1 files changed, 191 insertions, 0 deletions
diff --git a/bsps/i386/pc386/console/vgacons.c b/bsps/i386/pc386/console/vgacons.c
new file mode 100644
index 0000000000..2886496e51
--- /dev/null
+++ b/bsps/i386/pc386/console/vgacons.c
@@ -0,0 +1,191 @@
+/*
+ *  This file contains the termios TTY driver for the i386
+ *  vga.
+ *
+ *  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 <rtems.h>
+#include <rtems/libio.h>
+#include <stdlib.h>
+#include <libchip/serial.h>
+#include <rtems/vgacons.h>
+#include <rtems/keyboard.h>
+#include <libchip/sersupp.h>
+#include <bsp/irq.h>
+#include <bsp.h>
+#include <crt.h>
+#include <assert.h>
+#include <rtems/keyboard.h>
+
+#define VGACONS_STATIC static
+
+/*
+ *  vgacons_init
+ *
+ *  This function initializes the VGA console to a quiecsent state.
+ */
+VGACONS_STATIC void vgacons_init(int minor)
+{
+  /*
+   * Note:  We do not initialize the KBD interface here since
+   *        it was initialized regardless of whether the
+   *        vga is available or not.  Therefore it is initialized
+   *        in bsp_start.
+   */
+}
+
+/*
+ *  vgacons_open
+ *
+ *  This function opens a port for communication.
+ *
+ *  Default state is 9600 baud, 8 bits, No parity, and 1 stop bit.
+ */
+VGACONS_STATIC int vgacons_open(
+  int      major,
+  int      minor,
+  void    *arg
+)
+{
+  return RTEMS_SUCCESSFUL;
+}
+
+/*
+ *  vgacons_close
+ *
+ *  This function shuts down the requested port.
+ */
+VGACONS_STATIC int vgacons_close(
+  int      major,
+  int      minor,
+  void    *arg
+)
+{
+  return(RTEMS_SUCCESSFUL);
+}
+
+/*
+ *  vgacons_write_polled
+ *
+ *  This routine polls out the requested character.
+ */
+VGACONS_STATIC void vgacons_write_polled(
+  int   minor,
+  char  c
+)
+{
+  _IBMPC_outch( c );
+  if( c == '\n')
+    _IBMPC_outch( '\r' );            /* LF = LF + CR */
+}
+
+/*
+ *  vgacons_write_support_polled
+ *
+ *  Console Termios output entry point when using polled output.
+ *
+ */
+VGACONS_STATIC ssize_t vgacons_write_support_polled(
+  int         minor,
+  const char *buf,
+  size_t      len
+)
+{
+  int nwrite = 0;
+
+  /*
+   * poll each byte in the string out of the port.
+   */
+  while (nwrite < len) {
+    vgacons_write_polled(minor, *buf++);
+    nwrite++;
+  }
+
+  /*
+   * return the number of bytes written.
+   */
+  return nwrite;
+}
+
+/*
+ *  vgacons_inbyte_nonblocking_polled
+ *
+ *  Console Termios polling input entry point.
+ */
+VGACONS_STATIC int vgacons_inbyte_nonblocking_polled(
+  int minor
+)
+{
+  if( rtems_kbpoll() ) {
+    int c = getch();
+    return c;
+  }
+
+  return -1;
+}
+
+/*
+ *  vgacons_set_attributes
+ *
+ *  This function sets the UART channel to reflect the requested termios
+ *  port settings.
+ */
+VGACONS_STATIC int vgacons_set_attributes(
+  int minor,
+  const struct termios *t
+)
+{
+  return 0;
+}
+
+bool vgacons_probe(
+  int minor
+)
+{
+  rtems_status_code status;
+  static bool firstTime = true;
+
+  if ((*(unsigned char*) NB_MAX_ROW_ADDR == 0) &&
+      (*(unsigned short*)NB_MAX_COL_ADDR == 0)) {
+    return false;
+  }
+
+  /*
+   *  If there is a video card, let's assume there is also a keyboard.
+   *  The means that we need the ISR installed in case someone wants to
+   *  use the Keyboard or PS2 Mouse.  With Microwindows, the console
+   *  can be COM1 and you can still use the mouse/VGA for graphics.
+   */
+  if ( firstTime ) {
+    status = rtems_interrupt_handler_install(
+      BSP_KEYBOARD,
+      "vgacons",
+      RTEMS_INTERRUPT_UNIQUE,
+      keyboard_interrupt,
+      NULL
+    );
+    assert(status == RTEMS_SUCCESSFUL);
+  }
+  firstTime = false;
+
+  return true;
+}
+
+const console_fns vgacons_fns =
+{
+  libchip_serial_default_probe,        /* deviceProbe */
+  vgacons_open,                        /* deviceFirstOpen */
+  vgacons_close,                       /* deviceLastClose */
+  vgacons_inbyte_nonblocking_polled,   /* deviceRead */
+  vgacons_write_support_polled,        /* deviceWrite */
+  vgacons_init,                        /* deviceInitialize */
+  vgacons_write_polled,                /* deviceWritePolled */
+  vgacons_set_attributes,              /* deviceSetAttributes */
+  FALSE,                               /* deviceOutputUsesInterrupts */
+};