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linux-zen-server/drivers/media/pci/cx18/cx18-driver.h

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2023-08-30 17:53:23 +02:00
/* SPDX-License-Identifier: GPL-2.0-or-later */
/*
* 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>
*/
#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/signal.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/i2c/ir-kbd-i2c.h>
#include "cx18-mailbox.h"
#include "cx18-av-core.h"
#include "cx23418.h"
/* DVB */
#include <media/demux.h>
#include <media/dmxdev.h>
#include <media/dvb_demux.h>
#include <media/dvb_frontend.h>
#include <media/dvb_net.h>
#include <media/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 endianness 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_head 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; /* v4l2_dev is 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 */
u32 v4l2_dev_caps; /* device capabilities */
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;
u32 vb_bytes_per_line;
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
*/
#define VBI_ACTIVE_SAMPLES 1444 /* 4 byte SAV + 720 Y + 720 U/V */
#define VBI_HBLANK_SAMPLES_60HZ 272 /* 4 byte EAV + 268 anc/fill */
#define 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...) \
v4l2_device_mask_call_all(&(cx)->v4l2_dev, 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_mask_call_until_err(&(cx)->v4l2_dev, 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 */