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Re: [LTP] [PATCH] RTC Device Driver Tests
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From: Silesh C V <sai...@gm...> - 2010-02-24 12:09:19
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Hi,
Please ignore this mail. I will resend the patch .
Thanks,
Silesh
On Wed, Feb 24, 2010 at 5:30 PM, Silesh C V <Sil...@ln...
> wrote:
> Hi ,
>
> This patch contains tests for the linux RTC driver.The patch is taken
> against feb intermediate release.I have also attached the patch.Please find
> the test log at the end of this mail.Build/Run instructions are explained in
> the README.
>
>
> Signed-off-By: Silesh C V <Sil...@ln...>
> --
> diff -purN ltp-intermediate-20100228.
> orig/testcases/kernel/device-drivers/rtc/Makefile
> ltp-intermediate-20100228/testcases/kernel/device-drivers/rtc/Makefile
> ---
> ltp-intermediate-20100228.orig/testcases/kernel/device-drivers/rtc/Makefile
> 1970-01-01 05:30:00.000000000 +0530
> +++ ltp-intermediate-20100228/testcases/kernel/device-drivers/rtc/Makefile
> 2010-02-24 15:21:33.000000000 +0530
> @@ -0,0 +1,28 @@
> +#
> +# Copyright (c) Larsen & Toubro Infotech Ltd., 2010
> +#
> +# This program is free software; you can redistribute it and/or modify
> +# it under the terms of the GNU General Public License as published by
> +# the Free Software Foundation; either version 2 of the License, or
> +# (at your option) any later version.
> +#
> +# 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 St, Fifth Floor, Boston, MA 02110-1301
> USA
> +#
> +#
> +
> +CFLAGS = -O2 -Wall
> +SRC = test_rtc.c
> +
> +
> +all: $(SRC)
> + $(CC) $(CFLAGS) $(SRC) -o rtc-test
> +
> +clean:
> + rm -f rtc-test
> diff -purN
> ltp-intermediate-20100228.orig/testcases/kernel/device-drivers/rtc/README
> ltp-intermediate-20100228/testcases/kernel/device-drivers/rtc/README
> ---
> ltp-intermediate-20100228.orig/testcases/kernel/device-drivers/rtc/README
> 1970-01-01 05:30:00.000000000 +0530
> +++ ltp-intermediate-20100228/testcases/kernel/device-drivers/rtc/README
> 2010-02-24 14:34:01.000000000 +0530
> @@ -0,0 +1,29 @@
> +test_rtc.c : Test the Real Time Clock driver
> +
> +Tests supported as of now
> +--------------------------
> +1. Read test : This reads the time/date from the RTC
> + ioctls tested :- RTC_RD_TIME.
> +
> +2. Alarm Test: Sets the alarm to 5 seconds in future and makes sure it
> rings.
> + ioctls tested :- RTC_ALM_SET, RTC_ALM_READ, RTC_AIE_ON, RTC_AIE_OFF.
> +
> +3. Update interrupts test : Sets Update interrupts enable on, waits for
> five
> + interrupts and then turns it off.
> + ioctls tested :- RTC_UIE_ON, RTC_UIE_OFF.
> +
> +
> +How to Build
> +------------
> +
> +Enter rtc directory and issue a 'make' .
> +
> +How to Run
> +----------
> +
> + The tests assume the rtc device node to be "/dev/rtc". If you have
> a
> +different node run the test with the name of the node as a parameter.
> +
> +Eg. If your node is /dev/rtc0, then run the test as
> +
> + $ ./rtc-test /dev/rtc0
> diff -purN
> ltp-intermediate-20100228.orig/testcases/kernel/device-drivers/rtc/test_rtc.c
> ltp-intermediate-20100228/testcases/kernel/device-drivers/rtc/test_rtc.c
> ---
> ltp-intermediate-20100228.orig/testcases/kernel/device-drivers/rtc/test_rtc.c
> 1970-01-01 05:30:00.000000000 +0530
> +++
> ltp-intermediate-20100228/testcases/kernel/device-drivers/rtc/test_rtc.c
> 2010-02-24 15:17:59.000000000 +0530
> @@ -0,0 +1,175 @@
> +/* test_rtc.c
> + *
> + * Copyright (c) Larsen & Toubro Infotech Ltd., 2010
> + *
> + * Contact : Silesh C V <Sil...@ln...>
> + *
> + * This program is free software; you can redistribute it and/or modify
> + * it under the terms of the GNU General Public License as published by
> + * the Free Software Foundation; either version 2 of the License, or
> + * (at your option) any later version.
> + *
> + * 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., 59 Temple Place, Suite 330, Boston, MA 02111-1307
> USA
> + *
> + */
> +
> +#include <sys/ioctl.h>
> +#include <stdio.h>
> +#include <stdlib.h>
> +#include <fcntl.h>
> +#include <unistd.h>
> +#include <linux/rtc.h>
> +#include <errno.h>
> +
> +int rtc_fd = -1;
> +
> +void read_alarm_test(void)
> +{
> + struct rtc_time rtc_tm;
> + int ret;
> + unsigned long data;
> +
> + printf("\nRTC READ TEST:\n");
> +
> + /*Read RTC Time*/
> + ret = ioctl(rtc_fd, RTC_RD_TIME, &rtc_tm);
> + if (ret == -1) {
> + perror("RTC_RD_TIME ioctl");
> + printf("RTC READ TEST Failed\n");
> + return;
> + }
> +
> + printf("RTC READ TEST Passed");
> + printf("\nCurrent RTC date/time is %d-%d-%d, %02d:%02d:%02d.\n",
> + rtc_tm.tm_mday, rtc_tm.tm_mon + 1, rtc_tm.tm_year + 1900,
> + rtc_tm.tm_hour, rtc_tm.tm_min, rtc_tm.tm_sec);
> +
> + printf("\nRTC ALARM TEST :\n");
> +
> + /*set Alarm to 5 Seconds*/
> + rtc_tm.tm_sec += 5;
> + if (rtc_tm.tm_sec >= 60) {
> + rtc_tm.tm_sec %= 60;
> + rtc_tm.tm_min++;
> + }
> +
> + if (rtc_tm.tm_min == 60) {
> + rtc_tm.tm_min = 0;
> + rtc_tm.tm_hour++;
> + }
> +
> + if (rtc_tm.tm_hour == 24)
> + rtc_tm.tm_hour = 0;
> +
> + ret = ioctl(rtc_fd, RTC_ALM_SET, &rtc_tm);
> + if (ret == -1) {
> + perror("RTC_ALM_SET ioctl");
> + printf("RTC ALARM TEST Failed\n");
> + return;
> + }
> +
> + /*Read current alarm time*/
> + ret = ioctl(rtc_fd, RTC_ALM_READ, &rtc_tm);
> + if (ret == -1) {
> + perror("RTC_ALM_READ ioctl");
> + printf("RTC ALARM TEST Failed\n");
> + return;
> + }
> +
> + printf("Alarm time set to %02d:%02d:%02d.\n",
> + rtc_tm.tm_hour, rtc_tm.tm_min, rtc_tm.tm_sec);
> + /* Enable alarm interrupts */
> + ret = ioctl(rtc_fd, RTC_AIE_ON, 0);
> + if (ret == -1) {
> + perror("RTC_AIE_ON ioctl");
> + printf("RTC ALARM TEST Failed\n");
> + return;
> + }
> +
> + printf("Waiting 5 seconds for the alarm...\n");
> + ret = read(rtc_fd, &data, sizeof(unsigned long));
> + if (ret == -1) {
> + perror("read");
> + printf("RTC ALARM TEST Failed\n");
> + return;
> + }
> +
> + printf("Alarm rang.\n");
> + /* Disable alarm interrupts */
> + ret = ioctl(rtc_fd, RTC_AIE_OFF, 0);
> + if (ret == -1) {
> + perror("RTC_AIE_OFF ioctl");
> + printf("RTC ALARM TEST Failed\n");
> + return;
> + }
> +
> + printf("RTC ALARM TEST Passed\n");
> +}
> +
> +void update_interrupts_test(void)
> +{
> + int ret, i;
> + unsigned long data;
> +
> + printf("\nRTC UPDATE INTERRUPTS TEST :\n");
> + /*Turn on update interrupts*/
> + ret = ioctl(rtc_fd, RTC_UIE_ON, 0);
> + if (ret == -1) {
> + perror("RTC_UIE_ON ioctl");
> + printf("RTC UPDATE INTERRUPTS TEST Failed\n");
> + return;
> + }
> +
> + printf("Waiting for 5 update interrupts...\n");
> + for (i = 1; i < 6; i++) {
> + ret = read(rtc_fd, &data, sizeof(unsigned long));
> + if (ret == -1) {
> + perror("read");
> + printf("RTC UPDATE INTERRUPTS TEST Failed\n");
> + return;
> + }
> + printf("Update interrupt %d\n", i);
> + }
> +
> + /* Turn off update interrupts */
> + ret = ioctl(rtc_fd, RTC_UIE_OFF, 0);
> + if (ret == -1) {
> + perror("RTC_UIE_OFF ioctl");
> + printf("RTC UPDATE INTERRUPTS TEST Failed\n");
> + return;
> + }
> + printf("RTC UPDATE INTERRUPTS TEST Passed\n");
> +
> +}
> +
> +int main(int argc, char **argv)
> +{
> + char *rtc_dev = "/dev/rtc";
> +
> + if (argc == 2)
> + rtc_dev = argv[1];
> +
> + rtc_fd = open(rtc_dev, O_RDONLY);
> + if (rtc_fd < 0) {
> + perror(rtc_dev);
> + exit(errno);
> + }
> +
> + /*Read and alarm tests*/
> + read_alarm_test();
> +
> + /*Update interrupts test*/
> + update_interrupts_test();
> +
> + close(rtc_fd);
> +
> + printf("\nRTC Tests Done!\n");
> + return 0;
> +}
> --
>
> test log
> ------------------------------
>
> RTC READ TEST:
> RTC READ TEST Passed
> Current RTC date/time is 24-2-2010, 17:03:05.
>
> RTC ALARM TEST :
> Alarm time set to 17:03:10.
> Waiting 5 seconds for the alarm...
> Alarm rang.
> RTC ALARM TEST Passed
>
> RTC UPDATE INTERRUPTS TEST :
> Waiting for 5 update interrupts...
> Update interrupt 1
> Update interrupt 2
> Update interrupt 3
> Update interrupt 4
> Update interrupt 5
> RTC UPDATE INTERRUPTS TEST Passed
>
> RTC Tests Done!
> ---------------------------------------------------------
>
>
> Thanks .
> Silesh
>
>
>
--
Silesh
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