1 /*
2 saa7146.h - definitions philips saa7146 based cards
3 Copyright (C) 1999 Nathan Laredo (laredo@gnu.org)
4
5 This program is free software; you can redistribute it and/or modify
6 it under the terms of the GNU General Public License as published by
7 the Free Software Foundation; either version 2 of the License, or
8 (at your option) any later version.
9
10 This program is distributed in the hope that it will be useful,
11 but WITHOUT ANY WARRANTY; without even the implied warranty of
12 MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
13 GNU General Public License for more details.
14
15 You should have received a copy of the GNU General Public License
16 along with this program; if not, write to the Free Software
17 Foundation, Inc., 675 Mass Ave, Cambridge, MA 02139, USA.
18 */
19
20 #ifndef __SAA7146__
21 #define __SAA7146__
22
23 #define SAA7146_VERSION_CODE 0x000101
24
25 #include <linux/types.h>
26 #include <linux/wait.h>
27
28 #include <linux/videodev.h>
29
30 #ifndef O_NONCAP
31 #define O_NONCAP O_TRUNC
32 #endif
33
34 #define MAX_GBUFFERS 2
35 #define FBUF_SIZE 0x190000
36
37 #ifdef __KERNEL__
38
39 struct saa7146_window
40 {
41 int x, y;
42 ushort width, height;
43 ushort bpp, bpl;
44 ushort swidth, sheight;
45 short cropx, cropy;
46 ushort cropwidth, cropheight;
47 unsigned long vidadr;
48 int color_fmt;
49 ushort depth;
50 };
51
52 /* Per-open data for handling multiple opens on one device */
53 struct device_open
54 {
55 int isopen;
56 int noncapturing;
57 struct saa7146 *dev;
58 };
59 #define MAX_OPENS 3
60
61 struct saa7146
62 {
63 struct video_device video_dev;
64 struct video_picture picture;
65 struct video_audio audio_dev;
66 struct video_info vidinfo;
67 int user;
68 int cap;
69 int capuser;
70 int irqstate; /* irq routine is state driven */
71 int writemode;
72 int playmode;
73 unsigned int nr;
74 unsigned long irq; /* IRQ used by SAA7146 card */
75 unsigned short id;
76 struct pci_dev *dev;
77 unsigned char revision;
78 unsigned char boardcfg[64]; /* 64 bytes of config from eeprom */
79 unsigned long saa7146_adr; /* bus address of IO mem from PCI BIOS */
80 struct saa7146_window win;
81 unsigned char __iomem *saa7146_mem; /* pointer to mapped IO memory */
82 struct device_open open_data[MAX_OPENS];
83 #define MAX_MARKS 16
84 /* for a/v sync */
85 int endmark[MAX_MARKS], endmarkhead, endmarktail;
86 u32 *dmaRPS1, *pageRPS1, *dmaRPS2, *pageRPS2, *dmavid1, *dmavid2,
87 *dmavid3, *dmaa1in, *dmaa1out, *dmaa2in, *dmaa2out,
88 *pagedebi, *pagevid1, *pagevid2, *pagevid3, *pagea1in,
89 *pagea1out, *pagea2in, *pagea2out;
90 wait_queue_head_t i2cq, debiq, audq, vidq;
91 u8 *vidbuf, *audbuf, *osdbuf, *dmadebi;
92 int audhead, vidhead, osdhead, audtail, vidtail, osdtail;
93 spinlock_t lock; /* the device lock */
94 };
95 #endif
96
97 #ifdef _ALPHA_SAA7146
98 #define saawrite(dat,adr) writel((dat), saa->saa7146_adr+(adr))
99 #define saaread(adr) readl(saa->saa7146_adr+(adr))
100 #else
101 #define saawrite(dat,adr) writel((dat), saa->saa7146_mem+(adr))
102 #define saaread(adr) readl(saa->saa7146_mem+(adr))
103 #endif
104
105 #define saaand(dat,adr) saawrite((dat) & saaread(adr), adr)
106 #define saaor(dat,adr) saawrite((dat) | saaread(adr), adr)
107 #define saaaor(dat,mask,adr) saawrite((dat) | ((mask) & saaread(adr)), adr)
108
109 /* bitmask of attached hardware found */
110 #define SAA7146_UNKNOWN 0x00000000
111 #define SAA7146_SAA7111 0x00000001
112 #define SAA7146_SAA7121 0x00000002
113 #define SAA7146_IBMMPEG 0x00000004
114
115 #endif
116
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