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/*
* Copyright (c) 2012 GCT Semiconductor, Inc. All rights reserved.
*
* 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 _GDM_MUX_H_
#define _GDM_MUX_H_
#include <linux/types.h>
#include <linux/usb.h>
#include <linux/list.h>
#include "gdm_tty.h"
#define PM_NORMAL 0
#define PM_SUSPEND 1
#define USB_RT_ACM (USB_TYPE_CLASS | USB_RECIP_INTERFACE)
#define START_FLAG 0xA512485A
#define MUX_HEADER_SIZE 14
#define MUX_TX_MAX_SIZE (1024 * 10)
#define MUX_RX_MAX_SIZE (1024 * 30)
#define AT_PKT_TYPE 0xF011
#define DM_PKT_TYPE 0xF010
#define RETRY_TIMER 30 /* msec */
struct mux_pkt_header {
__le32 start_flag;
__le32 seq_num;
__le32 payload_size;
__le16 packet_type;
unsigned char data[0];
};
struct mux_tx {
struct urb *urb;
u8 *buf;
int len;
void (*callback)(void *cb_data);
void *cb_data;
};
struct mux_rx {
struct list_head free_list;
struct list_head rx_submit_list;
struct list_head to_host_list;
struct urb *urb;
u8 *buf;
void *mux_dev;
u32 offset;
u32 len;
int (*callback)(void *data,
int len,
int tty_index,
struct tty_dev *tty_dev,
int complete);
};
struct rx_cxt {
struct list_head to_host_list;
struct list_head rx_submit_list;
struct list_head rx_free_list;
spinlock_t to_host_lock;
spinlock_t submit_list_lock;
spinlock_t free_list_lock;
};
struct mux_dev {
struct usb_device *usbdev;
struct usb_interface *control_intf;
struct usb_interface *data_intf;
struct rx_cxt rx;
struct delayed_work work_rx;
struct usb_interface *intf;
int usb_state;
int (*rx_cb)(void *data,
int len,
int tty_index,
struct tty_dev *tty_dev,
int complete);
spinlock_t write_lock;
struct tty_dev *tty_dev;
};
#endif /* _GDM_MUX_H_ */
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