| /* |
| 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/version.h> |
| #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/byteorder/swab.h> |
| #include <linux/pagemap.h> |
| #include <linux/scatterlist.h> |
| #include <linux/workqueue.h> |
| #include <linux/mutex.h> |
| #include <asm/uaccess.h> |
| #include <asm/system.h> |
| |
| #include <linux/dvb/video.h> |
| #include <linux/dvb/audio.h> |
| #include <media/v4l2-common.h> |
| #include <media/tuner.h> |
| #include <media/cx2341x.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) |
| |
| /* i2c stuff */ |
| #define I2C_CLIENTS_MAX 16 |
| |
| /* debugging */ |
| extern int ivtv_debug; |
| |
| #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) |
| |
| /* NOTE: extra space before comma in 'itv->num , ## args' is required for |
| gcc-2.95, otherwise it won't compile. */ |
| #define IVTV_DEBUG(x, type, fmt, args...) \ |
| do { \ |
| if ((x) & ivtv_debug) \ |
| printk(KERN_INFO "ivtv%d " type ": " fmt, itv->num , ## 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)) \ |
| printk(KERN_INFO "ivtv%d " type ": " fmt, itv->num , ## 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...) printk(KERN_ERR "ivtv%d: " fmt, itv->num , ## args) |
| #define IVTV_WARN(fmt, args...) printk(KERN_WARNING "ivtv%d: " fmt, itv->num , ## args) |
| #define IVTV_INFO(fmt, args...) printk(KERN_INFO "ivtv%d: " fmt, itv->num , ## 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) |
| |
| 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 */ |
| }; |
| |
| /* 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 { |
| 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 *v4l2dev; /* NULL when stream not created */ |
| struct ivtv *itv; /* for ease of use */ |
| const char *name; /* name of the stream */ |
| int type; /* stream type */ |
| |
| u32 id; |
| 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_element *sg_pending; |
| struct ivtv_sg_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 { |
| u32 open_id; /* unique ID for this file descriptor */ |
| int type; /* stream type */ |
| int yuv_frames; /* 1: started OUT_UDMA_YUV output mode */ |
| enum v4l2_priority prio; /* priority */ |
| struct ivtv *itv; |
| }; |
| |
| 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; |
| |
| 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; |
| }; |
| |
| #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 */ |
| int num; /* board number, -1 during init! */ |
| char name[8]; /* board name for printk and interrupts (e.g. 'ivtv0') */ |
| struct pci_dev *dev; /* 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) */ |
| /* controlling video decoder function */ |
| int (*video_dec_func)(struct ivtv *, unsigned int, void *); |
| u32 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 */ |
| |
| |
| /* 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 */ |
| struct cx2341x_mpeg_params params; /* current encoder parameters */ |
| |
| |
| /* 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 workqueue_struct *irq_work_queues; /* workqueue for PIO/YUV/VBI actions */ |
| struct work_struct irq_work_queue; /* 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; |
| struct i2c_client *i2c_clients[I2C_CLIENTS_MAX];/* pointers to all I2C clients */ |
| int i2c_state; /* i2c bit state */ |
| struct mutex i2c_bus_lock; /* lock i2c bus */ |
| |
| |
| /* 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 */ |
| struct v4l2_prio_state prio; /* priority state */ |
| 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 */ |
| u16 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 */ |
| }; |
| |
| /* Globals */ |
| extern struct ivtv *ivtv_cards[]; |
| extern int ivtv_cards_active; |
| extern int ivtv_first_minor; |
| extern spinlock_t ivtv_cards_lock; |
| |
| /*==============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); |
| |
| /* 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) |
| |
| #endif |