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Commit 754386c6 authored by Skylar Chang's avatar Skylar Chang
Browse files

msm: ipa: Add support for WAN Transport Driver 



The WAN Transport driver implements network stack
class device. It supports following functionalities.
- Embedded data transfer from A7 to Q6
- Configures IPA HW for RmNet Data Driver
- Exchange of QMI messages between A7 and Q6 IPA-driver

Change-Id: I8568b5fc4aad186557ac3e32989b5a9c382ccb66
Signed-off-by: default avatarSkylar Chang <chiaweic@codeaurora.org>
parent b172e2dd

drivers/platform/msm/Kconfig

+10 −0
Original line number Diff line number Diff line
@@ -113,6 +113,16 @@ config IPA 
	  for the IPA core.

	  Kernel and user-space processes can call the IPA driver

	  to configure IPA core.



config RMNET_IPA

	tristate "IPA RMNET WWAN Network Device"

	depends on IPA && MSM_QMI_INTERFACE

	help

	  This WWAN Network Driver implements network stack class device.

	  It supports Embedded data transfer from A7 to Q6. Configures IPA HW

	  for RmNet Data Driver and also exchange of QMI messages between

	  A7 and Q6 IPA-driver.



config MSM_AVTIMER

	tristate "Avtimer Driver"

	depends on MSM_QDSP6_APRV2

drivers/platform/msm/ipa/Makefile

+3 −0
Original line number Diff line number Diff line
@@ -2,3 +2,6 @@ obj-$(CONFIG_IPA) += ipat.o 
ipat-y := ipa.o ipa_debugfs.o ipa_hdr.o ipa_flt.o ipa_rt.o ipa_dp.o ipa_client.o \

	ipa_utils.o ipa_nat.o a2_service.o ipa_bridge.o ipa_intf.o teth_bridge.o \

	ipa_rm.o ipa_rm_dependency_graph.o ipa_rm_peers_list.o ipa_rm_resource.o ipa_rm_inactivity_timer.o



obj-$(CONFIG_RMNET_IPA) += rmnet_ipa.o ipa_qmi_service_v01.o ipa_qmi_service.o rmnet_ipa_fd_ioctl.o

drivers/platform/msm/ipa/ipa_qmi_service.c

0 → 100644
+636 −0
Original line number Diff line number Diff line 
/* Copyright (c) 2013, The Linux Foundation. All rights reserved.

 *

 * This program is free software; you can redistribute it and/or modify

 * it under the terms of the GNU General Public License version 2 and

 * only version 2 as published by the Free Software Foundation.

 *

 * This program is distributed in the hope that it will be useful,

 * but WITHOUT ANY WARRANTY; without even the implied warranty of

 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the

 * GNU General Public License for more details.

 *

 */



#include <linux/module.h>

#include <linux/slab.h>

#include <linux/errno.h>

#include <linux/delay.h>

#include <linux/debugfs.h>

#include <linux/qmi_encdec.h>

#include <linux/delay.h>

#include <linux/uaccess.h>



#include "ipa_qmi_service.h"

#include "ipa_ram_mmap.h"



#define IPA_Q6_SVC_VERS 1

#define IPA_A5_SVC_VERS 1

#define Q6_QMI_COMPLETION_TIMEOUT (60*HZ)



#define IPA_A5_SERVICE_SVC_ID 0x31

#define IPA_A5_SERVICE_INS_ID 1

#define IPA_Q6_SERVICE_SVC_ID 0x31

#define IPA_Q6_SERVICE_INS_ID 2





static struct qmi_handle *ipa_svc_handle;

static void ipa_a5_svc_recv_msg(struct work_struct *work);

static DECLARE_DELAYED_WORK(work_recv_msg, ipa_a5_svc_recv_msg);

static struct workqueue_struct *ipa_svc_workqueue;

static struct workqueue_struct *ipa_clnt_req_workqueue;

static struct workqueue_struct *ipa_clnt_resp_workqueue;

static void *curr_conn;

static bool qmi_modem_init_fin, qmi_indication_fin;





/* QMI A5 service */



static struct msg_desc ipa_indication_reg_req_desc = {

	.max_msg_len = QMI_IPA_INDICATION_REGISTER_REQ_MAX_MSG_LEN_V01,

	.msg_id = QMI_IPA_INDICATION_REGISTER_REQ_V01,

	.ei_array = ipa_indication_reg_req_msg_data_v01_ei,

};

static struct msg_desc ipa_indication_reg_resp_desc = {

	.max_msg_len = QMI_IPA_INDICATION_REGISTER_RESP_MAX_MSG_LEN_V01,

	.msg_id = QMI_IPA_INDICATION_REGISTER_RESP_V01,

	.ei_array = ipa_indication_reg_resp_msg_data_v01_ei,

};

static struct msg_desc ipa_master_driver_complete_indication_desc = {

	.max_msg_len = QMI_IPA_MASTER_DRIVER_INIT_COMPLETE_IND_MAX_MSG_LEN_V01,

	.msg_id = QMI_IPA_MASTER_DRIVER_INIT_COMPLETE_IND_V01,

	.ei_array = ipa_master_driver_init_complt_ind_msg_data_v01_ei,

};

static struct msg_desc ipa_install_fltr_rule_req_desc = {

	.max_msg_len = QMI_IPA_INSTALL_FILTER_RULE_REQ_MAX_MSG_LEN_V01,

	.msg_id = QMI_IPA_INSTALL_FILTER_RULE_REQ_V01,

	.ei_array = ipa_install_fltr_rule_req_msg_data_v01_ei,

};

static struct msg_desc ipa_install_fltr_rule_resp_desc = {

	.max_msg_len = QMI_IPA_INSTALL_FILTER_RULE_RESP_MAX_MSG_LEN_V01,

	.msg_id = QMI_IPA_INSTALL_FILTER_RULE_RESP_V01,

	.ei_array = ipa_install_fltr_rule_resp_msg_data_v01_ei,

};

static struct msg_desc ipa_filter_installed_notif_req_desc = {

	.max_msg_len = QMI_IPA_FILTER_INSTALLED_NOTIF_REQ_MAX_MSG_LEN_V01,

	.msg_id = QMI_IPA_FILTER_INSTALLED_NOTIF_REQ_V01,

	.ei_array = ipa_fltr_installed_notif_req_msg_data_v01_ei,

};

static struct msg_desc ipa_filter_installed_notif_resp_desc = {

	.max_msg_len = QMI_IPA_FILTER_INSTALLED_NOTIF_RESP_MAX_MSG_LEN_V01,

	.msg_id = QMI_IPA_FILTER_INSTALLED_NOTIF_RESP_V01,

	.ei_array = ipa_fltr_installed_notif_resp_msg_data_v01_ei,

};



static int handle_indication_req(void *req_h, void *req)

{

	struct ipa_indication_reg_req_msg_v01 *indication_req;

	struct ipa_indication_reg_resp_msg_v01 resp;

	struct ipa_master_driver_init_complt_ind_msg_v01 ind;

	int rc;



	indication_req = (struct ipa_indication_reg_req_msg_v01 *)req;

	IPAWANDBG("Received INDICATION Request\n");



	memset(&resp, 0, sizeof(struct ipa_indication_reg_resp_msg_v01));

	resp.resp.result = IPA_QMI_RESULT_SUCCESS_V01;

	rc = qmi_send_resp_from_cb(ipa_svc_handle, curr_conn, req_h,

			&ipa_indication_reg_resp_desc, &resp, sizeof(resp));

	qmi_indication_fin = true;

	/* check if need sending indication to modem */

	if (qmi_modem_init_fin)	{

		IPAWANDBG("send indication to modem (%d)\n",

		qmi_modem_init_fin);

		memset(&ind, 0, sizeof(struct

				ipa_master_driver_init_complt_ind_msg_v01));

		ind.master_driver_init_status.result =

			IPA_QMI_RESULT_SUCCESS_V01;

		rc = qmi_send_ind(ipa_svc_handle, curr_conn,

			&ipa_master_driver_complete_indication_desc,

			&ind,

			sizeof(ind));

	} else {

		IPAWANERR("not send indication\n");

	}

	return rc;

}





static int handle_install_filter_rule_req(void *req_h, void *req)

{

	struct ipa_install_fltr_rule_req_msg_v01 *rule_req;

	struct ipa_install_fltr_rule_resp_msg_v01 resp;

	uint32_t rule_hdl[MAX_NUM_Q6_RULE];

	int rc = 0, i;



	rule_req = (struct ipa_install_fltr_rule_req_msg_v01 *)req;

	memset(rule_hdl, 0, sizeof(rule_hdl));

	memset(&resp, 0, sizeof(struct ipa_install_fltr_rule_resp_msg_v01));

	IPAWANDBG("Received install filter Request\n");



	rc = copy_ul_filter_rule_to_ipa((struct

		ipa_install_fltr_rule_req_msg_v01*)req, rule_hdl);

	if (rc)

		IPAWANERR("copy UL rules from modem is failed\n");



	resp.resp.result = IPA_QMI_RESULT_SUCCESS_V01;

	if (rule_req->filter_spec_list_valid == true) {

		resp.filter_handle_list_valid = true;

		resp.filter_handle_list_len = rule_req->filter_spec_list_len;

	} else {

		resp.filter_handle_list_valid = false;

	}



	/* construct UL filter rules response to Modem*/

	for (i = 0; i < resp.filter_handle_list_len; i++) {

		resp.filter_handle_list[i].filter_spec_identifier =

			rule_req->filter_spec_list[i].filter_spec_identifier;

		resp.filter_handle_list[i].filter_handle = rule_hdl[i];

	}



	rc = qmi_send_resp_from_cb(ipa_svc_handle, curr_conn, req_h,

			&ipa_install_fltr_rule_resp_desc, &resp, sizeof(resp));



	IPAWANDBG("Replied to install filter request\n");

	return rc;

}



static int handle_filter_installed_notify_req(void *req_h, void *req)

{

	struct ipa_fltr_installed_notif_resp_msg_v01 resp;

	int rc = 0;



	memset(&resp, 0, sizeof(struct ipa_fltr_installed_notif_resp_msg_v01));

	IPAWANDBG("Received filter_install_notify Request\n");

	resp.resp.result = IPA_QMI_RESULT_SUCCESS_V01;



	rc = qmi_send_resp_from_cb(ipa_svc_handle, curr_conn, req_h,

			&ipa_filter_installed_notif_resp_desc,

			&resp, sizeof(resp));



	IPAWANDBG("Responsed filter_install_notify Request\n");

	return rc;

}



static int ipa_a5_svc_connect_cb(struct qmi_handle *handle,

			       void *conn_h)

{

	if (ipa_svc_handle != handle || !conn_h)

		return -EINVAL;



	if (curr_conn) {

		IPAWANERR("Service is busy\n");

		return -ECONNREFUSED;

	}

	curr_conn = conn_h;

	return 0;

}



static int ipa_a5_svc_disconnect_cb(struct qmi_handle *handle,

				  void *conn_h)

{

	if (ipa_svc_handle != handle || curr_conn != conn_h)

		return -EINVAL;



	curr_conn = NULL;

	return 0;

}



static int ipa_a5_svc_req_desc_cb(unsigned int msg_id,

				struct msg_desc **req_desc)

{

	int rc;

	switch (msg_id) {

	case QMI_IPA_INDICATION_REGISTER_REQ_V01:

		*req_desc = &ipa_indication_reg_req_desc;

		rc = sizeof(struct ipa_indication_reg_req_msg_v01);

		break;



	case QMI_IPA_INSTALL_FILTER_RULE_REQ_V01:

		*req_desc = &ipa_install_fltr_rule_req_desc;

		rc = sizeof(struct ipa_install_fltr_rule_req_msg_v01);

		break;

	case QMI_IPA_FILTER_INSTALLED_NOTIF_REQ_V01:

		*req_desc = &ipa_filter_installed_notif_req_desc;

		rc = sizeof(struct ipa_fltr_installed_notif_req_msg_v01);

		break;

	default:

		rc = -ENOTSUPP;

		break;

	}

	return rc;

}



static int ipa_a5_svc_req_cb(struct qmi_handle *handle, void *conn_h,

			void *req_h, unsigned int msg_id, void *req)

{

	int rc;

	if (ipa_svc_handle != handle || curr_conn != conn_h)

		return -EINVAL;



	switch (msg_id) {

	case QMI_IPA_INDICATION_REGISTER_REQ_V01:

		rc = handle_indication_req(req_h, req);

		break;

	case QMI_IPA_INSTALL_FILTER_RULE_REQ_V01:

		rc = handle_install_filter_rule_req(req_h, req);

		break;

	case QMI_IPA_FILTER_INSTALLED_NOTIF_REQ_V01:

		rc = handle_filter_installed_notify_req(req_h, req);

		break;

	default:

		rc = -ENOTSUPP;

		break;

	}

	return rc;

}



static void ipa_a5_svc_recv_msg(struct work_struct *work)

{

	int rc;



	do {

		IPAWANDBG("Notified about a Receive Event");

		rc = qmi_recv_msg(ipa_svc_handle);

	} while (rc == 0);

	if (rc != -ENOMSG)

		IPAWANERR("Error receiving message\n");

}



static void qmi_ipa_a5_svc_ntfy(struct qmi_handle *handle,

		enum qmi_event_type event, void *priv)

{

	switch (event) {

	case QMI_RECV_MSG:

		queue_delayed_work(ipa_svc_workqueue,

				   &work_recv_msg, 0);

		break;

	default:

		break;

	}

}



static struct qmi_svc_ops_options ipa_a5_svc_ops_options = {

	.version = 1,

	.service_id = IPA_A5_SERVICE_SVC_ID,

	.service_vers = IPA_A5_SVC_VERS,

	.service_ins = IPA_A5_SERVICE_INS_ID,

	.connect_cb = ipa_a5_svc_connect_cb,

	.disconnect_cb = ipa_a5_svc_disconnect_cb,

	.req_desc_cb = ipa_a5_svc_req_desc_cb,

	.req_cb = ipa_a5_svc_req_cb,

};





/****************************************************/

/*                 QMI A5 client ->Q6               */

/****************************************************/

static void ipa_q6_clnt_recv_msg(struct work_struct *work);

static DECLARE_DELAYED_WORK(work_recv_msg_client, ipa_q6_clnt_recv_msg);

static void ipa_q6_clnt_svc_arrive(struct work_struct *work);

static DECLARE_DELAYED_WORK(work_svc_arrive, ipa_q6_clnt_svc_arrive);

static void ipa_q6_clnt_svc_exit(struct work_struct *work);

static DECLARE_DELAYED_WORK(work_svc_exit, ipa_q6_clnt_svc_exit);

/* Test client port for IPC Router */

static struct qmi_handle *ipa_q6_clnt;

static int ipa_q6_clnt_reset;



static int qmi_init_modem_send_sync_msg(void)

{

	struct ipa_init_modem_driver_req_msg_v01 req;

	struct ipa_init_modem_driver_resp_msg_v01 resp;

	struct msg_desc req_desc, resp_desc;

	int rc;



	memset(&req, 0, sizeof(struct ipa_init_modem_driver_req_msg_v01));

	memset(&resp, 0, sizeof(struct ipa_init_modem_driver_resp_msg_v01));

	req.platform_type_valid = true;

	req.platform_type = QMI_IPA_PLATFORM_TYPE_LE_V01;

	req.hdr_tbl_info_valid = true;

	req.hdr_tbl_info.modem_offset_start = IPA_v2_RAM_MODEM_HDR_OFST + 256;

	req.hdr_tbl_info.modem_offset_end = IPA_v2_RAM_MODEM_HDR_OFST + 256

		+ IPA_v2_RAM_MODEM_HDR_SIZE - 1;

	req.v4_route_tbl_info_valid = true;

	req.v4_route_tbl_info.route_tbl_start_addr =

		IPA_v2_RAM_V4_RT_OFST + 256;

	req.v4_route_tbl_info.num_indices = IPA_v2_V4_MODEM_RT_INDEX_HI;

	req.v6_route_tbl_info_valid = true;

	req.v6_route_tbl_info.route_tbl_start_addr =

		IPA_v2_RAM_V6_RT_OFST + 256;

	req.v6_route_tbl_info.num_indices = IPA_v2_V6_MODEM_RT_INDEX_HI;

	req.v4_filter_tbl_start_addr_valid = true;

	req.v4_filter_tbl_start_addr = IPA_v2_RAM_V4_FLT_OFST + 256;

	req.v6_filter_tbl_start_addr_valid = true;

	req.v6_filter_tbl_start_addr = IPA_v2_RAM_V6_FLT_OFST + 256;

	req.modem_mem_info_valid = true;

	req.modem_mem_info.block_start_addr = IPA_v2_RAM_MODEM_OFST + 256;

	req.modem_mem_info.size = IPA_v2_RAM_MODEM_SIZE;

	req.ctrl_comm_dest_end_pt_valid = true;

	req.ctrl_comm_dest_end_pt =

		ipa_get_ep_mapping(IPA_CLIENT_APPS_WAN_CONS);



	IPAWANDBG("platform_type %d\n", req.platform_type);

	IPAWANDBG("hdr_tbl_info.modem_offset_start %d\n",

			req.hdr_tbl_info.modem_offset_start);

	IPAWANDBG("hdr_tbl_info.modem_offset_end %d\n",

			req.hdr_tbl_info.modem_offset_end);

	IPAWANDBG("v4_route_tbl_info.route_tbl_start_addr %d\n",

			req.v4_route_tbl_info.route_tbl_start_addr);

	IPAWANDBG("v4_route_tbl_info.num_indices %d\n",

			req.v4_route_tbl_info.num_indices);

	IPAWANDBG("v6_route_tbl_info.route_tbl_start_addr %d\n",

			req.v6_route_tbl_info.route_tbl_start_addr);

	IPAWANDBG("v6_route_tbl_info.num_indices %d\n",

			req.v6_route_tbl_info.num_indices);

	IPAWANDBG("v4_filter_tbl_start_addr %d\n",

			req.v4_filter_tbl_start_addr);

	IPAWANDBG("v6_filter_tbl_start_addr %d\n",

			req.v6_filter_tbl_start_addr);

	IPAWANDBG("modem_mem_info.block_start_addr %d\n",

			req.modem_mem_info.block_start_addr);

	IPAWANDBG("modem_mem_info.size %d\n",

			req.modem_mem_info.size);

	IPAWANDBG("ctrl_comm_dest_end_pt %d\n",

			req.ctrl_comm_dest_end_pt);



	req_desc.max_msg_len = QMI_IPA_INIT_MODEM_DRIVER_REQ_MAX_MSG_LEN_V01;

	req_desc.msg_id = QMI_IPA_INIT_MODEM_DRIVER_REQ_V01;

	req_desc.ei_array = ipa_init_modem_driver_req_msg_data_v01_ei;



	resp_desc.max_msg_len = QMI_IPA_INIT_MODEM_DRIVER_RESP_MAX_MSG_LEN_V01;

	resp_desc.msg_id = QMI_IPA_INIT_MODEM_DRIVER_RESP_V01;

	resp_desc.ei_array = ipa_init_modem_driver_resp_msg_data_v01_ei;



	rc = qmi_send_req_wait(ipa_q6_clnt, &req_desc, &req, sizeof(req),

			       &resp_desc, &resp, sizeof(resp), 0);

	if (rc < 0) {

		IPAWANERR("send req failed %d\n", rc);

		return rc;

	}



	IPAWANDBG("Received ipa_init_modem_driver_resp_msg_v01 response\n");

	return rc;

}



/* sending filter-install-request to modem*/

int qmi_filter_request_send(struct ipa_install_fltr_rule_req_msg_v01 *req)

{

	struct ipa_install_fltr_rule_resp_msg_v01 resp;

	struct msg_desc req_desc, resp_desc;

	int rc;



	/* check if the filter rules from IPACM is valid */

	if (req->filter_spec_list_len == 0) {

		IPAWANDBG("IPACM pass zero rules to Q6\n");

	} else {

		IPAWANDBG("IPACM pass %d rules to Q6\n",

		req->filter_spec_list_len);

	}



	req_desc.max_msg_len = QMI_IPA_INSTALL_FILTER_RULE_REQ_MAX_MSG_LEN_V01;

	req_desc.msg_id = QMI_IPA_INSTALL_FILTER_RULE_REQ_V01;

	req_desc.ei_array = ipa_install_fltr_rule_req_msg_data_v01_ei;



	memset(&resp, 0, sizeof(struct ipa_install_fltr_rule_resp_msg_v01));

	resp_desc.max_msg_len =

		QMI_IPA_INSTALL_FILTER_RULE_RESP_MAX_MSG_LEN_V01;

	resp_desc.msg_id = QMI_IPA_INSTALL_FILTER_RULE_RESP_V01;

	resp_desc.ei_array = ipa_install_fltr_rule_resp_msg_data_v01_ei;



	rc = qmi_send_req_wait(ipa_q6_clnt, &req_desc,

			req,

			sizeof(struct ipa_install_fltr_rule_req_msg_v01),

			&resp_desc, &resp, sizeof(resp), 0);

	if (rc < 0) {

		IPAWANERR("send req failed %d\n", rc);

		return rc;

	}

	if (resp.resp.result != IPA_QMI_RESULT_SUCCESS_V01) {

		IPAWANERR("got response failed %d\n",

				resp.resp.result);

		return resp.resp.result;

	}

	IPAWANDBG("Received ipa_install_filter response successfully\n");

	return rc;

}





/* sending filter-installed-notify-request to modem*/

int qmi_filter_notify_send(struct ipa_fltr_installed_notif_req_msg_v01 *req)

{

	struct ipa_fltr_installed_notif_resp_msg_v01 resp;

	struct msg_desc req_desc, resp_desc;

	int rc = 0;



	/* check if the filter rules from IPACM is valid */

	if (req->filter_index_list_len == 0) {

		IPAERR(" delete UL filter rule for pipe %d\n",

		req->source_pipe_index);

		return -EINVAL;

	}



	req_desc.max_msg_len =

	QMI_IPA_FILTER_INSTALLED_NOTIF_REQ_MAX_MSG_LEN_V01;

	req_desc.msg_id = QMI_IPA_FILTER_INSTALLED_NOTIF_REQ_V01;

	req_desc.ei_array = ipa_fltr_installed_notif_req_msg_data_v01_ei;



	memset(&resp, 0, sizeof(struct ipa_fltr_installed_notif_resp_msg_v01));

	resp_desc.max_msg_len =

		QMI_IPA_FILTER_INSTALLED_NOTIF_RESP_MAX_MSG_LEN_V01;

	resp_desc.msg_id = QMI_IPA_FILTER_INSTALLED_NOTIF_RESP_V01;

	resp_desc.ei_array = ipa_fltr_installed_notif_resp_msg_data_v01_ei;



	rc = qmi_send_req_wait(ipa_q6_clnt,

			&req_desc,

			req,

			sizeof(struct ipa_fltr_installed_notif_req_msg_v01),

			&resp_desc, &resp, sizeof(resp), 0);

	if (rc < 0) {

		IPAWANERR("send req failed %d\n", rc);

		return rc;

	}

	if (resp.resp.result != IPA_QMI_RESULT_SUCCESS_V01) {

		IPAWANERR("filter_notify failed %d\n",

			resp.resp.result);

		return resp.resp.result;

	}

	IPAWANDBG("Received ipa_fltr_installed_notif_resp successfully\n");

	return rc;

}



static void ipa_q6_clnt_recv_msg(struct work_struct *work)

{

	int rc;

	rc = qmi_recv_msg(ipa_q6_clnt);

	if (rc < 0)

		IPAWANERR("Error receiving message\n");

}



static void ipa_q6_clnt_notify(struct qmi_handle *handle,

			     enum qmi_event_type event, void *notify_priv)

{

	switch (event) {

	case QMI_RECV_MSG:

		IPAWANDBG("client qmi recv message called");

		queue_delayed_work(ipa_clnt_resp_workqueue,

				   &work_recv_msg_client, 0);

		break;

	default:

		break;

	}

}





static void ipa_q6_clnt_svc_arrive(struct work_struct *work)

{

	int rc;

	struct ipa_master_driver_init_complt_ind_msg_v01 ind;



	/* Create a Local client port for QMI communication */

	ipa_q6_clnt = qmi_handle_create(ipa_q6_clnt_notify, NULL);

	if (!ipa_q6_clnt) {

		IPAWANERR("QMI client handle alloc failed\n");

		return;

	}



	IPAWANDBG("Lookup server name, get client-hdl(%p)\n",

		ipa_q6_clnt);

	rc = qmi_connect_to_service(ipa_q6_clnt,

			IPA_Q6_SERVICE_SVC_ID,

			IPA_Q6_SVC_VERS,

			IPA_Q6_SERVICE_INS_ID);

	if (rc < 0) {

		IPAWANERR("Server not found\n");

		qmi_handle_destroy(ipa_q6_clnt);

		ipa_q6_clnt = NULL;

		return;

	}

	ipa_q6_clnt_reset = 0;

	IPAWANDBG("Q6 QMI service available now\n");

	/* Initialize modem IPA-driver */

	IPAWANDBG("send qmi_init_modem_send_sync_msg to modem\n");

	rc = qmi_init_modem_send_sync_msg();

	qmi_modem_init_fin = true;

	IPAWANDBG("complete, qmi_modem_init_fin : %d\n",

		qmi_modem_init_fin);



	if (qmi_indication_fin)	{

		IPAWANDBG("send indication to modem (%d)\n",

		qmi_indication_fin);

		memset(&ind, 0, sizeof(struct

				ipa_master_driver_init_complt_ind_msg_v01));

		ind.master_driver_init_status.result =

			IPA_QMI_RESULT_SUCCESS_V01;

		rc = qmi_send_ind(ipa_svc_handle, curr_conn,

			&ipa_master_driver_complete_indication_desc,

			&ind,

			sizeof(ind));

		IPAWANDBG("ipa_qmi_service_client good\n");

	} else {

		IPAWANERR("not send indication (%d)\n",

		qmi_indication_fin);

	}

}





static void ipa_q6_clnt_svc_exit(struct work_struct *work)

{

	qmi_handle_destroy(ipa_q6_clnt);

	ipa_q6_clnt_reset = 1;

	ipa_q6_clnt = NULL;

}





static int ipa_q6_clnt_svc_event_notify(struct notifier_block *this,

				      unsigned long code,

				      void *_cmd)

{

	IPAWANDBG("event %ld\n", code);

	switch (code) {

	case QMI_SERVER_ARRIVE:

		queue_delayed_work(ipa_clnt_req_workqueue,

				   &work_svc_arrive, 0);

		break;

	case QMI_SERVER_EXIT:

		queue_delayed_work(ipa_clnt_req_workqueue,

				   &work_svc_exit, 0);

		break;

	default:

		break;

	}

	return 0;

}





static struct notifier_block ipa_q6_clnt_nb = {

	.notifier_call = ipa_q6_clnt_svc_event_notify,

};



int ipa_qmi_service_init(void)

{

	int rc;



	/* Initialize QMI-service*/

	IPAWANDBG("IPA A7 QMI init OK :>>>>\n");

	qmi_modem_init_fin = false;

	qmi_indication_fin = false;



	ipa_svc_workqueue = create_singlethread_workqueue("ipa_A7_svc");

	if (!ipa_svc_workqueue)

		return -EFAULT;



	ipa_svc_handle = qmi_handle_create(qmi_ipa_a5_svc_ntfy, NULL);

	if (!ipa_svc_handle) {

		IPAWANERR("Creating ipa_A7_svc qmi handle failed\n");

		destroy_workqueue(ipa_svc_workqueue);

		return -EFAULT;

	}



	rc = qmi_svc_register(ipa_svc_handle, &ipa_a5_svc_ops_options);

	if (rc < 0) {

		IPAWANERR("Registering ipa_a5 svc failed %d\n",

				rc);

		qmi_handle_destroy(ipa_svc_handle);

		destroy_workqueue(ipa_svc_workqueue);

		return rc;

	}



	/* Initialize QMI-client */



	ipa_clnt_req_workqueue = create_singlethread_workqueue("clnt_req");

	if (!ipa_clnt_req_workqueue)

		return -EFAULT;



	ipa_clnt_resp_workqueue = create_singlethread_workqueue("clnt_resp");

	if (!ipa_clnt_resp_workqueue)

		return -EFAULT;



	rc = qmi_svc_event_notifier_register(IPA_Q6_SERVICE_SVC_ID,

				IPA_Q6_SVC_VERS,

				IPA_Q6_SERVICE_INS_ID, &ipa_q6_clnt_nb);

	if (rc < 0) {

		IPAWANERR("notifier register failed\n");

		destroy_workqueue(ipa_clnt_req_workqueue);

		destroy_workqueue(ipa_clnt_resp_workqueue);

		return rc;

	}



	/* get Q6 service and start send modem-initial to Q6 */

	IPAWANDBG("wait service available\n");

	return 0;

}



void ipa_qmi_service_exit(void)

{

	/* qmi-service */

	qmi_svc_unregister(ipa_svc_handle);

	flush_workqueue(ipa_svc_workqueue);

	qmi_handle_destroy(ipa_svc_handle);

	destroy_workqueue(ipa_svc_workqueue);



	/* qmi-client */

	qmi_svc_event_notifier_unregister(IPA_Q6_SERVICE_SVC_ID,

				IPA_Q6_SVC_VERS,

				IPA_Q6_SERVICE_INS_ID, &ipa_q6_clnt_nb);

	destroy_workqueue(ipa_clnt_req_workqueue);

	destroy_workqueue(ipa_clnt_resp_workqueue);

}

drivers/platform/msm/ipa/ipa_qmi_service.h

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Original line number Diff line number Diff line 
/* Copyright (c) 2013, The Linux Foundation. All rights reserved.

 *

 * This program is free software; you can redistribute it and/or modify

 * it under the terms of the GNU General Public License version 2 and

 * only version 2 as published by the Free Software Foundation.

 *

 * This program is distributed in the hope that it will be useful,

 * but WITHOUT ANY WARRANTY; without even the implied warranty of

 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the

 * GNU General Public License for more details.

 */



#ifndef IPA_QMI_SERVICE_H

#define IPA_QMI_SERVICE_H



#include <mach/ipa.h>

#include <linux/ipa_qmi_service_v01.h>

#include <mach/msm_qmi_interface.h>

#include "ipa_i.h"



/**

 * name of the DL wwan default routing tables for v4 and v6

 */

#define IPA_A7_QMAP_HDR_NAME "ipa_qmap_hdr"

#define IPA_DFLT_WAN_RT_TBL_NAME "ipa_dflt_wan_rt"

#define MAX_NUM_Q6_RULE 20

#define DEV_NAME "ipa-wan"



#define IPAWANDBG(fmt, args...) \

	pr_debug(DEV_NAME " %s:%d " fmt, __func__, __LINE__, ## args)

#define IPAWANERR(fmt, args...) \

	pr_err(DEV_NAME " %s:%d " fmt, __func__, __LINE__, ## args)



int ipa_qmi_service_init(void);

void ipa_qmi_service_exit(void);



/* sending filter-install-request to modem*/

int qmi_filter_request_send(struct ipa_install_fltr_rule_req_msg_v01 *req);



/* sending filter-installed-notify-request to modem*/

int qmi_filter_notify_send(struct ipa_fltr_installed_notif_req_msg_v01 *req);



int copy_ul_filter_rule_to_ipa(struct ipa_install_fltr_rule_req_msg_v01

		*rule_req, uint32_t *rule_hdl);



int wan_ioctl_init(void);



extern struct elem_info ipa_init_modem_driver_req_msg_data_v01_ei[];

extern struct elem_info ipa_init_modem_driver_resp_msg_data_v01_ei[];

extern struct elem_info ipa_indication_reg_req_msg_data_v01_ei[];

extern struct elem_info ipa_indication_reg_resp_msg_data_v01_ei[];

extern struct elem_info ipa_master_driver_init_complt_ind_msg_data_v01_ei[];

extern struct elem_info ipa_install_fltr_rule_req_msg_data_v01_ei[];

extern struct elem_info ipa_install_fltr_rule_resp_msg_data_v01_ei[];

extern struct elem_info ipa_fltr_installed_notif_req_msg_data_v01_ei[];

extern struct elem_info ipa_fltr_installed_notif_resp_msg_data_v01_ei[];

#endif /* IPA_QMI_SERVICE_H

 */

drivers/platform/msm/ipa/ipa_qmi_service_v01.c

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