blob: d070e37c9142643417e874eb8eba746edac923a5 [file] [log] [blame]
/* 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 <asm/uaccess.h>
#include <mach/msm_qmi_interface.h>
#include "kernel_test_service_v01.h"
#define TEST_SERVICE_SVC_ID 0x0000000f
#define TEST_SERVICE_INS_ID 1
static int test_rep_cnt = 10;
module_param_named(rep_cnt, test_rep_cnt, int, S_IRUGO | S_IWUSR | S_IWGRP);
static int test_data_sz = 50;
module_param_named(data_sz, test_data_sz, int, S_IRUGO | S_IWUSR | S_IWGRP);
static int test_clnt_debug_mask;
module_param_named(debug_mask, test_clnt_debug_mask,
int, S_IRUGO | S_IWUSR | S_IWGRP);
#define D(x...) do { \
if (test_clnt_debug_mask) \
pr_debug(x); \
} while (0)
/* Variable to initiate the test through debugfs interface */
static struct dentry *test_dent;
/* Test client port for IPC Router */
static struct qmi_handle *test_clnt;
static int test_clnt_reset;
/* Reader thread to receive responses & indications */
static void test_clnt_recv_msg(struct work_struct *work);
static DECLARE_DELAYED_WORK(work_recv_msg, test_clnt_recv_msg);
static void test_clnt_svc_arrive(struct work_struct *work);
static DECLARE_DELAYED_WORK(work_svc_arrive, test_clnt_svc_arrive);
static void test_clnt_svc_exit(struct work_struct *work);
static DECLARE_DELAYED_WORK(work_svc_exit, test_clnt_svc_exit);
static struct workqueue_struct *test_clnt_workqueue;
/* Variable to hold the test result */
static int test_res;
static int test_qmi_ping_pong_send_sync_msg(void)
{
struct test_ping_req_msg_v01 req;
struct test_ping_resp_msg_v01 resp;
struct msg_desc req_desc, resp_desc;
int rc;
memcpy(req.ping, "ping", sizeof(req.ping));
req.client_name_valid = 0;
req_desc.max_msg_len = TEST_PING_REQ_MAX_MSG_LEN_V01;
req_desc.msg_id = TEST_PING_REQ_MSG_ID_V01;
req_desc.ei_array = test_ping_req_msg_v01_ei;
resp_desc.max_msg_len = TEST_PING_REQ_MAX_MSG_LEN_V01;
resp_desc.msg_id = TEST_PING_REQ_MSG_ID_V01;
resp_desc.ei_array = test_ping_resp_msg_v01_ei;
rc = qmi_send_req_wait(test_clnt, &req_desc, &req, sizeof(req),
&resp_desc, &resp, sizeof(resp), 0);
if (rc < 0) {
pr_err("%s: send req failed %d\n", __func__, rc);
return rc;
}
D("%s: Received %s response\n", __func__, resp.pong);
return rc;
}
static int test_qmi_data_send_sync_msg(unsigned int data_len)
{
struct test_data_req_msg_v01 *req;
struct test_data_resp_msg_v01 *resp;
struct msg_desc req_desc, resp_desc;
int rc, i;
req = kzalloc(sizeof(struct test_data_req_msg_v01), GFP_KERNEL);
if (!req) {
pr_err("%s: Data req msg alloc failed\n", __func__);
return -ENOMEM;
}
resp = kzalloc(sizeof(struct test_data_resp_msg_v01), GFP_KERNEL);
if (!resp) {
pr_err("%s: Data resp msg alloc failed\n", __func__);
kfree(req);
return -ENOMEM;
}
req->data_len = data_len;
for (i = 0; i < data_len; i = i + sizeof(int))
memcpy(req->data + i, (uint8_t *)&i, sizeof(int));
req->client_name_valid = 0;
req_desc.max_msg_len = TEST_DATA_REQ_MAX_MSG_LEN_V01;
req_desc.msg_id = TEST_DATA_REQ_MSG_ID_V01;
req_desc.ei_array = test_data_req_msg_v01_ei;
resp_desc.max_msg_len = TEST_DATA_REQ_MAX_MSG_LEN_V01;
resp_desc.msg_id = TEST_DATA_REQ_MSG_ID_V01;
resp_desc.ei_array = test_data_resp_msg_v01_ei;
rc = qmi_send_req_wait(test_clnt, &req_desc, req, sizeof(*req),
&resp_desc, resp, sizeof(*resp), 0);
if (rc < 0) {
pr_err("%s: send req failed\n", __func__);
goto data_send_err;
}
D("%s: data_valid %d\n", __func__, resp->data_valid);
D("%s: data_len %d\n", __func__, resp->data_len);
data_send_err:
kfree(resp);
kfree(req);
return rc;
}
static void test_clnt_recv_msg(struct work_struct *work)
{
int rc;
rc = qmi_recv_msg(test_clnt);
if (rc < 0)
pr_err("%s: Error receiving message\n", __func__);
}
static void test_clnt_notify(struct qmi_handle *handle,
enum qmi_event_type event, void *notify_priv)
{
switch (event) {
case QMI_RECV_MSG:
queue_delayed_work(test_clnt_workqueue,
&work_recv_msg, 0);
break;
default:
break;
}
}
static void test_clnt_svc_arrive(struct work_struct *work)
{
int rc;
D("%s begins\n", __func__);
/* Create a Local client port for QMI communication */
test_clnt = qmi_handle_create(test_clnt_notify, NULL);
if (!test_clnt) {
pr_err("%s: QMI client handle alloc failed\n", __func__);
return;
}
D("%s: Lookup server name\n", __func__);
rc = qmi_connect_to_service(test_clnt, TEST_SERVICE_SVC_ID,
TEST_SERVICE_INS_ID);
if (rc < 0) {
pr_err("%s: Server not found\n", __func__);
qmi_handle_destroy(test_clnt);
test_clnt = NULL;
return;
}
test_clnt_reset = 0;
D("%s complete\n", __func__);
}
static void test_clnt_svc_exit(struct work_struct *work)
{
D("%s begins\n", __func__);
qmi_handle_destroy(test_clnt);
test_clnt_reset = 1;
test_clnt = NULL;
D("%s complete\n", __func__);
}
static int test_clnt_svc_event_notify(struct notifier_block *this,
unsigned long code,
void *_cmd)
{
D("%s: event %ld\n", __func__, code);
switch (code) {
case QMI_SERVER_ARRIVE:
queue_delayed_work(test_clnt_workqueue,
&work_svc_arrive, 0);
break;
case QMI_SERVER_EXIT:
queue_delayed_work(test_clnt_workqueue,
&work_svc_exit, 0);
break;
default:
break;
}
return 0;
}
static int test_qmi_open(struct inode *ip, struct file *fp)
{
if (!test_clnt) {
pr_err("%s Test client is not initialized\n", __func__);
return -ENODEV;
}
return 0;
}
static ssize_t test_qmi_read(struct file *fp, char __user *buf,
size_t count, loff_t *pos)
{
char _buf[16];
snprintf(_buf, sizeof(_buf), "%d\n", test_res);
test_res = 0;
return simple_read_from_buffer(buf, count, pos,
_buf, strnlen(_buf, 16));
}
static int test_qmi_release(struct inode *ip, struct file *fp)
{
return 0;
}
static ssize_t test_qmi_write(struct file *fp, const char __user *buf,
size_t count, loff_t *pos)
{
unsigned char cmd[64];
int len;
int i;
if (count < 1)
return 0;
len = min(count, (sizeof(cmd) - 1));
if (copy_from_user(cmd, buf, len))
return -EFAULT;
cmd[len] = 0;
if (cmd[len-1] == '\n') {
cmd[len-1] = 0;
len--;
}
if (!strncmp(cmd, "ping_pong", sizeof(cmd))) {
for (i = 0; i < test_rep_cnt; i++) {
test_res = test_qmi_ping_pong_send_sync_msg();
if (test_res == -ENETRESET || test_clnt_reset) {
do {
msleep(50);
} while (test_clnt_reset);
}
}
} else if (!strncmp(cmd, "data", sizeof(cmd))) {
for (i = 0; i < test_rep_cnt; i++) {
test_res = test_qmi_data_send_sync_msg(test_data_sz);
if (test_res == -ENETRESET || test_clnt_reset) {
do {
msleep(50);
} while (test_clnt_reset);
}
}
} else {
test_res = -EINVAL;
}
return count;
}
static struct notifier_block test_clnt_nb = {
.notifier_call = test_clnt_svc_event_notify,
};
static const struct file_operations debug_ops = {
.owner = THIS_MODULE,
.open = test_qmi_open,
.read = test_qmi_read,
.write = test_qmi_write,
.release = test_qmi_release,
};
static int __init test_qmi_init(void)
{
int rc;
test_clnt_workqueue = create_singlethread_workqueue("test_clnt");
if (!test_clnt_workqueue)
return -EFAULT;
rc = qmi_svc_event_notifier_register(TEST_SERVICE_SVC_ID,
TEST_SERVICE_INS_ID, &test_clnt_nb);
if (rc < 0) {
pr_err("%s: notifier register failed\n", __func__);
destroy_workqueue(test_clnt_workqueue);
return rc;
}
test_dent = debugfs_create_file("test_qmi_client", 0444, 0,
NULL, &debug_ops);
if (IS_ERR(test_dent)) {
pr_err("%s: unable to create debugfs %ld\n",
__func__, IS_ERR(test_dent));
test_dent = NULL;
qmi_svc_event_notifier_unregister(TEST_SERVICE_SVC_ID,
TEST_SERVICE_INS_ID, &test_clnt_nb);
destroy_workqueue(test_clnt_workqueue);
return -EFAULT;
}
return 0;
}
static void __exit test_qmi_exit(void)
{
qmi_svc_event_notifier_unregister(TEST_SERVICE_SVC_ID,
TEST_SERVICE_INS_ID, &test_clnt_nb);
destroy_workqueue(test_clnt_workqueue);
debugfs_remove(test_dent);
}
module_init(test_qmi_init);
module_exit(test_qmi_exit);
MODULE_DESCRIPTION("TEST QMI Client Driver");
MODULE_LICENSE("GPL v2");