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linux/drivers/scsi/g_NCR5380.c
Tim Schmielau cd354f1ae7 [PATCH] remove many unneeded #includes of sched.h 
After Al Viro (finally) succeeded in removing the sched.h #include in module.h
recently, it makes sense again to remove other superfluous sched.h includes.
There are quite a lot of files which include it but don't actually need
anything defined in there.  Presumably these includes were once needed for
macros that used to live in sched.h, but moved to other header files in the
course of cleaning it up.

To ease the pain, this time I did not fiddle with any header files and only
removed #includes from .c-files, which tend to cause less trouble.

Compile tested against 2.6.20-rc2 and 2.6.20-rc2-mm2 (with offsets) on alpha,
arm, i386, ia64, mips, powerpc, and x86_64 with allnoconfig, defconfig,
allmodconfig, and allyesconfig as well as a few randconfigs on x86_64 and all
configs in arch/arm/configs on arm.  I also checked that no new warnings were
introduced by the patch (actually, some warnings are removed that were emitted
by unnecessarily included header files).

Signed-off-by: Tim Schmielau <tim@physik3.uni-rostock.de>
Acked-by: Russell King <rmk+kernel@arm.linux.org.uk>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
2007-02-14 08:09:54 -08:00

956 lines
26 KiB
C
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/*
* Generic Generic NCR5380 driver
*
* Copyright 1993, Drew Eckhardt
* Visionary Computing
* (Unix and Linux consulting and custom programming)
* drew@colorado.edu
* +1 (303) 440-4894
*
* NCR53C400 extensions (c) 1994,1995,1996, Kevin Lentin
* K.Lentin@cs.monash.edu.au
*
* NCR53C400A extensions (c) 1996, Ingmar Baumgart
* ingmar@gonzo.schwaben.de
*
* DTC3181E extensions (c) 1997, Ronald van Cuijlenborg
* ronald.van.cuijlenborg@tip.nl or nutty@dds.nl
*
* Added ISAPNP support for DTC436 adapters,
* Thomas Sailer, sailer@ife.ee.ethz.ch
*
* ALPHA RELEASE 1.
*
* For more information, please consult
*
* NCR 5380 Family
* SCSI Protocol Controller
* Databook
*
* NCR Microelectronics
* 1635 Aeroplaza Drive
* Colorado Springs, CO 80916
* 1+ (719) 578-3400
* 1+ (800) 334-5454
*/
/*
* TODO : flesh out DMA support, find some one actually using this (I have
* a memory mapped Trantor board that works fine)
*/
/*
* Options :
*
* PARITY - enable parity checking. Not supported.
*
* SCSI2 - enable support for SCSI-II tagged queueing. Untested.
*
* USLEEP - enable support for devices that don't disconnect. Untested.
*
* The card is detected and initialized in one of several ways :
* 1. With command line overrides - NCR5380=port,irq may be
* used on the LILO command line to override the defaults.
*
* 2. With the GENERIC_NCR5380_OVERRIDE compile time define. This is
* specified as an array of address, irq, dma, board tuples. Ie, for
* one board at 0x350, IRQ5, no dma, I could say
* -DGENERIC_NCR5380_OVERRIDE={{0xcc000, 5, DMA_NONE, BOARD_NCR5380}}
*
* -1 should be specified for no or DMA interrupt, -2 to autoprobe for an
* IRQ line if overridden on the command line.
*
* 3. When included as a module, with arguments passed on the command line:
* ncr_irq=xx the interrupt
* ncr_addr=xx the port or base address (for port or memory
* mapped, resp.)
* ncr_dma=xx the DMA
* ncr_5380=1 to set up for a NCR5380 board
* ncr_53c400=1 to set up for a NCR53C400 board
* e.g.
* modprobe g_NCR5380 ncr_irq=5 ncr_addr=0x350 ncr_5380=1
* for a port mapped NCR5380 board or
* modprobe g_NCR5380 ncr_irq=255 ncr_addr=0xc8000 ncr_53c400=1
* for a memory mapped NCR53C400 board with interrupts disabled.
*
* 255 should be specified for no or DMA interrupt, 254 to autoprobe for an
* IRQ line if overridden on the command line.
*
*/
/*
* $Log: generic_NCR5380.c,v $
*/
/* settings for DTC3181E card with only Mustek scanner attached */
#define USLEEP
#define USLEEP_POLL 1
#define USLEEP_SLEEP 20
#define USLEEP_WAITLONG 500
#define AUTOPROBE_IRQ
#define AUTOSENSE
#ifdef CONFIG_SCSI_GENERIC_NCR53C400
#define NCR53C400_PSEUDO_DMA 1
#define PSEUDO_DMA
#define NCR53C400
#define NCR5380_STATS
#undef NCR5380_STAT_LIMIT
#endif
#include <asm/system.h>
#include <asm/io.h>
#include <linux/signal.h>
#include <linux/blkdev.h>
#include "scsi.h"
#include <scsi/scsi_host.h>
#include "g_NCR5380.h"
#include "NCR5380.h"
#include <linux/stat.h>
#include <linux/init.h>
#include <linux/ioport.h>
#include <linux/isapnp.h>
#include <linux/delay.h>
#include <linux/interrupt.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 struct override {
NCR5380_map_type NCR5380_map_name;
int irq;
int dma;
int board; /* Use NCR53c400, Ricoh, etc. extensions ? */
} overrides
#ifdef GENERIC_NCR5380_OVERRIDE
[] __initdata = GENERIC_NCR5380_OVERRIDE;
#else
[1] __initdata = { { 0,},};
#endif
#define NO_OVERRIDES ARRAY_SIZE(overrides)
#ifndef MODULE
/**
* internal_setup - handle lilo command string override
* @board: BOARD_* identifier for the board
* @str: unused
* @ints: numeric parameters
*
* 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 int commandline_current = 0;
switch (board) {
case BOARD_NCR5380:
if (ints[0] != 2 && ints[0] != 3) {
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(KERN_ERR "generic_NCR53C400_setup : usage ncr53c400=" STRVAL(NCR5380_map_name) ",irq\n");
return;
}
break;
case BOARD_NCR53C400A:
if (ints[0] != 2) {
printk(KERN_ERR "generic_NCR53C400A_setup : usage ncr53c400a=" STRVAL(NCR5380_map_name) ",irq\n");
return;
}
break;
case BOARD_DTC3181E:
if (ints[0] != 2) {
printk("generic_DTC3181E_setup : usage dtc3181e=" STRVAL(NCR5380_map_name) ",irq\n");
return;
}
break;
}
if (commandline_current < NO_OVERRIDES) {
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];
else
overrides[commandline_current].dma = DMA_NONE;
overrides[commandline_current].board = board;
++commandline_current;
}
}
/**
* do_NCR53C80_setup - set up entry point
* @str: unused
*
* Setup function invoked at boot to parse the ncr5380= command
* line.
*/
static int __init do_NCR5380_setup(char *str)
{
int ints[10];
get_options(str, ARRAY_SIZE(ints), ints);
internal_setup(BOARD_NCR5380, str, ints);
return 1;
}
/**
* do_NCR53C400_setup - set up entry point
* @str: unused
* @ints: integer parameters from kernel setup code
*
* Setup function invoked at boot to parse the ncr53c400= command
* line.
*/
static int __init do_NCR53C400_setup(char *str)
{
int ints[10];
get_options(str, ARRAY_SIZE(ints), ints);
internal_setup(BOARD_NCR53C400, str, ints);
return 1;
}
/**
* do_NCR53C400A_setup - set up entry point
* @str: unused
* @ints: integer parameters from kernel setup code
*
* Setup function invoked at boot to parse the ncr53c400a= command
* line.
*/
static int __init do_NCR53C400A_setup(char *str)
{
int ints[10];
get_options(str, ARRAY_SIZE(ints), ints);
internal_setup(BOARD_NCR53C400A, str, ints);
return 1;
}
/**
* do_DTC3181E_setup - set up entry point
* @str: unused
* @ints: integer parameters from kernel setup code
*
* Setup function invoked at boot to parse the dtc3181e= command
* line.
*/
static int __init do_DTC3181E_setup(char *str)
{
int ints[10];
get_options(str, ARRAY_SIZE(ints), ints);
internal_setup(BOARD_DTC3181E, str, ints);
return 1;
}
#endif
/**
* generic_NCR5380_detect - look for NCR5380 controllers
* @tpnt: the scsi template
*
* Scan for the present of NCR5380, NCR53C400, NCR53C400A, DTC3181E
* and DTC436(ISAPnP) controllers. If overrides have been set we use
* them.
*
* The caller supplied NCR5380_init function is invoked from here, before
* the interrupt line is taken.
*
* Locks: none
*/
int __init generic_NCR5380_detect(struct scsi_host_template * tpnt)
{
static int current_override = 0;
int count, i;
unsigned int *ports;
unsigned long region_size = 16;
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;
#ifdef CONFIG_SCSI_G_NCR5380_MEM
unsigned long base;
void __iomem *iomem;
#endif
if (ncr_irq != NCR_NOT_SET)
overrides[0].irq = ncr_irq;
if (ncr_dma != NCR_NOT_SET)
overrides[0].dma = ncr_dma;
if (ncr_addr != NCR_NOT_SET)
overrides[0].NCR5380_map_name = (NCR5380_map_type) ncr_addr;
if (ncr_5380 != NCR_NOT_SET)
overrides[0].board = BOARD_NCR5380;
else if (ncr_53c400 != NCR_NOT_SET)
overrides[0].board = BOARD_NCR53C400;
else if (ncr_53c400a != NCR_NOT_SET)
overrides[0].board = BOARD_NCR53C400A;
else if (dtc_3181e != NCR_NOT_SET)
overrides[0].board = BOARD_DTC3181E;
if (!current_override && isapnp_present()) {
struct pnp_dev *dev = NULL;
count = 0;
while ((dev = pnp_find_dev(NULL, ISAPNP_VENDOR('D', 'T', 'C'), ISAPNP_FUNCTION(0x436e), dev))) {
if (count >= NO_OVERRIDES)
break;
if (pnp_device_attach(dev) < 0) {
printk(KERN_ERR "dtc436e probe: attach failed\n");
continue;
}
if (pnp_activate_dev(dev) < 0) {
printk(KERN_ERR "dtc436e probe: activate failed\n");
pnp_device_detach(dev);
continue;
}
if (!pnp_port_valid(dev, 0)) {
printk(KERN_ERR "dtc436e probe: no valid port\n");
pnp_device_detach(dev);
continue;
}
if (pnp_irq_valid(dev, 0))
overrides[count].irq = pnp_irq(dev, 0);
else
overrides[count].irq = SCSI_IRQ_NONE;
if (pnp_dma_valid(dev, 0))
overrides[count].dma = pnp_dma(dev, 0);
else
overrides[count].dma = DMA_NONE;
overrides[count].NCR5380_map_name = (NCR5380_map_type) pnp_port_start(dev, 0);
overrides[count].board = BOARD_DTC3181E;
count++;
}
}
tpnt->proc_name = "g_NCR5380";
for (count = 0; current_override < NO_OVERRIDES; ++current_override) {
if (!(overrides[current_override].NCR5380_map_name))
continue;
ports = NULL;
switch (overrides[current_override].board) {
case BOARD_NCR5380:
flags = FLAG_NO_PSEUDO_DMA;
break;
case BOARD_NCR53C400:
flags = FLAG_NCR53C400;
break;
case BOARD_NCR53C400A:
flags = FLAG_NO_PSEUDO_DMA;
ports = ncr_53c400a_ports;
break;
case BOARD_DTC3181E:
flags = FLAG_NO_PSEUDO_DMA | FLAG_DTC3181E;
ports = dtc_3181e_ports;
break;
}
#ifndef CONFIG_SCSI_G_NCR5380_MEM
if (ports) {
/* wakeup sequence for the NCR53C400A and DTC3181E */
/* Disable the adapter and look for a free io port */
outb(0x59, 0x779);
outb(0xb9, 0x379);
outb(0xc5, 0x379);
outb(0xae, 0x379);
outb(0xa6, 0x379);
outb(0x00, 0x379);
if (overrides[current_override].NCR5380_map_name != PORT_AUTO)
for (i = 0; ports[i]; i++) {
if (!request_region(ports[i], 16, "ncr53c80"))
continue;
if (overrides[current_override].NCR5380_map_name == ports[i])
break;
release_region(ports[i], 16);
} else
for (i = 0; ports[i]; i++) {
if (!request_region(ports[i], 16, "ncr53c80"))
continue;
if (inb(ports[i]) == 0xff)
break;
release_region(ports[i], 16);
}
if (ports[i]) {
/* At this point we have our region reserved */
outb(0x59, 0x779);
outb(0xb9, 0x379);
outb(0xc5, 0x379);
outb(0xae, 0x379);
outb(0xa6, 0x379);
outb(0x80 | i, 0x379); /* set io port to be used */
outb(0xc0, ports[i] + 9);
if (inb(ports[i] + 9) != 0x80)
continue;
else
overrides[current_override].NCR5380_map_name = ports[i];
} else
continue;
}
else
{
/* Not a 53C400A style setup - just grab */
if(!(request_region(overrides[current_override].NCR5380_map_name, NCR5380_region_size, "ncr5380")))
continue;
region_size = NCR5380_region_size;
}
#else
base = overrides[current_override].NCR5380_map_name;
if (!request_mem_region(base, NCR5380_region_size, "ncr5380"))
continue;
iomem = ioremap(base, NCR5380_region_size);
if (!iomem) {
release_mem_region(base, NCR5380_region_size);
continue;
}
#endif
instance = scsi_register(tpnt, sizeof(struct NCR5380_hostdata));
if (instance == NULL) {
#ifndef CONFIG_SCSI_G_NCR5380_MEM
release_region(overrides[current_override].NCR5380_map_name, region_size);
#else
iounmap(iomem);
release_mem_region(base, NCR5380_region_size);
#endif
continue;
}
instance->NCR5380_instance_name = overrides[current_override].NCR5380_map_name;
#ifndef CONFIG_SCSI_G_NCR5380_MEM
instance->n_io_port = region_size;
#else
((struct NCR5380_hostdata *)instance->hostdata).iomem = iomem;
#endif
NCR5380_init(instance, flags);
if (overrides[current_override].irq != IRQ_AUTO)
instance->irq = overrides[current_override].irq;
else
instance->irq = NCR5380_probe_irq(instance, 0xffff);
if (instance->irq != SCSI_IRQ_NONE)
if (request_irq(instance->irq, generic_NCR5380_intr, IRQF_DISABLED, "NCR5380", instance)) {
printk(KERN_WARNING "scsi%d : IRQ%d not free, interrupts disabled\n", instance->host_no, instance->irq);
instance->irq = SCSI_IRQ_NONE;
}
if (instance->irq == SCSI_IRQ_NONE) {
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(KERN_INFO "scsi%d : at " STRVAL(NCR5380_map_name) " 0x%x", instance->host_no, (unsigned int) instance->NCR5380_instance_name);
if (instance->irq == SCSI_IRQ_NONE)
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);
NCR5380_print_options(instance);
printk("\n");
++current_override;
++count;
}
return count;
}
/**
* 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;
}
/**
* 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);
if (instance->irq != SCSI_IRQ_NONE)
free_irq(instance->irq, NULL);
NCR5380_exit(instance);
#ifndef CONFIG_SCSI_G_NCR5380_MEM
release_region(instance->NCR5380_instance_name, instance->n_io_port);
#else
iounmap(((struct NCR5380_hostdata *)instance->hostdata).iomem);
release_mem_region(instance->NCR5380_instance_name, NCR5380_region_size);
#endif
return 0;
}
#ifdef BIOSPARAM
/**
* generic_NCR5380_biosparam
* @disk: disk to compute geometry for
* @dev: device identifier for this disk
* @ip: sizes to fill in
*
* Generates a BIOS / DOS compatible H-C-S mapping for the specified
* device / size.
*
* 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.
*
* Locks: none
*/
static int
generic_NCR5380_biosparam(struct scsi_device *sdev, struct block_device *bdev,
sector_t capacity, int *ip)
{
ip[0] = 64;
ip[1] = 32;
ip[2] = capacity >> 11;
return 0;
}
#endif
#if NCR53C400_PSEUDO_DMA
/**
* 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;
NCR5380_local_declare();
NCR5380_setup(instance);
NCR5380_write(C400_CONTROL_STATUS_REG, CSR_BASE | CSR_TRANS_DIR);
NCR5380_write(C400_BLOCK_COUNTER_REG, blocks);
while (1) {
if ((bl = NCR5380_read(C400_BLOCK_COUNTER_REG)) == 0) {
break;
}
if (NCR5380_read(C400_CONTROL_STATUS_REG) & CSR_GATED_53C80_IRQ) {
printk(KERN_ERR "53C400r: Got 53C80_IRQ start=%d, blocks=%d\n", start, blocks);
return -1;
}
while (NCR5380_read(C400_CONTROL_STATUS_REG) & CSR_HOST_BUF_NOT_RDY);
#ifndef CONFIG_SCSI_G_NCR5380_MEM
{
int i;
for (i = 0; i < 128; i++)
dst[start + i] = NCR5380_read(C400_HOST_BUFFER);
}
#else
/* implies CONFIG_SCSI_G_NCR5380_MEM */
memcpy_fromio(dst + start, iomem + NCR53C400_host_buffer, 128);
#endif
start += 128;
blocks--;
}
if (blocks) {
while (NCR5380_read(C400_CONTROL_STATUS_REG) & CSR_HOST_BUF_NOT_RDY)
{
// FIXME - no timeout
}
#ifndef CONFIG_SCSI_G_NCR5380_MEM
{
int i;
for (i = 0; i < 128; i++)
dst[start + i] = NCR5380_read(C400_HOST_BUFFER);
}
#else
/* implies CONFIG_SCSI_G_NCR5380_MEM */
memcpy_fromio(dst + start, iomem + NCR53C400_host_buffer, 128);
#endif
start += 128;
blocks--;
}
if (!(NCR5380_read(C400_CONTROL_STATUS_REG) & CSR_GATED_53C80_IRQ))
printk("53C400r: no 53C80 gated irq after transfer");
#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)
;
#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;
}
/**
* 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 bl;
int i;
NCR5380_local_declare();
NCR5380_setup(instance);
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(KERN_ERR "53C400w: Got 53C80_IRQ start=%d, blocks=%d\n", start, blocks);
return -1;
}
if ((bl = NCR5380_read(C400_BLOCK_COUNTER_REG)) == 0) {
break;
}
while (NCR5380_read(C400_CONTROL_STATUS_REG) & CSR_HOST_BUF_NOT_RDY)
; // FIXME - timeout
#ifndef CONFIG_SCSI_G_NCR5380_MEM
{
for (i = 0; i < 128; i++)
NCR5380_write(C400_HOST_BUFFER, src[start + i]);
}
#else
/* implies CONFIG_SCSI_G_NCR5380_MEM */
memcpy_toio(iomem + NCR53C400_host_buffer, src + start, 128);
#endif
start += 128;
blocks--;
}
if (blocks) {
while (NCR5380_read(C400_CONTROL_STATUS_REG) & CSR_HOST_BUF_NOT_RDY)
; // FIXME - no timeout
#ifndef CONFIG_SCSI_G_NCR5380_MEM
{
for (i = 0; i < 128; i++)
NCR5380_write(C400_HOST_BUFFER, src[start + i]);
}
#else
/* implies CONFIG_SCSI_G_NCR5380_MEM */
memcpy_toio(iomem + NCR53C400_host_buffer, src + start, 128);
#endif
start += 128;
blocks--;
}
#if 0
printk("53C400w: waiting for registers to be available\n");
THEY NEVER DO ! while (NCR5380_read(C400_CONTROL_STATUS_REG) & CSR_53C80_REG);
printk("53C400w: Got em\n");
#endif
/* Let's wait for this instead - could be ugly */
/* All documentation says to check for this. Maybe my hardware is too
* 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 (!((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(KERN_ERR "53C400w: no end dma signal\n");
}
#endif
while (!(NCR5380_read(TARGET_COMMAND_REG) & TCR_LAST_BYTE_SENT))
; // 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)
{
int start = len;
PRINTP("0x%02x " ANDP opcode);
return len - start;
}
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)
PRINTP("%02x " ANDP command[i]);
PRINTP("\n");
return len - start;
}
/**
* 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->device->host->host_no ANDP cmd->device->id ANDP cmd->device->lun);
PRINTP(" command = ");
len += sprint_command(buffer, len, cmd->cmnd);
return len - start;
}
/**
* 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
*/
static int generic_NCR5380_proc_info(struct Scsi_Host *scsi_ptr, char *buffer, char **start, off_t offset, int length, int inout)
{
int len = 0;
NCR5380_local_declare();
unsigned long flags;
unsigned char status;
int i;
Scsi_Cmnd *ptr;
struct NCR5380_hostdata *hostdata;
#ifdef NCR5380_STATS
struct scsi_device *dev;
#endif
NCR5380_setup(scsi_ptr);
hostdata = (struct NCR5380_hostdata *) scsi_ptr->hostdata;
spin_lock_irqsave(scsi_ptr->host_lock, flags);
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");
# if NCR53C400_PSEUDO_DMA
PRINTP("NCR53C400 pseudo DMA used\n");
# endif
#else
PRINTP("NO NCR53C400 driver extensions\n");
#endif
PRINTP("Using %s mapping at %s 0x%lx, " ANDP STRVAL(NCR5380_map_config) ANDP STRVAL(NCR5380_map_name) ANDP scsi_ptr->NCR5380_instance_name);
if (scsi_ptr->irq == SCSI_IRQ_NONE)
PRINTP("no interrupt\n");
else
PRINTP("on interrupt %d\n" ANDP scsi_ptr->irq);
#ifdef NCR5380_STATS
if (hostdata->connected || hostdata->issue_queue || hostdata->disconnected_queue)
PRINTP("There are commands pending, transfer rates may be crud\n");
if (hostdata->pendingr)
PRINTP(" %d pending reads" ANDP hostdata->pendingr);
if (hostdata->pendingw)
PRINTP(" %d pending writes" ANDP hostdata->pendingw);
if (hostdata->pendingr || hostdata->pendingw)
PRINTP("\n");
shost_for_each_device(dev, scsi_ptr) {
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 scsi_device_type(dev->type));
for (i = 0; i < 8; i++)
if (dev->vendor[i] >= 0x20)
*(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++)
if (dev->rev[i] >= 0x20)
*(buffer + (len++)) = dev->rev[i];
*(buffer + (len++)) = ' ';
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);
if (tw)
PRINTP(" @ %5ld bps" ANDP bw / tw);
PRINTP("\n");
}
#endif
status = NCR5380_read(STATUS_REG);
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);
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);
}
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);
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);
*start = buffer + offset;
len -= offset;
if (len > length)
len = length;
spin_unlock_irqrestore(scsi_ptr->host_lock, flags);
return len;
}
#undef PRINTP
#undef ANDP
static struct scsi_host_template driver_template = {
.proc_info = generic_NCR5380_proc_info,
.name = "Generic NCR5380/NCR53C400 Scsi Driver",
.detect = generic_NCR5380_detect,
.release = generic_NCR5380_release_resources,
.info = generic_NCR5380_info,
.queuecommand = generic_NCR5380_queue_command,
.eh_abort_handler = generic_NCR5380_abort,
.eh_bus_reset_handler = generic_NCR5380_bus_reset,
.bios_param = NCR5380_BIOSPARAM,
.can_queue = CAN_QUEUE,
.this_id = 7,
.sg_tablesize = SG_ALL,
.cmd_per_lun = CMD_PER_LUN,
.use_clustering = DISABLE_CLUSTERING,
};
#include <linux/module.h>
#include "scsi_module.c"
module_param(ncr_irq, int, 0);
module_param(ncr_dma, int, 0);
module_param(ncr_addr, int, 0);
module_param(ncr_5380, int, 0);
module_param(ncr_53c400, int, 0);
module_param(ncr_53c400a, int, 0);
module_param(dtc_3181e, int, 0);
MODULE_LICENSE("GPL");
static struct isapnp_device_id id_table[] __devinitdata = {
{
ISAPNP_ANY_ID, ISAPNP_ANY_ID,
ISAPNP_VENDOR('D', 'T', 'C'), ISAPNP_FUNCTION(0x436e),
0},
{0}
};
MODULE_DEVICE_TABLE(isapnp, id_table);
__setup("ncr5380=", do_NCR5380_setup);
__setup("ncr53c400=", do_NCR53C400_setup);
__setup("ncr53c400a=", do_NCR53C400A_setup);
__setup("dtc3181e=", do_DTC3181E_setup);
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