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|
/*
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
#define pr_fmt(fmt) KBUILD_MODNAME ": " fmt
/* Internal header for ivtv project:
* Driver for the cx23415/6 chip.
* Author: Kevin Thayer (nufan_wfk at yahoo.com)
* License: GPL
*
* -----
* MPG600/MPG160 support by T.Adachi <tadachi@tadachi-net.com>
* and Takeru KOMORIYA<komoriya@paken.org>
*
* AVerMedia M179 GPIO info by Chris Pinkham <cpinkham@bc2va.org>
* using information provided by Jiun-Kuei Jung @ AVerMedia.
*/
#include <linux/module.h>
#include <linux/init.h>
#include <linux/delay.h>
#include <linux/sched/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/scatterlist.h>
#include <linux/kthread.h>
#include <linux/mutex.h>
#include <linux/slab.h>
#include <linux/uaccess.h>
#include <asm/byteorder.h>
#include <linux/dvb/video.h>
#include <linux/dvb/audio.h>
#include <media/v4l2-common.h>
#include <media/v4l2-ioctl.h>
#include <media/v4l2-ctrls.h>
#include <media/v4l2-device.h>
#include <media/v4l2-fh.h>
#include <media/tuner.h>
#include <media/drv-intf/cx2341x.h>
#include <media/i2c/ir-kbd-i2c.h>
#include <linux/ivtv.h>
/* Memory layout */
#define IVTV_ENCODER_OFFSET 0x00000000
#define IVTV_ENCODER_SIZE 0x00800000 /* Total size is 0x01000000, but only first half is used */
#define IVTV_DECODER_OFFSET 0x01000000
#define IVTV_DECODER_SIZE 0x00800000 /* Total size is 0x01000000, but only first half is used */
#define IVTV_REG_OFFSET 0x02000000
#define IVTV_REG_SIZE 0x00010000
/* Maximum ivtv driver instances. Some people have a huge number of
capture cards, so set this to a high value. */
#define IVTV_MAX_CARDS 32
#define IVTV_ENC_STREAM_TYPE_MPG 0
#define IVTV_ENC_STREAM_TYPE_YUV 1
#define IVTV_ENC_STREAM_TYPE_VBI 2
#define IVTV_ENC_STREAM_TYPE_PCM 3
#define IVTV_ENC_STREAM_TYPE_RAD 4
#define IVTV_DEC_STREAM_TYPE_MPG 5
#define IVTV_DEC_STREAM_TYPE_VBI 6
#define IVTV_DEC_STREAM_TYPE_VOUT 7
#define IVTV_DEC_STREAM_TYPE_YUV 8
#define IVTV_MAX_STREAMS 9
#define IVTV_DMA_SG_OSD_ENT (2883584/PAGE_SIZE) /* sg entities */
/* DMA Registers */
#define IVTV_REG_DMAXFER (0x0000)
#define IVTV_REG_DMASTATUS (0x0004)
#define IVTV_REG_DECDMAADDR (0x0008)
#define IVTV_REG_ENCDMAADDR (0x000c)
#define IVTV_REG_DMACONTROL (0x0010)
#define IVTV_REG_IRQSTATUS (0x0040)
#define IVTV_REG_IRQMASK (0x0048)
/* Setup Registers */
#define IVTV_REG_ENC_SDRAM_REFRESH (0x07F8)
#define IVTV_REG_ENC_SDRAM_PRECHARGE (0x07FC)
#define IVTV_REG_DEC_SDRAM_REFRESH (0x08F8)
#define IVTV_REG_DEC_SDRAM_PRECHARGE (0x08FC)
#define IVTV_REG_VDM (0x2800)
#define IVTV_REG_AO (0x2D00)
#define IVTV_REG_BYTEFLUSH (0x2D24)
#define IVTV_REG_SPU (0x9050)
#define IVTV_REG_HW_BLOCKS (0x9054)
#define IVTV_REG_VPU (0x9058)
#define IVTV_REG_APU (0xA064)
/* Other registers */
#define IVTV_REG_DEC_LINE_FIELD (0x28C0)
/* debugging */
extern int ivtv_debug;
#ifdef CONFIG_VIDEO_ADV_DEBUG
extern int ivtv_fw_debug;
#endif
#define IVTV_DBGFLG_WARN (1 << 0)
#define IVTV_DBGFLG_INFO (1 << 1)
#define IVTV_DBGFLG_MB (1 << 2)
#define IVTV_DBGFLG_IOCTL (1 << 3)
#define IVTV_DBGFLG_FILE (1 << 4)
#define IVTV_DBGFLG_DMA (1 << 5)
#define IVTV_DBGFLG_IRQ (1 << 6)
#define IVTV_DBGFLG_DEC (1 << 7)
#define IVTV_DBGFLG_YUV (1 << 8)
#define IVTV_DBGFLG_I2C (1 << 9)
/* Flag to turn on high volume debugging */
#define IVTV_DBGFLG_HIGHVOL (1 << 10)
#define IVTV_DEBUG(x, type, fmt, args...) \
do { \
if ((x) & ivtv_debug) \
v4l2_info(&itv->v4l2_dev, " " type ": " fmt , ##args); \
} while (0)
#define IVTV_DEBUG_WARN(fmt, args...) IVTV_DEBUG(IVTV_DBGFLG_WARN, "warn", fmt , ## args)
#define IVTV_DEBUG_INFO(fmt, args...) IVTV_DEBUG(IVTV_DBGFLG_INFO, "info", fmt , ## args)
#define IVTV_DEBUG_MB(fmt, args...) IVTV_DEBUG(IVTV_DBGFLG_MB, "mb", fmt , ## args)
#define IVTV_DEBUG_DMA(fmt, args...) IVTV_DEBUG(IVTV_DBGFLG_DMA, "dma", fmt , ## args)
#define IVTV_DEBUG_IOCTL(fmt, args...) IVTV_DEBUG(IVTV_DBGFLG_IOCTL, "ioctl", fmt , ## args)
#define IVTV_DEBUG_FILE(fmt, args...) IVTV_DEBUG(IVTV_DBGFLG_FILE, "file", fmt , ## args)
#define IVTV_DEBUG_I2C(fmt, args...) IVTV_DEBUG(IVTV_DBGFLG_I2C, "i2c", fmt , ## args)
#define IVTV_DEBUG_IRQ(fmt, args...) IVTV_DEBUG(IVTV_DBGFLG_IRQ, "irq", fmt , ## args)
#define IVTV_DEBUG_DEC(fmt, args...) IVTV_DEBUG(IVTV_DBGFLG_DEC, "dec", fmt , ## args)
#define IVTV_DEBUG_YUV(fmt, args...) IVTV_DEBUG(IVTV_DBGFLG_YUV, "yuv", fmt , ## args)
#define IVTV_DEBUG_HIGH_VOL(x, type, fmt, args...) \
do { \
if (((x) & ivtv_debug) && (ivtv_debug & IVTV_DBGFLG_HIGHVOL)) \
v4l2_info(&itv->v4l2_dev, " " type ": " fmt , ##args); \
} while (0)
#define IVTV_DEBUG_HI_WARN(fmt, args...) IVTV_DEBUG_HIGH_VOL(IVTV_DBGFLG_WARN, "warn", fmt , ## args)
#define IVTV_DEBUG_HI_INFO(fmt, args...) IVTV_DEBUG_HIGH_VOL(IVTV_DBGFLG_INFO, "info", fmt , ## args)
#define IVTV_DEBUG_HI_MB(fmt, args...) IVTV_DEBUG_HIGH_VOL(IVTV_DBGFLG_MB, "mb", fmt , ## args)
#define IVTV_DEBUG_HI_DMA(fmt, args...) IVTV_DEBUG_HIGH_VOL(IVTV_DBGFLG_DMA, "dma", fmt , ## args)
#define IVTV_DEBUG_HI_IOCTL(fmt, args...) IVTV_DEBUG_HIGH_VOL(IVTV_DBGFLG_IOCTL, "ioctl", fmt , ## args)
#define IVTV_DEBUG_HI_FILE(fmt, args...) IVTV_DEBUG_HIGH_VOL(IVTV_DBGFLG_FILE, "file", fmt , ## args)
#define IVTV_DEBUG_HI_I2C(fmt, args...) IVTV_DEBUG_HIGH_VOL(IVTV_DBGFLG_I2C, "i2c", fmt , ## args)
#define IVTV_DEBUG_HI_IRQ(fmt, args...) IVTV_DEBUG_HIGH_VOL(IVTV_DBGFLG_IRQ, "irq", fmt , ## args)
#define IVTV_DEBUG_HI_DEC(fmt, args...) IVTV_DEBUG_HIGH_VOL(IVTV_DBGFLG_DEC, "dec", fmt , ## args)
#define IVTV_DEBUG_HI_YUV(fmt, args...) IVTV_DEBUG_HIGH_VOL(IVTV_DBGFLG_YUV, "yuv", fmt , ## args)
/* Standard kernel messages */
#define IVTV_ERR(fmt, args...) v4l2_err(&itv->v4l2_dev, fmt , ## args)
#define IVTV_WARN(fmt, args...) v4l2_warn(&itv->v4l2_dev, fmt , ## args)
#define IVTV_INFO(fmt, args...) v4l2_info(&itv->v4l2_dev, fmt , ## args)
/* output modes (cx23415 only) */
#define OUT_NONE 0
#define OUT_MPG 1
#define OUT_YUV 2
#define OUT_UDMA_YUV 3
#define OUT_PASSTHROUGH 4
#define IVTV_MAX_PGM_INDEX (400)
/* Default I2C SCL period in microseconds */
#define IVTV_DEFAULT_I2C_CLOCK_PERIOD 20
struct ivtv_options {
int kilobytes[IVTV_MAX_STREAMS]; /* size in kilobytes of each stream */
int cardtype; /* force card type on load */
int tuner; /* set tuner on load */
int radio; /* enable/disable radio */
int newi2c; /* new I2C algorithm */
int i2c_clock_period; /* period of SCL for I2C bus */
};
/* ivtv-specific mailbox template */
struct ivtv_mailbox {
u32 flags;
u32 cmd;
u32 retval;
u32 timeout;
u32 data[CX2341X_MBOX_MAX_DATA];
};
struct ivtv_api_cache {
unsigned long last_jiffies; /* when last command was issued */
u32 data[CX2341X_MBOX_MAX_DATA]; /* last sent api data */
};
struct ivtv_mailbox_data {
volatile struct ivtv_mailbox __iomem *mbox;
/* Bits 0-2 are for the encoder mailboxes, 0-1 are for the decoder mailboxes.
If the bit is set, then the corresponding mailbox is in use by the driver. */
unsigned long busy;
u8 max_mbox;
};
/* per-buffer bit flags */
#define IVTV_F_B_NEED_BUF_SWAP (1 << 0) /* this buffer should be byte swapped */
/* per-stream, s_flags */
#define IVTV_F_S_DMA_PENDING 0 /* this stream has pending DMA */
#define IVTV_F_S_DMA_HAS_VBI 1 /* the current DMA request also requests VBI data */
#define IVTV_F_S_NEEDS_DATA 2 /* this decoding stream needs more data */
#define IVTV_F_S_CLAIMED 3 /* this stream is claimed */
#define IVTV_F_S_STREAMING 4 /* the fw is decoding/encoding this stream */
#define IVTV_F_S_INTERNAL_USE 5 /* this stream is used internally (sliced VBI processing) */
#define IVTV_F_S_PASSTHROUGH 6 /* this stream is in passthrough mode */
#define IVTV_F_S_STREAMOFF 7 /* signal end of stream EOS */
#define IVTV_F_S_APPL_IO 8 /* this stream is used read/written by an application */
#define IVTV_F_S_PIO_PENDING 9 /* this stream has pending PIO */
#define IVTV_F_S_PIO_HAS_VBI 1 /* the current PIO request also requests VBI data */
/* per-ivtv, i_flags */
#define IVTV_F_I_DMA 0 /* DMA in progress */
#define IVTV_F_I_UDMA 1 /* UDMA in progress */
#define IVTV_F_I_UDMA_PENDING 2 /* UDMA pending */
#define IVTV_F_I_SPEED_CHANGE 3 /* a speed change is in progress */
#define IVTV_F_I_EOS 4 /* end of encoder stream reached */
#define IVTV_F_I_RADIO_USER 5 /* the radio tuner is selected */
#define IVTV_F_I_DIG_RST 6 /* reset digitizer */
#define IVTV_F_I_DEC_YUV 7 /* YUV instead of MPG is being decoded */
#define IVTV_F_I_UPDATE_CC 9 /* CC should be updated */
#define IVTV_F_I_UPDATE_WSS 10 /* WSS should be updated */
#define IVTV_F_I_UPDATE_VPS 11 /* VPS should be updated */
#define IVTV_F_I_DECODING_YUV 12 /* this stream is YUV frame decoding */
#define IVTV_F_I_ENC_PAUSED 13 /* the encoder is paused */
#define IVTV_F_I_VALID_DEC_TIMINGS 14 /* last_dec_timing is valid */
#define IVTV_F_I_HAVE_WORK 15 /* used in the interrupt handler: there is work to be done */
#define IVTV_F_I_WORK_HANDLER_VBI 16 /* there is work to be done for VBI */
#define IVTV_F_I_WORK_HANDLER_YUV 17 /* there is work to be done for YUV */
#define IVTV_F_I_WORK_HANDLER_PIO 18 /* there is work to be done for PIO */
#define IVTV_F_I_PIO 19 /* PIO in progress */
#define IVTV_F_I_DEC_PAUSED 20 /* the decoder is paused */
#define IVTV_F_I_INITED 21 /* set after first open */
#define IVTV_F_I_FAILED 22 /* set if first open failed */
#define IVTV_F_I_WORK_HANDLER_PCM 23 /* there is work to be done for PCM */
/* Event notifications */
#define IVTV_F_I_EV_DEC_STOPPED 28 /* decoder stopped event */
#define IVTV_F_I_EV_VSYNC 29 /* VSYNC event */
#define IVTV_F_I_EV_VSYNC_FIELD 30 /* VSYNC event field (0 = first, 1 = second field) */
#define IVTV_F_I_EV_VSYNC_ENABLED 31 /* VSYNC event enabled */
/* Scatter-Gather array element, used in DMA transfers */
struct ivtv_sg_element {
__le32 src;
__le32 dst;
__le32 size;
};
struct ivtv_sg_host_element {
u32 src;
u32 dst;
u32 size;
};
struct ivtv_user_dma {
struct mutex lock;
int page_count;
struct page *map[IVTV_DMA_SG_OSD_ENT];
/* Needed when dealing with highmem userspace buffers */
struct page *bouncemap[IVTV_DMA_SG_OSD_ENT];
/* Base Dev SG Array for cx23415/6 */
struct ivtv_sg_element SGarray[IVTV_DMA_SG_OSD_ENT];
dma_addr_t SG_handle;
int SG_length;
/* SG List of Buffers */
struct scatterlist SGlist[IVTV_DMA_SG_OSD_ENT];
};
struct ivtv_dma_page_info {
unsigned long uaddr;
unsigned long first;
unsigned long last;
unsigned int offset;
unsigned int tail;
int page_count;
};
struct ivtv_buffer {
struct list_head list;
dma_addr_t dma_handle;
unsigned short b_flags;
unsigned short dma_xfer_cnt;
char
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