From a531683ae99448696a29127a056e126493fe1e37 Mon Sep 17 00:00:00 2001
From: Joel Sherrill <joel.sherrill@oarcorp.com>
Date: Fri, 18 Apr 2014 10:52:21 -0500
Subject: shsim: Add printk() support and move all code to console subdirectory

---
 .../lib/libbsp/sh/shsim/console/console-debugio.c  | 36 +++++++++++
 c/src/lib/libbsp/sh/shsim/console/console-io.c     | 72 ++++++++++++++++++++++
 .../lib/libbsp/sh/shsim/console/console-support.S  | 18 ++++++
 3 files changed, 126 insertions(+)
 create mode 100644 c/src/lib/libbsp/sh/shsim/console/console-debugio.c
 create mode 100644 c/src/lib/libbsp/sh/shsim/console/console-io.c
 create mode 100644 c/src/lib/libbsp/sh/shsim/console/console-support.S

(limited to 'c/src/lib/libbsp/sh/shsim/console')

diff --git a/c/src/lib/libbsp/sh/shsim/console/console-debugio.c b/c/src/lib/libbsp/sh/shsim/console/console-debugio.c
new file mode 100644
index 0000000000..38b6c8f698
--- /dev/null
+++ b/c/src/lib/libbsp/sh/shsim/console/console-debugio.c
@@ -0,0 +1,36 @@
+/**
+ *  @file
+ *  @brief Stub printk() support
+ *
+ *  This file contains a stub for the required printk() support.
+ *  It is NOT functional!!!
+ */
+
+/*
+ *  COPYRIGHT (c) 1989-2014.
+ *  On-Line Applications Research Corporation (OAR).
+ *
+ *  The license and distribution terms for this file may be
+ *  found in the file LICENSE in this distribution or at
+ *  http://www.rtems.org/license/LICENSE.
+ */
+
+/*
+ *  To support printk
+ */
+
+#include <rtems.h>
+#include <rtems/bspIo.h>
+
+void console_outbyte_polled(
+  int  port,
+  char ch
+);
+
+void BSP_output_char_f(char c)
+{
+  console_outbyte_polled( 0, c );
+}
+
+BSP_output_char_function_type           BSP_output_char = BSP_output_char_f;
+BSP_polling_getchar_function_type       BSP_poll_char = NULL;
diff --git a/c/src/lib/libbsp/sh/shsim/console/console-io.c b/c/src/lib/libbsp/sh/shsim/console/console-io.c
new file mode 100644
index 0000000000..b327192d5d
--- /dev/null
+++ b/c/src/lib/libbsp/sh/shsim/console/console-io.c
@@ -0,0 +1,72 @@
+/*
+ *  This file contains the hardware specific portions of the TTY driver
+ *  for the simulators stdin/out.
+ *
+ *  Logic based on newlib-1.8.2/newlib/libc/sys/sh/syscalls.c
+ *
+ *  COPYRIGHT (c) 1989-2011.
+ *  On-Line Applications Research Corporation (OAR).
+ *
+ *  The license and distribution terms for this file may be
+ *  found in the file LICENSE in this distribution or at
+ *  http://www.rtems.org/license/LICENSE.
+ */
+
+#include <bsp.h>
+#include <rtems/libio.h>
+#include <stdlib.h>
+#include <assert.h>
+
+#include <bsp/syscall.h>
+
+int errno;
+
+extern int __trap34(int, int, void*, int );
+
+/*
+ *  console_initialize_hardware
+ *
+ *  This routine initializes the console hardware.
+ *
+ */
+
+void console_initialize_hardware(void)
+{
+  return;
+}
+
+/*
+ *  console_outbyte_polled
+ *
+ *  This routine transmits a character using polling.
+ */
+
+void console_outbyte_polled(
+  int  port,
+  char ch
+)
+{
+  __trap34 (SYS_write, 1, &ch, 1);
+  return;
+}
+
+/*
+ *  console_inbyte_nonblocking
+ *
+ *  This routine polls for a character.
+ */
+
+int console_inbyte_nonblocking(
+  int port
+)
+{
+  unsigned char c;
+
+  return __trap34 (SYS_read, 0, &c, 1);
+}
+
+/* XXX wrong place for this */
+int _sys_exit (int n)
+{
+  return __trap34 (SYS_exit, n, 0, 0);
+}
diff --git a/c/src/lib/libbsp/sh/shsim/console/console-support.S b/c/src/lib/libbsp/sh/shsim/console/console-support.S
new file mode 100644
index 0000000000..63f72f794b
--- /dev/null
+++ b/c/src/lib/libbsp/sh/shsim/console/console-support.S
@@ -0,0 +1,18 @@
+/*
+ *  newlib-1.8.2/newlib/libc/sys/sh/trap.S
+ */
+        .text
+        .global ___trap34
+___trap34:
+        trapa   #34
+        tst     r1,r1   ! r1 is errno
+        bt      ret
+        mov.l   perrno,r2
+        mov.l   r1,@r2
+ret:
+        rts
+        nop
+
+        .align  2
+perrno:
+        .long   _errno
-- 
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