1 /*
2 * linux/include/asm-x86_64/ide.h
3 *
4 * Copyright (C) 1994-1996 Linus Torvalds & authors
5 */
6
7 /*
8 * This file contains the i386 architecture specific IDE code.
9 */
10
11 #ifndef __ASMx86_64_IDE_H
12 #define __ASMx86_64_IDE_H
13
14 #ifdef __KERNEL__
15
16 #include <linux/config.h>
17
18 #ifndef MAX_HWIFS
19 # ifdef CONFIG_BLK_DEV_IDEPCI
20 #define MAX_HWIFS 10
21 # else
22 #define MAX_HWIFS 6
23 # endif
24 #endif
25
ide_default_irq(ide_ioreg_t base)26 static __inline__ int ide_default_irq(ide_ioreg_t base)
27 {
28 switch (base) {
29 case 0x1f0: return 14;
30 case 0x170: return 15;
31 case 0x1e8: return 11;
32 case 0x168: return 10;
33 case 0x1e0: return 8;
34 case 0x160: return 12;
35 default:
36 return 0;
37 }
38 }
39
ide_default_io_base(int index)40 static __inline__ ide_ioreg_t ide_default_io_base(int index)
41 {
42 switch (index) {
43 case 0: return 0x1f0;
44 case 1: return 0x170;
45 case 2: return 0x1e8;
46 case 3: return 0x168;
47 case 4: return 0x1e0;
48 case 5: return 0x160;
49 default:
50 return 0;
51 }
52 }
53
ide_init_hwif_ports(hw_regs_t * hw,ide_ioreg_t data_port,ide_ioreg_t ctrl_port,int * irq)54 static __inline__ void ide_init_hwif_ports(hw_regs_t *hw, ide_ioreg_t data_port, ide_ioreg_t ctrl_port, int *irq)
55 {
56 ide_ioreg_t reg = data_port;
57 int i;
58
59 for (i = IDE_DATA_OFFSET; i <= IDE_STATUS_OFFSET; i++) {
60 hw->io_ports[i] = reg;
61 reg += 1;
62 }
63 if (ctrl_port) {
64 hw->io_ports[IDE_CONTROL_OFFSET] = ctrl_port;
65 } else {
66 hw->io_ports[IDE_CONTROL_OFFSET] = hw->io_ports[IDE_DATA_OFFSET] + 0x206;
67 }
68 if (irq != NULL)
69 *irq = 0;
70 hw->io_ports[IDE_IRQ_OFFSET] = 0;
71 }
72
ide_init_default_hwifs(void)73 static __inline__ void ide_init_default_hwifs(void)
74 {
75 #ifndef CONFIG_BLK_DEV_IDEPCI
76 hw_regs_t hw;
77 int index;
78
79 for(index = 0; index < MAX_HWIFS; index++) {
80 memset(&hw, 0, sizeof hw);
81 ide_init_hwif_ports(&hw, ide_default_io_base(index), 0, NULL);
82 hw.irq = ide_default_irq(ide_default_io_base(index));
83 ide_register_hw(&hw, NULL);
84 }
85 #endif /* CONFIG_BLK_DEV_IDEPCI */
86 }
87
88 #include <asm-generic/ide_iops.h>
89
90 #endif /* __KERNEL__ */
91
92 #endif /* __ASMx86_64_IDE_H */
93