diff options
Diffstat (limited to 'nuttx/configs/zp214xpa/src/up_ug2864ambag01.c')
| -rw-r--r-- | nuttx/configs/zp214xpa/src/up_ug2864ambag01.c | 177 |
1 files changed, 177 insertions, 0 deletions
diff --git a/nuttx/configs/zp214xpa/src/up_ug2864ambag01.c b/nuttx/configs/zp214xpa/src/up_ug2864ambag01.c new file mode 100644 index 000000000..164518db3 --- /dev/null +++ b/nuttx/configs/zp214xpa/src/up_ug2864ambag01.c @@ -0,0 +1,177 @@ +/**************************************************************************** + * config/zp214xpa/src/up_ug2864ambag01.c + * arch/arm/src/board/up_ug2864ambag01.c + * + * Copyright (C) 2012 Gregory Nutt. All rights reserved. + * Author: Gregory Nutt <gnutt@nuttx.org> + * + * 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 <debug.h> + +#include <nuttx/spi.h> +#include <nuttx/lcd/lcd.h> +#include <nuttx/lcd/ug-2864ambag01.h> + +#include "up_arch.h" +#include "chip.h" +#include "lpc214x_pinsel.h" + +#ifdef CONFIG_LCD_UG2864AMBAG01 + +/**************************************************************************** + * Pre-Processor Definitions + ****************************************************************************/ +/* Configuration ************************************************************/ +/* The pin configurations here requires that SPI1 is avaialable */ + +/* SPI should be configured with CMD/DATA support (and no transfer methods) */ + +#ifndef CONFIG_SPI_CMDDATA +# error "The OLED driver requires CONFIG_SPI_CMDDATA in the configuration" +#endif + +/* Pin Configuration ********************************************************/ +/* UG-2864AMBAG01 OLED Display: + * + * PIN NAME PIN CONFIGURATION + * 1 3V3 + * 2 5V + * 3 RESET P0.18/CAP1.3/MISO1/MAT1.3P0.18 RESET - General purpose output + * 4 DI P0.19/MAT1.2/MOSI1/CAP1.2P0.19 DI - Alternate function 2 + * 5 CS P0.20/MAT1.3/SSEL1/EINT3 - General purpose output + * 6 SCK P0.17/CAP1.2/SCK1/MAT1.2 - Alternate function 2 + * 7 A0 P0.23/VBUS - General purpose output + * 8 N/C LED- + * 9 N/C LED+ (BL) + * 10 GND + * + * Definitions and configuration for DO, DI, CS, in up_spi1.c + */ + +/* Use either FIO or legacy GPIO */ + +#ifdef CONFIG_LPC214x_FIO +# define CS_SET_REGISTER (LPC214X_FIO0_BASE+LPC214X_FIO_SET_OFFSET) +# define CS_CLR_REGISTER (LPC214X_FIO0_BASE+LPC214X_FIO_CLR_OFFSET) +# define CS_DIR_REGISTER (LPC214X_FIO0_BASE+LPC214X_FIO_DIR_OFFSET) +#else +# define CS_SET_REGISTER (LPC214X_GPIO0_BASE+LPC214X_GPIO_SET_OFFSET) +# define CS_CLR_REGISTER (LPC214X_GPIO0_BASE+LPC214X_GPIO_CLR_OFFSET) +# define CS_DIR_REGISTER (LPC214X_GPIO0_BASE+LPC214X_GPIO_DIR_OFFSET) +#endif + +/* Debug ********************************************************************/ + +#ifdef CONFIG_DEBUG_LCD +# define lcddbg(format, arg...) dbg(format, ##arg) +# define lcdvdbg(format, arg...) vdbg(format, ##arg) +#else +# define lcddbg(x...) +# define lcdvdbg(x...) +#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; + uint32_t regval32; + uint32_t bits32; + + /* Configure multiplexed pins as connected on the ZP213X/4XPA board: + * + * PINSEL1 P0.18/CAP1.3/MISO1/MAT1.3 Bits 4-5=00 for P0.18 + */ + + regval32 = getreg32(LPC214X_PINSEL1); + regval32 &= ~LPC214X_PINSEL1_P018_MASK; + regval32 |= LPC214X_PINSEL1_P018_GPIO; + putreg32(regval32, LPC214X_PINSEL1); + + /* Set the RESET line low, putting the OLED into the reset state. */ + + bits32 = (1 << 18); + putreg32(bits32, CS_CLR_REGISTER); + regval32 = getreg32(CS_DIR_REGISTER); + putreg32(regval32 | bits32, CS_DIR_REGISTER); + + /* Wait a bit then release the OLED from the reset state */ + + up_mdelay(20); + putreg32(bits32, CS_SET_REGISTER); + + /* Get the SPI1 port interface */ + + spi = up_spiinitialize(1); + if (!spi) + { + lcddbg("Failed to initialize SPI port 1\n"); + } + else + { + /* Bind the SPI port to the OLED */ + + dev = ug2864ambag01_initialize(spi, devno); + if (!dev) + { + lcddbg("Failed to bind SPI port 1 to OLED %d: %d\n", devno); + } + else + { + lcdvdbg("Bound SPI port 1 to OLED %d\n", devno); + + /* And turn the OLED on */ + + (void)dev->setpower(dev, CONFIG_LCD_MAXPOWER); + return dev; + } + } + + return NULL; +} +#endif /* CONFIG_LCD_UG2864AMBAG01 */ |