diff options
Diffstat (limited to 'drivers/media/pci/ivtv/ivtv-driver.h')
| -rw-r--r-- | drivers/media/pci/ivtv/ivtv-driver.h | 839 |
1 files changed, 839 insertions, 0 deletions
diff --git a/drivers/media/pci/ivtv/ivtv-driver.h b/drivers/media/pci/ivtv/ivtv-driver.h new file mode 100644 index 000000000000..a7e00f8938f8 --- /dev/null +++ b/drivers/media/pci/ivtv/ivtv-driver.h @@ -0,0 +1,839 @@ +/* + 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 */ + +/* 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; /* NULL when stream not created */ + 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 */ + + + /* 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); +} + +/* 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 |
