Orange Pi5 kernel

^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  1) /* SPDX-License-Identifier: GPL-2.0+ */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  2) /*
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  3)  * Driver for USB Mass Storage compliant devices
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  4)  * Protocol Functions Header File
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  5)  *
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  6)  * Current development and maintenance by:
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  7)  *   (c) 1999, 2000 Matthew Dharm (mdharm-usb@one-eyed-alien.net)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  8)  *
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  9)  * This driver is based on the 'USB Mass Storage Class' document. This
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 10)  * describes in detail the protocol used to communicate with such
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 11)  * devices.  Clearly, the designers had SCSI and ATAPI commands in
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 12)  * mind when they created this document.  The commands are all very
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 13)  * similar to commands in the SCSI-II and ATAPI specifications.
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 14)  *
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 15)  * It is important to note that in a number of cases this class
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 16)  * exhibits class-specific exemptions from the USB specification.
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 17)  * Notably the usage of NAK, STALL and ACK differs from the norm, in
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 18)  * that they are used to communicate wait, failed and OK on commands.
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 19)  *
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 20)  * Also, for certain devices, the interrupt endpoint is used to convey
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 21)  * status of a command.
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 22)  */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 23) 
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 24) #ifndef _PROTOCOL_H_
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 25) #define _PROTOCOL_H_
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 26) 
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 27) /* Protocol handling routines */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 28) extern void usb_stor_pad12_command(struct scsi_cmnd*, struct us_data*);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 29) extern void usb_stor_ufi_command(struct scsi_cmnd*, struct us_data*);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 30) extern void usb_stor_transparent_scsi_command(struct scsi_cmnd*,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 31) 		struct us_data*);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 32) 
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 33) /* struct scsi_cmnd transfer buffer access utilities */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 34) enum xfer_buf_dir	{TO_XFER_BUF, FROM_XFER_BUF};
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 35) 
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 36) extern unsigned int usb_stor_access_xfer_buf(unsigned char *buffer,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 37) 	unsigned int buflen, struct scsi_cmnd *srb, struct scatterlist **,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 38) 	unsigned int *offset, enum xfer_buf_dir dir);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 39) 
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 40) extern void usb_stor_set_xfer_buf(unsigned char *buffer,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 41) 	unsigned int buflen, struct scsi_cmnd *srb);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 42) #endif