This patch doesn't change the way battery/ac is reported, but the changes are
required to facilitate battery reporting for Intuos4 WL.
wdata->battery_capacity now stores actual battery capacity as opposed to raw
value reported by wacom graphire previously. Power supply state is now stored
in a separate variable - it used to be calculated on-the-fly in
wacom_ac_get_property function. The raw value has to be stored as well to be
able to determine if it has changed.
Signed-off-by: Przemo Firszt <prz...@firszt.eu>
Reviewed-by: Chris Bagwell <ch...@cnpbagwell.com>
---
drivers/hid/hid-wacom.c | 34 +++++++++++++++++-----------------
1 files changed, 17 insertions(+), 17 deletions(-)
diff --git a/drivers/hid/hid-wacom.c b/drivers/hid/hid-wacom.c
index 09d102c..9c15494 100644
--- a/drivers/hid/hid-wacom.c
+++ b/drivers/hid/hid-wacom.c
@@ -41,13 +41,16 @@ struct wacom_data {
__u32 id;
__u32 serial;
unsigned char high_speed;
- int battery_capacity;
+ __u8 battery_capacity;
+ __u8 power_raw;
+ __u8 ps_connected;
struct power_supply battery;
struct power_supply ac;
};
-/*percent of battery capacity, 0 means AC online*/
-static unsigned short batcap[8] = { 1, 15, 25, 35, 50, 70, 100, 0 };
+/*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 };
static enum power_supply_property wacom_battery_props[] = {
POWER_SUPPLY_PROP_PRESENT,
@@ -67,7 +70,6 @@ static int wacom_battery_get_property(struct power_supply
*psy,
{
struct wacom_data *wdata = container_of(psy,
struct wacom_data, battery);
- int power_state = batcap[wdata->battery_capacity];
int ret = 0;
switch (psp) {
@@ -78,11 +80,7 @@ static int wacom_battery_get_property(struct power_supply
*psy,
val->intval = POWER_SUPPLY_SCOPE_DEVICE;
break;
case POWER_SUPPLY_PROP_CAPACITY:
- /* show 100% battery capacity when charging */
- if (power_state == 0)
- val->intval = 100;
- else
- val->intval = power_state;
+ val->intval = wdata->battery_capacity;
break;
default:
ret = -EINVAL;
@@ -96,17 +94,13 @@ static int wacom_ac_get_property(struct power_supply *psy,
union power_supply_propval *val)
{
struct wacom_data *wdata = container_of(psy, struct wacom_data, ac);
- int power_state = batcap[wdata->battery_capacity];
int ret = 0;
switch (psp) {
case POWER_SUPPLY_PROP_PRESENT:
/* fall through */
case POWER_SUPPLY_PROP_ONLINE:
- if (power_state == 0)
- val->intval = 1;
- else
- val->intval = 0;
+ val->intval = wdata->ps_connected;
break;
case POWER_SUPPLY_PROP_SCOPE:
val->intval = POWER_SUPPLY_SCOPE_DEVICE;
@@ -306,10 +300,16 @@ static int wacom_gr_parse_report(struct hid_device *hdev,
input_sync(input);
}
- /* Store current battery capacity */
+ /* Store current battery capacity and power supply state*/
rw = (data[7] >> 2 & 0x07);
- if (rw != wdata->battery_capacity)
- wdata->battery_capacity = rw;
+ if (rw != wdata->power_raw) {
+ wdata->power_raw = rw;
+ wdata->battery_capacity = batcap_gr[rw];
+ if (rw == 7)
+ wdata->ps_connected = 1;
+ else
+ wdata->ps_connected = 0;
+ }
return 1;
}
--
1.7.6.4
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