- /*
- ** asm-m68k/amigayle.h -- This header defines the registers of the gayle chip
- ** found on the Amiga 1200
- ** This information was found by disassembling card.resource,
- ** so the definitions may not be 100% correct
- ** anyone has an official doc ?
- **
- ** Copyright 1997 by Alain Malek
- **
- ** This file is subject to the terms and conditions of the GNU General Public
- ** License. See the file COPYING in the main directory of this archive
- ** for more details.
- **
- ** Created: 11/28/97 by Alain Malek
- */
- #ifndef _M68K_AMIGAYLE_H_
- #define _M68K_AMIGAYLE_H_
- #include <linux/types.h>
- #include <asm/amigahw.h>
- /* memory layout */
- #define GAYLE_RAM (0x600000+zTwoBase)
- #define GAYLE_RAMSIZE (0x400000)
- #define GAYLE_ATTRIBUTE (0xa00000+zTwoBase)
- #define GAYLE_ATTRIBUTESIZE (0x020000)
- #define GAYLE_IO (0xa20000+zTwoBase) /* 16bit and even 8bit registers */
- #define GAYLE_IOSIZE (0x010000)
- #define GAYLE_IO_8BITODD (0xa30000+zTwoBase) /* odd 8bit registers */
- /* offset for accessing odd IO registers */
- #define GAYLE_ODD (GAYLE_IO_8BITODD-GAYLE_IO-1)
- /* GAYLE registers */
- struct GAYLE {
- u_char cardstatus;
- u_char pad0[0x1000-1];
- u_char intreq;
- u_char pad1[0x1000-1];
- u_char inten;
- u_char pad2[0x1000-1];
- u_char config;
- u_char pad3[0x1000-1];
- };
- #define GAYLE_ADDRESS (0xda8000) /* gayle main registers base address */
- #define GAYLE_RESET (0xa40000) /* write 0x00 to start reset,
- read 1 byte to stop reset */
- #define gayle (*(volatile struct GAYLE *)(zTwoBase+GAYLE_ADDRESS))
- #define gayle_reset (*(volatile u_char *)(zTwoBase+GAYLE_RESET))
- #define gayle_attribute ((volatile u_char *)(GAYLE_ATTRIBUTE))
- #if 0
- #define gayle_inb(a) readb( GAYLE_IO+(a)+(((a)&1)*GAYLE_ODD) )
- #define gayle_outb(v,a) writeb( v, GAYLE_IO+(a)+(((a)&1)*GAYLE_ODD) )
- #define gayle_inw(a) readw( GAYLE_IO+(a) )
- #define gayle_outw(v,a) writew( v, GAYLE_IO+(a) )
- #endif
- /* GAYLE_CARDSTATUS bit def */
- #define GAYLE_CS_CCDET 0x40 /* credit card detect */
- #define GAYLE_CS_BVD1 0x20 /* battery voltage detect 1 */
- #define GAYLE_CS_SC 0x20 /* credit card status change */
- #define GAYLE_CS_BVD2 0x10 /* battery voltage detect 2 */
- #define GAYLE_CS_DA 0x10 /* digital audio */
- #define GAYLE_CS_WR 0x08 /* write enable (1 == enabled) */
- #define GAYLE_CS_BSY 0x04 /* credit card busy */
- #define GAYLE_CS_IRQ 0x04 /* interrupt request */
- /* GAYLE_IRQ bit def */
- #define GAYLE_IRQ_IDE 0x80
- #define GAYLE_IRQ_CCDET 0x40
- #define GAYLE_IRQ_BVD1 0x20
- #define GAYLE_IRQ_SC 0x20
- #define GAYLE_IRQ_BVD2 0x10
- #define GAYLE_IRQ_DA 0x10
- #define GAYLE_IRQ_WR 0x08
- #define GAYLE_IRQ_BSY 0x04
- #define GAYLE_IRQ_IRQ 0x04
- #define GAYLE_IRQ_IDEACK1 0x02
- #define GAYLE_IRQ_IDEACK0 0x01
- /* GAYLE_CONFIG bit def
- (bit 0-1 for program voltage, bit 2-3 for access speed */
- #define GAYLE_CFG_0V 0x00
- #define GAYLE_CFG_5V 0x01
- #define GAYLE_CFG_12V 0x02
- #define GAYLE_CFG_100NS 0x08
- #define GAYLE_CFG_150NS 0x04
- #define GAYLE_CFG_250NS 0x00
- #define GAYLE_CFG_720NS 0x0c
- #endif /* asm-m68k/amigayle.h */