Change version to 0.0.1

* Update README.md

* Update README.md

* Update README.md

* Update README.md

* Update README.md

* Update README.md

* Update README.md

* Update README.md

* Update README.md

* Update README.md

* Update README.md

* Update README.md

* Update README.md

* Update README.md

* Update README.md

Co-authored-by: Ben V. Brown <5425387+Ralim@users.noreply.github.com>

* Update README.md

Co-authored-by: Ben V. Brown <5425387+Ralim@users.noreply.github.com>

.clang-format

@@ -1,58 +1,4 @@
 ---
-Language: Cpp
-BasedOnStyle: GNU
-IndentWidth: 4
-AllowShortBlocksOnASingleLine: Empty
-AllowShortFunctionsOnASingleLine: None
-BreakBeforeBraces: Custom
-BraceWrapping:
-  AfterFunction: false
-  AfterCaseLabel: false
-  AfterEnum: false
-  AfterControlStatement: Never
-  AfterStruct : false
-  AfterUnion : false
-  AfterExternBlock : false
-  BeforeElse : false
-  BeforeWhile : false
-AlignAfterOpenBracket: Align
-AlignArrayOfStructures: Left
-AlignEscapedNewlines: Right
-AlignOperands: Align
-AllowShortEnumsOnASingleLine: False
-AllowShortIfStatementsOnASingleLine: Never
-AllowShortLoopsOnASingleLine : false
-AlwaysBreakAfterReturnType: AllDefinitions
-AlignTrailingComments : true
-AlignConsecutiveMacros: AcrossEmptyLines
-KeepEmptyLinesAtTheStartOfBlocks : false
-PointerAlignment : Left
-QualifierAlignment : Left
-ReferenceAlignment : Left
-RemoveBracesLLVM : false
-SpaceAfterCStyleCast : false
-SpaceAfterLogicalNot : false
-SpaceAfterTemplateKeyword : false
-SpaceAroundPointerQualifiers : Before
-SpaceBeforeAssignmentOperators : true
-SpaceBeforeCaseColon : false
-SpaceBeforeCpp11BracedList : false
-SpaceBeforeParens : ControlStatements
-SpaceBeforeParensOptions :
-  AfterControlStatements : true
-  AfterFunctionDeclarationName : false
-  AfterFunctionDefinitionName : false
-  AfterOverloadedOperator : false
-SpaceBeforeRangeBasedForLoopColon : false
-SpaceBeforeSquareBrackets : false
-SpaceInEmptyBlock : false
-SpaceInEmptyParentheses : false
-SpacesInCStyleCastParentheses : false
-SpacesInConditionalStatement : false
-SpacesInContainerLiterals : false
-SpacesInParentheses: false
-SpacesInSquareBrackets : false
-UseTab : Never
+BasedOnStyle: Chromium
 
-BitFieldColonSpacing: None
-BreakBeforeBinaryOperators: All
+...

.gitignore

@@ -76,3 +76,5 @@ fabric.properties
 # Android studio 3.1+ serialized cache file
 .idea/caches/build_file_checksums.ser
 build/
+
+.DS_Store

CMakeLists.txt

@@ -8,7 +8,7 @@ option(BLISP_BUILD_CLI "Build CLI Tool" OFF)
 add_library(libblisp_obj OBJECT
         lib/blisp.c
         lib/chip/blisp_chip_bl60x.c
-        lib/chip/blisp_chip_bl70x.c)
+        lib/chip/blisp_chip_bl70x.c lib/blisp_easy.c)
 
 target_include_directories(libblisp_obj PRIVATE ${CMAKE_SOURCE_DIR}/include/)
 
@@ -20,15 +20,15 @@ add_library(libblisp_static STATIC $<TARGET_OBJECTS:libblisp_obj>)
 
 set_target_properties(libblisp PROPERTIES
         PUBLIC_HEADER "include/blisp.h"
-        VERSION 1.0
+        VERSION 0.0.1
         SOVERSION 1
         LIBRARY_OUTPUT_DIRECTORY "shared"
         OUTPUT_NAME "blisp")
 
 set_target_properties(libblisp_static PROPERTIES
         PUBLIC_HEADER "include/blisp.h"
-        VERSION 1.0
-        SOVERSION 1
+        VERSION 0.0.1
+        SOVERSION 2
         ARCHIVE_OUTPUT_DIRECTORY "static"
         OUTPUT_NAME "blisp")
 
@@ -58,8 +58,11 @@ elseif(UNIX AND NOT APPLE)
 elseif(APPLE)
     target_sources(libblisp_obj PRIVATE
             ${CMAKE_SOURCE_DIR}/vendor/libserialport/macosx.c)
-    target_link_libraries(libblisp_obj PRIVATE "-framework IOKit" "-framework CoreFoundation")
-    target_compile_definitions(libblisp_obj PRIVATE LIBSERIALPORT_ATBUILD "SP_API=__attribute__((visibility(\"default\")))")
+    target_link_libraries(libblisp PRIVATE "-framework IOKit" "-framework CoreFoundation")
+    target_compile_definitions(libblisp_obj PRIVATE
+            LIBSERIALPORT_ATBUILD
+            "SP_PRIV=__attribute__((visibility(\"hidden\")))"
+            "SP_API=__attribute__((visibility(\"default\")))")
     target_include_directories(libblisp_obj PRIVATE ${CMAKE_SOURCE_DIR}/vendor/libserialport)
     write_file(${CMAKE_SOURCE_DIR}/vendor/libserialport/config.h "// bypass errors.")
 endif()

README.md

@@ -12,14 +12,16 @@ Open source tool and library for flashing Bouffalo RISC-V MCUs.
 - [ ] `bl61x` - BL616 / BL618
 - [ ] `bl808` - BL808
 
-# Supported Devices
-- [X] [Pinecil V2](https://wiki.pine64.org/wiki/Pinecil)
+# Supported OS
+- [x] Windows
+- [x] Linux
+- [ ] Apple (WIP: work-in-progress)
 
 # Building
 
 ## Clone repository
 
-If you have not cloned this repository locally; check out the git repository locally by running
+If you have not cloned this repository locally; clone the git repository locally by running
 
 ```bash
 git clone --recursive https://github.com/pine64/blisp.git
@@ -50,94 +52,6 @@ For BL60X, you need to specify also the serial port path:
 blisp --chip bl60x --reset -p /dev/ttyUSB0 name_of_firmware.bin
 ```
 
-# Updating Pinecil V2: How to build BLISP Flasher
+# How to flash Pinecil V2
 
-_Note: This has been tested on x86-64. The build process also works on aarch64 and armv7._
-
-## Linux Steps
-
-⛔ Do not use the Pinecil DC barrel jack while updating firmware or you may destroy your PC. ⛔
-
-1. **Linux set-up**
-```
-git clone --recursive https://github.com/pine64/blisp.git
-cd blisp
-mkdir build && cd build
-cmake -DBLISP_BUILD_CLI=ON ..
-cmake --build .
-mkdir tools/blisp/data
-mkdir -p tools/blisp/data/bl70x
-```
-  Note: the blisp command will now be in build/tools/blisp/ folder and could later be run with flags as ` ./tools/blisp/blisp` unless you cd into that folder.
-
-2. Get and cp or mv eflash_loader_32m.bin  to  bl70x folder
-```
-/build/tools/blisp/data/bl70x/eflash_loader_32m.bin
-``` 
-   a. Download [eflash*32m.bin here](https://github.com/River-b/blisp/tree/master/eflash).
-   b. Move eflash*32m.bin to the build/tools/data/bl70x folder 
-   b. Move eflash*32m.bin to the folder  build/tools/data/bl70x 
-   c. If it is a Zip, then unzip & move it.
-```
-unzip eflash_loader_32m.zip -d tools/blisp/data/bl70x/
-```
-
-3. **Get V2 firmware** from Github Ralim's IronOS
-
-   a. Download the newest stable [firmware release here](https://github.com/Ralim/IronOS).
-
-   b. Or download the Beta firmware [IronOS here](https://github.com/Ralim/IronOS/actions/runs/3545583488)
-      Scroll to the very bottom of the page and download **Pinecilv2**. This link is to [beta that has BLE and also works for EPR chargers](https://github.com/Ralim/IronOS/actions/runs/3545583488)
-   
-   d. Extract **Pinecilv2.zip** and select a single language file (English = ```Pinecilv2_EN.bin```).
-   
-   e. Move the Pinecilv2_EN.bin (or selected language) into the same folder as the blisp command.
-```
-build/tools/blisp/Pinecilv2_EN.bin
-```
-can delete all the rest of the Pinecilv2**.zip as it is not needed.
-
-4. Connect Pinecil to PC/laptop: long hold [`-`]  , then connect cable. Can release the [-] after about 15-20second. V2 screen should be Empty/black,  if not, then repeat connection, or find another cable/port. Pinecil connects as a serial COM port.
-
-5. If this fails, see [troubleshooting below](https://github.com/River-b/blisp/blob/master/README.md#troubleshooting).
-
-6. If you are in  the folder  `blisp/build/tools/blisp/`   then execute 
-```
-sudo ./blisp write -c bl70x --reset Pinecilv2_EN.bin
-```
-Note: if a different language was selected, replace `Pinecilv2_**.bin` above with the chosen file name.
-
-7. Almost done: unplug from the PC and restart V2. Hold down the minus `(-)` button to see the new version number.
-
-8. Before making menu changes, it is recommended to first [Restore Settings to Default](https://github.com/Ralim/IronOS/blob/dev/Documentation/GettingStarted.md#settings-menu).
-   Simply go to Advanced settings > Restore default settings, confirm using the `(+)` button. This sets all menu items to defaults, keeps the same firmware version, and does not affect any Boot-up logo art if applicable. Setting  defaults first avoids unexpected behavior due to some changes in upgrades.
-   
-9. Congradulations, and [Stay Fluxey, my friends!](https://www.reddit.com/r/PINE64official/comments/xk9vxu/most_interesting_man_in_the_world_i_dont_always/?utm_source=share&utm_medium=web2x&context=3)
-
-## Troubleshooting
-1. If the Pinecil V2 fails to connect to the PC, check the `dmesg` command output.
-
-    a. try different cable: usb-C to C is recommended over Usb-A, especially if you are having issues.
-    
-    b. don't use a USB hub, directly connect to the USB port on the PC or laptop.
-    
-    c. try different Usb ports (usb-c recommended). Sometimes the rear ports on a PC are better because they are directly connected to the motherboard.
-    
-    d. try a different PC/laptop
-    
-2. It is important to hold down the `(-)` minus button _before_ plugging in the Usb-c cable, and do not release the button for another 15-20 seconds. Try to hold it a little longer before releasing if your computer is slow and it is not working. In rare circumstances on fussy USB ports, keep holding the `(-)` for the entire update.
-
-3. If all of this fails, then join one of the [Live Community Chat channels linked](https://wiki.pine64.org/wiki/Pinecil#Community_links) in the Pinecil Wiki as volunteers there might be able to help.
-
-4. Open a an new issue ticket in this Github/Blisp flasher at https://github.com/pine64/blisp/issues
-
-5. See [Pinecil Wiki](https://wiki.pine64.org/wiki/Pinecil) for hardware information.
-
-6. See [Github Ralim's IronOS](https://ralim.github.io/IronOS/#getting-started) for firmware/software information. This is only the Flasher that loads the firmware; all Pinecil firmware documents and menu instructions are in IronOS.
-
-
-# To Do
-
-- [ ] Another code style
-- [ ] Finalize API
-- [ ] SDIO and JTAG support
+Check out the [wiki page](https://github.com/pine64/blisp/wiki/Update-Pinecil-V2).

include/blisp.h

@@ -6,6 +6,18 @@
 
 #include "blisp_chip.h"
 
+enum blisp_return {
+  BLISP_OK = 0,
+  BLISP_ERR_UNKNOWN = -1,
+  BLISP_ERR_NO_RESPONSE = -2,
+  BLISP_ERR_DEVICE_NOT_FOUND = -3,
+  BLISP_ERR_CANT_OPEN_DEVICE = -4,
+  // Can't auto-find device due it doesn't have native USB
+  BLISP_ERR_NO_AUTO_FIND_AVAILABLE = -5,
+  BLISP_ERR_PENDING = -6,
+  BLISP_ERR_CHIP_ERR = -7
+};
+
 struct blisp_segment_header {
   uint32_t dest_addr;
   uint32_t length;
@@ -28,22 +40,35 @@ struct blisp_boot_info {
   uint8_t chip_id[8];  // TODO: BL60X only 6 bytes
 };
 
-// TODO: Refactor variable names, so all will follow same semantic, like image_run, image_check etc.
+// TODO: Refactor variable names, so all will follow same semantic, like
+// image_run, image_check etc.
 
 int32_t blisp_device_init(struct blisp_device* device, struct blisp_chip* chip);
 int32_t blisp_device_open(struct blisp_device* device, const char* port_name);
 int32_t blisp_device_handshake(struct blisp_device* device, bool in_ef_loader);
-int32_t blisp_device_get_boot_info(struct blisp_device* device, struct blisp_boot_info* boot_info);
-int32_t blisp_device_load_boot_header(struct blisp_device* device, uint8_t* boot_header);
-int32_t blisp_device_load_segment_header(struct blisp_device* device, struct blisp_segment_header* segment_header);
-int32_t blisp_device_load_segment_data(struct blisp_device* device, uint8_t* segment_data, uint32_t segment_data_length);
+int32_t blisp_device_get_boot_info(struct blisp_device* device,
+                                   struct blisp_boot_info* boot_info);
+int32_t blisp_device_load_boot_header(struct blisp_device* device,
+                                      uint8_t* boot_header);
+int32_t blisp_device_load_segment_header(
+    struct blisp_device* device,
+    struct blisp_segment_header* segment_header);
+int32_t blisp_device_load_segment_data(struct blisp_device* device,
+                                       uint8_t* segment_data,
+                                       uint32_t segment_data_length);
 int32_t blisp_device_write_memory(struct blisp_device* device,
-                                  uint32_t address, uint32_t value,
+                                  uint32_t address,
+                                  uint32_t value,
                                   bool wait_for_res);
 int32_t blisp_device_check_image(struct blisp_device* device);
 int32_t blisp_device_run_image(struct blisp_device* device);
-int32_t blisp_device_flash_erase(struct blisp_device* device, uint32_t start_address, uint32_t end_address);
-int32_t blisp_device_flash_write(struct blisp_device* device, uint32_t start_address, uint8_t* payload, uint32_t payload_size);
+int32_t blisp_device_flash_erase(struct blisp_device* device,
+                                 uint32_t start_address,
+                                 uint32_t end_address);
+int32_t blisp_device_flash_write(struct blisp_device* device,
+                                 uint32_t start_address,
+                                 uint8_t* payload,
+                                 uint32_t payload_size);
 int32_t blisp_device_program_check(struct blisp_device* device);
 int32_t blisp_device_reset(struct blisp_device* device);
 void blisp_device_close(struct blisp_device* device);

include/blisp_chip.h

@@ -2,12 +2,15 @@
 #ifndef _BLISP_CHIP_H
 #define _BLISP_CHIP_H
 
-#include <stdint.h>
 #include <stdbool.h>
+#include <stdint.h>
 
 enum blisp_chip_type {
   BLISP_CHIP_BL60X,
-    BLISP_CHIP_BL70X
+  BLISP_CHIP_BL70X,
+  BLISP_CHIP_BL606P,
+  BLISP_CHIP_BL808,
+  BLISP_CHIP_BL61X,
 };
 
 struct blisp_chip {  // TODO: Move elsewhere?
@@ -15,10 +18,14 @@ struct blisp_chip { // TODO: Move elsewhere?
   const char* type_str;
   bool usb_isp_available;
   float handshake_byte_multiplier;
-    const char* default_eflash_loader_xtal; // TODO: Make this selectable
+  const char* default_xtal;  // TODO: Make this selectable
+  int64_t (*load_eflash_loader)(uint8_t clk_type, uint8_t** firmware_buf_ptr);
+  uint32_t tcm_address;
 };
 
 extern struct blisp_chip blisp_chip_bl60x;
 extern struct blisp_chip blisp_chip_bl70x;
+extern struct blisp_chip blisp_chip_bl808;
+extern struct blisp_chip blisp_chip_bl61x;
 
 #endif

include/blisp_easy.h

@@ -0,0 +1,54 @@
+// SPDX-License-Identifier: MIT
+#ifndef BLISP_BLISP_EASY_H
+#define BLISP_BLISP_EASY_H
+
+#include <stdio.h>
+#include "blisp.h"
+
+struct blisp_easy_transport {
+  uint8_t type;  // 0 - memory, 1 - FILE file_handle
+  union {
+    FILE* file_handle;
+    struct {
+      void* data_location;
+      uint32_t data_size;
+      uint32_t current_position;
+    } memory;
+  } data;
+};
+
+enum blisp_easy_error {
+  BLISP_EASY_ERR_TRANSPORT_ERROR = -100,
+  BLISP_EASY_ERR_CHECK_IMAGE_FAILED = -101
+};
+
+typedef void (*blisp_easy_progress_callback)(uint32_t current_value,
+                                             uint32_t max_value);
+
+struct blisp_easy_transport blisp_easy_transport_new_from_file(FILE* file);
+struct blisp_easy_transport blisp_easy_transport_new_from_memory(
+    void* data_location,
+    uint32_t data_size);
+
+int32_t blisp_easy_load_segment_data(
+    struct blisp_device* device,
+    uint32_t segment_size,
+    struct blisp_easy_transport* segment_transport,
+    blisp_easy_progress_callback progress_callback);
+
+int32_t blisp_easy_load_ram_image(
+    struct blisp_device* device,
+    struct blisp_easy_transport* image_transport,
+    blisp_easy_progress_callback progress_callback);
+
+int32_t blisp_easy_load_ram_app(struct blisp_device* device,
+                                struct blisp_easy_transport* app_transport,
+                                blisp_easy_progress_callback progress_callback);
+
+int32_t blisp_easy_flash_write(struct blisp_device* device,
+                               struct blisp_easy_transport* data_transport,
+                               uint32_t flash_location,
+                               uint32_t data_size,
+                               blisp_easy_progress_callback progress_callback);
+
+#endif  // BLISP_BLISP_EASY_H

include/blisp_struct.h

@@ -6,16 +6,18 @@
 #ifndef _LIBBLISP_STRUCT_H
 #define _LIBBLISP_STRUCT_H
 
-#include <stdint.h>
 #include <assert.h>
+#include <stdint.h>
 
 #pragma pack(push, 1)
 
 typedef struct {
   uint8_t ioMode; /*!< Serail flash interface mode,bit0-3:IF mode,bit4:unwrap */
-    uint8_t cReadSupport;                   /*!< Support continuous read mode,bit0:continuous read mode support,bit1:read mode cfg */
+  uint8_t cReadSupport;  /*!< Support continuous read mode,bit0:continuous read
+                            mode support,bit1:read mode cfg */
   uint8_t clkDelay;      /*!< SPI clock delay,bit0-3:delay,bit4-6:pad delay */
-    uint8_t clkInvert;                      /*!< SPI clock phase invert,bit0:clck invert,bit1:rx invert,bit2-4:pad delay,bit5-7:pad delay */
+  uint8_t clkInvert;     /*!< SPI clock phase invert,bit0:clck invert,bit1:rx
+                            invert,bit2-4:pad delay,bit5-7:pad delay */
   uint8_t resetEnCmd;    /*!< Flash enable reset command */
   uint8_t resetCmd;      /*!< Flash reset command */
   uint8_t resetCreadCmd; /*!< Flash reset continuous read command */
@@ -88,15 +90,13 @@ typedef struct {
 
 #define BFLB_BOOTROM_HASH_SIZE 256 / 8
 
-struct boot_flash_cfg_t
-{
+struct boot_flash_cfg_t {
   char magiccode[4]; /*'FCFG'*/
   SPI_Flash_Cfg_Type cfg;
   uint32_t crc32;
 };
 
-struct sys_clk_cfg_t
-{
+struct sys_clk_cfg_t {
   uint8_t xtal_type;
   uint8_t pll_clk;
   uint8_t hclk_div;
@@ -107,15 +107,13 @@ struct sys_clk_cfg_t
   uint8_t rsvd[2];
 };
 
-struct boot_clk_cfg_t
-{
+struct boot_clk_cfg_t {
   char magiccode[4]; /*'PCFG'*/
   struct sys_clk_cfg_t cfg;
   uint32_t crc32;
 };
 
-struct bfl_boot_header
-{
+struct bfl_boot_header {
   char magiccode[4]; /*'BFXP'*/
   uint32_t revison;
   struct boot_flash_cfg_t flashCfg;
@@ -128,7 +126,8 @@ struct bfl_boot_header
       uint32_t rsvd6_7 : 2;      /* [7: 6]  for encrypt*/
       uint32_t no_segment : 1;   /* [8]     no segment info */
       uint32_t cache_enable : 1; /* [9]     for cache */
-            uint32_t notload_in_bootrom :  1;   /* [10]    not load this img in bootrom */
+      uint32_t
+          notload_in_bootrom : 1;     /* [10]    not load this img in bootrom */
       uint32_t aes_region_lock : 1;   /* [11]    aes region lock */
       uint32_t cache_way_disable : 4; /* [15: 12]  cache way disable info*/
       uint32_t crc_ignore : 1;        /* [16]    ignore crc */
@@ -137,12 +136,12 @@ struct bfl_boot_header
       uint32_t rsvd19_31 : 13;        /* [31:19]  rsvd */
     } bval;
     uint32_t wval;
-    }bootcfg ;
+  } bootcfg;
 
   union {
     uint32_t segment_cnt;
     uint32_t img_length;
-    }segment_info;
+  } segment_info;
 
   uint32_t bootentry; /* entry point of the image*/
 
@@ -155,18 +154,18 @@ struct bfl_boot_header
   uint32_t crc32;
 };
 
-static_assert(sizeof(struct bfl_boot_header) == 176, "Bootheader have wrong size");
+static_assert(sizeof(struct bfl_boot_header) == 176,
+              "Bootheader have wrong size");
 
-struct blflash_segment_header
-{
+struct blflash_segment_header {
   uint32_t destaddr;
   uint32_t len;
   uint32_t rsvd;
   uint32_t crc32;
 };
 
-static_assert(sizeof(struct blflash_segment_header) == 16, "Segment header have wrong size");
-
+static_assert(sizeof(struct blflash_segment_header) == 16,
+              "Segment header have wrong size");
 
 #pragma pack(pop)
 

include/blisp_util.h

@@ -2,13 +2,26 @@
 #ifndef _BLISP_UTIL_H
 #define _BLISP_UTIL_H
 
+#include <stdarg.h>
+#include <stdio.h>
 #ifdef WIN32
 #include <windows.h>
 #else
 #include <time.h>
 #endif
 
-static void sleep_ms(int milliseconds){
+static void blisp_dlog(const char* format, ...)
+{
+  fflush(stdout);
+  va_list args;
+  va_start(args, format);
+  vfprintf(stderr, format, args);
+  va_end(args);
+  fputc('\n', stderr);
+}
+
+
+static void sleep_ms(int milliseconds) {
 #ifdef WIN32
   Sleep(milliseconds);
 #else
@@ -19,4 +32,67 @@ static void sleep_ms(int milliseconds){
 #endif
 }
 
+/**
+ * * Generated on Mon Jan  9 19:56:36 2023
+ * by pycrc vunknown, https://pycrc.org
+ * using the configuration:
+ *  - Width         = 32
+ *  - Poly          = 0x04c11db7
+ *  - XorIn         = 0xffffffff
+ *  - ReflectIn     = True
+ *  - XorOut        = 0xffffffff
+ *  - ReflectOut    = True
+ *  - Algorithm     = table-driven
+ */
+
+static const uint32_t crc_table[256] = {
+    0x00000000, 0x77073096, 0xee0e612c, 0x990951ba, 0x076dc419, 0x706af48f, 0xe963a535, 0x9e6495a3,
+    0x0edb8832, 0x79dcb8a4, 0xe0d5e91e, 0x97d2d988, 0x09b64c2b, 0x7eb17cbd, 0xe7b82d07, 0x90bf1d91,
+    0x1db71064, 0x6ab020f2, 0xf3b97148, 0x84be41de, 0x1adad47d, 0x6ddde4eb, 0xf4d4b551, 0x83d385c7,
+    0x136c9856, 0x646ba8c0, 0xfd62f97a, 0x8a65c9ec, 0x14015c4f, 0x63066cd9, 0xfa0f3d63, 0x8d080df5,
+    0x3b6e20c8, 0x4c69105e, 0xd56041e4, 0xa2677172, 0x3c03e4d1, 0x4b04d447, 0xd20d85fd, 0xa50ab56b,
+    0x35b5a8fa, 0x42b2986c, 0xdbbbc9d6, 0xacbcf940, 0x32d86ce3, 0x45df5c75, 0xdcd60dcf, 0xabd13d59,
+    0x26d930ac, 0x51de003a, 0xc8d75180, 0xbfd06116, 0x21b4f4b5, 0x56b3c423, 0xcfba9599, 0xb8bda50f,
+    0x2802b89e, 0x5f058808, 0xc60cd9b2, 0xb10be924, 0x2f6f7c87, 0x58684c11, 0xc1611dab, 0xb6662d3d,
+    0x76dc4190, 0x01db7106, 0x98d220bc, 0xefd5102a, 0x71b18589, 0x06b6b51f, 0x9fbfe4a5, 0xe8b8d433,
+    0x7807c9a2, 0x0f00f934, 0x9609a88e, 0xe10e9818, 0x7f6a0dbb, 0x086d3d2d, 0x91646c97, 0xe6635c01,
+    0x6b6b51f4, 0x1c6c6162, 0x856530d8, 0xf262004e, 0x6c0695ed, 0x1b01a57b, 0x8208f4c1, 0xf50fc457,
+    0x65b0d9c6, 0x12b7e950, 0x8bbeb8ea, 0xfcb9887c, 0x62dd1ddf, 0x15da2d49, 0x8cd37cf3, 0xfbd44c65,
+    0x4db26158, 0x3ab551ce, 0xa3bc0074, 0xd4bb30e2, 0x4adfa541, 0x3dd895d7, 0xa4d1c46d, 0xd3d6f4fb,
+    0x4369e96a, 0x346ed9fc, 0xad678846, 0xda60b8d0, 0x44042d73, 0x33031de5, 0xaa0a4c5f, 0xdd0d7cc9,
+    0x5005713c, 0x270241aa, 0xbe0b1010, 0xc90c2086, 0x5768b525, 0x206f85b3, 0xb966d409, 0xce61e49f,
+    0x5edef90e, 0x29d9c998, 0xb0d09822, 0xc7d7a8b4, 0x59b33d17, 0x2eb40d81, 0xb7bd5c3b, 0xc0ba6cad,
+    0xedb88320, 0x9abfb3b6, 0x03b6e20c, 0x74b1d29a, 0xead54739, 0x9dd277af, 0x04db2615, 0x73dc1683,
+    0xe3630b12, 0x94643b84, 0x0d6d6a3e, 0x7a6a5aa8, 0xe40ecf0b, 0x9309ff9d, 0x0a00ae27, 0x7d079eb1,
+    0xf00f9344, 0x8708a3d2, 0x1e01f268, 0x6906c2fe, 0xf762575d, 0x806567cb, 0x196c3671, 0x6e6b06e7,
+    0xfed41b76, 0x89d32be0, 0x10da7a5a, 0x67dd4acc, 0xf9b9df6f, 0x8ebeeff9, 0x17b7be43, 0x60b08ed5,
+    0xd6d6a3e8, 0xa1d1937e, 0x38d8c2c4, 0x4fdff252, 0xd1bb67f1, 0xa6bc5767, 0x3fb506dd, 0x48b2364b,
+    0xd80d2bda, 0xaf0a1b4c, 0x36034af6, 0x41047a60, 0xdf60efc3, 0xa867df55, 0x316e8eef, 0x4669be79,
+    0xcb61b38c, 0xbc66831a, 0x256fd2a0, 0x5268e236, 0xcc0c7795, 0xbb0b4703, 0x220216b9, 0x5505262f,
+    0xc5ba3bbe, 0xb2bd0b28, 0x2bb45a92, 0x5cb36a04, 0xc2d7ffa7, 0xb5d0cf31, 0x2cd99e8b, 0x5bdeae1d,
+    0x9b64c2b0, 0xec63f226, 0x756aa39c, 0x026d930a, 0x9c0906a9, 0xeb0e363f, 0x72076785, 0x05005713,
+    0x95bf4a82, 0xe2b87a14, 0x7bb12bae, 0x0cb61b38, 0x92d28e9b, 0xe5d5be0d, 0x7cdcefb7, 0x0bdbdf21,
+    0x86d3d2d4, 0xf1d4e242, 0x68ddb3f8, 0x1fda836e, 0x81be16cd, 0xf6b9265b, 0x6fb077e1, 0x18b74777,
+    0x88085ae6, 0xff0f6a70, 0x66063bca, 0x11010b5c, 0x8f659eff, 0xf862ae69, 0x616bffd3, 0x166ccf45,
+    0xa00ae278, 0xd70dd2ee, 0x4e048354, 0x3903b3c2, 0xa7672661, 0xd06016f7, 0x4969474d, 0x3e6e77db,
+    0xaed16a4a, 0xd9d65adc, 0x40df0b66, 0x37d83bf0, 0xa9bcae53, 0xdebb9ec5, 0x47b2cf7f, 0x30b5ffe9,
+    0xbdbdf21c, 0xcabac28a, 0x53b39330, 0x24b4a3a6, 0xbad03605, 0xcdd70693, 0x54de5729, 0x23d967bf,
+    0xb3667a2e, 0xc4614ab8, 0x5d681b02, 0x2a6f2b94, 0xb40bbe37, 0xc30c8ea1, 0x5a05df1b, 0x2d02ef8d
+};
+
+static uint32_t crc32_calculate(const void *data, size_t data_len)
+{
+  uint32_t crc = 0xffffffff;
+  const unsigned char *d = (const unsigned char *)data;
+  unsigned int tbl_idx;
+
+  while (data_len--) {
+    tbl_idx = (crc ^ *d) & 0xff;
+    crc = (crc_table[tbl_idx] ^ (crc >> 8)) & 0xffffffff;
+    d++;
+  }
+  return (crc & 0xffffffff) ^ 0xffffffff;
+}
+
+
 #endif

lib/blisp.c

@@ -2,8 +2,8 @@
 #include <blisp.h>
 #include <blisp_util.h>
 #include <libserialport.h>
-#include <malloc.h>
 #include <stdio.h>
+#include <stdlib.h>
 #include <string.h>
 
 #ifdef __linux__
@@ -13,55 +13,61 @@
 
 #define DEBUG
 
-int32_t blisp_device_init(struct blisp_device* device, struct blisp_chip* chip)
-{
+int32_t blisp_device_init(struct blisp_device* device,
+                          struct blisp_chip* chip) {
   device->chip = chip;
   device->is_usb = false;
   return 0;
 }
 
-int32_t blisp_device_open(struct blisp_device* device, const char* port_name)
-{
+int32_t blisp_device_open(struct blisp_device* device, const char* port_name) {
   int ret;
   struct sp_port* serial_port = NULL;
 
   if (port_name != NULL) {
     ret = sp_get_port_by_name(port_name, &serial_port);
     if (ret != SP_OK) {
-            return -1; // TODO: Improve error codes
+      blisp_dlog("Couldn't open device, err: %d", ret);
+      return BLISP_ERR_CANT_OPEN_DEVICE;
     }
   } else {
     if (!device->chip->usb_isp_available) {
-            return -2; // Can't auto-find device due it doesn't have native USB
+      return BLISP_ERR_NO_AUTO_FIND_AVAILABLE;
     }
-        struct sp_port **port_list;
+    struct sp_port** port_list;
     ret = sp_list_ports(&port_list);
     if (ret != SP_OK) {
-            return -1; // TODO: Improve error codes
+      blisp_dlog("Couldn't list ports, err: %d", ret);
+      return BLISP_ERR_UNKNOWN;
     }
     for (int i = 0; port_list[i] != NULL; i++) {
-            struct sp_port *port = port_list[i];
+      struct sp_port* port = port_list[i];
 
       int vid, pid;
       sp_get_port_usb_vid_pid(port, &vid, &pid);
       if (vid == 0xFFFF && pid == 0xFFFF) {
         ret = sp_get_port_by_name(sp_get_port_name(port), &serial_port);
         if (ret != SP_OK) {
-                    return -1; // TODO: Improve error codes
+          blisp_dlog("Couldn't open device, err: %d", ret);
+          return BLISP_ERR_CANT_OPEN_DEVICE;
         }
         break;
       }
     }
     sp_free_port_list(port_list);
     if (serial_port == NULL) {
-            return -3; // Device not found
+      return BLISP_ERR_DEVICE_NOT_FOUND;
     }
   }
 
   ret = sp_open(serial_port, SP_MODE_READ_WRITE);
-    if (ret != SP_OK) { // TODO: Handle not found
-        return -1;
+  if (ret != SP_OK) {
+    blisp_dlog("SP open failed: %d", ret);
+    return BLISP_ERR_UNKNOWN;  // TODO: Maybe this should be that it can't open
+                               // device?
   }
+  // TODO: Handle errors in following functions, although, none of them *should*
+  // fail
   sp_set_bits(serial_port, 8);
   sp_set_parity(serial_port, SP_PARITY_NONE);
   sp_set_stopbits(serial_port, 1);
@@ -70,11 +76,11 @@ int32_t blisp_device_open(struct blisp_device* device, const char* port_name)
   uint32_t vid, pid;
   sp_get_port_usb_vid_pid(serial_port, &vid, &pid);
   device->is_usb = pid == 0xFFFF;
-//    if (device->is_usb) {
-//        device->current_baud_rate = 2000000;
-//    } else {
+  //  if (device->is_usb) {
+  //    device->current_baud_rate = 2000000;
+  //  } else {
   device->current_baud_rate = 500000;
-//    }
+  //  }
 
 #if 0
     int fd;
@@ -87,15 +93,19 @@ int32_t blisp_device_open(struct blisp_device* device, const char* port_name)
 #endif
   ret = sp_set_baudrate(serial_port, device->current_baud_rate);
   if (ret != SP_OK) {
-        return -1; // TODO: Handle this
+    blisp_dlog("Set baud rate failed: %d... Also hello macOS user :)", ret);
+    return BLISP_ERR_UNKNOWN;
   }
   device->serial_port = serial_port;
 
-    return 0;
+  return BLISP_OK;
 }
 
-int32_t blisp_send_command(struct blisp_device* device, uint8_t command, void* payload, uint16_t payload_size, bool add_checksum)
-{
+int32_t blisp_send_command(struct blisp_device* device,
+                           uint8_t command,
+                           void* payload,
+                           uint16_t payload_size,
+                           bool add_checksum) {
   int ret;
   struct sp_port* serial_port = device->serial_port;
 
@@ -114,46 +124,49 @@ int32_t blisp_send_command(struct blisp_device* device, uint8_t command, void* p
   if (payload_size != 0) {
     memcpy(&device->tx_buffer[4], payload, payload_size);
   }
-    ret = sp_blocking_write(serial_port, device->tx_buffer, 4 + payload_size, 1000);
+  ret =
+      sp_blocking_write(serial_port, device->tx_buffer, 4 + payload_size, 1000);
   if (ret != (4 + payload_size)) {
-        return -1;
+    blisp_dlog("Received error or not written all data: %d", ret);
+    return BLISP_ERR_UNKNOWN;
   }
-    return 0;
+  return BLISP_OK;
 }
 
-int32_t blisp_receive_response(struct blisp_device* device, bool expect_payload) {
+int32_t blisp_receive_response(struct blisp_device* device,
+                               bool expect_payload) {
   // TODO: Check checksum
   int ret;
   struct sp_port* serial_port = device->serial_port;
   ret = sp_blocking_read(serial_port, &device->rx_buffer[0], 2, 1000);
   if (ret < 2) {
-#ifdef DEBUG
-        fprintf(stderr, "Failed to receive response. (ret = %d)\n", ret);
-#endif
-        return -1; // TODO: Terrible
+    blisp_dlog("Failed to receive response, ret: %d", ret);
+    return BLISP_ERR_UNKNOWN;  // TODO: Terrible
   } else if (device->rx_buffer[0] == 'O' && device->rx_buffer[1] == 'K') {
     if (expect_payload) {
-            sp_blocking_read(serial_port, &device->rx_buffer[2], 2, 100); // TODO: Check if really we received the data.
-            uint16_t data_length = (device->rx_buffer[3] << 8) | (device->rx_buffer[2]);
+      sp_blocking_read(serial_port, &device->rx_buffer[2], 2,
+                       100);  // TODO: Check if really we received the data.
+      uint16_t data_length =
+          (device->rx_buffer[3] << 8) | (device->rx_buffer[2]);
       sp_blocking_read(serial_port, &device->rx_buffer[0], data_length, 100);
       return data_length;
     }
     return 0;
   } else if (device->rx_buffer[0] == 'P' && device->rx_buffer[1] == 'D') {
-        return -3; // TODO: Terrible
+    return BLISP_ERR_PENDING;  // TODO: This might be rather positive return
+                               // number?
   } else if (device->rx_buffer[0] == 'F' && device->rx_buffer[1] == 'L') {
     sp_blocking_read(serial_port, &device->rx_buffer[2], 2, 100);
     device->error_code = (device->rx_buffer[3] << 8) | (device->rx_buffer[2]);
-        return -4; // Failed
+    blisp_dlog("Chip returned error: %d", device->error_code);
+    return BLISP_ERR_CHIP_ERR;
   }
-#ifdef DEBUG
-    fprintf(stderr, "Receive response failed... (err: %d, %d - %d)\n", ret, device->rx_buffer[0], device->rx_buffer[1]);
-#endif
-    return -1;
+  blisp_dlog("Failed to receive any response (err: %d, %d - %d)", ret,
+             device->rx_buffer[0], device->rx_buffer[1]);
+  return BLISP_ERR_UNKNOWN;
 }
 
-int32_t
-blisp_device_handshake(struct blisp_device* device, bool in_ef_loader) {
+int32_t blisp_device_handshake(struct blisp_device* device, bool in_ef_loader) {
   int ret;
   uint8_t handshake_buffer[600];
   struct sp_port* serial_port = device->serial_port;
@@ -168,21 +181,22 @@ blisp_device_handshake(struct blisp_device* device, bool in_ef_loader) {
     sleep_ms(50);  // Wait a bit so BootROM can init
   }
 
-    uint32_t bytes_count = device->chip->handshake_byte_multiplier * (float)device->current_baud_rate / 10.0f;
-    if (bytes_count > 600) bytes_count = 600;
+  uint32_t bytes_count = device->chip->handshake_byte_multiplier *
+                         (float)device->current_baud_rate / 10.0f;
+  if (bytes_count > 600)
+    bytes_count = 600;
   memset(handshake_buffer, 'U', bytes_count);
 
   for (uint8_t i = 0; i < 5; i++) {
     if (!in_ef_loader) {
       if (device->is_usb) {
-                sp_blocking_write(serial_port, "BOUFFALOLAB5555RESET\0\0", 22,
-                                  100);
+        sp_blocking_write(serial_port, "BOUFFALOLAB5555RESET\0\0", 22, 100);
       }
     }
-        ret = sp_blocking_write(serial_port, handshake_buffer, bytes_count,
-                                500);
+    ret = sp_blocking_write(serial_port, handshake_buffer, bytes_count, 500);
     if (ret < 0) {
-            return -1;
+      blisp_dlog("Handshake write failed, ret %d", ret);
+      return BLISP_ERR_UNKNOWN;
     }
 
     if (!in_ef_loader && !device->is_usb) {
@@ -193,171 +207,197 @@ blisp_device_handshake(struct blisp_device* device, bool in_ef_loader) {
     ret = sp_blocking_read(serial_port, device->rx_buffer, 2, 50);
     if (ret >= 2) {
       if (device->rx_buffer[0] == 'O' && device->rx_buffer[1] == 'K') {
-                return 0;
+        return BLISP_OK;
       }
     }
   }
-    return -4; // didn't received response
+  blisp_dlog("Received no response from chip.");
+  return BLISP_ERR_NO_RESPONSE;
 }
 
-int32_t blisp_device_get_boot_info(struct blisp_device* device, struct blisp_boot_info* boot_info)
-{
+int32_t blisp_device_get_boot_info(struct blisp_device* device,
+                                   struct blisp_boot_info* boot_info) {
   int ret;
 
   ret = blisp_send_command(device, 0x10, NULL, 0, false);
-    if (ret < 0) return ret;
+  if (ret < 0)
+    return ret;
 
   ret = blisp_receive_response(device, true);
-    if (ret < 0) return ret;
+  if (ret < 0)
+    return ret;
 
-    memcpy(boot_info->boot_rom_version, &device->rx_buffer[0], 4); // TODO: Endianess
+  memcpy(boot_info->boot_rom_version, &device->rx_buffer[0],
+         4);  // TODO: Endianess
   if (device->chip->type == BLISP_CHIP_BL70X) {
     memcpy(boot_info->chip_id, &device->rx_buffer[16], 8);
   }
   // TODO: BL60X
-    return 0;
+  return BLISP_OK;
 }
 
 // TODO: Use struct instead of uint8_t*
-int32_t blisp_device_load_boot_header(struct blisp_device* device, uint8_t* boot_header)
-{
+int32_t blisp_device_load_boot_header(struct blisp_device* device,
+                                      uint8_t* boot_header) {
   int ret;
   ret = blisp_send_command(device, 0x11, boot_header, 176, false);
-    if (ret < 0) return ret;
+  if (ret < 0)
+    return ret;
   ret = blisp_receive_response(device, false);
-    if (ret < 0) return ret;
+  if (ret < 0)
+    return ret;
 
-    return 0;
+  return BLISP_OK;
 }
 
-int32_t blisp_device_load_segment_header(struct blisp_device* device, struct blisp_segment_header* segment_header)
-{
+int32_t blisp_device_load_segment_header(
+    struct blisp_device* device,
+    struct blisp_segment_header* segment_header) {
   int ret;
   ret = blisp_send_command(device, 0x17, segment_header, 16, false);
-    if (ret < 0) return ret;
+  if (ret < 0)
+    return ret;
   ret = blisp_receive_response(device, true);  // TODO: Handle response
-    if (ret < 0) return ret;
+  if (ret < 0)
+    return ret;
 
-    return 0;
+  return BLISP_OK;
 }
 
-int32_t blisp_device_load_segment_data(struct blisp_device* device, uint8_t* segment_data, uint32_t segment_data_length)
-{
+int32_t blisp_device_load_segment_data(struct blisp_device* device,
+                                       uint8_t* segment_data,
+                                       uint32_t segment_data_length) {
   int ret;
-    ret = blisp_send_command(device, 0x18, segment_data, segment_data_length, false);
-    if (ret < 0) return ret;
+  ret = blisp_send_command(device, 0x18, segment_data, segment_data_length,
+                           false);
+  if (ret < 0)
+    return ret;
   ret = blisp_receive_response(device, false);
-    if (ret < 0) return ret;
+  if (ret < 0)
+    return ret;
 
-    return 0;
+  return BLISP_OK;
 }
 
-int32_t blisp_device_check_image(struct blisp_device* device)
-{
+int32_t blisp_device_check_image(struct blisp_device* device) {
   int ret;
   ret = blisp_send_command(device, 0x19, NULL, 0, false);
-    if (ret < 0) return ret;
+  if (ret < 0)
+    return ret;
   ret = blisp_receive_response(device, false);
-    if (ret < 0) return ret;
+  if (ret < 0)
+    return ret;
 
-    return 0;
+  return BLISP_OK;
 }
 
-int32_t
-blisp_device_write_memory(struct blisp_device* device, uint32_t address,
-                          uint32_t value, bool wait_for_res) {
+int32_t blisp_device_write_memory(struct blisp_device* device,
+                                  uint32_t address,
+                                  uint32_t value,
+                                  bool wait_for_res) {
   int ret;
   uint8_t payload[8];
   *(uint32_t*)(payload) = address;
   *(uint32_t*)(payload + 4) = value;  // TODO: Endianness
   ret = blisp_send_command(device, 0x50, payload, 8, true);
-    if (ret < 0) return ret;
+  if (ret < 0)
+    return ret;
   if (wait_for_res) {
     ret = blisp_receive_response(device, false);
-        if (ret < 0) return ret;
+    if (ret < 0)
+      return ret;
   }
 
-    return 0;
+  return BLISP_OK;
 }
 
-int32_t blisp_device_run_image(struct blisp_device* device)
-{
+int32_t blisp_device_run_image(struct blisp_device* device) {
   int ret;
 
   if (device->chip->type == BLISP_CHIP_BL70X) {  // ERRATA
     ret = blisp_device_write_memory(device, 0x4000F100, 0x4E424845, true);
-        if (ret < 0) return ret;
+    if (ret < 0)
+      return ret;
     ret = blisp_device_write_memory(device, 0x4000F104, 0x22010000, true);
-        if (ret < 0) return ret;
-//        ret = blisp_device_write_memory(device, 0x40000018, 0x00000000);
-//        if (ret < 0) return ret;
+    if (ret < 0)
+      return ret;
+    //        ret = blisp_device_write_memory(device, 0x40000018, 0x00000000);
+    //        if (ret < 0) return ret;
     ret = blisp_device_write_memory(device, 0x40000018, 0x00000002, false);
-        if (ret < 0) return ret;
-        return 0;
+    if (ret < 0)
+      return ret;
+    return BLISP_OK;
   }
 
   ret = blisp_send_command(device, 0x1A, NULL, 0, false);
-    if (ret < 0) return ret;
+  if (ret < 0)
+    return ret;
   ret = blisp_receive_response(device, false);
-    if (ret < 0) return ret;
+  if (ret < 0)
+    return ret;
 
-    return 0;
+  return BLISP_OK;
 }
 
-int32_t
-blisp_device_flash_erase(struct blisp_device* device, uint32_t start_address, uint32_t end_address)
-{
+int32_t blisp_device_flash_erase(struct blisp_device* device,
+                                 uint32_t start_address,
+                                 uint32_t end_address) {
   uint8_t payload[8];
   *(uint32_t*)(payload + 0) = start_address;
   *(uint32_t*)(payload + 4) = end_address;
 
   int ret = blisp_send_command(device, 0x30, payload, 8, true);
-    if (ret < 0) return ret;
+  if (ret < 0)
+    return ret;
   do {
     ret = blisp_receive_response(device, false);
-    } while (ret == -3);
+  } while (ret == BLISP_ERR_PENDING);
 
   return 0;
 }
 
-int32_t
-blisp_device_flash_write(struct blisp_device* device, uint32_t start_address, uint8_t* payload, uint32_t payload_size)
-{
+int32_t blisp_device_flash_write(struct blisp_device* device,
+                                 uint32_t start_address,
+                                 uint8_t* payload,
+                                 uint32_t payload_size) {
   // TODO: Add max payload size (8184?)
+  // TODO: Don't use malloc + add check
 
-    uint8_t* buffer = malloc(4 + payload_size); // TODO: Don't use malloc + add check
+  uint8_t* buffer = malloc(4 + payload_size);
   *((uint32_t*)(buffer)) = start_address;
   memcpy(buffer + 4, payload, payload_size);
   int ret = blisp_send_command(device, 0x31, buffer, payload_size + 4, true);
-    if (ret < 0) goto exit1;
+  if (ret < 0)
+    goto exit1;
   ret = blisp_receive_response(device, false);
 exit1:
   free(buffer);
   return ret;
 }
 
-int32_t blisp_device_program_check(struct blisp_device* device)
-{
+int32_t blisp_device_program_check(struct blisp_device* device) {
   int ret = blisp_send_command(device, 0x3A, NULL, 0, true);
-    if (ret < 0) return ret;
+  if (ret < 0)
+    return ret;
   ret = blisp_receive_response(device, false);
-    if (ret < 0) return ret;
+  if (ret < 0)
+    return ret;
 
   return 0;
 }
 
-int32_t blisp_device_reset(struct blisp_device* device)
-{
+int32_t blisp_device_reset(struct blisp_device* device) {
   int ret = blisp_send_command(device, 0x21, NULL, 0, true);
-    if (ret < 0) return ret;
+  if (ret < 0)
+    return ret;
   ret = blisp_receive_response(device, false);
-    if (ret < 0) return ret;
+  if (ret < 0)
+    return ret;
 
-    return 0;
+  return BLISP_OK;
 }
 
-void blisp_device_close(struct blisp_device* device)
-{
+void blisp_device_close(struct blisp_device* device) {
   struct sp_port* serial_port = device->serial_port;
   sp_close(serial_port);
 }

lib/blisp_easy.c

@@ -0,0 +1,345 @@
+// SPDX-License-Identifier: MIT
+#include "blisp_easy.h"
+#include "blisp_struct.h"
+#include "blisp_util.h"
+
+#include <inttypes.h>
+#include <string.h>
+
+static int64_t blisp_easy_transport_read(struct blisp_easy_transport* transport,
+                                         void* buffer,
+                                         uint32_t size) {
+  if (transport->type == 0) {
+    // TODO: Implement reading more than available
+    memcpy(buffer, (uint8_t*)transport->data.memory.data_location + transport->data.memory.current_position, size);
+    transport->data.memory.current_position += size;
+    return size;
+  } else {
+    return fread(buffer, size, 1, transport->data.file_handle);
+  }
+}
+
+static int64_t blisp_easy_transport_size(struct blisp_easy_transport* transport) {
+  if (transport->type == 0) {
+    return transport->data.memory.data_size;
+  } else {
+    // TODO: Implement
+  }
+}
+
+static void blisp_easy_report_progress(blisp_easy_progress_callback callback,
+                                       uint32_t current_value,
+                                       uint32_t max_value) {
+  if (callback != NULL) {
+    callback(current_value, max_value);
+  }
+}
+
+struct blisp_easy_transport blisp_easy_transport_new_from_file(FILE* file) {
+  struct blisp_easy_transport transport = {.type = 1, .data.file_handle = file};
+  return transport;
+}
+
+struct blisp_easy_transport blisp_easy_transport_new_from_memory(
+    void* data_location,
+    uint32_t data_size) {
+  struct blisp_easy_transport transport = {
+      .type = 0,
+      .data.memory.data_location = data_location,
+      .data.memory.data_size = data_size,
+      .data.memory.current_position = 0};
+  return transport;
+}
+
+int32_t blisp_easy_load_segment_data(
+    struct blisp_device* device,
+    uint32_t segment_size,
+    struct blisp_easy_transport* segment_transport,
+    blisp_easy_progress_callback progress_callback) {
+  int32_t ret;
+
+  uint32_t sent_data = 0;
+  uint32_t buffer_size = 0;
+  uint8_t buffer[4092];
+
+  blisp_easy_report_progress(progress_callback, 0, segment_size);
+
+  while (sent_data < segment_size) {
+    buffer_size = segment_size - sent_data;
+    if (buffer_size > 4092) {
+      buffer_size = 4092;
+    }
+    blisp_easy_transport_read(segment_transport, buffer,
+                              buffer_size);  // TODO: Error Handling
+    ret = blisp_device_load_segment_data(device, buffer, buffer_size);
+    if (ret < BLISP_OK) {
+      // TODO: Error logging fprintf(stderr, "Failed to load segment data. (ret
+      // %d)\n", ret);
+      return ret;
+    }
+    sent_data += buffer_size;
+    blisp_easy_report_progress(progress_callback, sent_data, segment_size);
+  }
+  return 0;
+}
+
+int32_t blisp_easy_load_ram_image(
+    struct blisp_device* device,
+    struct blisp_easy_transport* image_transport,
+    blisp_easy_progress_callback progress_callback) {
+  int32_t ret;
+
+  struct bfl_boot_header image_boot_header;
+  // TODO: Error handling
+  blisp_easy_transport_read(image_transport, &image_boot_header, 176);
+
+  ret = blisp_device_load_boot_header(device, (uint8_t*)&image_boot_header);
+  if (ret != BLISP_OK) {
+    // TODO: Error printing: fprintf(stderr, "Failed to load boot header.\n");
+    return ret;
+  }
+
+  {
+    for (uint8_t seg_index = 0;
+         seg_index < image_boot_header.segment_info.segment_cnt; seg_index++) {
+      struct blisp_segment_header segment_header = {0};
+      blisp_easy_transport_read(image_transport, &segment_header,
+                                16);  // TODO: Error handling
+
+      ret = blisp_device_load_segment_header(device, &segment_header);
+      if (ret != 0) {
+        // TODO: Error printing: fprintf(stderr, "Failed to load segment
+        // header.");
+        return ret;
+      }
+      // TODO: Info printing: printf("Flashing %d. segment\n", seg_index + 1);
+
+      ret = blisp_easy_load_segment_data(device, segment_header.length,
+                                         image_transport, progress_callback);
+      if (ret != 0) {
+        return ret;
+      }
+    }
+  }
+
+  ret = blisp_device_check_image(device);
+  if (ret != BLISP_OK) {
+    // TODO: Error printing: fprintf(stderr, "Failed to check image.\n");
+    return BLISP_EASY_ERR_CHECK_IMAGE_FAILED;
+  }
+
+  return BLISP_OK;
+}
+
+int32_t blisp_easy_load_ram_app(struct blisp_device* device,
+                                struct blisp_easy_transport* app_transport,
+                                blisp_easy_progress_callback progress_callback)
+{
+  int32_t ret;
+  // TODO: Rework
+  // region boot header fill
+  struct bfl_boot_header boot_header;
+  memcpy(boot_header.magiccode, "BFNP", 4);
+  memcpy(boot_header.flashCfg.magiccode, "FCFG", 4);
+  boot_header.revison = 0x01;
+  boot_header.flashCfg.cfg.ioMode = 0x04;
+  boot_header.flashCfg.cfg.cReadSupport = 0x01;
+  boot_header.flashCfg.cfg.clkDelay = 0x01;
+  boot_header.flashCfg.cfg.clkInvert = 0x01;
+  boot_header.flashCfg.cfg.resetEnCmd = 0x66;
+  boot_header.flashCfg.cfg.resetCmd = 0x99;
+  boot_header.flashCfg.cfg.resetCreadCmd = 0xFF;
+  boot_header.flashCfg.cfg.resetCreadCmdSize = 0x03;
+  boot_header.flashCfg.cfg.jedecIdCmd = 0x9F;
+  boot_header.flashCfg.cfg.jedecIdCmdDmyClk = 0x00;
+  boot_header.flashCfg.cfg.qpiJedecIdCmd = 0x9F;
+  boot_header.flashCfg.cfg.qpiJedecIdCmdDmyClk = 0x00;
+  boot_header.flashCfg.cfg.sectorSize = 0x04;
+  boot_header.flashCfg.cfg.mid = 0xEF;
+  boot_header.flashCfg.cfg.pageSize = 0x100;
+  boot_header.flashCfg.cfg.chipEraseCmd = 0xC7;
+  boot_header.flashCfg.cfg.sectorEraseCmd = 0x20;
+  boot_header.flashCfg.cfg.blk32EraseCmd = 0x52;
+  boot_header.flashCfg.cfg.blk64EraseCmd = 0xD8;
+  boot_header.flashCfg.cfg.writeEnableCmd = 0x06;
+  boot_header.flashCfg.cfg.pageProgramCmd = 0x02;
+  boot_header.flashCfg.cfg.qpageProgramCmd = 0x32;
+  boot_header.flashCfg.cfg.qppAddrMode = 0x00;
+  boot_header.flashCfg.cfg.fastReadCmd = 0x0B;
+  boot_header.flashCfg.cfg.frDmyClk = 0x01;
+  boot_header.flashCfg.cfg.qpiFastReadCmd = 0x0B;
+  boot_header.flashCfg.cfg.qpiFrDmyClk = 0x01;
+  boot_header.flashCfg.cfg.fastReadDoCmd = 0x3B;
+  boot_header.flashCfg.cfg.frDoDmyClk = 0x01;
+  boot_header.flashCfg.cfg.fastReadDioCmd = 0xBB;
+  boot_header.flashCfg.cfg.frDioDmyClk = 0x00;
+  boot_header.flashCfg.cfg.fastReadQoCmd = 0x6B;
+  boot_header.flashCfg.cfg.frQoDmyClk = 0x01;
+  boot_header.flashCfg.cfg.fastReadQioCmd = 0xEB;
+  boot_header.flashCfg.cfg.frQioDmyClk = 0x02;
+  boot_header.flashCfg.cfg.qpiFastReadQioCmd = 0xEB;
+  boot_header.flashCfg.cfg.qpiFrQioDmyClk = 0x02;
+  boot_header.flashCfg.cfg.qpiPageProgramCmd = 0x02;
+  boot_header.flashCfg.cfg.writeVregEnableCmd = 0x50;
+  boot_header.flashCfg.cfg.wrEnableIndex = 0x00;
+  boot_header.flashCfg.cfg.qeIndex = 0x01;
+  boot_header.flashCfg.cfg.busyIndex = 0x00;
+  boot_header.flashCfg.cfg.wrEnableBit = 0x01;
+  boot_header.flashCfg.cfg.qeBit = 0x01;
+  boot_header.flashCfg.cfg.busyBit = 0x00;
+  boot_header.flashCfg.cfg.wrEnableWriteRegLen = 0x02;
+  boot_header.flashCfg.cfg.wrEnableReadRegLen = 0x01;
+  boot_header.flashCfg.cfg.qeWriteRegLen = 0x01;
+  boot_header.flashCfg.cfg.qeReadRegLen = 0x01;
+  boot_header.flashCfg.cfg.releasePowerDown = 0xAB;
+  boot_header.flashCfg.cfg.busyReadRegLen = 0x01;
+  boot_header.flashCfg.cfg.readRegCmd[0] = 0x05;
+  boot_header.flashCfg.cfg.readRegCmd[1] = 0x35;
+  boot_header.flashCfg.cfg.readRegCmd[2] = 0x00;
+  boot_header.flashCfg.cfg.readRegCmd[3] = 0x00;
+  boot_header.flashCfg.cfg.writeRegCmd[0] = 0x01;
+  boot_header.flashCfg.cfg.writeRegCmd[1] = 0x31;
+  boot_header.flashCfg.cfg.writeRegCmd[2] = 0x00;
+  boot_header.flashCfg.cfg.writeRegCmd[3] = 0x00;
+  boot_header.flashCfg.cfg.enterQpi = 0x38;
+  boot_header.flashCfg.cfg.exitQpi = 0xFF;
+  boot_header.flashCfg.cfg.cReadMode = 0x20;
+  boot_header.flashCfg.cfg.cRExit = 0xFF;
+  boot_header.flashCfg.cfg.burstWrapCmd = 0x77;
+  boot_header.flashCfg.cfg.burstWrapCmdDmyClk = 0x03;
+  boot_header.flashCfg.cfg.burstWrapDataMode = 0x02;
+  boot_header.flashCfg.cfg.burstWrapData = 0x40;
+  boot_header.flashCfg.cfg.deBurstWrapCmd = 0x77;
+  boot_header.flashCfg.cfg.deBurstWrapCmdDmyClk = 0x03;
+  boot_header.flashCfg.cfg.deBurstWrapDataMode = 0x02;
+  boot_header.flashCfg.cfg.deBurstWrapData = 0xF0;
+  boot_header.flashCfg.cfg.timeEsector = 0x12C;
+  boot_header.flashCfg.cfg.timeE32k = 0x4B0;
+  boot_header.flashCfg.cfg.timeE64k = 0x4B0;
+  boot_header.flashCfg.cfg.timePagePgm = 0x05;
+  boot_header.flashCfg.cfg.timeCe = 0xD40;
+  boot_header.flashCfg.cfg.pdDelay = 0x03;
+  boot_header.flashCfg.cfg.qeData = 0x00;
+  boot_header.flashCfg.crc32 = 0xC4BDD748;
+  boot_header.clkCfg.cfg.xtal_type = 0x04;
+  boot_header.clkCfg.cfg.pll_clk = 0x04;
+  boot_header.clkCfg.cfg.hclk_div = 0x00;
+  boot_header.clkCfg.cfg.bclk_div = 0x01;
+  boot_header.clkCfg.cfg.flash_clk_type = 0x02;
+  boot_header.clkCfg.cfg.flash_clk_div = 0x00;
+  boot_header.clkCfg.crc32 = 0x824E14BB;
+  boot_header.bootcfg.bval.sign = 0x00;
+  boot_header.bootcfg.bval.encrypt_type = 0x00;
+  boot_header.bootcfg.bval.key_sel = 0x00;
+  boot_header.bootcfg.bval.rsvd6_7 = 0x00;
+  boot_header.bootcfg.bval.no_segment = 0x01;
+  boot_header.bootcfg.bval.cache_enable = 0x01;
+  boot_header.bootcfg.bval.notload_in_bootrom = 0x00;
+  boot_header.bootcfg.bval.aes_region_lock = 0x00;
+  boot_header.bootcfg.bval.cache_way_disable = 0x00;
+  boot_header.bootcfg.bval.crc_ignore = 0x01;
+  boot_header.bootcfg.bval.hash_ignore = 0x01;
+  boot_header.bootcfg.bval.halt_ap = 0x00;
+  boot_header.bootcfg.bval.rsvd19_31 = 0x00;
+  boot_header.segment_info.segment_cnt = 0x01;
+  boot_header.bootentry = 0x00;
+  boot_header.flashoffset = device->chip->tcm_address;
+  boot_header.hash[0x00] = 0xEF;
+  boot_header.hash[0x01] = 0xBE;
+  boot_header.hash[0x02] = 0xAD;
+  boot_header.hash[0x03] = 0xDE;
+  boot_header.hash[0x04] = 0x00;
+  boot_header.hash[0x05] = 0x00;
+  boot_header.hash[0x06] = 0x00;
+  boot_header.hash[0x07] = 0x00;
+  boot_header.hash[0x08] = 0x00;
+  boot_header.hash[0x09] = 0x00;
+  boot_header.hash[0x0a] = 0x00;
+  boot_header.hash[0x0b] = 0x00;
+  boot_header.hash[0x0c] = 0x00;
+  boot_header.hash[0x0d] = 0x00;
+  boot_header.hash[0x0e] = 0x00;
+  boot_header.hash[0x0f] = 0x00;
+  boot_header.hash[0x10] = 0x00;
+  boot_header.hash[0x11] = 0x00;
+  boot_header.hash[0x12] = 0x00;
+  boot_header.hash[0x13] = 0x00;
+  boot_header.hash[0x14] = 0x00;
+  boot_header.hash[0x15] = 0x00;
+  boot_header.hash[0x16] = 0x00;
+  boot_header.hash[0x17] = 0x00;
+  boot_header.hash[0x18] = 0x00;
+  boot_header.hash[0x19] = 0x00;
+  boot_header.hash[0x1a] = 0x00;
+  boot_header.hash[0x1b] = 0x00;
+  boot_header.hash[0x1c] = 0x00;
+  boot_header.hash[0x1d] = 0x00;
+  boot_header.hash[0x1e] = 0x00;
+  boot_header.hash[0x1f] = 0x00;
+  boot_header.rsv1 = 0x00;
+  boot_header.rsv2 = 0x00;
+  boot_header.crc32 = 0xDEADBEEF;
+  // endregion
+
+
+  ret = blisp_device_load_boot_header(device, (uint8_t*)&boot_header);
+  if (ret != BLISP_OK) {
+    blisp_dlog("Failed to load boot header, ret: %d.", ret);
+    return ret;
+  }
+
+  struct blisp_segment_header segment_header = {
+      .dest_addr = device->chip->tcm_address,
+      .length = blisp_easy_transport_size(app_transport),
+      .reserved = 0,
+      .crc32 = 0
+  };
+  segment_header.crc32 = crc32_calculate(&segment_header, 3 * sizeof(uint32_t)); // TODO: Make function
+
+  ret = blisp_device_load_segment_header(device, &segment_header);
+  if (ret != 0) {
+    blisp_dlog("Failed to load segment header, ret: %d.", ret);
+    return ret;
+  }
+
+  ret = blisp_easy_load_segment_data(device, blisp_easy_transport_size(app_transport),
+                                     app_transport, progress_callback);
+  if (ret != 0) {
+    // TODO: Error printing
+    return ret;
+  }
+
+
+  return BLISP_OK;
+}
+
+int32_t blisp_easy_flash_write(struct blisp_device* device,
+                               struct blisp_easy_transport* data_transport,
+                               uint32_t flash_location,
+                               uint32_t data_size,
+                               blisp_easy_progress_callback progress_callback) {
+  int32_t ret;
+  uint32_t sent_data = 0;
+  uint32_t buffer_size = 0;
+  uint8_t buffer[8184];
+  blisp_easy_report_progress(progress_callback, 0, data_size);
+
+  while (sent_data < data_size) {
+    buffer_size = data_size - sent_data;
+    if (buffer_size > 2052) {
+      buffer_size = 2052;
+    }
+    blisp_easy_transport_read(data_transport, buffer,
+                              buffer_size);  // TODO: Error Handling
+    ret = blisp_device_flash_write(device, flash_location + sent_data, buffer,
+                                   buffer_size);
+    if (ret < BLISP_OK) {
+      // TODO: Error logigng:  fprintf(stderr, "Failed to write firmware! (ret:
+      // %d)\n", ret);
+      return ret;
+    }
+    sent_data += buffer_size;
+    blisp_easy_report_progress(progress_callback, sent_data, data_size);
+  }
+  return BLISP_OK;
+}

lib/chip/blisp_chip_bl60x.c

@@ -1,10 +1,24 @@
 // SPDX-License-Identifier: MIT
+#include <malloc.h>
+#include <string.h>
+#include "../../data/bl60x_eflash_loader.h"
 #include "blisp.h"
 
+int64_t blisp_chip_bl60x_get_eflash_loader(uint8_t clk_type, uint8_t** firmware_buf_ptr)
+{
+  uint8_t* firmware_buf = malloc(sizeof(bl60x_eflash_loader_bin));
+  memcpy(firmware_buf, bl60x_eflash_loader_bin, sizeof(bl60x_eflash_loader_bin));
+  *(firmware_buf + 0xE0) = 4; // TODO: 40 MHz clock
+  *firmware_buf_ptr = firmware_buf;
+  return sizeof(bl60x_eflash_loader_bin);
+}
+
 struct blisp_chip blisp_chip_bl60x = {
     .type = BLISP_CHIP_BL60X,
     .type_str = "bl60x",
     .usb_isp_available = false,
-    .default_eflash_loader_xtal = "40m",
+    .default_xtal = "40m",
     .handshake_byte_multiplier = 0.006f,
+    .load_eflash_loader = blisp_chip_bl60x_get_eflash_loader,
+    .tcm_address = 0x22010000
 };

lib/chip/blisp_chip_bl61x.c

@@ -0,0 +1,11 @@
+// SPDX-License-Identifier: MIT
+#include "blisp.h"
+
+struct blisp_chip blisp_chip_bl61x = {
+    .type = BLISP_CHIP_BL61X,
+    .type_str = "bl808",
+    .usb_isp_available = true,
+    .default_xtal = "-", // ?
+    .handshake_byte_multiplier = 0.003f,
+    .get_eflash_loader = NULL
+};

lib/chip/blisp_chip_bl70x.c

@@ -1,10 +1,25 @@
 // SPDX-License-Identifier: MIT
+#include <malloc.h>
+#include <string.h>
+#include "../../data/bl70x_eflash_loader.h"
 #include "blisp.h"
 
+int64_t blisp_chip_bl70x_get_eflash_loader(uint8_t clk_type, uint8_t** firmware_buf_ptr)
+{
+  uint8_t* firmware_buf = malloc(sizeof(bl70x_eflash_loader_bin));
+  memcpy(firmware_buf, bl70x_eflash_loader_bin, sizeof(bl70x_eflash_loader_bin));
+  *(firmware_buf + 0xE0) = 1; // TODO: 32 MHz clock
+  *firmware_buf_ptr = firmware_buf;
+  return sizeof(bl70x_eflash_loader_bin);
+}
+
 struct blisp_chip blisp_chip_bl70x = {
     .type = BLISP_CHIP_BL70X,
     .type_str = "bl70x",
     .usb_isp_available = true,
-    .default_eflash_loader_xtal = "32m",
+    .default_xtal = "32m",
     .handshake_byte_multiplier = 0.003f,
+    .load_eflash_loader = blisp_chip_bl70x_get_eflash_loader,
+    .tcm_address = 0x22010000
 };
+

lib/chip/blisp_chip_bl808.c

@@ -0,0 +1,11 @@
+// SPDX-License-Identifier: MIT
+#include "blisp.h"
+
+struct blisp_chip blisp_chip_bl808 = {
+    .type = BLISP_CHIP_BL808,
+    .type_str = "bl808",
+    .usb_isp_available = true, // TODO: Only for BL808D :-(
+    .default_xtal = "-", // ?
+    .handshake_byte_multiplier = 0.003f,
+    .get_eflash_loader = NULL
+};

tools/blisp/CMakeLists.txt

@@ -1,6 +1,6 @@
 add_subdirectory(${CMAKE_SOURCE_DIR}/vendor/argtable3 ${CMAKE_CURRENT_BINARY_DIR}/argtable3)
 
-add_executable(blisp src/main.c src/cmd/write.c)
+add_executable(blisp src/main.c src/cmd/write.c src/util.c src/common.c src/cmd/iot.c)
 
 target_include_directories(blisp PRIVATE
         "${CMAKE_SOURCE_DIR}/include"
@@ -10,6 +10,8 @@ target_link_libraries(blisp PRIVATE
         argtable3
         libblisp_static)
 
-if(WIN32)
+if (WIN32)
     target_link_libraries(blisp PRIVATE Setupapi.lib)
-endif()
+elseif (APPLE)
+    target_link_libraries(blisp PRIVATE "-framework IOKit" "-framework CoreFoundation")
+endif ()

tools/blisp/src/cmd.h

@@ -13,5 +13,6 @@ struct cmd {
 };
 
 extern struct cmd cmd_write;
+extern struct cmd cmd_iot;
 
 #endif  // BLISP_CMD_H

tools/blisp/src/cmd/iot.c

@@ -0,0 +1,140 @@
+#include <blisp_easy.h>
+#include "../cmd.h"
+#include "../common.h"
+#include <argtable3.h>
+
+#define REG_EXTENDED 1
+#define REG_ICASE (REG_EXTENDED << 1)
+
+static struct arg_rex* cmd;
+static struct arg_file* single_download;
+static struct arg_int* single_download_location;
+static struct arg_str *port_name, *chip_type; // TODO: Make this common
+static struct arg_lit* reset;
+static struct arg_end* end;
+static void* cmd_iot_argtable[7];
+
+void blisp_single_download()
+{
+  struct blisp_device device;
+  int32_t ret;
+
+  if (blisp_common_init_device(&device, port_name, chip_type) != 0) {
+    return;
+  }
+
+  if (blisp_common_prepare_flash(&device) != 0) {
+    // TODO: Error handling
+    goto exit1;
+  }
+
+  FILE* data_file = fopen(single_download->filename[0], "rb");
+  if (data_file == NULL) {
+    fprintf(stderr, "Failed to open data file \"%s\".\n",
+            single_download->filename[0]);
+    goto exit1;
+  }
+  fseek(data_file, 0, SEEK_END);
+  int64_t data_file_size = ftell(data_file);
+  rewind(data_file);
+
+  printf("Erasing the area, this might take a while...\n");
+  ret =
+      blisp_device_flash_erase(&device, *single_download_location->ival,
+                               *single_download_location->ival + data_file_size + 1);
+  if (ret != BLISP_OK) {
+    fprintf(stderr, "Failed to erase.\n");
+    goto exit2;
+  }
+
+  printf("Writing the data...\n");
+  struct blisp_easy_transport data_transport =
+      blisp_easy_transport_new_from_file(data_file);
+
+  ret = blisp_easy_flash_write(&device, &data_transport, *single_download_location->ival,
+                               data_file_size,
+                               blisp_common_progress_callback);
+  if (ret < BLISP_OK) {
+    fprintf(stderr, "Failed to write data to flash.\n");
+    goto exit2;
+  }
+
+  printf("Checking program...\n");
+  ret = blisp_device_program_check(&device);
+  if (ret != BLISP_OK) {
+    fprintf(stderr, "Failed to check program.\n");
+    goto exit2;
+  }
+  printf("Program OK!\n");
+
+  if (reset->count > 0) { // TODO: could be common
+    blisp_device_reset(&device);
+    printf("Resetting the chip.\n");
+  }
+
+  printf("Download complete!\n");
+
+exit2:
+  if (data_file != NULL)
+    fclose(data_file);
+exit1:
+  blisp_device_close(&device);
+}
+
+int8_t cmd_iot_args_init() {
+  cmd_iot_argtable[0] = cmd =
+      arg_rex1(NULL, NULL, "iot", NULL, REG_ICASE, NULL);
+  cmd_iot_argtable[1] = chip_type =
+      arg_str1("c", "chip", "<chip_type>", "Chip Type");
+  cmd_iot_argtable[2] = port_name =
+      arg_str0("p", "port", "<port_name>",
+               "Name/Path to the Serial Port (empty for search)");
+  cmd_iot_argtable[3] = reset =
+      arg_lit0(NULL, "reset", "Reset chip after write");
+  cmd_iot_argtable[4] = single_download =
+      arg_file0("s", "single-down", "<file>", "Single download file");
+  cmd_iot_argtable[5] = single_download_location =
+      arg_int0("l", "single-down-loc", NULL, "Single download offset");
+  cmd_iot_argtable[6] = end = arg_end(10);
+
+  if (arg_nullcheck(cmd_iot_argtable) != 0) {
+    fprintf(stderr, "insufficient memory\n");
+    return -1;
+  }
+  return 0;
+}
+
+void cmd_iot_args_print_glossary() {
+  fputs("Usage: blisp", stdout);
+  arg_print_syntax(stdout, cmd_iot_argtable, "\n");
+  puts("Flashes firmware as Bouffalo's DevCube");
+  arg_print_glossary(stdout, cmd_iot_argtable, "  %-25s %s\n");
+}
+
+uint8_t cmd_iot_parse_exec(int argc, char** argv) {
+  int errors = arg_parse(argc, argv, cmd_iot_argtable);
+  if (errors == 0) {
+    if (single_download->count == 1 && single_download_location->count == 1) {
+      blisp_single_download();
+      return 1;
+    } else {
+      return 0;
+    }
+  } else if (cmd->count == 1) {
+    cmd_iot_args_print_glossary();
+    return 1;
+  }
+  return 0;
+}
+
+void cmd_iot_args_print_syntax() {
+  arg_print_syntax(stdout, cmd_iot_argtable, "\n");
+}
+
+void cmd_iot_free() {
+  arg_freetable(cmd_iot_argtable,
+                sizeof(cmd_iot_argtable) / sizeof(cmd_iot_argtable[0]));
+}
+
+struct cmd cmd_iot = {"iot", cmd_iot_args_init, cmd_iot_parse_exec,
+                        cmd_iot_args_print_syntax, cmd_iot_free};

tools/blisp/src/cmd/write.c

@@ -1,77 +1,28 @@
 // SPDX-License-Identifier: MIT
-#include "../cmd.h"
-#include "argtable3.h"
 #include <blisp.h>
-#include <string.h>
 #include <inttypes.h>
-#include "blisp_struct.h"
-
-#ifdef __linux__
-#include <unistd.h>
-#include <linux/limits.h>
-#elif defined(_MSC_VER)
-#include <BaseTsd.h>
-typedef SSIZE_T ssize_t;
-#include <windows.h>
-#define PATH_MAX MAX_PATH
-#endif
+#include <stdlib.h>
+#include <string.h>
+#include "../cmd.h"
+#include "../common.h"
+#include "../util.h"
+#include <argtable3.h>
+#include <blisp_easy.h>
+#include <blisp_struct.h>
 
 #define REG_EXTENDED 1
 #define REG_ICASE (REG_EXTENDED << 1)
 
 static struct arg_rex* cmd;
 static struct arg_file* binary_to_write;
-static struct arg_str* port_name, *chip_type;
+static struct arg_str *port_name, *chip_type;
 static struct arg_lit* reset;
 static struct arg_end* end;
 static void* cmd_write_argtable[6];
 
-#ifdef __APPLE__
-// Ugh. This stuff is just so messy without C++17 or Qt...
-// These are not thread safe, but it doesn't place the responsibility
-// to free an allocated buffer on the caller.nn
-#include <string.h>
-#include <assert.h>
-#include <stdlib.h>
+void fill_up_boot_header(struct bfl_boot_header* boot_header) {
+  memcpy(boot_header->magiccode, "BFNP", 4);
 
-static void get_executable_path(char* buffer_out, uint32_t max_size) {
-  assert (max_size >= PATH_MAX); // n.b. 1024 on MacOS. 4K on most Linux.
-
-  char raw_path_name[PATH_MAX];  // $HOME/../../var/tmp/x
-  char real_path_name[PATH_MAX]; // /var/tmp/x
-  uint32_t raw_path_size = sizeof(raw_path_name);
-
-  if(!_NSGetExecutablePath(raw_path_name, &raw_path_size)) {
-    realpath(raw_path_name, real_path_name);
-  }
-  // *real_path_name  is appropriately sized and null terminated.
-  strcpy(buffer_out, real_path_name);
-}
-#endif
-
-ssize_t
-get_binary_folder(char* buffer, uint32_t buffer_size) {
-#ifdef __linux__
-    if (readlink("/proc/self/exe", buffer, buffer_size) <= 0) {
-        return -1;
-    }
-    char* pos = strrchr(buffer, '/');
-#elif defined(__APPLE__)
-  get_executable_path(buffer, buffer_size);
-  char* pos = strrchr(buffer, '/');
-#else
-    if (GetModuleFileName(NULL, buffer, buffer_size) <= 0) {
-        return -1;
-    }
-    char* pos = strrchr(buffer, '\\');
-#endif
-    pos[0] = '\0';
-    return pos - buffer;
-}
-
-void fill_up_boot_header(struct bfl_boot_header* boot_header)
-{
-    memcpy(boot_header->magiccode, "BFNP", 4);;
   boot_header->revison = 0x01;
   memcpy(boot_header->flashCfg.magiccode, "FCFG", 4);
   boot_header->flashCfg.cfg.ioMode = 0x11;
@@ -214,168 +165,22 @@ void fill_up_boot_header(struct bfl_boot_header* boot_header)
 }
 
 void blisp_flash_firmware() {
-    FILE* eflash_loader_file = NULL;
-
-    if (chip_type->count == 0) {
-        fprintf(stderr, "Chip type is invalid.\n");
-        return;
-    }
-
-    struct blisp_chip* chip = NULL;
-
-    if (strcmp(chip_type->sval[0], "bl70x") == 0) {
-        chip = &blisp_chip_bl70x;
-    } else if (strcmp(chip_type->sval[0], "bl60x") == 0) {
-        chip = &blisp_chip_bl60x;
-    } else {
-        fprintf(stderr, "Chip type is invalid.\n");
-        return;
-    }
-
   struct blisp_device device;
   int32_t ret;
-    ret = blisp_device_init(&device, chip);
-    if (ret != 0) {
-        fprintf(stderr, "Failed to init device.\n");
+
+  if (blisp_common_init_device(&device, port_name, chip_type) != 0) {
     return;
   }
-    ret = blisp_device_open(&device, port_name->count == 1 ? port_name->sval[0] : NULL);
-    if (ret != 0) {
-        fprintf(stderr, "Failed to open device.\n");
-        return;
-    }
-    printf("Sending a handshake...");
-    ret = blisp_device_handshake(&device, false);
-    if (ret != 0) {
-        fprintf(stderr, "\nFailed to handshake with device.\n");
-        goto exit1;
-    }
-    printf(" OK\nGetting chip info...");
-    struct blisp_boot_info boot_info;
-    ret = blisp_device_get_boot_info(&device, &boot_info);
-    if (ret != 0) {
-        fprintf(stderr, "\nFailed to get boot info.\n");
+
+  if (blisp_common_prepare_flash(&device) != 0) {
+    // TODO: Error handling
     goto exit1;
   }
 
-    if (boot_info.boot_rom_version[0] == 255 &&
-        boot_info.boot_rom_version[1] == 255 &&
-        boot_info.boot_rom_version[2] == 255 &&
-        boot_info.boot_rom_version[3] == 255) {
-        printf(" OK\nDevice already in eflash_loader.\n");
-        goto eflash_loader;
-    }
-
-    printf(" BootROM version %d.%d.%d.%d, ChipID: %02X%02X%02X%02X%02X%02X%02X%02X\n",
-           boot_info.boot_rom_version[0],
-           boot_info.boot_rom_version[1],
-           boot_info.boot_rom_version[2],
-           boot_info.boot_rom_version[3],
-           boot_info.chip_id[0],
-           boot_info.chip_id[1],
-           boot_info.chip_id[2],
-           boot_info.chip_id[3],
-           boot_info.chip_id[4],
-           boot_info.chip_id[5],
-           boot_info.chip_id[6],
-           boot_info.chip_id[7]);
-
-    char exe_path[PATH_MAX];
-    char eflash_loader_path[PATH_MAX];
-    if (get_binary_folder(exe_path, PATH_MAX) <= 0) {
-        fprintf(stderr, "Failed to find executable path to search for the "
-                        "eflash loader\n");
-        goto exit1;
-    }
-    snprintf(eflash_loader_path, PATH_MAX, "%s/data/%s/eflash_loader_%s.bin",
-             exe_path, device.chip->type_str,
-             device.chip->default_eflash_loader_xtal);
-    printf("Loading the eflash loader file from disk\n");
-    eflash_loader_file
-        = fopen(eflash_loader_path, "rb"); // TODO: Error handling
-    if (eflash_loader_file == NULL) {
-        fprintf(stderr,
-                "Could not open the eflash loader file from disk.\n"
-                "Does \"%s\" exist?\n",
-                eflash_loader_path);
-        goto exit1;
-    }
-    uint8_t
-        eflash_loader_header[176]; // TODO: Remap it to the boot header struct
-    fread(eflash_loader_header, 176, 1,
-          eflash_loader_file); // TODO: Error handling
-
-    printf("Loading eflash_loader...\n");
-    ret = blisp_device_load_boot_header(&device, eflash_loader_header);
-    if (ret != 0) {
-        fprintf(stderr, "Failed to load boot header.\n");
-        goto exit1;
-    }
-
-    {
-        uint32_t sent_data = 0;
-        uint32_t buffer_size = 0;
-        uint8_t buffer[4092];
-
-        // TODO: Real checking of segments count
-        for (uint8_t seg_index = 0; seg_index < 1; seg_index++) {
-            struct blisp_segment_header segment_header = { 0 };
-            fread(&segment_header, 16, 1,
-                  eflash_loader_file); // TODO: Error handling
-
-            ret = blisp_device_load_segment_header(&device, &segment_header);
-            if (ret != 0) {
-                fprintf(stderr, "Failed to load segment header.\n");
-                goto exit1;
-            }
-            printf("Flashing %d. segment\n", seg_index + 1);
-            printf("0b / %" PRIu32 "b (0.00%%)\n", segment_header.length);
-
-            while (sent_data < segment_header.length) {
-                buffer_size = segment_header.length - sent_data;
-                if (buffer_size > 4092) {
-                    buffer_size = 4092;
-                }
-                fread(buffer, buffer_size, 1, eflash_loader_file);
-                ret = blisp_device_load_segment_data(
-                    &device, buffer, buffer_size); // TODO: Error handling
-                if (ret < 0) {
-                    fprintf(stderr, "Failed to load segment data. (ret %d)\n", ret);
-                    goto exit1;
-                }
-                sent_data += buffer_size;
-                printf("%" PRIu32 "b / %" PRIu32 "b (%.2f%%)\n", sent_data,
-                       segment_header.length,
-                       (((float)sent_data / (float)segment_header.length)
-                        * 100.0f));
-            }
-        }
-    }
-
-    ret = blisp_device_check_image(&device);
-    if (ret != 0) {
-        fprintf(stderr, "Failed to check image.\n");
-        goto exit1;
-    }
-
-    ret = blisp_device_run_image(&device);
-    if (ret != 0) {
-        fprintf(stderr, "Failed to run image.\n");
-        goto exit1;
-    }
-
-    printf("Sending a handshake...");
-    ret = blisp_device_handshake(&device, true);
-    if (ret != 0) {
-        fprintf(stderr, "\nFailed to handshake with device.\n");
-        goto exit1;
-    }
-    printf(" OK\n");
-
-eflash_loader:;
   FILE* firmware_file = fopen(binary_to_write->filename[0], "rb");
   if (firmware_file == NULL) {
-        fprintf(stderr,"Failed to open firmware file \"%s\".\n", binary_to_write->filename[0]);
+    fprintf(stderr, "Failed to open firmware file \"%s\".\n",
+            binary_to_write->filename[0]);
     goto exit1;
   }
   fseek(firmware_file, 0, SEEK_END);
@@ -386,57 +191,47 @@ eflash_loader:;
   fill_up_boot_header(&boot_header);
 
   const uint32_t firmware_base_address = 0x2000;
-    printf("Erasing flash, this might take a while...");
-    ret = blisp_device_flash_erase(&device, firmware_base_address,
-                                   firmware_base_address + firmware_file_size
-                                       + 1);
-    if (ret != 0) {
-        fprintf(stderr, "\nFailed to erase flash.\n");
+  printf("Erasing flash, this might take a while...\n");
+  ret =
+      blisp_device_flash_erase(&device, firmware_base_address,
+                               firmware_base_address + firmware_file_size + 1);
+  if (ret != BLISP_OK) {
+    fprintf(stderr, "Failed to erase flash.\n");
     goto exit2;
   }
-    ret = blisp_device_flash_erase(&device, 0x0000, sizeof(struct bfl_boot_header));
-    if (ret != 0) {
-        fprintf(stderr, "\nFailed to erase flash.\n");
+  ret =
+      blisp_device_flash_erase(&device, 0x0000, sizeof(struct bfl_boot_header));
+  if (ret != BLISP_OK) {
+    fprintf(stderr, "Failed to erase flash.\n");
     goto exit2;
   }
 
-    printf(" OK!\nFlashing boot header...");
-    ret = blisp_device_flash_write(&device, 0x0000, (uint8_t*)&boot_header, sizeof(struct bfl_boot_header));
-    if (ret != 0) {
-        fprintf(stderr, "\nFailed to write boot header.\n");
+  printf("Flashing boot header...\n");
+  ret = blisp_device_flash_write(&device, 0x0000, (uint8_t*)&boot_header,
+                                 sizeof(struct bfl_boot_header));
+  if (ret != BLISP_OK) {
+    fprintf(stderr, "Failed to write boot header.\n");
     goto exit2;
   }
-    printf(" OK!\nFlashing the firmware...\n");
-    {
-        uint32_t sent_data = 0;
-        uint32_t buffer_size = 0;
-        uint8_t buffer[8184];
-        printf("0b / %ldb (0.00%%)\n", firmware_file_size);
+  printf("Flashing the firmware...\n");
+  struct blisp_easy_transport data_transport =
+      blisp_easy_transport_new_from_file(firmware_file);
 
-        while (sent_data < firmware_file_size) {
-            buffer_size = firmware_file_size - sent_data;
-            if (buffer_size > 2052) {
-                buffer_size = 2052;
-            }
-            fread(buffer, buffer_size, 1, firmware_file);
-            ret = blisp_device_flash_write(&device, firmware_base_address + sent_data, buffer, buffer_size); // TODO: Error handling
-            if (ret < 0) {
-                fprintf(stderr, "Failed to write firmware! (ret: %d)\n", ret);
+  ret = blisp_easy_flash_write(&device, &data_transport, firmware_base_address,
+                               firmware_file_size,
+                               blisp_common_progress_callback);
+  if (ret < BLISP_OK) {
+    fprintf(stderr, "Failed to write app to flash.\n");
     goto exit2;
   }
-            sent_data += buffer_size;
-            printf("%" PRIu32 "b / %ldb (%.2f%%)\n", sent_data, firmware_file_size,
-                   (((float)sent_data / (float)firmware_file_size) * 100.0f));
-        }
-    }
 
-    printf("Checking program...");
+  printf("Checking program...\n");
   ret = blisp_device_program_check(&device);
-    if (ret != 0) {
-        fprintf(stderr, "\nFailed to check program.\n");
+  if (ret != BLISP_OK) {
+    fprintf(stderr, "Failed to check program.\n");
     goto exit2;
   }
-    printf("OK\n");
+  printf("Program OK!\n");
 
   if (reset->count > 0) {
     blisp_device_reset(&device);
@@ -447,22 +242,24 @@ eflash_loader:;
   printf("Flash complete!\n");
 
 exit2:
-    if (firmware_file != NULL) fclose(firmware_file);
+  if (firmware_file != NULL)
+    fclose(firmware_file);
 exit1:
-    if (eflash_loader_file != NULL) fclose(eflash_loader_file);
   blisp_device_close(&device);
 }
 
-int8_t
-cmd_write_args_init() {
-    cmd_write_argtable[0] = cmd
-        = arg_rex1(NULL, NULL, "write", NULL, REG_ICASE, NULL);
-    cmd_write_argtable[1] = chip_type = arg_str1("c", "chip", "<chip_type>", "Chip Type (bl70x)");
-    cmd_write_argtable[2] = port_name
-        = arg_str0("p", "port", "<port_name>", "Name/Path to the Serial Port (empty for search)");
-    cmd_write_argtable[3] = reset = arg_lit0(NULL, "reset", "Reset chip after write");
-    cmd_write_argtable[4] = binary_to_write
-        = arg_file1(NULL, NULL, "<input>", "Binary to write");
+int8_t cmd_write_args_init() {
+  cmd_write_argtable[0] = cmd =
+      arg_rex1(NULL, NULL, "write", NULL, REG_ICASE, NULL);
+  cmd_write_argtable[1] = chip_type =
+      arg_str1("c", "chip", "<chip_type>", "Chip Type");
+  cmd_write_argtable[2] = port_name =
+      arg_str0("p", "port", "<port_name>",
+               "Name/Path to the Serial Port (empty for search)");
+  cmd_write_argtable[3] = reset =
+      arg_lit0(NULL, "reset", "Reset chip after write");
+  cmd_write_argtable[4] = binary_to_write =
+      arg_file1(NULL, NULL, "<input>", "Binary to write");
   cmd_write_argtable[5] = end = arg_end(10);
 
   if (arg_nullcheck(cmd_write_argtable) != 0) {
@@ -474,13 +271,12 @@ cmd_write_args_init() {
 
 void cmd_write_args_print_glossary() {
   fputs("Usage: blisp", stdout);
-    arg_print_syntax(stdout,cmd_write_argtable,"\n");
+  arg_print_syntax(stdout, cmd_write_argtable, "\n");
   puts("Writes firmware to SPI Flash");
-    arg_print_glossary(stdout,cmd_write_argtable,"  %-25s %s\n");
+  arg_print_glossary(stdout, cmd_write_argtable, "  %-25s %s\n");
 }
 
-uint8_t
-cmd_write_parse_exec(int argc, char** argv) {
+uint8_t cmd_write_parse_exec(int argc, char** argv) {
   int errors = arg_parse(argc, argv, cmd_write_argtable);
   if (errors == 0) {
     blisp_flash_firmware();  // TODO: Error code?
@@ -493,14 +289,13 @@ cmd_write_parse_exec(int argc, char** argv) {
 }
 
 void cmd_write_args_print_syntax() {
-    arg_print_syntax(stdout,cmd_write_argtable,"\n");
+  arg_print_syntax(stdout, cmd_write_argtable, "\n");
 }
 
-void
-cmd_write_free() {
+void cmd_write_free() {
   arg_freetable(cmd_write_argtable,
                 sizeof(cmd_write_argtable) / sizeof(cmd_write_argtable[0]));
 }
 
-struct cmd cmd_write
-    = { "write", cmd_write_args_init, cmd_write_parse_exec, cmd_write_args_print_syntax, cmd_write_free };
+struct cmd cmd_write = {"write", cmd_write_args_init, cmd_write_parse_exec,
+                        cmd_write_args_print_syntax, cmd_write_free};

tools/blisp/src/common.c

@@ -0,0 +1,138 @@
+// SPDX-License-Identifier: MIT
+#include "common.h"
+#include <argtable3.h>
+#include <blisp.h>
+#include <inttypes.h>
+#include <malloc.h>
+#include <stdint.h>
+#include <stdio.h>
+#include <string.h>
+#include "blisp_easy.h"
+#include "util.h"
+
+void blisp_common_progress_callback(uint32_t current_value, uint32_t max_value) {
+  printf("%" PRIu32 "b / %ldb (%.2f%%)\n", current_value, max_value,
+         (((float)current_value / (float)max_value) * 100.0f));
+}
+
+int32_t blisp_common_init_device(struct blisp_device* device, struct arg_str* port_name, struct arg_str* chip_type)
+{
+  if (chip_type->count == 0) {
+    fprintf(stderr, "Chip type is invalid.\n");
+    return -1;
+  }
+
+  struct blisp_chip* chip = NULL;
+
+  if (strcmp(chip_type->sval[0], "bl70x") == 0) {
+    chip = &blisp_chip_bl70x;
+  } else if (strcmp(chip_type->sval[0], "bl60x") == 0) {
+    chip = &blisp_chip_bl60x;
+  } else {
+    fprintf(stderr, "Chip type is invalid.\n");
+    return -1;
+  }
+
+  int32_t ret;
+  ret = blisp_device_init(device, chip);
+  if (ret != BLISP_OK) {
+    fprintf(stderr, "Failed to init device.\n");
+    return -1;
+  }
+  ret = blisp_device_open(device,
+                          port_name->count == 1 ? port_name->sval[0] : NULL);
+  if (ret != BLISP_OK) {
+    fprintf(stderr, ret == BLISP_ERR_DEVICE_NOT_FOUND ? "Device not found\n" : "Failed to open device.\n");
+    return -1;
+  }
+
+  return 0;
+}
+
+/**
+ * Prepares chip to access flash
+ * this means performing handshake, and loading eflash_loader if needed.
+ */
+int32_t blisp_common_prepare_flash(struct blisp_device* device) {
+  int32_t ret = 0;
+
+  printf("Sending a handshake...\n");
+  ret = blisp_device_handshake(device, false);
+  if (ret != BLISP_OK) {
+    fprintf(stderr, "Failed to handshake with device.\n");
+    return -1;
+  }
+  printf("Handshake successful!\nGetting chip info...\n");
+  struct blisp_boot_info boot_info;
+  ret = blisp_device_get_boot_info(device, &boot_info);
+  if (ret != BLISP_OK) {
+    fprintf(stderr, "Failed to get boot info.\n");
+    return -1;
+  }
+
+  printf(
+      "BootROM version %d.%d.%d.%d, ChipID: "
+      "%02X%02X%02X%02X%02X%02X%02X%02X\n",
+      boot_info.boot_rom_version[0], boot_info.boot_rom_version[1],
+      boot_info.boot_rom_version[2], boot_info.boot_rom_version[3],
+      boot_info.chip_id[0], boot_info.chip_id[1], boot_info.chip_id[2],
+      boot_info.chip_id[3], boot_info.chip_id[4], boot_info.chip_id[5],
+      boot_info.chip_id[6], boot_info.chip_id[7]);
+
+  if (device->chip->load_eflash_loader == NULL) {
+    return 0;
+  }
+
+  if (boot_info.boot_rom_version[0] == 255 &&
+      boot_info.boot_rom_version[1] == 255 &&
+      boot_info.boot_rom_version[2] == 255 &&
+      boot_info.boot_rom_version[3] == 255) {
+    printf("Device already in eflash_loader.\n");
+    return 0;
+  }
+
+  uint8_t* eflash_loader_buffer = NULL;
+  // TODO: Error check
+  int64_t eflash_loader_buffer_length = device->chip->load_eflash_loader(0, &eflash_loader_buffer);
+
+  struct blisp_easy_transport eflash_loader_transport =
+      blisp_easy_transport_new_from_memory(eflash_loader_buffer, eflash_loader_buffer_length);
+
+  ret = blisp_easy_load_ram_app(device, &eflash_loader_transport, blisp_common_progress_callback);
+
+  if (ret != BLISP_OK) {
+    fprintf(stderr, "Failed to load eflash_loader, ret: %d\n", ret);
+    ret = -1;
+    goto exit1;
+  }
+
+  free(eflash_loader_buffer);
+  eflash_loader_buffer = NULL;
+
+  ret = blisp_device_check_image(device);
+  if (ret != 0) {
+    fprintf(stderr, "Failed to check image.\n");
+    ret = -1;
+    goto exit1;
+  }
+
+  ret = blisp_device_run_image(device);
+  if (ret != BLISP_OK) {
+    fprintf(stderr, "Failed to run image.\n");
+    ret = -1;
+    goto exit1;
+  }
+
+  printf("Sending a handshake...\n");
+  ret = blisp_device_handshake(device, true);
+  if (ret != BLISP_OK) {
+    fprintf(stderr, "Failed to handshake with device.\n");
+    ret = -1;
+    goto exit1;
+  }
+  printf("Handshake with eflash_loader successful.\n");
+exit1:
+  if (eflash_loader_buffer != NULL)
+    free(eflash_loader_buffer);
+  return ret;
+}

tools/blisp/src/common.h

@@ -0,0 +1,13 @@
+// SPDX-License-Identifier: MIT
+#ifndef BLISP_COMMON_H
+#define BLISP_COMMON_H
+
+#include <stdint.h>
+#include <blisp.h>
+#include <argtable3.h>
+
+int32_t blisp_common_prepare_flash(struct blisp_device* device);
+void blisp_common_progress_callback(uint32_t current_value, uint32_t max_value);
+int32_t blisp_common_init_device(struct blisp_device* device, struct arg_str* port_name, struct arg_str* chip_type);
+
+#endif  // BLISP_COMMON_H

tools/blisp/src/main.c

@@ -1,13 +1,11 @@
 // SPDX-License-Identifier: MIT
-#include "argtable3.h"
-#include "cmd.h"
 #include <stdbool.h>
 #include <stdint.h>
 #include <stdio.h>
+#include "argtable3.h"
+#include "cmd.h"
 
-struct cmd* cmds[] = {
-    &cmd_write
-};
+struct cmd* cmds[] = {&cmd_write, &cmd_iot};
 
 static uint8_t cmds_count = sizeof(cmds) / sizeof(cmds[0]);
 
@@ -18,7 +16,8 @@ static void* argtable[3];
 
 int8_t args_init() {
   argtable[0] = help = arg_lit0(NULL, "help", "print this help and exit");
-    argtable[1] = version = arg_lit0(NULL, "version", "print version information and exit");
+  argtable[1] = version =
+      arg_lit0(NULL, "version", "print version information and exit");
   argtable[2] = end = arg_end(20);
 
   if (arg_nullcheck(argtable) != 0) {
@@ -36,7 +35,7 @@ void print_help() {
     cmds[i]->args_print_syntax();
   }
   fputs("  blisp", stdout);
-    arg_print_syntax(stdout, argtable,"\n");
+  arg_print_syntax(stdout, argtable, "\n");
 }
 
 int8_t args_parse_exec(int argc, char** argv) {
@@ -46,8 +45,8 @@ int8_t args_parse_exec(int argc, char** argv) {
       print_help();
       return 1;
     } else if (version->count) {
-            printf("blisp 1.0.0\n");
-            printf("Copyright (C) 2022 Marek Kraus and PINE64 Community\n");
+      printf("blisp 0.0.1\n");
+      printf("Copyright (C) 2023 Marek Kraus and PINE64 Community\n");
       return 1;
     }
   }
@@ -58,8 +57,7 @@ void args_free() {
   arg_freetable(argtable, sizeof(argtable) / sizeof(argtable[0]));
 }
 
-int
-main(int argc, char** argv) {
+int main(int argc, char** argv) {
   int exit_code = 0;
 
   if (args_init() != 0) {

tools/blisp/src/util.c

@@ -0,0 +1,44 @@
+// SPDX-License-Identifier: MIT
+#include "util.h"
+#include <stdio.h>
+#include <stdint.h>
+#include <string.h>
+
+#ifdef __APPLE__
+// Ugh. This stuff is just so messy without C++17 or Qt...
+// These are not thread safe, but it doesn't place the responsibility
+// to free an allocated buffer on the caller.nn
+
+static void util_get_executable_path(char* buffer_out, uint32_t max_size) {
+  assert(max_size >= PATH_MAX);  // n.b. 1024 on MacOS. 4K on most Linux.
+
+  char raw_path_name[PATH_MAX];   // $HOME/../../var/tmp/x
+  char real_path_name[PATH_MAX];  // /var/tmp/x
+  uint32_t raw_path_size = sizeof(raw_path_name);
+
+  if (!_NSGetExecutablePath(raw_path_name, &raw_path_size)) {
+    realpath(raw_path_name, real_path_name);
+  }
+  // *real_path_name  is appropriately sized and null terminated.
+  strcpy(buffer_out, real_path_name);
+}
+#endif
+
+ssize_t util_get_binary_folder(char* buffer, uint32_t buffer_size) {
+#ifdef __linux__
+  if (readlink("/proc/self/exe", buffer, buffer_size) <= 0) {
+    return -1;
+  }
+  char* pos = strrchr(buffer, '/');
+#elif defined(__APPLE__)
+  util_get_executable_path(buffer, buffer_size);
+  char* pos = strrchr(buffer, '/');
+#else
+  if (GetModuleFileName(NULL, buffer, buffer_size) <= 0) {
+    return -1;
+  }
+  char* pos = strrchr(buffer, '\\');
+#endif
+  pos[0] = '\0';
+  return pos - buffer;
+}

tools/blisp/src/util.h

@@ -0,0 +1,26 @@
+// SPDX-License-Identifier: MIT
+#ifndef BLISP_UTIL_H
+#define BLISP_UTIL_H
+
+#include <stdint.h>
+
+#ifdef __linux__
+#include <unistd.h>
+#elif defined(_MSC_VER)
+#include <BaseTsd.h>
+typedef SSIZE_T ssize_t;
+#include <windows.h>
+#define PATH_MAX MAX_PATH
+#elif defined(__APPLE__)
+#include <sys/syslimits.h>
+#include <assert.h>
+#endif
+
+#ifdef __linux__
+#include <linux/limits.h>
+#endif
+
+ssize_t util_get_binary_folder(char* buffer, uint32_t buffer_size);
+
+
+#endif