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kernel-fxtec-pro1x/drivers/media/video/cx18/cx18-driver.h
Andy Walls 22dce188ef V4L/DVB (13430): cx18: Fix YUV capture so that encoder passes a single frame per transfer 
Fix YUV capture such that the encoder will pass one frame per transfer.  This
will allow the application to maintain frame alignment when a transfer from
the encoder is missed due to high system latency in service the CX23418 IRQ.

Also force YUV buffer sizes to be specified in multiples of 33.75 kB, the
smalled amount of buffer sizes need to store a complete set of HM12 4:2:0
macroblocks specifying 32 lines of the frame.  A full 60Hz/525 line
screen requires 15 * 33.75 kB per frame and a full 50Hz/625 line screen
requires 18 * 33.75 kB per frame so the default buffer size is 3 * 33.75 kB,
requiring exactly 5 or 6 buffers per MDL respectively.  The bytes needed per
frame and hence MDL need not be the bytes in an integer number of buffers.
However, if frame artifacts are seen with scaled screen sizes, the YUV buffer
size can be set 34 kB (33.75 kB) to get rid of the artifacts at the cost of more
copies between the kernel and userspace.

Signed-off-by: Andy Walls <awalls@radix.net>
Signed-off-by: Mauro Carvalho Chehab <mchehab@redhat.com>
2009-12-05 18:41:52 -02:00

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/*
* 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@radix.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/version.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 <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-device.h>
#include <media/tuner.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"
#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_LAST 7
#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
/* ======================================================================== */
/* ========================== 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)
/* 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 32
#define CX18_DEFAULT_ENC_YUV_BUFSIZE (CX18_UNIT_ENC_YUV_BUFSIZE * 3 / 1024 + 1)
/* Default VBI bufsize based on standards supported by card tuner for now */
#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)
/* Values for CX18_API_DEC_PLAYBACK_SPEED mpeg_frame_type_mask parameter: */
#define MPEG_FRAME_TYPE_IFRAME 1
#define MPEG_FRAME_TYPE_IFRAME_PFRAME 3
#define MPEG_FRAME_TYPE_ALL 7
#define CX18_MAX_PGM_INDEX (400)
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)
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_dvb {
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 four fields are always set, even if the stream
is not actually created. */
struct video_device *video_dev; /* NULL when stream not created */
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;
/* DVB / Digital Transport */
struct cx18_dvb dvb;
};
struct cx18_open_id {
u32 open_id;
int type;
enum v4l2_priority prio;
struct cx18 *cx;
};
/* 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_mpeg_params params;
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 */
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. */
u32 base_addr;
struct v4l2_prio_state prio;
u8 card_rev;
void __iomem *enc_mem, *reg_mem;
struct vbi_info vbi;
u32 pgm_info_offset;
u32 pgm_info_num;
u32 pgm_info_write_idx;
u32 pgm_info_read_idx;
struct v4l2_enc_idx_entry pgm_info[CX18_MAX_PGM_INDEX];
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 */
struct workqueue_struct *out_work_queue;
char out_workq_name[12]; /* "cx18-NN-out" */
/* 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];
/* 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) */
};
static inline struct cx18 *to_cx18(struct v4l2_device *v4l2_dev)
{
return container_of(v4l2_dev, struct cx18, v4l2_dev);
}
/* 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...) \
__v4l2_device_call_subdevs(&(cx)->v4l2_dev, \
!(hw) || (sd->grp_id & (hw)), o, f , ##args)
#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...) \
__v4l2_device_call_subdevs_until_err( \
&(cx)->v4l2_dev, !(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 */
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