diff options
| -rw-r--r-- | Documentation/scsi/dtc3x80.txt | 43 | ||||
| -rw-r--r-- | Documentation/scsi/scsi-parameters.txt | 3 | ||||
| -rw-r--r-- | MAINTAINERS | 2 | ||||
| -rw-r--r-- | drivers/scsi/Kconfig | 14 | ||||
| -rw-r--r-- | drivers/scsi/Makefile | 1 | ||||
| -rw-r--r-- | drivers/scsi/dtc.c | 447 | ||||
| -rw-r--r-- | drivers/scsi/dtc.h | 42 |
7 files changed, 0 insertions, 552 deletions
diff --git a/Documentation/scsi/dtc3x80.txt b/Documentation/scsi/dtc3x80.txt deleted file mode 100644 index 1d7af9f9a8ed..000000000000 --- a/Documentation/scsi/dtc3x80.txt +++ /dev/null @@ -1,43 +0,0 @@ -README file for the Linux DTC3180/3280 scsi driver. -by Ray Van Tassle (rayvt@comm.mot.com) March 1996 -Based on the generic & core NCR5380 code by Drew Eckhard - -SCSI device driver for the DTC 3180/3280. -Data Technology Corp---a division of Qume. - -The 3280 has a standard floppy interface. - -The 3180 does not. Otherwise, they are identical. - -The DTC3x80 does not support DMA but it does have Pseudo-DMA which is -supported by the driver. - -Its DTC406 scsi chip is supposedly compatible with the NCR 53C400. -It is memory mapped, uses an IRQ, but no dma or io-port. There is -internal DMA, between SCSI bus and an on-chip 128-byte buffer. Double -buffering is done automagically by the chip. Data is transferred -between the on-chip buffer and CPU/RAM via memory moves. - -The driver detects the possible memory addresses (jumper selectable): - CC00, DC00, C800, and D800 -The possible IRQ's (jumper selectable) are: - IRQ 10, 11, 12, 15 -Parity is supported by the chip, but not by this driver. -Information can be obtained from /proc/scsi/dtc3c80/N. - -Note on interrupts: - -The documentation says that it can be set to interrupt whenever the -on-chip buffer needs CPU attention. I couldn't get this to work. So -the driver polls for data-ready in the pseudo-DMA transfer routine. -The interrupt support routines in the NCR3280.c core modules handle -scsi disconnect/reconnect, and this (mostly) works. However..... I -have tested it with 4 totally different hard drives (both SCSI-1 and -SCSI-2), and one CDROM drive. Interrupts works great for all but one -specific hard drive. For this one, the driver will eventually hang in -the transfer state. I have tested with: "dd bs=4k count=2k -of=/dev/null if=/dev/sdb". It reads ok for a while, then hangs. -After beating my head against this for a couple of weeks, getting -nowhere, I give up. So.....This driver does NOT use interrupts, even -if you have the card jumpered to an IRQ. Probably nobody will ever -care. diff --git a/Documentation/scsi/scsi-parameters.txt b/Documentation/scsi/scsi-parameters.txt index 00a03c0cd8c2..8e66dafa41e1 100644 --- a/Documentation/scsi/scsi-parameters.txt +++ b/Documentation/scsi/scsi-parameters.txt @@ -34,9 +34,6 @@ parameters may be changed at runtime by the command See drivers/scsi/BusLogic.c, comment before function BusLogic_ParseDriverOptions(). - dtc3181e= [HW,SCSI] - See Documentation/scsi/g_NCR5380.txt. - eata= [HW,SCSI] fdomain= [HW,SCSI] diff --git a/MAINTAINERS b/MAINTAINERS index e4ec1b8abbb7..48f2b480ac6e 100644 --- a/MAINTAINERS +++ b/MAINTAINERS @@ -8042,13 +8042,11 @@ M: Michael Schmitz <schmitzmic@gmail.com> L: linux-scsi@vger.kernel.org S: Maintained F: Documentation/scsi/g_NCR5380.txt -F: Documentation/scsi/dtc3x80.txt F: drivers/scsi/NCR5380.* F: drivers/scsi/arm/cumana_1.c F: drivers/scsi/arm/oak.c F: drivers/scsi/atari_scsi.* F: drivers/scsi/dmx3191d.c -F: drivers/scsi/dtc.* F: drivers/scsi/g_NCR5380.* F: drivers/scsi/g_NCR5380_mmio.c F: drivers/scsi/mac_scsi.* diff --git a/drivers/scsi/Kconfig b/drivers/scsi/Kconfig index a38e37cd722c..3e2bdb90813c 100644 --- a/drivers/scsi/Kconfig +++ b/drivers/scsi/Kconfig @@ -637,20 +637,6 @@ config SCSI_DMX3191D To compile this driver as a module, choose M here: the module will be called dmx3191d. -config SCSI_DTC3280 - tristate "DTC3180/3280 SCSI support" - depends on ISA && SCSI - select SCSI_SPI_ATTRS - select CHECK_SIGNATURE - help - This is support for DTC 3180/3280 SCSI Host Adapters. Please read - the SCSI-HOWTO, available from - <http://www.tldp.org/docs.html#howto>, and the file - <file:Documentation/scsi/dtc3x80.txt>. - - To compile this driver as a module, choose M here: the - module will be called dtc. - config SCSI_EATA tristate "EATA ISA/EISA/PCI (DPT and generic EATA/DMA-compliant boards) support" depends on (ISA || EISA || PCI) && SCSI && ISA_DMA_API diff --git a/drivers/scsi/Makefile b/drivers/scsi/Makefile index 392609a1190a..38d938d7fe67 100644 --- a/drivers/scsi/Makefile +++ b/drivers/scsi/Makefile @@ -90,7 +90,6 @@ obj-$(CONFIG_SCSI_CHELSIO_FCOE) += csiostor/ obj-$(CONFIG_SCSI_DMX3191D) += dmx3191d.o obj-$(CONFIG_SCSI_HPSA) += hpsa.o obj-$(CONFIG_SCSI_SMARTPQI) += smartpqi/ -obj-$(CONFIG_SCSI_DTC3280) += dtc.o obj-$(CONFIG_SCSI_SYM53C8XX_2) += sym53c8xx_2/ obj-$(CONFIG_SCSI_ZALON) += zalon7xx.o obj-$(CONFIG_SCSI_EATA_PIO) += eata_pio.o diff --git a/drivers/scsi/dtc.c b/drivers/scsi/dtc.c deleted file mode 100644 index 459863f94e46..000000000000 --- a/drivers/scsi/dtc.c +++ /dev/null @@ -1,447 +0,0 @@ -/* - * DTC 3180/3280 driver, by - * Ray Van Tassle rayvt@comm.mot.com - * - * taken from ... - * Trantor T128/T128F/T228 driver by... - * - * Drew Eckhardt - * Visionary Computing - * (Unix and Linux consulting and custom programming) - * drew@colorado.edu - * +1 (303) 440-4894 - */ - -/* - * The card is detected and initialized in one of several ways : - * 1. Autoprobe (default) - since the board is memory mapped, - * a BIOS signature is scanned for to locate the registers. - * An interrupt is triggered to autoprobe for the interrupt - * line. - * - * 2. With command line overrides - dtc=address,irq may be - * used on the LILO command line to override the defaults. - * -*/ - -/*----------------------------------------------------------------*/ -/* the following will set the monitor border color (useful to find - where something crashed or gets stuck at */ -/* 1 = blue - 2 = green - 3 = cyan - 4 = red - 5 = magenta - 6 = yellow - 7 = white -*/ -#if 0 -#define rtrc(i) {inb(0x3da); outb(0x31, 0x3c0); outb((i), 0x3c0);} -#else -#define rtrc(i) {} -#endif - - -#include <linux/module.h> -#include <linux/blkdev.h> -#include <linux/string.h> -#include <linux/init.h> -#include <linux/interrupt.h> -#include <linux/io.h> -#include <scsi/scsi_host.h> - -#include "dtc.h" -#include "NCR5380.h" - -/* - * The DTC3180 & 3280 boards are memory mapped. - * - */ - -/* - */ -/* Offset from DTC_5380_OFFSET */ -#define DTC_CONTROL_REG 0x100 /* rw */ -#define D_CR_ACCESS 0x80 /* ro set=can access 3280 registers */ -#define CSR_DIR_READ 0x40 /* rw direction, 1 = read 0 = write */ - -#define CSR_RESET 0x80 /* wo Resets 53c400 */ -#define CSR_5380_REG 0x80 /* ro 5380 registers can be accessed */ -#define CSR_TRANS_DIR 0x40 /* rw Data transfer direction */ -#define CSR_SCSI_BUFF_INTR 0x20 /* rw Enable int on transfer ready */ -#define CSR_5380_INTR 0x10 /* rw Enable 5380 interrupts */ -#define CSR_SHARED_INTR 0x08 /* rw Interrupt sharing */ -#define CSR_HOST_BUF_NOT_RDY 0x04 /* ro Host buffer not ready */ -#define CSR_SCSI_BUF_RDY 0x02 /* ro SCSI buffer ready */ -#define CSR_GATED_5380_IRQ 0x01 /* ro Last block xferred */ -#define CSR_INT_BASE (CSR_SCSI_BUFF_INTR | CSR_5380_INTR) - - -#define DTC_BLK_CNT 0x101 /* rw - * # of 128-byte blocks to transfer */ - - -#define D_CR_ACCESS 0x80 /* ro set=can access 3280 registers */ - -#define DTC_SWITCH_REG 0x3982 /* ro - DIP switches */ -#define DTC_RESUME_XFER 0x3982 /* wo - resume data xfer - * after disconnect/reconnect*/ - -#define DTC_5380_OFFSET 0x3880 /* 8 registers here, see NCR5380.h */ - -/*!!!! for dtc, it's a 128 byte buffer at 3900 !!! */ -#define DTC_DATA_BUF 0x3900 /* rw 128 bytes long */ - -static struct override { - unsigned int address; - int irq; -} overrides -#ifdef OVERRIDE -[] __initdata = OVERRIDE; -#else -[4] __initdata = { - { 0, IRQ_AUTO }, { 0, IRQ_AUTO }, { 0, IRQ_AUTO }, { 0, IRQ_AUTO } -}; -#endif - -#define NO_OVERRIDES ARRAY_SIZE(overrides) - -static struct base { - unsigned long address; - int noauto; -} bases[] __initdata = { - { 0xcc000, 0 }, - { 0xc8000, 0 }, - { 0xdc000, 0 }, - { 0xd8000, 0 } -}; - -#define NO_BASES ARRAY_SIZE(bases) - -static const struct signature { - const char *string; - int offset; -} signatures[] = { - {"DATA TECHNOLOGY CORPORATION BIOS", 0x25}, -}; - -#define NO_SIGNATURES ARRAY_SIZE(signatures) - -#ifndef MODULE -/* - * Function : dtc_setup(char *str, int *ints) - * - * 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. - * - */ - -static int __init dtc_setup(char *str) -{ - static int commandline_current; - int i; - int ints[10]; - - get_options(str, ARRAY_SIZE(ints), ints); - if (ints[0] != 2) - printk("dtc_setup: usage dtc=address,irq\n"); - else if (commandline_current < NO_OVERRIDES) { - overrides[commandline_current].address = ints[1]; - overrides[commandline_current].irq = ints[2]; - for (i = 0; i < NO_BASES; ++i) - if (bases[i].address == ints[1]) { - bases[i].noauto = 1; - break; - } - ++commandline_current; - } - return 1; -} - -__setup("dtc=", dtc_setup); -#endif - -/* - * Function : int dtc_detect(struct scsi_host_template * tpnt) - * - * Purpose : detects and initializes DTC 3180/3280 controllers - * that were autoprobed, overridden on the LILO command line, - * or specified at compile time. - * - * Inputs : tpnt - template for this SCSI adapter. - * - * Returns : 1 if a host adapter was found, 0 if not. - * -*/ - -static int __init dtc_detect(struct scsi_host_template * tpnt) -{ - static int current_override, current_base; - struct Scsi_Host *instance; - unsigned int addr; - void __iomem *base; - int sig, count; - - for (count = 0; current_override < NO_OVERRIDES; ++current_override) { - addr = 0; - base = NULL; - - if (overrides[current_override].address) { - addr = overrides[current_override].address; - base = ioremap(addr, 0x2000); - if (!base) - addr = 0; - } else - for (; !addr && (current_base < NO_BASES); ++current_base) { - dprintk(NDEBUG_INIT, "dtc: probing address 0x%08x\n", - (unsigned int)bases[current_base].address); - if (bases[current_base].noauto) - continue; - base = ioremap(bases[current_base].address, 0x2000); - if (!base) - continue; - for (sig = 0; sig < NO_SIGNATURES; ++sig) { - if (check_signature(base + signatures[sig].offset, signatures[sig].string, strlen(signatures[sig].string))) { - addr = bases[current_base].address; - dprintk(NDEBUG_INIT, "dtc: detected board\n"); - goto found; - } - } - iounmap(base); - } - - dprintk(NDEBUG_INIT, "dtc: addr = 0x%08x\n", addr); - - if (!addr) - break; - -found: - instance = scsi_register(tpnt, sizeof(struct NCR5380_hostdata)); - if (instance == NULL) - goto out_unmap; - - instance->base = addr; - ((struct NCR5380_hostdata *)(instance)->hostdata)->base = base; - - if (NCR5380_init(instance, FLAG_LATE_DMA_SETUP)) - goto out_unregister; - - NCR5380_maybe_reset_bus(instance); - - NCR5380_write(DTC_CONTROL_REG, CSR_5380_INTR); /* Enable int's */ - if (overrides[current_override].irq != IRQ_AUTO) - instance->irq = overrides[current_override].irq; - else - instance->irq = NCR5380_probe_irq(instance, DTC_IRQS); - - /* Compatibility with documented NCR5380 kernel parameters */ - if (instance->irq == 255) - instance->irq = NO_IRQ; - - /* With interrupts enabled, it will sometimes hang when doing heavy - * reads. So better not enable them until I finger it out. */ - instance->irq = NO_IRQ; - - if (instance->irq != NO_IRQ) - if (request_irq(instance->irq, dtc_intr, 0, - "dtc", instance)) { - printk(KERN_ERR "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_WARNING "scsi%d : interrupts not enabled. for better interactive performance,\n", instance->host_no); - printk(KERN_WARNING "scsi%d : please jumper the board for a free IRQ.\n", instance->host_no); - } - - dprintk(NDEBUG_INIT, "scsi%d : irq = %d\n", - instance->host_no, instance->irq); - - ++current_override; - ++count; - } - return count; - -out_unregister: - scsi_unregister(instance); -out_unmap: - iounmap(base); - return count; -} - -/* - * Function : int dtc_biosparam(Disk * disk, struct block_device *dev, int *ip) - * - * Purpose : Generates a BIOS / DOS compatible H-C-S mapping for - * the specified device / size. - * - * Inputs : size = size of device in sectors (512 bytes), dev = block device - * major / minor, ip[] = {heads, sectors, cylinders} - * - * Returns : always 0 (success), initializes ip - * -*/ - -/* - * 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. -*/ - -static int dtc_biosparam(struct scsi_device *sdev, struct block_device *dev, - sector_t capacity, int *ip) -{ - int size = capacity; - - ip[0] = 64; - ip[1] = 32; - ip[2] = size >> 11; - return 0; -} - - -/**************************************************************** - * Function : int NCR5380_pread (struct Scsi_Host *instance, - * unsigned char *dst, int len) - * - * Purpose : Fast 5380 pseudo-dma read function, reads len bytes to - * dst - * - * Inputs : dst = destination, len = length in bytes - * - * Returns : 0 on success, non zero on a failure such as a watchdog - * timeout. -*/ - -static inline int dtc_pread(struct Scsi_Host *instance, - unsigned char *dst, int len) -{ - unsigned char *d = dst; - int i; /* For counting time spent in the poll-loop */ - struct NCR5380_hostdata *hostdata = shost_priv(instance); - - i = 0; - if (instance->irq == NO_IRQ) - NCR5380_write(DTC_CONTROL_REG, CSR_DIR_READ); - else - NCR5380_write(DTC_CONTROL_REG, CSR_DIR_READ | CSR_INT_BASE); - NCR5380_write(DTC_BLK_CNT, len >> 7); /* Block count */ - rtrc(1); - while (len > 0) { - rtrc(2); - while (NCR5380_read(DTC_CONTROL_REG) & CSR_HOST_BUF_NOT_RDY) - ++i; - rtrc(3); - memcpy_fromio(d, hostdata->base + DTC_DATA_BUF, 128); - d += 128; - len -= 128; - rtrc(7); - /*** with int's on, it sometimes hangs after here. - * Looks like something makes HBNR go away. */ - } - rtrc(4); - while (!(NCR5380_read(DTC_CONTROL_REG) & D_CR_ACCESS)) - ++i; - rtrc(0); - return (0); -} - -/**************************************************************** - * Function : int NCR5380_pwrite (struct Scsi_Host *instance, - * unsigned char *src, int len) - * - * Purpose : Fast 5380 pseudo-dma write function, transfers len bytes from - * src - * - * Inputs : src = source, len = length in bytes - * - * Returns : 0 on success, non zero on a failure such as a watchdog - * timeout. -*/ - -static inline int dtc_pwrite(struct Scsi_Host *instance, - unsigned char *src, int len) -{ - int i; - struct NCR5380_hostdata *hostdata = shost_priv(instance); - - if (instance->irq == NO_IRQ) - NCR5380_write(DTC_CONTROL_REG, 0); - else - NCR5380_write(DTC_CONTROL_REG, CSR_5380_INTR); - NCR5380_write(DTC_BLK_CNT, len >> 7); /* Block count */ - for (i = 0; len > 0; ++i) { - rtrc(5); - /* Poll until the host buffer can accept data. */ - while (NCR5380_read(DTC_CONTROL_REG) & CSR_HOST_BUF_NOT_RDY) - ++i; - rtrc(3); - memcpy_toio(hostdata->base + DTC_DATA_BUF, src, 128); - src += 128; - len -= 128; - } - rtrc(4); - while (!(NCR5380_read(DTC_CONTROL_REG) & D_CR_ACCESS)) - ++i; - rtrc(6); - /* Wait until the last byte has been sent to the disk */ - while (!(NCR5380_read(TARGET_COMMAND_REG) & TCR_LAST_BYTE_SENT)) - ++i; - rtrc(7); - /* Check for parity error here. fixme. */ - rtrc(0); - return (0); -} - -static int dtc_dma_xfer_len(struct scsi_cmnd *cmd) -{ - int transfersize = cmd->transfersize; - - /* Limit transfers to 32K, for xx400 & xx406 - * pseudoDMA that transfers in 128 bytes blocks. - */ - if (transfersize > 32 * 1024 && cmd->SCp.this_residual && - !(cmd->SCp.this_residual % transfersize)) - transfersize = 32 * 1024; - - return transfersize; -} - -MODULE_LICENSE("GPL"); - -#include "NCR5380.c" - -static int dtc_release(struct Scsi_Host *shost) -{ - struct NCR5380_hostdata *hostdata = shost_priv(shost); - - if (shost->irq != NO_IRQ) - free_irq(shost->irq, shost); - NCR5380_exit(shost); - scsi_unregister(shost); - iounmap(hostdata->base); - return 0; -} - -static struct scsi_host_template driver_template = { - .name = "DTC 3180/3280", - .detect = dtc_detect, - .release = dtc_release, - .proc_name = "dtc3x80", - .info = dtc_info, - .queuecommand = dtc_queue_command, - .eh_abort_handler = dtc_abort, - .eh_bus_reset_handler = dtc_bus_reset, - .bios_param = dtc_biosparam, - .can_queue = 32, - .this_id = 7, - .sg_tablesize = SG_ALL, - .cmd_per_lun = 2, - .use_clustering = DISABLE_CLUSTERING, - .cmd_size = NCR5380_CMD_SIZE, - .max_sectors = 128, -}; -#include "scsi_module.c" diff --git a/drivers/scsi/dtc.h b/drivers/scsi/dtc.h deleted file mode 100644 index fcb0a8ea7bda..000000000000 --- a/drivers/scsi/dtc.h +++ /dev/null @@ -1,42 +0,0 @@ -/* - * DTC controller, taken from T128 driver by... - * Copyright 1993, Drew Eckhardt - * Visionary Computing - * (Unix and Linux consulting and custom programming) - * drew@colorado.edu - * +1 (303) 440-4894 - */ - -#ifndef DTC3280_H -#define DTC3280_H - -#define NCR5380_implementation_fields \ - void __iomem *base - -#define DTC_address(reg) \ - (((struct NCR5380_hostdata *)shost_priv(instance))->base + DTC_5380_OFFSET + reg) - -#define NCR5380_read(reg) (readb(DTC_address(reg))) -#define NCR5380_write(reg, value) (writeb(value, DTC_address(reg))) - -#define NCR5380_dma_xfer_len(instance, cmd, phase) \ - dtc_dma_xfer_len(cmd) -#define NCR5380_dma_recv_setup dtc_pread -#define NCR5380_dma_send_setup dtc_pwrite -#define NCR5380_dma_residual(instance) (0) - -#define NCR5380_intr dtc_intr -#define NCR5380_queue_command dtc_queue_command -#define NCR5380_abort dtc_abort -#define NCR5380_bus_reset dtc_bus_reset -#define NCR5380_info dtc_info - -#define NCR5380_io_delay(x) udelay(x) - -/* 15 12 11 10 - 1001 1100 0000 0000 */ - -#define DTC_IRQS 0x9c00 - - -#endif /* DTC3280_H */ |