[TI] CC13xx Factory Data Tool (#31117)

* dac tool functionally working for cc13x2 and cc13x4 * updated documentation, added dac tool to all examples * removed old memmap image * code clean up * updated cc13x4 memmap * more code cleanup * added in Thor modifications to oad and factory data merge tool python script * ti_simplelink_executable.gni fix * factory data overlap in ota merge tool fixed * added debug statement in ti simplelink exec * added in custom factory data flag to pump controller * added public creds header files * code review updates and cc13x2 em file fix * fixed pump controller app build issues when using factory data * added back in ota linker file for cc13x4 * spelling fixes * Restyled by whitespace * Restyled by clang-format * Restyled by prettier-markdown * Restyled by autopep8 * Restyled by isort * spelling fix * Restyled by prettier-markdown * pr review feedback * Restyled by clang-format * more pr feedback * empty commit --------- Co-authored-by: Restyled.io <[email protected]>
project-chip · Apr 16, 2024 · 4660035 · 4660035
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diff --git a/docs/guides/ti/images/cc13x2_memmap.png b/docs/guides/ti/images/cc13x2_memmap.png
diff --git a/docs/guides/ti/images/cc13x4_memmap.png b/docs/guides/ti/images/cc13x4_memmap.png
diff --git a/docs/guides/ti/images/factory_data_overview.png b/docs/guides/ti/images/factory_data_overview.png
diff --git a/docs/guides/ti/ti_factory_data_user_guide.md b/docs/guides/ti/ti_factory_data_user_guide.md
@@ -0,0 +1,127 @@
+# Texas Instruments Matter Factory Data Programming User Guide
+
+This document describes how to use the factory data programming feature for
+Matter example applications from Texas Instruments.
+
+## Background
+
+The Matter specification lists various information elements that are programmed
+at the factory. These values do not change and some are unique per device. This
+feature enables customers developing Matter products on TI devices to program
+this data and use this as a starting point towards developing their factory
+programming infrastructure for their Matter devices.
+
+## Solution Overview:
+
+TI Matter examples allow the use of factory data in the following two ways:
+
+-   **Example Out of Box Factory Data** : Use TI example DAC values to get
+    started. This is intended to be used when just starting with Matter or
+    during development until customer or product specific data is not required.
+-   **Custom factory data** : Allows users to configure custom factory data via
+    a JSON file. The custom values are then processed by a script provided by TI
+    and merged with the Matter application to create a binary that can be
+    flashed on to devices.
+
+### Solution Block Diagram
+
+![Block Diagram](images/factory_data_overview.png)
+
+Each element is described in more detail below:
+
+1. Factory Data JSON: This file is located at src/platform/cc13xx_26xx.
+   Developers can configure this per device. Elements in this file are from the
+   specification.
+2. Matter Application with dummy factory data: Any TI Matter example application
+3. `BIM`/MCUBoot: Boot Image Manager/MCUBoot image used for OTA. This is built
+   with the Matter application and does not require additional build steps from
+   developers.
+4. create_factory_data.py: Processes a factory data JSON file and generates a
+   hex file with the unique factory data values configured in the JSON file.
+5. factory_data_trim.py: When using the custom factory data option, this script
+   removes the dummy factory data which is required to be able to successfully
+   compile the application.
+6. `oad`\_and_factory_data_merge_tool.py: Merges the factory data hex, Matter
+   application without factory data and `BIM`/MCUBoot image to generate a
+   functional hex that can be programmed onto the device.
+
+## Flash memory layout
+
+![Memory Layout 1](images/cc13x2_memmap.png)
+
+![Memory Layout 2](images/cc13x4_memmap.png)
+
+## How to use
+
+Out of box factory data location is configured to be on second last page of
+flash. For CC13x2, the starting address is `0xAC000`. For CC13x4, the starting
+address is `0xFE800`. This can be configured in the linker file.
+
+To configure:
+
+1. Linker file: Set the start address for factory data in the linker file being
+   used by the application
+
+```
+FLASH_FACTORY_DATA (R)  : ORIGIN = 0x000ac000, LENGTH = 0x00000900
+```
+
+```
+/* Define base address for the DAC arrays and struct */
+    PROVIDE (_factory_data_base_address =
+        DEFINED(_factory_data_base_address) ? _factory_data_base_address : 0xAC000);
+```
+
+2. create_factory_data.py: Set the address of the start of the factory data
+   elements. Refer to the comments in the script.
+
+```
+    # there are 17 elements, each element will need 8 bytes in the struct
+    # 4 for length of the element, and 4 for the pointer to the element
+    # factory data starts at 0xAC000 or 0xFE800, so the elements will
+    # start 136 bytes after the start address
+    factory_data_dict = json.load(args.factory_data_json_file[0])
+    factory_data_schema = json.load(args.factory_data_schema[0])
+
+    validate(factory_data_dict, factory_data_schema)
+    factory_data = factory_data_dict['elements']
+
+    struct_idx = 0
+    values_idx = 0
+    if device_family == 'cc13x2_26x2':
+        value_address = 0xAC088
+    else:
+        value_address = 0xFE888
+```
+
+```
+    if device_family == 'cc13x2_26x2':
+        subprocess.call(['objcopy', 'temp.bin','--input-target','binary','--output-target', 'ihex', args.factory_data_hex_file, '--change-addresses=0xac000'])
+    else:
+        subprocess.call(['objcopy', 'temp.bin','--input-target','binary','--output-target', 'ihex', args.factory_data_hex_file, '--change-addresses=0xfe800'])
+```
+
+3. In the example's args.gni file, set 'custom_factory_data' to true
+
+It is recommended to keep a dedicated page (2 pages for CC13x4) for factory
+data.
+
+### Formatting certs and keys for JSON file
+
+To format the DAC, private key and PAI as hex strings as shown in the Factory
+Data JSON file, use the chip-cert tool located at src/tools/chip-cert and run
+the _convert-cert_ command, and list -X, or X.509 DER hex encoded format, as the
+output format. These strings can then be copied into the JSON file.
+
+The SPAKE parameters should be converted from base-64 to hex as well before
+being copied into the JSON file.
+
+### Creating images
+
+The example application can be built using the instructions in the example's
+README. The factory data from the JSON file will be formatted into a hex file
+that will then be merged into the final executable. The final executable will be
+named _{example-application}-`bim`.hex_ for CC13x2 and
+_{example-application}-mcuboot.hex_ for CC13x4, and the factory data that was
+inputted into the JSON file will be named
+_{example-application}-factory-data.hex_.
diff --git a/examples/all-clusters-app/cc13x2x7_26x2x7/BUILD.gn b/examples/all-clusters-app/cc13x2x7_26x2x7/BUILD.gn
@@ -108,6 +108,10 @@ ti_simplelink_executable("all-clusters-app") {
     deps += [ "${chip_root}/third_party/openthread/repo:libopenthread-mtd" ]
   }
 
+  if (custom_factory_data) {
+    defines = [ "CC13XX_26XX_FACTORY_DATA" ]
+  }
+
   include_dirs = [
     "${project_dir}",
     "${project_dir}/main",

diff --git a/examples/all-clusters-app/cc13x2x7_26x2x7/args.gni b/examples/all-clusters-app/cc13x2x7_26x2x7/args.gni
@@ -50,3 +50,5 @@ matter_device_vid = "0xFFF1"
 matter_device_pid = "0x8006"
 matter_software_ver = "0x0001"
 matter_software_ver_str = "1.0d1"
+
+custom_factory_data = true
diff --git a/examples/all-clusters-app/cc13x2x7_26x2x7/main/AppTask.cpp b/examples/all-clusters-app/cc13x2x7_26x2x7/main/AppTask.cpp
@@ -230,6 +230,19 @@ int AppTask::Init()
             ;
     }
 
+    // Initialize device attestation config
+#ifdef CC13X2_26X2_ATTESTATION_CREDENTIALS
+#ifdef CC13XX_26XX_FACTORY_DATA
+    SetDeviceInstanceInfoProvider(&mFactoryDataProvider);
+    SetDeviceAttestationCredentialsProvider(&mFactoryDataProvider);
+    SetCommissionableDataProvider(&mFactoryDataProvider);
+#else
+    SetDeviceAttestationCredentialsProvider(CC13X2_26X2::GetCC13X2_26X2DacProvider());
+#endif
+#else
+    SetDeviceAttestationCredentialsProvider(Examples::GetExampleDACProvider());
+#endif
+
     ret = PlatformMgr().StartEventLoopTask();
     if (ret != CHIP_NO_ERROR)
     {
@@ -259,9 +272,6 @@ int AppTask::Init()
 
     ConfigurationMgr().LogDeviceConfig();
 
-    // Initialize device attestation config
-    SetDeviceAttestationCredentialsProvider(Examples::GetExampleDACProvider());
-
     // We only have network commissioning on endpoint 0.
     emberAfEndpointEnableDisable(kNetworkCommissioningEndpointSecondary, false);
 

diff --git a/examples/all-clusters-app/cc13x2x7_26x2x7/main/include/AppTask.h b/examples/all-clusters-app/cc13x2x7_26x2x7/main/include/AppTask.h
@@ -30,6 +30,10 @@
 
 #include <ti/drivers/apps/Button.h>
 
+#ifdef CC13XX_26XX_FACTORY_DATA
+#include <platform/cc13xx_26xx/FactoryDataProvider.h>
+#endif
+
 class AppTask
 {
 public:
@@ -62,6 +66,10 @@ class AppTask
     bool mFunctionTimerActive;
 
     static AppTask sAppTask;
+
+#ifdef CC13XX_26XX_FACTORY_DATA
+    chip::DeviceLayer::FactoryDataProvider mFactoryDataProvider;
+#endif
 };
 
 inline AppTask & GetAppTask(void)

diff --git a/examples/all-clusters-app/cc13x4_26x4/BUILD.gn b/examples/all-clusters-app/cc13x4_26x4/BUILD.gn
@@ -112,6 +112,10 @@ ti_simplelink_executable("all-clusters-app") {
     deps += [ "${chip_root}/third_party/openthread/repo:libopenthread-mtd" ]
   }
 
+  if (custom_factory_data) {
+    defines = [ "CC13XX_26XX_FACTORY_DATA" ]
+  }
+
   include_dirs = [
     "${project_dir}",
     "${project_dir}/main",

diff --git a/examples/all-clusters-app/cc13x4_26x4/args.gni b/examples/all-clusters-app/cc13x4_26x4/args.gni
@@ -50,3 +50,5 @@ matter_device_vid = "0xFFF1"
 matter_device_pid = "0x8006"
 matter_software_ver = "0x0001"
 matter_software_ver_str = "1.0.1+1"
+
+custom_factory_data = true
diff --git a/examples/all-clusters-app/cc13x4_26x4/main/AppTask.cpp b/examples/all-clusters-app/cc13x4_26x4/main/AppTask.cpp
@@ -246,6 +246,19 @@ int AppTask::Init()
             ;
     }
 
+// Initialize device attestation config
+#ifdef CC13X4_26X4_ATTESTATION_CREDENTIALS
+#ifdef CC13XX_26XX_FACTORY_DATA
+    SetDeviceInstanceInfoProvider(&mFactoryDataProvider);
+    SetDeviceAttestationCredentialsProvider(&mFactoryDataProvider);
+    SetCommissionableDataProvider(&mFactoryDataProvider);
+#else
+    SetDeviceAttestationCredentialsProvider(CC13X4_26X4::GetCC13X4_26X4DacProvider());
+#endif
+#else
+    SetDeviceAttestationCredentialsProvider(Examples::GetExampleDACProvider());
+#endif
+
     // Init ZCL Data Model and start server
     PLAT_LOG("Initialize Server");
     static chip::CommonCaseDeviceServerInitParams initParams;
@@ -259,13 +272,6 @@ int AppTask::Init()
 
     ConfigurationMgr().LogDeviceConfig();
 
-    // Initialize device attestation config
-#ifdef CC13X4_26X4_ATTESTATION_CREDENTIALS
-    SetDeviceAttestationCredentialsProvider(CC13X4_26X4::GetCC13X4_26X4DacProvider());
-#else
-    SetDeviceAttestationCredentialsProvider(Examples::GetExampleDACProvider());
-#endif
-
     // We only have network commissioning on endpoint 0.
     emberAfEndpointEnableDisable(kNetworkCommissioningEndpointSecondary, false);
 

diff --git a/examples/all-clusters-app/cc13x4_26x4/main/include/AppTask.h b/examples/all-clusters-app/cc13x4_26x4/main/include/AppTask.h
@@ -30,6 +30,10 @@
 
 #include <ti/drivers/apps/Button.h>
 
+#ifdef CC13XX_26XX_FACTORY_DATA
+#include <platform/cc13xx_26xx/FactoryDataProvider.h>
+#endif
+
 class AppTask
 {
 public:
@@ -62,6 +66,10 @@ class AppTask
     bool mFunctionTimerActive;
 
     static AppTask sAppTask;
+
+#ifdef CC13XX_26XX_FACTORY_DATA
+    chip::DeviceLayer::FactoryDataProvider mFactoryDataProvider;
+#endif
 };
 
 inline AppTask & GetAppTask(void)

diff --git a/examples/lighting-app/cc13x2x7_26x2x7/BUILD.gn b/examples/lighting-app/cc13x2x7_26x2x7/BUILD.gn
@@ -91,6 +91,10 @@ ti_simplelink_executable("lighting_app") {
     deps += [ "${chip_root}/third_party/openthread/repo:libopenthread-mtd" ]
   }
 
+  if (custom_factory_data) {
+    defines = [ "CC13XX_26XX_FACTORY_DATA" ]
+  }
+
   include_dirs = [
     "${project_dir}",
     "${chip_root}/examples/providers/",

diff --git a/examples/lighting-app/cc13x2x7_26x2x7/args.gni b/examples/lighting-app/cc13x2x7_26x2x7/args.gni
@@ -49,3 +49,5 @@ matter_device_vid = "0xFFF1"
 matter_device_pid = "0x8005"
 matter_software_ver = "0x0001"
 matter_software_ver_str = "1.0d1"
+
+custom_factory_data = true
diff --git a/examples/lighting-app/cc13x2x7_26x2x7/src/AppTask.cpp b/examples/lighting-app/cc13x2x7_26x2x7/src/AppTask.cpp
@@ -180,6 +180,19 @@ int AppTask::Init()
             ;
     }
 
+    // Initialize device attestation config
+#ifdef CC13X2_26X2_ATTESTATION_CREDENTIALS
+#ifdef CC13XX_26XX_FACTORY_DATA
+    SetDeviceInstanceInfoProvider(&mFactoryDataProvider);
+    SetDeviceAttestationCredentialsProvider(&mFactoryDataProvider);
+    SetCommissionableDataProvider(&mFactoryDataProvider);
+#else
+    SetDeviceAttestationCredentialsProvider(CC13X2_26X2::GetCC13X2_26X2DacProvider());
+#endif
+#else
+    SetDeviceAttestationCredentialsProvider(Examples::GetExampleDACProvider());
+#endif
+
     ret = ThreadStackMgr().InitThreadStack();
     if (ret != CHIP_NO_ERROR)
     {
@@ -226,13 +239,6 @@ int AppTask::Init()
 
     Server::GetInstance().Init(initParams);
 
-    // Initialize device attestation config
-#ifdef CC13X2_26X2_ATTESTATION_CREDENTIALS
-    SetDeviceAttestationCredentialsProvider(CC13X2_26X2::GetCC13X2_26X2DacProvider());
-#else
-    SetDeviceAttestationCredentialsProvider(Examples::GetExampleDACProvider());
-#endif
-
     // Initialize LEDs
     PLAT_LOG("Initialize LEDs");
     LED_init();

diff --git a/examples/lighting-app/cc13x2x7_26x2x7/src/AppTask.h b/examples/lighting-app/cc13x2x7_26x2x7/src/AppTask.h
@@ -30,6 +30,10 @@
 
 #include <ti/drivers/apps/Button.h>
 
+#ifdef CC13XX_26XX_FACTORY_DATA
+#include <platform/cc13xx_26xx/FactoryDataProvider.h>
+#endif
+
 // Application-defined error codes in the CHIP_ERROR space.
 #define APP_ERROR_EVENT_QUEUE_FAILED CHIP_APPLICATION_ERROR(0x01)
 #define APP_ERROR_CREATE_TASK_FAILED CHIP_APPLICATION_ERROR(0x02)
@@ -85,6 +89,10 @@ class AppTask
     bool mFunctionTimerActive;
 
     static AppTask sAppTask;
+
+#ifdef CC13XX_26XX_FACTORY_DATA
+    chip::DeviceLayer::FactoryDataProvider mFactoryDataProvider;
+#endif
 };
 
 inline AppTask & GetAppTask(void)

diff --git a/examples/lighting-app/cc13x4_26x4/BUILD.gn b/examples/lighting-app/cc13x4_26x4/BUILD.gn
@@ -99,6 +99,10 @@ ti_simplelink_executable("lighting_app") {
     deps += [ "${chip_root}/third_party/openthread/repo:libopenthread-mtd" ]
   }
 
+  if (custom_factory_data) {
+    defines = [ "CC13XX_26XX_FACTORY_DATA" ]
+  }
+
   include_dirs = [
     "${project_dir}",
     "${chip_root}/examples/providers/",

diff --git a/examples/lighting-app/cc13x4_26x4/args.gni b/examples/lighting-app/cc13x4_26x4/args.gni
@@ -48,3 +48,5 @@ matter_device_vid = "0xFFF1"
 matter_device_pid = "0x8005"
 matter_software_ver = "0x0001"
 matter_software_ver_str = "1.0.1+1"
+
+custom_factory_data = true
diff --git a/examples/lighting-app/cc13x4_26x4/src/AppTask.cpp b/examples/lighting-app/cc13x4_26x4/src/AppTask.cpp
@@ -214,6 +214,19 @@ int AppTask::Init()
             ;
     }
 
+    // Initialize device attestation config
+#ifdef CC13X4_26X4_ATTESTATION_CREDENTIALS
+#ifdef CC13XX_26XX_FACTORY_DATA
+    SetDeviceInstanceInfoProvider(&mFactoryDataProvider);
+    SetDeviceAttestationCredentialsProvider(&mFactoryDataProvider);
+    SetCommissionableDataProvider(&mFactoryDataProvider);
+#else
+    SetDeviceAttestationCredentialsProvider(CC13X4_26X4::GetCC13X4_26X4DacProvider());
+#endif
+#else
+    SetDeviceAttestationCredentialsProvider(Examples::GetExampleDACProvider());
+#endif
+
     // Init ZCL Data Model and start server
     PLAT_LOG("Initialize Server");
     static CommonCaseDeviceServerInitParams initParams;
@@ -225,13 +238,6 @@ int AppTask::Init()
 
     Server::GetInstance().Init(initParams);
 
-    // Initialize device attestation config
-#ifdef CC13X4_26X4_ATTESTATION_CREDENTIALS
-    SetDeviceAttestationCredentialsProvider(CC13X4_26X4::GetCC13X4_26X4DacProvider());
-#else
-    SetDeviceAttestationCredentialsProvider(Examples::GetExampleDACProvider());
-#endif
-
     // Initialize LEDs
     PLAT_LOG("Initialize LEDs");
     LED_init();