From: Vijay Kumar B <vijaykumar@xxxxxxxxxxxx>
Adds a parameter that causes the hardware to synthesize Rx values
using a counter.
Signed-off-by: Vijay Kumar B. <vijaykumar@xxxxxxxxxxxx>
Signed-off-by: Greg Kroah-Hartman <gregkh@xxxxxxx>
---
drivers/staging/poch/poch.c | 13 ++++++++++---
1 files changed, 10 insertions(+), 3 deletions(-)
diff --git a/drivers/staging/poch/poch.c b/drivers/staging/poch/poch.c
index 2eb8e3d..1308c7b 100644
--- a/drivers/staging/poch/poch.c
+++ b/drivers/staging/poch/poch.c
@@ -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);
--
1.6.5.5
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