/*======================================================================
NinjaSCSI - 3 / NinjaSCSI - 32 Bi PCMCIA SCSI host adapter card driver
By : YOKOTA Hiroshi < yokota @ netlab . is . tsukuba . ac . jp >
Ver . 2 . 8 Support 32 bit MMIO mode
Support Synchronous Data Transfer Request ( SDTR ) mode
Ver . 2 . 0 Support 32 bit PIO mode
Ver . 1 . 1 . 2 Fix for scatter list buffer exceeds
Ver . 1 . 1 Support scatter list
Ver . 0 . 1 Initial version
This software may be used and distributed according to the terms of
the GNU General Public License .
======================================================================*/
/***********************************************************************
This driver is for these PCcards .
I - O DATA PCSC - F ( Workbit NinjaSCSI - 3 )
" WBT " , " NinjaSCSI - 3 " , " R1 . 0 "
I - O DATA CBSC - II ( Workbit NinjaSCSI - 32 Bi in 16 bit mode )
" IO DATA " , " CBSC16 " , " 1 "
***********************************************************************/
#include <linux/module.h>
#include <linux/kernel.h>
#include <linux/init.h>
#include <linux/slab.h>
#include <linux/string.h>
#include <linux/timer.h>
#include <linux/ioport.h>
#include <linux/delay.h>
#include <linux/interrupt.h>
#include <linux/major.h>
#include <linux/blkdev.h>
#include <linux/stat.h>
#include <asm /io.h>
#include <asm /irq.h>
#include <scsi/scsi.h>
#include <scsi/scsi_cmnd.h>
#include <scsi/scsi_host.h>
#include <scsi/scsi_ioctl.h>
#include <pcmcia/cistpl.h>
#include <pcmcia/cisreg.h>
#include <pcmcia/ds.h>
#include "nsp_cs.h"
MODULE_AUTHOR("YOKOTA Hiroshi <yokota@netlab.is.tsukuba.ac.jp>" );
MODULE_DESCRIPTION("WorkBit NinjaSCSI-3 / NinjaSCSI-32Bi(16bit) PCMCIA SCSI host adapter module" );
MODULE_LICENSE("GPL" );
#include "nsp_io.h"
/*====================================================================*/
/* Parameters that can be set with 'insmod' */
static int nsp_burst_mode = BURST_MEM32;
module_param(nsp_burst_mode, int , 0 );
MODULE_PARM_DESC(nsp_burst_mode, "Burst transfer mode (0=io8, 1=io32, 2=mem32(default))" );
/* Release IO ports after configuration? */
static bool free_ports = 0 ;
module_param(free_ports, bool , 0 );
MODULE_PARM_DESC(free_ports, "Release IO ports after configuration? (default: 0 (=no))" );
static struct scsi_pointer *nsp_priv(struct scsi_cmnd *cmd)
{
return scsi_cmd_priv(cmd);
}
static struct scsi_host_template nsp_driver_template = {
.proc_name = "nsp_cs" ,
.show_info = nsp_show_info,
.name = "WorkBit NinjaSCSI-3/32Bi(16bit)" ,
.info = nsp_info,
.queuecommand = nsp_queuecommand,
/* .eh_abort_handler = nsp_eh_abort,*/
.eh_bus_reset_handler = nsp_eh_bus_reset,
.eh_host_reset_handler = nsp_eh_host_reset,
.can_queue = 1 ,
.this_id = NSP_INITIATOR_ID,
.sg_tablesize = SG_ALL,
.dma_boundary = PAGE_SIZE - 1 ,
.cmd_size = sizeof (struct scsi_pointer),
};
static nsp_hw_data nsp_data_base; /* attach <-> detect glue */
/*
* debug , error print
*/
#ifndef NSP_DEBUG
# define NSP_DEBUG_MASK 0 x000000
# define nsp_msg(type, args...) nsp_cs_message("" , 0 , (type), args)
# define nsp_dbg(mask, args...) /* */
#else
# define NSP_DEBUG_MASK 0 xffffff
# define nsp_msg(type, args...) \
nsp_cs_message (__func__, __LINE__, (type), args)
# define nsp_dbg(mask, args...) \
nsp_cs_dmessage(__func__, __LINE__, (mask), args)
#endif
#define NSP_DEBUG_QUEUECOMMAND BIT(0 )
#define NSP_DEBUG_REGISTER BIT(1 )
#define NSP_DEBUG_AUTOSCSI BIT(2 )
#define NSP_DEBUG_INTR BIT(3 )
#define NSP_DEBUG_SGLIST BIT(4 )
#define NSP_DEBUG_BUSFREE BIT(5 )
#define NSP_DEBUG_CDB_CONTENTS BIT(6 )
#define NSP_DEBUG_RESELECTION BIT(7 )
#define NSP_DEBUG_MSGINOCCUR BIT(8 )
#define NSP_DEBUG_EEPROM BIT(9 )
#define NSP_DEBUG_MSGOUTOCCUR BIT(10 )
#define NSP_DEBUG_BUSRESET BIT(11 )
#define NSP_DEBUG_RESTART BIT(12 )
#define NSP_DEBUG_SYNC BIT(13 )
#define NSP_DEBUG_WAIT BIT(14 )
#define NSP_DEBUG_TARGETFLAG BIT(15 )
#define NSP_DEBUG_PROC BIT(16 )
#define NSP_DEBUG_INIT BIT(17 )
#define NSP_DEBUG_DATA_IO BIT(18 )
#define NSP_SPECIAL_PRINT_REGISTER BIT(20 )
#define NSP_DEBUG_BUF_LEN 150
static inline void nsp_inc_resid(struct scsi_cmnd *SCpnt, int residInc)
{
scsi_set_resid(SCpnt, scsi_get_resid(SCpnt) + residInc);
}
__printf(4 , 5 )
static void nsp_cs_message(const char *func, int line, char *type, char *fmt, ...)
{
va_list args;
char buf[NSP_DEBUG_BUF_LEN];
va_start(args, fmt);
vsnprintf(buf, sizeof (buf), fmt, args);
va_end(args);
#ifndef NSP_DEBUG
printk("%snsp_cs: %s\n" , type, buf);
#else
printk("%snsp_cs: %s (%d): %s\n" , type, func, line, buf);
#endif
}
#ifdef NSP_DEBUG
static void nsp_cs_dmessage(const char *func, int line, int mask, char *fmt, ...)
{
va_list args;
char buf[NSP_DEBUG_BUF_LEN];
va_start(args, fmt);
vsnprintf(buf, sizeof (buf), fmt, args);
va_end(args);
if (mask & NSP_DEBUG_MASK) {
printk("nsp_cs-debug: 0x%x %s (%d): %s\n" , mask, func, line, buf);
}
}
#endif
/***********************************************************/
/*====================================================
* Clenaup parameters and call done ( ) functions .
* You must be set SCpnt - > result before call this function .
*/
static void nsp_scsi_done(struct scsi_cmnd *SCpnt)
{
nsp_hw_data *data = (nsp_hw_data *)SCpnt->device->host->hostdata;
data->CurrentSC = NULL;
scsi_done(SCpnt);
}
static int nsp_queuecommand_lck(struct scsi_cmnd *const SCpnt)
{
struct scsi_pointer *scsi_pointer = nsp_priv(SCpnt);
#ifdef NSP_DEBUG
/*unsigned int host_id = SCpnt->device->host->this_id;*/
/*unsigned int base = SCpnt->device->host->io_port;*/
unsigned char target = scmd_id(SCpnt);
#endif
nsp_hw_data *data = (nsp_hw_data *)SCpnt->device->host->hostdata;
nsp_dbg(NSP_DEBUG_QUEUECOMMAND,
"SCpnt=0x%p target=%d lun=%llu sglist=0x%p bufflen=%d sg_count=%d" ,
SCpnt, target, SCpnt->device->lun, scsi_sglist(SCpnt),
scsi_bufflen(SCpnt), scsi_sg_count(SCpnt));
//nsp_dbg(NSP_DEBUG_QUEUECOMMAND, "before CurrentSC=0x%p", data->CurrentSC);
if (data->CurrentSC != NULL) {
nsp_msg(KERN_DEBUG, "CurrentSC!=NULL this can't be happen" );
SCpnt->result = DID_BAD_TARGET << 16 ;
nsp_scsi_done(SCpnt);
return 0 ;
}
#if 0
/* XXX: pcmcia-cs generates SCSI command with "scsi_info" utility.
This makes kernel crash when suspending... */
if (data->ScsiInfo->stop != 0 ) {
nsp_msg(KERN_INFO, "suspending device. reject command." );
SCpnt->result = DID_BAD_TARGET << 16 ;
nsp_scsi_done(SCpnt);
return SCSI_MLQUEUE_HOST_BUSY;
}
#endif
show_command(SCpnt);
data->CurrentSC = SCpnt;
scsi_pointer->Status = SAM_STAT_CHECK_CONDITION;
scsi_pointer->Message = 0 ;
scsi_pointer->have_data_in = IO_UNKNOWN;
scsi_pointer->sent_command = 0 ;
scsi_pointer->phase = PH_UNDETERMINED;
scsi_set_resid(SCpnt, scsi_bufflen(SCpnt));
/* setup scratch area
SCp . ptr : buffer pointer
SCp . this_residual : buffer length
SCp . buffer : next buffer
SCp . buffers_residual : left buffers in list
SCp.phase : current state of the command */
if (scsi_bufflen(SCpnt)) {
scsi_pointer->buffer = scsi_sglist(SCpnt);
scsi_pointer->ptr = BUFFER_ADDR(SCpnt);
scsi_pointer->this_residual = scsi_pointer->buffer->length;
scsi_pointer->buffers_residual = scsi_sg_count(SCpnt) - 1 ;
} else {
scsi_pointer->ptr = NULL;
scsi_pointer->this_residual = 0 ;
scsi_pointer->buffer = NULL;
scsi_pointer->buffers_residual = 0 ;
}
if (!nsphw_start_selection(SCpnt)) {
nsp_dbg(NSP_DEBUG_QUEUECOMMAND, "selection fail" );
SCpnt->result = DID_BUS_BUSY << 16 ;
nsp_scsi_done(SCpnt);
return 0 ;
}
//nsp_dbg(NSP_DEBUG_QUEUECOMMAND, "out");
#ifdef NSP_DEBUG
data->CmdId++;
#endif
return 0 ;
}
static DEF_SCSI_QCMD(nsp_queuecommand)
/*
* setup PIO FIFO transfer mode and enable / disable to data out
*/
static void nsp_setup_fifo(nsp_hw_data *data, bool enabled)
{
unsigned int base = data->BaseAddress;
unsigned char transfer_mode_reg;
//nsp_dbg(NSP_DEBUG_DATA_IO, "enabled=%d", enabled);
if (enabled) {
transfer_mode_reg = TRANSFER_GO | BRAIND;
} else {
transfer_mode_reg = 0 ;
}
transfer_mode_reg |= data->TransferMode;
nsp_index_write(base, TRANSFERMODE, transfer_mode_reg);
}
static void nsphw_init_sync(nsp_hw_data *data)
{
sync_data tmp_sync = { .SyncNegotiation = SYNC_NOT_YET,
.SyncPeriod = 0 ,
.SyncOffset = 0
};
int i;
/* setup sync data */
for ( i = 0 ; i < ARRAY_SIZE(data->Sync); i++ ) {
data->Sync[i] = tmp_sync;
}
}
/*
* Initialize Ninja hardware
*/
static void nsphw_init(nsp_hw_data *data)
{
unsigned int base = data->BaseAddress;
nsp_dbg(NSP_DEBUG_INIT, "in base=0x%x" , base);
data->ScsiClockDiv = CLOCK_40M | FAST_20;
data->CurrentSC = NULL;
data->FifoCount = 0 ;
data->TransferMode = MODE_IO8;
nsphw_init_sync(data);
/* block all interrupts */
nsp_write(base, IRQCONTROL, IRQCONTROL_ALLMASK);
/* setup SCSI interface */
nsp_write(base, IFSELECT, IF_IFSEL);
nsp_index_write(base, SCSIIRQMODE, 0 );
nsp_index_write(base, TRANSFERMODE, MODE_IO8);
nsp_index_write(base, CLOCKDIV, data->ScsiClockDiv);
nsp_index_write(base, PARITYCTRL, 0 );
nsp_index_write(base, POINTERCLR, POINTER_CLEAR |
ACK_COUNTER_CLEAR |
REQ_COUNTER_CLEAR |
HOST_COUNTER_CLEAR);
/* setup fifo asic */
nsp_write(base, IFSELECT, IF_REGSEL);
nsp_index_write(base, TERMPWRCTRL, 0 );
if ((nsp_index_read(base, OTHERCONTROL) & TPWR_SENSE) == 0 ) {
nsp_msg(KERN_INFO, "terminator power on" );
nsp_index_write(base, TERMPWRCTRL, POWER_ON);
}
nsp_index_write(base, TIMERCOUNT, 0 );
nsp_index_write(base, TIMERCOUNT, 0 ); /* requires 2 times!! */
nsp_index_write(base, SYNCREG, 0 );
nsp_index_write(base, ACKWIDTH, 0 );
/* enable interrupts and ack them */
nsp_index_write(base, SCSIIRQMODE, SCSI_PHASE_CHANGE_EI |
RESELECT_EI |
SCSI_RESET_IRQ_EI );
nsp_write(base, IRQCONTROL, IRQCONTROL_ALLCLEAR);
nsp_setup_fifo(data, false );
}
/*
* Start selection phase
*/
static bool nsphw_start_selection(struct scsi_cmnd *const SCpnt)
{
struct scsi_pointer *scsi_pointer = nsp_priv(SCpnt);
unsigned int host_id = SCpnt->device->host->this_id;
unsigned int base = SCpnt->device->host->io_port;
unsigned char target = scmd_id(SCpnt);
nsp_hw_data *data = (nsp_hw_data *)SCpnt->device->host->hostdata;
int time_out;
unsigned char phase, arbit;
//nsp_dbg(NSP_DEBUG_RESELECTION, "in");
phase = nsp_index_read(base, SCSIBUSMON);
if (phase != BUSMON_BUS_FREE) {
//nsp_dbg(NSP_DEBUG_RESELECTION, "bus busy");
return false ;
}
/* start arbitration */
//nsp_dbg(NSP_DEBUG_RESELECTION, "start arbit");
scsi_pointer->phase = PH_ARBSTART;
nsp_index_write(base, SETARBIT, ARBIT_GO);
time_out = 1000 ;
do {
/* XXX: what a stupid chip! */
arbit = nsp_index_read(base, ARBITSTATUS);
//nsp_dbg(NSP_DEBUG_RESELECTION, "arbit=%d, wait_count=%d", arbit, wait_count);
udelay(1 ); /* hold 1.2us */
} while ((arbit & (ARBIT_WIN | ARBIT_FAIL)) == 0 &&
(time_out-- != 0 ));
if (!(arbit & ARBIT_WIN)) {
//nsp_dbg(NSP_DEBUG_RESELECTION, "arbit fail");
nsp_index_write(base, SETARBIT, ARBIT_FLAG_CLEAR);
return false ;
}
/* assert select line */
//nsp_dbg(NSP_DEBUG_RESELECTION, "assert SEL line");
scsi_pointer->phase = PH_SELSTART;
udelay(3 ); /* wait 2.4us */
nsp_index_write(base, SCSIDATALATCH, BIT(host_id) | BIT(target));
nsp_index_write(base, SCSIBUSCTRL, SCSI_SEL | SCSI_BSY | SCSI_ATN);
udelay(2 ); /* wait >1.2us */
nsp_index_write(base, SCSIBUSCTRL, SCSI_SEL | SCSI_BSY | SCSI_DATAOUT_ENB | SCSI_ATN);
nsp_index_write(base, SETARBIT, ARBIT_FLAG_CLEAR);
/*udelay(1);*/ /* wait >90ns */
nsp_index_write(base, SCSIBUSCTRL, SCSI_SEL | SCSI_DATAOUT_ENB | SCSI_ATN);
/* check selection timeout */
nsp_start_timer(SCpnt, 1000 /51 );
data->SelectionTimeOut = 1 ;
return true ;
}
struct nsp_sync_table {
unsigned int min_period;
unsigned int max_period;
unsigned int chip_period;
unsigned int ack_width;
};
static struct nsp_sync_table nsp_sync_table_40M[] = {
{0 x0c, 0 x0c, 0 x1, 0 }, /* 20MB 50ns*/
{0 x19, 0 x19, 0 x3, 1 }, /* 10MB 100ns*/
{0 x1a, 0 x25, 0 x5, 2 }, /* 7.5MB 150ns*/
{0 x26, 0 x32, 0 x7, 3 }, /* 5MB 200ns*/
{ 0 , 0 , 0 , 0 },
};
static struct nsp_sync_table nsp_sync_table_20M[] = {
{0 x19, 0 x19, 0 x1, 0 }, /* 10MB 100ns*/
{0 x1a, 0 x25, 0 x2, 0 }, /* 7.5MB 150ns*/
{0 x26, 0 x32, 0 x3, 1 }, /* 5MB 200ns*/
{ 0 , 0 , 0 , 0 },
};
/*
* setup synchronous data transfer mode
*/
static int nsp_analyze_sdtr(struct scsi_cmnd *SCpnt)
{
unsigned char target = scmd_id(SCpnt);
// unsigned char lun = SCpnt->device->lun;
nsp_hw_data *data = (nsp_hw_data *)SCpnt->device->host->hostdata;
sync_data *sync = &(data->Sync[target]);
struct nsp_sync_table *sync_table;
unsigned int period, offset;
nsp_dbg(NSP_DEBUG_SYNC, "in" );
period = sync->SyncPeriod;
offset = sync->SyncOffset;
nsp_dbg(NSP_DEBUG_SYNC, "period=0x%x, offset=0x%x" , period, offset);
if ((data->ScsiClockDiv & (BIT(0 )|BIT(1 ))) == CLOCK_20M) {
sync_table = nsp_sync_table_20M;
} else {
sync_table = nsp_sync_table_40M;
}
for (; sync_table->max_period != 0 ; sync_table++) {
if ( period >= sync_table->min_period &&
period <= sync_table->max_period ) {
break ;
}
}
if (period != 0 && sync_table->max_period == 0 ) {
/*
* No proper period / offset found
*/
nsp_dbg(NSP_DEBUG_SYNC, "no proper period/offset" );
sync->SyncPeriod = 0 ;
sync->SyncOffset = 0 ;
sync->SyncRegister = 0 ;
sync->AckWidth = 0 ;
return false ;
}
sync->SyncRegister = (sync_table->chip_period << SYNCREG_PERIOD_SHIFT) |
(offset & SYNCREG_OFFSET_MASK);
sync->AckWidth = sync_table->ack_width;
nsp_dbg(NSP_DEBUG_SYNC, "sync_reg=0x%x, ack_width=0x%x" , sync->SyncRegister, sync->AckWidth);
return true ;
}
/*
* start ninja hardware timer
*/
static void nsp_start_timer(struct scsi_cmnd *SCpnt, int time)
{
unsigned int base = SCpnt->device->host->io_port;
nsp_hw_data *data = (nsp_hw_data *)SCpnt->device->host->hostdata;
//nsp_dbg(NSP_DEBUG_INTR, "in SCpnt=0x%p, time=%d", SCpnt, time);
data->TimerCount = time;
nsp_index_write(base, TIMERCOUNT, time);
}
/*
* wait for bus phase change
*/
static int nsp_negate_signal(struct scsi_cmnd *SCpnt, unsigned char mask,
char *str)
{
unsigned int base = SCpnt->device->host->io_port;
unsigned char reg;
int time_out;
//nsp_dbg(NSP_DEBUG_INTR, "in");
time_out = 100 ;
do {
reg = nsp_index_read(base, SCSIBUSMON);
if (reg == 0 xff) {
break ;
}
} while ((--time_out != 0 ) && (reg & mask) != 0 );
if (time_out == 0 ) {
nsp_msg(KERN_DEBUG, " %s signal off timeout" , str);
}
return 0 ;
}
/*
* expect Ninja Irq
*/
static int nsp_expect_signal(struct scsi_cmnd *SCpnt,
unsigned char current_phase,
unsigned char mask)
{
unsigned int base = SCpnt->device->host->io_port;
int time_out;
unsigned char phase, i_src;
//nsp_dbg(NSP_DEBUG_INTR, "current_phase=0x%x, mask=0x%x", current_phase, mask);
time_out = 100 ;
do {
phase = nsp_index_read(base, SCSIBUSMON);
if (phase == 0 xff) {
//nsp_dbg(NSP_DEBUG_INTR, "ret -1");
return -1 ;
}
i_src = nsp_read(base, IRQSTATUS);
if (i_src & IRQSTATUS_SCSI) {
//nsp_dbg(NSP_DEBUG_INTR, "ret 0 found scsi signal");
return 0 ;
}
if ((phase & mask) != 0 && (phase & BUSMON_PHASE_MASK) == current_phase) {
//nsp_dbg(NSP_DEBUG_INTR, "ret 1 phase=0x%x", phase);
return 1 ;
}
} while (time_out-- != 0 );
//nsp_dbg(NSP_DEBUG_INTR, "timeout");
return -1 ;
}
/*
* transfer SCSI message
*/
static int nsp_xfer(struct scsi_cmnd *const SCpnt, int phase)
{
struct scsi_pointer *scsi_pointer = nsp_priv(SCpnt);
unsigned int base = SCpnt->device->host->io_port;
nsp_hw_data *data = (nsp_hw_data *)SCpnt->device->host->hostdata;
char *buf = data->MsgBuffer;
int len = min(MSGBUF_SIZE, data->MsgLen);
int ptr;
int ret;
//nsp_dbg(NSP_DEBUG_DATA_IO, "in");
for (ptr = 0 ; len > 0 ; len--, ptr++) {
ret = nsp_expect_signal(SCpnt, phase, BUSMON_REQ);
if (ret <= 0 ) {
nsp_dbg(NSP_DEBUG_DATA_IO, "xfer quit" );
return 0 ;
}
/* if last byte, negate ATN */
if (len == 1 && scsi_pointer->phase == PH_MSG_OUT) {
nsp_index_write(base, SCSIBUSCTRL, AUTODIRECTION | ACKENB);
}
/* read & write message */
if (phase & BUSMON_IO) {
nsp_dbg(NSP_DEBUG_DATA_IO, "read msg" );
buf[ptr] = nsp_index_read(base, SCSIDATAWITHACK);
} else {
nsp_dbg(NSP_DEBUG_DATA_IO, "write msg" );
nsp_index_write(base, SCSIDATAWITHACK, buf[ptr]);
}
nsp_negate_signal(SCpnt, BUSMON_ACK, "xfer<ack>" );
}
return len;
}
/*
* get extra SCSI data from fifo
*/
static int nsp_dataphase_bypass(struct scsi_cmnd *const SCpnt)
{
struct scsi_pointer *scsi_pointer = nsp_priv(SCpnt);
nsp_hw_data *data = (nsp_hw_data *)SCpnt->device->host->hostdata;
unsigned int count;
//nsp_dbg(NSP_DEBUG_DATA_IO, "in");
if (scsi_pointer->have_data_in != IO_IN) {
return 0 ;
}
count = nsp_fifo_count(SCpnt);
if (data->FifoCount == count) {
//nsp_dbg(NSP_DEBUG_DATA_IO, "not use bypass quirk");
return 0 ;
}
/*
* XXX : NSP_QUIRK
* data phase skip only occures in case of SCSI_LOW_READ
*/
nsp_dbg(NSP_DEBUG_DATA_IO, "use bypass quirk" );
scsi_pointer->phase = PH_DATA;
nsp_pio_read(SCpnt);
nsp_setup_fifo(data, false );
return 0 ;
}
/*
* accept reselection
*/
static void nsp_reselected(struct scsi_cmnd *SCpnt)
{
unsigned int base = SCpnt->device->host->io_port;
unsigned int host_id = SCpnt->device->host->this_id;
//nsp_hw_data *data = (nsp_hw_data *)SCpnt->device->host->hostdata;
unsigned char bus_reg;
unsigned char id_reg, tmp;
int target;
nsp_dbg(NSP_DEBUG_RESELECTION, "in" );
id_reg = nsp_index_read(base, RESELECTID);
tmp = id_reg & (~BIT(host_id));
target = 0 ;
while (tmp != 0 ) {
if (tmp & BIT(0 )) {
break ;
}
tmp >>= 1 ;
target++;
}
if (scmd_id(SCpnt) != target) {
nsp_msg(KERN_ERR, "XXX: reselect ID must be %d in this implementation." , target);
}
nsp_negate_signal(SCpnt, BUSMON_SEL, "reselect<SEL>" );
nsp_nexus(SCpnt);
bus_reg = nsp_index_read(base, SCSIBUSCTRL) & ~(SCSI_BSY | SCSI_ATN);
nsp_index_write(base, SCSIBUSCTRL, bus_reg);
nsp_index_write(base, SCSIBUSCTRL, bus_reg | AUTODIRECTION | ACKENB);
}
/*
* count how many data transferd
*/
static int nsp_fifo_count(struct scsi_cmnd *SCpnt)
{
unsigned int base = SCpnt->device->host->io_port;
unsigned int count;
unsigned int l, m, h;
nsp_index_write(base, POINTERCLR, POINTER_CLEAR | ACK_COUNTER);
l = nsp_index_read(base, TRANSFERCOUNT);
m = nsp_index_read(base, TRANSFERCOUNT);
h = nsp_index_read(base, TRANSFERCOUNT);
nsp_index_read(base, TRANSFERCOUNT); /* required this! */
count = (h << 16 ) | (m << 8 ) | (l << 0 );
//nsp_dbg(NSP_DEBUG_DATA_IO, "count=0x%x", count);
return count;
}
/* fifo size */
#define RFIFO_CRIT 64
#define WFIFO_CRIT 64
/*
* read data in DATA IN phase
*/
static void nsp_pio_read(struct scsi_cmnd *const SCpnt)
{
struct scsi_pointer *scsi_pointer = nsp_priv(SCpnt);
unsigned int base = SCpnt->device->host->io_port;
unsigned long mmio_base = SCpnt->device->host->base;
nsp_hw_data *data = (nsp_hw_data *)SCpnt->device->host->hostdata;
long time_out;
int ocount, res;
unsigned char stat, fifo_stat;
ocount = data->FifoCount;
nsp_dbg(NSP_DEBUG_DATA_IO, "in SCpnt=0x%p resid=%d ocount=%d ptr=0x%p this_residual=%d buffers=0x%p nbuf=%d" ,
SCpnt, scsi_get_resid(SCpnt), ocount, scsi_pointer->ptr,
scsi_pointer->this_residual, scsi_pointer->buffer,
scsi_pointer->buffers_residual);
time_out = 1000 ;
while ((time_out-- != 0 ) &&
(scsi_pointer->this_residual > 0 ||
scsi_pointer->buffers_residual > 0 )) {
stat = nsp_index_read(base, SCSIBUSMON);
stat &= BUSMON_PHASE_MASK;
res = nsp_fifo_count(SCpnt) - ocount;
//nsp_dbg(NSP_DEBUG_DATA_IO, "ptr=0x%p this=0x%x ocount=0x%x res=0x%x", scsi_pointer->ptr, scsi_pointer->this_residual, ocount, res);
if (res == 0 ) { /* if some data available ? */
if (stat == BUSPHASE_DATA_IN) { /* phase changed? */
//nsp_dbg(NSP_DEBUG_DATA_IO, " wait for data this=%d", scsi_pointer->this_residual);
continue ;
} else {
nsp_dbg(NSP_DEBUG_DATA_IO, "phase changed stat=0x%x" , stat);
break ;
}
}
fifo_stat = nsp_read(base, FIFOSTATUS);
if ((fifo_stat & FIFOSTATUS_FULL_EMPTY) == 0 &&
stat == BUSPHASE_DATA_IN) {
continue ;
}
res = min(res, scsi_pointer->this_residual);
switch (data->TransferMode) {
case MODE_IO32:
res &= ~(BIT(1 )|BIT(0 )); /* align 4 */
nsp_fifo32_read(base, scsi_pointer->ptr, res >> 2 );
break ;
case MODE_IO8:
nsp_fifo8_read(base, scsi_pointer->ptr, res);
break ;
case MODE_MEM32:
res &= ~(BIT(1 )|BIT(0 )); /* align 4 */
nsp_mmio_fifo32_read(mmio_base, scsi_pointer->ptr,
res >> 2 );
break ;
default :
nsp_dbg(NSP_DEBUG_DATA_IO, "unknown read mode" );
return ;
}
nsp_inc_resid(SCpnt, -res);
scsi_pointer->ptr += res;
scsi_pointer->this_residual -= res;
ocount += res;
//nsp_dbg(NSP_DEBUG_DATA_IO, "ptr=0x%p this_residual=0x%x ocount=0x%x", scsi_pointer->ptr, scsi_pointer->this_residual, ocount);
/* go to next scatter list if available */
if (scsi_pointer->this_residual == 0 &&
scsi_pointer->buffers_residual != 0 ) {
//nsp_dbg(NSP_DEBUG_DATA_IO, "scatterlist next timeout=%d", time_out);
scsi_pointer->buffers_residual--;
scsi_pointer->buffer = sg_next(scsi_pointer->buffer);
scsi_pointer->ptr = BUFFER_ADDR(SCpnt);
scsi_pointer->this_residual =
scsi_pointer->buffer->length;
time_out = 1000 ;
//nsp_dbg(NSP_DEBUG_DATA_IO, "page: 0x%p, off: 0x%x", scsi_pointer->buffer->page, scsi_pointer->buffer->offset);
}
}
data->FifoCount = ocount;
if (time_out < 0 ) {
nsp_msg(KERN_DEBUG, "pio read timeout resid=%d this_residual=%d buffers_residual=%d" ,
scsi_get_resid(SCpnt), scsi_pointer->this_residual,
scsi_pointer->buffers_residual);
}
nsp_dbg(NSP_DEBUG_DATA_IO, "read ocount=0x%x" , ocount);
nsp_dbg(NSP_DEBUG_DATA_IO, "r cmd=%d resid=0x%x\n" , data->CmdId,
scsi_get_resid(SCpnt));
}
/*
* write data in DATA OUT phase
*/
static void nsp_pio_write(struct scsi_cmnd *SCpnt)
{
struct scsi_pointer *scsi_pointer = nsp_priv(SCpnt);
unsigned int base = SCpnt->device->host->io_port;
unsigned long mmio_base = SCpnt->device->host->base;
nsp_hw_data *data = (nsp_hw_data *)SCpnt->device->host->hostdata;
int time_out;
int ocount, res;
unsigned char stat;
ocount = data->FifoCount;
nsp_dbg(NSP_DEBUG_DATA_IO, "in fifocount=%d ptr=0x%p this_residual=%d buffers=0x%p nbuf=%d resid=0x%x" ,
data->FifoCount, scsi_pointer->ptr, scsi_pointer->this_residual,
scsi_pointer->buffer, scsi_pointer->buffers_residual,
scsi_get_resid(SCpnt));
time_out = 1000 ;
while ((time_out-- != 0 ) &&
(scsi_pointer->this_residual > 0 ||
scsi_pointer->buffers_residual > 0 )) {
stat = nsp_index_read(base, SCSIBUSMON);
stat &= BUSMON_PHASE_MASK;
if (stat != BUSPHASE_DATA_OUT) {
res = ocount - nsp_fifo_count(SCpnt);
nsp_dbg(NSP_DEBUG_DATA_IO, "phase changed stat=0x%x, res=%d\n" , stat, res);
/* Put back pointer */
nsp_inc_resid(SCpnt, res);
scsi_pointer->ptr -= res;
scsi_pointer->this_residual += res;
ocount -= res;
break ;
}
res = ocount - nsp_fifo_count(SCpnt);
if (res > 0 ) { /* write all data? */
nsp_dbg(NSP_DEBUG_DATA_IO, "wait for all data out. ocount=0x%x res=%d" , ocount, res);
continue ;
}
res = min(scsi_pointer->this_residual, WFIFO_CRIT);
//nsp_dbg(NSP_DEBUG_DATA_IO, "ptr=0x%p this=0x%x res=0x%x", scsi_pointer->ptr, scsi_pointer->this_residual, res);
switch (data->TransferMode) {
case MODE_IO32:
res &= ~(BIT(1 )|BIT(0 )); /* align 4 */
nsp_fifo32_write(base, scsi_pointer->ptr, res >> 2 );
break ;
case MODE_IO8:
nsp_fifo8_write(base, scsi_pointer->ptr, res);
break ;
case MODE_MEM32:
res &= ~(BIT(1 )|BIT(0 )); /* align 4 */
nsp_mmio_fifo32_write(mmio_base, scsi_pointer->ptr,
res >> 2 );
break ;
default :
nsp_dbg(NSP_DEBUG_DATA_IO, "unknown write mode" );
break ;
}
nsp_inc_resid(SCpnt, -res);
scsi_pointer->ptr += res;
scsi_pointer->this_residual -= res;
ocount += res;
/* go to next scatter list if available */
if (scsi_pointer->this_residual == 0 &&
scsi_pointer->buffers_residual != 0 ) {
//nsp_dbg(NSP_DEBUG_DATA_IO, "scatterlist next");
scsi_pointer->buffers_residual--;
scsi_pointer->buffer = sg_next(scsi_pointer->buffer);
scsi_pointer->ptr = BUFFER_ADDR(SCpnt);
scsi_pointer->this_residual =
scsi_pointer->buffer->length;
time_out = 1000 ;
}
}
data->FifoCount = ocount;
if (time_out < 0 ) {
nsp_msg(KERN_DEBUG, "pio write timeout resid=0x%x" ,
scsi_get_resid(SCpnt));
}
nsp_dbg(NSP_DEBUG_DATA_IO, "write ocount=0x%x" , ocount);
nsp_dbg(NSP_DEBUG_DATA_IO, "w cmd=%d resid=0x%x\n" , data->CmdId,
scsi_get_resid(SCpnt));
}
#undef RFIFO_CRIT
#undef WFIFO_CRIT
/*
* setup synchronous / asynchronous data transfer mode
*/
static int nsp_nexus(struct scsi_cmnd *SCpnt)
{
unsigned int base = SCpnt->device->host->io_port;
unsigned char target = scmd_id(SCpnt);
// unsigned char lun = SCpnt->device->lun;
nsp_hw_data *data = (nsp_hw_data *)SCpnt->device->host->hostdata;
sync_data *sync = &(data->Sync[target]);
//nsp_dbg(NSP_DEBUG_DATA_IO, "in SCpnt=0x%p", SCpnt);
/* setup synch transfer registers */
nsp_index_write(base, SYNCREG, sync->SyncRegister);
nsp_index_write(base, ACKWIDTH, sync->AckWidth);
if (scsi_get_resid(SCpnt) % 4 != 0 ||
scsi_get_resid(SCpnt) <= PAGE_SIZE ) {
data->TransferMode = MODE_IO8;
} else if (nsp_burst_mode == BURST_MEM32) {
data->TransferMode = MODE_MEM32;
} else if (nsp_burst_mode == BURST_IO32) {
data->TransferMode = MODE_IO32;
} else {
data->TransferMode = MODE_IO8;
}
/* setup pdma fifo */
nsp_setup_fifo(data, true );
/* clear ack counter */
data->FifoCount = 0 ;
nsp_index_write(base, POINTERCLR, POINTER_CLEAR |
ACK_COUNTER_CLEAR |
REQ_COUNTER_CLEAR |
HOST_COUNTER_CLEAR);
return 0 ;
}
#include "nsp_message.c"
/*
* interrupt handler
*/
static irqreturn_t nspintr(int irq, void *dev_id)
{
unsigned int base;
unsigned char irq_status, irq_phase, phase;
struct scsi_cmnd *tmpSC;
struct scsi_pointer *scsi_pointer;
unsigned char target, lun;
unsigned int *sync_neg;
int i, tmp;
nsp_hw_data *data;
//nsp_dbg(NSP_DEBUG_INTR, "dev_id=0x%p", dev_id);
//nsp_dbg(NSP_DEBUG_INTR, "host=0x%p", ((scsi_info_t *)dev_id)->host);
if ( dev_id != NULL &&
((scsi_info_t *)dev_id)->host != NULL ) {
scsi_info_t *info = (scsi_info_t *)dev_id;
data = (nsp_hw_data *)info->host->hostdata;
} else {
nsp_dbg(NSP_DEBUG_INTR, "host data wrong" );
return IRQ_NONE;
}
//nsp_dbg(NSP_DEBUG_INTR, "&nsp_data_base=0x%p, dev_id=0x%p", &nsp_data_base, dev_id);
base = data->BaseAddress;
//nsp_dbg(NSP_DEBUG_INTR, "base=0x%x", base);
/*
* interrupt check
*/
nsp_write(base, IRQCONTROL, IRQCONTROL_IRQDISABLE);
irq_status = nsp_read(base, IRQSTATUS);
//nsp_dbg(NSP_DEBUG_INTR, "irq_status=0x%x", irq_status);
if ((irq_status == 0 xff) || ((irq_status & IRQSTATUS_MASK) == 0 )) {
nsp_write(base, IRQCONTROL, 0 );
//nsp_dbg(NSP_DEBUG_INTR, "no irq/shared irq");
return IRQ_NONE;
}
/* XXX: IMPORTANT
* Do not read an irq_phase register if no scsi phase interrupt .
* Unless , you should lose a scsi phase interrupt .
*/
phase = nsp_index_read(base, SCSIBUSMON);
if ((irq_status & IRQSTATUS_SCSI) != 0 ) {
irq_phase = nsp_index_read(base, IRQPHASESENCE);
} else {
irq_phase = 0 ;
}
//nsp_dbg(NSP_DEBUG_INTR, "irq_phase=0x%x", irq_phase);
/*
* timer interrupt handler ( scsi vs timer interrupts )
*/
//nsp_dbg(NSP_DEBUG_INTR, "timercount=%d", data->TimerCount);
if (data->TimerCount != 0 ) {
//nsp_dbg(NSP_DEBUG_INTR, "stop timer");
nsp_index_write(base, TIMERCOUNT, 0 );
nsp_index_write(base, TIMERCOUNT, 0 );
data->TimerCount = 0 ;
}
if ((irq_status & IRQSTATUS_MASK) == IRQSTATUS_TIMER &&
data->SelectionTimeOut == 0 ) {
//nsp_dbg(NSP_DEBUG_INTR, "timer start");
nsp_write(base, IRQCONTROL, IRQCONTROL_TIMER_CLEAR);
return IRQ_HANDLED;
}
nsp_write(base, IRQCONTROL, IRQCONTROL_TIMER_CLEAR | IRQCONTROL_FIFO_CLEAR);
if ((irq_status & IRQSTATUS_SCSI) &&
(irq_phase & SCSI_RESET_IRQ)) {
nsp_msg(KERN_ERR, "bus reset (power off?)" );
nsphw_init(data);
nsp_bus_reset(data);
if (data->CurrentSC != NULL) {
tmpSC = data->CurrentSC;
scsi_pointer = nsp_priv(tmpSC);
tmpSC->result = (DID_RESET << 16 ) |
((scsi_pointer->Message & 0 xff) << 8 ) |
((scsi_pointer->Status & 0 xff) << 0 );
nsp_scsi_done(tmpSC);
}
return IRQ_HANDLED;
}
if (data->CurrentSC == NULL) {
nsp_msg(KERN_ERR, "CurrentSC==NULL irq_status=0x%x phase=0x%x irq_phase=0x%x this can't be happen. reset everything" , irq_status, phase, irq_phase);
nsphw_init(data);
nsp_bus_reset(data);
return IRQ_HANDLED;
}
tmpSC = data->CurrentSC;
scsi_pointer = nsp_priv(tmpSC);
target = tmpSC->device->id;
lun = tmpSC->device->lun;
sync_neg = &(data->Sync[target].SyncNegotiation);
/*
* parse hardware SCSI irq reasons register
*/
if (irq_status & IRQSTATUS_SCSI) {
if (irq_phase & RESELECT_IRQ) {
nsp_dbg(NSP_DEBUG_INTR, "reselect" );
nsp_write(base, IRQCONTROL, IRQCONTROL_RESELECT_CLEAR);
nsp_reselected(tmpSC);
return IRQ_HANDLED;
}
if ((irq_phase & (PHASE_CHANGE_IRQ | LATCHED_BUS_FREE)) == 0 ) {
return IRQ_HANDLED;
}
}
//show_phase(tmpSC);
switch (scsi_pointer->phase) {
case PH_SELSTART:
// *sync_neg = SYNC_NOT_YET;
if ((phase & BUSMON_BSY) == 0 ) {
//nsp_dbg(NSP_DEBUG_INTR, "selection count=%d", data->SelectionTimeOut);
if (data->SelectionTimeOut >= NSP_SELTIMEOUT) {
nsp_dbg(NSP_DEBUG_INTR, "selection time out" );
data->SelectionTimeOut = 0 ;
nsp_index_write(base, SCSIBUSCTRL, 0 );
tmpSC->result = DID_TIME_OUT << 16 ;
nsp_scsi_done(tmpSC);
return IRQ_HANDLED;
}
data->SelectionTimeOut += 1 ;
nsp_start_timer(tmpSC, 1000 /51 );
return IRQ_HANDLED;
}
/* attention assert */
//nsp_dbg(NSP_DEBUG_INTR, "attention assert");
data->SelectionTimeOut = 0 ;
scsi_pointer->phase = PH_SELECTED;
nsp_index_write(base, SCSIBUSCTRL, SCSI_ATN);
udelay(1 );
nsp_index_write(base, SCSIBUSCTRL, SCSI_ATN | AUTODIRECTION | ACKENB);
return IRQ_HANDLED;
case PH_RESELECT:
//nsp_dbg(NSP_DEBUG_INTR, "phase reselect");
// *sync_neg = SYNC_NOT_YET;
if ((phase & BUSMON_PHASE_MASK) != BUSPHASE_MESSAGE_IN) {
tmpSC->result = DID_ABORT << 16 ;
nsp_scsi_done(tmpSC);
return IRQ_HANDLED;
}
fallthrough;
default :
if ((irq_status & (IRQSTATUS_SCSI | IRQSTATUS_FIFO)) == 0 ) {
return IRQ_HANDLED;
}
break ;
}
/*
* SCSI sequencer
*/
//nsp_dbg(NSP_DEBUG_INTR, "start scsi seq");
/* normal disconnect */
if ((scsi_pointer->phase == PH_MSG_IN ||
scsi_pointer->phase == PH_MSG_OUT) &&
(irq_phase & LATCHED_BUS_FREE) != 0 ) {
nsp_dbg(NSP_DEBUG_INTR, "normal disconnect irq_status=0x%x, phase=0x%x, irq_phase=0x%x" , irq_status, phase, irq_phase);
//*sync_neg = SYNC_NOT_YET;
/* all command complete and return status */
if (scsi_pointer->Message == COMMAND_COMPLETE) {
tmpSC->result = (DID_OK << 16 ) |
((scsi_pointer->Message & 0 xff) << 8 ) |
((scsi_pointer->Status & 0 xff) << 0 );
nsp_dbg(NSP_DEBUG_INTR, "command complete result=0x%x" , tmpSC->result);
nsp_scsi_done(tmpSC);
return IRQ_HANDLED;
}
return IRQ_HANDLED;
}
/* check unexpected bus free state */
if (phase == 0 ) {
nsp_msg(KERN_DEBUG, "unexpected bus free. irq_status=0x%x, phase=0x%x, irq_phase=0x%x" , irq_status, phase, irq_phase);
*sync_neg = SYNC_NG;
tmpSC->result = DID_ERROR << 16 ;
nsp_scsi_done(tmpSC);
return IRQ_HANDLED;
}
switch (phase & BUSMON_PHASE_MASK) {
case BUSPHASE_COMMAND:
nsp_dbg(NSP_DEBUG_INTR, "BUSPHASE_COMMAND" );
if ((phase & BUSMON_REQ) == 0 ) {
nsp_dbg(NSP_DEBUG_INTR, "REQ == 0" );
return IRQ_HANDLED;
}
scsi_pointer->phase = PH_COMMAND;
nsp_nexus(tmpSC);
/* write scsi command */
nsp_dbg(NSP_DEBUG_INTR, "cmd_len=%d" , tmpSC->cmd_len);
nsp_index_write(base, COMMANDCTRL, CLEAR_COMMAND_POINTER);
for (i = 0 ; i < tmpSC->cmd_len; i++) {
nsp_index_write(base, COMMANDDATA, tmpSC->cmnd[i]);
}
nsp_index_write(base, COMMANDCTRL, CLEAR_COMMAND_POINTER | AUTO_COMMAND_GO);
break ;
case BUSPHASE_DATA_OUT:
nsp_dbg(NSP_DEBUG_INTR, "BUSPHASE_DATA_OUT" );
scsi_pointer->phase = PH_DATA;
scsi_pointer->have_data_in = IO_OUT;
nsp_pio_write(tmpSC);
break ;
case BUSPHASE_DATA_IN:
nsp_dbg(NSP_DEBUG_INTR, "BUSPHASE_DATA_IN" );
scsi_pointer->phase = PH_DATA;
scsi_pointer->have_data_in = IO_IN;
nsp_pio_read(tmpSC);
break ;
case BUSPHASE_STATUS:
nsp_dataphase_bypass(tmpSC);
nsp_dbg(NSP_DEBUG_INTR, "BUSPHASE_STATUS" );
scsi_pointer->phase = PH_STATUS;
scsi_pointer->Status = nsp_index_read(base, SCSIDATAWITHACK);
nsp_dbg(NSP_DEBUG_INTR, "message=0x%x status=0x%x" ,
scsi_pointer->Message, scsi_pointer->Status);
break ;
case BUSPHASE_MESSAGE_OUT:
nsp_dbg(NSP_DEBUG_INTR, "BUSPHASE_MESSAGE_OUT" );
if ((phase & BUSMON_REQ) == 0 ) {
goto timer_out;
}
scsi_pointer->phase = PH_MSG_OUT;
//*sync_neg = SYNC_NOT_YET;
data->MsgLen = i = 0 ;
data->MsgBuffer[i] = IDENTIFY(true , lun); i++;
if (*sync_neg == SYNC_NOT_YET) {
data->Sync[target].SyncPeriod = 0 ;
data->Sync[target].SyncOffset = 0 ;
/**/
data->MsgBuffer[i] = EXTENDED_MESSAGE; i++;
data->MsgBuffer[i] = 3 ; i++;
data->MsgBuffer[i] = EXTENDED_SDTR; i++;
data->MsgBuffer[i] = 0 x0c; i++;
data->MsgBuffer[i] = 15 ; i++;
/**/
}
data->MsgLen = i;
nsp_analyze_sdtr(tmpSC);
show_message(data);
nsp_message_out(tmpSC);
break ;
case BUSPHASE_MESSAGE_IN:
nsp_dataphase_bypass(tmpSC);
nsp_dbg(NSP_DEBUG_INTR, "BUSPHASE_MESSAGE_IN" );
if ((phase & BUSMON_REQ) == 0 ) {
goto timer_out;
}
scsi_pointer->phase = PH_MSG_IN;
nsp_message_in(tmpSC);
/**/
if (*sync_neg == SYNC_NOT_YET) {
//nsp_dbg(NSP_DEBUG_INTR, "sync target=%d,lun=%d",target,lun);
if (data->MsgLen >= 5 &&
data->MsgBuffer[0 ] == EXTENDED_MESSAGE &&
data->MsgBuffer[1 ] == 3 &&
data->MsgBuffer[2 ] == EXTENDED_SDTR ) {
data->Sync[target].SyncPeriod = data->MsgBuffer[3 ];
data->Sync[target].SyncOffset = data->MsgBuffer[4 ];
//nsp_dbg(NSP_DEBUG_INTR, "sync ok, %d %d", data->MsgBuffer[3], data->MsgBuffer[4]);
*sync_neg = SYNC_OK;
} else {
data->Sync[target].SyncPeriod = 0 ;
data->Sync[target].SyncOffset = 0 ;
*sync_neg = SYNC_NG;
}
nsp_analyze_sdtr(tmpSC);
}
/**/
/* search last messeage byte */
tmp = -1 ;
for (i = 0 ; i < data->MsgLen; i++) {
tmp = data->MsgBuffer[i];
if (data->MsgBuffer[i] == EXTENDED_MESSAGE) {
i += (1 + data->MsgBuffer[i+1 ]);
}
}
scsi_pointer->Message = tmp;
nsp_dbg(NSP_DEBUG_INTR, "message=0x%x len=%d" ,
scsi_pointer->Message, data->MsgLen);
show_message(data);
break ;
case BUSPHASE_SELECT:
default :
nsp_dbg(NSP_DEBUG_INTR, "BUSPHASE other" );
break ;
}
//nsp_dbg(NSP_DEBUG_INTR, "out");
return IRQ_HANDLED;
timer_out:
nsp_start_timer(tmpSC, 1000 /102 );
return IRQ_HANDLED;
}
#ifdef NSP_DEBUG
#include "nsp_debug.c"
#endif /* NSP_DEBUG */
/*----------------------------------------------------------------*/
/* look for ninja3 card and init if found */
/*----------------------------------------------------------------*/
static struct Scsi_Host *nsp_detect(struct scsi_host_template *sht)
{
struct Scsi_Host *host; /* registered host structure */
nsp_hw_data *data_b = &nsp_data_base, *data;
nsp_dbg(NSP_DEBUG_INIT, "this_id=%d" , sht->this_id);
host = scsi_host_alloc(&nsp_driver_template, sizeof (nsp_hw_data));
if (host == NULL) {
nsp_dbg(NSP_DEBUG_INIT, "host failed" );
return NULL;
}
memcpy(host->hostdata, data_b, sizeof (nsp_hw_data));
data = (nsp_hw_data *)host->hostdata;
data->ScsiInfo->host = host;
#ifdef NSP_DEBUG
data->CmdId = 0 ;
#endif
nsp_dbg(NSP_DEBUG_INIT, "irq=%d,%d" , data_b->IrqNumber, ((nsp_hw_data *)host->hostdata)->IrqNumber);
host->unique_id = data->BaseAddress;
host->io_port = data->BaseAddress;
host->n_io_port = data->NumAddress;
host->irq = data->IrqNumber;
host->base = data->MmioAddress;
spin_lock_init(&(data->Lock));
snprintf(data->nspinfo,
sizeof (data->nspinfo),
"NinjaSCSI-3/32Bi Driver $Revision: 1.23 $ IO:0x%04lx-0x%04lx MMIO(virt addr):0x%04lx IRQ:%02d" ,
host->io_port, host->io_port + host->n_io_port - 1 ,
host->base,
host->irq);
sht->name = data->nspinfo;
nsp_dbg(NSP_DEBUG_INIT, "end" );
return host; /* detect done. */
}
/*----------------------------------------------------------------*/
/* return info string */
/*----------------------------------------------------------------*/
static const char *nsp_info(struct Scsi_Host *shpnt)
{
nsp_hw_data *data = (nsp_hw_data *)shpnt->hostdata;
return data->nspinfo;
}
static int nsp_show_info(struct seq_file *m, struct Scsi_Host *host)
{
int id;
int speed;
unsigned long flags;
nsp_hw_data *data;
int hostno;
hostno = host->host_no;
data = (nsp_hw_data *)host->hostdata;
seq_puts(m, "NinjaSCSI status\n\n"
"Driver version: $Revision: 1.23 $\n" );
seq_printf(m, "SCSI host No.: %d\n" , hostno);
seq_printf(m, "IRQ: %d\n" , host->irq);
seq_printf(m, "IO: 0x%lx-0x%lx\n" , host->io_port, host->io_port + host->n_io_port - 1 );
seq_printf(m, "MMIO(virtual address): 0x%lx-0x%lx\n" , host->base, host->base + data->MmioLength - 1 );
seq_printf(m, "sg_tablesize: %d\n" , host->sg_tablesize);
seq_puts(m, "burst transfer mode: " );
switch (nsp_burst_mode) {
case BURST_IO8:
seq_puts(m, "io8" );
break ;
case BURST_IO32:
seq_puts(m, "io32" );
break ;
case BURST_MEM32:
seq_puts(m, "mem32" );
break ;
default :
seq_puts(m, "???" );
break ;
}
seq_putc(m, '\n' );
spin_lock_irqsave(&(data->Lock), flags);
seq_printf(m, "CurrentSC: 0x%p\n\n" , data->CurrentSC);
spin_unlock_irqrestore(&(data->Lock), flags);
seq_puts(m, "SDTR status\n" );
for (id = 0 ; id < ARRAY_SIZE(data->Sync); id++) {
seq_printf(m, "id %d: " , id);
if (id == host->this_id) {
seq_puts(m, "----- NinjaSCSI-3 host adapter\n" );
continue ;
}
switch (data->Sync[id].SyncNegotiation) {
case SYNC_OK:
seq_puts(m, " sync" );
break ;
case SYNC_NG:
seq_puts(m, "async" );
break ;
case SYNC_NOT_YET:
seq_puts(m, " none" );
break ;
default :
seq_puts(m, "?????" );
break ;
}
if (data->Sync[id].SyncPeriod != 0 ) {
speed = 1000000 / (data->Sync[id].SyncPeriod * 4 );
seq_printf(m, " transfer %d.%dMB/s, offset %d" ,
speed / 1000 ,
speed % 1000 ,
data->Sync[id].SyncOffset
);
}
seq_putc(m, '\n' );
}
return 0 ;
}
/*---------------------------------------------------------------*/
/* error handler */
/*---------------------------------------------------------------*/
/*
static int nsp_eh_abort ( struct scsi_cmnd * SCpnt )
{
nsp_dbg ( NSP_DEBUG_BUSRESET , " SCpnt = 0 x % p " , SCpnt ) ;
return nsp_eh_bus_reset ( SCpnt ) ;
}*/
static int nsp_bus_reset(nsp_hw_data *data)
{
unsigned int base = data->BaseAddress;
int i;
nsp_write(base, IRQCONTROL, IRQCONTROL_ALLMASK);
nsp_index_write(base, SCSIBUSCTRL, SCSI_RST);
mdelay(100 ); /* 100ms */
nsp_index_write(base, SCSIBUSCTRL, 0 );
for (i = 0 ; i < 5 ; i++) {
nsp_index_read(base, IRQPHASESENCE); /* dummy read */
}
nsphw_init_sync(data);
nsp_write(base, IRQCONTROL, IRQCONTROL_ALLCLEAR);
return SUCCESS;
}
static int nsp_eh_bus_reset(struct scsi_cmnd *SCpnt)
{
nsp_hw_data *data = (nsp_hw_data *)SCpnt->device->host->hostdata;
nsp_dbg(NSP_DEBUG_BUSRESET, "SCpnt=0x%p" , SCpnt);
return nsp_bus_reset(data);
}
static int nsp_eh_host_reset(struct scsi_cmnd *SCpnt)
{
nsp_hw_data *data = (nsp_hw_data *)SCpnt->device->host->hostdata;
nsp_dbg(NSP_DEBUG_BUSRESET, "in" );
nsphw_init(data);
return SUCCESS;
}
/**********************************************************************
PCMCIA functions
**********************************************************************/
static int nsp_cs_probe(struct pcmcia_device *link)
{
scsi_info_t *info;
nsp_hw_data *data = &nsp_data_base;
int ret;
nsp_dbg(NSP_DEBUG_INIT, "in" );
/* Create new SCSI device */
info = kzalloc(sizeof (*info), GFP_KERNEL);
if (info == NULL) { return -ENOMEM; }
info->p_dev = link;
link->priv = info;
data->ScsiInfo = info;
nsp_dbg(NSP_DEBUG_INIT, "info=0x%p" , info);
ret = nsp_cs_config(link);
nsp_dbg(NSP_DEBUG_INIT, "link=0x%p" , link);
return ret;
} /* nsp_cs_attach */
static void nsp_cs_detach(struct pcmcia_device *link)
{
nsp_dbg(NSP_DEBUG_INIT, "in, link=0x%p" , link);
((scsi_info_t *)link->priv)->stop = 1 ;
nsp_cs_release(link);
kfree(link->priv);
link->priv = NULL;
} /* nsp_cs_detach */
static int nsp_cs_config_check(struct pcmcia_device *p_dev, void *priv_data)
{
nsp_hw_data *data = priv_data;
if (p_dev->config_index == 0 )
return -ENODEV;
/* This reserves IO space but doesn't actually enable it */
if (pcmcia_request_io(p_dev) != 0 )
goto next_entry;
if (resource_size(p_dev->resource[2 ])) {
p_dev->resource[2 ]->flags |= (WIN_DATA_WIDTH_16 |
WIN_MEMORY_TYPE_CM |
WIN_ENABLE);
if (p_dev->resource[2 ]->end < 0 x1000)
p_dev->resource[2 ]->end = 0 x1000;
if (pcmcia_request_window(p_dev, p_dev->resource[2 ], 0 ) != 0 )
goto next_entry;
if (pcmcia_map_mem_page(p_dev, p_dev->resource[2 ],
p_dev->card_addr) != 0 )
goto next_entry;
data->MmioAddress = (unsigned long )
ioremap(p_dev->resource[2 ]->start,
resource_size(p_dev->resource[2 ]));
if (!data->MmioAddress)
goto next_entry;
data->MmioLength = resource_size(p_dev->resource[2 ]);
}
/* If we got this far, we're cool! */
return 0 ;
next_entry:
nsp_dbg(NSP_DEBUG_INIT, "next" );
pcmcia_disable_device(p_dev);
return -ENODEV;
}
static int nsp_cs_config(struct pcmcia_device *link)
{
int ret;
scsi_info_t *info = link->priv;
struct Scsi_Host *host;
nsp_hw_data *data = &nsp_data_base;
nsp_dbg(NSP_DEBUG_INIT, "in" );
link->config_flags |= CONF_ENABLE_IRQ | CONF_AUTO_CHECK_VCC |
CONF_AUTO_SET_VPP | CONF_AUTO_AUDIO | CONF_AUTO_SET_IOMEM |
CONF_AUTO_SET_IO;
ret = pcmcia_loop_config(link, nsp_cs_config_check, data);
if (ret)
goto cs_failed;
if (pcmcia_request_irq(link, nspintr))
goto cs_failed;
ret = pcmcia_enable_device(link);
if (ret)
goto cs_failed;
if (free_ports) {
if (link->resource[0 ]) {
release_region(link->resource[0 ]->start,
resource_size(link->resource[0 ]));
}
if (link->resource[1 ]) {
release_region(link->resource[1 ]->start,
resource_size(link->resource[1 ]));
}
}
/* Set port and IRQ */
data->BaseAddress = link->resource[0 ]->start;
data->NumAddress = resource_size(link->resource[0 ]);
data->IrqNumber = link->irq;
nsp_dbg(NSP_DEBUG_INIT, "I/O[0x%x+0x%x] IRQ %d" ,
data->BaseAddress, data->NumAddress, data->IrqNumber);
nsphw_init(data);
host = nsp_detect(&nsp_driver_template);
if (host == NULL) {
nsp_dbg(NSP_DEBUG_INIT, "detect failed" );
goto cs_failed;
}
ret = scsi_add_host (host, NULL);
if (ret)
goto cs_failed;
scsi_scan_host(host);
info->host = host;
return 0 ;
cs_failed:
nsp_dbg(NSP_DEBUG_INIT, "config fail" );
nsp_cs_release(link);
return -ENODEV;
} /* nsp_cs_config */
static void nsp_cs_release(struct pcmcia_device *link)
{
scsi_info_t *info = link->priv;
nsp_hw_data *data = NULL;
if (info->host == NULL) {
nsp_msg(KERN_DEBUG, "unexpected card release call." );
} else {
data = (nsp_hw_data *)info->host->hostdata;
}
nsp_dbg(NSP_DEBUG_INIT, "link=0x%p" , link);
/* Unlink the device chain */
if (info->host != NULL) {
scsi_remove_host(info->host);
}
if (resource_size(link->resource[2 ])) {
if (data != NULL) {
iounmap((void *)(data->MmioAddress));
}
}
pcmcia_disable_device(link);
if (info->host != NULL) {
scsi_host_put(info->host);
}
} /* nsp_cs_release */
static int nsp_cs_suspend(struct pcmcia_device *link)
{
scsi_info_t *info = link->priv;
nsp_hw_data *data;
nsp_dbg(NSP_DEBUG_INIT, "event: suspend" );
if (info->host != NULL) {
nsp_msg(KERN_INFO, "clear SDTR status" );
data = (nsp_hw_data *)info->host->hostdata;
nsphw_init_sync(data);
}
info->stop = 1 ;
return 0 ;
}
static int nsp_cs_resume(struct pcmcia_device *link)
{
scsi_info_t *info = link->priv;
nsp_hw_data *data;
nsp_dbg(NSP_DEBUG_INIT, "event: resume" );
info->stop = 0 ;
if (info->host != NULL) {
nsp_msg(KERN_INFO, "reset host and bus" );
data = (nsp_hw_data *)info->host->hostdata;
nsphw_init (data);
nsp_bus_reset(data);
}
return 0 ;
}
/*======================================================================*
* module entry point
*====================================================================*/
static const struct pcmcia_device_id nsp_cs_ids[] = {
PCMCIA_DEVICE_PROD_ID123("IO DATA" , "CBSC16 " , "1" , 0 x547e66dc, 0 x0d63a3fd, 0 x51de003a),
PCMCIA_DEVICE_PROD_ID123("KME " , "SCSI-CARD-001" , "1" , 0 x534c02bc, 0 x52008408, 0 x51de003a),
PCMCIA_DEVICE_PROD_ID123("KME " , "SCSI-CARD-002" , "1" , 0 x534c02bc, 0 xcb09d5b2, 0 x51de003a),
PCMCIA_DEVICE_PROD_ID123("KME " , "SCSI-CARD-003" , "1" , 0 x534c02bc, 0 xbc0ee524, 0 x51de003a),
PCMCIA_DEVICE_PROD_ID123("KME " , "SCSI-CARD-004" , "1" , 0 x534c02bc, 0 x226a7087, 0 x51de003a),
PCMCIA_DEVICE_PROD_ID123("WBT" , "NinjaSCSI-3" , "R1.0" , 0 xc7ba805f, 0 xfdc7c97d, 0 x6973710e),
PCMCIA_DEVICE_PROD_ID123("WORKBIT" , "UltraNinja-16" , "1" , 0 x28191418, 0 xb70f4b09, 0 x51de003a),
PCMCIA_DEVICE_NULL
};
MODULE_DEVICE_TABLE(pcmcia, nsp_cs_ids);
static struct pcmcia_driver nsp_driver = {
.owner = THIS_MODULE,
.name = "nsp_cs" ,
.probe = nsp_cs_probe,
.remove = nsp_cs_detach,
.id_table = nsp_cs_ids,
.suspend = nsp_cs_suspend,
.resume = nsp_cs_resume,
};
module_pcmcia_driver(nsp_driver);
/* end */
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