--- /dev/null
+/*
+ ivtv driver internal defines and structures
+ Copyright (C) 2003-2004 Kevin Thayer <nufan_wfk at yahoo.com>
+ Copyright (C) 2004 Chris Kennedy <c@groovy.org>
+ Copyright (C) 2005-2007 Hans Verkuil <hverkuil@xs4all.nl>
+
+ This program is free software; you can redistribute it and/or modify
+ it under the terms of the GNU General Public License as published by
+ the Free Software Foundation; either version 2 of the License, or
+ (at your option) any later version.
+
+ This program is distributed in the hope that it will be useful,
+ but WITHOUT ANY WARRANTY; without even the implied warranty of
+ MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
+ GNU General Public License for more details.
+
+ You should have received a copy of the GNU General Public License
+ along with this program; if not, write to the Free Software
+ Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA
+ */
+
+#ifndef IVTV_DRIVER_H
+#define IVTV_DRIVER_H
+
+/* Internal header for ivtv project:
+ * Driver for the cx23415/6 chip.
+ * Author: Kevin Thayer (nufan_wfk at yahoo.com)
+ * License: GPL
+ * http://www.ivtvdriver.org
+ *
+ * -----
+ * MPG600/MPG160 support by T.Adachi <tadachi@tadachi-net.com>
+ * and Takeru KOMORIYA<komoriya@paken.org>
+ *
+ * AVerMedia M179 GPIO info by Chris Pinkham <cpinkham@bc2va.org>
+ * using information provided by Jiun-Kuei Jung @ AVerMedia.
+ */
+
+#include <linux/module.h>
+#include <linux/init.h>
+#include <linux/delay.h>
+#include <linux/sched.h>
+#include <linux/fs.h>
+#include <linux/pci.h>
+#include <linux/interrupt.h>
+#include <linux/spinlock.h>
+#include <linux/i2c.h>
+#include <linux/i2c-algo-bit.h>
+#include <linux/list.h>
+#include <linux/unistd.h>
+#include <linux/pagemap.h>
+#include <linux/scatterlist.h>
+#include <linux/kthread.h>
+#include <linux/mutex.h>
+#include <linux/slab.h>
+#include <asm/uaccess.h>
+#include <asm/byteorder.h>
+
+#include <linux/dvb/video.h>
+#include <linux/dvb/audio.h>
+#include <media/v4l2-common.h>
+#include <media/v4l2-ioctl.h>
+#include <media/v4l2-ctrls.h>
+#include <media/v4l2-device.h>
+#include <media/v4l2-fh.h>
+#include <media/tuner.h>
+#include <media/cx2341x.h>
+#include <media/ir-kbd-i2c.h>
+
+#include <linux/ivtv.h>
+
+/* Memory layout */
+#define IVTV_ENCODER_OFFSET 0x00000000
+#define IVTV_ENCODER_SIZE 0x00800000 /* Total size is 0x01000000, but only first half is used */
+#define IVTV_DECODER_OFFSET 0x01000000
+#define IVTV_DECODER_SIZE 0x00800000 /* Total size is 0x01000000, but only first half is used */
+#define IVTV_REG_OFFSET 0x02000000
+#define IVTV_REG_SIZE 0x00010000
+
+/* Maximum ivtv driver instances. Some people have a huge number of
+ capture cards, so set this to a high value. */
+#define IVTV_MAX_CARDS 32
+
+#define IVTV_ENC_STREAM_TYPE_MPG 0
+#define IVTV_ENC_STREAM_TYPE_YUV 1
+#define IVTV_ENC_STREAM_TYPE_VBI 2
+#define IVTV_ENC_STREAM_TYPE_PCM 3
+#define IVTV_ENC_STREAM_TYPE_RAD 4
+#define IVTV_DEC_STREAM_TYPE_MPG 5
+#define IVTV_DEC_STREAM_TYPE_VBI 6
+#define IVTV_DEC_STREAM_TYPE_VOUT 7
+#define IVTV_DEC_STREAM_TYPE_YUV 8
+#define IVTV_MAX_STREAMS 9
+
+#define IVTV_DMA_SG_OSD_ENT (2883584/PAGE_SIZE) /* sg entities */
+
+/* DMA Registers */
+#define IVTV_REG_DMAXFER (0x0000)
+#define IVTV_REG_DMASTATUS (0x0004)
+#define IVTV_REG_DECDMAADDR (0x0008)
+#define IVTV_REG_ENCDMAADDR (0x000c)
+#define IVTV_REG_DMACONTROL (0x0010)
+#define IVTV_REG_IRQSTATUS (0x0040)
+#define IVTV_REG_IRQMASK (0x0048)
+
+/* Setup Registers */
+#define IVTV_REG_ENC_SDRAM_REFRESH (0x07F8)
+#define IVTV_REG_ENC_SDRAM_PRECHARGE (0x07FC)
+#define IVTV_REG_DEC_SDRAM_REFRESH (0x08F8)
+#define IVTV_REG_DEC_SDRAM_PRECHARGE (0x08FC)
+#define IVTV_REG_VDM (0x2800)
+#define IVTV_REG_AO (0x2D00)
+#define IVTV_REG_BYTEFLUSH (0x2D24)
+#define IVTV_REG_SPU (0x9050)
+#define IVTV_REG_HW_BLOCKS (0x9054)
+#define IVTV_REG_VPU (0x9058)
+#define IVTV_REG_APU (0xA064)
+
+/* Other registers */
+#define IVTV_REG_DEC_LINE_FIELD (0x28C0)
+
+/* debugging */
+extern int ivtv_debug;
+#ifdef CONFIG_VIDEO_ADV_DEBUG
+extern int ivtv_fw_debug;
+#endif
+
+#define IVTV_DBGFLG_WARN (1 << 0)
+#define IVTV_DBGFLG_INFO (1 << 1)
+#define IVTV_DBGFLG_MB (1 << 2)
+#define IVTV_DBGFLG_IOCTL (1 << 3)
+#define IVTV_DBGFLG_FILE (1 << 4)
+#define IVTV_DBGFLG_DMA (1 << 5)
+#define IVTV_DBGFLG_IRQ (1 << 6)
+#define IVTV_DBGFLG_DEC (1 << 7)
+#define IVTV_DBGFLG_YUV (1 << 8)
+#define IVTV_DBGFLG_I2C (1 << 9)
+/* Flag to turn on high volume debugging */
+#define IVTV_DBGFLG_HIGHVOL (1 << 10)
+
+#define IVTV_DEBUG(x, type, fmt, args...) \
+ do { \
+ if ((x) & ivtv_debug) \
+ v4l2_info(&itv->v4l2_dev, " " type ": " fmt , ##args); \
+ } while (0)
+#define IVTV_DEBUG_WARN(fmt, args...) IVTV_DEBUG(IVTV_DBGFLG_WARN, "warn", fmt , ## args)
+#define IVTV_DEBUG_INFO(fmt, args...) IVTV_DEBUG(IVTV_DBGFLG_INFO, "info", fmt , ## args)
+#define IVTV_DEBUG_MB(fmt, args...) IVTV_DEBUG(IVTV_DBGFLG_MB, "mb", fmt , ## args)
+#define IVTV_DEBUG_DMA(fmt, args...) IVTV_DEBUG(IVTV_DBGFLG_DMA, "dma", fmt , ## args)
+#define IVTV_DEBUG_IOCTL(fmt, args...) IVTV_DEBUG(IVTV_DBGFLG_IOCTL, "ioctl", fmt , ## args)
+#define IVTV_DEBUG_FILE(fmt, args...) IVTV_DEBUG(IVTV_DBGFLG_FILE, "file", fmt , ## args)
+#define IVTV_DEBUG_I2C(fmt, args...) IVTV_DEBUG(IVTV_DBGFLG_I2C, "i2c", fmt , ## args)
+#define IVTV_DEBUG_IRQ(fmt, args...) IVTV_DEBUG(IVTV_DBGFLG_IRQ, "irq", fmt , ## args)
+#define IVTV_DEBUG_DEC(fmt, args...) IVTV_DEBUG(IVTV_DBGFLG_DEC, "dec", fmt , ## args)
+#define IVTV_DEBUG_YUV(fmt, args...) IVTV_DEBUG(IVTV_DBGFLG_YUV, "yuv", fmt , ## args)
+
+#define IVTV_DEBUG_HIGH_VOL(x, type, fmt, args...) \
+ do { \
+ if (((x) & ivtv_debug) && (ivtv_debug & IVTV_DBGFLG_HIGHVOL)) \
+ v4l2_info(&itv->v4l2_dev, " " type ": " fmt , ##args); \
+ } while (0)
+#define IVTV_DEBUG_HI_WARN(fmt, args...) IVTV_DEBUG_HIGH_VOL(IVTV_DBGFLG_WARN, "warn", fmt , ## args)
+#define IVTV_DEBUG_HI_INFO(fmt, args...) IVTV_DEBUG_HIGH_VOL(IVTV_DBGFLG_INFO, "info", fmt , ## args)
+#define IVTV_DEBUG_HI_MB(fmt, args...) IVTV_DEBUG_HIGH_VOL(IVTV_DBGFLG_MB, "mb", fmt , ## args)
+#define IVTV_DEBUG_HI_DMA(fmt, args...) IVTV_DEBUG_HIGH_VOL(IVTV_DBGFLG_DMA, "dma", fmt , ## args)
+#define IVTV_DEBUG_HI_IOCTL(fmt, args...) IVTV_DEBUG_HIGH_VOL(IVTV_DBGFLG_IOCTL, "ioctl", fmt , ## args)
+#define IVTV_DEBUG_HI_FILE(fmt, args...) IVTV_DEBUG_HIGH_VOL(IVTV_DBGFLG_FILE, "file", fmt , ## args)
+#define IVTV_DEBUG_HI_I2C(fmt, args...) IVTV_DEBUG_HIGH_VOL(IVTV_DBGFLG_I2C, "i2c", fmt , ## args)
+#define IVTV_DEBUG_HI_IRQ(fmt, args...) IVTV_DEBUG_HIGH_VOL(IVTV_DBGFLG_IRQ, "irq", fmt , ## args)
+#define IVTV_DEBUG_HI_DEC(fmt, args...) IVTV_DEBUG_HIGH_VOL(IVTV_DBGFLG_DEC, "dec", fmt , ## args)
+#define IVTV_DEBUG_HI_YUV(fmt, args...) IVTV_DEBUG_HIGH_VOL(IVTV_DBGFLG_YUV, "yuv", fmt , ## args)
+
+/* Standard kernel messages */
+#define IVTV_ERR(fmt, args...) v4l2_err(&itv->v4l2_dev, fmt , ## args)
+#define IVTV_WARN(fmt, args...) v4l2_warn(&itv->v4l2_dev, fmt , ## args)
+#define IVTV_INFO(fmt, args...) v4l2_info(&itv->v4l2_dev, fmt , ## args)
+
+/* output modes (cx23415 only) */
+#define OUT_NONE 0
+#define OUT_MPG 1
+#define OUT_YUV 2
+#define OUT_UDMA_YUV 3
+#define OUT_PASSTHROUGH 4
+
+#define IVTV_MAX_PGM_INDEX (400)
+
+/* Default I2C SCL period in microseconds */
+#define IVTV_DEFAULT_I2C_CLOCK_PERIOD 20
+
+struct ivtv_options {
+ int kilobytes[IVTV_MAX_STREAMS]; /* size in kilobytes of each stream */
+ int cardtype; /* force card type on load */
+ int tuner; /* set tuner on load */
+ int radio; /* enable/disable radio */
+ int newi2c; /* new I2C algorithm */
+ int i2c_clock_period; /* period of SCL for I2C bus */
+};
+
+/* ivtv-specific mailbox template */
+struct ivtv_mailbox {
+ u32 flags;
+ u32 cmd;
+ u32 retval;
+ u32 timeout;
+ u32 data[CX2341X_MBOX_MAX_DATA];
+};
+
+struct ivtv_api_cache {
+ unsigned long last_jiffies; /* when last command was issued */
+ u32 data[CX2341X_MBOX_MAX_DATA]; /* last sent api data */
+};
+
+struct ivtv_mailbox_data {
+ volatile struct ivtv_mailbox __iomem *mbox;
+ /* Bits 0-2 are for the encoder mailboxes, 0-1 are for the decoder mailboxes.
+ If the bit is set, then the corresponding mailbox is in use by the driver. */
+ unsigned long busy;
+ u8 max_mbox;
+};
+
+/* per-buffer bit flags */
+#define IVTV_F_B_NEED_BUF_SWAP (1 << 0) /* this buffer should be byte swapped */
+
+/* per-stream, s_flags */
+#define IVTV_F_S_DMA_PENDING 0 /* this stream has pending DMA */
+#define IVTV_F_S_DMA_HAS_VBI 1 /* the current DMA request also requests VBI data */
+#define IVTV_F_S_NEEDS_DATA 2 /* this decoding stream needs more data */
+
+#define IVTV_F_S_CLAIMED 3 /* this stream is claimed */
+#define IVTV_F_S_STREAMING 4 /* the fw is decoding/encoding this stream */
+#define IVTV_F_S_INTERNAL_USE 5 /* this stream is used internally (sliced VBI processing) */
+#define IVTV_F_S_PASSTHROUGH 6 /* this stream is in passthrough mode */
+#define IVTV_F_S_STREAMOFF 7 /* signal end of stream EOS */
+#define IVTV_F_S_APPL_IO 8 /* this stream is used read/written by an application */
+
+#define IVTV_F_S_PIO_PENDING 9 /* this stream has pending PIO */
+#define IVTV_F_S_PIO_HAS_VBI 1 /* the current PIO request also requests VBI data */
+
+/* per-ivtv, i_flags */
+#define IVTV_F_I_DMA 0 /* DMA in progress */
+#define IVTV_F_I_UDMA 1 /* UDMA in progress */
+#define IVTV_F_I_UDMA_PENDING 2 /* UDMA pending */
+#define IVTV_F_I_SPEED_CHANGE 3 /* a speed change is in progress */
+#define IVTV_F_I_EOS 4 /* end of encoder stream reached */
+#define IVTV_F_I_RADIO_USER 5 /* the radio tuner is selected */
+#define IVTV_F_I_DIG_RST 6 /* reset digitizer */
+#define IVTV_F_I_DEC_YUV 7 /* YUV instead of MPG is being decoded */
+#define IVTV_F_I_UPDATE_CC 9 /* CC should be updated */
+#define IVTV_F_I_UPDATE_WSS 10 /* WSS should be updated */
+#define IVTV_F_I_UPDATE_VPS 11 /* VPS should be updated */
+#define IVTV_F_I_DECODING_YUV 12 /* this stream is YUV frame decoding */
+#define IVTV_F_I_ENC_PAUSED 13 /* the encoder is paused */
+#define IVTV_F_I_VALID_DEC_TIMINGS 14 /* last_dec_timing is valid */
+#define IVTV_F_I_HAVE_WORK 15 /* used in the interrupt handler: there is work to be done */
+#define IVTV_F_I_WORK_HANDLER_VBI 16 /* there is work to be done for VBI */
+#define IVTV_F_I_WORK_HANDLER_YUV 17 /* there is work to be done for YUV */
+#define IVTV_F_I_WORK_HANDLER_PIO 18 /* there is work to be done for PIO */
+#define IVTV_F_I_PIO 19 /* PIO in progress */
+#define IVTV_F_I_DEC_PAUSED 20 /* the decoder is paused */
+#define IVTV_F_I_INITED 21 /* set after first open */
+#define IVTV_F_I_FAILED 22 /* set if first open failed */
+#define IVTV_F_I_WORK_HANDLER_PCM 23 /* there is work to be done for PCM */
+
+/* Event notifications */
+#define IVTV_F_I_EV_DEC_STOPPED 28 /* decoder stopped event */
+#define IVTV_F_I_EV_VSYNC 29 /* VSYNC event */
+#define IVTV_F_I_EV_VSYNC_FIELD 30 /* VSYNC event field (0 = first, 1 = second field) */
+#define IVTV_F_I_EV_VSYNC_ENABLED 31 /* VSYNC event enabled */
+
+/* Scatter-Gather array element, used in DMA transfers */
+struct ivtv_sg_element {
+ __le32 src;
+ __le32 dst;
+ __le32 size;
+};
+
+struct ivtv_sg_host_element {
+ u32 src;
+ u32 dst;
+ u32 size;
+};
+
+struct ivtv_user_dma {
+ struct mutex lock;
+ int page_count;
+ struct page *map[IVTV_DMA_SG_OSD_ENT];
+ /* Needed when dealing with highmem userspace buffers */
+ struct page *bouncemap[IVTV_DMA_SG_OSD_ENT];
+
+ /* Base Dev SG Array for cx23415/6 */
+ struct ivtv_sg_element SGarray[IVTV_DMA_SG_OSD_ENT];
+ dma_addr_t SG_handle;
+ int SG_length;
+
+ /* SG List of Buffers */
+ struct scatterlist SGlist[IVTV_DMA_SG_OSD_ENT];
+};
+
+struct ivtv_dma_page_info {
+ unsigned long uaddr;
+ unsigned long first;
+ unsigned long last;
+ unsigned int offset;
+ unsigned int tail;
+ int page_count;
+};
+
+struct ivtv_buffer {
+ struct list_head list;
+ dma_addr_t dma_handle;
+ unsigned short b_flags;
+ unsigned short dma_xfer_cnt;
+ char *buf;
+ u32 bytesused;
+ u32 readpos;
+};
+
+struct ivtv_queue {
+ struct list_head list; /* the list of buffers in this queue */
+ u32 buffers; /* number of buffers in this queue */
+ u32 length; /* total number of bytes of available buffer space */
+ u32 bytesused; /* total number of bytes used in this queue */
+};
+
+struct ivtv; /* forward reference */
+
+struct ivtv_stream {
+ /* These first four fields are always set, even if the stream
+ is not actually created. */
+ struct video_device vdev; /* vdev.v4l2_dev is NULL if there is no device */
+ struct ivtv *itv; /* for ease of use */
+ const char *name; /* name of the stream */
+ int type; /* stream type */
+ u32 caps; /* V4L2 capabilities */
+
+ struct v4l2_fh *fh; /* pointer to the streaming filehandle */
+ spinlock_t qlock; /* locks access to the queues */
+ unsigned long s_flags; /* status flags, see above */
+ int dma; /* can be PCI_DMA_TODEVICE, PCI_DMA_FROMDEVICE or PCI_DMA_NONE */
+ u32 pending_offset;
+ u32 pending_backup;
+ u64 pending_pts;
+
+ u32 dma_offset;
+ u32 dma_backup;
+ u64 dma_pts;
+
+ int subtype;
+ wait_queue_head_t waitq;
+ u32 dma_last_offset;
+
+ /* Buffer Stats */
+ u32 buffers;
+ u32 buf_size;
+ u32 buffers_stolen;
+
+ /* Buffer Queues */
+ struct ivtv_queue q_free; /* free buffers */
+ struct ivtv_queue q_full; /* full buffers */
+ struct ivtv_queue q_io; /* waiting for I/O */
+ struct ivtv_queue q_dma; /* waiting for DMA */
+ struct ivtv_queue q_predma; /* waiting for DMA */
+
+ /* DMA xfer counter, buffers belonging to the same DMA
+ xfer will have the same dma_xfer_cnt. */
+ u16 dma_xfer_cnt;
+
+ /* Base Dev SG Array for cx23415/6 */
+ struct ivtv_sg_host_element *sg_pending;
+ struct ivtv_sg_host_element *sg_processing;
+ struct ivtv_sg_element *sg_dma;
+ dma_addr_t sg_handle;
+ int sg_pending_size;
+ int sg_processing_size;
+ int sg_processed;
+
+ /* SG List of Buffers */
+ struct scatterlist *SGlist;
+};
+
+struct ivtv_open_id {
+ struct v4l2_fh fh;
+ int type; /* stream type */
+ int yuv_frames; /* 1: started OUT_UDMA_YUV output mode */
+ struct ivtv *itv;
+};
+
+static inline struct ivtv_open_id *fh2id(struct v4l2_fh *fh)
+{
+ return container_of(fh, struct ivtv_open_id, fh);
+}
+
+struct yuv_frame_info
+{
+ u32 update;
+ s32 src_x;
+ s32 src_y;
+ u32 src_w;
+ u32 src_h;
+ s32 dst_x;
+ s32 dst_y;
+ u32 dst_w;
+ u32 dst_h;
+ s32 pan_x;
+ s32 pan_y;
+ u32 vis_w;
+ u32 vis_h;
+ u32 interlaced_y;
+ u32 interlaced_uv;
+ s32 tru_x;
+ u32 tru_w;
+ u32 tru_h;
+ u32 offset_y;
+ s32 lace_mode;
+ u32 sync_field;
+ u32 delay;
+ u32 interlaced;
+};
+
+#define IVTV_YUV_MODE_INTERLACED 0x00
+#define IVTV_YUV_MODE_PROGRESSIVE 0x01
+#define IVTV_YUV_MODE_AUTO 0x02
+#define IVTV_YUV_MODE_MASK 0x03
+
+#define IVTV_YUV_SYNC_EVEN 0x00
+#define IVTV_YUV_SYNC_ODD 0x04
+#define IVTV_YUV_SYNC_MASK 0x04
+
+#define IVTV_YUV_BUFFERS 8
+
+struct yuv_playback_info
+{
+ u32 reg_2834;
+ u32 reg_2838;
+ u32 reg_283c;
+ u32 reg_2840;
+ u32 reg_2844;
+ u32 reg_2848;
+ u32 reg_2854;
+ u32 reg_285c;
+ u32 reg_2864;
+
+ u32 reg_2870;
+ u32 reg_2874;
+ u32 reg_2890;
+ u32 reg_2898;
+ u32 reg_289c;
+
+ u32 reg_2918;
+ u32 reg_291c;
+ u32 reg_2920;
+ u32 reg_2924;
+ u32 reg_2928;
+ u32 reg_292c;
+ u32 reg_2930;
+
+ u32 reg_2934;
+
+ u32 reg_2938;
+ u32 reg_293c;
+ u32 reg_2940;
+ u32 reg_2944;
+ u32 reg_2948;
+ u32 reg_294c;
+ u32 reg_2950;
+ u32 reg_2954;
+ u32 reg_2958;
+ u32 reg_295c;
+ u32 reg_2960;
+ u32 reg_2964;
+ u32 reg_2968;
+ u32 reg_296c;
+
+ u32 reg_2970;
+
+ int v_filter_1;
+ int v_filter_2;
+ int h_filter;
+
+ u8 track_osd; /* Should yuv output track the OSD size & position */
+
+ u32 osd_x_offset;
+ u32 osd_y_offset;
+
+ u32 osd_x_pan;
+ u32 osd_y_pan;
+
+ u32 osd_vis_w;
+ u32 osd_vis_h;
+
+ u32 osd_full_w;
+ u32 osd_full_h;
+
+ int decode_height;
+
+ int lace_mode;
+ int lace_threshold;
+ int lace_sync_field;
+
+ atomic_t next_dma_frame;
+ atomic_t next_fill_frame;
+
+ u32 yuv_forced_update;
+ int update_frame;
+
+ u8 fields_lapsed; /* Counter used when delaying a frame */
+
+ struct yuv_frame_info new_frame_info[IVTV_YUV_BUFFERS];
+ struct yuv_frame_info old_frame_info;
+ struct yuv_frame_info old_frame_info_args;
+
+ void *blanking_ptr;
+ dma_addr_t blanking_dmaptr;
+
+ int stream_size;
+
+ u8 draw_frame; /* PVR350 buffer to draw into */
+ u8 max_frames_buffered; /* Maximum number of frames to buffer */
+
+ struct v4l2_rect main_rect;
+ u32 v4l2_src_w;
+ u32 v4l2_src_h;
+
+ u8 running; /* Have any frames been displayed */
+};
+
+#define IVTV_VBI_FRAMES 32
+
+/* VBI data */
+struct vbi_cc {
+ u8 odd[2]; /* two-byte payload of odd field */
+ u8 even[2]; /* two-byte payload of even field */;
+};
+
+struct vbi_vps {
+ u8 data[5]; /* five-byte VPS payload */
+};
+
+struct vbi_info {
+ /* VBI general data, does not change during streaming */
+
+ u32 raw_decoder_line_size; /* raw VBI line size from digitizer */
+ u8 raw_decoder_sav_odd_field; /* raw VBI Start Active Video digitizer code of odd field */
+ u8 raw_decoder_sav_even_field; /* raw VBI Start Active Video digitizer code of even field */
+ u32 sliced_decoder_line_size; /* sliced VBI line size from digitizer */
+ u8 sliced_decoder_sav_odd_field; /* sliced VBI Start Active Video digitizer code of odd field */
+ u8 sliced_decoder_sav_even_field; /* sliced VBI Start Active Video digitizer code of even field */
+
+ u32 start[2]; /* start of first VBI line in the odd/even fields */
+ u32 count; /* number of VBI lines per field */
+ u32 raw_size; /* size of raw VBI line from the digitizer */
+ u32 sliced_size; /* size of sliced VBI line from the digitizer */
+
+ u32 dec_start; /* start in decoder memory of VBI re-insertion buffers */
+ u32 enc_start; /* start in encoder memory of VBI capture buffers */
+ u32 enc_size; /* size of VBI capture area */
+ int fpi; /* number of VBI frames per interrupt */
+
+ struct v4l2_format in; /* current VBI capture format */
+ struct v4l2_sliced_vbi_format *sliced_in; /* convenience pointer to sliced struct in vbi.in union */
+ int insert_mpeg; /* if non-zero, then embed VBI data in MPEG stream */
+
+ /* Raw VBI compatibility hack */
+
+ u32 frame; /* frame counter hack needed for backwards compatibility
+ of old VBI software */
+
+ /* Sliced VBI output data */
+
+ struct vbi_cc cc_payload[256]; /* sliced VBI CC payload array: it is an array to
+ prevent dropping CC data if they couldn't be
+ processed fast enough */
+ int cc_payload_idx; /* index in cc_payload */
+ u8 cc_missing_cnt; /* counts number of frames without CC for passthrough mode */
+ int wss_payload; /* sliced VBI WSS payload */
+ u8 wss_missing_cnt; /* counts number of frames without WSS for passthrough mode */
+ struct vbi_vps vps_payload; /* sliced VBI VPS payload */
+
+ /* Sliced VBI capture data */
+
+ struct v4l2_sliced_vbi_data sliced_data[36]; /* sliced VBI storage for VBI encoder stream */
+ struct v4l2_sliced_vbi_data sliced_dec_data[36];/* sliced VBI storage for VBI decoder stream */
+
+ /* VBI Embedding data */
+
+ /* Buffer for VBI data inserted into MPEG stream.
+ The first byte is a dummy byte that's never used.
+ The next 16 bytes contain the MPEG header for the VBI data,
+ the remainder is the actual VBI data.
+ The max size accepted by the MPEG VBI reinsertion turns out
+ to be 1552 bytes, which happens to be 4 + (1 + 42) * (2 * 18) bytes,
+ where 4 is a four byte header, 42 is the max sliced VBI payload, 1 is
+ a single line header byte and 2 * 18 is the number of VBI lines per frame.
+
+ However, it seems that the data must be 1K aligned, so we have to
+ pad the data until the 1 or 2 K boundary.
+
+ This pointer array will allocate 2049 bytes to store each VBI frame. */
+ u8 *sliced_mpeg_data[IVTV_VBI_FRAMES];
+ u32 sliced_mpeg_size[IVTV_VBI_FRAMES];
+ struct ivtv_buffer sliced_mpeg_buf; /* temporary buffer holding data from sliced_mpeg_data */
+ u32 inserted_frame; /* index in sliced_mpeg_size of next sliced data
+ to be inserted in the MPEG stream */
+};
+
+/* forward declaration of struct defined in ivtv-cards.h */
+struct ivtv_card;
+
+/* Struct to hold info about ivtv cards */
+struct ivtv {
+ /* General fixed card data */
+ struct pci_dev *pdev; /* PCI device */
+ const struct ivtv_card *card; /* card information */
+ const char *card_name; /* full name of the card */
+ const struct ivtv_card_tuner_i2c *card_i2c; /* i2c addresses to probe for tuner */
+ u8 has_cx23415; /* 1 if it is a cx23415 based card, 0 for cx23416 */
+ u8 pvr150_workaround; /* 1 if the cx25840 needs to workaround a PVR150 bug */
+ u8 nof_inputs; /* number of video inputs */
+ u8 nof_audio_inputs; /* number of audio inputs */
+ u32 v4l2_cap; /* V4L2 capabilities of card */
+ u32 hw_flags; /* hardware description of the board */
+ v4l2_std_id tuner_std; /* the norm of the card's tuner (fixed) */
+ struct v4l2_subdev *sd_video; /* controlling video decoder subdev */
+ struct v4l2_subdev *sd_audio; /* controlling audio subdev */
+ struct v4l2_subdev *sd_muxer; /* controlling audio muxer subdev */
+ resource_size_t base_addr; /* PCI resource base address */
+ volatile void __iomem *enc_mem; /* pointer to mapped encoder memory */
+ volatile void __iomem *dec_mem; /* pointer to mapped decoder memory */
+ volatile void __iomem *reg_mem; /* pointer to mapped registers */
+ struct ivtv_options options; /* user options */
+
+ struct v4l2_device v4l2_dev;
+ struct cx2341x_handler cxhdl;
+ struct {
+ /* PTS/Frame count control cluster */
+ struct v4l2_ctrl *ctrl_pts;
+ struct v4l2_ctrl *ctrl_frame;
+ };
+ struct {
+ /* Audio Playback control cluster */
+ struct v4l2_ctrl *ctrl_audio_playback;
+ struct v4l2_ctrl *ctrl_audio_multilingual_playback;
+ };
+ struct v4l2_ctrl_handler hdl_gpio;
+ struct v4l2_subdev sd_gpio; /* GPIO sub-device */
+ u16 instance;
+
+ /* High-level state info */
+ unsigned long i_flags; /* global ivtv flags */
+ u8 is_50hz; /* 1 if the current capture standard is 50 Hz */
+ u8 is_60hz /* 1 if the current capture standard is 60 Hz */;
+ u8 is_out_50hz /* 1 if the current TV output standard is 50 Hz */;
+ u8 is_out_60hz /* 1 if the current TV output standard is 60 Hz */;
+ int output_mode; /* decoder output mode: NONE, MPG, YUV, UDMA YUV, passthrough */
+ u32 audio_input; /* current audio input */
+ u32 active_input; /* current video input */
+ u32 active_output; /* current video output */
+ v4l2_std_id std; /* current capture TV standard */
+ v4l2_std_id std_out; /* current TV output standard */
+ u8 audio_stereo_mode; /* decoder setting how to handle stereo MPEG audio */
+ u8 audio_bilingual_mode; /* decoder setting how to handle bilingual MPEG audio */
+
+ /* Locking */
+ spinlock_t lock; /* lock access to this struct */
+ struct mutex serialize_lock; /* mutex used to serialize open/close/start/stop/ioctl operations */
+
+ /* Streams */
+ int stream_buf_size[IVTV_MAX_STREAMS]; /* stream buffer size */
+ struct ivtv_stream streams[IVTV_MAX_STREAMS]; /* stream data */
+ atomic_t capturing; /* count number of active capture streams */
+ atomic_t decoding; /* count number of active decoding streams */
+
+ /* ALSA interface for PCM capture stream */
+ struct snd_ivtv_card *alsa;
+ void (*pcm_announce_callback)(struct snd_ivtv_card *card, u8 *pcm_data,
+ size_t num_bytes);
+
+ /* Used for ivtv-alsa module loading */
+ struct work_struct request_module_wk;
+
+ /* Interrupts & DMA */
+ u32 irqmask; /* active interrupts */
+ u32 irq_rr_idx; /* round-robin stream index */
+ struct kthread_worker irq_worker; /* kthread worker for PIO/YUV/VBI actions */
+ struct task_struct *irq_worker_task; /* task for irq_worker */
+ struct kthread_work irq_work; /* kthread work entry */
+ spinlock_t dma_reg_lock; /* lock access to DMA engine registers */
+ int cur_dma_stream; /* index of current stream doing DMA (-1 if none) */
+ int cur_pio_stream; /* index of current stream doing PIO (-1 if none) */
+ u32 dma_data_req_offset; /* store offset in decoder memory of current DMA request */
+ u32 dma_data_req_size; /* store size of current DMA request */
+ int dma_retries; /* current DMA retry attempt */
+ struct ivtv_user_dma udma; /* user based DMA for OSD */
+ struct timer_list dma_timer; /* timer used to catch unfinished DMAs */
+ u32 last_vsync_field; /* last seen vsync field */
+ wait_queue_head_t dma_waitq; /* wake up when the current DMA is finished */
+ wait_queue_head_t eos_waitq; /* wake up when EOS arrives */
+ wait_queue_head_t event_waitq; /* wake up when the next decoder event arrives */
+ wait_queue_head_t vsync_waitq; /* wake up when the next decoder vsync arrives */
+
+
+ /* Mailbox */
+ struct ivtv_mailbox_data enc_mbox; /* encoder mailboxes */
+ struct ivtv_mailbox_data dec_mbox; /* decoder mailboxes */
+ struct ivtv_api_cache api_cache[256]; /* cached API commands */
+
+
+ /* I2C */
+ struct i2c_adapter i2c_adap;
+ struct i2c_algo_bit_data i2c_algo;
+ struct i2c_client i2c_client;
+ int i2c_state; /* i2c bit state */
+ struct mutex i2c_bus_lock; /* lock i2c bus */
+
+ struct IR_i2c_init_data ir_i2c_init_data;
+
+ /* Program Index information */
+ u32 pgm_info_offset; /* start of pgm info in encoder memory */
+ u32 pgm_info_num; /* number of elements in the pgm cyclic buffer in encoder memory */
+ u32 pgm_info_write_idx; /* last index written by the card that was transferred to pgm_info[] */
+ u32 pgm_info_read_idx; /* last index in pgm_info read by the application */
+ struct v4l2_enc_idx_entry pgm_info[IVTV_MAX_PGM_INDEX]; /* filled from the pgm cyclic buffer on the card */
+
+
+ /* Miscellaneous */
+ u32 open_id; /* incremented each time an open occurs, is >= 1 */
+ int search_pack_header; /* 1 if ivtv_copy_buf_to_user() is scanning for a pack header (0xba) */
+ int speed; /* current playback speed setting */
+ u8 speed_mute_audio; /* 1 if audio should be muted when fast forward */
+ u64 mpg_data_received; /* number of bytes received from the MPEG stream */
+ u64 vbi_data_inserted; /* number of VBI bytes inserted into the MPEG stream */
+ u32 last_dec_timing[3]; /* cache last retrieved pts/scr/frame values */
+ unsigned long dualwatch_jiffies;/* jiffies value of the previous dualwatch check */
+ u32 dualwatch_stereo_mode; /* current detected dualwatch stereo mode */
+
+
+ /* VBI state info */
+ struct vbi_info vbi; /* VBI-specific data */
+
+
+ /* YUV playback */
+ struct yuv_playback_info yuv_info; /* YUV playback data */
+
+
+ /* OSD support */
+ unsigned long osd_video_pbase;
+ int osd_global_alpha_state; /* 1 = global alpha is on */
+ int osd_local_alpha_state; /* 1 = local alpha is on */
+ int osd_chroma_key_state; /* 1 = chroma-keying is on */
+ u8 osd_global_alpha; /* current global alpha */
+ u32 osd_chroma_key; /* current chroma key */
+ struct v4l2_rect osd_rect; /* current OSD position and size */
+ struct v4l2_rect main_rect; /* current Main window position and size */
+ struct osd_info *osd_info; /* ivtvfb private OSD info */
+ void (*ivtvfb_restore)(struct ivtv *itv); /* Used for a warm start */
+};
+
+static inline struct ivtv *to_ivtv(struct v4l2_device *v4l2_dev)
+{
+ return container_of(v4l2_dev, struct ivtv, v4l2_dev);
+}
+
+/* ivtv extensions to be loaded */
+extern int (*ivtv_ext_init)(struct ivtv *);
+
+/* Globals */
+extern int ivtv_first_minor;
+
+/*==============Prototypes==================*/
+
+/* Hardware/IRQ */
+void ivtv_set_irq_mask(struct ivtv *itv, u32 mask);
+void ivtv_clear_irq_mask(struct ivtv *itv, u32 mask);
+
+/* try to set output mode, return current mode. */
+int ivtv_set_output_mode(struct ivtv *itv, int mode);
+
+/* return current output stream based on current mode */
+struct ivtv_stream *ivtv_get_output_stream(struct ivtv *itv);
+
+/* Return non-zero if a signal is pending */
+int ivtv_msleep_timeout(unsigned int msecs, int intr);
+
+/* Wait on queue, returns -EINTR if interrupted */
+int ivtv_waitq(wait_queue_head_t *waitq);
+
+/* Read Hauppauge eeprom */
+struct tveeprom; /* forward reference */
+void ivtv_read_eeprom(struct ivtv *itv, struct tveeprom *tv);
+
+/* First-open initialization: load firmware, init cx25840, etc. */
+int ivtv_init_on_first_open(struct ivtv *itv);
+
+/* Test if the current VBI mode is raw (1) or sliced (0) */
+static inline int ivtv_raw_vbi(const struct ivtv *itv)
+{
+ return itv->vbi.in.type == V4L2_BUF_TYPE_VBI_CAPTURE;
+}
+
+/* This is a PCI post thing, where if the pci register is not read, then
+ the write doesn't always take effect right away. By reading back the
+ register any pending PCI writes will be performed (in order), and so
+ you can be sure that the writes are guaranteed to be done.
+
+ Rarely needed, only in some timing sensitive cases.
+ Apparently if this is not done some motherboards seem
+ to kill the firmware and get into the broken state until computer is
+ rebooted. */
+#define write_sync(val, reg) \
+ do { writel(val, reg); readl(reg); } while (0)
+
+#define read_reg(reg) readl(itv->reg_mem + (reg))
+#define write_reg(val, reg) writel(val, itv->reg_mem + (reg))
+#define write_reg_sync(val, reg) \
+ do { write_reg(val, reg); read_reg(reg); } while (0)
+
+#define read_enc(addr) readl(itv->enc_mem + (u32)(addr))
+#define write_enc(val, addr) writel(val, itv->enc_mem + (u32)(addr))
+#define write_enc_sync(val, addr) \
+ do { write_enc(val, addr); read_enc(addr); } while (0)
+
+#define read_dec(addr) readl(itv->dec_mem + (u32)(addr))
+#define write_dec(val, addr) writel(val, itv->dec_mem + (u32)(addr))
+#define write_dec_sync(val, addr) \
+ do { write_dec(val, addr); read_dec(addr); } while (0)
+
+/* Call the specified callback for all subdevs matching hw (if 0, then
+ match them all). Ignore any errors. */
+#define ivtv_call_hw(itv, hw, o, f, args...) \
+ do { \
+ struct v4l2_subdev *__sd; \
+ __v4l2_device_call_subdevs_p(&(itv)->v4l2_dev, __sd, \
+ !(hw) || (__sd->grp_id & (hw)), o, f , ##args); \
+ } while (0)
+
+#define ivtv_call_all(itv, o, f, args...) ivtv_call_hw(itv, 0, o, f , ##args)
+
+/* Call the specified callback for all subdevs matching hw (if 0, then
+ match them all). If the callback returns an error other than 0 or
+ -ENOIOCTLCMD, then return with that error code. */
+#define ivtv_call_hw_err(itv, hw, o, f, args...) \
+({ \
+ struct v4l2_subdev *__sd; \
+ __v4l2_device_call_subdevs_until_err_p(&(itv)->v4l2_dev, __sd, \
+ !(hw) || (__sd->grp_id & (hw)), o, f , ##args); \
+})
+
+#define ivtv_call_all_err(itv, o, f, args...) ivtv_call_hw_err(itv, 0, o, f , ##args)
+
+#endif
Code Review / kvmfornfv.git / blobdiff