static int kona_tick_set_next_event(unsigned long cycles,
struct clock_event_device *evt)
{
struct kona_td *kona_td;
kona_td = (struct kona_td *)&__get_cpu_var(percpu_kona_td);
if (likely(cpu_online(smp_processor_id())))
kona_timer_set_match_start(kona_td->kona_timer, cycles);
return 0;
}
static int kona_tick_set_next_event(unsigned long cycles,
struct clock_event_device *evt)
{
struct kona_td *kona_td;
int ret = -1;
kona_td = (struct kona_td *)&__get_cpu_var(percpu_kona_td);
ret = kona_timer_set_match_start(kona_td->kona_timer, cycles);
return ret;
}
static ssize_t
kona_timer_start_test(struct device *dev, struct device_attribute *attr,
const char *buf, size_t n)
{
unsigned int ch_num, mode, count;
char name[255];
if (sscanf(buf, "%s %d %d %d", name, &ch_num, &mode, &count) == 4) {
pr_info("channel_num:%d mode(0-periodic 1-oneshot):%d "
"count:%d\n", ch_num, mode, count);
if (kt == NULL)
kt = kona_timer_request(name, ch_num);
if (kt == NULL) {
pr_err("kona_timer_request returned error\n");
goto out;
}
cfg.mode = mode;
cfg.arg = kt;
cfg.cb = timer_callback;
cfg.reload = count;
if (kona_timer_config(kt, &cfg) < 0) {
pr_err("kona_timer_config returned error\n");
goto out;
}
if (kona_timer_set_match_start(kt, count) < 0) {
pr_err("kona_timer_set_match_start returned error\n");
goto out;
}
pr_info("Timer test started\n");
out:
return n;
}
pr_info("\nusage: echo [name (aon-timer/slave-timer)] "
"[channel num (0-3)] [mode(0-periodic"
"1-oneshot)] [count value] > /sys/bcm/timer_start_test\n");
return -EINVAL;
}
static int gptimer_set_next_event(unsigned long clc,
struct clock_event_device *unused)
{
/* gptimer (0) is disabled by the timer interrupt already
*so, here we reload the next event value and re-enable
*the timer
*
* This way, we are potentially losing the time between
*timer-interrupt->set_next_event. CPU local timers, when
*they come in should get rid of skew
*/
#ifdef CONFIG_GP_TIMER_CLOCK_OFF_FIX
{
volatile unsigned int i;
kona_timer_disable_and_clear(gpt_evt);
for (i = 0; i < 1800; i++) {
}
}
#endif
kona_timer_set_match_start(gpt_evt, clc);
return 0;
}
static int kona_timer_unit_test_program(struct kona_timer *lkt,
enum timer_mode mode,
unsigned long count)
{
struct timer_ch_cfg lcfg;
lcfg.mode = mode;
lcfg.arg = lkt;
lcfg.cb = timer_callback;
if (kona_timer_config(lkt, &lcfg) < 0) {
pr_err("kona_timer_config returned error.\n");
goto error;
}
if (kona_timer_set_match_start(lkt, count) < 0) {
pr_err("kona_timer_set_match_start returned error.\n");
goto error;
}
return 0;
error:
return -1;
}
