| U8 host_auto_configure_endpoint | ( | ) |
This function configures the pipe according to the device class of the interface selected.
- Returns:
- status
Definition at line 293 of file usb_host_enum.c.
References data_stage, ENDPOINT_DESCRIPTOR, S_interface::ep_addr, ep_table, get_interface_descriptor_offset(), Get_pipe_token, host_configure_pipe, host_determine_pipe_size(), Host_disable_pipe, Host_enable_pipe, HOST_FALSE, Host_select_pipe, Host_set_configured, HOST_TRUE, interface_supported, MSK_EP_DIR, nb_interface_supported, OFFSET_DESCRIPTOR_LENGHT, OFFSET_FIELD_DESCRIPTOR_TYPE, OFFSET_FIELD_EP_ADDR, OFFSET_FIELD_EP_INTERVAL, OFFSET_FIELD_EP_SIZE, OFFSET_FIELD_EP_TYPE, OFFSET_FIELS_NB_OF_EP, ONE_BANK, SIZEOF_DATA_STAGE, T_DESC_OFFSET, and Usb_unallocate_memory.
Referenced by usb_host_task().
00294 { 00295 U8 nb_endpoint_to_configure; 00296 T_DESC_OFFSET descriptor_offset; 00297 U8 physical_pipe=1; // =1 cause lookup table assumes that physiacl pipe 0 is reserved for control 00298 U8 i; 00299 U8 ep_index; 00300 00301 // For all interfaces to configure... 00302 for(i=0;i<nb_interface_supported;i++) 00303 { 00304 ep_index=0; 00305 // First look for the target interface descriptor offset 00306 descriptor_offset = get_interface_descriptor_offset(interface_supported[i].interface_nb,interface_supported[i].altset_nb); 00307 // Get the number of endpoint to configure for this interface 00308 nb_endpoint_to_configure = data_stage[descriptor_offset+OFFSET_FIELS_NB_OF_EP]; 00309 // Get the first Endpoint descriptor offset to configure 00310 descriptor_offset += data_stage[descriptor_offset+OFFSET_DESCRIPTOR_LENGHT]; // pointing on endpoint descriptor 00311 00312 // While there is at least one pipe to configure 00313 while (nb_endpoint_to_configure) 00314 { 00315 // Check and look for an Endpoint descriptor 00316 while (data_stage[descriptor_offset+OFFSET_FIELD_DESCRIPTOR_TYPE] != ENDPOINT_DESCRIPTOR) 00317 { 00318 descriptor_offset += data_stage[descriptor_offset]; 00319 if(descriptor_offset > SIZEOF_DATA_STAGE) // No more endpoint descriptor found -> Errror ! 00320 { return HOST_FALSE; } 00321 } 00322 00323 // Select the new physical pipe to configure and get ride of any previous configuration for this physical pipe 00324 Host_select_pipe(physical_pipe); 00325 Host_disable_pipe(); 00326 Usb_unallocate_memory(); 00327 Host_enable_pipe(); 00328 00329 // Build the pipe configuration according to the endpoint descriptors fields received 00330 // 00331 // host_configure_pipe( 00332 // physical_pipe, // pipe nb in USB interface 00333 // data_stage[descriptor_offset+OFFSET_FIELD_EP_TYPE], // pipe type (interrupt/BULK/ISO) 00334 // Get_pipe_token(data_stage[descriptor_offset+OFFSET_FIELD_EP_ADDR]), // pipe addr 00335 // (data_stage[descriptor_offset+2] & MSK_EP_DIR), // pipe dir (IN/OUT) 00336 // host_determine_pipe_size((U16)data_stage[descriptor_offset+OFFSET_FIELD_EP_SIZE]),// pipe size 00337 // ONE_BANK, // bumber of bank to allocate for pipe 00338 // data_stage[descriptor_offset+OFFSET_FIELD_EP_INTERVAL] // interrupt period (for interrupt pipe) 00339 // ); 00340 host_configure_pipe( \ 00341 physical_pipe, \ 00342 data_stage[descriptor_offset+OFFSET_FIELD_EP_TYPE], \ 00343 Get_pipe_token(data_stage[descriptor_offset+OFFSET_FIELD_EP_ADDR]), \ 00344 (data_stage[descriptor_offset+OFFSET_FIELD_EP_ADDR] & MSK_EP_DIR), \ 00345 host_determine_pipe_size((U16)data_stage[descriptor_offset+OFFSET_FIELD_EP_SIZE]),\ 00346 ONE_BANK, \ 00347 data_stage[descriptor_offset+OFFSET_FIELD_EP_INTERVAL] \ 00348 ); 00349 00350 // Update Physical Pipe lookup table with device enpoint address 00351 ep_table[physical_pipe]=data_stage[descriptor_offset+OFFSET_FIELD_EP_ADDR]; 00352 physical_pipe++; 00353 // Update endpoint addr table in supported interface structure 00354 interface_supported[i].ep_addr[ep_index++]=data_stage[descriptor_offset+OFFSET_FIELD_EP_ADDR]; 00355 descriptor_offset += data_stage[descriptor_offset]; // pointing on next descriptor 00356 00357 // All target endpoints configured ? 00358 nb_endpoint_to_configure--; 00359 } //for(i=0;i<nb_interface_supported;i++) 00360 } 00361 Host_set_configured(); 00362 return HOST_TRUE; 00363 }
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