extmod/btstack: Allow the BTstack config to be overridden by a board.

If a board defines MICROPY_BLUETOOTH_BTSTACK_CONFIG_FILE as the path to a
header file, then that file will be used for the BTstack config.

Signed-off-by: Damien George <damien@micropython.org>

1 files changed, 48 insertions, 0 deletions

diff --git a/extmod/btstack/btstack_config_common.h b/extmod/btstack/btstack_config_common.h
new file mode 100644
index 000000000..8118c4c1a
--- /dev/null
+++ b/extmod/btstack/btstack_config_common.h
@@ -0,0 +1,48 @@
+#ifndef MICROPY_INCLUDED_EXTMOD_BTSTACK_BTSTACK_CONFIG_COMMON_H
+#define MICROPY_INCLUDED_EXTMOD_BTSTACK_BTSTACK_CONFIG_COMMON_H
+
+// BTstack features that can be enabled
+#define ENABLE_BLE
+#define ENABLE_LE_PERIPHERAL
+#define ENABLE_LE_CENTRAL
+// #define ENABLE_CLASSIC
+#define ENABLE_L2CAP_LE_CREDIT_BASED_FLOW_CONTROL_MODE
+// #define ENABLE_LOG_INFO
+// #define ENABLE_LOG_DEBUG
+#define ENABLE_LOG_ERROR
+
+// BTstack configuration. buffers, sizes, ...
+#define HCI_ACL_PAYLOAD_SIZE 1021
+#define MAX_NR_GATT_CLIENTS 1
+#define MAX_NR_HCI_CONNECTIONS 1
+#define MAX_NR_L2CAP_SERVICES  3
+#define MAX_NR_L2CAP_CHANNELS  3
+#define MAX_NR_RFCOMM_MULTIPLEXERS 1
+#define MAX_NR_RFCOMM_SERVICES 1
+#define MAX_NR_RFCOMM_CHANNELS 1
+#define MAX_NR_BTSTACK_LINK_KEY_DB_MEMORY_ENTRIES  2
+#define MAX_NR_BNEP_SERVICES 1
+#define MAX_NR_BNEP_CHANNELS 1
+#define MAX_NR_HFP_CONNECTIONS 1
+#define MAX_NR_WHITELIST_ENTRIES 1
+#define MAX_NR_SM_LOOKUP_ENTRIES 3
+#define MAX_NR_SERVICE_RECORD_ITEMS 1
+#define MAX_NR_AVDTP_STREAM_ENDPOINTS 1
+#define MAX_NR_AVDTP_CONNECTIONS 1
+#define MAX_NR_AVRCP_CONNECTIONS 1
+
+#define MAX_NR_LE_DEVICE_DB_ENTRIES 4
+
+// Link Key DB and LE Device DB using TLV on top of Flash Sector interface
+// #define NVM_NUM_DEVICE_DB_ENTRIES 16
+
+// We don't give btstack a malloc, so use a fixed-size ATT DB.
+#define MAX_ATT_DB_SIZE 512
+
+// BTstack HAL configuration
+#define HAVE_EMBEDDED_TIME_MS
+
+// Some USB dongles take longer to respond to HCI reset (e.g. BCM20702A).
+#define HCI_RESET_RESEND_TIMEOUT_MS 1000
+
+#endif // MICROPY_INCLUDED_EXTMOD_BTSTACK_BTSTACK_CONFIG_COMMON_H