summaryrefslogtreecommitdiff
diff options
context:
space:
mode:
authorAlexander Holler <holler@ahsoftware.de>2013-07-03 15:07:00 -0700
committerLinus Torvalds <torvalds@linux-foundation.org>2013-07-03 16:07:54 -0700
commit7e3c741abdae964b8f8aa9f46cf51143e2d0f686 (patch)
tree4e788e34be0ff993825b50f12e236a49973a8683
parenta2c0b85945e75901906d0aa82ef9a0bea96f85ce (diff)
rtc: rtc-hid-sensor-time: allow full years (16bit) in HID reports
The draft for HID-sensors (HUTRR39) currently doesn't define the range for the attribute year. Asking one of the authors revealed that full years (e.g. 2013 instead of just 13) were meant. So we now allow both, 8 bit and 16 bit values for the attribute year and assuming full years when the value is 16 bits wide. We will still support 8 bit values until the specification gets final (and maybe defines a way to set the time too). Signed-off-by: Alexander Holler <holler@ahsoftware.de> Cc: Alessandro Zummo <a.zummo@towertech.it> Cc: Lars-Peter Clausen <lars@metafoo.de> Cc: Jonathan Cameron <jic23@cam.ac.uk> Cc: Jiri Kosina <jkosina@suse.cz> Cc: John Stultz <john.stultz@linaro.org> Cc: Jingoo Han <jg1.han@samsung.com> Signed-off-by: Andrew Morton <akpm@linux-foundation.org> Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
-rw-r--r--drivers/rtc/rtc-hid-sensor-time.c33
1 files changed, 26 insertions, 7 deletions
diff --git a/drivers/rtc/rtc-hid-sensor-time.c b/drivers/rtc/rtc-hid-sensor-time.c
index 63024505dddc..b8c1b106a0b7 100644
--- a/drivers/rtc/rtc-hid-sensor-time.c
+++ b/drivers/rtc/rtc-hid-sensor-time.c
@@ -85,10 +85,13 @@ static int hid_time_capture_sample(struct hid_sensor_hub_device *hsdev,
switch (usage_id) {
case HID_USAGE_SENSOR_TIME_YEAR:
- time_buf->tm_year = *(u8 *)raw_data;
- if (time_buf->tm_year < 70)
- /* assume we are in 1970...2069 */
- time_buf->tm_year += 100;
+ if (raw_len == 1) {
+ time_buf->tm_year = *(u8 *)raw_data;
+ if (time_buf->tm_year < 70)
+ /* assume we are in 1970...2069 */
+ time_buf->tm_year += 100;
+ } else
+ time_buf->tm_year = *(u16 *)raw_data-1900;
break;
case HID_USAGE_SENSOR_TIME_MONTH:
/* sensor sending the month as 1-12, we need 0-11 */
@@ -151,11 +154,27 @@ static int hid_time_parse_report(struct platform_device *pdev,
return -EINVAL;
}
if (time_state->info[i].size != 1) {
- dev_err(&pdev->dev,
- "attribute '%s' not 8 bits wide!\n",
+ /*
+ * The draft for HID-sensors (HUTRR39) currently
+ * doesn't define the range for the year attribute.
+ * Therefor we support both 8 bit (0-99) and 16 bit
+ * (full) as size for the year.
+ */
+ if (time_state->info[i].attrib_id !=
+ HID_USAGE_SENSOR_TIME_YEAR) {
+ dev_err(&pdev->dev,
+ "attribute '%s' not 8 bits wide!\n",
hid_time_attrib_name(
time_state->info[i].attrib_id));
- return -EINVAL;
+ return -EINVAL;
+ }
+ if (time_state->info[i].size != 2) {
+ dev_err(&pdev->dev,
+ "attribute '%s' not 8 or 16 bits wide!\n",
+ hid_time_attrib_name(
+ time_state->info[i].attrib_id));
+ return -EINVAL;
+ }
}
if (time_state->info[i].units !=
HID_USAGE_SENSOR_UNITS_NOT_SPECIFIED &&