72 lines
2.5 KiB
C
72 lines
2.5 KiB
C
/* Driver for USB Mass Storage compliant devices
|
|
* Debugging Functions Header File
|
|
*
|
|
* Current development and maintenance by:
|
|
* (c) 1999-2002 Matthew Dharm (mdharm-usb@one-eyed-alien.net)
|
|
*
|
|
* Initial work by:
|
|
* (c) 1999 Michael Gee (michael@linuxspecific.com)
|
|
*
|
|
* 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.
|
|
*
|
|
* Please see http://www.one-eyed-alien.net/~mdharm/linux-usb for more
|
|
* information about this driver.
|
|
*
|
|
* 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, or (at your option) any
|
|
* later version.
|
|
*
|
|
* This program is distributed in the hope that it will be useful, but
|
|
* WITHOUT ANY WARRANTY; without even the implied warranty of
|
|
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
|
|
* General Public License for more details.
|
|
*
|
|
* You should have received a copy of the GNU General Public License along
|
|
* with this program; if not, write to the Free Software Foundation, Inc.,
|
|
* 675 Mass Ave, Cambridge, MA 02139, USA.
|
|
*/
|
|
|
|
#ifndef _DEBUG_H_
|
|
#define _DEBUG_H_
|
|
|
|
#include <linux/kernel.h>
|
|
|
|
#define USB_STORAGE "usb-storage: "
|
|
|
|
#ifdef CONFIG_USB_STORAGE_DEBUG
|
|
void usb_stor_show_command(const struct us_data *us, struct scsi_cmnd *srb);
|
|
void usb_stor_show_sense(const struct us_data *us, unsigned char key,
|
|
unsigned char asc, unsigned char ascq);
|
|
__printf(2, 3) void usb_stor_dbg(const struct us_data *us,
|
|
const char *fmt, ...);
|
|
|
|
#define US_DEBUGPX(fmt, ...) printk(fmt, ##__VA_ARGS__)
|
|
#define US_DEBUG(x) x
|
|
#else
|
|
__printf(2, 3)
|
|
static inline void _usb_stor_dbg(const struct us_data *us,
|
|
const char *fmt, ...)
|
|
{
|
|
}
|
|
#define usb_stor_dbg(us, fmt, ...) \
|
|
do { if (0) _usb_stor_dbg(us, fmt, ##__VA_ARGS__); } while (0)
|
|
#define US_DEBUGPX(fmt, ...) \
|
|
do { if (0) printk(fmt, ##__VA_ARGS__); } while (0)
|
|
#define US_DEBUG(x)
|
|
#endif
|
|
|
|
#endif
|