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allow coexistance of N build and AC build.
[tomato.git] / release / src-rt-6.x / linux / linux-2.6 / drivers / media / video / tda8290.c
blob1a1bef0e9c3dcf65ad5314b2952fc238ac6a5682
1 /*
2
3 i2c tv tuner chip device driver
4 controls the philips tda8290+75 tuner chip combo.
5
6 This program is free software; you can redistribute it and/or modify
7 it under the terms of the GNU General Public License as published by
8 the Free Software Foundation; either version 2 of the License, or
9 (at your option) any later version.
10
11 This program is distributed in the hope that it will be useful,
12 but WITHOUT ANY WARRANTY; without even the implied warranty of
13 MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
14 GNU General Public License for more details.
15
16 You should have received a copy of the GNU General Public License
17 along with this program; if not, write to the Free Software
18 Foundation, Inc., 675 Mass Ave, Cambridge, MA 02139, USA.
19 */
20
21 #include <linux/i2c.h>
22 #include <linux/videodev.h>
23 #include <linux/delay.h>
24 #include <media/tuner.h>
25
26 /* ---------------------------------------------------------------------- */
27
28 struct tda827x_data {
29 u32 lomax;
30 u8 spd;
31 u8 bs;
32 u8 bp;
33 u8 cp;
34 u8 gc3;
35 u8 div1p5;
36 };
37
38 /* Note lomax entry is lo / 62500 */
39
40 static struct tda827x_data tda827x_analog[] = {
41 { .lomax = 992, .spd = 3, .bs = 2, .bp = 0, .cp = 0, .gc3 = 3, .div1p5 = 1}, /* 62 MHz */
42 { .lomax = 1056, .spd = 3, .bs = 3, .bp = 0, .cp = 0, .gc3 = 3, .div1p5 = 1}, /* 66 MHz */
43 { .lomax = 1216, .spd = 3, .bs = 1, .bp = 0, .cp = 0, .gc3 = 3, .div1p5 = 0}, /* 76 MHz */
44 { .lomax = 1344, .spd = 3, .bs = 2, .bp = 0, .cp = 0, .gc3 = 3, .div1p5 = 0}, /* 84 MHz */
45 { .lomax = 1488, .spd = 3, .bs = 2, .bp = 0, .cp = 0, .gc3 = 1, .div1p5 = 0}, /* 93 MHz */
46 { .lomax = 1568, .spd = 3, .bs = 3, .bp = 0, .cp = 0, .gc3 = 1, .div1p5 = 0}, /* 98 MHz */
47 { .lomax = 1744, .spd = 3, .bs = 3, .bp = 1, .cp = 0, .gc3 = 1, .div1p5 = 0}, /* 109 MHz */
48 { .lomax = 1968, .spd = 2, .bs = 2, .bp = 1, .cp = 0, .gc3 = 1, .div1p5 = 1}, /* 123 MHz */
49 { .lomax = 2128, .spd = 2, .bs = 3, .bp = 1, .cp = 0, .gc3 = 1, .div1p5 = 1}, /* 133 MHz */
50 { .lomax = 2416, .spd = 2, .bs = 1, .bp = 1, .cp = 0, .gc3 = 1, .div1p5 = 0}, /* 151 MHz */
51 { .lomax = 2464, .spd = 2, .bs = 2, .bp = 1, .cp = 0, .gc3 = 1, .div1p5 = 0}, /* 154 MHz */
52 { .lomax = 2896, .spd = 2, .bs = 2, .bp = 1, .cp = 0, .gc3 = 0, .div1p5 = 0}, /* 181 MHz */
53 { .lomax = 2960, .spd = 2, .bs = 2, .bp = 2, .cp = 0, .gc3 = 1, .div1p5 = 0}, /* 185 MHz */
54 { .lomax = 3472, .spd = 2, .bs = 3, .bp = 2, .cp = 0, .gc3 = 1, .div1p5 = 0}, /* 217 MHz */
55 { .lomax = 3904, .spd = 1, .bs = 2, .bp = 2, .cp = 0, .gc3 = 1, .div1p5 = 1}, /* 244 MHz */
56 { .lomax = 4240, .spd = 1, .bs = 3, .bp = 2, .cp = 0, .gc3 = 1, .div1p5 = 1}, /* 265 MHz */
57 { .lomax = 4832, .spd = 1, .bs = 1, .bp = 2, .cp = 0, .gc3 = 1, .div1p5 = 0}, /* 302 MHz */
58 { .lomax = 5184, .spd = 1, .bs = 2, .bp = 2, .cp = 0, .gc3 = 1, .div1p5 = 0}, /* 324 MHz */
59 { .lomax = 5920, .spd = 1, .bs = 2, .bp = 3, .cp = 0, .gc3 = 1, .div1p5 = 0}, /* 370 MHz */
60 { .lomax = 7264, .spd = 1, .bs = 3, .bp = 3, .cp = 0, .gc3 = 1, .div1p5 = 0}, /* 454 MHz */
61 { .lomax = 7888, .spd = 0, .bs = 2, .bp = 3, .cp = 0, .gc3 = 1, .div1p5 = 1}, /* 493 MHz */
62 { .lomax = 8480, .spd = 0, .bs = 3, .bp = 3, .cp = 0, .gc3 = 1, .div1p5 = 1}, /* 530 MHz */
63 { .lomax = 8864, .spd = 0, .bs = 1, .bp = 3, .cp = 0, .gc3 = 1, .div1p5 = 0}, /* 554 MHz */
64 { .lomax = 9664, .spd = 0, .bs = 1, .bp = 4, .cp = 0, .gc3 = 0, .div1p5 = 0}, /* 604 MHz */
65 { .lomax = 11088, .spd = 0, .bs = 2, .bp = 4, .cp = 0, .gc3 = 0, .div1p5 = 0}, /* 696 MHz */
66 { .lomax = 11840, .spd = 0, .bs = 2, .bp = 4, .cp = 1, .gc3 = 0, .div1p5 = 0}, /* 740 MHz */
67 { .lomax = 13120, .spd = 0, .bs = 3, .bp = 4, .cp = 0, .gc3 = 0, .div1p5 = 0}, /* 820 MHz */
68 { .lomax = 13840, .spd = 0, .bs = 3, .bp = 4, .cp = 1, .gc3 = 0, .div1p5 = 0}, /* 865 MHz */
69 { .lomax = 0, .spd = 0, .bs = 0, .bp = 0, .cp = 0, .gc3 = 0, .div1p5 = 0} /* End */
70 };
71
72 static void tda827x_tune(struct i2c_client *c, u16 ifc, unsigned int freq)
73 {
74 unsigned char tuner_reg[8];
75 unsigned char reg2[2];
76 u32 N;
77 int i;
78 struct tuner *t = i2c_get_clientdata(c);
79 struct i2c_msg msg = {.addr = t->tda827x_addr, .flags = 0};
80
81 if (t->mode == V4L2_TUNER_RADIO)
82 freq = freq / 1000;
83
84 N = freq + ifc;
85 i = 0;
86 while (tda827x_analog[i].lomax < N) {
87 if(tda827x_analog[i + 1].lomax == 0)
88 break;
89 i++;
90 }
91
92 N = N << tda827x_analog[i].spd;
93
94 tuner_reg[0] = 0;
95 tuner_reg[1] = (unsigned char)(N>>8);
96 tuner_reg[2] = (unsigned char) N;
97 tuner_reg[3] = 0x40;
98 tuner_reg[4] = 0x52 + (t->tda827x_lpsel << 5);
99 tuner_reg[5] = (tda827x_analog[i].spd << 6) + (tda827x_analog[i].div1p5 <<5) +
100 (tda827x_analog[i].bs <<3) + tda827x_analog[i].bp;
101 tuner_reg[6] = 0x8f + (tda827x_analog[i].gc3 << 4);
102 tuner_reg[7] = 0x8f;
103
104 msg.buf = tuner_reg;
105 msg.len = 8;
106 i2c_transfer(c->adapter, &msg, 1);
107
108 msg.buf= reg2;
109 msg.len = 2;
110 reg2[0] = 0x80;
111 reg2[1] = 0;
112 i2c_transfer(c->adapter, &msg, 1);
113
114 reg2[0] = 0x60;
115 reg2[1] = 0xbf;
116 i2c_transfer(c->adapter, &msg, 1);
117
118 reg2[0] = 0x30;
119 reg2[1] = tuner_reg[4] + 0x80;
120 i2c_transfer(c->adapter, &msg, 1);
121
122 msleep(1);
123 reg2[0] = 0x30;
124 reg2[1] = tuner_reg[4] + 4;
125 i2c_transfer(c->adapter, &msg, 1);
126
127 msleep(1);
128 reg2[0] = 0x30;
129 reg2[1] = tuner_reg[4];
130 i2c_transfer(c->adapter, &msg, 1);
131
132 msleep(550);
133 reg2[0] = 0x30;
134 reg2[1] = (tuner_reg[4] & 0xfc) + tda827x_analog[i].cp ;
135 i2c_transfer(c->adapter, &msg, 1);
136
137 reg2[0] = 0x60;
138 reg2[1] = 0x3f;
139 i2c_transfer(c->adapter, &msg, 1);
140
141 reg2[0] = 0x80;
142 reg2[1] = 0x08; // Vsync en
143 i2c_transfer(c->adapter, &msg, 1);
144 }
145
146 static void tda827x_agcf(struct i2c_client *c)
147 {
148 struct tuner *t = i2c_get_clientdata(c);
149 unsigned char data[] = {0x80, 0x0c};
150 struct i2c_msg msg = {.addr = t->tda827x_addr, .buf = data,
151 .flags = 0, .len = 2};
152 i2c_transfer(c->adapter, &msg, 1);
153 }
154
155 /* ---------------------------------------------------------------------- */
156
157 struct tda827xa_data {
158 u32 lomax;
159 u8 svco;
160 u8 spd;
161 u8 scr;
162 u8 sbs;
163 u8 gc3;
164 };
165
166 static struct tda827xa_data tda827xa_analog[] = {
167 { .lomax = 910, .svco = 3, .spd = 4, .scr = 0, .sbs = 0, .gc3 = 3}, /* 56.875 MHz */
168 { .lomax = 1076, .svco = 0, .spd = 3, .scr = 0, .sbs = 0, .gc3 = 3}, /* 67.25 MHz */
169 { .lomax = 1300, .svco = 1, .spd = 3, .scr = 0, .sbs = 0, .gc3 = 3}, /* 81.25 MHz */
170 { .lomax = 1560, .svco = 2, .spd = 3, .scr = 0, .sbs = 0, .gc3 = 3}, /* 97.5 MHz */
171 { .lomax = 1820, .svco = 3, .spd = 3, .scr = 0, .sbs = 1, .gc3 = 1}, /* 113.75 MHz */
172 { .lomax = 2152, .svco = 0, .spd = 2, .scr = 0, .sbs = 1, .gc3 = 1}, /* 134.5 MHz */
173 { .lomax = 2464, .svco = 1, .spd = 2, .scr = 0, .sbs = 1, .gc3 = 1}, /* 154 MHz */
174 { .lomax = 2600, .svco = 1, .spd = 2, .scr = 0, .sbs = 1, .gc3 = 1}, /* 162.5 MHz */
175 { .lomax = 2928, .svco = 2, .spd = 2, .scr = 0, .sbs = 1, .gc3 = 1}, /* 183 MHz */
176 { .lomax = 3120, .svco = 2, .spd = 2, .scr = 0, .sbs = 2, .gc3 = 1}, /* 195 MHz */
177 { .lomax = 3640, .svco = 3, .spd = 2, .scr = 0, .sbs = 2, .gc3 = 3}, /* 227.5 MHz */
178 { .lomax = 4304, .svco = 0, .spd = 1, .scr = 0, .sbs = 2, .gc3 = 3}, /* 269 MHz */
179 { .lomax = 5200, .svco = 1, .spd = 1, .scr = 0, .sbs = 2, .gc3 = 1}, /* 325 MHz */
180 { .lomax = 6240, .svco = 2, .spd = 1, .scr = 0, .sbs = 3, .gc3 = 3}, /* 390 MHz */
181 { .lomax = 7280, .svco = 3, .spd = 1, .scr = 0, .sbs = 3, .gc3 = 3}, /* 455 MHz */
182 { .lomax = 8320, .svco = 0, .spd = 0, .scr = 0, .sbs = 3, .gc3 = 1}, /* 520 MHz */
183 { .lomax = 8608, .svco = 0, .spd = 0, .scr = 1, .sbs = 3, .gc3 = 1}, /* 538 MHz */
184 { .lomax = 8864, .svco = 1, .spd = 0, .scr = 0, .sbs = 3, .gc3 = 1}, /* 554 MHz */
185 { .lomax = 9920, .svco = 1, .spd = 0, .scr = 0, .sbs = 4, .gc3 = 0}, /* 620 MHz */
186 { .lomax = 10400, .svco = 1, .spd = 0, .scr = 1, .sbs = 4, .gc3 = 0}, /* 650 MHz */
187 { .lomax = 11200, .svco = 2, .spd = 0, .scr = 0, .sbs = 4, .gc3 = 0}, /* 700 MHz */
188 { .lomax = 12480, .svco = 2, .spd = 0, .scr = 1, .sbs = 4, .gc3 = 0}, /* 780 MHz */
189 { .lomax = 13120, .svco = 3, .spd = 0, .scr = 0, .sbs = 4, .gc3 = 0}, /* 820 MHz */
190 { .lomax = 13920, .svco = 3, .spd = 0, .scr = 1, .sbs = 4, .gc3 = 0}, /* 870 MHz */
191 { .lomax = 14576, .svco = 3, .spd = 0, .scr = 2, .sbs = 4, .gc3 = 0}, /* 911 MHz */
192 { .lomax = 0, .svco = 0, .spd = 0, .scr = 0, .sbs = 0, .gc3 = 0} /* End */
193 };
194
195 static void tda827xa_lna_gain(struct i2c_client *c, int high)
196 {
197 struct tuner *t = i2c_get_clientdata(c);
198 unsigned char buf[] = {0x22, 0x01};
199 int arg;
200 struct i2c_msg msg = {.addr = c->addr, .flags = 0, .buf = buf, .len = sizeof(buf)};
201 if (t->config) {
202 if (high)
203 tuner_dbg("setting LNA to high gain\n");
204 else
205 tuner_dbg("setting LNA to low gain\n");
206 }
207 switch (t->config) {
208 case 0: /* no LNA */
209 break;
210 case 1: /* switch is GPIO 0 of tda8290 */
211 case 2:
212 /* turn Vsync on */
213 if (t->std & V4L2_STD_MN)
214 arg = 1;
215 else
216 arg = 0;
217 if (t->tuner_callback)
218 t->tuner_callback(c->adapter->algo_data, 1, arg);
219 buf[1] = high ? 0 : 1;
220 if (t->config == 2)
221 buf[1] = high ? 1 : 0;
222 i2c_transfer(c->adapter, &msg, 1);
223 break;
224 case 3: /* switch with GPIO of saa713x */
225 if (t->tuner_callback)
226 t->tuner_callback(c->adapter->algo_data, 0, high);
227 break;
228 }
229 }
230
231 static void tda827xa_tune(struct i2c_client *c, u16 ifc, unsigned int freq)
232 {
233 unsigned char tuner_reg[11];
234 u32 N;
235 int i;
236 struct tuner *t = i2c_get_clientdata(c);
237 struct i2c_msg msg = {.addr = t->tda827x_addr, .flags = 0, .buf = tuner_reg};
238
239 tda827xa_lna_gain( c, 1);
240 msleep(10);
241
242 if (t->mode == V4L2_TUNER_RADIO)
243 freq = freq / 1000;
244
245 N = freq + ifc;
246 i = 0;
247 while (tda827xa_analog[i].lomax < N) {
248 if(tda827xa_analog[i + 1].lomax == 0)
249 break;
250 i++;
251 }
252
253 N = N << tda827xa_analog[i].spd;
254
255 tuner_reg[0] = 0;
256 tuner_reg[1] = (unsigned char)(N>>8);
257 tuner_reg[2] = (unsigned char) N;
258 tuner_reg[3] = 0;
259 tuner_reg[4] = 0x16;
260 tuner_reg[5] = (tda827xa_analog[i].spd << 5) + (tda827xa_analog[i].svco << 3) +
261 tda827xa_analog[i].sbs;
262 tuner_reg[6] = 0x8b + (tda827xa_analog[i].gc3 << 4);
263 tuner_reg[7] = 0x1c;
264 tuner_reg[8] = 4;
265 tuner_reg[9] = 0x20;
266 tuner_reg[10] = 0x00;
267 msg.len = 11;
268 i2c_transfer(c->adapter, &msg, 1);
269
270 tuner_reg[0] = 0x90;
271 tuner_reg[1] = 0xff;
272 tuner_reg[2] = 0xe0;
273 tuner_reg[3] = 0;
274 tuner_reg[4] = 0x99 + (t->tda827x_lpsel << 1);
275 msg.len = 5;
276 i2c_transfer(c->adapter, &msg, 1);
277
278 tuner_reg[0] = 0xa0;
279 tuner_reg[1] = 0xc0;
280 msg.len = 2;
281 i2c_transfer(c->adapter, &msg, 1);
282
283 tuner_reg[0] = 0x30;
284 tuner_reg[1] = 0x10 + tda827xa_analog[i].scr;
285 i2c_transfer(c->adapter, &msg, 1);
286
287 msg.flags = I2C_M_RD;
288 i2c_transfer(c->adapter, &msg, 1);
289 msg.flags = 0;
290 tuner_reg[1] >>= 4;
291 tuner_dbg("AGC2 gain is: %d\n", tuner_reg[1]);
292 if (tuner_reg[1] < 1)
293 tda827xa_lna_gain( c, 0);
294
295 msleep(100);
296 tuner_reg[0] = 0x60;
297 tuner_reg[1] = 0x3c;
298 i2c_transfer(c->adapter, &msg, 1);
299
300 msleep(163);
301 tuner_reg[0] = 0x50;
302 tuner_reg[1] = 0x8f + (tda827xa_analog[i].gc3 << 4);
303 i2c_transfer(c->adapter, &msg, 1);
304
305 tuner_reg[0] = 0x80;
306 tuner_reg[1] = 0x28;
307 i2c_transfer(c->adapter, &msg, 1);
308
309 tuner_reg[0] = 0xb0;
310 tuner_reg[1] = 0x01;
311 i2c_transfer(c->adapter, &msg, 1);
312
313 tuner_reg[0] = 0xc0;
314 tuner_reg[1] = 0x19 + (t->tda827x_lpsel << 1);
315 i2c_transfer(c->adapter, &msg, 1);
316 }
317
318 static void tda827xa_agcf(struct i2c_client *c)
319 {
320 struct tuner *t = i2c_get_clientdata(c);
321 unsigned char data[] = {0x80, 0x2c};
322 struct i2c_msg msg = {.addr = t->tda827x_addr, .buf = data,
323 .flags = 0, .len = 2};
324 i2c_transfer(c->adapter, &msg, 1);
325 }
326
327 /*---------------------------------------------------------------------*/
328
329 static void tda8290_i2c_bridge(struct i2c_client *c, int close)
330 {
331 unsigned char enable[2] = { 0x21, 0xC0 };
332 unsigned char disable[2] = { 0x21, 0x00 };
333 unsigned char *msg;
334 if(close) {
335 msg = enable;
336 i2c_master_send(c, msg, 2);
337 /* let the bridge stabilize */
338 msleep(20);
339 } else {
340 msg = disable;
341 i2c_master_send(c, msg, 2);
342 }
343 }
344
345 /*---------------------------------------------------------------------*/
346
347 static int tda8290_tune(struct i2c_client *c, u16 ifc, unsigned int freq)
348 {
349 struct tuner *t = i2c_get_clientdata(c);
350 unsigned char soft_reset[] = { 0x00, 0x00 };
351 unsigned char easy_mode[] = { 0x01, t->tda8290_easy_mode };
352 unsigned char expert_mode[] = { 0x01, 0x80 };
353 unsigned char agc_out_on[] = { 0x02, 0x00 };
354 unsigned char gainset_off[] = { 0x28, 0x14 };
355 unsigned char if_agc_spd[] = { 0x0f, 0x88 };
356 unsigned char adc_head_6[] = { 0x05, 0x04 };
357 unsigned char adc_head_9[] = { 0x05, 0x02 };
358 unsigned char adc_head_12[] = { 0x05, 0x01 };
359 unsigned char pll_bw_nom[] = { 0x0d, 0x47 };
360 unsigned char pll_bw_low[] = { 0x0d, 0x27 };
361 unsigned char gainset_2[] = { 0x28, 0x64 };
362 unsigned char agc_rst_on[] = { 0x0e, 0x0b };
363 unsigned char agc_rst_off[] = { 0x0e, 0x09 };
364 unsigned char if_agc_set[] = { 0x0f, 0x81 };
365 unsigned char addr_adc_sat = 0x1a;
366 unsigned char addr_agc_stat = 0x1d;
367 unsigned char addr_pll_stat = 0x1b;
368 unsigned char adc_sat, agc_stat,
369 pll_stat;
370 int i;
371
372 tuner_dbg("tda827xa config is 0x%02x\n", t->config);
373 i2c_master_send(c, easy_mode, 2);
374 i2c_master_send(c, agc_out_on, 2);
375 i2c_master_send(c, soft_reset, 2);
376 msleep(1);
377
378 expert_mode[1] = t->tda8290_easy_mode + 0x80;
379 i2c_master_send(c, expert_mode, 2);
380 i2c_master_send(c, gainset_off, 2);
381 i2c_master_send(c, if_agc_spd, 2);
382 if (t->tda8290_easy_mode & 0x60)
383 i2c_master_send(c, adc_head_9, 2);
384 else
385 i2c_master_send(c, adc_head_6, 2);
386 i2c_master_send(c, pll_bw_nom, 2);
387
388 tda8290_i2c_bridge(c, 1);
389 if (t->tda827x_ver != 0)
390 tda827xa_tune(c, ifc, freq);
391 else
392 tda827x_tune(c, ifc, freq);
393 for (i = 0; i < 3; i++) {
394 i2c_master_send(c, &addr_pll_stat, 1);
395 i2c_master_recv(c, &pll_stat, 1);
396 if (pll_stat & 0x80) {
397 i2c_master_send(c, &addr_adc_sat, 1);
398 i2c_master_recv(c, &adc_sat, 1);
399 i2c_master_send(c, &addr_agc_stat, 1);
400 i2c_master_recv(c, &agc_stat, 1);
401 tuner_dbg("tda8290 is locked, AGC: %d\n", agc_stat);
402 break;
403 } else {
404 tuner_dbg("tda8290 not locked, no signal?\n");
405 msleep(100);
406 }
407 }
408 /* adjust headroom resp. gain */
409 if ((agc_stat > 115) || (!(pll_stat & 0x80) && (adc_sat < 20))) {
410 tuner_dbg("adjust gain, step 1. Agc: %d, ADC stat: %d, lock: %d\n",
411 agc_stat, adc_sat, pll_stat & 0x80);
412 i2c_master_send(c, gainset_2, 2);
413 msleep(100);
414 i2c_master_send(c, &addr_agc_stat, 1);
415 i2c_master_recv(c, &agc_stat, 1);
416 i2c_master_send(c, &addr_pll_stat, 1);
417 i2c_master_recv(c, &pll_stat, 1);
418 if ((agc_stat > 115) || !(pll_stat & 0x80)) {
419 tuner_dbg("adjust gain, step 2. Agc: %d, lock: %d\n",
420 agc_stat, pll_stat & 0x80);
421 if (t->tda827x_ver != 0)
422 tda827xa_agcf(c);
423 else
424 tda827x_agcf(c);
425 msleep(100);
426 i2c_master_send(c, &addr_agc_stat, 1);
427 i2c_master_recv(c, &agc_stat, 1);
428 i2c_master_send(c, &addr_pll_stat, 1);
429 i2c_master_recv(c, &pll_stat, 1);
430 if((agc_stat > 115) || !(pll_stat & 0x80)) {
431 tuner_dbg("adjust gain, step 3. Agc: %d\n", agc_stat);
432 i2c_master_send(c, adc_head_12, 2);
433 i2c_master_send(c, pll_bw_low, 2);
434 msleep(100);
435 }
436 }
437 }
438
439 /* l/ l' deadlock? */
440 if(t->tda8290_easy_mode & 0x60) {
441 i2c_master_send(c, &addr_adc_sat, 1);
442 i2c_master_recv(c, &adc_sat, 1);
443 i2c_master_send(c, &addr_pll_stat, 1);
444 i2c_master_recv(c, &pll_stat, 1);
445 if ((adc_sat > 20) || !(pll_stat & 0x80)) {
446 tuner_dbg("trying to resolve SECAM L deadlock\n");
447 i2c_master_send(c, agc_rst_on, 2);
448 msleep(40);
449 i2c_master_send(c, agc_rst_off, 2);
450 }
451 }
452
453 tda8290_i2c_bridge(c, 0);
454 i2c_master_send(c, if_agc_set, 2);
455 return 0;
456 }
457
458 /*---------------------------------------------------------------------*/
459
460 static void set_audio(struct tuner *t)
461 {
462 char* mode;
463
464 t->tda827x_lpsel = 0;
465 if (t->std & V4L2_STD_MN) {
466 t->sgIF = 92;
467 t->tda8290_easy_mode = 0x01;
468 t->tda827x_lpsel = 1;
469 mode = "MN";
470 } else if (t->std & V4L2_STD_B) {
471 t->sgIF = 108;
472 t->tda8290_easy_mode = 0x02;
473 mode = "B";
474 } else if (t->std & V4L2_STD_GH) {
475 t->sgIF = 124;
476 t->tda8290_easy_mode = 0x04;
477 mode = "GH";
478 } else if (t->std & V4L2_STD_PAL_I) {
479 t->sgIF = 124;
480 t->tda8290_easy_mode = 0x08;
481 mode = "I";
482 } else if (t->std & V4L2_STD_DK) {
483 t->sgIF = 124;
484 t->tda8290_easy_mode = 0x10;
485 mode = "DK";
486 } else if (t->std & V4L2_STD_SECAM_L) {
487 t->sgIF = 124;
488 t->tda8290_easy_mode = 0x20;
489 mode = "L";
490 } else if (t->std & V4L2_STD_SECAM_LC) {
491 t->sgIF = 20;
492 t->tda8290_easy_mode = 0x40;
493 mode = "LC";
494 } else {
495 t->sgIF = 124;
496 t->tda8290_easy_mode = 0x10;
497 mode = "xx";
498 }
499 tuner_dbg("setting tda8290 to system %s\n", mode);
500 }
501
502 static void set_tv_freq(struct i2c_client *c, unsigned int freq)
503 {
504 struct tuner *t = i2c_get_clientdata(c);
505
506 set_audio(t);
507 tda8290_tune(c, t->sgIF, freq);
508 }
509
510 static void set_radio_freq(struct i2c_client *c, unsigned int freq)
511 {
512 /* if frequency is 5.5 MHz */
513 tda8290_tune(c, 88, freq);
514 }
515
516 static int has_signal(struct i2c_client *c)
517 {
518 unsigned char i2c_get_afc[1] = { 0x1B };
519 unsigned char afc = 0;
520
521 i2c_master_send(c, i2c_get_afc, ARRAY_SIZE(i2c_get_afc));
522 i2c_master_recv(c, &afc, 1);
523 return (afc & 0x80)? 65535:0;
524 }
525
526 /*---------------------------------------------------------------------*/
527
528 static void standby(struct i2c_client *c)
529 {
530 struct tuner *t = i2c_get_clientdata(c);
531 unsigned char cb1[] = { 0x30, 0xD0 };
532 unsigned char tda8290_standby[] = { 0x00, 0x02 };
533 unsigned char tda8290_agc_tri[] = { 0x02, 0x20 };
534 struct i2c_msg msg = {.addr = t->tda827x_addr, .flags=0, .buf=cb1, .len = 2};
535
536 tda8290_i2c_bridge(c, 1);
537 if (t->tda827x_ver != 0)
538 cb1[1] = 0x90;
539 i2c_transfer(c->adapter, &msg, 1);
540 tda8290_i2c_bridge(c, 0);
541 i2c_master_send(c, tda8290_agc_tri, 2);
542 i2c_master_send(c, tda8290_standby, 2);
543 }
544
545
546 static void tda8290_init_if(struct i2c_client *c)
547 {
548 struct tuner *t = i2c_get_clientdata(c);
549 unsigned char set_VS[] = { 0x30, 0x6F };
550 unsigned char set_GP00_CF[] = { 0x20, 0x01 };
551 unsigned char set_GP01_CF[] = { 0x20, 0x0B };
552
553 if ((t->config == 1) || (t->config == 2))
554 i2c_master_send(c, set_GP00_CF, 2);
555 else
556 i2c_master_send(c, set_GP01_CF, 2);
557 i2c_master_send(c, set_VS, 2);
558 }
559
560 static void tda8290_init_tuner(struct i2c_client *c)
561 {
562 struct tuner *t = i2c_get_clientdata(c);
563 unsigned char tda8275_init[] = { 0x00, 0x00, 0x00, 0x40, 0xdC, 0x04, 0xAf,
564 0x3F, 0x2A, 0x04, 0xFF, 0x00, 0x00, 0x40 };
565 unsigned char tda8275a_init[] = { 0x00, 0x00, 0x00, 0x00, 0xdC, 0x05, 0x8b,
566 0x0c, 0x04, 0x20, 0xFF, 0x00, 0x00, 0x4b };
567 struct i2c_msg msg = {.addr = t->tda827x_addr, .flags=0,
568 .buf=tda8275_init, .len = 14};
569 if (t->tda827x_ver != 0)
570 msg.buf = tda8275a_init;
571
572 tda8290_i2c_bridge(c, 1);
573 i2c_transfer(c->adapter, &msg, 1);
574 tda8290_i2c_bridge(c, 0);
575 }
576
577 /*---------------------------------------------------------------------*/
578
579 int tda8290_init(struct i2c_client *c)
580 {
581 struct tuner *t = i2c_get_clientdata(c);
582 u8 data;
583 int i, ret, tuners_found;
584 u32 tuner_addrs;
585 struct i2c_msg msg = {.flags=I2C_M_RD, .buf=&data, .len = 1};
586
587 tda8290_i2c_bridge(c, 1);
588 /* probe for tuner chip */
589 tuners_found = 0;
590 tuner_addrs = 0;
591 for (i=0x60; i<= 0x63; i++) {
592 msg.addr = i;
593 ret = i2c_transfer(c->adapter, &msg, 1);
594 if (ret == 1) {
595 tuners_found++;
596 tuner_addrs = (tuner_addrs << 8) + i;
597 }
598 }
599 /* if there is more than one tuner, we expect the right one is
600 behind the bridge and we choose the highest address that doesn't
601 give a response now
602 */
603 tda8290_i2c_bridge(c, 0);
604 if(tuners_found > 1)
605 for (i = 0; i < tuners_found; i++) {
606 msg.addr = tuner_addrs & 0xff;
607 ret = i2c_transfer(c->adapter, &msg, 1);
608 if(ret == 1)
609 tuner_addrs = tuner_addrs >> 8;
610 else
611 break;
612 }
613 if (tuner_addrs == 0) {
614 tuner_addrs = 0x61;
615 tuner_info ("could not clearly identify tuner address, defaulting to %x\n",
616 tuner_addrs);
617 } else {
618 tuner_addrs = tuner_addrs & 0xff;
619 tuner_info ("setting tuner address to %x\n", tuner_addrs);
620 }
621 t->tda827x_addr = tuner_addrs;
622 msg.addr = tuner_addrs;
623
624 tda8290_i2c_bridge(c, 1);
625 ret = i2c_transfer(c->adapter, &msg, 1);
626 if( ret != 1)
627 tuner_warn ("TDA827x access failed!\n");
628 if ((data & 0x3c) == 0) {
629 strlcpy(c->name, "tda8290+75", sizeof(c->name));
630 t->tda827x_ver = 0;
631 } else {
632 strlcpy(c->name, "tda8290+75a", sizeof(c->name));
633 t->tda827x_ver = 2;
634 }
635 tuner_info("type set to %s\n", c->name);
636
637 t->set_tv_freq = set_tv_freq;
638 t->set_radio_freq = set_radio_freq;
639 t->has_signal = has_signal;
640 t->standby = standby;
641 t->tda827x_lpsel = 0;
642 t->mode = V4L2_TUNER_ANALOG_TV;
643
644 tda8290_init_tuner(c);
645 tda8290_init_if(c);
646 return 0;
647 }
648
649 int tda8290_probe(struct i2c_client *c)
650 {
651 unsigned char soft_reset[] = { 0x00, 0x00 };
652 unsigned char easy_mode_b[] = { 0x01, 0x02 };
653 unsigned char easy_mode_g[] = { 0x01, 0x04 };
654 unsigned char restore_9886[] = { 0x00, 0xd6, 0x30 };
655 unsigned char addr_dto_lsb = 0x07;
656 unsigned char data;
657
658 i2c_master_send(c, easy_mode_b, 2);
659 i2c_master_send(c, soft_reset, 2);
660 i2c_master_send(c, &addr_dto_lsb, 1);
661 i2c_master_recv(c, &data, 1);
662 if (data == 0) {
663 i2c_master_send(c, easy_mode_g, 2);
664 i2c_master_send(c, soft_reset, 2);
665 i2c_master_send(c, &addr_dto_lsb, 1);
666 i2c_master_recv(c, &data, 1);
667 if (data == 0x7b) {
668 return 0;
669 }
670 }
671 i2c_master_send(c, restore_9886, 3);
672 return -1;
673 }
674
675 /*
676 * Overrides for Emacs so that we follow Linus's tabbing style.
677 * ---------------------------------------------------------------------------
678 * Local variables:
679 * c-basic-offset: 8
680 * End:
681 */
Tomato firmware and modifications.