Exemplo n.º 1
0
int sun3scsi_detect(struct scsi_host_template * tpnt)
{
	unsigned long ioaddr;
	static int called = 0;
	struct Scsi_Host *instance;

	/* check that this machine has an onboard 5380 */
	switch(idprom->id_machtype) {
	case SM_SUN3|SM_3_50:
	case SM_SUN3|SM_3_60:
		break;

	default:
		return 0;
	}

	if(called)
		return 0;

	tpnt->proc_name = "Sun3 5380 SCSI";

	/* setup variables */
	tpnt->can_queue =
		(setup_can_queue > 0) ? setup_can_queue : CAN_QUEUE;
	tpnt->cmd_per_lun =
		(setup_cmd_per_lun > 0) ? setup_cmd_per_lun : CMD_PER_LUN;
	tpnt->sg_tablesize = 
		(setup_sg_tablesize >= 0) ? setup_sg_tablesize : SG_TABLESIZE;

	if (setup_hostid >= 0)
		tpnt->this_id = setup_hostid;
	else {
		/* use 7 as default */
		tpnt->this_id = 7;
	}

	ioaddr = (unsigned long)ioremap(IOBASE_SUN3_SCSI, PAGE_SIZE);
	sun3_scsi_regp = (unsigned char *)ioaddr;

	dregs = (struct sun3_dma_regs *)(((unsigned char *)ioaddr) + 8);

	if((udc_regs = dvma_malloc(sizeof(struct sun3_udc_regs)))
	   == NULL) {
	     printk("SUN3 Scsi couldn't allocate DVMA memory!\n");
	     return 0;
	}
#ifdef OLDDMA
	if((dmabuf = dvma_malloc_align(SUN3_DVMA_BUFSIZE, 0x10000)) == NULL) {
	     printk("SUN3 Scsi couldn't allocate DVMA memory!\n");
	     return 0;
	}
#endif
#ifdef SUPPORT_TAGS
	if (setup_use_tagged_queuing < 0)
		setup_use_tagged_queuing = USE_TAGGED_QUEUING;
#endif

	instance = scsi_register (tpnt, sizeof(struct NCR5380_hostdata));
	if(instance == NULL)
		return 0;
		
	default_instance = instance;

        instance->io_port = (unsigned long) ioaddr;
	instance->irq = IRQ_SUN3_SCSI;

	NCR5380_init(instance, 0);

	instance->n_io_port = 32;

        ((struct NCR5380_hostdata *)instance->hostdata)->ctrl = 0;

	if (request_irq(instance->irq, scsi_sun3_intr,
			     0, "Sun3SCSI-5380", instance)) {
#ifndef REAL_DMA
		printk("scsi%d: IRQ%d not free, interrupts disabled\n",
		       instance->host_no, instance->irq);
		instance->irq = SCSI_IRQ_NONE;
#else
		printk("scsi%d: IRQ%d not free, bailing out\n",
		       instance->host_no, instance->irq);
		return 0;
#endif
	}
	
	printk("scsi%d: Sun3 5380 at port %lX irq", instance->host_no, instance->io_port);
	if (instance->irq == SCSI_IRQ_NONE)
		printk ("s disabled");
	else
		printk (" %d", instance->irq);
	printk(" options CAN_QUEUE=%d CMD_PER_LUN=%d release=%d",
	       instance->can_queue, instance->cmd_per_lun,
	       SUN3SCSI_PUBLIC_RELEASE);
	printk("\nscsi%d:", instance->host_no);
	NCR5380_print_options(instance);
	printk("\n");

	dregs->csr = 0;
	udelay(SUN3_DMA_DELAY);
	dregs->csr = CSR_SCSI | CSR_FIFO | CSR_INTR;
	udelay(SUN3_DMA_DELAY);
	dregs->fifo_count = 0;

	called = 1;

#ifdef RESET_BOOT
	sun3_scsi_reset_boot(instance);
#endif

	return 1;
}
Exemplo n.º 2
0
void 
ie_obio_attach(device_t parent, device_t self, void *args)
{
	struct ie_softc *sc = device_private(self);
	struct confargs *ca = args;

	sc->sc_dev = self;
	sc->hard_type = IE_OBIO;
	sc->reset_586 = ie_obreset;
	sc->chan_attn = ie_obattend;
	sc->run_586 = ie_obrun;
	sc->sc_memcpy = memcpy;
	sc->sc_memset = memset;

	/* Map in the control registers. */
	sc->sc_reg = bus_mapin(ca->ca_bustype,
	    ca->ca_paddr, sizeof(struct ieob));

	/*
	 * The on-board "ie" is wired-up such that its
	 * memory access goes to the high 16 megabytes
	 * of the on-board memory space (on-board DVMA).
	 */
	sc->sc_iobase = (void *)DVMA_OBIO_SLAVE_BASE;

	/*
	 * The on-board "ie" just uses main memory, so
	 * we can choose how much memory to give it.
	 * XXX: Would like to use less than 64K...
	 */
	sc->sc_msize = 0x8000; /* MEMSIZE 32K */

	/* Allocate "shared" memory (in DVMA space). */
	sc->sc_maddr = dvma_malloc(sc->sc_msize);
	if (sc->sc_maddr == NULL)
		panic(": not enough dvma space");

	/*
	 * Set the System Configuration Pointer (SCP).
	 * Its location is system-dependent because the
	 * i82586 reads it from a fixed physical address.
	 * On this hardware, the i82586 address maps to
	 * a 24-bit offset in on-board DVMA space. The
	 * SCP happens to fall in a page used by the
	 * PROM monitor, which the PROM knows about.
	 */
	sc->scp = (volatile void *)((char *)sc->sc_iobase + IE_SCP_ADDR);

	/*
	 * The rest of ram is used for buffers.
	 */
	sc->buf_area    = sc->sc_maddr;
	sc->buf_area_sz = sc->sc_msize;

	/* Install interrupt handler. */
	isr_add_autovect(ie_intr, sc, ca->ca_intpri);

	/* Set the ethernet address. */
	idprom_etheraddr(sc->sc_addr);

	/* Do machine-independent parts of attach. */
	ie_attach(sc);
}
Exemplo n.º 3
0
int sun3scsi_detect(Scsi_Host_Template * tpnt)
{
	unsigned long ioaddr, iopte;
	int count = 0;
	static int called = 0;
	struct Scsi_Host *instance;

	/* check that this machine has an onboard 5380 */
	switch(idprom->id_machtype) {
	case SM_SUN3|SM_3_50:
	case SM_SUN3|SM_3_60:
		break;

	default:
		return 0;
	}

	if(called)
		return 0;

	tpnt->proc_name = "Sun3 5380 SCSI";

	/* setup variables */
	tpnt->can_queue =
		(setup_can_queue > 0) ? setup_can_queue : CAN_QUEUE;
	tpnt->cmd_per_lun =
		(setup_cmd_per_lun > 0) ? setup_cmd_per_lun : CMD_PER_LUN;
	tpnt->sg_tablesize = 
		(setup_sg_tablesize >= 0) ? setup_sg_tablesize : SG_TABLESIZE;

	if (setup_hostid >= 0)
		tpnt->this_id = setup_hostid;
	else {
		/* use 7 as default */
		tpnt->this_id = 7;
	}

	/* Taken from Sammy's lance driver: */
        /* IOBASE_SUN3_SCSI can be found within the IO pmeg with some effort */
        for(ioaddr = 0xfe00000; ioaddr < (0xfe00000 + SUN3_PMEG_SIZE);
            ioaddr += SUN3_PTE_SIZE) {

                iopte = sun3_get_pte(ioaddr);
                if(!(iopte & SUN3_PAGE_TYPE_IO)) /* this an io page? */
                        continue;

                if(((iopte & SUN3_PAGE_PGNUM_MASK) << PAGE_SHIFT) ==
                   IOBASE_SUN3_SCSI) {
                        count = 1;
                        break;
                }
        }

	if(!count) {
		printk("No Sun3 NCR5380 found!\n");
		return 0;
	}

	sun3_scsi_regp = (unsigned char *)ioaddr;
	dregs = (struct sun3_dma_regs *)(((unsigned char *)ioaddr) + 8);

	if((udc_regs = dvma_malloc(sizeof(struct sun3_udc_regs)))
	   == NULL) {
	     printk("SUN3 Scsi couldn't allocate DVMA memory!\n");
	     return 0;
	}
#ifdef OLDDMA
	if((dmabuf = dvma_malloc_align(SUN3_DVMA_BUFSIZE, 0x10000)) == NULL) {
	     printk("SUN3 Scsi couldn't allocate DVMA memory!\n");
	     return 0;
	}
#endif
#ifdef SUPPORT_TAGS
	if (setup_use_tagged_queuing < 0)
		setup_use_tagged_queuing = DEFAULT_USE_TAGGED_QUEUING;
#endif

	instance = scsi_register (tpnt, sizeof(struct NCR5380_hostdata));
	if(instance == NULL)
		return 0;
		
	default_instance = instance;

        instance->io_port = (unsigned long) ioaddr;
	instance->irq = IRQ_SUN3_SCSI;

	NCR5380_init(instance, 0);

	instance->n_io_port = 32;

        ((struct NCR5380_hostdata *)instance->hostdata)->ctrl = 0;

	if (request_irq(instance->irq, scsi_sun3_intr,
			     0, "Sun3SCSI-5380", NULL)) {
#ifndef REAL_DMA
		printk("scsi%d: IRQ%d not free, interrupts disabled\n",
		       instance->host_no, instance->irq);
		instance->irq = IRQ_NONE;
#else
		printk("scsi%d: IRQ%d not free, bailing out\n",
		       instance->host_no, instance->irq);
		return 0;
#endif
	}
	
	printk("scsi%d: Sun3 5380 at port %lX 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",
	       instance->can_queue, instance->cmd_per_lun,
	       SUN3SCSI_PUBLIC_RELEASE);
	printk("\nscsi%d:", instance->host_no);
	NCR5380_print_options(instance);
	printk("\n");

	dregs->csr = 0;
	udelay(SUN3_DMA_DELAY);
	dregs->csr = CSR_SCSI | CSR_FIFO | CSR_INTR;
	udelay(SUN3_DMA_DELAY);
	dregs->fifo_count = 0;

	called = 1;
	return 1;
}
Exemplo n.º 4
0
/* Detecting ESP chips on the machine.  This is the simple and easy
 * version.
 */
int sun3x_esp_detect(struct scsi_host_template *tpnt)
{
	struct NCR_ESP *esp;
	struct ConfigDev *esp_dev;

	esp_dev = 0;
	esp = esp_allocate(tpnt, (void *) esp_dev);

	/* Do command transfer with DMA */
	esp->do_pio_cmds = 0;

	/* Required functions */
	esp->dma_bytes_sent = &dma_bytes_sent;
	esp->dma_can_transfer = &dma_can_transfer;
	esp->dma_dump_state = &dma_dump_state;
	esp->dma_init_read = &dma_init_read;
	esp->dma_init_write = &dma_init_write;
	esp->dma_ints_off = &dma_ints_off;
	esp->dma_ints_on = &dma_ints_on;
	esp->dma_irq_p = &dma_irq_p;
	esp->dma_ports_p = &dma_ports_p;
	esp->dma_setup = &dma_setup;

	/* Optional functions */
	esp->dma_barrier = &dma_barrier;
	esp->dma_invalidate = &dma_invalidate;
	esp->dma_drain = &dma_drain;
	esp->dma_irq_entry = 0;
	esp->dma_irq_exit = 0;
	esp->dma_led_on = 0;
	esp->dma_led_off = 0;
	esp->dma_poll = &dma_poll;
	esp->dma_reset = &dma_reset;

        /* virtual DMA functions */
        esp->dma_mmu_get_scsi_one = &dma_mmu_get_scsi_one;
        esp->dma_mmu_get_scsi_sgl = &dma_mmu_get_scsi_sgl;
        esp->dma_mmu_release_scsi_one = &dma_mmu_release_scsi_one;
        esp->dma_mmu_release_scsi_sgl = &dma_mmu_release_scsi_sgl;
        esp->dma_advance_sg = &dma_advance_sg;
	    
	/* SCSI chip speed */
	esp->cfreq = 20000000;
	esp->eregs = (struct ESP_regs *)(SUN3X_ESP_BASE);
	esp->dregs = (void *)SUN3X_ESP_DMA;

	esp->esp_command = (volatile unsigned char *)dvma_malloc(DVMA_PAGE_SIZE);
	esp->esp_command_dvma = dvma_vtob((unsigned long)esp->esp_command);

	esp->irq = 2;
	if (request_irq(esp->irq, esp_intr, SA_INTERRUPT, 
			"SUN3X SCSI", esp->ehost)) {
		esp_deallocate(esp);
		return 0;
	}

	esp->scsi_id = 7;
	esp->diff = 0;

	esp_initialize(esp);

 	/* for reasons beyond my knowledge (and which should likely be fixed)
 	   sync mode doesn't work on a 3/80 at 5mhz.  but it does at 4. */
 	esp->sync_defp = 0x3f;

	printk("ESP: Total of %d ESP hosts found, %d actually in use.\n", nesps,
	       esps_in_use);
	esps_running = esps_in_use;
	return esps_in_use;
}