#define ETP_FINGER_WIDTH 15
#define ETP_RETRY_COUNT 3
+/* quirks to control the device */
+#define ETP_QUIRK_QUICK_WAKEUP BIT(0)
+
/* The main device structure */
struct elan_tp_data {
struct i2c_client *client;
bool baseline_ready;
u8 clickpad;
bool middle_button;
+
+ u32 quirks; /* Various quirks */
};
+static u32 elan_i2c_lookup_quirks(u16 ic_type, u16 product_id)
+{
+ static const struct {
+ u16 ic_type;
+ u16 product_id;
+ u32 quirks;
+ } elan_i2c_quirks[] = {
+ { 0x0D, ETP_PRODUCT_ID_DELBIN, ETP_QUIRK_QUICK_WAKEUP },
+ { 0x10, ETP_PRODUCT_ID_VOXEL, ETP_QUIRK_QUICK_WAKEUP },
+ { 0x14, ETP_PRODUCT_ID_MAGPIE, ETP_QUIRK_QUICK_WAKEUP },
+ { 0x14, ETP_PRODUCT_ID_BOBBA, ETP_QUIRK_QUICK_WAKEUP },
+ };
+ u32 quirks = 0;
+ int i;
+
+ for (i = 0; i < ARRAY_SIZE(elan_i2c_quirks); i++) {
+ if (elan_i2c_quirks[i].ic_type == ic_type &&
+ elan_i2c_quirks[i].product_id == product_id) {
+ quirks = elan_i2c_quirks[i].quirks;
+ }
+ }
+
+ if (ic_type >= 0x0D && product_id >= 0x123)
+ quirks |= ETP_QUIRK_QUICK_WAKEUP;
+
+ return quirks;
+}
+
static int elan_get_fwinfo(u16 ic_type, u8 iap_version, u16 *validpage_count,
u32 *signature_address, u16 *page_size)
{
return false;
}
-static int __elan_initialize(struct elan_tp_data *data)
+static int __elan_initialize(struct elan_tp_data *data, bool skip_reset)
{
struct i2c_client *client = data->client;
bool woken_up = false;
int error;
- error = data->ops->initialize(client);
- if (error) {
- dev_err(&client->dev, "device initialize failed: %d\n", error);
- return error;
+ if (!skip_reset) {
+ error = data->ops->initialize(client);
+ if (error) {
+ dev_err(&client->dev, "device initialize failed: %d\n", error);
+ return error;
+ }
}
error = elan_query_product(data);
return 0;
}
-static int elan_initialize(struct elan_tp_data *data)
+static int elan_initialize(struct elan_tp_data *data, bool skip_reset)
{
int repeat = ETP_RETRY_COUNT;
int error;
do {
- error = __elan_initialize(data);
+ error = __elan_initialize(data, skip_reset);
if (!error)
return 0;
+ skip_reset = false;
msleep(30);
} while (--repeat > 0);
if (error)
return error;
+ data->quirks = elan_i2c_lookup_quirks(data->ic_type, data->product_id);
+
error = elan_get_fwinfo(data->ic_type, data->iap_version,
&data->fw_validpage_count,
&data->fw_signature_address,
data->ops->iap_reset(client);
} else {
/* Reinitialize TP after fw is updated */
- elan_initialize(data);
+ elan_initialize(data, false);
elan_query_device_info(data);
}
}
/* Initialize the touchpad. */
- error = elan_initialize(data);
+ error = elan_initialize(data, false);
if (error)
return error;
goto err;
}
- error = elan_initialize(data);
+ error = elan_initialize(data, data->quirks & ETP_QUIRK_QUICK_WAKEUP);
if (error)
dev_err(dev, "initialize when resuming failed: %d\n", error);