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 #define pr_fmt(fmt) KBUILD_MODNAME ": " fmt
39 #include <linux/init.h>
40 #include <linux/module.h>
41 #include <linux/delay.h>
42 #include <linux/slab.h>
43 #include <linux/errno.h>
45 #include <linux/kernel.h>
46 #include <linux/sched.h>
47 #include <linux/interrupt.h>
48 #include <linux/kdev_t.h>
50 #include <media/v4l2-common.h>
51 #include <media/v4l2-ioctl.h>
52 #include <media/v4l2-event.h>
53 #include <media/tvaudio.h>
54 #include <media/msp3400.h>
56 #include <linux/dma-mapping.h>
59 #include <asm/byteorder.h>
61 #include <media/saa6588.h>
63 #define BTTV_VERSION "0.9.19"
65 unsigned int bttv_num; /* number of Bt848s in use */
66 struct bttv *bttvs[BTTV_MAX];
68 unsigned int bttv_debug;
69 unsigned int bttv_verbose = 1;
70 unsigned int bttv_gpio;
72 /* config variables */
74 static unsigned int bigendian=1;
76 static unsigned int bigendian;
78 static unsigned int radio[BTTV_MAX];
79 static unsigned int irq_debug;
80 static unsigned int gbuffers = 8;
81 static unsigned int gbufsize = 0x208000;
82 static unsigned int reset_crop = 1;
84 static int video_nr[BTTV_MAX] = { [0 ... (BTTV_MAX-1)] = -1 };
85 static int radio_nr[BTTV_MAX] = { [0 ... (BTTV_MAX-1)] = -1 };
86 static int vbi_nr[BTTV_MAX] = { [0 ... (BTTV_MAX-1)] = -1 };
87 static int debug_latency;
88 static int disable_ir;
90 static unsigned int fdsr;
93 static unsigned int combfilter;
94 static unsigned int lumafilter;
95 static unsigned int automute = 1;
96 static unsigned int chroma_agc;
97 static unsigned int agc_crush = 1;
98 static unsigned int whitecrush_upper = 0xCF;
99 static unsigned int whitecrush_lower = 0x7F;
100 static unsigned int vcr_hack;
101 static unsigned int irq_iswitch;
102 static unsigned int uv_ratio = 50;
103 static unsigned int full_luma_range;
104 static unsigned int coring;
106 /* API features (turn on/off stuff for testing) */
107 static unsigned int v4l2 = 1;
110 module_param(bttv_verbose, int, 0644);
111 module_param(bttv_gpio, int, 0644);
112 module_param(bttv_debug, int, 0644);
113 module_param(irq_debug, int, 0644);
114 module_param(debug_latency, int, 0644);
115 module_param(disable_ir, int, 0444);
117 module_param(fdsr, int, 0444);
118 module_param(gbuffers, int, 0444);
119 module_param(gbufsize, int, 0444);
120 module_param(reset_crop, int, 0444);
122 module_param(v4l2, int, 0644);
123 module_param(bigendian, int, 0644);
124 module_param(irq_iswitch, int, 0644);
125 module_param(combfilter, int, 0444);
126 module_param(lumafilter, int, 0444);
127 module_param(automute, int, 0444);
128 module_param(chroma_agc, int, 0444);
129 module_param(agc_crush, int, 0444);
130 module_param(whitecrush_upper, int, 0444);
131 module_param(whitecrush_lower, int, 0444);
132 module_param(vcr_hack, int, 0444);
133 module_param(uv_ratio, int, 0444);
134 module_param(full_luma_range, int, 0444);
135 module_param(coring, int, 0444);
137 module_param_array(radio, int, NULL, 0444);
138 module_param_array(video_nr, int, NULL, 0444);
139 module_param_array(radio_nr, int, NULL, 0444);
140 module_param_array(vbi_nr, int, NULL, 0444);
142 MODULE_PARM_DESC(radio, "The TV card supports radio, default is 0 (no)");
143 MODULE_PARM_DESC(bigendian, "byte order of the framebuffer, default is native endian");
144 MODULE_PARM_DESC(bttv_verbose, "verbose startup messages, default is 1 (yes)");
145 MODULE_PARM_DESC(bttv_gpio, "log gpio changes, default is 0 (no)");
146 MODULE_PARM_DESC(bttv_debug, "debug messages, default is 0 (no)");
147 MODULE_PARM_DESC(irq_debug, "irq handler debug messages, default is 0 (no)");
148 MODULE_PARM_DESC(disable_ir, "disable infrared remote support");
149 MODULE_PARM_DESC(gbuffers, "number of capture buffers. range 2-32, default 8");
150 MODULE_PARM_DESC(gbufsize, "size of the capture buffers, default is 0x208000");
151 MODULE_PARM_DESC(reset_crop, "reset cropping parameters at open(), default "
152 "is 1 (yes) for compatibility with older applications");
153 MODULE_PARM_DESC(automute, "mute audio on bad/missing video signal, default is 1 (yes)");
154 MODULE_PARM_DESC(chroma_agc, "enables the AGC of chroma signal, default is 0 (no)");
155 MODULE_PARM_DESC(agc_crush, "enables the luminance AGC crush, default is 1 (yes)");
156 MODULE_PARM_DESC(whitecrush_upper, "sets the white crush upper value, default is 207");
157 MODULE_PARM_DESC(whitecrush_lower, "sets the white crush lower value, default is 127");
158 MODULE_PARM_DESC(vcr_hack, "enables the VCR hack (improves synch on poor VCR tapes), default is 0 (no)");
159 MODULE_PARM_DESC(irq_iswitch, "switch inputs in irq handler");
160 MODULE_PARM_DESC(uv_ratio, "ratio between u and v gains, default is 50");
161 MODULE_PARM_DESC(full_luma_range, "use the full luma range, default is 0 (no)");
162 MODULE_PARM_DESC(coring, "set the luma coring level, default is 0 (no)");
163 MODULE_PARM_DESC(video_nr, "video device numbers");
164 MODULE_PARM_DESC(vbi_nr, "vbi device numbers");
165 MODULE_PARM_DESC(radio_nr, "radio device numbers");
167 MODULE_DESCRIPTION("bttv - v4l/v4l2 driver module for bt848/878 based cards");
168 MODULE_AUTHOR("Ralph Metzler & Marcus Metzler & Gerd Knorr");
169 MODULE_LICENSE("GPL");
170 MODULE_VERSION(BTTV_VERSION);
172 #define V4L2_CID_PRIVATE_COMBFILTER (V4L2_CID_USER_BTTV_BASE + 0)
173 #define V4L2_CID_PRIVATE_AUTOMUTE (V4L2_CID_USER_BTTV_BASE + 1)
174 #define V4L2_CID_PRIVATE_LUMAFILTER (V4L2_CID_USER_BTTV_BASE + 2)
175 #define V4L2_CID_PRIVATE_AGC_CRUSH (V4L2_CID_USER_BTTV_BASE + 3)
176 #define V4L2_CID_PRIVATE_VCR_HACK (V4L2_CID_USER_BTTV_BASE + 4)
177 #define V4L2_CID_PRIVATE_WHITECRUSH_LOWER (V4L2_CID_USER_BTTV_BASE + 5)
178 #define V4L2_CID_PRIVATE_WHITECRUSH_UPPER (V4L2_CID_USER_BTTV_BASE + 6)
179 #define V4L2_CID_PRIVATE_UV_RATIO (V4L2_CID_USER_BTTV_BASE + 7)
180 #define V4L2_CID_PRIVATE_FULL_LUMA_RANGE (V4L2_CID_USER_BTTV_BASE + 8)
181 #define V4L2_CID_PRIVATE_CORING (V4L2_CID_USER_BTTV_BASE + 9)
183 /* ----------------------------------------------------------------------- */
186 static ssize_t show_card(struct device *cd,
187 struct device_attribute *attr, char *buf)
189 struct video_device *vfd = container_of(cd, struct video_device, dev);
190 struct bttv *btv = video_get_drvdata(vfd);
191 return sprintf(buf, "%d\n", btv ? btv->c.type : UNSET);
193 static DEVICE_ATTR(card, S_IRUGO, show_card, NULL);
195 /* ----------------------------------------------------------------------- */
196 /* dvb auto-load setup */
197 #if defined(CONFIG_MODULES) && defined(MODULE)
198 static void request_module_async(struct work_struct *work)
200 request_module("dvb-bt8xx");
203 static void request_modules(struct bttv *dev)
205 INIT_WORK(&dev->request_module_wk, request_module_async);
206 schedule_work(&dev->request_module_wk);
209 static void flush_request_modules(struct bttv *dev)
211 flush_work(&dev->request_module_wk);
214 #define request_modules(dev)
215 #define flush_request_modules(dev) do {} while(0)
216 #endif /* CONFIG_MODULES */
219 /* ----------------------------------------------------------------------- */
222 /* special timing tables from conexant... */
223 static u8 SRAM_Table[][60] =
225 /* PAL digital input over GPIO[7:0] */
227 45, // 45 bytes following
228 0x36,0x11,0x01,0x00,0x90,0x02,0x05,0x10,0x04,0x16,
229 0x12,0x05,0x11,0x00,0x04,0x12,0xC0,0x00,0x31,0x00,
230 0x06,0x51,0x08,0x03,0x89,0x08,0x07,0xC0,0x44,0x00,
231 0x81,0x01,0x01,0xA9,0x0D,0x02,0x02,0x50,0x03,0x37,
232 0x37,0x00,0xAF,0x21,0x00
234 /* NTSC digital input over GPIO[7:0] */
236 51, // 51 bytes following
237 0x0C,0xC0,0x00,0x00,0x90,0x02,0x03,0x10,0x03,0x06,
238 0x10,0x04,0x12,0x12,0x05,0x02,0x13,0x04,0x19,0x00,
239 0x04,0x39,0x00,0x06,0x59,0x08,0x03,0x83,0x08,0x07,
240 0x03,0x50,0x00,0xC0,0x40,0x00,0x86,0x01,0x01,0xA6,
241 0x0D,0x02,0x03,0x11,0x01,0x05,0x37,0x00,0xAC,0x21,
244 // TGB_NTSC392 // quartzsight
245 // This table has been modified to be used for Fusion Rev D
247 0x2A, // size of table = 42
248 0x06, 0x08, 0x04, 0x0a, 0xc0, 0x00, 0x18, 0x08, 0x03, 0x24,
249 0x08, 0x07, 0x02, 0x90, 0x02, 0x08, 0x10, 0x04, 0x0c, 0x10,
250 0x05, 0x2c, 0x11, 0x04, 0x55, 0x48, 0x00, 0x05, 0x50, 0x00,
251 0xbf, 0x0c, 0x02, 0x2f, 0x3d, 0x00, 0x2f, 0x3f, 0x00, 0xc3,
256 /* minhdelayx1 first video pixel we can capture on a line and
257 hdelayx1 start of active video, both relative to rising edge of
258 /HRESET pulse (0H) in 1 / fCLKx1.
259 swidth width of active video and
260 totalwidth total line width, both in 1 / fCLKx1.
261 sqwidth total line width in square pixels.
262 vdelay start of active video in 2 * field lines relative to
263 trailing edge of /VRESET pulse (VDELAY register).
264 sheight height of active video in 2 * field lines.
265 extraheight Added to sheight for cropcap.bounds.height only
266 videostart0 ITU-R frame line number of the line corresponding
267 to vdelay in the first field. */
268 #define CROPCAP(minhdelayx1, hdelayx1, swidth, totalwidth, sqwidth, \
269 vdelay, sheight, extraheight, videostart0) \
270 .cropcap.bounds.left = minhdelayx1, \
271 /* * 2 because vertically we count field lines times two, */ \
272 /* e.g. 23 * 2 to 23 * 2 + 576 in PAL-BGHI defrect. */ \
273 .cropcap.bounds.top = (videostart0) * 2 - (vdelay) + MIN_VDELAY, \
274 /* 4 is a safety margin at the end of the line. */ \
275 .cropcap.bounds.width = (totalwidth) - (minhdelayx1) - 4, \
276 .cropcap.bounds.height = (sheight) + (extraheight) + (vdelay) - \
278 .cropcap.defrect.left = hdelayx1, \
279 .cropcap.defrect.top = (videostart0) * 2, \
280 .cropcap.defrect.width = swidth, \
281 .cropcap.defrect.height = sheight, \
282 .cropcap.pixelaspect.numerator = totalwidth, \
283 .cropcap.pixelaspect.denominator = sqwidth,
285 const struct bttv_tvnorm bttv_tvnorms[] = {
287 /* max. active video is actually 922, but 924 is divisible by 4 and 3! */
288 /* actually, max active PAL with HSCALE=0 is 948, NTSC is 768 - nil */
290 .v4l2_id = V4L2_STD_PAL,
298 .iform = (BT848_IFORM_PAL_BDGHI|BT848_IFORM_XT1),
299 .scaledtwidth = 1135,
303 .vbipack = 255, /* min (2048 / 4, 0x1ff) & 0xff */
305 /* ITU-R frame line number of the first VBI line
306 we can capture, of the first and second field.
307 The last line is determined by cropcap.bounds. */
308 .vbistart = { 7, 320 },
309 CROPCAP(/* minhdelayx1 */ 68,
311 /* Should be (768 * 1135 + 944 / 2) / 944.
312 cropcap.defrect is used for image width
313 checks, so we keep the old value 924. */
315 /* totalwidth */ 1135,
319 /* bt878 (and bt848?) can capture another
320 line below active video. */
322 /* videostart0 */ 23)
324 .v4l2_id = V4L2_STD_NTSC_M | V4L2_STD_NTSC_M_KR,
332 .iform = (BT848_IFORM_NTSC|BT848_IFORM_XT0),
337 .vbipack = 144, /* min (1600 / 4, 0x1ff) & 0xff */
339 .vbistart = { 10, 273 },
340 CROPCAP(/* minhdelayx1 */ 68,
342 /* Should be (640 * 910 + 780 / 2) / 780? */
344 /* totalwidth */ 910,
349 /* videostart0 */ 23)
351 .v4l2_id = V4L2_STD_SECAM,
359 .iform = (BT848_IFORM_SECAM|BT848_IFORM_XT1),
360 .scaledtwidth = 1135,
365 .sram = 0, /* like PAL, correct? */
366 .vbistart = { 7, 320 },
367 CROPCAP(/* minhdelayx1 */ 68,
370 /* totalwidth */ 1135,
375 /* videostart0 */ 23)
377 .v4l2_id = V4L2_STD_PAL_Nc,
385 .iform = (BT848_IFORM_PAL_NC|BT848_IFORM_XT0),
392 .vbistart = { 7, 320 },
393 CROPCAP(/* minhdelayx1 */ 68,
395 /* swidth */ (640 * 910 + 780 / 2) / 780,
396 /* totalwidth */ 910,
401 /* videostart0 */ 23)
403 .v4l2_id = V4L2_STD_PAL_M,
411 .iform = (BT848_IFORM_PAL_M|BT848_IFORM_XT0),
418 .vbistart = { 10, 273 },
419 CROPCAP(/* minhdelayx1 */ 68,
421 /* swidth */ (640 * 910 + 780 / 2) / 780,
422 /* totalwidth */ 910,
427 /* videostart0 */ 23)
429 .v4l2_id = V4L2_STD_PAL_N,
437 .iform = (BT848_IFORM_PAL_N|BT848_IFORM_XT1),
444 .vbistart = { 7, 320 },
445 CROPCAP(/* minhdelayx1 */ 68,
447 /* swidth */ (768 * 1135 + 944 / 2) / 944,
448 /* totalwidth */ 1135,
453 /* videostart0 */ 23)
455 .v4l2_id = V4L2_STD_NTSC_M_JP,
463 .iform = (BT848_IFORM_NTSC_J|BT848_IFORM_XT0),
470 .vbistart = { 10, 273 },
471 CROPCAP(/* minhdelayx1 */ 68,
473 /* swidth */ (640 * 910 + 780 / 2) / 780,
474 /* totalwidth */ 910,
479 /* videostart0 */ 23)
481 /* that one hopefully works with the strange timing
482 * which video recorders produce when playing a NTSC
483 * tape on a PAL TV ... */
484 .v4l2_id = V4L2_STD_PAL_60,
492 .iform = (BT848_IFORM_PAL_BDGHI|BT848_IFORM_XT1),
493 .scaledtwidth = 1135,
500 .vbistart = { 10, 273 },
501 CROPCAP(/* minhdelayx1 */ 68,
504 /* totalwidth */ 1135,
509 /* videostart0 */ 23)
512 static const unsigned int BTTV_TVNORMS = ARRAY_SIZE(bttv_tvnorms);
514 /* ----------------------------------------------------------------------- */
516 packed pixel formats must come first */
517 static const struct bttv_format formats[] = {
519 .name = "8 bpp, gray",
520 .fourcc = V4L2_PIX_FMT_GREY,
521 .btformat = BT848_COLOR_FMT_Y8,
523 .flags = FORMAT_FLAGS_PACKED,
525 .name = "8 bpp, dithered color",
526 .fourcc = V4L2_PIX_FMT_HI240,
527 .btformat = BT848_COLOR_FMT_RGB8,
529 .flags = FORMAT_FLAGS_PACKED | FORMAT_FLAGS_DITHER,
531 .name = "15 bpp RGB, le",
532 .fourcc = V4L2_PIX_FMT_RGB555,
533 .btformat = BT848_COLOR_FMT_RGB15,
535 .flags = FORMAT_FLAGS_PACKED,
537 .name = "15 bpp RGB, be",
538 .fourcc = V4L2_PIX_FMT_RGB555X,
539 .btformat = BT848_COLOR_FMT_RGB15,
540 .btswap = 0x03, /* byteswap */
542 .flags = FORMAT_FLAGS_PACKED,
544 .name = "16 bpp RGB, le",
545 .fourcc = V4L2_PIX_FMT_RGB565,
546 .btformat = BT848_COLOR_FMT_RGB16,
548 .flags = FORMAT_FLAGS_PACKED,
550 .name = "16 bpp RGB, be",
551 .fourcc = V4L2_PIX_FMT_RGB565X,
552 .btformat = BT848_COLOR_FMT_RGB16,
553 .btswap = 0x03, /* byteswap */
555 .flags = FORMAT_FLAGS_PACKED,
557 .name = "24 bpp RGB, le",
558 .fourcc = V4L2_PIX_FMT_BGR24,
559 .btformat = BT848_COLOR_FMT_RGB24,
561 .flags = FORMAT_FLAGS_PACKED,
563 .name = "32 bpp RGB, le",
564 .fourcc = V4L2_PIX_FMT_BGR32,
565 .btformat = BT848_COLOR_FMT_RGB32,
567 .flags = FORMAT_FLAGS_PACKED,
569 .name = "32 bpp RGB, be",
570 .fourcc = V4L2_PIX_FMT_RGB32,
571 .btformat = BT848_COLOR_FMT_RGB32,
572 .btswap = 0x0f, /* byte+word swap */
574 .flags = FORMAT_FLAGS_PACKED,
576 .name = "4:2:2, packed, YUYV",
577 .fourcc = V4L2_PIX_FMT_YUYV,
578 .btformat = BT848_COLOR_FMT_YUY2,
580 .flags = FORMAT_FLAGS_PACKED,
582 .name = "4:2:2, packed, UYVY",
583 .fourcc = V4L2_PIX_FMT_UYVY,
584 .btformat = BT848_COLOR_FMT_YUY2,
585 .btswap = 0x03, /* byteswap */
587 .flags = FORMAT_FLAGS_PACKED,
589 .name = "4:2:2, planar, Y-Cb-Cr",
590 .fourcc = V4L2_PIX_FMT_YUV422P,
591 .btformat = BT848_COLOR_FMT_YCrCb422,
593 .flags = FORMAT_FLAGS_PLANAR,
597 .name = "4:2:0, planar, Y-Cb-Cr",
598 .fourcc = V4L2_PIX_FMT_YUV420,
599 .btformat = BT848_COLOR_FMT_YCrCb422,
601 .flags = FORMAT_FLAGS_PLANAR,
605 .name = "4:2:0, planar, Y-Cr-Cb",
606 .fourcc = V4L2_PIX_FMT_YVU420,
607 .btformat = BT848_COLOR_FMT_YCrCb422,
609 .flags = FORMAT_FLAGS_PLANAR | FORMAT_FLAGS_CrCb,
613 .name = "4:1:1, planar, Y-Cb-Cr",
614 .fourcc = V4L2_PIX_FMT_YUV411P,
615 .btformat = BT848_COLOR_FMT_YCrCb411,
617 .flags = FORMAT_FLAGS_PLANAR,
621 .name = "4:1:0, planar, Y-Cb-Cr",
622 .fourcc = V4L2_PIX_FMT_YUV410,
623 .btformat = BT848_COLOR_FMT_YCrCb411,
625 .flags = FORMAT_FLAGS_PLANAR,
629 .name = "4:1:0, planar, Y-Cr-Cb",
630 .fourcc = V4L2_PIX_FMT_YVU410,
631 .btformat = BT848_COLOR_FMT_YCrCb411,
633 .flags = FORMAT_FLAGS_PLANAR | FORMAT_FLAGS_CrCb,
637 .name = "raw scanlines",
639 .btformat = BT848_COLOR_FMT_RAW,
641 .flags = FORMAT_FLAGS_RAW,
644 static const unsigned int FORMATS = ARRAY_SIZE(formats);
646 /* ----------------------------------------------------------------------- */
647 /* resource management */
650 RESOURCE_ allocated by freed by
652 VIDEO_READ bttv_read 1) bttv_read 2)
654 VIDEO_STREAM VIDIOC_STREAMON VIDIOC_STREAMOFF
655 VIDIOC_QBUF 1) bttv_release
658 OVERLAY VIDIOCCAPTURE on VIDIOCCAPTURE off
659 VIDIOC_OVERLAY on VIDIOC_OVERLAY off
662 VBI VIDIOC_STREAMON VIDIOC_STREAMOFF
663 VIDIOC_QBUF 1) bttv_release
664 bttv_read, bttv_poll 1) 4)
666 1) The resource must be allocated when we enter buffer prepare functions
667 and remain allocated while buffers are in the DMA queue.
668 2) This is a single frame read.
669 3) VIDIOC_S_FBUF and VIDIOC_S_FMT (OVERLAY) still work when
670 RESOURCE_OVERLAY is allocated.
671 4) This is a continuous read, implies VIDIOC_STREAMON.
673 Note this driver permits video input and standard changes regardless if
674 resources are allocated.
677 #define VBI_RESOURCES (RESOURCE_VBI)
678 #define VIDEO_RESOURCES (RESOURCE_VIDEO_READ | \
679 RESOURCE_VIDEO_STREAM | \
683 int check_alloc_btres_lock(struct bttv *btv, struct bttv_fh *fh, int bit)
685 int xbits; /* mutual exclusive resources */
687 if (fh->resources & bit)
688 /* have it already allocated */
692 if (bit & (RESOURCE_VIDEO_READ | RESOURCE_VIDEO_STREAM))
693 xbits |= RESOURCE_VIDEO_READ | RESOURCE_VIDEO_STREAM;
696 if (btv->resources & xbits) {
697 /* no, someone else uses it */
701 if ((bit & VIDEO_RESOURCES)
702 && 0 == (btv->resources & VIDEO_RESOURCES)) {
703 /* Do crop - use current, don't - use default parameters. */
704 __s32 top = btv->crop[!!fh->do_crop].rect.top;
706 if (btv->vbi_end > top)
709 /* We cannot capture the same line as video and VBI data.
710 Claim scan lines crop[].rect.top to bottom. */
711 btv->crop_start = top;
712 } else if (bit & VBI_RESOURCES) {
713 __s32 end = fh->vbi_fmt.end;
715 if (end > btv->crop_start)
718 /* Claim scan lines above fh->vbi_fmt.end. */
722 /* it's free, grab it */
723 fh->resources |= bit;
724 btv->resources |= bit;
732 int check_btres(struct bttv_fh *fh, int bit)
734 return (fh->resources & bit);
738 int locked_btres(struct bttv *btv, int bit)
740 return (btv->resources & bit);
743 /* Call with btv->lock down. */
745 disclaim_vbi_lines(struct bttv *btv)
750 /* Call with btv->lock down. */
752 disclaim_video_lines(struct bttv *btv)
754 const struct bttv_tvnorm *tvnorm;
757 tvnorm = &bttv_tvnorms[btv->tvnorm];
758 btv->crop_start = tvnorm->cropcap.bounds.top
759 + tvnorm->cropcap.bounds.height;
761 /* VBI capturing ends at VDELAY, start of video capturing, no
762 matter how many lines the VBI RISC program expects. When video
763 capturing is off, it shall no longer "preempt" VBI capturing,
764 so we set VDELAY to maximum. */
765 crop = btread(BT848_E_CROP) | 0xc0;
766 btwrite(crop, BT848_E_CROP);
767 btwrite(0xfe, BT848_E_VDELAY_LO);
768 btwrite(crop, BT848_O_CROP);
769 btwrite(0xfe, BT848_O_VDELAY_LO);
773 void free_btres_lock(struct bttv *btv, struct bttv_fh *fh, int bits)
775 if ((fh->resources & bits) != bits) {
776 /* trying to free resources not allocated by us ... */
777 pr_err("BUG! (btres)\n");
779 fh->resources &= ~bits;
780 btv->resources &= ~bits;
782 bits = btv->resources;
784 if (0 == (bits & VIDEO_RESOURCES))
785 disclaim_video_lines(btv);
787 if (0 == (bits & VBI_RESOURCES))
788 disclaim_vbi_lines(btv);
791 /* ----------------------------------------------------------------------- */
792 /* If Bt848a or Bt849, use PLL for PAL/SECAM and crystal for NTSC */
794 /* Frequency = (F_input / PLL_X) * PLL_I.PLL_F/PLL_C
795 PLL_X = Reference pre-divider (0=1, 1=2)
796 PLL_C = Post divider (0=6, 1=4)
797 PLL_I = Integer input
798 PLL_F = Fractional input
800 F_input = 28.636363 MHz:
801 PAL (CLKx2 = 35.46895 MHz): PLL_X = 1, PLL_I = 0x0E, PLL_F = 0xDCF9, PLL_C = 0
804 static void set_pll_freq(struct bttv *btv, unsigned int fin, unsigned int fout)
806 unsigned char fl, fh, fi;
808 /* prevent overflows */
821 btwrite(fl, BT848_PLL_F_LO);
822 btwrite(fh, BT848_PLL_F_HI);
823 btwrite(fi|BT848_PLL_X, BT848_PLL_XCI);
826 static void set_pll(struct bttv *btv)
830 if (!btv->pll.pll_crystal)
833 if (btv->pll.pll_ofreq == btv->pll.pll_current) {
834 dprintk("%d: PLL: no change required\n", btv->c.nr);
838 if (btv->pll.pll_ifreq == btv->pll.pll_ofreq) {
840 if (btv->pll.pll_current == 0)
843 pr_info("%d: PLL can sleep, using XTAL (%d)\n",
844 btv->c.nr, btv->pll.pll_ifreq);
845 btwrite(0x00,BT848_TGCTRL);
846 btwrite(0x00,BT848_PLL_XCI);
847 btv->pll.pll_current = 0;
852 pr_info("%d: Setting PLL: %d => %d (needs up to 100ms)\n",
854 btv->pll.pll_ifreq, btv->pll.pll_ofreq);
855 set_pll_freq(btv, btv->pll.pll_ifreq, btv->pll.pll_ofreq);
857 for (i=0; i<10; i++) {
858 /* Let other people run while the PLL stabilizes */
861 if (btread(BT848_DSTATUS) & BT848_DSTATUS_PLOCK) {
862 btwrite(0,BT848_DSTATUS);
864 btwrite(0x08,BT848_TGCTRL);
865 btv->pll.pll_current = btv->pll.pll_ofreq;
867 pr_info("PLL set ok\n");
871 btv->pll.pll_current = -1;
873 pr_info("Setting PLL failed\n");
877 /* used to switch between the bt848's analog/digital video capture modes */
878 static void bt848A_set_timing(struct bttv *btv)
881 int table_idx = bttv_tvnorms[btv->tvnorm].sram;
882 int fsc = bttv_tvnorms[btv->tvnorm].Fsc;
884 if (btv->input == btv->dig) {
885 dprintk("%d: load digital timing table (table_idx=%d)\n",
886 btv->c.nr,table_idx);
888 /* timing change...reset timing generator address */
889 btwrite(0x00, BT848_TGCTRL);
890 btwrite(0x02, BT848_TGCTRL);
891 btwrite(0x00, BT848_TGCTRL);
893 len=SRAM_Table[table_idx][0];
894 for(i = 1; i <= len; i++)
895 btwrite(SRAM_Table[table_idx][i],BT848_TGLB);
896 btv->pll.pll_ofreq = 27000000;
899 btwrite(0x11, BT848_TGCTRL);
900 btwrite(0x41, BT848_DVSIF);
902 btv->pll.pll_ofreq = fsc;
904 btwrite(0x0, BT848_DVSIF);
908 /* ----------------------------------------------------------------------- */
910 static void bt848_bright(struct bttv *btv, int bright)
914 // printk("set bright: %d\n", bright); // DEBUG
915 btv->bright = bright;
917 /* We want -128 to 127 we get 0-65535 */
918 value = (bright >> 8) - 128;
919 btwrite(value & 0xff, BT848_BRIGHT);
922 static void bt848_hue(struct bttv *btv, int hue)
929 value = (hue >> 8) - 128;
930 btwrite(value & 0xff, BT848_HUE);
933 static void bt848_contrast(struct bttv *btv, int cont)
937 btv->contrast = cont;
941 hibit = (value >> 6) & 4;
942 btwrite(value & 0xff, BT848_CONTRAST_LO);
943 btaor(hibit, ~4, BT848_E_CONTROL);
944 btaor(hibit, ~4, BT848_O_CONTROL);
947 static void bt848_sat(struct bttv *btv, int color)
949 int val_u,val_v,hibits;
951 btv->saturation = color;
953 /* 0-511 for the color */
954 val_u = ((color * btv->opt_uv_ratio) / 50) >> 7;
955 val_v = (((color * (100 - btv->opt_uv_ratio) / 50) >>7)*180L)/254;
956 hibits = (val_u >> 7) & 2;
957 hibits |= (val_v >> 8) & 1;
958 btwrite(val_u & 0xff, BT848_SAT_U_LO);
959 btwrite(val_v & 0xff, BT848_SAT_V_LO);
960 btaor(hibits, ~3, BT848_E_CONTROL);
961 btaor(hibits, ~3, BT848_O_CONTROL);
964 /* ----------------------------------------------------------------------- */
967 video_mux(struct bttv *btv, unsigned int input)
971 if (input >= bttv_tvcards[btv->c.type].video_inputs)
974 /* needed by RemoteVideo MX */
975 mask2 = bttv_tvcards[btv->c.type].gpiomask2;
977 gpio_inout(mask2,mask2);
979 if (input == btv->svhs) {
980 btor(BT848_CONTROL_COMP, BT848_E_CONTROL);
981 btor(BT848_CONTROL_COMP, BT848_O_CONTROL);
983 btand(~BT848_CONTROL_COMP, BT848_E_CONTROL);
984 btand(~BT848_CONTROL_COMP, BT848_O_CONTROL);
986 mux = bttv_muxsel(btv, input);
987 btaor(mux<<5, ~(3<<5), BT848_IFORM);
988 dprintk("%d: video mux: input=%d mux=%d\n", btv->c.nr, input, mux);
990 /* card specific hook */
991 if(bttv_tvcards[btv->c.type].muxsel_hook)
992 bttv_tvcards[btv->c.type].muxsel_hook (btv, input);
996 static char *audio_modes[] = {
997 "audio: tuner", "audio: radio", "audio: extern",
998 "audio: intern", "audio: mute"
1002 audio_mux_gpio(struct bttv *btv, int input, int mute)
1004 int gpio_val, signal, mute_gpio;
1006 gpio_inout(bttv_tvcards[btv->c.type].gpiomask,
1007 bttv_tvcards[btv->c.type].gpiomask);
1008 signal = btread(BT848_DSTATUS) & BT848_DSTATUS_HLOC;
1011 mute_gpio = mute || (btv->opt_automute && (!signal || !btv->users)
1012 && !btv->has_radio_tuner);
1015 gpio_val = bttv_tvcards[btv->c.type].gpiomute;
1017 gpio_val = bttv_tvcards[btv->c.type].gpiomux[input];
1019 switch (btv->c.type) {
1020 case BTTV_BOARD_VOODOOTV_FM:
1021 case BTTV_BOARD_VOODOOTV_200:
1022 gpio_val = bttv_tda9880_setnorm(btv, gpio_val);
1026 gpio_bits(bttv_tvcards[btv->c.type].gpiomask, gpio_val);
1030 bttv_gpio_tracking(btv, audio_modes[mute_gpio ? 4 : input]);
1034 audio_mute(struct bttv *btv, int mute)
1036 struct v4l2_ctrl *ctrl;
1038 audio_mux_gpio(btv, btv->audio_input, mute);
1040 if (btv->sd_msp34xx) {
1041 ctrl = v4l2_ctrl_find(btv->sd_msp34xx->ctrl_handler, V4L2_CID_AUDIO_MUTE);
1043 v4l2_ctrl_s_ctrl(ctrl, mute);
1045 if (btv->sd_tvaudio) {
1046 ctrl = v4l2_ctrl_find(btv->sd_tvaudio->ctrl_handler, V4L2_CID_AUDIO_MUTE);
1048 v4l2_ctrl_s_ctrl(ctrl, mute);
1050 if (btv->sd_tda7432) {
1051 ctrl = v4l2_ctrl_find(btv->sd_tda7432->ctrl_handler, V4L2_CID_AUDIO_MUTE);
1053 v4l2_ctrl_s_ctrl(ctrl, mute);
1059 audio_input(struct bttv *btv, int input)
1061 audio_mux_gpio(btv, input, btv->mute);
1063 if (btv->sd_msp34xx) {
1066 /* Note: the inputs tuner/radio/extern/intern are translated
1067 to msp routings. This assumes common behavior for all msp3400
1068 based TV cards. When this assumption fails, then the
1069 specific MSP routing must be added to the card table.
1070 For now this is sufficient. */
1072 case TVAUDIO_INPUT_RADIO:
1073 /* Some boards need the msp do to the radio demod */
1074 if (btv->radio_uses_msp_demodulator) {
1075 in = MSP_INPUT_DEFAULT;
1078 in = MSP_INPUT(MSP_IN_SCART2, MSP_IN_TUNER1,
1079 MSP_DSP_IN_SCART, MSP_DSP_IN_SCART);
1081 case TVAUDIO_INPUT_EXTERN:
1082 in = MSP_INPUT(MSP_IN_SCART1, MSP_IN_TUNER1,
1083 MSP_DSP_IN_SCART, MSP_DSP_IN_SCART);
1085 case TVAUDIO_INPUT_INTERN:
1086 /* Yes, this is the same input as for RADIO. I doubt
1087 if this is ever used. The only board with an INTERN
1088 input is the BTTV_BOARD_AVERMEDIA98. I wonder how
1089 that was tested. My guess is that the whole INTERN
1090 input does not work. */
1091 in = MSP_INPUT(MSP_IN_SCART2, MSP_IN_TUNER1,
1092 MSP_DSP_IN_SCART, MSP_DSP_IN_SCART);
1094 case TVAUDIO_INPUT_TUNER:
1096 /* This is the only card that uses TUNER2, and afaik,
1097 is the only difference between the VOODOOTV_FM
1099 if (btv->c.type == BTTV_BOARD_VOODOOTV_200)
1100 in = MSP_INPUT(MSP_IN_SCART1, MSP_IN_TUNER2, \
1101 MSP_DSP_IN_TUNER, MSP_DSP_IN_TUNER);
1103 in = MSP_INPUT_DEFAULT;
1106 v4l2_subdev_call(btv->sd_msp34xx, audio, s_routing,
1107 in, MSP_OUTPUT_DEFAULT, 0);
1109 if (btv->sd_tvaudio) {
1110 v4l2_subdev_call(btv->sd_tvaudio, audio, s_routing,
1117 bttv_crop_calc_limits(struct bttv_crop *c)
1119 /* Scale factor min. 1:1, max. 16:1. Min. image size
1120 48 x 32. Scaled width must be a multiple of 4. */
1123 /* For bug compatibility with VIDIOCGCAP and image
1124 size checks in earlier driver versions. */
1125 c->min_scaled_width = 48;
1126 c->min_scaled_height = 32;
1128 c->min_scaled_width =
1129 (max_t(unsigned int, 48, c->rect.width >> 4) + 3) & ~3;
1130 c->min_scaled_height =
1131 max_t(unsigned int, 32, c->rect.height >> 4);
1134 c->max_scaled_width = c->rect.width & ~3;
1135 c->max_scaled_height = c->rect.height;
1139 bttv_crop_reset(struct bttv_crop *c, unsigned int norm)
1141 c->rect = bttv_tvnorms[norm].cropcap.defrect;
1142 bttv_crop_calc_limits(c);
1145 /* Call with btv->lock down. */
1147 set_tvnorm(struct bttv *btv, unsigned int norm)
1149 const struct bttv_tvnorm *tvnorm;
1152 BUG_ON(norm >= BTTV_TVNORMS);
1153 BUG_ON(btv->tvnorm >= BTTV_TVNORMS);
1155 tvnorm = &bttv_tvnorms[norm];
1157 if (memcmp(&bttv_tvnorms[btv->tvnorm].cropcap, &tvnorm->cropcap,
1158 sizeof (tvnorm->cropcap))) {
1159 bttv_crop_reset(&btv->crop[0], norm);
1160 btv->crop[1] = btv->crop[0]; /* current = default */
1162 if (0 == (btv->resources & VIDEO_RESOURCES)) {
1163 btv->crop_start = tvnorm->cropcap.bounds.top
1164 + tvnorm->cropcap.bounds.height;
1170 btwrite(tvnorm->adelay, BT848_ADELAY);
1171 btwrite(tvnorm->bdelay, BT848_BDELAY);
1172 btaor(tvnorm->iform,~(BT848_IFORM_NORM|BT848_IFORM_XTBOTH),
1174 btwrite(tvnorm->vbipack, BT848_VBI_PACK_SIZE);
1175 btwrite(1, BT848_VBI_PACK_DEL);
1176 bt848A_set_timing(btv);
1178 switch (btv->c.type) {
1179 case BTTV_BOARD_VOODOOTV_FM:
1180 case BTTV_BOARD_VOODOOTV_200:
1181 bttv_tda9880_setnorm(btv, gpio_read());
1184 id = tvnorm->v4l2_id;
1185 bttv_call_all(btv, video, s_std, id);
1190 /* Call with btv->lock down. */
1192 set_input(struct bttv *btv, unsigned int input, unsigned int norm)
1194 unsigned long flags;
1198 spin_lock_irqsave(&btv->s_lock,flags);
1199 if (btv->curr.frame_irq) {
1200 /* active capture -> delayed input switch */
1201 btv->new_input = input;
1203 video_mux(btv,input);
1205 spin_unlock_irqrestore(&btv->s_lock,flags);
1207 video_mux(btv,input);
1209 btv->audio_input = (btv->tuner_type != TUNER_ABSENT && input == 0) ?
1210 TVAUDIO_INPUT_TUNER : TVAUDIO_INPUT_EXTERN;
1211 audio_input(btv, btv->audio_input);
1212 set_tvnorm(btv, norm);
1215 static void init_irqreg(struct bttv *btv)
1218 btwrite(0xfffffUL, BT848_INT_STAT);
1220 if (bttv_tvcards[btv->c.type].no_video) {
1222 btwrite(BT848_INT_I2CDONE,
1226 btwrite((btv->triton1) |
1227 (btv->gpioirq ? BT848_INT_GPINT : 0) |
1229 (fdsr ? BT848_INT_FDSR : 0) |
1230 BT848_INT_RISCI | BT848_INT_OCERR |
1231 BT848_INT_FMTCHG|BT848_INT_HLOCK|
1237 static void init_bt848(struct bttv *btv)
1239 if (bttv_tvcards[btv->c.type].no_video) {
1240 /* very basic init only */
1245 btwrite(0x00, BT848_CAP_CTL);
1246 btwrite(BT848_COLOR_CTL_GAMMA, BT848_COLOR_CTL);
1247 btwrite(BT848_IFORM_XTAUTO | BT848_IFORM_AUTO, BT848_IFORM);
1249 /* set planar and packed mode trigger points and */
1250 /* set rising edge of inverted GPINTR pin as irq trigger */
1251 btwrite(BT848_GPIO_DMA_CTL_PKTP_32|
1252 BT848_GPIO_DMA_CTL_PLTP1_16|
1253 BT848_GPIO_DMA_CTL_PLTP23_16|
1254 BT848_GPIO_DMA_CTL_GPINTC|
1255 BT848_GPIO_DMA_CTL_GPINTI,
1256 BT848_GPIO_DMA_CTL);
1258 btwrite(0x20, BT848_E_VSCALE_HI);
1259 btwrite(0x20, BT848_O_VSCALE_HI);
1261 v4l2_ctrl_handler_setup(&btv->ctrl_handler);
1267 static void bttv_reinit_bt848(struct bttv *btv)
1269 unsigned long flags;
1272 pr_info("%d: reset, reinitialize\n", btv->c.nr);
1273 spin_lock_irqsave(&btv->s_lock,flags);
1275 bttv_set_dma(btv,0);
1276 spin_unlock_irqrestore(&btv->s_lock,flags);
1279 btv->pll.pll_current = -1;
1280 set_input(btv, btv->input, btv->tvnorm);
1283 static int bttv_s_ctrl(struct v4l2_ctrl *c)
1285 struct bttv *btv = container_of(c->handler, struct bttv, ctrl_handler);
1289 case V4L2_CID_BRIGHTNESS:
1290 bt848_bright(btv, c->val);
1293 bt848_hue(btv, c->val);
1295 case V4L2_CID_CONTRAST:
1296 bt848_contrast(btv, c->val);
1298 case V4L2_CID_SATURATION:
1299 bt848_sat(btv, c->val);
1301 case V4L2_CID_COLOR_KILLER:
1303 btor(BT848_SCLOOP_CKILL, BT848_E_SCLOOP);
1304 btor(BT848_SCLOOP_CKILL, BT848_O_SCLOOP);
1306 btand(~BT848_SCLOOP_CKILL, BT848_E_SCLOOP);
1307 btand(~BT848_SCLOOP_CKILL, BT848_O_SCLOOP);
1310 case V4L2_CID_AUDIO_MUTE:
1311 audio_mute(btv, c->val);
1314 case V4L2_CID_AUDIO_VOLUME:
1315 btv->volume_gpio(btv, c->val);
1318 case V4L2_CID_CHROMA_AGC:
1319 val = c->val ? BT848_SCLOOP_CAGC : 0;
1320 btwrite(val, BT848_E_SCLOOP);
1321 btwrite(val, BT848_O_SCLOOP);
1323 case V4L2_CID_PRIVATE_COMBFILTER:
1324 btv->opt_combfilter = c->val;
1326 case V4L2_CID_PRIVATE_LUMAFILTER:
1328 btand(~BT848_CONTROL_LDEC, BT848_E_CONTROL);
1329 btand(~BT848_CONTROL_LDEC, BT848_O_CONTROL);
1331 btor(BT848_CONTROL_LDEC, BT848_E_CONTROL);
1332 btor(BT848_CONTROL_LDEC, BT848_O_CONTROL);
1335 case V4L2_CID_PRIVATE_AUTOMUTE:
1336 btv->opt_automute = c->val;
1338 case V4L2_CID_PRIVATE_AGC_CRUSH:
1339 btwrite(BT848_ADC_RESERVED |
1340 (c->val ? BT848_ADC_CRUSH : 0),
1343 case V4L2_CID_PRIVATE_VCR_HACK:
1344 btv->opt_vcr_hack = c->val;
1346 case V4L2_CID_PRIVATE_WHITECRUSH_UPPER:
1347 btwrite(c->val, BT848_WC_UP);
1349 case V4L2_CID_PRIVATE_WHITECRUSH_LOWER:
1350 btwrite(c->val, BT848_WC_DOWN);
1352 case V4L2_CID_PRIVATE_UV_RATIO:
1353 btv->opt_uv_ratio = c->val;
1354 bt848_sat(btv, btv->saturation);
1356 case V4L2_CID_PRIVATE_FULL_LUMA_RANGE:
1357 btaor((c->val << 7), ~BT848_OFORM_RANGE, BT848_OFORM);
1359 case V4L2_CID_PRIVATE_CORING:
1360 btaor((c->val << 5), ~BT848_OFORM_CORE32, BT848_OFORM);
1368 /* ----------------------------------------------------------------------- */
1370 static const struct v4l2_ctrl_ops bttv_ctrl_ops = {
1371 .s_ctrl = bttv_s_ctrl,
1374 static struct v4l2_ctrl_config bttv_ctrl_combfilter = {
1375 .ops = &bttv_ctrl_ops,
1376 .id = V4L2_CID_PRIVATE_COMBFILTER,
1377 .name = "Comb Filter",
1378 .type = V4L2_CTRL_TYPE_BOOLEAN,
1385 static struct v4l2_ctrl_config bttv_ctrl_automute = {
1386 .ops = &bttv_ctrl_ops,
1387 .id = V4L2_CID_PRIVATE_AUTOMUTE,
1388 .name = "Auto Mute",
1389 .type = V4L2_CTRL_TYPE_BOOLEAN,
1396 static struct v4l2_ctrl_config bttv_ctrl_lumafilter = {
1397 .ops = &bttv_ctrl_ops,
1398 .id = V4L2_CID_PRIVATE_LUMAFILTER,
1399 .name = "Luma Decimation Filter",
1400 .type = V4L2_CTRL_TYPE_BOOLEAN,
1407 static struct v4l2_ctrl_config bttv_ctrl_agc_crush = {
1408 .ops = &bttv_ctrl_ops,
1409 .id = V4L2_CID_PRIVATE_AGC_CRUSH,
1410 .name = "AGC Crush",
1411 .type = V4L2_CTRL_TYPE_BOOLEAN,
1418 static struct v4l2_ctrl_config bttv_ctrl_vcr_hack = {
1419 .ops = &bttv_ctrl_ops,
1420 .id = V4L2_CID_PRIVATE_VCR_HACK,
1422 .type = V4L2_CTRL_TYPE_BOOLEAN,
1429 static struct v4l2_ctrl_config bttv_ctrl_whitecrush_lower = {
1430 .ops = &bttv_ctrl_ops,
1431 .id = V4L2_CID_PRIVATE_WHITECRUSH_LOWER,
1432 .name = "Whitecrush Lower",
1433 .type = V4L2_CTRL_TYPE_INTEGER,
1440 static struct v4l2_ctrl_config bttv_ctrl_whitecrush_upper = {
1441 .ops = &bttv_ctrl_ops,
1442 .id = V4L2_CID_PRIVATE_WHITECRUSH_UPPER,
1443 .name = "Whitecrush Upper",
1444 .type = V4L2_CTRL_TYPE_INTEGER,
1451 static struct v4l2_ctrl_config bttv_ctrl_uv_ratio = {
1452 .ops = &bttv_ctrl_ops,
1453 .id = V4L2_CID_PRIVATE_UV_RATIO,
1455 .type = V4L2_CTRL_TYPE_INTEGER,
1462 static struct v4l2_ctrl_config bttv_ctrl_full_luma = {
1463 .ops = &bttv_ctrl_ops,
1464 .id = V4L2_CID_PRIVATE_FULL_LUMA_RANGE,
1465 .name = "Full Luma Range",
1466 .type = V4L2_CTRL_TYPE_BOOLEAN,
1472 static struct v4l2_ctrl_config bttv_ctrl_coring = {
1473 .ops = &bttv_ctrl_ops,
1474 .id = V4L2_CID_PRIVATE_CORING,
1476 .type = V4L2_CTRL_TYPE_INTEGER,
1483 /* ----------------------------------------------------------------------- */
1485 void bttv_gpio_tracking(struct bttv *btv, char *comment)
1487 unsigned int outbits, data;
1488 outbits = btread(BT848_GPIO_OUT_EN);
1489 data = btread(BT848_GPIO_DATA);
1490 pr_debug("%d: gpio: en=%08x, out=%08x in=%08x [%s]\n",
1491 btv->c.nr, outbits, data & outbits, data & ~outbits, comment);
1494 static void bttv_field_count(struct bttv *btv)
1502 /* start field counter */
1503 btor(BT848_INT_VSYNC,BT848_INT_MASK);
1505 /* stop field counter */
1506 btand(~BT848_INT_VSYNC,BT848_INT_MASK);
1507 btv->field_count = 0;
1511 static const struct bttv_format*
1512 format_by_fourcc(int fourcc)
1516 for (i = 0; i < FORMATS; i++) {
1517 if (-1 == formats[i].fourcc)
1519 if (formats[i].fourcc == fourcc)
1525 /* ----------------------------------------------------------------------- */
1529 bttv_switch_overlay(struct bttv *btv, struct bttv_fh *fh,
1530 struct bttv_buffer *new)
1532 struct bttv_buffer *old;
1533 unsigned long flags;
1535 dprintk("switch_overlay: enter [new=%p]\n", new);
1537 new->vb.state = VIDEOBUF_DONE;
1538 spin_lock_irqsave(&btv->s_lock,flags);
1542 bttv_set_dma(btv, 0x03);
1543 spin_unlock_irqrestore(&btv->s_lock,flags);
1545 dprintk("switch_overlay: old=%p state is %d\n",
1546 old, old->vb.state);
1547 bttv_dma_free(&fh->cap,btv, old);
1551 free_btres_lock(btv,fh,RESOURCE_OVERLAY);
1552 dprintk("switch_overlay: done\n");
1556 /* ----------------------------------------------------------------------- */
1557 /* video4linux (1) interface */
1559 static int bttv_prepare_buffer(struct videobuf_queue *q,struct bttv *btv,
1560 struct bttv_buffer *buf,
1561 const struct bttv_format *fmt,
1562 unsigned int width, unsigned int height,
1563 enum v4l2_field field)
1565 struct bttv_fh *fh = q->priv_data;
1566 int redo_dma_risc = 0;
1571 /* check settings */
1574 if (fmt->btformat == BT848_COLOR_FMT_RAW) {
1576 height = RAW_LINES*2;
1577 if (width*height > buf->vb.bsize)
1579 buf->vb.size = buf->vb.bsize;
1581 /* Make sure tvnorm and vbi_end remain consistent
1582 until we're done. */
1586 /* In this mode capturing always starts at defrect.top
1587 (default VDELAY), ignoring cropping parameters. */
1588 if (btv->vbi_end > bttv_tvnorms[norm].cropcap.defrect.top) {
1592 c.rect = bttv_tvnorms[norm].cropcap.defrect;
1595 c = btv->crop[!!fh->do_crop];
1597 if (width < c.min_scaled_width ||
1598 width > c.max_scaled_width ||
1599 height < c.min_scaled_height)
1603 case V4L2_FIELD_TOP:
1604 case V4L2_FIELD_BOTTOM:
1605 case V4L2_FIELD_ALTERNATE:
1606 /* btv->crop counts frame lines. Max. scale
1607 factor is 16:1 for frames, 8:1 for fields. */
1608 if (height * 2 > c.max_scaled_height)
1613 if (height > c.max_scaled_height)
1618 buf->vb.size = (width * height * fmt->depth) >> 3;
1619 if (0 != buf->vb.baddr && buf->vb.bsize < buf->vb.size)
1623 /* alloc + fill struct bttv_buffer (if changed) */
1624 if (buf->vb.width != width || buf->vb.height != height ||
1625 buf->vb.field != field ||
1626 buf->tvnorm != norm || buf->fmt != fmt ||
1627 buf->crop.top != c.rect.top ||
1628 buf->crop.left != c.rect.left ||
1629 buf->crop.width != c.rect.width ||
1630 buf->crop.height != c.rect.height) {
1631 buf->vb.width = width;
1632 buf->vb.height = height;
1633 buf->vb.field = field;
1640 /* alloc risc memory */
1641 if (VIDEOBUF_NEEDS_INIT == buf->vb.state) {
1643 if (0 != (rc = videobuf_iolock(q,&buf->vb,&btv->fbuf)))
1648 if (0 != (rc = bttv_buffer_risc(btv,buf)))
1651 buf->vb.state = VIDEOBUF_PREPARED;
1655 bttv_dma_free(q,btv,buf);
1660 buffer_setup(struct videobuf_queue *q, unsigned int *count, unsigned int *size)
1662 struct bttv_fh *fh = q->priv_data;
1664 *size = fh->fmt->depth*fh->width*fh->height >> 3;
1667 if (*size * *count > gbuffers * gbufsize)
1668 *count = (gbuffers * gbufsize) / *size;
1673 buffer_prepare(struct videobuf_queue *q, struct videobuf_buffer *vb,
1674 enum v4l2_field field)
1676 struct bttv_buffer *buf = container_of(vb,struct bttv_buffer,vb);
1677 struct bttv_fh *fh = q->priv_data;
1679 return bttv_prepare_buffer(q,fh->btv, buf, fh->fmt,
1680 fh->width, fh->height, field);
1684 buffer_queue(struct videobuf_queue *q, struct videobuf_buffer *vb)
1686 struct bttv_buffer *buf = container_of(vb,struct bttv_buffer,vb);
1687 struct bttv_fh *fh = q->priv_data;
1688 struct bttv *btv = fh->btv;
1690 buf->vb.state = VIDEOBUF_QUEUED;
1691 list_add_tail(&buf->vb.queue,&btv->capture);
1692 if (!btv->curr.frame_irq) {
1694 bttv_set_dma(btv, 0x03);
1698 static void buffer_release(struct videobuf_queue *q, struct videobuf_buffer *vb)
1700 struct bttv_buffer *buf = container_of(vb,struct bttv_buffer,vb);
1701 struct bttv_fh *fh = q->priv_data;
1703 bttv_dma_free(q,fh->btv,buf);
1706 static struct videobuf_queue_ops bttv_video_qops = {
1707 .buf_setup = buffer_setup,
1708 .buf_prepare = buffer_prepare,
1709 .buf_queue = buffer_queue,
1710 .buf_release = buffer_release,
1713 static void radio_enable(struct bttv *btv)
1715 /* Switch to the radio tuner */
1716 if (!btv->has_radio_tuner) {
1717 btv->has_radio_tuner = 1;
1718 bttv_call_all(btv, tuner, s_radio);
1719 btv->audio_input = TVAUDIO_INPUT_RADIO;
1720 audio_input(btv, btv->audio_input);
1724 static int bttv_s_std(struct file *file, void *priv, v4l2_std_id id)
1726 struct bttv_fh *fh = priv;
1727 struct bttv *btv = fh->btv;
1731 for (i = 0; i < BTTV_TVNORMS; i++)
1732 if (id & bttv_tvnorms[i].v4l2_id)
1734 if (i == BTTV_TVNORMS) {
1747 static int bttv_g_std(struct file *file, void *priv, v4l2_std_id *id)
1749 struct bttv_fh *fh = priv;
1750 struct bttv *btv = fh->btv;
1756 static int bttv_querystd(struct file *file, void *f, v4l2_std_id *id)
1758 struct bttv_fh *fh = f;
1759 struct bttv *btv = fh->btv;
1761 if (btread(BT848_DSTATUS) & BT848_DSTATUS_NUML)
1762 *id &= V4L2_STD_625_50;
1764 *id &= V4L2_STD_525_60;
1768 static int bttv_enum_input(struct file *file, void *priv,
1769 struct v4l2_input *i)
1771 struct bttv_fh *fh = priv;
1772 struct bttv *btv = fh->btv;
1775 if (i->index >= bttv_tvcards[btv->c.type].video_inputs) {
1780 i->type = V4L2_INPUT_TYPE_CAMERA;
1783 if (btv->tuner_type != TUNER_ABSENT && i->index == 0) {
1784 sprintf(i->name, "Television");
1785 i->type = V4L2_INPUT_TYPE_TUNER;
1787 } else if (i->index == btv->svhs) {
1788 sprintf(i->name, "S-Video");
1790 sprintf(i->name, "Composite%d", i->index);
1793 if (i->index == btv->input) {
1794 __u32 dstatus = btread(BT848_DSTATUS);
1795 if (0 == (dstatus & BT848_DSTATUS_PRES))
1796 i->status |= V4L2_IN_ST_NO_SIGNAL;
1797 if (0 == (dstatus & BT848_DSTATUS_HLOC))
1798 i->status |= V4L2_IN_ST_NO_H_LOCK;
1801 i->std = BTTV_NORMS;
1808 static int bttv_g_input(struct file *file, void *priv, unsigned int *i)
1810 struct bttv_fh *fh = priv;
1811 struct bttv *btv = fh->btv;
1818 static int bttv_s_input(struct file *file, void *priv, unsigned int i)
1820 struct bttv_fh *fh = priv;
1821 struct bttv *btv = fh->btv;
1823 if (i >= bttv_tvcards[btv->c.type].video_inputs)
1826 set_input(btv, i, btv->tvnorm);
1830 static int bttv_s_tuner(struct file *file, void *priv,
1831 const struct v4l2_tuner *t)
1833 struct bttv_fh *fh = priv;
1834 struct bttv *btv = fh->btv;
1839 bttv_call_all(btv, tuner, s_tuner, t);
1841 if (btv->audio_mode_gpio) {
1842 struct v4l2_tuner copy = *t;
1844 btv->audio_mode_gpio(btv, ©, 1);
1849 static int bttv_g_frequency(struct file *file, void *priv,
1850 struct v4l2_frequency *f)
1852 struct bttv_fh *fh = priv;
1853 struct bttv *btv = fh->btv;
1858 if (f->type == V4L2_TUNER_RADIO)
1860 f->frequency = f->type == V4L2_TUNER_RADIO ?
1861 btv->radio_freq : btv->tv_freq;
1866 static void bttv_set_frequency(struct bttv *btv, const struct v4l2_frequency *f)
1868 struct v4l2_frequency new_freq = *f;
1870 bttv_call_all(btv, tuner, s_frequency, f);
1871 /* s_frequency may clamp the frequency, so get the actual
1872 frequency before assigning radio/tv_freq. */
1873 bttv_call_all(btv, tuner, g_frequency, &new_freq);
1874 if (new_freq.type == V4L2_TUNER_RADIO) {
1876 btv->radio_freq = new_freq.frequency;
1877 if (btv->has_tea575x) {
1878 btv->tea.freq = btv->radio_freq;
1879 snd_tea575x_set_freq(&btv->tea);
1882 btv->tv_freq = new_freq.frequency;
1886 static int bttv_s_frequency(struct file *file, void *priv,
1887 const struct v4l2_frequency *f)
1889 struct bttv_fh *fh = priv;
1890 struct bttv *btv = fh->btv;
1895 bttv_set_frequency(btv, f);
1899 static int bttv_log_status(struct file *file, void *f)
1901 struct video_device *vdev = video_devdata(file);
1902 struct bttv_fh *fh = f;
1903 struct bttv *btv = fh->btv;
1905 v4l2_ctrl_handler_log_status(vdev->ctrl_handler, btv->c.v4l2_dev.name);
1906 bttv_call_all(btv, core, log_status);
1910 #ifdef CONFIG_VIDEO_ADV_DEBUG
1911 static int bttv_g_register(struct file *file, void *f,
1912 struct v4l2_dbg_register *reg)
1914 struct bttv_fh *fh = f;
1915 struct bttv *btv = fh->btv;
1917 /* bt848 has a 12-bit register space */
1919 reg->val = btread(reg->reg);
1925 static int bttv_s_register(struct file *file, void *f,
1926 const struct v4l2_dbg_register *reg)
1928 struct bttv_fh *fh = f;
1929 struct bttv *btv = fh->btv;
1931 /* bt848 has a 12-bit register space */
1932 btwrite(reg->val, reg->reg & 0xfff);
1938 /* Given cropping boundaries b and the scaled width and height of a
1939 single field or frame, which must not exceed hardware limits, this
1940 function adjusts the cropping parameters c. */
1942 bttv_crop_adjust (struct bttv_crop * c,
1943 const struct v4l2_rect * b,
1946 enum v4l2_field field)
1948 __s32 frame_height = height << !V4L2_FIELD_HAS_BOTH(field);
1952 if (width < c->min_scaled_width) {
1953 /* Max. hor. scale factor 16:1. */
1954 c->rect.width = width * 16;
1955 } else if (width > c->max_scaled_width) {
1956 /* Min. hor. scale factor 1:1. */
1957 c->rect.width = width;
1959 max_left = b->left + b->width - width;
1960 max_left = min(max_left, (__s32) MAX_HDELAY);
1961 if (c->rect.left > max_left)
1962 c->rect.left = max_left;
1965 if (height < c->min_scaled_height) {
1966 /* Max. vert. scale factor 16:1, single fields 8:1. */
1967 c->rect.height = height * 16;
1968 } else if (frame_height > c->max_scaled_height) {
1969 /* Min. vert. scale factor 1:1.
1970 Top and height count field lines times two. */
1971 c->rect.height = (frame_height + 1) & ~1;
1973 max_top = b->top + b->height - c->rect.height;
1974 if (c->rect.top > max_top)
1975 c->rect.top = max_top;
1978 bttv_crop_calc_limits(c);
1981 /* Returns an error if scaling to a frame or single field with the given
1982 width and height is not possible with the current cropping parameters
1983 and width aligned according to width_mask. If adjust_size is TRUE the
1984 function may adjust the width and/or height instead, rounding width
1985 to (width + width_bias) & width_mask. If adjust_crop is TRUE it may
1986 also adjust the current cropping parameters to get closer to the
1987 desired image size. */
1989 limit_scaled_size_lock (struct bttv_fh * fh,
1992 enum v4l2_field field,
1993 unsigned int width_mask,
1994 unsigned int width_bias,
1998 struct bttv *btv = fh->btv;
1999 const struct v4l2_rect *b;
2000 struct bttv_crop *c;
2007 BUG_ON((int) width_mask >= 0 ||
2008 width_bias >= (unsigned int) -width_mask);
2010 /* Make sure tvnorm, vbi_end and the current cropping parameters
2011 remain consistent until we're done. */
2013 b = &bttv_tvnorms[btv->tvnorm].cropcap.bounds;
2015 /* Do crop - use current, don't - use default parameters. */
2016 c = &btv->crop[!!fh->do_crop];
2021 && !locked_btres(btv, VIDEO_RESOURCES)) {
2025 /* We cannot scale up. When the scaled image is larger
2026 than crop.rect we adjust the crop.rect as required
2027 by the V4L2 spec, hence cropcap.bounds are our limit. */
2028 max_width = min_t(unsigned int, b->width, MAX_HACTIVE);
2029 max_height = b->height;
2031 /* We cannot capture the same line as video and VBI data.
2032 Note btv->vbi_end is really a minimum, see
2033 bttv_vbi_try_fmt(). */
2034 if (btv->vbi_end > b->top) {
2035 max_height -= btv->vbi_end - b->top;
2037 if (min_height > max_height)
2042 if (btv->vbi_end > c->rect.top)
2045 min_width = c->min_scaled_width;
2046 min_height = c->min_scaled_height;
2047 max_width = c->max_scaled_width;
2048 max_height = c->max_scaled_height;
2053 min_width = (min_width - width_mask - 1) & width_mask;
2054 max_width = max_width & width_mask;
2056 /* Max. scale factor is 16:1 for frames, 8:1 for fields. */
2057 min_height = min_height;
2058 /* Min. scale factor is 1:1. */
2059 max_height >>= !V4L2_FIELD_HAS_BOTH(field);
2062 *width = clamp(*width, min_width, max_width);
2063 *height = clamp(*height, min_height, max_height);
2065 /* Round after clamping to avoid overflow. */
2066 *width = (*width + width_bias) & width_mask;
2069 bttv_crop_adjust(c, b, *width, *height, field);
2071 if (btv->vbi_end > c->rect.top) {
2072 /* Move the crop window out of the way. */
2073 c->rect.top = btv->vbi_end;
2078 if (*width < min_width ||
2079 *height < min_height ||
2080 *width > max_width ||
2081 *height > max_height ||
2082 0 != (*width & ~width_mask))
2086 rc = 0; /* success */
2093 /* Returns an error if the given overlay window dimensions are not
2094 possible with the current cropping parameters. If adjust_size is
2095 TRUE the function may adjust the window width and/or height
2096 instead, however it always rounds the horizontal position and
2097 width as btcx_align() does. If adjust_crop is TRUE the function
2098 may also adjust the current cropping parameters to get closer
2099 to the desired window size. */
2101 verify_window_lock(struct bttv_fh *fh, struct v4l2_window *win,
2102 int adjust_size, int adjust_crop)
2104 enum v4l2_field field;
2105 unsigned int width_mask;
2108 if (win->w.width < 48)
2110 if (win->w.height < 32)
2112 if (win->clipcount > 2048)
2113 win->clipcount = 2048;
2116 win->global_alpha = 0;
2120 case V4L2_FIELD_TOP:
2121 case V4L2_FIELD_BOTTOM:
2122 case V4L2_FIELD_INTERLACED:
2125 field = V4L2_FIELD_ANY;
2128 if (V4L2_FIELD_ANY == field) {
2131 height2 = fh->btv->crop[!!fh->do_crop].rect.height >> 1;
2132 field = (win->w.height > height2)
2133 ? V4L2_FIELD_INTERLACED
2138 if (NULL == fh->ovfmt)
2140 /* 4-byte alignment. */
2142 switch (fh->ovfmt->depth) {
2156 win->w.width -= win->w.left & ~width_mask;
2157 win->w.left = (win->w.left - width_mask - 1) & width_mask;
2159 rc = limit_scaled_size_lock(fh, &win->w.width, &win->w.height,
2161 /* width_bias: round down */ 0,
2162 adjust_size, adjust_crop);
2168 static int setup_window_lock(struct bttv_fh *fh, struct bttv *btv,
2169 struct v4l2_window *win, int fixup)
2171 struct v4l2_clip *clips = NULL;
2172 int n,size,retval = 0;
2174 if (NULL == fh->ovfmt)
2176 if (!(fh->ovfmt->flags & FORMAT_FLAGS_PACKED))
2178 retval = verify_window_lock(fh, win,
2179 /* adjust_size */ fixup,
2180 /* adjust_crop */ fixup);
2184 /* copy clips -- luckily v4l1 + v4l2 are binary
2185 compatible here ...*/
2187 size = sizeof(*clips)*(n+4);
2188 clips = kmalloc(size,GFP_KERNEL);
2192 if (copy_from_user(clips,win->clips,sizeof(struct v4l2_clip)*n)) {
2198 /* clip against screen */
2199 if (NULL != btv->fbuf.base)
2200 n = btcx_screen_clips(btv->fbuf.fmt.width, btv->fbuf.fmt.height,
2202 btcx_sort_clips(clips,n);
2204 /* 4-byte alignments */
2205 switch (fh->ovfmt->depth) {
2208 btcx_align(&win->w, clips, n, 3);
2211 btcx_align(&win->w, clips, n, 1);
2214 /* no alignment fixups needed */
2220 kfree(fh->ov.clips);
2221 fh->ov.clips = clips;
2225 fh->ov.field = win->field;
2226 fh->ov.setup_ok = 1;
2228 btv->init.ov.w.width = win->w.width;
2229 btv->init.ov.w.height = win->w.height;
2230 btv->init.ov.field = win->field;
2232 /* update overlay if needed */
2234 if (check_btres(fh, RESOURCE_OVERLAY)) {
2235 struct bttv_buffer *new;
2237 new = videobuf_sg_alloc(sizeof(*new));
2238 new->crop = btv->crop[!!fh->do_crop].rect;
2239 bttv_overlay_risc(btv, &fh->ov, fh->ovfmt, new);
2240 retval = bttv_switch_overlay(btv,fh,new);
2245 /* ----------------------------------------------------------------------- */
2247 static struct videobuf_queue* bttv_queue(struct bttv_fh *fh)
2249 struct videobuf_queue* q = NULL;
2252 case V4L2_BUF_TYPE_VIDEO_CAPTURE:
2255 case V4L2_BUF_TYPE_VBI_CAPTURE:
2264 static int bttv_resource(struct bttv_fh *fh)
2269 case V4L2_BUF_TYPE_VIDEO_CAPTURE:
2270 res = RESOURCE_VIDEO_STREAM;
2272 case V4L2_BUF_TYPE_VBI_CAPTURE:
2281 static int bttv_switch_type(struct bttv_fh *fh, enum v4l2_buf_type type)
2283 struct videobuf_queue *q = bttv_queue(fh);
2284 int res = bttv_resource(fh);
2286 if (check_btres(fh,res))
2288 if (videobuf_queue_is_busy(q))
2295 pix_format_set_size (struct v4l2_pix_format * f,
2296 const struct bttv_format * fmt,
2298 unsigned int height)
2303 if (fmt->flags & FORMAT_FLAGS_PLANAR) {
2304 f->bytesperline = width; /* Y plane */
2305 f->sizeimage = (width * height * fmt->depth) >> 3;
2307 f->bytesperline = (width * fmt->depth) >> 3;
2308 f->sizeimage = height * f->bytesperline;
2312 static int bttv_g_fmt_vid_cap(struct file *file, void *priv,
2313 struct v4l2_format *f)
2315 struct bttv_fh *fh = priv;
2317 pix_format_set_size(&f->fmt.pix, fh->fmt,
2318 fh->width, fh->height);
2319 f->fmt.pix.field = fh->cap.field;
2320 f->fmt.pix.pixelformat = fh->fmt->fourcc;
2321 f->fmt.pix.colorspace = V4L2_COLORSPACE_SMPTE170M;
2326 static int bttv_g_fmt_vid_overlay(struct file *file, void *priv,
2327 struct v4l2_format *f)
2329 struct bttv_fh *fh = priv;
2331 f->fmt.win.w = fh->ov.w;
2332 f->fmt.win.field = fh->ov.field;
2337 static int bttv_try_fmt_vid_cap(struct file *file, void *priv,
2338 struct v4l2_format *f)
2340 const struct bttv_format *fmt;
2341 struct bttv_fh *fh = priv;
2342 struct bttv *btv = fh->btv;
2343 enum v4l2_field field;
2344 __s32 width, height;
2348 fmt = format_by_fourcc(f->fmt.pix.pixelformat);
2352 field = f->fmt.pix.field;
2355 case V4L2_FIELD_TOP:
2356 case V4L2_FIELD_BOTTOM:
2357 case V4L2_FIELD_ALTERNATE:
2358 case V4L2_FIELD_INTERLACED:
2360 case V4L2_FIELD_SEQ_BT:
2361 case V4L2_FIELD_SEQ_TB:
2362 if (!(fmt->flags & FORMAT_FLAGS_PLANAR)) {
2363 field = V4L2_FIELD_SEQ_TB;
2367 default: /* FIELD_ANY case */
2368 height2 = btv->crop[!!fh->do_crop].rect.height >> 1;
2369 field = (f->fmt.pix.height > height2)
2370 ? V4L2_FIELD_INTERLACED
2371 : V4L2_FIELD_BOTTOM;
2375 width = f->fmt.pix.width;
2376 height = f->fmt.pix.height;
2378 rc = limit_scaled_size_lock(fh, &width, &height, field,
2379 /* width_mask: 4 pixels */ ~3,
2380 /* width_bias: nearest */ 2,
2381 /* adjust_size */ 1,
2382 /* adjust_crop */ 0);
2386 /* update data for the application */
2387 f->fmt.pix.field = field;
2388 pix_format_set_size(&f->fmt.pix, fmt, width, height);
2389 f->fmt.pix.colorspace = V4L2_COLORSPACE_SMPTE170M;
2394 static int bttv_try_fmt_vid_overlay(struct file *file, void *priv,
2395 struct v4l2_format *f)
2397 struct bttv_fh *fh = priv;
2399 verify_window_lock(fh, &f->fmt.win,
2400 /* adjust_size */ 1,
2401 /* adjust_crop */ 0);
2405 static int bttv_s_fmt_vid_cap(struct file *file, void *priv,
2406 struct v4l2_format *f)
2409 const struct bttv_format *fmt;
2410 struct bttv_fh *fh = priv;
2411 struct bttv *btv = fh->btv;
2412 __s32 width, height;
2413 enum v4l2_field field;
2415 retval = bttv_switch_type(fh, f->type);
2419 retval = bttv_try_fmt_vid_cap(file, priv, f);
2423 width = f->fmt.pix.width;
2424 height = f->fmt.pix.height;
2425 field = f->fmt.pix.field;
2427 retval = limit_scaled_size_lock(fh, &width, &height, f->fmt.pix.field,
2428 /* width_mask: 4 pixels */ ~3,
2429 /* width_bias: nearest */ 2,
2430 /* adjust_size */ 1,
2431 /* adjust_crop */ 1);
2435 f->fmt.pix.field = field;
2437 fmt = format_by_fourcc(f->fmt.pix.pixelformat);
2439 /* update our state informations */
2441 fh->cap.field = f->fmt.pix.field;
2442 fh->cap.last = V4L2_FIELD_NONE;
2443 fh->width = f->fmt.pix.width;
2444 fh->height = f->fmt.pix.height;
2445 btv->init.fmt = fmt;
2446 btv->init.width = f->fmt.pix.width;
2447 btv->init.height = f->fmt.pix.height;
2452 static int bttv_s_fmt_vid_overlay(struct file *file, void *priv,
2453 struct v4l2_format *f)
2455 struct bttv_fh *fh = priv;
2456 struct bttv *btv = fh->btv;
2458 if (no_overlay > 0) {
2459 pr_err("V4L2_BUF_TYPE_VIDEO_OVERLAY: no_overlay\n");
2463 return setup_window_lock(fh, btv, &f->fmt.win, 1);
2466 static int bttv_querycap(struct file *file, void *priv,
2467 struct v4l2_capability *cap)
2469 struct video_device *vdev = video_devdata(file);
2470 struct bttv_fh *fh = priv;
2471 struct bttv *btv = fh->btv;
2476 strlcpy(cap->driver, "bttv", sizeof(cap->driver));
2477 strlcpy(cap->card, btv->video_dev.name, sizeof(cap->card));
2478 snprintf(cap->bus_info, sizeof(cap->bus_info),
2479 "PCI:%s", pci_name(btv->c.pci));
2481 V4L2_CAP_VIDEO_CAPTURE |
2482 V4L2_CAP_READWRITE |
2483 V4L2_CAP_STREAMING |
2484 V4L2_CAP_DEVICE_CAPS;
2485 if (no_overlay <= 0)
2486 cap->capabilities |= V4L2_CAP_VIDEO_OVERLAY;
2487 if (video_is_registered(&btv->vbi_dev))
2488 cap->capabilities |= V4L2_CAP_VBI_CAPTURE;
2489 if (video_is_registered(&btv->radio_dev))
2490 cap->capabilities |= V4L2_CAP_RADIO;
2493 * No need to lock here: those vars are initialized during board
2494 * probe and remains untouched during the rest of the driver lifecycle
2496 if (btv->has_saa6588)
2497 cap->capabilities |= V4L2_CAP_RDS_CAPTURE;
2498 if (btv->tuner_type != TUNER_ABSENT)
2499 cap->capabilities |= V4L2_CAP_TUNER;
2500 if (vdev->vfl_type == VFL_TYPE_GRABBER)
2501 cap->device_caps = cap->capabilities &
2502 (V4L2_CAP_VIDEO_CAPTURE |
2503 V4L2_CAP_READWRITE |
2504 V4L2_CAP_STREAMING |
2505 V4L2_CAP_VIDEO_OVERLAY |
2507 else if (vdev->vfl_type == VFL_TYPE_VBI)
2508 cap->device_caps = cap->capabilities &
2509 (V4L2_CAP_VBI_CAPTURE |
2510 V4L2_CAP_READWRITE |
2511 V4L2_CAP_STREAMING |
2514 cap->device_caps = V4L2_CAP_RADIO | V4L2_CAP_TUNER;
2515 if (btv->has_saa6588)
2516 cap->device_caps |= V4L2_CAP_READWRITE |
2517 V4L2_CAP_RDS_CAPTURE;
2518 if (btv->has_tea575x)
2519 cap->device_caps |= V4L2_CAP_HW_FREQ_SEEK;
2524 static int bttv_enum_fmt_cap_ovr(struct v4l2_fmtdesc *f)
2528 for (i = 0; i < FORMATS; i++) {
2529 if (formats[i].fourcc != -1)
2531 if ((unsigned int)index == f->index)
2537 f->pixelformat = formats[i].fourcc;
2538 strlcpy(f->description, formats[i].name, sizeof(f->description));
2543 static int bttv_enum_fmt_vid_cap(struct file *file, void *priv,
2544 struct v4l2_fmtdesc *f)
2546 int rc = bttv_enum_fmt_cap_ovr(f);
2554 static int bttv_enum_fmt_vid_overlay(struct file *file, void *priv,
2555 struct v4l2_fmtdesc *f)
2559 if (no_overlay > 0) {
2560 pr_err("V4L2_BUF_TYPE_VIDEO_OVERLAY: no_overlay\n");
2564 rc = bttv_enum_fmt_cap_ovr(f);
2569 if (!(formats[rc].flags & FORMAT_FLAGS_PACKED))
2575 static int bttv_g_fbuf(struct file *file, void *f,
2576 struct v4l2_framebuffer *fb)
2578 struct bttv_fh *fh = f;
2579 struct bttv *btv = fh->btv;
2582 fb->capability = V4L2_FBUF_CAP_LIST_CLIPPING;
2583 fb->flags = V4L2_FBUF_FLAG_PRIMARY;
2585 fb->fmt.pixelformat = fh->ovfmt->fourcc;
2589 static int bttv_overlay(struct file *file, void *f, unsigned int on)
2591 struct bttv_fh *fh = f;
2592 struct bttv *btv = fh->btv;
2593 struct bttv_buffer *new;
2598 if (unlikely(!btv->fbuf.base)) {
2601 if (unlikely(!fh->ov.setup_ok)) {
2602 dprintk("%d: overlay: !setup_ok\n", btv->c.nr);
2609 if (!check_alloc_btres_lock(btv, fh, RESOURCE_OVERLAY))
2613 fh->ov.tvnorm = btv->tvnorm;
2614 new = videobuf_sg_alloc(sizeof(*new));
2615 new->crop = btv->crop[!!fh->do_crop].rect;
2616 bttv_overlay_risc(btv, &fh->ov, fh->ovfmt, new);
2622 retval = bttv_switch_overlay(btv, fh, new);
2626 static int bttv_s_fbuf(struct file *file, void *f,
2627 const struct v4l2_framebuffer *fb)
2629 struct bttv_fh *fh = f;
2630 struct bttv *btv = fh->btv;
2631 const struct bttv_format *fmt;
2634 if (!capable(CAP_SYS_ADMIN) &&
2635 !capable(CAP_SYS_RAWIO))
2639 fmt = format_by_fourcc(fb->fmt.pixelformat);
2642 if (0 == (fmt->flags & FORMAT_FLAGS_PACKED))
2646 if (fb->flags & V4L2_FBUF_FLAG_OVERLAY) {
2647 __s32 width = fb->fmt.width;
2648 __s32 height = fb->fmt.height;
2650 retval = limit_scaled_size_lock(fh, &width, &height,
2651 V4L2_FIELD_INTERLACED,
2652 /* width_mask */ ~3,
2654 /* adjust_size */ 0,
2655 /* adjust_crop */ 0);
2661 btv->fbuf.base = fb->base;
2662 btv->fbuf.fmt.width = fb->fmt.width;
2663 btv->fbuf.fmt.height = fb->fmt.height;
2664 if (0 != fb->fmt.bytesperline)
2665 btv->fbuf.fmt.bytesperline = fb->fmt.bytesperline;
2667 btv->fbuf.fmt.bytesperline = btv->fbuf.fmt.width*fmt->depth/8;
2671 btv->init.ovfmt = fmt;
2672 if (fb->flags & V4L2_FBUF_FLAG_OVERLAY) {
2675 fh->ov.w.width = fb->fmt.width;
2676 fh->ov.w.height = fb->fmt.height;
2677 btv->init.ov.w.width = fb->fmt.width;
2678 btv->init.ov.w.height = fb->fmt.height;
2679 kfree(fh->ov.clips);
2680 fh->ov.clips = NULL;
2683 if (check_btres(fh, RESOURCE_OVERLAY)) {
2684 struct bttv_buffer *new;
2686 new = videobuf_sg_alloc(sizeof(*new));
2687 new->crop = btv->crop[!!fh->do_crop].rect;
2688 bttv_overlay_risc(btv, &fh->ov, fh->ovfmt, new);
2689 retval = bttv_switch_overlay(btv, fh, new);
2695 static int bttv_reqbufs(struct file *file, void *priv,
2696 struct v4l2_requestbuffers *p)
2698 struct bttv_fh *fh = priv;
2699 return videobuf_reqbufs(bttv_queue(fh), p);
2702 static int bttv_querybuf(struct file *file, void *priv,
2703 struct v4l2_buffer *b)
2705 struct bttv_fh *fh = priv;
2706 return videobuf_querybuf(bttv_queue(fh), b);
2709 static int bttv_qbuf(struct file *file, void *priv, struct v4l2_buffer *b)
2711 struct bttv_fh *fh = priv;
2712 struct bttv *btv = fh->btv;
2713 int res = bttv_resource(fh);
2715 if (!check_alloc_btres_lock(btv, fh, res))
2718 return videobuf_qbuf(bttv_queue(fh), b);
2721 static int bttv_dqbuf(struct file *file, void *priv, struct v4l2_buffer *b)
2723 struct bttv_fh *fh = priv;
2724 return videobuf_dqbuf(bttv_queue(fh), b,
2725 file->f_flags & O_NONBLOCK);
2728 static int bttv_streamon(struct file *file, void *priv,
2729 enum v4l2_buf_type type)
2731 struct bttv_fh *fh = priv;
2732 struct bttv *btv = fh->btv;
2733 int res = bttv_resource(fh);
2735 if (!check_alloc_btres_lock(btv, fh, res))
2737 return videobuf_streamon(bttv_queue(fh));
2741 static int bttv_streamoff(struct file *file, void *priv,
2742 enum v4l2_buf_type type)
2744 struct bttv_fh *fh = priv;
2745 struct bttv *btv = fh->btv;
2747 int res = bttv_resource(fh);
2750 retval = videobuf_streamoff(bttv_queue(fh));
2753 free_btres_lock(btv, fh, res);
2757 static int bttv_g_parm(struct file *file, void *f,
2758 struct v4l2_streamparm *parm)
2760 struct bttv_fh *fh = f;
2761 struct bttv *btv = fh->btv;
2763 if (parm->type != V4L2_BUF_TYPE_VIDEO_CAPTURE)
2765 parm->parm.capture.readbuffers = gbuffers;
2766 v4l2_video_std_frame_period(bttv_tvnorms[btv->tvnorm].v4l2_id,
2767 &parm->parm.capture.timeperframe);
2772 static int bttv_g_tuner(struct file *file, void *priv,
2773 struct v4l2_tuner *t)
2775 struct bttv_fh *fh = priv;
2776 struct bttv *btv = fh->btv;
2781 t->rxsubchans = V4L2_TUNER_SUB_MONO;
2782 t->capability = V4L2_TUNER_CAP_NORM;
2783 bttv_call_all(btv, tuner, g_tuner, t);
2784 strcpy(t->name, "Television");
2785 t->type = V4L2_TUNER_ANALOG_TV;
2786 if (btread(BT848_DSTATUS)&BT848_DSTATUS_HLOC)
2789 if (btv->audio_mode_gpio)
2790 btv->audio_mode_gpio(btv, t, 0);
2795 static int bttv_cropcap(struct file *file, void *priv,
2796 struct v4l2_cropcap *cap)
2798 struct bttv_fh *fh = priv;
2799 struct bttv *btv = fh->btv;
2801 if (cap->type != V4L2_BUF_TYPE_VIDEO_CAPTURE &&
2802 cap->type != V4L2_BUF_TYPE_VIDEO_OVERLAY)
2805 *cap = bttv_tvnorms[btv->tvnorm].cropcap;
2810 static int bttv_g_crop(struct file *file, void *f, struct v4l2_crop *crop)
2812 struct bttv_fh *fh = f;
2813 struct bttv *btv = fh->btv;
2815 if (crop->type != V4L2_BUF_TYPE_VIDEO_CAPTURE &&
2816 crop->type != V4L2_BUF_TYPE_VIDEO_OVERLAY)
2819 /* No fh->do_crop = 1; because btv->crop[1] may be
2820 inconsistent with fh->width or fh->height and apps
2821 do not expect a change here. */
2823 crop->c = btv->crop[!!fh->do_crop].rect;
2828 static int bttv_s_crop(struct file *file, void *f, const struct v4l2_crop *crop)
2830 struct bttv_fh *fh = f;
2831 struct bttv *btv = fh->btv;
2832 const struct v4l2_rect *b;
2840 if (crop->type != V4L2_BUF_TYPE_VIDEO_CAPTURE &&
2841 crop->type != V4L2_BUF_TYPE_VIDEO_OVERLAY)
2844 /* Make sure tvnorm, vbi_end and the current cropping
2845 parameters remain consistent until we're done. Note
2846 read() may change vbi_end in check_alloc_btres_lock(). */
2849 if (locked_btres(fh->btv, VIDEO_RESOURCES)) {
2853 b = &bttv_tvnorms[btv->tvnorm].cropcap.bounds;
2856 b_right = b_left + b->width;
2857 b_bottom = b->top + b->height;
2859 b_top = max(b->top, btv->vbi_end);
2860 if (b_top + 32 >= b_bottom) {
2864 /* Min. scaled size 48 x 32. */
2865 c.rect.left = clamp_t(s32, crop->c.left, b_left, b_right - 48);
2866 c.rect.left = min(c.rect.left, (__s32) MAX_HDELAY);
2868 c.rect.width = clamp_t(s32, crop->c.width,
2869 48, b_right - c.rect.left);
2871 c.rect.top = clamp_t(s32, crop->c.top, b_top, b_bottom - 32);
2872 /* Top and height must be a multiple of two. */
2873 c.rect.top = (c.rect.top + 1) & ~1;
2875 c.rect.height = clamp_t(s32, crop->c.height,
2876 32, b_bottom - c.rect.top);
2877 c.rect.height = (c.rect.height + 1) & ~1;
2879 bttv_crop_calc_limits(&c);
2885 if (fh->width < c.min_scaled_width) {
2886 fh->width = c.min_scaled_width;
2887 btv->init.width = c.min_scaled_width;
2888 } else if (fh->width > c.max_scaled_width) {
2889 fh->width = c.max_scaled_width;
2890 btv->init.width = c.max_scaled_width;
2893 if (fh->height < c.min_scaled_height) {
2894 fh->height = c.min_scaled_height;
2895 btv->init.height = c.min_scaled_height;
2896 } else if (fh->height > c.max_scaled_height) {
2897 fh->height = c.max_scaled_height;
2898 btv->init.height = c.max_scaled_height;
2904 static ssize_t bttv_read(struct file *file, char __user *data,
2905 size_t count, loff_t *ppos)
2907 struct bttv_fh *fh = file->private_data;
2910 if (fh->btv->errors)
2911 bttv_reinit_bt848(fh->btv);
2912 dprintk("%d: read count=%d type=%s\n",
2913 fh->btv->c.nr, (int)count, v4l2_type_names[fh->type]);
2916 case V4L2_BUF_TYPE_VIDEO_CAPTURE:
2917 if (!check_alloc_btres_lock(fh->btv, fh, RESOURCE_VIDEO_READ)) {
2918 /* VIDEO_READ in use by another fh,
2919 or VIDEO_STREAM by any fh. */
2922 retval = videobuf_read_one(&fh->cap, data, count, ppos,
2923 file->f_flags & O_NONBLOCK);
2924 free_btres_lock(fh->btv, fh, RESOURCE_VIDEO_READ);
2926 case V4L2_BUF_TYPE_VBI_CAPTURE:
2927 if (!check_alloc_btres_lock(fh->btv,fh,RESOURCE_VBI))
2929 retval = videobuf_read_stream(&fh->vbi, data, count, ppos, 1,
2930 file->f_flags & O_NONBLOCK);
2938 static unsigned int bttv_poll(struct file *file, poll_table *wait)
2940 struct bttv_fh *fh = file->private_data;
2941 struct bttv_buffer *buf;
2942 enum v4l2_field field;
2943 unsigned int rc = 0;
2944 unsigned long req_events = poll_requested_events(wait);
2946 if (v4l2_event_pending(&fh->fh))
2948 else if (req_events & POLLPRI)
2949 poll_wait(file, &fh->fh.wait, wait);
2951 if (!(req_events & (POLLIN | POLLRDNORM)))
2954 if (V4L2_BUF_TYPE_VBI_CAPTURE == fh->type) {
2955 if (!check_alloc_btres_lock(fh->btv,fh,RESOURCE_VBI))
2956 return rc | POLLERR;
2957 return rc | videobuf_poll_stream(file, &fh->vbi, wait);
2960 if (check_btres(fh,RESOURCE_VIDEO_STREAM)) {
2961 /* streaming capture */
2962 if (list_empty(&fh->cap.stream))
2963 return rc | POLLERR;
2964 buf = list_entry(fh->cap.stream.next,struct bttv_buffer,vb.stream);
2966 /* read() capture */
2967 if (NULL == fh->cap.read_buf) {
2968 /* need to capture a new frame */
2969 if (locked_btres(fh->btv,RESOURCE_VIDEO_STREAM))
2970 return rc | POLLERR;
2971 fh->cap.read_buf = videobuf_sg_alloc(fh->cap.msize);
2972 if (NULL == fh->cap.read_buf)
2973 return rc | POLLERR;
2974 fh->cap.read_buf->memory = V4L2_MEMORY_USERPTR;
2975 field = videobuf_next_field(&fh->cap);
2976 if (0 != fh->cap.ops->buf_prepare(&fh->cap,fh->cap.read_buf,field)) {
2977 kfree (fh->cap.read_buf);
2978 fh->cap.read_buf = NULL;
2979 return rc | POLLERR;
2981 fh->cap.ops->buf_queue(&fh->cap,fh->cap.read_buf);
2982 fh->cap.read_off = 0;
2984 buf = (struct bttv_buffer*)fh->cap.read_buf;
2987 poll_wait(file, &buf->vb.done, wait);
2988 if (buf->vb.state == VIDEOBUF_DONE ||
2989 buf->vb.state == VIDEOBUF_ERROR)
2990 rc = rc | POLLIN|POLLRDNORM;
2994 static int bttv_open(struct file *file)
2996 struct video_device *vdev = video_devdata(file);
2997 struct bttv *btv = video_drvdata(file);
2999 enum v4l2_buf_type type = 0;
3001 dprintk("open dev=%s\n", video_device_node_name(vdev));
3003 if (vdev->vfl_type == VFL_TYPE_GRABBER) {
3004 type = V4L2_BUF_TYPE_VIDEO_CAPTURE;
3005 } else if (vdev->vfl_type == VFL_TYPE_VBI) {
3006 type = V4L2_BUF_TYPE_VBI_CAPTURE;
3012 dprintk("%d: open called (type=%s)\n",
3013 btv->c.nr, v4l2_type_names[type]);
3015 /* allocate per filehandle data */
3016 fh = kmalloc(sizeof(*fh), GFP_KERNEL);
3020 file->private_data = fh;
3023 v4l2_fh_init(&fh->fh, vdev);
3026 fh->ov.setup_ok = 0;
3028 videobuf_queue_sg_init(&fh->cap, &bttv_video_qops,
3029 &btv->c.pci->dev, &btv->s_lock,
3030 V4L2_BUF_TYPE_VIDEO_CAPTURE,
3031 V4L2_FIELD_INTERLACED,
3032 sizeof(struct bttv_buffer),
3034 videobuf_queue_sg_init(&fh->vbi, &bttv_vbi_qops,
3035 &btv->c.pci->dev, &btv->s_lock,
3036 V4L2_BUF_TYPE_VBI_CAPTURE,
3038 sizeof(struct bttv_buffer),
3040 set_tvnorm(btv,btv->tvnorm);
3041 set_input(btv, btv->input, btv->tvnorm);
3042 audio_mute(btv, btv->mute);
3044 /* The V4L2 spec requires one global set of cropping parameters
3045 which only change on request. These are stored in btv->crop[1].
3046 However for compatibility with V4L apps and cropping unaware
3047 V4L2 apps we now reset the cropping parameters as seen through
3048 this fh, which is to say VIDIOC_G_CROP and scaling limit checks
3049 will use btv->crop[0], the default cropping parameters for the
3050 current video standard, and VIDIOC_S_FMT will not implicitely
3051 change the cropping parameters until VIDIOC_S_CROP has been
3053 fh->do_crop = !reset_crop; /* module parameter */
3055 /* Likewise there should be one global set of VBI capture
3056 parameters, but for compatibility with V4L apps and earlier
3057 driver versions each fh has its own parameters. */
3058 bttv_vbi_fmt_reset(&fh->vbi_fmt, btv->tvnorm);
3060 bttv_field_count(btv);
3061 v4l2_fh_add(&fh->fh);
3065 static int bttv_release(struct file *file)
3067 struct bttv_fh *fh = file->private_data;
3068 struct bttv *btv = fh->btv;
3070 /* turn off overlay */
3071 if (check_btres(fh, RESOURCE_OVERLAY))
3072 bttv_switch_overlay(btv,fh,NULL);
3074 /* stop video capture */
3075 if (check_btres(fh, RESOURCE_VIDEO_STREAM)) {
3076 videobuf_streamoff(&fh->cap);
3077 free_btres_lock(btv,fh,RESOURCE_VIDEO_STREAM);
3079 if (fh->cap.read_buf) {
3080 buffer_release(&fh->cap,fh->cap.read_buf);
3081 kfree(fh->cap.read_buf);
3083 if (check_btres(fh, RESOURCE_VIDEO_READ)) {
3084 free_btres_lock(btv, fh, RESOURCE_VIDEO_READ);
3087 /* stop vbi capture */
3088 if (check_btres(fh, RESOURCE_VBI)) {
3089 videobuf_stop(&fh->vbi);
3090 free_btres_lock(btv,fh,RESOURCE_VBI);
3095 videobuf_mmap_free(&fh->cap);
3096 videobuf_mmap_free(&fh->vbi);
3097 file->private_data = NULL;
3100 bttv_field_count(btv);
3103 audio_mute(btv, btv->mute);
3105 v4l2_fh_del(&fh->fh);
3106 v4l2_fh_exit(&fh->fh);
3112 bttv_mmap(struct file *file, struct vm_area_struct *vma)
3114 struct bttv_fh *fh = file->private_data;
3116 dprintk("%d: mmap type=%s 0x%lx+%ld\n",
3117 fh->btv->c.nr, v4l2_type_names[fh->type],
3118 vma->vm_start, vma->vm_end - vma->vm_start);
3119 return videobuf_mmap_mapper(bttv_queue(fh),vma);
3122 static const struct v4l2_file_operations bttv_fops =
3124 .owner = THIS_MODULE,
3126 .release = bttv_release,
3127 .unlocked_ioctl = video_ioctl2,
3133 static const struct v4l2_ioctl_ops bttv_ioctl_ops = {
3134 .vidioc_querycap = bttv_querycap,
3135 .vidioc_enum_fmt_vid_cap = bttv_enum_fmt_vid_cap,
3136 .vidioc_g_fmt_vid_cap = bttv_g_fmt_vid_cap,
3137 .vidioc_try_fmt_vid_cap = bttv_try_fmt_vid_cap,
3138 .vidioc_s_fmt_vid_cap = bttv_s_fmt_vid_cap,
3139 .vidioc_enum_fmt_vid_overlay = bttv_enum_fmt_vid_overlay,
3140 .vidioc_g_fmt_vid_overlay = bttv_g_fmt_vid_overlay,
3141 .vidioc_try_fmt_vid_overlay = bttv_try_fmt_vid_overlay,
3142 .vidioc_s_fmt_vid_overlay = bttv_s_fmt_vid_overlay,
3143 .vidioc_g_fmt_vbi_cap = bttv_g_fmt_vbi_cap,
3144 .vidioc_try_fmt_vbi_cap = bttv_try_fmt_vbi_cap,
3145 .vidioc_s_fmt_vbi_cap = bttv_s_fmt_vbi_cap,
3146 .vidioc_cropcap = bttv_cropcap,
3147 .vidioc_reqbufs = bttv_reqbufs,
3148 .vidioc_querybuf = bttv_querybuf,
3149 .vidioc_qbuf = bttv_qbuf,
3150 .vidioc_dqbuf = bttv_dqbuf,
3151 .vidioc_s_std = bttv_s_std,
3152 .vidioc_g_std = bttv_g_std,
3153 .vidioc_enum_input = bttv_enum_input,
3154 .vidioc_g_input = bttv_g_input,
3155 .vidioc_s_input = bttv_s_input,
3156 .vidioc_streamon = bttv_streamon,
3157 .vidioc_streamoff = bttv_streamoff,
3158 .vidioc_g_tuner = bttv_g_tuner,
3159 .vidioc_s_tuner = bttv_s_tuner,
3160 .vidioc_g_crop = bttv_g_crop,
3161 .vidioc_s_crop = bttv_s_crop,
3162 .vidioc_g_fbuf = bttv_g_fbuf,
3163 .vidioc_s_fbuf = bttv_s_fbuf,
3164 .vidioc_overlay = bttv_overlay,
3165 .vidioc_g_parm = bttv_g_parm,
3166 .vidioc_g_frequency = bttv_g_frequency,
3167 .vidioc_s_frequency = bttv_s_frequency,
3168 .vidioc_log_status = bttv_log_status,
3169 .vidioc_querystd = bttv_querystd,
3170 .vidioc_subscribe_event = v4l2_ctrl_subscribe_event,
3171 .vidioc_unsubscribe_event = v4l2_event_unsubscribe,
3172 #ifdef CONFIG_VIDEO_ADV_DEBUG
3173 .vidioc_g_register = bttv_g_register,
3174 .vidioc_s_register = bttv_s_register,
3178 static struct video_device bttv_video_template = {
3180 .ioctl_ops = &bttv_ioctl_ops,
3181 .tvnorms = BTTV_NORMS,
3184 /* ----------------------------------------------------------------------- */
3185 /* radio interface */
3187 static int radio_open(struct file *file)
3189 struct video_device *vdev = video_devdata(file);
3190 struct bttv *btv = video_drvdata(file);
3193 dprintk("open dev=%s\n", video_device_node_name(vdev));
3195 dprintk("%d: open called (radio)\n", btv->c.nr);
3197 /* allocate per filehandle data */
3198 fh = kmalloc(sizeof(*fh), GFP_KERNEL);
3201 file->private_data = fh;
3203 v4l2_fh_init(&fh->fh, vdev);
3206 audio_mute(btv, btv->mute);
3208 v4l2_fh_add(&fh->fh);
3213 static int radio_release(struct file *file)
3215 struct bttv_fh *fh = file->private_data;
3216 struct bttv *btv = fh->btv;
3217 struct saa6588_command cmd;
3219 file->private_data = NULL;
3220 v4l2_fh_del(&fh->fh);
3221 v4l2_fh_exit(&fh->fh);
3226 bttv_call_all(btv, core, ioctl, SAA6588_CMD_CLOSE, &cmd);
3228 if (btv->radio_user == 0)
3229 btv->has_radio_tuner = 0;
3233 static int radio_g_tuner(struct file *file, void *priv, struct v4l2_tuner *t)
3235 struct bttv_fh *fh = priv;
3236 struct bttv *btv = fh->btv;
3240 strcpy(t->name, "Radio");
3241 t->type = V4L2_TUNER_RADIO;
3244 bttv_call_all(btv, tuner, g_tuner, t);
3246 if (btv->audio_mode_gpio)
3247 btv->audio_mode_gpio(btv, t, 0);
3249 if (btv->has_tea575x)
3250 return snd_tea575x_g_tuner(&btv->tea, t);
3255 static int radio_s_tuner(struct file *file, void *priv,
3256 const struct v4l2_tuner *t)
3258 struct bttv_fh *fh = priv;
3259 struct bttv *btv = fh->btv;
3265 bttv_call_all(btv, tuner, s_tuner, t);
3269 static int radio_s_hw_freq_seek(struct file *file, void *priv,
3270 const struct v4l2_hw_freq_seek *a)
3272 struct bttv_fh *fh = priv;
3273 struct bttv *btv = fh->btv;
3275 if (btv->has_tea575x)
3276 return snd_tea575x_s_hw_freq_seek(file, &btv->tea, a);
3281 static int radio_enum_freq_bands(struct file *file, void *priv,
3282 struct v4l2_frequency_band *band)
3284 struct bttv_fh *fh = priv;
3285 struct bttv *btv = fh->btv;
3287 if (btv->has_tea575x)
3288 return snd_tea575x_enum_freq_bands(&btv->tea, band);
3293 static ssize_t radio_read(struct file *file, char __user *data,
3294 size_t count, loff_t *ppos)
3296 struct bttv_fh *fh = file->private_data;
3297 struct bttv *btv = fh->btv;
3298 struct saa6588_command cmd;
3300 cmd.block_count = count / 3;
3301 cmd.nonblocking = file->f_flags & O_NONBLOCK;
3303 cmd.instance = file;
3304 cmd.result = -ENODEV;
3307 bttv_call_all(btv, core, ioctl, SAA6588_CMD_READ, &cmd);
3312 static unsigned int radio_poll(struct file *file, poll_table *wait)
3314 struct bttv_fh *fh = file->private_data;
3315 struct bttv *btv = fh->btv;
3316 unsigned long req_events = poll_requested_events(wait);
3317 struct saa6588_command cmd;
3318 unsigned int res = 0;
3320 if (v4l2_event_pending(&fh->fh))
3322 else if (req_events & POLLPRI)
3323 poll_wait(file, &fh->fh.wait, wait);
3325 cmd.instance = file;
3326 cmd.event_list = wait;
3328 bttv_call_all(btv, core, ioctl, SAA6588_CMD_POLL, &cmd);
3333 static const struct v4l2_file_operations radio_fops =
3335 .owner = THIS_MODULE,
3338 .release = radio_release,
3339 .unlocked_ioctl = video_ioctl2,
3343 static const struct v4l2_ioctl_ops radio_ioctl_ops = {
3344 .vidioc_querycap = bttv_querycap,
3345 .vidioc_log_status = bttv_log_status,
3346 .vidioc_g_tuner = radio_g_tuner,
3347 .vidioc_s_tuner = radio_s_tuner,
3348 .vidioc_g_frequency = bttv_g_frequency,
3349 .vidioc_s_frequency = bttv_s_frequency,
3350 .vidioc_s_hw_freq_seek = radio_s_hw_freq_seek,
3351 .vidioc_enum_freq_bands = radio_enum_freq_bands,
3352 .vidioc_subscribe_event = v4l2_ctrl_subscribe_event,
3353 .vidioc_unsubscribe_event = v4l2_event_unsubscribe,
3356 static struct video_device radio_template = {
3357 .fops = &radio_fops,
3358 .ioctl_ops = &radio_ioctl_ops,
3361 /* ----------------------------------------------------------------------- */
3362 /* some debug code */
3364 static int bttv_risc_decode(u32 risc)
3366 static char *instr[16] = {
3367 [ BT848_RISC_WRITE >> 28 ] = "write",
3368 [ BT848_RISC_SKIP >> 28 ] = "skip",
3369 [ BT848_RISC_WRITEC >> 28 ] = "writec",
3370 [ BT848_RISC_JUMP >> 28 ] = "jump",
3371 [ BT848_RISC_SYNC >> 28 ] = "sync",
3372 [ BT848_RISC_WRITE123 >> 28 ] = "write123",
3373 [ BT848_RISC_SKIP123 >> 28 ] = "skip123",
3374 [ BT848_RISC_WRITE1S23 >> 28 ] = "write1s23",
3376 static int incr[16] = {
3377 [ BT848_RISC_WRITE >> 28 ] = 2,
3378 [ BT848_RISC_JUMP >> 28 ] = 2,
3379 [ BT848_RISC_SYNC >> 28 ] = 2,
3380 [ BT848_RISC_WRITE123 >> 28 ] = 5,
3381 [ BT848_RISC_SKIP123 >> 28 ] = 2,
3382 [ BT848_RISC_WRITE1S23 >> 28 ] = 3,
3384 static char *bits[] = {
3385 "be0", "be1", "be2", "be3/resync",
3386 "set0", "set1", "set2", "set3",
3387 "clr0", "clr1", "clr2", "clr3",
3388 "irq", "res", "eol", "sol",
3392 pr_cont("0x%08x [ %s", risc,
3393 instr[risc >> 28] ? instr[risc >> 28] : "INVALID");
3394 for (i = ARRAY_SIZE(bits)-1; i >= 0; i--)
3395 if (risc & (1 << (i + 12)))
3396 pr_cont(" %s", bits[i]);
3397 pr_cont(" count=%d ]\n", risc & 0xfff);
3398 return incr[risc >> 28] ? incr[risc >> 28] : 1;
3401 static void bttv_risc_disasm(struct bttv *btv,
3402 struct btcx_riscmem *risc)
3406 pr_info("%s: risc disasm: %p [dma=0x%08lx]\n",
3407 btv->c.v4l2_dev.name, risc->cpu, (unsigned long)risc->dma);
3408 for (i = 0; i < (risc->size >> 2); i += n) {
3409 pr_info("%s: 0x%lx: ",
3410 btv->c.v4l2_dev.name,
3411 (unsigned long)(risc->dma + (i<<2)));
3412 n = bttv_risc_decode(le32_to_cpu(risc->cpu[i]));
3413 for (j = 1; j < n; j++)
3414 pr_info("%s: 0x%lx: 0x%08x [ arg #%d ]\n",
3415 btv->c.v4l2_dev.name,
3416 (unsigned long)(risc->dma + ((i+j)<<2)),
3418 if (0 == risc->cpu[i])
3423 static void bttv_print_riscaddr(struct bttv *btv)
3425 pr_info(" main: %08llx\n", (unsigned long long)btv->main.dma);
3426 pr_info(" vbi : o=%08llx e=%08llx\n",
3427 btv->cvbi ? (unsigned long long)btv->cvbi->top.dma : 0,
3428 btv->cvbi ? (unsigned long long)btv->cvbi->bottom.dma : 0);
3429 pr_info(" cap : o=%08llx e=%08llx\n",
3431 ? (unsigned long long)btv->curr.top->top.dma : 0,
3433 ? (unsigned long long)btv->curr.bottom->bottom.dma : 0);
3434 pr_info(" scr : o=%08llx e=%08llx\n",
3435 btv->screen ? (unsigned long long)btv->screen->top.dma : 0,
3436 btv->screen ? (unsigned long long)btv->screen->bottom.dma : 0);
3437 bttv_risc_disasm(btv, &btv->main);
3440 /* ----------------------------------------------------------------------- */
3443 static char *irq_name[] = {
3444 "FMTCHG", // format change detected (525 vs. 625)
3445 "VSYNC", // vertical sync (new field)
3446 "HSYNC", // horizontal sync
3447 "OFLOW", // chroma/luma AGC overflow
3448 "HLOCK", // horizontal lock changed
3449 "VPRES", // video presence changed
3451 "I2CDONE", // hw irc operation finished
3452 "GPINT", // gpio port triggered irq
3454 "RISCI", // risc instruction triggered irq
3455 "FBUS", // pixel data fifo dropped data (high pci bus latencies)
3456 "FTRGT", // pixel data fifo overrun
3457 "FDSR", // fifo data stream resyncronisation
3458 "PPERR", // parity error (data transfer)
3459 "RIPERR", // parity error (read risc instructions)
3460 "PABORT", // pci abort
3461 "OCERR", // risc instruction error
3462 "SCERR", // syncronisation error
3465 static void bttv_print_irqbits(u32 print, u32 mark)
3470 for (i = 0; i < ARRAY_SIZE(irq_name); i++) {
3471 if (print & (1 << i))
3472 pr_cont(" %s", irq_name[i]);
3473 if (mark & (1 << i))
3478 static void bttv_irq_debug_low_latency(struct bttv *btv, u32 rc)
3480 pr_warn("%d: irq: skipped frame [main=%lx,o_vbi=%lx,o_field=%lx,rc=%lx]\n",
3482 (unsigned long)btv->main.dma,
3483 (unsigned long)le32_to_cpu(btv->main.cpu[RISC_SLOT_O_VBI+1]),
3484 (unsigned long)le32_to_cpu(btv->main.cpu[RISC_SLOT_O_FIELD+1]),
3487 if (0 == (btread(BT848_DSTATUS) & BT848_DSTATUS_HLOC)) {
3488 pr_notice("%d: Oh, there (temporarily?) is no input signal. "
3489 "Ok, then this is harmless, don't worry ;)\n",
3493 pr_notice("%d: Uhm. Looks like we have unusual high IRQ latencies\n",
3495 pr_notice("%d: Lets try to catch the culpit red-handed ...\n",
3501 bttv_irq_next_video(struct bttv *btv, struct bttv_buffer_set *set)
3503 struct bttv_buffer *item;
3505 memset(set,0,sizeof(*set));
3507 /* capture request ? */
3508 if (!list_empty(&btv->capture)) {
3510 item = list_entry(btv->capture.next, struct bttv_buffer, vb.queue);
3511 if (V4L2_FIELD_HAS_TOP(item->vb.field))
3513 if (V4L2_FIELD_HAS_BOTTOM(item->vb.field))
3516 /* capture request for other field ? */
3517 if (!V4L2_FIELD_HAS_BOTH(item->vb.field) &&
3518 (item->vb.queue.next != &btv->capture)) {
3519 item = list_entry(item->vb.queue.next, struct bttv_buffer, vb.queue);
3520 /* Mike Isely <isely@pobox.com> - Only check
3521 * and set up the bottom field in the logic
3522 * below. Don't ever do the top field. This
3523 * of course means that if we set up the
3524 * bottom field in the above code that we'll
3525 * actually skip a field. But that's OK.
3526 * Having processed only a single buffer this
3527 * time, then the next time around the first
3528 * available buffer should be for a top field.
3529 * That will then cause us here to set up a
3530 * top then a bottom field in the normal way.
3531 * The alternative to this understanding is
3532 * that we set up the second available buffer
3533 * as a top field, but that's out of order
3534 * since this driver always processes the top
3535 * field first - the effect will be the two
3536 * buffers being returned in the wrong order,
3537 * with the second buffer also being delayed
3538 * by one field time (owing to the fifo nature
3539 * of videobuf). Worse still, we'll be stuck
3540 * doing fields out of order now every time
3541 * until something else causes a field to be
3542 * dropped. By effectively forcing a field to
3543 * drop this way then we always get back into
3544 * sync within a single frame time. (Out of
3545 * order fields can screw up deinterlacing
3547 if (!V4L2_FIELD_HAS_BOTH(item->vb.field)) {
3548 if (NULL == set->bottom &&
3549 V4L2_FIELD_BOTTOM == item->vb.field) {
3552 if (NULL != set->top && NULL != set->bottom)
3558 /* screen overlay ? */
3559 if (NULL != btv->screen) {
3560 if (V4L2_FIELD_HAS_BOTH(btv->screen->vb.field)) {
3561 if (NULL == set->top && NULL == set->bottom) {
3562 set->top = btv->screen;
3563 set->bottom = btv->screen;
3566 if (V4L2_FIELD_TOP == btv->screen->vb.field &&
3568 set->top = btv->screen;
3570 if (V4L2_FIELD_BOTTOM == btv->screen->vb.field &&
3571 NULL == set->bottom) {
3572 set->bottom = btv->screen;
3577 dprintk("%d: next set: top=%p bottom=%p [screen=%p,irq=%d,%d]\n",
3578 btv->c.nr, set->top, set->bottom,
3579 btv->screen, set->frame_irq, set->top_irq);
3584 bttv_irq_wakeup_video(struct bttv *btv, struct bttv_buffer_set *wakeup,
3585 struct bttv_buffer_set *curr, unsigned int state)
3589 v4l2_get_timestamp(&ts);
3591 if (wakeup->top == wakeup->bottom) {
3592 if (NULL != wakeup->top && curr->top != wakeup->top) {
3594 pr_debug("%d: wakeup: both=%p\n",
3595 btv->c.nr, wakeup->top);
3596 wakeup->top->vb.ts = ts;
3597 wakeup->top->vb.field_count = btv->field_count;
3598 wakeup->top->vb.state = state;
3599 wake_up(&wakeup->top->vb.done);
3602 if (NULL != wakeup->top && curr->top != wakeup->top) {
3604 pr_debug("%d: wakeup: top=%p\n",
3605 btv->c.nr, wakeup->top);
3606 wakeup->top->vb.ts = ts;
3607 wakeup->top->vb.field_count = btv->field_count;
3608 wakeup->top->vb.state = state;
3609 wake_up(&wakeup->top->vb.done);
3611 if (NULL != wakeup->bottom && curr->bottom != wakeup->bottom) {
3613 pr_debug("%d: wakeup: bottom=%p\n",
3614 btv->c.nr, wakeup->bottom);
3615 wakeup->bottom->vb.ts = ts;
3616 wakeup->bottom->vb.field_count = btv->field_count;
3617 wakeup->bottom->vb.state = state;
3618 wake_up(&wakeup->bottom->vb.done);
3624 bttv_irq_wakeup_vbi(struct bttv *btv, struct bttv_buffer *wakeup,
3632 v4l2_get_timestamp(&ts);
3634 wakeup->vb.field_count = btv->field_count;
3635 wakeup->vb.state = state;
3636 wake_up(&wakeup->vb.done);
3639 static void bttv_irq_timeout(unsigned long data)
3641 struct bttv *btv = (struct bttv *)data;
3642 struct bttv_buffer_set old,new;
3643 struct bttv_buffer *ovbi;
3644 struct bttv_buffer *item;
3645 unsigned long flags;
3648 pr_info("%d: timeout: drop=%d irq=%d/%d, risc=%08x, ",
3649 btv->c.nr, btv->framedrop, btv->irq_me, btv->irq_total,
3650 btread(BT848_RISC_COUNT));
3651 bttv_print_irqbits(btread(BT848_INT_STAT),0);
3655 spin_lock_irqsave(&btv->s_lock,flags);
3657 /* deactivate stuff */
3658 memset(&new,0,sizeof(new));
3664 bttv_buffer_activate_video(btv, &new);
3665 bttv_buffer_activate_vbi(btv, NULL);
3666 bttv_set_dma(btv, 0);
3669 bttv_irq_wakeup_video(btv, &old, &new, VIDEOBUF_ERROR);
3670 bttv_irq_wakeup_vbi(btv, ovbi, VIDEOBUF_ERROR);
3672 /* cancel all outstanding capture / vbi requests */
3673 while (!list_empty(&btv->capture)) {
3674 item = list_entry(btv->capture.next, struct bttv_buffer, vb.queue);
3675 list_del(&item->vb.queue);
3676 item->vb.state = VIDEOBUF_ERROR;
3677 wake_up(&item->vb.done);
3679 while (!list_empty(&btv->vcapture)) {
3680 item = list_entry(btv->vcapture.next, struct bttv_buffer, vb.queue);
3681 list_del(&item->vb.queue);
3682 item->vb.state = VIDEOBUF_ERROR;
3683 wake_up(&item->vb.done);
3687 spin_unlock_irqrestore(&btv->s_lock,flags);
3691 bttv_irq_wakeup_top(struct bttv *btv)
3693 struct bttv_buffer *wakeup = btv->curr.top;
3698 spin_lock(&btv->s_lock);
3699 btv->curr.top_irq = 0;
3700 btv->curr.top = NULL;
3701 bttv_risc_hook(btv, RISC_SLOT_O_FIELD, NULL, 0);
3703 v4l2_get_timestamp(&wakeup->vb.ts);
3704 wakeup->vb.field_count = btv->field_count;
3705 wakeup->vb.state = VIDEOBUF_DONE;
3706 wake_up(&wakeup->vb.done);
3707 spin_unlock(&btv->s_lock);
3710 static inline int is_active(struct btcx_riscmem *risc, u32 rc)
3714 if (rc > risc->dma + risc->size)
3720 bttv_irq_switch_video(struct bttv *btv)
3722 struct bttv_buffer_set new;
3723 struct bttv_buffer_set old;
3726 spin_lock(&btv->s_lock);
3728 /* new buffer set */
3729 bttv_irq_next_video(btv, &new);
3730 rc = btread(BT848_RISC_COUNT);
3731 if ((btv->curr.top && is_active(&btv->curr.top->top, rc)) ||
3732 (btv->curr.bottom && is_active(&btv->curr.bottom->bottom, rc))) {
3735 bttv_irq_debug_low_latency(btv, rc);
3736 spin_unlock(&btv->s_lock);
3743 btv->loop_irq &= ~1;
3744 bttv_buffer_activate_video(btv, &new);
3745 bttv_set_dma(btv, 0);
3748 if (UNSET != btv->new_input) {
3749 video_mux(btv,btv->new_input);
3750 btv->new_input = UNSET;
3753 /* wake up finished buffers */
3754 bttv_irq_wakeup_video(btv, &old, &new, VIDEOBUF_DONE);
3755 spin_unlock(&btv->s_lock);
3759 bttv_irq_switch_vbi(struct bttv *btv)
3761 struct bttv_buffer *new = NULL;
3762 struct bttv_buffer *old;
3765 spin_lock(&btv->s_lock);
3767 if (!list_empty(&btv->vcapture))
3768 new = list_entry(btv->vcapture.next, struct bttv_buffer, vb.queue);
3771 rc = btread(BT848_RISC_COUNT);
3772 if (NULL != old && (is_active(&old->top, rc) ||
3773 is_active(&old->bottom, rc))) {
3776 bttv_irq_debug_low_latency(btv, rc);
3777 spin_unlock(&btv->s_lock);
3783 btv->loop_irq &= ~4;
3784 bttv_buffer_activate_vbi(btv, new);
3785 bttv_set_dma(btv, 0);
3787 bttv_irq_wakeup_vbi(btv, old, VIDEOBUF_DONE);
3788 spin_unlock(&btv->s_lock);
3791 static irqreturn_t bttv_irq(int irq, void *dev_id)
3799 btv=(struct bttv *)dev_id;
3803 /* get/clear interrupt status bits */
3804 stat=btread(BT848_INT_STAT);
3805 astat=stat&btread(BT848_INT_MASK);
3809 btwrite(stat,BT848_INT_STAT);
3811 /* get device status bits */
3812 dstat=btread(BT848_DSTATUS);
3815 pr_debug("%d: irq loop=%d fc=%d riscs=%x, riscc=%08x, ",
3816 btv->c.nr, count, btv->field_count,
3817 stat>>28, btread(BT848_RISC_COUNT));
3818 bttv_print_irqbits(stat,astat);
3819 if (stat & BT848_INT_HLOCK)
3820 pr_cont(" HLOC => %s",
3821 dstat & BT848_DSTATUS_HLOC
3823 if (stat & BT848_INT_VPRES)
3824 pr_cont(" PRES => %s",
3825 dstat & BT848_DSTATUS_PRES
3827 if (stat & BT848_INT_FMTCHG)
3828 pr_cont(" NUML => %s",
3829 dstat & BT848_DSTATUS_NUML
3834 if (astat&BT848_INT_VSYNC)
3837 if ((astat & BT848_INT_GPINT) && btv->remote) {
3838 bttv_input_irq(btv);
3841 if (astat & BT848_INT_I2CDONE) {
3842 btv->i2c_done = stat;
3843 wake_up(&btv->i2c_queue);
3846 if ((astat & BT848_INT_RISCI) && (stat & (4<<28)))
3847 bttv_irq_switch_vbi(btv);
3849 if ((astat & BT848_INT_RISCI) && (stat & (2<<28)))
3850 bttv_irq_wakeup_top(btv);
3852 if ((astat & BT848_INT_RISCI) && (stat & (1<<28)))
3853 bttv_irq_switch_video(btv);
3855 if ((astat & BT848_INT_HLOCK) && btv->opt_automute)
3856 /* trigger automute */
3857 audio_mux_gpio(btv, btv->audio_input, btv->mute);
3859 if (astat & (BT848_INT_SCERR|BT848_INT_OCERR)) {
3860 pr_info("%d: %s%s @ %08x,",
3862 (astat & BT848_INT_SCERR) ? "SCERR" : "",
3863 (astat & BT848_INT_OCERR) ? "OCERR" : "",
3864 btread(BT848_RISC_COUNT));
3865 bttv_print_irqbits(stat,astat);
3868 bttv_print_riscaddr(btv);
3870 if (fdsr && astat & BT848_INT_FDSR) {
3871 pr_info("%d: FDSR @ %08x\n",
3872 btv->c.nr, btread(BT848_RISC_COUNT));
3874 bttv_print_riscaddr(btv);
3880 if (count > 8 || !(astat & BT848_INT_GPINT)) {
3881 btwrite(0, BT848_INT_MASK);
3883 pr_err("%d: IRQ lockup, cleared int mask [",
3886 pr_err("%d: IRQ lockup, clearing GPINT from int mask [",
3889 btwrite(btread(BT848_INT_MASK) & (-1 ^ BT848_INT_GPINT),
3893 bttv_print_irqbits(stat,astat);
3901 return IRQ_RETVAL(handled);
3905 /* ----------------------------------------------------------------------- */
3906 /* initialization */
3908 static void vdev_init(struct bttv *btv,
3909 struct video_device *vfd,
3910 const struct video_device *template,
3911 const char *type_name)
3914 vfd->v4l2_dev = &btv->c.v4l2_dev;
3915 vfd->release = video_device_release_empty;
3916 video_set_drvdata(vfd, btv);
3917 snprintf(vfd->name, sizeof(vfd->name), "BT%d%s %s (%s)",
3918 btv->id, (btv->id==848 && btv->revision==0x12) ? "A" : "",
3919 type_name, bttv_tvcards[btv->c.type].name);
3920 if (btv->tuner_type == TUNER_ABSENT) {
3921 v4l2_disable_ioctl(vfd, VIDIOC_G_FREQUENCY);
3922 v4l2_disable_ioctl(vfd, VIDIOC_S_FREQUENCY);
3923 v4l2_disable_ioctl(vfd, VIDIOC_G_TUNER);
3924 v4l2_disable_ioctl(vfd, VIDIOC_S_TUNER);
3928 static void bttv_unregister_video(struct bttv *btv)
3930 video_unregister_device(&btv->video_dev);
3931 video_unregister_device(&btv->vbi_dev);
3932 video_unregister_device(&btv->radio_dev);
3935 /* register video4linux devices */
3936 static int bttv_register_video(struct bttv *btv)
3939 pr_notice("Overlay support disabled\n");
3942 vdev_init(btv, &btv->video_dev, &bttv_video_template, "video");
3944 if (video_register_device(&btv->video_dev, VFL_TYPE_GRABBER,
3945 video_nr[btv->c.nr]) < 0)
3947 pr_info("%d: registered device %s\n",
3948 btv->c.nr, video_device_node_name(&btv->video_dev));
3949 if (device_create_file(&btv->video_dev.dev,
3950 &dev_attr_card)<0) {
3951 pr_err("%d: device_create_file 'card' failed\n", btv->c.nr);
3956 vdev_init(btv, &btv->vbi_dev, &bttv_video_template, "vbi");
3958 if (video_register_device(&btv->vbi_dev, VFL_TYPE_VBI,
3959 vbi_nr[btv->c.nr]) < 0)
3961 pr_info("%d: registered device %s\n",
3962 btv->c.nr, video_device_node_name(&btv->vbi_dev));
3964 if (!btv->has_radio)
3967 vdev_init(btv, &btv->radio_dev, &radio_template, "radio");
3968 btv->radio_dev.ctrl_handler = &btv->radio_ctrl_handler;
3969 if (video_register_device(&btv->radio_dev, VFL_TYPE_RADIO,
3970 radio_nr[btv->c.nr]) < 0)
3972 pr_info("%d: registered device %s\n",
3973 btv->c.nr, video_device_node_name(&btv->radio_dev));
3979 bttv_unregister_video(btv);
3984 /* on OpenFirmware machines (PowerMac at least), PCI memory cycle */
3985 /* response on cards with no firmware is not enabled by OF */
3986 static void pci_set_command(struct pci_dev *dev)
3988 #if defined(__powerpc__)
3991 pci_read_config_dword(dev, PCI_COMMAND, &cmd);
3992 cmd = (cmd | PCI_COMMAND_MEMORY );
3993 pci_write_config_dword(dev, PCI_COMMAND, cmd);
3997 static int bttv_probe(struct pci_dev *dev, const struct pci_device_id *pci_id)
3999 struct v4l2_frequency init_freq = {
4001 .type = V4L2_TUNER_ANALOG_TV,
4007 struct v4l2_ctrl_handler *hdl;
4009 if (bttv_num == BTTV_MAX)
4011 pr_info("Bt8xx card found (%d)\n", bttv_num);
4012 bttvs[bttv_num] = btv = kzalloc(sizeof(*btv), GFP_KERNEL);
4014 pr_err("out of memory\n");
4017 btv->c.nr = bttv_num;
4018 snprintf(btv->c.v4l2_dev.name, sizeof(btv->c.v4l2_dev.name),
4019 "bttv%d", btv->c.nr);
4021 /* initialize structs / fill in defaults */
4022 mutex_init(&btv->lock);
4023 spin_lock_init(&btv->s_lock);
4024 spin_lock_init(&btv->gpio_lock);
4025 init_waitqueue_head(&btv->i2c_queue);
4026 INIT_LIST_HEAD(&btv->c.subs);
4027 INIT_LIST_HEAD(&btv->capture);
4028 INIT_LIST_HEAD(&btv->vcapture);
4030 init_timer(&btv->timeout);
4031 btv->timeout.function = bttv_irq_timeout;
4032 btv->timeout.data = (unsigned long)btv;
4035 btv->tuner_type = UNSET;
4036 btv->new_input = UNSET;
4037 btv->has_radio=radio[btv->c.nr];
4039 /* pci stuff (init, get irq/mmio, ... */
4041 btv->id = dev->device;
4042 if (pci_enable_device(dev)) {
4043 pr_warn("%d: Can't enable device\n", btv->c.nr);
4046 if (pci_set_dma_mask(dev, DMA_BIT_MASK(32))) {
4047 pr_warn("%d: No suitable DMA available\n", btv->c.nr);
4050 if (!request_mem_region(pci_resource_start(dev,0),
4051 pci_resource_len(dev,0),
4052 btv->c.v4l2_dev.name)) {
4053 pr_warn("%d: can't request iomem (0x%llx)\n",
4055 (unsigned long long)pci_resource_start(dev, 0));
4058 pci_set_master(dev);
4059 pci_set_command(dev);
4061 result = v4l2_device_register(&dev->dev, &btv->c.v4l2_dev);
4063 pr_warn("%d: v4l2_device_register() failed\n", btv->c.nr);
4066 hdl = &btv->ctrl_handler;
4067 v4l2_ctrl_handler_init(hdl, 20);
4068 btv->c.v4l2_dev.ctrl_handler = hdl;
4069 v4l2_ctrl_handler_init(&btv->radio_ctrl_handler, 6);
4071 btv->revision = dev->revision;
4072 pci_read_config_byte(dev, PCI_LATENCY_TIMER, &lat);
4073 pr_info("%d: Bt%d (rev %d) at %s, irq: %d, latency: %d, mmio: 0x%llx\n",
4074 bttv_num, btv->id, btv->revision, pci_name(dev),
4075 btv->c.pci->irq, lat,
4076 (unsigned long long)pci_resource_start(dev, 0));
4079 btv->bt848_mmio = ioremap(pci_resource_start(dev, 0), 0x1000);
4080 if (NULL == btv->bt848_mmio) {
4081 pr_err("%d: ioremap() failed\n", btv->c.nr);
4089 /* disable irqs, register irq handler */
4090 btwrite(0, BT848_INT_MASK);
4091 result = request_irq(btv->c.pci->irq, bttv_irq,
4092 IRQF_SHARED, btv->c.v4l2_dev.name, (void *)btv);
4094 pr_err("%d: can't get IRQ %d\n",
4095 bttv_num, btv->c.pci->irq);
4099 if (0 != bttv_handle_chipset(btv)) {
4104 /* init options from insmod args */
4105 btv->opt_combfilter = combfilter;
4106 bttv_ctrl_combfilter.def = combfilter;
4107 bttv_ctrl_lumafilter.def = lumafilter;
4108 btv->opt_automute = automute;
4109 bttv_ctrl_automute.def = automute;
4110 bttv_ctrl_agc_crush.def = agc_crush;
4111 btv->opt_vcr_hack = vcr_hack;
4112 bttv_ctrl_vcr_hack.def = vcr_hack;
4113 bttv_ctrl_whitecrush_upper.def = whitecrush_upper;
4114 bttv_ctrl_whitecrush_lower.def = whitecrush_lower;
4115 btv->opt_uv_ratio = uv_ratio;
4116 bttv_ctrl_uv_ratio.def = uv_ratio;
4117 bttv_ctrl_full_luma.def = full_luma_range;
4118 bttv_ctrl_coring.def = coring;
4120 /* fill struct bttv with some useful defaults */
4121 btv->init.btv = btv;
4122 btv->init.ov.w.width = 320;
4123 btv->init.ov.w.height = 240;
4124 btv->init.fmt = format_by_fourcc(V4L2_PIX_FMT_BGR24);
4125 btv->init.width = 320;
4126 btv->init.height = 240;
4127 btv->init.ov.w.width = 320;
4128 btv->init.ov.w.height = 240;
4129 btv->init.ov.field = V4L2_FIELD_INTERLACED;
4132 v4l2_ctrl_new_std(hdl, &bttv_ctrl_ops,
4133 V4L2_CID_BRIGHTNESS, 0, 0xff00, 0x100, 32768);
4134 v4l2_ctrl_new_std(hdl, &bttv_ctrl_ops,
4135 V4L2_CID_CONTRAST, 0, 0xff80, 0x80, 0x6c00);
4136 v4l2_ctrl_new_std(hdl, &bttv_ctrl_ops,
4137 V4L2_CID_SATURATION, 0, 0xff80, 0x80, 32768);
4138 v4l2_ctrl_new_std(hdl, &bttv_ctrl_ops,
4139 V4L2_CID_COLOR_KILLER, 0, 1, 1, 0);
4140 v4l2_ctrl_new_std(hdl, &bttv_ctrl_ops,
4141 V4L2_CID_HUE, 0, 0xff00, 0x100, 32768);
4142 v4l2_ctrl_new_std(hdl, &bttv_ctrl_ops,
4143 V4L2_CID_CHROMA_AGC, 0, 1, 1, !!chroma_agc);
4144 v4l2_ctrl_new_std(hdl, &bttv_ctrl_ops,
4145 V4L2_CID_AUDIO_MUTE, 0, 1, 1, 0);
4146 if (btv->volume_gpio)
4147 v4l2_ctrl_new_std(hdl, &bttv_ctrl_ops,
4148 V4L2_CID_AUDIO_VOLUME, 0, 0xff00, 0x100, 0xff00);
4149 v4l2_ctrl_new_custom(hdl, &bttv_ctrl_combfilter, NULL);
4150 v4l2_ctrl_new_custom(hdl, &bttv_ctrl_automute, NULL);
4151 v4l2_ctrl_new_custom(hdl, &bttv_ctrl_lumafilter, NULL);
4152 v4l2_ctrl_new_custom(hdl, &bttv_ctrl_agc_crush, NULL);
4153 v4l2_ctrl_new_custom(hdl, &bttv_ctrl_vcr_hack, NULL);
4154 v4l2_ctrl_new_custom(hdl, &bttv_ctrl_whitecrush_lower, NULL);
4155 v4l2_ctrl_new_custom(hdl, &bttv_ctrl_whitecrush_upper, NULL);
4156 v4l2_ctrl_new_custom(hdl, &bttv_ctrl_uv_ratio, NULL);
4157 v4l2_ctrl_new_custom(hdl, &bttv_ctrl_full_luma, NULL);
4158 v4l2_ctrl_new_custom(hdl, &bttv_ctrl_coring, NULL);
4160 /* initialize hardware */
4162 bttv_gpio_tracking(btv,"pre-init");
4164 bttv_risc_init_main(btv);
4168 btwrite(0x00, BT848_GPIO_REG_INP);
4169 btwrite(0x00, BT848_GPIO_OUT_EN);
4171 bttv_gpio_tracking(btv,"init");
4173 /* needs to be done before i2c is registered */
4174 bttv_init_card1(btv);
4176 /* register i2c + gpio */
4179 /* some card-specific stuff (needs working i2c) */
4180 bttv_init_card2(btv);
4181 bttv_init_tuner(btv);
4182 if (btv->tuner_type != TUNER_ABSENT) {
4183 bttv_set_frequency(btv, &init_freq);
4184 btv->radio_freq = 90500 * 16; /* 90.5Mhz default */
4186 btv->std = V4L2_STD_PAL;
4188 if (!bttv_tvcards[btv->c.type].no_video)
4189 v4l2_ctrl_handler_setup(hdl);
4191 result = hdl->error;
4197 /* register video4linux + input */
4198 if (!bttv_tvcards[btv->c.type].no_video) {
4199 v4l2_ctrl_add_handler(&btv->radio_ctrl_handler, hdl,
4200 v4l2_ctrl_radio_filter);
4201 if (btv->radio_ctrl_handler.error) {
4202 result = btv->radio_ctrl_handler.error;
4205 set_input(btv, 0, btv->tvnorm);
4206 bttv_crop_reset(&btv->crop[0], btv->tvnorm);
4207 btv->crop[1] = btv->crop[0]; /* current = default */
4208 disclaim_vbi_lines(btv);
4209 disclaim_video_lines(btv);
4210 bttv_register_video(btv);
4213 /* add subdevices and autoload dvb-bt8xx if needed */
4214 if (bttv_tvcards[btv->c.type].has_dvb) {
4215 bttv_sub_add_device(&btv->c, "dvb");
4216 request_modules(btv);
4220 init_bttv_i2c_ir(btv);
4221 bttv_input_init(btv);
4224 /* everything is fine */
4229 free_irq(btv->c.pci->irq,btv);
4232 v4l2_ctrl_handler_free(&btv->ctrl_handler);
4233 v4l2_ctrl_handler_free(&btv->radio_ctrl_handler);
4234 v4l2_device_unregister(&btv->c.v4l2_dev);
4237 if (btv->bt848_mmio)
4238 iounmap(btv->bt848_mmio);
4239 release_mem_region(pci_resource_start(btv->c.pci,0),
4240 pci_resource_len(btv->c.pci,0));
4244 static void bttv_remove(struct pci_dev *pci_dev)
4246 struct v4l2_device *v4l2_dev = pci_get_drvdata(pci_dev);
4247 struct bttv *btv = to_bttv(v4l2_dev);
4250 pr_info("%d: unloading\n", btv->c.nr);
4252 if (bttv_tvcards[btv->c.type].has_dvb)
4253 flush_request_modules(btv);
4255 /* shutdown everything (DMA+IRQs) */
4256 btand(~15, BT848_GPIO_DMA_CTL);
4257 btwrite(0, BT848_INT_MASK);
4258 btwrite(~0x0, BT848_INT_STAT);
4259 btwrite(0x0, BT848_GPIO_OUT_EN);
4261 bttv_gpio_tracking(btv,"cleanup");
4263 /* tell gpio modules we are leaving ... */
4265 bttv_input_fini(btv);
4266 bttv_sub_del_devices(&btv->c);
4268 /* unregister i2c_bus + input */
4271 /* unregister video4linux */
4272 bttv_unregister_video(btv);
4274 /* free allocated memory */
4275 v4l2_ctrl_handler_free(&btv->ctrl_handler);
4276 v4l2_ctrl_handler_free(&btv->radio_ctrl_handler);
4277 btcx_riscmem_free(btv->c.pci,&btv->main);
4279 /* free resources */
4280 free_irq(btv->c.pci->irq,btv);
4281 iounmap(btv->bt848_mmio);
4282 release_mem_region(pci_resource_start(btv->c.pci,0),
4283 pci_resource_len(btv->c.pci,0));
4285 v4l2_device_unregister(&btv->c.v4l2_dev);
4286 bttvs[btv->c.nr] = NULL;
4293 static int bttv_suspend(struct pci_dev *pci_dev, pm_message_t state)
4295 struct v4l2_device *v4l2_dev = pci_get_drvdata(pci_dev);
4296 struct bttv *btv = to_bttv(v4l2_dev);
4297 struct bttv_buffer_set idle;
4298 unsigned long flags;
4300 dprintk("%d: suspend %d\n", btv->c.nr, state.event);
4302 /* stop dma + irqs */
4303 spin_lock_irqsave(&btv->s_lock,flags);
4304 memset(&idle, 0, sizeof(idle));
4305 btv->state.video = btv->curr;
4306 btv->state.vbi = btv->cvbi;
4307 btv->state.loop_irq = btv->loop_irq;
4310 bttv_buffer_activate_video(btv, &idle);
4311 bttv_buffer_activate_vbi(btv, NULL);
4312 bttv_set_dma(btv, 0);
4313 btwrite(0, BT848_INT_MASK);
4314 spin_unlock_irqrestore(&btv->s_lock,flags);
4316 /* save bt878 state */
4317 btv->state.gpio_enable = btread(BT848_GPIO_OUT_EN);
4318 btv->state.gpio_data = gpio_read();
4320 /* save pci state */
4321 pci_save_state(pci_dev);
4322 if (0 != pci_set_power_state(pci_dev, pci_choose_state(pci_dev, state))) {
4323 pci_disable_device(pci_dev);
4324 btv->state.disabled = 1;
4329 static int bttv_resume(struct pci_dev *pci_dev)
4331 struct v4l2_device *v4l2_dev = pci_get_drvdata(pci_dev);
4332 struct bttv *btv = to_bttv(v4l2_dev);
4333 unsigned long flags;
4336 dprintk("%d: resume\n", btv->c.nr);
4338 /* restore pci state */
4339 if (btv->state.disabled) {
4340 err=pci_enable_device(pci_dev);
4342 pr_warn("%d: Can't enable device\n", btv->c.nr);
4345 btv->state.disabled = 0;
4347 err=pci_set_power_state(pci_dev, PCI_D0);
4349 pci_disable_device(pci_dev);
4350 pr_warn("%d: Can't enable device\n", btv->c.nr);
4351 btv->state.disabled = 1;
4355 pci_restore_state(pci_dev);
4357 /* restore bt878 state */
4358 bttv_reinit_bt848(btv);
4359 gpio_inout(0xffffff, btv->state.gpio_enable);
4360 gpio_write(btv->state.gpio_data);
4363 spin_lock_irqsave(&btv->s_lock,flags);
4364 btv->curr = btv->state.video;
4365 btv->cvbi = btv->state.vbi;
4366 btv->loop_irq = btv->state.loop_irq;
4367 bttv_buffer_activate_video(btv, &btv->curr);
4368 bttv_buffer_activate_vbi(btv, btv->cvbi);
4369 bttv_set_dma(btv, 0);
4370 spin_unlock_irqrestore(&btv->s_lock,flags);
4375 static struct pci_device_id bttv_pci_tbl[] = {
4376 {PCI_VDEVICE(BROOKTREE, PCI_DEVICE_ID_BT848), 0},
4377 {PCI_VDEVICE(BROOKTREE, PCI_DEVICE_ID_BT849), 0},
4378 {PCI_VDEVICE(BROOKTREE, PCI_DEVICE_ID_BT878), 0},
4379 {PCI_VDEVICE(BROOKTREE, PCI_DEVICE_ID_BT879), 0},
4380 {PCI_VDEVICE(BROOKTREE, PCI_DEVICE_ID_FUSION879), 0},
4384 MODULE_DEVICE_TABLE(pci, bttv_pci_tbl);
4386 static struct pci_driver bttv_pci_driver = {
4388 .id_table = bttv_pci_tbl,
4389 .probe = bttv_probe,
4390 .remove = bttv_remove,
4392 .suspend = bttv_suspend,
4393 .resume = bttv_resume,
4397 static int __init bttv_init_module(void)
4403 pr_info("driver version %s loaded\n", BTTV_VERSION);
4404 if (gbuffers < 2 || gbuffers > VIDEO_MAX_FRAME)
4406 if (gbufsize > BTTV_MAX_FBUF)
4407 gbufsize = BTTV_MAX_FBUF;
4408 gbufsize = (gbufsize + PAGE_SIZE - 1) & PAGE_MASK;
4410 pr_info("using %d buffers with %dk (%d pages) each for capture\n",
4411 gbuffers, gbufsize >> 10, gbufsize >> PAGE_SHIFT);
4413 bttv_check_chipset();
4415 ret = bus_register(&bttv_sub_bus_type);
4417 pr_warn("bus_register error: %d\n", ret);
4420 ret = pci_register_driver(&bttv_pci_driver);
4422 bus_unregister(&bttv_sub_bus_type);
4427 static void __exit bttv_cleanup_module(void)
4429 pci_unregister_driver(&bttv_pci_driver);
4430 bus_unregister(&bttv_sub_bus_type);
4433 module_init(bttv_init_module);
4434 module_exit(bttv_cleanup_module);