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/* Copyright (c) 2009, Code Aurora Forum. All rights reserved.
*
* Redistribution and use in source and binary forms, with or without
* modification, are permitted provided that the following conditions are met:
* * Redistributions of source code must retain the above copyright
* notice, this list of conditions and the following disclaimer.
* * Redistributions in binary form must reproduce the above copyright
* notice, this list of conditions and the following disclaimer in the
* documentation and/or other materials provided with the distribution.
* * Neither the name of Code Aurora Forum nor
* the names of its contributors may be used to endorse or promote
* products derived from this software without specific prior written
* permission.
*
* Alternatively, provided that this notice is retained in full, this software
* may be relicensed by the recipient under the terms of the GNU General Public
* License version 2 ("GPL") and only version 2, in which case the provisions of
* the GPL apply INSTEAD OF those given above. If the recipient relicenses the
* software under the GPL, then the identification text in the MODULE_LICENSE
* macro must be changed to reflect "GPLv2" instead of "Dual BSD/GPL". Once a
* recipient changes the license terms to the GPL, subsequent recipients shall
* not relicense under alternate licensing terms, including the BSD or dual
* BSD/GPL terms. In addition, the following license statement immediately
* below and between the words START and END shall also then apply when this
* software is relicensed under the GPL:
*
* START
*
* 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.
*
* You should have received a copy of the GNU General Public License along with
* this program; if not, write to the Free Software Foundation, Inc.,
* 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301, USA.
*
* END
*
* THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS"
* AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
* IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
* ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT OWNER OR CONTRIBUTORS BE
* LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR
* CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF
* SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS
* INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN
* CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE)
* ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE
* POSSIBILITY OF SUCH DAMAGE.
*
*/
/*
* PROC COMM TEST Driver source file
*/
#include <linux/types.h>
#include <linux/uaccess.h>
#include <linux/debugfs.h>
#include <linux/module.h>
#include "proc_comm.h"
static struct dentry *dent;
static int proc_comm_test_res;
static int proc_comm_reverse_test(void)
{
uint32_t data1, data2;
int rc;
data1 = 10;
data2 = 20;
rc = msm_proc_comm(PCOM_OEM_TEST_CMD, &data1, &data2);
if (rc)
return rc;
if ((data1 != 20) || (data2 != 10))
return -1;
return 0;
}
static ssize_t debug_read(struct file *fp, char __user *buf,
size_t count, loff_t *pos)
{
char _buf[16];
snprintf(_buf, sizeof(_buf), "%i\n", proc_comm_test_res);
return simple_read_from_buffer(buf, count, pos, _buf, strlen(_buf));
}
static ssize_t debug_write(struct file *fp, const char __user *buf,
size_t count, loff_t *pos)
{
unsigned char cmd[64];
int len;
if (count < 1)
return 0;
len = count > 63 ? 63 : count;
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, "reverse_test", 64))
proc_comm_test_res = proc_comm_reverse_test();
else
proc_comm_test_res = -EINVAL;
if (proc_comm_test_res)
pr_err("proc comm test fail %d\n",
proc_comm_test_res);
else
pr_info("proc comm test passed\n");
return count;
}
static int debug_release(struct inode *ip, struct file *fp)
{
return 0;
}
static int debug_open(struct inode *ip, struct file *fp)
{
return 0;
}
static const struct file_operations debug_ops = {
.owner = THIS_MODULE,
.open = debug_open,
.release = debug_release,
.read = debug_read,
.write = debug_write,
};
static void __exit proc_comm_test_mod_exit(void)
{
debugfs_remove(dent);
}
static int __init proc_comm_test_mod_init(void)
{
dent = debugfs_create_file("proc_comm", 0444, 0, NULL, &debug_ops);
proc_comm_test_res = -1;
return 0;
}
module_init(proc_comm_test_mod_init);
module_exit(proc_comm_test_mod_exit);
MODULE_DESCRIPTION("PROC COMM TEST Driver");
MODULE_LICENSE("Dual BSD/GPL");
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