Re: [PATCH v1] HID: logitech-hidpp: Detect hi-res scrolling support

From: Benjamin Tissoires
Date: Tue Sep 20 2022 - 09:38:23 EST

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On Wed, Sep 14, 2022 at 3:21 PM Bastien Nocera <hadess@xxxxxxxxxx> wrote:
>
> Rather than relying on a never-ending stream of patches for quirks.
>
> This change will detect whether HID++ 1.0 hi-res scroll, HID++ 2.0
> hi-res scroll or HID++ 2.0 hi-res scroll wheel is supported, and enable
> the feature without the need for quirks.
>
> Tested on a Logitech M705 mouse that was unsupported before this change.
>
> [ 9.365324] logitech-hidpp-device 0003:046D:406D.0006: input,hidraw3: USB HID v1.11 Mouse [Logitech M705] on usb-0000:00:14.0-4/input2:3
> [ 57.472434] logitech-hidpp-device 0003:046D:406D.0006: HID++ 4.5 device connected.
> [ 57.616429] logitech-hidpp-device 0003:046D:406D.0006: Detected HID++ 2.0 hi-res scroll wheel
> [ 57.712424] logitech-hidpp-device 0003:046D:406D.0006: wheel multiplier = 8
>
> Link: https://bugzilla.kernel.org/show_bug.cgi?id=216480
> Signed-off-by: Bastien Nocera <hadess@xxxxxxxxxx>
> ---

Added the tested-by line from Peter and applied to for-6.1/logitech in hid.git

Cheers,
Benjamin

> drivers/hid/hid-logitech-hidpp.c | 118 ++++++++++++++++---------------
> 1 file changed, 61 insertions(+), 57 deletions(-)
>
> diff --git a/drivers/hid/hid-logitech-hidpp.c b/drivers/hid/hid-logitech-hidpp.c
> index 74013d0e0a24..5f8261c7b74c 100644
> --- a/drivers/hid/hid-logitech-hidpp.c
> +++ b/drivers/hid/hid-logitech-hidpp.c
> @@ -74,21 +74,18 @@ MODULE_PARM_DESC(disable_tap_to_click,
> #define HIDPP_QUIRK_NO_HIDINPUT BIT(23)
> #define HIDPP_QUIRK_FORCE_OUTPUT_REPORTS BIT(24)
> #define HIDPP_QUIRK_UNIFYING BIT(25)
> -#define HIDPP_QUIRK_HI_RES_SCROLL_1P0 BIT(26)
> -#define HIDPP_QUIRK_HI_RES_SCROLL_X2120 BIT(27)
> -#define HIDPP_QUIRK_HI_RES_SCROLL_X2121 BIT(28)
> -#define HIDPP_QUIRK_HIDPP_WHEELS BIT(29)
> -#define HIDPP_QUIRK_HIDPP_EXTRA_MOUSE_BTNS BIT(30)
> -#define HIDPP_QUIRK_HIDPP_CONSUMER_VENDOR_KEYS BIT(31)
> +#define HIDPP_QUIRK_HIDPP_WHEELS BIT(26)
> +#define HIDPP_QUIRK_HIDPP_EXTRA_MOUSE_BTNS BIT(27)
> +#define HIDPP_QUIRK_HIDPP_CONSUMER_VENDOR_KEYS BIT(28)
>
> /* These are just aliases for now */
> #define HIDPP_QUIRK_KBD_SCROLL_WHEEL HIDPP_QUIRK_HIDPP_WHEELS
> #define HIDPP_QUIRK_KBD_ZOOM_WHEEL HIDPP_QUIRK_HIDPP_WHEELS
>
> /* Convenience constant to check for any high-res support. */
> -#define HIDPP_QUIRK_HI_RES_SCROLL (HIDPP_QUIRK_HI_RES_SCROLL_1P0 | \
> - HIDPP_QUIRK_HI_RES_SCROLL_X2120 | \
> - HIDPP_QUIRK_HI_RES_SCROLL_X2121)
> +#define HIDPP_CAPABILITY_HI_RES_SCROLL (HIDPP_CAPABILITY_HIDPP10_FAST_SCROLL | \
> + HIDPP_CAPABILITY_HIDPP20_HI_RES_SCROLL | \
> + HIDPP_CAPABILITY_HIDPP20_HI_RES_WHEEL)
>
> #define HIDPP_QUIRK_DELAYED_INIT HIDPP_QUIRK_NO_HIDINPUT
>
> @@ -99,6 +96,9 @@ MODULE_PARM_DESC(disable_tap_to_click,
> #define HIDPP_CAPABILITY_BATTERY_VOLTAGE BIT(4)
> #define HIDPP_CAPABILITY_BATTERY_PERCENTAGE BIT(5)
> #define HIDPP_CAPABILITY_UNIFIED_BATTERY BIT(6)
> +#define HIDPP_CAPABILITY_HIDPP20_HI_RES_WHEEL BIT(7)
> +#define HIDPP_CAPABILITY_HIDPP20_HI_RES_SCROLL BIT(8)
> +#define HIDPP_CAPABILITY_HIDPP10_FAST_SCROLL BIT(9)
>
> #define lg_map_key_clear(c) hid_map_usage_clear(hi, usage, bit, max, EV_KEY, (c))
>
> @@ -3418,14 +3418,14 @@ static int hi_res_scroll_enable(struct hidpp_device *hidpp)
> int ret;
> u8 multiplier = 1;
>
> - if (hidpp->quirks & HIDPP_QUIRK_HI_RES_SCROLL_X2121) {
> + if (hidpp->capabilities & HIDPP_CAPABILITY_HIDPP20_HI_RES_WHEEL) {
> ret = hidpp_hrw_set_wheel_mode(hidpp, false, true, false);
> if (ret == 0)
> ret = hidpp_hrw_get_wheel_capability(hidpp, &multiplier);
> - } else if (hidpp->quirks & HIDPP_QUIRK_HI_RES_SCROLL_X2120) {
> + } else if (hidpp->capabilities & HIDPP_CAPABILITY_HIDPP20_HI_RES_SCROLL) {
> ret = hidpp_hrs_set_highres_scrolling_mode(hidpp, true,
> &multiplier);
> - } else /* if (hidpp->quirks & HIDPP_QUIRK_HI_RES_SCROLL_1P0) */ {
> + } else /* if (hidpp->capabilities & HIDPP_CAPABILITY_HIDPP10_FAST_SCROLL) */ {
> ret = hidpp10_enable_scrolling_acceleration(hidpp);
> multiplier = 8;
> }
> @@ -3440,6 +3440,49 @@ static int hi_res_scroll_enable(struct hidpp_device *hidpp)
> return 0;
> }
>
> +static int hidpp_initialize_hires_scroll(struct hidpp_device *hidpp)
> +{
> + int ret;
> + unsigned long capabilities;
> +
> + capabilities = hidpp->capabilities;
> +
> + if (hidpp->protocol_major >= 2) {
> + u8 feature_index;
> + u8 feature_type;
> +
> + ret = hidpp_root_get_feature(hidpp, HIDPP_PAGE_HIRES_WHEEL,
> + &feature_index, &feature_type);
> + if (!ret) {
> + hidpp->capabilities |= HIDPP_CAPABILITY_HIDPP20_HI_RES_WHEEL;
> + hid_dbg(hidpp->hid_dev, "Detected HID++ 2.0 hi-res scroll wheel\n");
> + return 0;
> + }
> + ret = hidpp_root_get_feature(hidpp, HIDPP_PAGE_HI_RESOLUTION_SCROLLING,
> + &feature_index, &feature_type);
> + if (!ret) {
> + hidpp->capabilities |= HIDPP_CAPABILITY_HIDPP20_HI_RES_SCROLL;
> + hid_dbg(hidpp->hid_dev, "Detected HID++ 2.0 hi-res scrolling\n");
> + }
> + } else {
> + struct hidpp_report response;
> +
> + ret = hidpp_send_rap_command_sync(hidpp,
> + REPORT_ID_HIDPP_SHORT,
> + HIDPP_GET_REGISTER,
> + HIDPP_ENABLE_FAST_SCROLL,
> + NULL, 0, &response);
> + if (!ret) {
> + hidpp->capabilities |= HIDPP_CAPABILITY_HIDPP10_FAST_SCROLL;
> + hid_dbg(hidpp->hid_dev, "Detected HID++ 1.0 fast scroll\n");
> + }
> + }
> +
> + if (hidpp->capabilities == capabilities)
> + hid_dbg(hidpp->hid_dev, "Did not detect HID++ hi-res scrolling hardware support\n");
> + return 0;
> +}
> +
> /* -------------------------------------------------------------------------- */
> /* Generic HID++ devices */
> /* -------------------------------------------------------------------------- */
> @@ -3694,8 +3737,9 @@ static int hidpp_event(struct hid_device *hdev, struct hid_field *field,
> * cases we must return early (falling back to default behaviour) to
> * avoid a crash in hidpp_scroll_counter_handle_scroll.
> */
> - if (!(hidpp->quirks & HIDPP_QUIRK_HI_RES_SCROLL) || value == 0
> - || hidpp->input == NULL || counter->wheel_multiplier == 0)
> + if (!(hidpp->capabilities & HIDPP_CAPABILITY_HI_RES_SCROLL)
> + || value == 0 || hidpp->input == NULL
> + || counter->wheel_multiplier == 0)
> return 0;
>
> hidpp_scroll_counter_handle_scroll(hidpp->input, counter, value);
> @@ -3927,6 +3971,7 @@ static void hidpp_connect_event(struct hidpp_device *hidpp)
> }
>
> hidpp_initialize_battery(hidpp);
> + hidpp_initialize_hires_scroll(hidpp);
>
> /* forward current battery state */
> if (hidpp->capabilities & HIDPP_CAPABILITY_HIDPP10_BATTERY) {
> @@ -3946,7 +3991,7 @@ static void hidpp_connect_event(struct hidpp_device *hidpp)
> if (hidpp->battery.ps)
> power_supply_changed(hidpp->battery.ps);
>
> - if (hidpp->quirks & HIDPP_QUIRK_HI_RES_SCROLL)
> + if (hidpp->capabilities & HIDPP_CAPABILITY_HI_RES_SCROLL)
> hi_res_scroll_enable(hidpp);
>
> if (!(hidpp->quirks & HIDPP_QUIRK_NO_HIDINPUT) || hidpp->delayed_input)
> @@ -4257,42 +4302,9 @@ static const struct hid_device_id hidpp_devices[] = {
> HID_BLUETOOTH_DEVICE(USB_VENDOR_ID_LOGITECH,
> USB_DEVICE_ID_LOGITECH_T651),
> .driver_data = HIDPP_QUIRK_CLASS_WTP },
> - { /* Mouse Logitech Anywhere MX */
> - LDJ_DEVICE(0x1017), .driver_data = HIDPP_QUIRK_HI_RES_SCROLL_1P0 },
> - { /* Mouse Logitech Cube */
> - LDJ_DEVICE(0x4010), .driver_data = HIDPP_QUIRK_HI_RES_SCROLL_X2120 },
> - { /* Mouse Logitech M335 */
> - LDJ_DEVICE(0x4050), .driver_data = HIDPP_QUIRK_HI_RES_SCROLL_X2121 },
> - { /* Mouse Logitech M515 */
> - LDJ_DEVICE(0x4007), .driver_data = HIDPP_QUIRK_HI_RES_SCROLL_X2120 },
> { /* Mouse logitech M560 */
> LDJ_DEVICE(0x402d),
> - .driver_data = HIDPP_QUIRK_DELAYED_INIT | HIDPP_QUIRK_CLASS_M560
> - | HIDPP_QUIRK_HI_RES_SCROLL_X2120 },
> - { /* Mouse Logitech M705 (firmware RQM17) */
> - LDJ_DEVICE(0x101b), .driver_data = HIDPP_QUIRK_HI_RES_SCROLL_1P0 },
> - { /* Mouse Logitech M705 (firmware RQM67) */
> - LDJ_DEVICE(0x406d), .driver_data = HIDPP_QUIRK_HI_RES_SCROLL_X2121 },
> - { /* Mouse Logitech M720 */
> - LDJ_DEVICE(0x405e), .driver_data = HIDPP_QUIRK_HI_RES_SCROLL_X2121 },
> - { /* Mouse Logitech MX Anywhere 2 */
> - LDJ_DEVICE(0x404a), .driver_data = HIDPP_QUIRK_HI_RES_SCROLL_X2121 },
> - { LDJ_DEVICE(0x4072), .driver_data = HIDPP_QUIRK_HI_RES_SCROLL_X2121 },
> - { LDJ_DEVICE(0xb013), .driver_data = HIDPP_QUIRK_HI_RES_SCROLL_X2121 },
> - { LDJ_DEVICE(0xb018), .driver_data = HIDPP_QUIRK_HI_RES_SCROLL_X2121 },
> - { LDJ_DEVICE(0xb01f), .driver_data = HIDPP_QUIRK_HI_RES_SCROLL_X2121 },
> - { /* Mouse Logitech MX Anywhere 2S */
> - LDJ_DEVICE(0x406a), .driver_data = HIDPP_QUIRK_HI_RES_SCROLL_X2121 },
> - { /* Mouse Logitech MX Master */
> - LDJ_DEVICE(0x4041), .driver_data = HIDPP_QUIRK_HI_RES_SCROLL_X2121 },
> - { LDJ_DEVICE(0x4060), .driver_data = HIDPP_QUIRK_HI_RES_SCROLL_X2121 },
> - { LDJ_DEVICE(0x4071), .driver_data = HIDPP_QUIRK_HI_RES_SCROLL_X2121 },
> - { /* Mouse Logitech MX Master 2S */
> - LDJ_DEVICE(0x4069), .driver_data = HIDPP_QUIRK_HI_RES_SCROLL_X2121 },
> - { /* Mouse Logitech MX Master 3 */
> - LDJ_DEVICE(0x4082), .driver_data = HIDPP_QUIRK_HI_RES_SCROLL_X2121 },
> - { /* Mouse Logitech Performance MX */
> - LDJ_DEVICE(0x101a), .driver_data = HIDPP_QUIRK_HI_RES_SCROLL_1P0 },
> + .driver_data = HIDPP_QUIRK_DELAYED_INIT | HIDPP_QUIRK_CLASS_M560 },
> { /* Keyboard logitech K400 */
> LDJ_DEVICE(0x4024),
> .driver_data = HIDPP_QUIRK_CLASS_K400 },
> @@ -4353,14 +4365,6 @@ static const struct hid_device_id hidpp_devices[] = {
> { /* MX5500 keyboard over Bluetooth */
> HID_BLUETOOTH_DEVICE(USB_VENDOR_ID_LOGITECH, 0xb30b),
> .driver_data = HIDPP_QUIRK_HIDPP_CONSUMER_VENDOR_KEYS },
> - { /* MX Master mouse over Bluetooth */
> - HID_BLUETOOTH_DEVICE(USB_VENDOR_ID_LOGITECH, 0xb012),
> - .driver_data = HIDPP_QUIRK_HI_RES_SCROLL_X2121 },
> - { HID_BLUETOOTH_DEVICE(USB_VENDOR_ID_LOGITECH, 0xb01e),
> - .driver_data = HIDPP_QUIRK_HI_RES_SCROLL_X2121 },
> - { /* MX Master 3 mouse over Bluetooth */
> - HID_BLUETOOTH_DEVICE(USB_VENDOR_ID_LOGITECH, 0xb023),
> - .driver_data = HIDPP_QUIRK_HI_RES_SCROLL_X2121 },
>
> { /* And try to enable HID++ for all the Logitech Bluetooth devices */
> HID_DEVICE(BUS_BLUETOOTH, HID_GROUP_ANY, USB_VENDOR_ID_LOGITECH, HID_ANY_ID) },
> --
> 2.37.3
>

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