120 lines
3.6 KiB
C
120 lines
3.6 KiB
C
/*
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* This file is part of the Micro Python project, http://micropython.org/
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*
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* The MIT License (MIT)
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*
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* Copyright (c) 2017 Glenn Ruben Bakke
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*
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* Permission is hereby granted, free of charge, to any person obtaining a copy
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* of this software and associated documentation files (the "Software"), to deal
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* in the Software without restriction, including without limitation the rights
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* to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
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* copies of the Software, and to permit persons to whom the Software is
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* furnished to do so, subject to the following conditions:
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*
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* The above copyright notice and this permission notice shall be included in
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* all copies or substantial portions of the Software.
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*
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* THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
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* IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
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* FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
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* AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
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* LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
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* OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN
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* THE SOFTWARE.
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*/
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#include <stdbool.h>
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#include "py/mphal.h"
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#include "lcd_ls0xxb7dxxx_driver.h"
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#include "hal_spi.h"
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#include "hal_time.h"
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#include "framebuffer.h"
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#if MICROPY_PY_DISPLAY_LCD_LS0XXB7DXXX
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static pin_obj_t * mp_cs_pin;
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static pin_obj_t * mp_disp_pin;
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static pin_obj_t * mp_extcomin_pin;
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static pin_obj_t * mp_extmode_pin;
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static pin_obj_t * mp_power_control_pin;
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static pin_obj_t * mp_power_charge_pin;
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static NRF_SPI_Type * mp_instance;
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static void raw_write(uint8_t value)
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{
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hal_spi_master_tx_rx(mp_instance, 1, &value, NULL);
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}
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void driver_ls0xxb7dxxx_init(NRF_SPI_Type * p_instance,
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pin_obj_t * p_cs_pin,
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pin_obj_t * p_disp_pin,
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pin_obj_t * p_ext_com_in_pin,
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pin_obj_t * p_ext_mode_pin,
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pin_obj_t * p_power_control_pin,
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pin_obj_t * p_power_charge_pin) {
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mp_instance = p_instance;
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mp_cs_pin = p_cs_pin;
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mp_disp_pin = p_disp_pin;
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mp_extcomin_pin = p_ext_com_in_pin;
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mp_extmode_pin = p_ext_mode_pin;
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mp_power_control_pin = p_power_control_pin;
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mp_power_charge_pin = p_power_charge_pin;
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mp_hal_pin_high(mp_extcomin_pin);
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mp_hal_pin_low(mp_disp_pin);
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mp_hal_pin_low(mp_cs_pin);
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mp_hal_pin_low(mp_extmode_pin);
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mp_hal_pin_low(mp_power_charge_pin);
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mp_hal_pin_low(mp_power_control_pin);
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// power on display
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mp_hal_pin_high(mp_power_charge_pin);
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mp_hal_pin_high(mp_power_control_pin);
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// display on
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mp_hal_pin_high(mp_disp_pin);
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mp_hal_pin_low(mp_extcomin_pin);
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}
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void driver_ls0xxb7dxxx_clear(uint16_t color)
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{
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mp_hal_pin_high(mp_cs_pin);
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raw_write(0x04); // clear command
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raw_write(0x00);
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mp_hal_pin_low(mp_cs_pin);
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}
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void driver_ls0xxb7dxxx_update_line(uint16_t line, framebuffer_byte_t * p_bytes, uint16_t len) {
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// update single line - 0x01 <line_num> <50bytes data> 0x00 0x00
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// update multi line - 0x01 <line_num> <50bytes data> 0x00 [<line_num> <50bytes data> 0x00] 0x00
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mp_hal_pin_high(mp_cs_pin);
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mp_hal_delay_us(3);
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raw_write(0x01);
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raw_write(line);
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for (uint8_t i = 0; i < 50; i++)
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{
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uint8_t byte = (uint8_t)((uint8_t *)p_bytes)[i];
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raw_write(~byte);
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}
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raw_write(0x00);
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raw_write(0x00);
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mp_hal_delay_us(1);
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mp_hal_pin_low(mp_cs_pin);
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}
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#endif
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