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sys/stdio_uart: implementation of stdio_available

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This commit is contained in:
Gunar Schorcht 2021-12-25 13:09:45 +01:00
parent a71dec81a2
commit 0ffad24112
3 changed files with 9 additions and 0 deletions
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1
makefiles/stdio.inc.mk
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@ -37,6 +37,7 @@ endif
ifneq (,$(filter stdio_uart_rx,$(USEMODULE))) ifneq (,$(filter stdio_uart_rx,$(USEMODULE)))
USEMODULE += isrpipe USEMODULE += isrpipe
USEMODULE += stdio_uart USEMODULE += stdio_uart
USEMODULE += stdio_available
endif endif
ifneq (,$(filter stdio_uart,$(USEMODULE))) ifneq (,$(filter stdio_uart,$(USEMODULE)))

1
sys/Kconfig.stdio
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@ -49,6 +49,7 @@ config MODULE_STDIO_UART_RX
bool bool
depends on MODULE_STDIO_UART depends on MODULE_STDIO_UART
select MODULE_ISRPIPE select MODULE_ISRPIPE
select MODULE_STDIO_AVAILABLE
default y if MODULE_STDIN default y if MODULE_STDIN
help help
Reception when using UART-based STDIO needs to be enabled. Reception when using UART-based STDIO needs to be enabled.

7
sys/stdio_uart/stdio_uart.c
View File

@ -67,6 +67,13 @@ void stdio_init(void)
#endif #endif
} }
#if IS_USED(MODULE_STDIO_AVAILABLE)
int stdio_available(void)
{
return tsrb_avail(&stdio_uart_isrpipe.tsrb);
}
#endif
ssize_t stdio_read(void* buffer, size_t count) ssize_t stdio_read(void* buffer, size_t count)
{ {
#ifdef MODULE_STDIO_UART_RX #ifdef MODULE_STDIO_UART_RX