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
) {
484 case 1: /* switch is GPIO 0 of tda8290 */
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
== 2)
503 buf
[1] = high
? 1 : 0;
504 tuner_transfer(fe
, &msg
, 1);
506 case 3: /* 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");
912 * Overrides for Emacs so that we follow Linus's tabbing style.
913 * ---------------------------------------------------------------------------