1 | /* SPDX-License-Identifier: GPL-2.0 */ |
2 | /* Copyright (c) 2012 GCT Semiconductor, Inc. All rights reserved. */ |
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 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 /* msec */ |
26 | |
27 | struct { |
28 | __le32 ; |
29 | __le32 ; |
30 | __le32 ; |
31 | __le16 ; |
32 | unsigned char []; |
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 /* _GDM_MUX_H_ */ |
86 | |