From 72e1958953bdc3c4d3549d06435806e88a5acb4e Mon Sep 17 00:00:00 2001
From: Alexandre Abadie <alexandre.abadie@inria.fr>
Date: Tue, 1 Dec 2020 10:22:26 +0100
Subject: [PATCH] makefiles/tools: add common esptool configuration

---
 makefiles/tools/esptool.inc.mk | 56 ++++++++++++++++++++++++++++++++++
 1 file changed, 56 insertions(+)
 create mode 100644 makefiles/tools/esptool.inc.mk

diff --git a/makefiles/tools/esptool.inc.mk b/makefiles/tools/esptool.inc.mk
new file mode 100644
index 0000000000..facec3c718
--- /dev/null
+++ b/makefiles/tools/esptool.inc.mk
@@ -0,0 +1,56 @@
+ifneq (,$(filter esp_log_colored,$(USEMODULE)))
+  BOOTLOADER_COLOR = _colors
+endif
+ifneq (,$(filter esp_log_startup,$(USEMODULE)))
+  BOOTLOADER_INFO = _info
+endif
+
+BOOTLOADER_BIN = bootloader$(BOOTLOADER_COLOR)$(BOOTLOADER_INFO).bin
+
+ESPTOOL ?= $(RIOTTOOLS)/esptool/esptool.py
+
+# The ELFFILE is the base one used for flashing
+FLASHFILE ?= $(ELFFILE)
+
+# configure preflasher to convert .elf to .bin before flashing
+PREFLASHER = $(ESPTOOL)
+PREFFLAGS  = --chip $(FLASH_CHIP) elf2image
+PREFFLAGS += --flash_mode $(FLASH_MODE) --flash_size $(FLASH_SIZE)MB
+PREFFLAGS += --flash_freq $(FLASH_FREQ) $(FLASH_OPTS)
+PREFFLAGS += -o $(FLASHFILE).bin $(FLASHFILE);
+PREFFLAGS += printf "\n" > $(BINDIR)/partitions.csv;
+PREFFLAGS += printf "nvs, data, nvs, 0x9000, 0x6000\n" >> $(BINDIR)/partitions.csv;
+PREFFLAGS += printf "phy_init, data, phy, 0xf000, 0x1000\n" >> $(BINDIR)/partitions.csv;
+PREFFLAGS += printf "factory, app, factory, 0x10000, " >> $(BINDIR)/partitions.csv;
+PREFFLAGS += ls -l $(FLASHFILE).bin | awk '{ print $$5 }' >> $(BINDIR)/partitions.csv;
+
+PREFFLAGS += python3 $(RIOTTOOLS)/esptool/gen_esp32part.py
+PREFFLAGS += --verify $(BINDIR)/partitions.csv $(BINDIR)/partitions.bin
+FLASHDEPS += preflash
+
+# flasher configuration
+ifneq (,$(filter esp_qemu,$(USEMODULE)))
+  FLASHER = dd
+  FFLAGS += if=/dev/zero bs=1M count=$(FLASH_SIZE) |
+  FFLAGS += tr "\\000" "\\377" > tmp.bin && cat tmp.bin |
+  FFLAGS += head -c $$(($(BOOTLOADER_POS))) |
+  FFLAGS += cat - $(RIOTCPU)/$(CPU)/bin/$(BOOTLOADER_BIN) tmp.bin |
+  FFLAGS += head -c $$((0x8000)) |
+  FFLAGS += cat - $(BINDIR)/partitions.bin tmp.bin |
+  FFLAGS += head -c $$((0x10000)) |
+  FFLAGS += cat - $(FLASHFILE).bin tmp.bin |
+  FFLAGS += head -c $(FLASH_SIZE)MB > $(BINDIR)/$(CPU)flash.bin && rm tmp.bin;
+else
+  PROGRAMMER_SPEED ?= 460800
+  FLASHER = $(ESPTOOL)
+  FFLAGS += --chip $(FLASH_CHIP) --port $(PROG_DEV) --baud $(PROGRAMMER_SPEED)
+  FFLAGS += --before default_reset write_flash -z
+  FFLAGS += --flash_mode $(FLASH_MODE) --flash_freq $(FLASH_FREQ)
+  FFLAGS += $(BOOTLOADER_POS) $(RIOTCPU)/$(CPU)/bin/$(BOOTLOADER_BIN)
+  FFLAGS += 0x8000 $(BINDIR)/partitions.bin
+  FFLAGS += 0x10000 $(FLASHFILE).bin
+endif
+
+# reset tool configuration
+RESET ?= $(RIOTTOOLS)/esptool/espreset.py
+RESET_FLAGS ?= --port $(PROG_DEV)