From patchwork Wed Oct 21 08:16:18 2015 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: Hans de Goede X-Patchwork-Id: 7454891 Return-Path: X-Original-To: patchwork-linux-input@patchwork.kernel.org Delivered-To: patchwork-parsemail@patchwork2.web.kernel.org Received: from mail.kernel.org (mail.kernel.org [198.145.29.136]) by patchwork2.web.kernel.org (Postfix) with ESMTP id 380A1BEEA4 for ; Wed, 21 Oct 2015 08:16:31 +0000 (UTC) Received: from mail.kernel.org (localhost [127.0.0.1]) by mail.kernel.org (Postfix) with ESMTP id 367F820842 for ; Wed, 21 Oct 2015 08:16:30 +0000 (UTC) Received: from vger.kernel.org (vger.kernel.org [209.132.180.67]) by mail.kernel.org (Postfix) with ESMTP id 3B7032083E for ; Wed, 21 Oct 2015 08:16:29 +0000 (UTC) Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1752788AbbJUIQ1 (ORCPT ); Wed, 21 Oct 2015 04:16:27 -0400 Received: from mx1.redhat.com ([209.132.183.28]:41176 "EHLO mx1.redhat.com" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1753308AbbJUIQZ (ORCPT ); Wed, 21 Oct 2015 04:16:25 -0400 Received: from int-mx09.intmail.prod.int.phx2.redhat.com (int-mx09.intmail.prod.int.phx2.redhat.com [10.5.11.22]) by mx1.redhat.com (Postfix) with ESMTPS id 36476C0AF787; Wed, 21 Oct 2015 08:16:25 +0000 (UTC) Received: from shalem.localdomain.com (vpn1-6-56.ams2.redhat.com [10.36.6.56]) by int-mx09.intmail.prod.int.phx2.redhat.com (8.14.4/8.14.4) with ESMTP id t9L8GLox005492; Wed, 21 Oct 2015 04:16:22 -0400 From: Hans de Goede To: Dmitry Torokhov Cc: Larry Finger , stable@vger.kernel.org, linux-input@vger.kernel.org, Hans de Goede Subject: [PATCH] alps: Only the Dell Latitude D420/430/620/630 have separate stick button bits Date: Wed, 21 Oct 2015 10:16:18 +0200 Message-Id: <1445415378-4820-1-git-send-email-hdegoede@redhat.com> X-Scanned-By: MIMEDefang 2.68 on 10.5.11.22 Sender: linux-input-owner@vger.kernel.org Precedence: bulk List-ID: X-Mailing-List: linux-input@vger.kernel.org X-Spam-Status: No, score=-5.2 required=5.0 tests=BAYES_00, RCVD_IN_DNSWL_HI, RP_MATCHES_RCVD, UNPARSEABLE_RELAY, URIBL_BLACK autolearn=unavailable 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 commit 92bac83dd79e ("Input: alps - non interleaved V2 dualpoint has separate stick button bits") assumes that all alps v2 non-interleaved dual point setups have the separate stick button bits. Later we limited this to Dell laptops only because of reports that this broke things on non Dell laptops. Now it turns out that this breaks things on the Dell Latitude D600 too. So it seems that only the Dell Latitude D420/430/620/630, which all share the same touchpad / stick combo, have these separate bits. This patch limits the checking of the separate bits to only these models fixing regressions with other models. Reported-and-tested-by: Larry Finger Cc: stable@vger.kernel.org Tested-by: Hans de Goede Signed-off-by: Hans de Goede --- drivers/input/mouse/alps.c | 48 ++++++++++++++++++++++++++++++++++++++++------ 1 file changed, 42 insertions(+), 6 deletions(-) diff --git a/drivers/input/mouse/alps.c b/drivers/input/mouse/alps.c index 4d24686..41e6cb5 100644 --- a/drivers/input/mouse/alps.c +++ b/drivers/input/mouse/alps.c @@ -100,7 +100,7 @@ static const struct alps_nibble_commands alps_v6_nibble_commands[] = { #define ALPS_FOUR_BUTTONS 0x40 /* 4 direction button present */ #define ALPS_PS2_INTERLEAVED 0x80 /* 3-byte PS/2 packet interleaved with 6-byte ALPS packet */ -#define ALPS_DELL 0x100 /* device is a Dell laptop */ +#define ALPS_STICK_BITS 0x100 /* separate stick button bits */ #define ALPS_BUTTONPAD 0x200 /* device is a clickpad */ static const struct alps_model_info alps_model_data[] = { @@ -159,6 +159,43 @@ static const struct alps_protocol_info alps_v8_protocol_data = { ALPS_PROTO_V8, 0x18, 0x18, 0 }; +/* + * Some v2 models report the stick buttons in separate bits + */ +static const struct dmi_system_id alps_dmi_has_separate_stick_buttons[] = { +#if defined(CONFIG_DMI) && defined(CONFIG_X86) + { + /* Extrapolated from other entries */ + .matches = { + DMI_MATCH(DMI_SYS_VENDOR, "Dell Inc."), + DMI_MATCH(DMI_PRODUCT_NAME, "Latitude D420"), + }, + }, + { + /* Reported-by: Hans de Bruin */ + .matches = { + DMI_MATCH(DMI_SYS_VENDOR, "Dell Inc."), + DMI_MATCH(DMI_PRODUCT_NAME, "Latitude D430"), + }, + }, + { + /* Reported-by: Hans de Goede */ + .matches = { + DMI_MATCH(DMI_SYS_VENDOR, "Dell Inc."), + DMI_MATCH(DMI_PRODUCT_NAME, "Latitude D620"), + }, + }, + { + /* Extrapolated from other entries */ + .matches = { + DMI_MATCH(DMI_SYS_VENDOR, "Dell Inc."), + DMI_MATCH(DMI_PRODUCT_NAME, "Latitude D630"), + }, + }, +#endif + { } +}; + static void alps_set_abs_params_st(struct alps_data *priv, struct input_dev *dev1); static void alps_set_abs_params_semi_mt(struct alps_data *priv, @@ -253,9 +290,8 @@ static void alps_process_packet_v1_v2(struct psmouse *psmouse) return; } - /* Dell non interleaved V2 dualpoint has separate stick button bits */ - if (priv->proto_version == ALPS_PROTO_V2 && - priv->flags == (ALPS_DELL | ALPS_PASS | ALPS_DUALPOINT)) { + /* Some models have separate stick button bits */ + if (priv->flags & ALPS_STICK_BITS) { left |= packet[0] & 1; right |= packet[0] & 2; middle |= packet[0] & 4; @@ -2552,8 +2588,6 @@ static int alps_set_protocol(struct psmouse *psmouse, priv->byte0 = protocol->byte0; priv->mask0 = protocol->mask0; priv->flags = protocol->flags; - if (dmi_name_in_vendors("Dell")) - priv->flags |= ALPS_DELL; priv->x_max = 2000; priv->y_max = 1400; @@ -2568,6 +2602,8 @@ static int alps_set_protocol(struct psmouse *psmouse, priv->set_abs_params = alps_set_abs_params_st; priv->x_max = 1023; priv->y_max = 767; + if (dmi_check_system(alps_dmi_has_separate_stick_buttons)) + priv->flags |= ALPS_STICK_BITS; break; case ALPS_PROTO_V3: