mirror of https://gitee.com/openkylin/linux.git
541 lines
18 KiB
C
541 lines
18 KiB
C
// 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 const 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 const 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 const 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 const 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));
|
|
}
|