diff options
| author | Sean Young <sean@mess.org> | 2018-01-27 17:05:37 +0300 |
|---|---|---|
| committer | Mauro Carvalho Chehab <mchehab@s-opensource.com> | 2018-02-14 21:36:00 +0300 |
| commit | 069edf8a6a42be39b4ec04e56ab7bd18634dc12e (patch) | |
| tree | d4b1c78382fd1bcdd94c431aeb67162b27ba77f6 /drivers/media/rc/ir-spi.c | |
| parent | de5b22d98705a4c103492e36a5220faca5a2d0a0 (diff) | |
| download | linux-069edf8a6a42be39b4ec04e56ab7bd18634dc12e.tar.xz | |
media: rc: ir-spi: fix duty cycle
Calculate the pulse rather than having a few preset values.
Signed-off-by: Sean Young <sean@mess.org>
Acked-by: Andi Shyti <andi.shyti@samsung.com>
Signed-off-by: Mauro Carvalho Chehab <mchehab@s-opensource.com>
Diffstat (limited to 'drivers/media/rc/ir-spi.c')
| -rw-r--r-- | drivers/media/rc/ir-spi.c | 24 |
1 files changed, 2 insertions, 22 deletions
diff --git a/drivers/media/rc/ir-spi.c b/drivers/media/rc/ir-spi.c index a32a84ae2d0b..7163d5ce2e64 100644 --- a/drivers/media/rc/ir-spi.c +++ b/drivers/media/rc/ir-spi.c @@ -15,21 +15,11 @@ #define IR_SPI_DRIVER_NAME "ir-spi" -/* pulse value for different duty cycles */ -#define IR_SPI_PULSE_DC_50 0xff00 -#define IR_SPI_PULSE_DC_60 0xfc00 -#define IR_SPI_PULSE_DC_70 0xf800 -#define IR_SPI_PULSE_DC_75 0xf000 -#define IR_SPI_PULSE_DC_80 0xc000 -#define IR_SPI_PULSE_DC_90 0x8000 - #define IR_SPI_DEFAULT_FREQUENCY 38000 -#define IR_SPI_BIT_PER_WORD 8 #define IR_SPI_MAX_BUFSIZE 4096 struct ir_spi_data { u32 freq; - u8 duty_cycle; bool negated; u16 tx_buf[IR_SPI_MAX_BUFSIZE]; @@ -105,19 +95,9 @@ static int ir_spi_set_tx_carrier(struct rc_dev *dev, u32 carrier) static int ir_spi_set_duty_cycle(struct rc_dev *dev, u32 duty_cycle) { struct ir_spi_data *idata = dev->priv; + int bits = (duty_cycle * 15) / 100; - if (duty_cycle >= 90) - idata->pulse = IR_SPI_PULSE_DC_90; - else if (duty_cycle >= 80) - idata->pulse = IR_SPI_PULSE_DC_80; - else if (duty_cycle >= 75) - idata->pulse = IR_SPI_PULSE_DC_75; - else if (duty_cycle >= 70) - idata->pulse = IR_SPI_PULSE_DC_70; - else if (duty_cycle >= 60) - idata->pulse = IR_SPI_PULSE_DC_60; - else - idata->pulse = IR_SPI_PULSE_DC_50; + idata->pulse = GENMASK(bits, 0); if (idata->negated) { idata->pulse = ~idata->pulse; |