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author | patacongo <patacongo@42af7a65-404d-4744-a932-0658087f49c3> | 2012-03-24 17:27:38 +0000 |
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committer | patacongo <patacongo@42af7a65-404d-4744-a932-0658087f49c3> | 2012-03-24 17:27:38 +0000 |
commit | 87e2cdcd00d8cdaab89a154cfb7112a54252c1c2 (patch) | |
tree | c2aa0d0293e55d558763d9c11ddc7781c1af4699 /nuttx/arch/arm/src/calypso/calypso_armio.c | |
parent | d941bab5f47e370884546575d1aa0e3001bb6028 (diff) | |
download | px4-nuttx-87e2cdcd00d8cdaab89a154cfb7112a54252c1c2.tar.gz px4-nuttx-87e2cdcd00d8cdaab89a154cfb7112a54252c1c2.tar.bz2 px4-nuttx-87e2cdcd00d8cdaab89a154cfb7112a54252c1c2.zip |
Add support for compal e99 and e88 phones
git-svn-id: svn://svn.code.sf.net/p/nuttx/code/trunk@4512 42af7a65-404d-4744-a932-0658087f49c3
Diffstat (limited to 'nuttx/arch/arm/src/calypso/calypso_armio.c')
-rw-r--r-- | nuttx/arch/arm/src/calypso/calypso_armio.c | 103 |
1 files changed, 103 insertions, 0 deletions
diff --git a/nuttx/arch/arm/src/calypso/calypso_armio.c b/nuttx/arch/arm/src/calypso/calypso_armio.c new file mode 100644 index 000000000..59c5a79e7 --- /dev/null +++ b/nuttx/arch/arm/src/calypso/calypso_armio.c @@ -0,0 +1,103 @@ +/**************************************************************************** + * Driver for shared features of ARMIO modules + * + * Copyright (C) 2011 Stefan Richter. All rights reserved. + * Author: Stefan Richter <ichgeh@l--putt.de> + * + * 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. + * + ****************************************************************************/ + +#include <nuttx/config.h> + +#include <nuttx/arch.h> +#include <nuttx/irq.h> + +#include <arch/calypso/memory.h> +#include <arch/calypso/armio.h> + + +/**************************************************************************** + * HW access + ****************************************************************************/ + +#define BASE_ADDR_ARMIO 0xfffe4800 +#define ARMIO_REG(x) ((void *)BASE_ADDR_ARMIO + (x)) + +enum armio_reg { + LATCH_IN = 0x00, + LATCH_OUT = 0x02, + IO_CNTL = 0x04, + CNTL_REG = 0x06, + LOAD_TIM = 0x08, + KBR_LATCH_REG = 0x0a, + KBC_REG = 0x0c, + BUZZ_LIGHT_REG = 0x0e, + LIGHT_LEVEL = 0x10, + BUZZER_LEVEL = 0x12, + GPIO_EVENT_MODE = 0x14, + KBD_GPIO_INT = 0x16, + KBD_GPIO_MASKIT = 0x18, + GPIO_DEBOUNCING = 0x1a, + GPIO_LATCH = 0x1c, +}; + +#define KBD_INT (1<<0) +#define GPIO_INT (1<<1) + + +/**************************************************************************** + * ARMIO interrupt handler + * forward keypad events + * forward GPIO events + ****************************************************************************/ + +static int kbd_gpio_irq(int irq, uint32_t *regs) +{ + calypso_kbd_irq(); + + return 0; +} + + +/**************************************************************************** + * Initialize ARMIO + ****************************************************************************/ + +void calypso_armio(void) +{ + /* Enable ARMIO clock */ + writew(1<<5, ARMIO_REG(CNTL_REG)); + + /* Mask GPIO interrupt and keypad interrupt */ + writew(KBD_INT|GPIO_INT, ARMIO_REG(KBD_GPIO_MASKIT)); + + /* Attach and enable the interrupt */ + irq_attach(IRQ_KEYPAD_GPIO, (xcpt_t)kbd_gpio_irq); + up_enable_irq(IRQ_KEYPAD_GPIO); +} |