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 <asm/types.h>
23 #include <linux/dvb/frontend.h>
24 #include <linux/videodev2.h>
29 module_param(debug, int, 0644);
30 MODULE_PARM_DESC(debug, "Turn on/off frontend debugging (default:off).");
32 #define dprintk(args...) \
34 if (debug) printk(KERN_DEBUG "tda827x: " args); \
39 struct i2c_adapter *i2c_adap;
40 struct tda827x_config *cfg;
49 static void tda827x_set_std(struct dvb_frontend *fe,
50 struct analog_parameters *params)
52 struct tda827x_priv *priv = fe->tuner_priv;
56 if (params->std & V4L2_STD_MN) {
60 } else if (params->std & V4L2_STD_B) {
63 } else if (params->std & V4L2_STD_GH) {
66 } else if (params->std & V4L2_STD_PAL_I) {
69 } else if (params->std & V4L2_STD_DK) {
72 } else if (params->std & V4L2_STD_SECAM_L) {
75 } else if (params->std & V4L2_STD_SECAM_LC) {
83 if (params->mode == V4L2_TUNER_RADIO) {
84 priv->sgIF = 88; /* if frequency is 5.5 MHz */
85 dprintk("setting tda827x to radio FM\n");
87 dprintk("setting tda827x to system %s\n", mode);
91 /* ------------------------------------------------------------------ */
103 static const struct tda827x_data tda827x_table[] = {
104 { .lomax = 62000000, .spd = 3, .bs = 2, .bp = 0, .cp = 0, .gc3 = 3, .div1p5 = 1},
105 { .lomax = 66000000, .spd = 3, .bs = 3, .bp = 0, .cp = 0, .gc3 = 3, .div1p5 = 1},
106 { .lomax = 76000000, .spd = 3, .bs = 1, .bp = 0, .cp = 0, .gc3 = 3, .div1p5 = 0},
107 { .lomax = 84000000, .spd = 3, .bs = 2, .bp = 0, .cp = 0, .gc3 = 3, .div1p5 = 0},
108 { .lomax = 93000000, .spd = 3, .bs = 2, .bp = 0, .cp = 0, .gc3 = 1, .div1p5 = 0},
109 { .lomax = 98000000, .spd = 3, .bs = 3, .bp = 0, .cp = 0, .gc3 = 1, .div1p5 = 0},
110 { .lomax = 109000000, .spd = 3, .bs = 3, .bp = 1, .cp = 0, .gc3 = 1, .div1p5 = 0},
111 { .lomax = 123000000, .spd = 2, .bs = 2, .bp = 1, .cp = 0, .gc3 = 1, .div1p5 = 1},
112 { .lomax = 133000000, .spd = 2, .bs = 3, .bp = 1, .cp = 0, .gc3 = 1, .div1p5 = 1},
113 { .lomax = 151000000, .spd = 2, .bs = 1, .bp = 1, .cp = 0, .gc3 = 1, .div1p5 = 0},
114 { .lomax = 154000000, .spd = 2, .bs = 2, .bp = 1, .cp = 0, .gc3 = 1, .div1p5 = 0},
115 { .lomax = 181000000, .spd = 2, .bs = 2, .bp = 1, .cp = 0, .gc3 = 0, .div1p5 = 0},
116 { .lomax = 185000000, .spd = 2, .bs = 2, .bp = 2, .cp = 0, .gc3 = 1, .div1p5 = 0},
117 { .lomax = 217000000, .spd = 2, .bs = 3, .bp = 2, .cp = 0, .gc3 = 1, .div1p5 = 0},
118 { .lomax = 244000000, .spd = 1, .bs = 2, .bp = 2, .cp = 0, .gc3 = 1, .div1p5 = 1},
119 { .lomax = 265000000, .spd = 1, .bs = 3, .bp = 2, .cp = 0, .gc3 = 1, .div1p5 = 1},
120 { .lomax = 302000000, .spd = 1, .bs = 1, .bp = 2, .cp = 0, .gc3 = 1, .div1p5 = 0},
121 { .lomax = 324000000, .spd = 1, .bs = 2, .bp = 2, .cp = 0, .gc3 = 1, .div1p5 = 0},
122 { .lomax = 370000000, .spd = 1, .bs = 2, .bp = 3, .cp = 0, .gc3 = 1, .div1p5 = 0},
123 { .lomax = 454000000, .spd = 1, .bs = 3, .bp = 3, .cp = 0, .gc3 = 1, .div1p5 = 0},
124 { .lomax = 493000000, .spd = 0, .bs = 2, .bp = 3, .cp = 0, .gc3 = 1, .div1p5 = 1},
125 { .lomax = 530000000, .spd = 0, .bs = 3, .bp = 3, .cp = 0, .gc3 = 1, .div1p5 = 1},
126 { .lomax = 554000000, .spd = 0, .bs = 1, .bp = 3, .cp = 0, .gc3 = 1, .div1p5 = 0},
127 { .lomax = 604000000, .spd = 0, .bs = 1, .bp = 4, .cp = 0, .gc3 = 0, .div1p5 = 0},
128 { .lomax = 696000000, .spd = 0, .bs = 2, .bp = 4, .cp = 0, .gc3 = 0, .div1p5 = 0},
129 { .lomax = 740000000, .spd = 0, .bs = 2, .bp = 4, .cp = 1, .gc3 = 0, .div1p5 = 0},
130 { .lomax = 820000000, .spd = 0, .bs = 3, .bp = 4, .cp = 0, .gc3 = 0, .div1p5 = 0},
131 { .lomax = 865000000, .spd = 0, .bs = 3, .bp = 4, .cp = 1, .gc3 = 0, .div1p5 = 0},
132 { .lomax = 0, .spd = 0, .bs = 0, .bp = 0, .cp = 0, .gc3 = 0, .div1p5 = 0}
135 static int tuner_transfer(struct dvb_frontend *fe,
140 struct tda827x_priv *priv = fe->tuner_priv;
142 if (fe->ops.i2c_gate_ctrl)
143 fe->ops.i2c_gate_ctrl(fe, 1);
144 rc = i2c_transfer(priv->i2c_adap, msg, size);
145 if (fe->ops.i2c_gate_ctrl)
146 fe->ops.i2c_gate_ctrl(fe, 0);
148 if (rc >= 0 && rc != size)
154 static int tda827xo_set_params(struct dvb_frontend *fe,
155 struct dvb_frontend_parameters *params)
157 struct tda827x_priv *priv = fe->tuner_priv;
161 struct i2c_msg msg = { .addr = priv->i2c_addr, .flags = 0,
162 .buf = buf, .len = sizeof(buf) };
163 int i, tuner_freq, if_freq;
166 dprintk("%s:\n", __func__);
167 switch (params->u.ofdm.bandwidth) {
168 case BANDWIDTH_6_MHZ:
171 case BANDWIDTH_7_MHZ:
174 default: /* 8 MHz or Auto */
178 tuner_freq = params->frequency + if_freq;
181 while (tda827x_table[i].lomax < tuner_freq) {
182 if (tda827x_table[i + 1].lomax == 0)
187 N = ((tuner_freq + 125000) / 250000) << (tda827x_table[i].spd + 2);
189 buf[1] = (N>>8) | 0x40;
193 buf[5] = (tda827x_table[i].spd << 6) + (tda827x_table[i].div1p5 << 5) +
194 (tda827x_table[i].bs << 3) +
196 buf[6] = (tda827x_table[i].gc3 << 4) + 0x8f;
206 rc = tuner_transfer(fe, &msg, 1);
211 /* correct CP value */
213 buf[1] = 0x50 + tda827x_table[i].cp;
216 rc = tuner_transfer(fe, &msg, 1);
220 priv->frequency = params->frequency;
221 priv->bandwidth = (fe->ops.info.type == FE_OFDM) ? params->u.ofdm.bandwidth : 0;
226 printk(KERN_ERR "%s: could not write to tuner at addr: 0x%02x\n",
227 __func__, priv->i2c_addr << 1);
231 static int tda827xo_sleep(struct dvb_frontend *fe)
233 struct tda827x_priv *priv = fe->tuner_priv;
234 static u8 buf[] = { 0x30, 0xd0 };
235 struct i2c_msg msg = { .addr = priv->i2c_addr, .flags = 0,
236 .buf = buf, .len = sizeof(buf) };
238 dprintk("%s:\n", __func__);
239 tuner_transfer(fe, &msg, 1);
241 if (priv->cfg && priv->cfg->sleep)
242 priv->cfg->sleep(fe);
247 /* ------------------------------------------------------------------ */
249 static int tda827xo_set_analog_params(struct dvb_frontend *fe,
250 struct analog_parameters *params)
252 unsigned char tuner_reg[8];
253 unsigned char reg2[2];
256 struct tda827x_priv *priv = fe->tuner_priv;
257 struct i2c_msg msg = { .addr = priv->i2c_addr, .flags = 0 };
258 unsigned int freq = params->frequency;
260 tda827x_set_std(fe, params);
262 if (params->mode == V4L2_TUNER_RADIO)
265 N = freq + priv->sgIF;
268 while (tda827x_table[i].lomax < N * 62500) {
269 if (tda827x_table[i + 1].lomax == 0)
274 N = N << tda827x_table[i].spd;
277 tuner_reg[1] = (unsigned char)(N>>8);
278 tuner_reg[2] = (unsigned char) N;
280 tuner_reg[4] = 0x52 + (priv->lpsel << 5);
281 tuner_reg[5] = (tda827x_table[i].spd << 6) +
282 (tda827x_table[i].div1p5 << 5) +
283 (tda827x_table[i].bs << 3) + tda827x_table[i].bp;
284 tuner_reg[6] = 0x8f + (tda827x_table[i].gc3 << 4);
289 tuner_transfer(fe, &msg, 1);
295 tuner_transfer(fe, &msg, 1);
299 tuner_transfer(fe, &msg, 1);
302 reg2[1] = tuner_reg[4] + 0x80;
303 tuner_transfer(fe, &msg, 1);
307 reg2[1] = tuner_reg[4] + 4;
308 tuner_transfer(fe, &msg, 1);
312 reg2[1] = tuner_reg[4];
313 tuner_transfer(fe, &msg, 1);
317 reg2[1] = (tuner_reg[4] & 0xfc) + tda827x_table[i].cp;
318 tuner_transfer(fe, &msg, 1);
322 tuner_transfer(fe, &msg, 1);
325 reg2[1] = 0x08; /* Vsync en */
326 tuner_transfer(fe, &msg, 1);
328 priv->frequency = params->frequency;
333 static void tda827xo_agcf(struct dvb_frontend *fe)
335 struct tda827x_priv *priv = fe->tuner_priv;
336 unsigned char data[] = { 0x80, 0x0c };
337 struct i2c_msg msg = { .addr = priv->i2c_addr, .flags = 0,
338 .buf = data, .len = 2};
340 tuner_transfer(fe, &msg, 1);
343 /* ------------------------------------------------------------------ */
345 struct tda827xa_data {
354 static struct tda827xa_data tda827xa_dvbt[] = {
355 { .lomax = 56875000, .svco = 3, .spd = 4, .scr = 0, .sbs = 0, .gc3 = 1},
356 { .lomax = 67250000, .svco = 0, .spd = 3, .scr = 0, .sbs = 0, .gc3 = 1},
357 { .lomax = 81250000, .svco = 1, .spd = 3, .scr = 0, .sbs = 0, .gc3 = 1},
358 { .lomax = 97500000, .svco = 2, .spd = 3, .scr = 0, .sbs = 0, .gc3 = 1},
359 { .lomax = 113750000, .svco = 3, .spd = 3, .scr = 0, .sbs = 1, .gc3 = 1},
360 { .lomax = 134500000, .svco = 0, .spd = 2, .scr = 0, .sbs = 1, .gc3 = 1},
361 { .lomax = 154000000, .svco = 1, .spd = 2, .scr = 0, .sbs = 1, .gc3 = 1},
362 { .lomax = 162500000, .svco = 1, .spd = 2, .scr = 0, .sbs = 1, .gc3 = 1},
363 { .lomax = 183000000, .svco = 2, .spd = 2, .scr = 0, .sbs = 1, .gc3 = 1},
364 { .lomax = 195000000, .svco = 2, .spd = 2, .scr = 0, .sbs = 2, .gc3 = 1},
365 { .lomax = 227500000, .svco = 3, .spd = 2, .scr = 0, .sbs = 2, .gc3 = 1},
366 { .lomax = 269000000, .svco = 0, .spd = 1, .scr = 0, .sbs = 2, .gc3 = 1},
367 { .lomax = 290000000, .svco = 1, .spd = 1, .scr = 0, .sbs = 2, .gc3 = 1},
368 { .lomax = 325000000, .svco = 1, .spd = 1, .scr = 0, .sbs = 3, .gc3 = 1},
369 { .lomax = 390000000, .svco = 2, .spd = 1, .scr = 0, .sbs = 3, .gc3 = 1},
370 { .lomax = 455000000, .svco = 3, .spd = 1, .scr = 0, .sbs = 3, .gc3 = 1},
371 { .lomax = 520000000, .svco = 0, .spd = 0, .scr = 0, .sbs = 3, .gc3 = 1},
372 { .lomax = 538000000, .svco = 0, .spd = 0, .scr = 1, .sbs = 3, .gc3 = 1},
373 { .lomax = 550000000, .svco = 1, .spd = 0, .scr = 0, .sbs = 3, .gc3 = 1},
374 { .lomax = 620000000, .svco = 1, .spd = 0, .scr = 0, .sbs = 4, .gc3 = 0},
375 { .lomax = 650000000, .svco = 1, .spd = 0, .scr = 1, .sbs = 4, .gc3 = 0},
376 { .lomax = 700000000, .svco = 2, .spd = 0, .scr = 0, .sbs = 4, .gc3 = 0},
377 { .lomax = 780000000, .svco = 2, .spd = 0, .scr = 1, .sbs = 4, .gc3 = 0},
378 { .lomax = 820000000, .svco = 3, .spd = 0, .scr = 0, .sbs = 4, .gc3 = 0},
379 { .lomax = 870000000, .svco = 3, .spd = 0, .scr = 1, .sbs = 4, .gc3 = 0},
380 { .lomax = 911000000, .svco = 3, .spd = 0, .scr = 2, .sbs = 4, .gc3 = 0},
381 { .lomax = 0, .svco = 0, .spd = 0, .scr = 0, .sbs = 0, .gc3 = 0}
384 static struct tda827xa_data tda827xa_dvbc[] = {
385 { .lomax = 50125000, .svco = 2, .spd = 4, .scr = 2, .sbs = 0, .gc3 = 3},
386 { .lomax = 58500000, .svco = 3, .spd = 4, .scr = 2, .sbs = 0, .gc3 = 3},
387 { .lomax = 69250000, .svco = 0, .spd = 3, .scr = 2, .sbs = 0, .gc3 = 3},
388 { .lomax = 83625000, .svco = 1, .spd = 3, .scr = 2, .sbs = 0, .gc3 = 3},
389 { .lomax = 97500000, .svco = 2, .spd = 3, .scr = 2, .sbs = 0, .gc3 = 3},
390 { .lomax = 100250000, .svco = 2, .spd = 3, .scr = 2, .sbs = 1, .gc3 = 1},
391 { .lomax = 117000000, .svco = 3, .spd = 3, .scr = 2, .sbs = 1, .gc3 = 1},
392 { .lomax = 138500000, .svco = 0, .spd = 2, .scr = 2, .sbs = 1, .gc3 = 1},
393 { .lomax = 167250000, .svco = 1, .spd = 2, .scr = 2, .sbs = 1, .gc3 = 1},
394 { .lomax = 187000000, .svco = 2, .spd = 2, .scr = 2, .sbs = 1, .gc3 = 1},
395 { .lomax = 200500000, .svco = 2, .spd = 2, .scr = 2, .sbs = 2, .gc3 = 1},
396 { .lomax = 234000000, .svco = 3, .spd = 2, .scr = 2, .sbs = 2, .gc3 = 3},
397 { .lomax = 277000000, .svco = 0, .spd = 1, .scr = 2, .sbs = 2, .gc3 = 3},
398 { .lomax = 325000000, .svco = 1, .spd = 1, .scr = 2, .sbs = 2, .gc3 = 1},
399 { .lomax = 334500000, .svco = 1, .spd = 1, .scr = 2, .sbs = 3, .gc3 = 3},
400 { .lomax = 401000000, .svco = 2, .spd = 1, .scr = 2, .sbs = 3, .gc3 = 3},
401 { .lomax = 468000000, .svco = 3, .spd = 1, .scr = 2, .sbs = 3, .gc3 = 1},
402 { .lomax = 535000000, .svco = 0, .spd = 0, .scr = 1, .sbs = 3, .gc3 = 1},
403 { .lomax = 554000000, .svco = 0, .spd = 0, .scr = 2, .sbs = 3, .gc3 = 1},
404 { .lomax = 638000000, .svco = 1, .spd = 0, .scr = 1, .sbs = 4, .gc3 = 1},
405 { .lomax = 669000000, .svco = 1, .spd = 0, .scr = 2, .sbs = 4, .gc3 = 1},
406 { .lomax = 720000000, .svco = 2, .spd = 0, .scr = 1, .sbs = 4, .gc3 = 1},
407 { .lomax = 802000000, .svco = 2, .spd = 0, .scr = 2, .sbs = 4, .gc3 = 1},
408 { .lomax = 835000000, .svco = 3, .spd = 0, .scr = 1, .sbs = 4, .gc3 = 1},
409 { .lomax = 885000000, .svco = 3, .spd = 0, .scr = 1, .sbs = 4, .gc3 = 1},
410 { .lomax = 911000000, .svco = 3, .spd = 0, .scr = 2, .sbs = 4, .gc3 = 1},
411 { .lomax = 0, .svco = 0, .spd = 0, .scr = 0, .sbs = 0, .gc3 = 0}
414 static struct tda827xa_data tda827xa_analog[] = {
415 { .lomax = 56875000, .svco = 3, .spd = 4, .scr = 0, .sbs = 0, .gc3 = 3},
416 { .lomax = 67250000, .svco = 0, .spd = 3, .scr = 0, .sbs = 0, .gc3 = 3},
417 { .lomax = 81250000, .svco = 1, .spd = 3, .scr = 0, .sbs = 0, .gc3 = 3},
418 { .lomax = 97500000, .svco = 2, .spd = 3, .scr = 0, .sbs = 0, .gc3 = 3},
419 { .lomax = 113750000, .svco = 3, .spd = 3, .scr = 0, .sbs = 1, .gc3 = 1},
420 { .lomax = 134500000, .svco = 0, .spd = 2, .scr = 0, .sbs = 1, .gc3 = 1},
421 { .lomax = 154000000, .svco = 1, .spd = 2, .scr = 0, .sbs = 1, .gc3 = 1},
422 { .lomax = 162500000, .svco = 1, .spd = 2, .scr = 0, .sbs = 1, .gc3 = 1},
423 { .lomax = 183000000, .svco = 2, .spd = 2, .scr = 0, .sbs = 1, .gc3 = 1},
424 { .lomax = 195000000, .svco = 2, .spd = 2, .scr = 0, .sbs = 2, .gc3 = 1},
425 { .lomax = 227500000, .svco = 3, .spd = 2, .scr = 0, .sbs = 2, .gc3 = 3},
426 { .lomax = 269000000, .svco = 0, .spd = 1, .scr = 0, .sbs = 2, .gc3 = 3},
427 { .lomax = 325000000, .svco = 1, .spd = 1, .scr = 0, .sbs = 2, .gc3 = 1},
428 { .lomax = 390000000, .svco = 2, .spd = 1, .scr = 0, .sbs = 3, .gc3 = 3},
429 { .lomax = 455000000, .svco = 3, .spd = 1, .scr = 0, .sbs = 3, .gc3 = 3},
430 { .lomax = 520000000, .svco = 0, .spd = 0, .scr = 0, .sbs = 3, .gc3 = 1},
431 { .lomax = 538000000, .svco = 0, .spd = 0, .scr = 1, .sbs = 3, .gc3 = 1},
432 { .lomax = 554000000, .svco = 1, .spd = 0, .scr = 0, .sbs = 3, .gc3 = 1},
433 { .lomax = 620000000, .svco = 1, .spd = 0, .scr = 0, .sbs = 4, .gc3 = 0},
434 { .lomax = 650000000, .svco = 1, .spd = 0, .scr = 1, .sbs = 4, .gc3 = 0},
435 { .lomax = 700000000, .svco = 2, .spd = 0, .scr = 0, .sbs = 4, .gc3 = 0},
436 { .lomax = 780000000, .svco = 2, .spd = 0, .scr = 1, .sbs = 4, .gc3 = 0},
437 { .lomax = 820000000, .svco = 3, .spd = 0, .scr = 0, .sbs = 4, .gc3 = 0},
438 { .lomax = 870000000, .svco = 3, .spd = 0, .scr = 1, .sbs = 4, .gc3 = 0},
439 { .lomax = 911000000, .svco = 3, .spd = 0, .scr = 2, .sbs = 4, .gc3 = 0},
440 { .lomax = 0, .svco = 0, .spd = 0, .scr = 0, .sbs = 0, .gc3 = 0}
443 static int tda827xa_sleep(struct dvb_frontend *fe)
445 struct tda827x_priv *priv = fe->tuner_priv;
446 static u8 buf[] = { 0x30, 0x90 };
447 struct i2c_msg msg = { .addr = priv->i2c_addr, .flags = 0,
448 .buf = buf, .len = sizeof(buf) };
450 dprintk("%s:\n", __func__);
452 tuner_transfer(fe, &msg, 1);
454 if (priv->cfg && priv->cfg->sleep)
455 priv->cfg->sleep(fe);
460 static void tda827xa_lna_gain(struct dvb_frontend *fe, int high,
461 struct analog_parameters *params)
463 struct tda827x_priv *priv = fe->tuner_priv;
464 unsigned char buf[] = {0x22, 0x01};
467 struct i2c_msg msg = { .flags = 0, .buf = buf, .len = sizeof(buf) };
469 if (NULL == priv->cfg) {
470 dprintk("tda827x_config not defined, cannot set LNA gain!\n");
473 msg.addr = priv->cfg->switch_addr;
474 if (priv->cfg->config) {
476 dprintk("setting LNA to high gain\n");
478 dprintk("setting LNA to low gain\n");
480 switch (priv->cfg->config) {
483 case 1: /* switch is GPIO 0 of tda8290 */
485 if (params == NULL) {
491 if (params->std & V4L2_STD_MN)
497 fe->callback(priv->i2c_adap->algo_data,
498 DVB_FRONTEND_COMPONENT_TUNER,
500 buf[1] = high ? 0 : 1;
501 if (priv->cfg->config == 2)
502 buf[1] = high ? 1 : 0;
503 tuner_transfer(fe, &msg, 1);
505 case 3: /* switch with GPIO of saa713x */
507 fe->callback(priv->i2c_adap->algo_data,
508 DVB_FRONTEND_COMPONENT_TUNER, 0, high);
513 static int tda827xa_set_params(struct dvb_frontend *fe,
514 struct dvb_frontend_parameters *params)
516 struct tda827x_priv *priv = fe->tuner_priv;
517 struct tda827xa_data *frequency_map = tda827xa_dvbt;
520 struct i2c_msg msg = { .addr = priv->i2c_addr, .flags = 0,
521 .buf = buf, .len = sizeof(buf) };
523 int i, tuner_freq, if_freq, rc;
526 dprintk("%s:\n", __func__);
528 tda827xa_lna_gain(fe, 1, NULL);
531 switch (params->u.ofdm.bandwidth) {
532 case BANDWIDTH_6_MHZ:
535 case BANDWIDTH_7_MHZ:
538 default: /* 8 MHz or Auto */
542 tuner_freq = params->frequency + if_freq;
544 if (fe->ops.info.type == FE_QAM) {
545 dprintk("%s select tda827xa_dvbc\n", __func__);
546 frequency_map = tda827xa_dvbc;
550 while (frequency_map[i].lomax < tuner_freq) {
551 if (frequency_map[i + 1].lomax == 0)
556 N = ((tuner_freq + 31250) / 62500) << frequency_map[i].spd;
557 buf[0] = 0; // subaddress
562 buf[5] = (frequency_map[i].spd << 5) + (frequency_map[i].svco << 3) +
563 frequency_map[i].sbs;
564 buf[6] = 0x4b + (frequency_map[i].gc3 << 4);
570 rc = tuner_transfer(fe, &msg, 1);
578 buf[4] = 0x59; // lpsel, for 6MHz + 2
580 rc = tuner_transfer(fe, &msg, 1);
587 rc = tuner_transfer(fe, &msg, 1);
592 msg.flags = I2C_M_RD;
593 rc = tuner_transfer(fe, &msg, 1);
599 dprintk("tda8275a AGC2 gain is: %d\n", buf[1]);
601 tda827xa_lna_gain(fe, 0, NULL);
604 rc = tuner_transfer(fe, &msg, 1);
610 buf[1] = 0x99; // lpsel, for 6MHz + 2
611 rc = tuner_transfer(fe, &msg, 1);
617 rc = tuner_transfer(fe, &msg, 1);
621 /* correct CP value */
623 buf[1] = 0x10 + frequency_map[i].scr;
624 rc = tuner_transfer(fe, &msg, 1);
630 buf[1] = 0x39; // lpsel, for 6MHz + 2
631 rc = tuner_transfer(fe, &msg, 1);
638 buf[1] = 0x4f + (frequency_map[i].gc3 << 4);
639 rc = tuner_transfer(fe, &msg, 1);
643 priv->frequency = params->frequency;
644 priv->bandwidth = (fe->ops.info.type == FE_OFDM) ? params->u.ofdm.bandwidth : 0;
650 printk(KERN_ERR "%s: could not write to tuner at addr: 0x%02x\n",
651 __func__, priv->i2c_addr << 1);
656 static int tda827xa_set_analog_params(struct dvb_frontend *fe,
657 struct analog_parameters *params)
659 unsigned char tuner_reg[11];
662 struct tda827x_priv *priv = fe->tuner_priv;
663 struct i2c_msg msg = { .addr = priv->i2c_addr, .flags = 0,
664 .buf = tuner_reg, .len = sizeof(tuner_reg) };
665 unsigned int freq = params->frequency;
667 tda827x_set_std(fe, params);
669 tda827xa_lna_gain(fe, 1, params);
672 if (params->mode == V4L2_TUNER_RADIO)
675 N = freq + priv->sgIF;
678 while (tda827xa_analog[i].lomax < N * 62500) {
679 if (tda827xa_analog[i + 1].lomax == 0)
684 N = N << tda827xa_analog[i].spd;
687 tuner_reg[1] = (unsigned char)(N>>8);
688 tuner_reg[2] = (unsigned char) N;
691 tuner_reg[5] = (tda827xa_analog[i].spd << 5) +
692 (tda827xa_analog[i].svco << 3) +
693 tda827xa_analog[i].sbs;
694 tuner_reg[6] = 0x8b + (tda827xa_analog[i].gc3 << 4);
698 tuner_reg[10] = 0x00;
700 tuner_transfer(fe, &msg, 1);
706 tuner_reg[4] = 0x99 + (priv->lpsel << 1);
708 tuner_transfer(fe, &msg, 1);
713 tuner_transfer(fe, &msg, 1);
716 tuner_reg[1] = 0x10 + tda827xa_analog[i].scr;
717 tuner_transfer(fe, &msg, 1);
719 msg.flags = I2C_M_RD;
720 tuner_transfer(fe, &msg, 1);
723 dprintk("AGC2 gain is: %d\n", tuner_reg[1]);
724 if (tuner_reg[1] < 1)
725 tda827xa_lna_gain(fe, 0, params);
730 tuner_transfer(fe, &msg, 1);
734 tuner_reg[1] = 0x8f + (tda827xa_analog[i].gc3 << 4);
735 tuner_transfer(fe, &msg, 1);
739 tuner_transfer(fe, &msg, 1);
743 tuner_transfer(fe, &msg, 1);
746 tuner_reg[1] = 0x19 + (priv->lpsel << 1);
747 tuner_transfer(fe, &msg, 1);
749 priv->frequency = params->frequency;
754 static void tda827xa_agcf(struct dvb_frontend *fe)
756 struct tda827x_priv *priv = fe->tuner_priv;
757 unsigned char data[] = {0x80, 0x2c};
758 struct i2c_msg msg = {.addr = priv->i2c_addr, .flags = 0,
759 .buf = data, .len = 2};
760 tuner_transfer(fe, &msg, 1);
763 /* ------------------------------------------------------------------ */
765 static int tda827x_release(struct dvb_frontend *fe)
767 kfree(fe->tuner_priv);
768 fe->tuner_priv = NULL;
772 static int tda827x_get_frequency(struct dvb_frontend *fe, u32 *frequency)
774 struct tda827x_priv *priv = fe->tuner_priv;
775 *frequency = priv->frequency;
779 static int tda827x_get_bandwidth(struct dvb_frontend *fe, u32 *bandwidth)
781 struct tda827x_priv *priv = fe->tuner_priv;
782 *bandwidth = priv->bandwidth;
786 static int tda827x_init(struct dvb_frontend *fe)
788 struct tda827x_priv *priv = fe->tuner_priv;
789 dprintk("%s:\n", __func__);
790 if (priv->cfg && priv->cfg->init)
796 static int tda827x_probe_version(struct dvb_frontend *fe);
798 static int tda827x_initial_init(struct dvb_frontend *fe)
801 ret = tda827x_probe_version(fe);
804 return fe->ops.tuner_ops.init(fe);
807 static int tda827x_initial_sleep(struct dvb_frontend *fe)
810 ret = tda827x_probe_version(fe);
813 return fe->ops.tuner_ops.sleep(fe);
816 static struct dvb_tuner_ops tda827xo_tuner_ops = {
818 .name = "Philips TDA827X",
819 .frequency_min = 55000000,
820 .frequency_max = 860000000,
821 .frequency_step = 250000
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,
832 static struct dvb_tuner_ops tda827xa_tuner_ops = {
834 .name = "Philips TDA827XA",
835 .frequency_min = 44000000,
836 .frequency_max = 906000000,
837 .frequency_step = 62500
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,
848 static int tda827x_probe_version(struct dvb_frontend *fe)
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 };
856 rc = tuner_transfer(fe, &msg, 1);
859 printk("%s: could not read from tuner at addr: 0x%02x\n",
860 __func__, msg.addr << 1);
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;
868 priv->cfg->agcf = tda827xo_agcf;
870 dprintk("tda827xa tuner found\n");
871 memcpy(&fe->ops.tuner_ops, &tda827xa_tuner_ops, sizeof(struct dvb_tuner_ops));
873 priv->cfg->agcf = tda827xa_agcf;
878 struct dvb_frontend *tda827x_attach(struct dvb_frontend *fe, int addr,
879 struct i2c_adapter *i2c,
880 struct tda827x_config *cfg)
882 struct tda827x_priv *priv = NULL;
884 dprintk("%s:\n", __func__);
885 priv = kzalloc(sizeof(struct tda827x_priv), GFP_KERNEL);
889 priv->i2c_addr = addr;
890 priv->i2c_adap = i2c;
892 memcpy(&fe->ops.tuner_ops, &tda827xo_tuner_ops, sizeof(struct dvb_tuner_ops));
893 fe->tuner_priv = priv;
895 dprintk("type set to %s\n", fe->ops.tuner_ops.info.name);
899 EXPORT_SYMBOL_GPL(tda827x_attach);
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");
907 * Overrides for Emacs so that we follow Linus's tabbing style.
908 * ---------------------------------------------------------------------------