+/* 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 <asm/cache.h>
+#include <linux/dma-direction.h>
+
+struct udevice;
+
struct scsi_cmd {
unsigned char cmd[16]; /* command */
/* for request sense */
unsigned long trans_bytes; /* tranfered bytes */
unsigned int priv;
+ enum dma_data_direction dma_dir;
};
/*-----------------------------------------------------------
#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;
};
/* Operations for SCSI */
int (*bus_reset)(struct udevice *dev);
};
+#define scsi_get_ops(dev) ((struct scsi_ops *)(dev)->driver->ops)
+
+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_dev(struct udevice *dev, bool verbose);
+
#ifndef CONFIG_DM_SCSI
void scsi_low_level_init(int busdevfunc);
void scsi_init(void);
#endif
-int scsi_exec(struct scsi_cmd *pccb);
-void scsi_bus_reset(void);
-
-/***************************************************************************
- * functions residing inside cmd_scsi.c
- */
-int scsi_scan(int mode);
-
#define SCSI_IDENTIFY 0xC0 /* not used */
/* Hardware errors */