214 lines
7.9 KiB
C
214 lines
7.9 KiB
C
/**************************************************************************/
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/*!
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@file msc_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_MSC
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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 "msc_host.h"
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//--------------------------------------------------------------------+
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// MACRO CONSTANT TYPEDEF
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//--------------------------------------------------------------------+
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typedef struct {
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pipe_handle_t bulk_in, bulk_out;
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uint8_t interface_number;
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uint8_t max_lun;
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uint8_t vendor_id[8];
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uint8_t product_id[16];
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msc_cmd_block_wrapper_t cbw;
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msc_cmd_status_wrapper_t csw;
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uint8_t buffer[100];
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}msch_interface_t;
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STATIC_VAR msch_interface_t msch_data[TUSB_CFG_HOST_DEVICE_MAX] TUSB_CFG_ATTR_USBRAM; // TODO to be static
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// TODO rename this
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STATIC_VAR uint8_t msch_buffer[10] TUSB_CFG_ATTR_USBRAM;
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//--------------------------------------------------------------------+
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// INTERNAL OBJECT & FUNCTION DECLARATION
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//--------------------------------------------------------------------+
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//--------------------------------------------------------------------+
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// PUBLIC API
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//--------------------------------------------------------------------+
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bool tusbh_msc_is_mounted(uint8_t dev_addr)
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{
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return tusbh_device_is_configured(dev_addr) &&
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pipehandle_is_valid(msch_data[dev_addr-1].bulk_in) &&
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pipehandle_is_valid(msch_data[dev_addr-1].bulk_out);
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}
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uint8_t const * tusbh_msc_get_vendor_name(uint8_t dev_addr)
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{
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return tusbh_msc_is_mounted(dev_addr) ? msch_data[dev_addr-1].vendor_id : NULL;
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}
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uint8_t const * tusbh_msc_get_product_name(uint8_t dev_addr)
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{
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return tusbh_msc_is_mounted(dev_addr) ? msch_data[dev_addr-1].product_id : NULL;
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}
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//--------------------------------------------------------------------+
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// CLASS-USBH API (don't require to verify parameters)
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//--------------------------------------------------------------------+
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void msch_init(void)
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{
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memclr_(msch_data, sizeof(msch_interface_t)*TUSB_CFG_HOST_DEVICE_MAX);
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}
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tusb_error_t msch_open_subtask(uint8_t dev_addr, tusb_descriptor_interface_t const *p_interface_desc, uint16_t *p_length)
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{
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tusb_error_t error;
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OSAL_SUBTASK_BEGIN
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if (! ( MSC_SUBCLASS_SCSI == p_interface_desc->bInterfaceSubClass &&
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MSC_PROTOCOL_BOT == p_interface_desc->bInterfaceProtocol ) )
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{
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return TUSB_ERROR_MSCH_UNSUPPORTED_PROTOCOL;
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}
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//------------- Open Data Pipe -------------//
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tusb_descriptor_endpoint_t const *p_endpoint = (tusb_descriptor_endpoint_t const *) descriptor_next( (uint8_t const*) p_interface_desc );
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for(uint32_t i=0; i<2; i++)
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{
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ASSERT_INT(TUSB_DESC_TYPE_ENDPOINT, p_endpoint->bDescriptorType, TUSB_ERROR_USBH_DESCRIPTOR_CORRUPTED);
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pipe_handle_t * p_pipe_hdl = ( p_endpoint->bEndpointAddress & TUSB_DIR_DEV_TO_HOST_MASK ) ?
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&msch_data[dev_addr-1].bulk_in : &msch_data[dev_addr-1].bulk_out;
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(*p_pipe_hdl) = hcd_pipe_open(dev_addr, p_endpoint, TUSB_CLASS_MSC);
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ASSERT ( pipehandle_is_valid(*p_pipe_hdl), TUSB_ERROR_HCD_OPEN_PIPE_FAILED );
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p_endpoint = (tusb_descriptor_endpoint_t const *) descriptor_next( (uint8_t const*) p_endpoint );
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}
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msch_data[dev_addr-1].interface_number = p_interface_desc->bInterfaceNumber;
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(*p_length) += sizeof(tusb_descriptor_interface_t) + 2*sizeof(tusb_descriptor_endpoint_t);
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//------------- Get Max Lun -------------//
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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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MSC_REQUEST_GET_MAX_LUN, 0, msch_data[dev_addr-1].interface_number,
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1, msch_buffer ),
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error
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);
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SUBTASK_ASSERT( TUSB_ERROR_NONE == error /* && TODO STALL means zero */);
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msch_data[dev_addr-1].max_lun = msch_buffer[0];
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//------------- SCSI Inquiry -------------//
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msch_data[dev_addr-1].cbw = (msc_cmd_block_wrapper_t) {
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.signature = 0x43425355,
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.tag = 0xCAFECAFE,
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.xfer_bytes = sizeof(scsi_inquiry_data_t),
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.flags = TUSB_DIR_DEV_TO_HOST_MASK,
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.lun = 0,
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.cmd_len = sizeof(scsi_inquiry_t),
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};
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scsi_inquiry_t cmd_inquiry =
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{
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.operation_code = SCSI_CMD_INQUIRY,
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.alloc_length = sizeof(scsi_inquiry_data_t)
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};
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memcpy(msch_data[dev_addr-1].cbw.command, &cmd_inquiry, sizeof(scsi_inquiry_t));
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hcd_pipe_xfer(msch_data[dev_addr-1].bulk_out, &msch_data[dev_addr-1].cbw, sizeof(msc_cmd_block_wrapper_t), false);
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hcd_pipe_xfer(msch_data[dev_addr-1].bulk_in , msch_data[dev_addr-1].buffer, sizeof(scsi_inquiry_data_t), false);
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hcd_pipe_xfer(msch_data[dev_addr-1].bulk_in , &msch_data[dev_addr-1].csw, sizeof(msc_cmd_status_wrapper_t), true);
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// TODO timeout required, a proper synchronization
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// while( !hcd_pipe_is_idle(msch_data[dev_addr-1].bulk_in) )
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{
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osal_task_delay(2);
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}
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memcpy(msch_data[dev_addr-1].vendor_id,
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((scsi_inquiry_data_t*)msch_data[dev_addr-1].buffer)->vendor_id,
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8);
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memcpy(msch_data[dev_addr-1].product_id,
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((scsi_inquiry_data_t*)msch_data[dev_addr-1].buffer)->product_id,
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16);
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tusbh_msc_mounted_cb(dev_addr);
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OSAL_SUBTASK_END
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return TUSB_ERROR_NONE;
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}
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void msch_isr(pipe_handle_t pipe_hdl, tusb_event_t event, uint32_t xferred_bytes)
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{
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}
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void msch_close(uint8_t dev_addr)
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{
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(void) hcd_pipe_close(msch_data[dev_addr-1].bulk_in);
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(void) hcd_pipe_close(msch_data[dev_addr-1].bulk_out);
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memclr_(&msch_data[dev_addr-1], sizeof(msch_interface_t));
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}
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//--------------------------------------------------------------------+
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// INTERNAL & HELPER
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//--------------------------------------------------------------------+
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//static tusb_error_t scsi_command_send(msc_cmd_block_wrapper_t const * cbw, uint8_t * buffer, msc_cmd_status_wrapper_t const * csw)
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//{
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// tusb_error_t error;
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//
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// OSAL_SUBTASK_BEGIN
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//
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// hcd_pipe_xfer()
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//
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// OSAL_SUBTASK_END
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//}
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#endif
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