[linux-block.git] / drivers / staging / gdm724x / gdm_mux.h

/* SPDX-License-Identifier: GPL-2.0 */
/* Copyright (c) 2012 GCT Semiconductor, Inc. All rights reserved. */

#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[];
};

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
1146ee4a	1	/* SPDX-License-Identifier: GPL-2.0 */
ad9bd58c	2	/* Copyright (c) 2012 GCT Semiconductor, Inc. All rights reserved. */
61e12104 WK	3
	4	#ifndef _GDM_MUX_H_
	5	#define _GDM_MUX_H_
	6
	7	#include <linux/types.h>
	8	#include <linux/usb.h>
	9	#include <linux/list.h>
	10
bf0373f1 WK	11	#include "gdm_tty.h"
bf0373f1 WK	12
61e12104 WK	13	#define PM_NORMAL 0
	14	#define PM_SUSPEND 1
	15
	16	#define USB_RT_ACM (USB_TYPE_CLASS \| USB_RECIP_INTERFACE)
	17
	18	#define START_FLAG 0xA512485A
	19	#define MUX_HEADER_SIZE 14
601e59fa	20	#define MUX_TX_MAX_SIZE (1024 * 10)
601e59fa	21	#define MUX_RX_MAX_SIZE (1024 * 30)
61e12104 WK	22	#define AT_PKT_TYPE 0xF011
	23	#define DM_PKT_TYPE 0xF010
	24
	25	#define RETRY_TIMER 30 /* msec */
	26
	27	struct mux_pkt_header {
48131a6b EA	28	__le32 start_flag;
	29	__le32 seq_num;
	30	__le32 payload_size;
	31	__le16 packet_type;
5979afa2	32	unsigned char data[];
61e12104 WK	33	};
	34
	35	struct mux_tx {
	36	struct urb *urb;
	37	u8 *buf;
	38	int len;
	39	void (callback)(void cb_data);
	40	void *cb_data;
	41	};
	42
	43	struct mux_rx {
	44	struct list_head free_list;
	45	struct list_head rx_submit_list;
	46	struct list_head to_host_list;
	47	struct urb *urb;
	48	u8 *buf;
	49	void *mux_dev;
	50	u32 offset;
	51	u32 len;
bf0373f1 WK	52	int (callback)(void data,
	53	int len,
	54	int tty_index,
	55	struct tty_dev *tty_dev,
aee9440d	56	int complete);
61e12104 WK	57	};
	58
	59	struct rx_cxt {
	60	struct list_head to_host_list;
	61	struct list_head rx_submit_list;
	62	struct list_head rx_free_list;
	63	spinlock_t to_host_lock;
	64	spinlock_t submit_list_lock;
	65	spinlock_t free_list_lock;
	66	};
	67
	68	struct mux_dev {
	69	struct usb_device *usbdev;
	70	struct usb_interface *control_intf;
	71	struct usb_interface *data_intf;
	72	struct rx_cxt rx;
	73	struct delayed_work work_rx;
	74	struct usb_interface *intf;
	75	int usb_state;
bf0373f1 WK	76	int (rx_cb)(void data,
	77	int len,
	78	int tty_index,
	79	struct tty_dev *tty_dev,
aee9440d	80	int complete);
61e12104	81	spinlock_t write_lock;
bf0373f1	82	struct tty_dev *tty_dev;
61e12104 WK	83	};
	84
	85	#endif /* _GDM_MUX_H_ */