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kernel_liteos_a/kernel/common/console.c

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/*
* Copyright (c) 2013-2019, Huawei Technologies Co., Ltd. All rights reserved.
* Copyright (c) 2020, Huawei Device Co., Ltd. All rights reserved.
*
* Redistribution and use in source and binary forms, with or without modification,
* are permitted provided that the following conditions are met:
*
* 1. Redistributions of source code must retain the above copyright notice, this list of
* conditions and the following disclaimer.
*
* 2. Redistributions in binary form must reproduce the above copyright notice, this list
* of conditions and the following disclaimer in the documentation and/or other materials
* provided with the distribution.
*
* 3. Neither the name of the copyright holder nor the names of its contributors may be used
* to endorse or promote products derived from this software without specific prior written
* permission.
*
* THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
* "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO,
* THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR
* PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT HOLDER OR
* CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL,
* EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO,
* PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS;
* OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY,
* WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR
* OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF
* ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
*/
#include "console.h"
#include "fcntl.h"
#include "sys/ioctl.h"
#ifdef LOSCFG_FILE_MODE
#include "stdarg.h"
#endif
#include "unistd.h"
#include "securec.h"
#include "inode/inode.h"
#ifdef LOSCFG_SHELL_DMESG
#include "dmesg_pri.h"
#endif
#ifdef LOSCFG_SHELL
#include "shcmd.h"
#include "shell_pri.h"
#endif
#include "los_exc_pri.h"
#include "los_process_pri.h"
#include "user_copy.h"
#ifdef __cplusplus
#if __cplusplus
extern "C" {
#endif /* __cplusplus */
#endif /* __cplusplus */
#define EACH_CHAR 1
#define UART_IOC_MAGIC 'u'
#define UART_CFG_ATTR _IOW(UART_IOC_MAGIC, 5, int)
#define UART_CFG_PRIVATE _IOW(UART_IOC_MAGIC, 6, int)
/* Inter-module variable */
extern UINT32 g_uart_fputc_en;
STATIC UINT32 ConsoleSendTask(UINTPTR param);
STATIC UINT8 g_taskConsoleIDArray[LOSCFG_BASE_CORE_TSK_LIMIT];
STATIC SPIN_LOCK_INIT(g_consoleSpin);
#define SHELL_ENTRYID_INVALID 0xFFFFFFFF
#define SHELL_TASK_PRIORITY 9
#define CONSOLE_CIRBUF_EVENT 0x02U
#define CONSOLE_SEND_TASK_EXIT 0x04U
#define CONSOLE_SEND_TASK_RUNNING 0x10U
CONSOLE_CB *g_console[CONSOLE_NUM];
#define MIN(a, b) ((a) < (b) ? (a) : (b))
/*
* acquire uart driver function and filep of /dev/console,
* then store uart driver function in *filepOps
* and store filep of /dev/console in *privFilep.
*/
INT32 GetFilepOps(const struct file *filep, struct file **privFilep, const struct file_operations_vfs **filepOps)
{
INT32 ret;
if ((filep == NULL) || (filep->f_inode == NULL) || (filep->f_inode->i_private == NULL)) {
ret = EINVAL;
goto ERROUT;
}
/* to find console device's filep(now it is *privFilep) throught i_private */
*privFilep = (struct file *)filep->f_inode->i_private;
if (((*privFilep)->f_inode == NULL) || ((*privFilep)->f_inode->u.i_ops == NULL)) {
ret = EINVAL;
goto ERROUT;
}
/* to find uart driver operation function throutht u.i_opss */
*filepOps = (*privFilep)->f_inode->u.i_ops;
return ENOERR;
ERROUT:
set_errno(ret);
return VFS_ERROR;
}
INT32 ConsoleTcGetAttr(INT32 fd, struct termios *termios)
{
struct file *filep = NULL;
CONSOLE_CB *consoleCB = NULL;
if ((fd >= STDIN_FILENO) && (fd <= STDERR_FILENO)) {
fd = ConsoleUpdateFd();
if (fd < STDIN_FILENO) {
return -EBADF;
}
}
int ret = fs_getfilep(fd, &filep);
if (ret < 0) {
return -EPERM;
}
consoleCB = (CONSOLE_CB *)filep->f_priv;
if (consoleCB == NULL) {
return -EFAULT;
}
termios->c_lflag = consoleCB->consoleTermios.c_lflag;
return LOS_OK;
}
INT32 ConsoleTcSetAttr(INT32 fd, INT32 actions, const struct termios *termios)
{
struct file *filep = NULL;
CONSOLE_CB *consoleCB = NULL;
(VOID)actions;
if ((fd >= STDIN_FILENO) && (fd <= STDERR_FILENO)) {
fd = ConsoleUpdateFd();
if (fd < STDIN_FILENO) {
return -EBADF;
}
}
int ret = fs_getfilep(fd, &filep);
if (ret < 0) {
return -EPERM;
}
consoleCB = (CONSOLE_CB *)filep->f_priv;
if (consoleCB == NULL) {
return -EFAULT;
}
consoleCB->consoleTermios.c_lflag = termios->c_lflag;
return LOS_OK;
}
STATIC UINT32 ConsoleRefcountGet(const CONSOLE_CB *consoleCB)
{
return consoleCB->refCount;
}
STATIC VOID ConsoleRefcountSet(CONSOLE_CB *consoleCB, BOOL flag)
{
if (flag == TRUE) {
++(consoleCB->refCount);
} else {
--(consoleCB->refCount);
}
}
BOOL IsConsoleOccupied(const CONSOLE_CB *consoleCB)
{
if (ConsoleRefcountGet(consoleCB) != FALSE) {
return TRUE;
} else {
return FALSE;
}
}
STATIC INT32 ConsoleCtrlCaptureLine(CONSOLE_CB *consoleCB)
{
struct termios *consoleTermios = NULL;
UINT32 intSave;
LOS_SpinLockSave(&g_consoleSpin, &intSave);
consoleTermios = &consoleCB->consoleTermios;
(VOID)ConsoleTcGetAttr(consoleCB->fd, consoleTermios);
consoleTermios->c_lflag |= ICANON | ECHO;
(VOID)ConsoleTcSetAttr(consoleCB->fd, 0, consoleTermios);
LOS_SpinUnlockRestore(&g_consoleSpin, intSave);
return LOS_OK;
}
STATIC INT32 ConsoleCtrlCaptureChar(CONSOLE_CB *consoleCB)
{
struct termios *consoleTermios = NULL;
UINT32 intSave;
LOS_SpinLockSave(&g_consoleSpin, &intSave);
consoleTermios = &consoleCB->consoleTermios;
(VOID)ConsoleTcGetAttr(consoleCB->fd, consoleTermios);
consoleTermios->c_lflag &= ~(ICANON | ECHO);
(VOID)ConsoleTcSetAttr(consoleCB->fd, 0, consoleTermios);
LOS_SpinUnlockRestore(&g_consoleSpin, intSave);
return LOS_OK;
}
STATIC INT32 ConsoleCtrlRightsCapture(CONSOLE_CB *consoleCB)
{
(VOID)LOS_SemPend(consoleCB->consoleSem, LOS_WAIT_FOREVER);
if ((ConsoleRefcountGet(consoleCB) == 0) &&
(OsCurrTaskGet()->taskID != consoleCB->shellEntryId)) {
/* not 0:indicate that shellentry is in uart_read, suspend shellentry task directly */
(VOID)LOS_TaskSuspend(consoleCB->shellEntryId);
}
ConsoleRefcountSet(consoleCB, TRUE);
return LOS_OK;
}
STATIC INT32 ConsoleCtrlRightsRelease(CONSOLE_CB *consoleCB)
{
if (ConsoleRefcountGet(consoleCB) == 0) {
PRINT_ERR("console is free\n");
(VOID)LOS_SemPost(consoleCB->consoleSem);
return LOS_NOK;
} else {
ConsoleRefcountSet(consoleCB, FALSE);
if ((ConsoleRefcountGet(consoleCB) == 0) &&
(OsCurrTaskGet()->taskID != consoleCB->shellEntryId)) {
(VOID)LOS_TaskResume(consoleCB->shellEntryId);
}
}
(VOID)LOS_SemPost(consoleCB->consoleSem);
return LOS_OK;
}
STATIC CONSOLE_CB *OsGetConsoleByDevice(const CHAR *deviceName)
{
INT32 ret;
CHAR *fullpath = NULL;
struct inode *inode = NULL;
struct inode_search_s desc;
ret = vfs_normalize_path(NULL, deviceName, &fullpath);
if (ret < 0) {
set_errno(EINVAL);
return NULL;
}
SETUP_SEARCH(&desc, fullpath, false);
ret = inode_find(&desc);
if (ret < 0) {
set_errno(EACCES);
free(fullpath);
return NULL;
}
inode = desc.node;
free(fullpath);
if (g_console[CONSOLE_SERIAL - 1]->devInode == inode) {
inode_release(inode);
return g_console[CONSOLE_SERIAL - 1];
} else if (g_console[CONSOLE_TELNET - 1]->devInode == inode) {
inode_release(inode);
return g_console[CONSOLE_TELNET - 1];
} else {
inode_release(inode);
set_errno(ENOENT);
return NULL;
}
}
STATIC INT32 OsGetConsoleID(const CHAR *deviceName)
{
if ((deviceName != NULL) &&
(strlen(deviceName) == strlen(SERIAL)) &&
(!strncmp(deviceName, SERIAL, strlen(SERIAL)))) {
return CONSOLE_SERIAL;
}
#ifdef LOSCFG_NET_TELNET
else if ((deviceName != NULL) &&
(strlen(deviceName) == strlen(TELNET)) &&
(!strncmp(deviceName, TELNET, strlen(TELNET)))) {
return CONSOLE_TELNET;
}
#endif
return -1;
}
STATIC INT32 OsConsoleFullpathToID(const CHAR *fullpath)
{
#define CONSOLE_SERIAL_1 "/dev/console1"
#define CONSOLE_TELNET_2 "/dev/console2"
size_t len;
if (fullpath == NULL) {
return -1;
}
len = strlen(fullpath);
if ((len == strlen(CONSOLE_SERIAL_1)) &&
(!strncmp(fullpath, CONSOLE_SERIAL_1, strlen(CONSOLE_SERIAL_1)))) {
return CONSOLE_SERIAL;
}
#ifdef LOSCFG_NET_TELNET
else if ((len == strlen(CONSOLE_TELNET_2)) &&
(!strncmp(fullpath, CONSOLE_TELNET_2, strlen(CONSOLE_TELNET_2)))) {
return CONSOLE_TELNET;
}
#endif
return -1;
}
STATIC BOOL ConsoleFifoEmpty(const CONSOLE_CB *console)
{
if (console->fifoOut == console->fifoIn) {
return TRUE;
}
return FALSE;
}
STATIC VOID ConsoleFifoClearup(CONSOLE_CB *console)
{
console->fifoOut = 0;
console->fifoIn = 0;
(VOID)memset_s(console->fifo, CONSOLE_FIFO_SIZE, 0, CONSOLE_FIFO_SIZE);
}
STATIC VOID ConsoleFifoLenUpdate(CONSOLE_CB *console)
{
console->currentLen = console->fifoIn - console->fifoOut;
}
STATIC INT32 ConsoleReadFifo(CHAR *buffer, CONSOLE_CB *console, size_t bufLen)
{
INT32 ret;
UINT32 readNum;
readNum = MIN(bufLen, console->currentLen);
ret = memcpy_s(buffer, bufLen, console->fifo + console->fifoOut, readNum);
if (ret != EOK) {
PRINTK("%s,%d memcpy_s failed\n", __FUNCTION__, __LINE__);
return -1;
}
console->fifoOut += readNum;
if (ConsoleFifoEmpty(console)) {
ConsoleFifoClearup(console);
}
ConsoleFifoLenUpdate(console);
return (INT32)readNum;
}
INT32 FilepOpen(struct file *filep, const struct file_operations_vfs *fops)
{
INT32 ret;
if (fops->open == NULL) {
return -EFAULT;
}
/*
* adopt uart open function to open filep (filep is
* corresponding to filep of /dev/console)
*/
ret = fops->open(filep);
if (ret < 0) {
return -EPERM;
}
return ret;
}
STATIC INLINE VOID UserEndOfRead(CONSOLE_CB *consoleCB, struct file *filep,
const struct file_operations_vfs *fops)
{
CHAR ch;
if (consoleCB->consoleTermios.c_lflag & ECHO) {
ch = '\r';
(VOID)fops->write(filep, &ch, 1);
}
consoleCB->fifo[consoleCB->fifoIn++] = '\n';
consoleCB->fifo[consoleCB->fifoIn] = '\0';
consoleCB->currentLen = consoleCB->fifoIn;
}
enum {
STAT_NOMAL_KEY,
STAT_ESC_KEY,
STAT_MULTI_KEY
};
STATIC INT32 UserShellCheckUDRL(const CHAR ch, INT32 *lastTokenType)
{
INT32 ret = LOS_OK;
if (ch == 0x1b) { /* 0x1b: ESC */
*lastTokenType = STAT_ESC_KEY;
return ret;
} else if (ch == 0x5b) { /* 0x5b: first Key combination */
if (*lastTokenType == STAT_ESC_KEY) {
*lastTokenType = STAT_MULTI_KEY;
return ret;
}
} else if (ch == 0x41) { /* up */
if (*lastTokenType == STAT_MULTI_KEY) {
*lastTokenType = STAT_NOMAL_KEY;
return ret;
}
} else if (ch == 0x42) { /* down */
if (*lastTokenType == STAT_MULTI_KEY) {
*lastTokenType = STAT_NOMAL_KEY;
return ret;
}
} else if (ch == 0x43) { /* right */
if (*lastTokenType == STAT_MULTI_KEY) {
*lastTokenType = STAT_NOMAL_KEY;
return ret;
}
} else if (ch == 0x44) { /* left */
if (*lastTokenType == STAT_MULTI_KEY) {
*lastTokenType = STAT_NOMAL_KEY;
return ret;
}
}
return LOS_NOK;
}
STATIC INT32 IsNeedContinue(CONSOLE_CB *consoleCB, char ch, INT32 *lastTokenType)
{
if (((ch == '\b') && (consoleCB->consoleTermios.c_lflag & ECHO) && (ConsoleFifoEmpty(consoleCB))) ||
(UserShellCheckUDRL(ch, lastTokenType) == LOS_OK)) { /* parse the up/down/right/left key */
return LOS_NOK;
}
return LOS_OK;
}
STATIC VOID EchoToTerminal(CONSOLE_CB *consoleCB, struct file *filep, const struct file_operations_vfs *fops, char ch)
{
if (consoleCB->consoleTermios.c_lflag & ECHO) {
if (ch == '\b') {
(VOID)fops->write(filep, "\b \b", 3);
} else {
(VOID)fops->write(filep, &ch, EACH_CHAR);
}
}
}
STATIC VOID StoreReadChar(CONSOLE_CB *consoleCB, char ch, INT32 readcount)
{
if ((readcount == EACH_CHAR) && (consoleCB->fifoIn <= (CONSOLE_FIFO_SIZE - 3))) {
if (ch == '\b') {
consoleCB->fifo[--consoleCB->fifoIn] = '\0';
} else {
consoleCB->fifo[consoleCB->fifoIn] = (UINT8)ch;
consoleCB->fifoIn++;
}
}
}
STATIC INT32 UserFilepRead(CONSOLE_CB *consoleCB, struct file *filep, const struct file_operations_vfs *fops,
CHAR *buffer, size_t bufLen)
{
INT32 ret;
INT32 needreturn = LOS_NOK;
CHAR ch;
INT32 lastTokenType = STAT_NOMAL_KEY;
if (fops->read == NULL) {
return -EFAULT;
}
/* Non-ICANON mode */
if ((consoleCB->consoleTermios.c_lflag & ICANON) == 0) {
ret = fops->read(filep, buffer, bufLen);
if (ret < 0) {
return -EPERM;
}
return ret;
}
/* ICANON mode: store data to console buffer, read data and stored data into console fifo */
if (consoleCB->currentLen == 0) {
while (1) {
ret = fops->read(filep, &ch, EACH_CHAR);
if (ret <= 0) {
return ret;
}
if (IsNeedContinue(consoleCB, ch, &lastTokenType))
continue;
switch (ch) {
case '\r':
ch = '\n';
case '\n':
EchoToTerminal(consoleCB, filep, fops, ch);
UserEndOfRead(consoleCB, filep, fops);
ret = ConsoleReadFifo(buffer, consoleCB, bufLen);
needreturn = LOS_OK;
break;
case '\b':
default:
EchoToTerminal(consoleCB, filep, fops, ch);
StoreReadChar(consoleCB, ch, ret);
break;
}
if (needreturn == LOS_OK)
break;
}
} else {
/* if data is already in console fifo, we returen them immediately */
ret = ConsoleReadFifo(buffer, consoleCB, bufLen);
}
return ret;
}
INT32 FilepRead(struct file *filep, const struct file_operations_vfs *fops, CHAR *buffer, size_t bufLen)
{
INT32 ret;
if (fops->read == NULL) {
return -EFAULT;
}
/*
* adopt uart read function to read data from filep
* and write data to buffer (filep is
* corresponding to filep of /dev/console)
*/
ret = fops->read(filep, buffer, bufLen);
if (ret < 0) {
return -EPERM;
}
return ret;
}
INT32 FilepWrite(struct file *filep, const struct file_operations_vfs *fops, const CHAR *buffer, size_t bufLen)
{
INT32 ret;
if (fops->write == NULL) {
return -EFAULT;
}
ret = fops->write(filep, buffer, bufLen);
if (ret < 0) {
return -EPERM;
}
return ret;
}
INT32 FilepClose(struct file *filep, const struct file_operations_vfs *fops)
{
INT32 ret;
if ((fops == NULL) || (fops->close == NULL)) {
return -EFAULT;
}
/*
* adopt uart close function to open filep (filep is
* corresponding to filep of /dev/console)
*/
ret = fops->close(filep);
if (ret < 0) {
return -EPERM;
}
return ret;
}
INT32 FilepIoctl(struct file *filep, const struct file_operations_vfs *fops, INT32 cmd, unsigned long arg)
{
INT32 ret;
if (fops->ioctl == NULL) {
return -EFAULT;
}
ret = fops->ioctl(filep, cmd, arg);
if (ret < 0) {
return -EPERM;
}
return ret;
}
INT32 FilepPoll(struct file *filep, const struct file_operations_vfs *fops, poll_table *fds)
{
INT32 ret;
if (fops->poll == NULL) {
return -EFAULT;
}
/*
* adopt uart poll function to poll filep (filep is
* corresponding to filep of /dev/serial)
*/
ret = fops->poll(filep, fds);
if (ret < 0) {
return -EPERM;
}
return ret;
}
STATIC INT32 ConsoleOpen(struct file *filep)
{
INT32 ret;
UINT32 consoleID;
struct file *privFilep = NULL;
const struct file_operations_vfs *fileOps = NULL;
consoleID = (UINT32)OsConsoleFullpathToID(filep->f_path);
if (consoleID == (UINT32)-1) {
ret = EPERM;
goto ERROUT;
}
filep->f_priv = g_console[consoleID - 1];
ret = GetFilepOps(filep, &privFilep, &fileOps);
if (ret != ENOERR) {
ret = EINVAL;
goto ERROUT;
}
ret = FilepOpen(privFilep, fileOps);
if (ret < 0) {
ret = EPERM;
goto ERROUT;
}
return ENOERR;
ERROUT:
set_errno(ret);
return VFS_ERROR;
}
STATIC INT32 ConsoleClose(struct file *filep)
{
INT32 ret;
struct file *privFilep = NULL;
const struct file_operations_vfs *fileOps = NULL;
ret = GetFilepOps(filep, &privFilep, &fileOps);
if (ret != ENOERR) {
ret = EINVAL;
goto ERROUT;
}
ret = FilepClose(privFilep, fileOps);
if (ret < 0) {
ret = EPERM;
goto ERROUT;
}
return ENOERR;
ERROUT:
set_errno(ret);
return VFS_ERROR;
}
STATIC ssize_t DoRead(CONSOLE_CB *consoleCB, CHAR *buffer, size_t bufLen,
struct file *privFilep,
const struct file_operations_vfs *fileOps)
{
INT32 ret;
#ifdef LOSCFG_SHELL
if (OsCurrTaskGet()->taskID == consoleCB->shellEntryId) {
ret = FilepRead(privFilep, fileOps, buffer, bufLen);
} else {
#endif
(VOID)ConsoleCtrlRightsCapture(consoleCB);
ret = UserFilepRead(consoleCB, privFilep, fileOps, buffer, bufLen);
(VOID)ConsoleCtrlRightsRelease(consoleCB);
#ifdef LOSCFG_SHELL
}
#endif
return ret;
}
STATIC ssize_t ConsoleRead(struct file *filep, CHAR *buffer, size_t bufLen)
{
INT32 ret;
struct file *privFilep = NULL;
CONSOLE_CB *consoleCB = NULL;
CHAR *sbuffer = NULL;
BOOL userBuf = FALSE;
const struct file_operations_vfs *fileOps = NULL;
if ((buffer == NULL) || (bufLen == 0) || (bufLen > CONSOLE_FIFO_SIZE)) {
ret = EINVAL;
goto ERROUT;
}
userBuf = LOS_IsUserAddressRange((vaddr_t)(UINTPTR)buffer, bufLen);
ret = GetFilepOps(filep, &privFilep, &fileOps);
if (ret != ENOERR) {
ret = -EINVAL;
goto ERROUT;
}
consoleCB = (CONSOLE_CB *)filep->f_priv;
if (consoleCB == NULL) {
consoleCB = OsGetConsoleByTaskID(OsCurrTaskGet()->taskID);
if (consoleCB == NULL) {
return -EFAULT;
}
}
/*
* shell task use FilepRead function to get data,
* user task use UserFilepRead to get data
*/
sbuffer = userBuf ? LOS_MemAlloc(m_aucSysMem0, bufLen) : buffer;
if (sbuffer == NULL) {
ret = -ENOMEM;
goto ERROUT;
}
ret = DoRead(consoleCB, sbuffer, bufLen, privFilep, fileOps);
if (ret < 0) {
goto ERROUT;
}
if (userBuf) {
if (LOS_ArchCopyToUser(buffer, sbuffer, bufLen) != 0) {
ret = -EFAULT;
goto ERROUT;
}
LOS_MemFree(m_aucSysMem0, sbuffer);
}
return ret;
ERROUT:
if ((userBuf) && (sbuffer != NULL)) {
LOS_MemFree(m_aucSysMem0, sbuffer);
}
set_errno(-ret);
return VFS_ERROR;
}
STATIC ssize_t DoWrite(CirBufSendCB *cirBufSendCB, CHAR *buffer, size_t bufLen)
{
INT32 cnt = 0;
UINT32 intSave;
#ifdef LOSCFG_SHELL_DMESG
(VOID)OsLogMemcpyRecord(buffer, bufLen);
if (!OsCheckConsoleLock()) {
#endif
LOS_CirBufLock(&cirBufSendCB->cirBufCB, &intSave);
while (cnt < (INT32)bufLen) {
if ((buffer[cnt] == '\n') || (buffer[cnt] == '\r')) {
(VOID)LOS_CirBufWrite(&cirBufSendCB->cirBufCB, "\r", 1);
(VOID)LOS_CirBufWrite(&cirBufSendCB->cirBufCB, &buffer[cnt], 1);
cnt++;
continue;
}
(VOID)LOS_CirBufWrite(&cirBufSendCB->cirBufCB, &buffer[cnt], 1);
cnt++;
}
LOS_CirBufUnlock(&cirBufSendCB->cirBufCB, intSave);
/* Log is cached but not printed when a system exception occurs */
if (OsGetSystemStatus() == OS_SYSTEM_NORMAL) {
(VOID)LOS_EventWrite(&cirBufSendCB->sendEvent, CONSOLE_CIRBUF_EVENT);
}
#ifdef LOSCFG_SHELL_DMESG
}
#endif
return cnt;
}
STATIC ssize_t ConsoleWrite(struct file *filep, const CHAR *buffer, size_t bufLen)
{
INT32 ret;
CHAR *sbuffer = NULL;
BOOL userBuf = FALSE;
CirBufSendCB *cirBufSendCB = NULL;
struct file *privFilep = NULL;
const struct file_operations_vfs *fileOps = NULL;
if ((buffer == NULL) || (bufLen == 0) || (bufLen > CONSOLE_FIFO_SIZE)) {
ret = EINVAL;
goto ERROUT;
}
userBuf = LOS_IsUserAddressRange((vaddr_t)(UINTPTR)buffer, bufLen);
ret = GetFilepOps(filep, &privFilep, &fileOps);
if ((ret != ENOERR) || (fileOps->write == NULL) || (filep->f_priv == NULL)) {
ret = EINVAL;
goto ERROUT;
}
cirBufSendCB = ((CONSOLE_CB *)filep->f_priv)->cirBufSendCB;
/*
* adopt uart open function to read data from buffer
* and write data to filep (filep is
* corresponding to filep of /dev/console)
*/
sbuffer = userBuf ? LOS_MemAlloc(m_aucSysMem0, bufLen) : (CHAR *)buffer;
if (sbuffer == NULL) {
ret = ENOMEM;
goto ERROUT;
}
if (userBuf && (LOS_ArchCopyFromUser(sbuffer, buffer, bufLen) != 0)) {
ret = EFAULT;
goto ERROUT;
}
ret = DoWrite(cirBufSendCB, sbuffer, bufLen);
if (userBuf) {
LOS_MemFree(m_aucSysMem0, sbuffer);
}
return ret;
ERROUT:
if (userBuf && sbuffer != NULL) {
LOS_MemFree(m_aucSysMem0, sbuffer);
}
set_errno(ret);
return VFS_ERROR;
}
STATIC INT32 ConsoleIoctl(struct file *filep, INT32 cmd, unsigned long arg)
{
INT32 ret;
struct file *privFilep = NULL;
CONSOLE_CB *consoleCB = NULL;
const struct file_operations_vfs *fileOps = NULL;
ret = GetFilepOps(filep, &privFilep, &fileOps);
if (ret != ENOERR) {
ret = EINVAL;
goto ERROUT;
}
if (fileOps->ioctl == NULL) {
ret = EFAULT;
goto ERROUT;
}
consoleCB = (CONSOLE_CB *)filep->f_priv;
if (consoleCB == NULL) {
ret = EINVAL;
goto ERROUT;
}
switch (cmd) {
case CONSOLE_CONTROL_RIGHTS_CAPTURE:
ret = ConsoleCtrlRightsCapture(consoleCB);
break;
case CONSOLE_CONTROL_RIGHTS_RELEASE:
ret = ConsoleCtrlRightsRelease(consoleCB);
break;
case CONSOLE_CONTROL_CAPTURE_LINE:
ret = ConsoleCtrlCaptureLine(consoleCB);
break;
case CONSOLE_CONTROL_CAPTURE_CHAR:
ret = ConsoleCtrlCaptureChar(consoleCB);
break;
case CONSOLE_CONTROL_REG_USERTASK:
ret = ConsoleTaskReg(consoleCB->consoleID, arg);
break;
default:
if ((cmd == UART_CFG_ATTR || cmd == UART_CFG_PRIVATE)
&& !LOS_IsUserAddress(arg)) {
ret = EINVAL;
goto ERROUT;
}
ret = fileOps->ioctl(privFilep, cmd, arg);
break;
}
if (ret < 0) {
ret = EPERM;
goto ERROUT;
}
return ret;
ERROUT:
set_errno(ret);
return VFS_ERROR;
}
STATIC INT32 ConsolePoll(struct file *filep, poll_table *fds)
{
INT32 ret;
struct file *privFilep = NULL;
const struct file_operations_vfs *fileOps = NULL;
ret = GetFilepOps(filep, &privFilep, &fileOps);
if (ret != ENOERR) {
ret = EINVAL;
goto ERROUT;
}
ret = FilepPoll(privFilep, fileOps, fds);
if (ret < 0) {
ret = EPERM;
goto ERROUT;
}
return ret;
ERROUT:
set_errno(ret);
return VFS_ERROR;
}
/* console device driver function structure */
STATIC const struct file_operations_vfs g_consoleDevOps = {
.open = ConsoleOpen, /* open */
.close = ConsoleClose, /* close */
.read = ConsoleRead, /* read */
.write = ConsoleWrite, /* write */
.seek = NULL,
.ioctl = ConsoleIoctl,
.mmap = NULL,
#ifndef CONFIG_DISABLE_POLL
.poll = ConsolePoll,
#endif
.unlink = NULL,
};
STATIC VOID OsConsoleTermiosInit(CONSOLE_CB *consoleCB, const CHAR *deviceName)
{
struct termios consoleTermios;
if ((deviceName != NULL) &&
(strlen(deviceName) == strlen(SERIAL)) &&
(!strncmp(deviceName, SERIAL, strlen(SERIAL)))) {
consoleCB->isNonBlock = SetSerialBlock(consoleCB);
/* set console to have a buffer for user */
(VOID)ConsoleTcGetAttr(consoleCB->fd, &consoleTermios);
consoleTermios.c_lflag |= ICANON | ECHO;
(VOID)ConsoleTcSetAttr(consoleCB->fd, 0, &consoleTermios);
}
#ifdef LOSCFG_NET_TELNET
else if ((deviceName != NULL) &&
(strlen(deviceName) == strlen(TELNET)) &&
(!strncmp(deviceName, TELNET, strlen(TELNET)))) {
consoleCB->isNonBlock = SetTelnetBlock(consoleCB);
/* set console to have a buffer for user */
(VOID)ConsoleTcGetAttr(consoleCB->fd, &consoleTermios);
consoleTermios.c_lflag |= ICANON | ECHO;
(VOID)ConsoleTcSetAttr(consoleCB->fd, 0, &consoleTermios);
}
#endif
}
STATIC INT32 OsConsoleFileInit(CONSOLE_CB *consoleCB)
{
INT32 ret;
struct inode *inode = NULL;
struct file *filep = NULL;
CHAR *fullpath = NULL;
struct inode_search_s desc;
ret = vfs_normalize_path(NULL, consoleCB->name, &fullpath);
if (ret < 0) {
return EINVAL;
}
SETUP_SEARCH(&desc, fullpath, false);
ret = inode_find(&desc);
if (ret < 0) {
ret = EACCES;
goto ERROUT_WITH_FULLPATH;
}
inode = desc.node;
consoleCB->fd = files_allocate(inode, O_RDWR, (off_t)0, consoleCB, STDERR_FILENO + 1);
if (consoleCB->fd < 0) {
ret = EMFILE;
goto ERROUT_WITH_INODE;
}
ret = fs_getfilep(consoleCB->fd, &filep);
if (ret < 0) {
ret = EPERM;
goto ERROUT_WITH_INODE;
}
filep->f_path = fullpath;
return LOS_OK;
ERROUT_WITH_INODE:
inode_release(inode);
ERROUT_WITH_FULLPATH:
free(fullpath);
return ret;
}
/*
* Initialized console control platform so that when we operate /dev/console
* as if we are operating /dev/ttyS0 (uart0).
*/
STATIC INT32 OsConsoleDevInit(CONSOLE_CB *consoleCB, const CHAR *deviceName)
{
INT32 ret;
CHAR *fullpath = NULL;
struct file *filep = NULL;
struct inode *inode = NULL;
struct inode_search_s desc;
/* allocate memory for filep,in order to unchange the value of filep */
filep = (struct file *)LOS_MemAlloc(m_aucSysMem0, sizeof(struct file));
if (filep == NULL) {
ret = ENOMEM;
goto ERROUT;
}
/* Adopt procedure of open function to allocate 'filep' to /dev/console */
ret = vfs_normalize_path(NULL, deviceName, &fullpath);
if (ret < 0) {
ret = EINVAL;
goto ERROUT_WITH_FILEP;
}
SETUP_SEARCH(&desc, fullpath, false);
ret = inode_find(&desc);
if (ret < 0) {
ret = EACCES;
goto ERROUT_WITH_FULLPATH;
}
inode = desc.node;
consoleCB->devInode = inode;
/*
* initialize the console filep which is associated with /dev/console,
* assign the uart0 inode of /dev/ttyS0 to console inod of /dev/console,
* then we can operate console's filep as if we operate uart0 filep of
* /dev/ttyS0.
*/
(VOID)memset_s(filep, sizeof(struct file), 0, sizeof(struct file));
filep->f_oflags = O_RDWR;
filep->f_pos = 0;
filep->f_inode = inode;
filep->f_path = NULL;
filep->f_priv = NULL;
if (inode->u.i_ops->open != NULL) {
(VOID)inode->u.i_ops->open(filep);
} else {
ret = EFAULT;
goto ERROUT_WITH_INODE;
}
/*
* Use filep to connect console and uart, we can find uart driver function throught filep.
* now we can operate /dev/console to operate /dev/ttyS0 through filep.
*/
ret = register_driver(consoleCB->name, &g_consoleDevOps, DEFFILEMODE, filep);
if (ret != LOS_OK) {
goto ERROUT_WITH_INODE;
}
inode_release(inode);
free(fullpath);
return LOS_OK;
ERROUT_WITH_INODE:
inode_release(inode);
ERROUT_WITH_FULLPATH:
free(fullpath);
ERROUT_WITH_FILEP:
(VOID)LOS_MemFree(m_aucSysMem0, filep);
ERROUT:
set_errno(ret);
return LOS_NOK;
}
STATIC UINT32 OsConsoleDevDeinit(const CONSOLE_CB *consoleCB)
{
INT32 ret;
struct file *filep = NULL;
struct inode *inode = NULL;
CHAR *fullpath = NULL;
struct inode_search_s desc;
ret = vfs_normalize_path(NULL, consoleCB->name, &fullpath);
if (ret < 0) {
ret = EINVAL;
goto ERROUT;
}
SETUP_SEARCH(&desc, fullpath, false);
ret = inode_find(&desc);
if (ret < 0) {
ret = EACCES;
goto ERROUT_WITH_FULLPATH;
}
inode = desc.node;
filep = inode->i_private;
if (filep != NULL) {
(VOID)LOS_MemFree(m_aucSysMem0, filep); /* free filep what you malloc from console_init */
inode->i_private = NULL;
} else {
ret = EBADF;
goto ERROUT_WITH_INODE;
}
inode_release(inode);
free(fullpath);
(VOID)unregister_driver(consoleCB->name);
return LOS_OK;
ERROUT_WITH_INODE:
inode_release(inode);
ERROUT_WITH_FULLPATH:
free(fullpath);
ERROUT:
set_errno(ret);
return LOS_NOK;
}
STATIC CirBufSendCB *ConsoleCirBufCreate(VOID)
{
UINT32 ret;
CHAR *fifo = NULL;
CirBufSendCB *cirBufSendCB = NULL;
CirBuf *cirBufCB = NULL;
cirBufSendCB = (CirBufSendCB *)LOS_MemAlloc(m_aucSysMem0, sizeof(CirBufSendCB));
if (cirBufSendCB == NULL) {
return NULL;
}
(VOID)memset_s(cirBufSendCB, sizeof(CirBufSendCB), 0, sizeof(CirBufSendCB));
fifo = (CHAR *)LOS_MemAlloc(m_aucSysMem0, TELNET_CIRBUF_SIZE);
if (fifo == NULL) {
goto ERROR_WITH_SENDCB;
}
(VOID)memset_s(fifo, TELNET_CIRBUF_SIZE, 0, TELNET_CIRBUF_SIZE);
cirBufCB = &cirBufSendCB->cirBufCB;
ret = LOS_CirBufInit(cirBufCB, fifo, TELNET_CIRBUF_SIZE);
if (ret != LOS_OK) {
goto ERROR_WITH_FIFO;
}
(VOID)LOS_EventInit(&cirBufSendCB->sendEvent);
return cirBufSendCB;
ERROR_WITH_FIFO:
(VOID)LOS_MemFree(m_aucSysMem0, cirBufCB->fifo);
ERROR_WITH_SENDCB:
(VOID)LOS_MemFree(m_aucSysMem0, cirBufSendCB);
return NULL;
}
STATIC VOID ConsoleCirBufDelete(CirBufSendCB *cirBufSendCB)
{
CirBuf *cirBufCB = &cirBufSendCB->cirBufCB;
(VOID)LOS_MemFree(m_aucSysMem0, cirBufCB->fifo);
LOS_CirBufDeinit(cirBufCB);
(VOID)LOS_EventDestroy(&cirBufSendCB->sendEvent);
(VOID)LOS_MemFree(m_aucSysMem0, cirBufSendCB);
}
STATIC UINT32 OsConsoleBufInit(CONSOLE_CB *consoleCB)
{
UINT32 ret;
TSK_INIT_PARAM_S initParam = {0};
consoleCB->cirBufSendCB = ConsoleCirBufCreate();
if (consoleCB->cirBufSendCB == NULL) {
return LOS_NOK;
}
initParam.pfnTaskEntry = (TSK_ENTRY_FUNC)ConsoleSendTask;
initParam.usTaskPrio = SHELL_TASK_PRIORITY;
initParam.auwArgs[0] = (UINTPTR)consoleCB;
initParam.uwStackSize = LOSCFG_BASE_CORE_TSK_DEFAULT_STACK_SIZE;
if (consoleCB->consoleID == CONSOLE_SERIAL) {
initParam.pcName = "SendToSer";
} else {
initParam.pcName = "SendToTelnet";
}
initParam.uwResved = LOS_TASK_STATUS_DETACHED;
ret = LOS_TaskCreate(&consoleCB->sendTaskID, &initParam);
if (ret != LOS_OK) {
ConsoleCirBufDelete(consoleCB->cirBufSendCB);
consoleCB->cirBufSendCB = NULL;
return LOS_NOK;
}
(VOID)LOS_EventRead(&consoleCB->cirBufSendCB->sendEvent, CONSOLE_SEND_TASK_RUNNING,
LOS_WAITMODE_OR | LOS_WAITMODE_CLR, LOS_WAIT_FOREVER);
return LOS_OK;
}
STATIC VOID OsConsoleBufDeinit(CONSOLE_CB *consoleCB)
{
CirBufSendCB *cirBufSendCB = consoleCB->cirBufSendCB;
consoleCB->cirBufSendCB = NULL;
(VOID)LOS_EventWrite(&cirBufSendCB->sendEvent, CONSOLE_SEND_TASK_EXIT);
}
STATIC CONSOLE_CB *OsConsoleCBInit(UINT32 consoleID)
{
CONSOLE_CB *consoleCB = (CONSOLE_CB *)LOS_MemAlloc((VOID *)m_aucSysMem0, sizeof(CONSOLE_CB));
if (consoleCB == NULL) {
return NULL;
}
(VOID)memset_s(consoleCB, sizeof(CONSOLE_CB), 0, sizeof(CONSOLE_CB));
consoleCB->consoleID = consoleID;
consoleCB->shellEntryId = SHELL_ENTRYID_INVALID; /* initialize shellEntryId to an invalid value */
consoleCB->name = LOS_MemAlloc((VOID *)m_aucSysMem0, CONSOLE_NAMELEN);
if (consoleCB->name == NULL) {
PRINT_ERR("consoleCB->name malloc failed\n");
(VOID)LOS_MemFree((VOID *)m_aucSysMem0, consoleCB);
return NULL;
}
return consoleCB;
}
STATIC VOID OsConsoleCBDeinit(CONSOLE_CB *consoleCB)
{
(VOID)LOS_MemFree((VOID *)m_aucSysMem0, consoleCB->name);
consoleCB->name = NULL;
(VOID)LOS_MemFree((VOID *)m_aucSysMem0, consoleCB);
}
STATIC CONSOLE_CB *OsConsoleCreate(UINT32 consoleID, const CHAR *deviceName)
{
INT32 ret;
CONSOLE_CB *consoleCB = OsConsoleCBInit(consoleID);
if (consoleCB == NULL) {
PRINT_ERR("console malloc error.\n");
return NULL;
}
ret = snprintf_s(consoleCB->name, CONSOLE_NAMELEN, CONSOLE_NAMELEN - 1,
"%s%u", CONSOLE, consoleCB->consoleID);
if (ret == -1) {
PRINT_ERR("consoleCB->name snprintf_s failed\n");
goto ERR_WITH_NAME;
}
ret = (INT32)OsConsoleBufInit(consoleCB);
if (ret != LOS_OK) {
goto ERR_WITH_NAME;
}
ret = (INT32)LOS_SemCreate(1, &consoleCB->consoleSem);
if (ret != LOS_OK) {
PRINT_ERR("creat sem for uart failed\n");
goto ERR_WITH_BUF;
}
ret = OsConsoleDevInit(consoleCB, deviceName);
if (ret != LOS_OK) {
goto ERR_WITH_SEM;
}
ret = OsConsoleFileInit(consoleCB);
if (ret != LOS_OK) {
goto ERR_WITH_DEV;
}
OsConsoleTermiosInit(consoleCB, deviceName);
return consoleCB;
ERR_WITH_DEV:
ret = (INT32)OsConsoleDevDeinit(consoleCB);
if (ret != LOS_OK) {
PRINT_ERR("OsConsoleDevDeinit failed!\n");
}
ERR_WITH_SEM:
(VOID)LOS_SemDelete(consoleCB->consoleSem);
ERR_WITH_BUF:
OsConsoleBufDeinit(consoleCB);
ERR_WITH_NAME:
OsConsoleCBDeinit(consoleCB);
return NULL;
}
STATIC UINT32 OsConsoleDelete(CONSOLE_CB *consoleCB)
{
UINT32 ret;
(VOID)files_close(consoleCB->fd);
ret = OsConsoleDevDeinit(consoleCB);
if (ret != LOS_OK) {
PRINT_ERR("OsConsoleDevDeinit failed!\n");
}
OsConsoleBufDeinit((CONSOLE_CB *)consoleCB);
(VOID)LOS_SemDelete(consoleCB->consoleSem);
(VOID)LOS_MemFree(m_aucSysMem0, consoleCB->name);
consoleCB->name = NULL;
(VOID)LOS_MemFree(m_aucSysMem0, consoleCB);
return ret;
}
/* Initialized system console and return stdinfd stdoutfd stderrfd */
INT32 system_console_init(const CHAR *deviceName)
{
#ifdef LOSCFG_SHELL
UINT32 ret;
#endif
INT32 consoleID;
UINT32 intSave;
CONSOLE_CB *consoleCB = NULL;
consoleID = OsGetConsoleID(deviceName);
if (consoleID == -1) {
PRINT_ERR("device is full.\n");
return VFS_ERROR;
}
consoleCB = OsConsoleCreate((UINT32)consoleID, deviceName);
if (consoleCB == NULL) {
PRINT_ERR("%s, %d\n", __FUNCTION__, __LINE__);
return VFS_ERROR;
}
LOS_SpinLockSave(&g_consoleSpin, &intSave);
g_console[consoleID - 1] = consoleCB;
if (OsCurrTaskGet() != NULL) {
g_taskConsoleIDArray[OsCurrTaskGet()->taskID] = (UINT8)consoleID;
}
LOS_SpinUnlockRestore(&g_consoleSpin, intSave);
#ifdef LOSCFG_SHELL
ret = OsShellInit(consoleID);
if (ret != LOS_OK) {
PRINT_ERR("%s, %d\n", __FUNCTION__, __LINE__);
LOS_SpinLockSave(&g_consoleSpin, &intSave);
(VOID)OsConsoleDelete(consoleCB);
g_console[consoleID - 1] = NULL;
g_taskConsoleIDArray[OsCurrTaskGet()->taskID] = 0;
LOS_SpinUnlockRestore(&g_consoleSpin, intSave);
return VFS_ERROR;
}
#endif
return ENOERR;
}
INT32 system_console_deinit(const CHAR *deviceName)
{
UINT32 ret;
CONSOLE_CB *consoleCB = NULL;
UINT32 taskIdx;
LosTaskCB *taskCB = NULL;
UINT32 intSave;
consoleCB = OsGetConsoleByDevice(deviceName);
if (consoleCB == NULL) {
return VFS_ERROR;
}
#ifdef LOSCFG_SHELL
(VOID)OsShellDeinit((INT32)consoleCB->consoleID);
#endif
LOS_SpinLockSave(&g_consoleSpin, &intSave);
/* Redirect all tasks to serial as telnet was unavailable after deinitializing */
for (taskIdx = 0; taskIdx < g_taskMaxNum; taskIdx++) {
taskCB = ((LosTaskCB *)g_taskCBArray) + taskIdx;
if (OsTaskIsUnused(taskCB)) {
continue;
} else {
g_taskConsoleIDArray[taskCB->taskID] = CONSOLE_SERIAL;
}
}
g_console[consoleCB->consoleID - 1] = NULL;
LOS_SpinUnlockRestore(&g_consoleSpin, intSave);
ret = OsConsoleDelete(consoleCB);
if (ret != LOS_OK) {
PRINT_ERR("%s, Failed to system_console_deinit\n", __FUNCTION__);
return VFS_ERROR;
}
return ENOERR;
}
BOOL ConsoleEnable(VOID)
{
INT32 consoleID;
if (OsCurrTaskGet() != NULL) {
consoleID = g_taskConsoleIDArray[OsCurrTaskGet()->taskID];
if (g_uart_fputc_en == 0) {
if ((g_console[CONSOLE_TELNET - 1] != NULL) && OsPreemptable()) {
return TRUE;
} else {
return FALSE;
}
}
if (consoleID == 0) {
return FALSE;
} else if ((consoleID == CONSOLE_TELNET) || (consoleID == CONSOLE_SERIAL)) {
if ((OsGetSystemStatus() == OS_SYSTEM_NORMAL) && !OsPreemptable()) {
return FALSE;
}
return TRUE;
}
#if defined (LOSCFG_DRIVERS_USB_SERIAL_GADGET) || defined (LOSCFG_DRIVERS_USB_ETH_SER_GADGET)
else if ((SerialTypeGet() == SERIAL_TYPE_USBTTY_DEV) && (userial_mask_get() == 1)) {
return TRUE;
}
#endif
}
return FALSE;
}
INT32 ConsoleTaskReg(INT32 consoleID, UINT32 taskID)
{
if (g_console[consoleID - 1]->shellEntryId == SHELL_ENTRYID_INVALID) {
g_console[consoleID - 1]->shellEntryId = taskID;
(VOID)OsSetCurrProcessGroupID(OsGetUserInitProcessID());
return LOS_OK;
}
return LOS_NOK;
}
BOOL SetSerialNonBlock(const CONSOLE_CB *consoleCB)
{
INT32 ret;
if (consoleCB == NULL) {
PRINT_ERR("%s: Input parameter is illegal\n", __FUNCTION__);
return FALSE;
}
ret = ioctl(consoleCB->fd, CONSOLE_CMD_RD_BLOCK_SERIAL, CONSOLE_RD_NONBLOCK);
if (ret != 0) {
return FALSE;
}
return TRUE;
}
BOOL SetSerialBlock(const CONSOLE_CB *consoleCB)
{
INT32 ret;
if (consoleCB == NULL) {
PRINT_ERR("%s: Input parameter is illegal\n", __FUNCTION__);
return TRUE;
}
ret = ioctl(consoleCB->fd, CONSOLE_CMD_RD_BLOCK_SERIAL, CONSOLE_RD_BLOCK);
if (ret != 0) {
return TRUE;
}
return FALSE;
}
BOOL SetTelnetNonBlock(const CONSOLE_CB *consoleCB)
{
INT32 ret;
if (consoleCB == NULL) {
PRINT_ERR("%s: Input parameter is illegal\n", __FUNCTION__);
return FALSE;
}
ret = ioctl(consoleCB->fd, CONSOLE_CMD_RD_BLOCK_TELNET, CONSOLE_RD_NONBLOCK);
if (ret != 0) {
return FALSE;
}
return TRUE;
}
BOOL SetTelnetBlock(const CONSOLE_CB *consoleCB)
{
INT32 ret;
if (consoleCB == NULL) {
PRINT_ERR("%s: Input parameter is illegal\n", __FUNCTION__);
return TRUE;
}
ret = ioctl(consoleCB->fd, CONSOLE_CMD_RD_BLOCK_TELNET, CONSOLE_RD_BLOCK);
if (ret != 0) {
return TRUE;
}
return FALSE;
}
BOOL is_nonblock(const CONSOLE_CB *consoleCB)
{
if (consoleCB == NULL) {
PRINT_ERR("%s: Input parameter is illegal\n", __FUNCTION__);
return FALSE;
}
return consoleCB->isNonBlock;
}
INT32 ConsoleUpdateFd(VOID)
{
INT32 consoleID;
if (OsCurrTaskGet() != NULL) {
consoleID = g_taskConsoleIDArray[(OsCurrTaskGet())->taskID];
} else {
return -1;
}
if (g_uart_fputc_en == 0) {
if (g_console[CONSOLE_TELNET - 1] != NULL) {
consoleID = CONSOLE_TELNET;
} else {
return -1;
}
} else if (consoleID == 0) {
if (g_console[CONSOLE_SERIAL - 1] != NULL) {
consoleID = CONSOLE_SERIAL;
} else if (g_console[CONSOLE_TELNET - 1] != NULL) {
consoleID = CONSOLE_TELNET;
} else {
PRINT_ERR("No console dev used.\n");
return -1;
}
}
if (g_console[consoleID - 1] == NULL) {
return -1;
}
return g_console[consoleID - 1]->fd;
}
CONSOLE_CB *OsGetConsoleByID(INT32 consoleID)
{
if (consoleID != CONSOLE_TELNET) {
consoleID = CONSOLE_SERIAL;
}
return g_console[consoleID - 1];
}
CONSOLE_CB *OsGetConsoleByTaskID(UINT32 taskID)
{
INT32 consoleID = g_taskConsoleIDArray[taskID];
return OsGetConsoleByID(consoleID);
}
VOID OsSetConsoleID(UINT32 newTaskID, UINT32 curTaskID)
{
if ((newTaskID >= LOSCFG_BASE_CORE_TSK_LIMIT) || (curTaskID >= LOSCFG_BASE_CORE_TSK_LIMIT)) {
return;
}
g_taskConsoleIDArray[newTaskID] = g_taskConsoleIDArray[curTaskID];
}
STATIC ssize_t WriteToTerminal(const CONSOLE_CB *consoleCB, const CHAR *buffer, size_t bufLen)
{
INT32 ret, fd;
INT32 cnt = 0;
struct file *privFilep = NULL;
struct file *filep = NULL;
const struct file_operations_vfs *fileOps = NULL;
fd = consoleCB->fd;
ret = fs_getfilep(fd, &filep);
ret = GetFilepOps(filep, &privFilep, &fileOps);
if ((fileOps == NULL) || (fileOps->write == NULL)) {
ret = EFAULT;
goto ERROUT;
}
(VOID)fileOps->write(privFilep, buffer, bufLen);
return cnt;
ERROUT:
set_errno(ret);
return VFS_ERROR;
}
STATIC UINT32 ConsoleSendTask(UINTPTR param)
{
CONSOLE_CB *consoleCB = (CONSOLE_CB *)param;
CirBufSendCB *cirBufSendCB = consoleCB->cirBufSendCB;
CirBuf *cirBufCB = &cirBufSendCB->cirBufCB;
UINT32 ret, size;
UINT32 intSave;
CHAR *buf = NULL;
(VOID)LOS_EventWrite(&cirBufSendCB->sendEvent, CONSOLE_SEND_TASK_RUNNING);
while (1) {
ret = LOS_EventRead(&cirBufSendCB->sendEvent, CONSOLE_CIRBUF_EVENT | CONSOLE_SEND_TASK_EXIT,
LOS_WAITMODE_OR | LOS_WAITMODE_CLR, LOS_WAIT_FOREVER);
if (ret == CONSOLE_CIRBUF_EVENT) {
size = LOS_CirBufUsedSize(cirBufCB);
if (size == 0) {
continue;
}
buf = (CHAR *)LOS_MemAlloc(m_aucSysMem1, size + 1);
if (buf == NULL) {
continue;
}
(VOID)memset_s(buf, size + 1, 0, size + 1);
LOS_CirBufLock(cirBufCB, &intSave);
(VOID)LOS_CirBufRead(cirBufCB, buf, size);
LOS_CirBufUnlock(cirBufCB, intSave);
(VOID)WriteToTerminal(consoleCB, buf, size);
(VOID)LOS_MemFree(m_aucSysMem1, buf);
} else if (ret == CONSOLE_SEND_TASK_EXIT) {
break;
}
}
ConsoleCirBufDelete(cirBufSendCB);
return LOS_OK;
}
#if (LOSCFG_KERNEL_SMP == YES)
VOID OsWaitConsoleSendTaskPend(UINT32 taskID)
{
UINT32 i;
CONSOLE_CB *console = NULL;
LosTaskCB *taskCB = NULL;
for (i = 0; i < CONSOLE_NUM; i++) {
console = g_console[i];
if (console == NULL) {
continue;
}
if (OS_TID_CHECK_INVALID(console->sendTaskID)) {
continue;
}
taskCB = OS_TCB_FROM_TID(console->sendTaskID);
while ((taskCB->taskEvent == NULL) && (taskID != console->sendTaskID)) {
LOS_Mdelay(1); /* 1: wait console task pend */
}
}
}
VOID OsWakeConsoleSendTask(VOID)
{
UINT32 i;
CONSOLE_CB *console = NULL;
for (i = 0; i < CONSOLE_NUM; i++) {
console = g_console[i];
if (console == NULL) {
continue;
}
if (console->cirBufSendCB != NULL) {
(VOID)LOS_EventWrite(&console->cirBufSendCB->sendEvent, CONSOLE_CIRBUF_EVENT);
}
}
}
#endif
#ifdef __cplusplus
#if __cplusplus
}
#endif /* __cplusplus */
#endif /* __cplusplus */
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