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V4L/DVB (6602): V4L: Convert videobuf drivers to videobuf_stop
[GitHub/mt8127/android_kernel_alcatel_ttab.git] / drivers / media / video / bt8xx / bttv-driver.c
1 /*
2
3 bttv - Bt848 frame grabber driver
4
5 Copyright (C) 1996,97,98 Ralph Metzler <rjkm@thp.uni-koeln.de>
6 & Marcus Metzler <mocm@thp.uni-koeln.de>
7 (c) 1999-2002 Gerd Knorr <kraxel@bytesex.org>
8
9 some v4l2 code lines are taken from Justin's bttv2 driver which is
10 (c) 2000 Justin Schoeman <justin@suntiger.ee.up.ac.za>
11
12 Cropping and overscan support
13 Copyright (C) 2005, 2006 Michael H. Schimek <mschimek@gmx.at>
14 Sponsored by OPQ Systems AB
15
16 This program is free software; you can redistribute it and/or modify
17 it under the terms of the GNU General Public License as published by
18 the Free Software Foundation; either version 2 of the License, or
19 (at your option) any later version.
20
21 This program is distributed in the hope that it will be useful,
22 but WITHOUT ANY WARRANTY; without even the implied warranty of
23 MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
24 GNU General Public License for more details.
25
26 You should have received a copy of the GNU General Public License
27 along with this program; if not, write to the Free Software
28 Foundation, Inc., 675 Mass Ave, Cambridge, MA 02139, USA.
29 */
30
31 #include <linux/init.h>
32 #include <linux/module.h>
33 #include <linux/delay.h>
34 #include <linux/errno.h>
35 #include <linux/fs.h>
36 #include <linux/kernel.h>
37 #include <linux/sched.h>
38 #include <linux/interrupt.h>
39 #include <linux/kdev_t.h>
40 #include "bttvp.h"
41 #include <media/v4l2-common.h>
42 #include <media/tvaudio.h>
43 #include <media/msp3400.h>
44
45 #include <linux/dma-mapping.h>
46
47 #include <asm/io.h>
48 #include <asm/byteorder.h>
49
50 #include <media/rds.h>
51
52
53 unsigned int bttv_num; /* number of Bt848s in use */
54 struct bttv bttvs[BTTV_MAX];
55
56 unsigned int bttv_debug;
57 unsigned int bttv_verbose = 1;
58 unsigned int bttv_gpio;
59
60 /* config variables */
61 #ifdef __BIG_ENDIAN
62 static unsigned int bigendian=1;
63 #else
64 static unsigned int bigendian;
65 #endif
66 static unsigned int radio[BTTV_MAX];
67 static unsigned int irq_debug;
68 static unsigned int gbuffers = 8;
69 static unsigned int gbufsize = 0x208000;
70 static unsigned int reset_crop = 1;
71
72 static int video_nr = -1;
73 static int radio_nr = -1;
74 static int vbi_nr = -1;
75 static int debug_latency;
76
77 static unsigned int fdsr;
78
79 /* options */
80 static unsigned int combfilter;
81 static unsigned int lumafilter;
82 static unsigned int automute = 1;
83 static unsigned int chroma_agc;
84 static unsigned int adc_crush = 1;
85 static unsigned int whitecrush_upper = 0xCF;
86 static unsigned int whitecrush_lower = 0x7F;
87 static unsigned int vcr_hack;
88 static unsigned int irq_iswitch;
89 static unsigned int uv_ratio = 50;
90 static unsigned int full_luma_range;
91 static unsigned int coring;
92 extern int no_overlay;
93
94 /* API features (turn on/off stuff for testing) */
95 static unsigned int v4l2 = 1;
96
97 /* insmod args */
98 module_param(bttv_verbose, int, 0644);
99 module_param(bttv_gpio, int, 0644);
100 module_param(bttv_debug, int, 0644);
101 module_param(irq_debug, int, 0644);
102 module_param(debug_latency, int, 0644);
103
104 module_param(fdsr, int, 0444);
105 module_param(video_nr, int, 0444);
106 module_param(radio_nr, int, 0444);
107 module_param(vbi_nr, int, 0444);
108 module_param(gbuffers, int, 0444);
109 module_param(gbufsize, int, 0444);
110 module_param(reset_crop, int, 0444);
111
112 module_param(v4l2, int, 0644);
113 module_param(bigendian, int, 0644);
114 module_param(irq_iswitch, int, 0644);
115 module_param(combfilter, int, 0444);
116 module_param(lumafilter, int, 0444);
117 module_param(automute, int, 0444);
118 module_param(chroma_agc, int, 0444);
119 module_param(adc_crush, int, 0444);
120 module_param(whitecrush_upper, int, 0444);
121 module_param(whitecrush_lower, int, 0444);
122 module_param(vcr_hack, int, 0444);
123 module_param(uv_ratio, int, 0444);
124 module_param(full_luma_range, int, 0444);
125 module_param(coring, int, 0444);
126
127 module_param_array(radio, int, NULL, 0444);
128
129 MODULE_PARM_DESC(radio,"The TV card supports radio, default is 0 (no)");
130 MODULE_PARM_DESC(bigendian,"byte order of the framebuffer, default is native endian");
131 MODULE_PARM_DESC(bttv_verbose,"verbose startup messages, default is 1 (yes)");
132 MODULE_PARM_DESC(bttv_gpio,"log gpio changes, default is 0 (no)");
133 MODULE_PARM_DESC(bttv_debug,"debug messages, default is 0 (no)");
134 MODULE_PARM_DESC(irq_debug,"irq handler debug messages, default is 0 (no)");
135 MODULE_PARM_DESC(gbuffers,"number of capture buffers. range 2-32, default 8");
136 MODULE_PARM_DESC(gbufsize,"size of the capture buffers, default is 0x208000");
137 MODULE_PARM_DESC(reset_crop,"reset cropping parameters at open(), default "
138 "is 1 (yes) for compatibility with older applications");
139 MODULE_PARM_DESC(automute,"mute audio on bad/missing video signal, default is 1 (yes)");
140 MODULE_PARM_DESC(chroma_agc,"enables the AGC of chroma signal, default is 0 (no)");
141 MODULE_PARM_DESC(adc_crush,"enables the luminance ADC crush, default is 1 (yes)");
142 MODULE_PARM_DESC(whitecrush_upper,"sets the white crush upper value, default is 207");
143 MODULE_PARM_DESC(whitecrush_lower,"sets the white crush lower value, default is 127");
144 MODULE_PARM_DESC(vcr_hack,"enables the VCR hack (improves synch on poor VCR tapes), default is 0 (no)");
145 MODULE_PARM_DESC(irq_iswitch,"switch inputs in irq handler");
146 MODULE_PARM_DESC(uv_ratio,"ratio between u and v gains, default is 50");
147 MODULE_PARM_DESC(full_luma_range,"use the full luma range, default is 0 (no)");
148 MODULE_PARM_DESC(coring,"set the luma coring level, default is 0 (no)");
149
150 MODULE_DESCRIPTION("bttv - v4l/v4l2 driver module for bt848/878 based cards");
151 MODULE_AUTHOR("Ralph Metzler & Marcus Metzler & Gerd Knorr");
152 MODULE_LICENSE("GPL");
153
154 /* ----------------------------------------------------------------------- */
155 /* sysfs */
156
157 static ssize_t show_card(struct device *cd,
158 struct device_attribute *attr, char *buf)
159 {
160 struct video_device *vfd = to_video_device(cd);
161 struct bttv *btv = dev_get_drvdata(vfd->dev);
162 return sprintf(buf, "%d\n", btv ? btv->c.type : UNSET);
163 }
164 static DEVICE_ATTR(card, S_IRUGO, show_card, NULL);
165
166 /* ----------------------------------------------------------------------- */
167 /* dvb auto-load setup */
168 #if defined(CONFIG_MODULES) && defined(MODULE)
169 static void request_module_async(struct work_struct *work)
170 {
171 request_module("dvb-bt8xx");
172 }
173
174 static void request_modules(struct bttv *dev)
175 {
176 INIT_WORK(&dev->request_module_wk, request_module_async);
177 schedule_work(&dev->request_module_wk);
178 }
179 #else
180 #define request_modules(dev)
181 #endif /* CONFIG_MODULES */
182
183
184 /* ----------------------------------------------------------------------- */
185 /* static data */
186
187 /* special timing tables from conexant... */
188 static u8 SRAM_Table[][60] =
189 {
190 /* PAL digital input over GPIO[7:0] */
191 {
192 45, // 45 bytes following
193 0x36,0x11,0x01,0x00,0x90,0x02,0x05,0x10,0x04,0x16,
194 0x12,0x05,0x11,0x00,0x04,0x12,0xC0,0x00,0x31,0x00,
195 0x06,0x51,0x08,0x03,0x89,0x08,0x07,0xC0,0x44,0x00,
196 0x81,0x01,0x01,0xA9,0x0D,0x02,0x02,0x50,0x03,0x37,
197 0x37,0x00,0xAF,0x21,0x00
198 },
199 /* NTSC digital input over GPIO[7:0] */
200 {
201 51, // 51 bytes following
202 0x0C,0xC0,0x00,0x00,0x90,0x02,0x03,0x10,0x03,0x06,
203 0x10,0x04,0x12,0x12,0x05,0x02,0x13,0x04,0x19,0x00,
204 0x04,0x39,0x00,0x06,0x59,0x08,0x03,0x83,0x08,0x07,
205 0x03,0x50,0x00,0xC0,0x40,0x00,0x86,0x01,0x01,0xA6,
206 0x0D,0x02,0x03,0x11,0x01,0x05,0x37,0x00,0xAC,0x21,
207 0x00,
208 },
209 // TGB_NTSC392 // quartzsight
210 // This table has been modified to be used for Fusion Rev D
211 {
212 0x2A, // size of table = 42
213 0x06, 0x08, 0x04, 0x0a, 0xc0, 0x00, 0x18, 0x08, 0x03, 0x24,
214 0x08, 0x07, 0x02, 0x90, 0x02, 0x08, 0x10, 0x04, 0x0c, 0x10,
215 0x05, 0x2c, 0x11, 0x04, 0x55, 0x48, 0x00, 0x05, 0x50, 0x00,
216 0xbf, 0x0c, 0x02, 0x2f, 0x3d, 0x00, 0x2f, 0x3f, 0x00, 0xc3,
217 0x20, 0x00
218 }
219 };
220
221 /* minhdelayx1 first video pixel we can capture on a line and
222 hdelayx1 start of active video, both relative to rising edge of
223 /HRESET pulse (0H) in 1 / fCLKx1.
224 swidth width of active video and
225 totalwidth total line width, both in 1 / fCLKx1.
226 sqwidth total line width in square pixels.
227 vdelay start of active video in 2 * field lines relative to
228 trailing edge of /VRESET pulse (VDELAY register).
229 sheight height of active video in 2 * field lines.
230 videostart0 ITU-R frame line number of the line corresponding
231 to vdelay in the first field. */
232 #define CROPCAP(minhdelayx1, hdelayx1, swidth, totalwidth, sqwidth, \
233 vdelay, sheight, videostart0) \
234 .cropcap.bounds.left = minhdelayx1, \
235 /* * 2 because vertically we count field lines times two, */ \
236 /* e.g. 23 * 2 to 23 * 2 + 576 in PAL-BGHI defrect. */ \
237 .cropcap.bounds.top = (videostart0) * 2 - (vdelay) + MIN_VDELAY, \
238 /* 4 is a safety margin at the end of the line. */ \
239 .cropcap.bounds.width = (totalwidth) - (minhdelayx1) - 4, \
240 .cropcap.bounds.height = (sheight) + (vdelay) - MIN_VDELAY, \
241 .cropcap.defrect.left = hdelayx1, \
242 .cropcap.defrect.top = (videostart0) * 2, \
243 .cropcap.defrect.width = swidth, \
244 .cropcap.defrect.height = sheight, \
245 .cropcap.pixelaspect.numerator = totalwidth, \
246 .cropcap.pixelaspect.denominator = sqwidth,
247
248 const struct bttv_tvnorm bttv_tvnorms[] = {
249 /* PAL-BDGHI */
250 /* max. active video is actually 922, but 924 is divisible by 4 and 3! */
251 /* actually, max active PAL with HSCALE=0 is 948, NTSC is 768 - nil */
252 {
253 .v4l2_id = V4L2_STD_PAL,
254 .name = "PAL",
255 .Fsc = 35468950,
256 .swidth = 924,
257 .sheight = 576,
258 .totalwidth = 1135,
259 .adelay = 0x7f,
260 .bdelay = 0x72,
261 .iform = (BT848_IFORM_PAL_BDGHI|BT848_IFORM_XT1),
262 .scaledtwidth = 1135,
263 .hdelayx1 = 186,
264 .hactivex1 = 924,
265 .vdelay = 0x20,
266 .vbipack = 255, /* min (2048 / 4, 0x1ff) & 0xff */
267 .sram = 0,
268 /* ITU-R frame line number of the first VBI line
269 we can capture, of the first and second field.
270 The last line is determined by cropcap.bounds. */
271 .vbistart = { 7, 320 },
272 CROPCAP(/* minhdelayx1 */ 68,
273 /* hdelayx1 */ 186,
274 /* Should be (768 * 1135 + 944 / 2) / 944.
275 cropcap.defrect is used for image width
276 checks, so we keep the old value 924. */
277 /* swidth */ 924,
278 /* totalwidth */ 1135,
279 /* sqwidth */ 944,
280 /* vdelay */ 0x20,
281 /* sheight */ 576,
282 /* videostart0 */ 23)
283 /* bt878 (and bt848?) can capture another
284 line below active video. */
285 .cropcap.bounds.height = (576 + 2) + 0x20 - 2,
286 },{
287 .v4l2_id = V4L2_STD_NTSC_M | V4L2_STD_NTSC_M_KR,
288 .name = "NTSC",
289 .Fsc = 28636363,
290 .swidth = 768,
291 .sheight = 480,
292 .totalwidth = 910,
293 .adelay = 0x68,
294 .bdelay = 0x5d,
295 .iform = (BT848_IFORM_NTSC|BT848_IFORM_XT0),
296 .scaledtwidth = 910,
297 .hdelayx1 = 128,
298 .hactivex1 = 910,
299 .vdelay = 0x1a,
300 .vbipack = 144, /* min (1600 / 4, 0x1ff) & 0xff */
301 .sram = 1,
302 .vbistart = { 10, 273 },
303 CROPCAP(/* minhdelayx1 */ 68,
304 /* hdelayx1 */ 128,
305 /* Should be (640 * 910 + 780 / 2) / 780? */
306 /* swidth */ 768,
307 /* totalwidth */ 910,
308 /* sqwidth */ 780,
309 /* vdelay */ 0x1a,
310 /* sheight */ 480,
311 /* videostart0 */ 23)
312 },{
313 .v4l2_id = V4L2_STD_SECAM,
314 .name = "SECAM",
315 .Fsc = 35468950,
316 .swidth = 924,
317 .sheight = 576,
318 .totalwidth = 1135,
319 .adelay = 0x7f,
320 .bdelay = 0xb0,
321 .iform = (BT848_IFORM_SECAM|BT848_IFORM_XT1),
322 .scaledtwidth = 1135,
323 .hdelayx1 = 186,
324 .hactivex1 = 922,
325 .vdelay = 0x20,
326 .vbipack = 255,
327 .sram = 0, /* like PAL, correct? */
328 .vbistart = { 7, 320 },
329 CROPCAP(/* minhdelayx1 */ 68,
330 /* hdelayx1 */ 186,
331 /* swidth */ 924,
332 /* totalwidth */ 1135,
333 /* sqwidth */ 944,
334 /* vdelay */ 0x20,
335 /* sheight */ 576,
336 /* videostart0 */ 23)
337 },{
338 .v4l2_id = V4L2_STD_PAL_Nc,
339 .name = "PAL-Nc",
340 .Fsc = 28636363,
341 .swidth = 640,
342 .sheight = 576,
343 .totalwidth = 910,
344 .adelay = 0x68,
345 .bdelay = 0x5d,
346 .iform = (BT848_IFORM_PAL_NC|BT848_IFORM_XT0),
347 .scaledtwidth = 780,
348 .hdelayx1 = 130,
349 .hactivex1 = 734,
350 .vdelay = 0x1a,
351 .vbipack = 144,
352 .sram = -1,
353 .vbistart = { 7, 320 },
354 CROPCAP(/* minhdelayx1 */ 68,
355 /* hdelayx1 */ 130,
356 /* swidth */ (640 * 910 + 780 / 2) / 780,
357 /* totalwidth */ 910,
358 /* sqwidth */ 780,
359 /* vdelay */ 0x1a,
360 /* sheight */ 576,
361 /* videostart0 */ 23)
362 },{
363 .v4l2_id = V4L2_STD_PAL_M,
364 .name = "PAL-M",
365 .Fsc = 28636363,
366 .swidth = 640,
367 .sheight = 480,
368 .totalwidth = 910,
369 .adelay = 0x68,
370 .bdelay = 0x5d,
371 .iform = (BT848_IFORM_PAL_M|BT848_IFORM_XT0),
372 .scaledtwidth = 780,
373 .hdelayx1 = 135,
374 .hactivex1 = 754,
375 .vdelay = 0x1a,
376 .vbipack = 144,
377 .sram = -1,
378 .vbistart = { 10, 273 },
379 CROPCAP(/* minhdelayx1 */ 68,
380 /* hdelayx1 */ 135,
381 /* swidth */ (640 * 910 + 780 / 2) / 780,
382 /* totalwidth */ 910,
383 /* sqwidth */ 780,
384 /* vdelay */ 0x1a,
385 /* sheight */ 480,
386 /* videostart0 */ 23)
387 },{
388 .v4l2_id = V4L2_STD_PAL_N,
389 .name = "PAL-N",
390 .Fsc = 35468950,
391 .swidth = 768,
392 .sheight = 576,
393 .totalwidth = 1135,
394 .adelay = 0x7f,
395 .bdelay = 0x72,
396 .iform = (BT848_IFORM_PAL_N|BT848_IFORM_XT1),
397 .scaledtwidth = 944,
398 .hdelayx1 = 186,
399 .hactivex1 = 922,
400 .vdelay = 0x20,
401 .vbipack = 144,
402 .sram = -1,
403 .vbistart = { 7, 320 },
404 CROPCAP(/* minhdelayx1 */ 68,
405 /* hdelayx1 */ 186,
406 /* swidth */ (768 * 1135 + 944 / 2) / 944,
407 /* totalwidth */ 1135,
408 /* sqwidth */ 944,
409 /* vdelay */ 0x20,
410 /* sheight */ 576,
411 /* videostart0 */ 23)
412 },{
413 .v4l2_id = V4L2_STD_NTSC_M_JP,
414 .name = "NTSC-JP",
415 .Fsc = 28636363,
416 .swidth = 640,
417 .sheight = 480,
418 .totalwidth = 910,
419 .adelay = 0x68,
420 .bdelay = 0x5d,
421 .iform = (BT848_IFORM_NTSC_J|BT848_IFORM_XT0),
422 .scaledtwidth = 780,
423 .hdelayx1 = 135,
424 .hactivex1 = 754,
425 .vdelay = 0x16,
426 .vbipack = 144,
427 .sram = -1,
428 .vbistart = { 10, 273 },
429 CROPCAP(/* minhdelayx1 */ 68,
430 /* hdelayx1 */ 135,
431 /* swidth */ (640 * 910 + 780 / 2) / 780,
432 /* totalwidth */ 910,
433 /* sqwidth */ 780,
434 /* vdelay */ 0x16,
435 /* sheight */ 480,
436 /* videostart0 */ 23)
437 },{
438 /* that one hopefully works with the strange timing
439 * which video recorders produce when playing a NTSC
440 * tape on a PAL TV ... */
441 .v4l2_id = V4L2_STD_PAL_60,
442 .name = "PAL-60",
443 .Fsc = 35468950,
444 .swidth = 924,
445 .sheight = 480,
446 .totalwidth = 1135,
447 .adelay = 0x7f,
448 .bdelay = 0x72,
449 .iform = (BT848_IFORM_PAL_BDGHI|BT848_IFORM_XT1),
450 .scaledtwidth = 1135,
451 .hdelayx1 = 186,
452 .hactivex1 = 924,
453 .vdelay = 0x1a,
454 .vbipack = 255,
455 .vtotal = 524,
456 .sram = -1,
457 .vbistart = { 10, 273 },
458 CROPCAP(/* minhdelayx1 */ 68,
459 /* hdelayx1 */ 186,
460 /* swidth */ 924,
461 /* totalwidth */ 1135,
462 /* sqwidth */ 944,
463 /* vdelay */ 0x1a,
464 /* sheight */ 480,
465 /* videostart0 */ 23)
466 }
467 };
468 static const unsigned int BTTV_TVNORMS = ARRAY_SIZE(bttv_tvnorms);
469
470 /* ----------------------------------------------------------------------- */
471 /* bttv format list
472 packed pixel formats must come first */
473 static const struct bttv_format bttv_formats[] = {
474 {
475 .name = "8 bpp, gray",
476 .palette = VIDEO_PALETTE_GREY,
477 .fourcc = V4L2_PIX_FMT_GREY,
478 .btformat = BT848_COLOR_FMT_Y8,
479 .depth = 8,
480 .flags = FORMAT_FLAGS_PACKED,
481 },{
482 .name = "8 bpp, dithered color",
483 .palette = VIDEO_PALETTE_HI240,
484 .fourcc = V4L2_PIX_FMT_HI240,
485 .btformat = BT848_COLOR_FMT_RGB8,
486 .depth = 8,
487 .flags = FORMAT_FLAGS_PACKED | FORMAT_FLAGS_DITHER,
488 },{
489 .name = "15 bpp RGB, le",
490 .palette = VIDEO_PALETTE_RGB555,
491 .fourcc = V4L2_PIX_FMT_RGB555,
492 .btformat = BT848_COLOR_FMT_RGB15,
493 .depth = 16,
494 .flags = FORMAT_FLAGS_PACKED,
495 },{
496 .name = "15 bpp RGB, be",
497 .palette = -1,
498 .fourcc = V4L2_PIX_FMT_RGB555X,
499 .btformat = BT848_COLOR_FMT_RGB15,
500 .btswap = 0x03, /* byteswap */
501 .depth = 16,
502 .flags = FORMAT_FLAGS_PACKED,
503 },{
504 .name = "16 bpp RGB, le",
505 .palette = VIDEO_PALETTE_RGB565,
506 .fourcc = V4L2_PIX_FMT_RGB565,
507 .btformat = BT848_COLOR_FMT_RGB16,
508 .depth = 16,
509 .flags = FORMAT_FLAGS_PACKED,
510 },{
511 .name = "16 bpp RGB, be",
512 .palette = -1,
513 .fourcc = V4L2_PIX_FMT_RGB565X,
514 .btformat = BT848_COLOR_FMT_RGB16,
515 .btswap = 0x03, /* byteswap */
516 .depth = 16,
517 .flags = FORMAT_FLAGS_PACKED,
518 },{
519 .name = "24 bpp RGB, le",
520 .palette = VIDEO_PALETTE_RGB24,
521 .fourcc = V4L2_PIX_FMT_BGR24,
522 .btformat = BT848_COLOR_FMT_RGB24,
523 .depth = 24,
524 .flags = FORMAT_FLAGS_PACKED,
525 },{
526 .name = "32 bpp RGB, le",
527 .palette = VIDEO_PALETTE_RGB32,
528 .fourcc = V4L2_PIX_FMT_BGR32,
529 .btformat = BT848_COLOR_FMT_RGB32,
530 .depth = 32,
531 .flags = FORMAT_FLAGS_PACKED,
532 },{
533 .name = "32 bpp RGB, be",
534 .palette = -1,
535 .fourcc = V4L2_PIX_FMT_RGB32,
536 .btformat = BT848_COLOR_FMT_RGB32,
537 .btswap = 0x0f, /* byte+word swap */
538 .depth = 32,
539 .flags = FORMAT_FLAGS_PACKED,
540 },{
541 .name = "4:2:2, packed, YUYV",
542 .palette = VIDEO_PALETTE_YUV422,
543 .fourcc = V4L2_PIX_FMT_YUYV,
544 .btformat = BT848_COLOR_FMT_YUY2,
545 .depth = 16,
546 .flags = FORMAT_FLAGS_PACKED,
547 },{
548 .name = "4:2:2, packed, YUYV",
549 .palette = VIDEO_PALETTE_YUYV,
550 .fourcc = V4L2_PIX_FMT_YUYV,
551 .btformat = BT848_COLOR_FMT_YUY2,
552 .depth = 16,
553 .flags = FORMAT_FLAGS_PACKED,
554 },{
555 .name = "4:2:2, packed, UYVY",
556 .palette = VIDEO_PALETTE_UYVY,
557 .fourcc = V4L2_PIX_FMT_UYVY,
558 .btformat = BT848_COLOR_FMT_YUY2,
559 .btswap = 0x03, /* byteswap */
560 .depth = 16,
561 .flags = FORMAT_FLAGS_PACKED,
562 },{
563 .name = "4:2:2, planar, Y-Cb-Cr",
564 .palette = VIDEO_PALETTE_YUV422P,
565 .fourcc = V4L2_PIX_FMT_YUV422P,
566 .btformat = BT848_COLOR_FMT_YCrCb422,
567 .depth = 16,
568 .flags = FORMAT_FLAGS_PLANAR,
569 .hshift = 1,
570 .vshift = 0,
571 },{
572 .name = "4:2:0, planar, Y-Cb-Cr",
573 .palette = VIDEO_PALETTE_YUV420P,
574 .fourcc = V4L2_PIX_FMT_YUV420,
575 .btformat = BT848_COLOR_FMT_YCrCb422,
576 .depth = 12,
577 .flags = FORMAT_FLAGS_PLANAR,
578 .hshift = 1,
579 .vshift = 1,
580 },{
581 .name = "4:2:0, planar, Y-Cr-Cb",
582 .palette = -1,
583 .fourcc = V4L2_PIX_FMT_YVU420,
584 .btformat = BT848_COLOR_FMT_YCrCb422,
585 .depth = 12,
586 .flags = FORMAT_FLAGS_PLANAR | FORMAT_FLAGS_CrCb,
587 .hshift = 1,
588 .vshift = 1,
589 },{
590 .name = "4:1:1, planar, Y-Cb-Cr",
591 .palette = VIDEO_PALETTE_YUV411P,
592 .fourcc = V4L2_PIX_FMT_YUV411P,
593 .btformat = BT848_COLOR_FMT_YCrCb411,
594 .depth = 12,
595 .flags = FORMAT_FLAGS_PLANAR,
596 .hshift = 2,
597 .vshift = 0,
598 },{
599 .name = "4:1:0, planar, Y-Cb-Cr",
600 .palette = VIDEO_PALETTE_YUV410P,
601 .fourcc = V4L2_PIX_FMT_YUV410,
602 .btformat = BT848_COLOR_FMT_YCrCb411,
603 .depth = 9,
604 .flags = FORMAT_FLAGS_PLANAR,
605 .hshift = 2,
606 .vshift = 2,
607 },{
608 .name = "4:1:0, planar, Y-Cr-Cb",
609 .palette = -1,
610 .fourcc = V4L2_PIX_FMT_YVU410,
611 .btformat = BT848_COLOR_FMT_YCrCb411,
612 .depth = 9,
613 .flags = FORMAT_FLAGS_PLANAR | FORMAT_FLAGS_CrCb,
614 .hshift = 2,
615 .vshift = 2,
616 },{
617 .name = "raw scanlines",
618 .palette = VIDEO_PALETTE_RAW,
619 .fourcc = -1,
620 .btformat = BT848_COLOR_FMT_RAW,
621 .depth = 8,
622 .flags = FORMAT_FLAGS_RAW,
623 }
624 };
625 static const unsigned int BTTV_FORMATS = ARRAY_SIZE(bttv_formats);
626
627 /* ----------------------------------------------------------------------- */
628
629 #define V4L2_CID_PRIVATE_CHROMA_AGC (V4L2_CID_PRIVATE_BASE + 0)
630 #define V4L2_CID_PRIVATE_COMBFILTER (V4L2_CID_PRIVATE_BASE + 1)
631 #define V4L2_CID_PRIVATE_AUTOMUTE (V4L2_CID_PRIVATE_BASE + 2)
632 #define V4L2_CID_PRIVATE_LUMAFILTER (V4L2_CID_PRIVATE_BASE + 3)
633 #define V4L2_CID_PRIVATE_AGC_CRUSH (V4L2_CID_PRIVATE_BASE + 4)
634 #define V4L2_CID_PRIVATE_VCR_HACK (V4L2_CID_PRIVATE_BASE + 5)
635 #define V4L2_CID_PRIVATE_WHITECRUSH_UPPER (V4L2_CID_PRIVATE_BASE + 6)
636 #define V4L2_CID_PRIVATE_WHITECRUSH_LOWER (V4L2_CID_PRIVATE_BASE + 7)
637 #define V4L2_CID_PRIVATE_UV_RATIO (V4L2_CID_PRIVATE_BASE + 8)
638 #define V4L2_CID_PRIVATE_FULL_LUMA_RANGE (V4L2_CID_PRIVATE_BASE + 9)
639 #define V4L2_CID_PRIVATE_CORING (V4L2_CID_PRIVATE_BASE + 10)
640 #define V4L2_CID_PRIVATE_LASTP1 (V4L2_CID_PRIVATE_BASE + 11)
641
642 static const struct v4l2_queryctrl no_ctl = {
643 .name = "42",
644 .flags = V4L2_CTRL_FLAG_DISABLED,
645 };
646 static const struct v4l2_queryctrl bttv_ctls[] = {
647 /* --- video --- */
648 {
649 .id = V4L2_CID_BRIGHTNESS,
650 .name = "Brightness",
651 .minimum = 0,
652 .maximum = 65535,
653 .step = 256,
654 .default_value = 32768,
655 .type = V4L2_CTRL_TYPE_INTEGER,
656 },{
657 .id = V4L2_CID_CONTRAST,
658 .name = "Contrast",
659 .minimum = 0,
660 .maximum = 65535,
661 .step = 128,
662 .default_value = 32768,
663 .type = V4L2_CTRL_TYPE_INTEGER,
664 },{
665 .id = V4L2_CID_SATURATION,
666 .name = "Saturation",
667 .minimum = 0,
668 .maximum = 65535,
669 .step = 128,
670 .default_value = 32768,
671 .type = V4L2_CTRL_TYPE_INTEGER,
672 },{
673 .id = V4L2_CID_HUE,
674 .name = "Hue",
675 .minimum = 0,
676 .maximum = 65535,
677 .step = 256,
678 .default_value = 32768,
679 .type = V4L2_CTRL_TYPE_INTEGER,
680 },
681 /* --- audio --- */
682 {
683 .id = V4L2_CID_AUDIO_MUTE,
684 .name = "Mute",
685 .minimum = 0,
686 .maximum = 1,
687 .type = V4L2_CTRL_TYPE_BOOLEAN,
688 },{
689 .id = V4L2_CID_AUDIO_VOLUME,
690 .name = "Volume",
691 .minimum = 0,
692 .maximum = 65535,
693 .step = 65535/100,
694 .default_value = 65535,
695 .type = V4L2_CTRL_TYPE_INTEGER,
696 },{
697 .id = V4L2_CID_AUDIO_BALANCE,
698 .name = "Balance",
699 .minimum = 0,
700 .maximum = 65535,
701 .step = 65535/100,
702 .default_value = 32768,
703 .type = V4L2_CTRL_TYPE_INTEGER,
704 },{
705 .id = V4L2_CID_AUDIO_BASS,
706 .name = "Bass",
707 .minimum = 0,
708 .maximum = 65535,
709 .step = 65535/100,
710 .default_value = 32768,
711 .type = V4L2_CTRL_TYPE_INTEGER,
712 },{
713 .id = V4L2_CID_AUDIO_TREBLE,
714 .name = "Treble",
715 .minimum = 0,
716 .maximum = 65535,
717 .step = 65535/100,
718 .default_value = 32768,
719 .type = V4L2_CTRL_TYPE_INTEGER,
720 },
721 /* --- private --- */
722 {
723 .id = V4L2_CID_PRIVATE_CHROMA_AGC,
724 .name = "chroma agc",
725 .minimum = 0,
726 .maximum = 1,
727 .type = V4L2_CTRL_TYPE_BOOLEAN,
728 },{
729 .id = V4L2_CID_PRIVATE_COMBFILTER,
730 .name = "combfilter",
731 .minimum = 0,
732 .maximum = 1,
733 .type = V4L2_CTRL_TYPE_BOOLEAN,
734 },{
735 .id = V4L2_CID_PRIVATE_AUTOMUTE,
736 .name = "automute",
737 .minimum = 0,
738 .maximum = 1,
739 .type = V4L2_CTRL_TYPE_BOOLEAN,
740 },{
741 .id = V4L2_CID_PRIVATE_LUMAFILTER,
742 .name = "luma decimation filter",
743 .minimum = 0,
744 .maximum = 1,
745 .type = V4L2_CTRL_TYPE_BOOLEAN,
746 },{
747 .id = V4L2_CID_PRIVATE_AGC_CRUSH,
748 .name = "agc crush",
749 .minimum = 0,
750 .maximum = 1,
751 .type = V4L2_CTRL_TYPE_BOOLEAN,
752 },{
753 .id = V4L2_CID_PRIVATE_VCR_HACK,
754 .name = "vcr hack",
755 .minimum = 0,
756 .maximum = 1,
757 .type = V4L2_CTRL_TYPE_BOOLEAN,
758 },{
759 .id = V4L2_CID_PRIVATE_WHITECRUSH_UPPER,
760 .name = "whitecrush upper",
761 .minimum = 0,
762 .maximum = 255,
763 .step = 1,
764 .default_value = 0xCF,
765 .type = V4L2_CTRL_TYPE_INTEGER,
766 },{
767 .id = V4L2_CID_PRIVATE_WHITECRUSH_LOWER,
768 .name = "whitecrush lower",
769 .minimum = 0,
770 .maximum = 255,
771 .step = 1,
772 .default_value = 0x7F,
773 .type = V4L2_CTRL_TYPE_INTEGER,
774 },{
775 .id = V4L2_CID_PRIVATE_UV_RATIO,
776 .name = "uv ratio",
777 .minimum = 0,
778 .maximum = 100,
779 .step = 1,
780 .default_value = 50,
781 .type = V4L2_CTRL_TYPE_INTEGER,
782 },{
783 .id = V4L2_CID_PRIVATE_FULL_LUMA_RANGE,
784 .name = "full luma range",
785 .minimum = 0,
786 .maximum = 1,
787 .type = V4L2_CTRL_TYPE_BOOLEAN,
788 },{
789 .id = V4L2_CID_PRIVATE_CORING,
790 .name = "coring",
791 .minimum = 0,
792 .maximum = 3,
793 .step = 1,
794 .default_value = 0,
795 .type = V4L2_CTRL_TYPE_INTEGER,
796 }
797
798
799
800 };
801 static const int BTTV_CTLS = ARRAY_SIZE(bttv_ctls);
802
803 /* ----------------------------------------------------------------------- */
804 /* resource management */
805
806 /*
807 RESOURCE_ allocated by freed by
808
809 VIDEO_READ bttv_read 1) bttv_read 2)
810
811 VIDEO_STREAM VIDIOC_STREAMON VIDIOC_STREAMOFF
812 VIDIOC_QBUF 1) bttv_release
813 VIDIOCMCAPTURE 1)
814
815 OVERLAY VIDIOCCAPTURE on VIDIOCCAPTURE off
816 VIDIOC_OVERLAY on VIDIOC_OVERLAY off
817 3) bttv_release
818
819 VBI VIDIOC_STREAMON VIDIOC_STREAMOFF
820 VIDIOC_QBUF 1) bttv_release
821 bttv_read, bttv_poll 1) 4)
822
823 1) The resource must be allocated when we enter buffer prepare functions
824 and remain allocated while buffers are in the DMA queue.
825 2) This is a single frame read.
826 3) VIDIOC_S_FBUF and VIDIOC_S_FMT (OVERLAY) still work when
827 RESOURCE_OVERLAY is allocated.
828 4) This is a continuous read, implies VIDIOC_STREAMON.
829
830 Note this driver permits video input and standard changes regardless if
831 resources are allocated.
832 */
833
834 #define VBI_RESOURCES (RESOURCE_VBI)
835 #define VIDEO_RESOURCES (RESOURCE_VIDEO_READ | \
836 RESOURCE_VIDEO_STREAM | \
837 RESOURCE_OVERLAY)
838
839 static
840 int check_alloc_btres(struct bttv *btv, struct bttv_fh *fh, int bit)
841 {
842 int xbits; /* mutual exclusive resources */
843
844 if (fh->resources & bit)
845 /* have it already allocated */
846 return 1;
847
848 xbits = bit;
849 if (bit & (RESOURCE_VIDEO_READ | RESOURCE_VIDEO_STREAM))
850 xbits |= RESOURCE_VIDEO_READ | RESOURCE_VIDEO_STREAM;
851
852 /* is it free? */
853 mutex_lock(&btv->lock);
854 if (btv->resources & xbits) {
855 /* no, someone else uses it */
856 goto fail;
857 }
858
859 if ((bit & VIDEO_RESOURCES)
860 && 0 == (btv->resources & VIDEO_RESOURCES)) {
861 /* Do crop - use current, don't - use default parameters. */
862 __s32 top = btv->crop[!!fh->do_crop].rect.top;
863
864 if (btv->vbi_end > top)
865 goto fail;
866
867 /* We cannot capture the same line as video and VBI data.
868 Claim scan lines crop[].rect.top to bottom. */
869 btv->crop_start = top;
870 } else if (bit & VBI_RESOURCES) {
871 __s32 end = fh->vbi_fmt.end;
872
873 if (end > btv->crop_start)
874 goto fail;
875
876 /* Claim scan lines above fh->vbi_fmt.end. */
877 btv->vbi_end = end;
878 }
879
880 /* it's free, grab it */
881 fh->resources |= bit;
882 btv->resources |= bit;
883 mutex_unlock(&btv->lock);
884 return 1;
885
886 fail:
887 mutex_unlock(&btv->lock);
888 return 0;
889 }
890
891 static
892 int check_btres(struct bttv_fh *fh, int bit)
893 {
894 return (fh->resources & bit);
895 }
896
897 static
898 int locked_btres(struct bttv *btv, int bit)
899 {
900 return (btv->resources & bit);
901 }
902
903 /* Call with btv->lock down. */
904 static void
905 disclaim_vbi_lines(struct bttv *btv)
906 {
907 btv->vbi_end = 0;
908 }
909
910 /* Call with btv->lock down. */
911 static void
912 disclaim_video_lines(struct bttv *btv)
913 {
914 const struct bttv_tvnorm *tvnorm;
915 u8 crop;
916
917 tvnorm = &bttv_tvnorms[btv->tvnorm];
918 btv->crop_start = tvnorm->cropcap.bounds.top
919 + tvnorm->cropcap.bounds.height;
920
921 /* VBI capturing ends at VDELAY, start of video capturing, no
922 matter how many lines the VBI RISC program expects. When video
923 capturing is off, it shall no longer "preempt" VBI capturing,
924 so we set VDELAY to maximum. */
925 crop = btread(BT848_E_CROP) | 0xc0;
926 btwrite(crop, BT848_E_CROP);
927 btwrite(0xfe, BT848_E_VDELAY_LO);
928 btwrite(crop, BT848_O_CROP);
929 btwrite(0xfe, BT848_O_VDELAY_LO);
930 }
931
932 static
933 void free_btres(struct bttv *btv, struct bttv_fh *fh, int bits)
934 {
935 if ((fh->resources & bits) != bits) {
936 /* trying to free ressources not allocated by us ... */
937 printk("bttv: BUG! (btres)\n");
938 }
939 mutex_lock(&btv->lock);
940 fh->resources &= ~bits;
941 btv->resources &= ~bits;
942
943 bits = btv->resources;
944
945 if (0 == (bits & VIDEO_RESOURCES))
946 disclaim_video_lines(btv);
947
948 if (0 == (bits & VBI_RESOURCES))
949 disclaim_vbi_lines(btv);
950
951 mutex_unlock(&btv->lock);
952 }
953
954 /* ----------------------------------------------------------------------- */
955 /* If Bt848a or Bt849, use PLL for PAL/SECAM and crystal for NTSC */
956
957 /* Frequency = (F_input / PLL_X) * PLL_I.PLL_F/PLL_C
958 PLL_X = Reference pre-divider (0=1, 1=2)
959 PLL_C = Post divider (0=6, 1=4)
960 PLL_I = Integer input
961 PLL_F = Fractional input
962
963 F_input = 28.636363 MHz:
964 PAL (CLKx2 = 35.46895 MHz): PLL_X = 1, PLL_I = 0x0E, PLL_F = 0xDCF9, PLL_C = 0
965 */
966
967 static void set_pll_freq(struct bttv *btv, unsigned int fin, unsigned int fout)
968 {
969 unsigned char fl, fh, fi;
970
971 /* prevent overflows */
972 fin/=4;
973 fout/=4;
974
975 fout*=12;
976 fi=fout/fin;
977
978 fout=(fout%fin)*256;
979 fh=fout/fin;
980
981 fout=(fout%fin)*256;
982 fl=fout/fin;
983
984 btwrite(fl, BT848_PLL_F_LO);
985 btwrite(fh, BT848_PLL_F_HI);
986 btwrite(fi|BT848_PLL_X, BT848_PLL_XCI);
987 }
988
989 static void set_pll(struct bttv *btv)
990 {
991 int i;
992
993 if (!btv->pll.pll_crystal)
994 return;
995
996 if (btv->pll.pll_ofreq == btv->pll.pll_current) {
997 dprintk("bttv%d: PLL: no change required\n",btv->c.nr);
998 return;
999 }
1000
1001 if (btv->pll.pll_ifreq == btv->pll.pll_ofreq) {
1002 /* no PLL needed */
1003 if (btv->pll.pll_current == 0)
1004 return;
1005 bttv_printk(KERN_INFO "bttv%d: PLL can sleep, using XTAL (%d).\n",
1006 btv->c.nr,btv->pll.pll_ifreq);
1007 btwrite(0x00,BT848_TGCTRL);
1008 btwrite(0x00,BT848_PLL_XCI);
1009 btv->pll.pll_current = 0;
1010 return;
1011 }
1012
1013 bttv_printk(KERN_INFO "bttv%d: PLL: %d => %d ",btv->c.nr,
1014 btv->pll.pll_ifreq, btv->pll.pll_ofreq);
1015 set_pll_freq(btv, btv->pll.pll_ifreq, btv->pll.pll_ofreq);
1016
1017 for (i=0; i<10; i++) {
1018 /* Let other people run while the PLL stabilizes */
1019 bttv_printk(".");
1020 msleep(10);
1021
1022 if (btread(BT848_DSTATUS) & BT848_DSTATUS_PLOCK) {
1023 btwrite(0,BT848_DSTATUS);
1024 } else {
1025 btwrite(0x08,BT848_TGCTRL);
1026 btv->pll.pll_current = btv->pll.pll_ofreq;
1027 bttv_printk(" ok\n");
1028 return;
1029 }
1030 }
1031 btv->pll.pll_current = -1;
1032 bttv_printk("failed\n");
1033 return;
1034 }
1035
1036 /* used to switch between the bt848's analog/digital video capture modes */
1037 static void bt848A_set_timing(struct bttv *btv)
1038 {
1039 int i, len;
1040 int table_idx = bttv_tvnorms[btv->tvnorm].sram;
1041 int fsc = bttv_tvnorms[btv->tvnorm].Fsc;
1042
1043 if (UNSET == bttv_tvcards[btv->c.type].muxsel[btv->input]) {
1044 dprintk("bttv%d: load digital timing table (table_idx=%d)\n",
1045 btv->c.nr,table_idx);
1046
1047 /* timing change...reset timing generator address */
1048 btwrite(0x00, BT848_TGCTRL);
1049 btwrite(0x02, BT848_TGCTRL);
1050 btwrite(0x00, BT848_TGCTRL);
1051
1052 len=SRAM_Table[table_idx][0];
1053 for(i = 1; i <= len; i++)
1054 btwrite(SRAM_Table[table_idx][i],BT848_TGLB);
1055 btv->pll.pll_ofreq = 27000000;
1056
1057 set_pll(btv);
1058 btwrite(0x11, BT848_TGCTRL);
1059 btwrite(0x41, BT848_DVSIF);
1060 } else {
1061 btv->pll.pll_ofreq = fsc;
1062 set_pll(btv);
1063 btwrite(0x0, BT848_DVSIF);
1064 }
1065 }
1066
1067 /* ----------------------------------------------------------------------- */
1068
1069 static void bt848_bright(struct bttv *btv, int bright)
1070 {
1071 int value;
1072
1073 // printk("bttv: set bright: %d\n",bright); // DEBUG
1074 btv->bright = bright;
1075
1076 /* We want -128 to 127 we get 0-65535 */
1077 value = (bright >> 8) - 128;
1078 btwrite(value & 0xff, BT848_BRIGHT);
1079 }
1080
1081 static void bt848_hue(struct bttv *btv, int hue)
1082 {
1083 int value;
1084
1085 btv->hue = hue;
1086
1087 /* -128 to 127 */
1088 value = (hue >> 8) - 128;
1089 btwrite(value & 0xff, BT848_HUE);
1090 }
1091
1092 static void bt848_contrast(struct bttv *btv, int cont)
1093 {
1094 int value,hibit;
1095
1096 btv->contrast = cont;
1097
1098 /* 0-511 */
1099 value = (cont >> 7);
1100 hibit = (value >> 6) & 4;
1101 btwrite(value & 0xff, BT848_CONTRAST_LO);
1102 btaor(hibit, ~4, BT848_E_CONTROL);
1103 btaor(hibit, ~4, BT848_O_CONTROL);
1104 }
1105
1106 static void bt848_sat(struct bttv *btv, int color)
1107 {
1108 int val_u,val_v,hibits;
1109
1110 btv->saturation = color;
1111
1112 /* 0-511 for the color */
1113 val_u = ((color * btv->opt_uv_ratio) / 50) >> 7;
1114 val_v = (((color * (100 - btv->opt_uv_ratio) / 50) >>7)*180L)/254;
1115 hibits = (val_u >> 7) & 2;
1116 hibits |= (val_v >> 8) & 1;
1117 btwrite(val_u & 0xff, BT848_SAT_U_LO);
1118 btwrite(val_v & 0xff, BT848_SAT_V_LO);
1119 btaor(hibits, ~3, BT848_E_CONTROL);
1120 btaor(hibits, ~3, BT848_O_CONTROL);
1121 }
1122
1123 /* ----------------------------------------------------------------------- */
1124
1125 static int
1126 video_mux(struct bttv *btv, unsigned int input)
1127 {
1128 int mux,mask2;
1129
1130 if (input >= bttv_tvcards[btv->c.type].video_inputs)
1131 return -EINVAL;
1132
1133 /* needed by RemoteVideo MX */
1134 mask2 = bttv_tvcards[btv->c.type].gpiomask2;
1135 if (mask2)
1136 gpio_inout(mask2,mask2);
1137
1138 if (input == btv->svhs) {
1139 btor(BT848_CONTROL_COMP, BT848_E_CONTROL);
1140 btor(BT848_CONTROL_COMP, BT848_O_CONTROL);
1141 } else {
1142 btand(~BT848_CONTROL_COMP, BT848_E_CONTROL);
1143 btand(~BT848_CONTROL_COMP, BT848_O_CONTROL);
1144 }
1145 mux = bttv_tvcards[btv->c.type].muxsel[input] & 3;
1146 btaor(mux<<5, ~(3<<5), BT848_IFORM);
1147 dprintk(KERN_DEBUG "bttv%d: video mux: input=%d mux=%d\n",
1148 btv->c.nr,input,mux);
1149
1150 /* card specific hook */
1151 if(bttv_tvcards[btv->c.type].muxsel_hook)
1152 bttv_tvcards[btv->c.type].muxsel_hook (btv, input);
1153 return 0;
1154 }
1155
1156 static char *audio_modes[] = {
1157 "audio: tuner", "audio: radio", "audio: extern",
1158 "audio: intern", "audio: mute"
1159 };
1160
1161 static int
1162 audio_mux(struct bttv *btv, int input, int mute)
1163 {
1164 int gpio_val, signal;
1165 struct v4l2_control ctrl;
1166 struct i2c_client *c;
1167
1168 gpio_inout(bttv_tvcards[btv->c.type].gpiomask,
1169 bttv_tvcards[btv->c.type].gpiomask);
1170 signal = btread(BT848_DSTATUS) & BT848_DSTATUS_HLOC;
1171
1172 btv->mute = mute;
1173 btv->audio = input;
1174
1175 /* automute */
1176 mute = mute || (btv->opt_automute && !signal && !btv->radio_user);
1177
1178 if (mute)
1179 gpio_val = bttv_tvcards[btv->c.type].gpiomute;
1180 else
1181 gpio_val = bttv_tvcards[btv->c.type].gpiomux[input];
1182
1183 gpio_bits(bttv_tvcards[btv->c.type].gpiomask, gpio_val);
1184 if (bttv_gpio)
1185 bttv_gpio_tracking(btv, audio_modes[mute ? 4 : input]);
1186 if (in_interrupt())
1187 return 0;
1188
1189 ctrl.id = V4L2_CID_AUDIO_MUTE;
1190 ctrl.value = btv->mute;
1191 bttv_call_i2c_clients(btv, VIDIOC_S_CTRL, &ctrl);
1192 c = btv->i2c_msp34xx_client;
1193 if (c) {
1194 struct v4l2_routing route;
1195
1196 /* Note: the inputs tuner/radio/extern/intern are translated
1197 to msp routings. This assumes common behavior for all msp3400
1198 based TV cards. When this assumption fails, then the
1199 specific MSP routing must be added to the card table.
1200 For now this is sufficient. */
1201 switch (input) {
1202 case TVAUDIO_INPUT_RADIO:
1203 route.input = MSP_INPUT(MSP_IN_SCART2, MSP_IN_TUNER1,
1204 MSP_DSP_IN_SCART, MSP_DSP_IN_SCART);
1205 break;
1206 case TVAUDIO_INPUT_EXTERN:
1207 route.input = MSP_INPUT(MSP_IN_SCART1, MSP_IN_TUNER1,
1208 MSP_DSP_IN_SCART, MSP_DSP_IN_SCART);
1209 break;
1210 case TVAUDIO_INPUT_INTERN:
1211 /* Yes, this is the same input as for RADIO. I doubt
1212 if this is ever used. The only board with an INTERN
1213 input is the BTTV_BOARD_AVERMEDIA98. I wonder how
1214 that was tested. My guess is that the whole INTERN
1215 input does not work. */
1216 route.input = MSP_INPUT(MSP_IN_SCART2, MSP_IN_TUNER1,
1217 MSP_DSP_IN_SCART, MSP_DSP_IN_SCART);
1218 break;
1219 case TVAUDIO_INPUT_TUNER:
1220 default:
1221 /* This is the only card that uses TUNER2, and afaik,
1222 is the only difference between the VOODOOTV_FM
1223 and VOODOOTV_200 */
1224 if (btv->c.type == BTTV_BOARD_VOODOOTV_200)
1225 route.input = MSP_INPUT(MSP_IN_SCART1, MSP_IN_TUNER2, \
1226 MSP_DSP_IN_TUNER, MSP_DSP_IN_TUNER);
1227 else
1228 route.input = MSP_INPUT_DEFAULT;
1229 break;
1230 }
1231 route.output = MSP_OUTPUT_DEFAULT;
1232 c->driver->command(c, VIDIOC_INT_S_AUDIO_ROUTING, &route);
1233 }
1234 c = btv->i2c_tvaudio_client;
1235 if (c) {
1236 struct v4l2_routing route;
1237
1238 route.input = input;
1239 route.output = 0;
1240 c->driver->command(c, VIDIOC_INT_S_AUDIO_ROUTING, &route);
1241 }
1242 return 0;
1243 }
1244
1245 static inline int
1246 audio_mute(struct bttv *btv, int mute)
1247 {
1248 return audio_mux(btv, btv->audio, mute);
1249 }
1250
1251 static inline int
1252 audio_input(struct bttv *btv, int input)
1253 {
1254 return audio_mux(btv, input, btv->mute);
1255 }
1256
1257 static void
1258 i2c_vidiocschan(struct bttv *btv)
1259 {
1260 v4l2_std_id std = bttv_tvnorms[btv->tvnorm].v4l2_id;
1261
1262 bttv_call_i2c_clients(btv, VIDIOC_S_STD, &std);
1263 if (btv->c.type == BTTV_BOARD_VOODOOTV_FM || btv->c.type == BTTV_BOARD_VOODOOTV_200)
1264 bttv_tda9880_setnorm(btv,btv->tvnorm);
1265 }
1266
1267 static void
1268 bttv_crop_calc_limits(struct bttv_crop *c)
1269 {
1270 /* Scale factor min. 1:1, max. 16:1. Min. image size
1271 48 x 32. Scaled width must be a multiple of 4. */
1272
1273 if (1) {
1274 /* For bug compatibility with VIDIOCGCAP and image
1275 size checks in earlier driver versions. */
1276 c->min_scaled_width = 48;
1277 c->min_scaled_height = 32;
1278 } else {
1279 c->min_scaled_width =
1280 (max(48, c->rect.width >> 4) + 3) & ~3;
1281 c->min_scaled_height =
1282 max(32, c->rect.height >> 4);
1283 }
1284
1285 c->max_scaled_width = c->rect.width & ~3;
1286 c->max_scaled_height = c->rect.height;
1287 }
1288
1289 static void
1290 bttv_crop_reset(struct bttv_crop *c, int norm)
1291 {
1292 c->rect = bttv_tvnorms[norm].cropcap.defrect;
1293 bttv_crop_calc_limits(c);
1294 }
1295
1296 /* Call with btv->lock down. */
1297 static int
1298 set_tvnorm(struct bttv *btv, unsigned int norm)
1299 {
1300 const struct bttv_tvnorm *tvnorm;
1301
1302 if (norm < 0 || norm >= BTTV_TVNORMS)
1303 return -EINVAL;
1304
1305 tvnorm = &bttv_tvnorms[norm];
1306
1307 if (btv->tvnorm < 0 ||
1308 btv->tvnorm >= BTTV_TVNORMS ||
1309 0 != memcmp(&bttv_tvnorms[btv->tvnorm].cropcap,
1310 &tvnorm->cropcap,
1311 sizeof (tvnorm->cropcap))) {
1312 bttv_crop_reset(&btv->crop[0], norm);
1313 btv->crop[1] = btv->crop[0]; /* current = default */
1314
1315 if (0 == (btv->resources & VIDEO_RESOURCES)) {
1316 btv->crop_start = tvnorm->cropcap.bounds.top
1317 + tvnorm->cropcap.bounds.height;
1318 }
1319 }
1320
1321 btv->tvnorm = norm;
1322
1323 btwrite(tvnorm->adelay, BT848_ADELAY);
1324 btwrite(tvnorm->bdelay, BT848_BDELAY);
1325 btaor(tvnorm->iform,~(BT848_IFORM_NORM|BT848_IFORM_XTBOTH),
1326 BT848_IFORM);
1327 btwrite(tvnorm->vbipack, BT848_VBI_PACK_SIZE);
1328 btwrite(1, BT848_VBI_PACK_DEL);
1329 bt848A_set_timing(btv);
1330
1331 switch (btv->c.type) {
1332 case BTTV_BOARD_VOODOOTV_FM:
1333 case BTTV_BOARD_VOODOOTV_200:
1334 bttv_tda9880_setnorm(btv,norm);
1335 break;
1336 }
1337 return 0;
1338 }
1339
1340 /* Call with btv->lock down. */
1341 static void
1342 set_input(struct bttv *btv, unsigned int input, unsigned int norm)
1343 {
1344 unsigned long flags;
1345
1346 btv->input = input;
1347 if (irq_iswitch) {
1348 spin_lock_irqsave(&btv->s_lock,flags);
1349 if (btv->curr.frame_irq) {
1350 /* active capture -> delayed input switch */
1351 btv->new_input = input;
1352 } else {
1353 video_mux(btv,input);
1354 }
1355 spin_unlock_irqrestore(&btv->s_lock,flags);
1356 } else {
1357 video_mux(btv,input);
1358 }
1359 audio_input(btv,(input == bttv_tvcards[btv->c.type].tuner ?
1360 TVAUDIO_INPUT_TUNER : TVAUDIO_INPUT_EXTERN));
1361 set_tvnorm(btv, norm);
1362 i2c_vidiocschan(btv);
1363 }
1364
1365 static void init_irqreg(struct bttv *btv)
1366 {
1367 /* clear status */
1368 btwrite(0xfffffUL, BT848_INT_STAT);
1369
1370 if (bttv_tvcards[btv->c.type].no_video) {
1371 /* i2c only */
1372 btwrite(BT848_INT_I2CDONE,
1373 BT848_INT_MASK);
1374 } else {
1375 /* full video */
1376 btwrite((btv->triton1) |
1377 (btv->gpioirq ? BT848_INT_GPINT : 0) |
1378 BT848_INT_SCERR |
1379 (fdsr ? BT848_INT_FDSR : 0) |
1380 BT848_INT_RISCI|BT848_INT_OCERR|BT848_INT_VPRES|
1381 BT848_INT_FMTCHG|BT848_INT_HLOCK|
1382 BT848_INT_I2CDONE,
1383 BT848_INT_MASK);
1384 }
1385 }
1386
1387 static void init_bt848(struct bttv *btv)
1388 {
1389 int val;
1390
1391 if (bttv_tvcards[btv->c.type].no_video) {
1392 /* very basic init only */
1393 init_irqreg(btv);
1394 return;
1395 }
1396
1397 btwrite(0x00, BT848_CAP_CTL);
1398 btwrite(BT848_COLOR_CTL_GAMMA, BT848_COLOR_CTL);
1399 btwrite(BT848_IFORM_XTAUTO | BT848_IFORM_AUTO, BT848_IFORM);
1400
1401 /* set planar and packed mode trigger points and */
1402 /* set rising edge of inverted GPINTR pin as irq trigger */
1403 btwrite(BT848_GPIO_DMA_CTL_PKTP_32|
1404 BT848_GPIO_DMA_CTL_PLTP1_16|
1405 BT848_GPIO_DMA_CTL_PLTP23_16|
1406 BT848_GPIO_DMA_CTL_GPINTC|
1407 BT848_GPIO_DMA_CTL_GPINTI,
1408 BT848_GPIO_DMA_CTL);
1409
1410 val = btv->opt_chroma_agc ? BT848_SCLOOP_CAGC : 0;
1411 btwrite(val, BT848_E_SCLOOP);
1412 btwrite(val, BT848_O_SCLOOP);
1413
1414 btwrite(0x20, BT848_E_VSCALE_HI);
1415 btwrite(0x20, BT848_O_VSCALE_HI);
1416 btwrite(BT848_ADC_RESERVED | (btv->opt_adc_crush ? BT848_ADC_CRUSH : 0),
1417 BT848_ADC);
1418
1419 btwrite(whitecrush_upper, BT848_WC_UP);
1420 btwrite(whitecrush_lower, BT848_WC_DOWN);
1421
1422 if (btv->opt_lumafilter) {
1423 btwrite(0, BT848_E_CONTROL);
1424 btwrite(0, BT848_O_CONTROL);
1425 } else {
1426 btwrite(BT848_CONTROL_LDEC, BT848_E_CONTROL);
1427 btwrite(BT848_CONTROL_LDEC, BT848_O_CONTROL);
1428 }
1429
1430 bt848_bright(btv, btv->bright);
1431 bt848_hue(btv, btv->hue);
1432 bt848_contrast(btv, btv->contrast);
1433 bt848_sat(btv, btv->saturation);
1434
1435 /* interrupt */
1436 init_irqreg(btv);
1437 }
1438
1439 static void bttv_reinit_bt848(struct bttv *btv)
1440 {
1441 unsigned long flags;
1442
1443 if (bttv_verbose)
1444 printk(KERN_INFO "bttv%d: reset, reinitialize\n",btv->c.nr);
1445 spin_lock_irqsave(&btv->s_lock,flags);
1446 btv->errors=0;
1447 bttv_set_dma(btv,0);
1448 spin_unlock_irqrestore(&btv->s_lock,flags);
1449
1450 init_bt848(btv);
1451 btv->pll.pll_current = -1;
1452 set_input(btv, btv->input, btv->tvnorm);
1453 }
1454
1455 static int get_control(struct bttv *btv, struct v4l2_control *c)
1456 {
1457 struct video_audio va;
1458 int i;
1459
1460 for (i = 0; i < BTTV_CTLS; i++)
1461 if (bttv_ctls[i].id == c->id)
1462 break;
1463 if (i == BTTV_CTLS)
1464 return -EINVAL;
1465 if (btv->audio_hook && i >= 4 && i <= 8) {
1466 memset(&va,0,sizeof(va));
1467 btv->audio_hook(btv,&va,0);
1468 switch (c->id) {
1469 case V4L2_CID_AUDIO_MUTE:
1470 c->value = (VIDEO_AUDIO_MUTE & va.flags) ? 1 : 0;
1471 break;
1472 case V4L2_CID_AUDIO_VOLUME:
1473 c->value = va.volume;
1474 break;
1475 case V4L2_CID_AUDIO_BALANCE:
1476 c->value = va.balance;
1477 break;
1478 case V4L2_CID_AUDIO_BASS:
1479 c->value = va.bass;
1480 break;
1481 case V4L2_CID_AUDIO_TREBLE:
1482 c->value = va.treble;
1483 break;
1484 }
1485 return 0;
1486 }
1487 switch (c->id) {
1488 case V4L2_CID_BRIGHTNESS:
1489 c->value = btv->bright;
1490 break;
1491 case V4L2_CID_HUE:
1492 c->value = btv->hue;
1493 break;
1494 case V4L2_CID_CONTRAST:
1495 c->value = btv->contrast;
1496 break;
1497 case V4L2_CID_SATURATION:
1498 c->value = btv->saturation;
1499 break;
1500
1501 case V4L2_CID_AUDIO_MUTE:
1502 case V4L2_CID_AUDIO_VOLUME:
1503 case V4L2_CID_AUDIO_BALANCE:
1504 case V4L2_CID_AUDIO_BASS:
1505 case V4L2_CID_AUDIO_TREBLE:
1506 bttv_call_i2c_clients(btv,VIDIOC_G_CTRL,c);
1507 break;
1508
1509 case V4L2_CID_PRIVATE_CHROMA_AGC:
1510 c->value = btv->opt_chroma_agc;
1511 break;
1512 case V4L2_CID_PRIVATE_COMBFILTER:
1513 c->value = btv->opt_combfilter;
1514 break;
1515 case V4L2_CID_PRIVATE_LUMAFILTER:
1516 c->value = btv->opt_lumafilter;
1517 break;
1518 case V4L2_CID_PRIVATE_AUTOMUTE:
1519 c->value = btv->opt_automute;
1520 break;
1521 case V4L2_CID_PRIVATE_AGC_CRUSH:
1522 c->value = btv->opt_adc_crush;
1523 break;
1524 case V4L2_CID_PRIVATE_VCR_HACK:
1525 c->value = btv->opt_vcr_hack;
1526 break;
1527 case V4L2_CID_PRIVATE_WHITECRUSH_UPPER:
1528 c->value = btv->opt_whitecrush_upper;
1529 break;
1530 case V4L2_CID_PRIVATE_WHITECRUSH_LOWER:
1531 c->value = btv->opt_whitecrush_lower;
1532 break;
1533 case V4L2_CID_PRIVATE_UV_RATIO:
1534 c->value = btv->opt_uv_ratio;
1535 break;
1536 case V4L2_CID_PRIVATE_FULL_LUMA_RANGE:
1537 c->value = btv->opt_full_luma_range;
1538 break;
1539 case V4L2_CID_PRIVATE_CORING:
1540 c->value = btv->opt_coring;
1541 break;
1542 default:
1543 return -EINVAL;
1544 }
1545 return 0;
1546 }
1547
1548 static int set_control(struct bttv *btv, struct v4l2_control *c)
1549 {
1550 struct video_audio va;
1551 int i,val;
1552
1553 for (i = 0; i < BTTV_CTLS; i++)
1554 if (bttv_ctls[i].id == c->id)
1555 break;
1556 if (i == BTTV_CTLS)
1557 return -EINVAL;
1558 if (btv->audio_hook && i >= 4 && i <= 8) {
1559 memset(&va,0,sizeof(va));
1560 btv->audio_hook(btv,&va,0);
1561 switch (c->id) {
1562 case V4L2_CID_AUDIO_MUTE:
1563 if (c->value) {
1564 va.flags |= VIDEO_AUDIO_MUTE;
1565 audio_mute(btv, 1);
1566 } else {
1567 va.flags &= ~VIDEO_AUDIO_MUTE;
1568 audio_mute(btv, 0);
1569 }
1570 break;
1571
1572 case V4L2_CID_AUDIO_VOLUME:
1573 va.volume = c->value;
1574 break;
1575 case V4L2_CID_AUDIO_BALANCE:
1576 va.balance = c->value;
1577 break;
1578 case V4L2_CID_AUDIO_BASS:
1579 va.bass = c->value;
1580 break;
1581 case V4L2_CID_AUDIO_TREBLE:
1582 va.treble = c->value;
1583 break;
1584 }
1585 btv->audio_hook(btv,&va,1);
1586 return 0;
1587 }
1588 switch (c->id) {
1589 case V4L2_CID_BRIGHTNESS:
1590 bt848_bright(btv,c->value);
1591 break;
1592 case V4L2_CID_HUE:
1593 bt848_hue(btv,c->value);
1594 break;
1595 case V4L2_CID_CONTRAST:
1596 bt848_contrast(btv,c->value);
1597 break;
1598 case V4L2_CID_SATURATION:
1599 bt848_sat(btv,c->value);
1600 break;
1601 case V4L2_CID_AUDIO_MUTE:
1602 audio_mute(btv, c->value);
1603 /* fall through */
1604 case V4L2_CID_AUDIO_VOLUME:
1605 case V4L2_CID_AUDIO_BALANCE:
1606 case V4L2_CID_AUDIO_BASS:
1607 case V4L2_CID_AUDIO_TREBLE:
1608 bttv_call_i2c_clients(btv,VIDIOC_S_CTRL,c);
1609 break;
1610
1611 case V4L2_CID_PRIVATE_CHROMA_AGC:
1612 btv->opt_chroma_agc = c->value;
1613 val = btv->opt_chroma_agc ? BT848_SCLOOP_CAGC : 0;
1614 btwrite(val, BT848_E_SCLOOP);
1615 btwrite(val, BT848_O_SCLOOP);
1616 break;
1617 case V4L2_CID_PRIVATE_COMBFILTER:
1618 btv->opt_combfilter = c->value;
1619 break;
1620 case V4L2_CID_PRIVATE_LUMAFILTER:
1621 btv->opt_lumafilter = c->value;
1622 if (btv->opt_lumafilter) {
1623 btand(~BT848_CONTROL_LDEC, BT848_E_CONTROL);
1624 btand(~BT848_CONTROL_LDEC, BT848_O_CONTROL);
1625 } else {
1626 btor(BT848_CONTROL_LDEC, BT848_E_CONTROL);
1627 btor(BT848_CONTROL_LDEC, BT848_O_CONTROL);
1628 }
1629 break;
1630 case V4L2_CID_PRIVATE_AUTOMUTE:
1631 btv->opt_automute = c->value;
1632 break;
1633 case V4L2_CID_PRIVATE_AGC_CRUSH:
1634 btv->opt_adc_crush = c->value;
1635 btwrite(BT848_ADC_RESERVED | (btv->opt_adc_crush ? BT848_ADC_CRUSH : 0),
1636 BT848_ADC);
1637 break;
1638 case V4L2_CID_PRIVATE_VCR_HACK:
1639 btv->opt_vcr_hack = c->value;
1640 break;
1641 case V4L2_CID_PRIVATE_WHITECRUSH_UPPER:
1642 btv->opt_whitecrush_upper = c->value;
1643 btwrite(c->value, BT848_WC_UP);
1644 break;
1645 case V4L2_CID_PRIVATE_WHITECRUSH_LOWER:
1646 btv->opt_whitecrush_lower = c->value;
1647 btwrite(c->value, BT848_WC_DOWN);
1648 break;
1649 case V4L2_CID_PRIVATE_UV_RATIO:
1650 btv->opt_uv_ratio = c->value;
1651 bt848_sat(btv, btv->saturation);
1652 break;
1653 case V4L2_CID_PRIVATE_FULL_LUMA_RANGE:
1654 btv->opt_full_luma_range = c->value;
1655 btaor((c->value<<7), ~BT848_OFORM_RANGE, BT848_OFORM);
1656 break;
1657 case V4L2_CID_PRIVATE_CORING:
1658 btv->opt_coring = c->value;
1659 btaor((c->value<<5), ~BT848_OFORM_CORE32, BT848_OFORM);
1660 break;
1661 default:
1662 return -EINVAL;
1663 }
1664 return 0;
1665 }
1666
1667 /* ----------------------------------------------------------------------- */
1668
1669 void bttv_gpio_tracking(struct bttv *btv, char *comment)
1670 {
1671 unsigned int outbits, data;
1672 outbits = btread(BT848_GPIO_OUT_EN);
1673 data = btread(BT848_GPIO_DATA);
1674 printk(KERN_DEBUG "bttv%d: gpio: en=%08x, out=%08x in=%08x [%s]\n",
1675 btv->c.nr,outbits,data & outbits, data & ~outbits, comment);
1676 }
1677
1678 static void bttv_field_count(struct bttv *btv)
1679 {
1680 int need_count = 0;
1681
1682 if (btv->users)
1683 need_count++;
1684
1685 if (need_count) {
1686 /* start field counter */
1687 btor(BT848_INT_VSYNC,BT848_INT_MASK);
1688 } else {
1689 /* stop field counter */
1690 btand(~BT848_INT_VSYNC,BT848_INT_MASK);
1691 btv->field_count = 0;
1692 }
1693 }
1694
1695 static const struct bttv_format*
1696 format_by_palette(int palette)
1697 {
1698 unsigned int i;
1699
1700 for (i = 0; i < BTTV_FORMATS; i++) {
1701 if (-1 == bttv_formats[i].palette)
1702 continue;
1703 if (bttv_formats[i].palette == palette)
1704 return bttv_formats+i;
1705 }
1706 return NULL;
1707 }
1708
1709 static const struct bttv_format*
1710 format_by_fourcc(int fourcc)
1711 {
1712 unsigned int i;
1713
1714 for (i = 0; i < BTTV_FORMATS; i++) {
1715 if (-1 == bttv_formats[i].fourcc)
1716 continue;
1717 if (bttv_formats[i].fourcc == fourcc)
1718 return bttv_formats+i;
1719 }
1720 return NULL;
1721 }
1722
1723 /* ----------------------------------------------------------------------- */
1724 /* misc helpers */
1725
1726 static int
1727 bttv_switch_overlay(struct bttv *btv, struct bttv_fh *fh,
1728 struct bttv_buffer *new)
1729 {
1730 struct bttv_buffer *old;
1731 unsigned long flags;
1732 int retval = 0;
1733
1734 dprintk("switch_overlay: enter [new=%p]\n",new);
1735 if (new)
1736 new->vb.state = STATE_DONE;
1737 spin_lock_irqsave(&btv->s_lock,flags);
1738 old = btv->screen;
1739 btv->screen = new;
1740 btv->loop_irq |= 1;
1741 bttv_set_dma(btv, 0x03);
1742 spin_unlock_irqrestore(&btv->s_lock,flags);
1743 if (NULL != old) {
1744 dprintk("switch_overlay: old=%p state is %d\n",old,old->vb.state);
1745 bttv_dma_free(&fh->cap,btv, old);
1746 kfree(old);
1747 }
1748 if (NULL == new)
1749 free_btres(btv,fh,RESOURCE_OVERLAY);
1750 dprintk("switch_overlay: done\n");
1751 return retval;
1752 }
1753
1754 /* ----------------------------------------------------------------------- */
1755 /* video4linux (1) interface */
1756
1757 static int bttv_prepare_buffer(struct videobuf_queue *q,struct bttv *btv,
1758 struct bttv_buffer *buf,
1759 const struct bttv_format *fmt,
1760 unsigned int width, unsigned int height,
1761 enum v4l2_field field)
1762 {
1763 struct bttv_fh *fh = q->priv_data;
1764 int redo_dma_risc = 0;
1765 struct bttv_crop c;
1766 int norm;
1767 int rc;
1768
1769 /* check settings */
1770 if (NULL == fmt)
1771 return -EINVAL;
1772 if (fmt->btformat == BT848_COLOR_FMT_RAW) {
1773 width = RAW_BPL;
1774 height = RAW_LINES*2;
1775 if (width*height > buf->vb.bsize)
1776 return -EINVAL;
1777 buf->vb.size = buf->vb.bsize;
1778
1779 /* Make sure tvnorm and vbi_end remain consistent
1780 until we're done. */
1781 mutex_lock(&btv->lock);
1782
1783 norm = btv->tvnorm;
1784
1785 /* In this mode capturing always starts at defrect.top
1786 (default VDELAY), ignoring cropping parameters. */
1787 if (btv->vbi_end > bttv_tvnorms[norm].cropcap.defrect.top) {
1788 mutex_unlock(&btv->lock);
1789 return -EINVAL;
1790 }
1791
1792 mutex_unlock(&btv->lock);
1793
1794 c.rect = bttv_tvnorms[norm].cropcap.defrect;
1795 } else {
1796 mutex_lock(&btv->lock);
1797
1798 norm = btv->tvnorm;
1799 c = btv->crop[!!fh->do_crop];
1800
1801 mutex_unlock(&btv->lock);
1802
1803 if (width < c.min_scaled_width ||
1804 width > c.max_scaled_width ||
1805 height < c.min_scaled_height)
1806 return -EINVAL;
1807
1808 switch (field) {
1809 case V4L2_FIELD_TOP:
1810 case V4L2_FIELD_BOTTOM:
1811 case V4L2_FIELD_ALTERNATE:
1812 /* btv->crop counts frame lines. Max. scale
1813 factor is 16:1 for frames, 8:1 for fields. */
1814 if (height * 2 > c.max_scaled_height)
1815 return -EINVAL;
1816 break;
1817
1818 default:
1819 if (height > c.max_scaled_height)
1820 return -EINVAL;
1821 break;
1822 }
1823
1824 buf->vb.size = (width * height * fmt->depth) >> 3;
1825 if (0 != buf->vb.baddr && buf->vb.bsize < buf->vb.size)
1826 return -EINVAL;
1827 }
1828
1829 /* alloc + fill struct bttv_buffer (if changed) */
1830 if (buf->vb.width != width || buf->vb.height != height ||
1831 buf->vb.field != field ||
1832 buf->tvnorm != norm || buf->fmt != fmt ||
1833 buf->crop.top != c.rect.top ||
1834 buf->crop.left != c.rect.left ||
1835 buf->crop.width != c.rect.width ||
1836 buf->crop.height != c.rect.height) {
1837 buf->vb.width = width;
1838 buf->vb.height = height;
1839 buf->vb.field = field;
1840 buf->tvnorm = norm;
1841 buf->fmt = fmt;
1842 buf->crop = c.rect;
1843 redo_dma_risc = 1;
1844 }
1845
1846 /* alloc risc memory */
1847 if (STATE_NEEDS_INIT == buf->vb.state) {
1848 redo_dma_risc = 1;
1849 if (0 != (rc = videobuf_iolock(q,&buf->vb,&btv->fbuf)))
1850 goto fail;
1851 }
1852
1853 if (redo_dma_risc)
1854 if (0 != (rc = bttv_buffer_risc(btv,buf)))
1855 goto fail;
1856
1857 buf->vb.state = STATE_PREPARED;
1858 return 0;
1859
1860 fail:
1861 bttv_dma_free(q,btv,buf);
1862 return rc;
1863 }
1864
1865 static int
1866 buffer_setup(struct videobuf_queue *q, unsigned int *count, unsigned int *size)
1867 {
1868 struct bttv_fh *fh = q->priv_data;
1869
1870 *size = fh->fmt->depth*fh->width*fh->height >> 3;
1871 if (0 == *count)
1872 *count = gbuffers;
1873 while (*size * *count > gbuffers * gbufsize)
1874 (*count)--;
1875 return 0;
1876 }
1877
1878 static int
1879 buffer_prepare(struct videobuf_queue *q, struct videobuf_buffer *vb,
1880 enum v4l2_field field)
1881 {
1882 struct bttv_buffer *buf = container_of(vb,struct bttv_buffer,vb);
1883 struct bttv_fh *fh = q->priv_data;
1884
1885 return bttv_prepare_buffer(q,fh->btv, buf, fh->fmt,
1886 fh->width, fh->height, field);
1887 }
1888
1889 static void
1890 buffer_queue(struct videobuf_queue *q, struct videobuf_buffer *vb)
1891 {
1892 struct bttv_buffer *buf = container_of(vb,struct bttv_buffer,vb);
1893 struct bttv_fh *fh = q->priv_data;
1894 struct bttv *btv = fh->btv;
1895
1896 buf->vb.state = STATE_QUEUED;
1897 list_add_tail(&buf->vb.queue,&btv->capture);
1898 if (!btv->curr.frame_irq) {
1899 btv->loop_irq |= 1;
1900 bttv_set_dma(btv, 0x03);
1901 }
1902 }
1903
1904 static void buffer_release(struct videobuf_queue *q, struct videobuf_buffer *vb)
1905 {
1906 struct bttv_buffer *buf = container_of(vb,struct bttv_buffer,vb);
1907 struct bttv_fh *fh = q->priv_data;
1908
1909 bttv_dma_free(q,fh->btv,buf);
1910 }
1911
1912 static struct videobuf_queue_ops bttv_video_qops = {
1913 .buf_setup = buffer_setup,
1914 .buf_prepare = buffer_prepare,
1915 .buf_queue = buffer_queue,
1916 .buf_release = buffer_release,
1917 };
1918
1919 static int bttv_common_ioctls(struct bttv *btv, unsigned int cmd, void *arg)
1920 {
1921 switch (cmd) {
1922 case BTTV_VERSION:
1923 return BTTV_VERSION_CODE;
1924
1925 /* *** v4l1 *** ************************************************ */
1926 case VIDIOCGFREQ:
1927 {
1928 unsigned long *freq = arg;
1929 *freq = btv->freq;
1930 return 0;
1931 }
1932 case VIDIOCSFREQ:
1933 {
1934 struct v4l2_frequency freq;
1935
1936 memset(&freq, 0, sizeof(freq));
1937 freq.frequency = *(unsigned long *)arg;
1938 mutex_lock(&btv->lock);
1939 freq.type = btv->radio_user ? V4L2_TUNER_RADIO : V4L2_TUNER_ANALOG_TV;
1940 btv->freq = *(unsigned long *)arg;
1941 bttv_call_i2c_clients(btv,VIDIOC_S_FREQUENCY,&freq);
1942 if (btv->has_matchbox && btv->radio_user)
1943 tea5757_set_freq(btv,*(unsigned long *)arg);
1944 mutex_unlock(&btv->lock);
1945 return 0;
1946 }
1947
1948 case VIDIOCGTUNER:
1949 {
1950 struct video_tuner *v = arg;
1951
1952 if (UNSET == bttv_tvcards[btv->c.type].tuner)
1953 return -EINVAL;
1954 if (v->tuner) /* Only tuner 0 */
1955 return -EINVAL;
1956 strcpy(v->name, "Television");
1957 v->rangelow = 0;
1958 v->rangehigh = 0x7FFFFFFF;
1959 v->flags = VIDEO_TUNER_PAL|VIDEO_TUNER_NTSC|VIDEO_TUNER_SECAM;
1960 v->mode = btv->tvnorm;
1961 v->signal = (btread(BT848_DSTATUS)&BT848_DSTATUS_HLOC) ? 0xFFFF : 0;
1962 bttv_call_i2c_clients(btv,cmd,v);
1963 return 0;
1964 }
1965 case VIDIOCSTUNER:
1966 {
1967 struct video_tuner *v = arg;
1968
1969 if (v->tuner) /* Only tuner 0 */
1970 return -EINVAL;
1971 if (v->mode >= BTTV_TVNORMS)
1972 return -EINVAL;
1973
1974 mutex_lock(&btv->lock);
1975 set_tvnorm(btv,v->mode);
1976 bttv_call_i2c_clients(btv,cmd,v);
1977 mutex_unlock(&btv->lock);
1978 return 0;
1979 }
1980
1981 case VIDIOCGCHAN:
1982 {
1983 struct video_channel *v = arg;
1984 unsigned int channel = v->channel;
1985
1986 if (channel >= bttv_tvcards[btv->c.type].video_inputs)
1987 return -EINVAL;
1988 v->tuners=0;
1989 v->flags = VIDEO_VC_AUDIO;
1990 v->type = VIDEO_TYPE_CAMERA;
1991 v->norm = btv->tvnorm;
1992 if (channel == bttv_tvcards[btv->c.type].tuner) {
1993 strcpy(v->name,"Television");
1994 v->flags|=VIDEO_VC_TUNER;
1995 v->type=VIDEO_TYPE_TV;
1996 v->tuners=1;
1997 } else if (channel == btv->svhs) {
1998 strcpy(v->name,"S-Video");
1999 } else {
2000 sprintf(v->name,"Composite%d",channel);
2001 }
2002 return 0;
2003 }
2004 case VIDIOCSCHAN:
2005 {
2006 struct video_channel *v = arg;
2007 unsigned int channel = v->channel;
2008
2009 if (channel >= bttv_tvcards[btv->c.type].video_inputs)
2010 return -EINVAL;
2011 if (v->norm >= BTTV_TVNORMS)
2012 return -EINVAL;
2013
2014 mutex_lock(&btv->lock);
2015 if (channel == btv->input &&
2016 v->norm == btv->tvnorm) {
2017 /* nothing to do */
2018 mutex_unlock(&btv->lock);
2019 return 0;
2020 }
2021
2022 set_input(btv, v->channel, v->norm);
2023 mutex_unlock(&btv->lock);
2024 return 0;
2025 }
2026
2027 case VIDIOCGAUDIO:
2028 {
2029 struct video_audio *v = arg;
2030
2031 memset(v,0,sizeof(*v));
2032 strcpy(v->name,"Television");
2033 v->flags |= VIDEO_AUDIO_MUTABLE;
2034 v->mode = VIDEO_SOUND_MONO;
2035
2036 mutex_lock(&btv->lock);
2037 bttv_call_i2c_clients(btv,cmd,v);
2038
2039 /* card specific hooks */
2040 if (btv->audio_hook)
2041 btv->audio_hook(btv,v,0);
2042
2043 mutex_unlock(&btv->lock);
2044 return 0;
2045 }
2046 case VIDIOCSAUDIO:
2047 {
2048 struct video_audio *v = arg;
2049 unsigned int audio = v->audio;
2050
2051 if (audio >= bttv_tvcards[btv->c.type].audio_inputs)
2052 return -EINVAL;
2053
2054 mutex_lock(&btv->lock);
2055 audio_mute(btv, (v->flags&VIDEO_AUDIO_MUTE) ? 1 : 0);
2056 bttv_call_i2c_clients(btv,cmd,v);
2057
2058 /* card specific hooks */
2059 if (btv->audio_hook)
2060 btv->audio_hook(btv,v,1);
2061
2062 mutex_unlock(&btv->lock);
2063 return 0;
2064 }
2065
2066 /* *** v4l2 *** ************************************************ */
2067 case VIDIOC_ENUMSTD:
2068 {
2069 struct v4l2_standard *e = arg;
2070 unsigned int index = e->index;
2071
2072 if (index >= BTTV_TVNORMS)
2073 return -EINVAL;
2074 v4l2_video_std_construct(e, bttv_tvnorms[e->index].v4l2_id,
2075 bttv_tvnorms[e->index].name);
2076 e->index = index;
2077 return 0;
2078 }
2079 case VIDIOC_G_STD:
2080 {
2081 v4l2_std_id *id = arg;
2082 *id = bttv_tvnorms[btv->tvnorm].v4l2_id;
2083 return 0;
2084 }
2085 case VIDIOC_S_STD:
2086 {
2087 v4l2_std_id *id = arg;
2088 unsigned int i;
2089
2090 for (i = 0; i < BTTV_TVNORMS; i++)
2091 if (*id & bttv_tvnorms[i].v4l2_id)
2092 break;
2093 if (i == BTTV_TVNORMS)
2094 return -EINVAL;
2095
2096 mutex_lock(&btv->lock);
2097 set_tvnorm(btv,i);
2098 i2c_vidiocschan(btv);
2099 mutex_unlock(&btv->lock);
2100 return 0;
2101 }
2102 case VIDIOC_QUERYSTD:
2103 {
2104 v4l2_std_id *id = arg;
2105
2106 if (btread(BT848_DSTATUS) & BT848_DSTATUS_NUML)
2107 *id = V4L2_STD_625_50;
2108 else
2109 *id = V4L2_STD_525_60;
2110 return 0;
2111 }
2112
2113 case VIDIOC_ENUMINPUT:
2114 {
2115 struct v4l2_input *i = arg;
2116 unsigned int n;
2117
2118 n = i->index;
2119 if (n >= bttv_tvcards[btv->c.type].video_inputs)
2120 return -EINVAL;
2121 memset(i,0,sizeof(*i));
2122 i->index = n;
2123 i->type = V4L2_INPUT_TYPE_CAMERA;
2124 i->audioset = 1;
2125 if (i->index == bttv_tvcards[btv->c.type].tuner) {
2126 sprintf(i->name, "Television");
2127 i->type = V4L2_INPUT_TYPE_TUNER;
2128 i->tuner = 0;
2129 } else if (i->index == btv->svhs) {
2130 sprintf(i->name, "S-Video");
2131 } else {
2132 sprintf(i->name,"Composite%d",i->index);
2133 }
2134 if (i->index == btv->input) {
2135 __u32 dstatus = btread(BT848_DSTATUS);
2136 if (0 == (dstatus & BT848_DSTATUS_PRES))
2137 i->status |= V4L2_IN_ST_NO_SIGNAL;
2138 if (0 == (dstatus & BT848_DSTATUS_HLOC))
2139 i->status |= V4L2_IN_ST_NO_H_LOCK;
2140 }
2141 for (n = 0; n < BTTV_TVNORMS; n++)
2142 i->std |= bttv_tvnorms[n].v4l2_id;
2143 return 0;
2144 }
2145 case VIDIOC_G_INPUT:
2146 {
2147 int *i = arg;
2148 *i = btv->input;
2149 return 0;
2150 }
2151 case VIDIOC_S_INPUT:
2152 {
2153 unsigned int *i = arg;
2154
2155 if (*i > bttv_tvcards[btv->c.type].video_inputs)
2156 return -EINVAL;
2157 mutex_lock(&btv->lock);
2158 set_input(btv, *i, btv->tvnorm);
2159 mutex_unlock(&btv->lock);
2160 return 0;
2161 }
2162
2163 case VIDIOC_G_TUNER:
2164 {
2165 struct v4l2_tuner *t = arg;
2166
2167 if (UNSET == bttv_tvcards[btv->c.type].tuner)
2168 return -EINVAL;
2169 if (0 != t->index)
2170 return -EINVAL;
2171 mutex_lock(&btv->lock);
2172 memset(t,0,sizeof(*t));
2173 t->rxsubchans = V4L2_TUNER_SUB_MONO;
2174 bttv_call_i2c_clients(btv, VIDIOC_G_TUNER, t);
2175 strcpy(t->name, "Television");
2176 t->capability = V4L2_TUNER_CAP_NORM;
2177 t->type = V4L2_TUNER_ANALOG_TV;
2178 if (btread(BT848_DSTATUS)&BT848_DSTATUS_HLOC)
2179 t->signal = 0xffff;
2180
2181 if (btv->audio_hook) {
2182 /* Hmmm ... */
2183 struct video_audio va;
2184 memset(&va, 0, sizeof(struct video_audio));
2185 btv->audio_hook(btv,&va,0);
2186 t->audmode = V4L2_TUNER_MODE_MONO;
2187 t->rxsubchans = V4L2_TUNER_SUB_MONO;
2188 if(va.mode & VIDEO_SOUND_STEREO) {
2189 t->audmode = V4L2_TUNER_MODE_STEREO;
2190 t->rxsubchans = V4L2_TUNER_SUB_STEREO;
2191 }
2192 if(va.mode & VIDEO_SOUND_LANG2) {
2193 t->audmode = V4L2_TUNER_MODE_LANG1;
2194 t->rxsubchans = V4L2_TUNER_SUB_LANG1
2195 | V4L2_TUNER_SUB_LANG2;
2196 }
2197 }
2198 /* FIXME: fill capability+audmode */
2199 mutex_unlock(&btv->lock);
2200 return 0;
2201 }
2202 case VIDIOC_S_TUNER:
2203 {
2204 struct v4l2_tuner *t = arg;
2205
2206 if (UNSET == bttv_tvcards[btv->c.type].tuner)
2207 return -EINVAL;
2208 if (0 != t->index)
2209 return -EINVAL;
2210 mutex_lock(&btv->lock);
2211 bttv_call_i2c_clients(btv, VIDIOC_S_TUNER, t);
2212 if (btv->audio_hook) {
2213 struct video_audio va;
2214 memset(&va, 0, sizeof(struct video_audio));
2215 if (t->audmode == V4L2_TUNER_MODE_MONO)
2216 va.mode = VIDEO_SOUND_MONO;
2217 else if (t->audmode == V4L2_TUNER_MODE_STEREO ||
2218 t->audmode == V4L2_TUNER_MODE_LANG1_LANG2)
2219 va.mode = VIDEO_SOUND_STEREO;
2220 else if (t->audmode == V4L2_TUNER_MODE_LANG1)
2221 va.mode = VIDEO_SOUND_LANG1;
2222 else if (t->audmode == V4L2_TUNER_MODE_LANG2)
2223 va.mode = VIDEO_SOUND_LANG2;
2224 btv->audio_hook(btv,&va,1);
2225 }
2226 mutex_unlock(&btv->lock);
2227 return 0;
2228 }
2229
2230 case VIDIOC_G_FREQUENCY:
2231 {
2232 struct v4l2_frequency *f = arg;
2233
2234 memset(f,0,sizeof(*f));
2235 f->type = V4L2_TUNER_ANALOG_TV;
2236 f->frequency = btv->freq;
2237 return 0;
2238 }
2239 case VIDIOC_S_FREQUENCY:
2240 {
2241 struct v4l2_frequency *f = arg;
2242
2243 if (unlikely(f->tuner != 0))
2244 return -EINVAL;
2245 if (unlikely (f->type != V4L2_TUNER_ANALOG_TV))
2246 return -EINVAL;
2247 mutex_lock(&btv->lock);
2248 btv->freq = f->frequency;
2249 bttv_call_i2c_clients(btv,VIDIOC_S_FREQUENCY,f);
2250 if (btv->has_matchbox && btv->radio_user)
2251 tea5757_set_freq(btv,btv->freq);
2252 mutex_unlock(&btv->lock);
2253 return 0;
2254 }
2255 case VIDIOC_LOG_STATUS:
2256 {
2257 printk(KERN_INFO "bttv%d: ================= START STATUS CARD #%d =================\n", btv->c.nr, btv->c.nr);
2258 bttv_call_i2c_clients(btv, VIDIOC_LOG_STATUS, NULL);
2259 printk(KERN_INFO "bttv%d: ================== END STATUS CARD #%d ==================\n", btv->c.nr, btv->c.nr);
2260 return 0;
2261 }
2262 #ifdef CONFIG_VIDEO_ADV_DEBUG
2263 case VIDIOC_DBG_G_REGISTER:
2264 case VIDIOC_DBG_S_REGISTER:
2265 {
2266 struct v4l2_register *reg = arg;
2267 if (!capable(CAP_SYS_ADMIN))
2268 return -EPERM;
2269 if (!v4l2_chip_match_host(reg->match_type, reg->match_chip))
2270 return -EINVAL;
2271 /* bt848 has a 12-bit register space */
2272 reg->reg &= 0xfff;
2273 if (cmd == VIDIOC_DBG_G_REGISTER)
2274 reg->val = btread(reg->reg);
2275 else
2276 btwrite(reg->val, reg->reg);
2277 return 0;
2278 }
2279 #endif
2280
2281 default:
2282 return -ENOIOCTLCMD;
2283
2284 }
2285 return 0;
2286 }
2287
2288 /* Given cropping boundaries b and the scaled width and height of a
2289 single field or frame, which must not exceed hardware limits, this
2290 function adjusts the cropping parameters c. */
2291 static void
2292 bttv_crop_adjust (struct bttv_crop * c,
2293 const struct v4l2_rect * b,
2294 __s32 width,
2295 __s32 height,
2296 enum v4l2_field field)
2297 {
2298 __s32 frame_height = height << !V4L2_FIELD_HAS_BOTH(field);
2299 __s32 max_left;
2300 __s32 max_top;
2301
2302 if (width < c->min_scaled_width) {
2303 /* Max. hor. scale factor 16:1. */
2304 c->rect.width = width * 16;
2305 } else if (width > c->max_scaled_width) {
2306 /* Min. hor. scale factor 1:1. */
2307 c->rect.width = width;
2308
2309 max_left = b->left + b->width - width;
2310 max_left = min(max_left, (__s32) MAX_HDELAY);
2311 if (c->rect.left > max_left)
2312 c->rect.left = max_left;
2313 }
2314
2315 if (height < c->min_scaled_height) {
2316 /* Max. vert. scale factor 16:1, single fields 8:1. */
2317 c->rect.height = height * 16;
2318 } else if (frame_height > c->max_scaled_height) {
2319 /* Min. vert. scale factor 1:1.
2320 Top and height count field lines times two. */
2321 c->rect.height = (frame_height + 1) & ~1;
2322
2323 max_top = b->top + b->height - c->rect.height;
2324 if (c->rect.top > max_top)
2325 c->rect.top = max_top;
2326 }
2327
2328 bttv_crop_calc_limits(c);
2329 }
2330
2331 /* Returns an error if scaling to a frame or single field with the given
2332 width and height is not possible with the current cropping parameters
2333 and width aligned according to width_mask. If adjust_size is TRUE the
2334 function may adjust the width and/or height instead, rounding width
2335 to (width + width_bias) & width_mask. If adjust_crop is TRUE it may
2336 also adjust the current cropping parameters to get closer to the
2337 desired image size. */
2338 static int
2339 limit_scaled_size (struct bttv_fh * fh,
2340 __s32 * width,
2341 __s32 * height,
2342 enum v4l2_field field,
2343 unsigned int width_mask,
2344 unsigned int width_bias,
2345 int adjust_size,
2346 int adjust_crop)
2347 {
2348 struct bttv *btv = fh->btv;
2349 const struct v4l2_rect *b;
2350 struct bttv_crop *c;
2351 __s32 min_width;
2352 __s32 min_height;
2353 __s32 max_width;
2354 __s32 max_height;
2355 int rc;
2356
2357 BUG_ON((int) width_mask >= 0 ||
2358 width_bias >= (unsigned int) -width_mask);
2359
2360 /* Make sure tvnorm, vbi_end and the current cropping parameters
2361 remain consistent until we're done. */
2362 mutex_lock(&btv->lock);
2363
2364 b = &bttv_tvnorms[btv->tvnorm].cropcap.bounds;
2365
2366 /* Do crop - use current, don't - use default parameters. */
2367 c = &btv->crop[!!fh->do_crop];
2368
2369 if (fh->do_crop
2370 && adjust_size
2371 && adjust_crop
2372 && !locked_btres(btv, VIDEO_RESOURCES)) {
2373 min_width = 48;
2374 min_height = 32;
2375
2376 /* We cannot scale up. When the scaled image is larger
2377 than crop.rect we adjust the crop.rect as required
2378 by the V4L2 spec, hence cropcap.bounds are our limit. */
2379 max_width = min(b->width, (__s32) MAX_HACTIVE);
2380 max_height = b->height;
2381
2382 /* We cannot capture the same line as video and VBI data.
2383 Note btv->vbi_end is really a minimum, see
2384 bttv_vbi_try_fmt(). */
2385 if (btv->vbi_end > b->top) {
2386 max_height -= btv->vbi_end - b->top;
2387 rc = -EBUSY;
2388 if (min_height > max_height)
2389 goto fail;
2390 }
2391 } else {
2392 rc = -EBUSY;
2393 if (btv->vbi_end > c->rect.top)
2394 goto fail;
2395
2396 min_width = c->min_scaled_width;
2397 min_height = c->min_scaled_height;
2398 max_width = c->max_scaled_width;
2399 max_height = c->max_scaled_height;
2400
2401 adjust_crop = 0;
2402 }
2403
2404 min_width = (min_width - width_mask - 1) & width_mask;
2405 max_width = max_width & width_mask;
2406
2407 /* Max. scale factor is 16:1 for frames, 8:1 for fields. */
2408 min_height = min_height;
2409 /* Min. scale factor is 1:1. */
2410 max_height >>= !V4L2_FIELD_HAS_BOTH(field);
2411
2412 if (adjust_size) {
2413 *width = clamp(*width, min_width, max_width);
2414 *height = clamp(*height, min_height, max_height);
2415
2416 /* Round after clamping to avoid overflow. */
2417 *width = (*width + width_bias) & width_mask;
2418
2419 if (adjust_crop) {
2420 bttv_crop_adjust(c, b, *width, *height, field);
2421
2422 if (btv->vbi_end > c->rect.top) {
2423 /* Move the crop window out of the way. */
2424 c->rect.top = btv->vbi_end;
2425 }
2426 }
2427 } else {
2428 rc = -EINVAL;
2429 if (*width < min_width ||
2430 *height < min_height ||
2431 *width > max_width ||
2432 *height > max_height ||
2433 0 != (*width & ~width_mask))
2434 goto fail;
2435 }
2436
2437 rc = 0; /* success */
2438
2439 fail:
2440 mutex_unlock(&btv->lock);
2441
2442 return rc;
2443 }
2444
2445 /* Returns an error if the given overlay window dimensions are not
2446 possible with the current cropping parameters. If adjust_size is
2447 TRUE the function may adjust the window width and/or height
2448 instead, however it always rounds the horizontal position and
2449 width as btcx_align() does. If adjust_crop is TRUE the function
2450 may also adjust the current cropping parameters to get closer
2451 to the desired window size. */
2452 static int
2453 verify_window (struct bttv_fh * fh,
2454 struct v4l2_window * win,
2455 int adjust_size,
2456 int adjust_crop)
2457 {
2458 enum v4l2_field field;
2459 unsigned int width_mask;
2460 int rc;
2461
2462 if (win->w.width < 48 || win->w.height < 32)
2463 return -EINVAL;
2464 if (win->clipcount > 2048)
2465 return -EINVAL;
2466
2467 field = win->field;
2468
2469 if (V4L2_FIELD_ANY == field) {
2470 __s32 height2;
2471
2472 height2 = fh->btv->crop[!!fh->do_crop].rect.height >> 1;
2473 field = (win->w.height > height2)
2474 ? V4L2_FIELD_INTERLACED
2475 : V4L2_FIELD_TOP;
2476 }
2477 switch (field) {
2478 case V4L2_FIELD_TOP:
2479 case V4L2_FIELD_BOTTOM:
2480 case V4L2_FIELD_INTERLACED:
2481 break;
2482 default:
2483 return -EINVAL;
2484 }
2485
2486 /* 4-byte alignment. */
2487 if (NULL == fh->ovfmt)
2488 return -EINVAL;
2489 width_mask = ~0;
2490 switch (fh->ovfmt->depth) {
2491 case 8:
2492 case 24:
2493 width_mask = ~3;
2494 break;
2495 case 16:
2496 width_mask = ~1;
2497 break;
2498 case 32:
2499 break;
2500 default:
2501 BUG();
2502 }
2503
2504 win->w.width -= win->w.left & ~width_mask;
2505 win->w.left = (win->w.left - width_mask - 1) & width_mask;
2506
2507 rc = limit_scaled_size(fh, &win->w.width, &win->w.height,
2508 field, width_mask,
2509 /* width_bias: round down */ 0,
2510 adjust_size, adjust_crop);
2511 if (0 != rc)
2512 return rc;
2513
2514 win->field = field;
2515 return 0;
2516 }
2517
2518 static int setup_window(struct bttv_fh *fh, struct bttv *btv,
2519 struct v4l2_window *win, int fixup)
2520 {
2521 struct v4l2_clip *clips = NULL;
2522 int n,size,retval = 0;
2523
2524 if (NULL == fh->ovfmt)
2525 return -EINVAL;
2526 if (!(fh->ovfmt->flags & FORMAT_FLAGS_PACKED))
2527 return -EINVAL;
2528 retval = verify_window(fh, win,
2529 /* adjust_size */ fixup,
2530 /* adjust_crop */ fixup);
2531 if (0 != retval)
2532 return retval;
2533
2534 /* copy clips -- luckily v4l1 + v4l2 are binary
2535 compatible here ...*/
2536 n = win->clipcount;
2537 size = sizeof(*clips)*(n+4);
2538 clips = kmalloc(size,GFP_KERNEL);
2539 if (NULL == clips)
2540 return -ENOMEM;
2541 if (n > 0) {
2542 if (copy_from_user(clips,win->clips,sizeof(struct v4l2_clip)*n)) {
2543 kfree(clips);
2544 return -EFAULT;
2545 }
2546 }
2547 /* clip against screen */
2548 if (NULL != btv->fbuf.base)
2549 n = btcx_screen_clips(btv->fbuf.fmt.width, btv->fbuf.fmt.height,
2550 &win->w, clips, n);
2551 btcx_sort_clips(clips,n);
2552
2553 /* 4-byte alignments */
2554 switch (fh->ovfmt->depth) {
2555 case 8:
2556 case 24:
2557 btcx_align(&win->w, clips, n, 3);
2558 break;
2559 case 16:
2560 btcx_align(&win->w, clips, n, 1);
2561 break;
2562 case 32:
2563 /* no alignment fixups needed */
2564 break;
2565 default:
2566 BUG();
2567 }
2568
2569 mutex_lock(&fh->cap.lock);
2570 kfree(fh->ov.clips);
2571 fh->ov.clips = clips;
2572 fh->ov.nclips = n;
2573
2574 fh->ov.w = win->w;
2575 fh->ov.field = win->field;
2576 fh->ov.setup_ok = 1;
2577 btv->init.ov.w.width = win->w.width;
2578 btv->init.ov.w.height = win->w.height;
2579 btv->init.ov.field = win->field;
2580
2581 /* update overlay if needed */
2582 retval = 0;
2583 if (check_btres(fh, RESOURCE_OVERLAY)) {
2584 struct bttv_buffer *new;
2585
2586 new = videobuf_pci_alloc(sizeof(*new));
2587 new->crop = btv->crop[!!fh->do_crop].rect;
2588 bttv_overlay_risc(btv, &fh->ov, fh->ovfmt, new);
2589 retval = bttv_switch_overlay(btv,fh,new);
2590 }
2591 mutex_unlock(&fh->cap.lock);
2592 return retval;
2593 }
2594
2595 /* ----------------------------------------------------------------------- */
2596
2597 static struct videobuf_queue* bttv_queue(struct bttv_fh *fh)
2598 {
2599 struct videobuf_queue* q = NULL;
2600
2601 switch (fh->type) {
2602 case V4L2_BUF_TYPE_VIDEO_CAPTURE:
2603 q = &fh->cap;
2604 break;
2605 case V4L2_BUF_TYPE_VBI_CAPTURE:
2606 q = &fh->vbi;
2607 break;
2608 default:
2609 BUG();
2610 }
2611 return q;
2612 }
2613
2614 static int bttv_resource(struct bttv_fh *fh)
2615 {
2616 int res = 0;
2617
2618 switch (fh->type) {
2619 case V4L2_BUF_TYPE_VIDEO_CAPTURE:
2620 res = RESOURCE_VIDEO_STREAM;
2621 break;
2622 case V4L2_BUF_TYPE_VBI_CAPTURE:
2623 res = RESOURCE_VBI;
2624 break;
2625 default:
2626 BUG();
2627 }
2628 return res;
2629 }
2630
2631 static int bttv_switch_type(struct bttv_fh *fh, enum v4l2_buf_type type)
2632 {
2633 struct videobuf_queue *q = bttv_queue(fh);
2634 int res = bttv_resource(fh);
2635
2636 if (check_btres(fh,res))
2637 return -EBUSY;
2638 if (videobuf_queue_is_busy(q))
2639 return -EBUSY;
2640 fh->type = type;
2641 return 0;
2642 }
2643
2644 static void
2645 pix_format_set_size (struct v4l2_pix_format * f,
2646 const struct bttv_format * fmt,
2647 unsigned int width,
2648 unsigned int height)
2649 {
2650 f->width = width;
2651 f->height = height;
2652
2653 if (fmt->flags & FORMAT_FLAGS_PLANAR) {
2654 f->bytesperline = width; /* Y plane */
2655 f->sizeimage = (width * height * fmt->depth) >> 3;
2656 } else {
2657 f->bytesperline = (width * fmt->depth) >> 3;
2658 f->sizeimage = height * f->bytesperline;
2659 }
2660 }
2661
2662 static int bttv_g_fmt(struct bttv_fh *fh, struct v4l2_format *f)
2663 {
2664 switch (f->type) {
2665 case V4L2_BUF_TYPE_VIDEO_CAPTURE:
2666 memset(&f->fmt.pix,0,sizeof(struct v4l2_pix_format));
2667 pix_format_set_size (&f->fmt.pix, fh->fmt,
2668 fh->width, fh->height);
2669 f->fmt.pix.field = fh->cap.field;
2670 f->fmt.pix.pixelformat = fh->fmt->fourcc;
2671 return 0;
2672 case V4L2_BUF_TYPE_VIDEO_OVERLAY:
2673 memset(&f->fmt.win,0,sizeof(struct v4l2_window));
2674 f->fmt.win.w = fh->ov.w;
2675 f->fmt.win.field = fh->ov.field;
2676 return 0;
2677 case V4L2_BUF_TYPE_VBI_CAPTURE:
2678 bttv_vbi_get_fmt(fh, &f->fmt.vbi);
2679 return 0;
2680 default:
2681 return -EINVAL;
2682 }
2683 }
2684
2685 static int bttv_try_fmt(struct bttv_fh *fh, struct bttv *btv,
2686 struct v4l2_format *f, int adjust_crop)
2687 {
2688 switch (f->type) {
2689 case V4L2_BUF_TYPE_VIDEO_CAPTURE:
2690 {
2691 const struct bttv_format *fmt;
2692 enum v4l2_field field;
2693 __s32 width, height;
2694 int rc;
2695
2696 fmt = format_by_fourcc(f->fmt.pix.pixelformat);
2697 if (NULL == fmt)
2698 return -EINVAL;
2699
2700 field = f->fmt.pix.field;
2701 if (V4L2_FIELD_ANY == field) {
2702 __s32 height2;
2703
2704 height2 = btv->crop[!!fh->do_crop].rect.height >> 1;
2705 field = (f->fmt.pix.height > height2)
2706 ? V4L2_FIELD_INTERLACED
2707 : V4L2_FIELD_BOTTOM;
2708 }
2709 if (V4L2_FIELD_SEQ_BT == field)
2710 field = V4L2_FIELD_SEQ_TB;
2711 switch (field) {
2712 case V4L2_FIELD_TOP:
2713 case V4L2_FIELD_BOTTOM:
2714 case V4L2_FIELD_ALTERNATE:
2715 case V4L2_FIELD_INTERLACED:
2716 break;
2717 case V4L2_FIELD_SEQ_TB:
2718 if (fmt->flags & FORMAT_FLAGS_PLANAR)
2719 return -EINVAL;
2720 break;
2721 default:
2722 return -EINVAL;
2723 }
2724
2725 width = f->fmt.pix.width;
2726 height = f->fmt.pix.height;
2727
2728 rc = limit_scaled_size(fh, &width, &height, field,
2729 /* width_mask: 4 pixels */ ~3,
2730 /* width_bias: nearest */ 2,
2731 /* adjust_size */ 1,
2732 adjust_crop);
2733 if (0 != rc)
2734 return rc;
2735
2736 /* update data for the application */
2737 f->fmt.pix.field = field;
2738 pix_format_set_size(&f->fmt.pix, fmt, width, height);
2739
2740 return 0;
2741 }
2742 case V4L2_BUF_TYPE_VIDEO_OVERLAY:
2743 return verify_window(fh, &f->fmt.win,
2744 /* adjust_size */ 1,
2745 /* adjust_crop */ 0);
2746 case V4L2_BUF_TYPE_VBI_CAPTURE:
2747 return bttv_vbi_try_fmt(fh, &f->fmt.vbi);
2748 default:
2749 return -EINVAL;
2750 }
2751 }
2752
2753 static int bttv_s_fmt(struct bttv_fh *fh, struct bttv *btv,
2754 struct v4l2_format *f)
2755 {
2756 int retval;
2757
2758 switch (f->type) {
2759 case V4L2_BUF_TYPE_VIDEO_CAPTURE:
2760 {
2761 const struct bttv_format *fmt;
2762
2763 retval = bttv_switch_type(fh,f->type);
2764 if (0 != retval)
2765 return retval;
2766 retval = bttv_try_fmt(fh,btv,f, /* adjust_crop */ 1);
2767 if (0 != retval)
2768 return retval;
2769 fmt = format_by_fourcc(f->fmt.pix.pixelformat);
2770
2771 /* update our state informations */
2772 mutex_lock(&fh->cap.lock);
2773 fh->fmt = fmt;
2774 fh->cap.field = f->fmt.pix.field;
2775 fh->cap.last = V4L2_FIELD_NONE;
2776 fh->width = f->fmt.pix.width;
2777 fh->height = f->fmt.pix.height;
2778 btv->init.fmt = fmt;
2779 btv->init.width = f->fmt.pix.width;
2780 btv->init.height = f->fmt.pix.height;
2781 mutex_unlock(&fh->cap.lock);
2782
2783 return 0;
2784 }
2785 case V4L2_BUF_TYPE_VIDEO_OVERLAY:
2786 if (no_overlay > 0) {
2787 printk ("V4L2_BUF_TYPE_VIDEO_OVERLAY: no_overlay\n");
2788 return -EINVAL;
2789 }
2790 return setup_window(fh, btv, &f->fmt.win, 1);
2791 case V4L2_BUF_TYPE_VBI_CAPTURE:
2792 retval = bttv_switch_type(fh,f->type);
2793 if (0 != retval)
2794 return retval;
2795 return bttv_vbi_set_fmt(fh, &f->fmt.vbi);
2796 default:
2797 return -EINVAL;
2798 }
2799 }
2800
2801 static int bttv_do_ioctl(struct inode *inode, struct file *file,
2802 unsigned int cmd, void *arg)
2803 {
2804 struct bttv_fh *fh = file->private_data;
2805 struct bttv *btv = fh->btv;
2806 unsigned long flags;
2807 int retval = 0;
2808
2809 if (bttv_debug > 1)
2810 v4l_print_ioctl(btv->c.name, cmd);
2811
2812 if (btv->errors)
2813 bttv_reinit_bt848(btv);
2814
2815 switch (cmd) {
2816 case VIDIOCSFREQ:
2817 case VIDIOCSTUNER:
2818 case VIDIOCSCHAN:
2819 case VIDIOC_S_CTRL:
2820 case VIDIOC_S_STD:
2821 case VIDIOC_S_INPUT:
2822 case VIDIOC_S_TUNER:
2823 case VIDIOC_S_FREQUENCY:
2824 retval = v4l2_prio_check(&btv->prio,&fh->prio);
2825 if (0 != retval)
2826 return retval;
2827 };
2828
2829 switch (cmd) {
2830
2831 /* *** v4l1 *** ************************************************ */
2832 case VIDIOCGCAP:
2833 {
2834 struct video_capability *cap = arg;
2835
2836 memset(cap,0,sizeof(*cap));
2837 strcpy(cap->name,btv->video_dev->name);
2838 if (V4L2_BUF_TYPE_VBI_CAPTURE == fh->type) {
2839 /* vbi */
2840 cap->type = VID_TYPE_TUNER|VID_TYPE_TELETEXT;
2841 } else {
2842 /* others */
2843 cap->type = VID_TYPE_CAPTURE|
2844 VID_TYPE_TUNER|
2845 VID_TYPE_CLIPPING|
2846 VID_TYPE_SCALES;
2847 if (no_overlay <= 0)
2848 cap->type |= VID_TYPE_OVERLAY;
2849
2850 cap->maxwidth = bttv_tvnorms[btv->tvnorm].swidth;
2851 cap->maxheight = bttv_tvnorms[btv->tvnorm].sheight;
2852 cap->minwidth = 48;
2853 cap->minheight = 32;
2854 }
2855 cap->channels = bttv_tvcards[btv->c.type].video_inputs;
2856 cap->audios = bttv_tvcards[btv->c.type].audio_inputs;
2857 return 0;
2858 }
2859
2860 case VIDIOCGPICT:
2861 {
2862 struct video_picture *pic = arg;
2863
2864 memset(pic,0,sizeof(*pic));
2865 pic->brightness = btv->bright;
2866 pic->contrast = btv->contrast;
2867 pic->hue = btv->hue;
2868 pic->colour = btv->saturation;
2869 if (fh->fmt) {
2870 pic->depth = fh->fmt->depth;
2871 pic->palette = fh->fmt->palette;
2872 }
2873 return 0;
2874 }
2875 case VIDIOCSPICT:
2876 {
2877 struct video_picture *pic = arg;
2878 const struct bttv_format *fmt;
2879
2880 fmt = format_by_palette(pic->palette);
2881 if (NULL == fmt)
2882 return -EINVAL;
2883 mutex_lock(&fh->cap.lock);
2884 if (fmt->flags & FORMAT_FLAGS_RAW) {
2885 /* VIDIOCMCAPTURE uses gbufsize, not RAW_BPL *
2886 RAW_LINES * 2. F1 is stored at offset 0, F2
2887 at buffer size / 2. */
2888 fh->width = RAW_BPL;
2889 fh->height = gbufsize / RAW_BPL;
2890 btv->init.width = RAW_BPL;
2891 btv->init.height = gbufsize / RAW_BPL;
2892 }
2893 fh->ovfmt = fmt;
2894 fh->fmt = fmt;
2895 btv->init.ovfmt = fmt;
2896 btv->init.fmt = fmt;
2897 if (bigendian) {
2898 /* dirty hack time: swap bytes for overlay if the
2899 display adaptor is big endian (insmod option) */
2900 if (fmt->palette == VIDEO_PALETTE_RGB555 ||
2901 fmt->palette == VIDEO_PALETTE_RGB565 ||
2902 fmt->palette == VIDEO_PALETTE_RGB32) {
2903 fh->ovfmt = fmt+1;
2904 }
2905 }
2906 bt848_bright(btv,pic->brightness);
2907 bt848_contrast(btv,pic->contrast);
2908 bt848_hue(btv,pic->hue);
2909 bt848_sat(btv,pic->colour);
2910 mutex_unlock(&fh->cap.lock);
2911 return 0;
2912 }
2913
2914 case VIDIOCGWIN:
2915 {
2916 struct video_window *win = arg;
2917
2918 memset(win,0,sizeof(*win));
2919 win->x = fh->ov.w.left;
2920 win->y = fh->ov.w.top;
2921 win->width = fh->ov.w.width;
2922 win->height = fh->ov.w.height;
2923 return 0;
2924 }
2925 case VIDIOCSWIN:
2926 {
2927 struct video_window *win = arg;
2928 struct v4l2_window w2;
2929
2930 if (no_overlay > 0) {
2931 printk ("VIDIOCSWIN: no_overlay\n");
2932 return -EINVAL;
2933 }
2934
2935 w2.field = V4L2_FIELD_ANY;
2936 w2.w.left = win->x;
2937 w2.w.top = win->y;
2938 w2.w.width = win->width;
2939 w2.w.height = win->height;
2940 w2.clipcount = win->clipcount;
2941 w2.clips = (struct v4l2_clip __user *)win->clips;
2942 retval = setup_window(fh, btv, &w2, 0);
2943 if (0 == retval) {
2944 /* on v4l1 this ioctl affects the read() size too */
2945 fh->width = fh->ov.w.width;
2946 fh->height = fh->ov.w.height;
2947 btv->init.width = fh->ov.w.width;
2948 btv->init.height = fh->ov.w.height;
2949 }
2950 return retval;
2951 }
2952
2953 case VIDIOCGFBUF:
2954 {
2955 struct video_buffer *fbuf = arg;
2956
2957 fbuf->base = btv->fbuf.base;
2958 fbuf->width = btv->fbuf.fmt.width;
2959 fbuf->height = btv->fbuf.fmt.height;
2960 fbuf->bytesperline = btv->fbuf.fmt.bytesperline;
2961 if (fh->ovfmt)
2962 fbuf->depth = fh->ovfmt->depth;
2963 else {
2964 if (fbuf->width)
2965 fbuf->depth = ((fbuf->bytesperline<<3)
2966 + (fbuf->width-1) )
2967 /fbuf->width;
2968 else
2969 fbuf->depth = 0;
2970 }
2971 return 0;
2972 }
2973 case VIDIOCSFBUF:
2974 {
2975 struct video_buffer *fbuf = arg;
2976 const struct bttv_format *fmt;
2977 unsigned long end;
2978
2979 if(!capable(CAP_SYS_ADMIN) &&
2980 !capable(CAP_SYS_RAWIO))
2981 return -EPERM;
2982 end = (unsigned long)fbuf->base +
2983 fbuf->height * fbuf->bytesperline;
2984 mutex_lock(&fh->cap.lock);
2985 retval = -EINVAL;
2986
2987 switch (fbuf->depth) {
2988 case 8:
2989 fmt = format_by_palette(VIDEO_PALETTE_HI240);
2990 break;
2991 case 16:
2992 fmt = format_by_palette(VIDEO_PALETTE_RGB565);
2993 break;
2994 case 24:
2995 fmt = format_by_palette(VIDEO_PALETTE_RGB24);
2996 break;
2997 case 32:
2998 fmt = format_by_palette(VIDEO_PALETTE_RGB32);
2999 break;
3000 case 15:
3001 fbuf->depth = 16;
3002 fmt = format_by_palette(VIDEO_PALETTE_RGB555);
3003 break;
3004 default:
3005 fmt = NULL;
3006 break;
3007 }
3008 if (NULL == fmt)
3009 goto fh_unlock_and_return;
3010
3011 fh->ovfmt = fmt;
3012 fh->fmt = fmt;
3013 btv->init.ovfmt = fmt;
3014 btv->init.fmt = fmt;
3015 btv->fbuf.base = fbuf->base;
3016 btv->fbuf.fmt.width = fbuf->width;
3017 btv->fbuf.fmt.height = fbuf->height;
3018 if (fbuf->bytesperline)
3019 btv->fbuf.fmt.bytesperline = fbuf->bytesperline;
3020 else
3021 btv->fbuf.fmt.bytesperline = btv->fbuf.fmt.width*fbuf->depth/8;
3022 mutex_unlock(&fh->cap.lock);
3023 return 0;
3024 }
3025
3026 case VIDIOCCAPTURE:
3027 case VIDIOC_OVERLAY:
3028 {
3029 struct bttv_buffer *new;
3030 int *on = arg;
3031
3032 if (*on) {
3033 /* verify args */
3034 if (NULL == btv->fbuf.base)
3035 return -EINVAL;
3036 if (!fh->ov.setup_ok) {
3037 dprintk("bttv%d: overlay: !setup_ok\n",btv->c.nr);
3038 return -EINVAL;
3039 }
3040 }
3041
3042 if (!check_alloc_btres(btv,fh,RESOURCE_OVERLAY))
3043 return -EBUSY;
3044
3045 mutex_lock(&fh->cap.lock);
3046 if (*on) {
3047 fh->ov.tvnorm = btv->tvnorm;
3048 new = videobuf_pci_alloc(sizeof(*new));
3049 new->crop = btv->crop[!!fh->do_crop].rect;
3050 bttv_overlay_risc(btv, &fh->ov, fh->ovfmt, new);
3051 } else {
3052 new = NULL;
3053 }
3054
3055 /* switch over */
3056 retval = bttv_switch_overlay(btv,fh,new);
3057 mutex_unlock(&fh->cap.lock);
3058 return retval;
3059 }
3060
3061 case VIDIOCGMBUF:
3062 {
3063 struct video_mbuf *mbuf = arg;
3064 unsigned int i;
3065
3066 mutex_lock(&fh->cap.lock);
3067 retval = videobuf_mmap_setup(&fh->cap,gbuffers,gbufsize,
3068 V4L2_MEMORY_MMAP);
3069 if (retval < 0)
3070 goto fh_unlock_and_return;
3071
3072 gbuffers = retval;
3073 memset(mbuf,0,sizeof(*mbuf));
3074 mbuf->frames = gbuffers;
3075 mbuf->size = gbuffers * gbufsize;
3076 for (i = 0; i < gbuffers; i++)
3077 mbuf->offsets[i] = i * gbufsize;
3078 mutex_unlock(&fh->cap.lock);
3079 return 0;
3080 }
3081 case VIDIOCMCAPTURE:
3082 {
3083 struct video_mmap *vm = arg;
3084 struct bttv_buffer *buf;
3085 enum v4l2_field field;
3086 __s32 height2;
3087 int res;
3088
3089 if (vm->frame >= VIDEO_MAX_FRAME)
3090 return -EINVAL;
3091
3092 res = bttv_resource(fh);
3093 if (!check_alloc_btres(btv, fh, res))
3094 return -EBUSY;
3095
3096 mutex_lock(&fh->cap.lock);
3097 retval = -EINVAL;
3098 buf = (struct bttv_buffer *)fh->cap.bufs[vm->frame];
3099 if (NULL == buf)
3100 goto fh_unlock_and_return;
3101 if (0 == buf->vb.baddr)
3102 goto fh_unlock_and_return;
3103 if (buf->vb.state == STATE_QUEUED ||
3104 buf->vb.state == STATE_ACTIVE)
3105 goto fh_unlock_and_return;
3106
3107 height2 = btv->crop[!!fh->do_crop].rect.height >> 1;
3108 field = (vm->height > height2)
3109 ? V4L2_FIELD_INTERLACED
3110 : V4L2_FIELD_BOTTOM;
3111 retval = bttv_prepare_buffer(&fh->cap,btv,buf,
3112 format_by_palette(vm->format),
3113 vm->width,vm->height,field);
3114 if (0 != retval)
3115 goto fh_unlock_and_return;
3116 btv->init.width = vm->width;
3117 btv->init.height = vm->height;
3118 spin_lock_irqsave(&btv->s_lock,flags);
3119 buffer_queue(&fh->cap,&buf->vb);
3120 spin_unlock_irqrestore(&btv->s_lock,flags);
3121 mutex_unlock(&fh->cap.lock);
3122 return 0;
3123 }
3124 case VIDIOCSYNC:
3125 {
3126 int *frame = arg;
3127 struct bttv_buffer *buf;
3128
3129 if (*frame >= VIDEO_MAX_FRAME)
3130 return -EINVAL;
3131
3132 mutex_lock(&fh->cap.lock);
3133 retval = -EINVAL;
3134 buf = (struct bttv_buffer *)fh->cap.bufs[*frame];
3135 if (NULL == buf)
3136 goto fh_unlock_and_return;
3137 retval = videobuf_waiton(&buf->vb,0,1);
3138 if (0 != retval)
3139 goto fh_unlock_and_return;
3140 switch (buf->vb.state) {
3141 case STATE_ERROR:
3142 retval = -EIO;
3143 /* fall through */
3144 case STATE_DONE:
3145 {
3146 struct videobuf_dmabuf *dma=videobuf_to_dma(&buf->vb);
3147 videobuf_dma_sync(&fh->cap,dma);
3148 bttv_dma_free(&fh->cap,btv,buf);
3149 break;
3150 }
3151 default:
3152 retval = -EINVAL;
3153 break;
3154 }
3155 mutex_unlock(&fh->cap.lock);
3156 return retval;
3157 }
3158
3159 case VIDIOCGVBIFMT:
3160 if (fh->type != V4L2_BUF_TYPE_VBI_CAPTURE) {
3161 retval = bttv_switch_type(fh,V4L2_BUF_TYPE_VBI_CAPTURE);
3162 if (0 != retval)
3163 return retval;
3164 }
3165
3166 /* fall through */
3167
3168 case VIDIOCSVBIFMT:
3169 return v4l_compat_translate_ioctl(inode, file, cmd,
3170 arg, bttv_do_ioctl);
3171
3172 case BTTV_VERSION:
3173 case VIDIOCGFREQ:
3174 case VIDIOCSFREQ:
3175 case VIDIOCGTUNER:
3176 case VIDIOCSTUNER:
3177 case VIDIOCGCHAN:
3178 case VIDIOCSCHAN:
3179 case VIDIOCGAUDIO:
3180 case VIDIOCSAUDIO:
3181 return bttv_common_ioctls(btv,cmd,arg);
3182
3183 /* *** v4l2 *** ************************************************ */
3184 case VIDIOC_QUERYCAP:
3185 {
3186 struct v4l2_capability *cap = arg;
3187
3188 if (0 == v4l2)
3189 return -EINVAL;
3190 memset(cap, 0, sizeof (*cap));
3191 strlcpy(cap->driver, "bttv", sizeof (cap->driver));
3192 strlcpy(cap->card, btv->video_dev->name, sizeof (cap->card));
3193 snprintf(cap->bus_info, sizeof (cap->bus_info),
3194 "PCI:%s", pci_name(btv->c.pci));
3195 cap->version = BTTV_VERSION_CODE;
3196 cap->capabilities =
3197 V4L2_CAP_VIDEO_CAPTURE |
3198 V4L2_CAP_VBI_CAPTURE |
3199 V4L2_CAP_READWRITE |
3200 V4L2_CAP_STREAMING;
3201 if (no_overlay <= 0)
3202 cap->capabilities |= V4L2_CAP_VIDEO_OVERLAY;
3203
3204 if (bttv_tvcards[btv->c.type].tuner != UNSET &&
3205 bttv_tvcards[btv->c.type].tuner != TUNER_ABSENT)
3206 cap->capabilities |= V4L2_CAP_TUNER;
3207 return 0;
3208 }
3209
3210 case VIDIOC_ENUM_FMT:
3211 {
3212 struct v4l2_fmtdesc *f = arg;
3213 enum v4l2_buf_type type;
3214 unsigned int i;
3215 int index;
3216
3217 type = f->type;
3218 if (V4L2_BUF_TYPE_VBI_CAPTURE == type) {
3219 /* vbi */
3220 index = f->index;
3221 if (0 != index)
3222 return -EINVAL;
3223 memset(f,0,sizeof(*f));
3224 f->index = index;
3225 f->type = type;
3226 f->pixelformat = V4L2_PIX_FMT_GREY;
3227 strcpy(f->description,"vbi data");
3228 return 0;
3229 }
3230
3231 /* video capture + overlay */
3232 index = -1;
3233 for (i = 0; i < BTTV_FORMATS; i++) {
3234 if (bttv_formats[i].fourcc != -1)
3235 index++;
3236 if ((unsigned int)index == f->index)
3237 break;
3238 }
3239 if (BTTV_FORMATS == i)
3240 return -EINVAL;
3241
3242 switch (f->type) {
3243 case V4L2_BUF_TYPE_VIDEO_CAPTURE:
3244 break;
3245 case V4L2_BUF_TYPE_VIDEO_OVERLAY:
3246 if (!(bttv_formats[i].flags & FORMAT_FLAGS_PACKED))
3247 return -EINVAL;
3248 break;
3249 default:
3250 return -EINVAL;
3251 }
3252 memset(f,0,sizeof(*f));
3253 f->index = index;
3254 f->type = type;
3255 f->pixelformat = bttv_formats[i].fourcc;
3256 strlcpy(f->description,bttv_formats[i].name,sizeof(f->description));
3257 return 0;
3258 }
3259
3260 case VIDIOC_TRY_FMT:
3261 {
3262 struct v4l2_format *f = arg;
3263 return bttv_try_fmt(fh,btv,f, /* adjust_crop */ 0);
3264 }
3265 case VIDIOC_G_FMT:
3266 {
3267 struct v4l2_format *f = arg;
3268 return bttv_g_fmt(fh,f);
3269 }
3270 case VIDIOC_S_FMT:
3271 {
3272 struct v4l2_format *f = arg;
3273 return bttv_s_fmt(fh,btv,f);
3274 }
3275
3276 case VIDIOC_G_FBUF:
3277 {
3278 struct v4l2_framebuffer *fb = arg;
3279
3280 *fb = btv->fbuf;
3281 fb->capability = V4L2_FBUF_CAP_LIST_CLIPPING;
3282 if (fh->ovfmt)
3283 fb->fmt.pixelformat = fh->ovfmt->fourcc;
3284 return 0;
3285 }
3286 case VIDIOC_S_FBUF:
3287 {
3288 struct v4l2_framebuffer *fb = arg;
3289 const struct bttv_format *fmt;
3290
3291 if(!capable(CAP_SYS_ADMIN) &&
3292 !capable(CAP_SYS_RAWIO))
3293 return -EPERM;
3294
3295 /* check args */
3296 fmt = format_by_fourcc(fb->fmt.pixelformat);
3297 if (NULL == fmt)
3298 return -EINVAL;
3299 if (0 == (fmt->flags & FORMAT_FLAGS_PACKED))
3300 return -EINVAL;
3301
3302 retval = -EINVAL;
3303 if (fb->flags & V4L2_FBUF_FLAG_OVERLAY) {
3304 __s32 width = fb->fmt.width;
3305 __s32 height = fb->fmt.height;
3306
3307 retval = limit_scaled_size(fh, &width, &height,
3308 V4L2_FIELD_INTERLACED,
3309 /* width_mask */ ~3,
3310 /* width_bias */ 2,
3311 /* adjust_size */ 0,
3312 /* adjust_crop */ 0);
3313 if (0 != retval)
3314 return retval;
3315 }
3316
3317 /* ok, accept it */
3318 mutex_lock(&fh->cap.lock);
3319 btv->fbuf.base = fb->base;
3320 btv->fbuf.fmt.width = fb->fmt.width;
3321 btv->fbuf.fmt.height = fb->fmt.height;
3322 if (0 != fb->fmt.bytesperline)
3323 btv->fbuf.fmt.bytesperline = fb->fmt.bytesperline;
3324 else
3325 btv->fbuf.fmt.bytesperline = btv->fbuf.fmt.width*fmt->depth/8;
3326
3327 retval = 0;
3328 fh->ovfmt = fmt;
3329 btv->init.ovfmt = fmt;
3330 if (fb->flags & V4L2_FBUF_FLAG_OVERLAY) {
3331 fh->ov.w.left = 0;
3332 fh->ov.w.top = 0;
3333 fh->ov.w.width = fb->fmt.width;
3334 fh->ov.w.height = fb->fmt.height;
3335 btv->init.ov.w.width = fb->fmt.width;
3336 btv->init.ov.w.height = fb->fmt.height;
3337 kfree(fh->ov.clips);
3338 fh->ov.clips = NULL;
3339 fh->ov.nclips = 0;
3340
3341 if (check_btres(fh, RESOURCE_OVERLAY)) {
3342 struct bttv_buffer *new;
3343
3344 new = videobuf_pci_alloc(sizeof(*new));
3345 new->crop = btv->crop[!!fh->do_crop].rect;
3346 bttv_overlay_risc(btv,&fh->ov,fh->ovfmt,new);
3347 retval = bttv_switch_overlay(btv,fh,new);
3348 }
3349 }
3350 mutex_unlock(&fh->cap.lock);
3351 return retval;
3352 }
3353
3354 case VIDIOC_REQBUFS:
3355 return videobuf_reqbufs(bttv_queue(fh),arg);
3356
3357 case VIDIOC_QUERYBUF:
3358 return videobuf_querybuf(bttv_queue(fh),arg);
3359
3360 case VIDIOC_QBUF:
3361 {
3362 int res = bttv_resource(fh);
3363
3364 if (!check_alloc_btres(btv, fh, res))
3365 return -EBUSY;
3366 return videobuf_qbuf(bttv_queue(fh),arg);
3367 }
3368
3369 case VIDIOC_DQBUF:
3370 return videobuf_dqbuf(bttv_queue(fh),arg,
3371 file->f_flags & O_NONBLOCK);
3372
3373 case VIDIOC_STREAMON:
3374 {
3375 int res = bttv_resource(fh);
3376
3377 if (!check_alloc_btres(btv,fh,res))
3378 return -EBUSY;
3379 return videobuf_streamon(bttv_queue(fh));
3380 }
3381 case VIDIOC_STREAMOFF:
3382 {
3383 int res = bttv_resource(fh);
3384
3385 retval = videobuf_streamoff(bttv_queue(fh));
3386 if (retval < 0)
3387 return retval;
3388 free_btres(btv,fh,res);
3389 return 0;
3390 }
3391
3392 case VIDIOC_QUERYCTRL:
3393 {
3394 struct v4l2_queryctrl *c = arg;
3395 int i;
3396
3397 if ((c->id < V4L2_CID_BASE ||
3398 c->id >= V4L2_CID_LASTP1) &&
3399 (c->id < V4L2_CID_PRIVATE_BASE ||
3400 c->id >= V4L2_CID_PRIVATE_LASTP1))
3401 return -EINVAL;
3402 for (i = 0; i < BTTV_CTLS; i++)
3403 if (bttv_ctls[i].id == c->id)
3404 break;
3405 if (i == BTTV_CTLS) {
3406 *c = no_ctl;
3407 return 0;
3408 }
3409 *c = bttv_ctls[i];
3410 if (btv->audio_hook && i >= 4 && i <= 8) {
3411 struct video_audio va;
3412 memset(&va,0,sizeof(va));
3413 btv->audio_hook(btv,&va,0);
3414 switch (bttv_ctls[i].id) {
3415 case V4L2_CID_AUDIO_VOLUME:
3416 if (!(va.flags & VIDEO_AUDIO_VOLUME))
3417 *c = no_ctl;
3418 break;
3419 case V4L2_CID_AUDIO_BALANCE:
3420 if (!(va.flags & VIDEO_AUDIO_BALANCE))
3421 *c = no_ctl;
3422 break;
3423 case V4L2_CID_AUDIO_BASS:
3424 if (!(va.flags & VIDEO_AUDIO_BASS))
3425 *c = no_ctl;
3426 break;
3427 case V4L2_CID_AUDIO_TREBLE:
3428 if (!(va.flags & VIDEO_AUDIO_TREBLE))
3429 *c = no_ctl;
3430 break;
3431 }
3432 }
3433 return 0;
3434 }
3435 case VIDIOC_G_CTRL:
3436 return get_control(btv,arg);
3437 case VIDIOC_S_CTRL:
3438 return set_control(btv,arg);
3439 case VIDIOC_G_PARM:
3440 {
3441 struct v4l2_streamparm *parm = arg;
3442 struct v4l2_standard s;
3443 if (parm->type != V4L2_BUF_TYPE_VIDEO_CAPTURE)
3444 return -EINVAL;
3445 memset(parm,0,sizeof(*parm));
3446 v4l2_video_std_construct(&s, bttv_tvnorms[btv->tvnorm].v4l2_id,
3447 bttv_tvnorms[btv->tvnorm].name);
3448 parm->parm.capture.timeperframe = s.frameperiod;
3449 return 0;
3450 }
3451
3452 case VIDIOC_G_PRIORITY:
3453 {
3454 enum v4l2_priority *p = arg;
3455
3456 *p = v4l2_prio_max(&btv->prio);
3457 return 0;
3458 }
3459 case VIDIOC_S_PRIORITY:
3460 {
3461 enum v4l2_priority *prio = arg;
3462
3463 return v4l2_prio_change(&btv->prio, &fh->prio, *prio);
3464 }
3465
3466 case VIDIOC_CROPCAP:
3467 {
3468 struct v4l2_cropcap *cap = arg;
3469 enum v4l2_buf_type type;
3470
3471 type = cap->type;
3472
3473 if (type != V4L2_BUF_TYPE_VIDEO_CAPTURE &&
3474 type != V4L2_BUF_TYPE_VIDEO_OVERLAY)
3475 return -EINVAL;
3476
3477 *cap = bttv_tvnorms[btv->tvnorm].cropcap;
3478 cap->type = type;
3479
3480 return 0;
3481 }
3482 case VIDIOC_G_CROP:
3483 {
3484 struct v4l2_crop * crop = arg;
3485
3486 if (crop->type != V4L2_BUF_TYPE_VIDEO_CAPTURE &&
3487 crop->type != V4L2_BUF_TYPE_VIDEO_OVERLAY)
3488 return -EINVAL;
3489
3490 /* No fh->do_crop = 1; because btv->crop[1] may be
3491 inconsistent with fh->width or fh->height and apps
3492 do not expect a change here. */
3493
3494 crop->c = btv->crop[!!fh->do_crop].rect;
3495
3496 return 0;
3497 }
3498 case VIDIOC_S_CROP:
3499 {
3500 struct v4l2_crop *crop = arg;
3501 const struct v4l2_rect *b;
3502 struct bttv_crop c;
3503 __s32 b_left;
3504 __s32 b_top;
3505 __s32 b_right;
3506 __s32 b_bottom;
3507
3508 if (crop->type != V4L2_BUF_TYPE_VIDEO_CAPTURE &&
3509 crop->type != V4L2_BUF_TYPE_VIDEO_OVERLAY)
3510 return -EINVAL;
3511
3512 retval = v4l2_prio_check(&btv->prio,&fh->prio);
3513 if (0 != retval)
3514 return retval;
3515
3516 /* Make sure tvnorm, vbi_end and the current cropping
3517 parameters remain consistent until we're done. Note
3518 read() may change vbi_end in check_alloc_btres(). */
3519 mutex_lock(&btv->lock);
3520
3521 retval = -EBUSY;
3522
3523 if (locked_btres(fh->btv, VIDEO_RESOURCES))
3524 goto btv_unlock_and_return;
3525
3526 b = &bttv_tvnorms[btv->tvnorm].cropcap.bounds;
3527
3528 b_left = b->left;
3529 b_right = b_left + b->width;
3530 b_bottom = b->top + b->height;
3531
3532 b_top = max(b->top, btv->vbi_end);
3533 if (b_top + 32 >= b_bottom)
3534 goto btv_unlock_and_return;
3535
3536 /* Min. scaled size 48 x 32. */
3537 c.rect.left = clamp(crop->c.left, b_left, b_right - 48);
3538 c.rect.left = min(c.rect.left, (__s32) MAX_HDELAY);
3539
3540 c.rect.width = clamp(crop->c.width,
3541 48, b_right - c.rect.left);
3542
3543 c.rect.top = clamp(crop->c.top, b_top, b_bottom - 32);
3544 /* Top and height must be a multiple of two. */
3545 c.rect.top = (c.rect.top + 1) & ~1;
3546
3547 c.rect.height = clamp(crop->c.height,
3548 32, b_bottom - c.rect.top);
3549 c.rect.height = (c.rect.height + 1) & ~1;
3550
3551 bttv_crop_calc_limits(&c);
3552
3553 btv->crop[1] = c;
3554
3555 mutex_unlock(&btv->lock);
3556
3557 fh->do_crop = 1;
3558
3559 mutex_lock(&fh->cap.lock);
3560
3561 if (fh->width < c.min_scaled_width) {
3562 fh->width = c.min_scaled_width;
3563 btv->init.width = c.min_scaled_width;
3564 } else if (fh->width > c.max_scaled_width) {
3565 fh->width = c.max_scaled_width;
3566 btv->init.width = c.max_scaled_width;
3567 }
3568
3569 if (fh->height < c.min_scaled_height) {
3570 fh->height = c.min_scaled_height;
3571 btv->init.height = c.min_scaled_height;
3572 } else if (fh->height > c.max_scaled_height) {
3573 fh->height = c.max_scaled_height;
3574 btv->init.height = c.max_scaled_height;
3575 }
3576
3577 mutex_unlock(&fh->cap.lock);
3578
3579 return 0;
3580 }
3581
3582 case VIDIOC_ENUMSTD:
3583 case VIDIOC_G_STD:
3584 case VIDIOC_S_STD:
3585 case VIDIOC_ENUMINPUT:
3586 case VIDIOC_G_INPUT:
3587 case VIDIOC_S_INPUT:
3588 case VIDIOC_G_TUNER:
3589 case VIDIOC_S_TUNER:
3590 case VIDIOC_G_FREQUENCY:
3591 case VIDIOC_S_FREQUENCY:
3592 case VIDIOC_LOG_STATUS:
3593 case VIDIOC_DBG_G_REGISTER:
3594 case VIDIOC_DBG_S_REGISTER:
3595 return bttv_common_ioctls(btv,cmd,arg);
3596
3597 default:
3598 return -ENOIOCTLCMD;
3599 }
3600 return 0;
3601
3602 fh_unlock_and_return:
3603 mutex_unlock(&fh->cap.lock);
3604 return retval;
3605
3606 btv_unlock_and_return:
3607 mutex_unlock(&btv->lock);
3608 return retval;
3609 }
3610
3611 static int bttv_ioctl(struct inode *inode, struct file *file,
3612 unsigned int cmd, unsigned long arg)
3613 {
3614 struct bttv_fh *fh = file->private_data;
3615
3616 switch (cmd) {
3617 case BTTV_VBISIZE:
3618 {
3619 const struct bttv_tvnorm *tvnorm;
3620
3621 tvnorm = fh->vbi_fmt.tvnorm;
3622
3623 if (fh->vbi_fmt.fmt.start[0] != tvnorm->vbistart[0] ||
3624 fh->vbi_fmt.fmt.start[1] != tvnorm->vbistart[1] ||
3625 fh->vbi_fmt.fmt.count[0] != fh->vbi_fmt.fmt.count[1]) {
3626 /* BTTV_VBISIZE cannot express these parameters,
3627 however open() resets the paramters to defaults
3628 and apps shouldn't call BTTV_VBISIZE after
3629 VIDIOC_S_FMT. */
3630 return -EINVAL;
3631 }
3632
3633 bttv_switch_type(fh,V4L2_BUF_TYPE_VBI_CAPTURE);
3634 return (fh->vbi_fmt.fmt.count[0] * 2
3635 * fh->vbi_fmt.fmt.samples_per_line);
3636 }
3637
3638 default:
3639 return video_usercopy(inode, file, cmd, arg, bttv_do_ioctl);
3640 }
3641 }
3642
3643 static ssize_t bttv_read(struct file *file, char __user *data,
3644 size_t count, loff_t *ppos)
3645 {
3646 struct bttv_fh *fh = file->private_data;
3647 int retval = 0;
3648
3649 if (fh->btv->errors)
3650 bttv_reinit_bt848(fh->btv);
3651 dprintk("bttv%d: read count=%d type=%s\n",
3652 fh->btv->c.nr,(int)count,v4l2_type_names[fh->type]);
3653
3654 switch (fh->type) {
3655 case V4L2_BUF_TYPE_VIDEO_CAPTURE:
3656 if (!check_alloc_btres(fh->btv, fh, RESOURCE_VIDEO_READ)) {
3657 /* VIDEO_READ in use by another fh,
3658 or VIDEO_STREAM by any fh. */
3659 return -EBUSY;
3660 }
3661 retval = videobuf_read_one(&fh->cap, data, count, ppos,
3662 file->f_flags & O_NONBLOCK);
3663 free_btres(fh->btv, fh, RESOURCE_VIDEO_READ);
3664 break;
3665 case V4L2_BUF_TYPE_VBI_CAPTURE:
3666 if (!check_alloc_btres(fh->btv,fh,RESOURCE_VBI))
3667 return -EBUSY;
3668 retval = videobuf_read_stream(&fh->vbi, data, count, ppos, 1,
3669 file->f_flags & O_NONBLOCK);
3670 break;
3671 default:
3672 BUG();
3673 }
3674 return retval;
3675 }
3676
3677 static unsigned int bttv_poll(struct file *file, poll_table *wait)
3678 {
3679 struct bttv_fh *fh = file->private_data;
3680 struct bttv_buffer *buf;
3681 enum v4l2_field field;
3682
3683 if (V4L2_BUF_TYPE_VBI_CAPTURE == fh->type) {
3684 if (!check_alloc_btres(fh->btv,fh,RESOURCE_VBI))
3685 return POLLERR;
3686 return videobuf_poll_stream(file, &fh->vbi, wait);
3687 }
3688
3689 if (check_btres(fh,RESOURCE_VIDEO_STREAM)) {
3690 /* streaming capture */
3691 if (list_empty(&fh->cap.stream))
3692 return POLLERR;
3693 buf = list_entry(fh->cap.stream.next,struct bttv_buffer,vb.stream);
3694 } else {
3695 /* read() capture */
3696 mutex_lock(&fh->cap.lock);
3697 if (NULL == fh->cap.read_buf) {
3698 /* need to capture a new frame */
3699 if (locked_btres(fh->btv,RESOURCE_VIDEO_STREAM)) {
3700 mutex_unlock(&fh->cap.lock);
3701 return POLLERR;
3702 }
3703 fh->cap.read_buf = videobuf_pci_alloc(fh->cap.msize);
3704 if (NULL == fh->cap.read_buf) {
3705 mutex_unlock(&fh->cap.lock);
3706 return POLLERR;
3707 }
3708 fh->cap.read_buf->memory = V4L2_MEMORY_USERPTR;
3709 field = videobuf_next_field(&fh->cap);
3710 if (0 != fh->cap.ops->buf_prepare(&fh->cap,fh->cap.read_buf,field)) {
3711 kfree (fh->cap.read_buf);
3712 fh->cap.read_buf = NULL;
3713 mutex_unlock(&fh->cap.lock);
3714 return POLLERR;
3715 }
3716 fh->cap.ops->buf_queue(&fh->cap,fh->cap.read_buf);
3717 fh->cap.read_off = 0;
3718 }
3719 mutex_unlock(&fh->cap.lock);
3720 buf = (struct bttv_buffer*)fh->cap.read_buf;
3721 }
3722
3723 poll_wait(file, &buf->vb.done, wait);
3724 if (buf->vb.state == STATE_DONE ||
3725 buf->vb.state == STATE_ERROR)
3726 return POLLIN|POLLRDNORM;
3727 return 0;
3728 }
3729
3730 static int bttv_open(struct inode *inode, struct file *file)
3731 {
3732 int minor = iminor(inode);
3733 struct bttv *btv = NULL;
3734 struct bttv_fh *fh;
3735 enum v4l2_buf_type type = 0;
3736 unsigned int i;
3737
3738 dprintk(KERN_DEBUG "bttv: open minor=%d\n",minor);
3739
3740 for (i = 0; i < bttv_num; i++) {
3741 if (bttvs[i].video_dev &&
3742 bttvs[i].video_dev->minor == minor) {
3743 btv = &bttvs[i];
3744 type = V4L2_BUF_TYPE_VIDEO_CAPTURE;
3745 break;
3746 }
3747 if (bttvs[i].vbi_dev &&
3748 bttvs[i].vbi_dev->minor == minor) {
3749 btv = &bttvs[i];
3750 type = V4L2_BUF_TYPE_VBI_CAPTURE;
3751 break;
3752 }
3753 }
3754 if (NULL == btv)
3755 return -ENODEV;
3756
3757 dprintk(KERN_DEBUG "bttv%d: open called (type=%s)\n",
3758 btv->c.nr,v4l2_type_names[type]);
3759
3760 /* allocate per filehandle data */
3761 fh = kmalloc(sizeof(*fh),GFP_KERNEL);
3762 if (NULL == fh)
3763 return -ENOMEM;
3764 file->private_data = fh;
3765 *fh = btv->init;
3766 fh->type = type;
3767 fh->ov.setup_ok = 0;
3768 v4l2_prio_open(&btv->prio,&fh->prio);
3769
3770 videobuf_queue_pci_init(&fh->cap, &bttv_video_qops,
3771 btv->c.pci, &btv->s_lock,
3772 V4L2_BUF_TYPE_VIDEO_CAPTURE,
3773 V4L2_FIELD_INTERLACED,
3774 sizeof(struct bttv_buffer),
3775 fh);
3776 videobuf_queue_pci_init(&fh->vbi, &bttv_vbi_qops,
3777 btv->c.pci, &btv->s_lock,
3778 V4L2_BUF_TYPE_VBI_CAPTURE,
3779 V4L2_FIELD_SEQ_TB,
3780 sizeof(struct bttv_buffer),
3781 fh);
3782 i2c_vidiocschan(btv);
3783
3784 btv->users++;
3785
3786 /* The V4L2 spec requires one global set of cropping parameters
3787 which only change on request. These are stored in btv->crop[1].
3788 However for compatibility with V4L apps and cropping unaware
3789 V4L2 apps we now reset the cropping parameters as seen through
3790 this fh, which is to say VIDIOC_G_CROP and scaling limit checks
3791 will use btv->crop[0], the default cropping parameters for the
3792 current video standard, and VIDIOC_S_FMT will not implicitely
3793 change the cropping parameters until VIDIOC_S_CROP has been
3794 called. */
3795 fh->do_crop = !reset_crop; /* module parameter */
3796
3797 /* Likewise there should be one global set of VBI capture
3798 parameters, but for compatibility with V4L apps and earlier
3799 driver versions each fh has its own parameters. */
3800 bttv_vbi_fmt_reset(&fh->vbi_fmt, btv->tvnorm);
3801
3802 bttv_field_count(btv);
3803 return 0;
3804 }
3805
3806 static int bttv_release(struct inode *inode, struct file *file)
3807 {
3808 struct bttv_fh *fh = file->private_data;
3809 struct bttv *btv = fh->btv;
3810
3811 /* turn off overlay */
3812 if (check_btres(fh, RESOURCE_OVERLAY))
3813 bttv_switch_overlay(btv,fh,NULL);
3814
3815 /* stop video capture */
3816 if (check_btres(fh, RESOURCE_VIDEO_STREAM)) {
3817 videobuf_streamoff(&fh->cap);
3818 free_btres(btv,fh,RESOURCE_VIDEO_STREAM);
3819 }
3820 if (fh->cap.read_buf) {
3821 buffer_release(&fh->cap,fh->cap.read_buf);
3822 kfree(fh->cap.read_buf);
3823 }
3824 if (check_btres(fh, RESOURCE_VIDEO_READ)) {
3825 free_btres(btv, fh, RESOURCE_VIDEO_READ);
3826 }
3827
3828 /* stop vbi capture */
3829 if (check_btres(fh, RESOURCE_VBI)) {
3830 videobuf_stop(&fh->vbi);
3831 free_btres(btv,fh,RESOURCE_VBI);
3832 }
3833
3834 /* free stuff */
3835 videobuf_mmap_free(&fh->cap);
3836 videobuf_mmap_free(&fh->vbi);
3837 v4l2_prio_close(&btv->prio,&fh->prio);
3838 file->private_data = NULL;
3839 kfree(fh);
3840
3841 btv->users--;
3842 bttv_field_count(btv);
3843 return 0;
3844 }
3845
3846 static int
3847 bttv_mmap(struct file *file, struct vm_area_struct *vma)
3848 {
3849 struct bttv_fh *fh = file->private_data;
3850
3851 dprintk("bttv%d: mmap type=%s 0x%lx+%ld\n",
3852 fh->btv->c.nr, v4l2_type_names[fh->type],
3853 vma->vm_start, vma->vm_end - vma->vm_start);
3854 return videobuf_mmap_mapper(bttv_queue(fh),vma);
3855 }
3856
3857 static const struct file_operations bttv_fops =
3858 {
3859 .owner = THIS_MODULE,
3860 .open = bttv_open,
3861 .release = bttv_release,
3862 .ioctl = bttv_ioctl,
3863 .compat_ioctl = v4l_compat_ioctl32,
3864 .llseek = no_llseek,
3865 .read = bttv_read,
3866 .mmap = bttv_mmap,
3867 .poll = bttv_poll,
3868 };
3869
3870 static struct video_device bttv_video_template =
3871 {
3872 .name = "UNSET",
3873 .type = VID_TYPE_CAPTURE|VID_TYPE_TUNER|
3874 VID_TYPE_CLIPPING|VID_TYPE_SCALES,
3875 .fops = &bttv_fops,
3876 .minor = -1,
3877 };
3878
3879 static struct video_device bttv_vbi_template =
3880 {
3881 .name = "bt848/878 vbi",
3882 .type = VID_TYPE_TUNER|VID_TYPE_TELETEXT,
3883 .fops = &bttv_fops,
3884 .minor = -1,
3885 };
3886
3887 /* ----------------------------------------------------------------------- */
3888 /* radio interface */
3889
3890 static int radio_open(struct inode *inode, struct file *file)
3891 {
3892 int minor = iminor(inode);
3893 struct bttv *btv = NULL;
3894 unsigned int i;
3895
3896 dprintk("bttv: open minor=%d\n",minor);
3897
3898 for (i = 0; i < bttv_num; i++) {
3899 if (bttvs[i].radio_dev->minor == minor) {
3900 btv = &bttvs[i];
3901 break;
3902 }
3903 }
3904 if (NULL == btv)
3905 return -ENODEV;
3906
3907 dprintk("bttv%d: open called (radio)\n",btv->c.nr);
3908 mutex_lock(&btv->lock);
3909
3910 btv->radio_user++;
3911
3912 file->private_data = btv;
3913
3914 bttv_call_i2c_clients(btv,AUDC_SET_RADIO,NULL);
3915 audio_input(btv,TVAUDIO_INPUT_RADIO);
3916
3917 mutex_unlock(&btv->lock);
3918 return 0;
3919 }
3920
3921 static int radio_release(struct inode *inode, struct file *file)
3922 {
3923 struct bttv *btv = file->private_data;
3924 struct rds_command cmd;
3925
3926 btv->radio_user--;
3927
3928 bttv_call_i2c_clients(btv, RDS_CMD_CLOSE, &cmd);
3929
3930 return 0;
3931 }
3932
3933 static int radio_do_ioctl(struct inode *inode, struct file *file,
3934 unsigned int cmd, void *arg)
3935 {
3936 struct bttv *btv = file->private_data;
3937
3938 switch (cmd) {
3939 case VIDIOCGCAP:
3940 {
3941 struct video_capability *cap = arg;
3942
3943 memset(cap,0,sizeof(*cap));
3944 strcpy(cap->name,btv->radio_dev->name);
3945 cap->type = VID_TYPE_TUNER;
3946 cap->channels = 1;
3947 cap->audios = 1;
3948 return 0;
3949 }
3950
3951 case VIDIOCGTUNER:
3952 {
3953 struct video_tuner *v = arg;
3954
3955 if(v->tuner)
3956 return -EINVAL;
3957 memset(v,0,sizeof(*v));
3958 strcpy(v->name, "Radio");
3959 bttv_call_i2c_clients(btv,cmd,v);
3960 return 0;
3961 }
3962 case VIDIOCSTUNER:
3963 /* nothing to do */
3964 return 0;
3965
3966 case BTTV_VERSION:
3967 case VIDIOCGFREQ:
3968 case VIDIOCSFREQ:
3969 case VIDIOCGAUDIO:
3970 case VIDIOCSAUDIO:
3971 case VIDIOC_LOG_STATUS:
3972 case VIDIOC_DBG_G_REGISTER:
3973 case VIDIOC_DBG_S_REGISTER:
3974 return bttv_common_ioctls(btv,cmd,arg);
3975
3976 default:
3977 return -ENOIOCTLCMD;
3978 }
3979 return 0;
3980 }
3981
3982 static int radio_ioctl(struct inode *inode, struct file *file,
3983 unsigned int cmd, unsigned long arg)
3984 {
3985 return video_usercopy(inode, file, cmd, arg, radio_do_ioctl);
3986 }
3987
3988 static ssize_t radio_read(struct file *file, char __user *data,
3989 size_t count, loff_t *ppos)
3990 {
3991 struct bttv *btv = file->private_data;
3992 struct rds_command cmd;
3993 cmd.block_count = count/3;
3994 cmd.buffer = data;
3995 cmd.instance = file;
3996 cmd.result = -ENODEV;
3997
3998 bttv_call_i2c_clients(btv, RDS_CMD_READ, &cmd);
3999
4000 return cmd.result;
4001 }
4002
4003 static unsigned int radio_poll(struct file *file, poll_table *wait)
4004 {
4005 struct bttv *btv = file->private_data;
4006 struct rds_command cmd;
4007 cmd.instance = file;
4008 cmd.event_list = wait;
4009 cmd.result = -ENODEV;
4010 bttv_call_i2c_clients(btv, RDS_CMD_POLL, &cmd);
4011
4012 return cmd.result;
4013 }
4014
4015 static const struct file_operations radio_fops =
4016 {
4017 .owner = THIS_MODULE,
4018 .open = radio_open,
4019 .read = radio_read,
4020 .release = radio_release,
4021 .ioctl = radio_ioctl,
4022 .llseek = no_llseek,
4023 .poll = radio_poll,
4024 };
4025
4026 static struct video_device radio_template =
4027 {
4028 .name = "bt848/878 radio",
4029 .type = VID_TYPE_TUNER,
4030 .fops = &radio_fops,
4031 .minor = -1,
4032 };
4033
4034 /* ----------------------------------------------------------------------- */
4035 /* some debug code */
4036
4037 static int bttv_risc_decode(u32 risc)
4038 {
4039 static char *instr[16] = {
4040 [ BT848_RISC_WRITE >> 28 ] = "write",
4041 [ BT848_RISC_SKIP >> 28 ] = "skip",
4042 [ BT848_RISC_WRITEC >> 28 ] = "writec",
4043 [ BT848_RISC_JUMP >> 28 ] = "jump",
4044 [ BT848_RISC_SYNC >> 28 ] = "sync",
4045 [ BT848_RISC_WRITE123 >> 28 ] = "write123",
4046 [ BT848_RISC_SKIP123 >> 28 ] = "skip123",
4047 [ BT848_RISC_WRITE1S23 >> 28 ] = "write1s23",
4048 };
4049 static int incr[16] = {
4050 [ BT848_RISC_WRITE >> 28 ] = 2,
4051 [ BT848_RISC_JUMP >> 28 ] = 2,
4052 [ BT848_RISC_SYNC >> 28 ] = 2,
4053 [ BT848_RISC_WRITE123 >> 28 ] = 5,
4054 [ BT848_RISC_SKIP123 >> 28 ] = 2,
4055 [ BT848_RISC_WRITE1S23 >> 28 ] = 3,
4056 };
4057 static char *bits[] = {
4058 "be0", "be1", "be2", "be3/resync",
4059 "set0", "set1", "set2", "set3",
4060 "clr0", "clr1", "clr2", "clr3",
4061 "irq", "res", "eol", "sol",
4062 };
4063 int i;
4064
4065 printk("0x%08x [ %s", risc,
4066 instr[risc >> 28] ? instr[risc >> 28] : "INVALID");
4067 for (i = ARRAY_SIZE(bits)-1; i >= 0; i--)
4068 if (risc & (1 << (i + 12)))
4069 printk(" %s",bits[i]);
4070 printk(" count=%d ]\n", risc & 0xfff);
4071 return incr[risc >> 28] ? incr[risc >> 28] : 1;
4072 }
4073
4074 static void bttv_risc_disasm(struct bttv *btv,
4075 struct btcx_riscmem *risc)
4076 {
4077 unsigned int i,j,n;
4078
4079 printk("%s: risc disasm: %p [dma=0x%08lx]\n",
4080 btv->c.name, risc->cpu, (unsigned long)risc->dma);
4081 for (i = 0; i < (risc->size >> 2); i += n) {
4082 printk("%s: 0x%lx: ", btv->c.name,
4083 (unsigned long)(risc->dma + (i<<2)));
4084 n = bttv_risc_decode(risc->cpu[i]);
4085 for (j = 1; j < n; j++)
4086 printk("%s: 0x%lx: 0x%08x [ arg #%d ]\n",
4087 btv->c.name, (unsigned long)(risc->dma + ((i+j)<<2)),
4088 risc->cpu[i+j], j);
4089 if (0 == risc->cpu[i])
4090 break;
4091 }
4092 }
4093
4094 static void bttv_print_riscaddr(struct bttv *btv)
4095 {
4096 printk(" main: %08Lx\n",
4097 (unsigned long long)btv->main.dma);
4098 printk(" vbi : o=%08Lx e=%08Lx\n",
4099 btv->cvbi ? (unsigned long long)btv->cvbi->top.dma : 0,
4100 btv->cvbi ? (unsigned long long)btv->cvbi->bottom.dma : 0);
4101 printk(" cap : o=%08Lx e=%08Lx\n",
4102 btv->curr.top ? (unsigned long long)btv->curr.top->top.dma : 0,
4103 btv->curr.bottom ? (unsigned long long)btv->curr.bottom->bottom.dma : 0);
4104 printk(" scr : o=%08Lx e=%08Lx\n",
4105 btv->screen ? (unsigned long long)btv->screen->top.dma : 0,
4106 btv->screen ? (unsigned long long)btv->screen->bottom.dma : 0);
4107 bttv_risc_disasm(btv, &btv->main);
4108 }
4109
4110 /* ----------------------------------------------------------------------- */
4111 /* irq handler */
4112
4113 static char *irq_name[] = {
4114 "FMTCHG", // format change detected (525 vs. 625)
4115 "VSYNC", // vertical sync (new field)
4116 "HSYNC", // horizontal sync
4117 "OFLOW", // chroma/luma AGC overflow
4118 "HLOCK", // horizontal lock changed
4119 "VPRES", // video presence changed
4120 "6", "7",
4121 "I2CDONE", // hw irc operation finished
4122 "GPINT", // gpio port triggered irq
4123 "10",
4124 "RISCI", // risc instruction triggered irq
4125 "FBUS", // pixel data fifo dropped data (high pci bus latencies)
4126 "FTRGT", // pixel data fifo overrun
4127 "FDSR", // fifo data stream resyncronisation
4128 "PPERR", // parity error (data transfer)
4129 "RIPERR", // parity error (read risc instructions)
4130 "PABORT", // pci abort
4131 "OCERR", // risc instruction error
4132 "SCERR", // syncronisation error
4133 };
4134
4135 static void bttv_print_irqbits(u32 print, u32 mark)
4136 {
4137 unsigned int i;
4138
4139 printk("bits:");
4140 for (i = 0; i < ARRAY_SIZE(irq_name); i++) {
4141 if (print & (1 << i))
4142 printk(" %s",irq_name[i]);
4143 if (mark & (1 << i))
4144 printk("*");
4145 }
4146 }
4147
4148 static void bttv_irq_debug_low_latency(struct bttv *btv, u32 rc)
4149 {
4150 printk("bttv%d: irq: skipped frame [main=%lx,o_vbi=%lx,o_field=%lx,rc=%lx]\n",
4151 btv->c.nr,
4152 (unsigned long)btv->main.dma,
4153 (unsigned long)btv->main.cpu[RISC_SLOT_O_VBI+1],
4154 (unsigned long)btv->main.cpu[RISC_SLOT_O_FIELD+1],
4155 (unsigned long)rc);
4156
4157 if (0 == (btread(BT848_DSTATUS) & BT848_DSTATUS_HLOC)) {
4158 printk("bttv%d: Oh, there (temporarely?) is no input signal. "
4159 "Ok, then this is harmless, don't worry ;)\n",
4160 btv->c.nr);
4161 return;
4162 }
4163 printk("bttv%d: Uhm. Looks like we have unusual high IRQ latencies.\n",
4164 btv->c.nr);
4165 printk("bttv%d: Lets try to catch the culpit red-handed ...\n",
4166 btv->c.nr);
4167 dump_stack();
4168 }
4169
4170 static int
4171 bttv_irq_next_video(struct bttv *btv, struct bttv_buffer_set *set)
4172 {
4173 struct bttv_buffer *item;
4174
4175 memset(set,0,sizeof(*set));
4176
4177 /* capture request ? */
4178 if (!list_empty(&btv->capture)) {
4179 set->frame_irq = 1;
4180 item = list_entry(btv->capture.next, struct bttv_buffer, vb.queue);
4181 if (V4L2_FIELD_HAS_TOP(item->vb.field))
4182 set->top = item;
4183 if (V4L2_FIELD_HAS_BOTTOM(item->vb.field))
4184 set->bottom = item;
4185
4186 /* capture request for other field ? */
4187 if (!V4L2_FIELD_HAS_BOTH(item->vb.field) &&
4188 (item->vb.queue.next != &btv->capture)) {
4189 item = list_entry(item->vb.queue.next, struct bttv_buffer, vb.queue);
4190 if (!V4L2_FIELD_HAS_BOTH(item->vb.field)) {
4191 if (NULL == set->top &&
4192 V4L2_FIELD_TOP == item->vb.field) {
4193 set->top = item;
4194 }
4195 if (NULL == set->bottom &&
4196 V4L2_FIELD_BOTTOM == item->vb.field) {
4197 set->bottom = item;
4198 }
4199 if (NULL != set->top && NULL != set->bottom)
4200 set->top_irq = 2;
4201 }
4202 }
4203 }
4204
4205 /* screen overlay ? */
4206 if (NULL != btv->screen) {
4207 if (V4L2_FIELD_HAS_BOTH(btv->screen->vb.field)) {
4208 if (NULL == set->top && NULL == set->bottom) {
4209 set->top = btv->screen;
4210 set->bottom = btv->screen;
4211 }
4212 } else {
4213 if (V4L2_FIELD_TOP == btv->screen->vb.field &&
4214 NULL == set->top) {
4215 set->top = btv->screen;
4216 }
4217 if (V4L2_FIELD_BOTTOM == btv->screen->vb.field &&
4218 NULL == set->bottom) {
4219 set->bottom = btv->screen;
4220 }
4221 }
4222 }
4223
4224 dprintk("bttv%d: next set: top=%p bottom=%p [screen=%p,irq=%d,%d]\n",
4225 btv->c.nr,set->top, set->bottom,
4226 btv->screen,set->frame_irq,set->top_irq);
4227 return 0;
4228 }
4229
4230 static void
4231 bttv_irq_wakeup_video(struct bttv *btv, struct bttv_buffer_set *wakeup,
4232 struct bttv_buffer_set *curr, unsigned int state)
4233 {
4234 struct timeval ts;
4235
4236 do_gettimeofday(&ts);
4237
4238 if (wakeup->top == wakeup->bottom) {
4239 if (NULL != wakeup->top && curr->top != wakeup->top) {
4240 if (irq_debug > 1)
4241 printk("bttv%d: wakeup: both=%p\n",btv->c.nr,wakeup->top);
4242 wakeup->top->vb.ts = ts;
4243 wakeup->top->vb.field_count = btv->field_count;
4244 wakeup->top->vb.state = state;
4245 wake_up(&wakeup->top->vb.done);
4246 }
4247 } else {
4248 if (NULL != wakeup->top && curr->top != wakeup->top) {
4249 if (irq_debug > 1)
4250 printk("bttv%d: wakeup: top=%p\n",btv->c.nr,wakeup->top);
4251 wakeup->top->vb.ts = ts;
4252 wakeup->top->vb.field_count = btv->field_count;
4253 wakeup->top->vb.state = state;
4254 wake_up(&wakeup->top->vb.done);
4255 }
4256 if (NULL != wakeup->bottom && curr->bottom != wakeup->bottom) {
4257 if (irq_debug > 1)
4258 printk("bttv%d: wakeup: bottom=%p\n",btv->c.nr,wakeup->bottom);
4259 wakeup->bottom->vb.ts = ts;
4260 wakeup->bottom->vb.field_count = btv->field_count;
4261 wakeup->bottom->vb.state = state;
4262 wake_up(&wakeup->bottom->vb.done);
4263 }
4264 }
4265 }
4266
4267 static void
4268 bttv_irq_wakeup_vbi(struct bttv *btv, struct bttv_buffer *wakeup,
4269 unsigned int state)
4270 {
4271 struct timeval ts;
4272
4273 if (NULL == wakeup)
4274 return;
4275
4276 do_gettimeofday(&ts);
4277 wakeup->vb.ts = ts;
4278 wakeup->vb.field_count = btv->field_count;
4279 wakeup->vb.state = state;
4280 wake_up(&wakeup->vb.done);
4281 }
4282
4283 static void bttv_irq_timeout(unsigned long data)
4284 {
4285 struct bttv *btv = (struct bttv *)data;
4286 struct bttv_buffer_set old,new;
4287 struct bttv_buffer *ovbi;
4288 struct bttv_buffer *item;
4289 unsigned long flags;
4290
4291 if (bttv_verbose) {
4292 printk(KERN_INFO "bttv%d: timeout: drop=%d irq=%d/%d, risc=%08x, ",
4293 btv->c.nr, btv->framedrop, btv->irq_me, btv->irq_total,
4294 btread(BT848_RISC_COUNT));
4295 bttv_print_irqbits(btread(BT848_INT_STAT),0);
4296 printk("\n");
4297 }
4298
4299 spin_lock_irqsave(&btv->s_lock,flags);
4300
4301 /* deactivate stuff */
4302 memset(&new,0,sizeof(new));
4303 old = btv->curr;
4304 ovbi = btv->cvbi;
4305 btv->curr = new;
4306 btv->cvbi = NULL;
4307 btv->loop_irq = 0;
4308 bttv_buffer_activate_video(btv, &new);
4309 bttv_buffer_activate_vbi(btv, NULL);
4310 bttv_set_dma(btv, 0);
4311
4312 /* wake up */
4313 bttv_irq_wakeup_video(btv, &old, &new, STATE_ERROR);
4314 bttv_irq_wakeup_vbi(btv, ovbi, STATE_ERROR);
4315
4316 /* cancel all outstanding capture / vbi requests */
4317 while (!list_empty(&btv->capture)) {
4318 item = list_entry(btv->capture.next, struct bttv_buffer, vb.queue);
4319 list_del(&item->vb.queue);
4320 item->vb.state = STATE_ERROR;
4321 wake_up(&item->vb.done);
4322 }
4323 while (!list_empty(&btv->vcapture)) {
4324 item = list_entry(btv->vcapture.next, struct bttv_buffer, vb.queue);
4325 list_del(&item->vb.queue);
4326 item->vb.state = STATE_ERROR;
4327 wake_up(&item->vb.done);
4328 }
4329
4330 btv->errors++;
4331 spin_unlock_irqrestore(&btv->s_lock,flags);
4332 }
4333
4334 static void
4335 bttv_irq_wakeup_top(struct bttv *btv)
4336 {
4337 struct bttv_buffer *wakeup = btv->curr.top;
4338
4339 if (NULL == wakeup)
4340 return;
4341
4342 spin_lock(&btv->s_lock);
4343 btv->curr.top_irq = 0;
4344 btv->curr.top = NULL;
4345 bttv_risc_hook(btv, RISC_SLOT_O_FIELD, NULL, 0);
4346
4347 do_gettimeofday(&wakeup->vb.ts);
4348 wakeup->vb.field_count = btv->field_count;
4349 wakeup->vb.state = STATE_DONE;
4350 wake_up(&wakeup->vb.done);
4351 spin_unlock(&btv->s_lock);
4352 }
4353
4354 static inline int is_active(struct btcx_riscmem *risc, u32 rc)
4355 {
4356 if (rc < risc->dma)
4357 return 0;
4358 if (rc > risc->dma + risc->size)
4359 return 0;
4360 return 1;
4361 }
4362
4363 static void
4364 bttv_irq_switch_video(struct bttv *btv)
4365 {
4366 struct bttv_buffer_set new;
4367 struct bttv_buffer_set old;
4368 dma_addr_t rc;
4369
4370 spin_lock(&btv->s_lock);
4371
4372 /* new buffer set */
4373 bttv_irq_next_video(btv, &new);
4374 rc = btread(BT848_RISC_COUNT);
4375 if ((btv->curr.top && is_active(&btv->curr.top->top, rc)) ||
4376 (btv->curr.bottom && is_active(&btv->curr.bottom->bottom, rc))) {
4377 btv->framedrop++;
4378 if (debug_latency)
4379 bttv_irq_debug_low_latency(btv, rc);
4380 spin_unlock(&btv->s_lock);
4381 return;
4382 }
4383
4384 /* switch over */
4385 old = btv->curr;
4386 btv->curr = new;
4387 btv->loop_irq &= ~1;
4388 bttv_buffer_activate_video(btv, &new);
4389 bttv_set_dma(btv, 0);
4390
4391 /* switch input */
4392 if (UNSET != btv->new_input) {
4393 video_mux(btv,btv->new_input);
4394 btv->new_input = UNSET;
4395 }
4396
4397 /* wake up finished buffers */
4398 bttv_irq_wakeup_video(btv, &old, &new, STATE_DONE);
4399 spin_unlock(&btv->s_lock);
4400 }
4401
4402 static void
4403 bttv_irq_switch_vbi(struct bttv *btv)
4404 {
4405 struct bttv_buffer *new = NULL;
4406 struct bttv_buffer *old;
4407 u32 rc;
4408
4409 spin_lock(&btv->s_lock);
4410
4411 if (!list_empty(&btv->vcapture))
4412 new = list_entry(btv->vcapture.next, struct bttv_buffer, vb.queue);
4413 old = btv->cvbi;
4414
4415 rc = btread(BT848_RISC_COUNT);
4416 if (NULL != old && (is_active(&old->top, rc) ||
4417 is_active(&old->bottom, rc))) {
4418 btv->framedrop++;
4419 if (debug_latency)
4420 bttv_irq_debug_low_latency(btv, rc);
4421 spin_unlock(&btv->s_lock);
4422 return;
4423 }
4424
4425 /* switch */
4426 btv->cvbi = new;
4427 btv->loop_irq &= ~4;
4428 bttv_buffer_activate_vbi(btv, new);
4429 bttv_set_dma(btv, 0);
4430
4431 bttv_irq_wakeup_vbi(btv, old, STATE_DONE);
4432 spin_unlock(&btv->s_lock);
4433 }
4434
4435 static irqreturn_t bttv_irq(int irq, void *dev_id)
4436 {
4437 u32 stat,astat;
4438 u32 dstat;
4439 int count;
4440 struct bttv *btv;
4441 int handled = 0;
4442
4443 btv=(struct bttv *)dev_id;
4444
4445 if (btv->custom_irq)
4446 handled = btv->custom_irq(btv);
4447
4448 count=0;
4449 while (1) {
4450 /* get/clear interrupt status bits */
4451 stat=btread(BT848_INT_STAT);
4452 astat=stat&btread(BT848_INT_MASK);
4453 if (!astat)
4454 break;
4455 handled = 1;
4456 btwrite(stat,BT848_INT_STAT);
4457
4458 /* get device status bits */
4459 dstat=btread(BT848_DSTATUS);
4460
4461 if (irq_debug) {
4462 printk(KERN_DEBUG "bttv%d: irq loop=%d fc=%d "
4463 "riscs=%x, riscc=%08x, ",
4464 btv->c.nr, count, btv->field_count,
4465 stat>>28, btread(BT848_RISC_COUNT));
4466 bttv_print_irqbits(stat,astat);
4467 if (stat & BT848_INT_HLOCK)
4468 printk(" HLOC => %s", (dstat & BT848_DSTATUS_HLOC)
4469 ? "yes" : "no");
4470 if (stat & BT848_INT_VPRES)
4471 printk(" PRES => %s", (dstat & BT848_DSTATUS_PRES)
4472 ? "yes" : "no");
4473 if (stat & BT848_INT_FMTCHG)
4474 printk(" NUML => %s", (dstat & BT848_DSTATUS_NUML)
4475 ? "625" : "525");
4476 printk("\n");
4477 }
4478
4479 if (astat&BT848_INT_VSYNC)
4480 btv->field_count++;
4481
4482 if ((astat & BT848_INT_GPINT) && btv->remote) {
4483 wake_up(&btv->gpioq);
4484 bttv_input_irq(btv);
4485 }
4486
4487 if (astat & BT848_INT_I2CDONE) {
4488 btv->i2c_done = stat;
4489 wake_up(&btv->i2c_queue);
4490 }
4491
4492 if ((astat & BT848_INT_RISCI) && (stat & (4<<28)))
4493 bttv_irq_switch_vbi(btv);
4494
4495 if ((astat & BT848_INT_RISCI) && (stat & (2<<28)))
4496 bttv_irq_wakeup_top(btv);
4497
4498 if ((astat & BT848_INT_RISCI) && (stat & (1<<28)))
4499 bttv_irq_switch_video(btv);
4500
4501 if ((astat & BT848_INT_HLOCK) && btv->opt_automute)
4502 audio_mute(btv, btv->mute); /* trigger automute */
4503
4504 if (astat & (BT848_INT_SCERR|BT848_INT_OCERR)) {
4505 printk(KERN_INFO "bttv%d: %s%s @ %08x,",btv->c.nr,
4506 (astat & BT848_INT_SCERR) ? "SCERR" : "",
4507 (astat & BT848_INT_OCERR) ? "OCERR" : "",
4508 btread(BT848_RISC_COUNT));
4509 bttv_print_irqbits(stat,astat);
4510 printk("\n");
4511 if (bttv_debug)
4512 bttv_print_riscaddr(btv);
4513 }
4514 if (fdsr && astat & BT848_INT_FDSR) {
4515 printk(KERN_INFO "bttv%d: FDSR @ %08x\n",
4516 btv->c.nr,btread(BT848_RISC_COUNT));
4517 if (bttv_debug)
4518 bttv_print_riscaddr(btv);
4519 }
4520
4521 count++;
4522 if (count > 4) {
4523
4524 if (count > 8 || !(astat & BT848_INT_GPINT)) {
4525 btwrite(0, BT848_INT_MASK);
4526
4527 printk(KERN_ERR
4528 "bttv%d: IRQ lockup, cleared int mask [", btv->c.nr);
4529 } else {
4530 printk(KERN_ERR
4531 "bttv%d: IRQ lockup, clearing GPINT from int mask [", btv->c.nr);
4532
4533 btwrite(btread(BT848_INT_MASK) & (-1 ^ BT848_INT_GPINT),
4534 BT848_INT_MASK);
4535 };
4536
4537 bttv_print_irqbits(stat,astat);
4538
4539 printk("]\n");
4540 }
4541 }
4542 btv->irq_total++;
4543 if (handled)
4544 btv->irq_me++;
4545 return IRQ_RETVAL(handled);
4546 }
4547
4548
4549 /* ----------------------------------------------------------------------- */
4550 /* initialitation */
4551
4552 static struct video_device *vdev_init(struct bttv *btv,
4553 struct video_device *template,
4554 char *type)
4555 {
4556 struct video_device *vfd;
4557
4558 vfd = video_device_alloc();
4559 if (NULL == vfd)
4560 return NULL;
4561 *vfd = *template;
4562 vfd->minor = -1;
4563 vfd->dev = &btv->c.pci->dev;
4564 vfd->release = video_device_release;
4565 snprintf(vfd->name, sizeof(vfd->name), "BT%d%s %s (%s)",
4566 btv->id, (btv->id==848 && btv->revision==0x12) ? "A" : "",
4567 type, bttv_tvcards[btv->c.type].name);
4568 return vfd;
4569 }
4570
4571 static void bttv_unregister_video(struct bttv *btv)
4572 {
4573 if (btv->video_dev) {
4574 if (-1 != btv->video_dev->minor)
4575 video_unregister_device(btv->video_dev);
4576 else
4577 video_device_release(btv->video_dev);
4578 btv->video_dev = NULL;
4579 }
4580 if (btv->vbi_dev) {
4581 if (-1 != btv->vbi_dev->minor)
4582 video_unregister_device(btv->vbi_dev);
4583 else
4584 video_device_release(btv->vbi_dev);
4585 btv->vbi_dev = NULL;
4586 }
4587 if (btv->radio_dev) {
4588 if (-1 != btv->radio_dev->minor)
4589 video_unregister_device(btv->radio_dev);
4590 else
4591 video_device_release(btv->radio_dev);
4592 btv->radio_dev = NULL;
4593 }
4594 }
4595
4596 /* register video4linux devices */
4597 static int __devinit bttv_register_video(struct bttv *btv)
4598 {
4599 if (no_overlay <= 0) {
4600 bttv_video_template.type |= VID_TYPE_OVERLAY;
4601 } else {
4602 printk("bttv: Overlay support disabled.\n");
4603 }
4604
4605 /* video */
4606 btv->video_dev = vdev_init(btv, &bttv_video_template, "video");
4607 if (NULL == btv->video_dev)
4608 goto err;
4609 if (video_register_device(btv->video_dev,VFL_TYPE_GRABBER,video_nr)<0)
4610 goto err;
4611 printk(KERN_INFO "bttv%d: registered device video%d\n",
4612 btv->c.nr,btv->video_dev->minor & 0x1f);
4613 if (device_create_file(&btv->video_dev->class_dev,
4614 &dev_attr_card)<0) {
4615 printk(KERN_ERR "bttv%d: device_create_file 'card' "
4616 "failed\n", btv->c.nr);
4617 goto err;
4618 }
4619
4620 /* vbi */
4621 btv->vbi_dev = vdev_init(btv, &bttv_vbi_template, "vbi");
4622 if (NULL == btv->vbi_dev)
4623 goto err;
4624 if (video_register_device(btv->vbi_dev,VFL_TYPE_VBI,vbi_nr)<0)
4625 goto err;
4626 printk(KERN_INFO "bttv%d: registered device vbi%d\n",
4627 btv->c.nr,btv->vbi_dev->minor & 0x1f);
4628
4629 if (!btv->has_radio)
4630 return 0;
4631 /* radio */
4632 btv->radio_dev = vdev_init(btv, &radio_template, "radio");
4633 if (NULL == btv->radio_dev)
4634 goto err;
4635 if (video_register_device(btv->radio_dev, VFL_TYPE_RADIO,radio_nr)<0)
4636 goto err;
4637 printk(KERN_INFO "bttv%d: registered device radio%d\n",
4638 btv->c.nr,btv->radio_dev->minor & 0x1f);
4639
4640 /* all done */
4641 return 0;
4642
4643 err:
4644 bttv_unregister_video(btv);
4645 return -1;
4646 }
4647
4648
4649 /* on OpenFirmware machines (PowerMac at least), PCI memory cycle */
4650 /* response on cards with no firmware is not enabled by OF */
4651 static void pci_set_command(struct pci_dev *dev)
4652 {
4653 #if defined(__powerpc__)
4654 unsigned int cmd;
4655
4656 pci_read_config_dword(dev, PCI_COMMAND, &cmd);
4657 cmd = (cmd | PCI_COMMAND_MEMORY );
4658 pci_write_config_dword(dev, PCI_COMMAND, cmd);
4659 #endif
4660 }
4661
4662 static int __devinit bttv_probe(struct pci_dev *dev,
4663 const struct pci_device_id *pci_id)
4664 {
4665 int result;
4666 unsigned char lat;
4667 struct bttv *btv;
4668
4669 if (bttv_num == BTTV_MAX)
4670 return -ENOMEM;
4671 printk(KERN_INFO "bttv: Bt8xx card found (%d).\n", bttv_num);
4672 btv=&bttvs[bttv_num];
4673 memset(btv,0,sizeof(*btv));
4674 btv->c.nr = bttv_num;
4675 sprintf(btv->c.name,"bttv%d",btv->c.nr);
4676
4677 /* initialize structs / fill in defaults */
4678 mutex_init(&btv->lock);
4679 spin_lock_init(&btv->s_lock);
4680 spin_lock_init(&btv->gpio_lock);
4681 init_waitqueue_head(&btv->gpioq);
4682 init_waitqueue_head(&btv->i2c_queue);
4683 INIT_LIST_HEAD(&btv->c.subs);
4684 INIT_LIST_HEAD(&btv->capture);
4685 INIT_LIST_HEAD(&btv->vcapture);
4686 v4l2_prio_init(&btv->prio);
4687
4688 init_timer(&btv->timeout);
4689 btv->timeout.function = bttv_irq_timeout;
4690 btv->timeout.data = (unsigned long)btv;
4691
4692 btv->i2c_rc = -1;
4693 btv->tuner_type = UNSET;
4694 btv->new_input = UNSET;
4695 btv->has_radio=radio[btv->c.nr];
4696
4697 /* pci stuff (init, get irq/mmio, ... */
4698 btv->c.pci = dev;
4699 btv->id = dev->device;
4700 if (pci_enable_device(dev)) {
4701 printk(KERN_WARNING "bttv%d: Can't enable device.\n",
4702 btv->c.nr);
4703 return -EIO;
4704 }
4705 if (pci_set_dma_mask(dev, DMA_32BIT_MASK)) {
4706 printk(KERN_WARNING "bttv%d: No suitable DMA available.\n",
4707 btv->c.nr);
4708 return -EIO;
4709 }
4710 if (!request_mem_region(pci_resource_start(dev,0),
4711 pci_resource_len(dev,0),
4712 btv->c.name)) {
4713 printk(KERN_WARNING "bttv%d: can't request iomem (0x%llx).\n",
4714 btv->c.nr,
4715 (unsigned long long)pci_resource_start(dev,0));
4716 return -EBUSY;
4717 }
4718 pci_set_master(dev);
4719 pci_set_command(dev);
4720 pci_set_drvdata(dev,btv);
4721
4722 pci_read_config_byte(dev, PCI_CLASS_REVISION, &btv->revision);
4723 pci_read_config_byte(dev, PCI_LATENCY_TIMER, &lat);
4724 printk(KERN_INFO "bttv%d: Bt%d (rev %d) at %s, ",
4725 bttv_num,btv->id, btv->revision, pci_name(dev));
4726 printk("irq: %d, latency: %d, mmio: 0x%llx\n",
4727 btv->c.pci->irq, lat,
4728 (unsigned long long)pci_resource_start(dev,0));
4729 schedule();
4730
4731 btv->bt848_mmio = ioremap(pci_resource_start(dev, 0), 0x1000);
4732 if (NULL == btv->bt848_mmio) {
4733 printk("bttv%d: ioremap() failed\n", btv->c.nr);
4734 result = -EIO;
4735 goto fail1;
4736 }
4737
4738 /* identify card */
4739 bttv_idcard(btv);
4740
4741 /* disable irqs, register irq handler */
4742 btwrite(0, BT848_INT_MASK);
4743 result = request_irq(btv->c.pci->irq, bttv_irq,
4744 IRQF_SHARED | IRQF_DISABLED,btv->c.name,(void *)btv);
4745 if (result < 0) {
4746 printk(KERN_ERR "bttv%d: can't get IRQ %d\n",
4747 bttv_num,btv->c.pci->irq);
4748 goto fail1;
4749 }
4750
4751 if (0 != bttv_handle_chipset(btv)) {
4752 result = -EIO;
4753 goto fail2;
4754 }
4755
4756 /* init options from insmod args */
4757 btv->opt_combfilter = combfilter;
4758 btv->opt_lumafilter = lumafilter;
4759 btv->opt_automute = automute;
4760 btv->opt_chroma_agc = chroma_agc;
4761 btv->opt_adc_crush = adc_crush;
4762 btv->opt_vcr_hack = vcr_hack;
4763 btv->opt_whitecrush_upper = whitecrush_upper;
4764 btv->opt_whitecrush_lower = whitecrush_lower;
4765 btv->opt_uv_ratio = uv_ratio;
4766 btv->opt_full_luma_range = full_luma_range;
4767 btv->opt_coring = coring;
4768
4769 /* fill struct bttv with some useful defaults */
4770 btv->init.btv = btv;
4771 btv->init.ov.w.width = 320;
4772 btv->init.ov.w.height = 240;
4773 btv->init.fmt = format_by_palette(VIDEO_PALETTE_RGB24);
4774 btv->init.width = 320;
4775 btv->init.height = 240;
4776 btv->input = 0;
4777
4778 /* initialize hardware */
4779 if (bttv_gpio)
4780 bttv_gpio_tracking(btv,"pre-init");
4781
4782 bttv_risc_init_main(btv);
4783 init_bt848(btv);
4784
4785 /* gpio */
4786 btwrite(0x00, BT848_GPIO_REG_INP);
4787 btwrite(0x00, BT848_GPIO_OUT_EN);
4788 if (bttv_verbose)
4789 bttv_gpio_tracking(btv,"init");
4790
4791 /* needs to be done before i2c is registered */
4792 bttv_init_card1(btv);
4793
4794 /* register i2c + gpio */
4795 init_bttv_i2c(btv);
4796
4797 /* some card-specific stuff (needs working i2c) */
4798 bttv_init_card2(btv);
4799 init_irqreg(btv);
4800
4801 /* register video4linux + input */
4802 if (!bttv_tvcards[btv->c.type].no_video) {
4803 bttv_register_video(btv);
4804 bt848_bright(btv,32768);
4805 bt848_contrast(btv,32768);
4806 bt848_hue(btv,32768);
4807 bt848_sat(btv,32768);
4808 audio_mute(btv, 1);
4809 set_input(btv, 0, btv->tvnorm);
4810 bttv_crop_reset(&btv->crop[0], btv->tvnorm);
4811 btv->crop[1] = btv->crop[0]; /* current = default */
4812 disclaim_vbi_lines(btv);
4813 disclaim_video_lines(btv);
4814 }
4815
4816 /* add subdevices and autoload dvb-bt8xx if needed */
4817 if (bttv_tvcards[btv->c.type].has_dvb) {
4818 bttv_sub_add_device(&btv->c, "dvb");
4819 request_modules(btv);
4820 }
4821
4822 bttv_input_init(btv);
4823
4824 /* everything is fine */
4825 bttv_num++;
4826 return 0;
4827
4828 fail2:
4829 free_irq(btv->c.pci->irq,btv);
4830
4831 fail1:
4832 if (btv->bt848_mmio)
4833 iounmap(btv->bt848_mmio);
4834 release_mem_region(pci_resource_start(btv->c.pci,0),
4835 pci_resource_len(btv->c.pci,0));
4836 pci_set_drvdata(dev,NULL);
4837 return result;
4838 }
4839
4840 static void __devexit bttv_remove(struct pci_dev *pci_dev)
4841 {
4842 struct bttv *btv = pci_get_drvdata(pci_dev);
4843
4844 if (bttv_verbose)
4845 printk("bttv%d: unloading\n",btv->c.nr);
4846
4847 /* shutdown everything (DMA+IRQs) */
4848 btand(~15, BT848_GPIO_DMA_CTL);
4849 btwrite(0, BT848_INT_MASK);
4850 btwrite(~0x0, BT848_INT_STAT);
4851 btwrite(0x0, BT848_GPIO_OUT_EN);
4852 if (bttv_gpio)
4853 bttv_gpio_tracking(btv,"cleanup");
4854
4855 /* tell gpio modules we are leaving ... */
4856 btv->shutdown=1;
4857 wake_up(&btv->gpioq);
4858 bttv_input_fini(btv);
4859 bttv_sub_del_devices(&btv->c);
4860
4861 /* unregister i2c_bus + input */
4862 fini_bttv_i2c(btv);
4863
4864 /* unregister video4linux */
4865 bttv_unregister_video(btv);
4866
4867 /* free allocated memory */
4868 btcx_riscmem_free(btv->c.pci,&btv->main);
4869
4870 /* free ressources */
4871 free_irq(btv->c.pci->irq,btv);
4872 iounmap(btv->bt848_mmio);
4873 release_mem_region(pci_resource_start(btv->c.pci,0),
4874 pci_resource_len(btv->c.pci,0));
4875
4876 pci_set_drvdata(pci_dev, NULL);
4877 return;
4878 }
4879
4880 #ifdef CONFIG_PM
4881 static int bttv_suspend(struct pci_dev *pci_dev, pm_message_t state)
4882 {
4883 struct bttv *btv = pci_get_drvdata(pci_dev);
4884 struct bttv_buffer_set idle;
4885 unsigned long flags;
4886
4887 dprintk("bttv%d: suspend %d\n", btv->c.nr, state.event);
4888
4889 /* stop dma + irqs */
4890 spin_lock_irqsave(&btv->s_lock,flags);
4891 memset(&idle, 0, sizeof(idle));
4892 btv->state.video = btv->curr;
4893 btv->state.vbi = btv->cvbi;
4894 btv->state.loop_irq = btv->loop_irq;
4895 btv->curr = idle;
4896 btv->loop_irq = 0;
4897 bttv_buffer_activate_video(btv, &idle);
4898 bttv_buffer_activate_vbi(btv, NULL);
4899 bttv_set_dma(btv, 0);
4900 btwrite(0, BT848_INT_MASK);
4901 spin_unlock_irqrestore(&btv->s_lock,flags);
4902
4903 /* save bt878 state */
4904 btv->state.gpio_enable = btread(BT848_GPIO_OUT_EN);
4905 btv->state.gpio_data = gpio_read();
4906
4907 /* save pci state */
4908 pci_save_state(pci_dev);
4909 if (0 != pci_set_power_state(pci_dev, pci_choose_state(pci_dev, state))) {
4910 pci_disable_device(pci_dev);
4911 btv->state.disabled = 1;
4912 }
4913 return 0;
4914 }
4915
4916 static int bttv_resume(struct pci_dev *pci_dev)
4917 {
4918 struct bttv *btv = pci_get_drvdata(pci_dev);
4919 unsigned long flags;
4920 int err;
4921
4922 dprintk("bttv%d: resume\n", btv->c.nr);
4923
4924 /* restore pci state */
4925 if (btv->state.disabled) {
4926 err=pci_enable_device(pci_dev);
4927 if (err) {
4928 printk(KERN_WARNING "bttv%d: Can't enable device.\n",
4929 btv->c.nr);
4930 return err;
4931 }
4932 btv->state.disabled = 0;
4933 }
4934 err=pci_set_power_state(pci_dev, PCI_D0);
4935 if (err) {
4936 pci_disable_device(pci_dev);
4937 printk(KERN_WARNING "bttv%d: Can't enable device.\n",
4938 btv->c.nr);
4939 btv->state.disabled = 1;
4940 return err;
4941 }
4942
4943 pci_restore_state(pci_dev);
4944
4945 /* restore bt878 state */
4946 bttv_reinit_bt848(btv);
4947 gpio_inout(0xffffff, btv->state.gpio_enable);
4948 gpio_write(btv->state.gpio_data);
4949
4950 /* restart dma */
4951 spin_lock_irqsave(&btv->s_lock,flags);
4952 btv->curr = btv->state.video;
4953 btv->cvbi = btv->state.vbi;
4954 btv->loop_irq = btv->state.loop_irq;
4955 bttv_buffer_activate_video(btv, &btv->curr);
4956 bttv_buffer_activate_vbi(btv, btv->cvbi);
4957 bttv_set_dma(btv, 0);
4958 spin_unlock_irqrestore(&btv->s_lock,flags);
4959 return 0;
4960 }
4961 #endif
4962
4963 static struct pci_device_id bttv_pci_tbl[] = {
4964 {PCI_VENDOR_ID_BROOKTREE, PCI_DEVICE_ID_BT848,
4965 PCI_ANY_ID, PCI_ANY_ID, 0, 0, 0},
4966 {PCI_VENDOR_ID_BROOKTREE, PCI_DEVICE_ID_BT849,
4967 PCI_ANY_ID, PCI_ANY_ID, 0, 0, 0},
4968 {PCI_VENDOR_ID_BROOKTREE, PCI_DEVICE_ID_BT878,
4969 PCI_ANY_ID, PCI_ANY_ID, 0, 0, 0},
4970 {PCI_VENDOR_ID_BROOKTREE, PCI_DEVICE_ID_BT879,
4971 PCI_ANY_ID, PCI_ANY_ID, 0, 0, 0},
4972 {0,}
4973 };
4974
4975 MODULE_DEVICE_TABLE(pci, bttv_pci_tbl);
4976
4977 static struct pci_driver bttv_pci_driver = {
4978 .name = "bttv",
4979 .id_table = bttv_pci_tbl,
4980 .probe = bttv_probe,
4981 .remove = __devexit_p(bttv_remove),
4982 #ifdef CONFIG_PM
4983 .suspend = bttv_suspend,
4984 .resume = bttv_resume,
4985 #endif
4986 };
4987
4988 static int bttv_init_module(void)
4989 {
4990 int ret;
4991
4992 bttv_num = 0;
4993
4994 printk(KERN_INFO "bttv: driver version %d.%d.%d loaded\n",
4995 (BTTV_VERSION_CODE >> 16) & 0xff,
4996 (BTTV_VERSION_CODE >> 8) & 0xff,
4997 BTTV_VERSION_CODE & 0xff);
4998 #ifdef SNAPSHOT
4999 printk(KERN_INFO "bttv: snapshot date %04d-%02d-%02d\n",
5000 SNAPSHOT/10000, (SNAPSHOT/100)%100, SNAPSHOT%100);
5001 #endif
5002 if (gbuffers < 2 || gbuffers > VIDEO_MAX_FRAME)
5003 gbuffers = 2;
5004 if (gbufsize < 0 || gbufsize > BTTV_MAX_FBUF)
5005 gbufsize = BTTV_MAX_FBUF;
5006 gbufsize = (gbufsize + PAGE_SIZE - 1) & PAGE_MASK;
5007 if (bttv_verbose)
5008 printk(KERN_INFO "bttv: using %d buffers with %dk (%d pages) each for capture\n",
5009 gbuffers, gbufsize >> 10, gbufsize >> PAGE_SHIFT);
5010
5011 bttv_check_chipset();
5012
5013 ret = bus_register(&bttv_sub_bus_type);
5014 if (ret < 0) {
5015 printk(KERN_WARNING "bttv: bus_register error: %d\n", ret);
5016 return ret;
5017 }
5018 return pci_register_driver(&bttv_pci_driver);
5019 }
5020
5021 static void bttv_cleanup_module(void)
5022 {
5023 pci_unregister_driver(&bttv_pci_driver);
5024 bus_unregister(&bttv_sub_bus_type);
5025 return;
5026 }
5027
5028 module_init(bttv_init_module);
5029 module_exit(bttv_cleanup_module);
5030
5031 /*
5032 * Local variables:
5033 * c-basic-offset: 8
5034 * End:
5035 */
kernel source for telekom puls (alcatel/mediatek)