From patchwork Fri May 29 23:00:59 2015 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: Dmitry Tunin X-Patchwork-Id: 6511801 Return-Path: X-Original-To: patchwork-linux-input@patchwork.kernel.org Delivered-To: patchwork-parsemail@patchwork1.web.kernel.org Received: from mail.kernel.org (mail.kernel.org [198.145.29.136]) by patchwork1.web.kernel.org (Postfix) with ESMTP id 0B30F9F1C1 for ; Fri, 29 May 2015 23:01:23 +0000 (UTC) Received: from mail.kernel.org (localhost [127.0.0.1]) by mail.kernel.org (Postfix) with ESMTP id 18BF420801 for ; Fri, 29 May 2015 23:01:22 +0000 (UTC) Received: from vger.kernel.org (vger.kernel.org [209.132.180.67]) by mail.kernel.org (Postfix) with ESMTP id 11C5C207E3 for ; Fri, 29 May 2015 23:01:21 +0000 (UTC) Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1422715AbbE2XBS (ORCPT ); Fri, 29 May 2015 19:01:18 -0400 Received: from mail-lb0-f174.google.com ([209.85.217.174]:34602 "EHLO mail-lb0-f174.google.com" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1422662AbbE2XBP (ORCPT ); Fri, 29 May 2015 19:01:15 -0400 Received: by lbcmx3 with SMTP id mx3so57205956lbc.1; Fri, 29 May 2015 16:01:14 -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=vhhklAMu3fxcmjHvH4VQo/rxh7mJhXX2/SVuL+4dd/Y=; b=ZL8MzSL2y2MloicRNPKRolXL1vQPybNY4Gemb+QbSpHZpypT7Os60ROj5JZGX+nJ+d uR22L5FO8OLAayCwLG0T9Vj9s+ARHHE6qx25LWZXUyMNGszmki63VQ1PP5Rjw/53gOYK oMZ8U5e6FCdrPG6txClAQLZSuNPVfvjKVMbY/QvpkIriRXrv6SYflRo9qkKvKIcaON7b +9NJeY/fKBbjeMzLSjq7pSNtKB1nk2Q+2aafPlVu5XKTD00R+cBqNr3YQuD1z8B1bZR6 ViCMgPAVmcoWwrOd1TNhomDXIOBWgsmu84zh3Yizi9BsdWm3RBK+iFaL21NvSfweUeHB QqmQ== X-Received: by 10.112.210.2 with SMTP id mq2mr10271287lbc.17.1432940474006; Fri, 29 May 2015 16:01:14 -0700 (PDT) Received: from localhost.localdomain (95-25-246-124.broadband.corbina.ru. [95.25.246.124]) by mx.google.com with ESMTPSA id xx2sm1828879lbb.13.2015.05.29.16.01.13 (version=TLSv1.2 cipher=ECDHE-RSA-AES128-SHA bits=128/128); Fri, 29 May 2015 16:01:13 -0700 (PDT) From: Dmitry Tunin To: Dmitry Torokhov Cc: linux-input@vger.kernel.org, linux-kernel@vger.kernel.org, Dmitry Tunin Subject: [PATCH] psmouse - focaltech report finger width to userspace Date: Sat, 30 May 2015 02:00:59 +0300 Message-Id: <1432940459-19828-1-git-send-email-hanipouspilot@gmail.com> X-Mailer: git-send-email 1.9.1 Sender: linux-input-owner@vger.kernel.org Precedence: bulk List-ID: X-Mailing-List: linux-input@vger.kernel.org X-Spam-Status: No, score=-6.8 required=5.0 tests=BAYES_00, DKIM_ADSP_CUSTOM_MED, DKIM_SIGNED, FREEMAIL_FROM, RCVD_IN_DNSWL_HI, T_DKIM_INVALID, T_RP_MATCHES_RCVD, UNPARSEABLE_RELAY autolearn=ham version=3.3.1 X-Spam-Checker-Version: SpamAssassin 3.3.1 (2010-03-16) on mail.kernel.org X-Virus-Scanned: ClamAV using ClamSMTP Focaltech touchpads report finger width in packet[5] of absolute packet. Range for width in raw format is 0x10 - 0x70. Second half-byte is always 0. 0xff is reported, when a large contact area is detected. This can be handled in userspace. Signed-off-by: Dmitry Tunin --- drivers/input/mouse/focaltech.c | 20 +++++++++++++++++--- 1 file changed, 17 insertions(+), 3 deletions(-) diff --git a/drivers/input/mouse/focaltech.c b/drivers/input/mouse/focaltech.c index 23d2594..0c3b698 100644 --- a/drivers/input/mouse/focaltech.c +++ b/drivers/input/mouse/focaltech.c @@ -105,6 +105,16 @@ struct focaltech_hw_state { /* True if the clickpad has been pressed. */ bool pressed; + + /* + * Finger width 0-7 and 15 for a very big contact area. + * 15 value stays until the finger is released. + * Width is reported only in absolute packets. + * Since hardware reports width only for last touching finger, + * there is no need to store width for every specific finger, so + * we keep only last value reported. + */ + unsigned int width; }; struct focaltech_data { @@ -112,7 +122,7 @@ struct focaltech_data { struct focaltech_hw_state state; }; -static void focaltech_report_state(struct psmouse *psmouse) +static void focaltech_report_state(struct psmouse *psmouse, bool abs) { struct focaltech_data *priv = psmouse->private; struct focaltech_hw_state *state = &priv->state; @@ -137,6 +147,7 @@ static void focaltech_report_state(struct psmouse *psmouse) input_report_abs(dev, ABS_MT_POSITION_X, clamped_x); input_report_abs(dev, ABS_MT_POSITION_Y, priv->y_max - clamped_y); + if (abs) input_report_abs(dev, ABS_TOOL_WIDTH, state->width); } } input_mt_report_pointer_emulation(dev, true); @@ -187,6 +198,7 @@ static void focaltech_process_abs_packet(struct psmouse *psmouse, state->fingers[finger].x = ((packet[1] & 0xf) << 8) | packet[2]; state->fingers[finger].y = (packet[3] << 8) | packet[4]; + state->width = packet[5] >> 4; state->fingers[finger].valid = true; } @@ -228,22 +240,23 @@ static void focaltech_process_packet(struct psmouse *psmouse) switch (packet[0] & 0xf) { case FOC_TOUCH: focaltech_process_touch_packet(psmouse, packet); + focaltech_report_state(psmouse, false); break; case FOC_ABS: focaltech_process_abs_packet(psmouse, packet); + focaltech_report_state(psmouse, true); break; case FOC_REL: focaltech_process_rel_packet(psmouse, packet); + focaltech_report_state(psmouse, false); break; default: psmouse_err(psmouse, "Unknown packet type: %02x\n", packet[0]); break; } - - focaltech_report_state(psmouse); } static psmouse_ret_t focaltech_process_byte(struct psmouse *psmouse) @@ -331,6 +344,7 @@ static void focaltech_set_input_params(struct psmouse *psmouse) __set_bit(EV_ABS, dev->evbit); input_set_abs_params(dev, ABS_MT_POSITION_X, 0, priv->x_max, 0, 0); input_set_abs_params(dev, ABS_MT_POSITION_Y, 0, priv->y_max, 0, 0); + input_set_abs_params(dev, ABS_TOOL_WIDTH, 0, 15, 0, 0); input_mt_init_slots(dev, 5, INPUT_MT_POINTER); __set_bit(INPUT_PROP_BUTTONPAD, dev->propbit); }