patch-2.3.17 linux/arch/m68k/mac/via6522.h

• Lines: 132
• Date: Wed Dec 31 16:00:00 1969
• Orig file: v2.3.16/linux/arch/m68k/mac/via6522.h
• Orig date: Mon Oct 5 13:54:39 1998

diff -u --recursive --new-file v2.3.16/linux/arch/m68k/mac/via6522.h linux/arch/m68k/mac/via6522.h
@@ -1,131 +0,0 @@
-/*
- *	6522 Versatile Interface Adapter (VIA)
- *
- *	There are two of these on the Mac II. Some IRQ's are vectored
- *	via them as are assorted bits and bobs - eg rtc, adb. The picture
- *	is a bit incomplete as the Mac documentation doesnt cover this well
- */
- 
-#ifndef _ASM_VIA6522_H_
-#define _ASM_VIA6522_H_
-
-#define VIABASE		0x50F00000
-#define VIABASE2	0x50F02000
-
-/*
- *	Not all of these are true post MacII I think
- */
- 
-#define VIA1A_vSccWrReq	0x80	/* SCC write */
-#define VIA1A_vRev8	0x40	/* Revision 8 board ??? */
-#define VIA1A_vHeadSel	0x20	/* Head select for IWM */
-#define VIA1A_vOverlay	0x10
-#define VIA1A_vSync	0x08
-#define VIA1A_vVolume	0x07	/* Audio volume mask */
-	
-#define VIA1B_vSound	0x80	/* Audio on/off */
-#define VIA1B_vMystery	0x40
-#define VIA1B_vADBS2	0x20	/* ADB state 2 */
-#define VIA1B_vADBS1	0x10	/* ADB state 1 */
-#define VIA1B_vADBInt	0x08	/* ADB interrupt */
-#define VIA1B_vRTCEnb	0x04	/* Real time clock */
-#define VIA1B_vRTCClk	0x02
-#define VIA1B_vRTCData	0x01
-
-/*
- *	VIA2 A register is the interrupt lines raised off the nubus 
- *	slots.
- */
- 
-#define VIA2A_vIRQE	0x20
-#define VIA2A_vIRQD	0x10
-#define VIA2A_vIRQC	0x08
-#define VIA2A_vIRQB	0x04
-#define VIA2A_vIRQA	0x02
-#define VIA2A_vIRQ9	0x01
-
-/*
- *	Register B has the fun stuff in it
- */
-
-#define VIA2B_vMode32	0x08	/* 24/32bit switch - doubles as cache flush */
-#define VIA2B_vPower	0x04	/* Off switch */
-#define VIA2B_vBusLk	0x02	/* Nubus in use ?? */
-#define VIA2B_vCDis	0x01	/* Cache disable */
-
-/*
- *	The 6522 via is a 2MHz part, and needs a delay. MacOS seems to
- *	execute MOV (Ax),(Ax) for this... Oh and we can't use udelay
- *	here... see we need the via to calibrate the udelay loop ...
- */
-
-extern volatile long *via_memory_bogon;
- 
-extern __inline__ void via_write(volatile unsigned char *via,int reg, int v)
-{
-	*via_memory_bogon;
-	*via_memory_bogon;
-	*via_memory_bogon;
-	via[reg]=v;
-}
-
-extern __inline__ int via_read(volatile unsigned char *via,int reg)
-{
-	*via_memory_bogon;
-	*via_memory_bogon;
-	*via_memory_bogon;
-	return (int)via[reg];
-}
-
-extern volatile unsigned char *via1,*via2;
-
-/*
- *	6522 registers - see databook
- */
- 
-#define vBufB	0x0000
-#define vBufA	0x0200
-#define vDirB	0x0400
-#define vDirA	0x0600
-#define vT1CL	0x0800
-#define vT1CH	0x0a00
-#define vT1LL	0x0c00
-#define vT1LH	0x0e00
-#define vT2CL	0x1000
-#define vT2CH	0x1200
-#define vSR	0x1400
-#define vACR	0x1600
-#define vPCR	0x1800
-#define vIFR	0x1a00
-#define vIER	0x1c00 
-#define vANH	0x1e00  /* register A (no shake) */
-
-#define rBufB	0x00
-#define rBufA	0x02
-/*#define rIFR	0x03*/
-#define rIFR	0x1A03
-#define rVideo	0x10
-#define rSlot	0x12
-/*#define rIER	0x13*/
-#define rIER	0x1C13
-/*
-#define R_rIFR	0x03
-#define R_rIER	0x13
-#define W_rIFR	0x1A03
-#define W_rIER	0x1C13
-*/
-/*
- *	VIA interrupt
- */
- 
-struct via_irq_tab
-{
-	void (*vector[8])(int, void *, struct pt_regs *);
-};
-
-extern void via1_irq(int, void *, struct pt_regs *);
-extern void via2_irq(int, void *, struct pt_regs *);
-
-extern void via_setup_keyboard(void);
-
-#endif /* _ASM_VIA6522_H_ */