mmc: fix bug in mmc_startup_v4()

[people/ms/u-boot.git] / include / scsi.h

diff --git a/include/scsi.h b/include/scsi.h
index f94b2ef51444f5c06941efc460a0ee09d17009a6..7173912de4a85e85301b5cf1858ed6d20609e0b7 100644 (file)
--- a/include/scsi.h
+++ b/include/scsi.h
@@ -7,7 +7,7 @@
  #ifndef _SCSI_H
  #define _SCSI_H
 
-typedef struct SCSI_cmd_block{
+struct scsi_cmd {
        unsigned char           cmd[16];                                        /* command                                 */
        /* for request sense */
        unsigned char           sense_buf[64]
@@ -27,7 +27,7 @@ typedef struct SCSI_cmd_block{
        unsigned long           trans_bytes;                    /* tranfered bytes              */
 
        unsigned int            priv;
-}ccb;
+};
 
 /*-----------------------------------------------------------
 **
@@ -171,20 +171,66 @@ struct scsi_platdata {
        unsigned long max_id;
 };
 
-#if defined(CONFIG_DM_SCSI)
-void scsi_low_level_init(int busdevfunc, struct udevice *dev);
-#else
-void scsi_low_level_init(int busdevfunc);
-void scsi_init(void);
-#endif
+/* Operations for SCSI */
+struct scsi_ops {
+       /**
+        * exec() - execute a command
+        *
+        * @dev:        SCSI bus
+        * @cmd:        Command to execute
+        * @return 0 if OK, -ve on error
+        */
+       int (*exec)(struct udevice *dev, struct scsi_cmd *cmd);
+
+       /**
+        * bus_reset() - reset the bus
+        *
+        * @dev:        SCSI bus to reset
+        * @return 0 if OK, -ve on error
+        */
+       int (*bus_reset)(struct udevice *dev);
+};
 
-int scsi_exec(ccb *pccb);
-void scsi_bus_reset(void);
+#define scsi_get_ops(dev)        ((struct scsi_ops *)(dev)->driver->ops)
 
-/***************************************************************************
- * functions residing inside cmd_scsi.c
+extern struct scsi_ops scsi_ops;
+
+/**
+ * scsi_exec() - execute a command
+ *
+ * @dev:       SCSI bus
+ * @cmd:       Command to execute
+ * @return 0 if OK, -ve on error
+ */
+int scsi_exec(struct udevice *dev, struct scsi_cmd *cmd);
+
+/**
+ * scsi_bus_reset() - reset the bus
+ *
+ * @dev:       SCSI bus to reset
+ * @return 0 if OK, -ve on error
  */
-int scsi_scan(int mode);
+int scsi_bus_reset(struct udevice *dev);
+
+/**
+ * scsi_scan() - Scan all SCSI controllers for available devices
+ *
+ * @vebose: true to show information about each device found
+ */
+int scsi_scan(bool verbose);
+
+/**
+ * scsi_scan_dev() - scan a SCSI bus and create devices
+ *
+ * @dev:       SCSI bus
+ * @verbose:   true to show information about each device found
+ */
+int scsi_scan_dev(struct udevice *dev, bool verbose);
+
+#ifndef CONFIG_DM_SCSI
+void scsi_low_level_init(int busdevfunc);
+void scsi_init(void);
+#endif
 
 #define SCSI_IDENTIFY                                  0xC0  /* not used */