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Release 4.11 drivers/scsi/pcmcia/nsp_cs.c

/*======================================================================

    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 <../drivers/scsi/scsi.h>
#include <scsi/scsi_host.h>

#include <scsi/scsi.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_SUPPORTED_DEVICE("sd,sr,sg,st");
#ifdef MODULE_LICENSE
MODULE_LICENSE("GPL");
#endif

#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_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,
	.use_clustering		 = DISABLE_CLUSTERING,
};


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); }

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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 }

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#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); } }

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#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; SCpnt->scsi_done(SCpnt); }

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Linus Torvalds3895.00%150.00%
Henrik Kretzschmar25.00%150.00%
Total40100.00%2100.00%


static int nsp_queuecommand_lck(struct scsi_cmnd *SCpnt, void (*done)(struct scsi_cmnd *)) { #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); SCpnt->scsi_done = done; 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; SCpnt->SCp.Status = CHECK_CONDITION; SCpnt->SCp.Message = 0; SCpnt->SCp.have_data_in = IO_UNKNOWN; SCpnt->SCp.sent_command = 0; SCpnt->SCp.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)) { SCpnt->SCp.buffer = scsi_sglist(SCpnt); SCpnt->SCp.ptr = BUFFER_ADDR; SCpnt->SCp.this_residual = SCpnt->SCp.buffer->length; SCpnt->SCp.buffers_residual = scsi_sg_count(SCpnt) - 1; } else { SCpnt->SCp.ptr = NULL; SCpnt->SCp.this_residual = 0; SCpnt->SCp.buffer = NULL; SCpnt->SCp.buffers_residual = 0; } if (nsphw_start_selection(SCpnt) == FALSE) { 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; }

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Alan Cox72.10%19.09%
Jeff Garzik41.20%218.18%
Henrik Kretzschmar41.20%19.09%
Jens Axboe20.60%19.09%
Hannes Reinecke10.30%19.09%
Total333100.00%11100.00%

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, int enabled) { unsigned int base = data->BaseAddress; unsigned char transfer_mode_reg; //nsp_dbg(NSP_DEBUG_DATA_IO, "enabled=%d", enabled); if (enabled != FALSE) { 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; } }

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Alan Cox3758.73%116.67%
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Yokota Hiroshi57.94%116.67%
Randy Dunlap11.59%116.67%
Jeff Garzik11.59%116.67%
Total63100.00%6100.00%

/* * Initialize Ninja hardware */
static int 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); return TRUE; }

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/* * Start selection phase */
static int nsphw_start_selection(struct scsi_cmnd *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"); SCpnt->SCp.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"); SCpnt->SCp.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; }

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Henrik Kretzschmar20.69%114.29%
Total290100.00%7100.00%

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; }

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Jeff Garzik31.15%116.67%
Henrik Kretzschmar20.77%116.67%
Total260100.00%6100.00%

/* * 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); }

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/* * 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; }

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Mike Anderson21.96%114.29%
Roel Kluin10.98%114.29%
Masanari Iida10.98%114.29%
Total102100.00%7100.00%

/* * 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; }

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Henrik Kretzschmar21.56%120.00%
Total128100.00%5100.00%

/* * transfer SCSI message */
static int nsp_xfer(struct scsi_cmnd *SCpnt, int phase) { 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 && SCpnt->SCp.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; }

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Randy Dunlap10.49%116.67%
Total206100.00%6100.00%

/* * get extra SCSI data from fifo */
static int nsp_dataphase_bypass(struct scsi_cmnd *SCpnt) { nsp_hw_data *data = (nsp_hw_data *)SCpnt->device->host->hostdata; unsigned int count; //nsp_dbg(NSP_DEBUG_DATA_IO, "in"); if (SCpnt->SCp.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"); SCpnt->SCp.phase = PH_DATA; nsp_pio_read(SCpnt); nsp_setup_fifo(data, FALSE); return 0; }

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/* * accept reselection */
static int 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); return TRUE; }

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Henrik Kretzschmar21.09%116.67%
Total183100.00%6100.00%

/* * 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, dummy; 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); dummy = 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; }

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Mike Anderson21.83%120.00%
Total109100.00%5100.00%

/* fifo size */ #define RFIFO_CRIT 64 #define WFIFO_CRIT 64 /* * read data in DATA IN phase */
static void nsp_pio_read(struct scsi_cmnd *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, SCpnt->SCp.ptr, SCpnt->SCp.this_residual, SCpnt->SCp.buffer, SCpnt->SCp.buffers_residual); time_out = 1000; while ((time_out-- != 0) && (SCpnt->SCp.this_residual > 0 || SCpnt->SCp.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", SCpnt->SCp.ptr, SCpnt->SCp.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", SCpnt->SCp.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, SCpnt->SCp.this_residual); switch (data->TransferMode) { case MODE_IO32: res &= ~(BIT(1)|BIT(0)); /* align 4 */ nsp_fifo32_read(base, SCpnt->SCp.ptr, res >> 2); break; case MODE_IO8: nsp_fifo8_read (base, SCpnt->SCp.ptr, res ); break; case MODE_MEM32: res &= ~(BIT(1)|BIT(0)); /* align 4 */ nsp_mmio_fifo32_read(mmio_base, SCpnt->SCp.ptr, res >> 2); break; default: nsp_dbg(NSP_DEBUG_DATA_IO, "unknown read mode"); return; } nsp_inc_resid(SCpnt, -res); SCpnt->SCp.ptr += res; SCpnt->SCp.this_residual -= res; ocount += res; //nsp_dbg(NSP_DEBUG_DATA_IO, "ptr=0x%p this_residual=0x%x ocount=0x%x", SCpnt->SCp.ptr, SCpnt->SCp.this_residual, ocount); /* go to next scatter list if available */ if (SCpnt->SCp.this_residual == 0 && SCpnt->SCp.buffers_residual != 0 ) { //nsp_dbg(NSP_DEBUG_DATA_IO, "scatterlist next timeout=%d", time_out); SCpnt->SCp.buffers_residual--; SCpnt->SCp.buffer++; SCpnt->SCp.ptr = BUFFER_ADDR; SCpnt->SCp.this_residual = SCpnt->SCp.buffer->length; time_out = 1000; //nsp_dbg(NSP_DEBUG_DATA_IO, "page: 0x%p, off: 0x%x", SCpnt->SCp.buffer->page, SCpnt->SCp.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), SCpnt->SCp.this_residual, SCpnt->SCp.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)); }

Contributors

PersonTokensPropCommitsCommitProp
Linus Torvalds40581.33%330.00%
Alan Cox7014.06%110.00%
Boaz Harrosh142.81%110.00%
Mike Anderson40.80%110.00%
Henrik Kretzschmar20.40%110.00%
Roel Kluin10.20%110.00%
Randy Dunlap10.20%110.00%
Lucas De Marchi10.20%110.00%
Total498100.00%10100.00%

/* * write data in DATA OUT phase */
static void nsp_pio_write(struct scsi_cmnd *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, SCpnt->SCp.ptr, SCpnt->SCp.this_residual, SCpnt->SCp.buffer, SCpnt->SCp.buffers_residual, scsi_get_resid(SCpnt)); time_out = 1000; while ((time_out-- != 0) && (SCpnt->SCp.this_residual > 0 || SCpnt->SCp.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); SCpnt->SCp.ptr -= res; SCpnt->SCp.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(SCpnt->SCp.this_residual, WFIFO_CRIT); //nsp_dbg(NSP_DEBUG_DATA_IO, "ptr=0x%p this=0x%x res=0x%x", SCpnt->SCp.ptr, SCpnt->SCp.this_residual, res); switch (data->TransferMode) { case MODE_IO32: res &= ~(BIT(1)|BIT(0)); /* align 4 */ nsp_fifo32_write(base, SCpnt->SCp.ptr, res >> 2); break; case MODE_IO8: nsp_fifo8_write (base, SCpnt->SCp.ptr, res ); break; case MODE_MEM32: res &= ~(BIT(1)|BIT(0)); /* align 4 */ nsp_mmio_fifo32_write(mmio_base, SCpnt->SCp.ptr, res >> 2); break; default: nsp_dbg(NSP_DEBUG_DATA_IO, "unknown write mode"); break; } nsp_inc_resid(SCpnt, -res); SCpnt->SCp.ptr += res; SCpnt->SCp.this_residual -= res; ocount += res; /* go to next scatter list if available */ if (SCpnt->SCp.this_residual == 0 && SCpnt->SCp.buffers_residual != 0 ) { //nsp_dbg(NSP_DEBUG_DATA_IO, "scatterlist next"); SCpnt->SCp.buffers_residual--; SCpnt->SCp.buffer++; SCpnt->SCp.ptr = BUFFER_ADDR; SCpnt->SCp.this_residual = SCpnt->SCp.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)); }

Contributors

PersonTokensPropCommitsCommitProp
Linus Torvalds37775.25%333.33%
Alan Cox9819.56%111.11%
Boaz Harrosh183.59%111.11%
Mike Anderson40.80%111.11%
Henrik Kretzschmar20.40%111.11%
Roel Kluin10.20%111.11%
Randy Dunlap10.20%111.11%
Total501100.00%9100.00%

#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; }

Contributors

PersonTokensPropCommitsCommitProp
Linus Torvalds13975.14%337.50%
Alan Cox3317.84%112.50%
Boaz Harrosh63.24%112.50%
Jeff Garzik31.62%112.50%
Mike Anderson21.08%112.50%
Henrik Kretzschmar21.08%112.50%
Total185100.00%8100.00%

#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; 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; tmpSC->result = (DID_RESET << 16) | ((tmpSC->SCp.Message & 0xff) << 8) | ((tmpSC->SCp.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; 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); if (nsp_reselected(tmpSC) != FALSE) { return IRQ_HANDLED; } } if ((irq_phase & (PHASE_CHANGE_IRQ | LATCHED_BUS_FREE)) == 0) { return IRQ_HANDLED; } } //show_phase(tmpSC); switch(tmpSC->SCp.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; tmpSC->SCp.phase = PH_SELECTED; nsp_index_write(base, SCSIBUSCTRL, SCSI_ATN); udelay(1); nsp_index_write(base, SCSIBUSCTRL, SCSI_ATN | AUTODIRECTION | ACKENB); return IRQ_HANDLED; break; 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; } /* fall thru */ 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 (((tmpSC->SCp.phase == PH_MSG_IN) || (tmpSC->SCp.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; if ((tmpSC->SCp.Message == MSG_COMMAND_COMPLETE)) { /* all command complete and return status */ tmpSC->result = (DID_OK << 16) | ((tmpSC->SCp.Message & 0xff) << 8) | ((tmpSC->SCp.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; } tmpSC->SCp.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"); tmpSC->SCp.phase = PH_DATA; tmpSC->SCp.have_data_in = IO_OUT; nsp_pio_write(tmpSC); break; case BUSPHASE_DATA_IN: nsp_dbg(NSP_DEBUG_INTR, "BUSPHASE_DATA_IN"); tmpSC->SCp.phase = PH_DATA; tmpSC->SCp.have_data_in = IO_IN; nsp_pio_read(tmpSC); break; case BUSPHASE_STATUS: nsp_dataphase_bypass(tmpSC); nsp_dbg(NSP_DEBUG_INTR, "BUSPHASE_STATUS"); tmpSC->SCp.phase = PH_STATUS; tmpSC->SCp.Status = nsp_index_read(base, SCSIDATAWITHACK); nsp_dbg(NSP_DEBUG_INTR, "message=0x%x status=0x%x", tmpSC->SCp.Message, tmpSC->SCp.Status); break; case BUSPHASE_MESSAGE_OUT: nsp_dbg(NSP_DEBUG_INTR, "BUSPHASE_MESSAGE_OUT"); if ((phase & BUSMON_REQ) == 0) { goto timer_out; } tmpSC->SCp.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] = MSG_EXTENDED; i++; data->MsgBuffer[i] = 3; i++; data->MsgBuffer[i] = MSG_EXT_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; } tmpSC->SCp.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] == MSG_EXTENDED && data->MsgBuffer[1] == 3 && data->MsgBuffer[2] == MSG_EXT_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] == MSG_EXTENDED) { i += (1 + data->MsgBuffer[i+1]); } } tmpSC->SCp.Message = tmp; nsp_dbg(NSP_DEBUG_INTR, "message=0x%x len=%d", tmpSC->SCp.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; }

Contributors

PersonTokensPropCommitsCommitProp
Linus Torvalds126680.08%360.00%
Alan Cox31319.80%120.00%
Henrik Kretzschmar20.13%120.00%
Total1581100.00%5100.00%

#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. */ }

Contributors

PersonTokensPropCommitsCommitProp
Linus Torvalds18877.05%342.86%
Alan Cox3915.98%114.29%
Christoph Hellwig93.69%228.57%
Rusty Russell83.28%114.29%
Total244100.00%7100.00%

/*----------------------------------------------------------------*/ /* return info string */ /*----------------------------------------------------------------*/
static const char *nsp_info(struct Scsi_Host *shpnt) { nsp_hw_data *data = (nsp_hw_data *)shpnt->hostdata; return data->nspinfo; }

Contributors

PersonTokensPropCommitsCommitProp
Alan Cox1550.00%125.00%
Linus Torvalds1550.00%375.00%
Total30100.00%4100.00%


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; }

Contributors

PersonTokensPropCommitsCommitProp
Alan Cox22856.72%110.00%
Linus Torvalds9724.13%330.00%
Rasmus Villemoes6816.92%330.00%
Al Viro61.49%110.00%
Christoph Hellwig20.50%110.00%
Randy Dunlap10.25%110.00%
Total402100.00%10100.00%

/*---------------------------------------------------------------*/ /* 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; }

Contributors

PersonTokensPropCommitsCommitProp
Alan Cox8085.11%150.00%
Linus Torvalds1414.89%150.00%
Total94100.00%2100.00%


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); }

Contributors

PersonTokensPropCommitsCommitProp
Linus Torvalds3480.95%133.33%
Alan Cox614.29%133.33%
Henrik Kretzschmar24.76%133.33%
Total42100.00%3100.00%


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; }

Contributors

PersonTokensPropCommitsCommitProp
Alan Cox2252.38%120.00%
Linus Torvalds1842.86%360.00%
Henrik Kretzschmar24.76%120.00%
Total42100.00%5100.00%

/********************************************************************** 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; }

Contributors

PersonTokensPropCommitsCommitProp
Linus Torvalds8480.77%333.33%
Dominik Brodowski1817.31%444.44%
Yoann Padioleau10.96%111.11%
Alan Cox10.96%111.11%
Total104100.00%9100.00%

/* 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; }

Contributors

PersonTokensPropCommitsCommitProp
Linus Torvalds2955.77%350.00%
Dominik Brodowski1630.77%233.33%
Alan Cox713.46%116.67%
Total52100.00%6100.00%

/* 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_nocache(p_dev->resource[2]->start, resource_size(p_dev->resource[2])); 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; }

Contributors

PersonTokensPropCommitsCommitProp
Dominik Brodowski11152.61%857.14%
Linus Torvalds5023.70%321.43%
Andrew Morton3114.69%17.14%
Alan Cox178.06%17.14%
Magnus Damm20.95%17.14%
Total211100.00%14100.00%


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); if(nsphw_init(data) == FALSE) { goto cs_failed; } 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; }

Contributors

PersonTokensPropCommitsCommitProp
Linus Torvalds14545.89%320.00%
Dominik Brodowski14445.57%960.00%
Alan Cox185.70%16.67%
Andrew Morton51.58%16.67%
Dan Carpenter41.27%16.67%
Total316100.00%15100.00%

/* 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); } }

Contributors

PersonTokensPropCommitsCommitProp
Linus Torvalds10272.34%333.33%
Christoph Hellwig1611.35%222.22%
Alan Cox139.22%111.11%
Dominik Brodowski107.09%333.33%
Total141100.00%9100.00%

/* 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; }

Contributors

PersonTokensPropCommitsCommitProp
Linus Torvalds6487.67%350.00%
Dominik Brodowski810.96%233.33%
Alan Cox11.37%116.67%
Total73100.00%6100.00%


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; }

Contributors

PersonTokensPropCommitsCommitProp
Linus Torvalds4355.13%233.33%
Dominik Brodowski2633.33%233.33%
Alan Cox810.26%116.67%
Mike Anderson11.28%116.67%
Total78100.00%6100.00%

/*======================================================================* * 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, };
static int __init nsp_cs_init(void) { return pcmcia_register_driver(&nsp_driver); }

Contributors

PersonTokensPropCommitsCommitProp
Linus Torvalds1487.50%266.67%
Christoph Hellwig212.50%133.33%
Total16100.00%3100.00%


static void __exit nsp_cs_exit(void) { pcmcia_unregister_driver(&nsp_driver); }

Contributors

PersonTokensPropCommitsCommitProp
Linus Torvalds1280.00%150.00%
Christoph Hellwig320.00%150.00%
Total15100.00%2100.00%

module_init(nsp_cs_init) module_exit(nsp_cs_exit) /* end */

Overall Contributors

PersonTokensPropCommitsCommitProp
Linus Torvalds566973.32%58.77%
Alan Cox118215.29%11.75%
Dominik Brodowski4736.12%1831.58%
Boaz Harrosh921.19%11.75%
Rasmus Villemoes680.88%35.26%
Christoph Hellwig600.78%58.77%
Andrew Morton440.57%23.51%
Henrik Kretzschmar370.48%11.75%
Jeff Garzik300.39%23.51%
Mike Anderson270.35%11.75%
Rusty Russell90.12%23.51%
Al Viro80.10%11.75%
Yokota Hiroshi60.08%11.75%
Randy Dunlap50.06%11.75%
Dan Carpenter40.05%11.75%
Adrian Bunk30.04%23.51%
Roel Kluin30.04%11.75%
Magnus Damm20.03%11.75%
Jens Axboe20.03%11.75%
Harvey Harrison20.03%11.75%
Yoann Padioleau10.01%11.75%
Hannes Reinecke10.01%11.75%
Masanari Iida10.01%11.75%
Arjan van de Ven10.01%11.75%
Joe Perches10.01%11.75%
Lucas De Marchi10.01%11.75%
Total7732100.00%57100.00%
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