Quelle initio.c
Sprache: C
// SPDX-License-Identifier: GPL-2.0-or-later
/**************************************************************************
* Initio 9100 device driver for Linux .
*
* Copyright ( c ) 1994 - 1998 Initio Corporation
* Copyright ( c ) 1998 Bas Vermeulen < bvermeul @ blackstar . xs4all . nl >
* Copyright ( c ) 2004 Christoph Hellwig < hch @ lst . de >
* Copyright ( c ) 2007 Red Hat
*
* * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * *
*
* DESCRIPTION :
*
* This is the Linux low - level SCSI driver for Initio INI - 9 X00U / UW SCSI host
* adapters
*
* 08 / 06 / 97 hc - v1 . 01 h
* - Support inic - 940 and inic - 935
* 09 / 26 / 97 hc - v1 . 01 i
* - Make correction from J . W . Schultz suggestion
* 10 / 13 / 97 hc - Support reset function
* 10 / 21 / 97 hc - v1 . 01 j
* - Support 32 LUN ( SCSI 3 )
* 01 / 14 / 98 hc - v1 . 01 k
* - Fix memory allocation problem
* 03 / 04 / 98 hc - v1 . 01 l
* - Fix tape rewind which will hang the system problem
* - Set can_queue to initio_num_scb
* 06 / 25 / 98 hc - v1 . 01 m
* - Get it work for kernel version > = 2 . 1 . 75
* - Dynamic assign SCSI bus reset holding time in initio_init ( )
* 07 / 02 / 98 hc - v1 . 01 n
* - Support 0002134 A
* 08 / 07 / 98 hc - v1 . 01 o
* - Change the initio_abort_srb routine to use scsi_done . < 01 >
* 09 / 07 / 98 hl - v1 . 02
* - Change the INI9100U define and proc_dir_entry to
* reflect the newer Kernel 2 . 1 . 118 , but the v1 . o1o
* should work with Kernel 2 . 1 . 118 .
* 09 / 20 / 98 wh - v1 . 02 a
* - Support Abort command .
* - Handle reset routine .
* 09 / 21 / 98 hl - v1 . 03
* - remove comments .
* 12 / 09 / 98 bv - v1 . 03 a
* - Removed unused code
* 12 / 13 / 98 bv - v1 . 03 b
* - Remove cli ( ) locking for kernels > = 2 . 1 . 95 . This uses
* spinlocks to serialize access to the pSRB_head and
* pSRB_tail members of the HCS structure .
* 09 / 01 / 99 bv - v1 . 03 d
* - Fixed a deadlock problem in SMP .
* 21 / 01 / 99 bv - v1 . 03 e
* - Add support for the Domex 3192 U PCI SCSI
* This is a slightly modified patch by
* Brian Macy < bmacy @ sunshinecomputing . com >
* 22 / 02 / 99 bv - v1 . 03 f
* - Didn ' t detect the INIC - 950 in 2 . 0 . x correctly .
* Now fixed .
* 05 / 07 / 99 bv - v1 . 03 g
* - Changed the assumption that HZ = 100
* 10 / 17 / 03 mc - v1 . 04
* - added new DMA API support
* 06 / 01 / 04 jmd - v1 . 04 a
* - Re - add reset_bus support
**************************************************************************/
#include <linux/module.h>
#include <linux/errno.h>
#include <linux/delay.h>
#include <linux/pci.h>
#include <linux/init.h>
#include <linux/blkdev.h>
#include <linux/spinlock.h>
#include <linux/stat.h>
#include <linux/kernel.h>
#include <linux/proc_fs.h>
#include <linux/string.h>
#include <linux/interrupt.h>
#include <linux/ioport.h>
#include <linux/slab.h>
#include <linux/jiffies.h>
#include <linux/dma-mapping.h>
#include <asm /io.h>
#include <scsi/scsi.h>
#include <scsi/scsi_cmnd.h>
#include <scsi/scsi_device.h>
#include <scsi/scsi_host.h>
#include <scsi/scsi_tcq.h>
#include "initio.h"
#define SENSE_SIZE 14
#define i91u_MAXQUEUE 2
#define i91u_REVID "Initio INI-9X00U/UW SCSI device driver; Revision: 1.04a"
#ifdef DEBUG_i91u
static unsigned int i91u_debug = DEBUG_DEFAULT;
#endif
static int initio_tag_enable = 1 ;
#ifdef DEBUG_i91u
static int setup_debug = 0 ;
#endif
static void i91uSCBPost(u8 * pHcb, u8 * pScb);
#define DEBUG_INTERRUPT 0
#define DEBUG_QUEUE 0
#define DEBUG_STATE 0
#define INT_DISC 0
/*--- forward references ---*/
static struct scsi_ctrl_blk *initio_find_busy_scb(struct initio_host * host, u16 tarlun);
static struct scsi_ctrl_blk *initio_find_done_scb(struct initio_host * host);
static int tulip_main(struct initio_host * host);
static int initio_next_state(struct initio_host * host);
static int initio_state_1(struct initio_host * host);
static int initio_state_2(struct initio_host * host);
static int initio_state_3(struct initio_host * host);
static int initio_state_4(struct initio_host * host);
static int initio_state_5(struct initio_host * host);
static int initio_state_6(struct initio_host * host);
static int initio_state_7(struct initio_host * host);
static int initio_xfer_data_in(struct initio_host * host);
static int initio_xfer_data_out(struct initio_host * host);
static int initio_xpad_in(struct initio_host * host);
static int initio_xpad_out(struct initio_host * host);
static int initio_status_msg(struct initio_host * host);
static int initio_msgin(struct initio_host * host);
static int initio_msgin_sync(struct initio_host * host);
static int initio_msgin_accept(struct initio_host * host);
static int initio_msgout_reject(struct initio_host * host);
static int initio_msgin_extend(struct initio_host * host);
static int initio_msgout_ide(struct initio_host * host);
static int initio_msgout_abort_targ(struct initio_host * host);
static int initio_msgout_abort_tag(struct initio_host * host);
static int initio_bus_device_reset(struct initio_host * host);
static void initio_select_atn(struct initio_host * host, struct scsi_ctrl_blk * scb);
static void initio_select_atn3(struct initio_host * host, struct scsi_ctrl_blk * scb);
static void initio_select_atn_stop(struct initio_host * host, struct scsi_ctrl_blk * scb);
static int int_initio_busfree(struct initio_host * host);
static int int_initio_scsi_rst(struct initio_host * host);
static int int_initio_bad_seq(struct initio_host * host);
static int int_initio_resel(struct initio_host * host);
static int initio_sync_done(struct initio_host * host);
static int wdtr_done(struct initio_host * host);
static int wait_tulip(struct initio_host * host);
static int initio_wait_done_disc(struct initio_host * host);
static int initio_wait_disc(struct initio_host * host);
static void tulip_scsi(struct initio_host * host);
static int initio_post_scsi_rst(struct initio_host * host);
static void initio_se2_ew_en(unsigned long base);
static void initio_se2_ew_ds(unsigned long base);
static int initio_se2_rd_all(unsigned long base);
static void initio_se2_update_all(unsigned long base); /* setup default pattern */
static void initio_read_eeprom(unsigned long base);
/* ---- INTERNAL VARIABLES ---- */
static NVRAM i91unvram;
static NVRAM *i91unvramp;
static u8 i91udftNvRam[64 ] =
{
/*----------- header -----------*/
0 x25, 0 xc9, /* Signature */
0 x40, /* Size */
0 x01, /* Revision */
/* -- Host Adapter Structure -- */
0 x95, /* ModelByte0 */
0 x00, /* ModelByte1 */
0 x00, /* ModelInfo */
0 x01, /* NumOfCh */
NBC1_DEFAULT, /* BIOSConfig1 */
0 , /* BIOSConfig2 */
0 , /* HAConfig1 */
0 , /* HAConfig2 */
/* SCSI channel 0 and target Structure */
7 , /* SCSIid */
NCC1_DEFAULT, /* SCSIconfig1 */
0 , /* SCSIconfig2 */
0 x10, /* NumSCSItarget */
NTC_DEFAULT, NTC_DEFAULT, NTC_DEFAULT, NTC_DEFAULT,
NTC_DEFAULT, NTC_DEFAULT, NTC_DEFAULT, NTC_DEFAULT,
NTC_DEFAULT, NTC_DEFAULT, NTC_DEFAULT, NTC_DEFAULT,
NTC_DEFAULT, NTC_DEFAULT, NTC_DEFAULT, NTC_DEFAULT,
/* SCSI channel 1 and target Structure */
7 , /* SCSIid */
NCC1_DEFAULT, /* SCSIconfig1 */
0 , /* SCSIconfig2 */
0 x10, /* NumSCSItarget */
NTC_DEFAULT, NTC_DEFAULT, NTC_DEFAULT, NTC_DEFAULT,
NTC_DEFAULT, NTC_DEFAULT, NTC_DEFAULT, NTC_DEFAULT,
NTC_DEFAULT, NTC_DEFAULT, NTC_DEFAULT, NTC_DEFAULT,
NTC_DEFAULT, NTC_DEFAULT, NTC_DEFAULT, NTC_DEFAULT,
0 , 0 , 0 , 0 , 0 , 0 , 0 , 0 , 0 , 0 ,
0 , 0 }; /* - CheckSum - */
static u8 initio_rate_tbl[8 ] = /* fast 20 */
{
/* nanosecond divide by 4 */
12 , /* 50ns, 20M */
18 , /* 75ns, 13.3M */
25 , /* 100ns, 10M */
31 , /* 125ns, 8M */
37 , /* 150ns, 6.6M */
43 , /* 175ns, 5.7M */
50 , /* 200ns, 5M */
62 /* 250ns, 4M */
};
static void initio_do_pause(unsigned amount)
{
/* Pause for amount jiffies */
unsigned long the_time = jiffies + amount;
while (time_before_eq(jiffies, the_time))
cpu_relax();
}
/*-- forward reference --*/
/******************************************************************
Input : instruction for Serial E2PROM
EX : se2_rd ( 0 call se2_instr ( ) to send address and read command
StartBit OP_Code Address Data
- - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - -
1 1 , 0 A5 , A4 , A3 , A2 , A1 , A0 D15 - D0
+ - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - -
|
CS - - - - - +
+ - - + + - - + + - - + + - - + + - - +
^ | ^ | ^ | ^ | ^ |
| | | | | | | | | |
CLK - - - - - - - + + - - + + - - + + - - + + - - + + - -
( leading edge trigger )
+ - - 1 - - - - - 1 - - +
| SB OP | OP A5 A4
DI - - - - + + - - 0 - - - - - - - - - - - - - - - - - -
( address and cmd sent to nvram )
- - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - +
|
DO + - - -
( data sent from nvram )
******************************************************************/
/**
* initio_se2_instr - bitbang an instruction
* @ base : Base of InitIO controller
* @ instr : Instruction for serial E2PROM
*
* Bitbang an instruction out to the serial E2Prom
*/
static void initio_se2_instr(unsigned long base, u8 instr)
{
int i;
u8 b;
outb(SE2CS | SE2DO, base + TUL_NVRAM); /* cs+start bit */
udelay(30 );
outb(SE2CS | SE2CLK | SE2DO, base + TUL_NVRAM); /* +CLK */
udelay(30 );
for (i = 0 ; i < 8 ; i++) {
if (instr & 0 x80)
b = SE2CS | SE2DO; /* -CLK+dataBit */
else
b = SE2CS; /* -CLK */
outb(b, base + TUL_NVRAM);
udelay(30 );
outb(b | SE2CLK, base + TUL_NVRAM); /* +CLK */
udelay(30 );
instr <<= 1 ;
}
outb(SE2CS, base + TUL_NVRAM); /* -CLK */
udelay(30 );
}
/**
* initio_se2_ew_en - Enable erase / write
* @ base : Base address of InitIO controller
*
* Enable erase / write state of serial EEPROM
*/
void initio_se2_ew_en(unsigned long base)
{
initio_se2_instr(base, 0 x30); /* EWEN */
outb(0 , base + TUL_NVRAM); /* -CS */
udelay(30 );
}
/**
* initio_se2_ew_ds - Disable erase / write
* @ base : Base address of InitIO controller
*
* Disable erase / write state of serial EEPROM
*/
void initio_se2_ew_ds(unsigned long base)
{
initio_se2_instr(base, 0 ); /* EWDS */
outb(0 , base + TUL_NVRAM); /* -CS */
udelay(30 );
}
/**
* initio_se2_rd - read E2PROM word
* @ base : Base of InitIO controller
* @ addr : Address of word in E2PROM
*
* Read a word from the NV E2PROM device
*/
static u16 initio_se2_rd(unsigned long base, u8 addr)
{
u8 instr, rb;
u16 val = 0 ;
int i;
instr = (u8) (addr | 0 x80);
initio_se2_instr(base, instr); /* READ INSTR */
for (i = 15 ; i >= 0 ; i--) {
outb(SE2CS | SE2CLK, base + TUL_NVRAM); /* +CLK */
udelay(30 );
outb(SE2CS, base + TUL_NVRAM); /* -CLK */
/* sample data after the following edge of clock */
rb = inb(base + TUL_NVRAM);
rb &= SE2DI;
val += (rb << i);
udelay(30 ); /* 6/20/95 */
}
outb(0 , base + TUL_NVRAM); /* no chip select */
udelay(30 );
return val;
}
/**
* initio_se2_wr - read E2PROM word
* @ base : Base of InitIO controller
* @ addr : Address of word in E2PROM
* @ val : Value to write
*
* Write a word to the NV E2PROM device . Used when recovering from
* a problem with the NV .
*/
static void initio_se2_wr(unsigned long base, u8 addr, u16 val)
{
u8 instr;
int i;
instr = (u8) (addr | 0 x40);
initio_se2_instr(base, instr); /* WRITE INSTR */
for (i = 15 ; i >= 0 ; i--) {
if (val & 0 x8000)
outb(SE2CS | SE2DO, base + TUL_NVRAM); /* -CLK+dataBit 1 */
else
outb(SE2CS, base + TUL_NVRAM); /* -CLK+dataBit 0 */
udelay(30 );
outb(SE2CS | SE2CLK, base + TUL_NVRAM); /* +CLK */
udelay(30 );
val <<= 1 ;
}
outb(SE2CS, base + TUL_NVRAM); /* -CLK */
udelay(30 );
outb(0 , base + TUL_NVRAM); /* -CS */
udelay(30 );
outb(SE2CS, base + TUL_NVRAM); /* +CS */
udelay(30 );
for (;;) {
outb(SE2CS | SE2CLK, base + TUL_NVRAM); /* +CLK */
udelay(30 );
outb(SE2CS, base + TUL_NVRAM); /* -CLK */
udelay(30 );
if (inb(base + TUL_NVRAM) & SE2DI)
break ; /* write complete */
}
outb(0 , base + TUL_NVRAM); /* -CS */
}
/**
* initio_se2_rd_all - read hostadapter NV configuration
* @ base : Base address of InitIO controller
*
* Reads the E2PROM data into main memory . Ensures that the checksum
* and header marker are valid . Returns 1 on success - 1 on error .
*/
static int initio_se2_rd_all(unsigned long base)
{
int i;
u16 chksum = 0 ;
u16 *np;
i91unvramp = &i91unvram;
np = (u16 *) i91unvramp;
for (i = 0 ; i < 32 ; i++)
*np++ = initio_se2_rd(base, i);
/* Is signature "ini" ok ? */
if (i91unvramp->NVM_Signature != INI_SIGNATURE)
return -1 ;
/* Is ckecksum ok ? */
np = (u16 *) i91unvramp;
for (i = 0 ; i < 31 ; i++)
chksum += *np++;
if (i91unvramp->NVM_CheckSum != chksum)
return -1 ;
return 1 ;
}
/**
* initio_se2_update_all - Update E2PROM
* @ base : Base of InitIO controller
*
* Update the E2PROM by wrting any changes into the E2PROM
* chip , rewriting the checksum .
*/
static void initio_se2_update_all(unsigned long base)
{ /* setup default pattern */
int i;
u16 chksum = 0 ;
u16 *np, *np1;
i91unvramp = &i91unvram;
/* Calculate checksum first */
np = (u16 *) i91udftNvRam;
for (i = 0 ; i < 31 ; i++)
chksum += *np++;
*np = chksum;
initio_se2_ew_en(base); /* Enable write */
np = (u16 *) i91udftNvRam;
np1 = (u16 *) i91unvramp;
for (i = 0 ; i < 32 ; i++, np++, np1++) {
if (*np != *np1)
initio_se2_wr(base, i, *np);
}
initio_se2_ew_ds(base); /* Disable write */
}
/**
* initio_read_eeprom - Retrieve configuration
* @ base : Base of InitIO Host Adapter
*
* Retrieve the host adapter configuration data from E2Prom . If the
* data is invalid then the defaults are used and are also restored
* into the E2PROM . This forms the access point for the SCSI driver
* into the E2PROM layer , the other functions for the E2PROM are all
* internal use .
*
* Must be called single threaded , uses a shared global area .
*/
static void initio_read_eeprom(unsigned long base)
{
u8 gctrl;
i91unvramp = &i91unvram;
/* Enable EEProm programming */
gctrl = inb(base + TUL_GCTRL);
outb(gctrl | TUL_GCTRL_EEPROM_BIT, base + TUL_GCTRL);
if (initio_se2_rd_all(base) != 1 ) {
initio_se2_update_all(base); /* setup default pattern */
initio_se2_rd_all(base); /* load again */
}
/* Disable EEProm programming */
gctrl = inb(base + TUL_GCTRL);
outb(gctrl & ~TUL_GCTRL_EEPROM_BIT, base + TUL_GCTRL);
}
/**
* initio_stop_bm - stop bus master
* @ host : InitIO we are stopping
*
* Stop any pending DMA operation , aborting the DMA if necessary
*/
static void initio_stop_bm(struct initio_host * host)
{
if (inb(host->addr + TUL_XStatus) & XPEND) { /* if DMA xfer is pending, abort DMA xfer */
outb(TAX_X_ABT | TAX_X_CLR_FIFO, host->addr + TUL_XCmd);
/* wait Abort DMA xfer done */
while ((inb(host->addr + TUL_Int) & XABT) == 0 )
cpu_relax();
}
outb(TSC_FLUSH_FIFO, host->addr + TUL_SCtrl0);
}
/**
* initio_reset_scsi - Reset SCSI host controller
* @ host : InitIO host to reset
* @ seconds : Recovery time
*
* Perform a full reset of the SCSI subsystem .
*/
static int initio_reset_scsi(struct initio_host * host, int seconds)
{
outb(TSC_RST_BUS, host->addr + TUL_SCtrl0);
while (!((host->jsint = inb(host->addr + TUL_SInt)) & TSS_SCSIRST_INT))
cpu_relax();
/* reset tulip chip */
outb(0 , host->addr + TUL_SSignal);
/* Stall for a while, wait for target's firmware ready,make it 2 sec ! */
/* SONY 5200 tape drive won't work if only stall for 1 sec */
/* FIXME: this is a very long busy wait right now */
initio_do_pause(seconds * HZ);
inb(host->addr + TUL_SInt);
return SCSI_RESET_SUCCESS;
}
/**
* initio_init - set up an InitIO host adapter
* @ host : InitIO host adapter
* @ bios_addr : BIOS address
*
* Set up the host adapter and devices according to the configuration
* retrieved from the E2PROM .
*
* Locking : Calls E2PROM layer code which is not re - enterable so must
* run single threaded for now .
*/
static void initio_init(struct initio_host * host, u8 *bios_addr)
{
int i;
u8 *flags;
u8 *heads;
/* Get E2Prom configuration */
initio_read_eeprom(host->addr);
if (i91unvramp->NVM_SCSIInfo[0 ].NVM_NumOfTarg == 8 )
host->max_tar = 8 ;
else
host->max_tar = 16 ;
host->config = i91unvramp->NVM_SCSIInfo[0 ].NVM_ChConfig1;
host->scsi_id = i91unvramp->NVM_SCSIInfo[0 ].NVM_ChSCSIID;
host->idmask = ~(1 << host->scsi_id);
#ifdef CHK_PARITY
/* Enable parity error response */
outb(inb(host->addr + TUL_PCMD) | 0 x40, host->addr + TUL_PCMD);
#endif
/* Mask all the interrupt */
outb(0 x1F, host->addr + TUL_Mask);
initio_stop_bm(host);
/* --- Initialize the tulip --- */
outb(TSC_RST_CHIP, host->addr + TUL_SCtrl0);
/* program HBA's SCSI ID */
outb(host->scsi_id << 4 , host->addr + TUL_SScsiId);
/* Enable Initiator Mode ,phase latch,alternate sync period mode,
disable SCSI reset */
if (host->config & HCC_EN_PAR)
host->sconf1 = (TSC_INITDEFAULT | TSC_EN_SCSI_PAR);
else
host->sconf1 = (TSC_INITDEFAULT);
outb(host->sconf1, host->addr + TUL_SConfig);
/* Enable HW reselect */
outb(TSC_HW_RESELECT, host->addr + TUL_SCtrl1);
outb(0 , host->addr + TUL_SPeriod);
/* selection time out = 250 ms */
outb(153 , host->addr + TUL_STimeOut);
/* Enable SCSI terminator */
outb((host->config & (HCC_ACT_TERM1 | HCC_ACT_TERM2)),
host->addr + TUL_XCtrl);
outb(((host->config & HCC_AUTO_TERM) >> 4 ) |
(inb(host->addr + TUL_GCTRL1) & 0 xFE),
host->addr + TUL_GCTRL1);
for (i = 0 ,
flags = & (i91unvramp->NVM_SCSIInfo[0 ].NVM_Targ0Config),
heads = bios_addr + 0 x180;
i < host->max_tar;
i++, flags++) {
host->targets[i].flags = *flags & ~(TCF_SYNC_DONE | TCF_WDTR_DONE);
if (host->targets[i].flags & TCF_EN_255)
host->targets[i].drv_flags = TCF_DRV_255_63;
else
host->targets[i].drv_flags = 0 ;
host->targets[i].js_period = 0 ;
host->targets[i].sconfig0 = host->sconf1;
host->targets[i].heads = *heads++;
if (host->targets[i].heads == 255 )
host->targets[i].drv_flags = TCF_DRV_255_63;
else
host->targets[i].drv_flags = 0 ;
host->targets[i].sectors = *heads++;
host->targets[i].flags &= ~TCF_BUSY;
host->act_tags[i] = 0 ;
host->max_tags[i] = 0 xFF;
} /* for */
printk("i91u: PCI Base=0x%04X, IRQ=%d, BIOS=0x%04X0, SCSI ID=%d\n" ,
host->addr, host->pci_dev->irq,
host->bios_addr, host->scsi_id);
/* Reset SCSI Bus */
if (host->config & HCC_SCSI_RESET) {
printk(KERN_INFO "i91u: Reset SCSI Bus ... \n" );
initio_reset_scsi(host, 10 );
}
outb(0 x17, host->addr + TUL_SCFG1);
outb(0 xE9, host->addr + TUL_SIntEnable);
}
/**
* initio_alloc_scb - Allocate an SCB
* @ host : InitIO host we are allocating for
*
* Walk the SCB list for the controller and allocate a free SCB if
* one exists .
*/
static struct scsi_ctrl_blk *initio_alloc_scb(struct initio_host *host)
{
struct scsi_ctrl_blk *scb;
unsigned long flags;
spin_lock_irqsave(&host->avail_lock, flags);
if ((scb = host->first_avail) != NULL) {
#if DEBUG_QUEUE
printk("find scb at %p\n" , scb);
#endif
if ((host->first_avail = scb->next) == NULL)
host->last_avail = NULL;
scb->next = NULL;
scb->status = SCB_RENT;
}
spin_unlock_irqrestore(&host->avail_lock, flags);
return scb;
}
/**
* initio_release_scb - Release an SCB
* @ host : InitIO host that owns the SCB
* @ cmnd : SCB command block being returned
*
* Return an allocated SCB to the host free list
*/
static void initio_release_scb(struct initio_host * host, struct scsi_ctrl_blk * cmnd)
{
unsigned long flags;
#if DEBUG_QUEUE
printk("Release SCB %p; " , cmnd);
#endif
spin_lock_irqsave(&(host->avail_lock), flags);
cmnd->srb = NULL;
cmnd->status = 0 ;
cmnd->next = NULL;
if (host->last_avail != NULL) {
host->last_avail->next = cmnd;
host->last_avail = cmnd;
} else {
host->first_avail = cmnd;
host->last_avail = cmnd;
}
spin_unlock_irqrestore(&(host->avail_lock), flags);
}
/***************************************************************************/
static void initio_append_pend_scb(struct initio_host * host, struct scsi_ctrl_blk * scbp)
{
#if DEBUG_QUEUE
printk("Append pend SCB %p; " , scbp);
#endif
scbp->status = SCB_PEND;
scbp->next = NULL;
if (host->last_pending != NULL) {
host->last_pending->next = scbp;
host->last_pending = scbp;
} else {
host->first_pending = scbp;
host->last_pending = scbp;
}
}
/***************************************************************************/
static void initio_push_pend_scb(struct initio_host * host, struct scsi_ctrl_blk * scbp)
{
#if DEBUG_QUEUE
printk("Push pend SCB %p; " , scbp);
#endif
scbp->status = SCB_PEND;
if ((scbp->next = host->first_pending) != NULL) {
host->first_pending = scbp;
} else {
host->first_pending = scbp;
host->last_pending = scbp;
}
}
static struct scsi_ctrl_blk *initio_find_first_pend_scb(struct initio_host * host)
{
struct scsi_ctrl_blk *first;
first = host->first_pending;
while (first != NULL) {
if (first->opcode != ExecSCSI)
return first;
if (first->tagmsg == 0 ) {
if ((host->act_tags[first->target] == 0 ) &&
!(host->targets[first->target].flags & TCF_BUSY))
return first;
} else {
if ((host->act_tags[first->target] >=
host->max_tags[first->target]) |
(host->targets[first->target].flags & TCF_BUSY)) {
first = first->next;
continue ;
}
return first;
}
first = first->next;
}
return first;
}
static void initio_unlink_pend_scb(struct initio_host * host, struct scsi_ctrl_blk * scb)
{
struct scsi_ctrl_blk *tmp, *prev;
#if DEBUG_QUEUE
printk("unlink pend SCB %p; " , scb);
#endif
prev = tmp = host->first_pending;
while (tmp != NULL) {
if (scb == tmp) { /* Unlink this SCB */
if (tmp == host->first_pending) {
if ((host->first_pending = tmp->next) == NULL)
host->last_pending = NULL;
} else {
prev->next = tmp->next;
if (tmp == host->last_pending)
host->last_pending = prev;
}
tmp->next = NULL;
break ;
}
prev = tmp;
tmp = tmp->next;
}
}
static void initio_append_busy_scb(struct initio_host * host, struct scsi_ctrl_blk * scbp)
{
#if DEBUG_QUEUE
printk("append busy SCB %p; " , scbp);
#endif
if (scbp->tagmsg)
host->act_tags[scbp->target]++;
else
host->targets[scbp->target].flags |= TCF_BUSY;
scbp->status = SCB_BUSY;
scbp->next = NULL;
if (host->last_busy != NULL) {
host->last_busy->next = scbp;
host->last_busy = scbp;
} else {
host->first_busy = scbp;
host->last_busy = scbp;
}
}
/***************************************************************************/
static struct scsi_ctrl_blk *initio_pop_busy_scb(struct initio_host * host)
{
struct scsi_ctrl_blk *tmp;
if ((tmp = host->first_busy) != NULL) {
if ((host->first_busy = tmp->next) == NULL)
host->last_busy = NULL;
tmp->next = NULL;
if (tmp->tagmsg)
host->act_tags[tmp->target]--;
else
host->targets[tmp->target].flags &= ~TCF_BUSY;
}
#if DEBUG_QUEUE
printk("Pop busy SCB %p; " , tmp);
#endif
return tmp;
}
/***************************************************************************/
static void initio_unlink_busy_scb(struct initio_host * host, struct scsi_ctrl_blk * scb)
{
struct scsi_ctrl_blk *tmp, *prev;
#if DEBUG_QUEUE
printk("unlink busy SCB %p; " , scb);
#endif
prev = tmp = host->first_busy;
while (tmp != NULL) {
if (scb == tmp) { /* Unlink this SCB */
if (tmp == host->first_busy) {
if ((host->first_busy = tmp->next) == NULL)
host->last_busy = NULL;
} else {
prev->next = tmp->next;
if (tmp == host->last_busy)
host->last_busy = prev;
}
tmp->next = NULL;
if (tmp->tagmsg)
host->act_tags[tmp->target]--;
else
host->targets[tmp->target].flags &= ~TCF_BUSY;
break ;
}
prev = tmp;
tmp = tmp->next;
}
return ;
}
struct scsi_ctrl_blk *initio_find_busy_scb(struct initio_host * host, u16 tarlun)
{
struct scsi_ctrl_blk *tmp;
u16 scbp_tarlun;
tmp = host->first_busy;
while (tmp != NULL) {
scbp_tarlun = (tmp->lun << 8 ) | (tmp->target);
if (scbp_tarlun == tarlun) { /* Unlink this SCB */
break ;
}
tmp = tmp->next;
}
#if DEBUG_QUEUE
printk("find busy SCB %p; " , tmp);
#endif
return tmp;
}
static void initio_append_done_scb(struct initio_host * host, struct scsi_ctrl_blk * scbp)
{
#if DEBUG_QUEUE
printk("append done SCB %p; " , scbp);
#endif
scbp->status = SCB_DONE;
scbp->next = NULL;
if (host->last_done != NULL) {
host->last_done->next = scbp;
host->last_done = scbp;
} else {
host->first_done = scbp;
host->last_done = scbp;
}
}
struct scsi_ctrl_blk *initio_find_done_scb(struct initio_host * host)
{
struct scsi_ctrl_blk *tmp;
if ((tmp = host->first_done) != NULL) {
if ((host->first_done = tmp->next) == NULL)
host->last_done = NULL;
tmp->next = NULL;
}
#if DEBUG_QUEUE
printk("find done SCB %p; " ,tmp);
#endif
return tmp;
}
static int initio_abort_srb(struct initio_host * host, struct scsi_cmnd *srbp)
{
unsigned long flags;
struct scsi_ctrl_blk *tmp, *prev;
spin_lock_irqsave(&host->semaph_lock, flags);
if ((host->semaph == 0 ) && (host->active == NULL)) {
/* disable Jasmin SCSI Int */
outb(0 x1F, host->addr + TUL_Mask);
spin_unlock_irqrestore(&host->semaph_lock, flags);
/* FIXME: synchronize_irq needed ? */
tulip_main(host);
spin_lock_irqsave(&host->semaph_lock, flags);
host->semaph = 1 ;
outb(0 x0F, host->addr + TUL_Mask);
spin_unlock_irqrestore(&host->semaph_lock, flags);
return SCSI_ABORT_SNOOZE;
}
prev = tmp = host->first_pending; /* Check Pend queue */
while (tmp != NULL) {
/* 07/27/98 */
if (tmp->srb == srbp) {
if (tmp == host->active) {
spin_unlock_irqrestore(&host->semaph_lock, flags);
return SCSI_ABORT_BUSY;
} else if (tmp == host->first_pending) {
if ((host->first_pending = tmp->next) == NULL)
host->last_pending = NULL;
} else {
prev->next = tmp->next;
if (tmp == host->last_pending)
host->last_pending = prev;
}
tmp->hastat = HOST_ABORTED;
tmp->flags |= SCF_DONE;
if (tmp->flags & SCF_POST)
(*tmp->post) ((u8 *) host, (u8 *) tmp);
spin_unlock_irqrestore(&host->semaph_lock, flags);
return SCSI_ABORT_SUCCESS;
}
prev = tmp;
tmp = tmp->next;
}
prev = tmp = host->first_busy; /* Check Busy queue */
while (tmp != NULL) {
if (tmp->srb == srbp) {
if (tmp == host->active) {
spin_unlock_irqrestore(&host->semaph_lock, flags);
return SCSI_ABORT_BUSY;
} else if (tmp->tagmsg == 0 ) {
spin_unlock_irqrestore(&host->semaph_lock, flags);
return SCSI_ABORT_BUSY;
} else {
host->act_tags[tmp->target]--;
if (tmp == host->first_busy) {
if ((host->first_busy = tmp->next) == NULL)
host->last_busy = NULL;
} else {
prev->next = tmp->next;
if (tmp == host->last_busy)
host->last_busy = prev;
}
tmp->next = NULL;
tmp->hastat = HOST_ABORTED;
tmp->flags |= SCF_DONE;
if (tmp->flags & SCF_POST)
(*tmp->post) ((u8 *) host, (u8 *) tmp);
spin_unlock_irqrestore(&host->semaph_lock, flags);
return SCSI_ABORT_SUCCESS;
}
}
prev = tmp;
tmp = tmp->next;
}
spin_unlock_irqrestore(&host->semaph_lock, flags);
return SCSI_ABORT_NOT_RUNNING;
}
/***************************************************************************/
static int initio_bad_seq(struct initio_host * host)
{
struct scsi_ctrl_blk *scb;
printk("initio_bad_seg c=%d\n" , host->index);
if ((scb = host->active) != NULL) {
initio_unlink_busy_scb(host, scb);
scb->hastat = HOST_BAD_PHAS;
scb->tastat = 0 ;
initio_append_done_scb(host, scb);
}
initio_stop_bm(host);
initio_reset_scsi(host, 8 ); /* 7/29/98 */
return initio_post_scsi_rst(host);
}
/************************************************************************/
static void initio_exec_scb(struct initio_host * host, struct scsi_ctrl_blk * scb)
{
unsigned long flags;
scb->mode = 0 ;
scb->sgidx = 0 ;
scb->sgmax = scb->sglen;
spin_lock_irqsave(&host->semaph_lock, flags);
initio_append_pend_scb(host, scb); /* Append this SCB to Pending queue */
/* VVVVV 07/21/98 */
if (host->semaph == 1 ) {
/* Disable Jasmin SCSI Int */
outb(0 x1F, host->addr + TUL_Mask);
host->semaph = 0 ;
spin_unlock_irqrestore(&host->semaph_lock, flags);
tulip_main(host);
spin_lock_irqsave(&host->semaph_lock, flags);
host->semaph = 1 ;
outb(0 x0F, host->addr + TUL_Mask);
}
spin_unlock_irqrestore(&host->semaph_lock, flags);
return ;
}
/***************************************************************************/
static int initio_isr(struct initio_host * host)
{
if (inb(host->addr + TUL_Int) & TSS_INT_PENDING) {
if (host->semaph == 1 ) {
outb(0 x1F, host->addr + TUL_Mask);
/* Disable Tulip SCSI Int */
host->semaph = 0 ;
tulip_main(host);
host->semaph = 1 ;
outb(0 x0F, host->addr + TUL_Mask);
return 1 ;
}
}
return 0 ;
}
static int tulip_main(struct initio_host * host)
{
struct scsi_ctrl_blk *scb;
for (;;) {
tulip_scsi(host); /* Call tulip_scsi */
/* Walk the list of completed SCBs */
while ((scb = initio_find_done_scb(host)) != NULL) { /* find done entry */
if (scb->tastat == INI_QUEUE_FULL) {
host->max_tags[scb->target] =
host->act_tags[scb->target] - 1 ;
scb->tastat = 0 ;
initio_append_pend_scb(host, scb);
continue ;
}
if (!(scb->mode & SCM_RSENS)) { /* not in auto req. sense mode */
if (scb->tastat == 2 ) {
/* clr sync. nego flag */
if (scb->flags & SCF_SENSE) {
u8 len;
len = scb->senselen;
if (len == 0 )
len = 1 ;
scb->buflen = scb->senselen;
scb->bufptr = scb->senseptr;
scb->flags &= ~(SCF_SG | SCF_DIR); /* for xfer_data_in */
/* so, we won't report wrong direction in xfer_data_in,
and won't report HOST_DO_DU in state_6 */
scb->mode = SCM_RSENS;
scb->ident &= 0 xBF; /* Disable Disconnect */
scb->tagmsg = 0 ;
scb->tastat = 0 ;
scb->cdblen = 6 ;
scb->cdb[0 ] = SCSICMD_RequestSense;
scb->cdb[1 ] = 0 ;
scb->cdb[2 ] = 0 ;
scb->cdb[3 ] = 0 ;
scb->cdb[4 ] = len;
scb->cdb[5 ] = 0 ;
initio_push_pend_scb(host, scb);
break ;
}
}
} else { /* in request sense mode */
if (scb->tastat == 2 ) { /* check contition status again after sending
requset sense cmd 0x3 */
scb->hastat = HOST_BAD_PHAS;
}
scb->tastat = 2 ;
}
scb->flags |= SCF_DONE;
if (scb->flags & SCF_POST) {
/* FIXME: only one post method and lose casts */
(*scb->post) ((u8 *) host, (u8 *) scb);
}
} /* while */
/* find_active: */
if (inb(host->addr + TUL_SStatus0) & TSS_INT_PENDING)
continue ;
if (host->active) /* return to OS and wait for xfer_done_ISR/Selected_ISR */
return 1 ; /* return to OS, enable interrupt */
/* Check pending SCB */
if (initio_find_first_pend_scb(host) == NULL)
return 1 ; /* return to OS, enable interrupt */
} /* End of for loop */
/* statement won't reach here */
}
static void tulip_scsi(struct initio_host * host)
{
struct scsi_ctrl_blk *scb;
struct target_control *active_tc;
/* make sure to service interrupt asap */
if ((host->jsstatus0 = inb(host->addr + TUL_SStatus0)) & TSS_INT_PENDING) {
host->phase = host->jsstatus0 & TSS_PH_MASK;
host->jsstatus1 = inb(host->addr + TUL_SStatus1);
host->jsint = inb(host->addr + TUL_SInt);
if (host->jsint & TSS_SCSIRST_INT) { /* SCSI bus reset detected */
int_initio_scsi_rst(host);
return ;
}
if (host->jsint & TSS_RESEL_INT) { /* if selected/reselected interrupt */
if (int_initio_resel(host) == 0 )
initio_next_state(host);
return ;
}
if (host->jsint & TSS_SEL_TIMEOUT) {
int_initio_busfree(host);
return ;
}
if (host->jsint & TSS_DISC_INT) { /* BUS disconnection */
int_initio_busfree(host); /* unexpected bus free or sel timeout */
return ;
}
if (host->jsint & (TSS_FUNC_COMP | TSS_BUS_SERV)) { /* func complete or Bus service */
if (host->active)
initio_next_state(host);
return ;
}
}
if (host->active != NULL)
return ;
if ((scb = initio_find_first_pend_scb(host)) == NULL)
return ;
/* program HBA's SCSI ID & target SCSI ID */
outb((host->scsi_id << 4 ) | (scb->target & 0 x0F),
host->addr + TUL_SScsiId);
if (scb->opcode == ExecSCSI) {
active_tc = &host->targets[scb->target];
if (scb->tagmsg)
active_tc->drv_flags |= TCF_DRV_EN_TAG;
else
active_tc->drv_flags &= ~TCF_DRV_EN_TAG;
outb(active_tc->js_period, host->addr + TUL_SPeriod);
if ((active_tc->flags & (TCF_WDTR_DONE | TCF_NO_WDTR)) == 0 ) { /* do wdtr negotiation */
initio_select_atn_stop(host, scb);
} else {
if ((active_tc->flags & (TCF_SYNC_DONE | TCF_NO_SYNC_NEGO)) == 0 ) { /* do sync negotiation */
initio_select_atn_stop(host, scb);
} else {
if (scb->tagmsg)
initio_select_atn3(host, scb);
else
initio_select_atn(host, scb);
}
}
if (scb->flags & SCF_POLL) {
while (wait_tulip(host) != -1 ) {
if (initio_next_state(host) == -1 )
break ;
}
}
} else if (scb->opcode == BusDevRst) {
initio_select_atn_stop(host, scb);
scb->next_state = 8 ;
if (scb->flags & SCF_POLL) {
while (wait_tulip(host) != -1 ) {
if (initio_next_state(host) == -1 )
break ;
}
}
} else if (scb->opcode == AbortCmd) {
if (initio_abort_srb(host, scb->srb) != 0 ) {
initio_unlink_pend_scb(host, scb);
initio_release_scb(host, scb);
} else {
scb->opcode = BusDevRst;
initio_select_atn_stop(host, scb);
scb->next_state = 8 ;
}
} else {
initio_unlink_pend_scb(host, scb);
scb->hastat = 0 x16; /* bad command */
initio_append_done_scb(host, scb);
}
return ;
}
/**
* initio_next_state - Next SCSI state
* @ host : InitIO host we are processing
*
* Progress the active command block along the state machine
* until we hit a state which we must wait for activity to occur .
*
* Returns zero or a negative code .
*/
static int initio_next_state(struct initio_host * host)
{
int next;
next = host->active->next_state;
for (;;) {
switch (next) {
case 1 :
next = initio_state_1(host);
break ;
case 2 :
next = initio_state_2(host);
break ;
case 3 :
next = initio_state_3(host);
break ;
case 4 :
next = initio_state_4(host);
break ;
case 5 :
next = initio_state_5(host);
break ;
case 6 :
next = initio_state_6(host);
break ;
case 7 :
next = initio_state_7(host);
break ;
case 8 :
return initio_bus_device_reset(host);
default :
return initio_bad_seq(host);
}
if (next <= 0 )
return next;
}
}
/**
* initio_state_1 - SCSI state machine
* @ host : InitIO host we are controlling
*
* Perform SCSI state processing for Select / Attention / Stop
*/
static int initio_state_1(struct initio_host * host)
{
struct scsi_ctrl_blk *scb = host->active;
struct target_control *active_tc = host->active_tc;
#if DEBUG_STATE
printk("-s1-" );
#endif
/* Move the SCB from pending to busy */
initio_unlink_pend_scb(host, scb);
initio_append_busy_scb(host, scb);
outb(active_tc->sconfig0, host->addr + TUL_SConfig );
/* ATN on */
if (host->phase == MSG_OUT) {
outb(TSC_EN_BUS_IN | TSC_HW_RESELECT, host->addr + TUL_SCtrl1);
outb(scb->ident, host->addr + TUL_SFifo);
if (scb->tagmsg) {
outb(scb->tagmsg, host->addr + TUL_SFifo);
outb(scb->tagid, host->addr + TUL_SFifo);
}
if ((active_tc->flags & (TCF_WDTR_DONE | TCF_NO_WDTR)) == 0 ) {
active_tc->flags |= TCF_WDTR_DONE;
outb(EXTENDED_MESSAGE, host->addr + TUL_SFifo);
outb(2 , host->addr + TUL_SFifo); /* Extended msg length */
outb(EXTENDED_SDTR, host->addr + TUL_SFifo); /* Sync request */
outb(1 , host->addr + TUL_SFifo); /* Start from 16 bits */
} else if ((active_tc->flags & (TCF_SYNC_DONE | TCF_NO_SYNC_NEGO)) == 0 ) {
active_tc->flags |= TCF_SYNC_DONE;
outb(EXTENDED_MESSAGE, host->addr + TUL_SFifo);
outb(3 , host->addr + TUL_SFifo); /* extended msg length */
outb(EXTENDED_SDTR, host->addr + TUL_SFifo); /* sync request */
outb(initio_rate_tbl[active_tc->flags & TCF_SCSI_RATE], host->addr + TUL_SFifo);
outb(MAX_OFFSET, host->addr + TUL_SFifo); /* REQ/ACK offset */
}
outb(TSC_XF_FIFO_OUT, host->addr + TUL_SCmd);
if (wait_tulip(host) == -1 )
return -1 ;
}
outb(TSC_FLUSH_FIFO, host->addr + TUL_SCtrl0);
outb((inb(host->addr + TUL_SSignal) & (TSC_SET_ACK | 7 )), host->addr + TUL_SSignal);
/* Into before CDB xfer */
return 3 ;
}
/**
* initio_state_2 - SCSI state machine
* @ host : InitIO host we are controlling
*
* state after selection with attention
* state after selection with attention3
*/
static int initio_state_2(struct initio_host * host)
{
struct scsi_ctrl_blk *scb = host->active;
struct target_control *active_tc = host->active_tc;
#if DEBUG_STATE
printk("-s2-" );
#endif
initio_unlink_pend_scb(host, scb);
initio_append_busy_scb(host, scb);
outb(active_tc->sconfig0, host->addr + TUL_SConfig);
if (host->jsstatus1 & TSS_CMD_PH_CMP)
return 4 ;
outb(TSC_FLUSH_FIFO, host->addr + TUL_SCtrl0);
outb((inb(host->addr + TUL_SSignal) & (TSC_SET_ACK | 7 )), host->addr + TUL_SSignal);
/* Into before CDB xfer */
return 3 ;
}
/**
* initio_state_3 - SCSI state machine
* @ host : InitIO host we are controlling
*
* state before CDB xfer is done
*/
static int initio_state_3(struct initio_host * host)
{
struct scsi_ctrl_blk *scb = host->active;
struct target_control *active_tc = host->active_tc;
int i;
#if DEBUG_STATE
printk("-s3-" );
#endif
for (;;) {
switch (host->phase) {
case CMD_OUT: /* Command out phase */
for (i = 0 ; i < (int ) scb->cdblen; i++)
outb(scb->cdb[i], host->addr + TUL_SFifo);
outb(TSC_XF_FIFO_OUT, host->addr + TUL_SCmd);
if (wait_tulip(host) == -1 )
return -1 ;
if (host->phase == CMD_OUT)
return initio_bad_seq(host);
return 4 ;
case MSG_IN: /* Message in phase */
scb->next_state = 3 ;
if (initio_msgin(host) == -1 )
return -1 ;
break ;
case STATUS_IN: /* Status phase */
if (initio_status_msg(host) == -1 )
return -1 ;
break ;
case MSG_OUT: /* Message out phase */
if (active_tc->flags & (TCF_SYNC_DONE | TCF_NO_SYNC_NEGO)) {
outb(NOP, host->addr + TUL_SFifo); /* msg nop */
outb(TSC_XF_FIFO_OUT, host->addr + TUL_SCmd);
if (wait_tulip(host) == -1 )
return -1 ;
} else {
active_tc->flags |= TCF_SYNC_DONE;
outb(EXTENDED_MESSAGE, host->addr + TUL_SFifo);
outb(3 , host->addr + TUL_SFifo); /* ext. msg len */
outb(EXTENDED_SDTR, host->addr + TUL_SFifo); /* sync request */
outb(initio_rate_tbl[active_tc->flags & TCF_SCSI_RATE], host->addr + TUL_SFifo);
outb(MAX_OFFSET, host->addr + TUL_SFifo); /* REQ/ACK offset */
outb(TSC_XF_FIFO_OUT, host->addr + TUL_SCmd);
if (wait_tulip(host) == -1 )
return -1 ;
outb(TSC_FLUSH_FIFO, host->addr + TUL_SCtrl0);
outb(inb(host->addr + TUL_SSignal) & (TSC_SET_ACK | 7 ), host->addr + TUL_SSignal);
}
break ;
default :
return initio_bad_seq(host);
}
}
}
/**
* initio_state_4 - SCSI state machine
* @ host : InitIO host we are controlling
*
* SCSI state machine . State 4
*/
static int initio_state_4(struct initio_host * host)
{
struct scsi_ctrl_blk *scb = host->active;
#if DEBUG_STATE
printk("-s4-" );
#endif
if ((scb->flags & SCF_DIR) == SCF_NO_XF) {
return 6 ; /* Go to state 6 (After data) */
}
for (;;) {
if (scb->buflen == 0 )
return 6 ;
switch (host->phase) {
case STATUS_IN: /* Status phase */
if ((scb->flags & SCF_DIR) != 0 ) /* if direction bit set then report data underrun */
scb->hastat = HOST_DO_DU;
if ((initio_status_msg(host)) == -1 )
return -1 ;
break ;
case MSG_IN: /* Message in phase */
scb->next_state = 0 x4;
if (initio_msgin(host) == -1 )
return -1 ;
break ;
case MSG_OUT: /* Message out phase */
if (host->jsstatus0 & TSS_PAR_ERROR) {
scb->buflen = 0 ;
scb->hastat = HOST_DO_DU;
if (initio_msgout_ide(host) == -1 )
return -1 ;
return 6 ;
} else {
outb(NOP, host->addr + TUL_SFifo); /* msg nop */
outb(TSC_XF_FIFO_OUT, host->addr + TUL_SCmd);
if (wait_tulip(host) == -1 )
return -1 ;
}
break ;
case DATA_IN: /* Data in phase */
return initio_xfer_data_in(host);
case DATA_OUT: /* Data out phase */
return initio_xfer_data_out(host);
default :
return initio_bad_seq(host);
}
}
}
/**
* initio_state_5 - SCSI state machine
* @ host : InitIO host we are controlling
*
* State after dma xfer done or phase change before xfer done
*/
static int initio_state_5(struct initio_host * host)
{
struct scsi_ctrl_blk *scb = host->active;
long cnt, xcnt; /* cannot use unsigned !! code: if (xcnt < 0) */
#if DEBUG_STATE
printk("-s5-" );
#endif
/*------ get remaining count -------*/
cnt = inl(host->addr + TUL_SCnt0) & 0 x0FFFFFF;
if (inb(host->addr + TUL_XCmd) & 0 x20) {
/* ----------------------- DATA_IN ----------------------------- */
/* check scsi parity error */
if (host->jsstatus0 & TSS_PAR_ERROR)
scb->hastat = HOST_DO_DU;
if (inb(host->addr + TUL_XStatus) & XPEND) { /* DMA xfer pending, Send STOP */
/* tell Hardware scsi xfer has been terminated */
outb(inb(host->addr + TUL_XCtrl) | 0 x80, host->addr + TUL_XCtrl);
/* wait until DMA xfer not pending */
while (inb(host->addr + TUL_XStatus) & XPEND)
cpu_relax();
}
} else {
/*-------- DATA OUT -----------*/
if ((inb(host->addr + TUL_SStatus1) & TSS_XFER_CMP) == 0 ) {
if (host->active_tc->js_period & TSC_WIDE_SCSI)
cnt += (inb(host->addr + TUL_SFifoCnt) & 0 x1F) << 1 ;
else
cnt += (inb(host->addr + TUL_SFifoCnt) & 0 x1F);
}
if (inb(host->addr + TUL_XStatus) & XPEND) { /* if DMA xfer is pending, abort DMA xfer */
outb(TAX_X_ABT, host->addr + TUL_XCmd);
/* wait Abort DMA xfer done */
while ((inb(host->addr + TUL_Int) & XABT) == 0 )
cpu_relax();
}
if ((cnt == 1 ) && (host->phase == DATA_OUT)) {
outb(TSC_XF_FIFO_OUT, host->addr + TUL_SCmd);
if (wait_tulip(host) == -1 )
return -1 ;
cnt = 0 ;
} else {
if ((inb(host->addr + TUL_SStatus1) & TSS_XFER_CMP) == 0 )
outb(TSC_FLUSH_FIFO, host->addr + TUL_SCtrl0);
}
}
if (cnt == 0 ) {
scb->buflen = 0 ;
return 6 ; /* After Data */
}
/* Update active data pointer */
xcnt = (long ) scb->buflen - cnt; /* xcnt== bytes already xferred */
scb->buflen = (u32) cnt; /* cnt == bytes left to be xferred */
if (scb->flags & SCF_SG) {
struct sg_entry *sgp;
unsigned long i;
sgp = &scb->sglist[scb->sgidx];
for (i = scb->sgidx; i < scb->sgmax; sgp++, i++) {
xcnt -= (long ) sgp->len;
if (xcnt < 0 ) { /* this sgp xfer half done */
xcnt += (long ) sgp->len; /* xcnt == bytes xferred in this sgp */
sgp->data += (u32) xcnt; /* new ptr to be xfer */
sgp->len -= (u32) xcnt; /* new len to be xfer */
scb->bufptr += ((u32) (i - scb->sgidx) << 3 );
/* new SG table ptr */
scb->sglen = (u8) (scb->sgmax - i);
/* new SG table len */
scb->sgidx = (u16) i;
/* for next disc and come in this loop */
return 4 ; /* Go to state 4 */
}
/* else (xcnt >= 0 , i.e. this sgp already xferred */
} /* for */
return 6 ; /* Go to state 6 */
} else {
scb->bufptr += (u32) xcnt;
}
return 4 ; /* Go to state 4 */
}
/**
* initio_state_6 - SCSI state machine
* @ host : InitIO host we are controlling
*
* State after Data phase
*/
static int initio_state_6(struct initio_host * host)
{
struct scsi_ctrl_blk *scb = host->active;
#if DEBUG_STATE
printk("-s6-" );
#endif
for (;;) {
switch (host->phase) {
case STATUS_IN: /* Status phase */
if ((initio_status_msg(host)) == -1 )
return -1 ;
break ;
case MSG_IN: /* Message in phase */
scb->next_state = 6 ;
if ((initio_msgin(host)) == -1 )
return -1 ;
break ;
case MSG_OUT: /* Message out phase */
outb(NOP, host->addr + TUL_SFifo); /* msg nop */
outb(TSC_XF_FIFO_OUT, host->addr + TUL_SCmd);
if (wait_tulip(host) == -1 )
return -1 ;
break ;
case DATA_IN: /* Data in phase */
return initio_xpad_in(host);
case DATA_OUT: /* Data out phase */
return initio_xpad_out(host);
default :
return initio_bad_seq(host);
}
}
}
/**
* initio_state_7 - SCSI state machine
* @ host : InitIO host we are controlling
*
*/
static int initio_state_7(struct initio_host * host)
{
int cnt, i;
#if DEBUG_STATE
printk("-s7-" );
#endif
/* flush SCSI FIFO */
cnt = inb(host->addr + TUL_SFifoCnt) & 0 x1F;
if (cnt) {
for (i = 0 ; i < cnt; i++)
inb(host->addr + TUL_SFifo);
}
switch (host->phase) {
case DATA_IN: /* Data in phase */
case DATA_OUT: /* Data out phase */
return initio_bad_seq(host);
default :
return 6 ; /* Go to state 6 */
}
}
/**
* initio_xfer_data_in - Commence data input
* @ host : InitIO host in use
*
* Commence a block of data transfer . The transfer itself will
* be managed by the controller and we will get a completion ( or
* failure ) interrupt .
*/
static int initio_xfer_data_in(struct initio_host * host)
{
struct scsi_ctrl_blk *scb = host->active;
if ((scb->flags & SCF_DIR) == SCF_DOUT)
return 6 ; /* wrong direction */
outl(scb->buflen, host->addr + TUL_SCnt0);
outb(TSC_XF_DMA_IN, host->addr + TUL_SCmd); /* 7/25/95 */
if (scb->flags & SCF_SG) { /* S/G xfer */
outl(((u32) scb->sglen) << 3 , host->addr + TUL_XCntH);
outl(scb->bufptr, host->addr + TUL_XAddH);
outb(TAX_SG_IN, host->addr + TUL_XCmd);
} else {
outl(scb->buflen, host->addr + TUL_XCntH);
outl(scb->bufptr, host->addr + TUL_XAddH);
outb(TAX_X_IN, host->addr + TUL_XCmd);
}
scb->next_state = 0 x5;
return 0 ; /* return to OS, wait xfer done , let jas_isr come in */
}
/**
* initio_xfer_data_out - Commence data output
* @ host : InitIO host in use
*
* Commence a block of data transfer . The transfer itself will
* be managed by the controller and we will get a completion ( or
* failure ) interrupt .
*/
static int initio_xfer_data_out(struct initio_host * host)
{
struct scsi_ctrl_blk *scb = host->active;
if ((scb->flags & SCF_DIR) == SCF_DIN)
return 6 ; /* wrong direction */
outl(scb->buflen, host->addr + TUL_SCnt0);
outb(TSC_XF_DMA_OUT, host->addr + TUL_SCmd);
if (scb->flags & SCF_SG) { /* S/G xfer */
outl(((u32) scb->sglen) << 3 , host->addr + TUL_XCntH);
outl(scb->bufptr, host->addr + TUL_XAddH);
outb(TAX_SG_OUT, host->addr + TUL_XCmd);
} else {
outl(scb->buflen, host->addr + TUL_XCntH);
outl(scb->bufptr, host->addr + TUL_XAddH);
outb(TAX_X_OUT, host->addr + TUL_XCmd);
}
scb->next_state = 0 x5;
return 0 ; /* return to OS, wait xfer done , let jas_isr come in */
}
int initio_xpad_in(struct initio_host * host)
{
struct scsi_ctrl_blk *scb = host->active;
struct target_control *active_tc = host->active_tc;
if ((scb->flags & SCF_DIR) != SCF_NO_DCHK)
scb->hastat = HOST_DO_DU; /* over run */
for (;;) {
if (active_tc->js_period & TSC_WIDE_SCSI)
outl(2 , host->addr + TUL_SCnt0);
else
outl(1 , host->addr + TUL_SCnt0);
outb(TSC_XF_FIFO_IN, host->addr + TUL_SCmd);
if (wait_tulip(host) == -1 )
return -1 ;
if (host->phase != DATA_IN) {
outb(TSC_FLUSH_FIFO, host->addr + TUL_SCtrl0);
return 6 ;
}
inb(host->addr + TUL_SFifo);
}
}
int initio_xpad_out(struct initio_host * host)
{
struct scsi_ctrl_blk *scb = host->active;
struct target_control *active_tc = host->active_tc;
if ((scb->flags & SCF_DIR) != SCF_NO_DCHK)
scb->hastat = HOST_DO_DU; /* over run */
for (;;) {
if (active_tc->js_period & TSC_WIDE_SCSI)
outl(2 , host->addr + TUL_SCnt0);
else
outl(1 , host->addr + TUL_SCnt0);
outb(0 , host->addr + TUL_SFifo);
outb(TSC_XF_FIFO_OUT, host->addr + TUL_SCmd);
if ((wait_tulip(host)) == -1 )
return -1 ;
if (host->phase != DATA_OUT) { /* Disable wide CPU to allow read 16 bits */
outb(TSC_HW_RESELECT, host->addr + TUL_SCtrl1);
outb(TSC_FLUSH_FIFO, host->addr + TUL_SCtrl0);
return 6 ;
}
}
}
int initio_status_msg(struct initio_host * host)
{ /* status & MSG_IN */
struct scsi_ctrl_blk *scb = host->active;
u8 msg;
outb(TSC_CMD_COMP, host->addr + TUL_SCmd);
if (wait_tulip(host) == -1 )
return -1 ;
/* get status */
scb->tastat = inb(host->addr + TUL_SFifo);
if (host->phase == MSG_OUT) {
if (host->jsstatus0 & TSS_PAR_ERROR)
outb(MSG_PARITY_ERROR, host->addr + TUL_SFifo);
else
outb(NOP, host->addr + TUL_SFifo);
outb(TSC_XF_FIFO_OUT, host->addr + TUL_SCmd);
return wait_tulip(host);
}
if (host->phase == MSG_IN) {
msg = inb(host->addr + TUL_SFifo);
if (host->jsstatus0 & TSS_PAR_ERROR) { /* Parity error */
if ((initio_msgin_accept(host)) == -1 )
return -1 ;
if (host->phase != MSG_OUT)
return initio_bad_seq(host);
outb(MSG_PARITY_ERROR, host->addr + TUL_SFifo);
outb(TSC_XF_FIFO_OUT, host->addr + TUL_SCmd);
return wait_tulip(host);
}
if (msg == 0 ) { /* Command complete */
if ((scb->tastat & 0 x18) == 0 x10) /* No link support */
return initio_bad_seq(host);
outb(TSC_FLUSH_FIFO, host->addr + TUL_SCtrl0);
outb(TSC_MSG_ACCEPT, host->addr + TUL_SCmd);
return initio_wait_done_disc(host);
}
if (msg == LINKED_CMD_COMPLETE ||
msg == LINKED_FLG_CMD_COMPLETE) {
if ((scb->tastat & 0 x18) == 0 x10)
return initio_msgin_accept(host);
}
}
return initio_bad_seq(host);
}
/* scsi bus free */
int int_initio_busfree(struct initio_host * host)
{
struct scsi_ctrl_blk *scb = host->active;
if (scb != NULL) {
if (scb->status & SCB_SELECT) { /* selection timeout */
initio_unlink_pend_scb(host, scb);
scb->hastat = HOST_SEL_TOUT;
initio_append_done_scb(host, scb);
} else { /* Unexpected bus free */
initio_unlink_busy_scb(host, scb);
scb->hastat = HOST_BUS_FREE;
initio_append_done_scb(host, scb);
}
host->active = NULL;
host->active_tc = NULL;
}
outb(TSC_FLUSH_FIFO, host->addr + TUL_SCtrl0); /* Flush SCSI FIFO */
outb(TSC_INITDEFAULT, host->addr + TUL_SConfig);
outb(TSC_HW_RESELECT, host->addr + TUL_SCtrl1); /* Enable HW reselect */
return -1 ;
}
/**
* int_initio_scsi_rst - SCSI reset occurred
* @ host : Host seeing the reset
*
* A SCSI bus reset has occurred . Clean up any pending transfer
* the hardware is doing by DMA and then abort all active and
* disconnected commands . The mid layer should sort the rest out
* for us
*/
static int int_initio_scsi_rst(struct initio_host * host)
{
struct scsi_ctrl_blk *scb;
int i;
/* if DMA xfer is pending, abort DMA xfer */
if (inb(host->addr + TUL_XStatus) & 0 x01) {
outb(TAX_X_ABT | TAX_X_CLR_FIFO, host->addr + TUL_XCmd);
/* wait Abort DMA xfer done */
while ((inb(host->addr + TUL_Int) & 0 x04) == 0 )
cpu_relax();
outb(TSC_FLUSH_FIFO, host->addr + TUL_SCtrl0);
}
/* Abort all active & disconnected scb */
while ((scb = initio_pop_busy_scb(host)) != NULL) {
scb->hastat = HOST_BAD_PHAS;
initio_append_done_scb(host, scb);
}
host->active = NULL;
host->active_tc = NULL;
/* clr sync nego. done flag */
for (i = 0 ; i < host->max_tar; i++)
host->targets[i].flags &= ~(TCF_SYNC_DONE | TCF_WDTR_DONE);
return -1 ;
}
/**
* int_initio_resel - Reselection occurred
* @ host : InitIO host adapter
*
* A SCSI reselection event has been signalled and the interrupt
* is now being processed . Work out which command block needs attention
* and continue processing that command .
*/
int int_initio_resel(struct initio_host * host)
{
struct scsi_ctrl_blk *scb;
struct target_control *active_tc;
u8 tag, msg = 0 ;
u8 tar, lun;
if ((scb = host->active) != NULL) {
/* FIXME: Why check and not just clear ? */
if (scb->status & SCB_SELECT) /* if waiting for selection complete */
scb->status &= ~SCB_SELECT;
host->active = NULL;
}
/* --------- get target id---------------------- */
tar = inb(host->addr + TUL_SBusId);
/* ------ get LUN from Identify message----------- */
lun = inb(host->addr + TUL_SIdent) & 0 x0F;
/* 07/22/98 from 0x1F -> 0x0F */
active_tc = &host->targets[tar];
host->active_tc = active_tc;
outb(active_tc->sconfig0, host->addr + TUL_SConfig);
outb(active_tc->js_period, host->addr + TUL_SPeriod);
/* ------------- tag queueing ? ------------------- */
if (active_tc->drv_flags & TCF_DRV_EN_TAG) {
if ((initio_msgin_accept(host)) == -1 )
return -1 ;
if (host->phase != MSG_IN)
goto no_tag;
outl(1 , host->addr + TUL_SCnt0);
outb(TSC_XF_FIFO_IN, host->addr + TUL_SCmd);
if (wait_tulip(host) == -1 )
return -1 ;
msg = inb(host->addr + TUL_SFifo); /* Read Tag Message */
if (msg < SIMPLE_QUEUE_TAG || msg > ORDERED_QUEUE_TAG)
/* Is simple Tag */
goto no_tag;
if (initio_msgin_accept(host) == -1 )
return -1 ;
if (host->phase != MSG_IN)
goto no_tag;
outl(1 , host->addr + TUL_SCnt0);
outb(TSC_XF_FIFO_IN, host->addr + TUL_SCmd);
if (wait_tulip(host) == -1 )
return -1 ;
tag = inb(host->addr + TUL_SFifo); /* Read Tag ID */
scb = host->scb + tag;
if (scb->target != tar || scb->lun != lun) {
return initio_msgout_abort_tag(host);
}
if (scb->status != SCB_BUSY) { /* 03/24/95 */
return initio_msgout_abort_tag(host);
}
host->active = scb;
if ((initio_msgin_accept(host)) == -1 )
return -1 ;
} else { /* No tag */
no_tag:
if ((scb = initio_find_busy_scb(host, tar | (lun << 8 ))) == NULL) {
return initio_msgout_abort_targ(host);
}
host->active = scb;
if (!(active_tc->drv_flags & TCF_DRV_EN_TAG)) {
if ((initio_msgin_accept(host)) == -1 )
return -1 ;
}
}
return 0 ;
}
/**
* int_initio_bad_seq - out of phase
* @ host : InitIO host flagging event
*
* We have ended up out of phase somehow . Reset the host controller
* and throw all our toys out of the pram . Let the midlayer clean up
*/
static int int_initio_bad_seq(struct initio_host * host)
{ /* target wrong phase */
struct scsi_ctrl_blk *scb;
int i;
initio_reset_scsi(host, 10 );
while ((scb = initio_pop_busy_scb(host)) != NULL) {
scb->hastat = HOST_BAD_PHAS;
initio_append_done_scb(host, scb);
}
for (i = 0 ; i < host->max_tar; i++)
host->targets[i].flags &= ~(TCF_SYNC_DONE | TCF_WDTR_DONE);
return -1 ;
}
/**
* initio_msgout_abort_targ - abort a tag
* @ host : InitIO host
*
* Abort when the target / lun does not match or when our SCB is not
* busy . Used by untagged commands .
*/
static int initio_msgout_abort_targ(struct initio_host * host)
{
outb(((inb(host->addr + TUL_SSignal) & (TSC_SET_ACK | 7 )) | TSC_SET_ATN), host->addr + TUL_SSignal);
if (initio_msgin_accept(host) == -1 )
return -1 ;
if (host->phase != MSG_OUT)
return initio_bad_seq(host);
outb(ABORT_TASK_SET, host->addr + TUL_SFifo);
outb(TSC_XF_FIFO_OUT, host->addr + TUL_SCmd);
return initio_wait_disc(host);
}
/**
* initio_msgout_abort_tag - abort a tag
* @ host : InitIO host
*
* Abort when the target / lun does not match or when our SCB is not
* busy . Used for tagged commands .
*/
static int initio_msgout_abort_tag(struct initio_host * host)
{
outb(((inb(host->addr + TUL_SSignal) & (TSC_SET_ACK | 7 )) | TSC_SET_ATN), host->addr + TUL_SSignal);
if (initio_msgin_accept(host) == -1 )
return -1 ;
if (host->phase != MSG_OUT)
return initio_bad_seq(host);
outb(ABORT_TASK, host->addr + TUL_SFifo);
outb(TSC_XF_FIFO_OUT, host->addr + TUL_SCmd);
return initio_wait_disc(host);
}
/**
* initio_msgin - Message in
* @ host : InitIO Host
*
* Process incoming message
*/
static int initio_msgin(struct initio_host * host)
{
struct target_control *active_tc;
for (;;) {
outb(TSC_FLUSH_FIFO, host->addr + TUL_SCtrl0);
outl(1 , host->addr + TUL_SCnt0);
outb(TSC_XF_FIFO_IN, host->addr + TUL_SCmd);
if (wait_tulip(host) == -1 )
return -1 ;
switch (inb(host->addr + TUL_SFifo)) {
case DISCONNECT: /* Disconnect msg */
outb(TSC_MSG_ACCEPT, host->addr + TUL_SCmd);
return initio_wait_disc(host);
case SAVE_POINTERS:
case RESTORE_POINTERS:
case NOP:
initio_msgin_accept(host);
break ;
case MESSAGE_REJECT: /* Clear ATN first */
outb((inb(host->addr + TUL_SSignal) & (TSC_SET_ACK | 7 )),
host->addr + TUL_SSignal);
active_tc = host->active_tc;
if ((active_tc->flags & (TCF_SYNC_DONE | TCF_NO_SYNC_NEGO)) == 0 ) /* do sync nego */
outb(((inb(host->addr + TUL_SSignal) & (TSC_SET_ACK | 7 )) | TSC_SET_ATN),
host->addr + TUL_SSignal);
initio_msgin_accept(host);
break ;
case EXTENDED_MESSAGE: /* extended msg */
initio_msgin_extend(host);
break ;
case IGNORE_WIDE_RESIDUE:
initio_msgin_accept(host);
break ;
case COMMAND_COMPLETE:
outb(TSC_FLUSH_FIFO, host->addr + TUL_SCtrl0);
outb(TSC_MSG_ACCEPT, host->addr + TUL_SCmd);
return initio_wait_done_disc(host);
default :
initio_msgout_reject(host);
break ;
}
if (host->phase != MSG_IN)
return host->phase;
}
/* statement won't reach here */
}
static int initio_msgout_reject(struct initio_host * host)
{
outb(((inb(host->addr + TUL_SSignal) & (TSC_SET_ACK | 7 )) | TSC_SET_ATN), host->addr + TUL_SSignal);
if (initio_msgin_accept(host) == -1 )
return -1 ;
if (host->phase == MSG_OUT) {
outb(MESSAGE_REJECT, host->addr + TUL_SFifo); /* Msg reject */
outb(TSC_XF_FIFO_OUT, host->addr + TUL_SCmd);
return wait_tulip(host);
}
return host->phase;
}
static int initio_msgout_ide(struct initio_host * host)
{
outb(INITIATOR_ERROR, host->addr + TUL_SFifo); /* Initiator Detected Error */
outb(TSC_XF_FIFO_OUT, host->addr + TUL_SCmd);
return wait_tulip(host);
}
static int initio_msgin_extend(struct initio_host * host)
{
u8 len, idx;
if (initio_msgin_accept(host) != MSG_IN)
return host->phase;
/* Get extended msg length */
outl(1 , host->addr + TUL_SCnt0);
outb(TSC_XF_FIFO_IN, host->addr + TUL_SCmd);
if (wait_tulip(host) == -1 )
return -1 ;
len = inb(host->addr + TUL_SFifo);
host->msg[0 ] = len;
for (idx = 1 ; len != 0 ; len--) {
if ((initio_msgin_accept(host)) != MSG_IN)
return host->phase;
outl(1 , host->addr + TUL_SCnt0);
outb(TSC_XF_FIFO_IN, host->addr + TUL_SCmd);
if (wait_tulip(host) == -1 )
return -1 ;
host->msg[idx++] = inb(host->addr + TUL_SFifo);
}
if (host->msg[1 ] == 1 ) { /* if it's synchronous data transfer request */
u8 r;
if (host->msg[0 ] != 3 ) /* if length is not right */
return initio_msgout_reject(host);
if (host->active_tc->flags & TCF_NO_SYNC_NEGO) { /* Set OFFSET=0 to do async, nego back */
host->msg[3 ] = 0 ;
} else {
if (initio_msgin_sync(host) == 0 &&
(host->active_tc->flags & TCF_SYNC_DONE)) {
initio_sync_done(host);
return initio_msgin_accept(host);
}
}
r = inb(host->addr + TUL_SSignal);
outb((r & (TSC_SET_ACK | 7 )) | TSC_SET_ATN,
host->addr + TUL_SSignal);
if (initio_msgin_accept(host) != MSG_OUT)
return host->phase;
/* sync msg out */
outb(TSC_FLUSH_FIFO, host->addr + TUL_SCtrl0);
initio_sync_done(host);
outb(EXTENDED_MESSAGE, host->addr + TUL_SFifo);
outb(3 , host->addr + TUL_SFifo);
outb(EXTENDED_SDTR, host->addr + TUL_SFifo);
outb(host->msg[2 ], host->addr + TUL_SFifo);
outb(host->msg[3 ], host->addr + TUL_SFifo);
outb(TSC_XF_FIFO_OUT, host->addr + TUL_SCmd);
return wait_tulip(host);
}
if (host->msg[0 ] != 2 || host->msg[1 ] != 3 )
return initio_msgout_reject(host);
/* if it's WIDE DATA XFER REQ */
if (host->active_tc->flags & TCF_NO_WDTR) {
host->msg[2 ] = 0 ;
} else {
if (host->msg[2 ] > 2 ) /* > 32 bits */
return initio_msgout_reject(host);
if (host->msg[2 ] == 2 ) { /* == 32 */
host->msg[2 ] = 1 ;
} else {
if ((host->active_tc->flags & TCF_NO_WDTR) == 0 ) {
wdtr_done(host);
if ((host->active_tc->flags & (TCF_SYNC_DONE | TCF_NO_SYNC_NEGO)) == 0 )
outb(((inb(host->addr + TUL_SSignal) & (TSC_SET_ACK | 7 )) | TSC_SET_ATN), host->addr + TUL_SSignal);
return initio_msgin_accept(host);
}
}
}
outb(((inb(host->addr + TUL_SSignal) & (TSC_SET_ACK | 7 )) | TSC_SET_ATN), host->addr + TUL_SSignal);
if (initio_msgin_accept(host) != MSG_OUT)
return host->phase;
/* WDTR msg out */
outb(EXTENDED_MESSAGE, host->addr + TUL_SFifo);
outb(2 , host->addr + TUL_SFifo);
outb(EXTENDED_WDTR, host->addr + TUL_SFifo);
outb(host->msg[2 ], host->addr + TUL_SFifo);
outb(TSC_XF_FIFO_OUT, host->addr + TUL_SCmd);
return wait_tulip(host);
}
static int initio_msgin_sync(struct initio_host * host)
{
char default_period;
default_period = initio_rate_tbl[host->active_tc->flags & TCF_SCSI_RATE];
if (host->msg[3 ] > MAX_OFFSET) {
host->msg[3 ] = MAX_OFFSET;
if (host->msg[2 ] < default_period) {
host->msg[2 ] = default_period;
return 1 ;
}
if (host->msg[2 ] >= 59 ) /* Change to async */
host->msg[3 ] = 0 ;
return 1 ;
}
/* offset requests asynchronous transfers ? */
if (host->msg[3 ] == 0 ) {
return 0 ;
}
if (host->msg[2 ] < default_period) {
host->msg[2 ] = default_period;
return 1 ;
}
if (host->msg[2 ] >= 59 ) {
host->msg[3 ] = 0 ;
return 1 ;
}
return 0 ;
}
static int wdtr_done(struct initio_host * host)
{
host->active_tc->flags &= ~TCF_SYNC_DONE;
host->active_tc->flags |= TCF_WDTR_DONE;
host->active_tc->js_period = 0 ;
if (host->msg[2 ]) /* if 16 bit */
host->active_tc->js_period |= TSC_WIDE_SCSI;
host->active_tc->sconfig0 &= ~TSC_ALT_PERIOD;
outb(host->active_tc->sconfig0, host->addr + TUL_SConfig);
outb(host->active_tc->js_period, host->addr + TUL_SPeriod);
return 1 ;
}
static int initio_sync_done(struct initio_host * host)
{
int i;
host->active_tc->flags |= TCF_SYNC_DONE;
if (host->msg[3 ]) {
host->active_tc->js_period |= host->msg[3 ];
for (i = 0 ; i < 8 ; i++) {
if (initio_rate_tbl[i] >= host->msg[2 ]) /* pick the big one */
break ;
}
host->active_tc->js_period |= (i << 4 );
host->active_tc->sconfig0 |= TSC_ALT_PERIOD;
}
outb(host->active_tc->sconfig0, host->addr + TUL_SConfig);
outb(host->active_tc->js_period, host->addr + TUL_SPeriod);
return -1 ;
}
static int initio_post_scsi_rst(struct initio_host * host)
{
struct scsi_ctrl_blk *scb;
struct target_control *active_tc;
int i;
host->active = NULL;
host->active_tc = NULL;
host->flags = 0 ;
while ((scb = initio_pop_busy_scb(host)) != NULL) {
scb->hastat = HOST_BAD_PHAS;
initio_append_done_scb(host, scb);
}
/* clear sync done flag */
active_tc = &host->targets[0 ];
for (i = 0 ; i < host->max_tar; active_tc++, i++) {
active_tc->flags &= ~(TCF_SYNC_DONE | TCF_WDTR_DONE);
/* Initialize the sync. xfer register values to an asyn xfer */
active_tc->js_period = 0 ;
active_tc->sconfig0 = host->sconf1;
host->act_tags[0 ] = 0 ; /* 07/22/98 */
host->targets[i].flags &= ~TCF_BUSY; /* 07/22/98 */
} /* for */
return -1 ;
}
static void initio_select_atn_stop(struct initio_host * host, struct scsi_ctrl_blk * scb)
{
scb->status |= SCB_SELECT;
scb->next_state = 0 x1;
host->active = scb;
host->active_tc = &host->targets[scb->target];
outb(TSC_SELATNSTOP, host->addr + TUL_SCmd);
}
static void initio_select_atn(struct initio_host * host, struct scsi_ctrl_blk * scb)
{
int i;
scb->status |= SCB_SELECT;
scb->next_state = 0 x2;
outb(scb->ident, host->addr + TUL_SFifo);
for (i = 0 ; i < (int ) scb->cdblen; i++)
outb(scb->cdb[i], host->addr + TUL_SFifo);
host->active_tc = &host->targets[scb->target];
host->active = scb;
outb(TSC_SEL_ATN, host->addr + TUL_SCmd);
}
static void initio_select_atn3(struct initio_host * host, struct scsi_ctrl_blk * scb)
{
int i;
scb->status |= SCB_SELECT;
scb->next_state = 0 x2;
outb(scb->ident, host->addr + TUL_SFifo);
outb(scb->tagmsg, host->addr + TUL_SFifo);
outb(scb->tagid, host->addr + TUL_SFifo);
for (i = 0 ; i < scb->cdblen; i++)
outb(scb->cdb[i], host->addr + TUL_SFifo);
host->active_tc = &host->targets[scb->target];
host->active = scb;
outb(TSC_SEL_ATN3, host->addr + TUL_SCmd);
}
/**
* initio_bus_device_reset - SCSI Bus Device Reset
* @ host : InitIO host to reset
*
* Perform a device reset and abort all pending SCBs for the
* victim device
*/
int initio_bus_device_reset(struct initio_host * host)
{
struct scsi_ctrl_blk *scb = host->active;
struct target_control *active_tc = host->active_tc;
struct scsi_ctrl_blk *tmp, *prev;
u8 tar;
if (host->phase != MSG_OUT)
return int_initio_bad_seq(host); /* Unexpected phase */
initio_unlink_pend_scb(host, scb);
initio_release_scb(host, scb);
tar = scb->target; /* target */
active_tc->flags &= ~(TCF_SYNC_DONE | TCF_WDTR_DONE | TCF_BUSY);
/* clr sync. nego & WDTR flags 07/22/98 */
/* abort all SCB with same target */
prev = tmp = host->first_busy; /* Check Busy queue */
while (tmp != NULL) {
if (tmp->target == tar) {
/* unlink it */
if (tmp == host->first_busy) {
if ((host->first_busy = tmp->next) == NULL)
host->last_busy = NULL;
} else {
prev->next = tmp->next;
if (tmp == host->last_busy)
host->last_busy = prev;
}
tmp->hastat = HOST_ABORTED;
initio_append_done_scb(host, tmp);
}
/* Previous haven't change */
else {
prev = tmp;
}
tmp = tmp->next;
}
outb(TARGET_RESET, host->addr + TUL_SFifo);
outb(TSC_XF_FIFO_OUT, host->addr + TUL_SCmd);
return initio_wait_disc(host);
}
static int initio_msgin_accept(struct initio_host * host)
{
outb(TSC_MSG_ACCEPT, host->addr + TUL_SCmd);
return wait_tulip(host);
}
static int wait_tulip(struct initio_host * host)
{
while (!((host->jsstatus0 = inb(host->addr + TUL_SStatus0))
& TSS_INT_PENDING))
cpu_relax();
host->jsint = inb(host->addr + TUL_SInt);
host->phase = host->jsstatus0 & TSS_PH_MASK;
host->jsstatus1 = inb(host->addr + TUL_SStatus1);
if (host->jsint & TSS_RESEL_INT) /* if SCSI bus reset detected */
return int_initio_resel(host);
if (host->jsint & TSS_SEL_TIMEOUT) /* if selected/reselected timeout interrupt */
return int_initio_busfree(host);
if (host->jsint & TSS_SCSIRST_INT) /* if SCSI bus reset detected */
return int_initio_scsi_rst(host);
if (host->jsint & TSS_DISC_INT) { /* BUS disconnection */
if (host->flags & HCF_EXPECT_DONE_DISC) {
outb(TSC_FLUSH_FIFO, host->addr + TUL_SCtrl0); /* Flush SCSI FIFO */
initio_unlink_busy_scb(host, host->active);
host->active->hastat = 0 ;
initio_append_done_scb(host, host->active);
host->active = NULL;
host->active_tc = NULL;
host->flags &= ~HCF_EXPECT_DONE_DISC;
outb(TSC_INITDEFAULT, host->addr + TUL_SConfig);
outb(TSC_HW_RESELECT, host->addr + TUL_SCtrl1); /* Enable HW reselect */
return -1 ;
}
if (host->flags & HCF_EXPECT_DISC) {
outb(TSC_FLUSH_FIFO, host->addr + TUL_SCtrl0); /* Flush SCSI FIFO */
host->active = NULL;
host->active_tc = NULL;
host->flags &= ~HCF_EXPECT_DISC;
outb(TSC_INITDEFAULT, host->addr + TUL_SConfig);
outb(TSC_HW_RESELECT, host->addr + TUL_SCtrl1); /* Enable HW reselect */
return -1 ;
}
return int_initio_busfree(host);
}
/* The old code really does the below. Can probably be removed */
if (host->jsint & (TSS_FUNC_COMP | TSS_BUS_SERV))
return host->phase;
return host->phase;
}
static int initio_wait_disc(struct initio_host * host)
{
while (!((host->jsstatus0 = inb(host->addr + TUL_SStatus0)) & TSS_INT_PENDING))
cpu_relax();
host->jsint = inb(host->addr + TUL_SInt);
if (host->jsint & TSS_SCSIRST_INT) /* if SCSI bus reset detected */
return int_initio_scsi_rst(host);
if (host->jsint & TSS_DISC_INT) { /* BUS disconnection */
outb(TSC_FLUSH_FIFO, host->addr + TUL_SCtrl0); /* Flush SCSI FIFO */
outb(TSC_INITDEFAULT, host->addr + TUL_SConfig);
outb(TSC_HW_RESELECT, host->addr + TUL_SCtrl1); /* Enable HW reselect */
host->active = NULL;
return -1 ;
}
return initio_bad_seq(host);
}
static int initio_wait_done_disc(struct initio_host * host)
{
while (!((host->jsstatus0 = inb(host->addr + TUL_SStatus0))
& TSS_INT_PENDING))
cpu_relax();
host->jsint = inb(host->addr + TUL_SInt);
if (host->jsint & TSS_SCSIRST_INT) /* if SCSI bus reset detected */
return int_initio_scsi_rst(host);
if (host->jsint & TSS_DISC_INT) { /* BUS disconnection */
outb(TSC_FLUSH_FIFO, host->addr + TUL_SCtrl0); /* Flush SCSI FIFO */
outb(TSC_INITDEFAULT, host->addr + TUL_SConfig);
outb(TSC_HW_RESELECT, host->addr + TUL_SCtrl1); /* Enable HW reselect */
initio_unlink_busy_scb(host, host->active);
initio_append_done_scb(host, host->active);
host->active = NULL;
return -1 ;
}
return initio_bad_seq(host);
}
/**
* i91u_intr - IRQ handler
* @ irqno : IRQ number
* @ dev_id : IRQ identifier
*
* Take the relevant locks and then invoke the actual isr processing
* code under the lock .
*/
static irqreturn_t i91u_intr(int irqno, void *dev_id)
{
struct Scsi_Host *dev = dev_id;
unsigned long flags;
int r;
spin_lock_irqsave(dev->host_lock, flags);
r = initio_isr((struct initio_host *)dev->hostdata);
spin_unlock_irqrestore(dev->host_lock, flags);
if (r)
return IRQ_HANDLED;
else
return IRQ_NONE;
}
/**
* initio_build_scb - Build the mappings and SCB
* @ host : InitIO host taking the command
* @ cblk : Firmware command block
* @ cmnd : SCSI midlayer command block
*
* Translate the abstract SCSI command into a firmware command block
* suitable for feeding to the InitIO host controller . This also requires
* we build the scatter gather lists and ensure they are mapped properly .
*/
static void initio_build_scb(struct initio_host * host, struct scsi_ctrl_blk * cblk, struct scsi_cmnd * cmnd)
{ /* Create corresponding SCB */
struct scatterlist *sglist;
struct sg_entry *sg; /* Pointer to SG list */
int i, nseg;
long total_len;
dma_addr_t dma_addr;
/* Fill in the command headers */
cblk->post = i91uSCBPost; /* i91u's callback routine */
cblk->srb = cmnd;
cblk->opcode = ExecSCSI;
cblk->flags = SCF_POST; /* After SCSI done, call post routine */
cblk->target = cmnd->device->id;
cblk->lun = cmnd->device->lun;
cblk->ident = cmnd->device->lun | DISC_ALLOW;
cblk->flags |= SCF_SENSE; /* Turn on auto request sense */
/* Map the sense buffer into bus memory */
dma_addr = dma_map_single(&host->pci_dev->dev, cmnd->sense_buffer,
SENSE_SIZE, DMA_FROM_DEVICE);
cblk->senseptr = (u32)dma_addr;
cblk->senselen = SENSE_SIZE;
initio_priv(cmnd)->sense_dma_addr = dma_addr;
cblk->cdblen = cmnd->cmd_len;
/* Clear the returned status */
cblk->hastat = 0 ;
cblk->tastat = 0 ;
/* Command the command */
memcpy(cblk->cdb, cmnd->cmnd, cmnd->cmd_len);
/* Set up tags */
if (cmnd->device->tagged_supported) { /* Tag Support */
cblk->tagmsg = SIMPLE_QUEUE_TAG; /* Do simple tag only */
} else {
cblk->tagmsg = 0 ; /* No tag support */
}
/* todo handle map_sg error */
nseg = scsi_dma_map(cmnd);
BUG_ON(nseg < 0 );
if (nseg) {
dma_addr = dma_map_single(&host->pci_dev->dev, &cblk->sglist[0 ],
sizeof (struct sg_entry) * TOTAL_SG_ENTRY,
DMA_BIDIRECTIONAL);
cblk->bufptr = (u32)dma_addr;
initio_priv(cmnd)->sglist_dma_addr = dma_addr;
cblk->sglen = nseg;
cblk->flags |= SCF_SG; /* Turn on SG list flag */
total_len = 0 ;
sg = &cblk->sglist[0 ];
scsi_for_each_sg(cmnd, sglist, cblk->sglen, i) {
sg->data = cpu_to_le32((u32)sg_dma_address(sglist));
sg->len = cpu_to_le32((u32)sg_dma_len(sglist));
total_len += sg_dma_len(sglist);
++sg;
}
cblk->buflen = (scsi_bufflen(cmnd) > total_len) ?
total_len : scsi_bufflen(cmnd);
} else { /* No data transfer required */
cblk->buflen = 0 ;
cblk->sglen = 0 ;
}
}
/**
* i91u_queuecommand_lck - Queue a new command if possible
* @ cmd : SCSI command block from the mid layer
*
* Attempts to queue a new command with the host adapter . Will return
* zero if successful or indicate a host busy condition if not ( which
* will cause the mid layer to call us again later with the command )
*/
static int i91u_queuecommand_lck(struct scsi_cmnd *cmd)
{
struct initio_host *host = (struct initio_host *) cmd->device->host->hostdata;
struct scsi_ctrl_blk *cmnd;
cmnd = initio_alloc_scb(host);
if (!cmnd)
return SCSI_MLQUEUE_HOST_BUSY;
initio_build_scb(host, cmnd, cmd);
initio_exec_scb(host, cmnd);
return 0 ;
}
static DEF_SCSI_QCMD(i91u_queuecommand)
/**
* i91u_bus_reset - reset the SCSI bus
* @ cmnd : Command block we want to trigger the reset for
*
* Initiate a SCSI bus reset sequence
*/
static int i91u_bus_reset(struct scsi_cmnd * cmnd)
{
struct initio_host *host;
host = (struct initio_host *) cmnd->device->host->hostdata;
spin_lock_irq(cmnd->device->host->host_lock);
initio_reset_scsi(host, 0 );
spin_unlock_irq(cmnd->device->host->host_lock);
return SUCCESS;
}
/**
* i91u_biosparam - return the " logical geometry
* @ sdev : SCSI device
* @ dev : Matching block device
* @ capacity : Sector size of drive
* @ info_array : Return space for BIOS geometry
*
* Map the device geometry in a manner compatible with the host
* controller BIOS behaviour .
*
* FIXME : limited to 2 ^ 32 sector devices .
*/
static int i91u_biosparam(struct scsi_device *sdev, struct block_device *dev,
sector_t capacity, int *info_array)
{
struct initio_host *host; /* Point to Host adapter control block */
struct target_control *tc;
host = (struct initio_host *) sdev->host->hostdata;
tc = &host->targets[sdev->id];
if (tc->heads) {
info_array[0 ] = tc->heads;
info_array[1 ] = tc->sectors;
info_array[2 ] = (unsigned long )capacity / tc->heads / tc->sectors;
} else {
if (tc->drv_flags & TCF_DRV_255_63) {
info_array[0 ] = 255 ;
info_array[1 ] = 63 ;
info_array[2 ] = (unsigned long )capacity / 255 / 63 ;
} else {
info_array[0 ] = 64 ;
info_array[1 ] = 32 ;
info_array[2 ] = (unsigned long )capacity >> 11 ;
}
}
#if defined (DEBUG_BIOSPARAM)
if (i91u_debug & debug_biosparam) {
printk("bios geometry: head=%d, sec=%d, cyl=%d\n" ,
info_array[0 ], info_array[1 ], info_array[2 ]);
printk("WARNING: check, if the bios geometry is correct.\n" );
}
#endif
return 0 ;
}
/**
* i91u_unmap_scb - Unmap a command
* @ pci_dev : PCI device the command is for
* @ cmnd : The command itself
*
* Unmap any PCI mapping / IOMMU resources allocated when the command
* was mapped originally as part of initio_build_scb
*/
static void i91u_unmap_scb(struct pci_dev *pci_dev, struct scsi_cmnd *cmnd)
{
/* auto sense buffer */
if (initio_priv(cmnd)->sense_dma_addr) {
dma_unmap_single(&pci_dev->dev,
initio_priv(cmnd)->sense_dma_addr,
SENSE_SIZE, DMA_FROM_DEVICE);
initio_priv(cmnd)->sense_dma_addr = 0 ;
}
/* request buffer */
if (scsi_sg_count(cmnd)) {
dma_unmap_single(&pci_dev->dev,
initio_priv(cmnd)->sglist_dma_addr,
sizeof (struct sg_entry) * TOTAL_SG_ENTRY,
DMA_BIDIRECTIONAL);
scsi_dma_unmap(cmnd);
}
}
/*
* i91uSCBPost - SCSI callback
*
* This is callback routine be called when tulip finish one
* SCSI command .
*/
static void i91uSCBPost(u8 * host_mem, u8 * cblk_mem)
{
struct scsi_cmnd *cmnd; /* Pointer to SCSI request block */
struct initio_host *host;
struct scsi_ctrl_blk *cblk;
host = (struct initio_host *) host_mem;
cblk = (struct scsi_ctrl_blk *) cblk_mem;
if ((cmnd = cblk->srb) == NULL) {
printk(KERN_ERR "i91uSCBPost: SRB pointer is empty\n" );
WARN_ON(1 );
initio_release_scb(host, cblk); /* Release SCB for current channel */
return ;
}
/*
* Remap the firmware error status into a mid layer one
*/
switch (cblk->hastat) {
case 0 x0:
case 0 xa: /* Linked command complete without error and linked normally */
case 0 xb: /* Linked command complete without error interrupt generated */
cblk->hastat = 0 ;
break ;
case 0 x11: /* Selection time out-The initiator selection or target
reselection was not complete within the SCSI Time out period */
cblk->hastat = DID_TIME_OUT;
break ;
case 0 x14: /* Target bus phase sequence failure-An invalid bus phase or bus
phase sequence was requested by the target . The host adapter
will generate a SCSI Reset Condition , notifying the host with
a SCRD interrupt */
cblk->hastat = DID_RESET;
break ;
case 0 x1a: /* SCB Aborted. 07/21/98 */
cblk->hastat = DID_ABORT;
break ;
case 0 x12: /* Data overrun/underrun-The target attempted to transfer more data
than was allocated by the Data Length field or the sum of the
Scatter / Gather Data Length fields. */
case 0 x13: /* Unexpected bus free-The target dropped the SCSI BSY at an unexpected time. */
case 0 x16: /* Invalid SCB Operation Code. */
default :
printk("ini9100u: %x %x\n" , cblk->hastat, cblk->tastat);
cblk->hastat = DID_ERROR; /* Couldn't find any better */
break ;
}
cmnd->result = cblk->tastat | (cblk->hastat << 16 );
i91u_unmap_scb(host->pci_dev, cmnd);
scsi_done(cmnd); /* Notify system DONE */
initio_release_scb(host, cblk); /* Release SCB for current channel */
}
static const struct scsi_host_template initio_template = {
.proc_name = "INI9100U" ,
.name = "Initio INI-9X00U/UW SCSI device driver" ,
.queuecommand = i91u_queuecommand,
.eh_bus_reset_handler = i91u_bus_reset,
.bios_param = i91u_biosparam,
.can_queue = MAX_TARGETS * i91u_MAXQUEUE,
.this_id = 1 ,
.sg_tablesize = SG_ALL,
.cmd_size = sizeof (struct initio_cmd_priv),
};
static int initio_probe_one(struct pci_dev *pdev,
const struct pci_device_id *id)
{
struct Scsi_Host *shost;
struct initio_host *host;
u32 reg;
u16 bios_seg;
struct scsi_ctrl_blk *scb, *tmp, *prev = NULL /* silence gcc */;
int num_scb, i, error;
error = pci_enable_device(pdev);
if (error)
return error;
pci_read_config_dword(pdev, 0 x44, (u32 *) & reg);
bios_seg = (u16) (reg & 0 xFF);
if (((reg & 0 xFF00) >> 8 ) == 0 xFF)
reg = 0 ;
bios_seg = (bios_seg << 8 ) + ((u16) ((reg & 0 xFF00) >> 8 ));
if (dma_set_mask(&pdev->dev, DMA_BIT_MASK(32 ))) {
printk(KERN_WARNING "i91u: Could not set 32 bit DMA mask\n" );
error = -ENODEV;
goto out_disable_device;
}
shost = scsi_host_alloc(&initio_template, sizeof (struct initio_host));
if (!shost) {
printk(KERN_WARNING "initio: Could not allocate host structure.\n" );
error = -ENOMEM;
goto out_disable_device;
}
host = (struct initio_host *)shost->hostdata;
memset(host, 0 , sizeof (struct initio_host));
host->addr = pci_resource_start(pdev, 0 );
host->bios_addr = bios_seg;
if (!request_region(host->addr, 256 , "i91u" )) {
printk(KERN_WARNING "initio: I/O port range 0x%x is busy.\n" , host->addr);
error = -ENODEV;
goto out_host_put;
}
if (initio_tag_enable) /* 1.01i */
num_scb = MAX_TARGETS * i91u_MAXQUEUE;
else
num_scb = MAX_TARGETS + 3 ; /* 1-tape, 1-CD_ROM, 1- extra */
for (; num_scb >= MAX_TARGETS + 3 ; num_scb--) {
i = num_scb * sizeof (struct scsi_ctrl_blk);
scb = kzalloc(i, GFP_KERNEL);
if (scb)
break ;
}
if (!scb) {
printk(KERN_WARNING "initio: Cannot allocate SCB array.\n" );
error = -ENOMEM;
goto out_release_region;
}
host->pci_dev = pdev;
host->semaph = 1 ;
spin_lock_init(&host->semaph_lock);
host->num_scbs = num_scb;
host->scb = scb;
host->next_pending = scb;
host->next_avail = scb;
for (i = 0 , tmp = scb; i < num_scb; i++, tmp++) {
tmp->tagid = i;
if (i != 0 )
prev->next = tmp;
prev = tmp;
}
prev->next = NULL;
host->scb_end = tmp;
host->first_avail = scb;
host->last_avail = prev;
spin_lock_init(&host->avail_lock);
initio_init(host, phys_to_virt(((u32)bios_seg << 4 )));
host->jsstatus0 = 0 ;
shost->io_port = host->addr;
shost->n_io_port = 0 xff;
shost->can_queue = num_scb; /* 03/05/98 */
shost->unique_id = host->addr;
shost->max_id = host->max_tar;
shost->max_lun = 32 ; /* 10/21/97 */
shost->irq = pdev->irq;
shost->this_id = host->scsi_id; /* Assign HCS index */
shost->base = host->addr;
shost->sg_tablesize = TOTAL_SG_ENTRY;
error = request_irq(pdev->irq, i91u_intr, IRQF_SHARED, "i91u" , shost);
if (error < 0 ) {
printk(KERN_WARNING "initio: Unable to request IRQ %d\n" , pdev->irq);
goto out_free_scbs;
}
pci_set_drvdata(pdev, shost);
error = scsi_add_host(shost, &pdev->dev);
if (error)
goto out_free_irq;
scsi_scan_host(shost);
return 0 ;
out_free_irq:
free_irq(pdev->irq, shost);
out_free_scbs:
kfree(host->scb);
out_release_region:
release_region(host->addr, 256 );
out_host_put:
scsi_host_put(shost);
out_disable_device:
pci_disable_device(pdev);
return error;
}
/**
* initio_remove_one - control shutdown
* @ pdev : PCI device being released
*
* Release the resources assigned to this adapter after it has
* finished being used .
*/
static void initio_remove_one(struct pci_dev *pdev)
{
struct Scsi_Host *host = pci_get_drvdata(pdev);
struct initio_host *s = (struct initio_host *)host->hostdata;
scsi_remove_host(host);
free_irq(pdev->irq, host);
release_region(s->addr, 256 );
scsi_host_put(host);
pci_disable_device(pdev);
}
MODULE_LICENSE("GPL" );
static const struct pci_device_id initio_pci_tbl[] = {
{PCI_VENDOR_ID_INIT, 0 x9500, PCI_ANY_ID, PCI_ANY_ID, 0 , 0 , 0 },
{PCI_VENDOR_ID_INIT, 0 x9400, PCI_ANY_ID, PCI_ANY_ID, 0 , 0 , 0 },
{PCI_VENDOR_ID_INIT, 0 x9401, PCI_ANY_ID, PCI_ANY_ID, 0 , 0 , 0 },
{PCI_VENDOR_ID_INIT, 0 x0002, PCI_ANY_ID, PCI_ANY_ID, 0 , 0 , 0 },
{PCI_VENDOR_ID_DOMEX, 0 x0002, PCI_ANY_ID, PCI_ANY_ID, 0 , 0 , 0 },
{0 ,}
};
MODULE_DEVICE_TABLE(pci, initio_pci_tbl);
static struct pci_driver initio_pci_driver = {
.name = "initio" ,
.id_table = initio_pci_tbl,
.probe = initio_probe_one,
.remove = initio_remove_one,
};
module_pci_driver(initio_pci_driver);
MODULE_DESCRIPTION("Initio INI-9X00U/UW SCSI device driver" );
MODULE_AUTHOR("Initio Corporation" );
MODULE_LICENSE("GPL" );
Messung V0.5 in Prozent C=88 H=90 G=88
¤ Dauer der Verarbeitung: 0.53 Sekunden
(vorverarbeitet am 2026-09-29)
¤
*© Formatika GbR, Deutschland
2026-10-10
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