| /****************************************************************************** |
| * |
| * Copyright (c) 2014 The Android Open Source Project |
| * Copyright (C) 2003-2012 Broadcom Corporation |
| * |
| * Licensed under the Apache License, Version 2.0 (the "License"); |
| * you may not use this file except in compliance with the License. |
| * You may obtain a copy of the License at: |
| * |
| * http://www.apache.org/licenses/LICENSE-2.0 |
| * |
| * Unless required by applicable law or agreed to in writing, software |
| * distributed under the License is distributed on an "AS IS" BASIS, |
| * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. |
| * See the License for the specific language governing permissions and |
| * limitations under the License. |
| * |
| ******************************************************************************/ |
| |
| /***************************************************************************** |
| * Data types |
| ****************************************************************************/ |
| |
| /* ASCII character string of arguments to the AT command */ |
| #define BTA_HF_CLIENT_AT_MAX_LEN 512 |
| |
| /* AT command table element */ |
| typedef struct |
| { |
| const char *p_cmd; /* AT command string */ |
| uint8_t arg_type; /* allowable argument type syntax */ |
| uint8_t fmt; /* whether arg is int or string */ |
| uint8_t min; /* minimum value for int arg */ |
| int16_t max; /* maximum value for int arg */ |
| } tBTA_AG_AT_CMD; |
| |
| /* callback function executed when command is parsed */ |
| typedef void (tBTA_AG_AT_CMD_CBACK)(void *p_user, uint16_t cmd, uint8_t arg_type, |
| char *p_arg, int16_t int_arg); |
| |
| /* callback function executed to send "ERROR" result code */ |
| typedef void (tBTA_AG_AT_ERR_CBACK)(void *p_user, bool unknown, char *p_arg); |
| |
| enum |
| { |
| BTA_HF_CLIENT_AT_NONE, |
| BTA_HF_CLIENT_AT_BRSF, |
| BTA_HF_CLIENT_AT_BAC, |
| BTA_HF_CLIENT_AT_CIND, |
| BTA_HF_CLIENT_AT_CIND_STATUS, |
| BTA_HF_CLIENT_AT_CMER, |
| BTA_HF_CLIENT_AT_CHLD, |
| BTA_HF_CLIENT_AT_CMEE, |
| BTA_HF_CLIENT_AT_BIA, |
| BTA_HF_CLIENT_AT_CLIP, |
| BTA_HF_CLIENT_AT_CCWA, |
| BTA_HF_CLIENT_AT_COPS, |
| BTA_HF_CLIENT_AT_CLCC, |
| BTA_HF_CLIENT_AT_BVRA, |
| BTA_HF_CLIENT_AT_VGS, |
| BTA_HF_CLIENT_AT_VGM, |
| BTA_HF_CLIENT_AT_ATD, |
| BTA_HF_CLIENT_AT_BLDN, |
| BTA_HF_CLIENT_AT_ATA, |
| BTA_HF_CLIENT_AT_CHUP, |
| BTA_HF_CLIENT_AT_BTRH, |
| BTA_HF_CLIENT_AT_VTS, |
| BTA_HF_CLIENT_AT_BCC, |
| BTA_HF_CLIENT_AT_BCS, |
| BTA_HF_CLIENT_AT_CNUM, |
| BTA_HF_CLIENT_AT_NREC, |
| BTA_HF_CLIENT_AT_BINP, |
| }; |
| |
| typedef uint8_t tBTA_HF_CLIENT_AT_CMD; |
| |
| /* Maximum combined buffer for received AT events string */ |
| #define BTA_HF_CLIENT_AT_PARSER_MAX_LEN 4096 |
| |
| /* This structure holds prepared AT command queued for sending */ |
| struct queued_at_cmd{ |
| tBTA_HF_CLIENT_AT_CMD cmd; |
| char buf[BTA_HF_CLIENT_AT_MAX_LEN]; |
| uint16_t buf_len; |
| struct queued_at_cmd *next; |
| }; |
| typedef struct queued_at_cmd tBTA_HF_CLIENT_AT_QCMD; |
| |
| /* Maximum number of indicators */ |
| #define BTA_HF_CLIENT_AT_INDICATOR_COUNT 20 |
| |
| /* AT command parsing control block */ |
| typedef struct |
| { |
| char buf[BTA_HF_CLIENT_AT_PARSER_MAX_LEN + 1]; /* extra byte to always have \0 at the end */ |
| unsigned int offset; |
| tBTA_HF_CLIENT_AT_CMD current_cmd; |
| tBTA_HF_CLIENT_AT_QCMD *queued_cmd; |
| alarm_t *resp_timer; /* AT response timer */ |
| alarm_t *hold_timer; /* AT hold timer */ |
| |
| /* CIND: lookup table to store the sequence of incoming indicators and their values |
| so when their values come later, we know which value in sequence match certain indicator */ |
| int indicator_lookup[BTA_HF_CLIENT_AT_INDICATOR_COUNT]; |
| |
| } tBTA_HF_CLIENT_AT_CB; |
| |
| /***************************************************************************** |
| * Functions |
| ****************************************************************************/ |
| |
| void bta_hf_client_at_init(void); |
| void bta_hf_client_at_reset(void); |