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V4L/DVB (10135): v4l2: introduce v4l2_file_operations.
[GitHub/mt8127/android_kernel_alcatel_ttab.git] / drivers / media / video / bt8xx / bttv-driver.c
1 /*
2
3 bttv - Bt848 frame grabber driver
4
5 Copyright (C) 1996,97,98 Ralph Metzler <rjkm@thp.uni-koeln.de>
6 & Marcus Metzler <mocm@thp.uni-koeln.de>
7 (c) 1999-2002 Gerd Knorr <kraxel@bytesex.org>
8
9 some v4l2 code lines are taken from Justin's bttv2 driver which is
10 (c) 2000 Justin Schoeman <justin@suntiger.ee.up.ac.za>
11
12 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[BTTV_MAX] = { [0 ... (BTTV_MAX-1)] = -1 };
80 static int radio_nr[BTTV_MAX] = { [0 ... (BTTV_MAX-1)] = -1 };
81 static int vbi_nr[BTTV_MAX] = { [0 ... (BTTV_MAX-1)] = -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
100 /* API features (turn on/off stuff for testing) */
101 static unsigned int v4l2 = 1;
102
103 /* insmod args */
104 module_param(bttv_verbose, int, 0644);
105 module_param(bttv_gpio, int, 0644);
106 module_param(bttv_debug, int, 0644);
107 module_param(irq_debug, int, 0644);
108 module_param(debug_latency, int, 0644);
109
110 module_param(fdsr, int, 0444);
111 module_param(gbuffers, int, 0444);
112 module_param(gbufsize, int, 0444);
113 module_param(reset_crop, int, 0444);
114
115 module_param(v4l2, int, 0644);
116 module_param(bigendian, int, 0644);
117 module_param(irq_iswitch, int, 0644);
118 module_param(combfilter, int, 0444);
119 module_param(lumafilter, int, 0444);
120 module_param(automute, int, 0444);
121 module_param(chroma_agc, int, 0444);
122 module_param(adc_crush, int, 0444);
123 module_param(whitecrush_upper, int, 0444);
124 module_param(whitecrush_lower, int, 0444);
125 module_param(vcr_hack, int, 0444);
126 module_param(uv_ratio, int, 0444);
127 module_param(full_luma_range, int, 0444);
128 module_param(coring, int, 0444);
129
130 module_param_array(radio, int, NULL, 0444);
131 module_param_array(video_nr, int, NULL, 0444);
132 module_param_array(radio_nr, int, NULL, 0444);
133 module_param_array(vbi_nr, int, NULL, 0444);
134
135 MODULE_PARM_DESC(radio,"The TV card supports radio, default is 0 (no)");
136 MODULE_PARM_DESC(bigendian,"byte order of the framebuffer, default is native endian");
137 MODULE_PARM_DESC(bttv_verbose,"verbose startup messages, default is 1 (yes)");
138 MODULE_PARM_DESC(bttv_gpio,"log gpio changes, default is 0 (no)");
139 MODULE_PARM_DESC(bttv_debug,"debug messages, default is 0 (no)");
140 MODULE_PARM_DESC(irq_debug,"irq handler debug messages, default is 0 (no)");
141 MODULE_PARM_DESC(gbuffers,"number of capture buffers. range 2-32, default 8");
142 MODULE_PARM_DESC(gbufsize,"size of the capture buffers, default is 0x208000");
143 MODULE_PARM_DESC(reset_crop,"reset cropping parameters at open(), default "
144 "is 1 (yes) for compatibility with older applications");
145 MODULE_PARM_DESC(automute,"mute audio on bad/missing video signal, default is 1 (yes)");
146 MODULE_PARM_DESC(chroma_agc,"enables the AGC of chroma signal, default is 0 (no)");
147 MODULE_PARM_DESC(adc_crush,"enables the luminance ADC crush, default is 1 (yes)");
148 MODULE_PARM_DESC(whitecrush_upper,"sets the white crush upper value, default is 207");
149 MODULE_PARM_DESC(whitecrush_lower,"sets the white crush lower value, default is 127");
150 MODULE_PARM_DESC(vcr_hack,"enables the VCR hack (improves synch on poor VCR tapes), default is 0 (no)");
151 MODULE_PARM_DESC(irq_iswitch,"switch inputs in irq handler");
152 MODULE_PARM_DESC(uv_ratio,"ratio between u and v gains, default is 50");
153 MODULE_PARM_DESC(full_luma_range,"use the full luma range, default is 0 (no)");
154 MODULE_PARM_DESC(coring,"set the luma coring level, default is 0 (no)");
155 MODULE_PARM_DESC(video_nr, "video device numbers");
156 MODULE_PARM_DESC(vbi_nr, "vbi device numbers");
157 MODULE_PARM_DESC(radio_nr, "radio device numbers");
158
159 MODULE_DESCRIPTION("bttv - v4l/v4l2 driver module for bt848/878 based cards");
160 MODULE_AUTHOR("Ralph Metzler & Marcus Metzler & Gerd Knorr");
161 MODULE_LICENSE("GPL");
162
163 /* ----------------------------------------------------------------------- */
164 /* sysfs */
165
166 static ssize_t show_card(struct device *cd,
167 struct device_attribute *attr, char *buf)
168 {
169 struct video_device *vfd = container_of(cd, struct video_device, dev);
170 struct bttv *btv = dev_get_drvdata(vfd->parent);
171 return sprintf(buf, "%d\n", btv ? btv->c.type : UNSET);
172 }
173 static DEVICE_ATTR(card, S_IRUGO, show_card, NULL);
174
175 /* ----------------------------------------------------------------------- */
176 /* dvb auto-load setup */
177 #if defined(CONFIG_MODULES) && defined(MODULE)
178 static void request_module_async(struct work_struct *work)
179 {
180 request_module("dvb-bt8xx");
181 }
182
183 static void request_modules(struct bttv *dev)
184 {
185 INIT_WORK(&dev->request_module_wk, request_module_async);
186 schedule_work(&dev->request_module_wk);
187 }
188 #else
189 #define request_modules(dev)
190 #endif /* CONFIG_MODULES */
191
192
193 /* ----------------------------------------------------------------------- */
194 /* static data */
195
196 /* special timing tables from conexant... */
197 static u8 SRAM_Table[][60] =
198 {
199 /* PAL digital input over GPIO[7:0] */
200 {
201 45, // 45 bytes following
202 0x36,0x11,0x01,0x00,0x90,0x02,0x05,0x10,0x04,0x16,
203 0x12,0x05,0x11,0x00,0x04,0x12,0xC0,0x00,0x31,0x00,
204 0x06,0x51,0x08,0x03,0x89,0x08,0x07,0xC0,0x44,0x00,
205 0x81,0x01,0x01,0xA9,0x0D,0x02,0x02,0x50,0x03,0x37,
206 0x37,0x00,0xAF,0x21,0x00
207 },
208 /* NTSC digital input over GPIO[7:0] */
209 {
210 51, // 51 bytes following
211 0x0C,0xC0,0x00,0x00,0x90,0x02,0x03,0x10,0x03,0x06,
212 0x10,0x04,0x12,0x12,0x05,0x02,0x13,0x04,0x19,0x00,
213 0x04,0x39,0x00,0x06,0x59,0x08,0x03,0x83,0x08,0x07,
214 0x03,0x50,0x00,0xC0,0x40,0x00,0x86,0x01,0x01,0xA6,
215 0x0D,0x02,0x03,0x11,0x01,0x05,0x37,0x00,0xAC,0x21,
216 0x00,
217 },
218 // TGB_NTSC392 // quartzsight
219 // This table has been modified to be used for Fusion Rev D
220 {
221 0x2A, // size of table = 42
222 0x06, 0x08, 0x04, 0x0a, 0xc0, 0x00, 0x18, 0x08, 0x03, 0x24,
223 0x08, 0x07, 0x02, 0x90, 0x02, 0x08, 0x10, 0x04, 0x0c, 0x10,
224 0x05, 0x2c, 0x11, 0x04, 0x55, 0x48, 0x00, 0x05, 0x50, 0x00,
225 0xbf, 0x0c, 0x02, 0x2f, 0x3d, 0x00, 0x2f, 0x3f, 0x00, 0xc3,
226 0x20, 0x00
227 }
228 };
229
230 /* minhdelayx1 first video pixel we can capture on a line and
231 hdelayx1 start of active video, both relative to rising edge of
232 /HRESET pulse (0H) in 1 / fCLKx1.
233 swidth width of active video and
234 totalwidth total line width, both in 1 / fCLKx1.
235 sqwidth total line width in square pixels.
236 vdelay start of active video in 2 * field lines relative to
237 trailing edge of /VRESET pulse (VDELAY register).
238 sheight height of active video in 2 * field lines.
239 videostart0 ITU-R frame line number of the line corresponding
240 to vdelay in the first field. */
241 #define CROPCAP(minhdelayx1, hdelayx1, swidth, totalwidth, sqwidth, \
242 vdelay, sheight, videostart0) \
243 .cropcap.bounds.left = minhdelayx1, \
244 /* * 2 because vertically we count field lines times two, */ \
245 /* e.g. 23 * 2 to 23 * 2 + 576 in PAL-BGHI defrect. */ \
246 .cropcap.bounds.top = (videostart0) * 2 - (vdelay) + MIN_VDELAY, \
247 /* 4 is a safety margin at the end of the line. */ \
248 .cropcap.bounds.width = (totalwidth) - (minhdelayx1) - 4, \
249 .cropcap.bounds.height = (sheight) + (vdelay) - MIN_VDELAY, \
250 .cropcap.defrect.left = hdelayx1, \
251 .cropcap.defrect.top = (videostart0) * 2, \
252 .cropcap.defrect.width = swidth, \
253 .cropcap.defrect.height = sheight, \
254 .cropcap.pixelaspect.numerator = totalwidth, \
255 .cropcap.pixelaspect.denominator = sqwidth,
256
257 const struct bttv_tvnorm bttv_tvnorms[] = {
258 /* PAL-BDGHI */
259 /* max. active video is actually 922, but 924 is divisible by 4 and 3! */
260 /* actually, max active PAL with HSCALE=0 is 948, NTSC is 768 - nil */
261 {
262 .v4l2_id = V4L2_STD_PAL,
263 .name = "PAL",
264 .Fsc = 35468950,
265 .swidth = 924,
266 .sheight = 576,
267 .totalwidth = 1135,
268 .adelay = 0x7f,
269 .bdelay = 0x72,
270 .iform = (BT848_IFORM_PAL_BDGHI|BT848_IFORM_XT1),
271 .scaledtwidth = 1135,
272 .hdelayx1 = 186,
273 .hactivex1 = 924,
274 .vdelay = 0x20,
275 .vbipack = 255, /* min (2048 / 4, 0x1ff) & 0xff */
276 .sram = 0,
277 /* ITU-R frame line number of the first VBI line
278 we can capture, of the first and second field.
279 The last line is determined by cropcap.bounds. */
280 .vbistart = { 7, 320 },
281 CROPCAP(/* minhdelayx1 */ 68,
282 /* hdelayx1 */ 186,
283 /* Should be (768 * 1135 + 944 / 2) / 944.
284 cropcap.defrect is used for image width
285 checks, so we keep the old value 924. */
286 /* swidth */ 924,
287 /* totalwidth */ 1135,
288 /* sqwidth */ 944,
289 /* vdelay */ 0x20,
290 /* sheight */ 576,
291 /* videostart0 */ 23)
292 /* bt878 (and bt848?) can capture another
293 line below active video. */
294 .cropcap.bounds.height = (576 + 2) + 0x20 - 2,
295 },{
296 .v4l2_id = V4L2_STD_NTSC_M | V4L2_STD_NTSC_M_KR,
297 .name = "NTSC",
298 .Fsc = 28636363,
299 .swidth = 768,
300 .sheight = 480,
301 .totalwidth = 910,
302 .adelay = 0x68,
303 .bdelay = 0x5d,
304 .iform = (BT848_IFORM_NTSC|BT848_IFORM_XT0),
305 .scaledtwidth = 910,
306 .hdelayx1 = 128,
307 .hactivex1 = 910,
308 .vdelay = 0x1a,
309 .vbipack = 144, /* min (1600 / 4, 0x1ff) & 0xff */
310 .sram = 1,
311 .vbistart = { 10, 273 },
312 CROPCAP(/* minhdelayx1 */ 68,
313 /* hdelayx1 */ 128,
314 /* Should be (640 * 910 + 780 / 2) / 780? */
315 /* swidth */ 768,
316 /* totalwidth */ 910,
317 /* sqwidth */ 780,
318 /* vdelay */ 0x1a,
319 /* sheight */ 480,
320 /* videostart0 */ 23)
321 },{
322 .v4l2_id = V4L2_STD_SECAM,
323 .name = "SECAM",
324 .Fsc = 35468950,
325 .swidth = 924,
326 .sheight = 576,
327 .totalwidth = 1135,
328 .adelay = 0x7f,
329 .bdelay = 0xb0,
330 .iform = (BT848_IFORM_SECAM|BT848_IFORM_XT1),
331 .scaledtwidth = 1135,
332 .hdelayx1 = 186,
333 .hactivex1 = 922,
334 .vdelay = 0x20,
335 .vbipack = 255,
336 .sram = 0, /* like PAL, correct? */
337 .vbistart = { 7, 320 },
338 CROPCAP(/* minhdelayx1 */ 68,
339 /* hdelayx1 */ 186,
340 /* swidth */ 924,
341 /* totalwidth */ 1135,
342 /* sqwidth */ 944,
343 /* vdelay */ 0x20,
344 /* sheight */ 576,
345 /* videostart0 */ 23)
346 },{
347 .v4l2_id = V4L2_STD_PAL_Nc,
348 .name = "PAL-Nc",
349 .Fsc = 28636363,
350 .swidth = 640,
351 .sheight = 576,
352 .totalwidth = 910,
353 .adelay = 0x68,
354 .bdelay = 0x5d,
355 .iform = (BT848_IFORM_PAL_NC|BT848_IFORM_XT0),
356 .scaledtwidth = 780,
357 .hdelayx1 = 130,
358 .hactivex1 = 734,
359 .vdelay = 0x1a,
360 .vbipack = 144,
361 .sram = -1,
362 .vbistart = { 7, 320 },
363 CROPCAP(/* minhdelayx1 */ 68,
364 /* hdelayx1 */ 130,
365 /* swidth */ (640 * 910 + 780 / 2) / 780,
366 /* totalwidth */ 910,
367 /* sqwidth */ 780,
368 /* vdelay */ 0x1a,
369 /* sheight */ 576,
370 /* videostart0 */ 23)
371 },{
372 .v4l2_id = V4L2_STD_PAL_M,
373 .name = "PAL-M",
374 .Fsc = 28636363,
375 .swidth = 640,
376 .sheight = 480,
377 .totalwidth = 910,
378 .adelay = 0x68,
379 .bdelay = 0x5d,
380 .iform = (BT848_IFORM_PAL_M|BT848_IFORM_XT0),
381 .scaledtwidth = 780,
382 .hdelayx1 = 135,
383 .hactivex1 = 754,
384 .vdelay = 0x1a,
385 .vbipack = 144,
386 .sram = -1,
387 .vbistart = { 10, 273 },
388 CROPCAP(/* minhdelayx1 */ 68,
389 /* hdelayx1 */ 135,
390 /* swidth */ (640 * 910 + 780 / 2) / 780,
391 /* totalwidth */ 910,
392 /* sqwidth */ 780,
393 /* vdelay */ 0x1a,
394 /* sheight */ 480,
395 /* videostart0 */ 23)
396 },{
397 .v4l2_id = V4L2_STD_PAL_N,
398 .name = "PAL-N",
399 .Fsc = 35468950,
400 .swidth = 768,
401 .sheight = 576,
402 .totalwidth = 1135,
403 .adelay = 0x7f,
404 .bdelay = 0x72,
405 .iform = (BT848_IFORM_PAL_N|BT848_IFORM_XT1),
406 .scaledtwidth = 944,
407 .hdelayx1 = 186,
408 .hactivex1 = 922,
409 .vdelay = 0x20,
410 .vbipack = 144,
411 .sram = -1,
412 .vbistart = { 7, 320 },
413 CROPCAP(/* minhdelayx1 */ 68,
414 /* hdelayx1 */ 186,
415 /* swidth */ (768 * 1135 + 944 / 2) / 944,
416 /* totalwidth */ 1135,
417 /* sqwidth */ 944,
418 /* vdelay */ 0x20,
419 /* sheight */ 576,
420 /* videostart0 */ 23)
421 },{
422 .v4l2_id = V4L2_STD_NTSC_M_JP,
423 .name = "NTSC-JP",
424 .Fsc = 28636363,
425 .swidth = 640,
426 .sheight = 480,
427 .totalwidth = 910,
428 .adelay = 0x68,
429 .bdelay = 0x5d,
430 .iform = (BT848_IFORM_NTSC_J|BT848_IFORM_XT0),
431 .scaledtwidth = 780,
432 .hdelayx1 = 135,
433 .hactivex1 = 754,
434 .vdelay = 0x16,
435 .vbipack = 144,
436 .sram = -1,
437 .vbistart = { 10, 273 },
438 CROPCAP(/* minhdelayx1 */ 68,
439 /* hdelayx1 */ 135,
440 /* swidth */ (640 * 910 + 780 / 2) / 780,
441 /* totalwidth */ 910,
442 /* sqwidth */ 780,
443 /* vdelay */ 0x16,
444 /* sheight */ 480,
445 /* videostart0 */ 23)
446 },{
447 /* that one hopefully works with the strange timing
448 * which video recorders produce when playing a NTSC
449 * tape on a PAL TV ... */
450 .v4l2_id = V4L2_STD_PAL_60,
451 .name = "PAL-60",
452 .Fsc = 35468950,
453 .swidth = 924,
454 .sheight = 480,
455 .totalwidth = 1135,
456 .adelay = 0x7f,
457 .bdelay = 0x72,
458 .iform = (BT848_IFORM_PAL_BDGHI|BT848_IFORM_XT1),
459 .scaledtwidth = 1135,
460 .hdelayx1 = 186,
461 .hactivex1 = 924,
462 .vdelay = 0x1a,
463 .vbipack = 255,
464 .vtotal = 524,
465 .sram = -1,
466 .vbistart = { 10, 273 },
467 CROPCAP(/* minhdelayx1 */ 68,
468 /* hdelayx1 */ 186,
469 /* swidth */ 924,
470 /* totalwidth */ 1135,
471 /* sqwidth */ 944,
472 /* vdelay */ 0x1a,
473 /* sheight */ 480,
474 /* videostart0 */ 23)
475 }
476 };
477 static const unsigned int BTTV_TVNORMS = ARRAY_SIZE(bttv_tvnorms);
478
479 /* ----------------------------------------------------------------------- */
480 /* bttv format list
481 packed pixel formats must come first */
482 static const struct bttv_format formats[] = {
483 {
484 .name = "8 bpp, gray",
485 .fourcc = V4L2_PIX_FMT_GREY,
486 .btformat = BT848_COLOR_FMT_Y8,
487 .depth = 8,
488 .flags = FORMAT_FLAGS_PACKED,
489 },{
490 .name = "8 bpp, dithered color",
491 .fourcc = V4L2_PIX_FMT_HI240,
492 .btformat = BT848_COLOR_FMT_RGB8,
493 .depth = 8,
494 .flags = FORMAT_FLAGS_PACKED | FORMAT_FLAGS_DITHER,
495 },{
496 .name = "15 bpp RGB, le",
497 .fourcc = V4L2_PIX_FMT_RGB555,
498 .btformat = BT848_COLOR_FMT_RGB15,
499 .depth = 16,
500 .flags = FORMAT_FLAGS_PACKED,
501 },{
502 .name = "15 bpp RGB, be",
503 .fourcc = V4L2_PIX_FMT_RGB555X,
504 .btformat = BT848_COLOR_FMT_RGB15,
505 .btswap = 0x03, /* byteswap */
506 .depth = 16,
507 .flags = FORMAT_FLAGS_PACKED,
508 },{
509 .name = "16 bpp RGB, le",
510 .fourcc = V4L2_PIX_FMT_RGB565,
511 .btformat = BT848_COLOR_FMT_RGB16,
512 .depth = 16,
513 .flags = FORMAT_FLAGS_PACKED,
514 },{
515 .name = "16 bpp RGB, be",
516 .fourcc = V4L2_PIX_FMT_RGB565X,
517 .btformat = BT848_COLOR_FMT_RGB16,
518 .btswap = 0x03, /* byteswap */
519 .depth = 16,
520 .flags = FORMAT_FLAGS_PACKED,
521 },{
522 .name = "24 bpp RGB, le",
523 .fourcc = V4L2_PIX_FMT_BGR24,
524 .btformat = BT848_COLOR_FMT_RGB24,
525 .depth = 24,
526 .flags = FORMAT_FLAGS_PACKED,
527 },{
528 .name = "32 bpp RGB, le",
529 .fourcc = V4L2_PIX_FMT_BGR32,
530 .btformat = BT848_COLOR_FMT_RGB32,
531 .depth = 32,
532 .flags = FORMAT_FLAGS_PACKED,
533 },{
534 .name = "32 bpp RGB, be",
535 .fourcc = V4L2_PIX_FMT_RGB32,
536 .btformat = BT848_COLOR_FMT_RGB32,
537 .btswap = 0x0f, /* byte+word swap */
538 .depth = 32,
539 .flags = FORMAT_FLAGS_PACKED,
540 },{
541 .name = "4:2:2, packed, YUYV",
542 .fourcc = V4L2_PIX_FMT_YUYV,
543 .btformat = BT848_COLOR_FMT_YUY2,
544 .depth = 16,
545 .flags = FORMAT_FLAGS_PACKED,
546 },{
547 .name = "4:2:2, packed, YUYV",
548 .fourcc = V4L2_PIX_FMT_YUYV,
549 .btformat = BT848_COLOR_FMT_YUY2,
550 .depth = 16,
551 .flags = FORMAT_FLAGS_PACKED,
552 },{
553 .name = "4:2:2, packed, UYVY",
554 .fourcc = V4L2_PIX_FMT_UYVY,
555 .btformat = BT848_COLOR_FMT_YUY2,
556 .btswap = 0x03, /* byteswap */
557 .depth = 16,
558 .flags = FORMAT_FLAGS_PACKED,
559 },{
560 .name = "4:2:2, planar, Y-Cb-Cr",
561 .fourcc = V4L2_PIX_FMT_YUV422P,
562 .btformat = BT848_COLOR_FMT_YCrCb422,
563 .depth = 16,
564 .flags = FORMAT_FLAGS_PLANAR,
565 .hshift = 1,
566 .vshift = 0,
567 },{
568 .name = "4:2:0, planar, Y-Cb-Cr",
569 .fourcc = V4L2_PIX_FMT_YUV420,
570 .btformat = BT848_COLOR_FMT_YCrCb422,
571 .depth = 12,
572 .flags = FORMAT_FLAGS_PLANAR,
573 .hshift = 1,
574 .vshift = 1,
575 },{
576 .name = "4:2:0, planar, Y-Cr-Cb",
577 .fourcc = V4L2_PIX_FMT_YVU420,
578 .btformat = BT848_COLOR_FMT_YCrCb422,
579 .depth = 12,
580 .flags = FORMAT_FLAGS_PLANAR | FORMAT_FLAGS_CrCb,
581 .hshift = 1,
582 .vshift = 1,
583 },{
584 .name = "4:1:1, planar, Y-Cb-Cr",
585 .fourcc = V4L2_PIX_FMT_YUV411P,
586 .btformat = BT848_COLOR_FMT_YCrCb411,
587 .depth = 12,
588 .flags = FORMAT_FLAGS_PLANAR,
589 .hshift = 2,
590 .vshift = 0,
591 },{
592 .name = "4:1:0, planar, Y-Cb-Cr",
593 .fourcc = V4L2_PIX_FMT_YUV410,
594 .btformat = BT848_COLOR_FMT_YCrCb411,
595 .depth = 9,
596 .flags = FORMAT_FLAGS_PLANAR,
597 .hshift = 2,
598 .vshift = 2,
599 },{
600 .name = "4:1:0, planar, Y-Cr-Cb",
601 .fourcc = V4L2_PIX_FMT_YVU410,
602 .btformat = BT848_COLOR_FMT_YCrCb411,
603 .depth = 9,
604 .flags = FORMAT_FLAGS_PLANAR | FORMAT_FLAGS_CrCb,
605 .hshift = 2,
606 .vshift = 2,
607 },{
608 .name = "raw scanlines",
609 .fourcc = -1,
610 .btformat = BT848_COLOR_FMT_RAW,
611 .depth = 8,
612 .flags = FORMAT_FLAGS_RAW,
613 }
614 };
615 static const unsigned int FORMATS = ARRAY_SIZE(formats);
616
617 /* ----------------------------------------------------------------------- */
618
619 #define V4L2_CID_PRIVATE_CHROMA_AGC (V4L2_CID_PRIVATE_BASE + 0)
620 #define V4L2_CID_PRIVATE_COMBFILTER (V4L2_CID_PRIVATE_BASE + 1)
621 #define V4L2_CID_PRIVATE_AUTOMUTE (V4L2_CID_PRIVATE_BASE + 2)
622 #define V4L2_CID_PRIVATE_LUMAFILTER (V4L2_CID_PRIVATE_BASE + 3)
623 #define V4L2_CID_PRIVATE_AGC_CRUSH (V4L2_CID_PRIVATE_BASE + 4)
624 #define V4L2_CID_PRIVATE_VCR_HACK (V4L2_CID_PRIVATE_BASE + 5)
625 #define V4L2_CID_PRIVATE_WHITECRUSH_UPPER (V4L2_CID_PRIVATE_BASE + 6)
626 #define V4L2_CID_PRIVATE_WHITECRUSH_LOWER (V4L2_CID_PRIVATE_BASE + 7)
627 #define V4L2_CID_PRIVATE_UV_RATIO (V4L2_CID_PRIVATE_BASE + 8)
628 #define V4L2_CID_PRIVATE_FULL_LUMA_RANGE (V4L2_CID_PRIVATE_BASE + 9)
629 #define V4L2_CID_PRIVATE_CORING (V4L2_CID_PRIVATE_BASE + 10)
630 #define V4L2_CID_PRIVATE_LASTP1 (V4L2_CID_PRIVATE_BASE + 11)
631
632 static const struct v4l2_queryctrl no_ctl = {
633 .name = "42",
634 .flags = V4L2_CTRL_FLAG_DISABLED,
635 };
636 static const struct v4l2_queryctrl bttv_ctls[] = {
637 /* --- video --- */
638 {
639 .id = V4L2_CID_BRIGHTNESS,
640 .name = "Brightness",
641 .minimum = 0,
642 .maximum = 65535,
643 .step = 256,
644 .default_value = 32768,
645 .type = V4L2_CTRL_TYPE_INTEGER,
646 },{
647 .id = V4L2_CID_CONTRAST,
648 .name = "Contrast",
649 .minimum = 0,
650 .maximum = 65535,
651 .step = 128,
652 .default_value = 32768,
653 .type = V4L2_CTRL_TYPE_INTEGER,
654 },{
655 .id = V4L2_CID_SATURATION,
656 .name = "Saturation",
657 .minimum = 0,
658 .maximum = 65535,
659 .step = 128,
660 .default_value = 32768,
661 .type = V4L2_CTRL_TYPE_INTEGER,
662 },{
663 .id = V4L2_CID_HUE,
664 .name = "Hue",
665 .minimum = 0,
666 .maximum = 65535,
667 .step = 256,
668 .default_value = 32768,
669 .type = V4L2_CTRL_TYPE_INTEGER,
670 },
671 /* --- audio --- */
672 {
673 .id = V4L2_CID_AUDIO_MUTE,
674 .name = "Mute",
675 .minimum = 0,
676 .maximum = 1,
677 .type = V4L2_CTRL_TYPE_BOOLEAN,
678 },{
679 .id = V4L2_CID_AUDIO_VOLUME,
680 .name = "Volume",
681 .minimum = 0,
682 .maximum = 65535,
683 .step = 65535/100,
684 .default_value = 65535,
685 .type = V4L2_CTRL_TYPE_INTEGER,
686 },{
687 .id = V4L2_CID_AUDIO_BALANCE,
688 .name = "Balance",
689 .minimum = 0,
690 .maximum = 65535,
691 .step = 65535/100,
692 .default_value = 32768,
693 .type = V4L2_CTRL_TYPE_INTEGER,
694 },{
695 .id = V4L2_CID_AUDIO_BASS,
696 .name = "Bass",
697 .minimum = 0,
698 .maximum = 65535,
699 .step = 65535/100,
700 .default_value = 32768,
701 .type = V4L2_CTRL_TYPE_INTEGER,
702 },{
703 .id = V4L2_CID_AUDIO_TREBLE,
704 .name = "Treble",
705 .minimum = 0,
706 .maximum = 65535,
707 .step = 65535/100,
708 .default_value = 32768,
709 .type = V4L2_CTRL_TYPE_INTEGER,
710 },
711 /* --- private --- */
712 {
713 .id = V4L2_CID_PRIVATE_CHROMA_AGC,
714 .name = "chroma agc",
715 .minimum = 0,
716 .maximum = 1,
717 .type = V4L2_CTRL_TYPE_BOOLEAN,
718 },{
719 .id = V4L2_CID_PRIVATE_COMBFILTER,
720 .name = "combfilter",
721 .minimum = 0,
722 .maximum = 1,
723 .type = V4L2_CTRL_TYPE_BOOLEAN,
724 },{
725 .id = V4L2_CID_PRIVATE_AUTOMUTE,
726 .name = "automute",
727 .minimum = 0,
728 .maximum = 1,
729 .type = V4L2_CTRL_TYPE_BOOLEAN,
730 },{
731 .id = V4L2_CID_PRIVATE_LUMAFILTER,
732 .name = "luma decimation filter",
733 .minimum = 0,
734 .maximum = 1,
735 .type = V4L2_CTRL_TYPE_BOOLEAN,
736 },{
737 .id = V4L2_CID_PRIVATE_AGC_CRUSH,
738 .name = "agc crush",
739 .minimum = 0,
740 .maximum = 1,
741 .type = V4L2_CTRL_TYPE_BOOLEAN,
742 },{
743 .id = V4L2_CID_PRIVATE_VCR_HACK,
744 .name = "vcr hack",
745 .minimum = 0,
746 .maximum = 1,
747 .type = V4L2_CTRL_TYPE_BOOLEAN,
748 },{
749 .id = V4L2_CID_PRIVATE_WHITECRUSH_UPPER,
750 .name = "whitecrush upper",
751 .minimum = 0,
752 .maximum = 255,
753 .step = 1,
754 .default_value = 0xCF,
755 .type = V4L2_CTRL_TYPE_INTEGER,
756 },{
757 .id = V4L2_CID_PRIVATE_WHITECRUSH_LOWER,
758 .name = "whitecrush lower",
759 .minimum = 0,
760 .maximum = 255,
761 .step = 1,
762 .default_value = 0x7F,
763 .type = V4L2_CTRL_TYPE_INTEGER,
764 },{
765 .id = V4L2_CID_PRIVATE_UV_RATIO,
766 .name = "uv ratio",
767 .minimum = 0,
768 .maximum = 100,
769 .step = 1,
770 .default_value = 50,
771 .type = V4L2_CTRL_TYPE_INTEGER,
772 },{
773 .id = V4L2_CID_PRIVATE_FULL_LUMA_RANGE,
774 .name = "full luma range",
775 .minimum = 0,
776 .maximum = 1,
777 .type = V4L2_CTRL_TYPE_BOOLEAN,
778 },{
779 .id = V4L2_CID_PRIVATE_CORING,
780 .name = "coring",
781 .minimum = 0,
782 .maximum = 3,
783 .step = 1,
784 .default_value = 0,
785 .type = V4L2_CTRL_TYPE_INTEGER,
786 }
787
788
789
790 };
791
792 static const struct v4l2_queryctrl *ctrl_by_id(int id)
793 {
794 int i;
795
796 for (i = 0; i < ARRAY_SIZE(bttv_ctls); i++)
797 if (bttv_ctls[i].id == id)
798 return bttv_ctls+i;
799
800 return NULL;
801 }
802
803 /* ----------------------------------------------------------------------- */
804 /* resource management */
805
806 /*
807 RESOURCE_ allocated by freed by
808
809 VIDEO_READ bttv_read 1) bttv_read 2)
810
811 VIDEO_STREAM VIDIOC_STREAMON VIDIOC_STREAMOFF
812 VIDIOC_QBUF 1) bttv_release
813 VIDIOCMCAPTURE 1)
814
815 OVERLAY VIDIOCCAPTURE on VIDIOCCAPTURE off
816 VIDIOC_OVERLAY on VIDIOC_OVERLAY off
817 3) bttv_release
818
819 VBI VIDIOC_STREAMON VIDIOC_STREAMOFF
820 VIDIOC_QBUF 1) bttv_release
821 bttv_read, bttv_poll 1) 4)
822
823 1) The resource must be allocated when we enter buffer prepare functions
824 and remain allocated while buffers are in the DMA queue.
825 2) This is a single frame read.
826 3) VIDIOC_S_FBUF and VIDIOC_S_FMT (OVERLAY) still work when
827 RESOURCE_OVERLAY is allocated.
828 4) This is a continuous read, implies VIDIOC_STREAMON.
829
830 Note this driver permits video input and standard changes regardless if
831 resources are allocated.
832 */
833
834 #define VBI_RESOURCES (RESOURCE_VBI)
835 #define VIDEO_RESOURCES (RESOURCE_VIDEO_READ | \
836 RESOURCE_VIDEO_STREAM | \
837 RESOURCE_OVERLAY)
838
839 static
840 int check_alloc_btres(struct bttv *btv, struct bttv_fh *fh, int bit)
841 {
842 int xbits; /* mutual exclusive resources */
843
844 if (fh->resources & bit)
845 /* have it already allocated */
846 return 1;
847
848 xbits = bit;
849 if (bit & (RESOURCE_VIDEO_READ | RESOURCE_VIDEO_STREAM))
850 xbits |= RESOURCE_VIDEO_READ | RESOURCE_VIDEO_STREAM;
851
852 /* is it free? */
853 mutex_lock(&btv->lock);
854 if (btv->resources & xbits) {
855 /* no, someone else uses it */
856 goto fail;
857 }
858
859 if ((bit & VIDEO_RESOURCES)
860 && 0 == (btv->resources & VIDEO_RESOURCES)) {
861 /* Do crop - use current, don't - use default parameters. */
862 __s32 top = btv->crop[!!fh->do_crop].rect.top;
863
864 if (btv->vbi_end > top)
865 goto fail;
866
867 /* We cannot capture the same line as video and VBI data.
868 Claim scan lines crop[].rect.top to bottom. */
869 btv->crop_start = top;
870 } else if (bit & VBI_RESOURCES) {
871 __s32 end = fh->vbi_fmt.end;
872
873 if (end > btv->crop_start)
874 goto fail;
875
876 /* Claim scan lines above fh->vbi_fmt.end. */
877 btv->vbi_end = end;
878 }
879
880 /* it's free, grab it */
881 fh->resources |= bit;
882 btv->resources |= bit;
883 mutex_unlock(&btv->lock);
884 return 1;
885
886 fail:
887 mutex_unlock(&btv->lock);
888 return 0;
889 }
890
891 static
892 int check_btres(struct bttv_fh *fh, int bit)
893 {
894 return (fh->resources & bit);
895 }
896
897 static
898 int locked_btres(struct bttv *btv, int bit)
899 {
900 return (btv->resources & bit);
901 }
902
903 /* Call with btv->lock down. */
904 static void
905 disclaim_vbi_lines(struct bttv *btv)
906 {
907 btv->vbi_end = 0;
908 }
909
910 /* Call with btv->lock down. */
911 static void
912 disclaim_video_lines(struct bttv *btv)
913 {
914 const struct bttv_tvnorm *tvnorm;
915 u8 crop;
916
917 tvnorm = &bttv_tvnorms[btv->tvnorm];
918 btv->crop_start = tvnorm->cropcap.bounds.top
919 + tvnorm->cropcap.bounds.height;
920
921 /* VBI capturing ends at VDELAY, start of video capturing, no
922 matter how many lines the VBI RISC program expects. When video
923 capturing is off, it shall no longer "preempt" VBI capturing,
924 so we set VDELAY to maximum. */
925 crop = btread(BT848_E_CROP) | 0xc0;
926 btwrite(crop, BT848_E_CROP);
927 btwrite(0xfe, BT848_E_VDELAY_LO);
928 btwrite(crop, BT848_O_CROP);
929 btwrite(0xfe, BT848_O_VDELAY_LO);
930 }
931
932 static
933 void free_btres(struct bttv *btv, struct bttv_fh *fh, int bits)
934 {
935 if ((fh->resources & bits) != bits) {
936 /* trying to free ressources not allocated by us ... */
937 printk("bttv: BUG! (btres)\n");
938 }
939 mutex_lock(&btv->lock);
940 fh->resources &= ~bits;
941 btv->resources &= ~bits;
942
943 bits = btv->resources;
944
945 if (0 == (bits & VIDEO_RESOURCES))
946 disclaim_video_lines(btv);
947
948 if (0 == (bits & VBI_RESOURCES))
949 disclaim_vbi_lines(btv);
950
951 mutex_unlock(&btv->lock);
952 }
953
954 /* ----------------------------------------------------------------------- */
955 /* If Bt848a or Bt849, use PLL for PAL/SECAM and crystal for NTSC */
956
957 /* Frequency = (F_input / PLL_X) * PLL_I.PLL_F/PLL_C
958 PLL_X = Reference pre-divider (0=1, 1=2)
959 PLL_C = Post divider (0=6, 1=4)
960 PLL_I = Integer input
961 PLL_F = Fractional input
962
963 F_input = 28.636363 MHz:
964 PAL (CLKx2 = 35.46895 MHz): PLL_X = 1, PLL_I = 0x0E, PLL_F = 0xDCF9, PLL_C = 0
965 */
966
967 static void set_pll_freq(struct bttv *btv, unsigned int fin, unsigned int fout)
968 {
969 unsigned char fl, fh, fi;
970
971 /* prevent overflows */
972 fin/=4;
973 fout/=4;
974
975 fout*=12;
976 fi=fout/fin;
977
978 fout=(fout%fin)*256;
979 fh=fout/fin;
980
981 fout=(fout%fin)*256;
982 fl=fout/fin;
983
984 btwrite(fl, BT848_PLL_F_LO);
985 btwrite(fh, BT848_PLL_F_HI);
986 btwrite(fi|BT848_PLL_X, BT848_PLL_XCI);
987 }
988
989 static void set_pll(struct bttv *btv)
990 {
991 int i;
992
993 if (!btv->pll.pll_crystal)
994 return;
995
996 if (btv->pll.pll_ofreq == btv->pll.pll_current) {
997 dprintk("bttv%d: PLL: no change required\n",btv->c.nr);
998 return;
999 }
1000
1001 if (btv->pll.pll_ifreq == btv->pll.pll_ofreq) {
1002 /* no PLL needed */
1003 if (btv->pll.pll_current == 0)
1004 return;
1005 bttv_printk(KERN_INFO "bttv%d: PLL can sleep, using XTAL (%d).\n",
1006 btv->c.nr,btv->pll.pll_ifreq);
1007 btwrite(0x00,BT848_TGCTRL);
1008 btwrite(0x00,BT848_PLL_XCI);
1009 btv->pll.pll_current = 0;
1010 return;
1011 }
1012
1013 bttv_printk(KERN_INFO "bttv%d: PLL: %d => %d ",btv->c.nr,
1014 btv->pll.pll_ifreq, btv->pll.pll_ofreq);
1015 set_pll_freq(btv, btv->pll.pll_ifreq, btv->pll.pll_ofreq);
1016
1017 for (i=0; i<10; i++) {
1018 /* Let other people run while the PLL stabilizes */
1019 bttv_printk(".");
1020 msleep(10);
1021
1022 if (btread(BT848_DSTATUS) & BT848_DSTATUS_PLOCK) {
1023 btwrite(0,BT848_DSTATUS);
1024 } else {
1025 btwrite(0x08,BT848_TGCTRL);
1026 btv->pll.pll_current = btv->pll.pll_ofreq;
1027 bttv_printk(" ok\n");
1028 return;
1029 }
1030 }
1031 btv->pll.pll_current = -1;
1032 bttv_printk("failed\n");
1033 return;
1034 }
1035
1036 /* used to switch between the bt848's analog/digital video capture modes */
1037 static void bt848A_set_timing(struct bttv *btv)
1038 {
1039 int i, len;
1040 int table_idx = bttv_tvnorms[btv->tvnorm].sram;
1041 int fsc = bttv_tvnorms[btv->tvnorm].Fsc;
1042
1043 if (UNSET == bttv_tvcards[btv->c.type].muxsel[btv->input]) {
1044 dprintk("bttv%d: load digital timing table (table_idx=%d)\n",
1045 btv->c.nr,table_idx);
1046
1047 /* timing change...reset timing generator address */
1048 btwrite(0x00, BT848_TGCTRL);
1049 btwrite(0x02, BT848_TGCTRL);
1050 btwrite(0x00, BT848_TGCTRL);
1051
1052 len=SRAM_Table[table_idx][0];
1053 for(i = 1; i <= len; i++)
1054 btwrite(SRAM_Table[table_idx][i],BT848_TGLB);
1055 btv->pll.pll_ofreq = 27000000;
1056
1057 set_pll(btv);
1058 btwrite(0x11, BT848_TGCTRL);
1059 btwrite(0x41, BT848_DVSIF);
1060 } else {
1061 btv->pll.pll_ofreq = fsc;
1062 set_pll(btv);
1063 btwrite(0x0, BT848_DVSIF);
1064 }
1065 }
1066
1067 /* ----------------------------------------------------------------------- */
1068
1069 static void bt848_bright(struct bttv *btv, int bright)
1070 {
1071 int value;
1072
1073 // printk("bttv: set bright: %d\n",bright); // DEBUG
1074 btv->bright = bright;
1075
1076 /* We want -128 to 127 we get 0-65535 */
1077 value = (bright >> 8) - 128;
1078 btwrite(value & 0xff, BT848_BRIGHT);
1079 }
1080
1081 static void bt848_hue(struct bttv *btv, int hue)
1082 {
1083 int value;
1084
1085 btv->hue = hue;
1086
1087 /* -128 to 127 */
1088 value = (hue >> 8) - 128;
1089 btwrite(value & 0xff, BT848_HUE);
1090 }
1091
1092 static void bt848_contrast(struct bttv *btv, int cont)
1093 {
1094 int value,hibit;
1095
1096 btv->contrast = cont;
1097
1098 /* 0-511 */
1099 value = (cont >> 7);
1100 hibit = (value >> 6) & 4;
1101 btwrite(value & 0xff, BT848_CONTRAST_LO);
1102 btaor(hibit, ~4, BT848_E_CONTROL);
1103 btaor(hibit, ~4, BT848_O_CONTROL);
1104 }
1105
1106 static void bt848_sat(struct bttv *btv, int color)
1107 {
1108 int val_u,val_v,hibits;
1109
1110 btv->saturation = color;
1111
1112 /* 0-511 for the color */
1113 val_u = ((color * btv->opt_uv_ratio) / 50) >> 7;
1114 val_v = (((color * (100 - btv->opt_uv_ratio) / 50) >>7)*180L)/254;
1115 hibits = (val_u >> 7) & 2;
1116 hibits |= (val_v >> 8) & 1;
1117 btwrite(val_u & 0xff, BT848_SAT_U_LO);
1118 btwrite(val_v & 0xff, BT848_SAT_V_LO);
1119 btaor(hibits, ~3, BT848_E_CONTROL);
1120 btaor(hibits, ~3, BT848_O_CONTROL);
1121 }
1122
1123 /* ----------------------------------------------------------------------- */
1124
1125 static int
1126 video_mux(struct bttv *btv, unsigned int input)
1127 {
1128 int mux,mask2;
1129
1130 if (input >= bttv_tvcards[btv->c.type].video_inputs)
1131 return -EINVAL;
1132
1133 /* needed by RemoteVideo MX */
1134 mask2 = bttv_tvcards[btv->c.type].gpiomask2;
1135 if (mask2)
1136 gpio_inout(mask2,mask2);
1137
1138 if (input == btv->svhs) {
1139 btor(BT848_CONTROL_COMP, BT848_E_CONTROL);
1140 btor(BT848_CONTROL_COMP, BT848_O_CONTROL);
1141 } else {
1142 btand(~BT848_CONTROL_COMP, BT848_E_CONTROL);
1143 btand(~BT848_CONTROL_COMP, BT848_O_CONTROL);
1144 }
1145 mux = bttv_tvcards[btv->c.type].muxsel[input] & 3;
1146 btaor(mux<<5, ~(3<<5), BT848_IFORM);
1147 dprintk(KERN_DEBUG "bttv%d: video mux: input=%d mux=%d\n",
1148 btv->c.nr,input,mux);
1149
1150 /* card specific hook */
1151 if(bttv_tvcards[btv->c.type].muxsel_hook)
1152 bttv_tvcards[btv->c.type].muxsel_hook (btv, input);
1153 return 0;
1154 }
1155
1156 static char *audio_modes[] = {
1157 "audio: tuner", "audio: radio", "audio: extern",
1158 "audio: intern", "audio: mute"
1159 };
1160
1161 static int
1162 audio_mux(struct bttv *btv, int input, int mute)
1163 {
1164 int gpio_val, signal;
1165 struct v4l2_control ctrl;
1166 struct i2c_client *c;
1167
1168 gpio_inout(bttv_tvcards[btv->c.type].gpiomask,
1169 bttv_tvcards[btv->c.type].gpiomask);
1170 signal = btread(BT848_DSTATUS) & BT848_DSTATUS_HLOC;
1171
1172 btv->mute = mute;
1173 btv->audio = input;
1174
1175 /* automute */
1176 mute = mute || (btv->opt_automute && !signal && !btv->radio_user);
1177
1178 if (mute)
1179 gpio_val = bttv_tvcards[btv->c.type].gpiomute;
1180 else
1181 gpio_val = bttv_tvcards[btv->c.type].gpiomux[input];
1182
1183 gpio_bits(bttv_tvcards[btv->c.type].gpiomask, gpio_val);
1184 if (bttv_gpio)
1185 bttv_gpio_tracking(btv, audio_modes[mute ? 4 : input]);
1186 if (in_interrupt())
1187 return 0;
1188
1189 ctrl.id = V4L2_CID_AUDIO_MUTE;
1190 ctrl.value = btv->mute;
1191 bttv_call_i2c_clients(btv, VIDIOC_S_CTRL, &ctrl);
1192 c = btv->i2c_msp34xx_client;
1193 if (c) {
1194 struct v4l2_routing route;
1195
1196 /* Note: the inputs tuner/radio/extern/intern are translated
1197 to msp routings. This assumes common behavior for all msp3400
1198 based TV cards. When this assumption fails, then the
1199 specific MSP routing must be added to the card table.
1200 For now this is sufficient. */
1201 switch (input) {
1202 case TVAUDIO_INPUT_RADIO:
1203 route.input = MSP_INPUT(MSP_IN_SCART2, MSP_IN_TUNER1,
1204 MSP_DSP_IN_SCART, MSP_DSP_IN_SCART);
1205 break;
1206 case TVAUDIO_INPUT_EXTERN:
1207 route.input = MSP_INPUT(MSP_IN_SCART1, MSP_IN_TUNER1,
1208 MSP_DSP_IN_SCART, MSP_DSP_IN_SCART);
1209 break;
1210 case TVAUDIO_INPUT_INTERN:
1211 /* Yes, this is the same input as for RADIO. I doubt
1212 if this is ever used. The only board with an INTERN
1213 input is the BTTV_BOARD_AVERMEDIA98. I wonder how
1214 that was tested. My guess is that the whole INTERN
1215 input does not work. */
1216 route.input = MSP_INPUT(MSP_IN_SCART2, MSP_IN_TUNER1,
1217 MSP_DSP_IN_SCART, MSP_DSP_IN_SCART);
1218 break;
1219 case TVAUDIO_INPUT_TUNER:
1220 default:
1221 /* This is the only card that uses TUNER2, and afaik,
1222 is the only difference between the VOODOOTV_FM
1223 and VOODOOTV_200 */
1224 if (btv->c.type == BTTV_BOARD_VOODOOTV_200)
1225 route.input = MSP_INPUT(MSP_IN_SCART1, MSP_IN_TUNER2, \
1226 MSP_DSP_IN_TUNER, MSP_DSP_IN_TUNER);
1227 else
1228 route.input = MSP_INPUT_DEFAULT;
1229 break;
1230 }
1231 route.output = MSP_OUTPUT_DEFAULT;
1232 c->driver->command(c, VIDIOC_INT_S_AUDIO_ROUTING, &route);
1233 }
1234 c = btv->i2c_tvaudio_client;
1235 if (c) {
1236 struct v4l2_routing route;
1237
1238 route.input = input;
1239 route.output = 0;
1240 c->driver->command(c, VIDIOC_INT_S_AUDIO_ROUTING, &route);
1241 }
1242 return 0;
1243 }
1244
1245 static inline int
1246 audio_mute(struct bttv *btv, int mute)
1247 {
1248 return audio_mux(btv, btv->audio, mute);
1249 }
1250
1251 static inline int
1252 audio_input(struct bttv *btv, int input)
1253 {
1254 return audio_mux(btv, input, btv->mute);
1255 }
1256
1257 static void
1258 bttv_crop_calc_limits(struct bttv_crop *c)
1259 {
1260 /* Scale factor min. 1:1, max. 16:1. Min. image size
1261 48 x 32. Scaled width must be a multiple of 4. */
1262
1263 if (1) {
1264 /* For bug compatibility with VIDIOCGCAP and image
1265 size checks in earlier driver versions. */
1266 c->min_scaled_width = 48;
1267 c->min_scaled_height = 32;
1268 } else {
1269 c->min_scaled_width =
1270 (max(48, c->rect.width >> 4) + 3) & ~3;
1271 c->min_scaled_height =
1272 max(32, c->rect.height >> 4);
1273 }
1274
1275 c->max_scaled_width = c->rect.width & ~3;
1276 c->max_scaled_height = c->rect.height;
1277 }
1278
1279 static void
1280 bttv_crop_reset(struct bttv_crop *c, int norm)
1281 {
1282 c->rect = bttv_tvnorms[norm].cropcap.defrect;
1283 bttv_crop_calc_limits(c);
1284 }
1285
1286 /* Call with btv->lock down. */
1287 static int
1288 set_tvnorm(struct bttv *btv, unsigned int norm)
1289 {
1290 const struct bttv_tvnorm *tvnorm;
1291 v4l2_std_id id;
1292
1293 if (norm < 0 || norm >= BTTV_TVNORMS)
1294 return -EINVAL;
1295
1296 tvnorm = &bttv_tvnorms[norm];
1297
1298 if (btv->tvnorm < 0 ||
1299 btv->tvnorm >= BTTV_TVNORMS ||
1300 0 != memcmp(&bttv_tvnorms[btv->tvnorm].cropcap,
1301 &tvnorm->cropcap,
1302 sizeof (tvnorm->cropcap))) {
1303 bttv_crop_reset(&btv->crop[0], norm);
1304 btv->crop[1] = btv->crop[0]; /* current = default */
1305
1306 if (0 == (btv->resources & VIDEO_RESOURCES)) {
1307 btv->crop_start = tvnorm->cropcap.bounds.top
1308 + tvnorm->cropcap.bounds.height;
1309 }
1310 }
1311
1312 btv->tvnorm = norm;
1313
1314 btwrite(tvnorm->adelay, BT848_ADELAY);
1315 btwrite(tvnorm->bdelay, BT848_BDELAY);
1316 btaor(tvnorm->iform,~(BT848_IFORM_NORM|BT848_IFORM_XTBOTH),
1317 BT848_IFORM);
1318 btwrite(tvnorm->vbipack, BT848_VBI_PACK_SIZE);
1319 btwrite(1, BT848_VBI_PACK_DEL);
1320 bt848A_set_timing(btv);
1321
1322 switch (btv->c.type) {
1323 case BTTV_BOARD_VOODOOTV_FM:
1324 case BTTV_BOARD_VOODOOTV_200:
1325 bttv_tda9880_setnorm(btv,norm);
1326 break;
1327 }
1328 id = tvnorm->v4l2_id;
1329 bttv_call_i2c_clients(btv, VIDIOC_S_STD, &id);
1330
1331 return 0;
1332 }
1333
1334 /* Call with btv->lock down. */
1335 static void
1336 set_input(struct bttv *btv, unsigned int input, unsigned int norm)
1337 {
1338 unsigned long flags;
1339
1340 btv->input = input;
1341 if (irq_iswitch) {
1342 spin_lock_irqsave(&btv->s_lock,flags);
1343 if (btv->curr.frame_irq) {
1344 /* active capture -> delayed input switch */
1345 btv->new_input = input;
1346 } else {
1347 video_mux(btv,input);
1348 }
1349 spin_unlock_irqrestore(&btv->s_lock,flags);
1350 } else {
1351 video_mux(btv,input);
1352 }
1353 audio_input(btv,(input == bttv_tvcards[btv->c.type].tuner ?
1354 TVAUDIO_INPUT_TUNER : TVAUDIO_INPUT_EXTERN));
1355 set_tvnorm(btv, norm);
1356 }
1357
1358 static void init_irqreg(struct bttv *btv)
1359 {
1360 /* clear status */
1361 btwrite(0xfffffUL, BT848_INT_STAT);
1362
1363 if (bttv_tvcards[btv->c.type].no_video) {
1364 /* i2c only */
1365 btwrite(BT848_INT_I2CDONE,
1366 BT848_INT_MASK);
1367 } else {
1368 /* full video */
1369 btwrite((btv->triton1) |
1370 (btv->gpioirq ? BT848_INT_GPINT : 0) |
1371 BT848_INT_SCERR |
1372 (fdsr ? BT848_INT_FDSR : 0) |
1373 BT848_INT_RISCI | BT848_INT_OCERR |
1374 BT848_INT_FMTCHG|BT848_INT_HLOCK|
1375 BT848_INT_I2CDONE,
1376 BT848_INT_MASK);
1377 }
1378 }
1379
1380 static void init_bt848(struct bttv *btv)
1381 {
1382 int val;
1383
1384 if (bttv_tvcards[btv->c.type].no_video) {
1385 /* very basic init only */
1386 init_irqreg(btv);
1387 return;
1388 }
1389
1390 btwrite(0x00, BT848_CAP_CTL);
1391 btwrite(BT848_COLOR_CTL_GAMMA, BT848_COLOR_CTL);
1392 btwrite(BT848_IFORM_XTAUTO | BT848_IFORM_AUTO, BT848_IFORM);
1393
1394 /* set planar and packed mode trigger points and */
1395 /* set rising edge of inverted GPINTR pin as irq trigger */
1396 btwrite(BT848_GPIO_DMA_CTL_PKTP_32|
1397 BT848_GPIO_DMA_CTL_PLTP1_16|
1398 BT848_GPIO_DMA_CTL_PLTP23_16|
1399 BT848_GPIO_DMA_CTL_GPINTC|
1400 BT848_GPIO_DMA_CTL_GPINTI,
1401 BT848_GPIO_DMA_CTL);
1402
1403 val = btv->opt_chroma_agc ? BT848_SCLOOP_CAGC : 0;
1404 btwrite(val, BT848_E_SCLOOP);
1405 btwrite(val, BT848_O_SCLOOP);
1406
1407 btwrite(0x20, BT848_E_VSCALE_HI);
1408 btwrite(0x20, BT848_O_VSCALE_HI);
1409 btwrite(BT848_ADC_RESERVED | (btv->opt_adc_crush ? BT848_ADC_CRUSH : 0),
1410 BT848_ADC);
1411
1412 btwrite(whitecrush_upper, BT848_WC_UP);
1413 btwrite(whitecrush_lower, BT848_WC_DOWN);
1414
1415 if (btv->opt_lumafilter) {
1416 btwrite(0, BT848_E_CONTROL);
1417 btwrite(0, BT848_O_CONTROL);
1418 } else {
1419 btwrite(BT848_CONTROL_LDEC, BT848_E_CONTROL);
1420 btwrite(BT848_CONTROL_LDEC, BT848_O_CONTROL);
1421 }
1422
1423 bt848_bright(btv, btv->bright);
1424 bt848_hue(btv, btv->hue);
1425 bt848_contrast(btv, btv->contrast);
1426 bt848_sat(btv, btv->saturation);
1427
1428 /* interrupt */
1429 init_irqreg(btv);
1430 }
1431
1432 static void bttv_reinit_bt848(struct bttv *btv)
1433 {
1434 unsigned long flags;
1435
1436 if (bttv_verbose)
1437 printk(KERN_INFO "bttv%d: reset, reinitialize\n",btv->c.nr);
1438 spin_lock_irqsave(&btv->s_lock,flags);
1439 btv->errors=0;
1440 bttv_set_dma(btv,0);
1441 spin_unlock_irqrestore(&btv->s_lock,flags);
1442
1443 init_bt848(btv);
1444 btv->pll.pll_current = -1;
1445 set_input(btv, btv->input, btv->tvnorm);
1446 }
1447
1448 static int bttv_g_ctrl(struct file *file, void *priv,
1449 struct v4l2_control *c)
1450 {
1451 struct bttv_fh *fh = priv;
1452 struct bttv *btv = fh->btv;
1453
1454 switch (c->id) {
1455 case V4L2_CID_BRIGHTNESS:
1456 c->value = btv->bright;
1457 break;
1458 case V4L2_CID_HUE:
1459 c->value = btv->hue;
1460 break;
1461 case V4L2_CID_CONTRAST:
1462 c->value = btv->contrast;
1463 break;
1464 case V4L2_CID_SATURATION:
1465 c->value = btv->saturation;
1466 break;
1467
1468 case V4L2_CID_AUDIO_MUTE:
1469 case V4L2_CID_AUDIO_VOLUME:
1470 case V4L2_CID_AUDIO_BALANCE:
1471 case V4L2_CID_AUDIO_BASS:
1472 case V4L2_CID_AUDIO_TREBLE:
1473 bttv_call_i2c_clients(btv, VIDIOC_G_CTRL, c);
1474 break;
1475
1476 case V4L2_CID_PRIVATE_CHROMA_AGC:
1477 c->value = btv->opt_chroma_agc;
1478 break;
1479 case V4L2_CID_PRIVATE_COMBFILTER:
1480 c->value = btv->opt_combfilter;
1481 break;
1482 case V4L2_CID_PRIVATE_LUMAFILTER:
1483 c->value = btv->opt_lumafilter;
1484 break;
1485 case V4L2_CID_PRIVATE_AUTOMUTE:
1486 c->value = btv->opt_automute;
1487 break;
1488 case V4L2_CID_PRIVATE_AGC_CRUSH:
1489 c->value = btv->opt_adc_crush;
1490 break;
1491 case V4L2_CID_PRIVATE_VCR_HACK:
1492 c->value = btv->opt_vcr_hack;
1493 break;
1494 case V4L2_CID_PRIVATE_WHITECRUSH_UPPER:
1495 c->value = btv->opt_whitecrush_upper;
1496 break;
1497 case V4L2_CID_PRIVATE_WHITECRUSH_LOWER:
1498 c->value = btv->opt_whitecrush_lower;
1499 break;
1500 case V4L2_CID_PRIVATE_UV_RATIO:
1501 c->value = btv->opt_uv_ratio;
1502 break;
1503 case V4L2_CID_PRIVATE_FULL_LUMA_RANGE:
1504 c->value = btv->opt_full_luma_range;
1505 break;
1506 case V4L2_CID_PRIVATE_CORING:
1507 c->value = btv->opt_coring;
1508 break;
1509 default:
1510 return -EINVAL;
1511 }
1512 return 0;
1513 }
1514
1515 static int bttv_s_ctrl(struct file *file, void *f,
1516 struct v4l2_control *c)
1517 {
1518 int err;
1519 int val;
1520 struct bttv_fh *fh = f;
1521 struct bttv *btv = fh->btv;
1522
1523 err = v4l2_prio_check(&btv->prio, &fh->prio);
1524 if (0 != err)
1525 return err;
1526
1527 switch (c->id) {
1528 case V4L2_CID_BRIGHTNESS:
1529 bt848_bright(btv, c->value);
1530 break;
1531 case V4L2_CID_HUE:
1532 bt848_hue(btv, c->value);
1533 break;
1534 case V4L2_CID_CONTRAST:
1535 bt848_contrast(btv, c->value);
1536 break;
1537 case V4L2_CID_SATURATION:
1538 bt848_sat(btv, c->value);
1539 break;
1540 case V4L2_CID_AUDIO_MUTE:
1541 audio_mute(btv, c->value);
1542 /* fall through */
1543 case V4L2_CID_AUDIO_VOLUME:
1544 if (btv->volume_gpio)
1545 btv->volume_gpio(btv, c->value);
1546
1547 bttv_call_i2c_clients(btv, VIDIOC_S_CTRL, c);
1548 break;
1549 case V4L2_CID_AUDIO_BALANCE:
1550 case V4L2_CID_AUDIO_BASS:
1551 case V4L2_CID_AUDIO_TREBLE:
1552 bttv_call_i2c_clients(btv, VIDIOC_S_CTRL, c);
1553 break;
1554
1555 case V4L2_CID_PRIVATE_CHROMA_AGC:
1556 btv->opt_chroma_agc = c->value;
1557 val = btv->opt_chroma_agc ? BT848_SCLOOP_CAGC : 0;
1558 btwrite(val, BT848_E_SCLOOP);
1559 btwrite(val, BT848_O_SCLOOP);
1560 break;
1561 case V4L2_CID_PRIVATE_COMBFILTER:
1562 btv->opt_combfilter = c->value;
1563 break;
1564 case V4L2_CID_PRIVATE_LUMAFILTER:
1565 btv->opt_lumafilter = c->value;
1566 if (btv->opt_lumafilter) {
1567 btand(~BT848_CONTROL_LDEC, BT848_E_CONTROL);
1568 btand(~BT848_CONTROL_LDEC, BT848_O_CONTROL);
1569 } else {
1570 btor(BT848_CONTROL_LDEC, BT848_E_CONTROL);
1571 btor(BT848_CONTROL_LDEC, BT848_O_CONTROL);
1572 }
1573 break;
1574 case V4L2_CID_PRIVATE_AUTOMUTE:
1575 btv->opt_automute = c->value;
1576 break;
1577 case V4L2_CID_PRIVATE_AGC_CRUSH:
1578 btv->opt_adc_crush = c->value;
1579 btwrite(BT848_ADC_RESERVED |
1580 (btv->opt_adc_crush ? BT848_ADC_CRUSH : 0),
1581 BT848_ADC);
1582 break;
1583 case V4L2_CID_PRIVATE_VCR_HACK:
1584 btv->opt_vcr_hack = c->value;
1585 break;
1586 case V4L2_CID_PRIVATE_WHITECRUSH_UPPER:
1587 btv->opt_whitecrush_upper = c->value;
1588 btwrite(c->value, BT848_WC_UP);
1589 break;
1590 case V4L2_CID_PRIVATE_WHITECRUSH_LOWER:
1591 btv->opt_whitecrush_lower = c->value;
1592 btwrite(c->value, BT848_WC_DOWN);
1593 break;
1594 case V4L2_CID_PRIVATE_UV_RATIO:
1595 btv->opt_uv_ratio = c->value;
1596 bt848_sat(btv, btv->saturation);
1597 break;
1598 case V4L2_CID_PRIVATE_FULL_LUMA_RANGE:
1599 btv->opt_full_luma_range = c->value;
1600 btaor((c->value<<7), ~BT848_OFORM_RANGE, BT848_OFORM);
1601 break;
1602 case V4L2_CID_PRIVATE_CORING:
1603 btv->opt_coring = c->value;
1604 btaor((c->value<<5), ~BT848_OFORM_CORE32, BT848_OFORM);
1605 break;
1606 default:
1607 return -EINVAL;
1608 }
1609 return 0;
1610 }
1611
1612 /* ----------------------------------------------------------------------- */
1613
1614 void bttv_gpio_tracking(struct bttv *btv, char *comment)
1615 {
1616 unsigned int outbits, data;
1617 outbits = btread(BT848_GPIO_OUT_EN);
1618 data = btread(BT848_GPIO_DATA);
1619 printk(KERN_DEBUG "bttv%d: gpio: en=%08x, out=%08x in=%08x [%s]\n",
1620 btv->c.nr,outbits,data & outbits, data & ~outbits, comment);
1621 }
1622
1623 static void bttv_field_count(struct bttv *btv)
1624 {
1625 int need_count = 0;
1626
1627 if (btv->users)
1628 need_count++;
1629
1630 if (need_count) {
1631 /* start field counter */
1632 btor(BT848_INT_VSYNC,BT848_INT_MASK);
1633 } else {
1634 /* stop field counter */
1635 btand(~BT848_INT_VSYNC,BT848_INT_MASK);
1636 btv->field_count = 0;
1637 }
1638 }
1639
1640 static const struct bttv_format*
1641 format_by_fourcc(int fourcc)
1642 {
1643 unsigned int i;
1644
1645 for (i = 0; i < FORMATS; i++) {
1646 if (-1 == formats[i].fourcc)
1647 continue;
1648 if (formats[i].fourcc == fourcc)
1649 return formats+i;
1650 }
1651 return NULL;
1652 }
1653
1654 /* ----------------------------------------------------------------------- */
1655 /* misc helpers */
1656
1657 static int
1658 bttv_switch_overlay(struct bttv *btv, struct bttv_fh *fh,
1659 struct bttv_buffer *new)
1660 {
1661 struct bttv_buffer *old;
1662 unsigned long flags;
1663 int retval = 0;
1664
1665 dprintk("switch_overlay: enter [new=%p]\n",new);
1666 if (new)
1667 new->vb.state = VIDEOBUF_DONE;
1668 spin_lock_irqsave(&btv->s_lock,flags);
1669 old = btv->screen;
1670 btv->screen = new;
1671 btv->loop_irq |= 1;
1672 bttv_set_dma(btv, 0x03);
1673 spin_unlock_irqrestore(&btv->s_lock,flags);
1674 if (NULL != old) {
1675 dprintk("switch_overlay: old=%p state is %d\n",old,old->vb.state);
1676 bttv_dma_free(&fh->cap,btv, old);
1677 kfree(old);
1678 }
1679 if (NULL == new)
1680 free_btres(btv,fh,RESOURCE_OVERLAY);
1681 dprintk("switch_overlay: done\n");
1682 return retval;
1683 }
1684
1685 /* ----------------------------------------------------------------------- */
1686 /* video4linux (1) interface */
1687
1688 static int bttv_prepare_buffer(struct videobuf_queue *q,struct bttv *btv,
1689 struct bttv_buffer *buf,
1690 const struct bttv_format *fmt,
1691 unsigned int width, unsigned int height,
1692 enum v4l2_field field)
1693 {
1694 struct bttv_fh *fh = q->priv_data;
1695 int redo_dma_risc = 0;
1696 struct bttv_crop c;
1697 int norm;
1698 int rc;
1699
1700 /* check settings */
1701 if (NULL == fmt)
1702 return -EINVAL;
1703 if (fmt->btformat == BT848_COLOR_FMT_RAW) {
1704 width = RAW_BPL;
1705 height = RAW_LINES*2;
1706 if (width*height > buf->vb.bsize)
1707 return -EINVAL;
1708 buf->vb.size = buf->vb.bsize;
1709
1710 /* Make sure tvnorm and vbi_end remain consistent
1711 until we're done. */
1712 mutex_lock(&btv->lock);
1713
1714 norm = btv->tvnorm;
1715
1716 /* In this mode capturing always starts at defrect.top
1717 (default VDELAY), ignoring cropping parameters. */
1718 if (btv->vbi_end > bttv_tvnorms[norm].cropcap.defrect.top) {
1719 mutex_unlock(&btv->lock);
1720 return -EINVAL;
1721 }
1722
1723 mutex_unlock(&btv->lock);
1724
1725 c.rect = bttv_tvnorms[norm].cropcap.defrect;
1726 } else {
1727 mutex_lock(&btv->lock);
1728
1729 norm = btv->tvnorm;
1730 c = btv->crop[!!fh->do_crop];
1731
1732 mutex_unlock(&btv->lock);
1733
1734 if (width < c.min_scaled_width ||
1735 width > c.max_scaled_width ||
1736 height < c.min_scaled_height)
1737 return -EINVAL;
1738
1739 switch (field) {
1740 case V4L2_FIELD_TOP:
1741 case V4L2_FIELD_BOTTOM:
1742 case V4L2_FIELD_ALTERNATE:
1743 /* btv->crop counts frame lines. Max. scale
1744 factor is 16:1 for frames, 8:1 for fields. */
1745 if (height * 2 > c.max_scaled_height)
1746 return -EINVAL;
1747 break;
1748
1749 default:
1750 if (height > c.max_scaled_height)
1751 return -EINVAL;
1752 break;
1753 }
1754
1755 buf->vb.size = (width * height * fmt->depth) >> 3;
1756 if (0 != buf->vb.baddr && buf->vb.bsize < buf->vb.size)
1757 return -EINVAL;
1758 }
1759
1760 /* alloc + fill struct bttv_buffer (if changed) */
1761 if (buf->vb.width != width || buf->vb.height != height ||
1762 buf->vb.field != field ||
1763 buf->tvnorm != norm || buf->fmt != fmt ||
1764 buf->crop.top != c.rect.top ||
1765 buf->crop.left != c.rect.left ||
1766 buf->crop.width != c.rect.width ||
1767 buf->crop.height != c.rect.height) {
1768 buf->vb.width = width;
1769 buf->vb.height = height;
1770 buf->vb.field = field;
1771 buf->tvnorm = norm;
1772 buf->fmt = fmt;
1773 buf->crop = c.rect;
1774 redo_dma_risc = 1;
1775 }
1776
1777 /* alloc risc memory */
1778 if (VIDEOBUF_NEEDS_INIT == buf->vb.state) {
1779 redo_dma_risc = 1;
1780 if (0 != (rc = videobuf_iolock(q,&buf->vb,&btv->fbuf)))
1781 goto fail;
1782 }
1783
1784 if (redo_dma_risc)
1785 if (0 != (rc = bttv_buffer_risc(btv,buf)))
1786 goto fail;
1787
1788 buf->vb.state = VIDEOBUF_PREPARED;
1789 return 0;
1790
1791 fail:
1792 bttv_dma_free(q,btv,buf);
1793 return rc;
1794 }
1795
1796 static int
1797 buffer_setup(struct videobuf_queue *q, unsigned int *count, unsigned int *size)
1798 {
1799 struct bttv_fh *fh = q->priv_data;
1800
1801 *size = fh->fmt->depth*fh->width*fh->height >> 3;
1802 if (0 == *count)
1803 *count = gbuffers;
1804 while (*size * *count > gbuffers * gbufsize)
1805 (*count)--;
1806 return 0;
1807 }
1808
1809 static int
1810 buffer_prepare(struct videobuf_queue *q, struct videobuf_buffer *vb,
1811 enum v4l2_field field)
1812 {
1813 struct bttv_buffer *buf = container_of(vb,struct bttv_buffer,vb);
1814 struct bttv_fh *fh = q->priv_data;
1815
1816 return bttv_prepare_buffer(q,fh->btv, buf, fh->fmt,
1817 fh->width, fh->height, field);
1818 }
1819
1820 static void
1821 buffer_queue(struct videobuf_queue *q, struct videobuf_buffer *vb)
1822 {
1823 struct bttv_buffer *buf = container_of(vb,struct bttv_buffer,vb);
1824 struct bttv_fh *fh = q->priv_data;
1825 struct bttv *btv = fh->btv;
1826
1827 buf->vb.state = VIDEOBUF_QUEUED;
1828 list_add_tail(&buf->vb.queue,&btv->capture);
1829 if (!btv->curr.frame_irq) {
1830 btv->loop_irq |= 1;
1831 bttv_set_dma(btv, 0x03);
1832 }
1833 }
1834
1835 static void buffer_release(struct videobuf_queue *q, struct videobuf_buffer *vb)
1836 {
1837 struct bttv_buffer *buf = container_of(vb,struct bttv_buffer,vb);
1838 struct bttv_fh *fh = q->priv_data;
1839
1840 bttv_dma_free(q,fh->btv,buf);
1841 }
1842
1843 static struct videobuf_queue_ops bttv_video_qops = {
1844 .buf_setup = buffer_setup,
1845 .buf_prepare = buffer_prepare,
1846 .buf_queue = buffer_queue,
1847 .buf_release = buffer_release,
1848 };
1849
1850 static int bttv_s_std(struct file *file, void *priv, v4l2_std_id *id)
1851 {
1852 struct bttv_fh *fh = priv;
1853 struct bttv *btv = fh->btv;
1854 unsigned int i;
1855 int err;
1856
1857 err = v4l2_prio_check(&btv->prio, &fh->prio);
1858 if (0 != err)
1859 return err;
1860
1861 for (i = 0; i < BTTV_TVNORMS; i++)
1862 if (*id & bttv_tvnorms[i].v4l2_id)
1863 break;
1864 if (i == BTTV_TVNORMS)
1865 return -EINVAL;
1866
1867 mutex_lock(&btv->lock);
1868 set_tvnorm(btv, i);
1869 mutex_unlock(&btv->lock);
1870
1871 return 0;
1872 }
1873
1874 static int bttv_querystd(struct file *file, void *f, v4l2_std_id *id)
1875 {
1876 struct bttv_fh *fh = f;
1877 struct bttv *btv = fh->btv;
1878
1879 if (btread(BT848_DSTATUS) & BT848_DSTATUS_NUML)
1880 *id = V4L2_STD_625_50;
1881 else
1882 *id = V4L2_STD_525_60;
1883 return 0;
1884 }
1885
1886 static int bttv_enum_input(struct file *file, void *priv,
1887 struct v4l2_input *i)
1888 {
1889 struct bttv_fh *fh = priv;
1890 struct bttv *btv = fh->btv;
1891 unsigned int n;
1892
1893 n = i->index;
1894
1895 if (n >= bttv_tvcards[btv->c.type].video_inputs)
1896 return -EINVAL;
1897
1898 memset(i, 0, sizeof(*i));
1899
1900 i->index = n;
1901 i->type = V4L2_INPUT_TYPE_CAMERA;
1902 i->audioset = 1;
1903
1904 if (i->index == bttv_tvcards[btv->c.type].tuner) {
1905 sprintf(i->name, "Television");
1906 i->type = V4L2_INPUT_TYPE_TUNER;
1907 i->tuner = 0;
1908 } else if (i->index == btv->svhs) {
1909 sprintf(i->name, "S-Video");
1910 } else {
1911 sprintf(i->name, "Composite%d", i->index);
1912 }
1913
1914 if (i->index == btv->input) {
1915 __u32 dstatus = btread(BT848_DSTATUS);
1916 if (0 == (dstatus & BT848_DSTATUS_PRES))
1917 i->status |= V4L2_IN_ST_NO_SIGNAL;
1918 if (0 == (dstatus & BT848_DSTATUS_HLOC))
1919 i->status |= V4L2_IN_ST_NO_H_LOCK;
1920 }
1921
1922 for (n = 0; n < BTTV_TVNORMS; n++)
1923 i->std |= bttv_tvnorms[n].v4l2_id;
1924
1925 return 0;
1926 }
1927
1928 static int bttv_g_input(struct file *file, void *priv, unsigned int *i)
1929 {
1930 struct bttv_fh *fh = priv;
1931 struct bttv *btv = fh->btv;
1932
1933 *i = btv->input;
1934 return 0;
1935 }
1936
1937 static int bttv_s_input(struct file *file, void *priv, unsigned int i)
1938 {
1939 struct bttv_fh *fh = priv;
1940 struct bttv *btv = fh->btv;
1941
1942 int err;
1943
1944 err = v4l2_prio_check(&btv->prio, &fh->prio);
1945 if (0 != err)
1946 return err;
1947
1948 if (i > bttv_tvcards[btv->c.type].video_inputs)
1949 return -EINVAL;
1950
1951 mutex_lock(&btv->lock);
1952 set_input(btv, i, btv->tvnorm);
1953 mutex_unlock(&btv->lock);
1954 return 0;
1955 }
1956
1957 static int bttv_s_tuner(struct file *file, void *priv,
1958 struct v4l2_tuner *t)
1959 {
1960 struct bttv_fh *fh = priv;
1961 struct bttv *btv = fh->btv;
1962 int err;
1963
1964 err = v4l2_prio_check(&btv->prio, &fh->prio);
1965 if (0 != err)
1966 return err;
1967
1968 if (UNSET == bttv_tvcards[btv->c.type].tuner)
1969 return -EINVAL;
1970
1971 if (0 != t->index)
1972 return -EINVAL;
1973
1974 mutex_lock(&btv->lock);
1975 bttv_call_i2c_clients(btv, VIDIOC_S_TUNER, t);
1976
1977 if (btv->audio_mode_gpio)
1978 btv->audio_mode_gpio(btv, t, 1);
1979
1980 mutex_unlock(&btv->lock);
1981
1982 return 0;
1983 }
1984
1985 static int bttv_g_frequency(struct file *file, void *priv,
1986 struct v4l2_frequency *f)
1987 {
1988 struct bttv_fh *fh = priv;
1989 struct bttv *btv = fh->btv;
1990 int err;
1991
1992 err = v4l2_prio_check(&btv->prio, &fh->prio);
1993 if (0 != err)
1994 return err;
1995
1996 f->type = btv->radio_user ? V4L2_TUNER_RADIO : V4L2_TUNER_ANALOG_TV;
1997 f->frequency = btv->freq;
1998
1999 return 0;
2000 }
2001
2002 static int bttv_s_frequency(struct file *file, void *priv,
2003 struct v4l2_frequency *f)
2004 {
2005 struct bttv_fh *fh = priv;
2006 struct bttv *btv = fh->btv;
2007 int err;
2008
2009 err = v4l2_prio_check(&btv->prio, &fh->prio);
2010 if (0 != err)
2011 return err;
2012
2013 if (unlikely(f->tuner != 0))
2014 return -EINVAL;
2015 if (unlikely(f->type != (btv->radio_user
2016 ? V4L2_TUNER_RADIO : V4L2_TUNER_ANALOG_TV)))
2017 return -EINVAL;
2018 mutex_lock(&btv->lock);
2019 btv->freq = f->frequency;
2020 bttv_call_i2c_clients(btv, VIDIOC_S_FREQUENCY, f);
2021 if (btv->has_matchbox && btv->radio_user)
2022 tea5757_set_freq(btv, btv->freq);
2023 mutex_unlock(&btv->lock);
2024 return 0;
2025 }
2026
2027 static int bttv_log_status(struct file *file, void *f)
2028 {
2029 struct bttv_fh *fh = f;
2030 struct bttv *btv = fh->btv;
2031
2032 printk(KERN_INFO "bttv%d: ======== START STATUS CARD #%d ========\n",
2033 btv->c.nr, btv->c.nr);
2034 bttv_call_i2c_clients(btv, VIDIOC_LOG_STATUS, NULL);
2035 printk(KERN_INFO "bttv%d: ======== END STATUS CARD #%d ========\n",
2036 btv->c.nr, btv->c.nr);
2037 return 0;
2038 }
2039
2040 #ifdef CONFIG_VIDEO_ADV_DEBUG
2041 static int bttv_g_register(struct file *file, void *f,
2042 struct v4l2_register *reg)
2043 {
2044 struct bttv_fh *fh = f;
2045 struct bttv *btv = fh->btv;
2046
2047 if (!capable(CAP_SYS_ADMIN))
2048 return -EPERM;
2049
2050 if (!v4l2_chip_match_host(reg->match_type, reg->match_chip))
2051 return -EINVAL;
2052
2053 /* bt848 has a 12-bit register space */
2054 reg->reg &= 0xfff;
2055 reg->val = btread(reg->reg);
2056
2057 return 0;
2058 }
2059
2060 static int bttv_s_register(struct file *file, void *f,
2061 struct v4l2_register *reg)
2062 {
2063 struct bttv_fh *fh = f;
2064 struct bttv *btv = fh->btv;
2065
2066 if (!capable(CAP_SYS_ADMIN))
2067 return -EPERM;
2068
2069 if (!v4l2_chip_match_host(reg->match_type, reg->match_chip))
2070 return -EINVAL;
2071
2072 /* bt848 has a 12-bit register space */
2073 reg->reg &= 0xfff;
2074 btwrite(reg->val, reg->reg);
2075
2076 return 0;
2077 }
2078 #endif
2079
2080 /* Given cropping boundaries b and the scaled width and height of a
2081 single field or frame, which must not exceed hardware limits, this
2082 function adjusts the cropping parameters c. */
2083 static void
2084 bttv_crop_adjust (struct bttv_crop * c,
2085 const struct v4l2_rect * b,
2086 __s32 width,
2087 __s32 height,
2088 enum v4l2_field field)
2089 {
2090 __s32 frame_height = height << !V4L2_FIELD_HAS_BOTH(field);
2091 __s32 max_left;
2092 __s32 max_top;
2093
2094 if (width < c->min_scaled_width) {
2095 /* Max. hor. scale factor 16:1. */
2096 c->rect.width = width * 16;
2097 } else if (width > c->max_scaled_width) {
2098 /* Min. hor. scale factor 1:1. */
2099 c->rect.width = width;
2100
2101 max_left = b->left + b->width - width;
2102 max_left = min(max_left, (__s32) MAX_HDELAY);
2103 if (c->rect.left > max_left)
2104 c->rect.left = max_left;
2105 }
2106
2107 if (height < c->min_scaled_height) {
2108 /* Max. vert. scale factor 16:1, single fields 8:1. */
2109 c->rect.height = height * 16;
2110 } else if (frame_height > c->max_scaled_height) {
2111 /* Min. vert. scale factor 1:1.
2112 Top and height count field lines times two. */
2113 c->rect.height = (frame_height + 1) & ~1;
2114
2115 max_top = b->top + b->height - c->rect.height;
2116 if (c->rect.top > max_top)
2117 c->rect.top = max_top;
2118 }
2119
2120 bttv_crop_calc_limits(c);
2121 }
2122
2123 /* Returns an error if scaling to a frame or single field with the given
2124 width and height is not possible with the current cropping parameters
2125 and width aligned according to width_mask. If adjust_size is TRUE the
2126 function may adjust the width and/or height instead, rounding width
2127 to (width + width_bias) & width_mask. If adjust_crop is TRUE it may
2128 also adjust the current cropping parameters to get closer to the
2129 desired image size. */
2130 static int
2131 limit_scaled_size (struct bttv_fh * fh,
2132 __s32 * width,
2133 __s32 * height,
2134 enum v4l2_field field,
2135 unsigned int width_mask,
2136 unsigned int width_bias,
2137 int adjust_size,
2138 int adjust_crop)
2139 {
2140 struct bttv *btv = fh->btv;
2141 const struct v4l2_rect *b;
2142 struct bttv_crop *c;
2143 __s32 min_width;
2144 __s32 min_height;
2145 __s32 max_width;
2146 __s32 max_height;
2147 int rc;
2148
2149 BUG_ON((int) width_mask >= 0 ||
2150 width_bias >= (unsigned int) -width_mask);
2151
2152 /* Make sure tvnorm, vbi_end and the current cropping parameters
2153 remain consistent until we're done. */
2154 mutex_lock(&btv->lock);
2155
2156 b = &bttv_tvnorms[btv->tvnorm].cropcap.bounds;
2157
2158 /* Do crop - use current, don't - use default parameters. */
2159 c = &btv->crop[!!fh->do_crop];
2160
2161 if (fh->do_crop
2162 && adjust_size
2163 && adjust_crop
2164 && !locked_btres(btv, VIDEO_RESOURCES)) {
2165 min_width = 48;
2166 min_height = 32;
2167
2168 /* We cannot scale up. When the scaled image is larger
2169 than crop.rect we adjust the crop.rect as required
2170 by the V4L2 spec, hence cropcap.bounds are our limit. */
2171 max_width = min(b->width, (__s32) MAX_HACTIVE);
2172 max_height = b->height;
2173
2174 /* We cannot capture the same line as video and VBI data.
2175 Note btv->vbi_end is really a minimum, see
2176 bttv_vbi_try_fmt(). */
2177 if (btv->vbi_end > b->top) {
2178 max_height -= btv->vbi_end - b->top;
2179 rc = -EBUSY;
2180 if (min_height > max_height)
2181 goto fail;
2182 }
2183 } else {
2184 rc = -EBUSY;
2185 if (btv->vbi_end > c->rect.top)
2186 goto fail;
2187
2188 min_width = c->min_scaled_width;
2189 min_height = c->min_scaled_height;
2190 max_width = c->max_scaled_width;
2191 max_height = c->max_scaled_height;
2192
2193 adjust_crop = 0;
2194 }
2195
2196 min_width = (min_width - width_mask - 1) & width_mask;
2197 max_width = max_width & width_mask;
2198
2199 /* Max. scale factor is 16:1 for frames, 8:1 for fields. */
2200 min_height = min_height;
2201 /* Min. scale factor is 1:1. */
2202 max_height >>= !V4L2_FIELD_HAS_BOTH(field);
2203
2204 if (adjust_size) {
2205 *width = clamp(*width, min_width, max_width);
2206 *height = clamp(*height, min_height, max_height);
2207
2208 /* Round after clamping to avoid overflow. */
2209 *width = (*width + width_bias) & width_mask;
2210
2211 if (adjust_crop) {
2212 bttv_crop_adjust(c, b, *width, *height, field);
2213
2214 if (btv->vbi_end > c->rect.top) {
2215 /* Move the crop window out of the way. */
2216 c->rect.top = btv->vbi_end;
2217 }
2218 }
2219 } else {
2220 rc = -EINVAL;
2221 if (*width < min_width ||
2222 *height < min_height ||
2223 *width > max_width ||
2224 *height > max_height ||
2225 0 != (*width & ~width_mask))
2226 goto fail;
2227 }
2228
2229 rc = 0; /* success */
2230
2231 fail:
2232 mutex_unlock(&btv->lock);
2233
2234 return rc;
2235 }
2236
2237 /* Returns an error if the given overlay window dimensions are not
2238 possible with the current cropping parameters. If adjust_size is
2239 TRUE the function may adjust the window width and/or height
2240 instead, however it always rounds the horizontal position and
2241 width as btcx_align() does. If adjust_crop is TRUE the function
2242 may also adjust the current cropping parameters to get closer
2243 to the desired window size. */
2244 static int
2245 verify_window (struct bttv_fh * fh,
2246 struct v4l2_window * win,
2247 int adjust_size,
2248 int adjust_crop)
2249 {
2250 enum v4l2_field field;
2251 unsigned int width_mask;
2252 int rc;
2253
2254 if (win->w.width < 48 || win->w.height < 32)
2255 return -EINVAL;
2256 if (win->clipcount > 2048)
2257 return -EINVAL;
2258
2259 field = win->field;
2260
2261 if (V4L2_FIELD_ANY == field) {
2262 __s32 height2;
2263
2264 height2 = fh->btv->crop[!!fh->do_crop].rect.height >> 1;
2265 field = (win->w.height > height2)
2266 ? V4L2_FIELD_INTERLACED
2267 : V4L2_FIELD_TOP;
2268 }
2269 switch (field) {
2270 case V4L2_FIELD_TOP:
2271 case V4L2_FIELD_BOTTOM:
2272 case V4L2_FIELD_INTERLACED:
2273 break;
2274 default:
2275 return -EINVAL;
2276 }
2277
2278 /* 4-byte alignment. */
2279 if (NULL == fh->ovfmt)
2280 return -EINVAL;
2281 width_mask = ~0;
2282 switch (fh->ovfmt->depth) {
2283 case 8:
2284 case 24:
2285 width_mask = ~3;
2286 break;
2287 case 16:
2288 width_mask = ~1;
2289 break;
2290 case 32:
2291 break;
2292 default:
2293 BUG();
2294 }
2295
2296 win->w.width -= win->w.left & ~width_mask;
2297 win->w.left = (win->w.left - width_mask - 1) & width_mask;
2298
2299 rc = limit_scaled_size(fh, &win->w.width, &win->w.height,
2300 field, width_mask,
2301 /* width_bias: round down */ 0,
2302 adjust_size, adjust_crop);
2303 if (0 != rc)
2304 return rc;
2305
2306 win->field = field;
2307 return 0;
2308 }
2309
2310 static int setup_window(struct bttv_fh *fh, struct bttv *btv,
2311 struct v4l2_window *win, int fixup)
2312 {
2313 struct v4l2_clip *clips = NULL;
2314 int n,size,retval = 0;
2315
2316 if (NULL == fh->ovfmt)
2317 return -EINVAL;
2318 if (!(fh->ovfmt->flags & FORMAT_FLAGS_PACKED))
2319 return -EINVAL;
2320 retval = verify_window(fh, win,
2321 /* adjust_size */ fixup,
2322 /* adjust_crop */ fixup);
2323 if (0 != retval)
2324 return retval;
2325
2326 /* copy clips -- luckily v4l1 + v4l2 are binary
2327 compatible here ...*/
2328 n = win->clipcount;
2329 size = sizeof(*clips)*(n+4);
2330 clips = kmalloc(size,GFP_KERNEL);
2331 if (NULL == clips)
2332 return -ENOMEM;
2333 if (n > 0) {
2334 if (copy_from_user(clips,win->clips,sizeof(struct v4l2_clip)*n)) {
2335 kfree(clips);
2336 return -EFAULT;
2337 }
2338 }
2339 /* clip against screen */
2340 if (NULL != btv->fbuf.base)
2341 n = btcx_screen_clips(btv->fbuf.fmt.width, btv->fbuf.fmt.height,
2342 &win->w, clips, n);
2343 btcx_sort_clips(clips,n);
2344
2345 /* 4-byte alignments */
2346 switch (fh->ovfmt->depth) {
2347 case 8:
2348 case 24:
2349 btcx_align(&win->w, clips, n, 3);
2350 break;
2351 case 16:
2352 btcx_align(&win->w, clips, n, 1);
2353 break;
2354 case 32:
2355 /* no alignment fixups needed */
2356 break;
2357 default:
2358 BUG();
2359 }
2360
2361 mutex_lock(&fh->cap.vb_lock);
2362 kfree(fh->ov.clips);
2363 fh->ov.clips = clips;
2364 fh->ov.nclips = n;
2365
2366 fh->ov.w = win->w;
2367 fh->ov.field = win->field;
2368 fh->ov.setup_ok = 1;
2369 btv->init.ov.w.width = win->w.width;
2370 btv->init.ov.w.height = win->w.height;
2371 btv->init.ov.field = win->field;
2372
2373 /* update overlay if needed */
2374 retval = 0;
2375 if (check_btres(fh, RESOURCE_OVERLAY)) {
2376 struct bttv_buffer *new;
2377
2378 new = videobuf_sg_alloc(sizeof(*new));
2379 new->crop = btv->crop[!!fh->do_crop].rect;
2380 bttv_overlay_risc(btv, &fh->ov, fh->ovfmt, new);
2381 retval = bttv_switch_overlay(btv,fh,new);
2382 }
2383 mutex_unlock(&fh->cap.vb_lock);
2384 return retval;
2385 }
2386
2387 /* ----------------------------------------------------------------------- */
2388
2389 static struct videobuf_queue* bttv_queue(struct bttv_fh *fh)
2390 {
2391 struct videobuf_queue* q = NULL;
2392
2393 switch (fh->type) {
2394 case V4L2_BUF_TYPE_VIDEO_CAPTURE:
2395 q = &fh->cap;
2396 break;
2397 case V4L2_BUF_TYPE_VBI_CAPTURE:
2398 q = &fh->vbi;
2399 break;
2400 default:
2401 BUG();
2402 }
2403 return q;
2404 }
2405
2406 static int bttv_resource(struct bttv_fh *fh)
2407 {
2408 int res = 0;
2409
2410 switch (fh->type) {
2411 case V4L2_BUF_TYPE_VIDEO_CAPTURE:
2412 res = RESOURCE_VIDEO_STREAM;
2413 break;
2414 case V4L2_BUF_TYPE_VBI_CAPTURE:
2415 res = RESOURCE_VBI;
2416 break;
2417 default:
2418 BUG();
2419 }
2420 return res;
2421 }
2422
2423 static int bttv_switch_type(struct bttv_fh *fh, enum v4l2_buf_type type)
2424 {
2425 struct videobuf_queue *q = bttv_queue(fh);
2426 int res = bttv_resource(fh);
2427
2428 if (check_btres(fh,res))
2429 return -EBUSY;
2430 if (videobuf_queue_is_busy(q))
2431 return -EBUSY;
2432 fh->type = type;
2433 return 0;
2434 }
2435
2436 static void
2437 pix_format_set_size (struct v4l2_pix_format * f,
2438 const struct bttv_format * fmt,
2439 unsigned int width,
2440 unsigned int height)
2441 {
2442 f->width = width;
2443 f->height = height;
2444
2445 if (fmt->flags & FORMAT_FLAGS_PLANAR) {
2446 f->bytesperline = width; /* Y plane */
2447 f->sizeimage = (width * height * fmt->depth) >> 3;
2448 } else {
2449 f->bytesperline = (width * fmt->depth) >> 3;
2450 f->sizeimage = height * f->bytesperline;
2451 }
2452 }
2453
2454 static int bttv_g_fmt_vid_cap(struct file *file, void *priv,
2455 struct v4l2_format *f)
2456 {
2457 struct bttv_fh *fh = priv;
2458
2459 pix_format_set_size(&f->fmt.pix, fh->fmt,
2460 fh->width, fh->height);
2461 f->fmt.pix.field = fh->cap.field;
2462 f->fmt.pix.pixelformat = fh->fmt->fourcc;
2463
2464 return 0;
2465 }
2466
2467 static int bttv_g_fmt_vid_overlay(struct file *file, void *priv,
2468 struct v4l2_format *f)
2469 {
2470 struct bttv_fh *fh = priv;
2471
2472 f->fmt.win.w = fh->ov.w;
2473 f->fmt.win.field = fh->ov.field;
2474
2475 return 0;
2476 }
2477
2478 static int bttv_try_fmt_vid_cap(struct file *file, void *priv,
2479 struct v4l2_format *f)
2480 {
2481 const struct bttv_format *fmt;
2482 struct bttv_fh *fh = priv;
2483 struct bttv *btv = fh->btv;
2484 enum v4l2_field field;
2485 __s32 width, height;
2486 int rc;
2487
2488 fmt = format_by_fourcc(f->fmt.pix.pixelformat);
2489 if (NULL == fmt)
2490 return -EINVAL;
2491
2492 field = f->fmt.pix.field;
2493
2494 if (V4L2_FIELD_ANY == field) {
2495 __s32 height2;
2496
2497 height2 = btv->crop[!!fh->do_crop].rect.height >> 1;
2498 field = (f->fmt.pix.height > height2)
2499 ? V4L2_FIELD_INTERLACED
2500 : V4L2_FIELD_BOTTOM;
2501 }
2502
2503 if (V4L2_FIELD_SEQ_BT == field)
2504 field = V4L2_FIELD_SEQ_TB;
2505
2506 switch (field) {
2507 case V4L2_FIELD_TOP:
2508 case V4L2_FIELD_BOTTOM:
2509 case V4L2_FIELD_ALTERNATE:
2510 case V4L2_FIELD_INTERLACED:
2511 break;
2512 case V4L2_FIELD_SEQ_TB:
2513 if (fmt->flags & FORMAT_FLAGS_PLANAR)
2514 return -EINVAL;
2515 break;
2516 default:
2517 return -EINVAL;
2518 }
2519
2520 width = f->fmt.pix.width;
2521 height = f->fmt.pix.height;
2522
2523 rc = limit_scaled_size(fh, &width, &height, field,
2524 /* width_mask: 4 pixels */ ~3,
2525 /* width_bias: nearest */ 2,
2526 /* adjust_size */ 1,
2527 /* adjust_crop */ 0);
2528 if (0 != rc)
2529 return rc;
2530
2531 /* update data for the application */
2532 f->fmt.pix.field = field;
2533 pix_format_set_size(&f->fmt.pix, fmt, width, height);
2534
2535 return 0;
2536 }
2537
2538 static int bttv_try_fmt_vid_overlay(struct file *file, void *priv,
2539 struct v4l2_format *f)
2540 {
2541 struct bttv_fh *fh = priv;
2542
2543 return verify_window(fh, &f->fmt.win,
2544 /* adjust_size */ 1,
2545 /* adjust_crop */ 0);
2546 }
2547
2548 static int bttv_s_fmt_vid_cap(struct file *file, void *priv,
2549 struct v4l2_format *f)
2550 {
2551 int retval;
2552 const struct bttv_format *fmt;
2553 struct bttv_fh *fh = priv;
2554 struct bttv *btv = fh->btv;
2555 __s32 width, height;
2556 enum v4l2_field field;
2557
2558 retval = bttv_switch_type(fh, f->type);
2559 if (0 != retval)
2560 return retval;
2561
2562 retval = bttv_try_fmt_vid_cap(file, priv, f);
2563 if (0 != retval)
2564 return retval;
2565
2566 width = f->fmt.pix.width;
2567 height = f->fmt.pix.height;
2568 field = f->fmt.pix.field;
2569
2570 retval = limit_scaled_size(fh, &width, &height, f->fmt.pix.field,
2571 /* width_mask: 4 pixels */ ~3,
2572 /* width_bias: nearest */ 2,
2573 /* adjust_size */ 1,
2574 /* adjust_crop */ 1);
2575 if (0 != retval)
2576 return retval;
2577
2578 f->fmt.pix.field = field;
2579
2580 fmt = format_by_fourcc(f->fmt.pix.pixelformat);
2581
2582 /* update our state informations */
2583 mutex_lock(&fh->cap.vb_lock);
2584 fh->fmt = fmt;
2585 fh->cap.field = f->fmt.pix.field;
2586 fh->cap.last = V4L2_FIELD_NONE;
2587 fh->width = f->fmt.pix.width;
2588 fh->height = f->fmt.pix.height;
2589 btv->init.fmt = fmt;
2590 btv->init.width = f->fmt.pix.width;
2591 btv->init.height = f->fmt.pix.height;
2592 mutex_unlock(&fh->cap.vb_lock);
2593
2594 return 0;
2595 }
2596
2597 static int bttv_s_fmt_vid_overlay(struct file *file, void *priv,
2598 struct v4l2_format *f)
2599 {
2600 struct bttv_fh *fh = priv;
2601 struct bttv *btv = fh->btv;
2602
2603 if (no_overlay > 0) {
2604 printk(KERN_ERR "V4L2_BUF_TYPE_VIDEO_OVERLAY: no_overlay\n");
2605 return -EINVAL;
2606 }
2607
2608 return setup_window(fh, btv, &f->fmt.win, 1);
2609 }
2610
2611 #ifdef CONFIG_VIDEO_V4L1_COMPAT
2612 static int vidiocgmbuf(struct file *file, void *priv, struct video_mbuf *mbuf)
2613 {
2614 int retval;
2615 unsigned int i;
2616 struct bttv_fh *fh = priv;
2617
2618 mutex_lock(&fh->cap.vb_lock);
2619 retval = __videobuf_mmap_setup(&fh->cap, gbuffers, gbufsize,
2620 V4L2_MEMORY_MMAP);
2621 if (retval < 0) {
2622 mutex_unlock(&fh->cap.vb_lock);
2623 return retval;
2624 }
2625
2626 gbuffers = retval;
2627 memset(mbuf, 0, sizeof(*mbuf));
2628 mbuf->frames = gbuffers;
2629 mbuf->size = gbuffers * gbufsize;
2630
2631 for (i = 0; i < gbuffers; i++)
2632 mbuf->offsets[i] = i * gbufsize;
2633
2634 mutex_unlock(&fh->cap.vb_lock);
2635 return 0;
2636 }
2637 #endif
2638
2639 static int bttv_querycap(struct file *file, void *priv,
2640 struct v4l2_capability *cap)
2641 {
2642 struct bttv_fh *fh = priv;
2643 struct bttv *btv = fh->btv;
2644
2645 if (0 == v4l2)
2646 return -EINVAL;
2647
2648 strlcpy(cap->driver, "bttv", sizeof(cap->driver));
2649 strlcpy(cap->card, btv->video_dev->name, sizeof(cap->card));
2650 snprintf(cap->bus_info, sizeof(cap->bus_info),
2651 "PCI:%s", pci_name(btv->c.pci));
2652 cap->version = BTTV_VERSION_CODE;
2653 cap->capabilities =
2654 V4L2_CAP_VIDEO_CAPTURE |
2655 V4L2_CAP_VBI_CAPTURE |
2656 V4L2_CAP_READWRITE |
2657 V4L2_CAP_STREAMING;
2658 if (no_overlay <= 0)
2659 cap->capabilities |= V4L2_CAP_VIDEO_OVERLAY;
2660
2661 if (bttv_tvcards[btv->c.type].tuner != UNSET &&
2662 bttv_tvcards[btv->c.type].tuner != TUNER_ABSENT)
2663 cap->capabilities |= V4L2_CAP_TUNER;
2664 return 0;
2665 }
2666
2667 static int bttv_enum_fmt_cap_ovr(struct v4l2_fmtdesc *f)
2668 {
2669 int index = -1, i;
2670
2671 for (i = 0; i < FORMATS; i++) {
2672 if (formats[i].fourcc != -1)
2673 index++;
2674 if ((unsigned int)index == f->index)
2675 break;
2676 }
2677 if (FORMATS == i)
2678 return -EINVAL;
2679
2680 f->pixelformat = formats[i].fourcc;
2681 strlcpy(f->description, formats[i].name, sizeof(f->description));
2682
2683 return i;
2684 }
2685
2686 static int bttv_enum_fmt_vid_cap(struct file *file, void *priv,
2687 struct v4l2_fmtdesc *f)
2688 {
2689 int rc = bttv_enum_fmt_cap_ovr(f);
2690
2691 if (rc < 0)
2692 return rc;
2693
2694 return 0;
2695 }
2696
2697 static int bttv_enum_fmt_vid_overlay(struct file *file, void *priv,
2698 struct v4l2_fmtdesc *f)
2699 {
2700 int rc;
2701
2702 if (no_overlay > 0) {
2703 printk(KERN_ERR "V4L2_BUF_TYPE_VIDEO_OVERLAY: no_overlay\n");
2704 return -EINVAL;
2705 }
2706
2707 rc = bttv_enum_fmt_cap_ovr(f);
2708
2709 if (rc < 0)
2710 return rc;
2711
2712 if (!(formats[rc].flags & FORMAT_FLAGS_PACKED))
2713 return -EINVAL;
2714
2715 return 0;
2716 }
2717
2718 static int bttv_g_fbuf(struct file *file, void *f,
2719 struct v4l2_framebuffer *fb)
2720 {
2721 struct bttv_fh *fh = f;
2722 struct bttv *btv = fh->btv;
2723
2724 *fb = btv->fbuf;
2725 fb->capability = V4L2_FBUF_CAP_LIST_CLIPPING;
2726 if (fh->ovfmt)
2727 fb->fmt.pixelformat = fh->ovfmt->fourcc;
2728 return 0;
2729 }
2730
2731 static int bttv_overlay(struct file *file, void *f, unsigned int on)
2732 {
2733 struct bttv_fh *fh = f;
2734 struct bttv *btv = fh->btv;
2735 struct bttv_buffer *new;
2736 int retval;
2737
2738 if (on) {
2739 /* verify args */
2740 if (NULL == btv->fbuf.base)
2741 return -EINVAL;
2742 if (!fh->ov.setup_ok) {
2743 dprintk("bttv%d: overlay: !setup_ok\n", btv->c.nr);
2744 return -EINVAL;
2745 }
2746 }
2747
2748 if (!check_alloc_btres(btv, fh, RESOURCE_OVERLAY))
2749 return -EBUSY;
2750
2751 mutex_lock(&fh->cap.vb_lock);
2752 if (on) {
2753 fh->ov.tvnorm = btv->tvnorm;
2754 new = videobuf_sg_alloc(sizeof(*new));
2755 new->crop = btv->crop[!!fh->do_crop].rect;
2756 bttv_overlay_risc(btv, &fh->ov, fh->ovfmt, new);
2757 } else {
2758 new = NULL;
2759 }
2760
2761 /* switch over */
2762 retval = bttv_switch_overlay(btv, fh, new);
2763 mutex_unlock(&fh->cap.vb_lock);
2764 return retval;
2765 }
2766
2767 static int bttv_s_fbuf(struct file *file, void *f,
2768 struct v4l2_framebuffer *fb)
2769 {
2770 struct bttv_fh *fh = f;
2771 struct bttv *btv = fh->btv;
2772 const struct bttv_format *fmt;
2773 int retval;
2774
2775 if (!capable(CAP_SYS_ADMIN) &&
2776 !capable(CAP_SYS_RAWIO))
2777 return -EPERM;
2778
2779 /* check args */
2780 fmt = format_by_fourcc(fb->fmt.pixelformat);
2781 if (NULL == fmt)
2782 return -EINVAL;
2783 if (0 == (fmt->flags & FORMAT_FLAGS_PACKED))
2784 return -EINVAL;
2785
2786 retval = -EINVAL;
2787 if (fb->flags & V4L2_FBUF_FLAG_OVERLAY) {
2788 __s32 width = fb->fmt.width;
2789 __s32 height = fb->fmt.height;
2790
2791 retval = limit_scaled_size(fh, &width, &height,
2792 V4L2_FIELD_INTERLACED,
2793 /* width_mask */ ~3,
2794 /* width_bias */ 2,
2795 /* adjust_size */ 0,
2796 /* adjust_crop */ 0);
2797 if (0 != retval)
2798 return retval;
2799 }
2800
2801 /* ok, accept it */
2802 mutex_lock(&fh->cap.vb_lock);
2803 btv->fbuf.base = fb->base;
2804 btv->fbuf.fmt.width = fb->fmt.width;
2805 btv->fbuf.fmt.height = fb->fmt.height;
2806 if (0 != fb->fmt.bytesperline)
2807 btv->fbuf.fmt.bytesperline = fb->fmt.bytesperline;
2808 else
2809 btv->fbuf.fmt.bytesperline = btv->fbuf.fmt.width*fmt->depth/8;
2810
2811 retval = 0;
2812 fh->ovfmt = fmt;
2813 btv->init.ovfmt = fmt;
2814 if (fb->flags & V4L2_FBUF_FLAG_OVERLAY) {
2815 fh->ov.w.left = 0;
2816 fh->ov.w.top = 0;
2817 fh->ov.w.width = fb->fmt.width;
2818 fh->ov.w.height = fb->fmt.height;
2819 btv->init.ov.w.width = fb->fmt.width;
2820 btv->init.ov.w.height = fb->fmt.height;
2821 kfree(fh->ov.clips);
2822 fh->ov.clips = NULL;
2823 fh->ov.nclips = 0;
2824
2825 if (check_btres(fh, RESOURCE_OVERLAY)) {
2826 struct bttv_buffer *new;
2827
2828 new = videobuf_sg_alloc(sizeof(*new));
2829 new->crop = btv->crop[!!fh->do_crop].rect;
2830 bttv_overlay_risc(btv, &fh->ov, fh->ovfmt, new);
2831 retval = bttv_switch_overlay(btv, fh, new);
2832 }
2833 }
2834 mutex_unlock(&fh->cap.vb_lock);
2835 return retval;
2836 }
2837
2838 static int bttv_reqbufs(struct file *file, void *priv,
2839 struct v4l2_requestbuffers *p)
2840 {
2841 struct bttv_fh *fh = priv;
2842 return videobuf_reqbufs(bttv_queue(fh), p);
2843 }
2844
2845 static int bttv_querybuf(struct file *file, void *priv,
2846 struct v4l2_buffer *b)
2847 {
2848 struct bttv_fh *fh = priv;
2849 return videobuf_querybuf(bttv_queue(fh), b);
2850 }
2851
2852 static int bttv_qbuf(struct file *file, void *priv, struct v4l2_buffer *b)
2853 {
2854 struct bttv_fh *fh = priv;
2855 struct bttv *btv = fh->btv;
2856 int res = bttv_resource(fh);
2857
2858 if (!check_alloc_btres(btv, fh, res))
2859 return -EBUSY;
2860
2861 return videobuf_qbuf(bttv_queue(fh), b);
2862 }
2863
2864 static int bttv_dqbuf(struct file *file, void *priv, struct v4l2_buffer *b)
2865 {
2866 struct bttv_fh *fh = priv;
2867 return videobuf_dqbuf(bttv_queue(fh), b,
2868 file->f_flags & O_NONBLOCK);
2869 }
2870
2871 static int bttv_streamon(struct file *file, void *priv,
2872 enum v4l2_buf_type type)
2873 {
2874 struct bttv_fh *fh = priv;
2875 struct bttv *btv = fh->btv;
2876 int res = bttv_resource(fh);
2877
2878 if (!check_alloc_btres(btv, fh, res))
2879 return -EBUSY;
2880 return videobuf_streamon(bttv_queue(fh));
2881 }
2882
2883
2884 static int bttv_streamoff(struct file *file, void *priv,
2885 enum v4l2_buf_type type)
2886 {
2887 struct bttv_fh *fh = priv;
2888 struct bttv *btv = fh->btv;
2889 int retval;
2890 int res = bttv_resource(fh);
2891
2892
2893 retval = videobuf_streamoff(bttv_queue(fh));
2894 if (retval < 0)
2895 return retval;
2896 free_btres(btv, fh, res);
2897 return 0;
2898 }
2899
2900 static int bttv_queryctrl(struct file *file, void *priv,
2901 struct v4l2_queryctrl *c)
2902 {
2903 struct bttv_fh *fh = priv;
2904 struct bttv *btv = fh->btv;
2905 const struct v4l2_queryctrl *ctrl;
2906
2907 if ((c->id < V4L2_CID_BASE ||
2908 c->id >= V4L2_CID_LASTP1) &&
2909 (c->id < V4L2_CID_PRIVATE_BASE ||
2910 c->id >= V4L2_CID_PRIVATE_LASTP1))
2911 return -EINVAL;
2912
2913 if (!btv->volume_gpio && (c->id == V4L2_CID_AUDIO_VOLUME))
2914 *c = no_ctl;
2915 else {
2916 ctrl = ctrl_by_id(c->id);
2917
2918 *c = (NULL != ctrl) ? *ctrl : no_ctl;
2919 }
2920
2921 return 0;
2922 }
2923
2924 static int bttv_g_parm(struct file *file, void *f,
2925 struct v4l2_streamparm *parm)
2926 {
2927 struct bttv_fh *fh = f;
2928 struct bttv *btv = fh->btv;
2929 struct v4l2_standard s;
2930
2931 if (parm->type != V4L2_BUF_TYPE_VIDEO_CAPTURE)
2932 return -EINVAL;
2933 v4l2_video_std_construct(&s, bttv_tvnorms[btv->tvnorm].v4l2_id,
2934 bttv_tvnorms[btv->tvnorm].name);
2935 parm->parm.capture.timeperframe = s.frameperiod;
2936 return 0;
2937 }
2938
2939 static int bttv_g_tuner(struct file *file, void *priv,
2940 struct v4l2_tuner *t)
2941 {
2942 struct bttv_fh *fh = priv;
2943 struct bttv *btv = fh->btv;
2944
2945 if (UNSET == bttv_tvcards[btv->c.type].tuner)
2946 return -EINVAL;
2947 if (0 != t->index)
2948 return -EINVAL;
2949
2950 mutex_lock(&btv->lock);
2951 memset(t, 0, sizeof(*t));
2952 t->rxsubchans = V4L2_TUNER_SUB_MONO;
2953 bttv_call_i2c_clients(btv, VIDIOC_G_TUNER, t);
2954 strcpy(t->name, "Television");
2955 t->capability = V4L2_TUNER_CAP_NORM;
2956 t->type = V4L2_TUNER_ANALOG_TV;
2957 if (btread(BT848_DSTATUS)&BT848_DSTATUS_HLOC)
2958 t->signal = 0xffff;
2959
2960 if (btv->audio_mode_gpio)
2961 btv->audio_mode_gpio(btv, t, 0);
2962
2963 mutex_unlock(&btv->lock);
2964 return 0;
2965 }
2966
2967 static int bttv_g_priority(struct file *file, void *f, enum v4l2_priority *p)
2968 {
2969 struct bttv_fh *fh = f;
2970 struct bttv *btv = fh->btv;
2971
2972 *p = v4l2_prio_max(&btv->prio);
2973
2974 return 0;
2975 }
2976
2977 static int bttv_s_priority(struct file *file, void *f,
2978 enum v4l2_priority prio)
2979 {
2980 struct bttv_fh *fh = f;
2981 struct bttv *btv = fh->btv;
2982
2983 return v4l2_prio_change(&btv->prio, &fh->prio, prio);
2984 }
2985
2986 static int bttv_cropcap(struct file *file, void *priv,
2987 struct v4l2_cropcap *cap)
2988 {
2989 struct bttv_fh *fh = priv;
2990 struct bttv *btv = fh->btv;
2991
2992 if (cap->type != V4L2_BUF_TYPE_VIDEO_CAPTURE &&
2993 cap->type != V4L2_BUF_TYPE_VIDEO_OVERLAY)
2994 return -EINVAL;
2995
2996 *cap = bttv_tvnorms[btv->tvnorm].cropcap;
2997
2998 return 0;
2999 }
3000
3001 static int bttv_g_crop(struct file *file, void *f, struct v4l2_crop *crop)
3002 {
3003 struct bttv_fh *fh = f;
3004 struct bttv *btv = fh->btv;
3005
3006 if (crop->type != V4L2_BUF_TYPE_VIDEO_CAPTURE &&
3007 crop->type != V4L2_BUF_TYPE_VIDEO_OVERLAY)
3008 return -EINVAL;
3009
3010 /* No fh->do_crop = 1; because btv->crop[1] may be
3011 inconsistent with fh->width or fh->height and apps
3012 do not expect a change here. */
3013
3014 crop->c = btv->crop[!!fh->do_crop].rect;
3015
3016 return 0;
3017 }
3018
3019 static int bttv_s_crop(struct file *file, void *f, struct v4l2_crop *crop)
3020 {
3021 struct bttv_fh *fh = f;
3022 struct bttv *btv = fh->btv;
3023 const struct v4l2_rect *b;
3024 int retval;
3025 struct bttv_crop c;
3026 __s32 b_left;
3027 __s32 b_top;
3028 __s32 b_right;
3029 __s32 b_bottom;
3030
3031 if (crop->type != V4L2_BUF_TYPE_VIDEO_CAPTURE &&
3032 crop->type != V4L2_BUF_TYPE_VIDEO_OVERLAY)
3033 return -EINVAL;
3034
3035 retval = v4l2_prio_check(&btv->prio, &fh->prio);
3036 if (0 != retval)
3037 return retval;
3038
3039 /* Make sure tvnorm, vbi_end and the current cropping
3040 parameters remain consistent until we're done. Note
3041 read() may change vbi_end in check_alloc_btres(). */
3042 mutex_lock(&btv->lock);
3043
3044 retval = -EBUSY;
3045
3046 if (locked_btres(fh->btv, VIDEO_RESOURCES)) {
3047 mutex_unlock(&btv->lock);
3048 return retval;
3049 }
3050
3051 b = &bttv_tvnorms[btv->tvnorm].cropcap.bounds;
3052
3053 b_left = b->left;
3054 b_right = b_left + b->width;
3055 b_bottom = b->top + b->height;
3056
3057 b_top = max(b->top, btv->vbi_end);
3058 if (b_top + 32 >= b_bottom) {
3059 mutex_unlock(&btv->lock);
3060 return retval;
3061 }
3062
3063 /* Min. scaled size 48 x 32. */
3064 c.rect.left = clamp(crop->c.left, b_left, b_right - 48);
3065 c.rect.left = min(c.rect.left, (__s32) MAX_HDELAY);
3066
3067 c.rect.width = clamp(crop->c.width,
3068 48, b_right - c.rect.left);
3069
3070 c.rect.top = clamp(crop->c.top, b_top, b_bottom - 32);
3071 /* Top and height must be a multiple of two. */
3072 c.rect.top = (c.rect.top + 1) & ~1;
3073
3074 c.rect.height = clamp(crop->c.height,
3075 32, b_bottom - c.rect.top);
3076 c.rect.height = (c.rect.height + 1) & ~1;
3077
3078 bttv_crop_calc_limits(&c);
3079
3080 btv->crop[1] = c;
3081
3082 mutex_unlock(&btv->lock);
3083
3084 fh->do_crop = 1;
3085
3086 mutex_lock(&fh->cap.vb_lock);
3087
3088 if (fh->width < c.min_scaled_width) {
3089 fh->width = c.min_scaled_width;
3090 btv->init.width = c.min_scaled_width;
3091 } else if (fh->width > c.max_scaled_width) {
3092 fh->width = c.max_scaled_width;
3093 btv->init.width = c.max_scaled_width;
3094 }
3095
3096 if (fh->height < c.min_scaled_height) {
3097 fh->height = c.min_scaled_height;
3098 btv->init.height = c.min_scaled_height;
3099 } else if (fh->height > c.max_scaled_height) {
3100 fh->height = c.max_scaled_height;
3101 btv->init.height = c.max_scaled_height;
3102 }
3103
3104 mutex_unlock(&fh->cap.vb_lock);
3105
3106 return 0;
3107 }
3108
3109 static int bttv_g_audio(struct file *file, void *priv, struct v4l2_audio *a)
3110 {
3111 if (unlikely(a->index))
3112 return -EINVAL;
3113
3114 strcpy(a->name, "audio");
3115 return 0;
3116 }
3117
3118 static int bttv_s_audio(struct file *file, void *priv, struct v4l2_audio *a)
3119 {
3120 if (unlikely(a->index))
3121 return -EINVAL;
3122
3123 return 0;
3124 }
3125
3126 static ssize_t bttv_read(struct file *file, char __user *data,
3127 size_t count, loff_t *ppos)
3128 {
3129 struct bttv_fh *fh = file->private_data;
3130 int retval = 0;
3131
3132 if (fh->btv->errors)
3133 bttv_reinit_bt848(fh->btv);
3134 dprintk("bttv%d: read count=%d type=%s\n",
3135 fh->btv->c.nr,(int)count,v4l2_type_names[fh->type]);
3136
3137 switch (fh->type) {
3138 case V4L2_BUF_TYPE_VIDEO_CAPTURE:
3139 if (!check_alloc_btres(fh->btv, fh, RESOURCE_VIDEO_READ)) {
3140 /* VIDEO_READ in use by another fh,
3141 or VIDEO_STREAM by any fh. */
3142 return -EBUSY;
3143 }
3144 retval = videobuf_read_one(&fh->cap, data, count, ppos,
3145 file->f_flags & O_NONBLOCK);
3146 free_btres(fh->btv, fh, RESOURCE_VIDEO_READ);
3147 break;
3148 case V4L2_BUF_TYPE_VBI_CAPTURE:
3149 if (!check_alloc_btres(fh->btv,fh,RESOURCE_VBI))
3150 return -EBUSY;
3151 retval = videobuf_read_stream(&fh->vbi, data, count, ppos, 1,
3152 file->f_flags & O_NONBLOCK);
3153 break;
3154 default:
3155 BUG();
3156 }
3157 return retval;
3158 }
3159
3160 static unsigned int bttv_poll(struct file *file, poll_table *wait)
3161 {
3162 struct bttv_fh *fh = file->private_data;
3163 struct bttv_buffer *buf;
3164 enum v4l2_field field;
3165
3166 if (V4L2_BUF_TYPE_VBI_CAPTURE == fh->type) {
3167 if (!check_alloc_btres(fh->btv,fh,RESOURCE_VBI))
3168 return POLLERR;
3169 return videobuf_poll_stream(file, &fh->vbi, wait);
3170 }
3171
3172 if (check_btres(fh,RESOURCE_VIDEO_STREAM)) {
3173 /* streaming capture */
3174 if (list_empty(&fh->cap.stream))
3175 return POLLERR;
3176 buf = list_entry(fh->cap.stream.next,struct bttv_buffer,vb.stream);
3177 } else {
3178 /* read() capture */
3179 mutex_lock(&fh->cap.vb_lock);
3180 if (NULL == fh->cap.read_buf) {
3181 /* need to capture a new frame */
3182 if (locked_btres(fh->btv,RESOURCE_VIDEO_STREAM))
3183 goto err;
3184 fh->cap.read_buf = videobuf_sg_alloc(fh->cap.msize);
3185 if (NULL == fh->cap.read_buf)
3186 goto err;
3187 fh->cap.read_buf->memory = V4L2_MEMORY_USERPTR;
3188 field = videobuf_next_field(&fh->cap);
3189 if (0 != fh->cap.ops->buf_prepare(&fh->cap,fh->cap.read_buf,field)) {
3190 kfree (fh->cap.read_buf);
3191 fh->cap.read_buf = NULL;
3192 goto err;
3193 }
3194 fh->cap.ops->buf_queue(&fh->cap,fh->cap.read_buf);
3195 fh->cap.read_off = 0;
3196 }
3197 mutex_unlock(&fh->cap.vb_lock);
3198 buf = (struct bttv_buffer*)fh->cap.read_buf;
3199 }
3200
3201 poll_wait(file, &buf->vb.done, wait);
3202 if (buf->vb.state == VIDEOBUF_DONE ||
3203 buf->vb.state == VIDEOBUF_ERROR)
3204 return POLLIN|POLLRDNORM;
3205 return 0;
3206 err:
3207 mutex_unlock(&fh->cap.vb_lock);
3208 return POLLERR;
3209 }
3210
3211 static int bttv_open(struct file *file)
3212 {
3213 int minor = video_devdata(file)->minor;
3214 struct bttv *btv = NULL;
3215 struct bttv_fh *fh;
3216 enum v4l2_buf_type type = 0;
3217 unsigned int i;
3218
3219 dprintk(KERN_DEBUG "bttv: open minor=%d\n",minor);
3220
3221 lock_kernel();
3222 for (i = 0; i < bttv_num; i++) {
3223 if (bttvs[i].video_dev &&
3224 bttvs[i].video_dev->minor == minor) {
3225 btv = &bttvs[i];
3226 type = V4L2_BUF_TYPE_VIDEO_CAPTURE;
3227 break;
3228 }
3229 if (bttvs[i].vbi_dev &&
3230 bttvs[i].vbi_dev->minor == minor) {
3231 btv = &bttvs[i];
3232 type = V4L2_BUF_TYPE_VBI_CAPTURE;
3233 break;
3234 }
3235 }
3236 if (NULL == btv) {
3237 unlock_kernel();
3238 return -ENODEV;
3239 }
3240
3241 dprintk(KERN_DEBUG "bttv%d: open called (type=%s)\n",
3242 btv->c.nr,v4l2_type_names[type]);
3243
3244 /* allocate per filehandle data */
3245 fh = kmalloc(sizeof(*fh),GFP_KERNEL);
3246 if (NULL == fh) {
3247 unlock_kernel();
3248 return -ENOMEM;
3249 }
3250 file->private_data = fh;
3251 *fh = btv->init;
3252 fh->type = type;
3253 fh->ov.setup_ok = 0;
3254 v4l2_prio_open(&btv->prio,&fh->prio);
3255
3256 videobuf_queue_sg_init(&fh->cap, &bttv_video_qops,
3257 &btv->c.pci->dev, &btv->s_lock,
3258 V4L2_BUF_TYPE_VIDEO_CAPTURE,
3259 V4L2_FIELD_INTERLACED,
3260 sizeof(struct bttv_buffer),
3261 fh);
3262 videobuf_queue_sg_init(&fh->vbi, &bttv_vbi_qops,
3263 &btv->c.pci->dev, &btv->s_lock,
3264 V4L2_BUF_TYPE_VBI_CAPTURE,
3265 V4L2_FIELD_SEQ_TB,
3266 sizeof(struct bttv_buffer),
3267 fh);
3268 set_tvnorm(btv,btv->tvnorm);
3269 set_input(btv, btv->input, btv->tvnorm);
3270
3271 btv->users++;
3272
3273 /* The V4L2 spec requires one global set of cropping parameters
3274 which only change on request. These are stored in btv->crop[1].
3275 However for compatibility with V4L apps and cropping unaware
3276 V4L2 apps we now reset the cropping parameters as seen through
3277 this fh, which is to say VIDIOC_G_CROP and scaling limit checks
3278 will use btv->crop[0], the default cropping parameters for the
3279 current video standard, and VIDIOC_S_FMT will not implicitely
3280 change the cropping parameters until VIDIOC_S_CROP has been
3281 called. */
3282 fh->do_crop = !reset_crop; /* module parameter */
3283
3284 /* Likewise there should be one global set of VBI capture
3285 parameters, but for compatibility with V4L apps and earlier
3286 driver versions each fh has its own parameters. */
3287 bttv_vbi_fmt_reset(&fh->vbi_fmt, btv->tvnorm);
3288
3289 bttv_field_count(btv);
3290 unlock_kernel();
3291 return 0;
3292 }
3293
3294 static int bttv_release(struct file *file)
3295 {
3296 struct bttv_fh *fh = file->private_data;
3297 struct bttv *btv = fh->btv;
3298
3299 /* turn off overlay */
3300 if (check_btres(fh, RESOURCE_OVERLAY))
3301 bttv_switch_overlay(btv,fh,NULL);
3302
3303 /* stop video capture */
3304 if (check_btres(fh, RESOURCE_VIDEO_STREAM)) {
3305 videobuf_streamoff(&fh->cap);
3306 free_btres(btv,fh,RESOURCE_VIDEO_STREAM);
3307 }
3308 if (fh->cap.read_buf) {
3309 buffer_release(&fh->cap,fh->cap.read_buf);
3310 kfree(fh->cap.read_buf);
3311 }
3312 if (check_btres(fh, RESOURCE_VIDEO_READ)) {
3313 free_btres(btv, fh, RESOURCE_VIDEO_READ);
3314 }
3315
3316 /* stop vbi capture */
3317 if (check_btres(fh, RESOURCE_VBI)) {
3318 videobuf_stop(&fh->vbi);
3319 free_btres(btv,fh,RESOURCE_VBI);
3320 }
3321
3322 /* free stuff */
3323 videobuf_mmap_free(&fh->cap);
3324 videobuf_mmap_free(&fh->vbi);
3325 v4l2_prio_close(&btv->prio,&fh->prio);
3326 file->private_data = NULL;
3327 kfree(fh);
3328
3329 btv->users--;
3330 bttv_field_count(btv);
3331
3332 if (!btv->users)
3333 audio_mute(btv, 1);
3334
3335 return 0;
3336 }
3337
3338 static int
3339 bttv_mmap(struct file *file, struct vm_area_struct *vma)
3340 {
3341 struct bttv_fh *fh = file->private_data;
3342
3343 dprintk("bttv%d: mmap type=%s 0x%lx+%ld\n",
3344 fh->btv->c.nr, v4l2_type_names[fh->type],
3345 vma->vm_start, vma->vm_end - vma->vm_start);
3346 return videobuf_mmap_mapper(bttv_queue(fh),vma);
3347 }
3348
3349 static const struct v4l2_file_operations bttv_fops =
3350 {
3351 .owner = THIS_MODULE,
3352 .open = bttv_open,
3353 .release = bttv_release,
3354 .ioctl = video_ioctl2,
3355 .read = bttv_read,
3356 .mmap = bttv_mmap,
3357 .poll = bttv_poll,
3358 };
3359
3360 static const struct v4l2_ioctl_ops bttv_ioctl_ops = {
3361 .vidioc_querycap = bttv_querycap,
3362 .vidioc_enum_fmt_vid_cap = bttv_enum_fmt_vid_cap,
3363 .vidioc_g_fmt_vid_cap = bttv_g_fmt_vid_cap,
3364 .vidioc_try_fmt_vid_cap = bttv_try_fmt_vid_cap,
3365 .vidioc_s_fmt_vid_cap = bttv_s_fmt_vid_cap,
3366 .vidioc_enum_fmt_vid_overlay = bttv_enum_fmt_vid_overlay,
3367 .vidioc_g_fmt_vid_overlay = bttv_g_fmt_vid_overlay,
3368 .vidioc_try_fmt_vid_overlay = bttv_try_fmt_vid_overlay,
3369 .vidioc_s_fmt_vid_overlay = bttv_s_fmt_vid_overlay,
3370 .vidioc_g_fmt_vbi_cap = bttv_g_fmt_vbi_cap,
3371 .vidioc_try_fmt_vbi_cap = bttv_try_fmt_vbi_cap,
3372 .vidioc_s_fmt_vbi_cap = bttv_s_fmt_vbi_cap,
3373 .vidioc_g_audio = bttv_g_audio,
3374 .vidioc_s_audio = bttv_s_audio,
3375 .vidioc_cropcap = bttv_cropcap,
3376 .vidioc_reqbufs = bttv_reqbufs,
3377 .vidioc_querybuf = bttv_querybuf,
3378 .vidioc_qbuf = bttv_qbuf,
3379 .vidioc_dqbuf = bttv_dqbuf,
3380 .vidioc_s_std = bttv_s_std,
3381 .vidioc_enum_input = bttv_enum_input,
3382 .vidioc_g_input = bttv_g_input,
3383 .vidioc_s_input = bttv_s_input,
3384 .vidioc_queryctrl = bttv_queryctrl,
3385 .vidioc_g_ctrl = bttv_g_ctrl,
3386 .vidioc_s_ctrl = bttv_s_ctrl,
3387 .vidioc_streamon = bttv_streamon,
3388 .vidioc_streamoff = bttv_streamoff,
3389 .vidioc_g_tuner = bttv_g_tuner,
3390 .vidioc_s_tuner = bttv_s_tuner,
3391 #ifdef CONFIG_VIDEO_V4L1_COMPAT
3392 .vidiocgmbuf = vidiocgmbuf,
3393 #endif
3394 .vidioc_g_crop = bttv_g_crop,
3395 .vidioc_s_crop = bttv_s_crop,
3396 .vidioc_g_fbuf = bttv_g_fbuf,
3397 .vidioc_s_fbuf = bttv_s_fbuf,
3398 .vidioc_overlay = bttv_overlay,
3399 .vidioc_g_priority = bttv_g_priority,
3400 .vidioc_s_priority = bttv_s_priority,
3401 .vidioc_g_parm = bttv_g_parm,
3402 .vidioc_g_frequency = bttv_g_frequency,
3403 .vidioc_s_frequency = bttv_s_frequency,
3404 .vidioc_log_status = bttv_log_status,
3405 .vidioc_querystd = bttv_querystd,
3406 #ifdef CONFIG_VIDEO_ADV_DEBUG
3407 .vidioc_g_register = bttv_g_register,
3408 .vidioc_s_register = bttv_s_register,
3409 #endif
3410 };
3411
3412 static struct video_device bttv_video_template = {
3413 .fops = &bttv_fops,
3414 .minor = -1,
3415 .ioctl_ops = &bttv_ioctl_ops,
3416 .tvnorms = BTTV_NORMS,
3417 .current_norm = V4L2_STD_PAL,
3418 };
3419
3420 /* ----------------------------------------------------------------------- */
3421 /* radio interface */
3422
3423 static int radio_open(struct file *file)
3424 {
3425 int minor = video_devdata(file)->minor;
3426 struct bttv *btv = NULL;
3427 struct bttv_fh *fh;
3428 unsigned int i;
3429
3430 dprintk("bttv: open minor=%d\n",minor);
3431
3432 lock_kernel();
3433 for (i = 0; i < bttv_num; i++) {
3434 if (bttvs[i].radio_dev && bttvs[i].radio_dev->minor == minor) {
3435 btv = &bttvs[i];
3436 break;
3437 }
3438 }
3439 if (NULL == btv) {
3440 unlock_kernel();
3441 return -ENODEV;
3442 }
3443
3444 dprintk("bttv%d: open called (radio)\n",btv->c.nr);
3445
3446 /* allocate per filehandle data */
3447 fh = kmalloc(sizeof(*fh), GFP_KERNEL);
3448 if (NULL == fh) {
3449 unlock_kernel();
3450 return -ENOMEM;
3451 }
3452 file->private_data = fh;
3453 *fh = btv->init;
3454 v4l2_prio_open(&btv->prio, &fh->prio);
3455
3456 mutex_lock(&btv->lock);
3457
3458 btv->radio_user++;
3459
3460 bttv_call_i2c_clients(btv,AUDC_SET_RADIO,NULL);
3461 audio_input(btv,TVAUDIO_INPUT_RADIO);
3462
3463 mutex_unlock(&btv->lock);
3464 unlock_kernel();
3465 return 0;
3466 }
3467
3468 static int radio_release(struct file *file)
3469 {
3470 struct bttv_fh *fh = file->private_data;
3471 struct bttv *btv = fh->btv;
3472 struct rds_command cmd;
3473
3474 file->private_data = NULL;
3475 kfree(fh);
3476
3477 btv->radio_user--;
3478
3479 bttv_call_i2c_clients(btv, RDS_CMD_CLOSE, &cmd);
3480
3481 return 0;
3482 }
3483
3484 static int radio_querycap(struct file *file, void *priv,
3485 struct v4l2_capability *cap)
3486 {
3487 struct bttv_fh *fh = priv;
3488 struct bttv *btv = fh->btv;
3489
3490 strcpy(cap->driver, "bttv");
3491 strlcpy(cap->card, btv->radio_dev->name, sizeof(cap->card));
3492 sprintf(cap->bus_info, "PCI:%s", pci_name(btv->c.pci));
3493 cap->version = BTTV_VERSION_CODE;
3494 cap->capabilities = V4L2_CAP_TUNER;
3495
3496 return 0;
3497 }
3498
3499 static int radio_g_tuner(struct file *file, void *priv, struct v4l2_tuner *t)
3500 {
3501 struct bttv_fh *fh = priv;
3502 struct bttv *btv = fh->btv;
3503
3504 if (UNSET == bttv_tvcards[btv->c.type].tuner)
3505 return -EINVAL;
3506 if (0 != t->index)
3507 return -EINVAL;
3508 mutex_lock(&btv->lock);
3509 memset(t, 0, sizeof(*t));
3510 strcpy(t->name, "Radio");
3511 t->type = V4L2_TUNER_RADIO;
3512
3513 bttv_call_i2c_clients(btv, VIDIOC_G_TUNER, t);
3514
3515 if (btv->audio_mode_gpio)
3516 btv->audio_mode_gpio(btv, t, 0);
3517
3518 mutex_unlock(&btv->lock);
3519
3520 return 0;
3521 }
3522
3523 static int radio_enum_input(struct file *file, void *priv,
3524 struct v4l2_input *i)
3525 {
3526 if (i->index != 0)
3527 return -EINVAL;
3528
3529 strcpy(i->name, "Radio");
3530 i->type = V4L2_INPUT_TYPE_TUNER;
3531
3532 return 0;
3533 }
3534
3535 static int radio_g_audio(struct file *file, void *priv,
3536 struct v4l2_audio *a)
3537 {
3538 if (unlikely(a->index))
3539 return -EINVAL;
3540
3541 strcpy(a->name, "Radio");
3542
3543 return 0;
3544 }
3545
3546 static int radio_s_tuner(struct file *file, void *priv,
3547 struct v4l2_tuner *t)
3548 {
3549 struct bttv_fh *fh = priv;
3550 struct bttv *btv = fh->btv;
3551
3552 if (0 != t->index)
3553 return -EINVAL;
3554
3555 bttv_call_i2c_clients(btv, VIDIOC_G_TUNER, t);
3556 return 0;
3557 }
3558
3559 static int radio_s_audio(struct file *file, void *priv,
3560 struct v4l2_audio *a)
3561 {
3562 if (unlikely(a->index))
3563 return -EINVAL;
3564
3565 return 0;
3566 }
3567
3568 static int radio_s_input(struct file *filp, void *priv, unsigned int i)
3569 {
3570 if (unlikely(i))
3571 return -EINVAL;
3572
3573 return 0;
3574 }
3575
3576 static int radio_s_std(struct file *file, void *fh, v4l2_std_id *norm)
3577 {
3578 return 0;
3579 }
3580
3581 static int radio_queryctrl(struct file *file, void *priv,
3582 struct v4l2_queryctrl *c)
3583 {
3584 const struct v4l2_queryctrl *ctrl;
3585
3586 if (c->id < V4L2_CID_BASE ||
3587 c->id >= V4L2_CID_LASTP1)
3588 return -EINVAL;
3589
3590 if (c->id == V4L2_CID_AUDIO_MUTE) {
3591 ctrl = ctrl_by_id(c->id);
3592 *c = *ctrl;
3593 } else
3594 *c = no_ctl;
3595
3596 return 0;
3597 }
3598
3599 static int radio_g_input(struct file *filp, void *priv, unsigned int *i)
3600 {
3601 *i = 0;
3602 return 0;
3603 }
3604
3605 static ssize_t radio_read(struct file *file, char __user *data,
3606 size_t count, loff_t *ppos)
3607 {
3608 struct bttv_fh *fh = file->private_data;
3609 struct bttv *btv = fh->btv;
3610 struct rds_command cmd;
3611 cmd.block_count = count/3;
3612 cmd.buffer = data;
3613 cmd.instance = file;
3614 cmd.result = -ENODEV;
3615
3616 bttv_call_i2c_clients(btv, RDS_CMD_READ, &cmd);
3617
3618 return cmd.result;
3619 }
3620
3621 static unsigned int radio_poll(struct file *file, poll_table *wait)
3622 {
3623 struct bttv_fh *fh = file->private_data;
3624 struct bttv *btv = fh->btv;
3625 struct rds_command cmd;
3626 cmd.instance = file;
3627 cmd.event_list = wait;
3628 cmd.result = -ENODEV;
3629 bttv_call_i2c_clients(btv, RDS_CMD_POLL, &cmd);
3630
3631 return cmd.result;
3632 }
3633
3634 static const struct v4l2_file_operations radio_fops =
3635 {
3636 .owner = THIS_MODULE,
3637 .open = radio_open,
3638 .read = radio_read,
3639 .release = radio_release,
3640 .ioctl = video_ioctl2,
3641 .poll = radio_poll,
3642 };
3643
3644 static const struct v4l2_ioctl_ops radio_ioctl_ops = {
3645 .vidioc_querycap = radio_querycap,
3646 .vidioc_g_tuner = radio_g_tuner,
3647 .vidioc_enum_input = radio_enum_input,
3648 .vidioc_g_audio = radio_g_audio,
3649 .vidioc_s_tuner = radio_s_tuner,
3650 .vidioc_s_audio = radio_s_audio,
3651 .vidioc_s_input = radio_s_input,
3652 .vidioc_s_std = radio_s_std,
3653 .vidioc_queryctrl = radio_queryctrl,
3654 .vidioc_g_input = radio_g_input,
3655 .vidioc_g_ctrl = bttv_g_ctrl,
3656 .vidioc_s_ctrl = bttv_s_ctrl,
3657 .vidioc_g_frequency = bttv_g_frequency,
3658 .vidioc_s_frequency = bttv_s_frequency,
3659 };
3660
3661 static struct video_device radio_template = {
3662 .fops = &radio_fops,
3663 .minor = -1,
3664 .ioctl_ops = &radio_ioctl_ops,
3665 };
3666
3667 /* ----------------------------------------------------------------------- */
3668 /* some debug code */
3669
3670 static int bttv_risc_decode(u32 risc)
3671 {
3672 static char *instr[16] = {
3673 [ BT848_RISC_WRITE >> 28 ] = "write",
3674 [ BT848_RISC_SKIP >> 28 ] = "skip",
3675 [ BT848_RISC_WRITEC >> 28 ] = "writec",
3676 [ BT848_RISC_JUMP >> 28 ] = "jump",
3677 [ BT848_RISC_SYNC >> 28 ] = "sync",
3678 [ BT848_RISC_WRITE123 >> 28 ] = "write123",
3679 [ BT848_RISC_SKIP123 >> 28 ] = "skip123",
3680 [ BT848_RISC_WRITE1S23 >> 28 ] = "write1s23",
3681 };
3682 static int incr[16] = {
3683 [ BT848_RISC_WRITE >> 28 ] = 2,
3684 [ BT848_RISC_JUMP >> 28 ] = 2,
3685 [ BT848_RISC_SYNC >> 28 ] = 2,
3686 [ BT848_RISC_WRITE123 >> 28 ] = 5,
3687 [ BT848_RISC_SKIP123 >> 28 ] = 2,
3688 [ BT848_RISC_WRITE1S23 >> 28 ] = 3,
3689 };
3690 static char *bits[] = {
3691 "be0", "be1", "be2", "be3/resync",
3692 "set0", "set1", "set2", "set3",
3693 "clr0", "clr1", "clr2", "clr3",
3694 "irq", "res", "eol", "sol",
3695 };
3696 int i;
3697
3698 printk("0x%08x [ %s", risc,
3699 instr[risc >> 28] ? instr[risc >> 28] : "INVALID");
3700 for (i = ARRAY_SIZE(bits)-1; i >= 0; i--)
3701 if (risc & (1 << (i + 12)))
3702 printk(" %s",bits[i]);
3703 printk(" count=%d ]\n", risc & 0xfff);
3704 return incr[risc >> 28] ? incr[risc >> 28] : 1;
3705 }
3706
3707 static void bttv_risc_disasm(struct bttv *btv,
3708 struct btcx_riscmem *risc)
3709 {
3710 unsigned int i,j,n;
3711
3712 printk("%s: risc disasm: %p [dma=0x%08lx]\n",
3713 btv->c.name, risc->cpu, (unsigned long)risc->dma);
3714 for (i = 0; i < (risc->size >> 2); i += n) {
3715 printk("%s: 0x%lx: ", btv->c.name,
3716 (unsigned long)(risc->dma + (i<<2)));
3717 n = bttv_risc_decode(le32_to_cpu(risc->cpu[i]));
3718 for (j = 1; j < n; j++)
3719 printk("%s: 0x%lx: 0x%08x [ arg #%d ]\n",
3720 btv->c.name, (unsigned long)(risc->dma + ((i+j)<<2)),
3721 risc->cpu[i+j], j);
3722 if (0 == risc->cpu[i])
3723 break;
3724 }
3725 }
3726
3727 static void bttv_print_riscaddr(struct bttv *btv)
3728 {
3729 printk(" main: %08Lx\n",
3730 (unsigned long long)btv->main.dma);
3731 printk(" vbi : o=%08Lx e=%08Lx\n",
3732 btv->cvbi ? (unsigned long long)btv->cvbi->top.dma : 0,
3733 btv->cvbi ? (unsigned long long)btv->cvbi->bottom.dma : 0);
3734 printk(" cap : o=%08Lx e=%08Lx\n",
3735 btv->curr.top ? (unsigned long long)btv->curr.top->top.dma : 0,
3736 btv->curr.bottom ? (unsigned long long)btv->curr.bottom->bottom.dma : 0);
3737 printk(" scr : o=%08Lx e=%08Lx\n",
3738 btv->screen ? (unsigned long long)btv->screen->top.dma : 0,
3739 btv->screen ? (unsigned long long)btv->screen->bottom.dma : 0);
3740 bttv_risc_disasm(btv, &btv->main);
3741 }
3742
3743 /* ----------------------------------------------------------------------- */
3744 /* irq handler */
3745
3746 static char *irq_name[] = {
3747 "FMTCHG", // format change detected (525 vs. 625)
3748 "VSYNC", // vertical sync (new field)
3749 "HSYNC", // horizontal sync
3750 "OFLOW", // chroma/luma AGC overflow
3751 "HLOCK", // horizontal lock changed
3752 "VPRES", // video presence changed
3753 "6", "7",
3754 "I2CDONE", // hw irc operation finished
3755 "GPINT", // gpio port triggered irq
3756 "10",
3757 "RISCI", // risc instruction triggered irq
3758 "FBUS", // pixel data fifo dropped data (high pci bus latencies)
3759 "FTRGT", // pixel data fifo overrun
3760 "FDSR", // fifo data stream resyncronisation
3761 "PPERR", // parity error (data transfer)
3762 "RIPERR", // parity error (read risc instructions)
3763 "PABORT", // pci abort
3764 "OCERR", // risc instruction error
3765 "SCERR", // syncronisation error
3766 };
3767
3768 static void bttv_print_irqbits(u32 print, u32 mark)
3769 {
3770 unsigned int i;
3771
3772 printk("bits:");
3773 for (i = 0; i < ARRAY_SIZE(irq_name); i++) {
3774 if (print & (1 << i))
3775 printk(" %s",irq_name[i]);
3776 if (mark & (1 << i))
3777 printk("*");
3778 }
3779 }
3780
3781 static void bttv_irq_debug_low_latency(struct bttv *btv, u32 rc)
3782 {
3783 printk("bttv%d: irq: skipped frame [main=%lx,o_vbi=%lx,o_field=%lx,rc=%lx]\n",
3784 btv->c.nr,
3785 (unsigned long)btv->main.dma,
3786 (unsigned long)le32_to_cpu(btv->main.cpu[RISC_SLOT_O_VBI+1]),
3787 (unsigned long)le32_to_cpu(btv->main.cpu[RISC_SLOT_O_FIELD+1]),
3788 (unsigned long)rc);
3789
3790 if (0 == (btread(BT848_DSTATUS) & BT848_DSTATUS_HLOC)) {
3791 printk("bttv%d: Oh, there (temporarely?) is no input signal. "
3792 "Ok, then this is harmless, don't worry ;)\n",
3793 btv->c.nr);
3794 return;
3795 }
3796 printk("bttv%d: Uhm. Looks like we have unusual high IRQ latencies.\n",
3797 btv->c.nr);
3798 printk("bttv%d: Lets try to catch the culpit red-handed ...\n",
3799 btv->c.nr);
3800 dump_stack();
3801 }
3802
3803 static int
3804 bttv_irq_next_video(struct bttv *btv, struct bttv_buffer_set *set)
3805 {
3806 struct bttv_buffer *item;
3807
3808 memset(set,0,sizeof(*set));
3809
3810 /* capture request ? */
3811 if (!list_empty(&btv->capture)) {
3812 set->frame_irq = 1;
3813 item = list_entry(btv->capture.next, struct bttv_buffer, vb.queue);
3814 if (V4L2_FIELD_HAS_TOP(item->vb.field))
3815 set->top = item;
3816 if (V4L2_FIELD_HAS_BOTTOM(item->vb.field))
3817 set->bottom = item;
3818
3819 /* capture request for other field ? */
3820 if (!V4L2_FIELD_HAS_BOTH(item->vb.field) &&
3821 (item->vb.queue.next != &btv->capture)) {
3822 item = list_entry(item->vb.queue.next, struct bttv_buffer, vb.queue);
3823 if (!V4L2_FIELD_HAS_BOTH(item->vb.field)) {
3824 if (NULL == set->top &&
3825 V4L2_FIELD_TOP == item->vb.field) {
3826 set->top = item;
3827 }
3828 if (NULL == set->bottom &&
3829 V4L2_FIELD_BOTTOM == item->vb.field) {
3830 set->bottom = item;
3831 }
3832 if (NULL != set->top && NULL != set->bottom)
3833 set->top_irq = 2;
3834 }
3835 }
3836 }
3837
3838 /* screen overlay ? */
3839 if (NULL != btv->screen) {
3840 if (V4L2_FIELD_HAS_BOTH(btv->screen->vb.field)) {
3841 if (NULL == set->top && NULL == set->bottom) {
3842 set->top = btv->screen;
3843 set->bottom = btv->screen;
3844 }
3845 } else {
3846 if (V4L2_FIELD_TOP == btv->screen->vb.field &&
3847 NULL == set->top) {
3848 set->top = btv->screen;
3849 }
3850 if (V4L2_FIELD_BOTTOM == btv->screen->vb.field &&
3851 NULL == set->bottom) {
3852 set->bottom = btv->screen;
3853 }
3854 }
3855 }
3856
3857 dprintk("bttv%d: next set: top=%p bottom=%p [screen=%p,irq=%d,%d]\n",
3858 btv->c.nr,set->top, set->bottom,
3859 btv->screen,set->frame_irq,set->top_irq);
3860 return 0;
3861 }
3862
3863 static void
3864 bttv_irq_wakeup_video(struct bttv *btv, struct bttv_buffer_set *wakeup,
3865 struct bttv_buffer_set *curr, unsigned int state)
3866 {
3867 struct timeval ts;
3868
3869 do_gettimeofday(&ts);
3870
3871 if (wakeup->top == wakeup->bottom) {
3872 if (NULL != wakeup->top && curr->top != wakeup->top) {
3873 if (irq_debug > 1)
3874 printk("bttv%d: wakeup: both=%p\n",btv->c.nr,wakeup->top);
3875 wakeup->top->vb.ts = ts;
3876 wakeup->top->vb.field_count = btv->field_count;
3877 wakeup->top->vb.state = state;
3878 wake_up(&wakeup->top->vb.done);
3879 }
3880 } else {
3881 if (NULL != wakeup->top && curr->top != wakeup->top) {
3882 if (irq_debug > 1)
3883 printk("bttv%d: wakeup: top=%p\n",btv->c.nr,wakeup->top);
3884 wakeup->top->vb.ts = ts;
3885 wakeup->top->vb.field_count = btv->field_count;
3886 wakeup->top->vb.state = state;
3887 wake_up(&wakeup->top->vb.done);
3888 }
3889 if (NULL != wakeup->bottom && curr->bottom != wakeup->bottom) {
3890 if (irq_debug > 1)
3891 printk("bttv%d: wakeup: bottom=%p\n",btv->c.nr,wakeup->bottom);
3892 wakeup->bottom->vb.ts = ts;
3893 wakeup->bottom->vb.field_count = btv->field_count;
3894 wakeup->bottom->vb.state = state;
3895 wake_up(&wakeup->bottom->vb.done);
3896 }
3897 }
3898 }
3899
3900 static void
3901 bttv_irq_wakeup_vbi(struct bttv *btv, struct bttv_buffer *wakeup,
3902 unsigned int state)
3903 {
3904 struct timeval ts;
3905
3906 if (NULL == wakeup)
3907 return;
3908
3909 do_gettimeofday(&ts);
3910 wakeup->vb.ts = ts;
3911 wakeup->vb.field_count = btv->field_count;
3912 wakeup->vb.state = state;
3913 wake_up(&wakeup->vb.done);
3914 }
3915
3916 static void bttv_irq_timeout(unsigned long data)
3917 {
3918 struct bttv *btv = (struct bttv *)data;
3919 struct bttv_buffer_set old,new;
3920 struct bttv_buffer *ovbi;
3921 struct bttv_buffer *item;
3922 unsigned long flags;
3923
3924 if (bttv_verbose) {
3925 printk(KERN_INFO "bttv%d: timeout: drop=%d irq=%d/%d, risc=%08x, ",
3926 btv->c.nr, btv->framedrop, btv->irq_me, btv->irq_total,
3927 btread(BT848_RISC_COUNT));
3928 bttv_print_irqbits(btread(BT848_INT_STAT),0);
3929 printk("\n");
3930 }
3931
3932 spin_lock_irqsave(&btv->s_lock,flags);
3933
3934 /* deactivate stuff */
3935 memset(&new,0,sizeof(new));
3936 old = btv->curr;
3937 ovbi = btv->cvbi;
3938 btv->curr = new;
3939 btv->cvbi = NULL;
3940 btv->loop_irq = 0;
3941 bttv_buffer_activate_video(btv, &new);
3942 bttv_buffer_activate_vbi(btv, NULL);
3943 bttv_set_dma(btv, 0);
3944
3945 /* wake up */
3946 bttv_irq_wakeup_video(btv, &old, &new, VIDEOBUF_ERROR);
3947 bttv_irq_wakeup_vbi(btv, ovbi, VIDEOBUF_ERROR);
3948
3949 /* cancel all outstanding capture / vbi requests */
3950 while (!list_empty(&btv->capture)) {
3951 item = list_entry(btv->capture.next, struct bttv_buffer, vb.queue);
3952 list_del(&item->vb.queue);
3953 item->vb.state = VIDEOBUF_ERROR;
3954 wake_up(&item->vb.done);
3955 }
3956 while (!list_empty(&btv->vcapture)) {
3957 item = list_entry(btv->vcapture.next, struct bttv_buffer, vb.queue);
3958 list_del(&item->vb.queue);
3959 item->vb.state = VIDEOBUF_ERROR;
3960 wake_up(&item->vb.done);
3961 }
3962
3963 btv->errors++;
3964 spin_unlock_irqrestore(&btv->s_lock,flags);
3965 }
3966
3967 static void
3968 bttv_irq_wakeup_top(struct bttv *btv)
3969 {
3970 struct bttv_buffer *wakeup = btv->curr.top;
3971
3972 if (NULL == wakeup)
3973 return;
3974
3975 spin_lock(&btv->s_lock);
3976 btv->curr.top_irq = 0;
3977 btv->curr.top = NULL;
3978 bttv_risc_hook(btv, RISC_SLOT_O_FIELD, NULL, 0);
3979
3980 do_gettimeofday(&wakeup->vb.ts);
3981 wakeup->vb.field_count = btv->field_count;
3982 wakeup->vb.state = VIDEOBUF_DONE;
3983 wake_up(&wakeup->vb.done);
3984 spin_unlock(&btv->s_lock);
3985 }
3986
3987 static inline int is_active(struct btcx_riscmem *risc, u32 rc)
3988 {
3989 if (rc < risc->dma)
3990 return 0;
3991 if (rc > risc->dma + risc->size)
3992 return 0;
3993 return 1;
3994 }
3995
3996 static void
3997 bttv_irq_switch_video(struct bttv *btv)
3998 {
3999 struct bttv_buffer_set new;
4000 struct bttv_buffer_set old;
4001 dma_addr_t rc;
4002
4003 spin_lock(&btv->s_lock);
4004
4005 /* new buffer set */
4006 bttv_irq_next_video(btv, &new);
4007 rc = btread(BT848_RISC_COUNT);
4008 if ((btv->curr.top && is_active(&btv->curr.top->top, rc)) ||
4009 (btv->curr.bottom && is_active(&btv->curr.bottom->bottom, rc))) {
4010 btv->framedrop++;
4011 if (debug_latency)
4012 bttv_irq_debug_low_latency(btv, rc);
4013 spin_unlock(&btv->s_lock);
4014 return;
4015 }
4016
4017 /* switch over */
4018 old = btv->curr;
4019 btv->curr = new;
4020 btv->loop_irq &= ~1;
4021 bttv_buffer_activate_video(btv, &new);
4022 bttv_set_dma(btv, 0);
4023
4024 /* switch input */
4025 if (UNSET != btv->new_input) {
4026 video_mux(btv,btv->new_input);
4027 btv->new_input = UNSET;
4028 }
4029
4030 /* wake up finished buffers */
4031 bttv_irq_wakeup_video(btv, &old, &new, VIDEOBUF_DONE);
4032 spin_unlock(&btv->s_lock);
4033 }
4034
4035 static void
4036 bttv_irq_switch_vbi(struct bttv *btv)
4037 {
4038 struct bttv_buffer *new = NULL;
4039 struct bttv_buffer *old;
4040 u32 rc;
4041
4042 spin_lock(&btv->s_lock);
4043
4044 if (!list_empty(&btv->vcapture))
4045 new = list_entry(btv->vcapture.next, struct bttv_buffer, vb.queue);
4046 old = btv->cvbi;
4047
4048 rc = btread(BT848_RISC_COUNT);
4049 if (NULL != old && (is_active(&old->top, rc) ||
4050 is_active(&old->bottom, rc))) {
4051 btv->framedrop++;
4052 if (debug_latency)
4053 bttv_irq_debug_low_latency(btv, rc);
4054 spin_unlock(&btv->s_lock);
4055 return;
4056 }
4057
4058 /* switch */
4059 btv->cvbi = new;
4060 btv->loop_irq &= ~4;
4061 bttv_buffer_activate_vbi(btv, new);
4062 bttv_set_dma(btv, 0);
4063
4064 bttv_irq_wakeup_vbi(btv, old, VIDEOBUF_DONE);
4065 spin_unlock(&btv->s_lock);
4066 }
4067
4068 static irqreturn_t bttv_irq(int irq, void *dev_id)
4069 {
4070 u32 stat,astat;
4071 u32 dstat;
4072 int count;
4073 struct bttv *btv;
4074 int handled = 0;
4075
4076 btv=(struct bttv *)dev_id;
4077
4078 if (btv->custom_irq)
4079 handled = btv->custom_irq(btv);
4080
4081 count=0;
4082 while (1) {
4083 /* get/clear interrupt status bits */
4084 stat=btread(BT848_INT_STAT);
4085 astat=stat&btread(BT848_INT_MASK);
4086 if (!astat)
4087 break;
4088 handled = 1;
4089 btwrite(stat,BT848_INT_STAT);
4090
4091 /* get device status bits */
4092 dstat=btread(BT848_DSTATUS);
4093
4094 if (irq_debug) {
4095 printk(KERN_DEBUG "bttv%d: irq loop=%d fc=%d "
4096 "riscs=%x, riscc=%08x, ",
4097 btv->c.nr, count, btv->field_count,
4098 stat>>28, btread(BT848_RISC_COUNT));
4099 bttv_print_irqbits(stat,astat);
4100 if (stat & BT848_INT_HLOCK)
4101 printk(" HLOC => %s", (dstat & BT848_DSTATUS_HLOC)
4102 ? "yes" : "no");
4103 if (stat & BT848_INT_VPRES)
4104 printk(" PRES => %s", (dstat & BT848_DSTATUS_PRES)
4105 ? "yes" : "no");
4106 if (stat & BT848_INT_FMTCHG)
4107 printk(" NUML => %s", (dstat & BT848_DSTATUS_NUML)
4108 ? "625" : "525");
4109 printk("\n");
4110 }
4111
4112 if (astat&BT848_INT_VSYNC)
4113 btv->field_count++;
4114
4115 if ((astat & BT848_INT_GPINT) && btv->remote) {
4116 wake_up(&btv->gpioq);
4117 bttv_input_irq(btv);
4118 }
4119
4120 if (astat & BT848_INT_I2CDONE) {
4121 btv->i2c_done = stat;
4122 wake_up(&btv->i2c_queue);
4123 }
4124
4125 if ((astat & BT848_INT_RISCI) && (stat & (4<<28)))
4126 bttv_irq_switch_vbi(btv);
4127
4128 if ((astat & BT848_INT_RISCI) && (stat & (2<<28)))
4129 bttv_irq_wakeup_top(btv);
4130
4131 if ((astat & BT848_INT_RISCI) && (stat & (1<<28)))
4132 bttv_irq_switch_video(btv);
4133
4134 if ((astat & BT848_INT_HLOCK) && btv->opt_automute)
4135 audio_mute(btv, btv->mute); /* trigger automute */
4136
4137 if (astat & (BT848_INT_SCERR|BT848_INT_OCERR)) {
4138 printk(KERN_INFO "bttv%d: %s%s @ %08x,",btv->c.nr,
4139 (astat & BT848_INT_SCERR) ? "SCERR" : "",
4140 (astat & BT848_INT_OCERR) ? "OCERR" : "",
4141 btread(BT848_RISC_COUNT));
4142 bttv_print_irqbits(stat,astat);
4143 printk("\n");
4144 if (bttv_debug)
4145 bttv_print_riscaddr(btv);
4146 }
4147 if (fdsr && astat & BT848_INT_FDSR) {
4148 printk(KERN_INFO "bttv%d: FDSR @ %08x\n",
4149 btv->c.nr,btread(BT848_RISC_COUNT));
4150 if (bttv_debug)
4151 bttv_print_riscaddr(btv);
4152 }
4153
4154 count++;
4155 if (count > 4) {
4156
4157 if (count > 8 || !(astat & BT848_INT_GPINT)) {
4158 btwrite(0, BT848_INT_MASK);
4159
4160 printk(KERN_ERR
4161 "bttv%d: IRQ lockup, cleared int mask [", btv->c.nr);
4162 } else {
4163 printk(KERN_ERR
4164 "bttv%d: IRQ lockup, clearing GPINT from int mask [", btv->c.nr);
4165
4166 btwrite(btread(BT848_INT_MASK) & (-1 ^ BT848_INT_GPINT),
4167 BT848_INT_MASK);
4168 };
4169
4170 bttv_print_irqbits(stat,astat);
4171
4172 printk("]\n");
4173 }
4174 }
4175 btv->irq_total++;
4176 if (handled)
4177 btv->irq_me++;
4178 return IRQ_RETVAL(handled);
4179 }
4180
4181
4182 /* ----------------------------------------------------------------------- */
4183 /* initialitation */
4184
4185 static struct video_device *vdev_init(struct bttv *btv,
4186 const struct video_device *template,
4187 const char *type_name)
4188 {
4189 struct video_device *vfd;
4190
4191 vfd = video_device_alloc();
4192 if (NULL == vfd)
4193 return NULL;
4194 *vfd = *template;
4195 vfd->minor = -1;
4196 vfd->parent = &btv->c.pci->dev;
4197 vfd->release = video_device_release;
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 if (no_overlay > 0)
4234 printk("bttv: Overlay support disabled.\n");
4235
4236 /* video */
4237 btv->video_dev = vdev_init(btv, &bttv_video_template, "video");
4238
4239 if (NULL == btv->video_dev)
4240 goto err;
4241 if (video_register_device(btv->video_dev, VFL_TYPE_GRABBER,
4242 video_nr[btv->c.nr]) < 0)
4243 goto err;
4244 printk(KERN_INFO "bttv%d: registered device video%d\n",
4245 btv->c.nr, btv->video_dev->num);
4246 if (device_create_file(&btv->video_dev->dev,
4247 &dev_attr_card)<0) {
4248 printk(KERN_ERR "bttv%d: device_create_file 'card' "
4249 "failed\n", btv->c.nr);
4250 goto err;
4251 }
4252
4253 /* vbi */
4254 btv->vbi_dev = vdev_init(btv, &bttv_video_template, "vbi");
4255
4256 if (NULL == btv->vbi_dev)
4257 goto err;
4258 if (video_register_device(btv->vbi_dev, VFL_TYPE_VBI,
4259 vbi_nr[btv->c.nr]) < 0)
4260 goto err;
4261 printk(KERN_INFO "bttv%d: registered device vbi%d\n",
4262 btv->c.nr, btv->vbi_dev->num);
4263
4264 if (!btv->has_radio)
4265 return 0;
4266 /* radio */
4267 btv->radio_dev = vdev_init(btv, &radio_template, "radio");
4268 if (NULL == btv->radio_dev)
4269 goto err;
4270 if (video_register_device(btv->radio_dev, VFL_TYPE_RADIO,
4271 radio_nr[btv->c.nr]) < 0)
4272 goto err;
4273 printk(KERN_INFO "bttv%d: registered device radio%d\n",
4274 btv->c.nr, btv->radio_dev->num);
4275
4276 /* all done */
4277 return 0;
4278
4279 err:
4280 bttv_unregister_video(btv);
4281 return -1;
4282 }
4283
4284
4285 /* on OpenFirmware machines (PowerMac at least), PCI memory cycle */
4286 /* response on cards with no firmware is not enabled by OF */
4287 static void pci_set_command(struct pci_dev *dev)
4288 {
4289 #if defined(__powerpc__)
4290 unsigned int cmd;
4291
4292 pci_read_config_dword(dev, PCI_COMMAND, &cmd);
4293 cmd = (cmd | PCI_COMMAND_MEMORY );
4294 pci_write_config_dword(dev, PCI_COMMAND, cmd);
4295 #endif
4296 }
4297
4298 static int __devinit bttv_probe(struct pci_dev *dev,
4299 const struct pci_device_id *pci_id)
4300 {
4301 int result;
4302 unsigned char lat;
4303 struct bttv *btv;
4304
4305 if (bttv_num == BTTV_MAX)
4306 return -ENOMEM;
4307 printk(KERN_INFO "bttv: Bt8xx card found (%d).\n", bttv_num);
4308 btv=&bttvs[bttv_num];
4309 memset(btv,0,sizeof(*btv));
4310 btv->c.nr = bttv_num;
4311 sprintf(btv->c.name,"bttv%d",btv->c.nr);
4312
4313 /* initialize structs / fill in defaults */
4314 mutex_init(&btv->lock);
4315 spin_lock_init(&btv->s_lock);
4316 spin_lock_init(&btv->gpio_lock);
4317 init_waitqueue_head(&btv->gpioq);
4318 init_waitqueue_head(&btv->i2c_queue);
4319 INIT_LIST_HEAD(&btv->c.subs);
4320 INIT_LIST_HEAD(&btv->capture);
4321 INIT_LIST_HEAD(&btv->vcapture);
4322 v4l2_prio_init(&btv->prio);
4323
4324 init_timer(&btv->timeout);
4325 btv->timeout.function = bttv_irq_timeout;
4326 btv->timeout.data = (unsigned long)btv;
4327
4328 btv->i2c_rc = -1;
4329 btv->tuner_type = UNSET;
4330 btv->new_input = UNSET;
4331 btv->has_radio=radio[btv->c.nr];
4332
4333 /* pci stuff (init, get irq/mmio, ... */
4334 btv->c.pci = dev;
4335 btv->id = dev->device;
4336 if (pci_enable_device(dev)) {
4337 printk(KERN_WARNING "bttv%d: Can't enable device.\n",
4338 btv->c.nr);
4339 return -EIO;
4340 }
4341 if (pci_set_dma_mask(dev, DMA_32BIT_MASK)) {
4342 printk(KERN_WARNING "bttv%d: No suitable DMA available.\n",
4343 btv->c.nr);
4344 return -EIO;
4345 }
4346 if (!request_mem_region(pci_resource_start(dev,0),
4347 pci_resource_len(dev,0),
4348 btv->c.name)) {
4349 printk(KERN_WARNING "bttv%d: can't request iomem (0x%llx).\n",
4350 btv->c.nr,
4351 (unsigned long long)pci_resource_start(dev,0));
4352 return -EBUSY;
4353 }
4354 pci_set_master(dev);
4355 pci_set_command(dev);
4356 pci_set_drvdata(dev,btv);
4357
4358 pci_read_config_byte(dev, PCI_CLASS_REVISION, &btv->revision);
4359 pci_read_config_byte(dev, PCI_LATENCY_TIMER, &lat);
4360 printk(KERN_INFO "bttv%d: Bt%d (rev %d) at %s, ",
4361 bttv_num,btv->id, btv->revision, pci_name(dev));
4362 printk("irq: %d, latency: %d, mmio: 0x%llx\n",
4363 btv->c.pci->irq, lat,
4364 (unsigned long long)pci_resource_start(dev,0));
4365 schedule();
4366
4367 btv->bt848_mmio = ioremap(pci_resource_start(dev, 0), 0x1000);
4368 if (NULL == btv->bt848_mmio) {
4369 printk("bttv%d: ioremap() failed\n", btv->c.nr);
4370 result = -EIO;
4371 goto fail1;
4372 }
4373
4374 /* identify card */
4375 bttv_idcard(btv);
4376
4377 /* disable irqs, register irq handler */
4378 btwrite(0, BT848_INT_MASK);
4379 result = request_irq(btv->c.pci->irq, bttv_irq,
4380 IRQF_SHARED | IRQF_DISABLED,btv->c.name,(void *)btv);
4381 if (result < 0) {
4382 printk(KERN_ERR "bttv%d: can't get IRQ %d\n",
4383 bttv_num,btv->c.pci->irq);
4384 goto fail1;
4385 }
4386
4387 if (0 != bttv_handle_chipset(btv)) {
4388 result = -EIO;
4389 goto fail2;
4390 }
4391
4392 /* init options from insmod args */
4393 btv->opt_combfilter = combfilter;
4394 btv->opt_lumafilter = lumafilter;
4395 btv->opt_automute = automute;
4396 btv->opt_chroma_agc = chroma_agc;
4397 btv->opt_adc_crush = adc_crush;
4398 btv->opt_vcr_hack = vcr_hack;
4399 btv->opt_whitecrush_upper = whitecrush_upper;
4400 btv->opt_whitecrush_lower = whitecrush_lower;
4401 btv->opt_uv_ratio = uv_ratio;
4402 btv->opt_full_luma_range = full_luma_range;
4403 btv->opt_coring = coring;
4404
4405 /* fill struct bttv with some useful defaults */
4406 btv->init.btv = btv;
4407 btv->init.ov.w.width = 320;
4408 btv->init.ov.w.height = 240;
4409 btv->init.fmt = format_by_fourcc(V4L2_PIX_FMT_BGR24);
4410 btv->init.width = 320;
4411 btv->init.height = 240;
4412 btv->input = 0;
4413
4414 /* initialize hardware */
4415 if (bttv_gpio)
4416 bttv_gpio_tracking(btv,"pre-init");
4417
4418 bttv_risc_init_main(btv);
4419 init_bt848(btv);
4420
4421 /* gpio */
4422 btwrite(0x00, BT848_GPIO_REG_INP);
4423 btwrite(0x00, BT848_GPIO_OUT_EN);
4424 if (bttv_verbose)
4425 bttv_gpio_tracking(btv,"init");
4426
4427 /* needs to be done before i2c is registered */
4428 bttv_init_card1(btv);
4429
4430 /* register i2c + gpio */
4431 init_bttv_i2c(btv);
4432
4433 /* some card-specific stuff (needs working i2c) */
4434 bttv_init_card2(btv);
4435 init_irqreg(btv);
4436
4437 /* register video4linux + input */
4438 if (!bttv_tvcards[btv->c.type].no_video) {
4439 bttv_register_video(btv);
4440 bt848_bright(btv,32768);
4441 bt848_contrast(btv,32768);
4442 bt848_hue(btv,32768);
4443 bt848_sat(btv,32768);
4444 audio_mute(btv, 1);
4445 set_input(btv, 0, btv->tvnorm);
4446 bttv_crop_reset(&btv->crop[0], btv->tvnorm);
4447 btv->crop[1] = btv->crop[0]; /* current = default */
4448 disclaim_vbi_lines(btv);
4449 disclaim_video_lines(btv);
4450 }
4451
4452 /* add subdevices and autoload dvb-bt8xx if needed */
4453 if (bttv_tvcards[btv->c.type].has_dvb) {
4454 bttv_sub_add_device(&btv->c, "dvb");
4455 request_modules(btv);
4456 }
4457
4458 bttv_input_init(btv);
4459
4460 /* everything is fine */
4461 bttv_num++;
4462 return 0;
4463
4464 fail2:
4465 free_irq(btv->c.pci->irq,btv);
4466
4467 fail1:
4468 if (btv->bt848_mmio)
4469 iounmap(btv->bt848_mmio);
4470 release_mem_region(pci_resource_start(btv->c.pci,0),
4471 pci_resource_len(btv->c.pci,0));
4472 pci_set_drvdata(dev,NULL);
4473 return result;
4474 }
4475
4476 static void __devexit bttv_remove(struct pci_dev *pci_dev)
4477 {
4478 struct bttv *btv = pci_get_drvdata(pci_dev);
4479
4480 if (bttv_verbose)
4481 printk("bttv%d: unloading\n",btv->c.nr);
4482
4483 /* shutdown everything (DMA+IRQs) */
4484 btand(~15, BT848_GPIO_DMA_CTL);
4485 btwrite(0, BT848_INT_MASK);
4486 btwrite(~0x0, BT848_INT_STAT);
4487 btwrite(0x0, BT848_GPIO_OUT_EN);
4488 if (bttv_gpio)
4489 bttv_gpio_tracking(btv,"cleanup");
4490
4491 /* tell gpio modules we are leaving ... */
4492 btv->shutdown=1;
4493 wake_up(&btv->gpioq);
4494 bttv_input_fini(btv);
4495 bttv_sub_del_devices(&btv->c);
4496
4497 /* unregister i2c_bus + input */
4498 fini_bttv_i2c(btv);
4499
4500 /* unregister video4linux */
4501 bttv_unregister_video(btv);
4502
4503 /* free allocated memory */
4504 btcx_riscmem_free(btv->c.pci,&btv->main);
4505
4506 /* free ressources */
4507 free_irq(btv->c.pci->irq,btv);
4508 iounmap(btv->bt848_mmio);
4509 release_mem_region(pci_resource_start(btv->c.pci,0),
4510 pci_resource_len(btv->c.pci,0));
4511
4512 pci_set_drvdata(pci_dev, NULL);
4513 return;
4514 }
4515
4516 #ifdef CONFIG_PM
4517 static int bttv_suspend(struct pci_dev *pci_dev, pm_message_t state)
4518 {
4519 struct bttv *btv = pci_get_drvdata(pci_dev);
4520 struct bttv_buffer_set idle;
4521 unsigned long flags;
4522
4523 dprintk("bttv%d: suspend %d\n", btv->c.nr, state.event);
4524
4525 /* stop dma + irqs */
4526 spin_lock_irqsave(&btv->s_lock,flags);
4527 memset(&idle, 0, sizeof(idle));
4528 btv->state.video = btv->curr;
4529 btv->state.vbi = btv->cvbi;
4530 btv->state.loop_irq = btv->loop_irq;
4531 btv->curr = idle;
4532 btv->loop_irq = 0;
4533 bttv_buffer_activate_video(btv, &idle);
4534 bttv_buffer_activate_vbi(btv, NULL);
4535 bttv_set_dma(btv, 0);
4536 btwrite(0, BT848_INT_MASK);
4537 spin_unlock_irqrestore(&btv->s_lock,flags);
4538
4539 /* save bt878 state */
4540 btv->state.gpio_enable = btread(BT848_GPIO_OUT_EN);
4541 btv->state.gpio_data = gpio_read();
4542
4543 /* save pci state */
4544 pci_save_state(pci_dev);
4545 if (0 != pci_set_power_state(pci_dev, pci_choose_state(pci_dev, state))) {
4546 pci_disable_device(pci_dev);
4547 btv->state.disabled = 1;
4548 }
4549 return 0;
4550 }
4551
4552 static int bttv_resume(struct pci_dev *pci_dev)
4553 {
4554 struct bttv *btv = pci_get_drvdata(pci_dev);
4555 unsigned long flags;
4556 int err;
4557
4558 dprintk("bttv%d: resume\n", btv->c.nr);
4559
4560 /* restore pci state */
4561 if (btv->state.disabled) {
4562 err=pci_enable_device(pci_dev);
4563 if (err) {
4564 printk(KERN_WARNING "bttv%d: Can't enable device.\n",
4565 btv->c.nr);
4566 return err;
4567 }
4568 btv->state.disabled = 0;
4569 }
4570 err=pci_set_power_state(pci_dev, PCI_D0);
4571 if (err) {
4572 pci_disable_device(pci_dev);
4573 printk(KERN_WARNING "bttv%d: Can't enable device.\n",
4574 btv->c.nr);
4575 btv->state.disabled = 1;
4576 return err;
4577 }
4578
4579 pci_restore_state(pci_dev);
4580
4581 /* restore bt878 state */
4582 bttv_reinit_bt848(btv);
4583 gpio_inout(0xffffff, btv->state.gpio_enable);
4584 gpio_write(btv->state.gpio_data);
4585
4586 /* restart dma */
4587 spin_lock_irqsave(&btv->s_lock,flags);
4588 btv->curr = btv->state.video;
4589 btv->cvbi = btv->state.vbi;
4590 btv->loop_irq = btv->state.loop_irq;
4591 bttv_buffer_activate_video(btv, &btv->curr);
4592 bttv_buffer_activate_vbi(btv, btv->cvbi);
4593 bttv_set_dma(btv, 0);
4594 spin_unlock_irqrestore(&btv->s_lock,flags);
4595 return 0;
4596 }
4597 #endif
4598
4599 static struct pci_device_id bttv_pci_tbl[] = {
4600 {PCI_VENDOR_ID_BROOKTREE, PCI_DEVICE_ID_BT848,
4601 PCI_ANY_ID, PCI_ANY_ID, 0, 0, 0},
4602 {PCI_VENDOR_ID_BROOKTREE, PCI_DEVICE_ID_BT849,
4603 PCI_ANY_ID, PCI_ANY_ID, 0, 0, 0},
4604 {PCI_VENDOR_ID_BROOKTREE, PCI_DEVICE_ID_BT878,
4605 PCI_ANY_ID, PCI_ANY_ID, 0, 0, 0},
4606 {PCI_VENDOR_ID_BROOKTREE, PCI_DEVICE_ID_BT879,
4607 PCI_ANY_ID, PCI_ANY_ID, 0, 0, 0},
4608 {0,}
4609 };
4610
4611 MODULE_DEVICE_TABLE(pci, bttv_pci_tbl);
4612
4613 static struct pci_driver bttv_pci_driver = {
4614 .name = "bttv",
4615 .id_table = bttv_pci_tbl,
4616 .probe = bttv_probe,
4617 .remove = __devexit_p(bttv_remove),
4618 #ifdef CONFIG_PM
4619 .suspend = bttv_suspend,
4620 .resume = bttv_resume,
4621 #endif
4622 };
4623
4624 static int __init bttv_init_module(void)
4625 {
4626 int ret;
4627
4628 bttv_num = 0;
4629
4630 printk(KERN_INFO "bttv: driver version %d.%d.%d loaded\n",
4631 (BTTV_VERSION_CODE >> 16) & 0xff,
4632 (BTTV_VERSION_CODE >> 8) & 0xff,
4633 BTTV_VERSION_CODE & 0xff);
4634 #ifdef SNAPSHOT
4635 printk(KERN_INFO "bttv: snapshot date %04d-%02d-%02d\n",
4636 SNAPSHOT/10000, (SNAPSHOT/100)%100, SNAPSHOT%100);
4637 #endif
4638 if (gbuffers < 2 || gbuffers > VIDEO_MAX_FRAME)
4639 gbuffers = 2;
4640 if (gbufsize < 0 || gbufsize > BTTV_MAX_FBUF)
4641 gbufsize = BTTV_MAX_FBUF;
4642 gbufsize = (gbufsize + PAGE_SIZE - 1) & PAGE_MASK;
4643 if (bttv_verbose)
4644 printk(KERN_INFO "bttv: using %d buffers with %dk (%d pages) each for capture\n",
4645 gbuffers, gbufsize >> 10, gbufsize >> PAGE_SHIFT);
4646
4647 bttv_check_chipset();
4648
4649 ret = bus_register(&bttv_sub_bus_type);
4650 if (ret < 0) {
4651 printk(KERN_WARNING "bttv: bus_register error: %d\n", ret);
4652 return ret;
4653 }
4654 ret = pci_register_driver(&bttv_pci_driver);
4655 if (ret < 0)
4656 bus_unregister(&bttv_sub_bus_type);
4657
4658 return ret;
4659 }
4660
4661 static void __exit bttv_cleanup_module(void)
4662 {
4663 pci_unregister_driver(&bttv_pci_driver);
4664 bus_unregister(&bttv_sub_bus_type);
4665 }
4666
4667 module_init(bttv_init_module);
4668 module_exit(bttv_cleanup_module);
4669
4670 /*
4671 * Local variables:
4672 * c-basic-offset: 8
4673 * End:
4674 */
kernel source for telekom puls (alcatel/mediatek)