cregit-Linux how code gets into the kernel

Release 4.7 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); }

Contributors

PersonTokensPropCommitsCommitProp
boaz harroshboaz harrosh27100.00%1100.00%
Total27100.00%1100.00%


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 }

Contributors

PersonTokensPropCommitsCommitProp
linus torvaldslinus torvalds88100.00%3100.00%
Total88100.00%3100.00%

#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); } }

Contributors

PersonTokensPropCommitsCommitProp
linus torvaldslinus torvalds79100.00%2100.00%
Total79100.00%2100.00%

#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); }

Contributors

PersonTokensPropCommitsCommitProp
linus torvaldslinus torvalds3895.00%150.00%
henrik kretzschmarhenrik 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; }

Contributors

PersonTokensPropCommitsCommitProp
linus torvaldslinus torvalds28886.49%436.36%
boaz harroshboaz harrosh278.11%19.09%
alan coxalan cox72.10%19.09%
jeff garzikjeff garzik41.20%218.18%
henrik kretzschmarhenrik kretzschmar41.20%19.09%
jens axboejens axboe20.60%19.09%
hannes reineckehannes 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; } }

Contributors

PersonTokensPropCommitsCommitProp
alan coxalan cox3758.73%116.67%
linus torvaldslinus torvalds1930.16%233.33%
yokota hiroshiyokota hiroshi57.94%116.67%
randy dunlaprandy dunlap11.59%116.67%
jeff garzikjeff 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; }

Contributors

PersonTokensPropCommitsCommitProp
linus torvaldslinus torvalds23291.70%375.00%
alan coxalan cox218.30%125.00%
Total253100.00%4100.00%

/* * 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; }

Contributors

PersonTokensPropCommitsCommitProp
linus torvaldslinus torvalds26691.72%342.86%
alan coxalan cox155.17%114.29%
mike andersonmike anderson41.38%114.29%
jeff garzikjeff garzik31.03%114.29%
henrik kretzschmarhenrik 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; }

Contributors

PersonTokensPropCommitsCommitProp
linus torvaldslinus torvalds24092.31%350.00%
alan coxalan cox155.77%116.67%
jeff garzikjeff garzik31.15%116.67%
henrik kretzschmarhenrik 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); }

Contributors

PersonTokensPropCommitsCommitProp
linus torvaldslinus torvalds5493.10%360.00%
mike andersonmike anderson23.45%120.00%
henrik kretzschmarhenrik kretzschmar23.45%120.00%
Total58100.00%5100.00%

/* * 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; }

Contributors

PersonTokensPropCommitsCommitProp
linus torvaldslinus torvalds8381.37%228.57%
alan coxalan cox1312.75%114.29%
mike andersonmike anderson21.96%114.29%
henrik kretzschmarhenrik kretzschmar21.96%114.29%
masanari iidamasanari iida10.98%114.29%
roel kluinroel kluin10.98%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; }

Contributors

PersonTokensPropCommitsCommitProp
linus torvaldslinus torvalds11791.41%240.00%
alan coxalan cox75.47%120.00%
henrik kretzschmarhenrik kretzschmar21.56%120.00%
mike andersonmike anderson21.56%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; }

Contributors

PersonTokensPropCommitsCommitProp
linus torvaldslinus torvalds20197.57%350.00%
mike andersonmike anderson20.97%116.67%
henrik kretzschmarhenrik kretzschmar20.97%116.67%
randy dunlaprandy 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; }

Contributors

PersonTokensPropCommitsCommitProp
linus torvaldslinus torvalds9393.94%360.00%
alan coxalan cox44.04%120.00%
henrik kretzschmarhenrik kretzschmar22.02%120.00%
Total99100.00%5100.00%

/* * 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; }

Contributors

PersonTokensPropCommitsCommitProp
linus torvaldslinus torvalds17696.17%350.00%
jeff garzikjeff garzik31.64%116.67%
henrik kretzschmarhenrik kretzschmar21.09%116.67%
mike andersonmike anderson21.09%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; }

Contributors

PersonTokensPropCommitsCommitProp
linus torvaldslinus torvalds8678.90%240.00%
alan coxalan cox1917.43%120.00%
henrik kretzschmarhenrik kretzschmar21.83%120.00%
mike andersonmike 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 torvaldslinus torvalds40581.33%330.00%
alan coxalan cox7014.06%110.00%
boaz harroshboaz harrosh142.81%110.00%
mike andersonmike anderson40.80%110.00%
henrik kretzschmarhenrik kretzschmar20.40%110.00%
randy dunlaprandy dunlap10.20%110.00%
lucas de marchilucas de marchi10.20%110.00%
roel kluinroel kluin10.20%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 torvaldslinus torvalds37775.25%333.33%
alan coxalan cox9819.56%111.11%
boaz harroshboaz harrosh183.59%111.11%
mike andersonmike anderson40.80%111.11%
henrik kretzschmarhenrik kretzschmar20.40%111.11%
roel kluinroel kluin10.20%111.11%
randy dunlaprandy 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 torvaldslinus torvalds13975.14%337.50%
alan coxalan cox3317.84%112.50%
boaz harroshboaz harrosh63.24%112.50%
jeff garzikjeff garzik31.62%112.50%
henrik kretzschmarhenrik kretzschmar21.08%112.50%
mike andersonmike anderson21.08%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 torvaldslinus torvalds126680.08%360.00%
alan coxalan cox31319.80%120.00%
henrik kretzschmarhenrik 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 torvaldslinus torvalds18877.05%342.86%
alan coxalan cox3915.98%114.29%
christoph hellwigchristoph hellwig93.69%228.57%
rusty russellrusty 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
linus torvaldslinus torvalds1550.00%375.00%
alan coxalan cox1550.00%125.00%
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 coxalan cox22856.72%110.00%
linus torvaldslinus torvalds9724.13%330.00%
rasmus villemoesrasmus villemoes6816.92%330.00%
al viroal viro61.49%110.00%
christoph hellwigchristoph hellwig20.50%110.00%
randy dunlaprandy 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 coxalan cox8085.11%150.00%
linus torvaldslinus 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 torvaldslinus torvalds3480.95%133.33%
alan coxalan cox614.29%133.33%
henrik kretzschmarhenrik 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 coxalan cox2252.38%120.00%
linus torvaldslinus torvalds1842.86%360.00%
henrik kretzschmarhenrik 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 torvaldslinus torvalds8480.77%333.33%
dominik brodowskidominik brodowski1817.31%444.44%
alan coxalan cox10.96%111.11%
yoann padioleauyoann padioleau10.96%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 torvaldslinus torvalds2955.77%350.00%
dominik brodowskidominik brodowski1630.77%233.33%
alan coxalan 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 brodowskidominik brodowski11152.61%857.14%
linus torvaldslinus torvalds5023.70%321.43%
andrew mortonandrew morton3114.69%17.14%
alan coxalan cox178.06%17.14%
magnus dammmagnus 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 torvaldslinus torvalds14545.89%320.00%
dominik brodowskidominik brodowski14445.57%960.00%
alan coxalan cox185.70%16.67%
andrew mortonandrew morton51.58%16.67%
dan carpenterdan 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 torvaldslinus torvalds10272.34%333.33%
christoph hellwigchristoph hellwig1611.35%222.22%
alan coxalan cox139.22%111.11%
dominik brodowskidominik 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 torvaldslinus torvalds6487.67%350.00%
dominik brodowskidominik brodowski810.96%233.33%
alan coxalan 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 torvaldslinus torvalds4355.13%233.33%
dominik brodowskidominik brodowski2633.33%233.33%
alan coxalan cox810.26%116.67%
mike andersonmike 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 torvaldslinus torvalds1487.50%266.67%
christoph hellwigchristoph hellwig212.50%133.33%
Total16100.00%3100.00%


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

Contributors

PersonTokensPropCommitsCommitProp
linus torvaldslinus torvalds1280.00%150.00%
christoph hellwigchristoph hellwig320.00%150.00%
Total15100.00%2100.00%

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

Overall Contributors

PersonTokensPropCommitsCommitProp
linus torvaldslinus torvalds566973.32%58.77%
alan coxalan cox118215.29%11.75%
dominik brodowskidominik brodowski4736.12%1831.58%
boaz harroshboaz harrosh921.19%11.75%
rasmus villemoesrasmus villemoes680.88%35.26%
christoph hellwigchristoph hellwig600.78%58.77%
andrew mortonandrew morton440.57%23.51%
henrik kretzschmarhenrik kretzschmar370.48%11.75%
jeff garzikjeff garzik300.39%23.51%
mike andersonmike anderson270.35%11.75%
rusty russellrusty russell90.12%23.51%
al viroal viro80.10%11.75%
yokota hiroshiyokota hiroshi60.08%11.75%
randy dunlaprandy dunlap50.06%11.75%
dan carpenterdan carpenter40.05%11.75%
roel kluinroel kluin30.04%11.75%
adrian bunkadrian bunk30.04%23.51%
magnus dammmagnus damm20.03%11.75%
harvey harrisonharvey harrison20.03%11.75%
jens axboejens axboe20.03%11.75%
arjan van de venarjan van de ven10.01%11.75%
masanari iidamasanari iida10.01%11.75%
hannes reineckehannes reinecke10.01%11.75%
yoann padioleauyoann padioleau10.01%11.75%
joe perchesjoe perches10.01%11.75%
lucas de marchilucas de marchi10.01%11.75%
Total7732100.00%57100.00%
Information contained on this website is for historical information purposes only and does not indicate or represent copyright ownership.
{% endraw %}