--- /dev/null
+// SPDX-License-Identifier: GPL-2.0
+
+/* Copyright (c) 2013-2018, The Linux Foundation. All rights reserved.
+ * Copyright (C) 2018-2020 Linaro Ltd.
+ */
+
+#include <linux/types.h>
+#include <linux/string.h>
+#include <linux/slab.h>
+#include <linux/qrtr.h>
+#include <linux/soc/qcom/qmi.h>
+
+#include "ipa.h"
+#include "ipa_endpoint.h"
+#include "ipa_mem.h"
+#include "ipa_table.h"
+#include "ipa_modem.h"
+#include "ipa_qmi_msg.h"
+
+/**
+ * DOC: AP/Modem QMI Handshake
+ *
+ * The AP and modem perform a "handshake" at initialization time to ensure
+ * both sides know when everything is ready to begin operating. The AP
+ * driver (this code) uses two QMI handles (endpoints) for this; a client
+ * using a service on the modem, and server to service modem requests (and
+ * to supply an indication message from the AP). Once the handshake is
+ * complete, the AP and modem may begin IPA operation. This occurs
+ * only when the AP IPA driver, modem IPA driver, and IPA microcontroller
+ * are ready.
+ *
+ * The QMI service on the modem expects to receive an INIT_DRIVER request from
+ * the AP, which contains parameters used by the modem during initialization.
+ * The AP sends this request as soon as it is knows the modem side service
+ * is available. The modem responds to this request, and if this response
+ * contains a success result, the AP knows the modem IPA driver is ready.
+ *
+ * The modem is responsible for loading firmware on the IPA microcontroller.
+ * This occurs only during the initial modem boot. The modem sends a
+ * separate DRIVER_INIT_COMPLETE request to the AP to report that the
+ * microcontroller is ready. The AP may assume the microcontroller is
+ * ready and remain so (even if the modem reboots) once it has received
+ * and responded to this request.
+ *
+ * There is one final exchange involved in the handshake. It is required
+ * on the initial modem boot, but optional (but in practice does occur) on
+ * subsequent boots. The modem expects to receive a final INIT_COMPLETE
+ * indication message from the AP when it is about to begin its normal
+ * operation. The AP will only send this message after it has received
+ * and responded to an INDICATION_REGISTER request from the modem.
+ *
+ * So in summary:
+ * - Whenever the AP learns the modem has booted and its IPA QMI service
+ * is available, it sends an INIT_DRIVER request to the modem. The
+ * modem supplies a success response when it is ready to operate.
+ * - On the initial boot, the modem sets up the IPA microcontroller, and
+ * sends a DRIVER_INIT_COMPLETE request to the AP when this is done.
+ * - When the modem is ready to receive an INIT_COMPLETE indication from
+ * the AP, it sends an INDICATION_REGISTER request to the AP.
+ * - On the initial modem boot, everything is ready when:
+ * - AP has received a success response from its INIT_DRIVER request
+ * - AP has responded to a DRIVER_INIT_COMPLETE request
+ * - AP has responded to an INDICATION_REGISTER request from the modem
+ * - AP has sent an INIT_COMPLETE indication to the modem
+ * - On subsequent modem boots, everything is ready when:
+ * - AP has received a success response from its INIT_DRIVER request
+ * - AP has responded to a DRIVER_INIT_COMPLETE request
+ * - The INDICATION_REGISTER request and INIT_COMPLETE indication are
+ * optional for non-initial modem boots, and have no bearing on the
+ * determination of when things are "ready"
+ */
+
+#define IPA_HOST_SERVICE_SVC_ID 0x31
+#define IPA_HOST_SVC_VERS 1
+#define IPA_HOST_SERVICE_INS_ID 1
+
+#define IPA_MODEM_SERVICE_SVC_ID 0x31
+#define IPA_MODEM_SERVICE_INS_ID 2
+#define IPA_MODEM_SVC_VERS 1
+
+#define QMI_INIT_DRIVER_TIMEOUT 60000 /* A minute in milliseconds */
+
+/* Send an INIT_COMPLETE indication message to the modem */
+static void ipa_server_init_complete(struct ipa_qmi *ipa_qmi)
+{
+ struct ipa *ipa = container_of(ipa_qmi, struct ipa, qmi);
+ struct qmi_handle *qmi = &ipa_qmi->server_handle;
+ struct sockaddr_qrtr *sq = &ipa_qmi->modem_sq;
+ struct ipa_init_complete_ind ind = { };
+ int ret;
+
+ ind.status.result = QMI_RESULT_SUCCESS_V01;
+ ind.status.error = QMI_ERR_NONE_V01;
+
+ ret = qmi_send_indication(qmi, sq, IPA_QMI_INIT_COMPLETE,
+ IPA_QMI_INIT_COMPLETE_IND_SZ,
+ ipa_init_complete_ind_ei, &ind);
+ if (ret)
+ dev_err(&ipa->pdev->dev,
+ "error %d sending init complete indication\n", ret);
+ else
+ ipa_qmi->indication_sent = true;
+}
+
+/* If requested (and not already sent) send the INIT_COMPLETE indication */
+static void ipa_qmi_indication(struct ipa_qmi *ipa_qmi)
+{
+ if (!ipa_qmi->indication_requested)
+ return;
+
+ if (ipa_qmi->indication_sent)
+ return;
+
+ ipa_server_init_complete(ipa_qmi);
+}
+
+/* Determine whether everything is ready to start normal operation.
+ * We know everything (else) is ready when we know the IPA driver on
+ * the modem is ready, and the microcontroller is ready.
+ *
+ * When the modem boots (or reboots), the handshake sequence starts
+ * with the AP sending the modem an INIT_DRIVER request. Within
+ * that request, the uc_loaded flag will be zero (false) for an
+ * initial boot, non-zero (true) for a subsequent (SSR) boot.
+ */
+static void ipa_qmi_ready(struct ipa_qmi *ipa_qmi)
+{
+ struct ipa *ipa = container_of(ipa_qmi, struct ipa, qmi);
+ int ret;
+
+ /* We aren't ready until the modem and microcontroller are */
+ if (!ipa_qmi->modem_ready || !ipa_qmi->uc_ready)
+ return;
+
+ /* Send the indication message if it was requested */
+ ipa_qmi_indication(ipa_qmi);
+
+ /* The initial boot requires us to send the indication. */
+ if (ipa_qmi->initial_boot) {
+ if (!ipa_qmi->indication_sent)
+ return;
+
+ /* The initial modem boot completed successfully */
+ ipa_qmi->initial_boot = false;
+ }
+
+ /* We're ready. Start up normal operation */
+ ipa = container_of(ipa_qmi, struct ipa, qmi);
+ ret = ipa_modem_start(ipa);
+ if (ret)
+ dev_err(&ipa->pdev->dev, "error %d starting modem\n", ret);
+}
+
+/* All QMI clients from the modem node are gone (modem shut down or crashed). */
+static void ipa_server_bye(struct qmi_handle *qmi, unsigned int node)
+{
+ struct ipa_qmi *ipa_qmi;
+
+ ipa_qmi = container_of(qmi, struct ipa_qmi, server_handle);
+
+ /* The modem client and server go away at the same time */
+ memset(&ipa_qmi->modem_sq, 0, sizeof(ipa_qmi->modem_sq));
+
+ /* initial_boot doesn't change when modem reboots */
+ /* uc_ready doesn't change when modem reboots */
+ ipa_qmi->modem_ready = false;
+ ipa_qmi->indication_requested = false;
+ ipa_qmi->indication_sent = false;
+}
+
+static struct qmi_ops ipa_server_ops = {
+ .bye = ipa_server_bye,
+};
+
+/* Callback function to handle an INDICATION_REGISTER request message from the
+ * modem. This informs the AP that the modem is now ready to receive the
+ * INIT_COMPLETE indication message.
+ */
+static void ipa_server_indication_register(struct qmi_handle *qmi,
+ struct sockaddr_qrtr *sq,
+ struct qmi_txn *txn,
+ const void *decoded)
+{
+ struct ipa_indication_register_rsp rsp = { };
+ struct ipa_qmi *ipa_qmi;
+ struct ipa *ipa;
+ int ret;
+
+ ipa_qmi = container_of(qmi, struct ipa_qmi, server_handle);
+ ipa = container_of(ipa_qmi, struct ipa, qmi);
+
+ rsp.rsp.result = QMI_RESULT_SUCCESS_V01;
+ rsp.rsp.error = QMI_ERR_NONE_V01;
+
+ ret = qmi_send_response(qmi, sq, txn, IPA_QMI_INDICATION_REGISTER,
+ IPA_QMI_INDICATION_REGISTER_RSP_SZ,
+ ipa_indication_register_rsp_ei, &rsp);
+ if (!ret) {
+ ipa_qmi->indication_requested = true;
+ ipa_qmi_ready(ipa_qmi); /* We might be ready now */
+ } else {
+ dev_err(&ipa->pdev->dev,
+ "error %d sending register indication response\n", ret);
+ }
+}
+
+/* Respond to a DRIVER_INIT_COMPLETE request message from the modem. */
+static void ipa_server_driver_init_complete(struct qmi_handle *qmi,
+ struct sockaddr_qrtr *sq,
+ struct qmi_txn *txn,
+ const void *decoded)
+{
+ struct ipa_driver_init_complete_rsp rsp = { };
+ struct ipa_qmi *ipa_qmi;
+ struct ipa *ipa;
+ int ret;
+
+ ipa_qmi = container_of(qmi, struct ipa_qmi, server_handle);
+ ipa = container_of(ipa_qmi, struct ipa, qmi);
+
+ rsp.rsp.result = QMI_RESULT_SUCCESS_V01;
+ rsp.rsp.error = QMI_ERR_NONE_V01;
+
+ ret = qmi_send_response(qmi, sq, txn, IPA_QMI_DRIVER_INIT_COMPLETE,
+ IPA_QMI_DRIVER_INIT_COMPLETE_RSP_SZ,
+ ipa_driver_init_complete_rsp_ei, &rsp);
+ if (!ret) {
+ ipa_qmi->uc_ready = true;
+ ipa_qmi_ready(ipa_qmi); /* We might be ready now */
+ } else {
+ dev_err(&ipa->pdev->dev,
+ "error %d sending init complete response\n", ret);
+ }
+}
+
+/* The server handles two request message types sent by the modem. */
+static struct qmi_msg_handler ipa_server_msg_handlers[] = {
+ {
+ .type = QMI_REQUEST,
+ .msg_id = IPA_QMI_INDICATION_REGISTER,
+ .ei = ipa_indication_register_req_ei,
+ .decoded_size = IPA_QMI_INDICATION_REGISTER_REQ_SZ,
+ .fn = ipa_server_indication_register,
+ },
+ {
+ .type = QMI_REQUEST,
+ .msg_id = IPA_QMI_DRIVER_INIT_COMPLETE,
+ .ei = ipa_driver_init_complete_req_ei,
+ .decoded_size = IPA_QMI_DRIVER_INIT_COMPLETE_REQ_SZ,
+ .fn = ipa_server_driver_init_complete,
+ },
+};
+
+/* Handle an INIT_DRIVER response message from the modem. */
+static void ipa_client_init_driver(struct qmi_handle *qmi,
+ struct sockaddr_qrtr *sq,
+ struct qmi_txn *txn, const void *decoded)
+{
+ txn->result = 0; /* IPA_QMI_INIT_DRIVER request was successful */
+ complete(&txn->completion);
+}
+
+/* The client handles one response message type sent by the modem. */
+static struct qmi_msg_handler ipa_client_msg_handlers[] = {
+ {
+ .type = QMI_RESPONSE,
+ .msg_id = IPA_QMI_INIT_DRIVER,
+ .ei = ipa_init_modem_driver_rsp_ei,
+ .decoded_size = IPA_QMI_INIT_DRIVER_RSP_SZ,
+ .fn = ipa_client_init_driver,
+ },
+};
+
+/* Return a pointer to an init modem driver request structure, which contains
+ * configuration parameters for the modem. The modem may be started multiple
+ * times, but generally these parameters don't change so we can reuse the
+ * request structure once it's initialized. The only exception is the
+ * skip_uc_load field, which will be set only after the microcontroller has
+ * reported it has completed its initialization.
+ */
+static const struct ipa_init_modem_driver_req *
+init_modem_driver_req(struct ipa_qmi *ipa_qmi)
+{
+ struct ipa *ipa = container_of(ipa_qmi, struct ipa, qmi);
+ static struct ipa_init_modem_driver_req req;
+ const struct ipa_mem *mem;
+
+ /* The microcontroller is initialized on the first boot */
+ req.skip_uc_load_valid = 1;
+ req.skip_uc_load = ipa->uc_loaded ? 1 : 0;
+
+ /* We only have to initialize most of it once */
+ if (req.platform_type_valid)
+ return &req;
+
+ req.platform_type_valid = 1;
+ req.platform_type = IPA_QMI_PLATFORM_TYPE_MSM_ANDROID;
+
+ mem = &ipa->mem[IPA_MEM_MODEM_HEADER];
+ if (mem->size) {
+ req.hdr_tbl_info_valid = 1;
+ req.hdr_tbl_info.start = ipa->mem_offset + mem->offset;
+ req.hdr_tbl_info.end = req.hdr_tbl_info.start + mem->size - 1;
+ }
+
+ mem = &ipa->mem[IPA_MEM_V4_ROUTE];
+ req.v4_route_tbl_info_valid = 1;
+ req.v4_route_tbl_info.start = ipa->mem_offset + mem->offset;
+ req.v4_route_tbl_info.count = mem->size / IPA_TABLE_ENTRY_SIZE;
+
+ mem = &ipa->mem[IPA_MEM_V6_ROUTE];
+ req.v6_route_tbl_info_valid = 1;
+ req.v6_route_tbl_info.start = ipa->mem_offset + mem->offset;
+ req.v6_route_tbl_info.count = mem->size / IPA_TABLE_ENTRY_SIZE;
+
+ mem = &ipa->mem[IPA_MEM_V4_FILTER];
+ req.v4_filter_tbl_start_valid = 1;
+ req.v4_filter_tbl_start = ipa->mem_offset + mem->offset;
+
+ mem = &ipa->mem[IPA_MEM_V6_FILTER];
+ req.v6_filter_tbl_start_valid = 1;
+ req.v6_filter_tbl_start = ipa->mem_offset + mem->offset;
+
+ mem = &ipa->mem[IPA_MEM_MODEM];
+ if (mem->size) {
+ req.modem_mem_info_valid = 1;
+ req.modem_mem_info.start = ipa->mem_offset + mem->offset;
+ req.modem_mem_info.size = mem->size;
+ }
+
+ req.ctrl_comm_dest_end_pt_valid = 1;
+ req.ctrl_comm_dest_end_pt =
+ ipa->name_map[IPA_ENDPOINT_AP_MODEM_RX]->endpoint_id;
+
+ /* skip_uc_load_valid and skip_uc_load are set above */
+
+ mem = &ipa->mem[IPA_MEM_MODEM_PROC_CTX];
+ if (mem->size) {
+ req.hdr_proc_ctx_tbl_info_valid = 1;
+ req.hdr_proc_ctx_tbl_info.start =
+ ipa->mem_offset + mem->offset;
+ req.hdr_proc_ctx_tbl_info.end =
+ req.hdr_proc_ctx_tbl_info.start + mem->size - 1;
+ }
+
+ /* Nothing to report for the compression table (zip_tbl_info) */
+
+ mem = &ipa->mem[IPA_MEM_V4_ROUTE_HASHED];
+ if (mem->size) {
+ req.v4_hash_route_tbl_info_valid = 1;
+ req.v4_hash_route_tbl_info.start =
+ ipa->mem_offset + mem->offset;
+ req.v4_hash_route_tbl_info.count =
+ mem->size / IPA_TABLE_ENTRY_SIZE;
+ }
+
+ mem = &ipa->mem[IPA_MEM_V6_ROUTE_HASHED];
+ if (mem->size) {
+ req.v6_hash_route_tbl_info_valid = 1;
+ req.v6_hash_route_tbl_info.start =
+ ipa->mem_offset + mem->offset;
+ req.v6_hash_route_tbl_info.count =
+ mem->size / IPA_TABLE_ENTRY_SIZE;
+ }
+
+ mem = &ipa->mem[IPA_MEM_V4_FILTER_HASHED];
+ if (mem->size) {
+ req.v4_hash_filter_tbl_start_valid = 1;
+ req.v4_hash_filter_tbl_start = ipa->mem_offset + mem->offset;
+ }
+
+ mem = &ipa->mem[IPA_MEM_V6_FILTER_HASHED];
+ if (mem->size) {
+ req.v6_hash_filter_tbl_start_valid = 1;
+ req.v6_hash_filter_tbl_start = ipa->mem_offset + mem->offset;
+ }
+
+ /* None of the stats fields are valid (IPA v4.0 and above) */
+
+ if (ipa->version != IPA_VERSION_3_5_1) {
+ mem = &ipa->mem[IPA_MEM_STATS_QUOTA];
+ if (mem->size) {
+ req.hw_stats_quota_base_addr_valid = 1;
+ req.hw_stats_quota_base_addr =
+ ipa->mem_offset + mem->offset;
+ req.hw_stats_quota_size_valid = 1;
+ req.hw_stats_quota_size = ipa->mem_offset + mem->size;
+ }
+
+ mem = &ipa->mem[IPA_MEM_STATS_DROP];
+ if (mem->size) {
+ req.hw_stats_drop_base_addr_valid = 1;
+ req.hw_stats_drop_base_addr =
+ ipa->mem_offset + mem->offset;
+ req.hw_stats_drop_size_valid = 1;
+ req.hw_stats_drop_size = ipa->mem_offset + mem->size;
+ }
+ }
+
+ return &req;
+}
+
+/* Send an INIT_DRIVER request to the modem, and wait for it to complete. */
+static void ipa_client_init_driver_work(struct work_struct *work)
+{
+ unsigned long timeout = msecs_to_jiffies(QMI_INIT_DRIVER_TIMEOUT);
+ const struct ipa_init_modem_driver_req *req;
+ struct ipa_qmi *ipa_qmi;
+ struct qmi_handle *qmi;
+ struct qmi_txn txn;
+ struct device *dev;
+ struct ipa *ipa;
+ int ret;
+
+ ipa_qmi = container_of(work, struct ipa_qmi, init_driver_work);
+ qmi = &ipa_qmi->client_handle,
+
+ ipa = container_of(ipa_qmi, struct ipa, qmi);
+ dev = &ipa->pdev->dev;
+
+ ret = qmi_txn_init(qmi, &txn, NULL, NULL);
+ if (ret < 0) {
+ dev_err(dev, "error %d preparing init driver request\n", ret);
+ return;
+ }
+
+ /* Send the request, and if successful wait for its response */
+ req = init_modem_driver_req(ipa_qmi);
+ ret = qmi_send_request(qmi, &ipa_qmi->modem_sq, &txn,
+ IPA_QMI_INIT_DRIVER, IPA_QMI_INIT_DRIVER_REQ_SZ,
+ ipa_init_modem_driver_req_ei, req);
+ if (ret)
+ dev_err(dev, "error %d sending init driver request\n", ret);
+ else if ((ret = qmi_txn_wait(&txn, timeout)))
+ dev_err(dev, "error %d awaiting init driver response\n", ret);
+
+ if (!ret) {
+ ipa_qmi->modem_ready = true;
+ ipa_qmi_ready(ipa_qmi); /* We might be ready now */
+ } else {
+ /* If any error occurs we need to cancel the transaction */
+ qmi_txn_cancel(&txn);
+ }
+}
+
+/* The modem server is now available. We will send an INIT_DRIVER request
+ * to the modem, but can't wait for it to complete in this callback thread.
+ * Schedule a worker on the global workqueue to do that for us.
+ */
+static int
+ipa_client_new_server(struct qmi_handle *qmi, struct qmi_service *svc)
+{
+ struct ipa_qmi *ipa_qmi;
+
+ ipa_qmi = container_of(qmi, struct ipa_qmi, client_handle);
+
+ ipa_qmi->modem_sq.sq_family = AF_QIPCRTR;
+ ipa_qmi->modem_sq.sq_node = svc->node;
+ ipa_qmi->modem_sq.sq_port = svc->port;
+
+ schedule_work(&ipa_qmi->init_driver_work);
+
+ return 0;
+}
+
+static struct qmi_ops ipa_client_ops = {
+ .new_server = ipa_client_new_server,
+};
+
+/* This is called by ipa_setup(). We can be informed via remoteproc that
+ * the modem has shut down, in which case this function will be called
+ * again to prepare for it coming back up again.
+ */
+int ipa_qmi_setup(struct ipa *ipa)
+{
+ struct ipa_qmi *ipa_qmi = &ipa->qmi;
+ int ret;
+
+ ipa_qmi->initial_boot = true;
+
+ /* The server handle is used to handle the DRIVER_INIT_COMPLETE
+ * request on the first modem boot. It also receives the
+ * INDICATION_REGISTER request on the first boot and (optionally)
+ * subsequent boots. The INIT_COMPLETE indication message is
+ * sent over the server handle if requested.
+ */
+ ret = qmi_handle_init(&ipa_qmi->server_handle,
+ IPA_QMI_SERVER_MAX_RCV_SZ, &ipa_server_ops,
+ ipa_server_msg_handlers);
+ if (ret)
+ return ret;
+
+ ret = qmi_add_server(&ipa_qmi->server_handle, IPA_HOST_SERVICE_SVC_ID,
+ IPA_HOST_SVC_VERS, IPA_HOST_SERVICE_INS_ID);
+ if (ret)
+ goto err_server_handle_release;
+
+ /* The client handle is only used for sending an INIT_DRIVER request
+ * to the modem, and receiving its response message.
+ */
+ ret = qmi_handle_init(&ipa_qmi->client_handle,
+ IPA_QMI_CLIENT_MAX_RCV_SZ, &ipa_client_ops,
+ ipa_client_msg_handlers);
+ if (ret)
+ goto err_server_handle_release;
+
+ /* We need this ready before the service lookup is added */
+ INIT_WORK(&ipa_qmi->init_driver_work, ipa_client_init_driver_work);
+
+ ret = qmi_add_lookup(&ipa_qmi->client_handle, IPA_MODEM_SERVICE_SVC_ID,
+ IPA_MODEM_SVC_VERS, IPA_MODEM_SERVICE_INS_ID);
+ if (ret)
+ goto err_client_handle_release;
+
+ return 0;
+
+err_client_handle_release:
+ /* Releasing the handle also removes registered lookups */
+ qmi_handle_release(&ipa_qmi->client_handle);
+ memset(&ipa_qmi->client_handle, 0, sizeof(ipa_qmi->client_handle));
+err_server_handle_release:
+ /* Releasing the handle also removes registered services */
+ qmi_handle_release(&ipa_qmi->server_handle);
+ memset(&ipa_qmi->server_handle, 0, sizeof(ipa_qmi->server_handle));
+
+ return ret;
+}
+
+void ipa_qmi_teardown(struct ipa *ipa)
+{
+ cancel_work_sync(&ipa->qmi.init_driver_work);
+
+ qmi_handle_release(&ipa->qmi.client_handle);
+ memset(&ipa->qmi.client_handle, 0, sizeof(ipa->qmi.client_handle));
+
+ qmi_handle_release(&ipa->qmi.server_handle);
+ memset(&ipa->qmi.server_handle, 0, sizeof(ipa->qmi.server_handle));
+}
--- /dev/null
+/* SPDX-License-Identifier: GPL-2.0 */
+
+/* Copyright (c) 2018, The Linux Foundation. All rights reserved.
+ * Copyright (C) 2018-2020 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
+ * @initialized - whether QMI initialization has completed
+ * @indication_register_received - tracks modem request receipt
+ * @init_driver_response_received - tracks modem response receipt
+ */
+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;
+};
+
+int ipa_qmi_setup(struct ipa *ipa);
+void ipa_qmi_teardown(struct ipa *ipa);
+
+#endif /* !_IPA_QMI_H_ */
--- /dev/null
+// SPDX-License-Identifier: GPL-2.0
+
+/* Copyright (c) 2018, The Linux Foundation. All rights reserved.
+ * Copyright (C) 2018-2020 Linaro Ltd.
+ */
+#include <linux/stddef.h>
+#include <linux/soc/qcom/qmi.h>
+
+#include "ipa_qmi_msg.h"
+
+/* QMI message structure definition for struct ipa_indication_register_req */
+struct qmi_elem_info ipa_indication_register_req_ei[] = {
+ {
+ .data_type = QMI_OPT_FLAG,
+ .elem_len = 1,
+ .elem_size =
+ sizeof_field(struct ipa_indication_register_req,
+ master_driver_init_complete_valid),
+ .tlv_type = 0x10,
+ .offset = offsetof(struct ipa_indication_register_req,
+ master_driver_init_complete_valid),
+ },
+ {
+ .data_type = QMI_UNSIGNED_1_BYTE,
+ .elem_len = 1,
+ .elem_size =
+ sizeof_field(struct ipa_indication_register_req,
+ master_driver_init_complete),
+ .tlv_type = 0x10,
+ .offset = offsetof(struct ipa_indication_register_req,
+ master_driver_init_complete),
+ },
+ {
+ .data_type = QMI_OPT_FLAG,
+ .elem_len = 1,
+ .elem_size =
+ sizeof_field(struct ipa_indication_register_req,
+ data_usage_quota_reached_valid),
+ .tlv_type = 0x11,
+ .offset = offsetof(struct ipa_indication_register_req,
+ data_usage_quota_reached_valid),
+ },
+ {
+ .data_type = QMI_UNSIGNED_1_BYTE,
+ .elem_len = 1,
+ .elem_size =
+ sizeof_field(struct ipa_indication_register_req,
+ data_usage_quota_reached),
+ .tlv_type = 0x11,
+ .offset = offsetof(struct ipa_indication_register_req,
+ data_usage_quota_reached),
+ },
+ {
+ .data_type = QMI_OPT_FLAG,
+ .elem_len = 1,
+ .elem_size =
+ sizeof_field(struct ipa_indication_register_req,
+ ipa_mhi_ready_ind_valid),
+ .tlv_type = 0x11,
+ .offset = offsetof(struct ipa_indication_register_req,
+ ipa_mhi_ready_ind_valid),
+ },
+ {
+ .data_type = QMI_UNSIGNED_1_BYTE,
+ .elem_len = 1,
+ .elem_size =
+ sizeof_field(struct ipa_indication_register_req,
+ ipa_mhi_ready_ind),
+ .tlv_type = 0x11,
+ .offset = offsetof(struct ipa_indication_register_req,
+ ipa_mhi_ready_ind),
+ },
+ {
+ .data_type = QMI_EOTI,
+ },
+};
+
+/* QMI message structure definition for struct ipa_indication_register_rsp */
+struct qmi_elem_info ipa_indication_register_rsp_ei[] = {
+ {
+ .data_type = QMI_STRUCT,
+ .elem_len = 1,
+ .elem_size =
+ sizeof_field(struct ipa_indication_register_rsp,
+ rsp),
+ .tlv_type = 0x02,
+ .offset = offsetof(struct ipa_indication_register_rsp,
+ rsp),
+ .ei_array = qmi_response_type_v01_ei,
+ },
+ {
+ .data_type = QMI_EOTI,
+ },
+};
+
+/* QMI message structure definition for struct ipa_driver_init_complete_req */
+struct qmi_elem_info ipa_driver_init_complete_req_ei[] = {
+ {
+ .data_type = QMI_UNSIGNED_1_BYTE,
+ .elem_len = 1,
+ .elem_size =
+ sizeof_field(struct ipa_driver_init_complete_req,
+ status),
+ .tlv_type = 0x01,
+ .offset = offsetof(struct ipa_driver_init_complete_req,
+ status),
+ },
+ {
+ .data_type = QMI_EOTI,
+ },
+};
+
+/* QMI message structure definition for struct ipa_driver_init_complete_rsp */
+struct qmi_elem_info ipa_driver_init_complete_rsp_ei[] = {
+ {
+ .data_type = QMI_STRUCT,
+ .elem_len = 1,
+ .elem_size =
+ sizeof_field(struct ipa_driver_init_complete_rsp,
+ rsp),
+ .tlv_type = 0x02,
+ .elem_size = offsetof(struct ipa_driver_init_complete_rsp,
+ rsp),
+ .ei_array = qmi_response_type_v01_ei,
+ },
+ {
+ .data_type = QMI_EOTI,
+ },
+};
+
+/* QMI message structure definition for struct ipa_init_complete_ind */
+struct qmi_elem_info ipa_init_complete_ind_ei[] = {
+ {
+ .data_type = QMI_STRUCT,
+ .elem_len = 1,
+ .elem_size =
+ sizeof_field(struct ipa_init_complete_ind,
+ status),
+ .tlv_type = 0x02,
+ .elem_size = offsetof(struct ipa_init_complete_ind,
+ status),
+ .ei_array = qmi_response_type_v01_ei,
+ },
+ {
+ .data_type = QMI_EOTI,
+ },
+};
+
+/* QMI message structure definition for struct ipa_mem_bounds */
+struct qmi_elem_info ipa_mem_bounds_ei[] = {
+ {
+ .data_type = QMI_UNSIGNED_4_BYTE,
+ .elem_len = 1,
+ .elem_size =
+ sizeof_field(struct ipa_mem_bounds, start),
+ .offset = offsetof(struct ipa_mem_bounds, start),
+ },
+ {
+ .data_type = QMI_UNSIGNED_4_BYTE,
+ .elem_len = 1,
+ .elem_size =
+ sizeof_field(struct ipa_mem_bounds, end),
+ .offset = offsetof(struct ipa_mem_bounds, end),
+ },
+ {
+ .data_type = QMI_EOTI,
+ },
+};
+
+/* QMI message structure definition for struct ipa_mem_array */
+struct qmi_elem_info ipa_mem_array_ei[] = {
+ {
+ .data_type = QMI_UNSIGNED_4_BYTE,
+ .elem_len = 1,
+ .elem_size =
+ sizeof_field(struct ipa_mem_array, start),
+ .offset = offsetof(struct ipa_mem_array, start),
+ },
+ {
+ .data_type = QMI_UNSIGNED_4_BYTE,
+ .elem_len = 1,
+ .elem_size =
+ sizeof_field(struct ipa_mem_array, count),
+ .offset = offsetof(struct ipa_mem_array, count),
+ },
+ {
+ .data_type = QMI_EOTI,
+ },
+};
+
+/* QMI message structure definition for struct ipa_mem_range */
+struct qmi_elem_info ipa_mem_range_ei[] = {
+ {
+ .data_type = QMI_UNSIGNED_4_BYTE,
+ .elem_len = 1,
+ .elem_size =
+ sizeof_field(struct ipa_mem_range, start),
+ .offset = offsetof(struct ipa_mem_range, start),
+ },
+ {
+ .data_type = QMI_UNSIGNED_4_BYTE,
+ .elem_len = 1,
+ .elem_size =
+ sizeof_field(struct ipa_mem_range, size),
+ .offset = offsetof(struct ipa_mem_range, size),
+ },
+ {
+ .data_type = QMI_EOTI,
+ },
+};
+
+/* QMI message structure definition for struct ipa_init_modem_driver_req */
+struct qmi_elem_info ipa_init_modem_driver_req_ei[] = {
+ {
+ .data_type = QMI_OPT_FLAG,
+ .elem_len = 1,
+ .elem_size =
+ sizeof_field(struct ipa_init_modem_driver_req,
+ platform_type_valid),
+ .tlv_type = 0x10,
+ .elem_size = offsetof(struct ipa_init_modem_driver_req,
+ platform_type_valid),
+ },
+ {
+ .data_type = QMI_SIGNED_4_BYTE_ENUM,
+ .elem_len = 1,
+ .elem_size =
+ sizeof_field(struct ipa_init_modem_driver_req,
+ platform_type),
+ .tlv_type = 0x10,
+ .offset = offsetof(struct ipa_init_modem_driver_req,
+ platform_type),
+ },
+ {
+ .data_type = QMI_OPT_FLAG,
+ .elem_len = 1,
+ .elem_size =
+ sizeof_field(struct ipa_init_modem_driver_req,
+ hdr_tbl_info_valid),
+ .tlv_type = 0x11,
+ .offset = offsetof(struct ipa_init_modem_driver_req,
+ hdr_tbl_info_valid),
+ },
+ {
+ .data_type = QMI_STRUCT,
+ .elem_len = 1,
+ .elem_size =
+ sizeof_field(struct ipa_init_modem_driver_req,
+ hdr_tbl_info),
+ .tlv_type = 0x11,
+ .offset = offsetof(struct ipa_init_modem_driver_req,
+ hdr_tbl_info),
+ .ei_array = ipa_mem_bounds_ei,
+ },
+ {
+ .data_type = QMI_OPT_FLAG,
+ .elem_len = 1,
+ .elem_size =
+ sizeof_field(struct ipa_init_modem_driver_req,
+ v4_route_tbl_info_valid),
+ .tlv_type = 0x12,
+ .offset = offsetof(struct ipa_init_modem_driver_req,
+ v4_route_tbl_info_valid),
+ },
+ {
+ .data_type = QMI_STRUCT,
+ .elem_len = 1,
+ .elem_size =
+ sizeof_field(struct ipa_init_modem_driver_req,
+ v4_route_tbl_info),
+ .tlv_type = 0x12,
+ .offset = offsetof(struct ipa_init_modem_driver_req,
+ v4_route_tbl_info),
+ .ei_array = ipa_mem_array_ei,
+ },
+ {
+ .data_type = QMI_OPT_FLAG,
+ .elem_len = 1,
+ .elem_size =
+ sizeof_field(struct ipa_init_modem_driver_req,
+ v6_route_tbl_info_valid),
+ .tlv_type = 0x13,
+ .offset = offsetof(struct ipa_init_modem_driver_req,
+ v6_route_tbl_info_valid),
+ },
+ {
+ .data_type = QMI_STRUCT,
+ .elem_len = 1,
+ .elem_size =
+ sizeof_field(struct ipa_init_modem_driver_req,
+ v6_route_tbl_info),
+ .tlv_type = 0x13,
+ .offset = offsetof(struct ipa_init_modem_driver_req,
+ v6_route_tbl_info),
+ .ei_array = ipa_mem_array_ei,
+ },
+ {
+ .data_type = QMI_OPT_FLAG,
+ .elem_len = 1,
+ .elem_size =
+ sizeof_field(struct ipa_init_modem_driver_req,
+ v4_filter_tbl_start_valid),
+ .tlv_type = 0x14,
+ .offset = offsetof(struct ipa_init_modem_driver_req,
+ v4_filter_tbl_start_valid),
+ },
+ {
+ .data_type = QMI_UNSIGNED_4_BYTE,
+ .elem_len = 1,
+ .elem_size =
+ sizeof_field(struct ipa_init_modem_driver_req,
+ v4_filter_tbl_start),
+ .tlv_type = 0x14,
+ .offset = offsetof(struct ipa_init_modem_driver_req,
+ v4_filter_tbl_start),
+ },
+ {
+ .data_type = QMI_OPT_FLAG,
+ .elem_len = 1,
+ .elem_size =
+ sizeof_field(struct ipa_init_modem_driver_req,
+ v6_filter_tbl_start_valid),
+ .tlv_type = 0x15,
+ .offset = offsetof(struct ipa_init_modem_driver_req,
+ v6_filter_tbl_start_valid),
+ },
+ {
+ .data_type = QMI_UNSIGNED_4_BYTE,
+ .elem_len = 1,
+ .elem_size =
+ sizeof_field(struct ipa_init_modem_driver_req,
+ v6_filter_tbl_start),
+ .tlv_type = 0x15,
+ .offset = offsetof(struct ipa_init_modem_driver_req,
+ v6_filter_tbl_start),
+ },
+ {
+ .data_type = QMI_OPT_FLAG,
+ .elem_len = 1,
+ .elem_size =
+ sizeof_field(struct ipa_init_modem_driver_req,
+ modem_mem_info_valid),
+ .tlv_type = 0x16,
+ .offset = offsetof(struct ipa_init_modem_driver_req,
+ modem_mem_info_valid),
+ },
+ {
+ .data_type = QMI_STRUCT,
+ .elem_len = 1,
+ .elem_size =
+ sizeof_field(struct ipa_init_modem_driver_req,
+ modem_mem_info),
+ .tlv_type = 0x16,
+ .offset = offsetof(struct ipa_init_modem_driver_req,
+ modem_mem_info),
+ .ei_array = ipa_mem_range_ei,
+ },
+ {
+ .data_type = QMI_OPT_FLAG,
+ .elem_len = 1,
+ .elem_size =
+ sizeof_field(struct ipa_init_modem_driver_req,
+ ctrl_comm_dest_end_pt_valid),
+ .tlv_type = 0x17,
+ .offset = offsetof(struct ipa_init_modem_driver_req,
+ ctrl_comm_dest_end_pt_valid),
+ },
+ {
+ .data_type = QMI_UNSIGNED_4_BYTE,
+ .elem_len = 1,
+ .elem_size =
+ sizeof_field(struct ipa_init_modem_driver_req,
+ ctrl_comm_dest_end_pt),
+ .tlv_type = 0x17,
+ .offset = offsetof(struct ipa_init_modem_driver_req,
+ ctrl_comm_dest_end_pt),
+ },
+ {
+ .data_type = QMI_OPT_FLAG,
+ .elem_len = 1,
+ .elem_size =
+ sizeof_field(struct ipa_init_modem_driver_req,
+ skip_uc_load_valid),
+ .tlv_type = 0x18,
+ .offset = offsetof(struct ipa_init_modem_driver_req,
+ skip_uc_load_valid),
+ },
+ {
+ .data_type = QMI_UNSIGNED_1_BYTE,
+ .elem_len = 1,
+ .elem_size =
+ sizeof_field(struct ipa_init_modem_driver_req,
+ skip_uc_load),
+ .tlv_type = 0x18,
+ .offset = offsetof(struct ipa_init_modem_driver_req,
+ skip_uc_load),
+ },
+ {
+ .data_type = QMI_OPT_FLAG,
+ .elem_len = 1,
+ .elem_size =
+ sizeof_field(struct ipa_init_modem_driver_req,
+ hdr_proc_ctx_tbl_info_valid),
+ .tlv_type = 0x19,
+ .offset = offsetof(struct ipa_init_modem_driver_req,
+ hdr_proc_ctx_tbl_info_valid),
+ },
+ {
+ .data_type = QMI_STRUCT,
+ .elem_len = 1,
+ .elem_size =
+ sizeof_field(struct ipa_init_modem_driver_req,
+ hdr_proc_ctx_tbl_info),
+ .tlv_type = 0x19,
+ .offset = offsetof(struct ipa_init_modem_driver_req,
+ hdr_proc_ctx_tbl_info),
+ .ei_array = ipa_mem_bounds_ei,
+ },
+ {
+ .data_type = QMI_OPT_FLAG,
+ .elem_len = 1,
+ .elem_size =
+ sizeof_field(struct ipa_init_modem_driver_req,
+ zip_tbl_info_valid),
+ .tlv_type = 0x1a,
+ .offset = offsetof(struct ipa_init_modem_driver_req,
+ zip_tbl_info_valid),
+ },
+ {
+ .data_type = QMI_STRUCT,
+ .elem_len = 1,
+ .elem_size =
+ sizeof_field(struct ipa_init_modem_driver_req,
+ zip_tbl_info),
+ .tlv_type = 0x1a,
+ .offset = offsetof(struct ipa_init_modem_driver_req,
+ zip_tbl_info),
+ .ei_array = ipa_mem_bounds_ei,
+ },
+ {
+ .data_type = QMI_OPT_FLAG,
+ .elem_len = 1,
+ .elem_size =
+ sizeof_field(struct ipa_init_modem_driver_req,
+ v4_hash_route_tbl_info_valid),
+ .tlv_type = 0x1b,
+ .offset = offsetof(struct ipa_init_modem_driver_req,
+ v4_hash_route_tbl_info_valid),
+ },
+ {
+ .data_type = QMI_STRUCT,
+ .elem_len = 1,
+ .elem_size =
+ sizeof_field(struct ipa_init_modem_driver_req,
+ v4_hash_route_tbl_info),
+ .tlv_type = 0x1b,
+ .offset = offsetof(struct ipa_init_modem_driver_req,
+ v4_hash_route_tbl_info),
+ .ei_array = ipa_mem_array_ei,
+ },
+ {
+ .data_type = QMI_OPT_FLAG,
+ .elem_len = 1,
+ .elem_size =
+ sizeof_field(struct ipa_init_modem_driver_req,
+ v6_hash_route_tbl_info_valid),
+ .tlv_type = 0x1c,
+ .offset = offsetof(struct ipa_init_modem_driver_req,
+ v6_hash_route_tbl_info_valid),
+ },
+ {
+ .data_type = QMI_STRUCT,
+ .elem_len = 1,
+ .elem_size =
+ sizeof_field(struct ipa_init_modem_driver_req,
+ v6_hash_route_tbl_info),
+ .tlv_type = 0x1c,
+ .offset = offsetof(struct ipa_init_modem_driver_req,
+ v6_hash_route_tbl_info),
+ .ei_array = ipa_mem_array_ei,
+ },
+ {
+ .data_type = QMI_OPT_FLAG,
+ .elem_len = 1,
+ .elem_size =
+ sizeof_field(struct ipa_init_modem_driver_req,
+ v4_hash_filter_tbl_start_valid),
+ .tlv_type = 0x1d,
+ .offset = offsetof(struct ipa_init_modem_driver_req,
+ v4_hash_filter_tbl_start_valid),
+ },
+ {
+ .data_type = QMI_UNSIGNED_4_BYTE,
+ .elem_len = 1,
+ .elem_size =
+ sizeof_field(struct ipa_init_modem_driver_req,
+ v4_hash_filter_tbl_start),
+ .tlv_type = 0x1d,
+ .offset = offsetof(struct ipa_init_modem_driver_req,
+ v4_hash_filter_tbl_start),
+ },
+ {
+ .data_type = QMI_OPT_FLAG,
+ .elem_len = 1,
+ .elem_size =
+ sizeof_field(struct ipa_init_modem_driver_req,
+ v6_hash_filter_tbl_start_valid),
+ .tlv_type = 0x1e,
+ .offset = offsetof(struct ipa_init_modem_driver_req,
+ v6_hash_filter_tbl_start_valid),
+ },
+ {
+ .data_type = QMI_UNSIGNED_4_BYTE,
+ .elem_len = 1,
+ .elem_size =
+ sizeof_field(struct ipa_init_modem_driver_req,
+ v6_hash_filter_tbl_start),
+ .tlv_type = 0x1e,
+ .offset = offsetof(struct ipa_init_modem_driver_req,
+ v6_hash_filter_tbl_start),
+ },
+ {
+ .data_type = QMI_OPT_FLAG,
+ .elem_len = 1,
+ .elem_size =
+ sizeof_field(struct ipa_init_modem_driver_req,
+ hw_stats_quota_base_addr_valid),
+ .tlv_type = 0x1f,
+ .offset = offsetof(struct ipa_init_modem_driver_req,
+ hw_stats_quota_base_addr_valid),
+ },
+ {
+ .data_type = QMI_SIGNED_4_BYTE_ENUM,
+ .elem_len = 1,
+ .elem_size =
+ sizeof_field(struct ipa_init_modem_driver_req,
+ hw_stats_quota_base_addr),
+ .tlv_type = 0x1f,
+ .offset = offsetof(struct ipa_init_modem_driver_req,
+ hw_stats_quota_base_addr),
+ },
+ {
+ .data_type = QMI_OPT_FLAG,
+ .elem_len = 1,
+ .elem_size =
+ sizeof_field(struct ipa_init_modem_driver_req,
+ hw_stats_quota_size_valid),
+ .tlv_type = 0x1f,
+ .offset = offsetof(struct ipa_init_modem_driver_req,
+ hw_stats_quota_size_valid),
+ },
+ {
+ .data_type = QMI_SIGNED_4_BYTE_ENUM,
+ .elem_len = 1,
+ .elem_size =
+ sizeof_field(struct ipa_init_modem_driver_req,
+ hw_stats_quota_size),
+ .tlv_type = 0x1f,
+ .offset = offsetof(struct ipa_init_modem_driver_req,
+ hw_stats_quota_size),
+ },
+ {
+ .data_type = QMI_OPT_FLAG,
+ .elem_len = 1,
+ .elem_size =
+ sizeof_field(struct ipa_init_modem_driver_req,
+ hw_stats_drop_size_valid),
+ .tlv_type = 0x1f,
+ .offset = offsetof(struct ipa_init_modem_driver_req,
+ hw_stats_drop_size_valid),
+ },
+ {
+ .data_type = QMI_SIGNED_4_BYTE_ENUM,
+ .elem_len = 1,
+ .elem_size =
+ sizeof_field(struct ipa_init_modem_driver_req,
+ hw_stats_drop_size),
+ .tlv_type = 0x1f,
+ .offset = offsetof(struct ipa_init_modem_driver_req,
+ hw_stats_drop_size),
+ },
+ {
+ .data_type = QMI_EOTI,
+ },
+};
+
+/* QMI message structure definition for struct ipa_init_modem_driver_rsp */
+struct qmi_elem_info ipa_init_modem_driver_rsp_ei[] = {
+ {
+ .data_type = QMI_STRUCT,
+ .elem_len = 1,
+ .elem_size =
+ sizeof_field(struct ipa_init_modem_driver_rsp,
+ rsp),
+ .tlv_type = 0x02,
+ .offset = offsetof(struct ipa_init_modem_driver_rsp,
+ rsp),
+ .ei_array = qmi_response_type_v01_ei,
+ },
+ {
+ .data_type = QMI_OPT_FLAG,
+ .elem_len = 1,
+ .elem_size =
+ sizeof_field(struct ipa_init_modem_driver_rsp,
+ ctrl_comm_dest_end_pt_valid),
+ .tlv_type = 0x10,
+ .offset = offsetof(struct ipa_init_modem_driver_rsp,
+ ctrl_comm_dest_end_pt_valid),
+ },
+ {
+ .data_type = QMI_UNSIGNED_4_BYTE,
+ .elem_len = 1,
+ .elem_size =
+ sizeof_field(struct ipa_init_modem_driver_rsp,
+ ctrl_comm_dest_end_pt),
+ .tlv_type = 0x10,
+ .offset = offsetof(struct ipa_init_modem_driver_rsp,
+ ctrl_comm_dest_end_pt),
+ },
+ {
+ .data_type = QMI_OPT_FLAG,
+ .elem_len = 1,
+ .elem_size =
+ sizeof_field(struct ipa_init_modem_driver_rsp,
+ default_end_pt_valid),
+ .tlv_type = 0x11,
+ .offset = offsetof(struct ipa_init_modem_driver_rsp,
+ default_end_pt_valid),
+ },
+ {
+ .data_type = QMI_UNSIGNED_4_BYTE,
+ .elem_len = 1,
+ .elem_size =
+ sizeof_field(struct ipa_init_modem_driver_rsp,
+ default_end_pt),
+ .tlv_type = 0x11,
+ .offset = offsetof(struct ipa_init_modem_driver_rsp,
+ default_end_pt),
+ },
+ {
+ .data_type = QMI_OPT_FLAG,
+ .elem_len = 1,
+ .elem_size =
+ sizeof_field(struct ipa_init_modem_driver_rsp,
+ modem_driver_init_pending_valid),
+ .tlv_type = 0x12,
+ .offset = offsetof(struct ipa_init_modem_driver_rsp,
+ modem_driver_init_pending_valid),
+ },
+ {
+ .data_type = QMI_UNSIGNED_1_BYTE,
+ .elem_len = 1,
+ .elem_size =
+ sizeof_field(struct ipa_init_modem_driver_rsp,
+ modem_driver_init_pending),
+ .tlv_type = 0x12,
+ .offset = offsetof(struct ipa_init_modem_driver_rsp,
+ modem_driver_init_pending),
+ },
+ {
+ .data_type = QMI_EOTI,
+ },
+};
--- /dev/null
+/* SPDX-License-Identifier: GPL-2.0 */
+
+/* Copyright (c) 2018, The Linux Foundation. All rights reserved.
+ * Copyright (C) 2018-2020 Linaro Ltd.
+ */
+#ifndef _IPA_QMI_MSG_H_
+#define _IPA_QMI_MSG_H_
+
+/* === Only "ipa_qmi" and "ipa_qmi_msg.c" should include this file === */
+
+#include <linux/types.h>
+#include <linux/soc/qcom/qmi.h>
+
+/* Request/response/indication QMI message ids used for IPA. Receiving
+ * end issues a response for requests; indications require no response.
+ */
+#define IPA_QMI_INDICATION_REGISTER 0x20 /* modem -> AP request */
+#define IPA_QMI_INIT_DRIVER 0x21 /* AP -> modem request */
+#define IPA_QMI_INIT_COMPLETE 0x22 /* AP -> modem indication */
+#define IPA_QMI_DRIVER_INIT_COMPLETE 0x35 /* modem -> AP request */
+
+/* The maximum size required for message types. These sizes include
+ * the message data, along with type (1 byte) and length (2 byte)
+ * information for each field. The qmi_send_*() interfaces require
+ * the message size to be provided.
+ */
+#define IPA_QMI_INDICATION_REGISTER_REQ_SZ 12 /* -> server handle */
+#define IPA_QMI_INDICATION_REGISTER_RSP_SZ 7 /* <- server handle */
+#define IPA_QMI_INIT_DRIVER_REQ_SZ 162 /* client handle -> */
+#define IPA_QMI_INIT_DRIVER_RSP_SZ 25 /* client handle <- */
+#define IPA_QMI_INIT_COMPLETE_IND_SZ 7 /* <- server handle */
+#define IPA_QMI_DRIVER_INIT_COMPLETE_REQ_SZ 4 /* -> server handle */
+#define IPA_QMI_DRIVER_INIT_COMPLETE_RSP_SZ 7 /* <- server handle */
+
+/* Maximum size of messages we expect the AP to receive (max of above) */
+#define IPA_QMI_SERVER_MAX_RCV_SZ 8
+#define IPA_QMI_CLIENT_MAX_RCV_SZ 25
+
+/* Request message for the IPA_QMI_INDICATION_REGISTER request */
+struct ipa_indication_register_req {
+ u8 master_driver_init_complete_valid;
+ u8 master_driver_init_complete;
+ u8 data_usage_quota_reached_valid;
+ u8 data_usage_quota_reached;
+ u8 ipa_mhi_ready_ind_valid;
+ u8 ipa_mhi_ready_ind;
+};
+
+/* The response to a IPA_QMI_INDICATION_REGISTER request consists only of
+ * a standard QMI response.
+ */
+struct ipa_indication_register_rsp {
+ struct qmi_response_type_v01 rsp;
+};
+
+/* Request message for the IPA_QMI_DRIVER_INIT_COMPLETE request */
+struct ipa_driver_init_complete_req {
+ u8 status;
+};
+
+/* The response to a IPA_QMI_DRIVER_INIT_COMPLETE request consists only
+ * of a standard QMI response.
+ */
+struct ipa_driver_init_complete_rsp {
+ struct qmi_response_type_v01 rsp;
+};
+
+/* The message for the IPA_QMI_INIT_COMPLETE_IND indication consists
+ * only of a standard QMI response.
+ */
+struct ipa_init_complete_ind {
+ struct qmi_response_type_v01 status;
+};
+
+/* The AP tells the modem its platform type. We assume Android. */
+enum ipa_platform_type {
+ IPA_QMI_PLATFORM_TYPE_INVALID = 0, /* Invalid */
+ IPA_QMI_PLATFORM_TYPE_TN = 1, /* Data card */
+ IPA_QMI_PLATFORM_TYPE_LE = 2, /* Data router */
+ IPA_QMI_PLATFORM_TYPE_MSM_ANDROID = 3, /* Android MSM */
+ IPA_QMI_PLATFORM_TYPE_MSM_WINDOWS = 4, /* Windows MSM */
+ IPA_QMI_PLATFORM_TYPE_MSM_QNX_V01 = 5, /* QNX MSM */
+};
+
+/* This defines the start and end offset of a range of memory. Both
+ * fields are offsets relative to the start of IPA shared memory.
+ * The end value is the last addressable byte *within* the range.
+ */
+struct ipa_mem_bounds {
+ u32 start;
+ u32 end;
+};
+
+/* This defines the location and size of an array. The start value
+ * is an offset relative to the start of IPA shared memory. The
+ * size of the array is implied by the number of entries (the entry
+ * size is assumed to be known).
+ */
+struct ipa_mem_array {
+ u32 start;
+ u32 count;
+};
+
+/* This defines the location and size of a range of memory. The
+ * start is an offset relative to the start of IPA shared memory.
+ * This differs from the ipa_mem_bounds structure in that the size
+ * (in bytes) of the memory region is specified rather than the
+ * offset of its last byte.
+ */
+struct ipa_mem_range {
+ u32 start;
+ u32 size;
+};
+
+/* The message for the IPA_QMI_INIT_DRIVER request contains information
+ * from the AP that affects modem initialization.
+ */
+struct ipa_init_modem_driver_req {
+ u8 platform_type_valid;
+ u32 platform_type; /* enum ipa_platform_type */
+
+ /* Modem header table information. This defines the IPA shared
+ * memory in which the modem may insert header table entries.
+ */
+ u8 hdr_tbl_info_valid;
+ struct ipa_mem_bounds hdr_tbl_info;
+
+ /* Routing table information. These define the location and size of
+ * non-hashable IPv4 and IPv6 filter tables. The start values are
+ * offsets relative to the start of IPA shared memory.
+ */
+ u8 v4_route_tbl_info_valid;
+ struct ipa_mem_array v4_route_tbl_info;
+ u8 v6_route_tbl_info_valid;
+ struct ipa_mem_array v6_route_tbl_info;
+
+ /* Filter table information. These define the location of the
+ * non-hashable IPv4 and IPv6 filter tables. The start values are
+ * offsets relative to the start of IPA shared memory.
+ */
+ u8 v4_filter_tbl_start_valid;
+ u32 v4_filter_tbl_start;
+ u8 v6_filter_tbl_start_valid;
+ u32 v6_filter_tbl_start;
+
+ /* Modem memory information. This defines the location and
+ * size of memory available for the modem to use.
+ */
+ u8 modem_mem_info_valid;
+ struct ipa_mem_range modem_mem_info;
+
+ /* This defines the destination endpoint on the AP to which
+ * the modem driver can send control commands. Must be less
+ * than ipa_endpoint_max().
+ */
+ u8 ctrl_comm_dest_end_pt_valid;
+ u32 ctrl_comm_dest_end_pt;
+
+ /* This defines whether the modem should load the microcontroller
+ * or not. It is unnecessary to reload it if the modem is being
+ * restarted.
+ *
+ * NOTE: this field is named "is_ssr_bootup" elsewhere.
+ */
+ u8 skip_uc_load_valid;
+ u8 skip_uc_load;
+
+ /* Processing context memory information. This defines the memory in
+ * which the modem may insert header processing context table entries.
+ */
+ u8 hdr_proc_ctx_tbl_info_valid;
+ struct ipa_mem_bounds hdr_proc_ctx_tbl_info;
+
+ /* Compression command memory information. This defines the memory
+ * in which the modem may insert compression/decompression commands.
+ */
+ u8 zip_tbl_info_valid;
+ struct ipa_mem_bounds zip_tbl_info;
+
+ /* Routing table information. These define the location and size
+ * of hashable IPv4 and IPv6 filter tables. The start values are
+ * offsets relative to the start of IPA shared memory.
+ */
+ u8 v4_hash_route_tbl_info_valid;
+ struct ipa_mem_array v4_hash_route_tbl_info;
+ u8 v6_hash_route_tbl_info_valid;
+ struct ipa_mem_array v6_hash_route_tbl_info;
+
+ /* Filter table information. These define the location and size
+ * of hashable IPv4 and IPv6 filter tables. The start values are
+ * offsets relative to the start of IPA shared memory.
+ */
+ u8 v4_hash_filter_tbl_start_valid;
+ u32 v4_hash_filter_tbl_start;
+ u8 v6_hash_filter_tbl_start_valid;
+ u32 v6_hash_filter_tbl_start;
+
+ /* Statistics information. These define the locations of the
+ * first and last statistics sub-regions. (IPA v4.0 and above)
+ */
+ u8 hw_stats_quota_base_addr_valid;
+ u32 hw_stats_quota_base_addr;
+ u8 hw_stats_quota_size_valid;
+ u32 hw_stats_quota_size;
+ u8 hw_stats_drop_base_addr_valid;
+ u32 hw_stats_drop_base_addr;
+ u8 hw_stats_drop_size_valid;
+ u32 hw_stats_drop_size;
+};
+
+/* The response to a IPA_QMI_INIT_DRIVER request begins with a standard
+ * QMI response, but contains other information as well. Currently we
+ * simply wait for the the INIT_DRIVER transaction to complete and
+ * ignore any other data that might be returned.
+ */
+struct ipa_init_modem_driver_rsp {
+ struct qmi_response_type_v01 rsp;
+
+ /* This defines the destination endpoint on the modem to which
+ * the AP driver can send control commands. Must be less than
+ * ipa_endpoint_max().
+ */
+ u8 ctrl_comm_dest_end_pt_valid;
+ u32 ctrl_comm_dest_end_pt;
+
+ /* This defines the default endpoint. The AP driver is not
+ * required to configure the hardware with this value. Must
+ * be less than ipa_endpoint_max().
+ */
+ u8 default_end_pt_valid;
+ u32 default_end_pt;
+
+ /* This defines whether a second handshake is required to complete
+ * initialization.
+ */
+ u8 modem_driver_init_pending_valid;
+ u8 modem_driver_init_pending;
+};
+
+/* Message structure definitions defined in "ipa_qmi_msg.c" */
+extern struct qmi_elem_info ipa_indication_register_req_ei[];
+extern struct qmi_elem_info ipa_indication_register_rsp_ei[];
+extern struct qmi_elem_info ipa_driver_init_complete_req_ei[];
+extern struct qmi_elem_info ipa_driver_init_complete_rsp_ei[];
+extern struct qmi_elem_info ipa_init_complete_ind_ei[];
+extern struct qmi_elem_info ipa_mem_bounds_ei[];
+extern struct qmi_elem_info ipa_mem_array_ei[];
+extern struct qmi_elem_info ipa_mem_range_ei[];
+extern struct qmi_elem_info ipa_init_modem_driver_req_ei[];
+extern struct qmi_elem_info ipa_init_modem_driver_rsp_ei[];
+
+#endif /* !_IPA_QMI_MSG_H_ */
--- /dev/null
+// SPDX-License-Identifier: GPL-2.0
+
+/* Copyright (c) 2012-2018, The Linux Foundation. All rights reserved.
+ * Copyright (C) 2019-2020 Linaro Ltd.
+ */
+
+#include <linux/types.h>
+#include <linux/device.h>
+#include <linux/interrupt.h>
+#include <linux/notifier.h>
+#include <linux/soc/qcom/smem.h>
+#include <linux/soc/qcom/smem_state.h>
+
+#include "ipa_smp2p.h"
+#include "ipa.h"
+#include "ipa_uc.h"
+#include "ipa_clock.h"
+
+/**
+ * DOC: IPA SMP2P communication with the modem
+ *
+ * SMP2P is a primitive communication mechanism available between the AP and
+ * the modem. The IPA driver uses this for two purposes: to enable the modem
+ * to state that the GSI hardware is ready to use; and to communicate the
+ * state of the IPA clock in the event of a crash.
+ *
+ * GSI needs to have early initialization completed before it can be used.
+ * This initialization is done either by Trust Zone or by the modem. In the
+ * latter case, the modem uses an SMP2P interrupt to tell the AP IPA driver
+ * when the GSI is ready to use.
+ *
+ * The modem is also able to inquire about the current state of the IPA
+ * clock by trigging another SMP2P interrupt to the AP. We communicate
+ * whether the clock is enabled using two SMP2P state bits--one to
+ * indicate the clock state (on or off), and a second to indicate the
+ * clock state bit is valid. The modem will poll the valid bit until it
+ * is set, and at that time records whether the AP has the IPA clock enabled.
+ *
+ * Finally, if the AP kernel panics, we update the SMP2P state bits even if
+ * we never receive an interrupt from the modem requesting this.
+ */
+
+/**
+ * struct ipa_smp2p - IPA SMP2P information
+ * @ipa: IPA pointer
+ * @valid_state: SMEM state indicating enabled state is valid
+ * @enabled_state: SMEM state to indicate clock is enabled
+ * @valid_bit: Valid bit in 32-bit SMEM state mask
+ * @enabled_bit: Enabled bit in 32-bit SMEM state mask
+ * @enabled_bit: Enabled bit in 32-bit SMEM state mask
+ * @clock_query_irq: IPA interrupt triggered by modem for clock query
+ * @setup_ready_irq: IPA interrupt triggered by modem to signal GSI ready
+ * @clock_on: Whether IPA clock is on
+ * @notified: Whether modem has been notified of clock state
+ * @disabled: Whether setup ready interrupt handling is disabled
+ * @mutex mutex: Motex protecting ready interrupt/shutdown interlock
+ * @panic_notifier: Panic notifier structure
+*/
+struct ipa_smp2p {
+ struct ipa *ipa;
+ struct qcom_smem_state *valid_state;
+ struct qcom_smem_state *enabled_state;
+ u32 valid_bit;
+ u32 enabled_bit;
+ u32 clock_query_irq;
+ u32 setup_ready_irq;
+ bool clock_on;
+ bool notified;
+ bool disabled;
+ struct mutex mutex;
+ struct notifier_block panic_notifier;
+};
+
+/**
+ * ipa_smp2p_notify() - use SMP2P to tell modem about IPA clock state
+ * @smp2p: SMP2P information
+ *
+ * This is called either when the modem has requested it (by triggering
+ * the modem clock query IPA interrupt) or whenever the AP is shutting down
+ * (via a panic notifier). It sets the two SMP2P state bits--one saying
+ * whether the IPA clock is running, and the other indicating the first bit
+ * is valid.
+ */
+static void ipa_smp2p_notify(struct ipa_smp2p *smp2p)
+{
+ u32 value;
+ u32 mask;
+
+ if (smp2p->notified)
+ return;
+
+ smp2p->clock_on = ipa_clock_get_additional(smp2p->ipa);
+
+ /* Signal whether the clock is enabled */
+ mask = BIT(smp2p->enabled_bit);
+ value = smp2p->clock_on ? mask : 0;
+ qcom_smem_state_update_bits(smp2p->enabled_state, mask, value);
+
+ /* Now indicate that the enabled flag is valid */
+ mask = BIT(smp2p->valid_bit);
+ value = mask;
+ qcom_smem_state_update_bits(smp2p->valid_state, mask, value);
+
+ smp2p->notified = true;
+}
+
+/* Threaded IRQ handler for modem "ipa-clock-query" SMP2P interrupt */
+static irqreturn_t ipa_smp2p_modem_clk_query_isr(int irq, void *dev_id)
+{
+ struct ipa_smp2p *smp2p = dev_id;
+
+ ipa_smp2p_notify(smp2p);
+
+ return IRQ_HANDLED;
+}
+
+static int ipa_smp2p_panic_notifier(struct notifier_block *nb,
+ unsigned long action, void *data)
+{
+ struct ipa_smp2p *smp2p;
+
+ smp2p = container_of(nb, struct ipa_smp2p, panic_notifier);
+
+ ipa_smp2p_notify(smp2p);
+
+ if (smp2p->clock_on)
+ ipa_uc_panic_notifier(smp2p->ipa);
+
+ return NOTIFY_DONE;
+}
+
+static int ipa_smp2p_panic_notifier_register(struct ipa_smp2p *smp2p)
+{
+ /* IPA panic handler needs to run before modem shuts down */
+ smp2p->panic_notifier.notifier_call = ipa_smp2p_panic_notifier;
+ smp2p->panic_notifier.priority = INT_MAX; /* Do it early */
+
+ return atomic_notifier_chain_register(&panic_notifier_list,
+ &smp2p->panic_notifier);
+}
+
+static void ipa_smp2p_panic_notifier_unregister(struct ipa_smp2p *smp2p)
+{
+ atomic_notifier_chain_unregister(&panic_notifier_list,
+ &smp2p->panic_notifier);
+}
+
+/* Threaded IRQ handler for modem "ipa-setup-ready" SMP2P interrupt */
+static irqreturn_t ipa_smp2p_modem_setup_ready_isr(int irq, void *dev_id)
+{
+ struct ipa_smp2p *smp2p = dev_id;
+
+ mutex_lock(&smp2p->mutex);
+
+ if (!smp2p->disabled) {
+ int ret;
+
+ ret = ipa_setup(smp2p->ipa);
+ if (ret)
+ dev_err(&smp2p->ipa->pdev->dev,
+ "error %d from ipa_setup()\n", ret);
+ smp2p->disabled = true;
+ }
+
+ mutex_unlock(&smp2p->mutex);
+
+ return IRQ_HANDLED;
+}
+
+/* Initialize SMP2P interrupts */
+static int ipa_smp2p_irq_init(struct ipa_smp2p *smp2p, const char *name,
+ irq_handler_t handler)
+{
+ struct device *dev = &smp2p->ipa->pdev->dev;
+ unsigned int irq;
+ int ret;
+
+ ret = platform_get_irq_byname(smp2p->ipa->pdev, name);
+ if (ret <= 0) {
+ dev_err(dev, "DT error %d getting \"%s\" IRQ property\n",
+ ret, name);
+ return ret ? : -EINVAL;
+ }
+ irq = ret;
+
+ ret = request_threaded_irq(irq, NULL, handler, 0, name, smp2p);
+ if (ret) {
+ dev_err(dev, "error %d requesting \"%s\" IRQ\n", ret, name);
+ return ret;
+ }
+
+ return irq;
+}
+
+static void ipa_smp2p_irq_exit(struct ipa_smp2p *smp2p, u32 irq)
+{
+ free_irq(irq, smp2p);
+}
+
+/* Drop the clock reference if it was taken in ipa_smp2p_notify() */
+static void ipa_smp2p_clock_release(struct ipa *ipa)
+{
+ if (!ipa->smp2p->clock_on)
+ return;
+
+ ipa_clock_put(ipa);
+ ipa->smp2p->clock_on = false;
+}
+
+/* Initialize the IPA SMP2P subsystem */
+int ipa_smp2p_init(struct ipa *ipa, bool modem_init)
+{
+ struct qcom_smem_state *enabled_state;
+ struct device *dev = &ipa->pdev->dev;
+ struct qcom_smem_state *valid_state;
+ struct ipa_smp2p *smp2p;
+ u32 enabled_bit;
+ u32 valid_bit;
+ int ret;
+
+ valid_state = qcom_smem_state_get(dev, "ipa-clock-enabled-valid",
+ &valid_bit);
+ if (IS_ERR(valid_state))
+ return PTR_ERR(valid_state);
+ if (valid_bit >= 32) /* BITS_PER_U32 */
+ return -EINVAL;
+
+ enabled_state = qcom_smem_state_get(dev, "ipa-clock-enabled",
+ &enabled_bit);
+ if (IS_ERR(enabled_state))
+ return PTR_ERR(enabled_state);
+ if (enabled_bit >= 32) /* BITS_PER_U32 */
+ return -EINVAL;
+
+ smp2p = kzalloc(sizeof(*smp2p), GFP_KERNEL);
+ if (!smp2p)
+ return -ENOMEM;
+
+ smp2p->ipa = ipa;
+
+ /* These fields are needed by the clock query interrupt
+ * handler, so initialize them now.
+ */
+ mutex_init(&smp2p->mutex);
+ smp2p->valid_state = valid_state;
+ smp2p->valid_bit = valid_bit;
+ smp2p->enabled_state = enabled_state;
+ smp2p->enabled_bit = enabled_bit;
+
+ /* We have enough information saved to handle notifications */
+ ipa->smp2p = smp2p;
+
+ ret = ipa_smp2p_irq_init(smp2p, "ipa-clock-query",
+ ipa_smp2p_modem_clk_query_isr);
+ if (ret < 0)
+ goto err_null_smp2p;
+ smp2p->clock_query_irq = ret;
+
+ ret = ipa_smp2p_panic_notifier_register(smp2p);
+ if (ret)
+ goto err_irq_exit;
+
+ if (modem_init) {
+ /* Result will be non-zero (negative for error) */
+ ret = ipa_smp2p_irq_init(smp2p, "ipa-setup-ready",
+ ipa_smp2p_modem_setup_ready_isr);
+ if (ret < 0)
+ goto err_notifier_unregister;
+ smp2p->setup_ready_irq = ret;
+ }
+
+ return 0;
+
+err_notifier_unregister:
+ ipa_smp2p_panic_notifier_unregister(smp2p);
+err_irq_exit:
+ ipa_smp2p_irq_exit(smp2p, smp2p->clock_query_irq);
+err_null_smp2p:
+ ipa->smp2p = NULL;
+ mutex_destroy(&smp2p->mutex);
+ kfree(smp2p);
+
+ return ret;
+}
+
+void ipa_smp2p_exit(struct ipa *ipa)
+{
+ struct ipa_smp2p *smp2p = ipa->smp2p;
+
+ if (smp2p->setup_ready_irq)
+ ipa_smp2p_irq_exit(smp2p, smp2p->setup_ready_irq);
+ ipa_smp2p_panic_notifier_unregister(smp2p);
+ ipa_smp2p_irq_exit(smp2p, smp2p->clock_query_irq);
+ /* We won't get notified any more; drop clock reference (if any) */
+ ipa_smp2p_clock_release(ipa);
+ ipa->smp2p = NULL;
+ mutex_destroy(&smp2p->mutex);
+ kfree(smp2p);
+}
+
+void ipa_smp2p_disable(struct ipa *ipa)
+{
+ struct ipa_smp2p *smp2p = ipa->smp2p;
+
+ if (!smp2p->setup_ready_irq)
+ return;
+
+ mutex_lock(&smp2p->mutex);
+
+ smp2p->disabled = true;
+
+ mutex_unlock(&smp2p->mutex);
+}
+
+/* Reset state tracking whether we have notified the modem */
+void ipa_smp2p_notify_reset(struct ipa *ipa)
+{
+ struct ipa_smp2p *smp2p = ipa->smp2p;
+ u32 mask;
+
+ if (!smp2p->notified)
+ return;
+
+ ipa_smp2p_clock_release(ipa);
+
+ /* Reset the clock enabled valid flag */
+ mask = BIT(smp2p->valid_bit);
+ qcom_smem_state_update_bits(smp2p->valid_state, mask, 0);
+
+ /* Mark the clock disabled for good measure... */
+ mask = BIT(smp2p->enabled_bit);
+ qcom_smem_state_update_bits(smp2p->enabled_state, mask, 0);
+
+ smp2p->notified = false;
+}
--- /dev/null
+/* SPDX-License-Identifier: GPL-2.0 */
+
+/* Copyright (c) 2012-2018, The Linux Foundation. All rights reserved.
+ * Copyright (C) 2019-2020 Linaro Ltd.
+ */
+#ifndef _IPA_SMP2P_H_
+#define _IPA_SMP2P_H_
+
+#include <linux/types.h>
+
+struct ipa;
+
+/**
+ * ipa_smp2p_init() - Initialize the IPA SMP2P subsystem
+ * @ipa: IPA pointer
+ * @modem_init: Whether the modem is responsible for GSI initialization
+ *
+ * @Return: 0 if successful, or a negative error code
+ *
+ */
+int ipa_smp2p_init(struct ipa *ipa, bool modem_init);
+
+/**
+ * ipa_smp2p_exit() - Inverse of ipa_smp2p_init()
+ * @ipa: IPA pointer
+ */
+void ipa_smp2p_exit(struct ipa *ipa);
+
+/**
+ * ipa_smp2p_disable() - Prevent "ipa-setup-ready" interrupt handling
+ * @IPA: IPA pointer
+ *
+ * Prevent handling of the "setup ready" interrupt from the modem.
+ * This is used before initiating shutdown of the driver.
+ */
+void ipa_smp2p_disable(struct ipa *ipa);
+
+/**
+ * ipa_smp2p_notify_reset() - Reset modem notification state
+ * @ipa: IPA pointer
+ *
+ * If the modem crashes it queries the IPA clock state. In cleaning
+ * up after such a crash this is used to reset some state maintained
+ * for managing this notification.
+ */
+void ipa_smp2p_notify_reset(struct ipa *ipa);
+
+#endif /* _IPA_SMP2P_H_ */
projects / users / hch / configfs.git / commitdiff