[deliverable/linux.git] / drivers / staging / gdm724x / gdm_mux.h

/*
 * 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_ */
Commit	Line	Data
61e12104 WK	1	/*
	2	* Copyright (c) 2012 GCT Semiconductor, Inc. All rights reserved.
	3	*
	4	* This software is licensed under the terms of the GNU General Public
	5	* License version 2, as published by the Free Software Foundation, and
	6	* may be copied, distributed, and modified under those terms.
	7	*
	8	* This program is distributed in the hope that it will be useful,
	9	* but WITHOUT ANY WARRANTY; without even the implied warranty of
	10	* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
	11	* GNU General Public License for more details.
	12	*/
	13
	14	#ifndef _GDM_MUX_H_
	15	#define _GDM_MUX_H_
	16
	17	#include <linux/types.h>
	18	#include <linux/usb.h>
	19	#include <linux/list.h>
	20
bf0373f1 WK	21	#include "gdm_tty.h"
bf0373f1 WK	22
61e12104 WK	23	#define PM_NORMAL 0
	24	#define PM_SUSPEND 1
	25
	26	#define USB_RT_ACM (USB_TYPE_CLASS \| USB_RECIP_INTERFACE)
	27
	28	#define START_FLAG 0xA512485A
	29	#define MUX_HEADER_SIZE 14
	30	#define MUX_TX_MAX_SIZE (1024*10)
	31	#define MUX_RX_MAX_SIZE (1024*30)
	32	#define AT_PKT_TYPE 0xF011
	33	#define DM_PKT_TYPE 0xF010
	34
	35	#define RETRY_TIMER 30 /* msec */
	36
	37	struct mux_pkt_header {
48131a6b EA	38	__le32 start_flag;
	39	__le32 seq_num;
	40	__le32 payload_size;
	41	__le16 packet_type;
61e12104 WK	42	unsigned char data[0];
	43	};
	44
	45	struct mux_tx {
	46	struct urb *urb;
	47	u8 *buf;
	48	int len;
	49	void (callback)(void cb_data);
	50	void *cb_data;
	51	};
	52
	53	struct mux_rx {
	54	struct list_head free_list;
	55	struct list_head rx_submit_list;
	56	struct list_head to_host_list;
	57	struct urb *urb;
	58	u8 *buf;
	59	void *mux_dev;
	60	u32 offset;
	61	u32 len;
bf0373f1 WK	62	int (callback)(void data,
	63	int len,
	64	int tty_index,
	65	struct tty_dev *tty_dev,
aee9440d	66	int complete);
61e12104 WK	67	};
	68
	69	struct rx_cxt {
	70	struct list_head to_host_list;
	71	struct list_head rx_submit_list;
	72	struct list_head rx_free_list;
	73	spinlock_t to_host_lock;
	74	spinlock_t submit_list_lock;
	75	spinlock_t free_list_lock;
	76	};
	77
	78	struct mux_dev {
	79	struct usb_device *usbdev;
	80	struct usb_interface *control_intf;
	81	struct usb_interface *data_intf;
	82	struct rx_cxt rx;
	83	struct delayed_work work_rx;
	84	struct usb_interface *intf;
	85	int usb_state;
bf0373f1 WK	86	int (rx_cb)(void data,
	87	int len,
	88	int tty_index,
	89	struct tty_dev *tty_dev,
aee9440d	90	int complete);
61e12104	91	spinlock_t write_lock;
bf0373f1	92	struct tty_dev *tty_dev;
61e12104 WK	93	};
	94
	95	#endif /* _GDM_MUX_H_ */