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lv_disp: add clean_dcache_cb callback

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This commit is contained in:
Themba Dube 2020-08-21 09:52:13 -04:00
parent 001fabbb18
commit 24c2921c21
4 changed files with 29 additions and 14 deletions
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15
src/lv_core/lv_disp.c
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@ -352,6 +352,21 @@ void lv_disp_trig_activity(lv_disp_t * disp)
disp->last_activity_time = lv_tick_get();
}
/**
* Invalidate any CPU cache that is related to the display.
* @param disp pointer to an display (NULL to use the default display)
*/
void lv_disp_invalidate_cache(lv_disp_t * disp)
{
if(!disp) disp = lv_disp_get_default();
if(!disp) {
LV_LOG_WARN("lv_disp_invalidate_cache: no display registered");
return;
}
if(disp->driver.clean_dcache_cb)
disp->driver.clean_dcache_cb(&disp->driver);
}
/**
* Get a pointer to the screen refresher task to

6
src/lv_core/lv_disp.h
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@ -133,6 +133,12 @@ uint32_t lv_disp_get_inactive_time(const lv_disp_t * disp);
*/
void lv_disp_trig_activity(lv_disp_t * disp);
/**
* Invalidate any CPU cache that is related to the display.
* @param disp pointer to an display (NULL to use the default display)
*/
void lv_disp_invalidate_cache(lv_disp_t * disp);
/**
* Get a pointer to the screen refresher task to
* modify its parameters with `lv_task_...` functions.

19
src/lv_gpu/lv_gpu_stm32_dma2d.c
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@ -7,6 +7,7 @@
* INCLUDES
*********************/
#include "lv_gpu_stm32_dma2d.h"
#include "../lv_core/lv_disp.h"
#include "../lv_core/lv_refr.h"
#if LV_USE_GPU_STM32_DMA2D
@ -41,7 +42,6 @@
/**********************
* STATIC PROTOTYPES
**********************/
static void invalidate_cache(void);
static void dma2d_wait(void);
/**********************
@ -82,7 +82,7 @@ void lv_gpu_stm32_dma2d_init(void)
*/
void lv_gpu_stm32_dma2d_fill(lv_color_t * buf, lv_coord_t buf_w, lv_color_t color, lv_coord_t fill_w, lv_coord_t fill_h)
{
invalidate_cache();
lv_disp_invalidate_cache(NULL);
DMA2D->CR = 0x30000;
DMA2D->OMAR = (uint32_t)buf;
@ -112,7 +112,7 @@ void lv_gpu_stm32_dma2d_fill_mask(lv_color_t * buf, lv_coord_t buf_w, lv_color_t
lv_opa_t opa, lv_coord_t fill_w, lv_coord_t fill_h)
{
#if 0
invalidate_cache();
lv_disp_invalidate_cache(NULL);
/* Configure the DMA2D Mode, Color Mode and line output offset */
hdma2d.Init.Mode = DMA2D_M2M_BLEND;
@ -156,7 +156,7 @@ void lv_gpu_stm32_dma2d_fill_mask(lv_color_t * buf, lv_coord_t buf_w, lv_color_t
void lv_gpu_stm32_dma2d_copy(lv_color_t * buf, lv_coord_t buf_w, const lv_color_t * map, lv_coord_t map_w,
lv_coord_t copy_w, lv_coord_t copy_h)
{
invalidate_cache();
lv_disp_invalidate_cache(NULL);
DMA2D->CR = 0;
/* copy output colour mode, this register controls both input and output colour format */
@ -186,7 +186,7 @@ void lv_gpu_stm32_dma2d_copy(lv_color_t * buf, lv_coord_t buf_w, const lv_color_
void lv_gpu_stm32_dma2d_blend(lv_color_t * buf, lv_coord_t buf_w, const lv_color_t * map, lv_opa_t opa,
lv_coord_t map_w, lv_coord_t copy_w, lv_coord_t copy_h)
{
invalidate_cache();
lv_disp_invalidate_cache(NULL);
DMA2D->CR = 0x20000;
DMA2D->BGPFCCR = LV_DMA2D_COLOR_FORMAT;
@ -214,15 +214,6 @@ void lv_gpu_stm32_dma2d_blend(lv_color_t * buf, lv_coord_t buf_w, const lv_color
* STATIC FUNCTIONS
**********************/
static void invalidate_cache(void)
{
#if __DCACHE_PRESENT
if(SCB->CCR & (uint32_t)SCB_CCR_DC_Msk) {
SCB_CleanInvalidateDCache();
}
#endif
}
static void dma2d_wait(void)
{
lv_disp_t * disp = _lv_refr_get_disp_refreshing();

3
src/lv_hal/lv_hal_disp.h
View File

@ -111,6 +111,9 @@ typedef struct _disp_drv_t {
* User can execute very simple tasks here or yield the task */
void (*wait_cb)(struct _disp_drv_t * disp_drv);
/** OPTIONAL: Called when lvgl needs any CPU cache that affects rendering to be cleaned */
void (*clean_dcache_cb)(struct _disp_drv_t * disp_drv);
#if LV_USE_GPU
/** OPTIONAL: Blend two memories using opacity (GPU only)*/
void (*gpu_blend_cb)(struct _disp_drv_t * disp_drv, lv_color_t * dest, const lv_color_t * src, uint32_t length,