2005-11-11 05:05:14 +08:00
|
|
|
/*
|
|
|
|
*
|
|
|
|
* BlueZ - Bluetooth protocol stack for Linux
|
|
|
|
*
|
2010-01-02 09:08:17 +08:00
|
|
|
* Copyright (C) 2004-2010 Marcel Holtmann <marcel@holtmann.org>
|
2005-11-11 05:05:14 +08:00
|
|
|
*
|
|
|
|
*
|
|
|
|
* This program is free software; you can redistribute it and/or modify
|
|
|
|
* it under the terms of the GNU General Public License as published by
|
|
|
|
* the Free Software Foundation; either version 2 of the License, or
|
|
|
|
* (at your option) any later version.
|
|
|
|
*
|
|
|
|
* This program 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 General Public License for more details.
|
|
|
|
*
|
|
|
|
* You should have received a copy of the GNU General Public License
|
|
|
|
* along with this program; 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 <errno.h>
|
2005-11-12 05:13:25 +08:00
|
|
|
#include <fcntl.h>
|
|
|
|
#include <unistd.h>
|
|
|
|
#include <string.h>
|
2005-11-11 05:05:14 +08:00
|
|
|
#include <stdint.h>
|
2005-11-12 05:13:25 +08:00
|
|
|
#include <termios.h>
|
|
|
|
|
|
|
|
#include "csr.h"
|
2005-12-03 03:34:29 +08:00
|
|
|
#include "ubcsp.h"
|
2005-11-11 05:05:14 +08:00
|
|
|
|
|
|
|
static uint16_t seqnum = 0x0000;
|
|
|
|
|
2005-11-12 05:13:25 +08:00
|
|
|
static int fd = -1;
|
|
|
|
|
2005-11-12 06:49:28 +08:00
|
|
|
static struct ubcsp_packet send_packet;
|
|
|
|
static uint8_t send_buffer[512];
|
|
|
|
|
|
|
|
static struct ubcsp_packet receive_packet;
|
|
|
|
static uint8_t receive_buffer[512];
|
|
|
|
|
2010-11-23 07:03:12 +08:00
|
|
|
int csr_open_bcsp(char *device, speed_t bcsp_rate)
|
2005-11-11 05:05:14 +08:00
|
|
|
{
|
2005-11-12 05:13:25 +08:00
|
|
|
struct termios ti;
|
2005-11-12 06:49:28 +08:00
|
|
|
uint8_t delay, activity = 0x00;
|
|
|
|
int timeout = 0;
|
2005-11-11 05:05:14 +08:00
|
|
|
|
2005-11-12 05:13:25 +08:00
|
|
|
if (!device)
|
|
|
|
device = "/dev/ttyS0";
|
|
|
|
|
|
|
|
fd = open(device, O_RDWR | O_NOCTTY);
|
|
|
|
if (fd < 0) {
|
|
|
|
fprintf(stderr, "Can't open serial port: %s (%d)\n",
|
|
|
|
strerror(errno), errno);
|
|
|
|
return -1;
|
|
|
|
}
|
|
|
|
|
|
|
|
tcflush(fd, TCIOFLUSH);
|
|
|
|
|
|
|
|
if (tcgetattr(fd, &ti) < 0) {
|
|
|
|
fprintf(stderr, "Can't get port settings: %s (%d)\n",
|
|
|
|
strerror(errno), errno);
|
|
|
|
close(fd);
|
|
|
|
return -1;
|
|
|
|
}
|
|
|
|
|
|
|
|
cfmakeraw(&ti);
|
|
|
|
|
|
|
|
ti.c_cflag |= CLOCAL;
|
|
|
|
ti.c_cflag &= ~CRTSCTS;
|
|
|
|
ti.c_cflag |= PARENB;
|
|
|
|
ti.c_cflag &= ~PARODD;
|
|
|
|
ti.c_cflag &= ~CSIZE;
|
|
|
|
ti.c_cflag |= CS8;
|
|
|
|
ti.c_cflag &= ~CSTOPB;
|
|
|
|
|
|
|
|
ti.c_cc[VMIN] = 1;
|
|
|
|
ti.c_cc[VTIME] = 0;
|
|
|
|
|
2010-11-23 07:03:12 +08:00
|
|
|
cfsetospeed(&ti, bcsp_rate);
|
2005-11-12 05:13:25 +08:00
|
|
|
|
|
|
|
if (tcsetattr(fd, TCSANOW, &ti) < 0) {
|
|
|
|
fprintf(stderr, "Can't change port settings: %s (%d)\n",
|
|
|
|
strerror(errno), errno);
|
|
|
|
close(fd);
|
|
|
|
return -1;
|
|
|
|
}
|
|
|
|
|
|
|
|
tcflush(fd, TCIOFLUSH);
|
|
|
|
|
|
|
|
if (fcntl(fd, F_SETFL, fcntl(fd, F_GETFL, 0) | O_NONBLOCK) < 0) {
|
|
|
|
fprintf(stderr, "Can't set non blocking mode: %s (%d)\n",
|
|
|
|
strerror(errno), errno);
|
|
|
|
close(fd);
|
|
|
|
return -1;
|
|
|
|
}
|
|
|
|
|
2005-11-12 06:49:28 +08:00
|
|
|
memset(&send_packet, 0, sizeof(send_packet));
|
|
|
|
memset(&receive_packet, 0, sizeof(receive_packet));
|
|
|
|
|
|
|
|
ubcsp_initialize();
|
|
|
|
|
|
|
|
send_packet.length = 512;
|
|
|
|
send_packet.payload = send_buffer;
|
|
|
|
|
|
|
|
receive_packet.length = 512;
|
|
|
|
receive_packet.payload = receive_buffer;
|
|
|
|
|
|
|
|
ubcsp_receive_packet(&receive_packet);
|
|
|
|
|
|
|
|
while (1) {
|
|
|
|
delay = ubcsp_poll(&activity);
|
|
|
|
|
|
|
|
if (activity & UBCSP_PACKET_RECEIVED)
|
|
|
|
break;
|
|
|
|
|
|
|
|
if (delay) {
|
|
|
|
usleep(delay * 100);
|
|
|
|
|
2009-05-11 00:32:09 +08:00
|
|
|
if (timeout++ > 5000) {
|
2005-11-12 06:49:28 +08:00
|
|
|
fprintf(stderr, "Initialization timed out\n");
|
|
|
|
return -1;
|
|
|
|
}
|
|
|
|
}
|
|
|
|
}
|
|
|
|
|
2005-11-12 05:13:25 +08:00
|
|
|
return 0;
|
2005-11-11 05:05:14 +08:00
|
|
|
}
|
|
|
|
|
2005-11-12 06:49:28 +08:00
|
|
|
void put_uart(uint8_t ch)
|
|
|
|
{
|
2006-07-26 21:32:44 +08:00
|
|
|
if (write(fd, &ch, 1) < 0)
|
|
|
|
fprintf(stderr, "UART write error\n");
|
2005-11-12 06:49:28 +08:00
|
|
|
}
|
|
|
|
|
|
|
|
uint8_t get_uart(uint8_t *ch)
|
|
|
|
{
|
|
|
|
int res = read(fd, ch, 1);
|
|
|
|
return res > 0 ? res : 0;
|
|
|
|
}
|
|
|
|
|
2005-11-11 05:05:14 +08:00
|
|
|
static int do_command(uint16_t command, uint16_t seqnum, uint16_t varid, uint8_t *value, uint16_t length)
|
|
|
|
{
|
2005-11-12 06:49:28 +08:00
|
|
|
unsigned char cp[254], rp[254];
|
|
|
|
uint8_t cmd[10];
|
|
|
|
uint16_t size;
|
|
|
|
uint8_t delay, activity = 0x00;
|
|
|
|
int timeout = 0, sent = 0;
|
2005-11-11 05:05:14 +08:00
|
|
|
|
2005-11-12 06:49:28 +08:00
|
|
|
size = (length < 8) ? 9 : ((length + 1) / 2) + 5;
|
|
|
|
|
|
|
|
cmd[0] = command & 0xff;
|
|
|
|
cmd[1] = command >> 8;
|
|
|
|
cmd[2] = size & 0xff;
|
|
|
|
cmd[3] = size >> 8;
|
|
|
|
cmd[4] = seqnum & 0xff;
|
|
|
|
cmd[5] = seqnum >> 8;
|
|
|
|
cmd[6] = varid & 0xff;
|
|
|
|
cmd[7] = varid >> 8;
|
|
|
|
cmd[8] = 0x00;
|
|
|
|
cmd[9] = 0x00;
|
|
|
|
|
|
|
|
memset(cp, 0, sizeof(cp));
|
|
|
|
cp[0] = 0x00;
|
|
|
|
cp[1] = 0xfc;
|
|
|
|
cp[2] = (size * 2) + 1;
|
|
|
|
cp[3] = 0xc2;
|
|
|
|
memcpy(cp + 4, cmd, sizeof(cmd));
|
|
|
|
memcpy(cp + 14, value, length);
|
|
|
|
|
|
|
|
receive_packet.length = 512;
|
|
|
|
ubcsp_receive_packet(&receive_packet);
|
|
|
|
|
|
|
|
send_packet.channel = 5;
|
|
|
|
send_packet.reliable = 1;
|
|
|
|
send_packet.length = (size * 2) + 4;
|
|
|
|
memcpy(send_packet.payload, cp, (size * 2) + 4);
|
|
|
|
|
|
|
|
ubcsp_send_packet(&send_packet);
|
|
|
|
|
|
|
|
while (1) {
|
|
|
|
delay = ubcsp_poll(&activity);
|
|
|
|
|
|
|
|
if (activity & UBCSP_PACKET_SENT) {
|
|
|
|
switch (varid) {
|
|
|
|
case CSR_VARID_COLD_RESET:
|
|
|
|
case CSR_VARID_WARM_RESET:
|
|
|
|
case CSR_VARID_COLD_HALT:
|
|
|
|
case CSR_VARID_WARM_HALT:
|
|
|
|
return 0;
|
|
|
|
}
|
|
|
|
|
|
|
|
sent = 1;
|
|
|
|
timeout = 0;
|
|
|
|
}
|
|
|
|
|
2008-07-11 14:45:36 +08:00
|
|
|
if (activity & UBCSP_PACKET_RECEIVED) {
|
|
|
|
if (sent && receive_packet.channel == 5 &&
|
|
|
|
receive_packet.payload[0] == 0xff) {
|
|
|
|
memcpy(rp, receive_packet.payload,
|
|
|
|
receive_packet.length);
|
|
|
|
break;
|
|
|
|
}
|
|
|
|
|
|
|
|
receive_packet.length = 512;
|
|
|
|
ubcsp_receive_packet(&receive_packet);
|
|
|
|
timeout = 0;
|
|
|
|
}
|
|
|
|
|
2005-11-12 06:49:28 +08:00
|
|
|
if (delay) {
|
|
|
|
usleep(delay * 100);
|
|
|
|
|
2009-05-11 00:32:09 +08:00
|
|
|
if (timeout++ > 5000) {
|
2005-11-12 06:49:28 +08:00
|
|
|
fprintf(stderr, "Operation timed out\n");
|
|
|
|
return -1;
|
|
|
|
}
|
|
|
|
}
|
|
|
|
}
|
|
|
|
|
|
|
|
if (rp[0] != 0xff || rp[2] != 0xc2) {
|
|
|
|
errno = EIO;
|
|
|
|
return -1;
|
|
|
|
}
|
|
|
|
|
|
|
|
if ((rp[11] + (rp[12] << 8)) != 0) {
|
|
|
|
errno = ENXIO;
|
|
|
|
return -1;
|
|
|
|
}
|
|
|
|
|
|
|
|
memcpy(value, rp + 13, length);
|
|
|
|
|
|
|
|
return 0;
|
2005-11-11 05:05:14 +08:00
|
|
|
}
|
|
|
|
|
|
|
|
int csr_read_bcsp(uint16_t varid, uint8_t *value, uint16_t length)
|
|
|
|
{
|
|
|
|
return do_command(0x0000, seqnum++, varid, value, length);
|
|
|
|
}
|
|
|
|
|
|
|
|
int csr_write_bcsp(uint16_t varid, uint8_t *value, uint16_t length)
|
|
|
|
{
|
|
|
|
return do_command(0x0002, seqnum++, varid, value, length);
|
|
|
|
}
|
|
|
|
|
|
|
|
void csr_close_bcsp(void)
|
|
|
|
{
|
2005-11-12 05:13:25 +08:00
|
|
|
close(fd);
|
2005-11-11 05:05:14 +08:00
|
|
|
}
|