usb: gadget: Add snapshot of u_bam and u_bam_data

/* Copyright (c) 2013-2014, The Linux Foundation. All rights reserved.

 *

 * This program is free software; you can redistribute it and/or modify

 * it under the terms of the GNU General Public License version 2 and

 * only version 2 as published by the Free Software Foundation.

 *

 * 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 __U_BAM_DATA_H

#define __U_BAM_DATA_H

#include "usb_gadget_xport.h"

enum function_type {

	USB_FUNC_ECM,

	USB_FUNC_MBIM,

	USB_FUNC_RNDIS,

	USB_NUM_FUNCS,

};

#define PORTS_PER_FUNC 1

#define BAM2BAM_DATA_N_PORTS (USB_NUM_FUNCS * PORTS_PER_FUNC)

struct data_port {

	struct usb_composite_dev	*cdev;

	struct usb_function		*func;

	struct usb_ep			*in;

	int				rx_buffer_size;

	struct usb_ep			*out;

	int                             ipa_consumer_ep;

	int                             ipa_producer_ep;

};

int bam2bam_data_port_select(int portno);

void bam_data_disconnect(struct data_port *gr, u8 port_num);

int bam_data_connect(struct data_port *gr, u8 port_num,

	enum transport_type trans, u8 src_connection_idx,

	u8 dst_connection_idx, enum function_type func);

int bam_data_setup(enum function_type func, unsigned int no_bam2bam_port);

void bam_data_flush_workqueue(void);

void bam_data_suspend(u8 port_num);

void bam_data_resume(u8 port_num);

void u_bam_data_set_dl_max_xfer_size(u32 dl_max_transfer_size);

void u_bam_data_set_ul_max_pkt_num(u8 ul_max_packets_number);

void u_bam_data_set_ul_max_xfer_size(u32 ul_max_xfer_size);

void u_bam_data_start_rndis_ipa(void);

void u_bam_data_stop_rndis_ipa(void);

void bam_data_start_rx_tx(u8 port_num);

int u_bam_data_func_to_port(enum function_type func, u8 func_port);

#endif /* __U_BAM_DATA_H */