int main() {
int x = 1;
printf("1. divide by two recursively: %d\n", is_power_two(x));
printf("2. count number of set bits: %d\n", count_set_bits(x));
printf("3. subtract by one: %d\n", subtract_by_one(x));
return 0;
}
/*
* traverse
*
* Starts the post-traverse the backup hierarchy. Checks
* for exceptional cases, like aborting operation and if
* asked, report detailed information after traversing.
*
* Parameters:
* session (input) - pointer to the session
* nlp (input) - pointer to the nlp structure
* ftp (input) - pointer to the traverse parameters
*
* Returns:
* 0: on success
* != 0: otherwise
*/
int
traverse(ndmpd_session_t *session, ndmp_lbr_params_t *nlp,
fs_traverse_t *ftp)
{
int rv;
time_t s, e;
if (!session || !nlp || !ftp) {
syslog(LOG_ERR, "Invalid argument in traverse");
return (-1);
}
syslog(LOG_DEBUG, "Processing directories of \"%s\"",
nlp->nlp_backup_path);
(void) time(&s);
if (traverse_post(ftp) != 0) {
rv = -1;
if (!session->ns_data.dd_abort && !NLP_ISSET(nlp,
NLPF_ABORTED)) {
syslog(LOG_DEBUG,
"Traversing backup path hierarchy \"%s\"",
nlp->nlp_backup_path);
}
} else {
(void) dbm_setone(nlp->nlp_bkmap, (u_longlong_t)ROOT_INODE);
rv = 0;
(void) time(&e);
syslog(LOG_DEBUG,
"\"%s\" traversed in %u sec", nlp->nlp_backup_path,
(uint_t)(e-s));
count_set_bits(nlp->nlp_backup_path, nlp->nlp_bkmap);
}
return (rv);
}
static void test_count_set_bits_with_zero(void) {
unsigned int number = 0;
unsigned int count = count_set_bits(number);
test_assert(count == 0);
}
static void test_count_set_bits_with_twenty(void) {
unsigned int number = 20;
unsigned int count = count_set_bits(number);
test_assert(count == 2);
}
static void test_count_set_bits_with_five(void) {
unsigned int number = 5;
unsigned int count = count_set_bits(number);
test_assert(count == 2);
}
static void test_count_set_bits_with_four(void) {
unsigned int number = 4;
unsigned int count = count_set_bits(number);
test_assert(count == 1);
}
int main(void)
{
u32 cmd, data_channels, delay;
u32 xStatus;
u8 iop_pins[19];
int i, log_capacity;
u32 xadc_raw_value;
float xadc_voltage;
// Initialize PMOD and timers
arduino_init(0,0,0,0);
// SysMon Initialize
SysMonConfigPtr = XSysMon_LookupConfig(SYSMON_DEVICE_ID);
if(SysMonConfigPtr == NULL)
xil_printf("SysMon LookupConfig failed.\n\r");
xStatus = XSysMon_CfgInitialize(SysMonInstPtr, SysMonConfigPtr,
SysMonConfigPtr->BaseAddress);
if(XST_SUCCESS != xStatus)
xil_printf("SysMon CfgInitialize failed\r\n");
// Clear the old status
XSysMon_GetStatus(SysMonInstPtr);
// Initialize the default switch
config_arduino_switch(A_GPIO, A_GPIO, A_GPIO, A_GPIO, A_GPIO, A_GPIO,
D_GPIO, D_GPIO, D_GPIO, D_GPIO, D_GPIO,
D_GPIO, D_GPIO, D_GPIO, D_GPIO,
D_GPIO, D_GPIO, D_GPIO, D_GPIO);
while(1){
// wait and store valid command
while((MAILBOX_CMD_ADDR & 0x1)==0);
cmd = (MAILBOX_CMD_ADDR & 0xF);
switch(cmd){
case CONFIG_IOP_SWITCH:
// Assign default pin configurations
iop_pins[0] = MAILBOX_DATA(0);
iop_pins[1] = MAILBOX_DATA(1);
iop_pins[2] = MAILBOX_DATA(2);
iop_pins[3] = MAILBOX_DATA(3);
iop_pins[4] = MAILBOX_DATA(4);
iop_pins[5] = MAILBOX_DATA(5);
iop_pins[6] = D_GPIO;
iop_pins[7] = D_GPIO;
iop_pins[8] = D_GPIO;
iop_pins[9] = D_GPIO;
iop_pins[10] = D_GPIO;
iop_pins[11] = D_GPIO;
iop_pins[12] = D_GPIO;
iop_pins[13] = D_GPIO;
iop_pins[14] = D_GPIO;
iop_pins[15] = D_GPIO;
iop_pins[16] = D_GPIO;
iop_pins[17] = D_GPIO;
iop_pins[18] = D_GPIO;
config_arduino_switch(iop_pins[0], iop_pins[1], iop_pins[2],
iop_pins[3], iop_pins[4], iop_pins[5],
iop_pins[6], iop_pins[7],
iop_pins[8], iop_pins[9],
iop_pins[10], iop_pins[11],
iop_pins[12], iop_pins[13],
iop_pins[14], iop_pins[15],
iop_pins[16], iop_pins[17],
iop_pins[18]);
MAILBOX_CMD_ADDR = 0x0;
break;
case GET_RAW_DATA:
i=0;
// Wait for the conversion complete
while ((XSysMon_GetStatus(SysMonInstPtr) &
XSM_SR_EOS_MASK) != XSM_SR_EOS_MASK);
data_channels = MAILBOX_CMD_ADDR >> 8;
if(data_channels & 0x1)
MAILBOX_DATA(i++) = XSysMon_GetAdcData(SysMonInstPtr,
XSM_CH_AUX_MIN+1);
if(data_channels & 0x2)
MAILBOX_DATA(i++) = XSysMon_GetAdcData(SysMonInstPtr,
XSM_CH_AUX_MIN+9);
if(data_channels & 0x4)
MAILBOX_DATA(i++) = XSysMon_GetAdcData(SysMonInstPtr,
XSM_CH_AUX_MIN+6);
if(data_channels & 0x8)
MAILBOX_DATA(i++) = XSysMon_GetAdcData(SysMonInstPtr,
XSM_CH_AUX_MIN+15);
if(data_channels & 0x10)
MAILBOX_DATA(i++) = XSysMon_GetAdcData(SysMonInstPtr,
XSM_CH_AUX_MIN+5);
if(data_channels & 0x20)
MAILBOX_DATA(i++) = XSysMon_GetAdcData(SysMonInstPtr,
XSM_CH_AUX_MIN+13);
MAILBOX_CMD_ADDR = 0x0;
break;
case GET_VOLTAGE:
i=0;
// Wait for the conversion complete
while ((XSysMon_GetStatus(SysMonInstPtr) &
XSM_SR_EOS_MASK) != XSM_SR_EOS_MASK);
data_channels = MAILBOX_CMD_ADDR >> 8;
if(data_channels & 0x1)
MAILBOX_DATA_FLOAT(i++) = (float)(XSysMon_GetAdcData(
SysMonInstPtr,XSM_CH_AUX_MIN+1)*V_REF/65536);
if(data_channels & 0x2)
MAILBOX_DATA_FLOAT(i++) = (float)(XSysMon_GetAdcData(
SysMonInstPtr,XSM_CH_AUX_MIN+9)*V_REF/65536);
if(data_channels & 0x4)
MAILBOX_DATA_FLOAT(i++) = (float)(XSysMon_GetAdcData(
SysMonInstPtr,XSM_CH_AUX_MIN+6)*V_REF/65536);
if(data_channels & 0x8)
MAILBOX_DATA_FLOAT(i++) = (float)(XSysMon_GetAdcData(
SysMonInstPtr,XSM_CH_AUX_MIN+15)*V_REF/65536);
if(data_channels & 0x10)
MAILBOX_DATA_FLOAT(i++) = (float)(XSysMon_GetAdcData(
SysMonInstPtr,XSM_CH_AUX_MIN+5)*V_REF/65536);
if(data_channels & 0x20)
MAILBOX_DATA_FLOAT(i++) = (float)(XSysMon_GetAdcData(
SysMonInstPtr,XSM_CH_AUX_MIN+13)*V_REF/65536);
MAILBOX_CMD_ADDR = 0x0;
break;
case READ_AND_LOG_RAW:
// initialize logging variables, reset cmd
delay = MAILBOX_DATA(1);
// get channels to be sampled
data_channels = MAILBOX_CMD_ADDR >> 8;
// allocate 1000 samples per channel
log_capacity = 4000 / LOG_INT_SIZE *
count_set_bits(data_channels);
cb_init(&arduino_log, LOG_BASE_ADDRESS,
log_capacity, LOG_INT_SIZE);
while(MAILBOX_CMD_ADDR != RESET_ANALOG){
// wait for sample conversion
while ((XSysMon_GetStatus(SysMonInstPtr) &
XSM_SR_EOS_MASK) != XSM_SR_EOS_MASK);
if(data_channels & 0x1) {
xadc_raw_value = XSysMon_GetAdcData(SysMonInstPtr,
XSM_CH_AUX_MIN+1);
cb_push_back(&arduino_log, &xadc_raw_value);
}
if(data_channels & 0x2) {
xadc_raw_value = XSysMon_GetAdcData(SysMonInstPtr,
XSM_CH_AUX_MIN+9);
cb_push_back(&arduino_log, &xadc_raw_value);
}
if(data_channels & 0x4) {
xadc_raw_value = XSysMon_GetAdcData(SysMonInstPtr,
XSM_CH_AUX_MIN+6);
cb_push_back(&arduino_log, &xadc_raw_value);
}
if(data_channels & 0x8) {
xadc_raw_value = XSysMon_GetAdcData(SysMonInstPtr,
XSM_CH_AUX_MIN+15);
cb_push_back(&arduino_log, &xadc_raw_value);
}
if(data_channels & 0x10) {
xadc_raw_value = XSysMon_GetAdcData(SysMonInstPtr,
XSM_CH_AUX_MIN+5);
cb_push_back(&arduino_log, &xadc_raw_value);
}
if(data_channels & 0x20) {
xadc_raw_value = XSysMon_GetAdcData(SysMonInstPtr,
XSM_CH_AUX_MIN+13);
cb_push_back(&arduino_log, &xadc_raw_value);
}
delay_ms(delay);
}
MAILBOX_CMD_ADDR = 0x0;
break;
case READ_AND_LOG_FLOAT:
// initialize logging variables, reset cmd
delay = MAILBOX_DATA(1);
// get channels to be sampled
data_channels = MAILBOX_CMD_ADDR >> 8;
// allocate 1000 samples per channel
log_capacity = 4000 / LOG_FLOAT_SIZE *
count_set_bits(data_channels);
cb_init(&arduino_log, LOG_BASE_ADDRESS,
log_capacity, LOG_FLOAT_SIZE);
while(MAILBOX_CMD_ADDR != RESET_ANALOG){
// wait for sample conversion
while ((XSysMon_GetStatus(SysMonInstPtr) &
XSM_SR_EOS_MASK) != XSM_SR_EOS_MASK);
if(data_channels & 0x1) {
xadc_voltage = (float)(XSysMon_GetAdcData(
SysMonInstPtr,XSM_CH_AUX_MIN+1)*V_REF/65536);
cb_push_back_float(&arduino_log, &xadc_voltage);
}
if(data_channels & 0x2) {
xadc_voltage = (float)(XSysMon_GetAdcData(
SysMonInstPtr,XSM_CH_AUX_MIN+9)*V_REF/65536);
cb_push_back_float(&arduino_log, &xadc_voltage);
}
if(data_channels & 0x4) {
xadc_voltage = (float)(XSysMon_GetAdcData(
SysMonInstPtr,XSM_CH_AUX_MIN+6)*V_REF/65536);
cb_push_back_float(&arduino_log, &xadc_voltage);
}
if(data_channels & 0x8) {
xadc_voltage = (float)(XSysMon_GetAdcData(
SysMonInstPtr,XSM_CH_AUX_MIN+15)*V_REF/65536);
cb_push_back_float(&arduino_log, &xadc_voltage);
}
if(data_channels & 0x10) {
xadc_voltage = (float)(XSysMon_GetAdcData(
SysMonInstPtr,XSM_CH_AUX_MIN+5)*V_REF/65536);
cb_push_back_float(&arduino_log, &xadc_voltage);
}
if(data_channels & 0x20) {
xadc_voltage = (float)(XSysMon_GetAdcData(
SysMonInstPtr,XSM_CH_AUX_MIN+13)*V_REF/65536);
cb_push_back_float(&arduino_log, &xadc_voltage);
}
delay_ms(delay);
}
MAILBOX_CMD_ADDR = 0x0;
break;
case RESET_ANALOG:
// SysMon Initialize
SysMonConfigPtr = XSysMon_LookupConfig(SYSMON_DEVICE_ID);
if(SysMonConfigPtr == NULL)
xil_printf("SysMon LookupConfig failed.\n\r");
xStatus = XSysMon_CfgInitialize(SysMonInstPtr,
SysMonConfigPtr, SysMonConfigPtr->BaseAddress);
if(XST_SUCCESS != xStatus)
xil_printf("SysMon CfgInitialize failed.\r\n");
// Clear the old status
XSysMon_GetStatus(SysMonInstPtr);
MAILBOX_CMD_ADDR = 0x0;
break;
default:
MAILBOX_CMD_ADDR = 0x0;
break;
}
}
return 0;
}
