524 lines
14 KiB
C
524 lines
14 KiB
C
/* SPDX-License-Identifier: GPL-2.0-or-later */
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/*
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bttv - Bt848 frame grabber driver
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bttv's *private* header file -- nobody other than bttv itself
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should ever include this file.
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(c) 2000-2002 Gerd Knorr <kraxel@bytesex.org>
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*/
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#ifndef _BTTVP_H_
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#define _BTTVP_H_
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#include <linux/types.h>
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#include <linux/wait.h>
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#include <linux/i2c.h>
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#include <linux/i2c-algo-bit.h>
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#include <linux/pci.h>
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#include <linux/input.h>
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#include <linux/mutex.h>
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#include <linux/scatterlist.h>
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#include <linux/device.h>
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#include <asm/io.h>
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#include <media/v4l2-common.h>
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#include <media/v4l2-ctrls.h>
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#include <media/v4l2-fh.h>
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#include <media/videobuf-dma-sg.h>
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#include <media/tveeprom.h>
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#include <media/rc-core.h>
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#include <media/i2c/ir-kbd-i2c.h>
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#include <media/drv-intf/tea575x.h>
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#include "bt848.h"
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#include "bttv.h"
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#include "btcx-risc.h"
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#ifdef __KERNEL__
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#define FORMAT_FLAGS_DITHER 0x01
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#define FORMAT_FLAGS_PACKED 0x02
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#define FORMAT_FLAGS_PLANAR 0x04
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#define FORMAT_FLAGS_RAW 0x08
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#define FORMAT_FLAGS_CrCb 0x10
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#define RISC_SLOT_O_VBI 4
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#define RISC_SLOT_O_FIELD 6
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#define RISC_SLOT_E_VBI 10
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#define RISC_SLOT_E_FIELD 12
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#define RISC_SLOT_LOOP 14
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#define RESOURCE_OVERLAY 1
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#define RESOURCE_VIDEO_STREAM 2
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#define RESOURCE_VBI 4
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#define RESOURCE_VIDEO_READ 8
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#define RAW_LINES 640
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#define RAW_BPL 1024
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#define UNSET (-1U)
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/* Min. value in VDELAY register. */
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#define MIN_VDELAY 2
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/* Even to get Cb first, odd for Cr. */
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#define MAX_HDELAY (0x3FF & -2)
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/* Limits scaled width, which must be a multiple of 4. */
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#define MAX_HACTIVE (0x3FF & -4)
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#define BTTV_NORMS (\
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V4L2_STD_PAL | V4L2_STD_PAL_N | \
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V4L2_STD_PAL_Nc | V4L2_STD_SECAM | \
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V4L2_STD_NTSC | V4L2_STD_PAL_M | \
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V4L2_STD_PAL_60)
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/* ---------------------------------------------------------- */
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struct bttv_tvnorm {
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int v4l2_id;
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char *name;
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u32 Fsc;
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u16 swidth, sheight; /* scaled standard width, height */
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u16 totalwidth;
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u8 adelay, bdelay, iform;
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u32 scaledtwidth;
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u16 hdelayx1, hactivex1;
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u16 vdelay;
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u8 vbipack;
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u16 vtotal;
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int sram;
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/* ITU-R frame line number of the first VBI line we can
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capture, of the first and second field. The last possible line
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is determined by cropcap.bounds. */
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u16 vbistart[2];
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/* Horizontally this counts fCLKx1 samples following the leading
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edge of the horizontal sync pulse, vertically ITU-R frame line
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numbers of the first field times two (2, 4, 6, ... 524 or 624). */
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struct v4l2_cropcap cropcap;
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};
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extern const struct bttv_tvnorm bttv_tvnorms[];
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struct bttv_format {
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int fourcc; /* video4linux 2 */
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int btformat; /* BT848_COLOR_FMT_* */
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int btswap; /* BT848_COLOR_CTL_* */
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int depth; /* bit/pixel */
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int flags;
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int hshift,vshift; /* for planar modes */
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};
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struct bttv_ir {
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struct rc_dev *dev;
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struct bttv *btv;
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struct timer_list timer;
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char name[32];
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char phys[32];
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/* Usual gpio signalling */
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u32 mask_keycode;
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u32 mask_keydown;
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u32 mask_keyup;
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u32 polling;
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u32 last_gpio;
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int shift_by;
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int rc5_remote_gap;
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/* RC5 gpio */
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bool rc5_gpio; /* Is RC5 legacy GPIO enabled? */
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u32 last_bit; /* last raw bit seen */
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u32 code; /* raw code under construction */
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ktime_t base_time; /* time of last seen code */
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bool active; /* building raw code */
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};
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/* ---------------------------------------------------------- */
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struct bttv_geometry {
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u8 vtc,crop,comb;
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u16 width,hscale,hdelay;
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u16 sheight,vscale,vdelay,vtotal;
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};
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struct bttv_buffer {
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/* common v4l buffer stuff -- must be first */
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struct videobuf_buffer vb;
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/* bttv specific */
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const struct bttv_format *fmt;
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unsigned int tvnorm;
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int btformat;
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int btswap;
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struct bttv_geometry geo;
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struct btcx_riscmem top;
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struct btcx_riscmem bottom;
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struct v4l2_rect crop;
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unsigned int vbi_skip[2];
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unsigned int vbi_count[2];
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};
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struct bttv_buffer_set {
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struct bttv_buffer *top; /* top field buffer */
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struct bttv_buffer *bottom; /* bottom field buffer */
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unsigned int top_irq;
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unsigned int frame_irq;
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};
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struct bttv_overlay {
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unsigned int tvnorm;
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struct v4l2_rect w;
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enum v4l2_field field;
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struct v4l2_clip *clips;
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int nclips;
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int setup_ok;
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};
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struct bttv_vbi_fmt {
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struct v4l2_vbi_format fmt;
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/* fmt.start[] and count[] refer to this video standard. */
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const struct bttv_tvnorm *tvnorm;
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/* Earliest possible start of video capturing with this
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v4l2_vbi_format, in struct bttv_crop.rect units. */
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__s32 end;
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};
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/* bttv-vbi.c */
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void bttv_vbi_fmt_reset(struct bttv_vbi_fmt *f, unsigned int norm);
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struct bttv_crop {
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/* A cropping rectangle in struct bttv_tvnorm.cropcap units. */
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struct v4l2_rect rect;
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/* Scaled image size limits with this crop rect. Divide
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max_height, but not min_height, by two when capturing
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single fields. See also bttv_crop_reset() and
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bttv_crop_adjust() in bttv-driver.c. */
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__s32 min_scaled_width;
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__s32 min_scaled_height;
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__s32 max_scaled_width;
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__s32 max_scaled_height;
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};
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struct bttv_fh {
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/* This must be the first field in this struct */
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struct v4l2_fh fh;
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struct bttv *btv;
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int resources;
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enum v4l2_buf_type type;
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/* video capture */
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struct videobuf_queue cap;
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const struct bttv_format *fmt;
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int width;
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int height;
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/* video overlay */
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const struct bttv_format *ovfmt;
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struct bttv_overlay ov;
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/* Application called VIDIOC_S_SELECTION. */
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int do_crop;
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/* vbi capture */
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struct videobuf_queue vbi;
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/* Current VBI capture window as seen through this fh (cannot
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be global for compatibility with earlier drivers). Protected
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by struct bttv.lock and struct bttv_fh.vbi.lock. */
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struct bttv_vbi_fmt vbi_fmt;
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};
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/* ---------------------------------------------------------- */
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/* bttv-risc.c */
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/* risc code generators - capture */
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int bttv_risc_packed(struct bttv *btv, struct btcx_riscmem *risc,
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struct scatterlist *sglist,
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unsigned int offset, unsigned int bpl,
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unsigned int pitch, unsigned int skip_lines,
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unsigned int store_lines);
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/* control dma register + risc main loop */
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void bttv_set_dma(struct bttv *btv, int override);
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int bttv_risc_init_main(struct bttv *btv);
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int bttv_risc_hook(struct bttv *btv, int slot, struct btcx_riscmem *risc,
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int irqflags);
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/* capture buffer handling */
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int bttv_buffer_risc(struct bttv *btv, struct bttv_buffer *buf);
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int bttv_buffer_activate_video(struct bttv *btv,
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struct bttv_buffer_set *set);
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int bttv_buffer_activate_vbi(struct bttv *btv,
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struct bttv_buffer *vbi);
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void bttv_dma_free(struct videobuf_queue *q, struct bttv *btv,
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struct bttv_buffer *buf);
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/* overlay handling */
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int bttv_overlay_risc(struct bttv *btv, struct bttv_overlay *ov,
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const struct bttv_format *fmt,
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struct bttv_buffer *buf);
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/* ---------------------------------------------------------- */
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/* bttv-vbi.c */
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int bttv_try_fmt_vbi_cap(struct file *file, void *fh, struct v4l2_format *f);
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int bttv_g_fmt_vbi_cap(struct file *file, void *fh, struct v4l2_format *f);
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int bttv_s_fmt_vbi_cap(struct file *file, void *fh, struct v4l2_format *f);
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extern const struct videobuf_queue_ops bttv_vbi_qops;
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/* ---------------------------------------------------------- */
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/* bttv-gpio.c */
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extern struct bus_type bttv_sub_bus_type;
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int bttv_sub_add_device(struct bttv_core *core, char *name);
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int bttv_sub_del_devices(struct bttv_core *core);
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/* ---------------------------------------------------------- */
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/* bttv-cards.c */
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extern int no_overlay;
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/* ---------------------------------------------------------- */
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/* bttv-input.c */
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extern void init_bttv_i2c_ir(struct bttv *btv);
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/* ---------------------------------------------------------- */
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/* bttv-i2c.c */
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extern int init_bttv_i2c(struct bttv *btv);
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extern int fini_bttv_i2c(struct bttv *btv);
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/* ---------------------------------------------------------- */
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/* bttv-driver.c */
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/* insmod options */
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extern unsigned int bttv_verbose;
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extern unsigned int bttv_debug;
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extern unsigned int bttv_gpio;
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extern void bttv_gpio_tracking(struct bttv *btv, char *comment);
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#define dprintk(fmt, ...) \
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do { \
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if (bttv_debug >= 1) \
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pr_debug(fmt, ##__VA_ARGS__); \
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} while (0)
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#define dprintk_cont(fmt, ...) \
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do { \
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if (bttv_debug >= 1) \
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pr_cont(fmt, ##__VA_ARGS__); \
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} while (0)
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#define d2printk(fmt, ...) \
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do { \
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if (bttv_debug >= 2) \
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printk(fmt, ##__VA_ARGS__); \
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} while (0)
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#define BTTV_MAX_FBUF 0x208000
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#define BTTV_TIMEOUT msecs_to_jiffies(500) /* 0.5 seconds */
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#define BTTV_FREE_IDLE msecs_to_jiffies(1000) /* one second */
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struct bttv_pll_info {
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unsigned int pll_ifreq; /* PLL input frequency */
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unsigned int pll_ofreq; /* PLL output frequency */
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unsigned int pll_crystal; /* Crystal used for input */
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unsigned int pll_current; /* Currently programmed ofreq */
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};
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/* for gpio-connected remote control */
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struct bttv_input {
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struct input_dev *dev;
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char name[32];
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char phys[32];
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u32 mask_keycode;
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u32 mask_keydown;
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};
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struct bttv_suspend_state {
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u32 gpio_enable;
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u32 gpio_data;
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int disabled;
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int loop_irq;
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struct bttv_buffer_set video;
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struct bttv_buffer *vbi;
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};
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struct bttv_tea575x_gpio {
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u8 data, clk, wren, most;
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};
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struct bttv {
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struct bttv_core c;
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/* pci device config */
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unsigned short id;
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unsigned char revision;
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unsigned char __iomem *bt848_mmio; /* pointer to mmio */
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/* card configuration info */
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unsigned int cardid; /* pci subsystem id (bt878 based ones) */
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unsigned int tuner_type; /* tuner chip type */
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unsigned int tda9887_conf;
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unsigned int svhs, dig;
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unsigned int has_saa6588:1;
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struct bttv_pll_info pll;
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int triton1;
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int gpioirq;
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int use_i2c_hw;
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/* old gpio interface */
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int shutdown;
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void (*volume_gpio)(struct bttv *btv, __u16 volume);
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void (*audio_mode_gpio)(struct bttv *btv, struct v4l2_tuner *tuner, int set);
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/* new gpio interface */
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spinlock_t gpio_lock;
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/* i2c layer */
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struct i2c_algo_bit_data i2c_algo;
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struct i2c_client i2c_client;
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int i2c_state, i2c_rc;
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int i2c_done;
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wait_queue_head_t i2c_queue;
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struct v4l2_subdev *sd_msp34xx;
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struct v4l2_subdev *sd_tvaudio;
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struct v4l2_subdev *sd_tda7432;
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/* video4linux (1) */
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struct video_device video_dev;
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struct video_device radio_dev;
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struct video_device vbi_dev;
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/* controls */
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struct v4l2_ctrl_handler ctrl_handler;
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struct v4l2_ctrl_handler radio_ctrl_handler;
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/* infrared remote */
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int has_remote;
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struct bttv_ir *remote;
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/* I2C remote data */
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struct IR_i2c_init_data init_data;
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/* locking */
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spinlock_t s_lock;
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struct mutex lock;
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int resources;
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/* video state */
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unsigned int input;
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unsigned int audio_input;
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unsigned int mute;
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unsigned long tv_freq;
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unsigned int tvnorm;
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v4l2_std_id std;
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int hue, contrast, bright, saturation;
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struct v4l2_framebuffer fbuf;
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unsigned int field_count;
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/* various options */
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int opt_combfilter;
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int opt_automute;
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int opt_vcr_hack;
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int opt_uv_ratio;
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/* radio data/state */
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int has_radio;
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int has_radio_tuner;
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int radio_user;
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int radio_uses_msp_demodulator;
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unsigned long radio_freq;
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/* miro/pinnacle + Aimslab VHX
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philips matchbox (tea5757 radio tuner) support */
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int has_tea575x;
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struct bttv_tea575x_gpio tea_gpio;
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struct snd_tea575x tea;
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/* ISA stuff (Terratec Active Radio Upgrade) */
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int mbox_ior;
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int mbox_iow;
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int mbox_csel;
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/* switch status for multi-controller cards */
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char sw_status[4];
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/* risc memory management data
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- must acquire s_lock before changing these
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- only the irq handler is supported to touch top + bottom + vcurr */
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struct btcx_riscmem main;
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struct bttv_buffer *screen; /* overlay */
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struct list_head capture; /* video capture queue */
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struct list_head vcapture; /* vbi capture queue */
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struct bttv_buffer_set curr; /* active buffers */
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struct bttv_buffer *cvbi; /* active vbi buffer */
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int loop_irq;
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int new_input;
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unsigned long cap_ctl;
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unsigned long dma_on;
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struct timer_list timeout;
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struct bttv_suspend_state state;
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/* stats */
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unsigned int errors;
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unsigned int framedrop;
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unsigned int irq_total;
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unsigned int irq_me;
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unsigned int users;
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struct bttv_fh init;
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/* used to make dvb-bt8xx autoloadable */
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struct work_struct request_module_wk;
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/* Default (0) and current (1) video capturing and overlay
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cropping parameters in bttv_tvnorm.cropcap units. Protected
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by bttv.lock. */
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struct bttv_crop crop[2];
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/* Earliest possible start of video capturing in
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bttv_tvnorm.cropcap line units. Set by check_alloc_btres()
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and free_btres(). Protected by bttv.lock. */
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__s32 vbi_end;
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/* Latest possible end of VBI capturing (= crop[x].rect.top when
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VIDEO_RESOURCES are locked). Set by check_alloc_btres()
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and free_btres(). Protected by bttv.lock. */
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__s32 crop_start;
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};
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static inline struct bttv *to_bttv(struct v4l2_device *v4l2_dev)
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{
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return container_of(v4l2_dev, struct bttv, c.v4l2_dev);
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}
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/* our devices */
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#define BTTV_MAX 32
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extern unsigned int bttv_num;
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extern struct bttv *bttvs[BTTV_MAX];
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static inline unsigned int bttv_muxsel(const struct bttv *btv,
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unsigned int input)
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{
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return (bttv_tvcards[btv->c.type].muxsel >> (input * 2)) & 3;
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}
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#endif
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#define btwrite(dat,adr) writel((dat), btv->bt848_mmio+(adr))
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#define btread(adr) readl(btv->bt848_mmio+(adr))
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#define btand(dat,adr) btwrite((dat) & btread(adr), adr)
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#define btor(dat,adr) btwrite((dat) | btread(adr), adr)
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#define btaor(dat,mask,adr) btwrite((dat) | ((mask) & btread(adr)), adr)
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#endif /* _BTTVP_H_ */
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