2 * Q40 I/O port IDE Driver
6 * This file is subject to the terms and conditions of the GNU General Public
7 * License. See the file COPYING in the main directory of this archive for
13 #include <linux/types.h>
15 #include <linux/interrupt.h>
16 #include <linux/blkdev.h>
17 #include <linux/hdreg.h>
19 #include <linux/ide.h>
22 * Bases of the IDE interfaces
25 #define Q40IDE_NUM_HWIFS 2
27 #define PCIDE_BASE1 0x1f0
28 #define PCIDE_BASE2 0x170
29 #define PCIDE_BASE3 0x1e8
30 #define PCIDE_BASE4 0x168
31 #define PCIDE_BASE5 0x1e0
32 #define PCIDE_BASE6 0x160
34 static const unsigned long pcide_bases[Q40IDE_NUM_HWIFS] = {
35 PCIDE_BASE1, PCIDE_BASE2, /* PCIDE_BASE3, PCIDE_BASE4 , PCIDE_BASE5,
41 * Offsets from one of the above bases
44 /* used to do addr translation here but it is easier to do in setup ports */
45 /*#define IDE_OFF_B(x) ((unsigned long)Q40_ISA_IO_B((IDE_##x##_OFFSET)))*/
47 #define IDE_OFF_B(x) ((unsigned long)((IDE_##x##_OFFSET)))
48 #define IDE_OFF_W(x) ((unsigned long)((IDE_##x##_OFFSET)))
50 static const int pcide_offsets[IDE_NR_PORTS] = {
51 IDE_OFF_W(DATA), IDE_OFF_B(ERROR), IDE_OFF_B(NSECTOR), IDE_OFF_B(SECTOR),
52 IDE_OFF_B(LCYL), IDE_OFF_B(HCYL), 6 /*IDE_OFF_B(CURRENT)*/, IDE_OFF_B(STATUS),
56 static int q40ide_default_irq(unsigned long base)
59 case 0x1f0: return 14;
60 case 0x170: return 15;
61 case 0x1e8: return 11;
69 * Addresses are pretranslated for Q40 ISA access.
71 void q40_ide_setup_ports ( hw_regs_t *hw,
72 unsigned long base, int *offsets,
73 unsigned long ctrl, unsigned long intr,
74 ide_ack_intr_t *ack_intr,
79 memset(hw, 0, sizeof(hw_regs_t));
80 for (i = 0; i < IDE_NR_PORTS; i++) {
82 assumption: only DATA port is ever used in 16 bit mode */
84 hw->io_ports[i] = Q40_ISA_IO_W(base + offsets[i]);
86 hw->io_ports[i] = Q40_ISA_IO_B(base + offsets[i]);
90 hw->ack_intr = ack_intr;
96 * the static array is needed to have the name reported in /proc/ioports,
97 * hwif->name unfortunately isn't available yet
99 static const char *q40_ide_names[Q40IDE_NUM_HWIFS]={
104 * Probe for Q40 IDE interfaces
107 static int __init q40ide_init(void)
112 u8 idx[4] = { 0xff, 0xff, 0xff, 0xff };
117 printk(KERN_INFO "ide: Q40 IDE controller\n");
119 for (i = 0; i < Q40IDE_NUM_HWIFS; i++) {
122 name = q40_ide_names[i];
123 if (!request_region(pcide_bases[i], 8, name)) {
124 printk("could not reserve ports %lx-%lx for %s\n",
125 pcide_bases[i],pcide_bases[i]+8,name);
128 if (!request_region(pcide_bases[i]+0x206, 1, name)) {
129 printk("could not reserve port %lx for %s\n",
130 pcide_bases[i]+0x206,name);
131 release_region(pcide_bases[i], 8);
134 q40_ide_setup_ports(&hw,(unsigned long) pcide_bases[i], (int *)pcide_offsets,
135 pcide_bases[i]+0x206,
138 q40ide_default_irq(pcide_bases[i]));
140 hwif = ide_find_port(hw.io_ports[IDE_DATA_OFFSET]);
142 ide_init_port_data(hwif, hwif->index);
143 ide_init_port_hw(hwif, &hw);
146 idx[i] = hwif->index;
150 ide_device_add(idx, NULL);
155 module_init(q40ide_init);