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