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/****************************************************************************
* config/lm3s8962-ek/src/up_oled.c
* arch/arm/src/board/up_oled.c
*
* Copyright (C) 2010 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 <stdio.h>
#include <debug.h>
#include <errno.h>
#include <nuttx/spi.h>
#include <nuttx/lcd.h>
#include <nuttx/p14201.h>
#include "lm3s_internal.h"
#include "lm3s8962ek_internal.h"
/****************************************************************************
* Pre-Processor Definitions
****************************************************************************/
/* Define the CONFIG_LCD_RITDEBUG to enable detailed debug output (stuff you
* would never want to see unless you are debugging this file).
*
* Verbose debug must also be enabled
*/
#ifndef CONFIG_DEBUG
# undef CONFIG_DEBUG_VERBOSE
# undef CONFIG_DEBUG_GRAPHICS
#endif
#ifndef CONFIG_DEBUG_VERBOSE
# undef CONFIG_LCD_RITDEBUG
#endif
#ifdef CONFIG_LCD_RITDEBUG
# define ritdbg(format, arg...) vdbg(format, ##arg)
# define oleddc_dumpgpio(m) lm3s_dumpgpio(OLEDDC_GPIO, m)
# define oledcs_dumpgpio(m) lm3s_dumpgpio(OLEDCS_GPIO, m)
#else
# define ritdbg(x...)
# define oleddc_dumpgpio(m)
# define oledcs_dumpgpio(m)
#endif
/****************************************************************************
* Public Functions
****************************************************************************/
/****************************************************************************
* Name: up_nxdrvinit
*
* Description:
* Called NX initialization logic to configure the OLED.
*
****************************************************************************/
FAR struct lcd_dev_s *up_nxdrvinit(unsigned int devno)
{
FAR struct spi_dev_s *spi;
FAR struct lcd_dev_s *dev;
/* Configure the OLED GPIOs */
oledcs_dumpgpio("up_nxdrvinit: After OLEDCS setup");
oleddc_dumpgpio("up_nxdrvinit: On entry");
lm3s_configgpio(OLEDDC_GPIO); /* PC7: OLED display data/control select (D/Cn) */
lm3s_configgpio(OLEDEN_GPIO); /* PC6: Enable +15V needed by OLED (EN+15V) */
oleddc_dumpgpio("up_nxdrvinit: After OLEDDC/EN setup");
/* Get the SSI port (configure as a Freescale SPI port) */
spi = up_spiinitialize(0);
if (!spi)
{
glldbg("Failed to initialize SSI port 0\n");
}
else
{
/* Bind the SSI port to the OLED */
dev = rit_initialize(spi, devno);
if (!dev)
{
glldbg("Failed to bind SSI port 0 to OLED %d: %d\n", devno);
}
else
{
gllvdbg("Bound SSI port 0 to OLED %d\n", devno);
/* And turn the OLED on (CONFIG_LCD_MAXPOWER should be 1) */
(void)dev->setpower(dev, CONFIG_LCD_MAXPOWER);
return dev;
}
}
return NULL;
}
/******************************************************************************
* Name: rit_seldata
*
* Description:
* Set or clear the SD1329 D/Cn bit to select data (true) or command
* (false). This function must be provided by platform-specific logic.
*
* Input Parameters:
*
* devno - A value in the range of 0 throuh CONFIG_P14201_NINTERFACES-1.
* This allows support for multiple OLED devices.
* data - true: select data; false: select command
*
* Returned Value:
* None
*
******************************************************************************/
void rit_seldata(unsigned int devno, bool data)
{
/* Set GPIO to 1 for data, 0 for command */
lm3s_gpiowrite(OLEDDC_GPIO, data);
}
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