* Changes :
*
* Marcelo Tosatti <marcelo@conectiva.com.br> : Added io_request_lock locking
- * Alan Cox <alan@redhat.com> : Cleaned up code formatting
+ * Alan Cox <alan@lxorguk.ukuu.org.uk> : Cleaned up code formatting
* Fixed an irq locking bug
* Added ISAPnP support
* Bjoern A. Zeeb <bzeeb@zabbadoz.net> : Initial irq locking updates
#include <linux/init.h>
#include <linux/string.h>
#include <linux/ioport.h>
-#include <linux/sched.h>
#include <linux/interrupt.h>
#include <linux/delay.h>
#include <linux/proc_fs.h>
#define sym53c416_base_2 sym53c416_2
#define sym53c416_base_3 sym53c416_3
-static unsigned int sym53c416_base[2] = {0,0};
-static unsigned int sym53c416_base_1[2] = {0,0};
-static unsigned int sym53c416_base_2[2] = {0,0};
-static unsigned int sym53c416_base_3[2] = {0,0};
+static unsigned int sym53c416_base[2];
+static unsigned int sym53c416_base_1[2];
+static unsigned int sym53c416_base_2[2];
+static unsigned int sym53c416_base_3[2];
#endif
#define MAXHOSTS 4
-#define SG_ADDRESS(buffer) ((char *) (page_address((buffer)->page)+(buffer)->offset))
+#define SG_ADDRESS(buffer) ((char *) sg_virt((buffer)))
enum phases
{
return orig_len - len;
}
-static irqreturn_t sym53c416_intr_handle(int irq, void *dev_id,
- struct pt_regs *regs)
+static irqreturn_t sym53c416_intr_handle(int irq, void *dev_id)
{
struct Scsi_Host *dev = dev_id;
- int base = 0;
+ int base = dev->io_port;
int i;
unsigned long flags = 0;
unsigned char status_reg, pio_int_reg, int_reg;
- struct scatterlist *sglist;
- unsigned int sgcount;
+ struct scatterlist *sg;
unsigned int tot_trans = 0;
- /* We search the base address of the host adapter which caused the interrupt */
- /* FIXME: should pass dev_id sensibly as hosts[i] */
- for(i = 0; i < host_index && !base; i++)
- if(irq == hosts[i].irq)
- base = hosts[i].base;
- /* If no adapter found, we cannot handle the interrupt. Leave a message */
- /* and continue. This should never happen... */
- if(!base)
- {
- printk(KERN_ERR "sym53c416: No host adapter defined for interrupt %d\n", irq);
- return IRQ_NONE;
- }
- /* Now we have the base address and we can start handling the interrupt */
-
spin_lock_irqsave(dev->host_lock,flags);
status_reg = inb(base + STATUS_REG);
pio_int_reg = inb(base + PIO_INT_REG);
{
current_command->SCp.phase = data_out;
outb(FLUSH_FIFO, base + COMMAND_REG);
- sym53c416_set_transfer_counter(base, current_command->request_bufflen);
+ sym53c416_set_transfer_counter(base,
+ scsi_bufflen(current_command));
outb(TRANSFER_INFORMATION | PIO_MODE, base + COMMAND_REG);
- if(!current_command->use_sg)
- tot_trans = sym53c416_write(base, current_command->request_buffer, current_command->request_bufflen);
- else
- {
- sgcount = current_command->use_sg;
- sglist = current_command->request_buffer;
- while(sgcount--)
- {
- tot_trans += sym53c416_write(base, SG_ADDRESS(sglist), sglist->length);
- sglist++;
- }
+
+ scsi_for_each_sg(current_command,
+ sg, scsi_sg_count(current_command), i) {
+ tot_trans += sym53c416_write(base,
+ SG_ADDRESS(sg),
+ sg->length);
}
if(tot_trans < current_command->underflow)
printk(KERN_WARNING "sym53c416: Underflow, wrote %d bytes, request for %d bytes.\n", tot_trans, current_command->underflow);
{
current_command->SCp.phase = data_in;
outb(FLUSH_FIFO, base + COMMAND_REG);
- sym53c416_set_transfer_counter(base, current_command->request_bufflen);
+ sym53c416_set_transfer_counter(base,
+ scsi_bufflen(current_command));
+
outb(TRANSFER_INFORMATION | PIO_MODE, base + COMMAND_REG);
- if(!current_command->use_sg)
- tot_trans = sym53c416_read(base, current_command->request_buffer, current_command->request_bufflen);
- else
- {
- sgcount = current_command->use_sg;
- sglist = current_command->request_buffer;
- while(sgcount--)
- {
- tot_trans += sym53c416_read(base, SG_ADDRESS(sglist), sglist->length);
- sglist++;
- }
+
+ scsi_for_each_sg(current_command,
+ sg, scsi_sg_count(current_command), i) {
+ tot_trans += sym53c416_read(base,
+ SG_ADDRESS(sg),
+ sg->length);
}
if(tot_trans < current_command->underflow)
printk(KERN_WARNING "sym53c416: Underflow, read %d bytes, request for %d bytes.\n", tot_trans, current_command->underflow);
}
}
-int __init sym53c416_detect(Scsi_Host_Template *tpnt)
+int __init sym53c416_detect(struct scsi_host_template *tpnt)
{
unsigned long flags;
struct Scsi_Host * shpnt = NULL;
int ints[3];
ints[0] = 2;
- if(sym53c416_base)
+ if(sym53c416_base[0])
{
ints[1] = sym53c416_base[0];
ints[2] = sym53c416_base[1];
sym53c416_setup(NULL, ints);
}
- if(sym53c416_base_1)
+ if(sym53c416_base_1[0])
{
ints[1] = sym53c416_base_1[0];
ints[2] = sym53c416_base_1[1];
sym53c416_setup(NULL, ints);
}
- if(sym53c416_base_2)
+ if(sym53c416_base_2[0])
{
ints[1] = sym53c416_base_2[0];
ints[2] = sym53c416_base_2[1];
sym53c416_setup(NULL, ints);
}
- if(sym53c416_base_3)
+ if(sym53c416_base_3[0])
{
ints[1] = sym53c416_base_3[0];
ints[2] = sym53c416_base_3[1];
current_command->SCp.Message = 0;
spin_lock_irqsave(&sym53c416_lock, flags);
- outb(SCpnt->device->id, base + DEST_BUS_ID); /* Set scsi id target */
+ outb(scmd_id(SCpnt), base + DEST_BUS_ID); /* Set scsi id target */
outb(FLUSH_FIFO, base + COMMAND_REG); /* Flush SCSI and PIO FIFO's */
/* Write SCSI command into the SCSI fifo */
for(i = 0; i < SCpnt->cmd_len; i++)
return 0;
}
-static int sym53c416_abort(Scsi_Cmnd *SCpnt)
-{
- return FAILED;
-}
-
-static int sym53c416_bus_reset(Scsi_Cmnd *SCpnt)
-{
- return FAILED;
-}
-
-static int sym53c416_device_reset(Scsi_Cmnd *SCpnt)
-{
- return FAILED;
-}
-
static int sym53c416_host_reset(Scsi_Cmnd *SCpnt)
{
int base;
int scsi_id = -1;
int i;
+ unsigned long flags;
+
+ spin_lock_irqsave(&sym53c416_lock, flags);
/* printk("sym53c416_reset\n"); */
base = SCpnt->device->host->io_port;
/* search scsi_id - fixme, we shouldnt need to iterate for this! */
- for(i = 0; i < host_index && scsi_id != -1; i++)
+ for(i = 0; i < host_index && scsi_id == -1; i++)
if(hosts[i].base == base)
scsi_id = hosts[i].scsi_id;
outb(RESET_CHIP, base + COMMAND_REG);
outb(NOOP | PIO_MODE, base + COMMAND_REG);
outb(RESET_SCSI_BUS, base + COMMAND_REG);
sym53c416_init(base, scsi_id);
+
+ spin_unlock_irqrestore(&sym53c416_lock, flags);
return SUCCESS;
}
#endif
-static Scsi_Host_Template driver_template = {
+static struct scsi_host_template driver_template = {
.proc_name = "sym53c416",
.name = "Symbios Logic 53c416",
.detect = sym53c416_detect,
.info = sym53c416_info,
.queuecommand = sym53c416_queuecommand,
- .eh_abort_handler = sym53c416_abort,
.eh_host_reset_handler =sym53c416_host_reset,
- .eh_bus_reset_handler = sym53c416_bus_reset,
- .eh_device_reset_handler =sym53c416_device_reset,
.release = sym53c416_release,
.bios_param = sym53c416_bios_param,
.can_queue = 1,
git://ftp.safe.ca / safe / jmp / linux-2.6 / blobdiff