libata: implement drain buffers

[safe/jmp/linux-2.6] / drivers / ata / sata_uli.c

diff --git a/drivers/ata/sata_uli.c b/drivers/ata/sata_uli.c
index f74e383..e710e71 100644 (file)
--- a/drivers/ata/sata_uli.c
+++ b/drivers/ata/sata_uli.c
@@ -36,7 +36,7 @@
 #include <linux/libata.h>
 
 #define DRV_NAME       "sata_uli"
-#define DRV_VERSION    "1.1"
+#define DRV_VERSION    "1.3"
 
 enum {
        uli_5289                = 0,
@@ -56,9 +56,9 @@ struct uli_priv {
        unsigned int            scr_cfg_addr[uli_max_ports];
 };
 
-static int uli_init_one (struct pci_dev *pdev, const struct pci_device_id *ent);
-static u32 uli_scr_read (struct ata_port *ap, unsigned int sc_reg);
-static void uli_scr_write (struct ata_port *ap, unsigned int sc_reg, u32 val);
+static int uli_init_one(struct pci_dev *pdev, const struct pci_device_id *ent);
+static int uli_scr_read(struct ata_port *ap, unsigned int sc_reg, u32 *val);
+static int uli_scr_write(struct ata_port *ap, unsigned int sc_reg, u32 val);
 
 static const struct pci_device_id uli_pci_tbl[] = {
        { PCI_VDEVICE(AL, 0x5289), uli_5289 },
@@ -94,8 +94,6 @@ static struct scsi_host_template uli_sht = {
 };
 
 static const struct ata_port_operations uli_ops = {
-       .port_disable           = ata_port_disable,
-
        .tf_load                = ata_tf_load,
        .tf_read                = ata_tf_read,
        .check_status           = ata_check_status,
@@ -117,7 +115,6 @@ static const struct ata_port_operations uli_ops = {
 
        .irq_clear              = ata_bmdma_irq_clear,
        .irq_on                 = ata_irq_on,
-       .irq_ack                = ata_irq_ack,
 
        .scr_read               = uli_scr_read,
        .scr_write              = uli_scr_write,
@@ -125,11 +122,11 @@ static const struct ata_port_operations uli_ops = {
        .port_start             = ata_port_start,
 };
 
-static struct ata_port_info uli_port_info = {
+static const struct ata_port_info uli_port_info = {
        .flags          = ATA_FLAG_SATA | ATA_FLAG_NO_LEGACY |
                          ATA_FLAG_IGN_SIMPLEX,
        .pio_mask       = 0x1f,         /* pio0-4 */
-       .udma_mask      = 0x7f,         /* udma0-6 */
+       .udma_mask      = ATA_UDMA6,
        .port_ops       = &uli_ops,
 };
 
@@ -146,7 +143,7 @@ static unsigned int get_scr_cfg_addr(struct ata_port *ap, unsigned int sc_reg)
        return hpriv->scr_cfg_addr[ap->port_no] + (4 * sc_reg);
 }
 
-static u32 uli_scr_cfg_read (struct ata_port *ap, unsigned int sc_reg)
+static u32 uli_scr_cfg_read(struct ata_port *ap, unsigned int sc_reg)
 {
        struct pci_dev *pdev = to_pci_dev(ap->host->dev);
        unsigned int cfg_addr = get_scr_cfg_addr(ap, sc_reg);
@@ -156,7 +153,7 @@ static u32 uli_scr_cfg_read (struct ata_port *ap, unsigned int sc_reg)
        return val;
 }
 
-static void uli_scr_cfg_write (struct ata_port *ap, unsigned int scr, u32 val)
+static void uli_scr_cfg_write(struct ata_port *ap, unsigned int scr, u32 val)
 {
        struct pci_dev *pdev = to_pci_dev(ap->host->dev);
        unsigned int cfg_addr = get_scr_cfg_addr(ap, scr);
@@ -164,23 +161,25 @@ static void uli_scr_cfg_write (struct ata_port *ap, unsigned int scr, u32 val)
        pci_write_config_dword(pdev, cfg_addr, val);
 }
 
-static u32 uli_scr_read (struct ata_port *ap, unsigned int sc_reg)
+static int uli_scr_read(struct ata_port *ap, unsigned int sc_reg, u32 *val)
 {
        if (sc_reg > SCR_CONTROL)
-               return 0xffffffffU;
+               return -EINVAL;
 
-       return uli_scr_cfg_read(ap, sc_reg);
+       *val = uli_scr_cfg_read(ap, sc_reg);
+       return 0;
 }
 
-static void uli_scr_write (struct ata_port *ap, unsigned int sc_reg, u32 val)
+static int uli_scr_write(struct ata_port *ap, unsigned int sc_reg, u32 val)
 {
-       if (sc_reg > SCR_CONTROL)       //SCR_CONTROL=2, SCR_ERROR=1, SCR_STATUS=0
-               return;
+       if (sc_reg > SCR_CONTROL) //SCR_CONTROL=2, SCR_ERROR=1, SCR_STATUS=0
+               return -EINVAL;
 
        uli_scr_cfg_write(ap, sc_reg, val);
+       return 0;
 }
 
-static int uli_init_one (struct pci_dev *pdev, const struct pci_device_id *ent)
+static int uli_init_one(struct pci_dev *pdev, const struct pci_device_id *ent)
 {
        static int printed_version;
        const struct ata_port_info *ppi[] = { &uli_port_info, NULL };
@@ -201,19 +200,33 @@ static int uli_init_one (struct pci_dev *pdev, const struct pci_device_id *ent)
        n_ports = 2;
        if (board_idx == uli_5287)
                n_ports = 4;
-       rc = ata_pci_prepare_native_host(pdev, ppi, n_ports, &host);
-       if (rc)
-               return rc;
+
+       /* allocate the host */
+       host = ata_host_alloc_pinfo(&pdev->dev, ppi, n_ports);
+       if (!host)
+               return -ENOMEM;
 
        hpriv = devm_kzalloc(&pdev->dev, sizeof(*hpriv), GFP_KERNEL);
        if (!hpriv)
                return -ENOMEM;
        host->private_data = hpriv;
 
+       /* the first two ports are standard SFF */
+       rc = ata_pci_init_sff_host(host);
+       if (rc)
+               return rc;
+
+       rc = ata_pci_init_bmdma(host);
+       if (rc)
+               return rc;
+
        iomap = host->iomap;
 
        switch (board_idx) {
        case uli_5287:
+               /* If there are four, the last two live right after
+                * the standard SFF ports.
+                */
                hpriv->scr_cfg_addr[0] = ULI5287_BASE;
                hpriv->scr_cfg_addr[1] = ULI5287_BASE + ULI5287_OFFS;
 
@@ -226,6 +239,12 @@ static int uli_init_one (struct pci_dev *pdev, const struct pci_device_id *ent)
                hpriv->scr_cfg_addr[2] = ULI5287_BASE + ULI5287_OFFS*4;
                ata_std_ports(ioaddr);
 
+               ata_port_desc(host->ports[2],
+                       "cmd 0x%llx ctl 0x%llx bmdma 0x%llx",
+                       (unsigned long long)pci_resource_start(pdev, 0) + 8,
+                       ((unsigned long long)pci_resource_start(pdev, 1) | ATA_PCI_CTL_OFS) + 4,
+                       (unsigned long long)pci_resource_start(pdev, 4) + 16);
+
                ioaddr = &host->ports[3]->ioaddr;
                ioaddr->cmd_addr = iomap[2] + 8;
                ioaddr->altstatus_addr =
@@ -234,6 +253,13 @@ static int uli_init_one (struct pci_dev *pdev, const struct pci_device_id *ent)
                ioaddr->bmdma_addr = iomap[4] + 24;
                hpriv->scr_cfg_addr[3] = ULI5287_BASE + ULI5287_OFFS*5;
                ata_std_ports(ioaddr);
+
+               ata_port_desc(host->ports[2],
+                       "cmd 0x%llx ctl 0x%llx bmdma 0x%llx",
+                       (unsigned long long)pci_resource_start(pdev, 2) + 9,
+                       ((unsigned long long)pci_resource_start(pdev, 3) | ATA_PCI_CTL_OFS) + 4,
+                       (unsigned long long)pci_resource_start(pdev, 4) + 24);
+
                break;
 
        case uli_5289: