From 61e3f1803b3cd24ba1483d28003180b9255a3c5a Mon Sep 17 00:00:00 2001
From: Jeroen Domburg <git@j0h.nl>
Date: Mon, 29 May 2017 21:14:10 +0800
Subject: [PATCH] Mipi on SPI works.... but not with a big buffer.

---
 components/tme-esp32/main.c     |  2 +-
 components/tme-esp32/mipi_lcd.c | 19 ++++++++++++++-----
 sdkconfig                       |  4 ++--
 3 files changed, 17 insertions(+), 8 deletions(-)

diff --git a/components/tme-esp32/main.c b/components/tme-esp32/main.c
index 533e319..530102d 100644
--- a/components/tme-esp32/main.c
+++ b/components/tme-esp32/main.c
@@ -61,6 +61,6 @@ void app_main()
 	if (err!=ESP_OK) printf("Couldn't map bootrom part!\n");
 	printf("Starting emu...\n");
 //	xTaskCreatePinnedToCore(&mouseTask, "mouse", 6*1024, NULL, 6, NULL, 0);
-	xTaskCreatePinnedToCore(&emuTask, "emu", 6*1024, NULL, 5, NULL, 0);
+	xTaskCreatePinnedToCore(&emuTask, "emu", 8*1024, NULL, 5, NULL, 0);
 }
 
diff --git a/components/tme-esp32/mipi_lcd.c b/components/tme-esp32/mipi_lcd.c
index 262db49..3991d41 100644
--- a/components/tme-esp32/mipi_lcd.c
+++ b/components/tme-esp32/mipi_lcd.c
@@ -221,6 +221,8 @@ int findPixelVal(uint8_t *data, int x, int y) {
 volatile static uint8_t *currFbPtr=NULL;
 SemaphoreHandle_t dispSem = NULL;
 
+#define LINESPERBUF 8
+
 void IRAM_ATTR displayTask(void *arg) {
 
 	mipiInit();
@@ -238,22 +240,29 @@ void IRAM_ATTR displayTask(void *arg) {
 	}
 	
 	printf("Inited.\n");
-	uint8_t img[641];
+	uint8_t *img=malloc((LINESPERBUF*320*2)+1);
+	assert(img);
 
 	while(1) {
+		int l=0;
+		mipiResync();
 		xSemaphoreTake(dispSem, portMAX_DELAY);
 		uint8_t *myData=(uint8_t*)currFbPtr;
-		uint8_t img[641];
 		img[0]=0x2c;
+		uint8_t *p=&img[1];
 		for (int j=0; j<320; j++) {
-			uint8_t *p=&img[1];
 			for (int i=0; i<320; i++) {
 				int v=findPixelVal(myData, i, j);
 				*p++=(v&0xff);
 				*p++=(v>>8);
 			}
-			mipiDsiSendLong(0x39, img, sizeof(img)+4);
-			img[0]=0x3c;
+			l++;
+			if (l>=LINESPERBUF || j==319) {
+				//mipiDsiSendLong(0x39, img, (LINESPERBUF*320*2)+1);
+				img[0]=0x3c;
+				l=0;
+				*p=&img[1];
+			}
 		}
 	}
 }
diff --git a/sdkconfig b/sdkconfig
index 82f04db..5784833 100644
--- a/sdkconfig
+++ b/sdkconfig
@@ -180,7 +180,7 @@ CONFIG_FATFS_MAX_LFN=255
 #
 # FreeRTOS
 #
-# CONFIG_FREERTOS_UNICORE is not set
+CONFIG_FREERTOS_UNICORE=y
 CONFIG_FREERTOS_CORETIMER_0=y
 # CONFIG_FREERTOS_CORETIMER_1 is not set
 CONFIG_FREERTOS_HZ=100
@@ -188,7 +188,7 @@ CONFIG_FREERTOS_ASSERT_ON_UNTESTED_FUNCTION=y
 # CONFIG_FREERTOS_CHECK_STACKOVERFLOW_NONE is not set
 # CONFIG_FREERTOS_CHECK_STACKOVERFLOW_PTRVAL is not set
 CONFIG_FREERTOS_CHECK_STACKOVERFLOW_CANARY=y
-# CONFIG_FREERTOS_WATCHPOINT_END_OF_STACK is not set
+CONFIG_FREERTOS_WATCHPOINT_END_OF_STACK=y
 CONFIG_FREERTOS_THREAD_LOCAL_STORAGE_POINTERS=1
 CONFIG_FREERTOS_ASSERT_FAIL_ABORT=y
 # CONFIG_FREERTOS_ASSERT_FAIL_PRINT_CONTINUE is not set