kernel/drivers/staging/gdm724x/gdm_tty.h

   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_TTY_H_
  15 #define _GDM_TTY_H_
  16
  17 #include <linux/types.h>
  18 #include <linux/tty.h>
  19
  20
  21 #define TTY_MAX_COUNT           2
  22
  23 #define MAX_ISSUE_NUM 3
  24
  25 enum TO_HOST_RESULT {
  26         TO_HOST_BUFFER_REQUEST_FAIL = 1,
  27         TO_HOST_PORT_CLOSE = 2,
  28         TO_HOST_INVALID_PACKET = 3,
  29 };
  30
  31 enum RECV_PACKET_PROCESS {
  32         RECV_PACKET_PROCESS_COMPLETE = 0,
  33         RECV_PACKET_PROCESS_CONTINUE = 1,
  34 };
  35
  36 struct gdm {
  37         struct tty_dev *tty_dev;
  38         struct tty_port port;
  39         unsigned int index;
  40         unsigned int minor;
  41 };
  42
  43 struct tty_dev {
  44         void *priv_dev;
  45         int (*send_func)(void *priv_dev,
  46                          void *data,
  47                          int len,
  48                          int tty_index,
  49                          void (*cb)(void *cb_data),
  50                          void *cb_data);
  51         int (*recv_func)(void *priv_dev,
  52                          int (*cb)(void *data,
  53                                    int len,
  54                                    int tty_index,
  55                                    struct tty_dev *tty_dev,
  56                                    int complete));
  57         int (*send_control)(void *priv_dev,
  58                             int request,
  59                             int value,
  60                             void *data,
  61                             int len);
  62         struct gdm *gdm[2];
  63 };
  64
  65 int register_lte_tty_driver(void);
  66 void unregister_lte_tty_driver(void);
  67 int register_lte_tty_device(struct tty_dev *tty_dev, struct device *dev);
  68 void unregister_lte_tty_device(struct tty_dev *tty_dev);
  69
  70 #endif /* _GDM_USB_H_ */
  71