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ide: add struct ide_host (take 3)

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* Add struct ide_host which keeps pointers to host's ports.

* Add ide_host_alloc[_all]() and ide_host_remove() helpers.

* Pass 'struct ide_host *host' instead of 'u8 *idx' to
  ide_device_add[_all]() and rename it to ide_host_register[_all]().

* Convert host drivers and core code to use struct ide_host.

* Remove no longer needed ide_find_port().

* Make ide_find_port_slot() static.

* Unexport ide_unregister().

v2:
* Add missing 'struct ide_host *host' to macide.c.

v3:
* Fix build problem in pmac.c (s/ide_alloc_host/ide_host_alloc/)
  (Noticed by Stephen Rothwell).

Signed-off-by: Bartlomiej Zolnierkiewicz <bzolnier@gmail.com>
This commit is contained in:
Bartlomiej Zolnierkiewicz
2008-07-23 19:55:57 +02:00
parent 374e042c3e
commit 48c3c10726
27 changed files with 264 additions and 349 deletions
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28
drivers/ide/ide-generic.c
View File

@@ -28,27 +28,24 @@ MODULE_PARM_DESC(probe_mask, "probe mask for legacy ISA IDE ports");
static ssize_t store_add(struct class *cls, const char *buf, size_t n)
{
ide_hwif_t *hwif;
struct ide_host *host;
unsigned int base, ctl;
int irq;
hw_regs_t hw, *hws[] = { &hw, NULL, NULL, NULL };
u8 idx[] = { 0xff, 0xff, 0xff, 0xff };
if (sscanf(buf, "%x:%x:%d", &base, &ctl, &irq) != 3)
return -EINVAL;
hwif = ide_find_port();
if (hwif == NULL)
return -ENOENT;
memset(&hw, 0, sizeof(hw));
ide_std_init_ports(&hw, base, ctl);
hw.irq = irq;
hw.chipset = ide_generic;
idx[0] = hwif->index;
host = ide_host_alloc(NULL, hws);
if (host == NULL)
return -ENOENT;
ide_device_add(idx, NULL, hws);
ide_host_register(host, NULL, hws);
return n;
};
@@ -89,18 +86,16 @@ static int __init ide_generic_sysfs_init(void)
static int __init ide_generic_init(void)
{
hw_regs_t hw[MAX_HWIFS], *hws[MAX_HWIFS];
u8 idx[MAX_HWIFS];
struct ide_host *host;
int i;
printk(KERN_INFO DRV_NAME ": please use \"probe_mask=0x3f\" module "
"parameter for probing all legacy ISA IDE ports\n");
for (i = 0; i < MAX_HWIFS; i++) {
ide_hwif_t *hwif;
unsigned long io_addr = ide_default_io_base(i);
hws[i] = NULL;
idx[i] = 0xff;
if ((probe_mask & (1 << i)) && io_addr) {
if (!request_region(io_addr, 8, DRV_NAME)) {
@@ -118,23 +113,18 @@ static int __init ide_generic_init(void)
continue;
}
hwif = ide_find_port();
if (hwif == NULL)
continue;
hwif->chipset = ide_generic;
memset(&hw[i], 0, sizeof(hw[i]));
ide_std_init_ports(&hw[i], io_addr, io_addr + 0x206);
hw[i].irq = ide_default_irq(io_addr);
hw[i].chipset = ide_generic;
hws[i] = &hw[i];
idx[i] = i;
}
}
ide_device_add_all(idx, NULL, hws);
host = ide_host_alloc_all(NULL, hws);
if (host)
ide_host_register(host, NULL, hws);
if (ide_generic_sysfs_init())
printk(KERN_ERR DRV_NAME ": failed to create ide_generic "