g_NCR5380.c
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上传日期:2013-02-24
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文件大小:25k
- /*
- * 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
- #include <linux/config.h>
- #ifdef CONFIG_SCSI_GENERIC_NCR53C400
- #define NCR53C400_PSEUDO_DMA 1
- #define PSEUDO_DMA
- #define NCR53C400
- #define NCR5380_STATS
- #undef NCR5380_STAT_LIMIT
- #endif
- #if defined(CONFIG_SCSI_G_NCR5380_PORT) && defined(CONFIG_SCSI_G_NCR5380_MEM)
- #error You can not configure the Generic NCR 5380 SCSI Driver for memory mapped I/O and port mapped I/O at the same time (yet)
- #endif
- #if !defined(CONFIG_SCSI_G_NCR5380_PORT) && !defined(CONFIG_SCSI_G_NCR5380_MEM)
- #error You must configure the Generic NCR 5380 SCSI Driver for one of memory mapped I/O and port mapped I/O.
- #endif
- #include <asm/system.h>
- #include <asm/io.h>
- #include <linux/signal.h>
- #include <linux/sched.h>
- #include <linux/blk.h>
- #include "scsi.h"
- #include "hosts.h"
- #include "g_NCR5380.h"
- #include "NCR5380.h"
- #include "constants.h"
- #include "sd.h"
- #include <linux/stat.h>
- #include <linux/init.h>
- #include <linux/ioport.h>
- #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 struct override {
- NCR5380_implementation_fields;
- 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 (sizeof(overrides) / sizeof(struct override))
- /**
- * 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,dman");
- return;
- }
- break;
- case BOARD_NCR53C400:
- if (ints[0] != 2) {
- printk(KERN_ERR "generic_NCR53C400_setup : usage ncr53c400=" STRVAL(NCR5380_map_name) ",irqn");
- return;
- }
- break;
- case BOARD_NCR53C400A:
- if (ints[0] != 2) {
- printk(KERN_ERR "generic_NCR53C400A_setup : usage ncr53c400a=" STRVAL(NCR5380_map_name) ",irqn");
- return;
- }
- break;
- case BOARD_DTC3181E:
- if (ints[0] != 2) {
- printk("generic_DTC3181E_setup : usage dtc3181e=" STRVAL(NCR5380_map_name) ",irqn");
- 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, sizeof(ints) / sizeof(int), 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, sizeof(ints) / sizeof(int), 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, sizeof(ints) / sizeof(int), 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, sizeof(ints) / sizeof(int), ints);
- internal_setup(BOARD_DTC3181E, str, ints);
- return 1;
- }
- /**
- * 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(Scsi_Host_Template * tpnt)
- {
- static int current_override = 0;
- int count, i;
- 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;
- 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 pci_dev *dev = NULL;
- count = 0;
- 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) {
- printk(KERN_ERR "dtc436e probe: prepare failedn");
- continue;
- }
- if (!(dev->resource[0].flags & IORESOURCE_IO))
- continue;
- if (!dev->active && dev->activate(dev) < 0) {
- printk(KERN_ERR "dtc436e probe: activate failedn");
- continue;
- }
- if (dev->irq_resource[0].flags & IORESOURCE_IRQ)
- overrides[count].irq = dev->irq_resource[0].start;
- else
- overrides[count].irq = IRQ_NONE;
- if (dev->dma_resource[0].flags & IORESOURCE_DMA)
- 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;
- count++;
- }
- }
- tpnt->proc_name = "g_NCR5380";
- for (count = 0; current_override < NO_OVERRIDES; ++current_override) {
- if (!(overrides[current_override].NCR5380_map_name))
- continue;
- ports = 0;
- 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;
- }
- #ifdef CONFIG_SCSI_G_NCR5380_PORT
- 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 (overrides[current_override].NCR5380_map_name == ports[i])
- break;
- } else
- for (i = 0; ports[i]; i++) {
- if ((!check_region(ports[i], 16)) && (inb(ports[i]) == 0xff))
- break;
- }
- if (ports[i]) {
- 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;
- }
- 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))
- continue;
- 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) {
- #ifdef CONFIG_SCSI_G_NCR5380_PORT
- release_region(overrides[current_override].NCR5380_map_name, NCR5380_region_size);
- #else
- release_mem_region(overrides[current_override].NCR5380_map_name, NCR5380_region_size);
- #endif
- continue;
- }
- instance->NCR5380_instance_name = overrides[current_override].NCR5380_map_name;
- 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 != IRQ_NONE)
- if (request_irq(instance->irq, do_generic_NCR5380_intr, SA_INTERRUPT, "NCR5380", NULL)) {
- printk(KERN_WARNING "scsi%d : IRQ%d not free, interrupts disabledn", instance->host_no, instance->irq);
- instance->irq = IRQ_NONE;
- }
- if (instance->irq == 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 == 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);
- #ifdef CONFIG_SCSI_G_NCR5380_PORT
- release_region(instance->NCR5380_instance_name, NCR5380_region_size);
- #else
- release_mem_region(instance->NCR5380_instance_name, NCR5380_region_size);
- #endif
- if (instance->irq != IRQ_NONE)
- free_irq(instance->irq, NULL);
- 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
- */
- int generic_NCR5380_biosparam(Disk * disk, kdev_t dev, int *ip)
- {
- int size = disk->capacity;
- ip[0] = 64;
- ip[1] = 32;
- ip[2] = size >> 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=%dn", start, blocks);
- return -1;
- }
- while (NCR5380_read(C400_CONTROL_STATUS_REG) & CSR_HOST_BUF_NOT_RDY);
- #ifdef CONFIG_SCSI_G_NCR5380_PORT
- {
- 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);
- #endif
- start += 128;
- blocks--;
- }
- if (blocks) {
- while (NCR5380_read(C400_CONTROL_STATUS_REG) & CSR_HOST_BUF_NOT_RDY)
- {
- // FIXME - no timeout
- }
- #ifdef CONFIG_SCSI_G_NCR5380_PORT
- {
- 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);
- #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 registersn");
- 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 signaln");
-
- 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=%dn", 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
- #ifdef CONFIG_SCSI_G_NCR5380_PORT
- {
- 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);
- #endif
- start += 128;
- blocks--;
- }
- if (blocks) {
- while (NCR5380_read(C400_CONTROL_STATUS_REG) & CSR_HOST_BUF_NOT_RDY)
- ; // FIXME - no timeout
- #ifdef CONFIG_SCSI_G_NCR5380_PORT
- {
- 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);
- #endif
- start += 128;
- blocks--;
- }
- #if 0
- printk("53C400w: waiting for registers to be availablen");
- THEY NEVER DO ! while (NCR5380_read(C400_CONTROL_STATUS_REG) & CSR_53C80_REG);
- printk("53C400w: Got emn");
- #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=%0xn", 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 signaln");
- }
- #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 %dn" ANDP cmd->host->host_no ANDP cmd->target ANDP cmd->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
- */
-
- int generic_NCR5380_proc_info(char *buffer, char **start, off_t offset, int length, int hostno, int inout)
- {
- int len = 0;
- NCR5380_local_declare();
- unsigned long flags;
- unsigned char status;
- int i;
- struct Scsi_Host *scsi_ptr;
- Scsi_Cmnd *ptr;
- struct NCR5380_hostdata *hostdata;
- #ifdef NCR5380_STATS
- Scsi_Device *dev;
- extern const char *const scsi_device_types[MAX_SCSI_DEVICE_CODE];
- #endif
- save_flags(flags);
- cli();
- 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;
- PRINTP("SCSI host number %d : %sn" ANDP scsi_ptr->host_no ANDP scsi_ptr->hostt->name);
- PRINTP("Generic NCR5380 driver version %dn" ANDP GENERIC_NCR5380_PUBLIC_RELEASE);
- PRINTP("NCR5380 core version %dn" ANDP NCR5380_PUBLIC_RELEASE);
- #ifdef NCR53C400
- PRINTP("NCR53C400 extension version %dn" ANDP NCR53C400_PUBLIC_RELEASE);
- PRINTP("NCR53C400 card%s detectedn" ANDP(((struct NCR5380_hostdata *) scsi_ptr->hostdata)->flags & FLAG_NCR53C400) ? "" : " not");
- # if NCR53C400_PSEUDO_DMA
- PRINTP("NCR53C400 pseudo DMA usedn");
- # endif
- #else
- PRINTP("NO NCR53C400 driver extensionsn");
- #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 == IRQ_NONE)
- PRINTP("no interruptn");
- else
- PRINTP("on interrupt %dn" 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 crudn");
- 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");
- 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++)
- 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 %sn" ANDP phases[i].name);
- }
- if (!hostdata->connected) {
- PRINTP("No currently connected commandn");
- } else {
- len += sprint_Scsi_Cmnd(buffer, len, (Scsi_Cmnd *) hostdata->connected);
- }
- PRINTP("issue_queuen");
- for (ptr = (Scsi_Cmnd *) hostdata->issue_queue; ptr; ptr = (Scsi_Cmnd *) ptr->host_scribble)
- len += sprint_Scsi_Cmnd(buffer, len, ptr);
- PRINTP("disconnected_queuen");
- 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;
- restore_flags(flags);
- return len;
- }
- #undef PRINTP
- #undef ANDP
- /*
- * 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"
- MODULE_PARM(ncr_irq, "i");
- MODULE_PARM(ncr_dma, "i");
- MODULE_PARM(ncr_addr, "i");
- MODULE_PARM(ncr_5380, "i");
- MODULE_PARM(ncr_53c400, "i");
- MODULE_PARM(ncr_53c400a, "i");
- MODULE_PARM(dtc_3181e, "i");
- 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);