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ide: add ide_find_port() helper

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* Add ide_find_port() helper.

* Convert icside, rapide and ide_platform host drivers to use it.

Signed-off-by: Bartlomiej Zolnierkiewicz <bzolnier@gmail.com>
This commit is contained in:
Bartlomiej Zolnierkiewicz
2007-10-20 00:32:31 +02:00
parent 8447d9d52a
commit baa8f3e94b
5 changed files with 38 additions and 62 deletions
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24
drivers/ide/ide.c
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@ -265,6 +265,30 @@ static int ide_system_bus_speed(void)
return system_bus_speed;
}
ide_hwif_t * ide_find_port(unsigned long base)
{
ide_hwif_t *hwif;
int i;
for (i = 0; i < MAX_HWIFS; i++) {
hwif = &ide_hwifs[i];
if (hwif->io_ports[IDE_DATA_OFFSET] == base)
goto found;
}
for (i = 0; i < MAX_HWIFS; i++) {
hwif = &ide_hwifs[i];
if (hwif->io_ports[IDE_DATA_OFFSET] == 0)
goto found;
}
hwif = NULL;
found:
return hwif;
}
EXPORT_SYMBOL_GPL(ide_find_port);
static struct resource* hwif_request_region(ide_hwif_t *hwif,
unsigned long addr, int num)
{