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Code Issues Releases Wiki Activity

boardloader, bootloader, firmware: factor out display_pwm_init (#52)

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This commit is contained in:
mcudev 2017-10-16 14:56:05 -04:00 committed by Pavol Rusnak
parent 2010213338
commit ca8d93ab5d
4 changed files with 20 additions and 29 deletions
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2
embed/bootloader/main.c
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@ -197,9 +197,7 @@ int main(void)
periph_init();
display_pwm_init();
display_orientation(0);
display_backlight(0);
ensure(0 == touch_init(), NULL);

44
embed/extmod/modtrezorui/display-stm32.h
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@ -22,8 +22,6 @@
#define CMD(X) (*((__IO uint8_t *)((uint32_t)(DISPLAY_MEMORY_BASE))) = (X))
#define DATA(X) (*((__IO uint8_t *)((uint32_t)(DISPLAY_MEMORY_BASE | (1 << DISPLAY_MEMORY_PIN)))) = (X))
static TIM_HandleTypeDef TIM1_Handle;
#define LED_PWM_TIM_PERIOD (10000)
static uint32_t timer1_get_source_freq() {
@ -112,12 +110,28 @@ void display_set_orientation(int degrees)
void display_set_backlight(int val)
{
__HAL_TIM_SET_COMPARE(&TIM1_Handle, TIM_CHANNEL_1, LED_PWM_TIM_PERIOD * val / 255);
TIM1->CCR1 = LED_PWM_TIM_PERIOD * val / 255;
}
void display_pwm_init(void)
int display_init(void)
{
// init peripherials
__HAL_RCC_GPIOE_CLK_ENABLE();
__HAL_RCC_TIM1_CLK_ENABLE();
__HAL_RCC_FMC_CLK_ENABLE();
GPIO_InitTypeDef GPIO_InitStructure;
// LCD_PWM/PA7 (backlight control)
GPIO_InitStructure.Mode = GPIO_MODE_AF_PP;
GPIO_InitStructure.Pull = GPIO_NOPULL;
GPIO_InitStructure.Speed = GPIO_SPEED_FREQ_VERY_HIGH;
GPIO_InitStructure.Alternate = GPIO_AF1_TIM1;
GPIO_InitStructure.Pin = GPIO_PIN_7;
HAL_GPIO_Init(GPIOA, &GPIO_InitStructure);
// enable PWM timer
TIM_HandleTypeDef TIM1_Handle;
TIM1_Handle.Instance = TIM1;
TIM1_Handle.Init.Period = LED_PWM_TIM_PERIOD - 1;
TIM1_Handle.Init.Prescaler = timer1_get_source_freq() / 1000000 - 1; // TIM runs at 1MHz
@ -135,28 +149,11 @@ void display_pwm_init(void)
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);
display_backlight(0);
HAL_TIM_PWM_Start(&TIM1_Handle, TIM_CHANNEL_1);
HAL_TIMEx_PWMN_Start(&TIM1_Handle, TIM_CHANNEL_1);
}
int display_init(void) {
// init peripherials
__HAL_RCC_GPIOE_CLK_ENABLE();
__HAL_RCC_TIM1_CLK_ENABLE();
__HAL_RCC_FMC_CLK_ENABLE();
GPIO_InitTypeDef GPIO_InitStructure;
// LCD_PWM/PA7 (backlight control)
GPIO_InitStructure.Mode = GPIO_MODE_AF_PP;
GPIO_InitStructure.Pull = GPIO_NOPULL;
GPIO_InitStructure.Speed = GPIO_SPEED_FREQ_VERY_HIGH;
GPIO_InitStructure.Alternate = GPIO_AF1_TIM1;
GPIO_InitStructure.Pin = GPIO_PIN_7;
HAL_GPIO_Init(GPIOA, &GPIO_InitStructure);
display_pwm_init();
// LCD_RST/PC14
GPIO_InitStructure.Mode = GPIO_MODE_OUTPUT_PP;
@ -268,7 +265,6 @@ int display_init(void) {
// gamma curve 2
// CMD(0xE1); DATA(0x70); DATA(0x2C); DATA(0x2E); DATA(0x15); DATA(0x10); DATA(0x09); DATA(0x48); DATA(0x33); DATA(0x53); DATA(0x0B); DATA(0x19); DATA(0x18); DATA(0x20); DATA(0x25);
#endif
display_backlight(0);
display_clear();
display_orientation(0);
display_unsleep();

1
embed/extmod/modtrezorui/display.h
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@ -44,7 +44,6 @@
// provided by port
void display_pwm_init(void);
int display_init(void);
void display_refresh(void);
void display_save(const char *filename);

2
embed/firmware/main.c
View File

@ -28,9 +28,7 @@ int main(void)
pendsv_init();
display_pwm_init();
display_orientation(0);
display_backlight(255);
ensure(0 == flash_init(), NULL);
ensure(0 == sdcard_init(), NULL);