?  search:
summary | log | graphiclog1 | graphiclog2 | commit | commitdiff | tree | refs | edit | fork
blame | history | raw | HEAD
V4L/DVB (8482): videodev: move all ioctl callbacks to a new v4l2_ioctl_ops struct
[firewire-audio.git] / drivers / media / video / bt8xx / bttv-driver.c
blobdfa399da587d51fe099783240a88bbeda439003a
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 V4L1 removal from:
13 (c) 2005-2006 Nickolay V. Shmyrev <nshmyrev@yandex.ru>
14
15 Fixes to be fully V4L2 compliant by
16 (c) 2006 Mauro Carvalho Chehab <mchehab@infradead.org>
17
18 Cropping and overscan support
19 Copyright (C) 2005, 2006 Michael H. Schimek <mschimek@gmx.at>
20 Sponsored by OPQ Systems AB
21
22 This program is free software; you can redistribute it and/or modify
23 it under the terms of the GNU General Public License as published by
24 the Free Software Foundation; either version 2 of the License, or
25 (at your option) any later version.
26
27 This program is distributed in the hope that it will be useful,
28 but WITHOUT ANY WARRANTY; without even the implied warranty of
29 MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
30 GNU General Public License for more details.
31
32 You should have received a copy of the GNU General Public License
33 along with this program; if not, write to the Free Software
34 Foundation, Inc., 675 Mass Ave, Cambridge, MA 02139, USA.
35 */
36
37 #include <linux/init.h>
38 #include <linux/module.h>
39 #include <linux/delay.h>
40 #include <linux/errno.h>
41 #include <linux/fs.h>
42 #include <linux/kernel.h>
43 #include <linux/sched.h>
44 #include <linux/interrupt.h>
45 #include <linux/kdev_t.h>
46 #include "bttvp.h"
47 #include <media/v4l2-common.h>
48 #include <media/v4l2-ioctl.h>
49 #include <media/tvaudio.h>
50 #include <media/msp3400.h>
51
52 #include <linux/dma-mapping.h>
53
54 #include <asm/io.h>
55 #include <asm/byteorder.h>
56
57 #include <media/rds.h>
58
59
60 unsigned int bttv_num; /* number of Bt848s in use */
61 struct bttv bttvs[BTTV_MAX];
62
63 unsigned int bttv_debug;
64 unsigned int bttv_verbose = 1;
65 unsigned int bttv_gpio;
66
67 /* config variables */
68 #ifdef __BIG_ENDIAN
69 static unsigned int bigendian=1;
70 #else
71 static unsigned int bigendian;
72 #endif
73 static unsigned int radio[BTTV_MAX];
74 static unsigned int irq_debug;
75 static unsigned int gbuffers = 8;
76 static unsigned int gbufsize = 0x208000;
77 static unsigned int reset_crop = 1;
78
79 static int video_nr = -1;
80 static int radio_nr = -1;
81 static int vbi_nr = -1;
82 static int debug_latency;
83
84 static unsigned int fdsr;
85
86 /* options */
87 static unsigned int combfilter;
88 static unsigned int lumafilter;
89 static unsigned int automute = 1;
90 static unsigned int chroma_agc;
91 static unsigned int adc_crush = 1;
92 static unsigned int whitecrush_upper = 0xCF;
93 static unsigned int whitecrush_lower = 0x7F;
94 static unsigned int vcr_hack;
95 static unsigned int irq_iswitch;
96 static unsigned int uv_ratio = 50;
97 static unsigned int full_luma_range;
98 static unsigned int coring;
99 extern int no_overlay;
100
101 /* API features (turn on/off stuff for testing) */
102 static unsigned int v4l2 = 1;
103
104 /* insmod args */
105 module_param(bttv_verbose, int, 0644);
106 module_param(bttv_gpio, int, 0644);
107 module_param(bttv_debug, int, 0644);
108 module_param(irq_debug, int, 0644);
109 module_param(debug_latency, int, 0644);
110
111 module_param(fdsr, int, 0444);
112 module_param(video_nr, int, 0444);
113 module_param(radio_nr, int, 0444);
114 module_param(vbi_nr, int, 0444);
115 module_param(gbuffers, int, 0444);
116 module_param(gbufsize, int, 0444);
117 module_param(reset_crop, int, 0444);
118
119 module_param(v4l2, int, 0644);
120 module_param(bigendian, int, 0644);
121 module_param(irq_iswitch, int, 0644);
122 module_param(combfilter, int, 0444);
123 module_param(lumafilter, int, 0444);
124 module_param(automute, int, 0444);
125 module_param(chroma_agc, int, 0444);
126 module_param(adc_crush, int, 0444);
127 module_param(whitecrush_upper, int, 0444);
128 module_param(whitecrush_lower, int, 0444);
129 module_param(vcr_hack, int, 0444);
130 module_param(uv_ratio, int, 0444);
131 module_param(full_luma_range, int, 0444);
132 module_param(coring, int, 0444);
133
134 module_param_array(radio, int, NULL, 0444);
135
136 MODULE_PARM_DESC(radio,"The TV card supports radio, default is 0 (no)");
137 MODULE_PARM_DESC(bigendian,"byte order of the framebuffer, default is native endian");
138 MODULE_PARM_DESC(bttv_verbose,"verbose startup messages, default is 1 (yes)");
139 MODULE_PARM_DESC(bttv_gpio,"log gpio changes, default is 0 (no)");
140 MODULE_PARM_DESC(bttv_debug,"debug messages, default is 0 (no)");
141 MODULE_PARM_DESC(irq_debug,"irq handler debug messages, default is 0 (no)");
142 MODULE_PARM_DESC(gbuffers,"number of capture buffers. range 2-32, default 8");
143 MODULE_PARM_DESC(gbufsize,"size of the capture buffers, default is 0x208000");
144 MODULE_PARM_DESC(reset_crop,"reset cropping parameters at open(), default "
145 "is 1 (yes) for compatibility with older applications");
146 MODULE_PARM_DESC(automute,"mute audio on bad/missing video signal, default is 1 (yes)");
147 MODULE_PARM_DESC(chroma_agc,"enables the AGC of chroma signal, default is 0 (no)");
148 MODULE_PARM_DESC(adc_crush,"enables the luminance ADC crush, default is 1 (yes)");
149 MODULE_PARM_DESC(whitecrush_upper,"sets the white crush upper value, default is 207");
150 MODULE_PARM_DESC(whitecrush_lower,"sets the white crush lower value, default is 127");
151 MODULE_PARM_DESC(vcr_hack,"enables the VCR hack (improves synch on poor VCR tapes), default is 0 (no)");
152 MODULE_PARM_DESC(irq_iswitch,"switch inputs in irq handler");
153 MODULE_PARM_DESC(uv_ratio,"ratio between u and v gains, default is 50");
154 MODULE_PARM_DESC(full_luma_range,"use the full luma range, default is 0 (no)");
155 MODULE_PARM_DESC(coring,"set the luma coring level, default is 0 (no)");
156
157 MODULE_DESCRIPTION("bttv - v4l/v4l2 driver module for bt848/878 based cards");
158 MODULE_AUTHOR("Ralph Metzler & Marcus Metzler & Gerd Knorr");
159 MODULE_LICENSE("GPL");
160
161 /* ----------------------------------------------------------------------- */
162 /* sysfs */
163
164 static ssize_t show_card(struct device *cd,
165 struct device_attribute *attr, char *buf)
166 {
167 struct video_device *vfd = container_of(cd, struct video_device, dev);
168 struct bttv *btv = dev_get_drvdata(vfd->parent);
169 return sprintf(buf, "%d\n", btv ? btv->c.type : UNSET);
170 }
171 static DEVICE_ATTR(card, S_IRUGO, show_card, NULL);
172
173 /* ----------------------------------------------------------------------- */
174 /* dvb auto-load setup */
175 #if defined(CONFIG_MODULES) && defined(MODULE)
176 static void request_module_async(struct work_struct *work)
177 {
178 request_module("dvb-bt8xx");
179 }
180
181 static void request_modules(struct bttv *dev)
182 {
183 INIT_WORK(&dev->request_module_wk, request_module_async);
184 schedule_work(&dev->request_module_wk);
185 }
186 #else
187 #define request_modules(dev)
188 #endif /* CONFIG_MODULES */
189
190
191 /* ----------------------------------------------------------------------- */
192 /* static data */
193
194 /* special timing tables from conexant... */
195 static u8 SRAM_Table[][60] =
196 {
197 /* PAL digital input over GPIO[7:0] */
198 {
199 45, // 45 bytes following
200 0x36,0x11,0x01,0x00,0x90,0x02,0x05,0x10,0x04,0x16,
201 0x12,0x05,0x11,0x00,0x04,0x12,0xC0,0x00,0x31,0x00,
202 0x06,0x51,0x08,0x03,0x89,0x08,0x07,0xC0,0x44,0x00,
203 0x81,0x01,0x01,0xA9,0x0D,0x02,0x02,0x50,0x03,0x37,
204 0x37,0x00,0xAF,0x21,0x00
205 },
206 /* NTSC digital input over GPIO[7:0] */
207 {
208 51, // 51 bytes following
209 0x0C,0xC0,0x00,0x00,0x90,0x02,0x03,0x10,0x03,0x06,
210 0x10,0x04,0x12,0x12,0x05,0x02,0x13,0x04,0x19,0x00,
211 0x04,0x39,0x00,0x06,0x59,0x08,0x03,0x83,0x08,0x07,
212 0x03,0x50,0x00,0xC0,0x40,0x00,0x86,0x01,0x01,0xA6,
213 0x0D,0x02,0x03,0x11,0x01,0x05,0x37,0x00,0xAC,0x21,
214 0x00,
215 },
216 // TGB_NTSC392 // quartzsight
217 // This table has been modified to be used for Fusion Rev D
218 {
219 0x2A, // size of table = 42
220 0x06, 0x08, 0x04, 0x0a, 0xc0, 0x00, 0x18, 0x08, 0x03, 0x24,
221 0x08, 0x07, 0x02, 0x90, 0x02, 0x08, 0x10, 0x04, 0x0c, 0x10,
222 0x05, 0x2c, 0x11, 0x04, 0x55, 0x48, 0x00, 0x05, 0x50, 0x00,
223 0xbf, 0x0c, 0x02, 0x2f, 0x3d, 0x00, 0x2f, 0x3f, 0x00, 0xc3,
224 0x20, 0x00
225 }
226 };
227
228 /* minhdelayx1 first video pixel we can capture on a line and
229 hdelayx1 start of active video, both relative to rising edge of
230 /HRESET pulse (0H) in 1 / fCLKx1.
231 swidth width of active video and
232 totalwidth total line width, both in 1 / fCLKx1.
233 sqwidth total line width in square pixels.
234 vdelay start of active video in 2 * field lines relative to
235 trailing edge of /VRESET pulse (VDELAY register).
236 sheight height of active video in 2 * field lines.
237 videostart0 ITU-R frame line number of the line corresponding
238 to vdelay in the first field. */
239 #define CROPCAP(minhdelayx1, hdelayx1, swidth, totalwidth, sqwidth, \
240 vdelay, sheight, videostart0) \
241 .cropcap.bounds.left = minhdelayx1, \
242 /* * 2 because vertically we count field lines times two, */ \
243 /* e.g. 23 * 2 to 23 * 2 + 576 in PAL-BGHI defrect. */ \
244 .cropcap.bounds.top = (videostart0) * 2 - (vdelay) + MIN_VDELAY, \
245 /* 4 is a safety margin at the end of the line. */ \
246 .cropcap.bounds.width = (totalwidth) - (minhdelayx1) - 4, \
247 .cropcap.bounds.height = (sheight) + (vdelay) - MIN_VDELAY, \
248 .cropcap.defrect.left = hdelayx1, \
249 .cropcap.defrect.top = (videostart0) * 2, \
250 .cropcap.defrect.width = swidth, \
251 .cropcap.defrect.height = sheight, \
252 .cropcap.pixelaspect.numerator = totalwidth, \
253 .cropcap.pixelaspect.denominator = sqwidth,
254
255 const struct bttv_tvnorm bttv_tvnorms[] = {
256 /* PAL-BDGHI */
257 /* max. active video is actually 922, but 924 is divisible by 4 and 3! */
258 /* actually, max active PAL with HSCALE=0 is 948, NTSC is 768 - nil */
259 {
260 .v4l2_id = V4L2_STD_PAL,
261 .name = "PAL",
262 .Fsc = 35468950,
263 .swidth = 924,
264 .sheight = 576,
265 .totalwidth = 1135,
266 .adelay = 0x7f,
267 .bdelay = 0x72,
268 .iform = (BT848_IFORM_PAL_BDGHI|BT848_IFORM_XT1),
269 .scaledtwidth = 1135,
270 .hdelayx1 = 186,
271 .hactivex1 = 924,
272 .vdelay = 0x20,
273 .vbipack = 255, /* min (2048 / 4, 0x1ff) & 0xff */
274 .sram = 0,
275 /* ITU-R frame line number of the first VBI line
276 we can capture, of the first and second field.
277 The last line is determined by cropcap.bounds. */
278 .vbistart = { 7, 320 },
279 CROPCAP(/* minhdelayx1 */ 68,
280 /* hdelayx1 */ 186,
281 /* Should be (768 * 1135 + 944 / 2) / 944.
282 cropcap.defrect is used for image width
283 checks, so we keep the old value 924. */
284 /* swidth */ 924,
285 /* totalwidth */ 1135,
286 /* sqwidth */ 944,
287 /* vdelay */ 0x20,
288 /* sheight */ 576,
289 /* videostart0 */ 23)
290 /* bt878 (and bt848?) can capture another
291 line below active video. */
292 .cropcap.bounds.height = (576 + 2) + 0x20 - 2,
293 },{
294 .v4l2_id = V4L2_STD_NTSC_M | V4L2_STD_NTSC_M_KR,
295 .name = "NTSC",
296 .Fsc = 28636363,
297 .swidth = 768,
298 .sheight = 480,
299 .totalwidth = 910,
300 .adelay = 0x68,
301 .bdelay = 0x5d,
302 .iform = (BT848_IFORM_NTSC|BT848_IFORM_XT0),
303 .scaledtwidth = 910,
304 .hdelayx1 = 128,
305 .hactivex1 = 910,
306 .vdelay = 0x1a,
307 .vbipack = 144, /* min (1600 / 4, 0x1ff) & 0xff */
308 .sram = 1,
309 .vbistart = { 10, 273 },
310 CROPCAP(/* minhdelayx1 */ 68,
311 /* hdelayx1 */ 128,
312 /* Should be (640 * 910 + 780 / 2) / 780? */
313 /* swidth */ 768,
314 /* totalwidth */ 910,
315 /* sqwidth */ 780,
316 /* vdelay */ 0x1a,
317 /* sheight */ 480,
318 /* videostart0 */ 23)
319 },{
320 .v4l2_id = V4L2_STD_SECAM,
321 .name = "SECAM",
322 .Fsc = 35468950,
323 .swidth = 924,
324 .sheight = 576,
325 .totalwidth = 1135,
326 .adelay = 0x7f,
327 .bdelay = 0xb0,
328 .iform = (BT848_IFORM_SECAM|BT848_IFORM_XT1),
329 .scaledtwidth = 1135,
330 .hdelayx1 = 186,
331 .hactivex1 = 922,
332 .vdelay = 0x20,
333 .vbipack = 255,
334 .sram = 0, /* like PAL, correct? */
335 .vbistart = { 7, 320 },
336 CROPCAP(/* minhdelayx1 */ 68,
337 /* hdelayx1 */ 186,
338 /* swidth */ 924,
339 /* totalwidth */ 1135,
340 /* sqwidth */ 944,
341 /* vdelay */ 0x20,
342 /* sheight */ 576,
343 /* videostart0 */ 23)
344 },{
345 .v4l2_id = V4L2_STD_PAL_Nc,
346 .name = "PAL-Nc",
347 .Fsc = 28636363,
348 .swidth = 640,
349 .sheight = 576,
350 .totalwidth = 910,
351 .adelay = 0x68,
352 .bdelay = 0x5d,
353 .iform = (BT848_IFORM_PAL_NC|BT848_IFORM_XT0),
354 .scaledtwidth = 780,
355 .hdelayx1 = 130,
356 .hactivex1 = 734,
357 .vdelay = 0x1a,
358 .vbipack = 144,
359 .sram = -1,
360 .vbistart = { 7, 320 },
361 CROPCAP(/* minhdelayx1 */ 68,
362 /* hdelayx1 */ 130,
363 /* swidth */ (640 * 910 + 780 / 2) / 780,
364 /* totalwidth */ 910,
365 /* sqwidth */ 780,
366 /* vdelay */ 0x1a,
367 /* sheight */ 576,
368 /* videostart0 */ 23)
369 },{
370 .v4l2_id = V4L2_STD_PAL_M,
371 .name = "PAL-M",
372 .Fsc = 28636363,
373 .swidth = 640,
374 .sheight = 480,
375 .totalwidth = 910,
376 .adelay = 0x68,
377 .bdelay = 0x5d,
378 .iform = (BT848_IFORM_PAL_M|BT848_IFORM_XT0),
379 .scaledtwidth = 780,
380 .hdelayx1 = 135,
381 .hactivex1 = 754,
382 .vdelay = 0x1a,
383 .vbipack = 144,
384 .sram = -1,
385 .vbistart = { 10, 273 },
386 CROPCAP(/* minhdelayx1 */ 68,
387 /* hdelayx1 */ 135,
388 /* swidth */ (640 * 910 + 780 / 2) / 780,
389 /* totalwidth */ 910,
390 /* sqwidth */ 780,
391 /* vdelay */ 0x1a,
392 /* sheight */ 480,
393 /* videostart0 */ 23)
394 },{
395 .v4l2_id = V4L2_STD_PAL_N,
396 .name = "PAL-N",
397 .Fsc = 35468950,
398 .swidth = 768,
399 .sheight = 576,
400 .totalwidth = 1135,
401 .adelay = 0x7f,
402 .bdelay = 0x72,
403 .iform = (BT848_IFORM_PAL_N|BT848_IFORM_XT1),
404 .scaledtwidth = 944,
405 .hdelayx1 = 186,
406 .hactivex1 = 922,
407 .vdelay = 0x20,
408 .vbipack = 144,
409 .sram = -1,
410 .vbistart = { 7, 320 },
411 CROPCAP(/* minhdelayx1 */ 68,
412 /* hdelayx1 */ 186,
413 /* swidth */ (768 * 1135 + 944 / 2) / 944,
414 /* totalwidth */ 1135,
415 /* sqwidth */ 944,
416 /* vdelay */ 0x20,
417 /* sheight */ 576,
418 /* videostart0 */ 23)
419 },{
420 .v4l2_id = V4L2_STD_NTSC_M_JP,
421 .name = "NTSC-JP",
422 .Fsc = 28636363,
423 .swidth = 640,
424 .sheight = 480,
425 .totalwidth = 910,
426 .adelay = 0x68,
427 .bdelay = 0x5d,
428 .iform = (BT848_IFORM_NTSC_J|BT848_IFORM_XT0),
429 .scaledtwidth = 780,
430 .hdelayx1 = 135,
431 .hactivex1 = 754,
432 .vdelay = 0x16,
433 .vbipack = 144,
434 .sram = -1,
435 .vbistart = { 10, 273 },
436 CROPCAP(/* minhdelayx1 */ 68,
437 /* hdelayx1 */ 135,
438 /* swidth */ (640 * 910 + 780 / 2) / 780,
439 /* totalwidth */ 910,
440 /* sqwidth */ 780,
441 /* vdelay */ 0x16,
442 /* sheight */ 480,
443 /* videostart0 */ 23)
444 },{
445 /* that one hopefully works with the strange timing
446 * which video recorders produce when playing a NTSC
447 * tape on a PAL TV ... */
448 .v4l2_id = V4L2_STD_PAL_60,
449 .name = "PAL-60",
450 .Fsc = 35468950,
451 .swidth = 924,
452 .sheight = 480,
453 .totalwidth = 1135,
454 .adelay = 0x7f,
455 .bdelay = 0x72,
456 .iform = (BT848_IFORM_PAL_BDGHI|BT848_IFORM_XT1),
457 .scaledtwidth = 1135,
458 .hdelayx1 = 186,
459 .hactivex1 = 924,
460 .vdelay = 0x1a,
461 .vbipack = 255,
462 .vtotal = 524,
463 .sram = -1,
464 .vbistart = { 10, 273 },
465 CROPCAP(/* minhdelayx1 */ 68,
466 /* hdelayx1 */ 186,
467 /* swidth */ 924,
468 /* totalwidth */ 1135,
469 /* sqwidth */ 944,
470 /* vdelay */ 0x1a,
471 /* sheight */ 480,
472 /* videostart0 */ 23)
473 }
474 };
475 static const unsigned int BTTV_TVNORMS = ARRAY_SIZE(bttv_tvnorms);
476
477 /* ----------------------------------------------------------------------- */
478 /* bttv format list
479 packed pixel formats must come first */
480 static const struct bttv_format formats[] = {
481 {
482 .name = "8 bpp, gray",
483 .fourcc = V4L2_PIX_FMT_GREY,
484 .btformat = BT848_COLOR_FMT_Y8,
485 .depth = 8,
486 .flags = FORMAT_FLAGS_PACKED,
487 },{
488 .name = "8 bpp, dithered color",
489 .fourcc = V4L2_PIX_FMT_HI240,
490 .btformat = BT848_COLOR_FMT_RGB8,
491 .depth = 8,
492 .flags = FORMAT_FLAGS_PACKED | FORMAT_FLAGS_DITHER,
493 },{
494 .name = "15 bpp RGB, le",
495 .fourcc = V4L2_PIX_FMT_RGB555,
496 .btformat = BT848_COLOR_FMT_RGB15,
497 .depth = 16,
498 .flags = FORMAT_FLAGS_PACKED,
499 },{
500 .name = "15 bpp RGB, be",
501 .fourcc = V4L2_PIX_FMT_RGB555X,
502 .btformat = BT848_COLOR_FMT_RGB15,
503 .btswap = 0x03, /* byteswap */
504 .depth = 16,
505 .flags = FORMAT_FLAGS_PACKED,
506 },{
507 .name = "16 bpp RGB, le",
508 .fourcc = V4L2_PIX_FMT_RGB565,
509 .btformat = BT848_COLOR_FMT_RGB16,
510 .depth = 16,
511 .flags = FORMAT_FLAGS_PACKED,
512 },{
513 .name = "16 bpp RGB, be",
514 .fourcc = V4L2_PIX_FMT_RGB565X,
515 .btformat = BT848_COLOR_FMT_RGB16,
516 .btswap = 0x03, /* byteswap */
517 .depth = 16,
518 .flags = FORMAT_FLAGS_PACKED,
519 },{
520 .name = "24 bpp RGB, le",
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 .fourcc = V4L2_PIX_FMT_BGR32,
528 .btformat = BT848_COLOR_FMT_RGB32,
529 .depth = 32,
530 .flags = FORMAT_FLAGS_PACKED,
531 },{
532 .name = "32 bpp RGB, be",
533 .fourcc = V4L2_PIX_FMT_RGB32,
534 .btformat = BT848_COLOR_FMT_RGB32,
535 .btswap = 0x0f, /* byte+word swap */
536 .depth = 32,
537 .flags = FORMAT_FLAGS_PACKED,
538 },{
539 .name = "4:2:2, packed, YUYV",
540 .fourcc = V4L2_PIX_FMT_YUYV,
541 .btformat = BT848_COLOR_FMT_YUY2,
542 .depth = 16,
543 .flags = FORMAT_FLAGS_PACKED,
544 },{
545 .name = "4:2:2, packed, YUYV",
546 .fourcc = V4L2_PIX_FMT_YUYV,
547 .btformat = BT848_COLOR_FMT_YUY2,
548 .depth = 16,
549 .flags = FORMAT_FLAGS_PACKED,
550 },{
551 .name = "4:2:2, packed, UYVY",
552 .fourcc = V4L2_PIX_FMT_UYVY,
553 .btformat = BT848_COLOR_FMT_YUY2,
554 .btswap = 0x03, /* byteswap */
555 .depth = 16,
556 .flags = FORMAT_FLAGS_PACKED,
557 },{
558 .name = "4:2:2, planar, Y-Cb-Cr",
559 .fourcc = V4L2_PIX_FMT_YUV422P,
560 .btformat = BT848_COLOR_FMT_YCrCb422,
561 .depth = 16,
562 .flags = FORMAT_FLAGS_PLANAR,
563 .hshift = 1,
564 .vshift = 0,
565 },{
566 .name = "4:2:0, planar, Y-Cb-Cr",
567 .fourcc = V4L2_PIX_FMT_YUV420,
568 .btformat = BT848_COLOR_FMT_YCrCb422,
569 .depth = 12,
570 .flags = FORMAT_FLAGS_PLANAR,
571 .hshift = 1,
572 .vshift = 1,
573 },{
574 .name = "4:2:0, planar, Y-Cr-Cb",
575 .fourcc = V4L2_PIX_FMT_YVU420,
576 .btformat = BT848_COLOR_FMT_YCrCb422,
577 .depth = 12,
578 .flags = FORMAT_FLAGS_PLANAR | FORMAT_FLAGS_CrCb,
579 .hshift = 1,
580 .vshift = 1,
581 },{
582 .name = "4:1:1, planar, Y-Cb-Cr",
583 .fourcc = V4L2_PIX_FMT_YUV411P,
584 .btformat = BT848_COLOR_FMT_YCrCb411,
585 .depth = 12,
586 .flags = FORMAT_FLAGS_PLANAR,
587 .hshift = 2,
588 .vshift = 0,
589 },{
590 .name = "4:1:0, planar, Y-Cb-Cr",
591 .fourcc = V4L2_PIX_FMT_YUV410,
592 .btformat = BT848_COLOR_FMT_YCrCb411,
593 .depth = 9,
594 .flags = FORMAT_FLAGS_PLANAR,
595 .hshift = 2,
596 .vshift = 2,
597 },{
598 .name = "4:1:0, planar, Y-Cr-Cb",
599 .fourcc = V4L2_PIX_FMT_YVU410,
600 .btformat = BT848_COLOR_FMT_YCrCb411,
601 .depth = 9,
602 .flags = FORMAT_FLAGS_PLANAR | FORMAT_FLAGS_CrCb,
603 .hshift = 2,
604 .vshift = 2,
605 },{
606 .name = "raw scanlines",
607 .fourcc = -1,
608 .btformat = BT848_COLOR_FMT_RAW,
609 .depth = 8,
610 .flags = FORMAT_FLAGS_RAW,
611 }
612 };
613 static const unsigned int FORMATS = ARRAY_SIZE(formats);
614
615 /* ----------------------------------------------------------------------- */
616
617 #define V4L2_CID_PRIVATE_CHROMA_AGC (V4L2_CID_PRIVATE_BASE + 0)
618 #define V4L2_CID_PRIVATE_COMBFILTER (V4L2_CID_PRIVATE_BASE + 1)
619 #define V4L2_CID_PRIVATE_AUTOMUTE (V4L2_CID_PRIVATE_BASE + 2)
620 #define V4L2_CID_PRIVATE_LUMAFILTER (V4L2_CID_PRIVATE_BASE + 3)
621 #define V4L2_CID_PRIVATE_AGC_CRUSH (V4L2_CID_PRIVATE_BASE + 4)
622 #define V4L2_CID_PRIVATE_VCR_HACK (V4L2_CID_PRIVATE_BASE + 5)
623 #define V4L2_CID_PRIVATE_WHITECRUSH_UPPER (V4L2_CID_PRIVATE_BASE + 6)
624 #define V4L2_CID_PRIVATE_WHITECRUSH_LOWER (V4L2_CID_PRIVATE_BASE + 7)
625 #define V4L2_CID_PRIVATE_UV_RATIO (V4L2_CID_PRIVATE_BASE + 8)
626 #define V4L2_CID_PRIVATE_FULL_LUMA_RANGE (V4L2_CID_PRIVATE_BASE + 9)
627 #define V4L2_CID_PRIVATE_CORING (V4L2_CID_PRIVATE_BASE + 10)
628 #define V4L2_CID_PRIVATE_LASTP1 (V4L2_CID_PRIVATE_BASE + 11)
629
630 static const struct v4l2_queryctrl no_ctl = {
631 .name = "42",
632 .flags = V4L2_CTRL_FLAG_DISABLED,
633 };
634 static const struct v4l2_queryctrl bttv_ctls[] = {
635 /* --- video --- */
636 {
637 .id = V4L2_CID_BRIGHTNESS,
638 .name = "Brightness",
639 .minimum = 0,
640 .maximum = 65535,
641 .step = 256,
642 .default_value = 32768,
643 .type = V4L2_CTRL_TYPE_INTEGER,
644 },{
645 .id = V4L2_CID_CONTRAST,
646 .name = "Contrast",
647 .minimum = 0,
648 .maximum = 65535,
649 .step = 128,
650 .default_value = 32768,
651 .type = V4L2_CTRL_TYPE_INTEGER,
652 },{
653 .id = V4L2_CID_SATURATION,
654 .name = "Saturation",
655 .minimum = 0,
656 .maximum = 65535,
657 .step = 128,
658 .default_value = 32768,
659 .type = V4L2_CTRL_TYPE_INTEGER,
660 },{
661 .id = V4L2_CID_HUE,
662 .name = "Hue",
663 .minimum = 0,
664 .maximum = 65535,
665 .step = 256,
666 .default_value = 32768,
667 .type = V4L2_CTRL_TYPE_INTEGER,
668 },
669 /* --- audio --- */
670 {
671 .id = V4L2_CID_AUDIO_MUTE,
672 .name = "Mute",
673 .minimum = 0,
674 .maximum = 1,
675 .type = V4L2_CTRL_TYPE_BOOLEAN,
676 },{
677 .id = V4L2_CID_AUDIO_VOLUME,
678 .name = "Volume",
679 .minimum = 0,
680 .maximum = 65535,
681 .step = 65535/100,
682 .default_value = 65535,
683 .type = V4L2_CTRL_TYPE_INTEGER,
684 },{
685 .id = V4L2_CID_AUDIO_BALANCE,
686 .name = "Balance",
687 .minimum = 0,
688 .maximum = 65535,
689 .step = 65535/100,
690 .default_value = 32768,
691 .type = V4L2_CTRL_TYPE_INTEGER,
692 },{
693 .id = V4L2_CID_AUDIO_BASS,
694 .name = "Bass",
695 .minimum = 0,
696 .maximum = 65535,
697 .step = 65535/100,
698 .default_value = 32768,
699 .type = V4L2_CTRL_TYPE_INTEGER,
700 },{
701 .id = V4L2_CID_AUDIO_TREBLE,
702 .name = "Treble",
703 .minimum = 0,
704 .maximum = 65535,
705 .step = 65535/100,
706 .default_value = 32768,
707 .type = V4L2_CTRL_TYPE_INTEGER,
708 },
709 /* --- private --- */
710 {
711 .id = V4L2_CID_PRIVATE_CHROMA_AGC,
712 .name = "chroma agc",
713 .minimum = 0,
714 .maximum = 1,
715 .type = V4L2_CTRL_TYPE_BOOLEAN,
716 },{
717 .id = V4L2_CID_PRIVATE_COMBFILTER,
718 .name = "combfilter",
719 .minimum = 0,
720 .maximum = 1,
721 .type = V4L2_CTRL_TYPE_BOOLEAN,
722 },{
723 .id = V4L2_CID_PRIVATE_AUTOMUTE,
724 .name = "automute",
725 .minimum = 0,
726 .maximum = 1,
727 .type = V4L2_CTRL_TYPE_BOOLEAN,
728 },{
729 .id = V4L2_CID_PRIVATE_LUMAFILTER,
730 .name = "luma decimation filter",
731 .minimum = 0,
732 .maximum = 1,
733 .type = V4L2_CTRL_TYPE_BOOLEAN,
734 },{
735 .id = V4L2_CID_PRIVATE_AGC_CRUSH,
736 .name = "agc crush",
737 .minimum = 0,
738 .maximum = 1,
739 .type = V4L2_CTRL_TYPE_BOOLEAN,
740 },{
741 .id = V4L2_CID_PRIVATE_VCR_HACK,
742 .name = "vcr hack",
743 .minimum = 0,
744 .maximum = 1,
745 .type = V4L2_CTRL_TYPE_BOOLEAN,
746 },{
747 .id = V4L2_CID_PRIVATE_WHITECRUSH_UPPER,
748 .name = "whitecrush upper",
749 .minimum = 0,
750 .maximum = 255,
751 .step = 1,
752 .default_value = 0xCF,
753 .type = V4L2_CTRL_TYPE_INTEGER,
754 },{
755 .id = V4L2_CID_PRIVATE_WHITECRUSH_LOWER,
756 .name = "whitecrush lower",
757 .minimum = 0,
758 .maximum = 255,
759 .step = 1,
760 .default_value = 0x7F,
761 .type = V4L2_CTRL_TYPE_INTEGER,
762 },{
763 .id = V4L2_CID_PRIVATE_UV_RATIO,
764 .name = "uv ratio",
765 .minimum = 0,
766 .maximum = 100,
767 .step = 1,
768 .default_value = 50,
769 .type = V4L2_CTRL_TYPE_INTEGER,
770 },{
771 .id = V4L2_CID_PRIVATE_FULL_LUMA_RANGE,
772 .name = "full luma range",
773 .minimum = 0,
774 .maximum = 1,
775 .type = V4L2_CTRL_TYPE_BOOLEAN,
776 },{
777 .id = V4L2_CID_PRIVATE_CORING,
778 .name = "coring",
779 .minimum = 0,
780 .maximum = 3,
781 .step = 1,
782 .default_value = 0,
783 .type = V4L2_CTRL_TYPE_INTEGER,
784 }
785
786
787
788 };
789
790 static const struct v4l2_queryctrl *ctrl_by_id(int id)
791 {
792 int i;
793
794 for (i = 0; i < ARRAY_SIZE(bttv_ctls); i++)
795 if (bttv_ctls[i].id == id)
796 return bttv_ctls+i;
797
798 return NULL;
799 }
800
801 /* ----------------------------------------------------------------------- */
802 /* resource management */
803
804 /*
805 RESOURCE_ allocated by freed by
806
807 VIDEO_READ bttv_read 1) bttv_read 2)
808
809 VIDEO_STREAM VIDIOC_STREAMON VIDIOC_STREAMOFF
810 VIDIOC_QBUF 1) bttv_release
811 VIDIOCMCAPTURE 1)
812
813 OVERLAY VIDIOCCAPTURE on VIDIOCCAPTURE off
814 VIDIOC_OVERLAY on VIDIOC_OVERLAY off
815 3) bttv_release
816
817 VBI VIDIOC_STREAMON VIDIOC_STREAMOFF
818 VIDIOC_QBUF 1) bttv_release
819 bttv_read, bttv_poll 1) 4)
820
821 1) The resource must be allocated when we enter buffer prepare functions
822 and remain allocated while buffers are in the DMA queue.
823 2) This is a single frame read.
824 3) VIDIOC_S_FBUF and VIDIOC_S_FMT (OVERLAY) still work when
825 RESOURCE_OVERLAY is allocated.
826 4) This is a continuous read, implies VIDIOC_STREAMON.
827
828 Note this driver permits video input and standard changes regardless if
829 resources are allocated.
830 */
831
832 #define VBI_RESOURCES (RESOURCE_VBI)
833 #define VIDEO_RESOURCES (RESOURCE_VIDEO_READ | \
834 RESOURCE_VIDEO_STREAM | \
835 RESOURCE_OVERLAY)
836
837 static
838 int check_alloc_btres(struct bttv *btv, struct bttv_fh *fh, int bit)
839 {
840 int xbits; /* mutual exclusive resources */
841
842 if (fh->resources & bit)
843 /* have it already allocated */
844 return 1;
845
846 xbits = bit;
847 if (bit & (RESOURCE_VIDEO_READ | RESOURCE_VIDEO_STREAM))
848 xbits |= RESOURCE_VIDEO_READ | RESOURCE_VIDEO_STREAM;
849
850 /* is it free? */
851 mutex_lock(&btv->lock);
852 if (btv->resources & xbits) {
853 /* no, someone else uses it */
854 goto fail;
855 }
856
857 if ((bit & VIDEO_RESOURCES)
858 && 0 == (btv->resources & VIDEO_RESOURCES)) {
859 /* Do crop - use current, don't - use default parameters. */
860 __s32 top = btv->crop[!!fh->do_crop].rect.top;
861
862 if (btv->vbi_end > top)
863 goto fail;
864
865 /* We cannot capture the same line as video and VBI data.
866 Claim scan lines crop[].rect.top to bottom. */
867 btv->crop_start = top;
868 } else if (bit & VBI_RESOURCES) {
869 __s32 end = fh->vbi_fmt.end;
870
871 if (end > btv->crop_start)
872 goto fail;
873
874 /* Claim scan lines above fh->vbi_fmt.end. */
875 btv->vbi_end = end;
876 }
877
878 /* it's free, grab it */
879 fh->resources |= bit;
880 btv->resources |= bit;
881 mutex_unlock(&btv->lock);
882 return 1;
883
884 fail:
885 mutex_unlock(&btv->lock);
886 return 0;
887 }
888
889 static
890 int check_btres(struct bttv_fh *fh, int bit)
891 {
892 return (fh->resources & bit);
893 }
894
895 static
896 int locked_btres(struct bttv *btv, int bit)
897 {
898 return (btv->resources & bit);
899 }
900
901 /* Call with btv->lock down. */
902 static void
903 disclaim_vbi_lines(struct bttv *btv)
904 {
905 btv->vbi_end = 0;
906 }
907
908 /* Call with btv->lock down. */
909 static void
910 disclaim_video_lines(struct bttv *btv)
911 {
912 const struct bttv_tvnorm *tvnorm;
913 u8 crop;
914
915 tvnorm = &bttv_tvnorms[btv->tvnorm];
916 btv->crop_start = tvnorm->cropcap.bounds.top
917 + tvnorm->cropcap.bounds.height;
918
919 /* VBI capturing ends at VDELAY, start of video capturing, no
920 matter how many lines the VBI RISC program expects. When video
921 capturing is off, it shall no longer "preempt" VBI capturing,
922 so we set VDELAY to maximum. */
923 crop = btread(BT848_E_CROP) | 0xc0;
924 btwrite(crop, BT848_E_CROP);
925 btwrite(0xfe, BT848_E_VDELAY_LO);
926 btwrite(crop, BT848_O_CROP);
927 btwrite(0xfe, BT848_O_VDELAY_LO);
928 }
929
930 static
931 void free_btres(struct bttv *btv, struct bttv_fh *fh, int bits)
932 {
933 if ((fh->resources & bits) != bits) {
934 /* trying to free ressources not allocated by us ... */
935 printk("bttv: BUG! (btres)\n");
936 }
937 mutex_lock(&btv->lock);
938 fh->resources &= ~bits;
939 btv->resources &= ~bits;
940
941 bits = btv->resources;
942
943 if (0 == (bits & VIDEO_RESOURCES))
944 disclaim_video_lines(btv);
945
946 if (0 == (bits & VBI_RESOURCES))
947 disclaim_vbi_lines(btv);
948
949 mutex_unlock(&btv->lock);
950 }
951
952 /* ----------------------------------------------------------------------- */
953 /* If Bt848a or Bt849, use PLL for PAL/SECAM and crystal for NTSC */
954
955 /* Frequency = (F_input / PLL_X) * PLL_I.PLL_F/PLL_C
956 PLL_X = Reference pre-divider (0=1, 1=2)
957 PLL_C = Post divider (0=6, 1=4)
958 PLL_I = Integer input
959 PLL_F = Fractional input
960
961 F_input = 28.636363 MHz:
962 PAL (CLKx2 = 35.46895 MHz): PLL_X = 1, PLL_I = 0x0E, PLL_F = 0xDCF9, PLL_C = 0
963 */
964
965 static void set_pll_freq(struct bttv *btv, unsigned int fin, unsigned int fout)
966 {
967 unsigned char fl, fh, fi;
968
969 /* prevent overflows */
970 fin/=4;
971 fout/=4;
972
973 fout*=12;
974 fi=fout/fin;
975
976 fout=(fout%fin)*256;
977 fh=fout/fin;
978
979 fout=(fout%fin)*256;
980 fl=fout/fin;
981
982 btwrite(fl, BT848_PLL_F_LO);
983 btwrite(fh, BT848_PLL_F_HI);
984 btwrite(fi|BT848_PLL_X, BT848_PLL_XCI);
985 }
986
987 static void set_pll(struct bttv *btv)
988 {
989 int i;
990
991 if (!btv->pll.pll_crystal)
992 return;
993
994 if (btv->pll.pll_ofreq == btv->pll.pll_current) {
995 dprintk("bttv%d: PLL: no change required\n",btv->c.nr);
996 return;
997 }
998
999 if (btv->pll.pll_ifreq == btv->pll.pll_ofreq) {
1000 /* no PLL needed */
1001 if (btv->pll.pll_current == 0)
1002 return;
1003 bttv_printk(KERN_INFO "bttv%d: PLL can sleep, using XTAL (%d).\n",
1004 btv->c.nr,btv->pll.pll_ifreq);
1005 btwrite(0x00,BT848_TGCTRL);
1006 btwrite(0x00,BT848_PLL_XCI);
1007 btv->pll.pll_current = 0;
1008 return;
1009 }
1010
1011 bttv_printk(KERN_INFO "bttv%d: PLL: %d => %d ",btv->c.nr,
1012 btv->pll.pll_ifreq, btv->pll.pll_ofreq);
1013 set_pll_freq(btv, btv->pll.pll_ifreq, btv->pll.pll_ofreq);
1014
1015 for (i=0; i<10; i++) {
1016 /* Let other people run while the PLL stabilizes */
1017 bttv_printk(".");
1018 msleep(10);
1019
1020 if (btread(BT848_DSTATUS) & BT848_DSTATUS_PLOCK) {
1021 btwrite(0,BT848_DSTATUS);
1022 } else {
1023 btwrite(0x08,BT848_TGCTRL);
1024 btv->pll.pll_current = btv->pll.pll_ofreq;
1025 bttv_printk(" ok\n");
1026 return;
1027 }
1028 }
1029 btv->pll.pll_current = -1;
1030 bttv_printk("failed\n");
1031 return;
1032 }
1033
1034 /* used to switch between the bt848's analog/digital video capture modes */
1035 static void bt848A_set_timing(struct bttv *btv)
1036 {
1037 int i, len;
1038 int table_idx = bttv_tvnorms[btv->tvnorm].sram;
1039 int fsc = bttv_tvnorms[btv->tvnorm].Fsc;
1040
1041 if (UNSET == bttv_tvcards[btv->c.type].muxsel[btv->input]) {
1042 dprintk("bttv%d: load digital timing table (table_idx=%d)\n",
1043 btv->c.nr,table_idx);
1044
1045 /* timing change...reset timing generator address */
1046 btwrite(0x00, BT848_TGCTRL);
1047 btwrite(0x02, BT848_TGCTRL);
1048 btwrite(0x00, BT848_TGCTRL);
1049
1050 len=SRAM_Table[table_idx][0];
1051 for(i = 1; i <= len; i++)
1052 btwrite(SRAM_Table[table_idx][i],BT848_TGLB);
1053 btv->pll.pll_ofreq = 27000000;
1054
1055 set_pll(btv);
1056 btwrite(0x11, BT848_TGCTRL);
1057 btwrite(0x41, BT848_DVSIF);
1058 } else {
1059 btv->pll.pll_ofreq = fsc;
1060 set_pll(btv);
1061 btwrite(0x0, BT848_DVSIF);
1062 }
1063 }
1064
1065 /* ----------------------------------------------------------------------- */
1066
1067 static void bt848_bright(struct bttv *btv, int bright)
1068 {
1069 int value;
1070
1071 // printk("bttv: set bright: %d\n",bright); // DEBUG
1072 btv->bright = bright;
1073
1074 /* We want -128 to 127 we get 0-65535 */
1075 value = (bright >> 8) - 128;
1076 btwrite(value & 0xff, BT848_BRIGHT);
1077 }
1078
1079 static void bt848_hue(struct bttv *btv, int hue)
1080 {
1081 int value;
1082
1083 btv->hue = hue;
1084
1085 /* -128 to 127 */
1086 value = (hue >> 8) - 128;
1087 btwrite(value & 0xff, BT848_HUE);
1088 }
1089
1090 static void bt848_contrast(struct bttv *btv, int cont)
1091 {
1092 int value,hibit;
1093
1094 btv->contrast = cont;
1095
1096 /* 0-511 */
1097 value = (cont >> 7);
1098 hibit = (value >> 6) & 4;
1099 btwrite(value & 0xff, BT848_CONTRAST_LO);
1100 btaor(hibit, ~4, BT848_E_CONTROL);
1101 btaor(hibit, ~4, BT848_O_CONTROL);
1102 }
1103
1104 static void bt848_sat(struct bttv *btv, int color)
1105 {
1106 int val_u,val_v,hibits;
1107
1108 btv->saturation = color;
1109
1110 /* 0-511 for the color */
1111 val_u = ((color * btv->opt_uv_ratio) / 50) >> 7;
1112 val_v = (((color * (100 - btv->opt_uv_ratio) / 50) >>7)*180L)/254;
1113 hibits = (val_u >> 7) & 2;
1114 hibits |= (val_v >> 8) & 1;
1115 btwrite(val_u & 0xff, BT848_SAT_U_LO);
1116 btwrite(val_v & 0xff, BT848_SAT_V_LO);
1117 btaor(hibits, ~3, BT848_E_CONTROL);
1118 btaor(hibits, ~3, BT848_O_CONTROL);
1119 }
1120
1121 /* ----------------------------------------------------------------------- */
1122
1123 static int
1124 video_mux(struct bttv *btv, unsigned int input)
1125 {
1126 int mux,mask2;
1127
1128 if (input >= bttv_tvcards[btv->c.type].video_inputs)
1129 return -EINVAL;
1130
1131 /* needed by RemoteVideo MX */
1132 mask2 = bttv_tvcards[btv->c.type].gpiomask2;
1133 if (mask2)
1134 gpio_inout(mask2,mask2);
1135
1136 if (input == btv->svhs) {
1137 btor(BT848_CONTROL_COMP, BT848_E_CONTROL);
1138 btor(BT848_CONTROL_COMP, BT848_O_CONTROL);
1139 } else {
1140 btand(~BT848_CONTROL_COMP, BT848_E_CONTROL);
1141 btand(~BT848_CONTROL_COMP, BT848_O_CONTROL);
1142 }
1143 mux = bttv_tvcards[btv->c.type].muxsel[input] & 3;
1144 btaor(mux<<5, ~(3<<5), BT848_IFORM);
1145 dprintk(KERN_DEBUG "bttv%d: video mux: input=%d mux=%d\n",
1146 btv->c.nr,input,mux);
1147
1148 /* card specific hook */
1149 if(bttv_tvcards[btv->c.type].muxsel_hook)
1150 bttv_tvcards[btv->c.type].muxsel_hook (btv, input);
1151 return 0;
1152 }
1153
1154 static char *audio_modes[] = {
1155 "audio: tuner", "audio: radio", "audio: extern",
1156 "audio: intern", "audio: mute"
1157 };
1158
1159 static int
1160 audio_mux(struct bttv *btv, int input, int mute)
1161 {
1162 int gpio_val, signal;
1163 struct v4l2_control ctrl;
1164 struct i2c_client *c;
1165
1166 gpio_inout(bttv_tvcards[btv->c.type].gpiomask,
1167 bttv_tvcards[btv->c.type].gpiomask);
1168 signal = btread(BT848_DSTATUS) & BT848_DSTATUS_HLOC;
1169
1170 btv->mute = mute;
1171 btv->audio = input;
1172
1173 /* automute */
1174 mute = mute || (btv->opt_automute && !signal && !btv->radio_user);
1175
1176 if (mute)
1177 gpio_val = bttv_tvcards[btv->c.type].gpiomute;
1178 else
1179 gpio_val = bttv_tvcards[btv->c.type].gpiomux[input];
1180
1181 gpio_bits(bttv_tvcards[btv->c.type].gpiomask, gpio_val);
1182 if (bttv_gpio)
1183 bttv_gpio_tracking(btv, audio_modes[mute ? 4 : input]);
1184 if (in_interrupt())
1185 return 0;
1186
1187 ctrl.id = V4L2_CID_AUDIO_MUTE;
1188 ctrl.value = btv->mute;
1189 bttv_call_i2c_clients(btv, VIDIOC_S_CTRL, &ctrl);
1190 c = btv->i2c_msp34xx_client;
1191 if (c) {
1192 struct v4l2_routing route;
1193
1194 /* Note: the inputs tuner/radio/extern/intern are translated
1195 to msp routings. This assumes common behavior for all msp3400
1196 based TV cards. When this assumption fails, then the
1197 specific MSP routing must be added to the card table.
1198 For now this is sufficient. */
1199 switch (input) {
1200 case TVAUDIO_INPUT_RADIO:
1201 route.input = MSP_INPUT(MSP_IN_SCART2, MSP_IN_TUNER1,
1202 MSP_DSP_IN_SCART, MSP_DSP_IN_SCART);
1203 break;
1204 case TVAUDIO_INPUT_EXTERN:
1205 route.input = MSP_INPUT(MSP_IN_SCART1, MSP_IN_TUNER1,
1206 MSP_DSP_IN_SCART, MSP_DSP_IN_SCART);
1207 break;
1208 case TVAUDIO_INPUT_INTERN:
1209 /* Yes, this is the same input as for RADIO. I doubt
1210 if this is ever used. The only board with an INTERN
1211 input is the BTTV_BOARD_AVERMEDIA98. I wonder how
1212 that was tested. My guess is that the whole INTERN
1213 input does not work. */
1214 route.input = MSP_INPUT(MSP_IN_SCART2, MSP_IN_TUNER1,
1215 MSP_DSP_IN_SCART, MSP_DSP_IN_SCART);
1216 break;
1217 case TVAUDIO_INPUT_TUNER:
1218 default:
1219 /* This is the only card that uses TUNER2, and afaik,
1220 is the only difference between the VOODOOTV_FM
1221 and VOODOOTV_200 */
1222 if (btv->c.type == BTTV_BOARD_VOODOOTV_200)
1223 route.input = MSP_INPUT(MSP_IN_SCART1, MSP_IN_TUNER2, \
1224 MSP_DSP_IN_TUNER, MSP_DSP_IN_TUNER);
1225 else
1226 route.input = MSP_INPUT_DEFAULT;
1227 break;
1228 }
1229 route.output = MSP_OUTPUT_DEFAULT;
1230 c->driver->command(c, VIDIOC_INT_S_AUDIO_ROUTING, &route);
1231 }
1232 c = btv->i2c_tvaudio_client;
1233 if (c) {
1234 struct v4l2_routing route;
1235
1236 route.input = input;
1237 route.output = 0;
1238 c->driver->command(c, VIDIOC_INT_S_AUDIO_ROUTING, &route);
1239 }
1240 return 0;
1241 }
1242
1243 static inline int
1244 audio_mute(struct bttv *btv, int mute)
1245 {
1246 return audio_mux(btv, btv->audio, mute);
1247 }
1248
1249 static inline int
1250 audio_input(struct bttv *btv, int input)
1251 {
1252 return audio_mux(btv, input, btv->mute);
1253 }
1254
1255 static void
1256 bttv_crop_calc_limits(struct bttv_crop *c)
1257 {
1258 /* Scale factor min. 1:1, max. 16:1. Min. image size
1259 48 x 32. Scaled width must be a multiple of 4. */
1260
1261 if (1) {
1262 /* For bug compatibility with VIDIOCGCAP and image
1263 size checks in earlier driver versions. */
1264 c->min_scaled_width = 48;
1265 c->min_scaled_height = 32;
1266 } else {
1267 c->min_scaled_width =
1268 (max(48, c->rect.width >> 4) + 3) & ~3;
1269 c->min_scaled_height =
1270 max(32, c->rect.height >> 4);
1271 }
1272
1273 c->max_scaled_width = c->rect.width & ~3;
1274 c->max_scaled_height = c->rect.height;
1275 }
1276
1277 static void
1278 bttv_crop_reset(struct bttv_crop *c, int norm)
1279 {
1280 c->rect = bttv_tvnorms[norm].cropcap.defrect;
1281 bttv_crop_calc_limits(c);
1282 }
1283
1284 /* Call with btv->lock down. */
1285 static int
1286 set_tvnorm(struct bttv *btv, unsigned int norm)
1287 {
1288 const struct bttv_tvnorm *tvnorm;
1289 v4l2_std_id id;
1290
1291 if (norm < 0 || norm >= BTTV_TVNORMS)
1292 return -EINVAL;
1293
1294 tvnorm = &bttv_tvnorms[norm];
1295
1296 if (btv->tvnorm < 0 ||
1297 btv->tvnorm >= BTTV_TVNORMS ||
1298 0 != memcmp(&bttv_tvnorms[btv->tvnorm].cropcap,
1299 &tvnorm->cropcap,
1300 sizeof (tvnorm->cropcap))) {
1301 bttv_crop_reset(&btv->crop[0], norm);
1302 btv->crop[1] = btv->crop[0]; /* current = default */
1303
1304 if (0 == (btv->resources & VIDEO_RESOURCES)) {
1305 btv->crop_start = tvnorm->cropcap.bounds.top
1306 + tvnorm->cropcap.bounds.height;
1307 }
1308 }
1309
1310 btv->tvnorm = norm;
1311
1312 btwrite(tvnorm->adelay, BT848_ADELAY);
1313 btwrite(tvnorm->bdelay, BT848_BDELAY);
1314 btaor(tvnorm->iform,~(BT848_IFORM_NORM|BT848_IFORM_XTBOTH),
1315 BT848_IFORM);
1316 btwrite(tvnorm->vbipack, BT848_VBI_PACK_SIZE);
1317 btwrite(1, BT848_VBI_PACK_DEL);
1318 bt848A_set_timing(btv);
1319
1320 switch (btv->c.type) {
1321 case BTTV_BOARD_VOODOOTV_FM:
1322 case BTTV_BOARD_VOODOOTV_200:
1323 bttv_tda9880_setnorm(btv,norm);
1324 break;
1325 }
1326 id = tvnorm->v4l2_id;
1327 bttv_call_i2c_clients(btv, VIDIOC_S_STD, &id);
1328
1329 return 0;
1330 }
1331
1332 /* Call with btv->lock down. */
1333 static void
1334 set_input(struct bttv *btv, unsigned int input, unsigned int norm)
1335 {
1336 unsigned long flags;
1337
1338 btv->input = input;
1339 if (irq_iswitch) {
1340 spin_lock_irqsave(&btv->s_lock,flags);
1341 if (btv->curr.frame_irq) {
1342 /* active capture -> delayed input switch */
1343 btv->new_input = input;
1344 } else {
1345 video_mux(btv,input);
1346 }
1347 spin_unlock_irqrestore(&btv->s_lock,flags);
1348 } else {
1349 video_mux(btv,input);
1350 }
1351 audio_input(btv,(input == bttv_tvcards[btv->c.type].tuner ?
1352 TVAUDIO_INPUT_TUNER : TVAUDIO_INPUT_EXTERN));
1353 set_tvnorm(btv, norm);
1354 }
1355
1356 static void init_irqreg(struct bttv *btv)
1357 {
1358 /* clear status */
1359 btwrite(0xfffffUL, BT848_INT_STAT);
1360
1361 if (bttv_tvcards[btv->c.type].no_video) {
1362 /* i2c only */
1363 btwrite(BT848_INT_I2CDONE,
1364 BT848_INT_MASK);
1365 } else {
1366 /* full video */
1367 btwrite((btv->triton1) |
1368 (btv->gpioirq ? BT848_INT_GPINT : 0) |
1369 BT848_INT_SCERR |
1370 (fdsr ? BT848_INT_FDSR : 0) |
1371 BT848_INT_RISCI|BT848_INT_OCERR|BT848_INT_VPRES|
1372 BT848_INT_FMTCHG|BT848_INT_HLOCK|
1373 BT848_INT_I2CDONE,
1374 BT848_INT_MASK);
1375 }
1376 }
1377
1378 static void init_bt848(struct bttv *btv)
1379 {
1380 int val;
1381
1382 if (bttv_tvcards[btv->c.type].no_video) {
1383 /* very basic init only */
1384 init_irqreg(btv);
1385 return;
1386 }
1387
1388 btwrite(0x00, BT848_CAP_CTL);
1389 btwrite(BT848_COLOR_CTL_GAMMA, BT848_COLOR_CTL);
1390 btwrite(BT848_IFORM_XTAUTO | BT848_IFORM_AUTO, BT848_IFORM);
1391
1392 /* set planar and packed mode trigger points and */
1393 /* set rising edge of inverted GPINTR pin as irq trigger */
1394 btwrite(BT848_GPIO_DMA_CTL_PKTP_32|
1395 BT848_GPIO_DMA_CTL_PLTP1_16|
1396 BT848_GPIO_DMA_CTL_PLTP23_16|
1397 BT848_GPIO_DMA_CTL_GPINTC|
1398 BT848_GPIO_DMA_CTL_GPINTI,
1399 BT848_GPIO_DMA_CTL);
1400
1401 val = btv->opt_chroma_agc ? BT848_SCLOOP_CAGC : 0;
1402 btwrite(val, BT848_E_SCLOOP);
1403 btwrite(val, BT848_O_SCLOOP);
1404
1405 btwrite(0x20, BT848_E_VSCALE_HI);
1406 btwrite(0x20, BT848_O_VSCALE_HI);
1407 btwrite(BT848_ADC_RESERVED | (btv->opt_adc_crush ? BT848_ADC_CRUSH : 0),
1408 BT848_ADC);
1409
1410 btwrite(whitecrush_upper, BT848_WC_UP);
1411 btwrite(whitecrush_lower, BT848_WC_DOWN);
1412
1413 if (btv->opt_lumafilter) {
1414 btwrite(0, BT848_E_CONTROL);
1415 btwrite(0, BT848_O_CONTROL);
1416 } else {
1417 btwrite(BT848_CONTROL_LDEC, BT848_E_CONTROL);
1418 btwrite(BT848_CONTROL_LDEC, BT848_O_CONTROL);
1419 }
1420
1421 bt848_bright(btv, btv->bright);
1422 bt848_hue(btv, btv->hue);
1423 bt848_contrast(btv, btv->contrast);
1424 bt848_sat(btv, btv->saturation);
1425
1426 /* interrupt */
1427 init_irqreg(btv);
1428 }
1429
1430 static void bttv_reinit_bt848(struct bttv *btv)
1431 {
1432 unsigned long flags;
1433
1434 if (bttv_verbose)
1435 printk(KERN_INFO "bttv%d: reset, reinitialize\n",btv->c.nr);
1436 spin_lock_irqsave(&btv->s_lock,flags);
1437 btv->errors=0;
1438 bttv_set_dma(btv,0);
1439 spin_unlock_irqrestore(&btv->s_lock,flags);
1440
1441 init_bt848(btv);
1442 btv->pll.pll_current = -1;
1443 set_input(btv, btv->input, btv->tvnorm);
1444 }
1445
1446 static int bttv_g_ctrl(struct file *file, void *priv,
1447 struct v4l2_control *c)
1448 {
1449 struct bttv_fh *fh = priv;
1450 struct bttv *btv = fh->btv;
1451
1452 switch (c->id) {
1453 case V4L2_CID_BRIGHTNESS:
1454 c->value = btv->bright;
1455 break;
1456 case V4L2_CID_HUE:
1457 c->value = btv->hue;
1458 break;
1459 case V4L2_CID_CONTRAST:
1460 c->value = btv->contrast;
1461 break;
1462 case V4L2_CID_SATURATION:
1463 c->value = btv->saturation;
1464 break;
1465
1466 case V4L2_CID_AUDIO_MUTE:
1467 case V4L2_CID_AUDIO_VOLUME:
1468 case V4L2_CID_AUDIO_BALANCE:
1469 case V4L2_CID_AUDIO_BASS:
1470 case V4L2_CID_AUDIO_TREBLE:
1471 bttv_call_i2c_clients(btv, VIDIOC_G_CTRL, c);
1472 break;
1473
1474 case V4L2_CID_PRIVATE_CHROMA_AGC:
1475 c->value = btv->opt_chroma_agc;
1476 break;
1477 case V4L2_CID_PRIVATE_COMBFILTER:
1478 c->value = btv->opt_combfilter;
1479 break;
1480 case V4L2_CID_PRIVATE_LUMAFILTER:
1481 c->value = btv->opt_lumafilter;
1482 break;
1483 case V4L2_CID_PRIVATE_AUTOMUTE:
1484 c->value = btv->opt_automute;
1485 break;
1486 case V4L2_CID_PRIVATE_AGC_CRUSH:
1487 c->value = btv->opt_adc_crush;
1488 break;
1489 case V4L2_CID_PRIVATE_VCR_HACK:
1490 c->value = btv->opt_vcr_hack;
1491 break;
1492 case V4L2_CID_PRIVATE_WHITECRUSH_UPPER:
1493 c->value = btv->opt_whitecrush_upper;
1494 break;
1495 case V4L2_CID_PRIVATE_WHITECRUSH_LOWER:
1496 c->value = btv->opt_whitecrush_lower;
1497 break;
1498 case V4L2_CID_PRIVATE_UV_RATIO:
1499 c->value = btv->opt_uv_ratio;
1500 break;
1501 case V4L2_CID_PRIVATE_FULL_LUMA_RANGE:
1502 c->value = btv->opt_full_luma_range;
1503 break;
1504 case V4L2_CID_PRIVATE_CORING:
1505 c->value = btv->opt_coring;
1506 break;
1507 default:
1508 return -EINVAL;
1509 }
1510 return 0;
1511 }
1512
1513 static int bttv_s_ctrl(struct file *file, void *f,
1514 struct v4l2_control *c)
1515 {
1516 int err;
1517 int val;
1518 struct bttv_fh *fh = f;
1519 struct bttv *btv = fh->btv;
1520
1521 err = v4l2_prio_check(&btv->prio, &fh->prio);
1522 if (0 != err)
1523 return err;
1524
1525 switch (c->id) {
1526 case V4L2_CID_BRIGHTNESS:
1527 bt848_bright(btv, c->value);
1528 break;
1529 case V4L2_CID_HUE:
1530 bt848_hue(btv, c->value);
1531 break;
1532 case V4L2_CID_CONTRAST:
1533 bt848_contrast(btv, c->value);
1534 break;
1535 case V4L2_CID_SATURATION:
1536 bt848_sat(btv, c->value);
1537 break;
1538 case V4L2_CID_AUDIO_MUTE:
1539 audio_mute(btv, c->value);
1540 /* fall through */
1541 case V4L2_CID_AUDIO_VOLUME:
1542 if (btv->volume_gpio)
1543 btv->volume_gpio(btv, c->value);
1544
1545 bttv_call_i2c_clients(btv, VIDIOC_S_CTRL, c);
1546 break;
1547 case V4L2_CID_AUDIO_BALANCE:
1548 case V4L2_CID_AUDIO_BASS:
1549 case V4L2_CID_AUDIO_TREBLE:
1550 bttv_call_i2c_clients(btv, VIDIOC_S_CTRL, c);
1551 break;
1552
1553 case V4L2_CID_PRIVATE_CHROMA_AGC:
1554 btv->opt_chroma_agc = c->value;
1555 val = btv->opt_chroma_agc ? BT848_SCLOOP_CAGC : 0;
1556 btwrite(val, BT848_E_SCLOOP);
1557 btwrite(val, BT848_O_SCLOOP);
1558 break;
1559 case V4L2_CID_PRIVATE_COMBFILTER:
1560 btv->opt_combfilter = c->value;
1561 break;
1562 case V4L2_CID_PRIVATE_LUMAFILTER:
1563 btv->opt_lumafilter = c->value;
1564 if (btv->opt_lumafilter) {
1565 btand(~BT848_CONTROL_LDEC, BT848_E_CONTROL);
1566 btand(~BT848_CONTROL_LDEC, BT848_O_CONTROL);
1567 } else {
1568 btor(BT848_CONTROL_LDEC, BT848_E_CONTROL);
1569 btor(BT848_CONTROL_LDEC, BT848_O_CONTROL);
1570 }
1571 break;
1572 case V4L2_CID_PRIVATE_AUTOMUTE:
1573 btv->opt_automute = c->value;
1574 break;
1575 case V4L2_CID_PRIVATE_AGC_CRUSH:
1576 btv->opt_adc_crush = c->value;
1577 btwrite(BT848_ADC_RESERVED |
1578 (btv->opt_adc_crush ? BT848_ADC_CRUSH : 0),
1579 BT848_ADC);
1580 break;
1581 case V4L2_CID_PRIVATE_VCR_HACK:
1582 btv->opt_vcr_hack = c->value;
1583 break;
1584 case V4L2_CID_PRIVATE_WHITECRUSH_UPPER:
1585 btv->opt_whitecrush_upper = c->value;
1586 btwrite(c->value, BT848_WC_UP);
1587 break;
1588 case V4L2_CID_PRIVATE_WHITECRUSH_LOWER:
1589 btv->opt_whitecrush_lower = c->value;
1590 btwrite(c->value, BT848_WC_DOWN);
1591 break;
1592 case V4L2_CID_PRIVATE_UV_RATIO:
1593 btv->opt_uv_ratio = c->value;
1594 bt848_sat(btv, btv->saturation);
1595 break;
1596 case V4L2_CID_PRIVATE_FULL_LUMA_RANGE:
1597 btv->opt_full_luma_range = c->value;
1598 btaor((c->value<<7), ~BT848_OFORM_RANGE, BT848_OFORM);
1599 break;
1600 case V4L2_CID_PRIVATE_CORING:
1601 btv->opt_coring = c->value;
1602 btaor((c->value<<5), ~BT848_OFORM_CORE32, BT848_OFORM);
1603 break;
1604 default:
1605 return -EINVAL;
1606 }
1607 return 0;
1608 }
1609
1610 /* ----------------------------------------------------------------------- */
1611
1612 void bttv_gpio_tracking(struct bttv *btv, char *comment)
1613 {
1614 unsigned int outbits, data;
1615 outbits = btread(BT848_GPIO_OUT_EN);
1616 data = btread(BT848_GPIO_DATA);
1617 printk(KERN_DEBUG "bttv%d: gpio: en=%08x, out=%08x in=%08x [%s]\n",
1618 btv->c.nr,outbits,data & outbits, data & ~outbits, comment);
1619 }
1620
1621 static void bttv_field_count(struct bttv *btv)
1622 {
1623 int need_count = 0;
1624
1625 if (btv->users)
1626 need_count++;
1627
1628 if (need_count) {
1629 /* start field counter */
1630 btor(BT848_INT_VSYNC,BT848_INT_MASK);
1631 } else {
1632 /* stop field counter */
1633 btand(~BT848_INT_VSYNC,BT848_INT_MASK);
1634 btv->field_count = 0;
1635 }
1636 }
1637
1638 static const struct bttv_format*
1639 format_by_fourcc(int fourcc)
1640 {
1641 unsigned int i;
1642
1643 for (i = 0; i < FORMATS; i++) {
1644 if (-1 == formats[i].fourcc)
1645 continue;
1646 if (formats[i].fourcc == fourcc)
1647 return formats+i;
1648 }
1649 return NULL;
1650 }
1651
1652 /* ----------------------------------------------------------------------- */
1653 /* misc helpers */
1654
1655 static int
1656 bttv_switch_overlay(struct bttv *btv, struct bttv_fh *fh,
1657 struct bttv_buffer *new)
1658 {
1659 struct bttv_buffer *old;
1660 unsigned long flags;
1661 int retval = 0;
1662
1663 dprintk("switch_overlay: enter [new=%p]\n",new);
1664 if (new)
1665 new->vb.state = VIDEOBUF_DONE;
1666 spin_lock_irqsave(&btv->s_lock,flags);
1667 old = btv->screen;
1668 btv->screen = new;
1669 btv->loop_irq |= 1;
1670 bttv_set_dma(btv, 0x03);
1671 spin_unlock_irqrestore(&btv->s_lock,flags);
1672 if (NULL != old) {
1673 dprintk("switch_overlay: old=%p state is %d\n",old,old->vb.state);
1674 bttv_dma_free(&fh->cap,btv, old);
1675 kfree(old);
1676 }
1677 if (NULL == new)
1678 free_btres(btv,fh,RESOURCE_OVERLAY);
1679 dprintk("switch_overlay: done\n");
1680 return retval;
1681 }
1682
1683 /* ----------------------------------------------------------------------- */
1684 /* video4linux (1) interface */
1685
1686 static int bttv_prepare_buffer(struct videobuf_queue *q,struct bttv *btv,
1687 struct bttv_buffer *buf,
1688 const struct bttv_format *fmt,
1689 unsigned int width, unsigned int height,
1690 enum v4l2_field field)
1691 {
1692 struct bttv_fh *fh = q->priv_data;
1693 int redo_dma_risc = 0;
1694 struct bttv_crop c;
1695 int norm;
1696 int rc;
1697
1698 /* check settings */
1699 if (NULL == fmt)
1700 return -EINVAL;
1701 if (fmt->btformat == BT848_COLOR_FMT_RAW) {
1702 width = RAW_BPL;
1703 height = RAW_LINES*2;
1704 if (width*height > buf->vb.bsize)
1705 return -EINVAL;
1706 buf->vb.size = buf->vb.bsize;
1707
1708 /* Make sure tvnorm and vbi_end remain consistent
1709 until we're done. */
1710 mutex_lock(&btv->lock);
1711
1712 norm = btv->tvnorm;
1713
1714 /* In this mode capturing always starts at defrect.top
1715 (default VDELAY), ignoring cropping parameters. */
1716 if (btv->vbi_end > bttv_tvnorms[norm].cropcap.defrect.top) {
1717 mutex_unlock(&btv->lock);
1718 return -EINVAL;
1719 }
1720
1721 mutex_unlock(&btv->lock);
1722
1723 c.rect = bttv_tvnorms[norm].cropcap.defrect;
1724 } else {
1725 mutex_lock(&btv->lock);
1726
1727 norm = btv->tvnorm;
1728 c = btv->crop[!!fh->do_crop];
1729
1730 mutex_unlock(&btv->lock);
1731
1732 if (width < c.min_scaled_width ||
1733 width > c.max_scaled_width ||
1734 height < c.min_scaled_height)
1735 return -EINVAL;
1736
1737 switch (field) {
1738 case V4L2_FIELD_TOP:
1739 case V4L2_FIELD_BOTTOM:
1740 case V4L2_FIELD_ALTERNATE:
1741 /* btv->crop counts frame lines. Max. scale
1742 factor is 16:1 for frames, 8:1 for fields. */
1743 if (height * 2 > c.max_scaled_height)
1744 return -EINVAL;
1745 break;
1746
1747 default:
1748 if (height > c.max_scaled_height)
1749 return -EINVAL;
1750 break;
1751 }
1752
1753 buf->vb.size = (width * height * fmt->depth) >> 3;
1754 if (0 != buf->vb.baddr && buf->vb.bsize < buf->vb.size)
1755 return -EINVAL;
1756 }
1757
1758 /* alloc + fill struct bttv_buffer (if changed) */
1759 if (buf->vb.width != width || buf->vb.height != height ||
1760 buf->vb.field != field ||
1761 buf->tvnorm != norm || buf->fmt != fmt ||
1762 buf->crop.top != c.rect.top ||
1763 buf->crop.left != c.rect.left ||
1764 buf->crop.width != c.rect.width ||
1765 buf->crop.height != c.rect.height) {
1766 buf->vb.width = width;
1767 buf->vb.height = height;
1768 buf->vb.field = field;
1769 buf->tvnorm = norm;
1770 buf->fmt = fmt;
1771 buf->crop = c.rect;
1772 redo_dma_risc = 1;
1773 }
1774
1775 /* alloc risc memory */
1776 if (VIDEOBUF_NEEDS_INIT == buf->vb.state) {
1777 redo_dma_risc = 1;
1778 if (0 != (rc = videobuf_iolock(q,&buf->vb,&btv->fbuf)))
1779 goto fail;
1780 }
1781
1782 if (redo_dma_risc)
1783 if (0 != (rc = bttv_buffer_risc(btv,buf)))
1784 goto fail;
1785
1786 buf->vb.state = VIDEOBUF_PREPARED;
1787 return 0;
1788
1789 fail:
1790 bttv_dma_free(q,btv,buf);
1791 return rc;
1792 }
1793
1794 static int
1795 buffer_setup(struct videobuf_queue *q, unsigned int *count, unsigned int *size)
1796 {
1797 struct bttv_fh *fh = q->priv_data;
1798
1799 *size = fh->fmt->depth*fh->width*fh->height >> 3;
1800 if (0 == *count)
1801 *count = gbuffers;
1802 while (*size * *count > gbuffers * gbufsize)
1803 (*count)--;
1804 return 0;
1805 }
1806
1807 static int
1808 buffer_prepare(struct videobuf_queue *q, struct videobuf_buffer *vb,
1809 enum v4l2_field field)
1810 {
1811 struct bttv_buffer *buf = container_of(vb,struct bttv_buffer,vb);
1812 struct bttv_fh *fh = q->priv_data;
1813
1814 return bttv_prepare_buffer(q,fh->btv, buf, fh->fmt,
1815 fh->width, fh->height, field);
1816 }
1817
1818 static void
1819 buffer_queue(struct videobuf_queue *q, struct videobuf_buffer *vb)
1820 {
1821 struct bttv_buffer *buf = container_of(vb,struct bttv_buffer,vb);
1822 struct bttv_fh *fh = q->priv_data;
1823 struct bttv *btv = fh->btv;
1824
1825 buf->vb.state = VIDEOBUF_QUEUED;
1826 list_add_tail(&buf->vb.queue,&btv->capture);
1827 if (!btv->curr.frame_irq) {
1828 btv->loop_irq |= 1;
1829 bttv_set_dma(btv, 0x03);
1830 }
1831 }
1832
1833 static void buffer_release(struct videobuf_queue *q, struct videobuf_buffer *vb)
1834 {
1835 struct bttv_buffer *buf = container_of(vb,struct bttv_buffer,vb);
1836 struct bttv_fh *fh = q->priv_data;
1837
1838 bttv_dma_free(q,fh->btv,buf);
1839 }
1840
1841 static struct videobuf_queue_ops bttv_video_qops = {
1842 .buf_setup = buffer_setup,
1843 .buf_prepare = buffer_prepare,
1844 .buf_queue = buffer_queue,
1845 .buf_release = buffer_release,
1846 };
1847
1848 static int bttv_s_std(struct file *file, void *priv, v4l2_std_id *id)
1849 {
1850 struct bttv_fh *fh = priv;
1851 struct bttv *btv = fh->btv;
1852 unsigned int i;
1853 int err;
1854
1855 err = v4l2_prio_check(&btv->prio, &fh->prio);
1856 if (0 != err)
1857 return err;
1858
1859 for (i = 0; i < BTTV_TVNORMS; i++)
1860 if (*id & bttv_tvnorms[i].v4l2_id)
1861 break;
1862 if (i == BTTV_TVNORMS)
1863 return -EINVAL;
1864
1865 mutex_lock(&btv->lock);
1866 set_tvnorm(btv, i);
1867 mutex_unlock(&btv->lock);
1868
1869 return 0;
1870 }
1871
1872 static int bttv_querystd(struct file *file, void *f, v4l2_std_id *id)
1873 {
1874 struct bttv_fh *fh = f;
1875 struct bttv *btv = fh->btv;
1876
1877 if (btread(BT848_DSTATUS) & BT848_DSTATUS_NUML)
1878 *id = V4L2_STD_625_50;
1879 else
1880 *id = V4L2_STD_525_60;
1881 return 0;
1882 }
1883
1884 static int bttv_enum_input(struct file *file, void *priv,
1885 struct v4l2_input *i)
1886 {
1887 struct bttv_fh *fh = priv;
1888 struct bttv *btv = fh->btv;
1889 unsigned int n;
1890
1891 n = i->index;
1892
1893 if (n >= bttv_tvcards[btv->c.type].video_inputs)
1894 return -EINVAL;
1895
1896 memset(i, 0, sizeof(*i));
1897
1898 i->index = n;
1899 i->type = V4L2_INPUT_TYPE_CAMERA;
1900 i->audioset = 1;
1901
1902 if (i->index == bttv_tvcards[btv->c.type].tuner) {
1903 sprintf(i->name, "Television");
1904 i->type = V4L2_INPUT_TYPE_TUNER;
1905 i->tuner = 0;
1906 } else if (i->index == btv->svhs) {
1907 sprintf(i->name, "S-Video");
1908 } else {
1909 sprintf(i->name, "Composite%d", i->index);
1910 }
1911
1912 if (i->index == btv->input) {
1913 __u32 dstatus = btread(BT848_DSTATUS);
1914 if (0 == (dstatus & BT848_DSTATUS_PRES))
1915 i->status |= V4L2_IN_ST_NO_SIGNAL;
1916 if (0 == (dstatus & BT848_DSTATUS_HLOC))
1917 i->status |= V4L2_IN_ST_NO_H_LOCK;
1918 }
1919
1920 for (n = 0; n < BTTV_TVNORMS; n++)
1921 i->std |= bttv_tvnorms[n].v4l2_id;
1922
1923 return 0;
1924 }
1925
1926 static int bttv_g_input(struct file *file, void *priv, unsigned int *i)
1927 {
1928 struct bttv_fh *fh = priv;
1929 struct bttv *btv = fh->btv;
1930
1931 *i = btv->input;
1932 return 0;
1933 }
1934
1935 static int bttv_s_input(struct file *file, void *priv, unsigned int i)
1936 {
1937 struct bttv_fh *fh = priv;
1938 struct bttv *btv = fh->btv;
1939
1940 int err;
1941
1942 err = v4l2_prio_check(&btv->prio, &fh->prio);
1943 if (0 != err)
1944 return err;
1945
1946 if (i > bttv_tvcards[btv->c.type].video_inputs)
1947 return -EINVAL;
1948
1949 mutex_lock(&btv->lock);
1950 set_input(btv, i, btv->tvnorm);
1951 mutex_unlock(&btv->lock);
1952 return 0;
1953 }
1954
1955 static int bttv_s_tuner(struct file *file, void *priv,
1956 struct v4l2_tuner *t)
1957 {
1958 struct bttv_fh *fh = priv;
1959 struct bttv *btv = fh->btv;
1960 int err;
1961
1962 err = v4l2_prio_check(&btv->prio, &fh->prio);
1963 if (0 != err)
1964 return err;
1965
1966 if (UNSET == bttv_tvcards[btv->c.type].tuner)
1967 return -EINVAL;
1968
1969 if (0 != t->index)
1970 return -EINVAL;
1971
1972 mutex_lock(&btv->lock);
1973 bttv_call_i2c_clients(btv, VIDIOC_S_TUNER, t);
1974
1975 if (btv->audio_mode_gpio)
1976 btv->audio_mode_gpio(btv, t, 1);
1977
1978 mutex_unlock(&btv->lock);
1979
1980 return 0;
1981 }
1982
1983 static int bttv_g_frequency(struct file *file, void *priv,
1984 struct v4l2_frequency *f)
1985 {
1986 struct bttv_fh *fh = priv;
1987 struct bttv *btv = fh->btv;
1988 int err;
1989
1990 err = v4l2_prio_check(&btv->prio, &fh->prio);
1991 if (0 != err)
1992 return err;
1993
1994 f->type = btv->radio_user ? V4L2_TUNER_RADIO : V4L2_TUNER_ANALOG_TV;
1995 f->frequency = btv->freq;
1996
1997 return 0;
1998 }
1999
2000 static int bttv_s_frequency(struct file *file, void *priv,
2001 struct v4l2_frequency *f)
2002 {
2003 struct bttv_fh *fh = priv;
2004 struct bttv *btv = fh->btv;
2005 int err;
2006
2007 err = v4l2_prio_check(&btv->prio, &fh->prio);
2008 if (0 != err)
2009 return err;
2010
2011 if (unlikely(f->tuner != 0))
2012 return -EINVAL;
2013 if (unlikely(f->type != (btv->radio_user
2014 ? V4L2_TUNER_RADIO : V4L2_TUNER_ANALOG_TV)))
2015 return -EINVAL;
2016 mutex_lock(&btv->lock);
2017 btv->freq = f->frequency;
2018 bttv_call_i2c_clients(btv, VIDIOC_S_FREQUENCY, f);
2019 if (btv->has_matchbox && btv->radio_user)
2020 tea5757_set_freq(btv, btv->freq);
2021 mutex_unlock(&btv->lock);
2022 return 0;
2023 }
2024
2025 static int bttv_log_status(struct file *file, void *f)
2026 {
2027 struct bttv_fh *fh = f;
2028 struct bttv *btv = fh->btv;
2029
2030 printk(KERN_INFO "bttv%d: ======== START STATUS CARD #%d ========\n",
2031 btv->c.nr, btv->c.nr);
2032 bttv_call_i2c_clients(btv, VIDIOC_LOG_STATUS, NULL);
2033 printk(KERN_INFO "bttv%d: ======== END STATUS CARD #%d ========\n",
2034 btv->c.nr, btv->c.nr);
2035 return 0;
2036 }
2037
2038 #ifdef CONFIG_VIDEO_ADV_DEBUG
2039 static int bttv_g_register(struct file *file, void *f,
2040 struct v4l2_register *reg)
2041 {
2042 struct bttv_fh *fh = f;
2043 struct bttv *btv = fh->btv;
2044
2045 if (!capable(CAP_SYS_ADMIN))
2046 return -EPERM;
2047
2048 if (!v4l2_chip_match_host(reg->match_type, reg->match_chip))
2049 return -EINVAL;
2050
2051 /* bt848 has a 12-bit register space */
2052 reg->reg &= 0xfff;
2053 reg->val = btread(reg->reg);
2054
2055 return 0;
2056 }
2057
2058 static int bttv_s_register(struct file *file, void *f,
2059 struct v4l2_register *reg)
2060 {
2061 struct bttv_fh *fh = f;
2062 struct bttv *btv = fh->btv;
2063
2064 if (!capable(CAP_SYS_ADMIN))
2065 return -EPERM;
2066
2067 if (!v4l2_chip_match_host(reg->match_type, reg->match_chip))
2068 return -EINVAL;
2069
2070 /* bt848 has a 12-bit register space */
2071 reg->reg &= 0xfff;
2072 btwrite(reg->val, reg->reg);
2073
2074 return 0;
2075 }
2076 #endif
2077
2078 /* Given cropping boundaries b and the scaled width and height of a
2079 single field or frame, which must not exceed hardware limits, this
2080 function adjusts the cropping parameters c. */
2081 static void
2082 bttv_crop_adjust (struct bttv_crop * c,
2083 const struct v4l2_rect * b,
2084 __s32 width,
2085 __s32 height,
2086 enum v4l2_field field)
2087 {
2088 __s32 frame_height = height << !V4L2_FIELD_HAS_BOTH(field);
2089 __s32 max_left;
2090 __s32 max_top;
2091
2092 if (width < c->min_scaled_width) {
2093 /* Max. hor. scale factor 16:1. */
2094 c->rect.width = width * 16;
2095 } else if (width > c->max_scaled_width) {
2096 /* Min. hor. scale factor 1:1. */
2097 c->rect.width = width;
2098
2099 max_left = b->left + b->width - width;
2100 max_left = min(max_left, (__s32) MAX_HDELAY);
2101 if (c->rect.left > max_left)
2102 c->rect.left = max_left;
2103 }
2104
2105 if (height < c->min_scaled_height) {
2106 /* Max. vert. scale factor 16:1, single fields 8:1. */
2107 c->rect.height = height * 16;
2108 } else if (frame_height > c->max_scaled_height) {
2109 /* Min. vert. scale factor 1:1.
2110 Top and height count field lines times two. */
2111 c->rect.height = (frame_height + 1) & ~1;
2112
2113 max_top = b->top + b->height - c->rect.height;
2114 if (c->rect.top > max_top)
2115 c->rect.top = max_top;
2116 }
2117
2118 bttv_crop_calc_limits(c);
2119 }
2120
2121 /* Returns an error if scaling to a frame or single field with the given
2122 width and height is not possible with the current cropping parameters
2123 and width aligned according to width_mask. If adjust_size is TRUE the
2124 function may adjust the width and/or height instead, rounding width
2125 to (width + width_bias) & width_mask. If adjust_crop is TRUE it may
2126 also adjust the current cropping parameters to get closer to the
2127 desired image size. */
2128 static int
2129 limit_scaled_size (struct bttv_fh * fh,
2130 __s32 * width,
2131 __s32 * height,
2132 enum v4l2_field field,
2133 unsigned int width_mask,
2134 unsigned int width_bias,
2135 int adjust_size,
2136 int adjust_crop)
2137 {
2138 struct bttv *btv = fh->btv;
2139 const struct v4l2_rect *b;
2140 struct bttv_crop *c;
2141 __s32 min_width;
2142 __s32 min_height;
2143 __s32 max_width;
2144 __s32 max_height;
2145 int rc;
2146
2147 BUG_ON((int) width_mask >= 0 ||
2148 width_bias >= (unsigned int) -width_mask);
2149
2150 /* Make sure tvnorm, vbi_end and the current cropping parameters
2151 remain consistent until we're done. */
2152 mutex_lock(&btv->lock);
2153
2154 b = &bttv_tvnorms[btv->tvnorm].cropcap.bounds;
2155
2156 /* Do crop - use current, don't - use default parameters. */
2157 c = &btv->crop[!!fh->do_crop];
2158
2159 if (fh->do_crop
2160 && adjust_size
2161 && adjust_crop
2162 && !locked_btres(btv, VIDEO_RESOURCES)) {
2163 min_width = 48;
2164 min_height = 32;
2165
2166 /* We cannot scale up. When the scaled image is larger
2167 than crop.rect we adjust the crop.rect as required
2168 by the V4L2 spec, hence cropcap.bounds are our limit. */
2169 max_width = min(b->width, (__s32) MAX_HACTIVE);
2170 max_height = b->height;
2171
2172 /* We cannot capture the same line as video and VBI data.
2173 Note btv->vbi_end is really a minimum, see
2174 bttv_vbi_try_fmt(). */
2175 if (btv->vbi_end > b->top) {
2176 max_height -= btv->vbi_end - b->top;
2177 rc = -EBUSY;
2178 if (min_height > max_height)
2179 goto fail;
2180 }
2181 } else {
2182 rc = -EBUSY;
2183 if (btv->vbi_end > c->rect.top)
2184 goto fail;
2185
2186 min_width = c->min_scaled_width;
2187 min_height = c->min_scaled_height;
2188 max_width = c->max_scaled_width;
2189 max_height = c->max_scaled_height;
2190
2191 adjust_crop = 0;
2192 }
2193
2194 min_width = (min_width - width_mask - 1) & width_mask;
2195 max_width = max_width & width_mask;
2196
2197 /* Max. scale factor is 16:1 for frames, 8:1 for fields. */
2198 min_height = min_height;
2199 /* Min. scale factor is 1:1. */
2200 max_height >>= !V4L2_FIELD_HAS_BOTH(field);
2201
2202 if (adjust_size) {
2203 *width = clamp(*width, min_width, max_width);
2204 *height = clamp(*height, min_height, max_height);
2205
2206 /* Round after clamping to avoid overflow. */
2207 *width = (*width + width_bias) & width_mask;
2208
2209 if (adjust_crop) {
2210 bttv_crop_adjust(c, b, *width, *height, field);
2211
2212 if (btv->vbi_end > c->rect.top) {
2213 /* Move the crop window out of the way. */
2214 c->rect.top = btv->vbi_end;
2215 }
2216 }
2217 } else {
2218 rc = -EINVAL;
2219 if (*width < min_width ||
2220 *height < min_height ||
2221 *width > max_width ||
2222 *height > max_height ||
2223 0 != (*width & ~width_mask))
2224 goto fail;
2225 }
2226
2227 rc = 0; /* success */
2228
2229 fail:
2230 mutex_unlock(&btv->lock);
2231
2232 return rc;
2233 }
2234
2235 /* Returns an error if the given overlay window dimensions are not
2236 possible with the current cropping parameters. If adjust_size is
2237 TRUE the function may adjust the window width and/or height
2238 instead, however it always rounds the horizontal position and
2239 width as btcx_align() does. If adjust_crop is TRUE the function
2240 may also adjust the current cropping parameters to get closer
2241 to the desired window size. */
2242 static int
2243 verify_window (struct bttv_fh * fh,
2244 struct v4l2_window * win,
2245 int adjust_size,
2246 int adjust_crop)
2247 {
2248 enum v4l2_field field;
2249 unsigned int width_mask;
2250 int rc;
2251
2252 if (win->w.width < 48 || win->w.height < 32)
2253 return -EINVAL;
2254 if (win->clipcount > 2048)
2255 return -EINVAL;
2256
2257 field = win->field;
2258
2259 if (V4L2_FIELD_ANY == field) {
2260 __s32 height2;
2261
2262 height2 = fh->btv->crop[!!fh->do_crop].rect.height >> 1;
2263 field = (win->w.height > height2)
2264 ? V4L2_FIELD_INTERLACED
2265 : V4L2_FIELD_TOP;
2266 }
2267 switch (field) {
2268 case V4L2_FIELD_TOP:
2269 case V4L2_FIELD_BOTTOM:
2270 case V4L2_FIELD_INTERLACED:
2271 break;
2272 default:
2273 return -EINVAL;
2274 }
2275
2276 /* 4-byte alignment. */
2277 if (NULL == fh->ovfmt)
2278 return -EINVAL;
2279 width_mask = ~0;
2280 switch (fh->ovfmt->depth) {
2281 case 8:
2282 case 24:
2283 width_mask = ~3;
2284 break;
2285 case 16:
2286 width_mask = ~1;
2287 break;
2288 case 32:
2289 break;
2290 default:
2291 BUG();
2292 }
2293
2294 win->w.width -= win->w.left & ~width_mask;
2295 win->w.left = (win->w.left - width_mask - 1) & width_mask;
2296
2297 rc = limit_scaled_size(fh, &win->w.width, &win->w.height,
2298 field, width_mask,
2299 /* width_bias: round down */ 0,
2300 adjust_size, adjust_crop);
2301 if (0 != rc)
2302 return rc;
2303
2304 win->field = field;
2305 return 0;
2306 }
2307
2308 static int setup_window(struct bttv_fh *fh, struct bttv *btv,
2309 struct v4l2_window *win, int fixup)
2310 {
2311 struct v4l2_clip *clips = NULL;
2312 int n,size,retval = 0;
2313
2314 if (NULL == fh->ovfmt)
2315 return -EINVAL;
2316 if (!(fh->ovfmt->flags & FORMAT_FLAGS_PACKED))
2317 return -EINVAL;
2318 retval = verify_window(fh, win,
2319 /* adjust_size */ fixup,
2320 /* adjust_crop */ fixup);
2321 if (0 != retval)
2322 return retval;
2323
2324 /* copy clips -- luckily v4l1 + v4l2 are binary
2325 compatible here ...*/
2326 n = win->clipcount;
2327 size = sizeof(*clips)*(n+4);
2328 clips = kmalloc(size,GFP_KERNEL);
2329 if (NULL == clips)
2330 return -ENOMEM;
2331 if (n > 0) {
2332 if (copy_from_user(clips,win->clips,sizeof(struct v4l2_clip)*n)) {
2333 kfree(clips);
2334 return -EFAULT;
2335 }
2336 }
2337 /* clip against screen */
2338 if (NULL != btv->fbuf.base)
2339 n = btcx_screen_clips(btv->fbuf.fmt.width, btv->fbuf.fmt.height,
2340 &win->w, clips, n);
2341 btcx_sort_clips(clips,n);
2342
2343 /* 4-byte alignments */
2344 switch (fh->ovfmt->depth) {
2345 case 8:
2346 case 24:
2347 btcx_align(&win->w, clips, n, 3);
2348 break;
2349 case 16:
2350 btcx_align(&win->w, clips, n, 1);
2351 break;
2352 case 32:
2353 /* no alignment fixups needed */
2354 break;
2355 default:
2356 BUG();
2357 }
2358
2359 mutex_lock(&fh->cap.vb_lock);
2360 kfree(fh->ov.clips);
2361 fh->ov.clips = clips;
2362 fh->ov.nclips = n;
2363
2364 fh->ov.w = win->w;
2365 fh->ov.field = win->field;
2366 fh->ov.setup_ok = 1;
2367 btv->init.ov.w.width = win->w.width;
2368 btv->init.ov.w.height = win->w.height;
2369 btv->init.ov.field = win->field;
2370
2371 /* update overlay if needed */
2372 retval = 0;
2373 if (check_btres(fh, RESOURCE_OVERLAY)) {
2374 struct bttv_buffer *new;
2375
2376 new = videobuf_sg_alloc(sizeof(*new));
2377 new->crop = btv->crop[!!fh->do_crop].rect;
2378 bttv_overlay_risc(btv, &fh->ov, fh->ovfmt, new);
2379 retval = bttv_switch_overlay(btv,fh,new);
2380 }
2381 mutex_unlock(&fh->cap.vb_lock);
2382 return retval;
2383 }
2384
2385 /* ----------------------------------------------------------------------- */
2386
2387 static struct videobuf_queue* bttv_queue(struct bttv_fh *fh)
2388 {
2389 struct videobuf_queue* q = NULL;
2390
2391 switch (fh->type) {
2392 case V4L2_BUF_TYPE_VIDEO_CAPTURE:
2393 q = &fh->cap;
2394 break;
2395 case V4L2_BUF_TYPE_VBI_CAPTURE:
2396 q = &fh->vbi;
2397 break;
2398 default:
2399 BUG();
2400 }
2401 return q;
2402 }
2403
2404 static int bttv_resource(struct bttv_fh *fh)
2405 {
2406 int res = 0;
2407
2408 switch (fh->type) {
2409 case V4L2_BUF_TYPE_VIDEO_CAPTURE:
2410 res = RESOURCE_VIDEO_STREAM;
2411 break;
2412 case V4L2_BUF_TYPE_VBI_CAPTURE:
2413 res = RESOURCE_VBI;
2414 break;
2415 default:
2416 BUG();
2417 }
2418 return res;
2419 }
2420
2421 static int bttv_switch_type(struct bttv_fh *fh, enum v4l2_buf_type type)
2422 {
2423 struct videobuf_queue *q = bttv_queue(fh);
2424 int res = bttv_resource(fh);
2425
2426 if (check_btres(fh,res))
2427 return -EBUSY;
2428 if (videobuf_queue_is_busy(q))
2429 return -EBUSY;
2430 fh->type = type;
2431 return 0;
2432 }
2433
2434 static void
2435 pix_format_set_size (struct v4l2_pix_format * f,
2436 const struct bttv_format * fmt,
2437 unsigned int width,
2438 unsigned int height)
2439 {
2440 f->width = width;
2441 f->height = height;
2442
2443 if (fmt->flags & FORMAT_FLAGS_PLANAR) {
2444 f->bytesperline = width; /* Y plane */
2445 f->sizeimage = (width * height * fmt->depth) >> 3;
2446 } else {
2447 f->bytesperline = (width * fmt->depth) >> 3;
2448 f->sizeimage = height * f->bytesperline;
2449 }
2450 }
2451
2452 static int bttv_g_fmt_vid_cap(struct file *file, void *priv,
2453 struct v4l2_format *f)
2454 {
2455 struct bttv_fh *fh = priv;
2456
2457 pix_format_set_size(&f->fmt.pix, fh->fmt,
2458 fh->width, fh->height);
2459 f->fmt.pix.field = fh->cap.field;
2460 f->fmt.pix.pixelformat = fh->fmt->fourcc;
2461
2462 return 0;
2463 }
2464
2465 static int bttv_g_fmt_vid_overlay(struct file *file, void *priv,
2466 struct v4l2_format *f)
2467 {
2468 struct bttv_fh *fh = priv;
2469
2470 f->fmt.win.w = fh->ov.w;
2471 f->fmt.win.field = fh->ov.field;
2472
2473 return 0;
2474 }
2475
2476 static int bttv_try_fmt_vid_cap(struct file *file, void *priv,
2477 struct v4l2_format *f)
2478 {
2479 const struct bttv_format *fmt;
2480 struct bttv_fh *fh = priv;
2481 struct bttv *btv = fh->btv;
2482 enum v4l2_field field;
2483 __s32 width, height;
2484 int rc;
2485
2486 fmt = format_by_fourcc(f->fmt.pix.pixelformat);
2487 if (NULL == fmt)
2488 return -EINVAL;
2489
2490 field = f->fmt.pix.field;
2491
2492 if (V4L2_FIELD_ANY == field) {
2493 __s32 height2;
2494
2495 height2 = btv->crop[!!fh->do_crop].rect.height >> 1;
2496 field = (f->fmt.pix.height > height2)
2497 ? V4L2_FIELD_INTERLACED
2498 : V4L2_FIELD_BOTTOM;
2499 }
2500
2501 if (V4L2_FIELD_SEQ_BT == field)
2502 field = V4L2_FIELD_SEQ_TB;
2503
2504 switch (field) {
2505 case V4L2_FIELD_TOP:
2506 case V4L2_FIELD_BOTTOM:
2507 case V4L2_FIELD_ALTERNATE:
2508 case V4L2_FIELD_INTERLACED:
2509 break;
2510 case V4L2_FIELD_SEQ_TB:
2511 if (fmt->flags & FORMAT_FLAGS_PLANAR)
2512 return -EINVAL;
2513 break;
2514 default:
2515 return -EINVAL;
2516 }
2517
2518 width = f->fmt.pix.width;
2519 height = f->fmt.pix.height;
2520
2521 rc = limit_scaled_size(fh, &width, &height, field,
2522 /* width_mask: 4 pixels */ ~3,
2523 /* width_bias: nearest */ 2,
2524 /* adjust_size */ 1,
2525 /* adjust_crop */ 0);
2526 if (0 != rc)
2527 return rc;
2528
2529 /* update data for the application */
2530 f->fmt.pix.field = field;
2531 pix_format_set_size(&f->fmt.pix, fmt, width, height);
2532
2533 return 0;
2534 }
2535
2536 static int bttv_try_fmt_vid_overlay(struct file *file, void *priv,
2537 struct v4l2_format *f)
2538 {
2539 struct bttv_fh *fh = priv;
2540
2541 return verify_window(fh, &f->fmt.win,
2542 /* adjust_size */ 1,
2543 /* adjust_crop */ 0);
2544 }
2545
2546 static int bttv_s_fmt_vid_cap(struct file *file, void *priv,
2547 struct v4l2_format *f)
2548 {
2549 int retval;
2550 const struct bttv_format *fmt;
2551 struct bttv_fh *fh = priv;
2552 struct bttv *btv = fh->btv;
2553 __s32 width, height;
2554 enum v4l2_field field;
2555
2556 retval = bttv_switch_type(fh, f->type);
2557 if (0 != retval)
2558 return retval;
2559
2560 retval = bttv_try_fmt_vid_cap(file, priv, f);
2561 if (0 != retval)
2562 return retval;
2563
2564 width = f->fmt.pix.width;
2565 height = f->fmt.pix.height;
2566 field = f->fmt.pix.field;
2567
2568 retval = limit_scaled_size(fh, &width, &height, f->fmt.pix.field,
2569 /* width_mask: 4 pixels */ ~3,
2570 /* width_bias: nearest */ 2,
2571 /* adjust_size */ 1,
2572 /* adjust_crop */ 1);
2573 if (0 != retval)
2574 return retval;
2575
2576 f->fmt.pix.field = field;
2577
2578 fmt = format_by_fourcc(f->fmt.pix.pixelformat);
2579
2580 /* update our state informations */
2581 mutex_lock(&fh->cap.vb_lock);
2582 fh->fmt = fmt;
2583 fh->cap.field = f->fmt.pix.field;
2584 fh->cap.last = V4L2_FIELD_NONE;
2585 fh->width = f->fmt.pix.width;
2586 fh->height = f->fmt.pix.height;
2587 btv->init.fmt = fmt;
2588 btv->init.width = f->fmt.pix.width;
2589 btv->init.height = f->fmt.pix.height;
2590 mutex_unlock(&fh->cap.vb_lock);
2591
2592 return 0;
2593 }
2594
2595 static int bttv_s_fmt_vid_overlay(struct file *file, void *priv,
2596 struct v4l2_format *f)
2597 {
2598 struct bttv_fh *fh = priv;
2599 struct bttv *btv = fh->btv;
2600
2601 if (no_overlay > 0) {
2602 printk(KERN_ERR "V4L2_BUF_TYPE_VIDEO_OVERLAY: no_overlay\n");
2603 return -EINVAL;
2604 }
2605
2606 return setup_window(fh, btv, &f->fmt.win, 1);
2607 }
2608
2609 #ifdef CONFIG_VIDEO_V4L1_COMPAT
2610 static int vidiocgmbuf(struct file *file, void *priv, struct video_mbuf *mbuf)
2611 {
2612 int retval;
2613 unsigned int i;
2614 struct bttv_fh *fh = priv;
2615
2616 mutex_lock(&fh->cap.vb_lock);
2617 retval = __videobuf_mmap_setup(&fh->cap, gbuffers, gbufsize,
2618 V4L2_MEMORY_MMAP);
2619 if (retval < 0) {
2620 mutex_unlock(&fh->cap.vb_lock);
2621 return retval;
2622 }
2623
2624 gbuffers = retval;
2625 memset(mbuf, 0, sizeof(*mbuf));
2626 mbuf->frames = gbuffers;
2627 mbuf->size = gbuffers * gbufsize;
2628
2629 for (i = 0; i < gbuffers; i++)
2630 mbuf->offsets[i] = i * gbufsize;
2631
2632 mutex_unlock(&fh->cap.vb_lock);
2633 return 0;
2634 }
2635 #endif
2636
2637 static int bttv_querycap(struct file *file, void *priv,
2638 struct v4l2_capability *cap)
2639 {
2640 struct bttv_fh *fh = priv;
2641 struct bttv *btv = fh->btv;
2642
2643 if (0 == v4l2)
2644 return -EINVAL;
2645
2646 strlcpy(cap->driver, "bttv", sizeof(cap->driver));
2647 strlcpy(cap->card, btv->video_dev->name, sizeof(cap->card));
2648 snprintf(cap->bus_info, sizeof(cap->bus_info),
2649 "PCI:%s", pci_name(btv->c.pci));
2650 cap->version = BTTV_VERSION_CODE;
2651 cap->capabilities =
2652 V4L2_CAP_VIDEO_CAPTURE |
2653 V4L2_CAP_VBI_CAPTURE |
2654 V4L2_CAP_READWRITE |
2655 V4L2_CAP_STREAMING;
2656 if (no_overlay <= 0)
2657 cap->capabilities |= V4L2_CAP_VIDEO_OVERLAY;
2658
2659 if (bttv_tvcards[btv->c.type].tuner != UNSET &&
2660 bttv_tvcards[btv->c.type].tuner != TUNER_ABSENT)
2661 cap->capabilities |= V4L2_CAP_TUNER;
2662 return 0;
2663 }
2664
2665 static int bttv_enum_fmt_vbi_cap(struct file *file, void *priv,
2666 struct v4l2_fmtdesc *f)
2667 {
2668 if (0 != f->index)
2669 return -EINVAL;
2670
2671 f->pixelformat = V4L2_PIX_FMT_GREY;
2672 strcpy(f->description, "vbi data");
2673
2674 return 0;
2675 }
2676
2677 static int bttv_enum_fmt_cap_ovr(struct v4l2_fmtdesc *f)
2678 {
2679 int index = -1, i;
2680
2681 for (i = 0; i < FORMATS; i++) {
2682 if (formats[i].fourcc != -1)
2683 index++;
2684 if ((unsigned int)index == f->index)
2685 break;
2686 }
2687 if (FORMATS == i)
2688 return -EINVAL;
2689
2690 f->pixelformat = formats[i].fourcc;
2691 strlcpy(f->description, formats[i].name, sizeof(f->description));
2692
2693 return i;
2694 }
2695
2696 static int bttv_enum_fmt_vid_cap(struct file *file, void *priv,
2697 struct v4l2_fmtdesc *f)
2698 {
2699 int rc = bttv_enum_fmt_cap_ovr(f);
2700
2701 if (rc < 0)
2702 return rc;
2703
2704 return 0;
2705 }
2706
2707 static int bttv_enum_fmt_vid_overlay(struct file *file, void *priv,
2708 struct v4l2_fmtdesc *f)
2709 {
2710 int rc;
2711
2712 if (no_overlay > 0) {
2713 printk(KERN_ERR "V4L2_BUF_TYPE_VIDEO_OVERLAY: no_overlay\n");
2714 return -EINVAL;
2715 }
2716
2717 rc = bttv_enum_fmt_cap_ovr(f);
2718
2719 if (rc < 0)
2720 return rc;
2721
2722 if (!(formats[rc].flags & FORMAT_FLAGS_PACKED))
2723 return -EINVAL;
2724
2725 return 0;
2726 }
2727
2728 static int bttv_g_fbuf(struct file *file, void *f,
2729 struct v4l2_framebuffer *fb)
2730 {
2731 struct bttv_fh *fh = f;
2732 struct bttv *btv = fh->btv;
2733
2734 *fb = btv->fbuf;
2735 fb->capability = V4L2_FBUF_CAP_LIST_CLIPPING;
2736 if (fh->ovfmt)
2737 fb->fmt.pixelformat = fh->ovfmt->fourcc;
2738 return 0;
2739 }
2740
2741 static int bttv_overlay(struct file *file, void *f, unsigned int on)
2742 {
2743 struct bttv_fh *fh = f;
2744 struct bttv *btv = fh->btv;
2745 struct bttv_buffer *new;
2746 int retval;
2747
2748 if (on) {
2749 /* verify args */
2750 if (NULL == btv->fbuf.base)
2751 return -EINVAL;
2752 if (!fh->ov.setup_ok) {
2753 dprintk("bttv%d: overlay: !setup_ok\n", btv->c.nr);
2754 return -EINVAL;
2755 }
2756 }
2757
2758 if (!check_alloc_btres(btv, fh, RESOURCE_OVERLAY))
2759 return -EBUSY;
2760
2761 mutex_lock(&fh->cap.vb_lock);
2762 if (on) {
2763 fh->ov.tvnorm = btv->tvnorm;
2764 new = videobuf_sg_alloc(sizeof(*new));
2765 new->crop = btv->crop[!!fh->do_crop].rect;
2766 bttv_overlay_risc(btv, &fh->ov, fh->ovfmt, new);
2767 } else {
2768 new = NULL;
2769 }
2770
2771 /* switch over */
2772 retval = bttv_switch_overlay(btv, fh, new);
2773 mutex_unlock(&fh->cap.vb_lock);
2774 return retval;
2775 }
2776
2777 static int bttv_s_fbuf(struct file *file, void *f,
2778 struct v4l2_framebuffer *fb)
2779 {
2780 struct bttv_fh *fh = f;
2781 struct bttv *btv = fh->btv;
2782 const struct bttv_format *fmt;
2783 int retval;
2784
2785 if (!capable(CAP_SYS_ADMIN) &&
2786 !capable(CAP_SYS_RAWIO))
2787 return -EPERM;
2788
2789 /* check args */
2790 fmt = format_by_fourcc(fb->fmt.pixelformat);
2791 if (NULL == fmt)
2792 return -EINVAL;
2793 if (0 == (fmt->flags & FORMAT_FLAGS_PACKED))
2794 return -EINVAL;
2795
2796 retval = -EINVAL;
2797 if (fb->flags & V4L2_FBUF_FLAG_OVERLAY) {
2798 __s32 width = fb->fmt.width;
2799 __s32 height = fb->fmt.height;
2800
2801 retval = limit_scaled_size(fh, &width, &height,
2802 V4L2_FIELD_INTERLACED,
2803 /* width_mask */ ~3,
2804 /* width_bias */ 2,
2805 /* adjust_size */ 0,
2806 /* adjust_crop */ 0);
2807 if (0 != retval)
2808 return retval;
2809 }
2810
2811 /* ok, accept it */
2812 mutex_lock(&fh->cap.vb_lock);
2813 btv->fbuf.base = fb->base;
2814 btv->fbuf.fmt.width = fb->fmt.width;
2815 btv->fbuf.fmt.height = fb->fmt.height;
2816 if (0 != fb->fmt.bytesperline)
2817 btv->fbuf.fmt.bytesperline = fb->fmt.bytesperline;
2818 else
2819 btv->fbuf.fmt.bytesperline = btv->fbuf.fmt.width*fmt->depth/8;
2820
2821 retval = 0;
2822 fh->ovfmt = fmt;
2823 btv->init.ovfmt = fmt;
2824 if (fb->flags & V4L2_FBUF_FLAG_OVERLAY) {
2825 fh->ov.w.left = 0;
2826 fh->ov.w.top = 0;
2827 fh->ov.w.width = fb->fmt.width;
2828 fh->ov.w.height = fb->fmt.height;
2829 btv->init.ov.w.width = fb->fmt.width;
2830 btv->init.ov.w.height = fb->fmt.height;
2831 kfree(fh->ov.clips);
2832 fh->ov.clips = NULL;
2833 fh->ov.nclips = 0;
2834
2835 if (check_btres(fh, RESOURCE_OVERLAY)) {
2836 struct bttv_buffer *new;
2837
2838 new = videobuf_sg_alloc(sizeof(*new));
2839 new->crop = btv->crop[!!fh->do_crop].rect;
2840 bttv_overlay_risc(btv, &fh->ov, fh->ovfmt, new);
2841 retval = bttv_switch_overlay(btv, fh, new);
2842 }
2843 }
2844 mutex_unlock(&fh->cap.vb_lock);
2845 return retval;
2846 }
2847
2848 static int bttv_reqbufs(struct file *file, void *priv,
2849 struct v4l2_requestbuffers *p)
2850 {
2851 struct bttv_fh *fh = priv;
2852 return videobuf_reqbufs(bttv_queue(fh), p);
2853 }
2854
2855 static int bttv_querybuf(struct file *file, void *priv,
2856 struct v4l2_buffer *b)
2857 {
2858 struct bttv_fh *fh = priv;
2859 return videobuf_querybuf(bttv_queue(fh), b);
2860 }
2861
2862 static int bttv_qbuf(struct file *file, void *priv, struct v4l2_buffer *b)
2863 {
2864 struct bttv_fh *fh = priv;
2865 struct bttv *btv = fh->btv;
2866 int res = bttv_resource(fh);
2867
2868 if (!check_alloc_btres(btv, fh, res))
2869 return -EBUSY;
2870
2871 return videobuf_qbuf(bttv_queue(fh), b);
2872 }
2873
2874 static int bttv_dqbuf(struct file *file, void *priv, struct v4l2_buffer *b)
2875 {
2876 struct bttv_fh *fh = priv;
2877 return videobuf_dqbuf(bttv_queue(fh), b,
2878 file->f_flags & O_NONBLOCK);
2879 }
2880
2881 static int bttv_streamon(struct file *file, void *priv,
2882 enum v4l2_buf_type type)
2883 {
2884 struct bttv_fh *fh = priv;
2885 struct bttv *btv = fh->btv;
2886 int res = bttv_resource(fh);
2887
2888 if (!check_alloc_btres(btv, fh, res))
2889 return -EBUSY;
2890 return videobuf_streamon(bttv_queue(fh));
2891 }
2892
2893
2894 static int bttv_streamoff(struct file *file, void *priv,
2895 enum v4l2_buf_type type)
2896 {
2897 struct bttv_fh *fh = priv;
2898 struct bttv *btv = fh->btv;
2899 int retval;
2900 int res = bttv_resource(fh);
2901
2902
2903 retval = videobuf_streamoff(bttv_queue(fh));
2904 if (retval < 0)
2905 return retval;
2906 free_btres(btv, fh, res);
2907 return 0;
2908 }
2909
2910 static int bttv_queryctrl(struct file *file, void *priv,
2911 struct v4l2_queryctrl *c)
2912 {
2913 struct bttv_fh *fh = priv;
2914 struct bttv *btv = fh->btv;
2915 const struct v4l2_queryctrl *ctrl;
2916
2917 if ((c->id < V4L2_CID_BASE ||
2918 c->id >= V4L2_CID_LASTP1) &&
2919 (c->id < V4L2_CID_PRIVATE_BASE ||
2920 c->id >= V4L2_CID_PRIVATE_LASTP1))
2921 return -EINVAL;
2922
2923 if (!btv->volume_gpio && (c->id == V4L2_CID_AUDIO_VOLUME))
2924 *c = no_ctl;
2925 else {
2926 ctrl = ctrl_by_id(c->id);
2927
2928 *c = (NULL != ctrl) ? *ctrl : no_ctl;
2929 }
2930
2931 return 0;
2932 }
2933
2934 static int bttv_g_parm(struct file *file, void *f,
2935 struct v4l2_streamparm *parm)
2936 {
2937 struct bttv_fh *fh = f;
2938 struct bttv *btv = fh->btv;
2939 struct v4l2_standard s;
2940
2941 if (parm->type != V4L2_BUF_TYPE_VIDEO_CAPTURE)
2942 return -EINVAL;
2943 v4l2_video_std_construct(&s, bttv_tvnorms[btv->tvnorm].v4l2_id,
2944 bttv_tvnorms[btv->tvnorm].name);
2945 parm->parm.capture.timeperframe = s.frameperiod;
2946 return 0;
2947 }
2948
2949 static int bttv_g_tuner(struct file *file, void *priv,
2950 struct v4l2_tuner *t)
2951 {
2952 struct bttv_fh *fh = priv;
2953 struct bttv *btv = fh->btv;
2954
2955 if (UNSET == bttv_tvcards[btv->c.type].tuner)
2956 return -EINVAL;
2957 if (0 != t->index)
2958 return -EINVAL;
2959
2960 mutex_lock(&btv->lock);
2961 memset(t, 0, sizeof(*t));
2962 t->rxsubchans = V4L2_TUNER_SUB_MONO;
2963 bttv_call_i2c_clients(btv, VIDIOC_G_TUNER, t);
2964 strcpy(t->name, "Television");
2965 t->capability = V4L2_TUNER_CAP_NORM;
2966 t->type = V4L2_TUNER_ANALOG_TV;
2967 if (btread(BT848_DSTATUS)&BT848_DSTATUS_HLOC)
2968 t->signal = 0xffff;
2969
2970 if (btv->audio_mode_gpio)
2971 btv->audio_mode_gpio(btv, t, 0);
2972
2973 mutex_unlock(&btv->lock);
2974 return 0;
2975 }
2976
2977 static int bttv_g_priority(struct file *file, void *f, enum v4l2_priority *p)
2978 {
2979 struct bttv_fh *fh = f;
2980 struct bttv *btv = fh->btv;
2981
2982 *p = v4l2_prio_max(&btv->prio);
2983
2984 return 0;
2985 }
2986
2987 static int bttv_s_priority(struct file *file, void *f,
2988 enum v4l2_priority prio)
2989 {
2990 struct bttv_fh *fh = f;
2991 struct bttv *btv = fh->btv;
2992
2993 return v4l2_prio_change(&btv->prio, &fh->prio, prio);
2994 }
2995
2996 static int bttv_cropcap(struct file *file, void *priv,
2997 struct v4l2_cropcap *cap)
2998 {
2999 struct bttv_fh *fh = priv;
3000 struct bttv *btv = fh->btv;
3001
3002 if (cap->type != V4L2_BUF_TYPE_VIDEO_CAPTURE &&
3003 cap->type != V4L2_BUF_TYPE_VIDEO_OVERLAY)
3004 return -EINVAL;
3005
3006 *cap = bttv_tvnorms[btv->tvnorm].cropcap;
3007
3008 return 0;
3009 }
3010
3011 static int bttv_g_crop(struct file *file, void *f, struct v4l2_crop *crop)
3012 {
3013 struct bttv_fh *fh = f;
3014 struct bttv *btv = fh->btv;
3015
3016 if (crop->type != V4L2_BUF_TYPE_VIDEO_CAPTURE &&
3017 crop->type != V4L2_BUF_TYPE_VIDEO_OVERLAY)
3018 return -EINVAL;
3019
3020 /* No fh->do_crop = 1; because btv->crop[1] may be
3021 inconsistent with fh->width or fh->height and apps
3022 do not expect a change here. */
3023
3024 crop->c = btv->crop[!!fh->do_crop].rect;
3025
3026 return 0;
3027 }
3028
3029 static int bttv_s_crop(struct file *file, void *f, struct v4l2_crop *crop)
3030 {
3031 struct bttv_fh *fh = f;
3032 struct bttv *btv = fh->btv;
3033 const struct v4l2_rect *b;
3034 int retval;
3035 struct bttv_crop c;
3036 __s32 b_left;
3037 __s32 b_top;
3038 __s32 b_right;
3039 __s32 b_bottom;
3040
3041 if (crop->type != V4L2_BUF_TYPE_VIDEO_CAPTURE &&
3042 crop->type != V4L2_BUF_TYPE_VIDEO_OVERLAY)
3043 return -EINVAL;
3044
3045 retval = v4l2_prio_check(&btv->prio, &fh->prio);
3046 if (0 != retval)
3047 return retval;
3048
3049 /* Make sure tvnorm, vbi_end and the current cropping
3050 parameters remain consistent until we're done. Note
3051 read() may change vbi_end in check_alloc_btres(). */
3052 mutex_lock(&btv->lock);
3053
3054 retval = -EBUSY;
3055
3056 if (locked_btres(fh->btv, VIDEO_RESOURCES)) {
3057 mutex_unlock(&btv->lock);
3058 return retval;
3059 }
3060
3061 b = &bttv_tvnorms[btv->tvnorm].cropcap.bounds;
3062
3063 b_left = b->left;
3064 b_right = b_left + b->width;
3065 b_bottom = b->top + b->height;
3066
3067 b_top = max(b->top, btv->vbi_end);
3068 if (b_top + 32 >= b_bottom) {
3069 mutex_unlock(&btv->lock);
3070 return retval;
3071 }
3072
3073 /* Min. scaled size 48 x 32. */
3074 c.rect.left = clamp(crop->c.left, b_left, b_right - 48);
3075 c.rect.left = min(c.rect.left, (__s32) MAX_HDELAY);
3076
3077 c.rect.width = clamp(crop->c.width,
3078 48, b_right - c.rect.left);
3079
3080 c.rect.top = clamp(crop->c.top, b_top, b_bottom - 32);
3081 /* Top and height must be a multiple of two. */
3082 c.rect.top = (c.rect.top + 1) & ~1;
3083
3084 c.rect.height = clamp(crop->c.height,
3085 32, b_bottom - c.rect.top);
3086 c.rect.height = (c.rect.height + 1) & ~1;
3087
3088 bttv_crop_calc_limits(&c);
3089
3090 btv->crop[1] = c;
3091
3092 mutex_unlock(&btv->lock);
3093
3094 fh->do_crop = 1;
3095
3096 mutex_lock(&fh->cap.vb_lock);
3097
3098 if (fh->width < c.min_scaled_width) {
3099 fh->width = c.min_scaled_width;
3100 btv->init.width = c.min_scaled_width;
3101 } else if (fh->width > c.max_scaled_width) {
3102 fh->width = c.max_scaled_width;
3103 btv->init.width = c.max_scaled_width;
3104 }
3105
3106 if (fh->height < c.min_scaled_height) {
3107 fh->height = c.min_scaled_height;
3108 btv->init.height = c.min_scaled_height;
3109 } else if (fh->height > c.max_scaled_height) {
3110 fh->height = c.max_scaled_height;
3111 btv->init.height = c.max_scaled_height;
3112 }
3113
3114 mutex_unlock(&fh->cap.vb_lock);
3115
3116 return 0;
3117 }
3118
3119 static int bttv_g_audio(struct file *file, void *priv, struct v4l2_audio *a)
3120 {
3121 if (unlikely(a->index))
3122 return -EINVAL;
3123
3124 strcpy(a->name, "audio");
3125 return 0;
3126 }
3127
3128 static int bttv_s_audio(struct file *file, void *priv, struct v4l2_audio *a)
3129 {
3130 if (unlikely(a->index))
3131 return -EINVAL;
3132
3133 return 0;
3134 }
3135
3136 static ssize_t bttv_read(struct file *file, char __user *data,
3137 size_t count, loff_t *ppos)
3138 {
3139 struct bttv_fh *fh = file->private_data;
3140 int retval = 0;
3141
3142 if (fh->btv->errors)
3143 bttv_reinit_bt848(fh->btv);
3144 dprintk("bttv%d: read count=%d type=%s\n",
3145 fh->btv->c.nr,(int)count,v4l2_type_names[fh->type]);
3146
3147 switch (fh->type) {
3148 case V4L2_BUF_TYPE_VIDEO_CAPTURE:
3149 if (!check_alloc_btres(fh->btv, fh, RESOURCE_VIDEO_READ)) {
3150 /* VIDEO_READ in use by another fh,
3151 or VIDEO_STREAM by any fh. */
3152 return -EBUSY;
3153 }
3154 retval = videobuf_read_one(&fh->cap, data, count, ppos,
3155 file->f_flags & O_NONBLOCK);
3156 free_btres(fh->btv, fh, RESOURCE_VIDEO_READ);
3157 break;
3158 case V4L2_BUF_TYPE_VBI_CAPTURE:
3159 if (!check_alloc_btres(fh->btv,fh,RESOURCE_VBI))
3160 return -EBUSY;
3161 retval = videobuf_read_stream(&fh->vbi, data, count, ppos, 1,
3162 file->f_flags & O_NONBLOCK);
3163 break;
3164 default:
3165 BUG();
3166 }
3167 return retval;
3168 }
3169
3170 static unsigned int bttv_poll(struct file *file, poll_table *wait)
3171 {
3172 struct bttv_fh *fh = file->private_data;
3173 struct bttv_buffer *buf;
3174 enum v4l2_field field;
3175
3176 if (V4L2_BUF_TYPE_VBI_CAPTURE == fh->type) {
3177 if (!check_alloc_btres(fh->btv,fh,RESOURCE_VBI))
3178 return POLLERR;
3179 return videobuf_poll_stream(file, &fh->vbi, wait);
3180 }
3181
3182 if (check_btres(fh,RESOURCE_VIDEO_STREAM)) {
3183 /* streaming capture */
3184 if (list_empty(&fh->cap.stream))
3185 return POLLERR;
3186 buf = list_entry(fh->cap.stream.next,struct bttv_buffer,vb.stream);
3187 } else {
3188 /* read() capture */
3189 mutex_lock(&fh->cap.vb_lock);
3190 if (NULL == fh->cap.read_buf) {
3191 /* need to capture a new frame */
3192 if (locked_btres(fh->btv,RESOURCE_VIDEO_STREAM))
3193 goto err;
3194 fh->cap.read_buf = videobuf_sg_alloc(fh->cap.msize);
3195 if (NULL == fh->cap.read_buf)
3196 goto err;
3197 fh->cap.read_buf->memory = V4L2_MEMORY_USERPTR;
3198 field = videobuf_next_field(&fh->cap);
3199 if (0 != fh->cap.ops->buf_prepare(&fh->cap,fh->cap.read_buf,field)) {
3200 kfree (fh->cap.read_buf);
3201 fh->cap.read_buf = NULL;
3202 goto err;
3203 }
3204 fh->cap.ops->buf_queue(&fh->cap,fh->cap.read_buf);
3205 fh->cap.read_off = 0;
3206 }
3207 mutex_unlock(&fh->cap.vb_lock);
3208 buf = (struct bttv_buffer*)fh->cap.read_buf;
3209 }
3210
3211 poll_wait(file, &buf->vb.done, wait);
3212 if (buf->vb.state == VIDEOBUF_DONE ||
3213 buf->vb.state == VIDEOBUF_ERROR)
3214 return POLLIN|POLLRDNORM;
3215 return 0;
3216 err:
3217 mutex_unlock(&fh->cap.vb_lock);
3218 return POLLERR;
3219 }
3220
3221 static int bttv_open(struct inode *inode, struct file *file)
3222 {
3223 int minor = iminor(inode);
3224 struct bttv *btv = NULL;
3225 struct bttv_fh *fh;
3226 enum v4l2_buf_type type = 0;
3227 unsigned int i;
3228
3229 dprintk(KERN_DEBUG "bttv: open minor=%d\n",minor);
3230
3231 for (i = 0; i < bttv_num; i++) {
3232 if (bttvs[i].video_dev &&
3233 bttvs[i].video_dev->minor == minor) {
3234 btv = &bttvs[i];
3235 type = V4L2_BUF_TYPE_VIDEO_CAPTURE;
3236 break;
3237 }
3238 if (bttvs[i].vbi_dev &&
3239 bttvs[i].vbi_dev->minor == minor) {
3240 btv = &bttvs[i];
3241 type = V4L2_BUF_TYPE_VBI_CAPTURE;
3242 break;
3243 }
3244 }
3245 if (NULL == btv)
3246 return -ENODEV;
3247
3248 dprintk(KERN_DEBUG "bttv%d: open called (type=%s)\n",
3249 btv->c.nr,v4l2_type_names[type]);
3250
3251 /* allocate per filehandle data */
3252 fh = kmalloc(sizeof(*fh),GFP_KERNEL);
3253 if (NULL == fh)
3254 return -ENOMEM;
3255 file->private_data = fh;
3256 *fh = btv->init;
3257 fh->type = type;
3258 fh->ov.setup_ok = 0;
3259 v4l2_prio_open(&btv->prio,&fh->prio);
3260
3261 videobuf_queue_sg_init(&fh->cap, &bttv_video_qops,
3262 &btv->c.pci->dev, &btv->s_lock,
3263 V4L2_BUF_TYPE_VIDEO_CAPTURE,
3264 V4L2_FIELD_INTERLACED,
3265 sizeof(struct bttv_buffer),
3266 fh);
3267 videobuf_queue_sg_init(&fh->vbi, &bttv_vbi_qops,
3268 &btv->c.pci->dev, &btv->s_lock,
3269 V4L2_BUF_TYPE_VBI_CAPTURE,
3270 V4L2_FIELD_SEQ_TB,
3271 sizeof(struct bttv_buffer),
3272 fh);
3273 set_tvnorm(btv,btv->tvnorm);
3274
3275 btv->users++;
3276
3277 /* The V4L2 spec requires one global set of cropping parameters
3278 which only change on request. These are stored in btv->crop[1].
3279 However for compatibility with V4L apps and cropping unaware
3280 V4L2 apps we now reset the cropping parameters as seen through
3281 this fh, which is to say VIDIOC_G_CROP and scaling limit checks
3282 will use btv->crop[0], the default cropping parameters for the
3283 current video standard, and VIDIOC_S_FMT will not implicitely
3284 change the cropping parameters until VIDIOC_S_CROP has been
3285 called. */
3286 fh->do_crop = !reset_crop; /* module parameter */
3287
3288 /* Likewise there should be one global set of VBI capture
3289 parameters, but for compatibility with V4L apps and earlier
3290 driver versions each fh has its own parameters. */
3291 bttv_vbi_fmt_reset(&fh->vbi_fmt, btv->tvnorm);
3292
3293 bttv_field_count(btv);
3294 return 0;
3295 }
3296
3297 static int bttv_release(struct inode *inode, struct file *file)
3298 {
3299 struct bttv_fh *fh = file->private_data;
3300 struct bttv *btv = fh->btv;
3301
3302 /* turn off overlay */
3303 if (check_btres(fh, RESOURCE_OVERLAY))
3304 bttv_switch_overlay(btv,fh,NULL);
3305
3306 /* stop video capture */
3307 if (check_btres(fh, RESOURCE_VIDEO_STREAM)) {
3308 videobuf_streamoff(&fh->cap);
3309 free_btres(btv,fh,RESOURCE_VIDEO_STREAM);
3310 }
3311 if (fh->cap.read_buf) {
3312 buffer_release(&fh->cap,fh->cap.read_buf);
3313 kfree(fh->cap.read_buf);
3314 }
3315 if (check_btres(fh, RESOURCE_VIDEO_READ)) {
3316 free_btres(btv, fh, RESOURCE_VIDEO_READ);
3317 }
3318
3319 /* stop vbi capture */
3320 if (check_btres(fh, RESOURCE_VBI)) {
3321 videobuf_stop(&fh->vbi);
3322 free_btres(btv,fh,RESOURCE_VBI);
3323 }
3324
3325 /* free stuff */
3326 videobuf_mmap_free(&fh->cap);
3327 videobuf_mmap_free(&fh->vbi);
3328 v4l2_prio_close(&btv->prio,&fh->prio);
3329 file->private_data = NULL;
3330 kfree(fh);
3331
3332 btv->users--;
3333 bttv_field_count(btv);
3334 return 0;
3335 }
3336
3337 static int
3338 bttv_mmap(struct file *file, struct vm_area_struct *vma)
3339 {
3340 struct bttv_fh *fh = file->private_data;
3341
3342 dprintk("bttv%d: mmap type=%s 0x%lx+%ld\n",
3343 fh->btv->c.nr, v4l2_type_names[fh->type],
3344 vma->vm_start, vma->vm_end - vma->vm_start);
3345 return videobuf_mmap_mapper(bttv_queue(fh),vma);
3346 }
3347
3348 static const struct file_operations bttv_fops =
3349 {
3350 .owner = THIS_MODULE,
3351 .open = bttv_open,
3352 .release = bttv_release,
3353 .ioctl = video_ioctl2,
3354 .compat_ioctl = v4l_compat_ioctl32,
3355 .llseek = no_llseek,
3356 .read = bttv_read,
3357 .mmap = bttv_mmap,
3358 .poll = bttv_poll,
3359 };
3360
3361 static const struct v4l2_ioctl_ops bttv_ioctl_ops = {
3362 .vidioc_querycap = bttv_querycap,
3363 .vidioc_enum_fmt_vid_cap = bttv_enum_fmt_vid_cap,
3364 .vidioc_g_fmt_vid_cap = bttv_g_fmt_vid_cap,
3365 .vidioc_try_fmt_vid_cap = bttv_try_fmt_vid_cap,
3366 .vidioc_s_fmt_vid_cap = bttv_s_fmt_vid_cap,
3367 .vidioc_enum_fmt_vid_overlay = bttv_enum_fmt_vid_overlay,
3368 .vidioc_g_fmt_vid_overlay = bttv_g_fmt_vid_overlay,
3369 .vidioc_try_fmt_vid_overlay = bttv_try_fmt_vid_overlay,
3370 .vidioc_s_fmt_vid_overlay = bttv_s_fmt_vid_overlay,
3371 .vidioc_enum_fmt_vbi_cap = bttv_enum_fmt_vbi_cap,
3372 .vidioc_g_fmt_vbi_cap = bttv_g_fmt_vbi_cap,
3373 .vidioc_try_fmt_vbi_cap = bttv_try_fmt_vbi_cap,
3374 .vidioc_s_fmt_vbi_cap = bttv_s_fmt_vbi_cap,
3375 .vidioc_g_audio = bttv_g_audio,
3376 .vidioc_s_audio = bttv_s_audio,
3377 .vidioc_cropcap = bttv_cropcap,
3378 .vidioc_reqbufs = bttv_reqbufs,
3379 .vidioc_querybuf = bttv_querybuf,
3380 .vidioc_qbuf = bttv_qbuf,
3381 .vidioc_dqbuf = bttv_dqbuf,
3382 .vidioc_s_std = bttv_s_std,
3383 .vidioc_enum_input = bttv_enum_input,
3384 .vidioc_g_input = bttv_g_input,
3385 .vidioc_s_input = bttv_s_input,
3386 .vidioc_queryctrl = bttv_queryctrl,
3387 .vidioc_g_ctrl = bttv_g_ctrl,
3388 .vidioc_s_ctrl = bttv_s_ctrl,
3389 .vidioc_streamon = bttv_streamon,
3390 .vidioc_streamoff = bttv_streamoff,
3391 .vidioc_g_tuner = bttv_g_tuner,
3392 .vidioc_s_tuner = bttv_s_tuner,
3393 #ifdef CONFIG_VIDEO_V4L1_COMPAT
3394 .vidiocgmbuf = vidiocgmbuf,
3395 #endif
3396 .vidioc_g_crop = bttv_g_crop,
3397 .vidioc_s_crop = bttv_s_crop,
3398 .vidioc_g_fbuf = bttv_g_fbuf,
3399 .vidioc_s_fbuf = bttv_s_fbuf,
3400 .vidioc_overlay = bttv_overlay,
3401 .vidioc_g_priority = bttv_g_priority,
3402 .vidioc_s_priority = bttv_s_priority,
3403 .vidioc_g_parm = bttv_g_parm,
3404 .vidioc_g_frequency = bttv_g_frequency,
3405 .vidioc_s_frequency = bttv_s_frequency,
3406 .vidioc_log_status = bttv_log_status,
3407 .vidioc_querystd = bttv_querystd,
3408 #ifdef CONFIG_VIDEO_ADV_DEBUG
3409 .vidioc_g_register = bttv_g_register,
3410 .vidioc_s_register = bttv_s_register,
3411 #endif
3412 };
3413
3414 static struct video_device bttv_video_template = {
3415 .fops = &bttv_fops,
3416 .minor = -1,
3417 .ioctl_ops = &bttv_ioctl_ops,
3418 .tvnorms = BTTV_NORMS,
3419 .current_norm = V4L2_STD_PAL,
3420 };
3421
3422 /* ----------------------------------------------------------------------- */
3423 /* radio interface */
3424
3425 static int radio_open(struct inode *inode, struct file *file)
3426 {
3427 int minor = iminor(inode);
3428 struct bttv *btv = NULL;
3429 struct bttv_fh *fh;
3430 unsigned int i;
3431
3432 dprintk("bttv: open minor=%d\n",minor);
3433
3434 for (i = 0; i < bttv_num; i++) {
3435 if (bttvs[i].radio_dev->minor == minor) {
3436 btv = &bttvs[i];
3437 break;
3438 }
3439 }
3440 if (NULL == btv)
3441 return -ENODEV;
3442
3443 dprintk("bttv%d: open called (radio)\n",btv->c.nr);
3444
3445 /* allocate per filehandle data */
3446 fh = kmalloc(sizeof(*fh), GFP_KERNEL);
3447 if (NULL == fh)
3448 return -ENOMEM;
3449 file->private_data = fh;
3450 *fh = btv->init;
3451 v4l2_prio_open(&btv->prio, &fh->prio);
3452
3453 mutex_lock(&btv->lock);
3454
3455 btv->radio_user++;
3456
3457 bttv_call_i2c_clients(btv,AUDC_SET_RADIO,NULL);
3458 audio_input(btv,TVAUDIO_INPUT_RADIO);
3459
3460 mutex_unlock(&btv->lock);
3461 return 0;
3462 }
3463
3464 static int radio_release(struct inode *inode, struct file *file)
3465 {
3466 struct bttv_fh *fh = file->private_data;
3467 struct bttv *btv = fh->btv;
3468 struct rds_command cmd;
3469
3470 file->private_data = NULL;
3471 kfree(fh);
3472
3473 btv->radio_user--;
3474
3475 bttv_call_i2c_clients(btv, RDS_CMD_CLOSE, &cmd);
3476
3477 return 0;
3478 }
3479
3480 static int radio_querycap(struct file *file, void *priv,
3481 struct v4l2_capability *cap)
3482 {
3483 struct bttv_fh *fh = priv;
3484 struct bttv *btv = fh->btv;
3485
3486 strcpy(cap->driver, "bttv");
3487 strlcpy(cap->card, btv->radio_dev->name, sizeof(cap->card));
3488 sprintf(cap->bus_info, "PCI:%s", pci_name(btv->c.pci));
3489 cap->version = BTTV_VERSION_CODE;
3490 cap->capabilities = V4L2_CAP_TUNER;
3491
3492 return 0;
3493 }
3494
3495 static int radio_g_tuner(struct file *file, void *priv, struct v4l2_tuner *t)
3496 {
3497 struct bttv_fh *fh = priv;
3498 struct bttv *btv = fh->btv;
3499
3500 if (UNSET == bttv_tvcards[btv->c.type].tuner)
3501 return -EINVAL;
3502 if (0 != t->index)
3503 return -EINVAL;
3504 mutex_lock(&btv->lock);
3505 memset(t, 0, sizeof(*t));
3506 strcpy(t->name, "Radio");
3507 t->type = V4L2_TUNER_RADIO;
3508
3509 bttv_call_i2c_clients(btv, VIDIOC_G_TUNER, t);
3510
3511 if (btv->audio_mode_gpio)
3512 btv->audio_mode_gpio(btv, t, 0);
3513
3514 mutex_unlock(&btv->lock);
3515
3516 return 0;
3517 }
3518
3519 static int radio_enum_input(struct file *file, void *priv,
3520 struct v4l2_input *i)
3521 {
3522 if (i->index != 0)
3523 return -EINVAL;
3524
3525 strcpy(i->name, "Radio");
3526 i->type = V4L2_INPUT_TYPE_TUNER;
3527
3528 return 0;
3529 }
3530
3531 static int radio_g_audio(struct file *file, void *priv,
3532 struct v4l2_audio *a)
3533 {
3534 if (unlikely(a->index))
3535 return -EINVAL;
3536
3537 strcpy(a->name, "Radio");
3538
3539 return 0;
3540 }
3541
3542 static int radio_s_tuner(struct file *file, void *priv,
3543 struct v4l2_tuner *t)
3544 {
3545 struct bttv_fh *fh = priv;
3546 struct bttv *btv = fh->btv;
3547
3548 if (0 != t->index)
3549 return -EINVAL;
3550
3551 bttv_call_i2c_clients(btv, VIDIOC_G_TUNER, t);
3552 return 0;
3553 }
3554
3555 static int radio_s_audio(struct file *file, void *priv,
3556 struct v4l2_audio *a)
3557 {
3558 if (unlikely(a->index))
3559 return -EINVAL;
3560
3561 return 0;
3562 }
3563
3564 static int radio_s_input(struct file *filp, void *priv, unsigned int i)
3565 {
3566 if (unlikely(i))
3567 return -EINVAL;
3568
3569 return 0;
3570 }
3571
3572 static int radio_s_std(struct file *file, void *fh, v4l2_std_id *norm)
3573 {
3574 return 0;
3575 }
3576
3577 static int radio_queryctrl(struct file *file, void *priv,
3578 struct v4l2_queryctrl *c)
3579 {
3580 const struct v4l2_queryctrl *ctrl;
3581
3582 if (c->id < V4L2_CID_BASE ||
3583 c->id >= V4L2_CID_LASTP1)
3584 return -EINVAL;
3585
3586 if (c->id == V4L2_CID_AUDIO_MUTE) {
3587 ctrl = ctrl_by_id(c->id);
3588 *c = *ctrl;
3589 } else
3590 *c = no_ctl;
3591
3592 return 0;
3593 }
3594
3595 static int radio_g_input(struct file *filp, void *priv, unsigned int *i)
3596 {
3597 *i = 0;
3598 return 0;
3599 }
3600
3601 static ssize_t radio_read(struct file *file, char __user *data,
3602 size_t count, loff_t *ppos)
3603 {
3604 struct bttv_fh *fh = file->private_data;
3605 struct bttv *btv = fh->btv;
3606 struct rds_command cmd;
3607 cmd.block_count = count/3;
3608 cmd.buffer = data;
3609 cmd.instance = file;
3610 cmd.result = -ENODEV;
3611
3612 bttv_call_i2c_clients(btv, RDS_CMD_READ, &cmd);
3613
3614 return cmd.result;
3615 }
3616
3617 static unsigned int radio_poll(struct file *file, poll_table *wait)
3618 {
3619 struct bttv_fh *fh = file->private_data;
3620 struct bttv *btv = fh->btv;
3621 struct rds_command cmd;
3622 cmd.instance = file;
3623 cmd.event_list = wait;
3624 cmd.result = -ENODEV;
3625 bttv_call_i2c_clients(btv, RDS_CMD_POLL, &cmd);
3626
3627 return cmd.result;
3628 }
3629
3630 static const struct file_operations radio_fops =
3631 {
3632 .owner = THIS_MODULE,
3633 .open = radio_open,
3634 .read = radio_read,
3635 .release = radio_release,
3636 .compat_ioctl = v4l_compat_ioctl32,
3637 .ioctl = video_ioctl2,
3638 .llseek = no_llseek,
3639 .poll = radio_poll,
3640 };
3641
3642 static const struct v4l2_ioctl_ops radio_ioctl_ops = {
3643 .vidioc_querycap = radio_querycap,
3644 .vidioc_g_tuner = radio_g_tuner,
3645 .vidioc_enum_input = radio_enum_input,
3646 .vidioc_g_audio = radio_g_audio,
3647 .vidioc_s_tuner = radio_s_tuner,
3648 .vidioc_s_audio = radio_s_audio,
3649 .vidioc_s_input = radio_s_input,
3650 .vidioc_s_std = radio_s_std,
3651 .vidioc_queryctrl = radio_queryctrl,
3652 .vidioc_g_input = radio_g_input,
3653 .vidioc_g_ctrl = bttv_g_ctrl,
3654 .vidioc_s_ctrl = bttv_s_ctrl,
3655 .vidioc_g_frequency = bttv_g_frequency,
3656 .vidioc_s_frequency = bttv_s_frequency,
3657 };
3658
3659 static struct video_device radio_template = {
3660 .fops = &radio_fops,
3661 .minor = -1,
3662 .ioctl_ops = &radio_ioctl_ops,
3663 };
3664
3665 /* ----------------------------------------------------------------------- */
3666 /* some debug code */
3667
3668 static int bttv_risc_decode(u32 risc)
3669 {
3670 static char *instr[16] = {
3671 [ BT848_RISC_WRITE >> 28 ] = "write",
3672 [ BT848_RISC_SKIP >> 28 ] = "skip",
3673 [ BT848_RISC_WRITEC >> 28 ] = "writec",
3674 [ BT848_RISC_JUMP >> 28 ] = "jump",
3675 [ BT848_RISC_SYNC >> 28 ] = "sync",
3676 [ BT848_RISC_WRITE123 >> 28 ] = "write123",
3677 [ BT848_RISC_SKIP123 >> 28 ] = "skip123",
3678 [ BT848_RISC_WRITE1S23 >> 28 ] = "write1s23",
3679 };
3680 static int incr[16] = {
3681 [ BT848_RISC_WRITE >> 28 ] = 2,
3682 [ BT848_RISC_JUMP >> 28 ] = 2,
3683 [ BT848_RISC_SYNC >> 28 ] = 2,
3684 [ BT848_RISC_WRITE123 >> 28 ] = 5,
3685 [ BT848_RISC_SKIP123 >> 28 ] = 2,
3686 [ BT848_RISC_WRITE1S23 >> 28 ] = 3,
3687 };
3688 static char *bits[] = {
3689 "be0", "be1", "be2", "be3/resync",
3690 "set0", "set1", "set2", "set3",
3691 "clr0", "clr1", "clr2", "clr3",
3692 "irq", "res", "eol", "sol",
3693 };
3694 int i;
3695
3696 printk("0x%08x [ %s", risc,
3697 instr[risc >> 28] ? instr[risc >> 28] : "INVALID");
3698 for (i = ARRAY_SIZE(bits)-1; i >= 0; i--)
3699 if (risc & (1 << (i + 12)))
3700 printk(" %s",bits[i]);
3701 printk(" count=%d ]\n", risc & 0xfff);
3702 return incr[risc >> 28] ? incr[risc >> 28] : 1;
3703 }
3704
3705 static void bttv_risc_disasm(struct bttv *btv,
3706 struct btcx_riscmem *risc)
3707 {
3708 unsigned int i,j,n;
3709
3710 printk("%s: risc disasm: %p [dma=0x%08lx]\n",
3711 btv->c.name, risc->cpu, (unsigned long)risc->dma);
3712 for (i = 0; i < (risc->size >> 2); i += n) {
3713 printk("%s: 0x%lx: ", btv->c.name,
3714 (unsigned long)(risc->dma + (i<<2)));
3715 n = bttv_risc_decode(le32_to_cpu(risc->cpu[i]));
3716 for (j = 1; j < n; j++)
3717 printk("%s: 0x%lx: 0x%08x [ arg #%d ]\n",
3718 btv->c.name, (unsigned long)(risc->dma + ((i+j)<<2)),
3719 risc->cpu[i+j], j);
3720 if (0 == risc->cpu[i])
3721 break;
3722 }
3723 }
3724
3725 static void bttv_print_riscaddr(struct bttv *btv)
3726 {
3727 printk(" main: %08Lx\n",
3728 (unsigned long long)btv->main.dma);
3729 printk(" vbi : o=%08Lx e=%08Lx\n",
3730 btv->cvbi ? (unsigned long long)btv->cvbi->top.dma : 0,
3731 btv->cvbi ? (unsigned long long)btv->cvbi->bottom.dma : 0);
3732 printk(" cap : o=%08Lx e=%08Lx\n",
3733 btv->curr.top ? (unsigned long long)btv->curr.top->top.dma : 0,
3734 btv->curr.bottom ? (unsigned long long)btv->curr.bottom->bottom.dma : 0);
3735 printk(" scr : o=%08Lx e=%08Lx\n",
3736 btv->screen ? (unsigned long long)btv->screen->top.dma : 0,
3737 btv->screen ? (unsigned long long)btv->screen->bottom.dma : 0);
3738 bttv_risc_disasm(btv, &btv->main);
3739 }
3740
3741 /* ----------------------------------------------------------------------- */
3742 /* irq handler */
3743
3744 static char *irq_name[] = {
3745 "FMTCHG", // format change detected (525 vs. 625)
3746 "VSYNC", // vertical sync (new field)
3747 "HSYNC", // horizontal sync
3748 "OFLOW", // chroma/luma AGC overflow
3749 "HLOCK", // horizontal lock changed
3750 "VPRES", // video presence changed
3751 "6", "7",
3752 "I2CDONE", // hw irc operation finished
3753 "GPINT", // gpio port triggered irq
3754 "10",
3755 "RISCI", // risc instruction triggered irq
3756 "FBUS", // pixel data fifo dropped data (high pci bus latencies)
3757 "FTRGT", // pixel data fifo overrun
3758 "FDSR", // fifo data stream resyncronisation
3759 "PPERR", // parity error (data transfer)
3760 "RIPERR", // parity error (read risc instructions)
3761 "PABORT", // pci abort
3762 "OCERR", // risc instruction error
3763 "SCERR", // syncronisation error
3764 };
3765
3766 static void bttv_print_irqbits(u32 print, u32 mark)
3767 {
3768 unsigned int i;
3769
3770 printk("bits:");
3771 for (i = 0; i < ARRAY_SIZE(irq_name); i++) {
3772 if (print & (1 << i))
3773 printk(" %s",irq_name[i]);
3774 if (mark & (1 << i))
3775 printk("*");
3776 }
3777 }
3778
3779 static void bttv_irq_debug_low_latency(struct bttv *btv, u32 rc)
3780 {
3781 printk("bttv%d: irq: skipped frame [main=%lx,o_vbi=%lx,o_field=%lx,rc=%lx]\n",
3782 btv->c.nr,
3783 (unsigned long)btv->main.dma,
3784 (unsigned long)le32_to_cpu(btv->main.cpu[RISC_SLOT_O_VBI+1]),
3785 (unsigned long)le32_to_cpu(btv->main.cpu[RISC_SLOT_O_FIELD+1]),
3786 (unsigned long)rc);
3787
3788 if (0 == (btread(BT848_DSTATUS) & BT848_DSTATUS_HLOC)) {
3789 printk("bttv%d: Oh, there (temporarely?) is no input signal. "
3790 "Ok, then this is harmless, don't worry ;)\n",
3791 btv->c.nr);
3792 return;
3793 }
3794 printk("bttv%d: Uhm. Looks like we have unusual high IRQ latencies.\n",
3795 btv->c.nr);
3796 printk("bttv%d: Lets try to catch the culpit red-handed ...\n",
3797 btv->c.nr);
3798 dump_stack();
3799 }
3800
3801 static int
3802 bttv_irq_next_video(struct bttv *btv, struct bttv_buffer_set *set)
3803 {
3804 struct bttv_buffer *item;
3805
3806 memset(set,0,sizeof(*set));
3807
3808 /* capture request ? */
3809 if (!list_empty(&btv->capture)) {
3810 set->frame_irq = 1;
3811 item = list_entry(btv->capture.next, struct bttv_buffer, vb.queue);
3812 if (V4L2_FIELD_HAS_TOP(item->vb.field))
3813 set->top = item;
3814 if (V4L2_FIELD_HAS_BOTTOM(item->vb.field))
3815 set->bottom = item;
3816
3817 /* capture request for other field ? */
3818 if (!V4L2_FIELD_HAS_BOTH(item->vb.field) &&
3819 (item->vb.queue.next != &btv->capture)) {
3820 item = list_entry(item->vb.queue.next, struct bttv_buffer, vb.queue);
3821 if (!V4L2_FIELD_HAS_BOTH(item->vb.field)) {
3822 if (NULL == set->top &&
3823 V4L2_FIELD_TOP == item->vb.field) {
3824 set->top = item;
3825 }
3826 if (NULL == set->bottom &&
3827 V4L2_FIELD_BOTTOM == item->vb.field) {
3828 set->bottom = item;
3829 }
3830 if (NULL != set->top && NULL != set->bottom)
3831 set->top_irq = 2;
3832 }
3833 }
3834 }
3835
3836 /* screen overlay ? */
3837 if (NULL != btv->screen) {
3838 if (V4L2_FIELD_HAS_BOTH(btv->screen->vb.field)) {
3839 if (NULL == set->top && NULL == set->bottom) {
3840 set->top = btv->screen;
3841 set->bottom = btv->screen;
3842 }
3843 } else {
3844 if (V4L2_FIELD_TOP == btv->screen->vb.field &&
3845 NULL == set->top) {
3846 set->top = btv->screen;
3847 }
3848 if (V4L2_FIELD_BOTTOM == btv->screen->vb.field &&
3849 NULL == set->bottom) {
3850 set->bottom = btv->screen;
3851 }
3852 }
3853 }
3854
3855 dprintk("bttv%d: next set: top=%p bottom=%p [screen=%p,irq=%d,%d]\n",
3856 btv->c.nr,set->top, set->bottom,
3857 btv->screen,set->frame_irq,set->top_irq);
3858 return 0;
3859 }
3860
3861 static void
3862 bttv_irq_wakeup_video(struct bttv *btv, struct bttv_buffer_set *wakeup,
3863 struct bttv_buffer_set *curr, unsigned int state)
3864 {
3865 struct timeval ts;
3866
3867 do_gettimeofday(&ts);
3868
3869 if (wakeup->top == wakeup->bottom) {
3870 if (NULL != wakeup->top && curr->top != wakeup->top) {
3871 if (irq_debug > 1)
3872 printk("bttv%d: wakeup: both=%p\n",btv->c.nr,wakeup->top);
3873 wakeup->top->vb.ts = ts;
3874 wakeup->top->vb.field_count = btv->field_count;
3875 wakeup->top->vb.state = state;
3876 wake_up(&wakeup->top->vb.done);
3877 }
3878 } else {
3879 if (NULL != wakeup->top && curr->top != wakeup->top) {
3880 if (irq_debug > 1)
3881 printk("bttv%d: wakeup: top=%p\n",btv->c.nr,wakeup->top);
3882 wakeup->top->vb.ts = ts;
3883 wakeup->top->vb.field_count = btv->field_count;
3884 wakeup->top->vb.state = state;
3885 wake_up(&wakeup->top->vb.done);
3886 }
3887 if (NULL != wakeup->bottom && curr->bottom != wakeup->bottom) {
3888 if (irq_debug > 1)
3889 printk("bttv%d: wakeup: bottom=%p\n",btv->c.nr,wakeup->bottom);
3890 wakeup->bottom->vb.ts = ts;
3891 wakeup->bottom->vb.field_count = btv->field_count;
3892 wakeup->bottom->vb.state = state;
3893 wake_up(&wakeup->bottom->vb.done);
3894 }
3895 }
3896 }
3897
3898 static void
3899 bttv_irq_wakeup_vbi(struct bttv *btv, struct bttv_buffer *wakeup,
3900 unsigned int state)
3901 {
3902 struct timeval ts;
3903
3904 if (NULL == wakeup)
3905 return;
3906
3907 do_gettimeofday(&ts);
3908 wakeup->vb.ts = ts;
3909 wakeup->vb.field_count = btv->field_count;
3910 wakeup->vb.state = state;
3911 wake_up(&wakeup->vb.done);
3912 }
3913
3914 static void bttv_irq_timeout(unsigned long data)
3915 {
3916 struct bttv *btv = (struct bttv *)data;
3917 struct bttv_buffer_set old,new;
3918 struct bttv_buffer *ovbi;
3919 struct bttv_buffer *item;
3920 unsigned long flags;
3921
3922 if (bttv_verbose) {
3923 printk(KERN_INFO "bttv%d: timeout: drop=%d irq=%d/%d, risc=%08x, ",
3924 btv->c.nr, btv->framedrop, btv->irq_me, btv->irq_total,
3925 btread(BT848_RISC_COUNT));
3926 bttv_print_irqbits(btread(BT848_INT_STAT),0);
3927 printk("\n");
3928 }
3929
3930 spin_lock_irqsave(&btv->s_lock,flags);
3931
3932 /* deactivate stuff */
3933 memset(&new,0,sizeof(new));
3934 old = btv->curr;
3935 ovbi = btv->cvbi;
3936 btv->curr = new;
3937 btv->cvbi = NULL;
3938 btv->loop_irq = 0;
3939 bttv_buffer_activate_video(btv, &new);
3940 bttv_buffer_activate_vbi(btv, NULL);
3941 bttv_set_dma(btv, 0);
3942
3943 /* wake up */
3944 bttv_irq_wakeup_video(btv, &old, &new, VIDEOBUF_ERROR);
3945 bttv_irq_wakeup_vbi(btv, ovbi, VIDEOBUF_ERROR);
3946
3947 /* cancel all outstanding capture / vbi requests */
3948 while (!list_empty(&btv->capture)) {
3949 item = list_entry(btv->capture.next, struct bttv_buffer, vb.queue);
3950 list_del(&item->vb.queue);
3951 item->vb.state = VIDEOBUF_ERROR;
3952 wake_up(&item->vb.done);
3953 }
3954 while (!list_empty(&btv->vcapture)) {
3955 item = list_entry(btv->vcapture.next, struct bttv_buffer, vb.queue);
3956 list_del(&item->vb.queue);
3957 item->vb.state = VIDEOBUF_ERROR;
3958 wake_up(&item->vb.done);
3959 }
3960
3961 btv->errors++;
3962 spin_unlock_irqrestore(&btv->s_lock,flags);
3963 }
3964
3965 static void
3966 bttv_irq_wakeup_top(struct bttv *btv)
3967 {
3968 struct bttv_buffer *wakeup = btv->curr.top;
3969
3970 if (NULL == wakeup)
3971 return;
3972
3973 spin_lock(&btv->s_lock);
3974 btv->curr.top_irq = 0;
3975 btv->curr.top = NULL;
3976 bttv_risc_hook(btv, RISC_SLOT_O_FIELD, NULL, 0);
3977
3978 do_gettimeofday(&wakeup->vb.ts);
3979 wakeup->vb.field_count = btv->field_count;
3980 wakeup->vb.state = VIDEOBUF_DONE;
3981 wake_up(&wakeup->vb.done);
3982 spin_unlock(&btv->s_lock);
3983 }
3984
3985 static inline int is_active(struct btcx_riscmem *risc, u32 rc)
3986 {
3987 if (rc < risc->dma)
3988 return 0;
3989 if (rc > risc->dma + risc->size)
3990 return 0;
3991 return 1;
3992 }
3993
3994 static void
3995 bttv_irq_switch_video(struct bttv *btv)
3996 {
3997 struct bttv_buffer_set new;
3998 struct bttv_buffer_set old;
3999 dma_addr_t rc;
4000
4001 spin_lock(&btv->s_lock);
4002
4003 /* new buffer set */
4004 bttv_irq_next_video(btv, &new);
4005 rc = btread(BT848_RISC_COUNT);
4006 if ((btv->curr.top && is_active(&btv->curr.top->top, rc)) ||
4007 (btv->curr.bottom && is_active(&btv->curr.bottom->bottom, rc))) {
4008 btv->framedrop++;
4009 if (debug_latency)
4010 bttv_irq_debug_low_latency(btv, rc);
4011 spin_unlock(&btv->s_lock);
4012 return;
4013 }
4014
4015 /* switch over */
4016 old = btv->curr;
4017 btv->curr = new;
4018 btv->loop_irq &= ~1;
4019 bttv_buffer_activate_video(btv, &new);
4020 bttv_set_dma(btv, 0);
4021
4022 /* switch input */
4023 if (UNSET != btv->new_input) {
4024 video_mux(btv,btv->new_input);
4025 btv->new_input = UNSET;
4026 }
4027
4028 /* wake up finished buffers */
4029 bttv_irq_wakeup_video(btv, &old, &new, VIDEOBUF_DONE);
4030 spin_unlock(&btv->s_lock);
4031 }
4032
4033 static void
4034 bttv_irq_switch_vbi(struct bttv *btv)
4035 {
4036 struct bttv_buffer *new = NULL;
4037 struct bttv_buffer *old;
4038 u32 rc;
4039
4040 spin_lock(&btv->s_lock);
4041
4042 if (!list_empty(&btv->vcapture))
4043 new = list_entry(btv->vcapture.next, struct bttv_buffer, vb.queue);
4044 old = btv->cvbi;
4045
4046 rc = btread(BT848_RISC_COUNT);
4047 if (NULL != old && (is_active(&old->top, rc) ||
4048 is_active(&old->bottom, rc))) {
4049 btv->framedrop++;
4050 if (debug_latency)
4051 bttv_irq_debug_low_latency(btv, rc);
4052 spin_unlock(&btv->s_lock);
4053 return;
4054 }
4055
4056 /* switch */
4057 btv->cvbi = new;
4058 btv->loop_irq &= ~4;
4059 bttv_buffer_activate_vbi(btv, new);
4060 bttv_set_dma(btv, 0);
4061
4062 bttv_irq_wakeup_vbi(btv, old, VIDEOBUF_DONE);
4063 spin_unlock(&btv->s_lock);
4064 }
4065
4066 static irqreturn_t bttv_irq(int irq, void *dev_id)
4067 {
4068 u32 stat,astat;
4069 u32 dstat;
4070 int count;
4071 struct bttv *btv;
4072 int handled = 0;
4073
4074 btv=(struct bttv *)dev_id;
4075
4076 if (btv->custom_irq)
4077 handled = btv->custom_irq(btv);
4078
4079 count=0;
4080 while (1) {
4081 /* get/clear interrupt status bits */
4082 stat=btread(BT848_INT_STAT);
4083 astat=stat&btread(BT848_INT_MASK);
4084 if (!astat)
4085 break;
4086 handled = 1;
4087 btwrite(stat,BT848_INT_STAT);
4088
4089 /* get device status bits */
4090 dstat=btread(BT848_DSTATUS);
4091
4092 if (irq_debug) {
4093 printk(KERN_DEBUG "bttv%d: irq loop=%d fc=%d "
4094 "riscs=%x, riscc=%08x, ",
4095 btv->c.nr, count, btv->field_count,
4096 stat>>28, btread(BT848_RISC_COUNT));
4097 bttv_print_irqbits(stat,astat);
4098 if (stat & BT848_INT_HLOCK)
4099 printk(" HLOC => %s", (dstat & BT848_DSTATUS_HLOC)
4100 ? "yes" : "no");
4101 if (stat & BT848_INT_VPRES)
4102 printk(" PRES => %s", (dstat & BT848_DSTATUS_PRES)
4103 ? "yes" : "no");
4104 if (stat & BT848_INT_FMTCHG)
4105 printk(" NUML => %s", (dstat & BT848_DSTATUS_NUML)
4106 ? "625" : "525");
4107 printk("\n");
4108 }
4109
4110 if (astat&BT848_INT_VSYNC)
4111 btv->field_count++;
4112
4113 if ((astat & BT848_INT_GPINT) && btv->remote) {
4114 wake_up(&btv->gpioq);
4115 bttv_input_irq(btv);
4116 }
4117
4118 if (astat & BT848_INT_I2CDONE) {
4119 btv->i2c_done = stat;
4120 wake_up(&btv->i2c_queue);
4121 }
4122
4123 if ((astat & BT848_INT_RISCI) && (stat & (4<<28)))
4124 bttv_irq_switch_vbi(btv);
4125
4126 if ((astat & BT848_INT_RISCI) && (stat & (2<<28)))
4127 bttv_irq_wakeup_top(btv);
4128
4129 if ((astat & BT848_INT_RISCI) && (stat & (1<<28)))
4130 bttv_irq_switch_video(btv);
4131
4132 if ((astat & BT848_INT_HLOCK) && btv->opt_automute)
4133 audio_mute(btv, btv->mute); /* trigger automute */
4134
4135 if (astat & (BT848_INT_SCERR|BT848_INT_OCERR)) {
4136 printk(KERN_INFO "bttv%d: %s%s @ %08x,",btv->c.nr,
4137 (astat & BT848_INT_SCERR) ? "SCERR" : "",
4138 (astat & BT848_INT_OCERR) ? "OCERR" : "",
4139 btread(BT848_RISC_COUNT));
4140 bttv_print_irqbits(stat,astat);
4141 printk("\n");
4142 if (bttv_debug)
4143 bttv_print_riscaddr(btv);
4144 }
4145 if (fdsr && astat & BT848_INT_FDSR) {
4146 printk(KERN_INFO "bttv%d: FDSR @ %08x\n",
4147 btv->c.nr,btread(BT848_RISC_COUNT));
4148 if (bttv_debug)
4149 bttv_print_riscaddr(btv);
4150 }
4151
4152 count++;
4153 if (count > 4) {
4154
4155 if (count > 8 || !(astat & BT848_INT_GPINT)) {
4156 btwrite(0, BT848_INT_MASK);
4157
4158 printk(KERN_ERR
4159 "bttv%d: IRQ lockup, cleared int mask [", btv->c.nr);
4160 } else {
4161 printk(KERN_ERR
4162 "bttv%d: IRQ lockup, clearing GPINT from int mask [", btv->c.nr);
4163
4164 btwrite(btread(BT848_INT_MASK) & (-1 ^ BT848_INT_GPINT),
4165 BT848_INT_MASK);
4166 };
4167
4168 bttv_print_irqbits(stat,astat);
4169
4170 printk("]\n");
4171 }
4172 }
4173 btv->irq_total++;
4174 if (handled)
4175 btv->irq_me++;
4176 return IRQ_RETVAL(handled);
4177 }
4178
4179
4180 /* ----------------------------------------------------------------------- */
4181 /* initialitation */
4182
4183 static struct video_device *vdev_init(struct bttv *btv,
4184 const struct video_device *template,
4185 const char *type_name,
4186 const int type)
4187 {
4188 struct video_device *vfd;
4189
4190 vfd = video_device_alloc();
4191 if (NULL == vfd)
4192 return NULL;
4193 *vfd = *template;
4194 vfd->minor = -1;
4195 vfd->parent = &btv->c.pci->dev;
4196 vfd->release = video_device_release;
4197 vfd->type = type;
4198 vfd->debug = bttv_debug;
4199 snprintf(vfd->name, sizeof(vfd->name), "BT%d%s %s (%s)",
4200 btv->id, (btv->id==848 && btv->revision==0x12) ? "A" : "",
4201 type_name, bttv_tvcards[btv->c.type].name);
4202 return vfd;
4203 }
4204
4205 static void bttv_unregister_video(struct bttv *btv)
4206 {
4207 if (btv->video_dev) {
4208 if (-1 != btv->video_dev->minor)
4209 video_unregister_device(btv->video_dev);
4210 else
4211 video_device_release(btv->video_dev);
4212 btv->video_dev = NULL;
4213 }
4214 if (btv->vbi_dev) {
4215 if (-1 != btv->vbi_dev->minor)
4216 video_unregister_device(btv->vbi_dev);
4217 else
4218 video_device_release(btv->vbi_dev);
4219 btv->vbi_dev = NULL;
4220 }
4221 if (btv->radio_dev) {
4222 if (-1 != btv->radio_dev->minor)
4223 video_unregister_device(btv->radio_dev);
4224 else
4225 video_device_release(btv->radio_dev);
4226 btv->radio_dev = NULL;
4227 }
4228 }
4229
4230 /* register video4linux devices */
4231 static int __devinit bttv_register_video(struct bttv *btv)
4232 {
4233 int video_type = VID_TYPE_CAPTURE |
4234 VID_TYPE_TUNER |
4235 VID_TYPE_CLIPPING|
4236 VID_TYPE_SCALES;
4237
4238 if (no_overlay <= 0) {
4239 bttv_video_template.type |= VID_TYPE_OVERLAY;
4240 } else {
4241 printk("bttv: Overlay support disabled.\n");
4242 }
4243
4244 /* video */
4245 btv->video_dev = vdev_init(btv, &bttv_video_template,
4246 "video", video_type);
4247
4248 if (NULL == btv->video_dev)
4249 goto err;
4250 if (video_register_device(btv->video_dev,VFL_TYPE_GRABBER,video_nr)<0)
4251 goto err;
4252 printk(KERN_INFO "bttv%d: registered device video%d\n",
4253 btv->c.nr,btv->video_dev->minor & 0x1f);
4254 if (device_create_file(&btv->video_dev->dev,
4255 &dev_attr_card)<0) {
4256 printk(KERN_ERR "bttv%d: device_create_file 'card' "
4257 "failed\n", btv->c.nr);
4258 goto err;
4259 }
4260
4261 /* vbi */
4262 btv->vbi_dev = vdev_init(btv, &bttv_video_template,
4263 "vbi", VID_TYPE_TUNER | VID_TYPE_TELETEXT);
4264
4265 if (NULL == btv->vbi_dev)
4266 goto err;
4267 if (video_register_device(btv->vbi_dev,VFL_TYPE_VBI,vbi_nr)<0)
4268 goto err;
4269 printk(KERN_INFO "bttv%d: registered device vbi%d\n",
4270 btv->c.nr,btv->vbi_dev->minor & 0x1f);
4271
4272 if (!btv->has_radio)
4273 return 0;
4274 /* radio */
4275 btv->radio_dev = vdev_init(btv, &radio_template,
4276 "radio", VID_TYPE_TUNER);
4277 if (NULL == btv->radio_dev)
4278 goto err;
4279 if (video_register_device(btv->radio_dev, VFL_TYPE_RADIO,radio_nr)<0)
4280 goto err;
4281 printk(KERN_INFO "bttv%d: registered device radio%d\n",
4282 btv->c.nr,btv->radio_dev->minor & 0x1f);
4283
4284 /* all done */
4285 return 0;
4286
4287 err:
4288 bttv_unregister_video(btv);
4289 return -1;
4290 }
4291
4292
4293 /* on OpenFirmware machines (PowerMac at least), PCI memory cycle */
4294 /* response on cards with no firmware is not enabled by OF */
4295 static void pci_set_command(struct pci_dev *dev)
4296 {
4297 #if defined(__powerpc__)
4298 unsigned int cmd;
4299
4300 pci_read_config_dword(dev, PCI_COMMAND, &cmd);
4301 cmd = (cmd | PCI_COMMAND_MEMORY );
4302 pci_write_config_dword(dev, PCI_COMMAND, cmd);
4303 #endif
4304 }
4305
4306 static int __devinit bttv_probe(struct pci_dev *dev,
4307 const struct pci_device_id *pci_id)
4308 {
4309 int result;
4310 unsigned char lat;
4311 struct bttv *btv;
4312
4313 if (bttv_num == BTTV_MAX)
4314 return -ENOMEM;
4315 printk(KERN_INFO "bttv: Bt8xx card found (%d).\n", bttv_num);
4316 btv=&bttvs[bttv_num];
4317 memset(btv,0,sizeof(*btv));
4318 btv->c.nr = bttv_num;
4319 sprintf(btv->c.name,"bttv%d",btv->c.nr);
4320
4321 /* initialize structs / fill in defaults */
4322 mutex_init(&btv->lock);
4323 spin_lock_init(&btv->s_lock);
4324 spin_lock_init(&btv->gpio_lock);
4325 init_waitqueue_head(&btv->gpioq);
4326 init_waitqueue_head(&btv->i2c_queue);
4327 INIT_LIST_HEAD(&btv->c.subs);
4328 INIT_LIST_HEAD(&btv->capture);
4329 INIT_LIST_HEAD(&btv->vcapture);
4330 v4l2_prio_init(&btv->prio);
4331
4332 init_timer(&btv->timeout);
4333 btv->timeout.function = bttv_irq_timeout;
4334 btv->timeout.data = (unsigned long)btv;
4335
4336 btv->i2c_rc = -1;
4337 btv->tuner_type = UNSET;
4338 btv->new_input = UNSET;
4339 btv->has_radio=radio[btv->c.nr];
4340
4341 /* pci stuff (init, get irq/mmio, ... */
4342 btv->c.pci = dev;
4343 btv->id = dev->device;
4344 if (pci_enable_device(dev)) {
4345 printk(KERN_WARNING "bttv%d: Can't enable device.\n",
4346 btv->c.nr);
4347 return -EIO;
4348 }
4349 if (pci_set_dma_mask(dev, DMA_32BIT_MASK)) {
4350 printk(KERN_WARNING "bttv%d: No suitable DMA available.\n",
4351 btv->c.nr);
4352 return -EIO;
4353 }
4354 if (!request_mem_region(pci_resource_start(dev,0),
4355 pci_resource_len(dev,0),
4356 btv->c.name)) {
4357 printk(KERN_WARNING "bttv%d: can't request iomem (0x%llx).\n",
4358 btv->c.nr,
4359 (unsigned long long)pci_resource_start(dev,0));
4360 return -EBUSY;
4361 }
4362 pci_set_master(dev);
4363 pci_set_command(dev);
4364 pci_set_drvdata(dev,btv);
4365
4366 pci_read_config_byte(dev, PCI_CLASS_REVISION, &btv->revision);
4367 pci_read_config_byte(dev, PCI_LATENCY_TIMER, &lat);
4368 printk(KERN_INFO "bttv%d: Bt%d (rev %d) at %s, ",
4369 bttv_num,btv->id, btv->revision, pci_name(dev));
4370 printk("irq: %d, latency: %d, mmio: 0x%llx\n",
4371 btv->c.pci->irq, lat,
4372 (unsigned long long)pci_resource_start(dev,0));
4373 schedule();
4374
4375 btv->bt848_mmio = ioremap(pci_resource_start(dev, 0), 0x1000);
4376 if (NULL == btv->bt848_mmio) {
4377 printk("bttv%d: ioremap() failed\n", btv->c.nr);
4378 result = -EIO;
4379 goto fail1;
4380 }
4381
4382 /* identify card */
4383 bttv_idcard(btv);
4384
4385 /* disable irqs, register irq handler */
4386 btwrite(0, BT848_INT_MASK);
4387 result = request_irq(btv->c.pci->irq, bttv_irq,
4388 IRQF_SHARED | IRQF_DISABLED,btv->c.name,(void *)btv);
4389 if (result < 0) {
4390 printk(KERN_ERR "bttv%d: can't get IRQ %d\n",
4391 bttv_num,btv->c.pci->irq);
4392 goto fail1;
4393 }
4394
4395 if (0 != bttv_handle_chipset(btv)) {
4396 result = -EIO;
4397 goto fail2;
4398 }
4399
4400 /* init options from insmod args */
4401 btv->opt_combfilter = combfilter;
4402 btv->opt_lumafilter = lumafilter;
4403 btv->opt_automute = automute;
4404 btv->opt_chroma_agc = chroma_agc;
4405 btv->opt_adc_crush = adc_crush;
4406 btv->opt_vcr_hack = vcr_hack;
4407 btv->opt_whitecrush_upper = whitecrush_upper;
4408 btv->opt_whitecrush_lower = whitecrush_lower;
4409 btv->opt_uv_ratio = uv_ratio;
4410 btv->opt_full_luma_range = full_luma_range;
4411 btv->opt_coring = coring;
4412
4413 /* fill struct bttv with some useful defaults */
4414 btv->init.btv = btv;
4415 btv->init.ov.w.width = 320;
4416 btv->init.ov.w.height = 240;
4417 btv->init.fmt = format_by_fourcc(V4L2_PIX_FMT_BGR24);
4418 btv->init.width = 320;
4419 btv->init.height = 240;
4420 btv->input = 0;
4421
4422 /* initialize hardware */
4423 if (bttv_gpio)
4424 bttv_gpio_tracking(btv,"pre-init");
4425
4426 bttv_risc_init_main(btv);
4427 init_bt848(btv);
4428
4429 /* gpio */
4430 btwrite(0x00, BT848_GPIO_REG_INP);
4431 btwrite(0x00, BT848_GPIO_OUT_EN);
4432 if (bttv_verbose)
4433 bttv_gpio_tracking(btv,"init");
4434
4435 /* needs to be done before i2c is registered */
4436 bttv_init_card1(btv);
4437
4438 /* register i2c + gpio */
4439 init_bttv_i2c(btv);
4440
4441 /* some card-specific stuff (needs working i2c) */
4442 bttv_init_card2(btv);
4443 init_irqreg(btv);
4444
4445 /* register video4linux + input */
4446 if (!bttv_tvcards[btv->c.type].no_video) {
4447 bttv_register_video(btv);
4448 bt848_bright(btv,32768);
4449 bt848_contrast(btv,32768);
4450 bt848_hue(btv,32768);
4451 bt848_sat(btv,32768);
4452 audio_mute(btv, 1);
4453 set_input(btv, 0, btv->tvnorm);
4454 bttv_crop_reset(&btv->crop[0], btv->tvnorm);
4455 btv->crop[1] = btv->crop[0]; /* current = default */
4456 disclaim_vbi_lines(btv);
4457 disclaim_video_lines(btv);
4458 }
4459
4460 /* add subdevices and autoload dvb-bt8xx if needed */
4461 if (bttv_tvcards[btv->c.type].has_dvb) {
4462 bttv_sub_add_device(&btv->c, "dvb");
4463 request_modules(btv);
4464 }
4465
4466 bttv_input_init(btv);
4467
4468 /* everything is fine */
4469 bttv_num++;
4470 return 0;
4471
4472 fail2:
4473 free_irq(btv->c.pci->irq,btv);
4474
4475 fail1:
4476 if (btv->bt848_mmio)
4477 iounmap(btv->bt848_mmio);
4478 release_mem_region(pci_resource_start(btv->c.pci,0),
4479 pci_resource_len(btv->c.pci,0));
4480 pci_set_drvdata(dev,NULL);
4481 return result;
4482 }
4483
4484 static void __devexit bttv_remove(struct pci_dev *pci_dev)
4485 {
4486 struct bttv *btv = pci_get_drvdata(pci_dev);
4487
4488 if (bttv_verbose)
4489 printk("bttv%d: unloading\n",btv->c.nr);
4490
4491 /* shutdown everything (DMA+IRQs) */
4492 btand(~15, BT848_GPIO_DMA_CTL);
4493 btwrite(0, BT848_INT_MASK);
4494 btwrite(~0x0, BT848_INT_STAT);
4495 btwrite(0x0, BT848_GPIO_OUT_EN);
4496 if (bttv_gpio)
4497 bttv_gpio_tracking(btv,"cleanup");
4498
4499 /* tell gpio modules we are leaving ... */
4500 btv->shutdown=1;
4501 wake_up(&btv->gpioq);
4502 bttv_input_fini(btv);
4503 bttv_sub_del_devices(&btv->c);
4504
4505 /* unregister i2c_bus + input */
4506 fini_bttv_i2c(btv);
4507
4508 /* unregister video4linux */
4509 bttv_unregister_video(btv);
4510
4511 /* free allocated memory */
4512 btcx_riscmem_free(btv->c.pci,&btv->main);
4513
4514 /* free ressources */
4515 free_irq(btv->c.pci->irq,btv);
4516 iounmap(btv->bt848_mmio);
4517 release_mem_region(pci_resource_start(btv->c.pci,0),
4518 pci_resource_len(btv->c.pci,0));
4519
4520 pci_set_drvdata(pci_dev, NULL);
4521 return;
4522 }
4523
4524 #ifdef CONFIG_PM
4525 static int bttv_suspend(struct pci_dev *pci_dev, pm_message_t state)
4526 {
4527 struct bttv *btv = pci_get_drvdata(pci_dev);
4528 struct bttv_buffer_set idle;
4529 unsigned long flags;
4530
4531 dprintk("bttv%d: suspend %d\n", btv->c.nr, state.event);
4532
4533 /* stop dma + irqs */
4534 spin_lock_irqsave(&btv->s_lock,flags);
4535 memset(&idle, 0, sizeof(idle));
4536 btv->state.video = btv->curr;
4537 btv->state.vbi = btv->cvbi;
4538 btv->state.loop_irq = btv->loop_irq;
4539 btv->curr = idle;
4540 btv->loop_irq = 0;
4541 bttv_buffer_activate_video(btv, &idle);
4542 bttv_buffer_activate_vbi(btv, NULL);
4543 bttv_set_dma(btv, 0);
4544 btwrite(0, BT848_INT_MASK);
4545 spin_unlock_irqrestore(&btv->s_lock,flags);
4546
4547 /* save bt878 state */
4548 btv->state.gpio_enable = btread(BT848_GPIO_OUT_EN);
4549 btv->state.gpio_data = gpio_read();
4550
4551 /* save pci state */
4552 pci_save_state(pci_dev);
4553 if (0 != pci_set_power_state(pci_dev, pci_choose_state(pci_dev, state))) {
4554 pci_disable_device(pci_dev);
4555 btv->state.disabled = 1;
4556 }
4557 return 0;
4558 }
4559
4560 static int bttv_resume(struct pci_dev *pci_dev)
4561 {
4562 struct bttv *btv = pci_get_drvdata(pci_dev);
4563 unsigned long flags;
4564 int err;
4565
4566 dprintk("bttv%d: resume\n", btv->c.nr);
4567
4568 /* restore pci state */
4569 if (btv->state.disabled) {
4570 err=pci_enable_device(pci_dev);
4571 if (err) {
4572 printk(KERN_WARNING "bttv%d: Can't enable device.\n",
4573 btv->c.nr);
4574 return err;
4575 }
4576 btv->state.disabled = 0;
4577 }
4578 err=pci_set_power_state(pci_dev, PCI_D0);
4579 if (err) {
4580 pci_disable_device(pci_dev);
4581 printk(KERN_WARNING "bttv%d: Can't enable device.\n",
4582 btv->c.nr);
4583 btv->state.disabled = 1;
4584 return err;
4585 }
4586
4587 pci_restore_state(pci_dev);
4588
4589 /* restore bt878 state */
4590 bttv_reinit_bt848(btv);
4591 gpio_inout(0xffffff, btv->state.gpio_enable);
4592 gpio_write(btv->state.gpio_data);
4593
4594 /* restart dma */
4595 spin_lock_irqsave(&btv->s_lock,flags);
4596 btv->curr = btv->state.video;
4597 btv->cvbi = btv->state.vbi;
4598 btv->loop_irq = btv->state.loop_irq;
4599 bttv_buffer_activate_video(btv, &btv->curr);
4600 bttv_buffer_activate_vbi(btv, btv->cvbi);
4601 bttv_set_dma(btv, 0);
4602 spin_unlock_irqrestore(&btv->s_lock,flags);
4603 return 0;
4604 }
4605 #endif
4606
4607 static struct pci_device_id bttv_pci_tbl[] = {
4608 {PCI_VENDOR_ID_BROOKTREE, PCI_DEVICE_ID_BT848,
4609 PCI_ANY_ID, PCI_ANY_ID, 0, 0, 0},
4610 {PCI_VENDOR_ID_BROOKTREE, PCI_DEVICE_ID_BT849,
4611 PCI_ANY_ID, PCI_ANY_ID, 0, 0, 0},
4612 {PCI_VENDOR_ID_BROOKTREE, PCI_DEVICE_ID_BT878,
4613 PCI_ANY_ID, PCI_ANY_ID, 0, 0, 0},
4614 {PCI_VENDOR_ID_BROOKTREE, PCI_DEVICE_ID_BT879,
4615 PCI_ANY_ID, PCI_ANY_ID, 0, 0, 0},
4616 {0,}
4617 };
4618
4619 MODULE_DEVICE_TABLE(pci, bttv_pci_tbl);
4620
4621 static struct pci_driver bttv_pci_driver = {
4622 .name = "bttv",
4623 .id_table = bttv_pci_tbl,
4624 .probe = bttv_probe,
4625 .remove = __devexit_p(bttv_remove),
4626 #ifdef CONFIG_PM
4627 .suspend = bttv_suspend,
4628 .resume = bttv_resume,
4629 #endif
4630 };
4631
4632 static int __init bttv_init_module(void)
4633 {
4634 int ret;
4635
4636 bttv_num = 0;
4637
4638 printk(KERN_INFO "bttv: driver version %d.%d.%d loaded\n",
4639 (BTTV_VERSION_CODE >> 16) & 0xff,
4640 (BTTV_VERSION_CODE >> 8) & 0xff,
4641 BTTV_VERSION_CODE & 0xff);
4642 #ifdef SNAPSHOT
4643 printk(KERN_INFO "bttv: snapshot date %04d-%02d-%02d\n",
4644 SNAPSHOT/10000, (SNAPSHOT/100)%100, SNAPSHOT%100);
4645 #endif
4646 if (gbuffers < 2 || gbuffers > VIDEO_MAX_FRAME)
4647 gbuffers = 2;
4648 if (gbufsize < 0 || gbufsize > BTTV_MAX_FBUF)
4649 gbufsize = BTTV_MAX_FBUF;
4650 gbufsize = (gbufsize + PAGE_SIZE - 1) & PAGE_MASK;
4651 if (bttv_verbose)
4652 printk(KERN_INFO "bttv: using %d buffers with %dk (%d pages) each for capture\n",
4653 gbuffers, gbufsize >> 10, gbufsize >> PAGE_SHIFT);
4654
4655 bttv_check_chipset();
4656
4657 ret = bus_register(&bttv_sub_bus_type);
4658 if (ret < 0) {
4659 printk(KERN_WARNING "bttv: bus_register error: %d\n", ret);
4660 return ret;
4661 }
4662 ret = pci_register_driver(&bttv_pci_driver);
4663 if (ret < 0)
4664 bus_unregister(&bttv_sub_bus_type);
4665
4666 return ret;
4667 }
4668
4669 static void __exit bttv_cleanup_module(void)
4670 {
4671 pci_unregister_driver(&bttv_pci_driver);
4672 bus_unregister(&bttv_sub_bus_type);
4673 }
4674
4675 module_init(bttv_init_module);
4676 module_exit(bttv_cleanup_module);
4677
4678 /*
4679 * Local variables:
4680 * c-basic-offset: 8
4681 * End:
4682 */
AMDTP streaming driver for the Linux FireWire stack (Juju)