summaryrefslogtreecommitdiff
path: root/drivers/hid/hid-alps.c
diff options
context:
space:
mode:
Diffstat (limited to 'drivers/hid/hid-alps.c')
-rw-r--r--drivers/hid/hid-alps.c116
1 files changed, 48 insertions, 68 deletions
diff --git a/drivers/hid/hid-alps.c b/drivers/hid/hid-alps.c
index ff64c92906a6..048befde295a 100644
--- a/drivers/hid/hid-alps.c
+++ b/drivers/hid/hid-alps.c
@@ -98,8 +98,6 @@ struct u1_dev {
u32 sp_btn_cnt;
};
-static struct u1_dev *priv;
-
static int u1_read_write_register(struct hid_device *hdev, u32 address,
u8 *read_val, u8 write_val, bool read_flag)
{
@@ -108,16 +106,10 @@ static int u1_read_write_register(struct hid_device *hdev, u32 address,
u8 *input;
u8 *readbuf;
- input = kzalloc(sizeof(u8)*U1_FEATURE_REPORT_LEN, GFP_KERNEL);
+ input = kzalloc(U1_FEATURE_REPORT_LEN, GFP_KERNEL);
if (!input)
return -ENOMEM;
- readbuf = kzalloc(sizeof(u8)*U1_FEATURE_REPORT_LEN, GFP_KERNEL);
- if (!readbuf) {
- kfree(input);
- return -ENOMEM;
- }
-
input[0] = U1_FEATURE_REPORT_ID;
if (read_flag) {
input[1] = U1_CMD_REGISTER_READ;
@@ -136,8 +128,8 @@ static int u1_read_write_register(struct hid_device *hdev, u32 address,
input[7] = check_sum;
ret = hid_hw_raw_request(hdev, U1_FEATURE_REPORT_ID, input,
- sizeof(u8)*U1_FEATURE_REPORT_LEN, HID_FEATURE_REPORT,
- HID_REQ_SET_REPORT);
+ U1_FEATURE_REPORT_LEN,
+ HID_FEATURE_REPORT, HID_REQ_SET_REPORT);
if (ret < 0) {
dev_err(&hdev->dev, "failed to read command (%d)\n", ret);
@@ -145,8 +137,14 @@ static int u1_read_write_register(struct hid_device *hdev, u32 address,
}
if (read_flag) {
+ readbuf = kzalloc(U1_FEATURE_REPORT_LEN, GFP_KERNEL);
+ if (!readbuf) {
+ kfree(input);
+ return -ENOMEM;
+ }
+
ret = hid_hw_raw_request(hdev, U1_FEATURE_REPORT_ID, readbuf,
- sizeof(u8)*U1_FEATURE_REPORT_LEN,
+ U1_FEATURE_REPORT_LEN,
HID_FEATURE_REPORT, HID_REQ_GET_REPORT);
if (ret < 0) {
@@ -155,24 +153,23 @@ static int u1_read_write_register(struct hid_device *hdev, u32 address,
}
*read_val = readbuf[6];
+
+ kfree(readbuf);
}
- kfree(input);
- kfree(readbuf);
- return 0;
+ ret = 0;
exit:
kfree(input);
- kfree(readbuf);
return ret;
}
static int alps_raw_event(struct hid_device *hdev,
struct hid_report *report, u8 *data, int size)
{
- int x[MAX_TOUCHES], y[MAX_TOUCHES], z[MAX_TOUCHES];
- int i, left, right, middle;
- short sp_x, sp_y, sp_z;
+ unsigned int x, y, z;
+ int i;
+ short sp_x, sp_y;
struct u1_dev *hdata = hid_get_drvdata(hdev);
switch (data[0]) {
@@ -182,16 +179,15 @@ static int alps_raw_event(struct hid_device *hdev,
break;
case U1_ABSOLUTE_REPORT_ID:
for (i = 0; i < MAX_TOUCHES; i++) {
- x[i] = (data[3+(5*i)] | (data[4+(5*i)] << 8));
- y[i] = (data[5+(5*i)] | (data[6+(5*i)] << 8));
- z[i] = data[7+(5*i)] & 0x7F;
- left = data[1] & 0x1;
- right = (data[1] & 0x2) >> 1;
- middle = (data[1] & 0x4) >> 2;
+ u8 *contact = &data[i * 5];
+
+ x = get_unaligned_le16(contact + 3);
+ y = get_unaligned_le16(contact + 5);
+ z = contact[7] & 0x7F;
input_mt_slot(hdata->input, i);
- if (z[i] != 0) {
+ if (z != 0) {
input_mt_report_slot_state(hdata->input,
MT_TOOL_FINGER, 1);
} else {
@@ -200,42 +196,43 @@ static int alps_raw_event(struct hid_device *hdev,
break;
}
- input_event(hdata->input, EV_ABS,
- ABS_MT_POSITION_X, x[i]);
- input_event(hdata->input, EV_ABS,
- ABS_MT_POSITION_Y, y[i]);
- input_event(hdata->input, EV_ABS,
- ABS_MT_PRESSURE, z[i]);
+ input_report_abs(hdata->input, ABS_MT_POSITION_X, x);
+ input_report_abs(hdata->input, ABS_MT_POSITION_Y, y);
+ input_report_abs(hdata->input, ABS_MT_PRESSURE, z);
+
}
input_mt_sync_frame(hdata->input);
- input_sync(hdata->input);
- input_event(hdata->input, EV_KEY, BTN_LEFT, left);
- input_event(hdata->input, EV_KEY, BTN_RIGHT, right);
- input_event(hdata->input, EV_KEY, BTN_MIDDLE, middle);
+ input_report_key(hdata->input, BTN_LEFT,
+ data[1] & 0x1);
+ input_report_key(hdata->input, BTN_RIGHT,
+ (data[1] & 0x2));
+ input_report_key(hdata->input, BTN_MIDDLE,
+ (data[1] & 0x4));
+
+ input_sync(hdata->input);
return 1;
case U1_SP_ABSOLUTE_REPORT_ID:
- sp_x = (data[2] | (data[3] << 8));
- sp_y = (data[4] | (data[5] << 8));
- sp_z = (data[6] | data[7]) & 0x7FFF;
- left = data[1] & 0x1;
- right = (data[1] & 0x2) >> 1;
- middle = (data[1] & 0x4) >> 2;
+ sp_x = get_unaligned_le16(data+2);
+ sp_y = get_unaligned_le16(data+4);
sp_x = sp_x / 8;
sp_y = sp_y / 8;
- input_event(priv->input2, EV_REL, REL_X, sp_x);
- input_event(priv->input2, EV_REL, REL_Y, sp_y);
+ input_report_rel(hdata->input2, REL_X, sp_x);
+ input_report_rel(hdata->input2, REL_Y, sp_y);
- input_event(priv->input2, EV_KEY, BTN_LEFT, left);
- input_event(priv->input2, EV_KEY, BTN_RIGHT, right);
- input_event(priv->input2, EV_KEY, BTN_MIDDLE, middle);
+ input_report_key(hdata->input2, BTN_LEFT,
+ data[1] & 0x1);
+ input_report_key(hdata->input2, BTN_RIGHT,
+ (data[1] & 0x2));
+ input_report_key(hdata->input2, BTN_MIDDLE,
+ (data[1] & 0x4));
- input_sync(priv->input2);
+ input_sync(hdata->input2);
return 1;
}
@@ -265,15 +262,6 @@ static int alps_input_configured(struct hid_device *hdev, struct hid_input *hi)
int ret;
int res_x, res_y, i;
- /* Check device product ID */
- switch (hdev->product) {
- case HID_PRODUCT_ID_U1:
- case HID_PRODUCT_ID_U1_DUAL:
- break;
- default:
- return 0;
- }
-
data->input = input;
hid_dbg(hdev, "Opening low level driver\n");
@@ -393,20 +381,13 @@ static int alps_input_configured(struct hid_device *hdev, struct hid_input *hi)
/* Stick device initialization */
if (devInfo.dev_type & U1_DEVTYPE_SP_SUPPORT) {
- priv = kzalloc(sizeof(struct u1_dev), GFP_KERNEL);
- if (!priv) {
- hid_device_io_stop(hdev);
- hid_hw_close(hdev);
- return -ENOMEM;
- }
-
input2 = input_allocate_device();
if (!input2) {
input_free_device(input2);
goto exit;
}
- priv->input2 = input2;
+ data->input2 = input2;
devInfo.dev_ctrl |= U1_SP_ABS_MODE;
ret = u1_read_write_register(hdev, ADDRESS_U1_DEV_CTRL_1,
@@ -444,7 +425,7 @@ static int alps_input_configured(struct hid_device *hdev, struct hid_input *hi)
__set_bit(INPUT_PROP_POINTER, input2->propbit);
__set_bit(INPUT_PROP_POINTING_STICK, input2->propbit);
- if (input_register_device(priv->input2)) {
+ if (input_register_device(data->input2)) {
input_free_device(input2);
goto exit;
}
@@ -495,12 +476,11 @@ static int alps_probe(struct hid_device *hdev, const struct hid_device_id *id)
static void alps_remove(struct hid_device *hdev)
{
hid_hw_stop(hdev);
- kfree(priv);
}
static const struct hid_device_id alps_id[] = {
{ HID_DEVICE(HID_BUS_ANY, HID_GROUP_ANY,
- USB_VENDOR_ID_ALPS_JP, HID_ANY_ID) },
+ USB_VENDOR_ID_ALPS_JP, HID_DEVICE_ID_ALPS_U1_DUAL) },
{ }
};
MODULE_DEVICE_TABLE(hid, alps_id);