/*FUNCTION*---------------------------------------------------------------- * * Function Name : usb_class_cdc_os_event_wait * Returned Value : OS_EVENT_OK if get event * Comments : * This serves particularly for event waiting on BM when timeout equals 0, which means infinite wait. * *END*--------------------------------------------------------------------*/ uint32_t usb_class_cdc_os_event_wait(os_event_handle handle, uint32_t bitmask, uint32_t flag, uint32_t timeout) { uint32_t ret; #if (OS_ADAPTER_ACTIVE_OS == OS_ADAPTER_MQX) /* USB stack running on MQX */ ret = OS_Event_wait(handle, bitmask, flag, timeout); #else while(OS_EVENT_OK != (ret = OS_Event_wait(handle, bitmask, flag, timeout))) { /* Actually we want to run _usb_khci_task() */ Poll(); } #endif return ret; }
static void _usb_otg_task(void* otg_handle) { usb_otg_state_struct_t * usb_otg_struct_ptr = (usb_otg_state_struct_t *) otg_handle; #if ((OS_ADAPTER_ACTIVE_OS == OS_ADAPTER_SDK)&& (USE_RTOS)) OS_Event_wait(usb_otg_struct_ptr->otg_isr_event, USB_OTG_KHCI_ISR_EVENT | USB_OTG_MAX3353_ISR_EVENT, FALSE, 10); _usb_otg_callback_get_status((usb_otg_handle) otg_handle); #else if(OS_Event_check_bit(usb_otg_struct_ptr->otg_isr_event, USB_OTG_KHCI_ISR_EVENT|USB_OTG_MAX3353_ISR_EVENT)) { _usb_otg_callback_get_status((usb_otg_handle)otg_handle); } #endif _usb_otg_sm(usb_otg_struct_ptr); /* Application events */ if (OS_Event_check_bit(usb_otg_struct_ptr->otg_app_event, OTG_STATE_EVENT_MASK)) { /* App indications */ if (usb_otg_struct_ptr->init_struct->app_otg_callback) { usb_otg_struct_ptr->init_struct->app_otg_callback((usb_otg_handle) usb_otg_struct_ptr, usb_otg_struct_ptr->otg_app_event); } OS_Event_clear((usb_otg_struct_ptr->otg_app_event), OTG_STATE_EVENT_MASK); } }
/*FUNCTION*---------------------------------------------------------------- * * Function Name : OTG_App_Periodic_Task * Returned Value : none * Comments : * * *END*--------------------------------------------------------------------*/ void OTG_App_Periodic_Task() { uint32_t otg_app_event_value; #if (OS_ADAPTER_ACTIVE_OS == OS_ADAPTER_MQX) OS_Event_wait(g_otg_app_event_handle,~((uint32_t)0), FALSE, 200); #endif otg_app_event_value = OS_Event_get_value(g_otg_app_event_handle); if (otg_app_event_value) { App_Print_Event(otg_app_event_value); OTG_App_Load_Unload_Task(otg_app_event_value); } App_HandleUserInput(); }
/* video_camera_control_task */ void video_camera_control_task(void) { usb_status status = USB_OK; // Wait for insertion or removal event OS_Event_wait(g_video_camera.video_camera_control_event, USB_EVENT_CTRL, FALSE, 0); if (OS_Event_check_bit(g_video_camera.video_camera_control_event, USB_EVENT_CTRL)) OS_Event_clear(g_video_camera.video_camera_control_event, USB_EVENT_CTRL); switch ( g_video_camera.control_state) { case USB_DEVICE_IDLE: break; case USB_DEVICE_ATTACHED: USB_PRINTF("Video device attached\r\n"); g_video_camera.control_state = USB_DEVICE_SET_INTERFACE_STARTED; status = usb_host_open_dev_interface(g_video_camera.host_handle, g_video_camera.dev_handle, g_video_camera.control_intf_handle, (class_handle*)&g_video_camera.video_control_handle); if (status != USB_OK) { USB_PRINTF("\r\nError in _usb_hostdev_open_interface: %x\r\n", status); return; } g_video_camera.video_command_ptr->class_control_handle = g_video_camera.video_control_handle; break; case USB_DEVICE_INTERFACE_OPENED: break; case USB_DEVICE_DETACHED: status = usb_host_close_dev_interface(g_video_camera.host_handle, g_video_camera.dev_handle, g_video_camera.control_intf_handle, g_video_camera.video_control_handle); if (status != USB_OK) { USB_PRINTF("error in _usb_hostdev_close_interface %x\n", status); } g_video_camera.control_intf_handle = NULL; g_video_camera.video_control_handle = NULL; USB_PRINTF("Going to idle state\r\n"); g_video_camera.control_state = USB_DEVICE_IDLE; break; case USB_DEVICE_OTHER: break; default: break; } }
/*FUNCTION*---------------------------------------------------------------- * * Function Name : Keyboard_Task * Returned Value : none * Comments : * Execution starts here * *END*--------------------------------------------------------------------*/ void Keyboard_Task(void* param) { usb_status status = USB_OK; static uint8_t i = 0; usb_host_handle kbd_host_handle = (usb_host_handle) param; uint8_t j = 0; // Wait for insertion or removal event OS_Event_wait(kbd_usb_event, USB_EVENT_CTRL | USB_EVENT_DATA | USB_EVENT_DATA_CORRUPTED | USB_EVEN_OUTPUT | USB_EVENT_STATE_CHANGE, FALSE, 0); if (OS_Event_check_bit(kbd_usb_event, USB_EVENT_STATE_CHANGE)) { OS_Event_clear(kbd_usb_event, USB_EVENT_STATE_CHANGE); update_state(); } if (OS_Event_check_bit(kbd_usb_event, USB_EVEN_OUTPUT)) { OS_Event_clear(kbd_usb_event, USB_EVEN_OUTPUT); if (detach == 1) { /*clear the keyboard flag value*/ for (j = 8 - 1; j >= 2; j--) { flag[j] = 0; } } for (j = 2; j < 8; j++) { if ((buffer_timer[j] == flag[j]) && ((g_current_time - flag_time[j]) > KB_CONTINUE_PRESS)) { if (flag[j] > 1) { usb_host_hid_keyboard_output_keyvalue(flag[j]); } } } if (!OS_Event_check_bit(kbd_usb_event, USB_EVENT_CTRL | USB_EVENT_DATA | USB_EVENT_DATA_CORRUPTED)) { return; } } if (OS_Event_check_bit(kbd_usb_event, USB_EVENT_CTRL)) { OS_Event_clear(kbd_usb_event, USB_EVENT_CTRL); } switch(kbd_hid_device.DEV_STATE) { case USB_DEVICE_IDLE: break; case USB_DEVICE_ATTACHED: USB_PRINTF("\r\nKeyboard device attached\r\n"); kbd_hid_device.DEV_STATE = USB_DEVICE_SET_INTERFACE_STARTED; status = usb_host_open_dev_interface(kbd_host_handle, kbd_hid_device.DEV_HANDLE, kbd_hid_device.INTF_HANDLE, (usb_class_handle*) &kbd_hid_device.CLASS_HANDLE); if (status != USB_OK) { USB_PRINTF("\r\nError in _usb_hostdev_open_interface: %x\r\n", status); return; } break; case USB_DEVICE_INTERFACE_OPENED: kbd_hid_get_report_descriptor(); break; case USB_DEVICE_GET_REPORT_DESCRIPTOR_DONE: kbd_hid_get_buffer(); USB_PRINTF("Keyboard interfaced, setting protocol...\r\n"); /* now we will set the USB Hid standard boot protocol */ kbd_hid_device.DEV_STATE = USB_DEVICE_SETTING_PROTOCOL; kbd_hid_com->class_ptr = kbd_hid_device.CLASS_HANDLE; kbd_hid_com->callback_fn = usb_host_hid_keyboard_ctrl_callback; kbd_hid_com->callback_param = 0; status = usb_class_hid_set_protocol(kbd_hid_com, USB_PROTOCOL_HID_KEYBOARD); if (status != USB_OK) { USB_PRINTF("\r\nError in usb_class_hid_set_protocol: %x\r\n", status); } break; case USB_DEVICE_SET_INTERFACE_STARTED: break; case USB_DEVICE_INUSE: //USB_PRINTF("%d\n", data_received); i++; if (kbd_data_received) { /****************************************************************** Initiate a transfer request on the interrupt pipe ******************************************************************/ kbd_hid_com->class_ptr = kbd_hid_device.CLASS_HANDLE; kbd_hid_com->callback_fn = usb_host_hid_keyboard_recv_callback; kbd_hid_com->callback_param = 0; if (i == 4) { sleep_test = TRUE; } status = usb_class_hid_recv_data(kbd_hid_com, kbd_buffer, kbd_size); if (sleep_test) { sleep_test = FALSE; } if (status != USB_OK) { USB_PRINTF("\r\nError in usb_class_hid_recv_data: %x", status); } else { //USB_PRINTF("try to get recv data\n"); kbd_data_received = 0; } } /* Wait until we get the data from keyboard. */ if (OS_Event_wait(kbd_usb_event, USB_EVENT_CTRL | USB_EVENT_DATA | USB_EVENT_DATA_CORRUPTED, FALSE, 0) == OS_EVENT_OK) { if (OS_Event_check_bit(kbd_usb_event, USB_EVENT_DATA)) { //USB_PRINTF("get data\n"); OS_Event_clear(kbd_usb_event, USB_EVENT_DATA); kbd_data_received = 1; if (kbd_hid_device.DEV_STATE == USB_DEVICE_INUSE) { process_kbd_buffer((uint8_t *) kbd_buffer); } status = usb_class_hid_recv_data(kbd_hid_com, kbd_buffer, kbd_size); if (status != USB_OK) { USB_PRINTF("\r\nError in usb_class_hid_recv_data: %x", status); } else { //USB_PRINTF("try to get recv data\n"); kbd_data_received = 0; } } if (OS_Event_check_bit(kbd_usb_event, USB_EVENT_DATA_CORRUPTED)) { //USB_PRINTF("get corrupted\n"); kbd_data_received = 1; OS_Event_clear(kbd_usb_event, USB_EVENT_DATA_CORRUPTED); status = usb_class_hid_recv_data(kbd_hid_com, kbd_buffer, kbd_size); if (status != USB_OK) { USB_PRINTF("\r\nError in usb_class_hid_recv_data: %x", status); } else { //USB_PRINTF("try to get recv data\n"); kbd_data_received = 0; } } if (OS_Event_check_bit(kbd_usb_event, USB_EVENT_CTRL)) { //USB_PRINTF("get control\n"); //OS_Event_set(USB_Event, USB_EVENT_CTRL); } } break; case USB_DEVICE_DETACHED: if (kbd_data_received == 1) { status = usb_host_close_dev_interface(kbd_host_handle, kbd_hid_device.DEV_HANDLE, kbd_hid_device.INTF_HANDLE, kbd_hid_device.CLASS_HANDLE); if (status != USB_OK) { USB_PRINTF("error in _usb_hostdev_close_interface %x\r\n", status); } kbd_hid_device.INTF_HANDLE = NULL; kbd_hid_device.CLASS_HANDLE = NULL; USB_PRINTF("Going to idle state\r\n"); kbd_hid_device.DEV_STATE = USB_DEVICE_IDLE; if (kbd_reportDescriptor != NULL) { OS_Mem_free(kbd_reportDescriptor); kbd_reportDescriptor = NULL; } if (kbd_buffer != NULL) { OS_Mem_free(kbd_buffer); kbd_buffer = NULL; } } else { if (OS_Event_wait(kbd_usb_event, USB_EVENT_CTRL | USB_EVENT_DATA | USB_EVENT_DATA_CORRUPTED, FALSE, 0) == OS_EVENT_OK) { if (OS_Event_check_bit(kbd_usb_event, USB_EVENT_DATA)) { //USB_PRINTF("get data\n"); OS_Event_clear(kbd_usb_event, USB_EVENT_DATA); kbd_data_received = 1; if (kbd_hid_device.DEV_STATE == USB_DEVICE_INUSE) { process_kbd_buffer((uint8_t *) kbd_buffer); OS_Mem_zero(kbd_buffer, kbd_size); } } if (OS_Event_check_bit(kbd_usb_event, USB_EVENT_DATA_CORRUPTED)) { //USB_PRINTF("get corrupted\n"); kbd_data_received = 1; OS_Event_clear(kbd_usb_event, USB_EVENT_DATA_CORRUPTED); } if (OS_Event_check_bit(kbd_usb_event, USB_EVENT_CTRL)) { //USB_PRINTF("get control\n"); //OS_Event_set(USB_Event, USB_EVENT_CTRL); } } OS_Event_set(kbd_usb_event, USB_EVENT_CTRL); } break; case USB_DEVICE_OTHER: break; default: break; } /* Endswitch */ }
/* video_camera_stream_task */ void video_camera_stream_task(void) { usb_status status = USB_OK; // Wait for insertion or removal event OS_Event_wait(g_video_camera.video_camera_stream_event, USB_EVENT_CTRL, FALSE, 0); if (OS_Event_check_bit(g_video_camera.video_camera_stream_event, USB_EVENT_CTRL)) OS_Event_clear(g_video_camera.video_camera_stream_event, USB_EVENT_CTRL); switch ( g_video_camera.stream_state) { case USB_DEVICE_IDLE: break; case USB_DEVICE_ATTACHED: USB_PRINTF("Video device attached\r\n"); g_video_camera.stream_state = USB_DEVICE_SET_INTERFACE_STARTED; status = usb_host_open_dev_interface(g_video_camera.host_handle, g_video_camera.dev_handle, g_video_camera.stream_intf_handle, (class_handle*)&g_video_camera.video_stream_handle); if (status != USB_OK) { USB_PRINTF("\r\nError in _usb_hostdev_open_interface: %x\r\n", status); return; } g_video_camera.video_command_ptr->class_stream_handle = g_video_camera.video_stream_handle; //g_video_camera.stream_interface_status = (uint8_t)STREAM_INTERFACE_IDLE; break; case USB_DEVICE_INTERFACE_OPENED: if (g_video_camera.stream_interface_status == (uint8_t)STREAM_INTERFACE_IDLE) { g_video_camera.stream_interface_status = (uint8_t)STREAM_INTERFACE_SET_DEFAULT_INTRFACE; } else if (g_video_camera.stream_interface_status == (uint8_t)STREAM_INTERFACE_INTERFACE_OPENING) { g_video_camera.stream_interface_status = (uint8_t)STREAM_INTERFACE_FIND_OPTIMAL_SETTING; } else if (g_video_camera.stream_interface_status == (uint8_t)STREAM_INTERFACE_SET_INTERFACE) { g_video_camera.stream_interface_status = (uint8_t)STREAM_INTERFACE_STREAMING; g_video_camera.stream_state = USB_DEVICE_VIDEO_START; g_video_camera.stream_pipe_opened = 1; g_video_camera.stream_transfer.is_1ms = 0; g_video_camera.video_command_ptr->callback_param = &g_video_camera; g_video_camera.video_command_ptr->callback_fn = usb_host_video_stream_callback; } else { } break; case USB_DEVICE_INTERFACE_OPENING: break; case USB_DEVICE_VIDEO_START: // if(g_video_camera.stream_transfer.stream_transfer == 0) // { // g_video_camera.video_command_ptr->callback_param = &g_video_camera; // g_video_camera.video_command_ptr->callback_fn = usb_host_audio_stream_callback; // g_video_camera.stream_transfer.stream_transfer = 1; // } // else // { // // } break; case USB_DEVICE_DETACHED: status = usb_host_close_dev_interface(g_video_camera.host_handle, g_video_camera.dev_handle, g_video_camera.stream_intf_handle, g_video_camera.video_stream_handle); if (status != USB_OK) { USB_PRINTF("error in _usb_hostdev_close_interface %x\n", status); } g_video_camera.stream_pipe_opened = 0; g_video_camera.stream_interface_status = STREAM_INTERFACE_IDLE; g_video_camera.stream_intf_handle = NULL; g_video_camera.video_stream_handle = NULL; g_video_camera.stream_transfer.stream_transfer = 0; USB_PRINTF("Going to idle state\r\n"); g_video_camera.stream_state = USB_DEVICE_IDLE; break; case USB_DEVICE_OTHER: break; default: break; } /* Endswitch */ }