ext: Add official ST library for vl53l1x

This package contains platform independent drivers written in C
language for STMicroelectronics ToF sensors VL53L1X. The aim of
this package is to provide a common, clean and stable interface
to get ranging data.

Library is located in ext/hal/st/lib/sensor/vl53l1x

Origin: ST Microelectronics
License: BSD-3-Clause
URL: http://www.st.com/en/embedded-software/stsw-img007.html
Commit: v2.3.3
Purpose: provide a common and stable i/f to get ranging data
Maintained-by: ST Microelectronics

Signed-off-by: Aaron Tsui <[email protected]>

Author: overheat

ext/hal/st/lib/CMakeLists.txt

@@ -10,13 +10,33 @@ if(CONFIG_HAS_STLIB)
 	sensor/vl53l0x/api/core/inc
 	${PROJECT_SOURCE_DIR}/drivers/sensor/vl53l0x
     )
-
     zephyr_sources(sensor/vl53l0x/api/core/src/vl53l0x_api.c)
     zephyr_sources(sensor/vl53l0x/api/core/src/vl53l0x_api_ranging.c)
     zephyr_sources(sensor/vl53l0x/api/core/src/vl53l0x_api_calibration.c)
     zephyr_sources(sensor/vl53l0x/api/core/src/vl53l0x_api_core.c)
     zephyr_sources(sensor/vl53l0x/api/core/src/vl53l0x_api_strings.c)
   endif()
+
+  if(CONFIG_VL53L1X)
+    zephyr_include_directories(
+	sensor/vl53l1x/api/core/inc
+	${PROJECT_SOURCE_DIR}/drivers/sensor/vl53l1x
+    )
+
+    zephyr_sources(sensor/vl53l1x/api/core/src/vl53l1_core.c)
+    zephyr_sources(sensor/vl53l1x/api/core/src/vl53l1_silicon_core.c)
+    zephyr_sources(sensor/vl53l1x/api/core/src/vl53l1_core_support.c)
+    zephyr_sources(sensor/vl53l1x/api/core/src/vl53l1_api.c)
+    zephyr_sources(sensor/vl53l1x/api/core/src/vl53l1_api_core.c)
+    zephyr_sources(sensor/vl53l1x/api/core/src/vl53l1_api_calibration.c)
+    zephyr_sources(sensor/vl53l1x/api/core/src/vl53l1_api_debug.c)
+    zephyr_sources(sensor/vl53l1x/api/core/src/vl53l1_api_strings.c)
+    zephyr_sources(sensor/vl53l1x/api/core/src/vl53l1_api_preset_modes.c)
+    zephyr_sources(sensor/vl53l1x/api/core/src/vl53l1_wait.c)
+    zephyr_sources(sensor/vl53l1x/api/core/src/vl53l1_error_strings.c)
+    zephyr_sources(sensor/vl53l1x/api/core/src/vl53l1_register_funcs.c)
+  endif()
+
   if(CONFIG_AUDIO_MPXXDTYY)
     zephyr_include_directories(audio/microphone)
     zephyr_sources(audio/microphone/OpenPDMFilter.c)

ext/hal/st/lib/Kconfig

@@ -1,6 +1,10 @@
 # Kconfig - STLIB config
-
-# Copyright (c) 2017 STMicroelectronics
+#
+# Copyright (c) 2019 STMicroelectronics
+#
+# SPDX-License-Identifier: Apache-2.0
 
 config HAS_STLIB
     bool
+    imply NEWLIB_LIBC
+    imply NEWLIB_LIBC_FLOAT_PRINTF

ext/hal/st/lib/README

@@ -5,4 +5,7 @@ Available libs:
   * sensor/vl53l0x:
       allows to drive the vl53l0x sensor
       full information can be found here : http://www.st.com/en/embedded-software/stsw-img005.html
+  * sensor/vl53l1x:
+      allows to drive the vl53l1x sensor
+      full information can be found here : http://www.st.com/en/embedded-software/stsw-img007.html
   * ...

ext/hal/st/lib/sensor/vl53l1x/README

@@ -0,0 +1,52 @@
+VL53L1X
+#######
+
+Origin:
+   ST Microelectronics
+   http://www.st.com/en/embedded-software/stsw-img007.html
+
+Status:
+   version 2.3.3
+
+Purpose:
+   ST Microelectonics official API to use vl53l1x sensor.
+
+Description:
+   This library written by STMicroelectronics is dedicated to vl53l1x time of flight sensor.
+   Instead of providing a full description of the registers, ST decided to provide a C library to drive this sensor.
+
+   This library is called from the vl53l1x driver and is kept transparent for user.
+   User is calling a standard Zephyr driver and then, the driver makes some calls to this library.
+
+   In order to fit with Zephyr rules and simplify version updates, we have done a minimum of modifications :
+      - keep only API directory
+        (remove documentation and samples, see ST website for this)
+      - rename Api to api
+      - customize api/platform to fit in Zephyr (mainly for I2C access)
+        vl53l1x_platform.c and other platform related files have been moved to Zephyr drivers directory.
+
+   In order to use this library, you have to :
+      * define CONFIG_HAS_STLIB and CONFIG_VL53L1X
+      * include vl53l1x_api.h and vl53l1x_platform.h in the driver.h
+
+Dependencies:
+   This package depends on Zephyr I2C implementation and is linked statically.
+   This library will be used by a standard Zephyr driver.
+
+URL:
+   http://www.st.com/en/embedded-software/stsw-img007.html
+
+commit:
+   version 2.3.3 
+
+Maintained-by:
+   External
+
+License:
+   BSD-3-Clause
+
+License Link:
+   http://www.st.com/en/embedded-software/stsw-img007.html
+
+
+