bsps: Move console drivers to bsps

This patch is a part of the BSP source reorganization.

Update #3285.

1 files changed, 128 insertions, 0 deletions

diff --git a/bsps/powerpc/t32mppc/console/console.c b/bsps/powerpc/t32mppc/console/console.c
new file mode 100644
index 0000000000..5fbd648765
--- /dev/null
+++ b/bsps/powerpc/t32mppc/console/console.c
@@ -0,0 +1,128 @@
+/*
+ * Copyright (c) 2012, 2015 embedded brains GmbH.  All rights reserved.
+ *
+ *  embedded brains GmbH
+ *  Dornierstr. 4
+ *  82178 Puchheim
+ *  Germany
+ *  <rtems@embedded-brains.de>
+ *
+ * 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.
+ */
+
+/*
+ * Console driver for Lauterbach Trace32 Simulator.  The implementation is
+ * based on the example in "demo/powerpc/etc/terminal/terminal_mpc85xx.cmm" in
+ * the Trace32 system directory.
+ */
+
+#include <rtems/bspIo.h>
+#include <rtems/console.h>
+#include <rtems/termiostypes.h>
+
+volatile unsigned char messagebufferin[256];
+
+volatile unsigned char messagebufferout[256];
+
+typedef struct {
+  rtems_termios_device_context base;
+  int input_size;
+  int input_index;
+} t32_console_context;
+
+static t32_console_context t32_console_instance;
+
+static bool t32_console_first_open(
+  rtems_termios_tty *tty,
+  rtems_termios_device_context *base,
+  struct termios *term,
+  rtems_libio_open_close_args_t *args
+)
+{
+  rtems_termios_set_initial_baud(tty, 115200);
+
+  return true;
+}
+
+static int t32_console_read_polled(rtems_termios_device_context *base)
+{
+  t32_console_context *ctx = (t32_console_context *) base;
+  int c;
+
+  if (ctx->input_size == 0) {
+    int new_bufsize = messagebufferin[0];
+
+    if (new_bufsize != 0) {
+      ctx->input_size = new_bufsize;
+      ctx->input_index = 0;
+    } else {
+      return -1;
+    }
+  }
+
+  c = messagebufferin[4 + ctx->input_index];
+
+  ++ctx->input_index;
+  if (ctx->input_index >= ctx->input_size) {
+    messagebufferin[0] = 0;
+    ctx->input_size = 0;
+  }
+
+  return c;
+}
+
+static void t32_console_write_char_polled(char c)
+{
+  while (messagebufferout[0] != 0) {
+    /* Wait for ready */
+  }
+
+  messagebufferout[4] = (unsigned char) c;
+  messagebufferout[0] = 1;
+}
+
+static void t32_console_write_polled(
+  rtems_termios_device_context *base,
+  const char *s,
+  size_t n
+)
+{
+  size_t i;
+
+  for (i = 0; i < n; ++i) {
+    t32_console_write_char_polled(s[i]);
+  }
+}
+
+const rtems_termios_device_handler t32_console_handler = {
+  .first_open = t32_console_first_open,
+  .poll_read = t32_console_read_polled,
+  .write = t32_console_write_polled,
+  .mode = TERMIOS_POLLED
+};
+
+rtems_device_driver console_initialize(
+  rtems_device_major_number major,
+  rtems_device_minor_number minor,
+  void *arg
+)
+{
+  t32_console_context *ctx = &t32_console_instance;
+
+  rtems_termios_initialize();
+  rtems_termios_device_context_initialize(&ctx->base, "T32 Console");
+  rtems_termios_device_install(
+    CONSOLE_DEVICE_NAME,
+    &t32_console_handler,
+    NULL,
+    &ctx->base
+  );
+
+  return RTEMS_SUCCESSFUL;
+}
+
+BSP_output_char_function_type BSP_output_char = t32_console_write_char_polled;
+
+BSP_polling_getchar_function_type BSP_poll_char = NULL;