Linux custom baudrate

src/main/c/Makefile

@@ -164,8 +164,8 @@ arm32v7:
 
 # Requires gcc-arm-linux-gnueabihf.
 arm32v7HF: export CC := arm-linux-gnueabihf-gcc
-arm32v7HF: export CFLAGS += $(LINUX_CFLAGS) -march=armv7-a
-arm32v7HF: export LDFLAGS += -march=armv7-a
+arm32v7HF: export CFLAGS += $(LINUX_CFLAGS) -march=armv7-a+fp
+arm32v7HF: export LDFLAGS += -march=armv7-a+fp
 arm32v7HF: export platform := linux/ARM_32
 arm32v7HF: export variant := v7_HF
 arm32v7HF:
@@ -182,8 +182,8 @@ arm32v8:
 
 # Requires gcc-arm-linux-gnueabihf.
 arm32v8HF: export CC := arm-linux-gnueabihf-gcc
-arm32v8HF: export CFLAGS += $(LINUX_CFLAGS) -march=armv8-a
-arm32v8HF: export LDFLAGS += -march=armv8-a
+arm32v8HF: export CFLAGS += $(LINUX_CFLAGS) -march=armv8-a+simd
+arm32v8HF: export LDFLAGS += -march=armv8-a+simd
 arm32v8HF: export platform := linux/ARM_32
 arm32v8HF: export variant := v8_HF
 arm32v8HF:

src/main/c/include/termbits2.h

@@ -0,0 +1,166 @@
+/*
+ * termbits2.c
+ *
+ * Stuff that we should include from kernel sources, if we could; but
+ * we can't. Included from "termios2.h"
+ *
+ * by Nick Patavalis ([email protected])
+ *
+ * ATTENTION: Linux-specific kludge!
+ *
+ * This program is free software; you can redistribute it and/or
+ * modify it under the terms of the GNU General Public License as
+ * published by the Free Software Foundation; either version 2 of the
+ * License, or (at your option) any later version.
+ *
+ * This program is distributed in the hope that it will be useful, but
+ * WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
+ * General Public License for more details.
+ *
+ * You should have received a copy of the GNU General Public License
+ * along with this program; if not, write to the Free Software
+ * Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307
+ * USA
+ */
+
+#ifndef TERMBITS2_H
+#define TERMBITS2_H
+
+#ifndef __linux__
+#error "Linux specific code!"
+#endif
+
+/* We need tcflag_t, cc_t, speed_t, CBAUDEX, etc */
+#include <termios.h>
+
+/* These definitions must correspond to the kernel structures as
+   defined in:
+
+     <linux-kernel>/arch/<arch>/include/uapi/asm/termbits.h
+     or <linux-kernel>/include/uapi/asm-generic/termbits.h
+
+   which are the same as:
+
+     /usr/include/<arch>/asm/termbits.h
+     or /usr/include/asm-generic/termbits.h
+
+  Unfortunatelly, we cannot just include <asm/termbits.h> or
+  <asm/termios.h> or <linux/termios.h> (all would do the trick)
+  because then "struct termios" would be re-defined to the kernel
+  version, which is not the same as the libc version. In effect, you
+  cannot both include <termios.h> and <linux/termios.h> because both
+  define a "struct termios" which may or maynot be the same. We want
+  our "struct termios" here to be the libc version (as defined in
+  <termios.h>), because that's what our callers use. As a result we
+  cannot get the definion of "struct termios2" from the above header
+  files, since this would also bring-in the clashing definition of the
+  kernel version of "struct termios". If you have an idea for a better
+  way out of this mess, I would REALLY like to hear it.
+
+  I hope that soon GLIBC will pick-up termios2 and all these will be
+  useless. Until then ...
+
+  ATTENTION: For most architectures "struct termios2" and the
+  associated constants we care about (NCCS, BOTHER, IBSHIFT) are the
+  same. For some there are small differences, and some architectures
+  do not support termios2 at all. I don't claim to have done a
+  thorough job figuring out the specifics for every architecture, so
+  your milleage may vary. In any case, if you want support for
+  something that's missing, just copy the relevant definitions from
+  the kernel header file in here, recompile, test, and send me a
+  patch. */
+
+#if defined (__alpha__)
+
+#error "Architecure has no termios2 support"
+
+
+#elif defined (__powerpc__) || defined (__powerpc64__)
+
+#define K_NCCS 19
+/* The "old" termios is the same with termios2 for powerpc's */
+struct termios2 {
+        tcflag_t c_iflag;               /* input mode flags */
+        tcflag_t c_oflag;               /* output mode flags */
+        tcflag_t c_cflag;               /* control mode flags */
+        tcflag_t c_lflag;               /* local mode flags */
+        cc_t c_cc[K_NCCS];              /* control characters */
+        cc_t c_line;                    /* line discipline */
+        speed_t c_ispeed;               /* input speed */
+        speed_t c_ospeed;               /* output speed */
+};
+
+#define BOTHER 00037
+#define IBSHIFT 16
+
+/* powerpc ioctl numbers have the argument-size encoded. Make sure we
+   use the correct structure (i.e. kernel termios, not LIBC termios)
+   when calculating them. */
+#define IOCTL_SETS  _IOW('t', 20, struct termios2)
+#define IOCTL_SETSW _IOW('t', 21, struct termios2)
+#define IOCTL_SETSF _IOW('t', 22, struct termios2)
+#define IOCTL_GETS  _IOR('t', 19, struct termios2)
+
+
+#elif defined (__mips__)
+
+#define K_NCCS 23
+struct termios2 {
+        tcflag_t c_iflag;               /* input mode flags */
+        tcflag_t c_oflag;               /* output mode flags */
+        tcflag_t c_cflag;               /* control mode flags */
+        tcflag_t c_lflag;               /* local mode flags */
+        cc_t c_line;                    /* line discipline */
+        cc_t c_cc[K_NCCS];              /* control characters */
+        speed_t c_ispeed;               /* input speed */
+        speed_t c_ospeed;               /* output speed */
+};
+
+#define BOTHER  CBAUDEX
+#define IBSHIFT 16
+
+#define IOCTL_SETS TCSETS2
+#define IOCTL_SETSW TCSETSW2
+#define IOCTL_SETSF TCSETSF2
+#define IOCTL_GETS TCGETS2
+
+
+#else /* All others */
+
+#define K_NCCS 19
+struct termios2 {
+        tcflag_t c_iflag;               /* input mode flags */
+        tcflag_t c_oflag;               /* output mode flags */
+        tcflag_t c_cflag;               /* control mode flags */
+        tcflag_t c_lflag;               /* local mode flags */
+        cc_t c_line;                    /* line discipline */
+        cc_t c_cc[K_NCCS];              /* control characters */
+        speed_t c_ispeed;               /* input speed */
+        speed_t c_ospeed;               /* output speed */
+};
+
+#define BOTHER CBAUDEX
+#define IBSHIFT 16
+
+#define IOCTL_SETS TCSETS2
+#define IOCTL_SETSW TCSETSW2
+#define IOCTL_SETSF TCSETSF2
+#define IOCTL_GETS TCGETS2
+
+#endif /* of architectures */
+
+/***************************************************************************/
+
+#endif /* of TERMBITS2_H */
+
+/***************************************************************************/
+
+/*
+ * Local Variables:
+ * mode:c
+ * tab-width: 4
+ * c-basic-offset: 4
+ * indent-tabs-mode: nil
+ * End:
+ */