/*
* pata_artop.c - ARTOP ATA controller driver
*
- * (C) 2006 Red Hat <alan@redhat.com>
+ * (C) 2006 Red Hat
* (C) 2007 Bartlomiej Zolnierkiewicz
*
* Based in part on drivers/ide/pci/aec62xx.c
* performance Alessandro Zummo <alessandro.zummo@towertech.it>
*
* TODO
- * 850 serialization once the core supports it
* Investigate no_dsc on 850R
* Clock detect
*/
#include <linux/ata.h>
#define DRV_NAME "pata_artop"
-#define DRV_VERSION "0.4.4"
+#define DRV_VERSION "0.4.5"
/*
* The ARTOP has 33 Mhz and "over clocked" timing tables. Until we
if (!pci_test_config_bits(pdev, &artop_enable_bits[ap->port_no]))
return -ENOENT;
- return ata_std_prereset(link, deadline);
-}
-
-/**
- * artop6210_error_handler - Probe specified port on PATA host controller
- * @ap: Port to probe
- *
- * LOCKING:
- * None (inherited from caller).
- */
-
-static void artop6210_error_handler(struct ata_port *ap)
-{
- ata_bmdma_drive_eh(ap, artop6210_pre_reset,
- ata_std_softreset, NULL,
- ata_std_postreset);
+ return ata_sff_prereset(link, deadline);
}
/**
if (pdev->device % 1 && !pci_test_config_bits(pdev, &artop_enable_bits[ap->port_no]))
return -ENOENT;
- return ata_std_prereset(link, deadline);
+ return ata_sff_prereset(link, deadline);
}
/**
}
/**
- * artop6260_error_handler - Probe specified port on PATA host controller
- * @ap: Port to probe
- *
- * LOCKING:
- * None (inherited from caller).
- */
-
-static void artop6260_error_handler(struct ata_port *ap)
-{
- ata_bmdma_drive_eh(ap, artop6260_pre_reset,
- ata_std_softreset, NULL,
- ata_std_postreset);
-}
-
-/**
* artop6210_load_piomode - Load a set of PATA PIO timings
* @ap: Port whose timings we are configuring
* @adev: Device
pci_write_config_byte(pdev, 0x44 + ap->port_no, ultra);
}
+/**
+ * artop_6210_qc_defer - implement serialization
+ * @qc: command
+ *
+ * Issue commands per host on this chip.
+ */
+
+static int artop6210_qc_defer(struct ata_queued_cmd *qc)
+{
+ struct ata_host *host = qc->ap->host;
+ struct ata_port *alt = host->ports[1 ^ qc->ap->port_no];
+ int rc;
+
+ /* First apply the usual rules */
+ rc = ata_std_qc_defer(qc);
+ if (rc != 0)
+ return rc;
+
+ /* Now apply serialization rules. Only allow a command if the
+ other channel state machine is idle */
+ if (alt && alt->qc_active)
+ return ATA_DEFER_PORT;
+ return 0;
+}
+
static struct scsi_host_template artop_sht = {
ATA_BMDMA_SHT(DRV_NAME),
};
-static const struct ata_port_operations artop6210_ops = {
+static struct ata_port_operations artop6210_ops = {
+ .inherits = &ata_bmdma_port_ops,
+ .cable_detect = ata_cable_40wire,
.set_piomode = artop6210_set_piomode,
.set_dmamode = artop6210_set_dmamode,
- .mode_filter = ata_pci_default_filter,
-
- .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 = artop6210_error_handler,
- .post_internal_cmd = ata_bmdma_post_internal_cmd,
- .cable_detect = ata_cable_40wire,
-
- .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 = ata_qc_issue_prot,
-
- .data_xfer = ata_data_xfer,
-
- .irq_handler = ata_interrupt,
- .irq_clear = ata_bmdma_irq_clear,
- .irq_on = ata_irq_on,
-
- .port_start = ata_sff_port_start,
+ .prereset = artop6210_pre_reset,
+ .qc_defer = artop6210_qc_defer,
};
-static const struct ata_port_operations artop6260_ops = {
+static struct ata_port_operations artop6260_ops = {
+ .inherits = &ata_bmdma_port_ops,
+ .cable_detect = artop6260_cable_detect,
.set_piomode = artop6260_set_piomode,
.set_dmamode = artop6260_set_dmamode,
- .mode_filter = ata_pci_default_filter,
-
- .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 = artop6260_error_handler,
- .post_internal_cmd = ata_bmdma_post_internal_cmd,
- .cable_detect = artop6260_cable_detect,
-
- .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 = ata_qc_issue_prot,
- .data_xfer = ata_data_xfer,
-
- .irq_handler = ata_interrupt,
- .irq_clear = ata_bmdma_irq_clear,
- .irq_on = ata_irq_on,
-
- .port_start = ata_sff_port_start,
+ .prereset = artop6260_pre_reset,
};
{
static int printed_version;
static const struct ata_port_info info_6210 = {
- .sht = &artop_sht,
.flags = ATA_FLAG_SLAVE_POSS,
- .pio_mask = 0x1f, /* pio0-4 */
- .mwdma_mask = 0x07, /* mwdma0-2 */
+ .pio_mask = ATA_PIO4,
+ .mwdma_mask = ATA_MWDMA2,
.udma_mask = ATA_UDMA2,
.port_ops = &artop6210_ops,
};
static const struct ata_port_info info_626x = {
- .sht = &artop_sht,
.flags = ATA_FLAG_SLAVE_POSS,
- .pio_mask = 0x1f, /* pio0-4 */
- .mwdma_mask = 0x07, /* mwdma0-2 */
+ .pio_mask = ATA_PIO4,
+ .mwdma_mask = ATA_MWDMA2,
.udma_mask = ATA_UDMA4,
.port_ops = &artop6260_ops,
};
static const struct ata_port_info info_628x = {
- .sht = &artop_sht,
.flags = ATA_FLAG_SLAVE_POSS,
- .pio_mask = 0x1f, /* pio0-4 */
- .mwdma_mask = 0x07, /* mwdma0-2 */
+ .pio_mask = ATA_PIO4,
+ .mwdma_mask = ATA_MWDMA2,
.udma_mask = ATA_UDMA5,
.port_ops = &artop6260_ops,
};
static const struct ata_port_info info_628x_fast = {
- .sht = &artop_sht,
.flags = ATA_FLAG_SLAVE_POSS,
- .pio_mask = 0x1f, /* pio0-4 */
- .mwdma_mask = 0x07, /* mwdma0-2 */
+ .pio_mask = ATA_PIO4,
+ .mwdma_mask = ATA_MWDMA2,
.udma_mask = ATA_UDMA6,
.port_ops = &artop6260_ops,
};
if (id->driver_data == 0) { /* 6210 variant */
ppi[0] = &info_6210;
- ppi[1] = &ata_dummy_port_info;
/* BIOS may have left us in UDMA, clear it before libata probe */
pci_write_config_byte(pdev, 0x54, 0);
- /* For the moment (also lacks dsc) */
- printk(KERN_WARNING "ARTOP 6210 requires serialize functionality not yet supported by libata.\n");
- printk(KERN_WARNING "Secondary ATA ports will not be activated.\n");
}
else if (id->driver_data == 1) /* 6260 */
ppi[0] = &info_626x;
BUG_ON(ppi[0] == NULL);
- return ata_pci_init_one(pdev, ppi);
+ return ata_pci_sff_init_one(pdev, ppi, &artop_sht, NULL);
}
static const struct pci_device_id artop_pci_tbl[] = {
git://ftp.safe.ca / safe / jmp / linux-2.6 / blobdiff