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/v4l2-ioctl.h>
49 #include <media/tvaudio.h>
50 #include <media/msp3400.h>
52 #include <linux/dma-mapping.h>
55 #include <asm/byteorder.h>
57 #include <media/rds.h>
60 unsigned int bttv_num; /* number of Bt848s in use */
61 struct bttv bttvs[BTTV_MAX];
63 unsigned int bttv_debug;
64 unsigned int bttv_verbose = 1;
65 unsigned int bttv_gpio;
67 /* config variables */
69 static unsigned int bigendian=1;
71 static unsigned int bigendian;
73 static unsigned int radio[BTTV_MAX];
74 static unsigned int irq_debug;
75 static unsigned int gbuffers = 8;
76 static unsigned int gbufsize = 0x208000;
77 static unsigned int reset_crop = 1;
79 static int video_nr[BTTV_MAX] = { [0 ... (BTTV_MAX-1)] = -1 };
80 static int radio_nr[BTTV_MAX] = { [0 ... (BTTV_MAX-1)] = -1 };
81 static int vbi_nr[BTTV_MAX] = { [0 ... (BTTV_MAX-1)] = -1 };
82 static int debug_latency;
84 static unsigned int fdsr;
87 static unsigned int combfilter;
88 static unsigned int lumafilter;
89 static unsigned int automute = 1;
90 static unsigned int chroma_agc;
91 static unsigned int adc_crush = 1;
92 static unsigned int whitecrush_upper = 0xCF;
93 static unsigned int whitecrush_lower = 0x7F;
94 static unsigned int vcr_hack;
95 static unsigned int irq_iswitch;
96 static unsigned int uv_ratio = 50;
97 static unsigned int full_luma_range;
98 static unsigned int coring;
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(gbuffers, int, 0444);
112 module_param(gbufsize, int, 0444);
113 module_param(reset_crop, int, 0444);
115 module_param(v4l2, int, 0644);
116 module_param(bigendian, int, 0644);
117 module_param(irq_iswitch, int, 0644);
118 module_param(combfilter, int, 0444);
119 module_param(lumafilter, int, 0444);
120 module_param(automute, int, 0444);
121 module_param(chroma_agc, int, 0444);
122 module_param(adc_crush, int, 0444);
123 module_param(whitecrush_upper, int, 0444);
124 module_param(whitecrush_lower, int, 0444);
125 module_param(vcr_hack, int, 0444);
126 module_param(uv_ratio, int, 0444);
127 module_param(full_luma_range, int, 0444);
128 module_param(coring, int, 0444);
130 module_param_array(radio, int, NULL, 0444);
131 module_param_array(video_nr, int, NULL, 0444);
132 module_param_array(radio_nr, int, NULL, 0444);
133 module_param_array(vbi_nr, int, NULL, 0444);
135 MODULE_PARM_DESC(radio,"The TV card supports radio, default is 0 (no)");
136 MODULE_PARM_DESC(bigendian,"byte order of the framebuffer, default is native endian");
137 MODULE_PARM_DESC(bttv_verbose,"verbose startup messages, default is 1 (yes)");
138 MODULE_PARM_DESC(bttv_gpio,"log gpio changes, default is 0 (no)");
139 MODULE_PARM_DESC(bttv_debug,"debug messages, default is 0 (no)");
140 MODULE_PARM_DESC(irq_debug,"irq handler debug messages, default is 0 (no)");
141 MODULE_PARM_DESC(gbuffers,"number of capture buffers. range 2-32, default 8");
142 MODULE_PARM_DESC(gbufsize,"size of the capture buffers, default is 0x208000");
143 MODULE_PARM_DESC(reset_crop,"reset cropping parameters at open(), default "
144 "is 1 (yes) for compatibility with older applications");
145 MODULE_PARM_DESC(automute,"mute audio on bad/missing video signal, default is 1 (yes)");
146 MODULE_PARM_DESC(chroma_agc,"enables the AGC of chroma signal, default is 0 (no)");
147 MODULE_PARM_DESC(adc_crush,"enables the luminance ADC crush, default is 1 (yes)");
148 MODULE_PARM_DESC(whitecrush_upper,"sets the white crush upper value, default is 207");
149 MODULE_PARM_DESC(whitecrush_lower,"sets the white crush lower value, default is 127");
150 MODULE_PARM_DESC(vcr_hack,"enables the VCR hack (improves synch on poor VCR tapes), default is 0 (no)");
151 MODULE_PARM_DESC(irq_iswitch,"switch inputs in irq handler");
152 MODULE_PARM_DESC(uv_ratio,"ratio between u and v gains, default is 50");
153 MODULE_PARM_DESC(full_luma_range,"use the full luma range, default is 0 (no)");
154 MODULE_PARM_DESC(coring,"set the luma coring level, default is 0 (no)");
155 MODULE_PARM_DESC(video_nr, "video device numbers");
156 MODULE_PARM_DESC(vbi_nr, "vbi device numbers");
157 MODULE_PARM_DESC(radio_nr, "radio device numbers");
159 MODULE_DESCRIPTION("bttv - v4l/v4l2 driver module for bt848/878 based cards");
160 MODULE_AUTHOR("Ralph Metzler & Marcus Metzler & Gerd Knorr");
161 MODULE_LICENSE("GPL");
163 /* ----------------------------------------------------------------------- */
166 static ssize_t show_card(struct device *cd,
167 struct device_attribute *attr, char *buf)
169 struct video_device *vfd = container_of(cd, struct video_device, dev);
170 struct bttv *btv = dev_get_drvdata(vfd->parent);
171 return sprintf(buf, "%d\n", btv ? btv->c.type : UNSET);
173 static DEVICE_ATTR(card, S_IRUGO, show_card, NULL);
175 /* ----------------------------------------------------------------------- */
176 /* dvb auto-load setup */
177 #if defined(CONFIG_MODULES) && defined(MODULE)
178 static void request_module_async(struct work_struct *work)
180 request_module("dvb-bt8xx");
183 static void request_modules(struct bttv *dev)
185 INIT_WORK(&dev->request_module_wk, request_module_async);
186 schedule_work(&dev->request_module_wk);
189 #define request_modules(dev)
190 #endif /* CONFIG_MODULES */
193 /* ----------------------------------------------------------------------- */
196 /* special timing tables from conexant... */
197 static u8 SRAM_Table[][60] =
199 /* PAL digital input over GPIO[7:0] */
201 45, // 45 bytes following
202 0x36,0x11,0x01,0x00,0x90,0x02,0x05,0x10,0x04,0x16,
203 0x12,0x05,0x11,0x00,0x04,0x12,0xC0,0x00,0x31,0x00,
204 0x06,0x51,0x08,0x03,0x89,0x08,0x07,0xC0,0x44,0x00,
205 0x81,0x01,0x01,0xA9,0x0D,0x02,0x02,0x50,0x03,0x37,
206 0x37,0x00,0xAF,0x21,0x00
208 /* NTSC digital input over GPIO[7:0] */
210 51, // 51 bytes following
211 0x0C,0xC0,0x00,0x00,0x90,0x02,0x03,0x10,0x03,0x06,
212 0x10,0x04,0x12,0x12,0x05,0x02,0x13,0x04,0x19,0x00,
213 0x04,0x39,0x00,0x06,0x59,0x08,0x03,0x83,0x08,0x07,
214 0x03,0x50,0x00,0xC0,0x40,0x00,0x86,0x01,0x01,0xA6,
215 0x0D,0x02,0x03,0x11,0x01,0x05,0x37,0x00,0xAC,0x21,
218 // TGB_NTSC392 // quartzsight
219 // This table has been modified to be used for Fusion Rev D
221 0x2A, // size of table = 42
222 0x06, 0x08, 0x04, 0x0a, 0xc0, 0x00, 0x18, 0x08, 0x03, 0x24,
223 0x08, 0x07, 0x02, 0x90, 0x02, 0x08, 0x10, 0x04, 0x0c, 0x10,
224 0x05, 0x2c, 0x11, 0x04, 0x55, 0x48, 0x00, 0x05, 0x50, 0x00,
225 0xbf, 0x0c, 0x02, 0x2f, 0x3d, 0x00, 0x2f, 0x3f, 0x00, 0xc3,
230 /* minhdelayx1 first video pixel we can capture on a line and
231 hdelayx1 start of active video, both relative to rising edge of
232 /HRESET pulse (0H) in 1 / fCLKx1.
233 swidth width of active video and
234 totalwidth total line width, both in 1 / fCLKx1.
235 sqwidth total line width in square pixels.
236 vdelay start of active video in 2 * field lines relative to
237 trailing edge of /VRESET pulse (VDELAY register).
238 sheight height of active video in 2 * field lines.
239 videostart0 ITU-R frame line number of the line corresponding
240 to vdelay in the first field. */
241 #define CROPCAP(minhdelayx1, hdelayx1, swidth, totalwidth, sqwidth, \
242 vdelay, sheight, videostart0) \
243 .cropcap.bounds.left = minhdelayx1, \
244 /* * 2 because vertically we count field lines times two, */ \
245 /* e.g. 23 * 2 to 23 * 2 + 576 in PAL-BGHI defrect. */ \
246 .cropcap.bounds.top = (videostart0) * 2 - (vdelay) + MIN_VDELAY, \
247 /* 4 is a safety margin at the end of the line. */ \
248 .cropcap.bounds.width = (totalwidth) - (minhdelayx1) - 4, \
249 .cropcap.bounds.height = (sheight) + (vdelay) - MIN_VDELAY, \
250 .cropcap.defrect.left = hdelayx1, \
251 .cropcap.defrect.top = (videostart0) * 2, \
252 .cropcap.defrect.width = swidth, \
253 .cropcap.defrect.height = sheight, \
254 .cropcap.pixelaspect.numerator = totalwidth, \
255 .cropcap.pixelaspect.denominator = sqwidth,
257 const struct bttv_tvnorm bttv_tvnorms[] = {
259 /* max. active video is actually 922, but 924 is divisible by 4 and 3! */
260 /* actually, max active PAL with HSCALE=0 is 948, NTSC is 768 - nil */
262 .v4l2_id = V4L2_STD_PAL,
270 .iform = (BT848_IFORM_PAL_BDGHI|BT848_IFORM_XT1),
271 .scaledtwidth = 1135,
275 .vbipack = 255, /* min (2048 / 4, 0x1ff) & 0xff */
277 /* ITU-R frame line number of the first VBI line
278 we can capture, of the first and second field.
279 The last line is determined by cropcap.bounds. */
280 .vbistart = { 7, 320 },
281 CROPCAP(/* minhdelayx1 */ 68,
283 /* Should be (768 * 1135 + 944 / 2) / 944.
284 cropcap.defrect is used for image width
285 checks, so we keep the old value 924. */
287 /* totalwidth */ 1135,
291 /* videostart0 */ 23)
292 /* bt878 (and bt848?) can capture another
293 line below active video. */
294 .cropcap.bounds.height = (576 + 2) + 0x20 - 2,
296 .v4l2_id = V4L2_STD_NTSC_M | V4L2_STD_NTSC_M_KR,
304 .iform = (BT848_IFORM_NTSC|BT848_IFORM_XT0),
309 .vbipack = 144, /* min (1600 / 4, 0x1ff) & 0xff */
311 .vbistart = { 10, 273 },
312 CROPCAP(/* minhdelayx1 */ 68,
314 /* Should be (640 * 910 + 780 / 2) / 780? */
316 /* totalwidth */ 910,
320 /* videostart0 */ 23)
322 .v4l2_id = V4L2_STD_SECAM,
330 .iform = (BT848_IFORM_SECAM|BT848_IFORM_XT1),
331 .scaledtwidth = 1135,
336 .sram = 0, /* like PAL, correct? */
337 .vbistart = { 7, 320 },
338 CROPCAP(/* minhdelayx1 */ 68,
341 /* totalwidth */ 1135,
345 /* videostart0 */ 23)
347 .v4l2_id = V4L2_STD_PAL_Nc,
355 .iform = (BT848_IFORM_PAL_NC|BT848_IFORM_XT0),
362 .vbistart = { 7, 320 },
363 CROPCAP(/* minhdelayx1 */ 68,
365 /* swidth */ (640 * 910 + 780 / 2) / 780,
366 /* totalwidth */ 910,
370 /* videostart0 */ 23)
372 .v4l2_id = V4L2_STD_PAL_M,
380 .iform = (BT848_IFORM_PAL_M|BT848_IFORM_XT0),
387 .vbistart = { 10, 273 },
388 CROPCAP(/* minhdelayx1 */ 68,
390 /* swidth */ (640 * 910 + 780 / 2) / 780,
391 /* totalwidth */ 910,
395 /* videostart0 */ 23)
397 .v4l2_id = V4L2_STD_PAL_N,
405 .iform = (BT848_IFORM_PAL_N|BT848_IFORM_XT1),
412 .vbistart = { 7, 320 },
413 CROPCAP(/* minhdelayx1 */ 68,
415 /* swidth */ (768 * 1135 + 944 / 2) / 944,
416 /* totalwidth */ 1135,
420 /* videostart0 */ 23)
422 .v4l2_id = V4L2_STD_NTSC_M_JP,
430 .iform = (BT848_IFORM_NTSC_J|BT848_IFORM_XT0),
437 .vbistart = { 10, 273 },
438 CROPCAP(/* minhdelayx1 */ 68,
440 /* swidth */ (640 * 910 + 780 / 2) / 780,
441 /* totalwidth */ 910,
445 /* videostart0 */ 23)
447 /* that one hopefully works with the strange timing
448 * which video recorders produce when playing a NTSC
449 * tape on a PAL TV ... */
450 .v4l2_id = V4L2_STD_PAL_60,
458 .iform = (BT848_IFORM_PAL_BDGHI|BT848_IFORM_XT1),
459 .scaledtwidth = 1135,
466 .vbistart = { 10, 273 },
467 CROPCAP(/* minhdelayx1 */ 68,
470 /* totalwidth */ 1135,
474 /* videostart0 */ 23)
477 static const unsigned int BTTV_TVNORMS = ARRAY_SIZE(bttv_tvnorms);
479 /* ----------------------------------------------------------------------- */
481 packed pixel formats must come first */
482 static const struct bttv_format formats[] = {
484 .name = "8 bpp, gray",
485 .fourcc = V4L2_PIX_FMT_GREY,
486 .btformat = BT848_COLOR_FMT_Y8,
488 .flags = FORMAT_FLAGS_PACKED,
490 .name = "8 bpp, dithered color",
491 .fourcc = V4L2_PIX_FMT_HI240,
492 .btformat = BT848_COLOR_FMT_RGB8,
494 .flags = FORMAT_FLAGS_PACKED | FORMAT_FLAGS_DITHER,
496 .name = "15 bpp RGB, le",
497 .fourcc = V4L2_PIX_FMT_RGB555,
498 .btformat = BT848_COLOR_FMT_RGB15,
500 .flags = FORMAT_FLAGS_PACKED,
502 .name = "15 bpp RGB, be",
503 .fourcc = V4L2_PIX_FMT_RGB555X,
504 .btformat = BT848_COLOR_FMT_RGB15,
505 .btswap = 0x03, /* byteswap */
507 .flags = FORMAT_FLAGS_PACKED,
509 .name = "16 bpp RGB, le",
510 .fourcc = V4L2_PIX_FMT_RGB565,
511 .btformat = BT848_COLOR_FMT_RGB16,
513 .flags = FORMAT_FLAGS_PACKED,
515 .name = "16 bpp RGB, be",
516 .fourcc = V4L2_PIX_FMT_RGB565X,
517 .btformat = BT848_COLOR_FMT_RGB16,
518 .btswap = 0x03, /* byteswap */
520 .flags = FORMAT_FLAGS_PACKED,
522 .name = "24 bpp RGB, le",
523 .fourcc = V4L2_PIX_FMT_BGR24,
524 .btformat = BT848_COLOR_FMT_RGB24,
526 .flags = FORMAT_FLAGS_PACKED,
528 .name = "32 bpp RGB, le",
529 .fourcc = V4L2_PIX_FMT_BGR32,
530 .btformat = BT848_COLOR_FMT_RGB32,
532 .flags = FORMAT_FLAGS_PACKED,
534 .name = "32 bpp RGB, be",
535 .fourcc = V4L2_PIX_FMT_RGB32,
536 .btformat = BT848_COLOR_FMT_RGB32,
537 .btswap = 0x0f, /* byte+word swap */
539 .flags = FORMAT_FLAGS_PACKED,
541 .name = "4:2:2, packed, YUYV",
542 .fourcc = V4L2_PIX_FMT_YUYV,
543 .btformat = BT848_COLOR_FMT_YUY2,
545 .flags = FORMAT_FLAGS_PACKED,
547 .name = "4:2:2, packed, YUYV",
548 .fourcc = V4L2_PIX_FMT_YUYV,
549 .btformat = BT848_COLOR_FMT_YUY2,
551 .flags = FORMAT_FLAGS_PACKED,
553 .name = "4:2:2, packed, UYVY",
554 .fourcc = V4L2_PIX_FMT_UYVY,
555 .btformat = BT848_COLOR_FMT_YUY2,
556 .btswap = 0x03, /* byteswap */
558 .flags = FORMAT_FLAGS_PACKED,
560 .name = "4:2:2, planar, Y-Cb-Cr",
561 .fourcc = V4L2_PIX_FMT_YUV422P,
562 .btformat = BT848_COLOR_FMT_YCrCb422,
564 .flags = FORMAT_FLAGS_PLANAR,
568 .name = "4:2:0, planar, Y-Cb-Cr",
569 .fourcc = V4L2_PIX_FMT_YUV420,
570 .btformat = BT848_COLOR_FMT_YCrCb422,
572 .flags = FORMAT_FLAGS_PLANAR,
576 .name = "4:2:0, planar, Y-Cr-Cb",
577 .fourcc = V4L2_PIX_FMT_YVU420,
578 .btformat = BT848_COLOR_FMT_YCrCb422,
580 .flags = FORMAT_FLAGS_PLANAR | FORMAT_FLAGS_CrCb,
584 .name = "4:1:1, planar, Y-Cb-Cr",
585 .fourcc = V4L2_PIX_FMT_YUV411P,
586 .btformat = BT848_COLOR_FMT_YCrCb411,
588 .flags = FORMAT_FLAGS_PLANAR,
592 .name = "4:1:0, planar, Y-Cb-Cr",
593 .fourcc = V4L2_PIX_FMT_YUV410,
594 .btformat = BT848_COLOR_FMT_YCrCb411,
596 .flags = FORMAT_FLAGS_PLANAR,
600 .name = "4:1:0, planar, Y-Cr-Cb",
601 .fourcc = V4L2_PIX_FMT_YVU410,
602 .btformat = BT848_COLOR_FMT_YCrCb411,
604 .flags = FORMAT_FLAGS_PLANAR | FORMAT_FLAGS_CrCb,
608 .name = "raw scanlines",
610 .btformat = BT848_COLOR_FMT_RAW,
612 .flags = FORMAT_FLAGS_RAW,
615 static const unsigned int FORMATS = ARRAY_SIZE(formats);
617 /* ----------------------------------------------------------------------- */
619 #define V4L2_CID_PRIVATE_CHROMA_AGC (V4L2_CID_PRIVATE_BASE + 0)
620 #define V4L2_CID_PRIVATE_COMBFILTER (V4L2_CID_PRIVATE_BASE + 1)
621 #define V4L2_CID_PRIVATE_AUTOMUTE (V4L2_CID_PRIVATE_BASE + 2)
622 #define V4L2_CID_PRIVATE_LUMAFILTER (V4L2_CID_PRIVATE_BASE + 3)
623 #define V4L2_CID_PRIVATE_AGC_CRUSH (V4L2_CID_PRIVATE_BASE + 4)
624 #define V4L2_CID_PRIVATE_VCR_HACK (V4L2_CID_PRIVATE_BASE + 5)
625 #define V4L2_CID_PRIVATE_WHITECRUSH_UPPER (V4L2_CID_PRIVATE_BASE + 6)
626 #define V4L2_CID_PRIVATE_WHITECRUSH_LOWER (V4L2_CID_PRIVATE_BASE + 7)
627 #define V4L2_CID_PRIVATE_UV_RATIO (V4L2_CID_PRIVATE_BASE + 8)
628 #define V4L2_CID_PRIVATE_FULL_LUMA_RANGE (V4L2_CID_PRIVATE_BASE + 9)
629 #define V4L2_CID_PRIVATE_CORING (V4L2_CID_PRIVATE_BASE + 10)
630 #define V4L2_CID_PRIVATE_LASTP1 (V4L2_CID_PRIVATE_BASE + 11)
632 static const struct v4l2_queryctrl no_ctl = {
634 .flags = V4L2_CTRL_FLAG_DISABLED,
636 static const struct v4l2_queryctrl bttv_ctls[] = {
639 .id = V4L2_CID_BRIGHTNESS,
640 .name = "Brightness",
644 .default_value = 32768,
645 .type = V4L2_CTRL_TYPE_INTEGER,
647 .id = V4L2_CID_CONTRAST,
652 .default_value = 32768,
653 .type = V4L2_CTRL_TYPE_INTEGER,
655 .id = V4L2_CID_SATURATION,
656 .name = "Saturation",
660 .default_value = 32768,
661 .type = V4L2_CTRL_TYPE_INTEGER,
668 .default_value = 32768,
669 .type = V4L2_CTRL_TYPE_INTEGER,
673 .id = V4L2_CID_AUDIO_MUTE,
677 .type = V4L2_CTRL_TYPE_BOOLEAN,
679 .id = V4L2_CID_AUDIO_VOLUME,
684 .default_value = 65535,
685 .type = V4L2_CTRL_TYPE_INTEGER,
687 .id = V4L2_CID_AUDIO_BALANCE,
692 .default_value = 32768,
693 .type = V4L2_CTRL_TYPE_INTEGER,
695 .id = V4L2_CID_AUDIO_BASS,
700 .default_value = 32768,
701 .type = V4L2_CTRL_TYPE_INTEGER,
703 .id = V4L2_CID_AUDIO_TREBLE,
708 .default_value = 32768,
709 .type = V4L2_CTRL_TYPE_INTEGER,
711 /* --- private --- */
713 .id = V4L2_CID_PRIVATE_CHROMA_AGC,
714 .name = "chroma agc",
717 .type = V4L2_CTRL_TYPE_BOOLEAN,
719 .id = V4L2_CID_PRIVATE_COMBFILTER,
720 .name = "combfilter",
723 .type = V4L2_CTRL_TYPE_BOOLEAN,
725 .id = V4L2_CID_PRIVATE_AUTOMUTE,
729 .type = V4L2_CTRL_TYPE_BOOLEAN,
731 .id = V4L2_CID_PRIVATE_LUMAFILTER,
732 .name = "luma decimation filter",
735 .type = V4L2_CTRL_TYPE_BOOLEAN,
737 .id = V4L2_CID_PRIVATE_AGC_CRUSH,
741 .type = V4L2_CTRL_TYPE_BOOLEAN,
743 .id = V4L2_CID_PRIVATE_VCR_HACK,
747 .type = V4L2_CTRL_TYPE_BOOLEAN,
749 .id = V4L2_CID_PRIVATE_WHITECRUSH_UPPER,
750 .name = "whitecrush upper",
754 .default_value = 0xCF,
755 .type = V4L2_CTRL_TYPE_INTEGER,
757 .id = V4L2_CID_PRIVATE_WHITECRUSH_LOWER,
758 .name = "whitecrush lower",
762 .default_value = 0x7F,
763 .type = V4L2_CTRL_TYPE_INTEGER,
765 .id = V4L2_CID_PRIVATE_UV_RATIO,
771 .type = V4L2_CTRL_TYPE_INTEGER,
773 .id = V4L2_CID_PRIVATE_FULL_LUMA_RANGE,
774 .name = "full luma range",
777 .type = V4L2_CTRL_TYPE_BOOLEAN,
779 .id = V4L2_CID_PRIVATE_CORING,
785 .type = V4L2_CTRL_TYPE_INTEGER,
792 static const struct v4l2_queryctrl *ctrl_by_id(int id)
796 for (i = 0; i < ARRAY_SIZE(bttv_ctls); i++)
797 if (bttv_ctls[i].id == id)
803 /* ----------------------------------------------------------------------- */
804 /* resource management */
807 RESOURCE_ allocated by freed by
809 VIDEO_READ bttv_read 1) bttv_read 2)
811 VIDEO_STREAM VIDIOC_STREAMON VIDIOC_STREAMOFF
812 VIDIOC_QBUF 1) bttv_release
815 OVERLAY VIDIOCCAPTURE on VIDIOCCAPTURE off
816 VIDIOC_OVERLAY on VIDIOC_OVERLAY off
819 VBI VIDIOC_STREAMON VIDIOC_STREAMOFF
820 VIDIOC_QBUF 1) bttv_release
821 bttv_read, bttv_poll 1) 4)
823 1) The resource must be allocated when we enter buffer prepare functions
824 and remain allocated while buffers are in the DMA queue.
825 2) This is a single frame read.
826 3) VIDIOC_S_FBUF and VIDIOC_S_FMT (OVERLAY) still work when
827 RESOURCE_OVERLAY is allocated.
828 4) This is a continuous read, implies VIDIOC_STREAMON.
830 Note this driver permits video input and standard changes regardless if
831 resources are allocated.
834 #define VBI_RESOURCES (RESOURCE_VBI)
835 #define VIDEO_RESOURCES (RESOURCE_VIDEO_READ | \
836 RESOURCE_VIDEO_STREAM | \
840 int check_alloc_btres(struct bttv *btv, struct bttv_fh *fh, int bit)
842 int xbits; /* mutual exclusive resources */
844 if (fh->resources & bit)
845 /* have it already allocated */
849 if (bit & (RESOURCE_VIDEO_READ | RESOURCE_VIDEO_STREAM))
850 xbits |= RESOURCE_VIDEO_READ | RESOURCE_VIDEO_STREAM;
853 mutex_lock(&btv->lock);
854 if (btv->resources & xbits) {
855 /* no, someone else uses it */
859 if ((bit & VIDEO_RESOURCES)
860 && 0 == (btv->resources & VIDEO_RESOURCES)) {
861 /* Do crop - use current, don't - use default parameters. */
862 __s32 top = btv->crop[!!fh->do_crop].rect.top;
864 if (btv->vbi_end > top)
867 /* We cannot capture the same line as video and VBI data.
868 Claim scan lines crop[].rect.top to bottom. */
869 btv->crop_start = top;
870 } else if (bit & VBI_RESOURCES) {
871 __s32 end = fh->vbi_fmt.end;
873 if (end > btv->crop_start)
876 /* Claim scan lines above fh->vbi_fmt.end. */
880 /* it's free, grab it */
881 fh->resources |= bit;
882 btv->resources |= bit;
883 mutex_unlock(&btv->lock);
887 mutex_unlock(&btv->lock);
892 int check_btres(struct bttv_fh *fh, int bit)
894 return (fh->resources & bit);
898 int locked_btres(struct bttv *btv, int bit)
900 return (btv->resources & bit);
903 /* Call with btv->lock down. */
905 disclaim_vbi_lines(struct bttv *btv)
910 /* Call with btv->lock down. */
912 disclaim_video_lines(struct bttv *btv)
914 const struct bttv_tvnorm *tvnorm;
917 tvnorm = &bttv_tvnorms[btv->tvnorm];
918 btv->crop_start = tvnorm->cropcap.bounds.top
919 + tvnorm->cropcap.bounds.height;
921 /* VBI capturing ends at VDELAY, start of video capturing, no
922 matter how many lines the VBI RISC program expects. When video
923 capturing is off, it shall no longer "preempt" VBI capturing,
924 so we set VDELAY to maximum. */
925 crop = btread(BT848_E_CROP) | 0xc0;
926 btwrite(crop, BT848_E_CROP);
927 btwrite(0xfe, BT848_E_VDELAY_LO);
928 btwrite(crop, BT848_O_CROP);
929 btwrite(0xfe, BT848_O_VDELAY_LO);
933 void free_btres(struct bttv *btv, struct bttv_fh *fh, int bits)
935 if ((fh->resources & bits) != bits) {
936 /* trying to free ressources not allocated by us ... */
937 printk("bttv: BUG! (btres)\n");
939 mutex_lock(&btv->lock);
940 fh->resources &= ~bits;
941 btv->resources &= ~bits;
943 bits = btv->resources;
945 if (0 == (bits & VIDEO_RESOURCES))
946 disclaim_video_lines(btv);
948 if (0 == (bits & VBI_RESOURCES))
949 disclaim_vbi_lines(btv);
951 mutex_unlock(&btv->lock);
954 /* ----------------------------------------------------------------------- */
955 /* If Bt848a or Bt849, use PLL for PAL/SECAM and crystal for NTSC */
957 /* Frequency = (F_input / PLL_X) * PLL_I.PLL_F/PLL_C
958 PLL_X = Reference pre-divider (0=1, 1=2)
959 PLL_C = Post divider (0=6, 1=4)
960 PLL_I = Integer input
961 PLL_F = Fractional input
963 F_input = 28.636363 MHz:
964 PAL (CLKx2 = 35.46895 MHz): PLL_X = 1, PLL_I = 0x0E, PLL_F = 0xDCF9, PLL_C = 0
967 static void set_pll_freq(struct bttv *btv, unsigned int fin, unsigned int fout)
969 unsigned char fl, fh, fi;
971 /* prevent overflows */
984 btwrite(fl, BT848_PLL_F_LO);
985 btwrite(fh, BT848_PLL_F_HI);
986 btwrite(fi|BT848_PLL_X, BT848_PLL_XCI);
989 static void set_pll(struct bttv *btv)
993 if (!btv->pll.pll_crystal)
996 if (btv->pll.pll_ofreq == btv->pll.pll_current) {
997 dprintk("bttv%d: PLL: no change required\n",btv->c.nr);
1001 if (btv->pll.pll_ifreq == btv->pll.pll_ofreq) {
1003 if (btv->pll.pll_current == 0)
1005 bttv_printk(KERN_INFO "bttv%d: PLL can sleep, using XTAL (%d).\n",
1006 btv->c.nr,btv->pll.pll_ifreq);
1007 btwrite(0x00,BT848_TGCTRL);
1008 btwrite(0x00,BT848_PLL_XCI);
1009 btv->pll.pll_current = 0;
1013 bttv_printk(KERN_INFO "bttv%d: PLL: %d => %d ",btv->c.nr,
1014 btv->pll.pll_ifreq, btv->pll.pll_ofreq);
1015 set_pll_freq(btv, btv->pll.pll_ifreq, btv->pll.pll_ofreq);
1017 for (i=0; i<10; i++) {
1018 /* Let other people run while the PLL stabilizes */
1022 if (btread(BT848_DSTATUS) & BT848_DSTATUS_PLOCK) {
1023 btwrite(0,BT848_DSTATUS);
1025 btwrite(0x08,BT848_TGCTRL);
1026 btv->pll.pll_current = btv->pll.pll_ofreq;
1027 bttv_printk(" ok\n");
1031 btv->pll.pll_current = -1;
1032 bttv_printk("failed\n");
1036 /* used to switch between the bt848's analog/digital video capture modes */
1037 static void bt848A_set_timing(struct bttv *btv)
1040 int table_idx = bttv_tvnorms[btv->tvnorm].sram;
1041 int fsc = bttv_tvnorms[btv->tvnorm].Fsc;
1043 if (btv->input == btv->dig) {
1044 dprintk("bttv%d: load digital timing table (table_idx=%d)\n",
1045 btv->c.nr,table_idx);
1047 /* timing change...reset timing generator address */
1048 btwrite(0x00, BT848_TGCTRL);
1049 btwrite(0x02, BT848_TGCTRL);
1050 btwrite(0x00, BT848_TGCTRL);
1052 len=SRAM_Table[table_idx][0];
1053 for(i = 1; i <= len; i++)
1054 btwrite(SRAM_Table[table_idx][i],BT848_TGLB);
1055 btv->pll.pll_ofreq = 27000000;
1058 btwrite(0x11, BT848_TGCTRL);
1059 btwrite(0x41, BT848_DVSIF);
1061 btv->pll.pll_ofreq = fsc;
1063 btwrite(0x0, BT848_DVSIF);
1067 /* ----------------------------------------------------------------------- */
1069 static void bt848_bright(struct bttv *btv, int bright)
1073 // printk("bttv: set bright: %d\n",bright); // DEBUG
1074 btv->bright = bright;
1076 /* We want -128 to 127 we get 0-65535 */
1077 value = (bright >> 8) - 128;
1078 btwrite(value & 0xff, BT848_BRIGHT);
1081 static void bt848_hue(struct bttv *btv, int hue)
1088 value = (hue >> 8) - 128;
1089 btwrite(value & 0xff, BT848_HUE);
1092 static void bt848_contrast(struct bttv *btv, int cont)
1096 btv->contrast = cont;
1099 value = (cont >> 7);
1100 hibit = (value >> 6) & 4;
1101 btwrite(value & 0xff, BT848_CONTRAST_LO);
1102 btaor(hibit, ~4, BT848_E_CONTROL);
1103 btaor(hibit, ~4, BT848_O_CONTROL);
1106 static void bt848_sat(struct bttv *btv, int color)
1108 int val_u,val_v,hibits;
1110 btv->saturation = color;
1112 /* 0-511 for the color */
1113 val_u = ((color * btv->opt_uv_ratio) / 50) >> 7;
1114 val_v = (((color * (100 - btv->opt_uv_ratio) / 50) >>7)*180L)/254;
1115 hibits = (val_u >> 7) & 2;
1116 hibits |= (val_v >> 8) & 1;
1117 btwrite(val_u & 0xff, BT848_SAT_U_LO);
1118 btwrite(val_v & 0xff, BT848_SAT_V_LO);
1119 btaor(hibits, ~3, BT848_E_CONTROL);
1120 btaor(hibits, ~3, BT848_O_CONTROL);
1123 /* ----------------------------------------------------------------------- */
1126 video_mux(struct bttv *btv, unsigned int input)
1130 if (input >= bttv_tvcards[btv->c.type].video_inputs)
1133 /* needed by RemoteVideo MX */
1134 mask2 = bttv_tvcards[btv->c.type].gpiomask2;
1136 gpio_inout(mask2,mask2);
1138 if (input == btv->svhs) {
1139 btor(BT848_CONTROL_COMP, BT848_E_CONTROL);
1140 btor(BT848_CONTROL_COMP, BT848_O_CONTROL);
1142 btand(~BT848_CONTROL_COMP, BT848_E_CONTROL);
1143 btand(~BT848_CONTROL_COMP, BT848_O_CONTROL);
1145 mux = bttv_tvcards[btv->c.type].muxsel[input] & 3;
1146 btaor(mux<<5, ~(3<<5), BT848_IFORM);
1147 dprintk(KERN_DEBUG "bttv%d: video mux: input=%d mux=%d\n",
1148 btv->c.nr,input,mux);
1150 /* card specific hook */
1151 if(bttv_tvcards[btv->c.type].muxsel_hook)
1152 bttv_tvcards[btv->c.type].muxsel_hook (btv, input);
1156 static char *audio_modes[] = {
1157 "audio: tuner", "audio: radio", "audio: extern",
1158 "audio: intern", "audio: mute"
1162 audio_mux(struct bttv *btv, int input, int mute)
1164 int gpio_val, signal;
1165 struct v4l2_control ctrl;
1166 struct i2c_client *c;
1168 gpio_inout(bttv_tvcards[btv->c.type].gpiomask,
1169 bttv_tvcards[btv->c.type].gpiomask);
1170 signal = btread(BT848_DSTATUS) & BT848_DSTATUS_HLOC;
1176 mute = mute || (btv->opt_automute && !signal && !btv->radio_user);
1179 gpio_val = bttv_tvcards[btv->c.type].gpiomute;
1181 gpio_val = bttv_tvcards[btv->c.type].gpiomux[input];
1183 switch (btv->c.type) {
1184 case BTTV_BOARD_VOODOOTV_FM:
1185 case BTTV_BOARD_VOODOOTV_200:
1186 gpio_val = bttv_tda9880_setnorm(btv, gpio_val);
1190 gpio_bits(bttv_tvcards[btv->c.type].gpiomask, gpio_val);
1194 bttv_gpio_tracking(btv, audio_modes[mute ? 4 : input]);
1198 ctrl.id = V4L2_CID_AUDIO_MUTE;
1199 ctrl.value = btv->mute;
1200 bttv_call_i2c_clients(btv, VIDIOC_S_CTRL, &ctrl);
1201 c = btv->i2c_msp34xx_client;
1203 struct v4l2_routing route;
1205 /* Note: the inputs tuner/radio/extern/intern are translated
1206 to msp routings. This assumes common behavior for all msp3400
1207 based TV cards. When this assumption fails, then the
1208 specific MSP routing must be added to the card table.
1209 For now this is sufficient. */
1211 case TVAUDIO_INPUT_RADIO:
1212 route.input = MSP_INPUT(MSP_IN_SCART2, MSP_IN_TUNER1,
1213 MSP_DSP_IN_SCART, MSP_DSP_IN_SCART);
1215 case TVAUDIO_INPUT_EXTERN:
1216 route.input = MSP_INPUT(MSP_IN_SCART1, MSP_IN_TUNER1,
1217 MSP_DSP_IN_SCART, MSP_DSP_IN_SCART);
1219 case TVAUDIO_INPUT_INTERN:
1220 /* Yes, this is the same input as for RADIO. I doubt
1221 if this is ever used. The only board with an INTERN
1222 input is the BTTV_BOARD_AVERMEDIA98. I wonder how
1223 that was tested. My guess is that the whole INTERN
1224 input does not work. */
1225 route.input = MSP_INPUT(MSP_IN_SCART2, MSP_IN_TUNER1,
1226 MSP_DSP_IN_SCART, MSP_DSP_IN_SCART);
1228 case TVAUDIO_INPUT_TUNER:
1230 /* This is the only card that uses TUNER2, and afaik,
1231 is the only difference between the VOODOOTV_FM
1233 if (btv->c.type == BTTV_BOARD_VOODOOTV_200)
1234 route.input = MSP_INPUT(MSP_IN_SCART1, MSP_IN_TUNER2, \
1235 MSP_DSP_IN_TUNER, MSP_DSP_IN_TUNER);
1237 route.input = MSP_INPUT_DEFAULT;
1240 route.output = MSP_OUTPUT_DEFAULT;
1241 c->driver->command(c, VIDIOC_INT_S_AUDIO_ROUTING, &route);
1243 c = btv->i2c_tvaudio_client;
1245 struct v4l2_routing route;
1247 route.input = input;
1249 c->driver->command(c, VIDIOC_INT_S_AUDIO_ROUTING, &route);
1255 audio_mute(struct bttv *btv, int mute)
1257 return audio_mux(btv, btv->audio, mute);
1261 audio_input(struct bttv *btv, int input)
1263 return audio_mux(btv, input, btv->mute);
1267 bttv_crop_calc_limits(struct bttv_crop *c)
1269 /* Scale factor min. 1:1, max. 16:1. Min. image size
1270 48 x 32. Scaled width must be a multiple of 4. */
1273 /* For bug compatibility with VIDIOCGCAP and image
1274 size checks in earlier driver versions. */
1275 c->min_scaled_width = 48;
1276 c->min_scaled_height = 32;
1278 c->min_scaled_width =
1279 (max(48, c->rect.width >> 4) + 3) & ~3;
1280 c->min_scaled_height =
1281 max(32, c->rect.height >> 4);
1284 c->max_scaled_width = c->rect.width & ~3;
1285 c->max_scaled_height = c->rect.height;
1289 bttv_crop_reset(struct bttv_crop *c, unsigned int norm)
1291 c->rect = bttv_tvnorms[norm].cropcap.defrect;
1292 bttv_crop_calc_limits(c);
1295 /* Call with btv->lock down. */
1297 set_tvnorm(struct bttv *btv, unsigned int norm)
1299 const struct bttv_tvnorm *tvnorm;
1302 BUG_ON(norm >= BTTV_TVNORMS);
1303 BUG_ON(btv->tvnorm >= BTTV_TVNORMS);
1305 tvnorm = &bttv_tvnorms[norm];
1307 if (!memcmp(&bttv_tvnorms[btv->tvnorm].cropcap, &tvnorm->cropcap,
1308 sizeof (tvnorm->cropcap))) {
1309 bttv_crop_reset(&btv->crop[0], norm);
1310 btv->crop[1] = btv->crop[0]; /* current = default */
1312 if (0 == (btv->resources & VIDEO_RESOURCES)) {
1313 btv->crop_start = tvnorm->cropcap.bounds.top
1314 + tvnorm->cropcap.bounds.height;
1320 btwrite(tvnorm->adelay, BT848_ADELAY);
1321 btwrite(tvnorm->bdelay, BT848_BDELAY);
1322 btaor(tvnorm->iform,~(BT848_IFORM_NORM|BT848_IFORM_XTBOTH),
1324 btwrite(tvnorm->vbipack, BT848_VBI_PACK_SIZE);
1325 btwrite(1, BT848_VBI_PACK_DEL);
1326 bt848A_set_timing(btv);
1328 switch (btv->c.type) {
1329 case BTTV_BOARD_VOODOOTV_FM:
1330 case BTTV_BOARD_VOODOOTV_200:
1331 bttv_tda9880_setnorm(btv, gpio_read());
1334 id = tvnorm->v4l2_id;
1335 bttv_call_i2c_clients(btv, VIDIOC_S_STD, &id);
1340 /* Call with btv->lock down. */
1342 set_input(struct bttv *btv, unsigned int input, unsigned int norm)
1344 unsigned long flags;
1348 spin_lock_irqsave(&btv->s_lock,flags);
1349 if (btv->curr.frame_irq) {
1350 /* active capture -> delayed input switch */
1351 btv->new_input = input;
1353 video_mux(btv,input);
1355 spin_unlock_irqrestore(&btv->s_lock,flags);
1357 video_mux(btv,input);
1359 audio_input(btv, (btv->tuner_type != TUNER_ABSENT && input == 0) ?
1360 TVAUDIO_INPUT_TUNER : TVAUDIO_INPUT_EXTERN);
1361 set_tvnorm(btv, norm);
1364 static void init_irqreg(struct bttv *btv)
1367 btwrite(0xfffffUL, BT848_INT_STAT);
1369 if (bttv_tvcards[btv->c.type].no_video) {
1371 btwrite(BT848_INT_I2CDONE,
1375 btwrite((btv->triton1) |
1376 (btv->gpioirq ? BT848_INT_GPINT : 0) |
1378 (fdsr ? BT848_INT_FDSR : 0) |
1379 BT848_INT_RISCI | BT848_INT_OCERR |
1380 BT848_INT_FMTCHG|BT848_INT_HLOCK|
1386 static void init_bt848(struct bttv *btv)
1390 if (bttv_tvcards[btv->c.type].no_video) {
1391 /* very basic init only */
1396 btwrite(0x00, BT848_CAP_CTL);
1397 btwrite(BT848_COLOR_CTL_GAMMA, BT848_COLOR_CTL);
1398 btwrite(BT848_IFORM_XTAUTO | BT848_IFORM_AUTO, BT848_IFORM);
1400 /* set planar and packed mode trigger points and */
1401 /* set rising edge of inverted GPINTR pin as irq trigger */
1402 btwrite(BT848_GPIO_DMA_CTL_PKTP_32|
1403 BT848_GPIO_DMA_CTL_PLTP1_16|
1404 BT848_GPIO_DMA_CTL_PLTP23_16|
1405 BT848_GPIO_DMA_CTL_GPINTC|
1406 BT848_GPIO_DMA_CTL_GPINTI,
1407 BT848_GPIO_DMA_CTL);
1409 val = btv->opt_chroma_agc ? BT848_SCLOOP_CAGC : 0;
1410 btwrite(val, BT848_E_SCLOOP);
1411 btwrite(val, BT848_O_SCLOOP);
1413 btwrite(0x20, BT848_E_VSCALE_HI);
1414 btwrite(0x20, BT848_O_VSCALE_HI);
1415 btwrite(BT848_ADC_RESERVED | (btv->opt_adc_crush ? BT848_ADC_CRUSH : 0),
1418 btwrite(whitecrush_upper, BT848_WC_UP);
1419 btwrite(whitecrush_lower, BT848_WC_DOWN);
1421 if (btv->opt_lumafilter) {
1422 btwrite(0, BT848_E_CONTROL);
1423 btwrite(0, BT848_O_CONTROL);
1425 btwrite(BT848_CONTROL_LDEC, BT848_E_CONTROL);
1426 btwrite(BT848_CONTROL_LDEC, BT848_O_CONTROL);
1429 bt848_bright(btv, btv->bright);
1430 bt848_hue(btv, btv->hue);
1431 bt848_contrast(btv, btv->contrast);
1432 bt848_sat(btv, btv->saturation);
1438 static void bttv_reinit_bt848(struct bttv *btv)
1440 unsigned long flags;
1443 printk(KERN_INFO "bttv%d: reset, reinitialize\n",btv->c.nr);
1444 spin_lock_irqsave(&btv->s_lock,flags);
1446 bttv_set_dma(btv,0);
1447 spin_unlock_irqrestore(&btv->s_lock,flags);
1450 btv->pll.pll_current = -1;
1451 set_input(btv, btv->input, btv->tvnorm);
1454 static int bttv_g_ctrl(struct file *file, void *priv,
1455 struct v4l2_control *c)
1457 struct bttv_fh *fh = priv;
1458 struct bttv *btv = fh->btv;
1461 case V4L2_CID_BRIGHTNESS:
1462 c->value = btv->bright;
1465 c->value = btv->hue;
1467 case V4L2_CID_CONTRAST:
1468 c->value = btv->contrast;
1470 case V4L2_CID_SATURATION:
1471 c->value = btv->saturation;
1474 case V4L2_CID_AUDIO_MUTE:
1475 case V4L2_CID_AUDIO_VOLUME:
1476 case V4L2_CID_AUDIO_BALANCE:
1477 case V4L2_CID_AUDIO_BASS:
1478 case V4L2_CID_AUDIO_TREBLE:
1479 bttv_call_i2c_clients(btv, VIDIOC_G_CTRL, c);
1482 case V4L2_CID_PRIVATE_CHROMA_AGC:
1483 c->value = btv->opt_chroma_agc;
1485 case V4L2_CID_PRIVATE_COMBFILTER:
1486 c->value = btv->opt_combfilter;
1488 case V4L2_CID_PRIVATE_LUMAFILTER:
1489 c->value = btv->opt_lumafilter;
1491 case V4L2_CID_PRIVATE_AUTOMUTE:
1492 c->value = btv->opt_automute;
1494 case V4L2_CID_PRIVATE_AGC_CRUSH:
1495 c->value = btv->opt_adc_crush;
1497 case V4L2_CID_PRIVATE_VCR_HACK:
1498 c->value = btv->opt_vcr_hack;
1500 case V4L2_CID_PRIVATE_WHITECRUSH_UPPER:
1501 c->value = btv->opt_whitecrush_upper;
1503 case V4L2_CID_PRIVATE_WHITECRUSH_LOWER:
1504 c->value = btv->opt_whitecrush_lower;
1506 case V4L2_CID_PRIVATE_UV_RATIO:
1507 c->value = btv->opt_uv_ratio;
1509 case V4L2_CID_PRIVATE_FULL_LUMA_RANGE:
1510 c->value = btv->opt_full_luma_range;
1512 case V4L2_CID_PRIVATE_CORING:
1513 c->value = btv->opt_coring;
1521 static int bttv_s_ctrl(struct file *file, void *f,
1522 struct v4l2_control *c)
1526 struct bttv_fh *fh = f;
1527 struct bttv *btv = fh->btv;
1529 err = v4l2_prio_check(&btv->prio, &fh->prio);
1534 case V4L2_CID_BRIGHTNESS:
1535 bt848_bright(btv, c->value);
1538 bt848_hue(btv, c->value);
1540 case V4L2_CID_CONTRAST:
1541 bt848_contrast(btv, c->value);
1543 case V4L2_CID_SATURATION:
1544 bt848_sat(btv, c->value);
1546 case V4L2_CID_AUDIO_MUTE:
1547 audio_mute(btv, c->value);
1549 case V4L2_CID_AUDIO_VOLUME:
1550 if (btv->volume_gpio)
1551 btv->volume_gpio(btv, c->value);
1553 bttv_call_i2c_clients(btv, VIDIOC_S_CTRL, c);
1555 case V4L2_CID_AUDIO_BALANCE:
1556 case V4L2_CID_AUDIO_BASS:
1557 case V4L2_CID_AUDIO_TREBLE:
1558 bttv_call_i2c_clients(btv, VIDIOC_S_CTRL, c);
1561 case V4L2_CID_PRIVATE_CHROMA_AGC:
1562 btv->opt_chroma_agc = c->value;
1563 val = btv->opt_chroma_agc ? BT848_SCLOOP_CAGC : 0;
1564 btwrite(val, BT848_E_SCLOOP);
1565 btwrite(val, BT848_O_SCLOOP);
1567 case V4L2_CID_PRIVATE_COMBFILTER:
1568 btv->opt_combfilter = c->value;
1570 case V4L2_CID_PRIVATE_LUMAFILTER:
1571 btv->opt_lumafilter = c->value;
1572 if (btv->opt_lumafilter) {
1573 btand(~BT848_CONTROL_LDEC, BT848_E_CONTROL);
1574 btand(~BT848_CONTROL_LDEC, BT848_O_CONTROL);
1576 btor(BT848_CONTROL_LDEC, BT848_E_CONTROL);
1577 btor(BT848_CONTROL_LDEC, BT848_O_CONTROL);
1580 case V4L2_CID_PRIVATE_AUTOMUTE:
1581 btv->opt_automute = c->value;
1583 case V4L2_CID_PRIVATE_AGC_CRUSH:
1584 btv->opt_adc_crush = c->value;
1585 btwrite(BT848_ADC_RESERVED |
1586 (btv->opt_adc_crush ? BT848_ADC_CRUSH : 0),
1589 case V4L2_CID_PRIVATE_VCR_HACK:
1590 btv->opt_vcr_hack = c->value;
1592 case V4L2_CID_PRIVATE_WHITECRUSH_UPPER:
1593 btv->opt_whitecrush_upper = c->value;
1594 btwrite(c->value, BT848_WC_UP);
1596 case V4L2_CID_PRIVATE_WHITECRUSH_LOWER:
1597 btv->opt_whitecrush_lower = c->value;
1598 btwrite(c->value, BT848_WC_DOWN);
1600 case V4L2_CID_PRIVATE_UV_RATIO:
1601 btv->opt_uv_ratio = c->value;
1602 bt848_sat(btv, btv->saturation);
1604 case V4L2_CID_PRIVATE_FULL_LUMA_RANGE:
1605 btv->opt_full_luma_range = c->value;
1606 btaor((c->value<<7), ~BT848_OFORM_RANGE, BT848_OFORM);
1608 case V4L2_CID_PRIVATE_CORING:
1609 btv->opt_coring = c->value;
1610 btaor((c->value<<5), ~BT848_OFORM_CORE32, BT848_OFORM);
1618 /* ----------------------------------------------------------------------- */
1620 void bttv_gpio_tracking(struct bttv *btv, char *comment)
1622 unsigned int outbits, data;
1623 outbits = btread(BT848_GPIO_OUT_EN);
1624 data = btread(BT848_GPIO_DATA);
1625 printk(KERN_DEBUG "bttv%d: gpio: en=%08x, out=%08x in=%08x [%s]\n",
1626 btv->c.nr,outbits,data & outbits, data & ~outbits, comment);
1629 static void bttv_field_count(struct bttv *btv)
1637 /* start field counter */
1638 btor(BT848_INT_VSYNC,BT848_INT_MASK);
1640 /* stop field counter */
1641 btand(~BT848_INT_VSYNC,BT848_INT_MASK);
1642 btv->field_count = 0;
1646 static const struct bttv_format*
1647 format_by_fourcc(int fourcc)
1651 for (i = 0; i < FORMATS; i++) {
1652 if (-1 == formats[i].fourcc)
1654 if (formats[i].fourcc == fourcc)
1660 /* ----------------------------------------------------------------------- */
1664 bttv_switch_overlay(struct bttv *btv, struct bttv_fh *fh,
1665 struct bttv_buffer *new)
1667 struct bttv_buffer *old;
1668 unsigned long flags;
1671 dprintk("switch_overlay: enter [new=%p]\n",new);
1673 new->vb.state = VIDEOBUF_DONE;
1674 spin_lock_irqsave(&btv->s_lock,flags);
1678 bttv_set_dma(btv, 0x03);
1679 spin_unlock_irqrestore(&btv->s_lock,flags);
1681 dprintk("switch_overlay: old=%p state is %d\n",old,old->vb.state);
1682 bttv_dma_free(&fh->cap,btv, old);
1686 free_btres(btv,fh,RESOURCE_OVERLAY);
1687 dprintk("switch_overlay: done\n");
1691 /* ----------------------------------------------------------------------- */
1692 /* video4linux (1) interface */
1694 static int bttv_prepare_buffer(struct videobuf_queue *q,struct bttv *btv,
1695 struct bttv_buffer *buf,
1696 const struct bttv_format *fmt,
1697 unsigned int width, unsigned int height,
1698 enum v4l2_field field)
1700 struct bttv_fh *fh = q->priv_data;
1701 int redo_dma_risc = 0;
1706 /* check settings */
1709 if (fmt->btformat == BT848_COLOR_FMT_RAW) {
1711 height = RAW_LINES*2;
1712 if (width*height > buf->vb.bsize)
1714 buf->vb.size = buf->vb.bsize;
1716 /* Make sure tvnorm and vbi_end remain consistent
1717 until we're done. */
1718 mutex_lock(&btv->lock);
1722 /* In this mode capturing always starts at defrect.top
1723 (default VDELAY), ignoring cropping parameters. */
1724 if (btv->vbi_end > bttv_tvnorms[norm].cropcap.defrect.top) {
1725 mutex_unlock(&btv->lock);
1729 mutex_unlock(&btv->lock);
1731 c.rect = bttv_tvnorms[norm].cropcap.defrect;
1733 mutex_lock(&btv->lock);
1736 c = btv->crop[!!fh->do_crop];
1738 mutex_unlock(&btv->lock);
1740 if (width < c.min_scaled_width ||
1741 width > c.max_scaled_width ||
1742 height < c.min_scaled_height)
1746 case V4L2_FIELD_TOP:
1747 case V4L2_FIELD_BOTTOM:
1748 case V4L2_FIELD_ALTERNATE:
1749 /* btv->crop counts frame lines. Max. scale
1750 factor is 16:1 for frames, 8:1 for fields. */
1751 if (height * 2 > c.max_scaled_height)
1756 if (height > c.max_scaled_height)
1761 buf->vb.size = (width * height * fmt->depth) >> 3;
1762 if (0 != buf->vb.baddr && buf->vb.bsize < buf->vb.size)
1766 /* alloc + fill struct bttv_buffer (if changed) */
1767 if (buf->vb.width != width || buf->vb.height != height ||
1768 buf->vb.field != field ||
1769 buf->tvnorm != norm || buf->fmt != fmt ||
1770 buf->crop.top != c.rect.top ||
1771 buf->crop.left != c.rect.left ||
1772 buf->crop.width != c.rect.width ||
1773 buf->crop.height != c.rect.height) {
1774 buf->vb.width = width;
1775 buf->vb.height = height;
1776 buf->vb.field = field;
1783 /* alloc risc memory */
1784 if (VIDEOBUF_NEEDS_INIT == buf->vb.state) {
1786 if (0 != (rc = videobuf_iolock(q,&buf->vb,&btv->fbuf)))
1791 if (0 != (rc = bttv_buffer_risc(btv,buf)))
1794 buf->vb.state = VIDEOBUF_PREPARED;
1798 bttv_dma_free(q,btv,buf);
1803 buffer_setup(struct videobuf_queue *q, unsigned int *count, unsigned int *size)
1805 struct bttv_fh *fh = q->priv_data;
1807 *size = fh->fmt->depth*fh->width*fh->height >> 3;
1810 while (*size * *count > gbuffers * gbufsize)
1816 buffer_prepare(struct videobuf_queue *q, struct videobuf_buffer *vb,
1817 enum v4l2_field field)
1819 struct bttv_buffer *buf = container_of(vb,struct bttv_buffer,vb);
1820 struct bttv_fh *fh = q->priv_data;
1822 return bttv_prepare_buffer(q,fh->btv, buf, fh->fmt,
1823 fh->width, fh->height, field);
1827 buffer_queue(struct videobuf_queue *q, struct videobuf_buffer *vb)
1829 struct bttv_buffer *buf = container_of(vb,struct bttv_buffer,vb);
1830 struct bttv_fh *fh = q->priv_data;
1831 struct bttv *btv = fh->btv;
1833 buf->vb.state = VIDEOBUF_QUEUED;
1834 list_add_tail(&buf->vb.queue,&btv->capture);
1835 if (!btv->curr.frame_irq) {
1837 bttv_set_dma(btv, 0x03);
1841 static void buffer_release(struct videobuf_queue *q, struct videobuf_buffer *vb)
1843 struct bttv_buffer *buf = container_of(vb,struct bttv_buffer,vb);
1844 struct bttv_fh *fh = q->priv_data;
1846 bttv_dma_free(q,fh->btv,buf);
1849 static struct videobuf_queue_ops bttv_video_qops = {
1850 .buf_setup = buffer_setup,
1851 .buf_prepare = buffer_prepare,
1852 .buf_queue = buffer_queue,
1853 .buf_release = buffer_release,
1856 static int bttv_s_std(struct file *file, void *priv, v4l2_std_id *id)
1858 struct bttv_fh *fh = priv;
1859 struct bttv *btv = fh->btv;
1863 err = v4l2_prio_check(&btv->prio, &fh->prio);
1867 for (i = 0; i < BTTV_TVNORMS; i++)
1868 if (*id & bttv_tvnorms[i].v4l2_id)
1870 if (i == BTTV_TVNORMS)
1873 mutex_lock(&btv->lock);
1875 mutex_unlock(&btv->lock);
1880 static int bttv_querystd(struct file *file, void *f, v4l2_std_id *id)
1882 struct bttv_fh *fh = f;
1883 struct bttv *btv = fh->btv;
1885 if (btread(BT848_DSTATUS) & BT848_DSTATUS_NUML)
1886 *id = V4L2_STD_625_50;
1888 *id = V4L2_STD_525_60;
1892 static int bttv_enum_input(struct file *file, void *priv,
1893 struct v4l2_input *i)
1895 struct bttv_fh *fh = priv;
1896 struct bttv *btv = fh->btv;
1901 if (n >= bttv_tvcards[btv->c.type].video_inputs)
1904 memset(i, 0, sizeof(*i));
1907 i->type = V4L2_INPUT_TYPE_CAMERA;
1910 if (btv->tuner_type != TUNER_ABSENT && i->index == 0) {
1911 sprintf(i->name, "Television");
1912 i->type = V4L2_INPUT_TYPE_TUNER;
1914 } else if (i->index == btv->svhs) {
1915 sprintf(i->name, "S-Video");
1917 sprintf(i->name, "Composite%d", i->index);
1920 if (i->index == btv->input) {
1921 __u32 dstatus = btread(BT848_DSTATUS);
1922 if (0 == (dstatus & BT848_DSTATUS_PRES))
1923 i->status |= V4L2_IN_ST_NO_SIGNAL;
1924 if (0 == (dstatus & BT848_DSTATUS_HLOC))
1925 i->status |= V4L2_IN_ST_NO_H_LOCK;
1928 for (n = 0; n < BTTV_TVNORMS; n++)
1929 i->std |= bttv_tvnorms[n].v4l2_id;
1934 static int bttv_g_input(struct file *file, void *priv, unsigned int *i)
1936 struct bttv_fh *fh = priv;
1937 struct bttv *btv = fh->btv;
1943 static int bttv_s_input(struct file *file, void *priv, unsigned int i)
1945 struct bttv_fh *fh = priv;
1946 struct bttv *btv = fh->btv;
1950 err = v4l2_prio_check(&btv->prio, &fh->prio);
1954 if (i > bttv_tvcards[btv->c.type].video_inputs)
1957 mutex_lock(&btv->lock);
1958 set_input(btv, i, btv->tvnorm);
1959 mutex_unlock(&btv->lock);
1963 static int bttv_s_tuner(struct file *file, void *priv,
1964 struct v4l2_tuner *t)
1966 struct bttv_fh *fh = priv;
1967 struct bttv *btv = fh->btv;
1970 err = v4l2_prio_check(&btv->prio, &fh->prio);
1974 if (btv->tuner_type == TUNER_ABSENT)
1980 mutex_lock(&btv->lock);
1981 bttv_call_i2c_clients(btv, VIDIOC_S_TUNER, t);
1983 if (btv->audio_mode_gpio)
1984 btv->audio_mode_gpio(btv, t, 1);
1986 mutex_unlock(&btv->lock);
1991 static int bttv_g_frequency(struct file *file, void *priv,
1992 struct v4l2_frequency *f)
1994 struct bttv_fh *fh = priv;
1995 struct bttv *btv = fh->btv;
1998 err = v4l2_prio_check(&btv->prio, &fh->prio);
2002 f->type = btv->radio_user ? V4L2_TUNER_RADIO : V4L2_TUNER_ANALOG_TV;
2003 f->frequency = btv->freq;
2008 static int bttv_s_frequency(struct file *file, void *priv,
2009 struct v4l2_frequency *f)
2011 struct bttv_fh *fh = priv;
2012 struct bttv *btv = fh->btv;
2015 err = v4l2_prio_check(&btv->prio, &fh->prio);
2019 if (unlikely(f->tuner != 0))
2021 if (unlikely(f->type != (btv->radio_user
2022 ? V4L2_TUNER_RADIO : V4L2_TUNER_ANALOG_TV)))
2024 mutex_lock(&btv->lock);
2025 btv->freq = f->frequency;
2026 bttv_call_i2c_clients(btv, VIDIOC_S_FREQUENCY, f);
2027 if (btv->has_matchbox && btv->radio_user)
2028 tea5757_set_freq(btv, btv->freq);
2029 mutex_unlock(&btv->lock);
2033 static int bttv_log_status(struct file *file, void *f)
2035 struct bttv_fh *fh = f;
2036 struct bttv *btv = fh->btv;
2038 printk(KERN_INFO "bttv%d: ======== START STATUS CARD #%d ========\n",
2039 btv->c.nr, btv->c.nr);
2040 bttv_call_i2c_clients(btv, VIDIOC_LOG_STATUS, NULL);
2041 printk(KERN_INFO "bttv%d: ======== END STATUS CARD #%d ========\n",
2042 btv->c.nr, btv->c.nr);
2046 #ifdef CONFIG_VIDEO_ADV_DEBUG
2047 static int bttv_g_register(struct file *file, void *f,
2048 struct v4l2_dbg_register *reg)
2050 struct bttv_fh *fh = f;
2051 struct bttv *btv = fh->btv;
2053 if (!capable(CAP_SYS_ADMIN))
2056 if (!v4l2_chip_match_host(®->match))
2059 /* bt848 has a 12-bit register space */
2061 reg->val = btread(reg->reg);
2067 static int bttv_s_register(struct file *file, void *f,
2068 struct v4l2_dbg_register *reg)
2070 struct bttv_fh *fh = f;
2071 struct bttv *btv = fh->btv;
2073 if (!capable(CAP_SYS_ADMIN))
2076 if (!v4l2_chip_match_host(®->match))
2079 /* bt848 has a 12-bit register space */
2081 btwrite(reg->val, reg->reg);
2087 /* Given cropping boundaries b and the scaled width and height of a
2088 single field or frame, which must not exceed hardware limits, this
2089 function adjusts the cropping parameters c. */
2091 bttv_crop_adjust (struct bttv_crop * c,
2092 const struct v4l2_rect * b,
2095 enum v4l2_field field)
2097 __s32 frame_height = height << !V4L2_FIELD_HAS_BOTH(field);
2101 if (width < c->min_scaled_width) {
2102 /* Max. hor. scale factor 16:1. */
2103 c->rect.width = width * 16;
2104 } else if (width > c->max_scaled_width) {
2105 /* Min. hor. scale factor 1:1. */
2106 c->rect.width = width;
2108 max_left = b->left + b->width - width;
2109 max_left = min(max_left, (__s32) MAX_HDELAY);
2110 if (c->rect.left > max_left)
2111 c->rect.left = max_left;
2114 if (height < c->min_scaled_height) {
2115 /* Max. vert. scale factor 16:1, single fields 8:1. */
2116 c->rect.height = height * 16;
2117 } else if (frame_height > c->max_scaled_height) {
2118 /* Min. vert. scale factor 1:1.
2119 Top and height count field lines times two. */
2120 c->rect.height = (frame_height + 1) & ~1;
2122 max_top = b->top + b->height - c->rect.height;
2123 if (c->rect.top > max_top)
2124 c->rect.top = max_top;
2127 bttv_crop_calc_limits(c);
2130 /* Returns an error if scaling to a frame or single field with the given
2131 width and height is not possible with the current cropping parameters
2132 and width aligned according to width_mask. If adjust_size is TRUE the
2133 function may adjust the width and/or height instead, rounding width
2134 to (width + width_bias) & width_mask. If adjust_crop is TRUE it may
2135 also adjust the current cropping parameters to get closer to the
2136 desired image size. */
2138 limit_scaled_size (struct bttv_fh * fh,
2141 enum v4l2_field field,
2142 unsigned int width_mask,
2143 unsigned int width_bias,
2147 struct bttv *btv = fh->btv;
2148 const struct v4l2_rect *b;
2149 struct bttv_crop *c;
2156 BUG_ON((int) width_mask >= 0 ||
2157 width_bias >= (unsigned int) -width_mask);
2159 /* Make sure tvnorm, vbi_end and the current cropping parameters
2160 remain consistent until we're done. */
2161 mutex_lock(&btv->lock);
2163 b = &bttv_tvnorms[btv->tvnorm].cropcap.bounds;
2165 /* Do crop - use current, don't - use default parameters. */
2166 c = &btv->crop[!!fh->do_crop];
2171 && !locked_btres(btv, VIDEO_RESOURCES)) {
2175 /* We cannot scale up. When the scaled image is larger
2176 than crop.rect we adjust the crop.rect as required
2177 by the V4L2 spec, hence cropcap.bounds are our limit. */
2178 max_width = min(b->width, (__s32) MAX_HACTIVE);
2179 max_height = b->height;
2181 /* We cannot capture the same line as video and VBI data.
2182 Note btv->vbi_end is really a minimum, see
2183 bttv_vbi_try_fmt(). */
2184 if (btv->vbi_end > b->top) {
2185 max_height -= btv->vbi_end - b->top;
2187 if (min_height > max_height)
2192 if (btv->vbi_end > c->rect.top)
2195 min_width = c->min_scaled_width;
2196 min_height = c->min_scaled_height;
2197 max_width = c->max_scaled_width;
2198 max_height = c->max_scaled_height;
2203 min_width = (min_width - width_mask - 1) & width_mask;
2204 max_width = max_width & width_mask;
2206 /* Max. scale factor is 16:1 for frames, 8:1 for fields. */
2207 min_height = min_height;
2208 /* Min. scale factor is 1:1. */
2209 max_height >>= !V4L2_FIELD_HAS_BOTH(field);
2212 *width = clamp(*width, min_width, max_width);
2213 *height = clamp(*height, min_height, max_height);
2215 /* Round after clamping to avoid overflow. */
2216 *width = (*width + width_bias) & width_mask;
2219 bttv_crop_adjust(c, b, *width, *height, field);
2221 if (btv->vbi_end > c->rect.top) {
2222 /* Move the crop window out of the way. */
2223 c->rect.top = btv->vbi_end;
2228 if (*width < min_width ||
2229 *height < min_height ||
2230 *width > max_width ||
2231 *height > max_height ||
2232 0 != (*width & ~width_mask))
2236 rc = 0; /* success */
2239 mutex_unlock(&btv->lock);
2244 /* Returns an error if the given overlay window dimensions are not
2245 possible with the current cropping parameters. If adjust_size is
2246 TRUE the function may adjust the window width and/or height
2247 instead, however it always rounds the horizontal position and
2248 width as btcx_align() does. If adjust_crop is TRUE the function
2249 may also adjust the current cropping parameters to get closer
2250 to the desired window size. */
2252 verify_window (struct bttv_fh * fh,
2253 struct v4l2_window * win,
2257 enum v4l2_field field;
2258 unsigned int width_mask;
2261 if (win->w.width < 48 || win->w.height < 32)
2263 if (win->clipcount > 2048)
2268 if (V4L2_FIELD_ANY == field) {
2271 height2 = fh->btv->crop[!!fh->do_crop].rect.height >> 1;
2272 field = (win->w.height > height2)
2273 ? V4L2_FIELD_INTERLACED
2277 case V4L2_FIELD_TOP:
2278 case V4L2_FIELD_BOTTOM:
2279 case V4L2_FIELD_INTERLACED:
2285 /* 4-byte alignment. */
2286 if (NULL == fh->ovfmt)
2289 switch (fh->ovfmt->depth) {
2303 win->w.width -= win->w.left & ~width_mask;
2304 win->w.left = (win->w.left - width_mask - 1) & width_mask;
2306 rc = limit_scaled_size(fh, &win->w.width, &win->w.height,
2308 /* width_bias: round down */ 0,
2309 adjust_size, adjust_crop);
2317 static int setup_window(struct bttv_fh *fh, struct bttv *btv,
2318 struct v4l2_window *win, int fixup)
2320 struct v4l2_clip *clips = NULL;
2321 int n,size,retval = 0;
2323 if (NULL == fh->ovfmt)
2325 if (!(fh->ovfmt->flags & FORMAT_FLAGS_PACKED))
2327 retval = verify_window(fh, win,
2328 /* adjust_size */ fixup,
2329 /* adjust_crop */ fixup);
2333 /* copy clips -- luckily v4l1 + v4l2 are binary
2334 compatible here ...*/
2336 size = sizeof(*clips)*(n+4);
2337 clips = kmalloc(size,GFP_KERNEL);
2341 if (copy_from_user(clips,win->clips,sizeof(struct v4l2_clip)*n)) {
2346 /* clip against screen */
2347 if (NULL != btv->fbuf.base)
2348 n = btcx_screen_clips(btv->fbuf.fmt.width, btv->fbuf.fmt.height,
2350 btcx_sort_clips(clips,n);
2352 /* 4-byte alignments */
2353 switch (fh->ovfmt->depth) {
2356 btcx_align(&win->w, clips, n, 3);
2359 btcx_align(&win->w, clips, n, 1);
2362 /* no alignment fixups needed */
2368 mutex_lock(&fh->cap.vb_lock);
2369 kfree(fh->ov.clips);
2370 fh->ov.clips = clips;
2374 fh->ov.field = win->field;
2375 fh->ov.setup_ok = 1;
2376 btv->init.ov.w.width = win->w.width;
2377 btv->init.ov.w.height = win->w.height;
2378 btv->init.ov.field = win->field;
2380 /* update overlay if needed */
2382 if (check_btres(fh, RESOURCE_OVERLAY)) {
2383 struct bttv_buffer *new;
2385 new = videobuf_sg_alloc(sizeof(*new));
2386 new->crop = btv->crop[!!fh->do_crop].rect;
2387 bttv_overlay_risc(btv, &fh->ov, fh->ovfmt, new);
2388 retval = bttv_switch_overlay(btv,fh,new);
2390 mutex_unlock(&fh->cap.vb_lock);
2394 /* ----------------------------------------------------------------------- */
2396 static struct videobuf_queue* bttv_queue(struct bttv_fh *fh)
2398 struct videobuf_queue* q = NULL;
2401 case V4L2_BUF_TYPE_VIDEO_CAPTURE:
2404 case V4L2_BUF_TYPE_VBI_CAPTURE:
2413 static int bttv_resource(struct bttv_fh *fh)
2418 case V4L2_BUF_TYPE_VIDEO_CAPTURE:
2419 res = RESOURCE_VIDEO_STREAM;
2421 case V4L2_BUF_TYPE_VBI_CAPTURE:
2430 static int bttv_switch_type(struct bttv_fh *fh, enum v4l2_buf_type type)
2432 struct videobuf_queue *q = bttv_queue(fh);
2433 int res = bttv_resource(fh);
2435 if (check_btres(fh,res))
2437 if (videobuf_queue_is_busy(q))
2444 pix_format_set_size (struct v4l2_pix_format * f,
2445 const struct bttv_format * fmt,
2447 unsigned int height)
2452 if (fmt->flags & FORMAT_FLAGS_PLANAR) {
2453 f->bytesperline = width; /* Y plane */
2454 f->sizeimage = (width * height * fmt->depth) >> 3;
2456 f->bytesperline = (width * fmt->depth) >> 3;
2457 f->sizeimage = height * f->bytesperline;
2461 static int bttv_g_fmt_vid_cap(struct file *file, void *priv,
2462 struct v4l2_format *f)
2464 struct bttv_fh *fh = priv;
2466 pix_format_set_size(&f->fmt.pix, fh->fmt,
2467 fh->width, fh->height);
2468 f->fmt.pix.field = fh->cap.field;
2469 f->fmt.pix.pixelformat = fh->fmt->fourcc;
2474 static int bttv_g_fmt_vid_overlay(struct file *file, void *priv,
2475 struct v4l2_format *f)
2477 struct bttv_fh *fh = priv;
2479 f->fmt.win.w = fh->ov.w;
2480 f->fmt.win.field = fh->ov.field;
2485 static int bttv_try_fmt_vid_cap(struct file *file, void *priv,
2486 struct v4l2_format *f)
2488 const struct bttv_format *fmt;
2489 struct bttv_fh *fh = priv;
2490 struct bttv *btv = fh->btv;
2491 enum v4l2_field field;
2492 __s32 width, height;
2495 fmt = format_by_fourcc(f->fmt.pix.pixelformat);
2499 field = f->fmt.pix.field;
2501 if (V4L2_FIELD_ANY == field) {
2504 height2 = btv->crop[!!fh->do_crop].rect.height >> 1;
2505 field = (f->fmt.pix.height > height2)
2506 ? V4L2_FIELD_INTERLACED
2507 : V4L2_FIELD_BOTTOM;
2510 if (V4L2_FIELD_SEQ_BT == field)
2511 field = V4L2_FIELD_SEQ_TB;
2514 case V4L2_FIELD_TOP:
2515 case V4L2_FIELD_BOTTOM:
2516 case V4L2_FIELD_ALTERNATE:
2517 case V4L2_FIELD_INTERLACED:
2519 case V4L2_FIELD_SEQ_TB:
2520 if (fmt->flags & FORMAT_FLAGS_PLANAR)
2527 width = f->fmt.pix.width;
2528 height = f->fmt.pix.height;
2530 rc = limit_scaled_size(fh, &width, &height, field,
2531 /* width_mask: 4 pixels */ ~3,
2532 /* width_bias: nearest */ 2,
2533 /* adjust_size */ 1,
2534 /* adjust_crop */ 0);
2538 /* update data for the application */
2539 f->fmt.pix.field = field;
2540 pix_format_set_size(&f->fmt.pix, fmt, width, height);
2545 static int bttv_try_fmt_vid_overlay(struct file *file, void *priv,
2546 struct v4l2_format *f)
2548 struct bttv_fh *fh = priv;
2550 return verify_window(fh, &f->fmt.win,
2551 /* adjust_size */ 1,
2552 /* adjust_crop */ 0);
2555 static int bttv_s_fmt_vid_cap(struct file *file, void *priv,
2556 struct v4l2_format *f)
2559 const struct bttv_format *fmt;
2560 struct bttv_fh *fh = priv;
2561 struct bttv *btv = fh->btv;
2562 __s32 width, height;
2563 enum v4l2_field field;
2565 retval = bttv_switch_type(fh, f->type);
2569 retval = bttv_try_fmt_vid_cap(file, priv, f);
2573 width = f->fmt.pix.width;
2574 height = f->fmt.pix.height;
2575 field = f->fmt.pix.field;
2577 retval = limit_scaled_size(fh, &width, &height, f->fmt.pix.field,
2578 /* width_mask: 4 pixels */ ~3,
2579 /* width_bias: nearest */ 2,
2580 /* adjust_size */ 1,
2581 /* adjust_crop */ 1);
2585 f->fmt.pix.field = field;
2587 fmt = format_by_fourcc(f->fmt.pix.pixelformat);
2589 /* update our state informations */
2590 mutex_lock(&fh->cap.vb_lock);
2592 fh->cap.field = f->fmt.pix.field;
2593 fh->cap.last = V4L2_FIELD_NONE;
2594 fh->width = f->fmt.pix.width;
2595 fh->height = f->fmt.pix.height;
2596 btv->init.fmt = fmt;
2597 btv->init.width = f->fmt.pix.width;
2598 btv->init.height = f->fmt.pix.height;
2599 mutex_unlock(&fh->cap.vb_lock);
2604 static int bttv_s_fmt_vid_overlay(struct file *file, void *priv,
2605 struct v4l2_format *f)
2607 struct bttv_fh *fh = priv;
2608 struct bttv *btv = fh->btv;
2610 if (no_overlay > 0) {
2611 printk(KERN_ERR "V4L2_BUF_TYPE_VIDEO_OVERLAY: no_overlay\n");
2615 return setup_window(fh, btv, &f->fmt.win, 1);
2618 #ifdef CONFIG_VIDEO_V4L1_COMPAT
2619 static int vidiocgmbuf(struct file *file, void *priv, struct video_mbuf *mbuf)
2623 struct bttv_fh *fh = priv;
2625 mutex_lock(&fh->cap.vb_lock);
2626 retval = __videobuf_mmap_setup(&fh->cap, gbuffers, gbufsize,
2629 mutex_unlock(&fh->cap.vb_lock);
2634 memset(mbuf, 0, sizeof(*mbuf));
2635 mbuf->frames = gbuffers;
2636 mbuf->size = gbuffers * gbufsize;
2638 for (i = 0; i < gbuffers; i++)
2639 mbuf->offsets[i] = i * gbufsize;
2641 mutex_unlock(&fh->cap.vb_lock);
2646 static int bttv_querycap(struct file *file, void *priv,
2647 struct v4l2_capability *cap)
2649 struct bttv_fh *fh = priv;
2650 struct bttv *btv = fh->btv;
2655 strlcpy(cap->driver, "bttv", sizeof(cap->driver));
2656 strlcpy(cap->card, btv->video_dev->name, sizeof(cap->card));
2657 snprintf(cap->bus_info, sizeof(cap->bus_info),
2658 "PCI:%s", pci_name(btv->c.pci));
2659 cap->version = BTTV_VERSION_CODE;
2661 V4L2_CAP_VIDEO_CAPTURE |
2662 V4L2_CAP_VBI_CAPTURE |
2663 V4L2_CAP_READWRITE |
2665 if (no_overlay <= 0)
2666 cap->capabilities |= V4L2_CAP_VIDEO_OVERLAY;
2668 if (btv->tuner_type != TUNER_ABSENT)
2669 cap->capabilities |= V4L2_CAP_TUNER;
2673 static int bttv_enum_fmt_cap_ovr(struct v4l2_fmtdesc *f)
2677 for (i = 0; i < FORMATS; i++) {
2678 if (formats[i].fourcc != -1)
2680 if ((unsigned int)index == f->index)
2686 f->pixelformat = formats[i].fourcc;
2687 strlcpy(f->description, formats[i].name, sizeof(f->description));
2692 static int bttv_enum_fmt_vid_cap(struct file *file, void *priv,
2693 struct v4l2_fmtdesc *f)
2695 int rc = bttv_enum_fmt_cap_ovr(f);
2703 static int bttv_enum_fmt_vid_overlay(struct file *file, void *priv,
2704 struct v4l2_fmtdesc *f)
2708 if (no_overlay > 0) {
2709 printk(KERN_ERR "V4L2_BUF_TYPE_VIDEO_OVERLAY: no_overlay\n");
2713 rc = bttv_enum_fmt_cap_ovr(f);
2718 if (!(formats[rc].flags & FORMAT_FLAGS_PACKED))
2724 static int bttv_g_fbuf(struct file *file, void *f,
2725 struct v4l2_framebuffer *fb)
2727 struct bttv_fh *fh = f;
2728 struct bttv *btv = fh->btv;
2731 fb->capability = V4L2_FBUF_CAP_LIST_CLIPPING;
2733 fb->fmt.pixelformat = fh->ovfmt->fourcc;
2737 static int bttv_overlay(struct file *file, void *f, unsigned int on)
2739 struct bttv_fh *fh = f;
2740 struct bttv *btv = fh->btv;
2741 struct bttv_buffer *new;
2746 if (NULL == btv->fbuf.base)
2748 if (!fh->ov.setup_ok) {
2749 dprintk("bttv%d: overlay: !setup_ok\n", btv->c.nr);
2754 if (!check_alloc_btres(btv, fh, RESOURCE_OVERLAY))
2757 mutex_lock(&fh->cap.vb_lock);
2759 fh->ov.tvnorm = btv->tvnorm;
2760 new = videobuf_sg_alloc(sizeof(*new));
2761 new->crop = btv->crop[!!fh->do_crop].rect;
2762 bttv_overlay_risc(btv, &fh->ov, fh->ovfmt, new);
2768 retval = bttv_switch_overlay(btv, fh, new);
2769 mutex_unlock(&fh->cap.vb_lock);
2773 static int bttv_s_fbuf(struct file *file, void *f,
2774 struct v4l2_framebuffer *fb)
2776 struct bttv_fh *fh = f;
2777 struct bttv *btv = fh->btv;
2778 const struct bttv_format *fmt;
2781 if (!capable(CAP_SYS_ADMIN) &&
2782 !capable(CAP_SYS_RAWIO))
2786 fmt = format_by_fourcc(fb->fmt.pixelformat);
2789 if (0 == (fmt->flags & FORMAT_FLAGS_PACKED))
2793 if (fb->flags & V4L2_FBUF_FLAG_OVERLAY) {
2794 __s32 width = fb->fmt.width;
2795 __s32 height = fb->fmt.height;
2797 retval = limit_scaled_size(fh, &width, &height,
2798 V4L2_FIELD_INTERLACED,
2799 /* width_mask */ ~3,
2801 /* adjust_size */ 0,
2802 /* adjust_crop */ 0);
2808 mutex_lock(&fh->cap.vb_lock);
2809 btv->fbuf.base = fb->base;
2810 btv->fbuf.fmt.width = fb->fmt.width;
2811 btv->fbuf.fmt.height = fb->fmt.height;
2812 if (0 != fb->fmt.bytesperline)
2813 btv->fbuf.fmt.bytesperline = fb->fmt.bytesperline;
2815 btv->fbuf.fmt.bytesperline = btv->fbuf.fmt.width*fmt->depth/8;
2819 btv->init.ovfmt = fmt;
2820 if (fb->flags & V4L2_FBUF_FLAG_OVERLAY) {
2823 fh->ov.w.width = fb->fmt.width;
2824 fh->ov.w.height = fb->fmt.height;
2825 btv->init.ov.w.width = fb->fmt.width;
2826 btv->init.ov.w.height = fb->fmt.height;
2827 kfree(fh->ov.clips);
2828 fh->ov.clips = NULL;
2831 if (check_btres(fh, RESOURCE_OVERLAY)) {
2832 struct bttv_buffer *new;
2834 new = videobuf_sg_alloc(sizeof(*new));
2835 new->crop = btv->crop[!!fh->do_crop].rect;
2836 bttv_overlay_risc(btv, &fh->ov, fh->ovfmt, new);
2837 retval = bttv_switch_overlay(btv, fh, new);
2840 mutex_unlock(&fh->cap.vb_lock);
2844 static int bttv_reqbufs(struct file *file, void *priv,
2845 struct v4l2_requestbuffers *p)
2847 struct bttv_fh *fh = priv;
2848 return videobuf_reqbufs(bttv_queue(fh), p);
2851 static int bttv_querybuf(struct file *file, void *priv,
2852 struct v4l2_buffer *b)
2854 struct bttv_fh *fh = priv;
2855 return videobuf_querybuf(bttv_queue(fh), b);
2858 static int bttv_qbuf(struct file *file, void *priv, struct v4l2_buffer *b)
2860 struct bttv_fh *fh = priv;
2861 struct bttv *btv = fh->btv;
2862 int res = bttv_resource(fh);
2864 if (!check_alloc_btres(btv, fh, res))
2867 return videobuf_qbuf(bttv_queue(fh), b);
2870 static int bttv_dqbuf(struct file *file, void *priv, struct v4l2_buffer *b)
2872 struct bttv_fh *fh = priv;
2873 return videobuf_dqbuf(bttv_queue(fh), b,
2874 file->f_flags & O_NONBLOCK);
2877 static int bttv_streamon(struct file *file, void *priv,
2878 enum v4l2_buf_type type)
2880 struct bttv_fh *fh = priv;
2881 struct bttv *btv = fh->btv;
2882 int res = bttv_resource(fh);
2884 if (!check_alloc_btres(btv, fh, res))
2886 return videobuf_streamon(bttv_queue(fh));
2890 static int bttv_streamoff(struct file *file, void *priv,
2891 enum v4l2_buf_type type)
2893 struct bttv_fh *fh = priv;
2894 struct bttv *btv = fh->btv;
2896 int res = bttv_resource(fh);
2899 retval = videobuf_streamoff(bttv_queue(fh));
2902 free_btres(btv, fh, res);
2906 static int bttv_queryctrl(struct file *file, void *priv,
2907 struct v4l2_queryctrl *c)
2909 struct bttv_fh *fh = priv;
2910 struct bttv *btv = fh->btv;
2911 const struct v4l2_queryctrl *ctrl;
2913 if ((c->id < V4L2_CID_BASE ||
2914 c->id >= V4L2_CID_LASTP1) &&
2915 (c->id < V4L2_CID_PRIVATE_BASE ||
2916 c->id >= V4L2_CID_PRIVATE_LASTP1))
2919 if (!btv->volume_gpio && (c->id == V4L2_CID_AUDIO_VOLUME))
2922 ctrl = ctrl_by_id(c->id);
2924 *c = (NULL != ctrl) ? *ctrl : no_ctl;
2930 static int bttv_g_parm(struct file *file, void *f,
2931 struct v4l2_streamparm *parm)
2933 struct bttv_fh *fh = f;
2934 struct bttv *btv = fh->btv;
2935 struct v4l2_standard s;
2937 if (parm->type != V4L2_BUF_TYPE_VIDEO_CAPTURE)
2939 v4l2_video_std_construct(&s, bttv_tvnorms[btv->tvnorm].v4l2_id,
2940 bttv_tvnorms[btv->tvnorm].name);
2941 parm->parm.capture.timeperframe = s.frameperiod;
2945 static int bttv_g_tuner(struct file *file, void *priv,
2946 struct v4l2_tuner *t)
2948 struct bttv_fh *fh = priv;
2949 struct bttv *btv = fh->btv;
2951 if (btv->tuner_type == TUNER_ABSENT)
2956 mutex_lock(&btv->lock);
2957 memset(t, 0, sizeof(*t));
2958 t->rxsubchans = V4L2_TUNER_SUB_MONO;
2959 bttv_call_i2c_clients(btv, VIDIOC_G_TUNER, t);
2960 strcpy(t->name, "Television");
2961 t->capability = V4L2_TUNER_CAP_NORM;
2962 t->type = V4L2_TUNER_ANALOG_TV;
2963 if (btread(BT848_DSTATUS)&BT848_DSTATUS_HLOC)
2966 if (btv->audio_mode_gpio)
2967 btv->audio_mode_gpio(btv, t, 0);
2969 mutex_unlock(&btv->lock);
2973 static int bttv_g_priority(struct file *file, void *f, enum v4l2_priority *p)
2975 struct bttv_fh *fh = f;
2976 struct bttv *btv = fh->btv;
2978 *p = v4l2_prio_max(&btv->prio);
2983 static int bttv_s_priority(struct file *file, void *f,
2984 enum v4l2_priority prio)
2986 struct bttv_fh *fh = f;
2987 struct bttv *btv = fh->btv;
2989 return v4l2_prio_change(&btv->prio, &fh->prio, prio);
2992 static int bttv_cropcap(struct file *file, void *priv,
2993 struct v4l2_cropcap *cap)
2995 struct bttv_fh *fh = priv;
2996 struct bttv *btv = fh->btv;
2998 if (cap->type != V4L2_BUF_TYPE_VIDEO_CAPTURE &&
2999 cap->type != V4L2_BUF_TYPE_VIDEO_OVERLAY)
3002 *cap = bttv_tvnorms[btv->tvnorm].cropcap;
3007 static int bttv_g_crop(struct file *file, void *f, struct v4l2_crop *crop)
3009 struct bttv_fh *fh = f;
3010 struct bttv *btv = fh->btv;
3012 if (crop->type != V4L2_BUF_TYPE_VIDEO_CAPTURE &&
3013 crop->type != V4L2_BUF_TYPE_VIDEO_OVERLAY)
3016 /* No fh->do_crop = 1; because btv->crop[1] may be
3017 inconsistent with fh->width or fh->height and apps
3018 do not expect a change here. */
3020 crop->c = btv->crop[!!fh->do_crop].rect;
3025 static int bttv_s_crop(struct file *file, void *f, struct v4l2_crop *crop)
3027 struct bttv_fh *fh = f;
3028 struct bttv *btv = fh->btv;
3029 const struct v4l2_rect *b;
3037 if (crop->type != V4L2_BUF_TYPE_VIDEO_CAPTURE &&
3038 crop->type != V4L2_BUF_TYPE_VIDEO_OVERLAY)
3041 retval = v4l2_prio_check(&btv->prio, &fh->prio);
3045 /* Make sure tvnorm, vbi_end and the current cropping
3046 parameters remain consistent until we're done. Note
3047 read() may change vbi_end in check_alloc_btres(). */
3048 mutex_lock(&btv->lock);
3052 if (locked_btres(fh->btv, VIDEO_RESOURCES)) {
3053 mutex_unlock(&btv->lock);
3057 b = &bttv_tvnorms[btv->tvnorm].cropcap.bounds;
3060 b_right = b_left + b->width;
3061 b_bottom = b->top + b->height;
3063 b_top = max(b->top, btv->vbi_end);
3064 if (b_top + 32 >= b_bottom) {
3065 mutex_unlock(&btv->lock);
3069 /* Min. scaled size 48 x 32. */
3070 c.rect.left = clamp(crop->c.left, b_left, b_right - 48);
3071 c.rect.left = min(c.rect.left, (__s32) MAX_HDELAY);
3073 c.rect.width = clamp(crop->c.width,
3074 48, b_right - c.rect.left);
3076 c.rect.top = clamp(crop->c.top, b_top, b_bottom - 32);
3077 /* Top and height must be a multiple of two. */
3078 c.rect.top = (c.rect.top + 1) & ~1;
3080 c.rect.height = clamp(crop->c.height,
3081 32, b_bottom - c.rect.top);
3082 c.rect.height = (c.rect.height + 1) & ~1;
3084 bttv_crop_calc_limits(&c);
3088 mutex_unlock(&btv->lock);
3092 mutex_lock(&fh->cap.vb_lock);
3094 if (fh->width < c.min_scaled_width) {
3095 fh->width = c.min_scaled_width;
3096 btv->init.width = c.min_scaled_width;
3097 } else if (fh->width > c.max_scaled_width) {
3098 fh->width = c.max_scaled_width;
3099 btv->init.width = c.max_scaled_width;
3102 if (fh->height < c.min_scaled_height) {
3103 fh->height = c.min_scaled_height;
3104 btv->init.height = c.min_scaled_height;
3105 } else if (fh->height > c.max_scaled_height) {
3106 fh->height = c.max_scaled_height;
3107 btv->init.height = c.max_scaled_height;
3110 mutex_unlock(&fh->cap.vb_lock);
3115 static int bttv_g_audio(struct file *file, void *priv, struct v4l2_audio *a)
3117 if (unlikely(a->index))
3120 strcpy(a->name, "audio");
3124 static int bttv_s_audio(struct file *file, void *priv, struct v4l2_audio *a)
3126 if (unlikely(a->index))
3132 static ssize_t bttv_read(struct file *file, char __user *data,
3133 size_t count, loff_t *ppos)
3135 struct bttv_fh *fh = file->private_data;
3138 if (fh->btv->errors)
3139 bttv_reinit_bt848(fh->btv);
3140 dprintk("bttv%d: read count=%d type=%s\n",
3141 fh->btv->c.nr,(int)count,v4l2_type_names[fh->type]);
3144 case V4L2_BUF_TYPE_VIDEO_CAPTURE:
3145 if (!check_alloc_btres(fh->btv, fh, RESOURCE_VIDEO_READ)) {
3146 /* VIDEO_READ in use by another fh,
3147 or VIDEO_STREAM by any fh. */
3150 retval = videobuf_read_one(&fh->cap, data, count, ppos,
3151 file->f_flags & O_NONBLOCK);
3152 free_btres(fh->btv, fh, RESOURCE_VIDEO_READ);
3154 case V4L2_BUF_TYPE_VBI_CAPTURE:
3155 if (!check_alloc_btres(fh->btv,fh,RESOURCE_VBI))
3157 retval = videobuf_read_stream(&fh->vbi, data, count, ppos, 1,
3158 file->f_flags & O_NONBLOCK);
3166 static unsigned int bttv_poll(struct file *file, poll_table *wait)
3168 struct bttv_fh *fh = file->private_data;
3169 struct bttv_buffer *buf;
3170 enum v4l2_field field;
3172 if (V4L2_BUF_TYPE_VBI_CAPTURE == fh->type) {
3173 if (!check_alloc_btres(fh->btv,fh,RESOURCE_VBI))
3175 return videobuf_poll_stream(file, &fh->vbi, wait);
3178 if (check_btres(fh,RESOURCE_VIDEO_STREAM)) {
3179 /* streaming capture */
3180 if (list_empty(&fh->cap.stream))
3182 buf = list_entry(fh->cap.stream.next,struct bttv_buffer,vb.stream);
3184 /* read() capture */
3185 mutex_lock(&fh->cap.vb_lock);
3186 if (NULL == fh->cap.read_buf) {
3187 /* need to capture a new frame */
3188 if (locked_btres(fh->btv,RESOURCE_VIDEO_STREAM))
3190 fh->cap.read_buf = videobuf_sg_alloc(fh->cap.msize);
3191 if (NULL == fh->cap.read_buf)
3193 fh->cap.read_buf->memory = V4L2_MEMORY_USERPTR;
3194 field = videobuf_next_field(&fh->cap);
3195 if (0 != fh->cap.ops->buf_prepare(&fh->cap,fh->cap.read_buf,field)) {
3196 kfree (fh->cap.read_buf);
3197 fh->cap.read_buf = NULL;
3200 fh->cap.ops->buf_queue(&fh->cap,fh->cap.read_buf);
3201 fh->cap.read_off = 0;
3203 mutex_unlock(&fh->cap.vb_lock);
3204 buf = (struct bttv_buffer*)fh->cap.read_buf;
3207 poll_wait(file, &buf->vb.done, wait);
3208 if (buf->vb.state == VIDEOBUF_DONE ||
3209 buf->vb.state == VIDEOBUF_ERROR)
3210 return POLLIN|POLLRDNORM;
3213 mutex_unlock(&fh->cap.vb_lock);
3217 static int bttv_open(struct file *file)
3219 int minor = video_devdata(file)->minor;
3220 struct bttv *btv = NULL;
3222 enum v4l2_buf_type type = 0;
3225 dprintk(KERN_DEBUG "bttv: open minor=%d\n",minor);
3228 for (i = 0; i < bttv_num; i++) {
3229 if (bttvs[i].video_dev &&
3230 bttvs[i].video_dev->minor == minor) {
3232 type = V4L2_BUF_TYPE_VIDEO_CAPTURE;
3235 if (bttvs[i].vbi_dev &&
3236 bttvs[i].vbi_dev->minor == minor) {
3238 type = V4L2_BUF_TYPE_VBI_CAPTURE;
3247 dprintk(KERN_DEBUG "bttv%d: open called (type=%s)\n",
3248 btv->c.nr,v4l2_type_names[type]);
3250 /* allocate per filehandle data */
3251 fh = kmalloc(sizeof(*fh),GFP_KERNEL);
3256 file->private_data = fh;
3259 fh->ov.setup_ok = 0;
3260 v4l2_prio_open(&btv->prio,&fh->prio);
3262 videobuf_queue_sg_init(&fh->cap, &bttv_video_qops,
3263 &btv->c.pci->dev, &btv->s_lock,
3264 V4L2_BUF_TYPE_VIDEO_CAPTURE,
3265 V4L2_FIELD_INTERLACED,
3266 sizeof(struct bttv_buffer),
3268 videobuf_queue_sg_init(&fh->vbi, &bttv_vbi_qops,
3269 &btv->c.pci->dev, &btv->s_lock,
3270 V4L2_BUF_TYPE_VBI_CAPTURE,
3272 sizeof(struct bttv_buffer),
3274 set_tvnorm(btv,btv->tvnorm);
3275 set_input(btv, btv->input, btv->tvnorm);
3279 /* The V4L2 spec requires one global set of cropping parameters
3280 which only change on request. These are stored in btv->crop[1].
3281 However for compatibility with V4L apps and cropping unaware
3282 V4L2 apps we now reset the cropping parameters as seen through
3283 this fh, which is to say VIDIOC_G_CROP and scaling limit checks
3284 will use btv->crop[0], the default cropping parameters for the
3285 current video standard, and VIDIOC_S_FMT will not implicitely
3286 change the cropping parameters until VIDIOC_S_CROP has been
3288 fh->do_crop = !reset_crop; /* module parameter */
3290 /* Likewise there should be one global set of VBI capture
3291 parameters, but for compatibility with V4L apps and earlier
3292 driver versions each fh has its own parameters. */
3293 bttv_vbi_fmt_reset(&fh->vbi_fmt, btv->tvnorm);
3295 bttv_field_count(btv);
3300 static int bttv_release(struct file *file)
3302 struct bttv_fh *fh = file->private_data;
3303 struct bttv *btv = fh->btv;
3305 /* turn off overlay */
3306 if (check_btres(fh, RESOURCE_OVERLAY))
3307 bttv_switch_overlay(btv,fh,NULL);
3309 /* stop video capture */
3310 if (check_btres(fh, RESOURCE_VIDEO_STREAM)) {
3311 videobuf_streamoff(&fh->cap);
3312 free_btres(btv,fh,RESOURCE_VIDEO_STREAM);
3314 if (fh->cap.read_buf) {
3315 buffer_release(&fh->cap,fh->cap.read_buf);
3316 kfree(fh->cap.read_buf);
3318 if (check_btres(fh, RESOURCE_VIDEO_READ)) {
3319 free_btres(btv, fh, RESOURCE_VIDEO_READ);
3322 /* stop vbi capture */
3323 if (check_btres(fh, RESOURCE_VBI)) {
3324 videobuf_stop(&fh->vbi);
3325 free_btres(btv,fh,RESOURCE_VBI);
3329 videobuf_mmap_free(&fh->cap);
3330 videobuf_mmap_free(&fh->vbi);
3331 v4l2_prio_close(&btv->prio,&fh->prio);
3332 file->private_data = NULL;
3336 bttv_field_count(btv);
3345 bttv_mmap(struct file *file, struct vm_area_struct *vma)
3347 struct bttv_fh *fh = file->private_data;
3349 dprintk("bttv%d: mmap type=%s 0x%lx+%ld\n",
3350 fh->btv->c.nr, v4l2_type_names[fh->type],
3351 vma->vm_start, vma->vm_end - vma->vm_start);
3352 return videobuf_mmap_mapper(bttv_queue(fh),vma);
3355 static const struct v4l2_file_operations bttv_fops =
3357 .owner = THIS_MODULE,
3359 .release = bttv_release,
3360 .ioctl = video_ioctl2,
3366 static const struct v4l2_ioctl_ops bttv_ioctl_ops = {
3367 .vidioc_querycap = bttv_querycap,
3368 .vidioc_enum_fmt_vid_cap = bttv_enum_fmt_vid_cap,
3369 .vidioc_g_fmt_vid_cap = bttv_g_fmt_vid_cap,
3370 .vidioc_try_fmt_vid_cap = bttv_try_fmt_vid_cap,
3371 .vidioc_s_fmt_vid_cap = bttv_s_fmt_vid_cap,
3372 .vidioc_enum_fmt_vid_overlay = bttv_enum_fmt_vid_overlay,
3373 .vidioc_g_fmt_vid_overlay = bttv_g_fmt_vid_overlay,
3374 .vidioc_try_fmt_vid_overlay = bttv_try_fmt_vid_overlay,
3375 .vidioc_s_fmt_vid_overlay = bttv_s_fmt_vid_overlay,
3376 .vidioc_g_fmt_vbi_cap = bttv_g_fmt_vbi_cap,
3377 .vidioc_try_fmt_vbi_cap = bttv_try_fmt_vbi_cap,
3378 .vidioc_s_fmt_vbi_cap = bttv_s_fmt_vbi_cap,
3379 .vidioc_g_audio = bttv_g_audio,
3380 .vidioc_s_audio = bttv_s_audio,
3381 .vidioc_cropcap = bttv_cropcap,
3382 .vidioc_reqbufs = bttv_reqbufs,
3383 .vidioc_querybuf = bttv_querybuf,
3384 .vidioc_qbuf = bttv_qbuf,
3385 .vidioc_dqbuf = bttv_dqbuf,
3386 .vidioc_s_std = bttv_s_std,
3387 .vidioc_enum_input = bttv_enum_input,
3388 .vidioc_g_input = bttv_g_input,
3389 .vidioc_s_input = bttv_s_input,
3390 .vidioc_queryctrl = bttv_queryctrl,
3391 .vidioc_g_ctrl = bttv_g_ctrl,
3392 .vidioc_s_ctrl = bttv_s_ctrl,
3393 .vidioc_streamon = bttv_streamon,
3394 .vidioc_streamoff = bttv_streamoff,
3395 .vidioc_g_tuner = bttv_g_tuner,
3396 .vidioc_s_tuner = bttv_s_tuner,
3397 #ifdef CONFIG_VIDEO_V4L1_COMPAT
3398 .vidiocgmbuf = vidiocgmbuf,
3400 .vidioc_g_crop = bttv_g_crop,
3401 .vidioc_s_crop = bttv_s_crop,
3402 .vidioc_g_fbuf = bttv_g_fbuf,
3403 .vidioc_s_fbuf = bttv_s_fbuf,
3404 .vidioc_overlay = bttv_overlay,
3405 .vidioc_g_priority = bttv_g_priority,
3406 .vidioc_s_priority = bttv_s_priority,
3407 .vidioc_g_parm = bttv_g_parm,
3408 .vidioc_g_frequency = bttv_g_frequency,
3409 .vidioc_s_frequency = bttv_s_frequency,
3410 .vidioc_log_status = bttv_log_status,
3411 .vidioc_querystd = bttv_querystd,
3412 #ifdef CONFIG_VIDEO_ADV_DEBUG
3413 .vidioc_g_register = bttv_g_register,
3414 .vidioc_s_register = bttv_s_register,
3418 static struct video_device bttv_video_template = {
3421 .ioctl_ops = &bttv_ioctl_ops,
3422 .tvnorms = BTTV_NORMS,
3423 .current_norm = V4L2_STD_PAL,
3426 /* ----------------------------------------------------------------------- */
3427 /* radio interface */
3429 static int radio_open(struct file *file)
3431 int minor = video_devdata(file)->minor;
3432 struct bttv *btv = NULL;
3436 dprintk("bttv: open minor=%d\n",minor);
3439 for (i = 0; i < bttv_num; i++) {
3440 if (bttvs[i].radio_dev && bttvs[i].radio_dev->minor == minor) {
3450 dprintk("bttv%d: open called (radio)\n",btv->c.nr);
3452 /* allocate per filehandle data */
3453 fh = kmalloc(sizeof(*fh), GFP_KERNEL);
3458 file->private_data = fh;
3460 v4l2_prio_open(&btv->prio, &fh->prio);
3462 mutex_lock(&btv->lock);
3466 bttv_call_i2c_clients(btv,AUDC_SET_RADIO,NULL);
3467 audio_input(btv,TVAUDIO_INPUT_RADIO);
3469 mutex_unlock(&btv->lock);
3474 static int radio_release(struct file *file)
3476 struct bttv_fh *fh = file->private_data;
3477 struct bttv *btv = fh->btv;
3478 struct rds_command cmd;
3480 v4l2_prio_close(&btv->prio,&fh->prio);
3481 file->private_data = NULL;
3486 bttv_call_i2c_clients(btv, RDS_CMD_CLOSE, &cmd);
3491 static int radio_querycap(struct file *file, void *priv,
3492 struct v4l2_capability *cap)
3494 struct bttv_fh *fh = priv;
3495 struct bttv *btv = fh->btv;
3497 strcpy(cap->driver, "bttv");
3498 strlcpy(cap->card, btv->radio_dev->name, sizeof(cap->card));
3499 sprintf(cap->bus_info, "PCI:%s", pci_name(btv->c.pci));
3500 cap->version = BTTV_VERSION_CODE;
3501 cap->capabilities = V4L2_CAP_TUNER;
3506 static int radio_g_tuner(struct file *file, void *priv, struct v4l2_tuner *t)
3508 struct bttv_fh *fh = priv;
3509 struct bttv *btv = fh->btv;
3511 if (btv->tuner_type == TUNER_ABSENT)
3515 mutex_lock(&btv->lock);
3516 memset(t, 0, sizeof(*t));
3517 strcpy(t->name, "Radio");
3518 t->type = V4L2_TUNER_RADIO;
3520 bttv_call_i2c_clients(btv, VIDIOC_G_TUNER, t);
3522 if (btv->audio_mode_gpio)
3523 btv->audio_mode_gpio(btv, t, 0);
3525 mutex_unlock(&btv->lock);
3530 static int radio_enum_input(struct file *file, void *priv,
3531 struct v4l2_input *i)
3536 strcpy(i->name, "Radio");
3537 i->type = V4L2_INPUT_TYPE_TUNER;
3542 static int radio_g_audio(struct file *file, void *priv,
3543 struct v4l2_audio *a)
3545 if (unlikely(a->index))
3548 strcpy(a->name, "Radio");
3553 static int radio_s_tuner(struct file *file, void *priv,
3554 struct v4l2_tuner *t)
3556 struct bttv_fh *fh = priv;
3557 struct bttv *btv = fh->btv;
3562 bttv_call_i2c_clients(btv, VIDIOC_G_TUNER, t);
3566 static int radio_s_audio(struct file *file, void *priv,
3567 struct v4l2_audio *a)
3569 if (unlikely(a->index))
3575 static int radio_s_input(struct file *filp, void *priv, unsigned int i)
3583 static int radio_s_std(struct file *file, void *fh, v4l2_std_id *norm)
3588 static int radio_queryctrl(struct file *file, void *priv,
3589 struct v4l2_queryctrl *c)
3591 const struct v4l2_queryctrl *ctrl;
3593 if (c->id < V4L2_CID_BASE ||
3594 c->id >= V4L2_CID_LASTP1)
3597 if (c->id == V4L2_CID_AUDIO_MUTE) {
3598 ctrl = ctrl_by_id(c->id);
3606 static int radio_g_input(struct file *filp, void *priv, unsigned int *i)
3612 static ssize_t radio_read(struct file *file, char __user *data,
3613 size_t count, loff_t *ppos)
3615 struct bttv_fh *fh = file->private_data;
3616 struct bttv *btv = fh->btv;
3617 struct rds_command cmd;
3618 cmd.block_count = count/3;
3620 cmd.instance = file;
3621 cmd.result = -ENODEV;
3623 bttv_call_i2c_clients(btv, RDS_CMD_READ, &cmd);
3628 static unsigned int radio_poll(struct file *file, poll_table *wait)
3630 struct bttv_fh *fh = file->private_data;
3631 struct bttv *btv = fh->btv;
3632 struct rds_command cmd;
3633 cmd.instance = file;
3634 cmd.event_list = wait;
3635 cmd.result = -ENODEV;
3636 bttv_call_i2c_clients(btv, RDS_CMD_POLL, &cmd);
3641 static const struct v4l2_file_operations radio_fops =
3643 .owner = THIS_MODULE,
3646 .release = radio_release,
3647 .ioctl = video_ioctl2,
3651 static const struct v4l2_ioctl_ops radio_ioctl_ops = {
3652 .vidioc_querycap = radio_querycap,
3653 .vidioc_g_tuner = radio_g_tuner,
3654 .vidioc_enum_input = radio_enum_input,
3655 .vidioc_g_audio = radio_g_audio,
3656 .vidioc_s_tuner = radio_s_tuner,
3657 .vidioc_s_audio = radio_s_audio,
3658 .vidioc_s_input = radio_s_input,
3659 .vidioc_s_std = radio_s_std,
3660 .vidioc_queryctrl = radio_queryctrl,
3661 .vidioc_g_input = radio_g_input,
3662 .vidioc_g_ctrl = bttv_g_ctrl,
3663 .vidioc_s_ctrl = bttv_s_ctrl,
3664 .vidioc_g_frequency = bttv_g_frequency,
3665 .vidioc_s_frequency = bttv_s_frequency,
3668 static struct video_device radio_template = {
3669 .fops = &radio_fops,
3671 .ioctl_ops = &radio_ioctl_ops,
3674 /* ----------------------------------------------------------------------- */
3675 /* some debug code */
3677 static int bttv_risc_decode(u32 risc)
3679 static char *instr[16] = {
3680 [ BT848_RISC_WRITE >> 28 ] = "write",
3681 [ BT848_RISC_SKIP >> 28 ] = "skip",
3682 [ BT848_RISC_WRITEC >> 28 ] = "writec",
3683 [ BT848_RISC_JUMP >> 28 ] = "jump",
3684 [ BT848_RISC_SYNC >> 28 ] = "sync",
3685 [ BT848_RISC_WRITE123 >> 28 ] = "write123",
3686 [ BT848_RISC_SKIP123 >> 28 ] = "skip123",
3687 [ BT848_RISC_WRITE1S23 >> 28 ] = "write1s23",
3689 static int incr[16] = {
3690 [ BT848_RISC_WRITE >> 28 ] = 2,
3691 [ BT848_RISC_JUMP >> 28 ] = 2,
3692 [ BT848_RISC_SYNC >> 28 ] = 2,
3693 [ BT848_RISC_WRITE123 >> 28 ] = 5,
3694 [ BT848_RISC_SKIP123 >> 28 ] = 2,
3695 [ BT848_RISC_WRITE1S23 >> 28 ] = 3,
3697 static char *bits[] = {
3698 "be0", "be1", "be2", "be3/resync",
3699 "set0", "set1", "set2", "set3",
3700 "clr0", "clr1", "clr2", "clr3",
3701 "irq", "res", "eol", "sol",
3705 printk("0x%08x [ %s", risc,
3706 instr[risc >> 28] ? instr[risc >> 28] : "INVALID");
3707 for (i = ARRAY_SIZE(bits)-1; i >= 0; i--)
3708 if (risc & (1 << (i + 12)))
3709 printk(" %s",bits[i]);
3710 printk(" count=%d ]\n", risc & 0xfff);
3711 return incr[risc >> 28] ? incr[risc >> 28] : 1;
3714 static void bttv_risc_disasm(struct bttv *btv,
3715 struct btcx_riscmem *risc)
3719 printk("%s: risc disasm: %p [dma=0x%08lx]\n",
3720 btv->c.name, risc->cpu, (unsigned long)risc->dma);
3721 for (i = 0; i < (risc->size >> 2); i += n) {
3722 printk("%s: 0x%lx: ", btv->c.name,
3723 (unsigned long)(risc->dma + (i<<2)));
3724 n = bttv_risc_decode(le32_to_cpu(risc->cpu[i]));
3725 for (j = 1; j < n; j++)
3726 printk("%s: 0x%lx: 0x%08x [ arg #%d ]\n",
3727 btv->c.name, (unsigned long)(risc->dma + ((i+j)<<2)),
3729 if (0 == risc->cpu[i])
3734 static void bttv_print_riscaddr(struct bttv *btv)
3736 printk(" main: %08Lx\n",
3737 (unsigned long long)btv->main.dma);
3738 printk(" vbi : o=%08Lx e=%08Lx\n",
3739 btv->cvbi ? (unsigned long long)btv->cvbi->top.dma : 0,
3740 btv->cvbi ? (unsigned long long)btv->cvbi->bottom.dma : 0);
3741 printk(" cap : o=%08Lx e=%08Lx\n",
3742 btv->curr.top ? (unsigned long long)btv->curr.top->top.dma : 0,
3743 btv->curr.bottom ? (unsigned long long)btv->curr.bottom->bottom.dma : 0);
3744 printk(" scr : o=%08Lx e=%08Lx\n",
3745 btv->screen ? (unsigned long long)btv->screen->top.dma : 0,
3746 btv->screen ? (unsigned long long)btv->screen->bottom.dma : 0);
3747 bttv_risc_disasm(btv, &btv->main);
3750 /* ----------------------------------------------------------------------- */
3753 static char *irq_name[] = {
3754 "FMTCHG", // format change detected (525 vs. 625)
3755 "VSYNC", // vertical sync (new field)
3756 "HSYNC", // horizontal sync
3757 "OFLOW", // chroma/luma AGC overflow
3758 "HLOCK", // horizontal lock changed
3759 "VPRES", // video presence changed
3761 "I2CDONE", // hw irc operation finished
3762 "GPINT", // gpio port triggered irq
3764 "RISCI", // risc instruction triggered irq
3765 "FBUS", // pixel data fifo dropped data (high pci bus latencies)
3766 "FTRGT", // pixel data fifo overrun
3767 "FDSR", // fifo data stream resyncronisation
3768 "PPERR", // parity error (data transfer)
3769 "RIPERR", // parity error (read risc instructions)
3770 "PABORT", // pci abort
3771 "OCERR", // risc instruction error
3772 "SCERR", // syncronisation error
3775 static void bttv_print_irqbits(u32 print, u32 mark)
3780 for (i = 0; i < ARRAY_SIZE(irq_name); i++) {
3781 if (print & (1 << i))
3782 printk(" %s",irq_name[i]);
3783 if (mark & (1 << i))
3788 static void bttv_irq_debug_low_latency(struct bttv *btv, u32 rc)
3790 printk("bttv%d: irq: skipped frame [main=%lx,o_vbi=%lx,o_field=%lx,rc=%lx]\n",
3792 (unsigned long)btv->main.dma,
3793 (unsigned long)le32_to_cpu(btv->main.cpu[RISC_SLOT_O_VBI+1]),
3794 (unsigned long)le32_to_cpu(btv->main.cpu[RISC_SLOT_O_FIELD+1]),
3797 if (0 == (btread(BT848_DSTATUS) & BT848_DSTATUS_HLOC)) {
3798 printk("bttv%d: Oh, there (temporarely?) is no input signal. "
3799 "Ok, then this is harmless, don't worry ;)\n",
3803 printk("bttv%d: Uhm. Looks like we have unusual high IRQ latencies.\n",
3805 printk("bttv%d: Lets try to catch the culpit red-handed ...\n",
3811 bttv_irq_next_video(struct bttv *btv, struct bttv_buffer_set *set)
3813 struct bttv_buffer *item;
3815 memset(set,0,sizeof(*set));
3817 /* capture request ? */
3818 if (!list_empty(&btv->capture)) {
3820 item = list_entry(btv->capture.next, struct bttv_buffer, vb.queue);
3821 if (V4L2_FIELD_HAS_TOP(item->vb.field))
3823 if (V4L2_FIELD_HAS_BOTTOM(item->vb.field))
3826 /* capture request for other field ? */
3827 if (!V4L2_FIELD_HAS_BOTH(item->vb.field) &&
3828 (item->vb.queue.next != &btv->capture)) {
3829 item = list_entry(item->vb.queue.next, struct bttv_buffer, vb.queue);
3830 if (!V4L2_FIELD_HAS_BOTH(item->vb.field)) {
3831 if (NULL == set->top &&
3832 V4L2_FIELD_TOP == item->vb.field) {
3835 if (NULL == set->bottom &&
3836 V4L2_FIELD_BOTTOM == item->vb.field) {
3839 if (NULL != set->top && NULL != set->bottom)
3845 /* screen overlay ? */
3846 if (NULL != btv->screen) {
3847 if (V4L2_FIELD_HAS_BOTH(btv->screen->vb.field)) {
3848 if (NULL == set->top && NULL == set->bottom) {
3849 set->top = btv->screen;
3850 set->bottom = btv->screen;
3853 if (V4L2_FIELD_TOP == btv->screen->vb.field &&
3855 set->top = btv->screen;
3857 if (V4L2_FIELD_BOTTOM == btv->screen->vb.field &&
3858 NULL == set->bottom) {
3859 set->bottom = btv->screen;
3864 dprintk("bttv%d: next set: top=%p bottom=%p [screen=%p,irq=%d,%d]\n",
3865 btv->c.nr,set->top, set->bottom,
3866 btv->screen,set->frame_irq,set->top_irq);
3871 bttv_irq_wakeup_video(struct bttv *btv, struct bttv_buffer_set *wakeup,
3872 struct bttv_buffer_set *curr, unsigned int state)
3876 do_gettimeofday(&ts);
3878 if (wakeup->top == wakeup->bottom) {
3879 if (NULL != wakeup->top && curr->top != wakeup->top) {
3881 printk("bttv%d: wakeup: both=%p\n",btv->c.nr,wakeup->top);
3882 wakeup->top->vb.ts = ts;
3883 wakeup->top->vb.field_count = btv->field_count;
3884 wakeup->top->vb.state = state;
3885 wake_up(&wakeup->top->vb.done);
3888 if (NULL != wakeup->top && curr->top != wakeup->top) {
3890 printk("bttv%d: wakeup: top=%p\n",btv->c.nr,wakeup->top);
3891 wakeup->top->vb.ts = ts;
3892 wakeup->top->vb.field_count = btv->field_count;
3893 wakeup->top->vb.state = state;
3894 wake_up(&wakeup->top->vb.done);
3896 if (NULL != wakeup->bottom && curr->bottom != wakeup->bottom) {
3898 printk("bttv%d: wakeup: bottom=%p\n",btv->c.nr,wakeup->bottom);
3899 wakeup->bottom->vb.ts = ts;
3900 wakeup->bottom->vb.field_count = btv->field_count;
3901 wakeup->bottom->vb.state = state;
3902 wake_up(&wakeup->bottom->vb.done);
3908 bttv_irq_wakeup_vbi(struct bttv *btv, struct bttv_buffer *wakeup,
3916 do_gettimeofday(&ts);
3918 wakeup->vb.field_count = btv->field_count;
3919 wakeup->vb.state = state;
3920 wake_up(&wakeup->vb.done);
3923 static void bttv_irq_timeout(unsigned long data)
3925 struct bttv *btv = (struct bttv *)data;
3926 struct bttv_buffer_set old,new;
3927 struct bttv_buffer *ovbi;
3928 struct bttv_buffer *item;
3929 unsigned long flags;
3932 printk(KERN_INFO "bttv%d: timeout: drop=%d irq=%d/%d, risc=%08x, ",
3933 btv->c.nr, btv->framedrop, btv->irq_me, btv->irq_total,
3934 btread(BT848_RISC_COUNT));
3935 bttv_print_irqbits(btread(BT848_INT_STAT),0);
3939 spin_lock_irqsave(&btv->s_lock,flags);
3941 /* deactivate stuff */
3942 memset(&new,0,sizeof(new));
3948 bttv_buffer_activate_video(btv, &new);
3949 bttv_buffer_activate_vbi(btv, NULL);
3950 bttv_set_dma(btv, 0);
3953 bttv_irq_wakeup_video(btv, &old, &new, VIDEOBUF_ERROR);
3954 bttv_irq_wakeup_vbi(btv, ovbi, VIDEOBUF_ERROR);
3956 /* cancel all outstanding capture / vbi requests */
3957 while (!list_empty(&btv->capture)) {
3958 item = list_entry(btv->capture.next, struct bttv_buffer, vb.queue);
3959 list_del(&item->vb.queue);
3960 item->vb.state = VIDEOBUF_ERROR;
3961 wake_up(&item->vb.done);
3963 while (!list_empty(&btv->vcapture)) {
3964 item = list_entry(btv->vcapture.next, struct bttv_buffer, vb.queue);
3965 list_del(&item->vb.queue);
3966 item->vb.state = VIDEOBUF_ERROR;
3967 wake_up(&item->vb.done);
3971 spin_unlock_irqrestore(&btv->s_lock,flags);
3975 bttv_irq_wakeup_top(struct bttv *btv)
3977 struct bttv_buffer *wakeup = btv->curr.top;
3982 spin_lock(&btv->s_lock);
3983 btv->curr.top_irq = 0;
3984 btv->curr.top = NULL;
3985 bttv_risc_hook(btv, RISC_SLOT_O_FIELD, NULL, 0);
3987 do_gettimeofday(&wakeup->vb.ts);
3988 wakeup->vb.field_count = btv->field_count;
3989 wakeup->vb.state = VIDEOBUF_DONE;
3990 wake_up(&wakeup->vb.done);
3991 spin_unlock(&btv->s_lock);
3994 static inline int is_active(struct btcx_riscmem *risc, u32 rc)
3998 if (rc > risc->dma + risc->size)
4004 bttv_irq_switch_video(struct bttv *btv)
4006 struct bttv_buffer_set new;
4007 struct bttv_buffer_set old;
4010 spin_lock(&btv->s_lock);
4012 /* new buffer set */
4013 bttv_irq_next_video(btv, &new);
4014 rc = btread(BT848_RISC_COUNT);
4015 if ((btv->curr.top && is_active(&btv->curr.top->top, rc)) ||
4016 (btv->curr.bottom && is_active(&btv->curr.bottom->bottom, rc))) {
4019 bttv_irq_debug_low_latency(btv, rc);
4020 spin_unlock(&btv->s_lock);
4027 btv->loop_irq &= ~1;
4028 bttv_buffer_activate_video(btv, &new);
4029 bttv_set_dma(btv, 0);
4032 if (UNSET != btv->new_input) {
4033 video_mux(btv,btv->new_input);
4034 btv->new_input = UNSET;
4037 /* wake up finished buffers */
4038 bttv_irq_wakeup_video(btv, &old, &new, VIDEOBUF_DONE);
4039 spin_unlock(&btv->s_lock);
4043 bttv_irq_switch_vbi(struct bttv *btv)
4045 struct bttv_buffer *new = NULL;
4046 struct bttv_buffer *old;
4049 spin_lock(&btv->s_lock);
4051 if (!list_empty(&btv->vcapture))
4052 new = list_entry(btv->vcapture.next, struct bttv_buffer, vb.queue);
4055 rc = btread(BT848_RISC_COUNT);
4056 if (NULL != old && (is_active(&old->top, rc) ||
4057 is_active(&old->bottom, rc))) {
4060 bttv_irq_debug_low_latency(btv, rc);
4061 spin_unlock(&btv->s_lock);
4067 btv->loop_irq &= ~4;
4068 bttv_buffer_activate_vbi(btv, new);
4069 bttv_set_dma(btv, 0);
4071 bttv_irq_wakeup_vbi(btv, old, VIDEOBUF_DONE);
4072 spin_unlock(&btv->s_lock);
4075 static irqreturn_t bttv_irq(int irq, void *dev_id)
4083 btv=(struct bttv *)dev_id;
4085 if (btv->custom_irq)
4086 handled = btv->custom_irq(btv);
4090 /* get/clear interrupt status bits */
4091 stat=btread(BT848_INT_STAT);
4092 astat=stat&btread(BT848_INT_MASK);
4096 btwrite(stat,BT848_INT_STAT);
4098 /* get device status bits */
4099 dstat=btread(BT848_DSTATUS);
4102 printk(KERN_DEBUG "bttv%d: irq loop=%d fc=%d "
4103 "riscs=%x, riscc=%08x, ",
4104 btv->c.nr, count, btv->field_count,
4105 stat>>28, btread(BT848_RISC_COUNT));
4106 bttv_print_irqbits(stat,astat);
4107 if (stat & BT848_INT_HLOCK)
4108 printk(" HLOC => %s", (dstat & BT848_DSTATUS_HLOC)
4110 if (stat & BT848_INT_VPRES)
4111 printk(" PRES => %s", (dstat & BT848_DSTATUS_PRES)
4113 if (stat & BT848_INT_FMTCHG)
4114 printk(" NUML => %s", (dstat & BT848_DSTATUS_NUML)
4119 if (astat&BT848_INT_VSYNC)
4122 if ((astat & BT848_INT_GPINT) && btv->remote) {
4123 wake_up(&btv->gpioq);
4124 bttv_input_irq(btv);
4127 if (astat & BT848_INT_I2CDONE) {
4128 btv->i2c_done = stat;
4129 wake_up(&btv->i2c_queue);
4132 if ((astat & BT848_INT_RISCI) && (stat & (4<<28)))
4133 bttv_irq_switch_vbi(btv);
4135 if ((astat & BT848_INT_RISCI) && (stat & (2<<28)))
4136 bttv_irq_wakeup_top(btv);
4138 if ((astat & BT848_INT_RISCI) && (stat & (1<<28)))
4139 bttv_irq_switch_video(btv);
4141 if ((astat & BT848_INT_HLOCK) && btv->opt_automute)
4142 audio_mute(btv, btv->mute); /* trigger automute */
4144 if (astat & (BT848_INT_SCERR|BT848_INT_OCERR)) {
4145 printk(KERN_INFO "bttv%d: %s%s @ %08x,",btv->c.nr,
4146 (astat & BT848_INT_SCERR) ? "SCERR" : "",
4147 (astat & BT848_INT_OCERR) ? "OCERR" : "",
4148 btread(BT848_RISC_COUNT));
4149 bttv_print_irqbits(stat,astat);
4152 bttv_print_riscaddr(btv);
4154 if (fdsr && astat & BT848_INT_FDSR) {
4155 printk(KERN_INFO "bttv%d: FDSR @ %08x\n",
4156 btv->c.nr,btread(BT848_RISC_COUNT));
4158 bttv_print_riscaddr(btv);
4164 if (count > 8 || !(astat & BT848_INT_GPINT)) {
4165 btwrite(0, BT848_INT_MASK);
4168 "bttv%d: IRQ lockup, cleared int mask [", btv->c.nr);
4171 "bttv%d: IRQ lockup, clearing GPINT from int mask [", btv->c.nr);
4173 btwrite(btread(BT848_INT_MASK) & (-1 ^ BT848_INT_GPINT),
4177 bttv_print_irqbits(stat,astat);
4185 return IRQ_RETVAL(handled);
4189 /* ----------------------------------------------------------------------- */
4190 /* initialitation */
4192 static struct video_device *vdev_init(struct bttv *btv,
4193 const struct video_device *template,
4194 const char *type_name)
4196 struct video_device *vfd;
4198 vfd = video_device_alloc();
4203 vfd->parent = &btv->c.pci->dev;
4204 vfd->release = video_device_release;
4205 vfd->debug = bttv_debug;
4206 snprintf(vfd->name, sizeof(vfd->name), "BT%d%s %s (%s)",
4207 btv->id, (btv->id==848 && btv->revision==0x12) ? "A" : "",
4208 type_name, bttv_tvcards[btv->c.type].name);
4212 static void bttv_unregister_video(struct bttv *btv)
4214 if (btv->video_dev) {
4215 if (-1 != btv->video_dev->minor)
4216 video_unregister_device(btv->video_dev);
4218 video_device_release(btv->video_dev);
4219 btv->video_dev = NULL;
4222 if (-1 != btv->vbi_dev->minor)
4223 video_unregister_device(btv->vbi_dev);
4225 video_device_release(btv->vbi_dev);
4226 btv->vbi_dev = NULL;
4228 if (btv->radio_dev) {
4229 if (-1 != btv->radio_dev->minor)
4230 video_unregister_device(btv->radio_dev);
4232 video_device_release(btv->radio_dev);
4233 btv->radio_dev = NULL;
4237 /* register video4linux devices */
4238 static int __devinit bttv_register_video(struct bttv *btv)
4241 printk("bttv: Overlay support disabled.\n");
4244 btv->video_dev = vdev_init(btv, &bttv_video_template, "video");
4246 if (NULL == btv->video_dev)
4248 if (video_register_device(btv->video_dev, VFL_TYPE_GRABBER,
4249 video_nr[btv->c.nr]) < 0)
4251 printk(KERN_INFO "bttv%d: registered device video%d\n",
4252 btv->c.nr, btv->video_dev->num);
4253 if (device_create_file(&btv->video_dev->dev,
4254 &dev_attr_card)<0) {
4255 printk(KERN_ERR "bttv%d: device_create_file 'card' "
4256 "failed\n", btv->c.nr);
4261 btv->vbi_dev = vdev_init(btv, &bttv_video_template, "vbi");
4263 if (NULL == btv->vbi_dev)
4265 if (video_register_device(btv->vbi_dev, VFL_TYPE_VBI,
4266 vbi_nr[btv->c.nr]) < 0)
4268 printk(KERN_INFO "bttv%d: registered device vbi%d\n",
4269 btv->c.nr, btv->vbi_dev->num);
4271 if (!btv->has_radio)
4274 btv->radio_dev = vdev_init(btv, &radio_template, "radio");
4275 if (NULL == btv->radio_dev)
4277 if (video_register_device(btv->radio_dev, VFL_TYPE_RADIO,
4278 radio_nr[btv->c.nr]) < 0)
4280 printk(KERN_INFO "bttv%d: registered device radio%d\n",
4281 btv->c.nr, btv->radio_dev->num);
4287 bttv_unregister_video(btv);
4292 /* on OpenFirmware machines (PowerMac at least), PCI memory cycle */
4293 /* response on cards with no firmware is not enabled by OF */
4294 static void pci_set_command(struct pci_dev *dev)
4296 #if defined(__powerpc__)
4299 pci_read_config_dword(dev, PCI_COMMAND, &cmd);
4300 cmd = (cmd | PCI_COMMAND_MEMORY );
4301 pci_write_config_dword(dev, PCI_COMMAND, cmd);
4305 static int __devinit bttv_probe(struct pci_dev *dev,
4306 const struct pci_device_id *pci_id)
4312 if (bttv_num == BTTV_MAX)
4314 printk(KERN_INFO "bttv: Bt8xx card found (%d).\n", bttv_num);
4315 btv=&bttvs[bttv_num];
4316 memset(btv,0,sizeof(*btv));
4317 btv->c.nr = bttv_num;
4318 sprintf(btv->c.name,"bttv%d",btv->c.nr);
4320 /* initialize structs / fill in defaults */
4321 mutex_init(&btv->lock);
4322 spin_lock_init(&btv->s_lock);
4323 spin_lock_init(&btv->gpio_lock);
4324 init_waitqueue_head(&btv->gpioq);
4325 init_waitqueue_head(&btv->i2c_queue);
4326 INIT_LIST_HEAD(&btv->c.subs);
4327 INIT_LIST_HEAD(&btv->capture);
4328 INIT_LIST_HEAD(&btv->vcapture);
4329 v4l2_prio_init(&btv->prio);
4331 init_timer(&btv->timeout);
4332 btv->timeout.function = bttv_irq_timeout;
4333 btv->timeout.data = (unsigned long)btv;
4336 btv->tuner_type = UNSET;
4337 btv->new_input = UNSET;
4338 btv->has_radio=radio[btv->c.nr];
4340 /* pci stuff (init, get irq/mmio, ... */
4342 btv->id = dev->device;
4343 if (pci_enable_device(dev)) {
4344 printk(KERN_WARNING "bttv%d: Can't enable device.\n",
4348 if (pci_set_dma_mask(dev, DMA_32BIT_MASK)) {
4349 printk(KERN_WARNING "bttv%d: No suitable DMA available.\n",
4353 if (!request_mem_region(pci_resource_start(dev,0),
4354 pci_resource_len(dev,0),
4356 printk(KERN_WARNING "bttv%d: can't request iomem (0x%llx).\n",
4358 (unsigned long long)pci_resource_start(dev,0));
4361 pci_set_master(dev);
4362 pci_set_command(dev);
4363 pci_set_drvdata(dev,btv);
4365 pci_read_config_byte(dev, PCI_CLASS_REVISION, &btv->revision);
4366 pci_read_config_byte(dev, PCI_LATENCY_TIMER, &lat);
4367 printk(KERN_INFO "bttv%d: Bt%d (rev %d) at %s, ",
4368 bttv_num,btv->id, btv->revision, pci_name(dev));
4369 printk("irq: %d, latency: %d, mmio: 0x%llx\n",
4370 btv->c.pci->irq, lat,
4371 (unsigned long long)pci_resource_start(dev,0));
4374 btv->bt848_mmio = ioremap(pci_resource_start(dev, 0), 0x1000);
4375 if (NULL == btv->bt848_mmio) {
4376 printk("bttv%d: ioremap() failed\n", btv->c.nr);
4384 /* disable irqs, register irq handler */
4385 btwrite(0, BT848_INT_MASK);
4386 result = request_irq(btv->c.pci->irq, bttv_irq,
4387 IRQF_SHARED | IRQF_DISABLED,btv->c.name,(void *)btv);
4389 printk(KERN_ERR "bttv%d: can't get IRQ %d\n",
4390 bttv_num,btv->c.pci->irq);
4394 if (0 != bttv_handle_chipset(btv)) {
4399 /* init options from insmod args */
4400 btv->opt_combfilter = combfilter;
4401 btv->opt_lumafilter = lumafilter;
4402 btv->opt_automute = automute;
4403 btv->opt_chroma_agc = chroma_agc;
4404 btv->opt_adc_crush = adc_crush;
4405 btv->opt_vcr_hack = vcr_hack;
4406 btv->opt_whitecrush_upper = whitecrush_upper;
4407 btv->opt_whitecrush_lower = whitecrush_lower;
4408 btv->opt_uv_ratio = uv_ratio;
4409 btv->opt_full_luma_range = full_luma_range;
4410 btv->opt_coring = coring;
4412 /* fill struct bttv with some useful defaults */
4413 btv->init.btv = btv;
4414 btv->init.ov.w.width = 320;
4415 btv->init.ov.w.height = 240;
4416 btv->init.fmt = format_by_fourcc(V4L2_PIX_FMT_BGR24);
4417 btv->init.width = 320;
4418 btv->init.height = 240;
4421 /* initialize hardware */
4423 bttv_gpio_tracking(btv,"pre-init");
4425 bttv_risc_init_main(btv);
4429 btwrite(0x00, BT848_GPIO_REG_INP);
4430 btwrite(0x00, BT848_GPIO_OUT_EN);
4432 bttv_gpio_tracking(btv,"init");
4434 /* needs to be done before i2c is registered */
4435 bttv_init_card1(btv);
4437 /* register i2c + gpio */
4440 /* some card-specific stuff (needs working i2c) */
4441 bttv_init_card2(btv);
4444 /* register video4linux + input */
4445 if (!bttv_tvcards[btv->c.type].no_video) {
4446 bttv_register_video(btv);
4447 bt848_bright(btv,32768);
4448 bt848_contrast(btv,32768);
4449 bt848_hue(btv,32768);
4450 bt848_sat(btv,32768);
4452 set_input(btv, 0, btv->tvnorm);
4453 bttv_crop_reset(&btv->crop[0], btv->tvnorm);
4454 btv->crop[1] = btv->crop[0]; /* current = default */
4455 disclaim_vbi_lines(btv);
4456 disclaim_video_lines(btv);
4459 /* add subdevices and autoload dvb-bt8xx if needed */
4460 if (bttv_tvcards[btv->c.type].has_dvb) {
4461 bttv_sub_add_device(&btv->c, "dvb");
4462 request_modules(btv);
4465 bttv_input_init(btv);
4467 /* everything is fine */
4472 free_irq(btv->c.pci->irq,btv);
4475 if (btv->bt848_mmio)
4476 iounmap(btv->bt848_mmio);
4477 release_mem_region(pci_resource_start(btv->c.pci,0),
4478 pci_resource_len(btv->c.pci,0));
4479 pci_set_drvdata(dev,NULL);
4483 static void __devexit bttv_remove(struct pci_dev *pci_dev)
4485 struct bttv *btv = pci_get_drvdata(pci_dev);
4488 printk("bttv%d: unloading\n",btv->c.nr);
4490 /* shutdown everything (DMA+IRQs) */
4491 btand(~15, BT848_GPIO_DMA_CTL);
4492 btwrite(0, BT848_INT_MASK);
4493 btwrite(~0x0, BT848_INT_STAT);
4494 btwrite(0x0, BT848_GPIO_OUT_EN);
4496 bttv_gpio_tracking(btv,"cleanup");
4498 /* tell gpio modules we are leaving ... */
4500 wake_up(&btv->gpioq);
4501 bttv_input_fini(btv);
4502 bttv_sub_del_devices(&btv->c);
4504 /* unregister i2c_bus + input */
4507 /* unregister video4linux */
4508 bttv_unregister_video(btv);
4510 /* free allocated memory */
4511 btcx_riscmem_free(btv->c.pci,&btv->main);
4513 /* free ressources */
4514 free_irq(btv->c.pci->irq,btv);
4515 iounmap(btv->bt848_mmio);
4516 release_mem_region(pci_resource_start(btv->c.pci,0),
4517 pci_resource_len(btv->c.pci,0));
4519 pci_set_drvdata(pci_dev, NULL);
4524 static int bttv_suspend(struct pci_dev *pci_dev, pm_message_t state)
4526 struct bttv *btv = pci_get_drvdata(pci_dev);
4527 struct bttv_buffer_set idle;
4528 unsigned long flags;
4530 dprintk("bttv%d: suspend %d\n", btv->c.nr, state.event);
4532 /* stop dma + irqs */
4533 spin_lock_irqsave(&btv->s_lock,flags);
4534 memset(&idle, 0, sizeof(idle));
4535 btv->state.video = btv->curr;
4536 btv->state.vbi = btv->cvbi;
4537 btv->state.loop_irq = btv->loop_irq;
4540 bttv_buffer_activate_video(btv, &idle);
4541 bttv_buffer_activate_vbi(btv, NULL);
4542 bttv_set_dma(btv, 0);
4543 btwrite(0, BT848_INT_MASK);
4544 spin_unlock_irqrestore(&btv->s_lock,flags);
4546 /* save bt878 state */
4547 btv->state.gpio_enable = btread(BT848_GPIO_OUT_EN);
4548 btv->state.gpio_data = gpio_read();
4550 /* save pci state */
4551 pci_save_state(pci_dev);
4552 if (0 != pci_set_power_state(pci_dev, pci_choose_state(pci_dev, state))) {
4553 pci_disable_device(pci_dev);
4554 btv->state.disabled = 1;
4559 static int bttv_resume(struct pci_dev *pci_dev)
4561 struct bttv *btv = pci_get_drvdata(pci_dev);
4562 unsigned long flags;
4565 dprintk("bttv%d: resume\n", btv->c.nr);
4567 /* restore pci state */
4568 if (btv->state.disabled) {
4569 err=pci_enable_device(pci_dev);
4571 printk(KERN_WARNING "bttv%d: Can't enable device.\n",
4575 btv->state.disabled = 0;
4577 err=pci_set_power_state(pci_dev, PCI_D0);
4579 pci_disable_device(pci_dev);
4580 printk(KERN_WARNING "bttv%d: Can't enable device.\n",
4582 btv->state.disabled = 1;
4586 pci_restore_state(pci_dev);
4588 /* restore bt878 state */
4589 bttv_reinit_bt848(btv);
4590 gpio_inout(0xffffff, btv->state.gpio_enable);
4591 gpio_write(btv->state.gpio_data);
4594 spin_lock_irqsave(&btv->s_lock,flags);
4595 btv->curr = btv->state.video;
4596 btv->cvbi = btv->state.vbi;
4597 btv->loop_irq = btv->state.loop_irq;
4598 bttv_buffer_activate_video(btv, &btv->curr);
4599 bttv_buffer_activate_vbi(btv, btv->cvbi);
4600 bttv_set_dma(btv, 0);
4601 spin_unlock_irqrestore(&btv->s_lock,flags);
4606 static struct pci_device_id bttv_pci_tbl[] = {
4607 {PCI_VENDOR_ID_BROOKTREE, PCI_DEVICE_ID_BT848,
4608 PCI_ANY_ID, PCI_ANY_ID, 0, 0, 0},
4609 {PCI_VENDOR_ID_BROOKTREE, PCI_DEVICE_ID_BT849,
4610 PCI_ANY_ID, PCI_ANY_ID, 0, 0, 0},
4611 {PCI_VENDOR_ID_BROOKTREE, PCI_DEVICE_ID_BT878,
4612 PCI_ANY_ID, PCI_ANY_ID, 0, 0, 0},
4613 {PCI_VENDOR_ID_BROOKTREE, PCI_DEVICE_ID_BT879,
4614 PCI_ANY_ID, PCI_ANY_ID, 0, 0, 0},
4618 MODULE_DEVICE_TABLE(pci, bttv_pci_tbl);
4620 static struct pci_driver bttv_pci_driver = {
4622 .id_table = bttv_pci_tbl,
4623 .probe = bttv_probe,
4624 .remove = __devexit_p(bttv_remove),
4626 .suspend = bttv_suspend,
4627 .resume = bttv_resume,
4631 static int __init bttv_init_module(void)
4637 printk(KERN_INFO "bttv: driver version %d.%d.%d loaded\n",
4638 (BTTV_VERSION_CODE >> 16) & 0xff,
4639 (BTTV_VERSION_CODE >> 8) & 0xff,
4640 BTTV_VERSION_CODE & 0xff);
4642 printk(KERN_INFO "bttv: snapshot date %04d-%02d-%02d\n",
4643 SNAPSHOT/10000, (SNAPSHOT/100)%100, SNAPSHOT%100);
4645 if (gbuffers < 2 || gbuffers > VIDEO_MAX_FRAME)
4647 if (gbufsize < 0 || gbufsize > BTTV_MAX_FBUF)
4648 gbufsize = BTTV_MAX_FBUF;
4649 gbufsize = (gbufsize + PAGE_SIZE - 1) & PAGE_MASK;
4651 printk(KERN_INFO "bttv: using %d buffers with %dk (%d pages) each for capture\n",
4652 gbuffers, gbufsize >> 10, gbufsize >> PAGE_SHIFT);
4654 bttv_check_chipset();
4656 ret = bus_register(&bttv_sub_bus_type);
4658 printk(KERN_WARNING "bttv: bus_register error: %d\n", ret);
4661 ret = pci_register_driver(&bttv_pci_driver);
4663 bus_unregister(&bttv_sub_bus_type);
4668 static void __exit bttv_cleanup_module(void)
4670 pci_unregister_driver(&bttv_pci_driver);
4671 bus_unregister(&bttv_sub_bus_type);
4674 module_init(bttv_init_module);
4675 module_exit(bttv_cleanup_module);