Orange Pi5 kernel

^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300   1) // SPDX-License-Identifier: GPL-2.0
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300   2) 
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300   3) /* Copyright (c) 2013-2018, The Linux Foundation. All rights reserved.
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300   4)  * Copyright (C) 2018-2020 Linaro Ltd.
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300   5)  */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300   6) 
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300   7) #include <linux/types.h>
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300   8) #include <linux/string.h>
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300   9) #include <linux/slab.h>
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  10) #include <linux/qrtr.h>
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  11) #include <linux/soc/qcom/qmi.h>
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  12) 
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  13) #include "ipa.h"
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  14) #include "ipa_endpoint.h"
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  15) #include "ipa_mem.h"
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  16) #include "ipa_table.h"
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  17) #include "ipa_modem.h"
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  18) #include "ipa_qmi_msg.h"
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  19) 
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  20) /**
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  21)  * DOC: AP/Modem QMI Handshake
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  22)  *
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  23)  * The AP and modem perform a "handshake" at initialization time to ensure
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  24)  * both sides know when everything is ready to begin operating.  The AP
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  25)  * driver (this code) uses two QMI handles (endpoints) for this; a client
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  26)  * using a service on the modem, and server to service modem requests (and
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  27)  * to supply an indication message from the AP).  Once the handshake is
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  28)  * complete, the AP and modem may begin IPA operation.  This occurs
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  29)  * only when the AP IPA driver, modem IPA driver, and IPA microcontroller
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  30)  * are ready.
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  31)  *
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  32)  * The QMI service on the modem expects to receive an INIT_DRIVER request from
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  33)  * the AP, which contains parameters used by the modem during initialization.
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  34)  * The AP sends this request as soon as it is knows the modem side service
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  35)  * is available.  The modem responds to this request, and if this response
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  36)  * contains a success result, the AP knows the modem IPA driver is ready.
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  37)  *
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  38)  * The modem is responsible for loading firmware on the IPA microcontroller.
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  39)  * This occurs only during the initial modem boot.  The modem sends a
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  40)  * separate DRIVER_INIT_COMPLETE request to the AP to report that the
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  41)  * microcontroller is ready.  The AP may assume the microcontroller is
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  42)  * ready and remain so (even if the modem reboots) once it has received
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  43)  * and responded to this request.
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  44)  *
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  45)  * There is one final exchange involved in the handshake.  It is required
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  46)  * on the initial modem boot, but optional (but in practice does occur) on
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  47)  * subsequent boots.  The modem expects to receive a final INIT_COMPLETE
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  48)  * indication message from the AP when it is about to begin its normal
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  49)  * operation.  The AP will only send this message after it has received
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  50)  * and responded to an INDICATION_REGISTER request from the modem.
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  51)  *
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  52)  * So in summary:
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  53)  * - Whenever the AP learns the modem has booted and its IPA QMI service
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  54)  *   is available, it sends an INIT_DRIVER request to the modem.  The
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  55)  *   modem supplies a success response when it is ready to operate.
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  56)  * - On the initial boot, the modem sets up the IPA microcontroller, and
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  57)  *   sends a DRIVER_INIT_COMPLETE request to the AP when this is done.
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  58)  * - When the modem is ready to receive an INIT_COMPLETE indication from
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  59)  *   the AP, it sends an INDICATION_REGISTER request to the AP.
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  60)  * - On the initial modem boot, everything is ready when:
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  61)  *	- AP has received a success response from its INIT_DRIVER request
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  62)  *	- AP has responded to a DRIVER_INIT_COMPLETE request
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  63)  *	- AP has responded to an INDICATION_REGISTER request from the modem
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  64)  *	- AP has sent an INIT_COMPLETE indication to the modem
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  65)  * - On subsequent modem boots, everything is ready when:
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  66)  *	- AP has received a success response from its INIT_DRIVER request
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  67)  *	- AP has responded to a DRIVER_INIT_COMPLETE request
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  68)  * - The INDICATION_REGISTER request and INIT_COMPLETE indication are
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  69)  *   optional for non-initial modem boots, and have no bearing on the
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  70)  *   determination of when things are "ready"
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  71)  */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  72) 
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  73) #define IPA_HOST_SERVICE_SVC_ID		0x31
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  74) #define IPA_HOST_SVC_VERS		1
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  75) #define IPA_HOST_SERVICE_INS_ID		1
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  76) 
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  77) #define IPA_MODEM_SERVICE_SVC_ID	0x31
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  78) #define IPA_MODEM_SERVICE_INS_ID	2
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  79) #define IPA_MODEM_SVC_VERS		1
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  80) 
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  81) #define QMI_INIT_DRIVER_TIMEOUT		60000	/* A minute in milliseconds */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  82) 
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  83) /* Send an INIT_COMPLETE indication message to the modem */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  84) static void ipa_server_init_complete(struct ipa_qmi *ipa_qmi)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  85) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  86) 	struct ipa *ipa = container_of(ipa_qmi, struct ipa, qmi);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  87) 	struct qmi_handle *qmi = &ipa_qmi->server_handle;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  88) 	struct sockaddr_qrtr *sq = &ipa_qmi->modem_sq;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  89) 	struct ipa_init_complete_ind ind = { };
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  90) 	int ret;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  91) 
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  92) 	ind.status.result = QMI_RESULT_SUCCESS_V01;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  93) 	ind.status.error = QMI_ERR_NONE_V01;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  94) 
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  95) 	ret = qmi_send_indication(qmi, sq, IPA_QMI_INIT_COMPLETE,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  96) 				   IPA_QMI_INIT_COMPLETE_IND_SZ,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  97) 				   ipa_init_complete_ind_ei, &ind);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  98) 	if (ret)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  99) 		dev_err(&ipa->pdev->dev,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 100) 			"error %d sending init complete indication\n", ret);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 101) 	else
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 102) 		ipa_qmi->indication_sent = true;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 103) }
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 104) 
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 105) /* If requested (and not already sent) send the INIT_COMPLETE indication */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 106) static void ipa_qmi_indication(struct ipa_qmi *ipa_qmi)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 107) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 108) 	if (!ipa_qmi->indication_requested)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 109) 		return;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 110) 
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 111) 	if (ipa_qmi->indication_sent)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 112) 		return;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 113) 
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 114) 	ipa_server_init_complete(ipa_qmi);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 115) }
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 116) 
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 117) /* Determine whether everything is ready to start normal operation.
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 118)  * We know everything (else) is ready when we know the IPA driver on
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 119)  * the modem is ready, and the microcontroller is ready.
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 120)  *
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 121)  * When the modem boots (or reboots), the handshake sequence starts
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 122)  * with the AP sending the modem an INIT_DRIVER request.  Within
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 123)  * that request, the uc_loaded flag will be zero (false) for an
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 124)  * initial boot, non-zero (true) for a subsequent (SSR) boot.
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 125)  */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 126) static void ipa_qmi_ready(struct ipa_qmi *ipa_qmi)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 127) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 128) 	struct ipa *ipa = container_of(ipa_qmi, struct ipa, qmi);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 129) 	int ret;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 130) 
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 131) 	/* We aren't ready until the modem and microcontroller are */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 132) 	if (!ipa_qmi->modem_ready || !ipa_qmi->uc_ready)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 133) 		return;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 134) 
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 135) 	/* Send the indication message if it was requested */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 136) 	ipa_qmi_indication(ipa_qmi);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 137) 
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 138) 	/* The initial boot requires us to send the indication. */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 139) 	if (ipa_qmi->initial_boot) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 140) 		if (!ipa_qmi->indication_sent)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 141) 			return;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 142) 
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 143) 		/* The initial modem boot completed successfully */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 144) 		ipa_qmi->initial_boot = false;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 145) 	}
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 146) 
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 147) 	/* We're ready.  Start up normal operation */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 148) 	ipa = container_of(ipa_qmi, struct ipa, qmi);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 149) 	ret = ipa_modem_start(ipa);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 150) 	if (ret)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 151) 		dev_err(&ipa->pdev->dev, "error %d starting modem\n", ret);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 152) }
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 153) 
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 154) /* All QMI clients from the modem node are gone (modem shut down or crashed). */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 155) static void ipa_server_bye(struct qmi_handle *qmi, unsigned int node)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 156) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 157) 	struct ipa_qmi *ipa_qmi;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 158) 
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 159) 	ipa_qmi = container_of(qmi, struct ipa_qmi, server_handle);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 160) 
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 161) 	/* The modem client and server go away at the same time */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 162) 	memset(&ipa_qmi->modem_sq, 0, sizeof(ipa_qmi->modem_sq));
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 163) 
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 164) 	/* initial_boot doesn't change when modem reboots */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 165) 	/* uc_ready doesn't change when modem reboots */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 166) 	ipa_qmi->modem_ready = false;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 167) 	ipa_qmi->indication_requested = false;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 168) 	ipa_qmi->indication_sent = false;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 169) }
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 170) 
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 171) static struct qmi_ops ipa_server_ops = {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 172) 	.bye		= ipa_server_bye,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 173) };
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 174) 
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 175) /* Callback function to handle an INDICATION_REGISTER request message from the
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 176)  * modem.  This informs the AP that the modem is now ready to receive the
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 177)  * INIT_COMPLETE indication message.
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 178)  */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 179) static void ipa_server_indication_register(struct qmi_handle *qmi,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 180) 					   struct sockaddr_qrtr *sq,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 181) 					   struct qmi_txn *txn,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 182) 					   const void *decoded)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 183) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 184) 	struct ipa_indication_register_rsp rsp = { };
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 185) 	struct ipa_qmi *ipa_qmi;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 186) 	struct ipa *ipa;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 187) 	int ret;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 188) 
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 189) 	ipa_qmi = container_of(qmi, struct ipa_qmi, server_handle);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 190) 	ipa = container_of(ipa_qmi, struct ipa, qmi);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 191) 
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 192) 	rsp.rsp.result = QMI_RESULT_SUCCESS_V01;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 193) 	rsp.rsp.error = QMI_ERR_NONE_V01;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 194) 
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 195) 	ret = qmi_send_response(qmi, sq, txn, IPA_QMI_INDICATION_REGISTER,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 196) 				IPA_QMI_INDICATION_REGISTER_RSP_SZ,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 197) 				ipa_indication_register_rsp_ei, &rsp);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 198) 	if (!ret) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 199) 		ipa_qmi->indication_requested = true;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 200) 		ipa_qmi_ready(ipa_qmi);		/* We might be ready now */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 201) 	} else {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 202) 		dev_err(&ipa->pdev->dev,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 203) 			"error %d sending register indication response\n", ret);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 204) 	}
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 205) }
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 206) 
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 207) /* Respond to a DRIVER_INIT_COMPLETE request message from the modem. */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 208) static void ipa_server_driver_init_complete(struct qmi_handle *qmi,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 209) 					    struct sockaddr_qrtr *sq,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 210) 					    struct qmi_txn *txn,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 211) 					    const void *decoded)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 212) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 213) 	struct ipa_driver_init_complete_rsp rsp = { };
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 214) 	struct ipa_qmi *ipa_qmi;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 215) 	struct ipa *ipa;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 216) 	int ret;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 217) 
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 218) 	ipa_qmi = container_of(qmi, struct ipa_qmi, server_handle);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 219) 	ipa = container_of(ipa_qmi, struct ipa, qmi);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 220) 
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 221) 	rsp.rsp.result = QMI_RESULT_SUCCESS_V01;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 222) 	rsp.rsp.error = QMI_ERR_NONE_V01;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 223) 
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 224) 	ret = qmi_send_response(qmi, sq, txn, IPA_QMI_DRIVER_INIT_COMPLETE,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 225) 				IPA_QMI_DRIVER_INIT_COMPLETE_RSP_SZ,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 226) 				ipa_driver_init_complete_rsp_ei, &rsp);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 227) 	if (!ret) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 228) 		ipa_qmi->uc_ready = true;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 229) 		ipa_qmi_ready(ipa_qmi);		/* We might be ready now */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 230) 	} else {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 231) 		dev_err(&ipa->pdev->dev,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 232) 			"error %d sending init complete response\n", ret);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 233) 	}
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 234) }
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 235) 
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 236) /* The server handles two request message types sent by the modem. */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 237) static struct qmi_msg_handler ipa_server_msg_handlers[] = {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 238) 	{
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 239) 		.type		= QMI_REQUEST,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 240) 		.msg_id		= IPA_QMI_INDICATION_REGISTER,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 241) 		.ei		= ipa_indication_register_req_ei,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 242) 		.decoded_size	= IPA_QMI_INDICATION_REGISTER_REQ_SZ,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 243) 		.fn		= ipa_server_indication_register,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 244) 	},
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 245) 	{
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 246) 		.type		= QMI_REQUEST,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 247) 		.msg_id		= IPA_QMI_DRIVER_INIT_COMPLETE,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 248) 		.ei		= ipa_driver_init_complete_req_ei,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 249) 		.decoded_size	= IPA_QMI_DRIVER_INIT_COMPLETE_REQ_SZ,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 250) 		.fn		= ipa_server_driver_init_complete,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 251) 	},
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 252) 	{ },
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 253) };
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 254) 
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 255) /* Handle an INIT_DRIVER response message from the modem. */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 256) static void ipa_client_init_driver(struct qmi_handle *qmi,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 257) 				   struct sockaddr_qrtr *sq,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 258) 				   struct qmi_txn *txn, const void *decoded)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 259) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 260) 	txn->result = 0;	/* IPA_QMI_INIT_DRIVER request was successful */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 261) 	complete(&txn->completion);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 262) }
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 263) 
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 264) /* The client handles one response message type sent by the modem. */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 265) static struct qmi_msg_handler ipa_client_msg_handlers[] = {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 266) 	{
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 267) 		.type		= QMI_RESPONSE,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 268) 		.msg_id		= IPA_QMI_INIT_DRIVER,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 269) 		.ei		= ipa_init_modem_driver_rsp_ei,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 270) 		.decoded_size	= IPA_QMI_INIT_DRIVER_RSP_SZ,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 271) 		.fn		= ipa_client_init_driver,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 272) 	},
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 273) 	{ },
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 274) };
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 275) 
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 276) /* Return a pointer to an init modem driver request structure, which contains
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 277)  * configuration parameters for the modem.  The modem may be started multiple
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 278)  * times, but generally these parameters don't change so we can reuse the
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 279)  * request structure once it's initialized.  The only exception is the
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 280)  * skip_uc_load field, which will be set only after the microcontroller has
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 281)  * reported it has completed its initialization.
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 282)  */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 283) static const struct ipa_init_modem_driver_req *
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 284) init_modem_driver_req(struct ipa_qmi *ipa_qmi)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 285) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 286) 	struct ipa *ipa = container_of(ipa_qmi, struct ipa, qmi);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 287) 	static struct ipa_init_modem_driver_req req;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 288) 	const struct ipa_mem *mem;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 289) 
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 290) 	/* The microcontroller is initialized on the first boot */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 291) 	req.skip_uc_load_valid = 1;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 292) 	req.skip_uc_load = ipa->uc_loaded ? 1 : 0;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 293) 
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 294) 	/* We only have to initialize most of it once */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 295) 	if (req.platform_type_valid)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 296) 		return &req;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 297) 
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 298) 	req.platform_type_valid = 1;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 299) 	req.platform_type = IPA_QMI_PLATFORM_TYPE_MSM_ANDROID;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 300) 
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 301) 	mem = &ipa->mem[IPA_MEM_MODEM_HEADER];
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 302) 	if (mem->size) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 303) 		req.hdr_tbl_info_valid = 1;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 304) 		req.hdr_tbl_info.start = ipa->mem_offset + mem->offset;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 305) 		req.hdr_tbl_info.end = req.hdr_tbl_info.start + mem->size - 1;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 306) 	}
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 307) 
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 308) 	mem = &ipa->mem[IPA_MEM_V4_ROUTE];
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 309) 	req.v4_route_tbl_info_valid = 1;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 310) 	req.v4_route_tbl_info.start = ipa->mem_offset + mem->offset;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 311) 	req.v4_route_tbl_info.count = mem->size / IPA_TABLE_ENTRY_SIZE;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 312) 
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 313) 	mem = &ipa->mem[IPA_MEM_V6_ROUTE];
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 314) 	req.v6_route_tbl_info_valid = 1;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 315) 	req.v6_route_tbl_info.start = ipa->mem_offset + mem->offset;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 316) 	req.v6_route_tbl_info.count = mem->size / IPA_TABLE_ENTRY_SIZE;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 317) 
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 318) 	mem = &ipa->mem[IPA_MEM_V4_FILTER];
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 319) 	req.v4_filter_tbl_start_valid = 1;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 320) 	req.v4_filter_tbl_start = ipa->mem_offset + mem->offset;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 321) 
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 322) 	mem = &ipa->mem[IPA_MEM_V6_FILTER];
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 323) 	req.v6_filter_tbl_start_valid = 1;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 324) 	req.v6_filter_tbl_start = ipa->mem_offset + mem->offset;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 325) 
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 326) 	mem = &ipa->mem[IPA_MEM_MODEM];
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 327) 	if (mem->size) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 328) 		req.modem_mem_info_valid = 1;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 329) 		req.modem_mem_info.start = ipa->mem_offset + mem->offset;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 330) 		req.modem_mem_info.size = mem->size;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 331) 	}
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 332) 
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 333) 	req.ctrl_comm_dest_end_pt_valid = 1;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 334) 	req.ctrl_comm_dest_end_pt =
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 335) 		ipa->name_map[IPA_ENDPOINT_AP_MODEM_RX]->endpoint_id;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 336) 
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 337) 	/* skip_uc_load_valid and skip_uc_load are set above */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 338) 
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 339) 	mem = &ipa->mem[IPA_MEM_MODEM_PROC_CTX];
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 340) 	if (mem->size) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 341) 		req.hdr_proc_ctx_tbl_info_valid = 1;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 342) 		req.hdr_proc_ctx_tbl_info.start =
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 343) 			ipa->mem_offset + mem->offset;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 344) 		req.hdr_proc_ctx_tbl_info.end =
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 345) 			req.hdr_proc_ctx_tbl_info.start + mem->size - 1;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 346) 	}
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 347) 
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 348) 	/* Nothing to report for the compression table (zip_tbl_info) */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 349) 
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 350) 	mem = &ipa->mem[IPA_MEM_V4_ROUTE_HASHED];
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 351) 	if (mem->size) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 352) 		req.v4_hash_route_tbl_info_valid = 1;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 353) 		req.v4_hash_route_tbl_info.start =
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 354) 				ipa->mem_offset + mem->offset;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 355) 		req.v4_hash_route_tbl_info.count =
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 356) 				mem->size / IPA_TABLE_ENTRY_SIZE;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 357) 	}
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 358) 
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 359) 	mem = &ipa->mem[IPA_MEM_V6_ROUTE_HASHED];
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 360) 	if (mem->size) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 361) 		req.v6_hash_route_tbl_info_valid = 1;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 362) 		req.v6_hash_route_tbl_info.start =
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 363) 			ipa->mem_offset + mem->offset;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 364) 		req.v6_hash_route_tbl_info.count =
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 365) 			mem->size / IPA_TABLE_ENTRY_SIZE;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 366) 	}
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 367) 
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 368) 	mem = &ipa->mem[IPA_MEM_V4_FILTER_HASHED];
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 369) 	if (mem->size) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 370) 		req.v4_hash_filter_tbl_start_valid = 1;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 371) 		req.v4_hash_filter_tbl_start = ipa->mem_offset + mem->offset;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 372) 	}
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 373) 
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 374) 	mem = &ipa->mem[IPA_MEM_V6_FILTER_HASHED];
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 375) 	if (mem->size) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 376) 		req.v6_hash_filter_tbl_start_valid = 1;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 377) 		req.v6_hash_filter_tbl_start = ipa->mem_offset + mem->offset;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 378) 	}
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 379) 
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 380) 	/* None of the stats fields are valid (IPA v4.0 and above) */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 381) 
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 382) 	if (ipa->version != IPA_VERSION_3_5_1) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 383) 		mem = &ipa->mem[IPA_MEM_STATS_QUOTA];
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 384) 		if (mem->size) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 385) 			req.hw_stats_quota_base_addr_valid = 1;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 386) 			req.hw_stats_quota_base_addr =
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 387) 				ipa->mem_offset + mem->offset;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 388) 			req.hw_stats_quota_size_valid = 1;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 389) 			req.hw_stats_quota_size = ipa->mem_offset + mem->size;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 390) 		}
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 391) 
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 392) 		mem = &ipa->mem[IPA_MEM_STATS_DROP];
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 393) 		if (mem->size) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 394) 			req.hw_stats_drop_base_addr_valid = 1;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 395) 			req.hw_stats_drop_base_addr =
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 396) 				ipa->mem_offset + mem->offset;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 397) 			req.hw_stats_drop_size_valid = 1;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 398) 			req.hw_stats_drop_size = ipa->mem_offset + mem->size;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 399) 		}
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 400) 	}
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 401) 
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 402) 	return &req;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 403) }
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 404) 
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 405) /* Send an INIT_DRIVER request to the modem, and wait for it to complete. */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 406) static void ipa_client_init_driver_work(struct work_struct *work)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 407) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 408) 	unsigned long timeout = msecs_to_jiffies(QMI_INIT_DRIVER_TIMEOUT);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 409) 	const struct ipa_init_modem_driver_req *req;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 410) 	struct ipa_qmi *ipa_qmi;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 411) 	struct qmi_handle *qmi;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 412) 	struct qmi_txn txn;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 413) 	struct device *dev;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 414) 	struct ipa *ipa;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 415) 	int ret;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 416) 
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 417) 	ipa_qmi = container_of(work, struct ipa_qmi, init_driver_work);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 418) 	qmi = &ipa_qmi->client_handle,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 419) 
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 420) 	ipa = container_of(ipa_qmi, struct ipa, qmi);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 421) 	dev = &ipa->pdev->dev;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 422) 
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 423) 	ret = qmi_txn_init(qmi, &txn, NULL, NULL);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 424) 	if (ret < 0) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 425) 		dev_err(dev, "error %d preparing init driver request\n", ret);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 426) 		return;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 427) 	}
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 428) 
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 429) 	/* Send the request, and if successful wait for its response */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 430) 	req = init_modem_driver_req(ipa_qmi);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 431) 	ret = qmi_send_request(qmi, &ipa_qmi->modem_sq, &txn,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 432) 			       IPA_QMI_INIT_DRIVER, IPA_QMI_INIT_DRIVER_REQ_SZ,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 433) 			       ipa_init_modem_driver_req_ei, req);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 434) 	if (ret)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 435) 		dev_err(dev, "error %d sending init driver request\n", ret);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 436) 	else if ((ret = qmi_txn_wait(&txn, timeout)))
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 437) 		dev_err(dev, "error %d awaiting init driver response\n", ret);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 438) 
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 439) 	if (!ret) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 440) 		ipa_qmi->modem_ready = true;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 441) 		ipa_qmi_ready(ipa_qmi);		/* We might be ready now */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 442) 	} else {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 443) 		/* If any error occurs we need to cancel the transaction */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 444) 		qmi_txn_cancel(&txn);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 445) 	}
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 446) }
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 447) 
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 448) /* The modem server is now available.  We will send an INIT_DRIVER request
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 449)  * to the modem, but can't wait for it to complete in this callback thread.
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 450)  * Schedule a worker on the global workqueue to do that for us.
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 451)  */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 452) static int
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 453) ipa_client_new_server(struct qmi_handle *qmi, struct qmi_service *svc)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 454) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 455) 	struct ipa_qmi *ipa_qmi;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 456) 
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 457) 	ipa_qmi = container_of(qmi, struct ipa_qmi, client_handle);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 458) 
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 459) 	ipa_qmi->modem_sq.sq_family = AF_QIPCRTR;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 460) 	ipa_qmi->modem_sq.sq_node = svc->node;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 461) 	ipa_qmi->modem_sq.sq_port = svc->port;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 462) 
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 463) 	schedule_work(&ipa_qmi->init_driver_work);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 464) 
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 465) 	return 0;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 466) }
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 467) 
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 468) static struct qmi_ops ipa_client_ops = {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 469) 	.new_server	= ipa_client_new_server,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 470) };
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 471) 
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 472) /* This is called by ipa_setup().  We can be informed via remoteproc that
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 473)  * the modem has shut down, in which case this function will be called
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 474)  * again to prepare for it coming back up again.
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 475)  */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 476) int ipa_qmi_setup(struct ipa *ipa)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 477) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 478) 	struct ipa_qmi *ipa_qmi = &ipa->qmi;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 479) 	int ret;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 480) 
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 481) 	ipa_qmi->initial_boot = true;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 482) 
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 483) 	/* The server handle is used to handle the DRIVER_INIT_COMPLETE
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 484) 	 * request on the first modem boot.  It also receives the
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 485) 	 * INDICATION_REGISTER request on the first boot and (optionally)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 486) 	 * subsequent boots.  The INIT_COMPLETE indication message is
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 487) 	 * sent over the server handle if requested.
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 488) 	 */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 489) 	ret = qmi_handle_init(&ipa_qmi->server_handle,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 490) 			      IPA_QMI_SERVER_MAX_RCV_SZ, &ipa_server_ops,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 491) 			      ipa_server_msg_handlers);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 492) 	if (ret)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 493) 		return ret;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 494) 
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 495) 	ret = qmi_add_server(&ipa_qmi->server_handle, IPA_HOST_SERVICE_SVC_ID,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 496) 			     IPA_HOST_SVC_VERS, IPA_HOST_SERVICE_INS_ID);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 497) 	if (ret)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 498) 		goto err_server_handle_release;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 499) 
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 500) 	/* The client handle is only used for sending an INIT_DRIVER request
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 501) 	 * to the modem, and receiving its response message.
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 502) 	 */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 503) 	ret = qmi_handle_init(&ipa_qmi->client_handle,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 504) 			      IPA_QMI_CLIENT_MAX_RCV_SZ, &ipa_client_ops,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 505) 			      ipa_client_msg_handlers);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 506) 	if (ret)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 507) 		goto err_server_handle_release;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 508) 
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 509) 	/* We need this ready before the service lookup is added */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 510) 	INIT_WORK(&ipa_qmi->init_driver_work, ipa_client_init_driver_work);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 511) 
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 512) 	ret = qmi_add_lookup(&ipa_qmi->client_handle, IPA_MODEM_SERVICE_SVC_ID,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 513) 			     IPA_MODEM_SVC_VERS, IPA_MODEM_SERVICE_INS_ID);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 514) 	if (ret)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 515) 		goto err_client_handle_release;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 516) 
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 517) 	return 0;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 518) 
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 519) err_client_handle_release:
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 520) 	/* Releasing the handle also removes registered lookups */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 521) 	qmi_handle_release(&ipa_qmi->client_handle);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 522) 	memset(&ipa_qmi->client_handle, 0, sizeof(ipa_qmi->client_handle));
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 523) err_server_handle_release:
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 524) 	/* Releasing the handle also removes registered services */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 525) 	qmi_handle_release(&ipa_qmi->server_handle);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 526) 	memset(&ipa_qmi->server_handle, 0, sizeof(ipa_qmi->server_handle));
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 527) 
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 528) 	return ret;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 529) }
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 530) 
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 531) void ipa_qmi_teardown(struct ipa *ipa)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 532) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 533) 	cancel_work_sync(&ipa->qmi.init_driver_work);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 534) 
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 535) 	qmi_handle_release(&ipa->qmi.client_handle);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 536) 	memset(&ipa->qmi.client_handle, 0, sizeof(ipa->qmi.client_handle));
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 537) 
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 538) 	qmi_handle_release(&ipa->qmi.server_handle);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 539) 	memset(&ipa->qmi.server_handle, 0, sizeof(ipa->qmi.server_handle));
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 540) }