bsps: Move console drivers to bsps

This patch is a part of the BSP source reorganization.

Update #3285.

1 files changed, 104 insertions, 0 deletions

diff --git a/bsps/epiphany/epiphany_sim/console/console-io.c b/bsps/epiphany/epiphany_sim/console/console-io.c
new file mode 100644
index 0000000000..e3da54389f
--- /dev/null
+++ b/bsps/epiphany/epiphany_sim/console/console-io.c
@@ -0,0 +1,104 @@
+/*
+ * Copyright (c) 2015 University of York.
+ * Hesham ALMatary <hmka501@york.ac.uk>
+ *
+ * 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.
+ *
+ * THIS SOFTWARE IS PROVIDED BY THE AUTHOR 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 AUTHOR 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 <bsp.h>
+#include <bsp/console-polled.h>
+#include <rtems/libio.h>
+#include <stdlib.h>
+#include <assert.h>
+#include <stdio.h>
+
+static void outbyte_console( char );
+static char inbyte_console( void );
+
+void console_initialize_hardware(void)
+{
+  /* Do nothing */
+}
+
+/* Epiphany simulator would handle this system call */
+static void outbyte_console(char c)
+{
+  register int chan asm("r0") = STDOUT_FILENO;
+  register void* addr asm("r1") = &c;
+  register int len asm("r2") = 1;
+
+  /* Invoke write system call to be handled by Epiphany simulator */
+  __asm__ __volatile__ ("trap 0" : : "r" (chan), "r" (addr), "r" (len));
+}
+
+static char inbyte_console(void)
+{
+  char c;
+  register int chan asm("r0") = STDIN_FILENO;
+  register void* addr asm("r1") = &c;
+  register int len asm("r2") = 1;
+
+  /* Invoke read system call to be handled by Epiphany simulator */
+  asm ("trap 1" :: "r" (chan), "r" (addr), "r" (len));
+  return c;
+}
+
+/*
+ *  console_outbyte_polled
+ *
+ *  This routine transmits a character using polling.
+ */
+void console_outbyte_polled(
+  int  port,
+  char ch
+)
+{
+  outbyte_console( ch );
+}
+
+/*
+ *  console_inbyte_nonblocking
+ *
+ *  This routine polls for a character.
+ */
+
+int console_inbyte_nonblocking(int port)
+{
+  char c;
+
+  c = inbyte_console();
+  if (!c)
+    return -1;
+  return (int) c;
+}
+
+/*
+ *  To support printk
+ */
+
+#include <rtems/bspIo.h>
+
+static void Epiphany_output_char(char c) { console_outbyte_polled( 0, c ); }
+
+BSP_output_char_function_type BSP_output_char = Epiphany_output_char;
+BSP_polling_getchar_function_type BSP_poll_char =
+  (void *)console_inbyte_nonblocking;