emulator: Add support for Bluetooth host abstraction

Makefile.tools

@@ -31,7 +31,8 @@ emulator_btvirt_SOURCES = emulator/main.c monitor/bt.h \
 					monitor/mainloop.h monitor/mainloop.c \
 					emulator/server.h emulator/server.c \
 					emulator/vhci.h emulator/vhci.c \
-					emulator/btdev.h emulator/btdev.c
+					emulator/btdev.h emulator/btdev.c \
+					emulator/bthost.h emulator/bthost.c
 
 emulator_b1ee_SOURCES = emulator/b1ee.c monitor/mainloop.h monitor/mainloop.c
 endif

emulator/bthost.c

@@ -0,0 +1,155 @@
+/*
+ *
+ *  BlueZ - Bluetooth protocol stack for Linux
+ *
+ *  Copyright (C) 2011-2012  Intel Corporation
+ *  Copyright (C) 2004-2010  Marcel Holtmann <marcel@holtmann.org>
+ *
+ *
+ *  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
+ *
+ */
+
+#ifdef HAVE_CONFIG_H
+#include <config.h>
+#endif
+
+#include <stdio.h>
+#include <ctype.h>
+#include <stdlib.h>
+#include <string.h>
+
+#include "monitor/bt.h"
+#include "bthost.h"
+
+#define le16_to_cpu(val) (val)
+#define le32_to_cpu(val) (val)
+#define cpu_to_le16(val) (val)
+#define cpu_to_le32(val) (val)
+
+struct bthost {
+	bthost_send_func send_handler;
+	void *send_data;
+};
+
+struct bthost *bthost_create(void)
+{
+	struct bthost *bthost;
+
+	bthost = malloc(sizeof(*bthost));
+	if (!bthost)
+		return NULL;
+
+	memset(bthost, 0, sizeof(*bthost));
+
+	return bthost;
+}
+
+void bthost_destroy(struct bthost *bthost)
+{
+	if (!bthost)
+		return;
+
+	free(bthost);
+}
+
+void bthost_set_send_handler(struct bthost *bthost, bthost_send_func handler,
+							void *user_data)
+{
+	if (!bthost)
+		return;
+
+	bthost->send_handler = handler;
+	bthost->send_data = user_data;
+}
+
+static void send_packet(struct bthost *bthost, const void *data, uint16_t len)
+{
+	if (!bthost->send_handler)
+		return;
+
+	bthost->send_handler(data, len, bthost->send_data);
+}
+
+static void send_command(struct bthost *bthost, uint16_t opcode,
+						const void *data, uint8_t len)
+{
+	struct bt_hci_cmd_hdr *hdr;
+	uint16_t pkt_len;
+	void *pkt_data;
+
+	pkt_len = 1 + sizeof(*hdr) + len;
+
+	pkt_data = malloc(pkt_len);
+	if (!pkt_data)
+		return;
+
+	((uint8_t *) pkt_data)[0] = BT_H4_CMD_PKT;
+
+	hdr = pkt_data + 1;
+	hdr->opcode = cpu_to_le16(opcode);
+	hdr->plen = len;
+
+	if (len > 0)
+		memcpy(pkt_data + 1 + sizeof(*hdr), data, len);
+
+	send_packet(bthost, pkt_data, pkt_len);
+
+	free(pkt_data);
+}
+
+static void process_evt(struct bthost *bthost, const void *data, uint16_t len)
+{
+	const struct bt_hci_evt_hdr *hdr = data;
+
+	if (len < sizeof(*hdr))
+		return;
+
+	printf("Unsupported event 0x%2.2x\n", hdr->evt);
+}
+
+void bthost_receive_h4(struct bthost *bthost, const void *data, uint16_t len)
+{
+	uint8_t pkt_type;
+
+	if (!bthost)
+		return;
+
+	if (len < 1)
+		return;
+
+	pkt_type = ((const uint8_t *) data)[0];
+
+	switch (pkt_type) {
+	case BT_H4_EVT_PKT:
+		process_evt(bthost, data + 1, len - 1);
+		break;
+	default:
+		printf("Unsupported packet 0x%2.2x\n", pkt_type);
+		break;
+	}
+}
+
+void bthost_start(struct bthost *bthost)
+{
+	if (!bthost)
+		return;
+
+	send_command(bthost, BT_HCI_CMD_RESET, NULL, 0);
+}
+
+void bthost_stop(struct bthost *bthost)
+{
+}

emulator/bthost.h

@@ -0,0 +1,41 @@
+/*
+ *
+ *  BlueZ - Bluetooth protocol stack for Linux
+ *
+ *  Copyright (C) 2011-2012  Intel Corporation
+ *  Copyright (C) 2004-2010  Marcel Holtmann <marcel@holtmann.org>
+ *
+ *
+ *  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 <stdint.h>
+
+typedef void (*bthost_send_func) (const void *data, uint16_t len,
+							void *user_data);
+
+struct bthost;
+
+struct bthost *bthost_create(void);
+void bthost_destroy(struct bthost *bthost);
+
+void bthost_set_send_handler(struct bthost *bthost, bthost_send_func handler,
+							void *user_data);
+
+void bthost_receive_h4(struct bthost *bthost, const void *data, uint16_t len);
+
+void bthost_start(struct bthost *bthost);
+void bthost_stop(struct bthost *bthost);