Skip to content

L
linux
Commit 8412c915 authored by Dave Jones's avatar Dave Jones Committed by Linus Torvalds
Browse files
Options

[PATCH] NCR5380 update. 

From 2.4
- Lindented
- Add Docbook comments
- Remove duplicate MODULE_LICENSE tag
parent d56fe0f6
Show whitespace changes
Inline Side-by-side
Showing with 635 additions and 695 deletions
drivers/scsi/g_NCR5380.c
View file @ 8412c915
......@@ -124,13 +124,13 @@
#include <linux/isapnp.h>
#define NCR_NOT_SET 0
static int ncr_irq=NCR_NOT_SET;
static int ncr_dma=NCR_NOT_SET;
static int ncr_addr=NCR_NOT_SET;
static int ncr_5380=NCR_NOT_SET;
static int ncr_53c400=NCR_NOT_SET;
static int ncr_53c400a=NCR_NOT_SET;
static int dtc_3181e=NCR_NOT_SET;
static int ncr_irq = NCR_NOT_SET;
static int ncr_dma = NCR_NOT_SET;
static int ncr_addr = NCR_NOT_SET;
static int ncr_5380 = NCR_NOT_SET;
static int ncr_53c400 = NCR_NOT_SET;
static int ncr_53c400a = NCR_NOT_SET;
static int dtc_3181e = NCR_NOT_SET;
static struct override {
NCR5380_implementation_fields;
......@@ -139,42 +139,44 @@ static struct override {
int board; /* Use NCR53c400, Ricoh, etc. extensions ? */
} overrides
#ifdef GENERIC_NCR5380_OVERRIDE
[] __initdata = GENERIC_NCR5380_OVERRIDE;
[] __initdata = GENERIC_NCR5380_OVERRIDE;
#else
[1] __initdata = {{0,},};
[1] __initdata = { { 0,},};
#endif
#define NO_OVERRIDES (sizeof(overrides) / sizeof(struct override))
/*
* Function : static internal_setup(int board, char *str, int *ints)
*
* Purpose : LILO command line initialization of the overrides array,
/**
* internal_setup - handle lilo command string override
* @board: BOARD_* identifier for the board
* @str: unused
* @ints: numeric parameters
*
* Inputs : board - either BOARD_NCR5380 for a normal NCR5380 board,
* or BOARD_NCR53C400 for a NCR53C400 board. str - unused, ints -
* array of integer parameters with ints[0] equal to the number of ints.
* Do LILO command line initialization of the overrides array. Display
* errors when needed
*
* Locks: none
*/
static void __init internal_setup(int board, char *str, int *ints){
static void __init internal_setup(int board, char *str, int *ints)
{
static int commandline_current = 0;
switch (board) {
case BOARD_NCR5380:
if (ints[0] != 2 && ints[0] != 3) {
printk("generic_NCR5380_setup : usage ncr5380=" STRVAL(NCR5380_map_name) ",irq,dma\n");
printk(KERN_ERR "generic_NCR5380_setup : usage ncr5380=" STRVAL(NCR5380_map_name) ",irq,dma\n");
return;
}
break;
case BOARD_NCR53C400:
if (ints[0] != 2) {
printk("generic_NCR53C400_setup : usage ncr53c400=" STRVAL(NCR5380_map_name) ",irq\n");
printk(KERN_ERR "generic_NCR53C400_setup : usage ncr53c400=" STRVAL(NCR5380_map_name) ",irq\n");
return;
}
break;
case BOARD_NCR53C400A:
if (ints[0] != 2) {
printk("generic_NCR53C400A_setup : usage ncr53c400a=" STRVAL(NCR5380_map_name) ",irq\n");
printk(KERN_ERR "generic_NCR53C400A_setup : usage ncr53c400a=" STRVAL(NCR5380_map_name) ",irq\n");
return;
}
break;
......@@ -187,7 +189,7 @@ static void __init internal_setup(int board, char *str, int *ints){
}
if (commandline_current < NO_OVERRIDES) {
overrides[commandline_current].NCR5380_map_name = (NCR5380_map_type)ints[1];
overrides[commandline_current].NCR5380_map_name = (NCR5380_map_type) ints[1];
overrides[commandline_current].irq = ints[2];
if (ints[0] == 3)
overrides[commandline_current].dma = ints[3];
......@@ -198,100 +200,124 @@ static void __init internal_setup(int board, char *str, int *ints){
}
}
/*
* Function : generic_NCR5380_setup (char *str, int *ints)
/**
* do_NCR53C80_setup - set up entry point
* @str: unused
*
* Purpose : LILO command line initialization of the overrides array,
*
* Inputs : str - unused, ints - array of integer parameters with ints[0]
* equal to the number of ints.
* Setup function invoked at boot to parse the ncr5380= command
* line.
*/
void __init generic_NCR5380_setup (char *str, int *ints){
internal_setup (BOARD_NCR5380, str, ints);
static int __init do_NCR5380_setup(char *str)
{
int ints[10];
get_options(str, sizeof(ints) / sizeof(int), ints);
internal_setup(BOARD_NCR5380, str, ints);
return 1;
}
/*
* Function : generic_NCR53C400_setup (char *str, int *ints)
*
* Purpose : LILO command line initialization of the overrides array,
/**
* do_NCR53C400_setup - set up entry point
* @str: unused
* @ints: integer parameters from kernel setup code
*
* Inputs : str - unused, ints - array of integer parameters with ints[0]
* equal to the number of ints.
* Setup function invoked at boot to parse the ncr53c400= command
* line.
*/
void __init generic_NCR53C400_setup (char *str, int *ints){
internal_setup (BOARD_NCR53C400, str, ints);
static int __init do_NCR53C400_setup(char *str)
{
int ints[10];
get_options(str, sizeof(ints) / sizeof(int), ints);
internal_setup(BOARD_NCR53C400, str, ints);
return 1;
}
/*
* Function : generic_NCR53C400A_setup (char *str, int *ints)
*
* Purpose : LILO command line initialization of the overrides array,
/**
* do_NCR53C400A_setup - set up entry point
* @str: unused
* @ints: integer parameters from kernel setup code
*
* Inputs : str - unused, ints - array of integer parameters with ints[0]
* equal to the number of ints.
* Setup function invoked at boot to parse the ncr53c400a= command
* line.
*/
void generic_NCR53C400A_setup (char *str, int *ints) {
internal_setup (BOARD_NCR53C400A, str, ints);
static int __init do_NCR53C400A_setup(char *str)
{
int ints[10];
get_options(str, sizeof(ints) / sizeof(int), ints);
internal_setup(BOARD_NCR53C400A, str, ints);
return 1;
}
/*
* Function : generic_DTC3181E_setup (char *str, int *ints)
/**
* do_DTC3181E_setup - set up entry point
* @str: unused
* @ints: integer parameters from kernel setup code
*
* Purpose : LILO command line initialization of the overrides array,
*
* Inputs : str - unused, ints - array of integer parameters with ints[0]
* equal to the number of ints.
* Setup function invoked at boot to parse the dtc3181e= command
* line.
*/
void generic_DTC3181E_setup (char *str, int *ints) {
internal_setup (BOARD_DTC3181E, str, ints);
static int __init do_DTC3181E_setup(char *str)
{
int ints[10];
get_options(str, sizeof(ints) / sizeof(int), ints);
internal_setup(BOARD_DTC3181E, str, ints);
return 1;
}
/*
* Function : int generic_NCR5380_detect(Scsi_Host_Template * tpnt)
/**
* generic_NCR5380_detect - look for NCR5380 controllers
* @tpnt: the scsi template
*
* Purpose : initializes generic NCR5380 driver based on the
* command line / compile time port and irq definitions.
* Scan for the present of NCR5380, NCR53C400, NCR53C400A, DTC3181E
* and DTC436(ISAPnP) controllers. If overrides have been set we use
* them.
*
* Inputs : tpnt - template for this SCSI adapter.
*
* Returns : 1 if a host adapter was found, 0 if not.
* The caller supplied NCR5380_init function is invoked from here, before
* the interrupt line is taken.
*
* Locks: none
*/
int __init generic_NCR5380_detect(Scsi_Host_Template * tpnt){
int __init generic_NCR5380_detect(Scsi_Host_Template * tpnt)
{
static int current_override = 0;
int count, i;
u_int *ports;
u_int ncr_53c400a_ports[] = {0x280, 0x290, 0x300, 0x310, 0x330,
0x340, 0x348, 0x350, 0};
u_int dtc_3181e_ports[] = {0x220, 0x240, 0x280, 0x2a0, 0x2c0,
0x300, 0x320, 0x340, 0};
unsigned int *ports;
static unsigned int __initdata ncr_53c400a_ports[] = {
0x280, 0x290, 0x300, 0x310, 0x330, 0x340, 0x348, 0x350, 0
};
static unsigned int __initdata dtc_3181e_ports[] = {
0x220, 0x240, 0x280, 0x2a0, 0x2c0, 0x300, 0x320, 0x340, 0
};
int flags = 0;
struct Scsi_Host *instance;
if (ncr_irq != NCR_NOT_SET)
overrides[0].irq=ncr_irq;
overrides[0].irq = ncr_irq;
if (ncr_dma != NCR_NOT_SET)
overrides[0].dma=ncr_dma;
overrides[0].dma = ncr_dma;
if (ncr_addr != NCR_NOT_SET)
overrides[0].NCR5380_map_name=(NCR5380_map_type)ncr_addr;
overrides[0].NCR5380_map_name = (NCR5380_map_type) ncr_addr;
if (ncr_5380 != NCR_NOT_SET)
overrides[0].board=BOARD_NCR5380;
overrides[0].board = BOARD_NCR5380;
else if (ncr_53c400 != NCR_NOT_SET)
overrides[0].board=BOARD_NCR53C400;
overrides[0].board = BOARD_NCR53C400;
else if (ncr_53c400a != NCR_NOT_SET)
overrides[0].board=BOARD_NCR53C400A;
overrides[0].board = BOARD_NCR53C400A;
else if (dtc_3181e != NCR_NOT_SET)
overrides[0].board=BOARD_DTC3181E;
overrides[0].board = BOARD_DTC3181E;
if (!current_override && isapnp_present()) {
struct pci_dev *dev = NULL;
count = 0;
while ((dev = isapnp_find_dev(NULL, ISAPNP_VENDOR('D','T','C'), ISAPNP_FUNCTION(0x436e), dev))) {
while ((dev = isapnp_find_dev(NULL, ISAPNP_VENDOR('D', 'T', 'C'), ISAPNP_FUNCTION(0x436e), dev))) {
if (count >= NO_OVERRIDES)
break;
if (!dev->active && dev->prepare(dev) < 0) {
......@@ -305,15 +331,15 @@ int __init generic_NCR5380_detect(Scsi_Host_Template * tpnt){
continue;
}
if (dev->irq_resource[0].flags & IORESOURCE_IRQ)
overrides[count].irq=dev->irq_resource[0].start;
overrides[count].irq = dev->irq_resource[0].start;
else
overrides[count].irq=IRQ_NONE;
overrides[count].irq = IRQ_NONE;
if (dev->dma_resource[0].flags & IORESOURCE_DMA)
overrides[count].dma=dev->dma_resource[0].start;
overrides[count].dma = dev->dma_resource[0].start;
else
overrides[count].dma=DMA_NONE;
overrides[count].NCR5380_map_name=(NCR5380_map_type)dev->resource[0].start;
overrides[count].board=BOARD_DTC3181E;
overrides[count].dma = DMA_NONE;
overrides[count].NCR5380_map_name = (NCR5380_map_type) dev->resource[0].start;
overrides[count].board = BOARD_DTC3181E;
count++;
}
}
......@@ -344,7 +370,7 @@ int __init generic_NCR5380_detect(Scsi_Host_Template * tpnt){
#ifdef CONFIG_SCSI_G_NCR5380_PORT
if (ports) {
/* wakeup sequence for the NCR53C400A and DTC3181E*/
/* wakeup sequence for the NCR53C400A and DTC3181E */
/* Disable the adapter and look for a free io port */
outb(0x59, 0x779);
......@@ -355,12 +381,11 @@ int __init generic_NCR5380_detect(Scsi_Host_Template * tpnt){
outb(0x00, 0x379);
if (overrides[current_override].NCR5380_map_name != PORT_AUTO)
for(i=0; ports[i]; i++) {
for (i = 0; ports[i]; i++) {
if (overrides[current_override].NCR5380_map_name == ports[i])
break;
}
else
for(i=0; ports[i]; i++) {
} else
for (i = 0; ports[i]; i++) {
if ((!check_region(ports[i], 16)) && (inb(ports[i]) == 0xff))
break;
}
......@@ -375,29 +400,23 @@ int __init generic_NCR5380_detect(Scsi_Host_Template * tpnt){
if (inb(ports[i] + 9) != 0x80)
continue;
else
overrides[current_override].NCR5380_map_name=ports[i];
overrides[current_override].NCR5380_map_name = ports[i];
} else
continue;
}
request_region(overrides[current_override].NCR5380_map_name,
NCR5380_region_size, "ncr5380");
request_region(overrides[current_override].NCR5380_map_name, NCR5380_region_size, "ncr5380");
#else
if(check_mem_region(overrides[current_override].NCR5380_map_name,
NCR5380_region_size))
if (check_mem_region(overrides[current_override].NCR5380_map_name, NCR5380_region_size))
continue;
request_mem_region(overrides[current_override].NCR5380_map_name,
NCR5380_region_size, "ncr5380");
request_mem_region(overrides[current_override].NCR5380_map_name, NCR5380_region_size, "ncr5380");
#endif
instance = scsi_register (tpnt, sizeof(struct NCR5380_hostdata));
if(instance == NULL)
{
instance = scsi_register(tpnt, sizeof(struct NCR5380_hostdata));
if (instance == NULL) {
#ifdef CONFIG_SCSI_G_NCR5380_PORT
release_region(overrides[current_override].NCR5380_map_name,
NCR5380_region_size);
release_region(overrides[current_override].NCR5380_map_name, NCR5380_region_size);
#else
release_mem_region(overrides[current_override].NCR5380_map_name,
NCR5380_region_size);
release_mem_region(overrides[current_override].NCR5380_map_name, NCR5380_region_size);
#endif
continue;
}
......@@ -413,23 +432,21 @@ int __init generic_NCR5380_detect(Scsi_Host_Template * tpnt){
if (instance->irq != IRQ_NONE)
if (request_irq(instance->irq, do_generic_NCR5380_intr, SA_INTERRUPT, "NCR5380", NULL)) {
printk("scsi%d : IRQ%d not free, interrupts disabled\n",
instance->host_no, instance->irq);
printk(KERN_WARNING "scsi%d : IRQ%d not free, interrupts disabled\n", instance->host_no, instance->irq);
instance->irq = IRQ_NONE;
}
if (instance->irq == IRQ_NONE) {
printk("scsi%d : interrupts not enabled. for better interactive performance,\n", instance->host_no);
printk("scsi%d : please jumper the board for a free IRQ.\n", instance->host_no);
printk(KERN_INFO "scsi%d : interrupts not enabled. for better interactive performance,\n", instance->host_no);
printk(KERN_INFO "scsi%d : please jumper the board for a free IRQ.\n", instance->host_no);
}
printk("scsi%d : at " STRVAL(NCR5380_map_name) " 0x%x", instance->host_no, (unsigned int)instance->NCR5380_instance_name);
printk(KERN_INFO "scsi%d : at " STRVAL(NCR5380_map_name) " 0x%x", instance->host_no, (unsigned int) instance->NCR5380_instance_name);
if (instance->irq == IRQ_NONE)
printk (" interrupts disabled");
printk(" interrupts disabled");
else
printk (" irq %d", instance->irq);
printk(" options CAN_QUEUE=%d CMD_PER_LUN=%d release=%d",
CAN_QUEUE, CMD_PER_LUN, GENERIC_NCR5380_PUBLIC_RELEASE);
printk(" irq %d", instance->irq);
printk(" options CAN_QUEUE=%d CMD_PER_LUN=%d release=%d", CAN_QUEUE, CMD_PER_LUN, GENERIC_NCR5380_PUBLIC_RELEASE);
NCR5380_print_options(instance);
printk("\n");
......@@ -439,15 +456,31 @@ int __init generic_NCR5380_detect(Scsi_Host_Template * tpnt){
return count;
}
const char * generic_NCR5380_info (struct Scsi_Host* host) {
static const char string[]="Generic NCR5380/53C400 Driver";
/**
* generic_NCR5380_info - reporting string
* @host: NCR5380 to report on
*
* Report driver information for the NCR5380
*/
const char *generic_NCR5380_info(struct Scsi_Host *host)
{
static const char string[] = "Generic NCR5380/53C400 Driver";
return string;
}
int generic_NCR5380_release_resources(struct Scsi_Host * instance)
/**
* generic_NCR5380_release_resources - free resources
* @instance: host adapter to clean up
*
* Free the generic interface resources from this adapter.
*
* Locks: none
*/
int generic_NCR5380_release_resources(struct Scsi_Host *instance)
{
NCR5380_local_declare();
NCR5380_setup(instance);
#ifdef CONFIG_SCSI_G_NCR5380_PORT
......@@ -463,24 +496,21 @@ int generic_NCR5380_release_resources(struct Scsi_Host * instance)
}
#ifdef BIOSPARAM
/*
* Function : int generic_NCR5380_biosparam(Disk * disk, kdev_t dev, int *ip)
*
* Purpose : Generates a BIOS / DOS compatible H-C-S mapping for
* the specified device / size.
/**
* generic_NCR5380_biosparam
* @disk: disk to compute geometry for
* @dev: device identifier for this disk
* @ip: sizes to fill in
*
* Inputs : size = size of device in sectors (512 bytes), dev = block device
* major / minor, ip[] = {heads, sectors, cylinders}
* Generates a BIOS / DOS compatible H-C-S mapping for the specified
* device / size.
*
* Returns : always 0 (success), initializes ip
* XXX Most SCSI boards use this mapping, I could be incorrect. Someone
* using hard disks on a trantor should verify that this mapping
* corresponds to that used by the BIOS / ASPI driver by running the linux
* fdisk program and matching the H_C_S coordinates to what DOS uses.
*
*/
/*
* XXX Most SCSI boards use this mapping, I could be incorrect. Some one
* using hard disks on a trantor should verify that this mapping corresponds
* to that used by the BIOS / ASPI driver by running the linux fdisk program
* and matching the H_C_S coordinates to what DOS uses.
* Locks: none
*/
int generic_NCR5380_biosparam(Disk * disk, kdev_t dev, int *ip)
......@@ -494,210 +524,156 @@ int generic_NCR5380_biosparam(Disk * disk, kdev_t dev, int *ip)
#endif
#if NCR53C400_PSEUDO_DMA
static inline int NCR5380_pread (struct Scsi_Host *instance, unsigned char *dst, int len)
/**
* NCR5380_pread - pseudo DMA read
* @instance: adapter to read from
* @dst: buffer to read into
* @len: buffer length
*
* Perform a psuedo DMA mode read from an NCR53C400 or equivalent
* controller
*/
static inline int NCR5380_pread(struct Scsi_Host *instance, unsigned char *dst, int len)
{
int blocks = len / 128;
int start = 0;
int bl;
#ifdef CONFIG_SCSI_G_NCR5380_PORT
int i;
#endif
NCR5380_local_declare();
NCR5380_setup(instance);
#if (NDEBUG & NDEBUG_C400_PREAD)
printk("53C400r: About to read %d blocks for %d bytes\n", blocks, len);
#endif
NCR5380_write(C400_CONTROL_STATUS_REG, CSR_BASE | CSR_TRANS_DIR);
NCR5380_write(C400_BLOCK_COUNTER_REG, blocks);
while (1) {
#if (NDEBUG & NDEBUG_C400_PREAD)
printk("53C400r: %d blocks left\n", blocks);
#endif
if ((bl=NCR5380_read(C400_BLOCK_COUNTER_REG)) == 0) {
#if (NDEBUG & NDEBUG_C400_PREAD)
if (blocks)
printk("53C400r: blocks still == %d\n", blocks);
else
printk("53C400r: Exiting loop\n");
#endif
if ((bl = NCR5380_read(C400_BLOCK_COUNTER_REG)) == 0) {
break;
}
#if 1
if (NCR5380_read(C400_CONTROL_STATUS_REG) & CSR_GATED_53C80_IRQ) {
printk("53C400r: Got 53C80_IRQ start=%d, blocks=%d\n", start, blocks);
printk(KERN_ERR "53C400r: Got 53C80_IRQ start=%d, blocks=%d\n", start, blocks);
return -1;
}
#endif
#if (NDEBUG & NDEBUG_C400_PREAD)
printk("53C400r: Waiting for buffer, bl=%d\n", bl);
#endif
while (NCR5380_read(C400_CONTROL_STATUS_REG) & CSR_HOST_BUF_NOT_RDY)
;
#if (NDEBUG & NDEBUG_C400_PREAD)
printk("53C400r: Transferring 128 bytes\n");
#endif
while (NCR5380_read(C400_CONTROL_STATUS_REG) & CSR_HOST_BUF_NOT_RDY);
#ifdef CONFIG_SCSI_G_NCR5380_PORT
for (i=0; i<128; i++)
dst[start+i] = NCR5380_read(C400_HOST_BUFFER);
{
int i;
for (i = 0; i < 128; i++)
dst[start + i] = NCR5380_read(C400_HOST_BUFFER);
}
#else
/* implies CONFIG_SCSI_G_NCR5380_MEM */
isa_memcpy_fromio(dst+start,NCR53C400_host_buffer+NCR5380_map_name,128);
isa_memcpy_fromio(dst + start, NCR53C400_host_buffer + NCR5380_map_name, 128);
#endif
start+=128;
start += 128;
blocks--;
}
if (blocks) {
#if (NDEBUG & NDEBUG_C400_PREAD)
printk("53C400r: EXTRA: Waiting for buffer\n");
#endif
while (NCR5380_read(C400_CONTROL_STATUS_REG) & CSR_HOST_BUF_NOT_RDY)
;
{
// FIXME - no timeout
}
#if (NDEBUG & NDEBUG_C400_PREAD)
printk("53C400r: Transferring EXTRA 128 bytes\n");
#endif
#ifdef CONFIG_SCSI_G_NCR5380_PORT
for (i=0; i<128; i++)
dst[start+i] = NCR5380_read(C400_HOST_BUFFER);
{
int i;
for (i = 0; i < 128; i++)
dst[start + i] = NCR5380_read(C400_HOST_BUFFER);
}
#else
/* implies CONFIG_SCSI_G_NCR5380_MEM */
isa_memcpy_fromio(dst+start,NCR53C400_host_buffer+NCR5380_map_name,128);
isa_memcpy_fromio(dst + start, NCR53C400_host_buffer + NCR5380_map_name, 128);
#endif
start+=128;
start += 128;
blocks--;
}
#if (NDEBUG & NDEBUG_C400_PREAD)
else
printk("53C400r: No EXTRA required\n");
#endif
#if (NDEBUG & NDEBUG_C400_PREAD)
printk("53C400r: Final values: blocks=%d start=%d\n", blocks, start);
#endif
if (!(NCR5380_read(C400_CONTROL_STATUS_REG) & CSR_GATED_53C80_IRQ))
printk("53C400r: no 53C80 gated irq after transfer");
#if (NDEBUG & NDEBUG_C400_PREAD)
else
printk("53C400r: Got 53C80 interrupt and tried to clear it\n");
#endif
/* DON'T DO THIS - THEY NEVER ARRIVE!
#if 0
/*
* DON'T DO THIS - THEY NEVER ARRIVE!
*/
printk("53C400r: Waiting for 53C80 registers\n");
while (NCR5380_read(C400_CONTROL_STATUS_REG) & CSR_53C80_REG)
;
*/
if (!(NCR5380_read(BUS_AND_STATUS_REG) & BASR_END_DMA_TRANSFER))
printk("53C400r: no end dma signal\n");
#if (NDEBUG & NDEBUG_C400_PREAD)
else
printk("53C400r: end dma as expected\n");
#endif
if (!(NCR5380_read(BUS_AND_STATUS_REG) & BASR_END_DMA_TRANSFER))
printk(KERN_ERR "53C400r: no end dma signal\n");
NCR5380_write(MODE_REG, MR_BASE);
NCR5380_read(RESET_PARITY_INTERRUPT_REG);
return 0;
}
static inline int NCR5380_pwrite (struct Scsi_Host *instance, unsigned char *src, int len)
/**
* NCR5380_write - pseudo DMA write
* @instance: adapter to read from
* @dst: buffer to read into
* @len: buffer length
*
* Perform a psuedo DMA mode read from an NCR53C400 or equivalent
* controller
*/
static inline int NCR5380_pwrite(struct Scsi_Host *instance, unsigned char *src, int len)
{
int blocks = len / 128;
int start = 0;
int i;
int bl;
NCR5380_local_declare();
int i;
NCR5380_local_declare();
NCR5380_setup(instance);
#if (NDEBUG & NDEBUG_C400_PWRITE)
printk("53C400w: About to write %d blocks for %d bytes\n", blocks, len);
#endif
NCR5380_write(C400_CONTROL_STATUS_REG, CSR_BASE);
NCR5380_write(C400_BLOCK_COUNTER_REG, blocks);
while (1) {
if (NCR5380_read(C400_CONTROL_STATUS_REG) & CSR_GATED_53C80_IRQ) {
printk("53C400w: Got 53C80_IRQ start=%d, blocks=%d\n", start, blocks);
printk(KERN_ERR "53C400w: Got 53C80_IRQ start=%d, blocks=%d\n", start, blocks);
return -1;
}
if ((bl=NCR5380_read(C400_BLOCK_COUNTER_REG)) == 0) {
#if (NDEBUG & NDEBUG_C400_PWRITE)
if (blocks)
printk("53C400w: exiting loop, blocks still == %d\n", blocks);
else
printk("53C400w: exiting loop\n");
#endif
if ((bl = NCR5380_read(C400_BLOCK_COUNTER_REG)) == 0) {
break;
}
#if (NDEBUG & NDEBUG_C400_PWRITE)
printk("53C400w: %d blocks left\n", blocks);
printk("53C400w: waiting for buffer, bl=%d\n", bl);
#endif
while (NCR5380_read(C400_CONTROL_STATUS_REG) & CSR_HOST_BUF_NOT_RDY)
;
#if (NDEBUG & NDEBUG_C400_PWRITE)
printk("53C400w: transferring 128 bytes\n");
#endif
; // FIXME - timeout
#ifdef CONFIG_SCSI_G_NCR5380_PORT
for (i=0; i<128; i++)
NCR5380_write(C400_HOST_BUFFER, src[start+i]);
{
for (i = 0; i < 128; i++)
NCR5380_write(C400_HOST_BUFFER, src[start + i]);
}
#else
/* implies CONFIG_SCSI_G_NCR5380_MEM */
isa_memcpy_toio(NCR53C400_host_buffer+NCR5380_map_name,src+start,128);
isa_memcpy_toio(NCR53C400_host_buffer + NCR5380_map_name, src + start, 128);
#endif
start+=128;
start += 128;
blocks--;
}
if (blocks) {
#if (NDEBUG & NDEBUG_C400_PWRITE)
printk("53C400w: EXTRA waiting for buffer\n");
#endif
while (NCR5380_read(C400_CONTROL_STATUS_REG) & CSR_HOST_BUF_NOT_RDY)
;
; // FIXME - no timeout
#if (NDEBUG & NDEBUG_C400_PWRITE)
printk("53C400w: transferring EXTRA 128 bytes\n");
#endif
#ifdef CONFIG_SCSI_G_NCR5380_PORT
for (i=0; i<128; i++)
NCR5380_write(C400_HOST_BUFFER, src[start+i]);
{
for (i = 0; i < 128; i++)
NCR5380_write(C400_HOST_BUFFER, src[start + i]);
}
#else
/* implies CONFIG_SCSI_G_NCR5380_MEM */
isa_memcpy_toio(NCR53C400_host_buffer+NCR5380_map_name,src+start,128);
isa_memcpy_toio(NCR53C400_host_buffer + NCR5380_map_name, src + start, 128);
#endif
start+=128;
start += 128;
blocks--;
}
#if (NDEBUG & NDEBUG_C400_PWRITE)
else
printk("53C400w: No EXTRA required\n");
#endif
#if (NDEBUG & NDEBUG_C400_PWRITE)
printk("53C400w: Final values: blocks=%d start=%d\n", blocks, start);
#endif
#if 0
printk("53C400w: waiting for registers to be available\n");
THEY NEVER DO!
while (NCR5380_read(C400_CONTROL_STATUS_REG) & CSR_53C80_REG)
;
THEY NEVER DO ! while (NCR5380_read(C400_CONTROL_STATUS_REG) & CSR_53C80_REG);
printk("53C400w: Got em\n");
#endif
......@@ -706,78 +682,91 @@ static inline int NCR5380_pwrite (struct Scsi_Host *instance, unsigned char *src
* fast. Waiting for it seems to work fine! KLL
*/
while (!(i = NCR5380_read(C400_CONTROL_STATUS_REG) & CSR_GATED_53C80_IRQ))
;
; // FIXME - no timeout
/*
* I know. i is certainly != 0 here but the loop is new. See previous
* comment.
*/
if (i) {
#if (NDEBUG & NDEBUG_C400_PWRITE)
printk("53C400w: got 53C80 gated irq (last block)\n");
#endif
if (!((i=NCR5380_read(BUS_AND_STATUS_REG)) & BASR_END_DMA_TRANSFER))
printk("53C400w: No END OF DMA bit - WHOOPS! BASR=%0x\n",i);
#if (NDEBUG & NDEBUG_C400_PWRITE)
else
printk("53C400w: Got END OF DMA\n");
#endif
}
else
printk("53C400w: no 53C80 gated irq after transfer (last block)\n");
if (!((i = NCR5380_read(BUS_AND_STATUS_REG)) & BASR_END_DMA_TRANSFER))
printk(KERN_ERR "53C400w: No END OF DMA bit - WHOOPS! BASR=%0x\n", i);
} else
printk(KERN_ERR "53C400w: no 53C80 gated irq after transfer (last block)\n");
#if 0
if (!(NCR5380_read(BUS_AND_STATUS_REG) & BASR_END_DMA_TRANSFER)) {
printk("53C400w: no end dma signal\n");
printk(KERN_ERR "53C400w: no end dma signal\n");
}
#endif
#if (NDEBUG & NDEBUG_C400_PWRITE)
printk("53C400w: waiting for last byte...\n");
#endif
while (!(NCR5380_read(TARGET_COMMAND_REG) & TCR_LAST_BYTE_SENT))
;
#if (NDEBUG & NDEBUG_C400_PWRITE)
printk("53C400w: got last byte.\n");
printk("53C400w: pwrite exiting with status 0, whoopee!\n");
#endif
; // TIMEOUT
return 0;
}
#endif /* PSEUDO_DMA */
/*
* Include the NCR5380 core code that we build our driver around
*/
#include "NCR5380.c"
#define PRINTP(x) len += sprintf(buffer+len, x)
#define ANDP ,
static int sprint_opcode(char* buffer, int len, int opcode) {
static int sprint_opcode(char *buffer, int len, int opcode)
{
int start = len;
PRINTP("0x%02x " ANDP opcode);
return len-start;
return len - start;
}
static int sprint_command (char* buffer, int len, unsigned char *command) {
int i,s,start=len;
static int sprint_command(char *buffer, int len, unsigned char *command)
{
int i, s, start = len;
len += sprint_opcode(buffer, len, command[0]);
for ( i = 1, s = COMMAND_SIZE(command[0]); i < s; ++i)
for (i = 1, s = COMMAND_SIZE(command[0]); i < s; ++i)
PRINTP("%02x " ANDP command[i]);
PRINTP("\n");
return len-start;
return len - start;
}
static int sprint_Scsi_Cmnd (char* buffer, int len, Scsi_Cmnd *cmd) {
/**
* sprintf_Scsi_Cmnd - print a scsi command
* @buffer: buffr to print into
* @len: buffer length
* @cmd: SCSI command block
*
* Print out the target and command data in hex
*/
static int sprint_Scsi_Cmnd(char *buffer, int len, Scsi_Cmnd * cmd)
{
int start = len;
PRINTP("host number %d destination target %d, lun %d\n" ANDP
cmd->host->host_no ANDP
cmd->target ANDP
cmd->lun);
PRINTP("host number %d destination target %d, lun %d\n" ANDP cmd->host->host_no ANDP cmd->target ANDP cmd->lun);
PRINTP(" command = ");
len += sprint_command (buffer, len, cmd->cmnd);
return len-start;
len += sprint_command(buffer, len, cmd->cmnd);
return len - start;
}
int generic_NCR5380_proc_info(char* buffer, char** start, off_t offset, int length, int hostno, int inout)
/**
* generic_NCR5380_proc_info - /proc for NCR5380 driver
* @buffer: buffer to print into
* @start: start position
* @offset: offset into buffer
* @len: length
* @hostno: instance to affect
* @inout: read/write
*
* Provide the procfs information for the 5380 controller. We fill
* this with useful debugging information including the commands
* being executed, disconnected command queue and the statistical
* data
*
* Locks: global cli/lock for queue walk
*/
int generic_NCR5380_proc_info(char *buffer, char **start, off_t offset, int length, int hostno, int inout)
{
int len = 0;
NCR5380_local_declare();
......@@ -794,18 +783,18 @@ int generic_NCR5380_proc_info(char* buffer, char** start, off_t offset, int leng
save_flags(flags);
cli();
for (scsi_ptr = first_instance; scsi_ptr; scsi_ptr=scsi_ptr->next)
for (scsi_ptr = first_instance; scsi_ptr; scsi_ptr = scsi_ptr->next)
if (scsi_ptr->host_no == hostno)
break;
NCR5380_setup(scsi_ptr);
hostdata = (struct NCR5380_hostdata *)scsi_ptr->hostdata;
hostdata = (struct NCR5380_hostdata *) scsi_ptr->hostdata;
PRINTP("SCSI host number %d : %s\n" ANDP scsi_ptr->host_no ANDP scsi_ptr->hostt->name);
PRINTP("Generic NCR5380 driver version %d\n" ANDP GENERIC_NCR5380_PUBLIC_RELEASE);
PRINTP("NCR5380 core version %d\n" ANDP NCR5380_PUBLIC_RELEASE);
#ifdef NCR53C400
PRINTP("NCR53C400 extension version %d\n" ANDP NCR53C400_PUBLIC_RELEASE);
PRINTP("NCR53C400 card%s detected\n" ANDP (((struct NCR5380_hostdata *)scsi_ptr->hostdata)->flags & FLAG_NCR53C400)?"":" not");
PRINTP("NCR53C400 card%s detected\n" ANDP(((struct NCR5380_hostdata *) scsi_ptr->hostdata)->flags & FLAG_NCR53C400) ? "" : " not");
# if NCR53C400_PSEUDO_DMA
PRINTP("NCR53C400 pseudo DMA used\n");
# endif
......@@ -827,31 +816,31 @@ int generic_NCR5380_proc_info(char* buffer, char** start, off_t offset, int leng
PRINTP(" %d pending writes" ANDP hostdata->pendingw);
if (hostdata->pendingr || hostdata->pendingw)
PRINTP("\n");
for (dev = scsi_ptr->host_queue; dev; dev=dev->next) {
for (dev = scsi_ptr->host_queue; dev; dev = dev->next) {
unsigned long br = hostdata->bytes_read[dev->id];
unsigned long bw = hostdata->bytes_write[dev->id];
long tr = hostdata->time_read[dev->id] / HZ;
long tw = hostdata->time_write[dev->id] / HZ;
PRINTP(" T:%d %s " ANDP dev->id ANDP (dev->type < MAX_SCSI_DEVICE_CODE) ? scsi_device_types[(int)dev->type] : "Unknown");
for (i=0; i<8; i++)
PRINTP(" T:%d %s " ANDP dev->id ANDP(dev->type < MAX_SCSI_DEVICE_CODE) ? scsi_device_types[(int) dev->type] : "Unknown");
for (i = 0; i < 8; i++)
if (dev->vendor[i] >= 0x20)
*(buffer+(len++)) = dev->vendor[i];
*(buffer+(len++)) = ' ';
for (i=0; i<16; i++)
*(buffer + (len++)) = dev->vendor[i];
*(buffer + (len++)) = ' ';
for (i = 0; i < 16; i++)
if (dev->model[i] >= 0x20)
*(buffer+(len++)) = dev->model[i];
*(buffer+(len++)) = ' ';
for (i=0; i<4; i++)
*(buffer + (len++)) = dev->model[i];
*(buffer + (len++)) = ' ';
for (i = 0; i < 4; i++)
if (dev->rev[i] >= 0x20)
*(buffer+(len++)) = dev->rev[i];
*(buffer+(len++)) = ' ';
*(buffer + (len++)) = dev->rev[i];
*(buffer + (len++)) = ' ';
PRINTP("\n%10ld kb read in %5ld secs" ANDP br/1024 ANDP tr);
PRINTP("\n%10ld kb read in %5ld secs" ANDP br / 1024 ANDP tr);
if (tr)
PRINTP(" @ %5ld bps" ANDP br / tr);
PRINTP("\n%10ld kb written in %5ld secs" ANDP bw/1024 ANDP tw);
PRINTP("\n%10ld kb written in %5ld secs" ANDP bw / 1024 ANDP tw);
if (tw)
PRINTP(" @ %5ld bps" ANDP bw / tw);
PRINTP("\n");
......@@ -862,29 +851,25 @@ int generic_NCR5380_proc_info(char* buffer, char** start, off_t offset, int leng
if (!(status & SR_REQ))
PRINTP("REQ not asserted, phase unknown.\n");
else {
for (i = 0; (phases[i].value != PHASE_UNKNOWN) &&
(phases[i].value != (status & PHASE_MASK)); ++i)
;
for (i = 0; (phases[i].value != PHASE_UNKNOWN) && (phases[i].value != (status & PHASE_MASK)); ++i);
PRINTP("Phase %s\n" ANDP phases[i].name);
}
if (!hostdata->connected) {
PRINTP("No currently connected command\n");
} else {
len += sprint_Scsi_Cmnd (buffer, len, (Scsi_Cmnd *) hostdata->connected);
len += sprint_Scsi_Cmnd(buffer, len, (Scsi_Cmnd *) hostdata->connected);
}
PRINTP("issue_queue\n");
for (ptr = (Scsi_Cmnd *) hostdata->issue_queue; ptr;
ptr = (Scsi_Cmnd *) ptr->host_scribble)
len += sprint_Scsi_Cmnd (buffer, len, ptr);
for (ptr = (Scsi_Cmnd *) hostdata->issue_queue; ptr; ptr = (Scsi_Cmnd *) ptr->host_scribble)
len += sprint_Scsi_Cmnd(buffer, len, ptr);
PRINTP("disconnected_queue\n");
for (ptr = (Scsi_Cmnd *) hostdata->disconnected_queue; ptr;
ptr = (Scsi_Cmnd *) ptr->host_scribble)
len += sprint_Scsi_Cmnd (buffer, len, ptr);
for (ptr = (Scsi_Cmnd *) hostdata->disconnected_queue; ptr; ptr = (Scsi_Cmnd *) ptr->host_scribble)
len += sprint_Scsi_Cmnd(buffer, len, ptr);
*start = buffer + offset;
len -= offset;
......@@ -897,14 +882,14 @@ int generic_NCR5380_proc_info(char* buffer, char** start, off_t offset, int leng
#undef PRINTP
#undef ANDP
/* Eventually this will go into an include file, but this will be later */
/*
* Eventually this will go into an include file, but this will be later
*/
static Scsi_Host_Template driver_template = GENERIC_NCR5380;
#include <linux/module.h>
#include "scsi_module.c"
#ifdef MODULE
MODULE_PARM(ncr_irq, "i");
MODULE_PARM(ncr_dma, "i");
MODULE_PARM(ncr_addr, "i");
......@@ -913,65 +898,20 @@ MODULE_PARM(ncr_53c400, "i");
MODULE_PARM(ncr_53c400a, "i");
MODULE_PARM(dtc_3181e, "i");
MODULE_LICENSE("GPL");
#else
static int __init do_NCR5380_setup(char *str)
{
int ints[10];
get_options(str, sizeof(ints)/sizeof(int), ints);
generic_NCR5380_setup(str,ints);
return 1;
}
static int __init do_NCR53C400_setup(char *str)
{
int ints[10];
get_options(str, sizeof(ints)/sizeof(int), ints);
generic_NCR53C400_setup(str,ints);
return 1;
}
static int __init do_NCR53C400A_setup(char *str)
{
int ints[10];
get_options(str, sizeof(ints)/sizeof(int), ints);
generic_NCR53C400A_setup(str,ints);
return 1;
}
static int __init do_DTC3181E_setup(char *str)
{
int ints[10];
get_options(str, sizeof(ints)/sizeof(int), ints);
generic_DTC3181E_setup(str,ints);
return 1;
}
__setup("ncr5380=", do_NCR5380_setup);
__setup("ncr53c400=", do_NCR53C400_setup);
__setup("ncr53c400a=", do_NCR53C400A_setup);
__setup("dtc3181e=", do_DTC3181E_setup);
static struct isapnp_device_id id_table[] __devinitdata = {
{
ISAPNP_ANY_ID, ISAPNP_ANY_ID,
ISAPNP_VENDOR('D','T','C'), ISAPNP_FUNCTION(0x436e),
0
},
ISAPNP_VENDOR('D', 'T', 'C'), ISAPNP_FUNCTION(0x436e),
0},
{0}
};
MODULE_DEVICE_TABLE(isapnp, id_table);
MODULE_LICENSE("GPL");
#endif
__setup("ncr5380=", do_NCR5380_setup);
__setup("ncr53c400=", do_NCR53C400_setup);
__setup("ncr53c400a=", do_NCR53C400A_setup);
__setup("dtc3181e=", do_DTC3181E_setup);
Markdown is supported
0% or
You are about to add 0 people to the discussion. Proceed with caution.
Finish editing this message first!
Please register or to comment
GitLab Nexedi Edition | About GitLab | About Nexedi | 沪ICP备2021021310号-2 | 沪ICP备2021021310号-7