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146 lines
6.0 KiB
146 lines
6.0 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 TREZOR_BOARD
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#include STM32_HAL_H
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#include "display_io.h"
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#include "irq.h"
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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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void display_io_init_gpio(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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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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#ifdef DISPLAY_TE_PIN
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// LCD_FMARK (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 = DISPLAY_TE_PIN;
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HAL_GPIO_Init(DISPLAY_TE_PORT, &GPIO_InitStructure);
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#endif
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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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}
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void display_io_init_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.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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#ifdef DISPLAY_TE_INTERRUPT_HANDLER
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void display_io_init_te_interrupt(void) {
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EXTI_HandleTypeDef EXTI_Handle = {0};
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EXTI_ConfigTypeDef EXTI_Config = {0};
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EXTI_Config.GPIOSel = DISPLAY_TE_INTERRUPT_GPIOSEL;
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EXTI_Config.Line = DISPLAY_TE_INTERRUPT_EXTI_LINE;
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EXTI_Config.Mode = EXTI_MODE_INTERRUPT;
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EXTI_Config.Trigger = EXTI_TRIGGER_RISING;
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HAL_EXTI_SetConfigLine(&EXTI_Handle, &EXTI_Config);
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// setup interrupt for tearing effect pin
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HAL_NVIC_SetPriority(DISPLAY_TE_INTERRUPT_NUM, IRQ_PRI_DMA, 0);
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}
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#endif
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