Won Kang | 61e1210 | 2013-07-25 03:36:17 +0900 | [diff] [blame] | 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 | |
Won Kang | bf0373f | 2013-08-16 13:13:44 +0900 | [diff] [blame] | 21 | #include "gdm_tty.h" |
| 22 | |
Won Kang | 61e1210 | 2013-07-25 03:36:17 +0900 | [diff] [blame] | 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 { |
Ebru Akagunduz | 48131a6 | 2014-10-07 11:41:08 +0300 | [diff] [blame] | 38 | __le32 start_flag; |
| 39 | __le32 seq_num; |
| 40 | __le32 payload_size; |
| 41 | __le16 packet_type; |
Won Kang | 61e1210 | 2013-07-25 03:36:17 +0900 | [diff] [blame] | 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; |
Won Kang | bf0373f | 2013-08-16 13:13:44 +0900 | [diff] [blame] | 62 | int (*callback)(void *data, |
| 63 | int len, |
| 64 | int tty_index, |
| 65 | struct tty_dev *tty_dev, |
Greg Kroah-Hartman | aee9440 | 2013-07-24 13:26:12 -0700 | [diff] [blame] | 66 | int complete); |
Won Kang | 61e1210 | 2013-07-25 03:36:17 +0900 | [diff] [blame] | 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; |
Won Kang | bf0373f | 2013-08-16 13:13:44 +0900 | [diff] [blame] | 86 | int (*rx_cb)(void *data, |
| 87 | int len, |
| 88 | int tty_index, |
| 89 | struct tty_dev *tty_dev, |
Greg Kroah-Hartman | aee9440 | 2013-07-24 13:26:12 -0700 | [diff] [blame] | 90 | int complete); |
Won Kang | 61e1210 | 2013-07-25 03:36:17 +0900 | [diff] [blame] | 91 | spinlock_t write_lock; |
Won Kang | bf0373f | 2013-08-16 13:13:44 +0900 | [diff] [blame] | 92 | struct tty_dev *tty_dev; |
Won Kang | 61e1210 | 2013-07-25 03:36:17 +0900 | [diff] [blame] | 93 | }; |
| 94 | |
| 95 | #endif /* _GDM_MUX_H_ */ |