From patchwork Wed Jun 2 06:12:51 2021 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: Roderick Colenbrander X-Patchwork-Id: 452843 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=-16.8 required=3.0 tests=BAYES_00,DKIM_SIGNED, DKIM_VALID, HEADER_FROM_DIFFERENT_DOMAINS, INCLUDES_CR_TRAILER, INCLUDES_PATCH, MAILING_LIST_MULTI, SPF_HELO_NONE, SPF_PASS, URIBL_BLOCKED, USER_AGENT_GIT autolearn=unavailable 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 688AEC47092 for ; Wed, 2 Jun 2021 06:13:48 +0000 (UTC) Received: from vger.kernel.org (vger.kernel.org [23.128.96.18]) by mail.kernel.org (Postfix) with ESMTP id 4C5B9613AE for ; Wed, 2 Jun 2021 06:13:48 +0000 (UTC) Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S230446AbhFBGP2 (ORCPT ); Wed, 2 Jun 2021 02:15:28 -0400 Received: from lindbergh.monkeyblade.net ([23.128.96.19]:38400 "EHLO lindbergh.monkeyblade.net" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S230463AbhFBGP0 (ORCPT ); Wed, 2 Jun 2021 02:15:26 -0400 Received: from mail-pf1-x42f.google.com (mail-pf1-x42f.google.com [IPv6:2607:f8b0:4864:20::42f]) by lindbergh.monkeyblade.net (Postfix) with ESMTPS id F3379C06174A for ; Tue, 1 Jun 2021 23:13:43 -0700 (PDT) Received: by mail-pf1-x42f.google.com with SMTP id t28so1345269pfg.10 for ; Tue, 01 Jun 2021 23:13:43 -0700 (PDT) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=gaikai-com.20150623.gappssmtp.com; s=20150623; h=from:to:cc:subject:date:message-id:in-reply-to:references :mime-version:content-transfer-encoding; bh=xD0PniJbQjJKktSuYV66hRs25lK5j2m0aanTozSm5Us=; b=YeTlmP8mSaTkddGacGBImpGicASuDDZD4CV2HGPd0zg19bd/WtIAJBph0beMzz1Jtr rbtCGjj82rw9qkX2y2w9BtK22Jbi8/ZsuZpMd3NaYAaXUcbQrUEYjNfKi6mvDEOa0J75 kIGtDJTaTndLaJfs+GVJ7b+DAdIy8p+BcL80201alVqV/GmKJnYhU7lMRs20WrzqiSv3 Z351IlhfnLocUn8Gd1QTuvATJIUdoIHL8zCqV/RUBZQVnd9B06IwvoT2Oa5HxPiwq9zc WwSu8Vb6VH7iBF/6Q3hypH/zz2YAU/vZeCv4eeubQwkOcZMFjjS7HvMXkU99A/euWr5L 2UBQ== 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:mime-version:content-transfer-encoding; bh=xD0PniJbQjJKktSuYV66hRs25lK5j2m0aanTozSm5Us=; b=aVZVLIjfYvzNd5XGfSikT0KdCyIUEWDA6oho/EwD4MEybFwOF9sB7JrvqXfjH4u3EM p4ICvMlc9hm3RzzHb/b9A6/F+4oAiGF+qhknsH+icXLmWaP4lKUgdjUoj2Whxd5I4my9 k/0P7ae/n2k4JQufPMiclCGUYDw+ii77GxxYGP0ukFD4HZd+ofhfZXAWmGu4MGSYMaKy PBepcAG05oOCwC19PUX7/kIbnlbLFyaHPq2EpI4NOT+ylgOKl4kgnBekgZz7x8ZHdxz2 u9One8FS+EsCloZgDBUi4MhK0+CtdYKkVgezPKBA3ne+1+ZjkQ5C4NAsuHT94BhTia1M ovJQ== X-Gm-Message-State: AOAM530ZM3HacF3rN+rZBsoNz2VeO1Ktsm+bZL8GCTENikhs5YhtpyQB vZNdVyAqdlbgPeO6qJaTmB9Btw== X-Google-Smtp-Source: ABdhPJxnduOPe4CEyQOEmoOxjiRHPZCv8q9JUbCVN8uF5kjxI7ibNOFP/E2SKBLnkodU/NhBPwoftg== X-Received: by 2002:aa7:8c4e:0:b029:2df:9b70:44e with SMTP id e14-20020aa78c4e0000b02902df9b70044emr25768858pfd.49.1622614423550; Tue, 01 Jun 2021 23:13:43 -0700 (PDT) Received: from localhost.localdomain (cpe-76-87-77-78.socal.res.rr.com. [76.87.77.78]) by smtp.gmail.com with ESMTPSA id k20sm16535374pgl.72.2021.06.01.23.13.42 (version=TLS1_3 cipher=TLS_AES_256_GCM_SHA384 bits=256/256); Tue, 01 Jun 2021 23:13:43 -0700 (PDT) From: Roderick Colenbrander To: Jiri Kosina , Benjamin Tissoires , Pavel Machek Cc: linux-input@vger.kernel.org, linux-leds@vger.kernel.org, =?utf-8?q?Bar?= =?utf-8?b?bmFiw6FzIFDFkWN6ZQ==?= , "Daniel J . Ogorchock" , Roderick Colenbrander Subject: [PATCH 1/3] HID: playstation: expose DualSense lightbar through a multi-color LED. Date: Tue, 1 Jun 2021 23:12:51 -0700 Message-Id: <20210602061253.5747-2-roderick@gaikai.com> X-Mailer: git-send-email 2.31.1 In-Reply-To: <20210602061253.5747-1-roderick@gaikai.com> References: <20210602061253.5747-1-roderick@gaikai.com> MIME-Version: 1.0 Precedence: bulk List-ID: X-Mailing-List: linux-leds@vger.kernel.org From: Roderick Colenbrander The DualSense lightbar has so far been supported, but it was not yet adjustable from user space. This patch exposes it through a multi-color LED. Signed-off-by: Roderick Colenbrander --- drivers/hid/hid-playstation.c | 72 +++++++++++++++++++++++++++++++++++ 1 file changed, 72 insertions(+) diff --git a/drivers/hid/hid-playstation.c b/drivers/hid/hid-playstation.c index ab7c82c2e886..ff2fc315a89d 100644 --- a/drivers/hid/hid-playstation.c +++ b/drivers/hid/hid-playstation.c @@ -11,6 +11,8 @@ #include #include #include +#include +#include #include #include @@ -38,6 +40,7 @@ struct ps_device { uint8_t battery_capacity; int battery_status; + const char *input_dev_name; /* Name of primary input device. */ uint8_t mac_address[6]; /* Note: stored in little endian order. */ uint32_t hw_version; uint32_t fw_version; @@ -147,6 +150,7 @@ struct dualsense { uint8_t motor_right; /* RGB lightbar */ + struct led_classdev_mc lightbar; bool update_lightbar; uint8_t lightbar_red; uint8_t lightbar_green; @@ -288,6 +292,8 @@ static const struct {int x; int y; } ps_gamepad_hat_mapping[] = { {0, 0}, }; +static void dualsense_set_lightbar(struct dualsense *ds, uint8_t red, uint8_t green, uint8_t blue); + /* * Add a new ps_device to ps_devices if it doesn't exist. * Return error on duplicate device, which can happen if the same @@ -525,6 +531,45 @@ static int ps_get_report(struct hid_device *hdev, uint8_t report_id, uint8_t *bu return 0; } +/* Register a DualSense/DualShock4 RGB lightbar represented by a multicolor LED. */ +static int ps_lightbar_register(struct ps_device *ps_dev, struct led_classdev_mc *lightbar_mc_dev, + int (*brightness_set)(struct led_classdev *, enum led_brightness)) +{ + struct hid_device *hdev = ps_dev->hdev; + struct mc_subled *mc_led_info; + struct led_classdev *led_cdev; + int ret; + + mc_led_info = devm_kmalloc_array(&hdev->dev, 3, sizeof(*mc_led_info), + GFP_KERNEL | __GFP_ZERO); + if (!mc_led_info) + return -ENOMEM; + + mc_led_info[0].color_index = LED_COLOR_ID_RED; + mc_led_info[1].color_index = LED_COLOR_ID_GREEN; + mc_led_info[2].color_index = LED_COLOR_ID_BLUE; + + lightbar_mc_dev->subled_info = mc_led_info; + lightbar_mc_dev->num_colors = 3; + + led_cdev = &lightbar_mc_dev->led_cdev; + led_cdev->name = devm_kasprintf(&hdev->dev, GFP_KERNEL, "%s:rgb:indicator", + ps_dev->input_dev_name); + if (!led_cdev->name) + return -ENOMEM; + led_cdev->brightness = 255; + led_cdev->max_brightness = 255; + led_cdev->brightness_set_blocking = brightness_set; + + ret = devm_led_classdev_multicolor_register(&hdev->dev, lightbar_mc_dev); + if (ret < 0) { + hid_err(hdev, "Cannot register multicolor LED device\n"); + return ret; + } + + return 0; +} + static struct input_dev *ps_sensors_create(struct hid_device *hdev, int accel_range, int accel_res, int gyro_range, int gyro_res) { @@ -761,6 +806,22 @@ static int dualsense_get_mac_address(struct dualsense *ds) return ret; } +static int dualsense_lightbar_set_brightness(struct led_classdev *cdev, + enum led_brightness brightness) +{ + struct led_classdev_mc *mc_cdev = lcdev_to_mccdev(cdev); + struct dualsense *ds = container_of(mc_cdev, struct dualsense, lightbar); + uint8_t red, green, blue; + + led_mc_calc_color_components(mc_cdev, brightness); + red = mc_cdev->subled_info[0].brightness; + green = mc_cdev->subled_info[1].brightness; + blue = mc_cdev->subled_info[2].brightness; + + dualsense_set_lightbar(ds, red, green, blue); + return 0; +} + static void dualsense_init_output_report(struct dualsense *ds, struct dualsense_output_report *rp, void *buf) { @@ -1106,10 +1167,14 @@ static int dualsense_reset_leds(struct dualsense *ds) static void dualsense_set_lightbar(struct dualsense *ds, uint8_t red, uint8_t green, uint8_t blue) { + unsigned long flags; + + spin_lock_irqsave(&ds->base.lock, flags); ds->update_lightbar = true; ds->lightbar_red = red; ds->lightbar_green = green; ds->lightbar_blue = blue; + spin_unlock_irqrestore(&ds->base.lock, flags); schedule_work(&ds->output_worker); } @@ -1196,6 +1261,8 @@ static struct ps_device *dualsense_create(struct hid_device *hdev) ret = PTR_ERR(ds->gamepad); goto err; } + /* Use gamepad input device name as primary device name for e.g. LEDs */ + ps_dev->input_dev_name = dev_name(&ds->gamepad->dev); ds->sensors = ps_sensors_create(hdev, DS_ACC_RANGE, DS_ACC_RES_PER_G, DS_GYRO_RANGE, DS_GYRO_RES_PER_DEG_S); @@ -1223,6 +1290,11 @@ static struct ps_device *dualsense_create(struct hid_device *hdev) if (ret) goto err; + ret = ps_lightbar_register(ps_dev, &ds->lightbar, dualsense_lightbar_set_brightness); + if (ret) + goto err; + + /* Set default lightbar color. */ dualsense_set_lightbar(ds, 0, 0, 128); /* blue */ ret = ps_device_set_player_id(ps_dev);