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Release 4.14 drivers/scsi/sym53c416.c

Directory: drivers/scsi
/*
 *  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); }

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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; }

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Total233100.00%4100.00%

/* 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; }

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Andrew Morton52.16%250.00%
Total231100.00%4100.00%


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; }

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Andrew Morton242.68%112.50%
FUJITA Tomonori232.57%112.50%
Alan Cox60.67%112.50%
Jeff Garzik30.34%112.50%
Total894100.00%8100.00%


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); }

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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; }

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Andrew Morton85.63%250.00%
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Total142100.00%4100.00%

/* 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++; } }

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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; }

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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); } } }

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Christoph Hellwig1618.82%125.00%
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Adrian Bunk11.18%125.00%
Total85100.00%4100.00%


int __init 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; }

Contributors

PersonTokensPropCommitsCommitProp
Linus Torvalds (pre-git)35656.60%220.00%
Linus Torvalds14122.42%330.00%
Christoph Hellwig619.70%220.00%
Alan Cox406.36%110.00%
Jaroslav Kysela193.02%110.00%
James Bottomley121.91%110.00%
Total629100.00%10100.00%


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; }

Contributors

PersonTokensPropCommitsCommitProp
Linus Torvalds (pre-git)103100.00%1100.00%
Total103100.00%1100.00%


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; }

Contributors

PersonTokensPropCommitsCommitProp
Linus Torvalds (pre-git)14890.80%120.00%
Alan Cox106.13%240.00%
Jeff Garzik53.07%240.00%
Total163100.00%5100.00%

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; }

Contributors

PersonTokensPropCommitsCommitProp
Linus Torvalds (pre-git)9774.05%114.29%
Jeff Garzik2015.27%114.29%
Alan Cox129.16%342.86%
Adrian Bunk10.76%114.29%
Lucas De Marchi10.76%114.29%
Total131100.00%7100.00%


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; }

Contributors

PersonTokensPropCommitsCommitProp
Alan Cox4896.00%150.00%
Linus Torvalds (pre-git)24.00%150.00%
Total50100.00%2100.00%


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; }

Contributors

PersonTokensPropCommitsCommitProp
Linus Torvalds (pre-git)8789.69%125.00%
Christoph Hellwig66.19%125.00%
Al Viro33.09%125.00%
Linus Torvalds11.03%125.00%
Total97100.00%4100.00%

/* 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"

Overall Contributors

PersonTokensPropCommitsCommitProp
Linus Torvalds (pre-git)334580.84%616.22%
Linus Torvalds2917.03%410.81%
Alan Cox1854.47%410.81%
Christoph Hellwig1513.65%410.81%
Andrew Morton431.04%38.11%
Jeff Garzik320.77%410.81%
Randy Dunlap240.58%12.70%
FUJITA Tomonori230.56%12.70%
Jaroslav Kysela190.46%12.70%
James Bottomley120.29%12.70%
Thomas Gleixner40.10%12.70%
Al Viro30.07%12.70%
Adrian Bunk30.07%38.11%
Arjan van de Ven10.02%12.70%
Jens Axboe10.02%12.70%
Lucas De Marchi10.02%12.70%
Greg Kroah-Hartman0.00%00.00%
Total4138100.00%37100.00%
Directory: drivers/scsi
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