From patchwork Thu Jun 16 09:45:57 2016 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: Masaki Ota <012nexus@gmail.com> X-Patchwork-Id: 9180287 Return-Path: Received: from mail.wl.linuxfoundation.org (pdx-wl-mail.web.codeaurora.org [172.30.200.125]) by pdx-korg-patchwork.web.codeaurora.org (Postfix) with ESMTP id 301C06088F for ; Thu, 16 Jun 2016 09:46:17 +0000 (UTC) Received: from mail.wl.linuxfoundation.org (localhost [127.0.0.1]) by mail.wl.linuxfoundation.org (Postfix) with ESMTP id 1C79C27D45 for ; Thu, 16 Jun 2016 09:46:17 +0000 (UTC) Received: by mail.wl.linuxfoundation.org (Postfix, from userid 486) id 10F9F28309; Thu, 16 Jun 2016 09:46:17 +0000 (UTC) X-Spam-Checker-Version: SpamAssassin 3.3.1 (2010-03-16) on pdx-wl-mail.web.codeaurora.org X-Spam-Level: X-Spam-Status: No, score=-6.0 required=2.0 tests=BAYES_00, DKIM_ADSP_CUSTOM_MED, DKIM_SIGNED,FREEMAIL_FROM,FROM_STARTS_WITH_NUMS,RCVD_IN_DNSWL_HI, T_DKIM_INVALID autolearn=ham version=3.3.1 Received: from vger.kernel.org (vger.kernel.org [209.132.180.67]) by mail.wl.linuxfoundation.org (Postfix) with ESMTP id 859FD27D45 for ; Thu, 16 Jun 2016 09:46:15 +0000 (UTC) Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1752587AbcFPJqO (ORCPT ); Thu, 16 Jun 2016 05:46:14 -0400 Received: from mail-pa0-f68.google.com ([209.85.220.68]:36664 "EHLO mail-pa0-f68.google.com" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1752231AbcFPJqM (ORCPT ); Thu, 16 Jun 2016 05:46:12 -0400 Received: by mail-pa0-f68.google.com with SMTP id fg1so3415385pad.3 for ; Thu, 16 Jun 2016 02:46:12 -0700 (PDT) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=gmail.com; s=20120113; h=from:to:cc:subject:date:message-id; bh=o7kCb02KExlDQmCzNES0AZOeYmxiLHISoZ4l1qBTUtE=; b=Qe9kvgio0EP7pRQRA6INaIBgCR9oxc8mccOcbb/dcoWyooQf9C1+iEnzS7/UWdHzYa IBhh8D5z4p8JaEKJ/pQlRl/+svJO2AQvN/y2W6ReVuwa8HLM2Uf7L9yBb3CREjMIyfDR qFZkQIupf47iOSZNRcg5Ygd81LNgJwrNPP000CLpkrdScdzcs4Hp+IKAV8lhwlrSsmAw kgLoU/oGnnuaN5XN5P3/iiSpnqAAvUkT/2NZkrUTTjAfJPp1Fw+PcBuEDlIsgcUrlSWr XhkFwEWXCn1kU87fkOk6Uc4iqIpTWqUUlzOKJQoFJERubBB43EJOyvOHn2ZbJYVSF5C/ BziQ== X-Google-DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=1e100.net; s=20130820; h=x-gm-message-state:from:to:cc:subject:date:message-id; bh=o7kCb02KExlDQmCzNES0AZOeYmxiLHISoZ4l1qBTUtE=; b=ikGJo6HcTBxWoCV+JITLSiaE+IBjtrnlU/BrQZRaXywuKaO2YwTq2Qq2zwYI//Wvqm ME25sz2o/CPinZtrnSBx3Zjo0EUlDUUHG1xzoDPXbhlnD1kKP+KWkWGieoknmJhqydfm ZvnDovGb86HKhI+eksrIlpIlXq99v8cqSSgzFoY71NrviBikPKXw8wqHEu3uFuzbFxVb DG1L5p3gavPUhUhj3oRcbsmHrVElIm4Utv50vaNWcCDiPwoSTuIPcoR/oT6RAdJ/jY6D mb7a5kJzanZc9zn3uae8aPh1pe/8BH0/9Fgo783UqeFcq5xc7gxxNus93nAfviZGJaq8 5D1A== X-Gm-Message-State: ALyK8tLeLi/Gism4kDh4wf9PbsGDzSHf0nW42t4SsLUi6ozN+zCDL+fpSbpJipbw1G7+EQ== X-Received: by 10.66.183.168 with SMTP id en8mr4138963pac.64.1466070371265; Thu, 16 Jun 2016 02:46:11 -0700 (PDT) Received: from localhost (p4051-ipad208aobadori.miyagi.ocn.ne.jp. [123.216.43.51]) by smtp.gmail.com with ESMTPSA id uj5sm37380953pac.28.2016.06.16.02.46.09 (version=TLS1_2 cipher=ECDHE-RSA-AES128-GCM-SHA256 bits=128/128); Thu, 16 Jun 2016 02:46:10 -0700 (PDT) From: Masaki Ota <012nexus@gmail.com> X-Google-Original-From: Masaki Ota To: jikos@kernel.org Cc: benjamin.tissorires@redhat.com, peter.hutterer@who-t.net, hdegoede@redhat.com, dmitry.torokhov@gmail.com, linux-input@vger.kernel.org, masaki.ota@jp.alps.com, naoki.saito@jp.alps.com Subject: [PATCH] Alps I2C HID Touchpad-Stick support Date: Thu, 16 Jun 2016 18:45:57 +0900 Message-Id: <1466070357-5315-1-git-send-email-masaki.ota@jp.alps.com> X-Mailer: git-send-email 2.7.4 Sender: linux-input-owner@vger.kernel.org Precedence: bulk List-ID: X-Mailing-List: linux-input@vger.kernel.org X-Virus-Scanned: ClamAV using ClamSMTP From Masaki Ota - Add hid-alps.c for Support Alps I2C HID Touchpad and Stick device. - Add hid-alps.txt to check this device spec. - Add Alps-JP vendor ID to hid-idh.h for support this device. - To build this module, add Alps module definition to Makefile. Signed-off-by: Masaki Ota --- Documentation/hid/hid-alps.txt | 139 +++++++++++ drivers/hid/Kconfig | 8 + drivers/hid/Makefile | 1 + drivers/hid/hid-alps.c | 525 +++++++++++++++++++++++++++++++++++++++++ drivers/hid/hid-ids.h | 2 + 5 files changed, 675 insertions(+) create mode 100644 Documentation/hid/hid-alps.txt create mode 100644 drivers/hid/hid-alps.c diff --git a/Documentation/hid/hid-alps.txt b/Documentation/hid/hid-alps.txt new file mode 100644 index 0000000..6b02a24 --- /dev/null +++ b/Documentation/hid/hid-alps.txt @@ -0,0 +1,139 @@ +ALPS HID Touchpad Protocol +---------------------- + +Introduction +------------ +Currently ALPS HID driver supports U1 Touchpad device. + +U1 devuce basic information. +Vender ID 0x044E +Product ID 0x120B +Version ID 0x0121 + + +HID Descriptor +------------ +Byte Field Value Notes +0 wHIDDescLength 001E Length of HID Descriptor : 30 bytes +2 bcdVersion 0100 Compliant with Version 1.00 +4 wReportDescLength 00B2 Report Descriptor is 178 Bytes (0x00B2) +6 wReportDescRegister 0002 Identifier to read Report Descriptor +8 wInputRegister 0003 Identifier to read Input Report +10 wMaxInputLength 0053 Input Report is 80 Bytes + 2 +12 wOutputRegister 0000 Identifier to read Output Report +14 wMaxOutputLength 0000 No Output Reports +16 wCommandRegister 0005 Identifier for Command Register +18 wDataRegister 0006 Identifier for Data Register +20 wVendorID 044E Vendor ID 0x044E +22 wProductID 120B Product ID 0x120B +24 wVersionID 0121 Version 01.21 +26 RESERVED 0000 RESERVED + + +Report ID +------------ +ReportID-1 (Input Reports) (HIDUsage-Mouse) for TP&SP +ReportID-2 (Input Reports) (HIDUsage-keyboard) for TP +ReportID-3 (Input Reports) (Vendor Usage: Max 10 finger data) for TP +ReportID-4 (Input Reports) (Vendor Usage: ON bit data) for GP +ReportID-5 (Feature Reports) Feature Reports +ReportID-6 (Input Reports) (Vendor Usage: StickPointer data) for SP +ReportID-7 (Feature Reports) Flash update (Bootloader) + + +Data pattern +------------ +Case1 ReportID_1 TP/SP Relative/Relative +Case2 ReportID_3 TP Absolute + ReportID_6 SP Absolute + + +Command Read/Write +------------------ +To read/write to RAM, need to send a commands to the device. +The command format is as below. + +DataByte(SET_REPORT) +Byte1 Command Byte +Byte2 Address - Byte 0 (LSB) +Byte3 Address - Byte 1 +Byte4 Address - Byte 2 +Byte5 Address - Byte 3 (MSB) +Byte6 Value Byte +Byte7 Checksum + +Command Byte is read=0xD1/write=0xD2 . +Address is read/write RAM address. +Value Byte is writing data when you send the write commands. +When you read RAM, there is no meaning. + +DataByte(GET_REPORT) +Byte1 Response Byte +Byte2 Address - Byte 0 (LSB) +Byte3 Address - Byte 1 +Byte4 Address - Byte 2 +Byte5 Address - Byte 3 (MSB) +Byte6 Value Byte +Byte7 Checksum + +Read value is stored in Value Byte. + + +Packet Format +Touchpad data byte +------------------ + b7 b6 b5 b4 b3 b2 b1 b0 +1 0 0 SW6 SW5 SW4 SW3 SW2 SW1 +2 0 0 0 Fcv Fn3 Fn2 Fn1 Fn0 +3 Xa0_7 Xa0_6 Xa0_5 Xa0_4 Xa0_3 Xa0_2 Xa0_1 Xa0_0 +4 Xa0_15 Xa0_14 Xa0_13 Xa0_12 Xa0_11 Xa0_10 Xa0_9 Xa0_8 +5 Ya0_7 Ya0_6 Ya0_5 Ya0_4 Ya0_3 Ya0_2 Ya0_1 Ya0_0 +6 Ya0_15 Ya0_14 Ya0_13 Ya0_12 Ya0_11 Ya0_10 Ya0_9 Ya0_8 +7 LFB0 Zs0_6 Zs0_5 Zs0_4 Zs0_3 Zs0_2 Zs0_1 Zs0_0 + +8 Xa1_7 Xa1_6 Xa1_5 Xa1_4 Xa1_3 Xa1_2 Xa1_1 Xa1_0 +9 Xa1_15 Xa1_14 Xa1_13 Xa1_12 Xa1_11 Xa1_10 Xa1_9 Xa1_8 +10 Ya1_7 Ya1_6 Ya1_5 Ya1_4 Ya1_3 Ya1_2 Ya1_1 Ya1_0 +11 Ya1_15 Ya1_14 Ya1_13 Ya1_12 Ya1_11 Ya1_10 Ya1_9 Ya1_8 +12 LFB1 Zs1_6 Zs1_5 Zs1_4 Zs1_3 Zs1_2 Zs1_1 Zs1_0 + +13 Xa2_7 Xa2_6 Xa2_5 Xa2_4 Xa2_3 Xa2_2 Xa2_1 Xa2_0 +14 Xa2_15 Xa2_14 Xa2_13 Xa2_12 Xa2_11 Xa2_10 Xa2_9 Xa2_8 +15 Ya2_7 Ya2_6 Ya2_5 Ya2_4 Ya2_3 Ya2_2 Ya2_1 Ya2_0 +16 Ya2_15 Ya2_14 Ya2_13 Ya2_12 Ya2_11 Ya2_10 Ya2_9 Ya2_8 +17 LFB2 Zs2_6 Zs2_5 Zs2_4 Zs2_3 Zs2_2 Zs2_1 Zs2_0 + +18 Xa3_7 Xa3_6 Xa3_5 Xa3_4 Xa3_3 Xa3_2 Xa3_1 Xa3_0 +19 Xa3_15 Xa3_14 Xa3_13 Xa3_12 Xa3_11 Xa3_10 Xa3_9 Xa3_8 +20 Ya3_7 Ya3_6 Ya3_5 Ya3_4 Ya3_3 Ya3_2 Ya3_1 Ya3_0 +21 Ya3_15 Ya3_14 Ya3_13 Ya3_12 Ya3_11 Ya3_10 Ya3_9 Ya3_8 +22 LFB3 Zs3_6 Zs3_5 Zs3_4 Zs3_3 Zs3_2 Zs3_1 Zs3_0 + +23 Xa4_7 Xa4_6 Xa4_5 Xa4_4 Xa4_3 Xa4_2 Xa4_1 Xa4_0 +24 Xa4_15 Xa4_14 Xa4_13 Xa4_12 Xa4_11 Xa4_10 Xa4_9 Xa4_8 +25 Ya4_7 Ya4_6 Ya4_5 Ya4_4 Ya4_3 Ya4_2 Ya4_1 Ya4_0 +26 Ya4_15 Ya4_14 Ya4_13 Ya4_12 Ya4_11 Ya4_10 Ya4_9 Ya4_8 +27 LFB4 Zs4_6 Zs4_5 Zs4_4 Zs4_3 Zs4_2 Zs4_1 Zs4_0 + + +SW1-SW6: SW ON/OFF status +Xan_15-0(16bit):X Absolute data of the "n"th finger +Yan_15-0(16bit):Y Absolute data of the "n"th finger +Zsn_6-0(7bit): Operation area of the "n"th finger + + +StickPointer data byte +------------------ + b7 b6 b5 b4 b3 b2 b1 b0 +Byte1 1 1 1 0 1 SW3 SW2 SW1 +Byte2 X7 X6 X5 X4 X3 X2 X1 X0 +Byte3 X15 X14 X13 X12 X11 X10 X9 X8 +Byte4 Y7 Y6 Y5 Y4 Y3 Y2 Y1 Y0 +Byte5 Y15 Y14 Y13 Y12 Y11 Y10 Y9 Y8 +Byte6 Z7 Z6 Z5 Z4 Z3 Z2 Z1 Z0 +Byte7 T&P Z14 Z13 Z12 Z11 Z10 Z9 Z8 + +SW1-SW3: SW ON/OFF status +Xn_15-0(16bit):X Absolute data +Yn_15-0(16bit):Y Absolute data +Zn_14-0(15bit):Z diff --git a/drivers/hid/Kconfig b/drivers/hid/Kconfig index 513a16c..902f302 100644 --- a/drivers/hid/Kconfig +++ b/drivers/hid/Kconfig @@ -920,6 +920,14 @@ config HID_SENSOR_CUSTOM_SENSOR standard sensors. Select this config option for custom/generic sensor support. +config HID_ALPS + tristate "Alps HID device support" + depends on HID + ---help--- + Support for Alps I2C HID touchpads and StickPointer. + Say Y here if you have a Alps touchpads over i2c-hid or usbhid + and want support for its special functionalities. + endmenu endif # HID diff --git a/drivers/hid/Makefile b/drivers/hid/Makefile index 00011fe..31e493a 100644 --- a/drivers/hid/Makefile +++ b/drivers/hid/Makefile @@ -21,6 +21,7 @@ hid-wiimote-y := hid-wiimote-core.o hid-wiimote-modules.o hid-wiimote-$(CONFIG_DEBUG_FS) += hid-wiimote-debug.o obj-$(CONFIG_HID_A4TECH) += hid-a4tech.o +obj-$(CONFIG_HID_ALPS) += hid-alps.o obj-$(CONFIG_HID_ACRUX) += hid-axff.o obj-$(CONFIG_HID_APPLE) += hid-apple.o obj-$(CONFIG_HID_APPLEIR) += hid-appleir.o diff --git a/drivers/hid/hid-alps.c b/drivers/hid/hid-alps.c new file mode 100644 index 0000000..b79c318 --- /dev/null +++ b/drivers/hid/hid-alps.c @@ -0,0 +1,525 @@ +/* + * Copyright (c) 2016 Masaki Ota + * + * This program is free software; you can redistribute it and/or modify it + * under the terms of the GNU General Public License as published by the Free + * Software Foundation; either version 2 of the License, or (at your option) + * any later version. + */ + +#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_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 MAX_TOUCHES 5 + +/** + * struct u1_data + * + * @input: pointer to the kernel input device + * @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 + * @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 + * @btn_cnt: number of buttons + * @sp_btn_cnt: number of stick buttons + */ +struct u1_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; + u8 sp_btn_info; + u32 x_active_len_mm; + u32 y_active_len_mm; + u32 x_max; + u32 y_max; + u32 btn_cnt; + u32 sp_btn_cnt; +}; + +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) +{ + int ret, i; + u8 check_sum; + u8 *input; + u8 *readbuf; + + input = kzalloc(sizeof(u8)*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; + 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, + sizeof(input), 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) { + ret = hid_hw_raw_request(hdev, U1_FEATURE_REPORT_ID, readbuf, + sizeof(readbuf), HID_FEATURE_REPORT, + HID_REQ_GET_REPORT); + + if (ret < 0) { + dev_err(&hdev->dev, "failed read register (%d)\n", ret); + goto exit; + } + + *read_val = readbuf[6]; + } + + kfree(input); + kfree(readbuf); + return 0; + +exit: + kfree(input); + kfree(readbuf); + return ret; +} + +static int alps_raw_event(struct hid_device *hdev, + struct hid_report *report, u8 *data, int size) +{ + int x[MAX_TOUCHES], y[MAX_TOUCHES], z[MAX_TOUCHES]; + int i, left, right, middle; + short sp_x, sp_y, sp_z; + struct u1_dev *hdata = hid_get_drvdata(hdev); + + 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++) { + x[i] = (data[3+(5*i)] | (data[4+(5*i)] << 8)); + y[i] = (data[5+(5*i)] | (data[6+(5*i)] << 8)); + z[i] = data[7+(5*i)] & 0x7F; + left = data[1] & 0x1; + right = (data[1] & 0x2) >> 1; + middle = (data[1] & 0x4) >> 2; + + input_mt_slot(hdata->input, i); + + if (z[i] != 0) { + input_mt_report_slot_state(hdata->input, + MT_TOOL_FINGER, 1); + } else { + input_mt_report_slot_state(hdata->input, + MT_TOOL_FINGER, 0); + break; + } + + input_event(hdata->input, EV_ABS, + ABS_MT_POSITION_X, x[i]); + input_event(hdata->input, EV_ABS, + ABS_MT_POSITION_Y, y[i]); + input_event(hdata->input, EV_ABS, + ABS_MT_PRESSURE, z[i]); + } + + input_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); + + return 1; + + case U1_SP_ABSOLUTE_REPORT_ID: + sp_x = (data[2] | (data[3] << 8)); + sp_y = (data[4] | (data[5] << 8)); + sp_z = (data[6] | data[7]) & 0x7FFF; + left = data[1] & 0x1; + right = (data[1] & 0x2) >> 1; + middle = (data[1] & 0x4) >> 2; + + sp_x = 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(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_sync(priv->input2); + + return 1; + } + + return 0; +} + +#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, false); +} + +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, false); +} +#endif /* CONFIG_PM */ + +static int alps_input_configured(struct hid_device *hdev, struct hid_input *hi) +{ + 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; + + /* 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"); + ret = hid_hw_open(hdev); + if (ret) + return ret; + + /* Allow incoming hid reports */ + hid_device_io_start(hdev); + + /* Device initialization */ + ret = u1_read_write_register(hdev, ADDRESS_U1_DEV_CTRL_1, + &devInfo.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; + ret = u1_read_write_register(hdev, ADDRESS_U1_DEV_CTRL_1, + NULL, devInfo.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); + 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); + 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); + 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); + 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); + if (ret < 0) { + dev_err(&hdev->dev, "failed U1_RESO_DWN_ABS (%d)\n", ret); + goto exit; + } + + ret = u1_read_write_register(hdev, ADDRESS_U1_PAD_BTN, + &devInfo.btn_info, 0, true); + if (ret < 0) { + dev_err(&hdev->dev, "failed U1_PAD_BTN (%d)\n", ret); + goto exit; + } + + /* Check StickPointer device */ + ret = u1_read_write_register(hdev, ADDRESS_U1_DEVICE_TYP, + &devInfo.dev_type, 0, true); + if (ret < 0) { + dev_err(&hdev->dev, "failed U1_DEVICE_TYP (%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; + + devInfo.x_max = + (devInfo.resolution << 2) * (devInfo.sen_line_num_x - 1); + devInfo.y_max = + (devInfo.resolution << 2) * (devInfo.sen_line_num_y - 1); + + __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); + + 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; + + 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, MAX_TOUCHES, 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; + __set_bit(INPUT_PROP_BUTTONPAD, input->propbit); + } + + for (i = 0; i < devInfo.btn_cnt; i++) + __set_bit(BTN_LEFT + i, input->keybit); + + + /* 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; + + 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; + } + + 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; + + __set_bit(EV_KEY, input2->evbit); + devInfo.sp_btn_cnt = (devInfo.sp_btn_info & 0x0F); + for (i = 0; i < devInfo.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(priv->input2)) { + input_free_device(input2); + 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 u1_dev *data = NULL; + int ret; + + data = devm_kzalloc(&hdev->dev, sizeof(struct u1_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; + } + + 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); + 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) }, + { } +}; +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"); diff --git a/drivers/hid/hid-ids.h b/drivers/hid/hid-ids.h index b6ff6e7..cac68c7 100644 --- a/drivers/hid/hid-ids.h +++ b/drivers/hid/hid-ids.h @@ -67,6 +67,8 @@ #define USB_VENDOR_ID_ALPS 0x0433 #define USB_DEVICE_ID_IBM_GAMEPAD 0x1101 +#define USB_VENDOR_ID_ALPS_JP 0x044E + #define USB_VENDOR_ID_ANTON 0x1130 #define USB_DEVICE_ID_ANTON_TOUCH_PAD 0x3101