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add & pass a first few test for cdc host

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implement cdch_open_subtask
This commit is contained in:
hathach
2013-07-01 10:35:37 +07:00
parent a943cce991
commit a4f7dc1105
16 changed files with 646 additions and 46 deletions
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65
tinyusb/class/cdc_host.c
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@@ -55,17 +55,78 @@
//--------------------------------------------------------------------+
// INTERNAL OBJECT & FUNCTION DECLARATION
//--------------------------------------------------------------------+
STATIC_ cdch_data_t cdch_data[TUSB_CFG_HOST_DEVICE_MAX];
//--------------------------------------------------------------------+
// IMPLEMENTATION
// USBH-CLASS DRIVER API
//--------------------------------------------------------------------+
void cdch_init(void)
{
memclr_(cdch_data, sizeof(cdch_data_t)*TUSB_CFG_HOST_DEVICE_MAX);
}
tusb_error_t cdch_open_subtask(uint8_t dev_addr, tusb_descriptor_interface_t const *p_interface_desc, uint16_t *p_length)
{
if ( CDC_COMM_SUBCLASS_ABSTRACT_CONTROL_MODEL != p_interface_desc->bInterfaceSubClass)
{
return TUSB_ERROR_CDCH_UNSUPPORTED_SUBCLASS;
}
if (CDC_COMM_PROTOCOL_ATCOMMAND != p_interface_desc->bInterfaceProtocol)
{
return TUSB_ERROR_CDCH_UNSUPPORTED_PROTOCOL;
}
uint8_t const * p_desc = descriptor_next ( (uint8_t const *) p_interface_desc );
cdch_data_t * p_cdc = &cdch_data[dev_addr-1];
p_cdc->interface_number = p_interface_desc->bInterfaceNumber;
p_cdc->interface_protocol = p_interface_desc->bInterfaceProtocol; // TODO 0xff is consider as rndis candidate, other is virtual Com
//------------- Communication Interface -------------//
(*p_length) = sizeof(tusb_descriptor_interface_t);
while( TUSB_DESC_TYPE_INTERFACE_CLASS_SPECIFIC == p_desc[DESCRIPTOR_OFFSET_TYPE] )
{ // Communication Functional Descriptors
(*p_length) += p_desc[DESCRIPTOR_OFFSET_LENGTH];
p_desc = descriptor_next(p_desc);
}
if ( TUSB_DESC_TYPE_ENDPOINT == p_desc[DESCRIPTOR_OFFSET_TYPE])
{ // notification endpoint if any
p_cdc->pipe_notification = hcd_pipe_open(dev_addr, (tusb_descriptor_endpoint_t const *) p_desc, TUSB_CLASS_CDC);
(*p_length) += p_desc[DESCRIPTOR_OFFSET_LENGTH];
p_desc = descriptor_next(p_desc);
ASSERT(pipehandle_is_valid(p_cdc->pipe_notification), TUSB_ERROR_HCD_OPEN_PIPE_FAILED);
}
//------------- Data Interface (if any) -------------//
if ( (TUSB_DESC_TYPE_INTERFACE == p_desc[DESCRIPTOR_OFFSET_TYPE]) &&
(TUSB_CLASS_CDC_DATA == ((tusb_descriptor_interface_t const *) p_desc)->bInterfaceClass) )
{
(*p_length) += p_desc[DESCRIPTOR_OFFSET_LENGTH];
p_desc = descriptor_next(p_desc);
// data endpoints expected to be in pairs
for(uint32_t i=0; i<2; i++)
{
tusb_descriptor_endpoint_t const *p_endpoint = (tusb_descriptor_endpoint_t const *) p_desc;
ASSERT_INT(TUSB_DESC_TYPE_ENDPOINT, p_endpoint->bDescriptorType, TUSB_ERROR_CDCH_DESCRIPTOR_CORRUPTED);
pipe_handle_t * p_pipe_hdl = ( p_endpoint->bEndpointAddress & TUSB_DIR_DEV_TO_HOST_MASK ) ?
&p_cdc->pipe_in : &p_cdc->pipe_out;
(*p_pipe_hdl) = hcd_pipe_open(dev_addr, p_endpoint, TUSB_CLASS_CDC);
ASSERT ( pipehandle_is_valid(*p_pipe_hdl), TUSB_ERROR_HCD_OPEN_PIPE_FAILED );
(*p_length) += p_desc[DESCRIPTOR_OFFSET_LENGTH];
p_desc = descriptor_next( p_desc );
}
}
return TUSB_ERROR_NONE;
}