diff options
Diffstat (limited to 'drivers/ide/ide.c')
| -rw-r--r-- | drivers/ide/ide.c | 32 |
1 files changed, 32 insertions, 0 deletions
diff --git a/drivers/ide/ide.c b/drivers/ide/ide.c index bced02f9f2c3..6cd112cc4af3 100644 --- a/drivers/ide/ide.c +++ b/drivers/ide/ide.c @@ -1239,6 +1239,38 @@ static void ide_port_class_release(struct device *portdev) put_device(&hwif->gendev); } +static unsigned int ide_ignore_cable; + +static int ide_set_ignore_cable(const char *s, struct kernel_param *kp) +{ + int i, j = 1; + + if (sscanf(s, "%d:%d", &i, &j) != 2 && sscanf(s, "%d", &i) != 1) + return -EINVAL; + + if (i >= MAX_HWIFS || j < 0 || j > 1) + return -EINVAL; + + if (j) + ide_ignore_cable |= (1 << i); + else + ide_ignore_cable &= (1 << i); + + return 0; +} + +module_param_call(ignore_cable, ide_set_ignore_cable, NULL, NULL, 0); +MODULE_PARM_DESC(ignore_cable, "ignore cable detection"); + +void ide_port_apply_params(ide_hwif_t *hwif) +{ + if (ide_ignore_cable & (1 << hwif->index)) { + printk(KERN_INFO "ide: ignoring cable detection for %s\n", + hwif->name); + hwif->cbl = ATA_CBL_PATA40_SHORT; + } +} + /* * This is gets invoked once during initialization, to set *everything* up */ |