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Commit | Line | Data |
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d56410e0 | 1 | /* |
1da177e4 LT |
2 | * saa7111 - Philips SAA7111A video decoder driver version 0.0.3 |
3 | * | |
4 | * Copyright (C) 1998 Dave Perks <dperks@ibm.net> | |
5 | * | |
6 | * Slight changes for video timing and attachment output by | |
7 | * Wolfgang Scherr <scherr@net4you.net> | |
8 | * | |
9 | * Changes by Ronald Bultje <rbultje@ronald.bitfreak.net> | |
10 | * - moved over to linux>=2.4.x i2c protocol (1/1/2003) | |
11 | * | |
12 | * Changes by Michael Hunold <michael@mihu.de> | |
13 | * - implemented DECODER_SET_GPIO, DECODER_INIT, DECODER_SET_VBI_BYPASS | |
14 | * | |
15 | * This program is free software; you can redistribute it and/or modify | |
16 | * it under the terms of the GNU General Public License as published by | |
17 | * the Free Software Foundation; either version 2 of the License, or | |
18 | * (at your option) any later version. | |
19 | * | |
20 | * This program is distributed in the hope that it will be useful, | |
21 | * but WITHOUT ANY WARRANTY; without even the implied warranty of | |
22 | * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the | |
23 | * GNU General Public License for more details. | |
24 | * | |
25 | * You should have received a copy of the GNU General Public License | |
26 | * along with this program; if not, write to the Free Software | |
27 | * Foundation, Inc., 675 Mass Ave, Cambridge, MA 02139, USA. | |
28 | */ | |
29 | ||
30 | #include <linux/module.h> | |
31 | #include <linux/init.h> | |
32 | #include <linux/delay.h> | |
33 | #include <linux/errno.h> | |
34 | #include <linux/fs.h> | |
35 | #include <linux/kernel.h> | |
36 | #include <linux/major.h> | |
37 | #include <linux/slab.h> | |
38 | #include <linux/mm.h> | |
1da177e4 | 39 | #include <linux/signal.h> |
18f3fa1e MCC |
40 | #include <linux/types.h> |
41 | #include <linux/i2c.h> | |
1da177e4 LT |
42 | #include <asm/io.h> |
43 | #include <asm/pgtable.h> | |
44 | #include <asm/page.h> | |
18f3fa1e | 45 | #include <asm/uaccess.h> |
1da177e4 LT |
46 | |
47 | #include <linux/videodev.h> | |
18f3fa1e | 48 | #include <linux/video_decoder.h> |
1da177e4 LT |
49 | |
50 | MODULE_DESCRIPTION("Philips SAA7111 video decoder driver"); | |
51 | MODULE_AUTHOR("Dave Perks"); | |
52 | MODULE_LICENSE("GPL"); | |
53 | ||
1da177e4 LT |
54 | |
55 | #define I2C_NAME(s) (s)->name | |
56 | ||
1da177e4 | 57 | |
ff699e6b | 58 | static int debug; |
1da177e4 LT |
59 | module_param(debug, int, 0644); |
60 | MODULE_PARM_DESC(debug, "Debug level (0-1)"); | |
61 | ||
62 | #define dprintk(num, format, args...) \ | |
63 | do { \ | |
64 | if (debug >= num) \ | |
65 | printk(format, ##args); \ | |
66 | } while (0) | |
67 | ||
68 | /* ----------------------------------------------------------------------- */ | |
69 | ||
6eb5d9ca JD |
70 | #define SAA7111_NR_REG 0x18 |
71 | ||
1da177e4 | 72 | struct saa7111 { |
6eb5d9ca | 73 | unsigned char reg[SAA7111_NR_REG]; |
1da177e4 LT |
74 | |
75 | int norm; | |
76 | int input; | |
77 | int enable; | |
1da177e4 LT |
78 | }; |
79 | ||
80 | #define I2C_SAA7111 0x48 | |
81 | ||
82 | /* ----------------------------------------------------------------------- */ | |
83 | ||
84 | static inline int | |
85 | saa7111_write (struct i2c_client *client, | |
86 | u8 reg, | |
87 | u8 value) | |
88 | { | |
89 | struct saa7111 *decoder = i2c_get_clientdata(client); | |
90 | ||
91 | decoder->reg[reg] = value; | |
92 | return i2c_smbus_write_byte_data(client, reg, value); | |
93 | } | |
94 | ||
624fc7f5 RK |
95 | static inline void |
96 | saa7111_write_if_changed(struct i2c_client *client, u8 reg, u8 value) | |
97 | { | |
98 | struct saa7111 *decoder = i2c_get_clientdata(client); | |
99 | ||
100 | if (decoder->reg[reg] != value) { | |
101 | decoder->reg[reg] = value; | |
102 | i2c_smbus_write_byte_data(client, reg, value); | |
103 | } | |
104 | } | |
105 | ||
1da177e4 LT |
106 | static int |
107 | saa7111_write_block (struct i2c_client *client, | |
108 | const u8 *data, | |
109 | unsigned int len) | |
110 | { | |
111 | int ret = -1; | |
112 | u8 reg; | |
113 | ||
114 | /* the saa7111 has an autoincrement function, use it if | |
115 | * the adapter understands raw I2C */ | |
116 | if (i2c_check_functionality(client->adapter, I2C_FUNC_I2C)) { | |
117 | /* do raw I2C, not smbus compatible */ | |
118 | struct saa7111 *decoder = i2c_get_clientdata(client); | |
1da177e4 | 119 | u8 block_data[32]; |
9aa45e34 | 120 | int block_len; |
1da177e4 | 121 | |
1da177e4 | 122 | while (len >= 2) { |
9aa45e34 JD |
123 | block_len = 0; |
124 | block_data[block_len++] = reg = data[0]; | |
1da177e4 | 125 | do { |
9aa45e34 | 126 | block_data[block_len++] = |
1da177e4 LT |
127 | decoder->reg[reg++] = data[1]; |
128 | len -= 2; | |
129 | data += 2; | |
130 | } while (len >= 2 && data[0] == reg && | |
9aa45e34 JD |
131 | block_len < 32); |
132 | if ((ret = i2c_master_send(client, block_data, | |
133 | block_len)) < 0) | |
1da177e4 LT |
134 | break; |
135 | } | |
136 | } else { | |
137 | /* do some slow I2C emulation kind of thing */ | |
138 | while (len >= 2) { | |
139 | reg = *data++; | |
140 | if ((ret = saa7111_write(client, reg, | |
141 | *data++)) < 0) | |
142 | break; | |
143 | len -= 2; | |
144 | } | |
145 | } | |
146 | ||
147 | return ret; | |
148 | } | |
149 | ||
150 | static int | |
151 | saa7111_init_decoder (struct i2c_client *client, | |
152 | struct video_decoder_init *init) | |
153 | { | |
154 | return saa7111_write_block(client, init->data, init->len); | |
155 | } | |
156 | ||
157 | static inline int | |
158 | saa7111_read (struct i2c_client *client, | |
159 | u8 reg) | |
160 | { | |
161 | return i2c_smbus_read_byte_data(client, reg); | |
162 | } | |
163 | ||
164 | /* ----------------------------------------------------------------------- */ | |
165 | ||
166 | static const unsigned char saa7111_i2c_init[] = { | |
167 | 0x00, 0x00, /* 00 - ID byte */ | |
168 | 0x01, 0x00, /* 01 - reserved */ | |
169 | ||
170 | /*front end */ | |
171 | 0x02, 0xd0, /* 02 - FUSE=3, GUDL=2, MODE=0 */ | |
172 | 0x03, 0x23, /* 03 - HLNRS=0, VBSL=1, WPOFF=0, | |
173 | * HOLDG=0, GAFIX=0, GAI1=256, GAI2=256 */ | |
174 | 0x04, 0x00, /* 04 - GAI1=256 */ | |
175 | 0x05, 0x00, /* 05 - GAI2=256 */ | |
176 | ||
177 | /* decoder */ | |
178 | 0x06, 0xf3, /* 06 - HSB at 13(50Hz) / 17(60Hz) | |
179 | * pixels after end of last line */ | |
180 | /*0x07, 0x13, * 07 - HSS at 113(50Hz) / 117(60Hz) pixels | |
181 | * after end of last line */ | |
182 | 0x07, 0xe8, /* 07 - HSS seems to be needed to | |
183 | * work with NTSC, too */ | |
184 | 0x08, 0xc8, /* 08 - AUFD=1, FSEL=1, EXFIL=0, | |
185 | * VTRC=1, HPLL=0, VNOI=0 */ | |
186 | 0x09, 0x01, /* 09 - BYPS=0, PREF=0, BPSS=0, | |
187 | * VBLB=0, UPTCV=0, APER=1 */ | |
188 | 0x0a, 0x80, /* 0a - BRIG=128 */ | |
189 | 0x0b, 0x47, /* 0b - CONT=1.109 */ | |
190 | 0x0c, 0x40, /* 0c - SATN=1.0 */ | |
191 | 0x0d, 0x00, /* 0d - HUE=0 */ | |
192 | 0x0e, 0x01, /* 0e - CDTO=0, CSTD=0, DCCF=0, | |
193 | * FCTC=0, CHBW=1 */ | |
194 | 0x0f, 0x00, /* 0f - reserved */ | |
195 | 0x10, 0x48, /* 10 - OFTS=1, HDEL=0, VRLN=1, YDEL=0 */ | |
196 | 0x11, 0x1c, /* 11 - GPSW=0, CM99=0, FECO=0, COMPO=1, | |
197 | * OEYC=1, OEHV=1, VIPB=0, COLO=0 */ | |
198 | 0x12, 0x00, /* 12 - output control 2 */ | |
199 | 0x13, 0x00, /* 13 - output control 3 */ | |
200 | 0x14, 0x00, /* 14 - reserved */ | |
201 | 0x15, 0x00, /* 15 - VBI */ | |
202 | 0x16, 0x00, /* 16 - VBI */ | |
203 | 0x17, 0x00, /* 17 - VBI */ | |
204 | }; | |
205 | ||
206 | static int | |
207 | saa7111_command (struct i2c_client *client, | |
208 | unsigned int cmd, | |
209 | void *arg) | |
210 | { | |
211 | struct saa7111 *decoder = i2c_get_clientdata(client); | |
212 | ||
213 | switch (cmd) { | |
214 | ||
215 | case 0: | |
58a0b84c | 216 | break; |
1da177e4 LT |
217 | case DECODER_INIT: |
218 | { | |
219 | struct video_decoder_init *init = arg; | |
220 | if (NULL != init) | |
221 | return saa7111_init_decoder(client, init); | |
222 | else { | |
223 | struct video_decoder_init vdi; | |
224 | vdi.data = saa7111_i2c_init; | |
225 | vdi.len = sizeof(saa7111_i2c_init); | |
226 | return saa7111_init_decoder(client, &vdi); | |
227 | } | |
228 | } | |
229 | ||
230 | case DECODER_DUMP: | |
231 | { | |
232 | int i; | |
233 | ||
6eb5d9ca | 234 | for (i = 0; i < SAA7111_NR_REG; i += 16) { |
1da177e4 LT |
235 | int j; |
236 | ||
237 | printk(KERN_DEBUG "%s: %03x", I2C_NAME(client), i); | |
6eb5d9ca | 238 | for (j = 0; j < 16 && i + j < SAA7111_NR_REG; ++j) { |
1da177e4 LT |
239 | printk(" %02x", |
240 | saa7111_read(client, i + j)); | |
241 | } | |
242 | printk("\n"); | |
243 | } | |
244 | } | |
245 | break; | |
246 | ||
247 | case DECODER_GET_CAPABILITIES: | |
248 | { | |
249 | struct video_decoder_capability *cap = arg; | |
250 | ||
251 | cap->flags = VIDEO_DECODER_PAL | | |
252 | VIDEO_DECODER_NTSC | | |
253 | VIDEO_DECODER_SECAM | | |
254 | VIDEO_DECODER_AUTO | | |
255 | VIDEO_DECODER_CCIR; | |
256 | cap->inputs = 8; | |
257 | cap->outputs = 1; | |
258 | } | |
259 | break; | |
260 | ||
261 | case DECODER_GET_STATUS: | |
262 | { | |
263 | int *iarg = arg; | |
264 | int status; | |
265 | int res; | |
266 | ||
267 | status = saa7111_read(client, 0x1f); | |
268 | dprintk(1, KERN_DEBUG "%s status: 0x%02x\n", I2C_NAME(client), | |
269 | status); | |
270 | res = 0; | |
271 | if ((status & (1 << 6)) == 0) { | |
272 | res |= DECODER_STATUS_GOOD; | |
273 | } | |
274 | switch (decoder->norm) { | |
275 | case VIDEO_MODE_NTSC: | |
276 | res |= DECODER_STATUS_NTSC; | |
277 | break; | |
278 | case VIDEO_MODE_PAL: | |
279 | res |= DECODER_STATUS_PAL; | |
280 | break; | |
281 | case VIDEO_MODE_SECAM: | |
282 | res |= DECODER_STATUS_SECAM; | |
283 | break; | |
284 | default: | |
285 | case VIDEO_MODE_AUTO: | |
286 | if ((status & (1 << 5)) != 0) { | |
287 | res |= DECODER_STATUS_NTSC; | |
288 | } else { | |
289 | res |= DECODER_STATUS_PAL; | |
290 | } | |
291 | break; | |
292 | } | |
293 | if ((status & (1 << 0)) != 0) { | |
294 | res |= DECODER_STATUS_COLOR; | |
295 | } | |
296 | *iarg = res; | |
297 | } | |
298 | break; | |
299 | ||
300 | case DECODER_SET_GPIO: | |
301 | { | |
302 | int *iarg = arg; | |
303 | if (0 != *iarg) { | |
304 | saa7111_write(client, 0x11, | |
305 | (decoder->reg[0x11] | 0x80)); | |
306 | } else { | |
307 | saa7111_write(client, 0x11, | |
308 | (decoder->reg[0x11] & 0x7f)); | |
309 | } | |
310 | break; | |
311 | } | |
312 | ||
313 | case DECODER_SET_VBI_BYPASS: | |
314 | { | |
315 | int *iarg = arg; | |
316 | if (0 != *iarg) { | |
317 | saa7111_write(client, 0x13, | |
318 | (decoder->reg[0x13] & 0xf0) | 0x0a); | |
319 | } else { | |
320 | saa7111_write(client, 0x13, | |
321 | (decoder->reg[0x13] & 0xf0)); | |
322 | } | |
323 | break; | |
324 | } | |
325 | ||
326 | case DECODER_SET_NORM: | |
327 | { | |
328 | int *iarg = arg; | |
329 | ||
330 | switch (*iarg) { | |
331 | ||
332 | case VIDEO_MODE_NTSC: | |
333 | saa7111_write(client, 0x08, | |
334 | (decoder->reg[0x08] & 0x3f) | 0x40); | |
335 | saa7111_write(client, 0x0e, | |
336 | (decoder->reg[0x0e] & 0x8f)); | |
337 | break; | |
338 | ||
339 | case VIDEO_MODE_PAL: | |
340 | saa7111_write(client, 0x08, | |
341 | (decoder->reg[0x08] & 0x3f) | 0x00); | |
342 | saa7111_write(client, 0x0e, | |
343 | (decoder->reg[0x0e] & 0x8f)); | |
344 | break; | |
345 | ||
346 | case VIDEO_MODE_SECAM: | |
347 | saa7111_write(client, 0x08, | |
348 | (decoder->reg[0x08] & 0x3f) | 0x00); | |
349 | saa7111_write(client, 0x0e, | |
350 | (decoder->reg[0x0e] & 0x8f) | 0x50); | |
351 | break; | |
352 | ||
353 | case VIDEO_MODE_AUTO: | |
354 | saa7111_write(client, 0x08, | |
355 | (decoder->reg[0x08] & 0x3f) | 0x80); | |
356 | saa7111_write(client, 0x0e, | |
357 | (decoder->reg[0x0e] & 0x8f)); | |
358 | break; | |
359 | ||
360 | default: | |
361 | return -EINVAL; | |
362 | ||
363 | } | |
364 | decoder->norm = *iarg; | |
365 | } | |
366 | break; | |
367 | ||
368 | case DECODER_SET_INPUT: | |
369 | { | |
370 | int *iarg = arg; | |
371 | ||
372 | if (*iarg < 0 || *iarg > 7) { | |
373 | return -EINVAL; | |
374 | } | |
375 | ||
376 | if (decoder->input != *iarg) { | |
377 | decoder->input = *iarg; | |
378 | /* select mode */ | |
379 | saa7111_write(client, 0x02, | |
380 | (decoder-> | |
381 | reg[0x02] & 0xf8) | decoder->input); | |
382 | /* bypass chrominance trap for modes 4..7 */ | |
383 | saa7111_write(client, 0x09, | |
384 | (decoder-> | |
385 | reg[0x09] & 0x7f) | ((decoder-> | |
386 | input > | |
387 | 3) ? 0x80 : | |
388 | 0)); | |
389 | } | |
390 | } | |
391 | break; | |
392 | ||
393 | case DECODER_SET_OUTPUT: | |
394 | { | |
395 | int *iarg = arg; | |
396 | ||
397 | /* not much choice of outputs */ | |
398 | if (*iarg != 0) { | |
399 | return -EINVAL; | |
400 | } | |
401 | } | |
402 | break; | |
403 | ||
404 | case DECODER_ENABLE_OUTPUT: | |
405 | { | |
406 | int *iarg = arg; | |
407 | int enable = (*iarg != 0); | |
408 | ||
409 | if (decoder->enable != enable) { | |
410 | decoder->enable = enable; | |
411 | ||
412 | /* RJ: If output should be disabled (for | |
413 | * playing videos), we also need a open PLL. | |
414 | * The input is set to 0 (where no input | |
415 | * source is connected), although this | |
416 | * is not necessary. | |
417 | * | |
418 | * If output should be enabled, we have to | |
419 | * reverse the above. | |
420 | */ | |
421 | ||
422 | if (decoder->enable) { | |
423 | saa7111_write(client, 0x02, | |
424 | (decoder-> | |
425 | reg[0x02] & 0xf8) | | |
426 | decoder->input); | |
427 | saa7111_write(client, 0x08, | |
428 | (decoder->reg[0x08] & 0xfb)); | |
429 | saa7111_write(client, 0x11, | |
430 | (decoder-> | |
431 | reg[0x11] & 0xf3) | 0x0c); | |
432 | } else { | |
433 | saa7111_write(client, 0x02, | |
434 | (decoder->reg[0x02] & 0xf8)); | |
435 | saa7111_write(client, 0x08, | |
436 | (decoder-> | |
437 | reg[0x08] & 0xfb) | 0x04); | |
438 | saa7111_write(client, 0x11, | |
439 | (decoder->reg[0x11] & 0xf3)); | |
440 | } | |
441 | } | |
442 | } | |
443 | break; | |
444 | ||
445 | case DECODER_SET_PICTURE: | |
446 | { | |
447 | struct video_picture *pic = arg; | |
448 | ||
624fc7f5 RK |
449 | /* We want 0 to 255 we get 0-65535 */ |
450 | saa7111_write_if_changed(client, 0x0a, pic->brightness >> 8); | |
451 | /* We want 0 to 127 we get 0-65535 */ | |
452 | saa7111_write(client, 0x0b, pic->contrast >> 9); | |
453 | /* We want 0 to 127 we get 0-65535 */ | |
454 | saa7111_write(client, 0x0c, pic->colour >> 9); | |
455 | /* We want -128 to 127 we get 0-65535 */ | |
456 | saa7111_write(client, 0x0d, (pic->hue - 32768) >> 8); | |
1da177e4 LT |
457 | } |
458 | break; | |
459 | ||
460 | default: | |
461 | return -EINVAL; | |
462 | } | |
463 | ||
464 | return 0; | |
465 | } | |
466 | ||
467 | /* ----------------------------------------------------------------------- */ | |
468 | ||
469 | /* | |
470 | * Generic i2c probe | |
471 | * concerning the addresses: i2c wants 7 bit (without the r/w bit), so '>>1' | |
472 | */ | |
473 | static unsigned short normal_i2c[] = { I2C_SAA7111 >> 1, I2C_CLIENT_END }; | |
1da177e4 | 474 | |
68cc9d0b | 475 | static unsigned short ignore = I2C_CLIENT_END; |
d56410e0 | 476 | |
1da177e4 LT |
477 | static struct i2c_client_address_data addr_data = { |
478 | .normal_i2c = normal_i2c, | |
68cc9d0b JD |
479 | .probe = &ignore, |
480 | .ignore = &ignore, | |
1da177e4 LT |
481 | }; |
482 | ||
483 | static struct i2c_driver i2c_driver_saa7111; | |
484 | ||
485 | static int | |
486 | saa7111_detect_client (struct i2c_adapter *adapter, | |
487 | int address, | |
488 | int kind) | |
489 | { | |
490 | int i; | |
491 | struct i2c_client *client; | |
492 | struct saa7111 *decoder; | |
493 | struct video_decoder_init vdi; | |
494 | ||
495 | dprintk(1, | |
496 | KERN_INFO | |
497 | "saa7111.c: detecting saa7111 client on address 0x%x\n", | |
498 | address << 1); | |
499 | ||
500 | /* Check if the adapter supports the needed features */ | |
501 | if (!i2c_check_functionality(adapter, I2C_FUNC_SMBUS_BYTE_DATA)) | |
502 | return 0; | |
503 | ||
7408187d | 504 | client = kzalloc(sizeof(struct i2c_client), GFP_KERNEL); |
5fa1247a | 505 | if (!client) |
1da177e4 | 506 | return -ENOMEM; |
1da177e4 LT |
507 | client->addr = address; |
508 | client->adapter = adapter; | |
509 | client->driver = &i2c_driver_saa7111; | |
1da177e4 LT |
510 | strlcpy(I2C_NAME(client), "saa7111", sizeof(I2C_NAME(client))); |
511 | ||
7408187d | 512 | decoder = kzalloc(sizeof(struct saa7111), GFP_KERNEL); |
1da177e4 LT |
513 | if (decoder == NULL) { |
514 | kfree(client); | |
515 | return -ENOMEM; | |
516 | } | |
1da177e4 LT |
517 | decoder->norm = VIDEO_MODE_NTSC; |
518 | decoder->input = 0; | |
519 | decoder->enable = 1; | |
1da177e4 LT |
520 | i2c_set_clientdata(client, decoder); |
521 | ||
522 | i = i2c_attach_client(client); | |
523 | if (i) { | |
524 | kfree(client); | |
525 | kfree(decoder); | |
526 | return i; | |
527 | } | |
528 | ||
529 | vdi.data = saa7111_i2c_init; | |
530 | vdi.len = sizeof(saa7111_i2c_init); | |
531 | i = saa7111_init_decoder(client, &vdi); | |
532 | if (i < 0) { | |
533 | dprintk(1, KERN_ERR "%s_attach error: init status %d\n", | |
534 | I2C_NAME(client), i); | |
535 | } else { | |
536 | dprintk(1, | |
537 | KERN_INFO | |
538 | "%s_attach: chip version %x at address 0x%x\n", | |
539 | I2C_NAME(client), saa7111_read(client, 0x00) >> 4, | |
540 | client->addr << 1); | |
541 | } | |
542 | ||
543 | return 0; | |
544 | } | |
545 | ||
546 | static int | |
547 | saa7111_attach_adapter (struct i2c_adapter *adapter) | |
548 | { | |
549 | dprintk(1, | |
550 | KERN_INFO | |
551 | "saa7111.c: starting probe for adapter %s (0x%x)\n", | |
552 | I2C_NAME(adapter), adapter->id); | |
553 | return i2c_probe(adapter, &addr_data, &saa7111_detect_client); | |
554 | } | |
555 | ||
556 | static int | |
557 | saa7111_detach_client (struct i2c_client *client) | |
558 | { | |
559 | struct saa7111 *decoder = i2c_get_clientdata(client); | |
560 | int err; | |
561 | ||
562 | err = i2c_detach_client(client); | |
563 | if (err) { | |
564 | return err; | |
565 | } | |
566 | ||
567 | kfree(decoder); | |
568 | kfree(client); | |
569 | ||
570 | return 0; | |
571 | } | |
572 | ||
573 | /* ----------------------------------------------------------------------- */ | |
574 | ||
575 | static struct i2c_driver i2c_driver_saa7111 = { | |
604f28e2 | 576 | .driver = { |
604f28e2 LR |
577 | .name = "saa7111", |
578 | }, | |
1da177e4 LT |
579 | |
580 | .id = I2C_DRIVERID_SAA7111A, | |
1da177e4 LT |
581 | |
582 | .attach_adapter = saa7111_attach_adapter, | |
583 | .detach_client = saa7111_detach_client, | |
584 | .command = saa7111_command, | |
585 | }; | |
586 | ||
587 | static int __init | |
588 | saa7111_init (void) | |
589 | { | |
590 | return i2c_add_driver(&i2c_driver_saa7111); | |
591 | } | |
592 | ||
593 | static void __exit | |
594 | saa7111_exit (void) | |
595 | { | |
596 | i2c_del_driver(&i2c_driver_saa7111); | |
597 | } | |
598 | ||
599 | module_init(saa7111_init); | |
600 | module_exit(saa7111_exit); |