+++ /dev/null
-/*
- * This driver adapted from Drew Eckhardt's Trantor T128 driver
- *
- * Copyright 1993, Drew Eckhardt
- * Visionary Computing
- * (Unix and Linux consulting and custom programming)
- * drew@colorado.edu
- * +1 (303) 666-5836
- *
- * ( Based on T128 - DISTRIBUTION RELEASE 3. )
- *
- * Modified to work with the Pro Audio Spectrum/Studio 16
- * by John Weidman.
- *
- *
- * For more information, please consult
- *
- * Media Vision
- * (510) 770-8600
- * (800) 348-7116
- */
-
-/*
- * The card is detected and initialized in one of several ways :
- * 1. Autoprobe (default) - There are many different models of
- * the Pro Audio Spectrum/Studio 16, and I only have one of
- * them, so this may require a little tweaking. An interrupt
- * is triggered to autoprobe for the interrupt line. Note:
- * with the newer model boards, the interrupt is set via
- * software after reset using the default_irq for the
- * current board number.
- *
- * 2. With command line overrides - pas16=port,irq may be
- * used on the LILO command line to override the defaults.
- *
- * 3. With the PAS16_OVERRIDE compile time define. This is
- * specified as an array of address, irq tuples. Ie, for
- * one board at the default 0x388 address, IRQ10, I could say
- * -DPAS16_OVERRIDE={{0x388, 10}}
- * NOTE: Untested.
- *
- * 4. When included as a module, with arguments passed on the command line:
- * pas16_irq=xx the interrupt
- * pas16_addr=xx the port
- * e.g. "modprobe pas16 pas16_addr=0x388 pas16_irq=5"
- *
- * Note that if the override methods are used, place holders must
- * be specified for other boards in the system.
- *
- *
- * Configuration notes :
- * The current driver does not support interrupt sharing with the
- * sound portion of the card. If you use the same irq for the
- * scsi port and sound you will have problems. Either use
- * a different irq for the scsi port or don't use interrupts
- * for the scsi port.
- *
- * If you have problems with your card not being recognized, use
- * the LILO command line override. Try to get it recognized without
- * interrupts. Ie, for a board at the default 0x388 base port,
- * boot: linux pas16=0x388,0
- *
- * NO_IRQ (0) should be specified for no interrupt,
- * IRQ_AUTO (254) to autoprobe for an IRQ line if overridden
- * on the command line.
- */
-
-#include <linux/module.h>
-
-#include <asm/io.h>
-#include <asm/dma.h>
-#include <linux/blkdev.h>
-#include <linux/interrupt.h>
-#include <linux/init.h>
-
-#include <scsi/scsi_host.h>
-#include "pas16.h"
-#include "NCR5380.h"
-
-
-static unsigned short pas16_addr;
-static int pas16_irq;
-
-
-static const int scsi_irq_translate[] =
- { 0, 0, 1, 2, 3, 4, 5, 6, 0, 0, 7, 8, 9, 0, 10, 11 };
-
-/* The default_irqs array contains values used to set the irq into the
- * board via software (as must be done on newer model boards without
- * irq jumpers on the board). The first value in the array will be
- * assigned to logical board 0, the next to board 1, etc.
- */
-static int default_irqs[] __initdata =
- { PAS16_DEFAULT_BOARD_1_IRQ,
- PAS16_DEFAULT_BOARD_2_IRQ,
- PAS16_DEFAULT_BOARD_3_IRQ,
- PAS16_DEFAULT_BOARD_4_IRQ
- };
-
-static struct override {
- unsigned short io_port;
- int irq;
-} overrides
-#ifdef PAS16_OVERRIDE
- [] __initdata = PAS16_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 short io_port;
- int noauto;
-} bases[] __initdata =
- { {PAS16_DEFAULT_BASE_1, 0},
- {PAS16_DEFAULT_BASE_2, 0},
- {PAS16_DEFAULT_BASE_3, 0},
- {PAS16_DEFAULT_BASE_4, 0}
- };
-
-#define NO_BASES ARRAY_SIZE(bases)
-
-static const unsigned short pas16_offset[ 8 ] =
- {
- 0x1c00, /* OUTPUT_DATA_REG */
- 0x1c01, /* INITIATOR_COMMAND_REG */
- 0x1c02, /* MODE_REG */
- 0x1c03, /* TARGET_COMMAND_REG */
- 0x3c00, /* STATUS_REG ro, SELECT_ENABLE_REG wo */
- 0x3c01, /* BUS_AND_STATUS_REG ro, START_DMA_SEND_REG wo */
- 0x3c02, /* INPUT_DATA_REGISTER ro, (N/A on PAS16 ?)
- * START_DMA_TARGET_RECEIVE_REG wo
- */
- 0x3c03, /* RESET_PARITY_INTERRUPT_REG ro,
- * START_DMA_INITIATOR_RECEIVE_REG wo
- */
- };
-
-
-/*
- * Function : enable_board( int board_num, unsigned short port )
- *
- * Purpose : set address in new model board
- *
- * Inputs : board_num - logical board number 0-3, port - base address
- *
- */
-
-static void __init
- enable_board( int board_num, unsigned short port )
-{
- outb( 0xbc + board_num, MASTER_ADDRESS_PTR );
- outb( port >> 2, MASTER_ADDRESS_PTR );
-}
-
-
-
-/*
- * Function : init_board( unsigned short port, int irq )
- *
- * Purpose : Set the board up to handle the SCSI interface
- *
- * Inputs : port - base address of the board,
- * irq - irq to assign to the SCSI port
- * force_irq - set it even if it conflicts with sound driver
- *
- */
-
-static void __init
- init_board( unsigned short io_port, int irq, int force_irq )
-{
- unsigned int tmp;
- unsigned int pas_irq_code;
-
- /* Initialize the SCSI part of the board */
-
- outb( 0x30, io_port + P_TIMEOUT_COUNTER_REG ); /* Timeout counter */
- outb( 0x01, io_port + P_TIMEOUT_STATUS_REG_OFFSET ); /* Reset TC */
- outb( 0x01, io_port + WAIT_STATE ); /* 1 Wait state */
-
- inb(io_port + pas16_offset[RESET_PARITY_INTERRUPT_REG]);
-
- /* Set the SCSI interrupt pointer without mucking up the sound
- * interrupt pointer in the same byte.
- */
- pas_irq_code = ( irq < 16 ) ? scsi_irq_translate[irq] : 0;
- tmp = inb( io_port + IO_CONFIG_3 );
-
- if( (( tmp & 0x0f ) == pas_irq_code) && pas_irq_code > 0
- && !force_irq )
- {
- printk( "pas16: WARNING: Can't use same irq as sound "
- "driver -- interrupts disabled\n" );
- /* Set up the drive parameters, disable 5380 interrupts */
- outb( 0x4d, io_port + SYS_CONFIG_4 );
- }
- else
- {
- tmp = ( tmp & 0x0f ) | ( pas_irq_code << 4 );
- outb( tmp, io_port + IO_CONFIG_3 );
-
- /* Set up the drive parameters and enable 5380 interrupts */
- outb( 0x6d, io_port + SYS_CONFIG_4 );
- }
-}
-
-
-/*
- * Function : pas16_hw_detect( unsigned short board_num )
- *
- * Purpose : determine if a pas16 board is present
- *
- * Inputs : board_num - logical board number ( 0 - 3 )
- *
- * Returns : 0 if board not found, 1 if found.
- */
-
-static int __init
- pas16_hw_detect( unsigned short board_num )
-{
- unsigned char board_rev, tmp;
- unsigned short io_port = bases[ board_num ].io_port;
-
- /* See if we can find a PAS16 board at the address associated
- * with this logical board number.
- */
-
- /* First, attempt to take a newer model board out of reset and
- * give it a base address. This shouldn't affect older boards.
- */
- enable_board( board_num, io_port );
-
- /* Now see if it looks like a PAS16 board */
- board_rev = inb( io_port + PCB_CONFIG );
-
- if( board_rev == 0xff )
- return 0;
-
- tmp = board_rev ^ 0xe0;
-
- outb( tmp, io_port + PCB_CONFIG );
- tmp = inb( io_port + PCB_CONFIG );
- outb( board_rev, io_port + PCB_CONFIG );
-
- if( board_rev != tmp ) /* Not a PAS-16 */
- return 0;
-
- if( ( inb( io_port + OPERATION_MODE_1 ) & 0x03 ) != 0x03 )
- return 0; /* return if no SCSI interface found */
-
- /* Mediavision has some new model boards that return ID bits
- * that indicate a SCSI interface, but they're not (LMS). We'll
- * put in an additional test to try to weed them out.
- */
-
- outb(0x01, io_port + WAIT_STATE); /* 1 Wait state */
- outb(0x20, io_port + pas16_offset[MODE_REG]); /* Is it really SCSI? */
- if (inb(io_port + pas16_offset[MODE_REG]) != 0x20) /* Write to a reg. */
- return 0; /* and try to read */
- outb(0x00, io_port + pas16_offset[MODE_REG]); /* it back. */
- if (inb(io_port + pas16_offset[MODE_REG]) != 0x00)
- return 0;
-
- return 1;
-}
-
-
-#ifndef MODULE
-/*
- * Function : pas16_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 pas16_setup(char *str)
-{
- static int commandline_current;
- int i;
- int ints[10];
-
- get_options(str, ARRAY_SIZE(ints), ints);
- if (ints[0] != 2)
- printk("pas16_setup : usage pas16=io_port,irq\n");
- else
- if (commandline_current < NO_OVERRIDES) {
- overrides[commandline_current].io_port = (unsigned short) ints[1];
- overrides[commandline_current].irq = ints[2];
- for (i = 0; i < NO_BASES; ++i)
- if (bases[i].io_port == (unsigned short) ints[1]) {
- bases[i].noauto = 1;
- break;
- }
- ++commandline_current;
- }
- return 1;
-}
-
-__setup("pas16=", pas16_setup);
-#endif
-
-/*
- * Function : int pas16_detect(struct scsi_host_template * tpnt)
- *
- * Purpose : detects and initializes PAS16 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 pas16_detect(struct scsi_host_template *tpnt)
-{
- static int current_override;
- static unsigned short current_base;
- struct Scsi_Host *instance;
- unsigned short io_port;
- int count;
-
- if (pas16_addr != 0) {
- overrides[0].io_port = pas16_addr;
- /*
- * This is how we avoid seeing more than
- * one host adapter at the same I/O port.
- * Cribbed shamelessly from pas16_setup().
- */
- for (count = 0; count < NO_BASES; ++count)
- if (bases[count].io_port == pas16_addr) {
- bases[count].noauto = 1;
- break;
- }
- }
- if (pas16_irq != 0)
- overrides[0].irq = pas16_irq;
-
- for (count = 0; current_override < NO_OVERRIDES; ++current_override) {
- io_port = 0;
-
- if (overrides[current_override].io_port)
- {
- io_port = overrides[current_override].io_port;
- enable_board( current_override, io_port );
- init_board( io_port, overrides[current_override].irq, 1 );
- }
- else
- for (; !io_port && (current_base < NO_BASES); ++current_base) {
- dprintk(NDEBUG_INIT, "pas16: probing io_port 0x%04x\n",
- (unsigned int)bases[current_base].io_port);
- if ( !bases[current_base].noauto &&
- pas16_hw_detect( current_base ) ){
- io_port = bases[current_base].io_port;
- init_board( io_port, default_irqs[ current_base ], 0 );
- dprintk(NDEBUG_INIT, "pas16: detected board\n");
- }
- }
-
- dprintk(NDEBUG_INIT, "pas16: io_port = 0x%04x\n",
- (unsigned int)io_port);
-
- if (!io_port)
- break;
-
- instance = scsi_register (tpnt, sizeof(struct NCR5380_hostdata));
- if(instance == NULL)
- goto out;
-
- instance->io_port = io_port;
-
- if (NCR5380_init(instance, FLAG_DMA_FIXUP | FLAG_LATE_DMA_SETUP))
- goto out_unregister;
-
- NCR5380_maybe_reset_bus(instance);
-
- if (overrides[current_override].irq != IRQ_AUTO)
- instance->irq = overrides[current_override].irq;
- else
- instance->irq = NCR5380_probe_irq(instance, PAS16_IRQS);
-
- /* Compatibility with documented NCR5380 kernel parameters */
- if (instance->irq == 255)
- instance->irq = NO_IRQ;
-
- if (instance->irq != NO_IRQ)
- if (request_irq(instance->irq, pas16_intr, 0,
- "pas16", instance)) {
- printk("scsi%d : IRQ%d not free, interrupts disabled\n",
- instance->host_no, instance->irq);
- instance->irq = NO_IRQ;
- }
-
- if (instance->irq == NO_IRQ) {
- 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);
- /* Disable 5380 interrupts, leave drive params the same */
- outb( 0x4d, io_port + SYS_CONFIG_4 );
- outb( (inb(io_port + IO_CONFIG_3) & 0x0f), io_port + IO_CONFIG_3 );
- }
-
- dprintk(NDEBUG_INIT, "scsi%d : irq = %d\n",
- instance->host_no, instance->irq);
-
- ++current_override;
- ++count;
- }
- return count;
-
-out_unregister:
- scsi_unregister(instance);
-out:
- return count;
-}
-
-/*
- * Function : int pas16_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 pas16_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; /* I think I have it as /(32*64) */
- if( ip[2] > 1024 ) { /* yes, >, not >= */
- ip[0]=255;
- ip[1]=63;
- ip[2]=size/(63*255);
- if( ip[2] > 1023 ) /* yes >1023... */
- ip[2] = 1023;
- }
-
- return 0;
-}
-
-/*
- * Function : int pas16_pread (struct Scsi_Host *instance,
- * unsigned char *dst, int len)
- *
- * Purpose : Fast 5380 pseudo-dma read function, transfers 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 pas16_pread(struct Scsi_Host *instance,
- unsigned char *dst, int len)
-{
- register unsigned char *d = dst;
- register unsigned short reg = (unsigned short) (instance->io_port +
- P_DATA_REG_OFFSET);
- register int i = len;
- int ii = 0;
-
- while ( !(inb(instance->io_port + P_STATUS_REG_OFFSET) & P_ST_RDY) )
- ++ii;
-
- insb( reg, d, i );
-
- if ( inb(instance->io_port + P_TIMEOUT_STATUS_REG_OFFSET) & P_TS_TIM) {
- outb( P_TS_CT, instance->io_port + P_TIMEOUT_STATUS_REG_OFFSET);
- printk("scsi%d : watchdog timer fired in NCR5380_pread()\n",
- instance->host_no);
- return -1;
- }
- return 0;
-}
-
-/*
- * Function : int pas16_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 pas16_pwrite(struct Scsi_Host *instance,
- unsigned char *src, int len)
-{
- register unsigned char *s = src;
- register unsigned short reg = (instance->io_port + P_DATA_REG_OFFSET);
- register int i = len;
- int ii = 0;
-
- while ( !((inb(instance->io_port + P_STATUS_REG_OFFSET)) & P_ST_RDY) )
- ++ii;
-
- outsb( reg, s, i );
-
- if (inb(instance->io_port + P_TIMEOUT_STATUS_REG_OFFSET) & P_TS_TIM) {
- outb( P_TS_CT, instance->io_port + P_TIMEOUT_STATUS_REG_OFFSET);
- printk("scsi%d : watchdog timer fired in NCR5380_pwrite()\n",
- instance->host_no);
- return -1;
- }
- return 0;
-}
-
-#include "NCR5380.c"
-
-static int pas16_release(struct Scsi_Host *shost)
-{
- if (shost->irq != NO_IRQ)
- free_irq(shost->irq, shost);
- NCR5380_exit(shost);
- scsi_unregister(shost);
- return 0;
-}
-
-static struct scsi_host_template driver_template = {
- .name = "Pro Audio Spectrum-16 SCSI",
- .detect = pas16_detect,
- .release = pas16_release,
- .proc_name = "pas16",
- .info = pas16_info,
- .queuecommand = pas16_queue_command,
- .eh_abort_handler = pas16_abort,
- .eh_bus_reset_handler = pas16_bus_reset,
- .bios_param = pas16_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"
-
-#ifdef MODULE
-module_param(pas16_addr, ushort, 0);
-module_param(pas16_irq, int, 0);
-#endif
-MODULE_LICENSE("GPL");
+++ /dev/null
-/*
- * This driver adapted from Drew Eckhardt's Trantor T128 driver
- *
- * Copyright 1993, Drew Eckhardt
- * Visionary Computing
- * (Unix and Linux consulting and custom programming)
- * drew@colorado.edu
- * +1 (303) 666-5836
- *
- * ( Based on T128 - DISTRIBUTION RELEASE 3. )
- *
- * Modified to work with the Pro Audio Spectrum/Studio 16
- * by John Weidman.
- *
- *
- * For more information, please consult
- *
- * Media Vision
- * (510) 770-8600
- * (800) 348-7116
- */
-
-
-#ifndef PAS16_H
-#define PAS16_H
-
-#define PAS16_DEFAULT_BASE_1 0x388
-#define PAS16_DEFAULT_BASE_2 0x384
-#define PAS16_DEFAULT_BASE_3 0x38c
-#define PAS16_DEFAULT_BASE_4 0x288
-
-#define PAS16_DEFAULT_BOARD_1_IRQ 10
-#define PAS16_DEFAULT_BOARD_2_IRQ 12
-#define PAS16_DEFAULT_BOARD_3_IRQ 14
-#define PAS16_DEFAULT_BOARD_4_IRQ 15
-
-
-/*
- * The Pro Audio Spectrum boards are I/O mapped. They use a Zilog 5380
- * SCSI controller, which is the equivalent of NCR's 5380. "Pseudo-DMA"
- * architecture is used, where a PAL drives the DMA signals on the 5380
- * allowing fast, blind transfers with proper handshaking.
- */
-
-
-/* The Time-out Counter register is used to safe-guard against a stuck
- * bus (in the case of RDY driven handshake) or a stuck byte (if 16-Bit
- * DMA conversion is used). The counter uses a 28.224MHz clock
- * divided by 14 as its clock source. In the case of a stuck byte in
- * the holding register, an interrupt is generated (and mixed with the
- * one with the drive) using the CD-ROM interrupt pointer.
- */
-
-#define P_TIMEOUT_COUNTER_REG 0x4000
-#define P_TC_DISABLE 0x80 /* Set to 0 to enable timeout int. */
- /* Bits D6-D0 contain timeout count */
-
-
-#define P_TIMEOUT_STATUS_REG_OFFSET 0x4001
-#define P_TS_TIM 0x80 /* check timeout status */
- /* Bits D6-D4 N/U */
-#define P_TS_ARM_DRQ_INT 0x08 /* Arm DRQ Int. When set high,
- * the next rising edge will
- * cause a CD-ROM interrupt.
- * When set low, the interrupt
- * will be cleared. There is
- * no status available for
- * this interrupt.
- */
-#define P_TS_ENABLE_TO_ERR_INTERRUPT /* Enable timeout error int. */
-#define P_TS_ENABLE_WAIT /* Enable Wait */
-
-#define P_TS_CT 0x01 /* clear timeout. Note: writing
- * to this register clears the
- * timeout error int. or status
- */
-
-
-/*
- * The data register reads/writes to/from the 5380 in pseudo-DMA mode
- */
-
-#define P_DATA_REG_OFFSET 0x5c00 /* rw */
-
-#define P_STATUS_REG_OFFSET 0x5c01 /* ro */
-#define P_ST_RDY 0x80 /* 5380 DDRQ Status */
-
-#define P_IRQ_STATUS 0x5c03
-#define P_IS_IRQ 0x80 /* DIRQ status */
-
-#define PCB_CONFIG 0x803
-#define MASTER_ADDRESS_PTR 0x9a01 /* Fixed position - no relo */
-#define SYS_CONFIG_4 0x8003
-#define WAIT_STATE 0xbc00
-#define OPERATION_MODE_1 0xec03
-#define IO_CONFIG_3 0xf002
-
-#define NCR5380_implementation_fields /* none */
-
-#define PAS16_io_port(reg) (instance->io_port + pas16_offset[(reg)])
-
-#define NCR5380_read(reg) ( inb(PAS16_io_port(reg)) )
-#define NCR5380_write(reg, value) ( outb((value),PAS16_io_port(reg)) )
-
-#define NCR5380_dma_xfer_len(instance, cmd, phase) (cmd->transfersize)
-#define NCR5380_dma_recv_setup pas16_pread
-#define NCR5380_dma_send_setup pas16_pwrite
-#define NCR5380_dma_residual(instance) (0)
-
-#define NCR5380_intr pas16_intr
-#define NCR5380_queue_command pas16_queue_command
-#define NCR5380_abort pas16_abort
-#define NCR5380_bus_reset pas16_bus_reset
-#define NCR5380_info pas16_info
-
-/* 15 14 12 10 7 5 3
- 1101 0100 1010 1000 */
-
-#define PAS16_IRQS 0xd4a8
-
-#endif /* PAS16_H */
projects / cascardo / linux.git / commitdiff