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Linus Torvalds1da177e2005-04-16 15:20:36 -07001/*
Linus Torvalds1da177e2005-04-16 15:20:36 -07002 *
3 * i2c tv tuner chip device driver
4 * controls all those simple 4-control-bytes style tuners.
5 */
6#include <linux/delay.h>
7#include <linux/i2c.h>
8#include <linux/videodev.h>
9#include <media/tuner.h>
10
Mauro Carvalho Chehab5c07db02006-01-09 15:25:11 -020011static int offset = 0;
12module_param(offset, int, 0666);
13MODULE_PARM_DESC(offset,"Allows to specify an offset for tuner");
14
Linus Torvalds1da177e2005-04-16 15:20:36 -070015/* ---------------------------------------------------------------------- */
16
17/* tv standard selection for Temic 4046 FM5
18 this value takes the low bits of control byte 2
19 from datasheet Rev.01, Feb.00
20 standard BG I L L2 D
21 picture IF 38.9 38.9 38.9 33.95 38.9
22 sound 1 33.4 32.9 32.4 40.45 32.4
23 sound 2 33.16
24 NICAM 33.05 32.348 33.05 33.05
25 */
26#define TEMIC_SET_PAL_I 0x05
27#define TEMIC_SET_PAL_DK 0x09
28#define TEMIC_SET_PAL_L 0x0a // SECAM ?
29#define TEMIC_SET_PAL_L2 0x0b // change IF !
30#define TEMIC_SET_PAL_BG 0x0c
31
32/* tv tuner system standard selection for Philips FQ1216ME
33 this value takes the low bits of control byte 2
34 from datasheet "1999 Nov 16" (supersedes "1999 Mar 23")
35 standard BG DK I L L`
36 picture carrier 38.90 38.90 38.90 38.90 33.95
37 colour 34.47 34.47 34.47 34.47 38.38
38 sound 1 33.40 32.40 32.90 32.40 40.45
39 sound 2 33.16 - - - -
40 NICAM 33.05 33.05 32.35 33.05 39.80
41 */
42#define PHILIPS_SET_PAL_I 0x01 /* Bit 2 always zero !*/
43#define PHILIPS_SET_PAL_BGDK 0x09
44#define PHILIPS_SET_PAL_L2 0x0a
45#define PHILIPS_SET_PAL_L 0x0b
46
47/* system switching for Philips FI1216MF MK2
48 from datasheet "1996 Jul 09",
49 standard BG L L'
50 picture carrier 38.90 38.90 33.95
51 colour 34.47 34.37 38.38
52 sound 1 33.40 32.40 40.45
53 sound 2 33.16 - -
54 NICAM 33.05 33.05 39.80
55 */
56#define PHILIPS_MF_SET_BG 0x01 /* Bit 2 must be zero, Bit 3 is system output */
57#define PHILIPS_MF_SET_PAL_L 0x03 // France
58#define PHILIPS_MF_SET_PAL_L2 0x02 // L'
59
Mauro Carvalho Chehabf7ce3cc2005-07-12 13:58:55 -070060/* Control byte */
61
62#define TUNER_RATIO_MASK 0x06 /* Bit cb1:cb2 */
63#define TUNER_RATIO_SELECT_50 0x00
64#define TUNER_RATIO_SELECT_32 0x02
65#define TUNER_RATIO_SELECT_166 0x04
66#define TUNER_RATIO_SELECT_62 0x06
67
68#define TUNER_CHARGE_PUMP 0x40 /* Bit cb6 */
69
70/* Status byte */
71
72#define TUNER_POR 0x80
73#define TUNER_FL 0x40
74#define TUNER_MODE 0x38
75#define TUNER_AFC 0x07
76#define TUNER_SIGNAL 0x07
77#define TUNER_STEREO 0x10
78
79#define TUNER_PLL_LOCKED 0x40
80#define TUNER_STEREO_MK3 0x04
Linus Torvalds1da177e2005-04-16 15:20:36 -070081
Michael Krufky7b0ac9c2006-01-13 14:10:25 -020082#define TUNER_PARAM_ANALOG 0 /* to be removed */
83/* FIXME:
84 * Right now, all tuners are using the first tuner_params[] array element
85 * for analog mode. In the future, we will be merging similar tuner
86 * definitions together, such that each tuner definition will have a
87 * tuner_params struct for each available video standard. At that point,
88 * TUNER_PARAM_ANALOG will be removed, and the tuner_params[] array
89 * element will be chosen based on the video standard in use.
90 *
Linus Torvalds1da177e2005-04-16 15:20:36 -070091 */
Linus Torvalds1da177e2005-04-16 15:20:36 -070092
93/* ---------------------------------------------------------------------- */
94
95static int tuner_getstatus(struct i2c_client *c)
96{
97 unsigned char byte;
98
99 if (1 != i2c_master_recv(c,&byte,1))
100 return 0;
Mauro Carvalho Chehab56fc08c2005-06-23 22:05:07 -0700101
Linus Torvalds1da177e2005-04-16 15:20:36 -0700102 return byte;
103}
104
Linus Torvalds1da177e2005-04-16 15:20:36 -0700105static int tuner_signal(struct i2c_client *c)
106{
Mauro Carvalho Chehab56fc08c2005-06-23 22:05:07 -0700107 return (tuner_getstatus(c) & TUNER_SIGNAL) << 13;
Linus Torvalds1da177e2005-04-16 15:20:36 -0700108}
109
110static int tuner_stereo(struct i2c_client *c)
111{
Mauro Carvalho Chehab56fc08c2005-06-23 22:05:07 -0700112 int stereo, status;
113 struct tuner *t = i2c_get_clientdata(c);
114
115 status = tuner_getstatus (c);
116
117 switch (t->type) {
Mauro Carvalho Chehab4ac97912005-11-08 21:37:43 -0800118 case TUNER_PHILIPS_FM1216ME_MK3:
Mauro Carvalho Chehab56fc08c2005-06-23 22:05:07 -0700119 case TUNER_PHILIPS_FM1236_MK3:
120 case TUNER_PHILIPS_FM1256_IH3:
121 stereo = ((status & TUNER_SIGNAL) == TUNER_STEREO_MK3);
122 break;
123 default:
124 stereo = status & TUNER_STEREO;
125 }
126
127 return stereo;
Linus Torvalds1da177e2005-04-16 15:20:36 -0700128}
129
Linus Torvalds1da177e2005-04-16 15:20:36 -0700130
131/* ---------------------------------------------------------------------- */
132
133static void default_set_tv_freq(struct i2c_client *c, unsigned int freq)
134{
135 struct tuner *t = i2c_get_clientdata(c);
Michael Krufkyf4372be2005-11-08 21:38:19 -0800136 u8 config, tuneraddr;
Linus Torvalds1da177e2005-04-16 15:20:36 -0700137 u16 div;
138 struct tunertype *tun;
Hans Verkuil27487d42006-01-15 15:04:52 -0200139 u8 buffer[4];
Michael Krufky7b0ac9c2006-01-13 14:10:25 -0200140 int rc, IFPCoff, i, j;
Linus Torvalds1da177e2005-04-16 15:20:36 -0700141
142 tun = &tuners[t->type];
Michael Krufky7b0ac9c2006-01-13 14:10:25 -0200143 j = TUNER_PARAM_ANALOG;
144
145 for (i = 0; i < tun->params[j].count; i++) {
146 if (freq > tun->params[j].ranges[i].limit)
Michael Krufky90200d22006-01-09 15:25:38 -0200147 continue;
148 break;
Linus Torvalds1da177e2005-04-16 15:20:36 -0700149 }
Hans Verkuil27487d42006-01-15 15:04:52 -0200150 if (i == tun->params[j].count) {
151 tuner_dbg("TV frequency out of range (%d > %d)",
152 freq, tun->params[j].ranges[i - 1].limit);
153 freq = tun->params[j].ranges[--i].limit;
154 }
Michael Krufky7b0ac9c2006-01-13 14:10:25 -0200155 config = tun->params[j].ranges[i].cb;
Michael Krufky90200d22006-01-09 15:25:38 -0200156 /* i == 0 -> VHF_LO */
157 /* i == 1 -> VHF_HI */
158 /* i == 2 -> UHF */
159 tuner_dbg("tv: range %d\n",i);
Linus Torvalds1da177e2005-04-16 15:20:36 -0700160
161 /* tv norm specific stuff for multi-norm tuners */
162 switch (t->type) {
163 case TUNER_PHILIPS_SECAM: // FI1216MF
164 /* 0x01 -> ??? no change ??? */
165 /* 0x02 -> PAL BDGHI / SECAM L */
166 /* 0x04 -> ??? PAL others / SECAM others ??? */
167 config &= ~0x02;
168 if (t->std & V4L2_STD_SECAM)
169 config |= 0x02;
170 break;
171
172 case TUNER_TEMIC_4046FM5:
173 config &= ~0x0f;
174
175 if (t->std & V4L2_STD_PAL_BG) {
176 config |= TEMIC_SET_PAL_BG;
177
178 } else if (t->std & V4L2_STD_PAL_I) {
179 config |= TEMIC_SET_PAL_I;
180
181 } else if (t->std & V4L2_STD_PAL_DK) {
182 config |= TEMIC_SET_PAL_DK;
183
184 } else if (t->std & V4L2_STD_SECAM_L) {
185 config |= TEMIC_SET_PAL_L;
186
187 }
188 break;
189
190 case TUNER_PHILIPS_FQ1216ME:
191 config &= ~0x0f;
192
193 if (t->std & (V4L2_STD_PAL_BG|V4L2_STD_PAL_DK)) {
194 config |= PHILIPS_SET_PAL_BGDK;
195
196 } else if (t->std & V4L2_STD_PAL_I) {
197 config |= PHILIPS_SET_PAL_I;
198
199 } else if (t->std & V4L2_STD_SECAM_L) {
200 config |= PHILIPS_SET_PAL_L;
201
202 }
203 break;
204
205 case TUNER_PHILIPS_ATSC:
206 /* 0x00 -> ATSC antenna input 1 */
207 /* 0x01 -> ATSC antenna input 2 */
208 /* 0x02 -> NTSC antenna input 1 */
209 /* 0x03 -> NTSC antenna input 2 */
210 config &= ~0x03;
211 if (!(t->std & V4L2_STD_ATSC))
212 config |= 2;
213 /* FIXME: input */
214 break;
215
216 case TUNER_MICROTUNE_4042FI5:
217 /* Set the charge pump for fast tuning */
Michael Krufky7b0ac9c2006-01-13 14:10:25 -0200218 tun->params[j].config |= TUNER_CHARGE_PUMP;
Linus Torvalds1da177e2005-04-16 15:20:36 -0700219 break;
Kirk Lapraye976f9372005-11-08 21:37:04 -0800220
221 case TUNER_PHILIPS_TUV1236D:
222 /* 0x40 -> ATSC antenna input 1 */
223 /* 0x48 -> ATSC antenna input 2 */
224 /* 0x00 -> NTSC antenna input 1 */
225 /* 0x08 -> NTSC antenna input 2 */
Kirk Laprayfde6d312005-11-08 21:38:18 -0800226 buffer[0] = 0x14;
227 buffer[1] = 0x00;
228 buffer[2] = 0x17;
229 buffer[3] = 0x00;
Kirk Lapraye976f9372005-11-08 21:37:04 -0800230 config &= ~0x40;
Kirk Laprayfde6d312005-11-08 21:38:18 -0800231 if (t->std & V4L2_STD_ATSC) {
Kirk Lapraye976f9372005-11-08 21:37:04 -0800232 config |= 0x40;
Kirk Laprayfde6d312005-11-08 21:38:18 -0800233 buffer[1] = 0x04;
234 }
235 /* set to the correct mode (analog or digital) */
Kirk Laprayfde6d312005-11-08 21:38:18 -0800236 tuneraddr = c->addr;
237 c->addr = 0x0a;
238 if (2 != (rc = i2c_master_send(c,&buffer[0],2)))
239 tuner_warn("i2c i/o error: rc == %d (should be 2)\n",rc);
240 if (2 != (rc = i2c_master_send(c,&buffer[2],2)))
241 tuner_warn("i2c i/o error: rc == %d (should be 2)\n",rc);
242 c->addr = tuneraddr;
Kirk Lapraye976f9372005-11-08 21:37:04 -0800243 /* FIXME: input */
244 break;
Linus Torvalds1da177e2005-04-16 15:20:36 -0700245 }
246
Mauro Carvalho Chehab1faf11a2006-01-09 15:25:03 -0200247 /* IFPCoff = Video Intermediate Frequency - Vif:
248 940 =16*58.75 NTSC/J (Japan)
249 732 =16*45.75 M/N STD
250 704 =16*44 ATSC (at DVB code)
251 632 =16*39.50 I U.K.
252 622.4=16*38.90 B/G D/K I, L STD
253 592 =16*37.00 D China
254 590 =16.36.875 B Australia
255 543.2=16*33.95 L' STD
256 171.2=16*10.70 FM Radio (at set_radio_freq)
257 */
258
Hans Verkuila1789d32006-01-09 15:25:19 -0200259 if (t->std == V4L2_STD_NTSC_M_JP) {
Mauro Carvalho Chehab1faf11a2006-01-09 15:25:03 -0200260 IFPCoff = 940;
Hans Verkuila1789d32006-01-09 15:25:19 -0200261 } else if ((t->std & V4L2_STD_MN) &&
262 !(t->std & ~V4L2_STD_MN)) {
Mauro Carvalho Chehab1faf11a2006-01-09 15:25:03 -0200263 IFPCoff = 732;
Hans Verkuila1789d32006-01-09 15:25:19 -0200264 } else if (t->std == V4L2_STD_SECAM_LC) {
Mauro Carvalho Chehab1faf11a2006-01-09 15:25:03 -0200265 IFPCoff = 543;
266 } else {
267 IFPCoff = 623;
268 }
269
Mauro Carvalho Chehab5c07db02006-01-09 15:25:11 -0200270 div=freq + IFPCoff + offset;
Mauro Carvalho Chehabf5b90a22006-01-09 15:25:12 -0200271
272 tuner_dbg("Freq= %d.%02d MHz, V_IF=%d.%02d MHz, Offset=%d.%02d MHz, div=%0d\n",
273 freq / 16, freq % 16 * 100 / 16,
274 IFPCoff / 16, IFPCoff % 16 * 100 / 16,
275 offset / 16, offset % 16 * 100 / 16,
276 div);
277
Hans Verkuil27487d42006-01-15 15:04:52 -0200278 if (tuners[t->type].params->cb_first_if_lower_freq && div < t->last_div) {
Michael Krufky7b0ac9c2006-01-13 14:10:25 -0200279 buffer[0] = tun->params[j].config;
Linus Torvalds1da177e2005-04-16 15:20:36 -0700280 buffer[1] = config;
281 buffer[2] = (div>>8) & 0x7f;
282 buffer[3] = div & 0xff;
283 } else {
284 buffer[0] = (div>>8) & 0x7f;
285 buffer[1] = div & 0xff;
Michael Krufky7b0ac9c2006-01-13 14:10:25 -0200286 buffer[2] = tun->params[j].config;
Linus Torvalds1da177e2005-04-16 15:20:36 -0700287 buffer[3] = config;
288 }
Hans Verkuil27487d42006-01-15 15:04:52 -0200289 t->last_div = div;
Linus Torvalds1da177e2005-04-16 15:20:36 -0700290 tuner_dbg("tv 0x%02x 0x%02x 0x%02x 0x%02x\n",
291 buffer[0],buffer[1],buffer[2],buffer[3]);
292
Mauro Carvalho Chehab4ac97912005-11-08 21:37:43 -0800293 if (4 != (rc = i2c_master_send(c,buffer,4)))
Linus Torvalds1da177e2005-04-16 15:20:36 -0700294 tuner_warn("i2c i/o error: rc == %d (should be 4)\n",rc);
295
296 if (t->type == TUNER_MICROTUNE_4042FI5) {
297 // FIXME - this may also work for other tuners
298 unsigned long timeout = jiffies + msecs_to_jiffies(1);
299 u8 status_byte = 0;
300
301 /* Wait until the PLL locks */
302 for (;;) {
303 if (time_after(jiffies,timeout))
304 return;
305 if (1 != (rc = i2c_master_recv(c,&status_byte,1))) {
306 tuner_warn("i2c i/o read error: rc == %d (should be 1)\n",rc);
307 break;
308 }
Mauro Carvalho Chehabf7ce3cc2005-07-12 13:58:55 -0700309 if (status_byte & TUNER_PLL_LOCKED)
Linus Torvalds1da177e2005-04-16 15:20:36 -0700310 break;
311 udelay(10);
312 }
313
314 /* Set the charge pump for optimized phase noise figure */
Michael Krufky7b0ac9c2006-01-13 14:10:25 -0200315 tun->params[j].config &= ~TUNER_CHARGE_PUMP;
Linus Torvalds1da177e2005-04-16 15:20:36 -0700316 buffer[0] = (div>>8) & 0x7f;
317 buffer[1] = div & 0xff;
Michael Krufky7b0ac9c2006-01-13 14:10:25 -0200318 buffer[2] = tun->params[j].config;
Linus Torvalds1da177e2005-04-16 15:20:36 -0700319 buffer[3] = config;
320 tuner_dbg("tv 0x%02x 0x%02x 0x%02x 0x%02x\n",
321 buffer[0],buffer[1],buffer[2],buffer[3]);
322
323 if (4 != (rc = i2c_master_send(c,buffer,4)))
324 tuner_warn("i2c i/o error: rc == %d (should be 4)\n",rc);
325 }
326}
327
328static void default_set_radio_freq(struct i2c_client *c, unsigned int freq)
329{
330 struct tunertype *tun;
331 struct tuner *t = i2c_get_clientdata(c);
Hans Verkuil27487d42006-01-15 15:04:52 -0200332 u8 buffer[4];
333 u16 div;
Michael Krufky7b0ac9c2006-01-13 14:10:25 -0200334 int rc, j;
Linus Torvalds1da177e2005-04-16 15:20:36 -0700335
Mauro Carvalho Chehabf7ce3cc2005-07-12 13:58:55 -0700336 tun = &tuners[t->type];
Michael Krufky7b0ac9c2006-01-13 14:10:25 -0200337 j = TUNER_PARAM_ANALOG;
338
Mauro Carvalho Chehabf7ce3cc2005-07-12 13:58:55 -0700339 div = (20 * freq / 16000) + (int)(20*10.7); /* IF 10.7 MHz */
Michael Krufky7b0ac9c2006-01-13 14:10:25 -0200340 buffer[2] = (tun->params[j].config & ~TUNER_RATIO_MASK) | TUNER_RATIO_SELECT_50; /* 50 kHz step */
Linus Torvalds1da177e2005-04-16 15:20:36 -0700341
342 switch (t->type) {
Mauro Carvalho Chehab56fc08c2005-06-23 22:05:07 -0700343 case TUNER_TENA_9533_DI:
Mauro Carvalho Chehab391cd722005-06-23 22:02:43 -0700344 case TUNER_YMEC_TVF_5533MF:
Mauro Carvalho Chehabf7ce3cc2005-07-12 13:58:55 -0700345 tuner_dbg ("This tuner doesn't have FM. Most cards has a TEA5767 for FM\n");
346 return;
Linus Torvalds1da177e2005-04-16 15:20:36 -0700347 case TUNER_PHILIPS_FM1216ME_MK3:
348 case TUNER_PHILIPS_FM1236_MK3:
Mauro Carvalho Chehab586b0ca2005-06-28 20:45:21 -0700349 case TUNER_PHILIPS_FMD1216ME_MK3:
Linus Torvalds1da177e2005-04-16 15:20:36 -0700350 buffer[3] = 0x19;
351 break;
352 case TUNER_PHILIPS_FM1256_IH3:
Mauro Carvalho Chehabf7ce3cc2005-07-12 13:58:55 -0700353 div = (20 * freq) / 16000 + (int)(33.3 * 20); /* IF 33.3 MHz */
Linus Torvalds1da177e2005-04-16 15:20:36 -0700354 buffer[3] = 0x19;
355 break;
356 case TUNER_LG_PAL_FM:
357 buffer[3] = 0xa5;
358 break;
Mauro Carvalho Chehab33ac6b52005-09-09 13:03:56 -0700359 case TUNER_MICROTUNE_4049FM5:
360 div = (20 * freq) / 16000 + (int)(33.3 * 20); /* IF 33.3 MHz */
361 buffer[3] = 0xa4;
362 break;
Linus Torvalds1da177e2005-04-16 15:20:36 -0700363 default:
364 buffer[3] = 0xa4;
365 break;
366 }
Mauro Carvalho Chehab4ac97912005-11-08 21:37:43 -0800367 buffer[0] = (div>>8) & 0x7f;
368 buffer[1] = div & 0xff;
Hans Verkuil27487d42006-01-15 15:04:52 -0200369 if (tuners[t->type].params->cb_first_if_lower_freq && div < t->last_div) {
370 buffer[0] = buffer[2];
371 buffer[1] = buffer[3];
372 buffer[2] = (div>>8) & 0x7f;
373 buffer[3] = div & 0xff;
374 } else {
375 buffer[0] = (div>>8) & 0x7f;
376 buffer[1] = div & 0xff;
377 }
Linus Torvalds1da177e2005-04-16 15:20:36 -0700378
379 tuner_dbg("radio 0x%02x 0x%02x 0x%02x 0x%02x\n",
380 buffer[0],buffer[1],buffer[2],buffer[3]);
Hans Verkuil27487d42006-01-15 15:04:52 -0200381 t->last_div = div;
Linus Torvalds1da177e2005-04-16 15:20:36 -0700382
Mauro Carvalho Chehab4ac97912005-11-08 21:37:43 -0800383 if (4 != (rc = i2c_master_send(c,buffer,4)))
Linus Torvalds1da177e2005-04-16 15:20:36 -0700384 tuner_warn("i2c i/o error: rc == %d (should be 4)\n",rc);
385}
386
387int default_tuner_init(struct i2c_client *c)
388{
389 struct tuner *t = i2c_get_clientdata(c);
390
391 tuner_info("type set to %d (%s)\n",
392 t->type, tuners[t->type].name);
393 strlcpy(c->name, tuners[t->type].name, sizeof(c->name));
394
Hans Verkuil27487d42006-01-15 15:04:52 -0200395 t->set_tv_freq = default_set_tv_freq;
396 t->set_radio_freq = default_set_radio_freq;
Linus Torvalds1da177e2005-04-16 15:20:36 -0700397 t->has_signal = tuner_signal;
Hans Verkuil27487d42006-01-15 15:04:52 -0200398 t->is_stereo = tuner_stereo;
Mauro Carvalho Chehab793cf9e2005-09-09 13:03:37 -0700399 t->standby = NULL;
Mauro Carvalho Chehab586b0ca2005-06-28 20:45:21 -0700400
Linus Torvalds1da177e2005-04-16 15:20:36 -0700401 return 0;
402}
403
404/*
405 * Overrides for Emacs so that we follow Linus's tabbing style.
406 * ---------------------------------------------------------------------------
407 * Local variables:
408 * c-basic-offset: 8
409 * End:
410 */