softdevice_controller: rev 11f5e5d895cf2408403e58341e8c07f0baa5b4ef

CHANGELOG.rst contains the list of changes.

Signed-off-by: Yuxuan Cai <yuxuan.cai@nordicsemi.no>

Author: yuxCai

softdevice_controller/CHANGELOG.rst

@@ -9,13 +9,33 @@ Changelog
 
 All the notable changes to this project are documented on this page.
 
+Main branch
+***********
+
+Changes
+=======
+
+* The CIS or BIS sink now generate lost SDUs immediately when scheduling conflicts occur instead of after receiving the next valid SDU. (DRGN-24062)
+
 nRF Connect SDK v2.9.0
 **********************
 
 Added
 =====
 
 * Production support for scanning and initiating at the same time. (DRGN-23824)
+* :ref:`Experimental <nrf:software_maturity>` support for Channel Sounding step mode-3.
+* :ref:`Experimental <nrf:software_maturity>` support for Channel Sounding multiple antenna elements.
+* :ref:`Experimental <nrf:software_maturity>` support for the following Channel Sounding HCI commands:
+
+    * LE CS Write Cached Remote Supported Capabilities
+    * LE CS Write Cached Remote FAE Table
+    * LE CS Remove Config
+
+Changes
+=======
+
+* The vendor-specific Set Connection Event Trigger HCI command has been removed. (DRGN-23981)
 
 Bug fixes
 =========
@@ -25,6 +45,7 @@ Bug fixes
   The issue would only happen when the scanner received a long extended advertising packet that did not fit into a single advertising report and the scanning was stopped explicitly or through a timeout. (DRGN-23966)
 * Fixed an issue where the CIS TX Power was set according to the LE Power Control state of the previous CIS in a CIG. (DRGN-21721)
 * Fixed an issue where the BIS receiver running with FEM could enable the radio at the wrong time, causing the receiver to drop packets and lose sync. (DRGN-23891)
+* Fixed an issue where the controller would raise Number Of Completed Packets events for a disconnected CIS. (DRGN-23869)
 
 nRF Connect SDK v2.8.0
 **********************

softdevice_controller/doc/channel_sounding.rst

@@ -11,37 +11,128 @@ LE Channel Sounding (CS) is a feature defined in the `Bluetooth Core Specificati
 CS allows two devices in a connection to perform measurements of their communication channel, both the round trip time (RTT), and the phase and magnitude (as in-phase and quadrature (IQ) values) can be measured.
 The RTT and IQ values can then be sent to an application to calculate the distance between devices.
 
+Support status
+**************
+
 Channel Sounding currently has :ref:`Experimental <nrf:software_maturity>` support in the |controller| for the nRF54L15 SoC.
 CS can be enabled by building with the :kconfig:option:`CONFIG_BT_CTLR_CHANNEL_SOUNDING` Kconfig option enabled.
 
-Developing with CS
-******************
-
-Currently, the :zephyr:code-sample:`bluetooth_hci_uart` sample is recommended to get started with Channel Sounding.
-Build the sample with the following command to enable the CS feature:
+Command support
+---------------
 
-.. code-block:: console
-
-   west build -b nrf54l15dk/nrf54l15/cpuapp --pristine -- -DCONFIG_BT_CTLR_CHANNEL_SOUNDING=y
-
-You can use the sample to run the following supported HCI commands over UART:
+The following LE CS commands are supported:
 
  * LE CS Read Local Supported Capabilities
  * LE CS Read Remote Supported Capabilities
+ * LE CS Write Cached Remote Supported Capabilities
  * LE CS Security Enable
  * LE CS Set Default Settings
  * LE CS Read Remote FAE Table
+ * LE CS Write Cached Remote FAE Table
  * LE CS Create Config
+ * LE CS Remove Config
  * LE CS Set Channel Classification
  * LE CS Set Procedure Parameters
  * LE CS Procedure Enable
  * LE CS Test
  * LE CS Test End
 
-Experimental Limitations
-************************
+Supported capabilities
+----------------------
+
+The |controller| currently has the following supported capabilities:
+
+ * One CS Configuration per ACL connection.
+ * Indefinite Procedure Repeats.
+ * Four Antennas and Four Antenna Paths.
+ * CS Reflector and CS Initiator Roles.
+ * Step modes 1, 2, and 3.
+ * 150 ns time-of-flight precision
+ * RTT with AA-only and 32, 64, 96, and 128 bits random payloads
+ * 1M and 2M CS Sync Phy
+ * No Transmitter Frequency Actuation Error
+
+The supported timing values for the |controller| are as follows:
+
+ * A T_IP1 of 60 µs or greater.
+ * A T_IP2 of 30 µs or greater.
+ * A T_FCS of 60 µs or greater.
+ * A T_PM of 10 µs or greater.
+ * A T_SW of 10 µs.
+
+Multiple antennas support
+-------------------------
+
+Currently, the |controller| supports multiple antennas with a fixed pinout for the multi-antenna switch.
+In order to use the |controller| with multiple antennas, an external GPIO controlled multi-antenna switch needs to be set up with the following truth table:
+
+.. list-table:: Antenna control for multi-antenna switching.
+   :widths: 30 5 5 5 5
+   :header-rows: 1
+
+   * - Active Antenna:
+     - **P1.11**
+     - **P1.12**
+     - **P1.13**
+     - **P1.14**
+   * - Antenna 1
+     - 1
+     - 0
+     - 0
+     - 0
+   * - Antenna 2
+     - 0
+     - 1
+     - 0
+     - 0
+   * - Antenna 3
+     - 0
+     - 0
+     - 1
+     - 0
+   * - Antenna 4
+     - 0
+     - 0
+     - 0
+     - 1
+
+.. note::
+   Currently, the |controller| needs a maximum of 4 µs to trigger an antenna switch within the T_SW period.
+   This means that any multi-antenna switch with the correct pinout must switch within 6 µs to maintain 10 µs T_SW.
+
+Experimental limitations
+------------------------
 
 Currently, the following limitations apply to the :ref:`Experimental <nrf:software_maturity>` support of Channel Sounding:
 
  * :ref:`radio coexistence <nrf:ug_radio_coex>` and :ref:`front-end modules <mpsl_fem>` are not supported.
  * Only one subevent per event is supported in CS.
+
+Developing with CS
+******************
+
+The following samples are recommended for getting started with Channel Sounding:
+
+1. Using the Ranging Service samples:
+
+   * :ref:`Bluetooth: Channel Sounding Initiator with Ranging Requestor <nrf:channel_sounding_ras_initiator>`.
+   * :ref:`Bluetooth: Channel Sounding Reflector with Ranging Responder <nrf:channel_sounding_ras_reflector>`.
+
+2. Using the :zephyr:code-sample:`bluetooth_hci_uart` sample and running HCI commands over UART.
+
+.. note::
+   To build the :zephyr:code-sample:`bluetooth_hci_uart` sample with Channel Sounding enabled, set :kconfig:option:`CONFIG_BT_CTLR_CHANNEL_SOUNDING` to ``y``.
+
+   .. code-block:: console
+
+      west build -b nrf54l15dk/nrf54l15/cpuapp --pristine -- -DCONFIG_BT_CTLR_CHANNEL_SOUNDING=y
+
+Optional CS Kconfigs
+--------------------
+
+Use the following Kconfig options to enable the desired optional CS features:
+
+ * Set :kconfig:option:`BT_CTLR_SDC_CS_STEP_MODE3` to ``y`` to enable Channel Sounding step mode-3 support.
+
+ * Set :kconfig:option:`BT_CTLR_SDC_CS_MAX_ANTENNA_PATHS` to a value between ``2`` and ``4`` to enable Channel Sounding multiple antenna paths support.
+ * Set :kconfig:option:`BT_CTLR_SDC_CS_NUM_ANTENNAS` to a value between ``2`` and :kconfig:option:`BT_CTLR_SDC_CS_MAX_ANTENNA_PATHS` to enable Channel Sounding multiple antennas support.

softdevice_controller/include/sdc.h

@@ -160,8 +160,8 @@ extern "C" {
  */
 
 /** @brief Auxiliary defines, not to be used outside of this file. */
-#define __MEM_MINIMAL_CENTRAL_LINK_SIZE 811
-#define __MEM_MINIMAL_PERIPHERAL_LINK_SIZE 915
+#define __MEM_MINIMAL_CENTRAL_LINK_SIZE    795
+#define __MEM_MINIMAL_PERIPHERAL_LINK_SIZE 891
 #define __MEM_TX_BUFFER_OVERHEAD_SIZE 14
 #define __MEM_RX_BUFFER_OVERHEAD_SIZE 14
 
@@ -194,7 +194,7 @@ extern "C" {
      __MEM_ADDITIONAL_LINK_SIZE(tx_size, rx_size, tx_count, rx_count))
 
 /** Maximum shared memory required for central links. */
-#define SDC_MEM_CENTRAL_LINKS_SHARED 17
+#define SDC_MEM_CENTRAL_LINKS_SHARED 21
 
 /** Maximum shared memory required for peripheral links. */
 #define SDC_MEM_PERIPHERAL_LINKS_SHARED  17
@@ -209,7 +209,7 @@ extern "C" {
  *
  * @param[in] num_links Total number of peripheral and central links supported.
  */
-#define SDC_MEM_SUBRATING(num_links) (11 + (num_links) * 19)
+#define SDC_MEM_SUBRATING(num_links) ((num_links) > 0 ? (12 + (num_links) * 20) : 0)
 
 /** @brief Maximum memory required when supporting periodic advertising sync transfer.
  *
@@ -285,7 +285,6 @@ extern "C" {
 #define __MEM_MINIMAL_PERIODIC_ADV_RSP_SET_SIZE_WITHOUT_RX (166)
 #define __MEM_FOR_PERIODIC_ADV_RSP_FAILURE_REPORTING (224)
 #define __MEM_PER_ISO_PDU_POOL(count) ((count) > 0 ? (16 + (count) * 288) : 0)
-#define __MEM_PER_ISO_TX_HCI_BUFFER(count) ((count) > 0 ? (12 + (count) * 300) : 0)
 
 /** Memory required per periodic advertising with responses set.
  *
@@ -307,7 +306,7 @@ extern "C" {
 #define SDC_MEM_PER_CIG(count) ((count) > 0 ? (13 + (count) * 123) : 0)
 
 /** @brief Maximum memory required per CIS. Buffer and CIG memory comes in addition. */
-#define SDC_MEM_PER_CIS(count) ((count) > 0 ? (13 + (count) * 548) : 0)
+#define SDC_MEM_PER_CIS(count) ((count) > 0 ? (13 + (count) * 556) : 0)
 
 /** @brief Maximum memory required per BIG. */
 #define SDC_MEM_PER_BIG(count) ((count) > 0 ? (13 + (count) * 284) : 0)
@@ -352,7 +351,7 @@ extern "C" {
  *
  * @param[in] count Total number of links (central + peripheral).
  */
-#define SDC_MEM_CS_SETUP_PHASE_LINKS(count) ((count) > 0 ? (11 + (count)*339) : 0)
+#define SDC_MEM_CS_SETUP_PHASE_LINKS(count) ((count) > 0 ? (11 + (count) * 359) : 0)
 
 /** @} end of sdc_mem_defines */
 
@@ -561,6 +560,7 @@ typedef struct
     bool step_mode3_supported;
 } sdc_cfg_cs_cfg_t;
 
+
 /** @brief SoftDevice Controller configuration.  */
 typedef union
 {