Adding upstream version 6.1.76.upstream/6.1.76

Signed-off-by: Daniel Baumann <daniel.baumann@progress-linux.org>

1 files changed, 1760 insertions, 0 deletions

diff --git a/drivers/scsi/pcmcia/nsp_cs.c b/drivers/scsi/pcmcia/nsp_cs.c
new file mode 100644
index 000000000..48acab03a
--- /dev/null
+++ b/drivers/scsi/pcmcia/nsp_cs.c
@@ -0,0 +1,1760 @@
+/*======================================================================
+
+    NinjaSCSI-3 / NinjaSCSI-32Bi PCMCIA SCSI host adapter card driver
+      By: YOKOTA Hiroshi <yokota@netlab.is.tsukuba.ac.jp>
+
+    Ver.2.8   Support 32bit MMIO mode
+              Support Synchronous Data Transfer Request (SDTR) mode
+    Ver.2.0   Support 32bit 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-32Bi in 16bit 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		0x000000
+# define nsp_msg(type, args...) nsp_cs_message("", 0, (type), args)
+# define nsp_dbg(mask, args...) /* */
+#else
+# define NSP_DEBUG_MASK		0xffffff
+# 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[] = {
+	{0x0c, 0x0c, 0x1, 0},	/* 20MB	  50ns*/
+	{0x19, 0x19, 0x3, 1},	/* 10MB	 100ns*/ 
+	{0x1a, 0x25, 0x5, 2},	/* 7.5MB 150ns*/ 
+	{0x26, 0x32, 0x7, 3},	/* 5MB	 200ns*/
+	{   0,    0,   0, 0},
+};
+
+static struct nsp_sync_table nsp_sync_table_20M[] = {
+	{0x19, 0x19, 0x1, 0},	/* 10MB	 100ns*/ 
+	{0x1a, 0x25, 0x2, 0},	/* 7.5MB 150ns*/ 
+	{0x26, 0x32, 0x3, 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;
+	int		       i;
+
+
+	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 ( i = 0; sync_table->max_period != 0; i++, 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 == 0xff) {
+			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 == 0xff) {
+			//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 == 0xff) || ((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 & 0xff) <<  8) |
+				((scsi_pointer->Status  & 0xff) <<  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 & 0xff) <<  8) |
+				((scsi_pointer->Status  & 0xff) <<  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] = 0x0c;         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=0x%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 < 0x1000)
+			p_dev->resource[2]->end = 0x1000;
+		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", 0x547e66dc, 0x0d63a3fd, 0x51de003a),
+	PCMCIA_DEVICE_PROD_ID123("KME    ", "SCSI-CARD-001", "1", 0x534c02bc, 0x52008408, 0x51de003a),
+	PCMCIA_DEVICE_PROD_ID123("KME    ", "SCSI-CARD-002", "1", 0x534c02bc, 0xcb09d5b2, 0x51de003a),
+	PCMCIA_DEVICE_PROD_ID123("KME    ", "SCSI-CARD-003", "1", 0x534c02bc, 0xbc0ee524, 0x51de003a),
+	PCMCIA_DEVICE_PROD_ID123("KME    ", "SCSI-CARD-004", "1", 0x534c02bc, 0x226a7087, 0x51de003a),
+	PCMCIA_DEVICE_PROD_ID123("WBT", "NinjaSCSI-3", "R1.0", 0xc7ba805f, 0xfdc7c97d, 0x6973710e),
+	PCMCIA_DEVICE_PROD_ID123("WORKBIT", "UltraNinja-16", "1", 0x28191418, 0xb70f4b09, 0x51de003a),
+	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 */