m68k: Reformat the Atari SCSI driver (c28bda25) · Commits · EulixOS / Software / Kernel

drivers/scsi/atari_NCR5380.c

+2198 −2189

Original line number	Diff line number	Diff line
		@@ -78,12 +78,20 @@

		#if (NDEBUG & NDEBUG_LISTS)
		#define LIST(x, y) \
		{ printk("LINE:%d Adding %p to %p\n", __LINE__, (void)(x), (void)(y)); \
		if ((x)==(y)) udelay(5); }
		do { \
		printk("LINE:%d Adding %p to %p\n", \
		__LINE__, (void)(x), (void)(y)); \
		if ((x) == (y)) \
		udelay(5); \
		} while (0)
		#define REMOVE(w, x, y, z) \
		{ printk("LINE:%d Removing: %p->%p %p->%p \n", __LINE__, \
		(void)(w), (void)(x), (void)(y), (void)(z)); \
		if ((x)==(y)) udelay(5); }
		do { \
		printk("LINE:%d Removing: %p->%p %p->%p \n", \
		__LINE__, (void)(w), (void)(x), \
		(void)(y), (void)(z)); \
		if ((x) == (y)) \
		udelay(5); \
		} while (0)
		#else
		#define LIST(x,y)
		#define REMOVE(w,x,y,z)
		@@ -355,17 +363,17 @@ static int is_lun_busy( Scsi_Cmnd *cmd, int should_be_tagged )
		SETUP_HOSTDATA(cmd->device->host);

		if (hostdata->busy[cmd->device->id] & (1 << cmd->device->lun))
		return( 1 );
		return 1;
		if (!should_be_tagged \|\|
		!setup_use_tagged_queuing \|\| !cmd->device->tagged_supported)
		return( 0 );
		return 0;
		if (TagAlloc[cmd->device->id][cmd->device->lun].nr_allocated >=
		TagAlloc[cmd->device->id][cmd->device->lun].queue_size) {
		TAG_PRINTK("scsi%d: target %d lun %d: no free tags\n",
		H_NO(cmd), cmd->device->id, cmd->device->lun);
		return( 1 );
		return 1;
		}
		return( 0 );
		return 0;
		}


		@@ -387,8 +395,7 @@ static void cmd_get_tag( Scsi_Cmnd *cmd, int should_be_tagged )
		hostdata->busy[cmd->device->id] \|= (1 << cmd->device->lun);
		TAG_PRINTK("scsi%d: target %d lun %d now allocated by untagged "
		"command\n", H_NO(cmd), cmd->device->id, cmd->device->lun);
		}
		else {
		} else {
		TAG_ALLOC *ta = &TagAlloc[cmd->device->id][cmd->device->lun];

		cmd->tag = find_first_zero_bit(ta->allocated, MAX_TAGS);
		@@ -396,8 +403,8 @@ static void cmd_get_tag( Scsi_Cmnd *cmd, int should_be_tagged )
		ta->nr_allocated++;
		TAG_PRINTK("scsi%d: using tag %d for target %d lun %d "
		"(now %d tags in use)\n",
		H_NO(cmd), cmd->tag, cmd->device->id, cmd->device->lun,
		ta->nr_allocated );
		H_NO(cmd), cmd->tag, cmd->device->id,
		cmd->device->lun, ta->nr_allocated);
		}
		}

		@@ -414,12 +421,10 @@ static void cmd_free_tag( Scsi_Cmnd *cmd )
		hostdata->busy[cmd->device->id] &= ~(1 << cmd->device->lun);
		TAG_PRINTK("scsi%d: target %d lun %d untagged cmd finished\n",
		H_NO(cmd), cmd->device->id, cmd->device->lun);
		}
		else if (cmd->tag >= MAX_TAGS) {
		} else if (cmd->tag >= MAX_TAGS) {
		printk(KERN_NOTICE "scsi%d: trying to free bad tag %d!\n",
		H_NO(cmd), cmd->tag);
		}
		else {
		} else {
		TAG_ALLOC *ta = &TagAlloc[cmd->device->id][cmd->device->lun];
		clear_bit(cmd->tag, ta->allocated);
		ta->nr_allocated--;
		@@ -499,7 +504,7 @@ static void merge_contiguous_buffers( Scsi_Cmnd *cmd )
		* Inputs : cmd - Scsi_Cmnd structure to have pointers reset.
		*/

		static __inline__ void initialize_SCp(Scsi_Cmnd *cmd)
		static inline void initialize_SCp(Scsi_Cmnd *cmd)
		{
		/*
		* Initialize the Scsi Pointer field so that all of the commands in the
		@@ -529,21 +534,26 @@ static __inline__ void initialize_SCp(Scsi_Cmnd *cmd)
		#if NDEBUG
		static struct {
		unsigned char mask;
		const char * name;}
		signals[] = {{ SR_DBP, "PARITY"}, { SR_RST, "RST" }, { SR_BSY, "BSY" },
		const char *name;
		} signals[] = {
		{ SR_DBP, "PARITY"}, { SR_RST, "RST" }, { SR_BSY, "BSY" },
		{ SR_REQ, "REQ" }, { SR_MSG, "MSG" }, { SR_CD, "CD" }, { SR_IO, "IO" },
		{ SR_SEL, "SEL" }, {0, NULL}},
		basrs[] = {{BASR_ATN, "ATN"}, {BASR_ACK, "ACK"}, {0, NULL}},
		icrs[] = {{ICR_ASSERT_RST, "ASSERT RST"},{ICR_ASSERT_ACK, "ASSERT ACK"},
		{ SR_SEL, "SEL" }, {0, NULL}
		}, basrs[] = {
		{BASR_ATN, "ATN"}, {BASR_ACK, "ACK"}, {0, NULL}
		}, icrs[] = {
		{ICR_ASSERT_RST, "ASSERT RST"},{ICR_ASSERT_ACK, "ASSERT ACK"},
		{ICR_ASSERT_BSY, "ASSERT BSY"}, {ICR_ASSERT_SEL, "ASSERT SEL"},
		{ICR_ASSERT_ATN, "ASSERT ATN"}, {ICR_ASSERT_DATA, "ASSERT DATA"},
		{0, NULL}},
		mrs[] = {{MR_BLOCK_DMA_MODE, "MODE BLOCK DMA"}, {MR_TARGET, "MODE TARGET"},
		{0, NULL}
		}, mrs[] = {
		{MR_BLOCK_DMA_MODE, "MODE BLOCK DMA"}, {MR_TARGET, "MODE TARGET"},
		{MR_ENABLE_PAR_CHECK, "MODE PARITY CHECK"}, {MR_ENABLE_PAR_INTR,
		"MODE PARITY INTR"}, {MR_ENABLE_EOP_INTR,"MODE EOP INTR"},
		{MR_MONITOR_BSY, "MODE MONITOR BSY"},
		{MR_DMA_MODE, "MODE DMA"}, {MR_ARBITRATE, "MODE ARBITRATION"},
		{0, NULL}};
		{0, NULL}
		};

		/*
		* Function : void NCR5380_print(struct Scsi_Host *instance)
		@@ -553,7 +563,8 @@ mrs[] = {{MR_BLOCK_DMA_MODE, "MODE BLOCK DMA"}, {MR_TARGET, "MODE TARGET"},
		* Input : instance - which NCR5380
		*/

		static void NCR5380_print(struct Scsi_Host *instance) {
		static void NCR5380_print(struct Scsi_Host *instance)
		{
		unsigned char status, data, basr, mr, icr, i;
		unsigned long flags;

		@@ -589,7 +600,8 @@ static struct {
		} phases[] = {
		{PHASE_DATAOUT, "DATAOUT"}, {PHASE_DATAIN, "DATAIN"}, {PHASE_CMDOUT, "CMDOUT"},
		{PHASE_STATIN, "STATIN"}, {PHASE_MSGOUT, "MSGOUT"}, {PHASE_MSGIN, "MSGIN"},
		{PHASE_UNKNOWN, "UNKNOWN"}};
		{PHASE_UNKNOWN, "UNKNOWN"}
		};

		/*
		* Function : void NCR5380_print_phase(struct Scsi_Host *instance)
		@@ -609,7 +621,8 @@ static void NCR5380_print_phase(struct Scsi_Host *instance)
		printk(KERN_DEBUG "scsi%d: REQ not asserted, phase unknown.\n", HOSTNO);
		else {
		for (i = 0; (phases[i].value != PHASE_UNKNOWN) &&
		(phases[i].value != (status & PHASE_MASK)); ++i);
		(phases[i].value != (status & PHASE_MASK)); ++i)
		;
		printk(KERN_DEBUG "scsi%d: phase %s\n", HOSTNO, phases[i].name);
		}
		}
		@@ -617,8 +630,12 @@ static void NCR5380_print_phase(struct Scsi_Host *instance)
		#else /* !NDEBUG */

		/* dummies... */
		__inline__ void NCR5380_print(struct Scsi_Host *instance) { };
		__inline__ void NCR5380_print_phase(struct Scsi_Host *instance) { };
		static inline void NCR5380_print(struct Scsi_Host *instance)
		{
		};
		static inline void NCR5380_print_phase(struct Scsi_Host *instance)
		{
		};

		#endif

		@@ -638,10 +655,10 @@ __inline__ void NCR5380_print_phase(struct Scsi_Host *instance) { };
		#include <linux/workqueue.h>
		#include <linux/interrupt.h>

		static volatile int main_running = 0;
		static volatile int main_running;
		static DECLARE_WORK(NCR5380_tqueue, (void ()(void ))NCR5380_main, NULL);

		static __inline__ void queue_main(void)
		static inline void queue_main(void)
		{
		if (!main_running) {
		/* If in interrupt and NCR5380_main() not already running,
		@@ -739,14 +756,14 @@ static void NCR5380_print_status (struct Scsi_Host *instance)

		#undef SPRINTF
		#define SPRINTF(fmt,args...) \
		do { if (pos + strlen(fmt) + 20 /* slop */ < buffer + length) \
		pos += sprintf(pos, fmt , ## args); } while(0)
		static
		char lprint_Scsi_Cmnd (Scsi_Cmnd cmd, char pos, char buffer, int length);
		do { \
		if (pos + strlen(fmt) + 20 /* slop */ < buffer + length) \
		pos += sprintf(pos, fmt , ## args); \
		} while(0)
		static char lprint_Scsi_Cmnd(Scsi_Cmnd cmd, char pos, char buffer, int length);

		static
		int NCR5380_proc_info (struct Scsi_Host instance, char buffer, char **start, off_t offset,
		int length, int inout)
		static int NCR5380_proc_info(struct Scsi_Host instance, char buffer,
		char **start, off_t offset, int length, int inout)
		{
		char *pos = buffer;
		struct NCR5380_hostdata *hostdata;
		@@ -763,13 +780,13 @@ int NCR5380_proc_info (struct Scsi_Host instance, char buffer, char **start, o

		hostdata = (struct NCR5380_hostdata *)instance->hostdata;

		if (inout) { /* Has data been written to the file ? */
		return(-ENOSYS); /* Currently this is a no-op */
		}
		if (inout) /* Has data been written to the file ? */
		return -ENOSYS; /* Currently this is a no-op */
		SPRINTF("NCR5380 core release=%d.\n", NCR5380_PUBLIC_RELEASE);
		check_offset();
		local_irq_save(flags);
		SPRINTF("NCR5380: coroutine is%s running.\n", main_running ? "" : "n't");
		SPRINTF("NCR5380: coroutine is%s running.\n",
		main_running ? "" : "n't");
		check_offset();
		if (!hostdata->connected)
		SPRINTF("scsi%d: no currently connected command\n", HOSTNO);
		@@ -800,8 +817,7 @@ int NCR5380_proc_info (struct Scsi_Host instance, char buffer, char **start, o
		return length;
		}

		static char *
		lprint_Scsi_Cmnd (Scsi_Cmnd cmd, char pos, char *buffer, int length)
		static char lprint_Scsi_Cmnd(Scsi_Cmnd cmd, char pos, char buffer, int length)
		{
		int i, s;
		unsigned char *command;
		@@ -861,7 +877,6 @@ static int NCR5380_init (struct Scsi_Host *instance, int flags)
		first_instance = instance;
		}


		#ifndef AUTOSENSE
		if ((instance->cmd_per_lun > 1) \|\| (instance->can_queue > 1))
		printk("scsi%d: WARNING : support for multiple outstanding commands enabled\n"
		@@ -897,11 +912,10 @@ int atari_scsi_update_timeout(Scsi_Cmnd * SCset, int timeout)
		* timers for timeout.
		*/

		if (!timer_pending(&SCset->eh_timeout)) {
		if (!timer_pending(&SCset->eh_timeout))
		rtn = 0;
		} else {
		else
		rtn = SCset->eh_timeout.expires - jiffies;
		}

		if (timeout == 0) {
		del_timer(&SCset->eh_timeout);
		@@ -935,8 +949,7 @@ int atari_scsi_update_timeout(Scsi_Cmnd * SCset, int timeout)
		*
		*/

		static
		int NCR5380_queue_command (Scsi_Cmnd cmd, void (done)(Scsi_Cmnd *))
		static int NCR5380_queue_command(Scsi_Cmnd cmd, void (done)(Scsi_Cmnd *))
		{
		SETUP_HOSTDATA(cmd->device->host);
		Scsi_Cmnd *tmp;
		@@ -956,7 +969,6 @@ int NCR5380_queue_command (Scsi_Cmnd cmd, void (done)(Scsi_Cmnd *))
		}
		#endif /* (NDEBUG & NDEBUG_NO_WRITE) */


		#ifdef NCR5380_STATS
		# if 0
		if (!hostdata->connected && !hostdata->issue_queue &&
		@@ -967,8 +979,7 @@ int NCR5380_queue_command (Scsi_Cmnd cmd, void (done)(Scsi_Cmnd *))
		# ifdef NCR5380_STAT_LIMIT
		if (cmd->request_bufflen > NCR5380_STAT_LIMIT)
		# endif
		switch (cmd->cmnd[0])
		{
		switch (cmd->cmnd[0]) {
		case WRITE:
		case WRITE_6:
		case WRITE_10:
		@@ -996,7 +1007,6 @@ int NCR5380_queue_command (Scsi_Cmnd cmd, void (done)(Scsi_Cmnd *))

		cmd->result = 0;


		/*
		* Insert the cmd into the issue queue. Note that REQUEST SENSE
		* commands are added to the head of the queue since any command will
		@@ -1113,7 +1123,9 @@ static void NCR5380_main (void *bl)
		tmp && (tmp != prev); prev = tmp, tmp = NEXT(tmp))
		;
		/printk("%p ", tmp);/
		if ((tmp == prev) && tmp) printk(" LOOP\n");/* else printk("\n");*/
		if ((tmp == prev) && tmp)
		printk(" LOOP\n");
		/* else printk("\n"); */
		#endif
		for (tmp = (Scsi_Cmnd *) hostdata->issue_queue,
		prev = NULL; tmp; prev = tmp, tmp = NEXT(tmp)) {
		@@ -1246,9 +1258,9 @@ static void NCR5380_dma_complete( struct Scsi_Host *instance )
		p = hostdata->connected->SCp.phase;
		if (p & SR_IO) {
		udelay(10);
		if ((((NCR5380_read(BUS_AND_STATUS_REG)) &
		if ((NCR5380_read(BUS_AND_STATUS_REG) &
		(BASR_PHASE_MATCH\|BASR_ACK)) ==
		(BASR_PHASE_MATCH\|BASR_ACK))) {
		(BASR_PHASE_MATCH\|BASR_ACK)) {
		saved_data = NCR5380_read(INPUT_DATA_REG);
		overrun = 1;
		DMA_PRINTK("scsi%d: read overrun handled\n", HOSTNO);
		@@ -1267,8 +1279,8 @@ static void NCR5380_dma_complete( struct Scsi_Host *instance )
		transfered = hostdata->dma_len - NCR5380_dma_residual(instance);
		hostdata->dma_len = 0;

		data = (unsigned char **) &(hostdata->connected->SCp.ptr);
		count = &(hostdata->connected->SCp.this_residual);
		data = (unsigned char **)&hostdata->connected->SCp.ptr;
		count = &hostdata->connected->SCp.this_residual;
		*data += transfered;
		*count -= transfered;

		@@ -1322,16 +1334,13 @@ static irqreturn_t NCR5380_intr (int irq, void *dev_id)
		INT_PRINTK("scsi%d: SEL interrupt\n", HOSTNO);
		NCR5380_reselect(instance);
		(void)NCR5380_read(RESET_PARITY_INTERRUPT_REG);
		}
		else if (basr & BASR_PARITY_ERROR) {
		} else if (basr & BASR_PARITY_ERROR) {
		INT_PRINTK("scsi%d: PARITY interrupt\n", HOSTNO);
		(void)NCR5380_read(RESET_PARITY_INTERRUPT_REG);
		}
		else if ((NCR5380_read(STATUS_REG) & SR_RST) == SR_RST) {
		} else if ((NCR5380_read(STATUS_REG) & SR_RST) == SR_RST) {
		INT_PRINTK("scsi%d: RESET interrupt\n", HOSTNO);
		(void)NCR5380_read(RESET_PARITY_INTERRUPT_REG);
		}
		else {
		} else {
		/*
		* The rest of the interrupt conditions can occur only during a
		* DMA transfer
		@@ -1365,8 +1374,7 @@ static irqreturn_t NCR5380_intr (int irq, void *dev_id)
		}
		} /* if !(SELECTION \|\| PARITY) */
		handled = 1;
		} /* BASR & IRQ */
		else {
		} /* BASR & IRQ */ else {
		printk(KERN_NOTICE "scsi%d: interrupt without IRQ bit set in BASR, "
		"BASR 0x%X, MR 0x%X, SR 0x%x\n", HOSTNO, basr,
		NCR5380_read(MODE_REG), NCR5380_read(STATUS_REG));
		@@ -1387,8 +1395,7 @@ static void collect_stats(struct NCR5380_hostdata* hostdata, Scsi_Cmnd* cmd)
		# ifdef NCR5380_STAT_LIMIT
		if (cmd->request_bufflen > NCR5380_STAT_LIMIT)
		# endif
		switch (cmd->cmnd[0])
		{
		switch (cmd->cmnd[0]) {
		case WRITE:
		case WRITE_6:
		case WRITE_10:
		@@ -1464,7 +1471,6 @@ static int NCR5380_select (struct Scsi_Host instance, Scsi_Cmnd cmd, int tag)
		}
		NCR5380_write(TARGET_COMMAND_REG, 0);


		/*
		* Start arbitration.
		*/
		@@ -1479,11 +1485,10 @@ static int NCR5380_select (struct Scsi_Host instance, Scsi_Cmnd cmd, int tag)
		{
		unsigned long timeout = jiffies + 2*NCR_TIMEOUT;

		while (!(NCR5380_read(INITIATOR_COMMAND_REG) & ICR_ARBITRATION_PROGRESS)
		&& time_before(jiffies, timeout) && !hostdata->connected)
		while (!(NCR5380_read(INITIATOR_COMMAND_REG) & ICR_ARBITRATION_PROGRESS) &&
		time_before(jiffies, timeout) && !hostdata->connected)
		;
		if (time_after_eq(jiffies, timeout))
		{
		if (time_after_eq(jiffies, timeout)) {
		printk("scsi : arbitration timeout at %d\n", __LINE__);
		NCR5380_write(MODE_REG, MR_BASE);
		NCR5380_write(SELECT_ENABLE_REG, hostdata->id_mask);
		@@ -1491,8 +1496,9 @@ static int NCR5380_select (struct Scsi_Host instance, Scsi_Cmnd cmd, int tag)
		}
		}
		#else /* NCR_TIMEOUT */
		while (!(NCR5380_read(INITIATOR_COMMAND_REG) & ICR_ARBITRATION_PROGRESS)
		&& !hostdata->connected);
		while (!(NCR5380_read(INITIATOR_COMMAND_REG) & ICR_ARBITRATION_PROGRESS) &&
		!hostdata->connected)
		;
		#endif

		ARB_PRINTK("scsi%d: arbitration complete\n", HOSTNO);
		@@ -1524,8 +1530,8 @@ static int NCR5380_select (struct Scsi_Host instance, Scsi_Cmnd cmd, int tag)
		/* after/during arbitration, BSY should be asserted.
		IBM DPES-31080 Version S31Q works now */
		/* Tnx to Thomas_Roesch@m2.maus.de for finding this! (Roman) */
		NCR5380_write(INITIATOR_COMMAND_REG, ICR_BASE \| ICR_ASSERT_SEL \|
		ICR_ASSERT_BSY ) ;
		NCR5380_write(INITIATOR_COMMAND_REG,
		ICR_BASE \| ICR_ASSERT_SEL \| ICR_ASSERT_BSY);

		if ((NCR5380_read(INITIATOR_COMMAND_REG) & ICR_ARBITRATION_LOST) \|\|
		hostdata->connected) {
		@@ -1634,14 +1640,14 @@ static int NCR5380_select (struct Scsi_Host instance, Scsi_Cmnd cmd, int tag)
		* IO while SEL is true. But again, there are some disks out the in the
		* world that do that nevertheless. (Somebody claimed that this announces
		* reselection capability of the target.) So we better skip that test and
		* only wait for BSY... (Famous german words: Der Klügere gibt nach :-)
		* only wait for BSY... (Famous german words: Der Klügere gibt nach :-)
		*/

		while (time_before(jiffies, timeout) && !(NCR5380_read(STATUS_REG) &
		(SR_BSY \| SR_IO)));
		while (time_before(jiffies, timeout) &&
		!(NCR5380_read(STATUS_REG) & (SR_BSY \| SR_IO)))
		;

		if ((NCR5380_read(STATUS_REG) & (SR_SEL \| SR_IO)) ==
		(SR_SEL \| SR_IO)) {
		if ((NCR5380_read(STATUS_REG) & (SR_SEL \| SR_IO)) == (SR_SEL \| SR_IO)) {
		NCR5380_write(INITIATOR_COMMAND_REG, ICR_BASE);
		NCR5380_reselect(instance);
		printk(KERN_ERR "scsi%d: reselection after won arbitration?\n",
		@@ -1650,7 +1656,8 @@ static int NCR5380_select (struct Scsi_Host instance, Scsi_Cmnd cmd, int tag)
		return -1;
		}
		#else
		while (time_before(jiffies, timeout) && !(NCR5380_read(STATUS_REG) & SR_BSY));
		while (time_before(jiffies, timeout) && !(NCR5380_read(STATUS_REG) & SR_BSY))
		;
		#endif

		/*
		@@ -1705,7 +1712,8 @@ static int NCR5380_select (struct Scsi_Host instance, Scsi_Cmnd cmd, int tag)
		*/

		/* Wait for start of REQ/ACK handshake */
		while (!(NCR5380_read(STATUS_REG) & SR_REQ));
		while (!(NCR5380_read(STATUS_REG) & SR_REQ))
		;

		SEL_PRINTK("scsi%d: target %d selected, going into MESSAGE OUT phase.\n",
		HOSTNO, cmd->device->id);
		@@ -1736,7 +1744,6 @@ static int NCR5380_select (struct Scsi_Host instance, Scsi_Cmnd cmd, int tag)

		initialize_SCp(cmd);


		return 0;
		}

		@@ -1786,7 +1793,8 @@ static int NCR5380_transfer_pio( struct Scsi_Host *instance,
		* Wait for assertion of REQ, after which the phase bits will be
		* valid
		*/
		while (!((tmp = NCR5380_read(STATUS_REG)) & SR_REQ));
		while (!((tmp = NCR5380_read(STATUS_REG)) & SR_REQ))
		;

		HSH_PRINTK("scsi%d: REQ detected\n", HOSTNO);

		@@ -1814,8 +1822,7 @@ static int NCR5380_transfer_pio( struct Scsi_Host *instance,

		if (!(p & SR_IO)) {
		if (!((p & SR_MSG) && c > 1)) {
		NCR5380_write(INITIATOR_COMMAND_REG, ICR_BASE \|
		ICR_ASSERT_DATA);
		NCR5380_write(INITIATOR_COMMAND_REG, ICR_BASE \| ICR_ASSERT_DATA);
		NCR_PRINT(NDEBUG_PIO);
		NCR5380_write(INITIATOR_COMMAND_REG, ICR_BASE \|
		ICR_ASSERT_DATA \| ICR_ASSERT_ACK);
		@@ -1831,7 +1838,8 @@ static int NCR5380_transfer_pio( struct Scsi_Host *instance,
		NCR5380_write(INITIATOR_COMMAND_REG, ICR_BASE \| ICR_ASSERT_ACK);
		}

		while (NCR5380_read(STATUS_REG) & SR_REQ);
		while (NCR5380_read(STATUS_REG) & SR_REQ)
		;

		HSH_PRINTK("scsi%d: req false, handshake complete\n", HOSTNO);

		@@ -1861,7 +1869,8 @@ static int NCR5380_transfer_pio( struct Scsi_Host *instance,
		tmp = NCR5380_read(STATUS_REG);
		/* The phase read from the bus is valid if either REQ is (already)
		* asserted or if ACK hasn't been released yet. The latter is the case if
		* we're in MSGIN and all wanted bytes have been received. */
		* we're in MSGIN and all wanted bytes have been received.
		*/
		if ((tmp & SR_REQ) \|\| (p == PHASE_MSGIN && c == 0))
		*phase = tmp & PHASE_MASK;
		else
		@@ -1900,14 +1909,16 @@ static int do_abort (struct Scsi_Host *host)
		* the target sees, so we just handshake.
		*/

		while (!(tmp = NCR5380_read(STATUS_REG)) & SR_REQ);
		while (!(tmp = NCR5380_read(STATUS_REG)) & SR_REQ)
		;

		NCR5380_write(TARGET_COMMAND_REG, PHASE_SR_TO_TCR(tmp));

		if ((tmp & PHASE_MASK) != PHASE_MSGOUT) {
		NCR5380_write(INITIATOR_COMMAND_REG, ICR_BASE \| ICR_ASSERT_ATN \|
		ICR_ASSERT_ACK);
		while (NCR5380_read(STATUS_REG) & SR_REQ);
		while (NCR5380_read(STATUS_REG) & SR_REQ)
		;
		NCR5380_write(INITIATOR_COMMAND_REG, ICR_BASE \| ICR_ASSERT_ATN);
		}

		@@ -1962,9 +1973,8 @@ static int NCR5380_transfer_dma( struct Scsi_Host *instance,
		return -1;
		}

		if (atari_read_overruns && (p & SR_IO)) {
		if (atari_read_overruns && (p & SR_IO))
		c -= atari_read_overruns;
		}

		DMA_PRINTK("scsi%d: initializing DMA for %s, %d bytes %s %p\n",
		HOSTNO, (p & SR_IO) ? "reading" : "writing",
		@@ -2054,7 +2064,8 @@ static void NCR5380_information_transfer (struct Scsi_Host *instance)

		NCR5380_write(INITIATOR_COMMAND_REG, ICR_BASE \| ICR_ASSERT_ATN \|
		ICR_ASSERT_ACK);
		while (NCR5380_read(STATUS_REG) & SR_REQ);
		while (NCR5380_read(STATUS_REG) & SR_REQ)
		;
		NCR5380_write(INITIATOR_COMMAND_REG, ICR_BASE \|
		ICR_ASSERT_ATN);
		sink = 0;
		@@ -2145,8 +2156,8 @@ static void NCR5380_information_transfer (struct Scsi_Host *instance)
		} else
		#endif /* defined(REAL_DMA) */
		NCR5380_transfer_pio(instance, &phase,
		(int ) &cmd->SCp.this_residual, (unsigned char *)
		&cmd->SCp.ptr);
		(int *)&cmd->SCp.this_residual,
		(unsigned char **)&cmd->SCp.ptr);
		break;
		case PHASE_MSGIN:
		len = 1;
		@@ -2265,8 +2276,7 @@ static void NCR5380_information_transfer (struct Scsi_Host *instance)
		#ifdef AUTOSENSE
		if ((cmd->cmnd[0] != REQUEST_SENSE) &&
		(status_byte(cmd->SCp.Status) == CHECK_CONDITION)) {
		ASEN_PRINTK("scsi%d: performing request sense\n",
		HOSTNO);
		ASEN_PRINTK("scsi%d: performing request sense\n", HOSTNO);
		cmd->cmnd[0] = REQUEST_SENSE;
		cmd->cmnd[1] &= 0xe0;
		cmd->cmnd[2] = 0;
		@@ -2463,8 +2473,7 @@ static void NCR5380_information_transfer (struct Scsi_Host *instance)


		msgout = MESSAGE_REJECT;
		NCR5380_write(INITIATOR_COMMAND_REG, ICR_BASE \|
		ICR_ASSERT_ATN);
		NCR5380_write(INITIATOR_COMMAND_REG, ICR_BASE \| ICR_ASSERT_ATN);
		break;
		} /* switch (tmp) */
		break;
		@@ -2499,8 +2508,7 @@ static void NCR5380_information_transfer (struct Scsi_Host *instance)
		* PSEUDO-DMA architecture we should probably
		* use the dma transfer function.
		*/
		NCR5380_transfer_pio(instance, &phase, &len,
		&data);
		NCR5380_transfer_pio(instance, &phase, &len, &data);
		break;
		case PHASE_STATIN:
		len = 1;
		@@ -2565,14 +2573,16 @@ static void NCR5380_reselect (struct Scsi_Host *instance)

		NCR5380_write(INITIATOR_COMMAND_REG, ICR_BASE \| ICR_ASSERT_BSY);

		while (NCR5380_read(STATUS_REG) & SR_SEL);
		while (NCR5380_read(STATUS_REG) & SR_SEL)
		;
		NCR5380_write(INITIATOR_COMMAND_REG, ICR_BASE);

		/*
		* Wait for target to go into MSGIN.
		*/

		while (!(NCR5380_read(STATUS_REG) & SR_REQ));
		while (!(NCR5380_read(STATUS_REG) & SR_REQ))
		;

		len = 1;
		data = msg;
		@@ -2755,7 +2765,7 @@ int NCR5380_abort (Scsi_Cmnd *cmd)
		*/
		for (prev = (Scsi_Cmnd **)&(hostdata->issue_queue),
		tmp = (Scsi_Cmnd *)hostdata->issue_queue;
		tmp; prev = NEXTADDR(tmp), tmp = NEXT(tmp) )
		tmp; prev = NEXTADDR(tmp), tmp = NEXT(tmp)) {
		if (cmd == tmp) {
		REMOVE(5, *prev, tmp, NEXT(tmp));
		(*prev) = NEXT(tmp);
		@@ -2770,6 +2780,7 @@ int NCR5380_abort (Scsi_Cmnd *cmd)
		falcon_release_lock_if_possible(hostdata);
		return SCSI_ABORT_SUCCESS;
		}
		}

		/*
		* Case 3 : If any commands are connected, we're going to fail the abort
		@@ -2814,7 +2825,7 @@ int NCR5380_abort (Scsi_Cmnd *cmd)
		*/

		for (tmp = (Scsi_Cmnd *) hostdata->disconnected_queue; tmp;
		tmp = NEXT(tmp))
		tmp = NEXT(tmp)) {
		if (cmd == tmp) {
		local_irq_restore(flags);
		ABRT_PRINTK("scsi%d: aborting disconnected command.\n", HOSTNO);
		@@ -2829,7 +2840,7 @@ int NCR5380_abort (Scsi_Cmnd *cmd)
		local_irq_save(flags);
		for (prev = (Scsi_Cmnd **)&(hostdata->disconnected_queue),
		tmp = (Scsi_Cmnd *)hostdata->disconnected_queue;
		tmp; prev = NEXTADDR(tmp), tmp = NEXT(tmp) )
		tmp; prev = NEXTADDR(tmp), tmp = NEXT(tmp)) {
		if (cmd == tmp) {
		REMOVE(5, *prev, tmp, NEXT(tmp));
		*prev = NEXT(tmp);
		@@ -2850,6 +2861,8 @@ int NCR5380_abort (Scsi_Cmnd *cmd)
		return SCSI_ABORT_SUCCESS;
		}
		}
		}
		}

		/*
		* Case 5 : If we reached this point, the command was not found in any of
		@@ -3021,7 +3034,3 @@ static int NCR5380_bus_reset( Scsi_Cmnd *cmd)
		return SCSI_RESET_WAKEUP \| SCSI_RESET_BUS_RESET;
		#endif /* 1 */
		}

		/* Local Variables: */
		/* tab-width: 8 */
		/* End: */

drivers/scsi/atari_scsi.c

+175 −186

File changed.

Preview size limit exceeded, changes collapsed.