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473 lines
15 KiB
473 lines
15 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 <stdbool.h>
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#include <stdint.h>
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#include TREZOR_BOARD
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#include "backlight_pwm.h"
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#include "display_interface.h"
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#include "memzero.h"
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#include "st7789v.h"
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#include STM32_HAL_H
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#ifdef TREZOR_MODEL_T
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#include "displays/panels/154a.h"
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#include "displays/panels/lx154a2411.h"
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#include "displays/panels/lx154a2422.h"
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#include "displays/panels/tf15411a.h"
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#endif
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// using const volatile instead of #define results in binaries that change
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// only in 1-byte when the flag changes.
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// using #define leads compiler to over-optimize the code leading to bigger
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// differencies in the resulting binaries.
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const volatile uint8_t DISPLAY_ST7789V_INVERT_COLORS = 1;
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// FSMC/FMC Bank 1 - NOR/PSRAM 1
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#define DISPLAY_MEMORY_BASE 0x60000000
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#define DISPLAY_MEMORY_PIN 16
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#ifdef USE_DISP_I8080_16BIT_DW
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#define DISPLAY_ADDR_SHIFT 2
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#elif USE_DISP_I8080_8BIT_DW
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#define DISPLAY_ADDR_SHIFT 1
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#endif
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__IO DISP_MEM_TYPE *const DISPLAY_CMD_ADDRESS =
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(__IO DISP_MEM_TYPE *const)((uint32_t)DISPLAY_MEMORY_BASE);
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__IO DISP_MEM_TYPE *const DISPLAY_DATA_ADDRESS =
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(__IO DISP_MEM_TYPE *const)((uint32_t)DISPLAY_MEMORY_BASE |
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(DISPLAY_ADDR_SHIFT << DISPLAY_MEMORY_PIN));
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// section "9.1.3 RDDID (04h): Read Display ID"
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// of ST7789V datasheet
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#define DISPLAY_ID_ST7789V 0x858552U
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// section "6.2.1. Read display identification information (04h)"
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// of GC9307 datasheet
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#define DISPLAY_ID_GC9307 0x009307U
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// section "8.3.23 Read ID4 (D3h)"
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// of ILI9341V datasheet
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#define DISPLAY_ID_ILI9341V 0x009341U
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static int DISPLAY_ORIENTATION = -1;
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void display_pixeldata(uint16_t c) { PIXELDATA(c); }
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static uint32_t read_display_id(uint8_t command) {
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volatile uint8_t c = 0;
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uint32_t id = 0;
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CMD(command);
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c = *DISPLAY_DATA_ADDRESS; // first returned value is a dummy value and
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// should be discarded
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c = *DISPLAY_DATA_ADDRESS;
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id |= (c << 16);
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c = *DISPLAY_DATA_ADDRESS;
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id |= (c << 8);
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c = *DISPLAY_DATA_ADDRESS;
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id |= c;
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return id;
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}
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static uint32_t display_identify(void) {
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static uint32_t id = 0x000000U;
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static char id_set = 0;
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if (id_set) return id; // return if id has been already set
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id = read_display_id(0x04); // RDDID: Read Display ID
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// the default RDDID for ILI9341 should be 0x8000.
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// some display modules return 0x0.
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// the ILI9341 has an extra id, let's check it here.
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if ((id != DISPLAY_ID_ST7789V) &&
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(id != DISPLAY_ID_GC9307)) { // if not ST7789V and not GC9307
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uint32_t id4 = read_display_id(0xD3); // Read ID4
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if (id4 == DISPLAY_ID_ILI9341V) { // definitely found a ILI9341
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id = id4;
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}
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}
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id_set = 1;
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return id;
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}
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bool display_is_inverted() {
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bool inv_on = false;
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uint32_t id = display_identify();
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if (id == DISPLAY_ID_ST7789V) {
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volatile uint8_t c = 0;
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CMD(0x09); // read display status
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c = *DISPLAY_DATA_ADDRESS; // don't care
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c = *DISPLAY_DATA_ADDRESS; // don't care
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c = *DISPLAY_DATA_ADDRESS; // don't care
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c = *DISPLAY_DATA_ADDRESS;
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if (c & 0x20) {
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inv_on = true;
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}
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c = *DISPLAY_DATA_ADDRESS; // don't care
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}
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return inv_on;
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}
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void display_reset_state() {}
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static void __attribute__((unused)) display_sleep(void) {
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uint32_t id = display_identify();
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if ((id == DISPLAY_ID_ILI9341V) || (id == DISPLAY_ID_GC9307) ||
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(id == DISPLAY_ID_ST7789V)) {
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CMD(0x28); // DISPOFF: Display Off
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CMD(0x10); // SLPIN: Sleep in
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HAL_Delay(5); // need to wait 5 milliseconds after "sleep in" before
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// sending any new commands
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}
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}
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static void display_unsleep(void) {
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uint32_t id = display_identify();
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if ((id == DISPLAY_ID_ILI9341V) || (id == DISPLAY_ID_GC9307) ||
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(id == DISPLAY_ID_ST7789V)) {
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CMD(0x11); // SLPOUT: Sleep Out
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HAL_Delay(5); // need to wait 5 milliseconds after "sleep out" before
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// sending any new commands
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CMD(0x29); // DISPON: Display On
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}
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}
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static struct { uint16_t x, y; } BUFFER_OFFSET;
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void display_set_window(uint16_t x0, uint16_t y0, uint16_t x1, uint16_t y1) {
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x0 += BUFFER_OFFSET.x;
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x1 += BUFFER_OFFSET.x;
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y0 += BUFFER_OFFSET.y;
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y1 += BUFFER_OFFSET.y;
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uint32_t id = display_identify();
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if ((id == DISPLAY_ID_ILI9341V) || (id == DISPLAY_ID_GC9307) ||
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(id == DISPLAY_ID_ST7789V)) {
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CMD(0x2A);
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DATA(x0 >> 8);
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DATA(x0 & 0xFF);
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DATA(x1 >> 8);
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DATA(x1 & 0xFF); // column addr set
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CMD(0x2B);
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DATA(y0 >> 8);
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DATA(y0 & 0xFF);
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DATA(y1 >> 8);
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DATA(y1 & 0xFF); // row addr set
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CMD(0x2C);
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}
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}
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int display_orientation(int degrees) {
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if (degrees != DISPLAY_ORIENTATION) {
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if (degrees == 0 || degrees == 90 || degrees == 180 || degrees == 270) {
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DISPLAY_ORIENTATION = degrees;
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display_set_window(0, 0, MAX_DISPLAY_RESX - 1, MAX_DISPLAY_RESY - 1);
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for (uint32_t i = 0; i < MAX_DISPLAY_RESX * MAX_DISPLAY_RESY; i++) {
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// 2 bytes per pixel because we're using RGB 5-6-5 format
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PIXELDATA(0x0000);
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}
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uint16_t shift = 0;
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char BX = 0, BY = 0;
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uint32_t id = display_identify();
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if ((id == DISPLAY_ID_ILI9341V) || (id == DISPLAY_ID_GC9307) ||
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(id == DISPLAY_ID_ST7789V)) {
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#define RGB (1 << 3)
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#define ML (1 << 4) // vertical refresh order
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#define MH (1 << 2) // horizontal refresh order
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#define MV (1 << 5)
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#define MX (1 << 6)
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#define MY (1 << 7)
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// MADCTL: Memory Data Access Control - reference:
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// section 9.3 in the ILI9341 manual
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// section 6.2.18 in the GC9307 manual
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// section 8.12 in the ST7789V manual
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uint8_t display_command_parameter = 0;
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switch (degrees) {
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case 0:
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display_command_parameter = 0;
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BY = (id == DISPLAY_ID_GC9307);
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break;
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case 90:
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display_command_parameter = MV | MX | MH | ML;
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BX = (id != DISPLAY_ID_GC9307);
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shift = 1;
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break;
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case 180:
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display_command_parameter = MX | MY | MH | ML;
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BY = (id == DISPLAY_ID_GC9307);
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shift = 1;
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break;
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case 270:
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display_command_parameter = MV | MY;
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BX = (id != DISPLAY_ID_GC9307);
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break;
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}
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if (id == DISPLAY_ID_GC9307) {
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display_command_parameter ^= RGB | MY; // XOR RGB and MY settings
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}
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CMD(0x36);
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DATA(display_command_parameter);
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if (shift) {
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// GATECTRL: Gate Control; NL = 240 gate lines, first scan line is
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// gate 80.; gate scan direction 319 -> 0
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CMD(0xE4);
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DATA(0x1D);
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DATA(0x00);
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DATA(0x11);
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} else {
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// GATECTRL: Gate Control; NL = 240 gate lines, first scan line is
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// gate 80.; gate scan direction 319 -> 0
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CMD(0xE4);
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DATA(0x1D);
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DATA(0x0A);
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DATA(0x11);
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}
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// reset the column and page extents
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display_set_window(0, 0, DISPLAY_RESX - 1, DISPLAY_RESY - 1);
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}
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BUFFER_OFFSET.x = BX ? (MAX_DISPLAY_RESY - DISPLAY_RESY) : 0;
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BUFFER_OFFSET.y = BY ? (MAX_DISPLAY_RESY - DISPLAY_RESY) : 0;
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}
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}
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return DISPLAY_ORIENTATION;
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}
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int display_get_orientation(void) { return DISPLAY_ORIENTATION; }
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int display_backlight(int val) { return backlight_pwm_set(val); }
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void display_init_seq(void) {
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HAL_GPIO_WritePin(GPIOC, GPIO_PIN_14, GPIO_PIN_RESET); // LCD_RST/PC14
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// wait 10 milliseconds. only needs to be low for 10 microseconds.
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// my dev display module ties display reset and touch panel reset together.
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// keeping this low for max(display_reset_time, ctpm_reset_time) aids
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// development and does not hurt.
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HAL_Delay(10);
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HAL_GPIO_WritePin(GPIOC, GPIO_PIN_14, GPIO_PIN_SET); // LCD_RST/PC14
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// max wait time for hardware reset is 120 milliseconds
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// (experienced display flakiness using only 5ms wait before sending commands)
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HAL_Delay(120);
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// identify the controller we will communicate with
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#ifdef TREZOR_MODEL_T
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uint32_t id = display_identify();
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if (id == DISPLAY_ID_GC9307) {
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tf15411a_init_seq();
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} else if (id == DISPLAY_ID_ST7789V) {
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if (DISPLAY_ST7789V_INVERT_COLORS) {
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lx154a2422_init_seq();
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} else {
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lx154a2411_init_seq();
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}
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} else if (id == DISPLAY_ID_ILI9341V) {
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_154a_init_seq();
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}
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#else
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DISPLAY_PANEL_INIT_SEQ();
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#endif
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display_unsleep();
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}
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void display_setup_fmc(void) {
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// Reference UM1725 "Description of STM32F4 HAL and LL drivers",
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// section 64.2.1 "How to use this driver"
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SRAM_HandleTypeDef external_display_data_sram = {0};
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external_display_data_sram.Instance = FMC_NORSRAM_DEVICE;
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external_display_data_sram.Extended = FMC_NORSRAM_EXTENDED_DEVICE;
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external_display_data_sram.Init.NSBank = FMC_NORSRAM_BANK1;
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external_display_data_sram.Init.DataAddressMux = FMC_DATA_ADDRESS_MUX_DISABLE;
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external_display_data_sram.Init.MemoryType = FMC_MEMORY_TYPE_SRAM;
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#ifdef USE_DISP_I8080_16BIT_DW
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external_display_data_sram.Init.MemoryDataWidth =
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FMC_NORSRAM_MEM_BUS_WIDTH_16;
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#elif USE_DISP_I8080_8BIT_DW
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external_display_data_sram.Init.MemoryDataWidth = FMC_NORSRAM_MEM_BUS_WIDTH_8;
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#endif
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external_display_data_sram.Init.BurstAccessMode =
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FMC_BURST_ACCESS_MODE_DISABLE;
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external_display_data_sram.Init.WaitSignalPolarity =
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FMC_WAIT_SIGNAL_POLARITY_LOW;
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external_display_data_sram.Init.WrapMode = FMC_WRAP_MODE_DISABLE;
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external_display_data_sram.Init.WaitSignalActive = FMC_WAIT_TIMING_BEFORE_WS;
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external_display_data_sram.Init.WriteOperation = FMC_WRITE_OPERATION_ENABLE;
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external_display_data_sram.Init.WaitSignal = FMC_WAIT_SIGNAL_DISABLE;
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external_display_data_sram.Init.ExtendedMode = FMC_EXTENDED_MODE_DISABLE;
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external_display_data_sram.Init.AsynchronousWait =
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FMC_ASYNCHRONOUS_WAIT_DISABLE;
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external_display_data_sram.Init.WriteBurst = FMC_WRITE_BURST_DISABLE;
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external_display_data_sram.Init.ContinuousClock =
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FMC_CONTINUOUS_CLOCK_SYNC_ONLY;
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external_display_data_sram.Init.PageSize = FMC_PAGE_SIZE_NONE;
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// reference RM0090 section 37.5 Table 259, 37.5.4, Mode 1 SRAM, and 37.5.6
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FMC_NORSRAM_TimingTypeDef normal_mode_timing = {0};
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normal_mode_timing.AddressSetupTime = 5;
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normal_mode_timing.AddressHoldTime = 1; // don't care
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normal_mode_timing.DataSetupTime = 6;
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normal_mode_timing.BusTurnAroundDuration = 0; // don't care
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normal_mode_timing.CLKDivision = 2; // don't care
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normal_mode_timing.DataLatency = 2; // don't care
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normal_mode_timing.AccessMode = FMC_ACCESS_MODE_A;
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HAL_SRAM_Init(&external_display_data_sram, &normal_mode_timing, NULL);
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}
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void display_init(void) {
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// init peripherals
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__HAL_RCC_GPIOE_CLK_ENABLE();
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__HAL_RCC_GPIOA_CLK_ENABLE();
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__HAL_RCC_GPIOC_CLK_ENABLE();
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__HAL_RCC_GPIOD_CLK_ENABLE();
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__HAL_RCC_FMC_CLK_ENABLE();
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backlight_pwm_init();
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GPIO_InitTypeDef GPIO_InitStructure;
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// LCD_RST/PC14
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GPIO_InitStructure.Mode = GPIO_MODE_OUTPUT_PP;
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GPIO_InitStructure.Pull = GPIO_NOPULL;
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GPIO_InitStructure.Speed = GPIO_SPEED_FREQ_LOW;
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GPIO_InitStructure.Alternate = 0;
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GPIO_InitStructure.Pin = GPIO_PIN_14;
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// default to keeping display in reset
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HAL_GPIO_WritePin(GPIOC, GPIO_PIN_14, GPIO_PIN_RESET);
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HAL_GPIO_Init(GPIOC, &GPIO_InitStructure);
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// LCD_FMARK/PD12 (tearing effect)
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GPIO_InitStructure.Mode = GPIO_MODE_INPUT;
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GPIO_InitStructure.Pull = GPIO_NOPULL;
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GPIO_InitStructure.Speed = GPIO_SPEED_FREQ_VERY_HIGH;
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GPIO_InitStructure.Alternate = 0;
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GPIO_InitStructure.Pin = GPIO_PIN_12;
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HAL_GPIO_Init(GPIOD, &GPIO_InitStructure);
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GPIO_InitStructure.Mode = GPIO_MODE_AF_PP;
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GPIO_InitStructure.Pull = GPIO_NOPULL;
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GPIO_InitStructure.Speed = GPIO_SPEED_FREQ_VERY_HIGH;
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GPIO_InitStructure.Alternate = GPIO_AF12_FMC;
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// LCD_CS/PD7 LCD_RS/PD11 LCD_RD/PD4 LCD_WR/PD5
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GPIO_InitStructure.Pin = GPIO_PIN_7 | GPIO_PIN_11 | GPIO_PIN_4 | GPIO_PIN_5;
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HAL_GPIO_Init(GPIOD, &GPIO_InitStructure);
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// LCD_D0/PD14 LCD_D1/PD15 LCD_D2/PD0 LCD_D3/PD1
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GPIO_InitStructure.Pin = GPIO_PIN_14 | GPIO_PIN_15 | GPIO_PIN_0 | GPIO_PIN_1;
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HAL_GPIO_Init(GPIOD, &GPIO_InitStructure);
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// LCD_D4/PE7 LCD_D5/PE8 LCD_D6/PE9 LCD_D7/PE10
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GPIO_InitStructure.Pin = GPIO_PIN_7 | GPIO_PIN_8 | GPIO_PIN_9 | GPIO_PIN_10;
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HAL_GPIO_Init(GPIOE, &GPIO_InitStructure);
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#ifdef USE_DISP_I8080_16BIT_DW
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// LCD_D8/PE11 LCD_D9/PE12 LCD_D10/PE13 LCD_D11/PE14
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GPIO_InitStructure.Pin =
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GPIO_PIN_11 | GPIO_PIN_12 | GPIO_PIN_13 | GPIO_PIN_14;
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HAL_GPIO_Init(GPIOE, &GPIO_InitStructure);
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// LCD_D12/PE15
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GPIO_InitStructure.Pin = GPIO_PIN_15;
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HAL_GPIO_Init(GPIOE, &GPIO_InitStructure);
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// LCD_D13/PD8 LCD_D14/PD9 LCD_D15/PD10
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GPIO_InitStructure.Pin = GPIO_PIN_8 | GPIO_PIN_9 | GPIO_PIN_10;
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HAL_GPIO_Init(GPIOD, &GPIO_InitStructure);
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#endif
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display_setup_fmc();
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display_init_seq();
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display_set_little_endian();
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}
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void display_reinit(void) {
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// reinitialize FMC to set correct timing, have to do this in reinit because
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// boardloader is fixed.
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display_setup_fmc();
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// important for model T as this is not set in boardloader
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display_set_little_endian();
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DISPLAY_ORIENTATION = 0;
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backlight_pwm_reinit();
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#ifdef TREZOR_MODEL_T
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uint32_t id = display_identify();
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if (id == DISPLAY_ID_ST7789V && display_is_inverted()) {
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// newest TT display - set proper gamma
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lx154a2422_gamma();
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} else if (id == DISPLAY_ID_ST7789V) {
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lx154a2411_gamma();
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}
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#endif
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}
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void display_sync(void) {
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uint32_t id = display_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(GPIOD, GPIO_PIN_12)) {
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}
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while (GPIO_PIN_RESET == HAL_GPIO_ReadPin(GPIOD, GPIO_PIN_12)) {
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}
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}
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}
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void display_refresh(void) {}
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void display_set_little_endian(void) {
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uint32_t id = display_identify();
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if (id == DISPLAY_ID_GC9307) {
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// CANNOT SET ENDIAN FOR GC9307
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} else if (id == DISPLAY_ID_ST7789V) {
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CMD(0xB0);
|
|
DATA(0x00);
|
|
DATA(0xF8);
|
|
} else if (id == DISPLAY_ID_ILI9341V) {
|
|
// Interface Control: XOR BGR as ST7789V does
|
|
CMD(0xF6);
|
|
DATA(0x09);
|
|
DATA(0x30);
|
|
DATA(0x20);
|
|
}
|
|
}
|
|
|
|
void display_set_big_endian(void) {
|
|
uint32_t id = display_identify();
|
|
if (id == DISPLAY_ID_GC9307) {
|
|
// CANNOT SET ENDIAN FOR GC9307
|
|
} else if (id == DISPLAY_ID_ST7789V) {
|
|
CMD(0xB0);
|
|
DATA(0x00);
|
|
DATA(0xF0);
|
|
} else if (id == DISPLAY_ID_ILI9341V) {
|
|
// Interface Control: XOR BGR as ST7789V does
|
|
CMD(0xF6);
|
|
DATA(0x09);
|
|
DATA(0x30);
|
|
DATA(0x00);
|
|
}
|
|
}
|
|
|
|
const char *display_save(const char *prefix) { return NULL; }
|
|
|
|
void display_clear_save(void) {}
|