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path: root/drivers/media/common/tuners/tda827x.c
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Diffstat (limited to 'drivers/media/common/tuners/tda827x.c')
-rw-r--r--drivers/media/common/tuners/tda827x.c913
1 files changed, 913 insertions, 0 deletions
diff --git a/drivers/media/common/tuners/tda827x.c b/drivers/media/common/tuners/tda827x.c
new file mode 100644
index 00000000000..b21b6ea68b2
--- /dev/null
+++ b/drivers/media/common/tuners/tda827x.c
@@ -0,0 +1,913 @@
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 <linux/slab.h>
23#include <asm/types.h>
24#include <linux/dvb/frontend.h>
25#include <linux/videodev2.h>
26
27#include "tda827x.h"
28
29static int debug;
30module_param(debug, int, 0644);
31MODULE_PARM_DESC(debug, "Turn on/off frontend debugging (default:off).");
32
33#define dprintk(args...) \
34 do { \
35 if (debug) printk(KERN_DEBUG "tda827x: " args); \
36 } while (0)
37
38struct tda827x_priv {
39 int i2c_addr;
40 struct i2c_adapter *i2c_adap;
41 struct tda827x_config *cfg;
42
43 unsigned int sgIF;
44 unsigned char lpsel;
45
46 u32 frequency;
47 u32 bandwidth;
48};
49
50static void tda827x_set_std(struct dvb_frontend *fe,
51 struct analog_parameters *params)
52{
53 struct tda827x_priv *priv = fe->tuner_priv;
54 char *mode;
55
56 priv->lpsel = 0;
57 if (params->std & V4L2_STD_MN) {
58 priv->sgIF = 92;
59 priv->lpsel = 1;
60 mode = "MN";
61 } else if (params->std & V4L2_STD_B) {
62 priv->sgIF = 108;
63 mode = "B";
64 } else if (params->std & V4L2_STD_GH) {
65 priv->sgIF = 124;
66 mode = "GH";
67 } else if (params->std & V4L2_STD_PAL_I) {
68 priv->sgIF = 124;
69 mode = "I";
70 } else if (params->std & V4L2_STD_DK) {
71 priv->sgIF = 124;
72 mode = "DK";
73 } else if (params->std & V4L2_STD_SECAM_L) {
74 priv->sgIF = 124;
75 mode = "L";
76 } else if (params->std & V4L2_STD_SECAM_LC) {
77 priv->sgIF = 20;
78 mode = "LC";
79 } else {
80 priv->sgIF = 124;
81 mode = "xx";
82 }
83
84 if (params->mode == V4L2_TUNER_RADIO) {
85 priv->sgIF = 88; /* if frequency is 5.5 MHz */
86 dprintk("setting tda827x to radio FM\n");
87 } else
88 dprintk("setting tda827x to system %s\n", mode);
89}
90
91
92/* ------------------------------------------------------------------ */
93
94struct tda827x_data {
95 u32 lomax;
96 u8 spd;
97 u8 bs;
98 u8 bp;
99 u8 cp;
100 u8 gc3;
101 u8 div1p5;
102};
103
104static const struct tda827x_data tda827x_table[] = {
105 { .lomax = 62000000, .spd = 3, .bs = 2, .bp = 0, .cp = 0, .gc3 = 3, .div1p5 = 1},
106 { .lomax = 66000000, .spd = 3, .bs = 3, .bp = 0, .cp = 0, .gc3 = 3, .div1p5 = 1},
107 { .lomax = 76000000, .spd = 3, .bs = 1, .bp = 0, .cp = 0, .gc3 = 3, .div1p5 = 0},
108 { .lomax = 84000000, .spd = 3, .bs = 2, .bp = 0, .cp = 0, .gc3 = 3, .div1p5 = 0},
109 { .lomax = 93000000, .spd = 3, .bs = 2, .bp = 0, .cp = 0, .gc3 = 1, .div1p5 = 0},
110 { .lomax = 98000000, .spd = 3, .bs = 3, .bp = 0, .cp = 0, .gc3 = 1, .div1p5 = 0},
111 { .lomax = 109000000, .spd = 3, .bs = 3, .bp = 1, .cp = 0, .gc3 = 1, .div1p5 = 0},
112 { .lomax = 123000000, .spd = 2, .bs = 2, .bp = 1, .cp = 0, .gc3 = 1, .div1p5 = 1},
113 { .lomax = 133000000, .spd = 2, .bs = 3, .bp = 1, .cp = 0, .gc3 = 1, .div1p5 = 1},
114 { .lomax = 151000000, .spd = 2, .bs = 1, .bp = 1, .cp = 0, .gc3 = 1, .div1p5 = 0},
115 { .lomax = 154000000, .spd = 2, .bs = 2, .bp = 1, .cp = 0, .gc3 = 1, .div1p5 = 0},
116 { .lomax = 181000000, .spd = 2, .bs = 2, .bp = 1, .cp = 0, .gc3 = 0, .div1p5 = 0},
117 { .lomax = 185000000, .spd = 2, .bs = 2, .bp = 2, .cp = 0, .gc3 = 1, .div1p5 = 0},
118 { .lomax = 217000000, .spd = 2, .bs = 3, .bp = 2, .cp = 0, .gc3 = 1, .div1p5 = 0},
119 { .lomax = 244000000, .spd = 1, .bs = 2, .bp = 2, .cp = 0, .gc3 = 1, .div1p5 = 1},
120 { .lomax = 265000000, .spd = 1, .bs = 3, .bp = 2, .cp = 0, .gc3 = 1, .div1p5 = 1},
121 { .lomax = 302000000, .spd = 1, .bs = 1, .bp = 2, .cp = 0, .gc3 = 1, .div1p5 = 0},
122 { .lomax = 324000000, .spd = 1, .bs = 2, .bp = 2, .cp = 0, .gc3 = 1, .div1p5 = 0},
123 { .lomax = 370000000, .spd = 1, .bs = 2, .bp = 3, .cp = 0, .gc3 = 1, .div1p5 = 0},
124 { .lomax = 454000000, .spd = 1, .bs = 3, .bp = 3, .cp = 0, .gc3 = 1, .div1p5 = 0},
125 { .lomax = 493000000, .spd = 0, .bs = 2, .bp = 3, .cp = 0, .gc3 = 1, .div1p5 = 1},
126 { .lomax = 530000000, .spd = 0, .bs = 3, .bp = 3, .cp = 0, .gc3 = 1, .div1p5 = 1},
127 { .lomax = 554000000, .spd = 0, .bs = 1, .bp = 3, .cp = 0, .gc3 = 1, .div1p5 = 0},
128 { .lomax = 604000000, .spd = 0, .bs = 1, .bp = 4, .cp = 0, .gc3 = 0, .div1p5 = 0},
129 { .lomax = 696000000, .spd = 0, .bs = 2, .bp = 4, .cp = 0, .gc3 = 0, .div1p5 = 0},
130 { .lomax = 740000000, .spd = 0, .bs = 2, .bp = 4, .cp = 1, .gc3 = 0, .div1p5 = 0},
131 { .lomax = 820000000, .spd = 0, .bs = 3, .bp = 4, .cp = 0, .gc3 = 0, .div1p5 = 0},
132 { .lomax = 865000000, .spd = 0, .bs = 3, .bp = 4, .cp = 1, .gc3 = 0, .div1p5 = 0},
133 { .lomax = 0, .spd = 0, .bs = 0, .bp = 0, .cp = 0, .gc3 = 0, .div1p5 = 0}
134};
135
136static int tuner_transfer(struct dvb_frontend *fe,
137 struct i2c_msg *msg,
138 const int size)
139{
140 int rc;
141 struct tda827x_priv *priv = fe->tuner_priv;
142
143 if (fe->ops.i2c_gate_ctrl)
144 fe->ops.i2c_gate_ctrl(fe, 1);
145 rc = i2c_transfer(priv->i2c_adap, msg, size);
146 if (fe->ops.i2c_gate_ctrl)
147 fe->ops.i2c_gate_ctrl(fe, 0);
148
149 if (rc >= 0 && rc != size)
150 return -EIO;
151
152 return rc;
153}
154
155static int tda827xo_set_params(struct dvb_frontend *fe,
156 struct dvb_frontend_parameters *params)
157{
158 struct tda827x_priv *priv = fe->tuner_priv;
159 u8 buf[14];
160 int rc;
161
162 struct i2c_msg msg = { .addr = priv->i2c_addr, .flags = 0,
163 .buf = buf, .len = sizeof(buf) };
164 int i, tuner_freq, if_freq;
165 u32 N;
166
167 dprintk("%s:\n", __func__);
168 switch (params->u.ofdm.bandwidth) {
169 case BANDWIDTH_6_MHZ:
170 if_freq = 4000000;
171 break;
172 case BANDWIDTH_7_MHZ:
173 if_freq = 4500000;
174 break;
175 default: /* 8 MHz or Auto */
176 if_freq = 5000000;
177 break;
178 }
179 tuner_freq = params->frequency + if_freq;
180
181 i = 0;
182 while (tda827x_table[i].lomax < tuner_freq) {
183 if (tda827x_table[i + 1].lomax == 0)
184 break;
185 i++;
186 }
187
188 N = ((tuner_freq + 125000) / 250000) << (tda827x_table[i].spd + 2);
189 buf[0] = 0;
190 buf[1] = (N>>8) | 0x40;
191 buf[2] = N & 0xff;
192 buf[3] = 0;
193 buf[4] = 0x52;
194 buf[5] = (tda827x_table[i].spd << 6) + (tda827x_table[i].div1p5 << 5) +
195 (tda827x_table[i].bs << 3) +
196 tda827x_table[i].bp;
197 buf[6] = (tda827x_table[i].gc3 << 4) + 0x8f;
198 buf[7] = 0xbf;
199 buf[8] = 0x2a;
200 buf[9] = 0x05;
201 buf[10] = 0xff;
202 buf[11] = 0x00;
203 buf[12] = 0x00;
204 buf[13] = 0x40;
205
206 msg.len = 14;
207 rc = tuner_transfer(fe, &msg, 1);
208 if (rc < 0)
209 goto err;
210
211 msleep(500);
212 /* correct CP value */
213 buf[0] = 0x30;
214 buf[1] = 0x50 + tda827x_table[i].cp;
215 msg.len = 2;
216
217 rc = tuner_transfer(fe, &msg, 1);
218 if (rc < 0)
219 goto err;
220
221 priv->frequency = params->frequency;
222 priv->bandwidth = (fe->ops.info.type == FE_OFDM) ? params->u.ofdm.bandwidth : 0;
223
224 return 0;
225
226err:
227 printk(KERN_ERR "%s: could not write to tuner at addr: 0x%02x\n",
228 __func__, priv->i2c_addr << 1);
229 return rc;
230}
231
232static int tda827xo_sleep(struct dvb_frontend *fe)
233{
234 struct tda827x_priv *priv = fe->tuner_priv;
235 static u8 buf[] = { 0x30, 0xd0 };
236 struct i2c_msg msg = { .addr = priv->i2c_addr, .flags = 0,
237 .buf = buf, .len = sizeof(buf) };
238
239 dprintk("%s:\n", __func__);
240 tuner_transfer(fe, &msg, 1);
241
242 if (priv->cfg && priv->cfg->sleep)
243 priv->cfg->sleep(fe);
244
245 return 0;
246}
247
248/* ------------------------------------------------------------------ */
249
250static int tda827xo_set_analog_params(struct dvb_frontend *fe,
251 struct analog_parameters *params)
252{
253 unsigned char tuner_reg[8];
254 unsigned char reg2[2];
255 u32 N;
256 int i;
257 struct tda827x_priv *priv = fe->tuner_priv;
258 struct i2c_msg msg = { .addr = priv->i2c_addr, .flags = 0 };
259 unsigned int freq = params->frequency;
260
261 tda827x_set_std(fe, params);
262
263 if (params->mode == V4L2_TUNER_RADIO)
264 freq = freq / 1000;
265
266 N = freq + priv->sgIF;
267
268 i = 0;
269 while (tda827x_table[i].lomax < N * 62500) {
270 if (tda827x_table[i + 1].lomax == 0)
271 break;
272 i++;
273 }
274
275 N = N << tda827x_table[i].spd;
276
277 tuner_reg[0] = 0;
278 tuner_reg[1] = (unsigned char)(N>>8);
279 tuner_reg[2] = (unsigned char) N;
280 tuner_reg[3] = 0x40;
281 tuner_reg[4] = 0x52 + (priv->lpsel << 5);
282 tuner_reg[5] = (tda827x_table[i].spd << 6) +
283 (tda827x_table[i].div1p5 << 5) +
284 (tda827x_table[i].bs << 3) + tda827x_table[i].bp;
285 tuner_reg[6] = 0x8f + (tda827x_table[i].gc3 << 4);
286 tuner_reg[7] = 0x8f;
287
288 msg.buf = tuner_reg;
289 msg.len = 8;
290 tuner_transfer(fe, &msg, 1);
291
292 msg.buf = reg2;
293 msg.len = 2;
294 reg2[0] = 0x80;
295 reg2[1] = 0;
296 tuner_transfer(fe, &msg, 1);
297
298 reg2[0] = 0x60;
299 reg2[1] = 0xbf;
300 tuner_transfer(fe, &msg, 1);
301
302 reg2[0] = 0x30;
303 reg2[1] = tuner_reg[4] + 0x80;
304 tuner_transfer(fe, &msg, 1);
305
306 msleep(1);
307 reg2[0] = 0x30;
308 reg2[1] = tuner_reg[4] + 4;
309 tuner_transfer(fe, &msg, 1);
310
311 msleep(1);
312 reg2[0] = 0x30;
313 reg2[1] = tuner_reg[4];
314 tuner_transfer(fe, &msg, 1);
315
316 msleep(550);
317 reg2[0] = 0x30;
318 reg2[1] = (tuner_reg[4] & 0xfc) + tda827x_table[i].cp;
319 tuner_transfer(fe, &msg, 1);
320
321 reg2[0] = 0x60;
322 reg2[1] = 0x3f;
323 tuner_transfer(fe, &msg, 1);
324
325 reg2[0] = 0x80;
326 reg2[1] = 0x08; /* Vsync en */
327 tuner_transfer(fe, &msg, 1);
328
329 priv->frequency = params->frequency;
330
331 return 0;
332}
333
334static void tda827xo_agcf(struct dvb_frontend *fe)
335{
336 struct tda827x_priv *priv = fe->tuner_priv;
337 unsigned char data[] = { 0x80, 0x0c };
338 struct i2c_msg msg = { .addr = priv->i2c_addr, .flags = 0,
339 .buf = data, .len = 2};
340
341 tuner_transfer(fe, &msg, 1);
342}
343
344/* ------------------------------------------------------------------ */
345
346struct tda827xa_data {
347 u32 lomax;
348 u8 svco;
349 u8 spd;
350 u8 scr;
351 u8 sbs;
352 u8 gc3;
353};
354
355static struct tda827xa_data tda827xa_dvbt[] = {
356 { .lomax = 56875000, .svco = 3, .spd = 4, .scr = 0, .sbs = 0, .gc3 = 1},
357 { .lomax = 67250000, .svco = 0, .spd = 3, .scr = 0, .sbs = 0, .gc3 = 1},
358 { .lomax = 81250000, .svco = 1, .spd = 3, .scr = 0, .sbs = 0, .gc3 = 1},
359 { .lomax = 97500000, .svco = 2, .spd = 3, .scr = 0, .sbs = 0, .gc3 = 1},
360 { .lomax = 113750000, .svco = 3, .spd = 3, .scr = 0, .sbs = 1, .gc3 = 1},
361 { .lomax = 134500000, .svco = 0, .spd = 2, .scr = 0, .sbs = 1, .gc3 = 1},
362 { .lomax = 154000000, .svco = 1, .spd = 2, .scr = 0, .sbs = 1, .gc3 = 1},
363 { .lomax = 162500000, .svco = 1, .spd = 2, .scr = 0, .sbs = 1, .gc3 = 1},
364 { .lomax = 183000000, .svco = 2, .spd = 2, .scr = 0, .sbs = 1, .gc3 = 1},
365 { .lomax = 195000000, .svco = 2, .spd = 2, .scr = 0, .sbs = 2, .gc3 = 1},
366 { .lomax = 227500000, .svco = 3, .spd = 2, .scr = 0, .sbs = 2, .gc3 = 1},
367 { .lomax = 269000000, .svco = 0, .spd = 1, .scr = 0, .sbs = 2, .gc3 = 1},
368 { .lomax = 290000000, .svco = 1, .spd = 1, .scr = 0, .sbs = 2, .gc3 = 1},
369 { .lomax = 325000000, .svco = 1, .spd = 1, .scr = 0, .sbs = 3, .gc3 = 1},
370 { .lomax = 390000000, .svco = 2, .spd = 1, .scr = 0, .sbs = 3, .gc3 = 1},
371 { .lomax = 455000000, .svco = 3, .spd = 1, .scr = 0, .sbs = 3, .gc3 = 1},
372 { .lomax = 520000000, .svco = 0, .spd = 0, .scr = 0, .sbs = 3, .gc3 = 1},
373 { .lomax = 538000000, .svco = 0, .spd = 0, .scr = 1, .sbs = 3, .gc3 = 1},
374 { .lomax = 550000000, .svco = 1, .spd = 0, .scr = 0, .sbs = 3, .gc3 = 1},
375 { .lomax = 620000000, .svco = 1, .spd = 0, .scr = 0, .sbs = 4, .gc3 = 0},
376 { .lomax = 650000000, .svco = 1, .spd = 0, .scr = 1, .sbs = 4, .gc3 = 0},
377 { .lomax = 700000000, .svco = 2, .spd = 0, .scr = 0, .sbs = 4, .gc3 = 0},
378 { .lomax = 780000000, .svco = 2, .spd = 0, .scr = 1, .sbs = 4, .gc3 = 0},
379 { .lomax = 820000000, .svco = 3, .spd = 0, .scr = 0, .sbs = 4, .gc3 = 0},
380 { .lomax = 870000000, .svco = 3, .spd = 0, .scr = 1, .sbs = 4, .gc3 = 0},
381 { .lomax = 911000000, .svco = 3, .spd = 0, .scr = 2, .sbs = 4, .gc3 = 0},
382 { .lomax = 0, .svco = 0, .spd = 0, .scr = 0, .sbs = 0, .gc3 = 0}
383};
384
385static struct tda827xa_data tda827xa_dvbc[] = {
386 { .lomax = 50125000, .svco = 2, .spd = 4, .scr = 2, .sbs = 0, .gc3 = 3},
387 { .lomax = 58500000, .svco = 3, .spd = 4, .scr = 2, .sbs = 0, .gc3 = 3},
388 { .lomax = 69250000, .svco = 0, .spd = 3, .scr = 2, .sbs = 0, .gc3 = 3},
389 { .lomax = 83625000, .svco = 1, .spd = 3, .scr = 2, .sbs = 0, .gc3 = 3},
390 { .lomax = 97500000, .svco = 2, .spd = 3, .scr = 2, .sbs = 0, .gc3 = 3},
391 { .lomax = 100250000, .svco = 2, .spd = 3, .scr = 2, .sbs = 1, .gc3 = 1},
392 { .lomax = 117000000, .svco = 3, .spd = 3, .scr = 2, .sbs = 1, .gc3 = 1},
393 { .lomax = 138500000, .svco = 0, .spd = 2, .scr = 2, .sbs = 1, .gc3 = 1},
394 { .lomax = 167250000, .svco = 1, .spd = 2, .scr = 2, .sbs = 1, .gc3 = 1},
395 { .lomax = 187000000, .svco = 2, .spd = 2, .scr = 2, .sbs = 1, .gc3 = 1},
396 { .lomax = 200500000, .svco = 2, .spd = 2, .scr = 2, .sbs = 2, .gc3 = 1},
397 { .lomax = 234000000, .svco = 3, .spd = 2, .scr = 2, .sbs = 2, .gc3 = 3},
398 { .lomax = 277000000, .svco = 0, .spd = 1, .scr = 2, .sbs = 2, .gc3 = 3},
399 { .lomax = 325000000, .svco = 1, .spd = 1, .scr = 2, .sbs = 2, .gc3 = 1},
400 { .lomax = 334500000, .svco = 1, .spd = 1, .scr = 2, .sbs = 3, .gc3 = 3},
401 { .lomax = 401000000, .svco = 2, .spd = 1, .scr = 2, .sbs = 3, .gc3 = 3},
402 { .lomax = 468000000, .svco = 3, .spd = 1, .scr = 2, .sbs = 3, .gc3 = 1},
403 { .lomax = 535000000, .svco = 0, .spd = 0, .scr = 1, .sbs = 3, .gc3 = 1},
404 { .lomax = 554000000, .svco = 0, .spd = 0, .scr = 2, .sbs = 3, .gc3 = 1},
405 { .lomax = 638000000, .svco = 1, .spd = 0, .scr = 1, .sbs = 4, .gc3 = 1},
406 { .lomax = 669000000, .svco = 1, .spd = 0, .scr = 2, .sbs = 4, .gc3 = 1},
407 { .lomax = 720000000, .svco = 2, .spd = 0, .scr = 1, .sbs = 4, .gc3 = 1},
408 { .lomax = 802000000, .svco = 2, .spd = 0, .scr = 2, .sbs = 4, .gc3 = 1},
409 { .lomax = 835000000, .svco = 3, .spd = 0, .scr = 1, .sbs = 4, .gc3 = 1},
410 { .lomax = 885000000, .svco = 3, .spd = 0, .scr = 1, .sbs = 4, .gc3 = 1},
411 { .lomax = 911000000, .svco = 3, .spd = 0, .scr = 2, .sbs = 4, .gc3 = 1},
412 { .lomax = 0, .svco = 0, .spd = 0, .scr = 0, .sbs = 0, .gc3 = 0}
413};
414
415static struct tda827xa_data tda827xa_analog[] = {
416 { .lomax = 56875000, .svco = 3, .spd = 4, .scr = 0, .sbs = 0, .gc3 = 3},
417 { .lomax = 67250000, .svco = 0, .spd = 3, .scr = 0, .sbs = 0, .gc3 = 3},
418 { .lomax = 81250000, .svco = 1, .spd = 3, .scr = 0, .sbs = 0, .gc3 = 3},
419 { .lomax = 97500000, .svco = 2, .spd = 3, .scr = 0, .sbs = 0, .gc3 = 3},
420 { .lomax = 113750000, .svco = 3, .spd = 3, .scr = 0, .sbs = 1, .gc3 = 1},
421 { .lomax = 134500000, .svco = 0, .spd = 2, .scr = 0, .sbs = 1, .gc3 = 1},
422 { .lomax = 154000000, .svco = 1, .spd = 2, .scr = 0, .sbs = 1, .gc3 = 1},
423 { .lomax = 162500000, .svco = 1, .spd = 2, .scr = 0, .sbs = 1, .gc3 = 1},
424 { .lomax = 183000000, .svco = 2, .spd = 2, .scr = 0, .sbs = 1, .gc3 = 1},
425 { .lomax = 195000000, .svco = 2, .spd = 2, .scr = 0, .sbs = 2, .gc3 = 1},
426 { .lomax = 227500000, .svco = 3, .spd = 2, .scr = 0, .sbs = 2, .gc3 = 3},
427 { .lomax = 269000000, .svco = 0, .spd = 1, .scr = 0, .sbs = 2, .gc3 = 3},
428 { .lomax = 325000000, .svco = 1, .spd = 1, .scr = 0, .sbs = 2, .gc3 = 1},
429 { .lomax = 390000000, .svco = 2, .spd = 1, .scr = 0, .sbs = 3, .gc3 = 3},
430 { .lomax = 455000000, .svco = 3, .spd = 1, .scr = 0, .sbs = 3, .gc3 = 3},
431 { .lomax = 520000000, .svco = 0, .spd = 0, .scr = 0, .sbs = 3, .gc3 = 1},
432 { .lomax = 538000000, .svco = 0, .spd = 0, .scr = 1, .sbs = 3, .gc3 = 1},
433 { .lomax = 554000000, .svco = 1, .spd = 0, .scr = 0, .sbs = 3, .gc3 = 1},
434 { .lomax = 620000000, .svco = 1, .spd = 0, .scr = 0, .sbs = 4, .gc3 = 0},
435 { .lomax = 650000000, .svco = 1, .spd = 0, .scr = 1, .sbs = 4, .gc3 = 0},
436 { .lomax = 700000000, .svco = 2, .spd = 0, .scr = 0, .sbs = 4, .gc3 = 0},
437 { .lomax = 780000000, .svco = 2, .spd = 0, .scr = 1, .sbs = 4, .gc3 = 0},
438 { .lomax = 820000000, .svco = 3, .spd = 0, .scr = 0, .sbs = 4, .gc3 = 0},
439 { .lomax = 870000000, .svco = 3, .spd = 0, .scr = 1, .sbs = 4, .gc3 = 0},
440 { .lomax = 911000000, .svco = 3, .spd = 0, .scr = 2, .sbs = 4, .gc3 = 0},
441 { .lomax = 0, .svco = 0, .spd = 0, .scr = 0, .sbs = 0, .gc3 = 0}
442};
443
444static int tda827xa_sleep(struct dvb_frontend *fe)
445{
446 struct tda827x_priv *priv = fe->tuner_priv;
447 static u8 buf[] = { 0x30, 0x90 };
448 struct i2c_msg msg = { .addr = priv->i2c_addr, .flags = 0,
449 .buf = buf, .len = sizeof(buf) };
450
451 dprintk("%s:\n", __func__);
452
453 tuner_transfer(fe, &msg, 1);
454
455 if (priv->cfg && priv->cfg->sleep)
456 priv->cfg->sleep(fe);
457
458 return 0;
459}
460
461static void tda827xa_lna_gain(struct dvb_frontend *fe, int high,
462 struct analog_parameters *params)
463{
464 struct tda827x_priv *priv = fe->tuner_priv;
465 unsigned char buf[] = {0x22, 0x01};
466 int arg;
467 int gp_func;
468 struct i2c_msg msg = { .flags = 0, .buf = buf, .len = sizeof(buf) };
469
470 if (NULL == priv->cfg) {
471 dprintk("tda827x_config not defined, cannot set LNA gain!\n");
472 return;
473 }
474 msg.addr = priv->cfg->switch_addr;
475 if (priv->cfg->config) {
476 if (high)
477 dprintk("setting LNA to high gain\n");
478 else
479 dprintk("setting LNA to low gain\n");
480 }
481 switch (priv->cfg->config) {
482 case 0: /* no LNA */
483 break;
484 case 1: /* switch is GPIO 0 of tda8290 */
485 case 2:
486 if (params == NULL) {
487 gp_func = 0;
488 arg = 0;
489 } else {
490 /* turn Vsync on */
491 gp_func = 1;
492 if (params->std & V4L2_STD_MN)
493 arg = 1;
494 else
495 arg = 0;
496 }
497 if (fe->callback)
498 fe->callback(priv->i2c_adap->algo_data,
499 DVB_FRONTEND_COMPONENT_TUNER,
500 gp_func, arg);
501 buf[1] = high ? 0 : 1;
502 if (priv->cfg->config == 2)
503 buf[1] = high ? 1 : 0;
504 tuner_transfer(fe, &msg, 1);
505 break;
506 case 3: /* switch with GPIO of saa713x */
507 if (fe->callback)
508 fe->callback(priv->i2c_adap->algo_data,
509 DVB_FRONTEND_COMPONENT_TUNER, 0, high);
510 break;
511 }
512}
513
514static int tda827xa_set_params(struct dvb_frontend *fe,
515 struct dvb_frontend_parameters *params)
516{
517 struct tda827x_priv *priv = fe->tuner_priv;
518 struct tda827xa_data *frequency_map = tda827xa_dvbt;
519 u8 buf[11];
520
521 struct i2c_msg msg = { .addr = priv->i2c_addr, .flags = 0,
522 .buf = buf, .len = sizeof(buf) };
523
524 int i, tuner_freq, if_freq, rc;
525 u32 N;
526
527 dprintk("%s:\n", __func__);
528
529 tda827xa_lna_gain(fe, 1, NULL);
530 msleep(20);
531
532 switch (params->u.ofdm.bandwidth) {
533 case BANDWIDTH_6_MHZ:
534 if_freq = 4000000;
535 break;
536 case BANDWIDTH_7_MHZ:
537 if_freq = 4500000;
538 break;
539 default: /* 8 MHz or Auto */
540 if_freq = 5000000;
541 break;
542 }
543 tuner_freq = params->frequency + if_freq;
544
545 if (fe->ops.info.type == FE_QAM) {
546 dprintk("%s select tda827xa_dvbc\n", __func__);
547 frequency_map = tda827xa_dvbc;
548 }
549
550 i = 0;
551 while (frequency_map[i].lomax < tuner_freq) {
552 if (frequency_map[i + 1].lomax == 0)
553 break;
554 i++;
555 }
556
557 N = ((tuner_freq + 31250) / 62500) << frequency_map[i].spd;
558 buf[0] = 0; // subaddress
559 buf[1] = N >> 8;
560 buf[2] = N & 0xff;
561 buf[3] = 0;
562 buf[4] = 0x16;
563 buf[5] = (frequency_map[i].spd << 5) + (frequency_map[i].svco << 3) +
564 frequency_map[i].sbs;
565 buf[6] = 0x4b + (frequency_map[i].gc3 << 4);
566 buf[7] = 0x1c;
567 buf[8] = 0x06;
568 buf[9] = 0x24;
569 buf[10] = 0x00;
570 msg.len = 11;
571 rc = tuner_transfer(fe, &msg, 1);
572 if (rc < 0)
573 goto err;
574
575 buf[0] = 0x90;
576 buf[1] = 0xff;
577 buf[2] = 0x60;
578 buf[3] = 0x00;
579 buf[4] = 0x59; // lpsel, for 6MHz + 2
580 msg.len = 5;
581 rc = tuner_transfer(fe, &msg, 1);
582 if (rc < 0)
583 goto err;
584
585 buf[0] = 0xa0;
586 buf[1] = 0x40;
587 msg.len = 2;
588 rc = tuner_transfer(fe, &msg, 1);
589 if (rc < 0)
590 goto err;
591
592 msleep(11);
593 msg.flags = I2C_M_RD;
594 rc = tuner_transfer(fe, &msg, 1);
595 if (rc < 0)
596 goto err;
597 msg.flags = 0;
598
599 buf[1] >>= 4;
600 dprintk("tda8275a AGC2 gain is: %d\n", buf[1]);
601 if ((buf[1]) < 2) {
602 tda827xa_lna_gain(fe, 0, NULL);
603 buf[0] = 0x60;
604 buf[1] = 0x0c;
605 rc = tuner_transfer(fe, &msg, 1);
606 if (rc < 0)
607 goto err;
608 }
609
610 buf[0] = 0xc0;
611 buf[1] = 0x99; // lpsel, for 6MHz + 2
612 rc = tuner_transfer(fe, &msg, 1);
613 if (rc < 0)
614 goto err;
615
616 buf[0] = 0x60;
617 buf[1] = 0x3c;
618 rc = tuner_transfer(fe, &msg, 1);
619 if (rc < 0)
620 goto err;
621
622 /* correct CP value */
623 buf[0] = 0x30;
624 buf[1] = 0x10 + frequency_map[i].scr;
625 rc = tuner_transfer(fe, &msg, 1);
626 if (rc < 0)
627 goto err;
628
629 msleep(163);
630 buf[0] = 0xc0;
631 buf[1] = 0x39; // lpsel, for 6MHz + 2
632 rc = tuner_transfer(fe, &msg, 1);
633 if (rc < 0)
634 goto err;
635
636 msleep(3);
637 /* freeze AGC1 */
638 buf[0] = 0x50;
639 buf[1] = 0x4f + (frequency_map[i].gc3 << 4);
640 rc = tuner_transfer(fe, &msg, 1);
641 if (rc < 0)
642 goto err;
643
644 priv->frequency = params->frequency;
645 priv->bandwidth = (fe->ops.info.type == FE_OFDM) ? params->u.ofdm.bandwidth : 0;
646
647
648 return 0;
649
650err:
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
657static 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
755static 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
766static int tda827x_release(struct dvb_frontend *fe)
767{
768 kfree(fe->tuner_priv);
769 fe->tuner_priv = NULL;
770 return 0;
771}
772
773static int tda827x_get_frequency(struct dvb_frontend *fe, u32 *frequency)
774{
775 struct tda827x_priv *priv = fe->tuner_priv;
776 *frequency = priv->frequency;
777 return 0;
778}
779
780static int tda827x_get_bandwidth(struct dvb_frontend *fe, u32 *bandwidth)
781{
782 struct tda827x_priv *priv = fe->tuner_priv;
783 *bandwidth = priv->bandwidth;
784 return 0;
785}
786
787static int tda827x_init(struct dvb_frontend *fe)
788{
789 struct tda827x_priv *priv = fe->tuner_priv;
790 dprintk("%s:\n", __func__);
791 if (priv->cfg && priv->cfg->init)
792 priv->cfg->init(fe);
793
794 return 0;
795}
796
797static int tda827x_probe_version(struct dvb_frontend *fe);
798
799static int tda827x_initial_init(struct dvb_frontend *fe)
800{
801 int ret;
802 ret = tda827x_probe_version(fe);
803 if (ret)
804 return ret;
805 return fe->ops.tuner_ops.init(fe);
806}
807
808static int tda827x_initial_sleep(struct dvb_frontend *fe)
809{
810 int ret;
811 ret = tda827x_probe_version(fe);
812 if (ret)
813 return ret;
814 return fe->ops.tuner_ops.sleep(fe);
815}
816
817static struct dvb_tuner_ops tda827xo_tuner_ops = {
818 .info = {
819 .name = "Philips TDA827X",
820 .frequency_min = 55000000,
821 .frequency_max = 860000000,
822 .frequency_step = 250000
823 },
824 .release = tda827x_release,
825 .init = tda827x_initial_init,
826 .sleep = tda827x_initial_sleep,
827 .set_params = tda827xo_set_params,
828 .set_analog_params = tda827xo_set_analog_params,
829 .get_frequency = tda827x_get_frequency,
830 .get_bandwidth = tda827x_get_bandwidth,
831};
832
833static struct dvb_tuner_ops tda827xa_tuner_ops = {
834 .info = {
835 .name = "Philips TDA827XA",
836 .frequency_min = 44000000,
837 .frequency_max = 906000000,
838 .frequency_step = 62500
839 },
840 .release = tda827x_release,
841 .init = tda827x_init,
842 .sleep = tda827xa_sleep,
843 .set_params = tda827xa_set_params,
844 .set_analog_params = tda827xa_set_analog_params,
845 .get_frequency = tda827x_get_frequency,
846 .get_bandwidth = tda827x_get_bandwidth,
847};
848
849static int tda827x_probe_version(struct dvb_frontend *fe)
850{
851 u8 data;
852 int rc;
853 struct tda827x_priv *priv = fe->tuner_priv;
854 struct i2c_msg msg = { .addr = priv->i2c_addr, .flags = I2C_M_RD,
855 .buf = &data, .len = 1 };
856
857 rc = tuner_transfer(fe, &msg, 1);
858
859 if (rc < 0) {
860 printk("%s: could not read from tuner at addr: 0x%02x\n",
861 __func__, msg.addr << 1);
862 return rc;
863 }
864 if ((data & 0x3c) == 0) {
865 dprintk("tda827x tuner found\n");
866 fe->ops.tuner_ops.init = tda827x_init;
867 fe->ops.tuner_ops.sleep = tda827xo_sleep;
868 if (priv->cfg)
869 priv->cfg->agcf = tda827xo_agcf;
870 } else {
871 dprintk("tda827xa tuner found\n");
872 memcpy(&fe->ops.tuner_ops, &tda827xa_tuner_ops, sizeof(struct dvb_tuner_ops));
873 if (priv->cfg)
874 priv->cfg->agcf = tda827xa_agcf;
875 }
876 return 0;
877}
878
879struct dvb_frontend *tda827x_attach(struct dvb_frontend *fe, int addr,
880 struct i2c_adapter *i2c,
881 struct tda827x_config *cfg)
882{
883 struct tda827x_priv *priv = NULL;
884
885 dprintk("%s:\n", __func__);
886 priv = kzalloc(sizeof(struct tda827x_priv), GFP_KERNEL);
887 if (priv == NULL)
888 return NULL;
889
890 priv->i2c_addr = addr;
891 priv->i2c_adap = i2c;
892 priv->cfg = cfg;
893 memcpy(&fe->ops.tuner_ops, &tda827xo_tuner_ops, sizeof(struct dvb_tuner_ops));
894 fe->tuner_priv = priv;
895
896 dprintk("type set to %s\n", fe->ops.tuner_ops.info.name);
897
898 return fe;
899}
900EXPORT_SYMBOL_GPL(tda827x_attach);
901
902MODULE_DESCRIPTION("DVB TDA827x driver");
903MODULE_AUTHOR("Hartmut Hackmann <hartmut.hackmann@t-online.de>");
904MODULE_AUTHOR("Michael Krufky <mkrufky@linuxtv.org>");
905MODULE_LICENSE("GPL");
906
907/*
908 * Overrides for Emacs so that we follow Linus's tabbing style.
909 * ---------------------------------------------------------------------------
910 * Local variables:
911 * c-basic-offset: 8
912 * End:
913 */
generated by cgit v1.2.2 (git 2.25.0) at 2025-07-22 13:15:05 -0400