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 <prz...@firszt.eu>
Reviewed-by: Chris Bagwell <ch...@cnpbagwell.com>
---
drivers/hid/hid-wacom.c | 10 ++++++++++
1 files changed, 10 insertions(+), 0 deletions(-)
diff --git a/drivers/hid/hid-wacom.c b/drivers/hid/hid-wacom.c
index 9c15494..43a96d1 100644
--- a/drivers/hid/hid-wacom.c
+++ b/drivers/hid/hid-wacom.c
@@ -51,6 +51,8 @@ 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,
@@ -449,6 +451,7 @@ 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;
@@ -476,6 +479,13 @@ 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",
--
1.7.6.4
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