void buzzer_callback()
{
/* Start by incrementing the counter; we are playing the next note
* This is here because the index must atually point to the note
* currently playing, so main knows if we can go to LPM3 */
buzzer_counter++;
/* Here the -1 is needed for the offset of buzzer_counter due to the
* increment above. */
note n = *(buzzer_buffer + buzzer_counter - 1);
/* 0x000F is the "stop bit" */
if(PITCH(n) == 0) {
/* Stop buzzer */
buzzer_stop();
return;
}
if (PITCH(n) == 0x000F) {
/* Stop the timer! We are playing a rest */
TA1CTL &= ~MC_3;
} else {
/* Set PWM frequency */
TA1CCR0 = base_notes[PITCH(n)] >> OCTAVE(n);
/* Start the timer */
TA1CTL |= MC__UP;
}
/* Delay for DURATION(*n) milliseconds, */
timer0_delay_callback(DURATION(n), &buzzer_callback);
}
static ssize_t zili_demo_char_buzzer_write(struct file *fp, const char *buf, size_t count, loff_t *position){
unsigned long buzzer_status;
int ret;
ret = copy_from_user(&buzzer_status, buf, sizeof(buzzer_status) );
if(ret){
printk("Fail to copy data from the user space to the kernel space!\n");
}
if( buzzer_status > 0 ){
printk("Write Buzzuer Status: %lu\n",buzzer_status);
set_freq(buzzer_status);
}
else{
buzzer_stop();
}
return sizeof(buzzer_status);
}
void buzzer_play(note *notes)
{
/* Allow buzzer PWM output on P2.7 */
P2SEL |= BIT7;
/* 0x000F is the "stop bit" */
while (PITCH(*notes) != 0x000F) {
if (PITCH(*notes) == 0) {
/* Stop the timer! We are playing a rest */
TA1CTL &= ~MC_3;
} else {
/* Set PWM frequency */
TA1CCR0 = base_notes[PITCH(*notes)] >> OCTAVE(*notes);
/* Start the timer */
TA1CTL |= MC__UP;
}
/* Delay for DURATION(*notes) milliseconds,
use LPM1 because we need SMCLK for tone generation */
timer0_delay(DURATION(*notes), LPM1_bits);
/* Advance to the next note */
notes++;
}
/* Stop buzzer */
buzzer_stop();
}
static int zili_demo_char_buzzer_close(struct inode *inode, struct file *file) {
buzzer_stop();
return 0;
}
static int zili_demo_char_buzzer_open(struct inode *inode, struct file *file) {
//map the IO physical memory address to virtual address
ZL_GPD0_CON_ADDR = ioremap(GPD0_CON_ADDR, 0x00000004);
ZL_GPD0_CON_DATA = ioremap(GPD0_CON_DATA, 0x00000004);
/*IO remap*/
ZL_TCFG0 = ioremap(TCFG0, 0x00000004);
ZL_TCFG1 = ioremap(TCFG1, 0x00000004);
ZL_TCNTB0 = ioremap(TCNTB0, 0x00000004);
ZL_TCMPB0 = ioremap(TCMPB0, 0x00000004);
ZL_TCON = ioremap(TCON, 0x00000004);
buzzer_stop();
printk("Device " DEVICE_NAME " open.\n");
return 0;
}
void stop_sound()
{
if (buzzer_init)
{
buzzer_stop();
printf("********CLOSED AUDIO BUFFER***********\n");
buzzer_init = 0;
}
}
static void __exit zili_demo_char_buzzer_dev_exit(void) {
buzzer_stop();
cdev_del(&dev_buzzer);
unregister_chrdev_region(devno, N_D);
printk("Device " DEVICE_NAME " unloaded.\n");
}
/*---------------------------------------------------------------------------*/
static void
shutdown_handler(uint8_t mode)
{
if(mode == LPM_MODE_SHUTDOWN) {
buzzer_stop();
SENSORS_DEACTIVATE(bmp_280_sensor);
SENSORS_DEACTIVATE(opt_3001_sensor);
SENSORS_DEACTIVATE(tmp_007_sensor);
SENSORS_DEACTIVATE(sht_21_sensor);
mpu_9250_sensor.configure(MPU_9250_SENSOR_SHUTDOWN, 0);
}
}
/*---------------------------------------------------------------------------*/
static void
pub_handler(const char *topic, uint16_t topic_len, const uint8_t *chunk,
uint16_t chunk_len)
{
DBG("Pub Handler: topic='%s' (len=%u), chunk_len=%u\n", topic, topic_len,
chunk_len);
/* If we don't like the length, ignore */
if(/*topic_len != 23 ||*/ chunk_len != 1) {
printf("Incorrect topic or chunk len. Ignored\n");
return;
}
/* If the format != json, ignore
if(strncmp(&topic[topic_len - 4], "json", 4) != 0) {
printf("Incorrect format\n");
}*/
if(strstr(topic, "/cmd/leds") != NULL) {
if(chunk[0] == '1') {
leds_on(LEDS_RED);
} else if(chunk[0] == '0') {
leds_off(LEDS_RED);
}
return;
}
#if BOARD_SENSORTAG
if(strstr(topic, "/cmd/buzz") != NULL) {
if(chunk[0] == '1') {
buzzer_start(1000);
} else if(chunk[0] == '0') {
buzzer_stop();
}
return;
}
#endif
}
void buzzer_play(note *notes)
{
/* TODO: Define correct behaviour here. Should we error out or just
* return? Should we return an error code? or just crash, to identify
* and eliminate any race condition? Or just replace the buffer? */
if(buzzer_buffer != NULL)
buzzer_stop();
uint8_t len = 0;
while (notes[len] != 0) len++;
len++; /* We count the end note to get actual length */
buzzer_buffer = malloc(len * sizeof(notes));
memcpy(buzzer_buffer, notes, len * sizeof(notes));
buzzer_counter = 0;
/* Allow buzzer PWM output on P2.7 */
P2SEL |= BIT7;
/* Play first note */
buzzer_callback();
}
int main()
{
char c;
{
putchar('1');
putchar('\n');
putchar('1');
putchar('\n');
putchar('1');
putchar('\r');
}
unsigned long delay = 0;
while(1)
{
buzzer_stop();
for(delay = 0; delay < 0xfffff * 2; delay++);
buzzer_ring();
for(delay = 0; delay < 0xfffff * 2; delay++);
}
while(1);
return 0;
}
void debug(void)
{
robot_information_t robot;
target_cam_t target_cam;
unsigned char str[10] = "\0";
unsigned short old_sw = 0,
start_sw =0,
old_limit_sw = 0;
float target_degree = 0.00;
transmit_usb("[ r : reset] \n\r");
transmit_usb("[ 1 : encoder]\n\r");
transmit_usb("[ 2 : AD]\n\r");
transmit_usb("[ 3 : coordinate]\n\r");
transmit_usb("[ 4 : sonic_waves]\n\r");
transmit_usb("[ 5 : encoder reset]\n\r");
transmit_usb("[ 6 : cam_inf]\n\r");
transmit_usb("[ 7 : target_cam]\n\r");
transmit_usb("[ 8 : inf&target]\n\r");
transmit_usb("[ 9 : start_switch]\n\r");
transmit_usb("[10 : limit_switch]\n\r");
transmit_usb("[11 : motor]\n\r");
transmit_usb("[12 : reverse motor]\n\r");
transmit_usb("[13 : stop motor]\n\r");
transmit_usb("[14 : arm motor]\n\r");
transmit_usb("[15 : reverse arm motor]\n\r");
//transmit_usb("[p : p gain adjustment]\n\r");
//transmit_usb("[d : d gain adjustment]\n\r");
GPIO_ResetBits(ENC_RESET);
while(strcmp(str, "r") != 0){
if(usb_available() != 0){
usb_get_string(str);
}
buzzer_stop();
//sonic_waves(&robot);
if(count_time(3) >= INTERRUPT_TIME){
reset_count_time(3);
get_robot_inf( &robot );
cam_data(&target_cam, &robot);
start_sw =positive_chattering(START_SW,1);
robot.sw.limit_sw = negative_chattering(LIMIT_SW,2);
robot.ad = get_ADC1_value(0);
}
if(strcmp(str, "1") == 0){
f_print(PC,"ENCL",robot.enc_cnt.l);
f_print(PC,"ENCR",robot.enc_cnt.r);
f_print(PC,"ENCF",robot.enc_cnt.f);
put_enter(PC);
}else if(strcmp(str, "2") == 0){
f_print(PC,"AD",robot.ad);
put_enter(PC);
}else if(strcmp(str, "3") == 0){
f2_print(PC,"now_coord",robot.coord.c_x, robot.coord.c_y);
f_print(PC,"deg",robot.angle.degree);
put_enter(PC);
}else if(strcmp(str, "4") == 0){
f_print(PC,"time",count_time(2));
f_print(PC,"dis",robot.waves);
put_enter(PC);
}else if(strcmp(str, "5") == 0){
GPIO_SetBits(ENC_RESET);
//str[0] = 'r';
}else if(strcmp(str, "6") == 0){
f2_print(PC, "under", target_cam.under_x, target_cam.under_y );
f2_print(PC, "over", target_cam.over_x, target_cam.over_y );
put_enter(PC);
}else if(strcmp(str, "7") == 0){
f2_print(PC, "target_cam", (target_cam.x) * cos(D_TO_R(robot.angle.degree))+robot.coord.c_x, (target_cam.y)*sin(D_TO_R(robot.angle.degree))+robot.coord.c_y);
put_enter(PC);
}else if(strcmp(str, "8") == 0){
f2_print(PC, "under", target_cam.under_x, target_cam.under_y);
f2_print(PC, "over", target_cam.over_x, target_cam.over_y );
target_degree = get_target_degree(ROBO_TO_CENTER - robot.coord.c_x, robot.coord.c_y);
f2_print(PC, "target_cam", (target_cam.x) * cos(D_TO_R(target_degree)) + robot.coord.c_x, (target_cam.y) * sin(D_TO_R(target_degree)) + robot.coord.c_y);
put_enter(PC);
}else if(strcmp(str, "9") == 0){
if(robot.sw.start_sw != old_sw ){
f_print(PC,"sw",start_sw);
put_enter(PC);
}
}else if(strcmp(str, "10") == 0){
if(robot.sw.limit_sw != old_limit_sw ){
f_print(PC,"limit_sw",robot.sw.limit_sw);
put_enter(PC);
}
}else if(strcmp(str, "11") == 0){
move(50, 50, 50);
}else if(strcmp(str, "12") == 0){
move(-50, -50, -50);
}else if(strcmp(str, "13") == 0){
move(0, 0, 0);
move_arm(0);
}else if(strcmp(str, "14") == 0){
move_arm(100);
}else if(strcmp(str, "15") == 0){
move_arm(-100);
}
old_limit_sw = robot.sw.start_sw;
old_sw = start_sw;
}
}
void _beep(uint16_t freq, uint16_t time) {
buzzer_start(freq);
sleep(time);
buzzer_stop();
}