projects / mirror_ubuntu-kernels.git / blame
| Commit | Line | Data |
|---|---|---|
| b2441318 | 1 | /* SPDX-License-Identifier: GPL-2.0 */ |
| 1da177e4 LT |
2 | /* |
| 3 | * pi1.h: Definitions for SGI PI1 parallel port | |
| 4 | */ | |
| 5 | ||
| 6 | #ifndef _SGI_PI1_H | |
| 7 | #define _SGI_PI1_H | |
| 8 | ||
| 9 | struct pi1_regs { | |
| 10 | u8 _data[3]; | |
| 11 | volatile u8 data; | |
| 12 | u8 _ctrl[3]; | |
| 13 | volatile u8 ctrl; | |
| 14 | #define PI1_CTRL_STROBE_N 0x01 | |
| 15 | #define PI1_CTRL_AFD_N 0x02 | |
| 16 | #define PI1_CTRL_INIT_N 0x04 | |
| 17 | #define PI1_CTRL_SLIN_N 0x08 | |
| 18 | #define PI1_CTRL_IRQ_ENA 0x10 | |
| 19 | #define PI1_CTRL_DIR 0x20 | |
| 20 | #define PI1_CTRL_SEL 0x40 | |
| 21 | u8 _status[3]; | |
| 22 | volatile u8 status; | |
| 23 | #define PI1_STAT_DEVID 0x03 /* bits 0-1 */ | |
| 24 | #define PI1_STAT_NOINK 0x04 /* SGI MODE only */ | |
| 25 | #define PI1_STAT_ERROR 0x08 | |
| 26 | #define PI1_STAT_ONLINE 0x10 | |
| 27 | #define PI1_STAT_PE 0x20 | |
| 28 | #define PI1_STAT_ACK 0x40 | |
| 29 | #define PI1_STAT_BUSY 0x80 | |
| 30 | u8 _dmactrl[3]; | |
| 31 | volatile u8 dmactrl; | |
| 70342287 RB |
32 | #define PI1_DMACTRL_FIFO_EMPTY 0x01 /* fifo empty R/O */ |
| 33 | #define PI1_DMACTRL_ABORT 0x02 /* reset DMA and internal fifo W/O */ | |
| 34 | #define PI1_DMACTRL_STDMODE 0x00 /* bits 2-3 */ | |
| 35 | #define PI1_DMACTRL_SGIMODE 0x04 /* bits 2-3 */ | |
| 36 | #define PI1_DMACTRL_RICOHMODE 0x08 /* bits 2-3 */ | |
| 37 | #define PI1_DMACTRL_HPMODE 0x0c /* bits 2-3 */ | |
| 38 | #define PI1_DMACTRL_BLKMODE 0x10 /* block mode */ | |
| 39 | #define PI1_DMACTRL_FIFO_CLEAR 0x20 /* clear fifo W/O */ | |
| 40 | #define PI1_DMACTRL_READ 0x40 /* read */ | |
| 41 | #define PI1_DMACTRL_RUN 0x80 /* pedal to the metal */ | |
| 1da177e4 LT |
42 | u8 _intstat[3]; |
| 43 | volatile u8 intstat; | |
| 44 | #define PI1_INTSTAT_ACK 0x04 | |
| 45 | #define PI1_INTSTAT_FEMPTY 0x08 | |
| 46 | #define PI1_INTSTAT_NOINK 0x10 | |
| 47 | #define PI1_INTSTAT_ONLINE 0x20 | |
| 48 | #define PI1_INTSTAT_ERR 0x40 | |
| 49 | #define PI1_INTSTAT_PE 0x80 | |
| 50 | u8 _intmask[3]; | |
| 51 | volatile u8 intmask; /* enabled low, reset high*/ | |
| 52 | #define PI1_INTMASK_ACK 0x04 | |
| 53 | #define PI1_INTMASK_FIFO_EMPTY 0x08 | |
| 54 | #define PI1_INTMASK_NOINK 0x10 | |
| 55 | #define PI1_INTMASK_ONLINE 0x20 | |
| 56 | #define PI1_INTMASK_ERR 0x40 | |
| 57 | #define PI1_INTMASK_PE 0x80 | |
| 58 | u8 _timer1[3]; | |
| 59 | volatile u8 timer1; | |
| 60 | #define PI1_TIME1 0x27 | |
| 61 | u8 _timer2[3]; | |
| 62 | volatile u8 timer2; | |
| 63 | #define PI1_TIME2 0x13 | |
| 64 | u8 _timer3[3]; | |
| 65 | volatile u8 timer3; | |
| 66 | #define PI1_TIME3 0x10 | |
| 67 | u8 _timer4[3]; | |
| 68 | volatile u8 timer4; | |
| 69 | #define PI1_TIME4 0x00 | |
| 70 | }; | |
| 71 | ||
| 72 | #endif |