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demo driver: support time limit

This commit is contained in:
Bert Vermeulen 2011-01-17 02:20:52 +01:00
parent 574ce4988a
commit b9cc36296b
1 changed files with 19 additions and 4 deletions
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23
hardware/demo/demo.c
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@ -51,15 +51,14 @@ struct databag {
int device_index;
int loop_sleep;
gpointer session_device_id;
GTimer *timer;
};
static GThread *my_thread;
static int thread_running;
static int capabilities[] = {
HWCAP_LOGIC_ANALYZER,
HWCAP_PATTERN_MODE,
HWCAP_LIMIT_SAMPLES,
HWCAP_LIMIT_MSEC,
HWCAP_CONTINUOUS
};
@ -83,8 +82,11 @@ static uint8_t genmode_default[] = {
/* List of struct sigrok_device_instance, maintained by opendev()/closedev(). */
static GSList *device_instances = NULL;
static uint64_t cur_samplerate = 0;
static uint64_t limit_samples = -1;
static uint64_t limit_samples = 0;
static uint64_t limit_msec = 0;
static int default_genmode = GENMODE_DEFAULT;
static GThread *my_thread;
static int thread_running;
static void hw_stop_acquisition(int device_index, gpointer session_device_id);
@ -181,6 +183,10 @@ static int hw_set_configuration(int device_index, int capability, void *value)
tmp_u64 = value;
limit_samples = *tmp_u64;
ret = SIGROK_OK;
} else if (capability == HWCAP_LIMIT_MSEC) {
tmp_u64 = value;
limit_msec = *tmp_u64;
ret = SIGROK_OK;
} else if (capability == HWCAP_PATTERN_MODE) {
stropt = value;
if (!strcmp(stropt, "random")) {
@ -233,6 +239,7 @@ static void thread_func(void *data)
uint8_t buf[BUFSIZE];
uint64_t nb_to_send = 0;
int bytes_written;
unsigned int msec_elapsed;
while (thread_running) {
if (limit_samples)
@ -240,6 +247,12 @@ static void thread_func(void *data)
else
nb_to_send = BUFSIZE; /* Continuous mode */
if (limit_msec) {
msec_elapsed = g_timer_elapsed(mydata->timer, NULL) * 1000;
if (msec_elapsed > limit_msec)
nb_to_send = 0;
}
if (nb_to_send == 0) {
close(mydata->pipe_fds[1]);
thread_running = 0;
@ -317,6 +330,8 @@ static int hw_start_acquisition(int device_index, gpointer session_device_id)
/* Run the demo thread. */
g_thread_init(NULL);
if (limit_msec)
mydata->timer = g_timer_new();
thread_running = 1;
my_thread =
g_thread_create((GThreadFunc)thread_func, mydata, TRUE, NULL);