Added flash upload function

Makefile

@@ -2,12 +2,12 @@
 # 'separate' - Separate espfs and binaries, no OTA upgrade
 # 'combined' - Combined firmware blob, no OTA upgrade
 # 'ota' - Combined firmware blob with OTA upgrades.
-OUTPUT_TYPE=combined
+#OUTPUT_TYPE=combined
 #OUTPUT_TYPE=separate
-#OUTPUT_TYPE=ota
+OUTPUT_TYPE=ota
 
 #SPI flash size, in K
-ESP_SPI_FLASH_SIZE=1024
+ESP_SPI_FLASH_SIZE_K=1024
 #0: QIO, 1: QOUT, 2: DIO, 3: DOUT
 ESP_FLASH_MODE=2
 #0: 40MHz, 1: 26MHz, 2: 20MHz, 0xf: 80MHz
@@ -15,8 +15,7 @@ ESP_FLASH_FREQ_DIV=0
 
 
 ifeq ("$(OUTPUT_TYPE)","separate")
-#Set the pos and length of the ESPFS here. If these are undefined, the rest of the Makefile logic
-#will automatically put the webpages in the binary.
+#In case of separate ESPFS and binaries, set the pos and length of the ESPFS here. 
 ESPFS_POS = 0x12000
 ESPFS_SIZE = 0x2E000
 endif
@@ -118,6 +117,11 @@ else
 CFLAGS += -DESPFS_POS=$(ESPFS_POS) -DESPFS_SIZE=$(ESPFS_SIZE)
 endif
 
+ifeq ("$(OUTPUT_TYPE)","ota")
+CFLAGS += -DOTA_FLASH_SIZE_K=$(ESP_SPI_FLASH_SIZE_K)
+endif
+
+
 #Define default target. If not defined here the one in the included Makefile is used as the default one.
 default-tgt: all
 
@@ -140,10 +144,10 @@ define maplookup
 $(patsubst $(strip $(1)):%,%,$(filter $(strip $(1)):%,$(2)))
 endef
 
-ESP_FLASH_SIZE_IX=$(call maplookup,$(ESP_SPI_FLASH_SIZE),512:0 1024:2 2048:5 4096:6)
+ESP_FLASH_SIZE_IX=$(call maplookup,$(ESP_SPI_FLASH_SIZE_K),512:0 1024:2 2048:5 4096:6)
 ESPTOOL_FREQ=$(call maplookup,$(ESP_FLASH_FREQ_DIV),0:40m 1:26m, 2:20m 0xf:80m)
 ESPTOOL_MODE=$(call maplookup,$(ESP_FLASH_MODE),0:qio 1:qout 2:dio 3:dout)
-ESPTOOL_SIZE=$(call maplookup,$(ESP_SPI_FLASH_SIZE),512:4m 256:2m 1024:8m 2048:16m 4096:32m)
+ESPTOOL_SIZE=$(call maplookup,$(ESP_SPI_FLASH_SIZE_K),512:4m 256:2m 1024:8m 2048:16m 4096:32m)
 
 ESPTOOL_OPTS=--port $(ESPPORT) --baud $(ESPBAUD)
 ESPTOOL_FLASHDEF=--flash_freq $(ESPTOOL_FREQ) --flash_mode $(ESPTOOL_MODE) --flash_size $(ESPTOOL_SIZE)

Makefile.ota

@@ -2,8 +2,8 @@
 #the espfs combined into the flash binary.
 
 # linker script used for the linker step
-LD_SCRIPT_USR1	:= eagle.app.v6.new.$(ESP_SPI_FLASH_SIZE).app1.ld
-LD_SCRIPT_USR2	:= eagle.app.v6.new.$(ESP_SPI_FLASH_SIZE).app2.ld
+LD_SCRIPT_USR1	:= eagle.app.v6.new.$(ESP_SPI_FLASH_SIZE_K).app1.ld
+LD_SCRIPT_USR2	:= eagle.app.v6.new.$(ESP_SPI_FLASH_SIZE_K).app2.ld
 
 TARGET_OUT_USR1 := $(addprefix $(BUILD_BASE)/,$(TARGET).user1.out)
 TARGET_OUT_USR2 := $(addprefix $(BUILD_BASE)/,$(TARGET).user2.out)
@@ -15,7 +15,7 @@ TARGET_BIN	:=  $(TARGET_BIN_USR1) $(TARGET_BIN_USR2)
 
 #Convert SPI size into arg for appgen. Format: no=size
 FLASH_MAP_CONV:=0:512 2:1024 5:2048 6:4096
-ESP_FLASH_SIZE_IX:=$(patsubst %:$(ESP_SPI_FLASH_SIZE),%,$(filter %:$(ESP_SPI_FLASH_SIZE),$(FLASH_MAP_CONV)))
+ESP_FLASH_SIZE_IX:=$(patsubst %:$(ESP_SPI_FLASH_SIZE_K),%,$(filter %:$(ESP_SPI_FLASH_SIZE_K),$(FLASH_MAP_CONV)))
 
 define genappbin
 $(1): $$(APP_AR)
@@ -41,7 +41,7 @@ $(eval $(call genappbin,$(TARGET_OUT_USR2),$$(LD_SCRIPT_USR2),$$(TARGET_BIN_USR2
 
 ldscript_memspecific.ld:
 	$(vecho) "GEN $@"
-	$(Q) echo "MEMORY { irom0_0_seg : org = 0x40240000, len = "$$(printf "0x%X" $$(($(ESP_SPI_FLASH_SIZE)-0x4000)))" }"> ldscript_memspecific.ld
+	$(Q) echo "MEMORY { irom0_0_seg : org = 0x40240000, len = "$$(printf "0x%X" $$(($(ESP_SPI_FLASH_SIZE_K)*1024-0x4000)))" }"> ldscript_memspecific.ld
 
 
 #define makeuser

libesphttpd

@@ -1 +1 @@
-Subproject commit 90102be16ff46065bd831ad5b70dc7a7aec08294
+Subproject commit 7b601225b50f6a929400720409c37b941dea39e0

user/user_main.c

@@ -47,10 +47,22 @@ int myPassFn(HttpdConnData *connData, int no, char *user, int userLen, char *pas
 }
 
 #ifdef ESPFS_POS
-CgiUploadEspfsParams espfsParams={
-	.espFsPos=ESPFS_POS,
-	.espFsSize=ESPFS_SIZE
+CgiUploadFlashDef uploadParams={
+	.type=CGIFLASH_TYPE_ESPFS,
+	.fw1Pos=ESPFS_POS,
+	.fw2Pos=0,
+	.fwSize=ESPFS_SIZE,
 };
+#define INCLUDE_FLASH_FNS
+#endif
+#ifdef OTA_FLASH_SIZE_K
+CgiUploadFlashDef uploadParams={
+	.type=CGIFLASH_TYPE_FW,
+	.fw1Pos=0x1000,
+	.fw2Pos=((OTA_FLASH_SIZE_K*1024)/2)+0x1000,
+	.fwSize=((OTA_FLASH_SIZE_K*1024)/2)-0x1000,
+};
+#define INCLUDE_FLASH_FNS
 #endif
 
 /*
@@ -71,8 +83,10 @@ HttpdBuiltInUrl builtInUrls[]={
 	{"/index.tpl", cgiEspFsTemplate, tplCounter},
 	{"/led.cgi", cgiLed, NULL},
 	{"/flash/download", cgiReadFlash, NULL},
-	{"/flash/next", cgiGetFirmwareNext, NULL},
-	{"/flash/upload", cgiUploadFirmware, NULL},
+#ifdef INCLUDE_FLASH_FNS
+	{"/flash/next", cgiGetFirmwareNext, &uploadParams},
+	{"/flash/upload", cgiUploadFirmware, &uploadParams},
+#endif
 	{"/flash/reboot", cgiRebootFirmware, NULL},
 
 	//Routines to make the /wifi URL and everything beneath it work.