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stm32: Only declare alternate usart2 on stm32f0

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Also, try to improve the structure of the #if/#else/#endif layout in
serial.c.

Signed-off-by: Kevin O'Connor <kevin@koconnor.net>
This commit is contained in:
Kevin O'Connor
2020-01-23 11:33:11 -05:00
parent c8a93cb3bf
commit aea15250ae
3 changed files with 41 additions and 49 deletions
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32
src/stm32/stm32f0_serial.c
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@@ -13,23 +13,23 @@
// Select the configured serial port
#if CONFIG_SERIAL_PORT == 1
DECL_CONSTANT_STR("RESERVE_PINS_serial", "PA10,PA9");
#define GPIO_Rx GPIO('A', 10)
#define GPIO_Tx GPIO('A', 9)
#define USARTx USART1
#define USARTx_IRQn USART1_IRQn
DECL_CONSTANT_STR("RESERVE_PINS_serial", "PA10,PA9");
#define GPIO_Rx GPIO('A', 10)
#define GPIO_Tx GPIO('A', 9)
#define USARTx USART1
#define USARTx_IRQn USART1_IRQn
#elif CONFIG_SERIAL_PORT == 2
DECL_CONSTANT_STR("RESERVE_PINS_serial", "PA3,PA2");
#define GPIO_Rx GPIO('A', 3)
#define GPIO_Tx GPIO('A', 2)
#define USARTx USART2
#define USARTx_IRQn USART2_IRQn
#elif CONFIG_SERIAL_PORT == 102
DECL_CONSTANT_STR("RESERVE_PINS_serial", "PA15,PA14");
#define GPIO_Rx GPIO('A', 15)
#define GPIO_Tx GPIO('A', 14)
#define USARTx USART2
#define USARTx_IRQn USART2_IRQn
#if STM32_SERIAL_USART2_ALT
DECL_CONSTANT_STR("RESERVE_PINS_serial", "PA15,PA14");
#define GPIO_Rx GPIO('A', 15)
#define GPIO_Tx GPIO('A', 14)
#else
DECL_CONSTANT_STR("RESERVE_PINS_serial", "PA3,PA2");
#define GPIO_Rx GPIO('A', 3)
#define GPIO_Tx GPIO('A', 2)
#endif
#define USARTx USART2
#define USARTx_IRQn USART2_IRQn
#endif
#define CR1_FLAGS (USART_CR1_UE | USART_CR1_RE | USART_CR1_TE \