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Message-ID: <20250226010129.32043-2-luke@ljones.dev>
Date: Wed, 26 Feb 2025 14:01:28 +1300
From: Luke Jones <luke@...nes.dev>
To: linux-kernel@...r.kernel.org
Cc: hdegoede@...hat.com,
ilpo.jarvinen@...ux.intel.com,
platform-driver-x86@...r.kernel.org,
linux-input@...r.kernel.org,
bentiss@...nel.org,
jikos@...nel.org,
mario.limonciello@....com,
"Luke D. Jones" <luke@...nes.dev>
Subject: [PATCH v2 1/2] hid-asus: check ROG Ally MCU version and warn
From: "Luke D. Jones" <luke@...nes.dev>
ASUS have fixed suspend issues arising from a flag not being cleared in
the MCU FW in both the ROG Ally 1 and the ROG Ally X.
Implement a check and a warning to encourage users to update the FW to
a minimum supported version.
Signed-off-by: Luke D. Jones <luke@...nes.dev>
---
drivers/hid/hid-asus.c | 103 ++++++++++++++++++++++++++++++++++++++++-
1 file changed, 101 insertions(+), 2 deletions(-)
diff --git a/drivers/hid/hid-asus.c b/drivers/hid/hid-asus.c
index 46e3e42f9eb5..3cec622b6e68 100644
--- a/drivers/hid/hid-asus.c
+++ b/drivers/hid/hid-asus.c
@@ -52,6 +52,10 @@ MODULE_DESCRIPTION("Asus HID Keyboard and TouchPad");
#define FEATURE_KBD_LED_REPORT_ID1 0x5d
#define FEATURE_KBD_LED_REPORT_ID2 0x5e
+#define ROG_ALLY_REPORT_SIZE 64
+#define ROG_ALLY_X_MIN_MCU 313
+#define ROG_ALLY_MIN_MCU 319
+
#define SUPPORT_KBD_BACKLIGHT BIT(0)
#define MAX_TOUCH_MAJOR 8
@@ -84,6 +88,7 @@ MODULE_DESCRIPTION("Asus HID Keyboard and TouchPad");
#define QUIRK_MEDION_E1239T BIT(10)
#define QUIRK_ROG_NKEY_KEYBOARD BIT(11)
#define QUIRK_ROG_CLAYMORE_II_KEYBOARD BIT(12)
+#define QUIRK_ROG_ALLY_XPAD BIT(13)
#define I2C_KEYBOARD_QUIRKS (QUIRK_FIX_NOTEBOOK_REPORT | \
QUIRK_NO_INIT_REPORTS | \
@@ -534,9 +539,95 @@ static bool asus_kbd_wmi_led_control_present(struct hid_device *hdev)
return !!(value & ASUS_WMI_DSTS_PRESENCE_BIT);
}
+/*
+ * We don't care about any other part of the string except the version section.
+ * Example strings: FGA80100.RC72LA.312_T01, FGA80100.RC71LS.318_T01
+ */
+static int mcu_parse_version_string(const u8 *response, size_t response_size)
+{
+ const u8 *end = response + response_size;
+ const u8 *p = response;
+ int dots, err;
+ long version;
+
+ dots = 0;
+ while (p < end && dots < 2) {
+ if (*p++ == '.')
+ dots++;
+ }
+
+ if (dots != 2 || p >= end)
+ return -EINVAL;
+
+ err = kstrtol((const char *)p, 10, &version);
+ if (err || version < 0)
+ return -EINVAL;
+
+ return version;
+}
+
+static int mcu_request_version(struct hid_device *hdev)
+{
+ const u8 request[] = { 0x5a, 0x05, 0x03, 0x31, 0x00, 0x20 };
+ u8 *response;
+ int ret;
+
+ response = kzalloc(ROG_ALLY_REPORT_SIZE, GFP_KERNEL);
+ if (!response)
+ return -ENOMEM;
+
+ ret = asus_kbd_set_report(hdev, request, sizeof(request));
+ if (ret < 0)
+ goto out;
+
+ ret = hid_hw_raw_request(hdev, FEATURE_REPORT_ID, response,
+ ROG_ALLY_REPORT_SIZE, HID_FEATURE_REPORT,
+ HID_REQ_GET_REPORT);
+ if (ret < 0)
+ goto out;
+
+ ret = mcu_parse_version_string(response, ROG_ALLY_REPORT_SIZE);
+
+out:
+ if (ret < 0)
+ hid_err(hdev, "Failed to get MCU version: %d, response: %*ph\n",
+ ret, ROG_ALLY_REPORT_SIZE, response);
+ kfree(response);
+ return ret;
+}
+
+static void validate_mcu_fw_version(struct hid_device *hdev, int idProduct)
+{
+ int min_version, version;
+
+ version = mcu_request_version(hdev);
+ if (version < 0)
+ return;
+
+ switch (idProduct) {
+ case USB_DEVICE_ID_ASUSTEK_ROG_NKEY_ALLY:
+ min_version = ROG_ALLY_MIN_MCU;
+ break;
+ case USB_DEVICE_ID_ASUSTEK_ROG_NKEY_ALLY_X:
+ min_version = ROG_ALLY_X_MIN_MCU;
+ break;
+ default:
+ min_version = 0;
+ }
+
+ hid_info(hdev, "Ally device MCU version: %d\n", version);
+ if (version < min_version) {
+ hid_warn(hdev,
+ "The MCU firmware version must be %d or greater to avoid issues with suspend.\n",
+ min_version);
+ }
+}
+
static int asus_kbd_register_leds(struct hid_device *hdev)
{
struct asus_drvdata *drvdata = hid_get_drvdata(hdev);
+ struct usb_interface *intf;
+ struct usb_device *udev;
unsigned char kbd_func;
int ret;
@@ -560,6 +651,14 @@ static int asus_kbd_register_leds(struct hid_device *hdev)
if (ret < 0)
return ret;
}
+
+ if (drvdata->quirks & QUIRK_ROG_ALLY_XPAD) {
+ intf = to_usb_interface(hdev->dev.parent);
+ udev = interface_to_usbdev(intf);
+ validate_mcu_fw_version(hdev,
+ le16_to_cpu(udev->descriptor.idProduct));
+ }
+
} else {
/* Initialize keyboard */
ret = asus_kbd_init(hdev, FEATURE_KBD_REPORT_ID);
@@ -1280,10 +1379,10 @@ static const struct hid_device_id asus_devices[] = {
QUIRK_USE_KBD_BACKLIGHT | QUIRK_ROG_NKEY_KEYBOARD },
{ HID_USB_DEVICE(USB_VENDOR_ID_ASUSTEK,
USB_DEVICE_ID_ASUSTEK_ROG_NKEY_ALLY),
- QUIRK_USE_KBD_BACKLIGHT | QUIRK_ROG_NKEY_KEYBOARD },
+ QUIRK_USE_KBD_BACKLIGHT | QUIRK_ROG_NKEY_KEYBOARD | QUIRK_ROG_ALLY_XPAD},
{ HID_USB_DEVICE(USB_VENDOR_ID_ASUSTEK,
USB_DEVICE_ID_ASUSTEK_ROG_NKEY_ALLY_X),
- QUIRK_USE_KBD_BACKLIGHT | QUIRK_ROG_NKEY_KEYBOARD },
+ QUIRK_USE_KBD_BACKLIGHT | QUIRK_ROG_NKEY_KEYBOARD | QUIRK_ROG_ALLY_XPAD },
{ HID_USB_DEVICE(USB_VENDOR_ID_ASUSTEK,
USB_DEVICE_ID_ASUSTEK_ROG_CLAYMORE_II_KEYBOARD),
QUIRK_ROG_CLAYMORE_II_KEYBOARD },
--
2.48.1
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