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FMC TDC 1ns 5cha - Software
Commit ae75c926 authored by Federico Vaga's avatar Federico Vaga
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kernel: coalescing 40 tstamp/40ms 

Signed-off-by: Federico Vaga's avatarFederico Vaga <federico.vaga@cern.ch>
parent 8c64f214
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Showing with 5 additions and 4 deletions
kernel/ft-irq.c
View file @ ae75c926
......@@ -206,7 +206,7 @@ static irqreturn_t ft_irq_handler(int irq, void *dev_id)
irq_stat = fmc_readl(ft->fmc, ft->ft_irq_base + TDC_REG_EIC_ISR); /* clear the IRQ */
if (likely(irq_stat & TDC_IRQ_TDC_TSTAMP)) {
if (likely(irq_stat & (TDC_IRQ_TDC_TSTAMP | TDC_IRQ_TDC_TIME))) {
tasklet_schedule(&ft->readout_tasklet);
return IRQ_HANDLED;
}
......@@ -309,11 +309,11 @@ int ft_irq_init(struct fmctdc_dev *ft)
(unsigned long)ft);
/* IRQ coalescing: 40 timestamps or 40 milliseconds */
ft_writel(ft, 1, TDC_REG_IRQ_THRESHOLD);
ft_writel(ft, 0, TDC_REG_IRQ_TIMEOUT);
ft_writel(ft, 40, TDC_REG_IRQ_THRESHOLD);
ft_writel(ft, 40, TDC_REG_IRQ_TIMEOUT);
/* enable timestamp readout IRQ */
fmc_writel(ft->fmc, TDC_IRQ_TDC_TSTAMP,
fmc_writel(ft->fmc, TDC_IRQ_TDC_TSTAMP | TDC_IRQ_TDC_TIME,
ft->ft_irq_base + TDC_REG_EIC_IER);
/* pass the core's base addr as the VIC IRQ vector. */
......
kernel/hw/tdc_regs.h
View file @ ae75c926
......@@ -60,6 +60,7 @@
/* IRQ status/enable bits */
#define TDC_IRQ_TDC_TSTAMP BIT(0)
#define TDC_IRQ_TDC_TIME BIT(1)
#define TDC_EVENT_BUFFER_SIZE 256
#define TDC_EVENT_CHANNEL_MASK 0xF
......
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