[BlueZ,2/3] adapter:set default system configuration if available

Commit Message

Alain Michaud May 29, 2020, 2:50 p.m. UTC

This change loads any specified system configuration if provided and
supported by the kernel.

---

 src/adapter.c | 251 ++++++++++++++++++++++++++++++++++++++++++++++++++
 src/hcid.h    |  39 ++++++++
 2 files changed, 290 insertions(+)

Comments

[e-mail] May 29, 2020, 3:08 p.m. UTC | #1

This is automated email and please do not reply to this email!

Dear submitter,

Thank you for submitting the patches to the linux bluetooth mailing list.
While we are preparing for reviewing the patches, we found the following
issue/warning.

Test Result:
checkpatch Failed

Outputs:
ERROR:INITIALISED_STATIC: do not initialise statics to false
#17: FILE: src/adapter.c:123:
+static bool kernel_set_system_params = false;

ERROR:SPACING: space required after that ',' (ctx:VxV)
#260: FILE: src/adapter.c:4396:
+	mgmt_send(adapter->mgmt,MGMT_OP_SET_DEFAULT_SYSTEM_PARAMETERS,
 	                       ^

- total: 2 errors, 0 warnings, 320 lines checked

NOTE: For some of the reported defects, checkpatch may be able to
      mechanically convert to the typical style using --fix or --fix-inplace.

Your patch has style problems, please review.

NOTE: Ignored message types: COMMIT_MESSAGE COMPLEX_MACRO CONST_STRUCT FILE_PATH_CHANGES MISSING_SIGN_OFF PREFER_PACKED SPLIT_STRING

NOTE: If any of the errors are false positives, please report
      them to the maintainer, see CHECKPATCH in MAINTAINERS.



---
Regards,
Linux Bluetooth

Patch

diff --git a/src/adapter.c b/src/adapter.c
index 972d88772..a5eba8ef7 100644
--- a/src/adapter.c
+++ b/src/adapter.c
@@ -120,6 +120,8 @@  static bool kernel_conn_control = false;
 
 static bool kernel_blocked_keys_supported = false;
 
+static bool kernel_set_system_params = false;
+
 static GList *adapter_list = NULL;
 static unsigned int adapter_remaining = 0;
 static bool powering_down = false;
@@ -4157,6 +4159,250 @@  static void probe_devices(void *user_data)
 	device_probe_profiles(device, btd_device_get_uuids(device));
 }
 
+static void load_default_system_params(struct btd_adapter *adapter)
+{
+	/* note: for now all params are 2 bytes, if varying size params are
+	 * added, calculating the right size of buffer will be necessary first.
+	 */
+	struct controller_params_tlv {
+		uint16_t parameter_type;
+		uint8_t length;
+		uint16_t value;
+	} __packed;
+
+	struct controller_params_tlv *params = NULL;
+	uint16_t i = 0;
+	size_t cp_size;
+
+	if (!main_opts.default_params.num_set_params ||
+		!kernel_set_system_params)
+		return;
+
+	cp_size = sizeof(struct controller_params_tlv) *
+				main_opts.default_params.num_set_params;
+	params = g_try_malloc0(cp_size);
+	if (!params)
+		return;
+
+	if (main_opts.default_params.br_page_scan_type != 0xFFFF) {
+		params[i].parameter_type = 0x0000;
+		params[i].length = sizeof(params[i].value);
+		params[i].value = main_opts.default_params.br_page_scan_type;
+		++i;
+	}
+
+	if (main_opts.default_params.br_page_scan_interval) {
+		params[i].parameter_type = 0x0001;
+		params[i].length = sizeof(params[i].value);
+		params[i].value =
+				main_opts.default_params.br_page_scan_interval;
+		++i;
+	}
+
+	if (main_opts.default_params.br_page_scan_window) {
+		params[i].parameter_type = 0x0002;
+		params[i].length = sizeof(params[i].value);
+		params[i].value = main_opts.default_params.br_page_scan_window;
+		++i;
+	}
+
+	if (main_opts.default_params.br_inquiry_scan_type != 0xFFFF) {
+		params[i].parameter_type = 0x0003;
+		params[i].length = sizeof(params[i].value);
+		params[i].value = main_opts.default_params.br_inquiry_scan_type;
+		++i;
+	}
+
+	if (main_opts.default_params.br_inquiry_scan_interval) {
+		params[i].parameter_type = 0x0004;
+		params[i].length = sizeof(params[i].value);
+		params[i].value =
+			main_opts.default_params.br_inquiry_scan_interval;
+		++i;
+	}
+
+	if (main_opts.default_params.br_inquiry_scan_window) {
+		params[i].parameter_type = 0x0005;
+		params[i].length = sizeof(params[i].value);
+		params[i].value =
+				main_opts.default_params.br_inquiry_scan_window;
+		++i;
+	}
+
+	if (main_opts.default_params.br_link_supervision_timeout) {
+		params[i].parameter_type = 0x0006;
+		params[i].length = sizeof(params[i].value);
+		params[i].value =
+			main_opts.default_params.br_link_supervision_timeout;
+		++i;
+	}
+
+	if (main_opts.default_params.br_page_timeout) {
+		params[i].parameter_type = 0x0007;
+		params[i].length = sizeof(params[i].value);
+		params[i].value = main_opts.default_params.br_page_timeout;
+		++i;
+	}
+
+	if (main_opts.default_params.br_min_sniff_interval) {
+		params[i].parameter_type = 0x0008;
+		params[i].length = sizeof(params[i].value);
+		params[i].value =
+				main_opts.default_params.br_min_sniff_interval;
+		++i;
+	}
+
+	if (main_opts.default_params.br_max_sniff_interval) {
+		params[i].parameter_type = 0x0009;
+		params[i].length = sizeof(params[i].value);
+		params[i].value =
+				main_opts.default_params.br_max_sniff_interval;
+		++i;
+	}
+
+	if (main_opts.default_params.le_min_adv_interval) {
+		params[i].parameter_type = 0x000a;
+		params[i].length = sizeof(params[i].value);
+		params[i].value = main_opts.default_params.le_min_adv_interval;
+		++i;
+	}
+
+	if (main_opts.default_params.le_max_adv_interval) {
+		params[i].parameter_type = 0x000b;
+		params[i].length = sizeof(params[i].value);
+		params[i].value = main_opts.default_params.le_max_adv_interval;
+		++i;
+	}
+
+	if (main_opts.default_params.le_multi_adv_rotation_interval) {
+		params[i].parameter_type = 0x000c;
+		params[i].length = sizeof(params[i].value);
+		params[i].value =
+			main_opts.default_params.le_multi_adv_rotation_interval;
+		++i;
+	}
+
+	if (main_opts.default_params.le_scan_interval_autoconnect) {
+		params[i].parameter_type = 0x000d;
+		params[i].length = sizeof(params[i].value);
+		params[i].value =
+			main_opts.default_params.le_scan_interval_autoconnect;
+		++i;
+	}
+
+	if (main_opts.default_params.le_scan_window_autoconnect) {
+		params[i].parameter_type = 0x000e;
+		params[i].length = sizeof(params[i].value);
+		params[i].value =
+			main_opts.default_params.le_scan_window_autoconnect;
+		++i;
+	}
+
+	if (main_opts.default_params.le_scan_interval_suspend) {
+		params[i].parameter_type = 0x000f;
+		params[i].length = sizeof(params[i].value);
+		params[i].value =
+			main_opts.default_params.le_scan_interval_suspend;
+		++i;
+	}
+
+	if (main_opts.default_params.le_scan_window_suspend) {
+		params[i].parameter_type = 0x0010;
+		params[i].length = sizeof(params[i].value);
+		params[i].value =
+			main_opts.default_params.le_scan_window_suspend;
+		++i;
+	}
+
+	if (main_opts.default_params.le_scan_interval_discovery) {
+		params[i].parameter_type = 0x0011;
+		params[i].length = sizeof(params[i].value);
+		params[i].value =
+			main_opts.default_params.le_scan_interval_discovery;
+		++i;
+	}
+
+	if (main_opts.default_params.le_scan_window_discovery) {
+		params[i].parameter_type = 0x0012;
+		params[i].length = sizeof(params[i].value);
+		params[i].value =
+			main_opts.default_params.le_scan_window_discovery;
+		++i;
+	}
+
+	if (main_opts.default_params.le_scan_interval_adv_monitor) {
+		params[i].parameter_type = 0x0013;
+		params[i].length = sizeof(params[i].value);
+		params[i].value =
+			main_opts.default_params.le_scan_interval_adv_monitor;
+		++i;
+	}
+
+	if (main_opts.default_params.le_scan_window_adv_monitor) {
+		params[i].parameter_type = 0x0014;
+		params[i].length = sizeof(params[i].value);
+		params[i].value =
+			main_opts.default_params.le_scan_window_adv_monitor;
+		++i;
+	}
+
+	if (main_opts.default_params.le_scan_interval_connect) {
+		params[i].parameter_type = 0x0015;
+		params[i].length = sizeof(params[i].value);
+		params[i].value =
+			main_opts.default_params.le_scan_interval_connect;
+		++i;
+	}
+
+	if (main_opts.default_params.le_scan_window_connect) {
+		params[i].parameter_type = 0x0016;
+		params[i].length = sizeof(params[i].value);
+		params[i].value =
+				main_opts.default_params.le_scan_window_connect;
+		++i;
+	}
+
+	if (main_opts.default_params.le_min_connection_interval) {
+		params[i].parameter_type = 0x0017;
+		params[i].length = sizeof(params[i].value);
+		params[i].value =
+			main_opts.default_params.le_min_connection_interval;
+		++i;
+	}
+
+	if (main_opts.default_params.le_max_connection_interval) {
+		params[i].parameter_type = 0x0018;
+		params[i].length = sizeof(params[i].value);
+		params[i].value =
+			main_opts.default_params.le_max_connection_interval;
+		++i;
+	}
+
+	if (main_opts.default_params.le_connection_latency) {
+		params[i].parameter_type = 0x0019;
+		params[i].length = sizeof(params[i].value);
+		params[i].value =
+			main_opts.default_params.le_connection_latency;
+		++i;
+	}
+
+	if (main_opts.default_params.le_connection_lsto) {
+		params[i].parameter_type = 0x001a;
+		params[i].length = sizeof(params[i].value);
+		params[i].value = main_opts.default_params.le_connection_lsto;
+		++i;
+	}
+
+	mgmt_send(adapter->mgmt,MGMT_OP_SET_DEFAULT_SYSTEM_PARAMETERS,
+			adapter->dev_id, cp_size, params, NULL, NULL, NULL);
+
+	btd_error(adapter->dev_id,
+				"Failed to set default system params for hci%u",
+				adapter->dev_id);
+
+	g_free(params);
+}
+
 static void load_devices(struct btd_adapter *adapter)
 {
 	char dirname[PATH_MAX];
@@ -8265,6 +8511,7 @@  load:
 	load_drivers(adapter);
 	btd_profile_foreach(probe_profile, adapter);
 	clear_blocked(adapter);
+	load_default_system_params(adapter);
 	load_devices(adapter);
 
 	/* restore Service Changed CCC value for bonded devices */
@@ -9158,6 +9405,10 @@  static void read_commands_complete(uint8_t status, uint16_t length,
 			DBG("kernel supports the set_blocked_keys op");
 			kernel_blocked_keys_supported = true;
 			break;
+		case MGMT_OP_SET_DEFAULT_SYSTEM_PARAMETERS:
+			DBG("kernel supports set system params");
+			kernel_set_system_params = true;
+			break;
 		default:
 			break;
 		}
diff --git a/src/hcid.h b/src/hcid.h
index 1bf93784d..e6d966c58 100644
--- a/src/hcid.h
+++ b/src/hcid.h
@@ -49,6 +49,45 @@  struct main_opts {
 	uint32_t	discovto;
 	uint8_t		privacy;
 
+	struct {
+		uint16_t	num_set_params;
+
+		uint16_t	br_page_scan_type;
+		uint16_t	br_page_scan_interval;
+		uint16_t	br_page_scan_window;
+
+		uint16_t	br_inquiry_scan_type;
+		uint16_t	br_inquiry_scan_interval;
+		uint16_t	br_inquiry_scan_window;
+
+		uint16_t	br_link_supervision_timeout;
+		uint16_t	br_page_timeout;
+
+		uint16_t	br_min_sniff_interval;
+		uint16_t	br_max_sniff_interval;
+
+		uint16_t	le_min_adv_interval;
+		uint16_t	le_max_adv_interval;
+		uint16_t	le_multi_adv_rotation_interval;
+
+		uint16_t	le_scan_interval_autoconnect;
+		uint16_t	le_scan_window_autoconnect;
+		uint16_t	le_scan_interval_suspend;
+		uint16_t	le_scan_window_suspend;
+		uint16_t	le_scan_interval_discovery;
+		uint16_t	le_scan_window_discovery;
+		uint16_t	le_scan_interval_adv_monitor;
+		uint16_t	le_scan_window_adv_monitor;
+		uint16_t	le_scan_interval_connect;
+		uint16_t	le_scan_window_connect;
+
+		uint16_t	le_min_connection_interval;
+		uint16_t	le_max_connection_interval;
+		uint16_t	le_connection_latency;
+		uint16_t	le_connection_lsto;
+	} default_params;
+
+
 	gboolean	reverse_discovery;
 	gboolean	name_resolv;
 	gboolean	debug_keys;