mirror of
https://github.com/zephyrproject-rtos/zephyr
synced 2025-08-10 08:45:39 +00:00
ac74d8b652
Replace the existing Apache 2.0 boilerplate header with an SPDX tag throughout the zephyr code tree. This patch was generated via a script run over the master branch. Also updated doc/porting/application.rst that had a dependency on line numbers in a literal include. Manually updated subsys/logging/sys_log.c that had a malformed header in the original file. Also cleanup several cases that already had a SPDX tag and we either got a duplicate or missed updating. Jira: ZEP-1457 Change-Id: I6131a1d4ee0e58f5b938300c2d2fc77d2e69572c Signed-off-by: David B. Kinder <david.b.kinder@intel.com> Signed-off-by: Kumar Gala <kumar.gala@linaro.org>
83 lines
1.8 KiB
C
83 lines
1.8 KiB
C
/*
|
|
* Copyright (c) 2014-2015, Wind River Systems, Inc.
|
|
*
|
|
* SPDX-License-Identifier: Apache-2.0
|
|
*/
|
|
|
|
#include <errno.h>
|
|
|
|
#include <kernel.h>
|
|
#include <arch/cpu.h>
|
|
#include <sections.h>
|
|
#include <misc/__assert.h>
|
|
#include <stdint.h>
|
|
#include <misc/util.h>
|
|
#include <string.h>
|
|
#include <board.h>
|
|
#include <init.h>
|
|
#include <uart.h>
|
|
|
|
#define NSIM_UART_DATA 0
|
|
#define NSIM_UART_STATUS 1
|
|
|
|
#define DEV_CFG(dev) \
|
|
((const struct uart_device_config * const)(dev)->config->config_info)
|
|
|
|
#define DATA_REG(dev) (DEV_CFG(dev)->regs + NSIM_UART_DATA)
|
|
#define STATUS_REG(dev) (DEV_CFG(dev)->regs + NSIM_UART_STATUS)
|
|
|
|
#define TXEMPTY 0x80 /* Transmit FIFO empty and next character can be sent */
|
|
|
|
static const struct uart_driver_api uart_nsim_driver_api;
|
|
|
|
/**
|
|
* @brief Initialize fake serial port
|
|
*
|
|
* @param dev UART device struct
|
|
*
|
|
* @return 0
|
|
*/
|
|
static int uart_nsim_init(struct device *dev)
|
|
{
|
|
ARG_UNUSED(dev);
|
|
|
|
dev->driver_api = &uart_nsim_driver_api;
|
|
|
|
return 0;
|
|
}
|
|
|
|
/*
|
|
* @brief Output a character to serial port
|
|
*
|
|
* @param dev UART device struct
|
|
* @param c character to output
|
|
*/
|
|
unsigned char uart_nsim_poll_out(struct device *dev, unsigned char c)
|
|
{
|
|
|
|
/* wait for transmitter to ready to accept a character */
|
|
while ((_arc_v2_aux_reg_read(STATUS_REG(dev)) & TXEMPTY) == 0)
|
|
;
|
|
_arc_v2_aux_reg_write(DATA_REG(dev), c);
|
|
return c;
|
|
}
|
|
|
|
static int uart_nsim_poll_in(struct device *dev, unsigned char *c)
|
|
{
|
|
return -ENOTSUP;
|
|
|
|
}
|
|
|
|
static const struct uart_driver_api uart_nsim_driver_api = {
|
|
.poll_out = uart_nsim_poll_out,
|
|
.poll_in = uart_nsim_poll_in,
|
|
};
|
|
|
|
static struct uart_device_config uart_nsim_dev_cfg_0 = {
|
|
.regs = CONFIG_UART_NSIM_PORT_0_BASE_ADDR,
|
|
};
|
|
|
|
DEVICE_INIT(uart_nsim0, CONFIG_UART_NSIM_PORT_0_NAME, &uart_nsim_init,
|
|
NULL, &uart_nsim_dev_cfg_0,
|
|
PRE_KERNEL_1, CONFIG_KERNEL_INIT_PRIORITY_DEVICE);
|