Adding upstream version 6.1.76.upstream/6.1.76upstream

Signed-off-by: Daniel Baumann <daniel.baumann@progress-linux.org>

1 files changed, 88 insertions, 0 deletions

diff --git a/drivers/usb/storage/transport.h b/drivers/usb/storage/transport.h
new file mode 100644
index 000000000..74ffd0d7e
--- /dev/null
+++ b/drivers/usb/storage/transport.h
@@ -0,0 +1,88 @@
+/* SPDX-License-Identifier: GPL-2.0+ */
+/*
+ * Driver for USB Mass Storage compliant devices
+ * Transport Functions Header File
+ *
+ * Current development and maintenance by:
+ *   (c) 1999, 2000 Matthew Dharm (mdharm-usb@one-eyed-alien.net)
+ *
+ * This driver is based on the 'USB Mass Storage Class' document. This
+ * describes in detail the protocol used to communicate with such
+ * devices.  Clearly, the designers had SCSI and ATAPI commands in
+ * mind when they created this document.  The commands are all very
+ * similar to commands in the SCSI-II and ATAPI specifications.
+ *
+ * It is important to note that in a number of cases this class
+ * exhibits class-specific exemptions from the USB specification.
+ * Notably the usage of NAK, STALL and ACK differs from the norm, in
+ * that they are used to communicate wait, failed and OK on commands.
+ *
+ * Also, for certain devices, the interrupt endpoint is used to convey
+ * status of a command.
+ */
+
+#ifndef _TRANSPORT_H_
+#define _TRANSPORT_H_
+
+#include <linux/blkdev.h>
+
+/*
+ * usb_stor_bulk_transfer_xxx() return codes, in order of severity
+ */
+
+#define USB_STOR_XFER_GOOD	0	/* good transfer                 */
+#define USB_STOR_XFER_SHORT	1	/* transferred less than expected */
+#define USB_STOR_XFER_STALLED	2	/* endpoint stalled              */
+#define USB_STOR_XFER_LONG	3	/* device tried to send too much */
+#define USB_STOR_XFER_ERROR	4	/* transfer died in the middle   */
+
+/*
+ * Transport return codes
+ */
+
+#define USB_STOR_TRANSPORT_GOOD	   0   /* Transport good, command good	   */
+#define USB_STOR_TRANSPORT_FAILED  1   /* Transport good, command failed   */
+#define USB_STOR_TRANSPORT_NO_SENSE 2  /* Command failed, no auto-sense    */
+#define USB_STOR_TRANSPORT_ERROR   3   /* Transport bad (i.e. device dead) */
+
+/*
+ * We used to have USB_STOR_XFER_ABORTED and USB_STOR_TRANSPORT_ABORTED
+ * return codes.  But now the transport and low-level transfer routines
+ * treat an abort as just another error (-ENOENT for a cancelled URB).
+ * It is up to the invoke_transport() function to test for aborts and
+ * distinguish them from genuine communication errors.
+ */
+
+/*
+ * CBI accept device specific command
+ */
+
+#define US_CBI_ADSC		0
+
+extern int usb_stor_CB_transport(struct scsi_cmnd *, struct us_data*);
+extern int usb_stor_CB_reset(struct us_data*);
+
+extern int usb_stor_Bulk_transport(struct scsi_cmnd *, struct us_data*);
+extern int usb_stor_Bulk_max_lun(struct us_data*);
+extern int usb_stor_Bulk_reset(struct us_data*);
+
+extern void usb_stor_invoke_transport(struct scsi_cmnd *, struct us_data*);
+extern void usb_stor_stop_transport(struct us_data*);
+
+extern int usb_stor_control_msg(struct us_data *us, unsigned int pipe,
+		u8 request, u8 requesttype, u16 value, u16 index,
+		void *data, u16 size, int timeout);
+extern int usb_stor_clear_halt(struct us_data *us, unsigned int pipe);
+
+extern int usb_stor_ctrl_transfer(struct us_data *us, unsigned int pipe,
+		u8 request, u8 requesttype, u16 value, u16 index,
+		void *data, u16 size);
+extern int usb_stor_bulk_transfer_buf(struct us_data *us, unsigned int pipe,
+		void *buf, unsigned int length, unsigned int *act_len);
+extern int usb_stor_bulk_transfer_sg(struct us_data *us, unsigned int pipe,
+		void *buf, unsigned int length, int use_sg, int *residual);
+extern int usb_stor_bulk_srb(struct us_data* us, unsigned int pipe,
+		struct scsi_cmnd* srb);
+
+extern int usb_stor_port_reset(struct us_data *us);
+#endif