/**************************************************************************** * boards/arm/samd2l2/samd21-xplained/src/sam_ug2832hsweg04.c * * Licensed to the Apache Software Foundation (ASF) under one or more * contributor license agreements. See the NOTICE file distributed with * this work for additional information regarding copyright ownership. The * ASF licenses this file to you under the Apache License, Version 2.0 (the * "License"); you may not use this file except in compliance with the * License. You may obtain a copy of the License at * * http://www.apache.org/licenses/LICENSE-2.0 * * Unless required by applicable law or agreed to in writing, software * distributed under the License is distributed on an "AS IS" BASIS, WITHOUT * WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. See the * License for the specific language governing permissions and limitations * under the License. * ****************************************************************************/ /* OLED1 Connector: * * OLED1 CONNECTOR * ----------------- ---------------------- ---------------------- * OLED1 EXT1 EXT2 * ----------------- ---------------------- ---------------------- * 1 ID 1 1 * ----------------- ---------------------- ---------------------- * 2 GND 2 GND 2 GND * ----------------- ---------------------- ---------------------- * 3 BUTTON2 3 PB00 AIN[8] 3 PA10 AIN[18] * ----------------- ---------------------- ---------------------- * 4 BUTTON3 4 PB01 AIN[9] 4 PA11 AIN[19] * ----------------- ---------------------- ---------------------- * 5 DATA_CMD_SEL 5 PB06 PORT 5 PA20 PORT * ----------------- ---------------------- ---------------------- * 6 LED3 6 PB07 PORT 6 PA21 PORT * ----------------- ---------------------- ---------------------- * 7 LED1 7 PB02 TC6/WO[0] 7 PB12 TC4/WO[0] * ----------------- ---------------------- ---------------------- * 8 LED2 8 PB03 TC6/WO[1] 8 PB13 TC4/WO[1] * ----------------- ---------------------- ---------------------- * 9 BUTTON1 9 PB04 EXTINT[4] 9 PB14 EXTINT[14] * ----------------- ---------------------- ---------------------- * 10 DISPLAY_RESET 10 PB05 PORT 10 PB15 PORT * ----------------- ---------------------- ---------------------- * 11 N/C 11 PA08 SERCOM2 PAD[0] 11 PA08 SERCOM2 PAD[0] * I²C SDA I²C SDA * ----------------- ---------------------- ---------------------- * 12 N/C 12 PA09 SERCOM2 PAD[1] 12 PA09 SERCOM2 PAD[1] * I²C SCL I²C SCL * ----------------- ---------------------- ---------------------- * 13 N/C 13 PB09 SERCOM4 PAD[1] 13 PB11 SERCOM4 PAD[1] * USART RX USART RX * ----------------- ---------------------- ---------------------- * 14 N/C 14 PB08 SERCOM4 PAD[0] 14 PB10 SERCOM4 PAD[0] * USART TX USART TX * ----------------- ---------------------- ---------------------- * 15 DISPLAY_SS 15 PA05 SERCOM0 PAD[1] 15 PA17 SERCOM1 PAD[1] * SPI SS SPI SS * ----------------- ---------------------- ---------------------- * 16 SPI_MOSI 16 PA06 SERCOM0 PAD[2] 16 PA18 SERCOM1 PAD[2] * SPI MOSI SPI MOSI * ----------------- ---------------------- ---------------------- * 17 N/C 17 PA04 SERCOM0 PAD[0] 17 PA16 SERCOM1 PAD[0] * SPI MISO SPI MISO * ----------------- ---------------------- ---------------------- * 18 SPI_SCK 18 PA07 SERCOM0 PAD[3] 18 PA19 SERCOM1 PAD[3] * SPI SCK SPI SCK * ----------------- ---------------------- ---------------------- * 19 GND 19 GND GND * ----------------- ---------------------- ---------------------- * 20 VCC 20 VCC VCC * ----------------- ---------------------- ---------------------- * * OLED1 signals * * DATA_CMD_SEL - Data/command select. Used to choose whether the * communication is data to the display memory or a command to the LCD * controller. High = data, low = command * DISPLAY_RESET - Reset signal to the OLED display, active low. Used during * initialization of the display. * DISPLAY_SS - SPI slave select signal, must be held low during SPI * communication. * SPI_MOSI - SPI master out, slave in signal. Used to write data to the * display * SPI_SCK SPI - clock signal, generated by the master. */ /**************************************************************************** * Included Files ****************************************************************************/ #include #include #include #include #include #include #include "sam_port.h" #include "sam_spi.h" #include "samd21-xplained.h" #ifdef CONFIG_SAMD21_XPLAINED_OLED1MODULE /**************************************************************************** * Pre-processor Definitions ****************************************************************************/ /* Configuration ************************************************************/ /* The pin configurations here require that SPI1 is selected */ #ifndef CONFIG_LCD_SSD1306 # error "The OLED driver requires CONFIG_LCD_SSD1306 in the configuration" #endif #ifndef CONFIG_LCD_UG2832HSWEG04 # error "The OLED driver requires CONFIG_LCD_UG2832HSWEG04 in the configuration" #endif #ifndef SAMD2L2_HAVE_SPI0 # error "The OLED driver requires SAMD2L2_HAVE_SPI0 in the configuration" #endif #ifndef CONFIG_SPI_CMDDATA # error "The OLED driver requires CONFIG_SPI_CMDDATA in the configuration" #endif /**************************************************************************** * Public Functions ****************************************************************************/ /**************************************************************************** * Name: board_graphics_setup * * Description: * Called by NX initialization logic to configure the OLED. * ****************************************************************************/ struct lcd_dev_s *board_graphics_setup(unsigned int devno) { struct spi_dev_s *spi; struct lcd_dev_s *dev; /* Configure the OLED PORTs. This initial configuration is RESET low, * putting the OLED into reset state. */ sam_configport(PORT_OLED_RST); /* Wait a bit then release the OLED from the reset state */ up_mdelay(20); sam_portwrite(PORT_OLED_RST, true); /* Get the SPI1 port interface */ spi = sam_spibus_initialize(OLED_CSNO); if (!spi) { lcderr("ERROR: Failed to initialize SPI port 1\n"); } else { /* Bind the SPI port to the OLED */ dev = ssd1306_initialize(spi, NULL, devno); if (!dev) { lcderr("ERROR: Failed to bind SPI port 1 to OLED %d\n", devno); } else { lcdinfo("Bound SPI port 1 to OLED %d\n", devno); /* And turn the OLED on */ dev->setpower(dev, CONFIG_LCD_MAXPOWER); return dev; } } return NULL; } #endif /* CONFIG_SAMD21_XPLAINED_OLED1MODULE */