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added 2.6.29.6 aldebaran kernel
[nao-ulib.git] / kernel / 2.6.29.6-aldebaran-rt / drivers / media / common / tuners / tda827x.c
blobf4d931f14fad5bae30b8fc73e94aeec3e9891199
1 /*
2 *
3 * (c) 2005 Hartmut Hackmann
4 * (c) 2007 Michael Krufky
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/module.h>
22 #include <asm/types.h>
23 #include <linux/dvb/frontend.h>
24 #include <linux/videodev2.h>
25
26 #include "tda827x.h"
27
28 static int debug;
29 module_param(debug, int, 0644);
30 MODULE_PARM_DESC(debug, "Turn on/off frontend debugging (default:off).");
31
32 #define dprintk(args...) \
33 do { \
34 if (debug) printk(KERN_DEBUG "tda827x: " args); \
35 } while (0)
36
37 struct tda827x_priv {
38 int i2c_addr;
39 struct i2c_adapter *i2c_adap;
40 struct tda827x_config *cfg;
41
42 unsigned int sgIF;
43 unsigned char lpsel;
44
45 u32 frequency;
46 u32 bandwidth;
47 };
48
49 static void tda827x_set_std(struct dvb_frontend *fe,
50 struct analog_parameters *params)
51 {
52 struct tda827x_priv *priv = fe->tuner_priv;
53 char *mode;
54
55 priv->lpsel = 0;
56 if (params->std & V4L2_STD_MN) {
57 priv->sgIF = 92;
58 priv->lpsel = 1;
59 mode = "MN";
60 } else if (params->std & V4L2_STD_B) {
61 priv->sgIF = 108;
62 mode = "B";
63 } else if (params->std & V4L2_STD_GH) {
64 priv->sgIF = 124;
65 mode = "GH";
66 } else if (params->std & V4L2_STD_PAL_I) {
67 priv->sgIF = 124;
68 mode = "I";
69 } else if (params->std & V4L2_STD_DK) {
70 priv->sgIF = 124;
71 mode = "DK";
72 } else if (params->std & V4L2_STD_SECAM_L) {
73 priv->sgIF = 124;
74 mode = "L";
75 } else if (params->std & V4L2_STD_SECAM_LC) {
76 priv->sgIF = 20;
77 mode = "LC";
78 } else {
79 priv->sgIF = 124;
80 mode = "xx";
81 }
82
83 if (params->mode == V4L2_TUNER_RADIO) {
84 priv->sgIF = 88; /* if frequency is 5.5 MHz */
85 dprintk("setting tda827x to radio FM\n");
86 } else
87 dprintk("setting tda827x to system %s\n", mode);
88 }
89
90
91 /* ------------------------------------------------------------------ */
92
93 struct tda827x_data {
94 u32 lomax;
95 u8 spd;
96 u8 bs;
97 u8 bp;
98 u8 cp;
99 u8 gc3;
100 u8 div1p5;
101 };
102
103 static const struct tda827x_data tda827x_table[] = {
104 { .lomax = 62000000, .spd = 3, .bs = 2, .bp = 0, .cp = 0, .gc3 = 3, .div1p5 = 1},
105 { .lomax = 66000000, .spd = 3, .bs = 3, .bp = 0, .cp = 0, .gc3 = 3, .div1p5 = 1},
106 { .lomax = 76000000, .spd = 3, .bs = 1, .bp = 0, .cp = 0, .gc3 = 3, .div1p5 = 0},
107 { .lomax = 84000000, .spd = 3, .bs = 2, .bp = 0, .cp = 0, .gc3 = 3, .div1p5 = 0},
108 { .lomax = 93000000, .spd = 3, .bs = 2, .bp = 0, .cp = 0, .gc3 = 1, .div1p5 = 0},
109 { .lomax = 98000000, .spd = 3, .bs = 3, .bp = 0, .cp = 0, .gc3 = 1, .div1p5 = 0},
110 { .lomax = 109000000, .spd = 3, .bs = 3, .bp = 1, .cp = 0, .gc3 = 1, .div1p5 = 0},
111 { .lomax = 123000000, .spd = 2, .bs = 2, .bp = 1, .cp = 0, .gc3 = 1, .div1p5 = 1},
112 { .lomax = 133000000, .spd = 2, .bs = 3, .bp = 1, .cp = 0, .gc3 = 1, .div1p5 = 1},
113 { .lomax = 151000000, .spd = 2, .bs = 1, .bp = 1, .cp = 0, .gc3 = 1, .div1p5 = 0},
114 { .lomax = 154000000, .spd = 2, .bs = 2, .bp = 1, .cp = 0, .gc3 = 1, .div1p5 = 0},
115 { .lomax = 181000000, .spd = 2, .bs = 2, .bp = 1, .cp = 0, .gc3 = 0, .div1p5 = 0},
116 { .lomax = 185000000, .spd = 2, .bs = 2, .bp = 2, .cp = 0, .gc3 = 1, .div1p5 = 0},
117 { .lomax = 217000000, .spd = 2, .bs = 3, .bp = 2, .cp = 0, .gc3 = 1, .div1p5 = 0},
118 { .lomax = 244000000, .spd = 1, .bs = 2, .bp = 2, .cp = 0, .gc3 = 1, .div1p5 = 1},
119 { .lomax = 265000000, .spd = 1, .bs = 3, .bp = 2, .cp = 0, .gc3 = 1, .div1p5 = 1},
120 { .lomax = 302000000, .spd = 1, .bs = 1, .bp = 2, .cp = 0, .gc3 = 1, .div1p5 = 0},
121 { .lomax = 324000000, .spd = 1, .bs = 2, .bp = 2, .cp = 0, .gc3 = 1, .div1p5 = 0},
122 { .lomax = 370000000, .spd = 1, .bs = 2, .bp = 3, .cp = 0, .gc3 = 1, .div1p5 = 0},
123 { .lomax = 454000000, .spd = 1, .bs = 3, .bp = 3, .cp = 0, .gc3 = 1, .div1p5 = 0},
124 { .lomax = 493000000, .spd = 0, .bs = 2, .bp = 3, .cp = 0, .gc3 = 1, .div1p5 = 1},
125 { .lomax = 530000000, .spd = 0, .bs = 3, .bp = 3, .cp = 0, .gc3 = 1, .div1p5 = 1},
126 { .lomax = 554000000, .spd = 0, .bs = 1, .bp = 3, .cp = 0, .gc3 = 1, .div1p5 = 0},
127 { .lomax = 604000000, .spd = 0, .bs = 1, .bp = 4, .cp = 0, .gc3 = 0, .div1p5 = 0},
128 { .lomax = 696000000, .spd = 0, .bs = 2, .bp = 4, .cp = 0, .gc3 = 0, .div1p5 = 0},
129 { .lomax = 740000000, .spd = 0, .bs = 2, .bp = 4, .cp = 1, .gc3 = 0, .div1p5 = 0},
130 { .lomax = 820000000, .spd = 0, .bs = 3, .bp = 4, .cp = 0, .gc3 = 0, .div1p5 = 0},
131 { .lomax = 865000000, .spd = 0, .bs = 3, .bp = 4, .cp = 1, .gc3 = 0, .div1p5 = 0},
132 { .lomax = 0, .spd = 0, .bs = 0, .bp = 0, .cp = 0, .gc3 = 0, .div1p5 = 0}
133 };
134
135 static int tda827xo_set_params(struct dvb_frontend *fe,
136 struct dvb_frontend_parameters *params)
137 {
138 struct tda827x_priv *priv = fe->tuner_priv;
139 u8 buf[14];
140
141 struct i2c_msg msg = { .addr = priv->i2c_addr, .flags = 0,
142 .buf = buf, .len = sizeof(buf) };
143 int i, tuner_freq, if_freq;
144 u32 N;
145
146 dprintk("%s:\n", __func__);
147 switch (params->u.ofdm.bandwidth) {
148 case BANDWIDTH_6_MHZ:
149 if_freq = 4000000;
150 break;
151 case BANDWIDTH_7_MHZ:
152 if_freq = 4500000;
153 break;
154 default: /* 8 MHz or Auto */
155 if_freq = 5000000;
156 break;
157 }
158 tuner_freq = params->frequency + if_freq;
159
160 i = 0;
161 while (tda827x_table[i].lomax < tuner_freq) {
162 if (tda827x_table[i + 1].lomax == 0)
163 break;
164 i++;
165 }
166
167 N = ((tuner_freq + 125000) / 250000) << (tda827x_table[i].spd + 2);
168 buf[0] = 0;
169 buf[1] = (N>>8) | 0x40;
170 buf[2] = N & 0xff;
171 buf[3] = 0;
172 buf[4] = 0x52;
173 buf[5] = (tda827x_table[i].spd << 6) + (tda827x_table[i].div1p5 << 5) +
174 (tda827x_table[i].bs << 3) +
175 tda827x_table[i].bp;
176 buf[6] = (tda827x_table[i].gc3 << 4) + 0x8f;
177 buf[7] = 0xbf;
178 buf[8] = 0x2a;
179 buf[9] = 0x05;
180 buf[10] = 0xff;
181 buf[11] = 0x00;
182 buf[12] = 0x00;
183 buf[13] = 0x40;
184
185 msg.len = 14;
186 if (fe->ops.i2c_gate_ctrl)
187 fe->ops.i2c_gate_ctrl(fe, 1);
188 if (i2c_transfer(priv->i2c_adap, &msg, 1) != 1) {
189 printk("%s: could not write to tuner at addr: 0x%02x\n",
190 __func__, priv->i2c_addr << 1);
191 return -EIO;
192 }
193 msleep(500);
194 /* correct CP value */
195 buf[0] = 0x30;
196 buf[1] = 0x50 + tda827x_table[i].cp;
197 msg.len = 2;
198
199 if (fe->ops.i2c_gate_ctrl)
200 fe->ops.i2c_gate_ctrl(fe, 1);
201 i2c_transfer(priv->i2c_adap, &msg, 1);
202
203 priv->frequency = params->frequency;
204 priv->bandwidth = (fe->ops.info.type == FE_OFDM) ? params->u.ofdm.bandwidth : 0;
205
206 return 0;
207 }
208
209 static int tda827xo_sleep(struct dvb_frontend *fe)
210 {
211 struct tda827x_priv *priv = fe->tuner_priv;
212 static u8 buf[] = { 0x30, 0xd0 };
213 struct i2c_msg msg = { .addr = priv->i2c_addr, .flags = 0,
214 .buf = buf, .len = sizeof(buf) };
215
216 dprintk("%s:\n", __func__);
217 if (fe->ops.i2c_gate_ctrl)
218 fe->ops.i2c_gate_ctrl(fe, 1);
219 i2c_transfer(priv->i2c_adap, &msg, 1);
220
221 if (priv->cfg && priv->cfg->sleep)
222 priv->cfg->sleep(fe);
223
224 return 0;
225 }
226
227 /* ------------------------------------------------------------------ */
228
229 static int tda827xo_set_analog_params(struct dvb_frontend *fe,
230 struct analog_parameters *params)
231 {
232 unsigned char tuner_reg[8];
233 unsigned char reg2[2];
234 u32 N;
235 int i;
236 struct tda827x_priv *priv = fe->tuner_priv;
237 struct i2c_msg msg = { .addr = priv->i2c_addr, .flags = 0 };
238 unsigned int freq = params->frequency;
239
240 tda827x_set_std(fe, params);
241
242 if (params->mode == V4L2_TUNER_RADIO)
243 freq = freq / 1000;
244
245 N = freq + priv->sgIF;
246
247 i = 0;
248 while (tda827x_table[i].lomax < N * 62500) {
249 if (tda827x_table[i + 1].lomax == 0)
250 break;
251 i++;
252 }
253
254 N = N << tda827x_table[i].spd;
255
256 tuner_reg[0] = 0;
257 tuner_reg[1] = (unsigned char)(N>>8);
258 tuner_reg[2] = (unsigned char) N;
259 tuner_reg[3] = 0x40;
260 tuner_reg[4] = 0x52 + (priv->lpsel << 5);
261 tuner_reg[5] = (tda827x_table[i].spd << 6) +
262 (tda827x_table[i].div1p5 << 5) +
263 (tda827x_table[i].bs << 3) + tda827x_table[i].bp;
264 tuner_reg[6] = 0x8f + (tda827x_table[i].gc3 << 4);
265 tuner_reg[7] = 0x8f;
266
267 msg.buf = tuner_reg;
268 msg.len = 8;
269 i2c_transfer(priv->i2c_adap, &msg, 1);
270
271 msg.buf = reg2;
272 msg.len = 2;
273 reg2[0] = 0x80;
274 reg2[1] = 0;
275 i2c_transfer(priv->i2c_adap, &msg, 1);
276
277 reg2[0] = 0x60;
278 reg2[1] = 0xbf;
279 i2c_transfer(priv->i2c_adap, &msg, 1);
280
281 reg2[0] = 0x30;
282 reg2[1] = tuner_reg[4] + 0x80;
283 i2c_transfer(priv->i2c_adap, &msg, 1);
284
285 msleep(1);
286 reg2[0] = 0x30;
287 reg2[1] = tuner_reg[4] + 4;
288 i2c_transfer(priv->i2c_adap, &msg, 1);
289
290 msleep(1);
291 reg2[0] = 0x30;
292 reg2[1] = tuner_reg[4];
293 i2c_transfer(priv->i2c_adap, &msg, 1);
294
295 msleep(550);
296 reg2[0] = 0x30;
297 reg2[1] = (tuner_reg[4] & 0xfc) + tda827x_table[i].cp;
298 i2c_transfer(priv->i2c_adap, &msg, 1);
299
300 reg2[0] = 0x60;
301 reg2[1] = 0x3f;
302 i2c_transfer(priv->i2c_adap, &msg, 1);
303
304 reg2[0] = 0x80;
305 reg2[1] = 0x08; /* Vsync en */
306 i2c_transfer(priv->i2c_adap, &msg, 1);
307
308 priv->frequency = params->frequency;
309
310 return 0;
311 }
312
313 static void tda827xo_agcf(struct dvb_frontend *fe)
314 {
315 struct tda827x_priv *priv = fe->tuner_priv;
316 unsigned char data[] = { 0x80, 0x0c };
317 struct i2c_msg msg = { .addr = priv->i2c_addr, .flags = 0,
318 .buf = data, .len = 2};
319
320 i2c_transfer(priv->i2c_adap, &msg, 1);
321 }
322
323 /* ------------------------------------------------------------------ */
324
325 struct tda827xa_data {
326 u32 lomax;
327 u8 svco;
328 u8 spd;
329 u8 scr;
330 u8 sbs;
331 u8 gc3;
332 };
333
334 static const struct tda827xa_data tda827xa_dvbt[] = {
335 { .lomax = 56875000, .svco = 3, .spd = 4, .scr = 0, .sbs = 0, .gc3 = 1},
336 { .lomax = 67250000, .svco = 0, .spd = 3, .scr = 0, .sbs = 0, .gc3 = 1},
337 { .lomax = 81250000, .svco = 1, .spd = 3, .scr = 0, .sbs = 0, .gc3 = 1},
338 { .lomax = 97500000, .svco = 2, .spd = 3, .scr = 0, .sbs = 0, .gc3 = 1},
339 { .lomax = 113750000, .svco = 3, .spd = 3, .scr = 0, .sbs = 1, .gc3 = 1},
340 { .lomax = 134500000, .svco = 0, .spd = 2, .scr = 0, .sbs = 1, .gc3 = 1},
341 { .lomax = 154000000, .svco = 1, .spd = 2, .scr = 0, .sbs = 1, .gc3 = 1},
342 { .lomax = 162500000, .svco = 1, .spd = 2, .scr = 0, .sbs = 1, .gc3 = 1},
343 { .lomax = 183000000, .svco = 2, .spd = 2, .scr = 0, .sbs = 1, .gc3 = 1},
344 { .lomax = 195000000, .svco = 2, .spd = 2, .scr = 0, .sbs = 2, .gc3 = 1},
345 { .lomax = 227500000, .svco = 3, .spd = 2, .scr = 0, .sbs = 2, .gc3 = 1},
346 { .lomax = 269000000, .svco = 0, .spd = 1, .scr = 0, .sbs = 2, .gc3 = 1},
347 { .lomax = 290000000, .svco = 1, .spd = 1, .scr = 0, .sbs = 2, .gc3 = 1},
348 { .lomax = 325000000, .svco = 1, .spd = 1, .scr = 0, .sbs = 3, .gc3 = 1},
349 { .lomax = 390000000, .svco = 2, .spd = 1, .scr = 0, .sbs = 3, .gc3 = 1},
350 { .lomax = 455000000, .svco = 3, .spd = 1, .scr = 0, .sbs = 3, .gc3 = 1},
351 { .lomax = 520000000, .svco = 0, .spd = 0, .scr = 0, .sbs = 3, .gc3 = 1},
352 { .lomax = 538000000, .svco = 0, .spd = 0, .scr = 1, .sbs = 3, .gc3 = 1},
353 { .lomax = 550000000, .svco = 1, .spd = 0, .scr = 0, .sbs = 3, .gc3 = 1},
354 { .lomax = 620000000, .svco = 1, .spd = 0, .scr = 0, .sbs = 4, .gc3 = 0},
355 { .lomax = 650000000, .svco = 1, .spd = 0, .scr = 1, .sbs = 4, .gc3 = 0},
356 { .lomax = 700000000, .svco = 2, .spd = 0, .scr = 0, .sbs = 4, .gc3 = 0},
357 { .lomax = 780000000, .svco = 2, .spd = 0, .scr = 1, .sbs = 4, .gc3 = 0},
358 { .lomax = 820000000, .svco = 3, .spd = 0, .scr = 0, .sbs = 4, .gc3 = 0},
359 { .lomax = 870000000, .svco = 3, .spd = 0, .scr = 1, .sbs = 4, .gc3 = 0},
360 { .lomax = 911000000, .svco = 3, .spd = 0, .scr = 2, .sbs = 4, .gc3 = 0},
361 { .lomax = 0, .svco = 0, .spd = 0, .scr = 0, .sbs = 0, .gc3 = 0}
362 };
363
364 static struct tda827xa_data tda827xa_analog[] = {
365 { .lomax = 56875000, .svco = 3, .spd = 4, .scr = 0, .sbs = 0, .gc3 = 3},
366 { .lomax = 67250000, .svco = 0, .spd = 3, .scr = 0, .sbs = 0, .gc3 = 3},
367 { .lomax = 81250000, .svco = 1, .spd = 3, .scr = 0, .sbs = 0, .gc3 = 3},
368 { .lomax = 97500000, .svco = 2, .spd = 3, .scr = 0, .sbs = 0, .gc3 = 3},
369 { .lomax = 113750000, .svco = 3, .spd = 3, .scr = 0, .sbs = 1, .gc3 = 1},
370 { .lomax = 134500000, .svco = 0, .spd = 2, .scr = 0, .sbs = 1, .gc3 = 1},
371 { .lomax = 154000000, .svco = 1, .spd = 2, .scr = 0, .sbs = 1, .gc3 = 1},
372 { .lomax = 162500000, .svco = 1, .spd = 2, .scr = 0, .sbs = 1, .gc3 = 1},
373 { .lomax = 183000000, .svco = 2, .spd = 2, .scr = 0, .sbs = 1, .gc3 = 1},
374 { .lomax = 195000000, .svco = 2, .spd = 2, .scr = 0, .sbs = 2, .gc3 = 1},
375 { .lomax = 227500000, .svco = 3, .spd = 2, .scr = 0, .sbs = 2, .gc3 = 3},
376 { .lomax = 269000000, .svco = 0, .spd = 1, .scr = 0, .sbs = 2, .gc3 = 3},
377 { .lomax = 325000000, .svco = 1, .spd = 1, .scr = 0, .sbs = 2, .gc3 = 1},
378 { .lomax = 390000000, .svco = 2, .spd = 1, .scr = 0, .sbs = 3, .gc3 = 3},
379 { .lomax = 455000000, .svco = 3, .spd = 1, .scr = 0, .sbs = 3, .gc3 = 3},
380 { .lomax = 520000000, .svco = 0, .spd = 0, .scr = 0, .sbs = 3, .gc3 = 1},
381 { .lomax = 538000000, .svco = 0, .spd = 0, .scr = 1, .sbs = 3, .gc3 = 1},
382 { .lomax = 554000000, .svco = 1, .spd = 0, .scr = 0, .sbs = 3, .gc3 = 1},
383 { .lomax = 620000000, .svco = 1, .spd = 0, .scr = 0, .sbs = 4, .gc3 = 0},
384 { .lomax = 650000000, .svco = 1, .spd = 0, .scr = 1, .sbs = 4, .gc3 = 0},
385 { .lomax = 700000000, .svco = 2, .spd = 0, .scr = 0, .sbs = 4, .gc3 = 0},
386 { .lomax = 780000000, .svco = 2, .spd = 0, .scr = 1, .sbs = 4, .gc3 = 0},
387 { .lomax = 820000000, .svco = 3, .spd = 0, .scr = 0, .sbs = 4, .gc3 = 0},
388 { .lomax = 870000000, .svco = 3, .spd = 0, .scr = 1, .sbs = 4, .gc3 = 0},
389 { .lomax = 911000000, .svco = 3, .spd = 0, .scr = 2, .sbs = 4, .gc3 = 0},
390 { .lomax = 0, .svco = 0, .spd = 0, .scr = 0, .sbs = 0, .gc3 = 0}
391 };
392
393 static int tda827xa_sleep(struct dvb_frontend *fe)
394 {
395 struct tda827x_priv *priv = fe->tuner_priv;
396 static u8 buf[] = { 0x30, 0x90 };
397 struct i2c_msg msg = { .addr = priv->i2c_addr, .flags = 0,
398 .buf = buf, .len = sizeof(buf) };
399
400 dprintk("%s:\n", __func__);
401 if (fe->ops.i2c_gate_ctrl)
402 fe->ops.i2c_gate_ctrl(fe, 1);
403
404 i2c_transfer(priv->i2c_adap, &msg, 1);
405
406 if (fe->ops.i2c_gate_ctrl)
407 fe->ops.i2c_gate_ctrl(fe, 0);
408
409 if (priv->cfg && priv->cfg->sleep)
410 priv->cfg->sleep(fe);
411
412 return 0;
413 }
414
415 static void tda827xa_lna_gain(struct dvb_frontend *fe, int high,
416 struct analog_parameters *params)
417 {
418 struct tda827x_priv *priv = fe->tuner_priv;
419 unsigned char buf[] = {0x22, 0x01};
420 int arg;
421 int gp_func;
422 struct i2c_msg msg = { .flags = 0, .buf = buf, .len = sizeof(buf) };
423
424 if (NULL == priv->cfg) {
425 dprintk("tda827x_config not defined, cannot set LNA gain!\n");
426 return;
427 }
428 msg.addr = priv->cfg->switch_addr;
429 if (priv->cfg->config) {
430 if (high)
431 dprintk("setting LNA to high gain\n");
432 else
433 dprintk("setting LNA to low gain\n");
434 }
435 switch (priv->cfg->config) {
436 case 0: /* no LNA */
437 break;
438 case 1: /* switch is GPIO 0 of tda8290 */
439 case 2:
440 if (params == NULL) {
441 gp_func = 0;
442 arg = 0;
443 } else {
444 /* turn Vsync on */
445 gp_func = 1;
446 if (params->std & V4L2_STD_MN)
447 arg = 1;
448 else
449 arg = 0;
450 }
451 if (fe->callback)
452 fe->callback(priv->i2c_adap->algo_data,
453 DVB_FRONTEND_COMPONENT_TUNER,
454 gp_func, arg);
455 buf[1] = high ? 0 : 1;
456 if (priv->cfg->config == 2)
457 buf[1] = high ? 1 : 0;
458 i2c_transfer(priv->i2c_adap, &msg, 1);
459 break;
460 case 3: /* switch with GPIO of saa713x */
461 if (fe->callback)
462 fe->callback(priv->i2c_adap->algo_data,
463 DVB_FRONTEND_COMPONENT_TUNER, 0, high);
464 break;
465 }
466 }
467
468 static int tda827xa_set_params(struct dvb_frontend *fe,
469 struct dvb_frontend_parameters *params)
470 {
471 struct tda827x_priv *priv = fe->tuner_priv;
472 u8 buf[11];
473
474 struct i2c_msg msg = { .addr = priv->i2c_addr, .flags = 0,
475 .buf = buf, .len = sizeof(buf) };
476
477 int i, tuner_freq, if_freq;
478 u32 N;
479
480 dprintk("%s:\n", __func__);
481
482 tda827xa_lna_gain(fe, 1, NULL);
483 msleep(20);
484
485 switch (params->u.ofdm.bandwidth) {
486 case BANDWIDTH_6_MHZ:
487 if_freq = 4000000;
488 break;
489 case BANDWIDTH_7_MHZ:
490 if_freq = 4500000;
491 break;
492 default: /* 8 MHz or Auto */
493 if_freq = 5000000;
494 break;
495 }
496 tuner_freq = params->frequency + if_freq;
497
498 i = 0;
499 while (tda827xa_dvbt[i].lomax < tuner_freq) {
500 if(tda827xa_dvbt[i + 1].lomax == 0)
501 break;
502 i++;
503 }
504
505 N = ((tuner_freq + 31250) / 62500) << tda827xa_dvbt[i].spd;
506 buf[0] = 0; // subaddress
507 buf[1] = N >> 8;
508 buf[2] = N & 0xff;
509 buf[3] = 0;
510 buf[4] = 0x16;
511 buf[5] = (tda827xa_dvbt[i].spd << 5) + (tda827xa_dvbt[i].svco << 3) +
512 tda827xa_dvbt[i].sbs;
513 buf[6] = 0x4b + (tda827xa_dvbt[i].gc3 << 4);
514 buf[7] = 0x1c;
515 buf[8] = 0x06;
516 buf[9] = 0x24;
517 buf[10] = 0x00;
518 msg.len = 11;
519 if (fe->ops.i2c_gate_ctrl)
520 fe->ops.i2c_gate_ctrl(fe, 1);
521 if (i2c_transfer(priv->i2c_adap, &msg, 1) != 1) {
522 printk("%s: could not write to tuner at addr: 0x%02x\n",
523 __func__, priv->i2c_addr << 1);
524 return -EIO;
525 }
526 buf[0] = 0x90;
527 buf[1] = 0xff;
528 buf[2] = 0x60;
529 buf[3] = 0x00;
530 buf[4] = 0x59; // lpsel, for 6MHz + 2
531 msg.len = 5;
532 if (fe->ops.i2c_gate_ctrl)
533 fe->ops.i2c_gate_ctrl(fe, 1);
534 i2c_transfer(priv->i2c_adap, &msg, 1);
535
536 buf[0] = 0xa0;
537 buf[1] = 0x40;
538 msg.len = 2;
539 if (fe->ops.i2c_gate_ctrl)
540 fe->ops.i2c_gate_ctrl(fe, 1);
541 i2c_transfer(priv->i2c_adap, &msg, 1);
542
543 msleep(11);
544 msg.flags = I2C_M_RD;
545 if (fe->ops.i2c_gate_ctrl)
546 fe->ops.i2c_gate_ctrl(fe, 1);
547 i2c_transfer(priv->i2c_adap, &msg, 1);
548 msg.flags = 0;
549
550 buf[1] >>= 4;
551 dprintk("tda8275a AGC2 gain is: %d\n", buf[1]);
552 if ((buf[1]) < 2) {
553 tda827xa_lna_gain(fe, 0, NULL);
554 buf[0] = 0x60;
555 buf[1] = 0x0c;
556 if (fe->ops.i2c_gate_ctrl)
557 fe->ops.i2c_gate_ctrl(fe, 1);
558 i2c_transfer(priv->i2c_adap, &msg, 1);
559 }
560
561 buf[0] = 0xc0;
562 buf[1] = 0x99; // lpsel, for 6MHz + 2
563 if (fe->ops.i2c_gate_ctrl)
564 fe->ops.i2c_gate_ctrl(fe, 1);
565 i2c_transfer(priv->i2c_adap, &msg, 1);
566
567 buf[0] = 0x60;
568 buf[1] = 0x3c;
569 if (fe->ops.i2c_gate_ctrl)
570 fe->ops.i2c_gate_ctrl(fe, 1);
571 i2c_transfer(priv->i2c_adap, &msg, 1);
572
573 /* correct CP value */
574 buf[0] = 0x30;
575 buf[1] = 0x10 + tda827xa_dvbt[i].scr;
576 if (fe->ops.i2c_gate_ctrl)
577 fe->ops.i2c_gate_ctrl(fe, 1);
578 i2c_transfer(priv->i2c_adap, &msg, 1);
579
580 msleep(163);
581 buf[0] = 0xc0;
582 buf[1] = 0x39; // lpsel, for 6MHz + 2
583 if (fe->ops.i2c_gate_ctrl)
584 fe->ops.i2c_gate_ctrl(fe, 1);
585 i2c_transfer(priv->i2c_adap, &msg, 1);
586
587 msleep(3);
588 /* freeze AGC1 */
589 buf[0] = 0x50;
590 buf[1] = 0x4f + (tda827xa_dvbt[i].gc3 << 4);
591 if (fe->ops.i2c_gate_ctrl)
592 fe->ops.i2c_gate_ctrl(fe, 1);
593 i2c_transfer(priv->i2c_adap, &msg, 1);
594
595 priv->frequency = params->frequency;
596 priv->bandwidth = (fe->ops.info.type == FE_OFDM) ? params->u.ofdm.bandwidth : 0;
597
598 return 0;
599 }
600
601
602 static int tda827xa_set_analog_params(struct dvb_frontend *fe,
603 struct analog_parameters *params)
604 {
605 unsigned char tuner_reg[11];
606 u32 N;
607 int i;
608 struct tda827x_priv *priv = fe->tuner_priv;
609 struct i2c_msg msg = { .addr = priv->i2c_addr, .flags = 0,
610 .buf = tuner_reg, .len = sizeof(tuner_reg) };
611 unsigned int freq = params->frequency;
612
613 tda827x_set_std(fe, params);
614
615 tda827xa_lna_gain(fe, 1, params);
616 msleep(10);
617
618 if (params->mode == V4L2_TUNER_RADIO)
619 freq = freq / 1000;
620
621 N = freq + priv->sgIF;
622
623 i = 0;
624 while (tda827xa_analog[i].lomax < N * 62500) {
625 if (tda827xa_analog[i + 1].lomax == 0)
626 break;
627 i++;
628 }
629
630 N = N << tda827xa_analog[i].spd;
631
632 tuner_reg[0] = 0;
633 tuner_reg[1] = (unsigned char)(N>>8);
634 tuner_reg[2] = (unsigned char) N;
635 tuner_reg[3] = 0;
636 tuner_reg[4] = 0x16;
637 tuner_reg[5] = (tda827xa_analog[i].spd << 5) +
638 (tda827xa_analog[i].svco << 3) +
639 tda827xa_analog[i].sbs;
640 tuner_reg[6] = 0x8b + (tda827xa_analog[i].gc3 << 4);
641 tuner_reg[7] = 0x1c;
642 tuner_reg[8] = 4;
643 tuner_reg[9] = 0x20;
644 tuner_reg[10] = 0x00;
645 msg.len = 11;
646 i2c_transfer(priv->i2c_adap, &msg, 1);
647
648 tuner_reg[0] = 0x90;
649 tuner_reg[1] = 0xff;
650 tuner_reg[2] = 0xe0;
651 tuner_reg[3] = 0;
652 tuner_reg[4] = 0x99 + (priv->lpsel << 1);
653 msg.len = 5;
654 i2c_transfer(priv->i2c_adap, &msg, 1);
655
656 tuner_reg[0] = 0xa0;
657 tuner_reg[1] = 0xc0;
658 msg.len = 2;
659 i2c_transfer(priv->i2c_adap, &msg, 1);
660
661 tuner_reg[0] = 0x30;
662 tuner_reg[1] = 0x10 + tda827xa_analog[i].scr;
663 i2c_transfer(priv->i2c_adap, &msg, 1);
664
665 msg.flags = I2C_M_RD;
666 i2c_transfer(priv->i2c_adap, &msg, 1);
667 msg.flags = 0;
668 tuner_reg[1] >>= 4;
669 dprintk("AGC2 gain is: %d\n", tuner_reg[1]);
670 if (tuner_reg[1] < 1)
671 tda827xa_lna_gain(fe, 0, params);
672
673 msleep(100);
674 tuner_reg[0] = 0x60;
675 tuner_reg[1] = 0x3c;
676 i2c_transfer(priv->i2c_adap, &msg, 1);
677
678 msleep(163);
679 tuner_reg[0] = 0x50;
680 tuner_reg[1] = 0x8f + (tda827xa_analog[i].gc3 << 4);
681 i2c_transfer(priv->i2c_adap, &msg, 1);
682
683 tuner_reg[0] = 0x80;
684 tuner_reg[1] = 0x28;
685 i2c_transfer(priv->i2c_adap, &msg, 1);
686
687 tuner_reg[0] = 0xb0;
688 tuner_reg[1] = 0x01;
689 i2c_transfer(priv->i2c_adap, &msg, 1);
690
691 tuner_reg[0] = 0xc0;
692 tuner_reg[1] = 0x19 + (priv->lpsel << 1);
693 i2c_transfer(priv->i2c_adap, &msg, 1);
694
695 priv->frequency = params->frequency;
696
697 return 0;
698 }
699
700 static void tda827xa_agcf(struct dvb_frontend *fe)
701 {
702 struct tda827x_priv *priv = fe->tuner_priv;
703 unsigned char data[] = {0x80, 0x2c};
704 struct i2c_msg msg = {.addr = priv->i2c_addr, .flags = 0,
705 .buf = data, .len = 2};
706 i2c_transfer(priv->i2c_adap, &msg, 1);
707 }
708
709 /* ------------------------------------------------------------------ */
710
711 static int tda827x_release(struct dvb_frontend *fe)
712 {
713 kfree(fe->tuner_priv);
714 fe->tuner_priv = NULL;
715 return 0;
716 }
717
718 static int tda827x_get_frequency(struct dvb_frontend *fe, u32 *frequency)
719 {
720 struct tda827x_priv *priv = fe->tuner_priv;
721 *frequency = priv->frequency;
722 return 0;
723 }
724
725 static int tda827x_get_bandwidth(struct dvb_frontend *fe, u32 *bandwidth)
726 {
727 struct tda827x_priv *priv = fe->tuner_priv;
728 *bandwidth = priv->bandwidth;
729 return 0;
730 }
731
732 static int tda827x_init(struct dvb_frontend *fe)
733 {
734 struct tda827x_priv *priv = fe->tuner_priv;
735 dprintk("%s:\n", __func__);
736 if (priv->cfg && priv->cfg->init)
737 priv->cfg->init(fe);
738
739 return 0;
740 }
741
742 static int tda827x_probe_version(struct dvb_frontend *fe);
743
744 static int tda827x_initial_init(struct dvb_frontend *fe)
745 {
746 int ret;
747 ret = tda827x_probe_version(fe);
748 if (ret)
749 return ret;
750 return fe->ops.tuner_ops.init(fe);
751 }
752
753 static int tda827x_initial_sleep(struct dvb_frontend *fe)
754 {
755 int ret;
756 ret = tda827x_probe_version(fe);
757 if (ret)
758 return ret;
759 return fe->ops.tuner_ops.sleep(fe);
760 }
761
762 static struct dvb_tuner_ops tda827xo_tuner_ops = {
763 .info = {
764 .name = "Philips TDA827X",
765 .frequency_min = 55000000,
766 .frequency_max = 860000000,
767 .frequency_step = 250000
768 },
769 .release = tda827x_release,
770 .init = tda827x_initial_init,
771 .sleep = tda827x_initial_sleep,
772 .set_params = tda827xo_set_params,
773 .set_analog_params = tda827xo_set_analog_params,
774 .get_frequency = tda827x_get_frequency,
775 .get_bandwidth = tda827x_get_bandwidth,
776 };
777
778 static struct dvb_tuner_ops tda827xa_tuner_ops = {
779 .info = {
780 .name = "Philips TDA827XA",
781 .frequency_min = 44000000,
782 .frequency_max = 906000000,
783 .frequency_step = 62500
784 },
785 .release = tda827x_release,
786 .init = tda827x_init,
787 .sleep = tda827xa_sleep,
788 .set_params = tda827xa_set_params,
789 .set_analog_params = tda827xa_set_analog_params,
790 .get_frequency = tda827x_get_frequency,
791 .get_bandwidth = tda827x_get_bandwidth,
792 };
793
794 static int tda827x_probe_version(struct dvb_frontend *fe)
795 { u8 data;
796 struct tda827x_priv *priv = fe->tuner_priv;
797 struct i2c_msg msg = { .addr = priv->i2c_addr, .flags = I2C_M_RD,
798 .buf = &data, .len = 1 };
799 if (fe->ops.i2c_gate_ctrl)
800 fe->ops.i2c_gate_ctrl(fe, 1);
801 if (i2c_transfer(priv->i2c_adap, &msg, 1) != 1) {
802 printk("%s: could not read from tuner at addr: 0x%02x\n",
803 __func__, msg.addr << 1);
804 return -EIO;
805 }
806 if ((data & 0x3c) == 0) {
807 dprintk("tda827x tuner found\n");
808 fe->ops.tuner_ops.init = tda827x_init;
809 fe->ops.tuner_ops.sleep = tda827xo_sleep;
810 if (priv->cfg)
811 priv->cfg->agcf = tda827xo_agcf;
812 } else {
813 dprintk("tda827xa tuner found\n");
814 memcpy(&fe->ops.tuner_ops, &tda827xa_tuner_ops, sizeof(struct dvb_tuner_ops));
815 if (priv->cfg)
816 priv->cfg->agcf = tda827xa_agcf;
817 }
818 return 0;
819 }
820
821 struct dvb_frontend *tda827x_attach(struct dvb_frontend *fe, int addr,
822 struct i2c_adapter *i2c,
823 struct tda827x_config *cfg)
824 {
825 struct tda827x_priv *priv = NULL;
826
827 dprintk("%s:\n", __func__);
828 priv = kzalloc(sizeof(struct tda827x_priv), GFP_KERNEL);
829 if (priv == NULL)
830 return NULL;
831
832 priv->i2c_addr = addr;
833 priv->i2c_adap = i2c;
834 priv->cfg = cfg;
835 memcpy(&fe->ops.tuner_ops, &tda827xo_tuner_ops, sizeof(struct dvb_tuner_ops));
836 fe->tuner_priv = priv;
837
838 dprintk("type set to %s\n", fe->ops.tuner_ops.info.name);
839
840 return fe;
841 }
842 EXPORT_SYMBOL_GPL(tda827x_attach);
843
844 MODULE_DESCRIPTION("DVB TDA827x driver");
845 MODULE_AUTHOR("Hartmut Hackmann <hartmut.hackmann@t-online.de>");
846 MODULE_AUTHOR("Michael Krufky <mkrufky@linuxtv.org>");
847 MODULE_LICENSE("GPL");
848
849 /*
850 * Overrides for Emacs so that we follow Linus's tabbing style.
851 * ---------------------------------------------------------------------------
852 * Local variables:
853 * c-basic-offset: 8
854 * End:
855 */
Nao low-level kernelspace/userspace library that runs on our robots, Nao-Team HTWK