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Merge branches 'for-4.11/upstream-fixes', 'for-4.12/accutouch', 'for-4.12/cp2112...
[mirror_ubuntu-artful-kernel.git] / drivers / media / tuners / tda827x.c
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
17 #include <linux/module.h>
18 #include <linux/slab.h>
19 #include <asm/types.h>
20 #include <linux/dvb/frontend.h>
21 #include <linux/videodev2.h>
22
23 #include "tda827x.h"
24
25 static int debug;
26 module_param(debug, int, 0644);
27 MODULE_PARM_DESC(debug, "Turn on/off frontend debugging (default:off).");
28
29 #define dprintk(args...) \
30 do { \
31 if (debug) printk(KERN_DEBUG "tda827x: " args); \
32 } while (0)
33
34 struct tda827x_priv {
35 int i2c_addr;
36 struct i2c_adapter *i2c_adap;
37 struct tda827x_config *cfg;
38
39 unsigned int sgIF;
40 unsigned char lpsel;
41
42 u32 frequency;
43 u32 bandwidth;
44 };
45
46 static void tda827x_set_std(struct dvb_frontend *fe,
47 struct analog_parameters *params)
48 {
49 struct tda827x_priv *priv = fe->tuner_priv;
50 char *mode;
51
52 priv->lpsel = 0;
53 if (params->std & V4L2_STD_MN) {
54 priv->sgIF = 92;
55 priv->lpsel = 1;
56 mode = "MN";
57 } else if (params->std & V4L2_STD_B) {
58 priv->sgIF = 108;
59 mode = "B";
60 } else if (params->std & V4L2_STD_GH) {
61 priv->sgIF = 124;
62 mode = "GH";
63 } else if (params->std & V4L2_STD_PAL_I) {
64 priv->sgIF = 124;
65 mode = "I";
66 } else if (params->std & V4L2_STD_DK) {
67 priv->sgIF = 124;
68 mode = "DK";
69 } else if (params->std & V4L2_STD_SECAM_L) {
70 priv->sgIF = 124;
71 mode = "L";
72 } else if (params->std & V4L2_STD_SECAM_LC) {
73 priv->sgIF = 20;
74 mode = "LC";
75 } else {
76 priv->sgIF = 124;
77 mode = "xx";
78 }
79
80 if (params->mode == V4L2_TUNER_RADIO) {
81 priv->sgIF = 88; /* if frequency is 5.5 MHz */
82 dprintk("setting tda827x to radio FM\n");
83 } else
84 dprintk("setting tda827x to system %s\n", mode);
85 }
86
87
88 /* ------------------------------------------------------------------ */
89
90 struct tda827x_data {
91 u32 lomax;
92 u8 spd;
93 u8 bs;
94 u8 bp;
95 u8 cp;
96 u8 gc3;
97 u8 div1p5;
98 };
99
100 static const struct tda827x_data tda827x_table[] = {
101 { .lomax = 62000000, .spd = 3, .bs = 2, .bp = 0, .cp = 0, .gc3 = 3, .div1p5 = 1},
102 { .lomax = 66000000, .spd = 3, .bs = 3, .bp = 0, .cp = 0, .gc3 = 3, .div1p5 = 1},
103 { .lomax = 76000000, .spd = 3, .bs = 1, .bp = 0, .cp = 0, .gc3 = 3, .div1p5 = 0},
104 { .lomax = 84000000, .spd = 3, .bs = 2, .bp = 0, .cp = 0, .gc3 = 3, .div1p5 = 0},
105 { .lomax = 93000000, .spd = 3, .bs = 2, .bp = 0, .cp = 0, .gc3 = 1, .div1p5 = 0},
106 { .lomax = 98000000, .spd = 3, .bs = 3, .bp = 0, .cp = 0, .gc3 = 1, .div1p5 = 0},
107 { .lomax = 109000000, .spd = 3, .bs = 3, .bp = 1, .cp = 0, .gc3 = 1, .div1p5 = 0},
108 { .lomax = 123000000, .spd = 2, .bs = 2, .bp = 1, .cp = 0, .gc3 = 1, .div1p5 = 1},
109 { .lomax = 133000000, .spd = 2, .bs = 3, .bp = 1, .cp = 0, .gc3 = 1, .div1p5 = 1},
110 { .lomax = 151000000, .spd = 2, .bs = 1, .bp = 1, .cp = 0, .gc3 = 1, .div1p5 = 0},
111 { .lomax = 154000000, .spd = 2, .bs = 2, .bp = 1, .cp = 0, .gc3 = 1, .div1p5 = 0},
112 { .lomax = 181000000, .spd = 2, .bs = 2, .bp = 1, .cp = 0, .gc3 = 0, .div1p5 = 0},
113 { .lomax = 185000000, .spd = 2, .bs = 2, .bp = 2, .cp = 0, .gc3 = 1, .div1p5 = 0},
114 { .lomax = 217000000, .spd = 2, .bs = 3, .bp = 2, .cp = 0, .gc3 = 1, .div1p5 = 0},
115 { .lomax = 244000000, .spd = 1, .bs = 2, .bp = 2, .cp = 0, .gc3 = 1, .div1p5 = 1},
116 { .lomax = 265000000, .spd = 1, .bs = 3, .bp = 2, .cp = 0, .gc3 = 1, .div1p5 = 1},
117 { .lomax = 302000000, .spd = 1, .bs = 1, .bp = 2, .cp = 0, .gc3 = 1, .div1p5 = 0},
118 { .lomax = 324000000, .spd = 1, .bs = 2, .bp = 2, .cp = 0, .gc3 = 1, .div1p5 = 0},
119 { .lomax = 370000000, .spd = 1, .bs = 2, .bp = 3, .cp = 0, .gc3 = 1, .div1p5 = 0},
120 { .lomax = 454000000, .spd = 1, .bs = 3, .bp = 3, .cp = 0, .gc3 = 1, .div1p5 = 0},
121 { .lomax = 493000000, .spd = 0, .bs = 2, .bp = 3, .cp = 0, .gc3 = 1, .div1p5 = 1},
122 { .lomax = 530000000, .spd = 0, .bs = 3, .bp = 3, .cp = 0, .gc3 = 1, .div1p5 = 1},
123 { .lomax = 554000000, .spd = 0, .bs = 1, .bp = 3, .cp = 0, .gc3 = 1, .div1p5 = 0},
124 { .lomax = 604000000, .spd = 0, .bs = 1, .bp = 4, .cp = 0, .gc3 = 0, .div1p5 = 0},
125 { .lomax = 696000000, .spd = 0, .bs = 2, .bp = 4, .cp = 0, .gc3 = 0, .div1p5 = 0},
126 { .lomax = 740000000, .spd = 0, .bs = 2, .bp = 4, .cp = 1, .gc3 = 0, .div1p5 = 0},
127 { .lomax = 820000000, .spd = 0, .bs = 3, .bp = 4, .cp = 0, .gc3 = 0, .div1p5 = 0},
128 { .lomax = 865000000, .spd = 0, .bs = 3, .bp = 4, .cp = 1, .gc3 = 0, .div1p5 = 0},
129 { .lomax = 0, .spd = 0, .bs = 0, .bp = 0, .cp = 0, .gc3 = 0, .div1p5 = 0}
130 };
131
132 static int tuner_transfer(struct dvb_frontend *fe,
133 struct i2c_msg *msg,
134 const int size)
135 {
136 int rc;
137 struct tda827x_priv *priv = fe->tuner_priv;
138
139 if (fe->ops.i2c_gate_ctrl)
140 fe->ops.i2c_gate_ctrl(fe, 1);
141 rc = i2c_transfer(priv->i2c_adap, msg, size);
142 if (fe->ops.i2c_gate_ctrl)
143 fe->ops.i2c_gate_ctrl(fe, 0);
144
145 if (rc >= 0 && rc != size)
146 return -EIO;
147
148 return rc;
149 }
150
151 static int tda827xo_set_params(struct dvb_frontend *fe)
152 {
153 struct dtv_frontend_properties *c = &fe->dtv_property_cache;
154 struct tda827x_priv *priv = fe->tuner_priv;
155 u8 buf[14];
156 int rc;
157
158 struct i2c_msg msg = { .addr = priv->i2c_addr, .flags = 0,
159 .buf = buf, .len = sizeof(buf) };
160 int i, tuner_freq, if_freq;
161 u32 N;
162
163 dprintk("%s:\n", __func__);
164 if (c->bandwidth_hz == 0) {
165 if_freq = 5000000;
166 } else if (c->bandwidth_hz <= 6000000) {
167 if_freq = 4000000;
168 } else if (c->bandwidth_hz <= 7000000) {
169 if_freq = 4500000;
170 } else { /* 8 MHz */
171 if_freq = 5000000;
172 }
173 tuner_freq = c->frequency;
174
175 i = 0;
176 while (tda827x_table[i].lomax < tuner_freq) {
177 if (tda827x_table[i + 1].lomax == 0)
178 break;
179 i++;
180 }
181
182 tuner_freq += if_freq;
183
184 N = ((tuner_freq + 125000) / 250000) << (tda827x_table[i].spd + 2);
185 buf[0] = 0;
186 buf[1] = (N>>8) | 0x40;
187 buf[2] = N & 0xff;
188 buf[3] = 0;
189 buf[4] = 0x52;
190 buf[5] = (tda827x_table[i].spd << 6) + (tda827x_table[i].div1p5 << 5) +
191 (tda827x_table[i].bs << 3) +
192 tda827x_table[i].bp;
193 buf[6] = (tda827x_table[i].gc3 << 4) + 0x8f;
194 buf[7] = 0xbf;
195 buf[8] = 0x2a;
196 buf[9] = 0x05;
197 buf[10] = 0xff;
198 buf[11] = 0x00;
199 buf[12] = 0x00;
200 buf[13] = 0x40;
201
202 msg.len = 14;
203 rc = tuner_transfer(fe, &msg, 1);
204 if (rc < 0)
205 goto err;
206
207 msleep(500);
208 /* correct CP value */
209 buf[0] = 0x30;
210 buf[1] = 0x50 + tda827x_table[i].cp;
211 msg.len = 2;
212
213 rc = tuner_transfer(fe, &msg, 1);
214 if (rc < 0)
215 goto err;
216
217 priv->frequency = c->frequency;
218 priv->bandwidth = c->bandwidth_hz;
219
220 return 0;
221
222 err:
223 printk(KERN_ERR "%s: could not write to tuner at addr: 0x%02x\n",
224 __func__, priv->i2c_addr << 1);
225 return rc;
226 }
227
228 static int tda827xo_sleep(struct dvb_frontend *fe)
229 {
230 struct tda827x_priv *priv = fe->tuner_priv;
231 static u8 buf[] = { 0x30, 0xd0 };
232 struct i2c_msg msg = { .addr = priv->i2c_addr, .flags = 0,
233 .buf = buf, .len = sizeof(buf) };
234
235 dprintk("%s:\n", __func__);
236 tuner_transfer(fe, &msg, 1);
237
238 if (priv->cfg && priv->cfg->sleep)
239 priv->cfg->sleep(fe);
240
241 return 0;
242 }
243
244 /* ------------------------------------------------------------------ */
245
246 static int tda827xo_set_analog_params(struct dvb_frontend *fe,
247 struct analog_parameters *params)
248 {
249 unsigned char tuner_reg[8];
250 unsigned char reg2[2];
251 u32 N;
252 int i;
253 struct tda827x_priv *priv = fe->tuner_priv;
254 struct i2c_msg msg = { .addr = priv->i2c_addr, .flags = 0 };
255 unsigned int freq = params->frequency;
256
257 tda827x_set_std(fe, params);
258
259 if (params->mode == V4L2_TUNER_RADIO)
260 freq = freq / 1000;
261
262 N = freq + priv->sgIF;
263
264 i = 0;
265 while (tda827x_table[i].lomax < N * 62500) {
266 if (tda827x_table[i + 1].lomax == 0)
267 break;
268 i++;
269 }
270
271 N = N << tda827x_table[i].spd;
272
273 tuner_reg[0] = 0;
274 tuner_reg[1] = (unsigned char)(N>>8);
275 tuner_reg[2] = (unsigned char) N;
276 tuner_reg[3] = 0x40;
277 tuner_reg[4] = 0x52 + (priv->lpsel << 5);
278 tuner_reg[5] = (tda827x_table[i].spd << 6) +
279 (tda827x_table[i].div1p5 << 5) +
280 (tda827x_table[i].bs << 3) + tda827x_table[i].bp;
281 tuner_reg[6] = 0x8f + (tda827x_table[i].gc3 << 4);
282 tuner_reg[7] = 0x8f;
283
284 msg.buf = tuner_reg;
285 msg.len = 8;
286 tuner_transfer(fe, &msg, 1);
287
288 msg.buf = reg2;
289 msg.len = 2;
290 reg2[0] = 0x80;
291 reg2[1] = 0;
292 tuner_transfer(fe, &msg, 1);
293
294 reg2[0] = 0x60;
295 reg2[1] = 0xbf;
296 tuner_transfer(fe, &msg, 1);
297
298 reg2[0] = 0x30;
299 reg2[1] = tuner_reg[4] + 0x80;
300 tuner_transfer(fe, &msg, 1);
301
302 msleep(1);
303 reg2[0] = 0x30;
304 reg2[1] = tuner_reg[4] + 4;
305 tuner_transfer(fe, &msg, 1);
306
307 msleep(1);
308 reg2[0] = 0x30;
309 reg2[1] = tuner_reg[4];
310 tuner_transfer(fe, &msg, 1);
311
312 msleep(550);
313 reg2[0] = 0x30;
314 reg2[1] = (tuner_reg[4] & 0xfc) + tda827x_table[i].cp;
315 tuner_transfer(fe, &msg, 1);
316
317 reg2[0] = 0x60;
318 reg2[1] = 0x3f;
319 tuner_transfer(fe, &msg, 1);
320
321 reg2[0] = 0x80;
322 reg2[1] = 0x08; /* Vsync en */
323 tuner_transfer(fe, &msg, 1);
324
325 priv->frequency = params->frequency;
326
327 return 0;
328 }
329
330 static void tda827xo_agcf(struct dvb_frontend *fe)
331 {
332 struct tda827x_priv *priv = fe->tuner_priv;
333 unsigned char data[] = { 0x80, 0x0c };
334 struct i2c_msg msg = { .addr = priv->i2c_addr, .flags = 0,
335 .buf = data, .len = 2};
336
337 tuner_transfer(fe, &msg, 1);
338 }
339
340 /* ------------------------------------------------------------------ */
341
342 struct tda827xa_data {
343 u32 lomax;
344 u8 svco;
345 u8 spd;
346 u8 scr;
347 u8 sbs;
348 u8 gc3;
349 };
350
351 static struct tda827xa_data tda827xa_dvbt[] = {
352 { .lomax = 56875000, .svco = 3, .spd = 4, .scr = 0, .sbs = 0, .gc3 = 1},
353 { .lomax = 67250000, .svco = 0, .spd = 3, .scr = 0, .sbs = 0, .gc3 = 1},
354 { .lomax = 81250000, .svco = 1, .spd = 3, .scr = 0, .sbs = 0, .gc3 = 1},
355 { .lomax = 97500000, .svco = 2, .spd = 3, .scr = 0, .sbs = 0, .gc3 = 1},
356 { .lomax = 113750000, .svco = 3, .spd = 3, .scr = 0, .sbs = 1, .gc3 = 1},
357 { .lomax = 134500000, .svco = 0, .spd = 2, .scr = 0, .sbs = 1, .gc3 = 1},
358 { .lomax = 154000000, .svco = 1, .spd = 2, .scr = 0, .sbs = 1, .gc3 = 1},
359 { .lomax = 162500000, .svco = 1, .spd = 2, .scr = 0, .sbs = 1, .gc3 = 1},
360 { .lomax = 183000000, .svco = 2, .spd = 2, .scr = 0, .sbs = 1, .gc3 = 1},
361 { .lomax = 195000000, .svco = 2, .spd = 2, .scr = 0, .sbs = 2, .gc3 = 1},
362 { .lomax = 227500000, .svco = 3, .spd = 2, .scr = 0, .sbs = 2, .gc3 = 1},
363 { .lomax = 269000000, .svco = 0, .spd = 1, .scr = 0, .sbs = 2, .gc3 = 1},
364 { .lomax = 290000000, .svco = 1, .spd = 1, .scr = 0, .sbs = 2, .gc3 = 1},
365 { .lomax = 325000000, .svco = 1, .spd = 1, .scr = 0, .sbs = 3, .gc3 = 1},
366 { .lomax = 390000000, .svco = 2, .spd = 1, .scr = 0, .sbs = 3, .gc3 = 1},
367 { .lomax = 455000000, .svco = 3, .spd = 1, .scr = 0, .sbs = 3, .gc3 = 1},
368 { .lomax = 520000000, .svco = 0, .spd = 0, .scr = 0, .sbs = 3, .gc3 = 1},
369 { .lomax = 538000000, .svco = 0, .spd = 0, .scr = 1, .sbs = 3, .gc3 = 1},
370 { .lomax = 550000000, .svco = 1, .spd = 0, .scr = 0, .sbs = 3, .gc3 = 1},
371 { .lomax = 620000000, .svco = 1, .spd = 0, .scr = 0, .sbs = 4, .gc3 = 0},
372 { .lomax = 650000000, .svco = 1, .spd = 0, .scr = 1, .sbs = 4, .gc3 = 0},
373 { .lomax = 700000000, .svco = 2, .spd = 0, .scr = 0, .sbs = 4, .gc3 = 0},
374 { .lomax = 780000000, .svco = 2, .spd = 0, .scr = 1, .sbs = 4, .gc3 = 0},
375 { .lomax = 820000000, .svco = 3, .spd = 0, .scr = 0, .sbs = 4, .gc3 = 0},
376 { .lomax = 870000000, .svco = 3, .spd = 0, .scr = 1, .sbs = 4, .gc3 = 0},
377 { .lomax = 911000000, .svco = 3, .spd = 0, .scr = 2, .sbs = 4, .gc3 = 0},
378 { .lomax = 0, .svco = 0, .spd = 0, .scr = 0, .sbs = 0, .gc3 = 0}
379 };
380
381 static struct tda827xa_data tda827xa_dvbc[] = {
382 { .lomax = 50125000, .svco = 2, .spd = 4, .scr = 2, .sbs = 0, .gc3 = 3},
383 { .lomax = 58500000, .svco = 3, .spd = 4, .scr = 2, .sbs = 0, .gc3 = 3},
384 { .lomax = 69250000, .svco = 0, .spd = 3, .scr = 2, .sbs = 0, .gc3 = 3},
385 { .lomax = 83625000, .svco = 1, .spd = 3, .scr = 2, .sbs = 0, .gc3 = 3},
386 { .lomax = 97500000, .svco = 2, .spd = 3, .scr = 2, .sbs = 0, .gc3 = 3},
387 { .lomax = 100250000, .svco = 2, .spd = 3, .scr = 2, .sbs = 1, .gc3 = 1},
388 { .lomax = 117000000, .svco = 3, .spd = 3, .scr = 2, .sbs = 1, .gc3 = 1},
389 { .lomax = 138500000, .svco = 0, .spd = 2, .scr = 2, .sbs = 1, .gc3 = 1},
390 { .lomax = 167250000, .svco = 1, .spd = 2, .scr = 2, .sbs = 1, .gc3 = 1},
391 { .lomax = 187000000, .svco = 2, .spd = 2, .scr = 2, .sbs = 1, .gc3 = 1},
392 { .lomax = 200500000, .svco = 2, .spd = 2, .scr = 2, .sbs = 2, .gc3 = 1},
393 { .lomax = 234000000, .svco = 3, .spd = 2, .scr = 2, .sbs = 2, .gc3 = 3},
394 { .lomax = 277000000, .svco = 0, .spd = 1, .scr = 2, .sbs = 2, .gc3 = 3},
395 { .lomax = 325000000, .svco = 1, .spd = 1, .scr = 2, .sbs = 2, .gc3 = 1},
396 { .lomax = 334500000, .svco = 1, .spd = 1, .scr = 2, .sbs = 3, .gc3 = 3},
397 { .lomax = 401000000, .svco = 2, .spd = 1, .scr = 2, .sbs = 3, .gc3 = 3},
398 { .lomax = 468000000, .svco = 3, .spd = 1, .scr = 2, .sbs = 3, .gc3 = 1},
399 { .lomax = 535000000, .svco = 0, .spd = 0, .scr = 1, .sbs = 3, .gc3 = 1},
400 { .lomax = 554000000, .svco = 0, .spd = 0, .scr = 2, .sbs = 3, .gc3 = 1},
401 { .lomax = 638000000, .svco = 1, .spd = 0, .scr = 1, .sbs = 4, .gc3 = 1},
402 { .lomax = 669000000, .svco = 1, .spd = 0, .scr = 2, .sbs = 4, .gc3 = 1},
403 { .lomax = 720000000, .svco = 2, .spd = 0, .scr = 1, .sbs = 4, .gc3 = 1},
404 { .lomax = 802000000, .svco = 2, .spd = 0, .scr = 2, .sbs = 4, .gc3 = 1},
405 { .lomax = 835000000, .svco = 3, .spd = 0, .scr = 1, .sbs = 4, .gc3 = 1},
406 { .lomax = 885000000, .svco = 3, .spd = 0, .scr = 1, .sbs = 4, .gc3 = 1},
407 { .lomax = 911000000, .svco = 3, .spd = 0, .scr = 2, .sbs = 4, .gc3 = 1},
408 { .lomax = 0, .svco = 0, .spd = 0, .scr = 0, .sbs = 0, .gc3 = 0}
409 };
410
411 static struct tda827xa_data tda827xa_analog[] = {
412 { .lomax = 56875000, .svco = 3, .spd = 4, .scr = 0, .sbs = 0, .gc3 = 3},
413 { .lomax = 67250000, .svco = 0, .spd = 3, .scr = 0, .sbs = 0, .gc3 = 3},
414 { .lomax = 81250000, .svco = 1, .spd = 3, .scr = 0, .sbs = 0, .gc3 = 3},
415 { .lomax = 97500000, .svco = 2, .spd = 3, .scr = 0, .sbs = 0, .gc3 = 3},
416 { .lomax = 113750000, .svco = 3, .spd = 3, .scr = 0, .sbs = 1, .gc3 = 1},
417 { .lomax = 134500000, .svco = 0, .spd = 2, .scr = 0, .sbs = 1, .gc3 = 1},
418 { .lomax = 154000000, .svco = 1, .spd = 2, .scr = 0, .sbs = 1, .gc3 = 1},
419 { .lomax = 162500000, .svco = 1, .spd = 2, .scr = 0, .sbs = 1, .gc3 = 1},
420 { .lomax = 183000000, .svco = 2, .spd = 2, .scr = 0, .sbs = 1, .gc3 = 1},
421 { .lomax = 195000000, .svco = 2, .spd = 2, .scr = 0, .sbs = 2, .gc3 = 1},
422 { .lomax = 227500000, .svco = 3, .spd = 2, .scr = 0, .sbs = 2, .gc3 = 3},
423 { .lomax = 269000000, .svco = 0, .spd = 1, .scr = 0, .sbs = 2, .gc3 = 3},
424 { .lomax = 325000000, .svco = 1, .spd = 1, .scr = 0, .sbs = 2, .gc3 = 1},
425 { .lomax = 390000000, .svco = 2, .spd = 1, .scr = 0, .sbs = 3, .gc3 = 3},
426 { .lomax = 455000000, .svco = 3, .spd = 1, .scr = 0, .sbs = 3, .gc3 = 3},
427 { .lomax = 520000000, .svco = 0, .spd = 0, .scr = 0, .sbs = 3, .gc3 = 1},
428 { .lomax = 538000000, .svco = 0, .spd = 0, .scr = 1, .sbs = 3, .gc3 = 1},
429 { .lomax = 554000000, .svco = 1, .spd = 0, .scr = 0, .sbs = 3, .gc3 = 1},
430 { .lomax = 620000000, .svco = 1, .spd = 0, .scr = 0, .sbs = 4, .gc3 = 0},
431 { .lomax = 650000000, .svco = 1, .spd = 0, .scr = 1, .sbs = 4, .gc3 = 0},
432 { .lomax = 700000000, .svco = 2, .spd = 0, .scr = 0, .sbs = 4, .gc3 = 0},
433 { .lomax = 780000000, .svco = 2, .spd = 0, .scr = 1, .sbs = 4, .gc3 = 0},
434 { .lomax = 820000000, .svco = 3, .spd = 0, .scr = 0, .sbs = 4, .gc3 = 0},
435 { .lomax = 870000000, .svco = 3, .spd = 0, .scr = 1, .sbs = 4, .gc3 = 0},
436 { .lomax = 911000000, .svco = 3, .spd = 0, .scr = 2, .sbs = 4, .gc3 = 0},
437 { .lomax = 0, .svco = 0, .spd = 0, .scr = 0, .sbs = 0, .gc3 = 0}
438 };
439
440 static int tda827xa_sleep(struct dvb_frontend *fe)
441 {
442 struct tda827x_priv *priv = fe->tuner_priv;
443 static u8 buf[] = { 0x30, 0x90 };
444 struct i2c_msg msg = { .addr = priv->i2c_addr, .flags = 0,
445 .buf = buf, .len = sizeof(buf) };
446
447 dprintk("%s:\n", __func__);
448
449 tuner_transfer(fe, &msg, 1);
450
451 if (priv->cfg && priv->cfg->sleep)
452 priv->cfg->sleep(fe);
453
454 return 0;
455 }
456
457 static void tda827xa_lna_gain(struct dvb_frontend *fe, int high,
458 struct analog_parameters *params)
459 {
460 struct tda827x_priv *priv = fe->tuner_priv;
461 unsigned char buf[] = {0x22, 0x01};
462 int arg;
463 int gp_func;
464 struct i2c_msg msg = { .flags = 0, .buf = buf, .len = sizeof(buf) };
465
466 if (NULL == priv->cfg) {
467 dprintk("tda827x_config not defined, cannot set LNA gain!\n");
468 return;
469 }
470 msg.addr = priv->cfg->switch_addr;
471 if (priv->cfg->config) {
472 if (high)
473 dprintk("setting LNA to high gain\n");
474 else
475 dprintk("setting LNA to low gain\n");
476 }
477 switch (priv->cfg->config) {
478 case TDA8290_LNA_OFF: /* no LNA */
479 break;
480 case TDA8290_LNA_GP0_HIGH_ON: /* switch is GPIO 0 of tda8290 */
481 case TDA8290_LNA_GP0_HIGH_OFF:
482 if (params == NULL) {
483 gp_func = 0;
484 arg = 0;
485 } else {
486 /* turn Vsync on */
487 gp_func = 1;
488 if (params->std & V4L2_STD_MN)
489 arg = 1;
490 else
491 arg = 0;
492 }
493 if (fe->callback)
494 fe->callback(priv->i2c_adap->algo_data,
495 DVB_FRONTEND_COMPONENT_TUNER,
496 gp_func, arg);
497 buf[1] = high ? 0 : 1;
498 if (priv->cfg->config == TDA8290_LNA_GP0_HIGH_OFF)
499 buf[1] = high ? 1 : 0;
500 tuner_transfer(fe, &msg, 1);
501 break;
502 case TDA8290_LNA_ON_BRIDGE: /* switch with GPIO of saa713x */
503 if (fe->callback)
504 fe->callback(priv->i2c_adap->algo_data,
505 DVB_FRONTEND_COMPONENT_TUNER, 0, high);
506 break;
507 }
508 }
509
510 static int tda827xa_set_params(struct dvb_frontend *fe)
511 {
512 struct dtv_frontend_properties *c = &fe->dtv_property_cache;
513 struct tda827x_priv *priv = fe->tuner_priv;
514 struct tda827xa_data *frequency_map = tda827xa_dvbt;
515 u8 buf[11];
516
517 struct i2c_msg msg = { .addr = priv->i2c_addr, .flags = 0,
518 .buf = buf, .len = sizeof(buf) };
519
520 int i, tuner_freq, if_freq, rc;
521 u32 N;
522
523 dprintk("%s:\n", __func__);
524
525 tda827xa_lna_gain(fe, 1, NULL);
526 msleep(20);
527
528 if (c->bandwidth_hz == 0) {
529 if_freq = 5000000;
530 } else if (c->bandwidth_hz <= 6000000) {
531 if_freq = 4000000;
532 } else if (c->bandwidth_hz <= 7000000) {
533 if_freq = 4500000;
534 } else { /* 8 MHz */
535 if_freq = 5000000;
536 }
537 tuner_freq = c->frequency;
538
539 switch (c->delivery_system) {
540 case SYS_DVBC_ANNEX_A:
541 case SYS_DVBC_ANNEX_C:
542 dprintk("%s select tda827xa_dvbc\n", __func__);
543 frequency_map = tda827xa_dvbc;
544 break;
545 default:
546 break;
547 }
548
549 i = 0;
550 while (frequency_map[i].lomax < tuner_freq) {
551 if (frequency_map[i + 1].lomax == 0)
552 break;
553 i++;
554 }
555
556 tuner_freq += if_freq;
557
558 N = ((tuner_freq + 31250) / 62500) << frequency_map[i].spd;
559 buf[0] = 0; // subaddress
560 buf[1] = N >> 8;
561 buf[2] = N & 0xff;
562 buf[3] = 0;
563 buf[4] = 0x16;
564 buf[5] = (frequency_map[i].spd << 5) + (frequency_map[i].svco << 3) +
565 frequency_map[i].sbs;
566 buf[6] = 0x4b + (frequency_map[i].gc3 << 4);
567 buf[7] = 0x1c;
568 buf[8] = 0x06;
569 buf[9] = 0x24;
570 buf[10] = 0x00;
571 msg.len = 11;
572 rc = tuner_transfer(fe, &msg, 1);
573 if (rc < 0)
574 goto err;
575
576 buf[0] = 0x90;
577 buf[1] = 0xff;
578 buf[2] = 0x60;
579 buf[3] = 0x00;
580 buf[4] = 0x59; // lpsel, for 6MHz + 2
581 msg.len = 5;
582 rc = tuner_transfer(fe, &msg, 1);
583 if (rc < 0)
584 goto err;
585
586 buf[0] = 0xa0;
587 buf[1] = 0x40;
588 msg.len = 2;
589 rc = tuner_transfer(fe, &msg, 1);
590 if (rc < 0)
591 goto err;
592
593 msleep(11);
594 msg.flags = I2C_M_RD;
595 rc = tuner_transfer(fe, &msg, 1);
596 if (rc < 0)
597 goto err;
598 msg.flags = 0;
599
600 buf[1] >>= 4;
601 dprintk("tda8275a AGC2 gain is: %d\n", buf[1]);
602 if ((buf[1]) < 2) {
603 tda827xa_lna_gain(fe, 0, NULL);
604 buf[0] = 0x60;
605 buf[1] = 0x0c;
606 rc = tuner_transfer(fe, &msg, 1);
607 if (rc < 0)
608 goto err;
609 }
610
611 buf[0] = 0xc0;
612 buf[1] = 0x99; // lpsel, for 6MHz + 2
613 rc = tuner_transfer(fe, &msg, 1);
614 if (rc < 0)
615 goto err;
616
617 buf[0] = 0x60;
618 buf[1] = 0x3c;
619 rc = tuner_transfer(fe, &msg, 1);
620 if (rc < 0)
621 goto err;
622
623 /* correct CP value */
624 buf[0] = 0x30;
625 buf[1] = 0x10 + frequency_map[i].scr;
626 rc = tuner_transfer(fe, &msg, 1);
627 if (rc < 0)
628 goto err;
629
630 msleep(163);
631 buf[0] = 0xc0;
632 buf[1] = 0x39; // lpsel, for 6MHz + 2
633 rc = tuner_transfer(fe, &msg, 1);
634 if (rc < 0)
635 goto err;
636
637 msleep(3);
638 /* freeze AGC1 */
639 buf[0] = 0x50;
640 buf[1] = 0x4f + (frequency_map[i].gc3 << 4);
641 rc = tuner_transfer(fe, &msg, 1);
642 if (rc < 0)
643 goto err;
644
645 priv->frequency = c->frequency;
646 priv->bandwidth = c->bandwidth_hz;
647
648 return 0;
649
650 err:
651 printk(KERN_ERR "%s: could not write to tuner at addr: 0x%02x\n",
652 __func__, priv->i2c_addr << 1);
653 return rc;
654 }
655
656
657 static int tda827xa_set_analog_params(struct dvb_frontend *fe,
658 struct analog_parameters *params)
659 {
660 unsigned char tuner_reg[11];
661 u32 N;
662 int i;
663 struct tda827x_priv *priv = fe->tuner_priv;
664 struct i2c_msg msg = { .addr = priv->i2c_addr, .flags = 0,
665 .buf = tuner_reg, .len = sizeof(tuner_reg) };
666 unsigned int freq = params->frequency;
667
668 tda827x_set_std(fe, params);
669
670 tda827xa_lna_gain(fe, 1, params);
671 msleep(10);
672
673 if (params->mode == V4L2_TUNER_RADIO)
674 freq = freq / 1000;
675
676 N = freq + priv->sgIF;
677
678 i = 0;
679 while (tda827xa_analog[i].lomax < N * 62500) {
680 if (tda827xa_analog[i + 1].lomax == 0)
681 break;
682 i++;
683 }
684
685 N = N << tda827xa_analog[i].spd;
686
687 tuner_reg[0] = 0;
688 tuner_reg[1] = (unsigned char)(N>>8);
689 tuner_reg[2] = (unsigned char) N;
690 tuner_reg[3] = 0;
691 tuner_reg[4] = 0x16;
692 tuner_reg[5] = (tda827xa_analog[i].spd << 5) +
693 (tda827xa_analog[i].svco << 3) +
694 tda827xa_analog[i].sbs;
695 tuner_reg[6] = 0x8b + (tda827xa_analog[i].gc3 << 4);
696 tuner_reg[7] = 0x1c;
697 tuner_reg[8] = 4;
698 tuner_reg[9] = 0x20;
699 tuner_reg[10] = 0x00;
700 msg.len = 11;
701 tuner_transfer(fe, &msg, 1);
702
703 tuner_reg[0] = 0x90;
704 tuner_reg[1] = 0xff;
705 tuner_reg[2] = 0xe0;
706 tuner_reg[3] = 0;
707 tuner_reg[4] = 0x99 + (priv->lpsel << 1);
708 msg.len = 5;
709 tuner_transfer(fe, &msg, 1);
710
711 tuner_reg[0] = 0xa0;
712 tuner_reg[1] = 0xc0;
713 msg.len = 2;
714 tuner_transfer(fe, &msg, 1);
715
716 tuner_reg[0] = 0x30;
717 tuner_reg[1] = 0x10 + tda827xa_analog[i].scr;
718 tuner_transfer(fe, &msg, 1);
719
720 msg.flags = I2C_M_RD;
721 tuner_transfer(fe, &msg, 1);
722 msg.flags = 0;
723 tuner_reg[1] >>= 4;
724 dprintk("AGC2 gain is: %d\n", tuner_reg[1]);
725 if (tuner_reg[1] < 1)
726 tda827xa_lna_gain(fe, 0, params);
727
728 msleep(100);
729 tuner_reg[0] = 0x60;
730 tuner_reg[1] = 0x3c;
731 tuner_transfer(fe, &msg, 1);
732
733 msleep(163);
734 tuner_reg[0] = 0x50;
735 tuner_reg[1] = 0x8f + (tda827xa_analog[i].gc3 << 4);
736 tuner_transfer(fe, &msg, 1);
737
738 tuner_reg[0] = 0x80;
739 tuner_reg[1] = 0x28;
740 tuner_transfer(fe, &msg, 1);
741
742 tuner_reg[0] = 0xb0;
743 tuner_reg[1] = 0x01;
744 tuner_transfer(fe, &msg, 1);
745
746 tuner_reg[0] = 0xc0;
747 tuner_reg[1] = 0x19 + (priv->lpsel << 1);
748 tuner_transfer(fe, &msg, 1);
749
750 priv->frequency = params->frequency;
751
752 return 0;
753 }
754
755 static void tda827xa_agcf(struct dvb_frontend *fe)
756 {
757 struct tda827x_priv *priv = fe->tuner_priv;
758 unsigned char data[] = {0x80, 0x2c};
759 struct i2c_msg msg = {.addr = priv->i2c_addr, .flags = 0,
760 .buf = data, .len = 2};
761 tuner_transfer(fe, &msg, 1);
762 }
763
764 /* ------------------------------------------------------------------ */
765
766 static void tda827x_release(struct dvb_frontend *fe)
767 {
768 kfree(fe->tuner_priv);
769 fe->tuner_priv = NULL;
770 }
771
772 static int tda827x_get_frequency(struct dvb_frontend *fe, u32 *frequency)
773 {
774 struct tda827x_priv *priv = fe->tuner_priv;
775 *frequency = priv->frequency;
776 return 0;
777 }
778
779 static int tda827x_get_bandwidth(struct dvb_frontend *fe, u32 *bandwidth)
780 {
781 struct tda827x_priv *priv = fe->tuner_priv;
782 *bandwidth = priv->bandwidth;
783 return 0;
784 }
785
786 static int tda827x_init(struct dvb_frontend *fe)
787 {
788 struct tda827x_priv *priv = fe->tuner_priv;
789 dprintk("%s:\n", __func__);
790 if (priv->cfg && priv->cfg->init)
791 priv->cfg->init(fe);
792
793 return 0;
794 }
795
796 static int tda827x_probe_version(struct dvb_frontend *fe);
797
798 static int tda827x_initial_init(struct dvb_frontend *fe)
799 {
800 int ret;
801 ret = tda827x_probe_version(fe);
802 if (ret)
803 return ret;
804 return fe->ops.tuner_ops.init(fe);
805 }
806
807 static int tda827x_initial_sleep(struct dvb_frontend *fe)
808 {
809 int ret;
810 ret = tda827x_probe_version(fe);
811 if (ret)
812 return ret;
813 return fe->ops.tuner_ops.sleep(fe);
814 }
815
816 static const struct dvb_tuner_ops tda827xo_tuner_ops = {
817 .info = {
818 .name = "Philips TDA827X",
819 .frequency_min = 55000000,
820 .frequency_max = 860000000,
821 .frequency_step = 250000
822 },
823 .release = tda827x_release,
824 .init = tda827x_initial_init,
825 .sleep = tda827x_initial_sleep,
826 .set_params = tda827xo_set_params,
827 .set_analog_params = tda827xo_set_analog_params,
828 .get_frequency = tda827x_get_frequency,
829 .get_bandwidth = tda827x_get_bandwidth,
830 };
831
832 static const struct dvb_tuner_ops tda827xa_tuner_ops = {
833 .info = {
834 .name = "Philips TDA827XA",
835 .frequency_min = 44000000,
836 .frequency_max = 906000000,
837 .frequency_step = 62500
838 },
839 .release = tda827x_release,
840 .init = tda827x_init,
841 .sleep = tda827xa_sleep,
842 .set_params = tda827xa_set_params,
843 .set_analog_params = tda827xa_set_analog_params,
844 .get_frequency = tda827x_get_frequency,
845 .get_bandwidth = tda827x_get_bandwidth,
846 };
847
848 static int tda827x_probe_version(struct dvb_frontend *fe)
849 {
850 u8 data;
851 int rc;
852 struct tda827x_priv *priv = fe->tuner_priv;
853 struct i2c_msg msg = { .addr = priv->i2c_addr, .flags = I2C_M_RD,
854 .buf = &data, .len = 1 };
855
856 rc = tuner_transfer(fe, &msg, 1);
857
858 if (rc < 0) {
859 printk("%s: could not read from tuner at addr: 0x%02x\n",
860 __func__, msg.addr << 1);
861 return rc;
862 }
863 if ((data & 0x3c) == 0) {
864 dprintk("tda827x tuner found\n");
865 fe->ops.tuner_ops.init = tda827x_init;
866 fe->ops.tuner_ops.sleep = tda827xo_sleep;
867 if (priv->cfg)
868 priv->cfg->agcf = tda827xo_agcf;
869 } else {
870 dprintk("tda827xa tuner found\n");
871 memcpy(&fe->ops.tuner_ops, &tda827xa_tuner_ops, sizeof(struct dvb_tuner_ops));
872 if (priv->cfg)
873 priv->cfg->agcf = tda827xa_agcf;
874 }
875 return 0;
876 }
877
878 struct dvb_frontend *tda827x_attach(struct dvb_frontend *fe, int addr,
879 struct i2c_adapter *i2c,
880 struct tda827x_config *cfg)
881 {
882 struct tda827x_priv *priv = NULL;
883
884 dprintk("%s:\n", __func__);
885 priv = kzalloc(sizeof(struct tda827x_priv), GFP_KERNEL);
886 if (priv == NULL)
887 return NULL;
888
889 priv->i2c_addr = addr;
890 priv->i2c_adap = i2c;
891 priv->cfg = cfg;
892 memcpy(&fe->ops.tuner_ops, &tda827xo_tuner_ops, sizeof(struct dvb_tuner_ops));
893 fe->tuner_priv = priv;
894
895 dprintk("type set to %s\n", fe->ops.tuner_ops.info.name);
896
897 return fe;
898 }
899 EXPORT_SYMBOL_GPL(tda827x_attach);
900
901 MODULE_DESCRIPTION("DVB TDA827x driver");
902 MODULE_AUTHOR("Hartmut Hackmann <hartmut.hackmann@t-online.de>");
903 MODULE_AUTHOR("Michael Krufky <mkrufky@linuxtv.org>");
904 MODULE_LICENSE("GPL");
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