1 files changed, 83 insertions, 0 deletions

diff --git a/utils/scsi/rbscsi.h b/utils/scsi/rbscsi.h
new file mode 100644
index 0000000000..2b56aabad2
--- /dev/null
+++ b/utils/scsi/rbscsi.h
@@ -0,0 +1,83 @@
+/***************************************************************************
+ *             __________               __   ___.
+ *   Open      \______   \ ____   ____ |  | _\_ |__   _______  ___
+ *   Source     |       _//  _ \_/ ___\|  |/ /| __ \ /  _ \  \/  /
+ *   Jukebox    |    |   (  <_> )  \___|    < | \_\ (  <_> > <  <
+ *   Firmware   |____|_  /\____/ \___  >__|_ \|___  /\____/__/\_ \
+ *                     \/            \/     \/    \/            \/
+ * $Id$
+ *
+ * Copyright (C) 2014 by Amaury Pouly
+ *
+ * This program is free software; you can redistribute it and/or
+ * modify it under the terms of the GNU General Public License
+ * as published by the Free Software Foundation; either version 2
+ * of the License, or (at your option) any later version.
+ *
+ * This software is distributed on an "AS IS" basis, WITHOUT WARRANTY OF ANY
+ * KIND, either express or implied.
+ *
+ ****************************************************************************/
+#ifndef __RB_SCSI_H__
+#define __RB_SCSI_H__
+
+#ifdef __cplusplus
+extern "C" {
+#endif
+
+struct rb_scsi_device_t;
+typedef struct rb_scsi_device_t *rb_scsi_device_t;
+
+typedef void (*rb_scsi_printf_t)(void *user, const char *fmt, ...);
+
+/* flags for rb_scsi_open */
+#define RB_SCSI_READ_ONLY   (1 << 0)
+#define RB_SCSI_DEBUG       (1 << 1)
+
+/* transfer direction */
+#define RB_SCSI_NONE        0
+#define RB_SCSI_READ        1
+#define RB_SCSI_WRITE       2
+
+/* most common status */
+#define RB_SCSI_GOOD                0
+#define RB_SCSI_CHECK_CONDITION     2
+#define RB_SCSI_COMMAND_TERMINATED  0x22
+
+/* return codes */
+#define RB_SCSI_OK          0 /* Everything worked */
+#define RB_SCSI_STATUS      1 /* Device returned an error in status */
+#define RB_SCSI_SENSE       2 /* Device returned sense data */
+#define RB_SCSI_OS_ERROR    3 /* Transfer failed, got OS error */
+#define RB_SCSI_ERROR       4 /* Transfer failed, got transfer/host error */
+
+/* structure for raw transfers */
+struct rb_scsi_raw_cmd_t
+{
+    int dir; /* direction: none, read or write */
+    int cdb_len; /* command buffer length */
+    void *cdb; /* command buffer */
+    int buf_len; /* data buffer length (will be overwritten with actual count) */
+    void *buf; /* buffer */
+    int sense_len; /* sense buffer length (will be overwritten with actual count) */
+    void *sense; /* sense buffer */
+    int tmo; /* timeout (in seconds) */
+    int status; /* status returned by device (STATUS) or errno (OS_ERROR) or other error (ERROR) */
+};
+
+/* open a device, returns a handle or NULL on error
+ * the caller can optionally provide an error printing function */
+rb_scsi_device_t rb_scsi_open(const char *path, unsigned flags, void *user,
+    rb_scsi_printf_t printf);
+/* performs a raw transfer, returns !=0 on error */
+int rb_scsi_raw_xfer(rb_scsi_device_t dev, struct rb_scsi_raw_cmd_t *raw);
+/* decode sense and print information if debug flag is set */
+void rb_scsi_decode_sense(rb_scsi_device_t dev, void *sense, int sense_len);
+/* close a device */
+void rb_scsi_close(rb_scsi_device_t dev);
+
+#ifdef __cplusplus
+}
+#endif
+
+#endif /* __RB_SCSI_H__ */