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[76.87.77.78]) by smtp.gmail.com with ESMTPSA id g3sm14018746pjt.34.2021.01.17.15.10.13 (version=TLS1_3 cipher=TLS_AES_256_GCM_SHA384 bits=256/256); Sun, 17 Jan 2021 15:10:13 -0800 (PST) From: Roderick Colenbrander To: Jiri Kosina , Benjamin Tissoires Cc: linux-input@vger.kernel.org, Chris Ye , Roderick Colenbrander Subject: [PATCH v3 12/12] HID: playstation: report DualSense hardware and firmware version. Date: Sun, 17 Jan 2021 15:09:56 -0800 Message-Id: <20210117230956.173031-13-roderick@gaikai.com> X-Mailer: git-send-email 2.26.2 In-Reply-To: <20210117230956.173031-1-roderick@gaikai.com> References: <20210117230956.173031-1-roderick@gaikai.com> MIME-Version: 1.0 Precedence: bulk List-ID: X-Mailing-List: linux-input@vger.kernel.org From: Roderick Colenbrander Retrieve DualSense hardware and firmware information using a vendor specific feature report. Report the data through sysfs and also report using hid_info as there can be signficant differences between versions. Signed-off-by: Roderick Colenbrander --- drivers/hid/hid-playstation.c | 81 +++++++++++++++++++++++++++++++++++ 1 file changed, 81 insertions(+) diff --git a/drivers/hid/hid-playstation.c b/drivers/hid/hid-playstation.c index 1cfad1f40b4e..ea5d3e69687c 100644 --- a/drivers/hid/hid-playstation.c +++ b/drivers/hid/hid-playstation.c @@ -41,6 +41,8 @@ struct ps_device { int battery_status; uint8_t mac_address[6]; /* Note: stored in little endian order. */ + uint32_t hw_version; + uint32_t fw_version; int (*parse_report)(struct ps_device *dev, struct hid_report *report, u8 *data, int size); }; @@ -77,6 +79,8 @@ struct ps_led_info { #define DS_FEATURE_REPORT_CALIBRATION_SIZE 41 #define DS_FEATURE_REPORT_PAIRING_INFO 0x09 #define DS_FEATURE_REPORT_PAIRING_INFO_SIZE 20 +#define DS_FEATURE_REPORT_FIRMWARE_INFO 0x20 +#define DS_FEATURE_REPORT_FIRMWARE_INFO_SIZE 64 /* Button masks for DualSense input report. */ #define DS_BUTTONS0_HAT_SWITCH GENMASK(3, 0) @@ -649,6 +653,40 @@ static struct input_dev *ps_touchpad_create(struct hid_device *hdev, int width, return touchpad; } +static ssize_t ps_show_firmware_version(struct device *dev, + struct device_attribute + *attr, char *buf) +{ + struct hid_device *hdev = to_hid_device(dev); + struct ps_device *ps_dev = hid_get_drvdata(hdev); + + return sysfs_emit(buf, "0x%08x\n", ps_dev->fw_version); +} + +static DEVICE_ATTR(firmware_version, 0444, ps_show_firmware_version, NULL); + +static ssize_t ps_show_hardware_version(struct device *dev, + struct device_attribute + *attr, char *buf) +{ + struct hid_device *hdev = to_hid_device(dev); + struct ps_device *ps_dev = hid_get_drvdata(hdev); + + return sysfs_emit(buf, "0x%08x\n", ps_dev->hw_version); +} + +static DEVICE_ATTR(hardware_version, 0444, ps_show_hardware_version, NULL); + +static struct attribute *ps_device_attributes[] = { + &dev_attr_firmware_version.attr, + &dev_attr_hardware_version.attr, + NULL +}; + +static const struct attribute_group ps_device_attribute_group = { + .attrs = ps_device_attributes, +}; + static int dualsense_get_calibration_data(struct dualsense *ds) { short gyro_pitch_bias, gyro_pitch_plus, gyro_pitch_minus; @@ -739,6 +777,30 @@ static int dualsense_get_calibration_data(struct dualsense *ds) return ret; } +static int dualsense_get_firmware_info(struct dualsense *ds) +{ + uint8_t *buf; + int ret; + + buf = kzalloc(DS_FEATURE_REPORT_FIRMWARE_INFO_SIZE, GFP_KERNEL); + if (!buf) + return -ENOMEM; + + ret = ps_get_report(ds->base.hdev, DS_FEATURE_REPORT_FIRMWARE_INFO, buf, + DS_FEATURE_REPORT_FIRMWARE_INFO_SIZE); + if (ret) { + hid_err(ds->base.hdev, "Failed to retrieve DualSense firmware info: %d\n", ret); + goto err_free; + } + + ds->base.hw_version = get_unaligned_le32(&buf[24]); + ds->base.fw_version = get_unaligned_le32(&buf[28]); + +err_free: + kfree(buf); + return ret; +} + static int dualsense_get_mac_address(struct dualsense *ds) { uint8_t *buf; @@ -1240,6 +1302,12 @@ static struct ps_device *dualsense_create(struct hid_device *hdev) } snprintf(hdev->uniq, sizeof(hdev->uniq), "%pMR", ds->base.mac_address); + ret = dualsense_get_firmware_info(ds); + if (ret) { + hid_err(hdev, "Failed to get firmware info from DualSense\n"); + return ERR_PTR(ret); + } + ret = ps_devices_list_add(ps_dev); if (ret) return ERR_PTR(ret); @@ -1307,6 +1375,13 @@ static struct ps_device *dualsense_create(struct hid_device *hdev) /* Set player LEDs to our player id. */ dualsense_set_player_leds(ds); + /* + * Reporting hardware and firmware is important as there are frequent updates, which + * can change behavior. + */ + hid_info(hdev, "Registered DualSense controller hw_version=0x%08x fw_version=0x%08x\n", + ds->base.hw_version, ds->base.fw_version); + return &ds->base; err: @@ -1357,6 +1432,12 @@ static int ps_probe(struct hid_device *hdev, const struct hid_device_id *id) } } + ret = devm_device_add_group(&hdev->dev, &ps_device_attribute_group); + if (ret) { + hid_err(hdev, "Failed to register sysfs nodes.\n"); + goto err_close; + } + return ret; err_close: