diff options
| author | Mauro Carvalho Chehab <mchehab@redhat.com> | 2012-08-14 11:49:09 -0300 |
|---|---|---|
| committer | Mauro Carvalho Chehab <mchehab@redhat.com> | 2012-08-15 16:35:54 -0300 |
| commit | 68de959f773a1d49096835c411390bceff5d1549 (patch) | |
| tree | 99f48fd448c97981b1793f426e28df0d54d880bf /drivers/media/video/bt8xx/bttv-driver.c | |
| parent | 0aa77f6c2954896b132f8b6f2e9f063c52800913 (diff) | |
[media] bt8xx: move analog TV part to be together with DTV one
Signed-off-by: Mauro Carvalho Chehab <mchehab@redhat.com>
Diffstat (limited to 'drivers/media/video/bt8xx/bttv-driver.c')
| -rw-r--r-- | drivers/media/video/bt8xx/bttv-driver.c | 4630 |
1 files changed, 0 insertions, 4630 deletions
diff --git a/drivers/media/video/bt8xx/bttv-driver.c b/drivers/media/video/bt8xx/bttv-driver.c deleted file mode 100644 index b58ff87db77..00000000000 --- a/drivers/media/video/bt8xx/bttv-driver.c +++ /dev/null @@ -1,4630 +0,0 @@ -/* - - bttv - Bt848 frame grabber driver - - Copyright (C) 1996,97,98 Ralph Metzler <rjkm@thp.uni-koeln.de> - & Marcus Metzler <mocm@thp.uni-koeln.de> - (c) 1999-2002 Gerd Knorr <kraxel@bytesex.org> - - some v4l2 code lines are taken from Justin's bttv2 driver which is - (c) 2000 Justin Schoeman <justin@suntiger.ee.up.ac.za> - - V4L1 removal from: - (c) 2005-2006 Nickolay V. Shmyrev <nshmyrev@yandex.ru> - - Fixes to be fully V4L2 compliant by - (c) 2006 Mauro Carvalho Chehab <mchehab@infradead.org> - - Cropping and overscan support - Copyright (C) 2005, 2006 Michael H. Schimek <mschimek@gmx.at> - Sponsored by OPQ Systems AB - - This program is free software; you can redistribute it and/or modify - it under the terms of the GNU General Public License as published by - the Free Software Foundation; either version 2 of the License, or - (at your option) any later version. - - This program is distributed in the hope that it will be useful, - but WITHOUT ANY WARRANTY; without even the implied warranty of - MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the - GNU General Public License for more details. - - You should have received a copy of the GNU General Public License - along with this program; if not, write to the Free Software - Foundation, Inc., 675 Mass Ave, Cambridge, MA 02139, USA. -*/ - -#define pr_fmt(fmt) KBUILD_MODNAME ": " fmt - -#include <linux/init.h> -#include <linux/module.h> -#include <linux/delay.h> -#include <linux/slab.h> -#include <linux/errno.h> -#include <linux/fs.h> -#include <linux/kernel.h> -#include <linux/sched.h> -#include <linux/interrupt.h> -#include <linux/kdev_t.h> -#include "bttvp.h" -#include <media/v4l2-common.h> -#include <media/v4l2-ioctl.h> -#include <media/tvaudio.h> -#include <media/msp3400.h> - -#include <linux/dma-mapping.h> - -#include <asm/io.h> -#include <asm/byteorder.h> - -#include <media/saa6588.h> - -#define BTTV_VERSION "0.9.19" - -unsigned int bttv_num; /* number of Bt848s in use */ -struct bttv *bttvs[BTTV_MAX]; - -unsigned int bttv_debug; -unsigned int bttv_verbose = 1; -unsigned int bttv_gpio; - -/* config variables */ -#ifdef __BIG_ENDIAN -static unsigned int bigendian=1; -#else -static unsigned int bigendian; -#endif -static unsigned int radio[BTTV_MAX]; -static unsigned int irq_debug; -static unsigned int gbuffers = 8; -static unsigned int gbufsize = 0x208000; -static unsigned int reset_crop = 1; - -static int video_nr[BTTV_MAX] = { [0 ... (BTTV_MAX-1)] = -1 }; -static int radio_nr[BTTV_MAX] = { [0 ... (BTTV_MAX-1)] = -1 }; -static int vbi_nr[BTTV_MAX] = { [0 ... (BTTV_MAX-1)] = -1 }; -static int debug_latency; -static int disable_ir; - -static unsigned int fdsr; - -/* options */ -static unsigned int combfilter; -static unsigned int lumafilter; -static unsigned int automute = 1; -static unsigned int chroma_agc; -static unsigned int adc_crush = 1; -static unsigned int whitecrush_upper = 0xCF; -static unsigned int whitecrush_lower = 0x7F; -static unsigned int vcr_hack; -static unsigned int irq_iswitch; -static unsigned int uv_ratio = 50; -static unsigned int full_luma_range; -static unsigned int coring; - -/* API features (turn on/off stuff for testing) */ -static unsigned int v4l2 = 1; - -/* insmod args */ -module_param(bttv_verbose, int, 0644); -module_param(bttv_gpio, int, 0644); -module_param(bttv_debug, int, 0644); -module_param(irq_debug, int, 0644); -module_param(debug_latency, int, 0644); -module_param(disable_ir, int, 0444); - -module_param(fdsr, int, 0444); -module_param(gbuffers, int, 0444); -module_param(gbufsize, int, 0444); -module_param(reset_crop, int, 0444); - -module_param(v4l2, int, 0644); -module_param(bigendian, int, 0644); -module_param(irq_iswitch, int, 0644); -module_param(combfilter, int, 0444); -module_param(lumafilter, int, 0444); -module_param(automute, int, 0444); -module_param(chroma_agc, int, 0444); -module_param(adc_crush, int, 0444); -module_param(whitecrush_upper, int, 0444); -module_param(whitecrush_lower, int, 0444); -module_param(vcr_hack, int, 0444); -module_param(uv_ratio, int, 0444); -module_param(full_luma_range, int, 0444); -module_param(coring, int, 0444); - -module_param_array(radio, int, NULL, 0444); -module_param_array(video_nr, int, NULL, 0444); -module_param_array(radio_nr, int, NULL, 0444); -module_param_array(vbi_nr, int, NULL, 0444); - -MODULE_PARM_DESC(radio,"The TV card supports radio, default is 0 (no)"); -MODULE_PARM_DESC(bigendian,"byte order of the framebuffer, default is native endian"); -MODULE_PARM_DESC(bttv_verbose,"verbose startup messages, default is 1 (yes)"); -MODULE_PARM_DESC(bttv_gpio,"log gpio changes, default is 0 (no)"); -MODULE_PARM_DESC(bttv_debug,"debug messages, default is 0 (no)"); -MODULE_PARM_DESC(irq_debug,"irq handler debug messages, default is 0 (no)"); -MODULE_PARM_DESC(disable_ir, "disable infrared remote support"); -MODULE_PARM_DESC(gbuffers,"number of capture buffers. range 2-32, default 8"); -MODULE_PARM_DESC(gbufsize,"size of the capture buffers, default is 0x208000"); -MODULE_PARM_DESC(reset_crop,"reset cropping parameters at open(), default " - "is 1 (yes) for compatibility with older applications"); -MODULE_PARM_DESC(automute,"mute audio on bad/missing video signal, default is 1 (yes)"); -MODULE_PARM_DESC(chroma_agc,"enables the AGC of chroma signal, default is 0 (no)"); -MODULE_PARM_DESC(adc_crush,"enables the luminance ADC crush, default is 1 (yes)"); -MODULE_PARM_DESC(whitecrush_upper,"sets the white crush upper value, default is 207"); -MODULE_PARM_DESC(whitecrush_lower,"sets the white crush lower value, default is 127"); -MODULE_PARM_DESC(vcr_hack,"enables the VCR hack (improves synch on poor VCR tapes), default is 0 (no)"); -MODULE_PARM_DESC(irq_iswitch,"switch inputs in irq handler"); -MODULE_PARM_DESC(uv_ratio,"ratio between u and v gains, default is 50"); -MODULE_PARM_DESC(full_luma_range,"use the full luma range, default is 0 (no)"); -MODULE_PARM_DESC(coring,"set the luma coring level, default is 0 (no)"); -MODULE_PARM_DESC(video_nr, "video device numbers"); -MODULE_PARM_DESC(vbi_nr, "vbi device numbers"); -MODULE_PARM_DESC(radio_nr, "radio device numbers"); - -MODULE_DESCRIPTION("bttv - v4l/v4l2 driver module for bt848/878 based cards"); -MODULE_AUTHOR("Ralph Metzler & Marcus Metzler & Gerd Knorr"); -MODULE_LICENSE("GPL"); -MODULE_VERSION(BTTV_VERSION); - -/* ----------------------------------------------------------------------- */ -/* sysfs */ - -static ssize_t show_card(struct device *cd, - struct device_attribute *attr, char *buf) -{ - struct video_device *vfd = container_of(cd, struct video_device, dev); - struct bttv *btv = video_get_drvdata(vfd); - return sprintf(buf, "%d\n", btv ? btv->c.type : UNSET); -} -static DEVICE_ATTR(card, S_IRUGO, show_card, NULL); - -/* ----------------------------------------------------------------------- */ -/* dvb auto-load setup */ -#if defined(CONFIG_MODULES) && defined(MODULE) -static void request_module_async(struct work_struct *work) -{ - request_module("dvb-bt8xx"); -} - -static void request_modules(struct bttv *dev) -{ - INIT_WORK(&dev->request_module_wk, request_module_async); - schedule_work(&dev->request_module_wk); -} - -static void flush_request_modules(struct bttv *dev) -{ - flush_work_sync(&dev->request_module_wk); -} -#else -#define request_modules(dev) -#define flush_request_modules(dev) -#endif /* CONFIG_MODULES */ - - -/* ----------------------------------------------------------------------- */ -/* static data */ - -/* special timing tables from conexant... */ -static u8 SRAM_Table[][60] = -{ - /* PAL digital input over GPIO[7:0] */ - { - 45, // 45 bytes following - 0x36,0x11,0x01,0x00,0x90,0x02,0x05,0x10,0x04,0x16, - 0x12,0x05,0x11,0x00,0x04,0x12,0xC0,0x00,0x31,0x00, - 0x06,0x51,0x08,0x03,0x89,0x08,0x07,0xC0,0x44,0x00, - 0x81,0x01,0x01,0xA9,0x0D,0x02,0x02,0x50,0x03,0x37, - 0x37,0x00,0xAF,0x21,0x00 - }, - /* NTSC digital input over GPIO[7:0] */ - { - 51, // 51 bytes following - 0x0C,0xC0,0x00,0x00,0x90,0x02,0x03,0x10,0x03,0x06, - 0x10,0x04,0x12,0x12,0x05,0x02,0x13,0x04,0x19,0x00, - 0x04,0x39,0x00,0x06,0x59,0x08,0x03,0x83,0x08,0x07, - 0x03,0x50,0x00,0xC0,0x40,0x00,0x86,0x01,0x01,0xA6, - 0x0D,0x02,0x03,0x11,0x01,0x05,0x37,0x00,0xAC,0x21, - 0x00, - }, - // TGB_NTSC392 // quartzsight - // This table has been modified to be used for Fusion Rev D - { - 0x2A, // size of table = 42 - 0x06, 0x08, 0x04, 0x0a, 0xc0, 0x00, 0x18, 0x08, 0x03, 0x24, - 0x08, 0x07, 0x02, 0x90, 0x02, 0x08, 0x10, 0x04, 0x0c, 0x10, - 0x05, 0x2c, 0x11, 0x04, 0x55, 0x48, 0x00, 0x05, 0x50, 0x00, - 0xbf, 0x0c, 0x02, 0x2f, 0x3d, 0x00, 0x2f, 0x3f, 0x00, 0xc3, - 0x20, 0x00 - } -}; - -/* minhdelayx1 first video pixel we can capture on a line and - hdelayx1 start of active video, both relative to rising edge of - /HRESET pulse (0H) in 1 / fCLKx1. - swidth width of active video and - totalwidth total line width, both in 1 / fCLKx1. - sqwidth total line width in square pixels. - vdelay start of active video in 2 * field lines relative to - trailing edge of /VRESET pulse (VDELAY register). - sheight height of active video in 2 * field lines. - videostart0 ITU-R frame line number of the line corresponding - to vdelay in the first field. */ -#define CROPCAP(minhdelayx1, hdelayx1, swidth, totalwidth, sqwidth, \ - vdelay, sheight, videostart0) \ - .cropcap.bounds.left = minhdelayx1, \ - /* * 2 because vertically we count field lines times two, */ \ - /* e.g. 23 * 2 to 23 * 2 + 576 in PAL-BGHI defrect. */ \ - .cropcap.bounds.top = (videostart0) * 2 - (vdelay) + MIN_VDELAY, \ - /* 4 is a safety margin at the end of the line. */ \ - .cropcap.bounds.width = (totalwidth) - (minhdelayx1) - 4, \ - .cropcap.bounds.height = (sheight) + (vdelay) - MIN_VDELAY, \ - .cropcap.defrect.left = hdelayx1, \ - .cropcap.defrect.top = (videostart0) * 2, \ - .cropcap.defrect.width = swidth, \ - .cropcap.defrect.height = sheight, \ - .cropcap.pixelaspect.numerator = totalwidth, \ - .cropcap.pixelaspect.denominator = sqwidth, - -const struct bttv_tvnorm bttv_tvnorms[] = { - /* PAL-BDGHI */ - /* max. active video is actually 922, but 924 is divisible by 4 and 3! */ - /* actually, max active PAL with HSCALE=0 is 948, NTSC is 768 - nil */ - { - .v4l2_id = V4L2_STD_PAL, - .name = "PAL", - .Fsc = 35468950, - .swidth = 924, - .sheight = 576, - .totalwidth = 1135, - .adelay = 0x7f, - .bdelay = 0x72, - .iform = (BT848_IFORM_PAL_BDGHI|BT848_IFORM_XT1), - .scaledtwidth = 1135, - .hdelayx1 = 186, - .hactivex1 = 924, - .vdelay = 0x20, - .vbipack = 255, /* min (2048 / 4, 0x1ff) & 0xff */ - .sram = 0, - /* ITU-R frame line number of the first VBI line - we can capture, of the first and second field. - The last line is determined by cropcap.bounds. */ - .vbistart = { 7, 320 }, - CROPCAP(/* minhdelayx1 */ 68, - /* hdelayx1 */ 186, - /* Should be (768 * 1135 + 944 / 2) / 944. - cropcap.defrect is used for image width - checks, so we keep the old value 924. */ - /* swidth */ 924, - /* totalwidth */ 1135, - /* sqwidth */ 944, - /* vdelay */ 0x20, - /* sheight */ 576, - /* videostart0 */ 23) - /* bt878 (and bt848?) can capture another - line below active video. */ - .cropcap.bounds.height = (576 + 2) + 0x20 - 2, - },{ - .v4l2_id = V4L2_STD_NTSC_M | V4L2_STD_NTSC_M_KR, - .name = "NTSC", - .Fsc = 28636363, - .swidth = 768, - .sheight = 480, - .totalwidth = 910, - .adelay = 0x68, - .bdelay = 0x5d, - .iform = (BT848_IFORM_NTSC|BT848_IFORM_XT0), - .scaledtwidth = 910, - .hdelayx1 = 128, - .hactivex1 = 910, - .vdelay = 0x1a, - .vbipack = 144, /* min (1600 / 4, 0x1ff) & 0xff */ - .sram = 1, - .vbistart = { 10, 273 }, - CROPCAP(/* minhdelayx1 */ 68, - /* hdelayx1 */ 128, - /* Should be (640 * 910 + 780 / 2) / 780? */ - /* swidth */ 768, - /* totalwidth */ 910, - /* sqwidth */ 780, - /* vdelay */ 0x1a, - /* sheight */ 480, - /* videostart0 */ 23) - },{ - .v4l2_id = V4L2_STD_SECAM, - .name = "SECAM", - .Fsc = 35468950, - .swidth = 924, - .sheight = 576, - .totalwidth = 1135, - .adelay = 0x7f, - .bdelay = 0xb0, - .iform = (BT848_IFORM_SECAM|BT848_IFORM_XT1), - .scaledtwidth = 1135, - .hdelayx1 = 186, - .hactivex1 = 922, - .vdelay = 0x20, - .vbipack = 255, - .sram = 0, /* like PAL, correct? */ - .vbistart = { 7, 320 }, - CROPCAP(/* minhdelayx1 */ 68, - /* hdelayx1 */ 186, - /* swidth */ 924, - /* totalwidth */ 1135, - /* sqwidth */ 944, - /* vdelay */ 0x20, - /* sheight */ 576, - /* videostart0 */ 23) - },{ - .v4l2_id = V4L2_STD_PAL_Nc, - .name = "PAL-Nc", - .Fsc = 28636363, - .swidth = 640, - .sheight = 576, - .totalwidth = 910, - .adelay = 0x68, - .bdelay = 0x5d, - .iform = (BT848_IFORM_PAL_NC|BT848_IFORM_XT0), - .scaledtwidth = 780, - .hdelayx1 = 130, - .hactivex1 = 734, - .vdelay = 0x1a, - .vbipack = 144, - .sram = -1, - .vbistart = { 7, 320 }, - CROPCAP(/* minhdelayx1 */ 68, - /* hdelayx1 */ 130, - /* swidth */ (640 * 910 + 780 / 2) / 780, - /* totalwidth */ 910, - /* sqwidth */ 780, - /* vdelay */ 0x1a, - /* sheight */ 576, - /* videostart0 */ 23) - },{ - .v4l2_id = V4L2_STD_PAL_M, - .name = "PAL-M", - .Fsc = 28636363, - .swidth = 640, - .sheight = 480, - .totalwidth = 910, - .adelay = 0x68, - .bdelay = 0x5d, - .iform = (BT848_IFORM_PAL_M|BT848_IFORM_XT0), - .scaledtwidth = 780, - .hdelayx1 = 135, - .hactivex1 = 754, - .vdelay = 0x1a, - .vbipack = 144, - .sram = -1, - .vbistart = { 10, 273 }, - CROPCAP(/* minhdelayx1 */ 68, - /* hdelayx1 */ 135, - /* swidth */ (640 * 910 + 780 / 2) / 780, - /* totalwidth */ 910, - /* sqwidth */ 780, - /* vdelay */ 0x1a, - /* sheight */ 480, - /* videostart0 */ 23) - },{ - .v4l2_id = V4L2_STD_PAL_N, - .name = "PAL-N", - .Fsc = 35468950, - .swidth = 768, - .sheight = 576, - .totalwidth = 1135, - .adelay = 0x7f, - .bdelay = 0x72, - .iform = (BT848_IFORM_PAL_N|BT848_IFORM_XT1), - .scaledtwidth = 944, - .hdelayx1 = 186, - .hactivex1 = 922, - .vdelay = 0x20, - .vbipack = 144, - .sram = -1, - .vbistart = { 7, 320 }, - CROPCAP(/* minhdelayx1 */ 68, - /* hdelayx1 */ 186, - /* swidth */ (768 * 1135 + 944 / 2) / 944, - /* totalwidth */ 1135, - /* sqwidth */ 944, - /* vdelay */ 0x20, - /* sheight */ 576, - /* videostart0 */ 23) - },{ - .v4l2_id = V4L2_STD_NTSC_M_JP, - .name = "NTSC-JP", - .Fsc = 28636363, - .swidth = 640, - .sheight = 480, - .totalwidth = 910, - .adelay = 0x68, - .bdelay = 0x5d, - .iform = (BT848_IFORM_NTSC_J|BT848_IFORM_XT0), - .scaledtwidth = 780, - .hdelayx1 = 135, - .hactivex1 = 754, - .vdelay = 0x16, - .vbipack = 144, - .sram = -1, - .vbistart = { 10, 273 }, - CROPCAP(/* minhdelayx1 */ 68, - /* hdelayx1 */ 135, - /* swidth */ (640 * 910 + 780 / 2) / 780, - /* totalwidth */ 910, - /* sqwidth */ 780, - /* vdelay */ 0x16, - /* sheight */ 480, - /* videostart0 */ 23) - },{ - /* that one hopefully works with the strange timing - * which video recorders produce when playing a NTSC - * tape on a PAL TV ... */ - .v4l2_id = V4L2_STD_PAL_60, - .name = "PAL-60", - .Fsc = 35468950, - .swidth = 924, - .sheight = 480, - .totalwidth = 1135, - .adelay = 0x7f, - .bdelay = 0x72, - .iform = (BT848_IFORM_PAL_BDGHI|BT848_IFORM_XT1), - .scaledtwidth = 1135, - .hdelayx1 = 186, - .hactivex1 = 924, - .vdelay = 0x1a, - .vbipack = 255, - .vtotal = 524, - .sram = -1, - .vbistart = { 10, 273 }, - CROPCAP(/* minhdelayx1 */ 68, - /* hdelayx1 */ 186, - /* swidth */ 924, - /* totalwidth */ 1135, - /* sqwidth */ 944, - /* vdelay */ 0x1a, - /* sheight */ 480, - /* videostart0 */ 23) - } -}; -static const unsigned int BTTV_TVNORMS = ARRAY_SIZE(bttv_tvnorms); - -/* ----------------------------------------------------------------------- */ -/* bttv format list - packed pixel formats must come first */ -static const struct bttv_format formats[] = { - { - .name = "8 bpp, gray", - .fourcc = V4L2_PIX_FMT_GREY, - .btformat = BT848_COLOR_FMT_Y8, - .depth = 8, - .flags = FORMAT_FLAGS_PACKED, - },{ - .name = "8 bpp, dithered color", - .fourcc = V4L2_PIX_FMT_HI240, - .btformat = BT848_COLOR_FMT_RGB8, - .depth = 8, - .flags = FORMAT_FLAGS_PACKED | FORMAT_FLAGS_DITHER, - },{ - .name = "15 bpp RGB, le", - .fourcc = V4L2_PIX_FMT_RGB555, - .btformat = BT848_COLOR_FMT_RGB15, - .depth = 16, - .flags = FORMAT_FLAGS_PACKED, - },{ - .name = "15 bpp RGB, be", - .fourcc = V4L2_PIX_FMT_RGB555X, - .btformat = BT848_COLOR_FMT_RGB15, - .btswap = 0x03, /* byteswap */ - .depth = 16, - .flags = FORMAT_FLAGS_PACKED, - },{ - .name = "16 bpp RGB, le", - .fourcc = V4L2_PIX_FMT_RGB565, - .btformat = BT848_COLOR_FMT_RGB16, - .depth = 16, - .flags = FORMAT_FLAGS_PACKED, - },{ - .name = "16 bpp RGB, be", - .fourcc = V4L2_PIX_FMT_RGB565X, - .btformat = BT848_COLOR_FMT_RGB16, - .btswap = 0x03, /* byteswap */ - .depth = 16, - .flags = FORMAT_FLAGS_PACKED, - },{ - .name = "24 bpp RGB, le", - .fourcc = V4L2_PIX_FMT_BGR24, - .btformat = BT848_COLOR_FMT_RGB24, - .depth = 24, - .flags = FORMAT_FLAGS_PACKED, - },{ - .name = "32 bpp RGB, le", - .fourcc = V4L2_PIX_FMT_BGR32, - .btformat = BT848_COLOR_FMT_RGB32, - .depth = 32, - .flags = FORMAT_FLAGS_PACKED, - },{ - .name = "32 bpp RGB, be", - .fourcc = V4L2_PIX_FMT_RGB32, - .btformat = BT848_COLOR_FMT_RGB32, - .btswap = 0x0f, /* byte+word swap */ - .depth = 32, - .flags = FORMAT_FLAGS_PACKED, - },{ - .name = "4:2:2, packed, YUYV", - .fourcc = V4L2_PIX_FMT_YUYV, - .btformat = BT848_COLOR_FMT_YUY2, - .depth = 16, - .flags = FORMAT_FLAGS_PACKED, - },{ - .name = "4:2:2, packed, UYVY", - .fourcc = V4L2_PIX_FMT_UYVY, - .btformat = BT848_COLOR_FMT_YUY2, - .btswap = 0x03, /* byteswap */ - .depth = 16, - .flags = FORMAT_FLAGS_PACKED, - },{ - .name = "4:2:2, planar, Y-Cb-Cr", - .fourcc = V4L2_PIX_FMT_YUV422P, - .btformat = BT848_COLOR_FMT_YCrCb422, - .depth = 16, - .flags = FORMAT_FLAGS_PLANAR, - .hshift = 1, - .vshift = 0, - },{ - .name = "4:2:0, planar, Y-Cb-Cr", - .fourcc = V4L2_PIX_FMT_YUV420, - .btformat = BT848_COLOR_FMT_YCrCb422, - .depth = 12, - .flags = FORMAT_FLAGS_PLANAR, - .hshift = 1, - .vshift = 1, - },{ - .name = "4:2:0, planar, Y-Cr-Cb", - .fourcc = V4L2_PIX_FMT_YVU420, - .btformat = BT848_COLOR_FMT_YCrCb422, - .depth = 12, - .flags = FORMAT_FLAGS_PLANAR | FORMAT_FLAGS_CrCb, - .hshift = 1, - .vshift = 1, - },{ - .name = "4:1:1, planar, Y-Cb-Cr", - .fourcc = V4L2_PIX_FMT_YUV411P, - .btformat = BT848_COLOR_FMT_YCrCb411, - .depth = 12, - .flags = FORMAT_FLAGS_PLANAR, - .hshift = 2, - .vshift = 0, - },{ - .name = "4:1:0, planar, Y-Cb-Cr", - .fourcc = V4L2_PIX_FMT_YUV410, - .btformat = BT848_COLOR_FMT_YCrCb411, - .depth = 9, - .flags = FORMAT_FLAGS_PLANAR, - .hshift = 2, - .vshift = 2, - },{ - .name = "4:1:0, planar, Y-Cr-Cb", - .fourcc = V4L2_PIX_FMT_YVU410, - .btformat = BT848_COLOR_FMT_YCrCb411, - .depth = 9, - .flags = FORMAT_FLAGS_PLANAR | FORMAT_FLAGS_CrCb, - .hshift = 2, - .vshift = 2, - },{ - .name = "raw scanlines", - .fourcc = -1, - .btformat = BT848_COLOR_FMT_RAW, - .depth = 8, - .flags = FORMAT_FLAGS_RAW, - } -}; -static const unsigned int FORMATS = ARRAY_SIZE(formats); - -/* ----------------------------------------------------------------------- */ - -#define V4L2_CID_PRIVATE_CHROMA_AGC (V4L2_CID_PRIVATE_BASE + 0) -#define V4L2_CID_PRIVATE_COMBFILTER (V4L2_CID_PRIVATE_BASE + 1) -#define V4L2_CID_PRIVATE_AUTOMUTE (V4L2_CID_PRIVATE_BASE + 2) -#define V4L2_CID_PRIVATE_LUMAFILTER (V4L2_CID_PRIVATE_BASE + 3) -#define V4L2_CID_PRIVATE_AGC_CRUSH (V4L2_CID_PRIVATE_BASE + 4) -#define V4L2_CID_PRIVATE_VCR_HACK (V4L2_CID_PRIVATE_BASE + 5) -#define V4L2_CID_PRIVATE_WHITECRUSH_UPPER (V4L2_CID_PRIVATE_BASE + 6) -#define V4L2_CID_PRIVATE_WHITECRUSH_LOWER (V4L2_CID_PRIVATE_BASE + 7) -#define V4L2_CID_PRIVATE_UV_RATIO (V4L2_CID_PRIVATE_BASE + 8) -#define V4L2_CID_PRIVATE_FULL_LUMA_RANGE (V4L2_CID_PRIVATE_BASE + 9) -#define V4L2_CID_PRIVATE_CORING (V4L2_CID_PRIVATE_BASE + 10) -#define V4L2_CID_PRIVATE_LASTP1 (V4L2_CID_PRIVATE_BASE + 11) - -static const struct v4l2_queryctrl no_ctl = { - .name = "42", - .flags = V4L2_CTRL_FLAG_DISABLED, -}; -static const struct v4l2_queryctrl bttv_ctls[] = { - /* --- video --- */ - { - .id = V4L2_CID_BRIGHTNESS, - .name = "Brightness", - .minimum = 0, - .maximum = 65535, - .step = 256, - .default_value = 32768, - .type = V4L2_CTRL_TYPE_INTEGER, - },{ - .id = V4L2_CID_CONTRAST, - .name = "Contrast", - .minimum = 0, - .maximum = 65535, - .step = 128, - .default_value = 27648, - .type = V4L2_CTRL_TYPE_INTEGER, - },{ - .id = V4L2_CID_SATURATION, - .name = "Saturation", - .minimum = 0, - .maximum = 65535, - .step = 128, - .default_value = 32768, - .type = V4L2_CTRL_TYPE_INTEGER, - },{ - .id = V4L2_CID_HUE, - .name = "Hue", - .minimum = 0, - .maximum = 65535, - .step = 256, - .default_value = 32768, - .type = V4L2_CTRL_TYPE_INTEGER, - }, - /* --- audio --- */ - { - .id = V4L2_CID_AUDIO_MUTE, - .name = "Mute", - .minimum = 0, - .maximum = 1, - .type = V4L2_CTRL_TYPE_BOOLEAN, - },{ - .id = V4L2_CID_AUDIO_VOLUME, - .name = "Volume", - .minimum = 0, - .maximum = 65535, - .step = 65535/100, - .default_value = 65535, - .type = V4L2_CTRL_TYPE_INTEGER, - },{ - .id = V4L2_CID_AUDIO_BALANCE, - .name = "Balance", - .minimum = 0, - .maximum = 65535, - .step = 65535/100, - .default_value = 32768, - .type = V4L2_CTRL_TYPE_INTEGER, - },{ - .id = V4L2_CID_AUDIO_BASS, - .name = "Bass", - .minimum = 0, - .maximum = 65535, - .step = 65535/100, - .default_value = 32768, - .type = V4L2_CTRL_TYPE_INTEGER, - },{ - .id = V4L2_CID_AUDIO_TREBLE, - .name = "Treble", - .minimum = 0, - .maximum = 65535, - .step = 65535/100, - .default_value = 32768, - .type = V4L2_CTRL_TYPE_INTEGER, - }, - /* --- private --- */ - { - .id = V4L2_CID_PRIVATE_CHROMA_AGC, - .name = "chroma agc", - .minimum = 0, - .maximum = 1, - .type = V4L2_CTRL_TYPE_BOOLEAN, - },{ - .id = V4L2_CID_PRIVATE_COMBFILTER, - .name = "combfilter", - .minimum = 0, - .maximum = 1, - .type = V4L2_CTRL_TYPE_BOOLEAN, - },{ - .id = V4L2_CID_PRIVATE_AUTOMUTE, - .name = "automute", - .minimum = 0, - .maximum = 1, - .type = V4L2_CTRL_TYPE_BOOLEAN, - },{ - .id = V4L2_CID_PRIVATE_LUMAFILTER, - .name = "luma decimation filter", - .minimum = 0, - .maximum = 1, - .type = V4L2_CTRL_TYPE_BOOLEAN, - },{ - .id = V4L2_CID_PRIVATE_AGC_CRUSH, - .name = "agc crush", - .minimum = 0, - .maximum = 1, - .type = V4L2_CTRL_TYPE_BOOLEAN, - },{ - .id = V4L2_CID_PRIVATE_VCR_HACK, - .name = "vcr hack", - .minimum = 0, - .maximum = 1, - .type = V4L2_CTRL_TYPE_BOOLEAN, - },{ - .id = V4L2_CID_PRIVATE_WHITECRUSH_UPPER, - .name = "whitecrush upper", - .minimum = 0, - .maximum = 255, - .step = 1, - .default_value = 0xCF, - .type = V4L2_CTRL_TYPE_INTEGER, - },{ - .id = V4L2_CID_PRIVATE_WHITECRUSH_LOWER, - .name = "whitecrush lower", - .minimum = 0, - .maximum = 255, - .step = 1, - .default_value = 0x7F, - .type = V4L2_CTRL_TYPE_INTEGER, - },{ - .id = V4L2_CID_PRIVATE_UV_RATIO, - .name = "uv ratio", - .minimum = 0, - .maximum = 100, - .step = 1, - .default_value = 50, - .type = V4L2_CTRL_TYPE_INTEGER, - },{ - .id = V4L2_CID_PRIVATE_FULL_LUMA_RANGE, - .name = "full luma range", - .minimum = 0, - .maximum = 1, - .type = V4L2_CTRL_TYPE_BOOLEAN, - },{ - .id = V4L2_CID_PRIVATE_CORING, - .name = "coring", - .minimum = 0, - .maximum = 3, - .step = 1, - .default_value = 0, - .type = V4L2_CTRL_TYPE_INTEGER, - } - - - -}; - -static const struct v4l2_queryctrl *ctrl_by_id(int id) -{ - int i; - - for (i = 0; i < ARRAY_SIZE(bttv_ctls); i++) - if (bttv_ctls[i].id == id) - return bttv_ctls+i; - - return NULL; -} - -/* ----------------------------------------------------------------------- */ -/* resource management */ - -/* - RESOURCE_ allocated by freed by - - VIDEO_READ bttv_read 1) bttv_read 2) - - VIDEO_STREAM VIDIOC_STREAMON VIDIOC_STREAMOFF - VIDIOC_QBUF 1) bttv_release - VIDIOCMCAPTURE 1) - - OVERLAY VIDIOCCAPTURE on VIDIOCCAPTURE off - VIDIOC_OVERLAY on VIDIOC_OVERLAY off - 3) bttv_release - - VBI VIDIOC_STREAMON VIDIOC_STREAMOFF - VIDIOC_QBUF 1) bttv_release - bttv_read, bttv_poll 1) 4) - - 1) The resource must be allocated when we enter buffer prepare functions - and remain allocated while buffers are in the DMA queue. - 2) This is a single frame read. - 3) VIDIOC_S_FBUF and VIDIOC_S_FMT (OVERLAY) still work when - RESOURCE_OVERLAY is allocated. - 4) This is a continuous read, implies VIDIOC_STREAMON. - - Note this driver permits video input and standard changes regardless if - resources are allocated. -*/ - -#define VBI_RESOURCES (RESOURCE_VBI) -#define VIDEO_RESOURCES (RESOURCE_VIDEO_READ | \ - RESOURCE_VIDEO_STREAM | \ - RESOURCE_OVERLAY) - -static -int check_alloc_btres_lock(struct bttv *btv, struct bttv_fh *fh, int bit) -{ - int xbits; /* mutual exclusive resources */ - - if (fh->resources & bit) - /* have it already allocated */ - return 1; - - xbits = bit; - if (bit & (RESOURCE_VIDEO_READ | RESOURCE_VIDEO_STREAM)) - xbits |= RESOURCE_VIDEO_READ | RESOURCE_VIDEO_STREAM; - - /* is it free? */ - if (btv->resources & xbits) { - /* no, someone else uses it */ - goto fail; - } - - if ((bit & VIDEO_RESOURCES) - && 0 == (btv->resources & VIDEO_RESOURCES)) { - /* Do crop - use current, don't - use default parameters. */ - __s32 top = btv->crop[!!fh->do_crop].rect.top; - - if (btv->vbi_end > top) - goto fail; - - /* We cannot capture the same line as video and VBI data. - Claim scan lines crop[].rect.top to bottom. */ - btv->crop_start = top; - } else if (bit & VBI_RESOURCES) { - __s32 end = fh->vbi_fmt.end; - - if (end > btv->crop_start) - goto fail; - - /* Claim scan lines above fh->vbi_fmt.end. */ - btv->vbi_end = end; - } - - /* it's free, grab it */ - fh->resources |= bit; - btv->resources |= bit; - return 1; - - fail: - return 0; -} - -static -int check_btres(struct bttv_fh *fh, int bit) -{ - return (fh->resources & bit); -} - -static -int locked_btres(struct bttv *btv, int bit) -{ - return (btv->resources & bit); -} - -/* Call with btv->lock down. */ -static void -disclaim_vbi_lines(struct bttv *btv) -{ - btv->vbi_end = 0; -} - -/* Call with btv->lock down. */ -static void -disclaim_video_lines(struct bttv *btv) -{ - const struct bttv_tvnorm *tvnorm; - u8 crop; - - tvnorm = &bttv_tvnorms[btv->tvnorm]; - btv->crop_start = tvnorm->cropcap.bounds.top - + tvnorm->cropcap.bounds.height; - - /* VBI capturing ends at VDELAY, start of video capturing, no - matter how many lines the VBI RISC program expects. When video - capturing is off, it shall no longer "preempt" VBI capturing, - so we set VDELAY to maximum. */ - crop = btread(BT848_E_CROP) | 0xc0; - btwrite(crop, BT848_E_CROP); - btwrite(0xfe, BT848_E_VDELAY_LO); - btwrite(crop, BT848_O_CROP); - btwrite(0xfe, BT848_O_VDELAY_LO); -} - -static -void free_btres_lock(struct bttv *btv, struct bttv_fh *fh, int bits) -{ - if ((fh->resources & bits) != bits) { - /* trying to free resources not allocated by us ... */ - pr_err("BUG! (btres)\n"); - } - fh->resources &= ~bits; - btv->resources &= ~bits; - - bits = btv->resources; - - if (0 == (bits & VIDEO_RESOURCES)) - disclaim_video_lines(btv); - - if (0 == (bits & VBI_RESOURCES)) - disclaim_vbi_lines(btv); -} - -/* ----------------------------------------------------------------------- */ -/* If Bt848a or Bt849, use PLL for PAL/SECAM and crystal for NTSC */ - -/* Frequency = (F_input / PLL_X) * PLL_I.PLL_F/PLL_C - PLL_X = Reference pre-divider (0=1, 1=2) - PLL_C = Post divider (0=6, 1=4) - PLL_I = Integer input - PLL_F = Fractional input - - F_input = 28.636363 MHz: - PAL (CLKx2 = 35.46895 MHz): PLL_X = 1, PLL_I = 0x0E, PLL_F = 0xDCF9, PLL_C = 0 -*/ - -static void set_pll_freq(struct bttv *btv, unsigned int fin, unsigned int fout) -{ - unsigned char fl, fh, fi; - - /* prevent overflows */ - fin/=4; - fout/=4; - - fout*=12; - fi=fout/fin; - - fout=(fout%fin)*256; - fh=fout/fin; - - fout=(fout%fin)*256; - fl=fout/fin; - - btwrite(fl, BT848_PLL_F_LO); - btwrite(fh, BT848_PLL_F_HI); - btwrite(fi|BT848_PLL_X, BT848_PLL_XCI); -} - -static void set_pll(struct bttv *btv) -{ - int i; - - if (!btv->pll.pll_crystal) - return; - - if (btv->pll.pll_ofreq == btv->pll.pll_current) { - dprintk("%d: PLL: no change required\n", btv->c.nr); - return; - } - - if (btv->pll.pll_ifreq == btv->pll.pll_ofreq) { - /* no PLL needed */ - if (btv->pll.pll_current == 0) - return; - if (bttv_verbose) - pr_info("%d: PLL can sleep, using XTAL (%d)\n", - btv->c.nr, btv->pll.pll_ifreq); - btwrite(0x00,BT848_TGCTRL); - btwrite(0x00,BT848_PLL_XCI); - btv->pll.pll_current = 0; - return; - } - - if (bttv_verbose) - pr_info("%d: Setting PLL: %d => %d (needs up to 100ms)\n", - btv->c.nr, - btv->pll.pll_ifreq, btv->pll.pll_ofreq); - set_pll_freq(btv, btv->pll.pll_ifreq, btv->pll.pll_ofreq); - - for (i=0; i<10; i++) { - /* Let other people run while the PLL stabilizes */ - msleep(10); - - if (btread(BT848_DSTATUS) & BT848_DSTATUS_PLOCK) { - btwrite(0,BT848_DSTATUS); - } else { - btwrite(0x08,BT848_TGCTRL); - btv->pll.pll_current = btv->pll.pll_ofreq; - if (bttv_verbose) - pr_info("PLL set ok\n"); - return; - } - } - btv->pll.pll_current = -1; - if (bttv_verbose) - pr_info("Setting PLL failed\n"); - return; -} - -/* used to switch between the bt848's analog/digital video capture modes */ -static void bt848A_set_timing(struct bttv *btv) -{ - int i, len; - int table_idx = bttv_tvnorms[btv->tvnorm].sram; - int fsc = bttv_tvnorms[btv->tvnorm].Fsc; - - if (btv->input == btv->dig) { - dprintk("%d: load digital timing table (table_idx=%d)\n", - btv->c.nr,table_idx); - - /* timing change...reset timing generator address */ - btwrite(0x00, BT848_TGCTRL); - btwrite(0x02, BT848_TGCTRL); - btwrite(0x00, BT848_TGCTRL); - - len=SRAM_Table[table_idx][0]; - for(i = 1; i <= len; i++) - btwrite(SRAM_Table[table_idx][i],BT848_TGLB); - btv->pll.pll_ofreq = 27000000; - - set_pll(btv); - btwrite(0x11, BT848_TGCTRL); - btwrite(0x41, BT848_DVSIF); - } else { - btv->pll.pll_ofreq = fsc; - set_pll(btv); - btwrite(0x0, BT848_DVSIF); - } -} - -/* ----------------------------------------------------------------------- */ - -static void bt848_bright(struct bttv *btv, int bright) -{ - int value; - - // printk("set bright: %d\n", bright); // DEBUG - btv->bright = bright; - - /* We want -128 to 127 we get 0-65535 */ - value = (bright >> 8) - 128; - btwrite(value & 0xff, BT848_BRIGHT); -} - -static void bt848_hue(struct bttv *btv, int hue) -{ - int value; - - btv->hue = hue; - - /* -128 to 127 */ - value = (hue >> 8) - 128; - btwrite(value & 0xff, BT848_HUE); -} - -static void bt848_contrast(struct bttv *btv, int cont) -{ - int value,hibit; - - btv->contrast = cont; - - /* 0-511 */ - value = (cont >> 7); - hibit = (value >> 6) & 4; - btwrite(value & 0xff, BT848_CONTRAST_LO); - btaor(hibit, ~4, BT848_E_CONTROL); - btaor(hibit, ~4, BT848_O_CONTROL); -} - -static void bt848_sat(struct bttv *btv, int color) -{ - int val_u,val_v,hibits; - - btv->saturation = color; - - /* 0-511 for the color */ - val_u = ((color * btv->opt_uv_ratio) / 50) >> 7; - val_v = (((color * (100 - btv->opt_uv_ratio) / 50) >>7)*180L)/254; - hibits = (val_u >> 7) & 2; - hibits |= (val_v >> 8) & 1; - btwrite(val_u & 0xff, BT848_SAT_U_LO); - btwrite(val_v & 0xff, BT848_SAT_V_LO); - btaor(hibits, ~3, BT848_E_CONTROL); - btaor(hibits, ~3, BT848_O_CONTROL); -} - -/* ----------------------------------------------------------------------- */ - -static int -video_mux(struct bttv *btv, unsigned int input) -{ - int mux,mask2; - - if (input >= bttv_tvcards[btv->c.type].video_inputs) - return -EINVAL; - - /* needed by RemoteVideo MX */ - mask2 = bttv_tvcards[btv->c.type].gpiomask2; - if (mask2) - gpio_inout(mask2,mask2); - - if (input == btv->svhs) { - btor(BT848_CONTROL_COMP, BT848_E_CONTROL); - btor(BT848_CONTROL_COMP, BT848_O_CONTROL); - } else { - btand(~BT848_CONTROL_COMP, BT848_E_CONTROL); - btand(~BT848_CONTROL_COMP, BT848_O_CONTROL); - } - mux = bttv_muxsel(btv, input); - btaor(mux<<5, ~(3<<5), BT848_IFORM); - dprintk("%d: video mux: input=%d mux=%d\n", btv->c.nr, input, mux); - - /* card specific hook */ - if(bttv_tvcards[btv->c.type].muxsel_hook) - bttv_tvcards[btv->c.type].muxsel_hook (btv, input); - return 0; -} - -static char *audio_modes[] = { - "audio: tuner", "audio: radio", "audio: extern", - "audio: intern", "audio: mute" -}; - -static int -audio_mux(struct bttv *btv, int input, int mute) -{ - int gpio_val, signal; - struct v4l2_control ctrl; - - gpio_inout(bttv_tvcards[btv->c.type].gpiomask, - bttv_tvcards[btv->c.type].gpiomask); - signal = btread(BT848_DSTATUS) & BT848_DSTATUS_HLOC; - - btv->mute = mute; - btv->audio = input; - - /* automute */ - mute = mute || (btv->opt_automute && !signal && !btv->radio_user); - - if (mute) - gpio_val = bttv_tvcards[btv->c.type].gpiomute; - else - gpio_val = bttv_tvcards[btv->c.type].gpiomux[input]; - - switch (btv->c.type) { - case BTTV_BOARD_VOODOOTV_FM: - case BTTV_BOARD_VOODOOTV_200: - gpio_val = bttv_tda9880_setnorm(btv, gpio_val); - break; - - default: - gpio_bits(bttv_tvcards[btv->c.type].gpiomask, gpio_val); - } - - if (bttv_gpio) - bttv_gpio_tracking(btv, audio_modes[mute ? 4 : input]); - if (in_interrupt()) - return 0; - - ctrl.id = V4L2_CID_AUDIO_MUTE; - ctrl.value = btv->mute; - bttv_call_all(btv, core, s_ctrl, &ctrl); - if (btv->sd_msp34xx) { - u32 in; - - /* Note: the inputs tuner/radio/extern/intern are translated - to msp routings. This assumes common behavior for all msp3400 - based TV cards. When this assumption fails, then the - specific MSP routing must be added to the card table. - For now this is sufficient. */ - switch (input) { - case TVAUDIO_INPUT_RADIO: - /* Some boards need the msp do to the radio demod */ - if (btv->radio_uses_msp_demodulator) { - in = MSP_INPUT_DEFAULT; - break; - } - in = MSP_INPUT(MSP_IN_SCART2, MSP_IN_TUNER1, - MSP_DSP_IN_SCART, MSP_DSP_IN_SCART); - break; - case TVAUDIO_INPUT_EXTERN: - in = MSP_INPUT(MSP_IN_SCART1, MSP_IN_TUNER1, - MSP_DSP_IN_SCART, MSP_DSP_IN_SCART); - break; - case TVAUDIO_INPUT_INTERN: - /* Yes, this is the same input as for RADIO. I doubt - if this is ever used. The only board with an INTERN - input is the BTTV_BOARD_AVERMEDIA98. I wonder how - that was tested. My guess is that the whole INTERN - input does not work. */ - in = MSP_INPUT(MSP_IN_SCART2, MSP_IN_TUNER1, - MSP_DSP_IN_SCART, MSP_DSP_IN_SCART); - break; - case TVAUDIO_INPUT_TUNER: - default: - /* This is the only card that uses TUNER2, and afaik, - is the only difference between the VOODOOTV_FM - and VOODOOTV_200 */ - if (btv->c.type == BTTV_BOARD_VOODOOTV_200) - in = MSP_INPUT(MSP_IN_SCART1, MSP_IN_TUNER2, \ - MSP_DSP_IN_TUNER, MSP_DSP_IN_TUNER); - else - in = MSP_INPUT_DEFAULT; - break; - } - v4l2_subdev_call(btv->sd_msp34xx, audio, s_routing, - in, MSP_OUTPUT_DEFAULT, 0); - } - if (btv->sd_tvaudio) { - v4l2_subdev_call(btv->sd_tvaudio, audio, s_routing, - input, 0, 0); - } - return 0; -} - -static inline int -audio_mute(struct bttv *btv, int mute) -{ - return audio_mux(btv, btv->audio, mute); -} - -static inline int -audio_input(struct bttv *btv, int input) -{ - return audio_mux(btv, input, btv->mute); -} - -static void -bttv_crop_calc_limits(struct bttv_crop *c) -{ - /* Scale factor min. 1:1, max. 16:1. Min. image size - 48 x 32. Scaled width must be a multiple of 4. */ - - if (1) { - /* For bug compatibility with VIDIOCGCAP and image - size checks in earlier driver versions. */ - c->min_scaled_width = 48; - c->min_scaled_height = 32; - } else { - c->min_scaled_width = - (max(48, c->rect.width >> 4) + 3) & ~3; - c->min_scaled_height = - max(32, c->rect.height >> 4); - } - - c->max_scaled_width = c->rect.width & ~3; - c->max_scaled_height = c->rect.height; -} - -static void -bttv_crop_reset(struct bttv_crop *c, unsigned int norm) -{ - c->rect = bttv_tvnorms[norm].cropcap.defrect; - bttv_crop_calc_limits(c); -} - -/* Call with btv->lock down. */ -static int -set_tvnorm(struct bttv *btv, unsigned int norm) -{ - const struct bttv_tvnorm *tvnorm; - v4l2_std_id id; - - BUG_ON(norm >= BTTV_TVNORMS); - BUG_ON(btv->tvnorm >= BTTV_TVNORMS); - - tvnorm = &bttv_tvnorms[norm]; - - if (memcmp(&bttv_tvnorms[btv->tvnorm].cropcap, &tvnorm->cropcap, - sizeof (tvnorm->cropcap))) { - bttv_crop_reset(&btv->crop[0], norm); - btv->crop[1] = btv->crop[0]; /* current = default */ - - if (0 == (btv->resources & VIDEO_RESOURCES)) { - btv->crop_start = tvnorm->cropcap.bounds.top - + tvnorm->cropcap.bounds.height; - } - } - - btv->tvnorm = norm; - - btwrite(tvnorm->adelay, BT848_ADELAY); - btwrite(tvnorm->bdelay, BT848_BDELAY); - btaor(tvnorm->iform,~(BT848_IFORM_NORM|BT848_IFORM_XTBOTH), - BT848_IFORM); - btwrite(tvnorm->vbipack, BT848_VBI_PACK_SIZE); - btwrite(1, BT848_VBI_PACK_DEL); - bt848A_set_timing(btv); - - switch (btv->c.type) { - case BTTV_BOARD_VOODOOTV_FM: - case BTTV_BOARD_VOODOOTV_200: - bttv_tda9880_setnorm(btv, gpio_read()); - break; - } - id = tvnorm->v4l2_id; - bttv_call_all(btv, core, s_std, id); - - return 0; -} - -/* Call with btv->lock down. */ -static void -set_input(struct bttv *btv, unsigned int input, unsigned int norm) -{ - unsigned long flags; - - btv->input = input; - if (irq_iswitch) { - spin_lock_irqsave(&btv->s_lock,flags); - if (btv->curr.frame_irq) { - /* active capture -> delayed input switch */ - btv->new_input = input; - } else { - video_mux(btv,input); - } - spin_unlock_irqrestore(&btv->s_lock,flags); - } else { - video_mux(btv,input); - } - audio_input(btv, (btv->tuner_type != TUNER_ABSENT && input == 0) ? - TVAUDIO_INPUT_TUNER : TVAUDIO_INPUT_EXTERN); - set_tvnorm(btv, norm); -} - -static void init_irqreg(struct bttv *btv) -{ - /* clear status */ - btwrite(0xfffffUL, BT848_INT_STAT); - - if (bttv_tvcards[btv->c.type].no_video) { - /* i2c only */ - btwrite(BT848_INT_I2CDONE, - BT848_INT_MASK); - } else { - /* full video */ - btwrite((btv->triton1) | - (btv->gpioirq ? BT848_INT_GPINT : 0) | - BT848_INT_SCERR | - (fdsr ? BT848_INT_FDSR : 0) | - BT848_INT_RISCI | BT848_INT_OCERR | - BT848_INT_FMTCHG|BT848_INT_HLOCK| - BT848_INT_I2CDONE, - BT848_INT_MASK); - } -} - -static void init_bt848(struct bttv *btv) -{ - int val; - - if (bttv_tvcards[btv->c.type].no_video) { - /* very basic init only */ - init_irqreg(btv); - return; - } - - btwrite(0x00, BT848_CAP_CTL); - btwrite(BT848_COLOR_CTL_GAMMA, BT848_COLOR_CTL); - btwrite(BT848_IFORM_XTAUTO | BT848_IFORM_AUTO, BT848_IFORM); - - /* set planar and packed mode trigger points and */ - /* set rising edge of inverted GPINTR pin as irq trigger */ - btwrite(BT848_GPIO_DMA_CTL_PKTP_32| - BT848_GPIO_DMA_CTL_PLTP1_16| - BT848_GPIO_DMA_CTL_PLTP23_16| - BT848_GPIO_DMA_CTL_GPINTC| - BT848_GPIO_DMA_CTL_GPINTI, - BT848_GPIO_DMA_CTL); - - val = btv->opt_chroma_agc ? BT848_SCLOOP_CAGC : 0; - btwrite(val, BT848_E_SCLOOP); - btwrite(val, BT848_O_SCLOOP); - - btwrite(0x20, BT848_E_VSCALE_HI); - btwrite(0x20, BT848_O_VSCALE_HI); - btwrite(BT848_ADC_RESERVED | (btv->opt_adc_crush ? BT848_ADC_CRUSH : 0), - BT848_ADC); - - btwrite(whitecrush_upper, BT848_WC_UP); - btwrite(whitecrush_lower, BT848_WC_DOWN); - - if (btv->opt_lumafilter) { - btwrite(0, BT848_E_CONTROL); - btwrite(0, BT848_O_CONTROL); - } else { - btwrite(BT848_CONTROL_LDEC, BT848_E_CONTROL); - btwrite(BT848_CONTROL_LDEC, BT848_O_CONTROL); - } - - bt848_bright(btv, btv->bright); - bt848_hue(btv, btv->hue); - bt848_contrast(btv, btv->contrast); - bt848_sat(btv, btv->saturation); - - /* interrupt */ - init_irqreg(btv); -} - -static void bttv_reinit_bt848(struct bttv *btv) -{ - unsigned long flags; - - if (bttv_verbose) - pr_info("%d: reset, reinitialize\n", btv->c.nr); - spin_lock_irqsave(&btv->s_lock,flags); - btv->errors=0; - bttv_set_dma(btv,0); - spin_unlock_irqrestore(&btv->s_lock,flags); - - init_bt848(btv); - btv->pll.pll_current = -1; - set_input(btv, btv->input, btv->tvnorm); -} - -static int bttv_g_ctrl(struct file *file, void *priv, - struct v4l2_control *c) -{ - struct bttv_fh *fh = priv; - struct bttv *btv = fh->btv; - - switch (c->id) { - case V4L2_CID_BRIGHTNESS: - c->value = btv->bright; - break; - case V4L2_CID_HUE: - c->value = btv->hue; - break; - case V4L2_CID_CONTRAST: - c->value = btv->contrast; - break; - case V4L2_CID_SATURATION: - c->value = btv->saturation; - break; - - case V4L2_CID_AUDIO_MUTE: - case V4L2_CID_AUDIO_VOLUME: - case V4L2_CID_AUDIO_BALANCE: - case V4L2_CID_AUDIO_BASS: - case V4L2_CID_AUDIO_TREBLE: - bttv_call_all(btv, core, g_ctrl, c); - break; - - case V4L2_CID_PRIVATE_CHROMA_AGC: - c->value = btv->opt_chroma_agc; - break; - case V4L2_CID_PRIVATE_COMBFILTER: - c->value = btv->opt_combfilter; - break; - case V4L2_CID_PRIVATE_LUMAFILTER: - c->value = btv->opt_lumafilter; - break; - case V4L2_CID_PRIVATE_AUTOMUTE: - c->value = btv->opt_automute; - break; - case V4L2_CID_PRIVATE_AGC_CRUSH: - c->value = btv->opt_adc_crush; - break; - case V4L2_CID_PRIVATE_VCR_HACK: - c->value = btv->opt_vcr_hack; - break; - case V4L2_CID_PRIVATE_WHITECRUSH_UPPER: - c->value = btv->opt_whitecrush_upper; - break; - case V4L2_CID_PRIVATE_WHITECRUSH_LOWER: - c->value = btv->opt_whitecrush_lower; - break; - case V4L2_CID_PRIVATE_UV_RATIO: - c->value = btv->opt_uv_ratio; - break; - case V4L2_CID_PRIVATE_FULL_LUMA_RANGE: - c->value = btv->opt_full_luma_range; - break; - case V4L2_CID_PRIVATE_CORING: - c->value = btv->opt_coring; - break; - default: - return -EINVAL; - } - return 0; -} - -static int bttv_s_ctrl(struct file *file, void *f, - struct v4l2_control *c) -{ - int err; - int val; - struct bttv_fh *fh = f; - struct bttv *btv = fh->btv; - - err = v4l2_prio_check(&btv->prio, fh->prio); - if (0 != err) - return err; - - switch (c->id) { - case V4L2_CID_BRIGHTNESS: - bt848_bright(btv, c->value); - break; - case V4L2_CID_HUE: - bt848_hue(btv, c->value); - break; - case V4L2_CID_CONTRAST: - bt848_contrast(btv, c->value); - break; - case V4L2_CID_SATURATION: - bt848_sat(btv, c->value); - break; - case V4L2_CID_AUDIO_MUTE: - audio_mute(btv, c->value); - /* fall through */ - case V4L2_CID_AUDIO_VOLUME: - if (btv->volume_gpio) - btv->volume_gpio(btv, c->value); - - bttv_call_all(btv, core, s_ctrl, c); - break; - case V4L2_CID_AUDIO_BALANCE: - case V4L2_CID_AUDIO_BASS: - case V4L2_CID_AUDIO_TREBLE: - bttv_call_all(btv, core, s_ctrl, c); - break; - - case V4L2_CID_PRIVATE_CHROMA_AGC: - btv->opt_chroma_agc = c->value; - val = btv->opt_chroma_agc ? BT848_SCLOOP_CAGC : 0; - btwrite(val, BT848_E_SCLOOP); - btwrite(val, BT848_O_SCLOOP); - break; - case V4L2_CID_PRIVATE_COMBFILTER: - btv->opt_combfilter = c->value; - break; - case V4L2_CID_PRIVATE_LUMAFILTER: - btv->opt_lumafilter = c->value; - if (btv->opt_lumafilter) { - btand(~BT848_CONTROL_LDEC, BT848_E_CONTROL); - btand(~BT848_CONTROL_LDEC, BT848_O_CONTROL); - } else { - btor(BT848_CONTROL_LDEC, BT848_E_CONTROL); - btor(BT848_CONTROL_LDEC, BT848_O_CONTROL); - } - break; - case V4L2_CID_PRIVATE_AUTOMUTE: - btv->opt_automute = c->value; - break; - case V4L2_CID_PRIVATE_AGC_CRUSH: - btv->opt_adc_crush = c->value; - btwrite(BT848_ADC_RESERVED | - (btv->opt_adc_crush ? BT848_ADC_CRUSH : 0), - BT848_ADC); - break; - case V4L2_CID_PRIVATE_VCR_HACK: - btv->opt_vcr_hack = c->value; - break; - case V4L2_CID_PRIVATE_WHITECRUSH_UPPER: - btv->opt_whitecrush_upper = c->value; - btwrite(c->value, BT848_WC_UP); - break; - case V4L2_CID_PRIVATE_WHITECRUSH_LOWER: - btv->opt_whitecrush_lower = c->value; - btwrite(c->value, BT848_WC_DOWN); - break; - case V4L2_CID_PRIVATE_UV_RATIO: - btv->opt_uv_ratio = c->value; - bt848_sat(btv, btv->saturation); - break; - case V4L2_CID_PRIVATE_FULL_LUMA_RANGE: - btv->opt_full_luma_range = c->value; - btaor((c->value<<7), ~BT848_OFORM_RANGE, BT848_OFORM); - break; - case V4L2_CID_PRIVATE_CORING: - btv->opt_coring = c->value; - btaor((c->value<<5), ~BT848_OFORM_CORE32, BT848_OFORM); - break; - default: - return -EINVAL; - } - return 0; -} - -/* ----------------------------------------------------------------------- */ - -void bttv_gpio_tracking(struct bttv *btv, char *comment) -{ - unsigned int outbits, data; - outbits = btread(BT848_GPIO_OUT_EN); - data = btread(BT848_GPIO_DATA); - pr_debug("%d: gpio: en=%08x, out=%08x in=%08x [%s]\n", - btv->c.nr, outbits, data & outbits, data & ~outbits, comment); -} - -static void bttv_field_count(struct bttv *btv) -{ - int need_count = 0; - - if (btv->users) - need_count++; - - if (need_count) { - /* start field counter */ - btor(BT848_INT_VSYNC,BT848_INT_MASK); - } else { - /* stop field counter */ - btand(~BT848_INT_VSYNC,BT848_INT_MASK); - btv->field_count = 0; - } -} - -static const struct bttv_format* -format_by_fourcc(int fourcc) -{ - unsigned int i; - - for (i = 0; i < FORMATS; i++) { - if (-1 == formats[i].fourcc) - continue; - if (formats[i].fourcc == fourcc) - return formats+i; - } - return NULL; -} - -/* ----------------------------------------------------------------------- */ -/* misc helpers */ - -static int -bttv_switch_overlay(struct bttv *btv, struct bttv_fh *fh, - struct bttv_buffer *new) -{ - struct bttv_buffer *old; - unsigned long flags; - int retval = 0; - - dprintk("switch_overlay: enter [new=%p]\n", new); - if (new) - new->vb.state = VIDEOBUF_DONE; - spin_lock_irqsave(&btv->s_lock,flags); - old = btv->screen; - btv->screen = new; - btv->loop_irq |= 1; - bttv_set_dma(btv, 0x03); - spin_unlock_irqrestore(&btv->s_lock,flags); - if (NULL != old) { - dprintk("switch_overlay: old=%p state is %d\n", - old, old->vb.state); - bttv_dma_free(&fh->cap,btv, old); - kfree(old); - } - if (NULL == new) - free_btres_lock(btv,fh,RESOURCE_OVERLAY); - dprintk("switch_overlay: done\n"); - return retval; -} - -/* ----------------------------------------------------------------------- */ -/* video4linux (1) interface */ - -static int bttv_prepare_buffer(struct videobuf_queue *q,struct bttv *btv, - struct bttv_buffer *buf, - const struct bttv_format *fmt, - unsigned int width, unsigned int height, - enum v4l2_field field) -{ - struct bttv_fh *fh = q->priv_data; - int redo_dma_risc = 0; - struct bttv_crop c; - int norm; - int rc; - - /* check settings */ - if (NULL == fmt) - return -EINVAL; - if (fmt->btformat == BT848_COLOR_FMT_RAW) { - width = RAW_BPL; - height = RAW_LINES*2; - if (width*height > buf->vb.bsize) - return -EINVAL; - buf->vb.size = buf->vb.bsize; - - /* Make sure tvnorm and vbi_end remain consistent - until we're done. */ - - norm = btv->tvnorm; - - /* In this mode capturing always starts at defrect.top - (default VDELAY), ignoring cropping parameters. */ - if (btv->vbi_end > bttv_tvnorms[norm].cropcap.defrect.top) { - return -EINVAL; - } - - c.rect = bttv_tvnorms[norm].cropcap.defrect; - } else { - norm = btv->tvnorm; - c = btv->crop[!!fh->do_crop]; - - if (width < c.min_scaled_width || - width > c.max_scaled_width || - height < c.min_scaled_height) - return -EINVAL; - - switch (field) { - case V4L2_FIELD_TOP: - case V4L2_FIELD_BOTTOM: - case V4L2_FIELD_ALTERNATE: - /* btv->crop counts frame lines. Max. scale - factor is 16:1 for frames, 8:1 for fields. */ - if (height * 2 > c.max_scaled_height) - return -EINVAL; - break; - - default: - if (height > c.max_scaled_height) - return -EINVAL; - break; - } - - buf->vb.size = (width * height * fmt->depth) >> 3; - if (0 != buf->vb.baddr && buf->vb.bsize < buf->vb.size) - return -EINVAL; - } - - /* alloc + fill struct bttv_buffer (if changed) */ - if (buf->vb.width != width || buf->vb.height != height || - buf->vb.field != field || - buf->tvnorm != norm || buf->fmt != fmt || - buf->crop.top != c.rect.top || - buf->crop.left != c.rect.left || - buf->crop.width != c.rect.width || - buf->crop.height != c.rect.height) { - buf->vb.width = width; - buf->vb.height = height; - buf->vb.field = field; - buf->tvnorm = norm; - buf->fmt = fmt; - buf->crop = c.rect; - redo_dma_risc = 1; - } - - /* alloc risc memory */ - if (VIDEOBUF_NEEDS_INIT == buf->vb.state) { - redo_dma_risc = 1; - if (0 != (rc = videobuf_iolock(q,&buf->vb,&btv->fbuf))) - goto fail; - } - - if (redo_dma_risc) - if (0 != (rc = bttv_buffer_risc(btv,buf))) - goto fail; - - buf->vb.state = VIDEOBUF_PREPARED; - return 0; - - fail: - bttv_dma_free(q,btv,buf); - return rc; -} - -static int -buffer_setup(struct videobuf_queue *q, unsigned int *count, unsigned int *size) -{ - struct bttv_fh *fh = q->priv_data; - - *size = fh->fmt->depth*fh->width*fh->height >> 3; - if (0 == *count) - *count = gbuffers; - if (*size * *count > gbuffers * gbufsize) - *count = (gbuffers * gbufsize) / *size; - return 0; -} - -static int -buffer_prepare(struct videobuf_queue *q, struct videobuf_buffer *vb, - enum v4l2_field field) -{ - struct bttv_buffer *buf = container_of(vb,struct bttv_buffer,vb); - struct bttv_fh *fh = q->priv_data; - - return bttv_prepare_buffer(q,fh->btv, buf, fh->fmt, - fh->width, fh->height, field); -} - -static void -buffer_queue(struct videobuf_queue *q, struct videobuf_buffer *vb) -{ - struct bttv_buffer *buf = container_of(vb,struct bttv_buffer,vb); - struct bttv_fh *fh = q->priv_data; - struct bttv *btv = fh->btv; - - buf->vb.state = VIDEOBUF_QUEUED; - list_add_tail(&buf->vb.queue,&btv->capture); - if (!btv->curr.frame_irq) { - btv->loop_irq |= 1; - bttv_set_dma(btv, 0x03); - } -} - -static void buffer_release(struct videobuf_queue *q, struct videobuf_buffer *vb) -{ - struct bttv_buffer *buf = container_of(vb,struct bttv_buffer,vb); - struct bttv_fh *fh = q->priv_data; - - bttv_dma_free(q,fh->btv,buf); -} - -static struct videobuf_queue_ops bttv_video_qops = { - .buf_setup = buffer_setup, - .buf_prepare = buffer_prepare, - .buf_queue = buffer_queue, - .buf_release = buffer_release, -}; - -static int bttv_s_std(struct file *file, void *priv, v4l2_std_id *id) -{ - struct bttv_fh *fh = priv; - struct bttv *btv = fh->btv; - unsigned int i; - int err; - - err = v4l2_prio_check(&btv->prio, fh->prio); - if (err) - goto err; - - for (i = 0; i < BTTV_TVNORMS; i++) - if (*id & bttv_tvnorms[i].v4l2_id) - break; - if (i == BTTV_TVNORMS) { - err = -EINVAL; - goto err; - } - - set_tvnorm(btv, i); - -err: - - return err; -} - -static int bttv_querystd(struct file *file, void *f, v4l2_std_id *id) -{ - struct bttv_fh *fh = f; - struct bttv *btv = fh->btv; - - if (btread(BT848_DSTATUS) & BT848_DSTATUS_NUML) - *id = V4L2_STD_625_50; - else - *id = V4L2_STD_525_60; - return 0; -} - -static int bttv_enum_input(struct file *file, void *priv, - struct v4l2_input *i) -{ - struct bttv_fh *fh = priv; - struct bttv *btv = fh->btv; - int rc = 0; - - if (i->index >= bttv_tvcards[btv->c.type].video_inputs) { - rc = -EINVAL; - goto err; - } - - i->type = V4L2_INPUT_TYPE_CAMERA; - i->audioset = 1; - - if (btv->tuner_type != TUNER_ABSENT && i->index == 0) { - sprintf(i->name, "Television"); - i->type = V4L2_INPUT_TYPE_TUNER; - i->tuner = 0; - } else if (i->index == btv->svhs) { - sprintf(i->name, "S-Video"); - } else { - sprintf(i->name, "Composite%d", i->index); - } - - if (i->index == btv->input) { - __u32 dstatus = btread(BT848_DSTATUS); - if (0 == (dstatus & BT848_DSTATUS_PRES)) - i->status |= V4L2_IN_ST_NO_SIGNAL; - if (0 == (dstatus & BT848_DSTATUS_HLOC)) - i->status |= V4L2_IN_ST_NO_H_LOCK; - } - - i->std = BTTV_NORMS; - -err: - - return rc; -} - -static int bttv_g_input(struct file *file, void *priv, unsigned int *i) -{ - struct bttv_fh *fh = priv; - struct bttv *btv = fh->btv; - - *i = btv->input; - - return 0; -} - -static int bttv_s_input(struct file *file, void *priv, unsigned int i) -{ - struct bttv_fh *fh = priv; - struct bttv *btv = fh->btv; - - int err; - - err = v4l2_prio_check(&btv->prio, fh->prio); - if (unlikely(err)) - goto err; - - if (i > bttv_tvcards[btv->c.type].video_inputs) { - err = -EINVAL; - goto err; - } - - set_input(btv, i, btv->tvnorm); - -err: - return 0; -} - -static int bttv_s_tuner(struct file *file, void *priv, - struct v4l2_tuner *t) -{ - struct bttv_fh *fh = priv; - struct bttv *btv = fh->btv; - int err; - - if (unlikely(0 != t->index)) - return -EINVAL; - - if (unlikely(btv->tuner_type == TUNER_ABSENT)) { - err = -EINVAL; - goto err; - } - - err = v4l2_prio_check(&btv->prio, fh->prio); - if (unlikely(err)) - goto err; - - bttv_call_all(btv, tuner, s_tuner, t); - - if (btv->audio_mode_gpio) - btv->audio_mode_gpio(btv, t, 1); - -err: - - return 0; -} - -static int bttv_g_frequency(struct file *file, void *priv, - struct v4l2_frequency *f) -{ - struct bttv_fh *fh = priv; - struct bttv *btv = fh->btv; - - f->type = btv->radio_user ? V4L2_TUNER_RADIO : V4L2_TUNER_ANALOG_TV; - f->frequency = btv->freq; - - return 0; -} - -static int bttv_s_frequency(struct file *file, void *priv, - struct v4l2_frequency *f) -{ - struct bttv_fh *fh = priv; - struct bttv *btv = fh->btv; - int err; - - if (unlikely(f->tuner != 0)) - return -EINVAL; - - err = v4l2_prio_check(&btv->prio, fh->prio); - if (unlikely(err)) - goto err; - - if (unlikely(f->type != (btv->radio_user - ? V4L2_TUNER_RADIO : V4L2_TUNER_ANALOG_TV))) { - err = -EINVAL; - goto err; - } - btv->freq = f->frequency; - bttv_call_all(btv, tuner, s_frequency, f); - if (btv->has_matchbox && btv->radio_user) - tea5757_set_freq(btv, btv->freq); -err: - - return 0; -} - -static int bttv_log_status(struct file *file, void *f) -{ - struct bttv_fh *fh = f; - struct bttv *btv = fh->btv; - - bttv_call_all(btv, core, log_status); - return 0; -} - -#ifdef CONFIG_VIDEO_ADV_DEBUG -static int bttv_g_register(struct file *file, void *f, - struct v4l2_dbg_register *reg) -{ - struct bttv_fh *fh = f; - struct bttv *btv = fh->btv; - - if (!capable(CAP_SYS_ADMIN)) - return -EPERM; - - if (!v4l2_chip_match_host(®->match)) - return -EINVAL; - - /* bt848 has a 12-bit register space */ - reg->reg &= 0xfff; - reg->val = btread(reg->reg); - reg->size = 1; - - return 0; -} - -static int bttv_s_register(struct file *file, void *f, - struct v4l2_dbg_register *reg) -{ - struct bttv_fh *fh = f; - struct bttv *btv = fh->btv; - - if (!capable(CAP_SYS_ADMIN)) - return -EPERM; - - if (!v4l2_chip_match_host(®->match)) - return -EINVAL; - - /* bt848 has a 12-bit register space */ - reg->reg &= 0xfff; - btwrite(reg->val, reg->reg); - - return 0; -} -#endif - -/* Given cropping boundaries b and the scaled width and height of a - single field or frame, which must not exceed hardware limits, this - function adjusts the cropping parameters c. */ -static void -bttv_crop_adjust (struct bttv_crop * c, - const struct v4l2_rect * b, - __s32 width, - __s32 height, - enum v4l2_field field) -{ - __s32 frame_height = height << !V4L2_FIELD_HAS_BOTH(field); - __s32 max_left; - __s32 max_top; - - if (width < c->min_scaled_width) { - /* Max. hor. scale factor 16:1. */ - c->rect.width = width * 16; - } else if (width > c->max_scaled_width) { - /* Min. hor. scale factor 1:1. */ - c->rect.width = width; - - max_left = b->left + b->width - width; - max_left = min(max_left, (__s32) MAX_HDELAY); - if (c->rect.left > max_left) - c->rect.left = max_left; - } - - if (height < c->min_scaled_height) { - /* Max. vert. scale factor 16:1, single fields 8:1. */ - c->rect.height = height * 16; - } else if (frame_height > c->max_scaled_height) { - /* Min. vert. scale factor 1:1. - Top and height count field lines times two. */ - c->rect.height = (frame_height + 1) & ~1; - - max_top = b->top + b->height - c->rect.height; - if (c->rect.top > max_top) - c->rect.top = max_top; - } - - bttv_crop_calc_limits(c); -} - -/* Returns an error if scaling to a frame or single field with the given - width and height is not possible with the current cropping parameters - and width aligned according to width_mask. If adjust_size is TRUE the - function may adjust the width and/or height instead, rounding width - to (width + width_bias) & width_mask. If adjust_crop is TRUE it may - also adjust the current cropping parameters to get closer to the - desired image size. */ -static int -limit_scaled_size_lock (struct bttv_fh * fh, - __s32 * width, - __s32 * height, - enum v4l2_field field, - unsigned int width_mask, - unsigned int width_bias, - int adjust_size, - int adjust_crop) -{ - struct bttv *btv = fh->btv; - const struct v4l2_rect *b; - struct bttv_crop *c; - __s32 min_width; - __s32 min_height; - __s32 max_width; - __s32 max_height; - int rc; - - BUG_ON((int) width_mask >= 0 || - width_bias >= (unsigned int) -width_mask); - - /* Make sure tvnorm, vbi_end and the current cropping parameters - remain consistent until we're done. */ - - b = &bttv_tvnorms[btv->tvnorm].cropcap.bounds; - - /* Do crop - use current, don't - use default parameters. */ - c = &btv->crop[!!fh->do_crop]; - - if (fh->do_crop - && adjust_size - && adjust_crop - && !locked_btres(btv, VIDEO_RESOURCES)) { - min_width = 48; - min_height = 32; - - /* We cannot scale up. When the scaled image is larger - than crop.rect we adjust the crop.rect as required - by the V4L2 spec, hence cropcap.bounds are our limit. */ - max_width = min(b->width, (__s32) MAX_HACTIVE); - max_height = b->height; - - /* We cannot capture the same line as video and VBI data. - Note btv->vbi_end is really a minimum, see - bttv_vbi_try_fmt(). */ - if (btv->vbi_end > b->top) { - max_height -= btv->vbi_end - b->top; - rc = -EBUSY; - if (min_height > max_height) - goto fail; - } - } else { - rc = -EBUSY; - if (btv->vbi_end > c->rect.top) - goto fail; - - min_width = c->min_scaled_width; - min_height = c->min_scaled_height; - max_width = c->max_scaled_width; - max_height = c->max_scaled_height; - - adjust_crop = 0; - } - - min_width = (min_width - width_mask - 1) & width_mask; - max_width = max_width & width_mask; - - /* Max. scale factor is 16:1 for frames, 8:1 for fields. */ - min_height = min_height; - /* Min. scale factor is 1:1. */ - max_height >>= !V4L2_FIELD_HAS_BOTH(field); - - if (adjust_size) { - *width = clamp(*width, min_width, max_width); - *height = clamp(*height, min_height, max_height); - - /* Round after clamping to avoid overflow. */ - *width = (*width + width_bias) & width_mask; - - if (adjust_crop) { - bttv_crop_adjust(c, b, *width, *height, field); - - if (btv->vbi_end > c->rect.top) { - /* Move the crop window out of the way. */ - c->rect.top = btv->vbi_end; - } - } - } else { - rc = -EINVAL; - if (*width < min_width || - *height < min_height || - *width > max_width || - *height > max_height || - 0 != (*width & ~width_mask)) - goto fail; - } - - rc = 0; /* success */ - - fail: - - return rc; -} - -/* Returns an error if the given overlay window dimensions are not - possible with the current cropping parameters. If adjust_size is - TRUE the function may adjust the window width and/or height - instead, however it always rounds the horizontal position and - width as btcx_align() does. If adjust_crop is TRUE the function - may also adjust the current cropping parameters to get closer - to the desired window size. */ -static int -verify_window_lock (struct bttv_fh * fh, - struct v4l2_window * win, - int adjust_size, - int adjust_crop) -{ - enum v4l2_field field; - unsigned int width_mask; - int rc; - - if (win->w.width < 48 || win->w.height < 32) - return -EINVAL; - if (win->clipcount > 2048) - return -EINVAL; - - field = win->field; - - if (V4L2_FIELD_ANY == field) { - __s32 height2; - - height2 = fh->btv->crop[!!fh->do_crop].rect.height >> 1; - field = (win->w.height > height2) - ? V4L2_FIELD_INTERLACED - : V4L2_FIELD_TOP; - } - switch (field) { - case V4L2_FIELD_TOP: - case V4L2_FIELD_BOTTOM: - case V4L2_FIELD_INTERLACED: - break; - default: - return -EINVAL; - } - - /* 4-byte alignment. */ - if (NULL == fh->ovfmt) - return -EINVAL; - width_mask = ~0; - switch (fh->ovfmt->depth) { - case 8: - case 24: - width_mask = ~3; - break; - case 16: - width_mask = ~1; - break; - case 32: - break; - default: - BUG(); - } - - win->w.width -= win->w.left & ~width_mask; - win->w.left = (win->w.left - width_mask - 1) & width_mask; - - rc = limit_scaled_size_lock(fh, &win->w.width, &win->w.height, - field, width_mask, - /* width_bias: round down */ 0, - adjust_size, adjust_crop); - if (0 != rc) - return rc; - - win->field = field; - return 0; -} - -static int setup_window_lock(struct bttv_fh *fh, struct bttv *btv, - struct v4l2_window *win, int fixup) -{ - struct v4l2_clip *clips = NULL; - int n,size,retval = 0; - - if (NULL == fh->ovfmt) - return -EINVAL; - if (!(fh->ovfmt->flags & FORMAT_FLAGS_PACKED)) - return -EINVAL; - retval = verify_window_lock(fh, win, - /* adjust_size */ fixup, - /* adjust_crop */ fixup); - if (0 != retval) - return retval; - - /* copy clips -- luckily v4l1 + v4l2 are binary - compatible here ...*/ - n = win->clipcount; - size = sizeof(*clips)*(n+4); - clips = kmalloc(size,GFP_KERNEL); - if (NULL == clips) - return -ENOMEM; - if (n > 0) { - if (copy_from_user(clips,win->clips,sizeof(struct v4l2_clip)*n)) { - kfree(clips); - return -EFAULT; - } - } - - /* clip against screen */ - if (NULL != btv->fbuf.base) - n = btcx_screen_clips(btv->fbuf.fmt.width, btv->fbuf.fmt.height, - &win->w, clips, n); - btcx_sort_clips(clips,n); - - /* 4-byte alignments */ - switch (fh->ovfmt->depth) { - case 8: - case 24: - btcx_align(&win->w, clips, n, 3); - break; - case 16: - btcx_align(&win->w, clips, n, 1); - break; - case 32: - /* no alignment fixups needed */ - break; - default: - BUG(); - } - - kfree(fh->ov.clips); - fh->ov.clips = clips; - fh->ov.nclips = n; - - fh->ov.w = win->w; - fh->ov.field = win->field; - fh->ov.setup_ok = 1; - - btv->init.ov.w.width = win->w.width; - btv->init.ov.w.height = win->w.height; - btv->init.ov.field = win->field; - - /* update overlay if needed */ - retval = 0; - if (check_btres(fh, RESOURCE_OVERLAY)) { - struct bttv_buffer *new; - - new = videobuf_sg_alloc(sizeof(*new)); - new->crop = btv->crop[!!fh->do_crop].rect; - bttv_overlay_risc(btv, &fh->ov, fh->ovfmt, new); - retval = bttv_switch_overlay(btv,fh,new); - } - return retval; -} - -/* ----------------------------------------------------------------------- */ - -static struct videobuf_queue* bttv_queue(struct bttv_fh *fh) -{ - struct videobuf_queue* q = NULL; - - switch (fh->type) { - case V4L2_BUF_TYPE_VIDEO_CAPTURE: - q = &fh->cap; - break; - case V4L2_BUF_TYPE_VBI_CAPTURE: - q = &fh->vbi; - break; - default: - BUG(); - } - return q; -} - -static int bttv_resource(struct bttv_fh *fh) -{ - int res = 0; - - switch (fh->type) { - case V4L2_BUF_TYPE_VIDEO_CAPTURE: - res = RESOURCE_VIDEO_STREAM; - break; - case V4L2_BUF_TYPE_VBI_CAPTURE: - res = RESOURCE_VBI; - break; - default: - BUG(); - } - return res; -} - -static int bttv_switch_type(struct bttv_fh *fh, enum v4l2_buf_type type) -{ - struct videobuf_queue *q = bttv_queue(fh); - int res = bttv_resource(fh); - - if (check_btres(fh,res)) - return -EBUSY; - if (videobuf_queue_is_busy(q)) - return -EBUSY; - fh->type = type; - return 0; -} - -static void -pix_format_set_size (struct v4l2_pix_format * f, - const struct bttv_format * fmt, - unsigned int width, - unsigned int height) -{ - f->width = width; - f->height = height; - - if (fmt->flags & FORMAT_FLAGS_PLANAR) { - f->bytesperline = width; /* Y plane */ - f->sizeimage = (width * height * fmt->depth) >> 3; - } else { - f->bytesperline = (width * fmt->depth) >> 3; - f->sizeimage = height * f->bytesperline; - } -} - -static int bttv_g_fmt_vid_cap(struct file *file, void *priv, - struct v4l2_format *f) -{ - struct bttv_fh *fh = priv; - - pix_format_set_size(&f->fmt.pix, fh->fmt, - fh->width, fh->height); - f->fmt.pix.field = fh->cap.field; - f->fmt.pix.pixelformat = fh->fmt->fourcc; - - return 0; -} - -static int bttv_g_fmt_vid_overlay(struct file *file, void *priv, - struct v4l2_format *f) -{ - struct bttv_fh *fh = priv; - - f->fmt.win.w = fh->ov.w; - f->fmt.win.field = fh->ov.field; - - return 0; -} - -static int bttv_try_fmt_vid_cap(struct file *file, void *priv, - struct v4l2_format *f) -{ - const struct bttv_format *fmt; - struct bttv_fh *fh = priv; - struct bttv *btv = fh->btv; - enum v4l2_field field; - __s32 width, height; - int rc; - - fmt = format_by_fourcc(f->fmt.pix.pixelformat); - if (NULL == fmt) - return -EINVAL; - - field = f->fmt.pix.field; - - if (V4L2_FIELD_ANY == field) { - __s32 height2; - - height2 = btv->crop[!!fh->do_crop].rect.height >> 1; - field = (f->fmt.pix.height > height2) - ? V4L2_FIELD_INTERLACED - : V4L2_FIELD_BOTTOM; - } - - if (V4L2_FIELD_SEQ_BT == field) - field = V4L2_FIELD_SEQ_TB; - - switch (field) { - case V4L2_FIELD_TOP: - case V4L2_FIELD_BOTTOM: - case V4L2_FIELD_ALTERNATE: - case V4L2_FIELD_INTERLACED: - break; - case V4L2_FIELD_SEQ_TB: - if (fmt->flags & FORMAT_FLAGS_PLANAR) - return -EINVAL; - break; - default: - return -EINVAL; - } - - width = f->fmt.pix.width; - height = f->fmt.pix.height; - - rc = limit_scaled_size_lock(fh, &width, &height, field, - /* width_mask: 4 pixels */ ~3, - /* width_bias: nearest */ 2, - /* adjust_size */ 1, - /* adjust_crop */ 0); - if (0 != rc) - return rc; - - /* update data for the application */ - f->fmt.pix.field = field; - pix_format_set_size(&f->fmt.pix, fmt, width, height); - - return 0; -} - -static int bttv_try_fmt_vid_overlay(struct file *file, void *priv, - struct v4l2_format *f) -{ - struct bttv_fh *fh = priv; - - return verify_window_lock(fh, &f->fmt.win, - /* adjust_size */ 1, - /* adjust_crop */ 0); -} - -static int bttv_s_fmt_vid_cap(struct file *file, void *priv, - struct v4l2_format *f) -{ - int retval; - const struct bttv_format *fmt; - struct bttv_fh *fh = priv; - struct bttv *btv = fh->btv; - __s32 width, height; - enum v4l2_field field; - - retval = bttv_switch_type(fh, f->type); - if (0 != retval) - return retval; - - retval = bttv_try_fmt_vid_cap(file, priv, f); - if (0 != retval) - return retval; - - width = f->fmt.pix.width; - height = f->fmt.pix.height; - field = f->fmt.pix.field; - - retval = limit_scaled_size_lock(fh, &width, &height, f->fmt.pix.field, - /* width_mask: 4 pixels */ ~3, - /* width_bias: nearest */ 2, - /* adjust_size */ 1, - /* adjust_crop */ 1); - if (0 != retval) - return retval; - - f->fmt.pix.field = field; - - fmt = format_by_fourcc(f->fmt.pix.pixelformat); - - /* update our state informations */ - fh->fmt = fmt; - fh->cap.field = f->fmt.pix.field; - fh->cap.last = V4L2_FIELD_NONE; - fh->width = f->fmt.pix.width; - fh->height = f->fmt.pix.height; - btv->init.fmt = fmt; - btv->init.width = f->fmt.pix.width; - btv->init.height = f->fmt.pix.height; - - return 0; -} - -static int bttv_s_fmt_vid_overlay(struct file *file, void *priv, - struct v4l2_format *f) -{ - struct bttv_fh *fh = priv; - struct bttv *btv = fh->btv; - - if (no_overlay > 0) { - pr_err("V4L2_BUF_TYPE_VIDEO_OVERLAY: no_overlay\n"); - return -EINVAL; - } - - return setup_window_lock(fh, btv, &f->fmt.win, 1); -} - -static int bttv_querycap(struct file *file, void *priv, - struct v4l2_capability *cap) -{ - struct bttv_fh *fh = priv; - struct bttv *btv = fh->btv; - - if (0 == v4l2) - return -EINVAL; - - strlcpy(cap->driver, "bttv", sizeof(cap->driver)); - strlcpy(cap->card, btv->video_dev->name, sizeof(cap->card)); - snprintf(cap->bus_info, sizeof(cap->bus_info), - "PCI:%s", pci_name(btv->c.pci)); - cap->capabilities = - V4L2_CAP_VIDEO_CAPTURE | - V4L2_CAP_VBI_CAPTURE | - V4L2_CAP_READWRITE | - V4L2_CAP_STREAMING; - if (no_overlay <= 0) - cap->capabilities |= V4L2_CAP_VIDEO_OVERLAY; - - /* - * No need to lock here: those vars are initialized during board - * probe and remains untouched during the rest of the driver lifecycle - */ - if (btv->has_saa6588) - cap->capabilities |= V4L2_CAP_RDS_CAPTURE; - if (btv->tuner_type != TUNER_ABSENT) - cap->capabilities |= V4L2_CAP_TUNER; - return 0; -} - -static int bttv_enum_fmt_cap_ovr(struct v4l2_fmtdesc *f) -{ - int index = -1, i; - - for (i = 0; i < FORMATS; i++) { - if (formats[i].fourcc != -1) - index++; - if ((unsigned int)index == f->index) - break; - } - if (FORMATS == i) - return -EINVAL; - - f->pixelformat = formats[i].fourcc; - strlcpy(f->description, formats[i].name, sizeof(f->description)); - - return i; -} - -static int bttv_enum_fmt_vid_cap(struct file *file, void *priv, - struct v4l2_fmtdesc *f) -{ - int rc = bttv_enum_fmt_cap_ovr(f); - - if (rc < 0) - return rc; - - return 0; -} - -static int bttv_enum_fmt_vid_overlay(struct file *file, void *priv, - struct v4l2_fmtdesc *f) -{ - int rc; - - if (no_overlay > 0) { - pr_err("V4L2_BUF_TYPE_VIDEO_OVERLAY: no_overlay\n"); - return -EINVAL; - } - - rc = bttv_enum_fmt_cap_ovr(f); - - if (rc < 0) - return rc; - - if (!(formats[rc].flags & FORMAT_FLAGS_PACKED)) - return -EINVAL; - - return 0; -} - -static int bttv_g_fbuf(struct file *file, void *f, - struct v4l2_framebuffer *fb) -{ - struct bttv_fh *fh = f; - struct bttv *btv = fh->btv; - - *fb = btv->fbuf; - fb->capability = V4L2_FBUF_CAP_LIST_CLIPPING; - if (fh->ovfmt) - fb->fmt.pixelformat = fh->ovfmt->fourcc; - return 0; -} - -static int bttv_overlay(struct file *file, void *f, unsigned int on) -{ - struct bttv_fh *fh = f; - struct bttv *btv = fh->btv; - struct bttv_buffer *new; - int retval = 0; - - if (on) { - /* verify args */ - if (unlikely(!btv->fbuf.base)) { - return -EINVAL; - } - if (unlikely(!fh->ov.setup_ok)) { - dprintk("%d: overlay: !setup_ok\n", btv->c.nr); - retval = -EINVAL; - } - if (retval) - return retval; - } - - if (!check_alloc_btres_lock(btv, fh, RESOURCE_OVERLAY)) - return -EBUSY; - - if (on) { - fh->ov.tvnorm = btv->tvnorm; - new = videobuf_sg_alloc(sizeof(*new)); - new->crop = btv->crop[!!fh->do_crop].rect; - bttv_overlay_risc(btv, &fh->ov, fh->ovfmt, new); - } else { - new = NULL; - } - - /* switch over */ - retval = bttv_switch_overlay(btv, fh, new); - return retval; -} - -static int bttv_s_fbuf(struct file *file, void *f, - struct v4l2_framebuffer *fb) -{ - struct bttv_fh *fh = f; - struct bttv *btv = fh->btv; - const struct bttv_format *fmt; - int retval; - - if (!capable(CAP_SYS_ADMIN) && - !capable(CAP_SYS_RAWIO)) - return -EPERM; - - /* check args */ - fmt = format_by_fourcc(fb->fmt.pixelformat); - if (NULL == fmt) - return -EINVAL; - if (0 == (fmt->flags & FORMAT_FLAGS_PACKED)) - return -EINVAL; - - retval = -EINVAL; - if (fb->flags & V4L2_FBUF_FLAG_OVERLAY) { - __s32 width = fb->fmt.width; - __s32 height = fb->fmt.height; - - retval = limit_scaled_size_lock(fh, &width, &height, - V4L2_FIELD_INTERLACED, - /* width_mask */ ~3, - /* width_bias */ 2, - /* adjust_size */ 0, - /* adjust_crop */ 0); - if (0 != retval) - return retval; - } - - /* ok, accept it */ - btv->fbuf.base = fb->base; - btv->fbuf.fmt.width = fb->fmt.width; - btv->fbuf.fmt.height = fb->fmt.height; - if (0 != fb->fmt.bytesperline) - btv->fbuf.fmt.bytesperline = fb->fmt.bytesperline; - else - btv->fbuf.fmt.bytesperline = btv->fbuf.fmt.width*fmt->depth/8; - - retval = 0; - fh->ovfmt = fmt; - btv->init.ovfmt = fmt; - if (fb->flags & V4L2_FBUF_FLAG_OVERLAY) { - fh->ov.w.left = 0; - fh->ov.w.top = 0; - fh->ov.w.width = fb->fmt.width; - fh->ov.w.height = fb->fmt.height; - btv->init.ov.w.width = fb->fmt.width; - btv->init.ov.w.height = fb->fmt.height; - kfree(fh->ov.clips); - fh->ov.clips = NULL; - fh->ov.nclips = 0; - - if (check_btres(fh, RESOURCE_OVERLAY)) { - struct bttv_buffer *new; - - new = videobuf_sg_alloc(sizeof(*new)); - new->crop = btv->crop[!!fh->do_crop].rect; - bttv_overlay_risc(btv, &fh->ov, fh->ovfmt, new); - retval = bttv_switch_overlay(btv, fh, new); - } - } - return retval; -} - -static int bttv_reqbufs(struct file *file, void *priv, - struct v4l2_requestbuffers *p) -{ - struct bttv_fh *fh = priv; - return videobuf_reqbufs(bttv_queue(fh), p); -} - -static int bttv_querybuf(struct file *file, void *priv, - struct v4l2_buffer *b) -{ - struct bttv_fh *fh = priv; - return videobuf_querybuf(bttv_queue(fh), b); -} - -static int bttv_qbuf(struct file *file, void *priv, struct v4l2_buffer *b) -{ - struct bttv_fh *fh = priv; - struct bttv *btv = fh->btv; - int res = bttv_resource(fh); - - if (!check_alloc_btres_lock(btv, fh, res)) - return -EBUSY; - - return videobuf_qbuf(bttv_queue(fh), b); -} - -static int bttv_dqbuf(struct file *file, void *priv, struct v4l2_buffer *b) -{ - struct bttv_fh *fh = priv; - return videobuf_dqbuf(bttv_queue(fh), b, - file->f_flags & O_NONBLOCK); -} - -static int bttv_streamon(struct file *file, void *priv, - enum v4l2_buf_type type) -{ - struct bttv_fh *fh = priv; - struct bttv *btv = fh->btv; - int res = bttv_resource(fh); - - if (!check_alloc_btres_lock(btv, fh, res)) - return -EBUSY; - return videobuf_streamon(bttv_queue(fh)); -} - - -static int bttv_streamoff(struct file *file, void *priv, - enum v4l2_buf_type type) -{ - struct bttv_fh *fh = priv; - struct bttv *btv = fh->btv; - int retval; - int res = bttv_resource(fh); - - - retval = videobuf_streamoff(bttv_queue(fh)); - if (retval < 0) - return retval; - free_btres_lock(btv, fh, res); - return 0; -} - -static int bttv_queryctrl(struct file *file, void *priv, - struct v4l2_queryctrl *c) -{ - struct bttv_fh *fh = priv; - struct bttv *btv = fh->btv; - const struct v4l2_queryctrl *ctrl; - - if ((c->id < V4L2_CID_BASE || - c->id >= V4L2_CID_LASTP1) && - (c->id < V4L2_CID_PRIVATE_BASE || - c->id >= V4L2_CID_PRIVATE_LASTP1)) - return -EINVAL; - - if (!btv->volume_gpio && (c->id == V4L2_CID_AUDIO_VOLUME)) - *c = no_ctl; - else { - ctrl = ctrl_by_id(c->id); - - *c = (NULL != ctrl) ? *ctrl : no_ctl; - } - - return 0; -} - -static int bttv_g_parm(struct file *file, void *f, - struct v4l2_streamparm *parm) -{ - struct bttv_fh *fh = f; - struct bttv *btv = fh->btv; - - v4l2_video_std_frame_period(bttv_tvnorms[btv->tvnorm].v4l2_id, - &parm->parm.capture.timeperframe); - - return 0; -} - -static int bttv_g_tuner(struct file *file, void *priv, - struct v4l2_tuner *t) -{ - struct bttv_fh *fh = priv; - struct bttv *btv = fh->btv; - - if (btv->tuner_type == TUNER_ABSENT) - return -EINVAL; - if (0 != t->index) - return -EINVAL; - - t->rxsubchans = V4L2_TUNER_SUB_MONO; - bttv_call_all(btv, tuner, g_tuner, t); - strcpy(t->name, "Television"); - t->capability = V4L2_TUNER_CAP_NORM; - t->type = V4L2_TUNER_ANALOG_TV; - if (btread(BT848_DSTATUS)&BT848_DSTATUS_HLOC) - t->signal = 0xffff; - - if (btv->audio_mode_gpio) - btv->audio_mode_gpio(btv, t, 0); - - return 0; -} - -static int bttv_g_priority(struct file *file, void *f, enum v4l2_priority *p) -{ - struct bttv_fh *fh = f; - struct bttv *btv = fh->btv; - - *p = v4l2_prio_max(&btv->prio); - - return 0; -} - -static int bttv_s_priority(struct file *file, void *f, - enum v4l2_priority prio) -{ - struct bttv_fh *fh = f; - struct bttv *btv = fh->btv; - int rc; - - rc = v4l2_prio_change(&btv->prio, &fh->prio, prio); - - return rc; -} - -static int bttv_cropcap(struct file *file, void *priv, - struct v4l2_cropcap *cap) -{ - struct bttv_fh *fh = priv; - struct bttv *btv = fh->btv; - - if (cap->type != V4L2_BUF_TYPE_VIDEO_CAPTURE && - cap->type != V4L2_BUF_TYPE_VIDEO_OVERLAY) - return -EINVAL; - - *cap = bttv_tvnorms[btv->tvnorm].cropcap; - - return 0; -} - -static int bttv_g_crop(struct file *file, void *f, struct v4l2_crop *crop) -{ - struct bttv_fh *fh = f; - struct bttv *btv = fh->btv; - - if (crop->type != V4L2_BUF_TYPE_VIDEO_CAPTURE && - crop->type != V4L2_BUF_TYPE_VIDEO_OVERLAY) - return -EINVAL; - - /* No fh->do_crop = 1; because btv->crop[1] may be - inconsistent with fh->width or fh->height and apps - do not expect a change here. */ - - crop->c = btv->crop[!!fh->do_crop].rect; - - return 0; -} - -static int bttv_s_crop(struct file *file, void *f, struct v4l2_crop *crop) -{ - struct bttv_fh *fh = f; - struct bttv *btv = fh->btv; - const struct v4l2_rect *b; - int retval; - struct bttv_crop c; - __s32 b_left; - __s32 b_top; - __s32 b_right; - __s32 b_bottom; - - if (crop->type != V4L2_BUF_TYPE_VIDEO_CAPTURE && - crop->type != V4L2_BUF_TYPE_VIDEO_OVERLAY) - return -EINVAL; - - /* Make sure tvnorm, vbi_end and the current cropping - parameters remain consistent until we're done. Note - read() may change vbi_end in check_alloc_btres_lock(). */ - retval = v4l2_prio_check(&btv->prio, fh->prio); - if (0 != retval) { - return retval; - } - - retval = -EBUSY; - - if (locked_btres(fh->btv, VIDEO_RESOURCES)) { - return retval; - } - - b = &bttv_tvnorms[btv->tvnorm].cropcap.bounds; - - b_left = b->left; - b_right = b_left + b->width; - b_bottom = b->top + b->height; - - b_top = max(b->top, btv->vbi_end); - if (b_top + 32 >= b_bottom) { - return retval; - } - - /* Min. scaled size 48 x 32. */ - c.rect.left = clamp(crop->c.left, b_left, b_right - 48); - c.rect.left = min(c.rect.left, (__s32) MAX_HDELAY); - - c.rect.width = clamp(crop->c.width, - 48, b_right - c.rect.left); - - c.rect.top = clamp(crop->c.top, b_top, b_bottom - 32); - /* Top and height must be a multiple of two. */ - c.rect.top = (c.rect.top + 1) & ~1; - - c.rect.height = clamp(crop->c.height, - 32, b_bottom - c.rect.top); - c.rect.height = (c.rect.height + 1) & ~1; - - bttv_crop_calc_limits(&c); - - btv->crop[1] = c; - - fh->do_crop = 1; - - if (fh->width < c.min_scaled_width) { - fh->width = c.min_scaled_width; - btv->init.width = c.min_scaled_width; - } else if (fh->width > c.max_scaled_width) { - fh->width = c.max_scaled_width; - btv->init.width = c.max_scaled_width; - } - - if (fh->height < c.min_scaled_height) { - fh->height = c.min_scaled_height; - btv->init.height = c.min_scaled_height; - } else if (fh->height > c.max_scaled_height) { - fh->height = c.max_scaled_height; - btv->init.height = c.max_scaled_height; - } - - return 0; -} - -static int bttv_g_audio(struct file *file, void *priv, struct v4l2_audio *a) -{ - if (unlikely(a->index)) - return -EINVAL; - - strcpy(a->name, "audio"); - return 0; -} - -static int bttv_s_audio(struct file *file, void *priv, struct v4l2_audio *a) -{ - if (unlikely(a->index)) - return -EINVAL; - - return 0; -} - -static ssize_t bttv_read(struct file *file, char __user *data, - size_t count, loff_t *ppos) -{ - struct bttv_fh *fh = file->private_data; - int retval = 0; - - if (fh->btv->errors) - bttv_reinit_bt848(fh->btv); - dprintk("%d: read count=%d type=%s\n", - fh->btv->c.nr, (int)count, v4l2_type_names[fh->type]); - - switch (fh->type) { - case V4L2_BUF_TYPE_VIDEO_CAPTURE: - if (!check_alloc_btres_lock(fh->btv, fh, RESOURCE_VIDEO_READ)) { - /* VIDEO_READ in use by another fh, - or VIDEO_STREAM by any fh. */ - return -EBUSY; - } - retval = videobuf_read_one(&fh->cap, data, count, ppos, - file->f_flags & O_NONBLOCK); - free_btres_lock(fh->btv, fh, RESOURCE_VIDEO_READ); - break; - case V4L2_BUF_TYPE_VBI_CAPTURE: - if (!check_alloc_btres_lock(fh->btv,fh,RESOURCE_VBI)) - return -EBUSY; - retval = videobuf_read_stream(&fh->vbi, data, count, ppos, 1, - file->f_flags & O_NONBLOCK); - break; - default: - BUG(); - } - return retval; -} - -static unsigned int bttv_poll(struct file *file, poll_table *wait) -{ - struct bttv_fh *fh = file->private_data; - struct bttv_buffer *buf; - enum v4l2_field field; - unsigned int rc = POLLERR; - - if (V4L2_BUF_TYPE_VBI_CAPTURE == fh->type) { - if (!check_alloc_btres_lock(fh->btv,fh,RESOURCE_VBI)) - return POLLERR; - return videobuf_poll_stream(file, &fh->vbi, wait); - } - - if (check_btres(fh,RESOURCE_VIDEO_STREAM)) { - /* streaming capture */ - if (list_empty(&fh->cap.stream)) - goto err; - buf = list_entry(fh->cap.stream.next,struct bttv_buffer,vb.stream); - } else { - /* read() capture */ - if (NULL == fh->cap.read_buf) { - /* need to capture a new frame */ - if (locked_btres(fh->btv,RESOURCE_VIDEO_STREAM)) - goto err; - fh->cap.read_buf = videobuf_sg_alloc(fh->cap.msize); - if (NULL == fh->cap.read_buf) - goto err; - fh->cap.read_buf->memory = V4L2_MEMORY_USERPTR; - field = videobuf_next_field(&fh->cap); - if (0 != fh->cap.ops->buf_prepare(&fh->cap,fh->cap.read_buf,field)) { - kfree (fh->cap.read_buf); - fh->cap.read_buf = NULL; - goto err; - } - fh->cap.ops->buf_queue(&fh->cap,fh->cap.read_buf); - fh->cap.read_off = 0; - } - buf = (struct bttv_buffer*)fh->cap.read_buf; - } - - poll_wait(file, &buf->vb.done, wait); - if (buf->vb.state == VIDEOBUF_DONE || - buf->vb.state == VIDEOBUF_ERROR) - rc = POLLIN|POLLRDNORM; - else - rc = 0; -err: - return rc; -} - -static int bttv_open(struct file *file) -{ - struct video_device *vdev = video_devdata(file); - struct bttv *btv = video_drvdata(file); - struct bttv_fh *fh; - enum v4l2_buf_type type = 0; - - dprintk("open dev=%s\n", video_device_node_name(vdev)); - - if (vdev->vfl_type == VFL_TYPE_GRABBER) { - type = V4L2_BUF_TYPE_VIDEO_CAPTURE; - } else if (vdev->vfl_type == VFL_TYPE_VBI) { - type = V4L2_BUF_TYPE_VBI_CAPTURE; - } else { - WARN_ON(1); - return -ENODEV; - } - - dprintk("%d: open called (type=%s)\n", - btv->c.nr, v4l2_type_names[type]); - - /* allocate per filehandle data */ - fh = kmalloc(sizeof(*fh), GFP_KERNEL); - if (unlikely(!fh)) - return -ENOMEM; - file->private_data = fh; - - *fh = btv->init; - - fh->type = type; - fh->ov.setup_ok = 0; - - v4l2_prio_open(&btv->prio, &fh->prio); - - videobuf_queue_sg_init(&fh->cap, &bttv_video_qops, - &btv->c.pci->dev, &btv->s_lock, - V4L2_BUF_TYPE_VIDEO_CAPTURE, - V4L2_FIELD_INTERLACED, - sizeof(struct bttv_buffer), - fh, &btv->lock); - videobuf_queue_sg_init(&fh->vbi, &bttv_vbi_qops, - &btv->c.pci->dev, &btv->s_lock, - V4L2_BUF_TYPE_VBI_CAPTURE, - V4L2_FIELD_SEQ_TB, - sizeof(struct bttv_buffer), - fh, &btv->lock); - set_tvnorm(btv,btv->tvnorm); - set_input(btv, btv->input, btv->tvnorm); - - btv->users++; - - /* The V4L2 spec requires one global set of cropping parameters - which only change on request. These are stored in btv->crop[1]. - However for compatibility with V4L apps and cropping unaware - V4L2 apps we now reset the cropping parameters as seen through - this fh, which is to say VIDIOC_G_CROP and scaling limit checks - will use btv->crop[0], the default cropping parameters for the - current video standard, and VIDIOC_S_FMT will not implicitely - change the cropping parameters until VIDIOC_S_CROP has been - called. */ - fh->do_crop = !reset_crop; /* module parameter */ - - /* Likewise there should be one global set of VBI capture - parameters, but for compatibility with V4L apps and earlier - driver versions each fh has its own parameters. */ - bttv_vbi_fmt_reset(&fh->vbi_fmt, btv->tvnorm); - - bttv_field_count(btv); - return 0; -} - -static int bttv_release(struct file *file) -{ - struct bttv_fh *fh = file->private_data; - struct bttv *btv = fh->btv; - - /* turn off overlay */ - if (check_btres(fh, RESOURCE_OVERLAY)) - bttv_switch_overlay(btv,fh,NULL); - - /* stop video capture */ - if (check_btres(fh, RESOURCE_VIDEO_STREAM)) { - videobuf_streamoff(&fh->cap); - free_btres_lock(btv,fh,RESOURCE_VIDEO_STREAM); - } - if (fh->cap.read_buf) { - buffer_release(&fh->cap,fh->cap.read_buf); - kfree(fh->cap.read_buf); - } - if (check_btres(fh, RESOURCE_VIDEO_READ)) { - free_btres_lock(btv, fh, RESOURCE_VIDEO_READ); - } - - /* stop vbi capture */ - if (check_btres(fh, RESOURCE_VBI)) { - videobuf_stop(&fh->vbi); - free_btres_lock(btv,fh,RESOURCE_VBI); - } - - /* free stuff */ - - videobuf_mmap_free(&fh->cap); - videobuf_mmap_free(&fh->vbi); - v4l2_prio_close(&btv->prio, fh->prio); - file->private_data = NULL; - kfree(fh); - - btv->users--; - bttv_field_count(btv); - - if (!btv->users) - audio_mute(btv, 1); - - return 0; -} - -static int -bttv_mmap(struct file *file, struct vm_area_struct *vma) -{ - struct bttv_fh *fh = file->private_data; - - dprintk("%d: mmap type=%s 0x%lx+%ld\n", - fh->btv->c.nr, v4l2_type_names[fh->type], - vma->vm_start, vma->vm_end - vma->vm_start); - return videobuf_mmap_mapper(bttv_queue(fh),vma); -} - -static const struct v4l2_file_operations bttv_fops = -{ - .owner = THIS_MODULE, - .open = bttv_open, - .release = bttv_release, - .unlocked_ioctl = video_ioctl2, - .read = bttv_read, - .mmap = bttv_mmap, - .poll = bttv_poll, -}; - -static const struct v4l2_ioctl_ops bttv_ioctl_ops = { - .vidioc_querycap = bttv_querycap, - .vidioc_enum_fmt_vid_cap = bttv_enum_fmt_vid_cap, - .vidioc_g_fmt_vid_cap = bttv_g_fmt_vid_cap, - .vidioc_try_fmt_vid_cap = bttv_try_fmt_vid_cap, - .vidioc_s_fmt_vid_cap = bttv_s_fmt_vid_cap, - .vidioc_enum_fmt_vid_overlay = bttv_enum_fmt_vid_overlay, - .vidioc_g_fmt_vid_overlay = bttv_g_fmt_vid_overlay, - .vidioc_try_fmt_vid_overlay = bttv_try_fmt_vid_overlay, - .vidioc_s_fmt_vid_overlay = bttv_s_fmt_vid_overlay, - .vidioc_g_fmt_vbi_cap = bttv_g_fmt_vbi_cap, - .vidioc_try_fmt_vbi_cap = bttv_try_fmt_vbi_cap, - .vidioc_s_fmt_vbi_cap = bttv_s_fmt_vbi_cap, - .vidioc_g_audio = bttv_g_audio, - .vidioc_s_audio = bttv_s_audio, - .vidioc_cropcap = bttv_cropcap, - .vidioc_reqbufs = bttv_reqbufs, - .vidioc_querybuf = bttv_querybuf, - .vidioc_qbuf = bttv_qbuf, - .vidioc_dqbuf = bttv_dqbuf, - .vidioc_s_std = bttv_s_std, - .vidioc_enum_input = bttv_enum_input, - .vidioc_g_input = bttv_g_input, - .vidioc_s_input = bttv_s_input, - .vidioc_queryctrl = bttv_queryctrl, - .vidioc_g_ctrl = bttv_g_ctrl, - .vidioc_s_ctrl = bttv_s_ctrl, - .vidioc_streamon = bttv_streamon, - .vidioc_streamoff = bttv_streamoff, - .vidioc_g_tuner = bttv_g_tuner, - .vidioc_s_tuner = bttv_s_tuner, - .vidioc_g_crop = bttv_g_crop, - .vidioc_s_crop = bttv_s_crop, - .vidioc_g_fbuf = bttv_g_fbuf, - .vidioc_s_fbuf = bttv_s_fbuf, - .vidioc_overlay = bttv_overlay, - .vidioc_g_priority = bttv_g_priority, - .vidioc_s_priority = bttv_s_priority, - .vidioc_g_parm = bttv_g_parm, - .vidioc_g_frequency = bttv_g_frequency, - .vidioc_s_frequency = bttv_s_frequency, - .vidioc_log_status = bttv_log_status, - .vidioc_querystd = bttv_querystd, -#ifdef CONFIG_VIDEO_ADV_DEBUG - .vidioc_g_register = bttv_g_register, - .vidioc_s_register = bttv_s_register, -#endif -}; - -static struct video_device bttv_video_template = { - .fops = &bttv_fops, - .ioctl_ops = &bttv_ioctl_ops, - .tvnorms = BTTV_NORMS, - .current_norm = V4L2_STD_PAL, -}; - -/* ----------------------------------------------------------------------- */ -/* radio interface */ - -static int radio_open(struct file *file) -{ - struct video_device *vdev = video_devdata(file); - struct bttv *btv = video_drvdata(file); - struct bttv_fh *fh; - - dprintk("open dev=%s\n", video_device_node_name(vdev)); - - dprintk("%d: open called (radio)\n", btv->c.nr); - - /* allocate per filehandle data */ - fh = kmalloc(sizeof(*fh), GFP_KERNEL); - if (unlikely(!fh)) - return -ENOMEM; - file->private_data = fh; - *fh = btv->init; - - v4l2_prio_open(&btv->prio, &fh->prio); - - btv->radio_user++; - - bttv_call_all(btv, tuner, s_radio); - audio_input(btv,TVAUDIO_INPUT_RADIO); - - return 0; -} - -static int radio_release(struct file *file) -{ - struct bttv_fh *fh = file->private_data; - struct bttv *btv = fh->btv; - struct saa6588_command cmd; - - v4l2_prio_close(&btv->prio, fh->prio); - file->private_data = NULL; - kfree(fh); - - btv->radio_user--; - - bttv_call_all(btv, core, ioctl, SAA6588_CMD_CLOSE, &cmd); - - return 0; -} - -static int radio_querycap(struct file *file, void *priv, - struct v4l2_capability *cap) -{ - struct bttv_fh *fh = priv; - struct bttv *btv = fh->btv; - - strcpy(cap->driver, "bttv"); - strlcpy(cap->card, btv->radio_dev->name, sizeof(cap->card)); - sprintf(cap->bus_info, "PCI:%s", pci_name(btv->c.pci)); - cap->capabilities = V4L2_CAP_TUNER; - - return 0; -} - -static int radio_g_tuner(struct file *file, void *priv, struct v4l2_tuner *t) -{ - struct bttv_fh *fh = priv; - struct bttv *btv = fh->btv; - - if (btv->tuner_type == TUNER_ABSENT) - return -EINVAL; - if (0 != t->index) - return -EINVAL; - strcpy(t->name, "Radio"); - t->type = V4L2_TUNER_RADIO; - - bttv_call_all(btv, tuner, g_tuner, t); - - if (btv->audio_mode_gpio) - btv->audio_mode_gpio(btv, t, 0); - - return 0; -} - -static int radio_enum_input(struct file *file, void *priv, - struct v4l2_input *i) -{ - if (i->index != 0) - return -EINVAL; - - strcpy(i->name, "Radio"); - i->type = V4L2_INPUT_TYPE_TUNER; - - return 0; -} - -static int radio_g_audio(struct file *file, void *priv, - struct v4l2_audio *a) -{ - if (unlikely(a->index)) - return -EINVAL; - - strcpy(a->name, "Radio"); - - return 0; -} - -static int radio_s_tuner(struct file *file, void *priv, - struct v4l2_tuner *t) -{ - struct bttv_fh *fh = priv; - struct bttv *btv = fh->btv; - - if (0 != t->index) - return -EINVAL; - - bttv_call_all(btv, tuner, s_tuner, t); - return 0; -} - -static int radio_s_audio(struct file *file, void *priv, - struct v4l2_audio *a) -{ - if (unlikely(a->index)) - return -EINVAL; - - return 0; -} - -static int radio_s_input(struct file *filp, void *priv, unsigned int i) -{ - if (unlikely(i)) - return -EINVAL; - - return 0; -} - -static int radio_s_std(struct file *file, void *fh, v4l2_std_id *norm) -{ - return 0; -} - -static int radio_queryctrl(struct file *file, void *priv, - struct v4l2_queryctrl *c) -{ - const struct v4l2_queryctrl *ctrl; - - if (c->id < V4L2_CID_BASE || - c->id >= V4L2_CID_LASTP1) - return -EINVAL; - - if (c->id == V4L2_CID_AUDIO_MUTE) { - ctrl = ctrl_by_id(c->id); - *c = *ctrl; - } else - *c = no_ctl; - - return 0; -} - -static int radio_g_input(struct file *filp, void *priv, unsigned int *i) -{ - *i = 0; - return 0; -} - -static ssize_t radio_read(struct file *file, char __user *data, - size_t count, loff_t *ppos) -{ - struct bttv_fh *fh = file->private_data; - struct bttv *btv = fh->btv; - struct saa6588_command cmd; - cmd.block_count = count/3; - cmd.buffer = data; - cmd.instance = file; - cmd.result = -ENODEV; - - bttv_call_all(btv, core, ioctl, SAA6588_CMD_READ, &cmd); - - return cmd.result; -} - -static unsigned int radio_poll(struct file *file, poll_table *wait) -{ - struct bttv_fh *fh = file->private_data; - struct bttv *btv = fh->btv; - struct saa6588_command cmd; - cmd.instance = file; - cmd.event_list = wait; - cmd.result = -ENODEV; - bttv_call_all(btv, core, ioctl, SAA6588_CMD_POLL, &cmd); - - return cmd.result; -} - -static const struct v4l2_file_operations radio_fops = -{ - .owner = THIS_MODULE, - .open = radio_open, - .read = radio_read, - .release = radio_release, - .unlocked_ioctl = video_ioctl2, - .poll = radio_poll, -}; - -static const struct v4l2_ioctl_ops radio_ioctl_ops = { - .vidioc_querycap = radio_querycap, - .vidioc_g_tuner = radio_g_tuner, - .vidioc_enum_input = radio_enum_input, - .vidioc_g_audio = radio_g_audio, - .vidioc_s_tuner = radio_s_tuner, - .vidioc_s_audio = radio_s_audio, - .vidioc_s_input = radio_s_input, - .vidioc_s_std = radio_s_std, - .vidioc_queryctrl = radio_queryctrl, - .vidioc_g_input = radio_g_input, - .vidioc_g_ctrl = bttv_g_ctrl, - .vidioc_s_ctrl = bttv_s_ctrl, - .vidioc_g_frequency = bttv_g_frequency, - .vidioc_s_frequency = bttv_s_frequency, -}; - -static struct video_device radio_template = { - .fops = &radio_fops, - .ioctl_ops = &radio_ioctl_ops, -}; - -/* ----------------------------------------------------------------------- */ -/* some debug code */ - -static int bttv_risc_decode(u32 risc) -{ - static char *instr[16] = { - [ BT848_RISC_WRITE >> 28 ] = "write", - [ BT848_RISC_SKIP >> 28 ] = "skip", - [ BT848_RISC_WRITEC >> 28 ] = "writec", - [ BT848_RISC_JUMP >> 28 ] = "jump", - [ BT848_RISC_SYNC >> 28 ] = "sync", - [ BT848_RISC_WRITE123 >> 28 ] = "write123", - [ BT848_RISC_SKIP123 >> 28 ] = "skip123", - [ BT848_RISC_WRITE1S23 >> 28 ] = "write1s23", - }; - static int incr[16] = { - [ BT848_RISC_WRITE >> 28 ] = 2, - [ BT848_RISC_JUMP >> 28 ] = 2, - [ BT848_RISC_SYNC >> 28 ] = 2, - [ BT848_RISC_WRITE123 >> 28 ] = 5, - [ BT848_RISC_SKIP123 >> 28 ] = 2, - [ BT848_RISC_WRITE1S23 >> 28 ] = 3, - }; - static char *bits[] = { - "be0", "be1", "be2", "be3/resync", - "set0", "set1", "set2", "set3", - "clr0", "clr1", "clr2", "clr3", - "irq", "res", "eol", "sol", - }; - int i; - - pr_cont("0x%08x [ %s", risc, - instr[risc >> 28] ? instr[risc >> 28] : "INVALID"); - for (i = ARRAY_SIZE(bits)-1; i >= 0; i--) - if (risc & (1 << (i + 12))) - pr_cont(" %s", bits[i]); - pr_cont(" count=%d ]\n", risc & 0xfff); - return incr[risc >> 28] ? incr[risc >> 28] : 1; -} - -static void bttv_risc_disasm(struct bttv *btv, - struct btcx_riscmem *risc) -{ - unsigned int i,j,n; - - pr_info("%s: risc disasm: %p [dma=0x%08lx]\n", - btv->c.v4l2_dev.name, risc->cpu, (unsigned long)risc->dma); - for (i = 0; i < (risc->size >> 2); i += n) { - pr_info("%s: 0x%lx: ", - btv->c.v4l2_dev.name, - (unsigned long)(risc->dma + (i<<2))); - n = bttv_risc_decode(le32_to_cpu(risc->cpu[i])); - for (j = 1; j < n; j++) - pr_info("%s: 0x%lx: 0x%08x [ arg #%d ]\n", - btv->c.v4l2_dev.name, - (unsigned long)(risc->dma + ((i+j)<<2)), - risc->cpu[i+j], j); - if (0 == risc->cpu[i]) - break; - } -} - -static void bttv_print_riscaddr(struct bttv *btv) -{ - pr_info(" main: %08llx\n", (unsigned long long)btv->main.dma); - pr_info(" vbi : o=%08llx e=%08llx\n", - btv->cvbi ? (unsigned long long)btv->cvbi->top.dma : 0, - btv->cvbi ? (unsigned long long)btv->cvbi->bottom.dma : 0); - pr_info(" cap : o=%08llx e=%08llx\n", - btv->curr.top - ? (unsigned long long)btv->curr.top->top.dma : 0, - btv->curr.bottom - ? (unsigned long long)btv->curr.bottom->bottom.dma : 0); - pr_info(" scr : o=%08llx e=%08llx\n", - btv->screen ? (unsigned long long)btv->screen->top.dma : 0, - btv->screen ? (unsigned long long)btv->screen->bottom.dma : 0); - bttv_risc_disasm(btv, &btv->main); -} - -/* ----------------------------------------------------------------------- */ -/* irq handler */ - -static char *irq_name[] = { - "FMTCHG", // format change detected (525 vs. 625) - "VSYNC", // vertical sync (new field) - "HSYNC", // horizontal sync - "OFLOW", // chroma/luma AGC overflow - "HLOCK", // horizontal lock changed - "VPRES", // video presence changed - "6", "7", - "I2CDONE", // hw irc operation finished - "GPINT", // gpio port triggered irq - "10", - "RISCI", // risc instruction triggered irq - "FBUS", // pixel data fifo dropped data (high pci bus latencies) - "FTRGT", // pixel data fifo overrun - "FDSR", // fifo data stream resyncronisation - "PPERR", // parity error (data transfer) - "RIPERR", // parity error (read risc instructions) - "PABORT", // pci abort - "OCERR", // risc instruction error - "SCERR", // syncronisation error -}; - -static void bttv_print_irqbits(u32 print, u32 mark) -{ - unsigned int i; - - pr_cont("bits:"); - for (i = 0; i < ARRAY_SIZE(irq_name); i++) { - if (print & (1 << i)) - pr_cont(" %s", irq_name[i]); - if (mark & (1 << i)) - pr_cont("*"); - } -} - -static void bttv_irq_debug_low_latency(struct bttv *btv, u32 rc) -{ - pr_warn("%d: irq: skipped frame [main=%lx,o_vbi=%lx,o_field=%lx,rc=%lx]\n", - btv->c.nr, - (unsigned long)btv->main.dma, - (unsigned long)le32_to_cpu(btv->main.cpu[RISC_SLOT_O_VBI+1]), - (unsigned long)le32_to_cpu(btv->main.cpu[RISC_SLOT_O_FIELD+1]), - (unsigned long)rc); - - if (0 == (btread(BT848_DSTATUS) & BT848_DSTATUS_HLOC)) { - pr_notice("%d: Oh, there (temporarily?) is no input signal. " - "Ok, then this is harmless, don't worry ;)\n", - btv->c.nr); - return; - } - pr_notice("%d: Uhm. Looks like we have unusual high IRQ latencies\n", - btv->c.nr); - pr_notice("%d: Lets try to catch the culpit red-handed ...\n", - btv->c.nr); - dump_stack(); -} - -static int -bttv_irq_next_video(struct bttv *btv, struct bttv_buffer_set *set) -{ - struct bttv_buffer *item; - - memset(set,0,sizeof(*set)); - - /* capture request ? */ - if (!list_empty(&btv->capture)) { - set->frame_irq = 1; - item = list_entry(btv->capture.next, struct bttv_buffer, vb.queue); - if (V4L2_FIELD_HAS_TOP(item->vb.field)) - set->top = item; - if (V4L2_FIELD_HAS_BOTTOM(item->vb.field)) - set->bottom = item; - - /* capture request for other field ? */ - if (!V4L2_FIELD_HAS_BOTH(item->vb.field) && - (item->vb.queue.next != &btv->capture)) { - item = list_entry(item->vb.queue.next, struct bttv_buffer, vb.queue); - /* Mike Isely <isely@pobox.com> - Only check - * and set up the bottom field in the logic - * below. Don't ever do the top field. This - * of course means that if we set up the - * bottom field in the above code that we'll - * actually skip a field. But that's OK. - * Having processed only a single buffer this - * time, then the next time around the first - * available buffer should be for a top field. - * That will then cause us here to set up a - * top then a bottom field in the normal way. - * The alternative to this understanding is - * that we set up the second available buffer - * as a top field, but that's out of order - * since this driver always processes the top - * field first - the effect will be the two - * buffers being returned in the wrong order, - * with the second buffer also being delayed - * by one field time (owing to the fifo nature - * of videobuf). Worse still, we'll be stuck - * doing fields out of order now every time - * until something else causes a field to be - * dropped. By effectively forcing a field to - * drop this way then we always get back into - * sync within a single frame time. (Out of - * order fields can screw up deinterlacing - * algorithms.) */ - if (!V4L2_FIELD_HAS_BOTH(item->vb.field)) { - if (NULL == set->bottom && - V4L2_FIELD_BOTTOM == item->vb.field) { - set->bottom = item; - } - if (NULL != set->top && NULL != set->bottom) - set->top_irq = 2; - } - } - } - - /* screen overlay ? */ - if (NULL != btv->screen) { - if (V4L2_FIELD_HAS_BOTH(btv->screen->vb.field)) { - if (NULL == set->top && NULL == set->bottom) { - set->top = btv->screen; - set->bottom = btv->screen; - } - } else { - if (V4L2_FIELD_TOP == btv->screen->vb.field && - NULL == set->top) { - set->top = btv->screen; - } - if (V4L2_FIELD_BOTTOM == btv->screen->vb.field && - NULL == set->bottom) { - set->bottom = btv->screen; - } - } - } - - dprintk("%d: next set: top=%p bottom=%p [screen=%p,irq=%d,%d]\n", - btv->c.nr, set->top, set->bottom, - btv->screen, set->frame_irq, set->top_irq); - return 0; -} - -static void -bttv_irq_wakeup_video(struct bttv *btv, struct bttv_buffer_set *wakeup, - struct bttv_buffer_set *curr, unsigned int state) -{ - struct timeval ts; - - do_gettimeofday(&ts); - - if (wakeup->top == wakeup->bottom) { - if (NULL != wakeup->top && curr->top != wakeup->top) { - if (irq_debug > 1) - pr_debug("%d: wakeup: both=%p\n", - btv->c.nr, wakeup->top); - wakeup->top->vb.ts = ts; - wakeup->top->vb.field_count = btv->field_count; - wakeup->top->vb.state = state; - wake_up(&wakeup->top->vb.done); - } - } else { - if (NULL != wakeup->top && curr->top != wakeup->top) { - if (irq_debug > 1) - pr_debug("%d: wakeup: top=%p\n", - btv->c.nr, wakeup->top); - wakeup->top->vb.ts = ts; - wakeup->top->vb.field_count = btv->field_count; - wakeup->top->vb.state = state; - wake_up(&wakeup->top->vb.done); - } - if (NULL != wakeup->bottom && curr->bottom != wakeup->bottom) { - if (irq_debug > 1) - pr_debug("%d: wakeup: bottom=%p\n", - btv->c.nr, wakeup->bottom); - wakeup->bottom->vb.ts = ts; - wakeup->bottom->vb.field_count = btv->field_count; - wakeup->bottom->vb.state = state; - wake_up(&wakeup->bottom->vb.done); - } - } -} - -static void -bttv_irq_wakeup_vbi(struct bttv *btv, struct bttv_buffer *wakeup, - unsigned int state) -{ - struct timeval ts; - - if (NULL == wakeup) - return; - - do_gettimeofday(&ts); - wakeup->vb.ts = ts; - wakeup->vb.field_count = btv->field_count; - wakeup->vb.state = state; - wake_up(&wakeup->vb.done); -} - -static void bttv_irq_timeout(unsigned long data) -{ - struct bttv *btv = (struct bttv *)data; - struct bttv_buffer_set old,new; - struct bttv_buffer *ovbi; - struct bttv_buffer *item; - unsigned long flags; - - if (bttv_verbose) { - pr_info("%d: timeout: drop=%d irq=%d/%d, risc=%08x, ", - btv->c.nr, btv->framedrop, btv->irq_me, btv->irq_total, - btread(BT848_RISC_COUNT)); - bttv_print_irqbits(btread(BT848_INT_STAT),0); - pr_cont("\n"); - } - - spin_lock_irqsave(&btv->s_lock,flags); - - /* deactivate stuff */ - memset(&new,0,sizeof(new)); - old = btv->curr; - ovbi = btv->cvbi; - btv->curr = new; - btv->cvbi = NULL; - btv->loop_irq = 0; - bttv_buffer_activate_video(btv, &new); - bttv_buffer_activate_vbi(btv, NULL); - bttv_set_dma(btv, 0); - - /* wake up */ - bttv_irq_wakeup_video(btv, &old, &new, VIDEOBUF_ERROR); - bttv_irq_wakeup_vbi(btv, ovbi, VIDEOBUF_ERROR); - - /* cancel all outstanding capture / vbi requests */ - while (!list_empty(&btv->capture)) { - item = list_entry(btv->capture.next, struct bttv_buffer, vb.queue); - list_del(&item->vb.queue); - item->vb.state = VIDEOBUF_ERROR; - wake_up(&item->vb.done); - } - while (!list_empty(&btv->vcapture)) { - item = list_entry(btv->vcapture.next, struct bttv_buffer, vb.queue); - list_del(&item->vb.queue); - item->vb.state = VIDEOBUF_ERROR; - wake_up(&item->vb.done); - } - - btv->errors++; - spin_unlock_irqrestore(&btv->s_lock,flags); -} - -static void -bttv_irq_wakeup_top(struct bttv *btv) -{ - struct bttv_buffer *wakeup = btv->curr.top; - - if (NULL == wakeup) - return; - - spin_lock(&btv->s_lock); - btv->curr.top_irq = 0; - btv->curr.top = NULL; - bttv_risc_hook(btv, RISC_SLOT_O_FIELD, NULL, 0); - - do_gettimeofday(&wakeup->vb.ts); - wakeup->vb.field_count = btv->field_count; - wakeup->vb.state = VIDEOBUF_DONE; - wake_up(&wakeup->vb.done); - spin_unlock(&btv->s_lock); -} - -static inline int is_active(struct btcx_riscmem *risc, u32 rc) -{ - if (rc < risc->dma) - return 0; - if (rc > risc->dma + risc->size) - return 0; - return 1; -} - -static void -bttv_irq_switch_video(struct bttv *btv) -{ - struct bttv_buffer_set new; - struct bttv_buffer_set old; - dma_addr_t rc; - - spin_lock(&btv->s_lock); - - /* new buffer set */ - bttv_irq_next_video(btv, &new); - rc = btread(BT848_RISC_COUNT); - if ((btv->curr.top && is_active(&btv->curr.top->top, rc)) || - (btv->curr.bottom && is_active(&btv->curr.bottom->bottom, rc))) { - btv->framedrop++; - if (debug_latency) - bttv_irq_debug_low_latency(btv, rc); - spin_unlock(&btv->s_lock); - return; - } - - /* switch over */ - old = btv->curr; - btv->curr = new; - btv->loop_irq &= ~1; - bttv_buffer_activate_video(btv, &new); - bttv_set_dma(btv, 0); - - /* switch input */ - if (UNSET != btv->new_input) { - video_mux(btv,btv->new_input); - btv->new_input = UNSET; - } - - /* wake up finished buffers */ - bttv_irq_wakeup_video(btv, &old, &new, VIDEOBUF_DONE); - spin_unlock(&btv->s_lock); -} - -static void -bttv_irq_switch_vbi(struct bttv *btv) -{ - struct bttv_buffer *new = NULL; - struct bttv_buffer *old; - u32 rc; - - spin_lock(&btv->s_lock); - - if (!list_empty(&btv->vcapture)) - new = list_entry(btv->vcapture.next, struct bttv_buffer, vb.queue); - old = btv->cvbi; - - rc = btread(BT848_RISC_COUNT); - if (NULL != old && (is_active(&old->top, rc) || - is_active(&old->bottom, rc))) { - btv->framedrop++; - if (debug_latency) - bttv_irq_debug_low_latency(btv, rc); - spin_unlock(&btv->s_lock); - return; - } - - /* switch */ - btv->cvbi = new; - btv->loop_irq &= ~4; - bttv_buffer_activate_vbi(btv, new); - bttv_set_dma(btv, 0); - - bttv_irq_wakeup_vbi(btv, old, VIDEOBUF_DONE); - spin_unlock(&btv->s_lock); -} - -static irqreturn_t bttv_irq(int irq, void *dev_id) -{ - u32 stat,astat; - u32 dstat; - int count; - struct bttv *btv; - int handled = 0; - - btv=(struct bttv *)dev_id; - - count=0; - while (1) { - /* get/clear interrupt status bits */ - stat=btread(BT848_INT_STAT); - astat=stat&btread(BT848_INT_MASK); - if (!astat) - break; - handled = 1; - btwrite(stat,BT848_INT_STAT); - - /* get device status bits */ - dstat=btread(BT848_DSTATUS); - - if (irq_debug) { - pr_debug("%d: irq loop=%d fc=%d riscs=%x, riscc=%08x, ", - btv->c.nr, count, btv->field_count, - stat>>28, btread(BT848_RISC_COUNT)); - bttv_print_irqbits(stat,astat); - if (stat & BT848_INT_HLOCK) - pr_cont(" HLOC => %s", - dstat & BT848_DSTATUS_HLOC - ? "yes" : "no"); - if (stat & BT848_INT_VPRES) - pr_cont(" PRES => %s", - dstat & BT848_DSTATUS_PRES - ? "yes" : "no"); - if (stat & BT848_INT_FMTCHG) - pr_cont(" NUML => %s", - dstat & BT848_DSTATUS_NUML - ? "625" : "525"); - pr_cont("\n"); - } - - if (astat&BT848_INT_VSYNC) - btv->field_count++; - - if ((astat & BT848_INT_GPINT) && btv->remote) { - bttv_input_irq(btv); - } - - if (astat & BT848_INT_I2CDONE) { - btv->i2c_done = stat; - wake_up(&btv->i2c_queue); - } - - if ((astat & BT848_INT_RISCI) && (stat & (4<<28))) - bttv_irq_switch_vbi(btv); - - if ((astat & BT848_INT_RISCI) && (stat & (2<<28))) - bttv_irq_wakeup_top(btv); - - if ((astat & BT848_INT_RISCI) && (stat & (1<<28))) - bttv_irq_switch_video(btv); - - if ((astat & BT848_INT_HLOCK) && btv->opt_automute) - audio_mute(btv, btv->mute); /* trigger automute */ - - if (astat & (BT848_INT_SCERR|BT848_INT_OCERR)) { - pr_info("%d: %s%s @ %08x,", - btv->c.nr, - (astat & BT848_INT_SCERR) ? "SCERR" : "", - (astat & BT848_INT_OCERR) ? "OCERR" : "", - btread(BT848_RISC_COUNT)); - bttv_print_irqbits(stat,astat); - pr_cont("\n"); - if (bttv_debug) - bttv_print_riscaddr(btv); - } - if (fdsr && astat & BT848_INT_FDSR) { - pr_info("%d: FDSR @ %08x\n", - btv->c.nr, btread(BT848_RISC_COUNT)); - if (bttv_debug) - bttv_print_riscaddr(btv); - } - - count++; - if (count > 4) { - - if (count > 8 || !(astat & BT848_INT_GPINT)) { - btwrite(0, BT848_INT_MASK); - - pr_err("%d: IRQ lockup, cleared int mask [", - btv->c.nr); - } else { - pr_err("%d: IRQ lockup, clearing GPINT from int mask [", - btv->c.nr); - - btwrite(btread(BT848_INT_MASK) & (-1 ^ BT848_INT_GPINT), - BT848_INT_MASK); - }; - - bttv_print_irqbits(stat,astat); - - pr_cont("]\n"); - } - } - btv->irq_total++; - if (handled) - btv->irq_me++; - return IRQ_RETVAL(handled); -} - - -/* ----------------------------------------------------------------------- */ -/* initialitation */ - -static struct video_device *vdev_init(struct bttv *btv, - const struct video_device *template, - const char *type_name) -{ - struct video_device *vfd; - - vfd = video_device_alloc(); - if (NULL == vfd) - return NULL; - *vfd = *template; - vfd->v4l2_dev = &btv->c.v4l2_dev; - vfd->release = video_device_release; - vfd->debug = bttv_debug; - video_set_drvdata(vfd, btv); - snprintf(vfd->name, sizeof(vfd->name), "BT%d%s %s (%s)", - btv->id, (btv->id==848 && btv->revision==0x12) ? "A" : "", - type_name, bttv_tvcards[btv->c.type].name); - return vfd; -} - -static void bttv_unregister_video(struct bttv *btv) -{ - if (btv->video_dev) { - if (video_is_registered(btv->video_dev)) - video_unregister_device(btv->video_dev); - else - video_device_release(btv->video_dev); - btv->video_dev = NULL; - } - if (btv->vbi_dev) { - if (video_is_registered(btv->vbi_dev)) - video_unregister_device(btv->vbi_dev); - else - video_device_release(btv->vbi_dev); - btv->vbi_dev = NULL; - } - if (btv->radio_dev) { - if (video_is_registered(btv->radio_dev)) - video_unregister_device(btv->radio_dev); - else - video_device_release(btv->radio_dev); - btv->radio_dev = NULL; - } -} - -/* register video4linux devices */ -static int __devinit bttv_register_video(struct bttv *btv) -{ - if (no_overlay > 0) - pr_notice("Overlay support disabled\n"); - - /* video */ - btv->video_dev = vdev_init(btv, &bttv_video_template, "video"); - - if (NULL == btv->video_dev) - goto err; - if (video_register_device(btv->video_dev, VFL_TYPE_GRABBER, - video_nr[btv->c.nr]) < 0) - goto err; - pr_info("%d: registered device %s\n", - btv->c.nr, video_device_node_name(btv->video_dev)); - if (device_create_file(&btv->video_dev->dev, - &dev_attr_card)<0) { - pr_err("%d: device_create_file 'card' failed\n", btv->c.nr); - goto err; - } - - /* vbi */ - btv->vbi_dev = vdev_init(btv, &bttv_video_template, "vbi"); - - if (NULL == btv->vbi_dev) - goto err; - if (video_register_device(btv->vbi_dev, VFL_TYPE_VBI, - vbi_nr[btv->c.nr]) < 0) - goto err; - pr_info("%d: registered device %s\n", - btv->c.nr, video_device_node_name(btv->vbi_dev)); - - if (!btv->has_radio) - return 0; - /* radio */ - btv->radio_dev = vdev_init(btv, &radio_template, "radio"); - if (NULL == btv->radio_dev) - goto err; - if (video_register_device(btv->radio_dev, VFL_TYPE_RADIO, - radio_nr[btv->c.nr]) < 0) - goto err; - pr_info("%d: registered device %s\n", - btv->c.nr, video_device_node_name(btv->radio_dev)); - - /* all done */ - return 0; - - err: - bttv_unregister_video(btv); - return -1; -} - - -/* on OpenFirmware machines (PowerMac at least), PCI memory cycle */ -/* response on cards with no firmware is not enabled by OF */ -static void pci_set_command(struct pci_dev *dev) -{ -#if defined(__powerpc__) - unsigned int cmd; - - pci_read_config_dword(dev, PCI_COMMAND, &cmd); - cmd = (cmd | PCI_COMMAND_MEMORY ); - pci_write_config_dword(dev, PCI_COMMAND, cmd); -#endif -} - -static int __devinit bttv_probe(struct pci_dev *dev, - const struct pci_device_id *pci_id) -{ - int result; - unsigned char lat; - struct bttv *btv; - - if (bttv_num == BTTV_MAX) - return -ENOMEM; - pr_info("Bt8xx card found (%d)\n", bttv_num); - bttvs[bttv_num] = btv = kzalloc(sizeof(*btv), GFP_KERNEL); - if (btv == NULL) { - pr_err("out of memory\n"); - return -ENOMEM; - } - btv->c.nr = bttv_num; - snprintf(btv->c.v4l2_dev.name, sizeof(btv->c.v4l2_dev.name), - "bttv%d", btv->c.nr); - - /* initialize structs / fill in defaults */ - mutex_init(&btv->lock); - spin_lock_init(&btv->s_lock); - spin_lock_init(&btv->gpio_lock); - init_waitqueue_head(&btv->i2c_queue); - INIT_LIST_HEAD(&btv->c.subs); - INIT_LIST_HEAD(&btv->capture); - INIT_LIST_HEAD(&btv->vcapture); - v4l2_prio_init(&btv->prio); - - init_timer(&btv->timeout); - btv->timeout.function = bttv_irq_timeout; - btv->timeout.data = (unsigned long)btv; - - btv->i2c_rc = -1; - btv->tuner_type = UNSET; - btv->new_input = UNSET; - btv->has_radio=radio[btv->c.nr]; - - /* pci stuff (init, get irq/mmio, ... */ - btv->c.pci = dev; - btv->id = dev->device; - if (pci_enable_device(dev)) { - pr_warn("%d: Can't enable device\n", btv->c.nr); - return -EIO; - } - if (pci_set_dma_mask(dev, DMA_BIT_MASK(32))) { - pr_warn("%d: No suitable DMA available\n", btv->c.nr); - return -EIO; - } - if (!request_mem_region(pci_resource_start(dev,0), - pci_resource_len(dev,0), - btv->c.v4l2_dev.name)) { - pr_warn("%d: can't request iomem (0x%llx)\n", - btv->c.nr, - (unsigned long long)pci_resource_start(dev, 0)); - return -EBUSY; - } - pci_set_master(dev); - pci_set_command(dev); - - result = v4l2_device_register(&dev->dev, &btv->c.v4l2_dev); - if (result < 0) { - pr_warn("%d: v4l2_device_register() failed\n", btv->c.nr); - goto fail0; - } - - btv->revision = dev->revision; - pci_read_config_byte(dev, PCI_LATENCY_TIMER, &lat); - pr_info("%d: Bt%d (rev %d) at %s, irq: %d, latency: %d, mmio: 0x%llx\n", - bttv_num, btv->id, btv->revision, pci_name(dev), - btv->c.pci->irq, lat, - (unsigned long long)pci_resource_start(dev, 0)); - schedule(); - - btv->bt848_mmio = ioremap(pci_resource_start(dev, 0), 0x1000); - if (NULL == btv->bt848_mmio) { - pr_err("%d: ioremap() failed\n", btv->c.nr); - result = -EIO; - goto fail1; - } - - /* identify card */ - bttv_idcard(btv); - - /* disable irqs, register irq handler */ - btwrite(0, BT848_INT_MASK); - result = request_irq(btv->c.pci->irq, bttv_irq, - IRQF_SHARED | IRQF_DISABLED, btv->c.v4l2_dev.name, (void *)btv); - if (result < 0) { - pr_err("%d: can't get IRQ %d\n", - bttv_num, btv->c.pci->irq); - goto fail1; - } - - if (0 != bttv_handle_chipset(btv)) { - result = -EIO; - goto fail2; - } - - /* init options from insmod args */ - btv->opt_combfilter = combfilter; - btv->opt_lumafilter = lumafilter; - btv->opt_automute = automute; - btv->opt_chroma_agc = chroma_agc; - btv->opt_adc_crush = adc_crush; - btv->opt_vcr_hack = vcr_hack; - btv->opt_whitecrush_upper = whitecrush_upper; - btv->opt_whitecrush_lower = whitecrush_lower; - btv->opt_uv_ratio = uv_ratio; - btv->opt_full_luma_range = full_luma_range; - btv->opt_coring = coring; - - /* fill struct bttv with some useful defaults */ - btv->init.btv = btv; - btv->init.ov.w.width = 320; - btv->init.ov.w.height = 240; - btv->init.fmt = format_by_fourcc(V4L2_PIX_FMT_BGR24); - btv->init.width = 320; - btv->init.height = 240; - btv->input = 0; - - /* initialize hardware */ - if (bttv_gpio) - bttv_gpio_tracking(btv,"pre-init"); - - bttv_risc_init_main(btv); - init_bt848(btv); - - /* gpio */ - btwrite(0x00, BT848_GPIO_REG_INP); - btwrite(0x00, BT848_GPIO_OUT_EN); - if (bttv_verbose) - bttv_gpio_tracking(btv,"init"); - - /* needs to be done before i2c is registered */ - bttv_init_card1(btv); - - /* register i2c + gpio */ - init_bttv_i2c(btv); - - /* some card-specific stuff (needs working i2c) */ - bttv_init_card2(btv); - bttv_init_tuner(btv); - init_irqreg(btv); - - /* register video4linux + input */ - if (!bttv_tvcards[btv->c.type].no_video) { - bttv_register_video(btv); - bt848_bright(btv,32768); - bt848_contrast(btv, 27648); - bt848_hue(btv,32768); - bt848_sat(btv,32768); - audio_mute(btv, 1); - set_input(btv, 0, btv->tvnorm); - bttv_crop_reset(&btv->crop[0], btv->tvnorm); - btv->crop[1] = btv->crop[0]; /* current = default */ - disclaim_vbi_lines(btv); - disclaim_video_lines(btv); - } - - /* add subdevices and autoload dvb-bt8xx if needed */ - if (bttv_tvcards[btv->c.type].has_dvb) { - bttv_sub_add_device(&btv->c, "dvb"); - request_modules(btv); - } - - if (!disable_ir) { - init_bttv_i2c_ir(btv); - bttv_input_init(btv); - } - - /* everything is fine */ - bttv_num++; - return 0; - -fail2: - free_irq(btv->c.pci->irq,btv); - -fail1: - v4l2_device_unregister(&btv->c.v4l2_dev); - -fail0: - if (btv->bt848_mmio) - iounmap(btv->bt848_mmio); - release_mem_region(pci_resource_start(btv->c.pci,0), - pci_resource_len(btv->c.pci,0)); - return result; -} - -static void __devexit bttv_remove(struct pci_dev *pci_dev) -{ - struct v4l2_device *v4l2_dev = pci_get_drvdata(pci_dev); - struct bttv *btv = to_bttv(v4l2_dev); - - if (bttv_verbose) - pr_info("%d: unloading\n", btv->c.nr); - - if (bttv_tvcards[btv->c.type].has_dvb) - flush_request_modules(btv); - - /* shutdown everything (DMA+IRQs) */ - btand(~15, BT848_GPIO_DMA_CTL); - btwrite(0, BT848_INT_MASK); - btwrite(~0x0, BT848_INT_STAT); - btwrite(0x0, BT848_GPIO_OUT_EN); - if (bttv_gpio) - bttv_gpio_tracking(btv,"cleanup"); - - /* tell gpio modules we are leaving ... */ - btv->shutdown=1; - bttv_input_fini(btv); - bttv_sub_del_devices(&btv->c); - - /* unregister i2c_bus + input */ - fini_bttv_i2c(btv); - - /* unregister video4linux */ - bttv_unregister_video(btv); - - /* free allocated memory */ - btcx_riscmem_free(btv->c.pci,&btv->main); - - /* free ressources */ - free_irq(btv->c.pci->irq,btv); - iounmap(btv->bt848_mmio); - release_mem_region(pci_resource_start(btv->c.pci,0), - pci_resource_len(btv->c.pci,0)); - - v4l2_device_unregister(&btv->c.v4l2_dev); - bttvs[btv->c.nr] = NULL; - kfree(btv); - - return; -} - -#ifdef CONFIG_PM -static int bttv_suspend(struct pci_dev *pci_dev, pm_message_t state) -{ - struct v4l2_device *v4l2_dev = pci_get_drvdata(pci_dev); - struct bttv *btv = to_bttv(v4l2_dev); - struct bttv_buffer_set idle; - unsigned long flags; - - dprintk("%d: suspend %d\n", btv->c.nr, state.event); - - /* stop dma + irqs */ - spin_lock_irqsave(&btv->s_lock,flags); - memset(&idle, 0, sizeof(idle)); - btv->state.video = btv->curr; - btv->state.vbi = btv->cvbi; - btv->state.loop_irq = btv->loop_irq; - btv->curr = idle; - btv->loop_irq = 0; - bttv_buffer_activate_video(btv, &idle); - bttv_buffer_activate_vbi(btv, NULL); - bttv_set_dma(btv, 0); - btwrite(0, BT848_INT_MASK); - spin_unlock_irqrestore(&btv->s_lock,flags); - - /* save bt878 state */ - btv->state.gpio_enable = btread(BT848_GPIO_OUT_EN); - btv->state.gpio_data = gpio_read(); - - /* save pci state */ - pci_save_state(pci_dev); - if (0 != pci_set_power_state(pci_dev, pci_choose_state(pci_dev, state))) { - pci_disable_device(pci_dev); - btv->state.disabled = 1; - } - return 0; -} - -static int bttv_resume(struct pci_dev *pci_dev) -{ - struct v4l2_device *v4l2_dev = pci_get_drvdata(pci_dev); - struct bttv *btv = to_bttv(v4l2_dev); - unsigned long flags; - int err; - - dprintk("%d: resume\n", btv->c.nr); - - /* restore pci state */ - if (btv->state.disabled) { - err=pci_enable_device(pci_dev); - if (err) { - pr_warn("%d: Can't enable device\n", btv->c.nr); - return err; - } - btv->state.disabled = 0; - } - err=pci_set_power_state(pci_dev, PCI_D0); - if (err) { - pci_disable_device(pci_dev); - pr_warn("%d: Can't enable device\n", btv->c.nr); - btv->state.disabled = 1; - return err; - } - - pci_restore_state(pci_dev); - - /* restore bt878 state */ - bttv_reinit_bt848(btv); - gpio_inout(0xffffff, btv->state.gpio_enable); - gpio_write(btv->state.gpio_data); - - /* restart dma */ - spin_lock_irqsave(&btv->s_lock,flags); - btv->curr = btv->state.video; - btv->cvbi = btv->state.vbi; - btv->loop_irq = btv->state.loop_irq; - bttv_buffer_activate_video(btv, &btv->curr); - bttv_buffer_activate_vbi(btv, btv->cvbi); - bttv_set_dma(btv, 0); - spin_unlock_irqrestore(&btv->s_lock,flags); - return 0; -} -#endif - -static struct pci_device_id bttv_pci_tbl[] = { - {PCI_VDEVICE(BROOKTREE, PCI_DEVICE_ID_BT848), 0}, - {PCI_VDEVICE(BROOKTREE, PCI_DEVICE_ID_BT849), 0}, - {PCI_VDEVICE(BROOKTREE, PCI_DEVICE_ID_BT878), 0}, - {PCI_VDEVICE(BROOKTREE, PCI_DEVICE_ID_BT879), 0}, - {PCI_VDEVICE(BROOKTREE, PCI_DEVICE_ID_FUSION879), 0}, - {0,} -}; - -MODULE_DEVICE_TABLE(pci, bttv_pci_tbl); - -static struct pci_driver bttv_pci_driver = { - .name = "bttv", - .id_table = bttv_pci_tbl, - .probe = bttv_probe, - .remove = __devexit_p(bttv_remove), -#ifdef CONFIG_PM - .suspend = bttv_suspend, - .resume = bttv_resume, -#endif -}; - -static int __init bttv_init_module(void) -{ - int ret; - - bttv_num = 0; - - pr_info("driver version %s loaded\n", BTTV_VERSION); - if (gbuffers < 2 || gbuffers > VIDEO_MAX_FRAME) - gbuffers = 2; - if (gbufsize > BTTV_MAX_FBUF) - gbufsize = BTTV_MAX_FBUF; - gbufsize = (gbufsize + PAGE_SIZE - 1) & PAGE_MASK; - if (bttv_verbose) - pr_info("using %d buffers with %dk (%d pages) each for capture\n", - gbuffers, gbufsize >> 10, gbufsize >> PAGE_SHIFT); - - bttv_check_chipset(); - - ret = bus_register(&bttv_sub_bus_type); - if (ret < 0) { - pr_warn("bus_register error: %d\n", ret); - return ret; - } - ret = pci_register_driver(&bttv_pci_driver); - if (ret < 0) - bus_unregister(&bttv_sub_bus_type); - - return ret; -} - -static void __exit bttv_cleanup_module(void) -{ - pci_unregister_driver(&bttv_pci_driver); - bus_unregister(&bttv_sub_bus_type); -} - -module_init(bttv_init_module); -module_exit(bttv_cleanup_module); - -/* - * Local variables: - * c-basic-offset: 8 - * End: - */ |