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/* bttester.c - Bluetooth Tester */
/*
* Copyright (c) 2015 Intel 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.
*/
#include <zephyr.h>
#include <stdio.h>
#include <string.h>
#include <stdint.h>
#include <toolchain.h>
#include <bluetooth/bluetooth.h>
#include <misc/printk.h>
#include <misc/byteorder.h>
#include <console/uart_pipe.h>
#include "bttester.h"
#define STACKSIZE 2048
static char __stack stack[STACKSIZE];
#define CMD_QUEUED 2
static uint8_t cmd_buf[CMD_QUEUED * BTP_MTU];
static struct nano_fifo cmds_queue;
static struct nano_fifo avail_queue;
static void supported_commands(uint8_t *data, uint16_t len)
{
uint8_t buf[1];
struct core_read_supported_commands_rp *rp = (void *) buf;
buf[0] = 1 << CORE_READ_SUPPORTED_COMMANDS;
buf[0] |= 1 << CORE_READ_SUPPORTED_SERVICES;
buf[0] |= 1 << CORE_REGISTER_SERVICE;
tester_send(BTP_SERVICE_ID_CORE, CORE_READ_SUPPORTED_COMMANDS,
BTP_INDEX_NONE, (uint8_t *) rp, sizeof(buf));
}
static void supported_services(uint8_t *data, uint16_t len)
{
uint8_t buf[1];
struct core_read_supported_services_rp *rp = (void *) buf;
buf[0] = 1 << BTP_SERVICE_ID_CORE;
buf[0] |= 1 << BTP_SERVICE_ID_GAP;
buf[0] |= 1 << BTP_SERVICE_ID_GATT;
tester_send(BTP_SERVICE_ID_CORE, CORE_READ_SUPPORTED_SERVICES,
BTP_INDEX_NONE, (uint8_t *) rp, sizeof(buf));
}
static void register_service(uint8_t *data, uint16_t len)
{
struct core_register_service_cmd *cmd = (void *) data;
uint8_t status;
switch (cmd->id) {
case BTP_SERVICE_ID_GAP:
status = tester_init_gap();
break;
case BTP_SERVICE_ID_GATT:
status = tester_init_gatt();
break;
default:
status = BTP_STATUS_FAILED;
break;
}
tester_rsp(BTP_SERVICE_ID_CORE, CORE_REGISTER_SERVICE, BTP_INDEX_NONE,
status);
}
static void handle_core(uint8_t opcode, uint8_t index, uint8_t *data,
uint16_t len)
{
if (index != BTP_INDEX_NONE) {
tester_rsp(BTP_SERVICE_ID_CORE, opcode, index, BTP_STATUS_FAILED);
return;
}
switch (opcode) {
case CORE_READ_SUPPORTED_COMMANDS:
supported_commands(data, len);
return;
case CORE_READ_SUPPORTED_SERVICES:
supported_services(data, len);
return;
case CORE_REGISTER_SERVICE:
register_service(data, len);
return;
default:
tester_rsp(BTP_SERVICE_ID_CORE, opcode, BTP_INDEX_NONE,
BTP_STATUS_UNKNOWN_CMD);
return;
}
}
static void cmd_handler(int arg1, int arg2)
{
while (1) {
struct btp_hdr *cmd;
uint16_t len;
cmd = nano_fiber_fifo_get(&cmds_queue, TICKS_UNLIMITED);
len = sys_le16_to_cpu(cmd->len);
/* TODO
* verify if service is registered before calling handler
*/
switch (cmd->service) {
case BTP_SERVICE_ID_CORE:
handle_core(cmd->opcode, cmd->index, cmd->data, len);
break;
case BTP_SERVICE_ID_GAP:
tester_handle_gap(cmd->opcode, cmd->index, cmd->data,
len);
break;
case BTP_SERVICE_ID_GATT:
tester_handle_gatt(cmd->opcode, cmd->index, cmd->data,
len);
break;
default:
tester_rsp(cmd->service, cmd->opcode, cmd->index,
BTP_STATUS_FAILED);
break;
}
nano_fiber_fifo_put(&avail_queue, cmd);
}
}
static uint8_t *recv_cb(uint8_t *buf, size_t *off)
{
struct btp_hdr *cmd = (void *) buf;
uint8_t *new_buf;
uint16_t len;
if (*off < sizeof(*cmd)) {
return buf;
}
len = sys_le16_to_cpu(cmd->len);
if (len > BTP_MTU - sizeof(*cmd)) {
printk("BT tester: invalid packet length\n");
*off = 0;
return buf;
}
if (*off < sizeof(*cmd) + len) {
return buf;
}
new_buf = nano_fifo_get(&avail_queue, TICKS_NONE);
if (!new_buf) {
printk("BT tester: RX overflow\n");
*off = 0;
return buf;
}
nano_fifo_put(&cmds_queue, buf);
*off = 0;
return new_buf;
}
void tester_init(void)
{
int i;
nano_fifo_init(&cmds_queue);
nano_fifo_init(&avail_queue);
for (i = 0; i < CMD_QUEUED; i++) {
nano_fifo_put(&avail_queue, &cmd_buf[i * BTP_MTU]);
}
task_fiber_start(stack, STACKSIZE, cmd_handler, 0, 0, 7, 0);
uart_pipe_register(nano_fifo_get(&avail_queue, TICKS_NONE),
BTP_MTU, recv_cb);
printk("BT tester initialized\n");
}
void tester_send(uint8_t service, uint8_t opcode, uint8_t index, uint8_t *data,
size_t len)
{
struct btp_hdr msg;
msg.service = service;
msg.opcode = opcode;
msg.index = index;
msg.len = len;
uart_pipe_send((uint8_t *)&msg, sizeof(msg));
if (data && len) {
uart_pipe_send(data, len);
}
}
void tester_rsp(uint8_t service, uint8_t opcode, uint8_t index, uint8_t status)
{
struct btp_status s;
if (status == BTP_STATUS_SUCCESS) {
tester_send(service, opcode, index, NULL, 0);
return;
}
s.code = status;
tester_send(service, BTP_STATUS, index, (uint8_t *) &s, sizeof(s));
}
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