patch-2.4.6 linux/drivers/scsi/sym53c416.c
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- Lines: 1217
- Date:
Wed Jun 27 17:10:55 2001
- Orig file:
v2.4.5/linux/drivers/scsi/sym53c416.c
- Orig date:
Tue Mar 6 19:44:37 2001
diff -u --recursive --new-file v2.4.5/linux/drivers/scsi/sym53c416.c linux/drivers/scsi/sym53c416.c
@@ -6,6 +6,9 @@
* Changes :
*
* Marcelo Tosatti <marcelo@conectiva.com.br> : Added io_request_lock locking
+ * Alan Cox <alan@redhat.com> : Cleaned up code formatting
+ * Fixed an irq locking bug
+ * Added ISAPnP support
*
* LILO command line usage: sym53c416=<PORTBASE>[,<IRQ>]
*
@@ -36,12 +39,13 @@
#include <asm/io.h>
#include <linux/blk.h>
#include <linux/version.h>
+#include <linux/isapnp.h>
#include "scsi.h"
#include "hosts.h"
#include "sd.h"
#include "sym53c416.h"
-#define VERSION_STRING "Version 1.0.0"
+#define VERSION_STRING "Version 1.0.0-ac"
#define TC_LOW 0x00 /* Transfer counter low */
#define TC_MID 0x01 /* Transfer counter mid */
@@ -203,24 +207,24 @@
#define MAXHOSTS 4
enum phases
- {
- idle,
- data_out,
- data_in,
- command_ph,
- status_ph,
- message_out,
- message_in
- };
+{
+ idle,
+ data_out,
+ data_in,
+ command_ph,
+ status_ph,
+ message_out,
+ message_in
+};
typedef struct
- {
- int base;
- int irq;
- int scsi_id;
- } host;
+{
+ int base;
+ int irq;
+ int scsi_id;
+} host;
-host hosts[MAXHOSTS] = {
+static host hosts[MAXHOSTS] = {
{0, 0, SYM53C416_SCSI_ID},
{0, 0, SYM53C416_SCSI_ID},
{0, 0, SYM53C416_SCSI_ID},
@@ -228,579 +232,616 @@
};
static int host_index = 0;
-
static char info[120];
-
static Scsi_Cmnd *current_command = NULL;
+static int fastpio = 1;
-int fastpio = 1;
-
-int probeaddrs[] = {0x200, 0x220, 0x240, 0};
+static int probeaddrs[] = {0x200, 0x220, 0x240, 0};
static void sym53c416_set_transfer_counter(int base, unsigned int len)
- {
- /* Program Transfer Counter */
- outb(len & 0x0000FF, base + TC_LOW);
- outb((len & 0x00FF00) >> 8, base + TC_MID);
- outb((len & 0xFF0000) >> 16, base + TC_HIGH);
- }
+{
+ /* Program Transfer Counter */
+ outb(len & 0x0000FF, base + TC_LOW);
+ outb((len & 0x00FF00) >> 8, base + TC_MID);
+ outb((len & 0xFF0000) >> 16, base + TC_HIGH);
+}
/* Returns the number of bytes read */
static __inline__ unsigned int sym53c416_read(int base, unsigned char *buffer, unsigned int len)
- {
- unsigned int orig_len = len;
- unsigned long flags = 0;
- unsigned int bytes_left;
- int i;
- int timeout = READ_TIMEOUT;
-
- /* Do transfer */
- save_flags(flags);
- cli();
- while(len && timeout)
- {
- bytes_left = inb(base + PIO_FIFO_CNT); /* Number of bytes in the PIO FIFO */
- if(fastpio && bytes_left > 3)
- {
- insl(base + PIO_FIFO_1, buffer, bytes_left >> 2);
- buffer += bytes_left & 0xFC;
- len -= bytes_left & 0xFC;
- }
- else if(bytes_left > 0)
- {
- len -= bytes_left;
- for(; bytes_left > 0; bytes_left--)
- *(buffer++) = inb(base + PIO_FIFO_1);
- }
- else
- {
- i = jiffies + timeout;
- restore_flags(flags);
- while(jiffies < i && (inb(base + PIO_INT_REG) & EMPTY) && timeout)
- if(inb(base + PIO_INT_REG) & SCI)
- timeout = 0;
- save_flags(flags);
- cli();
- if(inb(base + PIO_INT_REG) & EMPTY)
- timeout = 0;
- }
- }
- restore_flags(flags);
- return orig_len - len;
- }
+{
+ unsigned int orig_len = len;
+ unsigned long flags = 0;
+ unsigned int bytes_left;
+ int i;
+ int timeout = READ_TIMEOUT;
+
+ /* Do transfer */
+ save_flags(flags);
+ cli();
+ while(len && timeout)
+ {
+ bytes_left = inb(base + PIO_FIFO_CNT); /* Number of bytes in the PIO FIFO */
+ if(fastpio && bytes_left > 3)
+ {
+ insl(base + PIO_FIFO_1, buffer, bytes_left >> 2);
+ buffer += bytes_left & 0xFC;
+ len -= bytes_left & 0xFC;
+ }
+ else if(bytes_left > 0)
+ {
+ len -= bytes_left;
+ for(; bytes_left > 0; bytes_left--)
+ *(buffer++) = inb(base + PIO_FIFO_1);
+ }
+ else
+ {
+ i = jiffies + timeout;
+ restore_flags(flags);
+ while(jiffies < i && (inb(base + PIO_INT_REG) & EMPTY) && timeout)
+ if(inb(base + PIO_INT_REG) & SCI)
+ timeout = 0;
+ save_flags(flags);
+ cli();
+ if(inb(base + PIO_INT_REG) & EMPTY)
+ timeout = 0;
+ }
+ }
+ restore_flags(flags);
+ return orig_len - len;
+}
/* Returns the number of bytes written */
static __inline__ unsigned int sym53c416_write(int base, unsigned char *buffer, unsigned int len)
- {
- unsigned int orig_len = len;
- unsigned long flags = 0;
- unsigned int bufferfree;
- unsigned int i;
- unsigned int timeout = WRITE_TIMEOUT;
-
- /* Do transfer */
- save_flags(flags);
- cli();
- while(len && timeout)
- {
- bufferfree = PIO_SIZE - inb(base + PIO_FIFO_CNT);
- if(bufferfree > len)
- bufferfree = len;
- if(fastpio && bufferfree > 3)
- {
- outsl(base + PIO_FIFO_1, buffer, bufferfree >> 2);
- buffer += bufferfree & 0xFC;
- len -= bufferfree & 0xFC;
- }
- else if(bufferfree > 0)
- {
- len -= bufferfree;
- for(; bufferfree > 0; bufferfree--)
- outb(*(buffer++), base + PIO_FIFO_1);
- }
- else
- {
- i = jiffies + timeout;
- restore_flags(flags);
- while(jiffies < i && (inb(base + PIO_INT_REG) & FULL) && timeout)
- ;
- save_flags(flags);
- cli();
- if(inb(base + PIO_INT_REG) & FULL)
- timeout = 0;
- }
- }
- restore_flags(flags);
- return orig_len - len;
- }
+{
+ unsigned int orig_len = len;
+ unsigned long flags = 0;
+ unsigned int bufferfree;
+ unsigned int i;
+ unsigned int timeout = WRITE_TIMEOUT;
+
+ /* Do transfer */
+ save_flags(flags);
+ cli();
+ while(len && timeout)
+ {
+ bufferfree = PIO_SIZE - inb(base + PIO_FIFO_CNT);
+ if(bufferfree > len)
+ bufferfree = len;
+ if(fastpio && bufferfree > 3)
+ {
+ outsl(base + PIO_FIFO_1, buffer, bufferfree >> 2);
+ buffer += bufferfree & 0xFC;
+ len -= bufferfree & 0xFC;
+ }
+ else if(bufferfree > 0)
+ {
+ len -= bufferfree;
+ for(; bufferfree > 0; bufferfree--)
+ outb(*(buffer++), base + PIO_FIFO_1);
+ }
+ else
+ {
+ i = jiffies + timeout;
+ restore_flags(flags);
+ while(jiffies < i && (inb(base + PIO_INT_REG) & FULL) && timeout)
+ ;
+ save_flags(flags);
+ cli();
+ if(inb(base + PIO_INT_REG) & FULL)
+ timeout = 0;
+ }
+ }
+ restore_flags(flags);
+ return orig_len - len;
+}
static void sym53c416_intr_handle(int irq, void *dev_id, struct pt_regs *regs)
- {
- int base = 0;
- int i;
- unsigned long flags = 0;
- unsigned char status_reg, pio_int_reg, int_reg;
- struct scatterlist *sglist;
- unsigned int sgcount;
- unsigned int tot_trans = 0;
-
- /* We search the base address of the host adapter which caused the interrupt */
- 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("sym53c416: No host adapter defined for interrupt %d\n", irq);
- return;
- }
- /* Now we have the base address and we can start handling the interrupt */
- save_flags(flags);
- cli();
- status_reg = inb(base + STATUS_REG);
- pio_int_reg = inb(base + PIO_INT_REG);
- int_reg = inb(base + INT_REG);
- restore_flags(flags);
-
- /* First, we handle error conditions */
- if(int_reg & SCI) /* SCSI Reset */
- {
- printk("sym53c416: Warning: Reset received\n");
- current_command->SCp.phase = idle;
- current_command->result = DID_RESET << 16;
- spin_lock_irqsave(&io_request_lock, flags);
- current_command->scsi_done(current_command);
- spin_unlock_irqrestore(&io_request_lock, flags);
- return;
- }
- if(int_reg & ILCMD) /* Illegal Command */
- {
- printk("sym53c416: Warning: Illegal Command: 0x%02x\n", inb(base + COMMAND_REG));
- current_command->SCp.phase = idle;
- current_command->result = DID_ERROR << 16;
- spin_lock_irqsave(&io_request_lock, flags);
- current_command->scsi_done(current_command);
- spin_unlock_irqrestore(&io_request_lock, flags);
- return;
- }
- if(status_reg & GE) /* Gross Error */
- {
- printk("sym53c416: Warning: Gross Error\n");
- current_command->SCp.phase = idle;
- current_command->result = DID_ERROR << 16;
- spin_lock_irqsave(&io_request_lock, flags);
- current_command->scsi_done(current_command);
- spin_unlock_irqrestore(&io_request_lock, flags);
- return;
- }
- if(status_reg & PE) /* Parity Error */
- {
- printk("sym53c416: Warning: Parity Error\n");
- current_command->SCp.phase = idle;
- current_command->result = DID_PARITY << 16;
- spin_lock_irqsave(&io_request_lock, flags);
- current_command->scsi_done(current_command);
- spin_unlock_irqrestore(&io_request_lock, flags);
- return;
- }
- if(pio_int_reg & (CE | OUE))
- {
- printk("sym53c416: Warning: PIO Interrupt Error\n");
- current_command->SCp.phase = idle;
- current_command->result = DID_ERROR << 16;
- spin_lock_irqsave(&io_request_lock, flags);
- current_command->scsi_done(current_command);
- spin_unlock_irqrestore(&io_request_lock, flags);
- return;
- }
- if(int_reg & DIS) /* Disconnect */
- {
- if(current_command->SCp.phase != message_in)
- current_command->result = DID_NO_CONNECT << 16;
- else
- current_command->result = (current_command->SCp.Status & 0xFF) | ((current_command->SCp.Message & 0xFF) << 8) | (DID_OK << 16);
- current_command->SCp.phase = idle;
-
- spin_lock_irqsave(&io_request_lock, flags);
- current_command->scsi_done(current_command);
- spin_unlock_irqrestore(&io_request_lock, flags);
- return;
- }
- /* Now we handle SCSI phases */
- switch(status_reg & PHBITS) /* Filter SCSI phase out of status reg */
- {
- case PHASE_DATA_OUT:
- {
- if(int_reg & BS)
- {
- current_command->SCp.phase = data_out;
- outb(FLUSH_FIFO, base + COMMAND_REG);
- sym53c416_set_transfer_counter(base, current_command->request_bufflen);
- 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, sglist->address, sglist->length);
- sglist++;
- }
- }
- if(tot_trans < current_command->underflow)
- printk("sym53c416: Warning: underflow, wrote %d bytes, request for %d bytes\n", tot_trans, current_command->underflow);
- }
- break;
- }
- case PHASE_DATA_IN:
- {
- if(int_reg & BS)
- {
- current_command->SCp.phase = data_in;
- outb(FLUSH_FIFO, base + COMMAND_REG);
- sym53c416_set_transfer_counter(base, current_command->request_bufflen);
- 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, sglist->address, sglist->length);
- sglist++;
- }
- }
- if(tot_trans < current_command->underflow)
- printk("sym53c416: Warning: underflow, read %d bytes, request for %d bytes\n", tot_trans, current_command->underflow);
- }
- break;
- }
- case PHASE_COMMAND:
- {
- current_command->SCp.phase = command_ph;
- printk("sym53c416: Warning: Unknown interrupt in command phase\n");
- break;
- }
- case PHASE_STATUS:
- {
- current_command->SCp.phase = status_ph;
- outb(FLUSH_FIFO, base + COMMAND_REG);
- outb(INIT_COMM_COMPLETE_SEQ, base + COMMAND_REG);
- break;
- }
- case PHASE_RESERVED_1:
- case PHASE_RESERVED_2:
- {
- printk("sym53c416: Warning: Reserved phase\n");
- break;
- }
- case PHASE_MESSAGE_OUT:
- {
- current_command->SCp.phase = message_out;
- outb(SET_ATN, base + COMMAND_REG);
- outb(MSG_ACCEPTED, base + COMMAND_REG);
- break;
- }
- case PHASE_MESSAGE_IN:
- {
- current_command->SCp.phase = message_in;
- current_command->SCp.Status = inb(base + SCSI_FIFO);
- current_command->SCp.Message = inb(base + SCSI_FIFO);
- if(current_command->SCp.Message == SAVE_POINTERS || current_command->SCp.Message == DISCONNECT)
- outb(SET_ATN, base + COMMAND_REG);
- outb(MSG_ACCEPTED, base + COMMAND_REG);
- break;
- }
- }
- }
+{
+ int base = 0;
+ int i;
+ unsigned long flags = 0;
+ unsigned char status_reg, pio_int_reg, int_reg;
+ struct scatterlist *sglist;
+ unsigned int sgcount;
+ 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;
+ }
+ /* Now we have the base address and we can start handling the interrupt */
+
+ spin_lock_irqsave(&io_request_lock,flags);
+ status_reg = inb(base + STATUS_REG);
+ pio_int_reg = inb(base + PIO_INT_REG);
+ int_reg = inb(base + INT_REG);
+ spin_unlock_irqrestore(&io_request_lock, flags);
+
+ /* First, we handle error conditions */
+ if(int_reg & SCI) /* SCSI Reset */
+ {
+ printk(KERN_DEBUG "sym53c416: Reset received\n");
+ current_command->SCp.phase = idle;
+ current_command->result = DID_RESET << 16;
+ spin_lock_irqsave(&io_request_lock, flags);
+ current_command->scsi_done(current_command);
+ spin_unlock_irqrestore(&io_request_lock, flags);
+ return;
+ }
+ if(int_reg & ILCMD) /* Illegal Command */
+ {
+ printk(KERN_WARNING "sym53c416: Illegal Command: 0x%02x.\n", inb(base + COMMAND_REG));
+ current_command->SCp.phase = idle;
+ current_command->result = DID_ERROR << 16;
+ spin_lock_irqsave(&io_request_lock, flags);
+ current_command->scsi_done(current_command);
+ spin_unlock_irqrestore(&io_request_lock, flags);
+ return;
+ }
+ if(status_reg & GE) /* Gross Error */
+ {
+ printk(KERN_WARNING "sym53c416: Controller reports gross error.\n");
+ current_command->SCp.phase = idle;
+ current_command->result = DID_ERROR << 16;
+ spin_lock_irqsave(&io_request_lock, flags);
+ current_command->scsi_done(current_command);
+ spin_unlock_irqrestore(&io_request_lock, flags);
+ return;
+ }
+ if(status_reg & PE) /* Parity Error */
+ {
+ printk(KERN_WARNING "sym53c416:SCSI parity error.\n");
+ current_command->SCp.phase = idle;
+ current_command->result = DID_PARITY << 16;
+ spin_lock_irqsave(&io_request_lock, flags);
+ current_command->scsi_done(current_command);
+ spin_unlock_irqrestore(&io_request_lock, flags);
+ return;
+ }
+ if(pio_int_reg & (CE | OUE))
+ {
+ printk(KERN_WARNING "sym53c416: PIO interrupt error.\n");
+ current_command->SCp.phase = idle;
+ current_command->result = DID_ERROR << 16;
+ spin_lock_irqsave(&io_request_lock, flags);
+ current_command->scsi_done(current_command);
+ spin_unlock_irqrestore(&io_request_lock, flags);
+ return;
+ }
+ if(int_reg & DIS) /* Disconnect */
+ {
+ if(current_command->SCp.phase != message_in)
+ current_command->result = DID_NO_CONNECT << 16;
+ else
+ current_command->result = (current_command->SCp.Status & 0xFF) | ((current_command->SCp.Message & 0xFF) << 8) | (DID_OK << 16);
+ current_command->SCp.phase = idle;
+ spin_lock_irqsave(&io_request_lock, flags);
+ current_command->scsi_done(current_command);
+ spin_unlock_irqrestore(&io_request_lock, flags);
+ return;
+ }
+ /* Now we handle SCSI phases */
+
+ switch(status_reg & PHBITS) /* Filter SCSI phase out of status reg */
+ {
+ case PHASE_DATA_OUT:
+ {
+ if(int_reg & BS)
+ {
+ current_command->SCp.phase = data_out;
+ outb(FLUSH_FIFO, base + COMMAND_REG);
+ sym53c416_set_transfer_counter(base, current_command->request_bufflen);
+ 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, sglist->address, sglist->length);
+ sglist++;
+ }
+ }
+ if(tot_trans < current_command->underflow)
+ printk(KERN_WARNING "sym53c416: Underflow, wrote %d bytes, request for %d bytes.\n", tot_trans, current_command->underflow);
+ }
+ break;
+ }
+
+ case PHASE_DATA_IN:
+ {
+ if(int_reg & BS)
+ {
+ current_command->SCp.phase = data_in;
+ outb(FLUSH_FIFO, base + COMMAND_REG);
+ sym53c416_set_transfer_counter(base, current_command->request_bufflen);
+ 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, sglist->address, sglist->length);
+ sglist++;
+ }
+ }
+ if(tot_trans < current_command->underflow)
+ printk(KERN_WARNING "sym53c416: Underflow, read %d bytes, request for %d bytes.\n", tot_trans, current_command->underflow);
+ }
+ break;
+ }
+
+ case PHASE_COMMAND:
+ {
+ current_command->SCp.phase = command_ph;
+ printk(KERN_ERR "sym53c416: Unknown interrupt in command phase.\n");
+ break;
+ }
+
+ case PHASE_STATUS:
+ {
+ current_command->SCp.phase = status_ph;
+ outb(FLUSH_FIFO, base + COMMAND_REG);
+ outb(INIT_COMM_COMPLETE_SEQ, base + COMMAND_REG);
+ break;
+ }
+
+ case PHASE_RESERVED_1:
+ case PHASE_RESERVED_2:
+ {
+ printk(KERN_ERR "sym53c416: Reserved phase occurred.\n");
+ break;
+ }
+
+ case PHASE_MESSAGE_OUT:
+ {
+ current_command->SCp.phase = message_out;
+ outb(SET_ATN, base + COMMAND_REG);
+ outb(MSG_ACCEPTED, base + COMMAND_REG);
+ break;
+ }
+
+ case PHASE_MESSAGE_IN:
+ {
+ current_command->SCp.phase = message_in;
+ current_command->SCp.Status = inb(base + SCSI_FIFO);
+ current_command->SCp.Message = inb(base + SCSI_FIFO);
+ if(current_command->SCp.Message == SAVE_POINTERS || current_command->SCp.Message == DISCONNECT)
+ outb(SET_ATN, base + COMMAND_REG);
+ outb(MSG_ACCEPTED, base + COMMAND_REG);
+ break;
+ }
+ }
+}
static void sym53c416_init(int base, int scsi_id)
- {
- outb(RESET_CHIP, base + COMMAND_REG);
- outb(NOOP, base + COMMAND_REG);
- outb(0x99, base + TOM); /* Time out of 250 ms */
- outb(0x05, base + STP);
- outb(0x00, base + SYNC_OFFSET);
- outb(EPC | scsi_id, base + CONF_REG_1);
- outb(FE | SCSI2 | TBPA, base + CONF_REG_2);
- outb(IDMRC | QTE | CDB10 | FSCSI | FCLK, base + CONF_REG_3);
- outb(0x83 | EAN, base + CONF_REG_4);
- outb(IE | WSE0, base + CONF_REG_5);
- outb(0, base + FEATURE_EN);
- }
+{
+ outb(RESET_CHIP, base + COMMAND_REG);
+ outb(NOOP, base + COMMAND_REG);
+ outb(0x99, base + TOM); /* Time out of 250 ms */
+ outb(0x05, base + STP);
+ outb(0x00, base + SYNC_OFFSET);
+ outb(EPC | scsi_id, base + CONF_REG_1);
+ outb(FE | SCSI2 | TBPA, base + CONF_REG_2);
+ outb(IDMRC | QTE | CDB10 | FSCSI | FCLK, base + CONF_REG_3);
+ outb(0x83 | EAN, base + CONF_REG_4);
+ outb(IE | WSE0, base + CONF_REG_5);
+ outb(0, base + FEATURE_EN);
+}
static int sym53c416_probeirq(int base, int scsi_id)
- {
- int irq, irqs, i;
+{
+ int irq, irqs, i;
- /* Clear interrupt register */
- inb(base + INT_REG);
- /* Start probing for irq's */
- irqs = probe_irq_on();
- /* Reinit chip */
- sym53c416_init(base, scsi_id);
- /* Cause interrupt */
- outb(NOOP, base + COMMAND_REG);
- outb(ILLEGAL, base + COMMAND_REG);
- outb(0x07, base + DEST_BUS_ID);
- outb(0x00, base + DEST_BUS_ID);
- /* Wait for interrupt to occur */
- i = jiffies + 20;
- while(i > jiffies && !(inb(base + STATUS_REG) & SCI))
- barrier();
- if(i <= jiffies) /* timed out */
- return 0;
- /* Get occurred irq */
- irq = probe_irq_off(irqs);
- sym53c416_init(base, scsi_id);
- return irq;
- }
+ /* Clear interrupt register */
+ inb(base + INT_REG);
+ /* Start probing for irq's */
+ irqs = probe_irq_on();
+ /* Reinit chip */
+ sym53c416_init(base, scsi_id);
+ /* Cause interrupt */
+ outb(NOOP, base + COMMAND_REG);
+ outb(ILLEGAL, base + COMMAND_REG);
+ outb(0x07, base + DEST_BUS_ID);
+ outb(0x00, base + DEST_BUS_ID);
+ /* Wait for interrupt to occur */
+ i = jiffies + 20;
+ while(i > jiffies && !(inb(base + STATUS_REG) & SCI))
+ barrier();
+ if(i <= jiffies) /* timed out */
+ return 0;
+ /* Get occurred irq */
+ irq = probe_irq_off(irqs);
+ sym53c416_init(base, scsi_id);
+ return irq;
+}
/* Setup: sym53c416=base,irq */
void sym53c416_setup(char *str, int *ints)
- {
- int i;
+{
+ int i;
- if(host_index >= MAXHOSTS)
- {
- printk("sym53c416.c: Too many hosts defined\n");
- }
- else
- {
- if(ints[0] < 1 || ints[0] > 2)
- {
- printk("sym53c416.c: Wrong number of parameters:\n");
- printk("sym53c416.c: usage: sym53c416=<base>[,<irq>]\n");
- }
- else
- {
- for(i = 0; i < host_index && i >= 0; i++)
- if(hosts[i].base == ints[1])
- i = -2;
- if(i >= 0)
- {
- hosts[host_index].base = ints[1];
- hosts[host_index].irq = (ints[0] == 2)? ints[2] : 0;
- host_index++;
- }
- }
- }
- }
+ if(host_index >= MAXHOSTS)
+ {
+ printk(KERN_WARNING "sym53c416: Too many hosts defined\n");
+ return;
+ }
+ if(ints[0] < 1 || ints[0] > 2)
+ {
+ printk(KERN_ERR "sym53c416: Wrong number of parameters:\n");
+ printk(KERN_ERR "sym53c416: usage: sym53c416=<base>[,<irq>]\n");
+ return;
+ }
+ for(i = 0; i < host_index && i >= 0; i++)
+ if(hosts[i].base == ints[1])
+ i = -2;
+ if(i >= 0)
+ {
+ hosts[host_index].base = ints[1];
+ hosts[host_index].irq = (ints[0] == 2)? ints[2] : 0;
+ host_index++;
+ }
+}
static int sym53c416_test(int base)
- {
- outb(RESET_CHIP, base + COMMAND_REG);
- outb(NOOP, base + COMMAND_REG);
- if(inb(base + COMMAND_REG) != NOOP)
- return 0;
- if(!inb(base + TC_HIGH) || inb(base + TC_HIGH) == 0xFF)
- return 0;
- if((inb(base + PIO_INT_REG) & (FULL | EMPTY | CE | OUE | FIE | EIE)) != EMPTY)
- return 0;
- return 1;
- }
+{
+ outb(RESET_CHIP, base + COMMAND_REG);
+ outb(NOOP, base + COMMAND_REG);
+ if(inb(base + COMMAND_REG) != NOOP)
+ return 0;
+ if(!inb(base + TC_HIGH) || inb(base + TC_HIGH) == 0xFF)
+ return 0;
+ if((inb(base + PIO_INT_REG) & (FULL | EMPTY | CE | OUE | FIE | EIE)) != EMPTY)
+ return 0;
+ return 1;
+}
+
+
+static struct isapnp_device_id id_table[] = {
+ { ISAPNP_ANY_ID, ISAPNP_ANY_ID,
+ ISAPNP_VENDOR('S','L','I'), ISAPNP_FUNCTION(0x4163), 0 },
+ {0}
+};
+
+MODULE_DEVICE_TABLE(isapnp, id_table);
void sym53c416_probe(void)
- {
- int *base = probeaddrs;
- int ints[2];
-
- ints[0] = 1;
- for(; *base; base++)
- if(!check_region(*base, IO_RANGE) && sym53c416_test(*base))
- {
- ints[1] = *base;
- sym53c416_setup(NULL, ints);
- }
- }
+{
+ int *base = probeaddrs;
+ int ints[2];
+
+ ints[0] = 1;
+ for(; *base; base++)
+ {
+ if(!check_region(*base, IO_RANGE) && sym53c416_test(*base))
+ {
+ ints[1] = *base;
+ sym53c416_setup(NULL, ints);
+ }
+ }
+}
int sym53c416_detect(Scsi_Host_Template *tpnt)
- {
- unsigned long flags;
- struct Scsi_Host * shpnt = NULL;
- int i;
- int count;
-
+{
+ unsigned long flags;
+ struct Scsi_Host * shpnt = NULL;
+ int i;
+ int count;
+ struct pci_dev *idev = NULL;
+
#ifdef MODULE
- int ints[3];
+ int ints[3];
- ints[0] = 2;
- if(sym53c416_base)
- {
- ints[1] = sym53c416_base[0];
- ints[2] = sym53c416_base[1];
- sym53c416_setup(NULL, ints);
- }
- if(sym53c416_base_1)
- {
- ints[1] = sym53c416_base_1[0];
- ints[2] = sym53c416_base_1[1];
- sym53c416_setup(NULL, ints);
- }
- if(sym53c416_base_2)
- {
- ints[1] = sym53c416_base_2[0];
- ints[2] = sym53c416_base_2[1];
- sym53c416_setup(NULL, ints);
- }
- if(sym53c416_base_3)
- {
- ints[1] = sym53c416_base_3[0];
- ints[2] = sym53c416_base_3[1];
- sym53c416_setup(NULL, ints);
- }
+ ints[0] = 2;
+ if(sym53c416_base)
+ {
+ ints[1] = sym53c416_base[0];
+ ints[2] = sym53c416_base[1];
+ sym53c416_setup(NULL, ints);
+ }
+ if(sym53c416_base_1)
+ {
+ ints[1] = sym53c416_base_1[0];
+ ints[2] = sym53c416_base_1[1];
+ sym53c416_setup(NULL, ints);
+ }
+ if(sym53c416_base_2)
+ {
+ ints[1] = sym53c416_base_2[0];
+ ints[2] = sym53c416_base_2[1];
+ sym53c416_setup(NULL, ints);
+ }
+ if(sym53c416_base_3)
+ {
+ ints[1] = sym53c416_base_3[0];
+ ints[2] = sym53c416_base_3[1];
+ sym53c416_setup(NULL, ints);
+ }
#endif
+ printk(KERN_INFO "sym53c416.c: %s\n", VERSION_STRING);
- printk("sym53c416.c: %s\n", VERSION_STRING);
-
- sym53c416_probe();
-
- /* Now we register and set up each host adapter found... */
- for(count = 0, i = 0; i < host_index; i++)
- if(!sym53c416_test(hosts[i].base))
- printk("No sym53c416 found at address 0x%03x\n", hosts[i].base);
- else
- {
- if(hosts[i].irq == 0)
- /* We don't have an irq yet, so we should probe for one */
- if((hosts[i].irq = sym53c416_probeirq(hosts[i].base, hosts[i].scsi_id)) == 0)
- printk("irq autoprobing failed for sym53c416 at address 0x%03x\n", hosts[i].base);
- if(hosts[i].irq && !check_region(hosts[i].base, IO_RANGE))
- {
- shpnt = scsi_register(tpnt, 0);
- if(shpnt==NULL)
- continue;
- save_flags(flags);
- cli();
- /* Request for specified IRQ */
- if(request_irq(hosts[i].irq, sym53c416_intr_handle, 0, ID, NULL))
- {
- restore_flags(flags);
- printk("Unable to assign IRQ %d\n", hosts[i].irq);
- scsi_unregister(shpnt);
- }
- else
- {
- /* Inform the kernel of our IO range */
- request_region(hosts[i].base, IO_RANGE, ID);
- shpnt->unique_id = hosts[i].base;
- shpnt->io_port = hosts[i].base;
- shpnt->n_io_port = IO_RANGE;
- shpnt->irq = hosts[i].irq;
- shpnt->this_id = hosts[i].scsi_id;
- sym53c416_init(hosts[i].base, hosts[i].scsi_id);
- count++;
- restore_flags(flags);
- }
- }
- }
- return count;
- }
+ while((idev=isapnp_find_dev(NULL, ISAPNP_VENDOR('S','L','I'),
+ ISAPNP_FUNCTION(0x4163), idev))!=NULL)
+ {
+ int i[3];
+
+ if(idev->prepare(idev)<0)
+ {
+ printk(KERN_WARNING "sym53c416: unable to prepare PnP card.\n");
+ continue;
+ }
+ if(idev->activate(idev)<0)
+ {
+ printk(KERN_WARNING "sym53c416: unable to activate PnP card.\n");
+ continue;
+ }
+
+ i[0] = 2;
+ i[1] = idev->resource[0].start;
+ i[2] = idev->irq_resource[0].start;
+
+ printk(KERN_INFO "sym53c416: ISAPnP card found and configured at 0x%X, IRQ %d.\n",
+ i[1], i[2]);
+ sym53c416_setup(NULL, i);
+ }
+ sym53c416_probe();
+
+ /* Now we register and set up each host adapter found... */
+ for(count = 0, i = 0; i < host_index; i++)
+ {
+ if(!sym53c416_test(hosts[i].base))
+ printk(KERN_WARNING "No sym53c416 found at address 0x%03x\n", hosts[i].base);
+ else
+ {
+ if(hosts[i].irq == 0)
+ /* We don't have an irq yet, so we should probe for one */
+ if((hosts[i].irq = sym53c416_probeirq(hosts[i].base, hosts[i].scsi_id)) == 0)
+ printk(KERN_WARNING "IRQ autoprobing failed for sym53c416 at address 0x%03x\n", hosts[i].base);
+ if(hosts[i].irq && !check_region(hosts[i].base, IO_RANGE))
+ {
+ shpnt = scsi_register(tpnt, 0);
+ if(shpnt==NULL)
+ continue;
+ save_flags(flags);
+ cli();
+ /* FIXME: Request_irq with CLI is not safe */
+ /* Request for specified IRQ */
+ if(request_irq(hosts[i].irq, sym53c416_intr_handle, 0, ID, NULL))
+ {
+ restore_flags(flags);
+ printk(KERN_ERR "sym53c416: Unable to assign IRQ %d\n", hosts[i].irq);
+ scsi_unregister(shpnt);
+ }
+ else
+ {
+ /* Inform the kernel of our IO range */
+ request_region(hosts[i].base, IO_RANGE, ID);
+ shpnt->unique_id = hosts[i].base;
+ shpnt->io_port = hosts[i].base;
+ shpnt->n_io_port = IO_RANGE;
+ shpnt->irq = hosts[i].irq;
+ shpnt->this_id = hosts[i].scsi_id;
+ sym53c416_init(hosts[i].base, hosts[i].scsi_id);
+ count++;
+ restore_flags(flags);
+ }
+ }
+ }
+ }
+ return count;
+}
const char *sym53c416_info(struct Scsi_Host *SChost)
- {
- int i;
- int base = SChost->io_port;
- int irq = SChost->irq;
- int scsi_id = 0;
- int rev = inb(base + TC_HIGH);
-
- for(i = 0; i < host_index; i++)
- if(hosts[i].base == base)
- scsi_id = hosts[i].scsi_id;
- sprintf(info, "Symbios Logic 53c416 (rev. %d) at 0x%03x, irq %d, SCSI-ID %d, %s pio", rev, base, irq, scsi_id, (fastpio)? "fast" : "slow");
- return info;
- }
+{
+ int i;
+ int base = SChost->io_port;
+ int irq = SChost->irq;
+ int scsi_id = 0;
+ int rev = inb(base + TC_HIGH);
+
+ for(i = 0; i < host_index; i++)
+ if(hosts[i].base == base)
+ scsi_id = hosts[i].scsi_id;
+ sprintf(info, "Symbios Logic 53c416 (rev. %d) at 0x%03x, irq %d, SCSI-ID %d, %s pio", rev, base, irq, scsi_id, (fastpio)? "fast" : "slow");
+ return info;
+}
int sym53c416_queuecommand(Scsi_Cmnd *SCpnt, void (*done)(Scsi_Cmnd *))
- {
- int base;
- unsigned long flags = 0;
- int i;
-
- /* Store base register as we can have more than one controller in the system */
- base = SCpnt->host->io_port;
- current_command = SCpnt; /* set current command */
- current_command->scsi_done = done; /* set ptr to done function */
- current_command->SCp.phase = command_ph; /* currect phase is the command phase */
- current_command->SCp.Status = 0;
- current_command->SCp.Message = 0;
-
- save_flags(flags);
- cli();
- outb(SCpnt->target, 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++)
- outb(SCpnt->cmnd[i], base + SCSI_FIFO);
- /* Start selection sequence */
- outb(SEL_WITHOUT_ATN_SEQ, base + COMMAND_REG);
- /* Now an interrupt will be generated which we will catch in out interrupt routine */
- restore_flags(flags);
- return 0;
- }
+{
+ int base;
+ unsigned long flags = 0;
+ int i;
+
+ /* Store base register as we can have more than one controller in the system */
+ base = SCpnt->host->io_port;
+ current_command = SCpnt; /* set current command */
+ current_command->scsi_done = done; /* set ptr to done function */
+ current_command->SCp.phase = command_ph; /* currect phase is the command phase */
+ current_command->SCp.Status = 0;
+ current_command->SCp.Message = 0;
+
+ save_flags(flags);
+ cli();
+ outb(SCpnt->target, 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++)
+ outb(SCpnt->cmnd[i], base + SCSI_FIFO);
+ /* Start selection sequence */
+ outb(SEL_WITHOUT_ATN_SEQ, base + COMMAND_REG);
+ /* Now an interrupt will be generated which we will catch in out interrupt routine */
+ restore_flags(flags);
+ return 0;
+}
static void internal_done(Scsi_Cmnd *SCpnt)
- {
- SCpnt->SCp.Status++;
- }
-
-int sym53c416_command(Scsi_Cmnd *SCpnt)
- {
- sym53c416_queuecommand(SCpnt, internal_done);
- SCpnt->SCp.Status = 0;
- while(!SCpnt->SCp.Status)
- barrier();
- return SCpnt->result;
- }
-
-int sym53c416_abort(Scsi_Cmnd *SCpnt)
- {
- printk("sym53c416_abort\n");
-
- /* We don't know how to abort for the moment */
- return SCSI_ABORT_SNOOZE;
- }
-
-int sym53c416_reset(Scsi_Cmnd *SCpnt, unsigned int reset_flags)
- {
- int base;
- int scsi_id = -1;
- int i;
-
- printk("sym53c416_reset\n");
- base = SCpnt->host->io_port;
- /* search scsi_id */
- 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);
- return SCSI_RESET_PENDING;
- }
-
-int sym53c416_bios_param(Disk *disk, kdev_t dev, int *ip)
- {
- int size;
-
- size = disk->capacity;
- ip[0] = 64; /* heads */
- ip[1] = 32; /* sectors */
- if((ip[2] = size >> 11) > 1024) /* cylinders, test for big disk */
- {
- ip[0] = 255; /* heads */
- ip[1] = 63; /* sectors */
- ip[2] = size / (255 * 63); /* cylinders */
- }
- return 0;
- }
+{
+ SCpnt->SCp.Status++;
+}
+
+static int sym53c416_command(Scsi_Cmnd *SCpnt)
+{
+ sym53c416_queuecommand(SCpnt, internal_done);
+ SCpnt->SCp.Status = 0;
+ while(!SCpnt->SCp.Status)
+ barrier();
+ return SCpnt->result;
+}
+
+static int sym53c416_abort(Scsi_Cmnd *SCpnt)
+{
+ //printk("sym53c416_abort\n");
+ /* We don't know how to abort for the moment */
+ return SCSI_ABORT_SNOOZE;
+}
+
+static int sym53c416_reset(Scsi_Cmnd *SCpnt, unsigned int reset_flags)
+{
+ int base;
+ int scsi_id = -1;
+ int i;
+
+ //printk("sym53c416_reset\n");
+ base = SCpnt->host->io_port;
+ /* search scsi_id */
+ 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);
+ return SCSI_RESET_PENDING;
+}
+
+static int sym53c416_bios_param(Disk *disk, kdev_t dev, int *ip)
+{
+ int size;
+
+ size = disk->capacity;
+ ip[0] = 64; /* heads */
+ ip[1] = 32; /* sectors */
+ if((ip[2] = size >> 11) > 1024) /* cylinders, test for big disk */
+ {
+ ip[0] = 255; /* heads */
+ ip[1] = 63; /* sectors */
+ ip[2] = size / (255 * 63); /* cylinders */
+ }
+ return 0;
+}
/* Loadable module support */
#ifdef MODULE
FUNET's LINUX-ADM group, linux-adm@nic.funet.fi
TCL-scripts by Sam Shen (who was at: slshen@lbl.gov)