#include <linux/libata.h>
#define DRV_NAME "pata_hpt3x3"
-#define DRV_VERSION "0.4.3"
+#define DRV_VERSION "0.5.3"
/**
* hpt3x3_set_piomode - PIO setup
pci_write_config_dword(pdev, 0x48, r2);
}
+#if defined(CONFIG_PATA_HPT3X3_DMA)
/**
* hpt3x3_set_dmamode - DMA timing setup
* @ap: ATA interface
*
* Set up the channel for MWDMA or UDMA modes. Much the same as with
* PIO, load the mode number and then set MWDMA or UDMA flag.
+ *
+ * 0x44 : bit 0-2 master mode, 3-5 slave mode, etc
+ * 0x48 : bit 4/0 DMA/UDMA bit 5/1 for slave etc
*/
static void hpt3x3_set_dmamode(struct ata_port *ap, struct ata_device *adev)
r2 &= ~(0x11 << dn); /* Clear MWDMA and UDMA bits */
if (adev->dma_mode >= XFER_UDMA_0)
- r2 |= 0x01 << dn; /* Ultra mode */
+ r2 |= (0x10 << dn); /* Ultra mode */
else
- r2 |= 0x10 << dn; /* MWDMA */
+ r2 |= (0x01 << dn); /* MWDMA */
pci_write_config_dword(pdev, 0x44, r1);
pci_write_config_dword(pdev, 0x48, r2);
}
+#endif /* CONFIG_PATA_HPT3X3_DMA */
+
+/**
+ * hpt3x3_atapi_dma - ATAPI DMA check
+ * @qc: Queued command
+ *
+ * Just say no - we don't do ATAPI DMA
+ */
+
+static int hpt3x3_atapi_dma(struct ata_queued_cmd *qc)
+{
+ return 1;
+}
static struct scsi_host_template hpt3x3_sht = {
.module = THIS_MODULE,
};
static struct ata_port_operations hpt3x3_port_ops = {
- .port_disable = ata_port_disable,
.set_piomode = hpt3x3_set_piomode,
+#if defined(CONFIG_PATA_HPT3X3_DMA)
.set_dmamode = hpt3x3_set_dmamode,
+#endif
.mode_filter = ata_pci_default_filter,
.tf_load = ata_tf_load,
.bmdma_start = ata_bmdma_start,
.bmdma_stop = ata_bmdma_stop,
.bmdma_status = ata_bmdma_status,
+ .check_atapi_dma= hpt3x3_atapi_dma,
.qc_prep = ata_qc_prep,
.qc_issue = ata_qc_issue_prot,
.irq_handler = ata_interrupt,
.irq_clear = ata_bmdma_irq_clear,
.irq_on = ata_irq_on,
- .irq_ack = ata_irq_ack,
- .port_start = ata_port_start,
+ .port_start = ata_sff_port_start,
};
/**
pci_write_config_byte(dev, PCI_LATENCY_TIMER, 0x20);
}
-
/**
* hpt3x3_init_one - Initialise an HPT343/363
- * @dev: PCI device
+ * @pdev: PCI device
* @id: Entry in match table
*
- * Perform basic initialisation. The chip has a quirk that it won't
- * function unless it is at XX00. The old ATA driver touched this up
- * but we leave it for pci quirks to do properly.
+ * Perform basic initialisation. We set the device up so we access all
+ * ports via BAR4. This is neccessary to work around errata.
*/
-static int hpt3x3_init_one(struct pci_dev *dev, const struct pci_device_id *id)
+static int hpt3x3_init_one(struct pci_dev *pdev, const struct pci_device_id *id)
{
+ static int printed_version;
static const struct ata_port_info info = {
.sht = &hpt3x3_sht,
.flags = ATA_FLAG_SLAVE_POSS,
.pio_mask = 0x1f,
+#if defined(CONFIG_PATA_HPT3X3_DMA)
+ /* Further debug needed */
.mwdma_mask = 0x07,
.udma_mask = 0x07,
+#endif
.port_ops = &hpt3x3_port_ops
};
+ /* Register offsets of taskfiles in BAR4 area */
+ static const u8 offset_cmd[2] = { 0x20, 0x28 };
+ static const u8 offset_ctl[2] = { 0x36, 0x3E };
const struct ata_port_info *ppi[] = { &info, NULL };
-
- hpt3x3_init_chipset(dev);
- /* Now kick off ATA set up */
- return ata_pci_init_one(dev, ppi);
+ struct ata_host *host;
+ int i, rc;
+ void __iomem *base;
+
+ hpt3x3_init_chipset(pdev);
+
+ if (!printed_version++)
+ dev_printk(KERN_DEBUG, &pdev->dev, "version " DRV_VERSION "\n");
+
+ host = ata_host_alloc_pinfo(&pdev->dev, ppi, 2);
+ if (!host)
+ return -ENOMEM;
+ /* acquire resources and fill host */
+ rc = pcim_enable_device(pdev);
+ if (rc)
+ return rc;
+
+ /* Everything is relative to BAR4 if we set up this way */
+ rc = pcim_iomap_regions(pdev, 1 << 4, DRV_NAME);
+ if (rc == -EBUSY)
+ pcim_pin_device(pdev);
+ if (rc)
+ return rc;
+ host->iomap = pcim_iomap_table(pdev);
+ rc = pci_set_dma_mask(pdev, ATA_DMA_MASK);
+ if (rc)
+ return rc;
+ rc = pci_set_consistent_dma_mask(pdev, ATA_DMA_MASK);
+ if (rc)
+ return rc;
+
+ base = host->iomap[4]; /* Bus mastering base */
+
+ for (i = 0; i < host->n_ports; i++) {
+ struct ata_port *ap = host->ports[i];
+ struct ata_ioports *ioaddr = &ap->ioaddr;
+
+ ioaddr->cmd_addr = base + offset_cmd[i];
+ ioaddr->altstatus_addr =
+ ioaddr->ctl_addr = base + offset_ctl[i];
+ ioaddr->scr_addr = NULL;
+ ata_std_ports(ioaddr);
+ ioaddr->bmdma_addr = base + 8 * i;
+
+ ata_port_pbar_desc(ap, 4, -1, "ioport");
+ ata_port_pbar_desc(ap, 4, offset_cmd[i], "cmd");
+ }
+ pci_set_master(pdev);
+ return ata_host_activate(host, pdev->irq, ata_interrupt, IRQF_SHARED,
+ &hpt3x3_sht);
}
#ifdef CONFIG_PM
projects / linux-2.6-omap-h63xx.git / blobdiff