diff options
| -rw-r--r-- | nuttx/ChangeLog | 4 | ||||
| -rw-r--r-- | nuttx/configs/mikroe-stm32f4/src/Makefile | 4 | ||||
| -rw-r--r-- | nuttx/configs/mikroe-stm32f4/src/mikroe-stm32f4-internal.h | 4 | ||||
| -rw-r--r-- | nuttx/configs/mikroe-stm32f4/src/up_boot.c | 2 | ||||
| -rw-r--r-- | nuttx/configs/mikroe-stm32f4/src/up_mio283qt9a.c | 562 | ||||
| -rw-r--r-- | nuttx/configs/mikroe-stm32f4/src/up_nsh.c | 2 | ||||
| -rw-r--r-- | nuttx/drivers/lcd/Make.defs | 4 | ||||
| -rw-r--r-- | nuttx/drivers/lcd/mio283qt9a.c | 908 | ||||
| -rw-r--r-- | nuttx/include/nuttx/lcd/mio283qt9a.h | 150 |
9 files changed, 1636 insertions, 4 deletions
diff --git a/nuttx/ChangeLog b/nuttx/ChangeLog index ff6ba917d..ef67df096 100644 --- a/nuttx/ChangeLog +++ b/nuttx/ChangeLog @@ -6566,3 +6566,7 @@ cursor (2014-2-10). * drivers/usbhost/usbhost_hidmouse.c, include/nuttx/input/mouse.h, and include/nuttx/usb/hid.h: Add support for a mouse wheel (2014-2-10). + * drivers/lcd/mio283qt9a.c and include/nuttx/lcd/mio283qt9a.h: Support + for the MIO283QT9A LCD. From Toby Duckworth (2014-2-10). + * configs/mikroe-stm32f4/src/up_mio283qt9a.c: The Mikroe STM32F4 can + now support the newer MIO283QT9A LCD. From Toby Duckworth (2014-2-10). diff --git a/nuttx/configs/mikroe-stm32f4/src/Makefile b/nuttx/configs/mikroe-stm32f4/src/Makefile index 5ca1fe3ee..7e7c26409 100644 --- a/nuttx/configs/mikroe-stm32f4/src/Makefile +++ b/nuttx/configs/mikroe-stm32f4/src/Makefile @@ -94,6 +94,10 @@ ifeq ($(CONFIG_LCD_MIO283QT2),y) CSRCS += up_mio283qt2.c endif +ifeq ($(CONFIG_LCD_MIO283QT9A),y) +CSRCS += up_mio283qt9a.c +endif + ifeq ($(CONFIG_VS1053),y) CSRCS += up_vs1053.c endif diff --git a/nuttx/configs/mikroe-stm32f4/src/mikroe-stm32f4-internal.h b/nuttx/configs/mikroe-stm32f4/src/mikroe-stm32f4-internal.h index e97b5bdab..61bef1c4b 100644 --- a/nuttx/configs/mikroe-stm32f4/src/mikroe-stm32f4-internal.h +++ b/nuttx/configs/mikroe-stm32f4/src/mikroe-stm32f4-internal.h @@ -250,7 +250,7 @@ void weak_function stm32_usbinitialize(void); * ****************************************************************************************************/ -#ifdef CONFIG_LCD_MIO283QT2 +#if defined(CONFIG_LCD_MIO283QT2) || defined(CONFIG_LCD_MIO283QT9A) void stm32_lcdinitialize(void); #endif @@ -263,7 +263,7 @@ void stm32_lcdinitialize(void); * ****************************************************************************************************/ -#ifdef CONFIG_LCD_MIO283QT2 +#if defined(CONFIG_LCD_MIO283QT2) || defined(CONFIG_LCD_MIO283QT9A) int up_lcdinitialize(void); #endif diff --git a/nuttx/configs/mikroe-stm32f4/src/up_boot.c b/nuttx/configs/mikroe-stm32f4/src/up_boot.c index de73f66c6..4d6138e24 100644 --- a/nuttx/configs/mikroe-stm32f4/src/up_boot.c +++ b/nuttx/configs/mikroe-stm32f4/src/up_boot.c @@ -79,7 +79,7 @@ void stm32_boardinitialize(void) /* Configure GPIOs for controlling the LCD */ -#ifdef CONFIG_LCD_MIO283QT2 +#if defined(CONFIG_LCD_MIO283QT2) || defined(CONFIG_LCD_MIO283QT9A) stm32_lcdinitialize(); #endif diff --git a/nuttx/configs/mikroe-stm32f4/src/up_mio283qt9a.c b/nuttx/configs/mikroe-stm32f4/src/up_mio283qt9a.c new file mode 100644 index 000000000..7a4461da9 --- /dev/null +++ b/nuttx/configs/mikroe-stm32f4/src/up_mio283qt9a.c @@ -0,0 +1,562 @@ +/************************************************************************************** + * configs/mikroe-stm32f4/src/up_mio283qt9a.c + * + * Interface definition for the MI0283QT-9A LCD from Multi-Inno Technology Co., Ltd. + * LCD is based on the Ilitek ILI9341 LCD controller. + * + * Copyright (C) 2012-2014 Gregory Nutt. All rights reserved. + * Authors: Gregory Nutt <gnutt@nuttx.org> + * + * Modified: 2013-2014 by Ken Pettit to support Mikroe-STM32F4 board. + * + * 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 <sys/types.h> +#include <stdint.h> +#include <stdbool.h> +#include <errno.h> +#include <debug.h> + +#include <nuttx/arch.h> +#include <nuttx/lcd/lcd.h> +#include <nuttx/lcd/mio283qt9a.h> + +#include <arch/board/board.h> + +#include "up_arch.h" +#include "stm32.h" +#include "stm32_gpio.h" +#include "mikroe-stm32f4-internal.h" + +#ifdef CONFIG_LCD_MIO283QT9A + +/************************************************************************************** + * Pre-processor Definitions + **************************************************************************************/ +/* Configuration **********************************************************************/ + +/* Define CONFIG_DEBUG_LCD to enable detailed LCD debug output. Verbose debug must + * also be enabled. + */ + +#ifndef CONFIG_DEBUG +# undef CONFIG_DEBUG_VERBOSE +# undef CONFIG_DEBUG_GRAPHICS +# undef CONFIG_DEBUG_LCD +#endif + +#ifndef CONFIG_DEBUG_VERBOSE +# undef CONFIG_DEBUG_LCD +#endif + +/* Mikroe-STM32F4 Hardware Definitions ************************************************/ +/* --- ---------------------------------- -------------------- ------------------------ + * PIN CONFIGURATIONS SIGNAL NAME ON-BOARD CONNECTIONS + * (Family Data Sheet Table 1-1) (PIC32MX7 Schematic) + * --- ---------------------------------- -------------------- ------------------------ + * 39 PE8 LCD_RST TFT display + * 46 PE15 LCD-CS# TFT display + * 40 PE9 LCD_BLED LCD backlight LED + * 43 PE12 LCD-RS TFT display + * + * + * 97 RE0 T_D0 TFT display + * 98 RE1 T_D1 TFT display + * 1 RE2 T_D2 TFT display + * 2 RE3 T_D3 TFT display + * 3 RE4 T_D4 TFT display + * 4 RE5 T_D5 TFT display + * 5 RE6 T_D6 TFT display + * 38 RE7 T_D7 TFT display + * + * 41 PE10 PMPRD + * 42 RE11 PMPWR + * + * TOUCHSCREEN PIN CONFIGURATIONS + * PIN CONFIGURATIONS SIGNAL NAME ON-BOARD CONNECTIONS + * --- ---------------------------------- -------------------- ------------------------ + * 35 PB0 LCD-YD TFT display + * ? LCD-XR TFT display + * ? LCD-YU TFT display + * 36 PB1 LCD-XL TFT display + * 95 PB8 DRIVEA TFT display + * 96 PB9 DRIVEB TFT display + */ + +/* Debug ******************************************************************************/ + +#ifdef CONFIG_DEBUG_LCD +# define lcddbg dbg +# define lcdvdbg vdbg +#else +# define lcddbg(x...) +# define lcdvdbg(x...) +#endif + +/************************************************************************************** + * Private Type Definition + **************************************************************************************/ + +struct stm32f4_dev_s +{ + struct mio283qt9a_lcd_s dev; /* The externally visible part of the driver */ + bool grammode; /* true=Writing to GRAM (16-bit write vs 8-bit) */ + bool firstread; /* First GRAM read? */ + FAR struct lcd_dev_s *drvr; /* The saved instance of the LCD driver */ +}; + +/************************************************************************************** + * Private Function Protototypes + **************************************************************************************/ +/* Low Level LCD access */ + +static void stm32_select(FAR struct mio283qt9a_lcd_s *dev); +static void stm32_deselect(FAR struct mio283qt9a_lcd_s *dev); +static void stm32_index(FAR struct mio283qt9a_lcd_s *dev, uint8_t index); +#if !defined(CONFIG_MIO283QT2_WRONLY) && CONFIG_LCD_NOGETRUN != 1 +static uint16_t stm32_read(FAR struct mio283qt9a_lcd_s *dev); +#endif +static void stm32_write(FAR struct mio283qt9a_lcd_s *dev, uint16_t data); +static void stm32_backlight(FAR struct mio283qt9a_lcd_s *dev, int power); + +/************************************************************************************** + * Private Data + **************************************************************************************/ + +/* This is the driver state structure (there is no retained state information) */ + +static struct stm32f4_dev_s g_stm32f4_lcd = +{ + { + .select = stm32_select, + .deselect = stm32_deselect, + .index = stm32_index, +#if !defined(CONFIG_MIO283QT2_WRONLY) && CONFIG_LCD_NOGETRUN != 1 + .read = stm32_read, +#endif + .write = stm32_write, + .backlight = stm32_backlight + } +}; + +static uint32_t * volatile g_portsetreset = (uint32_t *) STM32_GPIOE_BSRR; + +/************************************************************************************** + * Private Functions + **************************************************************************************/ + +/************************************************************************************** + * Name: stm32_tinydelay + * + * Description: + * Delay for a few hundred NS. + * + **************************************************************************************/ + +static void stm32_tinydelay(void) +{ + volatile uint8_t x = 0; + + for (x = 1; x > 0; x--) + ; +} + +/************************************************************************************** + * Name: stm32_command + * + * Description: + * Configure to write an LCD command + * + **************************************************************************************/ + +static inline void stm32_command(void) +{ + uint32_t * volatile portsetreset = (uint32_t *) STM32_GPIOE_BSRR; + + /* Low selects command */ + + *portsetreset = (1 << LCD_RS_PIN) << 16; +} + +/************************************************************************************** + * Name: stm32_data + * + * Description: + * Configure to read or write LCD data + * + **************************************************************************************/ + +static inline void stm32_data(void) +{ + /* Hi selects data */ + + *g_portsetreset = 1 << LCD_RS_PIN; +} + +/************************************************************************************** + * Name: stm32_select + * + * Description: + * Select the LCD device + * + **************************************************************************************/ + +static void stm32_select(FAR struct mio283qt9a_lcd_s *dev) +{ + /* CS low selects */ + + *g_portsetreset = (1 << LCD_CS_PIN) << 16; +} + +/************************************************************************************** + * Name: stm32_deselect + * + * Description: + * De-select the LCD device + * + **************************************************************************************/ + +static void stm32_deselect(FAR struct mio283qt9a_lcd_s *dev) +{ + /* CS high de-selects */ + + *g_portsetreset = 1 << LCD_CS_PIN; +} + +/************************************************************************************** + * Name: stm32_index + * + * Description: + * Set the index register + * + **************************************************************************************/ + +static void stm32_index(FAR struct mio283qt9a_lcd_s *dev, uint8_t index) +{ + FAR struct stm32f4_dev_s *priv = (FAR struct stm32f4_dev_s *)dev; + + /* Setup to write in command mode (vs data mode) */ + + stm32_command(); + + /* Write the index register to the 8-bit GPIO pin bus. We are violating the + * datasheet here a little by driving the WR pin low at the same time as + * the data, but the fact is that all ASIC logic will latch on the rising + * edge of WR anyway, not the falling edge. We are just shaving off a few + * cycles every time this routine is called, which will be fairly often. + */ + + *g_portsetreset = index | ((uint8_t) (~index) << 16) | + ((1 << LCD_PMPWR_PIN) << 16); + + /* Record if we are accessing GRAM or not (16 vs 8 bit accesses) + * NOTE. This also serves as a delay between WR low to WR high + * transition. + */ + + priv->grammode = index == 0x2c; + priv->firstread = true; + + /* Now raise the WR line */ + + *g_portsetreset = (1 << LCD_PMPWR_PIN); + + /* Back to data mode to read/write the data */ + + stm32_data(); +} + +/************************************************************************************** + * Name: stm32_read + * + * Description: + * Read LCD data (GRAM data or register contents) + * + **************************************************************************************/ + +#if !defined(CONFIG_MIO283QT2_WRONLY) && CONFIG_LCD_NOGETRUN != 1 +static uint16_t stm32_read(FAR struct mio283qt9a_lcd_s *dev) +{ + FAR struct stm32f4_dev_s *priv = (FAR struct stm32f4_dev_s *)dev; + uint32_t * volatile portsetreset = (uint32_t *) STM32_GPIOE_BSRR; + uint32_t * volatile portmode = (uint32_t *) STM32_GPIOE_MODER; + uint32_t * volatile portinput = (uint32_t *) STM32_GPIOE_IDR; + uint16_t data; + + /* Set the I/O Port to input mode. Ugly, but fast. */ + + *portmode &= 0xFFFF0000; + + /* Read the data */ + + *portsetreset = (1 << LCD_PMPRD_PIN) << 16; + stm32_tinydelay(); + data = *portinput & 0x00FF; + *portsetreset = (1 << LCD_PMPRD_PIN); + + /* Test if a 16-bit read is needed (GRAM mode) */ + + if (priv->grammode) + { + /* If this is the 1st GRAM read, then discard the dummy byte */ + + if (priv->firstread) + { + priv->firstread = false; + *portsetreset = (1 << LCD_PMPRD_PIN) << 16; + stm32_tinydelay(); + data = *portinput; + *portsetreset = (1 << LCD_PMPRD_PIN); + } + + /* Okay, a 16-bit read is actually a 24-bit read from the LCD. + * this is because the read color format of the MIO283QT-2 is a bit + * different than the 16-bit write color format. During a read, + * the R,G and B samples are read on subsequent bytes, and the + * data is MSB aligned. We must re-construct the 16-bit 565 data. + */ + + /* Clip RED sample to 5-bits and shit to MSB */ + + data = (data & 0xF8) << 8; + + /* Now read Green sample */ + + *portsetreset = (1 << LCD_PMPRD_PIN) << 16; + stm32_tinydelay(); + data |= (*portinput & 0x00FC) << 3; + *portsetreset = (1 << LCD_PMPRD_PIN); + + /* Now read Blue sample */ + + *portsetreset = (1 << LCD_PMPRD_PIN) << 16; + stm32_tinydelay(); + data |= (*portinput & 0x00F8) >> 3; + *portsetreset = (1 << LCD_PMPRD_PIN); + } + + /* Put the port back in output mode. Ugly, but fast. */ + + *portmode |= 0x00005555; + + return data; +} +#endif + +/************************************************************************************** + * Name: stm32_write + * + * Description: + * Write LCD data (GRAM data or register contents) + * + **************************************************************************************/ + +static void stm32_write(FAR struct mio283qt9a_lcd_s *dev, uint16_t data) +{ + FAR struct stm32f4_dev_s *priv = (FAR struct stm32f4_dev_s *)dev; + + /* Write the data register to the 8-bit GPIO pin bus. We are violating the + * datasheet here a little by driving the WR pin low at the same time as + * the data, but the fact is that all ASIC logic will latch on the rising + * edge of WR anyway, not the falling edge. We are just shaving off a few + * cycles every time this routine is called, which will be fairly often. + */ + + if (priv->grammode) + { + /* Need to write 16-bit pixel data (16 BPP). Write the upper pixel data first */ + + *g_portsetreset = ((data>>8) & 0xFF) | (((~data>>8) & 0xFF) << 16) | + ((1 << LCD_PMPWR_PIN) << 16); + stm32_tinydelay(); + *g_portsetreset = (1 << LCD_PMPWR_PIN); + } + + /* Now write the lower 8-bit of data */ + + *g_portsetreset = (data & 0xFF) | ((~data & 0xFF) << 16) | + ((1 << LCD_PMPWR_PIN) << 16); + stm32_tinydelay(); + *g_portsetreset = (1 << LCD_PMPWR_PIN); +} + +/************************************************************************************** + * Name: stm32_backlight + * + * Description: + * Set the backlight power level. + * + **************************************************************************************/ + +static void stm32_backlight(FAR struct mio283qt9a_lcd_s *dev, int power) +{ + /* For now, we just control the backlight as a discrete. Pulse width modulation + * would be required to vary the backlight level. A low value turns the backlight + * off. + */ + + stm32_gpiowrite(GPIO_LCD_BLED, power > 0); +} + +/************************************************************************************** + * Public Functions + **************************************************************************************/ + +/************************************************************************************** + * Name: stm32_lcdinitialize + * + * Description: + * Initialize the LCD. This function should be called early in the boot + * sequendce -- Even if the LCD is not enabled. In that case we should + * at a minimum at least disable the LCD backlight. + * + **************************************************************************************/ + +void stm32_lcdinitialize(void) +{ + /* Configure all LCD discrete controls. LCD will be left in this state: + * 1. Held in reset, + * 2. Not selected, + * 3. Backlight off, + * 4. Command selected. + */ + +#ifdef CONFIG_LCD_MIO283QT9A + stm32_configgpio(GPIO_LCD_RST); + stm32_configgpio(GPIO_LCD_CS); + stm32_configgpio(GPIO_LCD_BLED); + stm32_gpiowrite(GPIO_LCD_BLED, false); + stm32_configgpio(GPIO_LCD_RS); + stm32_configgpio(GPIO_LCD_PMPWR); + stm32_configgpio(GPIO_LCD_PMPRD); + + /* Configure PE0-7 for output */ + + stm32_configgpio(GPIO_LCD_T_D0); + stm32_configgpio(GPIO_LCD_T_D1); + stm32_configgpio(GPIO_LCD_T_D2); + stm32_configgpio(GPIO_LCD_T_D3); + stm32_configgpio(GPIO_LCD_T_D4); + stm32_configgpio(GPIO_LCD_T_D5); + stm32_configgpio(GPIO_LCD_T_D6); + stm32_configgpio(GPIO_LCD_T_D7); + +#else + /* Just configure the backlight control as an output and turn off the + * backlight for now. + */ + + stm32_configgpio(GPIO_LCD_BLED); +#endif +} + +/************************************************************************************** + * Name: up_lcdinitialize + * + * Description: + * Initialize the LCD video hardware. The initial state of the LCD is fully + * initialized, display memory cleared, and the LCD ready to use, but with the power + * setting at 0 (full off). + * + **************************************************************************************/ + +int up_lcdinitialize(void) +{ + /* Only initialize the driver once. NOTE: The LCD GPIOs were already configured + * by stm32_lcdinitialize. + */ + + if (!g_stm32f4_lcd.drvr) + { + lcdvdbg("Initializing\n"); + + /* Hold the LCD in reset (active low) */ + + stm32_gpiowrite(GPIO_LCD_RST, false); + + /* Bring the LCD out of reset */ + + up_mdelay(5); + stm32_gpiowrite(GPIO_LCD_RST, true); + + /* Configure and enable the LCD */ + + up_mdelay(50); + g_stm32f4_lcd.drvr = mio283qt9a_lcdinitialize(&g_stm32f4_lcd.dev); + if (!g_stm32f4_lcd.drvr) + { + lcddbg("ERROR: mio283qt9a_lcdinitialize failed\n"); + return -ENODEV; + } + } + + /* Turn the display off */ + + g_stm32f4_lcd.drvr->setpower(g_stm32f4_lcd.drvr, 0); + return OK; +} + +/************************************************************************************** + * Name: up_lcdgetdev + * + * Description: + * Return a a reference to the LCD object for the specified LCD. This allows support + * for multiple LCD devices. + * + **************************************************************************************/ + +FAR struct lcd_dev_s *up_lcdgetdev(int lcddev) +{ + DEBUGASSERT(lcddev == 0); + return g_stm32f4_lcd.drvr; +} + +/************************************************************************************** + * Name: up_lcduninitialize + * + * Description: + * Uninitialize the LCD support + * + **************************************************************************************/ + +void up_lcduninitialize(void) +{ + /* Turn the display off */ + + g_stm32f4_lcd.drvr->setpower(g_stm32f4_lcd.drvr, 0); +} + +#endif /* CONFIG_LCD_MIO283QT9A */ diff --git a/nuttx/configs/mikroe-stm32f4/src/up_nsh.c b/nuttx/configs/mikroe-stm32f4/src/up_nsh.c index 9abd86054..b8be4a4a7 100644 --- a/nuttx/configs/mikroe-stm32f4/src/up_nsh.c +++ b/nuttx/configs/mikroe-stm32f4/src/up_nsh.c @@ -356,7 +356,7 @@ int nsh_archinitialize(void) } #endif -#ifdef CONFIG_LCD_MIO283QT2 +#if defined(CONFIG_LCD_MIO283QT2) || defined(CONFIG_LCD_MIO283QT9A) /* Configure the TFT LCD module */ message("nsh_archinitialize: Initializing TFT LCD module\n"); diff --git a/nuttx/drivers/lcd/Make.defs b/nuttx/drivers/lcd/Make.defs index 54bf88ec1..4f7e7e473 100644 --- a/nuttx/drivers/lcd/Make.defs +++ b/nuttx/drivers/lcd/Make.defs @@ -67,6 +67,10 @@ ifeq ($(CONFIG_LCD_MIO283QT2),y) CSRCS += mio283qt2.c endif +ifeq ($(CONFIG_LCD_MIO283QT9A),y) + CSRCS += mio283qt9a.c +endif + ifeq ($(CONFIG_LCD_ST7567),y) CSRCS += st7567.c endif diff --git a/nuttx/drivers/lcd/mio283qt9a.c b/nuttx/drivers/lcd/mio283qt9a.c new file mode 100644 index 000000000..4f002f105 --- /dev/null +++ b/nuttx/drivers/lcd/mio283qt9a.c @@ -0,0 +1,908 @@ +/************************************************************************************** + * drivers/lcd/mio283qt9a.c + * + * This is a driver for the MI0283QT-9A LCD from Multi-Inno Technology Co., Ltd. This + * LCD is based on the Ilitek ILI9341 LCD controller. + * + * Copyright (C) 2012, 2014 Gregory Nutt. All rights reserved. + * Authors: 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 <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/spi.h> +#include <nuttx/lcd/lcd.h> +#include <nuttx/lcd/mio283qt9a.h> + +#ifdef CONFIG_LCD_MIO283QT9A + +/************************************************************************************** + * Pre-processor Definitions + **************************************************************************************/ +/* Configuration **********************************************************************/ + +/* Check contrast selection */ + +#if !defined(CONFIG_LCD_MAXCONTRAST) +# define CONFIG_LCD_MAXCONTRAST 1 +#endif + +/* Check power setting */ + +#if !defined(CONFIG_LCD_MAXPOWER) || CONFIG_LCD_MAXPOWER < 1 +# define CONFIG_LCD_MAXPOWER 1 +#endif + +#if CONFIG_LCD_MAXPOWER > 255 +# error "CONFIG_LCD_MAXPOWER must be less than 256 to fit in uint8_t" +#endif + +/* Check orientation */ + +#if defined(CONFIG_LCD_PORTRAIT) +# if defined(CONFIG_LCD_LANDSCAPE) || defined(CONFIG_LCD_RLANDSCAPE) || defined(CONFIG_LCD_RPORTRAIT) +# error "Cannot define both portrait and any other orientations" +# endif +#elif defined(CONFIG_LCD_RPORTRAIT) +# if defined(CONFIG_LCD_LANDSCAPE) || defined(CONFIG_LCD_RLANDSCAPE) +# error "Cannot define both rportrait and any other orientations" +# endif +#elif defined(CONFIG_LCD_LANDSCAPE) +# ifdef CONFIG_LCD_RLANDSCAPE +# error "Cannot define both landscape and any other orientations" +# endif +#elif !defined(CONFIG_LCD_RLANDSCAPE) +# define CONFIG_LCD_LANDSCAPE 1 +#endif + +/* Define CONFIG_DEBUG_LCD to enable detailed LCD debug output. Verbose debug must + * also be enabled. + */ + +#ifndef CONFIG_DEBUG +# undef CONFIG_DEBUG_VERBOSE +# undef CONFIG_DEBUG_GRAPHICS +# undef CONFIG_DEBUG_LCD +#endif + +#ifndef CONFIG_DEBUG_VERBOSE +# undef CONFIG_DEBUG_LCD +#endif + +/* Display/Color Properties ***********************************************************/ +/* Display Resolution */ + +#if defined(CONFIG_LCD_LANDSCAPE) || defined(CONFIG_LCD_RLANDSCAPE) +# define MIO283QT9A_XRES 320 +# define MIO283QT9A_YRES 240 +#else +# define MIO283QT9A_XRES 240 +# define MIO283QT9A_YRES 320 +#endif + +/* Color depth and format */ + +#define MIO283QT9A_BPP 16 +#define MIO283QT9A_COLORFMT FB_FMT_RGB16_565 + +/* Hardware LCD/LCD controller definitions ********************************************/ +/* In this driver, I chose to use all literal constants for register address and + * values. Some recent experiences have shown me that during LCD bringup, it is more + * important to know the binary values rather than nice, people friendly names. Sad, + * but true. + */ + +#define ILI9341_ID_1 0x93 +#define ILI9341_ID_2 0x41 + +/* Debug ******************************************************************************/ + +#ifdef CONFIG_DEBUG_LCD +# define lcddbg dbg +# define lcdvdbg vdbg +#else +# define lcddbg(x...) +# define lcdvdbg(x...) +#endif + +/************************************************************************************** + * Private Type Definition + **************************************************************************************/ + +/* This structure describes the state of this driver */ + +struct mio283qt9a_dev_s +{ + /* Publicly visible device structure */ + + struct lcd_dev_s dev; + + /* Private LCD-specific information follows */ + + FAR struct mio283qt9a_lcd_s *lcd; /* The contained platform-specific, LCD interface */ + uint8_t power; /* Current power setting */ + + /* 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. + */ + + uint16_t runbuffer[MIO283QT9A_XRES]; +}; + +/************************************************************************************** + * Private Function Prototypes + **************************************************************************************/ +/* Low Level LCD access */ + +static void mio283qt9a_putreg(FAR struct mio283qt9a_lcd_s *lcd, uint8_t regaddr, + uint16_t regval); +#ifndef CONFIG_LCD_NOGETRUN +static uint16_t mio283qt9a_readreg(FAR struct mio283qt9a_lcd_s *lcd, uint8_t regaddr); +#endif +static inline void mio283qt9a_gramwrite(FAR struct mio283qt9a_lcd_s *lcd, + uint16_t rgbcolor); +#ifndef CONFIG_LCD_NOGETRUN +static inline void mio283qt9a_readsetup(FAR struct mio283qt9a_lcd_s *lcd, + FAR uint16_t *accum); +static inline uint16_t mio283qt9a_gramread(FAR struct mio283qt9a_lcd_s *lcd, + FAR uint16_t *accum); +#endif +static void mio283qt9a_setarea(FAR struct mio283qt9a_lcd_s *lcd, + uint16_t x0, uint16_t y0, uint16_t x1, uint16_t y1); + +/* LCD Data Transfer Methods */ + +static int mio283qt9a_putrun(fb_coord_t row, fb_coord_t col, FAR const uint8_t *buffer, + size_t npixels); +static int mio283qt9a_getrun(fb_coord_t row, fb_coord_t col, FAR uint8_t *buffer, + size_t npixels); + +/* LCD Configuration */ + +static int mio283qt9a_getvideoinfo(FAR struct lcd_dev_s *dev, + FAR struct fb_videoinfo_s *vinfo); +static int mio283qt9a_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 mio283qt9a_getpower(FAR struct lcd_dev_s *dev); +static int mio283qt9a_setpower(FAR struct lcd_dev_s *dev, int power); +static int mio283qt9a_getcontrast(FAR struct lcd_dev_s *dev); +static int mio283qt9a_setcontrast(FAR struct lcd_dev_s *dev, unsigned int contrast); + +/* Initialization */ + +static inline int mio283qt9a_hwinitialize(FAR struct mio283qt9a_dev_s *priv); + +/************************************************************************************** + * Private Data + **************************************************************************************/ + +/* This driver can support only a signal MIO283QT9A device. This is due to an + * unfortunate decision made when the getrun and putrun methods were designed. The + * following is the single MIO283QT9A driver state instance: + */ + +static struct mio283qt9a_dev_s g_lcddev; + +/************************************************************************************** + * Private Functions + **************************************************************************************/ + +/************************************************************************************** + * Name: mio283qt9a_putreg + * + * Description: + * Write to an LCD register + * + **************************************************************************************/ + +static void mio283qt9a_putreg(FAR struct mio283qt9a_lcd_s *lcd, + uint8_t regaddr, uint16_t regval) +{ + /* Set the index register to the register address and write the register contents */ + + lcd->index(lcd, regaddr); + lcd->write(lcd, regval); +} + +/************************************************************************************** + * Name: mio283qt9a_readreg + * + * Description: + * Read from an LCD register + * + **************************************************************************************/ + +#ifndef CONFIG_LCD_NOGETRUN +static uint16_t mio283qt9a_readreg(FAR struct mio283qt9a_lcd_s *lcd, uint8_t regaddr) +{ + /* Set the index register to the register address and read the register contents. */ + + lcd->index(lcd, regaddr); + return lcd->read(lcd); +} +#endif + +/************************************************************************************** + * Name: mio283qt9a_gramselect + * + * Description: + * Setup to read or write multiple pixels to the GRAM memory + * + **************************************************************************************/ + +static inline void mio283qt9a_gramselect(FAR struct mio283qt9a_lcd_s *lcd) +{ + lcd->index(lcd, 0x2c); +} + +/************************************************************************************** + * Name: mio283qt9a_gramwrite + * + * Description: + * Setup to read or write multiple pixels to the GRAM memory + * + **************************************************************************************/ + +static inline void mio283qt9a_gramwrite(FAR struct mio283qt9a_lcd_s *lcd, uint16_t data) +{ + lcd->write(lcd, data); +} + +/************************************************************************************** + * Name: mio283qt9a_readsetup + * + * Description: + * Prime the operation by reading one pixel from the GRAM memory if necessary for + * this LCD type. When reading 16-bit gram data, there may be some shifts in the + * returned data: + * + * - ILI932x: Discard first dummy read; no shift in the return data + * + **************************************************************************************/ + +#ifndef CONFIG_LCD_NOGETRUN +static inline void mio283qt9a_readsetup(FAR struct mio283qt9a_lcd_s *lcd, + FAR uint16_t *accum) +{ +#if 0 /* Probably not necessary... untested */ + /* Read-ahead one pixel */ + + *accum = lcd->read(lcd); +#endif +} +#endif + +/************************************************************************************** + * Name: mio283qt9a_gramread + * + * Description: + * Read one correctly aligned pixel from the GRAM memory. Possibly shifting the + * data and possibly swapping red and green components. + * + * - ILI932x: Unknown -- assuming colors are in the color order + * + **************************************************************************************/ + +#ifndef CONFIG_LCD_NOGETRUN +static inline uint16_t mio283qt9a_gramread(FAR struct mio283qt9a_lcd_s *lcd, + FAR uint16_t *accum) +{ + /* Read the value (GRAM register already selected) */ + + return lcd->read(lcd); +} +#endif + +/************************************************************************************** + * Name: mio283qt9a_setarea + * + * Description: + * Set the cursor position. In landscape mode, the "column" is actually the physical + * Y position and the "row" is the physical X position. + * + **************************************************************************************/ + +static void mio283qt9a_setarea(FAR struct mio283qt9a_lcd_s *lcd, + uint16_t x0, uint16_t y0, uint16_t x1, uint16_t y1) +{ + //lcddbg("setarea x0=%d, y0=%d, x1=%d, y1=%d\n", x0, y0, x1, y1); + + mio283qt9a_putreg(lcd, 0x2a, (x0 >> 8)); /* set column address x0 */ + lcd->write(lcd, (x0 & 0xff)); /* set x0 */ + lcd->write(lcd, (x1 >> 8)); /* set x1 */ + lcd->write(lcd, (x1 & 0xff)); /* set x1 */ + mio283qt9a_putreg(lcd, 0x2b, (y0 >> 8)); /* set page address y0 */ + lcd->write(lcd, (y0 & 0xff)); /* set y0 */ + lcd->write(lcd, (y1 >> 8)); /* set y1 */ + lcd->write(lcd, (y1 & 0xff)); /* set y1 */ +} + +/************************************************************************************** + * Name: mio283qt9a_dumprun + * + * Description: + * Dump the contexts of the run buffer: + * + * run - The buffer in containing the run read to be dumped + * npixels - The number of pixels to dump + * + **************************************************************************************/ + +#if 0 /* Sometimes useful */ +static void mio283qt9a_dumprun(FAR const char *msg, FAR uint16_t *run, size_t npixels) +{ + int i; + int j; + + syslog("\n%s:\n", msg); + for (i = 0; i < npixels; i += 16) + { + up_putc(' '); + syslog(" "); + for (j = 0; j < 16; j++) + { + syslog(" %04x", *run++); + } + + up_putc('\n'); + } +} +#endif + +/************************************************************************************** + * Name: mio283qt9a_putrun + * + * Description: + * This method can be used to write a partial raster line to the LCD: + * + * 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) + * + **************************************************************************************/ + +static int mio283qt9a_putrun(fb_coord_t row, fb_coord_t col, FAR const uint8_t *buffer, + size_t npixels) +{ + FAR struct mio283qt9a_dev_s *priv = &g_lcddev; + FAR struct mio283qt9a_lcd_s *lcd = priv->lcd; + FAR const uint16_t *src = (FAR const uint16_t*)buffer; + int i; + + /* Buffer must be provided and aligned to a 16-bit address boundary */ + + //lcdvdbg("row: %d col: %d npixels: %d\n", row, col, npixels); + DEBUGASSERT(buffer && ((uintptr_t)buffer & 1) == 0); + + /* Select the LCD */ + + lcd->select(lcd); + + /* Write the run to GRAM. */ + + mio283qt9a_setarea(lcd, col, row, col + npixels - 1, row); + mio283qt9a_gramselect(lcd); + + src++; + for (i = 0; i < npixels; i++) + { + mio283qt9a_gramwrite(lcd, *src); + src++; + } + + /* De-select the LCD */ + + lcd->deselect(lcd); + return OK; +} + +/************************************************************************************** + * Name: mio283qt9a_getrun + * + * Description: + * This method can be used to read a partial raster line from 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) + * + **************************************************************************************/ + +static int mio283qt9a_getrun(fb_coord_t row, fb_coord_t col, FAR uint8_t *buffer, + size_t npixels) +{ +#ifndef CONFIG_LCD_NOGETRUN + FAR struct mio283qt9a_dev_s *priv = &g_lcddev; + FAR struct mio283qt9a_lcd_s *lcd = priv->lcd; + FAR uint16_t *dest = (FAR uint16_t*)buffer; + uint16_t accum; + int i; + + /* Buffer must be provided and aligned to a 16-bit address boundary */ + + lcdvdbg("row: %d col: %d npixels: %d\n", row, col, npixels); + DEBUGASSERT(buffer && ((uintptr_t)buffer & 1) == 0); + + /* Read the run from GRAM. */ + + /* Select the LCD */ + + lcd->select(lcd); + + /* Red the run fram GRAM. */ + + mio283qt9a_setarea(lcd, col, row, col + npixels - 1, row); + mio283qt9a_gramselect(lcd); + + /* Prime the pump for unaligned read data */ + + mio283qt9a_readsetup(lcd, &accum); + + for (i = 0; i < npixels; i++) + { + *dest++ = mio283qt9a_gramread(lcd, &accum); + } + + /* De-select the LCD */ + + lcd->deselect(lcd); + return OK; +#else + return -ENOSYS; +#endif +} + +/************************************************************************************** + * Name: mio283qt9a_getvideoinfo + * + * Description: + * Get information about the LCD video controller configuration. + * + **************************************************************************************/ + +static int mio283qt9a_getvideoinfo(FAR struct lcd_dev_s *dev, + FAR struct fb_videoinfo_s *vinfo) +{ + DEBUGASSERT(dev && vinfo); + lcdvdbg("fmt: %d xres: %d yres: %d nplanes: 1\n", + MIO283QT9A_COLORFMT, MIO283QT9A_XRES, MIO283QT9A_YRES); + + vinfo->fmt = MIO283QT9A_COLORFMT; /* Color format: RGB16-565: RRRR RGGG GGGB BBBB */ + vinfo->xres = MIO283QT9A_XRES; /* Horizontal resolution in pixel columns */ + vinfo->yres = MIO283QT9A_YRES; /* Vertical resolution in pixel rows */ + vinfo->nplanes = 1; /* Number of color planes supported */ + return OK; +} + +/************************************************************************************** + * Name: mio283qt9a_getplaneinfo + * + * Description: + * Get information about the configuration of each LCD color plane. + * + **************************************************************************************/ + +static int mio283qt9a_getplaneinfo(FAR struct lcd_dev_s *dev, unsigned int planeno, + FAR struct lcd_planeinfo_s *pinfo) +{ + FAR struct mio283qt9a_dev_s *priv = (FAR struct mio283qt9a_dev_s *)dev; + + DEBUGASSERT(dev && pinfo && planeno == 0); + lcdvdbg("planeno: %d bpp: %d\n", planeno, MIO283QT9A_BPP); + + pinfo->putrun = mio283qt9a_putrun; /* Put a run into LCD memory */ + pinfo->getrun = mio283qt9a_getrun; /* Get a run from LCD memory */ + pinfo->buffer = (uint8_t*)priv->runbuffer; /* Run scratch buffer */ + pinfo->bpp = MIO283QT9A_BPP; /* Bits-per-pixel */ + + return OK; +} + +/************************************************************************************** + * Name: mio283qt9a_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 mio283qt9a_getpower(FAR struct lcd_dev_s *dev) +{ + lcdvdbg("getpower: %d\n", 0); + return g_lcddev.power; +} + +/************************************************************************************** + * Name: mio283qt9a_poweroff + * + * 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 mio283qt9a_poweroff(FAR struct mio283qt9a_lcd_s *lcd) +{ + /* Select the LCD */ + lcdvdbg("mio283qt9a_poweroff\n"); + + lcd->select(lcd); + + /* Set the backlight off */ + + lcd->backlight(lcd, 0); + + /* Turn the display off */ + + mio283qt9a_putreg(lcd, 0x28, 0x0000); /* GON=0, DTE=0, D=0 */ + + /* Deselect the LCD */ + + lcd->deselect(lcd); + + /* Remember the power off state */ + + g_lcddev.power = 0; + return OK; +} + +/************************************************************************************** + * Name: mio283qt9a_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 mio283qt9a_setpower(FAR struct lcd_dev_s *dev, int power) +{ + FAR struct mio283qt9a_dev_s *priv = (FAR struct mio283qt9a_dev_s *)dev; + FAR struct mio283qt9a_lcd_s *lcd = priv->lcd; + + lcdvdbg("setpower: %d\n", power); + DEBUGASSERT((unsigned)power <= CONFIG_LCD_MAXPOWER); + + /* Set new power level */ + + if (power > 0) + { + /* Select the LCD */ + + lcd->select(lcd); + + /* Set the backlight level */ + + lcd->backlight(lcd, power); + + /* Then turn the display on: */ + + mio283qt9a_putreg(lcd, 0x29, 0x00); /* GON=1, DTE=1, D=2 */ + + /* Deselect the LCD */ + + lcd->deselect(lcd); + + /* Remember the power on state */ + + g_lcddev.power = power; + } + else + { + /* Turn the display off */ + + mio283qt9a_poweroff(lcd); + } + + return OK; +} + +/************************************************************************************** + * Name: mio283qt9a_getcontrast + * + * Description: + * Get the current contrast setting (0-CONFIG_LCD_MAXCONTRAST). + * + **************************************************************************************/ + +static int mio283qt9a_getcontrast(FAR struct lcd_dev_s *dev) +{ + lcdvdbg("Not implemented\n"); + return -ENOSYS; +} + +/************************************************************************************** + * Name: mio283qt9a_setcontrast + * + * Description: + * Set LCD panel contrast (0-CONFIG_LCD_MAXCONTRAST). + * + **************************************************************************************/ + +static int mio283qt9a_setcontrast(FAR struct lcd_dev_s *dev, unsigned int contrast) +{ + lcdvdbg("contrast: %d\n", contrast); + return -ENOSYS; +} + +/************************************************************************************** + * Name: mio283qt9a_hwinitialize + * + * Description: + * Initialize the LCD hardware. + * + **************************************************************************************/ + +static inline int mio283qt9a_hwinitialize(FAR struct mio283qt9a_dev_s *priv) +{ + FAR struct mio283qt9a_lcd_s *lcd = priv->lcd; +#ifndef CONFIG_LCD_NOGETRUN + uint16_t id_a; + uint16_t id_b; + uint16_t id_c; + uint16_t id_d; + uint16_t id_e; +#endif + int ret; + + /* Select the LCD */ + + lcd->select(lcd); + + /* Read the HIMAX ID registger (0x00) */ + +#ifndef CONFIG_LCD_NOGETRUN + id_a = mio283qt9a_readreg(lcd, 0xd3); + id_b = lcd->read(lcd); + id_c = lcd->read(lcd); + id_d = lcd->read(lcd); + + lcdvdbg("LCD ID: %04x %04x %04x %04x\n", id_a, id_b, id_c, id_d); + + /* Check if the ID is for the ILI9341 */ + + if (id_c == ILI9341_ID_1 && id_d == ILI9341_ID_2) +#endif + { + mio283qt9a_putreg(lcd, 0x29, 0); /* Power on */ + + mio283qt9a_putreg(lcd, 0x13, 0); /* Normal display on */ + mio283qt9a_putreg(lcd, 0xc0, 0x28); /* Power control C1 */ + mio283qt9a_putreg(lcd, 0xc1, 0x01); /* Power control C2 BT = 1 */ + mio283qt9a_putreg(lcd, 0xc5, 0x24); /* VCOM control, VMH = 3.6v */ + lcd->write(lcd, 0x25); /* VML = -1.575v */ + mio283qt9a_putreg(lcd, 0x26, 0x01); /* Gamma 2.2 */ + mio283qt9a_putreg(lcd, 0x3a, 0x55); /* Pixel format set command */ + +#if defined(CONFIG_LCD_LANDSCAPE) + mio283qt9a_putreg(lcd, 0x36, 0x0028); /* MY=1, MX=0, MV=1, ML=0, BGR=1 */ +#elif defined(CONFIG_LCD_PORTRAIT) + mio283qt9a_putreg(lcd, 0x36, 0x0008); /* MY=0, MX=0, MV=0, ML=0, BGR=1 */ +#elif defined(CONFIG_LCD_RLANDSCAPE) + mio283qt9a_putreg(lcd, 0x36, 0x0068); /* MY=0, MX=1, MV=1, ML=0, BGR=1 */ +#elif defined(CONFIG_LCD_RPORTRAIT) + mio283qt9a_putreg(lcd, 0x36, 0x00c8); /* MY=1, MX=0, MV=1, ML=0, BGR=1 */ +#endif + + /* Window setting */ + + mio283qt9a_setarea(lcd, 0, 0, (MIO283QT9A_XRES-1), (MIO283QT9A_YRES-1)); + mio283qt9a_putreg(lcd, 0x11, 0); /* Sleep out mode */ + up_mdelay(25); + + /* Read back some info from the panel */ + + id_a = mio283qt9a_readreg(lcd, 0x04); /* Read display information */ + id_b = lcd->read(lcd); + id_c = lcd->read(lcd); + id_d = lcd->read(lcd); + lcdvdbg("LCD man ID: %02x, version: %02x, driver ID: %02x\n", id_b, id_c, id_d); + + id_a = mio283qt9a_readreg(lcd, 0x09); /* Read display status */ + id_b = lcd->read(lcd); + id_c = lcd->read(lcd); + id_d = lcd->read(lcd); + id_e = lcd->read(lcd); + lcdvdbg("Display status %02x, %02x, %02x, %02x, %02x\n", id_a, id_b, id_c, id_d, id_e); + + id_a = mio283qt9a_readreg(lcd, 0x0a); /* Read power status */ + id_b = lcd->read(lcd); + lcdvdbg("Power status %02x, %02x\n", id_a, id_b); + + id_a = mio283qt9a_readreg(lcd, 0x0b); /* Read MADCTL */ + id_b = lcd->read(lcd); + lcdvdbg("MADCTL %02x, %02x\n", id_a, id_b); + + id_a = mio283qt9a_readreg(lcd, 0x0c); /* Read pixel format */ + id_b = lcd->read(lcd); + lcdvdbg("Pixel format %02x, %02x\n", id_a, id_b); + + id_a = mio283qt9a_readreg(lcd, 0x0d); /* Read image format */ + id_b = lcd->read(lcd); + lcdvdbg("Image format %02x, %02x\n", id_a, id_b); + + id_a = mio283qt9a_readreg(lcd, 0x0e); /* read signal mode */ + id_b = lcd->read(lcd); + lcdvdbg("Signal mode %02x, %02x\n", id_a, id_b); + + id_a = mio283qt9a_readreg(lcd, 0x0f); /* read self diag */ + id_b = lcd->read(lcd); + lcdvdbg("Self diag %02x, %02x\n", id_a, id_b); + ret = OK; + } +#ifndef CONFIG_LCD_NOGETRUN + else + { + lcddbg("Unsupported LCD type\n"); + ret = -ENODEV; + } +#endif + + /* De-select the LCD */ + + lcd->deselect(lcd); + return ret; +} + + /************************************************************************************* + * Public Functions + **************************************************************************************/ + +/************************************************************************************** + * Name: mio283qt9a_lcdinitialize + * + * Description: + * Initialize the LCD video hardware. The initial state of the LCD is fully + * initialized, display memory cleared, and the LCD ready to use, but with the power + * setting at 0 (full off). + * + **************************************************************************************/ + +FAR struct lcd_dev_s *mio283qt9a_lcdinitialize(FAR struct mio283qt9a_lcd_s *lcd) +{ + FAR struct mio283qt9a_dev_s *priv; + int ret; + + lcdvdbg("Initializing\n"); + + /* If we could support multiple MIO283QT9A devices, this is where we would allocate + * a new driver data structure... but we can't. Why not? Because of a bad should + * the form of the getrun() and putrun methods. + */ + + priv = &g_lcddev; + + /* Initialize the driver data structure */ + + priv->dev.getvideoinfo = mio283qt9a_getvideoinfo; + priv->dev.getplaneinfo = mio283qt9a_getplaneinfo; + priv->dev.getpower = mio283qt9a_getpower; + priv->dev.setpower = mio283qt9a_setpower; + priv->dev.getcontrast = mio283qt9a_getcontrast; + priv->dev.setcontrast = mio283qt9a_setcontrast; + priv->lcd = lcd; + + /* Configure and enable LCD */ + + ret = mio283qt9a_hwinitialize(priv); + if (ret == OK) + { + /* Clear the display (setting it to the color 0=black) */ + + mio283qt9a_clear(&priv->dev, 0x0000); + + /* Turn the display off */ + + mio283qt9a_poweroff(lcd); + return &g_lcddev.dev; + } + + return NULL; +} + +/************************************************************************************** + * Name: mio283qt9a_clear + * + * Description: + * This is a non-standard LCD interface just for the stm3240g-EVAL board. Because + * of the various rotations, clearing the display in the normal way by writing a + * sequences of runs that covers the entire display can be very slow. Here the + * display is cleared by simply setting all GRAM memory to the specified color. + * + **************************************************************************************/ + +void mio283qt9a_clear(FAR struct lcd_dev_s *dev, uint16_t color) +{ + FAR struct mio283qt9a_dev_s *priv = (FAR struct mio283qt9a_dev_s *)dev; + FAR struct mio283qt9a_lcd_s *lcd = priv->lcd; + uint32_t i; + + /* Select the LCD and set the drawring area */ + + lcd->select(lcd); + mio283qt9a_setarea(lcd, 0, 0, (MIO283QT9A_XRES-1), (MIO283QT9A_YRES-1)); + + /* Prepare to write GRAM data */ + + mio283qt9a_gramselect(lcd); + + /* Copy color into all of GRAM. Orientation does not matter in this case. */ + + for (i = 0; i < MIO283QT9A_XRES * MIO283QT9A_YRES; i++) + { + mio283qt9a_gramwrite(lcd, color); + } + + /* De-select the LCD */ + + lcd->deselect(lcd); +} + +#endif /* CONFIG_LCD_MIO283QT9A */ diff --git a/nuttx/include/nuttx/lcd/mio283qt9a.h b/nuttx/include/nuttx/lcd/mio283qt9a.h new file mode 100644 index 000000000..01b1e854a --- /dev/null +++ b/nuttx/include/nuttx/lcd/mio283qt9a.h @@ -0,0 +1,150 @@ +/************************************************************************************** + * include/nuttx/lcd/mio283qt9a.h + * + * Interface definition for the MI0283QT-9A LCD from Multi-Inno Technology Co., Ltd. + * This LCD is based on the Ilitek ILI9341 LCD controller. + + * Copyright (C) 2012, 2014 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. + * + **************************************************************************************/ + +#ifndef __INCLUDE_NUTTX_LCD_MIO283QT9A_H +#define __INCLUDE_NUTTX_LCD_MIO283QT9A_H + +/************************************************************************************** + * Included Files + **************************************************************************************/ + +#include <nuttx/config.h> + +#ifdef CONFIG_LCD_MIO283QT9A + +/************************************************************************************** + * Pre-processor Definitions + **************************************************************************************/ +/* Configuration **********************************************************************/ +/* CONFIG_LCD_MIO283QT9A - Enables support for the MIO283QT2-based LCD. + * CONFIG_LCD_NOGETRUN + * NX components need to know if it can read from the LCD or not. If reading from the + * LCD is supported then some graphic operations can be improved. Default: Supported + * CONFIG_LCD_LANDSCAPE - Define for 320x240 display "landscape" support. Default is + * this 320x240 "landscape" orientation. + * CONFIG_LCD_RLANDSCAPE - Define for 320x240 display "reverse landscape" support. + * Default is this 320x240 "landscape" orientation + * CONFIG_LCD_PORTRAIT - Define for 240x320 display "portrait" orientation support. + * Default is this 320x240 "landscape" orientation + * CONFIG_LCD_RPORTRAIT - Define for 240x320 display "reverse portrait" orientation + * support. Default is this 320x240 "landscape" orientation + */ + +/************************************************************************************** + * Public Types + **************************************************************************************/ + +/* This structure defines the interface to the LCD provided by the platform. The + * nature of this interface is hidden from the MIO283QT2 driver. + */ + +struct mio283qt9a_lcd_s +{ + /* Interface to write to a MIO283QT2 register. + * + * - select Select the device (as necessary). The meaning of selecting (and + * and deselecting) is not defined. select() will be called before + * starting any sequence of operations. deselect() when that sequence + * of operations is complete. + * - deselect Deselect the device (as necessary) + * - index Set register index + * - read Read data from the LCD (auto-incrementing) + * - write Write data to the LCD (auto-incrementing) + * - backlight Set the backlight power level (0=OFF; CONFIG_LCD_MAXPOWER=MAX) + */ + + void (*select)(FAR struct mio283qt9a_lcd_s *dev); + void (*deselect)(FAR struct mio283qt9a_lcd_s *dev); + void (*index)(FAR struct mio283qt9a_lcd_s *dev, uint8_t index); +#ifndef CONFIG_LCD_NOGETRUN + uint16_t (*read)(FAR struct mio283qt9a_lcd_s *dev); +#endif + void (*write)(FAR struct mio283qt9a_lcd_s *dev, uint16_t value); + void (*backlight)(FAR struct mio283qt9a_lcd_s *dev, int power); + + /* platform-specific data may follow */ +}; + +/************************************************************************************** + * Public Data + **************************************************************************************/ + +#ifdef __cplusplus +#define EXTERN extern "C" +extern "C" +{ +#else +#define EXTERN extern +#endif + +/************************************************************************************** + * Public Function Prototypes + **************************************************************************************/ + +/************************************************************************************** + * Name: mio283qt2_lcdinitialize + * + * Description: + * Initialize the LCD video hardware. The initial state of the LCD is fully + * initialized, display memory cleared, and the LCD ready to use, but with the power + * setting at 0 (full off). + * + **************************************************************************************/ + +FAR struct lcd_dev_s *mio283qt2_lcdinitialize(FAR struct mio283qt9a_lcd_s *lcd); + +/************************************************************************************** + * Name: mio283qt2_clear + * + * Description: + * This is a non-standard LCD interface. Because of the various rotations, clearing + * the display in the normal way by writing a sequences of runs that covers the + * entire display can be very slow. Here the display is cleared by simply setting + * all GRAM memory to the specified color. + * + **************************************************************************************/ + +void mio283qt2_clear(FAR struct lcd_dev_s *dev, uint16_t color); + +#undef EXTERN +#ifdef __cplusplus +} +#endif + +#endif /* CONFIG_LCD_MIO283QT9A */ +#endif /* __INCLUDE_NUTTX_LCD_MIO283QT9A_H */ |