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path: root/drivers/media/video/tda9875.c
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Diffstat (limited to 'drivers/media/video/tda9875.c')
-rw-r--r--drivers/media/video/tda9875.c348
1 files changed, 151 insertions, 197 deletions
diff --git a/drivers/media/video/tda9875.c b/drivers/media/video/tda9875.c
index 792f0b079909..56f0c0eb500f 100644
--- a/drivers/media/video/tda9875.c
+++ b/drivers/media/video/tda9875.c
@@ -25,11 +25,10 @@
25#include <linux/delay.h> 25#include <linux/delay.h>
26#include <linux/errno.h> 26#include <linux/errno.h>
27#include <linux/slab.h> 27#include <linux/slab.h>
28#include <linux/videodev2.h>
29#include <media/v4l2-common.h>
30#include <linux/i2c.h> 28#include <linux/i2c.h>
31#include <linux/init.h> 29#include <linux/videodev2.h>
32 30#include <media/v4l2-device.h>
31#include <media/v4l2-i2c-drv-legacy.h>
33#include <media/i2c-addr.h> 32#include <media/i2c-addr.h>
34 33
35static int debug; /* insmod parameter */ 34static int debug; /* insmod parameter */
@@ -46,13 +45,15 @@ I2C_CLIENT_INSMOD;
46 45
47/* This is a superset of the TDA9875 */ 46/* This is a superset of the TDA9875 */
48struct tda9875 { 47struct tda9875 {
48 struct v4l2_subdev sd;
49 int rvol, lvol; 49 int rvol, lvol;
50 int bass, treble; 50 int bass, treble;
51 struct i2c_client c;
52}; 51};
53 52
54static struct i2c_driver driver; 53static inline struct tda9875 *to_state(struct v4l2_subdev *sd)
55static struct i2c_client client_template; 54{
55 return container_of(sd, struct tda9875, sd);
56}
56 57
57#define dprintk if (debug) printk 58#define dprintk if (debug) printk
58 59
@@ -105,15 +106,16 @@ static struct i2c_client client_template;
105 106
106/* Begin code */ 107/* Begin code */
107 108
108static int tda9875_write(struct i2c_client *client, int subaddr, unsigned char val) 109static int tda9875_write(struct v4l2_subdev *sd, int subaddr, unsigned char val)
109{ 110{
111 struct i2c_client *client = v4l2_get_subdevdata(sd);
110 unsigned char buffer[2]; 112 unsigned char buffer[2];
111 dprintk("In tda9875_write\n"); 113
112 dprintk("Writing %d 0x%x\n", subaddr, val); 114 v4l2_dbg(1, debug, sd, "Writing %d 0x%x\n", subaddr, val);
113 buffer[0] = subaddr; 115 buffer[0] = subaddr;
114 buffer[1] = val; 116 buffer[1] = val;
115 if (2 != i2c_master_send(client,buffer,2)) { 117 if (2 != i2c_master_send(client, buffer, 2)) {
116 printk(KERN_WARNING "tda9875: I/O error, trying (write %d 0x%x)\n", 118 v4l2_warn(sd, "I/O error, trying (write %d 0x%x)\n",
117 subaddr, val); 119 subaddr, val);
118 return -1; 120 return -1;
119 } 121 }
@@ -121,7 +123,7 @@ static int tda9875_write(struct i2c_client *client, int subaddr, unsigned char v
121} 123}
122 124
123 125
124static int i2c_read_register(struct i2c_adapter *adap, int addr, int reg) 126static int i2c_read_register(struct i2c_client *client, int addr, int reg)
125{ 127{
126 unsigned char write[1]; 128 unsigned char write[1];
127 unsigned char read[1]; 129 unsigned char read[1];
@@ -129,150 +131,83 @@ static int i2c_read_register(struct i2c_adapter *adap, int addr, int reg)
129 { addr, 0, 1, write }, 131 { addr, 0, 1, write },
130 { addr, I2C_M_RD, 1, read } 132 { addr, I2C_M_RD, 1, read }
131 }; 133 };
134
132 write[0] = reg; 135 write[0] = reg;
133 136
134 if (2 != i2c_transfer(adap,msgs,2)) { 137 if (2 != i2c_transfer(client->adapter, msgs, 2)) {
135 printk(KERN_WARNING "tda9875: I/O error (read2)\n"); 138 v4l_warn(client, "I/O error (read2)\n");
136 return -1; 139 return -1;
137 } 140 }
138 dprintk("tda9875: chip_read2: reg%d=0x%x\n",reg,read[0]); 141 v4l_dbg(1, debug, client, "chip_read2: reg%d=0x%x\n", reg, read[0]);
139 return read[0]; 142 return read[0];
140} 143}
141 144
142static void tda9875_set(struct i2c_client *client) 145static void tda9875_set(struct v4l2_subdev *sd)
143{ 146{
144 struct tda9875 *tda = i2c_get_clientdata(client); 147 struct tda9875 *tda = to_state(sd);
145 unsigned char a; 148 unsigned char a;
146 149
147 dprintk(KERN_DEBUG "tda9875_set(%04x,%04x,%04x,%04x)\n", 150 v4l2_dbg(1, debug, sd, "tda9875_set(%04x,%04x,%04x,%04x)\n",
148 tda->lvol,tda->rvol,tda->bass,tda->treble); 151 tda->lvol, tda->rvol, tda->bass, tda->treble);
149
150 152
151 a = tda->lvol & 0xff; 153 a = tda->lvol & 0xff;
152 tda9875_write(client, TDA9875_MVL, a); 154 tda9875_write(sd, TDA9875_MVL, a);
153 a =tda->rvol & 0xff; 155 a =tda->rvol & 0xff;
154 tda9875_write(client, TDA9875_MVR, a); 156 tda9875_write(sd, TDA9875_MVR, a);
155 a =tda->bass & 0xff; 157 a =tda->bass & 0xff;
156 tda9875_write(client, TDA9875_MBA, a); 158 tda9875_write(sd, TDA9875_MBA, a);
157 a =tda->treble & 0xff; 159 a =tda->treble & 0xff;
158 tda9875_write(client, TDA9875_MTR, a); 160 tda9875_write(sd, TDA9875_MTR, a);
159} 161}
160 162
161static void do_tda9875_init(struct i2c_client *client) 163static void do_tda9875_init(struct v4l2_subdev *sd)
162{ 164{
163 struct tda9875 *t = i2c_get_clientdata(client); 165 struct tda9875 *t = to_state(sd);
164 dprintk("In tda9875_init\n"); 166
165 tda9875_write(client, TDA9875_CFG, 0xd0 ); /*reg de config 0 (reset)*/ 167 v4l2_dbg(1, debug, sd, "In tda9875_init\n");
166 tda9875_write(client, TDA9875_MSR, 0x03 ); /* Monitor 0b00000XXX*/ 168 tda9875_write(sd, TDA9875_CFG, 0xd0); /*reg de config 0 (reset)*/
167 tda9875_write(client, TDA9875_C1MSB, 0x00 ); /*Car1(FM) MSB XMHz*/ 169 tda9875_write(sd, TDA9875_MSR, 0x03); /* Monitor 0b00000XXX*/
168 tda9875_write(client, TDA9875_C1MIB, 0x00 ); /*Car1(FM) MIB XMHz*/ 170 tda9875_write(sd, TDA9875_C1MSB, 0x00); /*Car1(FM) MSB XMHz*/
169 tda9875_write(client, TDA9875_C1LSB, 0x00 ); /*Car1(FM) LSB XMHz*/ 171 tda9875_write(sd, TDA9875_C1MIB, 0x00); /*Car1(FM) MIB XMHz*/
170 tda9875_write(client, TDA9875_C2MSB, 0x00 ); /*Car2(NICAM) MSB XMHz*/ 172 tda9875_write(sd, TDA9875_C1LSB, 0x00); /*Car1(FM) LSB XMHz*/
171 tda9875_write(client, TDA9875_C2MIB, 0x00 ); /*Car2(NICAM) MIB XMHz*/ 173 tda9875_write(sd, TDA9875_C2MSB, 0x00); /*Car2(NICAM) MSB XMHz*/
172 tda9875_write(client, TDA9875_C2LSB, 0x00 ); /*Car2(NICAM) LSB XMHz*/ 174 tda9875_write(sd, TDA9875_C2MIB, 0x00); /*Car2(NICAM) MIB XMHz*/
173 tda9875_write(client, TDA9875_DCR, 0x00 ); /*Demod config 0x00*/ 175 tda9875_write(sd, TDA9875_C2LSB, 0x00); /*Car2(NICAM) LSB XMHz*/
174 tda9875_write(client, TDA9875_DEEM, 0x44 ); /*DE-Emph 0b0100 0100*/ 176 tda9875_write(sd, TDA9875_DCR, 0x00); /*Demod config 0x00*/
175 tda9875_write(client, TDA9875_FMAT, 0x00 ); /*FM Matrix reg 0x00*/ 177 tda9875_write(sd, TDA9875_DEEM, 0x44); /*DE-Emph 0b0100 0100*/
176 tda9875_write(client, TDA9875_SC1, 0x00 ); /* SCART 1 (SC1)*/ 178 tda9875_write(sd, TDA9875_FMAT, 0x00); /*FM Matrix reg 0x00*/
177 tda9875_write(client, TDA9875_SC2, 0x01 ); /* SCART 2 (sc2)*/ 179 tda9875_write(sd, TDA9875_SC1, 0x00); /* SCART 1 (SC1)*/
178 180 tda9875_write(sd, TDA9875_SC2, 0x01); /* SCART 2 (sc2)*/
179 tda9875_write(client, TDA9875_CH1V, 0x10 ); /* Channel volume 1 mute*/ 181
180 tda9875_write(client, TDA9875_CH2V, 0x10 ); /* Channel volume 2 mute */ 182 tda9875_write(sd, TDA9875_CH1V, 0x10); /* Channel volume 1 mute*/
181 tda9875_write(client, TDA9875_DACOS, 0x02 ); /* sig DAC i/o(in:nicam)*/ 183 tda9875_write(sd, TDA9875_CH2V, 0x10); /* Channel volume 2 mute */
182 tda9875_write(client, TDA9875_ADCIS, 0x6f ); /* sig ADC input(in:mono)*/ 184 tda9875_write(sd, TDA9875_DACOS, 0x02); /* sig DAC i/o(in:nicam)*/
183 tda9875_write(client, TDA9875_LOSR, 0x00 ); /* line out (in:mono)*/ 185 tda9875_write(sd, TDA9875_ADCIS, 0x6f); /* sig ADC input(in:mono)*/
184 tda9875_write(client, TDA9875_AER, 0x00 ); /*06 Effect (AVL+PSEUDO) */ 186 tda9875_write(sd, TDA9875_LOSR, 0x00); /* line out (in:mono)*/
185 tda9875_write(client, TDA9875_MCS, 0x44 ); /* Main ch select (DAC) */ 187 tda9875_write(sd, TDA9875_AER, 0x00); /*06 Effect (AVL+PSEUDO) */
186 tda9875_write(client, TDA9875_MVL, 0x03 ); /* Vol Main left 10dB */ 188 tda9875_write(sd, TDA9875_MCS, 0x44); /* Main ch select (DAC) */
187 tda9875_write(client, TDA9875_MVR, 0x03 ); /* Vol Main right 10dB*/ 189 tda9875_write(sd, TDA9875_MVL, 0x03); /* Vol Main left 10dB */
188 tda9875_write(client, TDA9875_MBA, 0x00 ); /* Main Bass Main 0dB*/ 190 tda9875_write(sd, TDA9875_MVR, 0x03); /* Vol Main right 10dB*/
189 tda9875_write(client, TDA9875_MTR, 0x00 ); /* Main Treble Main 0dB*/ 191 tda9875_write(sd, TDA9875_MBA, 0x00); /* Main Bass Main 0dB*/
190 tda9875_write(client, TDA9875_ACS, 0x44 ); /* Aux chan select (dac)*/ 192 tda9875_write(sd, TDA9875_MTR, 0x00); /* Main Treble Main 0dB*/
191 tda9875_write(client, TDA9875_AVL, 0x00 ); /* Vol Aux left 0dB*/ 193 tda9875_write(sd, TDA9875_ACS, 0x44); /* Aux chan select (dac)*/
192 tda9875_write(client, TDA9875_AVR, 0x00 ); /* Vol Aux right 0dB*/ 194 tda9875_write(sd, TDA9875_AVL, 0x00); /* Vol Aux left 0dB*/
193 tda9875_write(client, TDA9875_ABA, 0x00 ); /* Aux Bass Main 0dB*/ 195 tda9875_write(sd, TDA9875_AVR, 0x00); /* Vol Aux right 0dB*/
194 tda9875_write(client, TDA9875_ATR, 0x00 ); /* Aux Aigus Main 0dB*/ 196 tda9875_write(sd, TDA9875_ABA, 0x00); /* Aux Bass Main 0dB*/
195 197 tda9875_write(sd, TDA9875_ATR, 0x00); /* Aux Aigus Main 0dB*/
196 tda9875_write(client, TDA9875_MUT, 0xcc ); /* General mute */ 198
197 199 tda9875_write(sd, TDA9875_MUT, 0xcc); /* General mute */
198 t->lvol=t->rvol =0; /* 0dB */ 200
199 t->bass=0; /* 0dB */ 201 t->lvol = t->rvol = 0; /* 0dB */
200 t->treble=0; /* 0dB */ 202 t->bass = 0; /* 0dB */
201 tda9875_set(client); 203 t->treble = 0; /* 0dB */
202 204 tda9875_set(sd);
203} 205}
204 206
205 207
206/* *********************** * 208static int tda9875_g_ctrl(struct v4l2_subdev *sd, struct v4l2_control *ctrl)
207 * i2c interface functions *
208 * *********************** */
209
210static int tda9875_checkit(struct i2c_adapter *adap, int addr)
211{
212 int dic,rev;
213
214 dic=i2c_read_register(adap,addr,254);
215 rev=i2c_read_register(adap,addr,255);
216
217 if(dic==0 || dic==2) { // tda9875 and tda9875A
218 printk("tda9875: TDA9875%s Rev.%d detected at 0x%x\n",
219 dic==0?"":"A", rev,addr<<1);
220 return 1;
221 }
222 printk("tda9875: no such chip at 0x%x (dic=0x%x rev=0x%x)\n",addr<<1,dic,rev);
223 return(0);
224}
225
226static int tda9875_attach(struct i2c_adapter *adap, int addr, int kind)
227{ 209{
228 struct tda9875 *t; 210 struct tda9875 *t = to_state(sd);
229 struct i2c_client *client;
230 dprintk("In tda9875_attach\n");
231
232 t = kzalloc(sizeof *t,GFP_KERNEL);
233 if (!t)
234 return -ENOMEM;
235
236 client = &t->c;
237 memcpy(client,&client_template,sizeof(struct i2c_client));
238 client->adapter = adap;
239 client->addr = addr;
240 i2c_set_clientdata(client, t);
241
242 if(!tda9875_checkit(adap,addr)) {
243 kfree(t);
244 return 1;
245 }
246
247 do_tda9875_init(client);
248 printk(KERN_INFO "tda9875: init\n");
249
250 i2c_attach_client(client);
251 return 0;
252}
253
254static int tda9875_probe(struct i2c_adapter *adap)
255{
256 if (adap->class & I2C_CLASS_TV_ANALOG)
257 return i2c_probe(adap, &addr_data, tda9875_attach);
258 return 0;
259}
260
261static int tda9875_detach(struct i2c_client *client)
262{
263 struct tda9875 *t = i2c_get_clientdata(client);
264
265 do_tda9875_init(client);
266 i2c_detach_client(client);
267
268 kfree(t);
269 return 0;
270}
271
272static int tda9875_get_ctrl(struct i2c_client *client,
273 struct v4l2_control *ctrl)
274{
275 struct tda9875 *t = i2c_get_clientdata(client);
276 211
277 switch (ctrl->id) { 212 switch (ctrl->id) {
278 case V4L2_CID_AUDIO_VOLUME: 213 case V4L2_CID_AUDIO_VOLUME:
@@ -304,10 +239,9 @@ static int tda9875_get_ctrl(struct i2c_client *client,
304 return -EINVAL; 239 return -EINVAL;
305} 240}
306 241
307static int tda9875_set_ctrl(struct i2c_client *client, 242static int tda9875_s_ctrl(struct v4l2_subdev *sd, struct v4l2_control *ctrl)
308 struct v4l2_control *ctrl)
309{ 243{
310 struct tda9875 *t = i2c_get_clientdata(client); 244 struct tda9875 *t = to_state(sd);
311 int chvol=0, volume, balance, left, right; 245 int chvol=0, volume, balance, left, right;
312 246
313 switch (ctrl->id) { 247 switch (ctrl->id) {
@@ -371,85 +305,105 @@ static int tda9875_set_ctrl(struct i2c_client *client,
371 t->rvol = -84 & 0xff; 305 t->rvol = -84 & 0xff;
372 } 306 }
373 307
374//printk("tda9875 bal:%04x vol:%04x bass:%04x treble:%04x\n",va->balance,va->volume,va->bass,va->treble); 308 tda9875_set(sd);
375
376 tda9875_set(client);
377
378 return 0; 309 return 0;
379} 310}
380 311
381 312static int tda9875_queryctrl(struct v4l2_subdev *sd, struct v4l2_queryctrl *qc)
382static int tda9875_command(struct i2c_client *client,
383 unsigned int cmd, void *arg)
384{ 313{
385 dprintk("In tda9875_command...\n"); 314 switch (qc->id) {
386 315 case V4L2_CID_AUDIO_VOLUME:
387 switch (cmd) { 316 case V4L2_CID_AUDIO_BASS:
388 /* --- v4l ioctls --- */ 317 case V4L2_CID_AUDIO_TREBLE:
389 /* take care: bttv does userspace copying, we'll get a
390 kernel pointer here... */
391 case VIDIOC_QUERYCTRL:
392 {
393 struct v4l2_queryctrl *qc = arg;
394
395 switch (qc->id) {
396 case V4L2_CID_AUDIO_VOLUME:
397 case V4L2_CID_AUDIO_BASS:
398 case V4L2_CID_AUDIO_TREBLE:
399 default:
400 return -EINVAL;
401 }
402 return v4l2_ctrl_query_fill_std(qc); 318 return v4l2_ctrl_query_fill_std(qc);
403 } 319 }
404 case VIDIOC_S_CTRL: 320 return -EINVAL;
405 return tda9875_set_ctrl(client, arg); 321}
406 322
407 case VIDIOC_G_CTRL: 323static int tda9875_command(struct i2c_client *client, unsigned cmd, void *arg)
408 return tda9875_get_ctrl(client, arg); 324{
325 return v4l2_subdev_command(i2c_get_clientdata(client), cmd, arg);
326}
409 327
410 default: /* Not VIDEOCGAUDIO or VIDEOCSAUDIO */ 328/* ----------------------------------------------------------------------- */
411 329
412 /* nothing */ 330static const struct v4l2_subdev_core_ops tda9875_core_ops = {
413 dprintk("Default\n"); 331 .queryctrl = tda9875_queryctrl,
332 .g_ctrl = tda9875_g_ctrl,
333 .s_ctrl = tda9875_s_ctrl,
334};
414 335
415 } /* end of (cmd) switch */ 336static const struct v4l2_subdev_ops tda9875_ops = {
337 .core = &tda9875_core_ops,
338};
416 339
417 return 0; 340/* ----------------------------------------------------------------------- */
418}
419 341
420 342
421static struct i2c_driver driver = { 343/* *********************** *
422 .driver = { 344 * i2c interface functions *
423 .name = "tda9875", 345 * *********************** */
424 },
425 .id = I2C_DRIVERID_TDA9875,
426 .attach_adapter = tda9875_probe,
427 .detach_client = tda9875_detach,
428 .command = tda9875_command,
429};
430 346
431static struct i2c_client client_template = 347static int tda9875_checkit(struct i2c_client *client, int addr)
432{ 348{
433 .name = "tda9875", 349 int dic, rev;
434 .driver = &driver,
435};
436 350
437static int __init tda9875_init(void) 351 dic = i2c_read_register(client, addr, 254);
438{ 352 rev = i2c_read_register(client, addr, 255);
439 return i2c_add_driver(&driver); 353
354 if (dic == 0 || dic == 2) { /* tda9875 and tda9875A */
355 v4l_info(client, "tda9875%s rev. %d detected at 0x%02x\n",
356 dic == 0 ? "" : "A", rev, addr << 1);
357 return 1;
358 }
359 v4l_info(client, "no such chip at 0x%02x (dic=0x%x rev=0x%x)\n",
360 addr << 1, dic, rev);
361 return 0;
440} 362}
441 363
442static void __exit tda9875_fini(void) 364static int tda9875_probe(struct i2c_client *client,
365 const struct i2c_device_id *id)
443{ 366{
444 i2c_del_driver(&driver); 367 struct tda9875 *t;
368 struct v4l2_subdev *sd;
369
370 v4l_info(client, "chip found @ 0x%02x (%s)\n",
371 client->addr << 1, client->adapter->name);
372
373 if (!tda9875_checkit(client, client->addr))
374 return -ENODEV;
375
376 t = kzalloc(sizeof(*t), GFP_KERNEL);
377 if (!t)
378 return -ENOMEM;
379 sd = &t->sd;
380 v4l2_i2c_subdev_init(sd, client, &tda9875_ops);
381
382 do_tda9875_init(sd);
383 return 0;
445} 384}
446 385
447module_init(tda9875_init); 386static int tda9875_remove(struct i2c_client *client)
448module_exit(tda9875_fini); 387{
388 struct v4l2_subdev *sd = i2c_get_clientdata(client);
449 389
450/* 390 do_tda9875_init(sd);
451 * Local variables: 391 v4l2_device_unregister_subdev(sd);
452 * c-basic-offset: 8 392 kfree(to_state(sd));
453 * End: 393 return 0;
454 */ 394}
455 395
396static const struct i2c_device_id tda9875_id[] = {
397 { "tda9875", 0 },
398 { }
399};
400MODULE_DEVICE_TABLE(i2c, tda9875_id);
401
402static struct v4l2_i2c_driver_data v4l2_i2c_data = {
403 .name = "tda9875",
404 .driverid = I2C_DRIVERID_TDA9875,
405 .command = tda9875_command,
406 .probe = tda9875_probe,
407 .remove = tda9875_remove,
408 .id_table = tda9875_id,
409};
generated by cgit v1.2.2 (git 2.25.0) at 2024-12-19 20:46:42 -0500