X-Git-Url: http://git.rot13.org/?a=blobdiff_plain;f=drivers%2Fata%2Flibata-acpi.c;h=cb3eab6e379da2ab9ef8dd6b17021c2d7abaf6ad;hb=c55a0ddd8ebdd657224449c2fbfcd427e054c8cc;hp=b4e8be5d292c9293310e8a7b6fe9ead8ce2baeea;hpb=2874b391bd78a5b8cb84be67297a345fbdec4ac8;p=powerpc.git

diff --git a/drivers/ata/libata-acpi.c b/drivers/ata/libata-acpi.c
index b4e8be5d29..cb3eab6e37 100644
--- a/drivers/ata/libata-acpi.c
+++ b/drivers/ata/libata-acpi.c
@@ -34,6 +34,13 @@ struct taskfile_array {
 	u8	tfa[REGS_PER_GTF];	/* regs. 0x1f1 - 0x1f7 */
 };
 
+/*
+ *	Helper - belongs in the PCI layer somewhere eventually
+ */
+static int is_pci_dev(struct device *dev)
+{
+	return (dev->bus == &pci_bus_type);
+}
 
 /**
  * sata_get_dev_handle - finds acpi_handle and PCI device.function
@@ -53,6 +60,9 @@ static int sata_get_dev_handle(struct device *dev, acpi_handle *handle,
 	struct pci_dev	*pci_dev;
 	acpi_integer	addr;
 
+	if (!is_pci_dev(dev))
+		return -ENODEV;
+
 	pci_dev = to_pci_dev(dev);	/* NOTE: PCI-specific */
 	/* Please refer to the ACPI spec for the syntax of _ADR. */
 	addr = (PCI_SLOT(pci_dev->devfn) << 16) | PCI_FUNC(pci_dev->devfn);
@@ -84,7 +94,12 @@ static int pata_get_dev_handle(struct device *dev, acpi_handle *handle,
 	acpi_status status;
 	struct acpi_device_info	*dinfo = NULL;
 	int ret = -ENODEV;
-	struct pci_dev *pdev = to_pci_dev(dev);
+	struct pci_dev *pdev;
+
+	if (!is_pci_dev(dev))
+		return -ENODEV;
+
+	pdev = to_pci_dev(dev);
 
 	bus = pdev->bus->number;
 	devnum = PCI_SLOT(pdev->devfn);
@@ -290,13 +305,12 @@ static int do_drive_get_GTF(struct ata_port *ap, int ix,
 	*gtf_address = 0UL;
 	*obj_loc = 0UL;
 
-	if (noacpi)
+	if (libata_noacpi)
 		return 0;
 
 	if (ata_msg_probe(ap))
-		ata_dev_printk(atadev, KERN_DEBUG,
-			"%s: ENTER: ap->id: %d, port#: %d\n",
-			__FUNCTION__, ap->id, ap->port_no);
+		ata_dev_printk(atadev, KERN_DEBUG, "%s: ENTER: port#: %d\n",
+			       __FUNCTION__, ap->port_no);
 
 	if (!ata_dev_enabled(atadev) || (ap->flags & ATA_FLAG_DISABLED)) {
 		if (ata_msg_probe(ap))
@@ -456,6 +470,9 @@ static void taskfile_load_raw(struct ata_port *ap,
 				struct ata_device *atadev,
 				const struct taskfile_array *gtf)
 {
+	struct ata_taskfile tf;
+	unsigned int err;
+
 	if (ata_msg_probe(ap))
 		ata_dev_printk(atadev, KERN_DEBUG, "%s: (0x1f1-1f7): hex: "
 			"%02x %02x %02x %02x %02x %02x %02x\n",
@@ -468,35 +485,24 @@ static void taskfile_load_raw(struct ata_port *ap,
 	    && (gtf->tfa[6] == 0))
 		return;
 
-	if (ap->ops->qc_issue) {
-		struct ata_taskfile tf;
-		unsigned int err;
-
-		ata_tf_init(atadev, &tf);
-
-		/* convert gtf to tf */
-		tf.flags |= ATA_TFLAG_ISADDR | ATA_TFLAG_DEVICE; /* TBD */
-		tf.protocol = atadev->class == ATA_DEV_ATAPI ?
-			ATA_PROT_ATAPI_NODATA : ATA_PROT_NODATA;
-		tf.feature = gtf->tfa[0];	/* 0x1f1 */
-		tf.nsect   = gtf->tfa[1];	/* 0x1f2 */
-		tf.lbal    = gtf->tfa[2];	/* 0x1f3 */
-		tf.lbam    = gtf->tfa[3];	/* 0x1f4 */
-		tf.lbah    = gtf->tfa[4];	/* 0x1f5 */
-		tf.device  = gtf->tfa[5];	/* 0x1f6 */
-		tf.command = gtf->tfa[6];	/* 0x1f7 */
-
-		err = ata_exec_internal(atadev, &tf, NULL, DMA_NONE, NULL, 0);
-		if (err && ata_msg_probe(ap))
-			ata_dev_printk(atadev, KERN_ERR,
-				"%s: ata_exec_internal failed: %u\n",
-				__FUNCTION__, err);
-	} else
-		if (ata_msg_warn(ap))
-			ata_dev_printk(atadev, KERN_WARNING,
-				"%s: SATA driver is missing qc_issue function"
-				" entry points\n",
-				__FUNCTION__);
+	ata_tf_init(atadev, &tf);
+
+	/* convert gtf to tf */
+	tf.flags |= ATA_TFLAG_ISADDR | ATA_TFLAG_DEVICE; /* TBD */
+	tf.protocol = ATA_PROT_NODATA;
+	tf.feature = gtf->tfa[0];	/* 0x1f1 */
+	tf.nsect   = gtf->tfa[1];	/* 0x1f2 */
+	tf.lbal    = gtf->tfa[2];	/* 0x1f3 */
+	tf.lbam    = gtf->tfa[3];	/* 0x1f4 */
+	tf.lbah    = gtf->tfa[4];	/* 0x1f5 */
+	tf.device  = gtf->tfa[5];	/* 0x1f6 */
+	tf.command = gtf->tfa[6];	/* 0x1f7 */
+
+	err = ata_exec_internal(atadev, &tf, NULL, DMA_NONE, NULL, 0);
+	if (err && ata_msg_probe(ap))
+		ata_dev_printk(atadev, KERN_ERR,
+			"%s: ata_exec_internal failed: %u\n",
+			__FUNCTION__, err);
 }
 
 /**
@@ -521,11 +527,10 @@ static int do_drive_set_taskfiles(struct ata_port *ap,
 	struct taskfile_array	*gtf;
 
 	if (ata_msg_probe(ap))
-		ata_dev_printk(atadev, KERN_DEBUG,
-			"%s: ENTER: ap->id: %d, port#: %d\n",
-			__FUNCTION__, ap->id, ap->port_no);
+		ata_dev_printk(atadev, KERN_DEBUG, "%s: ENTER: port#: %d\n",
+			       __FUNCTION__, ap->port_no);
 
-	if (noacpi || !(ap->cbl == ATA_CBL_SATA))
+	if (libata_noacpi || !(ap->cbl == ATA_CBL_SATA))
 		return 0;
 
 	if (!ata_dev_enabled(atadev) || (ap->flags & ATA_FLAG_DISABLED))
@@ -568,7 +573,14 @@ int ata_acpi_exec_tfs(struct ata_port *ap)
 	unsigned long	gtf_address;
 	unsigned long	obj_loc;
 
-	if (noacpi)
+	if (libata_noacpi)
+		return 0;
+	/*
+	 * TBD - implement PATA support.  For now,
+	 * we should not run GTF on PATA devices since some
+	 * PATA require execution of GTM/STM before GTF.
+	 */
+	if (!(ap->cbl == ATA_CBL_SATA))
 		return 0;
 
 	for (ix = 0; ix < ATA_MAX_DEVICES; ix++) {
@@ -623,13 +635,12 @@ int ata_acpi_push_id(struct ata_port *ap, unsigned int ix)
 	struct acpi_object_list         input;
 	union acpi_object               in_params[1];
 
-	if (noacpi)
+	if (libata_noacpi)
 		return 0;
 
 	if (ata_msg_probe(ap))
-		ata_dev_printk(atadev, KERN_DEBUG,
-			"%s: ap->id: %d, ix = %d, port#: %d\n",
-			__FUNCTION__, ap->id, ix, ap->port_no);
+		ata_dev_printk(atadev, KERN_DEBUG, "%s: ix = %d, port#: %d\n",
+			       __FUNCTION__, ix, ap->port_no);
 
 	/* Don't continue if not a SATA device. */
 	if (!(ap->cbl == ATA_CBL_SATA)) {
@@ -685,9 +696,8 @@ int ata_acpi_push_id(struct ata_port *ap, unsigned int ix)
 	if (err < 0) {
 		if (ata_msg_probe(ap))
 			ata_dev_printk(atadev, KERN_DEBUG,
-				"ata%u(%u): %s _SDD error: status = 0x%x\n",
-				ap->id, ap->device->devno,
-				__FUNCTION__, status);
+				       "%s _SDD error: status = 0x%x\n",
+				       __FUNCTION__, status);
 	}
 
 	/* always return success */