arno/trezor-firmware
1
0
Fork 0
mirror of https://github.com/trezor/trezor-firmware.git synced 2024-12-16 03:18:09 +00:00
Code Issues Releases Wiki Activity

trezor.ui.display.backlight works now

Browse Source
This commit is contained in:
Pavol Rusnak 2016-06-06 14:26:08 +02:00
parent 377fffa5a5
commit 8b27cc3b71
No known key found for this signature in database
GPG Key ID: 91F3B339B9A02A3D
3 changed files with 36 additions and 13 deletions
Show Stats Download Patch File Download Diff File Expand all files Collapse all files

36
extmod/modtrezorui/display-stmhal.h
View File

@ -7,13 +7,19 @@
#include STM32_HAL_H
#define LED_PWM_TIM_PERIOD (10000)
extern uint32_t timer_get_source_freq(uint32_t tim_id);
#define CMD(X) (*((__IO uint8_t *)((uint32_t)(0x60000000))) = (X))
#define DATA(X) (*((__IO uint8_t *)((uint32_t)(0x60000000 | 0x10000))) = (X))
void DATAS(const void *bytes, int len);
static TIM_HandleTypeDef TIM1_Handle;
void display_sram_init(void) {
__GPIOE_CLK_ENABLE();
__TIM1_CLK_ENABLE();
__FSMC_CLK_ENABLE();
/*
@ -29,8 +35,13 @@ void display_sram_init(void) {
GPIO_InitTypeDef GPIO_InitStructure;
GPIO_InitStructure.Mode = GPIO_MODE_AF_PP;
GPIO_InitStructure.Pull = GPIO_PULLUP;
GPIO_InitStructure.Pull = GPIO_NOPULL;
GPIO_InitStructure.Speed = GPIO_SPEED_HIGH;
GPIO_InitStructure.Alternate = GPIO_AF1_TIM1;
// LCD_PWM/PB13
GPIO_InitStructure.Pin = GPIO_PIN_13;
HAL_GPIO_Init(GPIOB, &GPIO_InitStructure);
GPIO_InitStructure.Alternate = GPIO_AF12_FSMC;
// LCD_CS/PD7 LCD_RS/PD11 LCD_RD/PD4 LCD_WR/PD5
GPIO_InitStructure.Pin = GPIO_PIN_7 | GPIO_PIN_11 | GPIO_PIN_4 | GPIO_PIN_5;
@ -42,6 +53,28 @@ void display_sram_init(void) {
GPIO_InitStructure.Pin = GPIO_PIN_7 | GPIO_PIN_8 | GPIO_PIN_9 | GPIO_PIN_10;
HAL_GPIO_Init(GPIOE, &GPIO_InitStructure);
// enable PWM timer
TIM1_Handle.Instance = TIM1;
TIM1_Handle.Init.Period = LED_PWM_TIM_PERIOD - 1;
TIM1_Handle.Init.Prescaler = timer_get_source_freq(1) / 1000000 - 1; // TIM runs at 1MHz
TIM1_Handle.Init.ClockDivision = TIM_CLOCKDIVISION_DIV1;
TIM1_Handle.Init.CounterMode = TIM_COUNTERMODE_UP;
TIM1_Handle.Init.RepetitionCounter = 0;
HAL_TIM_PWM_Init(&TIM1_Handle);
TIM_OC_InitTypeDef TIM_OC_InitStructure;
TIM_OC_InitStructure.Pulse = 0;
TIM_OC_InitStructure.OCMode = TIM_OCMODE_PWM2;
TIM_OC_InitStructure.OCPolarity = TIM_OCPOLARITY_HIGH;
TIM_OC_InitStructure.OCFastMode = TIM_OCFAST_DISABLE;
TIM_OC_InitStructure.OCNPolarity = TIM_OCNPOLARITY_HIGH;
TIM_OC_InitStructure.OCIdleState = TIM_OCIDLESTATE_SET;
TIM_OC_InitStructure.OCNIdleState = TIM_OCNIDLESTATE_SET;
HAL_TIM_PWM_ConfigChannel(&TIM1_Handle, &TIM_OC_InitStructure, TIM_CHANNEL_1);
HAL_TIM_PWM_Start(&TIM1_Handle, TIM_CHANNEL_1);
HAL_TIMEx_PWMN_Start(&TIM1_Handle, TIM_CHANNEL_1);
// timing values from:
// http://ele-tech.com/html/it-is-developed-that-embedded-stm32-fsmc-interface-drives-tft-lcd-to-be-designed.html
@ -173,5 +206,6 @@ int display_backlight(int val)
if (val >= 0 && val <= 255) {
BACKLIGHT = val;
}
__HAL_TIM_SetCompare(&TIM1_Handle, TIM_CHANNEL_1, LED_PWM_TIM_PERIOD * BACKLIGHT / 255);
return BACKLIGHT;
}

2
extmod/modtrezorui/display.c
View File

@ -15,7 +15,7 @@
#include "display.h"
#include <string.h>
static int BACKLIGHT = 255;
static int BACKLIGHT = 0;
static int ORIENTATION = 0;
#if defined STM32_HAL_H

11
src/trezor/ui/__init__.py
View File

@ -7,17 +7,6 @@ from trezor import loop
display = Display()
# workaround for missing display.backlight in stmhal
def backlight(val: int):
import sys
if sys.platform == 'trezor':
import pyb
timer = pyb.Timer(1, freq=1000)
val = max(0, min(100, val * 100 // 255))
timer.channel(1, pyb.Timer.PWM_INVERTED, pin=pyb.Pin.board.LCD_PWM, pulse_width_percent=val)
else:
display.backlight(val)
def rgbcolor(r: int, g: int, b: int) -> int:
return ((r & 0xF8) << 8) | ((g & 0xFC) << 3) | ((b & 0xF8) >> 3)