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vmedcyArto Kinnunen
vmedcy
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Arto Kinnunen
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PSOC6: add WHD EMAC driver
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‎features/netsocket/emac-drivers/TARGET_WHD/interface/WhdSTAInterface.cpp

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‎features/netsocket/emac-drivers/TARGET_WHD/interface/WhdSTAInterface.h

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/* WHD implementation of NetworkInterfaceAPI
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* Copyright (c) 2017 ARM Limited
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*
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* Licensed under the Apache License, Version 2.0 (the "License");
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* you may not use this file except in compliance with the License.
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* You may obtain a copy of the License at
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*
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* http://www.apache.org/licenses/LICENSE-2.0
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*
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* Unless required by applicable law or agreed to in writing, software
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* distributed under the License is distributed on an "AS IS" BASIS,
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* WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
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* See the License for the specific language governing permissions and
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* limitations under the License.
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*/
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#ifndef WHD_STA_INTERFACE_H
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#define WHD_STA_INTERFACE_H
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#include "mbed.h"
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#include "EthernetInterface.h"
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#include "netsocket/OnboardNetworkStack.h"
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#include "whd_emac.h"
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#include "whd_types_int.h"
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struct ol_desc;
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/** WhdSTAInterface class
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* Implementation of the NetworkStack for the WHD
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*/
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class WhdSTAInterface : public WiFiInterface, public EMACInterface
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{
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public:
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class OlmInterface
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{
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public:
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/** Get the default OLM interface. */
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static OlmInterface &get_default_instance();
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OlmInterface(struct ol_desc *list = NULL) {}
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virtual int init_ols(void *whd, void *ip) { return 0; }
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virtual int sleep() { return 0; }
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virtual int wake() { return 0; }
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virtual void deinit_ols(void) {}
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};
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WhdSTAInterface(
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WHD_EMAC &emac = WHD_EMAC::get_instance(),
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OnboardNetworkStack &stack = OnboardNetworkStack::get_default_instance(),
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OlmInterface &olm = OlmInterface::get_default_instance());
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static WhdSTAInterface *get_default_instance();
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/* Turn on the wifi device*/
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void wifi_on();
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/** Start the interface
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*
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* Attempts to connect to a WiFi network. Requires ssid and passphrase to be set.
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* If passphrase is invalid, NSAPI_ERROR_AUTH_ERROR is returned.
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*
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* @return 0 on success, negative error code on failure
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*/
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nsapi_error_t connect();
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/** Start the interface
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*
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* Attempts to connect to a WiFi network.
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*
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* @param ssid Name of the network to connect to
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* @param pass Security passphrase to connect to the network
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* @param security Type of encryption for connection (Default: NSAPI_SECURITY_NONE)
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* @param channel This parameter is not supported, setting it to anything else than 0 will result in NSAPI_ERROR_UNSUPPORTED
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* @return 0 on success, or error code on failure
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*/
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nsapi_error_t connect(const char *ssid, const char *pass, nsapi_security_t security = NSAPI_SECURITY_NONE, uint8_t channel = 0);
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/** Stop the interface
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* @return 0 on success, negative on failure
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*/
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nsapi_error_t disconnect();
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/** Set the WiFi network credentials
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*
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* @param ssid Name of the network to connect to
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* @param pass Security passphrase to connect to the network
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* @param security Type of encryption for connection
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* (defaults to NSAPI_SECURITY_NONE)
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* @return 0 on success, or error code on failure
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*/
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nsapi_error_t set_credentials(const char *ssid, const char *pass, nsapi_security_t security = NSAPI_SECURITY_NONE);
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/** Set the WiFi network channel - NOT SUPPORTED
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*
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* This function is not supported and will return NSAPI_ERROR_UNSUPPORTED
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*
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* @param channel Channel on which the connection is to be made, or 0 for any (Default: 0)
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* @return Not supported, returns NSAPI_ERROR_UNSUPPORTED
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*/
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nsapi_error_t set_channel(uint8_t channel) {
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if (channel != 0) {
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return NSAPI_ERROR_UNSUPPORTED;
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}
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return 0;
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}
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/** Gets the current radio signal strength for active connection
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*
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* @return Connection strength in dBm (negative value)
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*/
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int8_t get_rssi();
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/** Scan for available networks
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*
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* This function will block.
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*
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* @param ap Pointer to allocated array to store discovered AP
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* @param count Size of allocated @a res array, or 0 to only count available AP
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* @param timeout Timeout in milliseconds; 0 for no timeout (Default: 0)
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* @return Number of entries in @a, or if @a count was 0 number of available networks, negative on error
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* see @a nsapi_error
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*/
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int scan(WiFiAccessPoint *res, unsigned count);
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/* is interface connected, if yes return WICED_SUCCESS else WICED_NOT_CONNECTED */
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int is_interface_connected();
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/* get bssid of the AP if success return WICED_SUCCESS else WICED_ERROR */
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int get_bssid(uint8_t *bssid);
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/* print WHD log (this routine will malloc/free a buffer
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* You need to enable printing with WHD_LOGGING_BUFFER_ENABLE
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*/
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int whd_log_print ( void );
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/* read WHD log */
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int whd_log_read ( char *buffer, int buffer_size );
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/* Get EDCF AC params */
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nsapi_error_t wifi_get_ac_params_sta(void * ac_param );
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/* get iovar value */
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int wifi_get_iovar_value ( const char *iovar, uint32_t *value );
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/* set iovar value */
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int wifi_set_iovar_value ( const char *iovar, uint32_t value );
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/* set ioctl value */
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int wifi_set_ioctl_value( uint32_t ioctl, uint32_t value ) ;
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/* set wifi interface up */
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int wifi_set_up (void );
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/* set wifi interface down */
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int wifi_set_down (void );
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/** Set Offload Manager Information
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* NOTE: Only allowed while disconnected
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*
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* @param olm Offload Manager info structure
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* @return true if completed successfully
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* false if Interface is connected
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*/
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int set_olm(OlmInterface *olm) {
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if (get_connection_status() == NSAPI_STATUS_DISCONNECTED)
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{
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_olm = olm;
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return true;
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}
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return false;
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}
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/** Network stack is suspended
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*
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* @return 0 if successful
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*/
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int net_suspended() {
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int ret = _olm->sleep();
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return ret;
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}
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/** Network stack is resuming
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*
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* @return 0 if successful
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*/
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int net_resuming() {
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int ret = _olm->wake();
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return ret;
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}
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private:
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char _ssid[33]; /* The longest possible name (defined in 802.11) +1 for the \0 */
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char _pass[64]; /* The longest allowed passphrase + 1 */
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nsapi_security_t _security;
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WHD_EMAC& _whd_emac;
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OlmInterface *_olm;
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};
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extern int wiced_leave_ap ( int interface );
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#endif

‎features/netsocket/emac-drivers/TARGET_WHD/interface/WhdSoftAPInterface.cpp

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/* Wiced implementation of NetworkInterfaceAPI
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* Copyright (c) 2017 ARM Limited
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*
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* Licensed under the Apache License, Version 2.0 (the "License");
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* you may not use this file except in compliance with the License.
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* You may obtain a copy of the License at
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*
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* http://www.apache.org/licenses/LICENSE-2.0
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*
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* Unless required by applicable law or agreed to in writing, software
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* distributed under the License is distributed on an "AS IS" BASIS,
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* WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
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* See the License for the specific language governing permissions and
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* limitations under the License.
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*/
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#include "nsapi.h"
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#include "lwipopts.h"
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#include "WhdSoftAPInterface.h"
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#include "nsapi.h"
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#include "lwipopts.h"
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#include "lwip/etharp.h"
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#include "lwip/ethip6.h"
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#include "rtos.h"
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#include "whd_emac.h"
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#include "whd_wifi_api.h"
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extern int whd_toerror(whd_result_t res);
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extern nsapi_security_t whd_tosecurity(whd_security_t sec);
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extern whd_security_t whd_fromsecurity(nsapi_security_t sec);
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extern "C" void whd_emac_wifi_link_state_changed(bool state_up, whd_interface_t ifp);
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static const whd_event_num_t ap_client_events[] = { WLC_E_DEAUTH, WLC_E_DEAUTH_IND, WLC_E_DISASSOC, WLC_E_DISASSOC_IND, WLC_E_ASSOC_IND, WLC_E_REASSOC_IND, WLC_E_NONE };
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static uint16_t ap_event_entry = 2;
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WhdSoftAPInterface::WhdSoftAPInterface(WHD_EMAC &emac, OnboardNetworkStack &stack)
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: EMACInterface(emac, stack),
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_whd_emac(emac)
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{
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}
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int WhdSoftAPInterface::start(const char *ssid, const char *pass, nsapi_security_t security, uint8_t channel,
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bool start_dhcp_server, const whd_custom_ie_info_t* ie_info)
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{
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nsapi_error_t err;
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/* set up our interface */
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if (!_interface) {
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nsapi_error_t err = _stack.add_ethernet_interface(_emac, true, &_interface);
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if (err != NSAPI_ERROR_OK) {
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_interface = NULL;
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return err;
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}
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_interface->attach(_connection_status_cb);
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}
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// setup ssid
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whd_ssid_t whd_ssid;
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strncpy((char*)whd_ssid.value, ssid, SSID_NAME_SIZE);
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whd_ssid.value[SSID_NAME_SIZE-1] = '\0';
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whd_ssid.length = strlen((char*)whd_ssid.value);
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// choose network security
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whd_security_t whd_security = whd_fromsecurity(security);
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/* set up the AP info */
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err = whd_wifi_init_ap(_whd_emac.ifp, &whd_ssid, whd_security, (const uint8_t*)pass,
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strlen(pass), channel);
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if (err != NSAPI_ERROR_OK) {
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printf("whd_wifi_init_ap() ERROR: %d\n", err);
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return err;
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}
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if (ie_info) {
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err = whd_wifi_manage_custom_ie(_whd_emac.ifp, WHD_ADD_CUSTOM_IE, (const uint8_t *)ie_info->oui,
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ie_info->subtype, (const void *)ie_info->data, ie_info->length, ie_info->which_packets);
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if (err != NSAPI_ERROR_OK) {
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printf("whd_wifi_manage_custom_ie() ERROR: %d\n", err);
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return err;
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}
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}
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err = whd_wifi_start_ap(_whd_emac.ifp);
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if (err != NSAPI_ERROR_OK) {
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printf("whd_wifi_start_ap() ERROR: %d\n", err);
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return err;
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}
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// Set static IP address for SoftAP and bring up
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set_dhcp(false);
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if(whd_wifi_is_ready_to_transceive(_whd_emac.ifp) == WHD_SUCCESS) {
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whd_emac_wifi_link_state_changed(true, _whd_emac.ifp);
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}
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// bring up
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err = _interface->bringup(_dhcp,
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_ip_address[0] ? _ip_address : 0,
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_netmask[0] ? _netmask : 0,
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_gateway[0] ? _gateway : 0,
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DEFAULT_STACK);
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if (err != NSAPI_ERROR_OK) {
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printf("bringup() ERROR: %d\n", err);
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}
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return err;
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}
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int WhdSoftAPInterface::stop(void)
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{
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return whd_wifi_stop_ap(_whd_emac.ifp);
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}
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int WhdSoftAPInterface::remove_custom_ie(const whd_custom_ie_info_t* ie_info)
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{
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return whd_wifi_manage_custom_ie(_whd_emac.ifp, WHD_REMOVE_CUSTOM_IE, (const uint8_t *)ie_info->oui,
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ie_info->subtype, (const void *)ie_info->data, ie_info->length, ie_info->which_packets);
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}
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int WhdSoftAPInterface::get_associated_client_list(void* client_list_buffer, uint16_t buffer_length)
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{
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return whd_wifi_get_associated_client_list(_whd_emac.ifp, client_list_buffer, buffer_length);
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}
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int WhdSoftAPInterface::register_event_handler(whd_event_handler_t softap_event_handler)
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{
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return whd_management_set_event_handler(_whd_emac.ifp, ap_client_events, softap_event_handler, NULL, &ap_event_entry);
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}
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int WhdSoftAPInterface::unregister_event_handler(void)
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{
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return whd_wifi_deregister_event_handler(_whd_emac.ifp, ap_event_entry);
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}

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