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drivers: serial: add async API system calls

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These were unintentionally omitted. We don't expose callback
registration or callback response APIs for security reasons.

Signed-off-by: Andrew Boie <andrew.p.boie@intel.com>
This commit is contained in:
Andrew Boie 2020-01-13 15:45:36 -08:00 • committed by Anas Nashif
commit a51b125aba
2 changed files with 47 additions and 8 deletions
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31
drivers/serial/uart_handlers.c
View file

@ -41,6 +41,37 @@ static inline void z_vrfy_uart_poll_out(struct device *dev,
}
#include <syscalls/uart_poll_out_mrsh.c>
#ifdef CONFIG_UART_ASYNC_API
/* callback_set() excluded as we don't allow ISR callback installation from
* user mode
*
* rx_buf_rsp() excluded as it's designed to be called from ISR callbacks
*/
static inline int z_vrfy_uart_tx(struct device *dev, const u8_t *buf,
size_t len, u32_t timeout)
{
Z_OOPS(Z_SYSCALL_DRIVER_UART(dev, tx));
Z_OOPS(Z_SYSCALL_MEMORY_READ(buf, len));
return z_impl_uart_tx(dev, buf, len, timeout);
}
#include <syscalls/uart_tx_mrsh.c>
UART_SIMPLE(tx_abort);
#include <syscalls/uart_tx_abort_mrsh.c>
static inline int z_vrfy_uart_rx_enable(struct device *dev, u8_t *buf,
size_t len, u32_t timeout)
{
Z_OOPS(Z_SYSCALL_DRIVER_UART(dev, rx_enable));
Z_OOPS(Z_SYSCALL_MEMORY_WRITE(buf, len));
return z_impl_uart_rx_enable(dev, buf, len, timeout);
}
#include <syscalls/uart_rx_enable_mrsh.c>
UART_SIMPLE(rx_disable);
#include <syscalls/uart_rx_disable_mrsh.c>
#endif /* CONFIG_UART_ASYNC_API */
#ifdef CONFIG_UART_INTERRUPT_DRIVEN
UART_SIMPLE_VOID(irq_tx_enable)

24
include/drivers/uart.h
View file

@ -465,10 +465,11 @@ static inline int uart_callback_set(struct device *dev,
* @retval -EBUSY There is already an ongoing transfer.
* @retval 0 If successful, negative errno code otherwise.
*/
static inline int uart_tx(struct device *dev,
const u8_t *buf,
size_t len,
u32_t timeout)
__syscall int uart_tx(struct device *dev, const u8_t *buf, size_t len,
u32_t timeout);
static inline int z_impl_uart_tx(struct device *dev, const u8_t *buf,
size_t len, u32_t timeout)
{
const struct uart_driver_api *api =
@ -487,7 +488,9 @@ static inline int uart_tx(struct device *dev,
* @retval -EFAULT There is no active transmission.
* @retval 0 If successful, negative errno code otherwise.
*/
static inline int uart_tx_abort(struct device *dev)
__syscall int uart_tx_abort(struct device *dev);
static inline int z_impl_uart_tx_abort(struct device *dev)
{
const struct uart_driver_api *api =
(const struct uart_driver_api *)dev->driver_api;
@ -511,8 +514,11 @@ static inline int uart_tx_abort(struct device *dev)
* @retval 0 If successful, negative errno code otherwise.
*
*/
static inline int uart_rx_enable(struct device *dev, u8_t *buf, size_t len,
u32_t timeout)
__syscall int uart_rx_enable(struct device *dev, u8_t *buf, size_t len,
u32_t timeout);
static inline int z_impl_uart_rx_enable(struct device *dev, u8_t *buf,
size_t len, u32_t timeout)
{
const struct uart_driver_api *api =
(const struct uart_driver_api *)dev->driver_api;
@ -557,7 +563,9 @@ static inline int uart_rx_buf_rsp(struct device *dev, u8_t *buf, size_t len)
* @retval -EFAULT There is no active reception.
* @retval 0 If successful, negative errno code otherwise.
*/
static inline int uart_rx_disable(struct device *dev)
__syscall int uart_rx_disable(struct device *dev);
static inline int z_impl_uart_rx_disable(struct device *dev)
{
const struct uart_driver_api *api =
(const struct uart_driver_api *)dev->driver_api;