From patchwork Fri Mar 26 01:52:26 2021 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: Alistair X-Patchwork-Id: 409798 Return-Path: X-Spam-Checker-Version: SpamAssassin 3.4.0 (2014-02-07) on aws-us-west-2-korg-lkml-1.web.codeaurora.org X-Spam-Level: X-Spam-Status: No, score=-18.8 required=3.0 tests=BAYES_00,DKIM_SIGNED, DKIM_VALID, DKIM_VALID_AU, HEADER_FROM_DIFFERENT_DOMAINS, INCLUDES_CR_TRAILER, INCLUDES_PATCH, MAILING_LIST_MULTI, SPF_HELO_NONE, SPF_PASS, URIBL_BLOCKED, USER_AGENT_GIT autolearn=ham autolearn_force=no version=3.4.0 Received: from mail.kernel.org (mail.kernel.org [198.145.29.99]) by smtp.lore.kernel.org (Postfix) with ESMTP id DAAC2C433E8 for ; Fri, 26 Mar 2021 01:53:46 +0000 (UTC) Received: from vger.kernel.org (vger.kernel.org [23.128.96.18]) by mail.kernel.org (Postfix) with ESMTP id A16D2619A0 for ; Fri, 26 Mar 2021 01:53:46 +0000 (UTC) Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S230394AbhCZBxO (ORCPT ); Thu, 25 Mar 2021 21:53:14 -0400 Received: from out1-smtp.messagingengine.com ([66.111.4.25]:56307 "EHLO out1-smtp.messagingengine.com" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S230331AbhCZBwr (ORCPT ); Thu, 25 Mar 2021 21:52:47 -0400 Received: from compute1.internal (compute1.nyi.internal [10.202.2.41]) by mailout.nyi.internal (Postfix) with ESMTP id DA6675C0164; Thu, 25 Mar 2021 21:52:46 -0400 (EDT) Received: from mailfrontend2 ([10.202.2.163]) by compute1.internal (MEProxy); Thu, 25 Mar 2021 21:52:46 -0400 DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=alistair23.me; h=from:to:cc:subject:date:message-id:in-reply-to:references :mime-version:content-transfer-encoding; s=fm3; bh=Mr3SVxqvYtIDd YbZ+RVwG8ZSS/FVFdLi7hAy5Rzig2E=; b=G2wSsXraOQqLSMaTaMO22gcTlliR+ xdsg1c6dRAtmCASGeJw2RtIA6UkZg8SQCQa4q6Nu3G5KRrhEchq1mwaC91CZA/Pr vJlpNNvS7UaA1G/4T1xbB7jzCA0ofF/4XE/krGBzdHGLhasDj+S2ou0YuzwoDryp 5kD+Zbl3OqV7/MBVtXY2CxSrr/8NFMxf1rmNrFh04Db2axnB9muFsVDs4fjaZRl+ uO6BAyMGgdo2hztEzQfTClnoS86t/EPF+axydn/CIBg/Au+9VJ2460EyflgOxm3r XrCJvhvV+yAx7rZeyspTART/Jmc32oBr22Z3eTMMDkWj9KTGB5AY5tMHQ== DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d= messagingengine.com; h=cc:content-transfer-encoding:date:from :in-reply-to:message-id:mime-version:references:subject:to :x-me-proxy:x-me-proxy:x-me-sender:x-me-sender:x-sasl-enc; s= fm2; bh=Mr3SVxqvYtIDdYbZ+RVwG8ZSS/FVFdLi7hAy5Rzig2E=; b=HABi8Atz ZHmwyJX8hWJX63rsZOeCARIQcrHWS7USMZL09GhVjXUuIIHwjP/n8eqd/cEv7+Uu AarMwvhTHVwzfblEX291bZvsCYnhR2CH1hANBzT6n4HRdtBGPZSPdqmmzi632Ug4 utczVMjKKO+p4iOkPZqD8sNNuEOe+qcMzQfo0XltCMEDv4F/wtjD0wSK+a5D9OyZ MPsBqu8BYPNDlcl1ZXMkfWY30Jfw2LRoral8qr6YgTI2dYu11pI7lvMRbzeOLsuR LOT4X6sqfeNp7LfSTH+pQUleOVwE6DHag7rEGK2AW3Up7qFyRzNkIxSTsSNoWTVQ Ite5/MPjH0QixQ== X-ME-Sender: X-ME-Proxy-Cause: gggruggvucftvghtrhhoucdtuddrgeduledrudehuddgfeelucetufdoteggodetrfdotf fvucfrrhhofhhilhgvmecuhfgrshhtofgrihhlpdfqfgfvpdfurfetoffkrfgpnffqhgen uceurghilhhouhhtmecufedttdenucenucfjughrpefhvffufffkofgjfhgggfestdekre dtredttdenucfhrhhomheptehlihhsthgrihhrucfhrhgrnhgtihhsuceorghlihhsthgr ihhrsegrlhhishhtrghirhdvfedrmhgvqeenucggtffrrghtthgvrhhnpeeggedtteejke eggeeugfehueevudegvdetjeeviedugedvtdekffekhedtteduhfenucfkphepudelfedr vdejrddufedrvdefheenucevlhhushhtvghrufhiiigvpedtnecurfgrrhgrmhepmhgrih hlfhhrohhmpegrlhhishhtrghirhesrghlihhsthgrihhrvdefrdhmvg X-ME-Proxy: Received: from ThinkpadX1Yoga3.localdomain (unknown [193.27.13.235]) by mail.messagingengine.com (Postfix) with ESMTPA id CCC9C108005C; Thu, 25 Mar 2021 21:52:45 -0400 (EDT) From: Alistair Francis To: dmitry.torokhov@gmail.com, linux-input@vger.kernel.org, linux-imx@nxp.com, kernel@pengutronix.de Cc: linux-kernel@vger.kernel.org, alistair23@gmail.com, Alistair Francis Subject: [PATCH v4 06/10] Input: wacom_i2c - Clean up the query device fields Date: Thu, 25 Mar 2021 21:52:26 -0400 Message-Id: <20210326015229.141-6-alistair@alistair23.me> X-Mailer: git-send-email 2.20.1 In-Reply-To: <20210326015229.141-1-alistair@alistair23.me> References: <20210326015229.141-1-alistair@alistair23.me> MIME-Version: 1.0 Precedence: bulk List-ID: X-Mailing-List: linux-input@vger.kernel.org Improve the query device fields to be more verbose. Signed-off-by: Alistair Francis --- v4: - Remove the reset_control_reset() logic drivers/input/touchscreen/wacom_i2c.c | 64 ++++++++++++++++++--------- 1 file changed, 44 insertions(+), 20 deletions(-) diff --git a/drivers/input/touchscreen/wacom_i2c.c b/drivers/input/touchscreen/wacom_i2c.c index 3b4bc514dc3f..84c7ccb737bd 100644 --- a/drivers/input/touchscreen/wacom_i2c.c +++ b/drivers/input/touchscreen/wacom_i2c.c @@ -13,15 +13,32 @@ #include #include #include +#include #include #include -#define WACOM_CMD_QUERY0 0x04 -#define WACOM_CMD_QUERY1 0x00 -#define WACOM_CMD_QUERY2 0x33 -#define WACOM_CMD_QUERY3 0x02 -#define WACOM_CMD_THROW0 0x05 -#define WACOM_CMD_THROW1 0x00 +// Registers +#define WACOM_COMMAND_LSB 0x04 +#define WACOM_COMMAND_MSB 0x00 + +#define WACOM_DATA_LSB 0x05 +#define WACOM_DATA_MSB 0x00 + +// Report types +#define REPORT_FEATURE 0x30 + +// Requests / operations +#define OPCODE_GET_REPORT 0x02 + +// Power settings +#define POWER_ON 0x00 +#define POWER_SLEEP 0x01 + +// Input report ids +#define WACOM_PEN_DATA_REPORT 2 +#define WACOM_SHINONOME_REPORT 26 + +#define WACOM_QUERY_REPORT 3 #define WACOM_QUERY_SIZE 22 struct wacom_features { @@ -48,27 +65,30 @@ static int wacom_query_device(struct i2c_client *client, struct wacom_features *features) { int ret; - u8 cmd1[] = { WACOM_CMD_QUERY0, WACOM_CMD_QUERY1, - WACOM_CMD_QUERY2, WACOM_CMD_QUERY3 }; - u8 cmd2[] = { WACOM_CMD_THROW0, WACOM_CMD_THROW1 }; u8 data[WACOM_QUERY_SIZE]; + + u8 get_query_data_cmd[] = { + WACOM_COMMAND_LSB, + WACOM_COMMAND_MSB, + REPORT_FEATURE | WACOM_QUERY_REPORT, + OPCODE_GET_REPORT, + WACOM_DATA_LSB, + WACOM_DATA_MSB, + }; + struct i2c_msg msgs[] = { + // Request reading of feature ReportID: 3 (Pen Query Data) { .addr = client->addr, .flags = 0, - .len = sizeof(cmd1), - .buf = cmd1, - }, - { - .addr = client->addr, - .flags = 0, - .len = sizeof(cmd2), - .buf = cmd2, + .len = sizeof(get_query_data_cmd), + .buf = get_query_data_cmd, }, + // Read 21 bytes { .addr = client->addr, .flags = I2C_M_RD, - .len = sizeof(data), + .len = WACOM_QUERY_SIZE - 1, .buf = data, }, }; @@ -89,9 +109,13 @@ static int wacom_query_device(struct i2c_client *client, features->tilt_y_max = get_unaligned_le16(&data[19]); dev_dbg(&client->dev, - "x_max:%d, y_max:%d, pressure:%d, fw:%d\n", + "x_max:%d, y_max:%d, pressure:%d, fw:%d, " + "distance: %d, phys distance: %d, " + "tilt_x_max: %d, tilt_y_max: %d\n", features->x_max, features->y_max, - features->pressure_max, features->fw_version); + features->pressure_max, features->fw_version, + features->distance_max, features->distance_physical_max, + features->tilt_x_max, features->tilt_y_max); return 0; }