This patch adds AT chat module skeleton used for sending and receiving
AT commands. This patch contains only part required for reading.
---
src/shared/blueatchat.c | 92 +++++++++++++++++++++++++++++++++++++++++++++++
src/shared/blueatchat.h | 50 ++++++++++++++++++++++++++
2 files changed, 142 insertions(+)
create mode 100644 src/shared/blueatchat.c
create mode 100644 src/shared/blueatchat.h
diff --git a/src/shared/blueatchat.c b/src/shared/blueatchat.c
new file mode 100644
index 0000000..be26bad
--- /dev/null
+++ b/src/shared/blueatchat.c
@@ -0,0 +1,92 @@
+/*
+ *
+ * BlueZ - Bluetooth protocol stack for Linux
+ *
+ * Copyright (C) 2013 Intel Corporation. All rights reserved.
+ *
+ *
+ * This library is free software; you can redistribute it and/or
+ * modify it under the terms of the GNU Lesser General Public
+ * License as published by the Free Software Foundation; either
+ * version 2.1 of the License, or (at your option) any later version.
+ *
+ * This library is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
+ * Lesser General Public License for more details.
+ *
+ * You should have received a copy of the GNU Lesser General Public
+ * License along with this library; if not, write to the Free Software
+ * Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA
+ *
+ */
+
+#include <stdlib.h>
+#include <glib.h>
+
+#include "blueatchat.h"
+#include "util.h"
+
+#define BLUEATCHAT_DEBUG(session, ...) (util_debug(session->debug_callback, \
+ (void *)__func__, __VA_ARGS__))
+struct blueatchat_session {
+ struct blueatchat_config *config;
+ struct blueatchat_cmd_descriptor *cmd_list;
+ GSList *data; /* stores parsed data */
+ blueatchat_debug_func_t debug_callback;
+ /* TODO: Add ring buffer. */
+};
+
+
+bool blueatchat_read(struct blueatchat_session *session, GIOChannel *gio)
+{
+ GIOStatus ret = G_IO_STATUS_EOF;
+ GError *err = NULL;
+ gchar *msg;
+ gsize len;
+
+ /* TODO: use ring buffer inside the session object */
+ ret = g_io_channel_read_line(gio, &msg, &len, NULL, &err);
+ if (ret == G_IO_STATUS_ERROR)
+ BLUEATCHAT_DEBUG(session, "Error reading: %s\n", err->message);
+ else
+ BLUEATCHAT_DEBUG(session, "Blueatchat red %u bytes: %s",
+ (unsigned int)len, msg);
+
+ /* TODO: process buffered data
+ * -> check for complete command (check for head, tail)
+ * -> start consuming buffered data and parsing it
+ * -> iterate through session->cmd_list and match commands
+ * -> peek a char to choose appropriate parser routine or use
+ * syntax descriptor string?
+ * -> fill in sessions GSList* data with parsed data
+ * -> call '*(session->cmd_list[cmd_index].notify)(session->data)
+ */
+ g_free(msg);
+ return true;
+}
+
+struct blueatchat_session *blueatchat_init_session(
+ struct blueatchat_config *config,
+ struct blueatchat_cmd_descriptor *cmd_list,
+ blueatchat_debug_func_t debug_fun)
+{
+ struct blueatchat_session *session =
+ g_new(struct blueatchat_session, 1);
+
+ session->cmd_list = cmd_list;
+ session->config = config;
+ session->debug_callback = debug_fun;
+ /* TODO: initialize ring buffer */
+ return session;
+}
+
+void blueatchat_cleanup_session(struct blueatchat_session *session)
+{
+ session->cmd_list = NULL;
+ session->config = NULL;
+ session->debug_callback = NULL;
+
+ g_free(session);
+ session = NULL;
+}
diff --git a/src/shared/blueatchat.h b/src/shared/blueatchat.h
new file mode 100644
index 0000000..9c1ca1b
--- /dev/null
+++ b/src/shared/blueatchat.h
@@ -0,0 +1,50 @@
+/*
+ *
+ * BlueZ - Bluetooth protocol stack for Linux
+ *
+ * Copyright (C) 2013 Intel Corporation. All rights reserved.
+ *
+ *
+ * This library is free software; you can redistribute it and/or
+ * modify it under the terms of the GNU Lesser General Public
+ * License as published by the Free Software Foundation; either
+ * version 2.1 of the License, or (at your option) any later version.
+ *
+ * This library is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
+ * Lesser General Public License for more details.
+ *
+ * You should have received a copy of the GNU Lesser General Public
+ * License along with this library; if not, write to the Free Software
+ * Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA
+ *
+ */
+
+#include <stdbool.h>
+
+typedef void (*blueatchat_debug_func_t)(const char *str, void *user_data);
+typedef bool (*blueatchat_notify_cb)(GSList *);
+
+/* command/response descriptor */
+struct blueatchat_cmd_descriptor {
+ char *cmd; /* cmd/response string to match */
+ char *cmd_descr; /* data descriptor - expected data to be parsed */
+ blueatchat_notify_cb notify; /* callback for the given command */
+};
+
+/* simple config */
+struct blueatchat_config {
+ size_t buff_size;
+ char *cmd_prefix;
+ char *cmd_postfix;
+};
+
+struct blueatchat_session;
+
+struct blueatchat_session *blueatchat_init_session(
+ struct blueatchat_config *config,
+ struct blueatchat_cmd_descriptor *cmd_list,
+ blueatchat_debug_func_t debug_fun);
+void blueatchat_cleanup_session(struct blueatchat_session *session);
+bool blueatchat_read(struct blueatchat_session *session, GIOChannel *gio);
--
1.7.9.5
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