578                         break;
579                 }
580                 break;
581         }
582         case VIDIOC_QUERYSTD:
583         {
584                 v4l2_std_id *std = arg;
585
586                 switch (t->type) {
587                 case TUNER_SONY_BTF_PG472Z:
588                         if (force_band)
589                                 *std = force_band;
590                         else
591                                 *std = V4L2_STD_PAL_BG | V4L2_STD_PAL_I |
592                                         V4L2_STD_PAL_DK | V4L2_STD_SECAM_L;
593                         break;
594                 case TUNER_SONY_BTF_PK467Z:
595                         *std = V4L2_STD_NTSC_M_JP;
596                         break;
597                 case TUNER_SONY_BTF_PB463Z:
598                         *std = V4L2_STD_NTSC_M;
599                         break;
600                 }
601                 break;
602         }
603         case VIDIOC_G_TUNER:
604         {
605                 struct v4l2_tuner *tun = arg;
606
607                 memset(t, 0, sizeof(*tun));
608                 strcpy(tun->name, "Television");
609                 tun->type = V4L2_TUNER_ANALOG_TV;
610                 tun->rangelow = 0UL; /* does anything use these? */
611                 tun->rangehigh = 0xffffffffUL;
612                 switch (t->type) {
613                 case TUNER_SONY_BTF_PG472Z:
614                         tun->capability = V4L2_TUNER_CAP_NORM |
615                                 V4L2_TUNER_CAP_STEREO | V4L2_TUNER_CAP_LANG1 |
616                                 V4L2_TUNER_CAP_LANG2;
617                         tun->rxsubchans = V4L2_TUNER_SUB_MONO |
618                                 V4L2_TUNER_SUB_STEREO | V4L2_TUNER_SUB_LANG1 |
619                                 V4L2_TUNER_SUB_LANG2;
620                         break;
621                 case TUNER_SONY_BTF_PK467Z:
622                 case TUNER_SONY_BTF_PB463Z:
623                         tun->capability = V4L2_TUNER_CAP_STEREO;
624                         tun->rxsubchans = V4L2_TUNER_SUB_MONO |
625                                                 V4L2_TUNER_SUB_STEREO;
626                         break;
627                 }
628                 tun->audmode = t->audmode;
629                 return 0;
630         }
631         case VIDIOC_S_TUNER:
632         {
633                 struct v4l2_tuner *tun = arg;
634
635                 switch (t->type) {
636                 case TUNER_SONY_BTF_PG472Z:
637                         if (tun->audmode != t->audmode) {
638                                 t->audmode = tun->audmode;
639                                 mpx_setup(client);
640                         }
641                         break;
642                 case TUNER_SONY_BTF_PK467Z:
643                 case TUNER_SONY_BTF_PB463Z:
644                         break;
645                 }
646                 return 0;
647         }
648         default:
649                 break;
650         }
651         return 0;
652 }
653
654 static struct i2c_driver wis_sony_tuner_driver;
655
656 static struct i2c_client wis_sony_tuner_client_templ = {
657         .name           = "Sony TV Tuner (WIS)",
658         .driver         = &wis_sony_tuner_driver,
659 };
660
661 static int wis_sony_tuner_detect(struct i2c_adapter *adapter,
662                                         int addr, int kind)
663 {
664         struct i2c_client *client;
665         struct wis_sony_tuner *t;
666
667         if (!i2c_check_functionality(adapter, I2C_FUNC_SMBUS_I2C_BLOCK))
668                 return 0;
669
670         client = kmalloc(sizeof(struct i2c_client), GFP_KERNEL);
671         if (client == NULL)
672                 return -ENOMEM;
673         memcpy(client, &wis_sony_tuner_client_templ,
674                         sizeof(wis_sony_tuner_client_templ));
675         client->adapter = adapter;
676         client->addr = addr;
677
678         t = kmalloc(sizeof(struct wis_sony_tuner), GFP_KERNEL);
679         if (t == NULL) {
680                 kfree(client);
681                 return -ENOMEM;
682         }
683         t->type = -1;
684         t->freq = 0;
685         t->mpxmode = 0;
686         t->audmode = V4L2_TUNER_MODE_STEREO;
687         i2c_set_clientdata(client, t);
688
689         printk(KERN_DEBUG
690                 "wis-sony-tuner: initializing tuner at address %d on %s\n",
691                 addr, adapter->name);
692
693         i2c_attach_client(client);
694
695         return 0;
696 }
697
698 static int wis_sony_tuner_detach(struct i2c_client *client)
699 {
700         struct wis_sony_tuner *t = i2c_get_clientdata(client);
701         int r;
702
703         r = i2c_detach_client(client);
704         if (r < 0)
705                 return r;
706
707         kfree(t);
708         kfree(client);
709         return 0;
710 }
711
712 static struct i2c_driver wis_sony_tuner_driver = {
713         .driver = {
714                 .name   = "WIS Sony TV Tuner I2C driver",
715         },
716         .id             = I2C_DRIVERID_WIS_SONY_TUNER,
717         .detach_client  = wis_sony_tuner_detach,
718         .command        = tuner_command,
719 };
720
721 static int __init wis_sony_tuner_init(void)
722 {
723         int r;
724
725         r = i2c_add_driver(&wis_sony_tuner_driver);
726         if (r < 0)
727                 return r;
728         return wis_i2c_add_driver(wis_sony_tuner_driver.id,
729                                         wis_sony_tuner_detect);
730 }
731
732 static void __exit wis_sony_tuner_cleanup(void)
733 {
734         wis_i2c_del_driver(wis_sony_tuner_detect);
735         i2c_del_driver(&wis_sony_tuner_driver);
736 }
737
738 module_init(wis_sony_tuner_init);
739 module_exit(wis_sony_tuner_cleanup);
740
741 MODULE_LICENSE("GPL v2");