From patchwork Thu Apr 27 07:40:32 2017 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: 9702455 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 9CABF602CC for ; Thu, 27 Apr 2017 07:41:04 +0000 (UTC) Received: from mail.wl.linuxfoundation.org (localhost [127.0.0.1]) by mail.wl.linuxfoundation.org (Postfix) with ESMTP id 9304628602 for ; Thu, 27 Apr 2017 07:41:04 +0000 (UTC) Received: by mail.wl.linuxfoundation.org (Postfix, from userid 486) id 862012860B; Thu, 27 Apr 2017 07:41:04 +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=-5.5 required=2.0 tests=BAYES_00, DKIM_ADSP_CUSTOM_MED, DKIM_SIGNED,FREEMAIL_FROM,FROM_STARTS_WITH_NUMS,RCVD_IN_DNSWL_HI, RCVD_IN_SORBS_SPAM,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 A0C8328602 for ; Thu, 27 Apr 2017 07:41:03 +0000 (UTC) Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S968096AbdD0Hk5 (ORCPT ); Thu, 27 Apr 2017 03:40:57 -0400 Received: from mail-pf0-f195.google.com ([209.85.192.195]:33639 "EHLO mail-pf0-f195.google.com" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S968081AbdD0Hkv (ORCPT ); Thu, 27 Apr 2017 03:40:51 -0400 Received: by mail-pf0-f195.google.com with SMTP id c198so7283515pfc.0; Thu, 27 Apr 2017 00:40:51 -0700 (PDT) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=gmail.com; s=20161025; h=from:to:cc:subject:date:message-id:in-reply-to:references; bh=GxbyExp+ggAFB+Fs9HZLpb7mmGSqYzxpaAKveY/fjJQ=; b=m7Q1/MZ8GSZwcfZzpVmY0ucQDo9o1ZO4xEoeijS4B3DlgBhVsmjKkLV8bbZoSB3DEk 1rmvygcZXliG/UIkjNLvcOAO+GVxEmUVUQ5atay6hpLqNR6YEE9zvh+GETC03egAZ9GW YrFGtFPWMOkeDyJR0B2fvFDLYBlsvmNsDQFk3LHmo0lnw+N43cipjA0Kbb1kifnOMuI9 egtdJxPYn5OUtcRPA6olQxk43EZaTW1wIu7kEj4cJBKWJwIzX1vzP3ju5z8i7X/G8cPy qYKyNirF5KZtg6L9FMscbrEF++TtFv6uvZqPksxM+/8vFt5npuL0ErVPJaVgQ7RaaPDI O3ag== X-Google-DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=1e100.net; s=20161025; h=x-gm-message-state:from:to:cc:subject:date:message-id:in-reply-to :references; bh=GxbyExp+ggAFB+Fs9HZLpb7mmGSqYzxpaAKveY/fjJQ=; b=KZWeVXfvPr7dyxPAXQytQ1JrRJQutkvmsXaOWwBZDe/N0XWWVTEt9oJDNRyGlKNO0v avdMzpPxIEQ9wXY6NRhg3Nbzfkq3JtEfLi8t9Rbgvt0JUX53cZdons/VItDxx0Smo1/d L8tlNDoSPOFxg0w9R+zjZepi16gzxFtFTzABn9NfbhY2oDoRf05nXcvJoZSobcJhc7xc lcEG7H9TI6qx31qyogwi3xUBrSoGoWTArqezLSFzwLfDdY7Lt8TRN0IiNrOVTefJq+g/ C8PZfUHRvJoiEmPslTo1WEREpgPAoHlseI0JMUy0yaGmyeF6eomk81VJjQy63BZsfRAL Jv3A== X-Gm-Message-State: AN3rC/69Cy6bWRiKLvT+axuluAeVK0mMNBowa+OVsSlbkGr63Bj8Jg+D WtCvR5/8K0nTMg== X-Received: by 10.98.160.24 with SMTP id r24mr4317093pfe.16.1493278850527; Thu, 27 Apr 2017 00:40:50 -0700 (PDT) Received: from localhost (p2239-ipad303aobadori.miyagi.ocn.ne.jp. [123.216.73.239]) by smtp.gmail.com with ESMTPSA id e22sm2667575pgn.11.2017.04.27.00.40.49 (version=TLS1_2 cipher=ECDHE-RSA-AES128-GCM-SHA256 bits=128/128); Thu, 27 Apr 2017 00:40:50 -0700 (PDT) From: Masaki Ota <012nexus@gmail.com> X-Google-Original-From: Masaki Ota To: benjamin.tissoires@redhat.com, jikos@kernel.org Cc: linux-input@vger.kernel.org, linux-kernel@vger.kernel.org, masaki.ota@jp.alps.com Subject: [PATCH 2/4] Support Alps HID I2C T4 Touchpad device Date: Thu, 27 Apr 2017 16:40:32 +0900 Message-Id: <1493278834-8523-3-git-send-email-masaki.ota@jp.alps.com> X-Mailer: git-send-email 2.7.4 In-Reply-To: <1493278834-8523-1-git-send-email-masaki.ota@jp.alps.com> References: <1493278834-8523-1-git-send-email-masaki.ota@jp.alps.com> 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 -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 --- drivers/hid/hid-alps.c | 345 ++++++++++++++++++++++++++++++++++++++++++++++--- drivers/hid/hid-core.c | 3 +- drivers/hid/hid-ids.h | 1 + 3 files changed, 327 insertions(+), 22 deletions(-) diff --git a/drivers/hid/hid-alps.c b/drivers/hid/hid-alps.c index 984e452..0a6c54f 100644 --- a/drivers/hid/hid-alps.c +++ b/drivers/hid/hid-alps.c @@ -52,10 +52,32 @@ #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 u1_dev + * struct u1_data * * @input: pointer to the kernel input device * @input2: pointer to the kernel input2 device @@ -74,11 +96,12 @@ * @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; + enum dev_num dev_type; u8 max_fingers; u8 has_sp; u8 sp_btn_info; @@ -92,6 +115,145 @@ struct u1_dev { 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; + + 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); + kfree(readbuf); + goto exit; + } + + if (*(u32 *)&readbuf[6] != address) { + dev_err(&hdev->dev, "read register address error (%x,%x)\n", + *(u32 *)&readbuf[6], address); + kfree(readbuf); + goto exit; + } + + if (*(u16 *)&readbuf[10] != 1) { + dev_err(&hdev->dev, "read register size error (%x)\n", + *(u16 *)&readbuf[10]); + kfree(readbuf); + goto exit; + } + + 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); + kfree(readbuf); + goto exit; + } + + *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) { @@ -159,21 +321,60 @@ 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; + 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; - 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); @@ -235,21 +436,52 @@ static int alps_raw_event(struct hid_device *hdev, return 0; } -#ifdef CONFIG_PM -static int alps_post_reset(struct hid_device *hdev) +static int alps_raw_event(struct hid_device *hdev, + struct hid_report *report, u8 *data, int size) { - return u1_read_write_register(hdev, ADDRESS_U1_DEV_CTRL_1, - NULL, U1_TP_ABS_MODE | U1_SP_ABS_MODE, false); + 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 alps_post_resume(struct hid_device *hdev) +static int __maybe_unused 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; } -#endif /* CONFIG_PM */ -static int u1_init(struct hid_device *hdev, struct u1_dev *pri_data) +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; @@ -361,9 +593,60 @@ static int u1_init(struct hid_device *hdev, struct u1_dev *pri_data) 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_input_configured(struct hid_device *hdev, struct hid_input *hi) { - struct u1_dev *data = hid_get_drvdata(hdev); + struct alps_dev *data = hid_get_drvdata(hdev); struct input_dev *input = hi->input, *input2; int ret; int res_x, res_y, i; @@ -377,8 +660,16 @@ static int alps_input_configured(struct hid_device *hdev, struct hid_input *hi) /* Allow incoming hid reports */ hid_device_io_start(hdev); - - ret = u1_init(hdev, data); + 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; @@ -458,10 +749,9 @@ 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; @@ -476,6 +766,17 @@ 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"); @@ -493,6 +794,8 @@ 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 ea36b55..9c3cb2e 100644 --- a/drivers/hid/hid-core.c +++ b/drivers/hid/hid-core.c @@ -1774,7 +1774,8 @@ 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 350accf..0b9726d 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