diff options
Diffstat (limited to 'drivers/scsi/g_NCR5380.c')
| -rw-r--r-- | drivers/scsi/g_NCR5380.c | 30 |
1 files changed, 18 insertions, 12 deletions
diff --git a/drivers/scsi/g_NCR5380.c b/drivers/scsi/g_NCR5380.c index 58a0b826eb51..6f9665d50d84 100644 --- a/drivers/scsi/g_NCR5380.c +++ b/drivers/scsi/g_NCR5380.c @@ -37,7 +37,7 @@ #define MAX_CARDS 8 /* old-style parameters for compatibility */ -static int ncr_irq; +static int ncr_irq = -1; static int ncr_addr; static int ncr_5380; static int ncr_53c400; @@ -52,9 +52,9 @@ module_param(ncr_53c400a, int, 0); module_param(dtc_3181e, int, 0); module_param(hp_c2502, int, 0); -static int irq[] = { 0, 0, 0, 0, 0, 0, 0, 0 }; +static int irq[] = { -1, -1, -1, -1, -1, -1, -1, -1 }; module_param_array(irq, int, NULL, 0); -MODULE_PARM_DESC(irq, "IRQ number(s)"); +MODULE_PARM_DESC(irq, "IRQ number(s) (0=none, 254=auto [default])"); static int base[] = { 0, 0, 0, 0, 0, 0, 0, 0 }; module_param_array(base, int, NULL, 0); @@ -344,6 +344,8 @@ static int generic_NCR5380_init_one(struct scsi_host_template *tpnt, /* Compatibility with documented NCR5380 kernel parameters */ if (irq == 255 || irq == 0) irq = NO_IRQ; + else if (irq == -1) + irq = IRQ_AUTO; if (board == BOARD_HP_C2502) { int *irq_table = hp_c2502_irqs; @@ -370,24 +372,28 @@ static int generic_NCR5380_init_one(struct scsi_host_template *tpnt, magic_configure(port_idx, board_irq, magic); } - if (irq == IRQ_AUTO) + if (irq == IRQ_AUTO) { instance->irq = g_NCR5380_probe_irq(instance); - else + if (instance->irq == NO_IRQ) + shost_printk(KERN_INFO, instance, "no irq detected\n"); + } else { instance->irq = irq; + if (instance->irq == NO_IRQ) + shost_printk(KERN_INFO, instance, "no irq provided\n"); + } if (instance->irq != NO_IRQ) { if (request_irq(instance->irq, generic_NCR5380_intr, 0, "NCR5380", instance)) { - printk(KERN_WARNING "scsi%d : IRQ%d not free, interrupts disabled\n", instance->host_no, instance->irq); instance->irq = NO_IRQ; + shost_printk(KERN_INFO, instance, + "irq %d denied\n", instance->irq); + } else { + shost_printk(KERN_INFO, instance, + "irq %d acquired\n", instance->irq); } } - if (instance->irq == NO_IRQ) { - printk(KERN_INFO "scsi%d : interrupts not enabled. for better interactive performance,\n", instance->host_no); - printk(KERN_INFO "scsi%d : please jumper the board for a free IRQ.\n", instance->host_no); - } - ret = scsi_add_host(instance, pdev); if (ret) goto out_free_irq; @@ -698,7 +704,7 @@ static int __init generic_NCR5380_init(void) int ret = 0; /* compatibility with old-style parameters */ - if (irq[0] == 0 && base[0] == 0 && card[0] == -1) { + if (irq[0] == -1 && base[0] == 0 && card[0] == -1) { irq[0] = ncr_irq; base[0] = ncr_addr; if (ncr_5380) |