Obsolete support for the 8051 family. Trying to maintain compatibility with this family is too much effort and there has never really been a successful NuttX impplementation on these parts

1 files changed, 152 insertions, 0 deletions

diff --git a/misc/Obsoleted/arch/8051/src/up_irq.c b/misc/Obsoleted/arch/8051/src/up_irq.c
new file mode 100644
index 000000000..85b30aeaf
--- /dev/null
+++ b/misc/Obsoleted/arch/8051/src/up_irq.c
@@ -0,0 +1,152 @@
+/************************************************************************
+ * arch/8051/src/up_irq.c
+ *
+ *   Copyright (C) 2007, 2009, 2014 Gregory Nutt. All rights reserved.
+ *   Author: Gregory Nutt <gnutt@nuttx.org>
+ *
+ * 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.
+ * 3. Neither the name NuttX nor the names of its contributors may be
+ *    used to endorse or promote products derived from this software
+ *    without specific prior written permission.
+ *
+ * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS 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
+ * COPYRIGHT OWNER 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.
+ *
+ ************************************************************************/
+
+/************************************************************************
+ * Included Files
+ ************************************************************************/
+
+#include <nuttx/config.h>
+
+#include <nuttx/irq.h>
+#include <debug.h>
+
+#include <8052.h>
+
+#include "up_internal.h"
+
+extern int g_nints;
+
+/************************************************************************
+ * Definitions
+ ************************************************************************/
+
+/************************************************************************
+ * Public Data
+ ************************************************************************/
+
+/************************************************************************
+ * Private Data
+ ************************************************************************/
+
+/************************************************************************
+ * Private Functions
+ ************************************************************************/
+
+/************************************************************************
+ * Public Funtions
+ ************************************************************************/
+
+/************************************************************************
+ * Name: irq_initialize
+ ************************************************************************/
+
+void up_irqinitialize(void)
+{
+  /* Set interrupt priorities (all low) */
+
+  IP = 0;
+
+#ifdef CONFIG_ARCH_8051_SUPRESS_INTERRUPTS
+  /* Disable all interrupts */
+
+  IE = 0;
+#else
+  /* Enable interrupts globally, but disable all interrupt
+   * sources.
+   */
+
+  IE = 0x80;
+#endif
+}
+
+/************************************************************************
+ * Name: irqsave
+ *
+ * Description:
+ *   Disable all IRQs
+ *
+ ************************************************************************/
+
+irqstate_t irqsave(void)
+{
+  irqstate_t ret = IE;
+  EA = 0;
+  return ret;
+}
+
+/************************************************************************
+ * Name: irqrestore
+ *
+ * Description:
+ *   Restore a previous interrupt state
+ *
+ ************************************************************************/
+
+void irqrestore(irqstate_t flags)
+{
+  IE = flags;
+}
+
+/************************************************************************
+ * Name: up_disable_irq
+ *
+ * Description:
+ *   Disable the IRQ specified by 'irq'
+ *
+ ************************************************************************/
+
+void up_disable_irq(int irq)
+{
+  if ((unsigned)irq < NR_IRQS)
+    {
+      IE &= ~(g_ntobit[irq]);
+    }
+}
+
+/************************************************************************
+ * Name: up_enable_irq
+ *
+ * Description:
+ *   Enable the IRQ specified by 'irq'
+ *
+ ************************************************************************/
+
+void up_enable_irq(int irq)
+{
+  if ((unsigned)irq < NR_IRQS)
+    {
+      IE |= g_ntobit[irq];
+    }
+}