diff options
Diffstat (limited to 'drivers/media/video/bttv-driver.c')
| -rw-r--r-- | drivers/media/video/bttv-driver.c | 4116 |
1 files changed, 4116 insertions, 0 deletions
diff --git a/drivers/media/video/bttv-driver.c b/drivers/media/video/bttv-driver.c new file mode 100644 index 00000000000..c13f222fe6b --- /dev/null +++ b/drivers/media/video/bttv-driver.c @@ -0,0 +1,4116 @@ +/* + $Id: bttv-driver.c,v 1.37 2005/02/21 13:57:59 kraxel Exp $ + + 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> + + 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. +*/ + +#include <linux/init.h> +#include <linux/module.h> +#include <linux/moduleparam.h> +#include <linux/delay.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 <asm/io.h> +#include <asm/byteorder.h> + +#include "bttvp.h" + +unsigned int bttv_num; /* number of Bt848s in use */ +struct bttv bttvs[BTTV_MAX]; + +unsigned int bttv_debug = 0; +unsigned int bttv_verbose = 1; +unsigned int bttv_gpio = 0; + +/* config variables */ +#ifdef __BIG_ENDIAN +static unsigned int bigendian=1; +#else +static unsigned int bigendian=0; +#endif +static unsigned int radio[BTTV_MAX]; +static unsigned int irq_debug = 0; +static unsigned int gbuffers = 8; +static unsigned int gbufsize = 0x208000; + +static int video_nr = -1; +static int radio_nr = -1; +static int vbi_nr = -1; +static int debug_latency = 0; + +static unsigned int fdsr = 0; + +/* options */ +static unsigned int combfilter = 0; +static unsigned int lumafilter = 0; +static unsigned int automute = 1; +static unsigned int chroma_agc = 0; +static unsigned int adc_crush = 1; +static unsigned int whitecrush_upper = 0xCF; +static unsigned int whitecrush_lower = 0x7F; +static unsigned int vcr_hack = 0; +static unsigned int irq_iswitch = 0; + +/* 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(fdsr, int, 0444); +module_param(video_nr, int, 0444); +module_param(radio_nr, int, 0444); +module_param(vbi_nr, int, 0444); +module_param(gbuffers, int, 0444); +module_param(gbufsize, 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_array(radio, 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(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(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_DESCRIPTION("bttv - v4l/v4l2 driver module for bt848/878 based cards"); +MODULE_AUTHOR("Ralph Metzler & Marcus Metzler & Gerd Knorr"); +MODULE_LICENSE("GPL"); + +/* ----------------------------------------------------------------------- */ +/* sysfs */ + +static ssize_t show_card(struct class_device *cd, char *buf) +{ + struct video_device *vfd = to_video_device(cd); + struct bttv *btv = dev_get_drvdata(vfd->dev); + return sprintf(buf, "%d\n", btv ? btv->c.type : UNSET); +} +static CLASS_DEVICE_ATTR(card, S_IRUGO, show_card, NULL); + +/* ----------------------------------------------------------------------- */ +/* 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 + } +}; + +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, + .sram = 0, + },{ + .v4l2_id = V4L2_STD_NTSC_M, + .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, + .sram = 1, + },{ + .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? */ + },{ + .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, + },{ + .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, + },{ + .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, + },{ + .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, + },{ + /* 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, + } +}; +static const unsigned int BTTV_TVNORMS = ARRAY_SIZE(bttv_tvnorms); + +/* ----------------------------------------------------------------------- */ +/* bttv format list + packed pixel formats must come first */ +static const struct bttv_format bttv_formats[] = { + { + .name = "8 bpp, gray", + .palette = VIDEO_PALETTE_GREY, + .fourcc = V4L2_PIX_FMT_GREY, + .btformat = BT848_COLOR_FMT_Y8, + .depth = 8, + .flags = FORMAT_FLAGS_PACKED, + },{ + .name = "8 bpp, dithered color", + .palette = VIDEO_PALETTE_HI240, + .fourcc = V4L2_PIX_FMT_HI240, + .btformat = BT848_COLOR_FMT_RGB8, + .depth = 8, + .flags = FORMAT_FLAGS_PACKED | FORMAT_FLAGS_DITHER, + },{ + .name = "15 bpp RGB, le", + .palette = VIDEO_PALETTE_RGB555, + .fourcc = V4L2_PIX_FMT_RGB555, + .btformat = BT848_COLOR_FMT_RGB15, + .depth = 16, + .flags = FORMAT_FLAGS_PACKED, + },{ + .name = "15 bpp RGB, be", + .palette = -1, + .fourcc = V4L2_PIX_FMT_RGB555X, + .btformat = BT848_COLOR_FMT_RGB15, + .btswap = 0x03, /* byteswap */ + .depth = 16, + .flags = FORMAT_FLAGS_PACKED, + },{ + .name = "16 bpp RGB, le", + .palette = VIDEO_PALETTE_RGB565, + .fourcc = V4L2_PIX_FMT_RGB565, + .btformat = BT848_COLOR_FMT_RGB16, + .depth = 16, + .flags = FORMAT_FLAGS_PACKED, + },{ + .name = "16 bpp RGB, be", + .palette = -1, + .fourcc = V4L2_PIX_FMT_RGB565X, + .btformat = BT848_COLOR_FMT_RGB16, + .btswap = 0x03, /* byteswap */ + .depth = 16, + .flags = FORMAT_FLAGS_PACKED, + },{ + .name = "24 bpp RGB, le", + .palette = VIDEO_PALETTE_RGB24, + .fourcc = V4L2_PIX_FMT_BGR24, + .btformat = BT848_COLOR_FMT_RGB24, + .depth = 24, + .flags = FORMAT_FLAGS_PACKED, + },{ + .name = "32 bpp RGB, le", + .palette = VIDEO_PALETTE_RGB32, + .fourcc = V4L2_PIX_FMT_BGR32, + .btformat = BT848_COLOR_FMT_RGB32, + .depth = 32, + .flags = FORMAT_FLAGS_PACKED, + },{ + .name = "32 bpp RGB, be", + .palette = -1, + .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", + .palette = VIDEO_PALETTE_YUV422, + .fourcc = V4L2_PIX_FMT_YUYV, + .btformat = BT848_COLOR_FMT_YUY2, + .depth = 16, + .flags = FORMAT_FLAGS_PACKED, + },{ + .name = "4:2:2, packed, YUYV", + .palette = VIDEO_PALETTE_YUYV, + .fourcc = V4L2_PIX_FMT_YUYV, + .btformat = BT848_COLOR_FMT_YUY2, + .depth = 16, + .flags = FORMAT_FLAGS_PACKED, + },{ + .name = "4:2:2, packed, UYVY", + .palette = VIDEO_PALETTE_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", + .palette = VIDEO_PALETTE_YUV422P, + .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", + .palette = VIDEO_PALETTE_YUV420P, + .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", + .palette = -1, + .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", + .palette = VIDEO_PALETTE_YUV411P, + .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", + .palette = VIDEO_PALETTE_YUV410P, + .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", + .palette = -1, + .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", + .palette = VIDEO_PALETTE_RAW, + .fourcc = -1, + .btformat = BT848_COLOR_FMT_RAW, + .depth = 8, + .flags = FORMAT_FLAGS_RAW, + } +}; +static const unsigned int BTTV_FORMATS = ARRAY_SIZE(bttv_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_LASTP1 (V4L2_CID_PRIVATE_BASE + 8) + +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 = 32768, + .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, + } + +}; +static const int BTTV_CTLS = ARRAY_SIZE(bttv_ctls); + +/* ----------------------------------------------------------------------- */ +/* resource management */ + +static +int check_alloc_btres(struct bttv *btv, struct bttv_fh *fh, int bit) +{ + if (fh->resources & bit) + /* have it already allocated */ + return 1; + + /* is it free? */ + down(&btv->reslock); + if (btv->resources & bit) { + /* no, someone else uses it */ + up(&btv->reslock); + return 0; + } + /* it's free, grab it */ + fh->resources |= bit; + btv->resources |= bit; + up(&btv->reslock); + return 1; +} + +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); +} + +static +void free_btres(struct bttv *btv, struct bttv_fh *fh, int bits) +{ +#if 1 /* DEBUG */ + if ((fh->resources & bits) != bits) { + /* trying to free ressources not allocated by us ... */ + printk("bttv: BUG! (btres)\n"); + } +#endif + down(&btv->reslock); + fh->resources &= ~bits; + btv->resources &= ~bits; + up(&btv->reslock); +} + +/* ----------------------------------------------------------------------- */ +/* 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("bttv%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; + vprintk(KERN_INFO "bttv%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; + } + + vprintk(KERN_INFO "bttv%d: PLL: %d => %d ",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 */ + vprintk("."); + 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; + vprintk(" ok\n"); + return; + } + } + btv->pll.pll_current = -1; + vprintk("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 (UNSET == bttv_tvcards[btv->c.type].muxsel[btv->input]) { + dprintk("bttv%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("bttv: 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 >> 7; + val_v = ((color>>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_tvcards[btv->c.type].muxsel[input] & 3; + btaor(mux<<5, ~(3<<5), BT848_IFORM); + dprintk(KERN_DEBUG "bttv%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: off" +}; + +static int +audio_mux(struct bttv *btv, int mode) +{ + int val,mux,i2c_mux,signal; + + gpio_inout(bttv_tvcards[btv->c.type].gpiomask, + bttv_tvcards[btv->c.type].gpiomask); + signal = btread(BT848_DSTATUS) & BT848_DSTATUS_HLOC; + + switch (mode) { + case AUDIO_MUTE: + btv->audio |= AUDIO_MUTE; + break; + case AUDIO_UNMUTE: + btv->audio &= ~AUDIO_MUTE; + break; + case AUDIO_TUNER: + case AUDIO_RADIO: + case AUDIO_EXTERN: + case AUDIO_INTERN: + btv->audio &= AUDIO_MUTE; + btv->audio |= mode; + } + i2c_mux = mux = (btv->audio & AUDIO_MUTE) ? AUDIO_OFF : btv->audio; + if (btv->opt_automute && !signal && !btv->radio_user) + mux = AUDIO_OFF; +#if 0 + printk("bttv%d: amux: mode=%d audio=%d signal=%s mux=%d/%d irq=%s\n", + btv->c.nr, mode, btv->audio, signal ? "yes" : "no", + mux, i2c_mux, in_interrupt() ? "yes" : "no"); +#endif + + val = bttv_tvcards[btv->c.type].audiomux[mux]; + gpio_bits(bttv_tvcards[btv->c.type].gpiomask,val); + if (bttv_gpio) + bttv_gpio_tracking(btv,audio_modes[mux]); + if (!in_interrupt()) + bttv_call_i2c_clients(btv,AUDC_SET_INPUT,&(i2c_mux)); + return 0; +} + +static void +i2c_vidiocschan(struct bttv *btv) +{ + struct video_channel c; + + memset(&c,0,sizeof(c)); + c.norm = btv->tvnorm; + c.channel = btv->input; + bttv_call_i2c_clients(btv,VIDIOCSCHAN,&c); + if (btv->c.type == BTTV_VOODOOTV_FM) + bttv_tda9880_setnorm(btv,c.norm); +} + +static int +set_tvnorm(struct bttv *btv, unsigned int norm) +{ + const struct bttv_tvnorm *tvnorm; + + if (norm < 0 || norm >= BTTV_TVNORMS) + return -EINVAL; + + btv->tvnorm = norm; + tvnorm = &bttv_tvnorms[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_VOODOOTV_FM: + bttv_tda9880_setnorm(btv,norm); + break; +#if 0 + case BTTV_OSPREY540: + osprey_540_set_norm(btv,norm); + break; +#endif + } + return 0; +} + +static void +set_input(struct bttv *btv, unsigned int input) +{ + 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_mux(btv,(input == bttv_tvcards[btv->c.type].tuner ? + AUDIO_TUNER : AUDIO_EXTERN)); + set_tvnorm(btv,btv->tvnorm); + i2c_vidiocschan(btv); +} + +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_VPRES| + 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) + printk(KERN_INFO "bttv%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); +} + +static int get_control(struct bttv *btv, struct v4l2_control *c) +{ + struct video_audio va; + int i; + + for (i = 0; i < BTTV_CTLS; i++) + if (bttv_ctls[i].id == c->id) + break; + if (i == BTTV_CTLS) + return -EINVAL; + if (i >= 4 && i <= 8) { + memset(&va,0,sizeof(va)); + bttv_call_i2c_clients(btv, VIDIOCGAUDIO, &va); + if (btv->audio_hook) + btv->audio_hook(btv,&va,0); + } + 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: + c->value = (VIDEO_AUDIO_MUTE & va.flags) ? 1 : 0; + break; + case V4L2_CID_AUDIO_VOLUME: + c->value = va.volume; + break; + case V4L2_CID_AUDIO_BALANCE: + c->value = va.balance; + break; + case V4L2_CID_AUDIO_BASS: + c->value = va.bass; + break; + case V4L2_CID_AUDIO_TREBLE: + c->value = va.treble; + 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; + default: + return -EINVAL; + } + return 0; +} + +static int set_control(struct bttv *btv, struct v4l2_control *c) +{ + struct video_audio va; + int i,val; + + for (i = 0; i < BTTV_CTLS; i++) + if (bttv_ctls[i].id == c->id) + break; + if (i == BTTV_CTLS) + return -EINVAL; + if (i >= 4 && i <= 8) { + memset(&va,0,sizeof(va)); + bttv_call_i2c_clients(btv, VIDIOCGAUDIO, &va); + if (btv->audio_hook) + btv->audio_hook(btv,&va,0); + } + 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: + if (c->value) { + va.flags |= VIDEO_AUDIO_MUTE; + audio_mux(btv, AUDIO_MUTE); + } else { + va.flags &= ~VIDEO_AUDIO_MUTE; + audio_mux(btv, AUDIO_UNMUTE); + } + break; + + case V4L2_CID_AUDIO_VOLUME: + va.volume = c->value; + break; + case V4L2_CID_AUDIO_BALANCE: + va.balance = c->value; + break; + case V4L2_CID_AUDIO_BASS: + va.bass = c->value; + break; + case V4L2_CID_AUDIO_TREBLE: + va.treble = c->value; + 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; + default: + return -EINVAL; + } + if (i >= 4 && i <= 8) { + bttv_call_i2c_clients(btv, VIDIOCSAUDIO, &va); + if (btv->audio_hook) + btv->audio_hook(btv,&va,1); + } + 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); + printk(KERN_DEBUG "bttv%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_palette(int palette) +{ + unsigned int i; + + for (i = 0; i < BTTV_FORMATS; i++) { + if (-1 == bttv_formats[i].palette) + continue; + if (bttv_formats[i].palette == palette) + return bttv_formats+i; + } + return NULL; +} + +static const struct bttv_format* +format_by_fourcc(int fourcc) +{ + unsigned int i; + + for (i = 0; i < BTTV_FORMATS; i++) { + if (-1 == bttv_formats[i].fourcc) + continue; + if (bttv_formats[i].fourcc == fourcc) + return bttv_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 = STATE_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 == new) + free_btres(btv,fh,RESOURCE_OVERLAY); + if (NULL != old) { + dprintk("switch_overlay: old=%p state is %d\n",old,old->vb.state); + bttv_dma_free(btv, old); + kfree(old); + } + dprintk("switch_overlay: done\n"); + return retval; +} + +/* ----------------------------------------------------------------------- */ +/* video4linux (1) interface */ + +static int bttv_prepare_buffer(struct bttv *btv, struct bttv_buffer *buf, + const struct bttv_format *fmt, + unsigned int width, unsigned int height, + enum v4l2_field field) +{ + int redo_dma_risc = 0; + 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; + } else { + if (width < 48 || + height < 32 || + width > bttv_tvnorms[btv->tvnorm].swidth || + height > bttv_tvnorms[btv->tvnorm].sheight) + return -EINVAL; + 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 != btv->tvnorm || buf->fmt != fmt) { + buf->vb.width = width; + buf->vb.height = height; + buf->vb.field = field; + buf->tvnorm = btv->tvnorm; + buf->fmt = fmt; + redo_dma_risc = 1; + } + + /* alloc risc memory */ + if (STATE_NEEDS_INIT == buf->vb.state) { + redo_dma_risc = 1; + if (0 != (rc = videobuf_iolock(btv->c.pci,&buf->vb,&btv->fbuf))) + goto fail; + } + + if (redo_dma_risc) + if (0 != (rc = bttv_buffer_risc(btv,buf))) + goto fail; + + buf->vb.state = STATE_PREPARED; + return 0; + + fail: + bttv_dma_free(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; + while (*size * *count > gbuffers * gbufsize) + (*count)--; + 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(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 = STATE_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(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 const char *v4l1_ioctls[] = { + "?", "CGAP", "GCHAN", "SCHAN", "GTUNER", "STUNER", "GPICT", "SPICT", + "CCAPTURE", "GWIN", "SWIN", "GFBUF", "SFBUF", "KEY", "GFREQ", + "SFREQ", "GAUDIO", "SAUDIO", "SYNC", "MCAPTURE", "GMBUF", "GUNIT", + "GCAPTURE", "SCAPTURE", "SPLAYMODE", "SWRITEMODE", "GPLAYINFO", + "SMICROCODE", "GVBIFMT", "SVBIFMT" }; +#define V4L1_IOCTLS ARRAY_SIZE(v4l1_ioctls) + +static int bttv_common_ioctls(struct bttv *btv, unsigned int cmd, void *arg) +{ + switch (cmd) { + case BTTV_VERSION: + return BTTV_VERSION_CODE; + + /* *** v4l1 *** ************************************************ */ + case VIDIOCGFREQ: + { + unsigned long *freq = arg; + *freq = btv->freq; + return 0; + } + case VIDIOCSFREQ: + { + unsigned long *freq = arg; + down(&btv->lock); + btv->freq=*freq; + bttv_call_i2c_clients(btv,VIDIOCSFREQ,freq); + if (btv->has_matchbox && btv->radio_user) + tea5757_set_freq(btv,*freq); + up(&btv->lock); + return 0; + } + + case VIDIOCGTUNER: + { + struct video_tuner *v = arg; + + if (UNSET == bttv_tvcards[btv->c.type].tuner) + return -EINVAL; + if (v->tuner) /* Only tuner 0 */ + return -EINVAL; + strcpy(v->name, "Television"); + v->rangelow = 0; + v->rangehigh = 0x7FFFFFFF; + v->flags = VIDEO_TUNER_PAL|VIDEO_TUNER_NTSC|VIDEO_TUNER_SECAM; + v->mode = btv->tvnorm; + v->signal = (btread(BT848_DSTATUS)&BT848_DSTATUS_HLOC) ? 0xFFFF : 0; + bttv_call_i2c_clients(btv,cmd,v); + return 0; + } + case VIDIOCSTUNER: + { + struct video_tuner *v = arg; + + if (v->tuner) /* Only tuner 0 */ + return -EINVAL; + if (v->mode >= BTTV_TVNORMS) + return -EINVAL; + + down(&btv->lock); + set_tvnorm(btv,v->mode); + bttv_call_i2c_clients(btv,cmd,v); + up(&btv->lock); + return 0; + } + + case VIDIOCGCHAN: + { + struct video_channel *v = arg; + unsigned int channel = v->channel; + + if (channel >= bttv_tvcards[btv->c.type].video_inputs) + return -EINVAL; + v->tuners=0; + v->flags = VIDEO_VC_AUDIO; + v->type = VIDEO_TYPE_CAMERA; + v->norm = btv->tvnorm; + if (channel == bttv_tvcards[btv->c.type].tuner) { + strcpy(v->name,"Television"); + v->flags|=VIDEO_VC_TUNER; + v->type=VIDEO_TYPE_TV; + v->tuners=1; + } else if (channel == btv->svhs) { + strcpy(v->name,"S-Video"); + } else { + sprintf(v->name,"Composite%d",channel); + } + return 0; + } + case VIDIOCSCHAN: + { + struct video_channel *v = arg; + unsigned int channel = v->channel; + + if (channel >= bttv_tvcards[btv->c.type].video_inputs) + return -EINVAL; + if (v->norm >= BTTV_TVNORMS) + return -EINVAL; + + down(&btv->lock); + if (channel == btv->input && + v->norm == btv->tvnorm) { + /* nothing to do */ + up(&btv->lock); + return 0; + } + + btv->tvnorm = v->norm; + set_input(btv,v->channel); + up(&btv->lock); + return 0; + } + + case VIDIOCGAUDIO: + { + struct video_audio *v = arg; + + memset(v,0,sizeof(*v)); + strcpy(v->name,"Television"); + v->flags |= VIDEO_AUDIO_MUTABLE; + v->mode = VIDEO_SOUND_MONO; + + down(&btv->lock); + bttv_call_i2c_clients(btv,cmd,v); + + /* card specific hooks */ + if (btv->audio_hook) + btv->audio_hook(btv,v,0); + + up(&btv->lock); + return 0; + } + case VIDIOCSAUDIO: + { + struct video_audio *v = arg; + unsigned int audio = v->audio; + + if (audio >= bttv_tvcards[btv->c.type].audio_inputs) + return -EINVAL; + + down(&btv->lock); + audio_mux(btv, (v->flags&VIDEO_AUDIO_MUTE) ? AUDIO_MUTE : AUDIO_UNMUTE); + bttv_call_i2c_clients(btv,cmd,v); + + /* card specific hooks */ + if (btv->audio_hook) + btv->audio_hook(btv,v,1); + + up(&btv->lock); + return 0; + } + + /* *** v4l2 *** ************************************************ */ + case VIDIOC_ENUMSTD: + { + struct v4l2_standard *e = arg; + unsigned int index = e->index; + + if (index >= BTTV_TVNORMS) + return -EINVAL; + v4l2_video_std_construct(e, bttv_tvnorms[e->index].v4l2_id, + bttv_tvnorms[e->index].name); + e->index = index; + return 0; + } + case VIDIOC_G_STD: + { + v4l2_std_id *id = arg; + *id = bttv_tvnorms[btv->tvnorm].v4l2_id; + return 0; + } + case VIDIOC_S_STD: + { + v4l2_std_id *id = arg; + unsigned int i; + + for (i = 0; i < BTTV_TVNORMS; i++) + if (*id & bttv_tvnorms[i].v4l2_id) + break; + if (i == BTTV_TVNORMS) + return -EINVAL; + + down(&btv->lock); + set_tvnorm(btv,i); + i2c_vidiocschan(btv); + up(&btv->lock); + return 0; + } + case VIDIOC_QUERYSTD: + { + v4l2_std_id *id = arg; + + if (btread(BT848_DSTATUS) & BT848_DSTATUS_NUML) + *id = V4L2_STD_625_50; + else + *id = V4L2_STD_525_60; + return 0; + } + + case VIDIOC_ENUMINPUT: + { + struct v4l2_input *i = arg; + unsigned int n; + + n = i->index; + if (n >= bttv_tvcards[btv->c.type].video_inputs) + return -EINVAL; + memset(i,0,sizeof(*i)); + i->index = n; + i->type = V4L2_INPUT_TYPE_CAMERA; + i->audioset = 1; + if (i->index == bttv_tvcards[btv->c.type].tuner) { + 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; + } + for (n = 0; n < BTTV_TVNORMS; n++) + i->std |= bttv_tvnorms[n].v4l2_id; + return 0; + } + case VIDIOC_G_INPUT: + { + int *i = arg; + *i = btv->input; + return 0; + } + case VIDIOC_S_INPUT: + { + unsigned int *i = arg; + + if (*i > bttv_tvcards[btv->c.type].video_inputs) + return -EINVAL; + down(&btv->lock); + set_input(btv,*i); + up(&btv->lock); + return 0; + } + + case VIDIOC_G_TUNER: + { + struct v4l2_tuner *t = arg; + + if (UNSET == bttv_tvcards[btv->c.type].tuner) + return -EINVAL; + if (0 != t->index) + return -EINVAL; + down(&btv->lock); + memset(t,0,sizeof(*t)); + strcpy(t->name, "Television"); + t->type = V4L2_TUNER_ANALOG_TV; + t->rangehigh = 0xffffffffUL; + t->capability = V4L2_TUNER_CAP_NORM; + t->rxsubchans = V4L2_TUNER_SUB_MONO; + if (btread(BT848_DSTATUS)&BT848_DSTATUS_HLOC) + t->signal = 0xffff; + { + /* Hmmm ... */ + struct video_audio va; + memset(&va, 0, sizeof(struct video_audio)); + bttv_call_i2c_clients(btv, VIDIOCGAUDIO, &va); + if (btv->audio_hook) + btv->audio_hook(btv,&va,0); + if(va.mode & VIDEO_SOUND_STEREO) { + t->audmode = V4L2_TUNER_MODE_STEREO; + t->rxsubchans |= V4L2_TUNER_SUB_STEREO; + } + if(va.mode & VIDEO_SOUND_LANG1) { + t->audmode = V4L2_TUNER_MODE_LANG1; + t->rxsubchans = V4L2_TUNER_SUB_LANG1 + | V4L2_TUNER_SUB_LANG2; + } + } + /* FIXME: fill capability+audmode */ + up(&btv->lock); + return 0; + } + case VIDIOC_S_TUNER: + { + struct v4l2_tuner *t = arg; + + if (UNSET == bttv_tvcards[btv->c.type].tuner) + return -EINVAL; + if (0 != t->index) + return -EINVAL; + down(&btv->lock); + { + struct video_audio va; + memset(&va, 0, sizeof(struct video_audio)); + bttv_call_i2c_clients(btv, VIDIOCGAUDIO, &va); + if (t->audmode == V4L2_TUNER_MODE_MONO) + va.mode = VIDEO_SOUND_MONO; + else if (t->audmode == V4L2_TUNER_MODE_STEREO) + va.mode = VIDEO_SOUND_STEREO; + else if (t->audmode == V4L2_TUNER_MODE_LANG1) + va.mode = VIDEO_SOUND_LANG1; + else if (t->audmode == V4L2_TUNER_MODE_LANG2) + va.mode = VIDEO_SOUND_LANG2; + bttv_call_i2c_clients(btv, VIDIOCSAUDIO, &va); + if (btv->audio_hook) + btv->audio_hook(btv,&va,1); + } + up(&btv->lock); + return 0; + } + + case VIDIOC_G_FREQUENCY: + { + struct v4l2_frequency *f = arg; + + memset(f,0,sizeof(*f)); + f->type = V4L2_TUNER_ANALOG_TV; + f->frequency = btv->freq; + return 0; + } + case VIDIOC_S_FREQUENCY: + { + struct v4l2_frequency *f = arg; + + if (unlikely(f->tuner != 0)) + return -EINVAL; + if (unlikely(f->type != V4L2_TUNER_ANALOG_TV)) + return -EINVAL; + down(&btv->lock); + btv->freq = f->frequency; + bttv_call_i2c_clients(btv,VIDIOCSFREQ,&btv->freq); + if (btv->has_matchbox && btv->radio_user) + tea5757_set_freq(btv,btv->freq); + up(&btv->lock); + return 0; + } + + default: + return -ENOIOCTLCMD; + + } + return 0; +} + +static int verify_window(const struct bttv_tvnorm *tvn, + struct v4l2_window *win, int fixup) +{ + enum v4l2_field field; + int maxw, maxh; + + if (win->w.width < 48 || win->w.height < 32) + return -EINVAL; + if (win->clipcount > 2048) + return -EINVAL; + + field = win->field; + maxw = tvn->swidth; + maxh = tvn->sheight; + + if (V4L2_FIELD_ANY == field) { + field = (win->w.height > maxh/2) + ? V4L2_FIELD_INTERLACED + : V4L2_FIELD_TOP; + } + switch (field) { + case V4L2_FIELD_TOP: + case V4L2_FIELD_BOTTOM: + maxh = maxh / 2; + break; + case V4L2_FIELD_INTERLACED: + break; + default: + return -EINVAL; + } + + if (!fixup && (win->w.width > maxw || win->w.height > maxh)) + return -EINVAL; + + if (win->w.width > maxw) + win->w.width = maxw; + if (win->w.height > maxh) + win->w.height = maxh; + win->field = field; + return 0; +} + +static int setup_window(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(&bttv_tvnorms[btv->tvnorm],win,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(); + } + + down(&fh->cap.lock); + if (fh->ov.clips) + 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_alloc(sizeof(*new)); + bttv_overlay_risc(btv, &fh->ov, fh->ovfmt, new); + retval = bttv_switch_overlay(btv,fh,new); + } + up(&fh->cap.lock); + 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; + 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 int bttv_g_fmt(struct bttv_fh *fh, struct v4l2_format *f) +{ + switch (f->type) { + case V4L2_BUF_TYPE_VIDEO_CAPTURE: + memset(&f->fmt.pix,0,sizeof(struct v4l2_pix_format)); + f->fmt.pix.width = fh->width; + f->fmt.pix.height = fh->height; + f->fmt.pix.field = fh->cap.field; + f->fmt.pix.pixelformat = fh->fmt->fourcc; + f->fmt.pix.bytesperline = + (f->fmt.pix.width * fh->fmt->depth) >> 3; + f->fmt.pix.sizeimage = + f->fmt.pix.height * f->fmt.pix.bytesperline; + return 0; + case V4L2_BUF_TYPE_VIDEO_OVERLAY: + memset(&f->fmt.win,0,sizeof(struct v4l2_window)); + f->fmt.win.w = fh->ov.w; + f->fmt.win.field = fh->ov.field; + return 0; + case V4L2_BUF_TYPE_VBI_CAPTURE: + bttv_vbi_get_fmt(fh,f); + return 0; + default: + return -EINVAL; + } +} + +static int bttv_try_fmt(struct bttv_fh *fh, struct bttv *btv, + struct v4l2_format *f) +{ + switch (f->type) { + case V4L2_BUF_TYPE_VIDEO_CAPTURE: + { + const struct bttv_format *fmt; + enum v4l2_field field; + unsigned int maxw,maxh; + + fmt = format_by_fourcc(f->fmt.pix.pixelformat); + if (NULL == fmt) + return -EINVAL; + + /* fixup format */ + maxw = bttv_tvnorms[btv->tvnorm].swidth; + maxh = bttv_tvnorms[btv->tvnorm].sheight; + field = f->fmt.pix.field; + if (V4L2_FIELD_ANY == field) + field = (f->fmt.pix.height > maxh/2) + ? 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: + maxh = maxh/2; + break; + case V4L2_FIELD_INTERLACED: + break; + case V4L2_FIELD_SEQ_TB: + if (fmt->flags & FORMAT_FLAGS_PLANAR) + return -EINVAL; + break; + default: + return -EINVAL; + } + + /* update data for the application */ + f->fmt.pix.field = field; + if (f->fmt.pix.width < 48) + f->fmt.pix.width = 48; + if (f->fmt.pix.height < 32) + f->fmt.pix.height = 32; + if (f->fmt.pix.width > maxw) + f->fmt.pix.width = maxw; + if (f->fmt.pix.height > maxh) + f->fmt.pix.height = maxh; + f->fmt.pix.width &= ~0x03; + f->fmt.pix.bytesperline = + (f->fmt.pix.width * fmt->depth) >> 3; + f->fmt.pix.sizeimage = + f->fmt.pix.height * f->fmt.pix.bytesperline; + + return 0; + } + case V4L2_BUF_TYPE_VIDEO_OVERLAY: + return verify_window(&bttv_tvnorms[btv->tvnorm], + &f->fmt.win, 1); + case V4L2_BUF_TYPE_VBI_CAPTURE: + bttv_vbi_try_fmt(fh,f); + return 0; + default: + return -EINVAL; + } +} + +static int bttv_s_fmt(struct bttv_fh *fh, struct bttv *btv, + struct v4l2_format *f) +{ + int retval; + + switch (f->type) { + case V4L2_BUF_TYPE_VIDEO_CAPTURE: + { + const struct bttv_format *fmt; + + retval = bttv_switch_type(fh,f->type); + if (0 != retval) + return retval; + retval = bttv_try_fmt(fh,btv,f); + if (0 != retval) + return retval; + fmt = format_by_fourcc(f->fmt.pix.pixelformat); + + /* update our state informations */ + down(&fh->cap.lock); + 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; + up(&fh->cap.lock); + + return 0; + } + case V4L2_BUF_TYPE_VIDEO_OVERLAY: + return setup_window(fh, btv, &f->fmt.win, 1); + case V4L2_BUF_TYPE_VBI_CAPTURE: + retval = bttv_switch_type(fh,f->type); + if (0 != retval) + return retval; + if (locked_btres(fh->btv, RESOURCE_VBI)) + return -EBUSY; + bttv_vbi_try_fmt(fh,f); + bttv_vbi_setlines(fh,btv,f->fmt.vbi.count[0]); + bttv_vbi_get_fmt(fh,f); + return 0; + default: + return -EINVAL; + } +} + +static int bttv_do_ioctl(struct inode *inode, struct file *file, + unsigned int cmd, void *arg) +{ + struct bttv_fh *fh = file->private_data; + struct bttv *btv = fh->btv; + unsigned long flags; + int retval = 0; + + if (bttv_debug > 1) { + switch (_IOC_TYPE(cmd)) { + case 'v': + printk("bttv%d: ioctl 0x%x (v4l1, VIDIOC%s)\n", + btv->c.nr, cmd, (_IOC_NR(cmd) < V4L1_IOCTLS) ? + v4l1_ioctls[_IOC_NR(cmd)] : "???"); + break; + case 'V': + printk("bttv%d: ioctl 0x%x (v4l2, %s)\n", + btv->c.nr, cmd, v4l2_ioctl_names[_IOC_NR(cmd)]); + break; + default: + printk("bttv%d: ioctl 0x%x (???)\n", + btv->c.nr, cmd); + } + } + if (btv->errors) + bttv_reinit_bt848(btv); + + switch (cmd) { + case VIDIOCSFREQ: + case VIDIOCSTUNER: + case VIDIOCSCHAN: + case VIDIOC_S_CTRL: + case VIDIOC_S_STD: + case VIDIOC_S_INPUT: + case VIDIOC_S_TUNER: + case VIDIOC_S_FREQUENCY: + retval = v4l2_prio_check(&btv->prio,&fh->prio); + if (0 != retval) + return retval; + }; + + switch (cmd) { + + /* *** v4l1 *** ************************************************ */ + case VIDIOCGCAP: + { + struct video_capability *cap = arg; + + memset(cap,0,sizeof(*cap)); + strcpy(cap->name,btv->video_dev->name); + if (V4L2_BUF_TYPE_VBI_CAPTURE == fh->type) { + /* vbi */ + cap->type = VID_TYPE_TUNER|VID_TYPE_TELETEXT; + } else { + /* others */ + cap->type = VID_TYPE_CAPTURE| + VID_TYPE_TUNER| + VID_TYPE_OVERLAY| + VID_TYPE_CLIPPING| + VID_TYPE_SCALES; + cap->maxwidth = bttv_tvnorms[btv->tvnorm].swidth; + cap->maxheight = bttv_tvnorms[btv->tvnorm].sheight; + cap->minwidth = 48; + cap->minheight = 32; + } + cap->channels = bttv_tvcards[btv->c.type].video_inputs; + cap->audios = bttv_tvcards[btv->c.type].audio_inputs; + return 0; + } + + case VIDIOCGPICT: + { + struct video_picture *pic = arg; + + memset(pic,0,sizeof(*pic)); + pic->brightness = btv->bright; + pic->contrast = btv->contrast; + pic->hue = btv->hue; + pic->colour = btv->saturation; + if (fh->fmt) { + pic->depth = fh->fmt->depth; + pic->palette = fh->fmt->palette; + } + return 0; + } + case VIDIOCSPICT: + { + struct video_picture *pic = arg; + const struct bttv_format *fmt; + + fmt = format_by_palette(pic->palette); + if (NULL == fmt) + return -EINVAL; + down(&fh->cap.lock); + if (fmt->depth != pic->depth) { + retval = -EINVAL; + goto fh_unlock_and_return; + } + fh->ovfmt = fmt; + fh->fmt = fmt; + btv->init.ovfmt = fmt; + btv->init.fmt = fmt; + if (bigendian) { + /* dirty hack time: swap bytes for overlay if the + display adaptor is big endian (insmod option) */ + if (fmt->palette == VIDEO_PALETTE_RGB555 || + fmt->palette == VIDEO_PALETTE_RGB565 || + fmt->palette == VIDEO_PALETTE_RGB32) { + fh->ovfmt = fmt+1; + } + } + bt848_bright(btv,pic->brightness); + bt848_contrast(btv,pic->contrast); + bt848_hue(btv,pic->hue); + bt848_sat(btv,pic->colour); + up(&fh->cap.lock); + return 0; + } + + case VIDIOCGWIN: + { + struct video_window *win = arg; + + memset(win,0,sizeof(*win)); + win->x = fh->ov.w.left; + win->y = fh->ov.w.top; + win->width = fh->ov.w.width; + win->height = fh->ov.w.height; + return 0; + } + case VIDIOCSWIN: + { + struct video_window *win = arg; + struct v4l2_window w2; + + w2.field = V4L2_FIELD_ANY; + w2.w.left = win->x; + w2.w.top = win->y; + w2.w.width = win->width; + w2.w.height = win->height; + w2.clipcount = win->clipcount; + w2.clips = (struct v4l2_clip __user *)win->clips; + retval = setup_window(fh, btv, &w2, 0); + if (0 == retval) { + /* on v4l1 this ioctl affects the read() size too */ + fh->width = fh->ov.w.width; + fh->height = fh->ov.w.height; + btv->init.width = fh->ov.w.width; + btv->init.height = fh->ov.w.height; + } + return retval; + } + + case VIDIOCGFBUF: + { + struct video_buffer *fbuf = arg; + + fbuf->base = btv->fbuf.base; + fbuf->width = btv->fbuf.fmt.width; + fbuf->height = btv->fbuf.fmt.height; + fbuf->bytesperline = btv->fbuf.fmt.bytesperline; + if (fh->ovfmt) + fbuf->depth = fh->ovfmt->depth; + return 0; + } + case VIDIOCSFBUF: + { + struct video_buffer *fbuf = arg; + const struct bttv_format *fmt; + unsigned long end; + + if(!capable(CAP_SYS_ADMIN) && + !capable(CAP_SYS_RAWIO)) + return -EPERM; + end = (unsigned long)fbuf->base + + fbuf->height * fbuf->bytesperline; + down(&fh->cap.lock); + retval = -EINVAL; + + switch (fbuf->depth) { + case 8: + fmt = format_by_palette(VIDEO_PALETTE_HI240); + break; + case 16: + fmt = format_by_palette(VIDEO_PALETTE_RGB565); + break; + case 24: + fmt = format_by_palette(VIDEO_PALETTE_RGB24); + break; + case 32: + fmt = format_by_palette(VIDEO_PALETTE_RGB32); + break; + case 15: + fbuf->depth = 16; + fmt = format_by_palette(VIDEO_PALETTE_RGB555); + break; + default: + fmt = NULL; + break; + } + if (NULL == fmt) + goto fh_unlock_and_return; + + fh->ovfmt = fmt; + fh->fmt = fmt; + btv->init.ovfmt = fmt; + btv->init.fmt = fmt; + btv->fbuf.base = fbuf->base; + btv->fbuf.fmt.width = fbuf->width; + btv->fbuf.fmt.height = fbuf->height; + if (fbuf->bytesperline) + btv->fbuf.fmt.bytesperline = fbuf->bytesperline; + else + btv->fbuf.fmt.bytesperline = btv->fbuf.fmt.width*fbuf->depth/8; + up(&fh->cap.lock); + return 0; + } + + case VIDIOCCAPTURE: + case VIDIOC_OVERLAY: + { + struct bttv_buffer *new; + int *on = arg; + + if (*on) { + /* verify args */ + if (NULL == btv->fbuf.base) + return -EINVAL; + if (!fh->ov.setup_ok) { + dprintk("bttv%d: overlay: !setup_ok\n",btv->c.nr); + return -EINVAL; + } + } + + if (!check_alloc_btres(btv,fh,RESOURCE_OVERLAY)) + return -EBUSY; + + down(&fh->cap.lock); + if (*on) { + fh->ov.tvnorm = btv->tvnorm; + new = videobuf_alloc(sizeof(*new)); + bttv_overlay_risc(btv, &fh->ov, fh->ovfmt, new); + } else { + new = NULL; + } + + /* switch over */ + retval = bttv_switch_overlay(btv,fh,new); + up(&fh->cap.lock); + return retval; + } + + case VIDIOCGMBUF: + { + struct video_mbuf *mbuf = arg; + unsigned int i; + + down(&fh->cap.lock); + retval = videobuf_mmap_setup(&fh->cap,gbuffers,gbufsize, + V4L2_MEMORY_MMAP); + if (retval < 0) + goto fh_unlock_and_return; + memset(mbuf,0,sizeof(*mbuf)); + mbuf->frames = gbuffers; + mbuf->size = gbuffers * gbufsize; + for (i = 0; i < gbuffers; i++) + mbuf->offsets[i] = i * gbufsize; + up(&fh->cap.lock); + return 0; + } + case VIDIOCMCAPTURE: + { + struct video_mmap *vm = arg; + struct bttv_buffer *buf; + enum v4l2_field field; + + if (vm->frame >= VIDEO_MAX_FRAME) + return -EINVAL; + + down(&fh->cap.lock); + retval = -EINVAL; + buf = (struct bttv_buffer *)fh->cap.bufs[vm->frame]; + if (NULL == buf) + goto fh_unlock_and_return; + if (0 == buf->vb.baddr) + goto fh_unlock_and_return; + if (buf->vb.state == STATE_QUEUED || + buf->vb.state == STATE_ACTIVE) + goto fh_unlock_and_return; + + field = (vm->height > bttv_tvnorms[btv->tvnorm].sheight/2) + ? V4L2_FIELD_INTERLACED + : V4L2_FIELD_BOTTOM; + retval = bttv_prepare_buffer(btv,buf, + format_by_palette(vm->format), + vm->width,vm->height,field); + if (0 != retval) + goto fh_unlock_and_return; + spin_lock_irqsave(&btv->s_lock,flags); + buffer_queue(&fh->cap,&buf->vb); + spin_unlock_irqrestore(&btv->s_lock,flags); + up(&fh->cap.lock); + return 0; + } + case VIDIOCSYNC: + { + int *frame = arg; + struct bttv_buffer *buf; + + if (*frame >= VIDEO_MAX_FRAME) + return -EINVAL; + + down(&fh->cap.lock); + retval = -EINVAL; + buf = (struct bttv_buffer *)fh->cap.bufs[*frame]; + if (NULL == buf) + goto fh_unlock_and_return; + retval = videobuf_waiton(&buf->vb,0,1); + if (0 != retval) + goto fh_unlock_and_return; + switch (buf->vb.state) { + case STATE_ERROR: + retval = -EIO; + /* fall through */ + case STATE_DONE: + videobuf_dma_pci_sync(btv->c.pci,&buf->vb.dma); + bttv_dma_free(btv,buf); + break; + default: + retval = -EINVAL; + break; + } + up(&fh->cap.lock); + return retval; + } + + case VIDIOCGVBIFMT: + { + struct vbi_format *fmt = (void *) arg; + struct v4l2_format fmt2; + + if (fh->type != V4L2_BUF_TYPE_VBI_CAPTURE) { + retval = bttv_switch_type(fh,V4L2_BUF_TYPE_VBI_CAPTURE); + if (0 != retval) + return retval; + } + bttv_vbi_get_fmt(fh, &fmt2); + + memset(fmt,0,sizeof(*fmt)); + fmt->sampling_rate = fmt2.fmt.vbi.sampling_rate; + fmt->samples_per_line = fmt2.fmt.vbi.samples_per_line; + fmt->sample_format = VIDEO_PALETTE_RAW; + fmt->start[0] = fmt2.fmt.vbi.start[0]; + fmt->count[0] = fmt2.fmt.vbi.count[0]; + fmt->start[1] = fmt2.fmt.vbi.start[1]; + fmt->count[1] = fmt2.fmt.vbi.count[1]; + if (fmt2.fmt.vbi.flags & VBI_UNSYNC) + fmt->flags |= V4L2_VBI_UNSYNC; + if (fmt2.fmt.vbi.flags & VBI_INTERLACED) + fmt->flags |= V4L2_VBI_INTERLACED; + return 0; + } + case VIDIOCSVBIFMT: + { + struct vbi_format *fmt = (void *) arg; + struct v4l2_format fmt2; + + retval = bttv_switch_type(fh,V4L2_BUF_TYPE_VBI_CAPTURE); + if (0 != retval) + return retval; + bttv_vbi_get_fmt(fh, &fmt2); + + if (fmt->sampling_rate != fmt2.fmt.vbi.sampling_rate || + fmt->samples_per_line != fmt2.fmt.vbi.samples_per_line || + fmt->sample_format != VIDEO_PALETTE_RAW || + fmt->start[0] != fmt2.fmt.vbi.start[0] || + fmt->start[1] != fmt2.fmt.vbi.start[1] || + fmt->count[0] != fmt->count[1] || + fmt->count[0] < 1 || + fmt->count[0] > 32 /* VBI_MAXLINES */) + return -EINVAL; + + bttv_vbi_setlines(fh,btv,fmt->count[0]); + return 0; + } + + case BTTV_VERSION: + case VIDIOCGFREQ: + case VIDIOCSFREQ: + case VIDIOCGTUNER: + case VIDIOCSTUNER: + case VIDIOCGCHAN: + case VIDIOCSCHAN: + case VIDIOCGAUDIO: + case VIDIOCSAUDIO: + return bttv_common_ioctls(btv,cmd,arg); + + /* *** v4l2 *** ************************************************ */ + case VIDIOC_QUERYCAP: + { + struct v4l2_capability *cap = arg; + + if (0 == v4l2) + return -EINVAL; + strcpy(cap->driver,"bttv"); + strlcpy(cap->card,btv->video_dev->name,sizeof(cap->card)); + sprintf(cap->bus_info,"PCI:%s",pci_name(btv->c.pci)); + cap->version = BTTV_VERSION_CODE; + cap->capabilities = + V4L2_CAP_VIDEO_CAPTURE | + V4L2_CAP_VIDEO_OVERLAY | + V4L2_CAP_VBI_CAPTURE | + V4L2_CAP_READWRITE | + V4L2_CAP_STREAMING; + if (bttv_tvcards[btv->c.type].tuner != UNSET && + bttv_tvcards[btv->c.type].tuner != TUNER_ABSENT) + cap->capabilities |= V4L2_CAP_TUNER; + return 0; + } + + case VIDIOC_ENUM_FMT: + { + struct v4l2_fmtdesc *f = arg; + enum v4l2_buf_type type; + unsigned int i; + int index; + + type = f->type; + if (V4L2_BUF_TYPE_VBI_CAPTURE == type) { + /* vbi */ + index = f->index; + if (0 != index) + return -EINVAL; + memset(f,0,sizeof(*f)); + f->index = index; + f->type = type; + f->pixelformat = V4L2_PIX_FMT_GREY; + strcpy(f->description,"vbi data"); + return 0; + } + + /* video capture + overlay */ + index = -1; + for (i = 0; i < BTTV_FORMATS; i++) { + if (bttv_formats[i].fourcc != -1) + index++; + if ((unsigned int)index == f->index) + break; + } + if (BTTV_FORMATS == i) + return -EINVAL; + + switch (f->type) { + case V4L2_BUF_TYPE_VIDEO_CAPTURE: + break; + case V4L2_BUF_TYPE_VIDEO_OVERLAY: + if (!(bttv_formats[i].flags & FORMAT_FLAGS_PACKED)) + return -EINVAL; + break; + default: + return -EINVAL; + } + memset(f,0,sizeof(*f)); + f->index = index; + f->type = type; + f->pixelformat = bttv_formats[i].fourcc; + strlcpy(f->description,bttv_formats[i].name,sizeof(f->description)); + return 0; + } + + case VIDIOC_TRY_FMT: + { + struct v4l2_format *f = arg; + return bttv_try_fmt(fh,btv,f); + } + case VIDIOC_G_FMT: + { + struct v4l2_format *f = arg; + return bttv_g_fmt(fh,f); + } + case VIDIOC_S_FMT: + { + struct v4l2_format *f = arg; + return bttv_s_fmt(fh,btv,f); + } + + case VIDIOC_G_FBUF: + { + struct v4l2_framebuffer *fb = arg; + + *fb = btv->fbuf; + fb->capability = V4L2_FBUF_CAP_LIST_CLIPPING; + if (fh->ovfmt) + fb->fmt.pixelformat = fh->ovfmt->fourcc; + return 0; + } + case VIDIOC_S_FBUF: + { + struct v4l2_framebuffer *fb = arg; + const struct bttv_format *fmt; + + 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; + + down(&fh->cap.lock); + retval = -EINVAL; + if (fb->flags & V4L2_FBUF_FLAG_OVERLAY) { + if (fb->fmt.width > bttv_tvnorms[btv->tvnorm].swidth) + goto fh_unlock_and_return; + if (fb->fmt.height > bttv_tvnorms[btv->tvnorm].sheight) + goto fh_unlock_and_return; + } + + /* 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; + if (fh->ov.clips) + kfree(fh->ov.clips); + fh->ov.clips = NULL; + fh->ov.nclips = 0; + + if (check_btres(fh, RESOURCE_OVERLAY)) { + struct bttv_buffer *new; + + new = videobuf_alloc(sizeof(*new)); + bttv_overlay_risc(btv,&fh->ov,fh->ovfmt,new); + retval = bttv_switch_overlay(btv,fh,new); + } + } + up(&fh->cap.lock); + return retval; + } + + case VIDIOC_REQBUFS: + return videobuf_reqbufs(bttv_queue(fh),arg); + + case VIDIOC_QUERYBUF: + return videobuf_querybuf(bttv_queue(fh),arg); + + case VIDIOC_QBUF: + return videobuf_qbuf(bttv_queue(fh),arg); + + case VIDIOC_DQBUF: + return videobuf_dqbuf(bttv_queue(fh),arg, + file->f_flags & O_NONBLOCK); + + case VIDIOC_STREAMON: + { + int res = bttv_resource(fh); + + if (!check_alloc_btres(btv,fh,res)) + return -EBUSY; + return videobuf_streamon(bttv_queue(fh)); + } + case VIDIOC_STREAMOFF: + { + int res = bttv_resource(fh); + + retval = videobuf_streamoff(bttv_queue(fh)); + if (retval < 0) + return retval; + free_btres(btv,fh,res); + return 0; + } + + case VIDIOC_QUERYCTRL: + { + struct v4l2_queryctrl *c = arg; + int i; + + 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; + for (i = 0; i < BTTV_CTLS; i++) + if (bttv_ctls[i].id == c->id) + break; + if (i == BTTV_CTLS) { + *c = no_ctl; + return 0; + } + *c = bttv_ctls[i]; + if (i >= 4 && i <= 8) { + struct video_audio va; + memset(&va,0,sizeof(va)); + bttv_call_i2c_clients(btv, VIDIOCGAUDIO, &va); + if (btv->audio_hook) + btv->audio_hook(btv,&va,0); + switch (bttv_ctls[i].id) { + case V4L2_CID_AUDIO_VOLUME: + if (!(va.flags & VIDEO_AUDIO_VOLUME)) + *c = no_ctl; + break; + case V4L2_CID_AUDIO_BALANCE: + if (!(va.flags & VIDEO_AUDIO_BALANCE)) + *c = no_ctl; + break; + case V4L2_CID_AUDIO_BASS: + if (!(va.flags & VIDEO_AUDIO_BASS)) + *c = no_ctl; + break; + case V4L2_CID_AUDIO_TREBLE: + if (!(va.flags & VIDEO_AUDIO_TREBLE)) + *c = no_ctl; + break; + } + } + return 0; + } + case VIDIOC_G_CTRL: + return get_control(btv,arg); + case VIDIOC_S_CTRL: + return set_control(btv,arg); + case VIDIOC_G_PARM: + { + struct v4l2_streamparm *parm = arg; + struct v4l2_standard s; + if (parm->type != V4L2_BUF_TYPE_VIDEO_CAPTURE) + return -EINVAL; + memset(parm,0,sizeof(*parm)); + v4l2_video_std_construct(&s, bttv_tvnorms[btv->tvnorm].v4l2_id, + bttv_tvnorms[btv->tvnorm].name); + parm->parm.capture.timeperframe = s.frameperiod; + return 0; + } + + case VIDIOC_G_PRIORITY: + { + enum v4l2_priority *p = arg; + + *p = v4l2_prio_max(&btv->prio); + return 0; + } + case VIDIOC_S_PRIORITY: + { + enum v4l2_priority *prio = arg; + + return v4l2_prio_change(&btv->prio, &fh->prio, *prio); + } + + case VIDIOC_ENUMSTD: + case VIDIOC_G_STD: + case VIDIOC_S_STD: + case VIDIOC_ENUMINPUT: + case VIDIOC_G_INPUT: + case VIDIOC_S_INPUT: + case VIDIOC_G_TUNER: + case VIDIOC_S_TUNER: + case VIDIOC_G_FREQUENCY: + case VIDIOC_S_FREQUENCY: + return bttv_common_ioctls(btv,cmd,arg); + + default: + return -ENOIOCTLCMD; + } + return 0; + + fh_unlock_and_return: + up(&fh->cap.lock); + return retval; +} + +static int bttv_ioctl(struct inode *inode, struct file *file, + unsigned int cmd, unsigned long arg) +{ + struct bttv_fh *fh = file->private_data; + + switch (cmd) { + case BTTV_VBISIZE: + bttv_switch_type(fh,V4L2_BUF_TYPE_VBI_CAPTURE); + return fh->lines * 2 * 2048; + default: + return video_usercopy(inode, file, cmd, arg, bttv_do_ioctl); + } +} + +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("bttv%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 (locked_btres(fh->btv,RESOURCE_VIDEO)) + return -EBUSY; + retval = videobuf_read_one(&fh->cap, data, count, ppos, + file->f_flags & O_NONBLOCK); + break; + case V4L2_BUF_TYPE_VBI_CAPTURE: + if (!check_alloc_btres(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; + + if (V4L2_BUF_TYPE_VBI_CAPTURE == fh->type) { + if (!check_alloc_btres(fh->btv,fh,RESOURCE_VBI)) + return POLLERR; + return videobuf_poll_stream(file, &fh->vbi, wait); + } + + if (check_btres(fh,RESOURCE_VIDEO)) { + /* streaming capture */ + if (list_empty(&fh->cap.stream)) + return POLLERR; + buf = list_entry(fh->cap.stream.next,struct bttv_buffer,vb.stream); + } else { + /* read() capture */ + down(&fh->cap.lock); + if (NULL == fh->cap.read_buf) { + /* need to capture a new frame */ + if (locked_btres(fh->btv,RESOURCE_VIDEO)) { + up(&fh->cap.lock); + return POLLERR; + } + fh->cap.read_buf = videobuf_alloc(fh->cap.msize); + if (NULL == fh->cap.read_buf) { + up(&fh->cap.lock); + return POLLERR; + } + 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)) { + up(&fh->cap.lock); + return POLLERR; + } + fh->cap.ops->buf_queue(&fh->cap,fh->cap.read_buf); + fh->cap.read_off = 0; + } + up(&fh->cap.lock); + buf = (struct bttv_buffer*)fh->cap.read_buf; + } + + poll_wait(file, &buf->vb.done, wait); + if (buf->vb.state == STATE_DONE || + buf->vb.state == STATE_ERROR) + return POLLIN|POLLRDNORM; + return 0; +} + +static int bttv_open(struct inode *inode, struct file *file) +{ + int minor = iminor(inode); + struct bttv *btv = NULL; + struct bttv_fh *fh; + enum v4l2_buf_type type = 0; + unsigned int i; + + dprintk(KERN_DEBUG "bttv: open minor=%d\n",minor); + + for (i = 0; i < bttv_num; i++) { + if (bttvs[i].video_dev && + bttvs[i].video_dev->minor == minor) { + btv = &bttvs[i]; + type = V4L2_BUF_TYPE_VIDEO_CAPTURE; + break; + } + if (bttvs[i].vbi_dev && + bttvs[i].vbi_dev->minor == minor) { + btv = &bttvs[i]; + type = V4L2_BUF_TYPE_VBI_CAPTURE; + break; + } + } + if (NULL == btv) + return -ENODEV; + + dprintk(KERN_DEBUG "bttv%d: open called (type=%s)\n", + btv->c.nr,v4l2_type_names[type]); + + /* allocate per filehandle data */ + fh = kmalloc(sizeof(*fh),GFP_KERNEL); + if (NULL == 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_init(&fh->cap, &bttv_video_qops, + btv->c.pci, &btv->s_lock, + V4L2_BUF_TYPE_VIDEO_CAPTURE, + V4L2_FIELD_INTERLACED, + sizeof(struct bttv_buffer), + fh); + videobuf_queue_init(&fh->vbi, &bttv_vbi_qops, + btv->c.pci, &btv->s_lock, + V4L2_BUF_TYPE_VBI_CAPTURE, + V4L2_FIELD_SEQ_TB, + sizeof(struct bttv_buffer), + fh); + i2c_vidiocschan(btv); + + btv->users++; + if (V4L2_BUF_TYPE_VBI_CAPTURE == fh->type) + bttv_vbi_setlines(fh,btv,16); + bttv_field_count(btv); + return 0; +} + +static int bttv_release(struct inode *inode, 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)) { + videobuf_streamoff(&fh->cap); + free_btres(btv,fh,RESOURCE_VIDEO); + } + if (fh->cap.read_buf) { + buffer_release(&fh->cap,fh->cap.read_buf); + kfree(fh->cap.read_buf); + } + + /* stop vbi capture */ + if (check_btres(fh, RESOURCE_VBI)) { + if (fh->vbi.streaming) + videobuf_streamoff(&fh->vbi); + if (fh->vbi.reading) + videobuf_read_stop(&fh->vbi); + free_btres(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); + return 0; +} + +static int +bttv_mmap(struct file *file, struct vm_area_struct *vma) +{ + struct bttv_fh *fh = file->private_data; + + dprintk("bttv%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 struct file_operations bttv_fops = +{ + .owner = THIS_MODULE, + .open = bttv_open, + .release = bttv_release, + .ioctl = bttv_ioctl, + .llseek = no_llseek, + .read = bttv_read, + .mmap = bttv_mmap, + .poll = bttv_poll, +}; + +static struct video_device bttv_video_template = +{ + .name = "UNSET", + .type = VID_TYPE_CAPTURE|VID_TYPE_TUNER|VID_TYPE_OVERLAY| + VID_TYPE_CLIPPING|VID_TYPE_SCALES, + .hardware = VID_HARDWARE_BT848, + .fops = &bttv_fops, + .minor = -1, +}; + +static struct video_device bttv_vbi_template = +{ + .name = "bt848/878 vbi", + .type = VID_TYPE_TUNER|VID_TYPE_TELETEXT, + .hardware = VID_HARDWARE_BT848, + .fops = &bttv_fops, + .minor = -1, +}; + +/* ----------------------------------------------------------------------- */ +/* radio interface */ + +static int radio_open(struct inode *inode, struct file *file) +{ + int minor = iminor(inode); + struct bttv *btv = NULL; + unsigned int i; + + dprintk("bttv: open minor=%d\n",minor); + + for (i = 0; i < bttv_num; i++) { + if (bttvs[i].radio_dev->minor == minor) { + btv = &bttvs[i]; + break; + } + } + if (NULL == btv) + return -ENODEV; + + dprintk("bttv%d: open called (radio)\n",btv->c.nr); + down(&btv->lock); + if (btv->radio_user) { + up(&btv->lock); + return -EBUSY; + } + btv->radio_user++; + file->private_data = btv; + + i2c_vidiocschan(btv); + bttv_call_i2c_clients(btv,AUDC_SET_RADIO,&btv->tuner_type); + audio_mux(btv,AUDIO_RADIO); + + up(&btv->lock); + return 0; +} + +static int radio_release(struct inode *inode, struct file *file) +{ + struct bttv *btv = file->private_data; + + btv->radio_user--; + return 0; +} + +static int radio_do_ioctl(struct inode *inode, struct file *file, + unsigned int cmd, void *arg) +{ + struct bttv *btv = file->private_data; + + switch (cmd) { + case VIDIOCGCAP: + { + struct video_capability *cap = arg; + + memset(cap,0,sizeof(*cap)); + strcpy(cap->name,btv->radio_dev->name); + cap->type = VID_TYPE_TUNER; + cap->channels = 1; + cap->audios = 1; + return 0; + } + + case VIDIOCGTUNER: + { + struct video_tuner *v = arg; + + if(v->tuner) + return -EINVAL; + memset(v,0,sizeof(*v)); + strcpy(v->name, "Radio"); + /* japan: 76.0 MHz - 89.9 MHz + western europe: 87.5 MHz - 108.0 MHz + russia: 65.0 MHz - 108.0 MHz */ + v->rangelow=(int)(65*16); + v->rangehigh=(int)(108*16); + bttv_call_i2c_clients(btv,cmd,v); + return 0; + } + case VIDIOCSTUNER: + /* nothing to do */ + return 0; + + case BTTV_VERSION: + case VIDIOCGFREQ: + case VIDIOCSFREQ: + case VIDIOCGAUDIO: + case VIDIOCSAUDIO: + return bttv_common_ioctls(btv,cmd,arg); + + default: + return -ENOIOCTLCMD; + } + return 0; +} + +static int radio_ioctl(struct inode *inode, struct file *file, + unsigned int cmd, unsigned long arg) +{ + return video_usercopy(inode, file, cmd, arg, radio_do_ioctl); +} + +static struct file_operations radio_fops = +{ + .owner = THIS_MODULE, + .open = radio_open, + .release = radio_release, + .ioctl = radio_ioctl, + .llseek = no_llseek, +}; + +static struct video_device radio_template = +{ + .name = "bt848/878 radio", + .type = VID_TYPE_TUNER, + .hardware = VID_HARDWARE_BT848, + .fops = &radio_fops, + .minor = -1, +}; + +/* ----------------------------------------------------------------------- */ +/* some debug code */ + +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; + + printk("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))) + printk(" %s",bits[i]); + printk(" count=%d ]\n", risc & 0xfff); + return incr[risc >> 28] ? incr[risc >> 28] : 1; +} + +void bttv_risc_disasm(struct bttv *btv, + struct btcx_riscmem *risc) +{ + unsigned int i,j,n; + + printk("%s: risc disasm: %p [dma=0x%08lx]\n", + btv->c.name, risc->cpu, (unsigned long)risc->dma); + for (i = 0; i < (risc->size >> 2); i += n) { + printk("%s: 0x%lx: ", btv->c.name, + (unsigned long)(risc->dma + (i<<2))); + n = bttv_risc_decode(risc->cpu[i]); + for (j = 1; j < n; j++) + printk("%s: 0x%lx: 0x%08x [ arg #%d ]\n", + btv->c.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) +{ + printk(" main: %08Lx\n", + (unsigned long long)btv->main.dma); + printk(" vbi : o=%08Lx e=%08Lx\n", + btv->cvbi ? (unsigned long long)btv->cvbi->top.dma : 0, + btv->cvbi ? (unsigned long long)btv->cvbi->bottom.dma : 0); + printk(" cap : o=%08Lx e=%08Lx\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); + printk(" scr : o=%08Lx e=%08Lx\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; + + printk("bits:"); + for (i = 0; i < ARRAY_SIZE(irq_name); i++) { + if (print & (1 << i)) + printk(" %s",irq_name[i]); + if (mark & (1 << i)) + printk("*"); + } +} + +static void bttv_irq_debug_low_latency(struct bttv *btv, u32 rc) +{ + printk("bttv%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)btv->main.cpu[RISC_SLOT_O_VBI+1], + (unsigned long)btv->main.cpu[RISC_SLOT_O_FIELD+1], + (unsigned long)rc); + + if (0 == (btread(BT848_DSTATUS) & BT848_DSTATUS_HLOC)) { + printk("bttv%d: Oh, there (temporarely?) is no input signal. " + "Ok, then this is harmless, don't worry ;)\n", + btv->c.nr); + return; + } + printk("bttv%d: Uhm. Looks like we have unusual high IRQ latencies.\n", + btv->c.nr); + printk("bttv%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); + if (!V4L2_FIELD_HAS_BOTH(item->vb.field)) { + if (NULL == set->top && + V4L2_FIELD_TOP == item->vb.field) { + set->top = item; + } + 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("bttv%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) + printk("bttv%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) + printk("bttv%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) + printk("bttv%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) { + printk(KERN_INFO "bttv%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); + printk("\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, STATE_ERROR); + bttv_irq_wakeup_vbi(btv, ovbi, STATE_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 = STATE_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 = STATE_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 = STATE_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, STATE_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, STATE_DONE); + spin_unlock(&btv->s_lock); +} + +static irqreturn_t bttv_irq(int irq, void *dev_id, struct pt_regs * regs) +{ + 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) { + printk(KERN_DEBUG "bttv%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) + printk(" HLOC => %s", (dstat & BT848_DSTATUS_HLOC) + ? "yes" : "no"); + if (stat & BT848_INT_VPRES) + printk(" PRES => %s", (dstat & BT848_DSTATUS_PRES) + ? "yes" : "no"); + if (stat & BT848_INT_FMTCHG) + printk(" NUML => %s", (dstat & BT848_DSTATUS_NUML) + ? "625" : "525"); + printk("\n"); + } + + if (astat&BT848_INT_VSYNC) + btv->field_count++; + + if (astat & BT848_INT_GPINT) { + wake_up(&btv->gpioq); + bttv_gpio_irq(&btv->c); + } + + 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_mux(btv, -1); + + if (astat & (BT848_INT_SCERR|BT848_INT_OCERR)) { + printk(KERN_INFO "bttv%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); + printk("\n"); + if (bttv_debug) + bttv_print_riscaddr(btv); + } + if (fdsr && astat & BT848_INT_FDSR) { + printk(KERN_INFO "bttv%d: FDSR @ %08x\n", + btv->c.nr,btread(BT848_RISC_COUNT)); + if (bttv_debug) + bttv_print_riscaddr(btv); + } + + count++; + if (count > 4) { + btwrite(0, BT848_INT_MASK); + printk(KERN_ERR + "bttv%d: IRQ lockup, cleared int mask [", btv->c.nr); + bttv_print_irqbits(stat,astat); + printk("]\n"); + } + } + btv->irq_total++; + if (handled) + btv->irq_me++; + return IRQ_RETVAL(handled); +} + + +/* ----------------------------------------------------------------------- */ +/* initialitation */ + +static struct video_device *vdev_init(struct bttv *btv, + struct video_device *template, + char *type) +{ + struct video_device *vfd; + + vfd = video_device_alloc(); + if (NULL == vfd) + return NULL; + *vfd = *template; + vfd->minor = -1; + vfd->dev = &btv->c.pci->dev; + vfd->release = video_device_release; + snprintf(vfd->name, sizeof(vfd->name), "BT%d%s %s (%s)", + btv->id, (btv->id==848 && btv->revision==0x12) ? "A" : "", + type, bttv_tvcards[btv->c.type].name); + return vfd; +} + +static void bttv_unregister_video(struct bttv *btv) +{ + if (btv->video_dev) { + if (-1 != btv->video_dev->minor) + video_unregister_device(btv->video_dev); + else + video_device_release(btv->video_dev); + btv->video_dev = NULL; + } + if (btv->vbi_dev) { + if (-1 != btv->vbi_dev->minor) + video_unregister_device(btv->vbi_dev); + else + video_device_release(btv->vbi_dev); + btv->vbi_dev = NULL; + } + if (btv->radio_dev) { + if (-1 != btv->radio_dev->minor) + 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) +{ + /* 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)<0) + goto err; + printk(KERN_INFO "bttv%d: registered device video%d\n", + btv->c.nr,btv->video_dev->minor & 0x1f); + video_device_create_file(btv->video_dev, &class_device_attr_card); + + /* vbi */ + btv->vbi_dev = vdev_init(btv, &bttv_vbi_template, "vbi"); + if (NULL == btv->vbi_dev) + goto err; + if (video_register_device(btv->vbi_dev,VFL_TYPE_VBI,vbi_nr)<0) + goto err; + printk(KERN_INFO "bttv%d: registered device vbi%d\n", + btv->c.nr,btv->vbi_dev->minor & 0x1f); + + 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)<0) + goto err; + printk(KERN_INFO "bttv%d: registered device radio%d\n", + btv->c.nr,btv->radio_dev->minor & 0x1f); + + /* 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; + printk(KERN_INFO "bttv: Bt8xx card found (%d).\n", bttv_num); + btv=&bttvs[bttv_num]; + memset(btv,0,sizeof(*btv)); + btv->c.nr = bttv_num; + sprintf(btv->c.name,"bttv%d",btv->c.nr); + + /* initialize structs / fill in defaults */ + init_MUTEX(&btv->lock); + init_MUTEX(&btv->reslock); + spin_lock_init(&btv->s_lock); + spin_lock_init(&btv->gpio_lock); + init_waitqueue_head(&btv->gpioq); + 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->pinnacle_id = UNSET; + btv->new_input = UNSET; + btv->gpioirq = 1; + 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)) { + printk(KERN_WARNING "bttv%d: Can't enable device.\n", + btv->c.nr); + return -EIO; + } + if (pci_set_dma_mask(dev, 0xffffffff)) { + printk(KERN_WARNING "bttv%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.name)) { + printk(KERN_WARNING "bttv%d: can't request iomem (0x%lx).\n", + btv->c.nr, pci_resource_start(dev,0)); + return -EBUSY; + } + pci_set_master(dev); + pci_set_command(dev); + pci_set_drvdata(dev,btv); + if (!pci_dma_supported(dev,0xffffffff)) { + printk("bttv%d: Oops: no 32bit PCI DMA ???\n", btv->c.nr); + result = -EIO; + goto fail1; + } + + pci_read_config_byte(dev, PCI_CLASS_REVISION, &btv->revision); + pci_read_config_byte(dev, PCI_LATENCY_TIMER, &lat); + printk(KERN_INFO "bttv%d: Bt%d (rev %d) at %s, ", + bttv_num,btv->id, btv->revision, pci_name(dev)); + printk("irq: %d, latency: %d, mmio: 0x%lx\n", + btv->c.pci->irq, lat, pci_resource_start(dev,0)); + schedule(); + + btv->bt848_mmio=ioremap(pci_resource_start(dev,0), 0x1000); + if (NULL == ioremap(pci_resource_start(dev,0), 0x1000)) { + printk("bttv%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, + SA_SHIRQ | SA_INTERRUPT,btv->c.name,(void *)btv); + if (result < 0) { + printk(KERN_ERR "bttv%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; + + /* 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_palette(VIDEO_PALETTE_RGB24); + btv->init.width = 320; + btv->init.height = 240; + btv->init.lines = 16; + 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); + 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,32768); + bt848_hue(btv,32768); + bt848_sat(btv,32768); + audio_mux(btv,AUDIO_MUTE); + set_input(btv,0); + } + + /* add subdevices */ + if (btv->has_remote) + bttv_sub_add_device(&btv->c, "remote"); + if (bttv_tvcards[btv->c.type].has_dvb) + bttv_sub_add_device(&btv->c, "dvb"); + + /* everything is fine */ + bttv_num++; + return 0; + + fail2: + free_irq(btv->c.pci->irq,btv); + + fail1: + 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)); + pci_set_drvdata(dev,NULL); + return result; +} + +static void __devexit bttv_remove(struct pci_dev *pci_dev) +{ + struct bttv *btv = pci_get_drvdata(pci_dev); + + if (bttv_verbose) + printk("bttv%d: unloading\n",btv->c.nr); + + /* 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; + wake_up(&btv->gpioq); + 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)); + + pci_set_drvdata(pci_dev, NULL); + return; +} + +static int bttv_suspend(struct pci_dev *pci_dev, pm_message_t state) +{ + struct bttv *btv = pci_get_drvdata(pci_dev); + struct bttv_buffer_set idle; + unsigned long flags; + + dprintk("bttv%d: suspend %d\n", btv->c.nr, state); + + /* 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 bttv *btv = pci_get_drvdata(pci_dev); + unsigned long flags; + + dprintk("bttv%d: resume\n", btv->c.nr); + + /* restore pci state */ + if (btv->state.disabled) { + pci_enable_device(pci_dev); + btv->state.disabled = 0; + } + pci_set_power_state(pci_dev, PCI_D0); + 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; +} + +static struct pci_device_id bttv_pci_tbl[] = { + {PCI_VENDOR_ID_BROOKTREE, PCI_DEVICE_ID_BT848, + PCI_ANY_ID, PCI_ANY_ID, 0, 0, 0}, + {PCI_VENDOR_ID_BROOKTREE, PCI_DEVICE_ID_BT849, + PCI_ANY_ID, PCI_ANY_ID, 0, 0, 0}, + {PCI_VENDOR_ID_BROOKTREE, PCI_DEVICE_ID_BT878, + PCI_ANY_ID, PCI_ANY_ID, 0, 0, 0}, + {PCI_VENDOR_ID_BROOKTREE, PCI_DEVICE_ID_BT879, + PCI_ANY_ID, PCI_ANY_ID, 0, 0, 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), + .suspend = bttv_suspend, + .resume = bttv_resume, +}; + +static int bttv_init_module(void) +{ + bttv_num = 0; + + printk(KERN_INFO "bttv: driver version %d.%d.%d loaded\n", + (BTTV_VERSION_CODE >> 16) & 0xff, + (BTTV_VERSION_CODE >> 8) & 0xff, + BTTV_VERSION_CODE & 0xff); +#ifdef SNAPSHOT + printk(KERN_INFO "bttv: snapshot date %04d-%02d-%02d\n", + SNAPSHOT/10000, (SNAPSHOT/100)%100, SNAPSHOT%100); +#endif + if (gbuffers < 2 || gbuffers > VIDEO_MAX_FRAME) + gbuffers = 2; + if (gbufsize < 0 || gbufsize > BTTV_MAX_FBUF) + gbufsize = BTTV_MAX_FBUF; + gbufsize = (gbufsize + PAGE_SIZE - 1) & PAGE_MASK; + if (bttv_verbose) + printk(KERN_INFO "bttv: using %d buffers with %dk (%d pages) each for capture\n", + gbuffers, gbufsize >> 10, gbufsize >> PAGE_SHIFT); + + bttv_check_chipset(); + + bus_register(&bttv_sub_bus_type); + return pci_module_init(&bttv_pci_driver); +} + +static void bttv_cleanup_module(void) +{ + pci_unregister_driver(&bttv_pci_driver); + bus_unregister(&bttv_sub_bus_type); + return; +} + +module_init(bttv_init_module); +module_exit(bttv_cleanup_module); + +/* + * Local variables: + * c-basic-offset: 8 + * End: + */ |