From: Hans de Goede Date: Sat, 20 Apr 2019 11:22:14 +0000 (+0200) Subject: HID: logitech-hidpp: make hidpp10_set_register_bit a bit more generic X-Git-Url: http://git.lede-project.org./?a=commitdiff_plain;h=35839f77238bccb695696bb390732339d53b8062;p=openwrt%2Fstaging%2Fblogic.git HID: logitech-hidpp: make hidpp10_set_register_bit a bit more generic Make hidpp10_set_register_bit() take a mask and value for the register byte being changed, rather then making it only set a single bit. While at it also at defines for the bits which we will be using. Signed-off-by: Hans de Goede Signed-off-by: Benjamin Tissoires --- diff --git a/drivers/hid/hid-logitech-hidpp.c b/drivers/hid/hid-logitech-hidpp.c index 5ef3f76c3f66..2b769766e158 100644 --- a/drivers/hid/hid-logitech-hidpp.c +++ b/drivers/hid/hid-logitech-hidpp.c @@ -491,14 +491,16 @@ static void hidpp_scroll_counter_handle_scroll(struct input_dev *input_dev, #define HIDPP_GET_LONG_REGISTER 0x83 /** - * hidpp10_set_register_bit() - Sets a single bit in a HID++ 1.0 register. + * hidpp10_set_register - Modify a HID++ 1.0 register. * @hidpp_dev: the device to set the register on. * @register_address: the address of the register to modify. * @byte: the byte of the register to modify. Should be less than 3. + * @mask: mask of the bits to modify + * @value: new values for the bits in mask * Return: 0 if successful, otherwise a negative error code. */ -static int hidpp10_set_register_bit(struct hidpp_device *hidpp_dev, - u8 register_address, u8 byte, u8 bit) +static int hidpp10_set_register(struct hidpp_device *hidpp_dev, + u8 register_address, u8 byte, u8 mask, u8 value) { struct hidpp_report response; int ret; @@ -514,7 +516,8 @@ static int hidpp10_set_register_bit(struct hidpp_device *hidpp_dev, memcpy(params, response.rap.params, 3); - params[byte] |= BIT(bit); + params[byte] &= ~mask; + params[byte] |= value & mask; return hidpp_send_rap_command_sync(hidpp_dev, REPORT_ID_HIDPP_SHORT, @@ -523,20 +526,28 @@ static int hidpp10_set_register_bit(struct hidpp_device *hidpp_dev, params, 3, &response); } - -#define HIDPP_REG_GENERAL 0x00 +#define HIDPP_REG_ENABLE_REPORTS 0x00 +#define HIDPP_ENABLE_CONSUMER_REPORT BIT(0) +#define HIDPP_ENABLE_WHEEL_REPORT BIT(2) +#define HIDPP_ENABLE_MOUSE_EXTRA_BTN_REPORT BIT(3) +#define HIDPP_ENABLE_BAT_REPORT BIT(4) +#define HIDPP_ENABLE_HWHEEL_REPORT BIT(5) static int hidpp10_enable_battery_reporting(struct hidpp_device *hidpp_dev) { - return hidpp10_set_register_bit(hidpp_dev, HIDPP_REG_GENERAL, 0, 4); + return hidpp10_set_register(hidpp_dev, HIDPP_REG_ENABLE_REPORTS, 0, + HIDPP_ENABLE_BAT_REPORT, HIDPP_ENABLE_BAT_REPORT); } #define HIDPP_REG_FEATURES 0x01 +#define HIDPP_ENABLE_SPECIAL_BUTTON_FUNC BIT(1) +#define HIDPP_ENABLE_FAST_SCROLL BIT(6) /* On HID++ 1.0 devices, high-res scroll was called "scrolling acceleration". */ static int hidpp10_enable_scrolling_acceleration(struct hidpp_device *hidpp_dev) { - return hidpp10_set_register_bit(hidpp_dev, HIDPP_REG_FEATURES, 0, 6); + return hidpp10_set_register(hidpp_dev, HIDPP_REG_FEATURES, 0, + HIDPP_ENABLE_FAST_SCROLL, HIDPP_ENABLE_FAST_SCROLL); } #define HIDPP_REG_BATTERY_STATUS 0x07