patch-2.4.21 linux-2.4.21/drivers/ide/macide.c
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- Lines: 148
- Date:
1969-12-31 16:00:00.000000000 -0800
- Orig file:
linux-2.4.20/drivers/ide/macide.c
- Orig date:
2001-01-04 15:25:55.000000000 -0800
diff -urN linux-2.4.20/drivers/ide/macide.c linux-2.4.21/drivers/ide/macide.c
@@ -1,147 +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/config.h>
-#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>
-#include <asm/mac_baboon.h>
-
-#define IDE_BASE 0x50F1A000 /* Base address of IDE controller */
-
-/*
- * Generic IDE registers as offsets from the base
- * These match MkLinux so they should be correct.
- */
-
-#define IDE_DATA 0x00
-#define IDE_ERROR 0x04 /* see err-bits */
-#define IDE_NSECTOR 0x08 /* nr of sectors to read/write */
-#define IDE_SECTOR 0x0c /* starting sector */
-#define IDE_LCYL 0x10 /* starting cylinder */
-#define IDE_HCYL 0x14 /* high byte of starting cyl */
-#define IDE_SELECT 0x18 /* 101dhhhh , d=drive, hhhh=head */
-#define IDE_STATUS 0x1c /* see status-bits */
-#define IDE_CONTROL 0x38 /* control/altstatus */
-
-/*
- * Mac-specific registers
- */
-
-/*
- * this register is odd; it doesn't seem to do much and it's
- * not word-aligned like virtually every other hardware register
- * on the Mac...
- */
-
-#define IDE_IFR 0x101 /* (0x101) IDE interrupt flags on Quadra:
- *
- * 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
- */
-
-volatile unsigned char *ide_ifr = (unsigned char *) (IDE_BASE + IDE_IFR);
-
-static int macide_offsets[IDE_NR_PORTS] = {
- IDE_DATA, IDE_ERROR, IDE_NSECTOR, IDE_SECTOR, IDE_LCYL,
- IDE_HCYL, IDE_SELECT, IDE_STATUS, IDE_CONTROL
-};
-
-int macide_ack_intr(ide_hwif_t* hwif)
-{
- if (*ide_ifr & 0x20) {
- *ide_ifr &= ~0x20;
- return 1;
- }
- return 0;
-}
-
-#ifdef CONFIG_BLK_DEV_MAC_MEDIABAY
-static void macide_mediabay_interrupt(int irq, void *dev_id, struct pt_regs *regs)
-{
- int state = baboon->mb_status & 0x04;
-
- printk("macide: media bay %s detected\n", state? "removal":"insertion");
-}
-#endif
-
-/*
- * Probe for a Macintosh IDE interface
- */
-
-void macide_init(void)
-{
- hw_regs_t hw;
- int index = -1;
-
- switch (macintosh_config->ide_type) {
- case MAC_IDE_QUADRA:
- ide_setup_ports(&hw, (ide_ioreg_t)IDE_BASE, macide_offsets,
- 0, 0, macide_ack_intr, IRQ_NUBUS_F);
- index = ide_register_hw(&hw, NULL);
- break;
- case MAC_IDE_PB:
- ide_setup_ports(&hw, (ide_ioreg_t)IDE_BASE, macide_offsets,
- 0, 0, macide_ack_intr, IRQ_NUBUS_C);
- index = ide_register_hw(&hw, NULL);
- break;
- case MAC_IDE_BABOON:
- ide_setup_ports(&hw, (ide_ioreg_t)BABOON_BASE, macide_offsets,
- 0, 0, NULL, IRQ_BABOON_1);
- index = ide_register_hw(&hw, NULL);
- if (index == -1) break;
- if (macintosh_config->ident == MAC_MODEL_PB190) {
-
- /* Fix breakage in ide-disk.c: drive capacity */
- /* is not initialized for drives without a */
- /* hardware ID, and we cna't get that without */
- /* probing the drive which freezes a 190. */
-
- ide_drive_t *drive = &ide_hwifs[index].drives[0];
- drive->capacity = drive->cyl*drive->head*drive->sect;
-
-#ifdef CONFIG_BLK_DEV_MAC_MEDIABAY
- request_irq(IRQ_BABOON_2, macide_mediabay_interrupt,
- IRQ_FLG_FAST, "mediabay",
- macide_mediabay_interrupt);
-#endif
- }
- break;
-
- default:
- return;
- }
-
- if (index != -1) {
- if (macintosh_config->ide_type == MAC_IDE_QUADRA)
- printk("ide%d: Macintosh Quadra IDE interface\n", index);
- else if (macintosh_config->ide_type == MAC_IDE_PB)
- printk("ide%d: Macintosh Powerbook IDE interface\n", index);
- else if (macintosh_config->ide_type == MAC_IDE_BABOON)
- printk("ide%d: Macintosh Powerbook Baboon IDE interface\n", index);
- else
- printk("ide%d: Unknown Macintosh IDE interface\n", index);
- }
-}
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