From vijaykumar@bravegnu.org Wed Oct 29 11:03:27 2008 From: Vijay Kumar Date: Wed, 29 Oct 2008 08:58:37 +0530 Subject: Staging: poch: Rx control register init To: greg@kroah.com Cc: jayakumar.lkml@gmail.com, alexey.zaytsev@gmail.com, robfitz@273k.net, bdonnette@linagora.com, htejun@gmail.com, Message-ID: <20081029033332.863004618@bravegnu.org> Added Rx control register definition. Flush Rx FIFO on init, and set continuous DMA mode. Signed-off-by: Vijay Kumar Signed-off-by: Greg Kroah-Hartman --- drivers/staging/poch/poch.c | 13 ++++++++++--- 1 file changed, 10 insertions(+), 3 deletions(-) --- 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 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);