diff options
Diffstat (limited to 'src/class/custom/custom_host.c')
| -rw-r--r-- | src/class/custom/custom_host.c | 160 |
1 files changed, 160 insertions, 0 deletions
diff --git a/src/class/custom/custom_host.c b/src/class/custom/custom_host.c new file mode 100644 index 000000000..894e641e8 --- /dev/null +++ b/src/class/custom/custom_host.c @@ -0,0 +1,160 @@ +/**************************************************************************/ +/*! + @file custom_host.c + @author hathach (tinyusb.org) + + @section LICENSE + + Software License Agreement (BSD License) + + Copyright (c) 2013, hathach (tinyusb.org) + All rights reserved. + + Redistribution and use in source and binary forms, with or without + modification, are permitted provided that the following conditions are met: + 1. Redistributions of source code must retain the above copyright + notice, this list of conditions and the following disclaimer. + 2. Redistributions in binary form must reproduce the above copyright + notice, this list of conditions and the following disclaimer in the + documentation and/or other materials provided with the distribution. + 3. Neither the name of the copyright holders nor the + names of its contributors may be used to endorse or promote products + derived from this software without specific prior written permission. + + THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS ''AS IS'' AND ANY + EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED + WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE + DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT HOLDER BE LIABLE FOR ANY + DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES + (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; + LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND + ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT + (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS + SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE. + + This file is part of the tinyusb stack. +*/ +/**************************************************************************/ + +#include "tusb_option.h" + +#if (TUSB_OPT_HOST_ENABLED && CFG_TUSB_HOST_CUSTOM_CLASS) + +#define _TINY_USB_SOURCE_FILE_ + +//--------------------------------------------------------------------+ +// INCLUDE +//--------------------------------------------------------------------+ +#include "common/tusb_common.h" +#include "custom_host.h" + +//--------------------------------------------------------------------+ +// MACRO CONSTANT TYPEDEF +//--------------------------------------------------------------------+ + +//--------------------------------------------------------------------+ +// INTERNAL OBJECT & FUNCTION DECLARATION +//--------------------------------------------------------------------+ +custom_interface_info_t custom_interface[CFG_TUSB_HOST_DEVICE_MAX]; + +static tusb_error_t cush_validate_paras(uint8_t dev_addr, uint16_t vendor_id, uint16_t product_id, void * p_buffer, uint16_t length) +{ + if ( !tusbh_custom_is_mounted(dev_addr, vendor_id, product_id) ) + { + return TUSB_ERROR_DEVICE_NOT_READY; + } + + TU_ASSERT( p_buffer != NULL && length != 0, TUSB_ERROR_INVALID_PARA); + + return TUSB_ERROR_NONE; +} +//--------------------------------------------------------------------+ +// APPLICATION API (need to check parameters) +//--------------------------------------------------------------------+ +tusb_error_t tusbh_custom_read(uint8_t dev_addr, uint16_t vendor_id, uint16_t product_id, void * p_buffer, uint16_t length) +{ + TU_ASSERT_ERR( cush_validate_paras(dev_addr, vendor_id, product_id, p_buffer, length) ); + + if ( !hcd_pipe_is_idle(custom_interface[dev_addr-1].pipe_in) ) + { + return TUSB_ERROR_INTERFACE_IS_BUSY; + } + + (void) hcd_pipe_xfer( custom_interface[dev_addr-1].pipe_in, p_buffer, length, true); + + return TUSB_ERROR_NONE; +} + +tusb_error_t tusbh_custom_write(uint8_t dev_addr, uint16_t vendor_id, uint16_t product_id, void const * p_data, uint16_t length) +{ + TU_ASSERT_ERR( cush_validate_paras(dev_addr, vendor_id, product_id, p_data, length) ); + + if ( !hcd_pipe_is_idle(custom_interface[dev_addr-1].pipe_out) ) + { + return TUSB_ERROR_INTERFACE_IS_BUSY; + } + + (void) hcd_pipe_xfer( custom_interface[dev_addr-1].pipe_out, p_data, length, true); + + return TUSB_ERROR_NONE; +} + +//--------------------------------------------------------------------+ +// USBH-CLASS API +//--------------------------------------------------------------------+ +void cush_init(void) +{ + tu_memclr(&custom_interface, sizeof(custom_interface_info_t) * CFG_TUSB_HOST_DEVICE_MAX); +} + +tusb_error_t cush_open_subtask(uint8_t dev_addr, tusb_desc_interface_t const *p_interface_desc, uint16_t *p_length) +{ + // FIXME quick hack to test lpc1k custom class with 2 bulk endpoints + uint8_t const *p_desc = (uint8_t const *) p_interface_desc; + p_desc = tu_desc_next(p_desc); + + //------------- Bulk Endpoints Descriptor -------------// + for(uint32_t i=0; i<2; i++) + { + tusb_desc_endpoint_t const *p_endpoint = (tusb_desc_endpoint_t const *) p_desc; + TU_ASSERT(TUSB_DESC_ENDPOINT == p_endpoint->bDescriptorType, TUSB_ERROR_INVALID_PARA); + + pipe_handle_t * p_pipe_hdl = ( p_endpoint->bEndpointAddress & TUSB_DIR_IN_MASK ) ? + &custom_interface[dev_addr-1].pipe_in : &custom_interface[dev_addr-1].pipe_out; + *p_pipe_hdl = hcd_edpt_open(dev_addr, p_endpoint, TUSB_CLASS_VENDOR_SPECIFIC); + TU_ASSERT ( pipehandle_is_valid(*p_pipe_hdl), TUSB_ERROR_HCD_OPEN_PIPE_FAILED ); + + p_desc = tu_desc_next(p_desc); + } + + (*p_length) = sizeof(tusb_desc_interface_t) + 2*sizeof(tusb_desc_endpoint_t); + return TUSB_ERROR_NONE; +} + +void cush_isr(pipe_handle_t pipe_hdl, xfer_result_t event) +{ + +} + +void cush_close(uint8_t dev_addr) +{ + tusb_error_t err1, err2; + custom_interface_info_t * p_interface = &custom_interface[dev_addr-1]; + + // TODO re-consider to check pipe valid before calling pipe_close + if( pipehandle_is_valid( p_interface->pipe_in ) ) + { + err1 = hcd_pipe_close( p_interface->pipe_in ); + } + + if ( pipehandle_is_valid( p_interface->pipe_out ) ) + { + err2 = hcd_pipe_close( p_interface->pipe_out ); + } + + tu_memclr(p_interface, sizeof(custom_interface_info_t)); + + TU_ASSERT(err1 == TUSB_ERROR_NONE && err2 == TUSB_ERROR_NONE, (void) 0 ); +} + +#endif |