X-Git-Url: http://ftp.safe.ca/?a=blobdiff_plain;f=drivers%2Fata%2Fpata_mpiix.c;h=b21f0021f54aed850dd6e2825491f829e2a02d84;hb=d7636e0b0769e0f4f437ff33168d723f86e7c080;hp=8a82fcd4fa314623903c4032b4e8c72013c80621;hpb=6d32d30f55020d766388df7515f771f68c973033;p=safe%2Fjmp%2Flinux-2.6 diff --git a/drivers/ata/pata_mpiix.c b/drivers/ata/pata_mpiix.c index 8a82fcd..b21f002 100644 --- a/drivers/ata/pata_mpiix.c +++ b/drivers/ata/pata_mpiix.c @@ -1,7 +1,7 @@ /* * pata_mpiix.c - Intel MPIIX PATA for new ATA layer * (C) 2005-2006 Red Hat Inc - * Alan Cox + * Alan Cox * * The MPIIX is different enough to the PIIX4 and friends that we give it * a separate driver. The old ide/pci code handles this by just not tuning @@ -35,7 +35,7 @@ #include #define DRV_NAME "pata_mpiix" -#define DRV_VERSION "0.7.6" +#define DRV_VERSION "0.7.7" enum { IDETIM = 0x6C, /* IDE control register */ @@ -55,21 +55,7 @@ static int mpiix_pre_reset(struct ata_link *link, unsigned long deadline) if (!pci_test_config_bits(pdev, &mpiix_enable_bits)) return -ENOENT; - return ata_std_prereset(link, deadline); -} - -/** - * mpiix_error_handler - probe reset - * @ap: ATA port - * - * Perform the ATA probe and bus reset sequence plus specific handling - * for this hardware. The MPIIX has the enable bits in a different place - * to PIIX4 and friends. As a pure PIO device it has no cable detect - */ - -static void mpiix_error_handler(struct ata_port *ap) -{ - ata_bmdma_drive_eh(ap, mpiix_pre_reset, ata_std_softreset, NULL, ata_std_postreset); + return ata_sff_prereset(link, deadline); } /** @@ -83,8 +69,8 @@ static void mpiix_error_handler(struct ata_port *ap) * * This would get very ugly because we can only program timing for one * device at a time, the other gets PIO0. Fortunately libata calls - * our qc_issue_prot command before a command is issued so we can - * flip the timings back and forth to reduce the pain. + * our qc_issue command before a command is issued so we can flip the + * timings back and forth to reduce the pain. */ static void mpiix_set_piomode(struct ata_port *ap, struct ata_device *adev) @@ -124,17 +110,17 @@ static void mpiix_set_piomode(struct ata_port *ap, struct ata_device *adev) } /** - * mpiix_qc_issue_prot - command issue + * mpiix_qc_issue - command issue * @qc: command pending * * Called when the libata layer is about to issue a command. We wrap * this interface so that we can load the correct ATA timings if - * neccessary. Our logic also clears TIME0/TIME1 for the other device so + * necessary. Our logic also clears TIME0/TIME1 for the other device so * that, even if we get this wrong, cycles to the other device will * be made PIO0. */ -static unsigned int mpiix_qc_issue_prot(struct ata_queued_cmd *qc) +static unsigned int mpiix_qc_issue(struct ata_queued_cmd *qc) { struct ata_port *ap = qc->ap; struct ata_device *adev = qc->dev; @@ -147,51 +133,20 @@ static unsigned int mpiix_qc_issue_prot(struct ata_queued_cmd *qc) if (adev->pio_mode && adev != ap->private_data) mpiix_set_piomode(ap, adev); - return ata_qc_issue_prot(qc); + return ata_sff_qc_issue(qc); } static struct scsi_host_template mpiix_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, - .bios_param = ata_std_bios_param, + ATA_PIO_SHT(DRV_NAME), }; static struct ata_port_operations mpiix_port_ops = { - .port_disable = ata_port_disable, - .set_piomode = mpiix_set_piomode, - - .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 = mpiix_error_handler, - .post_internal_cmd = ata_bmdma_post_internal_cmd, + .inherits = &ata_sff_port_ops, + .qc_issue = mpiix_qc_issue, .cable_detect = ata_cable_40wire, - - .qc_prep = ata_qc_prep, - .qc_issue = mpiix_qc_issue_prot, - .data_xfer = ata_data_xfer, - - .irq_clear = ata_bmdma_irq_clear, - .irq_on = ata_irq_on, - - .port_start = ata_port_start, + .set_piomode = mpiix_set_piomode, + .prereset = mpiix_pre_reset, + .sff_data_xfer = ata_sff_data_xfer32, }; static int mpiix_init_one(struct pci_dev *dev, const struct pci_device_id *id) @@ -202,7 +157,7 @@ static int mpiix_init_one(struct pci_dev *dev, const struct pci_device_id *id) struct ata_port *ap; void __iomem *cmd_addr, *ctl_addr; u16 idetim; - int irq; + int cmd, ctl, irq; if (!printed_version++) dev_printk(KERN_DEBUG, &dev->dev, "version " DRV_VERSION "\n"); @@ -210,6 +165,7 @@ static int mpiix_init_one(struct pci_dev *dev, const struct pci_device_id *id) host = ata_host_alloc(&dev->dev, 1); if (!host) return -ENOMEM; + ap = host->ports[0]; /* MPIIX has many functions which can be turned on or off according to other devices present. Make sure IDE is enabled before we try @@ -221,27 +177,30 @@ static int mpiix_init_one(struct pci_dev *dev, const struct pci_device_id *id) /* See if it's primary or secondary channel... */ if (!(idetim & SECONDARY)) { + cmd = 0x1F0; + ctl = 0x3F6; irq = 14; - cmd_addr = devm_ioport_map(&dev->dev, 0x1F0, 8); - ctl_addr = devm_ioport_map(&dev->dev, 0x3F6, 1); } else { + cmd = 0x170; + ctl = 0x376; irq = 15; - cmd_addr = devm_ioport_map(&dev->dev, 0x170, 8); - ctl_addr = devm_ioport_map(&dev->dev, 0x376, 1); } + cmd_addr = devm_ioport_map(&dev->dev, cmd, 8); + ctl_addr = devm_ioport_map(&dev->dev, ctl, 1); if (!cmd_addr || !ctl_addr) return -ENOMEM; + ata_port_desc(ap, "cmd 0x%x ctl 0x%x", cmd, ctl); + /* We do our own plumbing to avoid leaking special cases for whacko ancient hardware into the core code. There are two issues to worry about. #1 The chip is a bridge so if in legacy mode and without BARs set fools the setup. #2 If you pci_disable_device the MPIIX your box goes castors up */ - ap = host->ports[0]; ap->ops = &mpiix_port_ops; - ap->pio_mask = 0x1F; + ap->pio_mask = ATA_PIO4; ap->flags |= ATA_FLAG_SLAVE_POSS; ap->ioaddr.cmd_addr = cmd_addr; @@ -249,10 +208,10 @@ static int mpiix_init_one(struct pci_dev *dev, const struct pci_device_id *id) ap->ioaddr.altstatus_addr = ctl_addr; /* Let libata fill in the port details */ - ata_std_ports(&ap->ioaddr); + ata_sff_std_ports(&ap->ioaddr); /* activate host */ - return ata_host_activate(host, irq, ata_interrupt, IRQF_SHARED, + return ata_host_activate(host, irq, ata_sff_interrupt, IRQF_SHARED, &mpiix_sht); }