| /* |
| * auxio.h: Definitions and code for the Auxiliary I/O register. |
| * |
| * Copyright (C) 1995 David S. Miller (davem@caip.rutgers.edu) |
| */ |
| #ifndef _SPARC_AUXIO_H |
| #define _SPARC_AUXIO_H |
| |
| #include <asm/system.h> |
| #include <asm/vaddrs.h> |
| |
| /* This register is an unsigned char in IO space. It does two things. |
| * First, it is used to control the front panel LED light on machines |
| * that have it (good for testing entry points to trap handlers and irq's) |
| * Secondly, it controls various floppy drive parameters. |
| */ |
| #define AUXIO_ORMEIN 0xf0 /* All writes must set these bits. */ |
| #define AUXIO_ORMEIN4M 0xc0 /* sun4m - All writes must set these bits. */ |
| #define AUXIO_FLPY_DENS 0x20 /* Floppy density, high if set. Read only. */ |
| #define AUXIO_FLPY_DCHG 0x10 /* A disk change occurred. Read only. */ |
| #define AUXIO_EDGE_ON 0x10 /* sun4m - On means Jumper block is in. */ |
| #define AUXIO_FLPY_DSEL 0x08 /* Drive select/start-motor. Write only. */ |
| #define AUXIO_LINK_TEST 0x08 /* sun4m - On means TPE Carrier detect. */ |
| |
| /* Set the following to one, then zero, after doing a pseudo DMA transfer. */ |
| #define AUXIO_FLPY_TCNT 0x04 /* Floppy terminal count. Write only. */ |
| |
| /* Set the following to zero to eject the floppy. */ |
| #define AUXIO_FLPY_EJCT 0x02 /* Eject floppy disk. Write only. */ |
| #define AUXIO_LED 0x01 /* On if set, off if unset. Read/Write */ |
| |
| #ifndef __ASSEMBLY__ |
| |
| /* |
| * NOTE: these routines are implementation dependent-- |
| * understand the hardware you are querying! |
| */ |
| extern void set_auxio(unsigned char bits_on, unsigned char bits_off); |
| extern unsigned char get_auxio(void); /* .../asm/floppy.h */ |
| |
| /* |
| * The following routines are provided for driver-compatibility |
| * with sparc64 (primarily sunlance.c) |
| */ |
| |
| #define AUXIO_LTE_ON 1 |
| #define AUXIO_LTE_OFF 0 |
| |
| /* auxio_set_lte - Set Link Test Enable (TPE Link Detect) |
| * |
| * on - AUXIO_LTE_ON or AUXIO_LTE_OFF |
| */ |
| #define auxio_set_lte(on) \ |
| do { \ |
| if(on) { \ |
| set_auxio(AUXIO_LINK_TEST, 0); \ |
| } else { \ |
| set_auxio(0, AUXIO_LINK_TEST); \ |
| } \ |
| } while (0) |
| |
| #define AUXIO_LED_ON 1 |
| #define AUXIO_LED_OFF 0 |
| |
| /* auxio_set_led - Set system front panel LED |
| * |
| * on - AUXIO_LED_ON or AUXIO_LED_OFF |
| */ |
| #define auxio_set_led(on) \ |
| do { \ |
| if(on) { \ |
| set_auxio(AUXIO_LED, 0); \ |
| } else { \ |
| set_auxio(0, AUXIO_LED); \ |
| } \ |
| } while (0) |
| |
| #endif /* !(__ASSEMBLY__) */ |
| |
| |
| /* AUXIO2 (Power Off Control) */ |
| extern __volatile__ unsigned char * auxio_power_register; |
| |
| #define AUXIO_POWER_DETECT_FAILURE 32 |
| #define AUXIO_POWER_CLEAR_FAILURE 2 |
| #define AUXIO_POWER_OFF 1 |
| |
| |
| #endif /* !(_SPARC_AUXIO_H) */ |
