libata: kill type mismatch compile warning

[powerpc.git] / drivers / ata / pata_pcmcia.c

diff --git a/drivers/ata/pata_pcmcia.c b/drivers/ata/pata_pcmcia.c
index 103720f..171da0a 100644 (file)
--- a/drivers/ata/pata_pcmcia.c
+++ b/drivers/ata/pata_pcmcia.c
@@ -42,7 +42,7 @@
 
 
 #define DRV_NAME "pata_pcmcia"
-#define DRV_VERSION "0.3.0"
+#define DRV_VERSION "0.3.1"
 
 /*
  *     Private data structure to glue stuff together
@@ -54,6 +54,39 @@ struct ata_pcmcia_info {
        dev_node_t      node;
 };
 
+/**
+ *     pcmcia_set_mode -       PCMCIA specific mode setup
+ *     @ap: Port
+ *     @r_failed_dev: Return pointer for failed device
+ *
+ *     Perform the tuning and setup of the devices and timings, which
+ *     for PCMCIA is the same as any other controller. We wrap it however
+ *     as we need to spot hardware with incorrect or missing master/slave
+ *     decode, which alas is embarrassingly common in the PC world
+ */
+
+static int pcmcia_set_mode(struct ata_port *ap, struct ata_device **r_failed_dev)
+{
+       struct ata_device *master = &ap->device[0];
+       struct ata_device *slave = &ap->device[1];
+
+       if (!ata_dev_enabled(master) || !ata_dev_enabled(slave))
+               return ata_do_set_mode(ap, r_failed_dev);
+
+       if (memcmp(master->id + ATA_ID_FW_REV,  slave->id + ATA_ID_FW_REV,
+                          ATA_ID_FW_REV_LEN + ATA_ID_PROD_LEN) == 0)
+       {
+               /* Suspicious match, but could be two cards from
+                  the same vendor - check serial */
+               if (memcmp(master->id + ATA_ID_SERNO, slave->id + ATA_ID_SERNO,
+                          ATA_ID_SERNO_LEN) == 0 && master->id[ATA_ID_SERNO] >> 8) {
+                       ata_dev_printk(slave, KERN_WARNING, "is a ghost device, ignoring.\n");
+                       ata_dev_disable(slave);
+               }
+       }
+       return ata_do_set_mode(ap, r_failed_dev);
+}
+
 static struct scsi_host_template pcmcia_sht = {
        .module                 = THIS_MODULE,
        .name                   = DRV_NAME,
@@ -73,6 +106,7 @@ static struct scsi_host_template pcmcia_sht = {
 };
 
 static struct ata_port_operations pcmcia_port_ops = {
+       .set_mode       = pcmcia_set_mode,
        .port_disable   = ata_port_disable,
        .tf_load        = ata_tf_load,
        .tf_read        = ata_tf_read,
@@ -84,6 +118,7 @@ static struct ata_port_operations pcmcia_port_ops = {
        .thaw           = ata_bmdma_thaw,
        .error_handler  = ata_bmdma_error_handler,
        .post_internal_cmd = ata_bmdma_post_internal_cmd,
+       .cable_detect   = ata_cable_40wire,
 
        .qc_prep        = ata_qc_prep,
        .qc_issue       = ata_qc_issue_prot,