serial: Change poll_out signature
poll_out function was returning the character that was sent. It happens that it is always constant and the return of this functions is never tested. Changing it to be a void function. MISRA-C rule 17.7 Signed-off-by: Flavio Ceolin <flavio.ceolin@intel.com>
This commit is contained in:
parent
2b1d54e897
commit
98d03266f1
30 changed files with 37 additions and 106 deletions
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@ -50,7 +50,7 @@ static int leuart_gecko_poll_in(struct device *dev, unsigned char *c)
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return -1;
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}
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static unsigned char leuart_gecko_poll_out(struct device *dev, unsigned char c)
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static void leuart_gecko_poll_out(struct device *dev, unsigned char c)
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{
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LEUART_TypeDef *base = DEV_BASE(dev);
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@ -58,8 +58,6 @@ static unsigned char leuart_gecko_poll_out(struct device *dev, unsigned char c)
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* and and waits for the bus to be free to transmit.
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*/
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LEUART_Tx(base, c);
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return c;
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}
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static int leuart_gecko_err_check(struct device *dev)
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@ -24,7 +24,7 @@ extern int altera_avalon_jtag_uart_read(altera_avalon_jtag_uart_state *sp,
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extern int altera_avalon_jtag_uart_write(altera_avalon_jtag_uart_state *sp,
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const char *ptr, int count, int flags);
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static unsigned char uart_altera_jtag_poll_out(struct device *dev,
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static void uart_altera_jtag_poll_out(struct device *dev,
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unsigned char c)
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{
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const struct uart_device_config *config;
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@ -34,8 +34,6 @@ static unsigned char uart_altera_jtag_poll_out(struct device *dev,
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ustate.base = JTAG_UART_0_BASE;
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altera_avalon_jtag_uart_write(&ustate, &c, 1, 0);
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return c;
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}
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static int uart_altera_jtag_init(struct device *dev)
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@ -102,13 +102,11 @@ static int uart_cc32xx_poll_in(struct device *dev, unsigned char *c)
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return 0;
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}
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static unsigned char uart_cc32xx_poll_out(struct device *dev, unsigned char c)
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static void uart_cc32xx_poll_out(struct device *dev, unsigned char c)
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{
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const struct uart_device_config *config = DEV_CFG(dev);
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MAP_UARTCharPut((unsigned long)config->base, c);
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return c;
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}
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static int uart_cc32xx_err_check(struct device *dev)
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@ -185,10 +185,8 @@ static int uart_cmsdk_apb_poll_in(struct device *dev, unsigned char *c)
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*
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* @param dev UART device struct
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* @param c Character to send
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*
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* @return Sent character
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*/
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static unsigned char uart_cmsdk_apb_poll_out(struct device *dev,
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static void uart_cmsdk_apb_poll_out(struct device *dev,
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unsigned char c)
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{
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volatile struct uart_cmsdk_apb *uart = UART_STRUCT(dev);
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@ -200,7 +198,6 @@ static unsigned char uart_cmsdk_apb_poll_out(struct device *dev,
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/* Send a character */
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uart->data = (u32_t)c;
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return c;
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}
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#ifdef CONFIG_UART_INTERRUPT_DRIVEN
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@ -11,14 +11,12 @@
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#include <uart.h>
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#include <errno.h>
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static unsigned char esp32_uart_tx(struct device *dev,
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static void esp32_uart_tx(struct device *dev,
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unsigned char c)
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{
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ARG_UNUSED(dev);
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esp32_rom_uart_tx_one_char(c);
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return c;
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}
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static int esp32_uart_rx(struct device *dev, unsigned char *p_char)
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@ -43,13 +43,11 @@ static int uart_gecko_poll_in(struct device *dev, unsigned char *c)
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return -1;
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}
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static unsigned char uart_gecko_poll_out(struct device *dev, unsigned char c)
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static void uart_gecko_poll_out(struct device *dev, unsigned char c)
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{
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const struct uart_gecko_config *config = dev->config->config_info;
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USART_Tx(config->base, c);
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return c;
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}
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static int uart_gecko_err_check(struct device *dev)
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@ -33,7 +33,9 @@ Z_SYSCALL_HANDLER(uart_poll_in, dev, p_char)
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Z_SYSCALL_HANDLER(uart_poll_out, dev, out_char)
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{
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Z_OOPS(Z_SYSCALL_DRIVER_UART(dev, poll_out));
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return _impl_uart_poll_out((struct device *)dev, out_char);
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_impl_uart_poll_out((struct device *)dev, out_char);
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return 0;
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}
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#ifdef CONFIG_UART_INTERRUPT_DRIVEN
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@ -94,15 +94,13 @@ static int uart_imx_init(struct device *dev)
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return 0;
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}
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static unsigned char uart_imx_poll_out(struct device *dev, unsigned char c)
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static void uart_imx_poll_out(struct device *dev, unsigned char c)
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{
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UART_Type *uart = UART_STRUCT(dev);
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while (!UART_GetStatusFlag(uart, uartStatusTxReady))
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;
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UART_Putchar(uart, c);
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return c;
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}
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static int uart_imx_poll_in(struct device *dev, unsigned char *c)
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@ -42,7 +42,7 @@ static int uart_mcux_poll_in(struct device *dev, unsigned char *c)
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return ret;
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}
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static unsigned char uart_mcux_poll_out(struct device *dev, unsigned char c)
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static void uart_mcux_poll_out(struct device *dev, unsigned char c)
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{
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const struct uart_mcux_config *config = dev->config->config_info;
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@ -50,8 +50,6 @@ static unsigned char uart_mcux_poll_out(struct device *dev, unsigned char c)
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;
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UART_WriteByte(config->base, c);
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return c;
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}
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static int uart_mcux_err_check(struct device *dev)
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@ -42,7 +42,7 @@ static int mcux_lpsci_poll_in(struct device *dev, unsigned char *c)
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return ret;
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}
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static unsigned char mcux_lpsci_poll_out(struct device *dev, unsigned char c)
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static void mcux_lpsci_poll_out(struct device *dev, unsigned char c)
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{
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const struct mcux_lpsci_config *config = dev->config->config_info;
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@ -51,8 +51,6 @@ static unsigned char mcux_lpsci_poll_out(struct device *dev, unsigned char c)
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;
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LPSCI_WriteByte(config->base, c);
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return c;
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}
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static int mcux_lpsci_err_check(struct device *dev)
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@ -42,7 +42,7 @@ static int mcux_lpuart_poll_in(struct device *dev, unsigned char *c)
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return ret;
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}
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static unsigned char mcux_lpuart_poll_out(struct device *dev, unsigned char c)
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static void mcux_lpuart_poll_out(struct device *dev, unsigned char c)
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{
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const struct mcux_lpuart_config *config = dev->config->config_info;
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@ -51,8 +51,6 @@ static unsigned char mcux_lpuart_poll_out(struct device *dev, unsigned char c)
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;
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LPUART_WriteByte(config->base, c);
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return c;
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}
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static int mcux_lpuart_err_check(struct device *dev)
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@ -150,7 +150,7 @@ struct uart_miv_data {
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#define DEV_DATA(dev) \
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((struct uart_miv_data * const)(dev)->driver_data)
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static unsigned char uart_miv_poll_out(struct device *dev,
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static void uart_miv_poll_out(struct device *dev,
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unsigned char c)
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{
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volatile struct uart_miv_regs_t *uart = DEV_UART(dev);
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@ -159,8 +159,6 @@ static unsigned char uart_miv_poll_out(struct device *dev,
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;
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uart->tx = c;
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return c;
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}
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static int uart_miv_poll_in(struct device *dev, unsigned char *c)
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@ -163,14 +163,12 @@ static int uart_msp432p4xx_poll_in(struct device *dev, unsigned char *c)
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return 0;
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}
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static unsigned char uart_msp432p4xx_poll_out(struct device *dev,
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unsigned char c)
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static void uart_msp432p4xx_poll_out(struct device *dev,
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unsigned char c)
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{
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const struct uart_device_config *config = DEV_CFG(dev);
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MAP_UART_transmitData((unsigned long)config->base, c);
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return c;
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}
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#ifdef CONFIG_UART_INTERRUPT_DRIVEN
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@ -34,7 +34,7 @@
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static int np_uart_stdin_poll_in(struct device *dev, unsigned char *p_char);
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static int np_uart_tty_poll_in(struct device *dev, unsigned char *p_char);
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static unsigned char np_uart_poll_out(struct device *dev,
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static void np_uart_poll_out(struct device *dev,
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unsigned char out_char);
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static bool auto_attach;
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* @param dev UART device struct
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* @param out_char Character to send.
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*/
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static unsigned char np_uart_poll_out(struct device *dev,
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static void np_uart_poll_out(struct device *dev,
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unsigned char out_char)
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{
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int ret;
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if (ret != 1) {
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WARN("%s: a character could not be output\n", __func__);
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}
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return out_char;
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}
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/**
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@ -187,10 +187,8 @@ static int uart_nrfx_poll_in(struct device *dev, unsigned char *c)
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*
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* @param dev UART device struct
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* @param c Character to send
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*
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* @return Sent character
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*/
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static unsigned char uart_nrfx_poll_out(struct device *dev,
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static void uart_nrfx_poll_out(struct device *dev,
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unsigned char c)
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{
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/* The UART API dictates that poll_out should wait for the transmitter
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* power.
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*/
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nrf_uart_task_trigger(uart0_addr, NRF_UART_TASK_STOPTX);
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return c;
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}
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/** Console I/O function */
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@ -278,10 +278,8 @@ static int uarte_nrfx_poll_in(struct device *dev, unsigned char *c)
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*
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* @param dev UARTE device struct
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* @param c Character to send
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*
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* @return Sent character
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*/
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static unsigned char uarte_nrfx_poll_out(struct device *dev,
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static void uarte_nrfx_poll_out(struct device *dev,
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unsigned char c)
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{
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NRF_UARTE_Type *uarte = get_uarte_instance(dev);
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@ -318,8 +316,6 @@ static unsigned char uarte_nrfx_poll_out(struct device *dev,
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* when TX is stopped.
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*/
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nrf_uarte_task_trigger(uarte, NRF_UARTE_TASK_STOPTX);
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return c;
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}
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static int uarte_nrfx_err_check(struct device *dev)
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@ -395,10 +395,8 @@ static int uart_ns16550_poll_in(struct device *dev, unsigned char *c)
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*
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* @param dev UART device struct
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* @param c Character to send
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*
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* @return Sent character
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*/
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static unsigned char uart_ns16550_poll_out(struct device *dev,
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static void uart_ns16550_poll_out(struct device *dev,
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unsigned char c)
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{
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/* wait for transmitter to ready to accept a character */
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@ -406,8 +404,6 @@ static unsigned char uart_ns16550_poll_out(struct device *dev,
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;
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OUTBYTE(THR(dev), c);
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return c;
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}
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/**
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@ -87,7 +87,7 @@ static int uart_nsim_init(struct device *dev)
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* @param dev UART device struct
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* @param c character to output
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*/
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unsigned char uart_nsim_poll_out(struct device *dev, unsigned char c)
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static void uart_nsim_poll_out(struct device *dev, unsigned char c)
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{
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u32_t regs = DEV_CFG(dev)->regs;
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/* wait for transmitter to ready to accept a character */
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;
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UART_SET_DATA(regs, c);
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return c;
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}
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static int uart_nsim_poll_in(struct device *dev, unsigned char *c)
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@ -118,14 +118,12 @@ static int uart_psoc6_poll_in(struct device *dev, unsigned char *c)
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return ((rec == CY_SCB_UART_RX_NO_DATA) ? -1 : 0);
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}
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static unsigned char uart_psoc6_poll_out(struct device *dev, unsigned char c)
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static void uart_psoc6_poll_out(struct device *dev, unsigned char c)
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{
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const struct cypress_psoc6_config *config = dev->config->config_info;
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while (Cy_SCB_UART_Put(config->base, (uint32_t)c) != 1UL)
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;
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return c;
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}
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static const struct uart_driver_api uart_psoc6_driver_api = {
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@ -202,13 +202,12 @@ static int uart_qmsi_poll_in(struct device *dev, unsigned char *data)
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return 0;
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}
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static unsigned char uart_qmsi_poll_out(struct device *dev,
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static void uart_qmsi_poll_out(struct device *dev,
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unsigned char data)
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{
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qm_uart_t instance = GET_CONTROLLER_INSTANCE(dev);
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qm_uart_write(instance, data);
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return data;
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}
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static int uart_qmsi_err_check(struct device *dev)
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@ -153,7 +153,7 @@ static int uart_sam_poll_in(struct device *dev, unsigned char *c)
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return 0;
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}
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static unsigned char uart_sam_poll_out(struct device *dev, unsigned char c)
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static void uart_sam_poll_out(struct device *dev, unsigned char c)
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{
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Uart *const uart = DEV_CFG(dev)->regs;
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/* send a character */
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uart->UART_THR = (u32_t)c;
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return c;
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}
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static int uart_sam_err_check(struct device *dev)
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@ -134,7 +134,7 @@ static int uart_sam0_poll_in(struct device *dev, unsigned char *c)
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return 0;
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}
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static unsigned char uart_sam0_poll_out(struct device *dev, unsigned char c)
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static void uart_sam0_poll_out(struct device *dev, unsigned char c)
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{
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SercomUsart *const usart = DEV_CFG(dev)->regs;
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/* send a character */
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usart->DATA.reg = c;
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return c;
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}
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#if CONFIG_UART_INTERRUPT_DRIVEN
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@ -77,10 +77,8 @@ struct uart_sifive_data {
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*
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* @param dev UART device struct
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* @param c Character to send
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*
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* @return Sent character
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*/
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static unsigned char uart_sifive_poll_out(struct device *dev,
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static void uart_sifive_poll_out(struct device *dev,
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unsigned char c)
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{
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volatile struct uart_sifive_regs_t *uart = DEV_UART(dev);
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@ -90,8 +88,6 @@ static unsigned char uart_sifive_poll_out(struct device *dev,
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;
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uart->tx = (int)c;
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return c;
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}
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/**
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@ -321,10 +321,8 @@ static int uart_stellaris_poll_in(struct device *dev, unsigned char *c)
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*
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* @param dev UART device struct
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* @param c Character to send
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*
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* @return Sent character
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*/
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static unsigned char uart_stellaris_poll_out(struct device *dev,
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static void uart_stellaris_poll_out(struct device *dev,
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unsigned char c)
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{
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volatile struct _uart *uart = UART_STRUCT(dev);
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@ -334,7 +332,6 @@ static unsigned char uart_stellaris_poll_out(struct device *dev,
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/* send a character */
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uart->dr = (u32_t)c;
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return c;
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}
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#if CONFIG_UART_INTERRUPT_DRIVEN
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@ -50,7 +50,7 @@ static int uart_stm32_poll_in(struct device *dev, unsigned char *c)
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return 0;
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}
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static unsigned char uart_stm32_poll_out(struct device *dev,
|
||||
static void uart_stm32_poll_out(struct device *dev,
|
||||
unsigned char c)
|
||||
{
|
||||
USART_TypeDef *UartInstance = UART_STRUCT(dev);
|
||||
|
@ -62,8 +62,6 @@ static unsigned char uart_stm32_poll_out(struct device *dev,
|
|||
LL_USART_ClearFlag_TC(UartInstance);
|
||||
|
||||
LL_USART_TransmitData8(UartInstance, (u8_t)c);
|
||||
|
||||
return c;
|
||||
}
|
||||
|
||||
static inline void __uart_stm32_get_clock(struct device *dev)
|
||||
|
|
|
@ -45,7 +45,7 @@ static int usart_mcux_lpc_poll_in(struct device *dev, unsigned char *c)
|
|||
return ret;
|
||||
}
|
||||
|
||||
static unsigned char usart_mcux_lpc_poll_out(struct device *dev,
|
||||
static void usart_mcux_lpc_poll_out(struct device *dev,
|
||||
unsigned char c)
|
||||
{
|
||||
const struct usart_mcux_lpc_config *config = dev->config->config_info;
|
||||
|
@ -55,8 +55,6 @@ static unsigned char usart_mcux_lpc_poll_out(struct device *dev,
|
|||
;
|
||||
|
||||
USART_WriteByte(config->base, c);
|
||||
|
||||
return c;
|
||||
}
|
||||
|
||||
static int usart_mcux_lpc_err_check(struct device *dev)
|
||||
|
|
|
@ -138,7 +138,7 @@ static int usart_sam_poll_in(struct device *dev, unsigned char *c)
|
|||
return 0;
|
||||
}
|
||||
|
||||
static unsigned char usart_sam_poll_out(struct device *dev, unsigned char c)
|
||||
static void usart_sam_poll_out(struct device *dev, unsigned char c)
|
||||
{
|
||||
Usart *const usart = DEV_CFG(dev)->regs;
|
||||
|
||||
|
@ -149,7 +149,6 @@ static unsigned char usart_sam_poll_out(struct device *dev, unsigned char c)
|
|||
|
||||
/* send a character */
|
||||
usart->US_THR = (u32_t)c;
|
||||
return c;
|
||||
}
|
||||
|
||||
static int usart_sam_err_check(struct device *dev)
|
||||
|
|
|
@ -177,7 +177,7 @@ struct uart_device_config {
|
|||
struct uart_driver_api {
|
||||
/** Console I/O function */
|
||||
int (*poll_in)(struct device *dev, unsigned char *p_char);
|
||||
unsigned char (*poll_out)(struct device *dev, unsigned char out_char);
|
||||
void (*poll_out)(struct device *dev, unsigned char out_char);
|
||||
|
||||
/** Console I/O function */
|
||||
int (*err_check)(struct device *dev);
|
||||
|
@ -303,19 +303,17 @@ static inline int _impl_uart_poll_in(struct device *dev, unsigned char *p_char)
|
|||
*
|
||||
* @param dev UART device structure.
|
||||
* @param out_char Character to send.
|
||||
*
|
||||
* @retval char Sent character.
|
||||
*/
|
||||
__syscall unsigned char uart_poll_out(struct device *dev,
|
||||
__syscall void uart_poll_out(struct device *dev,
|
||||
unsigned char out_char);
|
||||
|
||||
static inline unsigned char _impl_uart_poll_out(struct device *dev,
|
||||
static inline void _impl_uart_poll_out(struct device *dev,
|
||||
unsigned char out_char)
|
||||
{
|
||||
const struct uart_driver_api *api =
|
||||
(const struct uart_driver_api *)dev->driver_api;
|
||||
|
||||
return api->poll_out(dev, out_char);
|
||||
api->poll_out(dev, out_char);
|
||||
}
|
||||
|
||||
/**
|
||||
|
|
|
@ -898,16 +898,12 @@ static int cdc_acm_poll_in(struct device *dev, unsigned char *c)
|
|||
*
|
||||
* The UART poll method for USB UART is simulated by waiting till
|
||||
* we get the next BULK In upcall from the USB device controller or 100 ms.
|
||||
*
|
||||
* @return the same character which is sent
|
||||
*/
|
||||
static unsigned char cdc_acm_poll_out(struct device *dev,
|
||||
static void cdc_acm_poll_out(struct device *dev,
|
||||
unsigned char c)
|
||||
{
|
||||
cdc_acm_fifo_fill(dev, &c, 1);
|
||||
k_sem_take(&poll_wait_sem, K_MSEC(100));
|
||||
|
||||
return c;
|
||||
}
|
||||
|
||||
static const struct uart_driver_api cdc_acm_driver_api = {
|
||||
|
|
|
@ -38,7 +38,6 @@ static int test_poll_in(void)
|
|||
static int test_poll_out(void)
|
||||
{
|
||||
int i;
|
||||
unsigned char sent_char;
|
||||
struct device *uart_dev = device_get_binding(UART_DEVICE_NAME);
|
||||
|
||||
if (!uart_dev) {
|
||||
|
@ -48,13 +47,7 @@ static int test_poll_out(void)
|
|||
|
||||
/* Verify uart_poll_out() */
|
||||
for (i = 0; i < strlen(poll_data); i++) {
|
||||
sent_char = uart_poll_out(uart_dev, poll_data[i]);
|
||||
|
||||
if (sent_char != poll_data[i]) {
|
||||
TC_PRINT("expect send %c, actaul send %c\n",
|
||||
poll_data[i], sent_char);
|
||||
return TC_FAIL;
|
||||
}
|
||||
uart_poll_out(uart_dev, poll_data[i]);
|
||||
}
|
||||
|
||||
return TC_PASS;
|
||||
|
|
Loading…
Add table
Add a link
Reference in a new issue