483 lines
15 KiB
C
483 lines
15 KiB
C
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#include "furi_hal_version.h"
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#include "furi_hal_usb_i.h"
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#include "furi_hal_usb.h"
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#include "furi_hal_usb_hid.h"
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#include <furi.h>
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#include "usb.h"
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#include "usb_hid.h"
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#include "hid_usage_desktop.h"
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#include "hid_usage_button.h"
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#include "hid_usage_keyboard.h"
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#include "hid_usage_led.h"
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#define HID_EP_IN 0x81
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#define HID_EP_OUT 0x01
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#define HID_EP_SZ 0x10
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#define HID_KB_MAX_KEYS 6
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#define HID_CONSUMER_MAX_KEYS 2
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#define HID_PAGE_CONSUMER 0x0C
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#define HID_CONSUMER_CONTROL 0x01
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struct HidIadDescriptor {
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struct usb_iad_descriptor hid_iad;
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struct usb_interface_descriptor hid;
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struct usb_hid_descriptor hid_desc;
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struct usb_endpoint_descriptor hid_ep_in;
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struct usb_endpoint_descriptor hid_ep_out;
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};
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struct HidConfigDescriptor {
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struct usb_config_descriptor config;
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struct HidIadDescriptor iad_0;
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} __attribute__((packed));
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enum HidReportId {
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ReportIdKeyboard = 1,
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ReportIdMouse = 2,
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ReportIdConsumer = 3,
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};
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/* HID report: keyboard+mouse */
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static const uint8_t hid_report_desc[] = {
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HID_USAGE_PAGE(HID_PAGE_DESKTOP),
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HID_USAGE(HID_DESKTOP_KEYBOARD),
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HID_COLLECTION(HID_APPLICATION_COLLECTION),
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HID_REPORT_ID(ReportIdKeyboard),
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HID_USAGE_PAGE(HID_DESKTOP_KEYPAD),
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HID_USAGE_MINIMUM(HID_KEYBOARD_L_CTRL),
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HID_USAGE_MAXIMUM(HID_KEYBOARD_R_GUI),
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HID_LOGICAL_MINIMUM(0),
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HID_LOGICAL_MAXIMUM(1),
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HID_REPORT_SIZE(1),
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HID_REPORT_COUNT(8),
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HID_INPUT(HID_IOF_DATA | HID_IOF_VARIABLE | HID_IOF_ABSOLUTE),
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HID_REPORT_COUNT(1),
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HID_REPORT_SIZE(8),
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HID_INPUT(HID_IOF_CONSTANT | HID_IOF_VARIABLE | HID_IOF_ABSOLUTE),
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HID_USAGE_PAGE(HID_PAGE_LED),
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HID_REPORT_COUNT(8),
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HID_REPORT_SIZE(1),
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HID_USAGE_MINIMUM(1),
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HID_USAGE_MAXIMUM(8),
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HID_OUTPUT(HID_IOF_DATA | HID_IOF_VARIABLE | HID_IOF_ABSOLUTE),
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HID_REPORT_COUNT(HID_KB_MAX_KEYS),
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HID_REPORT_SIZE(8),
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HID_LOGICAL_MINIMUM(0),
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HID_LOGICAL_MAXIMUM(101),
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HID_USAGE_PAGE(HID_DESKTOP_KEYPAD),
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HID_USAGE_MINIMUM(0),
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HID_USAGE_MAXIMUM(101),
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HID_INPUT(HID_IOF_DATA | HID_IOF_ARRAY | HID_IOF_ABSOLUTE),
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HID_END_COLLECTION,
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HID_USAGE_PAGE(HID_PAGE_DESKTOP),
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HID_USAGE(HID_DESKTOP_MOUSE),
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HID_COLLECTION(HID_APPLICATION_COLLECTION),
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HID_USAGE(HID_DESKTOP_POINTER),
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HID_COLLECTION(HID_PHYSICAL_COLLECTION),
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HID_REPORT_ID(ReportIdMouse),
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HID_USAGE_PAGE(HID_PAGE_BUTTON),
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HID_USAGE_MINIMUM(1),
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HID_USAGE_MAXIMUM(3),
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HID_LOGICAL_MINIMUM(0),
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HID_LOGICAL_MAXIMUM(1),
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HID_REPORT_COUNT(3),
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HID_REPORT_SIZE(1),
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HID_INPUT(HID_IOF_DATA | HID_IOF_VARIABLE | HID_IOF_ABSOLUTE),
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HID_REPORT_SIZE(1),
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HID_REPORT_COUNT(5),
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HID_INPUT(HID_IOF_CONSTANT | HID_IOF_VARIABLE | HID_IOF_ABSOLUTE),
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HID_USAGE_PAGE(HID_PAGE_DESKTOP),
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HID_USAGE(HID_DESKTOP_X),
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HID_USAGE(HID_DESKTOP_Y),
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HID_USAGE(HID_DESKTOP_WHEEL),
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HID_LOGICAL_MINIMUM(-127),
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HID_LOGICAL_MAXIMUM(127),
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HID_REPORT_SIZE(8),
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HID_REPORT_COUNT(3),
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HID_INPUT(HID_IOF_DATA | HID_IOF_VARIABLE | HID_IOF_RELATIVE),
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HID_END_COLLECTION,
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HID_END_COLLECTION,
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HID_USAGE_PAGE(HID_PAGE_CONSUMER),
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HID_USAGE(HID_CONSUMER_CONTROL),
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HID_COLLECTION(HID_APPLICATION_COLLECTION),
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HID_REPORT_ID(ReportIdConsumer),
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HID_LOGICAL_MINIMUM(0),
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HID_RI_LOGICAL_MAXIMUM(16, 0x3FF),
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HID_USAGE_MINIMUM(0),
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HID_RI_USAGE_MAXIMUM(16, 0x3FF),
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HID_REPORT_COUNT(HID_CONSUMER_MAX_KEYS),
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HID_REPORT_SIZE(16),
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HID_INPUT(HID_IOF_DATA | HID_IOF_ARRAY | HID_IOF_ABSOLUTE),
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HID_END_COLLECTION,
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};
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static const struct usb_string_descriptor dev_manuf_desc = USB_STRING_DESC("Logitech");
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static const struct usb_string_descriptor dev_prod_desc = USB_STRING_DESC("USB Receiver");
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static const struct usb_string_descriptor dev_serial_desc = USB_STRING_DESC("1234567890");
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/* Device descriptor */
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static const struct usb_device_descriptor hid_device_desc = {
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.bLength = sizeof(struct usb_device_descriptor),
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.bDescriptorType = USB_DTYPE_DEVICE,
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.bcdUSB = VERSION_BCD(2, 0, 0),
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.bDeviceClass = USB_CLASS_IAD,
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.bDeviceSubClass = USB_SUBCLASS_IAD,
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.bDeviceProtocol = USB_PROTO_IAD,
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.bMaxPacketSize0 = USB_EP0_SIZE,
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.idVendor = 0x046d,
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.idProduct = 0xc529,
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.bcdDevice = VERSION_BCD(1, 0, 0),
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.iManufacturer = UsbDevManuf,
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.iProduct = UsbDevProduct,
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.iSerialNumber = UsbDevSerial,
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.bNumConfigurations = 1,
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};
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/* Device configuration descriptor */
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static const struct HidConfigDescriptor hid_cfg_desc = {
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.config =
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{
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.bLength = sizeof(struct usb_config_descriptor),
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.bDescriptorType = USB_DTYPE_CONFIGURATION,
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.wTotalLength = sizeof(struct HidConfigDescriptor),
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.bNumInterfaces = 1,
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.bConfigurationValue = 1,
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.iConfiguration = NO_DESCRIPTOR,
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.bmAttributes = USB_CFG_ATTR_RESERVED | USB_CFG_ATTR_SELFPOWERED,
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.bMaxPower = USB_CFG_POWER_MA(100),
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},
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.iad_0 =
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{
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.hid_iad =
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{
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.bLength = sizeof(struct usb_iad_descriptor),
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.bDescriptorType = USB_DTYPE_INTERFASEASSOC,
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.bFirstInterface = 0,
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.bInterfaceCount = 1,
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.bFunctionClass = USB_CLASS_PER_INTERFACE,
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.bFunctionSubClass = USB_SUBCLASS_NONE,
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.bFunctionProtocol = USB_PROTO_NONE,
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.iFunction = NO_DESCRIPTOR,
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},
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.hid =
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{
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.bLength = sizeof(struct usb_interface_descriptor),
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.bDescriptorType = USB_DTYPE_INTERFACE,
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.bInterfaceNumber = 0,
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.bAlternateSetting = 0,
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.bNumEndpoints = 2,
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.bInterfaceClass = USB_CLASS_HID,
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.bInterfaceSubClass = USB_HID_SUBCLASS_NONBOOT,
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.bInterfaceProtocol = USB_HID_PROTO_NONBOOT,
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.iInterface = NO_DESCRIPTOR,
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},
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.hid_desc =
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{
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.bLength = sizeof(struct usb_hid_descriptor),
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.bDescriptorType = USB_DTYPE_HID,
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.bcdHID = VERSION_BCD(1, 0, 0),
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.bCountryCode = USB_HID_COUNTRY_NONE,
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.bNumDescriptors = 1,
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.bDescriptorType0 = USB_DTYPE_HID_REPORT,
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.wDescriptorLength0 = sizeof(hid_report_desc),
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},
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.hid_ep_in =
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{
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.bLength = sizeof(struct usb_endpoint_descriptor),
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.bDescriptorType = USB_DTYPE_ENDPOINT,
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.bEndpointAddress = HID_EP_IN,
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.bmAttributes = USB_EPTYPE_INTERRUPT,
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.wMaxPacketSize = HID_EP_SZ,
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.bInterval = 10,
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},
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.hid_ep_out =
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{
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.bLength = sizeof(struct usb_endpoint_descriptor),
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.bDescriptorType = USB_DTYPE_ENDPOINT,
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.bEndpointAddress = HID_EP_OUT,
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.bmAttributes = USB_EPTYPE_INTERRUPT,
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.wMaxPacketSize = HID_EP_SZ,
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.bInterval = 10,
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},
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},
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};
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struct HidReportMouse {
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uint8_t report_id;
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uint8_t btn;
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int8_t x;
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int8_t y;
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int8_t wheel;
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} __attribute__((packed));
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struct HidReportKB {
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uint8_t report_id;
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uint8_t mods;
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uint8_t reserved;
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uint8_t btn[HID_KB_MAX_KEYS];
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} __attribute__((packed));
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struct HidReportConsumer {
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uint8_t report_id;
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uint16_t btn[HID_CONSUMER_MAX_KEYS];
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} __attribute__((packed));
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struct HidReportLED {
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uint8_t report_id;
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uint8_t led_state;
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} __attribute__((packed));
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static struct HidReport {
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struct HidReportKB keyboard;
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struct HidReportMouse mouse;
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struct HidReportConsumer consumer;
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} __attribute__((packed)) hid_report;
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static void hid_init(usbd_device* dev, UsbInterface* intf);
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static void hid_deinit(usbd_device* dev);
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static void hid_on_wakeup(usbd_device* dev);
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static void hid_on_suspend(usbd_device* dev);
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static bool hid_send_report(uint8_t report_id);
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static usbd_respond hid_ep_config(usbd_device* dev, uint8_t cfg);
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static usbd_respond hid_control(usbd_device* dev, usbd_ctlreq* req, usbd_rqc_callback* callback);
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static usbd_device* usb_dev;
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static osSemaphoreId_t hid_semaphore = NULL;
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static bool hid_connected = false;
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static HidStateCallback callback;
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static void* cb_ctx;
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static uint8_t led_state;
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bool furi_hal_hid_is_connected() {
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return hid_connected;
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}
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uint8_t furi_hal_hid_get_led_state() {
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return led_state;
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}
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void furi_hal_hid_set_state_callback(HidStateCallback cb, void* ctx) {
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if(callback != NULL) {
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if(hid_connected == true) callback(false, cb_ctx);
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}
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callback = cb;
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cb_ctx = ctx;
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if(callback != NULL) {
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if(hid_connected == true) callback(true, cb_ctx);
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}
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}
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bool furi_hal_hid_kb_press(uint16_t button) {
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for(uint8_t key_nb = 0; key_nb < HID_KB_MAX_KEYS; key_nb++) {
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if(hid_report.keyboard.btn[key_nb] == 0) {
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hid_report.keyboard.btn[key_nb] = button & 0xFF;
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break;
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}
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}
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hid_report.keyboard.mods |= (button >> 8);
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return hid_send_report(ReportIdKeyboard);
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}
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bool furi_hal_hid_kb_release(uint16_t button) {
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for(uint8_t key_nb = 0; key_nb < HID_KB_MAX_KEYS; key_nb++) {
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if(hid_report.keyboard.btn[key_nb] == (button & 0xFF)) {
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hid_report.keyboard.btn[key_nb] = 0;
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break;
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}
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}
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hid_report.keyboard.mods &= ~(button >> 8);
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return hid_send_report(ReportIdKeyboard);
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}
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bool furi_hal_hid_kb_release_all() {
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for(uint8_t key_nb = 0; key_nb < HID_KB_MAX_KEYS; key_nb++) {
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hid_report.keyboard.btn[key_nb] = 0;
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}
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hid_report.keyboard.mods = 0;
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return hid_send_report(ReportIdKeyboard);
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}
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bool furi_hal_hid_mouse_move(int8_t dx, int8_t dy) {
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hid_report.mouse.x = dx;
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hid_report.mouse.y = dy;
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bool state = hid_send_report(ReportIdMouse);
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hid_report.mouse.x = 0;
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hid_report.mouse.y = 0;
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return state;
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}
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bool furi_hal_hid_mouse_press(uint8_t button) {
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hid_report.mouse.btn |= button;
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return hid_send_report(ReportIdMouse);
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}
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bool furi_hal_hid_mouse_release(uint8_t button) {
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hid_report.mouse.btn &= ~button;
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return hid_send_report(ReportIdMouse);
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}
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bool furi_hal_hid_mouse_scroll(int8_t delta) {
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hid_report.mouse.wheel = delta;
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bool state = hid_send_report(ReportIdMouse);
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hid_report.mouse.wheel = 0;
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return state;
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}
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bool furi_hal_hid_consumer_key_press(uint16_t button) {
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for(uint8_t key_nb = 0; key_nb < HID_CONSUMER_MAX_KEYS; key_nb++) {
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if(hid_report.consumer.btn[key_nb] == 0) {
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hid_report.consumer.btn[key_nb] = button;
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break;
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||
|
|
}
|
||
|
|
}
|
||
|
|
return hid_send_report(ReportIdConsumer);
|
||
|
|
}
|
||
|
|
|
||
|
|
bool furi_hal_hid_consumer_key_release(uint16_t button) {
|
||
|
|
for(uint8_t key_nb = 0; key_nb < HID_CONSUMER_MAX_KEYS; key_nb++) {
|
||
|
|
if(hid_report.consumer.btn[key_nb] == button) {
|
||
|
|
hid_report.consumer.btn[key_nb] = 0;
|
||
|
|
break;
|
||
|
|
}
|
||
|
|
}
|
||
|
|
return hid_send_report(ReportIdConsumer);
|
||
|
|
}
|
||
|
|
|
||
|
|
UsbInterface usb_hid = {
|
||
|
|
.init = hid_init,
|
||
|
|
.deinit = hid_deinit,
|
||
|
|
.wakeup = hid_on_wakeup,
|
||
|
|
.suspend = hid_on_suspend,
|
||
|
|
|
||
|
|
.dev_descr = (struct usb_device_descriptor*)&hid_device_desc,
|
||
|
|
|
||
|
|
.str_manuf_descr = (void*)&dev_manuf_desc,
|
||
|
|
.str_prod_descr = (void*)&dev_prod_desc,
|
||
|
|
.str_serial_descr = (void*)&dev_serial_desc,
|
||
|
|
|
||
|
|
.cfg_descr = (void*)&hid_cfg_desc,
|
||
|
|
};
|
||
|
|
|
||
|
|
static void hid_init(usbd_device* dev, UsbInterface* intf) {
|
||
|
|
if(hid_semaphore == NULL) hid_semaphore = osSemaphoreNew(1, 1, NULL);
|
||
|
|
usb_dev = dev;
|
||
|
|
hid_report.keyboard.report_id = ReportIdKeyboard;
|
||
|
|
hid_report.mouse.report_id = ReportIdMouse;
|
||
|
|
hid_report.consumer.report_id = ReportIdConsumer;
|
||
|
|
|
||
|
|
usbd_reg_config(dev, hid_ep_config);
|
||
|
|
usbd_reg_control(dev, hid_control);
|
||
|
|
|
||
|
|
usbd_connect(dev, true);
|
||
|
|
}
|
||
|
|
|
||
|
|
static void hid_deinit(usbd_device* dev) {
|
||
|
|
usbd_reg_config(dev, NULL);
|
||
|
|
usbd_reg_control(dev, NULL);
|
||
|
|
}
|
||
|
|
|
||
|
|
static void hid_on_wakeup(usbd_device* dev) {
|
||
|
|
if(hid_connected == false) {
|
||
|
|
hid_connected = true;
|
||
|
|
if(callback != NULL) callback(true, cb_ctx);
|
||
|
|
}
|
||
|
|
}
|
||
|
|
|
||
|
|
static void hid_on_suspend(usbd_device* dev) {
|
||
|
|
if(hid_connected == true) {
|
||
|
|
hid_connected = false;
|
||
|
|
osSemaphoreRelease(hid_semaphore);
|
||
|
|
if(callback != NULL) callback(false, cb_ctx);
|
||
|
|
}
|
||
|
|
}
|
||
|
|
|
||
|
|
static bool hid_send_report(uint8_t report_id) {
|
||
|
|
if((hid_semaphore == NULL) || (hid_connected == false)) return false;
|
||
|
|
|
||
|
|
furi_check(osSemaphoreAcquire(hid_semaphore, osWaitForever) == osOK);
|
||
|
|
if(hid_connected == true) {
|
||
|
|
if(report_id == ReportIdKeyboard)
|
||
|
|
usbd_ep_write(usb_dev, HID_EP_IN, &hid_report.keyboard, sizeof(hid_report.keyboard));
|
||
|
|
else if(report_id == ReportIdMouse)
|
||
|
|
usbd_ep_write(usb_dev, HID_EP_IN, &hid_report.mouse, sizeof(hid_report.mouse));
|
||
|
|
else if(report_id == ReportIdConsumer)
|
||
|
|
usbd_ep_write(usb_dev, HID_EP_IN, &hid_report.consumer, sizeof(hid_report.consumer));
|
||
|
|
return true;
|
||
|
|
}
|
||
|
|
return false;
|
||
|
|
}
|
||
|
|
|
||
|
|
static void hid_txrx_ep_callback(usbd_device* dev, uint8_t event, uint8_t ep) {
|
||
|
|
if(event == usbd_evt_eptx) {
|
||
|
|
osSemaphoreRelease(hid_semaphore);
|
||
|
|
} else {
|
||
|
|
struct HidReportLED leds;
|
||
|
|
usbd_ep_read(usb_dev, ep, &leds, 2);
|
||
|
|
led_state = leds.led_state;
|
||
|
|
}
|
||
|
|
}
|
||
|
|
|
||
|
|
/* Configure endpoints */
|
||
|
|
static usbd_respond hid_ep_config(usbd_device* dev, uint8_t cfg) {
|
||
|
|
switch(cfg) {
|
||
|
|
case 0:
|
||
|
|
/* deconfiguring device */
|
||
|
|
usbd_ep_deconfig(dev, HID_EP_OUT);
|
||
|
|
usbd_ep_deconfig(dev, HID_EP_IN);
|
||
|
|
usbd_reg_endpoint(dev, HID_EP_OUT, 0);
|
||
|
|
usbd_reg_endpoint(dev, HID_EP_IN, 0);
|
||
|
|
return usbd_ack;
|
||
|
|
case 1:
|
||
|
|
/* configuring device */
|
||
|
|
usbd_ep_config(dev, HID_EP_IN, USB_EPTYPE_INTERRUPT, HID_EP_SZ);
|
||
|
|
usbd_ep_config(dev, HID_EP_OUT, USB_EPTYPE_INTERRUPT, HID_EP_SZ);
|
||
|
|
usbd_reg_endpoint(dev, HID_EP_IN, hid_txrx_ep_callback);
|
||
|
|
usbd_reg_endpoint(dev, HID_EP_OUT, hid_txrx_ep_callback);
|
||
|
|
usbd_ep_write(dev, HID_EP_IN, 0, 0);
|
||
|
|
return usbd_ack;
|
||
|
|
default:
|
||
|
|
return usbd_fail;
|
||
|
|
}
|
||
|
|
}
|
||
|
|
|
||
|
|
/* Control requests handler */
|
||
|
|
static usbd_respond hid_control(usbd_device* dev, usbd_ctlreq* req, usbd_rqc_callback* callback) {
|
||
|
|
/* HID control requests */
|
||
|
|
if(((USB_REQ_RECIPIENT | USB_REQ_TYPE) & req->bmRequestType) ==
|
||
|
|
(USB_REQ_INTERFACE | USB_REQ_CLASS) &&
|
||
|
|
req->wIndex == 0) {
|
||
|
|
switch(req->bRequest) {
|
||
|
|
case USB_HID_SETIDLE:
|
||
|
|
return usbd_ack;
|
||
|
|
case USB_HID_GETREPORT:
|
||
|
|
dev->status.data_ptr = &hid_report;
|
||
|
|
dev->status.data_count = sizeof(hid_report);
|
||
|
|
return usbd_ack;
|
||
|
|
default:
|
||
|
|
return usbd_fail;
|
||
|
|
}
|
||
|
|
}
|
||
|
|
if(((USB_REQ_RECIPIENT | USB_REQ_TYPE) & req->bmRequestType) ==
|
||
|
|
(USB_REQ_INTERFACE | USB_REQ_STANDARD) &&
|
||
|
|
req->wIndex == 0 && req->bRequest == USB_STD_GET_DESCRIPTOR) {
|
||
|
|
switch(req->wValue >> 8) {
|
||
|
|
case USB_DTYPE_HID:
|
||
|
|
dev->status.data_ptr = (uint8_t*)&(hid_cfg_desc.iad_0.hid_desc);
|
||
|
|
dev->status.data_count = sizeof(hid_cfg_desc.iad_0.hid_desc);
|
||
|
|
return usbd_ack;
|
||
|
|
case USB_DTYPE_HID_REPORT:
|
||
|
|
dev->status.data_ptr = (uint8_t*)hid_report_desc;
|
||
|
|
dev->status.data_count = sizeof(hid_report_desc);
|
||
|
|
return usbd_ack;
|
||
|
|
default:
|
||
|
|
return usbd_fail;
|
||
|
|
}
|
||
|
|
}
|
||
|
|
return usbd_fail;
|
||
|
|
}
|