Commit | Line | Data |
---|---|---|
1da177e4 LT |
1 | /* |
2 | * For the STS-Thompson TDA7432 audio processor chip | |
3 | * | |
4 | * Handles audio functions: volume, balance, tone, loudness | |
5 | * This driver will not complain if used with any | |
6 | * other i2c device with the same address. | |
7 | * | |
8 | * Muting and tone control by Jonathan Isom <jisom@ematic.com> | |
9 | * | |
10 | * Copyright (c) 2000 Eric Sandeen <eric_sandeen@bigfoot.com> | |
7a00d45c | 11 | * Copyright (c) 2006 Mauro Carvalho Chehab <mchehab@infradead.org> |
1da177e4 LT |
12 | * This code is placed under the terms of the GNU General Public License |
13 | * Based on tda9855.c by Steve VanDeBogart (vandebo@uclink.berkeley.edu) | |
14 | * Which was based on tda8425.c by Greg Alexander (c) 1998 | |
15 | * | |
16 | * OPTIONS: | |
17 | * debug - set to 1 if you'd like to see debug messages | |
18 | * set to 2 if you'd like to be inundated with debug messages | |
19 | * | |
20 | * loudness - set between 0 and 15 for varying degrees of loudness effect | |
21 | * | |
22 | * maxvol - set maximium volume to +20db (1), default is 0db(0) | |
1da177e4 LT |
23 | */ |
24 | ||
25 | #include <linux/module.h> | |
26 | #include <linux/init.h> | |
27 | #include <linux/kernel.h> | |
1da177e4 LT |
28 | #include <linux/string.h> |
29 | #include <linux/timer.h> | |
30 | #include <linux/delay.h> | |
31 | #include <linux/errno.h> | |
32 | #include <linux/slab.h> | |
33b687cf | 33 | #include <linux/videodev2.h> |
1da177e4 | 34 | #include <linux/i2c.h> |
1da177e4 | 35 | |
d531305a | 36 | #include <media/v4l2-device.h> |
35ea11ff | 37 | #include <media/v4l2-ioctl.h> |
fa3fcceb | 38 | #include <media/i2c-addr.h> |
1da177e4 LT |
39 | |
40 | #ifndef VIDEO_AUDIO_BALANCE | |
41 | # define VIDEO_AUDIO_BALANCE 32 | |
42 | #endif | |
43 | ||
44 | MODULE_AUTHOR("Eric Sandeen <eric_sandeen@bigfoot.com>"); | |
45 | MODULE_DESCRIPTION("bttv driver for the tda7432 audio processor chip"); | |
46 | MODULE_LICENSE("GPL"); | |
47 | ||
48 | static int maxvol; | |
49 | static int loudness; /* disable loudness by default */ | |
50 | static int debug; /* insmod parameter */ | |
51 | module_param(debug, int, S_IRUGO | S_IWUSR); | |
52 | module_param(loudness, int, S_IRUGO); | |
53 | MODULE_PARM_DESC(maxvol,"Set maximium volume to +20db (0), default is 0db(1)"); | |
54 | module_param(maxvol, int, S_IRUGO | S_IWUSR); | |
55 | ||
56 | ||
1da177e4 LT |
57 | |
58 | /* Structure of address and subaddresses for the tda7432 */ | |
59 | ||
60 | struct tda7432 { | |
d531305a | 61 | struct v4l2_subdev sd; |
1da177e4 LT |
62 | int addr; |
63 | int input; | |
64 | int volume; | |
65 | int muted; | |
66 | int bass, treble; | |
67 | int lf, lr, rf, rr; | |
68 | int loud; | |
1da177e4 | 69 | }; |
d531305a HV |
70 | |
71 | static inline struct tda7432 *to_state(struct v4l2_subdev *sd) | |
72 | { | |
73 | return container_of(sd, struct tda7432, sd); | |
74 | } | |
1da177e4 | 75 | |
1da177e4 LT |
76 | /* The TDA7432 is made by STS-Thompson |
77 | * http://www.st.com | |
78 | * http://us.st.com/stonline/books/pdf/docs/4056.pdf | |
79 | * | |
80 | * TDA7432: I2C-bus controlled basic audio processor | |
81 | * | |
82 | * The TDA7432 controls basic audio functions like volume, balance, | |
83 | * and tone control (including loudness). It also has four channel | |
84 | * output (for front and rear). Since most vidcap cards probably | |
85 | * don't have 4 channel output, this driver will set front & rear | |
86 | * together (no independent control). | |
87 | */ | |
88 | ||
89 | /* Subaddresses for TDA7432 */ | |
90 | ||
91 | #define TDA7432_IN 0x00 /* Input select */ | |
92 | #define TDA7432_VL 0x01 /* Volume */ | |
93 | #define TDA7432_TN 0x02 /* Bass, Treble (Tone) */ | |
94 | #define TDA7432_LF 0x03 /* Attenuation LF (Left Front) */ | |
95 | #define TDA7432_LR 0x04 /* Attenuation LR (Left Rear) */ | |
96 | #define TDA7432_RF 0x05 /* Attenuation RF (Right Front) */ | |
97 | #define TDA7432_RR 0x06 /* Attenuation RR (Right Rear) */ | |
98 | #define TDA7432_LD 0x07 /* Loudness */ | |
99 | ||
100 | ||
101 | /* Masks for bits in TDA7432 subaddresses */ | |
102 | ||
103 | /* Many of these not used - just for documentation */ | |
104 | ||
105 | /* Subaddress 0x00 - Input selection and bass control */ | |
106 | ||
107 | /* Bits 0,1,2 control input: | |
108 | * 0x00 - Stereo input | |
109 | * 0x02 - Mono input | |
110 | * 0x03 - Mute (Using Attenuators Plays better with modules) | |
111 | * Mono probably isn't used - I'm guessing only the stereo | |
112 | * input is connected on most cards, so we'll set it to stereo. | |
113 | * | |
114 | * Bit 3 controls bass cut: 0/1 is non-symmetric/symmetric bass cut | |
115 | * Bit 4 controls bass range: 0/1 is extended/standard bass range | |
116 | * | |
117 | * Highest 3 bits not used | |
118 | */ | |
119 | ||
120 | #define TDA7432_STEREO_IN 0 | |
121 | #define TDA7432_MONO_IN 2 /* Probably won't be used */ | |
122 | #define TDA7432_BASS_SYM 1 << 3 | |
123 | #define TDA7432_BASS_NORM 1 << 4 | |
124 | ||
125 | /* Subaddress 0x01 - Volume */ | |
126 | ||
127 | /* Lower 7 bits control volume from -79dB to +32dB in 1dB steps | |
128 | * Recommended maximum is +20 dB | |
129 | * | |
130 | * +32dB: 0x00 | |
131 | * +20dB: 0x0c | |
132 | * 0dB: 0x20 | |
133 | * -79dB: 0x6f | |
134 | * | |
135 | * MSB (bit 7) controls loudness: 1/0 is loudness on/off | |
136 | */ | |
137 | ||
138 | #define TDA7432_VOL_0DB 0x20 | |
139 | #define TDA7432_LD_ON 1 << 7 | |
140 | ||
141 | ||
142 | /* Subaddress 0x02 - Tone control */ | |
143 | ||
144 | /* Bits 0,1,2 control absolute treble gain from 0dB to 14dB | |
145 | * 0x0 is 14dB, 0x7 is 0dB | |
146 | * | |
147 | * Bit 3 controls treble attenuation/gain (sign) | |
148 | * 1 = gain (+) | |
149 | * 0 = attenuation (-) | |
150 | * | |
151 | * Bits 4,5,6 control absolute bass gain from 0dB to 14dB | |
152 | * (This is only true for normal base range, set in 0x00) | |
153 | * 0x0 << 4 is 14dB, 0x7 is 0dB | |
154 | * | |
155 | * Bit 7 controls bass attenuation/gain (sign) | |
156 | * 1 << 7 = gain (+) | |
157 | * 0 << 7 = attenuation (-) | |
158 | * | |
159 | * Example: | |
160 | * 1 1 0 1 0 1 0 1 is +4dB bass, -4dB treble | |
161 | */ | |
162 | ||
163 | #define TDA7432_TREBLE_0DB 0xf | |
164 | #define TDA7432_TREBLE 7 | |
165 | #define TDA7432_TREBLE_GAIN 1 << 3 | |
166 | #define TDA7432_BASS_0DB 0xf | |
167 | #define TDA7432_BASS 7 << 4 | |
168 | #define TDA7432_BASS_GAIN 1 << 7 | |
169 | ||
170 | ||
171 | /* Subaddress 0x03 - Left Front attenuation */ | |
172 | /* Subaddress 0x04 - Left Rear attenuation */ | |
173 | /* Subaddress 0x05 - Right Front attenuation */ | |
174 | /* Subaddress 0x06 - Right Rear attenuation */ | |
175 | ||
176 | /* Bits 0,1,2,3,4 control attenuation from 0dB to -37.5dB | |
177 | * in 1.5dB steps. | |
178 | * | |
179 | * 0x00 is 0dB | |
180 | * 0x1f is -37.5dB | |
181 | * | |
182 | * Bit 5 mutes that channel when set (1 = mute, 0 = unmute) | |
183 | * We'll use the mute on the input, though (above) | |
184 | * Bits 6,7 unused | |
185 | */ | |
186 | ||
187 | #define TDA7432_ATTEN_0DB 0x00 | |
188 | #define TDA7432_MUTE 0x1 << 5 | |
189 | ||
190 | ||
191 | /* Subaddress 0x07 - Loudness Control */ | |
192 | ||
193 | /* Bits 0,1,2,3 control loudness from 0dB to -15dB in 1dB steps | |
194 | * when bit 4 is NOT set | |
195 | * | |
196 | * 0x0 is 0dB | |
197 | * 0xf is -15dB | |
198 | * | |
199 | * If bit 4 is set, then there is a flat attenuation according to | |
200 | * the lower 4 bits, as above. | |
201 | * | |
202 | * Bits 5,6,7 unused | |
203 | */ | |
204 | ||
205 | ||
206 | ||
207 | /* Begin code */ | |
208 | ||
d531305a | 209 | static int tda7432_write(struct v4l2_subdev *sd, int subaddr, int val) |
1da177e4 | 210 | { |
d531305a | 211 | struct i2c_client *client = v4l2_get_subdevdata(sd); |
1da177e4 | 212 | unsigned char buffer[2]; |
d531305a HV |
213 | |
214 | v4l2_dbg(2, debug, sd, "In tda7432_write\n"); | |
215 | v4l2_dbg(1, debug, sd, "Writing %d 0x%x\n", subaddr, val); | |
1da177e4 LT |
216 | buffer[0] = subaddr; |
217 | buffer[1] = val; | |
d531305a HV |
218 | if (2 != i2c_master_send(client, buffer, 2)) { |
219 | v4l2_err(sd, "I/O error, trying (write %d 0x%x)\n", | |
1da177e4 LT |
220 | subaddr, val); |
221 | return -1; | |
222 | } | |
223 | return 0; | |
224 | } | |
225 | ||
d531305a | 226 | static int tda7432_set(struct v4l2_subdev *sd) |
1da177e4 | 227 | { |
d531305a HV |
228 | struct i2c_client *client = v4l2_get_subdevdata(sd); |
229 | struct tda7432 *t = to_state(sd); | |
1da177e4 | 230 | unsigned char buf[16]; |
1da177e4 | 231 | |
d531305a | 232 | v4l2_dbg(1, debug, sd, |
1da177e4 | 233 | "tda7432: 7432_set(0x%02x,0x%02x,0x%02x,0x%02x,0x%02x,0x%02x,0x%02x,0x%02x,0x%02x)\n", |
d531305a HV |
234 | t->input, t->volume, t->bass, t->treble, t->lf, t->lr, |
235 | t->rf, t->rr, t->loud); | |
1da177e4 LT |
236 | buf[0] = TDA7432_IN; |
237 | buf[1] = t->input; | |
238 | buf[2] = t->volume; | |
239 | buf[3] = t->bass; | |
240 | buf[4] = t->treble; | |
241 | buf[5] = t->lf; | |
242 | buf[6] = t->lr; | |
243 | buf[7] = t->rf; | |
244 | buf[8] = t->rr; | |
245 | buf[9] = t->loud; | |
d531305a HV |
246 | if (10 != i2c_master_send(client, buf, 10)) { |
247 | v4l2_err(sd, "I/O error, trying tda7432_set\n"); | |
1da177e4 LT |
248 | return -1; |
249 | } | |
250 | ||
251 | return 0; | |
252 | } | |
253 | ||
d531305a | 254 | static void do_tda7432_init(struct v4l2_subdev *sd) |
1da177e4 | 255 | { |
d531305a HV |
256 | struct tda7432 *t = to_state(sd); |
257 | ||
258 | v4l2_dbg(2, debug, sd, "In tda7432_init\n"); | |
1da177e4 LT |
259 | |
260 | t->input = TDA7432_STEREO_IN | /* Main (stereo) input */ | |
261 | TDA7432_BASS_SYM | /* Symmetric bass cut */ | |
262 | TDA7432_BASS_NORM; /* Normal bass range */ | |
263 | t->volume = 0x3b ; /* -27dB Volume */ | |
264 | if (loudness) /* Turn loudness on? */ | |
265 | t->volume |= TDA7432_LD_ON; | |
7a00d45c | 266 | t->muted = 1; |
1da177e4 LT |
267 | t->treble = TDA7432_TREBLE_0DB; /* 0dB Treble */ |
268 | t->bass = TDA7432_BASS_0DB; /* 0dB Bass */ | |
269 | t->lf = TDA7432_ATTEN_0DB; /* 0dB attenuation */ | |
270 | t->lr = TDA7432_ATTEN_0DB; /* 0dB attenuation */ | |
271 | t->rf = TDA7432_ATTEN_0DB; /* 0dB attenuation */ | |
272 | t->rr = TDA7432_ATTEN_0DB; /* 0dB attenuation */ | |
273 | t->loud = loudness; /* insmod parameter */ | |
274 | ||
d531305a | 275 | tda7432_set(sd); |
1da177e4 LT |
276 | } |
277 | ||
d531305a | 278 | static int tda7432_g_ctrl(struct v4l2_subdev *sd, struct v4l2_control *ctrl) |
1da177e4 | 279 | { |
d531305a | 280 | struct tda7432 *t = to_state(sd); |
1da177e4 | 281 | |
7a00d45c MCC |
282 | switch (ctrl->id) { |
283 | case V4L2_CID_AUDIO_MUTE: | |
284 | ctrl->value=t->muted; | |
285 | return 0; | |
286 | case V4L2_CID_AUDIO_VOLUME: | |
1da177e4 | 287 | if (!maxvol){ /* max +20db */ |
7a00d45c | 288 | ctrl->value = ( 0x6f - (t->volume & 0x7F) ) * 630; |
1da177e4 | 289 | } else { /* max 0db */ |
7a00d45c | 290 | ctrl->value = ( 0x6f - (t->volume & 0x7F) ) * 829; |
1da177e4 | 291 | } |
7a00d45c MCC |
292 | return 0; |
293 | case V4L2_CID_AUDIO_BALANCE: | |
294 | { | |
1da177e4 LT |
295 | if ( (t->lf) < (t->rf) ) |
296 | /* right is attenuated, balance shifted left */ | |
7a00d45c | 297 | ctrl->value = (32768 - 1057*(t->rf)); |
1da177e4 LT |
298 | else |
299 | /* left is attenuated, balance shifted right */ | |
7a00d45c MCC |
300 | ctrl->value = (32768 + 1057*(t->lf)); |
301 | return 0; | |
302 | } | |
303 | case V4L2_CID_AUDIO_BASS: | |
304 | { | |
1da177e4 | 305 | /* Bass/treble 4 bits each */ |
7a00d45c MCC |
306 | int bass=t->bass; |
307 | if(bass >= 0x8) | |
308 | bass = ~(bass - 0x8) & 0xf; | |
309 | ctrl->value = (bass << 12)+(bass << 8)+(bass << 4)+(bass); | |
310 | return 0; | |
1da177e4 | 311 | } |
7a00d45c | 312 | case V4L2_CID_AUDIO_TREBLE: |
1da177e4 | 313 | { |
7a00d45c MCC |
314 | int treble=t->treble; |
315 | if(treble >= 0x8) | |
316 | treble = ~(treble - 0x8) & 0xf; | |
317 | ctrl->value = (treble << 12)+(treble << 8)+(treble << 4)+(treble); | |
318 | return 0; | |
319 | } | |
320 | } | |
321 | return -EINVAL; | |
322 | } | |
1da177e4 | 323 | |
d531305a | 324 | static int tda7432_s_ctrl(struct v4l2_subdev *sd, struct v4l2_control *ctrl) |
7a00d45c | 325 | { |
d531305a | 326 | struct tda7432 *t = to_state(sd); |
1da177e4 | 327 | |
7a00d45c MCC |
328 | switch (ctrl->id) { |
329 | case V4L2_CID_AUDIO_MUTE: | |
330 | t->muted=ctrl->value; | |
331 | break; | |
332 | case V4L2_CID_AUDIO_VOLUME: | |
333 | if(!maxvol){ /* max +20db */ | |
334 | t->volume = 0x6f - ((ctrl->value)/630); | |
335 | } else { /* max 0db */ | |
336 | t->volume = 0x6f - ((ctrl->value)/829); | |
337 | } | |
1da177e4 LT |
338 | if (loudness) /* Turn on the loudness bit */ |
339 | t->volume |= TDA7432_LD_ON; | |
340 | ||
d531305a | 341 | tda7432_write(sd, TDA7432_VL, t->volume); |
7a00d45c MCC |
342 | return 0; |
343 | case V4L2_CID_AUDIO_BALANCE: | |
344 | if (ctrl->value < 32768) { | |
1da177e4 | 345 | /* shifted to left, attenuate right */ |
7a00d45c | 346 | t->rr = (32768 - ctrl->value)/1057; |
1da177e4 LT |
347 | t->rf = t->rr; |
348 | t->lr = TDA7432_ATTEN_0DB; | |
349 | t->lf = TDA7432_ATTEN_0DB; | |
7a00d45c | 350 | } else if(ctrl->value > 32769) { |
1da177e4 | 351 | /* shifted to right, attenuate left */ |
7a00d45c | 352 | t->lf = (ctrl->value - 32768)/1057; |
1da177e4 LT |
353 | t->lr = t->lf; |
354 | t->rr = TDA7432_ATTEN_0DB; | |
355 | t->rf = TDA7432_ATTEN_0DB; | |
7a00d45c | 356 | } else { |
1da177e4 LT |
357 | /* centered */ |
358 | t->rr = TDA7432_ATTEN_0DB; | |
359 | t->rf = TDA7432_ATTEN_0DB; | |
360 | t->lf = TDA7432_ATTEN_0DB; | |
361 | t->lr = TDA7432_ATTEN_0DB; | |
362 | } | |
7a00d45c MCC |
363 | break; |
364 | case V4L2_CID_AUDIO_BASS: | |
365 | t->bass = ctrl->value >> 12; | |
366 | if(t->bass>= 0x8) | |
367 | t->bass = (~t->bass & 0xf) + 0x8 ; | |
368 | ||
d531305a | 369 | tda7432_write(sd, TDA7432_TN, 0x10 | (t->bass << 4) | t->treble); |
7a00d45c MCC |
370 | return 0; |
371 | case V4L2_CID_AUDIO_TREBLE: | |
372 | t->treble= ctrl->value >> 12; | |
373 | if(t->treble>= 0x8) | |
374 | t->treble = (~t->treble & 0xf) + 0x8 ; | |
375 | ||
d531305a | 376 | tda7432_write(sd, TDA7432_TN, 0x10 | (t->bass << 4) | t->treble); |
7a00d45c MCC |
377 | return 0; |
378 | default: | |
379 | return -EINVAL; | |
380 | } | |
1da177e4 | 381 | |
7a00d45c MCC |
382 | /* Used for both mute and balance changes */ |
383 | if (t->muted) | |
384 | { | |
385 | /* Mute & update balance*/ | |
d531305a HV |
386 | tda7432_write(sd, TDA7432_LF, t->lf | TDA7432_MUTE); |
387 | tda7432_write(sd, TDA7432_LR, t->lr | TDA7432_MUTE); | |
388 | tda7432_write(sd, TDA7432_RF, t->rf | TDA7432_MUTE); | |
389 | tda7432_write(sd, TDA7432_RR, t->rr | TDA7432_MUTE); | |
7a00d45c | 390 | } else { |
d531305a HV |
391 | tda7432_write(sd, TDA7432_LF, t->lf); |
392 | tda7432_write(sd, TDA7432_LR, t->lr); | |
393 | tda7432_write(sd, TDA7432_RF, t->rf); | |
394 | tda7432_write(sd, TDA7432_RR, t->rr); | |
7a00d45c MCC |
395 | } |
396 | return 0; | |
397 | } | |
1da177e4 | 398 | |
d531305a | 399 | static int tda7432_queryctrl(struct v4l2_subdev *sd, struct v4l2_queryctrl *qc) |
7a00d45c | 400 | { |
d531305a | 401 | switch (qc->id) { |
d531305a | 402 | case V4L2_CID_AUDIO_VOLUME: |
10afbef1 HV |
403 | return v4l2_ctrl_query_fill(qc, 0, 65535, 65535 / 100, 58880); |
404 | case V4L2_CID_AUDIO_MUTE: | |
405 | return v4l2_ctrl_query_fill(qc, 0, 1, 1, 0); | |
d531305a HV |
406 | case V4L2_CID_AUDIO_BALANCE: |
407 | case V4L2_CID_AUDIO_BASS: | |
408 | case V4L2_CID_AUDIO_TREBLE: | |
10afbef1 | 409 | return v4l2_ctrl_query_fill(qc, 0, 65535, 65535 / 100, 32768); |
7a00d45c | 410 | } |
d531305a HV |
411 | return -EINVAL; |
412 | } | |
1da177e4 | 413 | |
d531305a HV |
414 | /* ----------------------------------------------------------------------- */ |
415 | ||
416 | static const struct v4l2_subdev_core_ops tda7432_core_ops = { | |
417 | .queryctrl = tda7432_queryctrl, | |
418 | .g_ctrl = tda7432_g_ctrl, | |
419 | .s_ctrl = tda7432_s_ctrl, | |
1da177e4 LT |
420 | }; |
421 | ||
d531305a HV |
422 | static const struct v4l2_subdev_ops tda7432_ops = { |
423 | .core = &tda7432_core_ops, | |
1da177e4 LT |
424 | }; |
425 | ||
d531305a HV |
426 | /* ----------------------------------------------------------------------- */ |
427 | ||
428 | /* *********************** * | |
429 | * i2c interface functions * | |
430 | * *********************** */ | |
431 | ||
432 | static int tda7432_probe(struct i2c_client *client, | |
433 | const struct i2c_device_id *id) | |
1da177e4 | 434 | { |
d531305a HV |
435 | struct tda7432 *t; |
436 | struct v4l2_subdev *sd; | |
437 | ||
438 | v4l_info(client, "chip found @ 0x%02x (%s)\n", | |
439 | client->addr << 1, client->adapter->name); | |
440 | ||
441 | t = kzalloc(sizeof(*t), GFP_KERNEL); | |
442 | if (!t) | |
443 | return -ENOMEM; | |
444 | sd = &t->sd; | |
445 | v4l2_i2c_subdev_init(sd, client, &tda7432_ops); | |
446 | if (loudness < 0 || loudness > 15) { | |
447 | v4l2_warn(sd, "loudness parameter must be between 0 and 15\n"); | |
448 | if (loudness < 0) | |
449 | loudness = 0; | |
450 | if (loudness > 15) | |
451 | loudness = 15; | |
1da177e4 LT |
452 | } |
453 | ||
d531305a HV |
454 | do_tda7432_init(sd); |
455 | return 0; | |
1da177e4 LT |
456 | } |
457 | ||
d531305a | 458 | static int tda7432_remove(struct i2c_client *client) |
1da177e4 | 459 | { |
d531305a | 460 | struct v4l2_subdev *sd = i2c_get_clientdata(client); |
1da177e4 | 461 | |
d531305a HV |
462 | do_tda7432_init(sd); |
463 | v4l2_device_unregister_subdev(sd); | |
464 | kfree(to_state(sd)); | |
465 | return 0; | |
466 | } | |
1da177e4 | 467 | |
d531305a HV |
468 | static const struct i2c_device_id tda7432_id[] = { |
469 | { "tda7432", 0 }, | |
470 | { } | |
471 | }; | |
472 | MODULE_DEVICE_TABLE(i2c, tda7432_id); | |
473 | ||
5b9f80af HV |
474 | static struct i2c_driver tda7432_driver = { |
475 | .driver = { | |
476 | .owner = THIS_MODULE, | |
477 | .name = "tda7432", | |
478 | }, | |
479 | .probe = tda7432_probe, | |
480 | .remove = tda7432_remove, | |
481 | .id_table = tda7432_id, | |
d531305a | 482 | }; |
5b9f80af HV |
483 | |
484 | static __init int init_tda7432(void) | |
485 | { | |
486 | return i2c_add_driver(&tda7432_driver); | |
487 | } | |
488 | ||
489 | static __exit void exit_tda7432(void) | |
490 | { | |
491 | i2c_del_driver(&tda7432_driver); | |
492 | } | |
493 | ||
494 | module_init(init_tda7432); | |
495 | module_exit(exit_tda7432); |