diff options
Diffstat (limited to 'arch/arm/mach-msm/proc_comm_test.c')
| -rw-r--r-- | arch/arm/mach-msm/proc_comm_test.c | 169 |
1 files changed, 169 insertions, 0 deletions
diff --git a/arch/arm/mach-msm/proc_comm_test.c b/arch/arm/mach-msm/proc_comm_test.c new file mode 100644 index 000000000000..e38b8d651d27 --- /dev/null +++ b/arch/arm/mach-msm/proc_comm_test.c @@ -0,0 +1,169 @@ +/* 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"); |