diff options
Diffstat (limited to 'nuttx')
| -rw-r--r-- | nuttx/ChangeLog | 6 | ||||
| -rw-r--r-- | nuttx/configs/stm32f4discovery/README.txt | 2 | ||||
| -rw-r--r-- | nuttx/configs/stm32f4discovery/src/Makefile | 4 | ||||
| -rw-r--r-- | nuttx/configs/stm32f4discovery/src/stm32f4discovery-internal.h | 4 | ||||
| -rw-r--r-- | nuttx/configs/stm32f4discovery/src/up_ug2864hsweg01.c | 161 | ||||
| -rw-r--r-- | nuttx/drivers/lcd/Make.defs | 4 | ||||
| -rw-r--r-- | nuttx/drivers/lcd/ug-2864hsweg01.c | 1177 | ||||
| -rw-r--r-- | nuttx/drivers/usbhost/usbhost_hidkbd.c | 16 | ||||
| -rw-r--r-- | nuttx/include/nuttx/lcd/ug-2864hsweg01.h | 245 |
9 files changed, 1612 insertions, 7 deletions
diff --git a/nuttx/ChangeLog b/nuttx/ChangeLog index 7e1c538d72..a7087656ae 100644 --- a/nuttx/ChangeLog +++ b/nuttx/ChangeLog @@ -3826,4 +3826,10 @@ encode special function keys. * configs/olimex-lpc1766stk/hidkbd: This configuration has been converted to use the kconfig-frontends configuration tool. + * drivers/lcd/ug-2864hsweg01.c and include/nuttx/lcd/ug-2864hsweg01.h: + Driver for UG-2864HSWEG01 OLED contributed by Darcy Gong. + * configs/stm32f4discovery/src/up_ug2864hsweg01.c: Support for the + UG-2864HSWEG01 OLED for the STM32F4Discovery board. + * drivers/usbhost/usbhost_hidkbd.c: Correct a logic error in how + tasks waiting for read data are awakened. diff --git a/nuttx/configs/stm32f4discovery/README.txt b/nuttx/configs/stm32f4discovery/README.txt index d824668cef..37dae7b9ea 100644 --- a/nuttx/configs/stm32f4discovery/README.txt +++ b/nuttx/configs/stm32f4discovery/README.txt @@ -711,7 +711,7 @@ pinout for the UG-2864AMBAG01 is specific to the theO.net display board that I am using: --------------------------+---------------------------------------------- - Connector CON10 J1: | STM32F4Discovery + Connector CON10 J1: | STM32F4Discovery --------------+-----------+---------------------------------------------- CON10 J1: | CON20 J2: | P1/P2: --------------+-----------+---------------------------------------------- diff --git a/nuttx/configs/stm32f4discovery/src/Makefile b/nuttx/configs/stm32f4discovery/src/Makefile index 68419e5d0e..7ac27a7d0a 100644 --- a/nuttx/configs/stm32f4discovery/src/Makefile +++ b/nuttx/configs/stm32f4discovery/src/Makefile @@ -100,6 +100,10 @@ ifeq ($(CONFIG_LCD_UG2864AMBAG01),y) CSRCS += up_ug2864ambag01.c endif +ifeq ($(CONFIG_LCD_UG2864HSWEG01),y) +CSRCS += up_ug2864hsweg01.c +endif + COBJS = $(CSRCS:.c=$(OBJEXT)) SRCS = $(ASRCS) $(CSRCS) diff --git a/nuttx/configs/stm32f4discovery/src/stm32f4discovery-internal.h b/nuttx/configs/stm32f4discovery/src/stm32f4discovery-internal.h index 00f17b58e9..eae09594c5 100644 --- a/nuttx/configs/stm32f4discovery/src/stm32f4discovery-internal.h +++ b/nuttx/configs/stm32f4discovery/src/stm32f4discovery-internal.h @@ -113,7 +113,7 @@ # define GPIO_OTGFS_OVER (GPIO_INPUT|GPIO_FLOAT|GPIO_SPEED_100MHz|GPIO_PUSHPULL|GPIO_PORTD|GPIO_PIN5) #endif -/* UG-2864AMBAG01 OLED Display: +/* UG-2864AMBAG01 or UG-2864HSWEG01 OLED Display: * * --------------------------+---------------------------------------------- * Connector CON10 J1: | STM32F4Discovery @@ -135,7 +135,7 @@ * ------------------------------------------------------------------------- */ -#ifdef CONFIG_LCD_UG2864AMBAG01 +#if defined(CONFIG_LCD_UG2864AMBAG01) || defined(CONFIG_LCD_UG2864HSWEG01) # define GPIO_OLED_RESET (GPIO_OUTPUT|GPIO_PUSHPULL|GPIO_SPEED_50MHz|\ GPIO_OUTPUT_CLEAR|GPIO_PORTB|GPIO_PIN6) # define GPIO_OLED_CS (GPIO_OUTPUT|GPIO_PUSHPULL|GPIO_SPEED_50MHz|\ diff --git a/nuttx/configs/stm32f4discovery/src/up_ug2864hsweg01.c b/nuttx/configs/stm32f4discovery/src/up_ug2864hsweg01.c new file mode 100644 index 0000000000..4eee077a14 --- /dev/null +++ b/nuttx/configs/stm32f4discovery/src/up_ug2864hsweg01.c @@ -0,0 +1,161 @@ +/**************************************************************************** + * config/stm32f4discovery/src/up_ug2864hsweg01.c + * arch/arm/src/board/up_ug2864hsweg01.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-2864hsweg01.h> + +#include "stm32_gpio.h" +#include "stm32f4discovery-internal.h" + +#ifdef CONFIG_LCD_UG2864HSWEG01 + +/**************************************************************************** + * Pre-Processor Definitions + ****************************************************************************/ +/* Configuration ************************************************************/ +/* The pin configurations here require that SPI1 is selected */ + +#ifndef CONFIG_STM32_SPI1 +# error "The OLED driver requires CONFIG_STM32_SPI1 in the configuration" +#endif + +#ifndef CONFIG_SPI_CMDDATA +# error "The OLED driver requires CONFIG_SPI_CMDDATA in the configuration" +#endif + +/* Pin Configuration ********************************************************/ +/* UG-2864AMBAG01 or UG-2864HSWEG01 OLED Display: + * + * --------------------------+---------------------------------------------- + * Connector CON10 J1: | STM32F4Discovery + * --------------+-----------+---------------------------------------------- + * CON10 J1: | CON20 J2: | P1/P2: + * --------------+-----------+---------------------------------------------- + * 1 3v3 | 3,4 3v3 | P2 3V + * 3 /RESET | 8 /RESET | P2 PB6 (Arbitrary selection) + * 5 /CS | 7 /CS | P2 PB7 (Arbitrary selection)(2) + * 7 A0 | 9 A0 | P2 PB8 (Arbitrary selection)(2) + * 9 LED+ (N/C) | ----- | ----- + * 2 5V Vcc | 1,2 Vcc | P2 5V + * 4 DI | 18 D1/SI | P1 PA7 (GPIO_SPI1_MOSI == GPIO_SPI1_MOSI_1 (1)) + * 6 SCLK | 19 D0/SCL | P1 PA5 (GPIO_SPI1_SCK == GPIO_SPI1_SCK_1 (2)) + * 8 LED- (N/C) | ----- | ------ + * 10 GND | 20 GND | P2 GND + * --------------+-----------+---------------------------------------------- + * (1) Required because of on-board MEMS + * (2) Note that the OLED CS and A0 are managed in the up_spi.c file. + * ------------------------------------------------------------------------- + */ + +/* Definitions in stm32f4discovery-internal.h */ + +/* 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; + + /* Configure the OLED GPIOs. This initial configuration is RESET low, + * putting the OLED into reset state. + */ + + (void)stm32_configgpio(GPIO_OLED_RESET); + + /* Wait a bit then release the OLED from the reset state */ + + up_mdelay(20); + stm32_gpiowrite(GPIO_OLED_RESET, true); + + /* 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 = ug2864hsweg01_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 */ diff --git a/nuttx/drivers/lcd/Make.defs b/nuttx/drivers/lcd/Make.defs index 1b445b6a78..067f76f4e3 100644 --- a/nuttx/drivers/lcd/Make.defs +++ b/nuttx/drivers/lcd/Make.defs @@ -51,6 +51,10 @@ ifeq ($(CONFIG_LCD_UG2864AMBAG01),y) CSRCS += ug-2864ambag01.c endif +ifeq ($(CONFIG_LCD_UG2864HSWEG01),y) + CSRCS += ug-2864hsweg01.c +endif + ifeq ($(CONFIG_LCD_UG9664HSWAG01),y) CSRCS += ug-9664hswag01.c endif diff --git a/nuttx/drivers/lcd/ug-2864hsweg01.c b/nuttx/drivers/lcd/ug-2864hsweg01.c new file mode 100644 index 0000000000..9f9f999066 --- /dev/null +++ b/nuttx/drivers/lcd/ug-2864hsweg01.c @@ -0,0 +1,1177 @@ +/************************************************************************************** + * drivers/lcd/ug-2864hsweg01.c + * Driver for Univision UG-2864HSWEG01 OLED display (wih SSD1306 controller) in SPI + * mode + * + * Copyright (C) 2012 Gregory Nutt. All rights reserved. + * Author: Gregory Nutt <gnutt@nuttx.org> + * + * References: + * 1. Product Specification (Preliminary), Part Name: OEL Display Module, Part ID: + * UG-2864HSWEG01, Doc No: SAS1-9046-B, Univision Technology Inc. + * 2. SSD1306, 128 X 64 Dot Matrix OLED/PLED, Preliminary Segment/Common Driver with + * Controller, Solomon Systech + * + * 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. + * + **************************************************************************************/ +/************************************************************************************** + * Device memory organization: + * + * +----------------------------+ + * | Column | + * --------+----+---+---+---+-...-+-----+ + * Page | 0 | 1 | 2 | 3 | ... | 127 | + * --------+----+---+---+---+-...-+-----+ + * Page 0 | D0 | X | | | | | + * | D1 | X | | | | | + * | D2 | X | | | | | + * | D3 | X | | | | | + * | D4 | X | | | | | + * | D5 | X | | | | | + * | D6 | X | | | | | + * | D7 | X | | | | | + * --------+----+---+---+---+-...-+-----+ + * Page 1 | | | | | | | + * --------+----+---+---+---+-...-+-----+ + * Page 2 | | | | | | | + * --------+----+---+---+---+-...-+-----+ + * Page 3 | | | | | | | + * --------+----+---+---+---+-...-+-----+ + * Page 4 | | | | | | | + * --------+----+---+---+---+-...-+-----+ + * Page 5 | | | | | | | + * --------+----+---+---+---+-...-+-----+ + * Page 6 | | | | | | | + * --------+----+---+---+---+-...-+-----+ + * Page 7 | | | | | | | + * --------+----+---+---+---+-...-+-----+ + * + * -----------------------------------+--------------------------------------- + * Landscape Display: | Reverse Landscape Display: + * --------+-----------------------+ | --------+---------------------------+ + * | Column | | | Column | + * --------+---+---+---+-...-+-----+ | --------+-----+-----+-----+-...-+---+ + * Page 0 | 0 | 1 | 2 | | 127 | | Page 7 | 127 | 126 | 125 | | 0 | + * --------+---+---+---+-...-+-----+ | --------+-----+-----+-----+-...-+---+ + * Page 1 | V | | Page 6 | ^ | + * --------+---+---+---+-...-+-----+ | --------+-----+-----+-----+-...-+---+ + * Page 2 | V | | Page 5 | ^ | + * --------+---+---+---+-...-+-----+ | --------+-----+-----+-----+-...-+---+ + * Page 3 | V | | Page 4 | ^ | + * --------+---+---+---+-...-+-----+ | --------+-----+-----+-----+-...-+---+ + * Page 4 | V | | Page 3 | ^ | + * --------+---+---+---+-...-+-----+ | --------+-----+-----+-----+-...-+---+ + * Page 5 | V | | Page 2 | ^ | + * --------+---+---+---+-...-+-----+ | --------+-----+-----+-----+-...-+---+ + * Page 6 | V | | Page 1 | ^ | + * --------+---+---+---+-...-+-----+ | --------+-----+-----+-----+-...-+---+ + * Page 7 | V | | Page 0 | ^ | + * --------+---+---+---+-...-+-----+ | --------+-----+-----+-----+-...-+---+ + * -----------------------------------+--------------------------------------- + * + * -----------------------------------+--------------------------------------- + * Portrait Display: | Reverse Portrait Display: + * -----------+---------------------+ | -----------+---------------------+ + * | Page | | | Page | + * -----------+---+---+---+-...-+---+ | -----------+---+---+---+-...-+---+ + * Column 0 | 0 | 1 | 2 | | 7 | | Column 127 | 7 | 6 | 5 | | 0 | + * -----------+---+---+---+-...-+---+ | -----------+---+---+---+-...-+---+ + * Column 1 | > > > > > | | Column 126 | | + * -----------+---+---+---+-...-+---+ | -----------+---+---+---+-...-+---+ + * Column 2 | | | Column 125 | | + * -----------+---+---+---+-...-+---+ | -----------+---+---+---+-...-+---+ + * ... | | | ... | | + * -----------+---+---+---+-...-+---+ | -----------+---+---+---+-...-+---+ + * Column 127 | | | Column 0 | < < < < < | + * -----------+---+---+---+-...-+---+ | -----------+---+---+---+-...-+---+ + * -----------------------------------+---------------------------------------- + **************************************************************************************/ + +/************************************************************************************** + * Included Files + **************************************************************************************/ + +#include <nuttx/config.h> + +#include <sys/types.h> +#include <stdint.h> +#include <stdbool.h> +#include <string.h> +#include <errno.h> +#include <debug.h> + +#include <nuttx/arch.h> +#include <nuttx/spi.h> +#include <nuttx/lcd/lcd.h> +#include <nuttx/lcd/ug-2864hsweg01.h> + +#include <arch/irq.h> + +#ifdef CONFIG_LCD_UG2864HSWEG01 + +/************************************************************************************** + * Pre-processor Definitions + **************************************************************************************/ +/* Configuration **********************************************************************/ +/* Limitations of the current configuration that I hope to fix someday */ + +#if CONFIG_UG2864HSWEG01_NINTERFACES != 1 +# warning "This implementation supports only a single OLED device" +# undef CONFIG_UG2864HSWEG01_NINTERFACES +# define CONFIG_UG2864HSWEG01_NINTERFACES 1 +#endif + +#if defined(CONFIG_LCD_PORTRAIT) || defined(CONFIG_LCD_RPORTRAIT) +# warning "No support yet for portrait modes" +# define CONFIG_LCD_LANDSCAPE 1 +# undef CONFIG_LCD_PORTRAIT +# undef CONFIG_LCD_RLANDSCAPE +# undef CONFIG_LCD_RPORTRAIT +#elif defined(CONFIG_LCD_RLANDSCAPE) +# warning "Reverse landscape mode is untested and, hence, probably buggy" +#endif + +/* SSD1306 Commands *******************************************************************/ + +#define SSD1306_SETCOLL(ad) (0x00 | ((ad) & 0x0f)) /* Set Lower Column Address: (00h - 0fh) */ +#define SSD1306_SETCOLH(ad) (0x10 | ((ad) & 0x0f)) /* Set Higher Column Address: (10h - 1fh) */ +#define SSD1306_STARTLINE(ln) (0x40 | ((ln) & 0x3f)) /* Set Display Start Line: (40h - 7fh) */ +#define SSD1306_CONTRAST_MODE (0x81) /* Set Contrast Control Register: (Double Bytes Command) */ +# define SSD1306_CONTRAST(c) (c) +#define SSD1306_SEGREMAP(m) (0xa0 | ((m) & 0x01)) /* Set Segment Re-map: (a0h - a1h) */ +# define SSD1306_REMAPRIGHT SSD1306_SEGREMAP(0) /* Right rotation */ +# define SSD1306_REMAPPLEFT SSD1306_SEGREMAP(1) /* Left rotation */ +#define SSD1306_EDISPOFFON(s) (0xa4 | ((s) & 0x01)) /* Set Entire Display OFF/ON: (a4h - a5h) */ +# define SSD1306_EDISPOFF SSD1306_EDISPOFFON(0) /* Display off */ +# define SSD1306_EDISPON SSD1306_EDISPOFFON(1) /* Display on */ +#define SSD1306_NORMREV(s) (0xa6 | ((s) & 0x01)) /* Set Normal/Reverse Display: (a6h -a7h) */ +# define SSD1306_NORMAL SSD1306_NORMREV(0) /* Normal display */ +# define SSD1306_REVERSE SSD1306_NORMREV(1) /* Reverse display */ +#define SSD1306_MRATIO_MODE (0xa8) /* Set Multiplex Ration: (Double Bytes Command) */ +# define SSD1306_MRATIO(d) ((d) & 0x3f) +#define SSD1306_DCDC_MODE (0xad) /* Set DC-DC OFF/ON: (Double Bytes Command) */ +# define SSD1306_DCDC_OFF (0x8a) +# define SSD1306_DCDC_ON (0x8b) + +#define SSD1306_DISPOFFON(s) (0xae | ((s) & 0x01)) /* Display OFF/ON: (aeh - afh) */ +# define SSD1306_DISPOFF SSD1306_DISPOFFON(0) /* Display off */ +# define SSD1306_DISPON SSD1306_DISPOFFON(1) /* Display on */ +#define SSD1306_PAGEADDR(a) (0xb0 | ((a) & 0x0f)) /* Set Page Address: (b0h - b7h) */ +#define SSD1306_SCANDIR(d) (0xc0 | ((d) & 0x08)) /* Set Common Output Scan Direction: (c0h - c8h) */ +# define SSD1306_SCANFROMCOM0 SSD1306_SCANDIR(0x00) /* Scan from COM[0] to COM[n-1]*/ +# define SSD1306_SCANTOCOM0 SSD1306_SCANDIR(0x08) /* Scan from COM[n-1] to COM[0] */ +#define SSD1306_DISPOFFS_MODE (0xd3) /* Set Display Offset: (Double Bytes Command) */ +# define SSD1306_DISPOFFS(o) ((o) & 0x3f) +#define SSD1306_CLKDIV_SET (0xd5) /* Set Display Clock Divide Ratio/Oscillator Frequency: (Double Bytes Command) */ +# define SSD1306_CLKDIV(f,d) ((((f) & 0x0f) << 4) | ((d) & 0x0f)) +#define SSD1306_CHRGPER_SET (0xd9) /* Set Dis-charge/Pre-charge Period: (Double Bytes Command) */ +# define SSD1306_CHRGPER(d,p) ((((d) & 0x0f) << 4) | ((p) & 0x0f)) +#define SSD1306_CMNPAD_CONFIG (0xda) /* Set Common pads hardware configuration: (Double Bytes Command) */ +# define SSD1306_CMNPAD(c) ((0x02) | ((c) & 0x10)) +#define SSD1306_VCOM_SET (0xdb) /* Set VCOM Deselect Level: (Double Bytes Command) */ +# define SSD1306_VCOM(v) (v) + +#define SSD1306_CHRPUMP_SET (0x8d) /* Charge Pump Setting */ +# define SSD1306_CHRPUMP_ON (0x14) +# define SSD1306_CHRPUMP_OFF (0x10) + +#define SSD1306_RMWSTART (0xe0) /* Read-Modify-Write: (e0h) */ +#define SSD1306_NOP (0xe3) /* NOP: (e3h) */ +#define SSD1306_END (0xee) /* End: (eeh) */ + +#define SSD1306_WRDATA(d) (d) /* Write Display Data */ +#define SSD1306_STATUS_BUSY (0x80) /* Read Status */ +#define SSD1306_STATUS_ONOFF (0x40) +#define SSD1306_RDDATA(d) (d) /* Read Display Data */ + +/* Color Properties *******************************************************************/ +/* Display Resolution + * + * The SSD1306 display controller can handle a resolution of 132x64. The UG-2864HSWEG01 + * on the base board is 128x64. + */ + +#define UG2864HSWEG01_DEV_XRES 128 /* Only 128 of 131 columns used */ +#define UG2864HSWEG01_DEV_YRES 64 /* 8 pages each 8 rows */ +#define UG2864HSWEG01_DEV_XOFFSET 2 /* Offset to logical column 0 */ +#define UG2864HSWEG01_DEV_PAGES 8 /* 8 pages */ + +#if defined(CONFIG_LCD_LANDSCAPE) || defined(CONFIG_LCD_RLANDSCAPE) +# define UG2864HSWEG01_XRES UG2864HSWEG01_DEV_XRES +# define UG2864HSWEG01_YRES UG2864HSWEG01_DEV_YRES +#else +# define UG2864HSWEG01_XRES UG2864HSWEG01_DEV_YRES +# define UG2864HSWEG01_YRES UG2864HSWEG01_DEV_XRES +#endif + +/* Color depth and format */ + +#define UG2864HSWEG01_BPP 1 +#define UG2864HSWEG01_COLORFMT FB_FMT_Y1 + +/* Bytes per logical row and actual device row */ + +#define UG2864HSWEG01_XSTRIDE (UG2864HSWEG01_XRES >> 3) +#define UG2864HSWEG01_YSTRIDE (UG2864HSWEG01_YRES >> 3) + +/* Default contrast */ + +#define UG2864HSWEG01_CONTRAST (128) + +/* The size of the shadow frame buffer or one row buffer. + * + * Frame buffer size: 128 columns x 64 rows / 8 bits-per-pixel + * Row size: 128 columns x 8 rows-per-page / 8 bits-per-pixel + */ + +#define UG2864HSWEG01_FBSIZE (UG2864HSWEG01_XSTRIDE * UG2864HSWEG01_YRES) +#define UG2864HSWEG01_ROWSIZE (UG2864HSWEG01_XSTRIDE) + +/* Bit helpers */ + +#define LS_BIT (1 << 0) +#define MS_BIT (1 << 7) + +/* 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 + +/************************************************************************************** + * Private Type Definition + **************************************************************************************/ + +/* This structure describes the state of this driver */ + +struct ug2864hsweg01_dev_s +{ + struct lcd_dev_s dev; /* Publically visible device structure */ + + /* Private LCD-specific information follows */ + + FAR struct spi_dev_s *spi; /* Cached SPI device reference */ + uint8_t contrast; /* Current contrast setting */ + bool on; /* true: display is on */ + + + /* The SSD1306 does not support reading from the display memory in SPI mode. + * Since there is 1 BPP and access is byte-by-byte, it is necessary to keep + * a shadow copy of the framebuffer memory. At 128x64, this amounts to 1KB. + */ + + uint8_t fb[UG2864HSWEG01_FBSIZE]; +}; + +/************************************************************************************** + * Private Function Protototypes + **************************************************************************************/ + +/* Low-level SPI helpers */ + +#ifdef CONFIG_SPI_OWNBUS +static inline void ug2864hsweg01_configspi(FAR struct spi_dev_s *spi); +# define ug2864hsweg01_lock(spi) +# define ug2864hsweg01_unlock(spi) +#else +# define ug2864hsweg01_configspi(spi) +static void ug2864hsweg01_lock(FAR struct spi_dev_s *spi); +static void ug2864hsweg01_unlock(FAR struct spi_dev_s *spi); +#endif + +/* LCD Data Transfer Methods */ + +static int ug2864hsweg01_putrun(fb_coord_t row, fb_coord_t col, + FAR const uint8_t *buffer, size_t npixels); +static int ug2864hsweg01_getrun(fb_coord_t row, fb_coord_t col, FAR uint8_t *buffer, + size_t npixels); + +/* LCD Configuration */ + +static int ug2864hsweg01_getvideoinfo(FAR struct lcd_dev_s *dev, + FAR struct fb_videoinfo_s *vinfo); +static int ug2864hsweg01_getplaneinfo(FAR struct lcd_dev_s *dev, unsigned int planeno, + FAR struct lcd_planeinfo_s *pinfo); + +/* LCD RGB Mapping */ + +#ifdef CONFIG_FB_CMAP +# error "RGB color mapping not supported by this driver" +#endif + +/* Cursor Controls */ + +#ifdef CONFIG_FB_HWCURSOR +# error "Cursor control not supported by this driver" +#endif + +/* LCD Specific Controls */ + +static int ug2864hsweg01_getpower(struct lcd_dev_s *dev); +static int ug2864hsweg01_setpower(struct lcd_dev_s *dev, int power); +static int ug2864hsweg01_getcontrast(struct lcd_dev_s *dev); +static int ug2864hsweg01_setcontrast(struct lcd_dev_s *dev, unsigned int contrast); + +/************************************************************************************** + * Private Data + **************************************************************************************/ + +/* This is working memory allocated by the LCD driver for each LCD device + * and for each color plane. This memory will hold one raster line of data. + * The size of the allocated run buffer must therefore be at least + * (bpp * xres / 8). Actual alignment of the buffer must conform to the + * bitwidth of the underlying pixel type. + * + * If there are multiple planes, they may share the same working buffer + * because different planes will not be operate on concurrently. However, + * if there are multiple LCD devices, they must each have unique run buffers. + */ + +static uint8_t g_runbuffer[UG2864HSWEG01_ROWSIZE]; + +/* This structure describes the overall LCD video controller */ + +static const struct fb_videoinfo_s g_videoinfo = +{ + .fmt = UG2864HSWEG01_COLORFMT, /* Color format: RGB16-565: RRRR RGGG GGGB BBBB */ + .xres = UG2864HSWEG01_XRES, /* Horizontal resolution in pixel columns */ + .yres = UG2864HSWEG01_YRES, /* Vertical resolution in pixel rows */ + .nplanes = 1, /* Number of color planes supported */ +}; + +/* This is the standard, NuttX Plane information object */ + +static const struct lcd_planeinfo_s g_planeinfo = +{ + .putrun = ug2864hsweg01_putrun, /* Put a run into LCD memory */ + .getrun = ug2864hsweg01_getrun, /* Get a run from LCD memory */ + .buffer = (uint8_t*)g_runbuffer, /* Run scratch buffer */ + .bpp = UG2864HSWEG01_BPP, /* Bits-per-pixel */ +}; + +/* This is the OLED driver instance (only a single device is supported for now) */ + +static struct ug2864hsweg01_dev_s g_oleddev = +{ + .dev = + { + /* LCD Configuration */ + + .getvideoinfo = ug2864hsweg01_getvideoinfo, + .getplaneinfo = ug2864hsweg01_getplaneinfo, + + /* LCD RGB Mapping -- Not supported */ + /* Cursor Controls -- Not supported */ + + /* LCD Specific Controls */ + + .getpower = ug2864hsweg01_getpower, + .setpower = ug2864hsweg01_setpower, + .getcontrast = ug2864hsweg01_getcontrast, + .setcontrast = ug2864hsweg01_setcontrast, + }, +}; + +/************************************************************************************** + * Private Functions + **************************************************************************************/ + +/************************************************************************************** + * Name: ug2864hsweg01_configspi + * + * Description: + * Configure the SPI for use with the UG-2864HSWEG01 + * + * Input Parameters: + * spi - Reference to the SPI driver structure + * + * Returned Value: + * None + * + * Assumptions: + * + **************************************************************************************/ + +#ifdef CONFIG_SPI_OWNBUS +static inline void ug2864hsweg01_configspi(FAR struct spi_dev_s *spi) +{ + lcdvdbg("Mode: %d Bits: 8 Frequency: %d\n", + CONFIG_UG2864HSWEG01_SPIMODE, CONFIG_UG2864HSWEG01_FREQUENCY); + + /* Configure SPI for the UG-2864HSWEG01. But only if we own the SPI bus. Otherwise, + * don't bother because it might change. + */ + + SPI_SETMODE(spi, CONFIG_UG2864HSWEG01_SPIMODE); + SPI_SETBITS(spi, 8); + SPI_SETFREQUENCY(spi, CONFIG_UG2864HSWEG01_FREQUENCY) +} +#endif + +/************************************************************************************** + * Name: ug2864hsweg01_lock + * + * Description: + * Select the SPI, locking and re-configuring if necessary + * + * Input Parameters: + * spi - Reference to the SPI driver structure + * + * Returned Value: + * None + * + * Assumptions: + * + **************************************************************************************/ + +#ifndef CONFIG_SPI_OWNBUS +static inline void ug2864hsweg01_lock(FAR struct spi_dev_s *spi) +{ + /* Lock the SPI bus if there are multiple devices competing for the SPI bus. */ + + SPI_LOCK(spi, true); + + /* Now make sure that the SPI bus is configured for the UG-2864HSWEG01 (it + * might have gotten configured for a different device while unlocked) + */ + + SPI_SETMODE(spi, CONFIG_UG2864HSWEG01_SPIMODE); + SPI_SETBITS(spi, 8); + SPI_SETFREQUENCY(spi, CONFIG_UG2864HSWEG01_FREQUENCY); +} +#endif + +/************************************************************************************** + * Name: ug2864hsweg01_unlock + * + * Description: + * De-select the SPI + * + * Input Parameters: + * spi - Reference to the SPI driver structure + * + * Returned Value: + * None + * + * Assumptions: + * + **************************************************************************************/ + +#ifndef CONFIG_SPI_OWNBUS +static inline void ug2864hsweg01_unlock(FAR struct spi_dev_s *spi) +{ + /* De-select UG-2864HSWEG01 chip and relinquish the SPI bus. */ + + SPI_LOCK(spi, false); +} +#endif + +/************************************************************************************** + * Name: ug2864hsweg01_putrun + * + * Description: + * This method can be used to write a partial raster line to the LCD. + * + * Input Parameters: + * row - Starting row to write to (range: 0 <= row < yres) + * col - Starting column to write to (range: 0 <= col <= xres-npixels) + * buffer - The buffer containing the run to be written to the LCD + * npixels - The number of pixels to write to the LCD + * (range: 0 < npixels <= xres-col) + * + **************************************************************************************/ + +#if defined(CONFIG_LCD_LANDSCAPE) || defined(CONFIG_LCD_RLANDSCAPE) +static int ug2864hsweg01_putrun(fb_coord_t row, fb_coord_t col, FAR const uint8_t *buffer, + size_t npixels) +{ + /* Because of this line of code, we will only be able to support a single UG device */ + + FAR struct ug2864hsweg01_dev_s *priv = (FAR struct ug2864hsweg01_dev_s *)&g_oleddev; + FAR uint8_t *fbptr; + FAR uint8_t *ptr; + uint8_t devcol; + uint8_t fbmask; + uint8_t page; + uint8_t usrmask; + int pixlen; + uint8_t i; + + lcdvdbg("row: %d col: %d npixels: %d\n", row, col, npixels); + DEBUGASSERT(buffer); + + /* Clip the run to the display */ + + pixlen = npixels; + if ((unsigned int)col + (unsigned int)pixlen > (unsigned int)UG2864HSWEG01_XRES) + { + pixlen = (int)UG2864HSWEG01_XRES - (int)col; + } + + /* Verify that some portion of the run remains on the display */ + + if (pixlen <= 0 || row > UG2864HSWEG01_YRES) + { + return OK; + } + + /* Perform coordinate conversion for reverse landscape mode */ + +#ifdef CONFIG_LCD_RLANDSCAPE + row = (UG2864HSWEG01_YRES-1) - row; + col = (UG2864HSWEG01_XRES-1) - col; +#endif + + /* Get the page number. The range of 64 lines is divided up into eight + * pages of 8 lines each. + */ + + page = row >> 3; + + /* Update the shadow frame buffer memory. First determine the pixel + * position in the frame buffer memory. Pixels are organized like + * this: + * + * --------+---+---+---+---+-...-+-----+ + * Segment | 0 | 1 | 2 | 3 | ... | 131 | + * --------+---+---+---+---+-...-+-----+ + * D0 | | X | | | | | + * D1 | | X | | | | | + * D2 | | X | | | | | + * D3 | | X | | | | | + * D4 | | X | | | | | + * D5 | | X | | | | | + * D6 | | X | | | | | + * D7 | | X | | | | | + * --------+---+---+---+---+-...-+-----+ + * + * So, in order to draw a white, horizontal line, at row 45. we + * would have to modify all of the bytes in page 45/8 = 5. We + * would have to set bit 45%8 = 5 in every byte in the page. + */ + + fbmask = 1 << (row & 7); + fbptr = &priv->fb[page * UG2864HSWEG01_XRES + col]; +#ifdef CONFIG_LCD_RLANDSCAPE + ptr = fbptr + pixlen - 1; +#else + ptr = fbptr; +#endif +#ifdef CONFIG_NX_PACKEDMSFIRST + usrmask = MS_BIT; +#else + usrmask = LS_BIT; +#endif + + for (i = 0; i < pixlen; i++) + { + /* Set or clear the corresponding bit */ + +#ifdef CONFIG_LCD_RLANDSCAPE + if ((*buffer & usrmask) != 0) + { + *ptr-- |= fbmask; + } + else + { + *ptr-- &= ~fbmask; + } +#else + if ((*buffer & usrmask) != 0) + { + *ptr++ |= fbmask; + } + else + { + *ptr++ &= ~fbmask; + } +#endif + + /* Inc/Decrement to the next source pixel */ + +#ifdef CONFIG_NX_PACKEDMSFIRST + if (usrmask == LS_BIT) + { + buffer++; + usrmask = MS_BIT; + } + else + { + usrmask >>= 1; + } +#else + if (usrmask == MS_BIT) + { + buffer++; + usrmask = LS_BIT; + } + else + { + usrmask <<= 1; + } +#endif + } + + /* Offset the column position to account for smaller horizontal + * display range. + */ + + devcol = col + UG2864HSWEG01_DEV_XOFFSET; + + /* Lock and select device */ + + ug2864hsweg01_lock(priv->spi); + SPI_SELECT(priv->spi, SPIDEV_DISPLAY, true); + + /* Select command transfer */ + + SPI_CMDDATA(priv->spi, SPIDEV_DISPLAY, true); + + /* Set the starting position for the run */ + /* Set the column address to the XOFFSET value */ + + SPI_SEND(priv->spi, SSD1306_SETCOLL(devcol & 0x0f)); + SPI_SEND(priv->spi, SSD1306_SETCOLH(devcol >> 4)); + + /* Set the page address */ + + SPI_SEND(priv->spi, SSD1306_PAGEADDR(page)); + + /* Select data transfer */ + + SPI_CMDDATA(priv->spi, SPIDEV_DISPLAY, false); + + /* Then transfer all of the data */ + + (void)SPI_SNDBLOCK(priv->spi, fbptr, pixlen); + + /* De-select and unlock the device */ + + SPI_SELECT(priv->spi, SPIDEV_DISPLAY, false); + ug2864hsweg01_unlock(priv->spi); + return OK; +} +#else +# error "Configuration not implemented" +#endif + +/************************************************************************************** + * Name: ug2864hsweg01_getrun + * + * Description: + * This method can be used to read a partial raster line from the LCD: + * + * Description: + * This method can be used to write a partial raster line to the LCD. + * + * row - Starting row to read from (range: 0 <= row < yres) + * col - Starting column to read read (range: 0 <= col <= xres-npixels) + * buffer - The buffer in which to return the run read from the LCD + * npixels - The number of pixels to read from the LCD + * (range: 0 < npixels <= xres-col) + * + **************************************************************************************/ + +#if defined(CONFIG_LCD_LANDSCAPE) || defined(CONFIG_LCD_RLANDSCAPE) +static int ug2864hsweg01_getrun(fb_coord_t row, fb_coord_t col, FAR uint8_t *buffer, + size_t npixels) +{ + /* Because of this line of code, we will only be able to support a single UG device */ + + FAR struct ug2864hsweg01_dev_s *priv = &g_oleddev; + FAR uint8_t *fbptr; + uint8_t page; + uint8_t fbmask; + uint8_t usrmask; + int pixlen; + uint8_t i; + + lcdvdbg("row: %d col: %d npixels: %d\n", row, col, npixels); + DEBUGASSERT(buffer); + + /* Clip the run to the display */ + + pixlen = npixels; + if ((unsigned int)col + (unsigned int)pixlen > (unsigned int)UG2864HSWEG01_XRES) + { + pixlen = (int)UG2864HSWEG01_XRES - (int)col; + } + + /* Verify that some portion of the run is actually the display */ + + if (pixlen <= 0 || row > UG2864HSWEG01_YRES) + { + return -EINVAL; + } + + /* Perform coordinate conversion for reverse landscape mode */ + +#ifdef CONFIG_LCD_RLANDSCAPE + row = (UG2864HSWEG01_YRES-1) - row; + col = (UG2864HSWEG01_XRES-1) - col; +#endif + + /* Then transfer the display data from the shadow frame buffer memory */ + /* Get the page number. The range of 64 lines is divided up into eight + * pages of 8 lines each. + */ + + page = row >> 3; + + /* Update the shadow frame buffer memory. First determine the pixel + * position in the frame buffer memory. Pixels are organized like + * this: + * + * --------+---+---+---+---+-...-+-----+ + * Segment | 0 | 1 | 2 | 3 | ... | 131 | + * --------+---+---+---+---+-...-+-----+ + * D0 | | X | | | | | + * D1 | | X | | | | | + * D2 | | X | | | | | + * D3 | | X | | | | | + * D4 | | X | | | | | + * D5 | | X | | | | | + * D6 | | X | | | | | + * D7 | | X | | | | | + * --------+---+---+---+---+-...-+-----+ + * + * So, in order to draw a white, horizontal line, at row 45. we + * would have to modify all of the bytes in page 45/8 = 5. We + * would have to set bit 45%8 = 5 in every byte in the page. + */ + + fbmask = 1 << (row & 7); +#ifdef CONFIG_LCD_RLANDSCAPE + fbptr = &priv->fb[page * (UG2864HSWEG01_XRES-1) + col + pixlen]; +#else + fbptr = &priv->fb[page * UG2864HSWEG01_XRES + col]; +#endif +#ifdef CONFIG_NX_PACKEDMSFIRST + usrmask = MS_BIT; +#else + usrmask = LS_BIT; +#endif + + *buffer = 0; + for (i = 0; i < pixlen; i++) + { + /* Set or clear the corresponding bit */ + +#ifdef CONFIG_LCD_RLANDSCAPE + uint8_t byte = *fbptr--; +#else + uint8_t byte = *fbptr++; +#endif + if ((byte & fbmask) != 0) + { + *buffer |= usrmask; + } + + /* Inc/Decrement to the next destination pixel. Hmmmm. It looks like + * this logic could write past the end of the user buffer. Revisit + * this! + */ + +#ifdef CONFIG_NX_PACKEDMSFIRST + if (usrmask == LS_BIT) + { + buffer++; + *buffer = 0; + usrmask = MS_BIT; + } + else + { + usrmask >>= 1; + } +#else + if (usrmask == MS_BIT) + { + buffer++; + *buffer = 0; + usrmask = LS_BIT; + } + else + { + usrmask <<= 1; + } +#endif + } + + return OK; +} +#else +# error "Configuration not implemented" +#endif + +/************************************************************************************** + * Name: ug2864hsweg01_getvideoinfo + * + * Description: + * Get information about the LCD video controller configuration. + * + **************************************************************************************/ + +static int ug2864hsweg01_getvideoinfo(FAR struct lcd_dev_s *dev, + FAR struct fb_videoinfo_s *vinfo) +{ + DEBUGASSERT(dev && vinfo); + lcdvdbg("fmt: %d xres: %d yres: %d nplanes: %d\n", + g_videoinfo.fmt, g_videoinfo.xres, g_videoinfo.yres, g_videoinfo.nplanes); + memcpy(vinfo, &g_videoinfo, sizeof(struct fb_videoinfo_s)); + return OK; +} + +/************************************************************************************** + * Name: ug2864hsweg01_getplaneinfo + * + * Description: + * Get information about the configuration of each LCD color plane. + * + **************************************************************************************/ + +static int ug2864hsweg01_getplaneinfo(FAR struct lcd_dev_s *dev, unsigned int planeno, + FAR struct lcd_planeinfo_s *pinfo) +{ + DEBUGASSERT(pinfo && planeno == 0); + lcdvdbg("planeno: %d bpp: %d\n", planeno, g_planeinfo.bpp); + memcpy(pinfo, &g_planeinfo, sizeof(struct lcd_planeinfo_s)); + return OK; +} + +/************************************************************************************** + * Name: ug2864hsweg01_getpower + * + * Description: + * Get the LCD panel power status (0: full off - CONFIG_LCD_MAXPOWER: full on. On + * backlit LCDs, this setting may correspond to the backlight setting. + * + **************************************************************************************/ + +static int ug2864hsweg01_getpower(FAR struct lcd_dev_s *dev) +{ + FAR struct ug2864hsweg01_dev_s *priv = (FAR struct ug2864hsweg01_dev_s *)dev; + DEBUGASSERT(priv); + + lcdvdbg("power: %s\n", priv->on ? "ON" : "OFF"); + return priv->on ? CONFIG_LCD_MAXPOWER : 0; +} + +/************************************************************************************** + * Name: ug2864hsweg01_setpower + * + * Description: + * Enable/disable LCD panel power (0: full off - CONFIG_LCD_MAXPOWER: full on). On + * backlit LCDs, this setting may correspond to the backlight setting. + * + **************************************************************************************/ + +static int ug2864hsweg01_setpower(struct lcd_dev_s *dev, int power) +{ + struct ug2864hsweg01_dev_s *priv = (struct ug2864hsweg01_dev_s *)dev; + DEBUGASSERT(priv && (unsigned)power <= CONFIG_LCD_MAXPOWER && priv->spi); + + lcdvdbg("power: %d [%d]\n", power, priv->on ? CONFIG_LCD_MAXPOWER : 0); + + /* Lock and select device */ + + ug2864hsweg01_lock(priv->spi); + SPI_SELECT(priv->spi, SPIDEV_DISPLAY, true); + + if (power <= 0) + { + /* Turn the display off */ + + (void)SPI_SEND(priv->spi, SSD1306_DISPOFF); + priv->on = false; + } + else + { + /* Turn the display on */ + + (void)SPI_SEND(priv->spi, SSD1306_DISPON); /* Display on, dim mode */ + priv->on = true; + } + + /* De-select and unlock the device */ + + SPI_SELECT(priv->spi, SPIDEV_DISPLAY, false); + ug2864hsweg01_unlock(priv->spi); + return OK; +} + +/************************************************************************************** + * Name: ug2864hsweg01_getcontrast + * + * Description: + * Get the current contrast setting (0-CONFIG_LCD_MAXCONTRAST). + * + **************************************************************************************/ + +static int ug2864hsweg01_getcontrast(struct lcd_dev_s *dev) +{ + struct ug2864hsweg01_dev_s *priv = (struct ug2864hsweg01_dev_s *)dev; + DEBUGASSERT(priv); + + lcdvdbg("contrast: %d\n", priv->contrast); + return priv->contrast; +} + +/************************************************************************************** + * Name: ug2864hsweg01_setcontrast + * + * Description: + * Set LCD panel contrast (0-CONFIG_LCD_MAXCONTRAST). + * + **************************************************************************************/ + +static int ug2864hsweg01_setcontrast(struct lcd_dev_s *dev, unsigned int contrast) +{ + struct ug2864hsweg01_dev_s *priv = (struct ug2864hsweg01_dev_s *)dev; + unsigned int scaled; + + lcdvdbg("contrast: %d\n", contrast); + DEBUGASSERT(priv); + + /* Verify the contrast value */ + +#ifdef CONFIG_DEBUG + if (contrast > CONFIG_LCD_MAXCONTRAST) + { + return -EINVAL; + } +#endif + + /* Scale contrast: newcontrast = 255 * contrast / CONFIG_LCD_MAXCONTRAST + * Where contrast is in the range {1,255} + */ + +#if CONFIG_LCD_MAXCONTRAST != 255 + scaled = ((contrast << 8) - 1) / CONFIG_LCD_MAXCONTRAST; +#else + scaled = contrast; +#endif + + /* Lock and select device */ + + ug2864hsweg01_lock(priv->spi); + SPI_SELECT(priv->spi, SPIDEV_DISPLAY, true); + + /* Select command transfer */ + + SPI_CMDDATA(priv->spi, SPIDEV_DISPLAY, true); + + /* Set the contrast */ + + (void)SPI_SEND(priv->spi, SSD1306_CONTRAST_MODE); /* Set contrast control register */ + (void)SPI_SEND(priv->spi, SSD1306_CONTRAST(scaled)); /* Data 1: Set 1 of 256 contrast steps */ + priv->contrast = contrast; + + /* De-select and unlock the device */ + + SPI_SELECT(priv->spi, SPIDEV_DISPLAY, false); + ug2864hsweg01_unlock(priv->spi); + return OK; +} + +/************************************************************************************** + * Public Functions + **************************************************************************************/ + +/************************************************************************************** + * Name: ug2864hsweg01_initialize + * + * Description: + * Initialize the UG-2864HSWEG01 video hardware. The initial state of the + * OLED is fully initialized, display memory cleared, and the OLED ready + * to use, but with the power setting at 0 (full off == sleep mode). + * + * Input Parameters: + * + * spi - A reference to the SPI driver instance. + * devno - A value in the range of 0 through CONFIG_UG2864HSWEG01_NINTERFACES-1. + * This allows support for multiple OLED devices. + * + * Returned Value: + * + * On success, this function returns a reference to the LCD object for + * the specified OLED. NULL is returned on any failure. + * + **************************************************************************************/ + +FAR struct lcd_dev_s *ug2864hsweg01_initialize(FAR struct spi_dev_s *spi, unsigned int devno) +{ + FAR struct ug2864hsweg01_dev_s *priv = &g_oleddev; + + lcdvdbg("Initializing\n"); + DEBUGASSERT(spi && devno == 0); + + /* Save the reference to the SPI device */ + + priv->spi = spi; + + /* Configure the SPI */ + + ug2864hsweg01_configspi(spi) + + /* Lock and select device */ + + ug2864hsweg01_lock(priv->spi); + SPI_SELECT(spi, SPIDEV_DISPLAY, true); + + /* Select command transfer */ + + SPI_CMDDATA(spi, SPIDEV_DISPLAY, true); + + /* Configure the device */ + + SPI_SEND(spi, SSD1306_DISPOFF); /* Display off 0xAE*/ + SPI_SEND(spi, SSD1306_SETCOLL(0)); /* Set lower column address 0x00 */ + SPI_SEND(spi, SSD1306_SETCOLH(0)); /* Set higher column address 0x10 */ + SPI_SEND(spi, SSD1306_STARTLINE(0)); /* Set display start line 0x40*/ + SPI_SEND(spi, SSD1306_PAGEADDR(0)); /* Set page address [¿ÉºöÂÔ] */ + SPI_SEND(spi, SSD1306_CONTRAST_MODE); /* Contrast control 0x81*/ + SPI_SEND(spi ,SSD1306_CONTRAST(UG2864HSWEG01_CONTRAST)); /* Default contrast 0xCF */ + SPI_SEND(spi, SSD1306_REMAPPLEFT); /* Set segment remap left 95 to 0 | 0xA1*/ + SPI_SEND(spi, SSD1306_EDISPOFF); /* Normal display :off 0xA4 [¶à³öµÄÒ»ÐÐ] */ + SPI_SEND(spi, SSD1306_NORMAL); /* Normal (un-reversed) display mode 0xA6 */ + SPI_SEND(spi, SSD1306_MRATIO_MODE); /* Multiplex ratio 0xA8*/ + SPI_SEND(spi, SSD1306_MRATIO(0x3f)); /* Duty = 1/64 */ + SPI_SEND(spi, SSD1306_SCANTOCOM0); /* Com scan direction: Scan from COM[n-1] to COM[0] [¿ÉºöÂÔ] */ + SPI_SEND(spi, SSD1306_DISPOFFS_MODE); /* Set display offset 0xD3 */ + SPI_SEND(spi, SSD1306_DISPOFFS(0)); + SPI_SEND(spi, SSD1306_CLKDIV_SET); /* Set clock divider 0xD5*/ + SPI_SEND(spi, SSD1306_CLKDIV(8,0)); /* 0x80 ? ¼ì²é ĬÈÏ0,0*/ + + SPI_SEND(spi, SSD1306_CHRGPER_SET); /* ++Set pre-charge period 0xD9*/ + SPI_SEND(spi, SSD1306_CHRGPER(0x0f,1)); /* 0xf1 or 0x22£¨Ôöǿģʽ£¿£© */ + + SPI_SEND(spi, SSD1306_CMNPAD_CONFIG); /* Set common pads / set com pins hardware configuration 0xDA*/ + SPI_SEND(spi, SSD1306_CMNPAD(0x12)); /* 0x12 ? ¼ì²é ĬÈÏ 0x10 */ + + SPI_SEND(spi, SSD1306_VCOM_SET); /* set vcomh 0xDB*/ + SPI_SEND(spi, SSD1306_VCOM(0x40)); + + SPI_SEND(spi, SSD1306_CHRPUMP_SET); /* ++Set Charge Pump enable/disable 0x8D Ôö¼ÓµÄ*/ + SPI_SEND(spi, SSD1306_CHRPUMP_ON); /* 0x14 */ + + //SPI_SEND(spi, SSD1306_DCDC_MODE); /* DC/DC control mode: on */ + //SPI_SEND(spi, SSD1306_DCDC_ON); + + SPI_SEND(spi, SSD1306_DISPON); /* display ON 0xAF */ + + /* De-select and unlock the device */ + + SPI_SELECT(spi, SPIDEV_DISPLAY, false); + ug2864hsweg01_unlock(priv->spi); + + /* Clear the display */ + + up_mdelay(100); + ug2864hsweg01_fill(&priv->dev, UG_Y1_BLACK); + return &priv->dev; +} + +/************************************************************************************** + * Name: ug2864hsweg01_fill + * + * Description: + * This non-standard method can be used to clear the entire display by writing one + * color to the display. This is much faster than writing a series of runs. + * + * Input Parameters: + * priv - Reference to private driver structure + * + * Assumptions: + * Caller has selected the OLED section. + * + **************************************************************************************/ + +void ug2864hsweg01_fill(FAR struct lcd_dev_s *dev, uint8_t color) +{ + FAR struct ug2864hsweg01_dev_s *priv = &g_oleddev; + unsigned int page; + + /* Make an 8-bit version of the selected color */ + + if (color & 1) + { + color = 0xff; + } + else + { + color = 0; + } + + /* Initialize the framebuffer */ + + memset(priv->fb, color, UG2864HSWEG01_FBSIZE); + + /* Lock and select device */ + + ug2864hsweg01_lock(priv->spi); + SPI_SELECT(priv->spi, SPIDEV_DISPLAY, true); + + /* Visit each page */ + + for (page = 0; page < UG2864HSWEG01_DEV_PAGES; page++) + { + /* Select command transfer */ + + SPI_CMDDATA(priv->spi, SPIDEV_DISPLAY, true); + + /* Set the column address to the XOFFSET value */ + + SPI_SEND(priv->spi, SSD1306_SETCOLL(UG2864HSWEG01_DEV_XOFFSET)); + SPI_SEND(priv->spi, SSD1306_SETCOLH(0)); + + /* Set the page address */ + + SPI_SEND(priv->spi, SSD1306_PAGEADDR(page)); + + /* Select data transfer */ + + SPI_CMDDATA(priv->spi, SPIDEV_DISPLAY, false); + + /* Transfer one page of the selected color */ + + (void)SPI_SNDBLOCK(priv->spi, &priv->fb[page * UG2864HSWEG01_XRES], + UG2864HSWEG01_XRES); + } + + /* De-select and unlock the device */ + + SPI_SELECT(priv->spi, SPIDEV_DISPLAY, false); + ug2864hsweg01_unlock(priv->spi); +} + +#endif /* CONFIG_LCD_UG2864HSWEG01 */ diff --git a/nuttx/drivers/usbhost/usbhost_hidkbd.c b/nuttx/drivers/usbhost/usbhost_hidkbd.c index e0c4680ebb..5022793cac 100644 --- a/nuttx/drivers/usbhost/usbhost_hidkbd.c +++ b/nuttx/drivers/usbhost/usbhost_hidkbd.c @@ -1027,6 +1027,7 @@ static int usbhost_kbdpoll(int argc, char *argv[]) /* Loop here until the device is disconnected */ uvdbg("Entering poll loop\n"); + while (!priv->disconnected) { /* Make sure that we have exclusive access to the private data @@ -1169,10 +1170,10 @@ static int usbhost_kbdpoll(int argc, char *argv[]) #endif } - /* Did we just transition from no data available to data available? */ + /* Is there data available? */ newstate = (priv->headndx == priv->tailndx); - if (empty && !newstate) + if (!newstate) { /* Yes.. Is there a thread waiting for keyboard data now? */ @@ -1184,9 +1185,15 @@ static int usbhost_kbdpoll(int argc, char *argv[]) priv->waiting = false; } - /* And wake up any threads waiting for the POLLIN event */ + /* Did we just transition from no data available to data + * available? If so, wake up any threads waiting for the + * POLLIN event. + */ - usbhost_pollnotify(priv); + if (empty) + { + usbhost_pollnotify(priv); + } } empty = newstate; @@ -2146,6 +2153,7 @@ static ssize_t usbhost_read(FAR struct file *filep, FAR char *buffer, size_t len /* Wait for data to be available */ uvdbg("Waiting...\n"); + priv->waiting = true; usbhost_givesem(&priv->exclsem); usbhost_takesem(&priv->waitsem); diff --git a/nuttx/include/nuttx/lcd/ug-2864hsweg01.h b/nuttx/include/nuttx/lcd/ug-2864hsweg01.h new file mode 100644 index 0000000000..bbefd39be0 --- /dev/null +++ b/nuttx/include/nuttx/lcd/ug-2864hsweg01.h @@ -0,0 +1,245 @@ +/************************************************************************************** + * include/nuttx/lcd/ug-2864hsweg01.h + * Driver for Univision UG-2864HSWEG01 OLED display (wih SSD1306 controller) in SPI + * mode + * + * Copyright (C) 2012 Gregory Nutt. All rights reserved. + * Author: Gregory Nutt <gnutt@nuttx.org> + * + * References: + * 1. Product Specification (Preliminary), Part Name: OEL Display Module, Part ID: + * UG-2864HSWEG01, Doc No: SAS1-9046-B, Univision Technology Inc. + * 2. SSD1306, 128 X 64 Dot Matrix OLED/PLED, Preliminary Segment/Common Driver with + * Controller, Solomon Systech + * + * 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. + * + **************************************************************************************/ + +#ifndef __INCLUDE_NUTTX_UG_8264HSWEG01_H +#define __INCLUDE_NUTTX_UG_8264HSWEG01_H + +/************************************************************************************** + * Included Files + **************************************************************************************/ + +#include <nuttx/config.h> + +#include <stdbool.h> + +#include <nuttx/arch.h> + +#ifdef CONFIG_LCD_UG2864HSWEG01 + +/************************************************************************************** + * Pre-processor Definitions + **************************************************************************************/ +/* Configuration **********************************************************************/ +/* UG-2864HSWEG01 Configuration Settings: + * + * CONFIG_UG2864HSWEG01_SPIMODE - Controls the SPI mode + * CONFIG_UG2864HSWEG01_FREQUENCY - Define to use a different bus frequency + * CONFIG_UG2864HSWEG01_NINTERFACES - Specifies the number of physical UG-2864HSWEG01 + * devices that will be supported. + * + * Required LCD driver settings: + * + * CONFIG_LCD_UG28HSWEG01 - Enable UG-2864HSWEG01 support + * CONFIG_LCD_MAXCONTRAST should be 255, but any value >0 and <=255 will be accepted. + * CONFIG_LCD_MAXPOWER must be 1 + * + * Option LCD driver settings: + * CONFIG_LCD_LANDSCAPE, CONFIG_LCD_PORTRAIT, CONFIG_LCD_RLANDSCAPE, and + * CONFIG_LCD_RPORTRAIT - Display orientation. + * + * Required SPI driver settings: + * CONFIG_SPI_CMDDATA - Include support for cmd/data selection. + */ + +/* SPI Interface + * + * "The serial interface consists of serial clock SCL, serial data SI, A0 and + * CS . SI is shifted into an 8-bit shift register on every rising edge of + * SCL in the order of D7, D6, … and D0. A0 is sampled on every eighth clock + * and the data byte in the shift register is written to the display data RAM + * or command register in the same clock." + * + * MODE 3: + * Clock polarity: High (CPOL=1) + * Clock phase: Sample on trailing (rising edge) (CPHA 1) + */ + +#ifndef CONFIG_UG2864HSWEG01_SPIMODE +# define CONFIG_UG2864HSWEG01_SPIMODE SPIDEV_MODE3 +#endif + +/* "This module determines whether the input data is interpreted as data or + * command. When A0 = “H”, the inputs at D7 - D0 are interpreted as data and be + * written to display RAM. When A0 = “L”, the inputs at D7 - D0 are interpreted + * as command, they will be decoded and be written to the corresponding command + * registers. + */ + +#ifndef CONFIG_SPI_CMDDATA +# error "CONFIG_SPI_CMDDATA must be defined in your NuttX configuration" +#endif + +/* CONFIG_UG2864HSWEG01_NINTERFACES determines the number of physical interfaces + * that will be supported. + */ + +#ifndef CONFIG_UG2864HSWEG01_NINTERFACES +# define CONFIG_UG2864HSWEG01_NINTERFACES 1 +#endif + +/* Check contrast selection */ + +#if !defined(CONFIG_LCD_MAXCONTRAST) +# define CONFIG_LCD_MAXCONTRAST 255 +#endif + +#if CONFIG_LCD_MAXCONTRAST <= 0|| CONFIG_LCD_MAXCONTRAST > 255 +# error "CONFIG_LCD_MAXCONTRAST exceeds supported maximum" +#endif + +#if CONFIG_LCD_MAXCONTRAST < 255 +# warning "Optimal setting of CONFIG_LCD_MAXCONTRAST is 255" +#endif + +/* Check power setting */ + +#if !defined(CONFIG_LCD_MAXPOWER) +# define CONFIG_LCD_MAXPOWER 1 +#endif + +#if CONFIG_LCD_MAXPOWER != 1 +# warning "CONFIG_LCD_MAXPOWER exceeds supported maximum" +# undef CONFIG_LCD_MAXPOWER +# define CONFIG_LCD_MAXPOWER 1 +#endif + +/* Color is 1bpp monochrome with leftmost column contained in bits 0 */ + +#ifdef CONFIG_NX_DISABLE_1BPP +# warning "1 bit-per-pixel support needed" +#endif + +/* Orientation */ + +#if defined(CONFIG_LCD_LANDSCAPE) +# undef CONFIG_LCD_PORTRAIT +# undef CONFIG_LCD_RLANDSCAPE +# undef CONFIG_LCD_RPORTRAIT +#elif defined(CONFIG_LCD_PORTRAIT) +# undef CONFIG_LCD_LANDSCAPE +# undef CONFIG_LCD_RLANDSCAPE +# undef CONFIG_LCD_RPORTRAIT +#elif defined(CONFIG_LCD_RLANDSCAPE) +# undef CONFIG_LCD_LANDSCAPE +# undef CONFIG_LCD_PORTRAIT +# undef CONFIG_LCD_RPORTRAIT +#elif defined(CONFIG_LCD_RPORTRAIT) +# undef CONFIG_LCD_LANDSCAPE +# undef CONFIG_LCD_PORTRAIT +# undef CONFIG_LCD_RLANDSCAPE +#else +# define CONFIG_LCD_LANDSCAPE 1 +# warning "Assuming landscape orientation" +#endif + +/* Some important "colors" */ + +#define UG_Y1_BLACK 0 +#define UG_Y1_WHITE 1 + +/************************************************************************************** + * Public Types + **************************************************************************************/ + +/************************************************************************************** + * Public Data + **************************************************************************************/ + +#ifdef __cplusplus +extern "C" +{ +#endif + +/************************************************************************************** + * Public Function Prototypes + **************************************************************************************/ + +/************************************************************************************** + * Name: ug2864hsweg01_initialize + * + * Description: + * Initialize the UG-2864HSWEG01 video hardware. The initial state of the + * OLED is fully initialized, display memory cleared, and the OLED ready + * to use, but with the power setting at 0 (full off == sleep mode). + * + * Input Parameters: + * + * spi - A reference to the SPI driver instance. + * devno - A value in the range of 0 through CONFIG_UG2864HSWEG01_NINTERFACES-1. + * This allows support for multiple OLED devices. + * + * Returned Value: + * + * On success, this function returns a reference to the LCD object for + * the specified OLED. NULL is returned on any failure. + * + **************************************************************************************/ + +struct lcd_dev_s; /* See include/nuttx/lcd/lcd.h */ +struct spi_dev_s; /* See include/nuttx/spi.h */ +FAR struct lcd_dev_s *ug2864hsweg01_initialize(FAR struct spi_dev_s *spi, + unsigned int devno); + +/************************************************************************************************ + * Name: ug2864hsweg01_fill + * + * Description: + * This non-standard method can be used to clear the entire display by writing one + * color to the display. This is much faster than writing a series of runs. + * + * Input Parameters: + * priv - Reference to private driver structure + * + * Assumptions: + * Caller has selected the OLED section. + * + **************************************************************************************/ + +void ug2864hsweg01_fill(FAR struct lcd_dev_s *dev, uint8_t color); + +#ifdef __cplusplus +} +#endif + +#endif /* CONFIG_LCD_UG2864HSWEG01 */ +#endif /* __INCLUDE_NUTTX_UG_8264HSWEG01_H */ |