projects / linux-block.git / blame
| Commit | Line | Data |
|---|---|---|
| b2441318 | 1 | /* SPDX-License-Identifier: GPL-2.0 */ |
| f5e706ad SR |
2 | /* |
| 3 | * auxio.h: Definitions and code for the Auxiliary I/O register. | |
| 4 | * | |
| 5 | * Copyright (C) 1995 David S. Miller (davem@caip.rutgers.edu) | |
| 6 | */ | |
| 7 | #ifndef _SPARC_AUXIO_H | |
| 8 | #define _SPARC_AUXIO_H | |
| 9 | ||
| f5e706ad SR |
10 | #include <asm/vaddrs.h> |
| 11 | ||
| 12 | /* This register is an unsigned char in IO space. It does two things. | |
| 13 | * First, it is used to control the front panel LED light on machines | |
| 14 | * that have it (good for testing entry points to trap handlers and irq's) | |
| 15 | * Secondly, it controls various floppy drive parameters. | |
| 16 | */ | |
| 17 | #define AUXIO_ORMEIN 0xf0 /* All writes must set these bits. */ | |
| 18 | #define AUXIO_ORMEIN4M 0xc0 /* sun4m - All writes must set these bits. */ | |
| 19 | #define AUXIO_FLPY_DENS 0x20 /* Floppy density, high if set. Read only. */ | |
| 20 | #define AUXIO_FLPY_DCHG 0x10 /* A disk change occurred. Read only. */ | |
| 21 | #define AUXIO_EDGE_ON 0x10 /* sun4m - On means Jumper block is in. */ | |
| 22 | #define AUXIO_FLPY_DSEL 0x08 /* Drive select/start-motor. Write only. */ | |
| 23 | #define AUXIO_LINK_TEST 0x08 /* sun4m - On means TPE Carrier detect. */ | |
| 24 | ||
| 25 | /* Set the following to one, then zero, after doing a pseudo DMA transfer. */ | |
| 26 | #define AUXIO_FLPY_TCNT 0x04 /* Floppy terminal count. Write only. */ | |
| 27 | ||
| 28 | /* Set the following to zero to eject the floppy. */ | |
| 29 | #define AUXIO_FLPY_EJCT 0x02 /* Eject floppy disk. Write only. */ | |
| 30 | #define AUXIO_LED 0x01 /* On if set, off if unset. Read/Write */ | |
| 31 | ||
| 32 | #ifndef __ASSEMBLY__ | |
| 33 | ||
| 34 | /* | |
| 35 | * NOTE: these routines are implementation dependent-- | |
| 36 | * understand the hardware you are querying! | |
| 37 | */ | |
| f05a6865 SR |
38 | void set_auxio(unsigned char bits_on, unsigned char bits_off); |
| 39 | unsigned char get_auxio(void); /* .../asm/floppy.h */ | |
| f5e706ad SR |
40 | |
| 41 | /* | |
| 42 | * The following routines are provided for driver-compatibility | |
| 43 | * with sparc64 (primarily sunlance.c) | |
| 44 | */ | |
| 45 | ||
| 46 | #define AUXIO_LTE_ON 1 | |
| 47 | #define AUXIO_LTE_OFF 0 | |
| 48 | ||
| 49 | /* auxio_set_lte - Set Link Test Enable (TPE Link Detect) | |
| 50 | * | |
| 51 | * on - AUXIO_LTE_ON or AUXIO_LTE_OFF | |
| 52 | */ | |
| 53 | #define auxio_set_lte(on) \ | |
| 54 | do { \ | |
| 55 | if(on) { \ | |
| 56 | set_auxio(AUXIO_LINK_TEST, 0); \ | |
| 57 | } else { \ | |
| 58 | set_auxio(0, AUXIO_LINK_TEST); \ | |
| 59 | } \ | |
| 60 | } while (0) | |
| 61 | ||
| 62 | #define AUXIO_LED_ON 1 | |
| 63 | #define AUXIO_LED_OFF 0 | |
| 64 | ||
| 65 | /* auxio_set_led - Set system front panel LED | |
| 66 | * | |
| 67 | * on - AUXIO_LED_ON or AUXIO_LED_OFF | |
| 68 | */ | |
| 69 | #define auxio_set_led(on) \ | |
| 70 | do { \ | |
| 71 | if(on) { \ | |
| 72 | set_auxio(AUXIO_LED, 0); \ | |
| 73 | } else { \ | |
| 74 | set_auxio(0, AUXIO_LED); \ | |
| 75 | } \ | |
| 76 | } while (0) | |
| 77 | ||
| 78 | #endif /* !(__ASSEMBLY__) */ | |
| 79 | ||
| 80 | ||
| 81 | /* AUXIO2 (Power Off Control) */ | |
| d2aca8f9 | 82 | extern volatile u8 __iomem *auxio_power_register; |
| f5e706ad SR |
83 | |
| 84 | #define AUXIO_POWER_DETECT_FAILURE 32 | |
| 85 | #define AUXIO_POWER_CLEAR_FAILURE 2 | |
| 86 | #define AUXIO_POWER_OFF 1 | |
| 87 | ||
| 88 | ||
| 89 | #endif /* !(_SPARC_AUXIO_H) */ |