libata-link: introduce ata_link

[linux-2.6] / drivers / ata / sata_sil.c

diff --git a/drivers/ata/sata_sil.c b/drivers/ata/sata_sil.c
index e8483aadd11b7bcb059450c79c78eef1988cc180..2ddbe4cc71e41576c3597a67993fa85ce08bef51 100644 (file)
--- a/drivers/ata/sata_sil.c
+++ b/drivers/ata/sata_sil.c
@@ -46,7 +46,7 @@
 #include <linux/libata.h>
 
 #define DRV_NAME       "sata_sil"
-#define DRV_VERSION    "2.2"
+#define DRV_VERSION    "2.3"
 
 enum {
        SIL_MMIO_BAR            = 5,
@@ -115,8 +115,8 @@ static int sil_init_one (struct pci_dev *pdev, const struct pci_device_id *ent);
 static int sil_pci_device_resume(struct pci_dev *pdev);
 #endif
 static void sil_dev_config(struct ata_device *dev);
-static u32 sil_scr_read (struct ata_port *ap, unsigned int sc_reg);
-static void sil_scr_write (struct ata_port *ap, unsigned int sc_reg, u32 val);
+static int sil_scr_read(struct ata_port *ap, unsigned int sc_reg, u32 *val);
+static int sil_scr_write(struct ata_port *ap, unsigned int sc_reg, u32 val);
 static int sil_set_mode (struct ata_port *ap, struct ata_device **r_failed);
 static void sil_freeze(struct ata_port *ap);
 static void sil_thaw(struct ata_port *ap);
@@ -218,7 +218,7 @@ static const struct ata_port_info sil_port_info[] = {
                .flags          = SIL_DFL_PORT_FLAGS | SIL_FLAG_MOD15WRITE,
                .pio_mask       = 0x1f,                 /* pio0-4 */
                .mwdma_mask     = 0x07,                 /* mwdma0-2 */
-               .udma_mask      = 0x3f,                 /* udma0-5 */
+               .udma_mask      = ATA_UDMA5,
                .port_ops       = &sil_ops,
        },
        /* sil_3112_no_sata_irq */
@@ -227,7 +227,7 @@ static const struct ata_port_info sil_port_info[] = {
                                  SIL_FLAG_NO_SATA_IRQ,
                .pio_mask       = 0x1f,                 /* pio0-4 */
                .mwdma_mask     = 0x07,                 /* mwdma0-2 */
-               .udma_mask      = 0x3f,                 /* udma0-5 */
+               .udma_mask      = ATA_UDMA5,
                .port_ops       = &sil_ops,
        },
        /* sil_3512 */
@@ -235,7 +235,7 @@ static const struct ata_port_info sil_port_info[] = {
                .flags          = SIL_DFL_PORT_FLAGS | SIL_FLAG_RERR_ON_DMA_ACT,
                .pio_mask       = 0x1f,                 /* pio0-4 */
                .mwdma_mask     = 0x07,                 /* mwdma0-2 */
-               .udma_mask      = 0x3f,                 /* udma0-5 */
+               .udma_mask      = ATA_UDMA5,
                .port_ops       = &sil_ops,
        },
        /* sil_3114 */
@@ -243,7 +243,7 @@ static const struct ata_port_info sil_port_info[] = {
                .flags          = SIL_DFL_PORT_FLAGS | SIL_FLAG_RERR_ON_DMA_ACT,
                .pio_mask       = 0x1f,                 /* pio0-4 */
                .mwdma_mask     = 0x07,                 /* mwdma0-2 */
-               .udma_mask      = 0x3f,                 /* udma0-5 */
+               .udma_mask      = ATA_UDMA5,
                .port_ops       = &sil_ops,
        },
 };
@@ -262,8 +262,9 @@ static const struct {
        unsigned long sfis_cfg; /* SATA FIS reception config register */
 } sil_port[] = {
        /* port 0 ... */
-       { 0x80, 0x8A, 0x00, 0x10, 0x40, 0x100, 0x148, 0xb4, 0x14c },
-       { 0xC0, 0xCA, 0x08, 0x18, 0x44, 0x180, 0x1c8, 0xf4, 0x1cc },
+       /*   tf    ctl  bmdma  bmdma2  fifo    scr   sien   mode   sfis */
+       {  0x80,  0x8A,   0x0,  0x10,  0x40, 0x100, 0x148,  0xb4, 0x14c },
+       {  0xC0,  0xCA,   0x8,  0x18,  0x44, 0x180, 0x1c8,  0xf4, 0x1cc },
        { 0x280, 0x28A, 0x200, 0x210, 0x240, 0x300, 0x348, 0x2b4, 0x34c },
        { 0x2C0, 0x2CA, 0x208, 0x218, 0x244, 0x380, 0x3c8, 0x2f4, 0x3cc },
        /* ... port 3 */
@@ -305,13 +306,13 @@ static int sil_set_mode (struct ata_port *ap, struct ata_device **r_failed)
        u32 tmp, dev_mode[2];
        unsigned int i;
        int rc;
-       
+
        rc = ata_do_set_mode(ap, r_failed);
        if (rc)
                return rc;
 
        for (i = 0; i < 2; i++) {
-               dev = &ap->device[i];
+               dev = &ap->link.device[i];
                if (!ata_dev_enabled(dev))
                        dev_mode[i] = 0;        /* PIO0/1/2 */
                else if (dev->flags & ATA_DFLAG_PIO)
@@ -349,25 +350,32 @@ static inline void __iomem *sil_scr_addr(struct ata_port *ap, unsigned int sc_re
        return NULL;
 }
 
-static u32 sil_scr_read (struct ata_port *ap, unsigned int sc_reg)
+static int sil_scr_read(struct ata_port *ap, unsigned int sc_reg, u32 *val)
 {
        void __iomem *mmio = sil_scr_addr(ap, sc_reg);
-       if (mmio)
-               return readl(mmio);
-       return 0xffffffffU;
+
+       if (mmio) {
+               *val = readl(mmio);
+               return 0;
+       }
+       return -EINVAL;
 }
 
-static void sil_scr_write (struct ata_port *ap, unsigned int sc_reg, u32 val)
+static int sil_scr_write(struct ata_port *ap, unsigned int sc_reg, u32 val)
 {
        void __iomem *mmio = sil_scr_addr(ap, sc_reg);
-       if (mmio)
+
+       if (mmio) {
                writel(val, mmio);
+               return 0;
+       }
+       return -EINVAL;
 }
 
 static void sil_host_intr(struct ata_port *ap, u32 bmdma2)
 {
-       struct ata_eh_info *ehi = &ap->eh_info;
-       struct ata_queued_cmd *qc = ata_qc_from_tag(ap, ap->active_tag);
+       struct ata_eh_info *ehi = &ap->link.eh_info;
+       struct ata_queued_cmd *qc = ata_qc_from_tag(ap, ap->link.active_tag);
        u8 status;
 
        if (unlikely(bmdma2 & SIL_DMA_SATA_IRQ)) {
@@ -377,7 +385,7 @@ static void sil_host_intr(struct ata_port *ap, u32 bmdma2)
                 * controllers continue to assert IRQ as long as
                 * SError bits are pending.  Clear SError immediately.
                 */
-               serror = sil_scr_read(ap, SCR_ERROR);
+               sil_scr_read(ap, SCR_ERROR, &serror);
                sil_scr_write(ap, SCR_ERROR, serror);
 
                /* Trigger hotplug and accumulate SError only if the
@@ -386,8 +394,8 @@ static void sil_host_intr(struct ata_port *ap, u32 bmdma2)
                 * repeat probing needlessly.
                 */
                if (!(ap->pflags & ATA_PFLAG_FROZEN)) {
-                       ata_ehi_hotplugged(&ap->eh_info);
-                       ap->eh_info.serror |= serror;
+                       ata_ehi_hotplugged(&ap->link.eh_info);
+                       ap->link.eh_info.serror |= serror;
                }
 
                goto freeze;
@@ -554,8 +562,8 @@ static void sil_thaw(struct ata_port *ap)
  */
 static void sil_dev_config(struct ata_device *dev)
 {
-       struct ata_port *ap = dev->ap;
-       int print_info = ap->eh_context.i.flags & ATA_EHI_PRINTINFO;
+       struct ata_port *ap = dev->link->ap;
+       int print_info = ap->link.eh_context.i.flags & ATA_EHI_PRINTINFO;
        unsigned int n, quirks = 0;
        unsigned char model_num[ATA_ID_PROD_LEN + 1];