Bluetooth: Add support for HFP Client role.
Implementation changes in BTA and BTIF layer to support
HFP Client role.
Change-Id: I9f939c18e8f989a50f298d0b313c5a0959c030a7
diff --git a/bta/hf_client/bta_hf_client_at.h b/bta/hf_client/bta_hf_client_at.h
new file mode 100644
index 0000000..917c605
--- /dev/null
+++ b/bta/hf_client/bta_hf_client_at.h
@@ -0,0 +1,117 @@
+/******************************************************************************
+ *
+ * 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 arg_type; /* allowable argument type syntax */
+ UINT8 fmt; /* whether arg is int or string */
+ UINT8 min; /* minimum value for int arg */
+ INT16 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 cmd, UINT8 arg_type,
+ char *p_arg, INT16 int_arg);
+
+/* callback function executed to send "ERROR" result code */
+typedef void (tBTA_AG_AT_ERR_CBACK)(void *p_user, BOOLEAN 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 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 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;
+
+ TIMER_LIST_ENT resp_timer; /* AT response timer */
+ BOOLEAN resp_timer_on; /* TRUE if AT response timer is active */
+
+ TIMER_LIST_ENT hold_timer; /* AT hold timer */
+ BOOLEAN hold_timer_on; /* TRUE if AT hold timer is active */
+
+ /* 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);