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Diffstat (limited to 'nuttx/configs/lpcxpresso-lpc1768/src/up_oled.c')
| -rwxr-xr-x | nuttx/configs/lpcxpresso-lpc1768/src/up_oled.c | 183 |
1 files changed, 183 insertions, 0 deletions
diff --git a/nuttx/configs/lpcxpresso-lpc1768/src/up_oled.c b/nuttx/configs/lpcxpresso-lpc1768/src/up_oled.c new file mode 100755 index 000000000..41ab01b82 --- /dev/null +++ b/nuttx/configs/lpcxpresso-lpc1768/src/up_oled.c @@ -0,0 +1,183 @@ +/**************************************************************************** + * config/lpcxpresso-lpc1768/src/up_oled.c + * arch/arm/src/board/up_oled.c + * + * Copyright (C) 2011 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/lcd.h> +#include <nuttx/lcd/p14201.h> + +#include "lpc17_internal.h" +#include "lpcxpresso_internal.h" + +/**************************************************************************** + * Pre-Processor Definitions + ****************************************************************************/ +/* Configuration ************************************************************/ +/* This module is only built if CONFIG_NX_LCDDRIVER is selected. In this + * case, it would be an error if SSP1 is not also enabled. + */ + +#ifndef CONFIG_LPC17_SSP1 +# error "The OLED driver required CONFIG_LPC17_SSP1 in the configuration" +#endif + +/* Debug ********************************************************************/ +/* 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(LPCXPRESSO_OLED_POWER, m) +# define oledcs_dumpgpio(m) lm3s_dumpgpio(LPCXPRESSO_OLED_CS, m) +#else +# define ritdbg(x...) +# define oleddc_dumpgpio(m) +# define oledcs_dumpgpio(m) +#endif + +/**************************************************************************** + * Public Functions + ****************************************************************************/ + +/**************************************************************************** + * Name: up_nxdrvinit + * + * Description: + * Called by 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. For the SPI interface, insert jumpers in J42, + * J43, J45 pin1-2 and J46 pin 1-2. + */ + + oledcs_dumpgpio("up_nxdrvinit: After OLED CS setup"); + oleddc_dumpgpio("up_nxdrvinit: On entry"); + + (void)lpc17_configgpio(LPCXPRESSO_OLED_POWER); /* OLED 11V power */ + (void)lpc17_configgpio(LPCXPRESSO_OLED_DC); /* OLED Command/Data */ + + oleddc_dumpgpio("up_nxdrvinit: After OLED Power/DC setup"); + + /* Get the SSI port (configure as a Freescale SPI port) */ + + spi = up_spiinitialize(1); + if (!spi) + { + glldbg("Failed to initialize SSI port 1\n"); + } + else + { + /* Bind the SSI port to the OLED */ + + dev = rit_initialize(spi, devno); + if (!dev) + { + glldbg("Failed to bind SSI port 1 to OLED %d: %d\n", devno); + } + else + { + gllvdbg("Bound SSI port 1 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: lm3s_spicmddata + * + * 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. + * This is an implementation of the cmddata method of the SPI + * interface defined by struct spi_ops_s (see include/nuttx/spi.h). + * + * Input Parameters: + * + * spi - SPI device that controls the bus the device that requires the CMD/ + * DATA selection. + * devid - If there are multiple devices on the bus, this selects which one + * to select cmd or data. NOTE: This design restricts, for example, + * one one SPI display per SPI bus. + * cmd - true: select command; false: select data + * + * Returned Value: + * None + * + ******************************************************************************/ + +int lm3s_spicmddata(FAR struct spi_dev_s *dev, enum spi_dev_e devid, bool cmd) +{ + if (devid == SPIDEV_DISPLAY) + { + /* Set GPIO to 1 for data, 0 for command */ + + lm3s_gpiowrite(OLEDDC_GPIO, !cmd); + return OK; + } + return -ENODEV; +} |