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Merge branch 'for-6.6/wacom' into for-linus

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Battery fixes by Aaron Armstrong Skomra
This commit is contained in:
Benjamin Tissoires 2023-08-31 10:46:32 +02:00
commit d4de578ae8
4 changed files with 37 additions and 19 deletions
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1
drivers/hid/wacom.h
View File

@ -150,6 +150,7 @@ struct wacom_remote {
struct input_dev *input;
bool registered;
struct wacom_battery battery;
ktime_t active_time;
} remotes[WACOM_MAX_REMOTES];
};

44
drivers/hid/wacom_sys.c
View File

@ -1997,7 +1997,7 @@ static int wacom_initialize_remotes(struct wacom *wacom)
spin_lock_init(&remote->remote_lock);
error = kfifo_alloc(&remote->remote_fifo,
5 * sizeof(struct wacom_remote_data),
5 * sizeof(struct wacom_remote_work_data),
GFP_KERNEL);
if (error) {
hid_err(wacom->hdev, "failed allocating remote_fifo\n");
@ -2523,6 +2523,18 @@ fail:
return;
}
static void wacom_remote_destroy_battery(struct wacom *wacom, int index)
{
struct wacom_remote *remote = wacom->remote;
if (remote->remotes[index].battery.battery) {
devres_release_group(&wacom->hdev->dev,
&remote->remotes[index].battery.bat_desc);
remote->remotes[index].battery.battery = NULL;
remote->remotes[index].active_time = 0;
}
}
static void wacom_remote_destroy_one(struct wacom *wacom, unsigned int index)
{
struct wacom_remote *remote = wacom->remote;
@ -2537,9 +2549,7 @@ static void wacom_remote_destroy_one(struct wacom *wacom, unsigned int index)
remote->remotes[i].registered = false;
spin_unlock_irqrestore(&remote->remote_lock, flags);
if (remote->remotes[i].battery.battery)
devres_release_group(&wacom->hdev->dev,
&remote->remotes[i].battery.bat_desc);
wacom_remote_destroy_battery(wacom, i);
if (remote->remotes[i].group.name)
devres_release_group(&wacom->hdev->dev,
@ -2547,7 +2557,6 @@ static void wacom_remote_destroy_one(struct wacom *wacom, unsigned int index)
remote->remotes[i].serial = 0;
remote->remotes[i].group.name = NULL;
remote->remotes[i].battery.battery = NULL;
wacom->led.groups[i].select = WACOM_STATUS_UNKNOWN;
}
}
@ -2632,6 +2641,9 @@ static int wacom_remote_attach_battery(struct wacom *wacom, int index)
if (remote->remotes[index].battery.battery)
return 0;
if (!remote->remotes[index].active_time)
return 0;
if (wacom->led.groups[index].select == WACOM_STATUS_UNKNOWN)
return 0;
@ -2647,17 +2659,19 @@ static void wacom_remote_work(struct work_struct *work)
{
struct wacom *wacom = container_of(work, struct wacom, remote_work);
struct wacom_remote *remote = wacom->remote;
struct wacom_remote_data data;
ktime_t kt = ktime_get();
struct wacom_remote_work_data remote_work_data;
unsigned long flags;
unsigned int count;
u32 serial;
u32 work_serial;
int i;
spin_lock_irqsave(&remote->remote_lock, flags);
count = kfifo_out(&remote->remote_fifo, &data, sizeof(data));
count = kfifo_out(&remote->remote_fifo, &remote_work_data,
sizeof(remote_work_data));
if (count != sizeof(data)) {
if (count != sizeof(remote_work_data)) {
hid_err(wacom->hdev,
"workitem triggered without status available\n");
spin_unlock_irqrestore(&remote->remote_lock, flags);
@ -2670,10 +2684,14 @@ static void wacom_remote_work(struct work_struct *work)
spin_unlock_irqrestore(&remote->remote_lock, flags);
for (i = 0; i < WACOM_MAX_REMOTES; i++) {
serial = data.remote[i].serial;
if (data.remote[i].connected) {
work_serial = remote_work_data.remote[i].serial;
if (work_serial) {
if (remote->remotes[i].serial == serial) {
if (kt - remote->remotes[i].active_time > WACOM_REMOTE_BATTERY_TIMEOUT
&& remote->remotes[i].active_time != 0)
wacom_remote_destroy_battery(wacom, i);
if (remote->remotes[i].serial == work_serial) {
wacom_remote_attach_battery(wacom, i);
continue;
}
@ -2681,7 +2699,7 @@ static void wacom_remote_work(struct work_struct *work)
if (remote->remotes[i].serial)
wacom_remote_destroy_one(wacom, i);
wacom_remote_create_one(wacom, serial, i);
wacom_remote_create_one(wacom, work_serial, i);
} else if (remote->remotes[i].serial) {
wacom_remote_destroy_one(wacom, i);

7
drivers/hid/wacom_wac.c
View File

@ -1134,6 +1134,7 @@ static int wacom_remote_irq(struct wacom_wac *wacom_wac, size_t len)
if (index < 0 || !remote->remotes[index].registered)
goto out;
remote->remotes[i].active_time = ktime_get();
input = remote->remotes[index].input;
input_report_key(input, BTN_0, (data[9] & 0x01));
@ -1196,22 +1197,20 @@ static void wacom_remote_status_irq(struct wacom_wac *wacom_wac, size_t len)
struct wacom *wacom = container_of(wacom_wac, struct wacom, wacom_wac);
unsigned char *data = wacom_wac->data;
struct wacom_remote *remote = wacom->remote;
struct wacom_remote_data remote_data;
struct wacom_remote_work_data remote_data;
unsigned long flags;
int i, ret;
if (data[0] != WACOM_REPORT_DEVICE_LIST)
return;
memset(&remote_data, 0, sizeof(struct wacom_remote_data));
memset(&remote_data, 0, sizeof(struct wacom_remote_work_data));
for (i = 0; i < WACOM_MAX_REMOTES; i++) {
int j = i * 6;
int serial = (data[j+6] << 16) + (data[j+5] << 8) + data[j+4];
bool connected = data[j+2];
remote_data.remote[i].serial = serial;
remote_data.remote[i].connected = connected;
}
spin_lock_irqsave(&remote->remote_lock, flags);

4
drivers/hid/wacom_wac.h
View File

@ -13,6 +13,7 @@
#define WACOM_NAME_MAX 64
#define WACOM_MAX_REMOTES 5
#define WACOM_STATUS_UNKNOWN 255
#define WACOM_REMOTE_BATTERY_TIMEOUT 21000000000ll
/* packet length for individual models */
#define WACOM_PKGLEN_BBFUN 9
@ -327,10 +328,9 @@ struct hid_data {
ktime_t time_delayed;
};
struct wacom_remote_data {
struct wacom_remote_work_data {
struct {
u32 serial;
bool connected;
} remote[WACOM_MAX_REMOTES];
};