sata_dwc_460ex: fix misuse of ata_get_cmd_descript()

The driver erroneously uses ata_get_cmd_descript() not only for printing out
the ATA commands but also the protocol and DMA direction enums. Add functions
for properly printing those out...

Signed-off-by: Sergei Shtylyov <sshtylyov@ru.mvista.com>
Signed-off-by: Jeff Garzik <jgarzik@redhat.com>

1 files changed, 46 insertions, 10 deletions

diff --git a/drivers/ata/sata_dwc_460ex.c b/drivers/ata/sata_dwc_460ex.c
index 34fc1372d72d..843af13606e1 100644
--- a/drivers/ata/sata_dwc_460ex.c
+++ b/drivers/ata/sata_dwc_460ex.c
@@ -44,7 +44,7 @@
 #undef  DRV_NAME
 #undef  DRV_VERSION
 #define DRV_NAME        "sata-dwc"
-#define DRV_VERSION     "1.2"
+#define DRV_VERSION     "1.3"
 
 /* SATA DMA driver Globals */
 #define DMA_NUM_CHANS           1
@@ -336,11 +336,47 @@ static int dma_dwc_xfer_setup(struct scatterlist *sg, int num_elems,
                               void __iomem *addr, int dir);
 static void dma_dwc_xfer_start(int dma_ch);
 
+static const char *get_prot_descript(u8 protocol)
+{
+        switch ((enum ata_tf_protocols)protocol) {
+        case ATA_PROT_NODATA:
+                return "ATA no data";
+        case ATA_PROT_PIO:
+                return "ATA PIO";
+        case ATA_PROT_DMA:
+                return "ATA DMA";
+        case ATA_PROT_NCQ:
+                return "ATA NCQ";
+        case ATAPI_PROT_NODATA:
+                return "ATAPI no data";
+        case ATAPI_PROT_PIO:
+                return "ATAPI PIO";
+        case ATAPI_PROT_DMA:
+                return "ATAPI DMA";
+        default:
+                return "unknown";
+        }
+}
+
+static const char *get_dma_dir_descript(int dma_dir)
+{
+        switch ((enum dma_data_direction)dma_dir) {
+        case DMA_BIDIRECTIONAL:
+                return "bidirectional";
+        case DMA_TO_DEVICE:
+                return "to device";
+        case DMA_FROM_DEVICE:
+                return "from device";
+        default:
+                return "none";
+        }
+}
+
 static void sata_dwc_tf_dump(struct ata_taskfile *tf)
 {
         dev_vdbg(host_pvt.dwc_dev, "taskfile cmd: 0x%02x protocol: %s flags:"
-                "0x%lx device: %x\n", tf->command, ata_get_cmd_descript\
-                (tf->protocol), tf->flags, tf->device);
+                "0x%lx device: %x\n", tf->command,
+                get_prot_descript(tf->protocol), tf->flags, tf->device);
         dev_vdbg(host_pvt.dwc_dev, "feature: 0x%02x nsect: 0x%x lbal: 0x%x "
                 "lbam: 0x%x lbah: 0x%x\n", tf->feature, tf->nsect, tf->lbal,
                  tf->lbam, tf->lbah);
@@ -970,7 +1006,7 @@ static irqreturn_t sata_dwc_isr(int irq, void *dev_instance)
                 }
 
                 dev_dbg(ap->dev, "%s non-NCQ cmd interrupt, protocol: %s\n",
-                        __func__, ata_get_cmd_descript(qc->tf.protocol));
+                        __func__, get_prot_descript(qc->tf.protocol));
 DRVSTILLBUSY:
                 if (ata_is_dma(qc->tf.protocol)) {
                         /*
@@ -1060,7 +1096,7 @@ DRVSTILLBUSY:
 
                 /* Process completed command */
                 dev_dbg(ap->dev, "%s NCQ command, protocol: %s\n", __func__,
-                        ata_get_cmd_descript(qc->tf.protocol));
+                        get_prot_descript(qc->tf.protocol));
                 if (ata_is_dma(qc->tf.protocol)) {
                         host_pvt.dma_interrupt_count++;
                         if (hsdevp->dma_pending[tag] == \
@@ -1145,8 +1181,8 @@ static void sata_dwc_dma_xfer_complete(struct ata_port *ap, u32 check_status)
         if (tag > 0) {
                 dev_info(ap->dev, "%s tag=%u cmd=0x%02x dma dir=%s proto=%s "
                          "dmacr=0x%08x\n", __func__, qc->tag, qc->tf.command,
-                         ata_get_cmd_descript(qc->dma_dir),
-                         ata_get_cmd_descript(qc->tf.protocol),
+                         get_dma_dir_descript(qc->dma_dir),
+                         get_prot_descript(qc->tf.protocol),
                          in_le32(&(hsdev->sata_dwc_regs->dmacr)));
         }
 #endif
@@ -1416,7 +1452,7 @@ static void sata_dwc_bmdma_start_by_tag(struct ata_queued_cmd *qc, u8 tag)
 
         dev_dbg(ap->dev, "%s qc=%p tag: %x cmd: 0x%02x dma_dir: %s "
                 "start_dma? %x\n", __func__, qc, tag, qc->tf.command,
-                ata_get_cmd_descript(qc->dma_dir), start_dma);
+                get_dma_dir_descript(qc->dma_dir), start_dma);
         sata_dwc_tf_dump(&(qc->tf));
 
         if (start_dma) {
@@ -1467,7 +1503,7 @@ static void sata_dwc_qc_prep_by_tag(struct ata_queued_cmd *qc, u8 tag)
         struct sata_dwc_device_port *hsdevp = HSDEVP_FROM_AP(ap);
 
         dev_dbg(ap->dev, "%s: port=%d dma dir=%s n_elem=%d\n",
-                __func__, ap->port_no, ata_get_cmd_descript(qc->dma_dir),
+                __func__, ap->port_no, get_dma_dir_descript(qc->dma_dir),
                  qc->n_elem);
 
         dma_chan = dma_dwc_xfer_setup(sg, qc->n_elem, hsdevp->llit[tag],
@@ -1494,7 +1530,7 @@ static unsigned int sata_dwc_qc_issue(struct ata_queued_cmd *qc)
                          "prot=%s ap active_tag=0x%08x ap sactive=0x%08x\n",
                          __func__, ap->print_id, qc->tf.command,
                          ata_get_cmd_descript(qc->tf.command),
-                         qc->tag, ata_get_cmd_descript(qc->tf.protocol),
+                         qc->tag, get_prot_descript(qc->tf.protocol),
                          ap->link.active_tag, ap->link.sactive);
 #endif