|
|
@@ -0,0 +1,488 @@
|
|
|
+/*
|
|
|
+ * This file is part of the MicroPython project, http://micropython.org/
|
|
|
+ *
|
|
|
+ * The MIT License (MIT)
|
|
|
+ *
|
|
|
+ * Copyright (c) 2019 SummerGift <SummerGift@qq.com>
|
|
|
+ *
|
|
|
+ * Permission is hereby granted, free of charge, to any person obtaining a copy
|
|
|
+ * of this software and associated documentation files (the "Software"), to deal
|
|
|
+ * in the Software without restriction, including without limitation the rights
|
|
|
+ * to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
|
|
|
+ * copies of the Software, and to permit persons to whom the Software is
|
|
|
+ * furnished to do so, subject to the following conditions:
|
|
|
+ *
|
|
|
+ * The above copyright notice and this permission notice shall be included in
|
|
|
+ * all copies or substantial portions of the Software.
|
|
|
+ *
|
|
|
+ * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
|
|
|
+ * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
|
|
|
+ * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
|
|
|
+ * AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
|
|
|
+ * LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
|
|
|
+ * OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN
|
|
|
+ * THE SOFTWARE.
|
|
|
+ */
|
|
|
+
|
|
|
+#include <stdio.h>
|
|
|
+#include <string.h>
|
|
|
+
|
|
|
+#include "py/mphal.h"
|
|
|
+#include "py/runtime.h"
|
|
|
+
|
|
|
+#if MICROPY_PY_MACHINE_LCD
|
|
|
+
|
|
|
+#include "machine_lcd.h"
|
|
|
+#include <drv_lcd.h>
|
|
|
+
|
|
|
+#define LCD_INSTR (0)
|
|
|
+#define LCD_DATA (1)
|
|
|
+
|
|
|
+#define LCD_CHAR_BUF_W (16)
|
|
|
+#define LCD_CHAR_BUF_H (4)
|
|
|
+
|
|
|
+#define LCD_PIX_BUF_W (128)
|
|
|
+#define LCD_PIX_BUF_H (32)
|
|
|
+#define LCD_PIX_BUF_BYTE_SIZE (LCD_PIX_BUF_W * LCD_PIX_BUF_H / 8)
|
|
|
+
|
|
|
+typedef struct _machine_lcd_obj_t {
|
|
|
+ mp_obj_base_t base;
|
|
|
+
|
|
|
+ // hardware control for the LCD
|
|
|
+// const spi_t *spi;
|
|
|
+// const pin_obj_t *pin_cs1;
|
|
|
+// const pin_obj_t *pin_rst;
|
|
|
+// const pin_obj_t *pin_a0;
|
|
|
+// const pin_obj_t *pin_bl;
|
|
|
+
|
|
|
+ // character buffer for stdout-like output
|
|
|
+ char char_buffer[LCD_CHAR_BUF_W * LCD_CHAR_BUF_H];
|
|
|
+ int line;
|
|
|
+ int column;
|
|
|
+ int next_line;
|
|
|
+
|
|
|
+ // double buffering for pixel buffer
|
|
|
+ byte pix_buf[LCD_PIX_BUF_BYTE_SIZE];
|
|
|
+ byte pix_buf2[LCD_PIX_BUF_BYTE_SIZE];
|
|
|
+} machine_lcd_obj_t;
|
|
|
+
|
|
|
+STATIC void lcd_delay(void) {
|
|
|
+ __asm volatile ("nop\nnop");
|
|
|
+}
|
|
|
+
|
|
|
+STATIC void lcd_out(machine_lcd_obj_t *lcd, int instr_data, uint8_t i) {
|
|
|
+// lcd_delay();
|
|
|
+// mp_hal_pin_low(lcd->pin_cs1); // CS=0; enable
|
|
|
+// if (instr_data == LCD_INSTR) {
|
|
|
+// mp_hal_pin_low(lcd->pin_a0); // A0=0; select instr reg
|
|
|
+// } else {
|
|
|
+// mp_hal_pin_high(lcd->pin_a0); // A0=1; select data reg
|
|
|
+// }
|
|
|
+// lcd_delay();
|
|
|
+// HAL_SPI_Transmit(lcd->spi->spi, &i, 1, 1000);
|
|
|
+// lcd_delay();
|
|
|
+// mp_hal_pin_high(lcd->pin_cs1); // CS=1; disable
|
|
|
+}
|
|
|
+
|
|
|
+// write a string to the LCD at the current cursor location
|
|
|
+// output it straight away (doesn't use the pixel buffer)
|
|
|
+STATIC void lcd_write_strn(machine_lcd_obj_t *lcd, const char *str, unsigned int len) {
|
|
|
+ int redraw_min = lcd->line * LCD_CHAR_BUF_W + lcd->column;
|
|
|
+ int redraw_max = redraw_min;
|
|
|
+// for (; len > 0; len--, str++) {
|
|
|
+// // move to next line if needed
|
|
|
+// if (lcd->next_line) {
|
|
|
+// if (lcd->line + 1 < LCD_CHAR_BUF_H) {
|
|
|
+// lcd->line += 1;
|
|
|
+// } else {
|
|
|
+// lcd->line = LCD_CHAR_BUF_H - 1;
|
|
|
+// for (int i = 0; i < LCD_CHAR_BUF_W * (LCD_CHAR_BUF_H - 1); i++) {
|
|
|
+// lcd->char_buffer[i] = lcd->char_buffer[i + LCD_CHAR_BUF_W];
|
|
|
+// }
|
|
|
+// for (int i = 0; i < LCD_CHAR_BUF_W; i++) {
|
|
|
+// lcd->char_buffer[LCD_CHAR_BUF_W * (LCD_CHAR_BUF_H - 1) + i] = ' ';
|
|
|
+// }
|
|
|
+// redraw_min = 0;
|
|
|
+// redraw_max = LCD_CHAR_BUF_W * LCD_CHAR_BUF_H;
|
|
|
+// }
|
|
|
+// lcd->next_line = 0;
|
|
|
+// lcd->column = 0;
|
|
|
+// }
|
|
|
+// if (*str == '\n') {
|
|
|
+// lcd->next_line = 1;
|
|
|
+// } else if (*str == '\r') {
|
|
|
+// lcd->column = 0;
|
|
|
+// } else if (*str == '\b') {
|
|
|
+// if (lcd->column > 0) {
|
|
|
+// lcd->column--;
|
|
|
+// redraw_min = 0; // could optimise this to not redraw everything
|
|
|
+// }
|
|
|
+// } else if (lcd->column >= LCD_CHAR_BUF_W) {
|
|
|
+// lcd->next_line = 1;
|
|
|
+// str -= 1;
|
|
|
+// len += 1;
|
|
|
+// } else {
|
|
|
+// lcd->char_buffer[lcd->line * LCD_CHAR_BUF_W + lcd->column] = *str;
|
|
|
+// lcd->column += 1;
|
|
|
+// int max = lcd->line * LCD_CHAR_BUF_W + lcd->column;
|
|
|
+// if (max > redraw_max) {
|
|
|
+// redraw_max = max;
|
|
|
+// }
|
|
|
+// }
|
|
|
+// }
|
|
|
+
|
|
|
+// // we must draw upside down, because the LCD is upside down
|
|
|
+// for (int i = redraw_min; i < redraw_max; i++) {
|
|
|
+// uint page = i / LCD_CHAR_BUF_W;
|
|
|
+// uint offset = 8 * (LCD_CHAR_BUF_W - 1 - (i - (page * LCD_CHAR_BUF_W)));
|
|
|
+// lcd_out(lcd, LCD_INSTR, 0xb0 | page); // page address set
|
|
|
+// lcd_out(lcd, LCD_INSTR, 0x10 | ((offset >> 4) & 0x0f)); // column address set upper
|
|
|
+// lcd_out(lcd, LCD_INSTR, 0x00 | (offset & 0x0f)); // column address set lower
|
|
|
+// int chr = lcd->char_buffer[i];
|
|
|
+// if (chr < 32 || chr > 126) {
|
|
|
+// chr = 127;
|
|
|
+// }
|
|
|
+// const uint8_t *chr_data = &font_petme128_8x8[(chr - 32) * 8];
|
|
|
+// for (int j = 7; j >= 0; j--) {
|
|
|
+// lcd_out(lcd, LCD_DATA, chr_data[j]);
|
|
|
+// }
|
|
|
+// }
|
|
|
+}
|
|
|
+
|
|
|
+/// \classmethod \constructor(skin_position)
|
|
|
+///
|
|
|
+/// Construct an LCD object in the given skin position. `skin_position` can be 'X' or 'Y', and
|
|
|
+/// should match the position where the LCD pyskin is plugged in.
|
|
|
+STATIC mp_obj_t machine_lcd_make_new(const mp_obj_type_t *type, size_t n_args, size_t n_kw, const mp_obj_t *args) {
|
|
|
+ // check arguments
|
|
|
+ mp_arg_check_num(n_args, n_kw, 1, 1, false);
|
|
|
+
|
|
|
+ // get LCD position
|
|
|
+ const char *lcd_id = mp_obj_str_get_str(args[0]);
|
|
|
+
|
|
|
+ // create lcd object
|
|
|
+ machine_lcd_obj_t *lcd = m_new_obj(machine_lcd_obj_t);
|
|
|
+ lcd->base.type = &machine_lcd_type;
|
|
|
+
|
|
|
+// // configure pins
|
|
|
+// // TODO accept an SPI object and pin objects for full customisation
|
|
|
+// if ((lcd_id[0] | 0x20) == 'x' && lcd_id[1] == '\0') {
|
|
|
+// lcd->spi = &spi_obj[0];
|
|
|
+// lcd->pin_cs1 = machine_pin_X3;
|
|
|
+// lcd->pin_rst = machine_pin_X4;
|
|
|
+// lcd->pin_a0 = machine_pin_X5;
|
|
|
+// lcd->pin_bl = machine_pin_X12;
|
|
|
+// } else if ((lcd_id[0] | 0x20) == 'y' && lcd_id[1] == '\0') {
|
|
|
+// lcd->spi = &spi_obj[1];
|
|
|
+// lcd->pin_cs1 = machine_pin_Y3;
|
|
|
+// lcd->pin_rst = machine_pin_Y4;
|
|
|
+// lcd->pin_a0 = machine_pin_Y5;
|
|
|
+// lcd->pin_bl = machine_pin_Y12;
|
|
|
+// } else {
|
|
|
+// nlr_raise(mp_obj_new_exception_msg_varg(&mp_type_ValueError, "LCD(%s) doesn't exist", lcd_id));
|
|
|
+// }
|
|
|
+
|
|
|
+// // init the SPI bus
|
|
|
+// SPI_InitTypeDef *init = &lcd->spi->spi->Init;
|
|
|
+// init->Mode = SPI_MODE_MASTER;
|
|
|
+
|
|
|
+// // compute the baudrate prescaler from the desired baudrate
|
|
|
+// // select a prescaler that yields at most the desired baudrate
|
|
|
+// uint spi_clock;
|
|
|
+// if (lcd->spi->spi->Instance == SPI1) {
|
|
|
+// // SPI1 is on APB2
|
|
|
+// spi_clock = HAL_RCC_GetPCLK2Freq();
|
|
|
+// } else {
|
|
|
+// // SPI2 and SPI3 are on APB1
|
|
|
+// spi_clock = HAL_RCC_GetPCLK1Freq();
|
|
|
+// }
|
|
|
+// uint br_prescale = spi_clock / 16000000; // datasheet says LCD can run at 20MHz, but we go for 16MHz
|
|
|
+// if (br_prescale <= 2) { init->BaudRatePrescaler = SPI_BAUDRATEPRESCALER_2; }
|
|
|
+// else if (br_prescale <= 4) { init->BaudRatePrescaler = SPI_BAUDRATEPRESCALER_4; }
|
|
|
+// else if (br_prescale <= 8) { init->BaudRatePrescaler = SPI_BAUDRATEPRESCALER_8; }
|
|
|
+// else if (br_prescale <= 16) { init->BaudRatePrescaler = SPI_BAUDRATEPRESCALER_16; }
|
|
|
+// else if (br_prescale <= 32) { init->BaudRatePrescaler = SPI_BAUDRATEPRESCALER_32; }
|
|
|
+// else if (br_prescale <= 64) { init->BaudRatePrescaler = SPI_BAUDRATEPRESCALER_64; }
|
|
|
+// else if (br_prescale <= 128) { init->BaudRatePrescaler = SPI_BAUDRATEPRESCALER_128; }
|
|
|
+// else { init->BaudRatePrescaler = SPI_BAUDRATEPRESCALER_256; }
|
|
|
+
|
|
|
+// // data is sent bigendian, latches on rising clock
|
|
|
+// init->CLKPolarity = SPI_POLARITY_HIGH;
|
|
|
+// init->CLKPhase = SPI_PHASE_2EDGE;
|
|
|
+// init->Direction = SPI_DIRECTION_2LINES;
|
|
|
+// init->DataSize = SPI_DATASIZE_8BIT;
|
|
|
+// init->NSS = SPI_NSS_SOFT;
|
|
|
+// init->FirstBit = SPI_FIRSTBIT_MSB;
|
|
|
+// init->TIMode = SPI_TIMODE_DISABLED;
|
|
|
+// init->CRCCalculation = SPI_CRCCALCULATION_DISABLED;
|
|
|
+// init->CRCPolynomial = 0;
|
|
|
+
|
|
|
+// // init the SPI bus
|
|
|
+// spi_init(lcd->spi, false);
|
|
|
+
|
|
|
+// // set the pins to default values
|
|
|
+// mp_hal_pin_high(lcd->pin_cs1);
|
|
|
+// mp_hal_pin_high(lcd->pin_rst);
|
|
|
+// mp_hal_pin_high(lcd->pin_a0);
|
|
|
+// mp_hal_pin_low(lcd->pin_bl);
|
|
|
+
|
|
|
+// // init the pins to be push/pull outputs
|
|
|
+// mp_hal_pin_output(lcd->pin_cs1);
|
|
|
+// mp_hal_pin_output(lcd->pin_rst);
|
|
|
+// mp_hal_pin_output(lcd->pin_a0);
|
|
|
+// mp_hal_pin_output(lcd->pin_bl);
|
|
|
+
|
|
|
+// // init the LCD
|
|
|
+// mp_hal_delay_ms(1); // wait a bit
|
|
|
+// mp_hal_pin_low(lcd->pin_rst); // RST=0; reset
|
|
|
+// mp_hal_delay_ms(1); // wait for reset; 2us min
|
|
|
+// mp_hal_pin_high(lcd->pin_rst); // RST=1; enable
|
|
|
+// mp_hal_delay_ms(1); // wait for reset; 2us min
|
|
|
+// lcd_out(lcd, LCD_INSTR, 0xa0); // ADC select, normal
|
|
|
+// lcd_out(lcd, LCD_INSTR, 0xc0); // common output mode select, normal (this flips the display)
|
|
|
+// lcd_out(lcd, LCD_INSTR, 0xa2); // LCD bias set, 1/9 bias
|
|
|
+// lcd_out(lcd, LCD_INSTR, 0x2f); // power control set, 0b111=(booster on, vreg on, vfollow on)
|
|
|
+// lcd_out(lcd, LCD_INSTR, 0x21); // v0 voltage regulator internal resistor ratio set, 0b001=small
|
|
|
+// lcd_out(lcd, LCD_INSTR, 0x81); // electronic volume mode set
|
|
|
+// lcd_out(lcd, LCD_INSTR, 0x28); // electronic volume register set
|
|
|
+// lcd_out(lcd, LCD_INSTR, 0x40); // display start line set, 0
|
|
|
+// lcd_out(lcd, LCD_INSTR, 0xaf); // LCD display, on
|
|
|
+
|
|
|
+// // clear LCD RAM
|
|
|
+// for (int page = 0; page < 4; page++) {
|
|
|
+// lcd_out(lcd, LCD_INSTR, 0xb0 | page); // page address set
|
|
|
+// lcd_out(lcd, LCD_INSTR, 0x10); // column address set upper
|
|
|
+// lcd_out(lcd, LCD_INSTR, 0x00); // column address set lower
|
|
|
+// for (int i = 0; i < 128; i++) {
|
|
|
+// lcd_out(lcd, LCD_DATA, 0x00);
|
|
|
+// }
|
|
|
+// }
|
|
|
+
|
|
|
+// // clear local char buffer
|
|
|
+// memset(lcd->char_buffer, ' ', LCD_CHAR_BUF_H * LCD_CHAR_BUF_W);
|
|
|
+// lcd->line = 0;
|
|
|
+// lcd->column = 0;
|
|
|
+// lcd->next_line = 0;
|
|
|
+
|
|
|
+// // clear local pixel buffer
|
|
|
+// memset(lcd->pix_buf, 0, LCD_PIX_BUF_BYTE_SIZE);
|
|
|
+// memset(lcd->pix_buf2, 0, LCD_PIX_BUF_BYTE_SIZE);
|
|
|
+
|
|
|
+ return MP_OBJ_FROM_PTR(lcd);
|
|
|
+}
|
|
|
+
|
|
|
+/// \method command(instr_data, buf)
|
|
|
+///
|
|
|
+/// Send an arbitrary command to the LCD. Pass 0 for `instr_data` to send an
|
|
|
+/// instruction, otherwise pass 1 to send data. `buf` is a buffer with the
|
|
|
+/// instructions/data to send.
|
|
|
+STATIC mp_obj_t machine_lcd_command(mp_obj_t self_in, mp_obj_t instr_data_in, mp_obj_t val) {
|
|
|
+ machine_lcd_obj_t *self = MP_OBJ_TO_PTR(self_in);
|
|
|
+
|
|
|
+// // get whether instr or data
|
|
|
+// int instr_data = mp_obj_get_int(instr_data_in);
|
|
|
+
|
|
|
+// // get the buffer to send from
|
|
|
+// mp_buffer_info_t bufinfo;
|
|
|
+// uint8_t data[1];
|
|
|
+// machine_buf_get_for_send(val, &bufinfo, data);
|
|
|
+
|
|
|
+// // send the data
|
|
|
+// for (uint i = 0; i < bufinfo.len; i++) {
|
|
|
+// lcd_out(self, instr_data, ((byte*)bufinfo.buf)[i]);
|
|
|
+// }
|
|
|
+
|
|
|
+ return mp_const_none;
|
|
|
+}
|
|
|
+STATIC MP_DEFINE_CONST_FUN_OBJ_3(machine_lcd_command_obj, machine_lcd_command);
|
|
|
+
|
|
|
+/// \method contrast(value)
|
|
|
+///
|
|
|
+/// Set the contrast of the LCD. Valid values are between 0 and 47.
|
|
|
+//STATIC mp_obj_t machine_lcd_contrast(mp_obj_t self_in, mp_obj_t contrast_in) {
|
|
|
+// machine_lcd_obj_t *self = MP_OBJ_TO_PTR(self_in);
|
|
|
+// int contrast = mp_obj_get_int(contrast_in);
|
|
|
+// if (contrast < 0) {
|
|
|
+// contrast = 0;
|
|
|
+// } else if (contrast > 0x2f) {
|
|
|
+// contrast = 0x2f;
|
|
|
+// }
|
|
|
+// lcd_out(self, LCD_INSTR, 0x81); // electronic volume mode set
|
|
|
+// lcd_out(self, LCD_INSTR, contrast); // electronic volume register set
|
|
|
+// return mp_const_none;
|
|
|
+//}
|
|
|
+//STATIC MP_DEFINE_CONST_FUN_OBJ_2(machine_lcd_contrast_obj, machine_lcd_contrast);
|
|
|
+
|
|
|
+/// \method light(value)
|
|
|
+///
|
|
|
+/// Turn the backlight on/off. True or 1 turns it on, False or 0 turns it off.
|
|
|
+STATIC mp_obj_t machine_lcd_light(mp_obj_t self_in, mp_obj_t value) {
|
|
|
+ machine_lcd_obj_t *self = MP_OBJ_TO_PTR(self_in);
|
|
|
+ if (mp_obj_is_true(value)) {
|
|
|
+ lcd_display_on(); // set pin high to turn backlight on
|
|
|
+ } else {
|
|
|
+ lcd_display_off();// set pin low to turn backlight off
|
|
|
+ }
|
|
|
+ return mp_const_none;
|
|
|
+}
|
|
|
+STATIC MP_DEFINE_CONST_FUN_OBJ_2(machine_lcd_light_obj, machine_lcd_light);
|
|
|
+
|
|
|
+/// \method write(str)
|
|
|
+///
|
|
|
+/// Write the string `str` to the screen. It will appear immediately.
|
|
|
+STATIC mp_obj_t machine_lcd_write(mp_obj_t self_in, mp_obj_t str) {
|
|
|
+ machine_lcd_obj_t *self = MP_OBJ_TO_PTR(self_in);
|
|
|
+ size_t len;
|
|
|
+ const char *data = mp_obj_str_get_data(str, &len);
|
|
|
+ lcd_write_strn(self, data, len);
|
|
|
+ return mp_const_none;
|
|
|
+}
|
|
|
+STATIC MP_DEFINE_CONST_FUN_OBJ_2(machine_lcd_write_obj, machine_lcd_write);
|
|
|
+
|
|
|
+/// \method fill(colour)
|
|
|
+///
|
|
|
+/// Fill the screen with the given colour (0 or 1 for white or black).
|
|
|
+///
|
|
|
+/// This method writes to the hidden buffer. Use `show()` to show the buffer.
|
|
|
+STATIC mp_obj_t machine_lcd_fill(mp_obj_t self_in, mp_obj_t col_in) {
|
|
|
+ machine_lcd_obj_t *self = MP_OBJ_TO_PTR(self_in);
|
|
|
+ int col = mp_obj_get_int(col_in);
|
|
|
+ if (col) {
|
|
|
+ col = 0xff;
|
|
|
+ }
|
|
|
+ memset(self->pix_buf, col, LCD_PIX_BUF_BYTE_SIZE);
|
|
|
+ memset(self->pix_buf2, col, LCD_PIX_BUF_BYTE_SIZE);
|
|
|
+ return mp_const_none;
|
|
|
+}
|
|
|
+STATIC MP_DEFINE_CONST_FUN_OBJ_2(machine_lcd_fill_obj, machine_lcd_fill);
|
|
|
+
|
|
|
+/// \method get(x, y)
|
|
|
+///
|
|
|
+/// Get the pixel at the position `(x, y)`. Returns 0 or 1.
|
|
|
+///
|
|
|
+/// This method reads from the visible buffer.
|
|
|
+STATIC mp_obj_t machine_lcd_get(mp_obj_t self_in, mp_obj_t x_in, mp_obj_t y_in) {
|
|
|
+ machine_lcd_obj_t *self = MP_OBJ_TO_PTR(self_in);
|
|
|
+ int x = mp_obj_get_int(x_in);
|
|
|
+ int y = mp_obj_get_int(y_in);
|
|
|
+ if (0 <= x && x <= 127 && 0 <= y && y <= 31) {
|
|
|
+ uint byte_pos = x + 128 * ((uint)y >> 3);
|
|
|
+ if (self->pix_buf[byte_pos] & (1 << (y & 7))) {
|
|
|
+ return mp_obj_new_int(1);
|
|
|
+ }
|
|
|
+ }
|
|
|
+ return mp_obj_new_int(0);
|
|
|
+}
|
|
|
+STATIC MP_DEFINE_CONST_FUN_OBJ_3(machine_lcd_get_obj, machine_lcd_get);
|
|
|
+
|
|
|
+/// \method pixel(x, y, colour)
|
|
|
+///
|
|
|
+/// Set the pixel at `(x, y)` to the given colour (0 or 1).
|
|
|
+///
|
|
|
+/// This method writes to the hidden buffer. Use `show()` to show the buffer.
|
|
|
+STATIC mp_obj_t machine_lcd_pixel(size_t n_args, const mp_obj_t *args) {
|
|
|
+ machine_lcd_obj_t *self = MP_OBJ_TO_PTR(args[0]);
|
|
|
+ int x = mp_obj_get_int(args[1]);
|
|
|
+ int y = mp_obj_get_int(args[2]);
|
|
|
+ if (0 <= x && x <= 127 && 0 <= y && y <= 31) {
|
|
|
+ uint byte_pos = x + 128 * ((uint)y >> 3);
|
|
|
+ if (mp_obj_get_int(args[3]) == 0) {
|
|
|
+ self->pix_buf2[byte_pos] &= ~(1 << (y & 7));
|
|
|
+ } else {
|
|
|
+ self->pix_buf2[byte_pos] |= 1 << (y & 7);
|
|
|
+ }
|
|
|
+ }
|
|
|
+ return mp_const_none;
|
|
|
+}
|
|
|
+STATIC MP_DEFINE_CONST_FUN_OBJ_VAR_BETWEEN(machine_lcd_pixel_obj, 4, 4, machine_lcd_pixel);
|
|
|
+
|
|
|
+/// \method text(str, x, y, colour)
|
|
|
+///
|
|
|
+/// Draw the given text to the position `(x, y)` using the given colour (0 or 1).
|
|
|
+///
|
|
|
+/// This method writes to the hidden buffer. Use `show()` to show the buffer.
|
|
|
+STATIC mp_obj_t machine_lcd_text(size_t n_args, const mp_obj_t *args) {
|
|
|
+ // extract arguments
|
|
|
+// machine_lcd_obj_t *self = MP_OBJ_TO_PTR(args[0]);
|
|
|
+// size_t len;
|
|
|
+// const char *data = mp_obj_str_get_data(args[1], &len);
|
|
|
+// int x0 = mp_obj_get_int(args[2]);
|
|
|
+// int y0 = mp_obj_get_int(args[3]);
|
|
|
+// int col = mp_obj_get_int(args[4]);
|
|
|
+
|
|
|
+// // loop over chars
|
|
|
+// for (const char *top = data + len; data < top; data++) {
|
|
|
+// // get char and make sure its in range of font
|
|
|
+// uint chr = *(byte*)data;
|
|
|
+// if (chr < 32 || chr > 127) {
|
|
|
+// chr = 127;
|
|
|
+// }
|
|
|
+// // get char data
|
|
|
+// const uint8_t *chr_data = &font_petme128_8x8[(chr - 32) * 8];
|
|
|
+// // loop over char data
|
|
|
+// for (uint j = 0; j < 8; j++, x0++) {
|
|
|
+// if (0 <= x0 && x0 < LCD_PIX_BUF_W) { // clip x
|
|
|
+// uint vline_data = chr_data[j]; // each byte of char data is a vertical column of 8 pixels, LSB at top
|
|
|
+// for (int y = y0; vline_data; vline_data >>= 1, y++) { // scan over vertical column
|
|
|
+// if (vline_data & 1) { // only draw if pixel set
|
|
|
+// if (0 <= y && y < LCD_PIX_BUF_H) { // clip y
|
|
|
+// uint byte_pos = x0 + LCD_PIX_BUF_W * ((uint)y >> 3);
|
|
|
+// if (col == 0) {
|
|
|
+// // clear pixel
|
|
|
+// self->pix_buf2[byte_pos] &= ~(1 << (y & 7));
|
|
|
+// } else {
|
|
|
+// // set pixel
|
|
|
+// self->pix_buf2[byte_pos] |= 1 << (y & 7);
|
|
|
+// }
|
|
|
+// }
|
|
|
+// }
|
|
|
+// }
|
|
|
+// }
|
|
|
+// }
|
|
|
+// }
|
|
|
+
|
|
|
+ return mp_const_none;
|
|
|
+}
|
|
|
+STATIC MP_DEFINE_CONST_FUN_OBJ_VAR_BETWEEN(machine_lcd_text_obj, 5, 5, machine_lcd_text);
|
|
|
+
|
|
|
+/// \method show()
|
|
|
+///
|
|
|
+/// Show the hidden buffer on the screen.
|
|
|
+STATIC mp_obj_t machine_lcd_show(mp_obj_t self_in) {
|
|
|
+ machine_lcd_obj_t *self = MP_OBJ_TO_PTR(self_in);
|
|
|
+ memcpy(self->pix_buf, self->pix_buf2, LCD_PIX_BUF_BYTE_SIZE);
|
|
|
+ for (uint page = 0; page < 4; page++) {
|
|
|
+ lcd_out(self, LCD_INSTR, 0xb0 | page); // page address set
|
|
|
+ lcd_out(self, LCD_INSTR, 0x10); // column address set upper; 0
|
|
|
+ lcd_out(self, LCD_INSTR, 0x00); // column address set lower; 0
|
|
|
+ for (uint i = 0; i < 128; i++) {
|
|
|
+ lcd_out(self, LCD_DATA, self->pix_buf[128 * page + 127 - i]);
|
|
|
+ }
|
|
|
+ }
|
|
|
+ return mp_const_none;
|
|
|
+}
|
|
|
+STATIC MP_DEFINE_CONST_FUN_OBJ_1(machine_lcd_show_obj, machine_lcd_show);
|
|
|
+
|
|
|
+STATIC const mp_rom_map_elem_t machine_lcd_locals_dict_table[] = {
|
|
|
+ // instance methods
|
|
|
+ { MP_ROM_QSTR(MP_QSTR_command), MP_ROM_PTR(&machine_lcd_command_obj) },
|
|
|
+// { MP_ROM_QSTR(MP_QSTR_contrast), MP_ROM_PTR(&machine_lcd_contrast_obj) },
|
|
|
+ { MP_ROM_QSTR(MP_QSTR_light), MP_ROM_PTR(&machine_lcd_light_obj) },
|
|
|
+ { MP_ROM_QSTR(MP_QSTR_write), MP_ROM_PTR(&machine_lcd_write_obj) },
|
|
|
+ { MP_ROM_QSTR(MP_QSTR_fill), MP_ROM_PTR(&machine_lcd_fill_obj) },
|
|
|
+ { MP_ROM_QSTR(MP_QSTR_get), MP_ROM_PTR(&machine_lcd_get_obj) },
|
|
|
+ { MP_ROM_QSTR(MP_QSTR_pixel), MP_ROM_PTR(&machine_lcd_pixel_obj) },
|
|
|
+ { MP_ROM_QSTR(MP_QSTR_text), MP_ROM_PTR(&machine_lcd_text_obj) },
|
|
|
+ { MP_ROM_QSTR(MP_QSTR_show), MP_ROM_PTR(&machine_lcd_show_obj) },
|
|
|
+};
|
|
|
+
|
|
|
+STATIC MP_DEFINE_CONST_DICT(machine_lcd_locals_dict, machine_lcd_locals_dict_table);
|
|
|
+
|
|
|
+const mp_obj_type_t machine_lcd_type = {
|
|
|
+ { &mp_type_type },
|
|
|
+ .name = MP_QSTR_LCD,
|
|
|
+ .make_new = machine_lcd_make_new,
|
|
|
+ .locals_dict = (mp_obj_dict_t*)&machine_lcd_locals_dict,
|
|
|
+};
|
|
|
+
|
|
|
+#endif // MICROPY_PY_MACHINE_LCD
|