patch-2.3.99-pre1 linux/drivers/block/macide.c

• Lines: 117
• Date: Wed Dec 31 16:00:00 1969
• Orig file: v2.3.51/linux/drivers/block/macide.c
• Orig date: Sat Feb 26 22:31:44 2000

diff -u --recursive --new-file v2.3.51/linux/drivers/block/macide.c linux/drivers/block/macide.c
@@ -1,116 +0,0 @@
-/*
- *  linux/drivers/ide/macide.c -- Macintosh IDE Driver
- *
- *     Copyright (C) 1998 by Michael Schmitz
- *
- *  This driver was written based on information obtained from the MacOS IDE
- *  driver binary by Mikael Forselius
- *
- *  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.
- */
-
-#include <linux/types.h>
-#include <linux/mm.h>
-#include <linux/interrupt.h>
-#include <linux/blkdev.h>
-#include <linux/hdreg.h>
-#include <linux/delay.h>
-#include <linux/ide.h>
-
-#include <asm/machw.h>
-#include <asm/macintosh.h>
-#include <asm/macints.h>
-
-    /*
-     *  Base of the IDE interface (see ATAManager ROM code)
-     */
-
-#define MAC_HD_BASE	0x50f1a000
-
-    /*
-     *  Offsets from the above base (scaling 4)
-     */
-
-#define MAC_HD_DATA	0x00
-#define MAC_HD_ERROR	0x04		/* see err-bits */
-#define MAC_HD_NSECTOR	0x08		/* nr of sectors to read/write */
-#define MAC_HD_SECTOR	0x0c		/* starting sector */
-#define MAC_HD_LCYL	0x10		/* starting cylinder */
-#define MAC_HD_HCYL	0x14		/* high byte of starting cyl */
-#define MAC_HD_SELECT	0x18		/* 101dhhhh , d=drive, hhhh=head */
-#define MAC_HD_STATUS	0x1c		/* see status-bits */
-#define MAC_HD_CONTROL	0x38		/* control/altstatus */
-
-static int __init macide_offsets[IDE_NR_PORTS] = {
-    MAC_HD_DATA, MAC_HD_ERROR, MAC_HD_NSECTOR, MAC_HD_SECTOR, MAC_HD_LCYL,
-    MAC_HD_HCYL, MAC_HD_SELECT, MAC_HD_STATUS, MAC_HD_CONTROL
-};
-
-	/*
-	 * Other registers
-	 */
-
-	/* 
-	 * IDE interrupt status register for both (?) hwifs on Quadra
-	 * Initial setting: 0xc
-	 * Guessing again:
-	 * Bit 0+1: some interrupt flags
-	 * Bit 2+3: some interrupt enable
-	 * Bit 4:   ??
-	 * Bit 5:   IDE interrupt flag (any hwif)
-	 * Bit 6:   maybe IDE interrupt enable (any hwif) ??
-	 * Bit 7:   Any interrupt condition
-	 *
-	 * Only relevant item: bit 5, to be checked by mac_ack_intr
-	 */
-
-#define MAC_HD_ISR	0x101
-
-static int mac_ack_intr(ide_hwif_t* hwif)
-{
-	unsigned char isr;
-	isr = readb(MAC_HD_BASE + MAC_HD_ISR);
-	if (isr & (1<<5)) {
-		writeb(isr & ~(1<<5), MAC_HD_BASE + MAC_HD_ISR);
-		return 1;
-	}
-
-	return 0;
-}
-
-    /*
-     *  Probe for a Macintosh IDE interface
-     */
-
-void __init macide_init(void)
-{
-	hw_regs_t hw;
-	int index = -1;
-
-	if (!MACH_IS_MAC || macintosh_config->ide_type == 0)
-		return;
-
-	switch (macintosh_config->ide_type) {
-	case MAC_IDE_QUADRA:
-		ide_setup_ports(&hw, (ide_ioreg_t)MAC_HD_BASE, macide_offsets,
-				0, (ide_ioreg_t)(MAC_HD_BASE+MAC_HD_ISR),
-				mac_ack_intr, IRQ_NUBUS_F);
-		index = ide_register_hw(&hw, NULL);
-		break;
-
-	default:
-	    ide_setup_ports(&hw, (ide_ioreg_t)MAC_HD_BASE, macide_offsets,
-	    		    0, 0, NULL, IRQ_NUBUS_C);
-	    index = ide_register_hw(&hw, NULL);
-	    break;
-	}
-
-        if (index != -1) {
-		if (macintosh_config->ide_type == MAC_IDE_QUADRA)
-			printk("ide%d: Macintosh Quadra IDE interface\n", index);
-		else
-			printk("ide%d: Macintosh Powerbook IDE interface\n", index);
-	}
-}