>From Masaki Ota <masaki.ota@xxxxxxxxxxx>
Remove the unnecessary codes.
Add the device ID of "HID_DEVICE_ID_ALPS_U1_DUAL" to hid-ids.h
Signed-off-by: Masaki Ota <masaki.ota@xxxxxxxxxxx>
---
drivers/hid/hid-alps.c | 98 +++++++++++++++++++++-----------------------------
drivers/hid/hid-core.c | 3 +-
drivers/hid/hid-ids.h | 1 +
3 files changed, 44 insertions(+), 58 deletions(-)
diff --git a/drivers/hid/hid-alps.c b/drivers/hid/hid-alps.c
index ff64c929..e6a0e88 100644
--- a/drivers/hid/hid-alps.c
+++ b/drivers/hid/hid-alps.c
@@ -15,6 +15,9 @@
#include <asm/unaligned.h>
#include "hid-ids.h"
+#define STATUS_SUCCESS 0
+#define STATUS_FAIL 1
+
/* ALPS Device Product ID */
#define HID_PRODUCT_ID_T3_BTNLESS 0xD0C0
#define HID_PRODUCT_ID_COSMO 0x1202
@@ -98,8 +101,6 @@ 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 +109,10 @@ 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 +131,8 @@ 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 +140,14 @@ 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) {
@@ -155,15 +156,14 @@ 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 = STATUS_SUCCESS;
exit:
kfree(input);
- kfree(readbuf);
return ret;
}
@@ -171,7 +171,7 @@ 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;
+ int i;
short sp_x, sp_y, sp_z;
struct u1_dev *hdata = hid_get_drvdata(hdev);
@@ -182,12 +182,9 @@ 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));
+ x[i] = get_unaligned_le16(data+3+(5*i));
+ y[i] = get_unaligned_le16(data+5+(5*i));
z[i] = data[7+(5*i)] & 0x7F;
- left = data[1] & 0x1;
- right = (data[1] & 0x2) >> 1;
- middle = (data[1] & 0x4) >> 2;
input_mt_slot(hdata->input, i);
@@ -209,33 +206,37 @@ static int alps_raw_event(struct hid_device *hdev,
}
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_event(hdata->input, EV_KEY, BTN_LEFT,
+ data[1] & 0x1);
+ input_event(hdata->input, EV_KEY, BTN_RIGHT,
+ (data[1] & 0x2) >> 1);
+ input_event(hdata->input, EV_KEY, BTN_MIDDLE,
+ (data[1] & 0x4) >> 2);
+
+ 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_x = get_unaligned_le16(data+2);
+ sp_y = get_unaligned_le16(data+4);
sp_z = (data[6] | data[7]) & 0x7FFF;
- left = data[1] & 0x1;
- right = (data[1] & 0x2) >> 1;
- middle = (data[1] & 0x4) >> 2;
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_event(hdata->input2, EV_REL, REL_X, sp_x);
+ input_event(hdata->input2, EV_REL, 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_event(hdata->input2, EV_KEY, BTN_LEFT,
+ data[1] & 0x1);
+ input_event(hdata->input2, EV_KEY, BTN_RIGHT,
+ (data[1] & 0x2) >> 1);
+ input_event(hdata->input2, EV_KEY, BTN_MIDDLE,
+ (data[1] & 0x4) >> 2);
- input_sync(priv->input2);
+ input_sync(hdata->input2);
return 1;
}
@@ -265,15 +266,6 @@ 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 +385,13 @@ 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 +429,7 @@ 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 +480,11 @@ 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);
diff --git a/drivers/hid/hid-core.c b/drivers/hid/hid-core.c
index 3cdbc4b..678d8bd 100644
--- a/drivers/hid/hid-core.c
+++ b/drivers/hid/hid-core.c
@@ -1772,7 +1772,8 @@ static const struct hid_device_id hid_have_special_driver[] = {
{ HID_USB_DEVICE(USB_VENDOR_ID_A4TECH, USB_DEVICE_ID_A4TECH_RP_649) },
{ HID_USB_DEVICE(USB_VENDOR_ID_ACRUX, 0x0802) },
{ HID_USB_DEVICE(USB_VENDOR_ID_ACRUX, 0xf705) },
- { HID_DEVICE(HID_BUS_ANY, HID_GROUP_ANY, USB_VENDOR_ID_ALPS_JP, HID_ANY_ID) },
+ { HID_DEVICE(HID_BUS_ANY, HID_GROUP_ANY, USB_VENDOR_ID_ALPS_JP,
+ HID_DEVICE_ID_ALPS_U1_DUAL) },
{ HID_USB_DEVICE(USB_VENDOR_ID_APPLE, USB_DEVICE_ID_APPLE_MIGHTYMOUSE) },
{ HID_BLUETOOTH_DEVICE(USB_VENDOR_ID_APPLE, USB_DEVICE_ID_APPLE_MAGICMOUSE) },
{ HID_BLUETOOTH_DEVICE(USB_VENDOR_ID_APPLE, USB_DEVICE_ID_APPLE_MAGICTRACKPAD) },
diff --git a/drivers/hid/hid-ids.h b/drivers/hid/hid-ids.h
index a5a429c..c4f665d 100644
--- a/drivers/hid/hid-ids.h
+++ b/drivers/hid/hid-ids.h
@@ -71,6 +71,7 @@
#define USB_DEVICE_ID_IBM_GAMEPAD 0x1101
#define USB_VENDOR_ID_ALPS_JP 0x044E
+#define HID_DEVICE_ID_ALPS_U1_DUAL 0x120B
#define USB_VENDOR_ID_ANTON 0x1130
#define USB_DEVICE_ID_ANTON_TOUCH_PAD 0x3101
--
2.7.4
--
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