Add another HID interface using the consumer HID class for media keys. Resolves #32.

2017-03-03 20:21:05 +01:00
parent 1aae668ed5
commit c887b5e309
24 changed files with 604 additions and 344 deletions
--- a/right/src/usb_interfaces/usb_interface_basic_keyboard.c
+++ b/right/src/usb_interfaces/usb_interface_basic_keyboard.c
@@ -0,0 +1,112 @@
+#include "main.h"
+#include "action.h"
+#include "fsl_port.h"
+#include "usb_api.h"
+#include "usb_composite_device.h"
+#include "peripherials/test_led.h"
+#include "fsl_i2c.h"
+#include "i2c.h"
+#include "i2c_addresses.h"
+
+static usb_device_endpoint_struct_t UsbBasicKeyboardEndpoints[USB_BASIC_KEYBOARD_ENDPOINT_COUNT] = {{
+    USB_BASIC_KEYBOARD_ENDPOINT_INDEX | (USB_IN << USB_DESCRIPTOR_ENDPOINT_ADDRESS_DIRECTION_SHIFT),
+    USB_ENDPOINT_INTERRUPT,
+    USB_BASIC_KEYBOARD_INTERRUPT_IN_PACKET_SIZE,
+}};
+
+static usb_device_interface_struct_t UsbBasicKeyboardInterface[] = {{
+    USB_INTERFACE_ALTERNATE_SETTING_NONE,
+    {USB_BASIC_KEYBOARD_ENDPOINT_COUNT, UsbBasicKeyboardEndpoints},
+    NULL,
+}};
+
+static usb_device_interfaces_struct_t UsbBasicKeyboardInterfaces[USB_BASIC_KEYBOARD_INTERFACE_COUNT] = {{
+    USB_CLASS_HID,
+    USB_HID_SUBCLASS_BOOT,
+    USB_HID_PROTOCOL_KEYBOARD,
+    USB_BASIC_KEYBOARD_INTERFACE_INDEX,
+    UsbBasicKeyboardInterface,
+    sizeof(UsbBasicKeyboardInterface) / sizeof(usb_device_interfaces_struct_t),
+}};
+
+static usb_device_interface_list_t UsbBasicKeyboardInterfaceList[USB_DEVICE_CONFIGURATION_COUNT] = {{
+    USB_BASIC_KEYBOARD_INTERFACE_COUNT,
+    UsbBasicKeyboardInterfaces,
+}};
+
+usb_device_class_struct_t UsbBasicKeyboardClass = {
+    UsbBasicKeyboardInterfaceList,
+    kUSB_DeviceClassTypeHid,
+    USB_DEVICE_CONFIGURATION_COUNT,
+};
+
+static usb_basic_keyboard_report_t usbBasicKeyboardReports[2];
+usb_basic_keyboard_report_t* ActiveUsbBasicKeyboardReport = usbBasicKeyboardReports;
+bool IsUsbBasicKeyboardReportSent = false;
+
+usb_basic_keyboard_report_t* getInactiveUsbBasicKeyboardReport()
+{
+    return ActiveUsbBasicKeyboardReport == usbBasicKeyboardReports ? usbBasicKeyboardReports+1 : usbBasicKeyboardReports;
+}
+
+void SwitchActiveUsbBasicKeyboardReport()
+{
+    ActiveUsbBasicKeyboardReport = getInactiveUsbBasicKeyboardReport();
+}
+
+void ResetActiveUsbBasicKeyboardReport()
+{
+    bzero(ActiveUsbBasicKeyboardReport, USB_BASIC_KEYBOARD_REPORT_LENGTH);
+}
+
+static usb_status_t UsbBasicKeyboardAction(void)
+{
+    usb_status_t status = USB_DeviceHidSend(
+        UsbCompositeDevice.basicKeyboardHandle, USB_BASIC_KEYBOARD_ENDPOINT_INDEX,
+        (uint8_t*)getInactiveUsbBasicKeyboardReport(), USB_BASIC_KEYBOARD_REPORT_LENGTH);
+    IsUsbBasicKeyboardReportSent = true;
+    return status;
+}
+
+usb_status_t UsbBasicKeyboardCallback(class_handle_t handle, uint32_t event, void *param)
+{
+    usb_status_t error = kStatus_USB_Error;
+
+    switch (event) {
+        case kUSB_DeviceHidEventSendResponse:
+            if (UsbCompositeDevice.attach) {
+                return UsbBasicKeyboardAction();
+            }
+            break;
+        case kUSB_DeviceHidEventGetReport:
+        case kUSB_DeviceHidEventSetReport:
+        case kUSB_DeviceHidEventRequestReportBuffer:
+            error = kStatus_USB_InvalidRequest;
+            break;
+        case kUSB_DeviceHidEventGetIdle:
+        case kUSB_DeviceHidEventGetProtocol:
+        case kUSB_DeviceHidEventSetIdle:
+        case kUSB_DeviceHidEventSetProtocol:
+            break;
+        default:
+            break;
+    }
+
+    return error;
+}
+
+usb_status_t UsbBasicKeyboardSetConfiguration(class_handle_t handle, uint8_t configuration)
+{
+    if (USB_COMPOSITE_CONFIGURATION_INDEX == configuration) {
+        return UsbBasicKeyboardAction();
+    }
+    return kStatus_USB_Error;
+}
+
+usb_status_t UsbBasicKeyboardSetInterface(class_handle_t handle, uint8_t interface, uint8_t alternateSetting)
+{
+    if (USB_BASIC_KEYBOARD_INTERFACE_INDEX == interface) {
+        return UsbBasicKeyboardAction();
+    }
+    return kStatus_USB_Error;
+}