diff mbox series

[v2,2/8] qmi: gprs: use Extended Data Bearer Technology

Message ID 20240506215804.57124-2-denkenz@gmail.com (mailing list archive)
State Accepted
Commit f4873f08bed9d5007f86394dbb1020678a67f7e2
Headers show
Series [v2,1/8] qmi: wds: Fix up enum naming | expand

Commit Message

Denis Kenzior May 6, 2024, 9:57 p.m. UTC
This TLV is reported by WDS "Event Report" indication and contains a
better representation of the current bearer compared to the Data Service
Capability TLV reported in the NAS Serving System indication.

 TLV:
   type       = "Extended Data Bearer Technology" (0x2a)
   length     = 16
   value      = 00:00:00:00:03:00:00:00:00:10:00:00:00:00:00:00
   translated = [ data_bearer_technology = '3gpp'
 		  radio_access_technology = '3gpp-lte'
		  extended_data_bearer_technology_3gpp = 'lte-fdd'
		  ...]

 TLV:
   type       = "Data Service Capability" (0x11)
   length     = 2
   value      = 01:0B
   translated = { [0] = 'lte '}

Some of the 5G and more esoteric technologies are not yet handled in
this commit.  Support for these technologies needs to be added in the
core first.

Modify the logic in the gprs driver to use this new mechanism.
---
 drivers/qmimodem/gprs.c | 20 ++++++++++++---
 drivers/qmimodem/wds.c  | 55 +++++++++++++++++++++++++++++++++++++++++
 drivers/qmimodem/wds.h  | 39 +++++++++++++++++++++++++++++
 3 files changed, 111 insertions(+), 3 deletions(-)
diff mbox series

Patch

diff --git a/drivers/qmimodem/gprs.c b/drivers/qmimodem/gprs.c
index ebb235545e21..e406eba3b19a 100644
--- a/drivers/qmimodem/gprs.c
+++ b/drivers/qmimodem/gprs.c
@@ -151,9 +151,7 @@  static int handle_ss_info(struct qmi_result *result, struct ofono_gprs *gprs)
 	if (!extract_ss_info(result, &status, &tech))
 		return -1;
 
-	/* DC is optional so only notify on successful extraction */
-	if (extract_dc_info(result, &bearer_tech))
-		ofono_gprs_bearer_notify(gprs, bearer_tech);
+	extract_dc_info(result, &bearer_tech);
 
 	return status;
 }
@@ -174,6 +172,7 @@  static void ss_info_notify(struct qmi_result *result, void *user_data)
 static void event_report_notify(struct qmi_result *result, void *user_data)
 {
 	static const uint8_t RESULT_DATA_SYSTEM_STATUS = 0x24;
+	static const uint8_t RESULT_EXTENDED_DATA_BEARER_TECHNOLOGY = 0x2a;
 	struct ofono_gprs *gprs = user_data;
 	const void *tlv;
 	uint16_t len;
@@ -198,6 +197,21 @@  static void event_report_notify(struct qmi_result *result, void *user_data)
 		return;
 	}
 
+	tlv = qmi_result_get(result,
+				RESULT_EXTENDED_DATA_BEARER_TECHNOLOGY, &len);
+	if (tlv) {
+		int r = qmi_wds_parse_extended_data_bearer_technology(tlv, len);
+
+		if (r < 0) {
+			ofono_warn("extended_data_bearer_technology: %s(%d)",
+					strerror(-r), r);
+			return;
+		}
+
+		ofono_gprs_bearer_notify(gprs, r);
+		return;
+	}
+
 	qmi_result_print_tlvs(result);
 }
 
diff --git a/drivers/qmimodem/wds.c b/drivers/qmimodem/wds.c
index 77e22f443db0..ced0c5e5308d 100644
--- a/drivers/qmimodem/wds.c
+++ b/drivers/qmimodem/wds.c
@@ -75,3 +75,58 @@  int qmi_wds_parse_data_system_status(const void *dss, uint16_t len)
 
 	return -ENOENT;
 }
+
+int qmi_wds_parse_extended_data_bearer_technology(const void *edbt, uint16_t len)
+{
+	uint32_t technology;
+	uint32_t rat;
+	uint32_t so;
+	int bearer;
+
+	if (len != sizeof(uint32_t) * 2 + sizeof(uint64_t))
+		return -EBADMSG;
+
+	technology = l_get_le32(edbt);
+	rat = l_get_le32(edbt + sizeof(uint32_t));
+	so = l_get_le64(edbt + sizeof(uint32_t) * 2);
+
+	if (technology != QMI_WDS_PROFILE_TYPE_3GPP)
+		return -EINVAL;
+
+	switch (rat) {
+	case QMI_WDS_RAT_WCDMA:
+		bearer = PACKET_BEARER_UMTS;
+		break;
+	case QMI_WDS_RAT_LTE:
+		bearer = PACKET_BEARER_EPS;
+		break;
+	default:
+		return -ENOENT;
+	}
+
+	if (so & (QMI_WDS_SO_LTE_LIMITED | QMI_WDS_SO_LTE_FDD |
+			QMI_WDS_SO_LTE_TDD))
+		return PACKET_BEARER_EPS;
+
+	if (so & (QMI_WDS_SO_HSDPAPLUS | QMI_WDS_SO_DC_HSDPAPLUS |
+			QMI_WDS_SO_64_QAM | QMI_WDS_SO_HSPA))
+		return PACKET_BEARER_HSUPA_HSDPA;
+
+	if (so & (QMI_WDS_SO_HSUPA | QMI_WDS_SO_DC_HSUPA))
+		return PACKET_BEARER_HSUPA;
+
+	if (so & QMI_WDS_SO_HSDPA)
+		return PACKET_BEARER_HSDPA;
+
+	if (so & QMI_WDS_SO_WCDMA)
+		return PACKET_BEARER_UMTS;
+
+	if (so & QMI_WDS_SO_EDGE)
+		return PACKET_BEARER_EGPRS;
+
+	if (so & QMI_WDS_SO_GPRS)
+		return PACKET_BEARER_GPRS;
+
+	/* Fall back to rat */
+	return bearer;
+}
diff --git a/drivers/qmimodem/wds.h b/drivers/qmimodem/wds.h
index 218587c3e437..026402e7a3f6 100644
--- a/drivers/qmimodem/wds.h
+++ b/drivers/qmimodem/wds.h
@@ -83,6 +83,43 @@  enum qmi_wds_rat_3gpp {
 	QMI_WDS_RAT_3GPP_NULL_BEARER		= 0x8000,
 };
 
+enum qmi_wds_rat {
+	QMI_WDS_RAT_WCDMA			= 0x01,
+	QMI_WDS_RAT_GERAN			= 0x02,
+	QMI_WDS_RAT_LTE				= 0x03,
+	QMI_WDS_RAT_TDSCDMA			= 0x04,
+	QMI_WDS_RAT_WLAN			= 0x05,
+};
+
+enum qmi_wds_service_option {
+	QMI_WDS_SO_WCDMA			= 0x01ULL,
+	QMI_WDS_SO_HSDPA			= 0x02ULL,
+	QMI_WDS_SO_HSUPA			= 0x04ULL,
+	QMI_WDS_SO_HSDPAPLUS			= 0x08ULL,
+	QMI_WDS_SO_DC_HSDPAPLUS			= 0x10ULL,
+	QMI_WDS_SO_64_QAM			= 0x20ULL,
+	QMI_WDS_SO_HSPA				= 0x40ULL,
+	QMI_WDS_SO_GPRS				= 0x80ULL,
+	QMI_WDS_SO_EDGE				= 0x100ULL,
+	QMI_WDS_SO_GSM				= 0x200ULL,
+	QMI_WDS_SO_S2B				= 0x400ULL,
+	QMI_WDS_SO_LTE_LIMITED			= 0x800ULL,
+	QMI_WDS_SO_LTE_FDD			= 0x1000ULL,
+	QMI_WDS_SO_LTE_TDD			= 0x2000ULL,
+	QMI_WDS_SO_TDSCDMA			= 0x4000ULL,
+	QMI_WDS_SO_DC_HSUPA			= 0x8000ULL,
+	QMI_WDS_SO_LTE_CA_DL			= 0x10000ULL,
+	QMI_WDS_SO_LTE_CA_UL			= 0x20000ULL,
+	QMI_WDS_SO_S2B_LIMITED			= 0x40000ULL,
+	QMI_WDS_SO_FOUR_POINT_FIVE_G		= 0x80000ULL,
+	QMI_WDS_SO_FOUR_POINT_FIVE_G_PLUS	= 0x100000ULL,
+	QMI_WDS_SO_5G_TDD			= 0x10000000000ULL,
+	QMI_WDS_SO_5G_SUB6			= 0x20000000000ULL,
+	QMI_WDS_SO_5G_MMWAVE			= 0x40000000000ULL,
+	QMI_WDS_SO_5G_NSA			= 0x80000000000ULL,
+	QMI_WDS_SO_5G_SA			= 0x100000000000ULL,
+};
+
 enum qmi_wds_command {
 	QMI_WDS_RESET					= 0x00,
 	QMI_WDS_EVENT_REPORT				= 0x01,
@@ -128,3 +165,5 @@  int qmi_wds_auth_from_ofono(enum ofono_gprs_auth_method method);
 int qmi_wds_pdp_type_from_ofono(enum ofono_gprs_proto proto);
 
 int qmi_wds_parse_data_system_status(const void *dss, uint16_t len);
+int qmi_wds_parse_extended_data_bearer_technology(const void *edbt,
+							uint16_t len);