Merge pull request #5389 from mysterywolf/master

[qemu][lvgl] 优化lvgl显示驱动

bsp/qemu-vexpress-a9/drivers/Kconfig

@@ -36,12 +36,10 @@ config BSP_DRV_MOUSE
 if BSP_DRV_CLCD
     config BSP_LCD_WIDTH
         int "Width of LCD panel"
-        default 480 if PKG_USING_LV_MUSIC_DEMO
         default 640
 
     config BSP_LCD_HEIGHT
         int "Height of LCD panel"
-        default 272 if PKG_USING_LV_MUSIC_DEMO
         default 480
 endif
 

bsp/qemu-vexpress-a9/drivers/audio/drv_ac97.c

@@ -1,5 +1,5 @@
 /*
- * Copyright (c) 2006-2020, RT-Thread Development Team
+ * Copyright (c) 2006-2021, RT-Thread Development Team
  *
  * SPDX-License-Identifier: Apache-2.0
  *

bsp/qemu-vexpress-a9/drivers/audio/drv_ac97.h

@@ -1,5 +1,5 @@
 /*
- * Copyright (c) 2006-2020, RT-Thread Development Team
+ * Copyright (c) 2006-2021, RT-Thread Development Team
  *
  * SPDX-License-Identifier: Apache-2.0
  *
@@ -12,33 +12,33 @@
 #define __DRV_AC97_H__
 
 /* Register offsets */
-#define AC97_RESET				0x00
-#define AC97_MASTER				0x02
-#define AC97_HEADPHONE			0x04
-#define AC97_MASTER_MONO		0x06
-#define AC97_MASTER_TONE		0x08
-#define AC97_PC_BEEP			0x0A    //mixer volume
-#define AC97_PHONE				0x0C
-#define AC97_MIC				0x0E    //qwert db
-#define AC97_LINE				0x10		
-#define AC97_CD					0x12
-#define AC97_VIDEO				0x14
-#define AC97_AUX				0x16
-#define AC97_PCM				0x18
-#define AC97_REC_SEL			0x1A	//0 represent mic
-#define AC97_REC_GAIN			0x1C
-#define AC97_REC_GAIN_MIC		0x1E
-#define AC97_GENERAL_PURPOSE	0x20
-#define AC97_3D_CONTROL			0x22
-#define AC97_INT_PAGING			0x24    //qwert
-#define AC97_POWERDOWN			0x26
-#define AC97_PCM_FRONT_DAC_RATE 0x2c	/* PCM Front DAC Rate */
-#define AC97_PCM_SURR_DAC_RATE	0x2e	/* PCM Surround DAC Rate */
-#define AC97_PCM_LFE_DAC_RATE	0x30	/* PCM LFE DAC Rate */
-#define AC97_PCM_LR_ADC_RATE	0x32	/* PCM LR ADC Rate */
-#define AC97_PCM_MIC_ADC_RATE	0x34	/* PCM MIC ADC Rate */
-#define AC97_DAC_SLOT_MAP		0x6C
-#define AC97_ADC_SLOT_MAP		0x6E
+#define AC97_RESET              0x00
+#define AC97_MASTER             0x02
+#define AC97_HEADPHONE          0x04
+#define AC97_MASTER_MONO        0x06
+#define AC97_MASTER_TONE        0x08
+#define AC97_PC_BEEP            0x0A    //mixer volume
+#define AC97_PHONE              0x0C
+#define AC97_MIC                0x0E    //qwert db
+#define AC97_LINE               0x10
+#define AC97_CD                 0x12
+#define AC97_VIDEO              0x14
+#define AC97_AUX                0x16
+#define AC97_PCM                0x18
+#define AC97_REC_SEL            0x1A    //0 represent mic
+#define AC97_REC_GAIN           0x1C
+#define AC97_REC_GAIN_MIC       0x1E
+#define AC97_GENERAL_PURPOSE    0x20
+#define AC97_3D_CONTROL         0x22
+#define AC97_INT_PAGING         0x24    //qwert
+#define AC97_POWERDOWN          0x26
+#define AC97_PCM_FRONT_DAC_RATE 0x2c    /* PCM Front DAC Rate */
+#define AC97_PCM_SURR_DAC_RATE  0x2e    /* PCM Surround DAC Rate */
+#define AC97_PCM_LFE_DAC_RATE   0x30    /* PCM LFE DAC Rate */
+#define AC97_PCM_LR_ADC_RATE    0x32    /* PCM LR ADC Rate */
+#define AC97_PCM_MIC_ADC_RATE   0x34    /* PCM MIC ADC Rate */
+#define AC97_DAC_SLOT_MAP       0x6C
+#define AC97_ADC_SLOT_MAP       0x6E
 
 void ac97_reset(void);
 rt_err_t ac97_set_vol(int vol);

bsp/qemu-vexpress-a9/drivers/audio/drv_pl041.c

@@ -1,5 +1,5 @@
 /*
- * Copyright (c) 2006-2020, RT-Thread Development Team
+ * Copyright (c) 2006-2021, RT-Thread Development Team
  *
  * SPDX-License-Identifier: Apache-2.0
  *

bsp/qemu-vexpress-a9/drivers/audio/drv_pl041.h

@@ -1,5 +1,5 @@
 /*
- * Copyright (c) 2006-2020, RT-Thread Development Team
+ * Copyright (c) 2006-2021, RT-Thread Development Team
  *
  * SPDX-License-Identifier: Apache-2.0
  *
@@ -14,11 +14,11 @@
 #define PL041_BASE_ADDR    (0x10004000)
 
 /* offsets in CTRL_CH */
-#define AACI_RXCR        0x00	/* 29 bits Control Rx FIFO */
-#define AACI_TXCR        0x04	/* 17 bits Control Tx FIFO */
-#define AACI_SR          0x08	/* 12 bits Status */
-#define AACI_ISR         0x0C	/* 7 bits  Int Status */
-#define AACI_IE          0x10	/* 7 bits  Int Enable */
+#define AACI_RXCR        0x00   /* 29 bits Control Rx FIFO */
+#define AACI_TXCR        0x04   /* 17 bits Control Tx FIFO */
+#define AACI_SR          0x08   /* 12 bits Status */
+#define AACI_ISR         0x0C   /* 7 bits  Int Status */
+#define AACI_IE          0x10   /* 7 bits  Int Enable */
 
 /* both for AACI_RXCR and AACI_TXCR */
 #define AACI_CR_FEN           (1 << 16)  /* fifo enable */
@@ -39,7 +39,7 @@
 #define AACI_CR_SL3           (1 << 3)
 #define AACI_CR_SL2           (1 << 2)
 #define AACI_CR_SL1           (1 << 1)
-#define AACI_CR_EN            (1 << 0)	/* receive enable */
+#define AACI_CR_EN            (1 << 0)  /* receive enable */
 
 /* status register bits */
 #define AACI_SR_RXTOFE        (1 << 11)  /* rx timeout fifo empty */
@@ -66,29 +66,29 @@
 /* interrupt enable */
 #define AACI_IE_RXTOIE        (1 << 6)   /*rx timeout interrupt enable*/
 #define AACI_IE_URIE          (1 << 5)   /*Transmit underrun interrupt enable*/
-#define AACI_IE_ORIE          (1 << 4)	 /*Overrun receive interrupt enable*/
+#define AACI_IE_ORIE          (1 << 4)   /*Overrun receive interrupt enable*/
 #define AACI_IE_RXIE          (1 << 3)   /*Receive interrupt enable*/
 #define AACI_IE_TXIE          (1 << 2)   /*Transmit interrupt enable*/
 #define AACI_IE_RXTIE         (1 << 1)   /*Receive timeout interrupt enable*/
-#define AACI_IE_TXCIE         (1 << 0)	 /*Transmit complete interrupt enable*/
+#define AACI_IE_TXCIE         (1 << 0)   /*Transmit complete interrupt enable*/
 
 /* interrupt status */
-#define AACI_ISR_RXTOFE	(1 << 6)	/* rx timeout fifo empty */
-#define AACI_ISR_UR		(1 << 5)	/* tx fifo underrun */
-#define AACI_ISR_OR		(1 << 4)	/* rx fifo overrun */
-#define AACI_ISR_RX		(1 << 3)	/* rx interrupt status */
-#define AACI_ISR_TX		(1 << 2)	/* tx interrupt status */
-#define AACI_ISR_RXTO	(1 << 1)	/* rx timeout */
-#define AACI_ISR_TXC	(1 << 0)	/* tx complete */
+#define AACI_ISR_RXTOFE (1 << 6)    /* rx timeout fifo empty */
+#define AACI_ISR_UR     (1 << 5)    /* tx fifo underrun */
+#define AACI_ISR_OR     (1 << 4)    /* rx fifo overrun */
+#define AACI_ISR_RX     (1 << 3)    /* rx interrupt status */
+#define AACI_ISR_TX     (1 << 2)    /* tx interrupt status */
+#define AACI_ISR_RXTO   (1 << 1)    /* rx timeout */
+#define AACI_ISR_TXC    (1 << 0)    /* tx complete */
 
 /* interrupt enable */
-#define AACI_IE_RXTOFE	(1 << 6)	/* rx timeout fifo empty */
-#define AACI_IE_UR		(1 << 5)	/* tx fifo underrun */
-#define AACI_IE_OR		(1 << 4)	/* rx fifo overrun */
-#define AACI_IE_RX		(1 << 3)	/* rx interrupt status */
-#define AACI_IE_TX		(1 << 2)	/* tx interrupt status */
-#define AACI_IE_RXTO	(1 << 1)	/* rx timeout */
-#define AACI_IE_TXC		(1 << 0)	/* tx complete */
+#define AACI_IE_RXTOFE  (1 << 6)    /* rx timeout fifo empty */
+#define AACI_IE_UR      (1 << 5)    /* tx fifo underrun */
+#define AACI_IE_OR      (1 << 4)    /* rx fifo overrun */
+#define AACI_IE_RX      (1 << 3)    /* rx interrupt status */
+#define AACI_IE_TX      (1 << 2)    /* tx interrupt status */
+#define AACI_IE_RXTO    (1 << 1)    /* rx timeout */
+#define AACI_IE_TXC     (1 << 0)    /* tx complete */
 
 /* slot flag register bits */
 #define AACI_SLFR_RWIS        (1 << 13)    /* raw wake-up interrupt status */
@@ -120,7 +120,7 @@
 #define AACI_ICLR_RXOEC2      (1 << 2)       /* Receive overrun error clear */
 #define AACI_ICLR_RXOEC1      (1 << 1)       /* Receive overrun error clear */
 #define AACI_ICLR_WISC        (1 << 0)       /* Wake-up interrupt status clear */
-                                
+
 /* Main control register bits AACI_MAINCR */
 #define AACI_MAINCR_SCRA(x)   ((x) << 10)     /* secondary codec reg access */
 #define AACI_MAINCR_DMAEN     (1 << 9)        /* dma enable */
@@ -141,8 +141,8 @@
 #define SYNC_FORCE   (1 << 0)
 
 /* Main flag register bits. P66 */
-#define MAINFR_TXB   (1 << 1)	/* transmit busy */
-#define MAINFR_RXB   (1 << 0)	/* receive busy */
+#define MAINFR_TXB   (1 << 1)   /* transmit busy */
+#define MAINFR_RXB   (1 << 0)   /* receive busy */
 
 #define PL041_CHANNEL_LEFT_DAC    (0x1 << 3)
 #define PL041_CHANNEL_RIGHT_DAC   (0x1 << 3)

bsp/qemu-vexpress-a9/drivers/audio/drv_sound.c

@@ -1,6 +1,6 @@
 /*
- * Copyright (c) 2006-2018, RT-Thread Development Team
- * 
+ * Copyright (c) 2006-2021, RT-Thread Development Team
+ *
  * SPDX-License-Identifier: Apache-2.0
  *
  * Date           Author       Notes

bsp/qemu-vexpress-a9/drivers/audio/drv_sound.h

@@ -1,6 +1,6 @@
 /*
- * Copyright (c) 2006-2018, RT-Thread Development Team
- * 
+ * Copyright (c) 2006-2021, RT-Thread Development Team
+ *
  * SPDX-License-Identifier: Apache-2.0
  *
  * Date           Author       Notes

bsp/qemu-vexpress-a9/drivers/board.c

@@ -1,5 +1,5 @@
 /*
- * Copyright (c) 2006-2018, RT-Thread Development Team
+ * Copyright (c) 2006-2021, RT-Thread Development Team
  *
  * SPDX-License-Identifier: Apache-2.0
  *

bsp/qemu-vexpress-a9/drivers/board.h

@@ -1,5 +1,5 @@
 /*
- * Copyright (c) 2006-2020, RT-Thread Development Team
+ * Copyright (c) 2006-2021, RT-Thread Development Team
  *
  * SPDX-License-Identifier: Apache-2.0
  *

bsp/qemu-vexpress-a9/drivers/drv_clcd.c

@@ -1,5 +1,5 @@
 /*
- * Copyright (c) 2006-2020, RT-Thread Development Team
+ * Copyright (c) 2006-2021, RT-Thread Development Team
  *
  * SPDX-License-Identifier: Apache-2.0
  *
@@ -88,7 +88,7 @@ static rt_err_t drv_clcd_control(struct rt_device *device, int cmd, void *args)
 }
 
 #ifdef RT_USING_DEVICE_OPS
-const static struct rt_device_ops clcd_ops = 
+const static struct rt_device_ops clcd_ops =
 {
     drv_clcd_init,
     RT_NULL,
@@ -109,7 +109,7 @@ int drv_clcd_hw_init(void)
 
     _lcd.width  = CLCD_WIDTH;
     _lcd.height = CLCD_HEIGHT;
-    _lcd.fb     = rt_malloc (_lcd.width * _lcd.height * 2);
+    _lcd.fb     = rt_malloc_align(_lcd.width * _lcd.height * 2, 32);
     if (_lcd.fb == NULL)
     {
         rt_kprintf("initialize frame buffer failed!\n");

bsp/qemu-vexpress-a9/drivers/drv_clcd.h

@@ -1,5 +1,5 @@
 /*
- * Copyright (c) 2006-2020, RT-Thread Development Team
+ * Copyright (c) 2006-2021, RT-Thread Development Team
  *
  * SPDX-License-Identifier: Apache-2.0
  *

bsp/qemu-vexpress-a9/drivers/drv_keyboard.c

@@ -1,5 +1,5 @@
 /*
- * Copyright (c) 2006-2020, RT-Thread Development Team
+ * Copyright (c) 2006-2021, RT-Thread Development Team
  *
  * SPDX-License-Identifier: Apache-2.0
  *
@@ -141,7 +141,7 @@ static const struct keymap map[] = {
     {0x74,  RTGUIK_RIGHT, 0, "RIGHT"   },
     {0x0d,  RTGUIK_TAB,   0, "TAB"     },
     {0x76,  RTGUIK_ESCAPE, 0, "ESC"    },
-    {0x37,  RTGUIK_POWER,  0, "POWER"  }, 
+    {0x37,  RTGUIK_POWER,  0, "POWER"  },
     {0x5a,  RTGUIK_KP_ENTER, 0, "ENTER"},
     {0x66,  RTGUIK_BACKSPACE, 0, "BACKSPACE"},
 };
@@ -433,12 +433,12 @@ int rt_hw_keyboard_init(void)
     struct keyboard_pl050_pdata_t *pdat;
     virtual_addr_t virt = (virtual_addr_t)KEYBOARD_ADDRESS;
     int irq = KEYBOARD_IRQ_NUM;
-    
+
     id = (((read32(virt + 0xfec) & 0xff) << 24) |
                 ((read32(virt + 0xfe8) & 0xff) << 16) |
                 ((read32(virt + 0xfe4) & 0xff) <<  8) |
                 ((read32(virt + 0xfe0) & 0xff) <<  0));
-    
+
     if(((id >> 12) & 0xff) != 0x41 || (id & 0xfff) != 0x050)
     {
         LOG_E("read id fail id:0x%08x", id);

bsp/qemu-vexpress-a9/drivers/drv_keyboard.h

@@ -1,5 +1,5 @@
 /*
- * Copyright (c) 2006-2020, RT-Thread Development Team
+ * Copyright (c) 2006-2021, RT-Thread Development Team
  *
  * SPDX-License-Identifier: Apache-2.0
  *

bsp/qemu-vexpress-a9/drivers/drv_mouse.c

@@ -1,5 +1,5 @@
 /*
- * Copyright (c) 2006-2020, RT-Thread Development Team
+ * Copyright (c) 2006-2021, RT-Thread Development Team
  *
  * SPDX-License-Identifier: Apache-2.0
  *

bsp/qemu-vexpress-a9/drivers/drv_mouse.h

@@ -1,5 +1,5 @@
 /*
- * Copyright (c) 2006-2020, RT-Thread Development Team
+ * Copyright (c) 2006-2021, RT-Thread Development Team
  *
  * SPDX-License-Identifier: Apache-2.0
  *
@@ -12,4 +12,4 @@
 
 int rt_hw_mouse_init(void);
 
-#endif
+#endif

bsp/qemu-vexpress-a9/drivers/drv_sdio.c

@@ -1,5 +1,5 @@
 /*
- * Copyright (c) 2006-2020, RT-Thread Development Team
+ * Copyright (c) 2006-2021, RT-Thread Development Team
  *
  * SPDX-License-Identifier: Apache-2.0
  *
@@ -295,7 +295,7 @@ static rt_err_t sdhci_pl180_setclock(struct sdhci_t * sdhci, rt_uint32_t clock)
     if(clock)
     {
         temp = read32(pdat->virt + PL180_CLOCK) | (0x1<<8);
-        temp = temp; // skip warning 
+        temp = temp; // skip warning
         write32(pdat->virt + PL180_CLOCK, 0x100);
     }
     else
@@ -388,7 +388,7 @@ static void mmc_set_iocfg(struct rt_mmcsd_host *host, struct rt_mmcsd_io_cfg *io
     LOG_D("clock:%d bus_width:%d", io_cfg->clock, io_cfg->bus_width);
 }
 
-static const struct rt_mmcsd_host_ops ops = 
+static const struct rt_mmcsd_host_ops ops =
 {
     mmc_request_send,
     mmc_set_iocfg,

bsp/qemu-vexpress-a9/drivers/drv_sdio.h

@@ -1,5 +1,5 @@
 /*
- * Copyright (c) 2006-2020, RT-Thread Development Team
+ * Copyright (c) 2006-2021, RT-Thread Development Team
  *
  * SPDX-License-Identifier: Apache-2.0
  *

bsp/qemu-vexpress-a9/drivers/drv_timer.c

@@ -1,5 +1,5 @@
 /*
- * Copyright (c) 2006-2018, RT-Thread Development Team
+ * Copyright (c) 2006-2021, RT-Thread Development Team
  *
  * SPDX-License-Identifier: Apache-2.0
  *
@@ -89,7 +89,7 @@ void timer_init(int timer, unsigned int preload)
 {
     uint32_t val;
 
-    if (timer == 0) 
+    if (timer == 0)
     {
         /* Setup Timer0 for generating irq */
         val = TIMER_CTRL(TIMER01_HW_BASE);
@@ -101,8 +101,8 @@ void timer_init(int timer, unsigned int preload)
 
         /* enable timer */
         TIMER_CTRL(TIMER01_HW_BASE) |= TIMER_CTRL_ENABLE;
-    } 
-    else 
+    }
+    else
     {
         /* Setup Timer1 for generating irq */
         val = TIMER_CTRL(TIMER23_HW_BASE);
@@ -122,7 +122,7 @@ void timer_clear_pending(int timer)
     if (timer == 0)
     {
         TIMER_INTCLR(TIMER01_HW_BASE) = 0x01;
-    } 
+    }
     else
     {
         TIMER_INTCLR(TIMER23_HW_BASE) = 0x01;

bsp/qemu-vexpress-a9/drivers/drv_timer.h

@@ -1,5 +1,5 @@
 /*
- * Copyright (c) 2006-2018, RT-Thread Development Team
+ * Copyright (c) 2006-2021, RT-Thread Development Team
  *
  * SPDX-License-Identifier: Apache-2.0
  *

bsp/qemu-vexpress-a9/drivers/lvgl/lv_conf.h

@@ -11,11 +11,12 @@
 #ifndef LV_CONF_H
 #define LV_CONF_H
 
-#define LV_USE_PERF_MONITOR     1
-#define LV_COLOR_DEPTH          16
+#define LV_USE_PERF_MONITOR         1
+#define LV_COLOR_DEPTH              16
 
 /* music player demo */
 #include <rtconfig.h>
+#define LV_DISP_DEF_REFR_PERIOD     10
 #define LV_HOR_RES_MAX          BSP_LCD_WIDTH
 #define LV_VER_RES_MAX          BSP_LCD_HEIGHT
 #define LV_USE_DEMO_RTT_MUSIC       1

bsp/qemu-vexpress-a9/drivers/lvgl/lv_port_disp.c

@@ -13,18 +13,11 @@
 /*A static or global variable to store the buffers*/
 static lv_disp_draw_buf_t disp_buf;
 
-rt_device_t lcd_device = 0;
+static rt_device_t lcd_device = 0;
 static struct rt_device_graphic_info info;
 
 static lv_disp_drv_t disp_drv;  /*Descriptor of a display driver*/
 
-typedef struct
-{
-    uint8_t blue;
-    uint8_t green;
-    uint8_t red;
-} lv_color24_t;
-
 static void color_to16_maybe(lv_color16_t *dst, lv_color_t *src)
 {
 #if (LV_COLOR_DEPTH == 16)
@@ -36,13 +29,6 @@ static void color_to16_maybe(lv_color16_t *dst, lv_color_t *src)
 #endif
 }
 
-static void color_to24(lv_color24_t *dst, lv_color_t *src)
-{
-    dst->blue = src->ch.blue;
-    dst->green = src->ch.green;
-    dst->red = src->ch.red;
-}
-
 /*Flush the content of the internal buffer the specific area on the display
  *You can use DMA or any hardware acceleration to do this operation in the background but
  *'lv_disp_flush_ready()' has to be called when finished.*/
@@ -75,76 +61,19 @@ static void lcd_fb_flush(lv_disp_drv_t *disp_drv, const lv_area_t *area, lv_colo
     uint32_t y;
     long int location = 0;
 
-    /* 8 bit per pixel */
-    if (info.bits_per_pixel == 8)
-    {
-        uint8_t *fbp8 = (uint8_t *)info.framebuffer;
-        //TODO color convert maybe
-        for (y = act_y1; y <= act_y2; y++)
-        {
-            for (x = act_x1; x <= act_x2; x++)
-            {
-                location = (x) + (y)*info.width;
-                fbp8[location] = color_p->full;
-                color_p++;
-            }
-
-            color_p += x2 - act_x2;
-        }
-    }
-
     /* 16 bit per pixel */
-    else if (info.bits_per_pixel == 16)
-    {
-        lv_color16_t *fbp16 = (lv_color16_t *)info.framebuffer;
+    lv_color16_t *fbp16 = (lv_color16_t *)info.framebuffer;
 
-        for (y = act_y1; y <= act_y2; y++)
-        {
-            for (x = act_x1; x <= act_x2; x++)
-            {
-                location = (x) + (y)*info.width;
-                color_to16_maybe(&fbp16[location], color_p);
-                color_p++;
-            }
-
-            color_p += x2 - act_x2;
-        }
-    }
-
-    /* 24 bit per pixel */
-    else if (info.bits_per_pixel == 24)
+    for (y = act_y1; y <= act_y2; y++)
     {
-        lv_color24_t *fbp24 = (lv_color24_t *)info.framebuffer;
-
-        for (y = act_y1; y <= act_y2; y++)
+        for (x = act_x1; x <= act_x2; x++)
         {
-            for (x = act_x1; x <= act_x2; x++)
-            {
-                location = (x) + (y)*info.width;
-                color_to24(&fbp24[location], color_p);
-                color_p++;
-            }
-
-            color_p += x2 - act_x2;
+            location = (x) + (y)*info.width;
+            color_to16_maybe(&fbp16[location], color_p);
+            color_p++;
         }
-    }
 
-    /* 32 bit per pixel */
-    else if (info.bits_per_pixel == 32)
-    {
-        uint32_t *fbp32 = (uint32_t *)info.framebuffer;
-        //TODO
-        for (y = act_y1; y <= act_y2; y++)
-        {
-            for (x = act_x1; x <= act_x2; x++)
-            {
-                location = (x) + (y)*info.width;
-                fbp32[location] = color_p->full;
-                color_p++;
-            }
-
-            color_p += x2 - act_x2;
-        }
+        color_p += x2 - act_x2;
     }
 
     struct rt_device_rect_info rect_info;
@@ -161,7 +90,7 @@ static void lcd_fb_flush(lv_disp_drv_t *disp_drv, const lv_area_t *area, lv_colo
 void lv_port_disp_init(void)
 {
     rt_err_t result;
-    lv_color_t *fbuf;
+    lv_color_t *fbuf1, *fbuf2;
 
     lcd_device = rt_device_find("lcd");
     if (lcd_device == 0)
@@ -187,15 +116,23 @@ void lv_port_disp_init(void)
     RT_ASSERT(info.bits_per_pixel == 8 || info.bits_per_pixel == 16 ||
               info.bits_per_pixel == 24 || info.bits_per_pixel == 32);
 
-    fbuf = rt_malloc(info.width * info.height / 10);
-    if (!fbuf)
+    fbuf1 = rt_malloc_align(info.width * info.height * sizeof(lv_color_t), 32);
+    if (fbuf1 == RT_NULL)
+    {
+        rt_kprintf("Error: alloc disp buf fail\n");
+        return;
+    }
+
+    fbuf2 = rt_malloc_align(info.width * info.height * sizeof(lv_color_t), 32);
+    if (fbuf2 == RT_NULL)
     {
         rt_kprintf("Error: alloc disp buf fail\n");
+        rt_free(fbuf1);
         return;
     }
 
     /*Initialize `disp_buf` with the buffer(s). With only one buffer use NULL instead buf_2 */
-    lv_disp_draw_buf_init(&disp_buf, fbuf, RT_NULL, info.width * 10);
+    lv_disp_draw_buf_init(&disp_buf, fbuf1, fbuf2, info.width * info.height);
 
     lv_disp_drv_init(&disp_drv); /*Basic initialization*/
 

bsp/qemu-vexpress-a9/drivers/realview.h

@@ -1,5 +1,5 @@
 /*
- * Copyright (c) 2006-2020, RT-Thread Development Team
+ * Copyright (c) 2006-2021, RT-Thread Development Team
  *
  * SPDX-License-Identifier: Apache-2.0
  *

bsp/qemu-vexpress-a9/drivers/secondary_cpu.c

@@ -1,5 +1,5 @@
 /*
- * Copyright (c) 2006-2018, RT-Thread Development Team
+ * Copyright (c) 2006-2021, RT-Thread Development Team
  *
  * SPDX-License-Identifier: Apache-2.0
  *

bsp/qemu-vexpress-a9/drivers/serial.c

@@ -1,5 +1,5 @@
 /*
- * Copyright (c) 2006-2020, RT-Thread Development Team
+ * Copyright (c) 2006-2021, RT-Thread Development Team
  *
  * SPDX-License-Identifier: Apache-2.0
  *

bsp/qemu-vexpress-a9/drivers/serial.h

@@ -1,5 +1,5 @@
 /*
- * Copyright (c) 2006-2020, RT-Thread Development Team
+ * Copyright (c) 2006-2021, RT-Thread Development Team
  *
  * SPDX-License-Identifier: Apache-2.0
  *

bsp/qemu-vexpress-a9/drivers/vexpress_a9.h

@@ -1,5 +1,5 @@
 /*
- * Copyright (c) 2006-2018, RT-Thread Development Team
+ * Copyright (c) 2006-2021, RT-Thread Development Team
  *
  * SPDX-License-Identifier: Apache-2.0
  *