From f54bc61cf7236db84939ca8827ac89737d79ef24 Mon Sep 17 00:00:00 2001 From: Benjamin Tissoires Date: Thu, 24 Jul 2014 12:52:00 -0700 Subject: [PATCH] Input: wacom - include and use linux/hid.h The current wacom code redefines constants that are already in linux/hid.h This patch includes the official implementation and use it accross the code. There is a conflict with HID_USAGE and others at the same level: - in the wacom.ko implementation, those are the #define regarding the value of the field in the report descriptor - in the hid.h, those are bitmask So add HDESC_ in their current definition. Also, the struct hid_descriptor slightly differs from the linux/hid.h point of view, so mark it as custom for this driver. Signed-off-by: Benjamin Tissoires Reviewed-by: Jason Gerecke Tested-by: Jason Gerecke Signed-off-by: Dmitry Torokhov --- drivers/input/tablet/wacom_sys.c | 53 +++++++++++++------------------- 1 file changed, 22 insertions(+), 31 deletions(-) diff --git a/drivers/input/tablet/wacom_sys.c b/drivers/input/tablet/wacom_sys.c index dd0dbc250c94..c34791e7f0b9 100644 --- a/drivers/input/tablet/wacom_sys.c +++ b/drivers/input/tablet/wacom_sys.c @@ -13,28 +13,19 @@ #include "wacom_wac.h" #include "wacom.h" +#include /* defines to get HID report descriptor */ #define HID_DEVICET_HID (USB_TYPE_CLASS | 0x01) #define HID_DEVICET_REPORT (USB_TYPE_CLASS | 0x02) -#define HID_USAGE_UNDEFINED 0x00 -#define HID_USAGE_PAGE 0x05 -#define HID_USAGE_PAGE_DIGITIZER 0x0d -#define HID_USAGE_PAGE_DESKTOP 0x01 -#define HID_USAGE 0x09 -#define HID_USAGE_X ((HID_USAGE_PAGE_DESKTOP << 16) | 0x30) -#define HID_USAGE_Y ((HID_USAGE_PAGE_DESKTOP << 16) | 0x31) -#define HID_USAGE_PRESSURE ((HID_USAGE_PAGE_DIGITIZER << 16) | 0x30) -#define HID_USAGE_X_TILT ((HID_USAGE_PAGE_DIGITIZER << 16) | 0x3d) -#define HID_USAGE_Y_TILT ((HID_USAGE_PAGE_DIGITIZER << 16) | 0x3e) -#define HID_USAGE_FINGER ((HID_USAGE_PAGE_DIGITIZER << 16) | 0x22) -#define HID_USAGE_STYLUS ((HID_USAGE_PAGE_DIGITIZER << 16) | 0x20) -#define HID_USAGE_CONTACTMAX ((HID_USAGE_PAGE_DIGITIZER << 16) | 0x55) -#define HID_COLLECTION 0xa1 -#define HID_COLLECTION_LOGICAL 0x02 -#define HID_COLLECTION_END 0xc0 - -struct hid_descriptor { +#define HID_HDESC_USAGE_UNDEFINED 0x00 +#define HID_HDESC_USAGE_PAGE 0x05 +#define HID_HDESC_USAGE 0x09 +#define HID_HDESC_COLLECTION 0xa1 +#define HID_HDESC_COLLECTION_LOGICAL 0x02 +#define HID_HDESC_COLLECTION_END 0xc0 + +struct wac_hid_descriptor { struct usb_descriptor_header header; __le16 bcdHID; u8 bCountryCode; @@ -301,7 +292,7 @@ static void wacom_retrieve_report_data(struct usb_interface *intf, * this after returning from this function. */ static int wacom_parse_hid(struct usb_interface *intf, - struct hid_descriptor *hid_desc, + struct wac_hid_descriptor *hid_desc, struct wacom_features *features) { struct usb_device *dev = interface_to_usbdev(intf); @@ -334,14 +325,14 @@ static int wacom_parse_hid(struct usb_interface *intf, for (i = 0; i < hid_desc->wDescriptorLength; i++) { switch (report[i]) { - case HID_USAGE_PAGE: + case HID_HDESC_USAGE_PAGE: page = report[i + 1]; i++; break; - case HID_USAGE: + case HID_HDESC_USAGE: switch (page << 16 | report[i + 1]) { - case HID_USAGE_X: + case HID_GD_X: if (finger) { features->device_type = BTN_TOOL_FINGER; /* touch device at least supports one touch point */ @@ -420,7 +411,7 @@ static int wacom_parse_hid(struct usb_interface *intf, } break; - case HID_USAGE_Y: + case HID_GD_Y: if (finger) { switch (features->type) { case TABLETPC2FG: @@ -472,7 +463,7 @@ static int wacom_parse_hid(struct usb_interface *intf, } break; - case HID_USAGE_FINGER: + case HID_DG_FINGER: finger = 1; i++; break; @@ -482,19 +473,19 @@ static int wacom_parse_hid(struct usb_interface *intf, * X/Y values and some cases of invalid Digitizer X/Y * values commonly reported. */ - case HID_USAGE_STYLUS: + case HID_DG_STYLUS: pen = 1; i++; break; - case HID_USAGE_CONTACTMAX: + case HID_DG_CONTACTMAX: /* leave touch_max as is if predefined */ if (!features->touch_max) wacom_retrieve_report_data(intf, features); i++; break; - case HID_USAGE_PRESSURE: + case HID_DG_TIPPRESSURE: if (pen) { features->pressure_max = get_unaligned_le16(&report[i + 3]); @@ -504,15 +495,15 @@ static int wacom_parse_hid(struct usb_interface *intf, } break; - case HID_COLLECTION_END: + case HID_HDESC_COLLECTION_END: /* reset UsagePage and Finger */ finger = page = 0; break; - case HID_COLLECTION: + case HID_HDESC_COLLECTION: i++; switch (report[i]) { - case HID_COLLECTION_LOGICAL: + case HID_HDESC_COLLECTION_LOGICAL: i += wacom_parse_logical_collection(&report[i], features); break; @@ -585,7 +576,7 @@ static int wacom_retrieve_hid_descriptor(struct usb_interface *intf, { int error = 0; struct usb_host_interface *interface = intf->cur_altsetting; - struct hid_descriptor *hid_desc; + struct wac_hid_descriptor *hid_desc; /* default features */ features->device_type = BTN_TOOL_PEN; -- 2.30.2