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