static ssize_t
powertecscsi_store_term(struct device *dev, const char *buf, size_t len)
{
struct expansion_card *ec = ECARD_DEV(dev);
struct Scsi_Host *host = ecard_get_drvdata(ec);
if (len > 1)
powertecscsi_terminator_ctl(host, buf[0] != '0');
return len;
}
/* Prototype: int powertecscsi_set_proc_info(struct Scsi_Host *host, char *buffer, int length)
* Purpose : Set a driver specific function
* Params : host - host to setup
* : buffer - buffer containing string describing operation
* : length - length of string
* Returns : -EINVAL, or 0
*/
static int
powertecscsi_set_proc_info(struct Scsi_Host *host, char *buffer, int length)
{
int ret = length;
if (length >= 12 && strncmp(buffer, "POWERTECSCSI", 12) == 0) {
buffer += 12;
length -= 12;
if (length >= 5 && strncmp(buffer, "term=", 5) == 0) {
if (buffer[5] == '1')
powertecscsi_terminator_ctl(host, 1);
else if (buffer[5] == '0')
powertecscsi_terminator_ctl(host, 0);
else
ret = -EINVAL;
} else
ret = -EINVAL;
} else
ret = -EINVAL;
return ret;
}
static int
powertecscsi_probe(struct expansion_card *ec)
{
struct Scsi_Host *host;
struct powertec_info *info;
unsigned long base;
int ret;
base = ecard_address(ec, ECARD_IOC, ECARD_FAST);
request_region(base + POWERTEC_FAS216_OFFSET,
16 << POWERTEC_FAS216_SHIFT, "powertec2-fas");
host = scsi_register(&powertecscsi_template,
sizeof (struct powertec_info));
if (!host) {
ret = -ENOMEM;
goto out_region;
}
host->io_port = base;
host->irq = ec->irq;
host->dma_channel = ec->dma;
ec->irqaddr = (unsigned char *)ioaddr(base + POWERTEC_INTR_STATUS);
ec->irqmask = POWERTEC_INTR_BIT;
ec->irq_data = (void *)(base + POWERTEC_INTR_CONTROL);
ec->ops = (expansioncard_ops_t *)&powertecscsi_ops;
info = (struct powertec_info *)host->hostdata;
info->ec = ec;
info->term_port = base + POWERTEC_TERM_CONTROL;
powertecscsi_terminator_ctl(host, term[ec->slot_no]);
info->info.scsi.io_port = host->io_port + POWERTEC_FAS216_OFFSET;
info->info.scsi.io_shift = POWERTEC_FAS216_SHIFT;
info->info.scsi.irq = host->irq;
info->info.ifcfg.clockrate = 40; /* MHz */
info->info.ifcfg.select_timeout = 255;
info->info.ifcfg.asyncperiod = 200; /* ns */
info->info.ifcfg.sync_max_depth = 7;
info->info.ifcfg.cntl3 = CNTL3_BS8 | CNTL3_FASTSCSI | CNTL3_FASTCLK;
info->info.ifcfg.disconnect_ok = 1;
info->info.ifcfg.wide_max_size = 0;
info->info.ifcfg.capabilities = 0;
info->info.dma.setup = powertecscsi_dma_setup;
info->info.dma.pseudo = NULL;
info->info.dma.stop = powertecscsi_dma_stop;
ret = fas216_init(host);
if (ret)
goto out_free;
ret = request_irq(host->irq, powertecscsi_intr,
SA_INTERRUPT, "powertec", &info->info);
if (ret) {
printk("scsi%d: IRQ%d not free: %d\n",
host->host_no, host->irq, ret);
goto out_release;
}
if (host->dma_channel != NO_DMA) {
if (request_dma(host->dma_channel, "powertec")) {
printk("scsi%d: DMA%d not free, using PIO\n",
host->host_no, host->dma_channel);
host->dma_channel = NO_DMA;
} else {
set_dma_speed(host->dma_channel, 180);
info->info.ifcfg.capabilities |= FASCAP_DMA;
}
}
ret = fas216_add(host);
if (ret == 0)
goto out;
if (host->dma_channel != NO_DMA)
free_dma(host->dma_channel);
free_irq(host->irq, host);
out_release:
fas216_release(host);
out_free:
scsi_unregister(host);
out_region:
release_region(base + POWERTEC_FAS216_OFFSET,
16 << POWERTEC_FAS216_SHIFT);
out:
return ret;
}
static int __devinit
powertecscsi_probe(struct expansion_card *ec, const struct ecard_id *id)
{
struct Scsi_Host *host;
struct powertec_info *info;
unsigned long resbase, reslen;
void __iomem *base;
int ret;
ret = ecard_request_resources(ec);
if (ret)
goto out;
resbase = ecard_resource_start(ec, ECARD_RES_IOCFAST);
reslen = ecard_resource_len(ec, ECARD_RES_IOCFAST);
base = ioremap(resbase, reslen);
if (!base) {
ret = -ENOMEM;
goto out_region;
}
host = scsi_host_alloc(&powertecscsi_template,
sizeof (struct powertec_info));
if (!host) {
ret = -ENOMEM;
goto out_unmap;
}
ecard_set_drvdata(ec, host);
info = (struct powertec_info *)host->hostdata;
info->base = base;
powertecscsi_terminator_ctl(host, term[ec->slot_no]);
info->info.scsi.io_base = base + POWERTEC_FAS216_OFFSET;
info->info.scsi.io_shift = POWERTEC_FAS216_SHIFT;
info->info.scsi.irq = ec->irq;
info->info.scsi.dma = ec->dma;
info->info.ifcfg.clockrate = 40; /* MHz */
info->info.ifcfg.select_timeout = 255;
info->info.ifcfg.asyncperiod = 200; /* ns */
info->info.ifcfg.sync_max_depth = 7;
info->info.ifcfg.cntl3 = CNTL3_BS8 | CNTL3_FASTSCSI | CNTL3_FASTCLK;
info->info.ifcfg.disconnect_ok = 1;
info->info.ifcfg.wide_max_size = 0;
info->info.ifcfg.capabilities = 0;
info->info.dma.setup = powertecscsi_dma_setup;
info->info.dma.pseudo = NULL;
info->info.dma.stop = powertecscsi_dma_stop;
ec->irqaddr = base + POWERTEC_INTR_STATUS;
ec->irqmask = POWERTEC_INTR_BIT;
ec->irq_data = info;
ec->ops = &powertecscsi_ops;
device_create_file(&ec->dev, &dev_attr_bus_term);
ret = fas216_init(host);
if (ret)
goto out_free;
ret = request_irq(ec->irq, powertecscsi_intr,
SA_INTERRUPT, "powertec", info);
if (ret) {
printk("scsi%d: IRQ%d not free: %d\n",
host->host_no, ec->irq, ret);
goto out_release;
}
if (info->info.scsi.dma != NO_DMA) {
if (request_dma(info->info.scsi.dma, "powertec")) {
printk("scsi%d: DMA%d not free, using PIO\n",
host->host_no, info->info.scsi.dma);
info->info.scsi.dma = NO_DMA;
} else {
set_dma_speed(info->info.scsi.dma, 180);
info->info.ifcfg.capabilities |= FASCAP_DMA;
}
}
ret = fas216_add(host, &ec->dev);
if (ret == 0)
goto out;
if (info->info.scsi.dma != NO_DMA)
free_dma(info->info.scsi.dma);
free_irq(ec->irq, host);
out_release:
fas216_release(host);
out_free:
device_remove_file(&ec->dev, &dev_attr_bus_term);
scsi_host_put(host);
out_unmap:
iounmap(base);
out_region:
ecard_release_resources(ec);
out:
return ret;
}
/* Prototype: int powertecscsi_detect(Scsi_Host_Template * tpnt)
* Purpose : initialises PowerTec SCSI driver
* Params : tpnt - template for this SCSI adapter
* Returns : >0 if host found, 0 otherwise.
*/
int
powertecscsi_detect(Scsi_Host_Template *tpnt)
{
static const card_ids powertecscsi_cids[] =
{ POWERTECSCSI_LIST, { 0xffff, 0xffff} };
int count = 0;
struct Scsi_Host *host;
tpnt->proc_dir = &proc_scsi_powertec;
memset(ecs, 0, sizeof (ecs));
ecard_startfind();
while (1) {
PowerTecScsi_Info *info;
ecs[count] = ecard_find(0, powertecscsi_cids);
if (!ecs[count])
break;
ecard_claim(ecs[count]);
host = scsi_register(tpnt, sizeof (PowerTecScsi_Info));
if (!host) {
ecard_release(ecs[count]);
break;
}
host->io_port = ecard_address(ecs[count], ECARD_IOC, ECARD_FAST);
host->irq = ecs[count]->irq;
host->dma_channel = ecs[count]->dma;
info = (PowerTecScsi_Info *)host->hostdata;
info->control.term_port = host->io_port + POWERTEC_TERM_CONTROL;
info->control.terms = term[count] ? POWERTEC_TERM_ENABLE : 0;
powertecscsi_terminator_ctl(host, info->control.terms);
info->info.scsi.io_port =
host->io_port + POWERTEC_FAS216_OFFSET;
info->info.scsi.io_shift= POWERTEC_FAS216_SHIFT;
info->info.scsi.irq = host->irq;
info->info.ifcfg.clockrate = POWERTEC_XTALFREQ;
info->info.ifcfg.select_timeout = 255;
info->info.ifcfg.asyncperiod = POWERTEC_ASYNC_PERIOD;
info->info.ifcfg.sync_max_depth = POWERTEC_SYNC_DEPTH;
info->info.ifcfg.cntl3 = /*CNTL3_BS8 |*/ CNTL3_FASTSCSI | CNTL3_FASTCLK;
info->info.ifcfg.disconnect_ok = 1;
info->info.ifcfg.wide_max_size = 0;
info->info.dma.setup = powertecscsi_dma_setup;
info->info.dma.pseudo = NULL;
info->info.dma.stop = powertecscsi_dma_stop;
ecs[count]->irqaddr = (unsigned char *)
ioaddr(host->io_port + POWERTEC_INTR_STATUS);
ecs[count]->irqmask = POWERTEC_INTR_BIT;
ecs[count]->irq_data = (void *)
(host->io_port + POWERTEC_INTR_CONTROL);
ecs[count]->ops = (expansioncard_ops_t *)&powertecscsi_ops;
request_region(host->io_port + POWERTEC_FAS216_OFFSET,
16 << POWERTEC_FAS216_SHIFT, "powertec2-fas");
if (host->irq != NO_IRQ &&
request_irq(host->irq, powertecscsi_intr,
SA_INTERRUPT, "powertec", host)) {
printk("scsi%d: IRQ%d not free, interrupts disabled\n",
host->host_no, host->irq);
host->irq = NO_IRQ;
info->info.scsi.irq = NO_IRQ;
}
if (host->dma_channel != NO_DMA &&
request_dma(host->dma_channel, "powertec")) {
printk("scsi%d: DMA%d not free, DMA disabled\n",
host->host_no, host->dma_channel);
host->dma_channel = NO_DMA;
}
fas216_init(host);
++count;
}
return count;
}