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;
55 static const struct tda827x_data tda827x_table[] = {
56 { .lomax = 62000000, .spd = 3, .bs = 2, .bp = 0, .cp = 0, .gc3 = 3, .div1p5 = 1},
57 { .lomax = 66000000, .spd = 3, .bs = 3, .bp = 0, .cp = 0, .gc3 = 3, .div1p5 = 1},
58 { .lomax = 76000000, .spd = 3, .bs = 1, .bp = 0, .cp = 0, .gc3 = 3, .div1p5 = 0},
59 { .lomax = 84000000, .spd = 3, .bs = 2, .bp = 0, .cp = 0, .gc3 = 3, .div1p5 = 0},
60 { .lomax = 93000000, .spd = 3, .bs = 2, .bp = 0, .cp = 0, .gc3 = 1, .div1p5 = 0},
61 { .lomax = 98000000, .spd = 3, .bs = 3, .bp = 0, .cp = 0, .gc3 = 1, .div1p5 = 0},
62 { .lomax = 109000000, .spd = 3, .bs = 3, .bp = 1, .cp = 0, .gc3 = 1, .div1p5 = 0},
63 { .lomax = 123000000, .spd = 2, .bs = 2, .bp = 1, .cp = 0, .gc3 = 1, .div1p5 = 1},
64 { .lomax = 133000000, .spd = 2, .bs = 3, .bp = 1, .cp = 0, .gc3 = 1, .div1p5 = 1},
65 { .lomax = 151000000, .spd = 2, .bs = 1, .bp = 1, .cp = 0, .gc3 = 1, .div1p5 = 0},
66 { .lomax = 154000000, .spd = 2, .bs = 2, .bp = 1, .cp = 0, .gc3 = 1, .div1p5 = 0},
67 { .lomax = 181000000, .spd = 2, .bs = 2, .bp = 1, .cp = 0, .gc3 = 0, .div1p5 = 0},
68 { .lomax = 185000000, .spd = 2, .bs = 2, .bp = 2, .cp = 0, .gc3 = 1, .div1p5 = 0},
69 { .lomax = 217000000, .spd = 2, .bs = 3, .bp = 2, .cp = 0, .gc3 = 1, .div1p5 = 0},
70 { .lomax = 244000000, .spd = 1, .bs = 2, .bp = 2, .cp = 0, .gc3 = 1, .div1p5 = 1},
71 { .lomax = 265000000, .spd = 1, .bs = 3, .bp = 2, .cp = 0, .gc3 = 1, .div1p5 = 1},
72 { .lomax = 302000000, .spd = 1, .bs = 1, .bp = 2, .cp = 0, .gc3 = 1, .div1p5 = 0},
73 { .lomax = 324000000, .spd = 1, .bs = 2, .bp = 2, .cp = 0, .gc3 = 1, .div1p5 = 0},
74 { .lomax = 370000000, .spd = 1, .bs = 2, .bp = 3, .cp = 0, .gc3 = 1, .div1p5 = 0},
75 { .lomax = 454000000, .spd = 1, .bs = 3, .bp = 3, .cp = 0, .gc3 = 1, .div1p5 = 0},
76 { .lomax = 493000000, .spd = 0, .bs = 2, .bp = 3, .cp = 0, .gc3 = 1, .div1p5 = 1},
77 { .lomax = 530000000, .spd = 0, .bs = 3, .bp = 3, .cp = 0, .gc3 = 1, .div1p5 = 1},
78 { .lomax = 554000000, .spd = 0, .bs = 1, .bp = 3, .cp = 0, .gc3 = 1, .div1p5 = 0},
79 { .lomax = 604000000, .spd = 0, .bs = 1, .bp = 4, .cp = 0, .gc3 = 0, .div1p5 = 0},
80 { .lomax = 696000000, .spd = 0, .bs = 2, .bp = 4, .cp = 0, .gc3 = 0, .div1p5 = 0},
81 { .lomax = 740000000, .spd = 0, .bs = 2, .bp = 4, .cp = 1, .gc3 = 0, .div1p5 = 0},
82 { .lomax = 820000000, .spd = 0, .bs = 3, .bp = 4, .cp = 0, .gc3 = 0, .div1p5 = 0},
83 { .lomax = 865000000, .spd = 0, .bs = 3, .bp = 4, .cp = 1, .gc3 = 0, .div1p5 = 0},
84 { .lomax = 0, .spd = 0, .bs = 0, .bp = 0, .cp = 0, .gc3 = 0, .div1p5 = 0}
87 static int tda827xo_set_params(struct dvb_frontend *fe,
88 struct dvb_frontend_parameters *params)
90 struct tda827x_priv *priv = fe->tuner_priv;
93 struct i2c_msg msg = { .addr = priv->i2c_addr, .flags = 0,
94 .buf = buf, .len = sizeof(buf) };
95 int i, tuner_freq, if_freq;
98 dprintk("%s:\n", __FUNCTION__);
99 switch (params->u.ofdm.bandwidth) {
100 case BANDWIDTH_6_MHZ:
103 case BANDWIDTH_7_MHZ:
106 default: /* 8 MHz or Auto */
110 tuner_freq = params->frequency + if_freq;
113 while (tda827x_table[i].lomax < tuner_freq) {
114 if (tda827x_table[i + 1].lomax == 0)
119 N = ((tuner_freq + 125000) / 250000) << (tda827x_table[i].spd + 2);
121 buf[1] = (N>>8) | 0x40;
125 buf[5] = (tda827x_table[i].spd << 6) + (tda827x_table[i].div1p5 << 5) +
126 (tda827x_table[i].bs << 3) +
128 buf[6] = (tda827x_table[i].gc3 << 4) + 0x8f;
138 if (fe->ops.i2c_gate_ctrl)
139 fe->ops.i2c_gate_ctrl(fe, 1);
140 if (i2c_transfer(priv->i2c_adap, &msg, 1) != 1) {
141 printk("%s: could not write to tuner at addr: 0x%02x\n",
142 __FUNCTION__, priv->i2c_addr << 1);
146 /* correct CP value */
148 buf[1] = 0x50 + tda827x_table[i].cp;
151 if (fe->ops.i2c_gate_ctrl)
152 fe->ops.i2c_gate_ctrl(fe, 1);
153 i2c_transfer(priv->i2c_adap, &msg, 1);
155 priv->frequency = tuner_freq - if_freq; // FIXME
156 priv->bandwidth = (fe->ops.info.type == FE_OFDM) ? params->u.ofdm.bandwidth : 0;
161 static int tda827xo_sleep(struct dvb_frontend *fe)
163 struct tda827x_priv *priv = fe->tuner_priv;
164 static u8 buf[] = { 0x30, 0xd0 };
165 struct i2c_msg msg = { .addr = priv->i2c_addr, .flags = 0,
166 .buf = buf, .len = sizeof(buf) };
168 dprintk("%s:\n", __FUNCTION__);
169 if (fe->ops.i2c_gate_ctrl)
170 fe->ops.i2c_gate_ctrl(fe, 1);
171 i2c_transfer(priv->i2c_adap, &msg, 1);
173 if (priv->cfg && priv->cfg->sleep)
174 priv->cfg->sleep(fe);
179 /* ------------------------------------------------------------------ */
181 static int tda827xo_set_analog_params(struct dvb_frontend *fe,
182 struct analog_parameters *params)
184 unsigned char tuner_reg[8];
185 unsigned char reg2[2];
188 struct tda827x_priv *priv = fe->tuner_priv;
189 struct i2c_msg msg = { .addr = priv->i2c_addr, .flags = 0 };
190 unsigned int freq = params->frequency;
192 if (params->mode == V4L2_TUNER_RADIO)
195 N = freq + priv->cfg->sgIF;
198 while (tda827x_table[i].lomax < N * 62500) {
199 if (tda827x_table[i + 1].lomax == 0)
204 N = N << tda827x_table[i].spd;
207 tuner_reg[1] = (unsigned char)(N>>8);
208 tuner_reg[2] = (unsigned char) N;
210 tuner_reg[4] = 0x52 + (priv->cfg->tda827x_lpsel << 5);
211 tuner_reg[5] = (tda827x_table[i].spd << 6) +
212 (tda827x_table[i].div1p5 << 5) +
213 (tda827x_table[i].bs << 3) + tda827x_table[i].bp;
214 tuner_reg[6] = 0x8f + (tda827x_table[i].gc3 << 4);
219 i2c_transfer(priv->i2c_adap, &msg, 1);
225 i2c_transfer(priv->i2c_adap, &msg, 1);
229 i2c_transfer(priv->i2c_adap, &msg, 1);
232 reg2[1] = tuner_reg[4] + 0x80;
233 i2c_transfer(priv->i2c_adap, &msg, 1);
237 reg2[1] = tuner_reg[4] + 4;
238 i2c_transfer(priv->i2c_adap, &msg, 1);
242 reg2[1] = tuner_reg[4];
243 i2c_transfer(priv->i2c_adap, &msg, 1);
247 reg2[1] = (tuner_reg[4] & 0xfc) + tda827x_table[i].cp;
248 i2c_transfer(priv->i2c_adap, &msg, 1);
252 i2c_transfer(priv->i2c_adap, &msg, 1);
255 reg2[1] = 0x08; /* Vsync en */
256 i2c_transfer(priv->i2c_adap, &msg, 1);
258 priv->frequency = freq * 62500;
263 static void tda827xo_agcf(struct dvb_frontend *fe)
265 struct tda827x_priv *priv = fe->tuner_priv;
266 unsigned char data[] = { 0x80, 0x0c };
267 struct i2c_msg msg = { .addr = priv->i2c_addr, .flags = 0,
268 .buf = data, .len = 2};
270 i2c_transfer(priv->i2c_adap, &msg, 1);
273 /* ------------------------------------------------------------------ */
275 struct tda827xa_data {
284 static const struct tda827xa_data tda827xa_dvbt[] = {
285 { .lomax = 56875000, .svco = 3, .spd = 4, .scr = 0, .sbs = 0, .gc3 = 1},
286 { .lomax = 67250000, .svco = 0, .spd = 3, .scr = 0, .sbs = 0, .gc3 = 1},
287 { .lomax = 81250000, .svco = 1, .spd = 3, .scr = 0, .sbs = 0, .gc3 = 1},
288 { .lomax = 97500000, .svco = 2, .spd = 3, .scr = 0, .sbs = 0, .gc3 = 1},
289 { .lomax = 113750000, .svco = 3, .spd = 3, .scr = 0, .sbs = 1, .gc3 = 1},
290 { .lomax = 134500000, .svco = 0, .spd = 2, .scr = 0, .sbs = 1, .gc3 = 1},
291 { .lomax = 154000000, .svco = 1, .spd = 2, .scr = 0, .sbs = 1, .gc3 = 1},
292 { .lomax = 162500000, .svco = 1, .spd = 2, .scr = 0, .sbs = 1, .gc3 = 1},
293 { .lomax = 183000000, .svco = 2, .spd = 2, .scr = 0, .sbs = 1, .gc3 = 1},
294 { .lomax = 195000000, .svco = 2, .spd = 2, .scr = 0, .sbs = 2, .gc3 = 1},
295 { .lomax = 227500000, .svco = 3, .spd = 2, .scr = 0, .sbs = 2, .gc3 = 1},
296 { .lomax = 269000000, .svco = 0, .spd = 1, .scr = 0, .sbs = 2, .gc3 = 1},
297 { .lomax = 290000000, .svco = 1, .spd = 1, .scr = 0, .sbs = 2, .gc3 = 1},
298 { .lomax = 325000000, .svco = 1, .spd = 1, .scr = 0, .sbs = 3, .gc3 = 1},
299 { .lomax = 390000000, .svco = 2, .spd = 1, .scr = 0, .sbs = 3, .gc3 = 1},
300 { .lomax = 455000000, .svco = 3, .spd = 1, .scr = 0, .sbs = 3, .gc3 = 1},
301 { .lomax = 520000000, .svco = 0, .spd = 0, .scr = 0, .sbs = 3, .gc3 = 1},
302 { .lomax = 538000000, .svco = 0, .spd = 0, .scr = 1, .sbs = 3, .gc3 = 1},
303 { .lomax = 550000000, .svco = 1, .spd = 0, .scr = 0, .sbs = 3, .gc3 = 1},
304 { .lomax = 620000000, .svco = 1, .spd = 0, .scr = 0, .sbs = 4, .gc3 = 0},
305 { .lomax = 650000000, .svco = 1, .spd = 0, .scr = 1, .sbs = 4, .gc3 = 0},
306 { .lomax = 700000000, .svco = 2, .spd = 0, .scr = 0, .sbs = 4, .gc3 = 0},
307 { .lomax = 780000000, .svco = 2, .spd = 0, .scr = 1, .sbs = 4, .gc3 = 0},
308 { .lomax = 820000000, .svco = 3, .spd = 0, .scr = 0, .sbs = 4, .gc3 = 0},
309 { .lomax = 870000000, .svco = 3, .spd = 0, .scr = 1, .sbs = 4, .gc3 = 0},
310 { .lomax = 911000000, .svco = 3, .spd = 0, .scr = 2, .sbs = 4, .gc3 = 0},
311 { .lomax = 0, .svco = 0, .spd = 0, .scr = 0, .sbs = 0, .gc3 = 0}
314 static struct tda827xa_data tda827xa_analog[] = {
315 { .lomax = 56875000, .svco = 3, .spd = 4, .scr = 0, .sbs = 0, .gc3 = 3},
316 { .lomax = 67250000, .svco = 0, .spd = 3, .scr = 0, .sbs = 0, .gc3 = 3},
317 { .lomax = 81250000, .svco = 1, .spd = 3, .scr = 0, .sbs = 0, .gc3 = 3},
318 { .lomax = 97500000, .svco = 2, .spd = 3, .scr = 0, .sbs = 0, .gc3 = 3},
319 { .lomax = 113750000, .svco = 3, .spd = 3, .scr = 0, .sbs = 1, .gc3 = 1},
320 { .lomax = 134500000, .svco = 0, .spd = 2, .scr = 0, .sbs = 1, .gc3 = 1},
321 { .lomax = 154000000, .svco = 1, .spd = 2, .scr = 0, .sbs = 1, .gc3 = 1},
322 { .lomax = 162500000, .svco = 1, .spd = 2, .scr = 0, .sbs = 1, .gc3 = 1},
323 { .lomax = 183000000, .svco = 2, .spd = 2, .scr = 0, .sbs = 1, .gc3 = 1},
324 { .lomax = 195000000, .svco = 2, .spd = 2, .scr = 0, .sbs = 2, .gc3 = 1},
325 { .lomax = 227500000, .svco = 3, .spd = 2, .scr = 0, .sbs = 2, .gc3 = 3},
326 { .lomax = 269000000, .svco = 0, .spd = 1, .scr = 0, .sbs = 2, .gc3 = 3},
327 { .lomax = 325000000, .svco = 1, .spd = 1, .scr = 0, .sbs = 2, .gc3 = 1},
328 { .lomax = 390000000, .svco = 2, .spd = 1, .scr = 0, .sbs = 3, .gc3 = 3},
329 { .lomax = 455000000, .svco = 3, .spd = 1, .scr = 0, .sbs = 3, .gc3 = 3},
330 { .lomax = 520000000, .svco = 0, .spd = 0, .scr = 0, .sbs = 3, .gc3 = 1},
331 { .lomax = 538000000, .svco = 0, .spd = 0, .scr = 1, .sbs = 3, .gc3 = 1},
332 { .lomax = 554000000, .svco = 1, .spd = 0, .scr = 0, .sbs = 3, .gc3 = 1},
333 { .lomax = 620000000, .svco = 1, .spd = 0, .scr = 0, .sbs = 4, .gc3 = 0},
334 { .lomax = 650000000, .svco = 1, .spd = 0, .scr = 1, .sbs = 4, .gc3 = 0},
335 { .lomax = 700000000, .svco = 2, .spd = 0, .scr = 0, .sbs = 4, .gc3 = 0},
336 { .lomax = 780000000, .svco = 2, .spd = 0, .scr = 1, .sbs = 4, .gc3 = 0},
337 { .lomax = 820000000, .svco = 3, .spd = 0, .scr = 0, .sbs = 4, .gc3 = 0},
338 { .lomax = 870000000, .svco = 3, .spd = 0, .scr = 1, .sbs = 4, .gc3 = 0},
339 { .lomax = 911000000, .svco = 3, .spd = 0, .scr = 2, .sbs = 4, .gc3 = 0},
340 { .lomax = 0, .svco = 0, .spd = 0, .scr = 0, .sbs = 0, .gc3 = 0}
343 static int tda827xa_set_params(struct dvb_frontend *fe,
344 struct dvb_frontend_parameters *params)
346 struct tda827x_priv *priv = fe->tuner_priv;
349 struct i2c_msg msg = { .addr = priv->i2c_addr, .flags = 0,
350 .buf = buf, .len = sizeof(buf) };
352 int i, tuner_freq, if_freq;
355 dprintk("%s:\n", __FUNCTION__);
356 if (priv->cfg && priv->cfg->lna_gain)
357 priv->cfg->lna_gain(fe, 1);
360 switch (params->u.ofdm.bandwidth) {
361 case BANDWIDTH_6_MHZ:
364 case BANDWIDTH_7_MHZ:
367 default: /* 8 MHz or Auto */
371 tuner_freq = params->frequency + if_freq;
374 while (tda827xa_dvbt[i].lomax < tuner_freq) {
375 if(tda827xa_dvbt[i + 1].lomax == 0)
380 N = ((tuner_freq + 31250) / 62500) << tda827xa_dvbt[i].spd;
381 buf[0] = 0; // subaddress
386 buf[5] = (tda827xa_dvbt[i].spd << 5) + (tda827xa_dvbt[i].svco << 3) +
387 tda827xa_dvbt[i].sbs;
388 buf[6] = 0x4b + (tda827xa_dvbt[i].gc3 << 4);
394 if (fe->ops.i2c_gate_ctrl)
395 fe->ops.i2c_gate_ctrl(fe, 1);
396 if (i2c_transfer(priv->i2c_adap, &msg, 1) != 1) {
397 printk("%s: could not write to tuner at addr: 0x%02x\n",
398 __FUNCTION__, priv->i2c_addr << 1);
405 buf[4] = 0x59; // lpsel, for 6MHz + 2
407 if (fe->ops.i2c_gate_ctrl)
408 fe->ops.i2c_gate_ctrl(fe, 1);
409 i2c_transfer(priv->i2c_adap, &msg, 1);
414 if (fe->ops.i2c_gate_ctrl)
415 fe->ops.i2c_gate_ctrl(fe, 1);
416 i2c_transfer(priv->i2c_adap, &msg, 1);
419 msg.flags = I2C_M_RD;
420 if (fe->ops.i2c_gate_ctrl)
421 fe->ops.i2c_gate_ctrl(fe, 1);
422 i2c_transfer(priv->i2c_adap, &msg, 1);
426 dprintk("tda8275a AGC2 gain is: %d\n", buf[1]);
428 if (priv->cfg && priv->cfg->lna_gain)
429 priv->cfg->lna_gain(fe, 0);
432 if (fe->ops.i2c_gate_ctrl)
433 fe->ops.i2c_gate_ctrl(fe, 1);
434 i2c_transfer(priv->i2c_adap, &msg, 1);
438 buf[1] = 0x99; // lpsel, for 6MHz + 2
439 if (fe->ops.i2c_gate_ctrl)
440 fe->ops.i2c_gate_ctrl(fe, 1);
441 i2c_transfer(priv->i2c_adap, &msg, 1);
445 if (fe->ops.i2c_gate_ctrl)
446 fe->ops.i2c_gate_ctrl(fe, 1);
447 i2c_transfer(priv->i2c_adap, &msg, 1);
449 /* correct CP value */
451 buf[1] = 0x10 + tda827xa_dvbt[i].scr;
452 if (fe->ops.i2c_gate_ctrl)
453 fe->ops.i2c_gate_ctrl(fe, 1);
454 i2c_transfer(priv->i2c_adap, &msg, 1);
458 buf[1] = 0x39; // lpsel, for 6MHz + 2
459 if (fe->ops.i2c_gate_ctrl)
460 fe->ops.i2c_gate_ctrl(fe, 1);
461 i2c_transfer(priv->i2c_adap, &msg, 1);
466 buf[1] = 0x4f + (tda827xa_dvbt[i].gc3 << 4);
467 if (fe->ops.i2c_gate_ctrl)
468 fe->ops.i2c_gate_ctrl(fe, 1);
469 i2c_transfer(priv->i2c_adap, &msg, 1);
471 priv->frequency = tuner_freq - if_freq; // FIXME
472 priv->bandwidth = (fe->ops.info.type == FE_OFDM) ? params->u.ofdm.bandwidth : 0;
477 static int tda827xa_sleep(struct dvb_frontend *fe)
479 struct tda827x_priv *priv = fe->tuner_priv;
480 static u8 buf[] = { 0x30, 0x90 };
481 struct i2c_msg msg = { .addr = priv->i2c_addr, .flags = 0,
482 .buf = buf, .len = sizeof(buf) };
484 dprintk("%s:\n", __FUNCTION__);
485 if (fe->ops.i2c_gate_ctrl)
486 fe->ops.i2c_gate_ctrl(fe, 1);
488 i2c_transfer(priv->i2c_adap, &msg, 1);
490 if (fe->ops.i2c_gate_ctrl)
491 fe->ops.i2c_gate_ctrl(fe, 0);
493 if (priv->cfg && priv->cfg->sleep)
494 priv->cfg->sleep(fe);
499 /* ------------------------------------------------------------------ */
501 static void tda827xa_lna_gain(struct dvb_frontend *fe, int high,
502 struct analog_parameters *params)
504 struct tda827x_priv *priv = fe->tuner_priv;
505 unsigned char buf[] = {0x22, 0x01};
507 struct i2c_msg msg = { .addr = priv->i2c_addr, .flags = 0,
508 .buf = buf, .len = sizeof(buf) };
510 if (priv->cfg->config) {
512 dprintk("setting LNA to high gain\n");
514 dprintk("setting LNA to low gain\n");
516 switch (*priv->cfg->config) {
519 case 1: /* switch is GPIO 0 of tda8290 */
522 if (params->std & V4L2_STD_MN)
526 if (priv->cfg->tuner_callback)
527 priv->cfg->tuner_callback(priv->i2c_adap->algo_data,
529 buf[1] = high ? 0 : 1;
530 if (*priv->cfg->config == 2)
531 buf[1] = high ? 1 : 0;
532 i2c_transfer(priv->i2c_adap, &msg, 1);
534 case 3: /* switch with GPIO of saa713x */
535 if (priv->cfg->tuner_callback)
536 priv->cfg->tuner_callback(priv->i2c_adap->algo_data,
542 static int tda827xa_set_analog_params(struct dvb_frontend *fe,
543 struct analog_parameters *params)
545 unsigned char tuner_reg[11];
548 struct tda827x_priv *priv = fe->tuner_priv;
549 struct i2c_msg msg = { .addr = priv->i2c_addr, .flags = 0,
550 .buf = tuner_reg, .len = sizeof(tuner_reg) };
551 unsigned int freq = params->frequency;
553 tda827xa_lna_gain(fe, 1, params);
556 if (params->mode == V4L2_TUNER_RADIO)
559 N = freq + priv->cfg->sgIF;
562 while (tda827xa_analog[i].lomax < N * 62500) {
563 if (tda827xa_analog[i + 1].lomax == 0)
568 N = N << tda827xa_analog[i].spd;
571 tuner_reg[1] = (unsigned char)(N>>8);
572 tuner_reg[2] = (unsigned char) N;
575 tuner_reg[5] = (tda827xa_analog[i].spd << 5) +
576 (tda827xa_analog[i].svco << 3) +
577 tda827xa_analog[i].sbs;
578 tuner_reg[6] = 0x8b + (tda827xa_analog[i].gc3 << 4);
582 tuner_reg[10] = 0x00;
584 i2c_transfer(priv->i2c_adap, &msg, 1);
590 tuner_reg[4] = 0x99 + (priv->cfg->tda827x_lpsel << 1);
592 i2c_transfer(priv->i2c_adap, &msg, 1);
597 i2c_transfer(priv->i2c_adap, &msg, 1);
600 tuner_reg[1] = 0x10 + tda827xa_analog[i].scr;
601 i2c_transfer(priv->i2c_adap, &msg, 1);
603 msg.flags = I2C_M_RD;
604 i2c_transfer(priv->i2c_adap, &msg, 1);
607 dprintk("AGC2 gain is: %d\n", tuner_reg[1]);
608 if (tuner_reg[1] < 1)
609 tda827xa_lna_gain(fe, 0, params);
614 i2c_transfer(priv->i2c_adap, &msg, 1);
618 tuner_reg[1] = 0x8f + (tda827xa_analog[i].gc3 << 4);
619 i2c_transfer(priv->i2c_adap, &msg, 1);
623 i2c_transfer(priv->i2c_adap, &msg, 1);
627 i2c_transfer(priv->i2c_adap, &msg, 1);
630 tuner_reg[1] = 0x19 + (priv->cfg->tda827x_lpsel << 1);
631 i2c_transfer(priv->i2c_adap, &msg, 1);
633 priv->frequency = freq * 62500;
638 static void tda827xa_agcf(struct dvb_frontend *fe)
640 struct tda827x_priv *priv = fe->tuner_priv;
641 unsigned char data[] = {0x80, 0x2c};
642 struct i2c_msg msg = {.addr = priv->i2c_addr, .flags = 0,
643 .buf = data, .len = 2};
644 i2c_transfer(priv->i2c_adap, &msg, 1);
647 /* ------------------------------------------------------------------ */
649 static int tda827x_release(struct dvb_frontend *fe)
651 kfree(fe->tuner_priv);
652 fe->tuner_priv = NULL;
656 static int tda827x_get_frequency(struct dvb_frontend *fe, u32 *frequency)
658 struct tda827x_priv *priv = fe->tuner_priv;
659 *frequency = priv->frequency;
663 static int tda827x_get_bandwidth(struct dvb_frontend *fe, u32 *bandwidth)
665 struct tda827x_priv *priv = fe->tuner_priv;
666 *bandwidth = priv->bandwidth;
670 static int tda827x_init(struct dvb_frontend *fe)
672 struct tda827x_priv *priv = fe->tuner_priv;
673 dprintk("%s:\n", __FUNCTION__);
674 if (priv->cfg && priv->cfg->init)
680 static int tda827x_probe_version(struct dvb_frontend *fe);
682 static int tda827x_initial_init(struct dvb_frontend *fe)
685 ret = tda827x_probe_version(fe);
688 return fe->ops.tuner_ops.init(fe);
691 static int tda827x_initial_sleep(struct dvb_frontend *fe)
694 ret = tda827x_probe_version(fe);
697 return fe->ops.tuner_ops.sleep(fe);
700 static struct dvb_tuner_ops tda827xo_tuner_ops = {
702 .name = "Philips TDA827X",
703 .frequency_min = 55000000,
704 .frequency_max = 860000000,
705 .frequency_step = 250000
707 .release = tda827x_release,
708 .init = tda827x_initial_init,
709 .sleep = tda827x_initial_sleep,
710 .set_params = tda827xo_set_params,
711 .set_analog_params = tda827xo_set_analog_params,
712 .get_frequency = tda827x_get_frequency,
713 .get_bandwidth = tda827x_get_bandwidth,
716 static struct dvb_tuner_ops tda827xa_tuner_ops = {
718 .name = "Philips TDA827XA",
719 .frequency_min = 44000000,
720 .frequency_max = 906000000,
721 .frequency_step = 62500
723 .release = tda827x_release,
724 .init = tda827x_init,
725 .sleep = tda827xa_sleep,
726 .set_params = tda827xa_set_params,
727 .set_analog_params = tda827xa_set_analog_params,
728 .get_frequency = tda827x_get_frequency,
729 .get_bandwidth = tda827x_get_bandwidth,
732 static int tda827x_probe_version(struct dvb_frontend *fe)
734 struct tda827x_priv *priv = fe->tuner_priv;
735 struct i2c_msg msg = { .addr = priv->i2c_addr, .flags = I2C_M_RD,
736 .buf = &data, .len = 1 };
737 if (fe->ops.i2c_gate_ctrl)
738 fe->ops.i2c_gate_ctrl(fe, 1);
739 if (i2c_transfer(priv->i2c_adap, &msg, 1) != 1) {
740 printk("%s: could not read from tuner at addr: 0x%02x\n",
741 __FUNCTION__, msg.addr << 1);
744 if ((data & 0x3c) == 0) {
745 dprintk("tda827x tuner found\n");
746 fe->ops.tuner_ops.init = tda827x_init;
747 fe->ops.tuner_ops.sleep = tda827xo_sleep;
748 priv->cfg->agcf = tda827xo_agcf;
750 dprintk("tda827xa tuner found\n");
751 memcpy(&fe->ops.tuner_ops, &tda827xa_tuner_ops, sizeof(struct dvb_tuner_ops));
752 priv->cfg->agcf = tda827xa_agcf;
757 struct dvb_frontend *tda827x_attach(struct dvb_frontend *fe, int addr,
758 struct i2c_adapter *i2c,
759 struct tda827x_config *cfg)
761 struct tda827x_priv *priv = NULL;
763 dprintk("%s:\n", __FUNCTION__);
764 priv = kzalloc(sizeof(struct tda827x_priv), GFP_KERNEL);
768 priv->i2c_addr = addr;
769 priv->i2c_adap = i2c;
771 memcpy(&fe->ops.tuner_ops, &tda827xo_tuner_ops, sizeof(struct dvb_tuner_ops));
772 fe->tuner_priv = priv;
774 dprintk("type set to %s\n", fe->ops.tuner_ops.info.name);
778 EXPORT_SYMBOL(tda827x_attach);
780 MODULE_DESCRIPTION("DVB TDA827x driver");
781 MODULE_AUTHOR("Hartmut Hackmann <hartmut.hackmann@t-online.de>");
782 MODULE_AUTHOR("Michael Krufky <mkrufky@linuxtv.org>");
783 MODULE_LICENSE("GPL");
786 * Overrides for Emacs so that we follow Linus's tabbing style.
787 * ---------------------------------------------------------------------------