From aff0cf9a7e098ecf1651f6f3a8cb0fbe272d6cf4 Mon Sep 17 00:00:00 2001 From: Finn Thain Date: Sun, 3 Jan 2016 16:06:09 +1100 Subject: ncr5380: Fix trailing whitespace using regexp This patch is the result of the following substitution. It removes any tabs and spaces at the end of a line. perl -i -pe 's,[\t ]+$,,' drivers/scsi/{atari_,}NCR5380.c This removes some unimportant discrepancies between the two core driver forks so that the important ones become obvious, to facilitate reunification. Signed-off-by: Finn Thain Reviewed-by: Hannes Reinecke Tested-by: Ondrej Zary Tested-by: Michael Schmitz Signed-off-by: Martin K. Petersen --- drivers/scsi/NCR5380.c | 372 ++++++++++++++++++++++++------------------------- 1 file changed, 186 insertions(+), 186 deletions(-) (limited to 'drivers/scsi') diff --git a/drivers/scsi/NCR5380.c b/drivers/scsi/NCR5380.c index b968b30..f674420 100644 --- a/drivers/scsi/NCR5380.c +++ b/drivers/scsi/NCR5380.c @@ -1,4 +1,4 @@ -/* +/* * NCR 5380 generic driver routines. These should make it *trivial* * to implement 5380 SCSI drivers under Linux with a non-trantor * architecture. @@ -6,12 +6,12 @@ * Note that these routines also work with NR53c400 family chips. * * Copyright 1993, Drew Eckhardt - * Visionary Computing + * Visionary Computing * (Unix and Linux consulting and custom programming) * drew@colorado.edu * +1 (303) 666-5836 * - * For more information, please consult + * For more information, please consult * * NCR 5380 Family * SCSI Protocol Controller @@ -30,16 +30,16 @@ */ /* - * Further development / testing that should be done : + * Further development / testing that should be done : * 1. Cleanup the NCR5380_transfer_dma function and DMA operation complete - * code so that everything does the same thing that's done at the + * code so that everything does the same thing that's done at the * end of a pseudo-DMA read operation. * * 2. Fix REAL_DMA (interrupt driven, polled works fine) - - * basically, transfer size needs to be reduced by one + * basically, transfer size needs to be reduced by one * and the last byte read as is done with PSEUDO_DMA. - * - * 4. Test SCSI-II tagged queueing (I have no devices which support + * + * 4. Test SCSI-II tagged queueing (I have no devices which support * tagged queueing) */ @@ -56,27 +56,27 @@ /* * Design * - * This is a generic 5380 driver. To use it on a different platform, + * This is a generic 5380 driver. To use it on a different platform, * one simply writes appropriate system specific macros (ie, data - * transfer - some PC's will use the I/O bus, 68K's must use + * transfer - some PC's will use the I/O bus, 68K's must use * memory mapped) and drops this file in their 'C' wrapper. * - * As far as command queueing, two queues are maintained for + * As far as command queueing, two queues are maintained for * each 5380 in the system - commands that haven't been issued yet, - * and commands that are currently executing. This means that an - * unlimited number of commands may be queued, letting - * more commands propagate from the higher driver levels giving higher - * throughput. Note that both I_T_L and I_T_L_Q nexuses are supported, - * allowing multiple commands to propagate all the way to a SCSI-II device + * and commands that are currently executing. This means that an + * unlimited number of commands may be queued, letting + * more commands propagate from the higher driver levels giving higher + * throughput. Note that both I_T_L and I_T_L_Q nexuses are supported, + * allowing multiple commands to propagate all the way to a SCSI-II device * while a command is already executing. * * - * Issues specific to the NCR5380 : + * Issues specific to the NCR5380 : * - * When used in a PIO or pseudo-dma mode, the NCR5380 is a braindead - * piece of hardware that requires you to sit in a loop polling for - * the REQ signal as long as you are connected. Some devices are - * brain dead (ie, many TEXEL CD ROM drives) and won't disconnect + * When used in a PIO or pseudo-dma mode, the NCR5380 is a braindead + * piece of hardware that requires you to sit in a loop polling for + * the REQ signal as long as you are connected. Some devices are + * brain dead (ie, many TEXEL CD ROM drives) and won't disconnect * while doing long seek operations. [...] These * broken devices are the exception rather than the rule and I'd rather * spend my time optimizing for the normal case. @@ -87,23 +87,23 @@ * which is started from a workqueue for each NCR5380 host in the * system. It attempts to establish I_T_L or I_T_L_Q nexuses by * removing the commands from the issue queue and calling - * NCR5380_select() if a nexus is not established. + * NCR5380_select() if a nexus is not established. * * Once a nexus is established, the NCR5380_information_transfer() * phase goes through the various phases as instructed by the target. * if the target goes into MSG IN and sends a DISCONNECT message, * the command structure is placed into the per instance disconnected - * queue, and NCR5380_main tries to find more work. If the target is + * queue, and NCR5380_main tries to find more work. If the target is * idle for too long, the system will try to sleep. * * If a command has disconnected, eventually an interrupt will trigger, * calling NCR5380_intr() which will in turn call NCR5380_reselect * to reestablish a nexus. This will run main if necessary. * - * On command termination, the done function will be called as + * On command termination, the done function will be called as * appropriate. * - * SCSI pointers are maintained in the SCp field of SCSI command + * SCSI pointers are maintained in the SCp field of SCSI command * structures, being initialized after the command is connected * in NCR5380_select, and set as appropriate in NCR5380_information_transfer. * Note that in violation of the standard, an implicit SAVE POINTERS operation @@ -113,18 +113,18 @@ /* * Using this file : * This file a skeleton Linux SCSI driver for the NCR 5380 series - * of chips. To use it, you write an architecture specific functions + * of chips. To use it, you write an architecture specific functions * and macros and include this file in your driver. * - * These macros control options : - * AUTOPROBE_IRQ - if defined, the NCR5380_probe_irq() function will be + * These macros control options : + * AUTOPROBE_IRQ - if defined, the NCR5380_probe_irq() function will be * defined. - * + * * AUTOSENSE - if defined, REQUEST SENSE will be performed automatically - * for commands that return with a CHECK CONDITION status. + * for commands that return with a CHECK CONDITION status. * * DIFFERENTIAL - if defined, NCR53c81 chips will use external differential - * transceivers. + * transceivers. * * DONT_USE_INTR - if defined, never use interrupts, even if we probe or * override-configure an IRQ. @@ -134,25 +134,25 @@ * REAL_DMA - if defined, REAL DMA is used during the data transfer phases. * * REAL_DMA_POLL - if defined, REAL DMA is used but the driver doesn't - * rely on phase mismatch and EOP interrupts to determine end + * rely on phase mismatch and EOP interrupts to determine end * of phase. * * These macros MUST be defined : - * + * * NCR5380_read(register) - read from the specified register * - * NCR5380_write(register, value) - write to the specific register + * NCR5380_write(register, value) - write to the specific register * - * NCR5380_implementation_fields - additional fields needed for this + * NCR5380_implementation_fields - additional fields needed for this * specific implementation of the NCR5380 * * Either real DMA *or* pseudo DMA may be implemented - * REAL functions : + * REAL functions : * NCR5380_REAL_DMA should be defined if real DMA is to be used. - * Note that the DMA setup functions should return the number of bytes + * Note that the DMA setup functions should return the number of bytes * that they were able to program the controller for. * - * Also note that generic i386/PC versions of these macros are + * Also note that generic i386/PC versions of these macros are * available as NCR5380_i386_dma_write_setup, * NCR5380_i386_dma_read_setup, and NCR5380_i386_dma_residual. * @@ -165,7 +165,7 @@ * NCR5380_pread(instance, dst, count); * * The generic driver is initialized by calling NCR5380_init(instance), - * after setting the appropriate host specific fields and ID. If the + * after setting the appropriate host specific fields and ID. If the * driver wishes to autoprobe for an IRQ line, the NCR5380_probe_irq(instance, * possible) function may be used. */ @@ -182,8 +182,8 @@ static void do_reset(struct Scsi_Host *); static inline void initialize_SCp(struct scsi_cmnd *cmd) { - /* - * Initialize the Scsi Pointer field so that all of the commands in the + /* + * Initialize the Scsi Pointer field so that all of the commands in the * various queues are valid. */ @@ -268,12 +268,12 @@ static struct { unsigned char value; const char *name; } phases[] __maybe_unused = { - {PHASE_DATAOUT, "DATAOUT"}, - {PHASE_DATAIN, "DATAIN"}, - {PHASE_CMDOUT, "CMDOUT"}, - {PHASE_STATIN, "STATIN"}, - {PHASE_MSGOUT, "MSGOUT"}, - {PHASE_MSGIN, "MSGIN"}, + {PHASE_DATAOUT, "DATAOUT"}, + {PHASE_DATAIN, "DATAIN"}, + {PHASE_CMDOUT, "CMDOUT"}, + {PHASE_STATIN, "STATIN"}, + {PHASE_MSGOUT, "MSGOUT"}, + {PHASE_MSGIN, "MSGIN"}, {PHASE_UNKNOWN, "UNKNOWN"} }; @@ -281,39 +281,39 @@ static struct { static struct { unsigned char mask; 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"}, +} 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"}, + {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"}, +}, +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"}, - {MR_ENABLE_PAR_CHECK, "MODE PARITY CHECK"}, - {MR_ENABLE_PAR_INTR, "MODE PARITY INTR"}, - {MR_MONITOR_BSY, "MODE MONITOR BSY"}, - {MR_DMA_MODE, "MODE DMA"}, - {MR_ARBITRATE, "MODE ARBITRATION"}, +}, +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_MONITOR_BSY, "MODE MONITOR BSY"}, + {MR_DMA_MODE, "MODE DMA"}, + {MR_ARBITRATE, "MODE ARBITRATION"}, {0, NULL} }; @@ -388,7 +388,7 @@ static int probe_irq __initdata; * Set a flag to indicate the IRQ in question was received. This is * used by the IRQ probe code. */ - + static irqreturn_t __init probe_intr(int irq, void *dev_id) { probe_irq = irq; @@ -420,7 +420,7 @@ static int __init __maybe_unused NCR5380_probe_irq(struct Scsi_Host *instance, /* * A interrupt is triggered whenever BSY = false, SEL = true - * and a bit set in the SELECT_ENABLE_REG is asserted on the + * and a bit set in the SELECT_ENABLE_REG is asserted on the * SCSI bus. * * Note that the bus is only driven when the phase control signals @@ -435,7 +435,7 @@ static int __init __maybe_unused NCR5380_probe_irq(struct Scsi_Host *instance, while (probe_irq == NO_IRQ && time_before(jiffies, timeout)) schedule_timeout_uninterruptible(1); - + NCR5380_write(SELECT_ENABLE_REG, 0); NCR5380_write(INITIATOR_COMMAND_REG, ICR_BASE); @@ -530,7 +530,7 @@ static int __maybe_unused NCR5380_show_info(struct seq_file *m, * with flags OR'd into the initial flags value. * * Notes : I assume that the host, hostno, and id bits have been - * set correctly. I don't care about the irq and other fields. + * set correctly. I don't care about the irq and other fields. * * Returns 0 for success */ @@ -561,7 +561,7 @@ static int NCR5380_init(struct Scsi_Host *instance, int flags) INIT_LIST_HEAD(&hostdata->disconnected); hostdata->flags = flags; - + INIT_WORK(&hostdata->main_task, NCR5380_main); hostdata->work_q = alloc_workqueue("ncr5380_%d", WQ_UNBOUND | WQ_MEM_RECLAIM, @@ -720,10 +720,10 @@ static int NCR5380_queue_command(struct Scsi_Host *instance, spin_lock_irqsave(&hostdata->lock, flags); - /* - * Insert the cmd into the issue queue. Note that REQUEST SENSE + /* + * Insert the cmd into the issue queue. Note that REQUEST SENSE * commands are added to the head of the queue since any command will - * clear the contingent allegiance condition that exists and the + * clear the contingent allegiance condition that exists and the * sense data is only guaranteed to be valid while the condition exists. */ @@ -803,9 +803,9 @@ static void requeue_cmd(struct Scsi_Host *instance, struct scsi_cmnd *cmd) /** * NCR5380_main - NCR state machines * - * NCR5380_main is a coroutine that runs as long as more work can - * be done on the NCR5380 host adapters in a system. Both - * NCR5380_queue_command() and NCR5380_intr() will try to start it + * NCR5380_main is a coroutine that runs as long as more work can + * be done on the NCR5380 host adapters in a system. Both + * NCR5380_queue_command() and NCR5380_intr() will try to start it * in case it is not running. */ @@ -816,7 +816,7 @@ static void NCR5380_main(struct work_struct *work) struct Scsi_Host *instance = hostdata->host; struct scsi_cmnd *cmd; int done; - + do { done = 1; @@ -975,37 +975,37 @@ static irqreturn_t NCR5380_intr(int irq, void *dev_id) return IRQ_RETVAL(handled); } -#endif +#endif -/* +/* * Function : int NCR5380_select(struct Scsi_Host *instance, * struct scsi_cmnd *cmd) * * Purpose : establishes I_T_L or I_T_L_Q nexus for new or existing command, - * including ARBITRATION, SELECTION, and initial message out for - * IDENTIFY and queue messages. + * including ARBITRATION, SELECTION, and initial message out for + * IDENTIFY and queue messages. * - * Inputs : instance - instantiation of the 5380 driver on which this + * Inputs : instance - instantiation of the 5380 driver on which this * target lives, cmd - SCSI command to execute. - * + * * Returns cmd if selection failed but should be retried, * NULL if selection failed and should not be retried, or * NULL if selection succeeded (hostdata->connected == cmd). * - * Side effects : - * If bus busy, arbitration failed, etc, NCR5380_select() will exit + * Side effects : + * If bus busy, arbitration failed, etc, NCR5380_select() will exit * with registers as they should have been on entry - ie * SELECT_ENABLE will be set appropriately, the NCR5380 * will cease to drive any SCSI bus signals. * - * If successful : I_T_L or I_T_L_Q nexus will be established, - * instance->connected will be set to cmd. + * If successful : I_T_L or I_T_L_Q nexus will be established, + * instance->connected will be set to cmd. * SELECT interrupt will be disabled. * - * If failed (no target) : cmd->scsi_done() will be called, and the + * If failed (no target) : cmd->scsi_done() will be called, and the * cmd->result host byte set to DID_BAD_TARGET. */ - + static struct scsi_cmnd *NCR5380_select(struct Scsi_Host *instance, struct scsi_cmnd *cmd) { @@ -1028,14 +1028,14 @@ static struct scsi_cmnd *NCR5380_select(struct Scsi_Host *instance, */ hostdata->selecting = cmd; - /* - * Set the phase bits to 0, otherwise the NCR5380 won't drive the + /* + * Set the phase bits to 0, otherwise the NCR5380 won't drive the * data bus during SELECTION. */ NCR5380_write(TARGET_COMMAND_REG, 0); - /* + /* * Start arbitration. */ @@ -1081,8 +1081,8 @@ static struct scsi_cmnd *NCR5380_select(struct Scsi_Host *instance, NCR5380_write(INITIATOR_COMMAND_REG, ICR_BASE | ICR_ASSERT_SEL | ICR_ASSERT_BSY); - /* - * Again, bus clear + bus settle time is 1.2us, however, this is + /* + * Again, bus clear + bus settle time is 1.2us, however, this is * a minimum so we'll udelay ceil(1.2) */ @@ -1105,14 +1105,14 @@ static struct scsi_cmnd *NCR5380_select(struct Scsi_Host *instance, dsprintk(NDEBUG_ARBITRATION, instance, "won arbitration\n"); - /* - * Now that we have won arbitration, start Selection process, asserting + /* + * Now that we have won arbitration, start Selection process, asserting * the host and target ID's on the SCSI bus. */ NCR5380_write(OUTPUT_DATA_REG, (hostdata->id_mask | (1 << scmd_id(cmd)))); - /* + /* * Raise ATN while SEL is true before BSY goes false from arbitration, * since this is the only way to guarantee that we'll get a MESSAGE OUT * phase immediately after selection. @@ -1121,7 +1121,7 @@ static struct scsi_cmnd *NCR5380_select(struct Scsi_Host *instance, NCR5380_write(INITIATOR_COMMAND_REG, (ICR_BASE | ICR_ASSERT_BSY | ICR_ASSERT_DATA | ICR_ASSERT_ATN | ICR_ASSERT_SEL)); NCR5380_write(MODE_REG, MR_BASE); - /* + /* * Reselect interrupts must be turned off prior to the dropping of BSY, * otherwise we will trigger an interrupt. */ @@ -1130,7 +1130,7 @@ static struct scsi_cmnd *NCR5380_select(struct Scsi_Host *instance, spin_unlock_irq(&hostdata->lock); /* - * The initiator shall then wait at least two deskew delays and release + * The initiator shall then wait at least two deskew delays and release * the BSY signal. */ udelay(1); /* wingel -- wait two bus deskew delay >2*45ns */ @@ -1138,17 +1138,17 @@ static struct scsi_cmnd *NCR5380_select(struct Scsi_Host *instance, /* Reset BSY */ NCR5380_write(INITIATOR_COMMAND_REG, (ICR_BASE | ICR_ASSERT_DATA | ICR_ASSERT_ATN | ICR_ASSERT_SEL)); - /* + /* * Something weird happens when we cease to drive BSY - looks - * like the board/chip is letting us do another read before the + * like the board/chip is letting us do another read before the * appropriate propagation delay has expired, and we're confusing * a BSY signal from ourselves as the target's response to SELECTION. * * A small delay (the 'C++' frontend breaks the pipeline with an * unnecessary jump, making it work on my 386-33/Trantor T128, the - * tighter 'C' code breaks and requires this) solves the problem - - * the 1 us delay is arbitrary, and only used because this delay will - * be the same on other platforms and since it works here, it should + * tighter 'C' code breaks and requires this) solves the problem - + * the 1 us delay is arbitrary, and only used because this delay will + * be the same on other platforms and since it works here, it should * work there. * * wingel suggests that this could be due to failing to wait @@ -1159,8 +1159,8 @@ static struct scsi_cmnd *NCR5380_select(struct Scsi_Host *instance, dsprintk(NDEBUG_SELECTION, instance, "selecting target %d\n", scmd_id(cmd)); - /* - * The SCSI specification calls for a 250 ms timeout for the actual + /* + * The SCSI specification calls for a 250 ms timeout for the actual * selection. */ @@ -1191,9 +1191,9 @@ static struct scsi_cmnd *NCR5380_select(struct Scsi_Host *instance, goto out; } - /* - * No less than two deskew delays after the initiator detects the - * BSY signal is true, it shall release the SEL signal and may + /* + * No less than two deskew delays after the initiator detects the + * BSY signal is true, it shall release the SEL signal and may * change the DATA BUS. -wingel */ @@ -1202,11 +1202,11 @@ static struct scsi_cmnd *NCR5380_select(struct Scsi_Host *instance, NCR5380_write(INITIATOR_COMMAND_REG, ICR_BASE | ICR_ASSERT_ATN); /* - * Since we followed the SCSI spec, and raised ATN while SEL + * Since we followed the SCSI spec, and raised ATN while SEL * was true but before BSY was false during selection, the information * transfer phase should be a MESSAGE OUT phase so that we can send the * IDENTIFY message. - * + * * If SCSI-II tagged queuing is enabled, we also send a SIMPLE_QUEUE_TAG * message (2 bytes) with a tag ID that we increment with every command * until it wraps back to 0. @@ -1259,16 +1259,16 @@ out: return cmd; } -/* - * Function : int NCR5380_transfer_pio (struct Scsi_Host *instance, +/* + * Function : int NCR5380_transfer_pio (struct Scsi_Host *instance, * unsigned char *phase, int *count, unsigned char **data) * * Purpose : transfers data in given phase using polled I/O * - * Inputs : instance - instance of driver, *phase - pointer to - * what phase is expected, *count - pointer to number of + * Inputs : instance - instance of driver, *phase - pointer to + * what phase is expected, *count - pointer to number of * bytes to transfer, **data - pointer to data pointer. - * + * * Returns : -1 when different phase is entered without transferring * maximum number of bytes, 0 if all bytes or transferred or exit * is in same phase. @@ -1279,7 +1279,7 @@ out: */ /* - * Note : this code is not as quick as it could be, however it + * Note : this code is not as quick as it could be, however it * IS 100% reliable, and for the actual data transfer where speed * counts, we will always do a pseudo DMA or DMA transfer. */ @@ -1289,8 +1289,8 @@ static int NCR5380_transfer_pio(struct Scsi_Host *instance, unsigned char *phase int c = *count; unsigned char *d = *data; - /* - * The NCR5380 chip will only drive the SCSI bus when the + /* + * The NCR5380 chip will only drive the SCSI bus when the * phase specified in the appropriate bits of the TARGET COMMAND * REGISTER match the STATUS REGISTER */ @@ -1298,9 +1298,9 @@ static int NCR5380_transfer_pio(struct Scsi_Host *instance, unsigned char *phase NCR5380_write(TARGET_COMMAND_REG, PHASE_SR_TO_TCR(p)); do { - /* - * Wait for assertion of REQ, after which the phase bits will be - * valid + /* + * Wait for assertion of REQ, after which the phase bits will be + * valid */ if (NCR5380_poll_politely(instance, STATUS_REG, SR_REQ, SR_REQ, HZ) < 0) @@ -1322,7 +1322,7 @@ static int NCR5380_transfer_pio(struct Scsi_Host *instance, unsigned char *phase ++d; - /* + /* * The SCSI standard suggests that in MSGOUT phase, the initiator * should drop ATN on the last byte of the message phase * after REQ has been asserted for the handshake but before @@ -1351,11 +1351,11 @@ static int NCR5380_transfer_pio(struct Scsi_Host *instance, unsigned char *phase dsprintk(NDEBUG_HANDSHAKE, instance, "REQ negated, handshake complete\n"); /* - * We have several special cases to consider during REQ/ACK handshaking : - * 1. We were in MSGOUT phase, and we are on the last byte of the + * We have several special cases to consider during REQ/ACK handshaking : + * 1. We were in MSGOUT phase, and we are on the last byte of the * message. ATN must be dropped as ACK is dropped. * - * 2. We are in a MSGIN phase, and we are on the last byte of the + * 2. We are in a MSGIN phase, and we are on the last byte of the * message. We must exit with ACK asserted, so that the calling * code may raise ATN before dropping ACK to reject the message. * @@ -1400,7 +1400,7 @@ static int NCR5380_transfer_pio(struct Scsi_Host *instance, unsigned char *phase * it. When the driver is initialized, the NCR5380_intr() handler has not yet * been installed. And when in EH we may have released the ST DMA interrupt. */ - + static void do_reset(struct Scsi_Host *instance) { unsigned long flags; @@ -1432,12 +1432,12 @@ static int do_abort(struct Scsi_Host *instance) /* Request message out phase */ NCR5380_write(INITIATOR_COMMAND_REG, ICR_BASE | ICR_ASSERT_ATN); - /* - * Wait for the target to indicate a valid phase by asserting - * REQ. Once this happens, we'll have either a MSGOUT phase - * and can immediately send the ABORT message, or we'll have some + /* + * Wait for the target to indicate a valid phase by asserting + * REQ. Once this happens, we'll have either a MSGOUT phase + * and can immediately send the ABORT message, or we'll have some * other phase and will have to source/sink data. - * + * * We really don't care what value was on the bus or what value * the target sees, so we just handshake. */ @@ -1447,7 +1447,7 @@ static int do_abort(struct Scsi_Host *instance) goto timeout; tmp = NCR5380_read(STATUS_REG) & PHASE_MASK; - + NCR5380_write(TARGET_COMMAND_REG, PHASE_SR_TO_TCR(tmp)); if (tmp != PHASE_MSGOUT) { @@ -1476,17 +1476,17 @@ timeout: } #if defined(REAL_DMA) || defined(PSEUDO_DMA) || defined (REAL_DMA_POLL) -/* - * Function : int NCR5380_transfer_dma (struct Scsi_Host *instance, +/* + * Function : int NCR5380_transfer_dma (struct Scsi_Host *instance, * unsigned char *phase, int *count, unsigned char **data) * * Purpose : transfers data in given phase using either real * or pseudo DMA. * - * Inputs : instance - instance of driver, *phase - pointer to - * what phase is expected, *count - pointer to number of + * Inputs : instance - instance of driver, *phase - pointer to + * what phase is expected, *count - pointer to number of * bytes to transfer, **data - pointer to data pointer. - * + * * Returns : -1 when different phase is entered without transferring * maximum number of bytes, 0 if all bytes or transferred or exit * is in same phase. @@ -1533,7 +1533,7 @@ static int NCR5380_transfer_dma(struct Scsi_Host *instance, unsigned char *phase #else /* * Note : on my sample board, watch-dog timeouts occurred when interrupts - * were not disabled for the duration of a single DMA transfer, from + * were not disabled for the duration of a single DMA transfer, from * before the setting of DMA mode to after transfer of the last byte. */ @@ -1546,7 +1546,7 @@ static int NCR5380_transfer_dma(struct Scsi_Host *instance, unsigned char *phase dprintk(NDEBUG_DMA, "scsi%d : mode reg = 0x%X\n", instance->host_no, NCR5380_read(MODE_REG)); - /* + /* * On the PAS16 at least I/O recovery delays are not needed here. * Everyone else seems to want them. */ @@ -1661,24 +1661,24 @@ static int NCR5380_transfer_dma(struct Scsi_Host *instance, unsigned char *phase hostdata->flags & FLAG_NO_DMA_FIXUP ? c : c - 1); if (!foo && !(hostdata->flags & FLAG_NO_DMA_FIXUP)) { /* - * We can't disable DMA mode after successfully transferring + * We can't disable DMA mode after successfully transferring * what we plan to be the last byte, since that would open up - * a race condition where if the target asserted REQ before + * a race condition where if the target asserted REQ before * we got the DMA mode reset, the NCR5380 would have latched * an additional byte into the INPUT DATA register and we'd * have dropped it. - * - * The workaround was to transfer one fewer bytes than we - * intended to with the pseudo-DMA read function, wait for + * + * The workaround was to transfer one fewer bytes than we + * intended to with the pseudo-DMA read function, wait for * the chip to latch the last byte, read it, and then disable * pseudo-DMA mode. - * + * * After REQ is asserted, the NCR5380 asserts DRQ and ACK. * REQ is deasserted when ACK is asserted, and not reasserted * until ACK goes false. Since the NCR5380 won't lower ACK * until DACK is asserted, which won't happen unless we twiddle - * the DMA port or we take the NCR5380 out of DMA mode, we - * can guarantee that we won't handshake another extra + * the DMA port or we take the NCR5380 out of DMA mode, we + * can guarantee that we won't handshake another extra * byte. */ @@ -1698,8 +1698,8 @@ static int NCR5380_transfer_dma(struct Scsi_Host *instance, unsigned char *phase foo = NCR5380_pwrite(instance, d, c); if (!foo && !(hostdata->flags & FLAG_NO_DMA_FIXUP)) { /* - * Wait for the last byte to be sent. If REQ is being asserted for - * the byte we're interested, we'll ACK it and it will go false. + * Wait for the last byte to be sent. If REQ is being asserted for + * the byte we're interested, we'll ACK it and it will go false. */ if (NCR5380_poll_politely2(instance, BUS_AND_STATUS_REG, BASR_DRQ, BASR_DRQ, @@ -1723,17 +1723,17 @@ static int NCR5380_transfer_dma(struct Scsi_Host *instance, unsigned char *phase /* * Function : NCR5380_information_transfer (struct Scsi_Host *instance) * - * Purpose : run through the various SCSI phases and do as the target - * directs us to. Operates on the currently connected command, + * Purpose : run through the various SCSI phases and do as the target + * directs us to. Operates on the currently connected command, * instance->connected. * * Inputs : instance, instance for which we are doing commands * - * Side effects : SCSI things happen, the disconnected queue will be + * Side effects : SCSI things happen, the disconnected queue will be * modified if a command disconnects, *instance->connected will * change. * - * XXX Note : we need to watch for bus free or a reset condition here + * XXX Note : we need to watch for bus free or a reset condition here * to recover from an unexpected bus free condition. */ @@ -1780,7 +1780,7 @@ static void NCR5380_information_transfer(struct Scsi_Host *instance) { return; #endif case PHASE_DATAIN: - /* + /* * If there is no room left in the current buffer in the * scatter-gather list, move onto the next one. */ @@ -1795,7 +1795,7 @@ static void NCR5380_information_transfer(struct Scsi_Host *instance) { cmd->SCp.buffers_residual); } /* - * The preferred transfer method is going to be + * The preferred transfer method is going to be * PSEUDO-DMA for systems that are strictly PIO, * since we can let the hardware do the handshaking. * @@ -1871,8 +1871,8 @@ static void NCR5380_information_transfer(struct Scsi_Host *instance) { complete_cmd(instance, cmd); } - /* - * Restore phase bits to 0 so an interrupted selection, + /* + * Restore phase bits to 0 so an interrupted selection, * arbitration can resume. */ NCR5380_write(TARGET_COMMAND_REG, 0); @@ -1903,8 +1903,8 @@ static void NCR5380_information_transfer(struct Scsi_Host *instance) { instance, "connected command %p for target %d lun %llu moved to disconnected queue\n", cmd, scmd_id(cmd), cmd->device->lun); - /* - * Restore phase bits to 0 so an interrupted selection, + /* + * Restore phase bits to 0 so an interrupted selection, * arbitration can resume. */ NCR5380_write(TARGET_COMMAND_REG, 0); @@ -1913,14 +1913,14 @@ static void NCR5380_information_transfer(struct Scsi_Host *instance) { NCR5380_write(SELECT_ENABLE_REG, hostdata->id_mask); return; } - /* + /* * The SCSI data pointer is *IMPLICITLY* saved on a disconnect - * operation, in violation of the SCSI spec so we can safely + * operation, in violation of the SCSI spec so we can safely * ignore SAVE/RESTORE pointers calls. * - * Unfortunately, some disks violate the SCSI spec and + * Unfortunately, some disks violate the SCSI spec and * don't issue the required SAVE_POINTERS message before - * disconnecting, and we have to break spec to remain + * disconnecting, and we have to break spec to remain * compatible. */ case SAVE_POINTERS: @@ -1983,8 +1983,8 @@ static void NCR5380_information_transfer(struct Scsi_Host *instance) { /* Fall through to reject message */ - /* - * If we get something weird that we aren't expecting, + /* + * If we get something weird that we aren't expecting, * reject it. */ default: @@ -2021,10 +2021,10 @@ static void NCR5380_information_transfer(struct Scsi_Host *instance) { case PHASE_CMDOUT: len = cmd->cmd_len; data = cmd->cmnd; - /* - * XXX for performance reasons, on machines with a - * PSEUDO-DMA architecture we should probably - * use the dma transfer function. + /* + * XXX for performance reasons, on machines with a + * PSEUDO-DMA architecture we should probably + * use the dma transfer function. */ NCR5380_transfer_pio(instance, &phase, &len, &data); break; @@ -2049,10 +2049,10 @@ static void NCR5380_information_transfer(struct Scsi_Host *instance) { /* * Function : void NCR5380_reselect (struct Scsi_Host *instance) * - * Purpose : does reselection, initializing the instance->connected + * Purpose : does reselection, initializing the instance->connected * field to point to the scsi_cmnd for which the I_T_L or I_T_L_Q * nexus has been reestablished, - * + * * Inputs : instance - this instance of the NCR5380. */ @@ -2077,7 +2077,7 @@ static void NCR5380_reselect(struct Scsi_Host *instance) { dsprintk(NDEBUG_RESELECTION, instance, "reselect\n"); - /* + /* * At this point, we have detected that our SCSI ID is on the bus, * SEL is true and BSY was false for at least one bus settle delay * (400 ns). @@ -2172,7 +2172,7 @@ static void NCR5380_reselect(struct Scsi_Host *instance) { * Function : void NCR5380_dma_complete (struct Scsi_Host *instance) * * Purpose : called by interrupt handler when DMA finishes or a phase - * mismatch occurs (which would finish the DMA transfer). + * mismatch occurs (which would finish the DMA transfer). * * Inputs : instance - this instance of the NCR5380. * @@ -2190,7 +2190,7 @@ static void NCR5380_dma_complete(NCR5380_instance * instance) { * * Wait for final byte to transfer, ie wait for ACK to go false. * - * We should use the Last Byte Sent bit, unfortunately this is + * We should use the Last Byte Sent bit, unfortunately this is * not available on the 5380/5381 (only the various CMOS chips) * * FIXME: timeout, and need to handle long timeout/irq case -- cgit v1.1