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/*
* File Name : multi_config.h
*
* Virtual multi configuration utilities for composite USB gadgets.
* This utilitie can support variable interface for variable Host PC.
*
* Copyright (C) 2011 Samsung Electronics
* Author: SoonYong, Cho <soonyong.cho@samsung.com>
*
* This software is licensed under the terms of the GNU General Public
* License version 2, as published by the Free Software Foundation, and
* may be copied, distributed, and modified under those terms.
*
* 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.
*
*/
#ifndef __MULTI_CONFIG_H
#define __MULTI_CONFIG_H
#include <linux/kernel.h>
#include <linux/device.h>
#include <linux/usb/composite.h>
/*
* Debugging macro and defines
*/
/*#define USB_DEBUG
*#define USB_MORE_DEBUG
*/
#define USB_DEBUG_ESS
#ifdef USB_DEBUG
# ifdef USB_MORE_DEBUG
# define USB_DBG(fmt, args...) \
printk(KERN_INFO "usb: %s "fmt, __func__, ##args)
# else
# define USB_DBG(fmt, args...) \
printk(KERN_DEBUG "usb: %s "fmt, __func__, ##args)
# endif
#else /* DO NOT PRINT LOG */
# define USB_DBG(fmt, args...) do { } while (0)
#endif /* USB_DEBUG */
#ifdef USB_DEBUG_ESS
# ifdef USB_MORE_DEBUG
# define USB_DBG_ESS(fmt, args...) \
printk(KERN_INFO "usb: %s "fmt, __func__, ##args)
# else
# define USB_DBG_ESS(fmt, args...) \
printk(KERN_DEBUG "usb: %s "fmt, __func__, ##args)
# endif
#else /* DO NOT PRINT LOG */
# define USB_DBG_ESS(fmt, args...) do { } while (0)
#endif /* USB_DEBUG_ESS */
#define MAIN_FUNCTION "mtp"
#define MULTI_FUNCTION_1 "mtp"
#define MULTI_FUNCTION_2 "acm0"
#define MULTI_EXCEPTION_FUNCTION "adb"
#define MAC_REQUEST 0
#define OTHER_REQUEST 1
/* Description : Set configuration number
* Parameter : unsigned num (host request)
* Return value : always return 0 (It's virtual multiconfiguration)
*/
unsigned set_config_number(unsigned num);
/* Description : Get configuration number
* Return value : virtual multiconfiguration number (zero base)
*/
int get_config_number(void);
/* Description : Check configuration number
* Parameter : unsigned num (host request)
* Return value : 1 (true : virtual multi configuraiton)
0 (false : normal configuration)
*/
int check_config(unsigned num);
/* Description : Search number of configuration including virtual configuration
* Parameter : usb_configuration *c (referenced configuration)
unsigned count (real number of configuration)
* Return value : virtual or real number of configuration
*/
unsigned count_multi_config(struct usb_configuration *c, unsigned count);
/* Description : Is multi configuration available ?
* Return value : 1 (true), 0 (false)
*/
int is_multi_configuration(void);
/* Description : Check function to skip for multi configuration
* Parameter : char* name (function name)
* Return value : 0 (not available), 1 (available)
*/
int is_available_function(const char *name);
/* Description : Change configuration using virtual multi configuration.
* Parameter : struct usb_funciton f (to be changed function interface)
void *next (next means usb req->buf)
int len (length for to fill buffer)
struct usb_configuration *config
(To reference interface array of current config)
enum usb_device_speed speed (usb speed)
* Return value : "ret < 0" means fillbuffer function is failed.
*/
int change_conf(struct usb_function *f,
void *next, int len,
struct usb_configuration *config,
enum usb_device_speed speed);
/* Description : Set interface count
* Parameter : struct usb_configuration *config
(To reference interface array of current config)
struct usb_config_descriptor *c
(number of interfaces)
* Return value : void
*/
void set_interface_count(struct usb_configuration *config,
struct usb_config_descriptor *c);
/* Description : Set string mode
* This mode will be used for deciding other interface.
* Parameter : u16 w_length
* - 2 means MAC request.
* - Windows and Linux PC always request 255 size.
*/
void set_string_mode(u16 w_length);
#endif /* __MULTI_CONFIG_H */
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