From 1da177e4c3f41524e886b7f1b8a0c1fc7321cac2 Mon Sep 17 00:00:00 2001 From: Linus Torvalds Date: Sat, 16 Apr 2005 15:20:36 -0700 Subject: Linux-2.6.12-rc2 Initial git repository build. I'm not bothering with the full history, even though we have it. We can create a separate "historical" git archive of that later if we want to, and in the meantime it's about 3.2GB when imported into git - space that would just make the early git days unnecessarily complicated, when we don't have a lot of good infrastructure for it. Let it rip! --- drivers/scsi/arm/cumana_1.c | 357 ++++++++++++++++++++++++++++++++++++++++++++ 1 file changed, 357 insertions(+) create mode 100644 drivers/scsi/arm/cumana_1.c (limited to 'drivers/scsi/arm/cumana_1.c') diff --git a/drivers/scsi/arm/cumana_1.c b/drivers/scsi/arm/cumana_1.c new file mode 100644 index 00000000000..27271bfc01d --- /dev/null +++ b/drivers/scsi/arm/cumana_1.c @@ -0,0 +1,357 @@ +/* + * Generic Generic NCR5380 driver + * + * Copyright 1995-2002, Russell King + */ +#include +#include +#include +#include +#include +#include +#include + +#include +#include +#include +#include + +#include "../scsi.h" +#include + +#include + +#define AUTOSENSE +#define PSEUDO_DMA + +#define CUMANASCSI_PUBLIC_RELEASE 1 + +#define NCR5380_implementation_fields int port, ctrl +#define NCR5380_local_declare() struct Scsi_Host *_instance +#define NCR5380_setup(instance) _instance = instance +#define NCR5380_read(reg) cumanascsi_read(_instance, reg) +#define NCR5380_write(reg, value) cumanascsi_write(_instance, reg, value) +#define NCR5380_intr cumanascsi_intr +#define NCR5380_queue_command cumanascsi_queue_command +#define NCR5380_proc_info cumanascsi_proc_info + +#define BOARD_NORMAL 0 +#define BOARD_NCR53C400 1 + +#include "../NCR5380.h" + +void cumanascsi_setup(char *str, int *ints) +{ +} + +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) +{ + unsigned 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" + +static Scsi_Host_Template cumanascsi_template = { + .module = THIS_MODULE, + .name = "Cumana 16-bit SCSI", + .info = cumanascsi_info, + .queuecommand = cumanascsi_queue_command, + .eh_abort_handler = NCR5380_abort, + .eh_device_reset_handler= NCR5380_device_reset, + .eh_bus_reset_handler = NCR5380_bus_reset, + .eh_host_reset_handler = NCR5380_host_reset, + .can_queue = 16, + .this_id = 7, + .sg_tablesize = SG_ALL, + .cmd_per_lun = 2, + .unchecked_isa_dma = 0, + .use_clustering = DISABLE_CLUSTERING, + .proc_name = "CumanaSCSI-1", +}; + +static int __devinit +cumanascsi1_probe(struct expansion_card *ec, const struct ecard_id *id) +{ + struct Scsi_Host *host; + int ret = -ENOMEM; + + host = scsi_host_alloc(&cumanascsi_template, sizeof(struct NCR5380_hostdata)); + if (!host) + goto out; + + host->io_port = ecard_address(ec, ECARD_IOC, ECARD_SLOW) + 0x800; + host->irq = ec->irq; + + NCR5380_init(host, 0); + + host->n_io_port = 255; + if (!(request_region(host->io_port, host->n_io_port, "CumanaSCSI-1"))) { + ret = -EBUSY; + goto out_free; + } + + ((struct NCR5380_hostdata *)host->hostdata)->ctrl = 0; + outb(0x00, host->io_port - 577); + + ret = request_irq(host->irq, cumanascsi_intr, SA_INTERRUPT, + "CumanaSCSI-1", host); + if (ret) { + printk("scsi%d: IRQ%d not free: %d\n", + host->host_no, host->irq, ret); + goto out_release; + } + + printk("scsi%d: at port 0x%08lx irq %d", + host->host_no, host->io_port, host->irq); + printk(" options CAN_QUEUE=%d CMD_PER_LUN=%d release=%d", + host->can_queue, host->cmd_per_lun, CUMANASCSI_PUBLIC_RELEASE); + printk("\nscsi%d:", host->host_no); + NCR5380_print_options(host); + printk("\n"); + + ret = scsi_add_host(host, &ec->dev); + if (ret) + goto out_free_irq; + + scsi_scan_host(host); + goto out; + + out_free_irq: + free_irq(host->irq, host); + out_release: + release_region(host->io_port, host->n_io_port); + out_free: + scsi_host_put(host); + out: + return ret; +} + +static void __devexit cumanascsi1_remove(struct expansion_card *ec) +{ + struct Scsi_Host *host = ecard_get_drvdata(ec); + + ecard_set_drvdata(ec, NULL); + + scsi_remove_host(host); + free_irq(host->irq, host); + NCR5380_exit(host); + release_region(host->io_port, host->n_io_port); + scsi_host_put(host); +} + +static const struct ecard_id cumanascsi1_cids[] = { + { MANU_CUMANA, PROD_CUMANA_SCSI_1 }, + { 0xffff, 0xffff } +}; + +static struct ecard_driver cumanascsi1_driver = { + .probe = cumanascsi1_probe, + .remove = __devexit_p(cumanascsi1_remove), + .id_table = cumanascsi1_cids, + .drv = { + .name = "cumanascsi1", + }, +}; + +static int __init cumanascsi_init(void) +{ + return ecard_register_driver(&cumanascsi1_driver); +} + +static void __exit cumanascsi_exit(void) +{ + ecard_remove_driver(&cumanascsi1_driver); +} + +module_init(cumanascsi_init); +module_exit(cumanascsi_exit); + +MODULE_DESCRIPTION("Cumana SCSI-1 driver for Acorn machines"); +MODULE_LICENSE("GPL"); -- cgit v1.2.3