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: Ondrej Zary <linux@rainbow-software.org> Signed-off-by: Finn Thain <fthain@telegraphics.com.au> Reviewed-by: Hannes Reinecke <hare@suse.com> Signed-off-by: Martin K. Petersen <martin.petersen@oracle.com>
This commit is contained in:
Ondrej Zary
Martin K. Petersen
parent
42fc6370c9
commit
c6084cbce4
@ -80,6 +80,7 @@ static int ncr_5380;
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static int ncr_53c400;
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static int ncr_53c400a;
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static int dtc_3181e;
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static int hp_c2502;
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static struct override {
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NCR5380_map_type NCR5380_map_name;
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@ -225,6 +226,30 @@ static int __init do_DTC3181E_setup(char *str)
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#endif
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#ifndef SCSI_G_NCR5380_MEM
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/*
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* Configure I/O address of 53C400A or DTC436 by writing magic numbers
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* to ports 0x779 and 0x379.
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*/
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static void magic_configure(int idx, u8 irq, u8 magic[])
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{
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u8 cfg = 0;
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outb(magic[0], 0x779);
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outb(magic[1], 0x379);
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outb(magic[2], 0x379);
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outb(magic[3], 0x379);
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outb(magic[4], 0x379);
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/* allowed IRQs for HP C2502 */
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if (irq != 2 && irq != 3 && irq != 4 && irq != 5 && irq != 7)
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irq = 0;
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if (idx >= 0 && idx <= 7)
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cfg = 0x80 | idx | (irq << 4);
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outb(cfg, 0x379);
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}
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#endif
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/**
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* generic_NCR5380_detect - look for NCR5380 controllers
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* @tpnt: the scsi template
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@ -241,8 +266,10 @@ static int __init generic_NCR5380_detect(struct scsi_host_template *tpnt)
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static int current_override;
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int count;
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unsigned int *ports;
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u8 *magic = NULL;
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#ifndef SCSI_G_NCR5380_MEM
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int i;
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int port_idx = -1;
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unsigned long region_size = 16;
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#endif
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static unsigned int __initdata ncr_53c400a_ports[] = {
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@ -251,6 +278,12 @@ static int __init generic_NCR5380_detect(struct scsi_host_template *tpnt)
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static unsigned int __initdata dtc_3181e_ports[] = {
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0x220, 0x240, 0x280, 0x2a0, 0x2c0, 0x300, 0x320, 0x340, 0
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};
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static u8 ncr_53c400a_magic[] __initdata = { /* 53C400A & DTC436 */
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0x59, 0xb9, 0xc5, 0xae, 0xa6
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};
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static u8 hp_c2502_magic[] __initdata = { /* HP C2502 */
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0x0f, 0x22, 0xf0, 0x20, 0x80
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};
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int flags;
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struct Scsi_Host *instance;
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struct NCR5380_hostdata *hostdata;
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@ -273,6 +306,8 @@ static int __init generic_NCR5380_detect(struct scsi_host_template *tpnt)
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overrides[0].board = BOARD_NCR53C400A;
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else if (dtc_3181e)
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overrides[0].board = BOARD_DTC3181E;
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else if (hp_c2502)
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overrides[0].board = BOARD_HP_C2502;
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#ifndef SCSI_G_NCR5380_MEM
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if (!current_override && isapnp_present()) {
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struct pnp_dev *dev = NULL;
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@ -325,24 +360,26 @@ static int __init generic_NCR5380_detect(struct scsi_host_template *tpnt)
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case BOARD_NCR53C400A:
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flags = FLAG_NO_DMA_FIXUP;
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ports = ncr_53c400a_ports;
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magic = ncr_53c400a_magic;
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break;
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case BOARD_HP_C2502:
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flags = FLAG_NO_DMA_FIXUP;
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ports = ncr_53c400a_ports;
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magic = hp_c2502_magic;
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break;
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case BOARD_DTC3181E:
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flags = FLAG_NO_DMA_FIXUP;
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ports = dtc_3181e_ports;
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magic = ncr_53c400a_magic;
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break;
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}
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#ifndef SCSI_G_NCR5380_MEM
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if (ports) {
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if (ports && magic) {
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/* wakeup sequence for the NCR53C400A and DTC3181E */
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/* Disable the adapter and look for a free io port */
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outb(0x59, 0x779);
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outb(0xb9, 0x379);
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outb(0xc5, 0x379);
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outb(0xae, 0x379);
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outb(0xa6, 0x379);
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outb(0x00, 0x379);
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magic_configure(-1, 0, magic);
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if (overrides[current_override].NCR5380_map_name != PORT_AUTO)
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for (i = 0; ports[i]; i++) {
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@ -361,17 +398,12 @@ static int __init generic_NCR5380_detect(struct scsi_host_template *tpnt)
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}
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if (ports[i]) {
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/* At this point we have our region reserved */
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outb(0x59, 0x779);
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outb(0xb9, 0x379);
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outb(0xc5, 0x379);
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outb(0xae, 0x379);
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outb(0xa6, 0x379);
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outb(0x80 | i, 0x379); /* set io port to be used */
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magic_configure(i, 0, magic); /* no IRQ yet */
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outb(0xc0, ports[i] + 9);
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if (inb(ports[i] + 9) != 0x80)
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continue;
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else
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overrides[current_override].NCR5380_map_name = ports[i];
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overrides[current_override].NCR5380_map_name = ports[i];
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port_idx = i;
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} else
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continue;
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}
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@ -417,6 +449,7 @@ static int __init generic_NCR5380_detect(struct scsi_host_template *tpnt)
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hostdata->io_width = 2; /* 16-bit PDMA */
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/* fall through */
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case BOARD_NCR53C400A:
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case BOARD_HP_C2502:
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hostdata->c400_ctl_status = 9;
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hostdata->c400_blk_cnt = 10;
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hostdata->c400_host_buf = 8;
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@ -433,6 +466,7 @@ static int __init generic_NCR5380_detect(struct scsi_host_template *tpnt)
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break;
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case BOARD_DTC3181E:
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case BOARD_NCR53C400A:
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case BOARD_HP_C2502:
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pr_err(DRV_MODULE_NAME ": unknown register offsets\n");
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goto out_unregister;
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}
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@ -445,6 +479,7 @@ static int __init generic_NCR5380_detect(struct scsi_host_template *tpnt)
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case BOARD_NCR53C400:
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case BOARD_DTC3181E:
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case BOARD_NCR53C400A:
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case BOARD_HP_C2502:
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NCR5380_write(hostdata->c400_ctl_status, CSR_BASE);
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}
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@ -459,12 +494,18 @@ static int __init generic_NCR5380_detect(struct scsi_host_template *tpnt)
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if (instance->irq == 255)
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instance->irq = NO_IRQ;
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if (instance->irq != NO_IRQ)
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if (instance->irq != NO_IRQ) {
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#ifndef SCSI_G_NCR5380_MEM
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/* set IRQ for HP C2502 */
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if (overrides[current_override].board == BOARD_HP_C2502)
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magic_configure(port_idx, instance->irq, magic);
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#endif
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if (request_irq(instance->irq, generic_NCR5380_intr,
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0, "NCR5380", instance)) {
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printk(KERN_WARNING "scsi%d : IRQ%d not free, interrupts disabled\n", instance->host_no, instance->irq);
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instance->irq = NO_IRQ;
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}
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}
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if (instance->irq == NO_IRQ) {
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printk(KERN_INFO "scsi%d : interrupts not enabled. for better interactive performance,\n", instance->host_no);
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@ -751,6 +792,7 @@ module_param(ncr_5380, int, 0);
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module_param(ncr_53c400, int, 0);
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module_param(ncr_53c400a, int, 0);
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module_param(dtc_3181e, int, 0);
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module_param(hp_c2502, int, 0);
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MODULE_LICENSE("GPL");
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#if !defined(SCSI_G_NCR5380_MEM) && defined(MODULE)
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@ -88,6 +88,7 @@
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#define BOARD_NCR53C400 1
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#define BOARD_NCR53C400A 2
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#define BOARD_DTC3181E 3
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#define BOARD_HP_C2502 4
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#endif /* GENERIC_NCR5380_H */
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