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 #ifndef O_NONCAP
29 #define O_NONCAP O_TRUNC
30 #endif
31
32 #define MAX_GBUFFERS 2
33 #define FBUF_SIZE 0x190000
34
35 #ifdef __KERNEL__
36
37 struct saa7146_window
38 {
39 int x, y;
40 ushort width, height;
41 ushort bpp, bpl;
42 ushort swidth, sheight;
43 short cropx, cropy;
44 ushort cropwidth, cropheight;
45 unsigned long vidadr;
46 int color_fmt;
47 ushort depth;
48 };
49
50 /* Per-open data for handling multiple opens on one device */
51 struct device_open
52 {
53 int isopen;
54 int noncapturing;
55 struct saa7146 *dev;
56 };
57 #define MAX_OPENS 3
58
59 struct saa7146
60 {
61 struct video_device video_dev;
62 struct video_picture picture;
63 struct video_audio audio_dev;
64 struct video_info vidinfo;
65 int user;
66 int cap;
67 int capuser;
68 int irqstate; /* irq routine is state driven */
69 int writemode;
70 int playmode;
71 unsigned int nr;
72 unsigned long irq; /* IRQ used by SAA7146 card */
73 unsigned short id;
74 unsigned char revision;
75 unsigned char boardcfg[64]; /* 64 bytes of config from eeprom */
76 unsigned long saa7146_adr; /* bus address of IO mem from PCI BIOS */
77 struct saa7146_window win;
78 unsigned char __iomem *saa7146_mem; /* pointer to mapped IO memory */
79 struct device_open open_data[MAX_OPENS];
80 #define MAX_MARKS 16
81 /* for a/v sync */
82 int endmark[MAX_MARKS], endmarkhead, endmarktail;
83 u32 *dmaRPS1, *pageRPS1, *dmaRPS2, *pageRPS2, *dmavid1, *dmavid2,
84 *dmavid3, *dmaa1in, *dmaa1out, *dmaa2in, *dmaa2out,
85 *pagedebi, *pagevid1, *pagevid2, *pagevid3, *pagea1in,
86 *pagea1out, *pagea2in, *pagea2out;
87 wait_queue_head_t i2cq, debiq, audq, vidq;
88 u8 *vidbuf, *audbuf, *osdbuf, *dmadebi;
89 int audhead, vidhead, osdhead, audtail, vidtail, osdtail;
90 spinlock_t lock; /* the device lock */
91 };
92 #endif
93
94 #ifdef _ALPHA_SAA7146
95 #define saawrite(dat,adr) writel((dat), saa->saa7146_adr+(adr))
96 #define saaread(adr) readl(saa->saa7146_adr+(adr))
97 #else
98 #define saawrite(dat,adr) writel((dat), saa->saa7146_mem+(adr))
99 #define saaread(adr) readl(saa->saa7146_mem+(adr))
100 #endif
101
102 #define saaand(dat,adr) saawrite((dat) & saaread(adr), adr)
103 #define saaor(dat,adr) saawrite((dat) | saaread(adr), adr)
104 #define saaaor(dat,mask,adr) saawrite((dat) | ((mask) & saaread(adr)), adr)
105
106 /* bitmask of attached hardware found */
107 #define SAA7146_UNKNOWN 0x00000000
108 #define SAA7146_SAA7111 0x00000001
109 #define SAA7146_SAA7121 0x00000002
110 #define SAA7146_IBMMPEG 0x00000004
111
112 #endif
113
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