116 строки
3.3 KiB
C
116 строки
3.3 KiB
C
/*
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saa7146.h - definitions philips saa7146 based cards
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Copyright (C) 1999 Nathan Laredo (laredo@gnu.org)
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This program is free software; you can redistribute it and/or modify
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it under the terms of the GNU General Public License as published by
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the Free Software Foundation; either version 2 of the License, or
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(at your option) any later version.
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This program is distributed in the hope that it will be useful,
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but WITHOUT ANY WARRANTY; without even the implied warranty of
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MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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GNU General Public License for more details.
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You should have received a copy of the GNU General Public License
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along with this program; if not, write to the Free Software
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Foundation, Inc., 675 Mass Ave, Cambridge, MA 02139, USA.
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*/
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#ifndef __SAA7146__
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#define __SAA7146__
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#define SAA7146_VERSION_CODE 0x000101
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#include <linux/types.h>
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#include <linux/wait.h>
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#include <linux/videodev.h>
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#ifndef O_NONCAP
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#define O_NONCAP O_TRUNC
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#endif
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#define MAX_GBUFFERS 2
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#define FBUF_SIZE 0x190000
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#ifdef __KERNEL__
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struct saa7146_window
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{
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int x, y;
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ushort width, height;
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ushort bpp, bpl;
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ushort swidth, sheight;
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short cropx, cropy;
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ushort cropwidth, cropheight;
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unsigned long vidadr;
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int color_fmt;
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ushort depth;
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};
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/* Per-open data for handling multiple opens on one device */
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struct device_open
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{
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int isopen;
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int noncapturing;
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struct saa7146 *dev;
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};
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#define MAX_OPENS 3
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struct saa7146
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{
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struct video_device video_dev;
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struct video_picture picture;
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struct video_audio audio_dev;
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struct video_info vidinfo;
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int user;
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int cap;
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int capuser;
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int irqstate; /* irq routine is state driven */
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int writemode;
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int playmode;
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unsigned int nr;
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unsigned long irq; /* IRQ used by SAA7146 card */
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unsigned short id;
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struct pci_dev *dev;
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unsigned char revision;
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unsigned char boardcfg[64]; /* 64 bytes of config from eeprom */
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unsigned long saa7146_adr; /* bus address of IO mem from PCI BIOS */
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struct saa7146_window win;
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unsigned char __iomem *saa7146_mem; /* pointer to mapped IO memory */
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struct device_open open_data[MAX_OPENS];
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#define MAX_MARKS 16
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/* for a/v sync */
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int endmark[MAX_MARKS], endmarkhead, endmarktail;
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u32 *dmaRPS1, *pageRPS1, *dmaRPS2, *pageRPS2, *dmavid1, *dmavid2,
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*dmavid3, *dmaa1in, *dmaa1out, *dmaa2in, *dmaa2out,
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*pagedebi, *pagevid1, *pagevid2, *pagevid3, *pagea1in,
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*pagea1out, *pagea2in, *pagea2out;
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wait_queue_head_t i2cq, debiq, audq, vidq;
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u8 *vidbuf, *audbuf, *osdbuf, *dmadebi;
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int audhead, vidhead, osdhead, audtail, vidtail, osdtail;
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spinlock_t lock; /* the device lock */
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};
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#endif
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#ifdef _ALPHA_SAA7146
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#define saawrite(dat,adr) writel((dat), saa->saa7146_adr+(adr))
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#define saaread(adr) readl(saa->saa7146_adr+(adr))
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#else
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#define saawrite(dat,adr) writel((dat), saa->saa7146_mem+(adr))
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#define saaread(adr) readl(saa->saa7146_mem+(adr))
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#endif
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#define saaand(dat,adr) saawrite((dat) & saaread(adr), adr)
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#define saaor(dat,adr) saawrite((dat) | saaread(adr), adr)
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#define saaaor(dat,mask,adr) saawrite((dat) | ((mask) & saaread(adr)), adr)
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/* bitmask of attached hardware found */
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#define SAA7146_UNKNOWN 0x00000000
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#define SAA7146_SAA7111 0x00000001
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#define SAA7146_SAA7121 0x00000002
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#define SAA7146_IBMMPEG 0x00000004
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#endif
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