summaryrefslogtreecommitdiffstats
path: root/drivers/media/pci/bt8xx/bttv-driver.c
diff options
context:
space:
mode:
Diffstat (limited to 'drivers/media/pci/bt8xx/bttv-driver.c')
-rw-r--r--drivers/media/pci/bt8xx/bttv-driver.c4382
1 files changed, 4382 insertions, 0 deletions
diff --git a/drivers/media/pci/bt8xx/bttv-driver.c b/drivers/media/pci/bt8xx/bttv-driver.c
new file mode 100644
index 000000000..24ba57299
--- /dev/null
+++ b/drivers/media/pci/bt8xx/bttv-driver.c
@@ -0,0 +1,4382 @@
+// SPDX-License-Identifier: GPL-2.0-or-later
+/*
+
+ bttv - Bt848 frame grabber driver
+
+ Copyright (C) 1996,97,98 Ralph Metzler <rjkm@thp.uni-koeln.de>
+ & Marcus Metzler <mocm@thp.uni-koeln.de>
+ (c) 1999-2002 Gerd Knorr <kraxel@bytesex.org>
+
+ some v4l2 code lines are taken from Justin's bttv2 driver which is
+ (c) 2000 Justin Schoeman <justin@suntiger.ee.up.ac.za>
+
+ V4L1 removal from:
+ (c) 2005-2006 Nickolay V. Shmyrev <nshmyrev@yandex.ru>
+
+ Fixes to be fully V4L2 compliant by
+ (c) 2006 Mauro Carvalho Chehab <mchehab@kernel.org>
+
+ Cropping and overscan support
+ Copyright (C) 2005, 2006 Michael H. Schimek <mschimek@gmx.at>
+ Sponsored by OPQ Systems AB
+
+*/
+
+#define pr_fmt(fmt) KBUILD_MODNAME ": " fmt
+
+#include <linux/init.h>
+#include <linux/module.h>
+#include <linux/delay.h>
+#include <linux/slab.h>
+#include <linux/errno.h>
+#include <linux/fs.h>
+#include <linux/kernel.h>
+#include <linux/sched.h>
+#include <linux/interrupt.h>
+#include <linux/kdev_t.h>
+#include "bttvp.h"
+#include <media/v4l2-common.h>
+#include <media/v4l2-ioctl.h>
+#include <media/v4l2-event.h>
+#include <media/i2c/tvaudio.h>
+#include <media/drv-intf/msp3400.h>
+
+#include <linux/dma-mapping.h>
+
+#include <asm/io.h>
+#include <asm/byteorder.h>
+
+#include <media/i2c/saa6588.h>
+
+#define BTTV_VERSION "0.9.19"
+
+unsigned int bttv_num; /* number of Bt848s in use */
+struct bttv *bttvs[BTTV_MAX];
+
+unsigned int bttv_debug;
+unsigned int bttv_verbose = 1;
+unsigned int bttv_gpio;
+
+/* config variables */
+#ifdef __BIG_ENDIAN
+static unsigned int bigendian=1;
+#else
+static unsigned int bigendian;
+#endif
+static unsigned int radio[BTTV_MAX];
+static unsigned int irq_debug;
+static unsigned int gbuffers = 8;
+static unsigned int gbufsize = 0x208000;
+static unsigned int reset_crop = 1;
+
+static int video_nr[BTTV_MAX] = { [0 ... (BTTV_MAX-1)] = -1 };
+static int radio_nr[BTTV_MAX] = { [0 ... (BTTV_MAX-1)] = -1 };
+static int vbi_nr[BTTV_MAX] = { [0 ... (BTTV_MAX-1)] = -1 };
+static int debug_latency;
+static int disable_ir;
+
+static unsigned int fdsr;
+
+/* options */
+static unsigned int combfilter;
+static unsigned int lumafilter;
+static unsigned int automute = 1;
+static unsigned int chroma_agc;
+static unsigned int agc_crush = 1;
+static unsigned int whitecrush_upper = 0xCF;
+static unsigned int whitecrush_lower = 0x7F;
+static unsigned int vcr_hack;
+static unsigned int irq_iswitch;
+static unsigned int uv_ratio = 50;
+static unsigned int full_luma_range;
+static unsigned int coring;
+
+/* API features (turn on/off stuff for testing) */
+static unsigned int v4l2 = 1;
+
+/* insmod args */
+module_param(bttv_verbose, int, 0644);
+module_param(bttv_gpio, int, 0644);
+module_param(bttv_debug, int, 0644);
+module_param(irq_debug, int, 0644);
+module_param(debug_latency, int, 0644);
+module_param(disable_ir, int, 0444);
+
+module_param(fdsr, int, 0444);
+module_param(gbuffers, int, 0444);
+module_param(gbufsize, int, 0444);
+module_param(reset_crop, int, 0444);
+
+module_param(v4l2, int, 0644);
+module_param(bigendian, int, 0644);
+module_param(irq_iswitch, int, 0644);
+module_param(combfilter, int, 0444);
+module_param(lumafilter, int, 0444);
+module_param(automute, int, 0444);
+module_param(chroma_agc, int, 0444);
+module_param(agc_crush, int, 0444);
+module_param(whitecrush_upper, int, 0444);
+module_param(whitecrush_lower, int, 0444);
+module_param(vcr_hack, int, 0444);
+module_param(uv_ratio, int, 0444);
+module_param(full_luma_range, int, 0444);
+module_param(coring, int, 0444);
+
+module_param_array(radio, int, NULL, 0444);
+module_param_array(video_nr, int, NULL, 0444);
+module_param_array(radio_nr, int, NULL, 0444);
+module_param_array(vbi_nr, int, NULL, 0444);
+
+MODULE_PARM_DESC(radio, "The TV card supports radio, default is 0 (no)");
+MODULE_PARM_DESC(bigendian, "byte order of the framebuffer, default is native endian");
+MODULE_PARM_DESC(bttv_verbose, "verbose startup messages, default is 1 (yes)");
+MODULE_PARM_DESC(bttv_gpio, "log gpio changes, default is 0 (no)");
+MODULE_PARM_DESC(bttv_debug, "debug messages, default is 0 (no)");
+MODULE_PARM_DESC(irq_debug, "irq handler debug messages, default is 0 (no)");
+MODULE_PARM_DESC(disable_ir, "disable infrared remote support");
+MODULE_PARM_DESC(gbuffers, "number of capture buffers. range 2-32, default 8");
+MODULE_PARM_DESC(gbufsize, "size of the capture buffers, default is 0x208000");
+MODULE_PARM_DESC(reset_crop, "reset cropping parameters at open(), default is 1 (yes) for compatibility with older applications");
+MODULE_PARM_DESC(automute, "mute audio on bad/missing video signal, default is 1 (yes)");
+MODULE_PARM_DESC(chroma_agc, "enables the AGC of chroma signal, default is 0 (no)");
+MODULE_PARM_DESC(agc_crush, "enables the luminance AGC crush, default is 1 (yes)");
+MODULE_PARM_DESC(whitecrush_upper, "sets the white crush upper value, default is 207");
+MODULE_PARM_DESC(whitecrush_lower, "sets the white crush lower value, default is 127");
+MODULE_PARM_DESC(vcr_hack, "enables the VCR hack (improves synch on poor VCR tapes), default is 0 (no)");
+MODULE_PARM_DESC(irq_iswitch, "switch inputs in irq handler");
+MODULE_PARM_DESC(uv_ratio, "ratio between u and v gains, default is 50");
+MODULE_PARM_DESC(full_luma_range, "use the full luma range, default is 0 (no)");
+MODULE_PARM_DESC(coring, "set the luma coring level, default is 0 (no)");
+MODULE_PARM_DESC(video_nr, "video device numbers");
+MODULE_PARM_DESC(vbi_nr, "vbi device numbers");
+MODULE_PARM_DESC(radio_nr, "radio device numbers");
+
+MODULE_DESCRIPTION("bttv - v4l/v4l2 driver module for bt848/878 based cards");
+MODULE_AUTHOR("Ralph Metzler & Marcus Metzler & Gerd Knorr");
+MODULE_LICENSE("GPL");
+MODULE_VERSION(BTTV_VERSION);
+
+#define V4L2_CID_PRIVATE_COMBFILTER (V4L2_CID_USER_BTTV_BASE + 0)
+#define V4L2_CID_PRIVATE_AUTOMUTE (V4L2_CID_USER_BTTV_BASE + 1)
+#define V4L2_CID_PRIVATE_LUMAFILTER (V4L2_CID_USER_BTTV_BASE + 2)
+#define V4L2_CID_PRIVATE_AGC_CRUSH (V4L2_CID_USER_BTTV_BASE + 3)
+#define V4L2_CID_PRIVATE_VCR_HACK (V4L2_CID_USER_BTTV_BASE + 4)
+#define V4L2_CID_PRIVATE_WHITECRUSH_LOWER (V4L2_CID_USER_BTTV_BASE + 5)
+#define V4L2_CID_PRIVATE_WHITECRUSH_UPPER (V4L2_CID_USER_BTTV_BASE + 6)
+#define V4L2_CID_PRIVATE_UV_RATIO (V4L2_CID_USER_BTTV_BASE + 7)
+#define V4L2_CID_PRIVATE_FULL_LUMA_RANGE (V4L2_CID_USER_BTTV_BASE + 8)
+#define V4L2_CID_PRIVATE_CORING (V4L2_CID_USER_BTTV_BASE + 9)
+
+/* ----------------------------------------------------------------------- */
+/* sysfs */
+
+static ssize_t card_show(struct device *cd,
+ struct device_attribute *attr, char *buf)
+{
+ struct video_device *vfd = to_video_device(cd);
+ struct bttv *btv = video_get_drvdata(vfd);
+ return sprintf(buf, "%d\n", btv ? btv->c.type : UNSET);
+}
+static DEVICE_ATTR_RO(card);
+
+/* ----------------------------------------------------------------------- */
+/* dvb auto-load setup */
+#if defined(CONFIG_MODULES) && defined(MODULE)
+static void request_module_async(struct work_struct *work)
+{
+ request_module("dvb-bt8xx");
+}
+
+static void request_modules(struct bttv *dev)
+{
+ INIT_WORK(&dev->request_module_wk, request_module_async);
+ schedule_work(&dev->request_module_wk);
+}
+
+static void flush_request_modules(struct bttv *dev)
+{
+ flush_work(&dev->request_module_wk);
+}
+#else
+#define request_modules(dev)
+#define flush_request_modules(dev) do {} while(0)
+#endif /* CONFIG_MODULES */
+
+
+/* ----------------------------------------------------------------------- */
+/* static data */
+
+/* special timing tables from conexant... */
+static u8 SRAM_Table[][60] =
+{
+ /* PAL digital input over GPIO[7:0] */
+ {
+ 45, // 45 bytes following
+ 0x36,0x11,0x01,0x00,0x90,0x02,0x05,0x10,0x04,0x16,
+ 0x12,0x05,0x11,0x00,0x04,0x12,0xC0,0x00,0x31,0x00,
+ 0x06,0x51,0x08,0x03,0x89,0x08,0x07,0xC0,0x44,0x00,
+ 0x81,0x01,0x01,0xA9,0x0D,0x02,0x02,0x50,0x03,0x37,
+ 0x37,0x00,0xAF,0x21,0x00
+ },
+ /* NTSC digital input over GPIO[7:0] */
+ {
+ 51, // 51 bytes following
+ 0x0C,0xC0,0x00,0x00,0x90,0x02,0x03,0x10,0x03,0x06,
+ 0x10,0x04,0x12,0x12,0x05,0x02,0x13,0x04,0x19,0x00,
+ 0x04,0x39,0x00,0x06,0x59,0x08,0x03,0x83,0x08,0x07,
+ 0x03,0x50,0x00,0xC0,0x40,0x00,0x86,0x01,0x01,0xA6,
+ 0x0D,0x02,0x03,0x11,0x01,0x05,0x37,0x00,0xAC,0x21,
+ 0x00,
+ },
+ // TGB_NTSC392 // quartzsight
+ // This table has been modified to be used for Fusion Rev D
+ {
+ 0x2A, // size of table = 42
+ 0x06, 0x08, 0x04, 0x0a, 0xc0, 0x00, 0x18, 0x08, 0x03, 0x24,
+ 0x08, 0x07, 0x02, 0x90, 0x02, 0x08, 0x10, 0x04, 0x0c, 0x10,
+ 0x05, 0x2c, 0x11, 0x04, 0x55, 0x48, 0x00, 0x05, 0x50, 0x00,
+ 0xbf, 0x0c, 0x02, 0x2f, 0x3d, 0x00, 0x2f, 0x3f, 0x00, 0xc3,
+ 0x20, 0x00
+ }
+};
+
+/* minhdelayx1 first video pixel we can capture on a line and
+ hdelayx1 start of active video, both relative to rising edge of
+ /HRESET pulse (0H) in 1 / fCLKx1.
+ swidth width of active video and
+ totalwidth total line width, both in 1 / fCLKx1.
+ sqwidth total line width in square pixels.
+ vdelay start of active video in 2 * field lines relative to
+ trailing edge of /VRESET pulse (VDELAY register).
+ sheight height of active video in 2 * field lines.
+ extraheight Added to sheight for cropcap.bounds.height only
+ videostart0 ITU-R frame line number of the line corresponding
+ to vdelay in the first field. */
+#define CROPCAP(minhdelayx1, hdelayx1, swidth, totalwidth, sqwidth, \
+ vdelay, sheight, extraheight, videostart0) \
+ .cropcap.bounds.left = minhdelayx1, \
+ /* * 2 because vertically we count field lines times two, */ \
+ /* e.g. 23 * 2 to 23 * 2 + 576 in PAL-BGHI defrect. */ \
+ .cropcap.bounds.top = (videostart0) * 2 - (vdelay) + MIN_VDELAY, \
+ /* 4 is a safety margin at the end of the line. */ \
+ .cropcap.bounds.width = (totalwidth) - (minhdelayx1) - 4, \
+ .cropcap.bounds.height = (sheight) + (extraheight) + (vdelay) - \
+ MIN_VDELAY, \
+ .cropcap.defrect.left = hdelayx1, \
+ .cropcap.defrect.top = (videostart0) * 2, \
+ .cropcap.defrect.width = swidth, \
+ .cropcap.defrect.height = sheight, \
+ .cropcap.pixelaspect.numerator = totalwidth, \
+ .cropcap.pixelaspect.denominator = sqwidth,
+
+const struct bttv_tvnorm bttv_tvnorms[] = {
+ /* PAL-BDGHI */
+ /* max. active video is actually 922, but 924 is divisible by 4 and 3! */
+ /* actually, max active PAL with HSCALE=0 is 948, NTSC is 768 - nil */
+ {
+ .v4l2_id = V4L2_STD_PAL,
+ .name = "PAL",
+ .Fsc = 35468950,
+ .swidth = 924,
+ .sheight = 576,
+ .totalwidth = 1135,
+ .adelay = 0x7f,
+ .bdelay = 0x72,
+ .iform = (BT848_IFORM_PAL_BDGHI|BT848_IFORM_XT1),
+ .scaledtwidth = 1135,
+ .hdelayx1 = 186,
+ .hactivex1 = 924,
+ .vdelay = 0x20,
+ .vbipack = 255, /* min (2048 / 4, 0x1ff) & 0xff */
+ .sram = 0,
+ /* ITU-R frame line number of the first VBI line
+ we can capture, of the first and second field.
+ The last line is determined by cropcap.bounds. */
+ .vbistart = { 7, 320 },
+ CROPCAP(/* minhdelayx1 */ 68,
+ /* hdelayx1 */ 186,
+ /* Should be (768 * 1135 + 944 / 2) / 944.
+ cropcap.defrect is used for image width
+ checks, so we keep the old value 924. */
+ /* swidth */ 924,
+ /* totalwidth */ 1135,
+ /* sqwidth */ 944,
+ /* vdelay */ 0x20,
+ /* sheight */ 576,
+ /* bt878 (and bt848?) can capture another
+ line below active video. */
+ /* extraheight */ 2,
+ /* videostart0 */ 23)
+ },{
+ .v4l2_id = V4L2_STD_NTSC_M | V4L2_STD_NTSC_M_KR,
+ .name = "NTSC",
+ .Fsc = 28636363,
+ .swidth = 768,
+ .sheight = 480,
+ .totalwidth = 910,
+ .adelay = 0x68,
+ .bdelay = 0x5d,
+ .iform = (BT848_IFORM_NTSC|BT848_IFORM_XT0),
+ .scaledtwidth = 910,
+ .hdelayx1 = 128,
+ .hactivex1 = 910,
+ .vdelay = 0x1a,
+ .vbipack = 144, /* min (1600 / 4, 0x1ff) & 0xff */
+ .sram = 1,
+ .vbistart = { 10, 273 },
+ CROPCAP(/* minhdelayx1 */ 68,
+ /* hdelayx1 */ 128,
+ /* Should be (640 * 910 + 780 / 2) / 780? */
+ /* swidth */ 768,
+ /* totalwidth */ 910,
+ /* sqwidth */ 780,
+ /* vdelay */ 0x1a,
+ /* sheight */ 480,
+ /* extraheight */ 0,
+ /* videostart0 */ 23)
+ },{
+ .v4l2_id = V4L2_STD_SECAM,
+ .name = "SECAM",
+ .Fsc = 35468950,
+ .swidth = 924,
+ .sheight = 576,
+ .totalwidth = 1135,
+ .adelay = 0x7f,
+ .bdelay = 0xb0,
+ .iform = (BT848_IFORM_SECAM|BT848_IFORM_XT1),
+ .scaledtwidth = 1135,
+ .hdelayx1 = 186,
+ .hactivex1 = 922,
+ .vdelay = 0x20,
+ .vbipack = 255,
+ .sram = 0, /* like PAL, correct? */
+ .vbistart = { 7, 320 },
+ CROPCAP(/* minhdelayx1 */ 68,
+ /* hdelayx1 */ 186,
+ /* swidth */ 924,
+ /* totalwidth */ 1135,
+ /* sqwidth */ 944,
+ /* vdelay */ 0x20,
+ /* sheight */ 576,
+ /* extraheight */ 0,
+ /* videostart0 */ 23)
+ },{
+ .v4l2_id = V4L2_STD_PAL_Nc,
+ .name = "PAL-Nc",
+ .Fsc = 28636363,
+ .swidth = 640,
+ .sheight = 576,
+ .totalwidth = 910,
+ .adelay = 0x68,
+ .bdelay = 0x5d,
+ .iform = (BT848_IFORM_PAL_NC|BT848_IFORM_XT0),
+ .scaledtwidth = 780,
+ .hdelayx1 = 130,
+ .hactivex1 = 734,
+ .vdelay = 0x1a,
+ .vbipack = 144,
+ .sram = -1,
+ .vbistart = { 7, 320 },
+ CROPCAP(/* minhdelayx1 */ 68,
+ /* hdelayx1 */ 130,
+ /* swidth */ (640 * 910 + 780 / 2) / 780,
+ /* totalwidth */ 910,
+ /* sqwidth */ 780,
+ /* vdelay */ 0x1a,
+ /* sheight */ 576,
+ /* extraheight */ 0,
+ /* videostart0 */ 23)
+ },{
+ .v4l2_id = V4L2_STD_PAL_M,
+ .name = "PAL-M",
+ .Fsc = 28636363,
+ .swidth = 640,
+ .sheight = 480,
+ .totalwidth = 910,
+ .adelay = 0x68,
+ .bdelay = 0x5d,
+ .iform = (BT848_IFORM_PAL_M|BT848_IFORM_XT0),
+ .scaledtwidth = 780,
+ .hdelayx1 = 135,
+ .hactivex1 = 754,
+ .vdelay = 0x1a,
+ .vbipack = 144,
+ .sram = -1,
+ .vbistart = { 10, 273 },
+ CROPCAP(/* minhdelayx1 */ 68,
+ /* hdelayx1 */ 135,
+ /* swidth */ (640 * 910 + 780 / 2) / 780,
+ /* totalwidth */ 910,
+ /* sqwidth */ 780,
+ /* vdelay */ 0x1a,
+ /* sheight */ 480,
+ /* extraheight */ 0,
+ /* videostart0 */ 23)
+ },{
+ .v4l2_id = V4L2_STD_PAL_N,
+ .name = "PAL-N",
+ .Fsc = 35468950,
+ .swidth = 768,
+ .sheight = 576,
+ .totalwidth = 1135,
+ .adelay = 0x7f,
+ .bdelay = 0x72,
+ .iform = (BT848_IFORM_PAL_N|BT848_IFORM_XT1),
+ .scaledtwidth = 944,
+ .hdelayx1 = 186,
+ .hactivex1 = 922,
+ .vdelay = 0x20,
+ .vbipack = 144,
+ .sram = -1,
+ .vbistart = { 7, 320 },
+ CROPCAP(/* minhdelayx1 */ 68,
+ /* hdelayx1 */ 186,
+ /* swidth */ (768 * 1135 + 944 / 2) / 944,
+ /* totalwidth */ 1135,
+ /* sqwidth */ 944,
+ /* vdelay */ 0x20,
+ /* sheight */ 576,
+ /* extraheight */ 0,
+ /* videostart0 */ 23)
+ },{
+ .v4l2_id = V4L2_STD_NTSC_M_JP,
+ .name = "NTSC-JP",
+ .Fsc = 28636363,
+ .swidth = 640,
+ .sheight = 480,
+ .totalwidth = 910,
+ .adelay = 0x68,
+ .bdelay = 0x5d,
+ .iform = (BT848_IFORM_NTSC_J|BT848_IFORM_XT0),
+ .scaledtwidth = 780,
+ .hdelayx1 = 135,
+ .hactivex1 = 754,
+ .vdelay = 0x16,
+ .vbipack = 144,
+ .sram = -1,
+ .vbistart = { 10, 273 },
+ CROPCAP(/* minhdelayx1 */ 68,
+ /* hdelayx1 */ 135,
+ /* swidth */ (640 * 910 + 780 / 2) / 780,
+ /* totalwidth */ 910,
+ /* sqwidth */ 780,
+ /* vdelay */ 0x16,
+ /* sheight */ 480,
+ /* extraheight */ 0,
+ /* videostart0 */ 23)
+ },{
+ /* that one hopefully works with the strange timing
+ * which video recorders produce when playing a NTSC
+ * tape on a PAL TV ... */
+ .v4l2_id = V4L2_STD_PAL_60,
+ .name = "PAL-60",
+ .Fsc = 35468950,
+ .swidth = 924,
+ .sheight = 480,
+ .totalwidth = 1135,
+ .adelay = 0x7f,
+ .bdelay = 0x72,
+ .iform = (BT848_IFORM_PAL_BDGHI|BT848_IFORM_XT1),
+ .scaledtwidth = 1135,
+ .hdelayx1 = 186,
+ .hactivex1 = 924,
+ .vdelay = 0x1a,
+ .vbipack = 255,
+ .vtotal = 524,
+ .sram = -1,
+ .vbistart = { 10, 273 },
+ CROPCAP(/* minhdelayx1 */ 68,
+ /* hdelayx1 */ 186,
+ /* swidth */ 924,
+ /* totalwidth */ 1135,
+ /* sqwidth */ 944,
+ /* vdelay */ 0x1a,
+ /* sheight */ 480,
+ /* extraheight */ 0,
+ /* videostart0 */ 23)
+ }
+};
+static const unsigned int BTTV_TVNORMS = ARRAY_SIZE(bttv_tvnorms);
+
+/* ----------------------------------------------------------------------- */
+/* bttv format list
+ packed pixel formats must come first */
+static const struct bttv_format formats[] = {
+ {
+ .fourcc = V4L2_PIX_FMT_GREY,
+ .btformat = BT848_COLOR_FMT_Y8,
+ .depth = 8,
+ .flags = FORMAT_FLAGS_PACKED,
+ },{
+ .fourcc = V4L2_PIX_FMT_HI240,
+ .btformat = BT848_COLOR_FMT_RGB8,
+ .depth = 8,
+ .flags = FORMAT_FLAGS_PACKED | FORMAT_FLAGS_DITHER,
+ },{
+ .fourcc = V4L2_PIX_FMT_RGB555,
+ .btformat = BT848_COLOR_FMT_RGB15,
+ .depth = 16,
+ .flags = FORMAT_FLAGS_PACKED,
+ },{
+ .fourcc = V4L2_PIX_FMT_RGB555X,
+ .btformat = BT848_COLOR_FMT_RGB15,
+ .btswap = 0x03, /* byteswap */
+ .depth = 16,
+ .flags = FORMAT_FLAGS_PACKED,
+ },{
+ .fourcc = V4L2_PIX_FMT_RGB565,
+ .btformat = BT848_COLOR_FMT_RGB16,
+ .depth = 16,
+ .flags = FORMAT_FLAGS_PACKED,
+ },{
+ .fourcc = V4L2_PIX_FMT_RGB565X,
+ .btformat = BT848_COLOR_FMT_RGB16,
+ .btswap = 0x03, /* byteswap */
+ .depth = 16,
+ .flags = FORMAT_FLAGS_PACKED,
+ },{
+ .fourcc = V4L2_PIX_FMT_BGR24,
+ .btformat = BT848_COLOR_FMT_RGB24,
+ .depth = 24,
+ .flags = FORMAT_FLAGS_PACKED,
+ },{
+ .fourcc = V4L2_PIX_FMT_BGR32,
+ .btformat = BT848_COLOR_FMT_RGB32,
+ .depth = 32,
+ .flags = FORMAT_FLAGS_PACKED,
+ },{
+ .fourcc = V4L2_PIX_FMT_RGB32,
+ .btformat = BT848_COLOR_FMT_RGB32,
+ .btswap = 0x0f, /* byte+word swap */
+ .depth = 32,
+ .flags = FORMAT_FLAGS_PACKED,
+ },{
+ .fourcc = V4L2_PIX_FMT_YUYV,
+ .btformat = BT848_COLOR_FMT_YUY2,
+ .depth = 16,
+ .flags = FORMAT_FLAGS_PACKED,
+ },{
+ .fourcc = V4L2_PIX_FMT_UYVY,
+ .btformat = BT848_COLOR_FMT_YUY2,
+ .btswap = 0x03, /* byteswap */
+ .depth = 16,
+ .flags = FORMAT_FLAGS_PACKED,
+ },{
+ .fourcc = V4L2_PIX_FMT_YUV422P,
+ .btformat = BT848_COLOR_FMT_YCrCb422,
+ .depth = 16,
+ .flags = FORMAT_FLAGS_PLANAR,
+ .hshift = 1,
+ .vshift = 0,
+ },{
+ .fourcc = V4L2_PIX_FMT_YUV420,
+ .btformat = BT848_COLOR_FMT_YCrCb422,
+ .depth = 12,
+ .flags = FORMAT_FLAGS_PLANAR,
+ .hshift = 1,
+ .vshift = 1,
+ },{
+ .fourcc = V4L2_PIX_FMT_YVU420,
+ .btformat = BT848_COLOR_FMT_YCrCb422,
+ .depth = 12,
+ .flags = FORMAT_FLAGS_PLANAR | FORMAT_FLAGS_CrCb,
+ .hshift = 1,
+ .vshift = 1,
+ },{
+ .fourcc = V4L2_PIX_FMT_YUV411P,
+ .btformat = BT848_COLOR_FMT_YCrCb411,
+ .depth = 12,
+ .flags = FORMAT_FLAGS_PLANAR,
+ .hshift = 2,
+ .vshift = 0,
+ },{
+ .fourcc = V4L2_PIX_FMT_YUV410,
+ .btformat = BT848_COLOR_FMT_YCrCb411,
+ .depth = 9,
+ .flags = FORMAT_FLAGS_PLANAR,
+ .hshift = 2,
+ .vshift = 2,
+ },{
+ .fourcc = V4L2_PIX_FMT_YVU410,
+ .btformat = BT848_COLOR_FMT_YCrCb411,
+ .depth = 9,
+ .flags = FORMAT_FLAGS_PLANAR | FORMAT_FLAGS_CrCb,
+ .hshift = 2,
+ .vshift = 2,
+ },{
+ .fourcc = -1,
+ .btformat = BT848_COLOR_FMT_RAW,
+ .depth = 8,
+ .flags = FORMAT_FLAGS_RAW,
+ }
+};
+static const unsigned int FORMATS = ARRAY_SIZE(formats);
+
+/* ----------------------------------------------------------------------- */
+/* resource management */
+
+/*
+ RESOURCE_ allocated by freed by
+
+ VIDEO_READ bttv_read 1) bttv_read 2)
+
+ VIDEO_STREAM VIDIOC_STREAMON VIDIOC_STREAMOFF
+ VIDIOC_QBUF 1) bttv_release
+ VIDIOCMCAPTURE 1)
+
+ OVERLAY VIDIOCCAPTURE on VIDIOCCAPTURE off
+ VIDIOC_OVERLAY on VIDIOC_OVERLAY off
+ 3) bttv_release
+
+ VBI VIDIOC_STREAMON VIDIOC_STREAMOFF
+ VIDIOC_QBUF 1) bttv_release
+ bttv_read, bttv_poll 1) 4)
+
+ 1) The resource must be allocated when we enter buffer prepare functions
+ and remain allocated while buffers are in the DMA queue.
+ 2) This is a single frame read.
+ 3) VIDIOC_S_FBUF and VIDIOC_S_FMT (OVERLAY) still work when
+ RESOURCE_OVERLAY is allocated.
+ 4) This is a continuous read, implies VIDIOC_STREAMON.
+
+ Note this driver permits video input and standard changes regardless if
+ resources are allocated.
+*/
+
+#define VBI_RESOURCES (RESOURCE_VBI)
+#define VIDEO_RESOURCES (RESOURCE_VIDEO_READ | \
+ RESOURCE_VIDEO_STREAM | \
+ RESOURCE_OVERLAY)
+
+static
+int check_alloc_btres_lock(struct bttv *btv, struct bttv_fh *fh, int bit)
+{
+ int xbits; /* mutual exclusive resources */
+
+ if (fh->resources & bit)
+ /* have it already allocated */
+ return 1;
+
+ xbits = bit;
+ if (bit & (RESOURCE_VIDEO_READ | RESOURCE_VIDEO_STREAM))
+ xbits |= RESOURCE_VIDEO_READ | RESOURCE_VIDEO_STREAM;
+
+ /* is it free? */
+ if (btv->resources & xbits) {
+ /* no, someone else uses it */
+ goto fail;
+ }
+
+ if ((bit & VIDEO_RESOURCES)
+ && 0 == (btv->resources & VIDEO_RESOURCES)) {
+ /* Do crop - use current, don't - use default parameters. */
+ __s32 top = btv->crop[!!fh->do_crop].rect.top;
+
+ if (btv->vbi_end > top)
+ goto fail;
+
+ /* We cannot capture the same line as video and VBI data.
+ Claim scan lines crop[].rect.top to bottom. */
+ btv->crop_start = top;
+ } else if (bit & VBI_RESOURCES) {
+ __s32 end = fh->vbi_fmt.end;
+
+ if (end > btv->crop_start)
+ goto fail;
+
+ /* Claim scan lines above fh->vbi_fmt.end. */
+ btv->vbi_end = end;
+ }
+
+ /* it's free, grab it */
+ fh->resources |= bit;
+ btv->resources |= bit;
+ return 1;
+
+ fail:
+ return 0;
+}
+
+static
+int check_btres(struct bttv_fh *fh, int bit)
+{
+ return (fh->resources & bit);
+}
+
+static
+int locked_btres(struct bttv *btv, int bit)
+{
+ return (btv->resources & bit);
+}
+
+/* Call with btv->lock down. */
+static void
+disclaim_vbi_lines(struct bttv *btv)
+{
+ btv->vbi_end = 0;
+}
+
+/* Call with btv->lock down. */
+static void
+disclaim_video_lines(struct bttv *btv)
+{
+ const struct bttv_tvnorm *tvnorm;
+ u8 crop;
+
+ tvnorm = &bttv_tvnorms[btv->tvnorm];
+ btv->crop_start = tvnorm->cropcap.bounds.top
+ + tvnorm->cropcap.bounds.height;
+
+ /* VBI capturing ends at VDELAY, start of video capturing, no
+ matter how many lines the VBI RISC program expects. When video
+ capturing is off, it shall no longer "preempt" VBI capturing,
+ so we set VDELAY to maximum. */
+ crop = btread(BT848_E_CROP) | 0xc0;
+ btwrite(crop, BT848_E_CROP);
+ btwrite(0xfe, BT848_E_VDELAY_LO);
+ btwrite(crop, BT848_O_CROP);
+ btwrite(0xfe, BT848_O_VDELAY_LO);
+}
+
+static
+void free_btres_lock(struct bttv *btv, struct bttv_fh *fh, int bits)
+{
+ if ((fh->resources & bits) != bits) {
+ /* trying to free resources not allocated by us ... */
+ pr_err("BUG! (btres)\n");
+ }
+ fh->resources &= ~bits;
+ btv->resources &= ~bits;
+
+ bits = btv->resources;
+
+ if (0 == (bits & VIDEO_RESOURCES))
+ disclaim_video_lines(btv);
+
+ if (0 == (bits & VBI_RESOURCES))
+ disclaim_vbi_lines(btv);
+}
+
+/* ----------------------------------------------------------------------- */
+/* If Bt848a or Bt849, use PLL for PAL/SECAM and crystal for NTSC */
+
+/* Frequency = (F_input / PLL_X) * PLL_I.PLL_F/PLL_C
+ PLL_X = Reference pre-divider (0=1, 1=2)
+ PLL_C = Post divider (0=6, 1=4)
+ PLL_I = Integer input
+ PLL_F = Fractional input
+
+ F_input = 28.636363 MHz:
+ PAL (CLKx2 = 35.46895 MHz): PLL_X = 1, PLL_I = 0x0E, PLL_F = 0xDCF9, PLL_C = 0
+*/
+
+static void set_pll_freq(struct bttv *btv, unsigned int fin, unsigned int fout)
+{
+ unsigned char fl, fh, fi;
+
+ /* prevent overflows */
+ fin/=4;
+ fout/=4;
+
+ fout*=12;
+ fi=fout/fin;
+
+ fout=(fout%fin)*256;
+ fh=fout/fin;
+
+ fout=(fout%fin)*256;
+ fl=fout/fin;
+
+ btwrite(fl, BT848_PLL_F_LO);
+ btwrite(fh, BT848_PLL_F_HI);
+ btwrite(fi|BT848_PLL_X, BT848_PLL_XCI);
+}
+
+static void set_pll(struct bttv *btv)
+{
+ int i;
+
+ if (!btv->pll.pll_crystal)
+ return;
+
+ if (btv->pll.pll_ofreq == btv->pll.pll_current) {
+ dprintk("%d: PLL: no change required\n", btv->c.nr);
+ return;
+ }
+
+ if (btv->pll.pll_ifreq == btv->pll.pll_ofreq) {
+ /* no PLL needed */
+ if (btv->pll.pll_current == 0)
+ return;
+ if (bttv_verbose)
+ pr_info("%d: PLL can sleep, using XTAL (%d)\n",
+ btv->c.nr, btv->pll.pll_ifreq);
+ btwrite(0x00,BT848_TGCTRL);
+ btwrite(0x00,BT848_PLL_XCI);
+ btv->pll.pll_current = 0;
+ return;
+ }
+
+ if (bttv_verbose)
+ pr_info("%d: Setting PLL: %d => %d (needs up to 100ms)\n",
+ btv->c.nr,
+ btv->pll.pll_ifreq, btv->pll.pll_ofreq);
+ set_pll_freq(btv, btv->pll.pll_ifreq, btv->pll.pll_ofreq);
+
+ for (i=0; i<10; i++) {
+ /* Let other people run while the PLL stabilizes */
+ msleep(10);
+
+ if (btread(BT848_DSTATUS) & BT848_DSTATUS_PLOCK) {
+ btwrite(0,BT848_DSTATUS);
+ } else {
+ btwrite(0x08,BT848_TGCTRL);
+ btv->pll.pll_current = btv->pll.pll_ofreq;
+ if (bttv_verbose)
+ pr_info("PLL set ok\n");
+ return;
+ }
+ }
+ btv->pll.pll_current = -1;
+ if (bttv_verbose)
+ pr_info("Setting PLL failed\n");
+ return;
+}
+
+/* used to switch between the bt848's analog/digital video capture modes */
+static void bt848A_set_timing(struct bttv *btv)
+{
+ int i, len;
+ int table_idx = bttv_tvnorms[btv->tvnorm].sram;
+ int fsc = bttv_tvnorms[btv->tvnorm].Fsc;
+
+ if (btv->input == btv->dig) {
+ dprintk("%d: load digital timing table (table_idx=%d)\n",
+ btv->c.nr,table_idx);
+
+ /* timing change...reset timing generator address */
+ btwrite(0x00, BT848_TGCTRL);
+ btwrite(0x02, BT848_TGCTRL);
+ btwrite(0x00, BT848_TGCTRL);
+
+ len=SRAM_Table[table_idx][0];
+ for(i = 1; i <= len; i++)
+ btwrite(SRAM_Table[table_idx][i],BT848_TGLB);
+ btv->pll.pll_ofreq = 27000000;
+
+ set_pll(btv);
+ btwrite(0x11, BT848_TGCTRL);
+ btwrite(0x41, BT848_DVSIF);
+ } else {
+ btv->pll.pll_ofreq = fsc;
+ set_pll(btv);
+ btwrite(0x0, BT848_DVSIF);
+ }
+}
+
+/* ----------------------------------------------------------------------- */
+
+static void bt848_bright(struct bttv *btv, int bright)
+{
+ int value;
+
+ // printk("set bright: %d\n", bright); // DEBUG
+ btv->bright = bright;
+
+ /* We want -128 to 127 we get 0-65535 */
+ value = (bright >> 8) - 128;
+ btwrite(value & 0xff, BT848_BRIGHT);
+}
+
+static void bt848_hue(struct bttv *btv, int hue)
+{
+ int value;
+
+ btv->hue = hue;
+
+ /* -128 to 127 */
+ value = (hue >> 8) - 128;
+ btwrite(value & 0xff, BT848_HUE);
+}
+
+static void bt848_contrast(struct bttv *btv, int cont)
+{
+ int value,hibit;
+
+ btv->contrast = cont;
+
+ /* 0-511 */
+ value = (cont >> 7);
+ hibit = (value >> 6) & 4;
+ btwrite(value & 0xff, BT848_CONTRAST_LO);
+ btaor(hibit, ~4, BT848_E_CONTROL);
+ btaor(hibit, ~4, BT848_O_CONTROL);
+}
+
+static void bt848_sat(struct bttv *btv, int color)
+{
+ int val_u,val_v,hibits;
+
+ btv->saturation = color;
+
+ /* 0-511 for the color */
+ val_u = ((color * btv->opt_uv_ratio) / 50) >> 7;
+ val_v = (((color * (100 - btv->opt_uv_ratio) / 50) >>7)*180L)/254;
+ hibits = (val_u >> 7) & 2;
+ hibits |= (val_v >> 8) & 1;
+ btwrite(val_u & 0xff, BT848_SAT_U_LO);
+ btwrite(val_v & 0xff, BT848_SAT_V_LO);
+ btaor(hibits, ~3, BT848_E_CONTROL);
+ btaor(hibits, ~3, BT848_O_CONTROL);
+}
+
+/* ----------------------------------------------------------------------- */
+
+static int
+video_mux(struct bttv *btv, unsigned int input)
+{
+ int mux,mask2;
+
+ if (input >= bttv_tvcards[btv->c.type].video_inputs)
+ return -EINVAL;
+
+ /* needed by RemoteVideo MX */
+ mask2 = bttv_tvcards[btv->c.type].gpiomask2;
+ if (mask2)
+ gpio_inout(mask2,mask2);
+
+ if (input == btv->svhs) {
+ btor(BT848_CONTROL_COMP, BT848_E_CONTROL);
+ btor(BT848_CONTROL_COMP, BT848_O_CONTROL);
+ } else {
+ btand(~BT848_CONTROL_COMP, BT848_E_CONTROL);
+ btand(~BT848_CONTROL_COMP, BT848_O_CONTROL);
+ }
+ mux = bttv_muxsel(btv, input);
+ btaor(mux<<5, ~(3<<5), BT848_IFORM);
+ dprintk("%d: video mux: input=%d mux=%d\n", btv->c.nr, input, mux);
+
+ /* card specific hook */
+ if(bttv_tvcards[btv->c.type].muxsel_hook)
+ bttv_tvcards[btv->c.type].muxsel_hook (btv, input);
+ return 0;
+}
+
+static char *audio_modes[] = {
+ "audio: tuner", "audio: radio", "audio: extern",
+ "audio: intern", "audio: mute"
+};
+
+static void
+audio_mux_gpio(struct bttv *btv, int input, int mute)
+{
+ int gpio_val, signal, mute_gpio;
+
+ gpio_inout(bttv_tvcards[btv->c.type].gpiomask,
+ bttv_tvcards[btv->c.type].gpiomask);
+ signal = btread(BT848_DSTATUS) & BT848_DSTATUS_HLOC;
+
+ /* automute */
+ mute_gpio = mute || (btv->opt_automute && (!signal || !btv->users)
+ && !btv->has_radio_tuner);
+
+ if (mute_gpio)
+ gpio_val = bttv_tvcards[btv->c.type].gpiomute;
+ else
+ gpio_val = bttv_tvcards[btv->c.type].gpiomux[input];
+
+ switch (btv->c.type) {
+ case BTTV_BOARD_VOODOOTV_FM:
+ case BTTV_BOARD_VOODOOTV_200:
+ gpio_val = bttv_tda9880_setnorm(btv, gpio_val);
+ break;
+
+ default:
+ gpio_bits(bttv_tvcards[btv->c.type].gpiomask, gpio_val);
+ }
+
+ if (bttv_gpio)
+ bttv_gpio_tracking(btv, audio_modes[mute_gpio ? 4 : input]);
+}
+
+static int
+audio_mute(struct bttv *btv, int mute)
+{
+ struct v4l2_ctrl *ctrl;
+
+ audio_mux_gpio(btv, btv->audio_input, mute);
+
+ if (btv->sd_msp34xx) {
+ ctrl = v4l2_ctrl_find(btv->sd_msp34xx->ctrl_handler, V4L2_CID_AUDIO_MUTE);
+ if (ctrl)
+ v4l2_ctrl_s_ctrl(ctrl, mute);
+ }
+ if (btv->sd_tvaudio) {
+ ctrl = v4l2_ctrl_find(btv->sd_tvaudio->ctrl_handler, V4L2_CID_AUDIO_MUTE);
+ if (ctrl)
+ v4l2_ctrl_s_ctrl(ctrl, mute);
+ }
+ if (btv->sd_tda7432) {
+ ctrl = v4l2_ctrl_find(btv->sd_tda7432->ctrl_handler, V4L2_CID_AUDIO_MUTE);
+ if (ctrl)
+ v4l2_ctrl_s_ctrl(ctrl, mute);
+ }
+ return 0;
+}
+
+static int
+audio_input(struct bttv *btv, int input)
+{
+ audio_mux_gpio(btv, input, btv->mute);
+
+ if (btv->sd_msp34xx) {
+ u32 in;
+
+ /* Note: the inputs tuner/radio/extern/intern are translated
+ to msp routings. This assumes common behavior for all msp3400
+ based TV cards. When this assumption fails, then the
+ specific MSP routing must be added to the card table.
+ For now this is sufficient. */
+ switch (input) {
+ case TVAUDIO_INPUT_RADIO:
+ /* Some boards need the msp do to the radio demod */
+ if (btv->radio_uses_msp_demodulator) {
+ in = MSP_INPUT_DEFAULT;
+ break;
+ }
+ in = MSP_INPUT(MSP_IN_SCART2, MSP_IN_TUNER1,
+ MSP_DSP_IN_SCART, MSP_DSP_IN_SCART);
+ break;
+ case TVAUDIO_INPUT_EXTERN:
+ in = MSP_INPUT(MSP_IN_SCART1, MSP_IN_TUNER1,
+ MSP_DSP_IN_SCART, MSP_DSP_IN_SCART);
+ break;
+ case TVAUDIO_INPUT_INTERN:
+ /* Yes, this is the same input as for RADIO. I doubt
+ if this is ever used. The only board with an INTERN
+ input is the BTTV_BOARD_AVERMEDIA98. I wonder how
+ that was tested. My guess is that the whole INTERN
+ input does not work. */
+ in = MSP_INPUT(MSP_IN_SCART2, MSP_IN_TUNER1,
+ MSP_DSP_IN_SCART, MSP_DSP_IN_SCART);
+ break;
+ case TVAUDIO_INPUT_TUNER:
+ default:
+ /* This is the only card that uses TUNER2, and afaik,
+ is the only difference between the VOODOOTV_FM
+ and VOODOOTV_200 */
+ if (btv->c.type == BTTV_BOARD_VOODOOTV_200)
+ in = MSP_INPUT(MSP_IN_SCART1, MSP_IN_TUNER2, \
+ MSP_DSP_IN_TUNER, MSP_DSP_IN_TUNER);
+ else
+ in = MSP_INPUT_DEFAULT;
+ break;
+ }
+ v4l2_subdev_call(btv->sd_msp34xx, audio, s_routing,
+ in, MSP_OUTPUT_DEFAULT, 0);
+ }
+ if (btv->sd_tvaudio) {
+ v4l2_subdev_call(btv->sd_tvaudio, audio, s_routing,
+ input, 0, 0);
+ }
+ return 0;
+}
+
+static void
+bttv_crop_calc_limits(struct bttv_crop *c)
+{
+ /* Scale factor min. 1:1, max. 16:1. Min. image size
+ 48 x 32. Scaled width must be a multiple of 4. */
+
+ if (1) {
+ /* For bug compatibility with VIDIOCGCAP and image
+ size checks in earlier driver versions. */
+ c->min_scaled_width = 48;
+ c->min_scaled_height = 32;
+ } else {
+ c->min_scaled_width =
+ (max_t(unsigned int, 48, c->rect.width >> 4) + 3) & ~3;
+ c->min_scaled_height =
+ max_t(unsigned int, 32, c->rect.height >> 4);
+ }
+
+ c->max_scaled_width = c->rect.width & ~3;
+ c->max_scaled_height = c->rect.height;
+}
+
+static void
+bttv_crop_reset(struct bttv_crop *c, unsigned int norm)
+{
+ c->rect = bttv_tvnorms[norm].cropcap.defrect;
+ bttv_crop_calc_limits(c);
+}
+
+/* Call with btv->lock down. */
+static int
+set_tvnorm(struct bttv *btv, unsigned int norm)
+{
+ const struct bttv_tvnorm *tvnorm;
+ v4l2_std_id id;
+
+ BUG_ON(norm >= BTTV_TVNORMS);
+ BUG_ON(btv->tvnorm >= BTTV_TVNORMS);
+
+ tvnorm = &bttv_tvnorms[norm];
+
+ if (memcmp(&bttv_tvnorms[btv->tvnorm].cropcap, &tvnorm->cropcap,
+ sizeof (tvnorm->cropcap))) {
+ bttv_crop_reset(&btv->crop[0], norm);
+ btv->crop[1] = btv->crop[0]; /* current = default */
+
+ if (0 == (btv->resources & VIDEO_RESOURCES)) {
+ btv->crop_start = tvnorm->cropcap.bounds.top
+ + tvnorm->cropcap.bounds.height;
+ }
+ }
+
+ btv->tvnorm = norm;
+
+ btwrite(tvnorm->adelay, BT848_ADELAY);
+ btwrite(tvnorm->bdelay, BT848_BDELAY);
+ btaor(tvnorm->iform,~(BT848_IFORM_NORM|BT848_IFORM_XTBOTH),
+ BT848_IFORM);
+ btwrite(tvnorm->vbipack, BT848_VBI_PACK_SIZE);
+ btwrite(1, BT848_VBI_PACK_DEL);
+ bt848A_set_timing(btv);
+
+ switch (btv->c.type) {
+ case BTTV_BOARD_VOODOOTV_FM:
+ case BTTV_BOARD_VOODOOTV_200:
+ bttv_tda9880_setnorm(btv, gpio_read());
+ break;
+ }
+ id = tvnorm->v4l2_id;
+ bttv_call_all(btv, video, s_std, id);
+
+ return 0;
+}
+
+/* Call with btv->lock down. */
+static void
+set_input(struct bttv *btv, unsigned int input, unsigned int norm)
+{
+ unsigned long flags;
+
+ btv->input = input;
+ if (irq_iswitch) {
+ spin_lock_irqsave(&btv->s_lock,flags);
+ if (btv->curr.frame_irq) {
+ /* active capture -> delayed input switch */
+ btv->new_input = input;
+ } else {
+ video_mux(btv,input);
+ }
+ spin_unlock_irqrestore(&btv->s_lock,flags);
+ } else {
+ video_mux(btv,input);
+ }
+ btv->audio_input = (btv->tuner_type != TUNER_ABSENT && input == 0) ?
+ TVAUDIO_INPUT_TUNER : TVAUDIO_INPUT_EXTERN;
+ audio_input(btv, btv->audio_input);
+ set_tvnorm(btv, norm);
+}
+
+static void init_irqreg(struct bttv *btv)
+{
+ /* clear status */
+ btwrite(0xfffffUL, BT848_INT_STAT);
+
+ if (bttv_tvcards[btv->c.type].no_video) {
+ /* i2c only */
+ btwrite(BT848_INT_I2CDONE,
+ BT848_INT_MASK);
+ } else {
+ /* full video */
+ btwrite((btv->triton1) |
+ (btv->gpioirq ? BT848_INT_GPINT : 0) |
+ BT848_INT_SCERR |
+ (fdsr ? BT848_INT_FDSR : 0) |
+ BT848_INT_RISCI | BT848_INT_OCERR |
+ BT848_INT_FMTCHG|BT848_INT_HLOCK|
+ BT848_INT_I2CDONE,
+ BT848_INT_MASK);
+ }
+}
+
+static void init_bt848(struct bttv *btv)
+{
+ 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);
+
+ btwrite(0x20, BT848_E_VSCALE_HI);
+ btwrite(0x20, BT848_O_VSCALE_HI);
+
+ v4l2_ctrl_handler_setup(&btv->ctrl_handler);
+
+ /* interrupt */
+ init_irqreg(btv);
+}
+
+static void bttv_reinit_bt848(struct bttv *btv)
+{
+ unsigned long flags;
+
+ if (bttv_verbose)
+ pr_info("%d: reset, reinitialize\n", btv->c.nr);
+ spin_lock_irqsave(&btv->s_lock,flags);
+ btv->errors=0;
+ bttv_set_dma(btv,0);
+ spin_unlock_irqrestore(&btv->s_lock,flags);
+
+ init_bt848(btv);
+ btv->pll.pll_current = -1;
+ set_input(btv, btv->input, btv->tvnorm);
+}
+
+static int bttv_s_ctrl(struct v4l2_ctrl *c)
+{
+ struct bttv *btv = container_of(c->handler, struct bttv, ctrl_handler);
+ int val;
+
+ switch (c->id) {
+ case V4L2_CID_BRIGHTNESS:
+ bt848_bright(btv, c->val);
+ break;
+ case V4L2_CID_HUE:
+ bt848_hue(btv, c->val);
+ break;
+ case V4L2_CID_CONTRAST:
+ bt848_contrast(btv, c->val);
+ break;
+ case V4L2_CID_SATURATION:
+ bt848_sat(btv, c->val);
+ break;
+ case V4L2_CID_COLOR_KILLER:
+ if (c->val) {
+ btor(BT848_SCLOOP_CKILL, BT848_E_SCLOOP);
+ btor(BT848_SCLOOP_CKILL, BT848_O_SCLOOP);
+ } else {
+ btand(~BT848_SCLOOP_CKILL, BT848_E_SCLOOP);
+ btand(~BT848_SCLOOP_CKILL, BT848_O_SCLOOP);
+ }
+ break;
+ case V4L2_CID_AUDIO_MUTE:
+ audio_mute(btv, c->val);
+ btv->mute = c->val;
+ break;
+ case V4L2_CID_AUDIO_VOLUME:
+ btv->volume_gpio(btv, c->val);
+ break;
+
+ case V4L2_CID_CHROMA_AGC:
+ val = c->val ? BT848_SCLOOP_CAGC : 0;
+ btwrite(val, BT848_E_SCLOOP);
+ btwrite(val, BT848_O_SCLOOP);
+ break;
+ case V4L2_CID_PRIVATE_COMBFILTER:
+ btv->opt_combfilter = c->val;
+ break;
+ case V4L2_CID_PRIVATE_LUMAFILTER:
+ if (c->val) {
+ 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->val;
+ break;
+ case V4L2_CID_PRIVATE_AGC_CRUSH:
+ btwrite(BT848_ADC_RESERVED |
+ (c->val ? BT848_ADC_CRUSH : 0),
+ BT848_ADC);
+ break;
+ case V4L2_CID_PRIVATE_VCR_HACK:
+ btv->opt_vcr_hack = c->val;
+ break;
+ case V4L2_CID_PRIVATE_WHITECRUSH_UPPER:
+ btwrite(c->val, BT848_WC_UP);
+ break;
+ case V4L2_CID_PRIVATE_WHITECRUSH_LOWER:
+ btwrite(c->val, BT848_WC_DOWN);
+ break;
+ case V4L2_CID_PRIVATE_UV_RATIO:
+ btv->opt_uv_ratio = c->val;
+ bt848_sat(btv, btv->saturation);
+ break;
+ case V4L2_CID_PRIVATE_FULL_LUMA_RANGE:
+ btaor((c->val << 7), ~BT848_OFORM_RANGE, BT848_OFORM);
+ break;
+ case V4L2_CID_PRIVATE_CORING:
+ btaor((c->val << 5), ~BT848_OFORM_CORE32, BT848_OFORM);
+ break;
+ default:
+ return -EINVAL;
+ }
+ return 0;
+}
+
+/* ----------------------------------------------------------------------- */
+
+static const struct v4l2_ctrl_ops bttv_ctrl_ops = {
+ .s_ctrl = bttv_s_ctrl,
+};
+
+static struct v4l2_ctrl_config bttv_ctrl_combfilter = {
+ .ops = &bttv_ctrl_ops,
+ .id = V4L2_CID_PRIVATE_COMBFILTER,
+ .name = "Comb Filter",
+ .type = V4L2_CTRL_TYPE_BOOLEAN,
+ .min = 0,
+ .max = 1,
+ .step = 1,
+ .def = 1,
+};
+
+static struct v4l2_ctrl_config bttv_ctrl_automute = {
+ .ops = &bttv_ctrl_ops,
+ .id = V4L2_CID_PRIVATE_AUTOMUTE,
+ .name = "Auto Mute",
+ .type = V4L2_CTRL_TYPE_BOOLEAN,
+ .min = 0,
+ .max = 1,
+ .step = 1,
+ .def = 1,
+};
+
+static struct v4l2_ctrl_config bttv_ctrl_lumafilter = {
+ .ops = &bttv_ctrl_ops,
+ .id = V4L2_CID_PRIVATE_LUMAFILTER,
+ .name = "Luma Decimation Filter",
+ .type = V4L2_CTRL_TYPE_BOOLEAN,
+ .min = 0,
+ .max = 1,
+ .step = 1,
+ .def = 1,
+};
+
+static struct v4l2_ctrl_config bttv_ctrl_agc_crush = {
+ .ops = &bttv_ctrl_ops,
+ .id = V4L2_CID_PRIVATE_AGC_CRUSH,
+ .name = "AGC Crush",
+ .type = V4L2_CTRL_TYPE_BOOLEAN,
+ .min = 0,
+ .max = 1,
+ .step = 1,
+ .def = 1,
+};
+
+static struct v4l2_ctrl_config bttv_ctrl_vcr_hack = {
+ .ops = &bttv_ctrl_ops,
+ .id = V4L2_CID_PRIVATE_VCR_HACK,
+ .name = "VCR Hack",
+ .type = V4L2_CTRL_TYPE_BOOLEAN,
+ .min = 0,
+ .max = 1,
+ .step = 1,
+ .def = 1,
+};
+
+static struct v4l2_ctrl_config bttv_ctrl_whitecrush_lower = {
+ .ops = &bttv_ctrl_ops,
+ .id = V4L2_CID_PRIVATE_WHITECRUSH_LOWER,
+ .name = "Whitecrush Lower",
+ .type = V4L2_CTRL_TYPE_INTEGER,
+ .min = 0,
+ .max = 255,
+ .step = 1,
+ .def = 0x7f,
+};
+
+static struct v4l2_ctrl_config bttv_ctrl_whitecrush_upper = {
+ .ops = &bttv_ctrl_ops,
+ .id = V4L2_CID_PRIVATE_WHITECRUSH_UPPER,
+ .name = "Whitecrush Upper",
+ .type = V4L2_CTRL_TYPE_INTEGER,
+ .min = 0,
+ .max = 255,
+ .step = 1,
+ .def = 0xcf,
+};
+
+static struct v4l2_ctrl_config bttv_ctrl_uv_ratio = {
+ .ops = &bttv_ctrl_ops,
+ .id = V4L2_CID_PRIVATE_UV_RATIO,
+ .name = "UV Ratio",
+ .type = V4L2_CTRL_TYPE_INTEGER,
+ .min = 0,
+ .max = 100,
+ .step = 1,
+ .def = 50,
+};
+
+static struct v4l2_ctrl_config bttv_ctrl_full_luma = {
+ .ops = &bttv_ctrl_ops,
+ .id = V4L2_CID_PRIVATE_FULL_LUMA_RANGE,
+ .name = "Full Luma Range",
+ .type = V4L2_CTRL_TYPE_BOOLEAN,
+ .min = 0,
+ .max = 1,
+ .step = 1,
+};
+
+static struct v4l2_ctrl_config bttv_ctrl_coring = {
+ .ops = &bttv_ctrl_ops,
+ .id = V4L2_CID_PRIVATE_CORING,
+ .name = "Coring",
+ .type = V4L2_CTRL_TYPE_INTEGER,
+ .min = 0,
+ .max = 3,
+ .step = 1,
+};
+
+
+/* ----------------------------------------------------------------------- */
+
+void bttv_gpio_tracking(struct bttv *btv, char *comment)
+{
+ unsigned int outbits, data;
+ outbits = btread(BT848_GPIO_OUT_EN);
+ data = btread(BT848_GPIO_DATA);
+ pr_debug("%d: gpio: en=%08x, out=%08x in=%08x [%s]\n",
+ btv->c.nr, outbits, data & outbits, data & ~outbits, comment);
+}
+
+static void bttv_field_count(struct bttv *btv)
+{
+ int need_count = 0;
+
+ if (btv->users)
+ need_count++;
+
+ if (need_count) {
+ /* start field counter */
+ btor(BT848_INT_VSYNC,BT848_INT_MASK);
+ } else {
+ /* stop field counter */
+ btand(~BT848_INT_VSYNC,BT848_INT_MASK);
+ btv->field_count = 0;
+ }
+}
+
+static const struct bttv_format*
+format_by_fourcc(int fourcc)
+{
+ unsigned int i;
+
+ for (i = 0; i < FORMATS; i++) {
+ if (-1 == formats[i].fourcc)
+ continue;
+ if (formats[i].fourcc == fourcc)
+ return formats+i;
+ }
+ return NULL;
+}
+
+/* ----------------------------------------------------------------------- */
+/* misc helpers */
+
+static int
+bttv_switch_overlay(struct bttv *btv, struct bttv_fh *fh,
+ struct bttv_buffer *new)
+{
+ struct bttv_buffer *old;
+ unsigned long flags;
+
+ dprintk("switch_overlay: enter [new=%p]\n", new);
+ if (new)
+ new->vb.state = VIDEOBUF_DONE;
+ spin_lock_irqsave(&btv->s_lock,flags);
+ old = btv->screen;
+ btv->screen = new;
+ btv->loop_irq |= 1;
+ bttv_set_dma(btv, 0x03);
+ spin_unlock_irqrestore(&btv->s_lock,flags);
+ if (NULL != old) {
+ dprintk("switch_overlay: old=%p state is %d\n",
+ old, old->vb.state);
+ bttv_dma_free(&fh->cap,btv, old);
+ kfree(old);
+ }
+ if (NULL == new)
+ free_btres_lock(btv,fh,RESOURCE_OVERLAY);
+ dprintk("switch_overlay: done\n");
+ return 0;
+}
+
+/* ----------------------------------------------------------------------- */
+/* video4linux (1) interface */
+
+static int bttv_prepare_buffer(struct videobuf_queue *q,struct bttv *btv,
+ struct bttv_buffer *buf,
+ const struct bttv_format *fmt,
+ unsigned int width, unsigned int height,
+ enum v4l2_field field)
+{
+ struct bttv_fh *fh = q->priv_data;
+ int redo_dma_risc = 0;
+ struct bttv_crop c;
+ int norm;
+ int rc;
+
+ /* check settings */
+ if (NULL == fmt)
+ return -EINVAL;
+ if (fmt->btformat == BT848_COLOR_FMT_RAW) {
+ width = RAW_BPL;
+ height = RAW_LINES*2;
+ if (width*height > buf->vb.bsize)
+ return -EINVAL;
+ buf->vb.size = buf->vb.bsize;
+
+ /* Make sure tvnorm and vbi_end remain consistent
+ until we're done. */
+
+ norm = btv->tvnorm;
+
+ /* In this mode capturing always starts at defrect.top
+ (default VDELAY), ignoring cropping parameters. */
+ if (btv->vbi_end > bttv_tvnorms[norm].cropcap.defrect.top) {
+ return -EINVAL;
+ }
+
+ c.rect = bttv_tvnorms[norm].cropcap.defrect;
+ } else {
+ norm = btv->tvnorm;
+ c = btv->crop[!!fh->do_crop];
+
+ if (width < c.min_scaled_width ||
+ width > c.max_scaled_width ||
+ height < c.min_scaled_height)
+ return -EINVAL;
+
+ switch (field) {
+ case V4L2_FIELD_TOP:
+ case V4L2_FIELD_BOTTOM:
+ case V4L2_FIELD_ALTERNATE:
+ /* btv->crop counts frame lines. Max. scale
+ factor is 16:1 for frames, 8:1 for fields. */
+ if (height * 2 > c.max_scaled_height)
+ return -EINVAL;
+ break;
+
+ default:
+ if (height > c.max_scaled_height)
+ return -EINVAL;
+ break;
+ }
+
+ buf->vb.size = (width * height * fmt->depth) >> 3;
+ if (0 != buf->vb.baddr && buf->vb.bsize < buf->vb.size)
+ return -EINVAL;
+ }
+
+ /* alloc + fill struct bttv_buffer (if changed) */
+ if (buf->vb.width != width || buf->vb.height != height ||
+ buf->vb.field != field ||
+ buf->tvnorm != norm || buf->fmt != fmt ||
+ buf->crop.top != c.rect.top ||
+ buf->crop.left != c.rect.left ||
+ buf->crop.width != c.rect.width ||
+ buf->crop.height != c.rect.height) {
+ buf->vb.width = width;
+ buf->vb.height = height;
+ buf->vb.field = field;
+ buf->tvnorm = norm;
+ buf->fmt = fmt;
+ buf->crop = c.rect;
+ redo_dma_risc = 1;
+ }
+
+ /* alloc risc memory */
+ if (VIDEOBUF_NEEDS_INIT == buf->vb.state) {
+ redo_dma_risc = 1;
+ if (0 != (rc = videobuf_iolock(q,&buf->vb,&btv->fbuf)))
+ goto fail;
+ }
+
+ if (redo_dma_risc)
+ if (0 != (rc = bttv_buffer_risc(btv,buf)))
+ goto fail;
+
+ buf->vb.state = VIDEOBUF_PREPARED;
+ return 0;
+
+ fail:
+ bttv_dma_free(q,btv,buf);
+ return rc;
+}
+
+static int
+buffer_setup(struct videobuf_queue *q, unsigned int *count, unsigned int *size)
+{
+ struct bttv_fh *fh = q->priv_data;
+
+ *size = fh->fmt->depth*fh->width*fh->height >> 3;
+ if (0 == *count)
+ *count = gbuffers;
+ if (*size * *count > gbuffers * gbufsize)
+ *count = (gbuffers * gbufsize) / *size;
+ return 0;
+}
+
+static int
+buffer_prepare(struct videobuf_queue *q, struct videobuf_buffer *vb,
+ enum v4l2_field field)
+{
+ struct bttv_buffer *buf = container_of(vb,struct bttv_buffer,vb);
+ struct bttv_fh *fh = q->priv_data;
+
+ return bttv_prepare_buffer(q,fh->btv, buf, fh->fmt,
+ fh->width, fh->height, field);
+}
+
+static void
+buffer_queue(struct videobuf_queue *q, struct videobuf_buffer *vb)
+{
+ struct bttv_buffer *buf = container_of(vb,struct bttv_buffer,vb);
+ struct bttv_fh *fh = q->priv_data;
+ struct bttv *btv = fh->btv;
+
+ buf->vb.state = VIDEOBUF_QUEUED;
+ list_add_tail(&buf->vb.queue,&btv->capture);
+ if (!btv->curr.frame_irq) {
+ btv->loop_irq |= 1;
+ bttv_set_dma(btv, 0x03);
+ }
+}
+
+static void buffer_release(struct videobuf_queue *q, struct videobuf_buffer *vb)
+{
+ struct bttv_buffer *buf = container_of(vb,struct bttv_buffer,vb);
+ struct bttv_fh *fh = q->priv_data;
+
+ bttv_dma_free(q,fh->btv,buf);
+}
+
+static const struct videobuf_queue_ops bttv_video_qops = {
+ .buf_setup = buffer_setup,
+ .buf_prepare = buffer_prepare,
+ .buf_queue = buffer_queue,
+ .buf_release = buffer_release,
+};
+
+static void radio_enable(struct bttv *btv)
+{
+ /* Switch to the radio tuner */
+ if (!btv->has_radio_tuner) {
+ btv->has_radio_tuner = 1;
+ bttv_call_all(btv, tuner, s_radio);
+ btv->audio_input = TVAUDIO_INPUT_RADIO;
+ audio_input(btv, btv->audio_input);
+ }
+}
+
+static int bttv_s_std(struct file *file, void *priv, v4l2_std_id id)
+{
+ struct bttv_fh *fh = priv;
+ struct bttv *btv = fh->btv;
+ unsigned int i;
+
+ for (i = 0; i < BTTV_TVNORMS; i++)
+ if (id & bttv_tvnorms[i].v4l2_id)
+ break;
+ if (i == BTTV_TVNORMS)
+ return -EINVAL;
+ btv->std = id;
+ set_tvnorm(btv, i);
+ return 0;
+}
+
+static int bttv_g_std(struct file *file, void *priv, v4l2_std_id *id)
+{
+ struct bttv_fh *fh = priv;
+ struct bttv *btv = fh->btv;
+
+ *id = btv->std;
+ return 0;
+}
+
+static int bttv_querystd(struct file *file, void *f, v4l2_std_id *id)
+{
+ struct bttv_fh *fh = f;
+ struct bttv *btv = fh->btv;
+
+ if (btread(BT848_DSTATUS) & BT848_DSTATUS_NUML)
+ *id &= V4L2_STD_625_50;
+ else
+ *id &= V4L2_STD_525_60;
+ return 0;
+}
+
+static int bttv_enum_input(struct file *file, void *priv,
+ struct v4l2_input *i)
+{
+ struct bttv_fh *fh = priv;
+ struct bttv *btv = fh->btv;
+
+ if (i->index >= bttv_tvcards[btv->c.type].video_inputs)
+ return -EINVAL;
+
+ i->type = V4L2_INPUT_TYPE_CAMERA;
+ i->audioset = 0;
+
+ if (btv->tuner_type != TUNER_ABSENT && i->index == 0) {
+ sprintf(i->name, "Television");
+ i->type = V4L2_INPUT_TYPE_TUNER;
+ i->tuner = 0;
+ } else if (i->index == btv->svhs) {
+ sprintf(i->name, "S-Video");
+ } else {
+ sprintf(i->name, "Composite%d", i->index);
+ }
+
+ if (i->index == btv->input) {
+ __u32 dstatus = btread(BT848_DSTATUS);
+ if (0 == (dstatus & BT848_DSTATUS_PRES))
+ i->status |= V4L2_IN_ST_NO_SIGNAL;
+ if (0 == (dstatus & BT848_DSTATUS_HLOC))
+ i->status |= V4L2_IN_ST_NO_H_LOCK;
+ }
+
+ i->std = BTTV_NORMS;
+ return 0;
+}
+
+static int bttv_g_input(struct file *file, void *priv, unsigned int *i)
+{
+ struct bttv_fh *fh = priv;
+ struct bttv *btv = fh->btv;
+
+ *i = btv->input;
+
+ return 0;
+}
+
+static int bttv_s_input(struct file *file, void *priv, unsigned int i)
+{
+ struct bttv_fh *fh = priv;
+ struct bttv *btv = fh->btv;
+
+ if (i >= bttv_tvcards[btv->c.type].video_inputs)
+ return -EINVAL;
+
+ set_input(btv, i, btv->tvnorm);
+ return 0;
+}
+
+static int bttv_s_tuner(struct file *file, void *priv,
+ const struct v4l2_tuner *t)
+{
+ struct bttv_fh *fh = priv;
+ struct bttv *btv = fh->btv;
+
+ if (t->index)
+ return -EINVAL;
+
+ bttv_call_all(btv, tuner, s_tuner, t);
+
+ if (btv->audio_mode_gpio) {
+ struct v4l2_tuner copy = *t;
+
+ btv->audio_mode_gpio(btv, &copy, 1);
+ }
+ return 0;
+}
+
+static int bttv_g_frequency(struct file *file, void *priv,
+ struct v4l2_frequency *f)
+{
+ struct bttv_fh *fh = priv;
+ struct bttv *btv = fh->btv;
+
+ if (f->tuner)
+ return -EINVAL;
+
+ if (f->type == V4L2_TUNER_RADIO)
+ radio_enable(btv);
+ f->frequency = f->type == V4L2_TUNER_RADIO ?
+ btv->radio_freq : btv->tv_freq;
+
+ return 0;
+}
+
+static void bttv_set_frequency(struct bttv *btv, const struct v4l2_frequency *f)
+{
+ struct v4l2_frequency new_freq = *f;
+
+ bttv_call_all(btv, tuner, s_frequency, f);
+ /* s_frequency may clamp the frequency, so get the actual
+ frequency before assigning radio/tv_freq. */
+ bttv_call_all(btv, tuner, g_frequency, &new_freq);
+ if (new_freq.type == V4L2_TUNER_RADIO) {
+ radio_enable(btv);
+ btv->radio_freq = new_freq.frequency;
+ if (btv->has_tea575x) {
+ btv->tea.freq = btv->radio_freq;
+ snd_tea575x_set_freq(&btv->tea);
+ }
+ } else {
+ btv->tv_freq = new_freq.frequency;
+ }
+}
+
+static int bttv_s_frequency(struct file *file, void *priv,
+ const struct v4l2_frequency *f)
+{
+ struct bttv_fh *fh = priv;
+ struct bttv *btv = fh->btv;
+
+ if (f->tuner)
+ return -EINVAL;
+
+ bttv_set_frequency(btv, f);
+ return 0;
+}
+
+static int bttv_log_status(struct file *file, void *f)
+{
+ struct video_device *vdev = video_devdata(file);
+ struct bttv_fh *fh = f;
+ struct bttv *btv = fh->btv;
+
+ v4l2_ctrl_handler_log_status(vdev->ctrl_handler, btv->c.v4l2_dev.name);
+ bttv_call_all(btv, core, log_status);
+ return 0;
+}
+
+#ifdef CONFIG_VIDEO_ADV_DEBUG
+static int bttv_g_register(struct file *file, void *f,
+ struct v4l2_dbg_register *reg)
+{
+ struct bttv_fh *fh = f;
+ struct bttv *btv = fh->btv;
+
+ /* bt848 has a 12-bit register space */
+ reg->reg &= 0xfff;
+ reg->val = btread(reg->reg);
+ reg->size = 1;
+
+ return 0;
+}
+
+static int bttv_s_register(struct file *file, void *f,
+ const struct v4l2_dbg_register *reg)
+{
+ struct bttv_fh *fh = f;
+ struct bttv *btv = fh->btv;
+
+ /* bt848 has a 12-bit register space */
+ btwrite(reg->val, reg->reg & 0xfff);
+
+ return 0;
+}
+#endif
+
+/* Given cropping boundaries b and the scaled width and height of a
+ single field or frame, which must not exceed hardware limits, this
+ function adjusts the cropping parameters c. */
+static void
+bttv_crop_adjust (struct bttv_crop * c,
+ const struct v4l2_rect * b,
+ __s32 width,
+ __s32 height,
+ enum v4l2_field field)
+{
+ __s32 frame_height = height << !V4L2_FIELD_HAS_BOTH(field);
+ __s32 max_left;
+ __s32 max_top;
+
+ if (width < c->min_scaled_width) {
+ /* Max. hor. scale factor 16:1. */
+ c->rect.width = width * 16;
+ } else if (width > c->max_scaled_width) {
+ /* Min. hor. scale factor 1:1. */
+ c->rect.width = width;
+
+ max_left = b->left + b->width - width;
+ max_left = min(max_left, (__s32) MAX_HDELAY);
+ if (c->rect.left > max_left)
+ c->rect.left = max_left;
+ }
+
+ if (height < c->min_scaled_height) {
+ /* Max. vert. scale factor 16:1, single fields 8:1. */
+ c->rect.height = height * 16;
+ } else if (frame_height > c->max_scaled_height) {
+ /* Min. vert. scale factor 1:1.
+ Top and height count field lines times two. */
+ c->rect.height = (frame_height + 1) & ~1;
+
+ max_top = b->top + b->height - c->rect.height;
+ if (c->rect.top > max_top)
+ c->rect.top = max_top;
+ }
+
+ bttv_crop_calc_limits(c);
+}
+
+/* Returns an error if scaling to a frame or single field with the given
+ width and height is not possible with the current cropping parameters
+ and width aligned according to width_mask. If adjust_size is TRUE the
+ function may adjust the width and/or height instead, rounding width
+ to (width + width_bias) & width_mask. If adjust_crop is TRUE it may
+ also adjust the current cropping parameters to get closer to the
+ desired image size. */
+static int
+limit_scaled_size_lock (struct bttv_fh * fh,
+ __s32 * width,
+ __s32 * height,
+ enum v4l2_field field,
+ unsigned int width_mask,
+ unsigned int width_bias,
+ int adjust_size,
+ int adjust_crop)
+{
+ struct bttv *btv = fh->btv;
+ const struct v4l2_rect *b;
+ struct bttv_crop *c;
+ __s32 min_width;
+ __s32 min_height;
+ __s32 max_width;
+ __s32 max_height;
+ int rc;
+
+ BUG_ON((int) width_mask >= 0 ||
+ width_bias >= (unsigned int) -width_mask);
+
+ /* Make sure tvnorm, vbi_end and the current cropping parameters
+ remain consistent until we're done. */
+
+ b = &bttv_tvnorms[btv->tvnorm].cropcap.bounds;
+
+ /* Do crop - use current, don't - use default parameters. */
+ c = &btv->crop[!!fh->do_crop];
+
+ if (fh->do_crop
+ && adjust_size
+ && adjust_crop
+ && !locked_btres(btv, VIDEO_RESOURCES)) {
+ min_width = 48;
+ min_height = 32;
+
+ /* We cannot scale up. When the scaled image is larger
+ than crop.rect we adjust the crop.rect as required
+ by the V4L2 spec, hence cropcap.bounds are our limit. */
+ max_width = min_t(unsigned int, b->width, MAX_HACTIVE);
+ max_height = b->height;
+
+ /* We cannot capture the same line as video and VBI data.
+ Note btv->vbi_end is really a minimum, see
+ bttv_vbi_try_fmt(). */
+ if (btv->vbi_end > b->top) {
+ max_height -= btv->vbi_end - b->top;
+ rc = -EBUSY;
+ if (min_height > max_height)
+ goto fail;
+ }
+ } else {
+ rc = -EBUSY;
+ if (btv->vbi_end > c->rect.top)
+ goto fail;
+
+ min_width = c->min_scaled_width;
+ min_height = c->min_scaled_height;
+ max_width = c->max_scaled_width;
+ max_height = c->max_scaled_height;
+
+ adjust_crop = 0;
+ }
+
+ min_width = (min_width - width_mask - 1) & width_mask;
+ max_width = max_width & width_mask;
+
+ /* Max. scale factor is 16:1 for frames, 8:1 for fields. */
+ /* Min. scale factor is 1:1. */
+ max_height >>= !V4L2_FIELD_HAS_BOTH(field);
+
+ if (adjust_size) {
+ *width = clamp(*width, min_width, max_width);
+ *height = clamp(*height, min_height, max_height);
+
+ /* Round after clamping to avoid overflow. */
+ *width = (*width + width_bias) & width_mask;
+
+ if (adjust_crop) {
+ bttv_crop_adjust(c, b, *width, *height, field);
+
+ if (btv->vbi_end > c->rect.top) {
+ /* Move the crop window out of the way. */
+ c->rect.top = btv->vbi_end;
+ }
+ }
+ } else {
+ rc = -EINVAL;
+ if (*width < min_width ||
+ *height < min_height ||
+ *width > max_width ||
+ *height > max_height ||
+ 0 != (*width & ~width_mask))
+ goto fail;
+ }
+
+ rc = 0; /* success */
+
+ fail:
+
+ return rc;
+}
+
+/* Returns an error if the given overlay window dimensions are not
+ possible with the current cropping parameters. If adjust_size is
+ TRUE the function may adjust the window width and/or height
+ instead, however it always rounds the horizontal position and
+ width as btcx_align() does. If adjust_crop is TRUE the function
+ may also adjust the current cropping parameters to get closer
+ to the desired window size. */
+static int
+verify_window_lock(struct bttv_fh *fh, struct v4l2_window *win,
+ int adjust_size, int adjust_crop)
+{
+ enum v4l2_field field;
+ unsigned int width_mask;
+
+ if (win->w.width < 48)
+ win->w.width = 48;
+ if (win->w.height < 32)
+ win->w.height = 32;
+ if (win->clipcount > 2048)
+ win->clipcount = 2048;
+
+ win->chromakey = 0;
+ win->global_alpha = 0;
+ field = win->field;
+
+ switch (field) {
+ case V4L2_FIELD_TOP:
+ case V4L2_FIELD_BOTTOM:
+ case V4L2_FIELD_INTERLACED:
+ break;
+ default:
+ field = V4L2_FIELD_ANY;
+ break;
+ }
+ if (V4L2_FIELD_ANY == field) {
+ __s32 height2;
+
+ height2 = fh->btv->crop[!!fh->do_crop].rect.height >> 1;
+ field = (win->w.height > height2)
+ ? V4L2_FIELD_INTERLACED
+ : V4L2_FIELD_TOP;
+ }
+ win->field = field;
+
+ if (NULL == fh->ovfmt)
+ return -EINVAL;
+ /* 4-byte alignment. */
+ width_mask = ~0;
+ switch (fh->ovfmt->depth) {
+ case 8:
+ case 24:
+ width_mask = ~3;
+ break;
+ case 16:
+ width_mask = ~1;
+ break;
+ case 32:
+ break;
+ default:
+ BUG();
+ }
+
+ win->w.width -= win->w.left & ~width_mask;
+ win->w.left = (win->w.left - width_mask - 1) & width_mask;
+
+ return limit_scaled_size_lock(fh, &win->w.width, &win->w.height,
+ field, width_mask,
+ /* width_bias: round down */ 0,
+ adjust_size, adjust_crop);
+}
+
+static int setup_window_lock(struct bttv_fh *fh, struct bttv *btv,
+ struct v4l2_window *win, int fixup)
+{
+ struct v4l2_clip *clips = NULL;
+ int n,size,retval = 0;
+
+ if (NULL == fh->ovfmt)
+ return -EINVAL;
+ if (!(fh->ovfmt->flags & FORMAT_FLAGS_PACKED))
+ return -EINVAL;
+ retval = verify_window_lock(fh, win,
+ /* adjust_size */ fixup,
+ /* adjust_crop */ fixup);
+ if (0 != retval)
+ return retval;
+
+ /* copy clips -- luckily v4l1 + v4l2 are binary
+ compatible here ...*/
+ n = win->clipcount;
+ size = sizeof(*clips)*(n+4);
+ clips = kmalloc(size,GFP_KERNEL);
+ if (NULL == clips)
+ return -ENOMEM;
+ if (n > 0)
+ memcpy(clips, win->clips, sizeof(struct v4l2_clip) * n);
+
+ /* clip against screen */
+ if (NULL != btv->fbuf.base)
+ n = btcx_screen_clips(btv->fbuf.fmt.width, btv->fbuf.fmt.height,
+ &win->w, clips, n);
+ btcx_sort_clips(clips,n);
+
+ /* 4-byte alignments */
+ switch (fh->ovfmt->depth) {
+ case 8:
+ case 24:
+ btcx_align(&win->w, clips, n, 3);
+ break;
+ case 16:
+ btcx_align(&win->w, clips, n, 1);
+ break;
+ case 32:
+ /* no alignment fixups needed */
+ break;
+ default:
+ BUG();
+ }
+
+ kfree(fh->ov.clips);
+ fh->ov.clips = clips;
+ fh->ov.nclips = n;
+
+ fh->ov.w = win->w;
+ fh->ov.field = win->field;
+ fh->ov.setup_ok = 1;
+
+ btv->init.ov.w.width = win->w.width;
+ btv->init.ov.w.height = win->w.height;
+ btv->init.ov.field = win->field;
+
+ /* update overlay if needed */
+ retval = 0;
+ if (check_btres(fh, RESOURCE_OVERLAY)) {
+ struct bttv_buffer *new;
+
+ new = videobuf_sg_alloc(sizeof(*new));
+ new->crop = btv->crop[!!fh->do_crop].rect;
+ bttv_overlay_risc(btv, &fh->ov, fh->ovfmt, new);
+ retval = bttv_switch_overlay(btv,fh,new);
+ }
+ return retval;
+}
+
+/* ----------------------------------------------------------------------- */
+
+static struct videobuf_queue* bttv_queue(struct bttv_fh *fh)
+{
+ struct videobuf_queue* q = NULL;
+
+ switch (fh->type) {
+ case V4L2_BUF_TYPE_VIDEO_CAPTURE:
+ q = &fh->cap;
+ break;
+ case V4L2_BUF_TYPE_VBI_CAPTURE:
+ q = &fh->vbi;
+ break;
+ default:
+ BUG();
+ }
+ return q;
+}
+
+static int bttv_resource(struct bttv_fh *fh)
+{
+ int res = 0;
+
+ switch (fh->type) {
+ case V4L2_BUF_TYPE_VIDEO_CAPTURE:
+ res = RESOURCE_VIDEO_STREAM;
+ break;
+ case V4L2_BUF_TYPE_VBI_CAPTURE:
+ res = RESOURCE_VBI;
+ break;
+ default:
+ BUG();
+ }
+ return res;
+}
+
+static int bttv_switch_type(struct bttv_fh *fh, enum v4l2_buf_type type)
+{
+ struct videobuf_queue *q = bttv_queue(fh);
+ int res = bttv_resource(fh);
+
+ if (check_btres(fh,res))
+ return -EBUSY;
+ if (videobuf_queue_is_busy(q))
+ return -EBUSY;
+ fh->type = type;
+ return 0;
+}
+
+static void
+pix_format_set_size (struct v4l2_pix_format * f,
+ const struct bttv_format * fmt,
+ unsigned int width,
+ unsigned int height)
+{
+ f->width = width;
+ f->height = height;
+
+ if (fmt->flags & FORMAT_FLAGS_PLANAR) {
+ f->bytesperline = width; /* Y plane */
+ f->sizeimage = (width * height * fmt->depth) >> 3;
+ } else {
+ f->bytesperline = (width * fmt->depth) >> 3;
+ f->sizeimage = height * f->bytesperline;
+ }
+}
+
+static int bttv_g_fmt_vid_cap(struct file *file, void *priv,
+ struct v4l2_format *f)
+{
+ struct bttv_fh *fh = priv;
+
+ pix_format_set_size(&f->fmt.pix, fh->fmt,
+ fh->width, fh->height);
+ f->fmt.pix.field = fh->cap.field;
+ f->fmt.pix.pixelformat = fh->fmt->fourcc;
+ f->fmt.pix.colorspace = V4L2_COLORSPACE_SMPTE170M;
+
+ return 0;
+}
+
+static int bttv_g_fmt_vid_overlay(struct file *file, void *priv,
+ struct v4l2_format *f)
+{
+ struct bttv_fh *fh = priv;
+
+ f->fmt.win.w = fh->ov.w;
+ f->fmt.win.field = fh->ov.field;
+
+ return 0;
+}
+
+static void bttv_get_width_mask_vid_cap(const struct bttv_format *fmt,
+ unsigned int *width_mask,
+ unsigned int *width_bias)
+{
+ if (fmt->flags & FORMAT_FLAGS_PLANAR) {
+ *width_mask = ~15; /* width must be a multiple of 16 pixels */
+ *width_bias = 8; /* nearest */
+ } else {
+ *width_mask = ~3; /* width must be a multiple of 4 pixels */
+ *width_bias = 2; /* nearest */
+ }
+}
+
+static int bttv_try_fmt_vid_cap(struct file *file, void *priv,
+ struct v4l2_format *f)
+{
+ const struct bttv_format *fmt;
+ struct bttv_fh *fh = priv;
+ struct bttv *btv = fh->btv;
+ enum v4l2_field field;
+ __s32 width, height;
+ __s32 height2;
+ unsigned int width_mask, width_bias;
+ int rc;
+
+ fmt = format_by_fourcc(f->fmt.pix.pixelformat);
+ if (NULL == fmt)
+ return -EINVAL;
+
+ field = f->fmt.pix.field;
+
+ switch (field) {
+ case V4L2_FIELD_TOP:
+ case V4L2_FIELD_BOTTOM:
+ case V4L2_FIELD_ALTERNATE:
+ case V4L2_FIELD_INTERLACED:
+ break;
+ case V4L2_FIELD_SEQ_BT:
+ case V4L2_FIELD_SEQ_TB:
+ if (!(fmt->flags & FORMAT_FLAGS_PLANAR)) {
+ field = V4L2_FIELD_SEQ_TB;
+ break;
+ }
+ fallthrough;
+ default: /* FIELD_ANY case */
+ height2 = btv->crop[!!fh->do_crop].rect.height >> 1;
+ field = (f->fmt.pix.height > height2)
+ ? V4L2_FIELD_INTERLACED
+ : V4L2_FIELD_BOTTOM;
+ break;
+ }
+
+ width = f->fmt.pix.width;
+ height = f->fmt.pix.height;
+
+ bttv_get_width_mask_vid_cap(fmt, &width_mask, &width_bias);
+ rc = limit_scaled_size_lock(fh, &width, &height, field,
+ width_mask, width_bias,
+ /* adjust_size */ 1,
+ /* adjust_crop */ 0);
+ if (0 != rc)
+ return rc;
+
+ /* update data for the application */
+ f->fmt.pix.field = field;
+ pix_format_set_size(&f->fmt.pix, fmt, width, height);
+ f->fmt.pix.colorspace = V4L2_COLORSPACE_SMPTE170M;
+
+ return 0;
+}
+
+static int bttv_try_fmt_vid_overlay(struct file *file, void *priv,
+ struct v4l2_format *f)
+{
+ struct bttv_fh *fh = priv;
+
+ verify_window_lock(fh, &f->fmt.win,
+ /* adjust_size */ 1,
+ /* adjust_crop */ 0);
+ return 0;
+}
+
+static int bttv_s_fmt_vid_cap(struct file *file, void *priv,
+ struct v4l2_format *f)
+{
+ int retval;
+ const struct bttv_format *fmt;
+ struct bttv_fh *fh = priv;
+ struct bttv *btv = fh->btv;
+ __s32 width, height;
+ unsigned int width_mask, width_bias;
+ enum v4l2_field field;
+
+ retval = bttv_switch_type(fh, f->type);
+ if (0 != retval)
+ return retval;
+
+ retval = bttv_try_fmt_vid_cap(file, priv, f);
+ if (0 != retval)
+ return retval;
+
+ width = f->fmt.pix.width;
+ height = f->fmt.pix.height;
+ field = f->fmt.pix.field;
+
+ fmt = format_by_fourcc(f->fmt.pix.pixelformat);
+ bttv_get_width_mask_vid_cap(fmt, &width_mask, &width_bias);
+ retval = limit_scaled_size_lock(fh, &width, &height, f->fmt.pix.field,
+ width_mask, width_bias,
+ /* adjust_size */ 1,
+ /* adjust_crop */ 1);
+ if (0 != retval)
+ return retval;
+
+ f->fmt.pix.field = field;
+
+ /* update our state information */
+ fh->fmt = fmt;
+ fh->cap.field = f->fmt.pix.field;
+ fh->cap.last = V4L2_FIELD_NONE;
+ fh->width = f->fmt.pix.width;
+ fh->height = f->fmt.pix.height;
+ btv->init.fmt = fmt;
+ btv->init.width = f->fmt.pix.width;
+ btv->init.height = f->fmt.pix.height;
+
+ return 0;
+}
+
+static int bttv_s_fmt_vid_overlay(struct file *file, void *priv,
+ struct v4l2_format *f)
+{
+ struct bttv_fh *fh = priv;
+ struct bttv *btv = fh->btv;
+
+ if (no_overlay > 0) {
+ pr_err("V4L2_BUF_TYPE_VIDEO_OVERLAY: no_overlay\n");
+ return -EINVAL;
+ }
+
+ return setup_window_lock(fh, btv, &f->fmt.win, 1);
+}
+
+static int bttv_querycap(struct file *file, void *priv,
+ struct v4l2_capability *cap)
+{
+ struct bttv_fh *fh = priv;
+ struct bttv *btv = fh->btv;
+
+ if (0 == v4l2)
+ return -EINVAL;
+
+ strscpy(cap->driver, "bttv", sizeof(cap->driver));
+ strscpy(cap->card, btv->video_dev.name, sizeof(cap->card));
+ cap->capabilities = V4L2_CAP_VIDEO_CAPTURE | V4L2_CAP_READWRITE |
+ V4L2_CAP_STREAMING | V4L2_CAP_DEVICE_CAPS;
+ if (no_overlay <= 0)
+ cap->capabilities |= V4L2_CAP_VIDEO_OVERLAY;
+ if (video_is_registered(&btv->vbi_dev))
+ cap->capabilities |= V4L2_CAP_VBI_CAPTURE;
+ if (video_is_registered(&btv->radio_dev)) {
+ cap->capabilities |= V4L2_CAP_RADIO;
+ if (btv->has_tea575x)
+ cap->capabilities |= V4L2_CAP_HW_FREQ_SEEK;
+ }
+
+ /*
+ * No need to lock here: those vars are initialized during board
+ * probe and remains untouched during the rest of the driver lifecycle
+ */
+ if (btv->has_saa6588)
+ cap->capabilities |= V4L2_CAP_RDS_CAPTURE;
+ if (btv->tuner_type != TUNER_ABSENT)
+ cap->capabilities |= V4L2_CAP_TUNER;
+ return 0;
+}
+
+static int bttv_enum_fmt_cap_ovr(struct v4l2_fmtdesc *f)
+{
+ int index = -1, i;
+
+ for (i = 0; i < FORMATS; i++) {
+ if (formats[i].fourcc != -1)
+ index++;
+ if ((unsigned int)index == f->index)
+ break;
+ }
+ if (FORMATS == i)
+ return -EINVAL;
+
+ f->pixelformat = formats[i].fourcc;
+
+ return i;
+}
+
+static int bttv_enum_fmt_vid_cap(struct file *file, void *priv,
+ struct v4l2_fmtdesc *f)
+{
+ int rc = bttv_enum_fmt_cap_ovr(f);
+
+ if (rc < 0)
+ return rc;
+
+ return 0;
+}
+
+static int bttv_enum_fmt_vid_overlay(struct file *file, void *priv,
+ struct v4l2_fmtdesc *f)
+{
+ int rc;
+
+ if (no_overlay > 0) {
+ pr_err("V4L2_BUF_TYPE_VIDEO_OVERLAY: no_overlay\n");
+ return -EINVAL;
+ }
+
+ rc = bttv_enum_fmt_cap_ovr(f);
+
+ if (rc < 0)
+ return rc;
+
+ if (!(formats[rc].flags & FORMAT_FLAGS_PACKED))
+ return -EINVAL;
+
+ return 0;
+}
+
+static int bttv_g_fbuf(struct file *file, void *f,
+ struct v4l2_framebuffer *fb)
+{
+ struct bttv_fh *fh = f;
+ struct bttv *btv = fh->btv;
+
+ *fb = btv->fbuf;
+ fb->capability = V4L2_FBUF_CAP_LIST_CLIPPING;
+ fb->flags = V4L2_FBUF_FLAG_PRIMARY;
+ if (fh->ovfmt)
+ fb->fmt.pixelformat = fh->ovfmt->fourcc;
+ return 0;
+}
+
+static int bttv_overlay(struct file *file, void *f, unsigned int on)
+{
+ struct bttv_fh *fh = f;
+ struct bttv *btv = fh->btv;
+ struct bttv_buffer *new;
+ int retval = 0;
+
+ if (on) {
+ /* verify args */
+ if (unlikely(!btv->fbuf.base)) {
+ return -EINVAL;
+ }
+ if (unlikely(!fh->ov.setup_ok)) {
+ dprintk("%d: overlay: !setup_ok\n", btv->c.nr);
+ retval = -EINVAL;
+ }
+ if (retval)
+ return retval;
+ }
+
+ if (!check_alloc_btres_lock(btv, fh, RESOURCE_OVERLAY))
+ return -EBUSY;
+
+ if (on) {
+ fh->ov.tvnorm = btv->tvnorm;
+ new = videobuf_sg_alloc(sizeof(*new));
+ new->crop = btv->crop[!!fh->do_crop].rect;
+ bttv_overlay_risc(btv, &fh->ov, fh->ovfmt, new);
+ } else {
+ new = NULL;
+ }
+
+ /* switch over */
+ retval = bttv_switch_overlay(btv, fh, new);
+ return retval;
+}
+
+static int bttv_s_fbuf(struct file *file, void *f,
+ const struct v4l2_framebuffer *fb)
+{
+ struct bttv_fh *fh = f;
+ struct bttv *btv = fh->btv;
+ const struct bttv_format *fmt;
+ int retval;
+
+ if (!capable(CAP_SYS_ADMIN) &&
+ !capable(CAP_SYS_RAWIO))
+ return -EPERM;
+
+ /* check args */
+ fmt = format_by_fourcc(fb->fmt.pixelformat);
+ if (NULL == fmt)
+ return -EINVAL;
+ if (0 == (fmt->flags & FORMAT_FLAGS_PACKED))
+ return -EINVAL;
+
+ retval = -EINVAL;
+ if (fb->flags & V4L2_FBUF_FLAG_OVERLAY) {
+ __s32 width = fb->fmt.width;
+ __s32 height = fb->fmt.height;
+
+ retval = limit_scaled_size_lock(fh, &width, &height,
+ V4L2_FIELD_INTERLACED,
+ /* width_mask */ ~3,
+ /* width_bias */ 2,
+ /* adjust_size */ 0,
+ /* adjust_crop */ 0);
+ if (0 != retval)
+ return retval;
+ }
+
+ /* ok, accept it */
+ btv->fbuf.base = fb->base;
+ btv->fbuf.fmt.width = fb->fmt.width;
+ btv->fbuf.fmt.height = fb->fmt.height;
+ if (0 != fb->fmt.bytesperline)
+ btv->fbuf.fmt.bytesperline = fb->fmt.bytesperline;
+ else
+ btv->fbuf.fmt.bytesperline = btv->fbuf.fmt.width*fmt->depth/8;
+
+ retval = 0;
+ fh->ovfmt = fmt;
+ btv->init.ovfmt = fmt;
+ if (fb->flags & V4L2_FBUF_FLAG_OVERLAY) {
+ fh->ov.w.left = 0;
+ fh->ov.w.top = 0;
+ fh->ov.w.width = fb->fmt.width;
+ fh->ov.w.height = fb->fmt.height;
+ btv->init.ov.w.width = fb->fmt.width;
+ btv->init.ov.w.height = fb->fmt.height;
+
+ kfree(fh->ov.clips);
+ fh->ov.clips = NULL;
+ fh->ov.nclips = 0;
+
+ if (check_btres(fh, RESOURCE_OVERLAY)) {
+ struct bttv_buffer *new;
+
+ new = videobuf_sg_alloc(sizeof(*new));
+ new->crop = btv->crop[!!fh->do_crop].rect;
+ bttv_overlay_risc(btv, &fh->ov, fh->ovfmt, new);
+ retval = bttv_switch_overlay(btv, fh, new);
+ }
+ }
+ return retval;
+}
+
+static int bttv_reqbufs(struct file *file, void *priv,
+ struct v4l2_requestbuffers *p)
+{
+ struct bttv_fh *fh = priv;
+ return videobuf_reqbufs(bttv_queue(fh), p);
+}
+
+static int bttv_querybuf(struct file *file, void *priv,
+ struct v4l2_buffer *b)
+{
+ struct bttv_fh *fh = priv;
+ return videobuf_querybuf(bttv_queue(fh), b);
+}
+
+static int bttv_qbuf(struct file *file, void *priv, struct v4l2_buffer *b)
+{
+ struct bttv_fh *fh = priv;
+ struct bttv *btv = fh->btv;
+ int res = bttv_resource(fh);
+
+ if (!check_alloc_btres_lock(btv, fh, res))
+ return -EBUSY;
+
+ return videobuf_qbuf(bttv_queue(fh), b);
+}
+
+static int bttv_dqbuf(struct file *file, void *priv, struct v4l2_buffer *b)
+{
+ struct bttv_fh *fh = priv;
+ return videobuf_dqbuf(bttv_queue(fh), b,
+ file->f_flags & O_NONBLOCK);
+}
+
+static int bttv_streamon(struct file *file, void *priv,
+ enum v4l2_buf_type type)
+{
+ struct bttv_fh *fh = priv;
+ struct bttv *btv = fh->btv;
+ int res = bttv_resource(fh);
+
+ if (!check_alloc_btres_lock(btv, fh, res))
+ return -EBUSY;
+ return videobuf_streamon(bttv_queue(fh));
+}
+
+
+static int bttv_streamoff(struct file *file, void *priv,
+ enum v4l2_buf_type type)
+{
+ struct bttv_fh *fh = priv;
+ struct bttv *btv = fh->btv;
+ int retval;
+ int res = bttv_resource(fh);
+
+
+ retval = videobuf_streamoff(bttv_queue(fh));
+ if (retval < 0)
+ return retval;
+ free_btres_lock(btv, fh, res);
+ return 0;
+}
+
+static int bttv_g_parm(struct file *file, void *f,
+ struct v4l2_streamparm *parm)
+{
+ struct bttv_fh *fh = f;
+ struct bttv *btv = fh->btv;
+
+ if (parm->type != V4L2_BUF_TYPE_VIDEO_CAPTURE)
+ return -EINVAL;
+ parm->parm.capture.readbuffers = gbuffers;
+ v4l2_video_std_frame_period(bttv_tvnorms[btv->tvnorm].v4l2_id,
+ &parm->parm.capture.timeperframe);
+
+ return 0;
+}
+
+static int bttv_g_tuner(struct file *file, void *priv,
+ struct v4l2_tuner *t)
+{
+ struct bttv_fh *fh = priv;
+ struct bttv *btv = fh->btv;
+
+ if (0 != t->index)
+ return -EINVAL;
+
+ t->rxsubchans = V4L2_TUNER_SUB_MONO;
+ t->capability = V4L2_TUNER_CAP_NORM;
+ bttv_call_all(btv, tuner, g_tuner, t);
+ strscpy(t->name, "Television", sizeof(t->name));
+ t->type = V4L2_TUNER_ANALOG_TV;
+ if (btread(BT848_DSTATUS)&BT848_DSTATUS_HLOC)
+ t->signal = 0xffff;
+
+ if (btv->audio_mode_gpio)
+ btv->audio_mode_gpio(btv, t, 0);
+
+ return 0;
+}
+
+static int bttv_g_pixelaspect(struct file *file, void *priv,
+ int type, struct v4l2_fract *f)
+{
+ struct bttv_fh *fh = priv;
+ struct bttv *btv = fh->btv;
+
+ if (type != V4L2_BUF_TYPE_VIDEO_CAPTURE)
+ return -EINVAL;
+
+ /* defrect and bounds are set via g_selection */
+ *f = bttv_tvnorms[btv->tvnorm].cropcap.pixelaspect;
+ return 0;
+}
+
+static int bttv_g_selection(struct file *file, void *f, struct v4l2_selection *sel)
+{
+ struct bttv_fh *fh = f;
+ struct bttv *btv = fh->btv;
+
+ if (sel->type != V4L2_BUF_TYPE_VIDEO_CAPTURE &&
+ sel->type != V4L2_BUF_TYPE_VIDEO_OVERLAY)
+ return -EINVAL;
+
+ switch (sel->target) {
+ case V4L2_SEL_TGT_CROP:
+ /*
+ * No fh->do_crop = 1; because btv->crop[1] may be
+ * inconsistent with fh->width or fh->height and apps
+ * do not expect a change here.
+ */
+ sel->r = btv->crop[!!fh->do_crop].rect;
+ break;
+ case V4L2_SEL_TGT_CROP_DEFAULT:
+ sel->r = bttv_tvnorms[btv->tvnorm].cropcap.defrect;
+ break;
+ case V4L2_SEL_TGT_CROP_BOUNDS:
+ sel->r = bttv_tvnorms[btv->tvnorm].cropcap.bounds;
+ break;
+ default:
+ return -EINVAL;
+ }
+
+ return 0;
+}
+
+static int bttv_s_selection(struct file *file, void *f, struct v4l2_selection *sel)
+{
+ struct bttv_fh *fh = f;
+ struct bttv *btv = fh->btv;
+ const struct v4l2_rect *b;
+ int retval;
+ struct bttv_crop c;
+ __s32 b_left;
+ __s32 b_top;
+ __s32 b_right;
+ __s32 b_bottom;
+
+ if (sel->type != V4L2_BUF_TYPE_VIDEO_CAPTURE &&
+ sel->type != V4L2_BUF_TYPE_VIDEO_OVERLAY)
+ return -EINVAL;
+
+ if (sel->target != V4L2_SEL_TGT_CROP)
+ return -EINVAL;
+
+ /* Make sure tvnorm, vbi_end and the current cropping
+ parameters remain consistent until we're done. Note
+ read() may change vbi_end in check_alloc_btres_lock(). */
+ retval = -EBUSY;
+
+ if (locked_btres(fh->btv, VIDEO_RESOURCES)) {
+ return retval;
+ }
+
+ b = &bttv_tvnorms[btv->tvnorm].cropcap.bounds;
+
+ b_left = b->left;
+ b_right = b_left + b->width;
+ b_bottom = b->top + b->height;
+
+ b_top = max(b->top, btv->vbi_end);
+ if (b_top + 32 >= b_bottom) {
+ return retval;
+ }
+
+ /* Min. scaled size 48 x 32. */
+ c.rect.left = clamp_t(s32, sel->r.left, b_left, b_right - 48);
+ c.rect.left = min(c.rect.left, (__s32) MAX_HDELAY);
+
+ c.rect.width = clamp_t(s32, sel->r.width,
+ 48, b_right - c.rect.left);
+
+ c.rect.top = clamp_t(s32, sel->r.top, b_top, b_bottom - 32);
+ /* Top and height must be a multiple of two. */
+ c.rect.top = (c.rect.top + 1) & ~1;
+
+ c.rect.height = clamp_t(s32, sel->r.height,
+ 32, b_bottom - c.rect.top);
+ c.rect.height = (c.rect.height + 1) & ~1;
+
+ bttv_crop_calc_limits(&c);
+
+ sel->r = c.rect;
+
+ btv->crop[1] = c;
+
+ fh->do_crop = 1;
+
+ if (fh->width < c.min_scaled_width) {
+ fh->width = c.min_scaled_width;
+ btv->init.width = c.min_scaled_width;
+ } else if (fh->width > c.max_scaled_width) {
+ fh->width = c.max_scaled_width;
+ btv->init.width = c.max_scaled_width;
+ }
+
+ if (fh->height < c.min_scaled_height) {
+ fh->height = c.min_scaled_height;
+ btv->init.height = c.min_scaled_height;
+ } else if (fh->height > c.max_scaled_height) {
+ fh->height = c.max_scaled_height;
+ btv->init.height = c.max_scaled_height;
+ }
+
+ return 0;
+}
+
+static ssize_t bttv_read(struct file *file, char __user *data,
+ size_t count, loff_t *ppos)
+{
+ struct bttv_fh *fh = file->private_data;
+ int retval = 0;
+
+ if (fh->btv->errors)
+ bttv_reinit_bt848(fh->btv);
+ dprintk("%d: read count=%d type=%s\n",
+ fh->btv->c.nr, (int)count, v4l2_type_names[fh->type]);
+
+ switch (fh->type) {
+ case V4L2_BUF_TYPE_VIDEO_CAPTURE:
+ if (!check_alloc_btres_lock(fh->btv, fh, RESOURCE_VIDEO_READ)) {
+ /* VIDEO_READ in use by another fh,
+ or VIDEO_STREAM by any fh. */
+ return -EBUSY;
+ }
+ retval = videobuf_read_one(&fh->cap, data, count, ppos,
+ file->f_flags & O_NONBLOCK);
+ free_btres_lock(fh->btv, fh, RESOURCE_VIDEO_READ);
+ break;
+ case V4L2_BUF_TYPE_VBI_CAPTURE:
+ if (!check_alloc_btres_lock(fh->btv,fh,RESOURCE_VBI))
+ return -EBUSY;
+ retval = videobuf_read_stream(&fh->vbi, data, count, ppos, 1,
+ file->f_flags & O_NONBLOCK);
+ break;
+ default:
+ BUG();
+ }
+ return retval;
+}
+
+static __poll_t bttv_poll(struct file *file, poll_table *wait)
+{
+ struct bttv_fh *fh = file->private_data;
+ struct bttv_buffer *buf;
+ enum v4l2_field field;
+ __poll_t rc = 0;
+ __poll_t req_events = poll_requested_events(wait);
+
+ if (v4l2_event_pending(&fh->fh))
+ rc = EPOLLPRI;
+ else if (req_events & EPOLLPRI)
+ poll_wait(file, &fh->fh.wait, wait);
+
+ if (!(req_events & (EPOLLIN | EPOLLRDNORM)))
+ return rc;
+
+ if (V4L2_BUF_TYPE_VBI_CAPTURE == fh->type) {
+ if (!check_alloc_btres_lock(fh->btv,fh,RESOURCE_VBI))
+ return rc | EPOLLERR;
+ return rc | videobuf_poll_stream(file, &fh->vbi, wait);
+ }
+
+ if (check_btres(fh,RESOURCE_VIDEO_STREAM)) {
+ /* streaming capture */
+ if (list_empty(&fh->cap.stream))
+ return rc | EPOLLERR;
+ buf = list_entry(fh->cap.stream.next,struct bttv_buffer,vb.stream);
+ } else {
+ /* read() capture */
+ if (NULL == fh->cap.read_buf) {
+ /* need to capture a new frame */
+ if (locked_btres(fh->btv,RESOURCE_VIDEO_STREAM))
+ return rc | EPOLLERR;
+ fh->cap.read_buf = videobuf_sg_alloc(fh->cap.msize);
+ if (NULL == fh->cap.read_buf)
+ return rc | EPOLLERR;
+ fh->cap.read_buf->memory = V4L2_MEMORY_USERPTR;
+ field = videobuf_next_field(&fh->cap);
+ if (0 != fh->cap.ops->buf_prepare(&fh->cap,fh->cap.read_buf,field)) {
+ kfree (fh->cap.read_buf);
+ fh->cap.read_buf = NULL;
+ return rc | EPOLLERR;
+ }
+ fh->cap.ops->buf_queue(&fh->cap,fh->cap.read_buf);
+ fh->cap.read_off = 0;
+ }
+ buf = (struct bttv_buffer*)fh->cap.read_buf;
+ }
+
+ poll_wait(file, &buf->vb.done, wait);
+ if (buf->vb.state == VIDEOBUF_DONE ||
+ buf->vb.state == VIDEOBUF_ERROR)
+ rc = rc | EPOLLIN|EPOLLRDNORM;
+ return rc;
+}
+
+static int bttv_open(struct file *file)
+{
+ struct video_device *vdev = video_devdata(file);
+ struct bttv *btv = video_drvdata(file);
+ struct bttv_fh *fh;
+ enum v4l2_buf_type type = 0;
+
+ dprintk("open dev=%s\n", video_device_node_name(vdev));
+
+ if (vdev->vfl_type == VFL_TYPE_VIDEO) {
+ type = V4L2_BUF_TYPE_VIDEO_CAPTURE;
+ } else if (vdev->vfl_type == VFL_TYPE_VBI) {
+ type = V4L2_BUF_TYPE_VBI_CAPTURE;
+ } else {
+ WARN_ON(1);
+ return -ENODEV;
+ }
+
+ dprintk("%d: open called (type=%s)\n",
+ btv->c.nr, v4l2_type_names[type]);
+
+ /* allocate per filehandle data */
+ fh = kmalloc(sizeof(*fh), GFP_KERNEL);
+ if (unlikely(!fh))
+ return -ENOMEM;
+ btv->users++;
+ file->private_data = fh;
+
+ *fh = btv->init;
+ v4l2_fh_init(&fh->fh, vdev);
+
+ fh->type = type;
+ fh->ov.setup_ok = 0;
+
+ videobuf_queue_sg_init(&fh->cap, &bttv_video_qops,
+ &btv->c.pci->dev, &btv->s_lock,
+ V4L2_BUF_TYPE_VIDEO_CAPTURE,
+ V4L2_FIELD_INTERLACED,
+ sizeof(struct bttv_buffer),
+ fh, &btv->lock);
+ videobuf_queue_sg_init(&fh->vbi, &bttv_vbi_qops,
+ &btv->c.pci->dev, &btv->s_lock,
+ V4L2_BUF_TYPE_VBI_CAPTURE,
+ V4L2_FIELD_SEQ_TB,
+ sizeof(struct bttv_buffer),
+ fh, &btv->lock);
+ set_tvnorm(btv,btv->tvnorm);
+ set_input(btv, btv->input, btv->tvnorm);
+ audio_mute(btv, btv->mute);
+
+ /* The V4L2 spec requires one global set of cropping parameters
+ which only change on request. These are stored in btv->crop[1].
+ However for compatibility with V4L apps and cropping unaware
+ V4L2 apps we now reset the cropping parameters as seen through
+ this fh, which is to say VIDIOC_G_SELECTION and scaling limit checks
+ will use btv->crop[0], the default cropping parameters for the
+ current video standard, and VIDIOC_S_FMT will not implicitly
+ change the cropping parameters until VIDIOC_S_SELECTION has been
+ called. */
+ fh->do_crop = !reset_crop; /* module parameter */
+
+ /* Likewise there should be one global set of VBI capture
+ parameters, but for compatibility with V4L apps and earlier
+ driver versions each fh has its own parameters. */
+ bttv_vbi_fmt_reset(&fh->vbi_fmt, btv->tvnorm);
+
+ bttv_field_count(btv);
+ v4l2_fh_add(&fh->fh);
+ return 0;
+}
+
+static int bttv_release(struct file *file)
+{
+ struct bttv_fh *fh = file->private_data;
+ struct bttv *btv = fh->btv;
+
+ /* turn off overlay */
+ if (check_btres(fh, RESOURCE_OVERLAY))
+ bttv_switch_overlay(btv,fh,NULL);
+
+ /* stop video capture */
+ if (check_btres(fh, RESOURCE_VIDEO_STREAM)) {
+ videobuf_streamoff(&fh->cap);
+ free_btres_lock(btv,fh,RESOURCE_VIDEO_STREAM);
+ }
+ if (fh->cap.read_buf) {
+ buffer_release(&fh->cap,fh->cap.read_buf);
+ kfree(fh->cap.read_buf);
+ }
+ if (check_btres(fh, RESOURCE_VIDEO_READ)) {
+ free_btres_lock(btv, fh, RESOURCE_VIDEO_READ);
+ }
+
+ /* stop vbi capture */
+ if (check_btres(fh, RESOURCE_VBI)) {
+ videobuf_stop(&fh->vbi);
+ free_btres_lock(btv,fh,RESOURCE_VBI);
+ }
+
+ /* free stuff */
+
+ videobuf_mmap_free(&fh->cap);
+ videobuf_mmap_free(&fh->vbi);
+ file->private_data = NULL;
+
+ btv->users--;
+ bttv_field_count(btv);
+
+ if (!btv->users)
+ audio_mute(btv, btv->mute);
+
+ v4l2_fh_del(&fh->fh);
+ v4l2_fh_exit(&fh->fh);
+ kfree(fh);
+ return 0;
+}
+
+static int
+bttv_mmap(struct file *file, struct vm_area_struct *vma)
+{
+ struct bttv_fh *fh = file->private_data;
+
+ dprintk("%d: mmap type=%s 0x%lx+%ld\n",
+ fh->btv->c.nr, v4l2_type_names[fh->type],
+ vma->vm_start, vma->vm_end - vma->vm_start);
+ return videobuf_mmap_mapper(bttv_queue(fh),vma);
+}
+
+static const struct v4l2_file_operations bttv_fops =
+{
+ .owner = THIS_MODULE,
+ .open = bttv_open,
+ .release = bttv_release,
+ .unlocked_ioctl = video_ioctl2,
+ .read = bttv_read,
+ .mmap = bttv_mmap,
+ .poll = bttv_poll,
+};
+
+static const struct v4l2_ioctl_ops bttv_ioctl_ops = {
+ .vidioc_querycap = bttv_querycap,
+ .vidioc_enum_fmt_vid_cap = bttv_enum_fmt_vid_cap,
+ .vidioc_g_fmt_vid_cap = bttv_g_fmt_vid_cap,
+ .vidioc_try_fmt_vid_cap = bttv_try_fmt_vid_cap,
+ .vidioc_s_fmt_vid_cap = bttv_s_fmt_vid_cap,
+ .vidioc_enum_fmt_vid_overlay = bttv_enum_fmt_vid_overlay,
+ .vidioc_g_fmt_vid_overlay = bttv_g_fmt_vid_overlay,
+ .vidioc_try_fmt_vid_overlay = bttv_try_fmt_vid_overlay,
+ .vidioc_s_fmt_vid_overlay = bttv_s_fmt_vid_overlay,
+ .vidioc_g_fmt_vbi_cap = bttv_g_fmt_vbi_cap,
+ .vidioc_try_fmt_vbi_cap = bttv_try_fmt_vbi_cap,
+ .vidioc_s_fmt_vbi_cap = bttv_s_fmt_vbi_cap,
+ .vidioc_g_pixelaspect = bttv_g_pixelaspect,
+ .vidioc_reqbufs = bttv_reqbufs,
+ .vidioc_querybuf = bttv_querybuf,
+ .vidioc_qbuf = bttv_qbuf,
+ .vidioc_dqbuf = bttv_dqbuf,
+ .vidioc_s_std = bttv_s_std,
+ .vidioc_g_std = bttv_g_std,
+ .vidioc_enum_input = bttv_enum_input,
+ .vidioc_g_input = bttv_g_input,
+ .vidioc_s_input = bttv_s_input,
+ .vidioc_streamon = bttv_streamon,
+ .vidioc_streamoff = bttv_streamoff,
+ .vidioc_g_tuner = bttv_g_tuner,
+ .vidioc_s_tuner = bttv_s_tuner,
+ .vidioc_g_selection = bttv_g_selection,
+ .vidioc_s_selection = bttv_s_selection,
+ .vidioc_g_fbuf = bttv_g_fbuf,
+ .vidioc_s_fbuf = bttv_s_fbuf,
+ .vidioc_overlay = bttv_overlay,
+ .vidioc_g_parm = bttv_g_parm,
+ .vidioc_g_frequency = bttv_g_frequency,
+ .vidioc_s_frequency = bttv_s_frequency,
+ .vidioc_log_status = bttv_log_status,
+ .vidioc_querystd = bttv_querystd,
+ .vidioc_subscribe_event = v4l2_ctrl_subscribe_event,
+ .vidioc_unsubscribe_event = v4l2_event_unsubscribe,
+#ifdef CONFIG_VIDEO_ADV_DEBUG
+ .vidioc_g_register = bttv_g_register,
+ .vidioc_s_register = bttv_s_register,
+#endif
+};
+
+static struct video_device bttv_video_template = {
+ .fops = &bttv_fops,
+ .ioctl_ops = &bttv_ioctl_ops,
+ .tvnorms = BTTV_NORMS,
+};
+
+/* ----------------------------------------------------------------------- */
+/* radio interface */
+
+static int radio_open(struct file *file)
+{
+ struct video_device *vdev = video_devdata(file);
+ struct bttv *btv = video_drvdata(file);
+ struct bttv_fh *fh;
+
+ dprintk("open dev=%s\n", video_device_node_name(vdev));
+
+ dprintk("%d: open called (radio)\n", btv->c.nr);
+
+ /* allocate per filehandle data */
+ fh = kmalloc(sizeof(*fh), GFP_KERNEL);
+ if (unlikely(!fh))
+ return -ENOMEM;
+ file->private_data = fh;
+ *fh = btv->init;
+ v4l2_fh_init(&fh->fh, vdev);
+
+ btv->radio_user++;
+ audio_mute(btv, btv->mute);
+
+ v4l2_fh_add(&fh->fh);
+
+ return 0;
+}
+
+static int radio_release(struct file *file)
+{
+ struct bttv_fh *fh = file->private_data;
+ struct bttv *btv = fh->btv;
+ struct saa6588_command cmd;
+
+ file->private_data = NULL;
+ v4l2_fh_del(&fh->fh);
+ v4l2_fh_exit(&fh->fh);
+ kfree(fh);
+
+ btv->radio_user--;
+
+ bttv_call_all(btv, core, command, SAA6588_CMD_CLOSE, &cmd);
+
+ if (btv->radio_user == 0)
+ btv->has_radio_tuner = 0;
+ return 0;
+}
+
+static int radio_g_tuner(struct file *file, void *priv, struct v4l2_tuner *t)
+{
+ struct bttv_fh *fh = priv;
+ struct bttv *btv = fh->btv;
+
+ if (0 != t->index)
+ return -EINVAL;
+ strscpy(t->name, "Radio", sizeof(t->name));
+ t->type = V4L2_TUNER_RADIO;
+ radio_enable(btv);
+
+ bttv_call_all(btv, tuner, g_tuner, t);
+
+ if (btv->audio_mode_gpio)
+ btv->audio_mode_gpio(btv, t, 0);
+
+ if (btv->has_tea575x)
+ return snd_tea575x_g_tuner(&btv->tea, t);
+
+ return 0;
+}
+
+static int radio_s_tuner(struct file *file, void *priv,
+ const struct v4l2_tuner *t)
+{
+ struct bttv_fh *fh = priv;
+ struct bttv *btv = fh->btv;
+
+ if (0 != t->index)
+ return -EINVAL;
+
+ radio_enable(btv);
+ bttv_call_all(btv, tuner, s_tuner, t);
+ return 0;
+}
+
+static int radio_s_hw_freq_seek(struct file *file, void *priv,
+ const struct v4l2_hw_freq_seek *a)
+{
+ struct bttv_fh *fh = priv;
+ struct bttv *btv = fh->btv;
+
+ if (btv->has_tea575x)
+ return snd_tea575x_s_hw_freq_seek(file, &btv->tea, a);
+
+ return -ENOTTY;
+}
+
+static int radio_enum_freq_bands(struct file *file, void *priv,
+ struct v4l2_frequency_band *band)
+{
+ struct bttv_fh *fh = priv;
+ struct bttv *btv = fh->btv;
+
+ if (btv->has_tea575x)
+ return snd_tea575x_enum_freq_bands(&btv->tea, band);
+
+ return -ENOTTY;
+}
+
+static ssize_t radio_read(struct file *file, char __user *data,
+ size_t count, loff_t *ppos)
+{
+ struct bttv_fh *fh = file->private_data;
+ struct bttv *btv = fh->btv;
+ struct saa6588_command cmd;
+
+ cmd.block_count = count / 3;
+ cmd.nonblocking = file->f_flags & O_NONBLOCK;
+ cmd.buffer = data;
+ cmd.instance = file;
+ cmd.result = -ENODEV;
+ radio_enable(btv);
+
+ bttv_call_all(btv, core, command, SAA6588_CMD_READ, &cmd);
+
+ return cmd.result;
+}
+
+static __poll_t radio_poll(struct file *file, poll_table *wait)
+{
+ struct bttv_fh *fh = file->private_data;
+ struct bttv *btv = fh->btv;
+ __poll_t req_events = poll_requested_events(wait);
+ struct saa6588_command cmd;
+ __poll_t res = 0;
+
+ if (v4l2_event_pending(&fh->fh))
+ res = EPOLLPRI;
+ else if (req_events & EPOLLPRI)
+ poll_wait(file, &fh->fh.wait, wait);
+ radio_enable(btv);
+ cmd.instance = file;
+ cmd.event_list = wait;
+ cmd.poll_mask = res;
+ bttv_call_all(btv, core, command, SAA6588_CMD_POLL, &cmd);
+
+ return cmd.poll_mask;
+}
+
+static const struct v4l2_file_operations radio_fops =
+{
+ .owner = THIS_MODULE,
+ .open = radio_open,
+ .read = radio_read,
+ .release = radio_release,
+ .unlocked_ioctl = video_ioctl2,
+ .poll = radio_poll,
+};
+
+static const struct v4l2_ioctl_ops radio_ioctl_ops = {
+ .vidioc_querycap = bttv_querycap,
+ .vidioc_log_status = bttv_log_status,
+ .vidioc_g_tuner = radio_g_tuner,
+ .vidioc_s_tuner = radio_s_tuner,
+ .vidioc_g_frequency = bttv_g_frequency,
+ .vidioc_s_frequency = bttv_s_frequency,
+ .vidioc_s_hw_freq_seek = radio_s_hw_freq_seek,
+ .vidioc_enum_freq_bands = radio_enum_freq_bands,
+ .vidioc_subscribe_event = v4l2_ctrl_subscribe_event,
+ .vidioc_unsubscribe_event = v4l2_event_unsubscribe,
+};
+
+static struct video_device radio_template = {
+ .fops = &radio_fops,
+ .ioctl_ops = &radio_ioctl_ops,
+};
+
+/* ----------------------------------------------------------------------- */
+/* some debug code */
+
+static int bttv_risc_decode(u32 risc)
+{
+ static char *instr[16] = {
+ [ BT848_RISC_WRITE >> 28 ] = "write",
+ [ BT848_RISC_SKIP >> 28 ] = "skip",
+ [ BT848_RISC_WRITEC >> 28 ] = "writec",
+ [ BT848_RISC_JUMP >> 28 ] = "jump",
+ [ BT848_RISC_SYNC >> 28 ] = "sync",
+ [ BT848_RISC_WRITE123 >> 28 ] = "write123",
+ [ BT848_RISC_SKIP123 >> 28 ] = "skip123",
+ [ BT848_RISC_WRITE1S23 >> 28 ] = "write1s23",
+ };
+ static int incr[16] = {
+ [ BT848_RISC_WRITE >> 28 ] = 2,
+ [ BT848_RISC_JUMP >> 28 ] = 2,
+ [ BT848_RISC_SYNC >> 28 ] = 2,
+ [ BT848_RISC_WRITE123 >> 28 ] = 5,
+ [ BT848_RISC_SKIP123 >> 28 ] = 2,
+ [ BT848_RISC_WRITE1S23 >> 28 ] = 3,
+ };
+ static char *bits[] = {
+ "be0", "be1", "be2", "be3/resync",
+ "set0", "set1", "set2", "set3",
+ "clr0", "clr1", "clr2", "clr3",
+ "irq", "res", "eol", "sol",
+ };
+ int i;
+
+ pr_cont("0x%08x [ %s", risc,
+ instr[risc >> 28] ? instr[risc >> 28] : "INVALID");
+ for (i = ARRAY_SIZE(bits)-1; i >= 0; i--)
+ if (risc & (1 << (i + 12)))
+ pr_cont(" %s", bits[i]);
+ pr_cont(" count=%d ]\n", risc & 0xfff);
+ return incr[risc >> 28] ? incr[risc >> 28] : 1;
+}
+
+static void bttv_risc_disasm(struct bttv *btv,
+ struct btcx_riscmem *risc)
+{
+ unsigned int i,j,n;
+
+ pr_info("%s: risc disasm: %p [dma=0x%08lx]\n",
+ btv->c.v4l2_dev.name, risc->cpu, (unsigned long)risc->dma);
+ for (i = 0; i < (risc->size >> 2); i += n) {
+ pr_info("%s: 0x%lx: ",
+ btv->c.v4l2_dev.name,
+ (unsigned long)(risc->dma + (i<<2)));
+ n = bttv_risc_decode(le32_to_cpu(risc->cpu[i]));
+ for (j = 1; j < n; j++)
+ pr_info("%s: 0x%lx: 0x%08x [ arg #%d ]\n",
+ btv->c.v4l2_dev.name,
+ (unsigned long)(risc->dma + ((i+j)<<2)),
+ risc->cpu[i+j], j);
+ if (0 == risc->cpu[i])
+ break;
+ }
+}
+
+static void bttv_print_riscaddr(struct bttv *btv)
+{
+ pr_info(" main: %08llx\n", (unsigned long long)btv->main.dma);
+ pr_info(" vbi : o=%08llx e=%08llx\n",
+ btv->cvbi ? (unsigned long long)btv->cvbi->top.dma : 0,
+ btv->cvbi ? (unsigned long long)btv->cvbi->bottom.dma : 0);
+ pr_info(" cap : o=%08llx e=%08llx\n",
+ btv->curr.top
+ ? (unsigned long long)btv->curr.top->top.dma : 0,
+ btv->curr.bottom
+ ? (unsigned long long)btv->curr.bottom->bottom.dma : 0);
+ pr_info(" scr : o=%08llx e=%08llx\n",
+ btv->screen ? (unsigned long long)btv->screen->top.dma : 0,
+ btv->screen ? (unsigned long long)btv->screen->bottom.dma : 0);
+ bttv_risc_disasm(btv, &btv->main);
+}
+
+/* ----------------------------------------------------------------------- */
+/* irq handler */
+
+static char *irq_name[] = {
+ "FMTCHG", // format change detected (525 vs. 625)
+ "VSYNC", // vertical sync (new field)
+ "HSYNC", // horizontal sync
+ "OFLOW", // chroma/luma AGC overflow
+ "HLOCK", // horizontal lock changed
+ "VPRES", // video presence changed
+ "6", "7",
+ "I2CDONE", // hw irc operation finished
+ "GPINT", // gpio port triggered irq
+ "10",
+ "RISCI", // risc instruction triggered irq
+ "FBUS", // pixel data fifo dropped data (high pci bus latencies)
+ "FTRGT", // pixel data fifo overrun
+ "FDSR", // fifo data stream resyncronisation
+ "PPERR", // parity error (data transfer)
+ "RIPERR", // parity error (read risc instructions)
+ "PABORT", // pci abort
+ "OCERR", // risc instruction error
+ "SCERR", // syncronisation error
+};
+
+static void bttv_print_irqbits(u32 print, u32 mark)
+{
+ unsigned int i;
+
+ pr_cont("bits:");
+ for (i = 0; i < ARRAY_SIZE(irq_name); i++) {
+ if (print & (1 << i))
+ pr_cont(" %s", irq_name[i]);
+ if (mark & (1 << i))
+ pr_cont("*");
+ }
+}
+
+static void bttv_irq_debug_low_latency(struct bttv *btv, u32 rc)
+{
+ pr_warn("%d: irq: skipped frame [main=%lx,o_vbi=%lx,o_field=%lx,rc=%lx]\n",
+ btv->c.nr,
+ (unsigned long)btv->main.dma,
+ (unsigned long)le32_to_cpu(btv->main.cpu[RISC_SLOT_O_VBI+1]),
+ (unsigned long)le32_to_cpu(btv->main.cpu[RISC_SLOT_O_FIELD+1]),
+ (unsigned long)rc);
+
+ if (0 == (btread(BT848_DSTATUS) & BT848_DSTATUS_HLOC)) {
+ pr_notice("%d: Oh, there (temporarily?) is no input signal. Ok, then this is harmless, don't worry ;)\n",
+ btv->c.nr);
+ return;
+ }
+ pr_notice("%d: Uhm. Looks like we have unusual high IRQ latencies\n",
+ btv->c.nr);
+ pr_notice("%d: Lets try to catch the culprit red-handed ...\n",
+ btv->c.nr);
+ dump_stack();
+}
+
+static int
+bttv_irq_next_video(struct bttv *btv, struct bttv_buffer_set *set)
+{
+ struct bttv_buffer *item;
+
+ memset(set,0,sizeof(*set));
+
+ /* capture request ? */
+ if (!list_empty(&btv->capture)) {
+ set->frame_irq = 1;
+ item = list_entry(btv->capture.next, struct bttv_buffer, vb.queue);
+ if (V4L2_FIELD_HAS_TOP(item->vb.field))
+ set->top = item;
+ if (V4L2_FIELD_HAS_BOTTOM(item->vb.field))
+ set->bottom = item;
+
+ /* capture request for other field ? */
+ if (!V4L2_FIELD_HAS_BOTH(item->vb.field) &&
+ (item->vb.queue.next != &btv->capture)) {
+ item = list_entry(item->vb.queue.next, struct bttv_buffer, vb.queue);
+ /* Mike Isely <isely@pobox.com> - Only check
+ * and set up the bottom field in the logic
+ * below. Don't ever do the top field. This
+ * of course means that if we set up the
+ * bottom field in the above code that we'll
+ * actually skip a field. But that's OK.
+ * Having processed only a single buffer this
+ * time, then the next time around the first
+ * available buffer should be for a top field.
+ * That will then cause us here to set up a
+ * top then a bottom field in the normal way.
+ * The alternative to this understanding is
+ * that we set up the second available buffer
+ * as a top field, but that's out of order
+ * since this driver always processes the top
+ * field first - the effect will be the two
+ * buffers being returned in the wrong order,
+ * with the second buffer also being delayed
+ * by one field time (owing to the fifo nature
+ * of videobuf). Worse still, we'll be stuck
+ * doing fields out of order now every time
+ * until something else causes a field to be
+ * dropped. By effectively forcing a field to
+ * drop this way then we always get back into
+ * sync within a single frame time. (Out of
+ * order fields can screw up deinterlacing
+ * algorithms.) */
+ if (!V4L2_FIELD_HAS_BOTH(item->vb.field)) {
+ if (NULL == set->bottom &&
+ V4L2_FIELD_BOTTOM == item->vb.field) {
+ set->bottom = item;
+ }
+ if (NULL != set->top && NULL != set->bottom)
+ set->top_irq = 2;
+ }
+ }
+ }
+
+ /* screen overlay ? */
+ if (NULL != btv->screen) {
+ if (V4L2_FIELD_HAS_BOTH(btv->screen->vb.field)) {
+ if (NULL == set->top && NULL == set->bottom) {
+ set->top = btv->screen;
+ set->bottom = btv->screen;
+ }
+ } else {
+ if (V4L2_FIELD_TOP == btv->screen->vb.field &&
+ NULL == set->top) {
+ set->top = btv->screen;
+ }
+ if (V4L2_FIELD_BOTTOM == btv->screen->vb.field &&
+ NULL == set->bottom) {
+ set->bottom = btv->screen;
+ }
+ }
+ }
+
+ dprintk("%d: next set: top=%p bottom=%p [screen=%p,irq=%d,%d]\n",
+ btv->c.nr, set->top, set->bottom,
+ btv->screen, set->frame_irq, set->top_irq);
+ return 0;
+}
+
+static void
+bttv_irq_wakeup_video(struct bttv *btv, struct bttv_buffer_set *wakeup,
+ struct bttv_buffer_set *curr, unsigned int state)
+{
+ u64 ts = ktime_get_ns();
+
+ if (wakeup->top == wakeup->bottom) {
+ if (NULL != wakeup->top && curr->top != wakeup->top) {
+ if (irq_debug > 1)
+ pr_debug("%d: wakeup: both=%p\n",
+ btv->c.nr, wakeup->top);
+ wakeup->top->vb.ts = ts;
+ wakeup->top->vb.field_count = btv->field_count;
+ wakeup->top->vb.state = state;
+ wake_up(&wakeup->top->vb.done);
+ }
+ } else {
+ if (NULL != wakeup->top && curr->top != wakeup->top) {
+ if (irq_debug > 1)
+ pr_debug("%d: wakeup: top=%p\n",
+ btv->c.nr, wakeup->top);
+ wakeup->top->vb.ts = ts;
+ wakeup->top->vb.field_count = btv->field_count;
+ wakeup->top->vb.state = state;
+ wake_up(&wakeup->top->vb.done);
+ }
+ if (NULL != wakeup->bottom && curr->bottom != wakeup->bottom) {
+ if (irq_debug > 1)
+ pr_debug("%d: wakeup: bottom=%p\n",
+ btv->c.nr, wakeup->bottom);
+ wakeup->bottom->vb.ts = ts;
+ wakeup->bottom->vb.field_count = btv->field_count;
+ wakeup->bottom->vb.state = state;
+ wake_up(&wakeup->bottom->vb.done);
+ }
+ }
+}
+
+static void
+bttv_irq_wakeup_vbi(struct bttv *btv, struct bttv_buffer *wakeup,
+ unsigned int state)
+{
+ if (NULL == wakeup)
+ return;
+
+ wakeup->vb.ts = ktime_get_ns();
+ wakeup->vb.field_count = btv->field_count;
+ wakeup->vb.state = state;
+ wake_up(&wakeup->vb.done);
+}
+
+static void bttv_irq_timeout(struct timer_list *t)
+{
+ struct bttv *btv = from_timer(btv, t, timeout);
+ struct bttv_buffer_set old,new;
+ struct bttv_buffer *ovbi;
+ struct bttv_buffer *item;
+ unsigned long flags;
+
+ if (bttv_verbose) {
+ pr_info("%d: timeout: drop=%d irq=%d/%d, risc=%08x, ",
+ btv->c.nr, btv->framedrop, btv->irq_me, btv->irq_total,
+ btread(BT848_RISC_COUNT));
+ bttv_print_irqbits(btread(BT848_INT_STAT),0);
+ pr_cont("\n");
+ }
+
+ spin_lock_irqsave(&btv->s_lock,flags);
+
+ /* deactivate stuff */
+ memset(&new,0,sizeof(new));
+ old = btv->curr;
+ ovbi = btv->cvbi;
+ btv->curr = new;
+ btv->cvbi = NULL;
+ btv->loop_irq = 0;
+ bttv_buffer_activate_video(btv, &new);
+ bttv_buffer_activate_vbi(btv, NULL);
+ bttv_set_dma(btv, 0);
+
+ /* wake up */
+ bttv_irq_wakeup_video(btv, &old, &new, VIDEOBUF_ERROR);
+ bttv_irq_wakeup_vbi(btv, ovbi, VIDEOBUF_ERROR);
+
+ /* cancel all outstanding capture / vbi requests */
+ while (!list_empty(&btv->capture)) {
+ item = list_entry(btv->capture.next, struct bttv_buffer, vb.queue);
+ list_del(&item->vb.queue);
+ item->vb.state = VIDEOBUF_ERROR;
+ wake_up(&item->vb.done);
+ }
+ while (!list_empty(&btv->vcapture)) {
+ item = list_entry(btv->vcapture.next, struct bttv_buffer, vb.queue);
+ list_del(&item->vb.queue);
+ item->vb.state = VIDEOBUF_ERROR;
+ wake_up(&item->vb.done);
+ }
+
+ btv->errors++;
+ spin_unlock_irqrestore(&btv->s_lock,flags);
+}
+
+static void
+bttv_irq_wakeup_top(struct bttv *btv)
+{
+ struct bttv_buffer *wakeup = btv->curr.top;
+
+ if (NULL == wakeup)
+ return;
+
+ spin_lock(&btv->s_lock);
+ btv->curr.top_irq = 0;
+ btv->curr.top = NULL;
+ bttv_risc_hook(btv, RISC_SLOT_O_FIELD, NULL, 0);
+
+ wakeup->vb.ts = ktime_get_ns();
+ wakeup->vb.field_count = btv->field_count;
+ wakeup->vb.state = VIDEOBUF_DONE;
+ wake_up(&wakeup->vb.done);
+ spin_unlock(&btv->s_lock);
+}
+
+static inline int is_active(struct btcx_riscmem *risc, u32 rc)
+{
+ if (rc < risc->dma)
+ return 0;
+ if (rc > risc->dma + risc->size)
+ return 0;
+ return 1;
+}
+
+static void
+bttv_irq_switch_video(struct bttv *btv)
+{
+ struct bttv_buffer_set new;
+ struct bttv_buffer_set old;
+ dma_addr_t rc;
+
+ spin_lock(&btv->s_lock);
+
+ /* new buffer set */
+ bttv_irq_next_video(btv, &new);
+ rc = btread(BT848_RISC_COUNT);
+ if ((btv->curr.top && is_active(&btv->curr.top->top, rc)) ||
+ (btv->curr.bottom && is_active(&btv->curr.bottom->bottom, rc))) {
+ btv->framedrop++;
+ if (debug_latency)
+ bttv_irq_debug_low_latency(btv, rc);
+ spin_unlock(&btv->s_lock);
+ return;
+ }
+
+ /* switch over */
+ old = btv->curr;
+ btv->curr = new;
+ btv->loop_irq &= ~1;
+ bttv_buffer_activate_video(btv, &new);
+ bttv_set_dma(btv, 0);
+
+ /* switch input */
+ if (UNSET != btv->new_input) {
+ video_mux(btv,btv->new_input);
+ btv->new_input = UNSET;
+ }
+
+ /* wake up finished buffers */
+ bttv_irq_wakeup_video(btv, &old, &new, VIDEOBUF_DONE);
+ spin_unlock(&btv->s_lock);
+}
+
+static void
+bttv_irq_switch_vbi(struct bttv *btv)
+{
+ struct bttv_buffer *new = NULL;
+ struct bttv_buffer *old;
+ u32 rc;
+
+ spin_lock(&btv->s_lock);
+
+ if (!list_empty(&btv->vcapture))
+ new = list_entry(btv->vcapture.next, struct bttv_buffer, vb.queue);
+ old = btv->cvbi;
+
+ rc = btread(BT848_RISC_COUNT);
+ if (NULL != old && (is_active(&old->top, rc) ||
+ is_active(&old->bottom, rc))) {
+ btv->framedrop++;
+ if (debug_latency)
+ bttv_irq_debug_low_latency(btv, rc);
+ spin_unlock(&btv->s_lock);
+ return;
+ }
+
+ /* switch */
+ btv->cvbi = new;
+ btv->loop_irq &= ~4;
+ bttv_buffer_activate_vbi(btv, new);
+ bttv_set_dma(btv, 0);
+
+ bttv_irq_wakeup_vbi(btv, old, VIDEOBUF_DONE);
+ spin_unlock(&btv->s_lock);
+}
+
+static irqreturn_t bttv_irq(int irq, void *dev_id)
+{
+ u32 stat,astat;
+ u32 dstat;
+ int count;
+ struct bttv *btv;
+ int handled = 0;
+
+ btv=(struct bttv *)dev_id;
+
+ count=0;
+ while (1) {
+ /* get/clear interrupt status bits */
+ stat=btread(BT848_INT_STAT);
+ astat=stat&btread(BT848_INT_MASK);
+ if (!astat)
+ break;
+ handled = 1;
+ btwrite(stat,BT848_INT_STAT);
+
+ /* get device status bits */
+ dstat=btread(BT848_DSTATUS);
+
+ if (irq_debug) {
+ pr_debug("%d: irq loop=%d fc=%d riscs=%x, riscc=%08x, ",
+ btv->c.nr, count, btv->field_count,
+ stat>>28, btread(BT848_RISC_COUNT));
+ bttv_print_irqbits(stat,astat);
+ if (stat & BT848_INT_HLOCK)
+ pr_cont(" HLOC => %s",
+ dstat & BT848_DSTATUS_HLOC
+ ? "yes" : "no");
+ if (stat & BT848_INT_VPRES)
+ pr_cont(" PRES => %s",
+ dstat & BT848_DSTATUS_PRES
+ ? "yes" : "no");
+ if (stat & BT848_INT_FMTCHG)
+ pr_cont(" NUML => %s",
+ dstat & BT848_DSTATUS_NUML
+ ? "625" : "525");
+ pr_cont("\n");
+ }
+
+ if (astat&BT848_INT_VSYNC)
+ btv->field_count++;
+
+ if ((astat & BT848_INT_GPINT) && btv->remote) {
+ bttv_input_irq(btv);
+ }
+
+ if (astat & BT848_INT_I2CDONE) {
+ btv->i2c_done = stat;
+ wake_up(&btv->i2c_queue);
+ }
+
+ if ((astat & BT848_INT_RISCI) && (stat & (4<<28)))
+ bttv_irq_switch_vbi(btv);
+
+ if ((astat & BT848_INT_RISCI) && (stat & (2<<28)))
+ bttv_irq_wakeup_top(btv);
+
+ if ((astat & BT848_INT_RISCI) && (stat & (1<<28)))
+ bttv_irq_switch_video(btv);
+
+ if ((astat & BT848_INT_HLOCK) && btv->opt_automute)
+ /* trigger automute */
+ audio_mux_gpio(btv, btv->audio_input, btv->mute);
+
+ if (astat & (BT848_INT_SCERR|BT848_INT_OCERR)) {
+ pr_info("%d: %s%s @ %08x,",
+ btv->c.nr,
+ (astat & BT848_INT_SCERR) ? "SCERR" : "",
+ (astat & BT848_INT_OCERR) ? "OCERR" : "",
+ btread(BT848_RISC_COUNT));
+ bttv_print_irqbits(stat,astat);
+ pr_cont("\n");
+ if (bttv_debug)
+ bttv_print_riscaddr(btv);
+ }
+ if (fdsr && astat & BT848_INT_FDSR) {
+ pr_info("%d: FDSR @ %08x\n",
+ btv->c.nr, btread(BT848_RISC_COUNT));
+ if (bttv_debug)
+ bttv_print_riscaddr(btv);
+ }
+
+ count++;
+ if (count > 4) {
+
+ if (count > 8 || !(astat & BT848_INT_GPINT)) {
+ btwrite(0, BT848_INT_MASK);
+
+ pr_err("%d: IRQ lockup, cleared int mask [",
+ btv->c.nr);
+ } else {
+ pr_err("%d: IRQ lockup, clearing GPINT from int mask [",
+ btv->c.nr);
+
+ btwrite(btread(BT848_INT_MASK) & (-1 ^ BT848_INT_GPINT),
+ BT848_INT_MASK);
+ }
+
+ bttv_print_irqbits(stat,astat);
+
+ pr_cont("]\n");
+ }
+ }
+ btv->irq_total++;
+ if (handled)
+ btv->irq_me++;
+ return IRQ_RETVAL(handled);
+}
+
+
+/* ----------------------------------------------------------------------- */
+/* initialization */
+
+static void vdev_init(struct bttv *btv,
+ struct video_device *vfd,
+ const struct video_device *template,
+ const char *type_name)
+{
+ *vfd = *template;
+ vfd->v4l2_dev = &btv->c.v4l2_dev;
+ vfd->release = video_device_release_empty;
+ video_set_drvdata(vfd, btv);
+ snprintf(vfd->name, sizeof(vfd->name), "BT%d%s %s (%s)",
+ btv->id, (btv->id==848 && btv->revision==0x12) ? "A" : "",
+ type_name, bttv_tvcards[btv->c.type].name);
+ if (btv->tuner_type == TUNER_ABSENT) {
+ v4l2_disable_ioctl(vfd, VIDIOC_G_FREQUENCY);
+ v4l2_disable_ioctl(vfd, VIDIOC_S_FREQUENCY);
+ v4l2_disable_ioctl(vfd, VIDIOC_G_TUNER);
+ v4l2_disable_ioctl(vfd, VIDIOC_S_TUNER);
+ }
+}
+
+static void bttv_unregister_video(struct bttv *btv)
+{
+ video_unregister_device(&btv->video_dev);
+ video_unregister_device(&btv->vbi_dev);
+ video_unregister_device(&btv->radio_dev);
+}
+
+/* register video4linux devices */
+static int bttv_register_video(struct bttv *btv)
+{
+ if (no_overlay > 0)
+ pr_notice("Overlay support disabled\n");
+
+ /* video */
+ vdev_init(btv, &btv->video_dev, &bttv_video_template, "video");
+ btv->video_dev.device_caps = V4L2_CAP_VIDEO_CAPTURE |
+ V4L2_CAP_READWRITE | V4L2_CAP_STREAMING;
+ if (btv->tuner_type != TUNER_ABSENT)
+ btv->video_dev.device_caps |= V4L2_CAP_TUNER;
+ if (no_overlay <= 0)
+ btv->video_dev.device_caps |= V4L2_CAP_VIDEO_OVERLAY;
+
+ if (video_register_device(&btv->video_dev, VFL_TYPE_VIDEO,
+ video_nr[btv->c.nr]) < 0)
+ goto err;
+ pr_info("%d: registered device %s\n",
+ btv->c.nr, video_device_node_name(&btv->video_dev));
+ if (device_create_file(&btv->video_dev.dev,
+ &dev_attr_card)<0) {
+ pr_err("%d: device_create_file 'card' failed\n", btv->c.nr);
+ goto err;
+ }
+
+ /* vbi */
+ vdev_init(btv, &btv->vbi_dev, &bttv_video_template, "vbi");
+ btv->vbi_dev.device_caps = V4L2_CAP_VBI_CAPTURE | V4L2_CAP_READWRITE |
+ V4L2_CAP_STREAMING;
+ if (btv->tuner_type != TUNER_ABSENT)
+ btv->vbi_dev.device_caps |= V4L2_CAP_TUNER;
+
+ if (video_register_device(&btv->vbi_dev, VFL_TYPE_VBI,
+ vbi_nr[btv->c.nr]) < 0)
+ goto err;
+ pr_info("%d: registered device %s\n",
+ btv->c.nr, video_device_node_name(&btv->vbi_dev));
+
+ if (!btv->has_radio)
+ return 0;
+ /* radio */
+ vdev_init(btv, &btv->radio_dev, &radio_template, "radio");
+ btv->radio_dev.device_caps = V4L2_CAP_RADIO | V4L2_CAP_TUNER;
+ if (btv->has_saa6588)
+ btv->radio_dev.device_caps |= V4L2_CAP_READWRITE |
+ V4L2_CAP_RDS_CAPTURE;
+ if (btv->has_tea575x)
+ btv->radio_dev.device_caps |= V4L2_CAP_HW_FREQ_SEEK;
+ btv->radio_dev.ctrl_handler = &btv->radio_ctrl_handler;
+ if (video_register_device(&btv->radio_dev, VFL_TYPE_RADIO,
+ radio_nr[btv->c.nr]) < 0)
+ goto err;
+ pr_info("%d: registered device %s\n",
+ btv->c.nr, video_device_node_name(&btv->radio_dev));
+
+ /* all done */
+ return 0;
+
+ err:
+ bttv_unregister_video(btv);
+ return -1;
+}
+
+
+/* on OpenFirmware machines (PowerMac at least), PCI memory cycle */
+/* response on cards with no firmware is not enabled by OF */
+static void pci_set_command(struct pci_dev *dev)
+{
+#if defined(__powerpc__)
+ unsigned int cmd;
+
+ pci_read_config_dword(dev, PCI_COMMAND, &cmd);
+ cmd = (cmd | PCI_COMMAND_MEMORY );
+ pci_write_config_dword(dev, PCI_COMMAND, cmd);
+#endif
+}
+
+static int bttv_probe(struct pci_dev *dev, const struct pci_device_id *pci_id)
+{
+ struct v4l2_frequency init_freq = {
+ .tuner = 0,
+ .type = V4L2_TUNER_ANALOG_TV,
+ .frequency = 980,
+ };
+ int result;
+ unsigned char lat;
+ struct bttv *btv;
+ struct v4l2_ctrl_handler *hdl;
+
+ if (bttv_num == BTTV_MAX)
+ return -ENOMEM;
+ pr_info("Bt8xx card found (%d)\n", bttv_num);
+ bttvs[bttv_num] = btv = kzalloc(sizeof(*btv), GFP_KERNEL);
+ if (btv == NULL) {
+ pr_err("out of memory\n");
+ return -ENOMEM;
+ }
+ btv->c.nr = bttv_num;
+ snprintf(btv->c.v4l2_dev.name, sizeof(btv->c.v4l2_dev.name),
+ "bttv%d", btv->c.nr);
+
+ /* initialize structs / fill in defaults */
+ mutex_init(&btv->lock);
+ spin_lock_init(&btv->s_lock);
+ spin_lock_init(&btv->gpio_lock);
+ init_waitqueue_head(&btv->i2c_queue);
+ INIT_LIST_HEAD(&btv->c.subs);
+ INIT_LIST_HEAD(&btv->capture);
+ INIT_LIST_HEAD(&btv->vcapture);
+
+ timer_setup(&btv->timeout, bttv_irq_timeout, 0);
+
+ btv->i2c_rc = -1;
+ btv->tuner_type = UNSET;
+ btv->new_input = UNSET;
+ btv->has_radio=radio[btv->c.nr];
+
+ /* pci stuff (init, get irq/mmio, ... */
+ btv->c.pci = dev;
+ btv->id = dev->device;
+ if (pci_enable_device(dev)) {
+ pr_warn("%d: Can't enable device\n", btv->c.nr);
+ result = -EIO;
+ goto free_mem;
+ }
+ if (dma_set_mask(&dev->dev, DMA_BIT_MASK(32))) {
+ pr_warn("%d: No suitable DMA available\n", btv->c.nr);
+ result = -EIO;
+ goto free_mem;
+ }
+ if (!request_mem_region(pci_resource_start(dev,0),
+ pci_resource_len(dev,0),
+ btv->c.v4l2_dev.name)) {
+ pr_warn("%d: can't request iomem (0x%llx)\n",
+ btv->c.nr,
+ (unsigned long long)pci_resource_start(dev, 0));
+ result = -EBUSY;
+ goto free_mem;
+ }
+ pci_set_master(dev);
+ pci_set_command(dev);
+
+ result = v4l2_device_register(&dev->dev, &btv->c.v4l2_dev);
+ if (result < 0) {
+ pr_warn("%d: v4l2_device_register() failed\n", btv->c.nr);
+ goto fail0;
+ }
+ hdl = &btv->ctrl_handler;
+ v4l2_ctrl_handler_init(hdl, 20);
+ btv->c.v4l2_dev.ctrl_handler = hdl;
+ v4l2_ctrl_handler_init(&btv->radio_ctrl_handler, 6);
+
+ btv->revision = dev->revision;
+ pci_read_config_byte(dev, PCI_LATENCY_TIMER, &lat);
+ pr_info("%d: Bt%d (rev %d) at %s, irq: %d, latency: %d, mmio: 0x%llx\n",
+ bttv_num, btv->id, btv->revision, pci_name(dev),
+ btv->c.pci->irq, lat,
+ (unsigned long long)pci_resource_start(dev, 0));
+ schedule();
+
+ btv->bt848_mmio = ioremap(pci_resource_start(dev, 0), 0x1000);
+ if (NULL == btv->bt848_mmio) {
+ pr_err("%d: ioremap() failed\n", btv->c.nr);
+ result = -EIO;
+ goto fail1;
+ }
+
+ /* identify card */
+ bttv_idcard(btv);
+
+ /* disable irqs, register irq handler */
+ btwrite(0, BT848_INT_MASK);
+ result = request_irq(btv->c.pci->irq, bttv_irq,
+ IRQF_SHARED, btv->c.v4l2_dev.name, (void *)btv);
+ if (result < 0) {
+ pr_err("%d: can't get IRQ %d\n",
+ bttv_num, btv->c.pci->irq);
+ goto fail1;
+ }
+
+ if (0 != bttv_handle_chipset(btv)) {
+ result = -EIO;
+ goto fail2;
+ }
+
+ /* init options from insmod args */
+ btv->opt_combfilter = combfilter;
+ bttv_ctrl_combfilter.def = combfilter;
+ bttv_ctrl_lumafilter.def = lumafilter;
+ btv->opt_automute = automute;
+ bttv_ctrl_automute.def = automute;
+ bttv_ctrl_agc_crush.def = agc_crush;
+ btv->opt_vcr_hack = vcr_hack;
+ bttv_ctrl_vcr_hack.def = vcr_hack;
+ bttv_ctrl_whitecrush_upper.def = whitecrush_upper;
+ bttv_ctrl_whitecrush_lower.def = whitecrush_lower;
+ btv->opt_uv_ratio = uv_ratio;
+ bttv_ctrl_uv_ratio.def = uv_ratio;
+ bttv_ctrl_full_luma.def = full_luma_range;
+ bttv_ctrl_coring.def = coring;
+
+ /* fill struct bttv with some useful defaults */
+ btv->init.btv = btv;
+ btv->init.ov.w.width = 320;
+ btv->init.ov.w.height = 240;
+ btv->init.fmt = format_by_fourcc(V4L2_PIX_FMT_BGR24);
+ btv->init.width = 320;
+ btv->init.height = 240;
+ btv->init.ov.w.width = 320;
+ btv->init.ov.w.height = 240;
+ btv->init.ov.field = V4L2_FIELD_INTERLACED;
+ btv->input = 0;
+
+ v4l2_ctrl_new_std(hdl, &bttv_ctrl_ops,
+ V4L2_CID_BRIGHTNESS, 0, 0xff00, 0x100, 32768);
+ v4l2_ctrl_new_std(hdl, &bttv_ctrl_ops,
+ V4L2_CID_CONTRAST, 0, 0xff80, 0x80, 0x6c00);
+ v4l2_ctrl_new_std(hdl, &bttv_ctrl_ops,
+ V4L2_CID_SATURATION, 0, 0xff80, 0x80, 32768);
+ v4l2_ctrl_new_std(hdl, &bttv_ctrl_ops,
+ V4L2_CID_COLOR_KILLER, 0, 1, 1, 0);
+ v4l2_ctrl_new_std(hdl, &bttv_ctrl_ops,
+ V4L2_CID_HUE, 0, 0xff00, 0x100, 32768);
+ v4l2_ctrl_new_std(hdl, &bttv_ctrl_ops,
+ V4L2_CID_CHROMA_AGC, 0, 1, 1, !!chroma_agc);
+ v4l2_ctrl_new_std(hdl, &bttv_ctrl_ops,
+ V4L2_CID_AUDIO_MUTE, 0, 1, 1, 0);
+ if (btv->volume_gpio)
+ v4l2_ctrl_new_std(hdl, &bttv_ctrl_ops,
+ V4L2_CID_AUDIO_VOLUME, 0, 0xff00, 0x100, 0xff00);
+ v4l2_ctrl_new_custom(hdl, &bttv_ctrl_combfilter, NULL);
+ v4l2_ctrl_new_custom(hdl, &bttv_ctrl_automute, NULL);
+ v4l2_ctrl_new_custom(hdl, &bttv_ctrl_lumafilter, NULL);
+ v4l2_ctrl_new_custom(hdl, &bttv_ctrl_agc_crush, NULL);
+ v4l2_ctrl_new_custom(hdl, &bttv_ctrl_vcr_hack, NULL);
+ v4l2_ctrl_new_custom(hdl, &bttv_ctrl_whitecrush_lower, NULL);
+ v4l2_ctrl_new_custom(hdl, &bttv_ctrl_whitecrush_upper, NULL);
+ v4l2_ctrl_new_custom(hdl, &bttv_ctrl_uv_ratio, NULL);
+ v4l2_ctrl_new_custom(hdl, &bttv_ctrl_full_luma, NULL);
+ v4l2_ctrl_new_custom(hdl, &bttv_ctrl_coring, NULL);
+
+ /* initialize hardware */
+ if (bttv_gpio)
+ bttv_gpio_tracking(btv,"pre-init");
+
+ bttv_risc_init_main(btv);
+ init_bt848(btv);
+
+ /* gpio */
+ btwrite(0x00, BT848_GPIO_REG_INP);
+ btwrite(0x00, BT848_GPIO_OUT_EN);
+ if (bttv_verbose)
+ bttv_gpio_tracking(btv,"init");
+
+ /* needs to be done before i2c is registered */
+ bttv_init_card1(btv);
+
+ /* register i2c + gpio */
+ init_bttv_i2c(btv);
+
+ /* some card-specific stuff (needs working i2c) */
+ bttv_init_card2(btv);
+ bttv_init_tuner(btv);
+ if (btv->tuner_type != TUNER_ABSENT) {
+ bttv_set_frequency(btv, &init_freq);
+ btv->radio_freq = 90500 * 16; /* 90.5Mhz default */
+ }
+ btv->std = V4L2_STD_PAL;
+ init_irqreg(btv);
+ if (!bttv_tvcards[btv->c.type].no_video)
+ v4l2_ctrl_handler_setup(hdl);
+ if (hdl->error) {
+ result = hdl->error;
+ goto fail2;
+ }
+ /* mute device */
+ audio_mute(btv, 1);
+
+ /* register video4linux + input */
+ if (!bttv_tvcards[btv->c.type].no_video) {
+ v4l2_ctrl_add_handler(&btv->radio_ctrl_handler, hdl,
+ v4l2_ctrl_radio_filter, false);
+ if (btv->radio_ctrl_handler.error) {
+ result = btv->radio_ctrl_handler.error;
+ goto fail2;
+ }
+ set_input(btv, 0, btv->tvnorm);
+ bttv_crop_reset(&btv->crop[0], btv->tvnorm);
+ btv->crop[1] = btv->crop[0]; /* current = default */
+ disclaim_vbi_lines(btv);
+ disclaim_video_lines(btv);
+ bttv_register_video(btv);
+ }
+
+ /* add subdevices and autoload dvb-bt8xx if needed */
+ if (bttv_tvcards[btv->c.type].has_dvb) {
+ bttv_sub_add_device(&btv->c, "dvb");
+ request_modules(btv);
+ }
+
+ if (!disable_ir) {
+ init_bttv_i2c_ir(btv);
+ bttv_input_init(btv);
+ }
+
+ /* everything is fine */
+ bttv_num++;
+ return 0;
+
+fail2:
+ free_irq(btv->c.pci->irq,btv);
+
+fail1:
+ v4l2_ctrl_handler_free(&btv->ctrl_handler);
+ v4l2_ctrl_handler_free(&btv->radio_ctrl_handler);
+ v4l2_device_unregister(&btv->c.v4l2_dev);
+
+fail0:
+ if (btv->bt848_mmio)
+ iounmap(btv->bt848_mmio);
+ release_mem_region(pci_resource_start(btv->c.pci,0),
+ pci_resource_len(btv->c.pci,0));
+ pci_disable_device(btv->c.pci);
+
+free_mem:
+ bttvs[btv->c.nr] = NULL;
+ kfree(btv);
+ return result;
+}
+
+static void bttv_remove(struct pci_dev *pci_dev)
+{
+ struct v4l2_device *v4l2_dev = pci_get_drvdata(pci_dev);
+ struct bttv *btv = to_bttv(v4l2_dev);
+
+ if (bttv_verbose)
+ pr_info("%d: unloading\n", btv->c.nr);
+
+ if (bttv_tvcards[btv->c.type].has_dvb)
+ flush_request_modules(btv);
+
+ /* shutdown everything (DMA+IRQs) */
+ btand(~15, BT848_GPIO_DMA_CTL);
+ btwrite(0, BT848_INT_MASK);
+ btwrite(~0x0, BT848_INT_STAT);
+ btwrite(0x0, BT848_GPIO_OUT_EN);
+ if (bttv_gpio)
+ bttv_gpio_tracking(btv,"cleanup");
+
+ /* tell gpio modules we are leaving ... */
+ btv->shutdown=1;
+ bttv_input_fini(btv);
+ bttv_sub_del_devices(&btv->c);
+
+ /* unregister i2c_bus + input */
+ fini_bttv_i2c(btv);
+
+ /* unregister video4linux */
+ bttv_unregister_video(btv);
+
+ /* free allocated memory */
+ v4l2_ctrl_handler_free(&btv->ctrl_handler);
+ v4l2_ctrl_handler_free(&btv->radio_ctrl_handler);
+ btcx_riscmem_free(btv->c.pci,&btv->main);
+
+ /* free resources */
+ free_irq(btv->c.pci->irq,btv);
+ del_timer_sync(&btv->timeout);
+ iounmap(btv->bt848_mmio);
+ release_mem_region(pci_resource_start(btv->c.pci,0),
+ pci_resource_len(btv->c.pci,0));
+ pci_disable_device(btv->c.pci);
+
+ v4l2_device_unregister(&btv->c.v4l2_dev);
+ bttvs[btv->c.nr] = NULL;
+ kfree(btv);
+
+ return;
+}
+
+static int __maybe_unused bttv_suspend(struct device *dev)
+{
+ struct v4l2_device *v4l2_dev = dev_get_drvdata(dev);
+ struct bttv *btv = to_bttv(v4l2_dev);
+ struct bttv_buffer_set idle;
+ unsigned long flags;
+
+ dprintk("%d: suspend\n", btv->c.nr);
+
+ /* 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();
+
+ btv->state.disabled = 1;
+ return 0;
+}
+
+static int __maybe_unused bttv_resume(struct device *dev)
+{
+ struct v4l2_device *v4l2_dev = dev_get_drvdata(dev);
+ struct bttv *btv = to_bttv(v4l2_dev);
+ unsigned long flags;
+
+ dprintk("%d: resume\n", btv->c.nr);
+
+ btv->state.disabled = 0;
+
+ /* 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 const struct pci_device_id bttv_pci_tbl[] = {
+ {PCI_VDEVICE(BROOKTREE, PCI_DEVICE_ID_BT848), 0},
+ {PCI_VDEVICE(BROOKTREE, PCI_DEVICE_ID_BT849), 0},
+ {PCI_VDEVICE(BROOKTREE, PCI_DEVICE_ID_BT878), 0},
+ {PCI_VDEVICE(BROOKTREE, PCI_DEVICE_ID_BT879), 0},
+ {PCI_VDEVICE(BROOKTREE, PCI_DEVICE_ID_FUSION879), 0},
+ {0,}
+};
+
+MODULE_DEVICE_TABLE(pci, bttv_pci_tbl);
+
+static SIMPLE_DEV_PM_OPS(bttv_pm_ops,
+ bttv_suspend,
+ bttv_resume);
+
+static struct pci_driver bttv_pci_driver = {
+ .name = "bttv",
+ .id_table = bttv_pci_tbl,
+ .probe = bttv_probe,
+ .remove = bttv_remove,
+ .driver.pm = &bttv_pm_ops,
+};
+
+static int __init bttv_init_module(void)
+{
+ int ret;
+
+ bttv_num = 0;
+
+ pr_info("driver version %s loaded\n", BTTV_VERSION);
+ if (gbuffers < 2 || gbuffers > VIDEO_MAX_FRAME)
+ gbuffers = 2;
+ if (gbufsize > BTTV_MAX_FBUF)
+ gbufsize = BTTV_MAX_FBUF;
+ gbufsize = (gbufsize + PAGE_SIZE - 1) & PAGE_MASK;
+ if (bttv_verbose)
+ pr_info("using %d buffers with %dk (%d pages) each for capture\n",
+ gbuffers, gbufsize >> 10, gbufsize >> PAGE_SHIFT);
+
+ bttv_check_chipset();
+
+ ret = bus_register(&bttv_sub_bus_type);
+ if (ret < 0) {
+ pr_warn("bus_register error: %d\n", ret);
+ return ret;
+ }
+ ret = pci_register_driver(&bttv_pci_driver);
+ if (ret < 0)
+ bus_unregister(&bttv_sub_bus_type);
+
+ return ret;
+}
+
+static void __exit bttv_cleanup_module(void)
+{
+ pci_unregister_driver(&bttv_pci_driver);
+ bus_unregister(&bttv_sub_bus_type);
+}
+
+module_init(bttv_init_module);
+module_exit(bttv_cleanup_module);
generated by cgit v1.2.3 (git 2.39.1) at 2024-12-22 09:11:47 +0000