Commit | Line | Data |
---|---|---|
1da177e4 LT |
1 | /* |
2 | * For the TDA9875 chip | |
3 | * (The TDA9875 is used on the Diamond DTV2000 french version | |
4 | * Other cards probably use these chips as well.) | |
5 | * This driver will not complain if used with any | |
6 | * other i2c device with the same address. | |
7 | * | |
8 | * Copyright (c) 2000 Guillaume Delvit based on Gerd Knorr source and | |
9 | * Eric Sandeen | |
5eba3571 | 10 | * Copyright (c) 2006 Mauro Carvalho Chehab <mchehab@infradead.org> |
1da177e4 LT |
11 | * This code is placed under the terms of the GNU General Public License |
12 | * Based on tda9855.c by Steve VanDeBogart (vandebo@uclink.berkeley.edu) | |
13 | * Which was based on tda8425.c by Greg Alexander (c) 1998 | |
14 | * | |
15 | * OPTIONS: | |
16 | * debug - set to 1 if you'd like to see debug messages | |
17 | * | |
18 | * Revision: 0.1 - original version | |
19 | */ | |
20 | ||
21 | #include <linux/module.h> | |
22 | #include <linux/kernel.h> | |
1da177e4 LT |
23 | #include <linux/string.h> |
24 | #include <linux/timer.h> | |
25 | #include <linux/delay.h> | |
26 | #include <linux/errno.h> | |
27 | #include <linux/slab.h> | |
33b687cf | 28 | #include <linux/videodev2.h> |
5e87efa3 | 29 | #include <media/v4l2-common.h> |
1da177e4 | 30 | #include <linux/i2c.h> |
1da177e4 LT |
31 | #include <linux/init.h> |
32 | ||
fa3fcceb MCC |
33 | #include <media/i2c-addr.h> |
34 | ||
1da177e4 LT |
35 | static int debug; /* insmod parameter */ |
36 | module_param(debug, int, S_IRUGO | S_IWUSR); | |
37 | MODULE_LICENSE("GPL"); | |
38 | ||
1da177e4 LT |
39 | /* Addresses to scan */ |
40 | static unsigned short normal_i2c[] = { | |
09df1c16 | 41 | I2C_ADDR_TDA9875 >> 1, |
1da177e4 LT |
42 | I2C_CLIENT_END |
43 | }; | |
f87086e3 | 44 | |
1da177e4 LT |
45 | I2C_CLIENT_INSMOD; |
46 | ||
47 | /* This is a superset of the TDA9875 */ | |
48 | struct tda9875 { | |
1da177e4 LT |
49 | int rvol, lvol; |
50 | int bass, treble; | |
51 | struct i2c_client c; | |
52 | }; | |
53 | ||
54 | static struct i2c_driver driver; | |
55 | static struct i2c_client client_template; | |
56 | ||
57 | #define dprintk if (debug) printk | |
58 | ||
59 | /* The TDA9875 is made by Philips Semiconductor | |
60 | * http://www.semiconductors.philips.com | |
61 | * TDA9875: I2C-bus controlled DSP audio processor, FM demodulator | |
62 | * | |
63 | */ | |
64 | ||
65 | /* subaddresses for TDA9875 */ | |
66 | #define TDA9875_MUT 0x12 /*General mute (value --> 0b11001100*/ | |
67 | #define TDA9875_CFG 0x01 /* Config register (value --> 0b00000000 */ | |
68 | #define TDA9875_DACOS 0x13 /*DAC i/o select (ADC) 0b0000100*/ | |
69 | #define TDA9875_LOSR 0x16 /*Line output select regirter 0b0100 0001*/ | |
70 | ||
71 | #define TDA9875_CH1V 0x0c /*Channel 1 volume (mute)*/ | |
72 | #define TDA9875_CH2V 0x0d /*Channel 2 volume (mute)*/ | |
73 | #define TDA9875_SC1 0x14 /*SCART 1 in (mono)*/ | |
74 | #define TDA9875_SC2 0x15 /*SCART 2 in (mono)*/ | |
75 | ||
76 | #define TDA9875_ADCIS 0x17 /*ADC input select (mono) 0b0110 000*/ | |
77 | #define TDA9875_AER 0x19 /*Audio effect (AVL+Pseudo) 0b0000 0110*/ | |
78 | #define TDA9875_MCS 0x18 /*Main channel select (DAC) 0b0000100*/ | |
79 | #define TDA9875_MVL 0x1a /* Main volume gauche */ | |
80 | #define TDA9875_MVR 0x1b /* Main volume droite */ | |
81 | #define TDA9875_MBA 0x1d /* Main Basse */ | |
82 | #define TDA9875_MTR 0x1e /* Main treble */ | |
83 | #define TDA9875_ACS 0x1f /* Auxilary channel select (FM) 0b0000000*/ | |
84 | #define TDA9875_AVL 0x20 /* Auxilary volume gauche */ | |
85 | #define TDA9875_AVR 0x21 /* Auxilary volume droite */ | |
86 | #define TDA9875_ABA 0x22 /* Auxilary Basse */ | |
87 | #define TDA9875_ATR 0x23 /* Auxilary treble */ | |
88 | ||
89 | #define TDA9875_MSR 0x02 /* Monitor select register */ | |
90 | #define TDA9875_C1MSB 0x03 /* Carrier 1 (FM) frequency register MSB */ | |
91 | #define TDA9875_C1MIB 0x04 /* Carrier 1 (FM) frequency register (16-8]b */ | |
92 | #define TDA9875_C1LSB 0x05 /* Carrier 1 (FM) frequency register LSB */ | |
93 | #define TDA9875_C2MSB 0x06 /* Carrier 2 (nicam) frequency register MSB */ | |
94 | #define TDA9875_C2MIB 0x07 /* Carrier 2 (nicam) frequency register (16-8]b */ | |
95 | #define TDA9875_C2LSB 0x08 /* Carrier 2 (nicam) frequency register LSB */ | |
96 | #define TDA9875_DCR 0x09 /* Demodulateur configuration regirter*/ | |
97 | #define TDA9875_DEEM 0x0a /* FM de-emphasis regirter*/ | |
98 | #define TDA9875_FMAT 0x0b /* FM Matrix regirter*/ | |
99 | ||
100 | /* values */ | |
101 | #define TDA9875_MUTE_ON 0xff /* general mute */ | |
102 | #define TDA9875_MUTE_OFF 0xcc /* general no mute */ | |
103 | ||
104 | ||
105 | ||
106 | /* Begin code */ | |
107 | ||
108 | static int tda9875_write(struct i2c_client *client, int subaddr, unsigned char val) | |
109 | { | |
110 | unsigned char buffer[2]; | |
111 | dprintk("In tda9875_write\n"); | |
112 | dprintk("Writing %d 0x%x\n", subaddr, val); | |
113 | buffer[0] = subaddr; | |
114 | buffer[1] = val; | |
115 | if (2 != i2c_master_send(client,buffer,2)) { | |
116 | printk(KERN_WARNING "tda9875: I/O error, trying (write %d 0x%x)\n", | |
117 | subaddr, val); | |
118 | return -1; | |
119 | } | |
120 | return 0; | |
121 | } | |
122 | ||
1da177e4 LT |
123 | |
124 | static int i2c_read_register(struct i2c_adapter *adap, int addr, int reg) | |
125 | { | |
4ac97914 MCC |
126 | unsigned char write[1]; |
127 | unsigned char read[1]; | |
128 | struct i2c_msg msgs[2] = { | |
129 | { addr, 0, 1, write }, | |
130 | { addr, I2C_M_RD, 1, read } | |
131 | }; | |
132 | write[0] = reg; | |
133 | ||
134 | if (2 != i2c_transfer(adap,msgs,2)) { | |
135 | printk(KERN_WARNING "tda9875: I/O error (read2)\n"); | |
136 | return -1; | |
137 | } | |
138 | dprintk("tda9875: chip_read2: reg%d=0x%x\n",reg,read[0]); | |
139 | return read[0]; | |
1da177e4 LT |
140 | } |
141 | ||
142 | static void tda9875_set(struct i2c_client *client) | |
143 | { | |
144 | struct tda9875 *tda = i2c_get_clientdata(client); | |
145 | unsigned char a; | |
146 | ||
147 | dprintk(KERN_DEBUG "tda9875_set(%04x,%04x,%04x,%04x)\n", | |
148 | tda->lvol,tda->rvol,tda->bass,tda->treble); | |
149 | ||
150 | ||
151 | a = tda->lvol & 0xff; | |
152 | tda9875_write(client, TDA9875_MVL, a); | |
153 | a =tda->rvol & 0xff; | |
154 | tda9875_write(client, TDA9875_MVR, a); | |
155 | a =tda->bass & 0xff; | |
156 | tda9875_write(client, TDA9875_MBA, a); | |
157 | a =tda->treble & 0xff; | |
158 | tda9875_write(client, TDA9875_MTR, a); | |
159 | } | |
160 | ||
161 | static void do_tda9875_init(struct i2c_client *client) | |
162 | { | |
163 | struct tda9875 *t = i2c_get_clientdata(client); | |
164 | dprintk("In tda9875_init\n"); | |
165 | tda9875_write(client, TDA9875_CFG, 0xd0 ); /*reg de config 0 (reset)*/ | |
657de3cd | 166 | tda9875_write(client, TDA9875_MSR, 0x03 ); /* Monitor 0b00000XXX*/ |
1da177e4 LT |
167 | tda9875_write(client, TDA9875_C1MSB, 0x00 ); /*Car1(FM) MSB XMHz*/ |
168 | tda9875_write(client, TDA9875_C1MIB, 0x00 ); /*Car1(FM) MIB XMHz*/ | |
169 | tda9875_write(client, TDA9875_C1LSB, 0x00 ); /*Car1(FM) LSB XMHz*/ | |
170 | tda9875_write(client, TDA9875_C2MSB, 0x00 ); /*Car2(NICAM) MSB XMHz*/ | |
171 | tda9875_write(client, TDA9875_C2MIB, 0x00 ); /*Car2(NICAM) MIB XMHz*/ | |
172 | tda9875_write(client, TDA9875_C2LSB, 0x00 ); /*Car2(NICAM) LSB XMHz*/ | |
173 | tda9875_write(client, TDA9875_DCR, 0x00 ); /*Demod config 0x00*/ | |
174 | tda9875_write(client, TDA9875_DEEM, 0x44 ); /*DE-Emph 0b0100 0100*/ | |
175 | tda9875_write(client, TDA9875_FMAT, 0x00 ); /*FM Matrix reg 0x00*/ | |
176 | tda9875_write(client, TDA9875_SC1, 0x00 ); /* SCART 1 (SC1)*/ | |
177 | tda9875_write(client, TDA9875_SC2, 0x01 ); /* SCART 2 (sc2)*/ | |
178 | ||
179 | tda9875_write(client, TDA9875_CH1V, 0x10 ); /* Channel volume 1 mute*/ | |
180 | tda9875_write(client, TDA9875_CH2V, 0x10 ); /* Channel volume 2 mute */ | |
181 | tda9875_write(client, TDA9875_DACOS, 0x02 ); /* sig DAC i/o(in:nicam)*/ | |
182 | tda9875_write(client, TDA9875_ADCIS, 0x6f ); /* sig ADC input(in:mono)*/ | |
183 | tda9875_write(client, TDA9875_LOSR, 0x00 ); /* line out (in:mono)*/ | |
4ac97914 | 184 | tda9875_write(client, TDA9875_AER, 0x00 ); /*06 Effect (AVL+PSEUDO) */ |
1da177e4 LT |
185 | tda9875_write(client, TDA9875_MCS, 0x44 ); /* Main ch select (DAC) */ |
186 | tda9875_write(client, TDA9875_MVL, 0x03 ); /* Vol Main left 10dB */ | |
187 | tda9875_write(client, TDA9875_MVR, 0x03 ); /* Vol Main right 10dB*/ | |
188 | tda9875_write(client, TDA9875_MBA, 0x00 ); /* Main Bass Main 0dB*/ | |
189 | tda9875_write(client, TDA9875_MTR, 0x00 ); /* Main Treble Main 0dB*/ | |
190 | tda9875_write(client, TDA9875_ACS, 0x44 ); /* Aux chan select (dac)*/ | |
191 | tda9875_write(client, TDA9875_AVL, 0x00 ); /* Vol Aux left 0dB*/ | |
192 | tda9875_write(client, TDA9875_AVR, 0x00 ); /* Vol Aux right 0dB*/ | |
193 | tda9875_write(client, TDA9875_ABA, 0x00 ); /* Aux Bass Main 0dB*/ | |
194 | tda9875_write(client, TDA9875_ATR, 0x00 ); /* Aux Aigus Main 0dB*/ | |
195 | ||
196 | tda9875_write(client, TDA9875_MUT, 0xcc ); /* General mute */ | |
197 | ||
1da177e4 | 198 | t->lvol=t->rvol =0; /* 0dB */ |
4ac97914 | 199 | t->bass=0; /* 0dB */ |
1da177e4 LT |
200 | t->treble=0; /* 0dB */ |
201 | tda9875_set(client); | |
202 | ||
203 | } | |
204 | ||
205 | ||
206 | /* *********************** * | |
207 | * i2c interface functions * | |
208 | * *********************** */ | |
209 | ||
210 | static 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 | ||
226 | static int tda9875_attach(struct i2c_adapter *adap, int addr, int kind) | |
227 | { | |
228 | struct tda9875 *t; | |
229 | struct i2c_client *client; | |
230 | dprintk("In tda9875_attach\n"); | |
231 | ||
7408187d | 232 | t = kzalloc(sizeof *t,GFP_KERNEL); |
1da177e4 LT |
233 | if (!t) |
234 | return -ENOMEM; | |
1da177e4 LT |
235 | |
236 | client = &t->c; | |
4ac97914 MCC |
237 | memcpy(client,&client_template,sizeof(struct i2c_client)); |
238 | client->adapter = adap; | |
239 | client->addr = addr; | |
1da177e4 LT |
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 | ||
254 | static int tda9875_probe(struct i2c_adapter *adap) | |
255 | { | |
1da177e4 LT |
256 | if (adap->class & I2C_CLASS_TV_ANALOG) |
257 | return i2c_probe(adap, &addr_data, tda9875_attach); | |
1da177e4 LT |
258 | return 0; |
259 | } | |
260 | ||
261 | static 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 | ||
5eba3571 MCC |
272 | static int tda9875_get_ctrl(struct i2c_client *client, |
273 | struct v4l2_control *ctrl) | |
1da177e4 LT |
274 | { |
275 | struct tda9875 *t = i2c_get_clientdata(client); | |
276 | ||
5eba3571 MCC |
277 | switch (ctrl->id) { |
278 | case V4L2_CID_AUDIO_VOLUME: | |
279 | { | |
280 | int left = (t->lvol+84)*606; | |
281 | int right = (t->rvol+84)*606; | |
1da177e4 | 282 | |
5eba3571 MCC |
283 | ctrl->value=max(left,right); |
284 | return 0; | |
285 | } | |
286 | case V4L2_CID_AUDIO_BALANCE: | |
1da177e4 | 287 | { |
5eba3571 MCC |
288 | int left = (t->lvol+84)*606; |
289 | int right = (t->rvol+84)*606; | |
290 | int volume = max(left,right); | |
291 | int balance = (32768*min(left,right))/ | |
292 | (volume ? volume : 1); | |
293 | ctrl->value=(left<right)? | |
294 | (65535-balance) : balance; | |
295 | return 0; | |
296 | } | |
297 | case V4L2_CID_AUDIO_BASS: | |
298 | ctrl->value = (t->bass+12)*2427; /* min -12 max +15 */ | |
299 | return 0; | |
300 | case V4L2_CID_AUDIO_TREBLE: | |
301 | ctrl->value = (t->treble+12)*2730;/* min -12 max +12 */ | |
302 | return 0; | |
303 | } | |
304 | return -EINVAL; | |
305 | } | |
1da177e4 | 306 | |
5eba3571 MCC |
307 | static int tda9875_set_ctrl(struct i2c_client *client, |
308 | struct v4l2_control *ctrl) | |
309 | { | |
310 | struct tda9875 *t = i2c_get_clientdata(client); | |
311 | int chvol=0, volume, balance, left, right; | |
1da177e4 | 312 | |
5eba3571 MCC |
313 | switch (ctrl->id) { |
314 | case V4L2_CID_AUDIO_VOLUME: | |
315 | left = (t->lvol+84)*606; | |
316 | right = (t->rvol+84)*606; | |
317 | ||
318 | volume = max(left,right); | |
319 | balance = (32768*min(left,right))/ | |
320 | (volume ? volume : 1); | |
321 | balance =(left<right)? | |
322 | (65535-balance) : balance; | |
323 | ||
324 | volume = ctrl->value; | |
1da177e4 | 325 | |
5eba3571 MCC |
326 | chvol=1; |
327 | break; | |
328 | case V4L2_CID_AUDIO_BALANCE: | |
1da177e4 LT |
329 | left = (t->lvol+84)*606; |
330 | right = (t->rvol+84)*606; | |
5eba3571 MCC |
331 | |
332 | volume=max(left,right); | |
333 | ||
334 | balance = ctrl->value; | |
335 | ||
336 | chvol=1; | |
337 | break; | |
338 | case V4L2_CID_AUDIO_BASS: | |
339 | t->bass = ((ctrl->value/2400)-12) & 0xff; | |
340 | if (t->bass > 15) | |
341 | t->bass = 15; | |
342 | if (t->bass < -12) | |
343 | t->bass = -12 & 0xff; | |
344 | break; | |
345 | case V4L2_CID_AUDIO_TREBLE: | |
346 | t->treble = ((ctrl->value/2700)-12) & 0xff; | |
347 | if (t->treble > 12) | |
348 | t->treble = 12; | |
349 | if (t->treble < -12) | |
350 | t->treble = -12 & 0xff; | |
351 | break; | |
352 | default: | |
353 | return -EINVAL; | |
1da177e4 LT |
354 | } |
355 | ||
5eba3571 MCC |
356 | if (chvol) { |
357 | left = (min(65536 - balance,32768) * | |
358 | volume) / 32768; | |
359 | right = (min(balance,32768) * | |
360 | volume) / 32768; | |
1da177e4 LT |
361 | t->lvol = ((left/606)-84) & 0xff; |
362 | if (t->lvol > 24) | |
5eba3571 | 363 | t->lvol = 24; |
1da177e4 | 364 | if (t->lvol < -84) |
5eba3571 | 365 | t->lvol = -84 & 0xff; |
1da177e4 LT |
366 | |
367 | t->rvol = ((right/606)-84) & 0xff; | |
368 | if (t->rvol > 24) | |
5eba3571 | 369 | t->rvol = 24; |
1da177e4 | 370 | if (t->rvol < -84) |
5eba3571 MCC |
371 | t->rvol = -84 & 0xff; |
372 | } | |
1da177e4 | 373 | |
5eba3571 | 374 | //printk("tda9875 bal:%04x vol:%04x bass:%04x treble:%04x\n",va->balance,va->volume,va->bass,va->treble); |
1da177e4 | 375 | |
5eba3571 | 376 | tda9875_set(client); |
1da177e4 | 377 | |
5eba3571 MCC |
378 | return 0; |
379 | } | |
1da177e4 LT |
380 | |
381 | ||
5eba3571 MCC |
382 | static int tda9875_command(struct i2c_client *client, |
383 | unsigned int cmd, void *arg) | |
384 | { | |
385 | dprintk("In tda9875_command...\n"); | |
1da177e4 | 386 | |
5eba3571 MCC |
387 | switch (cmd) { |
388 | /* --- v4l ioctls --- */ | |
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); | |
403 | } | |
404 | case VIDIOC_S_CTRL: | |
405 | return tda9875_set_ctrl(client, arg); | |
1da177e4 | 406 | |
5eba3571 MCC |
407 | case VIDIOC_G_CTRL: |
408 | return tda9875_get_ctrl(client, arg); | |
1da177e4 LT |
409 | |
410 | default: /* Not VIDEOCGAUDIO or VIDEOCSAUDIO */ | |
411 | ||
412 | /* nothing */ | |
413 | dprintk("Default\n"); | |
414 | ||
415 | } /* end of (cmd) switch */ | |
416 | ||
417 | return 0; | |
418 | } | |
419 | ||
420 | ||
421 | static struct i2c_driver driver = { | |
604f28e2 | 422 | .driver = { |
cab462f7 | 423 | .name = "tda9875", |
604f28e2 | 424 | }, |
4ac97914 | 425 | .id = I2C_DRIVERID_TDA9875, |
1da177e4 | 426 | .attach_adapter = tda9875_probe, |
4ac97914 MCC |
427 | .detach_client = tda9875_detach, |
428 | .command = tda9875_command, | |
1da177e4 LT |
429 | }; |
430 | ||
431 | static struct i2c_client client_template = | |
432 | { | |
4ac97914 MCC |
433 | .name = "tda9875", |
434 | .driver = &driver, | |
1da177e4 LT |
435 | }; |
436 | ||
437 | static int __init tda9875_init(void) | |
438 | { | |
439 | return i2c_add_driver(&driver); | |
440 | } | |
441 | ||
442 | static void __exit tda9875_fini(void) | |
443 | { | |
444 | i2c_del_driver(&driver); | |
445 | } | |
446 | ||
447 | module_init(tda9875_init); | |
448 | module_exit(tda9875_fini); | |
449 | ||
450 | /* | |
451 | * Local variables: | |
452 | * c-basic-offset: 8 | |
453 | * End: | |
454 | */ | |
455 |