| Hemant Gupta | 41d4a26 | 2013-08-19 18:33:01 +0530 | [diff] [blame^] | 1 | /****************************************************************************** |
| 2 | * |
| 3 | * Copyright (c) 2014 The Android Open Source Project |
| 4 | * Copyright (C) 2003-2012 Broadcom Corporation |
| 5 | * |
| 6 | * Licensed under the Apache License, Version 2.0 (the "License"); |
| 7 | * you may not use this file except in compliance with the License. |
| 8 | * You may obtain a copy of the License at: |
| 9 | * |
| 10 | * http://www.apache.org/licenses/LICENSE-2.0 |
| 11 | * |
| 12 | * Unless required by applicable law or agreed to in writing, software |
| 13 | * distributed under the License is distributed on an "AS IS" BASIS, |
| 14 | * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. |
| 15 | * See the License for the specific language governing permissions and |
| 16 | * limitations under the License. |
| 17 | * |
| 18 | ******************************************************************************/ |
| 19 | |
| 20 | /***************************************************************************** |
| 21 | ** Data types |
| 22 | *****************************************************************************/ |
| 23 | |
| 24 | /* ASCII character string of arguments to the AT command */ |
| 25 | #define BTA_HF_CLIENT_AT_MAX_LEN 512 |
| 26 | |
| 27 | /* AT command table element */ |
| 28 | typedef struct |
| 29 | { |
| 30 | const char *p_cmd; /* AT command string */ |
| 31 | UINT8 arg_type; /* allowable argument type syntax */ |
| 32 | UINT8 fmt; /* whether arg is int or string */ |
| 33 | UINT8 min; /* minimum value for int arg */ |
| 34 | INT16 max; /* maximum value for int arg */ |
| 35 | } tBTA_AG_AT_CMD; |
| 36 | |
| 37 | /* callback function executed when command is parsed */ |
| 38 | typedef void (tBTA_AG_AT_CMD_CBACK)(void *p_user, UINT16 cmd, UINT8 arg_type, |
| 39 | char *p_arg, INT16 int_arg); |
| 40 | |
| 41 | /* callback function executed to send "ERROR" result code */ |
| 42 | typedef void (tBTA_AG_AT_ERR_CBACK)(void *p_user, BOOLEAN unknown, char *p_arg); |
| 43 | |
| 44 | enum |
| 45 | { |
| 46 | BTA_HF_CLIENT_AT_NONE, |
| 47 | BTA_HF_CLIENT_AT_BRSF, |
| 48 | BTA_HF_CLIENT_AT_BAC, |
| 49 | BTA_HF_CLIENT_AT_CIND, |
| 50 | BTA_HF_CLIENT_AT_CIND_STATUS, |
| 51 | BTA_HF_CLIENT_AT_CMER, |
| 52 | BTA_HF_CLIENT_AT_CHLD, |
| 53 | BTA_HF_CLIENT_AT_CMEE, |
| 54 | BTA_HF_CLIENT_AT_BIA, |
| 55 | BTA_HF_CLIENT_AT_CLIP, |
| 56 | BTA_HF_CLIENT_AT_CCWA, |
| 57 | BTA_HF_CLIENT_AT_COPS, |
| 58 | BTA_HF_CLIENT_AT_CLCC, |
| 59 | BTA_HF_CLIENT_AT_BVRA, |
| 60 | BTA_HF_CLIENT_AT_VGS, |
| 61 | BTA_HF_CLIENT_AT_VGM, |
| 62 | BTA_HF_CLIENT_AT_ATD, |
| 63 | BTA_HF_CLIENT_AT_BLDN, |
| 64 | BTA_HF_CLIENT_AT_ATA, |
| 65 | BTA_HF_CLIENT_AT_CHUP, |
| 66 | BTA_HF_CLIENT_AT_BTRH, |
| 67 | BTA_HF_CLIENT_AT_VTS, |
| 68 | BTA_HF_CLIENT_AT_BCC, |
| 69 | BTA_HF_CLIENT_AT_BCS, |
| 70 | BTA_HF_CLIENT_AT_CNUM, |
| 71 | BTA_HF_CLIENT_AT_NREC, |
| 72 | BTA_HF_CLIENT_AT_BINP, |
| 73 | }; |
| 74 | |
| 75 | typedef UINT8 tBTA_HF_CLIENT_AT_CMD; |
| 76 | |
| 77 | /* Maximum combined buffer for received AT events string */ |
| 78 | #define BTA_HF_CLIENT_AT_PARSER_MAX_LEN 4096 |
| 79 | |
| 80 | /* This structure holds prepared AT command queued for sending */ |
| 81 | struct queued_at_cmd{ |
| 82 | tBTA_HF_CLIENT_AT_CMD cmd; |
| 83 | char buf[BTA_HF_CLIENT_AT_MAX_LEN]; |
| 84 | UINT16 buf_len; |
| 85 | struct queued_at_cmd *next; |
| 86 | }; |
| 87 | typedef struct queued_at_cmd tBTA_HF_CLIENT_AT_QCMD; |
| 88 | |
| 89 | /* Maximum number of indicators */ |
| 90 | #define BTA_HF_CLIENT_AT_INDICATOR_COUNT 20 |
| 91 | |
| 92 | /* AT command parsing control block */ |
| 93 | typedef struct |
| 94 | { |
| 95 | char buf[BTA_HF_CLIENT_AT_PARSER_MAX_LEN + 1]; /* extra byte to always have \0 at the end */ |
| 96 | unsigned int offset; |
| 97 | tBTA_HF_CLIENT_AT_CMD current_cmd; |
| 98 | tBTA_HF_CLIENT_AT_QCMD *queued_cmd; |
| 99 | |
| 100 | TIMER_LIST_ENT resp_timer; /* AT response timer */ |
| 101 | BOOLEAN resp_timer_on; /* TRUE if AT response timer is active */ |
| 102 | |
| 103 | TIMER_LIST_ENT hold_timer; /* AT hold timer */ |
| 104 | BOOLEAN hold_timer_on; /* TRUE if AT hold timer is active */ |
| 105 | |
| 106 | /* CIND: lookup table to store the sequence of incoming indicators and their values |
| 107 | so when their values come later, we know which value in sequence match certain indicator */ |
| 108 | int indicator_lookup[BTA_HF_CLIENT_AT_INDICATOR_COUNT]; |
| 109 | |
| 110 | } tBTA_HF_CLIENT_AT_CB; |
| 111 | |
| 112 | /***************************************************************************** |
| 113 | ** Functions |
| 114 | *****************************************************************************/ |
| 115 | |
| 116 | void bta_hf_client_at_init(void); |
| 117 | void bta_hf_client_at_reset(void); |