Staging: poch: Parameter to enable synthetic counter (16fbf4cb) · Commits · 戴 / test

drivers/staging/poch/poch.c

+10 −3

Original line number	Diff line number	Diff line
		@@ -245,6 +245,11 @@ struct poch_dev {
		struct device *dev;
		};

		static int synth_rx;
		module_param(synth_rx, bool, 0600);
		MODULE_PARM_DESC(synth_rx,
		"Synthesize received values using a counter. Default: No");

		static dev_t poch_first_dev;
		static struct class *poch_cls;
		static DEFINE_IDR(poch_ids);
		@@ -827,9 +832,11 @@ static int poch_open(struct inode inode, struct file filp)
		fpga + FPGA_TX_CTL_REG);
		} else {
		/* Flush RX FIFO and output data to cardbus. */
		iowrite32(FPGA_RX_CTL_CONT_CAP
		\| FPGA_RX_CTL_FIFO_FLUSH,
		fpga + FPGA_RX_CTL_REG);
		u32 ctl_val = FPGA_RX_CTL_CONT_CAP \| FPGA_RX_CTL_FIFO_FLUSH;
		if (synth_rx)
		ctl_val \|= FPGA_RX_CTL_SYNTH_DATA;

		iowrite32(ctl_val, fpga + FPGA_RX_CTL_REG);
		}

		atomic_inc(&channel->inited);