X-Git-Url: https://err.no/cgi-bin/gitweb.cgi?a=blobdiff_plain;f=drivers%2Fata%2Fpata_acpi.c;h=c5f91e629945040130f53a28bd6bc7b920f87b36;hb=2cca775baecbfede2fec20c99add709232311fe7;hp=e4542ab9c7f840fcf59102c8e92bb6422f79ff48;hpb=b2451e4399d7233cd0008823872f51112d18f8d0;p=linux-2.6 diff --git a/drivers/ata/pata_acpi.c b/drivers/ata/pata_acpi.c index e4542ab9c7..c5f91e6299 100644 --- a/drivers/ata/pata_acpi.c +++ b/drivers/ata/pata_acpi.c @@ -47,7 +47,7 @@ static int pacpi_pre_reset(struct ata_link *link, unsigned long deadline) if (ap->acpi_handle == NULL || ata_acpi_gtm(ap, &acpi->gtm) < 0) return -ENODEV; - return ata_std_prereset(link, deadline); + return ata_sff_prereset(link, deadline); } /** @@ -67,31 +67,6 @@ static int pacpi_cable_detect(struct ata_port *ap) return ATA_CBL_PATA40; } -/** - * pacpi_error_handler - Setup and error handler - * @ap: Port to handle - * - * LOCKING: - * None (inherited from caller). - */ - -static void pacpi_error_handler(struct ata_port *ap) -{ - return ata_bmdma_drive_eh(ap, pacpi_pre_reset, ata_std_softreset, - NULL, ata_std_postreset); -} - -/* Welcome to ACPI, bring a bucket */ -static const unsigned int pio_cycle[7] = { - 600, 383, 240, 180, 120, 100, 80 -}; -static const unsigned int mwdma_cycle[5] = { - 480, 150, 120, 100, 80 -}; -static const unsigned int udma_cycle[7] = { - 120, 80, 60, 45, 30, 20, 15 -}; - /** * pacpi_discover_modes - filter non ACPI modes * @adev: ATA device @@ -103,56 +78,20 @@ static const unsigned int udma_cycle[7] = { static unsigned long pacpi_discover_modes(struct ata_port *ap, struct ata_device *adev) { - int unit = adev->devno; struct pata_acpi *acpi = ap->private_data; - int i; - u32 t; - unsigned long mask = (0x7f << ATA_SHIFT_UDMA) | (0x7 << ATA_SHIFT_MWDMA) | (0x1F << ATA_SHIFT_PIO); - struct ata_acpi_gtm probe; + unsigned int xfer_mask; probe = acpi->gtm; - /* We always use the 0 slot for crap hardware */ - if (!(probe.flags & 0x10)) - unit = 0; - ata_acpi_gtm(ap, &probe); - /* Start by scanning for PIO modes */ - for (i = 0; i < 7; i++) { - t = probe.drive[unit].pio; - if (t <= pio_cycle[i]) { - mask |= (2 << (ATA_SHIFT_PIO + i)) - 1; - break; - } - } + xfer_mask = ata_acpi_gtm_xfermask(adev, &probe); - /* See if we have MWDMA or UDMA data. We don't bother with MWDMA - if UDMA is availabe as this means the BIOS set UDMA and our - error changedown if it works is UDMA to PIO anyway */ - if (probe.flags & (1 << (2 * unit))) { - /* MWDMA */ - for (i = 0; i < 5; i++) { - t = probe.drive[unit].dma; - if (t <= mwdma_cycle[i]) { - mask |= (2 << (ATA_SHIFT_MWDMA + i)) - 1; - break; - } - } - } else { - /* UDMA */ - for (i = 0; i < 7; i++) { - t = probe.drive[unit].dma; - if (t <= udma_cycle[i]) { - mask |= (2 << (ATA_SHIFT_UDMA + i)) - 1; - break; - } - } - } - if (mask & (0xF8 << ATA_SHIFT_UDMA)) + if (xfer_mask & (0xF8 << ATA_SHIFT_UDMA)) ap->cbl = ATA_CBL_PATA80; - return mask; + + return xfer_mask; } /** @@ -167,7 +106,7 @@ static unsigned long pacpi_discover_modes(struct ata_port *ap, struct ata_device static unsigned long pacpi_mode_filter(struct ata_device *adev, unsigned long mask) { struct pata_acpi *acpi = adev->link->ap->private_data; - return ata_pci_default_filter(adev, mask & acpi->mask[adev->devno]); + return ata_bmdma_mode_filter(adev, mask & acpi->mask[adev->devno]); } /** @@ -180,12 +119,14 @@ static void pacpi_set_piomode(struct ata_port *ap, struct ata_device *adev) { int unit = adev->devno; struct pata_acpi *acpi = ap->private_data; + const struct ata_timing *t; if (!(acpi->gtm.flags & 0x10)) unit = 0; /* Now stuff the nS values into the structure */ - acpi->gtm.drive[unit].pio = pio_cycle[adev->pio_mode - XFER_PIO_0]; + t = ata_timing_find_mode(adev->pio_mode); + acpi->gtm.drive[unit].pio = t->cycle; ata_acpi_stm(ap, &acpi->gtm); /* See what mode we actually got */ ata_acpi_gtm(ap, &acpi->gtm); @@ -201,16 +142,18 @@ static void pacpi_set_dmamode(struct ata_port *ap, struct ata_device *adev) { int unit = adev->devno; struct pata_acpi *acpi = ap->private_data; + const struct ata_timing *t; if (!(acpi->gtm.flags & 0x10)) unit = 0; /* Now stuff the nS values into the structure */ + t = ata_timing_find_mode(adev->dma_mode); if (adev->dma_mode >= XFER_UDMA_0) { - acpi->gtm.drive[unit].dma = udma_cycle[adev->dma_mode - XFER_UDMA_0]; + acpi->gtm.drive[unit].dma = t->udma; acpi->gtm.flags |= (1 << (2 * unit)); } else { - acpi->gtm.drive[unit].dma = mwdma_cycle[adev->dma_mode - XFER_MW_DMA_0]; + acpi->gtm.drive[unit].dma = t->cycle; acpi->gtm.flags &= ~(1 << (2 * unit)); } ata_acpi_stm(ap, &acpi->gtm); @@ -219,7 +162,7 @@ static void pacpi_set_dmamode(struct ata_port *ap, struct ata_device *adev) } /** - * pacpi_qc_issue_prot - command issue + * pacpi_qc_issue - command issue * @qc: command pending * * Called when the libata layer is about to issue a command. We wrap @@ -227,14 +170,14 @@ static void pacpi_set_dmamode(struct ata_port *ap, struct ata_device *adev) * neccessary. */ -static unsigned int pacpi_qc_issue_prot(struct ata_queued_cmd *qc) +static unsigned int pacpi_qc_issue(struct ata_queued_cmd *qc) { struct ata_port *ap = qc->ap; struct ata_device *adev = qc->dev; struct pata_acpi *acpi = ap->private_data; if (acpi->gtm.flags & 0x10) - return ata_qc_issue_prot(qc); + return ata_sff_qc_issue(qc); if (adev != acpi->last) { pacpi_set_piomode(ap, adev); @@ -242,7 +185,7 @@ static unsigned int pacpi_qc_issue_prot(struct ata_queued_cmd *qc) pacpi_set_dmamode(ap, adev); acpi->last = adev; } - return ata_qc_issue_prot(qc); + return ata_sff_qc_issue(qc); } /** @@ -275,57 +218,17 @@ static int pacpi_port_start(struct ata_port *ap) } static struct scsi_host_template pacpi_sht = { - .module = THIS_MODULE, - .name = DRV_NAME, - .ioctl = ata_scsi_ioctl, - .queuecommand = ata_scsi_queuecmd, - .can_queue = ATA_DEF_QUEUE, - .this_id = ATA_SHT_THIS_ID, - .sg_tablesize = LIBATA_MAX_PRD, - .cmd_per_lun = ATA_SHT_CMD_PER_LUN, - .emulated = ATA_SHT_EMULATED, - .use_clustering = ATA_SHT_USE_CLUSTERING, - .proc_name = DRV_NAME, - .dma_boundary = ATA_DMA_BOUNDARY, - .slave_configure = ata_scsi_slave_config, - .slave_destroy = ata_scsi_slave_destroy, - /* Use standard CHS mapping rules */ - .bios_param = ata_std_bios_param, + ATA_BMDMA_SHT(DRV_NAME), }; -static const struct ata_port_operations pacpi_ops = { +static struct ata_port_operations pacpi_ops = { + .inherits = &ata_bmdma_port_ops, + .qc_issue = pacpi_qc_issue, + .cable_detect = pacpi_cable_detect, + .mode_filter = pacpi_mode_filter, .set_piomode = pacpi_set_piomode, .set_dmamode = pacpi_set_dmamode, - .mode_filter = pacpi_mode_filter, - - /* Task file is PCI ATA format, use helpers */ - .tf_load = ata_tf_load, - .tf_read = ata_tf_read, - .check_status = ata_check_status, - .exec_command = ata_exec_command, - .dev_select = ata_std_dev_select, - - .freeze = ata_bmdma_freeze, - .thaw = ata_bmdma_thaw, - .error_handler = pacpi_error_handler, - .post_internal_cmd = ata_bmdma_post_internal_cmd, - .cable_detect = pacpi_cable_detect, - - /* BMDMA handling is PCI ATA format, use helpers */ - .bmdma_setup = ata_bmdma_setup, - .bmdma_start = ata_bmdma_start, - .bmdma_stop = ata_bmdma_stop, - .bmdma_status = ata_bmdma_status, - .qc_prep = ata_qc_prep, - .qc_issue = pacpi_qc_issue_prot, - .data_xfer = ata_data_xfer, - - /* Timeout handling */ - .irq_handler = ata_interrupt, - .irq_clear = ata_bmdma_irq_clear, - .irq_on = ata_irq_on, - - /* Generic PATA PCI ATA helpers */ + .prereset = pacpi_pre_reset, .port_start = pacpi_port_start, }; @@ -347,7 +250,6 @@ static const struct ata_port_operations pacpi_ops = { static int pacpi_init_one (struct pci_dev *pdev, const struct pci_device_id *id) { static const struct ata_port_info info = { - .sht = &pacpi_sht, .flags = ATA_FLAG_SLAVE_POSS | ATA_FLAG_SRST, .pio_mask = 0x1f, @@ -357,7 +259,7 @@ static int pacpi_init_one (struct pci_dev *pdev, const struct pci_device_id *id) .port_ops = &pacpi_ops, }; const struct ata_port_info *ppi[] = { &info, NULL }; - return ata_pci_init_one(pdev, ppi); + return ata_pci_sff_init_one(pdev, ppi, &pacpi_sht, NULL); } static const struct pci_device_id pacpi_pci_tbl[] = {