drivers/lcd: Add support to Alphanumeric Sitronix ST7032i display
This commit is contained in:
Alan Carvalho de Assis
Gregory Nutt
parent
0af39e1493
commit
ed64da90fa
@ -1198,5 +1198,18 @@ config LCD_BACKPACK
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See pcf8574_lcd_backpack_readme.txt
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config LCD_ST7032
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bool "ST7032 over I2C (i.e. JLX1602G-390)"
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default n
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depends on I2C
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---help---
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Enable support for ST7032i on I2C. This driver was tested with
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JLX1602G-390 that has 10 pins: CAP1N, CAP1P, VOUT, VCC, SHLS,
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SHLC, GND, SDA, SCL, XRESET. The XRESET pin is connected to a
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pull-up resistor, then the module automatically executes power-on
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reset when power is supplied to the module. The pin SHLS is also
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connected to a pull-up resistor and the pin SHLC is connected to
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the ground. So only I2C pins SDA and SCL are used by NuttX.
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endif # SLCD
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endmenu # LCD Driver Support
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@ -128,6 +128,10 @@ ifeq ($(CONFIG_SLCD),y)
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ifeq ($(CONFIG_LCD_BACKPACK),y)
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CSRCS += pcf8574_lcd_backpack.c
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endif
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ifeq ($(CONFIG_LCD_ST7032),y)
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CSRCS += st7032.c
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endif
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endif # CONFIG_SLCD
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# Include LCD driver build support (the nested if-then-else implements an OR)
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1080
drivers/lcd/st7032.c
Normal file
1080
drivers/lcd/st7032.c
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File diff suppressed because it is too large
Load Diff
158
include/nuttx/lcd/st7032.h
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158
include/nuttx/lcd/st7032.h
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@ -0,0 +1,158 @@
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/****************************************************************************
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* include/nuttx/leds/st7032.h
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*
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* Copyright (C) 2018 Alan Carvalho de Assis. All rights reserved.
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* Author: Alan Carvalho de Assis <acassis@gmail.com>
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*
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* Redistribution and use in source and binary forms, with or without
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* modification, are permitted provided that the following conditions
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* are met:
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*
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* 1. Redistributions of source code must retain the above copyright
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* notice, this list of conditions and the following disclaimer.
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* 2. Redistributions in binary form must reproduce the above copyright
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* notice, this list of conditions and the following disclaimer in
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* the documentation and/or other materials provided with the
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* distribution.
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* 3. Neither the name NuttX nor the names of its contributors may be
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* used to endorse or promote products derived from this software
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* without specific prior written permission.
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*
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* THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
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* "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
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* LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS
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* FOR A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE
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* COPYRIGHT OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT,
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* INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING,
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* BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS
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* OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED
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* AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
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* LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN
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* ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE
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* POSSIBILITY OF SUCH DAMAGE.
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*
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****************************************************************************/
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#ifndef __INCLUDE_NUTTX_LEDS_ST7032_H
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#define __INCLUDE_NUTTX_LEDS_ST7032_H
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/****************************************************************************
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* Included Files
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****************************************************************************/
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#include <nuttx/config.h>
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#include <nuttx/fs/ioctl.h>
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/* Configuration
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* CONFIG_I2C - Enables support for SPI drivers
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* CONFIG_LCD_ST7032 - Enables support for the ST7032 driver
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*/
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#if defined(CONFIG_I2C) && defined(CONFIG_LCD_ST7032)
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/****************************************************************************
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* Pre-processor Definitions
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****************************************************************************/
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/* ST7032 Address */
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#define ST7032_I2C_ADDR 0x3e
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/* Default contrast */
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#define DEFAULT_CONTRAST 0x18
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/* Default row and col */
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#define ST7032_MAX_ROW 2 /* Default for JLX1602G-390 display */
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#define ST7032_MAX_COL 16 /* Default for JLX1602G-390 display */
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/* ST7032 register addresses */
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#define ST7032_CTRLBIT_CO 0x80 /* Control Command bit */
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#define ST7032_CTRLBIT_RS 0x40 /* Select Register: Instruction/Data Register */
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#define ST7032_CLEAR_DISPLAY 0x01 /* Clear display */
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#define ST7032_RETURN_HOME 0x02 /* Set DDRAM to 00H and return cursor to its original position */
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#define ST7032_ENTRY_MODE_SET 0x04 /* Set cursor move direction and display shift */
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#define ST7032_DISPLAY_ON_OFF 0x08 /* Display ON/OFF */
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#define ST7032_CUR_DISP_SHIFT 0x10 /* Set cursor/display direction/shift without changing DDRAM */
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#define ST7032_FUNCTION_SET 0x20 /* DL=interf. 8/4-bit; N=number lines 2/1; DH=Double Font Height IS= Inst. Table Select */
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#define ST7032_SET_CGRAM_ADDR 0x40 /* Set CGRAM addr in addr counter */
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#define ST7032_SET_DDRAM_ADDR 0x80 /* Set DDRAM addr in addr counter */
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#define ST7032_INT_OSC_FREQ 0x10 /* Adjust internal oscillator frequency */
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#define ST7032_SET_ICON_ADDR 0x40 /* Set ICON addr in addr counter */
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#define ST7032_POWER_ICON_CTRL_SET 0x50 /* Icon, booster ON/OFF and contrast */
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#define ST7032_FOLLOWER_CTRL 0x60 /* Set follower ON/OFF and amplified ratio */
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#define ST7032_CONTRAST_SET 0x70 /* Contrast set for internal follower mode */
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#define ST7032_LINE1_ADDR 0x80 /* First line address */
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#define ST7032_LINE2_ADR 0xc0 /* Second line address */
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/* Bits and flags definitions */
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#define ENTRY_MODE_SET_S 0x01 /* Shift of entire display */
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#define ENTRY_MODE_SET_ID 0x02 /* I/D : Increment / decrement of DDRAM address (cursor or blink) */
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#define DISPLAY_ON_OFF_B 0x01 /* B : Cursor Blink ON/OFF control bit */
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#define DISPLAY_ON_OFF_C 0x02 /* C : Cursor ON/OFF control bit */
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#define DISPLAY_ON_OFF_D 0x04 /* D : Display ON/OFF control bit */
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#define FUNCTION_SET_IS 0x01 /* IS : normal/extension instruction select */
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#define FUNCTION_SET_DH 0x04 /* DH : Double height font type control bit*/
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#define FUNCTION_SET_N 0x08 /* N : Display line number control bit */
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#define FUNCTION_SET_DL 0x10 /* DL : Interface data length control bit */
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#define CUR_DISP_SHIFT_RL 0x04 /* R/L: Right/Left */
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#define CUR_DISP_SHIFT_SC 0x08 /* S/C: Screen/Cursor select bit */
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#define INT_OSC_FREQ_F0 0x01 /* F2,F1,F0 : Internal OSC frequency adjust */
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#define INT_OSC_FREQ_F1 0x02 /* F2,F1,F0 : Internal OSC frequency adjust */
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#define INT_OSC_FREQ_F2 0x04 /* F2,F1,F0 : Internal OSC frequency adjust */
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#define INT_OSC_FREQ_BS 0x08 /* BS: bias selection */
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#define POWER_ICON_BOST_CTRL_BON 0x04 /* Bon: switch booster circuit */
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#define POWER_ICON_BOST_CTRL_ION 0x08 /* Ion: set ICON display on/off */
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#define FOLLOWER_CTRL_RAB0 0x01 /* Rab2,Rab1,Rab0 : V0 generator amplified ratio */
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#define FOLLOWER_CTRL_RAB1 0x02 /* Rab2,Rab1,Rab0 : V0 generator amplified ratio */
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#define FOLLOWER_CTRL_RAB2 0x04 /* Rab2,Rab1,Rab0 : V0 generator amplified ratio */
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#define FOLLOWER_CTRL_FON 0x08 /* Fon: switch follower circuit */
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#define ST7032_CONTRAST_MAX 0x3f /* limit range max value (0x00 - 0x3F) */
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#define ST7032_CONTRAST_MIN 0x00 /* limit range min value (0x00 - 0x3F) */
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#define ST7032_WRITE_DELAY_MS 30 /* see data sheet */
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#define ST7032_HOME_CLEAR_DELAY_MS 1200 /* see data sheet */
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/****************************************************************************
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* Public Types
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****************************************************************************/
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#ifdef __cplusplus
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#define EXTERN extern "C"
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extern "C"
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{
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#else
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#define EXTERN extern
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#endif
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/****************************************************************************
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* Name: st7032_leds_register
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*
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* Description:
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* Initialize the ST7032 device as a LEDS interface.
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*
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* Input Parameters:
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* spi - An instance of the SPI interface to use to communicate
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* with the ST7032.
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* devno - Device number to identify current display.
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*
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* Returned Value:
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* Zero (OK) on success; a negated errno value on failure.
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*
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****************************************************************************/
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struct i2c_master_s; /* Forward reference */
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int st7032_register(FAR const char *devpath, FAR struct i2c_master_s *i2c);
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#undef EXTERN
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#ifdef __cplusplus
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}
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#endif
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#endif /* CONFIG_I2C && CONFIG_ST7032 */
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#endif /* __INCLUDE_NUTTX_LEDS_ST7032_H */
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