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/i2c.h>
29 #include <linux/videodev.h>
30
31 #ifndef O_NONCAP
32 #define O_NONCAP O_TRUNC
33 #endif
34
35 #define MAX_GBUFFERS 2
36 #define FBUF_SIZE 0x190000
37
38 #ifdef __KERNEL__
39
40 struct saa7146_window
41 {
42 int x, y;
43 ushort width, height;
44 ushort bpp, bpl;
45 ushort swidth, sheight;
46 short cropx, cropy;
47 ushort cropwidth, cropheight;
48 unsigned long vidadr;
49 int color_fmt;
50 ushort depth;
51 };
52
53 /* Per-open data for handling multiple opens on one device */
54 struct device_open
55 {
56 int isopen;
57 int noncapturing;
58 struct saa7146 *dev;
59 };
60 #define MAX_OPENS 3
61
62 struct saa7146
63 {
64 struct video_device video_dev;
65 struct video_picture picture;
66 struct video_audio audio_dev;
67 struct video_info vidinfo;
68 int user;
69 int cap;
70 int capuser;
71 int irqstate; /* irq routine is state driven */
72 int writemode;
73 int playmode;
74 unsigned int nr;
75 unsigned long irq; /* IRQ used by SAA7146 card */
76 unsigned short id;
77 struct i2c_bus i2c;
78 struct pci_dev *dev;
79 unsigned char revision;
80 unsigned char boardcfg[64]; /* 64 bytes of config from eeprom */
81 unsigned long saa7146_adr; /* bus address of IO mem from PCI BIOS */
82 struct saa7146_window win;
83 unsigned char *saa7146_mem; /* pointer to mapped IO memory */
84 struct device_open open_data[MAX_OPENS];
85 #define MAX_MARKS 16
86 /* for a/v sync */
87 int endmark[MAX_MARKS], endmarkhead, endmarktail;
88 u32 *dmaRPS1, *pageRPS1, *dmaRPS2, *pageRPS2, *dmavid1, *dmavid2,
89 *dmavid3, *dmaa1in, *dmaa1out, *dmaa2in, *dmaa2out,
90 *pagedebi, *pagevid1, *pagevid2, *pagevid3, *pagea1in,
91 *pagea1out, *pagea2in, *pagea2out;
92 wait_queue_head_t i2cq, debiq, audq, vidq;
93 u8 *vidbuf, *audbuf, *osdbuf, *dmadebi;
94 int audhead, vidhead, osdhead, audtail, vidtail, osdtail;
95 spinlock_t lock; /* the device lock */
96 };
97 #endif
98
99 #ifdef _ALPHA_SAA7146
100 #define saawrite(dat,adr) writel((dat),(char *) (saa->saa7146_adr+(adr)))
101 #define saaread(adr) readl(saa->saa7146_adr+(adr))
102 #else
103 #define saawrite(dat,adr) writel((dat), (char *) (saa->saa7146_mem+(adr)))
104 #define saaread(adr) readl(saa->saa7146_mem+(adr))
105 #endif
106
107 #define saaand(dat,adr) saawrite((dat) & saaread(adr), adr)
108 #define saaor(dat,adr) saawrite((dat) | saaread(adr), adr)
109 #define saaaor(dat,mask,adr) saawrite((dat) | ((mask) & saaread(adr)), adr)
110
111 /* bitmask of attached hardware found */
112 #define SAA7146_UNKNOWN 0x00000000
113 #define SAA7146_SAA7111 0x00000001
114 #define SAA7146_SAA7121 0x00000002
115 #define SAA7146_IBMMPEG 0x00000004
116
117 #endif
118
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