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serial: introduce CONFIG_UART_USE_RUNTIME_CONFIGURE

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This kconfig option enables runtime configuration of UART
controllers. This allows application to call uart_configure()
to configure the UART controllers and calling uart_config_get()
to retrieve configuration. If this is disabled, UART controllers
rely on UART driver's initialization function to properly
configure the controller. The main use of this option is mainly
code size reduction.

Fixes #16231

Signed-off-by: Daniel Leung <daniel.leung@intel.com>
This commit is contained in:
Daniel Leung 2021-05-26 12:33:37 -07:00 • committed by Carles Cufí
commit 4e1692f85a
15 changed files with 77 additions and 1 deletions
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8
drivers/serial/uart_lpc11u6x.c
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@ -100,6 +100,7 @@ static void lpc11u6x_uart0_config_baudrate(const struct device *clk_drv,
lpc11u6x_uart0_write_fdr(cfg->uart0, div, mul);
}
#ifdef CONFIG_UART_USE_RUNTIME_CONFIGURE
static int lpc11u6x_uart0_configure(const struct device *dev,
const struct uart_config *cfg)
{
@ -199,6 +200,7 @@ static int lpc11u6x_uart0_config_get(const struct device *dev,
return 0;
}
#endif /* CONFIG_UART_USE_RUNTIME_CONFIGURE */
#ifdef CONFIG_UART_INTERRUPT_DRIVEN
static int lpc11u6x_uart0_fifo_fill(const struct device *dev,
@ -416,8 +418,10 @@ static const struct uart_driver_api uart0_api = {
.poll_in = lpc11u6x_uart0_poll_in,
.poll_out = lpc11u6x_uart0_poll_out,
.err_check = lpc11u6x_uart0_err_check,
#ifdef CONFIG_UART_USE_RUNTIME_CONFIGURE
.configure = lpc11u6x_uart0_configure,
.config_get = lpc11u6x_uart0_config_get,
#endif
#ifdef CONFIG_UART_INTERRUPT_DRIVEN
.fifo_fill = lpc11u6x_uart0_fifo_fill,
.fifo_read = lpc11u6x_uart0_fifo_read,
@ -518,6 +522,7 @@ static void lpc11u6x_uartx_config_baud(const struct lpc11u6x_uartx_config *cfg,
cfg->base->brg = div & LPC11U6X_UARTX_BRG_MASK;
}
#ifdef CONFIG_UART_USE_RUNTIME_CONFIGURE
static int lpc11u6x_uartx_configure(const struct device *dev,
const struct uart_config *cfg)
{
@ -622,6 +627,7 @@ static int lpc11u6x_uartx_config_get(const struct device *dev,
return 0;
}
#endif /* CONFIG_UART_USE_RUNTIME_CONFIGURE */
#ifdef CONFIG_UART_INTERRUPT_DRIVEN
static int lpc11u6x_uartx_fifo_fill(const struct device *dev,
@ -847,8 +853,10 @@ static const struct uart_driver_api uartx_api = {
.poll_in = lpc11u6x_uartx_poll_in,
.poll_out = lpc11u6x_uartx_poll_out,
.err_check = lpc11u6x_uartx_err_check,
#ifdef CONFIG_UART_USE_RUNTIME_CONFIGURE
.configure = lpc11u6x_uartx_configure,
.config_get = lpc11u6x_uartx_config_get,
#endif
#ifdef CONFIG_UART_INTERRUPT_DRIVEN
.fifo_fill = lpc11u6x_uartx_fifo_fill,
.fifo_read = lpc11u6x_uartx_fifo_read,