diff --git a/samples/demo_device_hid_keyboard_rtos.c b/samples/demo_device_hid_keyboard_rtos.c new file mode 100644 index 00000000..b80faa6c --- /dev/null +++ b/samples/demo_device_hid_keyboard_rtos.c @@ -0,0 +1,579 @@ +/*************************************************************************** + * Copyright (c) 2025-present Eclipse ThreadX Contributors + * + * This program and the accompanying materials are made available under the + * terms of the MIT License which is available at + * https://opensource.org/licenses/MIT. + * + * + * SPDX-License-Identifier: MIT + **************************************************************************/ + + +/**************************************************************************/ +/**************************************************************************/ +/** */ +/** Overview */ +/** */ +/** This example works as a USB HID device. It will appear as a USB */ +/** keyboard device on PC. This application demo is running in rtos */ +/** mode. */ +/** */ +/** Note */ +/** */ +/** This demonstration is not optimized, to optimize application user */ +/** sould configuer related class flag in ux_user.h and adjust */ +/** UX_DEVICE_MEMORY_STACK_SIZE */ +/** */ +/** */ +/** AUTHOR */ +/** */ +/** Mohamed AYED */ +/** */ +/**************************************************************************/ +/**************************************************************************/ + +#include "tx_api.h" +#include "ux_api.h" +#include "ux_device_class_hid.h" + +#ifndef UX_DEVICE_SIDE_ONLY +#error UX_DEVICE_SIDE_ONLY must be defined +#endif + +#if (UX_DEVICE_CLASS_HID_EVENT_BUFFER_LENGTH < 8) +#error HID Keyboard event buffer length must be more then 8 +#endif + + +/* Defined the keyboard will act as boot device. */ +/* define DEMO_HID_BOOT_DEVICE */ + +/**************************************************/ +/** Define constants */ +/**************************************************/ +#define UX_DEVICE_MEMORY_STACK_SIZE (7*1024) +#define UX_DEMO_THREAD_STACK_SIZE (1*1024) + +#define UX_DEMO_HID_DEVICE_VID 0x070A +#define UX_DEMO_HID_DEVICE_PID 0x4090 +#define UX_DEMO_MAX_EP0_SIZE 0x40U +#define UX_DEMO_HID_CONFIG_DESC_SIZE 0x22U + +#define UX_DEMO_BCD_USB 0x0200 + +#define UX_DEMO_BCD_HID 0x0110 + +#define UX_DEMO_HID_ENDPOINT_SIZE 0x08 +#define UX_DEMO_HID_ENDPOINT_ADDRESS 0x81 +#define UX_DEMO_HID_ENDPOINT_BINTERVAL 0x08 + +#ifdef DEMO_HID_BOOT_DEVICE +#define UX_DEMO_HID_SUBCLASS 0x01 +#else /* DEMO_HID_BOOT_DEVICE */ +#define UX_DEMO_HID_SUBCLASS 0x00 +#endif + +#define UX_HID_NUM_LOCK_MASK 0x01 +#define UX_HID_CAPS_LOCK_MASK 0x02 + +/**************************************************/ +/** usbx device hid demo callbacks */ +/**************************************************/ +VOID ux_demo_device_hid_instance_activate(VOID *hid_instance); +VOID ux_demo_device_hid_instance_deactivate(VOID *hid_instance); +UINT ux_demo_device_hid_callback(UX_SLAVE_CLASS_HID *hid_instance, UX_SLAVE_CLASS_HID_EVENT *hid_event); +UINT ux_demo_device_hid_get_callback(UX_SLAVE_CLASS_HID *hid_instance, UX_SLAVE_CLASS_HID_EVENT *hid_event); + +/**************************************************/ +/** usbx device hid demo thread */ +/**************************************************/ +VOID ux_demo_device_hid_thread_entry(ULONG thread_input); + +/**************************************************/ +/** usbx application initialization with RTOS */ +/**************************************************/ +VOID tx_application_define(VOID *first_unused_memory); + +/**************************************************/ +/** usbx device hid keyboard instance */ +/**************************************************/ +UX_SLAVE_CLASS_HID *hid_keyboard; + +/**************************************************/ +/** usbx device hid keyboard */ +/**************************************************/ +ULONG num_lock_flag = UX_FALSE; +ULONG caps_lock_flag = UX_FALSE; + +/**************************************************/ +/** thread object */ +/**************************************************/ +static TX_THREAD ux_hid_thread; +static ULONG ux_hid_thread_stack[UX_DEMO_THREAD_STACK_SIZE / sizeof(ULONG)]; + +/**************************************************/ +/** usbx callback error */ +/**************************************************/ +static VOID ux_demo_error_callback(UINT system_level, UINT system_context, UINT error_code); + +static CHAR ux_system_memory_pool[UX_DEVICE_MEMORY_STACK_SIZE]; + +#ifndef EXTERNAL_MAIN +extern int board_setup(void); +#endif /* EXTERNAL_MAIN */ +extern int usb_device_dcd_initialize(void *param); + +/**************************************************/ +/** HID Report descriptor */ +/**************************************************/ +UCHAR hid_keyboard_report[] = { + 0x05, 0x01, // USAGE_PAGE (Generic Desktop) + 0x09, 0x06, // USAGE (Keyboard) + 0xa1, 0x01, // COLLECTION (Application) + + /* Modifier Keys (Shift, Ctrl, Alt, GUI) */ + 0x05, 0x07, // USAGE_PAGE (Key Codes) + 0x19, 0xE0, // USAGE_MINIMUM (Left Control) + 0x29, 0xE7, // USAGE_MAXIMUM (Right GUI) + 0x15, 0x00, // LOGICAL_MINIMUM (0) + 0x25, 0x01, // LOGICAL_MAXIMUM (1) + 0x75, 0x01, // REPORT_SIZE (1) + 0x95, 0x08, // REPORT_COUNT (8) + 0x81, 0x02, // INPUT (Data, Variable, Absolute) + + /* Reserved byte */ + 0x75, 0x08, // REPORT_SIZE (8) + 0x95, 0x01, // REPORT_COUNT (1) + 0x81, 0x01, // INPUT (Constant) + + /* Key Array (6-Key Rollover) */ + 0x05, 0x07, // USAGE_PAGE (Key Codes) + 0x19, 0x00, // USAGE_MINIMUM (0) + 0x29, 0x65, // USAGE_MAXIMUM (101) + 0x15, 0x00, // LOGICAL_MINIMUM (0) + 0x25, 0x65, // LOGICAL_MAXIMUM (101) + 0x75, 0x08, // REPORT_SIZE (8) + 0x95, 0x06, // REPORT_COUNT (6) + 0x81, 0x00, // INPUT (Data, Array) - Key array + + /* LED Output (Caps Lock, Num Lock, etc.) */ + 0x05, 0x08, // Usage Page (LEDs) + 0x19, 0x01, // Usage Minimum (Num Lock) + 0x29, 0x05, // Usage Maximum (Kana) + 0x15, 0x00, // Logical Minimum (0) + 0x25, 0x01, // Logical Maximum (1) + 0x75, 0x01, // Report Size (1) + 0x95, 0x05, // Report Count (5) + 0x91, 0x02, // OUTPUT (Data, Variable, Absolute) + + /* Padding to make LED section byte-aligned */ + 0x75, 0x03, // Report Size (3) + 0x95, 0x01, // Report Count (1) + 0x91, 0x01, // OUTPUT (Constant, Array, Absolute) + + 0xc0 // End Collection +}; + +#define UX_HID_KEYBOARD_REPORT_LENGTH (sizeof(hid_keyboard_report)/sizeof(hid_keyboard_report[0])) + +#define DEVICE_FRAMEWORK_LENGTH_FULL_SPEED sizeof(ux_demo_device_framework_full_speed) +UCHAR ux_demo_device_framework_full_speed[] = { + /* Device descriptor */ + 0x12, /* bLength */ + 0x01, /* bDescriptorType */ + UX_W0(UX_DEMO_BCD_USB), UX_W1(UX_DEMO_BCD_USB), /* bcdUSB */ + 0x00, /* bDeviceClass : 0x00 : Interface-defined */ + 0x00, /* bDeviceSubClass : 0x00 : Reset */ + 0x00, /* bDeviceProtocol : 0x00 : Reset */ + UX_DEMO_MAX_EP0_SIZE, /* bMaxPacketSize0 */ + UX_W0(UX_DEMO_HID_DEVICE_VID), UX_W1(UX_DEMO_HID_DEVICE_VID), /* idVendor : ... */ + UX_W0(UX_DEMO_HID_DEVICE_PID), UX_W1(UX_DEMO_HID_DEVICE_PID), /* idProduct */ + 0x00, 0x00, /* bcdDevice */ + 0x01, /* iManufacturer */ + 0x02, /* iProduct */ + 0x03, /* iSerialNumber */ + 0x01, /* bNumConfigurations */ + + /* Configuration Descriptor, total 34 */ + 0x09, /* bLength */ + 0x02, /* bDescriptorType */ + UX_W0(UX_DEMO_HID_CONFIG_DESC_SIZE), UX_W1(UX_DEMO_HID_CONFIG_DESC_SIZE), /* wTotalLength */ + 0x01, /* bNumInterfaces */ + 0x01, /* bConfigurationValue */ + 0x04, /* iConfiguration */ + 0xC0, /* bmAttributes */ + /* D6 : 0x1 : Self-powered */ + /* D5, Remote Wakeup : 0x0 : Not supported */ + 0x32, /* bMaxPower : 50 : 100mA */ + + /* Interface descriptor */ + 0x09, /* bLength */ + 0x04, /* bDescriptorType */ + 0x00, /* bInterfaceNumber */ + 0x00, /* bAlternateSetting */ + 0x01, /* bNumEndpoints */ + 0x03, /* bInterfaceClass : 0x03 : HID */ + UX_DEMO_HID_SUBCLASS, /* bInterfaceSubClass : ... : Boot/non-boot Subclass */ + 0x01, /* bInterfaceProtocol : 0x00 : Undefined */ + 0x06, /* iInterface */ + + /* HID Descriptor */ + 0x09, /* bLength : 9 */ + 0x21, /* bDescriptorType : 0x21 : HID descriptor */ + 0x10, 0x01, /* bcdHID : 0x0110 */ + 0x21, /* bCountryCode : 33 : US */ + 0x01, /* bNumDescriptors */ + 0x22, /* bReportDescriptorType1 : 0x22 : Report descriptor */ + UX_W0(UX_HID_KEYBOARD_REPORT_LENGTH), UX_W1(UX_HID_KEYBOARD_REPORT_LENGTH), /* wDescriptorLength1 */ + + /* Endpoint Descriptor */ + 0x07, /* bLength */ + 0x05, /* bDescriptorType */ + UX_DEMO_HID_ENDPOINT_ADDRESS, /* bEndpointAddress */ + /* D7, Direction : 0x01 */ + /* D3..0, Endpoint number : 1 */ + 0x03, /* bmAttributes */ + /* D1..0, Transfer Type : 0x3 : Interrupt */ + /* D3..2, Synchronization Type : 0x0 : No Synchronization */ + /* D5..4, Usage Type : 0x0 : Data endpoint */ + UX_W0(UX_DEMO_HID_ENDPOINT_SIZE), UX_W1(UX_DEMO_HID_ENDPOINT_SIZE), /* wMaxPacketSize */ + /* D10..0, Max Packet Size */ + /* D12..11, Additional transactions : 0x00 */ + UX_DEMO_HID_ENDPOINT_BINTERVAL, /* bInterval : 8 : 8ms / x128 (FS 128ms/HS 16ms) */ +}; + +#define DEVICE_FRAMEWORK_LENGTH_HIGH_SPEED sizeof(ux_demo_device_framework_high_speed) +UCHAR ux_demo_device_framework_high_speed[] = { + /* Device descriptor */ + 0x12, /* bLength */ + 0x01, /* bDescriptorType */ + UX_W0(UX_DEMO_BCD_USB), UX_W1(UX_DEMO_BCD_USB), /* bcdUSB */ + 0x00, /* bDeviceClass : 0x00 : Interface-defined */ + 0x00, /* bDeviceSubClass : 0x00 : Reset */ + 0x00, /* bDeviceProtocol : 0x00 : Reset */ + UX_DEMO_MAX_EP0_SIZE, /* bMaxPacketSize0 */ + UX_W0(UX_DEMO_HID_DEVICE_VID), UX_W1(UX_DEMO_HID_DEVICE_VID), /* idVendor : ... */ + UX_W0(UX_DEMO_HID_DEVICE_PID), UX_W1(UX_DEMO_HID_DEVICE_PID), /* idProduct */ + 0x01, 0x00, /* bcdDevice */ + 0x01, /* iManufacturer */ + 0x02, /* iProduct */ + 0x03, /* iSerialNumber */ + 0x01, /* bNumConfigurations */ + + /* Device qualifier descriptor */ + 0x0A, /* bLength */ + 0x06, /* bDescriptorType */ + UX_W0(UX_DEMO_BCD_USB), UX_W1(UX_DEMO_BCD_USB), /* bcdUSB */ + 0x00, /* bDeviceClass : 0x00 : Interface-defined */ + 0x00, /* bDeviceSubClass : 0x00 : Reset */ + 0x00, /* bDeviceProtocol : 0x00 : Reset */ + UX_DEMO_MAX_EP0_SIZE, /* bMaxPacketSize0 */ + 0x01, /* bNumConfigurations */ + 0x00, /* bReserved */ + + /* Configuration descriptor */ + 0x09, /* bLength */ + 0x02, /* bDescriptorType */ + UX_W0(UX_DEMO_HID_CONFIG_DESC_SIZE), UX_W1(UX_DEMO_HID_CONFIG_DESC_SIZE), /* wTotalLength */ + 0x01, /* bNumInterfaces */ + 0x01, /* bConfigurationValue */ + 0x05, /* iConfiguration */ + 0xC0, /* bmAttributes */ + /* D6 : 0x1 : Self-powered */ + /* D5, Remote Wakeup : 0x0 : Not supported */ + 0x19, /* bMaxPower : 50 : 100mA */ + + /* Interface descriptor */ + 0x09, /* bLength */ + 0x04, /* bDescriptorType */ + 0x00, /* bInterfaceNumber */ + 0x00, /* bAlternateSetting */ + 0x01, /* bNumEndpoints */ + 0x03, /* bInterfaceClass : 0x03 : HID */ + UX_DEMO_HID_SUBCLASS, /* bInterfaceSubClass : ... : Boot/non-boot Subclass */ + 0x01, /* bInterfaceProtocol : 0x00 : Undefined */ + 0x06, /* iInterface */ + + /* HID Descriptor */ + 0x09, /* bLength : 9 */ + 0x21, /* bDescriptorType : 0x21 : HID descriptor */ + UX_W0(UX_DEMO_BCD_HID), UX_W1(UX_DEMO_BCD_HID), /* bcdHID : 0x0110 */ + 0x21, /* bCountryCode : 33 : US */ + 0x01, /* bNumDescriptors */ + 0x22, /* bReportDescriptorType1 : 0x22 : Report descriptor */ + UX_W0(UX_HID_KEYBOARD_REPORT_LENGTH), UX_W1(UX_HID_KEYBOARD_REPORT_LENGTH), /* wDescriptorLength1 */ + + /* Endpoint Descriptor (Interrupt In) */ + 0x07, /* bLength */ + 0x05, /* bDescriptorType */ + UX_DEMO_HID_ENDPOINT_ADDRESS, /* bEndpointAddress */ + /* D7, Direction : 0x01 */ + /* D3..0, Endpoint number : 1 */ + 0x03, /* bmAttributes */ + /* D1..0, Transfer Type : 0x3 : Interrupt */ + /* D3..2, Synchronization Type : 0x0 : No Synchronization */ + /* D5..4, Usage Type : 0x0 : Data endpoint */ + UX_W0(UX_DEMO_HID_ENDPOINT_SIZE), UX_W1(UX_DEMO_HID_ENDPOINT_SIZE), /* wMaxPacketSize */ + /* D10..0, Max Packet Size */ + /* D12..11, Additional transactions : 0x00 */ + UX_DEMO_HID_ENDPOINT_BINTERVAL, /* bInterval : 8 : 8ms / x128 (FS 128ms/HS 16ms) */ +}; + + +/* String Device Framework : + Byte 0 and 1 : Word containing the language ID : 0x0904 for US + Byte 2 : Byte containing the index of the descriptor + Byte 3 : Byte containing the length of the descriptor string +*/ +#define STRING_FRAMEWORK_LENGTH sizeof(ux_demo_string_framework) +UCHAR ux_demo_string_framework[] = { + + /* iManufacturer string descriptor : Index 1 */ + 0x09, 0x04, 0x01, 12, + 'U', 'S', 'B', 'X', ' ', 'e', 'c', 'l', 'i', 'p', 's', 'e', + + /* iProduct string descriptor : Index 2 */ + 0x09, 0x04, 0x02, 17, + 'H', 'I', 'D', ' ', 'K', 'e', 'y', 'b', 'o', 'a', 'r', 'd', ' ', 'D', 'e', 'm', 'o', + + /* iSerialNumber Number string descriptor : Index 3 */ + 0x09, 0x04, 0x03, 13, + '0', '0', '0', '0', '0', '0', '0', '0', '0', '0', '0', '0', '1', + + /* iConfiguration string descriptor : Index 4 */ + 0x09, 0x04, 0x04, 10, + 'F', 'U', 'L', 'L', ' ', 'S', 'P', 'E', 'E', 'D', + + /* iConfiguration string descriptor : Index 5 */ + 0x09, 0x04, 0x05, 10, + 'H', 'I', 'G', 'H', ' ', 'S', 'P', 'E', 'E', 'D', + + /* iInterface string descriptor : Index 6 */ + 0x09, 0x04, 0x06, 8, + 'K', 'e', 'y', 'b', 'o', 'a', 'r', 'd' +}; + + +/* Multiple languages are supported on the device, to add a language besides english, + the unicode language code must be appended to the ux_demo_language_id_framework array and the length + adjusted accordingly. +*/ +#define LANGUAGE_ID_FRAMEWORK_LENGTH sizeof(ux_demo_language_id_framework) +UCHAR ux_demo_language_id_framework[] = { + /* English. */ + 0x09, 0x04 +}; + +#ifndef EXTERNAL_MAIN +int main(void) +{ + /* Initialize the board. */ + board_setup(); + + /* Enter the ThreadX kernel. */ + tx_kernel_enter(); +} +#endif /* EXTERNAL_MAIN */ + +VOID tx_application_define(VOID *first_unused_memory) +{ +CHAR *memory_pointer; +UINT status; +UX_SLAVE_CLASS_HID_PARAMETER hid_keyboard_parameter; + + + UX_PARAMETER_NOT_USED(first_unused_memory); + + /* Use static memory block. */ + memory_pointer = ux_system_memory_pool; + + /* Initialize USBX Memory */ + status = ux_system_initialize(memory_pointer, UX_DEVICE_MEMORY_STACK_SIZE, UX_NULL, 0); + + if(status != UX_SUCCESS) + return; + + /* Install the device portion of USBX. */ + status = ux_device_stack_initialize(ux_demo_device_framework_high_speed, DEVICE_FRAMEWORK_LENGTH_HIGH_SPEED, + ux_demo_device_framework_full_speed, DEVICE_FRAMEWORK_LENGTH_FULL_SPEED, + ux_demo_string_framework, STRING_FRAMEWORK_LENGTH, + ux_demo_language_id_framework, LANGUAGE_ID_FRAMEWORK_LENGTH, + UX_NULL); + + if(status != UX_SUCCESS) + return; + + /* Initialize the hid keyboard class parameters for the device */ + hid_keyboard_parameter.ux_slave_class_hid_instance_activate = ux_demo_device_hid_instance_activate; + hid_keyboard_parameter.ux_slave_class_hid_instance_deactivate = ux_demo_device_hid_instance_deactivate; + hid_keyboard_parameter.ux_device_class_hid_parameter_report_address = hid_keyboard_report; + hid_keyboard_parameter.ux_device_class_hid_parameter_report_length = UX_HID_KEYBOARD_REPORT_LENGTH; + hid_keyboard_parameter.ux_device_class_hid_parameter_report_id = UX_FALSE; + hid_keyboard_parameter.ux_device_class_hid_parameter_callback = ux_demo_device_hid_callback; + hid_keyboard_parameter.ux_device_class_hid_parameter_get_callback = ux_demo_device_hid_get_callback; + + /* Initialize the device hid class. The class is connected with interface 0 on configuration 1. */ + status = ux_device_stack_class_register(_ux_system_slave_class_hid_name, ux_device_class_hid_entry, + 1, 0, (VOID *)&hid_keyboard_parameter); + + if(status != UX_SUCCESS) + return; + + /* Create the main demo thread. */ + status = ux_utility_thread_create(&ux_hid_thread, "hid_usbx_app_thread_entry", + ux_demo_device_hid_thread_entry, 0, ux_hid_thread_stack, + UX_DEMO_THREAD_STACK_SIZE, 20, 20, 1, TX_AUTO_START); + + if(status != UX_SUCCESS) + return; + + /* Register error callback */ + ux_utility_error_callback_register(ux_demo_error_callback); +} + +/********************************************************************/ +/** ux_demo_device_hid_instance_activate */ +/********************************************************************/ +VOID ux_demo_device_hid_instance_activate(VOID *hid_instance) +{ + if (hid_keyboard == UX_NULL) + hid_keyboard = (UX_SLAVE_CLASS_HID*) hid_instance; +} + +/********************************************************************/ +/** ux_demo_device_hid_instance_deactivate */ +/********************************************************************/ +VOID ux_demo_device_hid_instance_deactivate(VOID *hid_instance) +{ + if (hid_instance == (VOID *)hid_keyboard) + hid_keyboard = UX_NULL; +} + +/********************************************************************/ +/** ux_demo_device_hid_callback */ +/********************************************************************/ +UINT ux_demo_device_hid_callback(UX_SLAVE_CLASS_HID *hid_instance, UX_SLAVE_CLASS_HID_EVENT *hid_event) +{ + UX_PARAMETER_NOT_USED(hid_instance); + + /* There was an event. Analyze it. Is it NUM LOCK ? */ + if ((hid_event -> ux_device_class_hid_event_buffer[0] & UX_HID_NUM_LOCK_MASK) && + (hid_event -> ux_device_class_hid_event_report_type == UX_DEVICE_CLASS_HID_REPORT_TYPE_OUTPUT)) + + /* Set the Num lock flag. */ + num_lock_flag = UX_TRUE; + else + /* Reset the Num lock flag. */ + num_lock_flag = UX_FALSE; + + /* There was an event. Analyze it. Is it CAPS LOCK ? */ + if ((hid_event -> ux_device_class_hid_event_buffer[0] & UX_HID_CAPS_LOCK_MASK) && + (hid_event -> ux_device_class_hid_event_report_type == UX_DEVICE_CLASS_HID_REPORT_TYPE_OUTPUT)) + /* Set the Caps lock flag. */ + caps_lock_flag = UX_TRUE; + else + /* Reset the Caps lock flag. */ + caps_lock_flag = UX_FALSE; + + return UX_SUCCESS; +} + +/********************************************************************/ +/** ux_demo_device_hid_get_callback */ +/********************************************************************/ +UINT ux_demo_device_hid_get_callback(UX_SLAVE_CLASS_HID *hid_instance, UX_SLAVE_CLASS_HID_EVENT *hid_event) +{ + UX_PARAMETER_NOT_USED(hid_instance); + UX_PARAMETER_NOT_USED(hid_event); + + return UX_SUCCESS; +} + +/********************************************************************/ +/** ux_demo_device_hid_thread_entry: hid demo thread */ +/********************************************************************/ +VOID ux_demo_device_hid_thread_entry(ULONG thread_input) +{ +UCHAR status; +UCHAR key; +UX_SLAVE_CLASS_HID_EVENT device_hid_event; + + UX_PARAMETER_NOT_USED(thread_input); + + /* Register the USB device controllers available in this system. */ + usb_device_dcd_initialize(UX_NULL); + + /* Set the first key to 'a' which is 04. */ + key = 0x04; + + /* Reset the HID event structure. */ + ux_utility_memory_set(&device_hid_event, 0, sizeof(UX_SLAVE_CLASS_HID_EVENT)); + + while (1) + { + /* Check if the device state already configured. */ + if ((UX_SLAVE_DEVICE_CHECK_STATE(UX_DEVICE_CONFIGURED)) && (hid_keyboard != UX_NULL)) + { + if (key != 0) + { + /* Sleep thread for 20ms. */ + ux_utility_delay_ms(MS_TO_TICK(20)); + + /* Then insert a key into the keyboard event. Length is fixed to 8. */ + device_hid_event.ux_device_class_hid_event_report_id = 0; + device_hid_event.ux_device_class_hid_event_report_type = UX_DEVICE_CLASS_HID_REPORT_TYPE_INPUT; + device_hid_event.ux_device_class_hid_event_length = 8; + device_hid_event.ux_device_class_hid_event_buffer[0] = 0; /* 0x02: Left Shift modifier */ + device_hid_event.ux_device_class_hid_event_buffer[1] = 0; + device_hid_event.ux_device_class_hid_event_buffer[2] = key; /* key */ + device_hid_event.ux_device_class_hid_event_buffer[3] = 0; + device_hid_event.ux_device_class_hid_event_buffer[4] = 0; + device_hid_event.ux_device_class_hid_event_buffer[5] = 0; + device_hid_event.ux_device_class_hid_event_buffer[6] = 0; + device_hid_event.ux_device_class_hid_event_buffer[7] = 0; + + /* Set the keyboard event. */ + status = ux_device_class_hid_event_set(hid_keyboard, &device_hid_event); + + if (status != UX_SUCCESS) + return; + + /* Next event has the key depressed. */ + device_hid_event.ux_device_class_hid_event_buffer[2] = 0; /* 0x28: ENTER key */ + + /* Set the keyboard event. */ + status = ux_device_class_hid_event_set(hid_keyboard, &device_hid_event); + + if (status != UX_SUCCESS) + return; + + /* Are we at the end of alphabet ? */ + if (key != (0x04 + 25)) + /* Next key. */ + key++; + else + key = 0; + } + else + { + /* Sleep thread for 10ms. */ + ux_utility_delay_ms(MS_TO_TICK(10)); + } + } + else + { + /* Sleep thread for 10ms. */ + ux_utility_delay_ms(MS_TO_TICK(10)); + } + } +} + +static VOID ux_demo_error_callback(UINT system_level, UINT system_context, UINT error_code) +{ + /* + * Refer to ux_api.h. For example, + * UX_SYSTEM_LEVEL_INTERRUPT, UX_SYSTEM_CONTEXT_DCD, UX_DEVICE_HANDLE_UNKNOWN + */ + printf("USBX error: system level(%d), context(%d), error code(0x%x)\r\n", system_level, system_context, error_code); +} diff --git a/samples/demo_device_hid_keyboard_standalone.c b/samples/demo_device_hid_keyboard_standalone.c new file mode 100644 index 00000000..27eb780f --- /dev/null +++ b/samples/demo_device_hid_keyboard_standalone.c @@ -0,0 +1,567 @@ +/*************************************************************************** + * Copyright (c) 2025-present Eclipse ThreadX Contributors + * + * This program and the accompanying materials are made available under the + * terms of the MIT License which is available at + * https://opensource.org/licenses/MIT. + * + * + * SPDX-License-Identifier: MIT + **************************************************************************/ + + +/**************************************************************************/ +/**************************************************************************/ +/** */ +/** Overview */ +/** */ +/** This example works as a USB HID device. It will appear as a USB */ +/** keyboard device on PC. This application demo is running in */ +/** standalone mode. */ +/** */ +/** Note */ +/** */ +/** This demonstration is not optimized, to optimize application user */ +/** sould configuer related class flag in ux_user.h and adjust */ +/** UX_DEVICE_MEMORY_STACK_SIZE */ +/** */ +/** */ +/** AUTHOR */ +/** */ +/** Mohamed AYED */ +/** */ +/**************************************************************************/ +/**************************************************************************/ + +#include "ux_api.h" +#include "ux_device_class_hid.h" + +#ifndef UX_DEVICE_SIDE_ONLY +#error UX_DEVICE_SIDE_ONLY must be defined +#endif + +#ifndef UX_STANDALONE +#warning UX_STANDALONE must be define for this sample. +#endif + +#if UX_PERIODIC_RATE != 1000 +#warning UX_PERIODIC_RATE should be 1000 for 1ms tick. +#endif + +#if (UX_DEVICE_CLASS_HID_EVENT_BUFFER_LENGTH < 8) +#error HID Keyboard event buffer length must be more then 8 +#endif + + +/* Defined the keyboard will act as boot device. */ +/* define DEMO_HID_BOOT_DEVICE */ + +/**************************************************/ +/** Define constants */ +/**************************************************/ +#define UX_DEVICE_MEMORY_STACK_SIZE (7*1024) + +#define UX_DEMO_HID_DEVICE_VID 0x070A +#define UX_DEMO_HID_DEVICE_PID 0x4090 +#define UX_DEMO_MAX_EP0_SIZE 0x40U +#define UX_DEMO_HID_CONFIG_DESC_SIZE 0x22U + +#define UX_DEMO_BCD_USB 0x0200 + +#define UX_DEMO_BCD_HID 0x0110 + +#define UX_DEMO_HID_ENDPOINT_SIZE 0x08 +#define UX_DEMO_HID_ENDPOINT_ADDRESS 0x81 +#define UX_DEMO_HID_ENDPOINT_BINTERVAL 0x08 + +#ifdef DEMO_HID_BOOT_DEVICE +#define UX_DEMO_HID_SUBCLASS 0x01 +#else /* DEMO_HID_BOOT_DEVICE */ +#define UX_DEMO_HID_SUBCLASS 0x00 +#endif + +#define UX_HID_NUM_LOCK_MASK 0x01 +#define UX_HID_CAPS_LOCK_MASK 0x02 + +/**************************************************/ +/** usbx device hid demo callbacks */ +/**************************************************/ +VOID ux_demo_device_hid_instance_activate(VOID *hid_instance); +VOID ux_demo_device_hid_instance_deactivate(VOID *hid_instance); +UINT ux_demo_device_hid_callback(UX_SLAVE_CLASS_HID *hid_instance, UX_SLAVE_CLASS_HID_EVENT *hid_event); +UINT ux_demo_device_hid_get_callback(UX_SLAVE_CLASS_HID *hid_instance, UX_SLAVE_CLASS_HID_EVENT *hid_event); + +/**************************************************/ +/** usbx device hid keyboard instance */ +/**************************************************/ +UX_SLAVE_CLASS_HID *hid_keyboard; +UX_SLAVE_CLASS_HID_EVENT device_hid_event; + +VOID ux_application_define(VOID); +VOID ux_demo_device_hid_task(VOID); + +/**************************************************/ +/** usbx device hid keyboard */ +/**************************************************/ +ULONG num_lock_flag = UX_FALSE; +ULONG caps_lock_flag = UX_FALSE; + +/**************************************************/ +/** usbx callback error */ +/**************************************************/ +static VOID ux_demo_error_callback(UINT system_level, UINT system_context, UINT error_code); +static VOID demo_delay_with_tasks_running(ULONG ms_wait); + +static CHAR ux_system_memory_pool[UX_DEVICE_MEMORY_STACK_SIZE]; + +#ifndef EXTERNAL_MAIN +extern int board_setup(void); +#endif /* EXTERNAL_MAIN */ +extern int usb_device_dcd_initialize(void *param); + +/**************************************************/ +/** HID Report descriptor */ +/**************************************************/ +UCHAR hid_keyboard_report[] = { + 0x05, 0x01, // USAGE_PAGE (Generic Desktop) + 0x09, 0x06, // USAGE (Keyboard) + 0xa1, 0x01, // COLLECTION (Application) + + /* Modifier Keys (Shift, Ctrl, Alt, GUI) */ + 0x05, 0x07, // USAGE_PAGE (Key Codes) + 0x19, 0xE0, // USAGE_MINIMUM (Left Control) + 0x29, 0xE7, // USAGE_MAXIMUM (Right GUI) + 0x15, 0x00, // LOGICAL_MINIMUM (0) + 0x25, 0x01, // LOGICAL_MAXIMUM (1) + 0x75, 0x01, // REPORT_SIZE (1) + 0x95, 0x08, // REPORT_COUNT (8) + 0x81, 0x02, // INPUT (Data, Variable, Absolute) + + /* Reserved byte */ + 0x75, 0x08, // REPORT_SIZE (8) + 0x95, 0x01, // REPORT_COUNT (1) + 0x81, 0x01, // INPUT (Constant) + + /* Key Array (6-Key Rollover) */ + 0x05, 0x07, // USAGE_PAGE (Key Codes) + 0x19, 0x00, // USAGE_MINIMUM (0) + 0x29, 0x65, // USAGE_MAXIMUM (101) + 0x15, 0x00, // LOGICAL_MINIMUM (0) + 0x25, 0x65, // LOGICAL_MAXIMUM (101) + 0x75, 0x08, // REPORT_SIZE (8) + 0x95, 0x06, // REPORT_COUNT (6) + 0x81, 0x00, // INPUT (Data, Array) - Key array + + /* LED Output (Caps Lock, Num Lock, etc.) */ + 0x05, 0x08, // Usage Page (LEDs) + 0x19, 0x01, // Usage Minimum (Num Lock) + 0x29, 0x05, // Usage Maximum (Kana) + 0x15, 0x00, // Logical Minimum (0) + 0x25, 0x01, // Logical Maximum (1) + 0x75, 0x01, // Report Size (1) + 0x95, 0x05, // Report Count (5) + 0x91, 0x02, // OUTPUT (Data, Variable, Absolute) + + /* Padding to make LED section byte-aligned */ + 0x75, 0x03, // Report Size (3) + 0x95, 0x01, // Report Count (1) + 0x91, 0x01, // OUTPUT (Constant, Array, Absolute) + + 0xc0 // End Collection +}; + +#define UX_HID_KEYBOARD_REPORT_LENGTH (sizeof(hid_keyboard_report)/sizeof(hid_keyboard_report[0])) + +#define DEVICE_FRAMEWORK_LENGTH_FULL_SPEED sizeof(ux_demo_device_framework_full_speed) +UCHAR ux_demo_device_framework_full_speed[] = { + /* Device descriptor */ + 0x12, /* bLength */ + 0x01, /* bDescriptorType */ + UX_W0(UX_DEMO_BCD_USB), UX_W1(UX_DEMO_BCD_USB), /* bcdUSB */ + 0x00, /* bDeviceClass : 0x00 : Interface-defined */ + 0x00, /* bDeviceSubClass : 0x00 : Reset */ + 0x00, /* bDeviceProtocol : 0x00 : Reset */ + UX_DEMO_MAX_EP0_SIZE, /* bMaxPacketSize0 */ + UX_W0(UX_DEMO_HID_DEVICE_VID), UX_W1(UX_DEMO_HID_DEVICE_VID), /* idVendor : ... */ + UX_W0(UX_DEMO_HID_DEVICE_PID), UX_W1(UX_DEMO_HID_DEVICE_PID), /* idProduct */ + 0x00, 0x00, /* bcdDevice */ + 0x01, /* iManufacturer */ + 0x02, /* iProduct */ + 0x03, /* iSerialNumber */ + 0x01, /* bNumConfigurations */ + + /* Configuration Descriptor, total 34 */ + 0x09, /* bLength */ + 0x02, /* bDescriptorType */ + UX_W0(UX_DEMO_HID_CONFIG_DESC_SIZE), UX_W1(UX_DEMO_HID_CONFIG_DESC_SIZE), /* wTotalLength */ + 0x01, /* bNumInterfaces */ + 0x01, /* bConfigurationValue */ + 0x04, /* iConfiguration */ + 0xC0, /* bmAttributes */ + /* D6 : 0x1 : Self-powered */ + /* D5, Remote Wakeup : 0x0 : Not supported */ + 0x32, /* bMaxPower : 50 : 100mA */ + + /* Interface descriptor */ + 0x09, /* bLength */ + 0x04, /* bDescriptorType */ + 0x00, /* bInterfaceNumber */ + 0x00, /* bAlternateSetting */ + 0x01, /* bNumEndpoints */ + 0x03, /* bInterfaceClass : 0x03 : HID */ + UX_DEMO_HID_SUBCLASS, /* bInterfaceSubClass : ... : Boot/non-boot Subclass */ + 0x01, /* bInterfaceProtocol : 0x00 : Undefined */ + 0x06, /* iInterface */ + + /* HID Descriptor */ + 0x09, /* bLength : 9 */ + 0x21, /* bDescriptorType : 0x21 : HID descriptor */ + 0x10, 0x01, /* bcdHID : 0x0110 */ + 0x21, /* bCountryCode : 33 : US */ + 0x01, /* bNumDescriptors */ + 0x22, /* bReportDescriptorType1 : 0x22 : Report descriptor */ + UX_W0(UX_HID_KEYBOARD_REPORT_LENGTH), UX_W1(UX_HID_KEYBOARD_REPORT_LENGTH), /* wDescriptorLength1 */ + + /* Endpoint Descriptor */ + 0x07, /* bLength */ + 0x05, /* bDescriptorType */ + UX_DEMO_HID_ENDPOINT_ADDRESS, /* bEndpointAddress */ + /* D7, Direction : 0x01 */ + /* D3..0, Endpoint number : 2 */ + 0x03, /* bmAttributes */ + /* D1..0, Transfer Type : 0x3 : Interrupt */ + /* D3..2, Synchronization Type : 0x0 : No Synchronization */ + /* D5..4, Usage Type : 0x0 : Data endpoint */ + UX_W0(UX_DEMO_HID_ENDPOINT_SIZE), UX_W1(UX_DEMO_HID_ENDPOINT_SIZE), /* wMaxPacketSize */ + /* D10..0, Max Packet Size */ + /* D12..11, Additional transactions : 0x00 */ + UX_DEMO_HID_ENDPOINT_BINTERVAL, /* bInterval : 8 : 8ms / x128 (FS 128ms/HS 16ms) */ +}; + +#define DEVICE_FRAMEWORK_LENGTH_HIGH_SPEED sizeof(ux_demo_device_framework_high_speed) +UCHAR ux_demo_device_framework_high_speed[] = { + /* Device descriptor */ + 0x12, /* bLength */ + 0x01, /* bDescriptorType */ + UX_W0(UX_DEMO_BCD_USB), UX_W1(UX_DEMO_BCD_USB), /* bcdUSB */ + 0x00, /* bDeviceClass : 0x00 : Interface-defined */ + 0x00, /* bDeviceSubClass : 0x00 : Reset */ + 0x00, /* bDeviceProtocol : 0x00 : Reset */ + UX_DEMO_MAX_EP0_SIZE, /* bMaxPacketSize0 */ + UX_W0(UX_DEMO_HID_DEVICE_VID), UX_W1(UX_DEMO_HID_DEVICE_VID), /* idVendor : ... */ + UX_W0(UX_DEMO_HID_DEVICE_PID), UX_W1(UX_DEMO_HID_DEVICE_PID), /* idProduct */ + 0x01, 0x00, /* bcdDevice */ + 0x01, /* iManufacturer */ + 0x02, /* iProduct */ + 0x03, /* iSerialNumber */ + 0x01, /* bNumConfigurations */ + + /* Device qualifier descriptor */ + 0x0A, /* bLength */ + 0x06, /* bDescriptorType */ + UX_W0(UX_DEMO_BCD_USB), UX_W1(UX_DEMO_BCD_USB), /* bcdUSB */ + 0x00, /* bDeviceClass : 0x00 : Interface-defined */ + 0x00, /* bDeviceSubClass : 0x00 : Reset */ + 0x00, /* bDeviceProtocol : 0x00 : Reset */ + UX_DEMO_MAX_EP0_SIZE, /* bMaxPacketSize0 */ + 0x01, /* bNumConfigurations */ + 0x00, /* bReserved */ + + /* Configuration descriptor */ + 0x09, /* bLength */ + 0x02, /* bDescriptorType */ + UX_W0(UX_DEMO_HID_CONFIG_DESC_SIZE), UX_W1(UX_DEMO_HID_CONFIG_DESC_SIZE), /* wTotalLength */ + 0x01, /* bNumInterfaces */ + 0x01, /* bConfigurationValue */ + 0x05, /* iConfiguration */ + 0xC0, /* bmAttributes */ + /* D6 : 0x1 : Self-powered */ + /* D5, Remote Wakeup : 0x0 : Not supported */ + 0x19, /* bMaxPower : 50 : 100mA */ + + /* Interface descriptor */ + 0x09, /* bLength */ + 0x04, /* bDescriptorType */ + 0x00, /* bInterfaceNumber */ + 0x00, /* bAlternateSetting */ + 0x01, /* bNumEndpoints */ + 0x03, /* bInterfaceClass : 0x03 : HID */ + UX_DEMO_HID_SUBCLASS, /* bInterfaceSubClass : ... : Boot/non-boot Subclass */ + 0x01, /* bInterfaceProtocol : 0x00 : Undefined */ + 0x06, /* iInterface */ + + /* HID Descriptor */ + 0x09, /* bLength : 9 */ + 0x21, /* bDescriptorType : 0x21 : HID descriptor */ + UX_W0(UX_DEMO_BCD_HID), UX_W1(UX_DEMO_BCD_HID), /* bcdHID : 0x0110 */ + 0x21, /* bCountryCode : 33 : US */ + 0x01, /* bNumDescriptors */ + 0x22, /* bReportDescriptorType1 : 0x22 : Report descriptor */ + UX_W0(UX_HID_KEYBOARD_REPORT_LENGTH), UX_W1(UX_HID_KEYBOARD_REPORT_LENGTH), /* wDescriptorLength1 */ + + /* Endpoint Descriptor (Interrupt In) */ + 0x07, /* bLength */ + 0x05, /* bDescriptorType */ + UX_DEMO_HID_ENDPOINT_ADDRESS, /* bEndpointAddress */ + /* D7, Direction : 0x01 */ + /* D3..0, Endpoint number : 1 */ + 0x03, /* bmAttributes */ + /* D1..0, Transfer Type : 0x3 : Interrupt */ + /* D3..2, Synchronization Type : 0x0 : No Synchronization */ + /* D5..4, Usage Type : 0x0 : Data endpoint */ + UX_W0(UX_DEMO_HID_ENDPOINT_SIZE), UX_W1(UX_DEMO_HID_ENDPOINT_SIZE), /* wMaxPacketSize */ + /* D10..0, Max Packet Size */ + /* D12..11, Additional transactions : 0x00 */ + UX_DEMO_HID_ENDPOINT_BINTERVAL, /* bInterval : 8 : 8ms / x128 (FS 128ms/HS 16ms) */ +}; + + +/* String Device Framework : + Byte 0 and 1 : Word containing the language ID : 0x0904 for US + Byte 2 : Byte containing the index of the descriptor + Byte 3 : Byte containing the length of the descriptor string +*/ +#define STRING_FRAMEWORK_LENGTH sizeof(ux_demo_string_framework) +UCHAR ux_demo_string_framework[] = { + + /* iManufacturer string descriptor : Index 1 */ + 0x09, 0x04, 0x01, 12, + 'U', 'S', 'B', 'X', ' ', 'e', 'c', 'l', 'i', 'p', 's', 'e', + + /* iProduct string descriptor : Index 2 */ + 0x09, 0x04, 0x02, 17, + 'H', 'I', 'D', ' ', 'K', 'e', 'y', 'b', 'o', 'a', 'r', 'd', ' ', 'D', 'e', 'm', 'o', + + /* iSerialNumber Number string descriptor : Index 3 */ + 0x09, 0x04, 0x03, 13, + '0', '0', '0', '0', '0', '0', '0', '0', '0', '0', '0', '0', '1', + + /* iConfiguration string descriptor : Index 4 */ + 0x09, 0x04, 0x04, 10, + 'F', 'U', 'L', 'L', ' ', 'S', 'P', 'E', 'E', 'D', + + /* iConfiguration string descriptor : Index 5 */ + 0x09, 0x04, 0x05, 10, + 'H', 'I', 'G', 'H', ' ', 'S', 'P', 'E', 'E', 'D', + + /* iInterface string descriptor : Index 6 */ + 0x09, 0x04, 0x06, 8, + 'K', 'e', 'y', 'b', 'o', 'a', 'r', 'd' +}; + + +/* Multiple languages are supported on the device, to add a language besides english, + the unicode language code must be appended to the ux_demo_language_id_framework array and the length + adjusted accordingly. +*/ +#define LANGUAGE_ID_FRAMEWORK_LENGTH sizeof(ux_demo_language_id_framework) +UCHAR ux_demo_language_id_framework[] = { + /* English. */ + 0x09, 0x04 +}; + +#ifndef EXTERNAL_MAIN +int main(void) +{ + /* Initialize the board. */ + board_setup(); + + ux_application_define(); + + while (1) + { + ux_system_tasks_run(); + ux_demo_device_hid_task(); + } +} +#endif /* EXTERNAL_MAIN */ + +VOID ux_application_define(VOID) +{ +CHAR *memory_pointer; +UINT status; +UX_SLAVE_CLASS_HID_PARAMETER hid_keyboard_parameter; + + /* Use static memory block. */ + memory_pointer = ux_system_memory_pool; + + /* Initialize USBX Memory */ + status = ux_system_initialize(memory_pointer, UX_DEVICE_MEMORY_STACK_SIZE, UX_NULL, 0); + + if(status != UX_SUCCESS) + return; + + /* Install the device portion of USBX. */ + status = ux_device_stack_initialize(ux_demo_device_framework_high_speed, DEVICE_FRAMEWORK_LENGTH_HIGH_SPEED, + ux_demo_device_framework_full_speed, DEVICE_FRAMEWORK_LENGTH_FULL_SPEED, + ux_demo_string_framework, STRING_FRAMEWORK_LENGTH, + ux_demo_language_id_framework, LANGUAGE_ID_FRAMEWORK_LENGTH, + UX_NULL); + + if(status != UX_SUCCESS) + return; + + /* Initialize the hid keyboard class parameters for the device */ + hid_keyboard_parameter.ux_slave_class_hid_instance_activate = ux_demo_device_hid_instance_activate; + hid_keyboard_parameter.ux_slave_class_hid_instance_deactivate = ux_demo_device_hid_instance_deactivate; + hid_keyboard_parameter.ux_device_class_hid_parameter_report_address = hid_keyboard_report; + hid_keyboard_parameter.ux_device_class_hid_parameter_report_length = UX_HID_KEYBOARD_REPORT_LENGTH; + hid_keyboard_parameter.ux_device_class_hid_parameter_report_id = UX_FALSE; + hid_keyboard_parameter.ux_device_class_hid_parameter_callback = ux_demo_device_hid_callback; + hid_keyboard_parameter.ux_device_class_hid_parameter_get_callback = ux_demo_device_hid_get_callback; + + /* Initialize the device hid class. The class is connected with interface 0 on configuration 1. */ + status = ux_device_stack_class_register(_ux_system_slave_class_hid_name, ux_device_class_hid_entry, + 1, 0, (VOID *)&hid_keyboard_parameter); + + if(status != UX_SUCCESS) + return; + + /* Register error callback */ + ux_utility_error_callback_register(ux_demo_error_callback); + + /* Register the USB device controllers available in this system. */ + usb_device_dcd_initialize(UX_NULL); +} + +/********************************************************************/ +/** ux_demo_device_hid_instance_activate */ +/********************************************************************/ +VOID ux_demo_device_hid_instance_activate(VOID *hid_instance) +{ + if (hid_keyboard == UX_NULL) + hid_keyboard = (UX_SLAVE_CLASS_HID*) hid_instance; +} + +/********************************************************************/ +/** ux_demo_device_hid_instance_deactivate */ +/********************************************************************/ +VOID ux_demo_device_hid_instance_deactivate(VOID *hid_instance) +{ + if (hid_instance == (VOID *)hid_keyboard) + hid_keyboard = UX_NULL; +} + +/********************************************************************/ +/** ux_demo_device_hid_callback */ +/********************************************************************/ +UINT ux_demo_device_hid_callback(UX_SLAVE_CLASS_HID *hid_instance, UX_SLAVE_CLASS_HID_EVENT *hid_event) +{ + UX_PARAMETER_NOT_USED(hid_instance); + + /* There was an event. Analyze it. Is it NUM LOCK ? */ + if ((hid_event -> ux_device_class_hid_event_buffer[0] & UX_HID_NUM_LOCK_MASK) && + (hid_event -> ux_device_class_hid_event_report_type == UX_DEVICE_CLASS_HID_REPORT_TYPE_OUTPUT)) + + /* Set the Num lock flag. */ + num_lock_flag = UX_TRUE; + else + /* Reset the Num lock flag. */ + num_lock_flag = UX_FALSE; + + /* There was an event. Analyze it. Is it CAPS LOCK ? */ + if ((hid_event -> ux_device_class_hid_event_buffer[0] & UX_HID_CAPS_LOCK_MASK) && + (hid_event -> ux_device_class_hid_event_report_type == UX_DEVICE_CLASS_HID_REPORT_TYPE_OUTPUT)) + /* Set the Caps lock flag. */ + caps_lock_flag = UX_TRUE; + else + /* Reset the Caps lock flag. */ + caps_lock_flag = UX_FALSE; + + return UX_SUCCESS; +} + +/********************************************************************/ +/** ux_demo_device_hid_get_callback */ +/********************************************************************/ +UINT ux_demo_device_hid_get_callback(UX_SLAVE_CLASS_HID *hid_instance, UX_SLAVE_CLASS_HID_EVENT *hid_event) +{ + UX_PARAMETER_NOT_USED(hid_instance); + UX_PARAMETER_NOT_USED(hid_event); + + return UX_SUCCESS; +} + + +/********************************************************************/ +/** ux_demo_device_hid_task: hid demo task */ +/********************************************************************/ +VOID ux_demo_device_hid_task(VOID) +{ +UCHAR status; +static UCHAR key = 0x04; + + /* Reset the HID event structure. */ + ux_utility_memory_set(&device_hid_event, 0, sizeof(UX_SLAVE_CLASS_HID_EVENT)); + + /* Check if the device state already configured. */ + if ((UX_SLAVE_DEVICE_CHECK_STATE(UX_DEVICE_CONFIGURED)) && (hid_keyboard != UX_NULL)) + { + if (key != 0) + { + /* delay for 10ms. */ + demo_delay_with_tasks_running(10); + + /* Then insert a key into the keyboard event. Length is fixed to 8. */ + device_hid_event.ux_device_class_hid_event_report_id = 0; + device_hid_event.ux_device_class_hid_event_report_type = UX_DEVICE_CLASS_HID_REPORT_TYPE_INPUT; + device_hid_event.ux_device_class_hid_event_length = 8; + device_hid_event.ux_device_class_hid_event_buffer[0] = 0; /* 0x02: Left Shift modifier */ + device_hid_event.ux_device_class_hid_event_buffer[1] = 0; + device_hid_event.ux_device_class_hid_event_buffer[2] = key; /* key */ + device_hid_event.ux_device_class_hid_event_buffer[3] = 0; + device_hid_event.ux_device_class_hid_event_buffer[4] = 0; + device_hid_event.ux_device_class_hid_event_buffer[5] = 0; + device_hid_event.ux_device_class_hid_event_buffer[6] = 0; + device_hid_event.ux_device_class_hid_event_buffer[7] = 0; + + /* Set the keyboard event. */ + status = ux_device_class_hid_event_set(hid_keyboard, &device_hid_event); + + if (status != UX_SUCCESS) + return; + + /* Next event has the key depressed. */ + device_hid_event.ux_device_class_hid_event_buffer[2] = 0; /* 0x28: ENTER key */ + + /* Set the keyboard event. */ + status = ux_device_class_hid_event_set(hid_keyboard, &device_hid_event); + + if (status != UX_SUCCESS) + return; + + /* Are we at the end of alphabet ? */ + if (key != (0x04 + 25)) + /* Next key. */ + key++; + else + key = 0; + } + } +} + +/********************************************************************/ +/** demo_delay_with_tasks_running: delay with tasks */ +/********************************************************************/ +static VOID demo_delay_with_tasks_running(ULONG ms_wait) +{ +ULONG ticks; + + /* Get current time. */ + ticks = ux_utility_time_get(); + + /* Wait until timeout. */ + while(ux_utility_time_elapsed(ticks, ux_utility_time_get()) < UX_MS_TO_TICK_NON_ZERO(ms_wait)) + { + ux_system_tasks_run(); + } +} + +static VOID ux_demo_error_callback(UINT system_level, UINT system_context, UINT error_code) +{ + /* + * Refer to ux_api.h. For example, + * UX_SYSTEM_LEVEL_INTERRUPT, UX_SYSTEM_CONTEXT_DCD, UX_DEVICE_HANDLE_UNKNOWN + */ + printf("USBX error: system level(%d), context(%d), error code(0x%x)\r\n", system_level, system_context, error_code); +}