+/* 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{
+struct scsi_cmd {
unsigned char cmd[16]; /* command */
/* for request sense */
unsigned char sense_buf[64]
unsigned long trans_bytes; /* tranfered bytes */
unsigned int priv;
-}ccb;
+};
/*-----------------------------------------------------------
**
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 */