saa7146.h
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上传日期:2013-02-24
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- /*
- saa7146.h - definitions philips saa7146 based cards
- Copyright (C) 1999 Nathan Laredo (laredo@gnu.org)
-
- 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., 675 Mass Ave, Cambridge, MA 02139, USA.
- */
- #ifndef __SAA7146__
- #define __SAA7146__
- #define SAA7146_VERSION_CODE 0x000101
- #include <linux/types.h>
- #include <linux/wait.h>
- #include <linux/i2c.h>
- #include <linux/videodev.h>
- #ifndef O_NONCAP
- #define O_NONCAP O_TRUNC
- #endif
- #define MAX_GBUFFERS 2
- #define FBUF_SIZE 0x190000
- #ifdef __KERNEL__
- struct saa7146_window
- {
- int x, y;
- ushort width, height;
- ushort bpp, bpl;
- ushort swidth, sheight;
- short cropx, cropy;
- ushort cropwidth, cropheight;
- unsigned long vidadr;
- int color_fmt;
- ushort depth;
- };
- /* Per-open data for handling multiple opens on one device */
- struct device_open
- {
- int isopen;
- int noncapturing;
- struct saa7146 *dev;
- };
- #define MAX_OPENS 3
- struct saa7146
- {
- struct video_device video_dev;
- struct video_picture picture;
- struct video_audio audio_dev;
- struct video_info vidinfo;
- int user;
- int cap;
- int capuser;
- int irqstate; /* irq routine is state driven */
- int writemode;
- int playmode;
- unsigned int nr;
- unsigned long irq; /* IRQ used by SAA7146 card */
- unsigned short id;
- struct i2c_bus i2c;
- struct pci_dev *dev;
- unsigned char revision;
- unsigned char boardcfg[64]; /* 64 bytes of config from eeprom */
- unsigned long saa7146_adr; /* bus address of IO mem from PCI BIOS */
- struct saa7146_window win;
- unsigned char *saa7146_mem; /* pointer to mapped IO memory */
- struct device_open open_data[MAX_OPENS];
- #define MAX_MARKS 16
- /* for a/v sync */
- int endmark[MAX_MARKS], endmarkhead, endmarktail;
- u32 *dmaRPS1, *pageRPS1, *dmaRPS2, *pageRPS2, *dmavid1, *dmavid2,
- *dmavid3, *dmaa1in, *dmaa1out, *dmaa2in, *dmaa2out,
- *pagedebi, *pagevid1, *pagevid2, *pagevid3, *pagea1in,
- *pagea1out, *pagea2in, *pagea2out;
- wait_queue_head_t i2cq, debiq, audq, vidq;
- u8 *vidbuf, *audbuf, *osdbuf, *dmadebi;
- int audhead, vidhead, osdhead, audtail, vidtail, osdtail;
- spinlock_t lock; /* the device lock */
- };
- #endif
- #ifdef _ALPHA_SAA7146
- #define saawrite(dat,adr) writel((dat),(char *) (saa->saa7146_adr+(adr)))
- #define saaread(adr) readl(saa->saa7146_adr+(adr))
- #else
- #define saawrite(dat,adr) writel((dat), (char *) (saa->saa7146_mem+(adr)))
- #define saaread(adr) readl(saa->saa7146_mem+(adr))
- #endif
- #define saaand(dat,adr) saawrite((dat) & saaread(adr), adr)
- #define saaor(dat,adr) saawrite((dat) | saaread(adr), adr)
- #define saaaor(dat,mask,adr) saawrite((dat) | ((mask) & saaread(adr)), adr)
- /* bitmask of attached hardware found */
- #define SAA7146_UNKNOWN 0x00000000
- #define SAA7146_SAA7111 0x00000001
- #define SAA7146_SAA7121 0x00000002
- #define SAA7146_IBMMPEG 0x00000004
- #endif