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FMC ADC 100M 14b 4cha - Software
Commit 311e86eb authored by Federico Vaga's avatar Federico Vaga
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drv: fire sw trig only is FSM is waiting for triggers 

Signed-off-by: Federico Vaga's avatarFederico Vaga <federico.vaga@cern.ch>
parent a907ade6
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Showing with 13 additions and 1 deletion
kernel/fa-core.c
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......@@ -63,6 +63,9 @@ int32_t fa_temperature_read(struct fa_dev *fa)
int fa_trigger_software(struct fa_dev *fa)
{
struct zio_ti *ti = fa->zdev->cset->ti;
struct zio_attribute *ti_zattr = ti->zattr_set.std_zattr;
unsigned int timeout;
int err;
/* Fire if software trigger is enabled (index 5) */
if (!(ti->zattr_set.ext_zattr[FA100M14B4C_TATTR_SRC].value &
......@@ -77,9 +80,18 @@ int fa_trigger_software(struct fa_dev *fa)
return -EINVAL;
}
/*
* We can do a software trigger if the FSM is not in
* the WAIT trigger status. Wait for it.
* Remember that: timeout is in us, a sample takes 10ns
*/
timeout = ti_zattr[ZIO_ATTR_TRIG_PRE_SAMP].value / 10;
err = fa_fsm_wait_state(fa, FA100M14B4C_STATE_WAIT, timeout);
if (err)
return err;
fa_writel(fa, fa->fa_adc_csr_base, &zfad_regs[ZFAT_SW], 1);
return 0;
return 0;
}
/**
......
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