1*b2441318SGreg Kroah-Hartman /* SPDX-License-Identifier: GPL-2.0 */ 2a439fe51SSam Ravnborg /* 3a439fe51SSam Ravnborg * auxio.h: Definitions and code for the Auxiliary I/O register. 4a439fe51SSam Ravnborg * 5a439fe51SSam Ravnborg * Copyright (C) 1995 David S. Miller (davem@caip.rutgers.edu) 6a439fe51SSam Ravnborg */ 7a439fe51SSam Ravnborg #ifndef _SPARC_AUXIO_H 8a439fe51SSam Ravnborg #define _SPARC_AUXIO_H 9a439fe51SSam Ravnborg 10a439fe51SSam Ravnborg #include <asm/vaddrs.h> 11a439fe51SSam Ravnborg 12a439fe51SSam Ravnborg /* This register is an unsigned char in IO space. It does two things. 13a439fe51SSam Ravnborg * First, it is used to control the front panel LED light on machines 14a439fe51SSam Ravnborg * that have it (good for testing entry points to trap handlers and irq's) 15a439fe51SSam Ravnborg * Secondly, it controls various floppy drive parameters. 16a439fe51SSam Ravnborg */ 17a439fe51SSam Ravnborg #define AUXIO_ORMEIN 0xf0 /* All writes must set these bits. */ 18a439fe51SSam Ravnborg #define AUXIO_ORMEIN4M 0xc0 /* sun4m - All writes must set these bits. */ 19a439fe51SSam Ravnborg #define AUXIO_FLPY_DENS 0x20 /* Floppy density, high if set. Read only. */ 20a439fe51SSam Ravnborg #define AUXIO_FLPY_DCHG 0x10 /* A disk change occurred. Read only. */ 21a439fe51SSam Ravnborg #define AUXIO_EDGE_ON 0x10 /* sun4m - On means Jumper block is in. */ 22a439fe51SSam Ravnborg #define AUXIO_FLPY_DSEL 0x08 /* Drive select/start-motor. Write only. */ 23a439fe51SSam Ravnborg #define AUXIO_LINK_TEST 0x08 /* sun4m - On means TPE Carrier detect. */ 24a439fe51SSam Ravnborg 25a439fe51SSam Ravnborg /* Set the following to one, then zero, after doing a pseudo DMA transfer. */ 26a439fe51SSam Ravnborg #define AUXIO_FLPY_TCNT 0x04 /* Floppy terminal count. Write only. */ 27a439fe51SSam Ravnborg 28a439fe51SSam Ravnborg /* Set the following to zero to eject the floppy. */ 29a439fe51SSam Ravnborg #define AUXIO_FLPY_EJCT 0x02 /* Eject floppy disk. Write only. */ 30a439fe51SSam Ravnborg #define AUXIO_LED 0x01 /* On if set, off if unset. Read/Write */ 31a439fe51SSam Ravnborg 32a439fe51SSam Ravnborg #ifndef __ASSEMBLY__ 33a439fe51SSam Ravnborg 34a439fe51SSam Ravnborg /* 35a439fe51SSam Ravnborg * NOTE: these routines are implementation dependent-- 36a439fe51SSam Ravnborg * understand the hardware you are querying! 37a439fe51SSam Ravnborg */ 38f05a6865SSam Ravnborg void set_auxio(unsigned char bits_on, unsigned char bits_off); 39f05a6865SSam Ravnborg unsigned char get_auxio(void); /* .../asm/floppy.h */ 40a439fe51SSam Ravnborg 41a439fe51SSam Ravnborg /* 42a439fe51SSam Ravnborg * The following routines are provided for driver-compatibility 43a439fe51SSam Ravnborg * with sparc64 (primarily sunlance.c) 44a439fe51SSam Ravnborg */ 45a439fe51SSam Ravnborg 46a439fe51SSam Ravnborg #define AUXIO_LTE_ON 1 47a439fe51SSam Ravnborg #define AUXIO_LTE_OFF 0 48a439fe51SSam Ravnborg 49a439fe51SSam Ravnborg /* auxio_set_lte - Set Link Test Enable (TPE Link Detect) 50a439fe51SSam Ravnborg * 51a439fe51SSam Ravnborg * on - AUXIO_LTE_ON or AUXIO_LTE_OFF 52a439fe51SSam Ravnborg */ 53a439fe51SSam Ravnborg #define auxio_set_lte(on) \ 54a439fe51SSam Ravnborg do { \ 55a439fe51SSam Ravnborg if(on) { \ 56a439fe51SSam Ravnborg set_auxio(AUXIO_LINK_TEST, 0); \ 57a439fe51SSam Ravnborg } else { \ 58a439fe51SSam Ravnborg set_auxio(0, AUXIO_LINK_TEST); \ 59a439fe51SSam Ravnborg } \ 60a439fe51SSam Ravnborg } while (0) 61a439fe51SSam Ravnborg 62a439fe51SSam Ravnborg #define AUXIO_LED_ON 1 63a439fe51SSam Ravnborg #define AUXIO_LED_OFF 0 64a439fe51SSam Ravnborg 65a439fe51SSam Ravnborg /* auxio_set_led - Set system front panel LED 66a439fe51SSam Ravnborg * 67a439fe51SSam Ravnborg * on - AUXIO_LED_ON or AUXIO_LED_OFF 68a439fe51SSam Ravnborg */ 69a439fe51SSam Ravnborg #define auxio_set_led(on) \ 70a439fe51SSam Ravnborg do { \ 71a439fe51SSam Ravnborg if(on) { \ 72a439fe51SSam Ravnborg set_auxio(AUXIO_LED, 0); \ 73a439fe51SSam Ravnborg } else { \ 74a439fe51SSam Ravnborg set_auxio(0, AUXIO_LED); \ 75a439fe51SSam Ravnborg } \ 76a439fe51SSam Ravnborg } while (0) 77a439fe51SSam Ravnborg 78a439fe51SSam Ravnborg #endif /* !(__ASSEMBLY__) */ 79a439fe51SSam Ravnborg 80a439fe51SSam Ravnborg 81a439fe51SSam Ravnborg /* AUXIO2 (Power Off Control) */ 82d2aca8f9SSam Ravnborg extern volatile u8 __iomem *auxio_power_register; 83a439fe51SSam Ravnborg 84a439fe51SSam Ravnborg #define AUXIO_POWER_DETECT_FAILURE 32 85a439fe51SSam Ravnborg #define AUXIO_POWER_CLEAR_FAILURE 2 86a439fe51SSam Ravnborg #define AUXIO_POWER_OFF 1 87a439fe51SSam Ravnborg 88a439fe51SSam Ravnborg 89a439fe51SSam Ravnborg #endif /* !(_SPARC_AUXIO_H) */ 90