Adding upstream version 6.1.76.upstream/6.1.76upstream

Signed-off-by: Daniel Baumann <daniel.baumann@progress-linux.org>

1 files changed, 64 insertions, 0 deletions

diff --git a/drivers/net/ipa/ipa_qmi.h b/drivers/net/ipa/ipa_qmi.h
new file mode 100644
index 000000000..1c236826c
--- /dev/null
+++ b/drivers/net/ipa/ipa_qmi.h
@@ -0,0 +1,64 @@
+/* SPDX-License-Identifier: GPL-2.0 */
+
+/* Copyright (c) 2018, The Linux Foundation. All rights reserved.
+ * Copyright (C) 2018-2022 Linaro Ltd.
+ */
+#ifndef _IPA_QMI_H_
+#define _IPA_QMI_H_
+
+#include <linux/types.h>
+#include <linux/soc/qcom/qmi.h>
+
+struct ipa;
+
+/**
+ * struct ipa_qmi - QMI state associated with an IPA
+ * @client_handle:	Used to send an QMI requests to the modem
+ * @server_handle:	Used to handle QMI requests from the modem
+ * @modem_sq:		QMAP socket address for the modem QMI server
+ * @init_driver_work:	Work structure used for INIT_DRIVER message handling
+ * @initial_boot:	True if first boot has not yet completed
+ * @uc_ready:		True once DRIVER_INIT_COMPLETE request received
+ * @modem_ready:	True when INIT_DRIVER response received
+ * @indication_requested: True when INDICATION_REGISTER request received
+ * @indication_sent:	True when INIT_COMPLETE indication sent
+ */
+struct ipa_qmi {
+	struct qmi_handle client_handle;
+	struct qmi_handle server_handle;
+
+	/* Information used for the client handle */
+	struct sockaddr_qrtr modem_sq;
+	struct work_struct init_driver_work;
+
+	/* Flags used in negotiating readiness */
+	bool initial_boot;
+	bool uc_ready;
+	bool modem_ready;
+	bool indication_requested;
+	bool indication_sent;
+};
+
+/**
+ * ipa_qmi_setup() - Set up for QMI message exchange
+ * @ipa:		IPA pointer
+ *
+ * This is called at the end of ipa_setup(), to prepare for the exchange
+ * of QMI messages that perform a "handshake" between the AP and modem.
+ * When the modem QMI server announces its presence, an AP request message
+ * supplies operating parameters to be used to the modem, and the modem
+ * acknowledges receipt of those parameters.  The modem will not touch the
+ * IPA hardware until this handshake is complete.
+ *
+ * If the modem crashes (or shuts down) a new handshake begins when the
+ * modem's QMI server is started again.
+ */
+int ipa_qmi_setup(struct ipa *ipa);
+
+/**
+ * ipa_qmi_teardown() - Tear down IPA QMI handles
+ * @ipa:		IPA pointer
+ */
+void ipa_qmi_teardown(struct ipa *ipa);
+
+#endif /* !_IPA_QMI_H_ */