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[/] [or1k_old/] [trunk/] [rc203soc/] [sw/] [uClinux/] [arch/] [armnommu/] [drivers/] [scsi/] [cumana_1.c] - Rev 1622
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#define AUTOSENSE #define PSEUDO_DMA /* * Generic Generic NCR5380 driver * * Copyright 1995, Russell King * * ALPHA RELEASE 1. * * For more information, please consult * * NCR 5380 Family * SCSI Protocol Controller * Databook * * NCR Microelectronics * 1635 Aeroplaza Drive * Colorado Springs, CO 80916 * 1+ (719) 578-3400 * 1+ (800) 334-5454 */ /* * Options : * * PARITY - enable parity checking. Not supported. * * SCSI2 - enable support for SCSI-II tagged queueing. Untested. * * USLEEP - enable support for devices that don't disconnect. Untested. */ /* * $Log: not supported by cvs2svn $ * Revision 1.1.1.1 2001/09/10 07:43:54 simons * Initial import * * Revision 1.1.1.1 2001/07/02 17:58:40 simons * Initial revision * * Revision 1.1.1.1 1999/11/15 13:42:32 vadim * Initial import * */ #include <linux/module.h> #include <asm/system.h> #include <asm/io.h> #include <linux/signal.h> #include <linux/sched.h> #include <linux/ioport.h> #include "../block/blk.h" #include "scsi.h" #include "hosts.h" #include "cumana_1.h" #include "NCR5380.h" #include "constants.h" #include <asm/ecard.h> static const card_ids cumanascsi_cids[] = { { MANU_CUMANA, PROD_CUMANA_SCSI_1 }, { 0xffff, 0xffff } }; static struct proc_dir_entry proc_scsi_cumana1 = { PROC_SCSI_T128, 12, "CumanaSCSI-1", S_IFDIR | S_IRUGO, S_IXUGO, 2 }; /* * Function : cumanascsi_setup(char *str, int *ints) * * Purpose : LILO command line initialization of the overrides array, * * Inputs : str - unused, ints - array of integer parameters with ints[0] * equal to the number of ints. * */ void cumanascsi_setup(char *str, int *ints) { } #define CUMANA_ADDRESS(card) (ecard_address((card), ECARD_IOC, ECARD_SLOW) + 0x800) #define CUMANA_IRQ(card) ((card)->irq) /* * Function : int cumanascsi_detect(Scsi_Host_Template * tpnt) * * Purpose : initializes cumana NCR5380 driver based on the * command line / compile time port and irq definitions. * * Inputs : tpnt - template for this SCSI adapter. * * Returns : 1 if a host adapter was found, 0 if not. * */ static struct expansion_card *ecs[4]; int cumanascsi_detect(Scsi_Host_Template * tpnt) { int count = 0; struct Scsi_Host *instance; tpnt->proc_dir = &proc_scsi_cumana1; memset (ecs, 0, sizeof (ecs)); while(1) { if((ecs[count] = ecard_find(0, cumanascsi_cids)) == NULL) break; instance = scsi_register (tpnt, sizeof(struct NCR5380_hostdata)); instance->io_port = CUMANA_ADDRESS(ecs[count]); instance->irq = CUMANA_IRQ(ecs[count]); NCR5380_init(instance, 0); ecard_claim(ecs[count]); instance->n_io_port = 255; request_region (instance->io_port, instance->n_io_port, "CumanaSCSI-1"); ((struct NCR5380_hostdata *)instance->hostdata)->ctrl = 0; outb(0x00, instance->io_port - 577); if (instance->irq != IRQ_NONE) if (request_irq(instance->irq, cumanascsi_intr, SA_INTERRUPT, "CumanaSCSI-1", NULL)) { printk("scsi%d: IRQ%d not free, interrupts disabled\n", instance->host_no, instance->irq); instance->irq = IRQ_NONE; } if (instance->irq == IRQ_NONE) { printk("scsi%d: interrupts not enabled. for better interactive performance,\n", instance->host_no); printk("scsi%d: please jumper the board for a free IRQ.\n", instance->host_no); } printk("scsi%d: at port %X irq", instance->host_no, instance->io_port); if (instance->irq == IRQ_NONE) printk ("s disabled"); else printk (" %d", instance->irq); printk(" options CAN_QUEUE=%d CMD_PER_LUN=%d release=%d", CAN_QUEUE, CMD_PER_LUN, CUMANASCSI_PUBLIC_RELEASE); printk("\nscsi%d:", instance->host_no); NCR5380_print_options(instance); printk("\n"); ++count; } return count; } int cumanascsi_release (struct Scsi_Host *shpnt) { int i; if (shpnt->irq != IRQ_NONE) free_irq (shpnt->irq, NULL); if (shpnt->io_port) release_region (shpnt->io_port, shpnt->n_io_port); for (i = 0; i < 4; i++) if (shpnt->io_port == CUMANA_ADDRESS(ecs[i])) ecard_release (ecs[i]); return 0; } const char * cumanascsi_info (struct Scsi_Host *spnt) { return ""; } #ifdef NOT_EFFICIENT #define CTRL(p,v) outb(*ctrl = (v), (p) - 577) #define STAT(p) inb((p)+1) #define IN(p) inb((p)) #define OUT(v,p) outb((v), (p)) #else #define CTRL(p,v) (p[-2308] = (*ctrl = (v))) #define STAT(p) (p[4]) #define IN(p) (*(p)) #define IN2(p) ((unsigned short)(*(volatile unsigned long *)(p))) #define OUT(v,p) (*(p) = (v)) #define OUT2(v,p) (*((volatile unsigned long *)(p)) = (v)) #endif #define L(v) (((v)<<16)|((v) & 0x0000ffff)) #define H(v) (((v)>>16)|((v) & 0xffff0000)) static inline int NCR5380_pwrite(struct Scsi_Host *instance, unsigned char *addr, int len) { int *ctrl = &((struct NCR5380_hostdata *)instance->hostdata)->ctrl; int oldctrl = *ctrl; unsigned long *laddr; #ifdef NOT_EFFICIENT int iobase = instance->io_port; int dma_io = iobase & ~(0x3C0000>>2); #else volatile unsigned char *iobase = (unsigned char *)ioaddr(instance->io_port); volatile unsigned char *dma_io = (unsigned char *)((int)iobase & ~0x3C0000); #endif if(!len) return 0; CTRL(iobase, 0x02); laddr = (unsigned long *)addr; while(len >= 32) { int status; unsigned long v; status = STAT(iobase); if(status & 0x80) goto end; if(!(status & 0x40)) continue; v=*laddr++; OUT2(L(v),dma_io); OUT2(H(v),dma_io); v=*laddr++; OUT2(L(v),dma_io); OUT2(H(v),dma_io); v=*laddr++; OUT2(L(v),dma_io); OUT2(H(v),dma_io); v=*laddr++; OUT2(L(v),dma_io); OUT2(H(v),dma_io); v=*laddr++; OUT2(L(v),dma_io); OUT2(H(v),dma_io); v=*laddr++; OUT2(L(v),dma_io); OUT2(H(v),dma_io); v=*laddr++; OUT2(L(v),dma_io); OUT2(H(v),dma_io); v=*laddr++; OUT2(L(v),dma_io); OUT2(H(v),dma_io); len -= 32; if(len == 0) break; } addr = (unsigned char *)laddr; CTRL(iobase, 0x12); while(len > 0) { int status; status = STAT(iobase); if(status & 0x80) goto end; if(status & 0x40) { OUT(*addr++, dma_io); if(--len == 0) break; } status = STAT(iobase); if(status & 0x80) goto end; if(status & 0x40) { OUT(*addr++, dma_io); if(--len == 0) break; } } end: CTRL(iobase, oldctrl|0x40); return len; } static inline int NCR5380_pread(struct Scsi_Host *instance, unsigned char *addr, int len) { int *ctrl = &((struct NCR5380_hostdata *)instance->hostdata)->ctrl; int oldctrl = *ctrl; unsigned long *laddr; #ifdef NOT_EFFICIENT int iobase = instance->io_port; int dma_io = iobase & ~(0x3C0000>>2); #else volatile unsigned char *iobase = (unsigned char *)ioaddr(instance->io_port); volatile unsigned char *dma_io = (unsigned char *)((int)iobase & ~0x3C0000); #endif if(!len) return 0; CTRL(iobase, 0x00); laddr = (unsigned long *)addr; while(len >= 32) { int status; status = STAT(iobase); if(status & 0x80) goto end; if(!(status & 0x40)) continue; *laddr++ = IN2(dma_io)|(IN2(dma_io)<<16); *laddr++ = IN2(dma_io)|(IN2(dma_io)<<16); *laddr++ = IN2(dma_io)|(IN2(dma_io)<<16); *laddr++ = IN2(dma_io)|(IN2(dma_io)<<16); *laddr++ = IN2(dma_io)|(IN2(dma_io)<<16); *laddr++ = IN2(dma_io)|(IN2(dma_io)<<16); *laddr++ = IN2(dma_io)|(IN2(dma_io)<<16); *laddr++ = IN2(dma_io)|(IN2(dma_io)<<16); len -= 32; if(len == 0) break; } addr = (unsigned char *)laddr; CTRL(iobase, 0x10); while(len > 0) { int status; status = STAT(iobase); if(status & 0x80) goto end; if(status & 0x40) { *addr++ = IN(dma_io); if(--len == 0) break; } status = STAT(iobase); if(status & 0x80) goto end; if(status & 0x40) { *addr++ = IN(dma_io); if(--len == 0) break; } } end: CTRL(iobase, oldctrl|0x40); return len; } #undef STAT #undef CTRL #undef IN #undef OUT #define CTRL(p,v) outb(*ctrl = (v), (p) - 577) static char cumanascsi_read(struct Scsi_Host *instance, int reg) { int iobase = instance->io_port; int i; int *ctrl = &((struct NCR5380_hostdata *)instance->hostdata)->ctrl; CTRL(iobase, 0); i = inb(iobase + 64 + reg); CTRL(iobase, 0x40); return i; } static void cumanascsi_write(struct Scsi_Host *instance, int reg, int value) { int iobase = instance->io_port; int *ctrl = &((struct NCR5380_hostdata *)instance->hostdata)->ctrl; CTRL(iobase, 0); outb(value, iobase + 64 + reg); CTRL(iobase, 0x40); } #undef CTRL #include "NCR5380.c" #ifdef MODULE Scsi_Host_Template driver_template = CUMANA_NCR5380; #include "scsi_module.c" #endif
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