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Date: Thu, 30 Mar 2017 11:53:16 +0900
From: Masaki Ota <012nexus@...il.com>
To: jikos@...nel.org, benjamin.tissoires@...hat.com
Cc: linux-input@...r.kernel.org, linux-kernel@...r.kernel.org,
masaki.ota@...alps.com
Subject: [PATCH 1/2] Alps HID I2C T4 device support
>From Masaki Ota <masai.ota@...alps.com>
-Support Alps HID I2C T4 Touchpad device.
-Laptop names that use this Touchpad:HP Zbook Studio, Elitebook Folio G1, Elitebook 1030 G1, Elitebook 1040 G3
Signed-off-by: Masaki Ota <masaki.ota@...alps.com>
---
drivers/hid/hid-alps.c | 500 +++++++++++++++++++++++++++++++++++++++----------
drivers/hid/hid-core.c | 3 +-
drivers/hid/hid-ids.h | 1 +
3 files changed, 403 insertions(+), 101 deletions(-)
diff --git a/drivers/hid/hid-alps.c b/drivers/hid/hid-alps.c
index ed9c0ea..13a6db1 100644
--- a/drivers/hid/hid-alps.c
+++ b/drivers/hid/hid-alps.c
@@ -52,8 +52,30 @@
#define ADDRESS_U1_PAD_BTN 0x00800052
#define ADDRESS_U1_SP_BTN 0x0080009F
+#define T4_INPUT_REPORT_LEN sizeof(T4_INPUT_REPORT)
+#define T4_FEATURE_REPORT_LEN T4_INPUT_REPORT_LEN
+#define T4_FEATURE_REPORT_ID 7
+#define T4_CMD_REGISTER_READ 0x08
+#define T4_CMD_REGISTER_WRITE 0x07
+
+#define T4_ADDRESS_BASE 0xC2C0
+#define PRM_SYS_CONFIG_1 (T4_ADDRESS_BASE + 0x0002)
+#define T4_PRM_FEED_CONFIG_1 (T4_ADDRESS_BASE + 0x0004)
+#define T4_PRM_FEED_CONFIG_4 (T4_ADDRESS_BASE + 0x001A)
+#define T4_PRM_ID_CONFIG_3 (T4_ADDRESS_BASE + 0x00B0)
+
+
+#define T4_FEEDCFG4_ADVANCED_ABS_ENABLE 0x01
+#define T4_I2C_ABS 0x78
+
+#define T4_COUNT_PER_ELECTRODE 256
#define MAX_TOUCHES 5
+typedef enum {
+ U1,
+ T4,
+ UNKNOWN,
+} DEV_TYPE;
/**
* struct u1_data
*
@@ -61,43 +83,168 @@
* @input2: pointer to the kernel input2 device
* @hdev: pointer to the struct hid_device
*
- * @dev_ctrl: device control parameter
* @dev_type: device type
- * @sen_line_num_x: number of sensor line of X
- * @sen_line_num_y: number of sensor line of Y
- * @pitch_x: sensor pitch of X
- * @pitch_y: sensor pitch of Y
- * @resolution: resolution
- * @btn_info: button information
+ * @max_fingers: total number of fingers
+ * @has_sp: boolean of sp existense
+ * @sp_btn_info: button information
* @x_active_len_mm: active area length of X (mm)
* @y_active_len_mm: active area length of Y (mm)
* @x_max: maximum x coordinate value
* @y_max: maximum y coordinate value
+ * @x_min: minimum x coordinate value
+ * @y_min: minimum y coordinate value
* @btn_cnt: number of buttons
* @sp_btn_cnt: number of stick buttons
*/
-struct u1_dev {
+struct alps_dev {
struct input_dev *input;
struct input_dev *input2;
struct hid_device *hdev;
- u8 dev_ctrl;
- u8 dev_type;
- u8 sen_line_num_x;
- u8 sen_line_num_y;
- u8 pitch_x;
- u8 pitch_y;
- u8 resolution;
- u8 btn_info;
+ DEV_TYPE dev_type;
+ u8 max_fingers;
+ u8 has_sp;
u8 sp_btn_info;
u32 x_active_len_mm;
u32 y_active_len_mm;
u32 x_max;
u32 y_max;
+ u32 x_min;
+ u32 y_min;
u32 btn_cnt;
u32 sp_btn_cnt;
};
+typedef struct _T4_CONTACT_DATA {
+ u8 Palm;
+ u8 x_lo;
+ u8 x_hi;
+ u8 y_lo;
+ u8 y_hi;
+} T4_CONTACT_DATA, *PT4_CONTACT_DATA;
+
+typedef struct _T4_INPUT_REPORT {
+ u8 ReportID;
+ u8 NumContacts;
+ T4_CONTACT_DATA Contact[5];
+ u8 Button;
+ u8 Track[5];
+ u8 ZX[5], ZY[5];
+ u8 PalmTime[5];
+ u8 Kilroy;
+ u16 TimeStamp;
+} T4_INPUT_REPORT, *PT4_INPUT_REPORT;
+
+static u16 t4_calc_check_sum(u8 *buffer,
+ unsigned long offset, unsigned long length)
+{
+ u16 sum1 = 0xFF, sum2 = 0xFF;
+ unsigned long i = 0;
+
+ if (offset + length >= 50)
+ return 0;
+
+ while (length > 0) {
+ u32 tlen = length > 20 ? 20 : length;
+
+ length -= tlen;
+
+ do {
+ sum1 += buffer[offset + i];
+ sum2 += sum1;
+ i++;
+ } while (--tlen > 0);
+
+ sum1 = (sum1 & 0xFF) + (sum1 >> 8);
+ sum2 = (sum2 & 0xFF) + (sum2 >> 8);
+ }
+
+ sum1 = (sum1 & 0xFF) + (sum1 >> 8);
+ sum2 = (sum2 & 0xFF) + (sum2 >> 8);
+
+ return(sum2 << 8 | sum1);
+}
+
+static int T4_read_write_register(struct hid_device *hdev, u32 address,
+ u8 *read_val, u8 write_val, bool read_flag)
+{
+ int ret;
+ u16 check_sum;
+ u8 *input;
+ u8 *readbuf;
+
+ input = kzalloc(T4_FEATURE_REPORT_LEN, GFP_KERNEL);
+ if (!input)
+ return -ENOMEM;
+
+ input[0] = T4_FEATURE_REPORT_ID;
+ if (read_flag) {
+ input[1] = T4_CMD_REGISTER_READ;
+ input[8] = 0x00;
+ } else {
+ input[1] = T4_CMD_REGISTER_WRITE;
+ input[8] = write_val;
+ }
+ put_unaligned_le32(address, input + 2);
+ //input[4] = 0;
+ //input[5] = 0;
+ input[6] = 1;
+ input[7] = 0;
+
+ // Calculate amd append the checksum
+ check_sum = t4_calc_check_sum(input, 1, 8);
+ input[9] = (u8)check_sum;
+ input[10] = (u8)(check_sum >> 8);
+ input[11] = 0;
+
+ ret = hid_hw_raw_request(hdev, T4_FEATURE_REPORT_ID, input,
+ T4_FEATURE_REPORT_LEN,
+ HID_FEATURE_REPORT, HID_REQ_SET_REPORT);
+
+ if (ret < 0) {
+ dev_err(&hdev->dev, "failed to read command (%d)\n", ret);
+ goto exit;
+ }
+
+ if (read_flag) {
+ readbuf = kzalloc(T4_FEATURE_REPORT_LEN, GFP_KERNEL);
+ if (!readbuf) {
+ kfree(input);
+ return -ENOMEM;
+ }
+
+ ret = hid_hw_raw_request(hdev, T4_FEATURE_REPORT_ID, readbuf,
+ T4_FEATURE_REPORT_LEN,
+ HID_FEATURE_REPORT, HID_REQ_GET_REPORT);
+ if (ret < 0) {
+ dev_err(&hdev->dev, "failed read register (%d)\n", ret);
+ goto exit;
+ }
+ if (*(u32 *)&readbuf[6] != address)
+ hid_alert(hdev, "T4_read_write_register address error %x %x\n",
+ *(u32 *)&readbuf[6], address);
+
+ if (*(u16 *)&readbuf[10] != 1)
+ hid_alert(hdev, "T4_read_write_register size error %x\n",
+ *(u16 *)&readbuf[10]);
+
+ check_sum = t4_calc_check_sum(readbuf, 6, 7);
+ if (*(u16 *)&readbuf[13] != check_sum)
+ hid_alert(hdev, "T4_read_write_register checksum error %x %x\n",
+ *(u16 *)&readbuf[13], check_sum);
+
+ *read_val = readbuf[12];
+
+ kfree(readbuf);
+ }
+
+ ret = 0;
+
+exit:
+ kfree(input);
+ return ret;
+}
+
static int u1_read_write_register(struct hid_device *hdev, u32 address,
u8 *read_val, u8 write_val, bool read_flag)
{
@@ -165,21 +312,63 @@ static int u1_read_write_register(struct hid_device *hdev, u32 address,
return ret;
}
-static int alps_raw_event(struct hid_device *hdev,
- struct hid_report *report, u8 *data, int size)
+static int T4_raw_event(struct alps_dev *hdata, u8 *data, int size)
+{
+ unsigned int x, y, z;
+ int i;
+ PT4_INPUT_REPORT p_report = (PT4_INPUT_REPORT)data;
+
+ if (!data)
+ return 0;
+ for (i = 0; i < hdata->max_fingers; i++) {
+ x = p_report->Contact[i].x_hi<<8 | p_report->Contact[i].x_lo;
+ y = p_report->Contact[i].y_hi<<8 | p_report->Contact[i].y_lo;
+ y = hdata->y_max - y + hdata->y_min;
+ z = (p_report->Contact[i].Palm < 0x80 &&
+ p_report->Contact[i].Palm > 0) * 62;
+ if (x == 0xffff) {
+ x = 0;
+ y = 0;
+ z = 0;
+ }
+ input_mt_slot(hdata->input, i);
+
+ if (z != 0) {
+ input_mt_report_slot_state(hdata->input,
+ MT_TOOL_FINGER, 1);
+ } else {
+ input_mt_report_slot_state(hdata->input,
+ MT_TOOL_FINGER, 0);
+ continue;
+ }
+
+ 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_report_key(hdata->input, BTN_LEFT, p_report->Button);
+
+ input_sync(hdata->input);
+ return 1;
+}
+
+static int U1_raw_event(struct alps_dev *hdata, u8 *data, int size)
{
unsigned int x, y, z;
int i;
short sp_x, sp_y;
- struct u1_dev *hdata = hid_get_drvdata(hdev);
+ if (!data)
+ return 0;
switch (data[0]) {
case U1_MOUSE_REPORT_ID:
break;
case U1_FEATURE_REPORT_ID:
break;
case U1_ABSOLUTE_REPORT_ID:
- for (i = 0; i < MAX_TOUCHES; i++) {
+ for (i = 0; i < hdata->max_fingers; i++) {
u8 *contact = &data[i * 5];
x = get_unaligned_le16(contact + 3);
@@ -241,122 +430,246 @@ static int alps_raw_event(struct hid_device *hdev,
return 0;
}
+static int alps_raw_event(struct hid_device *hdev,
+ struct hid_report *report, u8 *data, int size)
+{
+ int ret = 0;
+ struct alps_dev *hdata = hid_get_drvdata(hdev);
+
+ if (hdev->product == HID_PRODUCT_ID_T4_BTNLESS)
+ ret = T4_raw_event(hdata, data, size);
+ else
+ ret = U1_raw_event(hdata, data, size);
+
+ return ret;
+}
+
#ifdef CONFIG_PM
static int alps_post_reset(struct hid_device *hdev)
{
- return u1_read_write_register(hdev, ADDRESS_U1_DEV_CTRL_1,
- NULL, U1_TP_ABS_MODE | U1_SP_ABS_MODE, false);
+ int ret = -1;
+ struct alps_dev *data = hid_get_drvdata(hdev);
+
+ switch (data->dev_type) {
+ case T4:
+ ret = T4_read_write_register(hdev, T4_PRM_FEED_CONFIG_1,
+ NULL, T4_I2C_ABS, false);
+ ret = T4_read_write_register(hdev, T4_PRM_FEED_CONFIG_4,
+ NULL, T4_FEEDCFG4_ADVANCED_ABS_ENABLE, false);
+ break;
+ case U1:
+ ret = u1_read_write_register(hdev,
+ ADDRESS_U1_DEV_CTRL_1, NULL,
+ U1_TP_ABS_MODE | U1_SP_ABS_MODE, false);
+ break;
+ default:
+ break;
+ }
+ return ret;
}
static int alps_post_resume(struct hid_device *hdev)
{
- return u1_read_write_register(hdev, ADDRESS_U1_DEV_CTRL_1,
- NULL, U1_TP_ABS_MODE | U1_SP_ABS_MODE, false);
+ return alps_post_reset(hdev);
}
#endif /* CONFIG_PM */
-static int alps_input_configured(struct hid_device *hdev, struct hid_input *hi)
+static int u1_init(struct hid_device *hdev, struct alps_dev *pri_data)
{
- struct u1_dev *data = hid_get_drvdata(hdev);
- struct input_dev *input = hi->input, *input2;
- struct u1_dev devInfo;
int ret;
- int res_x, res_y, i;
-
- data->input = input;
-
- hid_dbg(hdev, "Opening low level driver\n");
- ret = hid_hw_open(hdev);
- if (ret)
- return ret;
-
- /* Allow incoming hid reports */
- hid_device_io_start(hdev);
+ u8 tmp, dev_ctrl, sen_line_num_x, sen_line_num_y;
+ u8 pitch_x, pitch_y, resolution;
/* Device initialization */
ret = u1_read_write_register(hdev, ADDRESS_U1_DEV_CTRL_1,
- &devInfo.dev_ctrl, 0, true);
+ &dev_ctrl, 0, true);
if (ret < 0) {
dev_err(&hdev->dev, "failed U1_DEV_CTRL_1 (%d)\n", ret);
goto exit;
}
- devInfo.dev_ctrl &= ~U1_DISABLE_DEV;
- devInfo.dev_ctrl |= U1_TP_ABS_MODE;
+ dev_ctrl &= ~U1_DISABLE_DEV;
+ dev_ctrl |= U1_TP_ABS_MODE;
ret = u1_read_write_register(hdev, ADDRESS_U1_DEV_CTRL_1,
- NULL, devInfo.dev_ctrl, false);
+ NULL, dev_ctrl, false);
if (ret < 0) {
dev_err(&hdev->dev, "failed to change TP mode (%d)\n", ret);
goto exit;
}
ret = u1_read_write_register(hdev, ADDRESS_U1_NUM_SENS_X,
- &devInfo.sen_line_num_x, 0, true);
+ &sen_line_num_x, 0, true);
if (ret < 0) {
dev_err(&hdev->dev, "failed U1_NUM_SENS_X (%d)\n", ret);
goto exit;
}
ret = u1_read_write_register(hdev, ADDRESS_U1_NUM_SENS_Y,
- &devInfo.sen_line_num_y, 0, true);
+ &sen_line_num_y, 0, true);
if (ret < 0) {
dev_err(&hdev->dev, "failed U1_NUM_SENS_Y (%d)\n", ret);
goto exit;
}
ret = u1_read_write_register(hdev, ADDRESS_U1_PITCH_SENS_X,
- &devInfo.pitch_x, 0, true);
+ &pitch_x, 0, true);
if (ret < 0) {
dev_err(&hdev->dev, "failed U1_PITCH_SENS_X (%d)\n", ret);
goto exit;
}
ret = u1_read_write_register(hdev, ADDRESS_U1_PITCH_SENS_Y,
- &devInfo.pitch_y, 0, true);
+ &pitch_y, 0, true);
if (ret < 0) {
dev_err(&hdev->dev, "failed U1_PITCH_SENS_Y (%d)\n", ret);
goto exit;
}
ret = u1_read_write_register(hdev, ADDRESS_U1_RESO_DWN_ABS,
- &devInfo.resolution, 0, true);
+ &resolution, 0, true);
if (ret < 0) {
dev_err(&hdev->dev, "failed U1_RESO_DWN_ABS (%d)\n", ret);
goto exit;
}
+ pri_data->x_active_len_mm =
+ (pitch_x * (sen_line_num_x - 1)) / 10;
+ pri_data->y_active_len_mm =
+ (pitch_y * (sen_line_num_y - 1)) / 10;
+
+ pri_data->x_max =
+ (resolution << 2) * (sen_line_num_x - 1);
+ pri_data->x_min = 1;
+ pri_data->y_max =
+ (resolution << 2) * (sen_line_num_y - 1);
+ pri_data->y_min = 1;
ret = u1_read_write_register(hdev, ADDRESS_U1_PAD_BTN,
- &devInfo.btn_info, 0, true);
+ &tmp, 0, true);
if (ret < 0) {
dev_err(&hdev->dev, "failed U1_PAD_BTN (%d)\n", ret);
goto exit;
}
+ if ((tmp & 0x0F) == (tmp & 0xF0) >> 4) {
+ pri_data->btn_cnt = (tmp & 0x0F);
+ } else {
+ /* Button pad */
+ pri_data->btn_cnt = 1;
+ }
+ pri_data->has_sp = 0;
/* Check StickPointer device */
ret = u1_read_write_register(hdev, ADDRESS_U1_DEVICE_TYP,
- &devInfo.dev_type, 0, true);
+ &tmp, 0, true);
if (ret < 0) {
dev_err(&hdev->dev, "failed U1_DEVICE_TYP (%d)\n", ret);
goto exit;
}
+ if (tmp & U1_DEVTYPE_SP_SUPPORT) {
+ dev_ctrl |= U1_SP_ABS_MODE;
+ ret = u1_read_write_register(hdev, ADDRESS_U1_DEV_CTRL_1,
+ NULL, dev_ctrl, false);
+ if (ret < 0) {
+ dev_err(&hdev->dev, "failed SP mode (%d)\n", ret);
+ goto exit;
+ }
+
+ ret = u1_read_write_register(hdev, ADDRESS_U1_SP_BTN,
+ &pri_data->sp_btn_info, 0, true);
+ if (ret < 0) {
+ dev_err(&hdev->dev, "failed U1_SP_BTN (%d)\n", ret);
+ goto exit;
+ }
+ pri_data->has_sp = 1;
+ }
+ pri_data->max_fingers = 5;
+exit:
+ return ret;
+}
+
+static int T4_init(struct hid_device *hdev, struct alps_dev *pri_data)
+{
+ int ret;
+ u8 tmp, sen_line_num_x, sen_line_num_y;
+
+ ret = T4_read_write_register(hdev, T4_PRM_ID_CONFIG_3, &tmp, 0, true);
+ if (ret < 0) {
+ dev_err(&hdev->dev, "failed T4_PRM_ID_CONFIG_3 (%d)\n", ret);
+ goto exit;
+ }
+ sen_line_num_x = 16+((tmp & 0x0F) | (tmp & 0x08 ? 0xF0 : 0));
+ sen_line_num_y = 12+(((tmp & 0xF0) >> 4) | (tmp & 0x80 ? 0xF0 : 0));
+
+ pri_data->x_max = sen_line_num_x * T4_COUNT_PER_ELECTRODE;
+ pri_data->x_min = T4_COUNT_PER_ELECTRODE;
+ pri_data->y_max = sen_line_num_y * T4_COUNT_PER_ELECTRODE;
+ pri_data->y_min = T4_COUNT_PER_ELECTRODE;
+ pri_data->x_active_len_mm = pri_data->y_active_len_mm = 0;
+ pri_data->btn_cnt = 1;
+
+ ret = T4_read_write_register(hdev, PRM_SYS_CONFIG_1, &tmp, 0, true);
+ if (ret < 0) {
+ dev_err(&hdev->dev, "failed PRM_SYS_CONFIG_1 (%d)\n", ret);
+ goto exit;
+ }
+ tmp |= 0x02;
+ ret = T4_read_write_register(hdev, PRM_SYS_CONFIG_1, NULL, tmp, false);
+ if (ret < 0) {
+ dev_err(&hdev->dev, "failed PRM_SYS_CONFIG_1 (%d)\n", ret);
+ goto exit;
+ }
- devInfo.x_active_len_mm =
- (devInfo.pitch_x * (devInfo.sen_line_num_x - 1)) / 10;
- devInfo.y_active_len_mm =
- (devInfo.pitch_y * (devInfo.sen_line_num_y - 1)) / 10;
+ ret = T4_read_write_register(hdev, T4_PRM_FEED_CONFIG_1,
+ NULL, T4_I2C_ABS, false);
+ if (ret < 0) {
+ dev_err(&hdev->dev, "failed T4_PRM_FEED_CONFIG_1 (%d)\n", ret);
+ goto exit;
+ }
- devInfo.x_max =
- (devInfo.resolution << 2) * (devInfo.sen_line_num_x - 1);
- devInfo.y_max =
- (devInfo.resolution << 2) * (devInfo.sen_line_num_y - 1);
+ ret = T4_read_write_register(hdev, T4_PRM_FEED_CONFIG_4, NULL,
+ T4_FEEDCFG4_ADVANCED_ABS_ENABLE, false);
+ if (ret < 0) {
+ dev_err(&hdev->dev, "failed T4_PRM_FEED_CONFIG_4 (%d)\n", ret);
+ goto exit;
+ }
+ pri_data->max_fingers = 5;
+ pri_data->has_sp = 0;
+exit:
+ return ret;
+}
+
+static int alps_input_configured(struct hid_device *hdev, struct hid_input *hi)
+{
+ struct alps_dev *data = hid_get_drvdata(hdev);
+ struct input_dev *input = hi->input, *input2;
+ int ret;
+ int res_x, res_y, i;
+
+ data->input = input;
+
+ hid_dbg(hdev, "Opening low level driver\n");
+ ret = hid_hw_open(hdev);
+ if (ret)
+ return ret;
+
+ /* Allow incoming hid reports */
+ hid_device_io_start(hdev);
+ if (data->dev_type == T4)
+ ret = T4_init(hdev, data);
+ else
+ ret = u1_init(hdev, data);
+
+ if (ret)
+ goto exit;
__set_bit(EV_ABS, input->evbit);
- input_set_abs_params(input, ABS_MT_POSITION_X, 1, devInfo.x_max, 0, 0);
- input_set_abs_params(input, ABS_MT_POSITION_Y, 1, devInfo.y_max, 0, 0);
+ input_set_abs_params(input, ABS_MT_POSITION_X,
+ data->x_min, data->x_max, 0, 0);
+ input_set_abs_params(input, ABS_MT_POSITION_Y,
+ data->y_min, data->y_max, 0, 0);
- if (devInfo.x_active_len_mm && devInfo.y_active_len_mm) {
- res_x = (devInfo.x_max - 1) / devInfo.x_active_len_mm;
- res_y = (devInfo.y_max - 1) / devInfo.y_active_len_mm;
+ if (data->x_active_len_mm && data->y_active_len_mm) {
+ res_x = (data->x_max - 1) / data->x_active_len_mm;
+ res_y = (data->y_max - 1) / data->y_active_len_mm;
input_abs_set_res(input, ABS_MT_POSITION_X, res_x);
input_abs_set_res(input, ABS_MT_POSITION_Y, res_y);
@@ -364,49 +677,25 @@ static int alps_input_configured(struct hid_device *hdev, struct hid_input *hi)
input_set_abs_params(input, ABS_MT_PRESSURE, 0, 64, 0, 0);
- input_mt_init_slots(input, MAX_TOUCHES, INPUT_MT_POINTER);
+ input_mt_init_slots(input, data->max_fingers, INPUT_MT_POINTER);
__set_bit(EV_KEY, input->evbit);
- if ((devInfo.btn_info & 0x0F) == (devInfo.btn_info & 0xF0) >> 4) {
- devInfo.btn_cnt = (devInfo.btn_info & 0x0F);
- } else {
- /* Button pad */
- devInfo.btn_cnt = 1;
+
+ if (data->btn_cnt == 1)
__set_bit(INPUT_PROP_BUTTONPAD, input->propbit);
- }
- for (i = 0; i < devInfo.btn_cnt; i++)
+ for (i = 0; i < data->btn_cnt; i++)
__set_bit(BTN_LEFT + i, input->keybit);
-
/* Stick device initialization */
- if (devInfo.dev_type & U1_DEVTYPE_SP_SUPPORT) {
-
+ if (data->has_sp) {
input2 = input_allocate_device();
if (!input2) {
- ret = -ENOMEM;
- goto exit;
- }
-
- data->input2 = input2;
-
- devInfo.dev_ctrl |= U1_SP_ABS_MODE;
- ret = u1_read_write_register(hdev, ADDRESS_U1_DEV_CTRL_1,
- NULL, devInfo.dev_ctrl, false);
- if (ret < 0) {
- dev_err(&hdev->dev, "failed SP mode (%d)\n", ret);
- input_free_device(input2);
- goto exit;
- }
-
- ret = u1_read_write_register(hdev, ADDRESS_U1_SP_BTN,
- &devInfo.sp_btn_info, 0, true);
- if (ret < 0) {
- dev_err(&hdev->dev, "failed U1_SP_BTN (%d)\n", ret);
input_free_device(input2);
goto exit;
}
+ data->input2 = input2;
input2->phys = input->phys;
input2->name = "DualPoint Stick";
input2->id.bustype = BUS_I2C;
@@ -416,8 +705,8 @@ static int alps_input_configured(struct hid_device *hdev, struct hid_input *hi)
input2->dev.parent = input->dev.parent;
__set_bit(EV_KEY, input2->evbit);
- devInfo.sp_btn_cnt = (devInfo.sp_btn_info & 0x0F);
- for (i = 0; i < devInfo.sp_btn_cnt; i++)
+ data->sp_btn_cnt = (data->sp_btn_info & 0x0F);
+ for (i = 0; i < data->sp_btn_cnt; i++)
__set_bit(BTN_LEFT + i, input2->keybit);
__set_bit(EV_REL, input2->evbit);
@@ -426,8 +715,7 @@ 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);
- ret = input_register_device(data->input2);
- if (ret) {
+ if (input_register_device(data->input2)) {
input_free_device(input2);
goto exit;
}
@@ -448,10 +736,9 @@ static int alps_input_mapping(struct hid_device *hdev,
static int alps_probe(struct hid_device *hdev, const struct hid_device_id *id)
{
- struct u1_dev *data = NULL;
+ struct alps_dev *data = NULL;
int ret;
-
- data = devm_kzalloc(&hdev->dev, sizeof(struct u1_dev), GFP_KERNEL);
+ data = devm_kzalloc(&hdev->dev, sizeof(struct alps_dev), GFP_KERNEL);
if (!data)
return -ENOMEM;
@@ -466,6 +753,17 @@ static int alps_probe(struct hid_device *hdev, const struct hid_device_id *id)
return ret;
}
+ switch (hdev->product) {
+ case HID_DEVICE_ID_ALPS_T4_BTNLESS:
+ data->dev_type = T4;
+ break;
+ case HID_DEVICE_ID_ALPS_U1_DUAL:
+ data->dev_type = U1;
+ break;
+ default:
+ data->dev_type = UNKNOWN;
+ }
+
ret = hid_hw_start(hdev, HID_CONNECT_DEFAULT);
if (ret) {
hid_err(hdev, "hw start failed\n");
@@ -483,6 +781,8 @@ static void alps_remove(struct hid_device *hdev)
static const struct hid_device_id alps_id[] = {
{ HID_DEVICE(HID_BUS_ANY, HID_GROUP_ANY,
USB_VENDOR_ID_ALPS_JP, HID_DEVICE_ID_ALPS_U1_DUAL) },
+ { HID_DEVICE(HID_BUS_ANY, HID_GROUP_ANY,
+ USB_VENDOR_ID_ALPS_JP, HID_DEVICE_ID_ALPS_T4_BTNLESS) },
{ }
};
MODULE_DEVICE_TABLE(hid, alps_id);
diff --git a/drivers/hid/hid-core.c b/drivers/hid/hid-core.c
index 3ceb4a2..f315192 100644
--- a/drivers/hid/hid-core.c
+++ b/drivers/hid/hid-core.c
@@ -1769,7 +1769,8 @@ 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_DEVICE_ID_ALPS_U1_DUAL) },
+ { HID_I2C_DEVICE(USB_VENDOR_ID_ALPS_JP, HID_DEVICE_ID_ALPS_U1_DUAL) },
+ { HID_I2C_DEVICE(USB_VENDOR_ID_ALPS_JP, HID_DEVICE_ID_ALPS_T4_BTNLESS) },
{ 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 0e2e7c5..9239543 100644
--- a/drivers/hid/hid-ids.h
+++ b/drivers/hid/hid-ids.h
@@ -75,6 +75,7 @@
#define USB_VENDOR_ID_ALPS_JP 0x044E
#define HID_DEVICE_ID_ALPS_U1_DUAL 0x120B
+#define HID_DEVICE_ID_ALPS_T4_BTNLESS 0x120C
#define USB_VENDOR_ID_AMI 0x046b
#define USB_DEVICE_ID_AMI_VIRT_KEYBOARD_AND_MOUSE 0xff10
--
2.9.3
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