| /* |
| * 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 |
| */ |
| |
| /* |
| * TODO : flesh out DMA support, find some one actually using this (I have |
| * a memory mapped Trantor board that works fine) |
| */ |
| |
| /* |
| * 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. |
| * |
| */ |
| |
| /* settings for DTC3181E card with only Mustek scanner attached */ |
| #define USLEEP_POLL 1 |
| #define USLEEP_SLEEP 20 |
| #define USLEEP_WAITLONG 500 |
| |
| #define AUTOPROBE_IRQ |
| |
| #ifdef CONFIG_SCSI_GENERIC_NCR53C400 |
| #define NCR53C400_PSEUDO_DMA 1 |
| #define PSEUDO_DMA |
| #define NCR53C400 |
| #endif |
| |
| #include <asm/io.h> |
| #include <linux/signal.h> |
| #include <linux/blkdev.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 |
| */ |
| |
| static int __init generic_NCR5380_detect(struct scsi_host_template *tpnt) |
| { |
| static int current_override = 0; |
| int count; |
| unsigned int *ports; |
| #ifndef SCSI_G_NCR5380_MEM |
| int i; |
| unsigned long region_size = 16; |
| #endif |
| 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 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; |
| #ifndef SCSI_G_NCR5380_MEM |
| 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) |
| 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 = NO_IRQ; |
| 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++; |
| } |
| } |
| #endif |
| 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 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 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 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); |
| |
| /* Compatibility with documented NCR5380 kernel parameters */ |
| if (instance->irq == 255) |
| instance->irq = NO_IRQ; |
| |
| if (instance->irq != NO_IRQ) |
| if (request_irq(instance->irq, generic_NCR5380_intr, |
| 0, "NCR5380", instance)) { |
| printk(KERN_WARNING "scsi%d : IRQ%d not free, interrupts disabled\n", instance->host_no, instance->irq); |
| instance->irq = NO_IRQ; |
| } |
| |
| if (instance->irq == NO_IRQ) { |
| 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); |
| } |
| |
| ++current_override; |
| ++count; |
| } |
| return count; |
| } |
| |
| /** |
| * generic_NCR5380_release_resources - free resources |
| * @instance: host adapter to clean up |
| * |
| * Free the generic interface resources from this adapter. |
| * |
| * Locks: none |
| */ |
| |
| static int generic_NCR5380_release_resources(struct Scsi_Host *instance) |
| { |
| NCR5380_local_declare(); |
| NCR5380_setup(instance); |
| |
| if (instance->irq != NO_IRQ) |
| free_irq(instance->irq, instance); |
| NCR5380_exit(instance); |
| |
| #ifndef 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 |
| |
| #ifdef NCR53C400_PSEUDO_DMA |
| |
| /** |
| * NCR5380_pread - pseudo DMA read |
| * @instance: adapter to read from |
| * @dst: buffer to read into |
| * @len: buffer length |
| * |
| * Perform a pseudo 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 SCSI_G_NCR5380_MEM |
| { |
| int i; |
| for (i = 0; i < 128; i++) |
| dst[start + i] = NCR5380_read(C400_HOST_BUFFER); |
| } |
| #else |
| /* implies 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 SCSI_G_NCR5380_MEM |
| { |
| int i; |
| for (i = 0; i < 128; i++) |
| dst[start + i] = NCR5380_read(C400_HOST_BUFFER); |
| } |
| #else |
| /* implies 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 pseudo 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 SCSI_G_NCR5380_MEM |
| { |
| for (i = 0; i < 128; i++) |
| NCR5380_write(C400_HOST_BUFFER, src[start + i]); |
| } |
| #else |
| /* implies 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 SCSI_G_NCR5380_MEM |
| { |
| for (i = 0; i < 128; i++) |
| NCR5380_write(C400_HOST_BUFFER, src[start + i]); |
| } |
| #else |
| /* implies 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" |
| |
| static struct scsi_host_template driver_template = { |
| .show_info = generic_NCR5380_show_info, |
| .name = "Generic NCR5380/NCR53C400 SCSI", |
| .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"); |
| |
| #if !defined(SCSI_G_NCR5380_MEM) && defined(MODULE) |
| static struct isapnp_device_id id_table[] = { |
| { |
| ISAPNP_ANY_ID, ISAPNP_ANY_ID, |
| ISAPNP_VENDOR('D', 'T', 'C'), ISAPNP_FUNCTION(0x436e), |
| 0}, |
| {0} |
| }; |
| |
| MODULE_DEVICE_TABLE(isapnp, id_table); |
| #endif |
| |
| __setup("ncr5380=", do_NCR5380_setup); |
| __setup("ncr53c400=", do_NCR53C400_setup); |
| __setup("ncr53c400a=", do_NCR53C400A_setup); |
| __setup("dtc3181e=", do_DTC3181E_setup); |