178 lines
6.8 KiB
C
178 lines
6.8 KiB
C
/**************************************************************************/
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/*!
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@file cdc_rndis_host.c
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@author hathach (tinyusb.org)
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@section LICENSE
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Software License Agreement (BSD License)
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Copyright (c) 2013, hathach (tinyusb.org)
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All rights reserved.
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Redistribution and use in source and binary forms, with or without
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modification, are permitted provided that the following conditions are met:
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1. Redistributions of source code must retain the above copyright
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notice, this list of conditions and the following disclaimer.
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2. Redistributions in binary form must reproduce the above copyright
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notice, this list of conditions and the following disclaimer in the
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documentation and/or other materials provided with the distribution.
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3. Neither the name of the copyright holders nor the
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names of its contributors may be used to endorse or promote products
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derived from this software without specific prior written permission.
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THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS ''AS IS'' AND ANY
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EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED
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WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE
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DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT HOLDER BE LIABLE FOR ANY
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DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES
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(INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES;
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LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND
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ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
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(INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS
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SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
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This file is part of the tinyusb stack.
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*/
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/**************************************************************************/
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#include "tusb_option.h"
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#if (MODE_HOST_SUPPORTED && TUSB_CFG_HOST_CDC && TUSB_CFG_HOST_CDC_RNDIS)
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#define _TINY_USB_SOURCE_FILE_
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//--------------------------------------------------------------------+
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// INCLUDE
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//--------------------------------------------------------------------+
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#include "common/common.h"
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#include "cdc_host.h"
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#include "cdc_rndis_host.h"
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//--------------------------------------------------------------------+
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// MACRO CONSTANT TYPEDEF
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//--------------------------------------------------------------------+
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#define RNDIS_MSG_PAYLOAD_MAX (1024*4)
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static uint8_t msg_notification[TUSB_CFG_HOST_DEVICE_MAX][8] TUSB_CFG_ATTR_USBRAM;
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STATIC_ rndish_data_t rndish_data[TUSB_CFG_HOST_DEVICE_MAX];
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// TODO Microsoft requires message length for any get command must be at least 0x400 bytes
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static uint32_t msg_payload[RNDIS_MSG_PAYLOAD_MAX/4] TUSB_CFG_ATTR_USBRAM;
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//--------------------------------------------------------------------+
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// INTERNAL OBJECT & FUNCTION DECLARATION
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//--------------------------------------------------------------------+
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static tusb_error_t rndis_body_subtask(void);
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//--------------------------------------------------------------------+
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// IMPLEMENTATION
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//--------------------------------------------------------------------+
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// To enable the TASK_ASSERT style (quick return on false condition) in a real RTOS, a task must act as a wrapper
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// and is used mainly to call subtasks. Within a subtask return statement can be called freely, the task with
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// forever loop cannot have any return at all.
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OSAL_TASK_FUNCTION(cdch_rndis_task) (void* p_task_para)
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{
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OSAL_TASK_LOOP_BEGIN
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rndis_body_subtask();
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OSAL_TASK_LOOP_END
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}
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static tusb_error_t rndis_body_subtask(void)
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{
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static uint8_t relative_addr;
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OSAL_SUBTASK_BEGIN
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for (relative_addr = 0; relative_addr < TUSB_CFG_HOST_DEVICE_MAX; relative_addr++)
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{
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}
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osal_task_delay(100);
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OSAL_SUBTASK_END
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}
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//--------------------------------------------------------------------+
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// RNDIS-CDC Driver API
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//--------------------------------------------------------------------+
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void rndish_init(void)
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{
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memclr_(rndish_data, sizeof(rndish_data_t)*TUSB_CFG_HOST_DEVICE_MAX);
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//------------- Task creation -------------//
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//------------- semaphore creation for notificaiton pipe -------------//
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for(uint8_t i=0; i<TUSB_CFG_HOST_DEVICE_MAX; i++)
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{
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rndish_data[i].sem_notification_hdl = osal_semaphore_create( OSAL_SEM_REF(rndish_data[i].semaphore_notification) );
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}
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}
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void rndish_close(uint8_t dev_addr)
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{
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osal_semaphore_reset( rndish_data[dev_addr-1].sem_notification_hdl );
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}
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tusb_error_t rndish_open_subtask(uint8_t dev_addr, cdch_data_t *p_cdc)
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{
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tusb_error_t error;
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*((rndis_msg_initialize_t*) msg_payload) = (rndis_msg_initialize_t)
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{
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.type = RNDIS_MSG_INITIALIZE,
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.length = sizeof(rndis_msg_initialize_t),
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.request_id = 1, // TODO should use some magic number
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.major_version = 1,
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.minor_version = 0,
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.max_xfer_size = 0x4000 // TODO mimic windows
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};
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OSAL_SUBTASK_BEGIN
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//------------- Send RNDIS Message Initialize -------------//
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OSAL_SUBTASK_INVOKED_AND_WAIT(
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usbh_control_xfer_subtask( dev_addr, bm_request_type(TUSB_DIR_HOST_TO_DEV, TUSB_REQUEST_TYPE_CLASS, TUSB_REQUEST_RECIPIENT_INTERFACE),
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SEND_ENCAPSULATED_COMMAND, 0, p_cdc->interface_number,
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sizeof(rndis_msg_initialize_t), (uint8_t*) msg_payload ),
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error
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);
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if ( TUSB_ERROR_NONE != error ) SUBTASK_EXIT(error);
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//------------- waiting for Response Available notification -------------//
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(void) hcd_pipe_xfer(p_cdc->pipe_notification, msg_notification[dev_addr], 8, true);
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osal_semaphore_wait(rndish_data[dev_addr-1].sem_notification_hdl, OSAL_TIMEOUT_NORMAL, &error);
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if ( TUSB_ERROR_NONE != error ) SUBTASK_EXIT(error);
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//------------- Get RNDIS Message Initialize Complete -------------//
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OSAL_SUBTASK_INVOKED_AND_WAIT(
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usbh_control_xfer_subtask( dev_addr, bm_request_type(TUSB_DIR_DEV_TO_HOST, TUSB_REQUEST_TYPE_CLASS, TUSB_REQUEST_RECIPIENT_INTERFACE),
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GET_ENCAPSULATED_RESPONSE, 0, p_cdc->interface_number,
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RNDIS_MSG_PAYLOAD_MAX, (uint8_t*) msg_payload ),
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error
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);
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if ( TUSB_ERROR_NONE != error ) SUBTASK_EXIT(error);
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if ( tusbh_cdc_rndis_mounted_cb )
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{
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tusbh_cdc_rndis_mounted_cb(dev_addr);
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}
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OSAL_SUBTASK_END
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}
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void rndish_xfer_isr(cdch_data_t *p_cdc, pipe_handle_t pipe_hdl, tusb_event_t event, uint32_t xferred_bytes)
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{
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if ( pipehandle_is_equal(pipe_hdl, p_cdc->pipe_notification) )
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{
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osal_semaphore_post( rndish_data[pipe_hdl.dev_addr-1].sem_notification_hdl );
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}
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}
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#endif
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