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Diffstat (limited to 'drivers/usb/gadget/multi_config.h')
-rw-r--r-- | drivers/usb/gadget/multi_config.h | 135 |
1 files changed, 135 insertions, 0 deletions
diff --git a/drivers/usb/gadget/multi_config.h b/drivers/usb/gadget/multi_config.h new file mode 100644 index 0000000..792bbae --- /dev/null +++ b/drivers/usb/gadget/multi_config.h @@ -0,0 +1,135 @@ +/* + * 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 */ |