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Commit | Line | Data |
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d203a7ec RB |
1 | /* |
2 | * saa7191.c - Philips SAA7191 video decoder driver | |
3 | * | |
4 | * Copyright (C) 2003 Ladislav Michl <ladis@linux-mips.org> | |
5 | * Copyright (C) 2004,2005 Mikael Nousiainen <tmnousia@cc.hut.fi> | |
6 | * | |
7 | * This program is free software; you can redistribute it and/or modify | |
8 | * it under the terms of the GNU General Public License version 2 as | |
9 | * published by the Free Software Foundation. | |
10 | */ | |
11 | ||
d203a7ec RB |
12 | #include <linux/delay.h> |
13 | #include <linux/errno.h> | |
14 | #include <linux/fs.h> | |
495515b3 | 15 | #include <linux/init.h> |
d203a7ec RB |
16 | #include <linux/kernel.h> |
17 | #include <linux/major.h> | |
495515b3 | 18 | #include <linux/module.h> |
d203a7ec | 19 | #include <linux/mm.h> |
495515b3 | 20 | #include <linux/slab.h> |
d203a7ec RB |
21 | |
22 | #include <linux/videodev.h> | |
23 | #include <linux/video_decoder.h> | |
24 | #include <linux/i2c.h> | |
25 | ||
26 | #include "saa7191.h" | |
27 | ||
a637a114 | 28 | #define SAA7191_MODULE_VERSION "0.0.5" |
d203a7ec RB |
29 | |
30 | MODULE_DESCRIPTION("Philips SAA7191 video decoder driver"); | |
31 | MODULE_VERSION(SAA7191_MODULE_VERSION); | |
32 | MODULE_AUTHOR("Mikael Nousiainen <tmnousia@cc.hut.fi>"); | |
33 | MODULE_LICENSE("GPL"); | |
34 | ||
a637a114 LM |
35 | // #define SAA7191_DEBUG |
36 | ||
37 | #ifdef SAA7191_DEBUG | |
38 | #define dprintk(x...) printk("SAA7191: " x); | |
39 | #else | |
40 | #define dprintk(x...) | |
41 | #endif | |
42 | ||
43 | #define SAA7191_SYNC_COUNT 30 | |
44 | #define SAA7191_SYNC_DELAY 100 /* milliseconds */ | |
45 | ||
d203a7ec RB |
46 | struct saa7191 { |
47 | struct i2c_client *client; | |
48 | ||
49 | /* the register values are stored here as the actual | |
50 | * I2C-registers are write-only */ | |
a637a114 | 51 | u8 reg[25]; |
d203a7ec | 52 | |
a637a114 LM |
53 | int input; |
54 | int norm; | |
d203a7ec RB |
55 | }; |
56 | ||
57 | static struct i2c_driver i2c_driver_saa7191; | |
58 | ||
a637a114 | 59 | static const u8 initseq[] = { |
d203a7ec | 60 | 0, /* Subaddress */ |
a637a114 LM |
61 | |
62 | 0x50, /* (0x50) SAA7191_REG_IDEL */ | |
63 | ||
64 | /* 50 Hz signal timing */ | |
65 | 0x30, /* (0x30) SAA7191_REG_HSYB */ | |
66 | 0x00, /* (0x00) SAA7191_REG_HSYS */ | |
67 | 0xe8, /* (0xe8) SAA7191_REG_HCLB */ | |
68 | 0xb6, /* (0xb6) SAA7191_REG_HCLS */ | |
69 | 0xf4, /* (0xf4) SAA7191_REG_HPHI */ | |
70 | ||
71 | /* control */ | |
72 | SAA7191_LUMA_APER_1, /* (0x01) SAA7191_REG_LUMA - CVBS mode */ | |
73 | 0x00, /* (0x00) SAA7191_REG_HUEC */ | |
74 | 0xf8, /* (0xf8) SAA7191_REG_CKTQ */ | |
75 | 0xf8, /* (0xf8) SAA7191_REG_CKTS */ | |
76 | 0x90, /* (0x90) SAA7191_REG_PLSE */ | |
77 | 0x90, /* (0x90) SAA7191_REG_SESE */ | |
78 | 0x00, /* (0x00) SAA7191_REG_GAIN */ | |
79 | SAA7191_STDC_NFEN | SAA7191_STDC_HRMV, /* (0x0c) SAA7191_REG_STDC | |
80 | * - not SECAM, | |
81 | * slow time constant */ | |
82 | SAA7191_IOCK_OEDC | SAA7191_IOCK_OEHS | SAA7191_IOCK_OEVS | |
83 | | SAA7191_IOCK_OEDY, /* (0x78) SAA7191_REG_IOCK | |
84 | * - chroma from CVBS, GPSW1 & 2 off */ | |
85 | SAA7191_CTL3_AUFD | SAA7191_CTL3_SCEN | SAA7191_CTL3_OFTS | |
86 | | SAA7191_CTL3_YDEL0, /* (0x99) SAA7191_REG_CTL3 | |
87 | * - automatic field detection */ | |
88 | 0x00, /* (0x00) SAA7191_REG_CTL4 */ | |
89 | 0x2c, /* (0x2c) SAA7191_REG_CHCV - PAL nominal value */ | |
d203a7ec RB |
90 | 0x00, /* unused */ |
91 | 0x00, /* unused */ | |
a637a114 LM |
92 | |
93 | /* 60 Hz signal timing */ | |
94 | 0x34, /* (0x34) SAA7191_REG_HS6B */ | |
95 | 0x0a, /* (0x0a) SAA7191_REG_HS6S */ | |
96 | 0xf4, /* (0xf4) SAA7191_REG_HC6B */ | |
97 | 0xce, /* (0xce) SAA7191_REG_HC6S */ | |
98 | 0xf4, /* (0xf4) SAA7191_REG_HP6I */ | |
d203a7ec RB |
99 | }; |
100 | ||
101 | /* SAA7191 register handling */ | |
102 | ||
a637a114 LM |
103 | static u8 saa7191_read_reg(struct i2c_client *client, |
104 | u8 reg) | |
d203a7ec RB |
105 | { |
106 | return ((struct saa7191 *)i2c_get_clientdata(client))->reg[reg]; | |
107 | } | |
108 | ||
109 | static int saa7191_read_status(struct i2c_client *client, | |
a637a114 | 110 | u8 *value) |
d203a7ec RB |
111 | { |
112 | int ret; | |
113 | ||
114 | ret = i2c_master_recv(client, value, 1); | |
115 | if (ret < 0) { | |
a637a114 | 116 | printk(KERN_ERR "SAA7191: saa7191_read_status(): read failed\n"); |
d203a7ec RB |
117 | return ret; |
118 | } | |
119 | ||
120 | return 0; | |
121 | } | |
122 | ||
123 | ||
a637a114 LM |
124 | static int saa7191_write_reg(struct i2c_client *client, u8 reg, |
125 | u8 value) | |
d203a7ec | 126 | { |
d203a7ec RB |
127 | ((struct saa7191 *)i2c_get_clientdata(client))->reg[reg] = value; |
128 | return i2c_smbus_write_byte_data(client, reg, value); | |
129 | } | |
130 | ||
131 | /* the first byte of data must be the first subaddress number (register) */ | |
132 | static int saa7191_write_block(struct i2c_client *client, | |
f5ab272b | 133 | u8 length, const u8 *data) |
d203a7ec RB |
134 | { |
135 | int i; | |
136 | int ret; | |
137 | ||
138 | struct saa7191 *decoder = (struct saa7191 *)i2c_get_clientdata(client); | |
139 | for (i = 0; i < (length - 1); i++) { | |
140 | decoder->reg[data[0] + i] = data[i + 1]; | |
141 | } | |
142 | ||
143 | ret = i2c_master_send(client, data, length); | |
144 | if (ret < 0) { | |
145 | printk(KERN_ERR "SAA7191: saa7191_write_block(): " | |
a637a114 | 146 | "write failed\n"); |
d203a7ec RB |
147 | return ret; |
148 | } | |
149 | ||
150 | return 0; | |
151 | } | |
152 | ||
153 | /* Helper functions */ | |
154 | ||
155 | static int saa7191_set_input(struct i2c_client *client, int input) | |
156 | { | |
a637a114 LM |
157 | struct saa7191 *decoder = i2c_get_clientdata(client); |
158 | u8 luma = saa7191_read_reg(client, SAA7191_REG_LUMA); | |
159 | u8 iock = saa7191_read_reg(client, SAA7191_REG_IOCK); | |
d203a7ec RB |
160 | int err; |
161 | ||
162 | switch (input) { | |
163 | case SAA7191_INPUT_COMPOSITE: /* Set Composite input */ | |
164 | iock &= ~(SAA7191_IOCK_CHRS | SAA7191_IOCK_GPSW1 | |
165 | | SAA7191_IOCK_GPSW2); | |
166 | /* Chrominance trap active */ | |
167 | luma &= ~SAA7191_LUMA_BYPS; | |
168 | break; | |
169 | case SAA7191_INPUT_SVIDEO: /* Set S-Video input */ | |
170 | iock |= SAA7191_IOCK_CHRS | SAA7191_IOCK_GPSW2; | |
171 | /* Chrominance trap bypassed */ | |
172 | luma |= SAA7191_LUMA_BYPS; | |
173 | break; | |
174 | default: | |
175 | return -EINVAL; | |
176 | } | |
177 | ||
178 | err = saa7191_write_reg(client, SAA7191_REG_LUMA, luma); | |
179 | if (err) | |
180 | return -EIO; | |
181 | err = saa7191_write_reg(client, SAA7191_REG_IOCK, iock); | |
182 | if (err) | |
183 | return -EIO; | |
184 | ||
a637a114 LM |
185 | decoder->input = input; |
186 | ||
d203a7ec RB |
187 | return 0; |
188 | } | |
189 | ||
190 | static int saa7191_set_norm(struct i2c_client *client, int norm) | |
191 | { | |
192 | struct saa7191 *decoder = i2c_get_clientdata(client); | |
a637a114 LM |
193 | u8 stdc = saa7191_read_reg(client, SAA7191_REG_STDC); |
194 | u8 ctl3 = saa7191_read_reg(client, SAA7191_REG_CTL3); | |
195 | u8 chcv = saa7191_read_reg(client, SAA7191_REG_CHCV); | |
d203a7ec RB |
196 | int err; |
197 | ||
198 | switch(norm) { | |
d203a7ec RB |
199 | case SAA7191_NORM_PAL: |
200 | stdc &= ~SAA7191_STDC_SECS; | |
201 | ctl3 &= ~(SAA7191_CTL3_AUFD | SAA7191_CTL3_FSEL); | |
202 | chcv = SAA7191_CHCV_PAL; | |
203 | break; | |
204 | case SAA7191_NORM_NTSC: | |
205 | stdc &= ~SAA7191_STDC_SECS; | |
206 | ctl3 &= ~SAA7191_CTL3_AUFD; | |
207 | ctl3 |= SAA7191_CTL3_FSEL; | |
208 | chcv = SAA7191_CHCV_NTSC; | |
209 | break; | |
210 | case SAA7191_NORM_SECAM: | |
211 | stdc |= SAA7191_STDC_SECS; | |
212 | ctl3 &= ~(SAA7191_CTL3_AUFD | SAA7191_CTL3_FSEL); | |
213 | chcv = SAA7191_CHCV_PAL; | |
214 | break; | |
215 | default: | |
216 | return -EINVAL; | |
217 | } | |
218 | ||
219 | err = saa7191_write_reg(client, SAA7191_REG_CTL3, ctl3); | |
220 | if (err) | |
221 | return -EIO; | |
222 | err = saa7191_write_reg(client, SAA7191_REG_STDC, stdc); | |
223 | if (err) | |
224 | return -EIO; | |
225 | err = saa7191_write_reg(client, SAA7191_REG_CHCV, chcv); | |
226 | if (err) | |
227 | return -EIO; | |
228 | ||
229 | decoder->norm = norm; | |
230 | ||
a637a114 LM |
231 | dprintk("ctl3: %02x stdc: %02x chcv: %02x\n", ctl3, |
232 | stdc, chcv); | |
233 | dprintk("norm: %d\n", norm); | |
234 | ||
d203a7ec RB |
235 | return 0; |
236 | } | |
237 | ||
a637a114 | 238 | static int saa7191_wait_for_signal(struct i2c_client *client, u8 *status) |
d203a7ec | 239 | { |
a637a114 | 240 | int i = 0; |
d203a7ec | 241 | |
a637a114 LM |
242 | dprintk("Checking for signal...\n"); |
243 | ||
244 | for (i = 0; i < SAA7191_SYNC_COUNT; i++) { | |
245 | if (saa7191_read_status(client, status)) | |
246 | return -EIO; | |
247 | ||
248 | if (((*status) & SAA7191_STATUS_HLCK) == 0) { | |
249 | dprintk("Signal found\n"); | |
250 | return 0; | |
251 | } | |
252 | ||
253 | msleep(SAA7191_SYNC_DELAY); | |
d203a7ec | 254 | } |
d203a7ec | 255 | |
a637a114 | 256 | dprintk("No signal\n"); |
d203a7ec | 257 | |
a637a114 | 258 | return -EBUSY; |
d203a7ec RB |
259 | } |
260 | ||
a637a114 | 261 | static int saa7191_autodetect_norm_extended(struct i2c_client *client) |
d203a7ec | 262 | { |
a637a114 LM |
263 | u8 stdc = saa7191_read_reg(client, SAA7191_REG_STDC); |
264 | u8 ctl3 = saa7191_read_reg(client, SAA7191_REG_CTL3); | |
265 | u8 status; | |
266 | int err = 0; | |
d203a7ec | 267 | |
a637a114 LM |
268 | dprintk("SAA7191 extended signal auto-detection...\n"); |
269 | ||
270 | stdc &= ~SAA7191_STDC_SECS; | |
271 | ctl3 &= ~(SAA7191_CTL3_FSEL); | |
272 | ||
273 | err = saa7191_write_reg(client, SAA7191_REG_STDC, stdc); | |
274 | if (err) { | |
275 | err = -EIO; | |
276 | goto out; | |
277 | } | |
278 | err = saa7191_write_reg(client, SAA7191_REG_CTL3, ctl3); | |
279 | if (err) { | |
280 | err = -EIO; | |
281 | goto out; | |
282 | } | |
283 | ||
284 | ctl3 |= SAA7191_CTL3_AUFD; | |
285 | err = saa7191_write_reg(client, SAA7191_REG_CTL3, ctl3); | |
286 | if (err) { | |
287 | err = -EIO; | |
288 | goto out; | |
289 | } | |
290 | ||
291 | msleep(SAA7191_SYNC_DELAY); | |
292 | ||
293 | err = saa7191_wait_for_signal(client, &status); | |
294 | if (err) | |
295 | goto out; | |
296 | ||
297 | if (status & SAA7191_STATUS_FIDT) { | |
298 | /* 60Hz signal -> NTSC */ | |
299 | dprintk("60Hz signal: NTSC\n"); | |
300 | return saa7191_set_norm(client, SAA7191_NORM_NTSC); | |
301 | } | |
302 | ||
303 | /* 50Hz signal */ | |
304 | dprintk("50Hz signal: Trying PAL...\n"); | |
305 | ||
306 | /* try PAL first */ | |
307 | err = saa7191_set_norm(client, SAA7191_NORM_PAL); | |
308 | if (err) | |
309 | goto out; | |
310 | ||
311 | msleep(SAA7191_SYNC_DELAY); | |
312 | ||
313 | err = saa7191_wait_for_signal(client, &status); | |
314 | if (err) | |
315 | goto out; | |
316 | ||
317 | /* not 50Hz ? */ | |
318 | if (status & SAA7191_STATUS_FIDT) { | |
319 | dprintk("No 50Hz signal\n"); | |
320 | err = -EAGAIN; | |
321 | goto out; | |
322 | } | |
323 | ||
324 | if (status & SAA7191_STATUS_CODE) { | |
325 | dprintk("PAL\n"); | |
326 | return 0; | |
327 | } | |
328 | ||
329 | dprintk("No color detected with PAL - Trying SECAM...\n"); | |
330 | ||
331 | /* no color detected ? -> try SECAM */ | |
332 | err = saa7191_set_norm(client, | |
333 | SAA7191_NORM_SECAM); | |
334 | if (err) | |
335 | goto out; | |
336 | ||
337 | msleep(SAA7191_SYNC_DELAY); | |
338 | ||
339 | err = saa7191_wait_for_signal(client, &status); | |
340 | if (err) | |
341 | goto out; | |
342 | ||
343 | /* not 50Hz ? */ | |
344 | if (status & SAA7191_STATUS_FIDT) { | |
345 | dprintk("No 50Hz signal\n"); | |
346 | err = -EAGAIN; | |
347 | goto out; | |
348 | } | |
349 | ||
350 | if (status & SAA7191_STATUS_CODE) { | |
351 | /* Color detected -> SECAM */ | |
352 | dprintk("SECAM\n"); | |
353 | return 0; | |
354 | } | |
355 | ||
356 | dprintk("No color detected with SECAM - Going back to PAL.\n"); | |
357 | ||
358 | /* still no color detected ? | |
359 | * -> set norm back to PAL */ | |
360 | err = saa7191_set_norm(client, | |
361 | SAA7191_NORM_PAL); | |
362 | if (err) | |
363 | goto out; | |
364 | ||
365 | out: | |
366 | ctl3 = saa7191_read_reg(client, SAA7191_REG_CTL3); | |
367 | if (ctl3 & SAA7191_CTL3_AUFD) { | |
368 | ctl3 &= ~(SAA7191_CTL3_AUFD); | |
369 | err = saa7191_write_reg(client, SAA7191_REG_CTL3, ctl3); | |
370 | if (err) { | |
371 | err = -EIO; | |
d203a7ec | 372 | } |
d203a7ec | 373 | } |
d203a7ec | 374 | |
a637a114 LM |
375 | return err; |
376 | } | |
377 | ||
378 | static int saa7191_autodetect_norm(struct i2c_client *client) | |
379 | { | |
380 | u8 status; | |
381 | ||
382 | dprintk("SAA7191 signal auto-detection...\n"); | |
383 | ||
384 | dprintk("Reading status...\n"); | |
385 | ||
386 | if (saa7191_read_status(client, &status)) | |
387 | return -EIO; | |
388 | ||
389 | dprintk("Checking for signal...\n"); | |
390 | ||
391 | /* no signal ? */ | |
392 | if (status & SAA7191_STATUS_HLCK) { | |
393 | dprintk("No signal\n"); | |
394 | return -EBUSY; | |
395 | } | |
396 | ||
397 | dprintk("Signal found\n"); | |
398 | ||
399 | if (status & SAA7191_STATUS_FIDT) { | |
400 | /* 60hz signal -> NTSC */ | |
401 | dprintk("NTSC\n"); | |
402 | return saa7191_set_norm(client, SAA7191_NORM_NTSC); | |
403 | } else { | |
404 | /* 50hz signal -> PAL */ | |
405 | dprintk("PAL\n"); | |
406 | return saa7191_set_norm(client, SAA7191_NORM_PAL); | |
407 | } | |
408 | } | |
409 | ||
410 | static int saa7191_get_control(struct i2c_client *client, | |
411 | struct saa7191_control *ctrl) | |
412 | { | |
413 | u8 reg; | |
414 | int ret = 0; | |
415 | ||
416 | switch (ctrl->type) { | |
417 | case SAA7191_CONTROL_BANDPASS: | |
418 | case SAA7191_CONTROL_BANDPASS_WEIGHT: | |
419 | case SAA7191_CONTROL_CORING: | |
420 | reg = saa7191_read_reg(client, SAA7191_REG_LUMA); | |
421 | switch (ctrl->type) { | |
422 | case SAA7191_CONTROL_BANDPASS: | |
423 | ctrl->value = ((s32)reg & SAA7191_LUMA_BPSS_MASK) | |
424 | >> SAA7191_LUMA_BPSS_SHIFT; | |
425 | break; | |
426 | case SAA7191_CONTROL_BANDPASS_WEIGHT: | |
427 | ctrl->value = ((s32)reg & SAA7191_LUMA_APER_MASK) | |
428 | >> SAA7191_LUMA_APER_SHIFT; | |
429 | break; | |
430 | case SAA7191_CONTROL_CORING: | |
431 | ctrl->value = ((s32)reg & SAA7191_LUMA_CORI_MASK) | |
432 | >> SAA7191_LUMA_CORI_SHIFT; | |
433 | break; | |
d203a7ec | 434 | } |
a637a114 LM |
435 | break; |
436 | case SAA7191_CONTROL_FORCE_COLOUR: | |
437 | case SAA7191_CONTROL_CHROMA_GAIN: | |
438 | reg = saa7191_read_reg(client, SAA7191_REG_GAIN); | |
439 | if (ctrl->type == SAA7191_CONTROL_FORCE_COLOUR) | |
440 | ctrl->value = ((s32)reg & SAA7191_GAIN_COLO) ? 1 : 0; | |
441 | else | |
442 | ctrl->value = ((s32)reg & SAA7191_GAIN_LFIS_MASK) | |
443 | >> SAA7191_GAIN_LFIS_SHIFT; | |
444 | break; | |
445 | case SAA7191_CONTROL_HUE: | |
446 | reg = saa7191_read_reg(client, SAA7191_REG_HUEC); | |
447 | if (reg < 0x80) | |
448 | reg += 0x80; | |
449 | else | |
450 | reg -= 0x80; | |
451 | ctrl->value = (s32)reg; | |
452 | break; | |
453 | case SAA7191_CONTROL_VTRC: | |
454 | reg = saa7191_read_reg(client, SAA7191_REG_STDC); | |
455 | ctrl->value = ((s32)reg & SAA7191_STDC_VTRC) ? 1 : 0; | |
456 | break; | |
457 | case SAA7191_CONTROL_LUMA_DELAY: | |
458 | reg = saa7191_read_reg(client, SAA7191_REG_CTL3); | |
459 | ctrl->value = ((s32)reg & SAA7191_CTL3_YDEL_MASK) | |
460 | >> SAA7191_CTL3_YDEL_SHIFT; | |
461 | if (ctrl->value >= 4) | |
462 | ctrl->value -= 8; | |
463 | break; | |
464 | case SAA7191_CONTROL_VNR: | |
465 | reg = saa7191_read_reg(client, SAA7191_REG_CTL4); | |
466 | ctrl->value = ((s32)reg & SAA7191_CTL4_VNOI_MASK) | |
467 | >> SAA7191_CTL4_VNOI_SHIFT; | |
468 | break; | |
469 | default: | |
470 | ret = -EINVAL; | |
471 | } | |
d203a7ec | 472 | |
a637a114 LM |
473 | return ret; |
474 | } | |
475 | ||
476 | static int saa7191_set_control(struct i2c_client *client, | |
477 | struct saa7191_control *ctrl) | |
478 | { | |
479 | u8 reg; | |
480 | int ret = 0; | |
481 | ||
482 | switch (ctrl->type) { | |
483 | case SAA7191_CONTROL_BANDPASS: | |
484 | case SAA7191_CONTROL_BANDPASS_WEIGHT: | |
485 | case SAA7191_CONTROL_CORING: | |
486 | reg = saa7191_read_reg(client, SAA7191_REG_LUMA); | |
487 | switch (ctrl->type) { | |
488 | case SAA7191_CONTROL_BANDPASS: | |
489 | reg &= ~SAA7191_LUMA_BPSS_MASK; | |
490 | reg |= (ctrl->value << SAA7191_LUMA_BPSS_SHIFT) | |
491 | & SAA7191_LUMA_BPSS_MASK; | |
492 | break; | |
493 | case SAA7191_CONTROL_BANDPASS_WEIGHT: | |
494 | reg &= ~SAA7191_LUMA_APER_MASK; | |
495 | reg |= (ctrl->value << SAA7191_LUMA_APER_SHIFT) | |
496 | & SAA7191_LUMA_APER_MASK; | |
497 | break; | |
498 | case SAA7191_CONTROL_CORING: | |
499 | reg &= ~SAA7191_LUMA_CORI_MASK; | |
500 | reg |= (ctrl->value << SAA7191_LUMA_CORI_SHIFT) | |
501 | & SAA7191_LUMA_CORI_MASK; | |
502 | break; | |
503 | } | |
504 | ret = saa7191_write_reg(client, SAA7191_REG_LUMA, reg); | |
505 | break; | |
506 | case SAA7191_CONTROL_FORCE_COLOUR: | |
507 | case SAA7191_CONTROL_CHROMA_GAIN: | |
508 | reg = saa7191_read_reg(client, SAA7191_REG_GAIN); | |
509 | if (ctrl->type == SAA7191_CONTROL_FORCE_COLOUR) { | |
510 | if (ctrl->value) | |
511 | reg |= SAA7191_GAIN_COLO; | |
512 | else | |
513 | reg &= ~SAA7191_GAIN_COLO; | |
514 | } else { | |
515 | reg &= ~SAA7191_GAIN_LFIS_MASK; | |
516 | reg |= (ctrl->value << SAA7191_GAIN_LFIS_SHIFT) | |
517 | & SAA7191_GAIN_LFIS_MASK; | |
518 | } | |
519 | ret = saa7191_write_reg(client, SAA7191_REG_GAIN, reg); | |
520 | break; | |
521 | case SAA7191_CONTROL_HUE: | |
522 | reg = ctrl->value & 0xff; | |
523 | if (reg < 0x80) | |
524 | reg += 0x80; | |
525 | else | |
526 | reg -= 0x80; | |
527 | ret = saa7191_write_reg(client, SAA7191_REG_HUEC, reg); | |
528 | break; | |
529 | case SAA7191_CONTROL_VTRC: | |
530 | reg = saa7191_read_reg(client, SAA7191_REG_STDC); | |
531 | if (ctrl->value) | |
532 | reg |= SAA7191_STDC_VTRC; | |
533 | else | |
534 | reg &= ~SAA7191_STDC_VTRC; | |
535 | ret = saa7191_write_reg(client, SAA7191_REG_STDC, reg); | |
536 | break; | |
537 | case SAA7191_CONTROL_LUMA_DELAY: { | |
538 | s32 value = ctrl->value; | |
539 | if (value < 0) | |
540 | value += 8; | |
541 | reg = saa7191_read_reg(client, SAA7191_REG_CTL3); | |
542 | reg &= ~SAA7191_CTL3_YDEL_MASK; | |
543 | reg |= (value << SAA7191_CTL3_YDEL_SHIFT) | |
544 | & SAA7191_CTL3_YDEL_MASK; | |
545 | ret = saa7191_write_reg(client, SAA7191_REG_CTL3, reg); | |
546 | break; | |
547 | } | |
548 | case SAA7191_CONTROL_VNR: | |
549 | reg = saa7191_read_reg(client, SAA7191_REG_CTL4); | |
550 | reg &= ~SAA7191_CTL4_VNOI_MASK; | |
551 | reg |= (ctrl->value << SAA7191_CTL4_VNOI_SHIFT) | |
552 | & SAA7191_CTL4_VNOI_MASK; | |
553 | ret = saa7191_write_reg(client, SAA7191_REG_CTL4, reg); | |
554 | break; | |
555 | default: | |
556 | ret = -EINVAL; | |
d203a7ec RB |
557 | } |
558 | ||
a637a114 | 559 | return ret; |
d203a7ec RB |
560 | } |
561 | ||
562 | /* I2C-interface */ | |
563 | ||
564 | static int saa7191_attach(struct i2c_adapter *adap, int addr, int kind) | |
565 | { | |
566 | int err = 0; | |
567 | struct saa7191 *decoder; | |
568 | struct i2c_client *client; | |
569 | ||
570 | printk(KERN_INFO "Philips SAA7191 driver version %s\n", | |
571 | SAA7191_MODULE_VERSION); | |
572 | ||
7408187d | 573 | client = kzalloc(sizeof(*client), GFP_KERNEL); |
d203a7ec RB |
574 | if (!client) |
575 | return -ENOMEM; | |
7408187d | 576 | decoder = kzalloc(sizeof(*decoder), GFP_KERNEL); |
d203a7ec RB |
577 | if (!decoder) { |
578 | err = -ENOMEM; | |
579 | goto out_free_client; | |
580 | } | |
581 | ||
d203a7ec RB |
582 | client->addr = addr; |
583 | client->adapter = adap; | |
584 | client->driver = &i2c_driver_saa7191; | |
585 | client->flags = 0; | |
586 | strcpy(client->name, "saa7191 client"); | |
587 | i2c_set_clientdata(client, decoder); | |
588 | ||
589 | decoder->client = client; | |
590 | ||
591 | err = i2c_attach_client(client); | |
592 | if (err) | |
593 | goto out_free_decoder; | |
594 | ||
f5ab272b | 595 | err = saa7191_write_block(client, sizeof(initseq), initseq); |
d203a7ec RB |
596 | if (err) { |
597 | printk(KERN_ERR "SAA7191 initialization failed\n"); | |
598 | goto out_detach_client; | |
599 | } | |
600 | ||
601 | printk(KERN_INFO "SAA7191 initialized\n"); | |
602 | ||
a637a114 LM |
603 | decoder->input = SAA7191_INPUT_COMPOSITE; |
604 | decoder->norm = SAA7191_NORM_PAL; | |
605 | ||
606 | err = saa7191_autodetect_norm(client); | |
607 | if (err && (err != -EBUSY)) { | |
608 | printk(KERN_ERR "SAA7191: Signal auto-detection failed\n"); | |
609 | } | |
610 | ||
d203a7ec RB |
611 | return 0; |
612 | ||
613 | out_detach_client: | |
614 | i2c_detach_client(client); | |
615 | out_free_decoder: | |
616 | kfree(decoder); | |
617 | out_free_client: | |
618 | kfree(client); | |
619 | return err; | |
620 | } | |
621 | ||
622 | static int saa7191_probe(struct i2c_adapter *adap) | |
623 | { | |
624 | /* Always connected to VINO */ | |
495515b3 | 625 | if (adap->id == I2C_HW_SGI_VINO) |
d203a7ec RB |
626 | return saa7191_attach(adap, SAA7191_ADDR, 0); |
627 | /* Feel free to add probe here :-) */ | |
628 | return -ENODEV; | |
629 | } | |
630 | ||
631 | static int saa7191_detach(struct i2c_client *client) | |
632 | { | |
633 | struct saa7191 *decoder = i2c_get_clientdata(client); | |
634 | ||
635 | i2c_detach_client(client); | |
636 | kfree(decoder); | |
637 | kfree(client); | |
638 | return 0; | |
639 | } | |
640 | ||
641 | static int saa7191_command(struct i2c_client *client, unsigned int cmd, | |
642 | void *arg) | |
643 | { | |
644 | struct saa7191 *decoder = i2c_get_clientdata(client); | |
645 | ||
646 | switch (cmd) { | |
647 | case DECODER_GET_CAPABILITIES: { | |
648 | struct video_decoder_capability *cap = arg; | |
649 | ||
650 | cap->flags = VIDEO_DECODER_PAL | VIDEO_DECODER_NTSC | | |
651 | VIDEO_DECODER_SECAM | VIDEO_DECODER_AUTO; | |
495515b3 | 652 | cap->inputs = (client->adapter->id == I2C_HW_SGI_VINO) ? 2 : 1; |
d203a7ec RB |
653 | cap->outputs = 1; |
654 | break; | |
655 | } | |
656 | case DECODER_GET_STATUS: { | |
657 | int *iarg = arg; | |
a637a114 | 658 | u8 status; |
d203a7ec RB |
659 | int res = 0; |
660 | ||
661 | if (saa7191_read_status(client, &status)) { | |
662 | return -EIO; | |
663 | } | |
664 | if ((status & SAA7191_STATUS_HLCK) == 0) | |
665 | res |= DECODER_STATUS_GOOD; | |
666 | if (status & SAA7191_STATUS_CODE) | |
667 | res |= DECODER_STATUS_COLOR; | |
668 | switch (decoder->norm) { | |
669 | case SAA7191_NORM_NTSC: | |
670 | res |= DECODER_STATUS_NTSC; | |
671 | break; | |
672 | case SAA7191_NORM_PAL: | |
673 | res |= DECODER_STATUS_PAL; | |
674 | break; | |
675 | case SAA7191_NORM_SECAM: | |
676 | res |= DECODER_STATUS_SECAM; | |
677 | break; | |
678 | case SAA7191_NORM_AUTO: | |
679 | default: | |
680 | if (status & SAA7191_STATUS_FIDT) | |
681 | res |= DECODER_STATUS_NTSC; | |
682 | else | |
683 | res |= DECODER_STATUS_PAL; | |
684 | break; | |
685 | } | |
686 | *iarg = res; | |
687 | break; | |
688 | } | |
689 | case DECODER_SET_NORM: { | |
690 | int *iarg = arg; | |
691 | ||
692 | switch (*iarg) { | |
693 | case VIDEO_MODE_AUTO: | |
a637a114 | 694 | return saa7191_autodetect_norm(client); |
d203a7ec RB |
695 | case VIDEO_MODE_PAL: |
696 | return saa7191_set_norm(client, SAA7191_NORM_PAL); | |
697 | case VIDEO_MODE_NTSC: | |
698 | return saa7191_set_norm(client, SAA7191_NORM_NTSC); | |
699 | case VIDEO_MODE_SECAM: | |
700 | return saa7191_set_norm(client, SAA7191_NORM_SECAM); | |
701 | default: | |
702 | return -EINVAL; | |
703 | } | |
704 | break; | |
705 | } | |
706 | case DECODER_SET_INPUT: { | |
707 | int *iarg = arg; | |
708 | ||
709 | switch (client->adapter->id) { | |
495515b3 | 710 | case I2C_HW_SGI_VINO: |
d203a7ec RB |
711 | return saa7191_set_input(client, *iarg); |
712 | default: | |
713 | if (*iarg != 0) | |
714 | return -EINVAL; | |
715 | } | |
716 | break; | |
717 | } | |
718 | case DECODER_SET_OUTPUT: { | |
719 | int *iarg = arg; | |
720 | ||
721 | /* not much choice of outputs */ | |
722 | if (*iarg != 0) | |
723 | return -EINVAL; | |
724 | break; | |
725 | } | |
726 | case DECODER_ENABLE_OUTPUT: { | |
727 | /* Always enabled */ | |
728 | break; | |
729 | } | |
730 | case DECODER_SET_PICTURE: { | |
731 | struct video_picture *pic = arg; | |
732 | unsigned val; | |
733 | int err; | |
734 | ||
735 | val = (pic->hue >> 8) - 0x80; | |
a637a114 | 736 | |
d203a7ec RB |
737 | err = saa7191_write_reg(client, SAA7191_REG_HUEC, val); |
738 | if (err) | |
739 | return -EIO; | |
a637a114 | 740 | |
d203a7ec RB |
741 | break; |
742 | } | |
743 | case DECODER_SAA7191_GET_STATUS: { | |
744 | struct saa7191_status *status = arg; | |
a637a114 | 745 | u8 status_reg; |
d203a7ec RB |
746 | |
747 | if (saa7191_read_status(client, &status_reg)) | |
748 | return -EIO; | |
a637a114 | 749 | |
d203a7ec | 750 | status->signal = ((status_reg & SAA7191_STATUS_HLCK) == 0) |
a637a114 LM |
751 | ? 1 : 0; |
752 | status->signal_60hz = (status_reg & SAA7191_STATUS_FIDT) | |
753 | ? 1 : 0; | |
754 | status->color = (status_reg & SAA7191_STATUS_CODE) ? 1 : 0; | |
d203a7ec RB |
755 | |
756 | status->input = decoder->input; | |
757 | status->norm = decoder->norm; | |
a637a114 LM |
758 | |
759 | break; | |
d203a7ec RB |
760 | } |
761 | case DECODER_SAA7191_SET_NORM: { | |
762 | int *norm = arg; | |
a637a114 LM |
763 | |
764 | switch (*norm) { | |
765 | case SAA7191_NORM_AUTO: | |
766 | return saa7191_autodetect_norm(client); | |
767 | case SAA7191_NORM_AUTO_EXT: | |
768 | return saa7191_autodetect_norm_extended(client); | |
769 | default: | |
770 | return saa7191_set_norm(client, *norm); | |
771 | } | |
d203a7ec | 772 | } |
a637a114 LM |
773 | case DECODER_SAA7191_GET_CONTROL: { |
774 | return saa7191_get_control(client, arg); | |
d203a7ec | 775 | } |
a637a114 LM |
776 | case DECODER_SAA7191_SET_CONTROL: { |
777 | return saa7191_set_control(client, arg); | |
d203a7ec RB |
778 | } |
779 | default: | |
780 | return -EINVAL; | |
781 | } | |
782 | ||
783 | return 0; | |
784 | } | |
785 | ||
786 | static struct i2c_driver i2c_driver_saa7191 = { | |
604f28e2 | 787 | .driver = { |
604f28e2 LR |
788 | .name = "saa7191", |
789 | }, | |
a637a114 | 790 | .id = I2C_DRIVERID_SAA7191, |
d203a7ec | 791 | .attach_adapter = saa7191_probe, |
a637a114 LM |
792 | .detach_client = saa7191_detach, |
793 | .command = saa7191_command | |
d203a7ec RB |
794 | }; |
795 | ||
796 | static int saa7191_init(void) | |
797 | { | |
798 | return i2c_add_driver(&i2c_driver_saa7191); | |
799 | } | |
800 | ||
801 | static void saa7191_exit(void) | |
802 | { | |
803 | i2c_del_driver(&i2c_driver_saa7191); | |
804 | } | |
805 | ||
806 | module_init(saa7191_init); | |
807 | module_exit(saa7191_exit); |