[libc][posix] create 'posix' folder and move related files into it

3 files changed, 355 insertions, 0 deletions

diff --git a/components/libc/posix/termios/SConscript b/components/libc/posix/termios/SConscript
new file mode 100644
index 0000000000..381eb5ad8b
--- /dev/null
+++ b/components/libc/posix/termios/SConscript
@@ -0,0 +1,13 @@
+# RT-Thread building script for component
+
+from building import *
+
+cwd = GetCurrentDir()
+src = Glob('*.c') + Glob('*.cpp')
+CPPPATH = [cwd]
+
+group = DefineGroup('libc', src, 
+    depend = ['RT_USING_LIBC', 'RT_USING_POSIX', 'RT_USING_POSIX_TERMIOS'], 
+    CPPPATH = CPPPATH)
+
+Return('group')
diff --git a/components/libc/posix/termios/posix_termios.c b/components/libc/posix/termios/posix_termios.c
new file mode 100644
index 0000000000..9f33c857e6
--- /dev/null
+++ b/components/libc/posix/termios/posix_termios.c
@@ -0,0 +1,129 @@
+/*
+ * Copyright (c) 2006-2021, RT-Thread Development Team
+ *
+ * SPDX-License-Identifier: Apache-2.0
+ *
+ * Change Logs:
+ * Date           Author       Notes
+ * 2017/08/30     Bernard      The first version
+ */
+#include <stdlib.h>
+#include <string.h>
+#include <dfs_posix.h>
+#include <sys/errno.h>
+#include <termios.h>
+
+int tcgetattr(int fd, struct termios *tio)
+{
+    /* Get the current serial port settings. */
+    if (ioctl(fd, TCGETA, tio))
+        return -1;
+
+    return 0;
+}
+
+int tcsetattr(int fd, int act, const struct termios *tio)
+{
+    switch (act)
+    {
+    case TCSANOW:
+        /* make the change immediately */
+        return (ioctl(fd, TCSETA, (void*)tio));
+    case TCSADRAIN:
+        /*
+         * Don't make the change until all currently written data
+         * has been transmitted.
+         */
+        return (ioctl(fd, TCSETAW, (void*)tio));
+    case TCSAFLUSH:
+        /* Don't make the change until all currently written data
+         * has been transmitted, at which point any received but
+         * unread data is also discarded.
+         */
+        return (ioctl(fd, TCSETAF, (void*)tio));
+    default:
+        errno = EINVAL;
+        return (-1);
+    }
+}
+
+/**
+ * this function gets process group ID for session leader for controlling
+ * terminal
+ *
+ * @return always 0
+ */
+pid_t tcgetsid(int fd)
+{
+    return 0;
+}
+
+speed_t cfgetospeed(const struct termios *tio)
+{
+    return tio->c_cflag & CBAUD;
+}
+
+speed_t cfgetispeed(const struct termios *tio)
+{
+    return cfgetospeed(tio);
+}
+
+int cfsetospeed(struct termios *tio, speed_t speed)
+{
+    if (speed & ~CBAUD)
+    {
+        errno = EINVAL;
+        return -1;
+    }
+
+    tio->c_cflag &= ~CBAUD;
+    tio->c_cflag |= speed;
+    return 0;
+}
+
+int cfsetispeed(struct termios *tio, speed_t speed)
+{
+    return speed ? cfsetospeed(tio, speed) : 0;
+}
+
+int tcsendbreak(int fd, int dur)
+{
+    /* nonzero duration is implementation-defined, so ignore it */
+    return 0;
+}
+
+int tcflush(int fd, int queue)
+{
+    return ioctl(fd, TCFLSH, (void*)queue);
+}
+
+int tcflow(int fd, int action)
+{
+    return ioctl(fd, TCXONC, (void*)action);
+}
+
+/**
+ * this function waits for transmission of output
+ */
+int tcdrain(int fd)
+{
+    return 0;
+}
+
+#if defined(_GNU_SOURCE) || defined(_BSD_SOURCE)
+void cfmakeraw(struct termios *t)
+{
+    t->c_iflag &= ~(IGNBRK|BRKINT|PARMRK|ISTRIP|INLCR|IGNCR|ICRNL|IXON);
+    t->c_oflag &= ~OPOST;
+    t->c_lflag &= ~(ECHO|ECHONL|ICANON|ISIG|IEXTEN);
+    t->c_cflag &= ~(CSIZE|PARENB);
+    t->c_cflag |= CS8;
+    t->c_cc[VMIN] = 1;
+    t->c_cc[VTIME] = 0;
+}
+
+int cfsetspeed(struct termios *tio, speed_t speed)
+{
+    return cfsetospeed(tio, speed);
+}
+#endif
diff --git a/components/libc/posix/termios/posix_termios.h b/components/libc/posix/termios/posix_termios.h
new file mode 100644
index 0000000000..6dc5531955
--- /dev/null
+++ b/components/libc/posix/termios/posix_termios.h
@@ -0,0 +1,213 @@
+/*
+ * Copyright (c) 2006-2021, RT-Thread Development Team
+ *
+ * SPDX-License-Identifier: Apache-2.0
+ *
+ * Change Logs:
+ * Date           Author       Notes
+ * 2017/08/30     Bernard      The first version
+ */
+#ifndef TERMIOS_H__
+#define TERMIOS_H__
+
+#include <sys/types.h>
+#include <sys/ioctl.h>
+
+#ifdef __cplusplus
+extern "C" {
+#endif
+
+typedef unsigned char cc_t;
+typedef unsigned int speed_t;
+typedef unsigned int tcflag_t;
+
+#define NCCS 32
+
+struct termios {
+    tcflag_t c_iflag;
+    tcflag_t c_oflag;
+    tcflag_t c_cflag;
+    tcflag_t c_lflag;
+    cc_t c_line;
+    cc_t c_cc[NCCS];
+    speed_t __c_ispeed;
+    speed_t __c_ospeed;
+};
+
+#define VINTR     0
+#define VQUIT     1
+#define VERASE    2
+#define VKILL     3
+#define VEOF      4
+#define VTIME     5
+#define VMIN      6
+#define VSWTC     7
+#define VSTART    8
+#define VSTOP     9
+#define VSUSP    10
+#define VEOL     11
+#define VREPRINT 12
+#define VDISCARD 13
+#define VWERASE  14
+#define VLNEXT   15
+#define VEOL2    16
+
+#define IGNBRK  0000001
+#define BRKINT  0000002
+#define IGNPAR  0000004
+#define PARMRK  0000010
+#define INPCK   0000020
+#define ISTRIP  0000040
+#define INLCR   0000100
+#define IGNCR   0000200
+#define ICRNL   0000400
+#define IUCLC   0001000
+#define IXON    0002000
+#define IXANY   0004000
+#define IXOFF   0010000
+#define IMAXBEL 0020000
+#define IUTF8   0040000
+
+#define OPOST  0000001
+#define OLCUC  0000002
+#define ONLCR  0000004
+#define OCRNL  0000010
+#define ONOCR  0000020
+#define ONLRET 0000040
+#define OFILL  0000100
+#define OFDEL  0000200
+#define NLDLY  0000400
+#define NL0    0000000
+#define NL1    0000400
+#define CRDLY  0003000
+#define CR0    0000000
+#define CR1    0001000
+#define CR2    0002000
+#define CR3    0003000
+#define TABDLY 0014000
+#define TAB0   0000000
+#define TAB1   0004000
+#define TAB2   0010000
+#define TAB3   0014000
+#define BSDLY  0020000
+#define BS0    0000000
+#define BS1    0020000
+#define FFDLY  0100000
+#define FF0    0000000
+#define FF1    0100000
+
+#define VTDLY  0040000
+#define VT0    0000000
+#define VT1    0040000
+
+#define B0       0000000
+#define B50      0000001
+#define B75      0000002
+#define B110     0000003
+#define B134     0000004
+#define B150     0000005
+#define B200     0000006
+#define B300     0000007
+#define B600     0000010
+#define B1200    0000011
+#define B1800    0000012
+#define B2400    0000013
+#define B4800    0000014
+#define B9600    0000015
+#define B19200   0000016
+#define B38400   0000017
+
+#define B57600   0010001
+#define B115200  0010002
+#define B230400  0010003
+#define B460800  0010004
+#define B500000  0010005
+#define B576000  0010006
+#define B921600  0010007
+#define B1000000 0010010
+#define B1152000 0010011
+#define B1500000 0010012
+#define B2000000 0010013
+#define B2500000 0010014
+#define B3000000 0010015
+#define B3500000 0010016
+#define B4000000 0010017
+
+#define CSIZE  0000060
+#define CS5    0000000
+#define CS6    0000020
+#define CS7    0000040
+#define CS8    0000060
+#define CSTOPB 0000100
+#define CREAD  0000200
+#define PARENB 0000400
+#define PARODD 0001000
+#define HUPCL  0002000
+#define CLOCAL 0004000
+
+#define ISIG   0000001
+#define ICANON 0000002
+#define ECHO   0000010
+#define ECHOE  0000020
+#define ECHOK  0000040
+#define ECHONL 0000100
+#define NOFLSH 0000200
+#define TOSTOP 0000400
+#define IEXTEN 0100000
+
+#define TCOOFF 0
+#define TCOON  1
+#define TCIOFF 2
+#define TCION  3
+
+#define TCIFLUSH  0
+#define TCOFLUSH  1
+#define TCIOFLUSH 2
+
+#define TCSANOW   0
+#define TCSADRAIN 1
+#define TCSAFLUSH 2
+
+#define EXTA    0000016
+#define EXTB    0000017
+#define CBAUD   0010017
+#define CBAUDEX 0010000
+#define CIBAUD  002003600000
+#define CMSPAR  010000000000
+#define CRTSCTS 020000000000
+
+#define XCASE   0000004
+#define ECHOCTL 0001000
+#define ECHOPRT 0002000
+#define ECHOKE  0004000
+#define FLUSHO  0010000
+#define PENDIN  0040000
+#define EXTPROC 0200000
+
+#define XTABS  0014000
+
+speed_t cfgetospeed (const struct termios *);
+speed_t cfgetispeed (const struct termios *);
+int cfsetospeed (struct termios *, speed_t);
+int cfsetispeed (struct termios *, speed_t);
+
+int tcgetattr (int, struct termios *);
+int tcsetattr (int, int, const struct termios *);
+
+int tcsendbreak (int, int);
+int tcdrain (int);
+int tcflush (int, int);
+int tcflow (int, int);
+
+pid_t tcgetsid (int);
+
+#if defined(_GNU_SOURCE) || defined(_BSD_SOURCE)
+void cfmakeraw(struct termios *);
+int cfsetspeed(struct termios *, speed_t);
+#endif
+
+#ifdef __cplusplus
+}
+#endif
+
+#endif