3 * (c) 2005 Hartmut Hackmann
4 * (c) 2007 Michael Krufky
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.
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.
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.
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>
30 module_param(debug, int, 0644);
31 MODULE_PARM_DESC(debug, "Turn on/off frontend debugging (default:off).");
33 #define dprintk(args...) \
35 if (debug) printk(KERN_DEBUG "tda827x: " args); \
40 struct i2c_adapter *i2c_adap;
41 struct tda827x_config *cfg;
50 static void tda827x_set_std(struct dvb_frontend *fe,
51 struct analog_parameters *params)
53 struct tda827x_priv *priv = fe->tuner_priv;
57 if (params->std & V4L2_STD_MN) {
61 } else if (params->std & V4L2_STD_B) {
64 } else if (params->std & V4L2_STD_GH) {
67 } else if (params->std & V4L2_STD_PAL_I) {
70 } else if (params->std & V4L2_STD_DK) {
73 } else if (params->std & V4L2_STD_SECAM_L) {
76 } else if (params->std & V4L2_STD_SECAM_LC) {
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");
88 dprintk("setting tda827x to system %s\n", mode);
92 /* ------------------------------------------------------------------ */
104 static 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}
136 static int tuner_transfer(struct dvb_frontend *fe,
141 struct tda827x_priv *priv = fe->tuner_priv;
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);
149 if (rc >= 0 && rc != size)
155 static int tda827xo_set_params(struct dvb_frontend *fe)
157 struct dtv_frontend_properties *c = &fe->dtv_property_cache;
158 struct tda827x_priv *priv = fe->tuner_priv;
162 struct i2c_msg msg = { .addr = priv->i2c_addr, .flags = 0,
163 .buf = buf, .len = sizeof(buf) };
164 int i, tuner_freq, if_freq;
167 dprintk("%s:\n", __func__);
168 if (c->bandwidth_hz == 0) {
170 } else if (c->bandwidth_hz <= 6000000) {
172 } else if (c->bandwidth_hz <= 7000000) {
177 tuner_freq = c->frequency;
180 while (tda827x_table[i].lomax < tuner_freq) {
181 if (tda827x_table[i + 1].lomax == 0)
186 tuner_freq += if_freq;
188 N = ((tuner_freq + 125000) / 250000) << (tda827x_table[i].spd + 2);
190 buf[1] = (N>>8) | 0x40;
194 buf[5] = (tda827x_table[i].spd << 6) + (tda827x_table[i].div1p5 << 5) +
195 (tda827x_table[i].bs << 3) +
197 buf[6] = (tda827x_table[i].gc3 << 4) + 0x8f;
207 rc = tuner_transfer(fe, &msg, 1);
212 /* correct CP value */
214 buf[1] = 0x50 + tda827x_table[i].cp;
217 rc = tuner_transfer(fe, &msg, 1);
221 priv->frequency = c->frequency;
222 priv->bandwidth = c->bandwidth_hz;
227 printk(KERN_ERR "%s: could not write to tuner at addr: 0x%02x\n",
228 __func__, priv->i2c_addr << 1);
232 static int tda827xo_sleep(struct dvb_frontend *fe)
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) };
239 dprintk("%s:\n", __func__);
240 tuner_transfer(fe, &msg, 1);
242 if (priv->cfg && priv->cfg->sleep)
243 priv->cfg->sleep(fe);
248 /* ------------------------------------------------------------------ */
250 static int tda827xo_set_analog_params(struct dvb_frontend *fe,
251 struct analog_parameters *params)
253 unsigned char tuner_reg[8];
254 unsigned char reg2[2];
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;
261 tda827x_set_std(fe, params);
263 if (params->mode == V4L2_TUNER_RADIO)
266 N = freq + priv->sgIF;
269 while (tda827x_table[i].lomax < N * 62500) {
270 if (tda827x_table[i + 1].lomax == 0)
275 N = N << tda827x_table[i].spd;
278 tuner_reg[1] = (unsigned char)(N>>8);
279 tuner_reg[2] = (unsigned char) N;
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);
290 tuner_transfer(fe, &msg, 1);
296 tuner_transfer(fe, &msg, 1);
300 tuner_transfer(fe, &msg, 1);
303 reg2[1] = tuner_reg[4] + 0x80;
304 tuner_transfer(fe, &msg, 1);
308 reg2[1] = tuner_reg[4] + 4;
309 tuner_transfer(fe, &msg, 1);
313 reg2[1] = tuner_reg[4];
314 tuner_transfer(fe, &msg, 1);
318 reg2[1] = (tuner_reg[4] & 0xfc) + tda827x_table[i].cp;
319 tuner_transfer(fe, &msg, 1);
323 tuner_transfer(fe, &msg, 1);
326 reg2[1] = 0x08; /* Vsync en */
327 tuner_transfer(fe, &msg, 1);
329 priv->frequency = params->frequency;
334 static void tda827xo_agcf(struct dvb_frontend *fe)
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};
341 tuner_transfer(fe, &msg, 1);
344 /* ------------------------------------------------------------------ */
346 struct tda827xa_data {
355 static 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}
385 static 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}
415 static 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}
444 static int tda827xa_sleep(struct dvb_frontend *fe)
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) };
451 dprintk("%s:\n", __func__);
453 tuner_transfer(fe, &msg, 1);
455 if (priv->cfg && priv->cfg->sleep)
456 priv->cfg->sleep(fe);
461 static void tda827xa_lna_gain(struct dvb_frontend *fe, int high,
462 struct analog_parameters *params)
464 struct tda827x_priv *priv = fe->tuner_priv;
465 unsigned char buf[] = {0x22, 0x01};
468 struct i2c_msg msg = { .flags = 0, .buf = buf, .len = sizeof(buf) };
470 if (NULL == priv->cfg) {
471 dprintk("tda827x_config not defined, cannot set LNA gain!\n");
474 msg.addr = priv->cfg->switch_addr;
475 if (priv->cfg->config) {
477 dprintk("setting LNA to high gain\n");
479 dprintk("setting LNA to low gain\n");
481 switch (priv->cfg->config) {
482 case TDA8290_LNA_OFF: /* no LNA */
484 case TDA8290_LNA_GP0_HIGH_ON: /* switch is GPIO 0 of tda8290 */
485 case TDA8290_LNA_GP0_HIGH_OFF:
486 if (params == NULL) {
492 if (params->std & V4L2_STD_MN)
498 fe->callback(priv->i2c_adap->algo_data,
499 DVB_FRONTEND_COMPONENT_TUNER,
501 buf[1] = high ? 0 : 1;
502 if (priv->cfg->config == TDA8290_LNA_GP0_HIGH_OFF)
503 buf[1] = high ? 1 : 0;
504 tuner_transfer(fe, &msg, 1);
506 case TDA8290_LNA_ON_BRIDGE: /* switch with GPIO of saa713x */
508 fe->callback(priv->i2c_adap->algo_data,
509 DVB_FRONTEND_COMPONENT_TUNER, 0, high);
514 static int tda827xa_set_params(struct dvb_frontend *fe)
516 struct dtv_frontend_properties *c = &fe->dtv_property_cache;
517 struct tda827x_priv *priv = fe->tuner_priv;
518 struct tda827xa_data *frequency_map = tda827xa_dvbt;
521 struct i2c_msg msg = { .addr = priv->i2c_addr, .flags = 0,
522 .buf = buf, .len = sizeof(buf) };
524 int i, tuner_freq, if_freq, rc;
527 dprintk("%s:\n", __func__);
529 tda827xa_lna_gain(fe, 1, NULL);
532 if (c->bandwidth_hz == 0) {
534 } else if (c->bandwidth_hz <= 6000000) {
536 } else if (c->bandwidth_hz <= 7000000) {
541 tuner_freq = c->frequency;
543 switch (c->delivery_system) {
544 case SYS_DVBC_ANNEX_A:
545 case SYS_DVBC_ANNEX_C:
546 dprintk("%s select tda827xa_dvbc\n", __func__);
547 frequency_map = tda827xa_dvbc;
554 while (frequency_map[i].lomax < tuner_freq) {
555 if (frequency_map[i + 1].lomax == 0)
560 tuner_freq += if_freq;
562 N = ((tuner_freq + 31250) / 62500) << frequency_map[i].spd;
563 buf[0] = 0; // subaddress
568 buf[5] = (frequency_map[i].spd << 5) + (frequency_map[i].svco << 3) +
569 frequency_map[i].sbs;
570 buf[6] = 0x4b + (frequency_map[i].gc3 << 4);
576 rc = tuner_transfer(fe, &msg, 1);
584 buf[4] = 0x59; // lpsel, for 6MHz + 2
586 rc = tuner_transfer(fe, &msg, 1);
593 rc = tuner_transfer(fe, &msg, 1);
598 msg.flags = I2C_M_RD;
599 rc = tuner_transfer(fe, &msg, 1);
605 dprintk("tda8275a AGC2 gain is: %d\n", buf[1]);
607 tda827xa_lna_gain(fe, 0, NULL);
610 rc = tuner_transfer(fe, &msg, 1);
616 buf[1] = 0x99; // lpsel, for 6MHz + 2
617 rc = tuner_transfer(fe, &msg, 1);
623 rc = tuner_transfer(fe, &msg, 1);
627 /* correct CP value */
629 buf[1] = 0x10 + frequency_map[i].scr;
630 rc = tuner_transfer(fe, &msg, 1);
636 buf[1] = 0x39; // lpsel, for 6MHz + 2
637 rc = tuner_transfer(fe, &msg, 1);
644 buf[1] = 0x4f + (frequency_map[i].gc3 << 4);
645 rc = tuner_transfer(fe, &msg, 1);
649 priv->frequency = c->frequency;
650 priv->bandwidth = c->bandwidth_hz;
655 printk(KERN_ERR "%s: could not write to tuner at addr: 0x%02x\n",
656 __func__, priv->i2c_addr << 1);
661 static int tda827xa_set_analog_params(struct dvb_frontend *fe,
662 struct analog_parameters *params)
664 unsigned char tuner_reg[11];
667 struct tda827x_priv *priv = fe->tuner_priv;
668 struct i2c_msg msg = { .addr = priv->i2c_addr, .flags = 0,
669 .buf = tuner_reg, .len = sizeof(tuner_reg) };
670 unsigned int freq = params->frequency;
672 tda827x_set_std(fe, params);
674 tda827xa_lna_gain(fe, 1, params);
677 if (params->mode == V4L2_TUNER_RADIO)
680 N = freq + priv->sgIF;
683 while (tda827xa_analog[i].lomax < N * 62500) {
684 if (tda827xa_analog[i + 1].lomax == 0)
689 N = N << tda827xa_analog[i].spd;
692 tuner_reg[1] = (unsigned char)(N>>8);
693 tuner_reg[2] = (unsigned char) N;
696 tuner_reg[5] = (tda827xa_analog[i].spd << 5) +
697 (tda827xa_analog[i].svco << 3) +
698 tda827xa_analog[i].sbs;
699 tuner_reg[6] = 0x8b + (tda827xa_analog[i].gc3 << 4);
703 tuner_reg[10] = 0x00;
705 tuner_transfer(fe, &msg, 1);
711 tuner_reg[4] = 0x99 + (priv->lpsel << 1);
713 tuner_transfer(fe, &msg, 1);
718 tuner_transfer(fe, &msg, 1);
721 tuner_reg[1] = 0x10 + tda827xa_analog[i].scr;
722 tuner_transfer(fe, &msg, 1);
724 msg.flags = I2C_M_RD;
725 tuner_transfer(fe, &msg, 1);
728 dprintk("AGC2 gain is: %d\n", tuner_reg[1]);
729 if (tuner_reg[1] < 1)
730 tda827xa_lna_gain(fe, 0, params);
735 tuner_transfer(fe, &msg, 1);
739 tuner_reg[1] = 0x8f + (tda827xa_analog[i].gc3 << 4);
740 tuner_transfer(fe, &msg, 1);
744 tuner_transfer(fe, &msg, 1);
748 tuner_transfer(fe, &msg, 1);
751 tuner_reg[1] = 0x19 + (priv->lpsel << 1);
752 tuner_transfer(fe, &msg, 1);
754 priv->frequency = params->frequency;
759 static void tda827xa_agcf(struct dvb_frontend *fe)
761 struct tda827x_priv *priv = fe->tuner_priv;
762 unsigned char data[] = {0x80, 0x2c};
763 struct i2c_msg msg = {.addr = priv->i2c_addr, .flags = 0,
764 .buf = data, .len = 2};
765 tuner_transfer(fe, &msg, 1);
768 /* ------------------------------------------------------------------ */
770 static int tda827x_release(struct dvb_frontend *fe)
772 kfree(fe->tuner_priv);
773 fe->tuner_priv = NULL;
777 static int tda827x_get_frequency(struct dvb_frontend *fe, u32 *frequency)
779 struct tda827x_priv *priv = fe->tuner_priv;
780 *frequency = priv->frequency;
784 static int tda827x_get_bandwidth(struct dvb_frontend *fe, u32 *bandwidth)
786 struct tda827x_priv *priv = fe->tuner_priv;
787 *bandwidth = priv->bandwidth;
791 static int tda827x_init(struct dvb_frontend *fe)
793 struct tda827x_priv *priv = fe->tuner_priv;
794 dprintk("%s:\n", __func__);
795 if (priv->cfg && priv->cfg->init)
801 static int tda827x_probe_version(struct dvb_frontend *fe);
803 static int tda827x_initial_init(struct dvb_frontend *fe)
806 ret = tda827x_probe_version(fe);
809 return fe->ops.tuner_ops.init(fe);
812 static int tda827x_initial_sleep(struct dvb_frontend *fe)
815 ret = tda827x_probe_version(fe);
818 return fe->ops.tuner_ops.sleep(fe);
821 static struct dvb_tuner_ops tda827xo_tuner_ops = {
823 .name = "Philips TDA827X",
824 .frequency_min = 55000000,
825 .frequency_max = 860000000,
826 .frequency_step = 250000
828 .release = tda827x_release,
829 .init = tda827x_initial_init,
830 .sleep = tda827x_initial_sleep,
831 .set_params = tda827xo_set_params,
832 .set_analog_params = tda827xo_set_analog_params,
833 .get_frequency = tda827x_get_frequency,
834 .get_bandwidth = tda827x_get_bandwidth,
837 static struct dvb_tuner_ops tda827xa_tuner_ops = {
839 .name = "Philips TDA827XA",
840 .frequency_min = 44000000,
841 .frequency_max = 906000000,
842 .frequency_step = 62500
844 .release = tda827x_release,
845 .init = tda827x_init,
846 .sleep = tda827xa_sleep,
847 .set_params = tda827xa_set_params,
848 .set_analog_params = tda827xa_set_analog_params,
849 .get_frequency = tda827x_get_frequency,
850 .get_bandwidth = tda827x_get_bandwidth,
853 static int tda827x_probe_version(struct dvb_frontend *fe)
857 struct tda827x_priv *priv = fe->tuner_priv;
858 struct i2c_msg msg = { .addr = priv->i2c_addr, .flags = I2C_M_RD,
859 .buf = &data, .len = 1 };
861 rc = tuner_transfer(fe, &msg, 1);
864 printk("%s: could not read from tuner at addr: 0x%02x\n",
865 __func__, msg.addr << 1);
868 if ((data & 0x3c) == 0) {
869 dprintk("tda827x tuner found\n");
870 fe->ops.tuner_ops.init = tda827x_init;
871 fe->ops.tuner_ops.sleep = tda827xo_sleep;
873 priv->cfg->agcf = tda827xo_agcf;
875 dprintk("tda827xa tuner found\n");
876 memcpy(&fe->ops.tuner_ops, &tda827xa_tuner_ops, sizeof(struct dvb_tuner_ops));
878 priv->cfg->agcf = tda827xa_agcf;
883 struct dvb_frontend *tda827x_attach(struct dvb_frontend *fe, int addr,
884 struct i2c_adapter *i2c,
885 struct tda827x_config *cfg)
887 struct tda827x_priv *priv = NULL;
889 dprintk("%s:\n", __func__);
890 priv = kzalloc(sizeof(struct tda827x_priv), GFP_KERNEL);
894 priv->i2c_addr = addr;
895 priv->i2c_adap = i2c;
897 memcpy(&fe->ops.tuner_ops, &tda827xo_tuner_ops, sizeof(struct dvb_tuner_ops));
898 fe->tuner_priv = priv;
900 dprintk("type set to %s\n", fe->ops.tuner_ops.info.name);
904 EXPORT_SYMBOL_GPL(tda827x_attach);
906 MODULE_DESCRIPTION("DVB TDA827x driver");
907 MODULE_AUTHOR("Hartmut Hackmann <hartmut.hackmann@t-online.de>");
908 MODULE_AUTHOR("Michael Krufky <mkrufky@linuxtv.org>");
909 MODULE_LICENSE("GPL");