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[pohmelfs.git] / drivers / media / video / bt8xx / bttv-driver.c
blob76c301f05095375ec21d6956d00a9d69f8b33da6
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 #define pr_fmt(fmt) KBUILD_MODNAME ": " fmt
38
39 #include <linux/init.h>
40 #include <linux/module.h>
41 #include <linux/delay.h>
42 #include <linux/slab.h>
43 #include <linux/errno.h>
44 #include <linux/fs.h>
45 #include <linux/kernel.h>
46 #include <linux/sched.h>
47 #include <linux/interrupt.h>
48 #include <linux/kdev_t.h>
49 #include "bttvp.h"
50 #include <media/v4l2-common.h>
51 #include <media/v4l2-ioctl.h>
52 #include <media/tvaudio.h>
53 #include <media/msp3400.h>
54
55 #include <linux/dma-mapping.h>
56
57 #include <asm/io.h>
58 #include <asm/byteorder.h>
59
60 #include <media/saa6588.h>
61
62 #define BTTV_VERSION "0.9.19"
63
64 unsigned int bttv_num; /* number of Bt848s in use */
65 struct bttv *bttvs[BTTV_MAX];
66
67 unsigned int bttv_debug;
68 unsigned int bttv_verbose = 1;
69 unsigned int bttv_gpio;
70
71 /* config variables */
72 #ifdef __BIG_ENDIAN
73 static unsigned int bigendian=1;
74 #else
75 static unsigned int bigendian;
76 #endif
77 static unsigned int radio[BTTV_MAX];
78 static unsigned int irq_debug;
79 static unsigned int gbuffers = 8;
80 static unsigned int gbufsize = 0x208000;
81 static unsigned int reset_crop = 1;
82
83 static int video_nr[BTTV_MAX] = { [0 ... (BTTV_MAX-1)] = -1 };
84 static int radio_nr[BTTV_MAX] = { [0 ... (BTTV_MAX-1)] = -1 };
85 static int vbi_nr[BTTV_MAX] = { [0 ... (BTTV_MAX-1)] = -1 };
86 static int debug_latency;
87 static int disable_ir;
88
89 static unsigned int fdsr;
90
91 /* options */
92 static unsigned int combfilter;
93 static unsigned int lumafilter;
94 static unsigned int automute = 1;
95 static unsigned int chroma_agc;
96 static unsigned int adc_crush = 1;
97 static unsigned int whitecrush_upper = 0xCF;
98 static unsigned int whitecrush_lower = 0x7F;
99 static unsigned int vcr_hack;
100 static unsigned int irq_iswitch;
101 static unsigned int uv_ratio = 50;
102 static unsigned int full_luma_range;
103 static unsigned int coring;
104
105 /* API features (turn on/off stuff for testing) */
106 static unsigned int v4l2 = 1;
107
108 /* insmod args */
109 module_param(bttv_verbose, int, 0644);
110 module_param(bttv_gpio, int, 0644);
111 module_param(bttv_debug, int, 0644);
112 module_param(irq_debug, int, 0644);
113 module_param(debug_latency, int, 0644);
114 module_param(disable_ir, int, 0444);
115
116 module_param(fdsr, int, 0444);
117 module_param(gbuffers, int, 0444);
118 module_param(gbufsize, int, 0444);
119 module_param(reset_crop, int, 0444);
120
121 module_param(v4l2, int, 0644);
122 module_param(bigendian, int, 0644);
123 module_param(irq_iswitch, int, 0644);
124 module_param(combfilter, int, 0444);
125 module_param(lumafilter, int, 0444);
126 module_param(automute, int, 0444);
127 module_param(chroma_agc, int, 0444);
128 module_param(adc_crush, int, 0444);
129 module_param(whitecrush_upper, int, 0444);
130 module_param(whitecrush_lower, int, 0444);
131 module_param(vcr_hack, int, 0444);
132 module_param(uv_ratio, int, 0444);
133 module_param(full_luma_range, int, 0444);
134 module_param(coring, int, 0444);
135
136 module_param_array(radio, int, NULL, 0444);
137 module_param_array(video_nr, int, NULL, 0444);
138 module_param_array(radio_nr, int, NULL, 0444);
139 module_param_array(vbi_nr, int, NULL, 0444);
140
141 MODULE_PARM_DESC(radio,"The TV card supports radio, default is 0 (no)");
142 MODULE_PARM_DESC(bigendian,"byte order of the framebuffer, default is native endian");
143 MODULE_PARM_DESC(bttv_verbose,"verbose startup messages, default is 1 (yes)");
144 MODULE_PARM_DESC(bttv_gpio,"log gpio changes, default is 0 (no)");
145 MODULE_PARM_DESC(bttv_debug,"debug messages, default is 0 (no)");
146 MODULE_PARM_DESC(irq_debug,"irq handler debug messages, default is 0 (no)");
147 MODULE_PARM_DESC(disable_ir, "disable infrared remote support");
148 MODULE_PARM_DESC(gbuffers,"number of capture buffers. range 2-32, default 8");
149 MODULE_PARM_DESC(gbufsize,"size of the capture buffers, default is 0x208000");
150 MODULE_PARM_DESC(reset_crop,"reset cropping parameters at open(), default "
151 "is 1 (yes) for compatibility with older applications");
152 MODULE_PARM_DESC(automute,"mute audio on bad/missing video signal, default is 1 (yes)");
153 MODULE_PARM_DESC(chroma_agc,"enables the AGC of chroma signal, default is 0 (no)");
154 MODULE_PARM_DESC(adc_crush,"enables the luminance ADC crush, default is 1 (yes)");
155 MODULE_PARM_DESC(whitecrush_upper,"sets the white crush upper value, default is 207");
156 MODULE_PARM_DESC(whitecrush_lower,"sets the white crush lower value, default is 127");
157 MODULE_PARM_DESC(vcr_hack,"enables the VCR hack (improves synch on poor VCR tapes), default is 0 (no)");
158 MODULE_PARM_DESC(irq_iswitch,"switch inputs in irq handler");
159 MODULE_PARM_DESC(uv_ratio,"ratio between u and v gains, default is 50");
160 MODULE_PARM_DESC(full_luma_range,"use the full luma range, default is 0 (no)");
161 MODULE_PARM_DESC(coring,"set the luma coring level, default is 0 (no)");
162 MODULE_PARM_DESC(video_nr, "video device numbers");
163 MODULE_PARM_DESC(vbi_nr, "vbi device numbers");
164 MODULE_PARM_DESC(radio_nr, "radio device numbers");
165
166 MODULE_DESCRIPTION("bttv - v4l/v4l2 driver module for bt848/878 based cards");
167 MODULE_AUTHOR("Ralph Metzler & Marcus Metzler & Gerd Knorr");
168 MODULE_LICENSE("GPL");
169 MODULE_VERSION(BTTV_VERSION);
170
171 /* ----------------------------------------------------------------------- */
172 /* sysfs */
173
174 static ssize_t show_card(struct device *cd,
175 struct device_attribute *attr, char *buf)
176 {
177 struct video_device *vfd = container_of(cd, struct video_device, dev);
178 struct bttv *btv = video_get_drvdata(vfd);
179 return sprintf(buf, "%d\n", btv ? btv->c.type : UNSET);
180 }
181 static DEVICE_ATTR(card, S_IRUGO, show_card, NULL);
182
183 /* ----------------------------------------------------------------------- */
184 /* dvb auto-load setup */
185 #if defined(CONFIG_MODULES) && defined(MODULE)
186 static void request_module_async(struct work_struct *work)
187 {
188 request_module("dvb-bt8xx");
189 }
190
191 static void request_modules(struct bttv *dev)
192 {
193 INIT_WORK(&dev->request_module_wk, request_module_async);
194 schedule_work(&dev->request_module_wk);
195 }
196
197 static void flush_request_modules(struct bttv *dev)
198 {
199 flush_work_sync(&dev->request_module_wk);
200 }
201 #else
202 #define request_modules(dev)
203 #define flush_request_modules(dev)
204 #endif /* CONFIG_MODULES */
205
206
207 /* ----------------------------------------------------------------------- */
208 /* static data */
209
210 /* special timing tables from conexant... */
211 static u8 SRAM_Table[][60] =
212 {
213 /* PAL digital input over GPIO[7:0] */
214 {
215 45, // 45 bytes following
216 0x36,0x11,0x01,0x00,0x90,0x02,0x05,0x10,0x04,0x16,
217 0x12,0x05,0x11,0x00,0x04,0x12,0xC0,0x00,0x31,0x00,
218 0x06,0x51,0x08,0x03,0x89,0x08,0x07,0xC0,0x44,0x00,
219 0x81,0x01,0x01,0xA9,0x0D,0x02,0x02,0x50,0x03,0x37,
220 0x37,0x00,0xAF,0x21,0x00
221 },
222 /* NTSC digital input over GPIO[7:0] */
223 {
224 51, // 51 bytes following
225 0x0C,0xC0,0x00,0x00,0x90,0x02,0x03,0x10,0x03,0x06,
226 0x10,0x04,0x12,0x12,0x05,0x02,0x13,0x04,0x19,0x00,
227 0x04,0x39,0x00,0x06,0x59,0x08,0x03,0x83,0x08,0x07,
228 0x03,0x50,0x00,0xC0,0x40,0x00,0x86,0x01,0x01,0xA6,
229 0x0D,0x02,0x03,0x11,0x01,0x05,0x37,0x00,0xAC,0x21,
230 0x00,
231 },
232 // TGB_NTSC392 // quartzsight
233 // This table has been modified to be used for Fusion Rev D
234 {
235 0x2A, // size of table = 42
236 0x06, 0x08, 0x04, 0x0a, 0xc0, 0x00, 0x18, 0x08, 0x03, 0x24,
237 0x08, 0x07, 0x02, 0x90, 0x02, 0x08, 0x10, 0x04, 0x0c, 0x10,
238 0x05, 0x2c, 0x11, 0x04, 0x55, 0x48, 0x00, 0x05, 0x50, 0x00,
239 0xbf, 0x0c, 0x02, 0x2f, 0x3d, 0x00, 0x2f, 0x3f, 0x00, 0xc3,
240 0x20, 0x00
241 }
242 };
243
244 /* minhdelayx1 first video pixel we can capture on a line and
245 hdelayx1 start of active video, both relative to rising edge of
246 /HRESET pulse (0H) in 1 / fCLKx1.
247 swidth width of active video and
248 totalwidth total line width, both in 1 / fCLKx1.
249 sqwidth total line width in square pixels.
250 vdelay start of active video in 2 * field lines relative to
251 trailing edge of /VRESET pulse (VDELAY register).
252 sheight height of active video in 2 * field lines.
253 videostart0 ITU-R frame line number of the line corresponding
254 to vdelay in the first field. */
255 #define CROPCAP(minhdelayx1, hdelayx1, swidth, totalwidth, sqwidth, \
256 vdelay, sheight, videostart0) \
257 .cropcap.bounds.left = minhdelayx1, \
258 /* * 2 because vertically we count field lines times two, */ \
259 /* e.g. 23 * 2 to 23 * 2 + 576 in PAL-BGHI defrect. */ \
260 .cropcap.bounds.top = (videostart0) * 2 - (vdelay) + MIN_VDELAY, \
261 /* 4 is a safety margin at the end of the line. */ \
262 .cropcap.bounds.width = (totalwidth) - (minhdelayx1) - 4, \
263 .cropcap.bounds.height = (sheight) + (vdelay) - MIN_VDELAY, \
264 .cropcap.defrect.left = hdelayx1, \
265 .cropcap.defrect.top = (videostart0) * 2, \
266 .cropcap.defrect.width = swidth, \
267 .cropcap.defrect.height = sheight, \
268 .cropcap.pixelaspect.numerator = totalwidth, \
269 .cropcap.pixelaspect.denominator = sqwidth,
270
271 const struct bttv_tvnorm bttv_tvnorms[] = {
272 /* PAL-BDGHI */
273 /* max. active video is actually 922, but 924 is divisible by 4 and 3! */
274 /* actually, max active PAL with HSCALE=0 is 948, NTSC is 768 - nil */
275 {
276 .v4l2_id = V4L2_STD_PAL,
277 .name = "PAL",
278 .Fsc = 35468950,
279 .swidth = 924,
280 .sheight = 576,
281 .totalwidth = 1135,
282 .adelay = 0x7f,
283 .bdelay = 0x72,
284 .iform = (BT848_IFORM_PAL_BDGHI|BT848_IFORM_XT1),
285 .scaledtwidth = 1135,
286 .hdelayx1 = 186,
287 .hactivex1 = 924,
288 .vdelay = 0x20,
289 .vbipack = 255, /* min (2048 / 4, 0x1ff) & 0xff */
290 .sram = 0,
291 /* ITU-R frame line number of the first VBI line
292 we can capture, of the first and second field.
293 The last line is determined by cropcap.bounds. */
294 .vbistart = { 7, 320 },
295 CROPCAP(/* minhdelayx1 */ 68,
296 /* hdelayx1 */ 186,
297 /* Should be (768 * 1135 + 944 / 2) / 944.
298 cropcap.defrect is used for image width
299 checks, so we keep the old value 924. */
300 /* swidth */ 924,
301 /* totalwidth */ 1135,
302 /* sqwidth */ 944,
303 /* vdelay */ 0x20,
304 /* sheight */ 576,
305 /* videostart0 */ 23)
306 /* bt878 (and bt848?) can capture another
307 line below active video. */
308 .cropcap.bounds.height = (576 + 2) + 0x20 - 2,
309 },{
310 .v4l2_id = V4L2_STD_NTSC_M | V4L2_STD_NTSC_M_KR,
311 .name = "NTSC",
312 .Fsc = 28636363,
313 .swidth = 768,
314 .sheight = 480,
315 .totalwidth = 910,
316 .adelay = 0x68,
317 .bdelay = 0x5d,
318 .iform = (BT848_IFORM_NTSC|BT848_IFORM_XT0),
319 .scaledtwidth = 910,
320 .hdelayx1 = 128,
321 .hactivex1 = 910,
322 .vdelay = 0x1a,
323 .vbipack = 144, /* min (1600 / 4, 0x1ff) & 0xff */
324 .sram = 1,
325 .vbistart = { 10, 273 },
326 CROPCAP(/* minhdelayx1 */ 68,
327 /* hdelayx1 */ 128,
328 /* Should be (640 * 910 + 780 / 2) / 780? */
329 /* swidth */ 768,
330 /* totalwidth */ 910,
331 /* sqwidth */ 780,
332 /* vdelay */ 0x1a,
333 /* sheight */ 480,
334 /* videostart0 */ 23)
335 },{
336 .v4l2_id = V4L2_STD_SECAM,
337 .name = "SECAM",
338 .Fsc = 35468950,
339 .swidth = 924,
340 .sheight = 576,
341 .totalwidth = 1135,
342 .adelay = 0x7f,
343 .bdelay = 0xb0,
344 .iform = (BT848_IFORM_SECAM|BT848_IFORM_XT1),
345 .scaledtwidth = 1135,
346 .hdelayx1 = 186,
347 .hactivex1 = 922,
348 .vdelay = 0x20,
349 .vbipack = 255,
350 .sram = 0, /* like PAL, correct? */
351 .vbistart = { 7, 320 },
352 CROPCAP(/* minhdelayx1 */ 68,
353 /* hdelayx1 */ 186,
354 /* swidth */ 924,
355 /* totalwidth */ 1135,
356 /* sqwidth */ 944,
357 /* vdelay */ 0x20,
358 /* sheight */ 576,
359 /* videostart0 */ 23)
360 },{
361 .v4l2_id = V4L2_STD_PAL_Nc,
362 .name = "PAL-Nc",
363 .Fsc = 28636363,
364 .swidth = 640,
365 .sheight = 576,
366 .totalwidth = 910,
367 .adelay = 0x68,
368 .bdelay = 0x5d,
369 .iform = (BT848_IFORM_PAL_NC|BT848_IFORM_XT0),
370 .scaledtwidth = 780,
371 .hdelayx1 = 130,
372 .hactivex1 = 734,
373 .vdelay = 0x1a,
374 .vbipack = 144,
375 .sram = -1,
376 .vbistart = { 7, 320 },
377 CROPCAP(/* minhdelayx1 */ 68,
378 /* hdelayx1 */ 130,
379 /* swidth */ (640 * 910 + 780 / 2) / 780,
380 /* totalwidth */ 910,
381 /* sqwidth */ 780,
382 /* vdelay */ 0x1a,
383 /* sheight */ 576,
384 /* videostart0 */ 23)
385 },{
386 .v4l2_id = V4L2_STD_PAL_M,
387 .name = "PAL-M",
388 .Fsc = 28636363,
389 .swidth = 640,
390 .sheight = 480,
391 .totalwidth = 910,
392 .adelay = 0x68,
393 .bdelay = 0x5d,
394 .iform = (BT848_IFORM_PAL_M|BT848_IFORM_XT0),
395 .scaledtwidth = 780,
396 .hdelayx1 = 135,
397 .hactivex1 = 754,
398 .vdelay = 0x1a,
399 .vbipack = 144,
400 .sram = -1,
401 .vbistart = { 10, 273 },
402 CROPCAP(/* minhdelayx1 */ 68,
403 /* hdelayx1 */ 135,
404 /* swidth */ (640 * 910 + 780 / 2) / 780,
405 /* totalwidth */ 910,
406 /* sqwidth */ 780,
407 /* vdelay */ 0x1a,
408 /* sheight */ 480,
409 /* videostart0 */ 23)
410 },{
411 .v4l2_id = V4L2_STD_PAL_N,
412 .name = "PAL-N",
413 .Fsc = 35468950,
414 .swidth = 768,
415 .sheight = 576,
416 .totalwidth = 1135,
417 .adelay = 0x7f,
418 .bdelay = 0x72,
419 .iform = (BT848_IFORM_PAL_N|BT848_IFORM_XT1),
420 .scaledtwidth = 944,
421 .hdelayx1 = 186,
422 .hactivex1 = 922,
423 .vdelay = 0x20,
424 .vbipack = 144,
425 .sram = -1,
426 .vbistart = { 7, 320 },
427 CROPCAP(/* minhdelayx1 */ 68,
428 /* hdelayx1 */ 186,
429 /* swidth */ (768 * 1135 + 944 / 2) / 944,
430 /* totalwidth */ 1135,
431 /* sqwidth */ 944,
432 /* vdelay */ 0x20,
433 /* sheight */ 576,
434 /* videostart0 */ 23)
435 },{
436 .v4l2_id = V4L2_STD_NTSC_M_JP,
437 .name = "NTSC-JP",
438 .Fsc = 28636363,
439 .swidth = 640,
440 .sheight = 480,
441 .totalwidth = 910,
442 .adelay = 0x68,
443 .bdelay = 0x5d,
444 .iform = (BT848_IFORM_NTSC_J|BT848_IFORM_XT0),
445 .scaledtwidth = 780,
446 .hdelayx1 = 135,
447 .hactivex1 = 754,
448 .vdelay = 0x16,
449 .vbipack = 144,
450 .sram = -1,
451 .vbistart = { 10, 273 },
452 CROPCAP(/* minhdelayx1 */ 68,
453 /* hdelayx1 */ 135,
454 /* swidth */ (640 * 910 + 780 / 2) / 780,
455 /* totalwidth */ 910,
456 /* sqwidth */ 780,
457 /* vdelay */ 0x16,
458 /* sheight */ 480,
459 /* videostart0 */ 23)
460 },{
461 /* that one hopefully works with the strange timing
462 * which video recorders produce when playing a NTSC
463 * tape on a PAL TV ... */
464 .v4l2_id = V4L2_STD_PAL_60,
465 .name = "PAL-60",
466 .Fsc = 35468950,
467 .swidth = 924,
468 .sheight = 480,
469 .totalwidth = 1135,
470 .adelay = 0x7f,
471 .bdelay = 0x72,
472 .iform = (BT848_IFORM_PAL_BDGHI|BT848_IFORM_XT1),
473 .scaledtwidth = 1135,
474 .hdelayx1 = 186,
475 .hactivex1 = 924,
476 .vdelay = 0x1a,
477 .vbipack = 255,
478 .vtotal = 524,
479 .sram = -1,
480 .vbistart = { 10, 273 },
481 CROPCAP(/* minhdelayx1 */ 68,
482 /* hdelayx1 */ 186,
483 /* swidth */ 924,
484 /* totalwidth */ 1135,
485 /* sqwidth */ 944,
486 /* vdelay */ 0x1a,
487 /* sheight */ 480,
488 /* videostart0 */ 23)
489 }
490 };
491 static const unsigned int BTTV_TVNORMS = ARRAY_SIZE(bttv_tvnorms);
492
493 /* ----------------------------------------------------------------------- */
494 /* bttv format list
495 packed pixel formats must come first */
496 static const struct bttv_format formats[] = {
497 {
498 .name = "8 bpp, gray",
499 .fourcc = V4L2_PIX_FMT_GREY,
500 .btformat = BT848_COLOR_FMT_Y8,
501 .depth = 8,
502 .flags = FORMAT_FLAGS_PACKED,
503 },{
504 .name = "8 bpp, dithered color",
505 .fourcc = V4L2_PIX_FMT_HI240,
506 .btformat = BT848_COLOR_FMT_RGB8,
507 .depth = 8,
508 .flags = FORMAT_FLAGS_PACKED | FORMAT_FLAGS_DITHER,
509 },{
510 .name = "15 bpp RGB, le",
511 .fourcc = V4L2_PIX_FMT_RGB555,
512 .btformat = BT848_COLOR_FMT_RGB15,
513 .depth = 16,
514 .flags = FORMAT_FLAGS_PACKED,
515 },{
516 .name = "15 bpp RGB, be",
517 .fourcc = V4L2_PIX_FMT_RGB555X,
518 .btformat = BT848_COLOR_FMT_RGB15,
519 .btswap = 0x03, /* byteswap */
520 .depth = 16,
521 .flags = FORMAT_FLAGS_PACKED,
522 },{
523 .name = "16 bpp RGB, le",
524 .fourcc = V4L2_PIX_FMT_RGB565,
525 .btformat = BT848_COLOR_FMT_RGB16,
526 .depth = 16,
527 .flags = FORMAT_FLAGS_PACKED,
528 },{
529 .name = "16 bpp RGB, be",
530 .fourcc = V4L2_PIX_FMT_RGB565X,
531 .btformat = BT848_COLOR_FMT_RGB16,
532 .btswap = 0x03, /* byteswap */
533 .depth = 16,
534 .flags = FORMAT_FLAGS_PACKED,
535 },{
536 .name = "24 bpp RGB, le",
537 .fourcc = V4L2_PIX_FMT_BGR24,
538 .btformat = BT848_COLOR_FMT_RGB24,
539 .depth = 24,
540 .flags = FORMAT_FLAGS_PACKED,
541 },{
542 .name = "32 bpp RGB, le",
543 .fourcc = V4L2_PIX_FMT_BGR32,
544 .btformat = BT848_COLOR_FMT_RGB32,
545 .depth = 32,
546 .flags = FORMAT_FLAGS_PACKED,
547 },{
548 .name = "32 bpp RGB, be",
549 .fourcc = V4L2_PIX_FMT_RGB32,
550 .btformat = BT848_COLOR_FMT_RGB32,
551 .btswap = 0x0f, /* byte+word swap */
552 .depth = 32,
553 .flags = FORMAT_FLAGS_PACKED,
554 },{
555 .name = "4:2:2, packed, YUYV",
556 .fourcc = V4L2_PIX_FMT_YUYV,
557 .btformat = BT848_COLOR_FMT_YUY2,
558 .depth = 16,
559 .flags = FORMAT_FLAGS_PACKED,
560 },{
561 .name = "4:2:2, packed, YUYV",
562 .fourcc = V4L2_PIX_FMT_YUYV,
563 .btformat = BT848_COLOR_FMT_YUY2,
564 .depth = 16,
565 .flags = FORMAT_FLAGS_PACKED,
566 },{
567 .name = "4:2:2, packed, UYVY",
568 .fourcc = V4L2_PIX_FMT_UYVY,
569 .btformat = BT848_COLOR_FMT_YUY2,
570 .btswap = 0x03, /* byteswap */
571 .depth = 16,
572 .flags = FORMAT_FLAGS_PACKED,
573 },{
574 .name = "4:2:2, planar, Y-Cb-Cr",
575 .fourcc = V4L2_PIX_FMT_YUV422P,
576 .btformat = BT848_COLOR_FMT_YCrCb422,
577 .depth = 16,
578 .flags = FORMAT_FLAGS_PLANAR,
579 .hshift = 1,
580 .vshift = 0,
581 },{
582 .name = "4:2:0, planar, Y-Cb-Cr",
583 .fourcc = V4L2_PIX_FMT_YUV420,
584 .btformat = BT848_COLOR_FMT_YCrCb422,
585 .depth = 12,
586 .flags = FORMAT_FLAGS_PLANAR,
587 .hshift = 1,
588 .vshift = 1,
589 },{
590 .name = "4:2:0, planar, Y-Cr-Cb",
591 .fourcc = V4L2_PIX_FMT_YVU420,
592 .btformat = BT848_COLOR_FMT_YCrCb422,
593 .depth = 12,
594 .flags = FORMAT_FLAGS_PLANAR | FORMAT_FLAGS_CrCb,
595 .hshift = 1,
596 .vshift = 1,
597 },{
598 .name = "4:1:1, planar, Y-Cb-Cr",
599 .fourcc = V4L2_PIX_FMT_YUV411P,
600 .btformat = BT848_COLOR_FMT_YCrCb411,
601 .depth = 12,
602 .flags = FORMAT_FLAGS_PLANAR,
603 .hshift = 2,
604 .vshift = 0,
605 },{
606 .name = "4:1:0, planar, Y-Cb-Cr",
607 .fourcc = V4L2_PIX_FMT_YUV410,
608 .btformat = BT848_COLOR_FMT_YCrCb411,
609 .depth = 9,
610 .flags = FORMAT_FLAGS_PLANAR,
611 .hshift = 2,
612 .vshift = 2,
613 },{
614 .name = "4:1:0, planar, Y-Cr-Cb",
615 .fourcc = V4L2_PIX_FMT_YVU410,
616 .btformat = BT848_COLOR_FMT_YCrCb411,
617 .depth = 9,
618 .flags = FORMAT_FLAGS_PLANAR | FORMAT_FLAGS_CrCb,
619 .hshift = 2,
620 .vshift = 2,
621 },{
622 .name = "raw scanlines",
623 .fourcc = -1,
624 .btformat = BT848_COLOR_FMT_RAW,
625 .depth = 8,
626 .flags = FORMAT_FLAGS_RAW,
627 }
628 };
629 static const unsigned int FORMATS = ARRAY_SIZE(formats);
630
631 /* ----------------------------------------------------------------------- */
632
633 #define V4L2_CID_PRIVATE_CHROMA_AGC (V4L2_CID_PRIVATE_BASE + 0)
634 #define V4L2_CID_PRIVATE_COMBFILTER (V4L2_CID_PRIVATE_BASE + 1)
635 #define V4L2_CID_PRIVATE_AUTOMUTE (V4L2_CID_PRIVATE_BASE + 2)
636 #define V4L2_CID_PRIVATE_LUMAFILTER (V4L2_CID_PRIVATE_BASE + 3)
637 #define V4L2_CID_PRIVATE_AGC_CRUSH (V4L2_CID_PRIVATE_BASE + 4)
638 #define V4L2_CID_PRIVATE_VCR_HACK (V4L2_CID_PRIVATE_BASE + 5)
639 #define V4L2_CID_PRIVATE_WHITECRUSH_UPPER (V4L2_CID_PRIVATE_BASE + 6)
640 #define V4L2_CID_PRIVATE_WHITECRUSH_LOWER (V4L2_CID_PRIVATE_BASE + 7)
641 #define V4L2_CID_PRIVATE_UV_RATIO (V4L2_CID_PRIVATE_BASE + 8)
642 #define V4L2_CID_PRIVATE_FULL_LUMA_RANGE (V4L2_CID_PRIVATE_BASE + 9)
643 #define V4L2_CID_PRIVATE_CORING (V4L2_CID_PRIVATE_BASE + 10)
644 #define V4L2_CID_PRIVATE_LASTP1 (V4L2_CID_PRIVATE_BASE + 11)
645
646 static const struct v4l2_queryctrl no_ctl = {
647 .name = "42",
648 .flags = V4L2_CTRL_FLAG_DISABLED,
649 };
650 static const struct v4l2_queryctrl bttv_ctls[] = {
651 /* --- video --- */
652 {
653 .id = V4L2_CID_BRIGHTNESS,
654 .name = "Brightness",
655 .minimum = 0,
656 .maximum = 65535,
657 .step = 256,
658 .default_value = 32768,
659 .type = V4L2_CTRL_TYPE_INTEGER,
660 },{
661 .id = V4L2_CID_CONTRAST,
662 .name = "Contrast",
663 .minimum = 0,
664 .maximum = 65535,
665 .step = 128,
666 .default_value = 32768,
667 .type = V4L2_CTRL_TYPE_INTEGER,
668 },{
669 .id = V4L2_CID_SATURATION,
670 .name = "Saturation",
671 .minimum = 0,
672 .maximum = 65535,
673 .step = 128,
674 .default_value = 32768,
675 .type = V4L2_CTRL_TYPE_INTEGER,
676 },{
677 .id = V4L2_CID_HUE,
678 .name = "Hue",
679 .minimum = 0,
680 .maximum = 65535,
681 .step = 256,
682 .default_value = 32768,
683 .type = V4L2_CTRL_TYPE_INTEGER,
684 },
685 /* --- audio --- */
686 {
687 .id = V4L2_CID_AUDIO_MUTE,
688 .name = "Mute",
689 .minimum = 0,
690 .maximum = 1,
691 .type = V4L2_CTRL_TYPE_BOOLEAN,
692 },{
693 .id = V4L2_CID_AUDIO_VOLUME,
694 .name = "Volume",
695 .minimum = 0,
696 .maximum = 65535,
697 .step = 65535/100,
698 .default_value = 65535,
699 .type = V4L2_CTRL_TYPE_INTEGER,
700 },{
701 .id = V4L2_CID_AUDIO_BALANCE,
702 .name = "Balance",
703 .minimum = 0,
704 .maximum = 65535,
705 .step = 65535/100,
706 .default_value = 32768,
707 .type = V4L2_CTRL_TYPE_INTEGER,
708 },{
709 .id = V4L2_CID_AUDIO_BASS,
710 .name = "Bass",
711 .minimum = 0,
712 .maximum = 65535,
713 .step = 65535/100,
714 .default_value = 32768,
715 .type = V4L2_CTRL_TYPE_INTEGER,
716 },{
717 .id = V4L2_CID_AUDIO_TREBLE,
718 .name = "Treble",
719 .minimum = 0,
720 .maximum = 65535,
721 .step = 65535/100,
722 .default_value = 32768,
723 .type = V4L2_CTRL_TYPE_INTEGER,
724 },
725 /* --- private --- */
726 {
727 .id = V4L2_CID_PRIVATE_CHROMA_AGC,
728 .name = "chroma agc",
729 .minimum = 0,
730 .maximum = 1,
731 .type = V4L2_CTRL_TYPE_BOOLEAN,
732 },{
733 .id = V4L2_CID_PRIVATE_COMBFILTER,
734 .name = "combfilter",
735 .minimum = 0,
736 .maximum = 1,
737 .type = V4L2_CTRL_TYPE_BOOLEAN,
738 },{
739 .id = V4L2_CID_PRIVATE_AUTOMUTE,
740 .name = "automute",
741 .minimum = 0,
742 .maximum = 1,
743 .type = V4L2_CTRL_TYPE_BOOLEAN,
744 },{
745 .id = V4L2_CID_PRIVATE_LUMAFILTER,
746 .name = "luma decimation filter",
747 .minimum = 0,
748 .maximum = 1,
749 .type = V4L2_CTRL_TYPE_BOOLEAN,
750 },{
751 .id = V4L2_CID_PRIVATE_AGC_CRUSH,
752 .name = "agc crush",
753 .minimum = 0,
754 .maximum = 1,
755 .type = V4L2_CTRL_TYPE_BOOLEAN,
756 },{
757 .id = V4L2_CID_PRIVATE_VCR_HACK,
758 .name = "vcr hack",
759 .minimum = 0,
760 .maximum = 1,
761 .type = V4L2_CTRL_TYPE_BOOLEAN,
762 },{
763 .id = V4L2_CID_PRIVATE_WHITECRUSH_UPPER,
764 .name = "whitecrush upper",
765 .minimum = 0,
766 .maximum = 255,
767 .step = 1,
768 .default_value = 0xCF,
769 .type = V4L2_CTRL_TYPE_INTEGER,
770 },{
771 .id = V4L2_CID_PRIVATE_WHITECRUSH_LOWER,
772 .name = "whitecrush lower",
773 .minimum = 0,
774 .maximum = 255,
775 .step = 1,
776 .default_value = 0x7F,
777 .type = V4L2_CTRL_TYPE_INTEGER,
778 },{
779 .id = V4L2_CID_PRIVATE_UV_RATIO,
780 .name = "uv ratio",
781 .minimum = 0,
782 .maximum = 100,
783 .step = 1,
784 .default_value = 50,
785 .type = V4L2_CTRL_TYPE_INTEGER,
786 },{
787 .id = V4L2_CID_PRIVATE_FULL_LUMA_RANGE,
788 .name = "full luma range",
789 .minimum = 0,
790 .maximum = 1,
791 .type = V4L2_CTRL_TYPE_BOOLEAN,
792 },{
793 .id = V4L2_CID_PRIVATE_CORING,
794 .name = "coring",
795 .minimum = 0,
796 .maximum = 3,
797 .step = 1,
798 .default_value = 0,
799 .type = V4L2_CTRL_TYPE_INTEGER,
800 }
801
802
803
804 };
805
806 static const struct v4l2_queryctrl *ctrl_by_id(int id)
807 {
808 int i;
809
810 for (i = 0; i < ARRAY_SIZE(bttv_ctls); i++)
811 if (bttv_ctls[i].id == id)
812 return bttv_ctls+i;
813
814 return NULL;
815 }
816
817 /* ----------------------------------------------------------------------- */
818 /* resource management */
819
820 /*
821 RESOURCE_ allocated by freed by
822
823 VIDEO_READ bttv_read 1) bttv_read 2)
824
825 VIDEO_STREAM VIDIOC_STREAMON VIDIOC_STREAMOFF
826 VIDIOC_QBUF 1) bttv_release
827 VIDIOCMCAPTURE 1)
828
829 OVERLAY VIDIOCCAPTURE on VIDIOCCAPTURE off
830 VIDIOC_OVERLAY on VIDIOC_OVERLAY off
831 3) bttv_release
832
833 VBI VIDIOC_STREAMON VIDIOC_STREAMOFF
834 VIDIOC_QBUF 1) bttv_release
835 bttv_read, bttv_poll 1) 4)
836
837 1) The resource must be allocated when we enter buffer prepare functions
838 and remain allocated while buffers are in the DMA queue.
839 2) This is a single frame read.
840 3) VIDIOC_S_FBUF and VIDIOC_S_FMT (OVERLAY) still work when
841 RESOURCE_OVERLAY is allocated.
842 4) This is a continuous read, implies VIDIOC_STREAMON.
843
844 Note this driver permits video input and standard changes regardless if
845 resources are allocated.
846 */
847
848 #define VBI_RESOURCES (RESOURCE_VBI)
849 #define VIDEO_RESOURCES (RESOURCE_VIDEO_READ | \
850 RESOURCE_VIDEO_STREAM | \
851 RESOURCE_OVERLAY)
852
853 static
854 int check_alloc_btres_lock(struct bttv *btv, struct bttv_fh *fh, int bit)
855 {
856 int xbits; /* mutual exclusive resources */
857
858 if (fh->resources & bit)
859 /* have it already allocated */
860 return 1;
861
862 xbits = bit;
863 if (bit & (RESOURCE_VIDEO_READ | RESOURCE_VIDEO_STREAM))
864 xbits |= RESOURCE_VIDEO_READ | RESOURCE_VIDEO_STREAM;
865
866 /* is it free? */
867 if (btv->resources & xbits) {
868 /* no, someone else uses it */
869 goto fail;
870 }
871
872 if ((bit & VIDEO_RESOURCES)
873 && 0 == (btv->resources & VIDEO_RESOURCES)) {
874 /* Do crop - use current, don't - use default parameters. */
875 __s32 top = btv->crop[!!fh->do_crop].rect.top;
876
877 if (btv->vbi_end > top)
878 goto fail;
879
880 /* We cannot capture the same line as video and VBI data.
881 Claim scan lines crop[].rect.top to bottom. */
882 btv->crop_start = top;
883 } else if (bit & VBI_RESOURCES) {
884 __s32 end = fh->vbi_fmt.end;
885
886 if (end > btv->crop_start)
887 goto fail;
888
889 /* Claim scan lines above fh->vbi_fmt.end. */
890 btv->vbi_end = end;
891 }
892
893 /* it's free, grab it */
894 fh->resources |= bit;
895 btv->resources |= bit;
896 return 1;
897
898 fail:
899 return 0;
900 }
901
902 static
903 int check_btres(struct bttv_fh *fh, int bit)
904 {
905 return (fh->resources & bit);
906 }
907
908 static
909 int locked_btres(struct bttv *btv, int bit)
910 {
911 return (btv->resources & bit);
912 }
913
914 /* Call with btv->lock down. */
915 static void
916 disclaim_vbi_lines(struct bttv *btv)
917 {
918 btv->vbi_end = 0;
919 }
920
921 /* Call with btv->lock down. */
922 static void
923 disclaim_video_lines(struct bttv *btv)
924 {
925 const struct bttv_tvnorm *tvnorm;
926 u8 crop;
927
928 tvnorm = &bttv_tvnorms[btv->tvnorm];
929 btv->crop_start = tvnorm->cropcap.bounds.top
930 + tvnorm->cropcap.bounds.height;
931
932 /* VBI capturing ends at VDELAY, start of video capturing, no
933 matter how many lines the VBI RISC program expects. When video
934 capturing is off, it shall no longer "preempt" VBI capturing,
935 so we set VDELAY to maximum. */
936 crop = btread(BT848_E_CROP) | 0xc0;
937 btwrite(crop, BT848_E_CROP);
938 btwrite(0xfe, BT848_E_VDELAY_LO);
939 btwrite(crop, BT848_O_CROP);
940 btwrite(0xfe, BT848_O_VDELAY_LO);
941 }
942
943 static
944 void free_btres_lock(struct bttv *btv, struct bttv_fh *fh, int bits)
945 {
946 if ((fh->resources & bits) != bits) {
947 /* trying to free resources not allocated by us ... */
948 pr_err("BUG! (btres)\n");
949 }
950 fh->resources &= ~bits;
951 btv->resources &= ~bits;
952
953 bits = btv->resources;
954
955 if (0 == (bits & VIDEO_RESOURCES))
956 disclaim_video_lines(btv);
957
958 if (0 == (bits & VBI_RESOURCES))
959 disclaim_vbi_lines(btv);
960 }
961
962 /* ----------------------------------------------------------------------- */
963 /* If Bt848a or Bt849, use PLL for PAL/SECAM and crystal for NTSC */
964
965 /* Frequency = (F_input / PLL_X) * PLL_I.PLL_F/PLL_C
966 PLL_X = Reference pre-divider (0=1, 1=2)
967 PLL_C = Post divider (0=6, 1=4)
968 PLL_I = Integer input
969 PLL_F = Fractional input
970
971 F_input = 28.636363 MHz:
972 PAL (CLKx2 = 35.46895 MHz): PLL_X = 1, PLL_I = 0x0E, PLL_F = 0xDCF9, PLL_C = 0
973 */
974
975 static void set_pll_freq(struct bttv *btv, unsigned int fin, unsigned int fout)
976 {
977 unsigned char fl, fh, fi;
978
979 /* prevent overflows */
980 fin/=4;
981 fout/=4;
982
983 fout*=12;
984 fi=fout/fin;
985
986 fout=(fout%fin)*256;
987 fh=fout/fin;
988
989 fout=(fout%fin)*256;
990 fl=fout/fin;
991
992 btwrite(fl, BT848_PLL_F_LO);
993 btwrite(fh, BT848_PLL_F_HI);
994 btwrite(fi|BT848_PLL_X, BT848_PLL_XCI);
995 }
996
997 static void set_pll(struct bttv *btv)
998 {
999 int i;
1000
1001 if (!btv->pll.pll_crystal)
1002 return;
1003
1004 if (btv->pll.pll_ofreq == btv->pll.pll_current) {
1005 dprintk("%d: PLL: no change required\n", btv->c.nr);
1006 return;
1007 }
1008
1009 if (btv->pll.pll_ifreq == btv->pll.pll_ofreq) {
1010 /* no PLL needed */
1011 if (btv->pll.pll_current == 0)
1012 return;
1013 if (bttv_verbose)
1014 pr_info("%d: PLL can sleep, using XTAL (%d)\n",
1015 btv->c.nr, btv->pll.pll_ifreq);
1016 btwrite(0x00,BT848_TGCTRL);
1017 btwrite(0x00,BT848_PLL_XCI);
1018 btv->pll.pll_current = 0;
1019 return;
1020 }
1021
1022 if (bttv_verbose)
1023 pr_info("%d: Setting PLL: %d => %d (needs up to 100ms)\n",
1024 btv->c.nr,
1025 btv->pll.pll_ifreq, btv->pll.pll_ofreq);
1026 set_pll_freq(btv, btv->pll.pll_ifreq, btv->pll.pll_ofreq);
1027
1028 for (i=0; i<10; i++) {
1029 /* Let other people run while the PLL stabilizes */
1030 msleep(10);
1031
1032 if (btread(BT848_DSTATUS) & BT848_DSTATUS_PLOCK) {
1033 btwrite(0,BT848_DSTATUS);
1034 } else {
1035 btwrite(0x08,BT848_TGCTRL);
1036 btv->pll.pll_current = btv->pll.pll_ofreq;
1037 if (bttv_verbose)
1038 pr_info("PLL set ok\n");
1039 return;
1040 }
1041 }
1042 btv->pll.pll_current = -1;
1043 if (bttv_verbose)
1044 pr_info("Setting PLL failed\n");
1045 return;
1046 }
1047
1048 /* used to switch between the bt848's analog/digital video capture modes */
1049 static void bt848A_set_timing(struct bttv *btv)
1050 {
1051 int i, len;
1052 int table_idx = bttv_tvnorms[btv->tvnorm].sram;
1053 int fsc = bttv_tvnorms[btv->tvnorm].Fsc;
1054
1055 if (btv->input == btv->dig) {
1056 dprintk("%d: load digital timing table (table_idx=%d)\n",
1057 btv->c.nr,table_idx);
1058
1059 /* timing change...reset timing generator address */
1060 btwrite(0x00, BT848_TGCTRL);
1061 btwrite(0x02, BT848_TGCTRL);
1062 btwrite(0x00, BT848_TGCTRL);
1063
1064 len=SRAM_Table[table_idx][0];
1065 for(i = 1; i <= len; i++)
1066 btwrite(SRAM_Table[table_idx][i],BT848_TGLB);
1067 btv->pll.pll_ofreq = 27000000;
1068
1069 set_pll(btv);
1070 btwrite(0x11, BT848_TGCTRL);
1071 btwrite(0x41, BT848_DVSIF);
1072 } else {
1073 btv->pll.pll_ofreq = fsc;
1074 set_pll(btv);
1075 btwrite(0x0, BT848_DVSIF);
1076 }
1077 }
1078
1079 /* ----------------------------------------------------------------------- */
1080
1081 static void bt848_bright(struct bttv *btv, int bright)
1082 {
1083 int value;
1084
1085 // printk("set bright: %d\n", bright); // DEBUG
1086 btv->bright = bright;
1087
1088 /* We want -128 to 127 we get 0-65535 */
1089 value = (bright >> 8) - 128;
1090 btwrite(value & 0xff, BT848_BRIGHT);
1091 }
1092
1093 static void bt848_hue(struct bttv *btv, int hue)
1094 {
1095 int value;
1096
1097 btv->hue = hue;
1098
1099 /* -128 to 127 */
1100 value = (hue >> 8) - 128;
1101 btwrite(value & 0xff, BT848_HUE);
1102 }
1103
1104 static void bt848_contrast(struct bttv *btv, int cont)
1105 {
1106 int value,hibit;
1107
1108 btv->contrast = cont;
1109
1110 /* 0-511 */
1111 value = (cont >> 7);
1112 hibit = (value >> 6) & 4;
1113 btwrite(value & 0xff, BT848_CONTRAST_LO);
1114 btaor(hibit, ~4, BT848_E_CONTROL);
1115 btaor(hibit, ~4, BT848_O_CONTROL);
1116 }
1117
1118 static void bt848_sat(struct bttv *btv, int color)
1119 {
1120 int val_u,val_v,hibits;
1121
1122 btv->saturation = color;
1123
1124 /* 0-511 for the color */
1125 val_u = ((color * btv->opt_uv_ratio) / 50) >> 7;
1126 val_v = (((color * (100 - btv->opt_uv_ratio) / 50) >>7)*180L)/254;
1127 hibits = (val_u >> 7) & 2;
1128 hibits |= (val_v >> 8) & 1;
1129 btwrite(val_u & 0xff, BT848_SAT_U_LO);
1130 btwrite(val_v & 0xff, BT848_SAT_V_LO);
1131 btaor(hibits, ~3, BT848_E_CONTROL);
1132 btaor(hibits, ~3, BT848_O_CONTROL);
1133 }
1134
1135 /* ----------------------------------------------------------------------- */
1136
1137 static int
1138 video_mux(struct bttv *btv, unsigned int input)
1139 {
1140 int mux,mask2;
1141
1142 if (input >= bttv_tvcards[btv->c.type].video_inputs)
1143 return -EINVAL;
1144
1145 /* needed by RemoteVideo MX */
1146 mask2 = bttv_tvcards[btv->c.type].gpiomask2;
1147 if (mask2)
1148 gpio_inout(mask2,mask2);
1149
1150 if (input == btv->svhs) {
1151 btor(BT848_CONTROL_COMP, BT848_E_CONTROL);
1152 btor(BT848_CONTROL_COMP, BT848_O_CONTROL);
1153 } else {
1154 btand(~BT848_CONTROL_COMP, BT848_E_CONTROL);
1155 btand(~BT848_CONTROL_COMP, BT848_O_CONTROL);
1156 }
1157 mux = bttv_muxsel(btv, input);
1158 btaor(mux<<5, ~(3<<5), BT848_IFORM);
1159 dprintk("%d: video mux: input=%d mux=%d\n", btv->c.nr, input, mux);
1160
1161 /* card specific hook */
1162 if(bttv_tvcards[btv->c.type].muxsel_hook)
1163 bttv_tvcards[btv->c.type].muxsel_hook (btv, input);
1164 return 0;
1165 }
1166
1167 static char *audio_modes[] = {
1168 "audio: tuner", "audio: radio", "audio: extern",
1169 "audio: intern", "audio: mute"
1170 };
1171
1172 static int
1173 audio_mux(struct bttv *btv, int input, int mute)
1174 {
1175 int gpio_val, signal;
1176 struct v4l2_control ctrl;
1177
1178 gpio_inout(bttv_tvcards[btv->c.type].gpiomask,
1179 bttv_tvcards[btv->c.type].gpiomask);
1180 signal = btread(BT848_DSTATUS) & BT848_DSTATUS_HLOC;
1181
1182 btv->mute = mute;
1183 btv->audio = input;
1184
1185 /* automute */
1186 mute = mute || (btv->opt_automute && !signal && !btv->radio_user);
1187
1188 if (mute)
1189 gpio_val = bttv_tvcards[btv->c.type].gpiomute;
1190 else
1191 gpio_val = bttv_tvcards[btv->c.type].gpiomux[input];
1192
1193 switch (btv->c.type) {
1194 case BTTV_BOARD_VOODOOTV_FM:
1195 case BTTV_BOARD_VOODOOTV_200:
1196 gpio_val = bttv_tda9880_setnorm(btv, gpio_val);
1197 break;
1198
1199 default:
1200 gpio_bits(bttv_tvcards[btv->c.type].gpiomask, gpio_val);
1201 }
1202
1203 if (bttv_gpio)
1204 bttv_gpio_tracking(btv, audio_modes[mute ? 4 : input]);
1205 if (in_interrupt())
1206 return 0;
1207
1208 ctrl.id = V4L2_CID_AUDIO_MUTE;
1209 ctrl.value = btv->mute;
1210 bttv_call_all(btv, core, s_ctrl, &ctrl);
1211 if (btv->sd_msp34xx) {
1212 u32 in;
1213
1214 /* Note: the inputs tuner/radio/extern/intern are translated
1215 to msp routings. This assumes common behavior for all msp3400
1216 based TV cards. When this assumption fails, then the
1217 specific MSP routing must be added to the card table.
1218 For now this is sufficient. */
1219 switch (input) {
1220 case TVAUDIO_INPUT_RADIO:
1221 in = MSP_INPUT(MSP_IN_SCART2, MSP_IN_TUNER1,
1222 MSP_DSP_IN_SCART, MSP_DSP_IN_SCART);
1223 break;
1224 case TVAUDIO_INPUT_EXTERN:
1225 in = MSP_INPUT(MSP_IN_SCART1, MSP_IN_TUNER1,
1226 MSP_DSP_IN_SCART, MSP_DSP_IN_SCART);
1227 break;
1228 case TVAUDIO_INPUT_INTERN:
1229 /* Yes, this is the same input as for RADIO. I doubt
1230 if this is ever used. The only board with an INTERN
1231 input is the BTTV_BOARD_AVERMEDIA98. I wonder how
1232 that was tested. My guess is that the whole INTERN
1233 input does not work. */
1234 in = MSP_INPUT(MSP_IN_SCART2, MSP_IN_TUNER1,
1235 MSP_DSP_IN_SCART, MSP_DSP_IN_SCART);
1236 break;
1237 case TVAUDIO_INPUT_TUNER:
1238 default:
1239 /* This is the only card that uses TUNER2, and afaik,
1240 is the only difference between the VOODOOTV_FM
1241 and VOODOOTV_200 */
1242 if (btv->c.type == BTTV_BOARD_VOODOOTV_200)
1243 in = MSP_INPUT(MSP_IN_SCART1, MSP_IN_TUNER2, \
1244 MSP_DSP_IN_TUNER, MSP_DSP_IN_TUNER);
1245 else
1246 in = MSP_INPUT_DEFAULT;
1247 break;
1248 }
1249 v4l2_subdev_call(btv->sd_msp34xx, audio, s_routing,
1250 in, MSP_OUTPUT_DEFAULT, 0);
1251 }
1252 if (btv->sd_tvaudio) {
1253 v4l2_subdev_call(btv->sd_tvaudio, audio, s_routing,
1254 input, 0, 0);
1255 }
1256 return 0;
1257 }
1258
1259 static inline int
1260 audio_mute(struct bttv *btv, int mute)
1261 {
1262 return audio_mux(btv, btv->audio, mute);
1263 }
1264
1265 static inline int
1266 audio_input(struct bttv *btv, int input)
1267 {
1268 return audio_mux(btv, input, btv->mute);
1269 }
1270
1271 static void
1272 bttv_crop_calc_limits(struct bttv_crop *c)
1273 {
1274 /* Scale factor min. 1:1, max. 16:1. Min. image size
1275 48 x 32. Scaled width must be a multiple of 4. */
1276
1277 if (1) {
1278 /* For bug compatibility with VIDIOCGCAP and image
1279 size checks in earlier driver versions. */
1280 c->min_scaled_width = 48;
1281 c->min_scaled_height = 32;
1282 } else {
1283 c->min_scaled_width =
1284 (max(48, c->rect.width >> 4) + 3) & ~3;
1285 c->min_scaled_height =
1286 max(32, c->rect.height >> 4);
1287 }
1288
1289 c->max_scaled_width = c->rect.width & ~3;
1290 c->max_scaled_height = c->rect.height;
1291 }
1292
1293 static void
1294 bttv_crop_reset(struct bttv_crop *c, unsigned int norm)
1295 {
1296 c->rect = bttv_tvnorms[norm].cropcap.defrect;
1297 bttv_crop_calc_limits(c);
1298 }
1299
1300 /* Call with btv->lock down. */
1301 static int
1302 set_tvnorm(struct bttv *btv, unsigned int norm)
1303 {
1304 const struct bttv_tvnorm *tvnorm;
1305 v4l2_std_id id;
1306
1307 BUG_ON(norm >= BTTV_TVNORMS);
1308 BUG_ON(btv->tvnorm >= BTTV_TVNORMS);
1309
1310 tvnorm = &bttv_tvnorms[norm];
1311
1312 if (memcmp(&bttv_tvnorms[btv->tvnorm].cropcap, &tvnorm->cropcap,
1313 sizeof (tvnorm->cropcap))) {
1314 bttv_crop_reset(&btv->crop[0], norm);
1315 btv->crop[1] = btv->crop[0]; /* current = default */
1316
1317 if (0 == (btv->resources & VIDEO_RESOURCES)) {
1318 btv->crop_start = tvnorm->cropcap.bounds.top
1319 + tvnorm->cropcap.bounds.height;
1320 }
1321 }
1322
1323 btv->tvnorm = norm;
1324
1325 btwrite(tvnorm->adelay, BT848_ADELAY);
1326 btwrite(tvnorm->bdelay, BT848_BDELAY);
1327 btaor(tvnorm->iform,~(BT848_IFORM_NORM|BT848_IFORM_XTBOTH),
1328 BT848_IFORM);
1329 btwrite(tvnorm->vbipack, BT848_VBI_PACK_SIZE);
1330 btwrite(1, BT848_VBI_PACK_DEL);
1331 bt848A_set_timing(btv);
1332
1333 switch (btv->c.type) {
1334 case BTTV_BOARD_VOODOOTV_FM:
1335 case BTTV_BOARD_VOODOOTV_200:
1336 bttv_tda9880_setnorm(btv, gpio_read());
1337 break;
1338 }
1339 id = tvnorm->v4l2_id;
1340 bttv_call_all(btv, core, s_std, id);
1341
1342 return 0;
1343 }
1344
1345 /* Call with btv->lock down. */
1346 static void
1347 set_input(struct bttv *btv, unsigned int input, unsigned int norm)
1348 {
1349 unsigned long flags;
1350
1351 btv->input = input;
1352 if (irq_iswitch) {
1353 spin_lock_irqsave(&btv->s_lock,flags);
1354 if (btv->curr.frame_irq) {
1355 /* active capture -> delayed input switch */
1356 btv->new_input = input;
1357 } else {
1358 video_mux(btv,input);
1359 }
1360 spin_unlock_irqrestore(&btv->s_lock,flags);
1361 } else {
1362 video_mux(btv,input);
1363 }
1364 audio_input(btv, (btv->tuner_type != TUNER_ABSENT && input == 0) ?
1365 TVAUDIO_INPUT_TUNER : TVAUDIO_INPUT_EXTERN);
1366 set_tvnorm(btv, norm);
1367 }
1368
1369 static void init_irqreg(struct bttv *btv)
1370 {
1371 /* clear status */
1372 btwrite(0xfffffUL, BT848_INT_STAT);
1373
1374 if (bttv_tvcards[btv->c.type].no_video) {
1375 /* i2c only */
1376 btwrite(BT848_INT_I2CDONE,
1377 BT848_INT_MASK);
1378 } else {
1379 /* full video */
1380 btwrite((btv->triton1) |
1381 (btv->gpioirq ? BT848_INT_GPINT : 0) |
1382 BT848_INT_SCERR |
1383 (fdsr ? BT848_INT_FDSR : 0) |
1384 BT848_INT_RISCI | BT848_INT_OCERR |
1385 BT848_INT_FMTCHG|BT848_INT_HLOCK|
1386 BT848_INT_I2CDONE,
1387 BT848_INT_MASK);
1388 }
1389 }
1390
1391 static void init_bt848(struct bttv *btv)
1392 {
1393 int val;
1394
1395 if (bttv_tvcards[btv->c.type].no_video) {
1396 /* very basic init only */
1397 init_irqreg(btv);
1398 return;
1399 }
1400
1401 btwrite(0x00, BT848_CAP_CTL);
1402 btwrite(BT848_COLOR_CTL_GAMMA, BT848_COLOR_CTL);
1403 btwrite(BT848_IFORM_XTAUTO | BT848_IFORM_AUTO, BT848_IFORM);
1404
1405 /* set planar and packed mode trigger points and */
1406 /* set rising edge of inverted GPINTR pin as irq trigger */
1407 btwrite(BT848_GPIO_DMA_CTL_PKTP_32|
1408 BT848_GPIO_DMA_CTL_PLTP1_16|
1409 BT848_GPIO_DMA_CTL_PLTP23_16|
1410 BT848_GPIO_DMA_CTL_GPINTC|
1411 BT848_GPIO_DMA_CTL_GPINTI,
1412 BT848_GPIO_DMA_CTL);
1413
1414 val = btv->opt_chroma_agc ? BT848_SCLOOP_CAGC : 0;
1415 btwrite(val, BT848_E_SCLOOP);
1416 btwrite(val, BT848_O_SCLOOP);
1417
1418 btwrite(0x20, BT848_E_VSCALE_HI);
1419 btwrite(0x20, BT848_O_VSCALE_HI);
1420 btwrite(BT848_ADC_RESERVED | (btv->opt_adc_crush ? BT848_ADC_CRUSH : 0),
1421 BT848_ADC);
1422
1423 btwrite(whitecrush_upper, BT848_WC_UP);
1424 btwrite(whitecrush_lower, BT848_WC_DOWN);
1425
1426 if (btv->opt_lumafilter) {
1427 btwrite(0, BT848_E_CONTROL);
1428 btwrite(0, BT848_O_CONTROL);
1429 } else {
1430 btwrite(BT848_CONTROL_LDEC, BT848_E_CONTROL);
1431 btwrite(BT848_CONTROL_LDEC, BT848_O_CONTROL);
1432 }
1433
1434 bt848_bright(btv, btv->bright);
1435 bt848_hue(btv, btv->hue);
1436 bt848_contrast(btv, btv->contrast);
1437 bt848_sat(btv, btv->saturation);
1438
1439 /* interrupt */
1440 init_irqreg(btv);
1441 }
1442
1443 static void bttv_reinit_bt848(struct bttv *btv)
1444 {
1445 unsigned long flags;
1446
1447 if (bttv_verbose)
1448 pr_info("%d: reset, reinitialize\n", btv->c.nr);
1449 spin_lock_irqsave(&btv->s_lock,flags);
1450 btv->errors=0;
1451 bttv_set_dma(btv,0);
1452 spin_unlock_irqrestore(&btv->s_lock,flags);
1453
1454 init_bt848(btv);
1455 btv->pll.pll_current = -1;
1456 set_input(btv, btv->input, btv->tvnorm);
1457 }
1458
1459 static int bttv_g_ctrl(struct file *file, void *priv,
1460 struct v4l2_control *c)
1461 {
1462 struct bttv_fh *fh = priv;
1463 struct bttv *btv = fh->btv;
1464
1465 switch (c->id) {
1466 case V4L2_CID_BRIGHTNESS:
1467 c->value = btv->bright;
1468 break;
1469 case V4L2_CID_HUE:
1470 c->value = btv->hue;
1471 break;
1472 case V4L2_CID_CONTRAST:
1473 c->value = btv->contrast;
1474 break;
1475 case V4L2_CID_SATURATION:
1476 c->value = btv->saturation;
1477 break;
1478
1479 case V4L2_CID_AUDIO_MUTE:
1480 case V4L2_CID_AUDIO_VOLUME:
1481 case V4L2_CID_AUDIO_BALANCE:
1482 case V4L2_CID_AUDIO_BASS:
1483 case V4L2_CID_AUDIO_TREBLE:
1484 bttv_call_all(btv, core, g_ctrl, c);
1485 break;
1486
1487 case V4L2_CID_PRIVATE_CHROMA_AGC:
1488 c->value = btv->opt_chroma_agc;
1489 break;
1490 case V4L2_CID_PRIVATE_COMBFILTER:
1491 c->value = btv->opt_combfilter;
1492 break;
1493 case V4L2_CID_PRIVATE_LUMAFILTER:
1494 c->value = btv->opt_lumafilter;
1495 break;
1496 case V4L2_CID_PRIVATE_AUTOMUTE:
1497 c->value = btv->opt_automute;
1498 break;
1499 case V4L2_CID_PRIVATE_AGC_CRUSH:
1500 c->value = btv->opt_adc_crush;
1501 break;
1502 case V4L2_CID_PRIVATE_VCR_HACK:
1503 c->value = btv->opt_vcr_hack;
1504 break;
1505 case V4L2_CID_PRIVATE_WHITECRUSH_UPPER:
1506 c->value = btv->opt_whitecrush_upper;
1507 break;
1508 case V4L2_CID_PRIVATE_WHITECRUSH_LOWER:
1509 c->value = btv->opt_whitecrush_lower;
1510 break;
1511 case V4L2_CID_PRIVATE_UV_RATIO:
1512 c->value = btv->opt_uv_ratio;
1513 break;
1514 case V4L2_CID_PRIVATE_FULL_LUMA_RANGE:
1515 c->value = btv->opt_full_luma_range;
1516 break;
1517 case V4L2_CID_PRIVATE_CORING:
1518 c->value = btv->opt_coring;
1519 break;
1520 default:
1521 return -EINVAL;
1522 }
1523 return 0;
1524 }
1525
1526 static int bttv_s_ctrl(struct file *file, void *f,
1527 struct v4l2_control *c)
1528 {
1529 int err;
1530 int val;
1531 struct bttv_fh *fh = f;
1532 struct bttv *btv = fh->btv;
1533
1534 err = v4l2_prio_check(&btv->prio, fh->prio);
1535 if (0 != err)
1536 return err;
1537
1538 switch (c->id) {
1539 case V4L2_CID_BRIGHTNESS:
1540 bt848_bright(btv, c->value);
1541 break;
1542 case V4L2_CID_HUE:
1543 bt848_hue(btv, c->value);
1544 break;
1545 case V4L2_CID_CONTRAST:
1546 bt848_contrast(btv, c->value);
1547 break;
1548 case V4L2_CID_SATURATION:
1549 bt848_sat(btv, c->value);
1550 break;
1551 case V4L2_CID_AUDIO_MUTE:
1552 audio_mute(btv, c->value);
1553 /* fall through */
1554 case V4L2_CID_AUDIO_VOLUME:
1555 if (btv->volume_gpio)
1556 btv->volume_gpio(btv, c->value);
1557
1558 bttv_call_all(btv, core, s_ctrl, c);
1559 break;
1560 case V4L2_CID_AUDIO_BALANCE:
1561 case V4L2_CID_AUDIO_BASS:
1562 case V4L2_CID_AUDIO_TREBLE:
1563 bttv_call_all(btv, core, s_ctrl, c);
1564 break;
1565
1566 case V4L2_CID_PRIVATE_CHROMA_AGC:
1567 btv->opt_chroma_agc = c->value;
1568 val = btv->opt_chroma_agc ? BT848_SCLOOP_CAGC : 0;
1569 btwrite(val, BT848_E_SCLOOP);
1570 btwrite(val, BT848_O_SCLOOP);
1571 break;
1572 case V4L2_CID_PRIVATE_COMBFILTER:
1573 btv->opt_combfilter = c->value;
1574 break;
1575 case V4L2_CID_PRIVATE_LUMAFILTER:
1576 btv->opt_lumafilter = c->value;
1577 if (btv->opt_lumafilter) {
1578 btand(~BT848_CONTROL_LDEC, BT848_E_CONTROL);
1579 btand(~BT848_CONTROL_LDEC, BT848_O_CONTROL);
1580 } else {
1581 btor(BT848_CONTROL_LDEC, BT848_E_CONTROL);
1582 btor(BT848_CONTROL_LDEC, BT848_O_CONTROL);
1583 }
1584 break;
1585 case V4L2_CID_PRIVATE_AUTOMUTE:
1586 btv->opt_automute = c->value;
1587 break;
1588 case V4L2_CID_PRIVATE_AGC_CRUSH:
1589 btv->opt_adc_crush = c->value;
1590 btwrite(BT848_ADC_RESERVED |
1591 (btv->opt_adc_crush ? BT848_ADC_CRUSH : 0),
1592 BT848_ADC);
1593 break;
1594 case V4L2_CID_PRIVATE_VCR_HACK:
1595 btv->opt_vcr_hack = c->value;
1596 break;
1597 case V4L2_CID_PRIVATE_WHITECRUSH_UPPER:
1598 btv->opt_whitecrush_upper = c->value;
1599 btwrite(c->value, BT848_WC_UP);
1600 break;
1601 case V4L2_CID_PRIVATE_WHITECRUSH_LOWER:
1602 btv->opt_whitecrush_lower = c->value;
1603 btwrite(c->value, BT848_WC_DOWN);
1604 break;
1605 case V4L2_CID_PRIVATE_UV_RATIO:
1606 btv->opt_uv_ratio = c->value;
1607 bt848_sat(btv, btv->saturation);
1608 break;
1609 case V4L2_CID_PRIVATE_FULL_LUMA_RANGE:
1610 btv->opt_full_luma_range = c->value;
1611 btaor((c->value<<7), ~BT848_OFORM_RANGE, BT848_OFORM);
1612 break;
1613 case V4L2_CID_PRIVATE_CORING:
1614 btv->opt_coring = c->value;
1615 btaor((c->value<<5), ~BT848_OFORM_CORE32, BT848_OFORM);
1616 break;
1617 default:
1618 return -EINVAL;
1619 }
1620 return 0;
1621 }
1622
1623 /* ----------------------------------------------------------------------- */
1624
1625 void bttv_gpio_tracking(struct bttv *btv, char *comment)
1626 {
1627 unsigned int outbits, data;
1628 outbits = btread(BT848_GPIO_OUT_EN);
1629 data = btread(BT848_GPIO_DATA);
1630 pr_debug("%d: gpio: en=%08x, out=%08x in=%08x [%s]\n",
1631 btv->c.nr, outbits, data & outbits, data & ~outbits, comment);
1632 }
1633
1634 static void bttv_field_count(struct bttv *btv)
1635 {
1636 int need_count = 0;
1637
1638 if (btv->users)
1639 need_count++;
1640
1641 if (need_count) {
1642 /* start field counter */
1643 btor(BT848_INT_VSYNC,BT848_INT_MASK);
1644 } else {
1645 /* stop field counter */
1646 btand(~BT848_INT_VSYNC,BT848_INT_MASK);
1647 btv->field_count = 0;
1648 }
1649 }
1650
1651 static const struct bttv_format*
1652 format_by_fourcc(int fourcc)
1653 {
1654 unsigned int i;
1655
1656 for (i = 0; i < FORMATS; i++) {
1657 if (-1 == formats[i].fourcc)
1658 continue;
1659 if (formats[i].fourcc == fourcc)
1660 return formats+i;
1661 }
1662 return NULL;
1663 }
1664
1665 /* ----------------------------------------------------------------------- */
1666 /* misc helpers */
1667
1668 static int
1669 bttv_switch_overlay(struct bttv *btv, struct bttv_fh *fh,
1670 struct bttv_buffer *new)
1671 {
1672 struct bttv_buffer *old;
1673 unsigned long flags;
1674 int retval = 0;
1675
1676 dprintk("switch_overlay: enter [new=%p]\n", new);
1677 if (new)
1678 new->vb.state = VIDEOBUF_DONE;
1679 spin_lock_irqsave(&btv->s_lock,flags);
1680 old = btv->screen;
1681 btv->screen = new;
1682 btv->loop_irq |= 1;
1683 bttv_set_dma(btv, 0x03);
1684 spin_unlock_irqrestore(&btv->s_lock,flags);
1685 if (NULL != old) {
1686 dprintk("switch_overlay: old=%p state is %d\n",
1687 old, old->vb.state);
1688 bttv_dma_free(&fh->cap,btv, old);
1689 kfree(old);
1690 }
1691 if (NULL == new)
1692 free_btres_lock(btv,fh,RESOURCE_OVERLAY);
1693 dprintk("switch_overlay: done\n");
1694 return retval;
1695 }
1696
1697 /* ----------------------------------------------------------------------- */
1698 /* video4linux (1) interface */
1699
1700 static int bttv_prepare_buffer(struct videobuf_queue *q,struct bttv *btv,
1701 struct bttv_buffer *buf,
1702 const struct bttv_format *fmt,
1703 unsigned int width, unsigned int height,
1704 enum v4l2_field field)
1705 {
1706 struct bttv_fh *fh = q->priv_data;
1707 int redo_dma_risc = 0;
1708 struct bttv_crop c;
1709 int norm;
1710 int rc;
1711
1712 /* check settings */
1713 if (NULL == fmt)
1714 return -EINVAL;
1715 if (fmt->btformat == BT848_COLOR_FMT_RAW) {
1716 width = RAW_BPL;
1717 height = RAW_LINES*2;
1718 if (width*height > buf->vb.bsize)
1719 return -EINVAL;
1720 buf->vb.size = buf->vb.bsize;
1721
1722 /* Make sure tvnorm and vbi_end remain consistent
1723 until we're done. */
1724
1725 norm = btv->tvnorm;
1726
1727 /* In this mode capturing always starts at defrect.top
1728 (default VDELAY), ignoring cropping parameters. */
1729 if (btv->vbi_end > bttv_tvnorms[norm].cropcap.defrect.top) {
1730 return -EINVAL;
1731 }
1732
1733 c.rect = bttv_tvnorms[norm].cropcap.defrect;
1734 } else {
1735 norm = btv->tvnorm;
1736 c = btv->crop[!!fh->do_crop];
1737
1738 if (width < c.min_scaled_width ||
1739 width > c.max_scaled_width ||
1740 height < c.min_scaled_height)
1741 return -EINVAL;
1742
1743 switch (field) {
1744 case V4L2_FIELD_TOP:
1745 case V4L2_FIELD_BOTTOM:
1746 case V4L2_FIELD_ALTERNATE:
1747 /* btv->crop counts frame lines. Max. scale
1748 factor is 16:1 for frames, 8:1 for fields. */
1749 if (height * 2 > c.max_scaled_height)
1750 return -EINVAL;
1751 break;
1752
1753 default:
1754 if (height > c.max_scaled_height)
1755 return -EINVAL;
1756 break;
1757 }
1758
1759 buf->vb.size = (width * height * fmt->depth) >> 3;
1760 if (0 != buf->vb.baddr && buf->vb.bsize < buf->vb.size)
1761 return -EINVAL;
1762 }
1763
1764 /* alloc + fill struct bttv_buffer (if changed) */
1765 if (buf->vb.width != width || buf->vb.height != height ||
1766 buf->vb.field != field ||
1767 buf->tvnorm != norm || buf->fmt != fmt ||
1768 buf->crop.top != c.rect.top ||
1769 buf->crop.left != c.rect.left ||
1770 buf->crop.width != c.rect.width ||
1771 buf->crop.height != c.rect.height) {
1772 buf->vb.width = width;
1773 buf->vb.height = height;
1774 buf->vb.field = field;
1775 buf->tvnorm = norm;
1776 buf->fmt = fmt;
1777 buf->crop = c.rect;
1778 redo_dma_risc = 1;
1779 }
1780
1781 /* alloc risc memory */
1782 if (VIDEOBUF_NEEDS_INIT == buf->vb.state) {
1783 redo_dma_risc = 1;
1784 if (0 != (rc = videobuf_iolock(q,&buf->vb,&btv->fbuf)))
1785 goto fail;
1786 }
1787
1788 if (redo_dma_risc)
1789 if (0 != (rc = bttv_buffer_risc(btv,buf)))
1790 goto fail;
1791
1792 buf->vb.state = VIDEOBUF_PREPARED;
1793 return 0;
1794
1795 fail:
1796 bttv_dma_free(q,btv,buf);
1797 return rc;
1798 }
1799
1800 static int
1801 buffer_setup(struct videobuf_queue *q, unsigned int *count, unsigned int *size)
1802 {
1803 struct bttv_fh *fh = q->priv_data;
1804
1805 *size = fh->fmt->depth*fh->width*fh->height >> 3;
1806 if (0 == *count)
1807 *count = gbuffers;
1808 if (*size * *count > gbuffers * gbufsize)
1809 *count = (gbuffers * gbufsize) / *size;
1810 return 0;
1811 }
1812
1813 static int
1814 buffer_prepare(struct videobuf_queue *q, struct videobuf_buffer *vb,
1815 enum v4l2_field field)
1816 {
1817 struct bttv_buffer *buf = container_of(vb,struct bttv_buffer,vb);
1818 struct bttv_fh *fh = q->priv_data;
1819
1820 return bttv_prepare_buffer(q,fh->btv, buf, fh->fmt,
1821 fh->width, fh->height, field);
1822 }
1823
1824 static void
1825 buffer_queue(struct videobuf_queue *q, struct videobuf_buffer *vb)
1826 {
1827 struct bttv_buffer *buf = container_of(vb,struct bttv_buffer,vb);
1828 struct bttv_fh *fh = q->priv_data;
1829 struct bttv *btv = fh->btv;
1830
1831 buf->vb.state = VIDEOBUF_QUEUED;
1832 list_add_tail(&buf->vb.queue,&btv->capture);
1833 if (!btv->curr.frame_irq) {
1834 btv->loop_irq |= 1;
1835 bttv_set_dma(btv, 0x03);
1836 }
1837 }
1838
1839 static void buffer_release(struct videobuf_queue *q, struct videobuf_buffer *vb)
1840 {
1841 struct bttv_buffer *buf = container_of(vb,struct bttv_buffer,vb);
1842 struct bttv_fh *fh = q->priv_data;
1843
1844 bttv_dma_free(q,fh->btv,buf);
1845 }
1846
1847 static struct videobuf_queue_ops bttv_video_qops = {
1848 .buf_setup = buffer_setup,
1849 .buf_prepare = buffer_prepare,
1850 .buf_queue = buffer_queue,
1851 .buf_release = buffer_release,
1852 };
1853
1854 static int bttv_s_std(struct file *file, void *priv, v4l2_std_id *id)
1855 {
1856 struct bttv_fh *fh = priv;
1857 struct bttv *btv = fh->btv;
1858 unsigned int i;
1859 int err;
1860
1861 err = v4l2_prio_check(&btv->prio, fh->prio);
1862 if (err)
1863 goto err;
1864
1865 for (i = 0; i < BTTV_TVNORMS; i++)
1866 if (*id & bttv_tvnorms[i].v4l2_id)
1867 break;
1868 if (i == BTTV_TVNORMS) {
1869 err = -EINVAL;
1870 goto err;
1871 }
1872
1873 set_tvnorm(btv, i);
1874
1875 err:
1876
1877 return err;
1878 }
1879
1880 static int bttv_querystd(struct file *file, void *f, v4l2_std_id *id)
1881 {
1882 struct bttv_fh *fh = f;
1883 struct bttv *btv = fh->btv;
1884
1885 if (btread(BT848_DSTATUS) & BT848_DSTATUS_NUML)
1886 *id = V4L2_STD_625_50;
1887 else
1888 *id = V4L2_STD_525_60;
1889 return 0;
1890 }
1891
1892 static int bttv_enum_input(struct file *file, void *priv,
1893 struct v4l2_input *i)
1894 {
1895 struct bttv_fh *fh = priv;
1896 struct bttv *btv = fh->btv;
1897 int rc = 0;
1898
1899 if (i->index >= bttv_tvcards[btv->c.type].video_inputs) {
1900 rc = -EINVAL;
1901 goto err;
1902 }
1903
1904 i->type = V4L2_INPUT_TYPE_CAMERA;
1905 i->audioset = 1;
1906
1907 if (btv->tuner_type != TUNER_ABSENT && i->index == 0) {
1908 sprintf(i->name, "Television");
1909 i->type = V4L2_INPUT_TYPE_TUNER;
1910 i->tuner = 0;
1911 } else if (i->index == btv->svhs) {
1912 sprintf(i->name, "S-Video");
1913 } else {
1914 sprintf(i->name, "Composite%d", i->index);
1915 }
1916
1917 if (i->index == btv->input) {
1918 __u32 dstatus = btread(BT848_DSTATUS);
1919 if (0 == (dstatus & BT848_DSTATUS_PRES))
1920 i->status |= V4L2_IN_ST_NO_SIGNAL;
1921 if (0 == (dstatus & BT848_DSTATUS_HLOC))
1922 i->status |= V4L2_IN_ST_NO_H_LOCK;
1923 }
1924
1925 i->std = BTTV_NORMS;
1926
1927 err:
1928
1929 return rc;
1930 }
1931
1932 static int bttv_g_input(struct file *file, void *priv, unsigned int *i)
1933 {
1934 struct bttv_fh *fh = priv;
1935 struct bttv *btv = fh->btv;
1936
1937 *i = btv->input;
1938
1939 return 0;
1940 }
1941
1942 static int bttv_s_input(struct file *file, void *priv, unsigned int i)
1943 {
1944 struct bttv_fh *fh = priv;
1945 struct bttv *btv = fh->btv;
1946
1947 int err;
1948
1949 err = v4l2_prio_check(&btv->prio, fh->prio);
1950 if (unlikely(err))
1951 goto err;
1952
1953 if (i > bttv_tvcards[btv->c.type].video_inputs) {
1954 err = -EINVAL;
1955 goto err;
1956 }
1957
1958 set_input(btv, i, btv->tvnorm);
1959
1960 err:
1961 return 0;
1962 }
1963
1964 static int bttv_s_tuner(struct file *file, void *priv,
1965 struct v4l2_tuner *t)
1966 {
1967 struct bttv_fh *fh = priv;
1968 struct bttv *btv = fh->btv;
1969 int err;
1970
1971 if (unlikely(0 != t->index))
1972 return -EINVAL;
1973
1974 if (unlikely(btv->tuner_type == TUNER_ABSENT)) {
1975 err = -EINVAL;
1976 goto err;
1977 }
1978
1979 err = v4l2_prio_check(&btv->prio, fh->prio);
1980 if (unlikely(err))
1981 goto err;
1982
1983 bttv_call_all(btv, tuner, s_tuner, t);
1984
1985 if (btv->audio_mode_gpio)
1986 btv->audio_mode_gpio(btv, t, 1);
1987
1988 err:
1989
1990 return 0;
1991 }
1992
1993 static int bttv_g_frequency(struct file *file, void *priv,
1994 struct v4l2_frequency *f)
1995 {
1996 struct bttv_fh *fh = priv;
1997 struct bttv *btv = fh->btv;
1998
1999 f->type = btv->radio_user ? V4L2_TUNER_RADIO : V4L2_TUNER_ANALOG_TV;
2000 f->frequency = btv->freq;
2001
2002 return 0;
2003 }
2004
2005 static int bttv_s_frequency(struct file *file, void *priv,
2006 struct v4l2_frequency *f)
2007 {
2008 struct bttv_fh *fh = priv;
2009 struct bttv *btv = fh->btv;
2010 int err;
2011
2012 if (unlikely(f->tuner != 0))
2013 return -EINVAL;
2014
2015 err = v4l2_prio_check(&btv->prio, fh->prio);
2016 if (unlikely(err))
2017 goto err;
2018
2019 if (unlikely(f->type != (btv->radio_user
2020 ? V4L2_TUNER_RADIO : V4L2_TUNER_ANALOG_TV))) {
2021 err = -EINVAL;
2022 goto err;
2023 }
2024 btv->freq = f->frequency;
2025 bttv_call_all(btv, tuner, s_frequency, f);
2026 if (btv->has_matchbox && btv->radio_user)
2027 tea5757_set_freq(btv, btv->freq);
2028 err:
2029
2030 return 0;
2031 }
2032
2033 static int bttv_log_status(struct file *file, void *f)
2034 {
2035 struct bttv_fh *fh = f;
2036 struct bttv *btv = fh->btv;
2037
2038 pr_info("%d: ======== START STATUS CARD #%d ========\n",
2039 btv->c.nr, btv->c.nr);
2040 bttv_call_all(btv, core, log_status);
2041 pr_info("%d: ======== END STATUS CARD #%d ========\n",
2042 btv->c.nr, btv->c.nr);
2043 return 0;
2044 }
2045
2046 #ifdef CONFIG_VIDEO_ADV_DEBUG
2047 static int bttv_g_register(struct file *file, void *f,
2048 struct v4l2_dbg_register *reg)
2049 {
2050 struct bttv_fh *fh = f;
2051 struct bttv *btv = fh->btv;
2052
2053 if (!capable(CAP_SYS_ADMIN))
2054 return -EPERM;
2055
2056 if (!v4l2_chip_match_host(&reg->match))
2057 return -EINVAL;
2058
2059 /* bt848 has a 12-bit register space */
2060 reg->reg &= 0xfff;
2061 reg->val = btread(reg->reg);
2062 reg->size = 1;
2063
2064 return 0;
2065 }
2066
2067 static int bttv_s_register(struct file *file, void *f,
2068 struct v4l2_dbg_register *reg)
2069 {
2070 struct bttv_fh *fh = f;
2071 struct bttv *btv = fh->btv;
2072
2073 if (!capable(CAP_SYS_ADMIN))
2074 return -EPERM;
2075
2076 if (!v4l2_chip_match_host(&reg->match))
2077 return -EINVAL;
2078
2079 /* bt848 has a 12-bit register space */
2080 reg->reg &= 0xfff;
2081 btwrite(reg->val, reg->reg);
2082
2083 return 0;
2084 }
2085 #endif
2086
2087 /* Given cropping boundaries b and the scaled width and height of a
2088 single field or frame, which must not exceed hardware limits, this
2089 function adjusts the cropping parameters c. */
2090 static void
2091 bttv_crop_adjust (struct bttv_crop * c,
2092 const struct v4l2_rect * b,
2093 __s32 width,
2094 __s32 height,
2095 enum v4l2_field field)
2096 {
2097 __s32 frame_height = height << !V4L2_FIELD_HAS_BOTH(field);
2098 __s32 max_left;
2099 __s32 max_top;
2100
2101 if (width < c->min_scaled_width) {
2102 /* Max. hor. scale factor 16:1. */
2103 c->rect.width = width * 16;
2104 } else if (width > c->max_scaled_width) {
2105 /* Min. hor. scale factor 1:1. */
2106 c->rect.width = width;
2107
2108 max_left = b->left + b->width - width;
2109 max_left = min(max_left, (__s32) MAX_HDELAY);
2110 if (c->rect.left > max_left)
2111 c->rect.left = max_left;
2112 }
2113
2114 if (height < c->min_scaled_height) {
2115 /* Max. vert. scale factor 16:1, single fields 8:1. */
2116 c->rect.height = height * 16;
2117 } else if (frame_height > c->max_scaled_height) {
2118 /* Min. vert. scale factor 1:1.
2119 Top and height count field lines times two. */
2120 c->rect.height = (frame_height + 1) & ~1;
2121
2122 max_top = b->top + b->height - c->rect.height;
2123 if (c->rect.top > max_top)
2124 c->rect.top = max_top;
2125 }
2126
2127 bttv_crop_calc_limits(c);
2128 }
2129
2130 /* Returns an error if scaling to a frame or single field with the given
2131 width and height is not possible with the current cropping parameters
2132 and width aligned according to width_mask. If adjust_size is TRUE the
2133 function may adjust the width and/or height instead, rounding width
2134 to (width + width_bias) & width_mask. If adjust_crop is TRUE it may
2135 also adjust the current cropping parameters to get closer to the
2136 desired image size. */
2137 static int
2138 limit_scaled_size_lock (struct bttv_fh * fh,
2139 __s32 * width,
2140 __s32 * height,
2141 enum v4l2_field field,
2142 unsigned int width_mask,
2143 unsigned int width_bias,
2144 int adjust_size,
2145 int adjust_crop)
2146 {
2147 struct bttv *btv = fh->btv;
2148 const struct v4l2_rect *b;
2149 struct bttv_crop *c;
2150 __s32 min_width;
2151 __s32 min_height;
2152 __s32 max_width;
2153 __s32 max_height;
2154 int rc;
2155
2156 BUG_ON((int) width_mask >= 0 ||
2157 width_bias >= (unsigned int) -width_mask);
2158
2159 /* Make sure tvnorm, vbi_end and the current cropping parameters
2160 remain consistent until we're done. */
2161
2162 b = &bttv_tvnorms[btv->tvnorm].cropcap.bounds;
2163
2164 /* Do crop - use current, don't - use default parameters. */
2165 c = &btv->crop[!!fh->do_crop];
2166
2167 if (fh->do_crop
2168 && adjust_size
2169 && adjust_crop
2170 && !locked_btres(btv, VIDEO_RESOURCES)) {
2171 min_width = 48;
2172 min_height = 32;
2173
2174 /* We cannot scale up. When the scaled image is larger
2175 than crop.rect we adjust the crop.rect as required
2176 by the V4L2 spec, hence cropcap.bounds are our limit. */
2177 max_width = min(b->width, (__s32) MAX_HACTIVE);
2178 max_height = b->height;
2179
2180 /* We cannot capture the same line as video and VBI data.
2181 Note btv->vbi_end is really a minimum, see
2182 bttv_vbi_try_fmt(). */
2183 if (btv->vbi_end > b->top) {
2184 max_height -= btv->vbi_end - b->top;
2185 rc = -EBUSY;
2186 if (min_height > max_height)
2187 goto fail;
2188 }
2189 } else {
2190 rc = -EBUSY;
2191 if (btv->vbi_end > c->rect.top)
2192 goto fail;
2193
2194 min_width = c->min_scaled_width;
2195 min_height = c->min_scaled_height;
2196 max_width = c->max_scaled_width;
2197 max_height = c->max_scaled_height;
2198
2199 adjust_crop = 0;
2200 }
2201
2202 min_width = (min_width - width_mask - 1) & width_mask;
2203 max_width = max_width & width_mask;
2204
2205 /* Max. scale factor is 16:1 for frames, 8:1 for fields. */
2206 min_height = min_height;
2207 /* Min. scale factor is 1:1. */
2208 max_height >>= !V4L2_FIELD_HAS_BOTH(field);
2209
2210 if (adjust_size) {
2211 *width = clamp(*width, min_width, max_width);
2212 *height = clamp(*height, min_height, max_height);
2213
2214 /* Round after clamping to avoid overflow. */
2215 *width = (*width + width_bias) & width_mask;
2216
2217 if (adjust_crop) {
2218 bttv_crop_adjust(c, b, *width, *height, field);
2219
2220 if (btv->vbi_end > c->rect.top) {
2221 /* Move the crop window out of the way. */
2222 c->rect.top = btv->vbi_end;
2223 }
2224 }
2225 } else {
2226 rc = -EINVAL;
2227 if (*width < min_width ||
2228 *height < min_height ||
2229 *width > max_width ||
2230 *height > max_height ||
2231 0 != (*width & ~width_mask))
2232 goto fail;
2233 }
2234
2235 rc = 0; /* success */
2236
2237 fail:
2238
2239 return rc;
2240 }
2241
2242 /* Returns an error if the given overlay window dimensions are not
2243 possible with the current cropping parameters. If adjust_size is
2244 TRUE the function may adjust the window width and/or height
2245 instead, however it always rounds the horizontal position and
2246 width as btcx_align() does. If adjust_crop is TRUE the function
2247 may also adjust the current cropping parameters to get closer
2248 to the desired window size. */
2249 static int
2250 verify_window_lock (struct bttv_fh * fh,
2251 struct v4l2_window * win,
2252 int adjust_size,
2253 int adjust_crop)
2254 {
2255 enum v4l2_field field;
2256 unsigned int width_mask;
2257 int rc;
2258
2259 if (win->w.width < 48 || win->w.height < 32)
2260 return -EINVAL;
2261 if (win->clipcount > 2048)
2262 return -EINVAL;
2263
2264 field = win->field;
2265
2266 if (V4L2_FIELD_ANY == field) {
2267 __s32 height2;
2268
2269 height2 = fh->btv->crop[!!fh->do_crop].rect.height >> 1;
2270 field = (win->w.height > height2)
2271 ? V4L2_FIELD_INTERLACED
2272 : V4L2_FIELD_TOP;
2273 }
2274 switch (field) {
2275 case V4L2_FIELD_TOP:
2276 case V4L2_FIELD_BOTTOM:
2277 case V4L2_FIELD_INTERLACED:
2278 break;
2279 default:
2280 return -EINVAL;
2281 }
2282
2283 /* 4-byte alignment. */
2284 if (NULL == fh->ovfmt)
2285 return -EINVAL;
2286 width_mask = ~0;
2287 switch (fh->ovfmt->depth) {
2288 case 8:
2289 case 24:
2290 width_mask = ~3;
2291 break;
2292 case 16:
2293 width_mask = ~1;
2294 break;
2295 case 32:
2296 break;
2297 default:
2298 BUG();
2299 }
2300
2301 win->w.width -= win->w.left & ~width_mask;
2302 win->w.left = (win->w.left - width_mask - 1) & width_mask;
2303
2304 rc = limit_scaled_size_lock(fh, &win->w.width, &win->w.height,
2305 field, width_mask,
2306 /* width_bias: round down */ 0,
2307 adjust_size, adjust_crop);
2308 if (0 != rc)
2309 return rc;
2310
2311 win->field = field;
2312 return 0;
2313 }
2314
2315 static int setup_window_lock(struct bttv_fh *fh, struct bttv *btv,
2316 struct v4l2_window *win, int fixup)
2317 {
2318 struct v4l2_clip *clips = NULL;
2319 int n,size,retval = 0;
2320
2321 if (NULL == fh->ovfmt)
2322 return -EINVAL;
2323 if (!(fh->ovfmt->flags & FORMAT_FLAGS_PACKED))
2324 return -EINVAL;
2325 retval = verify_window_lock(fh, win,
2326 /* adjust_size */ fixup,
2327 /* adjust_crop */ fixup);
2328 if (0 != retval)
2329 return retval;
2330
2331 /* copy clips -- luckily v4l1 + v4l2 are binary
2332 compatible here ...*/
2333 n = win->clipcount;
2334 size = sizeof(*clips)*(n+4);
2335 clips = kmalloc(size,GFP_KERNEL);
2336 if (NULL == clips)
2337 return -ENOMEM;
2338 if (n > 0) {
2339 if (copy_from_user(clips,win->clips,sizeof(struct v4l2_clip)*n)) {
2340 kfree(clips);
2341 return -EFAULT;
2342 }
2343 }
2344
2345 /* clip against screen */
2346 if (NULL != btv->fbuf.base)
2347 n = btcx_screen_clips(btv->fbuf.fmt.width, btv->fbuf.fmt.height,
2348 &win->w, clips, n);
2349 btcx_sort_clips(clips,n);
2350
2351 /* 4-byte alignments */
2352 switch (fh->ovfmt->depth) {
2353 case 8:
2354 case 24:
2355 btcx_align(&win->w, clips, n, 3);
2356 break;
2357 case 16:
2358 btcx_align(&win->w, clips, n, 1);
2359 break;
2360 case 32:
2361 /* no alignment fixups needed */
2362 break;
2363 default:
2364 BUG();
2365 }
2366
2367 kfree(fh->ov.clips);
2368 fh->ov.clips = clips;
2369 fh->ov.nclips = n;
2370
2371 fh->ov.w = win->w;
2372 fh->ov.field = win->field;
2373 fh->ov.setup_ok = 1;
2374
2375 btv->init.ov.w.width = win->w.width;
2376 btv->init.ov.w.height = win->w.height;
2377 btv->init.ov.field = win->field;
2378
2379 /* update overlay if needed */
2380 retval = 0;
2381 if (check_btres(fh, RESOURCE_OVERLAY)) {
2382 struct bttv_buffer *new;
2383
2384 new = videobuf_sg_alloc(sizeof(*new));
2385 new->crop = btv->crop[!!fh->do_crop].rect;
2386 bttv_overlay_risc(btv, &fh->ov, fh->ovfmt, new);
2387 retval = bttv_switch_overlay(btv,fh,new);
2388 }
2389 return retval;
2390 }
2391
2392 /* ----------------------------------------------------------------------- */
2393
2394 static struct videobuf_queue* bttv_queue(struct bttv_fh *fh)
2395 {
2396 struct videobuf_queue* q = NULL;
2397
2398 switch (fh->type) {
2399 case V4L2_BUF_TYPE_VIDEO_CAPTURE:
2400 q = &fh->cap;
2401 break;
2402 case V4L2_BUF_TYPE_VBI_CAPTURE:
2403 q = &fh->vbi;
2404 break;
2405 default:
2406 BUG();
2407 }
2408 return q;
2409 }
2410
2411 static int bttv_resource(struct bttv_fh *fh)
2412 {
2413 int res = 0;
2414
2415 switch (fh->type) {
2416 case V4L2_BUF_TYPE_VIDEO_CAPTURE:
2417 res = RESOURCE_VIDEO_STREAM;
2418 break;
2419 case V4L2_BUF_TYPE_VBI_CAPTURE:
2420 res = RESOURCE_VBI;
2421 break;
2422 default:
2423 BUG();
2424 }
2425 return res;
2426 }
2427
2428 static int bttv_switch_type(struct bttv_fh *fh, enum v4l2_buf_type type)
2429 {
2430 struct videobuf_queue *q = bttv_queue(fh);
2431 int res = bttv_resource(fh);
2432
2433 if (check_btres(fh,res))
2434 return -EBUSY;
2435 if (videobuf_queue_is_busy(q))
2436 return -EBUSY;
2437 fh->type = type;
2438 return 0;
2439 }
2440
2441 static void
2442 pix_format_set_size (struct v4l2_pix_format * f,
2443 const struct bttv_format * fmt,
2444 unsigned int width,
2445 unsigned int height)
2446 {
2447 f->width = width;
2448 f->height = height;
2449
2450 if (fmt->flags & FORMAT_FLAGS_PLANAR) {
2451 f->bytesperline = width; /* Y plane */
2452 f->sizeimage = (width * height * fmt->depth) >> 3;
2453 } else {
2454 f->bytesperline = (width * fmt->depth) >> 3;
2455 f->sizeimage = height * f->bytesperline;
2456 }
2457 }
2458
2459 static int bttv_g_fmt_vid_cap(struct file *file, void *priv,
2460 struct v4l2_format *f)
2461 {
2462 struct bttv_fh *fh = priv;
2463
2464 pix_format_set_size(&f->fmt.pix, fh->fmt,
2465 fh->width, fh->height);
2466 f->fmt.pix.field = fh->cap.field;
2467 f->fmt.pix.pixelformat = fh->fmt->fourcc;
2468
2469 return 0;
2470 }
2471
2472 static int bttv_g_fmt_vid_overlay(struct file *file, void *priv,
2473 struct v4l2_format *f)
2474 {
2475 struct bttv_fh *fh = priv;
2476
2477 f->fmt.win.w = fh->ov.w;
2478 f->fmt.win.field = fh->ov.field;
2479
2480 return 0;
2481 }
2482
2483 static int bttv_try_fmt_vid_cap(struct file *file, void *priv,
2484 struct v4l2_format *f)
2485 {
2486 const struct bttv_format *fmt;
2487 struct bttv_fh *fh = priv;
2488 struct bttv *btv = fh->btv;
2489 enum v4l2_field field;
2490 __s32 width, height;
2491 int rc;
2492
2493 fmt = format_by_fourcc(f->fmt.pix.pixelformat);
2494 if (NULL == fmt)
2495 return -EINVAL;
2496
2497 field = f->fmt.pix.field;
2498
2499 if (V4L2_FIELD_ANY == field) {
2500 __s32 height2;
2501
2502 height2 = btv->crop[!!fh->do_crop].rect.height >> 1;
2503 field = (f->fmt.pix.height > height2)
2504 ? V4L2_FIELD_INTERLACED
2505 : V4L2_FIELD_BOTTOM;
2506 }
2507
2508 if (V4L2_FIELD_SEQ_BT == field)
2509 field = V4L2_FIELD_SEQ_TB;
2510
2511 switch (field) {
2512 case V4L2_FIELD_TOP:
2513 case V4L2_FIELD_BOTTOM:
2514 case V4L2_FIELD_ALTERNATE:
2515 case V4L2_FIELD_INTERLACED:
2516 break;
2517 case V4L2_FIELD_SEQ_TB:
2518 if (fmt->flags & FORMAT_FLAGS_PLANAR)
2519 return -EINVAL;
2520 break;
2521 default:
2522 return -EINVAL;
2523 }
2524
2525 width = f->fmt.pix.width;
2526 height = f->fmt.pix.height;
2527
2528 rc = limit_scaled_size_lock(fh, &width, &height, field,
2529 /* width_mask: 4 pixels */ ~3,
2530 /* width_bias: nearest */ 2,
2531 /* adjust_size */ 1,
2532 /* adjust_crop */ 0);
2533 if (0 != rc)
2534 return rc;
2535
2536 /* update data for the application */
2537 f->fmt.pix.field = field;
2538 pix_format_set_size(&f->fmt.pix, fmt, width, height);
2539
2540 return 0;
2541 }
2542
2543 static int bttv_try_fmt_vid_overlay(struct file *file, void *priv,
2544 struct v4l2_format *f)
2545 {
2546 struct bttv_fh *fh = priv;
2547
2548 return verify_window_lock(fh, &f->fmt.win,
2549 /* adjust_size */ 1,
2550 /* adjust_crop */ 0);
2551 }
2552
2553 static int bttv_s_fmt_vid_cap(struct file *file, void *priv,
2554 struct v4l2_format *f)
2555 {
2556 int retval;
2557 const struct bttv_format *fmt;
2558 struct bttv_fh *fh = priv;
2559 struct bttv *btv = fh->btv;
2560 __s32 width, height;
2561 enum v4l2_field field;
2562
2563 retval = bttv_switch_type(fh, f->type);
2564 if (0 != retval)
2565 return retval;
2566
2567 retval = bttv_try_fmt_vid_cap(file, priv, f);
2568 if (0 != retval)
2569 return retval;
2570
2571 width = f->fmt.pix.width;
2572 height = f->fmt.pix.height;
2573 field = f->fmt.pix.field;
2574
2575 retval = limit_scaled_size_lock(fh, &width, &height, f->fmt.pix.field,
2576 /* width_mask: 4 pixels */ ~3,
2577 /* width_bias: nearest */ 2,
2578 /* adjust_size */ 1,
2579 /* adjust_crop */ 1);
2580 if (0 != retval)
2581 return retval;
2582
2583 f->fmt.pix.field = field;
2584
2585 fmt = format_by_fourcc(f->fmt.pix.pixelformat);
2586
2587 /* update our state informations */
2588 fh->fmt = fmt;
2589 fh->cap.field = f->fmt.pix.field;
2590 fh->cap.last = V4L2_FIELD_NONE;
2591 fh->width = f->fmt.pix.width;
2592 fh->height = f->fmt.pix.height;
2593 btv->init.fmt = fmt;
2594 btv->init.width = f->fmt.pix.width;
2595 btv->init.height = f->fmt.pix.height;
2596
2597 return 0;
2598 }
2599
2600 static int bttv_s_fmt_vid_overlay(struct file *file, void *priv,
2601 struct v4l2_format *f)
2602 {
2603 struct bttv_fh *fh = priv;
2604 struct bttv *btv = fh->btv;
2605
2606 if (no_overlay > 0) {
2607 pr_err("V4L2_BUF_TYPE_VIDEO_OVERLAY: no_overlay\n");
2608 return -EINVAL;
2609 }
2610
2611 return setup_window_lock(fh, btv, &f->fmt.win, 1);
2612 }
2613
2614 static int bttv_querycap(struct file *file, void *priv,
2615 struct v4l2_capability *cap)
2616 {
2617 struct bttv_fh *fh = priv;
2618 struct bttv *btv = fh->btv;
2619
2620 if (0 == v4l2)
2621 return -EINVAL;
2622
2623 strlcpy(cap->driver, "bttv", sizeof(cap->driver));
2624 strlcpy(cap->card, btv->video_dev->name, sizeof(cap->card));
2625 snprintf(cap->bus_info, sizeof(cap->bus_info),
2626 "PCI:%s", pci_name(btv->c.pci));
2627 cap->capabilities =
2628 V4L2_CAP_VIDEO_CAPTURE |
2629 V4L2_CAP_VBI_CAPTURE |
2630 V4L2_CAP_READWRITE |
2631 V4L2_CAP_STREAMING;
2632 if (no_overlay <= 0)
2633 cap->capabilities |= V4L2_CAP_VIDEO_OVERLAY;
2634
2635 /*
2636 * No need to lock here: those vars are initialized during board
2637 * probe and remains untouched during the rest of the driver lifecycle
2638 */
2639 if (btv->has_saa6588)
2640 cap->capabilities |= V4L2_CAP_RDS_CAPTURE;
2641 if (btv->tuner_type != TUNER_ABSENT)
2642 cap->capabilities |= V4L2_CAP_TUNER;
2643 return 0;
2644 }
2645
2646 static int bttv_enum_fmt_cap_ovr(struct v4l2_fmtdesc *f)
2647 {
2648 int index = -1, i;
2649
2650 for (i = 0; i < FORMATS; i++) {
2651 if (formats[i].fourcc != -1)
2652 index++;
2653 if ((unsigned int)index == f->index)
2654 break;
2655 }
2656 if (FORMATS == i)
2657 return -EINVAL;
2658
2659 f->pixelformat = formats[i].fourcc;
2660 strlcpy(f->description, formats[i].name, sizeof(f->description));
2661
2662 return i;
2663 }
2664
2665 static int bttv_enum_fmt_vid_cap(struct file *file, void *priv,
2666 struct v4l2_fmtdesc *f)
2667 {
2668 int rc = bttv_enum_fmt_cap_ovr(f);
2669
2670 if (rc < 0)
2671 return rc;
2672
2673 return 0;
2674 }
2675
2676 static int bttv_enum_fmt_vid_overlay(struct file *file, void *priv,
2677 struct v4l2_fmtdesc *f)
2678 {
2679 int rc;
2680
2681 if (no_overlay > 0) {
2682 pr_err("V4L2_BUF_TYPE_VIDEO_OVERLAY: no_overlay\n");
2683 return -EINVAL;
2684 }
2685
2686 rc = bttv_enum_fmt_cap_ovr(f);
2687
2688 if (rc < 0)
2689 return rc;
2690
2691 if (!(formats[rc].flags & FORMAT_FLAGS_PACKED))
2692 return -EINVAL;
2693
2694 return 0;
2695 }
2696
2697 static int bttv_g_fbuf(struct file *file, void *f,
2698 struct v4l2_framebuffer *fb)
2699 {
2700 struct bttv_fh *fh = f;
2701 struct bttv *btv = fh->btv;
2702
2703 *fb = btv->fbuf;
2704 fb->capability = V4L2_FBUF_CAP_LIST_CLIPPING;
2705 if (fh->ovfmt)
2706 fb->fmt.pixelformat = fh->ovfmt->fourcc;
2707 return 0;
2708 }
2709
2710 static int bttv_overlay(struct file *file, void *f, unsigned int on)
2711 {
2712 struct bttv_fh *fh = f;
2713 struct bttv *btv = fh->btv;
2714 struct bttv_buffer *new;
2715 int retval = 0;
2716
2717 if (on) {
2718 /* verify args */
2719 if (unlikely(!btv->fbuf.base)) {
2720 return -EINVAL;
2721 }
2722 if (unlikely(!fh->ov.setup_ok)) {
2723 dprintk("%d: overlay: !setup_ok\n", btv->c.nr);
2724 retval = -EINVAL;
2725 }
2726 if (retval)
2727 return retval;
2728 }
2729
2730 if (!check_alloc_btres_lock(btv, fh, RESOURCE_OVERLAY))
2731 return -EBUSY;
2732
2733 if (on) {
2734 fh->ov.tvnorm = btv->tvnorm;
2735 new = videobuf_sg_alloc(sizeof(*new));
2736 new->crop = btv->crop[!!fh->do_crop].rect;
2737 bttv_overlay_risc(btv, &fh->ov, fh->ovfmt, new);
2738 } else {
2739 new = NULL;
2740 }
2741
2742 /* switch over */
2743 retval = bttv_switch_overlay(btv, fh, new);
2744 return retval;
2745 }
2746
2747 static int bttv_s_fbuf(struct file *file, void *f,
2748 struct v4l2_framebuffer *fb)
2749 {
2750 struct bttv_fh *fh = f;
2751 struct bttv *btv = fh->btv;
2752 const struct bttv_format *fmt;
2753 int retval;
2754
2755 if (!capable(CAP_SYS_ADMIN) &&
2756 !capable(CAP_SYS_RAWIO))
2757 return -EPERM;
2758
2759 /* check args */
2760 fmt = format_by_fourcc(fb->fmt.pixelformat);
2761 if (NULL == fmt)
2762 return -EINVAL;
2763 if (0 == (fmt->flags & FORMAT_FLAGS_PACKED))
2764 return -EINVAL;
2765
2766 retval = -EINVAL;
2767 if (fb->flags & V4L2_FBUF_FLAG_OVERLAY) {
2768 __s32 width = fb->fmt.width;
2769 __s32 height = fb->fmt.height;
2770
2771 retval = limit_scaled_size_lock(fh, &width, &height,
2772 V4L2_FIELD_INTERLACED,
2773 /* width_mask */ ~3,
2774 /* width_bias */ 2,
2775 /* adjust_size */ 0,
2776 /* adjust_crop */ 0);
2777 if (0 != retval)
2778 return retval;
2779 }
2780
2781 /* ok, accept it */
2782 btv->fbuf.base = fb->base;
2783 btv->fbuf.fmt.width = fb->fmt.width;
2784 btv->fbuf.fmt.height = fb->fmt.height;
2785 if (0 != fb->fmt.bytesperline)
2786 btv->fbuf.fmt.bytesperline = fb->fmt.bytesperline;
2787 else
2788 btv->fbuf.fmt.bytesperline = btv->fbuf.fmt.width*fmt->depth/8;
2789
2790 retval = 0;
2791 fh->ovfmt = fmt;
2792 btv->init.ovfmt = fmt;
2793 if (fb->flags & V4L2_FBUF_FLAG_OVERLAY) {
2794 fh->ov.w.left = 0;
2795 fh->ov.w.top = 0;
2796 fh->ov.w.width = fb->fmt.width;
2797 fh->ov.w.height = fb->fmt.height;
2798 btv->init.ov.w.width = fb->fmt.width;
2799 btv->init.ov.w.height = fb->fmt.height;
2800 kfree(fh->ov.clips);
2801 fh->ov.clips = NULL;
2802 fh->ov.nclips = 0;
2803
2804 if (check_btres(fh, RESOURCE_OVERLAY)) {
2805 struct bttv_buffer *new;
2806
2807 new = videobuf_sg_alloc(sizeof(*new));
2808 new->crop = btv->crop[!!fh->do_crop].rect;
2809 bttv_overlay_risc(btv, &fh->ov, fh->ovfmt, new);
2810 retval = bttv_switch_overlay(btv, fh, new);
2811 }
2812 }
2813 return retval;
2814 }
2815
2816 static int bttv_reqbufs(struct file *file, void *priv,
2817 struct v4l2_requestbuffers *p)
2818 {
2819 struct bttv_fh *fh = priv;
2820 return videobuf_reqbufs(bttv_queue(fh), p);
2821 }
2822
2823 static int bttv_querybuf(struct file *file, void *priv,
2824 struct v4l2_buffer *b)
2825 {
2826 struct bttv_fh *fh = priv;
2827 return videobuf_querybuf(bttv_queue(fh), b);
2828 }
2829
2830 static int bttv_qbuf(struct file *file, void *priv, struct v4l2_buffer *b)
2831 {
2832 struct bttv_fh *fh = priv;
2833 struct bttv *btv = fh->btv;
2834 int res = bttv_resource(fh);
2835
2836 if (!check_alloc_btres_lock(btv, fh, res))
2837 return -EBUSY;
2838
2839 return videobuf_qbuf(bttv_queue(fh), b);
2840 }
2841
2842 static int bttv_dqbuf(struct file *file, void *priv, struct v4l2_buffer *b)
2843 {
2844 struct bttv_fh *fh = priv;
2845 return videobuf_dqbuf(bttv_queue(fh), b,
2846 file->f_flags & O_NONBLOCK);
2847 }
2848
2849 static int bttv_streamon(struct file *file, void *priv,
2850 enum v4l2_buf_type type)
2851 {
2852 struct bttv_fh *fh = priv;
2853 struct bttv *btv = fh->btv;
2854 int res = bttv_resource(fh);
2855
2856 if (!check_alloc_btres_lock(btv, fh, res))
2857 return -EBUSY;
2858 return videobuf_streamon(bttv_queue(fh));
2859 }
2860
2861
2862 static int bttv_streamoff(struct file *file, void *priv,
2863 enum v4l2_buf_type type)
2864 {
2865 struct bttv_fh *fh = priv;
2866 struct bttv *btv = fh->btv;
2867 int retval;
2868 int res = bttv_resource(fh);
2869
2870
2871 retval = videobuf_streamoff(bttv_queue(fh));
2872 if (retval < 0)
2873 return retval;
2874 free_btres_lock(btv, fh, res);
2875 return 0;
2876 }
2877
2878 static int bttv_queryctrl(struct file *file, void *priv,
2879 struct v4l2_queryctrl *c)
2880 {
2881 struct bttv_fh *fh = priv;
2882 struct bttv *btv = fh->btv;
2883 const struct v4l2_queryctrl *ctrl;
2884
2885 if ((c->id < V4L2_CID_BASE ||
2886 c->id >= V4L2_CID_LASTP1) &&
2887 (c->id < V4L2_CID_PRIVATE_BASE ||
2888 c->id >= V4L2_CID_PRIVATE_LASTP1))
2889 return -EINVAL;
2890
2891 if (!btv->volume_gpio && (c->id == V4L2_CID_AUDIO_VOLUME))
2892 *c = no_ctl;
2893 else {
2894 ctrl = ctrl_by_id(c->id);
2895
2896 *c = (NULL != ctrl) ? *ctrl : no_ctl;
2897 }
2898
2899 return 0;
2900 }
2901
2902 static int bttv_g_parm(struct file *file, void *f,
2903 struct v4l2_streamparm *parm)
2904 {
2905 struct bttv_fh *fh = f;
2906 struct bttv *btv = fh->btv;
2907
2908 v4l2_video_std_frame_period(bttv_tvnorms[btv->tvnorm].v4l2_id,
2909 &parm->parm.capture.timeperframe);
2910
2911 return 0;
2912 }
2913
2914 static int bttv_g_tuner(struct file *file, void *priv,
2915 struct v4l2_tuner *t)
2916 {
2917 struct bttv_fh *fh = priv;
2918 struct bttv *btv = fh->btv;
2919
2920 if (btv->tuner_type == TUNER_ABSENT)
2921 return -EINVAL;
2922 if (0 != t->index)
2923 return -EINVAL;
2924
2925 t->rxsubchans = V4L2_TUNER_SUB_MONO;
2926 bttv_call_all(btv, tuner, g_tuner, t);
2927 strcpy(t->name, "Television");
2928 t->capability = V4L2_TUNER_CAP_NORM;
2929 t->type = V4L2_TUNER_ANALOG_TV;
2930 if (btread(BT848_DSTATUS)&BT848_DSTATUS_HLOC)
2931 t->signal = 0xffff;
2932
2933 if (btv->audio_mode_gpio)
2934 btv->audio_mode_gpio(btv, t, 0);
2935
2936 return 0;
2937 }
2938
2939 static int bttv_g_priority(struct file *file, void *f, enum v4l2_priority *p)
2940 {
2941 struct bttv_fh *fh = f;
2942 struct bttv *btv = fh->btv;
2943
2944 *p = v4l2_prio_max(&btv->prio);
2945
2946 return 0;
2947 }
2948
2949 static int bttv_s_priority(struct file *file, void *f,
2950 enum v4l2_priority prio)
2951 {
2952 struct bttv_fh *fh = f;
2953 struct bttv *btv = fh->btv;
2954 int rc;
2955
2956 rc = v4l2_prio_change(&btv->prio, &fh->prio, prio);
2957
2958 return rc;
2959 }
2960
2961 static int bttv_cropcap(struct file *file, void *priv,
2962 struct v4l2_cropcap *cap)
2963 {
2964 struct bttv_fh *fh = priv;
2965 struct bttv *btv = fh->btv;
2966
2967 if (cap->type != V4L2_BUF_TYPE_VIDEO_CAPTURE &&
2968 cap->type != V4L2_BUF_TYPE_VIDEO_OVERLAY)
2969 return -EINVAL;
2970
2971 *cap = bttv_tvnorms[btv->tvnorm].cropcap;
2972
2973 return 0;
2974 }
2975
2976 static int bttv_g_crop(struct file *file, void *f, struct v4l2_crop *crop)
2977 {
2978 struct bttv_fh *fh = f;
2979 struct bttv *btv = fh->btv;
2980
2981 if (crop->type != V4L2_BUF_TYPE_VIDEO_CAPTURE &&
2982 crop->type != V4L2_BUF_TYPE_VIDEO_OVERLAY)
2983 return -EINVAL;
2984
2985 /* No fh->do_crop = 1; because btv->crop[1] may be
2986 inconsistent with fh->width or fh->height and apps
2987 do not expect a change here. */
2988
2989 crop->c = btv->crop[!!fh->do_crop].rect;
2990
2991 return 0;
2992 }
2993
2994 static int bttv_s_crop(struct file *file, void *f, struct v4l2_crop *crop)
2995 {
2996 struct bttv_fh *fh = f;
2997 struct bttv *btv = fh->btv;
2998 const struct v4l2_rect *b;
2999 int retval;
3000 struct bttv_crop c;
3001 __s32 b_left;
3002 __s32 b_top;
3003 __s32 b_right;
3004 __s32 b_bottom;
3005
3006 if (crop->type != V4L2_BUF_TYPE_VIDEO_CAPTURE &&
3007 crop->type != V4L2_BUF_TYPE_VIDEO_OVERLAY)
3008 return -EINVAL;
3009
3010 /* Make sure tvnorm, vbi_end and the current cropping
3011 parameters remain consistent until we're done. Note
3012 read() may change vbi_end in check_alloc_btres_lock(). */
3013 retval = v4l2_prio_check(&btv->prio, fh->prio);
3014 if (0 != retval) {
3015 return retval;
3016 }
3017
3018 retval = -EBUSY;
3019
3020 if (locked_btres(fh->btv, VIDEO_RESOURCES)) {
3021 return retval;
3022 }
3023
3024 b = &bttv_tvnorms[btv->tvnorm].cropcap.bounds;
3025
3026 b_left = b->left;
3027 b_right = b_left + b->width;
3028 b_bottom = b->top + b->height;
3029
3030 b_top = max(b->top, btv->vbi_end);
3031 if (b_top + 32 >= b_bottom) {
3032 return retval;
3033 }
3034
3035 /* Min. scaled size 48 x 32. */
3036 c.rect.left = clamp(crop->c.left, b_left, b_right - 48);
3037 c.rect.left = min(c.rect.left, (__s32) MAX_HDELAY);
3038
3039 c.rect.width = clamp(crop->c.width,
3040 48, b_right - c.rect.left);
3041
3042 c.rect.top = clamp(crop->c.top, b_top, b_bottom - 32);
3043 /* Top and height must be a multiple of two. */
3044 c.rect.top = (c.rect.top + 1) & ~1;
3045
3046 c.rect.height = clamp(crop->c.height,
3047 32, b_bottom - c.rect.top);
3048 c.rect.height = (c.rect.height + 1) & ~1;
3049
3050 bttv_crop_calc_limits(&c);
3051
3052 btv->crop[1] = c;
3053
3054 fh->do_crop = 1;
3055
3056 if (fh->width < c.min_scaled_width) {
3057 fh->width = c.min_scaled_width;
3058 btv->init.width = c.min_scaled_width;
3059 } else if (fh->width > c.max_scaled_width) {
3060 fh->width = c.max_scaled_width;
3061 btv->init.width = c.max_scaled_width;
3062 }
3063
3064 if (fh->height < c.min_scaled_height) {
3065 fh->height = c.min_scaled_height;
3066 btv->init.height = c.min_scaled_height;
3067 } else if (fh->height > c.max_scaled_height) {
3068 fh->height = c.max_scaled_height;
3069 btv->init.height = c.max_scaled_height;
3070 }
3071
3072 return 0;
3073 }
3074
3075 static int bttv_g_audio(struct file *file, void *priv, struct v4l2_audio *a)
3076 {
3077 if (unlikely(a->index))
3078 return -EINVAL;
3079
3080 strcpy(a->name, "audio");
3081 return 0;
3082 }
3083
3084 static int bttv_s_audio(struct file *file, void *priv, struct v4l2_audio *a)
3085 {
3086 if (unlikely(a->index))
3087 return -EINVAL;
3088
3089 return 0;
3090 }
3091
3092 static ssize_t bttv_read(struct file *file, char __user *data,
3093 size_t count, loff_t *ppos)
3094 {
3095 struct bttv_fh *fh = file->private_data;
3096 int retval = 0;
3097
3098 if (fh->btv->errors)
3099 bttv_reinit_bt848(fh->btv);
3100 dprintk("%d: read count=%d type=%s\n",
3101 fh->btv->c.nr, (int)count, v4l2_type_names[fh->type]);
3102
3103 switch (fh->type) {
3104 case V4L2_BUF_TYPE_VIDEO_CAPTURE:
3105 if (!check_alloc_btres_lock(fh->btv, fh, RESOURCE_VIDEO_READ)) {
3106 /* VIDEO_READ in use by another fh,
3107 or VIDEO_STREAM by any fh. */
3108 return -EBUSY;
3109 }
3110 retval = videobuf_read_one(&fh->cap, data, count, ppos,
3111 file->f_flags & O_NONBLOCK);
3112 free_btres_lock(fh->btv, fh, RESOURCE_VIDEO_READ);
3113 break;
3114 case V4L2_BUF_TYPE_VBI_CAPTURE:
3115 if (!check_alloc_btres_lock(fh->btv,fh,RESOURCE_VBI))
3116 return -EBUSY;
3117 retval = videobuf_read_stream(&fh->vbi, data, count, ppos, 1,
3118 file->f_flags & O_NONBLOCK);
3119 break;
3120 default:
3121 BUG();
3122 }
3123 return retval;
3124 }
3125
3126 static unsigned int bttv_poll(struct file *file, poll_table *wait)
3127 {
3128 struct bttv_fh *fh = file->private_data;
3129 struct bttv_buffer *buf;
3130 enum v4l2_field field;
3131 unsigned int rc = POLLERR;
3132
3133 if (V4L2_BUF_TYPE_VBI_CAPTURE == fh->type) {
3134 if (!check_alloc_btres_lock(fh->btv,fh,RESOURCE_VBI))
3135 return POLLERR;
3136 return videobuf_poll_stream(file, &fh->vbi, wait);
3137 }
3138
3139 if (check_btres(fh,RESOURCE_VIDEO_STREAM)) {
3140 /* streaming capture */
3141 if (list_empty(&fh->cap.stream))
3142 goto err;
3143 buf = list_entry(fh->cap.stream.next,struct bttv_buffer,vb.stream);
3144 } else {
3145 /* read() capture */
3146 if (NULL == fh->cap.read_buf) {
3147 /* need to capture a new frame */
3148 if (locked_btres(fh->btv,RESOURCE_VIDEO_STREAM))
3149 goto err;
3150 fh->cap.read_buf = videobuf_sg_alloc(fh->cap.msize);
3151 if (NULL == fh->cap.read_buf)
3152 goto err;
3153 fh->cap.read_buf->memory = V4L2_MEMORY_USERPTR;
3154 field = videobuf_next_field(&fh->cap);
3155 if (0 != fh->cap.ops->buf_prepare(&fh->cap,fh->cap.read_buf,field)) {
3156 kfree (fh->cap.read_buf);
3157 fh->cap.read_buf = NULL;
3158 goto err;
3159 }
3160 fh->cap.ops->buf_queue(&fh->cap,fh->cap.read_buf);
3161 fh->cap.read_off = 0;
3162 }
3163 buf = (struct bttv_buffer*)fh->cap.read_buf;
3164 }
3165
3166 poll_wait(file, &buf->vb.done, wait);
3167 if (buf->vb.state == VIDEOBUF_DONE ||
3168 buf->vb.state == VIDEOBUF_ERROR)
3169 rc = POLLIN|POLLRDNORM;
3170 else
3171 rc = 0;
3172 err:
3173 return rc;
3174 }
3175
3176 static int bttv_open(struct file *file)
3177 {
3178 struct video_device *vdev = video_devdata(file);
3179 struct bttv *btv = video_drvdata(file);
3180 struct bttv_fh *fh;
3181 enum v4l2_buf_type type = 0;
3182
3183 dprintk("open dev=%s\n", video_device_node_name(vdev));
3184
3185 if (vdev->vfl_type == VFL_TYPE_GRABBER) {
3186 type = V4L2_BUF_TYPE_VIDEO_CAPTURE;
3187 } else if (vdev->vfl_type == VFL_TYPE_VBI) {
3188 type = V4L2_BUF_TYPE_VBI_CAPTURE;
3189 } else {
3190 WARN_ON(1);
3191 return -ENODEV;
3192 }
3193
3194 dprintk("%d: open called (type=%s)\n",
3195 btv->c.nr, v4l2_type_names[type]);
3196
3197 /* allocate per filehandle data */
3198 fh = kmalloc(sizeof(*fh), GFP_KERNEL);
3199 if (unlikely(!fh))
3200 return -ENOMEM;
3201 file->private_data = fh;
3202
3203 *fh = btv->init;
3204
3205 fh->type = type;
3206 fh->ov.setup_ok = 0;
3207
3208 v4l2_prio_open(&btv->prio, &fh->prio);
3209
3210 videobuf_queue_sg_init(&fh->cap, &bttv_video_qops,
3211 &btv->c.pci->dev, &btv->s_lock,
3212 V4L2_BUF_TYPE_VIDEO_CAPTURE,
3213 V4L2_FIELD_INTERLACED,
3214 sizeof(struct bttv_buffer),
3215 fh, &btv->lock);
3216 videobuf_queue_sg_init(&fh->vbi, &bttv_vbi_qops,
3217 &btv->c.pci->dev, &btv->s_lock,
3218 V4L2_BUF_TYPE_VBI_CAPTURE,
3219 V4L2_FIELD_SEQ_TB,
3220 sizeof(struct bttv_buffer),
3221 fh, &btv->lock);
3222 set_tvnorm(btv,btv->tvnorm);
3223 set_input(btv, btv->input, btv->tvnorm);
3224
3225 btv->users++;
3226
3227 /* The V4L2 spec requires one global set of cropping parameters
3228 which only change on request. These are stored in btv->crop[1].
3229 However for compatibility with V4L apps and cropping unaware
3230 V4L2 apps we now reset the cropping parameters as seen through
3231 this fh, which is to say VIDIOC_G_CROP and scaling limit checks
3232 will use btv->crop[0], the default cropping parameters for the
3233 current video standard, and VIDIOC_S_FMT will not implicitely
3234 change the cropping parameters until VIDIOC_S_CROP has been
3235 called. */
3236 fh->do_crop = !reset_crop; /* module parameter */
3237
3238 /* Likewise there should be one global set of VBI capture
3239 parameters, but for compatibility with V4L apps and earlier
3240 driver versions each fh has its own parameters. */
3241 bttv_vbi_fmt_reset(&fh->vbi_fmt, btv->tvnorm);
3242
3243 bttv_field_count(btv);
3244 return 0;
3245 }
3246
3247 static int bttv_release(struct file *file)
3248 {
3249 struct bttv_fh *fh = file->private_data;
3250 struct bttv *btv = fh->btv;
3251
3252 /* turn off overlay */
3253 if (check_btres(fh, RESOURCE_OVERLAY))
3254 bttv_switch_overlay(btv,fh,NULL);
3255
3256 /* stop video capture */
3257 if (check_btres(fh, RESOURCE_VIDEO_STREAM)) {
3258 videobuf_streamoff(&fh->cap);
3259 free_btres_lock(btv,fh,RESOURCE_VIDEO_STREAM);
3260 }
3261 if (fh->cap.read_buf) {
3262 buffer_release(&fh->cap,fh->cap.read_buf);
3263 kfree(fh->cap.read_buf);
3264 }
3265 if (check_btres(fh, RESOURCE_VIDEO_READ)) {
3266 free_btres_lock(btv, fh, RESOURCE_VIDEO_READ);
3267 }
3268
3269 /* stop vbi capture */
3270 if (check_btres(fh, RESOURCE_VBI)) {
3271 videobuf_stop(&fh->vbi);
3272 free_btres_lock(btv,fh,RESOURCE_VBI);
3273 }
3274
3275 /* free stuff */
3276
3277 videobuf_mmap_free(&fh->cap);
3278 videobuf_mmap_free(&fh->vbi);
3279 v4l2_prio_close(&btv->prio, fh->prio);
3280 file->private_data = NULL;
3281 kfree(fh);
3282
3283 btv->users--;
3284 bttv_field_count(btv);
3285
3286 if (!btv->users)
3287 audio_mute(btv, 1);
3288
3289 return 0;
3290 }
3291
3292 static int
3293 bttv_mmap(struct file *file, struct vm_area_struct *vma)
3294 {
3295 struct bttv_fh *fh = file->private_data;
3296
3297 dprintk("%d: mmap type=%s 0x%lx+%ld\n",
3298 fh->btv->c.nr, v4l2_type_names[fh->type],
3299 vma->vm_start, vma->vm_end - vma->vm_start);
3300 return videobuf_mmap_mapper(bttv_queue(fh),vma);
3301 }
3302
3303 static const struct v4l2_file_operations bttv_fops =
3304 {
3305 .owner = THIS_MODULE,
3306 .open = bttv_open,
3307 .release = bttv_release,
3308 .unlocked_ioctl = video_ioctl2,
3309 .read = bttv_read,
3310 .mmap = bttv_mmap,
3311 .poll = bttv_poll,
3312 };
3313
3314 static const struct v4l2_ioctl_ops bttv_ioctl_ops = {
3315 .vidioc_querycap = bttv_querycap,
3316 .vidioc_enum_fmt_vid_cap = bttv_enum_fmt_vid_cap,
3317 .vidioc_g_fmt_vid_cap = bttv_g_fmt_vid_cap,
3318 .vidioc_try_fmt_vid_cap = bttv_try_fmt_vid_cap,
3319 .vidioc_s_fmt_vid_cap = bttv_s_fmt_vid_cap,
3320 .vidioc_enum_fmt_vid_overlay = bttv_enum_fmt_vid_overlay,
3321 .vidioc_g_fmt_vid_overlay = bttv_g_fmt_vid_overlay,
3322 .vidioc_try_fmt_vid_overlay = bttv_try_fmt_vid_overlay,
3323 .vidioc_s_fmt_vid_overlay = bttv_s_fmt_vid_overlay,
3324 .vidioc_g_fmt_vbi_cap = bttv_g_fmt_vbi_cap,
3325 .vidioc_try_fmt_vbi_cap = bttv_try_fmt_vbi_cap,
3326 .vidioc_s_fmt_vbi_cap = bttv_s_fmt_vbi_cap,
3327 .vidioc_g_audio = bttv_g_audio,
3328 .vidioc_s_audio = bttv_s_audio,
3329 .vidioc_cropcap = bttv_cropcap,
3330 .vidioc_reqbufs = bttv_reqbufs,
3331 .vidioc_querybuf = bttv_querybuf,
3332 .vidioc_qbuf = bttv_qbuf,
3333 .vidioc_dqbuf = bttv_dqbuf,
3334 .vidioc_s_std = bttv_s_std,
3335 .vidioc_enum_input = bttv_enum_input,
3336 .vidioc_g_input = bttv_g_input,
3337 .vidioc_s_input = bttv_s_input,
3338 .vidioc_queryctrl = bttv_queryctrl,
3339 .vidioc_g_ctrl = bttv_g_ctrl,
3340 .vidioc_s_ctrl = bttv_s_ctrl,
3341 .vidioc_streamon = bttv_streamon,
3342 .vidioc_streamoff = bttv_streamoff,
3343 .vidioc_g_tuner = bttv_g_tuner,
3344 .vidioc_s_tuner = bttv_s_tuner,
3345 .vidioc_g_crop = bttv_g_crop,
3346 .vidioc_s_crop = bttv_s_crop,
3347 .vidioc_g_fbuf = bttv_g_fbuf,
3348 .vidioc_s_fbuf = bttv_s_fbuf,
3349 .vidioc_overlay = bttv_overlay,
3350 .vidioc_g_priority = bttv_g_priority,
3351 .vidioc_s_priority = bttv_s_priority,
3352 .vidioc_g_parm = bttv_g_parm,
3353 .vidioc_g_frequency = bttv_g_frequency,
3354 .vidioc_s_frequency = bttv_s_frequency,
3355 .vidioc_log_status = bttv_log_status,
3356 .vidioc_querystd = bttv_querystd,
3357 #ifdef CONFIG_VIDEO_ADV_DEBUG
3358 .vidioc_g_register = bttv_g_register,
3359 .vidioc_s_register = bttv_s_register,
3360 #endif
3361 };
3362
3363 static struct video_device bttv_video_template = {
3364 .fops = &bttv_fops,
3365 .ioctl_ops = &bttv_ioctl_ops,
3366 .tvnorms = BTTV_NORMS,
3367 .current_norm = V4L2_STD_PAL,
3368 };
3369
3370 /* ----------------------------------------------------------------------- */
3371 /* radio interface */
3372
3373 static int radio_open(struct file *file)
3374 {
3375 struct video_device *vdev = video_devdata(file);
3376 struct bttv *btv = video_drvdata(file);
3377 struct bttv_fh *fh;
3378
3379 dprintk("open dev=%s\n", video_device_node_name(vdev));
3380
3381 dprintk("%d: open called (radio)\n", btv->c.nr);
3382
3383 /* allocate per filehandle data */
3384 fh = kmalloc(sizeof(*fh), GFP_KERNEL);
3385 if (unlikely(!fh))
3386 return -ENOMEM;
3387 file->private_data = fh;
3388 *fh = btv->init;
3389
3390 v4l2_prio_open(&btv->prio, &fh->prio);
3391
3392 btv->radio_user++;
3393
3394 bttv_call_all(btv, tuner, s_radio);
3395 audio_input(btv,TVAUDIO_INPUT_RADIO);
3396
3397 return 0;
3398 }
3399
3400 static int radio_release(struct file *file)
3401 {
3402 struct bttv_fh *fh = file->private_data;
3403 struct bttv *btv = fh->btv;
3404 struct saa6588_command cmd;
3405
3406 v4l2_prio_close(&btv->prio, fh->prio);
3407 file->private_data = NULL;
3408 kfree(fh);
3409
3410 btv->radio_user--;
3411
3412 bttv_call_all(btv, core, ioctl, SAA6588_CMD_CLOSE, &cmd);
3413
3414 return 0;
3415 }
3416
3417 static int radio_querycap(struct file *file, void *priv,
3418 struct v4l2_capability *cap)
3419 {
3420 struct bttv_fh *fh = priv;
3421 struct bttv *btv = fh->btv;
3422
3423 strcpy(cap->driver, "bttv");
3424 strlcpy(cap->card, btv->radio_dev->name, sizeof(cap->card));
3425 sprintf(cap->bus_info, "PCI:%s", pci_name(btv->c.pci));
3426 cap->capabilities = V4L2_CAP_TUNER;
3427
3428 return 0;
3429 }
3430
3431 static int radio_g_tuner(struct file *file, void *priv, struct v4l2_tuner *t)
3432 {
3433 struct bttv_fh *fh = priv;
3434 struct bttv *btv = fh->btv;
3435
3436 if (btv->tuner_type == TUNER_ABSENT)
3437 return -EINVAL;
3438 if (0 != t->index)
3439 return -EINVAL;
3440 strcpy(t->name, "Radio");
3441 t->type = V4L2_TUNER_RADIO;
3442
3443 bttv_call_all(btv, tuner, g_tuner, t);
3444
3445 if (btv->audio_mode_gpio)
3446 btv->audio_mode_gpio(btv, t, 0);
3447
3448 return 0;
3449 }
3450
3451 static int radio_enum_input(struct file *file, void *priv,
3452 struct v4l2_input *i)
3453 {
3454 if (i->index != 0)
3455 return -EINVAL;
3456
3457 strcpy(i->name, "Radio");
3458 i->type = V4L2_INPUT_TYPE_TUNER;
3459
3460 return 0;
3461 }
3462
3463 static int radio_g_audio(struct file *file, void *priv,
3464 struct v4l2_audio *a)
3465 {
3466 if (unlikely(a->index))
3467 return -EINVAL;
3468
3469 strcpy(a->name, "Radio");
3470
3471 return 0;
3472 }
3473
3474 static int radio_s_tuner(struct file *file, void *priv,
3475 struct v4l2_tuner *t)
3476 {
3477 struct bttv_fh *fh = priv;
3478 struct bttv *btv = fh->btv;
3479
3480 if (0 != t->index)
3481 return -EINVAL;
3482
3483 bttv_call_all(btv, tuner, s_tuner, t);
3484 return 0;
3485 }
3486
3487 static int radio_s_audio(struct file *file, void *priv,
3488 struct v4l2_audio *a)
3489 {
3490 if (unlikely(a->index))
3491 return -EINVAL;
3492
3493 return 0;
3494 }
3495
3496 static int radio_s_input(struct file *filp, void *priv, unsigned int i)
3497 {
3498 if (unlikely(i))
3499 return -EINVAL;
3500
3501 return 0;
3502 }
3503
3504 static int radio_s_std(struct file *file, void *fh, v4l2_std_id *norm)
3505 {
3506 return 0;
3507 }
3508
3509 static int radio_queryctrl(struct file *file, void *priv,
3510 struct v4l2_queryctrl *c)
3511 {
3512 const struct v4l2_queryctrl *ctrl;
3513
3514 if (c->id < V4L2_CID_BASE ||
3515 c->id >= V4L2_CID_LASTP1)
3516 return -EINVAL;
3517
3518 if (c->id == V4L2_CID_AUDIO_MUTE) {
3519 ctrl = ctrl_by_id(c->id);
3520 *c = *ctrl;
3521 } else
3522 *c = no_ctl;
3523
3524 return 0;
3525 }
3526
3527 static int radio_g_input(struct file *filp, void *priv, unsigned int *i)
3528 {
3529 *i = 0;
3530 return 0;
3531 }
3532
3533 static ssize_t radio_read(struct file *file, char __user *data,
3534 size_t count, loff_t *ppos)
3535 {
3536 struct bttv_fh *fh = file->private_data;
3537 struct bttv *btv = fh->btv;
3538 struct saa6588_command cmd;
3539 cmd.block_count = count/3;
3540 cmd.buffer = data;
3541 cmd.instance = file;
3542 cmd.result = -ENODEV;
3543
3544 bttv_call_all(btv, core, ioctl, SAA6588_CMD_READ, &cmd);
3545
3546 return cmd.result;
3547 }
3548
3549 static unsigned int radio_poll(struct file *file, poll_table *wait)
3550 {
3551 struct bttv_fh *fh = file->private_data;
3552 struct bttv *btv = fh->btv;
3553 struct saa6588_command cmd;
3554 cmd.instance = file;
3555 cmd.event_list = wait;
3556 cmd.result = -ENODEV;
3557 bttv_call_all(btv, core, ioctl, SAA6588_CMD_POLL, &cmd);
3558
3559 return cmd.result;
3560 }
3561
3562 static const struct v4l2_file_operations radio_fops =
3563 {
3564 .owner = THIS_MODULE,
3565 .open = radio_open,
3566 .read = radio_read,
3567 .release = radio_release,
3568 .unlocked_ioctl = video_ioctl2,
3569 .poll = radio_poll,
3570 };
3571
3572 static const struct v4l2_ioctl_ops radio_ioctl_ops = {
3573 .vidioc_querycap = radio_querycap,
3574 .vidioc_g_tuner = radio_g_tuner,
3575 .vidioc_enum_input = radio_enum_input,
3576 .vidioc_g_audio = radio_g_audio,
3577 .vidioc_s_tuner = radio_s_tuner,
3578 .vidioc_s_audio = radio_s_audio,
3579 .vidioc_s_input = radio_s_input,
3580 .vidioc_s_std = radio_s_std,
3581 .vidioc_queryctrl = radio_queryctrl,
3582 .vidioc_g_input = radio_g_input,
3583 .vidioc_g_ctrl = bttv_g_ctrl,
3584 .vidioc_s_ctrl = bttv_s_ctrl,
3585 .vidioc_g_frequency = bttv_g_frequency,
3586 .vidioc_s_frequency = bttv_s_frequency,
3587 };
3588
3589 static struct video_device radio_template = {
3590 .fops = &radio_fops,
3591 .ioctl_ops = &radio_ioctl_ops,
3592 };
3593
3594 /* ----------------------------------------------------------------------- */
3595 /* some debug code */
3596
3597 static int bttv_risc_decode(u32 risc)
3598 {
3599 static char *instr[16] = {
3600 [ BT848_RISC_WRITE >> 28 ] = "write",
3601 [ BT848_RISC_SKIP >> 28 ] = "skip",
3602 [ BT848_RISC_WRITEC >> 28 ] = "writec",
3603 [ BT848_RISC_JUMP >> 28 ] = "jump",
3604 [ BT848_RISC_SYNC >> 28 ] = "sync",
3605 [ BT848_RISC_WRITE123 >> 28 ] = "write123",
3606 [ BT848_RISC_SKIP123 >> 28 ] = "skip123",
3607 [ BT848_RISC_WRITE1S23 >> 28 ] = "write1s23",
3608 };
3609 static int incr[16] = {
3610 [ BT848_RISC_WRITE >> 28 ] = 2,
3611 [ BT848_RISC_JUMP >> 28 ] = 2,
3612 [ BT848_RISC_SYNC >> 28 ] = 2,
3613 [ BT848_RISC_WRITE123 >> 28 ] = 5,
3614 [ BT848_RISC_SKIP123 >> 28 ] = 2,
3615 [ BT848_RISC_WRITE1S23 >> 28 ] = 3,
3616 };
3617 static char *bits[] = {
3618 "be0", "be1", "be2", "be3/resync",
3619 "set0", "set1", "set2", "set3",
3620 "clr0", "clr1", "clr2", "clr3",
3621 "irq", "res", "eol", "sol",
3622 };
3623 int i;
3624
3625 pr_cont("0x%08x [ %s", risc,
3626 instr[risc >> 28] ? instr[risc >> 28] : "INVALID");
3627 for (i = ARRAY_SIZE(bits)-1; i >= 0; i--)
3628 if (risc & (1 << (i + 12)))
3629 pr_cont(" %s", bits[i]);
3630 pr_cont(" count=%d ]\n", risc & 0xfff);
3631 return incr[risc >> 28] ? incr[risc >> 28] : 1;
3632 }
3633
3634 static void bttv_risc_disasm(struct bttv *btv,
3635 struct btcx_riscmem *risc)
3636 {
3637 unsigned int i,j,n;
3638
3639 pr_info("%s: risc disasm: %p [dma=0x%08lx]\n",
3640 btv->c.v4l2_dev.name, risc->cpu, (unsigned long)risc->dma);
3641 for (i = 0; i < (risc->size >> 2); i += n) {
3642 pr_info("%s: 0x%lx: ",
3643 btv->c.v4l2_dev.name,
3644 (unsigned long)(risc->dma + (i<<2)));
3645 n = bttv_risc_decode(le32_to_cpu(risc->cpu[i]));
3646 for (j = 1; j < n; j++)
3647 pr_info("%s: 0x%lx: 0x%08x [ arg #%d ]\n",
3648 btv->c.v4l2_dev.name,
3649 (unsigned long)(risc->dma + ((i+j)<<2)),
3650 risc->cpu[i+j], j);
3651 if (0 == risc->cpu[i])
3652 break;
3653 }
3654 }
3655
3656 static void bttv_print_riscaddr(struct bttv *btv)
3657 {
3658 pr_info(" main: %08llx\n", (unsigned long long)btv->main.dma);
3659 pr_info(" vbi : o=%08llx e=%08llx\n",
3660 btv->cvbi ? (unsigned long long)btv->cvbi->top.dma : 0,
3661 btv->cvbi ? (unsigned long long)btv->cvbi->bottom.dma : 0);
3662 pr_info(" cap : o=%08llx e=%08llx\n",
3663 btv->curr.top
3664 ? (unsigned long long)btv->curr.top->top.dma : 0,
3665 btv->curr.bottom
3666 ? (unsigned long long)btv->curr.bottom->bottom.dma : 0);
3667 pr_info(" scr : o=%08llx e=%08llx\n",
3668 btv->screen ? (unsigned long long)btv->screen->top.dma : 0,
3669 btv->screen ? (unsigned long long)btv->screen->bottom.dma : 0);
3670 bttv_risc_disasm(btv, &btv->main);
3671 }
3672
3673 /* ----------------------------------------------------------------------- */
3674 /* irq handler */
3675
3676 static char *irq_name[] = {
3677 "FMTCHG", // format change detected (525 vs. 625)
3678 "VSYNC", // vertical sync (new field)
3679 "HSYNC", // horizontal sync
3680 "OFLOW", // chroma/luma AGC overflow
3681 "HLOCK", // horizontal lock changed
3682 "VPRES", // video presence changed
3683 "6", "7",
3684 "I2CDONE", // hw irc operation finished
3685 "GPINT", // gpio port triggered irq
3686 "10",
3687 "RISCI", // risc instruction triggered irq
3688 "FBUS", // pixel data fifo dropped data (high pci bus latencies)
3689 "FTRGT", // pixel data fifo overrun
3690 "FDSR", // fifo data stream resyncronisation
3691 "PPERR", // parity error (data transfer)
3692 "RIPERR", // parity error (read risc instructions)
3693 "PABORT", // pci abort
3694 "OCERR", // risc instruction error
3695 "SCERR", // syncronisation error
3696 };
3697
3698 static void bttv_print_irqbits(u32 print, u32 mark)
3699 {
3700 unsigned int i;
3701
3702 pr_cont("bits:");
3703 for (i = 0; i < ARRAY_SIZE(irq_name); i++) {
3704 if (print & (1 << i))
3705 pr_cont(" %s", irq_name[i]);
3706 if (mark & (1 << i))
3707 pr_cont("*");
3708 }
3709 }
3710
3711 static void bttv_irq_debug_low_latency(struct bttv *btv, u32 rc)
3712 {
3713 pr_warn("%d: irq: skipped frame [main=%lx,o_vbi=%lx,o_field=%lx,rc=%lx]\n",
3714 btv->c.nr,
3715 (unsigned long)btv->main.dma,
3716 (unsigned long)le32_to_cpu(btv->main.cpu[RISC_SLOT_O_VBI+1]),
3717 (unsigned long)le32_to_cpu(btv->main.cpu[RISC_SLOT_O_FIELD+1]),
3718 (unsigned long)rc);
3719
3720 if (0 == (btread(BT848_DSTATUS) & BT848_DSTATUS_HLOC)) {
3721 pr_notice("%d: Oh, there (temporarily?) is no input signal. "
3722 "Ok, then this is harmless, don't worry ;)\n",
3723 btv->c.nr);
3724 return;
3725 }
3726 pr_notice("%d: Uhm. Looks like we have unusual high IRQ latencies\n",
3727 btv->c.nr);
3728 pr_notice("%d: Lets try to catch the culpit red-handed ...\n",
3729 btv->c.nr);
3730 dump_stack();
3731 }
3732
3733 static int
3734 bttv_irq_next_video(struct bttv *btv, struct bttv_buffer_set *set)
3735 {
3736 struct bttv_buffer *item;
3737
3738 memset(set,0,sizeof(*set));
3739
3740 /* capture request ? */
3741 if (!list_empty(&btv->capture)) {
3742 set->frame_irq = 1;
3743 item = list_entry(btv->capture.next, struct bttv_buffer, vb.queue);
3744 if (V4L2_FIELD_HAS_TOP(item->vb.field))
3745 set->top = item;
3746 if (V4L2_FIELD_HAS_BOTTOM(item->vb.field))
3747 set->bottom = item;
3748
3749 /* capture request for other field ? */
3750 if (!V4L2_FIELD_HAS_BOTH(item->vb.field) &&
3751 (item->vb.queue.next != &btv->capture)) {
3752 item = list_entry(item->vb.queue.next, struct bttv_buffer, vb.queue);
3753 /* Mike Isely <isely@pobox.com> - Only check
3754 * and set up the bottom field in the logic
3755 * below. Don't ever do the top field. This
3756 * of course means that if we set up the
3757 * bottom field in the above code that we'll
3758 * actually skip a field. But that's OK.
3759 * Having processed only a single buffer this
3760 * time, then the next time around the first
3761 * available buffer should be for a top field.
3762 * That will then cause us here to set up a
3763 * top then a bottom field in the normal way.
3764 * The alternative to this understanding is
3765 * that we set up the second available buffer
3766 * as a top field, but that's out of order
3767 * since this driver always processes the top
3768 * field first - the effect will be the two
3769 * buffers being returned in the wrong order,
3770 * with the second buffer also being delayed
3771 * by one field time (owing to the fifo nature
3772 * of videobuf). Worse still, we'll be stuck
3773 * doing fields out of order now every time
3774 * until something else causes a field to be
3775 * dropped. By effectively forcing a field to
3776 * drop this way then we always get back into
3777 * sync within a single frame time. (Out of
3778 * order fields can screw up deinterlacing
3779 * algorithms.) */
3780 if (!V4L2_FIELD_HAS_BOTH(item->vb.field)) {
3781 if (NULL == set->bottom &&
3782 V4L2_FIELD_BOTTOM == item->vb.field) {
3783 set->bottom = item;
3784 }
3785 if (NULL != set->top && NULL != set->bottom)
3786 set->top_irq = 2;
3787 }
3788 }
3789 }
3790
3791 /* screen overlay ? */
3792 if (NULL != btv->screen) {
3793 if (V4L2_FIELD_HAS_BOTH(btv->screen->vb.field)) {
3794 if (NULL == set->top && NULL == set->bottom) {
3795 set->top = btv->screen;
3796 set->bottom = btv->screen;
3797 }
3798 } else {
3799 if (V4L2_FIELD_TOP == btv->screen->vb.field &&
3800 NULL == set->top) {
3801 set->top = btv->screen;
3802 }
3803 if (V4L2_FIELD_BOTTOM == btv->screen->vb.field &&
3804 NULL == set->bottom) {
3805 set->bottom = btv->screen;
3806 }
3807 }
3808 }
3809
3810 dprintk("%d: next set: top=%p bottom=%p [screen=%p,irq=%d,%d]\n",
3811 btv->c.nr, set->top, set->bottom,
3812 btv->screen, set->frame_irq, set->top_irq);
3813 return 0;
3814 }
3815
3816 static void
3817 bttv_irq_wakeup_video(struct bttv *btv, struct bttv_buffer_set *wakeup,
3818 struct bttv_buffer_set *curr, unsigned int state)
3819 {
3820 struct timeval ts;
3821
3822 do_gettimeofday(&ts);
3823
3824 if (wakeup->top == wakeup->bottom) {
3825 if (NULL != wakeup->top && curr->top != wakeup->top) {
3826 if (irq_debug > 1)
3827 pr_debug("%d: wakeup: both=%p\n",
3828 btv->c.nr, wakeup->top);
3829 wakeup->top->vb.ts = ts;
3830 wakeup->top->vb.field_count = btv->field_count;
3831 wakeup->top->vb.state = state;
3832 wake_up(&wakeup->top->vb.done);
3833 }
3834 } else {
3835 if (NULL != wakeup->top && curr->top != wakeup->top) {
3836 if (irq_debug > 1)
3837 pr_debug("%d: wakeup: top=%p\n",
3838 btv->c.nr, wakeup->top);
3839 wakeup->top->vb.ts = ts;
3840 wakeup->top->vb.field_count = btv->field_count;
3841 wakeup->top->vb.state = state;
3842 wake_up(&wakeup->top->vb.done);
3843 }
3844 if (NULL != wakeup->bottom && curr->bottom != wakeup->bottom) {
3845 if (irq_debug > 1)
3846 pr_debug("%d: wakeup: bottom=%p\n",
3847 btv->c.nr, wakeup->bottom);
3848 wakeup->bottom->vb.ts = ts;
3849 wakeup->bottom->vb.field_count = btv->field_count;
3850 wakeup->bottom->vb.state = state;
3851 wake_up(&wakeup->bottom->vb.done);
3852 }
3853 }
3854 }
3855
3856 static void
3857 bttv_irq_wakeup_vbi(struct bttv *btv, struct bttv_buffer *wakeup,
3858 unsigned int state)
3859 {
3860 struct timeval ts;
3861
3862 if (NULL == wakeup)
3863 return;
3864
3865 do_gettimeofday(&ts);
3866 wakeup->vb.ts = ts;
3867 wakeup->vb.field_count = btv->field_count;
3868 wakeup->vb.state = state;
3869 wake_up(&wakeup->vb.done);
3870 }
3871
3872 static void bttv_irq_timeout(unsigned long data)
3873 {
3874 struct bttv *btv = (struct bttv *)data;
3875 struct bttv_buffer_set old,new;
3876 struct bttv_buffer *ovbi;
3877 struct bttv_buffer *item;
3878 unsigned long flags;
3879
3880 if (bttv_verbose) {
3881 pr_info("%d: timeout: drop=%d irq=%d/%d, risc=%08x, ",
3882 btv->c.nr, btv->framedrop, btv->irq_me, btv->irq_total,
3883 btread(BT848_RISC_COUNT));
3884 bttv_print_irqbits(btread(BT848_INT_STAT),0);
3885 pr_cont("\n");
3886 }
3887
3888 spin_lock_irqsave(&btv->s_lock,flags);
3889
3890 /* deactivate stuff */
3891 memset(&new,0,sizeof(new));
3892 old = btv->curr;
3893 ovbi = btv->cvbi;
3894 btv->curr = new;
3895 btv->cvbi = NULL;
3896 btv->loop_irq = 0;
3897 bttv_buffer_activate_video(btv, &new);
3898 bttv_buffer_activate_vbi(btv, NULL);
3899 bttv_set_dma(btv, 0);
3900
3901 /* wake up */
3902 bttv_irq_wakeup_video(btv, &old, &new, VIDEOBUF_ERROR);
3903 bttv_irq_wakeup_vbi(btv, ovbi, VIDEOBUF_ERROR);
3904
3905 /* cancel all outstanding capture / vbi requests */
3906 while (!list_empty(&btv->capture)) {
3907 item = list_entry(btv->capture.next, struct bttv_buffer, vb.queue);
3908 list_del(&item->vb.queue);
3909 item->vb.state = VIDEOBUF_ERROR;
3910 wake_up(&item->vb.done);
3911 }
3912 while (!list_empty(&btv->vcapture)) {
3913 item = list_entry(btv->vcapture.next, struct bttv_buffer, vb.queue);
3914 list_del(&item->vb.queue);
3915 item->vb.state = VIDEOBUF_ERROR;
3916 wake_up(&item->vb.done);
3917 }
3918
3919 btv->errors++;
3920 spin_unlock_irqrestore(&btv->s_lock,flags);
3921 }
3922
3923 static void
3924 bttv_irq_wakeup_top(struct bttv *btv)
3925 {
3926 struct bttv_buffer *wakeup = btv->curr.top;
3927
3928 if (NULL == wakeup)
3929 return;
3930
3931 spin_lock(&btv->s_lock);
3932 btv->curr.top_irq = 0;
3933 btv->curr.top = NULL;
3934 bttv_risc_hook(btv, RISC_SLOT_O_FIELD, NULL, 0);
3935
3936 do_gettimeofday(&wakeup->vb.ts);
3937 wakeup->vb.field_count = btv->field_count;
3938 wakeup->vb.state = VIDEOBUF_DONE;
3939 wake_up(&wakeup->vb.done);
3940 spin_unlock(&btv->s_lock);
3941 }
3942
3943 static inline int is_active(struct btcx_riscmem *risc, u32 rc)
3944 {
3945 if (rc < risc->dma)
3946 return 0;
3947 if (rc > risc->dma + risc->size)
3948 return 0;
3949 return 1;
3950 }
3951
3952 static void
3953 bttv_irq_switch_video(struct bttv *btv)
3954 {
3955 struct bttv_buffer_set new;
3956 struct bttv_buffer_set old;
3957 dma_addr_t rc;
3958
3959 spin_lock(&btv->s_lock);
3960
3961 /* new buffer set */
3962 bttv_irq_next_video(btv, &new);
3963 rc = btread(BT848_RISC_COUNT);
3964 if ((btv->curr.top && is_active(&btv->curr.top->top, rc)) ||
3965 (btv->curr.bottom && is_active(&btv->curr.bottom->bottom, rc))) {
3966 btv->framedrop++;
3967 if (debug_latency)
3968 bttv_irq_debug_low_latency(btv, rc);
3969 spin_unlock(&btv->s_lock);
3970 return;
3971 }
3972
3973 /* switch over */
3974 old = btv->curr;
3975 btv->curr = new;
3976 btv->loop_irq &= ~1;
3977 bttv_buffer_activate_video(btv, &new);
3978 bttv_set_dma(btv, 0);
3979
3980 /* switch input */
3981 if (UNSET != btv->new_input) {
3982 video_mux(btv,btv->new_input);
3983 btv->new_input = UNSET;
3984 }
3985
3986 /* wake up finished buffers */
3987 bttv_irq_wakeup_video(btv, &old, &new, VIDEOBUF_DONE);
3988 spin_unlock(&btv->s_lock);
3989 }
3990
3991 static void
3992 bttv_irq_switch_vbi(struct bttv *btv)
3993 {
3994 struct bttv_buffer *new = NULL;
3995 struct bttv_buffer *old;
3996 u32 rc;
3997
3998 spin_lock(&btv->s_lock);
3999
4000 if (!list_empty(&btv->vcapture))
4001 new = list_entry(btv->vcapture.next, struct bttv_buffer, vb.queue);
4002 old = btv->cvbi;
4003
4004 rc = btread(BT848_RISC_COUNT);
4005 if (NULL != old && (is_active(&old->top, rc) ||
4006 is_active(&old->bottom, rc))) {
4007 btv->framedrop++;
4008 if (debug_latency)
4009 bttv_irq_debug_low_latency(btv, rc);
4010 spin_unlock(&btv->s_lock);
4011 return;
4012 }
4013
4014 /* switch */
4015 btv->cvbi = new;
4016 btv->loop_irq &= ~4;
4017 bttv_buffer_activate_vbi(btv, new);
4018 bttv_set_dma(btv, 0);
4019
4020 bttv_irq_wakeup_vbi(btv, old, VIDEOBUF_DONE);
4021 spin_unlock(&btv->s_lock);
4022 }
4023
4024 static irqreturn_t bttv_irq(int irq, void *dev_id)
4025 {
4026 u32 stat,astat;
4027 u32 dstat;
4028 int count;
4029 struct bttv *btv;
4030 int handled = 0;
4031
4032 btv=(struct bttv *)dev_id;
4033
4034 count=0;
4035 while (1) {
4036 /* get/clear interrupt status bits */
4037 stat=btread(BT848_INT_STAT);
4038 astat=stat&btread(BT848_INT_MASK);
4039 if (!astat)
4040 break;
4041 handled = 1;
4042 btwrite(stat,BT848_INT_STAT);
4043
4044 /* get device status bits */
4045 dstat=btread(BT848_DSTATUS);
4046
4047 if (irq_debug) {
4048 pr_debug("%d: irq loop=%d fc=%d riscs=%x, riscc=%08x, ",
4049 btv->c.nr, count, btv->field_count,
4050 stat>>28, btread(BT848_RISC_COUNT));
4051 bttv_print_irqbits(stat,astat);
4052 if (stat & BT848_INT_HLOCK)
4053 pr_cont(" HLOC => %s",
4054 dstat & BT848_DSTATUS_HLOC
4055 ? "yes" : "no");
4056 if (stat & BT848_INT_VPRES)
4057 pr_cont(" PRES => %s",
4058 dstat & BT848_DSTATUS_PRES
4059 ? "yes" : "no");
4060 if (stat & BT848_INT_FMTCHG)
4061 pr_cont(" NUML => %s",
4062 dstat & BT848_DSTATUS_NUML
4063 ? "625" : "525");
4064 pr_cont("\n");
4065 }
4066
4067 if (astat&BT848_INT_VSYNC)
4068 btv->field_count++;
4069
4070 if ((astat & BT848_INT_GPINT) && btv->remote) {
4071 bttv_input_irq(btv);
4072 }
4073
4074 if (astat & BT848_INT_I2CDONE) {
4075 btv->i2c_done = stat;
4076 wake_up(&btv->i2c_queue);
4077 }
4078
4079 if ((astat & BT848_INT_RISCI) && (stat & (4<<28)))
4080 bttv_irq_switch_vbi(btv);
4081
4082 if ((astat & BT848_INT_RISCI) && (stat & (2<<28)))
4083 bttv_irq_wakeup_top(btv);
4084
4085 if ((astat & BT848_INT_RISCI) && (stat & (1<<28)))
4086 bttv_irq_switch_video(btv);
4087
4088 if ((astat & BT848_INT_HLOCK) && btv->opt_automute)
4089 audio_mute(btv, btv->mute); /* trigger automute */
4090
4091 if (astat & (BT848_INT_SCERR|BT848_INT_OCERR)) {
4092 pr_info("%d: %s%s @ %08x,",
4093 btv->c.nr,
4094 (astat & BT848_INT_SCERR) ? "SCERR" : "",
4095 (astat & BT848_INT_OCERR) ? "OCERR" : "",
4096 btread(BT848_RISC_COUNT));
4097 bttv_print_irqbits(stat,astat);
4098 pr_cont("\n");
4099 if (bttv_debug)
4100 bttv_print_riscaddr(btv);
4101 }
4102 if (fdsr && astat & BT848_INT_FDSR) {
4103 pr_info("%d: FDSR @ %08x\n",
4104 btv->c.nr, btread(BT848_RISC_COUNT));
4105 if (bttv_debug)
4106 bttv_print_riscaddr(btv);
4107 }
4108
4109 count++;
4110 if (count > 4) {
4111
4112 if (count > 8 || !(astat & BT848_INT_GPINT)) {
4113 btwrite(0, BT848_INT_MASK);
4114
4115 pr_err("%d: IRQ lockup, cleared int mask [",
4116 btv->c.nr);
4117 } else {
4118 pr_err("%d: IRQ lockup, clearing GPINT from int mask [",
4119 btv->c.nr);
4120
4121 btwrite(btread(BT848_INT_MASK) & (-1 ^ BT848_INT_GPINT),
4122 BT848_INT_MASK);
4123 };
4124
4125 bttv_print_irqbits(stat,astat);
4126
4127 pr_cont("]\n");
4128 }
4129 }
4130 btv->irq_total++;
4131 if (handled)
4132 btv->irq_me++;
4133 return IRQ_RETVAL(handled);
4134 }
4135
4136
4137 /* ----------------------------------------------------------------------- */
4138 /* initialitation */
4139
4140 static struct video_device *vdev_init(struct bttv *btv,
4141 const struct video_device *template,
4142 const char *type_name)
4143 {
4144 struct video_device *vfd;
4145
4146 vfd = video_device_alloc();
4147 if (NULL == vfd)
4148 return NULL;
4149 *vfd = *template;
4150 vfd->v4l2_dev = &btv->c.v4l2_dev;
4151 vfd->release = video_device_release;
4152 vfd->debug = bttv_debug;
4153 video_set_drvdata(vfd, btv);
4154 snprintf(vfd->name, sizeof(vfd->name), "BT%d%s %s (%s)",
4155 btv->id, (btv->id==848 && btv->revision==0x12) ? "A" : "",
4156 type_name, bttv_tvcards[btv->c.type].name);
4157 return vfd;
4158 }
4159
4160 static void bttv_unregister_video(struct bttv *btv)
4161 {
4162 if (btv->video_dev) {
4163 if (video_is_registered(btv->video_dev))
4164 video_unregister_device(btv->video_dev);
4165 else
4166 video_device_release(btv->video_dev);
4167 btv->video_dev = NULL;
4168 }
4169 if (btv->vbi_dev) {
4170 if (video_is_registered(btv->vbi_dev))
4171 video_unregister_device(btv->vbi_dev);
4172 else
4173 video_device_release(btv->vbi_dev);
4174 btv->vbi_dev = NULL;
4175 }
4176 if (btv->radio_dev) {
4177 if (video_is_registered(btv->radio_dev))
4178 video_unregister_device(btv->radio_dev);
4179 else
4180 video_device_release(btv->radio_dev);
4181 btv->radio_dev = NULL;
4182 }
4183 }
4184
4185 /* register video4linux devices */
4186 static int __devinit bttv_register_video(struct bttv *btv)
4187 {
4188 if (no_overlay > 0)
4189 pr_notice("Overlay support disabled\n");
4190
4191 /* video */
4192 btv->video_dev = vdev_init(btv, &bttv_video_template, "video");
4193
4194 if (NULL == btv->video_dev)
4195 goto err;
4196 if (video_register_device(btv->video_dev, VFL_TYPE_GRABBER,
4197 video_nr[btv->c.nr]) < 0)
4198 goto err;
4199 pr_info("%d: registered device %s\n",
4200 btv->c.nr, video_device_node_name(btv->video_dev));
4201 if (device_create_file(&btv->video_dev->dev,
4202 &dev_attr_card)<0) {
4203 pr_err("%d: device_create_file 'card' failed\n", btv->c.nr);
4204 goto err;
4205 }
4206
4207 /* vbi */
4208 btv->vbi_dev = vdev_init(btv, &bttv_video_template, "vbi");
4209
4210 if (NULL == btv->vbi_dev)
4211 goto err;
4212 if (video_register_device(btv->vbi_dev, VFL_TYPE_VBI,
4213 vbi_nr[btv->c.nr]) < 0)
4214 goto err;
4215 pr_info("%d: registered device %s\n",
4216 btv->c.nr, video_device_node_name(btv->vbi_dev));
4217
4218 if (!btv->has_radio)
4219 return 0;
4220 /* radio */
4221 btv->radio_dev = vdev_init(btv, &radio_template, "radio");
4222 if (NULL == btv->radio_dev)
4223 goto err;
4224 if (video_register_device(btv->radio_dev, VFL_TYPE_RADIO,
4225 radio_nr[btv->c.nr]) < 0)
4226 goto err;
4227 pr_info("%d: registered device %s\n",
4228 btv->c.nr, video_device_node_name(btv->radio_dev));
4229
4230 /* all done */
4231 return 0;
4232
4233 err:
4234 bttv_unregister_video(btv);
4235 return -1;
4236 }
4237
4238
4239 /* on OpenFirmware machines (PowerMac at least), PCI memory cycle */
4240 /* response on cards with no firmware is not enabled by OF */
4241 static void pci_set_command(struct pci_dev *dev)
4242 {
4243 #if defined(__powerpc__)
4244 unsigned int cmd;
4245
4246 pci_read_config_dword(dev, PCI_COMMAND, &cmd);
4247 cmd = (cmd | PCI_COMMAND_MEMORY );
4248 pci_write_config_dword(dev, PCI_COMMAND, cmd);
4249 #endif
4250 }
4251
4252 static int __devinit bttv_probe(struct pci_dev *dev,
4253 const struct pci_device_id *pci_id)
4254 {
4255 int result;
4256 unsigned char lat;
4257 struct bttv *btv;
4258
4259 if (bttv_num == BTTV_MAX)
4260 return -ENOMEM;
4261 pr_info("Bt8xx card found (%d)\n", bttv_num);
4262 bttvs[bttv_num] = btv = kzalloc(sizeof(*btv), GFP_KERNEL);
4263 if (btv == NULL) {
4264 pr_err("out of memory\n");
4265 return -ENOMEM;
4266 }
4267 btv->c.nr = bttv_num;
4268 snprintf(btv->c.v4l2_dev.name, sizeof(btv->c.v4l2_dev.name),
4269 "bttv%d", btv->c.nr);
4270
4271 /* initialize structs / fill in defaults */
4272 mutex_init(&btv->lock);
4273 spin_lock_init(&btv->s_lock);
4274 spin_lock_init(&btv->gpio_lock);
4275 init_waitqueue_head(&btv->i2c_queue);
4276 INIT_LIST_HEAD(&btv->c.subs);
4277 INIT_LIST_HEAD(&btv->capture);
4278 INIT_LIST_HEAD(&btv->vcapture);
4279 v4l2_prio_init(&btv->prio);
4280
4281 init_timer(&btv->timeout);
4282 btv->timeout.function = bttv_irq_timeout;
4283 btv->timeout.data = (unsigned long)btv;
4284
4285 btv->i2c_rc = -1;
4286 btv->tuner_type = UNSET;
4287 btv->new_input = UNSET;
4288 btv->has_radio=radio[btv->c.nr];
4289
4290 /* pci stuff (init, get irq/mmio, ... */
4291 btv->c.pci = dev;
4292 btv->id = dev->device;
4293 if (pci_enable_device(dev)) {
4294 pr_warn("%d: Can't enable device\n", btv->c.nr);
4295 return -EIO;
4296 }
4297 if (pci_set_dma_mask(dev, DMA_BIT_MASK(32))) {
4298 pr_warn("%d: No suitable DMA available\n", btv->c.nr);
4299 return -EIO;
4300 }
4301 if (!request_mem_region(pci_resource_start(dev,0),
4302 pci_resource_len(dev,0),
4303 btv->c.v4l2_dev.name)) {
4304 pr_warn("%d: can't request iomem (0x%llx)\n",
4305 btv->c.nr,
4306 (unsigned long long)pci_resource_start(dev, 0));
4307 return -EBUSY;
4308 }
4309 pci_set_master(dev);
4310 pci_set_command(dev);
4311
4312 result = v4l2_device_register(&dev->dev, &btv->c.v4l2_dev);
4313 if (result < 0) {
4314 pr_warn("%d: v4l2_device_register() failed\n", btv->c.nr);
4315 goto fail0;
4316 }
4317
4318 btv->revision = dev->revision;
4319 pci_read_config_byte(dev, PCI_LATENCY_TIMER, &lat);
4320 pr_info("%d: Bt%d (rev %d) at %s, irq: %d, latency: %d, mmio: 0x%llx\n",
4321 bttv_num, btv->id, btv->revision, pci_name(dev),
4322 btv->c.pci->irq, lat,
4323 (unsigned long long)pci_resource_start(dev, 0));
4324 schedule();
4325
4326 btv->bt848_mmio = ioremap(pci_resource_start(dev, 0), 0x1000);
4327 if (NULL == btv->bt848_mmio) {
4328 pr_err("%d: ioremap() failed\n", btv->c.nr);
4329 result = -EIO;
4330 goto fail1;
4331 }
4332
4333 /* identify card */
4334 bttv_idcard(btv);
4335
4336 /* disable irqs, register irq handler */
4337 btwrite(0, BT848_INT_MASK);
4338 result = request_irq(btv->c.pci->irq, bttv_irq,
4339 IRQF_SHARED | IRQF_DISABLED, btv->c.v4l2_dev.name, (void *)btv);
4340 if (result < 0) {
4341 pr_err("%d: can't get IRQ %d\n",
4342 bttv_num, btv->c.pci->irq);
4343 goto fail1;
4344 }
4345
4346 if (0 != bttv_handle_chipset(btv)) {
4347 result = -EIO;
4348 goto fail2;
4349 }
4350
4351 /* init options from insmod args */
4352 btv->opt_combfilter = combfilter;
4353 btv->opt_lumafilter = lumafilter;
4354 btv->opt_automute = automute;
4355 btv->opt_chroma_agc = chroma_agc;
4356 btv->opt_adc_crush = adc_crush;
4357 btv->opt_vcr_hack = vcr_hack;
4358 btv->opt_whitecrush_upper = whitecrush_upper;
4359 btv->opt_whitecrush_lower = whitecrush_lower;
4360 btv->opt_uv_ratio = uv_ratio;
4361 btv->opt_full_luma_range = full_luma_range;
4362 btv->opt_coring = coring;
4363
4364 /* fill struct bttv with some useful defaults */
4365 btv->init.btv = btv;
4366 btv->init.ov.w.width = 320;
4367 btv->init.ov.w.height = 240;
4368 btv->init.fmt = format_by_fourcc(V4L2_PIX_FMT_BGR24);
4369 btv->init.width = 320;
4370 btv->init.height = 240;
4371 btv->input = 0;
4372
4373 /* initialize hardware */
4374 if (bttv_gpio)
4375 bttv_gpio_tracking(btv,"pre-init");
4376
4377 bttv_risc_init_main(btv);
4378 init_bt848(btv);
4379
4380 /* gpio */
4381 btwrite(0x00, BT848_GPIO_REG_INP);
4382 btwrite(0x00, BT848_GPIO_OUT_EN);
4383 if (bttv_verbose)
4384 bttv_gpio_tracking(btv,"init");
4385
4386 /* needs to be done before i2c is registered */
4387 bttv_init_card1(btv);
4388
4389 /* register i2c + gpio */
4390 init_bttv_i2c(btv);
4391
4392 /* some card-specific stuff (needs working i2c) */
4393 bttv_init_card2(btv);
4394 bttv_init_tuner(btv);
4395 init_irqreg(btv);
4396
4397 /* register video4linux + input */
4398 if (!bttv_tvcards[btv->c.type].no_video) {
4399 bttv_register_video(btv);
4400 bt848_bright(btv,32768);
4401 bt848_contrast(btv,32768);
4402 bt848_hue(btv,32768);
4403 bt848_sat(btv,32768);
4404 audio_mute(btv, 1);
4405 set_input(btv, 0, btv->tvnorm);
4406 bttv_crop_reset(&btv->crop[0], btv->tvnorm);
4407 btv->crop[1] = btv->crop[0]; /* current = default */
4408 disclaim_vbi_lines(btv);
4409 disclaim_video_lines(btv);
4410 }
4411
4412 /* add subdevices and autoload dvb-bt8xx if needed */
4413 if (bttv_tvcards[btv->c.type].has_dvb) {
4414 bttv_sub_add_device(&btv->c, "dvb");
4415 request_modules(btv);
4416 }
4417
4418 if (!disable_ir) {
4419 init_bttv_i2c_ir(btv);
4420 bttv_input_init(btv);
4421 }
4422
4423 /* everything is fine */
4424 bttv_num++;
4425 return 0;
4426
4427 fail2:
4428 free_irq(btv->c.pci->irq,btv);
4429
4430 fail1:
4431 v4l2_device_unregister(&btv->c.v4l2_dev);
4432
4433 fail0:
4434 if (btv->bt848_mmio)
4435 iounmap(btv->bt848_mmio);
4436 release_mem_region(pci_resource_start(btv->c.pci,0),
4437 pci_resource_len(btv->c.pci,0));
4438 return result;
4439 }
4440
4441 static void __devexit bttv_remove(struct pci_dev *pci_dev)
4442 {
4443 struct v4l2_device *v4l2_dev = pci_get_drvdata(pci_dev);
4444 struct bttv *btv = to_bttv(v4l2_dev);
4445
4446 if (bttv_verbose)
4447 pr_info("%d: unloading\n", btv->c.nr);
4448
4449 if (bttv_tvcards[btv->c.type].has_dvb)
4450 flush_request_modules(btv);
4451
4452 /* shutdown everything (DMA+IRQs) */
4453 btand(~15, BT848_GPIO_DMA_CTL);
4454 btwrite(0, BT848_INT_MASK);
4455 btwrite(~0x0, BT848_INT_STAT);
4456 btwrite(0x0, BT848_GPIO_OUT_EN);
4457 if (bttv_gpio)
4458 bttv_gpio_tracking(btv,"cleanup");
4459
4460 /* tell gpio modules we are leaving ... */
4461 btv->shutdown=1;
4462 bttv_input_fini(btv);
4463 bttv_sub_del_devices(&btv->c);
4464
4465 /* unregister i2c_bus + input */
4466 fini_bttv_i2c(btv);
4467
4468 /* unregister video4linux */
4469 bttv_unregister_video(btv);
4470
4471 /* free allocated memory */
4472 btcx_riscmem_free(btv->c.pci,&btv->main);
4473
4474 /* free ressources */
4475 free_irq(btv->c.pci->irq,btv);
4476 iounmap(btv->bt848_mmio);
4477 release_mem_region(pci_resource_start(btv->c.pci,0),
4478 pci_resource_len(btv->c.pci,0));
4479
4480 v4l2_device_unregister(&btv->c.v4l2_dev);
4481 bttvs[btv->c.nr] = NULL;
4482 kfree(btv);
4483
4484 return;
4485 }
4486
4487 #ifdef CONFIG_PM
4488 static int bttv_suspend(struct pci_dev *pci_dev, pm_message_t state)
4489 {
4490 struct v4l2_device *v4l2_dev = pci_get_drvdata(pci_dev);
4491 struct bttv *btv = to_bttv(v4l2_dev);
4492 struct bttv_buffer_set idle;
4493 unsigned long flags;
4494
4495 dprintk("%d: suspend %d\n", btv->c.nr, state.event);
4496
4497 /* stop dma + irqs */
4498 spin_lock_irqsave(&btv->s_lock,flags);
4499 memset(&idle, 0, sizeof(idle));
4500 btv->state.video = btv->curr;
4501 btv->state.vbi = btv->cvbi;
4502 btv->state.loop_irq = btv->loop_irq;
4503 btv->curr = idle;
4504 btv->loop_irq = 0;
4505 bttv_buffer_activate_video(btv, &idle);
4506 bttv_buffer_activate_vbi(btv, NULL);
4507 bttv_set_dma(btv, 0);
4508 btwrite(0, BT848_INT_MASK);
4509 spin_unlock_irqrestore(&btv->s_lock,flags);
4510
4511 /* save bt878 state */
4512 btv->state.gpio_enable = btread(BT848_GPIO_OUT_EN);
4513 btv->state.gpio_data = gpio_read();
4514
4515 /* save pci state */
4516 pci_save_state(pci_dev);
4517 if (0 != pci_set_power_state(pci_dev, pci_choose_state(pci_dev, state))) {
4518 pci_disable_device(pci_dev);
4519 btv->state.disabled = 1;
4520 }
4521 return 0;
4522 }
4523
4524 static int bttv_resume(struct pci_dev *pci_dev)
4525 {
4526 struct v4l2_device *v4l2_dev = pci_get_drvdata(pci_dev);
4527 struct bttv *btv = to_bttv(v4l2_dev);
4528 unsigned long flags;
4529 int err;
4530
4531 dprintk("%d: resume\n", btv->c.nr);
4532
4533 /* restore pci state */
4534 if (btv->state.disabled) {
4535 err=pci_enable_device(pci_dev);
4536 if (err) {
4537 pr_warn("%d: Can't enable device\n", btv->c.nr);
4538 return err;
4539 }
4540 btv->state.disabled = 0;
4541 }
4542 err=pci_set_power_state(pci_dev, PCI_D0);
4543 if (err) {
4544 pci_disable_device(pci_dev);
4545 pr_warn("%d: Can't enable device\n", btv->c.nr);
4546 btv->state.disabled = 1;
4547 return err;
4548 }
4549
4550 pci_restore_state(pci_dev);
4551
4552 /* restore bt878 state */
4553 bttv_reinit_bt848(btv);
4554 gpio_inout(0xffffff, btv->state.gpio_enable);
4555 gpio_write(btv->state.gpio_data);
4556
4557 /* restart dma */
4558 spin_lock_irqsave(&btv->s_lock,flags);
4559 btv->curr = btv->state.video;
4560 btv->cvbi = btv->state.vbi;
4561 btv->loop_irq = btv->state.loop_irq;
4562 bttv_buffer_activate_video(btv, &btv->curr);
4563 bttv_buffer_activate_vbi(btv, btv->cvbi);
4564 bttv_set_dma(btv, 0);
4565 spin_unlock_irqrestore(&btv->s_lock,flags);
4566 return 0;
4567 }
4568 #endif
4569
4570 static struct pci_device_id bttv_pci_tbl[] = {
4571 {PCI_VDEVICE(BROOKTREE, PCI_DEVICE_ID_BT848), 0},
4572 {PCI_VDEVICE(BROOKTREE, PCI_DEVICE_ID_BT849), 0},
4573 {PCI_VDEVICE(BROOKTREE, PCI_DEVICE_ID_BT878), 0},
4574 {PCI_VDEVICE(BROOKTREE, PCI_DEVICE_ID_BT879), 0},
4575 {PCI_VDEVICE(BROOKTREE, PCI_DEVICE_ID_FUSION879), 0},
4576 {0,}
4577 };
4578
4579 MODULE_DEVICE_TABLE(pci, bttv_pci_tbl);
4580
4581 static struct pci_driver bttv_pci_driver = {
4582 .name = "bttv",
4583 .id_table = bttv_pci_tbl,
4584 .probe = bttv_probe,
4585 .remove = __devexit_p(bttv_remove),
4586 #ifdef CONFIG_PM
4587 .suspend = bttv_suspend,
4588 .resume = bttv_resume,
4589 #endif
4590 };
4591
4592 static int __init bttv_init_module(void)
4593 {
4594 int ret;
4595
4596 bttv_num = 0;
4597
4598 pr_info("driver version %s loaded\n", BTTV_VERSION);
4599 if (gbuffers < 2 || gbuffers > VIDEO_MAX_FRAME)
4600 gbuffers = 2;
4601 if (gbufsize > BTTV_MAX_FBUF)
4602 gbufsize = BTTV_MAX_FBUF;
4603 gbufsize = (gbufsize + PAGE_SIZE - 1) & PAGE_MASK;
4604 if (bttv_verbose)
4605 pr_info("using %d buffers with %dk (%d pages) each for capture\n",
4606 gbuffers, gbufsize >> 10, gbufsize >> PAGE_SHIFT);
4607
4608 bttv_check_chipset();
4609
4610 ret = bus_register(&bttv_sub_bus_type);
4611 if (ret < 0) {
4612 pr_warn("bus_register error: %d\n", ret);
4613 return ret;
4614 }
4615 ret = pci_register_driver(&bttv_pci_driver);
4616 if (ret < 0)
4617 bus_unregister(&bttv_sub_bus_type);
4618
4619 return ret;
4620 }
4621
4622 static void __exit bttv_cleanup_module(void)
4623 {
4624 pci_unregister_driver(&bttv_pci_driver);
4625 bus_unregister(&bttv_sub_bus_type);
4626 }
4627
4628 module_init(bttv_init_module);
4629 module_exit(bttv_cleanup_module);
4630
4631 /*
4632 * Local variables:
4633 * c-basic-offset: 8
4634 * End:
4635 */