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HID: wacom: Centralize updating of wacom_wac battery status 

Has the 'wacom_notify_battery' function take on the job of detecting if
updating the power supply is necessary to remove multiple
nearly-identical 'if' blocks.

Signed-off-by: Jason Gerecke <killertofu@gmail.com>
Acked-by: Ping Cheng <pingc@wacom.com>
Signed-off-by: Jiri Kosina <jkosina@suse.cz>
This commit is contained in:
Jason Gerecke 2015-03-06 11:47:39 -08:00 committed by Jiri Kosina
parent 4ca4ec71c8
commit 953f2c5f71
2 changed files with 29 additions and 35 deletions
Show Stats Download Patch File Download Diff File Expand all files Collapse all files

7
drivers/hid/wacom.h
View File

@ -129,13 +129,6 @@ static inline void wacom_schedule_work(struct wacom_wac *wacom_wac)
schedule_work(&wacom->work);
}
static inline void wacom_notify_battery(struct wacom_wac *wacom_wac)
{
struct wacom *wacom = container_of(wacom_wac, struct wacom, wacom_wac);
power_supply_changed(&wacom->battery);
}
extern const struct hid_device_id wacom_ids[];
void wacom_wac_irq(struct wacom_wac *wacom_wac, size_t len);

57
drivers/hid/wacom_wac.c
View File

@ -45,6 +45,24 @@ static unsigned short batcap_gr[8] = { 1, 15, 25, 35, 50, 70, 100, 100 };
*/
static unsigned short batcap_i4[8] = { 1, 15, 30, 45, 60, 70, 85, 100 };
static void wacom_notify_battery(struct wacom_wac *wacom_wac,
int bat_capacity, bool bat_charging, bool ps_connected)
{
struct wacom *wacom = container_of(wacom_wac, struct wacom, wacom_wac);
bool changed = wacom_wac->battery_capacity != bat_capacity ||
wacom_wac->bat_charging != bat_charging ||
wacom_wac->ps_connected != ps_connected;
if (changed) {
wacom_wac->battery_capacity = bat_capacity;
wacom_wac->bat_charging = bat_charging;
wacom_wac->ps_connected = ps_connected;
if (wacom->battery.dev)
power_supply_changed(&wacom->battery);
}
}
static int wacom_penpartner_irq(struct wacom_wac *wacom)
{
unsigned char *data = wacom->data;
@ -419,12 +437,8 @@ static int wacom_graphire_irq(struct wacom_wac *wacom)
rw = (data[7] >> 2 & 0x07);
battery_capacity = batcap_gr[rw];
ps_connected = rw == 7;
if ((wacom->battery_capacity != battery_capacity) ||
(wacom->ps_connected != ps_connected)) {
wacom->battery_capacity = battery_capacity;
wacom->ps_connected = ps_connected;
wacom_notify_battery(wacom);
}
wacom_notify_battery(wacom, battery_capacity, ps_connected,
ps_connected);
}
exit:
return retval;
@ -1014,15 +1028,8 @@ static int wacom_intuos_bt_irq(struct wacom_wac *wacom, size_t len)
bat_charging = (power_raw & 0x08) ? 1 : 0;
ps_connected = (power_raw & 0x10) ? 1 : 0;
battery_capacity = batcap_i4[power_raw & 0x07];
if ((wacom->battery_capacity != battery_capacity) ||
(wacom->bat_charging != bat_charging) ||
(wacom->ps_connected != ps_connected)) {
wacom->battery_capacity = battery_capacity;
wacom->bat_charging = bat_charging;
wacom->ps_connected = ps_connected;
wacom_notify_battery(wacom);
}
wacom_notify_battery(wacom, battery_capacity, bat_charging,
ps_connected);
break;
default:
dev_dbg(wacom->input->dev.parent,
@ -1910,7 +1917,7 @@ static int wacom_wireless_irq(struct wacom_wac *wacom, size_t len)
connected = data[1] & 0x01;
if (connected) {
int pid, battery, ps_connected;
int pid, battery, ps_connected, charging;
if ((wacom->shared->type == INTUOSHT) &&
wacom->shared->touch_input &&
@ -1923,27 +1930,21 @@ static int wacom_wireless_irq(struct wacom_wac *wacom, size_t len)
pid = get_unaligned_be16(&data[6]);
battery = (data[5] & 0x3f) * 100 / 31;
ps_connected = !!(data[5] & 0x80);
charging = ps_connected && wacom->battery_capacity < 100;
if (wacom->pid != pid) {
wacom->pid = pid;
wacom_schedule_work(wacom);
}
if (wacom->shared->type &&
(battery != wacom->battery_capacity ||
ps_connected != wacom->ps_connected)) {
wacom->battery_capacity = battery;
wacom->ps_connected = ps_connected;
wacom->bat_charging = ps_connected &&
wacom->battery_capacity < 100;
wacom_notify_battery(wacom);
}
if (wacom->shared->type)
wacom_notify_battery(wacom, battery, charging,
ps_connected);
} else if (wacom->pid != 0) {
/* disconnected while previously connected */
wacom->pid = 0;
wacom_schedule_work(wacom);
wacom->battery_capacity = 0;
wacom->bat_charging = 0;
wacom->ps_connected = 0;
wacom_notify_battery(wacom, 0, 0, 0);
}
return 0;