?  search:
summary | log | graphiclog1 | graphiclog2 | commit | commitdiff | tree | refs | edit | fork
blame | history | raw | HEAD
treewide: remove redundant IS_ERR() before error code check
[linux/fpc-iii.git] / drivers / media / tuners / tda827x.c
blobad68ee6c5ed4530014c0c5085eb378a48fd28843
1 // SPDX-License-Identifier: GPL-2.0-or-later
2 /*
3 *
4 * (c) 2005 Hartmut Hackmann
5 * (c) 2007 Michael Krufky
6 */
7
8 #include <linux/module.h>
9 #include <linux/slab.h>
10 #include <asm/types.h>
11 #include <linux/dvb/frontend.h>
12 #include <linux/videodev2.h>
13
14 #include "tda827x.h"
15
16 static int debug;
17 module_param(debug, int, 0644);
18 MODULE_PARM_DESC(debug, "Turn on/off frontend debugging (default:off).");
19
20 #define dprintk(args...) \
21 do { \
22 if (debug) printk(KERN_DEBUG "tda827x: " args); \
23 } while (0)
24
25 struct tda827x_priv {
26 int i2c_addr;
27 struct i2c_adapter *i2c_adap;
28 struct tda827x_config *cfg;
29
30 unsigned int sgIF;
31 unsigned char lpsel;
32
33 u32 frequency;
34 u32 bandwidth;
35 };
36
37 static void tda827x_set_std(struct dvb_frontend *fe,
38 struct analog_parameters *params)
39 {
40 struct tda827x_priv *priv = fe->tuner_priv;
41 char *mode;
42
43 priv->lpsel = 0;
44 if (params->std & V4L2_STD_MN) {
45 priv->sgIF = 92;
46 priv->lpsel = 1;
47 mode = "MN";
48 } else if (params->std & V4L2_STD_B) {
49 priv->sgIF = 108;
50 mode = "B";
51 } else if (params->std & V4L2_STD_GH) {
52 priv->sgIF = 124;
53 mode = "GH";
54 } else if (params->std & V4L2_STD_PAL_I) {
55 priv->sgIF = 124;
56 mode = "I";
57 } else if (params->std & V4L2_STD_DK) {
58 priv->sgIF = 124;
59 mode = "DK";
60 } else if (params->std & V4L2_STD_SECAM_L) {
61 priv->sgIF = 124;
62 mode = "L";
63 } else if (params->std & V4L2_STD_SECAM_LC) {
64 priv->sgIF = 20;
65 mode = "LC";
66 } else {
67 priv->sgIF = 124;
68 mode = "xx";
69 }
70
71 if (params->mode == V4L2_TUNER_RADIO) {
72 priv->sgIF = 88; /* if frequency is 5.5 MHz */
73 dprintk("setting tda827x to radio FM\n");
74 } else
75 dprintk("setting tda827x to system %s\n", mode);
76 }
77
78
79 /* ------------------------------------------------------------------ */
80
81 struct tda827x_data {
82 u32 lomax;
83 u8 spd;
84 u8 bs;
85 u8 bp;
86 u8 cp;
87 u8 gc3;
88 u8 div1p5;
89 };
90
91 static const struct tda827x_data tda827x_table[] = {
92 { .lomax = 62000000, .spd = 3, .bs = 2, .bp = 0, .cp = 0, .gc3 = 3, .div1p5 = 1},
93 { .lomax = 66000000, .spd = 3, .bs = 3, .bp = 0, .cp = 0, .gc3 = 3, .div1p5 = 1},
94 { .lomax = 76000000, .spd = 3, .bs = 1, .bp = 0, .cp = 0, .gc3 = 3, .div1p5 = 0},
95 { .lomax = 84000000, .spd = 3, .bs = 2, .bp = 0, .cp = 0, .gc3 = 3, .div1p5 = 0},
96 { .lomax = 93000000, .spd = 3, .bs = 2, .bp = 0, .cp = 0, .gc3 = 1, .div1p5 = 0},
97 { .lomax = 98000000, .spd = 3, .bs = 3, .bp = 0, .cp = 0, .gc3 = 1, .div1p5 = 0},
98 { .lomax = 109000000, .spd = 3, .bs = 3, .bp = 1, .cp = 0, .gc3 = 1, .div1p5 = 0},
99 { .lomax = 123000000, .spd = 2, .bs = 2, .bp = 1, .cp = 0, .gc3 = 1, .div1p5 = 1},
100 { .lomax = 133000000, .spd = 2, .bs = 3, .bp = 1, .cp = 0, .gc3 = 1, .div1p5 = 1},
101 { .lomax = 151000000, .spd = 2, .bs = 1, .bp = 1, .cp = 0, .gc3 = 1, .div1p5 = 0},
102 { .lomax = 154000000, .spd = 2, .bs = 2, .bp = 1, .cp = 0, .gc3 = 1, .div1p5 = 0},
103 { .lomax = 181000000, .spd = 2, .bs = 2, .bp = 1, .cp = 0, .gc3 = 0, .div1p5 = 0},
104 { .lomax = 185000000, .spd = 2, .bs = 2, .bp = 2, .cp = 0, .gc3 = 1, .div1p5 = 0},
105 { .lomax = 217000000, .spd = 2, .bs = 3, .bp = 2, .cp = 0, .gc3 = 1, .div1p5 = 0},
106 { .lomax = 244000000, .spd = 1, .bs = 2, .bp = 2, .cp = 0, .gc3 = 1, .div1p5 = 1},
107 { .lomax = 265000000, .spd = 1, .bs = 3, .bp = 2, .cp = 0, .gc3 = 1, .div1p5 = 1},
108 { .lomax = 302000000, .spd = 1, .bs = 1, .bp = 2, .cp = 0, .gc3 = 1, .div1p5 = 0},
109 { .lomax = 324000000, .spd = 1, .bs = 2, .bp = 2, .cp = 0, .gc3 = 1, .div1p5 = 0},
110 { .lomax = 370000000, .spd = 1, .bs = 2, .bp = 3, .cp = 0, .gc3 = 1, .div1p5 = 0},
111 { .lomax = 454000000, .spd = 1, .bs = 3, .bp = 3, .cp = 0, .gc3 = 1, .div1p5 = 0},
112 { .lomax = 493000000, .spd = 0, .bs = 2, .bp = 3, .cp = 0, .gc3 = 1, .div1p5 = 1},
113 { .lomax = 530000000, .spd = 0, .bs = 3, .bp = 3, .cp = 0, .gc3 = 1, .div1p5 = 1},
114 { .lomax = 554000000, .spd = 0, .bs = 1, .bp = 3, .cp = 0, .gc3 = 1, .div1p5 = 0},
115 { .lomax = 604000000, .spd = 0, .bs = 1, .bp = 4, .cp = 0, .gc3 = 0, .div1p5 = 0},
116 { .lomax = 696000000, .spd = 0, .bs = 2, .bp = 4, .cp = 0, .gc3 = 0, .div1p5 = 0},
117 { .lomax = 740000000, .spd = 0, .bs = 2, .bp = 4, .cp = 1, .gc3 = 0, .div1p5 = 0},
118 { .lomax = 820000000, .spd = 0, .bs = 3, .bp = 4, .cp = 0, .gc3 = 0, .div1p5 = 0},
119 { .lomax = 865000000, .spd = 0, .bs = 3, .bp = 4, .cp = 1, .gc3 = 0, .div1p5 = 0},
120 { .lomax = 0, .spd = 0, .bs = 0, .bp = 0, .cp = 0, .gc3 = 0, .div1p5 = 0}
121 };
122
123 static int tuner_transfer(struct dvb_frontend *fe,
124 struct i2c_msg *msg,
125 const int size)
126 {
127 int rc;
128 struct tda827x_priv *priv = fe->tuner_priv;
129
130 if (fe->ops.i2c_gate_ctrl)
131 fe->ops.i2c_gate_ctrl(fe, 1);
132 rc = i2c_transfer(priv->i2c_adap, msg, size);
133 if (fe->ops.i2c_gate_ctrl)
134 fe->ops.i2c_gate_ctrl(fe, 0);
135
136 if (rc >= 0 && rc != size)
137 return -EIO;
138
139 return rc;
140 }
141
142 static int tda827xo_set_params(struct dvb_frontend *fe)
143 {
144 struct dtv_frontend_properties *c = &fe->dtv_property_cache;
145 struct tda827x_priv *priv = fe->tuner_priv;
146 u8 buf[14];
147 int rc;
148
149 struct i2c_msg msg = { .addr = priv->i2c_addr, .flags = 0,
150 .buf = buf, .len = sizeof(buf) };
151 int i, tuner_freq, if_freq;
152 u32 N;
153
154 dprintk("%s:\n", __func__);
155 if (c->bandwidth_hz == 0) {
156 if_freq = 5000000;
157 } else if (c->bandwidth_hz <= 6000000) {
158 if_freq = 4000000;
159 } else if (c->bandwidth_hz <= 7000000) {
160 if_freq = 4500000;
161 } else { /* 8 MHz */
162 if_freq = 5000000;
163 }
164 tuner_freq = c->frequency;
165
166 i = 0;
167 while (tda827x_table[i].lomax < tuner_freq) {
168 if (tda827x_table[i + 1].lomax == 0)
169 break;
170 i++;
171 }
172
173 tuner_freq += if_freq;
174
175 N = ((tuner_freq + 125000) / 250000) << (tda827x_table[i].spd + 2);
176 buf[0] = 0;
177 buf[1] = (N>>8) | 0x40;
178 buf[2] = N & 0xff;
179 buf[3] = 0;
180 buf[4] = 0x52;
181 buf[5] = (tda827x_table[i].spd << 6) + (tda827x_table[i].div1p5 << 5) +
182 (tda827x_table[i].bs << 3) +
183 tda827x_table[i].bp;
184 buf[6] = (tda827x_table[i].gc3 << 4) + 0x8f;
185 buf[7] = 0xbf;
186 buf[8] = 0x2a;
187 buf[9] = 0x05;
188 buf[10] = 0xff;
189 buf[11] = 0x00;
190 buf[12] = 0x00;
191 buf[13] = 0x40;
192
193 msg.len = 14;
194 rc = tuner_transfer(fe, &msg, 1);
195 if (rc < 0)
196 goto err;
197
198 msleep(500);
199 /* correct CP value */
200 buf[0] = 0x30;
201 buf[1] = 0x50 + tda827x_table[i].cp;
202 msg.len = 2;
203
204 rc = tuner_transfer(fe, &msg, 1);
205 if (rc < 0)
206 goto err;
207
208 priv->frequency = c->frequency;
209 priv->bandwidth = c->bandwidth_hz;
210
211 return 0;
212
213 err:
214 printk(KERN_ERR "%s: could not write to tuner at addr: 0x%02x\n",
215 __func__, priv->i2c_addr << 1);
216 return rc;
217 }
218
219 static int tda827xo_sleep(struct dvb_frontend *fe)
220 {
221 struct tda827x_priv *priv = fe->tuner_priv;
222 static u8 buf[] = { 0x30, 0xd0 };
223 struct i2c_msg msg = { .addr = priv->i2c_addr, .flags = 0,
224 .buf = buf, .len = sizeof(buf) };
225
226 dprintk("%s:\n", __func__);
227 tuner_transfer(fe, &msg, 1);
228
229 if (priv->cfg && priv->cfg->sleep)
230 priv->cfg->sleep(fe);
231
232 return 0;
233 }
234
235 /* ------------------------------------------------------------------ */
236
237 static int tda827xo_set_analog_params(struct dvb_frontend *fe,
238 struct analog_parameters *params)
239 {
240 unsigned char tuner_reg[8];
241 unsigned char reg2[2];
242 u32 N;
243 int i;
244 struct tda827x_priv *priv = fe->tuner_priv;
245 struct i2c_msg msg = { .addr = priv->i2c_addr, .flags = 0 };
246 unsigned int freq = params->frequency;
247
248 tda827x_set_std(fe, params);
249
250 if (params->mode == V4L2_TUNER_RADIO)
251 freq = freq / 1000;
252
253 N = freq + priv->sgIF;
254
255 i = 0;
256 while (tda827x_table[i].lomax < N * 62500) {
257 if (tda827x_table[i + 1].lomax == 0)
258 break;
259 i++;
260 }
261
262 N = N << tda827x_table[i].spd;
263
264 tuner_reg[0] = 0;
265 tuner_reg[1] = (unsigned char)(N>>8);
266 tuner_reg[2] = (unsigned char) N;
267 tuner_reg[3] = 0x40;
268 tuner_reg[4] = 0x52 + (priv->lpsel << 5);
269 tuner_reg[5] = (tda827x_table[i].spd << 6) +
270 (tda827x_table[i].div1p5 << 5) +
271 (tda827x_table[i].bs << 3) + tda827x_table[i].bp;
272 tuner_reg[6] = 0x8f + (tda827x_table[i].gc3 << 4);
273 tuner_reg[7] = 0x8f;
274
275 msg.buf = tuner_reg;
276 msg.len = 8;
277 tuner_transfer(fe, &msg, 1);
278
279 msg.buf = reg2;
280 msg.len = 2;
281 reg2[0] = 0x80;
282 reg2[1] = 0;
283 tuner_transfer(fe, &msg, 1);
284
285 reg2[0] = 0x60;
286 reg2[1] = 0xbf;
287 tuner_transfer(fe, &msg, 1);
288
289 reg2[0] = 0x30;
290 reg2[1] = tuner_reg[4] + 0x80;
291 tuner_transfer(fe, &msg, 1);
292
293 msleep(1);
294 reg2[0] = 0x30;
295 reg2[1] = tuner_reg[4] + 4;
296 tuner_transfer(fe, &msg, 1);
297
298 msleep(1);
299 reg2[0] = 0x30;
300 reg2[1] = tuner_reg[4];
301 tuner_transfer(fe, &msg, 1);
302
303 msleep(550);
304 reg2[0] = 0x30;
305 reg2[1] = (tuner_reg[4] & 0xfc) + tda827x_table[i].cp;
306 tuner_transfer(fe, &msg, 1);
307
308 reg2[0] = 0x60;
309 reg2[1] = 0x3f;
310 tuner_transfer(fe, &msg, 1);
311
312 reg2[0] = 0x80;
313 reg2[1] = 0x08; /* Vsync en */
314 tuner_transfer(fe, &msg, 1);
315
316 priv->frequency = params->frequency;
317
318 return 0;
319 }
320
321 static void tda827xo_agcf(struct dvb_frontend *fe)
322 {
323 struct tda827x_priv *priv = fe->tuner_priv;
324 unsigned char data[] = { 0x80, 0x0c };
325 struct i2c_msg msg = { .addr = priv->i2c_addr, .flags = 0,
326 .buf = data, .len = 2};
327
328 tuner_transfer(fe, &msg, 1);
329 }
330
331 /* ------------------------------------------------------------------ */
332
333 struct tda827xa_data {
334 u32 lomax;
335 u8 svco;
336 u8 spd;
337 u8 scr;
338 u8 sbs;
339 u8 gc3;
340 };
341
342 static struct tda827xa_data tda827xa_dvbt[] = {
343 { .lomax = 56875000, .svco = 3, .spd = 4, .scr = 0, .sbs = 0, .gc3 = 1},
344 { .lomax = 67250000, .svco = 0, .spd = 3, .scr = 0, .sbs = 0, .gc3 = 1},
345 { .lomax = 81250000, .svco = 1, .spd = 3, .scr = 0, .sbs = 0, .gc3 = 1},
346 { .lomax = 97500000, .svco = 2, .spd = 3, .scr = 0, .sbs = 0, .gc3 = 1},
347 { .lomax = 113750000, .svco = 3, .spd = 3, .scr = 0, .sbs = 1, .gc3 = 1},
348 { .lomax = 134500000, .svco = 0, .spd = 2, .scr = 0, .sbs = 1, .gc3 = 1},
349 { .lomax = 154000000, .svco = 1, .spd = 2, .scr = 0, .sbs = 1, .gc3 = 1},
350 { .lomax = 162500000, .svco = 1, .spd = 2, .scr = 0, .sbs = 1, .gc3 = 1},
351 { .lomax = 183000000, .svco = 2, .spd = 2, .scr = 0, .sbs = 1, .gc3 = 1},
352 { .lomax = 195000000, .svco = 2, .spd = 2, .scr = 0, .sbs = 2, .gc3 = 1},
353 { .lomax = 227500000, .svco = 3, .spd = 2, .scr = 0, .sbs = 2, .gc3 = 1},
354 { .lomax = 269000000, .svco = 0, .spd = 1, .scr = 0, .sbs = 2, .gc3 = 1},
355 { .lomax = 290000000, .svco = 1, .spd = 1, .scr = 0, .sbs = 2, .gc3 = 1},
356 { .lomax = 325000000, .svco = 1, .spd = 1, .scr = 0, .sbs = 3, .gc3 = 1},
357 { .lomax = 390000000, .svco = 2, .spd = 1, .scr = 0, .sbs = 3, .gc3 = 1},
358 { .lomax = 455000000, .svco = 3, .spd = 1, .scr = 0, .sbs = 3, .gc3 = 1},
359 { .lomax = 520000000, .svco = 0, .spd = 0, .scr = 0, .sbs = 3, .gc3 = 1},
360 { .lomax = 538000000, .svco = 0, .spd = 0, .scr = 1, .sbs = 3, .gc3 = 1},
361 { .lomax = 550000000, .svco = 1, .spd = 0, .scr = 0, .sbs = 3, .gc3 = 1},
362 { .lomax = 620000000, .svco = 1, .spd = 0, .scr = 0, .sbs = 4, .gc3 = 0},
363 { .lomax = 650000000, .svco = 1, .spd = 0, .scr = 1, .sbs = 4, .gc3 = 0},
364 { .lomax = 700000000, .svco = 2, .spd = 0, .scr = 0, .sbs = 4, .gc3 = 0},
365 { .lomax = 780000000, .svco = 2, .spd = 0, .scr = 1, .sbs = 4, .gc3 = 0},
366 { .lomax = 820000000, .svco = 3, .spd = 0, .scr = 0, .sbs = 4, .gc3 = 0},
367 { .lomax = 870000000, .svco = 3, .spd = 0, .scr = 1, .sbs = 4, .gc3 = 0},
368 { .lomax = 911000000, .svco = 3, .spd = 0, .scr = 2, .sbs = 4, .gc3 = 0},
369 { .lomax = 0, .svco = 0, .spd = 0, .scr = 0, .sbs = 0, .gc3 = 0}
370 };
371
372 static struct tda827xa_data tda827xa_dvbc[] = {
373 { .lomax = 50125000, .svco = 2, .spd = 4, .scr = 2, .sbs = 0, .gc3 = 3},
374 { .lomax = 58500000, .svco = 3, .spd = 4, .scr = 2, .sbs = 0, .gc3 = 3},
375 { .lomax = 69250000, .svco = 0, .spd = 3, .scr = 2, .sbs = 0, .gc3 = 3},
376 { .lomax = 83625000, .svco = 1, .spd = 3, .scr = 2, .sbs = 0, .gc3 = 3},
377 { .lomax = 97500000, .svco = 2, .spd = 3, .scr = 2, .sbs = 0, .gc3 = 3},
378 { .lomax = 100250000, .svco = 2, .spd = 3, .scr = 2, .sbs = 1, .gc3 = 1},
379 { .lomax = 117000000, .svco = 3, .spd = 3, .scr = 2, .sbs = 1, .gc3 = 1},
380 { .lomax = 138500000, .svco = 0, .spd = 2, .scr = 2, .sbs = 1, .gc3 = 1},
381 { .lomax = 167250000, .svco = 1, .spd = 2, .scr = 2, .sbs = 1, .gc3 = 1},
382 { .lomax = 187000000, .svco = 2, .spd = 2, .scr = 2, .sbs = 1, .gc3 = 1},
383 { .lomax = 200500000, .svco = 2, .spd = 2, .scr = 2, .sbs = 2, .gc3 = 1},
384 { .lomax = 234000000, .svco = 3, .spd = 2, .scr = 2, .sbs = 2, .gc3 = 3},
385 { .lomax = 277000000, .svco = 0, .spd = 1, .scr = 2, .sbs = 2, .gc3 = 3},
386 { .lomax = 325000000, .svco = 1, .spd = 1, .scr = 2, .sbs = 2, .gc3 = 1},
387 { .lomax = 334500000, .svco = 1, .spd = 1, .scr = 2, .sbs = 3, .gc3 = 3},
388 { .lomax = 401000000, .svco = 2, .spd = 1, .scr = 2, .sbs = 3, .gc3 = 3},
389 { .lomax = 468000000, .svco = 3, .spd = 1, .scr = 2, .sbs = 3, .gc3 = 1},
390 { .lomax = 535000000, .svco = 0, .spd = 0, .scr = 1, .sbs = 3, .gc3 = 1},
391 { .lomax = 554000000, .svco = 0, .spd = 0, .scr = 2, .sbs = 3, .gc3 = 1},
392 { .lomax = 638000000, .svco = 1, .spd = 0, .scr = 1, .sbs = 4, .gc3 = 1},
393 { .lomax = 669000000, .svco = 1, .spd = 0, .scr = 2, .sbs = 4, .gc3 = 1},
394 { .lomax = 720000000, .svco = 2, .spd = 0, .scr = 1, .sbs = 4, .gc3 = 1},
395 { .lomax = 802000000, .svco = 2, .spd = 0, .scr = 2, .sbs = 4, .gc3 = 1},
396 { .lomax = 835000000, .svco = 3, .spd = 0, .scr = 1, .sbs = 4, .gc3 = 1},
397 { .lomax = 885000000, .svco = 3, .spd = 0, .scr = 1, .sbs = 4, .gc3 = 1},
398 { .lomax = 911000000, .svco = 3, .spd = 0, .scr = 2, .sbs = 4, .gc3 = 1},
399 { .lomax = 0, .svco = 0, .spd = 0, .scr = 0, .sbs = 0, .gc3 = 0}
400 };
401
402 static struct tda827xa_data tda827xa_analog[] = {
403 { .lomax = 56875000, .svco = 3, .spd = 4, .scr = 0, .sbs = 0, .gc3 = 3},
404 { .lomax = 67250000, .svco = 0, .spd = 3, .scr = 0, .sbs = 0, .gc3 = 3},
405 { .lomax = 81250000, .svco = 1, .spd = 3, .scr = 0, .sbs = 0, .gc3 = 3},
406 { .lomax = 97500000, .svco = 2, .spd = 3, .scr = 0, .sbs = 0, .gc3 = 3},
407 { .lomax = 113750000, .svco = 3, .spd = 3, .scr = 0, .sbs = 1, .gc3 = 1},
408 { .lomax = 134500000, .svco = 0, .spd = 2, .scr = 0, .sbs = 1, .gc3 = 1},
409 { .lomax = 154000000, .svco = 1, .spd = 2, .scr = 0, .sbs = 1, .gc3 = 1},
410 { .lomax = 162500000, .svco = 1, .spd = 2, .scr = 0, .sbs = 1, .gc3 = 1},
411 { .lomax = 183000000, .svco = 2, .spd = 2, .scr = 0, .sbs = 1, .gc3 = 1},
412 { .lomax = 195000000, .svco = 2, .spd = 2, .scr = 0, .sbs = 2, .gc3 = 1},
413 { .lomax = 227500000, .svco = 3, .spd = 2, .scr = 0, .sbs = 2, .gc3 = 3},
414 { .lomax = 269000000, .svco = 0, .spd = 1, .scr = 0, .sbs = 2, .gc3 = 3},
415 { .lomax = 325000000, .svco = 1, .spd = 1, .scr = 0, .sbs = 2, .gc3 = 1},
416 { .lomax = 390000000, .svco = 2, .spd = 1, .scr = 0, .sbs = 3, .gc3 = 3},
417 { .lomax = 455000000, .svco = 3, .spd = 1, .scr = 0, .sbs = 3, .gc3 = 3},
418 { .lomax = 520000000, .svco = 0, .spd = 0, .scr = 0, .sbs = 3, .gc3 = 1},
419 { .lomax = 538000000, .svco = 0, .spd = 0, .scr = 1, .sbs = 3, .gc3 = 1},
420 { .lomax = 554000000, .svco = 1, .spd = 0, .scr = 0, .sbs = 3, .gc3 = 1},
421 { .lomax = 620000000, .svco = 1, .spd = 0, .scr = 0, .sbs = 4, .gc3 = 0},
422 { .lomax = 650000000, .svco = 1, .spd = 0, .scr = 1, .sbs = 4, .gc3 = 0},
423 { .lomax = 700000000, .svco = 2, .spd = 0, .scr = 0, .sbs = 4, .gc3 = 0},
424 { .lomax = 780000000, .svco = 2, .spd = 0, .scr = 1, .sbs = 4, .gc3 = 0},
425 { .lomax = 820000000, .svco = 3, .spd = 0, .scr = 0, .sbs = 4, .gc3 = 0},
426 { .lomax = 870000000, .svco = 3, .spd = 0, .scr = 1, .sbs = 4, .gc3 = 0},
427 { .lomax = 911000000, .svco = 3, .spd = 0, .scr = 2, .sbs = 4, .gc3 = 0},
428 { .lomax = 0, .svco = 0, .spd = 0, .scr = 0, .sbs = 0, .gc3 = 0}
429 };
430
431 static int tda827xa_sleep(struct dvb_frontend *fe)
432 {
433 struct tda827x_priv *priv = fe->tuner_priv;
434 static u8 buf[] = { 0x30, 0x90 };
435 struct i2c_msg msg = { .addr = priv->i2c_addr, .flags = 0,
436 .buf = buf, .len = sizeof(buf) };
437
438 dprintk("%s:\n", __func__);
439
440 tuner_transfer(fe, &msg, 1);
441
442 if (priv->cfg && priv->cfg->sleep)
443 priv->cfg->sleep(fe);
444
445 return 0;
446 }
447
448 static void tda827xa_lna_gain(struct dvb_frontend *fe, int high,
449 struct analog_parameters *params)
450 {
451 struct tda827x_priv *priv = fe->tuner_priv;
452 unsigned char buf[] = {0x22, 0x01};
453 int arg;
454 int gp_func;
455 struct i2c_msg msg = { .flags = 0, .buf = buf, .len = sizeof(buf) };
456
457 if (NULL == priv->cfg) {
458 dprintk("tda827x_config not defined, cannot set LNA gain!\n");
459 return;
460 }
461 msg.addr = priv->cfg->switch_addr;
462 if (priv->cfg->config) {
463 if (high)
464 dprintk("setting LNA to high gain\n");
465 else
466 dprintk("setting LNA to low gain\n");
467 }
468 switch (priv->cfg->config) {
469 case TDA8290_LNA_OFF: /* no LNA */
470 break;
471 case TDA8290_LNA_GP0_HIGH_ON: /* switch is GPIO 0 of tda8290 */
472 case TDA8290_LNA_GP0_HIGH_OFF:
473 if (params == NULL) {
474 gp_func = 0;
475 arg = 0;
476 } else {
477 /* turn Vsync on */
478 gp_func = 1;
479 if (params->std & V4L2_STD_MN)
480 arg = 1;
481 else
482 arg = 0;
483 }
484 if (fe->callback)
485 fe->callback(priv->i2c_adap->algo_data,
486 DVB_FRONTEND_COMPONENT_TUNER,
487 gp_func, arg);
488 buf[1] = high ? 0 : 1;
489 if (priv->cfg->config == TDA8290_LNA_GP0_HIGH_OFF)
490 buf[1] = high ? 1 : 0;
491 tuner_transfer(fe, &msg, 1);
492 break;
493 case TDA8290_LNA_ON_BRIDGE: /* switch with GPIO of saa713x */
494 if (fe->callback)
495 fe->callback(priv->i2c_adap->algo_data,
496 DVB_FRONTEND_COMPONENT_TUNER, 0, high);
497 break;
498 }
499 }
500
501 static int tda827xa_set_params(struct dvb_frontend *fe)
502 {
503 struct dtv_frontend_properties *c = &fe->dtv_property_cache;
504 struct tda827x_priv *priv = fe->tuner_priv;
505 struct tda827xa_data *frequency_map = tda827xa_dvbt;
506 u8 buf[11];
507
508 struct i2c_msg msg = { .addr = priv->i2c_addr, .flags = 0,
509 .buf = buf, .len = sizeof(buf) };
510
511 int i, tuner_freq, if_freq, rc;
512 u32 N;
513
514 dprintk("%s:\n", __func__);
515
516 tda827xa_lna_gain(fe, 1, NULL);
517 msleep(20);
518
519 if (c->bandwidth_hz == 0) {
520 if_freq = 5000000;
521 } else if (c->bandwidth_hz <= 6000000) {
522 if_freq = 4000000;
523 } else if (c->bandwidth_hz <= 7000000) {
524 if_freq = 4500000;
525 } else { /* 8 MHz */
526 if_freq = 5000000;
527 }
528 tuner_freq = c->frequency;
529
530 switch (c->delivery_system) {
531 case SYS_DVBC_ANNEX_A:
532 case SYS_DVBC_ANNEX_C:
533 dprintk("%s select tda827xa_dvbc\n", __func__);
534 frequency_map = tda827xa_dvbc;
535 break;
536 default:
537 break;
538 }
539
540 i = 0;
541 while (frequency_map[i].lomax < tuner_freq) {
542 if (frequency_map[i + 1].lomax == 0)
543 break;
544 i++;
545 }
546
547 tuner_freq += if_freq;
548
549 N = ((tuner_freq + 31250) / 62500) << frequency_map[i].spd;
550 buf[0] = 0; // subaddress
551 buf[1] = N >> 8;
552 buf[2] = N & 0xff;
553 buf[3] = 0;
554 buf[4] = 0x16;
555 buf[5] = (frequency_map[i].spd << 5) + (frequency_map[i].svco << 3) +
556 frequency_map[i].sbs;
557 buf[6] = 0x4b + (frequency_map[i].gc3 << 4);
558 buf[7] = 0x1c;
559 buf[8] = 0x06;
560 buf[9] = 0x24;
561 buf[10] = 0x00;
562 msg.len = 11;
563 rc = tuner_transfer(fe, &msg, 1);
564 if (rc < 0)
565 goto err;
566
567 buf[0] = 0x90;
568 buf[1] = 0xff;
569 buf[2] = 0x60;
570 buf[3] = 0x00;
571 buf[4] = 0x59; // lpsel, for 6MHz + 2
572 msg.len = 5;
573 rc = tuner_transfer(fe, &msg, 1);
574 if (rc < 0)
575 goto err;
576
577 buf[0] = 0xa0;
578 buf[1] = 0x40;
579 msg.len = 2;
580 rc = tuner_transfer(fe, &msg, 1);
581 if (rc < 0)
582 goto err;
583
584 msleep(11);
585 msg.flags = I2C_M_RD;
586 rc = tuner_transfer(fe, &msg, 1);
587 if (rc < 0)
588 goto err;
589 msg.flags = 0;
590
591 buf[1] >>= 4;
592 dprintk("tda8275a AGC2 gain is: %d\n", buf[1]);
593 if ((buf[1]) < 2) {
594 tda827xa_lna_gain(fe, 0, NULL);
595 buf[0] = 0x60;
596 buf[1] = 0x0c;
597 rc = tuner_transfer(fe, &msg, 1);
598 if (rc < 0)
599 goto err;
600 }
601
602 buf[0] = 0xc0;
603 buf[1] = 0x99; // lpsel, for 6MHz + 2
604 rc = tuner_transfer(fe, &msg, 1);
605 if (rc < 0)
606 goto err;
607
608 buf[0] = 0x60;
609 buf[1] = 0x3c;
610 rc = tuner_transfer(fe, &msg, 1);
611 if (rc < 0)
612 goto err;
613
614 /* correct CP value */
615 buf[0] = 0x30;
616 buf[1] = 0x10 + frequency_map[i].scr;
617 rc = tuner_transfer(fe, &msg, 1);
618 if (rc < 0)
619 goto err;
620
621 msleep(163);
622 buf[0] = 0xc0;
623 buf[1] = 0x39; // lpsel, for 6MHz + 2
624 rc = tuner_transfer(fe, &msg, 1);
625 if (rc < 0)
626 goto err;
627
628 msleep(3);
629 /* freeze AGC1 */
630 buf[0] = 0x50;
631 buf[1] = 0x4f + (frequency_map[i].gc3 << 4);
632 rc = tuner_transfer(fe, &msg, 1);
633 if (rc < 0)
634 goto err;
635
636 priv->frequency = c->frequency;
637 priv->bandwidth = c->bandwidth_hz;
638
639 return 0;
640
641 err:
642 printk(KERN_ERR "%s: could not write to tuner at addr: 0x%02x\n",
643 __func__, priv->i2c_addr << 1);
644 return rc;
645 }
646
647
648 static int tda827xa_set_analog_params(struct dvb_frontend *fe,
649 struct analog_parameters *params)
650 {
651 unsigned char tuner_reg[11];
652 u32 N;
653 int i;
654 struct tda827x_priv *priv = fe->tuner_priv;
655 struct i2c_msg msg = { .addr = priv->i2c_addr, .flags = 0,
656 .buf = tuner_reg, .len = sizeof(tuner_reg) };
657 unsigned int freq = params->frequency;
658
659 tda827x_set_std(fe, params);
660
661 tda827xa_lna_gain(fe, 1, params);
662 msleep(10);
663
664 if (params->mode == V4L2_TUNER_RADIO)
665 freq = freq / 1000;
666
667 N = freq + priv->sgIF;
668
669 i = 0;
670 while (tda827xa_analog[i].lomax < N * 62500) {
671 if (tda827xa_analog[i + 1].lomax == 0)
672 break;
673 i++;
674 }
675
676 N = N << tda827xa_analog[i].spd;
677
678 tuner_reg[0] = 0;
679 tuner_reg[1] = (unsigned char)(N>>8);
680 tuner_reg[2] = (unsigned char) N;
681 tuner_reg[3] = 0;
682 tuner_reg[4] = 0x16;
683 tuner_reg[5] = (tda827xa_analog[i].spd << 5) +
684 (tda827xa_analog[i].svco << 3) +
685 tda827xa_analog[i].sbs;
686 tuner_reg[6] = 0x8b + (tda827xa_analog[i].gc3 << 4);
687 tuner_reg[7] = 0x1c;
688 tuner_reg[8] = 4;
689 tuner_reg[9] = 0x20;
690 tuner_reg[10] = 0x00;
691 msg.len = 11;
692 tuner_transfer(fe, &msg, 1);
693
694 tuner_reg[0] = 0x90;
695 tuner_reg[1] = 0xff;
696 tuner_reg[2] = 0xe0;
697 tuner_reg[3] = 0;
698 tuner_reg[4] = 0x99 + (priv->lpsel << 1);
699 msg.len = 5;
700 tuner_transfer(fe, &msg, 1);
701
702 tuner_reg[0] = 0xa0;
703 tuner_reg[1] = 0xc0;
704 msg.len = 2;
705 tuner_transfer(fe, &msg, 1);
706
707 tuner_reg[0] = 0x30;
708 tuner_reg[1] = 0x10 + tda827xa_analog[i].scr;
709 tuner_transfer(fe, &msg, 1);
710
711 msg.flags = I2C_M_RD;
712 tuner_transfer(fe, &msg, 1);
713 msg.flags = 0;
714 tuner_reg[1] >>= 4;
715 dprintk("AGC2 gain is: %d\n", tuner_reg[1]);
716 if (tuner_reg[1] < 1)
717 tda827xa_lna_gain(fe, 0, params);
718
719 msleep(100);
720 tuner_reg[0] = 0x60;
721 tuner_reg[1] = 0x3c;
722 tuner_transfer(fe, &msg, 1);
723
724 msleep(163);
725 tuner_reg[0] = 0x50;
726 tuner_reg[1] = 0x8f + (tda827xa_analog[i].gc3 << 4);
727 tuner_transfer(fe, &msg, 1);
728
729 tuner_reg[0] = 0x80;
730 tuner_reg[1] = 0x28;
731 tuner_transfer(fe, &msg, 1);
732
733 tuner_reg[0] = 0xb0;
734 tuner_reg[1] = 0x01;
735 tuner_transfer(fe, &msg, 1);
736
737 tuner_reg[0] = 0xc0;
738 tuner_reg[1] = 0x19 + (priv->lpsel << 1);
739 tuner_transfer(fe, &msg, 1);
740
741 priv->frequency = params->frequency;
742
743 return 0;
744 }
745
746 static void tda827xa_agcf(struct dvb_frontend *fe)
747 {
748 struct tda827x_priv *priv = fe->tuner_priv;
749 unsigned char data[] = {0x80, 0x2c};
750 struct i2c_msg msg = {.addr = priv->i2c_addr, .flags = 0,
751 .buf = data, .len = 2};
752 tuner_transfer(fe, &msg, 1);
753 }
754
755 /* ------------------------------------------------------------------ */
756
757 static void tda827x_release(struct dvb_frontend *fe)
758 {
759 kfree(fe->tuner_priv);
760 fe->tuner_priv = NULL;
761 }
762
763 static int tda827x_get_frequency(struct dvb_frontend *fe, u32 *frequency)
764 {
765 struct tda827x_priv *priv = fe->tuner_priv;
766 *frequency = priv->frequency;
767 return 0;
768 }
769
770 static int tda827x_get_bandwidth(struct dvb_frontend *fe, u32 *bandwidth)
771 {
772 struct tda827x_priv *priv = fe->tuner_priv;
773 *bandwidth = priv->bandwidth;
774 return 0;
775 }
776
777 static int tda827x_init(struct dvb_frontend *fe)
778 {
779 struct tda827x_priv *priv = fe->tuner_priv;
780 dprintk("%s:\n", __func__);
781 if (priv->cfg && priv->cfg->init)
782 priv->cfg->init(fe);
783
784 return 0;
785 }
786
787 static int tda827x_probe_version(struct dvb_frontend *fe);
788
789 static int tda827x_initial_init(struct dvb_frontend *fe)
790 {
791 int ret;
792 ret = tda827x_probe_version(fe);
793 if (ret)
794 return ret;
795 return fe->ops.tuner_ops.init(fe);
796 }
797
798 static int tda827x_initial_sleep(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.sleep(fe);
805 }
806
807 static const struct dvb_tuner_ops tda827xo_tuner_ops = {
808 .info = {
809 .name = "Philips TDA827X",
810 .frequency_min_hz = 55 * MHz,
811 .frequency_max_hz = 860 * MHz,
812 .frequency_step_hz = 250 * kHz
813 },
814 .release = tda827x_release,
815 .init = tda827x_initial_init,
816 .sleep = tda827x_initial_sleep,
817 .set_params = tda827xo_set_params,
818 .set_analog_params = tda827xo_set_analog_params,
819 .get_frequency = tda827x_get_frequency,
820 .get_bandwidth = tda827x_get_bandwidth,
821 };
822
823 static const struct dvb_tuner_ops tda827xa_tuner_ops = {
824 .info = {
825 .name = "Philips TDA827XA",
826 .frequency_min_hz = 44 * MHz,
827 .frequency_max_hz = 906 * MHz,
828 .frequency_step_hz = 62500
829 },
830 .release = tda827x_release,
831 .init = tda827x_init,
832 .sleep = tda827xa_sleep,
833 .set_params = tda827xa_set_params,
834 .set_analog_params = tda827xa_set_analog_params,
835 .get_frequency = tda827x_get_frequency,
836 .get_bandwidth = tda827x_get_bandwidth,
837 };
838
839 static int tda827x_probe_version(struct dvb_frontend *fe)
840 {
841 u8 data;
842 int rc;
843 struct tda827x_priv *priv = fe->tuner_priv;
844 struct i2c_msg msg = { .addr = priv->i2c_addr, .flags = I2C_M_RD,
845 .buf = &data, .len = 1 };
846
847 rc = tuner_transfer(fe, &msg, 1);
848
849 if (rc < 0) {
850 printk("%s: could not read from tuner at addr: 0x%02x\n",
851 __func__, msg.addr << 1);
852 return rc;
853 }
854 if ((data & 0x3c) == 0) {
855 dprintk("tda827x tuner found\n");
856 fe->ops.tuner_ops.init = tda827x_init;
857 fe->ops.tuner_ops.sleep = tda827xo_sleep;
858 if (priv->cfg)
859 priv->cfg->agcf = tda827xo_agcf;
860 } else {
861 dprintk("tda827xa tuner found\n");
862 memcpy(&fe->ops.tuner_ops, &tda827xa_tuner_ops, sizeof(struct dvb_tuner_ops));
863 if (priv->cfg)
864 priv->cfg->agcf = tda827xa_agcf;
865 }
866 return 0;
867 }
868
869 struct dvb_frontend *tda827x_attach(struct dvb_frontend *fe, int addr,
870 struct i2c_adapter *i2c,
871 struct tda827x_config *cfg)
872 {
873 struct tda827x_priv *priv = NULL;
874
875 dprintk("%s:\n", __func__);
876 priv = kzalloc(sizeof(struct tda827x_priv), GFP_KERNEL);
877 if (priv == NULL)
878 return NULL;
879
880 priv->i2c_addr = addr;
881 priv->i2c_adap = i2c;
882 priv->cfg = cfg;
883 memcpy(&fe->ops.tuner_ops, &tda827xo_tuner_ops, sizeof(struct dvb_tuner_ops));
884 fe->tuner_priv = priv;
885
886 dprintk("type set to %s\n", fe->ops.tuner_ops.info.name);
887
888 return fe;
889 }
890 EXPORT_SYMBOL_GPL(tda827x_attach);
891
892 MODULE_DESCRIPTION("DVB TDA827x driver");
893 MODULE_AUTHOR("Hartmut Hackmann <hartmut.hackmann@t-online.de>");
894 MODULE_AUTHOR("Michael Krufky <mkrufky@linuxtv.org>");
895 MODULE_LICENSE("GPL");
Linux with added FPC-III support