X-Git-Url: http://review.tizen.org/git/?a=blobdiff_plain;f=include%2Fscsi.h;h=0a475a8ca4c0b08a36f821d64d35540ebfe2bf27;hb=64cfeda8ae2e95751c5d2dfa4dc4a906478ae2f6;hp=182665dd0cd12f86c5ef8f94949b0248b4a89e3a;hpb=aae5ec34032610f2144542fd1b30b6a5cc559d79;p=platform%2Fkernel%2Fu-boot.git

diff --git a/include/scsi.h b/include/scsi.h
index 182665d..0a475a8 100644
--- a/include/scsi.h
+++ b/include/scsi.h
@@ -1,13 +1,17 @@
+/* SPDX-License-Identifier: GPL-2.0+ */
 /*
  * (C) Copyright 2001
  * Denis Peter, MPL AG Switzerland
- *
- * SPDX-License-Identifier:	GPL-2.0+
  */
  #ifndef _SCSI_H
  #define _SCSI_H
 
-typedef struct scsi_cmd{
+#include <asm/cache.h>
+#include <linux/dma-direction.h>
+
+struct udevice;
+
+struct scsi_cmd {
 	unsigned char		cmd[16];					/* command				   */
 	/* for request sense */
 	unsigned char		sense_buf[64]
@@ -27,7 +31,8 @@ typedef struct scsi_cmd{
 	unsigned long		trans_bytes;			/* tranfered bytes		*/
 
 	unsigned int		priv;
-}ccb;
+	enum dma_data_direction	dma_dir;
+};
 
 /*-----------------------------------------------------------
 **
@@ -159,32 +164,80 @@ typedef struct scsi_cmd{
 #define SCSI_WRITE_SAME	0x41		/* Write Same (O) */
 
 /**
- * struct scsi_platdata - stores information about SCSI controller
+ * struct scsi_plat - stores information about SCSI controller
  *
  * @base: Controller base address
  * @max_lun: Maximum number of logical units
  * @max_id: Maximum number of target ids
+ * @max_bytes_per_req: Maximum number of bytes per read/write request
  */
-struct scsi_platdata {
+struct scsi_plat {
 	unsigned long base;
 	unsigned long max_lun;
 	unsigned long max_id;
+	unsigned long max_bytes_per_req;
 };
 
-#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_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(int mode);
+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 */