From 2c3c1048746a4622d8c89a29670120dc8fab93c4 Mon Sep 17 00:00:00 2001 From: Daniel Baumann Date: Sun, 7 Apr 2024 20:49:45 +0200 Subject: Adding upstream version 6.1.76. Signed-off-by: Daniel Baumann --- drivers/hid/hid-alps.c | 859 +++++++++++++++++++++++++++++++++++++++++++++++++ 1 file changed, 859 insertions(+) create mode 100644 drivers/hid/hid-alps.c (limited to 'drivers/hid/hid-alps.c') diff --git a/drivers/hid/hid-alps.c b/drivers/hid/hid-alps.c new file mode 100644 index 000000000..db146d0f7 --- /dev/null +++ b/drivers/hid/hid-alps.c @@ -0,0 +1,859 @@ +// SPDX-License-Identifier: GPL-2.0-or-later +/* + * Copyright (c) 2016 Masaki Ota + */ + +#include +#include +#include +#include +#include +#include +#include "hid-ids.h" + +/* ALPS Device Product ID */ +#define HID_PRODUCT_ID_T3_BTNLESS 0xD0C0 +#define HID_PRODUCT_ID_COSMO 0x1202 +#define HID_PRODUCT_ID_U1_PTP_1 0x1207 +#define HID_PRODUCT_ID_U1 0x1209 +#define HID_PRODUCT_ID_U1_PTP_2 0x120A +#define HID_PRODUCT_ID_U1_DUAL 0x120B +#define HID_PRODUCT_ID_T4_BTNLESS 0x120C + +#define DEV_SINGLEPOINT 0x01 +#define DEV_DUALPOINT 0x02 + +#define U1_MOUSE_REPORT_ID 0x01 /* Mouse data ReportID */ +#define U1_ABSOLUTE_REPORT_ID 0x03 /* Absolute data ReportID */ +#define U1_ABSOLUTE_REPORT_ID_SECD 0x02 /* FW-PTP Absolute data ReportID */ +#define U1_FEATURE_REPORT_ID 0x05 /* Feature ReportID */ +#define U1_SP_ABSOLUTE_REPORT_ID 0x06 /* Feature ReportID */ + +#define U1_FEATURE_REPORT_LEN 0x08 /* Feature Report Length */ +#define U1_FEATURE_REPORT_LEN_ALL 0x0A +#define U1_CMD_REGISTER_READ 0xD1 +#define U1_CMD_REGISTER_WRITE 0xD2 + +#define U1_DEVTYPE_SP_SUPPORT 0x10 /* SP Support */ +#define U1_DISABLE_DEV 0x01 +#define U1_TP_ABS_MODE 0x02 +#define U1_SP_ABS_MODE 0x80 + +#define ADDRESS_U1_DEV_CTRL_1 0x00800040 +#define ADDRESS_U1_DEVICE_TYP 0x00800043 +#define ADDRESS_U1_NUM_SENS_X 0x00800047 +#define ADDRESS_U1_NUM_SENS_Y 0x00800048 +#define ADDRESS_U1_PITCH_SENS_X 0x00800049 +#define ADDRESS_U1_PITCH_SENS_Y 0x0080004A +#define ADDRESS_U1_RESO_DWN_ABS 0x0080004E +#define ADDRESS_U1_PAD_BTN 0x00800052 +#define ADDRESS_U1_SP_BTN 0x0080009F + +#define T4_INPUT_REPORT_LEN sizeof(struct 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 + +enum dev_num { + U1, + T4, + UNKNOWN, +}; +/** + * struct alps_dev + * + * @input: pointer to the kernel input device + * @input2: pointer to the kernel input2 device + * @hdev: pointer to the struct hid_device + * + * @dev_type: device type + * @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 alps_dev { + struct input_dev *input; + struct input_dev *input2; + struct hid_device *hdev; + + enum dev_num 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; +}; + +struct t4_contact_data { + u8 palm; + u8 x_lo; + u8 x_hi; + u8 y_lo; + u8 y_hi; +}; + +struct t4_input_report { + u8 reportID; + u8 numContacts; + struct t4_contact_data contact[5]; + u8 button; + u8 track[5]; + u8 zx[5], zy[5]; + u8 palmTime[5]; + u8 kilroy; + u16 timeStamp; +}; + +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 = NULL; + + 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[6] = 1; + input[7] = 0; + + /* Calculate 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) { + ret = -ENOMEM; + goto exit; + } + + 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_readbuf; + } + + ret = -EINVAL; + + if (*(u32 *)&readbuf[6] != address) { + dev_err(&hdev->dev, "read register address error (%x,%x)\n", + *(u32 *)&readbuf[6], address); + goto exit_readbuf; + } + + if (*(u16 *)&readbuf[10] != 1) { + dev_err(&hdev->dev, "read register size error (%x)\n", + *(u16 *)&readbuf[10]); + goto exit_readbuf; + } + + check_sum = t4_calc_check_sum(readbuf, 6, 7); + if (*(u16 *)&readbuf[13] != check_sum) { + dev_err(&hdev->dev, "read register checksum error (%x,%x)\n", + *(u16 *)&readbuf[13], check_sum); + goto exit_readbuf; + } + + *read_val = readbuf[12]; + } + + ret = 0; + +exit_readbuf: + kfree(readbuf); +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) +{ + int ret, i; + u8 check_sum; + u8 *input; + u8 *readbuf; + + input = kzalloc(U1_FEATURE_REPORT_LEN, GFP_KERNEL); + if (!input) + return -ENOMEM; + + input[0] = U1_FEATURE_REPORT_ID; + if (read_flag) { + input[1] = U1_CMD_REGISTER_READ; + input[6] = 0x00; + } else { + input[1] = U1_CMD_REGISTER_WRITE; + input[6] = write_val; + } + + put_unaligned_le32(address, input + 2); + + /* Calculate the checksum */ + check_sum = U1_FEATURE_REPORT_LEN_ALL; + for (i = 0; i < U1_FEATURE_REPORT_LEN - 1; i++) + check_sum += input[i]; + + input[7] = check_sum; + ret = hid_hw_raw_request(hdev, U1_FEATURE_REPORT_ID, input, + 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); + goto exit; + } + + if (read_flag) { + readbuf = kzalloc(U1_FEATURE_REPORT_LEN, GFP_KERNEL); + if (!readbuf) { + ret = -ENOMEM; + goto exit; + } + + ret = hid_hw_raw_request(hdev, U1_FEATURE_REPORT_ID, readbuf, + U1_FEATURE_REPORT_LEN, + HID_FEATURE_REPORT, HID_REQ_GET_REPORT); + + if (ret < 0) { + dev_err(&hdev->dev, "failed read register (%d)\n", ret); + kfree(readbuf); + goto exit; + } + + *read_val = readbuf[6]; + + kfree(readbuf); + } + + ret = 0; + +exit: + kfree(input); + return ret; +} + +static int t4_raw_event(struct alps_dev *hdata, u8 *data, int size) +{ + unsigned int x, y, z; + int i; + struct t4_input_report *p_report = (struct t4_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); + + input_mt_report_slot_state(hdata->input, + MT_TOOL_FINGER, z != 0); + + if (!z) + 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; + + if (!data) + return 0; + switch (data[0]) { + case U1_MOUSE_REPORT_ID: + break; + case U1_FEATURE_REPORT_ID: + break; + case U1_ABSOLUTE_REPORT_ID: + case U1_ABSOLUTE_REPORT_ID_SECD: + for (i = 0; i < hdata->max_fingers; i++) { + 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 != 0) { + input_mt_report_slot_state(hdata->input, + MT_TOOL_FINGER, 1); + 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); + } else { + input_mt_report_slot_inactive(hdata->input); + } + } + + input_mt_sync_frame(hdata->input); + + 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 = get_unaligned_le16(data+2); + sp_y = get_unaligned_le16(data+4); + + sp_x = sp_x / 8; + sp_y = sp_y / 8; + + input_report_rel(hdata->input2, REL_X, sp_x); + input_report_rel(hdata->input2, REL_Y, sp_y); + + 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(hdata->input2); + + return 1; + } + + 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); + + switch (hdev->product) { + case HID_PRODUCT_ID_T4_BTNLESS: + ret = t4_raw_event(hdata, data, size); + break; + default: + ret = u1_raw_event(hdata, data, size); + break; + } + return ret; +} + +static int __maybe_unused alps_post_reset(struct hid_device *hdev) +{ + 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); + if (ret < 0) { + dev_err(&hdev->dev, "failed T4_PRM_FEED_CONFIG_1 (%d)\n", + ret); + goto exit; + } + + 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; + } + break; + case U1: + ret = u1_read_write_register(hdev, + ADDRESS_U1_DEV_CTRL_1, NULL, + U1_TP_ABS_MODE | U1_SP_ABS_MODE, false); + if (ret < 0) { + dev_err(&hdev->dev, "failed to change TP mode (%d)\n", + ret); + goto exit; + } + break; + default: + break; + } + +exit: + return ret; +} + +static int __maybe_unused alps_post_resume(struct hid_device *hdev) +{ + return alps_post_reset(hdev); +} + +static int u1_init(struct hid_device *hdev, struct alps_dev *pri_data) +{ + int ret; + 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, + &dev_ctrl, 0, true); + if (ret < 0) { + dev_err(&hdev->dev, "failed U1_DEV_CTRL_1 (%d)\n", ret); + goto exit; + } + + dev_ctrl &= ~U1_DISABLE_DEV; + dev_ctrl |= U1_TP_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 to change TP mode (%d)\n", ret); + goto exit; + } + + ret = u1_read_write_register(hdev, ADDRESS_U1_NUM_SENS_X, + &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, + &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, + &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, + &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, + &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, + &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, + &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; + } + + 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; + } + + 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_sp_open(struct input_dev *dev) +{ + struct hid_device *hid = input_get_drvdata(dev); + + return hid_hw_open(hid); +} + +static void alps_sp_close(struct input_dev *dev) +{ + struct hid_device *hid = input_get_drvdata(dev); + + hid_hw_close(hid); +} + +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); + switch (data->dev_type) { + case T4: + ret = T4_init(hdev, data); + break; + case U1: + ret = u1_init(hdev, data); + break; + default: + break; + } + + if (ret) + goto exit; + + __set_bit(EV_ABS, input->evbit); + 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 (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); + } + + input_set_abs_params(input, ABS_MT_PRESSURE, 0, 64, 0, 0); + + input_mt_init_slots(input, data->max_fingers, INPUT_MT_POINTER); + + __set_bit(EV_KEY, input->evbit); + + if (data->btn_cnt == 1) + __set_bit(INPUT_PROP_BUTTONPAD, input->propbit); + + for (i = 0; i < data->btn_cnt; i++) + __set_bit(BTN_LEFT + i, input->keybit); + + /* Stick device initialization */ + if (data->has_sp) { + input2 = input_allocate_device(); + if (!input2) { + ret = -ENOMEM; + goto exit; + } + + data->input2 = input2; + input2->phys = input->phys; + input2->name = "DualPoint Stick"; + input2->id.bustype = BUS_I2C; + input2->id.vendor = input->id.vendor; + input2->id.product = input->id.product; + input2->id.version = input->id.version; + input2->dev.parent = input->dev.parent; + + input_set_drvdata(input2, hdev); + input2->open = alps_sp_open; + input2->close = alps_sp_close; + + __set_bit(EV_KEY, input2->evbit); + 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); + __set_bit(REL_X, input2->relbit); + __set_bit(REL_Y, input2->relbit); + __set_bit(INPUT_PROP_POINTER, input2->propbit); + __set_bit(INPUT_PROP_POINTING_STICK, input2->propbit); + + if (input_register_device(data->input2)) { + input_free_device(input2); + ret = -ENOENT; + goto exit; + } + } + +exit: + hid_device_io_stop(hdev); + hid_hw_close(hdev); + return ret; +} + +static int alps_input_mapping(struct hid_device *hdev, + struct hid_input *hi, struct hid_field *field, + struct hid_usage *usage, unsigned long **bit, int *max) +{ + return -1; +} + +static int alps_probe(struct hid_device *hdev, const struct hid_device_id *id) +{ + struct alps_dev *data = NULL; + int ret; + data = devm_kzalloc(&hdev->dev, sizeof(struct alps_dev), GFP_KERNEL); + if (!data) + return -ENOMEM; + + data->hdev = hdev; + hid_set_drvdata(hdev, data); + + hdev->quirks |= HID_QUIRK_NO_INIT_REPORTS; + + ret = hid_parse(hdev); + if (ret) { + hid_err(hdev, "parse failed\n"); + return ret; + } + + switch (hdev->product) { + case HID_DEVICE_ID_ALPS_T4_BTNLESS: + data->dev_type = T4; + break; + case HID_DEVICE_ID_ALPS_U1_DUAL: + case HID_DEVICE_ID_ALPS_U1: + case HID_DEVICE_ID_ALPS_U1_UNICORN_LEGACY: + 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"); + return ret; + } + + return 0; +} + +static void alps_remove(struct hid_device *hdev) +{ + hid_hw_stop(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_U1) }, + { HID_DEVICE(HID_BUS_ANY, HID_GROUP_ANY, + USB_VENDOR_ID_ALPS_JP, HID_DEVICE_ID_ALPS_U1_UNICORN_LEGACY) }, + { 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); + +static struct hid_driver alps_driver = { + .name = "hid-alps", + .id_table = alps_id, + .probe = alps_probe, + .remove = alps_remove, + .raw_event = alps_raw_event, + .input_mapping = alps_input_mapping, + .input_configured = alps_input_configured, +#ifdef CONFIG_PM + .resume = alps_post_resume, + .reset_resume = alps_post_reset, +#endif +}; + +module_hid_driver(alps_driver); + +MODULE_AUTHOR("Masaki Ota "); +MODULE_DESCRIPTION("ALPS HID driver"); +MODULE_LICENSE("GPL"); -- cgit v1.2.3