X-Git-Url: http://git.onelab.eu/?a=blobdiff_plain;f=drivers%2Fscsi%2Fsata_promise.c;h=a2eefb6bcb32146f883b5b729188205b33b0e5f6;hb=9bf4aaab3e101692164d49b7ca357651eb691cb6;hp=268b2c3457287fab96946f05ee646699c63448c7;hpb=db216c3d5e4c040e557a50f8f5d35d5c415e8c1c;p=linux-2.6.git

diff --git a/drivers/scsi/sata_promise.c b/drivers/scsi/sata_promise.c
index 268b2c345..a2eefb6bc 100644
--- a/drivers/scsi/sata_promise.c
+++ b/drivers/scsi/sata_promise.c
@@ -74,18 +74,19 @@ struct pdc_port_priv {
 static u32 pdc_sata_scr_read (struct ata_port *ap, unsigned int sc_reg);
 static void pdc_sata_scr_write (struct ata_port *ap, unsigned int sc_reg, u32 val);
 static int pdc_sata_init_one (struct pci_dev *pdev, const struct pci_device_id *ent);
-static void pdc_dma_setup(struct ata_queued_cmd *qc);
 static void pdc_dma_start(struct ata_queued_cmd *qc);
 static irqreturn_t pdc_interrupt (int irq, void *dev_instance, struct pt_regs *regs);
 static void pdc_eng_timeout(struct ata_port *ap);
 static int pdc_port_start(struct ata_port *ap);
 static void pdc_port_stop(struct ata_port *ap);
 static void pdc_phy_reset(struct ata_port *ap);
-static void pdc_fill_sg(struct ata_queued_cmd *qc);
+static void pdc_qc_prep(struct ata_queued_cmd *qc);
 static void pdc_tf_load_mmio(struct ata_port *ap, struct ata_taskfile *tf);
 static void pdc_exec_command_mmio(struct ata_port *ap, struct ata_taskfile *tf);
 static inline void pdc_dma_complete (struct ata_port *ap,
                                      struct ata_queued_cmd *qc, int have_err);
+static void pdc_irq_clear(struct ata_port *ap);
+static int pdc_qc_issue_prot(struct ata_queued_cmd *qc);
 
 static Scsi_Host_Template pdc_sata_sht = {
 	.module			= THIS_MODULE,
@@ -112,11 +113,11 @@ static struct ata_port_operations pdc_sata_ops = {
 	.check_status		= ata_check_status_mmio,
 	.exec_command		= pdc_exec_command_mmio,
 	.phy_reset		= pdc_phy_reset,
-	.bmdma_setup            = pdc_dma_setup,
-	.bmdma_start            = pdc_dma_start,
-	.fill_sg		= pdc_fill_sg,
+	.qc_prep		= pdc_qc_prep,
+	.qc_issue		= pdc_qc_issue_prot,
 	.eng_timeout		= pdc_eng_timeout,
 	.irq_handler		= pdc_interrupt,
+	.irq_clear		= pdc_irq_clear,
 	.scr_read		= pdc_sata_scr_read,
 	.scr_write		= pdc_sata_scr_write,
 	.port_start		= pdc_port_start,
@@ -261,14 +262,14 @@ static void pdc_sata_scr_write (struct ata_port *ap, unsigned int sc_reg,
 	writel(val, (void *) ap->ioaddr.scr_addr + (sc_reg * 4));
 }
 
-static void pdc_fill_sg(struct ata_queued_cmd *qc)
+static void pdc_qc_prep(struct ata_queued_cmd *qc)
 {
 	struct pdc_port_priv *pp = qc->ap->private_data;
 	unsigned int i;
 
 	VPRINTK("ENTER\n");
 
-	ata_fill_sg(qc);
+	ata_qc_prep(qc);
 
 	i = pdc_pkt_header(&qc->tf, qc->ap->prd_dma,  qc->dev->devno, pp->pkt);
 
@@ -378,6 +379,14 @@ static inline unsigned int pdc_host_intr( struct ata_port *ap,
         return handled;
 }
 
+static void pdc_irq_clear(struct ata_port *ap)
+{
+	struct ata_host_set *host_set = ap->host_set;
+	void *mmio = host_set->mmio_base;
+
+	readl(mmio + PDC_INT_SEQMASK);
+}
+
 static irqreturn_t pdc_interrupt (int irq, void *dev_instance, struct pt_regs *regs)
 {
 	struct ata_host_set *host_set = dev_instance;
@@ -431,13 +440,7 @@ static irqreturn_t pdc_interrupt (int irq, void *dev_instance, struct pt_regs *r
 	return IRQ_RETVAL(handled);
 }
 
-static void pdc_dma_setup(struct ata_queued_cmd *qc)
-{
-	/* nothing for now.  later, we will call standard
-	 * code in libata-core for ATAPI here */
-}
-
-static void pdc_dma_start(struct ata_queued_cmd *qc)
+static inline void pdc_dma_start(struct ata_queued_cmd *qc)
 {
 	struct ata_port *ap = qc->ap;
 	struct pdc_port_priv *pp = ap->private_data;
@@ -455,17 +458,35 @@ static void pdc_dma_start(struct ata_queued_cmd *qc)
 	readl((void *) ap->ioaddr.cmd_addr + PDC_PKT_SUBMIT); /* flush */
 }
 
+static int pdc_qc_issue_prot(struct ata_queued_cmd *qc)
+{
+	switch (qc->tf.protocol) {
+	case ATA_PROT_DMA:
+		pdc_dma_start(qc);
+		return 0;
+
+	case ATA_PROT_ATAPI_DMA:
+		BUG();
+		break;
+
+	default:
+		break;
+	}
+
+	return ata_qc_issue_prot(qc);
+}
+
 static void pdc_tf_load_mmio(struct ata_port *ap, struct ata_taskfile *tf)
 {
-	if (tf->protocol != ATA_PROT_DMA)
-		ata_tf_load_mmio(ap, tf);
+	WARN_ON (tf->protocol == ATA_PROT_DMA);
+	ata_tf_load_mmio(ap, tf);
 }
 
 
 static void pdc_exec_command_mmio(struct ata_port *ap, struct ata_taskfile *tf)
 {
-	if (tf->protocol != ATA_PROT_DMA)
-		ata_exec_command_mmio(ap, tf);
+	WARN_ON (tf->protocol == ATA_PROT_DMA);
+	ata_exec_command_mmio(ap, tf);
 }