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145 lines
3.7 KiB
145 lines
3.7 KiB
/*
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* This file is part of the Trezor project, https://trezor.io/
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*
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* Copyright (c) SatoshiLabs
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*
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* This program is free software: you can redistribute it and/or modify
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* it under the terms of the GNU General Public License as published by
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* the Free Software Foundation, either version 3 of the License, or
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* (at your option) any later version.
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*
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* This program is distributed in the hope that it will be useful,
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* but WITHOUT ANY WARRANTY; without even the implied warranty of
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* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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* GNU General Public License for more details.
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*
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* You should have received a copy of the GNU General Public License
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* along with this program. If not, see <http://www.gnu.org/licenses/>.
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*/
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#include <stdint.h>
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#include <string.h>
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#include TREZOR_BOARD
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#include STM32_HAL_H
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#include "display_internal.h"
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#include "ili9341_spi.h"
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#include "xdisplay.h"
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#if (DISPLAY_RESX != 240) || (DISPLAY_RESY != 320)
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#error "Incompatible display resolution"
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#endif
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// Display driver context.
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typedef struct {
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// Pointer to the frame buffer
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uint16_t *framebuf;
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// Current display orientation (0, 90, 180, 270)
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int orientation_angle;
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// Current backlight level ranging from 0 to 255
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int backlight_level;
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} display_driver_t;
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// Display driver instance
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static display_driver_t g_display_driver;
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void display_init(void) {
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display_driver_t *drv = &g_display_driver;
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memset(drv, 0, sizeof(display_driver_t));
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drv->framebuf = (uint16_t *)FRAME_BUFFER_ADDR;
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// Initialize LTDC controller
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BSP_LCD_Init();
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// Initialize external display controller
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ili9341_init();
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}
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void display_reinit(void) {
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display_driver_t *drv = &g_display_driver;
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memset(drv, 0, sizeof(display_driver_t));
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drv->framebuf = (uint16_t *)FRAME_BUFFER_ADDR;
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}
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void display_finish_actions(void) {
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// Not used and intentionally left empty
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}
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int display_set_backlight(int level) {
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display_driver_t *drv = &g_display_driver;
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// Just emulation, not doing anything
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drv->backlight_level = level;
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return level;
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}
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int display_get_backlight(void) {
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display_driver_t *drv = &g_display_driver;
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return drv->backlight_level;
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}
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int display_set_orientation(int angle) {
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display_driver_t *drv = &g_display_driver;
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if (angle == 0 || angle == 90 || angle == 180 || angle == 270) {
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// Just emulation, not doing anything
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drv->orientation_angle = angle;
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}
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return drv->orientation_angle;
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}
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int display_get_orientation(void) {
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display_driver_t *drv = &g_display_driver;
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return drv->orientation_angle;
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}
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display_fb_info_t display_get_frame_buffer(void) {
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display_driver_t *drv = &g_display_driver;
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display_fb_info_t fb = {
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.ptr = (void *)drv->framebuf,
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.stride = DISPLAY_RESX * sizeof(uint16_t),
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};
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return fb;
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}
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void display_refresh(void) {
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// Do nothing as using just a single frame buffer
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}
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void display_set_compatible_settings() {}
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void display_fill(const gl_bitblt_t *bb) {
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display_driver_t *drv = &g_display_driver;
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gl_bitblt_t bb_new = *bb;
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bb_new.dst_row = drv->framebuf + (DISPLAY_RESX * bb_new.dst_y);
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bb_new.dst_stride = DISPLAY_RESX * sizeof(uint16_t);
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gl_rgb565_fill(&bb_new);
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}
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void display_copy_rgb565(const gl_bitblt_t *bb) {
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display_driver_t *drv = &g_display_driver;
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gl_bitblt_t bb_new = *bb;
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bb_new.dst_row = drv->framebuf + (DISPLAY_RESX * bb_new.dst_y);
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bb_new.dst_stride = DISPLAY_RESX * sizeof(uint16_t);
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gl_rgb565_copy_rgb565(&bb_new);
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}
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void display_copy_mono4(const gl_bitblt_t *bb) {
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display_driver_t *drv = &g_display_driver;
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gl_bitblt_t bb_new = *bb;
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bb_new.dst_row = drv->framebuf + (DISPLAY_RESX * bb_new.dst_y);
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bb_new.dst_stride = DISPLAY_RESX * sizeof(uint16_t);
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gl_rgb565_copy_mono4(&bb_new);
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}
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