From 35c9b4daf4c94b30e5cede597d98016ebf31b5ad Mon Sep 17 00:00:00 2001 From: Bartlomiej Zolnierkiewicz Date: Tue, 31 Mar 2009 20:15:19 +0200 Subject: ide: add ->dma_clear method and remove ->dma_timeout one All custom ->dma_timeout implementations call the generic one thus it is possible to have only an optional method for resetting DMA engine instead: * Add ->dma_clear method and convert hpt366, pdc202xx_old and sl82c105 host drivers to use it. * Always use ide_dma_timeout() in ide_dma_timeout_retry() and remove ->dma_timeout method. * Make ide_dma_timeout() static. There should be no functional changes caused by this patch. Acked-by: Sergei Shtylyov Signed-off-by: Bartlomiej Zolnierkiewicz --- drivers/ide/ns87415.c | 1 - 1 file changed, 1 deletion(-) (limited to 'drivers/ide/ns87415.c') diff --git a/drivers/ide/ns87415.c b/drivers/ide/ns87415.c index 7b65fe5bf449..9039a373020f 100644 --- a/drivers/ide/ns87415.c +++ b/drivers/ide/ns87415.c @@ -306,7 +306,6 @@ static const struct ide_dma_ops ns87415_dma_ops = { .dma_test_irq = ide_dma_test_irq, .dma_lost_irq = ide_dma_lost_irq, .dma_timer_expiry = ide_dma_sff_timer_expiry, - .dma_timeout = ide_dma_timeout, .dma_sff_read_status = superio_dma_sff_read_status, }; -- cgit v1.2.3 From 4453011f959a5f5c6c7a33aea54fe17f5e43a867 Mon Sep 17 00:00:00 2001 From: Bartlomiej Zolnierkiewicz Date: Tue, 31 Mar 2009 20:15:20 +0200 Subject: ide: destroy DMA mappings after ending DMA (v2) Move ide_destroy_dmatable() call out from ->dma_end method to {ide_pc,cdrom_newpc,ide_dma}_intr(), ide_dma_timeout_retry() and sgiioc4_resetproc(). This causes minor/safe behavior changes w.r.t.: * cmd64x.c::cmd64{8,x}_dma_end() * cs5536.c::cs5536_dma_end() * icside.c::icside_dma_end() * it821x.c::it821x_dma_end() * scc_pata.c::__scc_dma_end() * sl82c105.c::sl82c105_dma_end() * tx4939ide.c::tx4939ide_dma_end() v2: * Fix build for CONFIG_BLK_DEV_IDEDMA=n (reported by Randy Dunlap). Cc: Randy Dunlap Acked-by: Sergei Shtylyov Signed-off-by: Bartlomiej Zolnierkiewicz --- drivers/ide/ns87415.c | 2 -- 1 file changed, 2 deletions(-) (limited to 'drivers/ide/ns87415.c') diff --git a/drivers/ide/ns87415.c b/drivers/ide/ns87415.c index 9039a373020f..9ad71a74f93f 100644 --- a/drivers/ide/ns87415.c +++ b/drivers/ide/ns87415.c @@ -210,8 +210,6 @@ static int ns87415_dma_end(ide_drive_t *drive) /* from ERRATA: clear the INTR & ERROR bits */ dma_cmd = inb(hwif->dma_base + ATA_DMA_CMD); outb(dma_cmd | 6, hwif->dma_base + ATA_DMA_CMD); - /* and free any DMA resources */ - ide_destroy_dmatable(drive); /* verify good DMA status */ return (dma_stat & 7) != 4; } -- cgit v1.2.3 From a6d67ffa7dfe9515d8f2051a76b14c82b748475a Mon Sep 17 00:00:00 2001 From: Bartlomiej Zolnierkiewicz Date: Tue, 31 Mar 2009 20:15:20 +0200 Subject: ns87415: use custom ->dma_{start,end} to handle ns87415_prepare_drive() Use custom ->dma_{start,end} methods to handle ns87415_prepare_drive() there instead of in ->dma_setup method. Acked-by: Sergei Shtylyov Signed-off-by: Bartlomiej Zolnierkiewicz --- drivers/ide/ns87415.c | 24 +++++++++++------------- 1 file changed, 11 insertions(+), 13 deletions(-) (limited to 'drivers/ide/ns87415.c') diff --git a/drivers/ide/ns87415.c b/drivers/ide/ns87415.c index 9ad71a74f93f..6e0f372d2f09 100644 --- a/drivers/ide/ns87415.c +++ b/drivers/ide/ns87415.c @@ -196,6 +196,12 @@ static void ns87415_selectproc (ide_drive_t *drive) !!(drive->dev_flags & IDE_DFLAG_USING_DMA)); } +static void ns87415_dma_start(ide_drive_t *drive) +{ + ns87415_prepare_drive(drive, 1); + ide_dma_start(drive); +} + static int ns87415_dma_end(ide_drive_t *drive) { ide_hwif_t *hwif = drive->hwif; @@ -210,19 +216,11 @@ static int ns87415_dma_end(ide_drive_t *drive) /* from ERRATA: clear the INTR & ERROR bits */ dma_cmd = inb(hwif->dma_base + ATA_DMA_CMD); outb(dma_cmd | 6, hwif->dma_base + ATA_DMA_CMD); - /* verify good DMA status */ - return (dma_stat & 7) != 4; -} -static int ns87415_dma_setup(ide_drive_t *drive, struct ide_cmd *cmd) -{ - /* select DMA xfer */ - ns87415_prepare_drive(drive, 1); - if (ide_dma_setup(drive, cmd) == 0) - return 0; - /* DMA failed: select PIO xfer */ ns87415_prepare_drive(drive, 0); - return 1; + + /* verify good DMA status */ + return (dma_stat & 7) != 4; } static void __devinit init_hwif_ns87415 (ide_hwif_t *hwif) @@ -298,8 +296,8 @@ static const struct ide_port_ops ns87415_port_ops = { static const struct ide_dma_ops ns87415_dma_ops = { .dma_host_set = ide_dma_host_set, - .dma_setup = ns87415_dma_setup, - .dma_start = ide_dma_start, + .dma_setup = ide_dma_setup, + .dma_start = ns87415_dma_start, .dma_end = ns87415_dma_end, .dma_test_irq = ide_dma_test_irq, .dma_lost_irq = ide_dma_lost_irq, -- cgit v1.2.3 From 88b4132e101e60e8fa67996ae3072ab6b71e8500 Mon Sep 17 00:00:00 2001 From: Bartlomiej Zolnierkiewicz Date: Tue, 31 Mar 2009 20:15:22 +0200 Subject: ide: set/clear drive->waiting_for_dma flag in the core code Set/clear drive->waiting_for_dma flag in the core code instead of in ->dma_setup and ->dma_end methods. There should be no functional changes caused by this patch. Acked-by: Sergei Shtylyov Signed-off-by: Bartlomiej Zolnierkiewicz --- drivers/ide/ns87415.c | 1 - 1 file changed, 1 deletion(-) (limited to 'drivers/ide/ns87415.c') diff --git a/drivers/ide/ns87415.c b/drivers/ide/ns87415.c index 6e0f372d2f09..cbc1d1110385 100644 --- a/drivers/ide/ns87415.c +++ b/drivers/ide/ns87415.c @@ -207,7 +207,6 @@ static int ns87415_dma_end(ide_drive_t *drive) ide_hwif_t *hwif = drive->hwif; u8 dma_stat = 0, dma_cmd = 0; - drive->waiting_for_dma = 0; dma_stat = hwif->dma_ops->dma_sff_read_status(hwif); /* get DMA command mode */ dma_cmd = inb(hwif->dma_base + ATA_DMA_CMD); -- cgit v1.2.3 From 4d74c3fcf2b90487eacec511bc8c07177711c81c Mon Sep 17 00:00:00 2001 From: Sergei Shtylyov Date: Tue, 31 Mar 2009 20:15:29 +0200 Subject: ide: use ATA_HOB Make use of ATA_HOB instead of hard-coded value in the tf_read() method. Signed-off-by: Sergei Shtylyov Signed-off-by: Bartlomiej Zolnierkiewicz --- drivers/ide/ns87415.c | 4 ++-- 1 file changed, 2 insertions(+), 2 deletions(-) (limited to 'drivers/ide/ns87415.c') diff --git a/drivers/ide/ns87415.c b/drivers/ide/ns87415.c index cbc1d1110385..13a9e00efa13 100644 --- a/drivers/ide/ns87415.c +++ b/drivers/ide/ns87415.c @@ -74,7 +74,7 @@ static void superio_tf_read(ide_drive_t *drive, struct ide_cmd *cmd) } /* be sure we're looking at the low order bits */ - outb(ATA_DEVCTL_OBS & ~0x80, io_ports->ctl_addr); + outb(ATA_DEVCTL_OBS, io_ports->ctl_addr); if (cmd->tf_flags & IDE_TFLAG_IN_FEATURE) tf->feature = inb(io_ports->feature_addr); @@ -90,7 +90,7 @@ static void superio_tf_read(ide_drive_t *drive, struct ide_cmd *cmd) tf->device = superio_ide_inb(io_ports->device_addr); if (cmd->tf_flags & IDE_TFLAG_LBA48) { - outb(ATA_DEVCTL_OBS | 0x80, io_ports->ctl_addr); + outb(ATA_HOB | ATA_DEVCTL_OBS, io_ports->ctl_addr); if (cmd->tf_flags & IDE_TFLAG_IN_HOB_FEATURE) tf->hob_feature = inb(io_ports->feature_addr); -- cgit v1.2.3 From ecf3a31d2a08a419bdf919456f1724f5b72bde2c Mon Sep 17 00:00:00 2001 From: Sergei Shtylyov Date: Tue, 31 Mar 2009 20:15:30 +0200 Subject: ide: turn set_irq() method into write_devctl() method Turn set_irq() method with its software reset hack into write_devctl() method (for just writing a value into the device control register) at last... Signed-off-by: Sergei Shtylyov Signed-off-by: Bartlomiej Zolnierkiewicz --- drivers/ide/ns87415.c | 3 +-- 1 file changed, 1 insertion(+), 2 deletions(-) (limited to 'drivers/ide/ns87415.c') diff --git a/drivers/ide/ns87415.c b/drivers/ide/ns87415.c index 13a9e00efa13..00ab0be7335a 100644 --- a/drivers/ide/ns87415.c +++ b/drivers/ide/ns87415.c @@ -109,8 +109,7 @@ static const struct ide_tp_ops superio_tp_ops = { .exec_command = ide_exec_command, .read_status = superio_read_status, .read_altstatus = ide_read_altstatus, - - .set_irq = ide_set_irq, + .write_devctl = ide_write_devctl, .tf_load = ide_tf_load, .tf_read = superio_tf_read, -- cgit v1.2.3 From 6762511934e6e7287ce3c8baac0d52ef64e3787b Mon Sep 17 00:00:00 2001 From: Sergei Shtylyov Date: Tue, 31 Mar 2009 20:15:30 +0200 Subject: ide: rename IDE_TFLAG_IN_[HOB_]FEATURE The feature register has never been readable -- when its location is read, one gets the error register value; hence rename IDE_TFLAG_IN_[HOB_]FEATURE into IDE_TFLAG_IN_[HOB_]ERROR and introduce the 'hob_error' field into the 'struct ide_taskfile' (despite the error register not really depending on the HOB bit). Signed-off-by: Sergei Shtylyov Signed-off-by: Bartlomiej Zolnierkiewicz --- drivers/ide/ns87415.c | 16 ++++++++-------- 1 file changed, 8 insertions(+), 8 deletions(-) (limited to 'drivers/ide/ns87415.c') diff --git a/drivers/ide/ns87415.c b/drivers/ide/ns87415.c index 00ab0be7335a..0a6cf74c3265 100644 --- a/drivers/ide/ns87415.c +++ b/drivers/ide/ns87415.c @@ -76,8 +76,8 @@ static void superio_tf_read(ide_drive_t *drive, struct ide_cmd *cmd) /* be sure we're looking at the low order bits */ outb(ATA_DEVCTL_OBS, io_ports->ctl_addr); - if (cmd->tf_flags & IDE_TFLAG_IN_FEATURE) - tf->feature = inb(io_ports->feature_addr); + if (cmd->tf_flags & IDE_TFLAG_IN_ERROR) + tf->error = inb(io_ports->feature_addr); if (cmd->tf_flags & IDE_TFLAG_IN_NSECT) tf->nsect = inb(io_ports->nsect_addr); if (cmd->tf_flags & IDE_TFLAG_IN_LBAL) @@ -92,16 +92,16 @@ static void superio_tf_read(ide_drive_t *drive, struct ide_cmd *cmd) if (cmd->tf_flags & IDE_TFLAG_LBA48) { outb(ATA_HOB | ATA_DEVCTL_OBS, io_ports->ctl_addr); - if (cmd->tf_flags & IDE_TFLAG_IN_HOB_FEATURE) - tf->hob_feature = inb(io_ports->feature_addr); + if (cmd->tf_flags & IDE_TFLAG_IN_HOB_ERROR) + tf->hob_error = inb(io_ports->feature_addr); if (cmd->tf_flags & IDE_TFLAG_IN_HOB_NSECT) - tf->hob_nsect = inb(io_ports->nsect_addr); + tf->hob_nsect = inb(io_ports->nsect_addr); if (cmd->tf_flags & IDE_TFLAG_IN_HOB_LBAL) - tf->hob_lbal = inb(io_ports->lbal_addr); + tf->hob_lbal = inb(io_ports->lbal_addr); if (cmd->tf_flags & IDE_TFLAG_IN_HOB_LBAM) - tf->hob_lbam = inb(io_ports->lbam_addr); + tf->hob_lbam = inb(io_ports->lbam_addr); if (cmd->tf_flags & IDE_TFLAG_IN_HOB_LBAH) - tf->hob_lbah = inb(io_ports->lbah_addr); + tf->hob_lbah = inb(io_ports->lbah_addr); } } -- cgit v1.2.3 From bac08cee93f9cb37b40ecfa8eaf1f6d8daf3909b Mon Sep 17 00:00:00 2001 From: Sergei Shtylyov Date: Tue, 31 Mar 2009 20:15:31 +0200 Subject: ide: call {in|out}put_data() methods from tf_{read|load}() methods (take 2) Handle IDE_FTFLAG_{IN|OUT}_DATA flags in tf_{read|load}() methods by calling {in|out}put_data() methods to transfer 2 bytes -- this will allow us to move that handling out of those methods altogether... Signed-off-by: Sergei Shtylyov Signed-off-by: Bartlomiej Zolnierkiewicz --- drivers/ide/ns87415.c | 8 +++++--- 1 file changed, 5 insertions(+), 3 deletions(-) (limited to 'drivers/ide/ns87415.c') diff --git a/drivers/ide/ns87415.c b/drivers/ide/ns87415.c index 0a6cf74c3265..7d64bc079fa8 100644 --- a/drivers/ide/ns87415.c +++ b/drivers/ide/ns87415.c @@ -67,10 +67,12 @@ static void superio_tf_read(ide_drive_t *drive, struct ide_cmd *cmd) struct ide_taskfile *tf = &cmd->tf; if (cmd->ftf_flags & IDE_FTFLAG_IN_DATA) { - u16 data = inw(io_ports->data_addr); + u8 data[2]; - tf->data = data & 0xff; - tf->hob_data = (data >> 8) & 0xff; + ide_input_data(drive, cmd, data, 2); + + tf->data = data[0]; + tf->hob_data = data[1]; } /* be sure we're looking at the low order bits */ -- cgit v1.2.3 From 35218d1ca808ed19b8c6f079ce91872b3deb2219 Mon Sep 17 00:00:00 2001 From: Sergei Shtylyov Date: Tue, 31 Mar 2009 20:15:31 +0200 Subject: ide: move data register access out of tf_{read|load}() methods (take 2) Move IDE_FTFLAG_{IN|OUT}_DATA flag handling out of tf_{read|load}() methods into the only two functions where these flags actually need to be handled: do_rw_taskfile() and ide_complete_cmd()... Signed-off-by: Sergei Shtylyov Signed-off-by: Bartlomiej Zolnierkiewicz --- drivers/ide/ns87415.c | 9 --------- 1 file changed, 9 deletions(-) (limited to 'drivers/ide/ns87415.c') diff --git a/drivers/ide/ns87415.c b/drivers/ide/ns87415.c index 7d64bc079fa8..9f6dff83b141 100644 --- a/drivers/ide/ns87415.c +++ b/drivers/ide/ns87415.c @@ -66,15 +66,6 @@ static void superio_tf_read(ide_drive_t *drive, struct ide_cmd *cmd) struct ide_io_ports *io_ports = &drive->hwif->io_ports; struct ide_taskfile *tf = &cmd->tf; - if (cmd->ftf_flags & IDE_FTFLAG_IN_DATA) { - u8 data[2]; - - ide_input_data(drive, cmd, data, 2); - - tf->data = data[0]; - tf->hob_data = data[1]; - } - /* be sure we're looking at the low order bits */ outb(ATA_DEVCTL_OBS, io_ports->ctl_addr); -- cgit v1.2.3 From abb596b25edac1ec1acc4ef53df190771661c3d2 Mon Sep 17 00:00:00 2001 From: Sergei Shtylyov Date: Tue, 31 Mar 2009 20:15:32 +0200 Subject: ide: turn selectproc() method into dev_select() method (take 5) Turn selectproc() method into dev_select() method by teaching it to write to the device register and moving it from 'struct ide_port_ops' to 'struct ide_tp_ops'. Signed-off-by: Sergei Shtylyov Cc: benh@kernel.crashing.org Cc: petkovbb@gmail.com [bart: add ->dev_select to at91_ide.c and tx4939.c (__BIG_ENDIAN case)] Signed-off-by: Bartlomiej Zolnierkiewicz --- drivers/ide/ns87415.c | 25 ++++++++++++++++++++----- 1 file changed, 20 insertions(+), 5 deletions(-) (limited to 'drivers/ide/ns87415.c') diff --git a/drivers/ide/ns87415.c b/drivers/ide/ns87415.c index 9f6dff83b141..af1b421eb450 100644 --- a/drivers/ide/ns87415.c +++ b/drivers/ide/ns87415.c @@ -98,12 +98,15 @@ static void superio_tf_read(ide_drive_t *drive, struct ide_cmd *cmd) } } +static void ns87415_dev_select(ide_drive_t *drive); + static const struct ide_tp_ops superio_tp_ops = { .exec_command = ide_exec_command, .read_status = superio_read_status, .read_altstatus = ide_read_altstatus, .write_devctl = ide_write_devctl, + .dev_select = ns87415_dev_select, .tf_load = ide_tf_load, .tf_read = superio_tf_read, @@ -182,10 +185,12 @@ static void ns87415_prepare_drive (ide_drive_t *drive, unsigned int use_dma) local_irq_restore(flags); } -static void ns87415_selectproc (ide_drive_t *drive) +static void ns87415_dev_select(ide_drive_t *drive) { ns87415_prepare_drive(drive, !!(drive->dev_flags & IDE_DFLAG_USING_DMA)); + + outb(drive->select | ATA_DEVICE_OBS, drive->hwif->io_ports.device_addr); } static void ns87415_dma_start(ide_drive_t *drive) @@ -229,7 +234,7 @@ static void __devinit init_hwif_ns87415 (ide_hwif_t *hwif) * Also, leave IRQ masked during drive probing, to prevent infinite * interrupts from a potentially floating INTA.. * - * IRQs get unmasked in selectproc when drive is first used. + * IRQs get unmasked in dev_select() when drive is first used. */ (void) pci_read_config_dword(dev, 0x40, &ctrl); (void) pci_read_config_byte(dev, 0x09, &progif); @@ -281,8 +286,18 @@ static void __devinit init_hwif_ns87415 (ide_hwif_t *hwif) outb(0x60, hwif->dma_base + ATA_DMA_STATUS); } -static const struct ide_port_ops ns87415_port_ops = { - .selectproc = ns87415_selectproc, +static const struct ide_tp_ops ns87415_tp_ops = { + .exec_command = ide_exec_command, + .read_status = ide_read_status, + .read_altstatus = ide_read_altstatus, + .write_devctl = ide_write_devctl, + + .dev_select = ns87415_dev_select, + .tf_load = ide_tf_load, + .tf_read = ide_tf_read, + + .input_data = ide_input_data, + .output_data = ide_output_data, }; static const struct ide_dma_ops ns87415_dma_ops = { @@ -299,7 +314,7 @@ static const struct ide_dma_ops ns87415_dma_ops = { static const struct ide_port_info ns87415_chipset __devinitdata = { .name = DRV_NAME, .init_hwif = init_hwif_ns87415, - .port_ops = &ns87415_port_ops, + .tp_ops = &ns87415_tp_ops, .dma_ops = &ns87415_dma_ops, .host_flags = IDE_HFLAG_TRUST_BIOS_FOR_DMA | IDE_HFLAG_NO_ATAPI_DMA, -- cgit v1.2.3 From fdd88f0af616db59a6a36bdf0185181d2b779f53 Mon Sep 17 00:00:00 2001 From: Sergei Shtylyov Date: Tue, 31 Mar 2009 20:15:33 +0200 Subject: ide: inline SELECT_DRIVE() Since SELECT_DRIVE() has boiled down to a mere dev_select() method call, it now makes sense to just inline it... Signed-off-by: Sergei Shtylyov Signed-off-by: Bartlomiej Zolnierkiewicz --- drivers/ide/ns87415.c | 2 +- 1 file changed, 1 insertion(+), 1 deletion(-) (limited to 'drivers/ide/ns87415.c') diff --git a/drivers/ide/ns87415.c b/drivers/ide/ns87415.c index af1b421eb450..71a39fb3856f 100644 --- a/drivers/ide/ns87415.c +++ b/drivers/ide/ns87415.c @@ -262,7 +262,7 @@ static void __devinit init_hwif_ns87415 (ide_hwif_t *hwif) #ifdef __sparc_v9__ /* * XXX: Reset the device, if we don't it will not respond to - * SELECT_DRIVE() properly during first ide_probe_port(). + * dev_select() properly during first ide_probe_port(). */ timeout = 10000; outb(12, hwif->io_ports.ctl_addr); -- cgit v1.2.3