Commit c6084cbc authored by Ondrej Zary's avatar Ondrej Zary Committed by Martin K. Petersen

ncr5380: Add support for HP C2502

HP C2502 cards (based on 53C400A chips) use different magic numbers for
software-based I/O address configuration than other cards.
The configuration is also extended to allow setting the IRQ.

Move the configuration to a new function magic_configure() and move
magic the magic numbers into an array. Add new magic numbers for these
HP cards and hp_c2502 module parameter to use them, e.g.:
modprobe g_NCR5380 ncr_irq=7 ncr_addr=0x280 hp_c2502=1

Tested with HP C2502 and DTCT-436P.
Signed-off-by: default avatarOndrej Zary <linux@rainbow-software.org>
Signed-off-by: default avatarFinn Thain <fthain@telegraphics.com.au>
Reviewed-by: default avatarHannes Reinecke <hare@suse.com>
Signed-off-by: default avatarMartin K. Petersen <martin.petersen@oracle.com>
parent 42fc6370
......@@ -80,6 +80,7 @@ static int ncr_5380;
static int ncr_53c400;
static int ncr_53c400a;
static int dtc_3181e;
static int hp_c2502;
static struct override {
NCR5380_map_type NCR5380_map_name;
......@@ -225,6 +226,30 @@ static int __init do_DTC3181E_setup(char *str)
#endif
#ifndef SCSI_G_NCR5380_MEM
/*
* Configure I/O address of 53C400A or DTC436 by writing magic numbers
* to ports 0x779 and 0x379.
*/
static void magic_configure(int idx, u8 irq, u8 magic[])
{
u8 cfg = 0;
outb(magic[0], 0x779);
outb(magic[1], 0x379);
outb(magic[2], 0x379);
outb(magic[3], 0x379);
outb(magic[4], 0x379);
/* allowed IRQs for HP C2502 */
if (irq != 2 && irq != 3 && irq != 4 && irq != 5 && irq != 7)
irq = 0;
if (idx >= 0 && idx <= 7)
cfg = 0x80 | idx | (irq << 4);
outb(cfg, 0x379);
}
#endif
/**
* generic_NCR5380_detect - look for NCR5380 controllers
* @tpnt: the scsi template
......@@ -241,8 +266,10 @@ static int __init generic_NCR5380_detect(struct scsi_host_template *tpnt)
static int current_override;
int count;
unsigned int *ports;
u8 *magic = NULL;
#ifndef SCSI_G_NCR5380_MEM
int i;
int port_idx = -1;
unsigned long region_size = 16;
#endif
static unsigned int __initdata ncr_53c400a_ports[] = {
......@@ -251,6 +278,12 @@ static int __init generic_NCR5380_detect(struct scsi_host_template *tpnt)
static unsigned int __initdata dtc_3181e_ports[] = {
0x220, 0x240, 0x280, 0x2a0, 0x2c0, 0x300, 0x320, 0x340, 0
};
static u8 ncr_53c400a_magic[] __initdata = { /* 53C400A & DTC436 */
0x59, 0xb9, 0xc5, 0xae, 0xa6
};
static u8 hp_c2502_magic[] __initdata = { /* HP C2502 */
0x0f, 0x22, 0xf0, 0x20, 0x80
};
int flags;
struct Scsi_Host *instance;
struct NCR5380_hostdata *hostdata;
......@@ -273,6 +306,8 @@ static int __init generic_NCR5380_detect(struct scsi_host_template *tpnt)
overrides[0].board = BOARD_NCR53C400A;
else if (dtc_3181e)
overrides[0].board = BOARD_DTC3181E;
else if (hp_c2502)
overrides[0].board = BOARD_HP_C2502;
#ifndef SCSI_G_NCR5380_MEM
if (!current_override && isapnp_present()) {
struct pnp_dev *dev = NULL;
......@@ -325,24 +360,26 @@ static int __init generic_NCR5380_detect(struct scsi_host_template *tpnt)
case BOARD_NCR53C400A:
flags = FLAG_NO_DMA_FIXUP;
ports = ncr_53c400a_ports;
magic = ncr_53c400a_magic;
break;
case BOARD_HP_C2502:
flags = FLAG_NO_DMA_FIXUP;
ports = ncr_53c400a_ports;
magic = hp_c2502_magic;
break;
case BOARD_DTC3181E:
flags = FLAG_NO_DMA_FIXUP;
ports = dtc_3181e_ports;
magic = ncr_53c400a_magic;
break;
}
#ifndef SCSI_G_NCR5380_MEM
if (ports) {
if (ports && magic) {
/* wakeup sequence for the NCR53C400A and DTC3181E */
/* Disable the adapter and look for a free io port */
outb(0x59, 0x779);
outb(0xb9, 0x379);
outb(0xc5, 0x379);
outb(0xae, 0x379);
outb(0xa6, 0x379);
outb(0x00, 0x379);
magic_configure(-1, 0, magic);
if (overrides[current_override].NCR5380_map_name != PORT_AUTO)
for (i = 0; ports[i]; i++) {
......@@ -361,17 +398,12 @@ static int __init generic_NCR5380_detect(struct scsi_host_template *tpnt)
}
if (ports[i]) {
/* At this point we have our region reserved */
outb(0x59, 0x779);
outb(0xb9, 0x379);
outb(0xc5, 0x379);
outb(0xae, 0x379);
outb(0xa6, 0x379);
outb(0x80 | i, 0x379); /* set io port to be used */
magic_configure(i, 0, magic); /* no IRQ yet */
outb(0xc0, ports[i] + 9);
if (inb(ports[i] + 9) != 0x80)
continue;
else
overrides[current_override].NCR5380_map_name = ports[i];
port_idx = i;
} else
continue;
}
......@@ -417,6 +449,7 @@ static int __init generic_NCR5380_detect(struct scsi_host_template *tpnt)
hostdata->io_width = 2; /* 16-bit PDMA */
/* fall through */
case BOARD_NCR53C400A:
case BOARD_HP_C2502:
hostdata->c400_ctl_status = 9;
hostdata->c400_blk_cnt = 10;
hostdata->c400_host_buf = 8;
......@@ -433,6 +466,7 @@ static int __init generic_NCR5380_detect(struct scsi_host_template *tpnt)
break;
case BOARD_DTC3181E:
case BOARD_NCR53C400A:
case BOARD_HP_C2502:
pr_err(DRV_MODULE_NAME ": unknown register offsets\n");
goto out_unregister;
}
......@@ -445,6 +479,7 @@ static int __init generic_NCR5380_detect(struct scsi_host_template *tpnt)
case BOARD_NCR53C400:
case BOARD_DTC3181E:
case BOARD_NCR53C400A:
case BOARD_HP_C2502:
NCR5380_write(hostdata->c400_ctl_status, CSR_BASE);
}
......@@ -459,12 +494,18 @@ static int __init generic_NCR5380_detect(struct scsi_host_template *tpnt)
if (instance->irq == 255)
instance->irq = NO_IRQ;
if (instance->irq != NO_IRQ)
if (instance->irq != NO_IRQ) {
#ifndef SCSI_G_NCR5380_MEM
/* set IRQ for HP C2502 */
if (overrides[current_override].board == BOARD_HP_C2502)
magic_configure(port_idx, instance->irq, magic);
#endif
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;
}
}
if (instance->irq == NO_IRQ) {
printk(KERN_INFO "scsi%d : interrupts not enabled. for better interactive performance,\n", instance->host_no);
......@@ -751,6 +792,7 @@ module_param(ncr_5380, int, 0);
module_param(ncr_53c400, int, 0);
module_param(ncr_53c400a, int, 0);
module_param(dtc_3181e, int, 0);
module_param(hp_c2502, int, 0);
MODULE_LICENSE("GPL");
#if !defined(SCSI_G_NCR5380_MEM) && defined(MODULE)
......
......@@ -88,6 +88,7 @@
#define BOARD_NCR53C400 1
#define BOARD_NCR53C400A 2
#define BOARD_DTC3181E 3
#define BOARD_HP_C2502 4
#endif /* GENERIC_NCR5380_H */
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