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authorBartlomiej Zolnierkiewicz <bzolnier@gmail.com>2008-10-21 20:57:23 +0200
committerBartlomiej Zolnierkiewicz <bzolnier@gmail.com>2008-10-21 20:57:23 +0200
commit2bfba3c444fe8b2ab1c38112a89d8f03b61136ca (patch)
tree17580eee63d868c9d6b97a6bc956a08f25631532 /drivers/ide/macide.c
parent2515ddc6db8eb49a79f0fe5e67ff09ac7c81eab4 (diff)
downloadlinux-stericsson-2bfba3c444fe8b2ab1c38112a89d8f03b61136ca.tar.gz
ide: remove useless subdirs from drivers/ide/
Suggested-by: Ralf Baechle <ralf@linux-mips.org> Signed-off-by: Bartlomiej Zolnierkiewicz <bzolnier@gmail.com>
Diffstat (limited to 'drivers/ide/macide.c')
-rw-r--r--drivers/ide/macide.c131
1 files changed, 131 insertions, 0 deletions
diff --git a/drivers/ide/macide.c b/drivers/ide/macide.c
new file mode 100644
index 000000000000..43f97cc1d30e
--- /dev/null
+++ b/drivers/ide/macide.c
@@ -0,0 +1,131 @@
+/*
+ * 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/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_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);
+
+int macide_ack_intr(ide_hwif_t* hwif)
+{
+ if (*ide_ifr & 0x20) {
+ *ide_ifr &= ~0x20;
+ return 1;
+ }
+ return 0;
+}
+
+static void __init macide_setup_ports(hw_regs_t *hw, unsigned long base,
+ int irq, ide_ack_intr_t *ack_intr)
+{
+ int i;
+
+ memset(hw, 0, sizeof(*hw));
+
+ for (i = 0; i < 8; i++)
+ hw->io_ports_array[i] = base + i * 4;
+
+ hw->io_ports.ctl_addr = base + IDE_CONTROL;
+
+ hw->irq = irq;
+ hw->ack_intr = ack_intr;
+
+ hw->chipset = ide_generic;
+}
+
+static const char *mac_ide_name[] =
+ { "Quadra", "Powerbook", "Powerbook Baboon" };
+
+/*
+ * Probe for a Macintosh IDE interface
+ */
+
+static int __init macide_init(void)
+{
+ ide_ack_intr_t *ack_intr;
+ unsigned long base;
+ int irq;
+ hw_regs_t hw, *hws[] = { &hw, NULL, NULL, NULL };
+
+ if (!MACH_IS_MAC)
+ return -ENODEV;
+
+ switch (macintosh_config->ide_type) {
+ case MAC_IDE_QUADRA:
+ base = IDE_BASE;
+ ack_intr = macide_ack_intr;
+ irq = IRQ_NUBUS_F;
+ break;
+ case MAC_IDE_PB:
+ base = IDE_BASE;
+ ack_intr = macide_ack_intr;
+ irq = IRQ_NUBUS_C;
+ break;
+ case MAC_IDE_BABOON:
+ base = BABOON_BASE;
+ ack_intr = NULL;
+ irq = IRQ_BABOON_1;
+ break;
+ default:
+ return -ENODEV;
+ }
+
+ printk(KERN_INFO "ide: Macintosh %s IDE controller\n",
+ mac_ide_name[macintosh_config->ide_type - 1]);
+
+ macide_setup_ports(&hw, base, irq, ack_intr);
+
+ return ide_host_add(NULL, hws, NULL);
+}
+
+module_init(macide_init);
+
+MODULE_LICENSE("GPL");