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Add ability to use multiple UARTs on STM32L0, STM32G0 when IRQ is shared #15221

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merged 4 commits into from
Feb 22, 2022
Merged

Add ability to use multiple UARTs on STM32L0, STM32G0 when IRQ is shared #15221

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8f9b115
Add ability to use multiple UARTs on STM32L0, STM32G0 when IRQ is shared
amcnicoll Feb 5, 2022
f004f09
Consistency fixes for multiple UART support commit
amcnicoll Feb 12, 2022
41275f7
Refactor missing #defs for multiple UART support
amcnicoll Feb 16, 2022
fe698ea
Missed matching #endif
amcnicoll Feb 20, 2022
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92 changes: 35 additions & 57 deletions targets/TARGET_STM/TARGET_STM32G0/serial_device.c
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Original file line number Diff line number Diff line change
Expand Up @@ -19,32 +19,27 @@

#if defined (STM32G030xx) || defined (STM32G050xx)
#define UART_NUM (2)
#define USART_GROUP1_IRQn USART2_IRQn
#elif defined (STM32G031xx) || defined (STM32G041xx) || defined (STM32G051xx) || defined (STM32G061xx)
#define UART_NUM (3)
#define USART_GROUP1_IRQn USART2_IRQn
#define USART_GROUP2_IRQn LPUART1_IRQn
#elif defined (STM32G070xx)
#define UART_NUM (4)
#define USART3_IRQn USART3_4_IRQn
#define USART4_IRQn USART3_4_IRQn
#define USART_GROUP1_IRQn USART2_IRQn
#define USART_GROUP2_IRQn USART3_4_IRQn
#elif defined (STM32G071xx) || defined (STM32G081xx)
#define UART_NUM (5)
#define USART3_IRQn USART3_4_LPUART1_IRQn
#define USART4_IRQn USART3_4_LPUART1_IRQn
#define LPUART1_IRQn USART3_4_LPUART1_IRQn
#define USART_GROUP1_IRQn USART2_IRQn
#define USART_GROUP2_IRQn USART3_4_LPUART1_IRQn
#elif defined (STM32G0B0xx)
#define UART_NUM (6)
#define USART3_IRQn USART3_4_5_6_IRQn
#define USART4_IRQn USART3_4_5_6_IRQn
#define USART5_IRQn USART3_4_5_6_IRQn
#define USART6_IRQn USART3_4_5_6_IRQn
#define USART_GROUP1_IRQn USART2_IRQn
#define USART_GROUP2_IRQn USART3_4_5_6_IRQn
#elif defined (STM32G0B1xx) || defined (STM32G0C1xx)
#define UART_NUM (8)
#define USART2_IRQn USART2_LPUART2_IRQn
#define USART3_IRQn USART3_4_5_6_LPUART1_IRQn
#define USART4_IRQn USART3_4_5_6_LPUART1_IRQn
#define USART5_IRQn USART3_4_5_6_LPUART1_IRQn
#define USART6_IRQn USART3_4_5_6_LPUART1_IRQn
#define LPUART1_IRQn USART3_4_5_6_LPUART1_IRQn
#define LPUART2_IRQn USART2_LPUART2_IRQn
#define USART_GROUP1_IRQn USART2_LPUART2_IRQn
#define USART_GROUP2_IRQn USART3_4_5_6_LPUART1_IRQn
#endif

uint32_t serial_irq_ids[UART_NUM] = {0};
Expand Down Expand Up @@ -93,52 +88,35 @@ static void uart1_irq(void)
}
#endif

#if defined(USART2_BASE)
static void uart2_irq(void)
#if defined (USART_GROUP1_IRQn)
static void uart_group1_irq(void)
{
#if defined(USART2_BASE)
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This line has to be removed ?

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Actually it appeared to be missing an #endif, fixed in fe698ea

uart_irq(UART_2);
}
#endif
#if defined(LPUART2_BASE)
uart_irq(LPUART_2);
#endif
}

#if defined(USART3_BASE)
static void uart3_irq(void)
#if defined(USART_GROUP2_IRQn)
static void uart_group2_irq(void)
{
#if defined(USART3_BASE)
uart_irq(UART_3);
}
#endif

#if defined(USART4_BASE)
static void uart4_irq(void)
{
uart_irq(UART_4);
}
#endif

#if defined(USART5_BASE)
static void uart5_irq(void)
{
uart_irq(UART_5);
}
#endif

#if defined(USART6_BASE)
static void uart6_irq(void)
{
uart_irq(UART_6);
}
#endif

#if defined(LPUART1_BASE)
static void lpuart1_irq(void)
{
uart_irq(LPUART_1);
}
#endif

#if defined(LPUART2_BASE)
static void lpuart2_irq(void)
{
uart_irq(LPUART_2);
}
#endif

Expand Down Expand Up @@ -166,50 +144,50 @@ void serial_irq_set(serial_t *obj, SerialIrq irq, uint32_t enable)

#if defined(USART2_BASE)
if (obj_s->uart == UART_2) {
irq_n = USART2_IRQn;
vector = (uint32_t)&uart2_irq;
irq_n = USART_GROUP1_IRQn;
vector = (uint32_t)&uart_group1_irq;
}
#endif

#if defined(USART3_BASE)
if (obj_s->uart == UART_3) {
irq_n = USART3_IRQn;
vector = (uint32_t)&uart3_irq;
irq_n = USART_GROUP2_IRQn;
vector = (uint32_t)&uart_group2_irq;
}
#endif

#if defined(USART4_BASE)
if (obj_s->uart == UART_4) {
irq_n = USART4_IRQn;
vector = (uint32_t)&uart4_irq;
irq_n = USART_GROUP2_IRQn;
vector = (uint32_t)&uart_group2_irq;
}
#endif

#if defined(USART5_BASE)
if (obj_s->uart == UART_5) {
irq_n = USART5_IRQn;
vector = (uint32_t)&uart5_irq;
irq_n = USART_GROUP2_IRQn;
vector = (uint32_t)&uart_group2_irq;
}
#endif

#if defined(USART6_BASE)
if (obj_s->uart == UART_6) {
irq_n = USART6_IRQn;
vector = (uint32_t)&uart6_irq;
irq_n = USART_GROUP2_IRQn;
vector = (uint32_t)&uart_group2_irq;
}
#endif

#if defined(LPUART1_BASE)
if (obj_s->uart == LPUART_1) {
irq_n = LPUART1_IRQn;
vector = (uint32_t)&lpuart1_irq;
irq_n = USART_GROUP2_IRQn;
vector = (uint32_t)&uart_group2_irq;
}
#endif

#if defined(LPUART2_BASE)
if (obj_s->uart == LPUART_2) {
irq_n = LPUART2_IRQn;
vector = (uint32_t)&lpuart2_irq;
irq_n = USART_GROUP1_IRQn;
vector = (uint32_t)&uart_group1_irq;
}
#endif

Expand Down
16 changes: 7 additions & 9 deletions targets/TARGET_STM/TARGET_STM32L0/serial_device.c
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Original file line number Diff line number Diff line change
Expand Up @@ -79,17 +79,15 @@ static void uart2_irq(void)
}
#endif

#if defined(USART4_BASE)
static void uart4_irq(void)
#if defined(USART4_BASE) || defined(USART5_BASE)
static void uart4_5_irq(void)
{
#if defined(USART4_BASE)
uart_irq(UART_4);
}
#endif

#if defined(USART5_BASE)
static void uart5_irq(void)
{
#if defined(USART4_BASE)
uart_irq(UART_5);
#endif
}
#endif

Expand Down Expand Up @@ -132,14 +130,14 @@ void serial_irq_set(serial_t *obj, SerialIrq irq, uint32_t enable)
#if defined(USART4_BASE)
if (obj_s->uart == UART_4) {
irq_n = USART4_5_IRQn;
vector = (uint32_t)&uart4_irq;
vector = (uint32_t)&uart4_5_irq;
}
#endif

#if defined(USART5_BASE)
if (obj_s->uart == UART_5) {
irq_n = USART4_5_IRQn;
vector = (uint32_t)&uart5_irq;
vector = (uint32_t)&uart4_5_irq;
}
#endif

Expand Down