mirror of
https://github.com/apache/nuttx.git
synced 2026-05-25 01:19:55 +08:00
serial: use hostfs read/write on stdio as uart
This is used to implement serial console on instruction set simulator (ISS). Signed-off-by: chenxiaoyi <chenxiaoyi@xiaomi.com>
This commit is contained in:
chenxiaoyi
Xiang Xiao
@@ -43,6 +43,7 @@
|
||||
#include <nuttx/segger/rtt.h>
|
||||
#include <nuttx/sensors/sensor.h>
|
||||
#include <nuttx/serial/pty.h>
|
||||
#include <nuttx/serial/uart_hostfs.h>
|
||||
#include <nuttx/serial/uart_ram.h>
|
||||
#include <nuttx/syslog/syslog.h>
|
||||
#include <nuttx/syslog/syslog_console.h>
|
||||
@@ -180,6 +181,10 @@ void drivers_initialize(void)
|
||||
syslog_console_init();
|
||||
#endif
|
||||
|
||||
#ifdef CONFIG_UART_HOSTFS
|
||||
uart_hostfs_init();
|
||||
#endif
|
||||
|
||||
#ifdef CONFIG_PSEUDOTERM_SUSV1
|
||||
/* Register the master pseudo-terminal multiplexor device */
|
||||
|
||||
|
||||
@@ -53,6 +53,33 @@ config SERIAL_GDBSTUB_PATH
|
||||
---help---
|
||||
The path to the serial device that will be used for GDB stub.
|
||||
|
||||
config UART_HOSTFS
|
||||
bool "Use hostfs read/write on UART_HOSTFS_DEVPATH as uart console"
|
||||
depends on FS_HOSTFS
|
||||
default n
|
||||
select SERIAL_RXDMA
|
||||
select SERIAL_TXDMA
|
||||
|
||||
config UART_HOSTFS_DEVPATH
|
||||
string "The host device node that will be used by"
|
||||
depends on UART_HOSTFS
|
||||
default "/dev/tty"
|
||||
|
||||
config UART_HOSTFS_RXBUFSIZE
|
||||
int "Uart hostfs receive buffer size"
|
||||
default 256
|
||||
depends on UART_HOSTFS
|
||||
|
||||
config UART_HOSTFS_TXBUFSIZE
|
||||
int "Uart hostfs transmit buffer size"
|
||||
default 256
|
||||
depends on UART_HOSTFS
|
||||
|
||||
config UART_HOSTFS_DELAY_USEC
|
||||
int "Uart hostfs polling interval in microseconds"
|
||||
default 1000
|
||||
depends on UART_HOSTFS
|
||||
|
||||
menuconfig UART_PL011
|
||||
bool "PL011 Chip support"
|
||||
default n
|
||||
|
||||
@@ -48,6 +48,10 @@ ifeq ($(CONFIG_RPMSG_UART),y)
|
||||
CSRCS += uart_rpmsg.c
|
||||
endif
|
||||
|
||||
ifeq ($(CONFIG_UART_HOSTFS),y)
|
||||
CSRCS += uart_hostfs.c
|
||||
endif
|
||||
|
||||
# Pseudo-terminal support
|
||||
|
||||
ifeq ($(CONFIG_PSEUDOTERM),y)
|
||||
|
||||
@@ -0,0 +1,302 @@
|
||||
/****************************************************************************
|
||||
* drivers/serial/uart_hostfs.c
|
||||
*
|
||||
* Licensed to the Apache Software Foundation (ASF) under one or more
|
||||
* contributor license agreements. See the NOTICE file distributed with
|
||||
* this work for additional information regarding copyright ownership. The
|
||||
* ASF licenses this file to you under the Apache License, Version 2.0 (the
|
||||
* "License"); you may not use this file except in compliance with the
|
||||
* License. You may obtain a copy of the License at
|
||||
*
|
||||
* http://www.apache.org/licenses/LICENSE-2.0
|
||||
*
|
||||
* Unless required by applicable law or agreed to in writing, software
|
||||
* distributed under the License is distributed on an "AS IS" BASIS, WITHOUT
|
||||
* WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. See the
|
||||
* License for the specific language governing permissions and limitations
|
||||
* under the License.
|
||||
*
|
||||
****************************************************************************/
|
||||
|
||||
/****************************************************************************
|
||||
* Included Files
|
||||
****************************************************************************/
|
||||
|
||||
#include <nuttx/clock.h>
|
||||
#include <nuttx/fs/hostfs.h>
|
||||
#include <nuttx/serial/serial.h>
|
||||
#include <nuttx/wdog.h>
|
||||
|
||||
#include <debug.h>
|
||||
#include <fcntl.h>
|
||||
#include <unistd.h>
|
||||
|
||||
/****************************************************************************
|
||||
* Pre-processor Definitions
|
||||
****************************************************************************/
|
||||
|
||||
#define UART_WDOG_DELAY USEC2TICK(CONFIG_UART_HOSTFS_DELAY_USEC)
|
||||
|
||||
/****************************************************************************
|
||||
* Private Types
|
||||
****************************************************************************/
|
||||
|
||||
struct uart_hostfs_priv_s
|
||||
{
|
||||
int fd;
|
||||
bool rxint;
|
||||
struct wdog_s wdog;
|
||||
};
|
||||
|
||||
/****************************************************************************
|
||||
* Private Function Prototypes
|
||||
****************************************************************************/
|
||||
|
||||
static int uart_hostfs_setup(FAR struct uart_dev_s *dev);
|
||||
static void uart_hostfs_shutdown(FAR struct uart_dev_s *dev);
|
||||
static int uart_hostfs_attach(FAR struct uart_dev_s *dev);
|
||||
static void uart_hostfs_detach(FAR struct uart_dev_s *dev);
|
||||
static int uart_hostfs_ioctl(FAR struct file *filep, int cmd,
|
||||
unsigned long arg);
|
||||
static void uart_hostfs_rxint(FAR struct uart_dev_s *dev, bool enable);
|
||||
static bool uart_hostfs_rxavailable(FAR struct uart_dev_s *dev);
|
||||
#ifdef CONFIG_SERIAL_IFLOWCONTROL
|
||||
static bool uart_hostfs_rxflowcontrol(FAR struct uart_dev_s *dev,
|
||||
unsigned int nbuffered, bool upper);
|
||||
#endif
|
||||
static void uart_hostfs_dmatxavail(FAR struct uart_dev_s *dev);
|
||||
static void uart_hostfs_dmasend(FAR struct uart_dev_s *dev);
|
||||
static void uart_hostfs_dmarxfree(FAR struct uart_dev_s *dev);
|
||||
static void uart_hostfs_dmareceive(FAR struct uart_dev_s *dev);
|
||||
static void uart_hostfs_send(FAR struct uart_dev_s *dev, int ch);
|
||||
static void uart_hostfs_txint(FAR struct uart_dev_s *dev, bool enable);
|
||||
static bool uart_hostfs_txready(FAR struct uart_dev_s *dev);
|
||||
static bool uart_hostfs_txempty(FAR struct uart_dev_s *dev);
|
||||
|
||||
/****************************************************************************
|
||||
* Private Data
|
||||
****************************************************************************/
|
||||
|
||||
static const struct uart_ops_s g_uart_hostfs_ops =
|
||||
{
|
||||
.setup = uart_hostfs_setup,
|
||||
.shutdown = uart_hostfs_shutdown,
|
||||
.attach = uart_hostfs_attach,
|
||||
.detach = uart_hostfs_detach,
|
||||
.ioctl = uart_hostfs_ioctl,
|
||||
.rxint = uart_hostfs_rxint,
|
||||
.rxavailable = uart_hostfs_rxavailable,
|
||||
#ifdef CONFIG_SERIAL_IFLOWCONTROL
|
||||
.rxflowcontrol = uart_hostfs_rxflowcontrol,
|
||||
#endif
|
||||
.dmatxavail = uart_hostfs_dmatxavail,
|
||||
.dmasend = uart_hostfs_dmasend,
|
||||
.dmarxfree = uart_hostfs_dmarxfree,
|
||||
.dmareceive = uart_hostfs_dmareceive,
|
||||
.send = uart_hostfs_send,
|
||||
.txint = uart_hostfs_txint,
|
||||
.txready = uart_hostfs_txready,
|
||||
.txempty = uart_hostfs_txempty,
|
||||
};
|
||||
|
||||
static char g_uart_hostfs_rxbuf[CONFIG_UART_HOSTFS_RXBUFSIZE];
|
||||
static char g_uart_hostfs_txbuf[CONFIG_UART_HOSTFS_TXBUFSIZE];
|
||||
|
||||
static struct uart_hostfs_priv_s g_uart_hostfs_priv;
|
||||
|
||||
static struct uart_dev_s g_uart_hostfs_dev =
|
||||
{
|
||||
.ops = &g_uart_hostfs_ops,
|
||||
.priv = &g_uart_hostfs_priv,
|
||||
.xmit =
|
||||
{
|
||||
.size = CONFIG_UART_HOSTFS_TXBUFSIZE,
|
||||
.buffer = g_uart_hostfs_txbuf,
|
||||
},
|
||||
.recv =
|
||||
{
|
||||
.size = CONFIG_UART_HOSTFS_RXBUFSIZE,
|
||||
.buffer = g_uart_hostfs_rxbuf,
|
||||
},
|
||||
};
|
||||
|
||||
/****************************************************************************
|
||||
* Private Functions
|
||||
****************************************************************************/
|
||||
|
||||
static int uart_hostfs_setup(FAR struct uart_dev_s *dev)
|
||||
{
|
||||
FAR struct uart_hostfs_priv_s *priv = dev->priv;
|
||||
|
||||
priv->fd = host_open(CONFIG_UART_HOSTFS_DEVPATH, O_RDWR | O_NONBLOCK,
|
||||
0666);
|
||||
return priv->fd;
|
||||
}
|
||||
|
||||
static void uart_hostfs_shutdown(FAR struct uart_dev_s *dev)
|
||||
{
|
||||
FAR struct uart_hostfs_priv_s *priv = dev->priv;
|
||||
|
||||
if (priv->fd > 0)
|
||||
{
|
||||
host_close(priv->fd);
|
||||
priv->fd = -1;
|
||||
}
|
||||
}
|
||||
|
||||
static int uart_hostfs_attach(FAR struct uart_dev_s *dev)
|
||||
{
|
||||
return OK;
|
||||
}
|
||||
|
||||
static void uart_hostfs_detach(FAR struct uart_dev_s *dev)
|
||||
{
|
||||
}
|
||||
|
||||
static int uart_hostfs_ioctl(FAR struct file *filep, int cmd,
|
||||
unsigned long arg)
|
||||
{
|
||||
return -ENOTTY;
|
||||
}
|
||||
|
||||
static void uart_hostfs_wdog(wdparm_t arg)
|
||||
{
|
||||
FAR struct uart_dev_s *dev = (FAR struct uart_dev_s *)arg;
|
||||
FAR struct uart_hostfs_priv_s *priv = dev->priv;
|
||||
|
||||
if (priv->rxint)
|
||||
{
|
||||
uart_dmarxfree(dev);
|
||||
}
|
||||
|
||||
wd_start(&priv->wdog, UART_WDOG_DELAY, uart_hostfs_wdog, (wdparm_t)dev);
|
||||
}
|
||||
|
||||
static void uart_hostfs_rxint(FAR struct uart_dev_s *dev, bool enable)
|
||||
{
|
||||
FAR struct uart_hostfs_priv_s *priv = dev->priv;
|
||||
|
||||
priv->rxint = enable;
|
||||
if (enable)
|
||||
{
|
||||
wd_start(&priv->wdog, 0, uart_hostfs_wdog, (wdparm_t)dev);
|
||||
}
|
||||
else
|
||||
{
|
||||
wd_cancel(&priv->wdog);
|
||||
}
|
||||
}
|
||||
|
||||
static bool uart_hostfs_rxavailable(FAR struct uart_dev_s *dev)
|
||||
{
|
||||
return true;
|
||||
}
|
||||
|
||||
#ifdef CONFIG_SERIAL_IFLOWCONTROL
|
||||
static bool uart_hostfs_rxflowcontrol(FAR struct uart_dev_s *dev,
|
||||
unsigned int nbuffered, bool upper)
|
||||
{
|
||||
FAR struct uart_buffer_s *rxbuf = &dev->recv;
|
||||
|
||||
return nbuffered == rxbuf->size;
|
||||
}
|
||||
#endif
|
||||
|
||||
static void uart_hostfs_dmatxavail(FAR struct uart_dev_s *dev)
|
||||
{
|
||||
uart_xmitchars_dma(dev);
|
||||
}
|
||||
|
||||
static void uart_hostfs_dmasend(FAR struct uart_dev_s *dev)
|
||||
{
|
||||
FAR struct uart_hostfs_priv_s *priv = dev->priv;
|
||||
FAR struct uart_dmaxfer_s *xfer = &dev->dmatx;
|
||||
int ret;
|
||||
|
||||
xfer->nbytes = 0;
|
||||
ret = host_write(priv->fd, xfer->buffer, xfer->length);
|
||||
if (ret > 0)
|
||||
{
|
||||
xfer->nbytes = ret;
|
||||
|
||||
if (ret == xfer->length && xfer->nlength > 0)
|
||||
{
|
||||
ret = host_write(priv->fd, xfer->nbuffer, xfer->nlength);
|
||||
if (ret > 0)
|
||||
{
|
||||
xfer->nbytes += ret;
|
||||
}
|
||||
}
|
||||
}
|
||||
|
||||
uart_xmitchars_done(dev);
|
||||
}
|
||||
|
||||
static void uart_hostfs_dmarxfree(FAR struct uart_dev_s *dev)
|
||||
{
|
||||
uart_recvchars_dma(dev);
|
||||
}
|
||||
|
||||
static void uart_hostfs_dmareceive(FAR struct uart_dev_s *dev)
|
||||
{
|
||||
FAR struct uart_hostfs_priv_s *priv = dev->priv;
|
||||
FAR struct uart_dmaxfer_s *xfer = &dev->dmarx;
|
||||
ssize_t ret;
|
||||
|
||||
xfer->nbytes = 0;
|
||||
ret = host_read(priv->fd, xfer->buffer, xfer->length);
|
||||
if (ret > 0)
|
||||
{
|
||||
xfer->nbytes = ret;
|
||||
|
||||
if (ret == xfer->length && xfer->nlength > 0)
|
||||
{
|
||||
ret = host_read(priv->fd, xfer->nbuffer, xfer->nlength);
|
||||
if (ret > 0)
|
||||
{
|
||||
xfer->nbytes += ret;
|
||||
}
|
||||
}
|
||||
}
|
||||
|
||||
uart_recvchars_done(dev);
|
||||
}
|
||||
|
||||
static void uart_hostfs_send(FAR struct uart_dev_s *dev, int ch)
|
||||
{
|
||||
FAR struct uart_hostfs_priv_s *priv = dev->priv;
|
||||
char c = ch;
|
||||
|
||||
host_write(priv->fd, &c, 1);
|
||||
}
|
||||
|
||||
static void uart_hostfs_txint(FAR struct uart_dev_s *dev, bool enable)
|
||||
{
|
||||
}
|
||||
|
||||
static bool uart_hostfs_txready(FAR struct uart_dev_s *dev)
|
||||
{
|
||||
return true;
|
||||
}
|
||||
|
||||
static bool uart_hostfs_txempty(FAR struct uart_dev_s *dev)
|
||||
{
|
||||
return true;
|
||||
}
|
||||
|
||||
/****************************************************************************
|
||||
* Public Functions
|
||||
****************************************************************************/
|
||||
|
||||
void uart_hostfs_init(void)
|
||||
{
|
||||
uart_register("/dev/console", &g_uart_hostfs_dev);
|
||||
}
|
||||
|
||||
int up_putc(int ch)
|
||||
{
|
||||
FAR struct uart_dev_s *dev = &g_uart_hostfs_dev;
|
||||
|
||||
uart_hostfs_send(dev, ch);
|
||||
return ch;
|
||||
}
|
||||
@@ -0,0 +1,40 @@
|
||||
/****************************************************************************
|
||||
* include/nuttx/serial/uart_hostfs.h
|
||||
*
|
||||
* Licensed to the Apache Software Foundation (ASF) under one or more
|
||||
* contributor license agreements. See the NOTICE file distributed with
|
||||
* this work for additional information regarding copyright ownership. The
|
||||
* ASF licenses this file to you under the Apache License, Version 2.0 (the
|
||||
* "License"); you may not use this file except in compliance with the
|
||||
* License. You may obtain a copy of the License at
|
||||
*
|
||||
* http://www.apache.org/licenses/LICENSE-2.0
|
||||
*
|
||||
* Unless required by applicable law or agreed to in writing, software
|
||||
* distributed under the License is distributed on an "AS IS" BASIS, WITHOUT
|
||||
* WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. See the
|
||||
* License for the specific language governing permissions and limitations
|
||||
* under the License.
|
||||
*
|
||||
****************************************************************************/
|
||||
|
||||
#ifndef __INCLUDE_NUTTX_SERIAL_UART_HOSTFS_H
|
||||
#define __INCLUDE_NUTTX_SERIAL_UART_HOSTFS_H
|
||||
|
||||
/****************************************************************************
|
||||
* Included Files
|
||||
****************************************************************************/
|
||||
|
||||
#include <nuttx/config.h>
|
||||
|
||||
/****************************************************************************
|
||||
* Public Function Prototypes
|
||||
****************************************************************************/
|
||||
|
||||
#ifdef CONFIG_UART_HOSTFS
|
||||
|
||||
void uart_hostfs_init(void);
|
||||
|
||||
#endif
|
||||
|
||||
#endif /* __INCLUDE_NUTTX_SERIAL_UART_HOSTFS_H */
|
||||
Reference in New Issue
Block a user