diff options
| -rw-r--r-- | nuttx/ChangeLog | 4 | ||||
| -rw-r--r-- | nuttx/arch/mips/src/pic32mx/pic32mx-pmp.h | 31 | ||||
| -rw-r--r-- | nuttx/configs/pic32mx7mmb/README.txt | 2 | ||||
| -rw-r--r-- | nuttx/configs/pic32mx7mmb/nsh/defconfig | 5 | ||||
| -rw-r--r-- | nuttx/configs/pic32mx7mmb/src/Makefile | 2 | ||||
| -rw-r--r-- | nuttx/configs/pic32mx7mmb/src/up_lcd.c | 81 | ||||
| -rw-r--r-- | nuttx/configs/pic32mx7mmb/src/up_mio283qt2.c | 529 | ||||
| -rw-r--r-- | nuttx/drivers/lcd/Make.defs | 4 | ||||
| -rw-r--r-- | nuttx/drivers/lcd/mio283qt2.c | 1006 | ||||
| -rw-r--r-- | nuttx/include/nuttx/lcd/mio283qt2.h | 149 |
10 files changed, 1712 insertions, 101 deletions
diff --git a/nuttx/ChangeLog b/nuttx/ChangeLog index 98794f249..e49c7816c 100644 --- a/nuttx/ChangeLog +++ b/nuttx/ChangeLog @@ -2884,3 +2884,7 @@ Class (MSC) using MMC/SD card as the logical unit. Updated the default PIC32MX7 MMB board configuration so that USB and the mass storage class are enabled by default. + * drivers/lcd/mio283qt2.c and include/nuttx/lcd/mio283qt2.h: Add generic + support for the MIO283QT2 LCD. + * configs/pic32mx7mmb/src/up_mio283qt2.c: Add support for the MIO283QT2 + LCD on the PIC32MX7 MMB board. diff --git a/nuttx/arch/mips/src/pic32mx/pic32mx-pmp.h b/nuttx/arch/mips/src/pic32mx/pic32mx-pmp.h index ae1a51f34..f0eb1b9dc 100644 --- a/nuttx/arch/mips/src/pic32mx/pic32mx-pmp.h +++ b/nuttx/arch/mips/src/pic32mx/pic32mx-pmp.h @@ -120,9 +120,9 @@ #define PMP_CON_ALP (1 << 5) /* Bit 5: Address latch polarity */ #define PMP_CON_CSF_SHIFT (6) /* Bits 6-7: Chip select function */ #define PMP_CON_CSF_MASK (3 << PMP_CON_CSF_SHIFT) -#define PMP_CON_CSF_ADDR1415 (0 << PMP_CON_CSF_SHIFT) /* PMCS2/PMCS1 = address bits 15 and 14 */ -#define PMP_CON_CSF_CS2ADDR14 (1 << PMP_CON_CSF_SHIFT) /* PMCS2 = Chip Select, PMCS1 = address bit 14 */ -#define PMP_CON_CSF_CS12 (2 << PMP_CON_CSF_SHIFT) /* PMCS2/PMCS1 = Chip Select */ +# define PMP_CON_CSF_ADDR1415 (0 << PMP_CON_CSF_SHIFT) /* PMCS2/PMCS1 = address bits 15 and 14 */ +# define PMP_CON_CSF_CS2ADDR14 (1 << PMP_CON_CSF_SHIFT) /* PMCS2 = Chip Select, PMCS1 = address bit 14 */ +# define PMP_CON_CSF_CS12 (2 << PMP_CON_CSF_SHIFT) /* PMCS2/PMCS1 = Chip Select */ #define PMP_CON_PTRDEN (1 << 8) /* Bit 8: Read/write strobe port enable */ #define PMP_CON_PTWREN (1 << 9) /* Bit 9: Write enable strobe port enable */ #define PMP_CON_PMPTTL (1 << 10) /* Bit 10: PMP module TTL input buffer select */ @@ -159,11 +159,11 @@ # define PMP_MODE_MODE_MODE1 (3 << PMP_MODE_MODE_SHIFT) /* Master mode 1 */ #define PMP_MODE_MODE16 (1 << 10) /* Bit 10: 8/16-bit mode */ #define PMP_MODE_INCM_SHIFT (11) /* Bits 11-12: Increment Mode */ -#define PMP_MODE_INCM_MASK (3 << PMP_MODE_INCM_MASK) -# define PMP_MODE_INCM_NONE (0 << PMP_MODE_INCM_MASK) /* No incr or decr of addr */ -# define PMP_MODE_INCM_INCR (1 << PMP_MODE_INCM_MASK) /* Incr addr on R/W cycle */ -# define PMP_MODE_INCM_DECR (2 << PMP_MODE_INCM_MASK) /* Decr addr on R/Wcycle */ -# define PMP_MODE_INCM_SLAVE (3 << PMP_MODE_INCM_MASK) /* Slave mode auto-increment */ +#define PMP_MODE_INCM_MASK (3 << PMP_MODE_INCM_SHIFT) +# define PMP_MODE_INCM_NONE (0 << PMP_MODE_INCM_SHIFT) /* No incr or decr of addr */ +# define PMP_MODE_INCM_INCR (1 << PMP_MODE_INCM_SHIFT) /* Incr addr on R/W cycle */ +# define PMP_MODE_INCM_DECR (2 << PMP_MODE_INCM_SHIFT) /* Decr addr on R/Wcycle */ +# define PMP_MODE_INCM_SLAVE (3 << PMP_MODE_INCM_SHIFT) /* Slave mode auto-increment */ #define PMP_MODE_IRQM_SHIFT (13) /* Bits 13-14: Interrupt request mode */ #define PMP_MODE_IRQM_MASK (3 << PMP_MODE_IRQM_SHIFT) # define PMP_MODE_IRQM_NONE (0 << PMP_MODE_IRQM_SHIFT) /* No Interrupt generated */ @@ -184,26 +184,23 @@ /* Parallel Port Pin Enable Register */ -#define PMP_AEN_PTEN_SHIFT (0) /* Bits 0-15: xx */ -#define PMP_AEN_PTEN_MASK (0xffff << PMP_AEN_PTEN_SHIFT) - -#define PMP_AEN_PMCSEN_SHIFT (14) /* PTEN 14-15: PMCSx Strobe enable */ -#define PMP_AEN_PMCSEN_MASK (3 << PMP_AEN_STROBEN_SHIFT) -#define PMP_AEN_ADDR_SHIFT (2) /* PTEN 2-13: PMP address port enable */ -#define PMP_AEN_ADDR_MASK (0xfff << PMP_AEN_STROBEN_SHIFT) #define PMP_AEN_PMALEN_SHIFT (0) /* PTEN 0-1: PMALH/PMALL strobe enable */ #define PMP_AEN_PMALEN_MASK (3 << PMP_AEN_STROBEN_SHIFT) +#define PMP_AEN_ADDR_SHIFT (2) /* PTEN 2-13: PMP address port enable */ +#define PMP_AEN_ADDR_MASK (0xfff << PMP_AEN_STROBEN_SHIFT) +#define PMP_AEN_PMCSEN_SHIFT (14) /* PTEN 14-15: PMCSx Strobe enable */ +#define PMP_AEN_PMCSEN_MASK (3 << PMP_AEN_STROBEN_SHIFT) /* Parallel Port Status Register */ -#define PMP_STAT_OBE(n) (1 << (n)) +#define PMP_STAT_OBNE(n) (1 << (n)) #define PMP_STAT_OB0E (1 << 0) /* Bit 0: Output buffer 0 status empty bits */ #define PMP_STAT_OB1E (1 << 1) /* Bit 1: Output buffer 1 status empty bits */ #define PMP_STAT_OB2E (1 << 2) /* Bit 2: Output buffer 2 status empty bits */ #define PMP_STAT_OB3E (1 << 3) /* Bit 3: Output buffer 3 status empty bits */ #define PMP_STAT_OBUF (1 << 6) /* Bit 6: Output buffer underflow status */ #define PMP_STAT_OBE (1 << 7) /* Bit 7: Output buffer empty status */ -#define PMP_STAT_IBF(n) (1 << (n+8)) +#define PMP_STAT_IBNF(n) (1 << (n+8)) #define PMP_STAT_IB0F (1 << 8) /* Bit 8: Input buffer 0 status full */ #define PMP_STAT_IB1F (1 << 9) /* Bit 9: Input buffer 1 status full */ #define PMP_STAT_IB2F (1 << 10) /* Bit 10: Input buffer 2 status full */ diff --git a/nuttx/configs/pic32mx7mmb/README.txt b/nuttx/configs/pic32mx7mmb/README.txt index 4d9e42d11..a3f751b9c 100644 --- a/nuttx/configs/pic32mx7mmb/README.txt +++ b/nuttx/configs/pic32mx7mmb/README.txt @@ -75,7 +75,7 @@ PIN CONFIGURATIONS SIGNAL NAME ON-BOARD CONNE 41 PMA11/AECRS/AN12/ERXD0/RB12 LCD-YU TFT display 42 PMA10/AECOL/AN13/ERXD1/RB13 LCD-XL TFT display 43 PMA1/AETXD3/AN14/ERXD2/PMALH/RB14 LCD-CS# TFT display, HDR2 pin 3 - 44 PMA0/AETXD2/AN15/CN12/ERXD3/OCFB/ PMPA0/AN15/OCFB/CN12 + 44 PMA0/AETXD2/AN15/CN12/ERXD3/OCFB/ LCD-RS TFT display PMALL/RB15 45 VSS (grounded) --- 46 VDD P32_VDD --- diff --git a/nuttx/configs/pic32mx7mmb/nsh/defconfig b/nuttx/configs/pic32mx7mmb/nsh/defconfig index 8138fbd28..f65f4987b 100644 --- a/nuttx/configs/pic32mx7mmb/nsh/defconfig +++ b/nuttx/configs/pic32mx7mmb/nsh/defconfig @@ -1214,6 +1214,8 @@ CONFIG_NXCONSOLE_CACHESIZE=32 # # PIC32MX7 MMB LCD Hardware Configuration # +# CONFIG_LCD_MIO283QT2 +# Enables the MIO183QT2 LCD support. # 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 NxConsole can do more efficient @@ -1232,7 +1234,8 @@ CONFIG_NXCONSOLE_CACHESIZE=32 # PIC32MX7 MMB's LCD ribbon cable is at the top of the display. # Default is 320x240 "landscape" orientation. # -CONFIG_LCD_NOGETRUN=y +CONFIG_LCD_MIO283QT2=n +CONFIG_LCD_NOGETRUN=n CONFIG_LCD_LANDSCAPE=n CONFIG_LCD_RLANDSCAPE=n CONFIG_LCD_PORTRAIT=n diff --git a/nuttx/configs/pic32mx7mmb/src/Makefile b/nuttx/configs/pic32mx7mmb/src/Makefile index 5543f8a43..ccb79ee50 100644 --- a/nuttx/configs/pic32mx7mmb/src/Makefile +++ b/nuttx/configs/pic32mx7mmb/src/Makefile @@ -38,7 +38,7 @@ CFLAGS += -I$(TOPDIR)/sched ASRCS = -CSRCS = up_boot.c up_lcd.c up_leds.c up_spi.c +CSRCS = up_boot.c up_leds.c up_spi.c up_mio283qt2.c ifeq ($(CONFIG_PIC32MX_USBDEV),y) CSRCS += up_usbdev.c diff --git a/nuttx/configs/pic32mx7mmb/src/up_lcd.c b/nuttx/configs/pic32mx7mmb/src/up_lcd.c deleted file mode 100644 index 26e4e7002..000000000 --- a/nuttx/configs/pic32mx7mmb/src/up_lcd.c +++ /dev/null @@ -1,81 +0,0 @@ -/**************************************************************************** - * configs/pic32mx7mmb/src/up_lcd.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 "pic32mx-internal.h" -#include "pic32mx7mmb_internal.h" - -/**************************************************************************** - * Pre-Processor Definitions - ****************************************************************************/ -/* LCD - * - * ------ -------- ------------------------- -------------------------------- - * GPIO SIGNAL BOARD CONNECTION NOTES - * ------ -------- ------------------------- -------------------------------- - * RD2 LCD-BLED Backlight Light Low value turns off - */ - -#define GPIO_BLED (GPIO_OUTPUT|GPIO_VALUE_ZERO|GPIO_PORTD|GPIO_PIN2) - -/**************************************************************************** - * Public Functions - ****************************************************************************/ - -/**************************************************************************** - * Name: pic32mx_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 pic32mx_lcdinitialize(void) -{ - /* Just configure the backlight control as an output and turn off the - * backlight for now. - */ - - pic32mx_configgpio(GPIO_BLED); -} diff --git a/nuttx/configs/pic32mx7mmb/src/up_mio283qt2.c b/nuttx/configs/pic32mx7mmb/src/up_mio283qt2.c new file mode 100644 index 000000000..ce43990cf --- /dev/null +++ b/nuttx/configs/pic32mx7mmb/src/up_mio283qt2.c @@ -0,0 +1,529 @@ +/************************************************************************************** + * configs/stm32fdiscover/src/up_mio283qt2.c + * arch/arm/src/board/up_mio283qt2.c + * + * Interface definition for the MI0283QT-2 LCD from Multi-Inno Technology Co., Ltd. + * This LCD is based on the Himax HX8347-D LCD controller. + * + * Copyright (C) 2012 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 <errno.h> +#include <debug.h> + +#include <nuttx/arch.h> +#include <nuttx/lcd/lcd.h> +#include <nuttx/lcd/mio283qt2.h> + +#include <arch/board/board.h> + +#include "up_arch.h" +#include "pic32mx-internal.h" +#include "pic32mx-pmp.h" +#include "pic32mx7mmb_internal.h" + +#ifdef CONFIG_LCD_MIO283QT2 + +/************************************************************************************** + * Pre-processor Definitions + **************************************************************************************/ +/* Configuration **********************************************************************/ + +#ifndef CONFIG_PIC32MX_PMP +# error "CONFIG_PIC32MX_PMP is required to use the LCD" +#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 + +/* PIC32MX7MMB LCD Hardware Definitions ***********************************************/ +/* --- ---------------------------------- -------------------- ------------------------ + * PIN CONFIGURATIONS SIGNAL NAME ON-BOARD CONNECTIONS + * (Family Data Sheet Table 1-1) (PIC32MX7 Schematic) + * --- ---------------------------------- -------------------- ------------------------ + * 6 RC1/T2CK LCD_RST TFT display + * 43 PMA1/AETXD3/AN14/ERXD2/PMALH/RB14 LCD-CS# TFT display, HDR2 pin 3 + * 77 OC3/RD2 LCD_BLED LCD backlight LED + * 44 PMA0/AETXD2/AN15/CN12/ERXD3/OCFB/ LCD-RS TFT display + * PMALL/RB15 + * + * 34 PMA13/AN10/RB10/CVREFOUT LCD-YD TFT display + * 35 PMA12/AETXERR/AN11/ERXERR/RB11 LCD-XR TFT display + * 41 PMA11/AECRS/AN12/ERXD0/RB12 LCD-YU TFT display + * 42 PMA10/AECOL/AN13/ERXD1/RB13 LCD-XL TFT display + * + * 93 PMD0/RE0 PMPD0 TFT display, HDR1 pin 18 + * 94 PMD1/RE1 PMPD1 TFT display, HDR1 pin 17 + * 98 PMD2/RE2 PMPD2 TFT display, HDR1 pin 16 + * 99 PMD3/RE3 PMPD3 TFT display, HDR1 pin 15 + * 100 PMD4/RE4 PMPD4 TFT display, HDR1 pin 14 + * 3 PMD5/RE5 PMPD5 TFT display, HDR1 pin 13 + * 4 PMD6/RE6 PMPD6 TFT display, HDR1 pin 12 + * 5 PMD7/RE7 PMPD7 TFT display, HDR1 pin 11 + * 90 PMD8/C2RX/RG0 PMPD8 TFT display, HDR1 pin 10 + * 89 PMD9/C2TX/ETXERR/RG1 PMPD9 TFT display, HDR1 pin 9 + * 88 PMD10/C1TX/ETXD0/RF1 PMPD10 TFT display, HDR1 pin 8 + * 87 PMD11/C1RX/ETXD1/RF0 PMPD11 TFT display, HDR1 pin 7 + * 79 PMD12/ETXD2/IC5/RD12 PMPD12 TFT display, HDR1 pin 6 + * 80 PMD13/CN19/ETXD3/RD13 PMPD13 TFT display, HDR1 pin 5 + * 83 PMD14/CN15/ETXEN/RD6 PMPD14 TFT display, HDR1 pin 4 + * 84 PMD15/CN16/ETXCLK/RD7 PMPD15 TFT display, HDR1 pin 3 + * + * 82 CN14/PMRD/RD5 PMPRD + * 81 CN13/OC5/PMWR/RD4 PMPWR + */ + +/* RC1, Reset -- Low value holds in reset */ + +#define GPIO_LCD_RST (GPIO_OUTPUT|GPIO_VALUE_ZERO|GPIO_PORTC|GPIO_PIN1) + +/* RB14, LCD select -- Low value selects LCD */ + +#define GPIO_LCD_CS (GPIO_OUTPUT|GPIO_VALUE_ONE|GPIO_PORTB|GPIO_PIN14) + +/* RD2, Backlight -- Low value turns off */ + +#define GPIO_LCD_BLED (GPIO_OUTPUT|GPIO_VALUE_ZERO|GPIO_PORTD|GPIO_PIN2) + +/* RB15, RS -- High values selects data */ + +#define GPIO_LCD_RS (GPIO_OUTPUT|GPIO_VALUE_ZERO|GPIO_PORTB|GPIO_PIN15) + + /* Debug ******************************************************************************/ + +#ifdef CONFIG_DEBUG_LCD +# define lcddbg dbg +# define lcdvdbg vdbg +#else +# define lcddbg(x...) +# define lcdvdbg(x...) +#endif + +/************************************************************************************** + * Private Type Definition + **************************************************************************************/ + +struct pic32mx7mmb_dev_s +{ + struct mio283qt2_lcd_s dev; /* The externally visible part of the driver */ + bool rs; /* true=data selected */ + bool cs; /* true=LCD selected */ + FAR struct lcd_dev_s *drvr; /* The saved instance of the LCD driver */ +}; + +/************************************************************************************** + * Private Function Protototypes + **************************************************************************************/ +/* Low Level LCD access */ + +static void pic32mx_select(FAR struct mio283qt2_lcd_s *dev); +static void pic32mx_deselect(FAR struct mio283qt2_lcd_s *dev); +static void pic32mx_index(FAR struct mio283qt2_lcd_s *dev, uint8_t index); +#ifndef CONFIG_MIO283QT2_WRONLY +static uint16_t pic32mx_read(FAR struct mio283qt2_lcd_s *dev); +#endif +static void pic32mx_write(FAR struct mio283qt2_lcd_s *dev, uint16_t data); +static void pic32mx_backlight(FAR struct mio283qt2_lcd_s *dev, int power); + +/************************************************************************************** + * Private Data + **************************************************************************************/ + +/* This is the driver state structure (there is no retained state information) */ + +static struct pic32mx7mmb_dev_s g_pic32mx7mmb_lcd = +{ + { + .select = pic32mx_select, + .deselect = pic32mx_deselect, + .index = pic32mx_index, +#ifndef CONFIG_MIO283QT2_WRONLY + .read = pic32mx_read, +#endif + .write = pic32mx_write, + .backlight = pic32mx_backlight + } +}; + +/************************************************************************************** + * Private Functions + **************************************************************************************/ + +/************************************************************************************** + * Name: pic32mx_command + * + * Description: + * Configure to write an LCD command + * + **************************************************************************************/ + +static void pic32mx_command(FAR struct pic32mx7mmb_dev_s *priv) +{ + /* Low selects command */ + + if (priv->rs) + { + pic32mx_gpiowrite(GPIO_LCD_RS, false); + priv->rs = false; + } +} + +/************************************************************************************** + * Name: pic32mx_data + * + * Description: + * Configure to read or write LCD data + * + **************************************************************************************/ + +static void pic32mx_data(FAR struct pic32mx7mmb_dev_s *priv) +{ + /* Hi selects data */ + + if (!priv->rs) + { + pic32mx_gpiowrite(GPIO_LCD_RS, true); + priv->rs = true; + } +} + +/************************************************************************************** + * Name: pic32mx_data + * + * Description: + * Wait until the PMP is no longer busy + * + **************************************************************************************/ + +static void pic32mx_busywait(void) +{ + while ((getreg32(PIC32MX_PMP_MODE) & PMP_MODE_BUSY) != 0); +} + +/************************************************************************************** + * Name: pic32mx_select + * + * Description: + * Select the LCD device + * + **************************************************************************************/ + +static void pic32mx_select(FAR struct mio283qt2_lcd_s *dev) +{ + FAR struct pic32mx7mmb_dev_s *priv = (FAR struct pic32mx7mmb_dev_s *)dev; + + /* CS low selects */ + + if (!priv->cs) + { + pic32mx_gpiowrite(GPIO_LCD_CS, false); + priv->cs = true; + } +} + +/************************************************************************************** + * Name: pic32mx_deselect + * + * Description: + * De-select the LCD device + * + **************************************************************************************/ + +static void pic32mx_deselect(FAR struct mio283qt2_lcd_s *dev) +{ + FAR struct pic32mx7mmb_dev_s *priv = (FAR struct pic32mx7mmb_dev_s *)dev; + + /* CS high de-selects */ + + if (priv->cs) + { + pic32mx_gpiowrite(GPIO_LCD_CS, true); + priv->cs = false; + } +} + +/************************************************************************************** + * Name: pic32mx_index + * + * Description: + * Set the index register + * + **************************************************************************************/ + +static void pic32mx_index(FAR struct mio283qt2_lcd_s *dev, uint8_t index) +{ + FAR struct pic32mx7mmb_dev_s *priv = (FAR struct pic32mx7mmb_dev_s *)dev; + + /* Make sure that the PMP is not busy from the last transaction. Read data is not + * available until the busy bit becomes zero. + */ + + pic32mx_busywait(); + + /* Write the 8-bit command (on the 16-bit data bus) */ + + pic32mx_command(priv); + putreg16((uint16_t)index, PIC32MX_PMP_DIN); +} + +/************************************************************************************** + * Name: pic32mx_read + * + * Description: + * Read LCD data (GRAM data or register contents) + * + **************************************************************************************/ + +#ifndef CONFIG_MIO283QT2_WRONLY +static uint16_t pic32mx_read(FAR struct mio283qt2_lcd_s *dev) +{ + FAR struct pic32mx7mmb_dev_s *priv = (FAR struct pic32mx7mmb_dev_s *)dev; + + /* Make sure that the PMP is not busy from the last transaction. Read data is not + * available until the busy bit becomes zero. + */ + + pic32mx_busywait(); + + /* Read 16-bits of data */ + + pic32mx_data(priv); + return getreg16(PIC32MX_PMP_DIN); +} +#endif + +/************************************************************************************** + * Name: pic32mx_write + * + * Description: + * Write LCD data (GRAM data or register contents) + * + **************************************************************************************/ + +static void pic32mx_write(FAR struct mio283qt2_lcd_s *dev, uint16_t data) +{ + FAR struct pic32mx7mmb_dev_s *priv = (FAR struct pic32mx7mmb_dev_s *)dev; + + /* Make sure that the PMP is not busy from the last transaction */ + + pic32mx_busywait(); + + /* Write 16-bits of data */ + + pic32mx_data(priv); + putreg16(data, PIC32MX_PMP_DIN); +} + +/************************************************************************************** + * Name: pic32mx_write + * + * Description: + * Write LCD data (GRAM data or register contents) + * + **************************************************************************************/ + +static void pic32mx_backlight(FAR struct mio283qt2_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. + */ + + pic32mx_gpiowrite(GPIO_LCD_BLED, power > 0); +} + +/************************************************************************************** + * Public Functions + **************************************************************************************/ + +/************************************************************************************** + * 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) +{ + uint32_t regval; + + /* Only initialize the driver once. NOTE: The LCD GPIOs were already configured + * by pic32mx_lcdinitialize. + */ + + if (!g_pic32mx7mmb_lcd.drvr) + { + lcdvdbg("Initializing\n"); + + /* Hold the LCD in reset (active low) */ + + pic32mx_gpiowrite(GPIO_LCD_RST, false); + + /* Configure PMP to support the LCD */ + + putreg32(0, PIC32MX_PMP_MODE); + putreg32(0, PIC32MX_PMP_AEN); + putreg32(0, PIC32MX_PMP_CON); + + /* Set LCD timing values, PMP master mode 2, 16-bit mode, no address + * increment, and no interrupts. + */ + + regval = (PMP_MODE_WAITE_RD(0) | PMP_MODE_WAITM(3) | PMP_MODE_WAITB_1TPB | + PMP_MODE_MODE_MODE2 | PMP_MODE_MODE16 | PMP_MODE_INCM_NONE | + PMP_MODE_IRQM_NONE); + putreg32(regval, PIC32MX_PMP_MODE); + + /* Enable the PMP for reading and writing */ + + regval = (PMP_CON_CSF_ADDR1415 | PMP_CON_PTRDEN | PMP_CON_PTWREN | + PMP_CON_ADRMUX_NONE | PMP_CON_ON); + putreg32(regval, PIC32MX_PMP_CON); + + /* Bring the LCD out of reset */ + + up_mdelay(5); + pic32mx_gpiowrite(GPIO_LCD_RST, true); + + /* Configure and enable the LCD */ + + up_mdelay(50); + g_pic32mx7mmb_lcd.drvr = mio283qt2_lcdinitialize(&g_pic32mx7mmb_lcd.dev); + if (!g_pic32mx7mmb_lcd.drvr) + { + lcddbg("ERROR: mio283qt2_lcdinitialize failed\n"); + return -ENODEV; + } + } + + /* Clear the display (setting it to the color 0=black) */ + +#if 0 /* Already done in the driver */ + mio283qt2_clear(g_pic32mx7mmb_lcd.drvr, 0); +#endif + + /* Turn the display off */ + + g_pic32mx7mmb_lcd.drvr->setpower(g_pic32mx7mmb_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_pic32mx7mmb_lcd.drvr; +} + +/************************************************************************************** + * Name: up_lcduninitialize + * + * Description: + * Unitialize the LCD support + * + **************************************************************************************/ + +void up_lcduninitialize(void) +{ + /* Turn the display off */ + + g_pic32mx7mmb_lcd.drvr->setpower(g_pic32mx7mmb_lcd.drvr, 0); +} + +#endif /* CONFIG_LCD_MIO283QT2 */ + +/**************************************************************************** + * Name: pic32mx_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 pic32mx_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_MIO283QT2 + pic32mx_configgpio(GPIO_LCD_RST); + pic32mx_configgpio(GPIO_LCD_CS); + pic32mx_configgpio(GPIO_LCD_BLED); + pic32mx_configgpio(GPIO_LCD_RS); + +#else + /* Just configure the backlight control as an output and turn off the + * backlight for now. + */ + + pic32mx_configgpio(GPIO_LCD_BLED); +#endif +} + + diff --git a/nuttx/drivers/lcd/Make.defs b/nuttx/drivers/lcd/Make.defs index d3ea174d2..26b169391 100644 --- a/nuttx/drivers/lcd/Make.defs +++ b/nuttx/drivers/lcd/Make.defs @@ -55,6 +55,10 @@ ifeq ($(CONFIG_LCD_SSD1289),y) CSRCS += ssd1289.c endif +ifeq ($(CONFIG_LCD_MIO283QT2),y) + CSRCS += mio283qt2.c +endif + # Include LCD driver build support DEPPATH += --dep-path lcd diff --git a/nuttx/drivers/lcd/mio283qt2.c b/nuttx/drivers/lcd/mio283qt2.c new file mode 100644 index 000000000..ce373de7e --- /dev/null +++ b/nuttx/drivers/lcd/mio283qt2.c @@ -0,0 +1,1006 @@ +/************************************************************************************** + * drivers/lcd/mio283qt2.c + * + * This is a driver for the MI0283QT-2 LCD from Multi-Inno Technology Co., Ltd. This + * LCD is based on the Himax HX8347-D LCD controller. + * + * Copyright (C) 2012 Gregory Nutt. All rights reserved. + * Authors: Gregory Nutt <gnutt@nuttx.org> + * + * References: + * 1) LCD Module Specification, Model : MI0283QT-2, Multi-Inno Technology Co., + * Ltd., Revision 1.0 + * 2) Data Sheet: HX8347-D(T), 240RGB x 320 dot, 262K color, with internal GRAM, TFT + * Mobile Single Chip Driver Version 02 March, Doc No. HX8347-D(T)-DS, Himax + * Technologies, Inc., 2009, + * + * 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.h> +#include <nuttx/lcd/lcd.h> +#include <nuttx/lcd/mio283qt2.h> + +#ifdef CONFIG_LCD_MIO283QT2 + +/************************************************************************************** + * 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 MIO283QT2_XRES 320 +# define MIO283QT2_YRES 240 +#else +# define MIO283QT2_XRES 240 +# define MIO283QT2_YRES 320 +#endif + +/* Color depth and format */ + +#define MIO283QT2_BPP 16 +#define MIO283QT2_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 HIMAX_ID 0x0047 + +/* LCD Profiles ***********************************************************************/ +/* Many details of the controller initialization must, unfortunately, vary from LCD to + * LCD. I have looked at the spec and at three different drivers for LCDs that have + * MIO283QT2 controllers. I have tried to summarize these differences as "LCD profiles" + * + * Most of the differences between LCDs are nothing more than a few minor bit + * settings. The most significant difference betwen LCD drivers in is the + * manner in which the LCD is powered up and in how the power controls are set. + * My suggestion is that if you have working LCD initialization code, you should + * simply replace the code in mio283qt2_hwinitialize with your working code. + */ + +#if defined (CONFIG_MIO283QT2_PROFILE2) +# undef MIO283QT2_USE_SIMPLE_INIT + + /* PWRCTRL1: AP=smalll-to-medium, DC=Flinex24, BT=+5/-4, DCT=Flinex24 */ + +# define PWRCTRL1_SETTING \ + (MIO283QT2_PWRCTRL1_AP_SMMED | MIO283QT2_PWRCTRL1_DC_FLINEx24 | \ + MIO283QT2_PWRCTRL1_BT_p5m4 | MIO283QT2_PWRCTRL1_DCT_FLINEx24) + + /* PWRCTRL2: 5.1v */ + +# define PWRCTRL2_SETTING MIO283QT2_PWRCTRL2_VRC_5p1V + + /* PWRCTRL3: x 2.165 + * NOTE: Many drivers have bit 8 set which is not defined in the MIO283QT2 spec. + */ + +# define PWRCTRL3_SETTING MIO283QT2_PWRCTRL3_VRH_x2p165 + + /* PWRCTRL4: VDV=9 + VCOMG */ + +# define PWRCTRL4_SETTING (MIO283QT2_PWRCTRL4_VDV(9) | MIO283QT2_PWRCTRL4_VCOMG) + + /* PWRCTRL5: VCM=56 + NOTP */ + +# define PWRCTRL5_SETTING (MIO283QT2_PWRCTRL5_VCM(56) | MIO283QT2_PWRCTRL5_NOTP) + +#elif defined (CONFIG_MIO283QT2_PROFILE3) +# undef MIO283QT2_USE_SIMPLE_INIT + + /* PWRCTRL1: AP=smalll-to-medium, DC=Flinex24, BT=+5/-4, DCT=Flinex24 */ + +# define PWRCTRL1_SETTING \ + (MIO283QT2_PWRCTRL1_AP_SMMED | MIO283QT2_PWRCTRL1_DC_FLINEx24 | \ + MIO283QT2_PWRCTRL1_BT_p5m4 | MIO283QT2_PWRCTRL1_DCT_FLINEx24) + + /* PWRCTRL2: 5.1v */ + +# define PWRCTRL2_SETTING MIO283QT2_PWRCTRL2_VRC_5p1V + + /* PWRCTRL3: x 2.165 + * NOTE: Many drivers have bit 8 set which is not defined in the MIO283QT2 spec. + */ + +# define PWRCTRL3_SETTING MIO283QT2_PWRCTRL3_VRH_x2p165 + + /* PWRCTRL4: VDV=9 + VCOMG */ + +# define PWRCTRL4_SETTING (MIO283QT2_PWRCTRL4_VDV(9) | MIO283QT2_PWRCTRL4_VCOMG) + + /* PWRCTRL5: VCM=56 + NOTP */ + +# define PWRCTRL5_SETTING (MIO283QT2_PWRCTRL5_VCM(56) | MIO283QT2_PWRCTRL5_NOTP) + +#else /* if defined (CONFIG_MIO283QT2_PROFILE1) */ +# undef MIO283QT2_USE_SIMPLE_INIT +# define MIO283QT2_USE_SIMPLE_INIT 1 + + /* PWRCTRL1: AP=medium-to-large, DC=Fosc/4, BT=+5/-4, DCT=Fosc/4 */ + +# define PWRCTRL1_SETTING \ + (MIO283QT2_PWRCTRL1_AP_MEDLG | MIO283QT2_PWRCTRL1_DC_FOSd4 | \ + MIO283QT2_PWRCTRL1_BT_p5m4 | MIO283QT2_PWRCTRL1_DCT_FOSd4) + + /* PWRCTRL2: 5.3v */ + +# define PWRCTRL2_SETTING MIO283QT2_PWRCTRL2_VRC_5p3V + + /* PWRCTRL3: x 2.570 + * NOTE: Many drivers have bit 8 set which is not defined in the MIO283QT2 spec. + */ + +# define PWRCTRL3_SETTING MIO283QT2_PWRCTRL3_VRH_x2p570 + + /* PWRCTRL4: VDV=12 + VCOMG */ + +# define PWRCTRL4_SETTING (MIO283QT2_PWRCTRL4_VDV(12) | MIO283QT2_PWRCTRL4_VCOMG) + + /* PWRCTRL5: VCM=60 + NOTP */ + +# define PWRCTRL5_SETTING (MIO283QT2_PWRCTRL5_VCM(60) | MIO283QT2_PWRCTRL5_NOTP) + +#endif + +/* 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 mio283qt2_dev_s +{ + /* Publically visible device structure */ + + struct lcd_dev_s dev; + + /* Private LCD-specific information follows */ + + FAR struct mio283qt2_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[MIO283QT2_XRES]; +}; + +/************************************************************************************** + * Private Function Protototypes + **************************************************************************************/ +/* Low Level LCD access */ + +static void mio283qt2_putreg(FAR struct mio283qt2_lcd_s *lcd, uint8_t regaddr, + uint16_t regval); +#ifndef CONFIG_LCD_NOGETRUN +static uint16_t mio283qt2_readreg(FAR struct mio283qt2_lcd_s *lcd, uint8_t regaddr); +#endif +static inline void mio283qt2_gramwrite(FAR struct mio283qt2_lcd_s *lcd, uint16_t rgbcolor); +#ifndef CONFIG_LCD_NOGETRUN +static inline void mio283qt2_readsetup(FAR struct mio283qt2_lcd_s *lcd, FAR uint16_t *accum); +static inline uint16_t mio283qt2_gramread(FAR struct mio283qt2_lcd_s *lcd, FAR uint16_t *accum); +#endif +static void mio283qt2_setarea(FAR struct mio283qt2_lcd_s *lcd, + uint16_t x0, uint16_t y0, uint16_t x1, uint16_t y1); + +/* LCD Data Transfer Methods */ + +static int mio283qt2_putrun(fb_coord_t row, fb_coord_t col, FAR const uint8_t *buffer, + size_t npixels); +static int mio283qt2_getrun(fb_coord_t row, fb_coord_t col, FAR uint8_t *buffer, + size_t npixels); + +/* LCD Configuration */ + +static int mio283qt2_getvideoinfo(FAR struct lcd_dev_s *dev, + FAR struct fb_videoinfo_s *vinfo); +static int mio283qt2_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 mio283qt2_getpower(FAR struct lcd_dev_s *dev); +static int mio283qt2_setpower(FAR struct lcd_dev_s *dev, int power); +static int mio283qt2_getcontrast(FAR struct lcd_dev_s *dev); +static int mio283qt2_setcontrast(FAR struct lcd_dev_s *dev, unsigned int contrast); + +/* Initialization */ + +static inline int mio283qt2_hwinitialize(FAR struct mio283qt2_dev_s *priv); + +/************************************************************************************** + * Private Data + **************************************************************************************/ + +/* This driver can support only a signal MIO283QT2 device. This is due to an + * unfortunate decision made whent he getrun and putrun methods were designed. The + * following is the single MIO283QT2 driver state instance: + */ + +static struct mio283qt2_dev_s g_lcddev; + +/************************************************************************************** + * Private Functions + **************************************************************************************/ + +/************************************************************************************** + * Name: mio283qt2_putreg(lcd, + * + * Description: + * Write to an LCD register + * + **************************************************************************************/ + +static void mio283qt2_putreg(FAR struct mio283qt2_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: mio283qt2_readreg + * + * Description: + * Read from an LCD register + * + **************************************************************************************/ + +#ifndef CONFIG_LCD_NOGETRUN +static uint16_t mio283qt2_readreg(FAR struct mio283qt2_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: mio283qt2_gramselect + * + * Description: + * Setup to read or write multiple pixels to the GRAM memory + * + **************************************************************************************/ + +static inline void mio283qt2_gramselect(FAR struct mio283qt2_lcd_s *lcd) +{ + lcd->index(lcd, 0x22); +} + +/************************************************************************************** + * Name: mio283qt2_gramwrite + * + * Description: + * Setup to read or write multiple pixels to the GRAM memory + * + **************************************************************************************/ + +static inline void mio283qt2_gramwrite(FAR struct mio283qt2_lcd_s *lcd, uint16_t data) +{ + lcd->write(lcd, data); +} + +/************************************************************************************** + * Name: mio283qt2_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 mio283qt2_readsetup(FAR struct mio283qt2_lcd_s *lcd, FAR uint16_t *accum) +{ + /* Read-ahead one pixel */ + + *accum = lcd->read(lcd); +} +#endif + +/************************************************************************************** + * Name: mio283qt2_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 mio283qt2_gramread(FAR struct mio283qt2_lcd_s *lcd, FAR uint16_t *accum) +{ + /* Read the value (GRAM register already selected) */ + + return lcd->read(lcd); +} +#endif + +/************************************************************************************** + * Name: mio283qt2_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 mio283qt2_setarea(FAR struct mio283qt2_lcd_s *lcd, + uint16_t x0, uint16_t y0, uint16_t x1, uint16_t y1) +{ + mio283qt2_putreg(lcd, 0x03, (x0 & 0x00ff)); /* set x0 */ + mio283qt2_putreg(lcd, 0x02, (x0 >> 8)); /* set x0 */ + mio283qt2_putreg(lcd, 0x05, (x1 & 0x00ff)); /* set x1 */ + mio283qt2_putreg(lcd, 0x04, (x1 >> 8)); /* set x1 */ + mio283qt2_putreg(lcd, 0x07, (y0 & 0x00ff)); /* set y0 */ + mio283qt2_putreg(lcd, 0x06, (y0 >> 8)); /* set y0 */ + mio283qt2_putreg(lcd, 0x09, (y1 & 0x00ff)); /* set y1 */ + mio283qt2_putreg(lcd, 0x08, (y1 >> 8)); /* set y1 */ +} + +/************************************************************************************** + * Name: mio283qt2_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 mio283qt2_dumprun(FAR const char *msg, FAR uint16_t *run, size_t npixels) +{ + int i, j; + + lib_rawprintf("\n%s:\n", msg); + for (i = 0; i < npixels; i += 16) + { + up_putc(' '); + lib_rawprintf(" "); + for (j = 0; j < 16; j++) + { + lib_rawprintf(" %04x", *run++); + } + up_putc('\n'); + } +} +#endif + +/************************************************************************************** + * Name: mio283qt2_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 mio283qt2_putrun(fb_coord_t row, fb_coord_t col, FAR const uint8_t *buffer, + size_t npixels) +{ + FAR struct mio283qt2_dev_s *priv = &g_lcddev; + FAR struct mio283qt2_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. */ + + mio283qt2_setarea(lcd, col, row, col + npixels - 1, row); + mio283qt2_gramselect(lcd); + + for (i = 0; i < npixels; i++) + { + mio283qt2_gramwrite(lcd, *src); + src++; + } + + /* De-select the LCD */ + + lcd->deselect(lcd); + return OK; +} + +/************************************************************************************** + * Name: mio283qt2_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 mio283qt2_getrun(fb_coord_t row, fb_coord_t col, FAR uint8_t *buffer, + size_t npixels) +{ +#ifndef CONFIG_LCD_NOGETRUN + FAR struct mio283qt2_dev_s *priv = &g_lcddev; + FAR struct mio283qt2_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); + + /* Select the LCD */ + + lcd->select(lcd); + + /* Read the run from GRAM. */ + + /* Select the LCD */ + + lcd->select(lcd); + + /* Red the run fram GRAM. */ + + mio283qt2_setarea(lcd, col, row, col + npixels - 1, row); + mio283qt2_gramselect(lcd); + + /* Prime the pump for unaligned read data */ + + mio283qt2_readsetup(lcd, &accum); + + for (i = 0; i < npixels; i++) + { + *dest++ = mio283qt2_gramread(lcd, &accum); + } + + /* De-select the LCD */ + + lcd->deselect(lcd); + return OK; +#else + return -ENOSYS; +#endif +} + +/************************************************************************************** + * Name: mio283qt2_getvideoinfo + * + * Description: + * Get information about the LCD video controller configuration. + * + **************************************************************************************/ + +static int mio283qt2_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", + MIO283QT2_COLORFMT, MIO283QT2_XRES, MIO283QT2_XRES); + + vinfo->fmt = MIO283QT2_COLORFMT; /* Color format: RGB16-565: RRRR RGGG GGGB BBBB */ + vinfo->xres = MIO283QT2_XRES; /* Horizontal resolution in pixel columns */ + vinfo->yres = MIO283QT2_YRES; /* Vertical resolution in pixel rows */ + vinfo->nplanes = 1; /* Number of color planes supported */ + return OK; +} + +/************************************************************************************** + * Name: mio283qt2_getplaneinfo + * + * Description: + * Get information about the configuration of each LCD color plane. + * + **************************************************************************************/ + +static int mio283qt2_getplaneinfo(FAR struct lcd_dev_s *dev, unsigned int planeno, + FAR struct lcd_planeinfo_s *pinfo) +{ + FAR struct mio283qt2_dev_s *priv = (FAR struct mio283qt2_dev_s *)dev; + + DEBUGASSERT(dev && pinfo && planeno == 0); + lcdvdbg("planeno: %d bpp: %d\n", planeno, MIO283QT2_BPP); + + pinfo->putrun = mio283qt2_putrun; /* Put a run into LCD memory */ + pinfo->getrun = mio283qt2_getrun; /* Get a run from LCD memory */ + pinfo->buffer = (uint8_t*)priv->runbuffer; /* Run scratch buffer */ + pinfo->bpp = MIO283QT2_BPP; /* Bits-per-pixel */ + return OK; +} + +/************************************************************************************** + * Name: mio283qt2_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 mio283qt2_getpower(FAR struct lcd_dev_s *dev) +{ + lcdvdbg("power: %d\n", 0); + return g_lcddev.power; +} + +/************************************************************************************** + * Name: mio283qt2_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 mio283qt2_poweroff(FAR struct mio283qt2_lcd_s *lcd) +{ + /* Set the backlight off */ + + lcd->backlight(lcd, 0); + + /* Turn the display off */ + + mio283qt2_putreg(lcd, 0x28, 0x0000); /* GON=0, DTE=0, D=0 */ + + /* Remember the power off state */ + + g_lcddev.power = 0; + return OK; +} + +/************************************************************************************** + * Name: mio283qt2_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 mio283qt2_setpower(FAR struct lcd_dev_s *dev, int power) +{ + FAR struct mio283qt2_dev_s *priv = (FAR struct mio283qt2_dev_s *)dev; + FAR struct mio283qt2_lcd_s *lcd = priv->lcd; + + lcdvdbg("power: %d\n", power); + DEBUGASSERT((unsigned)power <= CONFIG_LCD_MAXPOWER); + + /* Set new power level */ + + if (power > 0) + { + /* Set the backlight level */ + + lcd->backlight(lcd, power); + + /* Then turn the display on: + * D=ON(3) CM=0 DTE=1 GON=1 SPT=0 VLE=0 PT=0 + */ + + /* Display on */ + + mio283qt2_putreg(lcd, 0x28, 0x0038); /* GON=1, DTE=1, D=2 */ + up_mdelay(40); + mio283qt2_putreg(lcd, 0x28, 0x003c); /* GON=1, DTE=1, D=3 */ + + g_lcddev.power = power; + } + else + { + /* Turn the display off */ + + mio283qt2_poweroff(lcd); + } + + return OK; +} + +/************************************************************************************** + * Name: mio283qt2_getcontrast + * + * Description: + * Get the current contrast setting (0-CONFIG_LCD_MAXCONTRAST). + * + **************************************************************************************/ + +static int mio283qt2_getcontrast(FAR struct lcd_dev_s *dev) +{ + lcdvdbg("Not implemented\n"); + return -ENOSYS; +} + +/************************************************************************************** + * Name: mio283qt2_setcontrast + * + * Description: + * Set LCD panel contrast (0-CONFIG_LCD_MAXCONTRAST). + * + **************************************************************************************/ + +static int mio283qt2_setcontrast(FAR struct lcd_dev_s *dev, unsigned int contrast) +{ + lcdvdbg("contrast: %d\n", contrast); + return -ENOSYS; +} + +/************************************************************************************** + * Name: mio283qt2_hwinitialize + * + * Description: + * Initialize the LCD hardware. + * + **************************************************************************************/ + +static inline int mio283qt2_hwinitialize(FAR struct mio283qt2_dev_s *priv) +{ + FAR struct mio283qt2_lcd_s *lcd = priv->lcd; +#ifndef CONFIG_LCD_NOGETRUN + uint16_t id; +#endif + + /* Select the LCD */ + + lcd->select(lcd); + + /* Read the HIMAX ID registger (0x00) */ + +#ifndef CONFIG_LCD_NOGETRUN + id = mio283qt2_readreg(lcd, 0x00); + lcddbg("LCD ID: %04x\n", id); + + /* Check if the ID is for the MIO283QT2 */ + + if (id == HIMAX_ID) +#endif + { + /* Driving ability */ + + mio283qt2_putreg(lcd, 0xea, 0x0000); /* PTBA[15:8] */ + mio283qt2_putreg(lcd, 0xeb, 0x0020); /* PTBA[7:0] */ + mio283qt2_putreg(lcd, 0xec, 0x000c); /* STBA[15:8] */ + mio283qt2_putreg(lcd, 0xed, 0x00c4); /* STBA[7:0] */ + mio283qt2_putreg(lcd, 0xe8, 0x0040); /* OPON[7:0] */ + mio283qt2_putreg(lcd, 0xe9, 0x0038); /* OPON1[7:0] */ + mio283qt2_putreg(lcd, 0xf1, 0x0001); /* OTPS1B */ + mio283qt2_putreg(lcd, 0xf2, 0x0010); /* GEN */ + mio283qt2_putreg(lcd, 0x27, 0x00a3); + + /* Power voltage */ + + mio283qt2_putreg(lcd, 0x1b, 0x001b); /* VRH = 4.65 */ + mio283qt2_putreg(lcd, 0x1a, 0x0001); /* BT */ + mio283qt2_putreg(lcd, 0x24, 0x002f); /* VMH */ + mio283qt2_putreg(lcd, 0x25, 0x0057); /* VML */ + + /* Vcom offset */ + + mio283qt2_putreg(lcd, 0x23, 0x008d); /* For flicker adjust */ + + /* Power on */ + + mio283qt2_putreg(lcd, 0x18, 0x0036); + mio283qt2_putreg(lcd, 0x19, 0x0001); /* Start oscillator */ + mio283qt2_putreg(lcd, 0x01, 0x0000); /* Wakeup */ + mio283qt2_putreg(lcd, 0x1f, 0x0088); + up_mdelay(5); + mio283qt2_putreg(lcd, 0x1f, 0x0080); + up_mdelay(5); + mio283qt2_putreg(lcd, 0x1f, 0x0090); + up_mdelay(5); + mio283qt2_putreg(lcd, 0x1f, 0x00d0); + up_mdelay(5); + + /* Gamma 2.8 setting */ + + mio283qt2_putreg(lcd, 0x40, 0x0000); + mio283qt2_putreg(lcd, 0x41, 0x0000); + mio283qt2_putreg(lcd, 0x42, 0x0001); + mio283qt2_putreg(lcd, 0x43, 0x0013); + mio283qt2_putreg(lcd, 0x44, 0x0010); + mio283qt2_putreg(lcd, 0x45, 0x0026); + mio283qt2_putreg(lcd, 0x46, 0x0008); + mio283qt2_putreg(lcd, 0x47, 0x0051); + mio283qt2_putreg(lcd, 0x48, 0x0002); + mio283qt2_putreg(lcd, 0x49, 0x0012); + mio283qt2_putreg(lcd, 0x4a, 0x0018); + mio283qt2_putreg(lcd, 0x4b, 0x0019); + mio283qt2_putreg(lcd, 0x4c, 0x0014); + + mio283qt2_putreg(lcd, 0x50, 0x0019); + mio283qt2_putreg(lcd, 0x51, 0x002f); + mio283qt2_putreg(lcd, 0x52, 0x002c); + mio283qt2_putreg(lcd, 0x53, 0x003e); + mio283qt2_putreg(lcd, 0x54, 0x003f); + mio283qt2_putreg(lcd, 0x55, 0x003f); + mio283qt2_putreg(lcd, 0x56, 0x002e); + mio283qt2_putreg(lcd, 0x57, 0x0077); + mio283qt2_putreg(lcd, 0x58, 0x000b); + mio283qt2_putreg(lcd, 0x59, 0x0006); + mio283qt2_putreg(lcd, 0x5a, 0x0007); + mio283qt2_putreg(lcd, 0x5b, 0x000d); + mio283qt2_putreg(lcd, 0x5c, 0x001d); + mio283qt2_putreg(lcd, 0x5d, 0x00cc); + + /* 4K Color Selection */ + + mio283qt2_putreg(lcd, 0x17, 0x0003); + mio283qt2_putreg(lcd, 0x17, 0x0005); /* 0x0005=65k, 0x0006=262k */ + + /* Panel characteristics */ + + mio283qt2_putreg(lcd, 0x36, 0x0000); + + /* Display Setting */ + + mio283qt2_putreg(lcd, 0x01, 0x0000); /* IDMON=0, INVON=0, NORON=0, PTLON=0 */ + +#if defined(CONFIG_LCD_LANDSCAPE) + mio283qt2_putreg(lcd, 0x16, 0x00a8); /* MY=1, MX=0, MV=1, ML=0, BGR=1 */ +#elif defined(CONFIG_LCD_PORTRAIT) + mio283qt2_putreg(lcd, 0x16, 0x0008); /* MY=0, MX=0, MV=0, ML=0, BGR=1 */ +#elif defined(CONFIG_LCD_RLANDSCAPE) + mio283qt2_putreg(lcd, 0x16, 0x0068); /* MY=0, MX=1, MV=1, ML=0, BGR=1 */ +#elif defined(CONFIG_LCD_RPORTRAIT) + mio283qt2_putreg(lcd, 0x16, 0x00c8); /* MY=1, MX=0, MV=1, ML=0, BGR=1 */ +#endif + + /* Window setting */ + + mio283qt2_setarea(lcd, 0, 0, (MIO283QT2_XRES-1), (MIO283QT2_YRES-1)); + return OK; + } +#ifndef CONFIG_LCD_NOGETRUN + else + { + lcddbg("Unsupported LCD type\n"); + return -ENODEV; + } +#endif + + /* De-select the LCD */ + + lcd->deselect(lcd); +} + + /************************************************************************************* + * Public Functions + **************************************************************************************/ + +/************************************************************************************** + * 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 mio283qt2_lcd_s *lcd) +{ + int ret; + + lcdvdbg("Initializing\n"); + + /* If we ccould support multiple MIO283QT2 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. + */ + + FAR struct mio283qt2_dev_s *priv = &g_lcddev; + + /* Initialize the driver data structure */ + + priv->dev.getvideoinfo = mio283qt2_getvideoinfo; + priv->dev.getplaneinfo = mio283qt2_getplaneinfo; + priv->dev.getpower = mio283qt2_getpower; + priv->dev.setpower = mio283qt2_setpower; + priv->dev.getcontrast = mio283qt2_getcontrast; + priv->dev.setcontrast = mio283qt2_setcontrast; + priv->lcd = lcd; + + /* Configure and enable LCD */ + + ret = mio283qt2_hwinitialize(priv); + if (ret == OK) + { + /* Clear the display (setting it to the color 0=black) */ + + mio283qt2_clear(&priv->dev, 0); + + /* Turn the display off */ + + mio283qt2_poweroff(lcd); + return &g_lcddev.dev; + } + + return NULL; +} + +/************************************************************************************** + * Name: mio283qt2_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 mio283qt2_clear(FAR struct lcd_dev_s *dev, uint16_t color) +{ + FAR struct mio283qt2_dev_s *priv = (FAR struct mio283qt2_dev_s *)dev; + FAR struct mio283qt2_lcd_s *lcd = priv->lcd; + uint32_t i; + + /* Select the LCD and set the drawring area */ + + lcd->select(lcd); + mio283qt2_setarea(lcd, 0, 0, (MIO283QT2_XRES-1), (MIO283QT2_YRES-1)); + + /* Prepare to write GRAM data */ + + mio283qt2_gramselect(lcd); + + /* Copy color into all of GRAM. Orientation does not matter in this case. */ + + for (i = 0; i < MIO283QT2_XRES * MIO283QT2_YRES; i++) + { + mio283qt2_gramwrite(lcd, color); + } + + /* De-select the LCD */ + + lcd->deselect(lcd); +} + +#endif /* CONFIG_LCD_MIO283QT2 */ diff --git a/nuttx/include/nuttx/lcd/mio283qt2.h b/nuttx/include/nuttx/lcd/mio283qt2.h new file mode 100644 index 000000000..0ae1c5fd7 --- /dev/null +++ b/nuttx/include/nuttx/lcd/mio283qt2.h @@ -0,0 +1,149 @@ +/************************************************************************************** + * include/nuttx/lcd/mio283qt2.h + * + * Interface definition for the MI0283QT-2 LCD from Multi-Inno Technology Co., Ltd. + * This LCD is based on the Himax HX8347-D LCD controller. + + * 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. + * + **************************************************************************************/ + +#ifndef __INCLUDE_NUTTX_LCD_MIO283QT2_H +#define __INCLUDE_NUTTX_LCD_MIO283QT2_H + +/************************************************************************************** + * Included Files + **************************************************************************************/ + +#include <nuttx/config.h> + +#ifdef CONFIG_LCD_MIO283QT2 + +/************************************************************************************** + * Pre-processor Definitions + **************************************************************************************/ +/* Configuration **********************************************************************/ +/* CONFIG_LCD_MIO283QT2 - 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 mio283qt2_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 mio283qt2_lcd_s *dev); + void (*deselect)(FAR struct mio283qt2_lcd_s *dev); + void (*index)(FAR struct mio283qt2_lcd_s *dev, uint8_t index); +#ifndef CONFIG_LCD_NOGETRUN + uint16_t (*read)(FAR struct mio283qt2_lcd_s *dev); +#endif + void (*write)(FAR struct mio283qt2_lcd_s *dev, uint16_t value); + void (*backlight)(FAR struct mio283qt2_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). + * + **************************************************************************************/ + +EXTERN FAR struct lcd_dev_s *mio283qt2_lcdinitialize(FAR struct mio283qt2_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. + * + **************************************************************************************/ + +EXTERN void mio283qt2_clear(FAR struct lcd_dev_s *dev, uint16_t color); + +#undef EXTERN +#ifdef __cplusplus +} +#endif + +#endif /* CONFIG_LCD_MIO283QT2 */ +#endif /* __INCLUDE_NUTTX_LCD_MIO283QT2_H */
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