1 /*
2 * This file is subject to the terms and conditions of the GNU General Public
3 * License. See the file "COPYING" in the main directory of this archive
4 * for more details.
5 *
6 * IDE routines for typical pc-like standard configurations.
7 *
8 * Copyright (C) 1998, 1999, 2001 by Ralf Baechle
9 */
10 #include <linux/sched.h>
11 #include <linux/ide.h>
12 #include <linux/ioport.h>
13 #include <linux/hdreg.h>
14 #include <asm/ptrace.h>
15 #include <asm/hdreg.h>
16
std_ide_default_irq(ide_ioreg_t base)17 static int std_ide_default_irq(ide_ioreg_t base)
18 {
19 switch (base) {
20 case 0x1f0: return 14;
21 case 0x170: return 15;
22 case 0x1e8: return 11;
23 case 0x168: return 10;
24 case 0x1e0: return 8;
25 case 0x160: return 12;
26 default:
27 return 0;
28 }
29 }
30
std_ide_default_io_base(int index)31 static ide_ioreg_t std_ide_default_io_base(int index)
32 {
33 switch (index) {
34 case 0: return 0x1f0;
35 case 1: return 0x170;
36 case 2: return 0x1e8;
37 case 3: return 0x168;
38 case 4: return 0x1e0;
39 case 5: return 0x160;
40 default:
41 return 0;
42 }
43 }
44
std_ide_init_hwif_ports(hw_regs_t * hw,ide_ioreg_t data_port,ide_ioreg_t ctrl_port,int * irq)45 static void std_ide_init_hwif_ports (hw_regs_t *hw, ide_ioreg_t data_port,
46 ide_ioreg_t ctrl_port, int *irq)
47 {
48 ide_ioreg_t reg = data_port;
49 int i;
50
51 for (i = IDE_DATA_OFFSET; i <= IDE_STATUS_OFFSET; i++) {
52 hw->io_ports[i] = reg;
53 reg += 1;
54 }
55 if (ctrl_port) {
56 hw->io_ports[IDE_CONTROL_OFFSET] = ctrl_port;
57 } else {
58 hw->io_ports[IDE_CONTROL_OFFSET] = hw->io_ports[IDE_DATA_OFFSET] + 0x206;
59 }
60 if (irq != NULL)
61 *irq = 0;
62 hw->io_ports[IDE_IRQ_OFFSET] = 0;
63 }
64
65 struct ide_ops std_ide_ops = {
66 &std_ide_default_irq,
67 &std_ide_default_io_base,
68 &std_ide_init_hwif_ports
69 };
70