* "Prefetch" mode bit OFF for ide disks and
* ON for anything else.
*
+ * Version 0.08 Need to force prefetch for CDs and other non-disk
+ * devices. (not sure which devices exactly need
+ * prefetch)
*
* HT-6560B EIDE-controller support
* To activate controller support use kernel parameter "ide0=ht6560b".
* Use hdparm utility to enable PIO mode support.
*
* Author: Mikko Ala-Fossi <maf@iki.fi>
- * Jan Evert van Grootheest <janevert@iae.nl>
+ * Jan Evert van Grootheest <janevert@caiway.nl>
*
* Try: http://www.maf.iki.fi/~maf/ht6560b/
*/
-#define HT6560B_VERSION "v0.07"
+#define HT6560B_VERSION "v0.08"
#include <linux/module.h>
#include <linux/types.h>
* out how they setup those cycle time interfacing values, as they at Holtek
* call them. IDESETUP.COM that is supplied with the drivers figures out
* optimal values and fetches those values to drivers. I found out that
- * they use IDE_SELECT_REG to fetch timings to the ide board right after
+ * they use Select register to fetch timings to the ide board right after
* interface switching. After that it was quite easy to add code to
* ht6560b.c.
*
*/
static void ht6560b_selectproc (ide_drive_t *drive)
{
+ ide_hwif_t *hwif = drive->hwif;
unsigned long flags;
static u8 current_select = 0;
static u8 current_timing = 0;
u8 select, timing;
local_irq_save(flags);
-
+
select = HT_CONFIG(drive);
timing = HT_TIMING(drive);
-
+
+ /*
+ * Need to enforce prefetch sometimes because otherwise
+ * it'll hang (hard).
+ */
+ if (drive->media != ide_disk || !drive->present)
+ select |= HT_PREFETCH_MODE;
+
if (select != current_select || timing != current_timing) {
current_select = select;
current_timing = timing;
- if (drive->media != ide_disk || !drive->present)
- select |= HT_PREFETCH_MODE;
(void)inb(HT_CONFIG_PORT);
(void)inb(HT_CONFIG_PORT);
(void)inb(HT_CONFIG_PORT);
/*
* Set timing for this drive:
*/
- outb(timing, IDE_SELECT_REG);
- (void)inb(IDE_STATUS_REG);
+ outb(timing, hwif->io_ports[IDE_SELECT_OFFSET]);
+ (void)inb(hwif->io_ports[IDE_STATUS_OFFSET]);
#ifdef DEBUG
printk("ht6560b: %s: select=%#x timing=%#x\n",
drive->name, select, timing);
* Ht6560b autodetected
*/
outb(HT_CONFIG_DEFAULT, HT_CONFIG_PORT);
- outb(HT_TIMING_DEFAULT, 0x1f6); /* IDE_SELECT_REG */
- (void) inb(0x1f7); /* IDE_STATUS_REG */
-
- printk("\nht6560b " HT6560B_VERSION
+ outb(HT_TIMING_DEFAULT, 0x1f6); /* Select register */
+ (void)inb(0x1f7); /* Status register */
+
+ printk("ht6560b " HT6560B_VERSION
": chipset detected and initialized"
#ifdef DEBUG
" with debug enabled"
#endif
+ "\n"
);
return 1;
}
#endif
}
+static void __init ht6560b_port_init_devs(ide_hwif_t *hwif)
+{
+ /* Setting default configurations for drives. */
+ int t = (HT_CONFIG_DEFAULT << 8) | HT_TIMING_DEFAULT;
+
+ if (hwif->channel)
+ t |= (HT_SECONDARY_IF << 8);
+
+ hwif->drives[0].drive_data = t;
+ hwif->drives[1].drive_data = t;
+}
+
int probe_ht6560b = 0;
module_param_named(probe, probe_ht6560b, bool, 0);
MODULE_PARM_DESC(probe, "probe for HT6560B chipset");
+static const struct ide_port_info ht6560b_port_info __initdata = {
+ .chipset = ide_ht6560b,
+ .host_flags = IDE_HFLAG_SERIALIZE | /* is this needed? */
+ IDE_HFLAG_NO_DMA |
+ IDE_HFLAG_NO_AUTOTUNE |
+ IDE_HFLAG_ABUSE_PREFETCH,
+ .pio_mask = ATA_PIO4,
+};
+
static int __init ht6560b_init(void)
{
ide_hwif_t *hwif, *mate;
static u8 idx[4] = { 0, 1, 0xff, 0xff };
- int t;
+ hw_regs_t hw[2];
if (probe_ht6560b == 0)
return -ENODEV;
goto release_region;
}
- hwif->chipset = ide_ht6560b;
+ memset(&hw, 0, sizeof(hw));
+
+ ide_std_init_ports(&hw[0], 0x1f0, 0x3f6);
+ hw[0].irq = 14;
+
+ ide_std_init_ports(&hw[1], 0x170, 0x376);
+ hw[1].irq = 15;
+
+ ide_init_port_hw(hwif, &hw[0]);
+ ide_init_port_hw(mate, &hw[1]);
+
hwif->selectproc = &ht6560b_selectproc;
- hwif->host_flags = IDE_HFLAG_ABUSE_PREFETCH;
- hwif->pio_mask = ATA_PIO5;
hwif->set_pio_mode = &ht6560b_set_pio_mode;
- hwif->serialized = 1; /* is this needed? */
- hwif->mate = mate;
- mate->chipset = ide_ht6560b;
mate->selectproc = &ht6560b_selectproc;
- mate->host_flags = IDE_HFLAG_ABUSE_PREFETCH;
- mate->pio_mask = ATA_PIO5;
mate->set_pio_mode = &ht6560b_set_pio_mode;
- mate->serialized = 1; /* is this needed? */
- mate->mate = hwif;
- mate->channel = 1;
-
- /*
- * Setting default configurations for drives
- */
- t = (HT_CONFIG_DEFAULT << 8);
- t |= HT_TIMING_DEFAULT;
- hwif->drives[0].drive_data = t;
- hwif->drives[1].drive_data = t;
- t |= (HT_SECONDARY_IF << 8);
- mate->drives[0].drive_data = t;
- mate->drives[1].drive_data = t;
+ hwif->port_init_devs = ht6560b_port_init_devs;
+ mate->port_init_devs = ht6560b_port_init_devs;
- ide_device_add(idx);
+ ide_device_add(idx, &ht6560b_port_info);
return 0;
projects / linux-2.6 / blobdiff