+++ /dev/null
-/*
- * sym53c416.c
- * Low-level SCSI driver for sym53c416 chip.
- * Copyright (C) 1998 Lieven Willems (lw_linux@hotmail.com)
- *
- * Changes :
- *
- * Marcelo Tosatti <marcelo@conectiva.com.br> : Added io_request_lock locking
- * Alan Cox <alan@lxorguk.ukuu.org.uk> : Cleaned up code formatting
- * Fixed an irq locking bug
- * Added ISAPnP support
- * Bjoern A. Zeeb <bzeeb@zabbadoz.net> : Initial irq locking updates
- * Added another card with ISAPnP support
- *
- * LILO command line usage: sym53c416=<PORTBASE>[,<IRQ>]
- *
- * This program is free software; you can redistribute it and/or modify it
- * under the terms of the GNU General Public License as published by the
- * Free Software Foundation; either version 2, or (at your option) any
- * later version.
- *
- * This program is distributed in the hope that it will be useful, but
- * WITHOUT ANY WARRANTY; without even the implied warranty of
- * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
- * General Public License for more details.
- *
- */
-
-#include <linux/module.h>
-#include <linux/kernel.h>
-#include <linux/types.h>
-#include <linux/init.h>
-#include <linux/string.h>
-#include <linux/ioport.h>
-#include <linux/interrupt.h>
-#include <linux/delay.h>
-#include <linux/proc_fs.h>
-#include <linux/spinlock.h>
-#include <asm/dma.h>
-#include <asm/io.h>
-#include <linux/blkdev.h>
-#include <linux/isapnp.h>
-#include "scsi.h"
-#include <scsi/scsi_host.h>
-#include "sym53c416.h"
-
-#define VERSION_STRING "Version 1.0.0-ac"
-
-#define TC_LOW 0x00 /* Transfer counter low */
-#define TC_MID 0x01 /* Transfer counter mid */
-#define SCSI_FIFO 0x02 /* SCSI FIFO register */
-#define COMMAND_REG 0x03 /* Command Register */
-#define STATUS_REG 0x04 /* Status Register (READ) */
-#define DEST_BUS_ID 0x04 /* Destination Bus ID (WRITE) */
-#define INT_REG 0x05 /* Interrupt Register (READ) */
-#define TOM 0x05 /* Time out multiplier (WRITE) */
-#define STP 0x06 /* Synchronous Transfer period */
-#define SYNC_OFFSET 0x07 /* Synchronous Offset */
-#define CONF_REG_1 0x08 /* Configuration register 1 */
-#define CONF_REG_2 0x0B /* Configuration register 2 */
-#define CONF_REG_3 0x0C /* Configuration register 3 */
-#define CONF_REG_4 0x0D /* Configuration register 4 */
-#define TC_HIGH 0x0E /* Transfer counter high */
-#define PIO_FIFO_1 0x10 /* PIO FIFO register 1 */
-#define PIO_FIFO_2 0x11 /* PIO FIFO register 2 */
-#define PIO_FIFO_3 0x12 /* PIO FIFO register 3 */
-#define PIO_FIFO_4 0x13 /* PIO FIFO register 4 */
-#define PIO_FIFO_CNT 0x14 /* PIO FIFO count */
-#define PIO_INT_REG 0x15 /* PIO interrupt register */
-#define CONF_REG_5 0x16 /* Configuration register 5 */
-#define FEATURE_EN 0x1D /* Feature Enable register */
-
-/* Configuration register 1 entries: */
-/* Bits 2-0: SCSI ID of host adapter */
-#define SCM 0x80 /* Slow Cable Mode */
-#define SRID 0x40 /* SCSI Reset Interrupt Disable */
-#define PTM 0x20 /* Parity Test Mode */
-#define EPC 0x10 /* Enable Parity Checking */
-#define CTME 0x08 /* Special Test Mode */
-
-/* Configuration register 2 entries: */
-#define FE 0x40 /* Features Enable */
-#define SCSI2 0x08 /* SCSI 2 Enable */
-#define TBPA 0x04 /* Target Bad Parity Abort */
-
-/* Configuration register 3 entries: */
-#define IDMRC 0x80 /* ID Message Reserved Check */
-#define QTE 0x40 /* Queue Tag Enable */
-#define CDB10 0x20 /* Command Descriptor Block 10 */
-#define FSCSI 0x10 /* FastSCSI */
-#define FCLK 0x08 /* FastClock */
-
-/* Configuration register 4 entries: */
-#define RBS 0x08 /* Register bank select */
-#define EAN 0x04 /* Enable Active Negotiation */
-
-/* Configuration register 5 entries: */
-#define LPSR 0x80 /* Lower Power SCSI Reset */
-#define IE 0x20 /* Interrupt Enable */
-#define LPM 0x02 /* Low Power Mode */
-#define WSE0 0x01 /* 0WS Enable */
-
-/* Interrupt register entries: */
-#define SRST 0x80 /* SCSI Reset */
-#define ILCMD 0x40 /* Illegal Command */
-#define DIS 0x20 /* Disconnect */
-#define BS 0x10 /* Bus Service */
-#define FC 0x08 /* Function Complete */
-#define RESEL 0x04 /* Reselected */
-#define SI 0x03 /* Selection Interrupt */
-
-/* Status Register Entries: */
-#define SCI 0x80 /* SCSI Core Int */
-#define GE 0x40 /* Gross Error */
-#define PE 0x20 /* Parity Error */
-#define TC 0x10 /* Terminal Count */
-#define VGC 0x08 /* Valid Group Code */
-#define PHBITS 0x07 /* Phase bits */
-
-/* PIO Interrupt Register Entries: */
-#define SCI 0x80 /* SCSI Core Int */
-#define PFI 0x40 /* PIO FIFO Interrupt */
-#define FULL 0x20 /* PIO FIFO Full */
-#define EMPTY 0x10 /* PIO FIFO Empty */
-#define CE 0x08 /* Collision Error */
-#define OUE 0x04 /* Overflow / Underflow error */
-#define FIE 0x02 /* Full Interrupt Enable */
-#define EIE 0x01 /* Empty Interrupt Enable */
-
-/* SYM53C416 SCSI phases (lower 3 bits of SYM53C416_STATUS_REG) */
-#define PHASE_DATA_OUT 0x00
-#define PHASE_DATA_IN 0x01
-#define PHASE_COMMAND 0x02
-#define PHASE_STATUS 0x03
-#define PHASE_RESERVED_1 0x04
-#define PHASE_RESERVED_2 0x05
-#define PHASE_MESSAGE_OUT 0x06
-#define PHASE_MESSAGE_IN 0x07
-
-/* SYM53C416 core commands */
-#define NOOP 0x00
-#define FLUSH_FIFO 0x01
-#define RESET_CHIP 0x02
-#define RESET_SCSI_BUS 0x03
-#define DISABLE_SEL_RESEL 0x45
-#define RESEL_SEQ 0x40
-#define SEL_WITHOUT_ATN_SEQ 0x41
-#define SEL_WITH_ATN_SEQ 0x42
-#define SEL_WITH_ATN_AND_STOP_SEQ 0x43
-#define ENABLE_SEL_RESEL 0x44
-#define SEL_WITH_ATN3_SEQ 0x46
-#define RESEL3_SEQ 0x47
-#define SND_MSG 0x20
-#define SND_STAT 0x21
-#define SND_DATA 0x22
-#define DISCONNECT_SEQ 0x23
-#define TERMINATE_SEQ 0x24
-#define TARGET_COMM_COMPLETE_SEQ 0x25
-#define DISCONN 0x27
-#define RECV_MSG_SEQ 0x28
-#define RECV_CMD 0x29
-#define RECV_DATA 0x2A
-#define RECV_CMD_SEQ 0x2B
-#define TARGET_ABORT_PIO 0x04
-#define TRANSFER_INFORMATION 0x10
-#define INIT_COMM_COMPLETE_SEQ 0x11
-#define MSG_ACCEPTED 0x12
-#define TRANSFER_PAD 0x18
-#define SET_ATN 0x1A
-#define RESET_ATN 0x1B
-#define ILLEGAL 0xFF
-
-#define PIO_MODE 0x80
-
-#define IO_RANGE 0x20 /* 0x00 - 0x1F */
-#define ID "sym53c416" /* Attention: copied to the sym53c416.h */
-#define PIO_SIZE 128 /* Size of PIO fifo is 128 bytes */
-
-#define READ_TIMEOUT 150
-#define WRITE_TIMEOUT 150
-
-#ifdef MODULE
-
-#define sym53c416_base sym53c416
-#define sym53c416_base_1 sym53c416_1
-#define sym53c416_base_2 sym53c416_2
-#define sym53c416_base_3 sym53c416_3
-
-static unsigned int sym53c416_base[2];
-static unsigned int sym53c416_base_1[2];
-static unsigned int sym53c416_base_2[2];
-static unsigned int sym53c416_base_3[2];
-
-#endif
-
-#define MAXHOSTS 4
-
-#define SG_ADDRESS(buffer) ((char *) sg_virt((buffer)))
-
-enum phases
-{
- idle,
- data_out,
- data_in,
- command_ph,
- status_ph,
- message_out,
- message_in
-};
-
-typedef struct
-{
- int base;
- int irq;
- int scsi_id;
-} host;
-
-static host hosts[MAXHOSTS] = {
- {0, 0, SYM53C416_SCSI_ID},
- {0, 0, SYM53C416_SCSI_ID},
- {0, 0, SYM53C416_SCSI_ID},
- {0, 0, SYM53C416_SCSI_ID}
- };
-
-static int host_index = 0;
-static char info[120];
-static Scsi_Cmnd *current_command = NULL;
-static int fastpio = 1;
-
-static int probeaddrs[] = {0x200, 0x220, 0x240, 0};
-
-static void sym53c416_set_transfer_counter(int base, unsigned int len)
-{
- /* Program Transfer Counter */
- outb(len & 0x0000FF, base + TC_LOW);
- outb((len & 0x00FF00) >> 8, base + TC_MID);
- outb((len & 0xFF0000) >> 16, base + TC_HIGH);
-}
-
-static DEFINE_SPINLOCK(sym53c416_lock);
-
-/* Returns the number of bytes read */
-static __inline__ unsigned int sym53c416_read(int base, unsigned char *buffer, unsigned int len)
-{
- unsigned int orig_len = len;
- unsigned long flags = 0;
- unsigned int bytes_left;
- unsigned long i;
- int timeout = READ_TIMEOUT;
-
- /* Do transfer */
- spin_lock_irqsave(&sym53c416_lock, flags);
- while(len && timeout)
- {
- bytes_left = inb(base + PIO_FIFO_CNT); /* Number of bytes in the PIO FIFO */
- if(fastpio && bytes_left > 3)
- {
- insl(base + PIO_FIFO_1, buffer, bytes_left >> 2);
- buffer += bytes_left & 0xFC;
- len -= bytes_left & 0xFC;
- }
- else if(bytes_left > 0)
- {
- len -= bytes_left;
- for(; bytes_left > 0; bytes_left--)
- *(buffer++) = inb(base + PIO_FIFO_1);
- }
- else
- {
- i = jiffies + timeout;
- spin_unlock_irqrestore(&sym53c416_lock, flags);
- while(time_before(jiffies, i) && (inb(base + PIO_INT_REG) & EMPTY) && timeout)
- if(inb(base + PIO_INT_REG) & SCI)
- timeout = 0;
- spin_lock_irqsave(&sym53c416_lock, flags);
- if(inb(base + PIO_INT_REG) & EMPTY)
- timeout = 0;
- }
- }
- spin_unlock_irqrestore(&sym53c416_lock, flags);
- return orig_len - len;
-}
-
-/* Returns the number of bytes written */
-static __inline__ unsigned int sym53c416_write(int base, unsigned char *buffer, unsigned int len)
-{
- unsigned int orig_len = len;
- unsigned long flags = 0;
- unsigned int bufferfree;
- unsigned long i;
- unsigned int timeout = WRITE_TIMEOUT;
-
- /* Do transfer */
- spin_lock_irqsave(&sym53c416_lock, flags);
- while(len && timeout)
- {
- bufferfree = PIO_SIZE - inb(base + PIO_FIFO_CNT);
- if(bufferfree > len)
- bufferfree = len;
- if(fastpio && bufferfree > 3)
- {
- outsl(base + PIO_FIFO_1, buffer, bufferfree >> 2);
- buffer += bufferfree & 0xFC;
- len -= bufferfree & 0xFC;
- }
- else if(bufferfree > 0)
- {
- len -= bufferfree;
- for(; bufferfree > 0; bufferfree--)
- outb(*(buffer++), base + PIO_FIFO_1);
- }
- else
- {
- i = jiffies + timeout;
- spin_unlock_irqrestore(&sym53c416_lock, flags);
- while(time_before(jiffies, i) && (inb(base + PIO_INT_REG) & FULL) && timeout)
- ;
- spin_lock_irqsave(&sym53c416_lock, flags);
- if(inb(base + PIO_INT_REG) & FULL)
- timeout = 0;
- }
- }
- spin_unlock_irqrestore(&sym53c416_lock, flags);
- return orig_len - len;
-}
-
-static irqreturn_t sym53c416_intr_handle(int irq, void *dev_id)
-{
- struct Scsi_Host *dev = dev_id;
- int base = dev->io_port;
- int i;
- unsigned long flags = 0;
- unsigned char status_reg, pio_int_reg, int_reg;
- struct scatterlist *sg;
- unsigned int tot_trans = 0;
-
- spin_lock_irqsave(dev->host_lock,flags);
- status_reg = inb(base + STATUS_REG);
- pio_int_reg = inb(base + PIO_INT_REG);
- int_reg = inb(base + INT_REG);
- spin_unlock_irqrestore(dev->host_lock, flags);
-
- /* First, we handle error conditions */
- if(int_reg & SCI) /* SCSI Reset */
- {
- printk(KERN_DEBUG "sym53c416: Reset received\n");
- current_command->SCp.phase = idle;
- current_command->result = DID_RESET << 16;
- spin_lock_irqsave(dev->host_lock, flags);
- current_command->scsi_done(current_command);
- spin_unlock_irqrestore(dev->host_lock, flags);
- goto out;
- }
- if(int_reg & ILCMD) /* Illegal Command */
- {
- printk(KERN_WARNING "sym53c416: Illegal Command: 0x%02x.\n", inb(base + COMMAND_REG));
- current_command->SCp.phase = idle;
- current_command->result = DID_ERROR << 16;
- spin_lock_irqsave(dev->host_lock, flags);
- current_command->scsi_done(current_command);
- spin_unlock_irqrestore(dev->host_lock, flags);
- goto out;
- }
- if(status_reg & GE) /* Gross Error */
- {
- printk(KERN_WARNING "sym53c416: Controller reports gross error.\n");
- current_command->SCp.phase = idle;
- current_command->result = DID_ERROR << 16;
- spin_lock_irqsave(dev->host_lock, flags);
- current_command->scsi_done(current_command);
- spin_unlock_irqrestore(dev->host_lock, flags);
- goto out;
- }
- if(status_reg & PE) /* Parity Error */
- {
- printk(KERN_WARNING "sym53c416:SCSI parity error.\n");
- current_command->SCp.phase = idle;
- current_command->result = DID_PARITY << 16;
- spin_lock_irqsave(dev->host_lock, flags);
- current_command->scsi_done(current_command);
- spin_unlock_irqrestore(dev->host_lock, flags);
- goto out;
- }
- if(pio_int_reg & (CE | OUE))
- {
- printk(KERN_WARNING "sym53c416: PIO interrupt error.\n");
- current_command->SCp.phase = idle;
- current_command->result = DID_ERROR << 16;
- spin_lock_irqsave(dev->host_lock, flags);
- current_command->scsi_done(current_command);
- spin_unlock_irqrestore(dev->host_lock, flags);
- goto out;
- }
- if(int_reg & DIS) /* Disconnect */
- {
- if(current_command->SCp.phase != message_in)
- current_command->result = DID_NO_CONNECT << 16;
- else
- current_command->result = (current_command->SCp.Status & 0xFF) | ((current_command->SCp.Message & 0xFF) << 8) | (DID_OK << 16);
- current_command->SCp.phase = idle;
- spin_lock_irqsave(dev->host_lock, flags);
- current_command->scsi_done(current_command);
- spin_unlock_irqrestore(dev->host_lock, flags);
- goto out;
- }
- /* Now we handle SCSI phases */
-
- switch(status_reg & PHBITS) /* Filter SCSI phase out of status reg */
- {
- case PHASE_DATA_OUT:
- {
- if(int_reg & BS)
- {
- current_command->SCp.phase = data_out;
- outb(FLUSH_FIFO, base + COMMAND_REG);
- sym53c416_set_transfer_counter(base,
- scsi_bufflen(current_command));
- outb(TRANSFER_INFORMATION | PIO_MODE, base + COMMAND_REG);
-
- scsi_for_each_sg(current_command,
- sg, scsi_sg_count(current_command), i) {
- tot_trans += sym53c416_write(base,
- SG_ADDRESS(sg),
- sg->length);
- }
- if(tot_trans < current_command->underflow)
- printk(KERN_WARNING "sym53c416: Underflow, wrote %d bytes, request for %d bytes.\n", tot_trans, current_command->underflow);
- }
- break;
- }
-
- case PHASE_DATA_IN:
- {
- if(int_reg & BS)
- {
- current_command->SCp.phase = data_in;
- outb(FLUSH_FIFO, base + COMMAND_REG);
- sym53c416_set_transfer_counter(base,
- scsi_bufflen(current_command));
-
- outb(TRANSFER_INFORMATION | PIO_MODE, base + COMMAND_REG);
-
- scsi_for_each_sg(current_command,
- sg, scsi_sg_count(current_command), i) {
- tot_trans += sym53c416_read(base,
- SG_ADDRESS(sg),
- sg->length);
- }
- if(tot_trans < current_command->underflow)
- printk(KERN_WARNING "sym53c416: Underflow, read %d bytes, request for %d bytes.\n", tot_trans, current_command->underflow);
- }
- break;
- }
-
- case PHASE_COMMAND:
- {
- current_command->SCp.phase = command_ph;
- printk(KERN_ERR "sym53c416: Unknown interrupt in command phase.\n");
- break;
- }
-
- case PHASE_STATUS:
- {
- current_command->SCp.phase = status_ph;
- outb(FLUSH_FIFO, base + COMMAND_REG);
- outb(INIT_COMM_COMPLETE_SEQ, base + COMMAND_REG);
- break;
- }
-
- case PHASE_RESERVED_1:
- case PHASE_RESERVED_2:
- {
- printk(KERN_ERR "sym53c416: Reserved phase occurred.\n");
- break;
- }
-
- case PHASE_MESSAGE_OUT:
- {
- current_command->SCp.phase = message_out;
- outb(SET_ATN, base + COMMAND_REG);
- outb(MSG_ACCEPTED, base + COMMAND_REG);
- break;
- }
-
- case PHASE_MESSAGE_IN:
- {
- current_command->SCp.phase = message_in;
- current_command->SCp.Status = inb(base + SCSI_FIFO);
- current_command->SCp.Message = inb(base + SCSI_FIFO);
- if(current_command->SCp.Message == SAVE_POINTERS || current_command->SCp.Message == DISCONNECT)
- outb(SET_ATN, base + COMMAND_REG);
- outb(MSG_ACCEPTED, base + COMMAND_REG);
- break;
- }
- }
-out:
- return IRQ_HANDLED;
-}
-
-static void sym53c416_init(int base, int scsi_id)
-{
- outb(RESET_CHIP, base + COMMAND_REG);
- outb(NOOP, base + COMMAND_REG);
- outb(0x99, base + TOM); /* Time out of 250 ms */
- outb(0x05, base + STP);
- outb(0x00, base + SYNC_OFFSET);
- outb(EPC | scsi_id, base + CONF_REG_1);
- outb(FE | SCSI2 | TBPA, base + CONF_REG_2);
- outb(IDMRC | QTE | CDB10 | FSCSI | FCLK, base + CONF_REG_3);
- outb(0x83 | EAN, base + CONF_REG_4);
- outb(IE | WSE0, base + CONF_REG_5);
- outb(0, base + FEATURE_EN);
-}
-
-static int sym53c416_probeirq(int base, int scsi_id)
-{
- int irq, irqs;
- unsigned long i;
-
- /* Clear interrupt register */
- inb(base + INT_REG);
- /* Start probing for irq's */
- irqs = probe_irq_on();
- /* Reinit chip */
- sym53c416_init(base, scsi_id);
- /* Cause interrupt */
- outb(NOOP, base + COMMAND_REG);
- outb(ILLEGAL, base + COMMAND_REG);
- outb(0x07, base + DEST_BUS_ID);
- outb(0x00, base + DEST_BUS_ID);
- /* Wait for interrupt to occur */
- i = jiffies + 20;
- while(time_before(jiffies, i) && !(inb(base + STATUS_REG) & SCI))
- barrier();
- if(time_before_eq(i, jiffies)) /* timed out */
- return 0;
- /* Get occurred irq */
- irq = probe_irq_off(irqs);
- sym53c416_init(base, scsi_id);
- return irq;
-}
-
-/* Setup: sym53c416=base,irq */
-void sym53c416_setup(char *str, int *ints)
-{
- int i;
-
- if(host_index >= MAXHOSTS)
- {
- printk(KERN_WARNING "sym53c416: Too many hosts defined\n");
- return;
- }
- if(ints[0] < 1 || ints[0] > 2)
- {
- printk(KERN_ERR "sym53c416: Wrong number of parameters:\n");
- printk(KERN_ERR "sym53c416: usage: sym53c416=<base>[,<irq>]\n");
- return;
- }
- for(i = 0; i < host_index && i >= 0; i++)
- if(hosts[i].base == ints[1])
- i = -2;
- if(i >= 0)
- {
- hosts[host_index].base = ints[1];
- hosts[host_index].irq = (ints[0] == 2)? ints[2] : 0;
- host_index++;
- }
-}
-
-static int sym53c416_test(int base)
-{
- outb(RESET_CHIP, base + COMMAND_REG);
- outb(NOOP, base + COMMAND_REG);
- if(inb(base + COMMAND_REG) != NOOP)
- return 0;
- if(!inb(base + TC_HIGH) || inb(base + TC_HIGH) == 0xFF)
- return 0;
- if((inb(base + PIO_INT_REG) & (FULL | EMPTY | CE | OUE | FIE | EIE)) != EMPTY)
- return 0;
- return 1;
-}
-
-
-static struct isapnp_device_id id_table[] = {
- { ISAPNP_ANY_ID, ISAPNP_ANY_ID,
- ISAPNP_VENDOR('S','L','I'), ISAPNP_FUNCTION(0x4161), 0 },
- { ISAPNP_ANY_ID, ISAPNP_ANY_ID,
- ISAPNP_VENDOR('S','L','I'), ISAPNP_FUNCTION(0x4163), 0 },
- { ISAPNP_DEVICE_SINGLE_END }
-};
-
-MODULE_DEVICE_TABLE(isapnp, id_table);
-
-static void sym53c416_probe(void)
-{
- int *base = probeaddrs;
- int ints[2];
-
- ints[0] = 1;
- for(; *base; base++) {
- if (request_region(*base, IO_RANGE, ID)) {
- if (sym53c416_test(*base)) {
- ints[1] = *base;
- sym53c416_setup(NULL, ints);
- }
- release_region(*base, IO_RANGE);
- }
- }
-}
-
-int sym53c416_detect(struct scsi_host_template *tpnt)
-{
- unsigned long flags;
- struct Scsi_Host * shpnt = NULL;
- int i;
- int count;
- struct pnp_dev *idev = NULL;
-
-#ifdef MODULE
- int ints[3];
-
- ints[0] = 2;
- if(sym53c416_base[0])
- {
- ints[1] = sym53c416_base[0];
- ints[2] = sym53c416_base[1];
- sym53c416_setup(NULL, ints);
- }
- if(sym53c416_base_1[0])
- {
- ints[1] = sym53c416_base_1[0];
- ints[2] = sym53c416_base_1[1];
- sym53c416_setup(NULL, ints);
- }
- if(sym53c416_base_2[0])
- {
- ints[1] = sym53c416_base_2[0];
- ints[2] = sym53c416_base_2[1];
- sym53c416_setup(NULL, ints);
- }
- if(sym53c416_base_3[0])
- {
- ints[1] = sym53c416_base_3[0];
- ints[2] = sym53c416_base_3[1];
- sym53c416_setup(NULL, ints);
- }
-#endif
- printk(KERN_INFO "sym53c416.c: %s\n", VERSION_STRING);
-
- for (i=0; id_table[i].vendor != 0; i++) {
- while((idev=pnp_find_dev(NULL, id_table[i].vendor,
- id_table[i].function, idev))!=NULL)
- {
- int i[3];
-
- if(pnp_device_attach(idev)<0)
- {
- printk(KERN_WARNING "sym53c416: unable to attach PnP device.\n");
- continue;
- }
- if(pnp_activate_dev(idev) < 0)
- {
- printk(KERN_WARNING "sym53c416: unable to activate PnP device.\n");
- pnp_device_detach(idev);
- continue;
-
- }
-
- i[0] = 2;
- i[1] = pnp_port_start(idev, 0);
- i[2] = pnp_irq(idev, 0);
-
- printk(KERN_INFO "sym53c416: ISAPnP card found and configured at 0x%X, IRQ %d.\n",
- i[1], i[2]);
- sym53c416_setup(NULL, i);
- }
- }
- sym53c416_probe();
-
- /* Now we register and set up each host adapter found... */
- for(count = 0, i = 0; i < host_index; i++) {
- if (!request_region(hosts[i].base, IO_RANGE, ID))
- continue;
- if (!sym53c416_test(hosts[i].base)) {
- printk(KERN_WARNING "No sym53c416 found at address 0x%03x\n", hosts[i].base);
- goto fail_release_region;
- }
-
- /* We don't have an irq yet, so we should probe for one */
- if (!hosts[i].irq)
- hosts[i].irq = sym53c416_probeirq(hosts[i].base, hosts[i].scsi_id);
- if (!hosts[i].irq)
- goto fail_release_region;
-
- shpnt = scsi_register(tpnt, 0);
- if (!shpnt)
- goto fail_release_region;
- /* Request for specified IRQ */
- if (request_irq(hosts[i].irq, sym53c416_intr_handle, 0, ID, shpnt))
- goto fail_free_host;
-
- spin_lock_irqsave(&sym53c416_lock, flags);
- shpnt->unique_id = hosts[i].base;
- shpnt->io_port = hosts[i].base;
- shpnt->n_io_port = IO_RANGE;
- shpnt->irq = hosts[i].irq;
- shpnt->this_id = hosts[i].scsi_id;
- sym53c416_init(hosts[i].base, hosts[i].scsi_id);
- count++;
- spin_unlock_irqrestore(&sym53c416_lock, flags);
- continue;
-
- fail_free_host:
- scsi_unregister(shpnt);
- fail_release_region:
- release_region(hosts[i].base, IO_RANGE);
- }
- return count;
-}
-
-const char *sym53c416_info(struct Scsi_Host *SChost)
-{
- int i;
- int base = SChost->io_port;
- int irq = SChost->irq;
- int scsi_id = 0;
- int rev = inb(base + TC_HIGH);
-
- for(i = 0; i < host_index; i++)
- if(hosts[i].base == base)
- scsi_id = hosts[i].scsi_id;
- sprintf(info, "Symbios Logic 53c416 (rev. %d) at 0x%03x, irq %d, SCSI-ID %d, %s pio", rev, base, irq, scsi_id, (fastpio)? "fast" : "slow");
- return info;
-}
-
-static int sym53c416_queuecommand_lck(Scsi_Cmnd *SCpnt, void (*done)(Scsi_Cmnd *))
-{
- int base;
- unsigned long flags = 0;
- int i;
-
- /* Store base register as we can have more than one controller in the system */
- base = SCpnt->device->host->io_port;
- current_command = SCpnt; /* set current command */
- current_command->scsi_done = done; /* set ptr to done function */
- current_command->SCp.phase = command_ph; /* currect phase is the command phase */
- current_command->SCp.Status = 0;
- current_command->SCp.Message = 0;
-
- spin_lock_irqsave(&sym53c416_lock, flags);
- outb(scmd_id(SCpnt), base + DEST_BUS_ID); /* Set scsi id target */
- outb(FLUSH_FIFO, base + COMMAND_REG); /* Flush SCSI and PIO FIFO's */
- /* Write SCSI command into the SCSI fifo */
- for(i = 0; i < SCpnt->cmd_len; i++)
- outb(SCpnt->cmnd[i], base + SCSI_FIFO);
- /* Start selection sequence */
- outb(SEL_WITHOUT_ATN_SEQ, base + COMMAND_REG);
- /* Now an interrupt will be generated which we will catch in out interrupt routine */
- spin_unlock_irqrestore(&sym53c416_lock, flags);
- return 0;
-}
-
-DEF_SCSI_QCMD(sym53c416_queuecommand)
-
-static int sym53c416_host_reset(Scsi_Cmnd *SCpnt)
-{
- int base;
- int scsi_id = -1;
- int i;
- unsigned long flags;
-
- spin_lock_irqsave(&sym53c416_lock, flags);
-
- /* printk("sym53c416_reset\n"); */
- base = SCpnt->device->host->io_port;
- /* search scsi_id - fixme, we shouldn't need to iterate for this! */
- for(i = 0; i < host_index && scsi_id == -1; i++)
- if(hosts[i].base == base)
- scsi_id = hosts[i].scsi_id;
- outb(RESET_CHIP, base + COMMAND_REG);
- outb(NOOP | PIO_MODE, base + COMMAND_REG);
- outb(RESET_SCSI_BUS, base + COMMAND_REG);
- sym53c416_init(base, scsi_id);
-
- spin_unlock_irqrestore(&sym53c416_lock, flags);
- return SUCCESS;
-}
-
-static int sym53c416_release(struct Scsi_Host *shost)
-{
- if (shost->irq)
- free_irq(shost->irq, shost);
- if (shost->io_port && shost->n_io_port)
- release_region(shost->io_port, shost->n_io_port);
- return 0;
-}
-
-static int sym53c416_bios_param(struct scsi_device *sdev,
- struct block_device *dev,
- sector_t capacity, int *ip)
-{
- int size;
-
- size = capacity;
- ip[0] = 64; /* heads */
- ip[1] = 32; /* sectors */
- if((ip[2] = size >> 11) > 1024) /* cylinders, test for big disk */
- {
- ip[0] = 255; /* heads */
- ip[1] = 63; /* sectors */
- ip[2] = size / (255 * 63); /* cylinders */
- }
- return 0;
-}
-
-/* Loadable module support */
-#ifdef MODULE
-
-MODULE_AUTHOR("Lieven Willems");
-MODULE_LICENSE("GPL");
-
-module_param_array(sym53c416, uint, NULL, 0);
-module_param_array(sym53c416_1, uint, NULL, 0);
-module_param_array(sym53c416_2, uint, NULL, 0);
-module_param_array(sym53c416_3, uint, NULL, 0);
-
-#endif
-
-static struct scsi_host_template driver_template = {
- .proc_name = "sym53c416",
- .name = "Symbios Logic 53c416",
- .detect = sym53c416_detect,
- .info = sym53c416_info,
- .queuecommand = sym53c416_queuecommand,
- .eh_host_reset_handler =sym53c416_host_reset,
- .release = sym53c416_release,
- .bios_param = sym53c416_bios_param,
- .can_queue = 1,
- .this_id = SYM53C416_SCSI_ID,
- .sg_tablesize = 32,
- .unchecked_isa_dma = 1,
- .use_clustering = ENABLE_CLUSTERING,
-};
-#include "scsi_module.c"
projects / platform / kernel / linux-rpi.git / commitdiff