3 bttv - Bt848 frame grabber driver
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>
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>
13 (c) 2005-2006 Nickolay V. Shmyrev <nshmyrev@yandex.ru>
15 Fixes to be fully V4L2 compliant by
16 (c) 2006 Mauro Carvalho Chehab <mchehab@infradead.org>
18 Cropping and overscan support
19 Copyright (C) 2005, 2006 Michael H. Schimek <mschimek@gmx.at>
20 Sponsored by OPQ Systems AB
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.
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.
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.
37 #include <linux/init.h>
38 #include <linux/module.h>
39 #include <linux/delay.h>
40 #include <linux/errno.h>
42 #include <linux/kernel.h>
43 #include <linux/sched.h>
44 #include <linux/interrupt.h>
45 #include <linux/kdev_t.h>
47 #include <media/v4l2-common.h>
48 #include <media/tvaudio.h>
49 #include <media/msp3400.h>
51 #include <linux/dma-mapping.h>
54 #include <asm/byteorder.h>
56 #include <media/rds.h>
59 unsigned int bttv_num; /* number of Bt848s in use */
60 struct bttv bttvs[BTTV_MAX];
62 unsigned int bttv_debug;
63 unsigned int bttv_verbose = 1;
64 unsigned int bttv_gpio;
66 /* config variables */
68 static unsigned int bigendian=1;
70 static unsigned int bigendian;
72 static unsigned int radio[BTTV_MAX];
73 static unsigned int irq_debug;
74 static unsigned int gbuffers = 8;
75 static unsigned int gbufsize = 0x208000;
76 static unsigned int reset_crop = 1;
78 static int video_nr = -1;
79 static int radio_nr = -1;
80 static int vbi_nr = -1;
81 static int debug_latency;
83 static unsigned int fdsr;
86 static unsigned int combfilter;
87 static unsigned int lumafilter;
88 static unsigned int automute = 1;
89 static unsigned int chroma_agc;
90 static unsigned int adc_crush = 1;
91 static unsigned int whitecrush_upper = 0xCF;
92 static unsigned int whitecrush_lower = 0x7F;
93 static unsigned int vcr_hack;
94 static unsigned int irq_iswitch;
95 static unsigned int uv_ratio = 50;
96 static unsigned int full_luma_range;
97 static unsigned int coring;
98 extern int no_overlay;
100 /* API features (turn on/off stuff for testing) */
101 static unsigned int v4l2 = 1;
104 module_param(bttv_verbose, int, 0644);
105 module_param(bttv_gpio, int, 0644);
106 module_param(bttv_debug, int, 0644);
107 module_param(irq_debug, int, 0644);
108 module_param(debug_latency, int, 0644);
110 module_param(fdsr, int, 0444);
111 module_param(video_nr, int, 0444);
112 module_param(radio_nr, int, 0444);
113 module_param(vbi_nr, int, 0444);
114 module_param(gbuffers, int, 0444);
115 module_param(gbufsize, int, 0444);
116 module_param(reset_crop, int, 0444);
118 module_param(v4l2, int, 0644);
119 module_param(bigendian, int, 0644);
120 module_param(irq_iswitch, int, 0644);
121 module_param(combfilter, int, 0444);
122 module_param(lumafilter, int, 0444);
123 module_param(automute, int, 0444);
124 module_param(chroma_agc, int, 0444);
125 module_param(adc_crush, int, 0444);
126 module_param(whitecrush_upper, int, 0444);
127 module_param(whitecrush_lower, int, 0444);
128 module_param(vcr_hack, int, 0444);
129 module_param(uv_ratio, int, 0444);
130 module_param(full_luma_range, int, 0444);
131 module_param(coring, int, 0444);
133 module_param_array(radio, int, NULL, 0444);
135 MODULE_PARM_DESC(radio,"The TV card supports radio, default is 0 (no)");
136 MODULE_PARM_DESC(bigendian,"byte order of the framebuffer, default is native endian");
137 MODULE_PARM_DESC(bttv_verbose,"verbose startup messages, default is 1 (yes)");
138 MODULE_PARM_DESC(bttv_gpio,"log gpio changes, default is 0 (no)");
139 MODULE_PARM_DESC(bttv_debug,"debug messages, default is 0 (no)");
140 MODULE_PARM_DESC(irq_debug,"irq handler debug messages, default is 0 (no)");
141 MODULE_PARM_DESC(gbuffers,"number of capture buffers. range 2-32, default 8");
142 MODULE_PARM_DESC(gbufsize,"size of the capture buffers, default is 0x208000");
143 MODULE_PARM_DESC(reset_crop,"reset cropping parameters at open(), default "
144 "is 1 (yes) for compatibility with older applications");
145 MODULE_PARM_DESC(automute,"mute audio on bad/missing video signal, default is 1 (yes)");
146 MODULE_PARM_DESC(chroma_agc,"enables the AGC of chroma signal, default is 0 (no)");
147 MODULE_PARM_DESC(adc_crush,"enables the luminance ADC crush, default is 1 (yes)");
148 MODULE_PARM_DESC(whitecrush_upper,"sets the white crush upper value, default is 207");
149 MODULE_PARM_DESC(whitecrush_lower,"sets the white crush lower value, default is 127");
150 MODULE_PARM_DESC(vcr_hack,"enables the VCR hack (improves synch on poor VCR tapes), default is 0 (no)");
151 MODULE_PARM_DESC(irq_iswitch,"switch inputs in irq handler");
152 MODULE_PARM_DESC(uv_ratio,"ratio between u and v gains, default is 50");
153 MODULE_PARM_DESC(full_luma_range,"use the full luma range, default is 0 (no)");
154 MODULE_PARM_DESC(coring,"set the luma coring level, default is 0 (no)");
156 MODULE_DESCRIPTION("bttv - v4l/v4l2 driver module for bt848/878 based cards");
157 MODULE_AUTHOR("Ralph Metzler & Marcus Metzler & Gerd Knorr");
158 MODULE_LICENSE("GPL");
160 /* ----------------------------------------------------------------------- */
163 static ssize_t show_card(struct device *cd,
164 struct device_attribute *attr, char *buf)
166 struct video_device *vfd = container_of(cd, struct video_device, class_dev);
167 struct bttv *btv = dev_get_drvdata(vfd->dev);
168 return sprintf(buf, "%d\n", btv ? btv->c.type : UNSET);
170 static DEVICE_ATTR(card, S_IRUGO, show_card, NULL);
172 /* ----------------------------------------------------------------------- */
173 /* dvb auto-load setup */
174 #if defined(CONFIG_MODULES) && defined(MODULE)
175 static void request_module_async(struct work_struct *work)
177 request_module("dvb-bt8xx");
180 static void request_modules(struct bttv *dev)
182 INIT_WORK(&dev->request_module_wk, request_module_async);
183 schedule_work(&dev->request_module_wk);
186 #define request_modules(dev)
187 #endif /* CONFIG_MODULES */
190 /* ----------------------------------------------------------------------- */
193 /* special timing tables from conexant... */
194 static u8 SRAM_Table[][60] =
196 /* PAL digital input over GPIO[7:0] */
198 45, // 45 bytes following
199 0x36,0x11,0x01,0x00,0x90,0x02,0x05,0x10,0x04,0x16,
200 0x12,0x05,0x11,0x00,0x04,0x12,0xC0,0x00,0x31,0x00,
201 0x06,0x51,0x08,0x03,0x89,0x08,0x07,0xC0,0x44,0x00,
202 0x81,0x01,0x01,0xA9,0x0D,0x02,0x02,0x50,0x03,0x37,
203 0x37,0x00,0xAF,0x21,0x00
205 /* NTSC digital input over GPIO[7:0] */
207 51, // 51 bytes following
208 0x0C,0xC0,0x00,0x00,0x90,0x02,0x03,0x10,0x03,0x06,
209 0x10,0x04,0x12,0x12,0x05,0x02,0x13,0x04,0x19,0x00,
210 0x04,0x39,0x00,0x06,0x59,0x08,0x03,0x83,0x08,0x07,
211 0x03,0x50,0x00,0xC0,0x40,0x00,0x86,0x01,0x01,0xA6,
212 0x0D,0x02,0x03,0x11,0x01,0x05,0x37,0x00,0xAC,0x21,
215 // TGB_NTSC392 // quartzsight
216 // This table has been modified to be used for Fusion Rev D
218 0x2A, // size of table = 42
219 0x06, 0x08, 0x04, 0x0a, 0xc0, 0x00, 0x18, 0x08, 0x03, 0x24,
220 0x08, 0x07, 0x02, 0x90, 0x02, 0x08, 0x10, 0x04, 0x0c, 0x10,
221 0x05, 0x2c, 0x11, 0x04, 0x55, 0x48, 0x00, 0x05, 0x50, 0x00,
222 0xbf, 0x0c, 0x02, 0x2f, 0x3d, 0x00, 0x2f, 0x3f, 0x00, 0xc3,
227 /* minhdelayx1 first video pixel we can capture on a line and
228 hdelayx1 start of active video, both relative to rising edge of
229 /HRESET pulse (0H) in 1 / fCLKx1.
230 swidth width of active video and
231 totalwidth total line width, both in 1 / fCLKx1.
232 sqwidth total line width in square pixels.
233 vdelay start of active video in 2 * field lines relative to
234 trailing edge of /VRESET pulse (VDELAY register).
235 sheight height of active video in 2 * field lines.
236 videostart0 ITU-R frame line number of the line corresponding
237 to vdelay in the first field. */
238 #define CROPCAP(minhdelayx1, hdelayx1, swidth, totalwidth, sqwidth, \
239 vdelay, sheight, videostart0) \
240 .cropcap.bounds.left = minhdelayx1, \
241 /* * 2 because vertically we count field lines times two, */ \
242 /* e.g. 23 * 2 to 23 * 2 + 576 in PAL-BGHI defrect. */ \
243 .cropcap.bounds.top = (videostart0) * 2 - (vdelay) + MIN_VDELAY, \
244 /* 4 is a safety margin at the end of the line. */ \
245 .cropcap.bounds.width = (totalwidth) - (minhdelayx1) - 4, \
246 .cropcap.bounds.height = (sheight) + (vdelay) - MIN_VDELAY, \
247 .cropcap.defrect.left = hdelayx1, \
248 .cropcap.defrect.top = (videostart0) * 2, \
249 .cropcap.defrect.width = swidth, \
250 .cropcap.defrect.height = sheight, \
251 .cropcap.pixelaspect.numerator = totalwidth, \
252 .cropcap.pixelaspect.denominator = sqwidth,
254 const struct bttv_tvnorm bttv_tvnorms[] = {
256 /* max. active video is actually 922, but 924 is divisible by 4 and 3! */
257 /* actually, max active PAL with HSCALE=0 is 948, NTSC is 768 - nil */
259 .v4l2_id = V4L2_STD_PAL,
267 .iform = (BT848_IFORM_PAL_BDGHI|BT848_IFORM_XT1),
268 .scaledtwidth = 1135,
272 .vbipack = 255, /* min (2048 / 4, 0x1ff) & 0xff */
274 /* ITU-R frame line number of the first VBI line
275 we can capture, of the first and second field.
276 The last line is determined by cropcap.bounds. */
277 .vbistart = { 7, 320 },
278 CROPCAP(/* minhdelayx1 */ 68,
280 /* Should be (768 * 1135 + 944 / 2) / 944.
281 cropcap.defrect is used for image width
282 checks, so we keep the old value 924. */
284 /* totalwidth */ 1135,
288 /* videostart0 */ 23)
289 /* bt878 (and bt848?) can capture another
290 line below active video. */
291 .cropcap.bounds.height = (576 + 2) + 0x20 - 2,
293 .v4l2_id = V4L2_STD_NTSC_M | V4L2_STD_NTSC_M_KR,
301 .iform = (BT848_IFORM_NTSC|BT848_IFORM_XT0),
306 .vbipack = 144, /* min (1600 / 4, 0x1ff) & 0xff */
308 .vbistart = { 10, 273 },
309 CROPCAP(/* minhdelayx1 */ 68,
311 /* Should be (640 * 910 + 780 / 2) / 780? */
313 /* totalwidth */ 910,
317 /* videostart0 */ 23)
319 .v4l2_id = V4L2_STD_SECAM,
327 .iform = (BT848_IFORM_SECAM|BT848_IFORM_XT1),
328 .scaledtwidth = 1135,
333 .sram = 0, /* like PAL, correct? */
334 .vbistart = { 7, 320 },
335 CROPCAP(/* minhdelayx1 */ 68,
338 /* totalwidth */ 1135,
342 /* videostart0 */ 23)
344 .v4l2_id = V4L2_STD_PAL_Nc,
352 .iform = (BT848_IFORM_PAL_NC|BT848_IFORM_XT0),
359 .vbistart = { 7, 320 },
360 CROPCAP(/* minhdelayx1 */ 68,
362 /* swidth */ (640 * 910 + 780 / 2) / 780,
363 /* totalwidth */ 910,
367 /* videostart0 */ 23)
369 .v4l2_id = V4L2_STD_PAL_M,
377 .iform = (BT848_IFORM_PAL_M|BT848_IFORM_XT0),
384 .vbistart = { 10, 273 },
385 CROPCAP(/* minhdelayx1 */ 68,
387 /* swidth */ (640 * 910 + 780 / 2) / 780,
388 /* totalwidth */ 910,
392 /* videostart0 */ 23)
394 .v4l2_id = V4L2_STD_PAL_N,
402 .iform = (BT848_IFORM_PAL_N|BT848_IFORM_XT1),
409 .vbistart = { 7, 320 },
410 CROPCAP(/* minhdelayx1 */ 68,
412 /* swidth */ (768 * 1135 + 944 / 2) / 944,
413 /* totalwidth */ 1135,
417 /* videostart0 */ 23)
419 .v4l2_id = V4L2_STD_NTSC_M_JP,
427 .iform = (BT848_IFORM_NTSC_J|BT848_IFORM_XT0),
434 .vbistart = { 10, 273 },
435 CROPCAP(/* minhdelayx1 */ 68,
437 /* swidth */ (640 * 910 + 780 / 2) / 780,
438 /* totalwidth */ 910,
442 /* videostart0 */ 23)
444 /* that one hopefully works with the strange timing
445 * which video recorders produce when playing a NTSC
446 * tape on a PAL TV ... */
447 .v4l2_id = V4L2_STD_PAL_60,
455 .iform = (BT848_IFORM_PAL_BDGHI|BT848_IFORM_XT1),
456 .scaledtwidth = 1135,
463 .vbistart = { 10, 273 },
464 CROPCAP(/* minhdelayx1 */ 68,
467 /* totalwidth */ 1135,
471 /* videostart0 */ 23)
474 static const unsigned int BTTV_TVNORMS = ARRAY_SIZE(bttv_tvnorms);
476 /* ----------------------------------------------------------------------- */
478 packed pixel formats must come first */
479 static const struct bttv_format formats[] = {
481 .name = "8 bpp, gray",
482 .fourcc = V4L2_PIX_FMT_GREY,
483 .btformat = BT848_COLOR_FMT_Y8,
485 .flags = FORMAT_FLAGS_PACKED,
487 .name = "8 bpp, dithered color",
488 .fourcc = V4L2_PIX_FMT_HI240,
489 .btformat = BT848_COLOR_FMT_RGB8,
491 .flags = FORMAT_FLAGS_PACKED | FORMAT_FLAGS_DITHER,
493 .name = "15 bpp RGB, le",
494 .fourcc = V4L2_PIX_FMT_RGB555,
495 .btformat = BT848_COLOR_FMT_RGB15,
497 .flags = FORMAT_FLAGS_PACKED,
499 .name = "15 bpp RGB, be",
500 .fourcc = V4L2_PIX_FMT_RGB555X,
501 .btformat = BT848_COLOR_FMT_RGB15,
502 .btswap = 0x03, /* byteswap */
504 .flags = FORMAT_FLAGS_PACKED,
506 .name = "16 bpp RGB, le",
507 .fourcc = V4L2_PIX_FMT_RGB565,
508 .btformat = BT848_COLOR_FMT_RGB16,
510 .flags = FORMAT_FLAGS_PACKED,
512 .name = "16 bpp RGB, be",
513 .fourcc = V4L2_PIX_FMT_RGB565X,
514 .btformat = BT848_COLOR_FMT_RGB16,
515 .btswap = 0x03, /* byteswap */
517 .flags = FORMAT_FLAGS_PACKED,
519 .name = "24 bpp RGB, le",
520 .fourcc = V4L2_PIX_FMT_BGR24,
521 .btformat = BT848_COLOR_FMT_RGB24,
523 .flags = FORMAT_FLAGS_PACKED,
525 .name = "32 bpp RGB, le",
526 .fourcc = V4L2_PIX_FMT_BGR32,
527 .btformat = BT848_COLOR_FMT_RGB32,
529 .flags = FORMAT_FLAGS_PACKED,
531 .name = "32 bpp RGB, be",
532 .fourcc = V4L2_PIX_FMT_RGB32,
533 .btformat = BT848_COLOR_FMT_RGB32,
534 .btswap = 0x0f, /* byte+word swap */
536 .flags = FORMAT_FLAGS_PACKED,
538 .name = "4:2:2, packed, YUYV",
539 .fourcc = V4L2_PIX_FMT_YUYV,
540 .btformat = BT848_COLOR_FMT_YUY2,
542 .flags = FORMAT_FLAGS_PACKED,
544 .name = "4:2:2, packed, YUYV",
545 .fourcc = V4L2_PIX_FMT_YUYV,
546 .btformat = BT848_COLOR_FMT_YUY2,
548 .flags = FORMAT_FLAGS_PACKED,
550 .name = "4:2:2, packed, UYVY",
551 .fourcc = V4L2_PIX_FMT_UYVY,
552 .btformat = BT848_COLOR_FMT_YUY2,
553 .btswap = 0x03, /* byteswap */
555 .flags = FORMAT_FLAGS_PACKED,
557 .name = "4:2:2, planar, Y-Cb-Cr",
558 .fourcc = V4L2_PIX_FMT_YUV422P,
559 .btformat = BT848_COLOR_FMT_YCrCb422,
561 .flags = FORMAT_FLAGS_PLANAR,
565 .name = "4:2:0, planar, Y-Cb-Cr",
566 .fourcc = V4L2_PIX_FMT_YUV420,
567 .btformat = BT848_COLOR_FMT_YCrCb422,
569 .flags = FORMAT_FLAGS_PLANAR,
573 .name = "4:2:0, planar, Y-Cr-Cb",
574 .fourcc = V4L2_PIX_FMT_YVU420,
575 .btformat = BT848_COLOR_FMT_YCrCb422,
577 .flags = FORMAT_FLAGS_PLANAR | FORMAT_FLAGS_CrCb,
581 .name = "4:1:1, planar, Y-Cb-Cr",
582 .fourcc = V4L2_PIX_FMT_YUV411P,
583 .btformat = BT848_COLOR_FMT_YCrCb411,
585 .flags = FORMAT_FLAGS_PLANAR,
589 .name = "4:1:0, planar, Y-Cb-Cr",
590 .fourcc = V4L2_PIX_FMT_YUV410,
591 .btformat = BT848_COLOR_FMT_YCrCb411,
593 .flags = FORMAT_FLAGS_PLANAR,
597 .name = "4:1:0, planar, Y-Cr-Cb",
598 .fourcc = V4L2_PIX_FMT_YVU410,
599 .btformat = BT848_COLOR_FMT_YCrCb411,
601 .flags = FORMAT_FLAGS_PLANAR | FORMAT_FLAGS_CrCb,
605 .name = "raw scanlines",
607 .btformat = BT848_COLOR_FMT_RAW,
609 .flags = FORMAT_FLAGS_RAW,
612 static const unsigned int FORMATS = ARRAY_SIZE(formats);
614 /* ----------------------------------------------------------------------- */
616 #define V4L2_CID_PRIVATE_CHROMA_AGC (V4L2_CID_PRIVATE_BASE + 0)
617 #define V4L2_CID_PRIVATE_COMBFILTER (V4L2_CID_PRIVATE_BASE + 1)
618 #define V4L2_CID_PRIVATE_AUTOMUTE (V4L2_CID_PRIVATE_BASE + 2)
619 #define V4L2_CID_PRIVATE_LUMAFILTER (V4L2_CID_PRIVATE_BASE + 3)
620 #define V4L2_CID_PRIVATE_AGC_CRUSH (V4L2_CID_PRIVATE_BASE + 4)
621 #define V4L2_CID_PRIVATE_VCR_HACK (V4L2_CID_PRIVATE_BASE + 5)
622 #define V4L2_CID_PRIVATE_WHITECRUSH_UPPER (V4L2_CID_PRIVATE_BASE + 6)
623 #define V4L2_CID_PRIVATE_WHITECRUSH_LOWER (V4L2_CID_PRIVATE_BASE + 7)
624 #define V4L2_CID_PRIVATE_UV_RATIO (V4L2_CID_PRIVATE_BASE + 8)
625 #define V4L2_CID_PRIVATE_FULL_LUMA_RANGE (V4L2_CID_PRIVATE_BASE + 9)
626 #define V4L2_CID_PRIVATE_CORING (V4L2_CID_PRIVATE_BASE + 10)
627 #define V4L2_CID_PRIVATE_LASTP1 (V4L2_CID_PRIVATE_BASE + 11)
629 static const struct v4l2_queryctrl no_ctl = {
631 .flags = V4L2_CTRL_FLAG_DISABLED,
633 static const struct v4l2_queryctrl bttv_ctls[] = {
636 .id = V4L2_CID_BRIGHTNESS,
637 .name = "Brightness",
641 .default_value = 32768,
642 .type = V4L2_CTRL_TYPE_INTEGER,
644 .id = V4L2_CID_CONTRAST,
649 .default_value = 32768,
650 .type = V4L2_CTRL_TYPE_INTEGER,
652 .id = V4L2_CID_SATURATION,
653 .name = "Saturation",
657 .default_value = 32768,
658 .type = V4L2_CTRL_TYPE_INTEGER,
665 .default_value = 32768,
666 .type = V4L2_CTRL_TYPE_INTEGER,
670 .id = V4L2_CID_AUDIO_MUTE,
674 .type = V4L2_CTRL_TYPE_BOOLEAN,
676 .id = V4L2_CID_AUDIO_VOLUME,
681 .default_value = 65535,
682 .type = V4L2_CTRL_TYPE_INTEGER,
684 .id = V4L2_CID_AUDIO_BALANCE,
689 .default_value = 32768,
690 .type = V4L2_CTRL_TYPE_INTEGER,
692 .id = V4L2_CID_AUDIO_BASS,
697 .default_value = 32768,
698 .type = V4L2_CTRL_TYPE_INTEGER,
700 .id = V4L2_CID_AUDIO_TREBLE,
705 .default_value = 32768,
706 .type = V4L2_CTRL_TYPE_INTEGER,
708 /* --- private --- */
710 .id = V4L2_CID_PRIVATE_CHROMA_AGC,
711 .name = "chroma agc",
714 .type = V4L2_CTRL_TYPE_BOOLEAN,
716 .id = V4L2_CID_PRIVATE_COMBFILTER,
717 .name = "combfilter",
720 .type = V4L2_CTRL_TYPE_BOOLEAN,
722 .id = V4L2_CID_PRIVATE_AUTOMUTE,
726 .type = V4L2_CTRL_TYPE_BOOLEAN,
728 .id = V4L2_CID_PRIVATE_LUMAFILTER,
729 .name = "luma decimation filter",
732 .type = V4L2_CTRL_TYPE_BOOLEAN,
734 .id = V4L2_CID_PRIVATE_AGC_CRUSH,
738 .type = V4L2_CTRL_TYPE_BOOLEAN,
740 .id = V4L2_CID_PRIVATE_VCR_HACK,
744 .type = V4L2_CTRL_TYPE_BOOLEAN,
746 .id = V4L2_CID_PRIVATE_WHITECRUSH_UPPER,
747 .name = "whitecrush upper",
751 .default_value = 0xCF,
752 .type = V4L2_CTRL_TYPE_INTEGER,
754 .id = V4L2_CID_PRIVATE_WHITECRUSH_LOWER,
755 .name = "whitecrush lower",
759 .default_value = 0x7F,
760 .type = V4L2_CTRL_TYPE_INTEGER,
762 .id = V4L2_CID_PRIVATE_UV_RATIO,
768 .type = V4L2_CTRL_TYPE_INTEGER,
770 .id = V4L2_CID_PRIVATE_FULL_LUMA_RANGE,
771 .name = "full luma range",
774 .type = V4L2_CTRL_TYPE_BOOLEAN,
776 .id = V4L2_CID_PRIVATE_CORING,
782 .type = V4L2_CTRL_TYPE_INTEGER,
789 static const struct v4l2_queryctrl *ctrl_by_id(int id)
793 for (i = 0; i < ARRAY_SIZE(bttv_ctls); i++)
794 if (bttv_ctls[i].id == id)
800 /* ----------------------------------------------------------------------- */
801 /* resource management */
804 RESOURCE_ allocated by freed by
806 VIDEO_READ bttv_read 1) bttv_read 2)
808 VIDEO_STREAM VIDIOC_STREAMON VIDIOC_STREAMOFF
809 VIDIOC_QBUF 1) bttv_release
812 OVERLAY VIDIOCCAPTURE on VIDIOCCAPTURE off
813 VIDIOC_OVERLAY on VIDIOC_OVERLAY off
816 VBI VIDIOC_STREAMON VIDIOC_STREAMOFF
817 VIDIOC_QBUF 1) bttv_release
818 bttv_read, bttv_poll 1) 4)
820 1) The resource must be allocated when we enter buffer prepare functions
821 and remain allocated while buffers are in the DMA queue.
822 2) This is a single frame read.
823 3) VIDIOC_S_FBUF and VIDIOC_S_FMT (OVERLAY) still work when
824 RESOURCE_OVERLAY is allocated.
825 4) This is a continuous read, implies VIDIOC_STREAMON.
827 Note this driver permits video input and standard changes regardless if
828 resources are allocated.
831 #define VBI_RESOURCES (RESOURCE_VBI)
832 #define VIDEO_RESOURCES (RESOURCE_VIDEO_READ | \
833 RESOURCE_VIDEO_STREAM | \
837 int check_alloc_btres(struct bttv *btv, struct bttv_fh *fh, int bit)
839 int xbits; /* mutual exclusive resources */
841 if (fh->resources & bit)
842 /* have it already allocated */
846 if (bit & (RESOURCE_VIDEO_READ | RESOURCE_VIDEO_STREAM))
847 xbits |= RESOURCE_VIDEO_READ | RESOURCE_VIDEO_STREAM;
850 mutex_lock(&btv->lock);
851 if (btv->resources & xbits) {
852 /* no, someone else uses it */
856 if ((bit & VIDEO_RESOURCES)
857 && 0 == (btv->resources & VIDEO_RESOURCES)) {
858 /* Do crop - use current, don't - use default parameters. */
859 __s32 top = btv->crop[!!fh->do_crop].rect.top;
861 if (btv->vbi_end > top)
864 /* We cannot capture the same line as video and VBI data.
865 Claim scan lines crop[].rect.top to bottom. */
866 btv->crop_start = top;
867 } else if (bit & VBI_RESOURCES) {
868 __s32 end = fh->vbi_fmt.end;
870 if (end > btv->crop_start)
873 /* Claim scan lines above fh->vbi_fmt.end. */
877 /* it's free, grab it */
878 fh->resources |= bit;
879 btv->resources |= bit;
880 mutex_unlock(&btv->lock);
884 mutex_unlock(&btv->lock);
889 int check_btres(struct bttv_fh *fh, int bit)
891 return (fh->resources & bit);
895 int locked_btres(struct bttv *btv, int bit)
897 return (btv->resources & bit);
900 /* Call with btv->lock down. */
902 disclaim_vbi_lines(struct bttv *btv)
907 /* Call with btv->lock down. */
909 disclaim_video_lines(struct bttv *btv)
911 const struct bttv_tvnorm *tvnorm;
914 tvnorm = &bttv_tvnorms[btv->tvnorm];
915 btv->crop_start = tvnorm->cropcap.bounds.top
916 + tvnorm->cropcap.bounds.height;
918 /* VBI capturing ends at VDELAY, start of video capturing, no
919 matter how many lines the VBI RISC program expects. When video
920 capturing is off, it shall no longer "preempt" VBI capturing,
921 so we set VDELAY to maximum. */
922 crop = btread(BT848_E_CROP) | 0xc0;
923 btwrite(crop, BT848_E_CROP);
924 btwrite(0xfe, BT848_E_VDELAY_LO);
925 btwrite(crop, BT848_O_CROP);
926 btwrite(0xfe, BT848_O_VDELAY_LO);
930 void free_btres(struct bttv *btv, struct bttv_fh *fh, int bits)
932 if ((fh->resources & bits) != bits) {
933 /* trying to free ressources not allocated by us ... */
934 printk("bttv: BUG! (btres)\n");
936 mutex_lock(&btv->lock);
937 fh->resources &= ~bits;
938 btv->resources &= ~bits;
940 bits = btv->resources;
942 if (0 == (bits & VIDEO_RESOURCES))
943 disclaim_video_lines(btv);
945 if (0 == (bits & VBI_RESOURCES))
946 disclaim_vbi_lines(btv);
948 mutex_unlock(&btv->lock);
951 /* ----------------------------------------------------------------------- */
952 /* If Bt848a or Bt849, use PLL for PAL/SECAM and crystal for NTSC */
954 /* Frequency = (F_input / PLL_X) * PLL_I.PLL_F/PLL_C
955 PLL_X = Reference pre-divider (0=1, 1=2)
956 PLL_C = Post divider (0=6, 1=4)
957 PLL_I = Integer input
958 PLL_F = Fractional input
960 F_input = 28.636363 MHz:
961 PAL (CLKx2 = 35.46895 MHz): PLL_X = 1, PLL_I = 0x0E, PLL_F = 0xDCF9, PLL_C = 0
964 static void set_pll_freq(struct bttv *btv, unsigned int fin, unsigned int fout)
966 unsigned char fl, fh, fi;
968 /* prevent overflows */
981 btwrite(fl, BT848_PLL_F_LO);
982 btwrite(fh, BT848_PLL_F_HI);
983 btwrite(fi|BT848_PLL_X, BT848_PLL_XCI);
986 static void set_pll(struct bttv *btv)
990 if (!btv->pll.pll_crystal)
993 if (btv->pll.pll_ofreq == btv->pll.pll_current) {
994 dprintk("bttv%d: PLL: no change required\n",btv->c.nr);
998 if (btv->pll.pll_ifreq == btv->pll.pll_ofreq) {
1000 if (btv->pll.pll_current == 0)
1002 bttv_printk(KERN_INFO "bttv%d: PLL can sleep, using XTAL (%d).\n",
1003 btv->c.nr,btv->pll.pll_ifreq);
1004 btwrite(0x00,BT848_TGCTRL);
1005 btwrite(0x00,BT848_PLL_XCI);
1006 btv->pll.pll_current = 0;
1010 bttv_printk(KERN_INFO "bttv%d: PLL: %d => %d ",btv->c.nr,
1011 btv->pll.pll_ifreq, btv->pll.pll_ofreq);
1012 set_pll_freq(btv, btv->pll.pll_ifreq, btv->pll.pll_ofreq);
1014 for (i=0; i<10; i++) {
1015 /* Let other people run while the PLL stabilizes */
1019 if (btread(BT848_DSTATUS) & BT848_DSTATUS_PLOCK) {
1020 btwrite(0,BT848_DSTATUS);
1022 btwrite(0x08,BT848_TGCTRL);
1023 btv->pll.pll_current = btv->pll.pll_ofreq;
1024 bttv_printk(" ok\n");
1028 btv->pll.pll_current = -1;
1029 bttv_printk("failed\n");
1033 /* used to switch between the bt848's analog/digital video capture modes */
1034 static void bt848A_set_timing(struct bttv *btv)
1037 int table_idx = bttv_tvnorms[btv->tvnorm].sram;
1038 int fsc = bttv_tvnorms[btv->tvnorm].Fsc;
1040 if (UNSET == bttv_tvcards[btv->c.type].muxsel[btv->input]) {
1041 dprintk("bttv%d: load digital timing table (table_idx=%d)\n",
1042 btv->c.nr,table_idx);
1044 /* timing change...reset timing generator address */
1045 btwrite(0x00, BT848_TGCTRL);
1046 btwrite(0x02, BT848_TGCTRL);
1047 btwrite(0x00, BT848_TGCTRL);
1049 len=SRAM_Table[table_idx][0];
1050 for(i = 1; i <= len; i++)
1051 btwrite(SRAM_Table[table_idx][i],BT848_TGLB);
1052 btv->pll.pll_ofreq = 27000000;
1055 btwrite(0x11, BT848_TGCTRL);
1056 btwrite(0x41, BT848_DVSIF);
1058 btv->pll.pll_ofreq = fsc;
1060 btwrite(0x0, BT848_DVSIF);
1064 /* ----------------------------------------------------------------------- */
1066 static void bt848_bright(struct bttv *btv, int bright)
1070 // printk("bttv: set bright: %d\n",bright); // DEBUG
1071 btv->bright = bright;
1073 /* We want -128 to 127 we get 0-65535 */
1074 value = (bright >> 8) - 128;
1075 btwrite(value & 0xff, BT848_BRIGHT);
1078 static void bt848_hue(struct bttv *btv, int hue)
1085 value = (hue >> 8) - 128;
1086 btwrite(value & 0xff, BT848_HUE);
1089 static void bt848_contrast(struct bttv *btv, int cont)
1093 btv->contrast = cont;
1096 value = (cont >> 7);
1097 hibit = (value >> 6) & 4;
1098 btwrite(value & 0xff, BT848_CONTRAST_LO);
1099 btaor(hibit, ~4, BT848_E_CONTROL);
1100 btaor(hibit, ~4, BT848_O_CONTROL);
1103 static void bt848_sat(struct bttv *btv, int color)
1105 int val_u,val_v,hibits;
1107 btv->saturation = color;
1109 /* 0-511 for the color */
1110 val_u = ((color * btv->opt_uv_ratio) / 50) >> 7;
1111 val_v = (((color * (100 - btv->opt_uv_ratio) / 50) >>7)*180L)/254;
1112 hibits = (val_u >> 7) & 2;
1113 hibits |= (val_v >> 8) & 1;
1114 btwrite(val_u & 0xff, BT848_SAT_U_LO);
1115 btwrite(val_v & 0xff, BT848_SAT_V_LO);
1116 btaor(hibits, ~3, BT848_E_CONTROL);
1117 btaor(hibits, ~3, BT848_O_CONTROL);
1120 /* ----------------------------------------------------------------------- */
1123 video_mux(struct bttv *btv, unsigned int input)
1127 if (input >= bttv_tvcards[btv->c.type].video_inputs)
1130 /* needed by RemoteVideo MX */
1131 mask2 = bttv_tvcards[btv->c.type].gpiomask2;
1133 gpio_inout(mask2,mask2);
1135 if (input == btv->svhs) {
1136 btor(BT848_CONTROL_COMP, BT848_E_CONTROL);
1137 btor(BT848_CONTROL_COMP, BT848_O_CONTROL);
1139 btand(~BT848_CONTROL_COMP, BT848_E_CONTROL);
1140 btand(~BT848_CONTROL_COMP, BT848_O_CONTROL);
1142 mux = bttv_tvcards[btv->c.type].muxsel[input] & 3;
1143 btaor(mux<<5, ~(3<<5), BT848_IFORM);
1144 dprintk(KERN_DEBUG "bttv%d: video mux: input=%d mux=%d\n",
1145 btv->c.nr,input,mux);
1147 /* card specific hook */
1148 if(bttv_tvcards[btv->c.type].muxsel_hook)
1149 bttv_tvcards[btv->c.type].muxsel_hook (btv, input);
1153 static char *audio_modes[] = {
1154 "audio: tuner", "audio: radio", "audio: extern",
1155 "audio: intern", "audio: mute"
1159 audio_mux(struct bttv *btv, int input, int mute)
1161 int gpio_val, signal;
1162 struct v4l2_control ctrl;
1163 struct i2c_client *c;
1165 gpio_inout(bttv_tvcards[btv->c.type].gpiomask,
1166 bttv_tvcards[btv->c.type].gpiomask);
1167 signal = btread(BT848_DSTATUS) & BT848_DSTATUS_HLOC;
1173 mute = mute || (btv->opt_automute && !signal && !btv->radio_user);
1176 gpio_val = bttv_tvcards[btv->c.type].gpiomute;
1178 gpio_val = bttv_tvcards[btv->c.type].gpiomux[input];
1180 gpio_bits(bttv_tvcards[btv->c.type].gpiomask, gpio_val);
1182 bttv_gpio_tracking(btv, audio_modes[mute ? 4 : input]);
1186 ctrl.id = V4L2_CID_AUDIO_MUTE;
1187 ctrl.value = btv->mute;
1188 bttv_call_i2c_clients(btv, VIDIOC_S_CTRL, &ctrl);
1189 c = btv->i2c_msp34xx_client;
1191 struct v4l2_routing route;
1193 /* Note: the inputs tuner/radio/extern/intern are translated
1194 to msp routings. This assumes common behavior for all msp3400
1195 based TV cards. When this assumption fails, then the
1196 specific MSP routing must be added to the card table.
1197 For now this is sufficient. */
1199 case TVAUDIO_INPUT_RADIO:
1200 route.input = MSP_INPUT(MSP_IN_SCART2, MSP_IN_TUNER1,
1201 MSP_DSP_IN_SCART, MSP_DSP_IN_SCART);
1203 case TVAUDIO_INPUT_EXTERN:
1204 route.input = MSP_INPUT(MSP_IN_SCART1, MSP_IN_TUNER1,
1205 MSP_DSP_IN_SCART, MSP_DSP_IN_SCART);
1207 case TVAUDIO_INPUT_INTERN:
1208 /* Yes, this is the same input as for RADIO. I doubt
1209 if this is ever used. The only board with an INTERN
1210 input is the BTTV_BOARD_AVERMEDIA98. I wonder how
1211 that was tested. My guess is that the whole INTERN
1212 input does not work. */
1213 route.input = MSP_INPUT(MSP_IN_SCART2, MSP_IN_TUNER1,
1214 MSP_DSP_IN_SCART, MSP_DSP_IN_SCART);
1216 case TVAUDIO_INPUT_TUNER:
1218 /* This is the only card that uses TUNER2, and afaik,
1219 is the only difference between the VOODOOTV_FM
1221 if (btv->c.type == BTTV_BOARD_VOODOOTV_200)
1222 route.input = MSP_INPUT(MSP_IN_SCART1, MSP_IN_TUNER2, \
1223 MSP_DSP_IN_TUNER, MSP_DSP_IN_TUNER);
1225 route.input = MSP_INPUT_DEFAULT;
1228 route.output = MSP_OUTPUT_DEFAULT;
1229 c->driver->command(c, VIDIOC_INT_S_AUDIO_ROUTING, &route);
1231 c = btv->i2c_tvaudio_client;
1233 struct v4l2_routing route;
1235 route.input = input;
1237 c->driver->command(c, VIDIOC_INT_S_AUDIO_ROUTING, &route);
1243 audio_mute(struct bttv *btv, int mute)
1245 return audio_mux(btv, btv->audio, mute);
1249 audio_input(struct bttv *btv, int input)
1251 return audio_mux(btv, input, btv->mute);
1255 bttv_crop_calc_limits(struct bttv_crop *c)
1257 /* Scale factor min. 1:1, max. 16:1. Min. image size
1258 48 x 32. Scaled width must be a multiple of 4. */
1261 /* For bug compatibility with VIDIOCGCAP and image
1262 size checks in earlier driver versions. */
1263 c->min_scaled_width = 48;
1264 c->min_scaled_height = 32;
1266 c->min_scaled_width =
1267 (max(48, c->rect.width >> 4) + 3) & ~3;
1268 c->min_scaled_height =
1269 max(32, c->rect.height >> 4);
1272 c->max_scaled_width = c->rect.width & ~3;
1273 c->max_scaled_height = c->rect.height;
1277 bttv_crop_reset(struct bttv_crop *c, int norm)
1279 c->rect = bttv_tvnorms[norm].cropcap.defrect;
1280 bttv_crop_calc_limits(c);
1283 /* Call with btv->lock down. */
1285 set_tvnorm(struct bttv *btv, unsigned int norm)
1287 const struct bttv_tvnorm *tvnorm;
1290 if (norm < 0 || norm >= BTTV_TVNORMS)
1293 tvnorm = &bttv_tvnorms[norm];
1295 if (btv->tvnorm < 0 ||
1296 btv->tvnorm >= BTTV_TVNORMS ||
1297 0 != memcmp(&bttv_tvnorms[btv->tvnorm].cropcap,
1299 sizeof (tvnorm->cropcap))) {
1300 bttv_crop_reset(&btv->crop[0], norm);
1301 btv->crop[1] = btv->crop[0]; /* current = default */
1303 if (0 == (btv->resources & VIDEO_RESOURCES)) {
1304 btv->crop_start = tvnorm->cropcap.bounds.top
1305 + tvnorm->cropcap.bounds.height;
1311 btwrite(tvnorm->adelay, BT848_ADELAY);
1312 btwrite(tvnorm->bdelay, BT848_BDELAY);
1313 btaor(tvnorm->iform,~(BT848_IFORM_NORM|BT848_IFORM_XTBOTH),
1315 btwrite(tvnorm->vbipack, BT848_VBI_PACK_SIZE);
1316 btwrite(1, BT848_VBI_PACK_DEL);
1317 bt848A_set_timing(btv);
1319 switch (btv->c.type) {
1320 case BTTV_BOARD_VOODOOTV_FM:
1321 case BTTV_BOARD_VOODOOTV_200:
1322 bttv_tda9880_setnorm(btv,norm);
1325 id = tvnorm->v4l2_id;
1326 bttv_call_i2c_clients(btv, VIDIOC_S_STD, &id);
1331 /* Call with btv->lock down. */
1333 set_input(struct bttv *btv, unsigned int input, unsigned int norm)
1335 unsigned long flags;
1339 spin_lock_irqsave(&btv->s_lock,flags);
1340 if (btv->curr.frame_irq) {
1341 /* active capture -> delayed input switch */
1342 btv->new_input = input;
1344 video_mux(btv,input);
1346 spin_unlock_irqrestore(&btv->s_lock,flags);
1348 video_mux(btv,input);
1350 audio_input(btv,(input == bttv_tvcards[btv->c.type].tuner ?
1351 TVAUDIO_INPUT_TUNER : TVAUDIO_INPUT_EXTERN));
1352 set_tvnorm(btv, norm);
1355 static void init_irqreg(struct bttv *btv)
1358 btwrite(0xfffffUL, BT848_INT_STAT);
1360 if (bttv_tvcards[btv->c.type].no_video) {
1362 btwrite(BT848_INT_I2CDONE,
1366 btwrite((btv->triton1) |
1367 (btv->gpioirq ? BT848_INT_GPINT : 0) |
1369 (fdsr ? BT848_INT_FDSR : 0) |
1370 BT848_INT_RISCI|BT848_INT_OCERR|BT848_INT_VPRES|
1371 BT848_INT_FMTCHG|BT848_INT_HLOCK|
1377 static void init_bt848(struct bttv *btv)
1381 if (bttv_tvcards[btv->c.type].no_video) {
1382 /* very basic init only */
1387 btwrite(0x00, BT848_CAP_CTL);
1388 btwrite(BT848_COLOR_CTL_GAMMA, BT848_COLOR_CTL);
1389 btwrite(BT848_IFORM_XTAUTO | BT848_IFORM_AUTO, BT848_IFORM);
1391 /* set planar and packed mode trigger points and */
1392 /* set rising edge of inverted GPINTR pin as irq trigger */
1393 btwrite(BT848_GPIO_DMA_CTL_PKTP_32|
1394 BT848_GPIO_DMA_CTL_PLTP1_16|
1395 BT848_GPIO_DMA_CTL_PLTP23_16|
1396 BT848_GPIO_DMA_CTL_GPINTC|
1397 BT848_GPIO_DMA_CTL_GPINTI,
1398 BT848_GPIO_DMA_CTL);
1400 val = btv->opt_chroma_agc ? BT848_SCLOOP_CAGC : 0;
1401 btwrite(val, BT848_E_SCLOOP);
1402 btwrite(val, BT848_O_SCLOOP);
1404 btwrite(0x20, BT848_E_VSCALE_HI);
1405 btwrite(0x20, BT848_O_VSCALE_HI);
1406 btwrite(BT848_ADC_RESERVED | (btv->opt_adc_crush ? BT848_ADC_CRUSH : 0),
1409 btwrite(whitecrush_upper, BT848_WC_UP);
1410 btwrite(whitecrush_lower, BT848_WC_DOWN);
1412 if (btv->opt_lumafilter) {
1413 btwrite(0, BT848_E_CONTROL);
1414 btwrite(0, BT848_O_CONTROL);
1416 btwrite(BT848_CONTROL_LDEC, BT848_E_CONTROL);
1417 btwrite(BT848_CONTROL_LDEC, BT848_O_CONTROL);
1420 bt848_bright(btv, btv->bright);
1421 bt848_hue(btv, btv->hue);
1422 bt848_contrast(btv, btv->contrast);
1423 bt848_sat(btv, btv->saturation);
1429 static void bttv_reinit_bt848(struct bttv *btv)
1431 unsigned long flags;
1434 printk(KERN_INFO "bttv%d: reset, reinitialize\n",btv->c.nr);
1435 spin_lock_irqsave(&btv->s_lock,flags);
1437 bttv_set_dma(btv,0);
1438 spin_unlock_irqrestore(&btv->s_lock,flags);
1441 btv->pll.pll_current = -1;
1442 set_input(btv, btv->input, btv->tvnorm);
1445 static int bttv_g_ctrl(struct file *file, void *priv,
1446 struct v4l2_control *c)
1448 struct bttv_fh *fh = priv;
1449 struct bttv *btv = fh->btv;
1452 case V4L2_CID_BRIGHTNESS:
1453 c->value = btv->bright;
1456 c->value = btv->hue;
1458 case V4L2_CID_CONTRAST:
1459 c->value = btv->contrast;
1461 case V4L2_CID_SATURATION:
1462 c->value = btv->saturation;
1465 case V4L2_CID_AUDIO_MUTE:
1466 case V4L2_CID_AUDIO_VOLUME:
1467 case V4L2_CID_AUDIO_BALANCE:
1468 case V4L2_CID_AUDIO_BASS:
1469 case V4L2_CID_AUDIO_TREBLE:
1470 bttv_call_i2c_clients(btv, VIDIOC_G_CTRL, c);
1473 case V4L2_CID_PRIVATE_CHROMA_AGC:
1474 c->value = btv->opt_chroma_agc;
1476 case V4L2_CID_PRIVATE_COMBFILTER:
1477 c->value = btv->opt_combfilter;
1479 case V4L2_CID_PRIVATE_LUMAFILTER:
1480 c->value = btv->opt_lumafilter;
1482 case V4L2_CID_PRIVATE_AUTOMUTE:
1483 c->value = btv->opt_automute;
1485 case V4L2_CID_PRIVATE_AGC_CRUSH:
1486 c->value = btv->opt_adc_crush;
1488 case V4L2_CID_PRIVATE_VCR_HACK:
1489 c->value = btv->opt_vcr_hack;
1491 case V4L2_CID_PRIVATE_WHITECRUSH_UPPER:
1492 c->value = btv->opt_whitecrush_upper;
1494 case V4L2_CID_PRIVATE_WHITECRUSH_LOWER:
1495 c->value = btv->opt_whitecrush_lower;
1497 case V4L2_CID_PRIVATE_UV_RATIO:
1498 c->value = btv->opt_uv_ratio;
1500 case V4L2_CID_PRIVATE_FULL_LUMA_RANGE:
1501 c->value = btv->opt_full_luma_range;
1503 case V4L2_CID_PRIVATE_CORING:
1504 c->value = btv->opt_coring;
1512 static int bttv_s_ctrl(struct file *file, void *f,
1513 struct v4l2_control *c)
1517 struct bttv_fh *fh = f;
1518 struct bttv *btv = fh->btv;
1520 err = v4l2_prio_check(&btv->prio, &fh->prio);
1525 case V4L2_CID_BRIGHTNESS:
1526 bt848_bright(btv, c->value);
1529 bt848_hue(btv, c->value);
1531 case V4L2_CID_CONTRAST:
1532 bt848_contrast(btv, c->value);
1534 case V4L2_CID_SATURATION:
1535 bt848_sat(btv, c->value);
1537 case V4L2_CID_AUDIO_MUTE:
1538 audio_mute(btv, c->value);
1540 case V4L2_CID_AUDIO_VOLUME:
1541 if (btv->volume_gpio)
1542 btv->volume_gpio(btv, c->value);
1544 bttv_call_i2c_clients(btv, VIDIOC_S_CTRL, c);
1546 case V4L2_CID_AUDIO_BALANCE:
1547 case V4L2_CID_AUDIO_BASS:
1548 case V4L2_CID_AUDIO_TREBLE:
1549 bttv_call_i2c_clients(btv, VIDIOC_S_CTRL, c);
1552 case V4L2_CID_PRIVATE_CHROMA_AGC:
1553 btv->opt_chroma_agc = c->value;
1554 val = btv->opt_chroma_agc ? BT848_SCLOOP_CAGC : 0;
1555 btwrite(val, BT848_E_SCLOOP);
1556 btwrite(val, BT848_O_SCLOOP);
1558 case V4L2_CID_PRIVATE_COMBFILTER:
1559 btv->opt_combfilter = c->value;
1561 case V4L2_CID_PRIVATE_LUMAFILTER:
1562 btv->opt_lumafilter = c->value;
1563 if (btv->opt_lumafilter) {
1564 btand(~BT848_CONTROL_LDEC, BT848_E_CONTROL);
1565 btand(~BT848_CONTROL_LDEC, BT848_O_CONTROL);
1567 btor(BT848_CONTROL_LDEC, BT848_E_CONTROL);
1568 btor(BT848_CONTROL_LDEC, BT848_O_CONTROL);
1571 case V4L2_CID_PRIVATE_AUTOMUTE:
1572 btv->opt_automute = c->value;
1574 case V4L2_CID_PRIVATE_AGC_CRUSH:
1575 btv->opt_adc_crush = c->value;
1576 btwrite(BT848_ADC_RESERVED |
1577 (btv->opt_adc_crush ? BT848_ADC_CRUSH : 0),
1580 case V4L2_CID_PRIVATE_VCR_HACK:
1581 btv->opt_vcr_hack = c->value;
1583 case V4L2_CID_PRIVATE_WHITECRUSH_UPPER:
1584 btv->opt_whitecrush_upper = c->value;
1585 btwrite(c->value, BT848_WC_UP);
1587 case V4L2_CID_PRIVATE_WHITECRUSH_LOWER:
1588 btv->opt_whitecrush_lower = c->value;
1589 btwrite(c->value, BT848_WC_DOWN);
1591 case V4L2_CID_PRIVATE_UV_RATIO:
1592 btv->opt_uv_ratio = c->value;
1593 bt848_sat(btv, btv->saturation);
1595 case V4L2_CID_PRIVATE_FULL_LUMA_RANGE:
1596 btv->opt_full_luma_range = c->value;
1597 btaor((c->value<<7), ~BT848_OFORM_RANGE, BT848_OFORM);
1599 case V4L2_CID_PRIVATE_CORING:
1600 btv->opt_coring = c->value;
1601 btaor((c->value<<5), ~BT848_OFORM_CORE32, BT848_OFORM);
1609 /* ----------------------------------------------------------------------- */
1611 void bttv_gpio_tracking(struct bttv *btv, char *comment)
1613 unsigned int outbits, data;
1614 outbits = btread(BT848_GPIO_OUT_EN);
1615 data = btread(BT848_GPIO_DATA);
1616 printk(KERN_DEBUG "bttv%d: gpio: en=%08x, out=%08x in=%08x [%s]\n",
1617 btv->c.nr,outbits,data & outbits, data & ~outbits, comment);
1620 static void bttv_field_count(struct bttv *btv)
1628 /* start field counter */
1629 btor(BT848_INT_VSYNC,BT848_INT_MASK);
1631 /* stop field counter */
1632 btand(~BT848_INT_VSYNC,BT848_INT_MASK);
1633 btv->field_count = 0;
1637 static const struct bttv_format*
1638 format_by_fourcc(int fourcc)
1642 for (i = 0; i < FORMATS; i++) {
1643 if (-1 == formats[i].fourcc)
1645 if (formats[i].fourcc == fourcc)
1651 /* ----------------------------------------------------------------------- */
1655 bttv_switch_overlay(struct bttv *btv, struct bttv_fh *fh,
1656 struct bttv_buffer *new)
1658 struct bttv_buffer *old;
1659 unsigned long flags;
1662 dprintk("switch_overlay: enter [new=%p]\n",new);
1664 new->vb.state = VIDEOBUF_DONE;
1665 spin_lock_irqsave(&btv->s_lock,flags);
1669 bttv_set_dma(btv, 0x03);
1670 spin_unlock_irqrestore(&btv->s_lock,flags);
1672 dprintk("switch_overlay: old=%p state is %d\n",old,old->vb.state);
1673 bttv_dma_free(&fh->cap,btv, old);
1677 free_btres(btv,fh,RESOURCE_OVERLAY);
1678 dprintk("switch_overlay: done\n");
1682 /* ----------------------------------------------------------------------- */
1683 /* video4linux (1) interface */
1685 static int bttv_prepare_buffer(struct videobuf_queue *q,struct bttv *btv,
1686 struct bttv_buffer *buf,
1687 const struct bttv_format *fmt,
1688 unsigned int width, unsigned int height,
1689 enum v4l2_field field)
1691 struct bttv_fh *fh = q->priv_data;
1692 int redo_dma_risc = 0;
1697 /* check settings */
1700 if (fmt->btformat == BT848_COLOR_FMT_RAW) {
1702 height = RAW_LINES*2;
1703 if (width*height > buf->vb.bsize)
1705 buf->vb.size = buf->vb.bsize;
1707 /* Make sure tvnorm and vbi_end remain consistent
1708 until we're done. */
1709 mutex_lock(&btv->lock);
1713 /* In this mode capturing always starts at defrect.top
1714 (default VDELAY), ignoring cropping parameters. */
1715 if (btv->vbi_end > bttv_tvnorms[norm].cropcap.defrect.top) {
1716 mutex_unlock(&btv->lock);
1720 mutex_unlock(&btv->lock);
1722 c.rect = bttv_tvnorms[norm].cropcap.defrect;
1724 mutex_lock(&btv->lock);
1727 c = btv->crop[!!fh->do_crop];
1729 mutex_unlock(&btv->lock);
1731 if (width < c.min_scaled_width ||
1732 width > c.max_scaled_width ||
1733 height < c.min_scaled_height)
1737 case V4L2_FIELD_TOP:
1738 case V4L2_FIELD_BOTTOM:
1739 case V4L2_FIELD_ALTERNATE:
1740 /* btv->crop counts frame lines. Max. scale
1741 factor is 16:1 for frames, 8:1 for fields. */
1742 if (height * 2 > c.max_scaled_height)
1747 if (height > c.max_scaled_height)
1752 buf->vb.size = (width * height * fmt->depth) >> 3;
1753 if (0 != buf->vb.baddr && buf->vb.bsize < buf->vb.size)
1757 /* alloc + fill struct bttv_buffer (if changed) */
1758 if (buf->vb.width != width || buf->vb.height != height ||
1759 buf->vb.field != field ||
1760 buf->tvnorm != norm || buf->fmt != fmt ||
1761 buf->crop.top != c.rect.top ||
1762 buf->crop.left != c.rect.left ||
1763 buf->crop.width != c.rect.width ||
1764 buf->crop.height != c.rect.height) {
1765 buf->vb.width = width;
1766 buf->vb.height = height;
1767 buf->vb.field = field;
1774 /* alloc risc memory */
1775 if (VIDEOBUF_NEEDS_INIT == buf->vb.state) {
1777 if (0 != (rc = videobuf_iolock(q,&buf->vb,&btv->fbuf)))
1782 if (0 != (rc = bttv_buffer_risc(btv,buf)))
1785 buf->vb.state = VIDEOBUF_PREPARED;
1789 bttv_dma_free(q,btv,buf);
1794 buffer_setup(struct videobuf_queue *q, unsigned int *count, unsigned int *size)
1796 struct bttv_fh *fh = q->priv_data;
1798 *size = fh->fmt->depth*fh->width*fh->height >> 3;
1801 while (*size * *count > gbuffers * gbufsize)
1807 buffer_prepare(struct videobuf_queue *q, struct videobuf_buffer *vb,
1808 enum v4l2_field field)
1810 struct bttv_buffer *buf = container_of(vb,struct bttv_buffer,vb);
1811 struct bttv_fh *fh = q->priv_data;
1813 return bttv_prepare_buffer(q,fh->btv, buf, fh->fmt,
1814 fh->width, fh->height, field);
1818 buffer_queue(struct videobuf_queue *q, struct videobuf_buffer *vb)
1820 struct bttv_buffer *buf = container_of(vb,struct bttv_buffer,vb);
1821 struct bttv_fh *fh = q->priv_data;
1822 struct bttv *btv = fh->btv;
1824 buf->vb.state = VIDEOBUF_QUEUED;
1825 list_add_tail(&buf->vb.queue,&btv->capture);
1826 if (!btv->curr.frame_irq) {
1828 bttv_set_dma(btv, 0x03);
1832 static void buffer_release(struct videobuf_queue *q, struct videobuf_buffer *vb)
1834 struct bttv_buffer *buf = container_of(vb,struct bttv_buffer,vb);
1835 struct bttv_fh *fh = q->priv_data;
1837 bttv_dma_free(q,fh->btv,buf);
1840 static struct videobuf_queue_ops bttv_video_qops = {
1841 .buf_setup = buffer_setup,
1842 .buf_prepare = buffer_prepare,
1843 .buf_queue = buffer_queue,
1844 .buf_release = buffer_release,
1847 static int bttv_s_std(struct file *file, void *priv, v4l2_std_id *id)
1849 struct bttv_fh *fh = priv;
1850 struct bttv *btv = fh->btv;
1854 err = v4l2_prio_check(&btv->prio, &fh->prio);
1858 for (i = 0; i < BTTV_TVNORMS; i++)
1859 if (*id & bttv_tvnorms[i].v4l2_id)
1861 if (i == BTTV_TVNORMS)
1864 mutex_lock(&btv->lock);
1866 mutex_unlock(&btv->lock);
1871 static int bttv_querystd(struct file *file, void *f, v4l2_std_id *id)
1873 struct bttv_fh *fh = f;
1874 struct bttv *btv = fh->btv;
1876 if (btread(BT848_DSTATUS) & BT848_DSTATUS_NUML)
1877 *id = V4L2_STD_625_50;
1879 *id = V4L2_STD_525_60;
1883 static int bttv_enum_input(struct file *file, void *priv,
1884 struct v4l2_input *i)
1886 struct bttv_fh *fh = priv;
1887 struct bttv *btv = fh->btv;
1892 if (n >= bttv_tvcards[btv->c.type].video_inputs)
1895 memset(i, 0, sizeof(*i));
1898 i->type = V4L2_INPUT_TYPE_CAMERA;
1901 if (i->index == bttv_tvcards[btv->c.type].tuner) {
1902 sprintf(i->name, "Television");
1903 i->type = V4L2_INPUT_TYPE_TUNER;
1905 } else if (i->index == btv->svhs) {
1906 sprintf(i->name, "S-Video");
1908 sprintf(i->name, "Composite%d", i->index);
1911 if (i->index == btv->input) {
1912 __u32 dstatus = btread(BT848_DSTATUS);
1913 if (0 == (dstatus & BT848_DSTATUS_PRES))
1914 i->status |= V4L2_IN_ST_NO_SIGNAL;
1915 if (0 == (dstatus & BT848_DSTATUS_HLOC))
1916 i->status |= V4L2_IN_ST_NO_H_LOCK;
1919 for (n = 0; n < BTTV_TVNORMS; n++)
1920 i->std |= bttv_tvnorms[n].v4l2_id;
1925 static int bttv_g_input(struct file *file, void *priv, unsigned int *i)
1927 struct bttv_fh *fh = priv;
1928 struct bttv *btv = fh->btv;
1934 static int bttv_s_input(struct file *file, void *priv, unsigned int i)
1936 struct bttv_fh *fh = priv;
1937 struct bttv *btv = fh->btv;
1941 err = v4l2_prio_check(&btv->prio, &fh->prio);
1945 if (i > bttv_tvcards[btv->c.type].video_inputs)
1948 mutex_lock(&btv->lock);
1949 set_input(btv, i, btv->tvnorm);
1950 mutex_unlock(&btv->lock);
1954 static int bttv_s_tuner(struct file *file, void *priv,
1955 struct v4l2_tuner *t)
1957 struct bttv_fh *fh = priv;
1958 struct bttv *btv = fh->btv;
1961 err = v4l2_prio_check(&btv->prio, &fh->prio);
1965 if (UNSET == bttv_tvcards[btv->c.type].tuner)
1971 mutex_lock(&btv->lock);
1972 bttv_call_i2c_clients(btv, VIDIOC_S_TUNER, t);
1974 if (btv->audio_mode_gpio)
1975 btv->audio_mode_gpio(btv, t, 1);
1977 mutex_unlock(&btv->lock);
1982 static int bttv_g_frequency(struct file *file, void *priv,
1983 struct v4l2_frequency *f)
1985 struct bttv_fh *fh = priv;
1986 struct bttv *btv = fh->btv;
1989 err = v4l2_prio_check(&btv->prio, &fh->prio);
1993 f->type = btv->radio_user ? V4L2_TUNER_RADIO : V4L2_TUNER_ANALOG_TV;
1994 f->frequency = btv->freq;
1999 static int bttv_s_frequency(struct file *file, void *priv,
2000 struct v4l2_frequency *f)
2002 struct bttv_fh *fh = priv;
2003 struct bttv *btv = fh->btv;
2006 err = v4l2_prio_check(&btv->prio, &fh->prio);
2010 if (unlikely(f->tuner != 0))
2012 if (unlikely(f->type != (btv->radio_user
2013 ? V4L2_TUNER_RADIO : V4L2_TUNER_ANALOG_TV)))
2015 mutex_lock(&btv->lock);
2016 btv->freq = f->frequency;
2017 bttv_call_i2c_clients(btv, VIDIOC_S_FREQUENCY, f);
2018 if (btv->has_matchbox && btv->radio_user)
2019 tea5757_set_freq(btv, btv->freq);
2020 mutex_unlock(&btv->lock);
2024 static int bttv_log_status(struct file *file, void *f)
2026 struct bttv_fh *fh = f;
2027 struct bttv *btv = fh->btv;
2029 printk(KERN_INFO "bttv%d: ======== START STATUS CARD #%d ========\n",
2030 btv->c.nr, btv->c.nr);
2031 bttv_call_i2c_clients(btv, VIDIOC_LOG_STATUS, NULL);
2032 printk(KERN_INFO "bttv%d: ======== END STATUS CARD #%d ========\n",
2033 btv->c.nr, btv->c.nr);
2037 #ifdef CONFIG_VIDEO_ADV_DEBUG
2038 static int bttv_g_register(struct file *file, void *f,
2039 struct v4l2_register *reg)
2041 struct bttv_fh *fh = f;
2042 struct bttv *btv = fh->btv;
2044 if (!capable(CAP_SYS_ADMIN))
2047 if (!v4l2_chip_match_host(reg->match_type, reg->match_chip))
2050 /* bt848 has a 12-bit register space */
2052 reg->val = btread(reg->reg);
2057 static int bttv_s_register(struct file *file, void *f,
2058 struct v4l2_register *reg)
2060 struct bttv_fh *fh = f;
2061 struct bttv *btv = fh->btv;
2063 if (!capable(CAP_SYS_ADMIN))
2066 if (!v4l2_chip_match_host(reg->match_type, reg->match_chip))
2069 /* bt848 has a 12-bit register space */
2071 btwrite(reg->val, reg->reg);
2077 /* Given cropping boundaries b and the scaled width and height of a
2078 single field or frame, which must not exceed hardware limits, this
2079 function adjusts the cropping parameters c. */
2081 bttv_crop_adjust (struct bttv_crop * c,
2082 const struct v4l2_rect * b,
2085 enum v4l2_field field)
2087 __s32 frame_height = height << !V4L2_FIELD_HAS_BOTH(field);
2091 if (width < c->min_scaled_width) {
2092 /* Max. hor. scale factor 16:1. */
2093 c->rect.width = width * 16;
2094 } else if (width > c->max_scaled_width) {
2095 /* Min. hor. scale factor 1:1. */
2096 c->rect.width = width;
2098 max_left = b->left + b->width - width;
2099 max_left = min(max_left, (__s32) MAX_HDELAY);
2100 if (c->rect.left > max_left)
2101 c->rect.left = max_left;
2104 if (height < c->min_scaled_height) {
2105 /* Max. vert. scale factor 16:1, single fields 8:1. */
2106 c->rect.height = height * 16;
2107 } else if (frame_height > c->max_scaled_height) {
2108 /* Min. vert. scale factor 1:1.
2109 Top and height count field lines times two. */
2110 c->rect.height = (frame_height + 1) & ~1;
2112 max_top = b->top + b->height - c->rect.height;
2113 if (c->rect.top > max_top)
2114 c->rect.top = max_top;
2117 bttv_crop_calc_limits(c);
2120 /* Returns an error if scaling to a frame or single field with the given
2121 width and height is not possible with the current cropping parameters
2122 and width aligned according to width_mask. If adjust_size is TRUE the
2123 function may adjust the width and/or height instead, rounding width
2124 to (width + width_bias) & width_mask. If adjust_crop is TRUE it may
2125 also adjust the current cropping parameters to get closer to the
2126 desired image size. */
2128 limit_scaled_size (struct bttv_fh * fh,
2131 enum v4l2_field field,
2132 unsigned int width_mask,
2133 unsigned int width_bias,
2137 struct bttv *btv = fh->btv;
2138 const struct v4l2_rect *b;
2139 struct bttv_crop *c;
2146 BUG_ON((int) width_mask >= 0 ||
2147 width_bias >= (unsigned int) -width_mask);
2149 /* Make sure tvnorm, vbi_end and the current cropping parameters
2150 remain consistent until we're done. */
2151 mutex_lock(&btv->lock);
2153 b = &bttv_tvnorms[btv->tvnorm].cropcap.bounds;
2155 /* Do crop - use current, don't - use default parameters. */
2156 c = &btv->crop[!!fh->do_crop];
2161 && !locked_btres(btv, VIDEO_RESOURCES)) {
2165 /* We cannot scale up. When the scaled image is larger
2166 than crop.rect we adjust the crop.rect as required
2167 by the V4L2 spec, hence cropcap.bounds are our limit. */
2168 max_width = min(b->width, (__s32) MAX_HACTIVE);
2169 max_height = b->height;
2171 /* We cannot capture the same line as video and VBI data.
2172 Note btv->vbi_end is really a minimum, see
2173 bttv_vbi_try_fmt(). */
2174 if (btv->vbi_end > b->top) {
2175 max_height -= btv->vbi_end - b->top;
2177 if (min_height > max_height)
2182 if (btv->vbi_end > c->rect.top)
2185 min_width = c->min_scaled_width;
2186 min_height = c->min_scaled_height;
2187 max_width = c->max_scaled_width;
2188 max_height = c->max_scaled_height;
2193 min_width = (min_width - width_mask - 1) & width_mask;
2194 max_width = max_width & width_mask;
2196 /* Max. scale factor is 16:1 for frames, 8:1 for fields. */
2197 min_height = min_height;
2198 /* Min. scale factor is 1:1. */
2199 max_height >>= !V4L2_FIELD_HAS_BOTH(field);
2202 *width = clamp(*width, min_width, max_width);
2203 *height = clamp(*height, min_height, max_height);
2205 /* Round after clamping to avoid overflow. */
2206 *width = (*width + width_bias) & width_mask;
2209 bttv_crop_adjust(c, b, *width, *height, field);
2211 if (btv->vbi_end > c->rect.top) {
2212 /* Move the crop window out of the way. */
2213 c->rect.top = btv->vbi_end;
2218 if (*width < min_width ||
2219 *height < min_height ||
2220 *width > max_width ||
2221 *height > max_height ||
2222 0 != (*width & ~width_mask))
2226 rc = 0; /* success */
2229 mutex_unlock(&btv->lock);
2234 /* Returns an error if the given overlay window dimensions are not
2235 possible with the current cropping parameters. If adjust_size is
2236 TRUE the function may adjust the window width and/or height
2237 instead, however it always rounds the horizontal position and
2238 width as btcx_align() does. If adjust_crop is TRUE the function
2239 may also adjust the current cropping parameters to get closer
2240 to the desired window size. */
2242 verify_window (struct bttv_fh * fh,
2243 struct v4l2_window * win,
2247 enum v4l2_field field;
2248 unsigned int width_mask;
2251 if (win->w.width < 48 || win->w.height < 32)
2253 if (win->clipcount > 2048)
2258 if (V4L2_FIELD_ANY == field) {
2261 height2 = fh->btv->crop[!!fh->do_crop].rect.height >> 1;
2262 field = (win->w.height > height2)
2263 ? V4L2_FIELD_INTERLACED
2267 case V4L2_FIELD_TOP:
2268 case V4L2_FIELD_BOTTOM:
2269 case V4L2_FIELD_INTERLACED:
2275 /* 4-byte alignment. */
2276 if (NULL == fh->ovfmt)
2279 switch (fh->ovfmt->depth) {
2293 win->w.width -= win->w.left & ~width_mask;
2294 win->w.left = (win->w.left - width_mask - 1) & width_mask;
2296 rc = limit_scaled_size(fh, &win->w.width, &win->w.height,
2298 /* width_bias: round down */ 0,
2299 adjust_size, adjust_crop);
2307 static int setup_window(struct bttv_fh *fh, struct bttv *btv,
2308 struct v4l2_window *win, int fixup)
2310 struct v4l2_clip *clips = NULL;
2311 int n,size,retval = 0;
2313 if (NULL == fh->ovfmt)
2315 if (!(fh->ovfmt->flags & FORMAT_FLAGS_PACKED))
2317 retval = verify_window(fh, win,
2318 /* adjust_size */ fixup,
2319 /* adjust_crop */ fixup);
2323 /* copy clips -- luckily v4l1 + v4l2 are binary
2324 compatible here ...*/
2326 size = sizeof(*clips)*(n+4);
2327 clips = kmalloc(size,GFP_KERNEL);
2331 if (copy_from_user(clips,win->clips,sizeof(struct v4l2_clip)*n)) {
2336 /* clip against screen */
2337 if (NULL != btv->fbuf.base)
2338 n = btcx_screen_clips(btv->fbuf.fmt.width, btv->fbuf.fmt.height,
2340 btcx_sort_clips(clips,n);
2342 /* 4-byte alignments */
2343 switch (fh->ovfmt->depth) {
2346 btcx_align(&win->w, clips, n, 3);
2349 btcx_align(&win->w, clips, n, 1);
2352 /* no alignment fixups needed */
2358 mutex_lock(&fh->cap.vb_lock);
2359 kfree(fh->ov.clips);
2360 fh->ov.clips = clips;
2364 fh->ov.field = win->field;
2365 fh->ov.setup_ok = 1;
2366 btv->init.ov.w.width = win->w.width;
2367 btv->init.ov.w.height = win->w.height;
2368 btv->init.ov.field = win->field;
2370 /* update overlay if needed */
2372 if (check_btres(fh, RESOURCE_OVERLAY)) {
2373 struct bttv_buffer *new;
2375 new = videobuf_pci_alloc(sizeof(*new));
2376 new->crop = btv->crop[!!fh->do_crop].rect;
2377 bttv_overlay_risc(btv, &fh->ov, fh->ovfmt, new);
2378 retval = bttv_switch_overlay(btv,fh,new);
2380 mutex_unlock(&fh->cap.vb_lock);
2384 /* ----------------------------------------------------------------------- */
2386 static struct videobuf_queue* bttv_queue(struct bttv_fh *fh)
2388 struct videobuf_queue* q = NULL;
2391 case V4L2_BUF_TYPE_VIDEO_CAPTURE:
2394 case V4L2_BUF_TYPE_VBI_CAPTURE:
2403 static int bttv_resource(struct bttv_fh *fh)
2408 case V4L2_BUF_TYPE_VIDEO_CAPTURE:
2409 res = RESOURCE_VIDEO_STREAM;
2411 case V4L2_BUF_TYPE_VBI_CAPTURE:
2420 static int bttv_switch_type(struct bttv_fh *fh, enum v4l2_buf_type type)
2422 struct videobuf_queue *q = bttv_queue(fh);
2423 int res = bttv_resource(fh);
2425 if (check_btres(fh,res))
2427 if (videobuf_queue_is_busy(q))
2434 pix_format_set_size (struct v4l2_pix_format * f,
2435 const struct bttv_format * fmt,
2437 unsigned int height)
2442 if (fmt->flags & FORMAT_FLAGS_PLANAR) {
2443 f->bytesperline = width; /* Y plane */
2444 f->sizeimage = (width * height * fmt->depth) >> 3;
2446 f->bytesperline = (width * fmt->depth) >> 3;
2447 f->sizeimage = height * f->bytesperline;
2451 static int bttv_g_fmt_cap(struct file *file, void *priv,
2452 struct v4l2_format *f)
2454 struct bttv_fh *fh = priv;
2456 pix_format_set_size(&f->fmt.pix, fh->fmt,
2457 fh->width, fh->height);
2458 f->fmt.pix.field = fh->cap.field;
2459 f->fmt.pix.pixelformat = fh->fmt->fourcc;
2464 static int bttv_g_fmt_overlay(struct file *file, void *priv,
2465 struct v4l2_format *f)
2467 struct bttv_fh *fh = priv;
2469 f->fmt.win.w = fh->ov.w;
2470 f->fmt.win.field = fh->ov.field;
2475 static int bttv_try_fmt_cap(struct file *file, void *priv,
2476 struct v4l2_format *f)
2478 const struct bttv_format *fmt;
2479 struct bttv_fh *fh = priv;
2480 struct bttv *btv = fh->btv;
2481 enum v4l2_field field;
2482 __s32 width, height;
2485 fmt = format_by_fourcc(f->fmt.pix.pixelformat);
2489 field = f->fmt.pix.field;
2491 if (V4L2_FIELD_ANY == field) {
2494 height2 = btv->crop[!!fh->do_crop].rect.height >> 1;
2495 field = (f->fmt.pix.height > height2)
2496 ? V4L2_FIELD_INTERLACED
2497 : V4L2_FIELD_BOTTOM;
2500 if (V4L2_FIELD_SEQ_BT == field)
2501 field = V4L2_FIELD_SEQ_TB;
2504 case V4L2_FIELD_TOP:
2505 case V4L2_FIELD_BOTTOM:
2506 case V4L2_FIELD_ALTERNATE:
2507 case V4L2_FIELD_INTERLACED:
2509 case V4L2_FIELD_SEQ_TB:
2510 if (fmt->flags & FORMAT_FLAGS_PLANAR)
2517 width = f->fmt.pix.width;
2518 height = f->fmt.pix.height;
2520 rc = limit_scaled_size(fh, &width, &height, field,
2521 /* width_mask: 4 pixels */ ~3,
2522 /* width_bias: nearest */ 2,
2523 /* adjust_size */ 1,
2524 /* adjust_crop */ 0);
2528 /* update data for the application */
2529 f->fmt.pix.field = field;
2530 pix_format_set_size(&f->fmt.pix, fmt, width, height);
2535 static int bttv_try_fmt_overlay(struct file *file, void *priv,
2536 struct v4l2_format *f)
2538 struct bttv_fh *fh = priv;
2540 return verify_window(fh, &f->fmt.win,
2541 /* adjust_size */ 1,
2542 /* adjust_crop */ 0);
2545 static int bttv_s_fmt_cap(struct file *file, void *priv,
2546 struct v4l2_format *f)
2549 const struct bttv_format *fmt;
2550 struct bttv_fh *fh = priv;
2551 struct bttv *btv = fh->btv;
2552 __s32 width, height;
2553 enum v4l2_field field;
2555 retval = bttv_switch_type(fh, f->type);
2559 retval = bttv_try_fmt_cap(file, priv, f);
2563 width = f->fmt.pix.width;
2564 height = f->fmt.pix.height;
2565 field = f->fmt.pix.field;
2567 retval = limit_scaled_size(fh, &width, &height, f->fmt.pix.field,
2568 /* width_mask: 4 pixels */ ~3,
2569 /* width_bias: nearest */ 2,
2570 /* adjust_size */ 1,
2571 /* adjust_crop */ 1);
2575 f->fmt.pix.field = field;
2577 fmt = format_by_fourcc(f->fmt.pix.pixelformat);
2579 /* update our state informations */
2580 mutex_lock(&fh->cap.vb_lock);
2582 fh->cap.field = f->fmt.pix.field;
2583 fh->cap.last = V4L2_FIELD_NONE;
2584 fh->width = f->fmt.pix.width;
2585 fh->height = f->fmt.pix.height;
2586 btv->init.fmt = fmt;
2587 btv->init.width = f->fmt.pix.width;
2588 btv->init.height = f->fmt.pix.height;
2589 mutex_unlock(&fh->cap.vb_lock);
2594 static int bttv_s_fmt_overlay(struct file *file, void *priv,
2595 struct v4l2_format *f)
2597 struct bttv_fh *fh = priv;
2598 struct bttv *btv = fh->btv;
2600 if (no_overlay > 0) {
2601 printk(KERN_ERR "V4L2_BUF_TYPE_VIDEO_OVERLAY: no_overlay\n");
2605 return setup_window(fh, btv, &f->fmt.win, 1);
2608 #ifdef CONFIG_VIDEO_V4L1_COMPAT
2609 static int vidiocgmbuf(struct file *file, void *priv, struct video_mbuf *mbuf)
2613 struct bttv_fh *fh = priv;
2615 mutex_lock(&fh->cap.vb_lock);
2616 retval = videobuf_mmap_setup(&fh->cap, gbuffers, gbufsize,
2619 mutex_unlock(&fh->cap.vb_lock);
2624 memset(mbuf, 0, sizeof(*mbuf));
2625 mbuf->frames = gbuffers;
2626 mbuf->size = gbuffers * gbufsize;
2628 for (i = 0; i < gbuffers; i++)
2629 mbuf->offsets[i] = i * gbufsize;
2631 mutex_unlock(&fh->cap.vb_lock);
2636 static int bttv_querycap(struct file *file, void *priv,
2637 struct v4l2_capability *cap)
2639 struct bttv_fh *fh = priv;
2640 struct bttv *btv = fh->btv;
2645 strlcpy(cap->driver, "bttv", sizeof(cap->driver));
2646 strlcpy(cap->card, btv->video_dev->name, sizeof(cap->card));
2647 snprintf(cap->bus_info, sizeof(cap->bus_info),
2648 "PCI:%s", pci_name(btv->c.pci));
2649 cap->version = BTTV_VERSION_CODE;
2651 V4L2_CAP_VIDEO_CAPTURE |
2652 V4L2_CAP_VBI_CAPTURE |
2653 V4L2_CAP_READWRITE |
2655 if (no_overlay <= 0)
2656 cap->capabilities |= V4L2_CAP_VIDEO_OVERLAY;
2658 if (bttv_tvcards[btv->c.type].tuner != UNSET &&
2659 bttv_tvcards[btv->c.type].tuner != TUNER_ABSENT)
2660 cap->capabilities |= V4L2_CAP_TUNER;
2664 static int bttv_enum_fmt_vbi(struct file *file, void *priv,
2665 struct v4l2_fmtdesc *f)
2670 f->pixelformat = V4L2_PIX_FMT_GREY;
2671 strcpy(f->description, "vbi data");
2676 static int bttv_enum_fmt_cap_ovr(struct v4l2_fmtdesc *f)
2680 for (i = 0; i < FORMATS; i++) {
2681 if (formats[i].fourcc != -1)
2683 if ((unsigned int)index == f->index)
2689 f->pixelformat = formats[i].fourcc;
2690 strlcpy(f->description, formats[i].name, sizeof(f->description));
2695 static int bttv_enum_fmt_cap(struct file *file, void *priv,
2696 struct v4l2_fmtdesc *f)
2698 int rc = bttv_enum_fmt_cap_ovr(f);
2706 static int bttv_enum_fmt_overlay(struct file *file, void *priv,
2707 struct v4l2_fmtdesc *f)
2711 if (no_overlay > 0) {
2712 printk(KERN_ERR "V4L2_BUF_TYPE_VIDEO_OVERLAY: no_overlay\n");
2716 rc = bttv_enum_fmt_cap_ovr(f);
2721 if (!(formats[rc].flags & FORMAT_FLAGS_PACKED))
2727 static int bttv_g_fbuf(struct file *file, void *f,
2728 struct v4l2_framebuffer *fb)
2730 struct bttv_fh *fh = f;
2731 struct bttv *btv = fh->btv;
2734 fb->capability = V4L2_FBUF_CAP_LIST_CLIPPING;
2736 fb->fmt.pixelformat = fh->ovfmt->fourcc;
2740 static int bttv_overlay(struct file *file, void *f, unsigned int on)
2742 struct bttv_fh *fh = f;
2743 struct bttv *btv = fh->btv;
2744 struct bttv_buffer *new;
2749 if (NULL == btv->fbuf.base)
2751 if (!fh->ov.setup_ok) {
2752 dprintk("bttv%d: overlay: !setup_ok\n", btv->c.nr);
2757 if (!check_alloc_btres(btv, fh, RESOURCE_OVERLAY))
2760 mutex_lock(&fh->cap.vb_lock);
2762 fh->ov.tvnorm = btv->tvnorm;
2763 new = videobuf_pci_alloc(sizeof(*new));
2764 new->crop = btv->crop[!!fh->do_crop].rect;
2765 bttv_overlay_risc(btv, &fh->ov, fh->ovfmt, new);
2771 retval = bttv_switch_overlay(btv, fh, new);
2772 mutex_unlock(&fh->cap.vb_lock);
2776 static int bttv_s_fbuf(struct file *file, void *f,
2777 struct v4l2_framebuffer *fb)
2779 struct bttv_fh *fh = f;
2780 struct bttv *btv = fh->btv;
2781 const struct bttv_format *fmt;
2784 if (!capable(CAP_SYS_ADMIN) &&
2785 !capable(CAP_SYS_RAWIO))
2789 fmt = format_by_fourcc(fb->fmt.pixelformat);
2792 if (0 == (fmt->flags & FORMAT_FLAGS_PACKED))
2796 if (fb->flags & V4L2_FBUF_FLAG_OVERLAY) {
2797 __s32 width = fb->fmt.width;
2798 __s32 height = fb->fmt.height;
2800 retval = limit_scaled_size(fh, &width, &height,
2801 V4L2_FIELD_INTERLACED,
2802 /* width_mask */ ~3,
2804 /* adjust_size */ 0,
2805 /* adjust_crop */ 0);
2811 mutex_lock(&fh->cap.vb_lock);
2812 btv->fbuf.base = fb->base;
2813 btv->fbuf.fmt.width = fb->fmt.width;
2814 btv->fbuf.fmt.height = fb->fmt.height;
2815 if (0 != fb->fmt.bytesperline)
2816 btv->fbuf.fmt.bytesperline = fb->fmt.bytesperline;
2818 btv->fbuf.fmt.bytesperline = btv->fbuf.fmt.width*fmt->depth/8;
2822 btv->init.ovfmt = fmt;
2823 if (fb->flags & V4L2_FBUF_FLAG_OVERLAY) {
2826 fh->ov.w.width = fb->fmt.width;
2827 fh->ov.w.height = fb->fmt.height;
2828 btv->init.ov.w.width = fb->fmt.width;
2829 btv->init.ov.w.height = fb->fmt.height;
2830 kfree(fh->ov.clips);
2831 fh->ov.clips = NULL;
2834 if (check_btres(fh, RESOURCE_OVERLAY)) {
2835 struct bttv_buffer *new;
2837 new = videobuf_pci_alloc(sizeof(*new));
2838 new->crop = btv->crop[!!fh->do_crop].rect;
2839 bttv_overlay_risc(btv, &fh->ov, fh->ovfmt, new);
2840 retval = bttv_switch_overlay(btv, fh, new);
2843 mutex_unlock(&fh->cap.vb_lock);
2847 static int bttv_reqbufs(struct file *file, void *priv,
2848 struct v4l2_requestbuffers *p)
2850 struct bttv_fh *fh = priv;
2851 return videobuf_reqbufs(bttv_queue(fh), p);
2854 static int bttv_querybuf(struct file *file, void *priv,
2855 struct v4l2_buffer *b)
2857 struct bttv_fh *fh = priv;
2858 return videobuf_querybuf(bttv_queue(fh), b);
2861 static int bttv_qbuf(struct file *file, void *priv, struct v4l2_buffer *b)
2863 struct bttv_fh *fh = priv;
2864 struct bttv *btv = fh->btv;
2865 int res = bttv_resource(fh);
2867 if (!check_alloc_btres(btv, fh, res))
2870 return videobuf_qbuf(bttv_queue(fh), b);
2873 static int bttv_dqbuf(struct file *file, void *priv, struct v4l2_buffer *b)
2875 struct bttv_fh *fh = priv;
2876 return videobuf_dqbuf(bttv_queue(fh), b,
2877 file->f_flags & O_NONBLOCK);
2880 static int bttv_streamon(struct file *file, void *priv,
2881 enum v4l2_buf_type type)
2883 struct bttv_fh *fh = priv;
2884 struct bttv *btv = fh->btv;
2885 int res = bttv_resource(fh);
2887 if (!check_alloc_btres(btv, fh, res))
2889 return videobuf_streamon(bttv_queue(fh));
2893 static int bttv_streamoff(struct file *file, void *priv,
2894 enum v4l2_buf_type type)
2896 struct bttv_fh *fh = priv;
2897 struct bttv *btv = fh->btv;
2899 int res = bttv_resource(fh);
2902 retval = videobuf_streamoff(bttv_queue(fh));
2905 free_btres(btv, fh, res);
2909 static int bttv_queryctrl(struct file *file, void *priv,
2910 struct v4l2_queryctrl *c)
2912 struct bttv_fh *fh = priv;
2913 struct bttv *btv = fh->btv;
2914 const struct v4l2_queryctrl *ctrl;
2916 if ((c->id < V4L2_CID_BASE ||
2917 c->id >= V4L2_CID_LASTP1) &&
2918 (c->id < V4L2_CID_PRIVATE_BASE ||
2919 c->id >= V4L2_CID_PRIVATE_LASTP1))
2922 if (!btv->volume_gpio && (c->id == V4L2_CID_AUDIO_VOLUME))
2925 ctrl = ctrl_by_id(c->id);
2927 *c = (NULL != ctrl) ? *ctrl : no_ctl;
2933 static int bttv_g_parm(struct file *file, void *f,
2934 struct v4l2_streamparm *parm)
2936 struct bttv_fh *fh = f;
2937 struct bttv *btv = fh->btv;
2938 struct v4l2_standard s;
2940 if (parm->type != V4L2_BUF_TYPE_VIDEO_CAPTURE)
2942 v4l2_video_std_construct(&s, bttv_tvnorms[btv->tvnorm].v4l2_id,
2943 bttv_tvnorms[btv->tvnorm].name);
2944 parm->parm.capture.timeperframe = s.frameperiod;
2948 static int bttv_g_tuner(struct file *file, void *priv,
2949 struct v4l2_tuner *t)
2951 struct bttv_fh *fh = priv;
2952 struct bttv *btv = fh->btv;
2954 if (UNSET == bttv_tvcards[btv->c.type].tuner)
2959 mutex_lock(&btv->lock);
2960 memset(t, 0, sizeof(*t));
2961 t->rxsubchans = V4L2_TUNER_SUB_MONO;
2962 bttv_call_i2c_clients(btv, VIDIOC_G_TUNER, t);
2963 strcpy(t->name, "Television");
2964 t->capability = V4L2_TUNER_CAP_NORM;
2965 t->type = V4L2_TUNER_ANALOG_TV;
2966 if (btread(BT848_DSTATUS)&BT848_DSTATUS_HLOC)
2969 if (btv->audio_mode_gpio)
2970 btv->audio_mode_gpio(btv, t, 0);
2972 mutex_unlock(&btv->lock);
2976 static int bttv_g_priority(struct file *file, void *f, enum v4l2_priority *p)
2978 struct bttv_fh *fh = f;
2979 struct bttv *btv = fh->btv;
2981 *p = v4l2_prio_max(&btv->prio);
2986 static int bttv_s_priority(struct file *file, void *f,
2987 enum v4l2_priority prio)
2989 struct bttv_fh *fh = f;
2990 struct bttv *btv = fh->btv;
2992 return v4l2_prio_change(&btv->prio, &fh->prio, prio);
2995 static int bttv_cropcap(struct file *file, void *priv,
2996 struct v4l2_cropcap *cap)
2998 struct bttv_fh *fh = priv;
2999 struct bttv *btv = fh->btv;
3001 if (cap->type != V4L2_BUF_TYPE_VIDEO_CAPTURE &&
3002 cap->type != V4L2_BUF_TYPE_VIDEO_OVERLAY)
3005 *cap = bttv_tvnorms[btv->tvnorm].cropcap;
3010 static int bttv_g_crop(struct file *file, void *f, struct v4l2_crop *crop)
3012 struct bttv_fh *fh = f;
3013 struct bttv *btv = fh->btv;
3015 if (crop->type != V4L2_BUF_TYPE_VIDEO_CAPTURE &&
3016 crop->type != V4L2_BUF_TYPE_VIDEO_OVERLAY)
3019 /* No fh->do_crop = 1; because btv->crop[1] may be
3020 inconsistent with fh->width or fh->height and apps
3021 do not expect a change here. */
3023 crop->c = btv->crop[!!fh->do_crop].rect;
3028 static int bttv_s_crop(struct file *file, void *f, struct v4l2_crop *crop)
3030 struct bttv_fh *fh = f;
3031 struct bttv *btv = fh->btv;
3032 const struct v4l2_rect *b;
3040 if (crop->type != V4L2_BUF_TYPE_VIDEO_CAPTURE &&
3041 crop->type != V4L2_BUF_TYPE_VIDEO_OVERLAY)
3044 retval = v4l2_prio_check(&btv->prio, &fh->prio);
3048 /* Make sure tvnorm, vbi_end and the current cropping
3049 parameters remain consistent until we're done. Note
3050 read() may change vbi_end in check_alloc_btres(). */
3051 mutex_lock(&btv->lock);
3055 if (locked_btres(fh->btv, VIDEO_RESOURCES)) {
3056 mutex_unlock(&btv->lock);
3060 b = &bttv_tvnorms[btv->tvnorm].cropcap.bounds;
3063 b_right = b_left + b->width;
3064 b_bottom = b->top + b->height;
3066 b_top = max(b->top, btv->vbi_end);
3067 if (b_top + 32 >= b_bottom) {
3068 mutex_unlock(&btv->lock);
3072 /* Min. scaled size 48 x 32. */
3073 c.rect.left = clamp(crop->c.left, b_left, b_right - 48);
3074 c.rect.left = min(c.rect.left, (__s32) MAX_HDELAY);
3076 c.rect.width = clamp(crop->c.width,
3077 48, b_right - c.rect.left);
3079 c.rect.top = clamp(crop->c.top, b_top, b_bottom - 32);
3080 /* Top and height must be a multiple of two. */
3081 c.rect.top = (c.rect.top + 1) & ~1;
3083 c.rect.height = clamp(crop->c.height,
3084 32, b_bottom - c.rect.top);
3085 c.rect.height = (c.rect.height + 1) & ~1;
3087 bttv_crop_calc_limits(&c);
3091 mutex_unlock(&btv->lock);
3095 mutex_lock(&fh->cap.vb_lock);
3097 if (fh->width < c.min_scaled_width) {
3098 fh->width = c.min_scaled_width;
3099 btv->init.width = c.min_scaled_width;
3100 } else if (fh->width > c.max_scaled_width) {
3101 fh->width = c.max_scaled_width;
3102 btv->init.width = c.max_scaled_width;
3105 if (fh->height < c.min_scaled_height) {
3106 fh->height = c.min_scaled_height;
3107 btv->init.height = c.min_scaled_height;
3108 } else if (fh->height > c.max_scaled_height) {
3109 fh->height = c.max_scaled_height;
3110 btv->init.height = c.max_scaled_height;
3113 mutex_unlock(&fh->cap.vb_lock);
3118 static int bttv_g_audio(struct file *file, void *priv, struct v4l2_audio *a)
3120 strcpy(a->name, "audio");
3124 static int bttv_s_audio(struct file *file, void *priv, struct v4l2_audio *a)
3129 static ssize_t bttv_read(struct file *file, char __user *data,
3130 size_t count, loff_t *ppos)
3132 struct bttv_fh *fh = file->private_data;
3135 if (fh->btv->errors)
3136 bttv_reinit_bt848(fh->btv);
3137 dprintk("bttv%d: read count=%d type=%s\n",
3138 fh->btv->c.nr,(int)count,v4l2_type_names[fh->type]);
3141 case V4L2_BUF_TYPE_VIDEO_CAPTURE:
3142 if (!check_alloc_btres(fh->btv, fh, RESOURCE_VIDEO_READ)) {
3143 /* VIDEO_READ in use by another fh,
3144 or VIDEO_STREAM by any fh. */
3147 retval = videobuf_read_one(&fh->cap, data, count, ppos,
3148 file->f_flags & O_NONBLOCK);
3149 free_btres(fh->btv, fh, RESOURCE_VIDEO_READ);
3151 case V4L2_BUF_TYPE_VBI_CAPTURE:
3152 if (!check_alloc_btres(fh->btv,fh,RESOURCE_VBI))
3154 retval = videobuf_read_stream(&fh->vbi, data, count, ppos, 1,
3155 file->f_flags & O_NONBLOCK);
3163 static unsigned int bttv_poll(struct file *file, poll_table *wait)
3165 struct bttv_fh *fh = file->private_data;
3166 struct bttv_buffer *buf;
3167 enum v4l2_field field;
3169 if (V4L2_BUF_TYPE_VBI_CAPTURE == fh->type) {
3170 if (!check_alloc_btres(fh->btv,fh,RESOURCE_VBI))
3172 return videobuf_poll_stream(file, &fh->vbi, wait);
3175 if (check_btres(fh,RESOURCE_VIDEO_STREAM)) {
3176 /* streaming capture */
3177 if (list_empty(&fh->cap.stream))
3179 buf = list_entry(fh->cap.stream.next,struct bttv_buffer,vb.stream);
3181 /* read() capture */
3182 mutex_lock(&fh->cap.vb_lock);
3183 if (NULL == fh->cap.read_buf) {
3184 /* need to capture a new frame */
3185 if (locked_btres(fh->btv,RESOURCE_VIDEO_STREAM))
3187 fh->cap.read_buf = videobuf_pci_alloc(fh->cap.msize);
3188 if (NULL == fh->cap.read_buf)
3190 fh->cap.read_buf->memory = V4L2_MEMORY_USERPTR;
3191 field = videobuf_next_field(&fh->cap);
3192 if (0 != fh->cap.ops->buf_prepare(&fh->cap,fh->cap.read_buf,field)) {
3193 kfree (fh->cap.read_buf);
3194 fh->cap.read_buf = NULL;
3197 fh->cap.ops->buf_queue(&fh->cap,fh->cap.read_buf);
3198 fh->cap.read_off = 0;
3200 mutex_unlock(&fh->cap.vb_lock);
3201 buf = (struct bttv_buffer*)fh->cap.read_buf;
3204 poll_wait(file, &buf->vb.done, wait);
3205 if (buf->vb.state == VIDEOBUF_DONE ||
3206 buf->vb.state == VIDEOBUF_ERROR)
3207 return POLLIN|POLLRDNORM;
3210 mutex_unlock(&fh->cap.vb_lock);
3214 static int bttv_open(struct inode *inode, struct file *file)
3216 int minor = iminor(inode);
3217 struct bttv *btv = NULL;
3219 enum v4l2_buf_type type = 0;
3222 dprintk(KERN_DEBUG "bttv: open minor=%d\n",minor);
3224 for (i = 0; i < bttv_num; i++) {
3225 if (bttvs[i].video_dev &&
3226 bttvs[i].video_dev->minor == minor) {
3228 type = V4L2_BUF_TYPE_VIDEO_CAPTURE;
3231 if (bttvs[i].vbi_dev &&
3232 bttvs[i].vbi_dev->minor == minor) {
3234 type = V4L2_BUF_TYPE_VBI_CAPTURE;
3241 dprintk(KERN_DEBUG "bttv%d: open called (type=%s)\n",
3242 btv->c.nr,v4l2_type_names[type]);
3244 /* allocate per filehandle data */
3245 fh = kmalloc(sizeof(*fh),GFP_KERNEL);
3248 file->private_data = fh;
3251 fh->ov.setup_ok = 0;
3252 v4l2_prio_open(&btv->prio,&fh->prio);
3254 videobuf_queue_pci_init(&fh->cap, &bttv_video_qops,
3255 btv->c.pci, &btv->s_lock,
3256 V4L2_BUF_TYPE_VIDEO_CAPTURE,
3257 V4L2_FIELD_INTERLACED,
3258 sizeof(struct bttv_buffer),
3260 videobuf_queue_pci_init(&fh->vbi, &bttv_vbi_qops,
3261 btv->c.pci, &btv->s_lock,
3262 V4L2_BUF_TYPE_VBI_CAPTURE,
3264 sizeof(struct bttv_buffer),
3266 set_tvnorm(btv,btv->tvnorm);
3270 /* The V4L2 spec requires one global set of cropping parameters
3271 which only change on request. These are stored in btv->crop[1].
3272 However for compatibility with V4L apps and cropping unaware
3273 V4L2 apps we now reset the cropping parameters as seen through
3274 this fh, which is to say VIDIOC_G_CROP and scaling limit checks
3275 will use btv->crop[0], the default cropping parameters for the
3276 current video standard, and VIDIOC_S_FMT will not implicitely
3277 change the cropping parameters until VIDIOC_S_CROP has been
3279 fh->do_crop = !reset_crop; /* module parameter */
3281 /* Likewise there should be one global set of VBI capture
3282 parameters, but for compatibility with V4L apps and earlier
3283 driver versions each fh has its own parameters. */
3284 bttv_vbi_fmt_reset(&fh->vbi_fmt, btv->tvnorm);
3286 bttv_field_count(btv);
3290 static int bttv_release(struct inode *inode, struct file *file)
3292 struct bttv_fh *fh = file->private_data;
3293 struct bttv *btv = fh->btv;
3295 /* turn off overlay */
3296 if (check_btres(fh, RESOURCE_OVERLAY))
3297 bttv_switch_overlay(btv,fh,NULL);
3299 /* stop video capture */
3300 if (check_btres(fh, RESOURCE_VIDEO_STREAM)) {
3301 videobuf_streamoff(&fh->cap);
3302 free_btres(btv,fh,RESOURCE_VIDEO_STREAM);
3304 if (fh->cap.read_buf) {
3305 buffer_release(&fh->cap,fh->cap.read_buf);
3306 kfree(fh->cap.read_buf);
3308 if (check_btres(fh, RESOURCE_VIDEO_READ)) {
3309 free_btres(btv, fh, RESOURCE_VIDEO_READ);
3312 /* stop vbi capture */
3313 if (check_btres(fh, RESOURCE_VBI)) {
3314 videobuf_stop(&fh->vbi);
3315 free_btres(btv,fh,RESOURCE_VBI);
3319 videobuf_mmap_free(&fh->cap);
3320 videobuf_mmap_free(&fh->vbi);
3321 v4l2_prio_close(&btv->prio,&fh->prio);
3322 file->private_data = NULL;
3326 bttv_field_count(btv);
3331 bttv_mmap(struct file *file, struct vm_area_struct *vma)
3333 struct bttv_fh *fh = file->private_data;
3335 dprintk("bttv%d: mmap type=%s 0x%lx+%ld\n",
3336 fh->btv->c.nr, v4l2_type_names[fh->type],
3337 vma->vm_start, vma->vm_end - vma->vm_start);
3338 return videobuf_mmap_mapper(bttv_queue(fh),vma);
3341 static const struct file_operations bttv_fops =
3343 .owner = THIS_MODULE,
3345 .release = bttv_release,
3346 .ioctl = video_ioctl2,
3347 .compat_ioctl = v4l_compat_ioctl32,
3348 .llseek = no_llseek,
3354 static struct video_device bttv_video_template =
3358 .vidioc_querycap = bttv_querycap,
3359 .vidioc_enum_fmt_cap = bttv_enum_fmt_cap,
3360 .vidioc_g_fmt_cap = bttv_g_fmt_cap,
3361 .vidioc_try_fmt_cap = bttv_try_fmt_cap,
3362 .vidioc_s_fmt_cap = bttv_s_fmt_cap,
3363 .vidioc_enum_fmt_overlay = bttv_enum_fmt_overlay,
3364 .vidioc_g_fmt_overlay = bttv_g_fmt_overlay,
3365 .vidioc_try_fmt_overlay = bttv_try_fmt_overlay,
3366 .vidioc_s_fmt_overlay = bttv_s_fmt_overlay,
3367 .vidioc_enum_fmt_vbi = bttv_enum_fmt_vbi,
3368 .vidioc_g_fmt_vbi = bttv_g_fmt_vbi,
3369 .vidioc_try_fmt_vbi = bttv_try_fmt_vbi,
3370 .vidioc_s_fmt_vbi = bttv_s_fmt_vbi,
3371 .vidioc_g_audio = bttv_g_audio,
3372 .vidioc_s_audio = bttv_s_audio,
3373 .vidioc_cropcap = bttv_cropcap,
3374 .vidioc_reqbufs = bttv_reqbufs,
3375 .vidioc_querybuf = bttv_querybuf,
3376 .vidioc_qbuf = bttv_qbuf,
3377 .vidioc_dqbuf = bttv_dqbuf,
3378 .vidioc_s_std = bttv_s_std,
3379 .vidioc_enum_input = bttv_enum_input,
3380 .vidioc_g_input = bttv_g_input,
3381 .vidioc_s_input = bttv_s_input,
3382 .vidioc_queryctrl = bttv_queryctrl,
3383 .vidioc_g_ctrl = bttv_g_ctrl,
3384 .vidioc_s_ctrl = bttv_s_ctrl,
3385 .vidioc_streamon = bttv_streamon,
3386 .vidioc_streamoff = bttv_streamoff,
3387 .vidioc_g_tuner = bttv_g_tuner,
3388 .vidioc_s_tuner = bttv_s_tuner,
3389 #ifdef CONFIG_VIDEO_V4L1_COMPAT
3390 .vidiocgmbuf = vidiocgmbuf,
3392 .vidioc_g_crop = bttv_g_crop,
3393 .vidioc_s_crop = bttv_s_crop,
3394 .vidioc_g_fbuf = bttv_g_fbuf,
3395 .vidioc_s_fbuf = bttv_s_fbuf,
3396 .vidioc_overlay = bttv_overlay,
3397 .vidioc_g_priority = bttv_g_priority,
3398 .vidioc_s_priority = bttv_s_priority,
3399 .vidioc_g_parm = bttv_g_parm,
3400 .vidioc_g_frequency = bttv_g_frequency,
3401 .vidioc_s_frequency = bttv_s_frequency,
3402 .vidioc_log_status = bttv_log_status,
3403 .vidioc_querystd = bttv_querystd,
3404 #ifdef CONFIG_VIDEO_ADV_DEBUG
3405 .vidioc_g_register = bttv_g_register,
3406 .vidioc_s_register = bttv_s_register,
3408 .tvnorms = BTTV_NORMS,
3409 .current_norm = V4L2_STD_PAL,
3412 /* ----------------------------------------------------------------------- */
3413 /* radio interface */
3415 static int radio_open(struct inode *inode, struct file *file)
3417 int minor = iminor(inode);
3418 struct bttv *btv = NULL;
3422 dprintk("bttv: open minor=%d\n",minor);
3424 for (i = 0; i < bttv_num; i++) {
3425 if (bttvs[i].radio_dev->minor == minor) {
3433 dprintk("bttv%d: open called (radio)\n",btv->c.nr);
3435 /* allocate per filehandle data */
3436 fh = kmalloc(sizeof(*fh), GFP_KERNEL);
3439 file->private_data = fh;
3441 v4l2_prio_open(&btv->prio, &fh->prio);
3443 mutex_lock(&btv->lock);
3447 bttv_call_i2c_clients(btv,AUDC_SET_RADIO,NULL);
3448 audio_input(btv,TVAUDIO_INPUT_RADIO);
3450 mutex_unlock(&btv->lock);
3454 static int radio_release(struct inode *inode, struct file *file)
3456 struct bttv_fh *fh = file->private_data;
3457 struct bttv *btv = fh->btv;
3458 struct rds_command cmd;
3462 bttv_call_i2c_clients(btv, RDS_CMD_CLOSE, &cmd);
3467 static int radio_querycap(struct file *file, void *priv,
3468 struct v4l2_capability *cap)
3470 struct bttv_fh *fh = priv;
3471 struct bttv *btv = fh->btv;
3473 strcpy(cap->driver, "bttv");
3474 strlcpy(cap->card, btv->radio_dev->name, sizeof(cap->card));
3475 sprintf(cap->bus_info, "PCI:%s", pci_name(btv->c.pci));
3476 cap->version = BTTV_VERSION_CODE;
3477 cap->capabilities = V4L2_CAP_TUNER;
3482 static int radio_g_tuner(struct file *file, void *priv, struct v4l2_tuner *t)
3484 struct bttv_fh *fh = priv;
3485 struct bttv *btv = fh->btv;
3487 if (UNSET == bttv_tvcards[btv->c.type].tuner)
3491 mutex_lock(&btv->lock);
3492 memset(t, 0, sizeof(*t));
3493 strcpy(t->name, "Radio");
3494 t->type = V4L2_TUNER_RADIO;
3496 bttv_call_i2c_clients(btv, VIDIOC_G_TUNER, t);
3498 if (btv->audio_mode_gpio)
3499 btv->audio_mode_gpio(btv, t, 0);
3501 mutex_unlock(&btv->lock);
3506 static int radio_enum_input(struct file *file, void *priv,
3507 struct v4l2_input *i)
3512 strcpy(i->name, "Radio");
3513 i->type = V4L2_INPUT_TYPE_TUNER;
3518 static int radio_g_audio(struct file *file, void *priv,
3519 struct v4l2_audio *a)
3521 memset(a, 0, sizeof(*a));
3522 strcpy(a->name, "Radio");
3526 static int radio_s_tuner(struct file *file, void *priv,
3527 struct v4l2_tuner *t)
3529 struct bttv_fh *fh = priv;
3530 struct bttv *btv = fh->btv;
3535 bttv_call_i2c_clients(btv, VIDIOC_G_TUNER, t);
3539 static int radio_s_audio(struct file *file, void *priv,
3540 struct v4l2_audio *a)
3545 static int radio_s_input(struct file *filp, void *priv, unsigned int i)
3550 static int radio_s_std(struct file *file, void *fh, v4l2_std_id *norm)
3555 static int radio_queryctrl(struct file *file, void *priv,
3556 struct v4l2_queryctrl *c)
3558 const struct v4l2_queryctrl *ctrl;
3560 if (c->id < V4L2_CID_BASE ||
3561 c->id >= V4L2_CID_LASTP1)
3564 if (c->id == V4L2_CID_AUDIO_MUTE) {
3565 ctrl = ctrl_by_id(c->id);
3573 static int radio_g_input(struct file *filp, void *priv, unsigned int *i)
3579 static ssize_t radio_read(struct file *file, char __user *data,
3580 size_t count, loff_t *ppos)
3582 struct bttv_fh *fh = file->private_data;
3583 struct bttv *btv = fh->btv;
3584 struct rds_command cmd;
3585 cmd.block_count = count/3;
3587 cmd.instance = file;
3588 cmd.result = -ENODEV;
3590 bttv_call_i2c_clients(btv, RDS_CMD_READ, &cmd);
3595 static unsigned int radio_poll(struct file *file, poll_table *wait)
3597 struct bttv_fh *fh = file->private_data;
3598 struct bttv *btv = fh->btv;
3599 struct rds_command cmd;
3600 cmd.instance = file;
3601 cmd.event_list = wait;
3602 cmd.result = -ENODEV;
3603 bttv_call_i2c_clients(btv, RDS_CMD_POLL, &cmd);
3608 static const struct file_operations radio_fops =
3610 .owner = THIS_MODULE,
3613 .release = radio_release,
3614 .compat_ioctl = v4l_compat_ioctl32,
3615 .ioctl = video_ioctl2,
3616 .llseek = no_llseek,
3620 static struct video_device radio_template =
3622 .fops = &radio_fops,
3624 .vidioc_querycap = radio_querycap,
3625 .vidioc_g_tuner = radio_g_tuner,
3626 .vidioc_enum_input = radio_enum_input,
3627 .vidioc_g_audio = radio_g_audio,
3628 .vidioc_s_tuner = radio_s_tuner,
3629 .vidioc_s_audio = radio_s_audio,
3630 .vidioc_s_input = radio_s_input,
3631 .vidioc_s_std = radio_s_std,
3632 .vidioc_queryctrl = radio_queryctrl,
3633 .vidioc_g_input = radio_g_input,
3634 .vidioc_g_ctrl = bttv_g_ctrl,
3635 .vidioc_s_ctrl = bttv_s_ctrl,
3636 .vidioc_g_frequency = bttv_g_frequency,
3637 .vidioc_s_frequency = bttv_s_frequency,
3640 /* ----------------------------------------------------------------------- */
3641 /* some debug code */
3643 static int bttv_risc_decode(u32 risc)
3645 static char *instr[16] = {
3646 [ BT848_RISC_WRITE >> 28 ] = "write",
3647 [ BT848_RISC_SKIP >> 28 ] = "skip",
3648 [ BT848_RISC_WRITEC >> 28 ] = "writec",
3649 [ BT848_RISC_JUMP >> 28 ] = "jump",
3650 [ BT848_RISC_SYNC >> 28 ] = "sync",
3651 [ BT848_RISC_WRITE123 >> 28 ] = "write123",
3652 [ BT848_RISC_SKIP123 >> 28 ] = "skip123",
3653 [ BT848_RISC_WRITE1S23 >> 28 ] = "write1s23",
3655 static int incr[16] = {
3656 [ BT848_RISC_WRITE >> 28 ] = 2,
3657 [ BT848_RISC_JUMP >> 28 ] = 2,
3658 [ BT848_RISC_SYNC >> 28 ] = 2,
3659 [ BT848_RISC_WRITE123 >> 28 ] = 5,
3660 [ BT848_RISC_SKIP123 >> 28 ] = 2,
3661 [ BT848_RISC_WRITE1S23 >> 28 ] = 3,
3663 static char *bits[] = {
3664 "be0", "be1", "be2", "be3/resync",
3665 "set0", "set1", "set2", "set3",
3666 "clr0", "clr1", "clr2", "clr3",
3667 "irq", "res", "eol", "sol",
3671 printk("0x%08x [ %s", risc,
3672 instr[risc >> 28] ? instr[risc >> 28] : "INVALID");
3673 for (i = ARRAY_SIZE(bits)-1; i >= 0; i--)
3674 if (risc & (1 << (i + 12)))
3675 printk(" %s",bits[i]);
3676 printk(" count=%d ]\n", risc & 0xfff);
3677 return incr[risc >> 28] ? incr[risc >> 28] : 1;
3680 static void bttv_risc_disasm(struct bttv *btv,
3681 struct btcx_riscmem *risc)
3685 printk("%s: risc disasm: %p [dma=0x%08lx]\n",
3686 btv->c.name, risc->cpu, (unsigned long)risc->dma);
3687 for (i = 0; i < (risc->size >> 2); i += n) {
3688 printk("%s: 0x%lx: ", btv->c.name,
3689 (unsigned long)(risc->dma + (i<<2)));
3690 n = bttv_risc_decode(risc->cpu[i]);
3691 for (j = 1; j < n; j++)
3692 printk("%s: 0x%lx: 0x%08x [ arg #%d ]\n",
3693 btv->c.name, (unsigned long)(risc->dma + ((i+j)<<2)),
3695 if (0 == risc->cpu[i])
3700 static void bttv_print_riscaddr(struct bttv *btv)
3702 printk(" main: %08Lx\n",
3703 (unsigned long long)btv->main.dma);
3704 printk(" vbi : o=%08Lx e=%08Lx\n",
3705 btv->cvbi ? (unsigned long long)btv->cvbi->top.dma : 0,
3706 btv->cvbi ? (unsigned long long)btv->cvbi->bottom.dma : 0);
3707 printk(" cap : o=%08Lx e=%08Lx\n",
3708 btv->curr.top ? (unsigned long long)btv->curr.top->top.dma : 0,
3709 btv->curr.bottom ? (unsigned long long)btv->curr.bottom->bottom.dma : 0);
3710 printk(" scr : o=%08Lx e=%08Lx\n",
3711 btv->screen ? (unsigned long long)btv->screen->top.dma : 0,
3712 btv->screen ? (unsigned long long)btv->screen->bottom.dma : 0);
3713 bttv_risc_disasm(btv, &btv->main);
3716 /* ----------------------------------------------------------------------- */
3719 static char *irq_name[] = {
3720 "FMTCHG", // format change detected (525 vs. 625)
3721 "VSYNC", // vertical sync (new field)
3722 "HSYNC", // horizontal sync
3723 "OFLOW", // chroma/luma AGC overflow
3724 "HLOCK", // horizontal lock changed
3725 "VPRES", // video presence changed
3727 "I2CDONE", // hw irc operation finished
3728 "GPINT", // gpio port triggered irq
3730 "RISCI", // risc instruction triggered irq
3731 "FBUS", // pixel data fifo dropped data (high pci bus latencies)
3732 "FTRGT", // pixel data fifo overrun
3733 "FDSR", // fifo data stream resyncronisation
3734 "PPERR", // parity error (data transfer)
3735 "RIPERR", // parity error (read risc instructions)
3736 "PABORT", // pci abort
3737 "OCERR", // risc instruction error
3738 "SCERR", // syncronisation error
3741 static void bttv_print_irqbits(u32 print, u32 mark)
3746 for (i = 0; i < ARRAY_SIZE(irq_name); i++) {
3747 if (print & (1 << i))
3748 printk(" %s",irq_name[i]);
3749 if (mark & (1 << i))
3754 static void bttv_irq_debug_low_latency(struct bttv *btv, u32 rc)
3756 printk("bttv%d: irq: skipped frame [main=%lx,o_vbi=%lx,o_field=%lx,rc=%lx]\n",
3758 (unsigned long)btv->main.dma,
3759 (unsigned long)btv->main.cpu[RISC_SLOT_O_VBI+1],
3760 (unsigned long)btv->main.cpu[RISC_SLOT_O_FIELD+1],
3763 if (0 == (btread(BT848_DSTATUS) & BT848_DSTATUS_HLOC)) {
3764 printk("bttv%d: Oh, there (temporarely?) is no input signal. "
3765 "Ok, then this is harmless, don't worry ;)\n",
3769 printk("bttv%d: Uhm. Looks like we have unusual high IRQ latencies.\n",
3771 printk("bttv%d: Lets try to catch the culpit red-handed ...\n",
3777 bttv_irq_next_video(struct bttv *btv, struct bttv_buffer_set *set)
3779 struct bttv_buffer *item;
3781 memset(set,0,sizeof(*set));
3783 /* capture request ? */
3784 if (!list_empty(&btv->capture)) {
3786 item = list_entry(btv->capture.next, struct bttv_buffer, vb.queue);
3787 if (V4L2_FIELD_HAS_TOP(item->vb.field))
3789 if (V4L2_FIELD_HAS_BOTTOM(item->vb.field))
3792 /* capture request for other field ? */
3793 if (!V4L2_FIELD_HAS_BOTH(item->vb.field) &&
3794 (item->vb.queue.next != &btv->capture)) {
3795 item = list_entry(item->vb.queue.next, struct bttv_buffer, vb.queue);
3796 if (!V4L2_FIELD_HAS_BOTH(item->vb.field)) {
3797 if (NULL == set->top &&
3798 V4L2_FIELD_TOP == item->vb.field) {
3801 if (NULL == set->bottom &&
3802 V4L2_FIELD_BOTTOM == item->vb.field) {
3805 if (NULL != set->top && NULL != set->bottom)
3811 /* screen overlay ? */
3812 if (NULL != btv->screen) {
3813 if (V4L2_FIELD_HAS_BOTH(btv->screen->vb.field)) {
3814 if (NULL == set->top && NULL == set->bottom) {
3815 set->top = btv->screen;
3816 set->bottom = btv->screen;
3819 if (V4L2_FIELD_TOP == btv->screen->vb.field &&
3821 set->top = btv->screen;
3823 if (V4L2_FIELD_BOTTOM == btv->screen->vb.field &&
3824 NULL == set->bottom) {
3825 set->bottom = btv->screen;
3830 dprintk("bttv%d: next set: top=%p bottom=%p [screen=%p,irq=%d,%d]\n",
3831 btv->c.nr,set->top, set->bottom,
3832 btv->screen,set->frame_irq,set->top_irq);
3837 bttv_irq_wakeup_video(struct bttv *btv, struct bttv_buffer_set *wakeup,
3838 struct bttv_buffer_set *curr, unsigned int state)
3842 do_gettimeofday(&ts);
3844 if (wakeup->top == wakeup->bottom) {
3845 if (NULL != wakeup->top && curr->top != wakeup->top) {
3847 printk("bttv%d: wakeup: both=%p\n",btv->c.nr,wakeup->top);
3848 wakeup->top->vb.ts = ts;
3849 wakeup->top->vb.field_count = btv->field_count;
3850 wakeup->top->vb.state = state;
3851 wake_up(&wakeup->top->vb.done);
3854 if (NULL != wakeup->top && curr->top != wakeup->top) {
3856 printk("bttv%d: wakeup: top=%p\n",btv->c.nr,wakeup->top);
3857 wakeup->top->vb.ts = ts;
3858 wakeup->top->vb.field_count = btv->field_count;
3859 wakeup->top->vb.state = state;
3860 wake_up(&wakeup->top->vb.done);
3862 if (NULL != wakeup->bottom && curr->bottom != wakeup->bottom) {
3864 printk("bttv%d: wakeup: bottom=%p\n",btv->c.nr,wakeup->bottom);
3865 wakeup->bottom->vb.ts = ts;
3866 wakeup->bottom->vb.field_count = btv->field_count;
3867 wakeup->bottom->vb.state = state;
3868 wake_up(&wakeup->bottom->vb.done);
3874 bttv_irq_wakeup_vbi(struct bttv *btv, struct bttv_buffer *wakeup,
3882 do_gettimeofday(&ts);
3884 wakeup->vb.field_count = btv->field_count;
3885 wakeup->vb.state = state;
3886 wake_up(&wakeup->vb.done);
3889 static void bttv_irq_timeout(unsigned long data)
3891 struct bttv *btv = (struct bttv *)data;
3892 struct bttv_buffer_set old,new;
3893 struct bttv_buffer *ovbi;
3894 struct bttv_buffer *item;
3895 unsigned long flags;
3898 printk(KERN_INFO "bttv%d: timeout: drop=%d irq=%d/%d, risc=%08x, ",
3899 btv->c.nr, btv->framedrop, btv->irq_me, btv->irq_total,
3900 btread(BT848_RISC_COUNT));
3901 bttv_print_irqbits(btread(BT848_INT_STAT),0);
3905 spin_lock_irqsave(&btv->s_lock,flags);
3907 /* deactivate stuff */
3908 memset(&new,0,sizeof(new));
3914 bttv_buffer_activate_video(btv, &new);
3915 bttv_buffer_activate_vbi(btv, NULL);
3916 bttv_set_dma(btv, 0);
3919 bttv_irq_wakeup_video(btv, &old, &new, VIDEOBUF_ERROR);
3920 bttv_irq_wakeup_vbi(btv, ovbi, VIDEOBUF_ERROR);
3922 /* cancel all outstanding capture / vbi requests */
3923 while (!list_empty(&btv->capture)) {
3924 item = list_entry(btv->capture.next, struct bttv_buffer, vb.queue);
3925 list_del(&item->vb.queue);
3926 item->vb.state = VIDEOBUF_ERROR;
3927 wake_up(&item->vb.done);
3929 while (!list_empty(&btv->vcapture)) {
3930 item = list_entry(btv->vcapture.next, struct bttv_buffer, vb.queue);
3931 list_del(&item->vb.queue);
3932 item->vb.state = VIDEOBUF_ERROR;
3933 wake_up(&item->vb.done);
3937 spin_unlock_irqrestore(&btv->s_lock,flags);
3941 bttv_irq_wakeup_top(struct bttv *btv)
3943 struct bttv_buffer *wakeup = btv->curr.top;
3948 spin_lock(&btv->s_lock);
3949 btv->curr.top_irq = 0;
3950 btv->curr.top = NULL;
3951 bttv_risc_hook(btv, RISC_SLOT_O_FIELD, NULL, 0);
3953 do_gettimeofday(&wakeup->vb.ts);
3954 wakeup->vb.field_count = btv->field_count;
3955 wakeup->vb.state = VIDEOBUF_DONE;
3956 wake_up(&wakeup->vb.done);
3957 spin_unlock(&btv->s_lock);
3960 static inline int is_active(struct btcx_riscmem *risc, u32 rc)
3964 if (rc > risc->dma + risc->size)
3970 bttv_irq_switch_video(struct bttv *btv)
3972 struct bttv_buffer_set new;
3973 struct bttv_buffer_set old;
3976 spin_lock(&btv->s_lock);
3978 /* new buffer set */
3979 bttv_irq_next_video(btv, &new);
3980 rc = btread(BT848_RISC_COUNT);
3981 if ((btv->curr.top && is_active(&btv->curr.top->top, rc)) ||
3982 (btv->curr.bottom && is_active(&btv->curr.bottom->bottom, rc))) {
3985 bttv_irq_debug_low_latency(btv, rc);
3986 spin_unlock(&btv->s_lock);
3993 btv->loop_irq &= ~1;
3994 bttv_buffer_activate_video(btv, &new);
3995 bttv_set_dma(btv, 0);
3998 if (UNSET != btv->new_input) {
3999 video_mux(btv,btv->new_input);
4000 btv->new_input = UNSET;
4003 /* wake up finished buffers */
4004 bttv_irq_wakeup_video(btv, &old, &new, VIDEOBUF_DONE);
4005 spin_unlock(&btv->s_lock);
4009 bttv_irq_switch_vbi(struct bttv *btv)
4011 struct bttv_buffer *new = NULL;
4012 struct bttv_buffer *old;
4015 spin_lock(&btv->s_lock);
4017 if (!list_empty(&btv->vcapture))
4018 new = list_entry(btv->vcapture.next, struct bttv_buffer, vb.queue);
4021 rc = btread(BT848_RISC_COUNT);
4022 if (NULL != old && (is_active(&old->top, rc) ||
4023 is_active(&old->bottom, rc))) {
4026 bttv_irq_debug_low_latency(btv, rc);
4027 spin_unlock(&btv->s_lock);
4033 btv->loop_irq &= ~4;
4034 bttv_buffer_activate_vbi(btv, new);
4035 bttv_set_dma(btv, 0);
4037 bttv_irq_wakeup_vbi(btv, old, VIDEOBUF_DONE);
4038 spin_unlock(&btv->s_lock);
4041 static irqreturn_t bttv_irq(int irq, void *dev_id)
4049 btv=(struct bttv *)dev_id;
4051 if (btv->custom_irq)
4052 handled = btv->custom_irq(btv);
4056 /* get/clear interrupt status bits */
4057 stat=btread(BT848_INT_STAT);
4058 astat=stat&btread(BT848_INT_MASK);
4062 btwrite(stat,BT848_INT_STAT);
4064 /* get device status bits */
4065 dstat=btread(BT848_DSTATUS);
4068 printk(KERN_DEBUG "bttv%d: irq loop=%d fc=%d "
4069 "riscs=%x, riscc=%08x, ",
4070 btv->c.nr, count, btv->field_count,
4071 stat>>28, btread(BT848_RISC_COUNT));
4072 bttv_print_irqbits(stat,astat);
4073 if (stat & BT848_INT_HLOCK)
4074 printk(" HLOC => %s", (dstat & BT848_DSTATUS_HLOC)
4076 if (stat & BT848_INT_VPRES)
4077 printk(" PRES => %s", (dstat & BT848_DSTATUS_PRES)
4079 if (stat & BT848_INT_FMTCHG)
4080 printk(" NUML => %s", (dstat & BT848_DSTATUS_NUML)
4085 if (astat&BT848_INT_VSYNC)
4088 if ((astat & BT848_INT_GPINT) && btv->remote) {
4089 wake_up(&btv->gpioq);
4090 bttv_input_irq(btv);
4093 if (astat & BT848_INT_I2CDONE) {
4094 btv->i2c_done = stat;
4095 wake_up(&btv->i2c_queue);
4098 if ((astat & BT848_INT_RISCI) && (stat & (4<<28)))
4099 bttv_irq_switch_vbi(btv);
4101 if ((astat & BT848_INT_RISCI) && (stat & (2<<28)))
4102 bttv_irq_wakeup_top(btv);
4104 if ((astat & BT848_INT_RISCI) && (stat & (1<<28)))
4105 bttv_irq_switch_video(btv);
4107 if ((astat & BT848_INT_HLOCK) && btv->opt_automute)
4108 audio_mute(btv, btv->mute); /* trigger automute */
4110 if (astat & (BT848_INT_SCERR|BT848_INT_OCERR)) {
4111 printk(KERN_INFO "bttv%d: %s%s @ %08x,",btv->c.nr,
4112 (astat & BT848_INT_SCERR) ? "SCERR" : "",
4113 (astat & BT848_INT_OCERR) ? "OCERR" : "",
4114 btread(BT848_RISC_COUNT));
4115 bttv_print_irqbits(stat,astat);
4118 bttv_print_riscaddr(btv);
4120 if (fdsr && astat & BT848_INT_FDSR) {
4121 printk(KERN_INFO "bttv%d: FDSR @ %08x\n",
4122 btv->c.nr,btread(BT848_RISC_COUNT));
4124 bttv_print_riscaddr(btv);
4130 if (count > 8 || !(astat & BT848_INT_GPINT)) {
4131 btwrite(0, BT848_INT_MASK);
4134 "bttv%d: IRQ lockup, cleared int mask [", btv->c.nr);
4137 "bttv%d: IRQ lockup, clearing GPINT from int mask [", btv->c.nr);
4139 btwrite(btread(BT848_INT_MASK) & (-1 ^ BT848_INT_GPINT),
4143 bttv_print_irqbits(stat,astat);
4151 return IRQ_RETVAL(handled);
4155 /* ----------------------------------------------------------------------- */
4156 /* initialitation */
4158 static struct video_device *vdev_init(struct bttv *btv,
4159 const struct video_device *template,
4160 const char *type_name,
4163 struct video_device *vfd;
4165 vfd = video_device_alloc();
4170 vfd->dev = &btv->c.pci->dev;
4171 vfd->release = video_device_release;
4173 snprintf(vfd->name, sizeof(vfd->name), "BT%d%s %s (%s)",
4174 btv->id, (btv->id==848 && btv->revision==0x12) ? "A" : "",
4175 type_name, bttv_tvcards[btv->c.type].name);
4179 static void bttv_unregister_video(struct bttv *btv)
4181 if (btv->video_dev) {
4182 if (-1 != btv->video_dev->minor)
4183 video_unregister_device(btv->video_dev);
4185 video_device_release(btv->video_dev);
4186 btv->video_dev = NULL;
4189 if (-1 != btv->vbi_dev->minor)
4190 video_unregister_device(btv->vbi_dev);
4192 video_device_release(btv->vbi_dev);
4193 btv->vbi_dev = NULL;
4195 if (btv->radio_dev) {
4196 if (-1 != btv->radio_dev->minor)
4197 video_unregister_device(btv->radio_dev);
4199 video_device_release(btv->radio_dev);
4200 btv->radio_dev = NULL;
4204 /* register video4linux devices */
4205 static int __devinit bttv_register_video(struct bttv *btv)
4207 int video_type = VID_TYPE_CAPTURE |
4212 if (no_overlay <= 0) {
4213 bttv_video_template.type |= VID_TYPE_OVERLAY;
4215 printk("bttv: Overlay support disabled.\n");
4219 btv->video_dev = vdev_init(btv, &bttv_video_template,
4220 "video", video_type);
4222 if (NULL == btv->video_dev)
4224 if (video_register_device(btv->video_dev,VFL_TYPE_GRABBER,video_nr)<0)
4226 printk(KERN_INFO "bttv%d: registered device video%d\n",
4227 btv->c.nr,btv->video_dev->minor & 0x1f);
4228 if (device_create_file(&btv->video_dev->class_dev,
4229 &dev_attr_card)<0) {
4230 printk(KERN_ERR "bttv%d: device_create_file 'card' "
4231 "failed\n", btv->c.nr);
4236 btv->vbi_dev = vdev_init(btv, &bttv_video_template,
4237 "vbi", VID_TYPE_TUNER | VID_TYPE_TELETEXT);
4239 if (NULL == btv->vbi_dev)
4241 if (video_register_device(btv->vbi_dev,VFL_TYPE_VBI,vbi_nr)<0)
4243 printk(KERN_INFO "bttv%d: registered device vbi%d\n",
4244 btv->c.nr,btv->vbi_dev->minor & 0x1f);
4246 if (!btv->has_radio)
4249 btv->radio_dev = vdev_init(btv, &radio_template,
4250 "radio", VID_TYPE_TUNER);
4251 if (NULL == btv->radio_dev)
4253 if (video_register_device(btv->radio_dev, VFL_TYPE_RADIO,radio_nr)<0)
4255 printk(KERN_INFO "bttv%d: registered device radio%d\n",
4256 btv->c.nr,btv->radio_dev->minor & 0x1f);
4262 bttv_unregister_video(btv);
4267 /* on OpenFirmware machines (PowerMac at least), PCI memory cycle */
4268 /* response on cards with no firmware is not enabled by OF */
4269 static void pci_set_command(struct pci_dev *dev)
4271 #if defined(__powerpc__)
4274 pci_read_config_dword(dev, PCI_COMMAND, &cmd);
4275 cmd = (cmd | PCI_COMMAND_MEMORY );
4276 pci_write_config_dword(dev, PCI_COMMAND, cmd);
4280 static int __devinit bttv_probe(struct pci_dev *dev,
4281 const struct pci_device_id *pci_id)
4287 if (bttv_num == BTTV_MAX)
4289 printk(KERN_INFO "bttv: Bt8xx card found (%d).\n", bttv_num);
4290 btv=&bttvs[bttv_num];
4291 memset(btv,0,sizeof(*btv));
4292 btv->c.nr = bttv_num;
4293 sprintf(btv->c.name,"bttv%d",btv->c.nr);
4295 /* initialize structs / fill in defaults */
4296 mutex_init(&btv->lock);
4297 spin_lock_init(&btv->s_lock);
4298 spin_lock_init(&btv->gpio_lock);
4299 init_waitqueue_head(&btv->gpioq);
4300 init_waitqueue_head(&btv->i2c_queue);
4301 INIT_LIST_HEAD(&btv->c.subs);
4302 INIT_LIST_HEAD(&btv->capture);
4303 INIT_LIST_HEAD(&btv->vcapture);
4304 v4l2_prio_init(&btv->prio);
4306 init_timer(&btv->timeout);
4307 btv->timeout.function = bttv_irq_timeout;
4308 btv->timeout.data = (unsigned long)btv;
4311 btv->tuner_type = UNSET;
4312 btv->new_input = UNSET;
4313 btv->has_radio=radio[btv->c.nr];
4315 /* pci stuff (init, get irq/mmio, ... */
4317 btv->id = dev->device;
4318 if (pci_enable_device(dev)) {
4319 printk(KERN_WARNING "bttv%d: Can't enable device.\n",
4323 if (pci_set_dma_mask(dev, DMA_32BIT_MASK)) {
4324 printk(KERN_WARNING "bttv%d: No suitable DMA available.\n",
4328 if (!request_mem_region(pci_resource_start(dev,0),
4329 pci_resource_len(dev,0),
4331 printk(KERN_WARNING "bttv%d: can't request iomem (0x%llx).\n",
4333 (unsigned long long)pci_resource_start(dev,0));
4336 pci_set_master(dev);
4337 pci_set_command(dev);
4338 pci_set_drvdata(dev,btv);
4340 pci_read_config_byte(dev, PCI_CLASS_REVISION, &btv->revision);
4341 pci_read_config_byte(dev, PCI_LATENCY_TIMER, &lat);
4342 printk(KERN_INFO "bttv%d: Bt%d (rev %d) at %s, ",
4343 bttv_num,btv->id, btv->revision, pci_name(dev));
4344 printk("irq: %d, latency: %d, mmio: 0x%llx\n",
4345 btv->c.pci->irq, lat,
4346 (unsigned long long)pci_resource_start(dev,0));
4349 btv->bt848_mmio = ioremap(pci_resource_start(dev, 0), 0x1000);
4350 if (NULL == btv->bt848_mmio) {
4351 printk("bttv%d: ioremap() failed\n", btv->c.nr);
4359 /* disable irqs, register irq handler */
4360 btwrite(0, BT848_INT_MASK);
4361 result = request_irq(btv->c.pci->irq, bttv_irq,
4362 IRQF_SHARED | IRQF_DISABLED,btv->c.name,(void *)btv);
4364 printk(KERN_ERR "bttv%d: can't get IRQ %d\n",
4365 bttv_num,btv->c.pci->irq);
4369 if (0 != bttv_handle_chipset(btv)) {
4374 /* init options from insmod args */
4375 btv->opt_combfilter = combfilter;
4376 btv->opt_lumafilter = lumafilter;
4377 btv->opt_automute = automute;
4378 btv->opt_chroma_agc = chroma_agc;
4379 btv->opt_adc_crush = adc_crush;
4380 btv->opt_vcr_hack = vcr_hack;
4381 btv->opt_whitecrush_upper = whitecrush_upper;
4382 btv->opt_whitecrush_lower = whitecrush_lower;
4383 btv->opt_uv_ratio = uv_ratio;
4384 btv->opt_full_luma_range = full_luma_range;
4385 btv->opt_coring = coring;
4387 /* fill struct bttv with some useful defaults */
4388 btv->init.btv = btv;
4389 btv->init.ov.w.width = 320;
4390 btv->init.ov.w.height = 240;
4391 btv->init.fmt = format_by_fourcc(V4L2_PIX_FMT_BGR24);
4392 btv->init.width = 320;
4393 btv->init.height = 240;
4396 /* initialize hardware */
4398 bttv_gpio_tracking(btv,"pre-init");
4400 bttv_risc_init_main(btv);
4404 btwrite(0x00, BT848_GPIO_REG_INP);
4405 btwrite(0x00, BT848_GPIO_OUT_EN);
4407 bttv_gpio_tracking(btv,"init");
4409 /* needs to be done before i2c is registered */
4410 bttv_init_card1(btv);
4412 /* register i2c + gpio */
4415 /* some card-specific stuff (needs working i2c) */
4416 bttv_init_card2(btv);
4419 /* register video4linux + input */
4420 if (!bttv_tvcards[btv->c.type].no_video) {
4421 bttv_register_video(btv);
4422 bt848_bright(btv,32768);
4423 bt848_contrast(btv,32768);
4424 bt848_hue(btv,32768);
4425 bt848_sat(btv,32768);
4427 set_input(btv, 0, btv->tvnorm);
4428 bttv_crop_reset(&btv->crop[0], btv->tvnorm);
4429 btv->crop[1] = btv->crop[0]; /* current = default */
4430 disclaim_vbi_lines(btv);
4431 disclaim_video_lines(btv);
4434 /* add subdevices and autoload dvb-bt8xx if needed */
4435 if (bttv_tvcards[btv->c.type].has_dvb) {
4436 bttv_sub_add_device(&btv->c, "dvb");
4437 request_modules(btv);
4440 bttv_input_init(btv);
4442 /* everything is fine */
4447 free_irq(btv->c.pci->irq,btv);
4450 if (btv->bt848_mmio)
4451 iounmap(btv->bt848_mmio);
4452 release_mem_region(pci_resource_start(btv->c.pci,0),
4453 pci_resource_len(btv->c.pci,0));
4454 pci_set_drvdata(dev,NULL);
4458 static void __devexit bttv_remove(struct pci_dev *pci_dev)
4460 struct bttv *btv = pci_get_drvdata(pci_dev);
4463 printk("bttv%d: unloading\n",btv->c.nr);
4465 /* shutdown everything (DMA+IRQs) */
4466 btand(~15, BT848_GPIO_DMA_CTL);
4467 btwrite(0, BT848_INT_MASK);
4468 btwrite(~0x0, BT848_INT_STAT);
4469 btwrite(0x0, BT848_GPIO_OUT_EN);
4471 bttv_gpio_tracking(btv,"cleanup");
4473 /* tell gpio modules we are leaving ... */
4475 wake_up(&btv->gpioq);
4476 bttv_input_fini(btv);
4477 bttv_sub_del_devices(&btv->c);
4479 /* unregister i2c_bus + input */
4482 /* unregister video4linux */
4483 bttv_unregister_video(btv);
4485 /* free allocated memory */
4486 btcx_riscmem_free(btv->c.pci,&btv->main);
4488 /* free ressources */
4489 free_irq(btv->c.pci->irq,btv);
4490 iounmap(btv->bt848_mmio);
4491 release_mem_region(pci_resource_start(btv->c.pci,0),
4492 pci_resource_len(btv->c.pci,0));
4494 pci_set_drvdata(pci_dev, NULL);
4499 static int bttv_suspend(struct pci_dev *pci_dev, pm_message_t state)
4501 struct bttv *btv = pci_get_drvdata(pci_dev);
4502 struct bttv_buffer_set idle;
4503 unsigned long flags;
4505 dprintk("bttv%d: suspend %d\n", btv->c.nr, state.event);
4507 /* stop dma + irqs */
4508 spin_lock_irqsave(&btv->s_lock,flags);
4509 memset(&idle, 0, sizeof(idle));
4510 btv->state.video = btv->curr;
4511 btv->state.vbi = btv->cvbi;
4512 btv->state.loop_irq = btv->loop_irq;
4515 bttv_buffer_activate_video(btv, &idle);
4516 bttv_buffer_activate_vbi(btv, NULL);
4517 bttv_set_dma(btv, 0);
4518 btwrite(0, BT848_INT_MASK);
4519 spin_unlock_irqrestore(&btv->s_lock,flags);
4521 /* save bt878 state */
4522 btv->state.gpio_enable = btread(BT848_GPIO_OUT_EN);
4523 btv->state.gpio_data = gpio_read();
4525 /* save pci state */
4526 pci_save_state(pci_dev);
4527 if (0 != pci_set_power_state(pci_dev, pci_choose_state(pci_dev, state))) {
4528 pci_disable_device(pci_dev);
4529 btv->state.disabled = 1;
4534 static int bttv_resume(struct pci_dev *pci_dev)
4536 struct bttv *btv = pci_get_drvdata(pci_dev);
4537 unsigned long flags;
4540 dprintk("bttv%d: resume\n", btv->c.nr);
4542 /* restore pci state */
4543 if (btv->state.disabled) {
4544 err=pci_enable_device(pci_dev);
4546 printk(KERN_WARNING "bttv%d: Can't enable device.\n",
4550 btv->state.disabled = 0;
4552 err=pci_set_power_state(pci_dev, PCI_D0);
4554 pci_disable_device(pci_dev);
4555 printk(KERN_WARNING "bttv%d: Can't enable device.\n",
4557 btv->state.disabled = 1;
4561 pci_restore_state(pci_dev);
4563 /* restore bt878 state */
4564 bttv_reinit_bt848(btv);
4565 gpio_inout(0xffffff, btv->state.gpio_enable);
4566 gpio_write(btv->state.gpio_data);
4569 spin_lock_irqsave(&btv->s_lock,flags);
4570 btv->curr = btv->state.video;
4571 btv->cvbi = btv->state.vbi;
4572 btv->loop_irq = btv->state.loop_irq;
4573 bttv_buffer_activate_video(btv, &btv->curr);
4574 bttv_buffer_activate_vbi(btv, btv->cvbi);
4575 bttv_set_dma(btv, 0);
4576 spin_unlock_irqrestore(&btv->s_lock,flags);
4581 static struct pci_device_id bttv_pci_tbl[] = {
4582 {PCI_VENDOR_ID_BROOKTREE, PCI_DEVICE_ID_BT848,
4583 PCI_ANY_ID, PCI_ANY_ID, 0, 0, 0},
4584 {PCI_VENDOR_ID_BROOKTREE, PCI_DEVICE_ID_BT849,
4585 PCI_ANY_ID, PCI_ANY_ID, 0, 0, 0},
4586 {PCI_VENDOR_ID_BROOKTREE, PCI_DEVICE_ID_BT878,
4587 PCI_ANY_ID, PCI_ANY_ID, 0, 0, 0},
4588 {PCI_VENDOR_ID_BROOKTREE, PCI_DEVICE_ID_BT879,
4589 PCI_ANY_ID, PCI_ANY_ID, 0, 0, 0},
4593 MODULE_DEVICE_TABLE(pci, bttv_pci_tbl);
4595 static struct pci_driver bttv_pci_driver = {
4597 .id_table = bttv_pci_tbl,
4598 .probe = bttv_probe,
4599 .remove = __devexit_p(bttv_remove),
4601 .suspend = bttv_suspend,
4602 .resume = bttv_resume,
4606 static int __init bttv_init_module(void)
4612 printk(KERN_INFO "bttv: driver version %d.%d.%d loaded\n",
4613 (BTTV_VERSION_CODE >> 16) & 0xff,
4614 (BTTV_VERSION_CODE >> 8) & 0xff,
4615 BTTV_VERSION_CODE & 0xff);
4617 printk(KERN_INFO "bttv: snapshot date %04d-%02d-%02d\n",
4618 SNAPSHOT/10000, (SNAPSHOT/100)%100, SNAPSHOT%100);
4620 if (gbuffers < 2 || gbuffers > VIDEO_MAX_FRAME)
4622 if (gbufsize < 0 || gbufsize > BTTV_MAX_FBUF)
4623 gbufsize = BTTV_MAX_FBUF;
4624 gbufsize = (gbufsize + PAGE_SIZE - 1) & PAGE_MASK;
4626 printk(KERN_INFO "bttv: using %d buffers with %dk (%d pages) each for capture\n",
4627 gbuffers, gbufsize >> 10, gbufsize >> PAGE_SHIFT);
4629 bttv_check_chipset();
4631 ret = bus_register(&bttv_sub_bus_type);
4633 printk(KERN_WARNING "bttv: bus_register error: %d\n", ret);
4636 ret = pci_register_driver(&bttv_pci_driver);
4638 bus_unregister(&bttv_sub_bus_type);
4643 static void __exit bttv_cleanup_module(void)
4645 pci_unregister_driver(&bttv_pci_driver);
4646 bus_unregister(&bttv_sub_bus_type);
4649 module_init(bttv_init_module);
4650 module_exit(bttv_cleanup_module);