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authorPrzemo Firszt <przemo@firszt.eu>2012-03-22 18:54:08 +0000
committerJiri Kosina <jkosina@suse.cz>2012-03-28 10:23:47 +0200
commit4202f1de3b4f1edf74a7f8b2f8b56cb5a8398081 (patch)
treeef2328a06c2f39428c516f89b29878e9c58d8eb0 /drivers/hid/hid-wacom.c
parente31e3832927f5ee2d788120826e73d120dd39ea9 (diff)
downloadlinux-4202f1de3b4f1edf74a7f8b2f8b56cb5a8398081.tar.bz2
HID: wacom: Add battery/ac reporting for Intuos4 WL
This patch adds battery/ac reporting for Intuos4 WL. It uses existing sysfs code, but the device reports battery capacity in more fine-grained way, so there has to be a separate lookup table (called batcap_i4). Signed-off-by: Przemo Firszt <przemo@firszt.eu> Reviewed-by: Chris Bagwell <chris@cnpbagwell.com> Signed-off-by: Jiri Kosina <jkosina@suse.cz>
Diffstat (limited to 'drivers/hid/hid-wacom.c')
-rw-r--r--drivers/hid/hid-wacom.c10
1 files changed, 10 insertions, 0 deletions
diff --git a/drivers/hid/hid-wacom.c b/drivers/hid/hid-wacom.c
index edf6cba6037a..f130f40488f6 100644
--- a/drivers/hid/hid-wacom.c
+++ b/drivers/hid/hid-wacom.c
@@ -49,6 +49,8 @@ struct wacom_data {
/*percent of battery capacity for Graphire
8th value means AC online and show 100% capacity */
static unsigned short batcap_gr[8] = { 1, 15, 25, 35, 50, 70, 100, 100 };
+/*percent of battery capacity for Intuos4 WL, AC has a separate bit*/
+static unsigned short batcap_i4[8] = { 1, 15, 30, 45, 60, 70, 85, 100 };
static enum power_supply_property wacom_battery_props[] = {
POWER_SUPPLY_PROP_PRESENT,
@@ -447,6 +449,7 @@ static int wacom_raw_event(struct hid_device *hdev, struct hid_report *report,
struct input_dev *input;
unsigned char *data = (unsigned char *) raw_data;
int i;
+ __u8 power_raw;
if (!(hdev->claimed & HID_CLAIMED_INPUT))
return 0;
@@ -474,6 +477,13 @@ static int wacom_raw_event(struct hid_device *hdev, struct hid_report *report,
wacom_i4_parse_report(hdev, wdata, input, data + i);
i += 10;
wacom_i4_parse_report(hdev, wdata, input, data + i);
+ power_raw = data[i+10];
+ if (power_raw != wdata->power_raw) {
+ wdata->power_raw = power_raw;
+ wdata->battery_capacity = batcap_i4[power_raw & 0x07];
+ wdata->ps_connected = power_raw & 0x08;
+ }
+
break;
default:
hid_err(hdev, "Unknown report: %d,%d size:%d\n",