Add button support

git-svn-id: svn://svn.code.sf.net/p/nuttx/code/trunk@1433 42af7a65-404d-4744-a932-0658087f49c3

1 files changed, 182 insertions, 0 deletions

diff --git a/nuttx/configs/ez80f910200zco/src/ez80_buttons.c b/nuttx/configs/ez80f910200zco/src/ez80_buttons.c
new file mode 100755
index 000000000..66fa71501
--- /dev/null
+++ b/nuttx/configs/ez80f910200zco/src/ez80_buttons.c
@@ -0,0 +1,182 @@
+/****************************************************************************

+ * configs/olimex-strp711/src/up_leds.c

+ *

+ *   Copyright (C) 2008 Gregory Nutt. All rights reserved.

+ *   Author: Gregory Nutt <spudmonkey@racsa.co.cr>

+ *

+ * 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 <sys/types.h>

+

+#include <nuttx/irq.h>

+

+#include "chip.h"

+#include "up_arch.h"

+#include "up_internal.h"

+

+/****************************************************************************

+ * Definitions

+ ****************************************************************************/

+

+/* The Olimex board has two buttons, one labled "BUT" and the other "WAKEUP"

+ *

+ * P0.15: WAKEUP button

+ * P1.13: BUT button

+ */

+

+#define STR71X_BUTBUTTON_GPIO1    (0x2000)

+#define STR71X_WAKEUPBUTTON_GPIO0 (0x8000)

+

+/****************************************************************************

+ * Private Data

+ ****************************************************************************/

+

+/****************************************************************************

+ * Private Functions

+ ****************************************************************************/

+

+/****************************************************************************

+ * Name: up_PB/1/2interrupt

+ *

+ * Description:

+ *   These could be exteneded to provide interrupt driven button input

+ *

+ ****************************************************************************/

+

+#if 0

+void up_PBinterrupt(void)

+{

+  ubyte regval;

+

+  regval = inp(EZ80_PB_DR); /* Clear interrupt flag for eZ80F91 date codes before 0611 */

+  regval |= 7;

+  outp(EZ80_PB_DR, regval);

+

+  regval = inp(EZ80_PB_ALT0); /* Clear interrupt flag for eZ80F91 date codes 0611 and after */

+  regval |= 1;

+  outp(EZ80_PB_ALT0, regval);

+}

+

+void up_pb1interrupt(void)

+{

+  ubyte regval;

+

+  regval = inp(EZ80_PB_DR); /* Clear interrupt flag for eZ80F91 date codes before 0611 */

+  regval |= 7;

+  outp(EZ80_PB_DR, regval);

+

+  regval = inp(EZ80_PB_ALT0); /* Clear interrupt flag for eZ80F91 date codes 0611 and after */

+  regval |= 2;

+  outp(EZ80_PB_ALT0, regval);

+}

+

+void up_pb2interrupt(void)

+{

+  ubyte regval;

+

+  regval = inp(EZ80_PB_DR); /* Clear interrupt flag for eZ80F91 date codes before 0611 */

+  regval |= 7;

+  outp(EZ80_PB_DR, regval);

+

+  regval = inp(EZ80_PB_ALT0);

+  regval |= 4;

+  outp(EZ80_PB_ALT0, regval); /* Clear interrupt flag for eZ80F91 date codes 0611 and after */

+}

+#endif

+

+/****************************************************************************

+ * Public Functions

+ ****************************************************************************/

+

+/****************************************************************************

+ * Name: up_buttoninit

+ ****************************************************************************/

+

+#ifdef CONFIG_ARCH_BUTTONS

+void up_buttoninit(void)

+{

+  ubyte regval;

+

+#if 0 /* Interrupts are not used */

+

+  /* Attach GIO interrupts */

+  

+  irq_attach(EZ80_PB_IRQ, up_PBinterrupt);

+  irq_attach(EZ80_PB1_IRQ, up_pb1interrupt);

+  irq_attach(EZ80_PB2_IRQ, up_pb2interrupt);

+

+  /* Configure PB0,1,2 as interrupt, rising edge */

+

+  regval = inp(EZ80_PB_DR);

+  regval |= 7;

+  outp(EZ80_PB_DR, regval);

+

+  regval = inp(EZ80_PB_DDR);

+  regval |= 7;

+  outp(EZ80_PB_DDR, regval);

+

+  regval = inp(EZ80_PB_ALT1);

+  regval |= 7;

+  outp(EZ80_PB_ALT1, regval);

+

+  regval = inp(EZ80_PB_ALT2);

+  regval |= 7;

+  outp(EZ80_PB_ALT2, regval);

+#else

+  /* Configure PB0,1,2 as inputs */

+

+  regval = inp(EZ80_PB_DDR);

+  regval |= 7;

+  outp(EZ80_PB_DDR, regval);

+

+  regval = inp(EZ80_PB_ALT1);

+  regval &= ~7;

+  outp(EZ80_PB_ALT1, regval);

+

+  regval = inp(EZ80_PB_ALT2);

+  regval &= ~7;

+  outp(EZ80_PB_ALT2, regval);

+#endif

+}

+

+/****************************************************************************

+ * Name: up_buttons

+ ****************************************************************************/

+

+ubyte up_buttons(void)

+{

+  return inp(EZ80_PB_DDR) & 7;

+}

+#endif /* CONFIG_ARCH_BUTTONS */