From 8f8dccfe507c5095b8910a6401a2b7e5dda7dae7 Mon Sep 17 00:00:00 2001 From: patacongo Date: Mon, 8 Dec 2008 16:58:18 +0000 Subject: Add button support git-svn-id: svn://svn.code.sf.net/p/nuttx/code/trunk@1433 42af7a65-404d-4744-a932-0658087f49c3 --- nuttx/configs/ez80f910200zco/src/ez80_buttons.c | 182 ++++++++++++++++++++++++ 1 file changed, 182 insertions(+) create mode 100755 nuttx/configs/ez80f910200zco/src/ez80_buttons.c (limited to 'nuttx/configs/ez80f910200zco/src') 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 + * + * 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 +#include + +#include + +#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 */ -- cgit v1.2.3