1
2
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
11 #include "gdm_tty.h"
12
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
20 #define MUX_TX_MAX_SIZE (1024 * 10)
21 #define MUX_RX_MAX_SIZE (1024 * 30)
22 #define AT_PKT_TYPE 0xF011
23 #define DM_PKT_TYPE 0xF010
24
25 #define RETRY_TIMER 30
26
27 struct mux_pkt_header {
28 __le32 start_flag;
29 __le32 seq_num;
30 __le32 payload_size;
31 __le16 packet_type;
32 unsigned char data[0];
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;
52 int (*callback)(void *data,
53 int len,
54 int tty_index,
55 struct tty_dev *tty_dev,
56 int complete);
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;
76 int (*rx_cb)(void *data,
77 int len,
78 int tty_index,
79 struct tty_dev *tty_dev,
80 int complete);
81 spinlock_t write_lock;
82 struct tty_dev *tty_dev;
83 };
84
85 #endif