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195 lines
5.0 KiB
195 lines
5.0 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 <string.h>
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#include <xdisplay.h>
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#include "display_fb.h"
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#include "display_io.h"
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#include "display_panel.h"
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#include "backlight_pwm.h"
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#include "supervise.h"
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#ifndef BOARDLOADER
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#include "bg_copy.h"
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#endif
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#if (DISPLAY_RESX != 240) || (DISPLAY_RESY != 240)
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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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// Current display orientation (0, 90, 180, 270)
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int orientation_angle;
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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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display_io_init_gpio();
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display_io_init_fmc();
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display_panel_init();
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display_panel_set_little_endian();
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backlight_pwm_init();
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#ifdef XFRAMEBUFFER
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display_io_init_te_interrupt();
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#endif
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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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// Reinitialize FMC to set correct timing
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// We have to do this in reinit because boardloader is fixed.
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display_io_init_fmc();
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// Important for model T as this is not set in boardloader
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display_panel_set_little_endian();
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display_panel_init_gamma();
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backlight_pwm_reinit();
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#ifdef XFRAMEBUFFER
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display_io_init_te_interrupt();
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#endif
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}
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void display_finish_actions(void) {
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// !@# disable interrupt
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// !@# wait for dma ops
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}
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int display_set_backlight(int level) {
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#ifdef XFRAMEBUFFER
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#ifndef BOARDLOADER
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// wait for DMA transfer to finish before changing backlight
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// so that we know that panel has current data
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if (backlight_pwm_get() != level && !is_mode_handler()) {
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bg_copy_wait();
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}
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#endif
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#endif
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return backlight_pwm_set(level);
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}
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int display_get_backlight(void) { return backlight_pwm_get(); }
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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 != drv->orientation_angle) {
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if (angle == 0 || angle == 90 || angle == 180 || angle == 270) {
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drv->orientation_angle = angle;
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#ifdef XFRAMEBUFFER
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memset(physical_frame_buffer_0, 0, sizeof(physical_frame_buffer_0));
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memset(physical_frame_buffer_1, 0, sizeof(physical_frame_buffer_1));
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#endif
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display_panel_set_window(0, 0, DISPLAY_RESX - 1, DISPLAY_RESY - 1);
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for (uint32_t i = 0; i < DISPLAY_RESX * DISPLAY_RESY; i++) {
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// 2 bytes per pixel because we're using RGB 5-6-5 format
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ISSUE_PIXEL_DATA(0x0000);
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}
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display_panel_rotate(angle);
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}
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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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#ifndef XFRAMEBUFFER
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void display_refresh(void) {
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// if the framebuffer is not used the implementation is empty
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}
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#endif
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void display_wait_for_sync(void) {
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#ifdef DISPLAY_TE_PIN
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uint32_t id = display_panel_identify();
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if (id && (id != DISPLAY_ID_GC9307)) {
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// synchronize with the panel synchronization signal
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// in order to avoid visual tearing effects
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while (GPIO_PIN_SET == HAL_GPIO_ReadPin(DISPLAY_TE_PORT, DISPLAY_TE_PIN))
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;
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while (GPIO_PIN_RESET == HAL_GPIO_ReadPin(DISPLAY_TE_PORT, DISPLAY_TE_PIN))
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;
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}
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#endif
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}
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const char* display_save(const char* prefix) { return NULL; }
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void display_clear_save(void) {}
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void display_set_compatible_settings(void) { display_panel_set_big_endian(); }
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static inline void set_window(const dma2d_params_t* dp) {
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display_panel_set_window(dp->dst_x, dp->dst_y, dp->dst_x + dp->width - 1,
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dp->dst_y + dp->height + 1);
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}
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// Fills a rectangle with a specified color
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void display_fill(const dma2d_params_t* dp) {
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set_window(dp);
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uint16_t height = dp->height;
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while (height-- > 0) {
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for (int x = 0; x < dp->width; x++) {
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ISSUE_PIXEL_DATA(dp->src_fg);
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}
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}
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}
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// Copies an RGB565 bitmap to specified rectangle
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void display_copy_rgb565(const dma2d_params_t* dp) {
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set_window(dp);
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uint16_t* src_ptr = (uint16_t*)dp->src_row + dp->src_x;
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uint16_t height = dp->height;
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while (height-- > 0) {
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for (int x = 0; x < dp->width; x++) {
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ISSUE_PIXEL_DATA(src_ptr[x]);
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}
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src_ptr += dp->src_stride / sizeof(*src_ptr);
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}
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}
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// Copies a MONO4 bitmap to specified rectangle
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// void display_copy_mono4(gdc_dma2d_t *dp);
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