Messages in this thread Patch in this message | | | From | Greg KH <> | Subject | [PATCH 42/49] Staging: poch: Rx control register init | Date | Wed, 29 Oct 2008 15:40:09 -0700 |
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From: vijaykumar@bravegnu.org <vijaykumar@bravegnu.org>
Added Rx control register definition. Flush Rx FIFO on init, and set continuous DMA mode.
Signed-off-by: Vijay Kumar <vijaykumar@bravegnu.org> Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de> --- 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 b54760f..0a3eca1 100644 --- a/drivers/staging/poch/poch.c +++ b/drivers/staging/poch/poch.c @@ -126,9 +126,11 @@ #define FPGA_INT_TX_ACQ_DONE (0x1 << 1) #define FPGA_INT_RX_ACQ_DONE (0x1) -#define FPGA_RX_ADC_CTL_REG 0x214 -#define FPGA_RX_ADC_CTL_CONT_CAP (0x0) -#define FPGA_RX_ADC_CTL_SNAP_CAP (0x1) +#define FPGA_RX_CTL_REG 0x214 +#define FPGA_RX_CTL_FIFO_FLUSH (0x1 << 9) +#define FPGA_RX_CTL_SYNTH_DATA (0x1 << 8) +#define FPGA_RX_CTL_CONT_CAP (0x0 << 1) +#define FPGA_RX_CTL_SNAP_CAP (0x1 << 1) #define FPGA_RX_ARM_REG 0x21C @@ -819,6 +821,11 @@ static int poch_open(struct inode *inode, struct file *filp) iowrite32(FPGA_TX_CTL_FIFO_FLUSH | FPGA_TX_CTL_OUTPUT_CARDBUS, 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); } atomic_inc(&channel->inited); -- 1.6.0.2
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