net: Improve documentation for string_to_ip()

[oweals/u-boot.git] / include / scsi.h

diff --git a/include/scsi.h b/include/scsi.h
index 20f6932602bcf9f7cf96fe7d5f9df4a83fdf1f71..61da958bf684faea91d3cfd042348304bef03f0f 100644 (file)
--- a/include/scsi.h
+++ b/include/scsi.h
@@ -1,12 +1,13 @@
+/* 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
 
+#include <linux/dma-direction.h>
+
 struct scsi_cmd {
        unsigned char           cmd[16];                                        /* command                                 */
        /* for request sense */
@@ -27,6 +28,7 @@ struct scsi_cmd {
        unsigned long           trans_bytes;                    /* tranfered bytes              */
 
        unsigned int            priv;
+       enum dma_data_direction dma_dir;
 };
 
 /*-----------------------------------------------------------
@@ -164,11 +166,13 @@ struct scsi_cmd {
  * @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 {
        unsigned long base;
        unsigned long max_lun;
        unsigned long max_id;
+       unsigned long max_bytes_per_req;
 };
 
 /* Operations for SCSI */
@@ -191,12 +195,25 @@ struct scsi_ops {
        int (*bus_reset)(struct udevice *dev);
 };
 
-#ifndef CONFIG_DM_SCSI
-void scsi_low_level_init(int busdevfunc);
-void scsi_init(void);
-#endif
+#define scsi_get_ops(dev)        ((struct scsi_ops *)(dev)->driver->ops)
 
-int scsi_exec(struct udevice *dev, struct scsi_cmd *pccb);
+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);
 
 /**
@@ -206,6 +223,19 @@ int scsi_bus_reset(struct udevice *dev);
  */
 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 */
 
 /* Hardware errors  */