diff options
Diffstat (limited to 'drivers/media/pci/cx18/cx18-driver.h')
| -rw-r--r-- | drivers/media/pci/cx18/cx18-driver.h | 730 |
1 files changed, 730 insertions, 0 deletions
diff --git a/drivers/media/pci/cx18/cx18-driver.h b/drivers/media/pci/cx18/cx18-driver.h new file mode 100644 index 00000000000..2767c64df0c --- /dev/null +++ b/drivers/media/pci/cx18/cx18-driver.h @@ -0,0 +1,730 @@ +/* + * cx18 driver internal defines and structures + * + * Derived from ivtv-driver.h + * + * Copyright (C) 2007 Hans Verkuil <hverkuil@xs4all.nl> + * Copyright (C) 2008 Andy Walls <awalls@md.metrocast.net> + * + * 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 CX18_DRIVER_H +#define CX18_DRIVER_H + +#include <linux/module.h> +#include <linux/moduleparam.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/workqueue.h> +#include <linux/mutex.h> +#include <linux/slab.h> +#include <asm/byteorder.h> + +#include <media/v4l2-common.h> +#include <media/v4l2-ioctl.h> +#include <media/v4l2-device.h> +#include <media/v4l2-fh.h> +#include <media/tuner.h> +#include <media/ir-kbd-i2c.h> +#include "cx18-mailbox.h" +#include "cx18-av-core.h" +#include "cx23418.h" + +/* DVB */ +#include "demux.h" +#include "dmxdev.h" +#include "dvb_demux.h" +#include "dvb_frontend.h" +#include "dvb_net.h" +#include "dvbdev.h" + +/* Videobuf / YUV support */ +#include <media/videobuf-core.h> +#include <media/videobuf-vmalloc.h> + +#ifndef CONFIG_PCI +# error "This driver requires kernel PCI support." +#endif + +#define CX18_MEM_OFFSET 0x00000000 +#define CX18_MEM_SIZE 0x04000000 +#define CX18_REG_OFFSET 0x02000000 + +/* Maximum cx18 driver instances. */ +#define CX18_MAX_CARDS 32 + +/* Supported cards */ +#define CX18_CARD_HVR_1600_ESMT 0 /* Hauppauge HVR 1600 (ESMT memory) */ +#define CX18_CARD_HVR_1600_SAMSUNG 1 /* Hauppauge HVR 1600 (Samsung memory) */ +#define CX18_CARD_COMPRO_H900 2 /* Compro VideoMate H900 */ +#define CX18_CARD_YUAN_MPC718 3 /* Yuan MPC718 */ +#define CX18_CARD_CNXT_RAPTOR_PAL 4 /* Conexant Raptor PAL */ +#define CX18_CARD_TOSHIBA_QOSMIO_DVBT 5 /* Toshiba Qosmio Interal DVB-T/Analog*/ +#define CX18_CARD_LEADTEK_PVR2100 6 /* Leadtek WinFast PVR2100 */ +#define CX18_CARD_LEADTEK_DVR3100H 7 /* Leadtek WinFast DVR3100 H */ +#define CX18_CARD_GOTVIEW_PCI_DVD3 8 /* GoTView PCI DVD3 Hybrid */ +#define CX18_CARD_HVR_1600_S5H1411 9 /* Hauppauge HVR 1600 s5h1411/tda18271*/ +#define CX18_CARD_LAST 9 + +#define CX18_ENC_STREAM_TYPE_MPG 0 +#define CX18_ENC_STREAM_TYPE_TS 1 +#define CX18_ENC_STREAM_TYPE_YUV 2 +#define CX18_ENC_STREAM_TYPE_VBI 3 +#define CX18_ENC_STREAM_TYPE_PCM 4 +#define CX18_ENC_STREAM_TYPE_IDX 5 +#define CX18_ENC_STREAM_TYPE_RAD 6 +#define CX18_MAX_STREAMS 7 + +/* system vendor and device IDs */ +#define PCI_VENDOR_ID_CX 0x14f1 +#define PCI_DEVICE_ID_CX23418 0x5b7a + +/* subsystem vendor ID */ +#define CX18_PCI_ID_HAUPPAUGE 0x0070 +#define CX18_PCI_ID_COMPRO 0x185b +#define CX18_PCI_ID_YUAN 0x12ab +#define CX18_PCI_ID_CONEXANT 0x14f1 +#define CX18_PCI_ID_TOSHIBA 0x1179 +#define CX18_PCI_ID_LEADTEK 0x107D +#define CX18_PCI_ID_GOTVIEW 0x5854 + +/* ======================================================================== */ +/* ========================== START USER SETTABLE DMA VARIABLES =========== */ +/* ======================================================================== */ + +/* DMA Buffers, Default size in MB allocated */ +#define CX18_DEFAULT_ENC_TS_BUFFERS 1 +#define CX18_DEFAULT_ENC_MPG_BUFFERS 2 +#define CX18_DEFAULT_ENC_IDX_BUFFERS 1 +#define CX18_DEFAULT_ENC_YUV_BUFFERS 2 +#define CX18_DEFAULT_ENC_VBI_BUFFERS 1 +#define CX18_DEFAULT_ENC_PCM_BUFFERS 1 + +/* Maximum firmware DMA buffers per stream */ +#define CX18_MAX_FW_MDLS_PER_STREAM 63 + +/* YUV buffer sizes in bytes to ensure integer # of frames per buffer */ +#define CX18_UNIT_ENC_YUV_BUFSIZE (720 * 32 * 3 / 2) /* bytes */ +#define CX18_625_LINE_ENC_YUV_BUFSIZE (CX18_UNIT_ENC_YUV_BUFSIZE * 576/32) +#define CX18_525_LINE_ENC_YUV_BUFSIZE (CX18_UNIT_ENC_YUV_BUFSIZE * 480/32) + +/* IDX buffer size should be a multiple of the index entry size from the chip */ +struct cx18_enc_idx_entry { + __le32 length; + __le32 offset_low; + __le32 offset_high; + __le32 flags; + __le32 pts_low; + __le32 pts_high; +} __attribute__ ((packed)); +#define CX18_UNIT_ENC_IDX_BUFSIZE \ + (sizeof(struct cx18_enc_idx_entry) * V4L2_ENC_IDX_ENTRIES) + +/* DMA buffer, default size in kB allocated */ +#define CX18_DEFAULT_ENC_TS_BUFSIZE 32 +#define CX18_DEFAULT_ENC_MPG_BUFSIZE 32 +#define CX18_DEFAULT_ENC_IDX_BUFSIZE (CX18_UNIT_ENC_IDX_BUFSIZE * 1 / 1024 + 1) +#define CX18_DEFAULT_ENC_YUV_BUFSIZE (CX18_UNIT_ENC_YUV_BUFSIZE * 3 / 1024 + 1) +#define CX18_DEFAULT_ENC_PCM_BUFSIZE 4 + +/* i2c stuff */ +#define I2C_CLIENTS_MAX 16 + +/* debugging */ + +/* Flag to turn on high volume debugging */ +#define CX18_DBGFLG_WARN (1 << 0) +#define CX18_DBGFLG_INFO (1 << 1) +#define CX18_DBGFLG_API (1 << 2) +#define CX18_DBGFLG_DMA (1 << 3) +#define CX18_DBGFLG_IOCTL (1 << 4) +#define CX18_DBGFLG_FILE (1 << 5) +#define CX18_DBGFLG_I2C (1 << 6) +#define CX18_DBGFLG_IRQ (1 << 7) +/* Flag to turn on high volume debugging */ +#define CX18_DBGFLG_HIGHVOL (1 << 8) + +/* NOTE: extra space before comma in 'fmt , ## args' is required for + gcc-2.95, otherwise it won't compile. */ +#define CX18_DEBUG(x, type, fmt, args...) \ + do { \ + if ((x) & cx18_debug) \ + v4l2_info(&cx->v4l2_dev, " " type ": " fmt , ## args); \ + } while (0) +#define CX18_DEBUG_WARN(fmt, args...) CX18_DEBUG(CX18_DBGFLG_WARN, "warning", fmt , ## args) +#define CX18_DEBUG_INFO(fmt, args...) CX18_DEBUG(CX18_DBGFLG_INFO, "info", fmt , ## args) +#define CX18_DEBUG_API(fmt, args...) CX18_DEBUG(CX18_DBGFLG_API, "api", fmt , ## args) +#define CX18_DEBUG_DMA(fmt, args...) CX18_DEBUG(CX18_DBGFLG_DMA, "dma", fmt , ## args) +#define CX18_DEBUG_IOCTL(fmt, args...) CX18_DEBUG(CX18_DBGFLG_IOCTL, "ioctl", fmt , ## args) +#define CX18_DEBUG_FILE(fmt, args...) CX18_DEBUG(CX18_DBGFLG_FILE, "file", fmt , ## args) +#define CX18_DEBUG_I2C(fmt, args...) CX18_DEBUG(CX18_DBGFLG_I2C, "i2c", fmt , ## args) +#define CX18_DEBUG_IRQ(fmt, args...) CX18_DEBUG(CX18_DBGFLG_IRQ, "irq", fmt , ## args) + +#define CX18_DEBUG_HIGH_VOL(x, type, fmt, args...) \ + do { \ + if (((x) & cx18_debug) && (cx18_debug & CX18_DBGFLG_HIGHVOL)) \ + v4l2_info(&cx->v4l2_dev, " " type ": " fmt , ## args); \ + } while (0) +#define CX18_DEBUG_HI_WARN(fmt, args...) CX18_DEBUG_HIGH_VOL(CX18_DBGFLG_WARN, "warning", fmt , ## args) +#define CX18_DEBUG_HI_INFO(fmt, args...) CX18_DEBUG_HIGH_VOL(CX18_DBGFLG_INFO, "info", fmt , ## args) +#define CX18_DEBUG_HI_API(fmt, args...) CX18_DEBUG_HIGH_VOL(CX18_DBGFLG_API, "api", fmt , ## args) +#define CX18_DEBUG_HI_DMA(fmt, args...) CX18_DEBUG_HIGH_VOL(CX18_DBGFLG_DMA, "dma", fmt , ## args) +#define CX18_DEBUG_HI_IOCTL(fmt, args...) CX18_DEBUG_HIGH_VOL(CX18_DBGFLG_IOCTL, "ioctl", fmt , ## args) +#define CX18_DEBUG_HI_FILE(fmt, args...) CX18_DEBUG_HIGH_VOL(CX18_DBGFLG_FILE, "file", fmt , ## args) +#define CX18_DEBUG_HI_I2C(fmt, args...) CX18_DEBUG_HIGH_VOL(CX18_DBGFLG_I2C, "i2c", fmt , ## args) +#define CX18_DEBUG_HI_IRQ(fmt, args...) CX18_DEBUG_HIGH_VOL(CX18_DBGFLG_IRQ, "irq", fmt , ## args) + +/* Standard kernel messages */ +#define CX18_ERR(fmt, args...) v4l2_err(&cx->v4l2_dev, fmt , ## args) +#define CX18_WARN(fmt, args...) v4l2_warn(&cx->v4l2_dev, fmt , ## args) +#define CX18_INFO(fmt, args...) v4l2_info(&cx->v4l2_dev, fmt , ## args) + +/* Messages for internal subdevs to use */ +#define CX18_DEBUG_DEV(x, dev, type, fmt, args...) \ + do { \ + if ((x) & cx18_debug) \ + v4l2_info(dev, " " type ": " fmt , ## args); \ + } while (0) +#define CX18_DEBUG_WARN_DEV(dev, fmt, args...) \ + CX18_DEBUG_DEV(CX18_DBGFLG_WARN, dev, "warning", fmt , ## args) +#define CX18_DEBUG_INFO_DEV(dev, fmt, args...) \ + CX18_DEBUG_DEV(CX18_DBGFLG_INFO, dev, "info", fmt , ## args) +#define CX18_DEBUG_API_DEV(dev, fmt, args...) \ + CX18_DEBUG_DEV(CX18_DBGFLG_API, dev, "api", fmt , ## args) +#define CX18_DEBUG_DMA_DEV(dev, fmt, args...) \ + CX18_DEBUG_DEV(CX18_DBGFLG_DMA, dev, "dma", fmt , ## args) +#define CX18_DEBUG_IOCTL_DEV(dev, fmt, args...) \ + CX18_DEBUG_DEV(CX18_DBGFLG_IOCTL, dev, "ioctl", fmt , ## args) +#define CX18_DEBUG_FILE_DEV(dev, fmt, args...) \ + CX18_DEBUG_DEV(CX18_DBGFLG_FILE, dev, "file", fmt , ## args) +#define CX18_DEBUG_I2C_DEV(dev, fmt, args...) \ + CX18_DEBUG_DEV(CX18_DBGFLG_I2C, dev, "i2c", fmt , ## args) +#define CX18_DEBUG_IRQ_DEV(dev, fmt, args...) \ + CX18_DEBUG_DEV(CX18_DBGFLG_IRQ, dev, "irq", fmt , ## args) + +#define CX18_DEBUG_HIGH_VOL_DEV(x, dev, type, fmt, args...) \ + do { \ + if (((x) & cx18_debug) && (cx18_debug & CX18_DBGFLG_HIGHVOL)) \ + v4l2_info(dev, " " type ": " fmt , ## args); \ + } while (0) +#define CX18_DEBUG_HI_WARN_DEV(dev, fmt, args...) \ + CX18_DEBUG_HIGH_VOL_DEV(CX18_DBGFLG_WARN, dev, "warning", fmt , ## args) +#define CX18_DEBUG_HI_INFO_DEV(dev, fmt, args...) \ + CX18_DEBUG_HIGH_VOL_DEV(CX18_DBGFLG_INFO, dev, "info", fmt , ## args) +#define CX18_DEBUG_HI_API_DEV(dev, fmt, args...) \ + CX18_DEBUG_HIGH_VOL_DEV(CX18_DBGFLG_API, dev, "api", fmt , ## args) +#define CX18_DEBUG_HI_DMA_DEV(dev, fmt, args...) \ + CX18_DEBUG_HIGH_VOL_DEV(CX18_DBGFLG_DMA, dev, "dma", fmt , ## args) +#define CX18_DEBUG_HI_IOCTL_DEV(dev, fmt, args...) \ + CX18_DEBUG_HIGH_VOL_DEV(CX18_DBGFLG_IOCTL, dev, "ioctl", fmt , ## args) +#define CX18_DEBUG_HI_FILE_DEV(dev, fmt, args...) \ + CX18_DEBUG_HIGH_VOL_DEV(CX18_DBGFLG_FILE, dev, "file", fmt , ## args) +#define CX18_DEBUG_HI_I2C_DEV(dev, fmt, args...) \ + CX18_DEBUG_HIGH_VOL_DEV(CX18_DBGFLG_I2C, dev, "i2c", fmt , ## args) +#define CX18_DEBUG_HI_IRQ_DEV(dev, fmt, args...) \ + CX18_DEBUG_HIGH_VOL_DEV(CX18_DBGFLG_IRQ, dev, "irq", fmt , ## args) + +#define CX18_ERR_DEV(dev, fmt, args...) v4l2_err(dev, fmt , ## args) +#define CX18_WARN_DEV(dev, fmt, args...) v4l2_warn(dev, fmt , ## args) +#define CX18_INFO_DEV(dev, fmt, args...) v4l2_info(dev, fmt , ## args) + +extern int cx18_debug; + +struct cx18_options { + int megabytes[CX18_MAX_STREAMS]; /* Size in megabytes of each stream */ + int cardtype; /* force card type on load */ + int tuner; /* set tuner on load */ + int radio; /* enable/disable radio */ +}; + +/* per-mdl bit flags */ +#define CX18_F_M_NEED_SWAP 0 /* mdl buffer data must be endianess swapped */ + +/* per-stream, s_flags */ +#define CX18_F_S_CLAIMED 3 /* this stream is claimed */ +#define CX18_F_S_STREAMING 4 /* the fw is decoding/encoding this stream */ +#define CX18_F_S_INTERNAL_USE 5 /* this stream is used internally (sliced VBI processing) */ +#define CX18_F_S_STREAMOFF 7 /* signal end of stream EOS */ +#define CX18_F_S_APPL_IO 8 /* this stream is used read/written by an application */ +#define CX18_F_S_STOPPING 9 /* telling the fw to stop capturing */ + +/* per-cx18, i_flags */ +#define CX18_F_I_LOADED_FW 0 /* Loaded firmware 1st time */ +#define CX18_F_I_EOS 4 /* End of encoder stream */ +#define CX18_F_I_RADIO_USER 5 /* radio tuner is selected */ +#define CX18_F_I_ENC_PAUSED 13 /* the encoder is paused */ +#define CX18_F_I_INITED 21 /* set after first open */ +#define CX18_F_I_FAILED 22 /* set if first open failed */ + +/* These are the VBI types as they appear in the embedded VBI private packets. */ +#define CX18_SLICED_TYPE_TELETEXT_B (1) +#define CX18_SLICED_TYPE_CAPTION_525 (4) +#define CX18_SLICED_TYPE_WSS_625 (5) +#define CX18_SLICED_TYPE_VPS (7) + +/** + * list_entry_is_past_end - check if a previous loop cursor is off list end + * @pos: the type * previously used as a loop cursor. + * @head: the head for your list. + * @member: the name of the list_struct within the struct. + * + * Check if the entry's list_head is the head of the list, thus it's not a + * real entry but was the loop cursor that walked past the end + */ +#define list_entry_is_past_end(pos, head, member) \ + (&pos->member == (head)) + +struct cx18_buffer { + struct list_head list; + dma_addr_t dma_handle; + char *buf; + + u32 bytesused; + u32 readpos; +}; + +struct cx18_mdl { + struct list_head list; + u32 id; /* index into cx->scb->cpu_mdl[] of 1st cx18_mdl_ent */ + + unsigned int skipped; + unsigned long m_flags; + + struct list_head buf_list; + struct cx18_buffer *curr_buf; /* current buffer in list for reading */ + + u32 bytesused; + u32 readpos; +}; + +struct cx18_queue { + struct list_head list; + atomic_t depth; + u32 bytesused; + spinlock_t lock; +}; + +struct cx18_stream; /* forward reference */ + +struct cx18_dvb { + struct cx18_stream *stream; + struct dmx_frontend hw_frontend; + struct dmx_frontend mem_frontend; + struct dmxdev dmxdev; + struct dvb_adapter dvb_adapter; + struct dvb_demux demux; + struct dvb_frontend *fe; + struct dvb_net dvbnet; + int enabled; + int feeding; + struct mutex feedlock; +}; + +struct cx18; /* forward reference */ +struct cx18_scb; /* forward reference */ + + +#define CX18_MAX_MDL_ACKS 2 +#define CX18_MAX_IN_WORK_ORDERS (CX18_MAX_FW_MDLS_PER_STREAM + 7) +/* CPU_DE_RELEASE_MDL can burst CX18_MAX_FW_MDLS_PER_STREAM orders in a group */ + +#define CX18_F_EWO_MB_STALE_UPON_RECEIPT 0x1 +#define CX18_F_EWO_MB_STALE_WHILE_PROC 0x2 +#define CX18_F_EWO_MB_STALE \ + (CX18_F_EWO_MB_STALE_UPON_RECEIPT | CX18_F_EWO_MB_STALE_WHILE_PROC) + +struct cx18_in_work_order { + struct work_struct work; + atomic_t pending; + struct cx18 *cx; + unsigned long flags; + int rpu; + struct cx18_mailbox mb; + struct cx18_mdl_ack mdl_ack[CX18_MAX_MDL_ACKS]; + char *str; +}; + +#define CX18_INVALID_TASK_HANDLE 0xffffffff + +struct cx18_stream { + /* These first five fields are always set, even if the stream + is not actually created. */ + struct video_device *video_dev; /* NULL when stream not created */ + struct cx18_dvb *dvb; /* DVB / Digital Transport */ + struct cx18 *cx; /* for ease of use */ + const char *name; /* name of the stream */ + int type; /* stream type */ + u32 handle; /* task handle */ + unsigned int mdl_base_idx; + + u32 id; + unsigned long s_flags; /* status flags, see above */ + int dma; /* can be PCI_DMA_TODEVICE, + PCI_DMA_FROMDEVICE or + PCI_DMA_NONE */ + wait_queue_head_t waitq; + + /* Buffers */ + struct list_head buf_pool; /* buffers not attached to an MDL */ + u32 buffers; /* total buffers owned by this stream */ + u32 buf_size; /* size in bytes of a single buffer */ + + /* MDL sizes - all stream MDLs are the same size */ + u32 bufs_per_mdl; + u32 mdl_size; /* total bytes in all buffers in a mdl */ + + /* MDL Queues */ + struct cx18_queue q_free; /* free - in rotation, not committed */ + struct cx18_queue q_busy; /* busy - in use by firmware */ + struct cx18_queue q_full; /* full - data for user apps */ + struct cx18_queue q_idle; /* idle - not in rotation */ + + struct work_struct out_work_order; + + /* Videobuf for YUV video */ + u32 pixelformat; + u32 vb_bytes_per_frame; + struct list_head vb_capture; /* video capture queue */ + spinlock_t vb_lock; + struct timer_list vb_timeout; + + struct videobuf_queue vbuf_q; + spinlock_t vbuf_q_lock; /* Protect vbuf_q */ + enum v4l2_buf_type vb_type; +}; + +struct cx18_videobuf_buffer { + /* Common video buffer sub-system struct */ + struct videobuf_buffer vb; + v4l2_std_id tvnorm; /* selected tv norm */ + u32 bytes_used; +}; + +struct cx18_open_id { + struct v4l2_fh fh; + u32 open_id; + int type; + struct cx18 *cx; +}; + +static inline struct cx18_open_id *fh2id(struct v4l2_fh *fh) +{ + return container_of(fh, struct cx18_open_id, fh); +} + +static inline struct cx18_open_id *file2id(struct file *file) +{ + return fh2id(file->private_data); +} + +/* forward declaration of struct defined in cx18-cards.h */ +struct cx18_card; + +/* + * A note about "sliced" VBI data as implemented in this driver: + * + * Currently we collect the sliced VBI in the form of Ancillary Data + * packets, inserted by the AV core decoder/digitizer/slicer in the + * horizontal blanking region of the VBI lines, in "raw" mode as far as + * the Encoder is concerned. We don't ever tell the Encoder itself + * to provide sliced VBI. (AV Core: sliced mode - Encoder: raw mode) + * + * We then process the ancillary data ourselves to send the sliced data + * to the user application directly or build up MPEG-2 private stream 1 + * packets to splice into (only!) MPEG-2 PS streams for the user app. + * + * (That's how ivtv essentially does it.) + * + * The Encoder should be able to extract certain sliced VBI data for + * us and provide it in a separate stream or splice it into any type of + * MPEG PS or TS stream, but this isn't implemented yet. + */ + +/* + * Number of "raw" VBI samples per horizontal line we tell the Encoder to + * grab from the decoder/digitizer/slicer output for raw or sliced VBI. + * It depends on the pixel clock and the horiz rate: + * + * (1/Fh)*(2*Fp) = Samples/line + * = 4 bytes EAV + Anc data in hblank + 4 bytes SAV + active samples + * + * Sliced VBI data is sent as ancillary data during horizontal blanking + * Raw VBI is sent as active video samples during vertcal blanking + * + * We use a BT.656 pxiel clock of 13.5 MHz and a BT.656 active line + * length of 720 pixels @ 4:2:2 sampling. Thus... + * + * For systems that use a 15.734 kHz horizontal rate, such as + * NTSC-M, PAL-M, PAL-60, and other 60 Hz/525 line systems, we have: + * + * (1/15.734 kHz) * 2 * 13.5 MHz = 1716 samples/line = + * 4 bytes SAV + 268 bytes anc data + 4 bytes SAV + 1440 active samples + * + * For systems that use a 15.625 kHz horizontal rate, such as + * PAL-B/G/H, PAL-I, SECAM-L and other 50 Hz/625 line systems, we have: + * + * (1/15.625 kHz) * 2 * 13.5 MHz = 1728 samples/line = + * 4 bytes SAV + 280 bytes anc data + 4 bytes SAV + 1440 active samples + */ +static const u32 vbi_active_samples = 1444; /* 4 byte SAV + 720 Y + 720 U/V */ +static const u32 vbi_hblank_samples_60Hz = 272; /* 4 byte EAV + 268 anc/fill */ +static const u32 vbi_hblank_samples_50Hz = 284; /* 4 byte EAV + 280 anc/fill */ + +#define CX18_VBI_FRAMES 32 + +struct vbi_info { + /* Current state of v4l2 VBI settings for this device */ + struct v4l2_format in; + struct v4l2_sliced_vbi_format *sliced_in; /* pointer to in.fmt.sliced */ + u32 count; /* Count of VBI data lines: 60 Hz: 12 or 50 Hz: 18 */ + u32 start[2]; /* First VBI data line per field: 10 & 273 or 6 & 318 */ + + u32 frame; /* Count of VBI buffers/frames received from Encoder */ + + /* + * Vars for creation and insertion of MPEG Private Stream 1 packets + * of sliced VBI data into an MPEG PS + */ + + /* Boolean: create and insert Private Stream 1 packets into the PS */ + int insert_mpeg; + + /* + * Buffer for the maximum of 2 * 18 * packet_size sliced VBI lines. + * Used in cx18-vbi.c only for collecting sliced data, and as a source + * during conversion of sliced VBI data into MPEG Priv Stream 1 packets. + * We don't need to save state here, but the array may have been a bit + * too big (2304 bytes) to alloc from the stack. + */ + struct v4l2_sliced_vbi_data sliced_data[36]; + + /* + * A ring buffer of driver-generated MPEG-2 PS + * Program Pack/Private Stream 1 packets for sliced VBI data insertion + * into the MPEG PS stream. + * + * In each sliced_mpeg_data[] buffer is: + * 16 byte MPEG-2 PS Program Pack Header + * 16 byte MPEG-2 Private Stream 1 PES Header + * 4 byte magic number: "itv0" or "ITV0" + * 4 byte first field line mask, if "itv0" + * 4 byte second field line mask, if "itv0" + * 36 lines, if "ITV0"; or <36 lines, if "itv0"; of sliced VBI data + * + * Each line in the payload is + * 1 byte line header derived from the SDID (WSS, CC, VPS, etc.) + * 42 bytes of line data + * + * That's a maximum 1552 bytes of payload in the Private Stream 1 packet + * which is the payload size a PVR-350 (CX23415) MPEG decoder will + * accept for VBI data. So, including the headers, it's a maximum 1584 + * bytes total. + */ +#define CX18_SLICED_MPEG_DATA_MAXSZ 1584 + /* copy_vbi_buf() needs 8 temp bytes on the end for the worst case */ +#define CX18_SLICED_MPEG_DATA_BUFSZ (CX18_SLICED_MPEG_DATA_MAXSZ+8) + u8 *sliced_mpeg_data[CX18_VBI_FRAMES]; + u32 sliced_mpeg_size[CX18_VBI_FRAMES]; + + /* Count of Program Pack/Program Stream 1 packets inserted into PS */ + u32 inserted_frame; + + /* + * A dummy driver stream transfer mdl & buffer with a copy of the next + * sliced_mpeg_data[] buffer for output to userland apps. + * Only used in cx18-fileops.c, but its state needs to persist at times. + */ + struct cx18_mdl sliced_mpeg_mdl; + struct cx18_buffer sliced_mpeg_buf; +}; + +/* Per cx23418, per I2C bus private algo callback data */ +struct cx18_i2c_algo_callback_data { + struct cx18 *cx; + int bus_index; /* 0 or 1 for the cx23418's 1st or 2nd I2C bus */ +}; + +#define CX18_MAX_MMIO_WR_RETRIES 10 + +/* Struct to hold info about cx18 cards */ +struct cx18 { + int instance; + struct pci_dev *pci_dev; + struct v4l2_device v4l2_dev; + struct v4l2_subdev *sd_av; /* A/V decoder/digitizer sub-device */ + struct v4l2_subdev *sd_extmux; /* External multiplexer sub-dev */ + + const struct cx18_card *card; /* card information */ + const char *card_name; /* full name of the card */ + const struct cx18_card_tuner_i2c *card_i2c; /* i2c addresses to probe for tuner */ + u8 is_50hz; + u8 is_60hz; + 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 */ + unsigned int free_mdl_idx; + struct cx18_scb __iomem *scb; /* pointer to SCB */ + struct mutex epu2apu_mb_lock; /* protect driver to chip mailbox in SCB*/ + struct mutex epu2cpu_mb_lock; /* protect driver to chip mailbox in SCB*/ + + struct cx18_av_state av_state; + + /* codec settings */ + struct cx2341x_handler cxhdl; + u32 filter_mode; + u32 temporal_strength; + u32 spatial_strength; + + /* dualwatch */ + unsigned long dualwatch_jiffies; + u32 dualwatch_stereo_mode; + + struct mutex serialize_lock; /* mutex used to serialize open/close/start/stop/ioctl operations */ + struct cx18_options options; /* User options */ + int stream_buffers[CX18_MAX_STREAMS]; /* # of buffers for each stream */ + int stream_buf_size[CX18_MAX_STREAMS]; /* Stream buffer size */ + struct cx18_stream streams[CX18_MAX_STREAMS]; /* Stream data */ + struct snd_cx18_card *alsa; /* ALSA interface for PCM capture stream */ + void (*pcm_announce_callback)(struct snd_cx18_card *card, u8 *pcm_data, + size_t num_bytes); + + unsigned long i_flags; /* global cx18 flags */ + atomic_t ana_capturing; /* count number of active analog capture streams */ + atomic_t tot_capturing; /* total count number of active capture streams */ + int search_pack_header; + + int open_id; /* incremented each time an open occurs, used as + unique ID. Starts at 1, so 0 can be used as + uninitialized value in the stream->id. */ + + resource_size_t base_addr; + + u8 card_rev; + void __iomem *enc_mem, *reg_mem; + + struct vbi_info vbi; + + u64 mpg_data_received; + u64 vbi_data_inserted; + + wait_queue_head_t mb_apu_waitq; + wait_queue_head_t mb_cpu_waitq; + wait_queue_head_t cap_w; + /* when the current DMA is finished this queue is woken up */ + wait_queue_head_t dma_waitq; + + u32 sw1_irq_mask; + u32 sw2_irq_mask; + u32 hw2_irq_mask; + + struct workqueue_struct *in_work_queue; + char in_workq_name[11]; /* "cx18-NN-in" */ + struct cx18_in_work_order in_work_order[CX18_MAX_IN_WORK_ORDERS]; + char epu_debug_str[256]; /* CX18_EPU_DEBUG is rare: use shared space */ + + /* i2c */ + struct i2c_adapter i2c_adap[2]; + struct i2c_algo_bit_data i2c_algo[2]; + struct cx18_i2c_algo_callback_data i2c_algo_cb_data[2]; + + struct IR_i2c_init_data ir_i2c_init_data; + + /* gpio */ + u32 gpio_dir; + u32 gpio_val; + struct mutex gpio_lock; + struct v4l2_subdev sd_gpiomux; + struct v4l2_subdev sd_resetctrl; + + /* v4l2 and User settings */ + + /* codec settings */ + u32 audio_input; + u32 active_input; + v4l2_std_id std; + v4l2_std_id tuner_std; /* The norm of the tuner (fixed) */ + + /* Used for cx18-alsa module loading */ + struct work_struct request_module_wk; +}; + +static inline struct cx18 *to_cx18(struct v4l2_device *v4l2_dev) +{ + return container_of(v4l2_dev, struct cx18, v4l2_dev); +} + +/* cx18 extensions to be loaded */ +extern int (*cx18_ext_init)(struct cx18 *); + +/* Globals */ +extern int cx18_first_minor; + +/*==============Prototypes==================*/ + +/* Return non-zero if a signal is pending */ +int cx18_msleep_timeout(unsigned int msecs, int intr); + +/* Read Hauppauge eeprom */ +struct tveeprom; /* forward reference */ +void cx18_read_eeprom(struct cx18 *cx, struct tveeprom *tv); + +/* First-open initialization: load firmware, etc. */ +int cx18_init_on_first_open(struct cx18 *cx); + +/* Test if the current VBI mode is raw (1) or sliced (0) */ +static inline int cx18_raw_vbi(const struct cx18 *cx) +{ + return cx->vbi.in.type == V4L2_BUF_TYPE_VBI_CAPTURE; +} + +/* Call the specified callback for all subdevs with a grp_id bit matching the + * mask in hw (if 0, then match them all). Ignore any errors. */ +#define cx18_call_hw(cx, hw, o, f, args...) \ + do { \ + struct v4l2_subdev *__sd; \ + __v4l2_device_call_subdevs_p(&(cx)->v4l2_dev, __sd, \ + !(hw) || (__sd->grp_id & (hw)), o, f , ##args); \ + } while (0) + +#define cx18_call_all(cx, o, f, args...) cx18_call_hw(cx, 0, o, f , ##args) + +/* Call the specified callback for all subdevs with a grp_id bit matching the + * mask in 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 cx18_call_hw_err(cx, hw, o, f, args...) \ +({ \ + struct v4l2_subdev *__sd; \ + __v4l2_device_call_subdevs_until_err_p(&(cx)->v4l2_dev, \ + __sd, !(hw) || (__sd->grp_id & (hw)), o, f, \ + ##args); \ +}) + +#define cx18_call_all_err(cx, o, f, args...) \ + cx18_call_hw_err(cx, 0, o, f , ##args) + +#endif /* CX18_DRIVER_H */ |