From: Roderick Colenbrander <roderick@gaikai.com>
To: Jiri Kosina <jikos@kernel.org>,
Benjamin Tissoires <benjamin.tissoires@redhat.com>
Cc: linux-input@vger.kernel.org, Chris Ye <lzye@google.com>,
Roderick Colenbrander <roderick.colenbrander@sony.com>
Subject: [PATCH v2 02/13] HID: playstation: use DualSense MAC address as unique identifier.
Date: Sat, 2 Jan 2021 14:30:58 -0800 [thread overview]
Message-ID: <20210102223109.996781-3-roderick@gaikai.com> (raw)
In-Reply-To: <20210102223109.996781-1-roderick@gaikai.com>
From: Roderick Colenbrander <roderick.colenbrander@sony.com>
Use the DualSense MAC address as a unique identifier for the HID device.
Signed-off-by: Roderick Colenbrander <roderick.colenbrander@sony.com>
---
drivers/hid/hid-playstation.c | 40 +++++++++++++++++++++++++++++++++++
1 file changed, 40 insertions(+)
diff --git a/drivers/hid/hid-playstation.c b/drivers/hid/hid-playstation.c
index 3d5fe9069c26..af4a635997bb 100644
--- a/drivers/hid/hid-playstation.c
+++ b/drivers/hid/hid-playstation.c
@@ -21,12 +21,16 @@
/* Base class for playstation devices. */
struct ps_device {
struct hid_device *hdev;
+ uint8_t mac_address[6];
int (*parse_report)(struct ps_device *dev, struct hid_report *report, u8 *data, int size);
};
#define DS_INPUT_REPORT_USB 0x01
+#define DS_FEATURE_REPORT_PAIRING_INFO 9
+#define DS_FEATURE_REPORT_PAIRING_INFO_SIZE 19
+
/* Button masks for DualSense input report. */
#define DS_BUTTONS0_HAT_SWITCH GENMASK(3, 0)
#define DS_BUTTONS0_SQUARE BIT(4)
@@ -132,6 +136,7 @@ static struct input_dev *ps_allocate_input_dev(struct hid_device *hdev, const ch
return input_dev;
}
+
static struct input_dev *ps_gamepad_create(struct hid_device *hdev)
{
struct input_dev *gamepad;
@@ -162,6 +167,34 @@ static struct input_dev *ps_gamepad_create(struct hid_device *hdev)
return gamepad;
}
+static int dualsense_get_mac_address(struct dualsense *ds)
+{
+ uint8_t *buf;
+ int ret = 0;
+
+ buf = kzalloc(DS_FEATURE_REPORT_PAIRING_INFO_SIZE, GFP_KERNEL);
+ if (!buf)
+ return -ENOMEM;
+
+ ret = hid_hw_raw_request(ds->base.hdev, DS_FEATURE_REPORT_PAIRING_INFO, buf,
+ DS_FEATURE_REPORT_PAIRING_INFO_SIZE, HID_FEATURE_REPORT,
+ HID_REQ_GET_REPORT);
+ if (ret < 0)
+ goto err_free;
+ else if (ret != DS_FEATURE_REPORT_PAIRING_INFO_SIZE) {
+ hid_err(ds->base.hdev, "failed to retrieve DualSense pairing info\n");
+ ret = -EINVAL;
+ goto err_free;
+ }
+
+ /* Note MAC address is stored in little endian order. */
+ memcpy(ds->base.mac_address, &buf[1], sizeof(ds->base.mac_address));
+
+err_free:
+ kfree(buf);
+ return ret;
+}
+
static int dualsense_parse_report(struct ps_device *ps_dev, struct hid_report *report,
u8 *data, int size)
{
@@ -230,6 +263,13 @@ static struct ps_device *dualsense_create(struct hid_device *hdev)
ds->base.parse_report = dualsense_parse_report;
hid_set_drvdata(hdev, ds);
+ ret = dualsense_get_mac_address(ds);
+ if (ret < 0) {
+ hid_err(hdev, "Failed to get MAC address from DualSense\n");
+ return ERR_PTR(ret);
+ }
+ snprintf(hdev->uniq, sizeof(hdev->uniq), "%pMR", ds->base.mac_address);
+
ds->gamepad = ps_gamepad_create(hdev);
if (IS_ERR(ds->gamepad)) {
ret = PTR_ERR(ds->gamepad);
--
2.26.2
next prev parent reply other threads:[~2021-01-02 22:32 UTC|newest]
Thread overview: 42+ messages / expand[flat|nested] mbox.gz Atom feed top
2021-01-02 22:30 [PATCH v2 00/13] HID: new driver for PS5 'DualSense' controller Roderick Colenbrander
2021-01-02 22:30 ` [PATCH v2 01/13] HID: playstation: initial DualSense USB support Roderick Colenbrander
2021-01-04 12:20 ` Jiri Kosina
2021-01-05 8:20 ` Benjamin Tissoires
2021-01-07 17:14 ` Barnabás Pőcze
2021-01-08 7:12 ` Roderick Colenbrander
2021-01-08 11:53 ` Barnabás Pőcze
2021-01-02 22:30 ` Roderick Colenbrander [this message]
2021-01-07 17:22 ` [PATCH v2 02/13] HID: playstation: use DualSense MAC address as unique identifier Barnabás Pőcze
2021-01-02 22:30 ` [PATCH v2 03/13] HID: playstation: add DualSense battery support Roderick Colenbrander
2021-01-07 17:50 ` Barnabás Pőcze
2021-01-02 22:31 ` [PATCH v2 04/13] HID: playstation: add DualSense touchpad support Roderick Colenbrander
2021-01-07 17:55 ` Barnabás Pőcze
2021-01-02 22:31 ` [PATCH v2 05/13] HID: playstation: add DualSense accelerometer and gyroscope support Roderick Colenbrander
2021-01-07 13:34 ` Florian Märkl
2021-01-08 5:51 ` Roderick Colenbrander
2021-01-07 18:51 ` Barnabás Pőcze
2021-01-08 6:06 ` Roderick Colenbrander
2021-01-08 12:01 ` Barnabás Pőcze
2021-01-08 17:15 ` Siarhei Vishniakou
2021-01-08 19:54 ` Roderick Colenbrander
2021-01-09 0:11 ` Siarhei Vishniakou
2021-01-11 0:06 ` Roderick Colenbrander
2021-01-02 22:31 ` [PATCH v2 06/13] HID: playstation: track devices in list Roderick Colenbrander
2021-01-07 20:13 ` Barnabás Pőcze
2021-01-02 22:31 ` [PATCH v2 07/13] HID: playstation: add DualSense Bluetooth support Roderick Colenbrander
2021-01-07 20:18 ` Barnabás Pőcze
2021-01-02 22:31 ` [PATCH v2 08/13] HID: playstation: add DualSense classic rumble support Roderick Colenbrander
2021-01-07 20:41 ` Barnabás Pőcze
2021-01-07 20:48 ` Barnabás Pőcze
2021-01-08 17:01 ` Roderick Colenbrander
2021-01-02 22:31 ` [PATCH v2 09/13] HID: playstation: add DualSense lightbar support Roderick Colenbrander
2021-01-07 21:01 ` Barnabás Pőcze
2021-01-02 22:31 ` [PATCH v2 10/13] HID: playstation: add microphone mute support for DualSense Roderick Colenbrander
2021-01-07 21:57 ` Barnabás Pőcze
2021-01-02 22:31 ` [PATCH v2 11/13] HID: playstation: add DualSense player LEDs support Roderick Colenbrander
2021-01-07 22:17 ` Barnabás Pőcze
2021-01-02 22:31 ` [PATCH v2 12/13] HID: playstation: DualSense set LEDs to default player id Roderick Colenbrander
2021-01-07 22:25 ` Barnabás Pőcze
2021-01-02 22:31 ` [PATCH v2 13/13] HID: playstation: report DualSense hardware and firmware version Roderick Colenbrander
2021-01-07 22:26 ` Barnabás Pőcze
2021-01-09 1:35 ` Roderick Colenbrander
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