1 // Copyright 2015-2018 Espressif Systems (Shanghai) PTE LTD
2 //
3 // Licensed under the Apache License, Version 2.0 (the "License");
4 // you may not use this file except in compliance with the License.
5 // You may obtain a copy of the License at
6 //
7 //     http://www.apache.org/licenses/LICENSE-2.0
8 //
9 // Unless required by applicable law or agreed to in writing, software
10 // distributed under the License is distributed on an "AS IS" BASIS,
11 // WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
12 // See the License for the specific language governing permissions and
13 // limitations under the License.
14 #pragma once
15 
16 #ifdef __cplusplus
17 extern "C" {
18 #endif
19 
20 #include "esp_types.h"
21 #include "esp_err.h"
22 #include "esp_modem_dte.h"
23 
24 typedef struct modem_dce modem_dce_t;
25 typedef struct modem_dte modem_dte_t;
26 typedef struct esp_modem_dce esp_modem_dce_t;
27 
28 /**
29  * @brief Result Code from DCE
30  *
31  */
32 #define MODEM_RESULT_CODE_SUCCESS "OK"              /*!< Acknowledges execution of a command */
33 #define MODEM_RESULT_CODE_CONNECT "CONNECT"         /*!< A connection has been established */
34 #define MODEM_RESULT_CODE_RING "RING"               /*!< Detect an incoming call signal from network */
35 #define MODEM_RESULT_CODE_NO_CARRIER "NO CARRIER"   /*!< Connection termincated or establish a connection failed */
36 #define MODEM_RESULT_CODE_ERROR "ERROR"             /*!< Command not recognized, command line maximum length exceeded, parameter value invalid */
37 #define MODEM_RESULT_CODE_NO_DIALTONE "NO DIALTONE" /*!< No dial tone detected */
38 #define MODEM_RESULT_CODE_BUSY "BUSY"               /*!< Engaged signal detected */
39 #define MODEM_RESULT_CODE_NO_ANSWER "NO ANSWER"     /*!< Wait for quiet answer */
40 
41 /**
42  * @brief Specific Length Constraint
43  *
44  */
45 #define MODEM_MAX_NAME_LENGTH (32)     /*!< Max Module Name Length */
46 #define MODEM_MAX_OPERATOR_LENGTH (32) /*!< Max Operator Name Length */
47 #define MODEM_IMEI_LENGTH (15)         /*!< IMEI Number Length */
48 #define MODEM_IMSI_LENGTH (15)         /*!< IMSI Number Length */
49 
50 /**
51  * @brief Specific Timeout Constraint, Unit: millisecond
52  *
53  */
54 #define MODEM_COMMAND_TIMEOUT_DEFAULT (500)      /*!< Default timeout value for most commands */
55 #define MODEM_COMMAND_TIMEOUT_OPERATOR (75000)   /*!< Timeout value for getting operator status */
56 #define MODEM_COMMAND_TIMEOUT_MODE_CHANGE (5000) /*!< Timeout value for changing working mode */
57 #define MODEM_COMMAND_TIMEOUT_HANG_UP (90000)    /*!< Timeout value for hang up */
58 #define MODEM_COMMAND_TIMEOUT_POWEROFF (1000)    /*!< Timeout value for power down */
59 
60 /**
61  * @brief Working state of DCE
62  *
63  */
64 typedef enum {
65     MODEM_STATE_PROCESSING, /*!< In processing */
66     MODEM_STATE_SUCCESS,    /*!< Process successfully */
67     MODEM_STATE_FAIL        /*!< Process failed */
68 } modem_state_t;
69 
70 /**
71  * @brief DCE(Data Communication Equipment)
72  *
73  */
74 struct modem_dce {
75     char imei[MODEM_IMEI_LENGTH + 1];                                                 /*!< IMEI number */
76     char imsi[MODEM_IMSI_LENGTH + 1];                                                 /*!< IMSI number */
77     char name[MODEM_MAX_NAME_LENGTH];                                                 /*!< Module name */
78     char oper[MODEM_MAX_OPERATOR_LENGTH];                                             /*!< Operator name */
79     uint8_t act;                                                                      /*!< Access technology */
80     const char *prompt;                                                               /*!< Modem prompt string */
81     modem_state_t state;                                                              /*!< Modem working state */
82     modem_mode_t mode;                                                                /*!< Working mode */
83     modem_dte_t *dte;                                                                 /*!< DTE which connect to DCE */
84     esp_err_t (*handle_line)(modem_dce_t *dce, const char *line);                     /*!< Handle line strategy */
85     esp_err_t (*sync)(modem_dce_t *dce);                                              /*!< Synchronization */
86     esp_err_t (*echo_mode)(modem_dce_t *dce, bool on);                                /*!< Echo command on or off */
87     esp_err_t (*store_profile)(modem_dce_t *dce);                                     /*!< Store user settings */
88     esp_err_t (*set_flow_ctrl)(modem_dce_t *dce, modem_flow_ctrl_t flow_ctrl);        /*!< Flow control on or off */
89     esp_err_t (*get_signal_quality)(modem_dce_t *dce, uint32_t *rssi, uint32_t *ber); /*!< Get signal quality */
90     esp_err_t (*get_battery_status)(modem_dce_t *dce, uint32_t *bcs,
91                                     uint32_t *bcl, uint32_t *voltage);  /*!< Get battery status */
92     esp_err_t (*get_operator_name)(modem_dce_t *dce);                   /*!< Get operator name */
93     esp_err_t (*define_pdp_context)(modem_dce_t *dce, uint32_t cid,
94                                     const char *type, const char *apn); /*!< Set PDP Contex */
95     esp_err_t (*set_working_mode)(modem_dce_t *dce, modem_mode_t mode); /*!< Set working mode */
96     esp_err_t (*hang_up)(modem_dce_t *dce);                             /*!< Hang up */
97     esp_err_t (*power_down)(modem_dce_t *dce);                          /*!< Normal power down */
98     esp_err_t (*deinit)(modem_dce_t *dce);                              /*!< Deinitialize */
99 };
100 
101 /**
102   * @brief ESP Modem with private resource
103   *
104   */
105  struct esp_modem_dce {
106      void *priv_resource; /*!< Private resource */
107      modem_dce_t parent;  /*!< DCE parent class */
108  };
109 
110 #ifdef __cplusplus
111 }
112 #endif
113