#define DRV_NAME "pata_ali"
#define DRV_VERSION "0.7.5"
+static int ali_atapi_dma = 0;
+module_param_named(atapi_dma, ali_atapi_dma, int, 0644);
+MODULE_PARM_DESC(atapi_dma, "Enable ATAPI DMA (0=disable, 1=enable)");
+
/*
* Cable special cases
*/
ata_id_c_string(adev->id, model_num, ATA_ID_PROD, sizeof(model_num));
if (strstr(model_num, "WDC"))
return mask &= ~ATA_MASK_UDMA;
- return ata_pci_default_filter(adev, mask);
+ return ata_bmdma_mode_filter(adev, mask);
}
/**
u8 udma;
if (t != NULL) {
- t->setup = FIT(t->setup, 1, 8) & 7;
- t->act8b = FIT(t->act8b, 1, 8) & 7;
- t->rec8b = FIT(t->rec8b, 1, 16) & 15;
- t->active = FIT(t->active, 1, 8) & 7;
- t->recover = FIT(t->recover, 1, 16) & 15;
+ t->setup = clamp_val(t->setup, 1, 8) & 7;
+ t->act8b = clamp_val(t->act8b, 1, 8) & 7;
+ t->rec8b = clamp_val(t->rec8b, 1, 16) & 15;
+ t->active = clamp_val(t->active, 1, 8) & 7;
+ t->recover = clamp_val(t->recover, 1, 16) & 15;
pci_write_config_byte(pdev, cas, t->setup);
pci_write_config_byte(pdev, cbt, (t->act8b << 4) | t->rec8b);
}
}
+/**
+ * ali_warn_atapi_dma - Warn about ATAPI DMA disablement
+ * @adev: Device
+ *
+ * Whine about ATAPI DMA disablement if @adev is an ATAPI device.
+ * Can be used as ->dev_config.
+ */
+
+static void ali_warn_atapi_dma(struct ata_device *adev)
+{
+ struct ata_eh_context *ehc = &adev->link->eh_context;
+ int print_info = ehc->i.flags & ATA_EHI_PRINTINFO;
+
+ if (print_info && adev->class == ATA_DEV_ATAPI && !ali_atapi_dma) {
+ ata_dev_printk(adev, KERN_WARNING,
+ "WARNING: ATAPI DMA disabled for reliablity issues. It can be enabled\n");
+ ata_dev_printk(adev, KERN_WARNING,
+ "WARNING: via pata_ali.atapi_dma modparam or corresponding sysfs node.\n");
+ }
+}
+
/**
* ali_lock_sectors - Keep older devices to 255 sector mode
* @adev: Device
static void ali_lock_sectors(struct ata_device *adev)
{
adev->max_sectors = 255;
+ ali_warn_atapi_dma(adev);
}
/**
static int ali_check_atapi_dma(struct ata_queued_cmd *qc)
{
+ if (!ali_atapi_dma) {
+ /* FIXME: pata_ali can't do ATAPI DMA reliably but the
+ * IDE alim15x3 driver can. I tried lots of things
+ * but couldn't find what the actual difference was.
+ * If you got an idea, please write it to
+ * linux-ide@vger.kernel.org and cc htejun@gmail.com.
+ *
+ * Disable ATAPI DMA for now.
+ */
+ return -EOPNOTSUPP;
+ }
+
/* If its not a media command, its not worth it */
if (atapi_cmd_type(qc->cdb[0]) == ATAPI_MISC)
return -EOPNOTSUPP;
}
static struct scsi_host_template ali_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_BMDMA_SHT(DRV_NAME),
};
/*
*/
static struct ata_port_operations ali_early_port_ops = {
- .set_piomode = ali_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 = ata_bmdma_error_handler,
- .post_internal_cmd = ata_bmdma_post_internal_cmd,
+ .inherits = &ata_sff_port_ops,
.cable_detect = ata_cable_40wire,
+ .set_piomode = ali_set_piomode,
+};
- .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,
+static const struct ata_port_operations ali_dma_base_ops = {
+ .inherits = &ata_bmdma_port_ops,
+ .set_piomode = ali_set_piomode,
+ .set_dmamode = ali_set_dmamode,
};
/*
* detect
*/
static struct ata_port_operations ali_20_port_ops = {
- .set_piomode = ali_set_piomode,
- .set_dmamode = ali_set_dmamode,
+ .inherits = &ali_dma_base_ops,
+ .cable_detect = ata_cable_40wire,
.mode_filter = ali_20_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,
+ .check_atapi_dma = ali_check_atapi_dma,
.dev_config = ali_lock_sectors,
-
- .freeze = ata_bmdma_freeze,
- .thaw = ata_bmdma_thaw,
- .error_handler = ata_bmdma_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,
};
/*
* Port operations for DMA capable ALi with cable detect
*/
static struct ata_port_operations ali_c2_port_ops = {
- .set_piomode = ali_set_piomode,
- .set_dmamode = ali_set_dmamode,
- .mode_filter = ata_pci_default_filter,
- .tf_load = ata_tf_load,
- .tf_read = ata_tf_read,
+ .inherits = &ali_dma_base_ops,
.check_atapi_dma = ali_check_atapi_dma,
- .check_status = ata_check_status,
- .exec_command = ata_exec_command,
- .dev_select = ata_std_dev_select,
- .dev_config = ali_lock_sectors,
-
- .freeze = ata_bmdma_freeze,
- .thaw = ata_bmdma_thaw,
- .error_handler = ata_bmdma_error_handler,
- .post_internal_cmd = ata_bmdma_post_internal_cmd,
.cable_detect = ali_c2_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,
+ .dev_config = ali_lock_sectors,
};
/*
* Port operations for DMA capable ALi with cable detect and LBA48
*/
static struct ata_port_operations ali_c5_port_ops = {
- .set_piomode = ali_set_piomode,
- .set_dmamode = ali_set_dmamode,
- .mode_filter = ata_pci_default_filter,
- .tf_load = ata_tf_load,
- .tf_read = ata_tf_read,
+ .inherits = &ali_dma_base_ops,
.check_atapi_dma = ali_check_atapi_dma,
- .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 = ata_bmdma_error_handler,
- .post_internal_cmd = ata_bmdma_post_internal_cmd,
+ .dev_config = ali_warn_atapi_dma,
.cable_detect = ali_c2_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,
};
}
pci_dev_put(isa_bridge);
pci_dev_put(north);
- ata_pci_clear_simplex(pdev);
+ ata_pci_bmdma_clear_simplex(pdev);
}
/**
* ali_init_one - discovery callback
static int ali_init_one(struct pci_dev *pdev, const struct pci_device_id *id)
{
static const struct ata_port_info info_early = {
- .sht = &ali_sht,
.flags = ATA_FLAG_SLAVE_POSS,
.pio_mask = 0x1f,
.port_ops = &ali_early_port_ops
};
/* Revision 0x20 added DMA */
static const struct ata_port_info info_20 = {
- .sht = &ali_sht,
.flags = ATA_FLAG_SLAVE_POSS | ATA_FLAG_PIO_LBA48,
.pio_mask = 0x1f,
.mwdma_mask = 0x07,
};
/* Revision 0x20 with support logic added UDMA */
static const struct ata_port_info info_20_udma = {
- .sht = &ali_sht,
.flags = ATA_FLAG_SLAVE_POSS | ATA_FLAG_PIO_LBA48,
.pio_mask = 0x1f,
.mwdma_mask = 0x07,
};
/* Revision 0xC2 adds UDMA66 */
static const struct ata_port_info info_c2 = {
- .sht = &ali_sht,
.flags = ATA_FLAG_SLAVE_POSS | ATA_FLAG_PIO_LBA48,
.pio_mask = 0x1f,
.mwdma_mask = 0x07,
};
/* Revision 0xC3 is UDMA66 for now */
static const struct ata_port_info info_c3 = {
- .sht = &ali_sht,
.flags = ATA_FLAG_SLAVE_POSS | ATA_FLAG_PIO_LBA48,
.pio_mask = 0x1f,
.mwdma_mask = 0x07,
};
/* Revision 0xC4 is UDMA100 */
static const struct ata_port_info info_c4 = {
- .sht = &ali_sht,
.flags = ATA_FLAG_SLAVE_POSS | ATA_FLAG_PIO_LBA48,
.pio_mask = 0x1f,
.mwdma_mask = 0x07,
};
/* Revision 0xC5 is UDMA133 with LBA48 DMA */
static const struct ata_port_info info_c5 = {
- .sht = &ali_sht,
.flags = ATA_FLAG_SLAVE_POSS,
.pio_mask = 0x1f,
.mwdma_mask = 0x07,
const struct ata_port_info *ppi[] = { NULL, NULL };
u8 tmp;
struct pci_dev *isa_bridge;
+ int rc;
+
+ rc = pcim_enable_device(pdev);
+ if (rc)
+ return rc;
/*
* The chipset revision selects the driver operations and
ppi[0] = &info_20_udma;
pci_dev_put(isa_bridge);
}
- return ata_pci_init_one(pdev, ppi);
+ return ata_pci_sff_init_one(pdev, ppi, &ali_sht, NULL);
}
#ifdef CONFIG_PM
static int ali_reinit_one(struct pci_dev *pdev)
{
+ struct ata_host *host = dev_get_drvdata(&pdev->dev);
+ int rc;
+
+ rc = ata_pci_device_do_resume(pdev);
+ if (rc)
+ return rc;
ali_init_chipset(pdev);
- return ata_pci_device_resume(pdev);
+ ata_host_resume(host);
+ return 0;
}
#endif
projects / linux-2.6-omap-h63xx.git / blobdiff