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Commit | Line | Data |
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1da177e4 LT |
1 | /* |
2 | * pi1.h: Definitions for SGI PI1 parallel port | |
3 | */ | |
4 | ||
5 | #ifndef _SGI_PI1_H | |
6 | #define _SGI_PI1_H | |
7 | ||
8 | struct pi1_regs { | |
9 | u8 _data[3]; | |
10 | volatile u8 data; | |
11 | u8 _ctrl[3]; | |
12 | volatile u8 ctrl; | |
13 | #define PI1_CTRL_STROBE_N 0x01 | |
14 | #define PI1_CTRL_AFD_N 0x02 | |
15 | #define PI1_CTRL_INIT_N 0x04 | |
16 | #define PI1_CTRL_SLIN_N 0x08 | |
17 | #define PI1_CTRL_IRQ_ENA 0x10 | |
18 | #define PI1_CTRL_DIR 0x20 | |
19 | #define PI1_CTRL_SEL 0x40 | |
20 | u8 _status[3]; | |
21 | volatile u8 status; | |
22 | #define PI1_STAT_DEVID 0x03 /* bits 0-1 */ | |
23 | #define PI1_STAT_NOINK 0x04 /* SGI MODE only */ | |
24 | #define PI1_STAT_ERROR 0x08 | |
25 | #define PI1_STAT_ONLINE 0x10 | |
26 | #define PI1_STAT_PE 0x20 | |
27 | #define PI1_STAT_ACK 0x40 | |
28 | #define PI1_STAT_BUSY 0x80 | |
29 | u8 _dmactrl[3]; | |
30 | volatile u8 dmactrl; | |
70342287 RB |
31 | #define PI1_DMACTRL_FIFO_EMPTY 0x01 /* fifo empty R/O */ |
32 | #define PI1_DMACTRL_ABORT 0x02 /* reset DMA and internal fifo W/O */ | |
33 | #define PI1_DMACTRL_STDMODE 0x00 /* bits 2-3 */ | |
34 | #define PI1_DMACTRL_SGIMODE 0x04 /* bits 2-3 */ | |
35 | #define PI1_DMACTRL_RICOHMODE 0x08 /* bits 2-3 */ | |
36 | #define PI1_DMACTRL_HPMODE 0x0c /* bits 2-3 */ | |
37 | #define PI1_DMACTRL_BLKMODE 0x10 /* block mode */ | |
38 | #define PI1_DMACTRL_FIFO_CLEAR 0x20 /* clear fifo W/O */ | |
39 | #define PI1_DMACTRL_READ 0x40 /* read */ | |
40 | #define PI1_DMACTRL_RUN 0x80 /* pedal to the metal */ | |
1da177e4 LT |
41 | u8 _intstat[3]; |
42 | volatile u8 intstat; | |
43 | #define PI1_INTSTAT_ACK 0x04 | |
44 | #define PI1_INTSTAT_FEMPTY 0x08 | |
45 | #define PI1_INTSTAT_NOINK 0x10 | |
46 | #define PI1_INTSTAT_ONLINE 0x20 | |
47 | #define PI1_INTSTAT_ERR 0x40 | |
48 | #define PI1_INTSTAT_PE 0x80 | |
49 | u8 _intmask[3]; | |
50 | volatile u8 intmask; /* enabled low, reset high*/ | |
51 | #define PI1_INTMASK_ACK 0x04 | |
52 | #define PI1_INTMASK_FIFO_EMPTY 0x08 | |
53 | #define PI1_INTMASK_NOINK 0x10 | |
54 | #define PI1_INTMASK_ONLINE 0x20 | |
55 | #define PI1_INTMASK_ERR 0x40 | |
56 | #define PI1_INTMASK_PE 0x80 | |
57 | u8 _timer1[3]; | |
58 | volatile u8 timer1; | |
59 | #define PI1_TIME1 0x27 | |
60 | u8 _timer2[3]; | |
61 | volatile u8 timer2; | |
62 | #define PI1_TIME2 0x13 | |
63 | u8 _timer3[3]; | |
64 | volatile u8 timer3; | |
65 | #define PI1_TIME3 0x10 | |
66 | u8 _timer4[3]; | |
67 | volatile u8 timer4; | |
68 | #define PI1_TIME4 0x00 | |
69 | }; | |
70 | ||
71 | #endif |