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stm32l4 serial:Add SINGLEWIRE PUSHPULL option

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David Sidrane 2020-08-04 06:41:27 -07:00 • committed by Xiang Xiao
parent 48c81522f9
commit 579fbe2e52
1 changed files with 3 additions and 1 deletions
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4
arch/arm/src/stm32l4/stm32l4_serial.c
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@ -1873,7 +1873,9 @@ static int stm32l4serial_ioctl(FAR struct file *filep, int cmd,
if ((arg & SER_SINGLEWIRE_ENABLED) != 0)
{
uint32_t gpio_val = GPIO_OPENDRAIN;
uint32_t gpio_val = (arg & SER_SINGLEWIRE_PUSHPULL) ==
SER_SINGLEWIRE_PUSHPULL ?
GPIO_PUSHPULL : GPIO_OPENDRAIN;
gpio_val |=
(arg & SER_SINGLEWIRE_PULL_MASK) == SER_SINGLEWIRE_PULLUP ?
GPIO_PULLUP : GPIO_FLOAT;