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857 lines
20 KiB
857 lines
20 KiB
// SPDX-License-Identifier: GPL-2.0-or-later |
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/* |
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* Copyright (c) 2016 Masaki Ota <[email protected]> |
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*/ |
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|
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#include <linux/kernel.h> |
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#include <linux/hid.h> |
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#include <linux/input.h> |
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#include <linux/input/mt.h> |
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#include <linux/module.h> |
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#include <asm/unaligned.h> |
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#include "hid-ids.h" |
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|
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/* ALPS Device Product ID */ |
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#define HID_PRODUCT_ID_T3_BTNLESS 0xD0C0 |
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#define HID_PRODUCT_ID_COSMO 0x1202 |
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#define HID_PRODUCT_ID_U1_PTP_1 0x1207 |
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#define HID_PRODUCT_ID_U1 0x1209 |
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#define HID_PRODUCT_ID_U1_PTP_2 0x120A |
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#define HID_PRODUCT_ID_U1_DUAL 0x120B |
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#define HID_PRODUCT_ID_T4_BTNLESS 0x120C |
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#define DEV_SINGLEPOINT 0x01 |
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#define DEV_DUALPOINT 0x02 |
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#define U1_MOUSE_REPORT_ID 0x01 /* Mouse data ReportID */ |
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#define U1_ABSOLUTE_REPORT_ID 0x03 /* Absolute data ReportID */ |
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#define U1_ABSOLUTE_REPORT_ID_SECD 0x02 /* FW-PTP Absolute data ReportID */ |
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#define U1_FEATURE_REPORT_ID 0x05 /* Feature ReportID */ |
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#define U1_SP_ABSOLUTE_REPORT_ID 0x06 /* Feature ReportID */ |
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#define U1_FEATURE_REPORT_LEN 0x08 /* Feature Report Length */ |
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#define U1_FEATURE_REPORT_LEN_ALL 0x0A |
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#define U1_CMD_REGISTER_READ 0xD1 |
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#define U1_CMD_REGISTER_WRITE 0xD2 |
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#define U1_DEVTYPE_SP_SUPPORT 0x10 /* SP Support */ |
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#define U1_DISABLE_DEV 0x01 |
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#define U1_TP_ABS_MODE 0x02 |
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#define U1_SP_ABS_MODE 0x80 |
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#define ADDRESS_U1_DEV_CTRL_1 0x00800040 |
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#define ADDRESS_U1_DEVICE_TYP 0x00800043 |
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#define ADDRESS_U1_NUM_SENS_X 0x00800047 |
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#define ADDRESS_U1_NUM_SENS_Y 0x00800048 |
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#define ADDRESS_U1_PITCH_SENS_X 0x00800049 |
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#define ADDRESS_U1_PITCH_SENS_Y 0x0080004A |
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#define ADDRESS_U1_RESO_DWN_ABS 0x0080004E |
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#define ADDRESS_U1_PAD_BTN 0x00800052 |
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#define ADDRESS_U1_SP_BTN 0x0080009F |
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#define T4_INPUT_REPORT_LEN sizeof(struct t4_input_report) |
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#define T4_FEATURE_REPORT_LEN T4_INPUT_REPORT_LEN |
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#define T4_FEATURE_REPORT_ID 7 |
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#define T4_CMD_REGISTER_READ 0x08 |
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#define T4_CMD_REGISTER_WRITE 0x07 |
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#define T4_ADDRESS_BASE 0xC2C0 |
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#define PRM_SYS_CONFIG_1 (T4_ADDRESS_BASE + 0x0002) |
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#define T4_PRM_FEED_CONFIG_1 (T4_ADDRESS_BASE + 0x0004) |
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#define T4_PRM_FEED_CONFIG_4 (T4_ADDRESS_BASE + 0x001A) |
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#define T4_PRM_ID_CONFIG_3 (T4_ADDRESS_BASE + 0x00B0) |
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#define T4_FEEDCFG4_ADVANCED_ABS_ENABLE 0x01 |
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#define T4_I2C_ABS 0x78 |
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#define T4_COUNT_PER_ELECTRODE 256 |
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#define MAX_TOUCHES 5 |
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enum dev_num { |
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U1, |
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T4, |
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UNKNOWN, |
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}; |
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/** |
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* struct alps_dev |
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* |
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* @input: pointer to the kernel input device |
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* @input2: pointer to the kernel input2 device |
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* @hdev: pointer to the struct hid_device |
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* |
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* @dev_type: device type |
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* @max_fingers: total number of fingers |
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* @has_sp: boolean of sp existense |
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* @sp_btn_info: button information |
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* @x_active_len_mm: active area length of X (mm) |
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* @y_active_len_mm: active area length of Y (mm) |
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* @x_max: maximum x coordinate value |
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* @y_max: maximum y coordinate value |
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* @x_min: minimum x coordinate value |
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* @y_min: minimum y coordinate value |
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* @btn_cnt: number of buttons |
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* @sp_btn_cnt: number of stick buttons |
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*/ |
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struct alps_dev { |
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struct input_dev *input; |
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struct input_dev *input2; |
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struct hid_device *hdev; |
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enum dev_num dev_type; |
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u8 max_fingers; |
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u8 has_sp; |
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u8 sp_btn_info; |
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u32 x_active_len_mm; |
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u32 y_active_len_mm; |
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u32 x_max; |
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u32 y_max; |
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u32 x_min; |
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u32 y_min; |
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u32 btn_cnt; |
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u32 sp_btn_cnt; |
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}; |
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struct t4_contact_data { |
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u8 palm; |
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u8 x_lo; |
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u8 x_hi; |
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u8 y_lo; |
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u8 y_hi; |
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}; |
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struct t4_input_report { |
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u8 reportID; |
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u8 numContacts; |
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struct t4_contact_data contact[5]; |
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u8 button; |
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u8 track[5]; |
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u8 zx[5], zy[5]; |
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u8 palmTime[5]; |
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u8 kilroy; |
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u16 timeStamp; |
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}; |
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static u16 t4_calc_check_sum(u8 *buffer, |
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unsigned long offset, unsigned long length) |
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{ |
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u16 sum1 = 0xFF, sum2 = 0xFF; |
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unsigned long i = 0; |
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if (offset + length >= 50) |
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return 0; |
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while (length > 0) { |
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u32 tlen = length > 20 ? 20 : length; |
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length -= tlen; |
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do { |
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sum1 += buffer[offset + i]; |
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sum2 += sum1; |
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i++; |
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} while (--tlen > 0); |
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sum1 = (sum1 & 0xFF) + (sum1 >> 8); |
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sum2 = (sum2 & 0xFF) + (sum2 >> 8); |
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} |
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sum1 = (sum1 & 0xFF) + (sum1 >> 8); |
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sum2 = (sum2 & 0xFF) + (sum2 >> 8); |
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return(sum2 << 8 | sum1); |
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} |
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static int t4_read_write_register(struct hid_device *hdev, u32 address, |
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u8 *read_val, u8 write_val, bool read_flag) |
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{ |
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int ret; |
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u16 check_sum; |
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u8 *input; |
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u8 *readbuf = NULL; |
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input = kzalloc(T4_FEATURE_REPORT_LEN, GFP_KERNEL); |
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if (!input) |
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return -ENOMEM; |
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input[0] = T4_FEATURE_REPORT_ID; |
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if (read_flag) { |
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input[1] = T4_CMD_REGISTER_READ; |
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input[8] = 0x00; |
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} else { |
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input[1] = T4_CMD_REGISTER_WRITE; |
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input[8] = write_val; |
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} |
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put_unaligned_le32(address, input + 2); |
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input[6] = 1; |
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input[7] = 0; |
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/* Calculate the checksum */ |
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check_sum = t4_calc_check_sum(input, 1, 8); |
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input[9] = (u8)check_sum; |
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input[10] = (u8)(check_sum >> 8); |
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input[11] = 0; |
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ret = hid_hw_raw_request(hdev, T4_FEATURE_REPORT_ID, input, |
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T4_FEATURE_REPORT_LEN, |
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HID_FEATURE_REPORT, HID_REQ_SET_REPORT); |
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if (ret < 0) { |
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dev_err(&hdev->dev, "failed to read command (%d)\n", ret); |
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goto exit; |
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} |
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if (read_flag) { |
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readbuf = kzalloc(T4_FEATURE_REPORT_LEN, GFP_KERNEL); |
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if (!readbuf) { |
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ret = -ENOMEM; |
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goto exit; |
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} |
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ret = hid_hw_raw_request(hdev, T4_FEATURE_REPORT_ID, readbuf, |
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T4_FEATURE_REPORT_LEN, |
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HID_FEATURE_REPORT, HID_REQ_GET_REPORT); |
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if (ret < 0) { |
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dev_err(&hdev->dev, "failed read register (%d)\n", ret); |
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goto exit_readbuf; |
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} |
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ret = -EINVAL; |
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if (*(u32 *)&readbuf[6] != address) { |
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dev_err(&hdev->dev, "read register address error (%x,%x)\n", |
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*(u32 *)&readbuf[6], address); |
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goto exit_readbuf; |
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} |
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if (*(u16 *)&readbuf[10] != 1) { |
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dev_err(&hdev->dev, "read register size error (%x)\n", |
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*(u16 *)&readbuf[10]); |
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goto exit_readbuf; |
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} |
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check_sum = t4_calc_check_sum(readbuf, 6, 7); |
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if (*(u16 *)&readbuf[13] != check_sum) { |
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dev_err(&hdev->dev, "read register checksum error (%x,%x)\n", |
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*(u16 *)&readbuf[13], check_sum); |
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goto exit_readbuf; |
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} |
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*read_val = readbuf[12]; |
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} |
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ret = 0; |
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exit_readbuf: |
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kfree(readbuf); |
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exit: |
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kfree(input); |
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return ret; |
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} |
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static int u1_read_write_register(struct hid_device *hdev, u32 address, |
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u8 *read_val, u8 write_val, bool read_flag) |
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{ |
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int ret, i; |
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u8 check_sum; |
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u8 *input; |
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u8 *readbuf; |
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input = kzalloc(U1_FEATURE_REPORT_LEN, GFP_KERNEL); |
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if (!input) |
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return -ENOMEM; |
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input[0] = U1_FEATURE_REPORT_ID; |
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if (read_flag) { |
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input[1] = U1_CMD_REGISTER_READ; |
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input[6] = 0x00; |
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} else { |
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input[1] = U1_CMD_REGISTER_WRITE; |
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input[6] = write_val; |
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} |
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put_unaligned_le32(address, input + 2); |
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/* Calculate the checksum */ |
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check_sum = U1_FEATURE_REPORT_LEN_ALL; |
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for (i = 0; i < U1_FEATURE_REPORT_LEN - 1; i++) |
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check_sum += input[i]; |
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input[7] = check_sum; |
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ret = hid_hw_raw_request(hdev, U1_FEATURE_REPORT_ID, input, |
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U1_FEATURE_REPORT_LEN, |
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HID_FEATURE_REPORT, HID_REQ_SET_REPORT); |
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if (ret < 0) { |
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dev_err(&hdev->dev, "failed to read command (%d)\n", ret); |
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goto exit; |
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} |
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if (read_flag) { |
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readbuf = kzalloc(U1_FEATURE_REPORT_LEN, GFP_KERNEL); |
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if (!readbuf) { |
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ret = -ENOMEM; |
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goto exit; |
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} |
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ret = hid_hw_raw_request(hdev, U1_FEATURE_REPORT_ID, readbuf, |
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U1_FEATURE_REPORT_LEN, |
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HID_FEATURE_REPORT, HID_REQ_GET_REPORT); |
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if (ret < 0) { |
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dev_err(&hdev->dev, "failed read register (%d)\n", ret); |
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kfree(readbuf); |
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goto exit; |
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} |
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*read_val = readbuf[6]; |
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kfree(readbuf); |
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} |
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ret = 0; |
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exit: |
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kfree(input); |
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return ret; |
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} |
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static int t4_raw_event(struct alps_dev *hdata, u8 *data, int size) |
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{ |
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unsigned int x, y, z; |
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int i; |
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struct t4_input_report *p_report = (struct t4_input_report *)data; |
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if (!data) |
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return 0; |
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for (i = 0; i < hdata->max_fingers; i++) { |
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x = p_report->contact[i].x_hi << 8 | p_report->contact[i].x_lo; |
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y = p_report->contact[i].y_hi << 8 | p_report->contact[i].y_lo; |
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y = hdata->y_max - y + hdata->y_min; |
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z = (p_report->contact[i].palm < 0x80 && |
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p_report->contact[i].palm > 0) * 62; |
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if (x == 0xffff) { |
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x = 0; |
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y = 0; |
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z = 0; |
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} |
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input_mt_slot(hdata->input, i); |
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input_mt_report_slot_state(hdata->input, |
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MT_TOOL_FINGER, z != 0); |
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if (!z) |
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continue; |
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input_report_abs(hdata->input, ABS_MT_POSITION_X, x); |
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input_report_abs(hdata->input, ABS_MT_POSITION_Y, y); |
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input_report_abs(hdata->input, ABS_MT_PRESSURE, z); |
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} |
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input_mt_sync_frame(hdata->input); |
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input_report_key(hdata->input, BTN_LEFT, p_report->button); |
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input_sync(hdata->input); |
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return 1; |
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} |
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static int u1_raw_event(struct alps_dev *hdata, u8 *data, int size) |
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{ |
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unsigned int x, y, z; |
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int i; |
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short sp_x, sp_y; |
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if (!data) |
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return 0; |
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switch (data[0]) { |
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case U1_MOUSE_REPORT_ID: |
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break; |
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case U1_FEATURE_REPORT_ID: |
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break; |
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case U1_ABSOLUTE_REPORT_ID: |
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case U1_ABSOLUTE_REPORT_ID_SECD: |
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for (i = 0; i < hdata->max_fingers; i++) { |
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u8 *contact = &data[i * 5]; |
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x = get_unaligned_le16(contact + 3); |
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y = get_unaligned_le16(contact + 5); |
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z = contact[7] & 0x7F; |
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input_mt_slot(hdata->input, i); |
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if (z != 0) { |
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input_mt_report_slot_state(hdata->input, |
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MT_TOOL_FINGER, 1); |
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input_report_abs(hdata->input, |
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ABS_MT_POSITION_X, x); |
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input_report_abs(hdata->input, |
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ABS_MT_POSITION_Y, y); |
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input_report_abs(hdata->input, |
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ABS_MT_PRESSURE, z); |
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} else { |
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input_mt_report_slot_inactive(hdata->input); |
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} |
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} |
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input_mt_sync_frame(hdata->input); |
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input_report_key(hdata->input, BTN_LEFT, |
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data[1] & 0x1); |
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input_report_key(hdata->input, BTN_RIGHT, |
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(data[1] & 0x2)); |
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input_report_key(hdata->input, BTN_MIDDLE, |
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(data[1] & 0x4)); |
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input_sync(hdata->input); |
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return 1; |
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case U1_SP_ABSOLUTE_REPORT_ID: |
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sp_x = get_unaligned_le16(data+2); |
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sp_y = get_unaligned_le16(data+4); |
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sp_x = sp_x / 8; |
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sp_y = sp_y / 8; |
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input_report_rel(hdata->input2, REL_X, sp_x); |
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input_report_rel(hdata->input2, REL_Y, sp_y); |
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input_report_key(hdata->input2, BTN_LEFT, |
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data[1] & 0x1); |
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input_report_key(hdata->input2, BTN_RIGHT, |
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(data[1] & 0x2)); |
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input_report_key(hdata->input2, BTN_MIDDLE, |
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(data[1] & 0x4)); |
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input_sync(hdata->input2); |
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return 1; |
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} |
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return 0; |
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} |
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static int alps_raw_event(struct hid_device *hdev, |
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struct hid_report *report, u8 *data, int size) |
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{ |
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int ret = 0; |
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struct alps_dev *hdata = hid_get_drvdata(hdev); |
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switch (hdev->product) { |
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case HID_PRODUCT_ID_T4_BTNLESS: |
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ret = t4_raw_event(hdata, data, size); |
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break; |
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default: |
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ret = u1_raw_event(hdata, data, size); |
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break; |
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} |
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return ret; |
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} |
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static int __maybe_unused alps_post_reset(struct hid_device *hdev) |
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{ |
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int ret = -1; |
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struct alps_dev *data = hid_get_drvdata(hdev); |
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switch (data->dev_type) { |
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case T4: |
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ret = t4_read_write_register(hdev, T4_PRM_FEED_CONFIG_1, |
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NULL, T4_I2C_ABS, false); |
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if (ret < 0) { |
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dev_err(&hdev->dev, "failed T4_PRM_FEED_CONFIG_1 (%d)\n", |
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ret); |
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goto exit; |
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} |
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ret = t4_read_write_register(hdev, T4_PRM_FEED_CONFIG_4, |
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NULL, T4_FEEDCFG4_ADVANCED_ABS_ENABLE, false); |
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if (ret < 0) { |
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dev_err(&hdev->dev, "failed T4_PRM_FEED_CONFIG_4 (%d)\n", |
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ret); |
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goto exit; |
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} |
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break; |
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case U1: |
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ret = u1_read_write_register(hdev, |
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ADDRESS_U1_DEV_CTRL_1, NULL, |
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U1_TP_ABS_MODE | U1_SP_ABS_MODE, false); |
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if (ret < 0) { |
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dev_err(&hdev->dev, "failed to change TP mode (%d)\n", |
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ret); |
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goto exit; |
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} |
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break; |
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default: |
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break; |
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} |
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exit: |
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return ret; |
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} |
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static int __maybe_unused alps_post_resume(struct hid_device *hdev) |
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{ |
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return alps_post_reset(hdev); |
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} |
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static int u1_init(struct hid_device *hdev, struct alps_dev *pri_data) |
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{ |
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int ret; |
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u8 tmp, dev_ctrl, sen_line_num_x, sen_line_num_y; |
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u8 pitch_x, pitch_y, resolution; |
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/* Device initialization */ |
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ret = u1_read_write_register(hdev, ADDRESS_U1_DEV_CTRL_1, |
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&dev_ctrl, 0, true); |
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if (ret < 0) { |
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dev_err(&hdev->dev, "failed U1_DEV_CTRL_1 (%d)\n", ret); |
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goto exit; |
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} |
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dev_ctrl &= ~U1_DISABLE_DEV; |
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dev_ctrl |= U1_TP_ABS_MODE; |
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ret = u1_read_write_register(hdev, ADDRESS_U1_DEV_CTRL_1, |
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NULL, dev_ctrl, false); |
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if (ret < 0) { |
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dev_err(&hdev->dev, "failed to change TP mode (%d)\n", ret); |
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goto exit; |
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} |
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ret = u1_read_write_register(hdev, ADDRESS_U1_NUM_SENS_X, |
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&sen_line_num_x, 0, true); |
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if (ret < 0) { |
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dev_err(&hdev->dev, "failed U1_NUM_SENS_X (%d)\n", ret); |
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goto exit; |
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} |
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ret = u1_read_write_register(hdev, ADDRESS_U1_NUM_SENS_Y, |
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&sen_line_num_y, 0, true); |
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if (ret < 0) { |
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dev_err(&hdev->dev, "failed U1_NUM_SENS_Y (%d)\n", ret); |
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goto exit; |
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} |
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ret = u1_read_write_register(hdev, ADDRESS_U1_PITCH_SENS_X, |
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&pitch_x, 0, true); |
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if (ret < 0) { |
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dev_err(&hdev->dev, "failed U1_PITCH_SENS_X (%d)\n", ret); |
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goto exit; |
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} |
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ret = u1_read_write_register(hdev, ADDRESS_U1_PITCH_SENS_Y, |
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&pitch_y, 0, true); |
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if (ret < 0) { |
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dev_err(&hdev->dev, "failed U1_PITCH_SENS_Y (%d)\n", ret); |
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goto exit; |
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} |
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|
|
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_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 <[email protected]>"); |
|
MODULE_DESCRIPTION("ALPS HID driver"); |
|
MODULE_LICENSE("GPL");
|
|
|