/* * This file is part of the Micro Python project, http://micropython.org/ * * The MIT License (MIT) * * Copyright (c) 2015 Daniel Campora * * Permission is hereby granted, free of charge, to any person obtaining a copy * of this software and associated documentation files (the "Software"), to deal * in the Software without restriction, including without limitation the rights * to use, copy, modify, merge, publish, distribute, sublicense, and/or sell * copies of the Software, and to permit persons to whom the Software is * furnished to do so, subject to the following conditions: * * The above copyright notice and this permission notice shall be included in * all copies or substantial portions of the Software. * * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY, * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE * AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER * LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, * OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN * THE SOFTWARE. */ #include "std.h" #include #include #include "simplelink.h" #include "mpconfig.h" #include MICROPY_HAL_H #include "misc.h" #include "nlr.h" #include "qstr.h" #include "obj.h" #include "objtuple.h" #include "objlist.h" #include "runtime.h" #include "modnetwork.h" #include "modwlan.h" #include "pybioctl.h" #include "pybuart.h" #include "osi.h" #include "debug.h" #include "serverstask.h" #include "mpexception.h" #ifdef USE_FREERTOS #include "FreeRTOS.h" #include "task.h" #include "semphr.h" #endif /****************************************************************************** DEFINE TYPES ******************************************************************************/ // Status bits - These are used to set/reset the corresponding bits in a given variable typedef enum{ STATUS_BIT_NWP_INIT = 0, // If this bit is set: Network Processor is // powered up STATUS_BIT_CONNECTION, // If this bit is set: the device is connected to // the AP or client is connected to device (AP) STATUS_BIT_IP_LEASED, // If this bit is set: the device has leased IP to // any connected client STATUS_BIT_IP_ACQUIRED, // If this bit is set: the device has acquired an IP STATUS_BIT_SMARTCONFIG_START, // If this bit is set: the SmartConfiguration // process is started from SmartConfig app STATUS_BIT_P2P_DEV_FOUND, // If this bit is set: the device (P2P mode) // found any p2p-device in scan STATUS_BIT_P2P_REQ_RECEIVED, // If this bit is set: the device (P2P mode) // found any p2p-negotiation request STATUS_BIT_CONNECTION_FAILED, // If this bit is set: the device(P2P mode) // connection to client(or reverse way) is failed STATUS_BIT_PING_DONE // If this bit is set: the device has completed // the ping operation }e_StatusBits; typedef struct _wlan_obj_t { mp_obj_base_t base; SlWlanMode_t mode; uint32_t status; uint8_t macAddr[SL_MAC_ADDR_LEN]; uint8_t ssid_name[33]; uint8_t bssid[6]; bool servers_enabled; // IPVv4 data uint32_t ip; uint32_t gateway; uint32_t dns; } wlan_obj_t; /****************************************************************************** DEFINE CONSTANTS ******************************************************************************/ #define CLR_STATUS_BIT_ALL(status) (status = 0) #define SET_STATUS_BIT(status, bit) (status |= ( 1 << (bit))) #define CLR_STATUS_BIT(status, bit) (status &= ~(1 << (bit))) #define GET_STATUS_BIT(status, bit) (0 != (status & (1 << (bit)))) #define IS_NW_PROCSR_ON(status) GET_STATUS_BIT(status, STATUS_BIT_NWP_INIT) #define IS_CONNECTED(status) GET_STATUS_BIT(status, STATUS_BIT_CONNECTION) #define IS_IP_LEASED(status) GET_STATUS_BIT(status, STATUS_BIT_IP_LEASED) #define IS_IP_ACQUIRED(status) GET_STATUS_BIT(status, STATUS_BIT_IP_ACQUIRED) #define IS_SMART_CFG_START(status) GET_STATUS_BIT(status, STATUS_BIT_SMARTCONFIG_START) #define IS_P2P_DEV_FOUND(status) GET_STATUS_BIT(status, STATUS_BIT_P2P_DEV_FOUND) #define IS_P2P_REQ_RCVD(status) GET_STATUS_BIT(status, STATUS_BIT_P2P_REQ_RECEIVED) #define IS_CONNECT_FAILED(status) GET_STATUS_BIT(status, STATUS_BIT_CONNECTION_FAILED) #define IS_PING_DONE(status) GET_STATUS_BIT(status, STATUS_BIT_PING_DONE) #define MODWLAN_SL_SCAN_ENABLE 1 #define MODWLAN_SL_SCAN_DISABLE 0 #define MODWLAN_SL_MAX_NETWORKS 20 #define MODWLAN_TIMEOUT_MS 5000 #define MODWLAN_MAX_NETWORKS 20 #define ASSERT_ON_ERROR( x ) ASSERT((x) >= 0 ) #define IPV4_ADDR_STR_LEN_MAX (16) #define SL_STOP_TIMEOUT 250 #define WLAN_MAX_RX_SIZE 16000 #define MAKE_SOCKADDR(addr, ip, port) sockaddr addr; \ addr.sa_family = AF_INET; \ addr.sa_data[0] = port >> 8; \ addr.sa_data[1] = port; \ addr.sa_data[2] = ip[0]; \ addr.sa_data[3] = ip[1]; \ addr.sa_data[4] = ip[2]; \ addr.sa_data[5] = ip[3]; #define UNPACK_SOCKADDR(addr, ip, port) port = (addr.sa_data[0] << 8) | addr.sa_data[1]; \ ip[0] = addr.sa_data[2]; \ ip[1] = addr.sa_data[3]; \ ip[2] = addr.sa_data[4]; \ ip[3] = addr.sa_data[5]; /****************************************************************************** DECLARE PUBLIC DATA ******************************************************************************/ STATIC wlan_obj_t wlan_obj; /****************************************************************************** DECLARE EXPORTED DATA ******************************************************************************/ SemaphoreHandle_t xWlanSemaphore = NULL; /****************************************************************************** DECLARE PRIVATE FUNCTIONS ******************************************************************************/ STATIC void wlan_initialize_data (void); STATIC void wlan_reenable (SlWlanMode_t mode); STATIC void wlan_get_sl_mac (void); STATIC modwlan_Status_t wlan_do_connect (const char* ssid, uint32_t ssid_len, const char* bssid, uint8_t sec, const char* key, uint32_t key_len); //***************************************************************************** // //! \brief The Function Handles WLAN Events //! //! \param[in] pWlanEvent - Pointer to WLAN Event Info //! //! \return None //! //***************************************************************************** void SimpleLinkWlanEventHandler(SlWlanEvent_t *pWlanEvent) { if(!pWlanEvent) { return; } switch(pWlanEvent->Event) { case SL_WLAN_CONNECT_EVENT: { SET_STATUS_BIT(wlan_obj.status, STATUS_BIT_CONNECTION); // // Information about the connected AP (like name, MAC etc) will be // available in 'slWlanConnectAsyncResponse_t'-Applications // can use it if required // slWlanConnectAsyncResponse_t *pEventData = &pWlanEvent->EventData.STAandP2PModeWlanConnected; // Copy new connection SSID and BSSID to global parameters memcpy(wlan_obj.ssid_name, pEventData->ssid_name, pEventData->ssid_len); memcpy(wlan_obj.bssid, pEventData->bssid, SL_BSSID_LENGTH); } break; case SL_WLAN_DISCONNECT_EVENT: { slWlanConnectAsyncResponse_t* pEventData = NULL; CLR_STATUS_BIT(wlan_obj.status, STATUS_BIT_CONNECTION); CLR_STATUS_BIT(wlan_obj.status, STATUS_BIT_IP_ACQUIRED); pEventData = &pWlanEvent->EventData.STAandP2PModeDisconnected; // If the user has initiated the 'Disconnect' request, //'reason_code' is SL_USER_INITIATED_DISCONNECTION if (SL_USER_INITIATED_DISCONNECTION == pEventData->reason_code) { } else { } memset(wlan_obj.ssid_name, 0, sizeof(wlan_obj.ssid_name)); memset(wlan_obj.bssid, 0, sizeof(wlan_obj.bssid)); } break; case SL_WLAN_STA_CONNECTED_EVENT: break; case SL_WLAN_STA_DISCONNECTED_EVENT: break; case SL_WLAN_P2P_DEV_FOUND_EVENT: break; case SL_WLAN_P2P_NEG_REQ_RECEIVED_EVENT: break; case SL_WLAN_CONNECTION_FAILED_EVENT: break; default: break; } } //***************************************************************************** // //! \brief This function handles network events such as IP acquisition, IP //! leased, IP released etc. //! //! \param[in] pNetAppEvent - Pointer to NetApp Event Info //! //! \return None //! //***************************************************************************** void SimpleLinkNetAppEventHandler(SlNetAppEvent_t *pNetAppEvent) { if(!pNetAppEvent) { return; } switch(pNetAppEvent->Event) { case SL_NETAPP_IPV4_IPACQUIRED_EVENT: { SlIpV4AcquiredAsync_t *pEventData = NULL; SET_STATUS_BIT(wlan_obj.status, STATUS_BIT_IP_ACQUIRED); // Ip Acquired Event Data pEventData = &pNetAppEvent->EventData.ipAcquiredV4; // Get the IP addresses wlan_obj.gateway = ntohl(pEventData->gateway); wlan_obj.ip = ntohl(pEventData->ip); wlan_obj.dns = ntohl(pEventData->dns); } break; case SL_NETAPP_IPV6_IPACQUIRED_EVENT: break; case SL_NETAPP_IP_LEASED_EVENT: break; case SL_NETAPP_IP_RELEASED_EVENT: break; default: break; } } //***************************************************************************** // //! \brief This function handles HTTP server events //! //! \param[in] pServerEvent - Contains the relevant event information //! \param[in] pServerResponse - Should be filled by the user with the //! relevant response information //! //! \return None //! //**************************************************************************** void SimpleLinkHttpServerCallback(SlHttpServerEvent_t *pHttpEvent, SlHttpServerResponse_t *pHttpResponse) { if (!pHttpEvent) { return; } switch (pHttpEvent->Event) { case SL_NETAPP_HTTPGETTOKENVALUE_EVENT: break; case SL_NETAPP_HTTPPOSTTOKENVALUE_EVENT: break; default: break; } } //***************************************************************************** // //! \brief This function handles General Events //! //! \param[in] pDevEvent - Pointer to General Event Info //! //! \return None //! //***************************************************************************** void SimpleLinkGeneralEventHandler(SlDeviceEvent_t *pDevEvent) { if (!pDevEvent) { return; } ASSERT (false); } //***************************************************************************** // //! This function handles socket events indication //! //! \param[in] pSock - Pointer to Socket Event Info //! //! \return None //! //***************************************************************************** void SimpleLinkSockEventHandler(SlSockEvent_t *pSock) { if (!pSock) { return; } switch( pSock->Event ) { case SL_SOCKET_TX_FAILED_EVENT: break; default: break; } } //***************************************************************************** // SimpleLink Asynchronous Event Handlers -- End //***************************************************************************** void wlan_init0 (void) { // Set the mode to an invalid one wlan_obj.mode = -1; wlan_obj.base.type = NULL; memset (wlan_obj.macAddr, 0, SL_MAC_ADDR_LEN); #ifdef USE_FREERTOS if (NULL == xWlanSemaphore) { xWlanSemaphore = xSemaphoreCreateBinary(); } #endif wlan_initialize_data (); } modwlan_Status_t wlan_sl_enable (SlWlanMode_t mode, const char *ssid, uint8_t ssid_len, uint8_t sec, const char *key, uint8_t key_len, uint8_t channel) { if (mode == ROLE_STA || mode == ROLE_AP || mode == ROLE_P2P) { if (wlan_obj.mode < 0) { wlan_obj.mode = sl_Start(0, 0, 0); #ifdef USE_FREERTOS xSemaphoreGive (xWlanSemaphore); #endif } // get the mac address wlan_get_sl_mac(); // stop the device if it's not in station mode if (wlan_obj.mode != ROLE_STA) { if (ROLE_AP == wlan_obj.mode) { // if the device is in AP mode, we need to wait for this event // before doing anything while (!IS_IP_ACQUIRED(wlan_obj.status)) { HAL_Delay (5); } } // switch to STA mode ASSERT_ON_ERROR(sl_WlanSetMode(ROLE_STA)); // stop and start again wlan_reenable(ROLE_STA); } // Device in station-mode. Disconnect previous connection if any // The function returns 0 if 'Disconnected done', negative number if already // disconnected Wait for 'disconnection' event if 0 is returned, Ignore // other return-codes if (0 == sl_WlanDisconnect()) { while (IS_CONNECTED (wlan_obj.status)) { HAL_Delay (5); } } // clear wlan data after checking any of the status flags wlan_initialize_data (); // Set connection policy to Auto + SmartConfig (Device's default connection policy) ASSERT_ON_ERROR(sl_WlanPolicySet(SL_POLICY_CONNECTION, SL_CONNECTION_POLICY(1, 0, 0, 0, 1), NULL, 0)); // Remove all profiles ASSERT_ON_ERROR(sl_WlanProfileDel(0xFF)); // Enable the DHCP client uint8_t value = 1; ASSERT_ON_ERROR(sl_NetCfgSet(SL_IPV4_STA_P2P_CL_DHCP_ENABLE, 1, 1, &value)); // Set PM policy to normal ASSERT_ON_ERROR(sl_WlanPolicySet(SL_POLICY_PM, SL_NORMAL_POLICY, NULL, 0)); // Unregister mDNS services ASSERT_ON_ERROR(sl_NetAppMDNSUnRegisterService(0, 0)); // Remove all 64 filters (8 * 8) _WlanRxFilterOperationCommandBuff_t RxFilterIdMask; memset ((void *)&RxFilterIdMask, 0 ,sizeof(RxFilterIdMask)); memset(RxFilterIdMask.FilterIdMask, 0xFF, 8); ASSERT_ON_ERROR(sl_WlanRxFilterSet(SL_REMOVE_RX_FILTER, (_u8 *)&RxFilterIdMask, sizeof(_WlanRxFilterOperationCommandBuff_t))); // Set Tx power level for station or AP mode // Number between 0-15, as dB offset from max power - 0 will set max power uint8_t ucPower = 0; if (mode == ROLE_AP) { // Disable the scanning ASSERT_ON_ERROR(sl_WlanPolicySet(SL_POLICY_SCAN, MODWLAN_SL_SCAN_DISABLE, NULL, 0)); // Switch to AP mode ASSERT_ON_ERROR(sl_WlanSetMode(mode)); ASSERT (ssid != NULL && key != NULL); ASSERT_ON_ERROR(sl_WlanSet(SL_WLAN_CFG_GENERAL_PARAM_ID, WLAN_GENERAL_PARAM_OPT_AP_TX_POWER, sizeof(ucPower), (unsigned char *)&ucPower)); ASSERT_ON_ERROR(sl_WlanSet(SL_WLAN_CFG_AP_ID, WLAN_AP_OPT_SSID, ssid_len, (unsigned char *)ssid)); ASSERT_ON_ERROR(sl_WlanSet(SL_WLAN_CFG_AP_ID, WLAN_AP_OPT_SECURITY_TYPE, sizeof(uint8_t), &sec)); ASSERT_ON_ERROR(sl_WlanSet(SL_WLAN_CFG_AP_ID, WLAN_AP_OPT_PASSWORD, key_len, (unsigned char *)key)); _u8* country = (_u8*)"EU"; ASSERT_ON_ERROR(sl_WlanSet(SL_WLAN_CFG_GENERAL_PARAM_ID, WLAN_GENERAL_PARAM_OPT_COUNTRY_CODE, 2, country)); ASSERT_ON_ERROR(sl_WlanSet(SL_WLAN_CFG_AP_ID, WLAN_AP_OPT_CHANNEL, 1, (_u8 *)&channel)); // Stop and start again wlan_reenable(mode); ASSERT (wlan_obj.mode == mode); SlNetAppDhcpServerBasicOpt_t dhcpParams; dhcpParams.lease_time = 4096; // lease time (in seconds) of the IP Address dhcpParams.ipv4_addr_start = SL_IPV4_VAL(192,168,1,2); // first IP Address for allocation. dhcpParams.ipv4_addr_last = SL_IPV4_VAL(192,168,1,254); // last IP Address for allocation. ASSERT_ON_ERROR(sl_NetAppStop(SL_NET_APP_DHCP_SERVER_ID)); // Stop DHCP server before settings ASSERT_ON_ERROR(sl_NetAppSet(SL_NET_APP_DHCP_SERVER_ID, NETAPP_SET_DHCP_SRV_BASIC_OPT, sizeof(SlNetAppDhcpServerBasicOpt_t), (_u8* )&dhcpParams)); // set parameters ASSERT_ON_ERROR(sl_NetAppStart(SL_NET_APP_DHCP_SERVER_ID)); // Start DHCP server with new settings SlNetCfgIpV4Args_t ipV4; ipV4.ipV4 = (_u32)SL_IPV4_VAL(192,168,1,1); // _u32 IP address ipV4.ipV4Mask = (_u32)SL_IPV4_VAL(255,255,255,0); // _u32 Subnet mask for this AP ipV4.ipV4Gateway = (_u32)SL_IPV4_VAL(192,168,1,1); // _u32 Default gateway address ipV4.ipV4DnsServer = (_u32)SL_IPV4_VAL(192,168,1,1); // _u32 DNS server address ASSERT_ON_ERROR(sl_NetCfgSet(SL_IPV4_AP_P2P_GO_STATIC_ENABLE, IPCONFIG_MODE_ENABLE_IPV4, sizeof(SlNetCfgIpV4Args_t), (_u8 *)&ipV4)); // Stop and start again wlan_reenable(mode); } // STA and P2P modes else { ASSERT_ON_ERROR(sl_WlanSet(SL_WLAN_CFG_GENERAL_PARAM_ID, WLAN_GENERAL_PARAM_OPT_STA_TX_POWER, sizeof(ucPower), (unsigned char *)&ucPower)); // Enable scanning every 60 seconds uint32_t scanSeconds = 60; ASSERT_ON_ERROR(sl_WlanPolicySet(SL_POLICY_SCAN , MODWLAN_SL_SCAN_ENABLE, (_u8 *)&scanSeconds, sizeof(scanSeconds))); if (mode == ROLE_P2P) { // Switch to P2P mode ASSERT_ON_ERROR(sl_WlanSetMode(mode)); // Stop and start again wlan_reenable(mode); } } return MODWLAN_OK; } return MODWLAN_ERROR_INVALID_PARAMS; } void wlan_sl_disable (void) { if (wlan_obj.mode >= 0) { #ifdef USE_FREERTOS xSemaphoreTake (xWlanSemaphore, portMAX_DELAY); #endif wlan_obj.mode = -1; sl_Stop(SL_STOP_TIMEOUT); } } SlWlanMode_t wlan_get_mode (void) { return wlan_obj.mode; } void wlan_get_mac (uint8_t *macAddress) { if (macAddress) { memcpy (macAddress, wlan_obj.macAddr, SL_MAC_ADDR_LEN); } } void wlan_get_ip (uint32_t *ip) { if (ip) { *ip = IS_IP_ACQUIRED(wlan_obj.status) ? wlan_obj.ip : 0; } } void wlan_set_pm_policy (uint8_t policy) { ASSERT_ON_ERROR(sl_WlanPolicySet(SL_POLICY_PM, policy, NULL, 0)); } void wlan_servers_stop (void) { servers_disable(); do { HAL_Delay (2); } while (servers_are_enabled()); } //***************************************************************************** // DEFINE STATIC FUNCTIONS //***************************************************************************** STATIC void wlan_initialize_data (void) { wlan_obj.status = 0; wlan_obj.dns = 0; wlan_obj.gateway = 0; wlan_obj.ip = 0; memset(wlan_obj.ssid_name, 0, sizeof(wlan_obj.ssid_name)); memset(wlan_obj.bssid, 0, sizeof(wlan_obj.bssid)); } STATIC void wlan_reenable (SlWlanMode_t mode) { // Stop and start again wlan_obj.mode = -1; #ifdef USE_FREERTOS xSemaphoreTake (xWlanSemaphore, portMAX_DELAY); #endif sl_Stop(SL_STOP_TIMEOUT); wlan_obj.mode = sl_Start(0, 0, 0); #ifdef USE_FREERTOS xSemaphoreGive (xWlanSemaphore); #endif ASSERT (wlan_obj.mode == mode); } STATIC modwlan_Status_t wlan_do_connect (const char* ssid, uint32_t ssid_len, const char* bssid, uint8_t sec, const char* key, uint32_t key_len) { SlSecParams_t secParams; secParams.Key = (_i8*)key; secParams.KeyLen = ((key != NULL) ? key_len : 0); secParams.Type = sec; if (0 == sl_WlanConnect((_i8*)ssid, ssid_len, (_u8*)bssid, &secParams, NULL)) { // Wait for WLAN Event uint32_t waitForConnectionMs = 0; while (!IS_CONNECTED(wlan_obj.status)) { HAL_Delay (5); if (++waitForConnectionMs >= MODWLAN_TIMEOUT_MS) { return MODWLAN_ERROR_TIMEOUT; } } return MODWLAN_OK; } return MODWLAN_ERROR_INVALID_PARAMS; } STATIC void wlan_get_sl_mac (void) { // Get the MAC address uint8_t macAddrLen = SL_MAC_ADDR_LEN; sl_NetCfgGet(SL_MAC_ADDRESS_GET,NULL, &macAddrLen, wlan_obj.macAddr); } /// \method init(mode, ssid=myWlan, security=wlan.WPA_WPA2, key=myWlanKey) /// /// Initialise the UART bus with the given parameters: /// /// - `mode` can be ROLE_AP, ROLE_STA and ROLE_P2P. /// - `ssid` is the network ssid in case of AP mode /// - `security` is the security type for AP mode /// - `key` is the key when in AP mode /// - `channel` is the channel to use for the AP network STATIC const mp_arg_t wlan_init_args[] = { { MP_QSTR_mode, MP_ARG_REQUIRED | MP_ARG_INT, {.u_int = ROLE_STA} }, { MP_QSTR_ssid, MP_ARG_KW_ONLY | MP_ARG_OBJ, {.u_obj = mp_const_none} }, { MP_QSTR_security, MP_ARG_KW_ONLY | MP_ARG_INT, {.u_int = SL_SEC_TYPE_OPEN} }, { MP_QSTR_key, MP_ARG_KW_ONLY | MP_ARG_OBJ, {.u_obj = mp_const_none} }, { MP_QSTR_channel, MP_ARG_KW_ONLY | MP_ARG_INT, {.u_int = 5} }, }; STATIC mp_obj_t wlan_init_helper(mp_uint_t n_args, const mp_obj_t *pos_args, mp_map_t *kw_args) { // parse args mp_arg_val_t args[MP_ARRAY_SIZE(wlan_init_args)]; mp_arg_parse_all(n_args, pos_args, kw_args, MP_ARRAY_SIZE(wlan_init_args), wlan_init_args, args); // get the ssid mp_uint_t ssid_len; const char *ssid = mp_obj_str_get_data(args[1].u_obj, &ssid_len); // get the key mp_uint_t key_len; const char *key = mp_obj_str_get_data(args[3].u_obj, &key_len); if (key_len < 8) { nlr_raise(mp_obj_new_exception_msg(&mp_type_TypeError, mpexception_value_invalid_arguments)); } // Force the channel to be between 1-11 uint8_t channel = args[4].u_int > 0 ? args[4].u_int % 12 : 1; if (MODWLAN_OK != wlan_sl_enable (args[0].u_int, ssid, ssid_len, args[2].u_int, key, key_len, channel)) { nlr_raise(mp_obj_new_exception_msg(&mp_type_OSError, mpexception_os_operation_failed)); } return mp_const_none; } /******************************************************************************/ // Micro Python bindings; WLAN class /// \class WLAN - driver for the WLAN functionality of the SoC /// \classmethod \constructor() /// Create a wlan obecjt and initialise the simplelink engine // STATIC mp_obj_t wlan_make_new (mp_obj_t type_in, mp_uint_t n_args, mp_uint_t n_kw, const mp_obj_t *args) { // check arguments mp_arg_check_num(n_args, n_kw, 0, MP_ARRAY_SIZE(wlan_init_args), true); if (n_args > 0) { // Get the mode SlWlanMode_t mode = mp_obj_get_int(args[0]); // Stop all other processes using the wlan engine if ( (wlan_obj.servers_enabled = servers_are_enabled()) ) { wlan_servers_stop(); } if (mode == ROLE_AP) { // start the peripheral mp_map_t kw_args; mp_map_init_fixed_table(&kw_args, n_kw, args + n_args); wlan_init_helper(n_args, args, &kw_args); } // TODO: Only STA mode supported for the moment. What if P2P? else if (n_args == 1) { if (MODWLAN_OK != wlan_sl_enable (mode, NULL, 0, 0, NULL, 0, 0)) { nlr_raise(mp_obj_new_exception_msg(&mp_type_OSError, mpexception_os_operation_failed)); } } else { nlr_raise(mp_obj_new_exception_msg(&mp_type_TypeError, mpexception_num_type_invalid_arguments)); } // Start the servers again if (wlan_obj.servers_enabled) { servers_enable (); } } else if (wlan_obj.mode < 0) { nlr_raise(mp_obj_new_exception_msg(&mp_type_TypeError, mpexception_num_type_invalid_arguments)); } wlan_obj.base.type = (mp_obj_type_t*)&mod_network_nic_type_wlan; // register with the network module mod_network_register_nic(&wlan_obj); return &wlan_obj; } STATIC void wlan_print(void (*print)(void *env, const char *fmt, ...), void *env, mp_obj_t self_in, mp_print_kind_t kind) { wlan_obj_t *self = self_in; print(env, "wlan(mode=%u, status=%u", self->mode, self->status); print(env, ", mac=%02x:%02x:%02x:%02x:%02x:%02x", self->macAddr[0], self->macAddr[1], self->macAddr[2], self->macAddr[3], self->macAddr[4], self->macAddr[5]); // Only print the ssid if in station or ap mode if (self->mode == ROLE_STA || self->mode == ROLE_AP) { print(env, ", ssid=%s", self->ssid_name); // Only print the bssid if in station mode if (self->mode == ROLE_STA) { print(env, ", bssid=%02x:%02x:%02x:%02x:%02x:%02x", self->bssid[0], self->bssid[1], self->bssid[2], self->bssid[3], self->bssid[4], self->bssid[5]); } char ip_str[IPV4_ADDR_STR_LEN_MAX]; uint8_t *ip = (uint8_t *)&self->ip; snprintf(ip_str, 16, "%u.%u.%u.%u", ip[0], ip[1], ip[2], ip[3]); print(env, ", ip=%s", ip_str); ip = (uint8_t *)&self->gateway; snprintf(ip_str, 16, "%u.%u.%u.%u", ip[0], ip[1], ip[2], ip[3]); print(env, ", gateway=%s", ip_str); ip = (uint8_t *)&self->dns; snprintf(ip_str, 16, "%u.%u.%u.%u", ip[0], ip[1], ip[2], ip[3]); print(env, ", dns=%s)", ip_str); } else { print(env, ")"); } } /// \method mode() /// Get the wlan mode: /// /// - Returns the current wlan mode. Possible values are: /// ROLE_STA, ROLE_AP and ROLE_P2P /// STATIC mp_obj_t wlan_getmode(mp_obj_t self_in) { wlan_obj_t* self = self_in; return mp_obj_new_int(self->mode); } STATIC MP_DEFINE_CONST_FUN_OBJ_1(wlan_getmode_obj, wlan_getmode); STATIC mp_obj_t wlan_setpm(mp_obj_t self_in, mp_obj_t pm_mode) { mp_int_t mode = mp_obj_get_int(pm_mode); if (mode < SL_NORMAL_POLICY || mode > SL_LONG_SLEEP_INTERVAL_POLICY) { nlr_raise(mp_obj_new_exception_msg(&mp_type_ValueError, mpexception_value_invalid_arguments)); } wlan_set_pm_policy((uint8_t)mode); return mp_const_none; } STATIC MP_DEFINE_CONST_FUN_OBJ_2(wlan_setpm_obj, wlan_setpm); /// \method connect(ssid, key=None, *, security=OPEN, bssid=None) STATIC mp_obj_t wlan_connect(mp_uint_t n_args, const mp_obj_t *pos_args, mp_map_t *kw_args) { STATIC const mp_arg_t allowed_args[] = { { MP_QSTR_ssid, MP_ARG_REQUIRED | MP_ARG_OBJ, {.u_obj = MP_OBJ_NULL} }, { MP_QSTR_key, MP_ARG_KW_ONLY | MP_ARG_OBJ, {.u_obj = mp_const_none} }, { MP_QSTR_security, MP_ARG_KW_ONLY | MP_ARG_INT, {.u_int = SL_SEC_TYPE_OPEN} }, { MP_QSTR_bssid, MP_ARG_KW_ONLY | MP_ARG_OBJ, {.u_obj = mp_const_none} }, }; // parse args mp_arg_val_t args[MP_ARRAY_SIZE(allowed_args)]; mp_arg_parse_all(n_args - 1, pos_args + 1, kw_args, MP_ARRAY_SIZE(allowed_args), allowed_args, args); // get ssid mp_uint_t ssid_len; const char *ssid = mp_obj_str_get_data(args[0].u_obj, &ssid_len); // get key and sec mp_uint_t key_len = 0; const char *key = NULL; mp_uint_t sec = SL_SEC_TYPE_OPEN; if (args[1].u_obj != mp_const_none) { key = mp_obj_str_get_data(args[1].u_obj, &key_len); sec = args[2].u_int; } // get bssid const char *bssid = NULL; if (args[3].u_obj != mp_const_none) { bssid = mp_obj_str_get_str(args[3].u_obj); } if (wlan_obj.mode != ROLE_STA) { nlr_raise(mp_obj_new_exception_msg(&mp_type_OSError, mpexception_os_request_not_possible)); } else { if (GET_STATUS_BIT(wlan_obj.status, STATUS_BIT_CONNECTION)) { if (0 == sl_WlanDisconnect()) { while (IS_CONNECTED(wlan_obj.status)) { HAL_Delay (5); } } } // connect to the requested access point modwlan_Status_t status; status = wlan_do_connect (ssid, ssid_len, bssid, sec, key, key_len); if (status != MODWLAN_OK) { nlr_raise(mp_obj_new_exception_msg(&mp_type_OSError, mpexception_os_operation_failed)); } } return mp_const_none; } STATIC MP_DEFINE_CONST_FUN_OBJ_KW(wlan_connect_obj, 1, wlan_connect); /// \method wlan_disconnect() /// Closes the current WLAN connection /// STATIC mp_obj_t wlan_disconnect(mp_obj_t self_in) { sl_WlanDisconnect(); return mp_const_none; } STATIC MP_DEFINE_CONST_FUN_OBJ_1(wlan_disconnect_obj, wlan_disconnect); /// \method is_connected() /// Returns true if connected to the AP and an IP address has been assigned. False otherwise. /// STATIC mp_obj_t wlan_isconnected(mp_obj_t self_in) { if (GET_STATUS_BIT(wlan_obj.status, STATUS_BIT_CONNECTION) && GET_STATUS_BIT(wlan_obj.status, STATUS_BIT_IP_ACQUIRED)) { return mp_const_true; } return mp_const_false; } STATIC MP_DEFINE_CONST_FUN_OBJ_1(wlan_isconnected_obj, wlan_isconnected); /// \method getip() /// Get the IP /// /// - Returns the acquired IP address /// STATIC mp_obj_t wlan_getip(mp_obj_t self_in) { return mod_network_format_ipv4_addr ((uint8_t *)&wlan_obj.ip); } STATIC MP_DEFINE_CONST_FUN_OBJ_1(wlan_getip_obj, wlan_getip); /// \method wlan_netlist() /// Returns a list of tuples with all the acces points within range STATIC mp_obj_t wlan_scan(mp_obj_t self_in) { Sl_WlanNetworkEntry_t wlanEntry; uint8_t _index = 0; mp_obj_t nets = NULL; do { if (sl_WlanGetNetworkList(_index++, 1, &wlanEntry) <= 0) { break; } mp_obj_t tuple[4]; tuple[0] = mp_obj_new_str((const char *)wlanEntry.ssid, wlanEntry.ssid_len, false); tuple[1] = mp_obj_new_str((const char *)wlanEntry.bssid, SL_BSSID_LENGTH, false); // 'Normalize' the security type if (wlanEntry.sec_type > 2) { wlanEntry.sec_type = 2; } tuple[2] = mp_obj_new_int(wlanEntry.sec_type); tuple[3] = mp_obj_new_int(wlanEntry.rssi); if (_index == 1) { // Initialize the set nets = mp_obj_new_set(0, NULL); } // Add the network found to the list if it's unique mp_obj_set_store(nets, mp_obj_new_tuple(4, tuple)); } while (_index < MODWLAN_SL_MAX_NETWORKS); return (nets != NULL) ? nets : mp_const_none; } STATIC MP_DEFINE_CONST_FUN_OBJ_1(wlan_scan_obj, wlan_scan); STATIC mp_obj_t wlan_serversstart(mp_obj_t self_in) { servers_enable(); return mp_const_none; } STATIC MP_DEFINE_CONST_FUN_OBJ_1(wlan_serversstart_obj, wlan_serversstart); STATIC mp_obj_t wlan_serversstop(mp_obj_t self_in) { wlan_servers_stop(); return mp_const_none; } STATIC MP_DEFINE_CONST_FUN_OBJ_1(wlan_serversstop_obj, wlan_serversstop); STATIC mp_obj_t wlan_areserversenabled(mp_obj_t self_in) { return MP_BOOL(servers_are_enabled()); } STATIC MP_DEFINE_CONST_FUN_OBJ_1(wlan_areserversenabled_obj, wlan_areserversenabled); STATIC mp_obj_t wlan_serversuserpass(mp_obj_t self_in, mp_obj_t user, mp_obj_t pass) { const char *_user = mp_obj_str_get_str(user); const char *_pass = mp_obj_str_get_str(pass); servers_set_user_pass((char *)_user, (char *)_pass); return mp_const_none; } STATIC MP_DEFINE_CONST_FUN_OBJ_3(wlan_serversuserpass_obj, wlan_serversuserpass); STATIC const mp_map_elem_t wlan_locals_dict_table[] = { { MP_OBJ_NEW_QSTR(MP_QSTR_connect), (mp_obj_t)&wlan_connect_obj }, { MP_OBJ_NEW_QSTR(MP_QSTR_getmode), (mp_obj_t)&wlan_getmode_obj }, { MP_OBJ_NEW_QSTR(MP_QSTR_setpm), (mp_obj_t)&wlan_setpm_obj }, { MP_OBJ_NEW_QSTR(MP_QSTR_scan), (mp_obj_t)&wlan_scan_obj }, { MP_OBJ_NEW_QSTR(MP_QSTR_disconnect), (mp_obj_t)&wlan_disconnect_obj }, { MP_OBJ_NEW_QSTR(MP_QSTR_isconnected), (mp_obj_t)&wlan_isconnected_obj }, { MP_OBJ_NEW_QSTR(MP_QSTR_getip), (mp_obj_t)&wlan_getip_obj }, { MP_OBJ_NEW_QSTR(MP_QSTR_serversstart), (mp_obj_t)&wlan_serversstart_obj }, { MP_OBJ_NEW_QSTR(MP_QSTR_serversstop), (mp_obj_t)&wlan_serversstop_obj }, { MP_OBJ_NEW_QSTR(MP_QSTR_areserversenabled), (mp_obj_t)&wlan_areserversenabled_obj }, { MP_OBJ_NEW_QSTR(MP_QSTR_serversuserpass), (mp_obj_t)&wlan_serversuserpass_obj }, // class constants { MP_OBJ_NEW_QSTR(MP_QSTR_OPEN), MP_OBJ_NEW_SMALL_INT(SL_SEC_TYPE_OPEN) }, { MP_OBJ_NEW_QSTR(MP_QSTR_WEP), MP_OBJ_NEW_SMALL_INT(SL_SEC_TYPE_WEP) }, { MP_OBJ_NEW_QSTR(MP_QSTR_WPA_WPA2), MP_OBJ_NEW_SMALL_INT(SL_SEC_TYPE_WPA_WPA2) }, { MP_OBJ_NEW_QSTR(MP_QSTR_WPA_ENT), MP_OBJ_NEW_SMALL_INT(SL_SEC_TYPE_WPA_ENT) }, { MP_OBJ_NEW_QSTR(MP_QSTR_WPS_PBC), MP_OBJ_NEW_SMALL_INT(SL_SEC_TYPE_WPS_PBC) }, { MP_OBJ_NEW_QSTR(MP_QSTR_WPS_PIN), MP_OBJ_NEW_SMALL_INT(SL_SEC_TYPE_WPS_PIN) }, { MP_OBJ_NEW_QSTR(MP_QSTR_STA), MP_OBJ_NEW_SMALL_INT(ROLE_STA) }, { MP_OBJ_NEW_QSTR(MP_QSTR_AP), MP_OBJ_NEW_SMALL_INT(ROLE_AP) }, { MP_OBJ_NEW_QSTR(MP_QSTR_P2P), MP_OBJ_NEW_SMALL_INT(ROLE_P2P) }, { MP_OBJ_NEW_QSTR(MP_QSTR_NORMAL_PM), MP_OBJ_NEW_SMALL_INT(SL_NORMAL_POLICY) }, { MP_OBJ_NEW_QSTR(MP_QSTR_LOW_LATENCY_PM), MP_OBJ_NEW_SMALL_INT(SL_LOW_LATENCY_POLICY) }, { MP_OBJ_NEW_QSTR(MP_QSTR_LOW_POWER_PM), MP_OBJ_NEW_SMALL_INT(SL_LOW_POWER_POLICY) }, { MP_OBJ_NEW_QSTR(MP_QSTR_ALWAYS_ON_PM), MP_OBJ_NEW_SMALL_INT(SL_ALWAYS_ON_POLICY) }, { MP_OBJ_NEW_QSTR(MP_QSTR_LONG_SLEEP_PM), MP_OBJ_NEW_SMALL_INT(SL_LONG_SLEEP_INTERVAL_POLICY) }, }; STATIC MP_DEFINE_CONST_DICT(wlan_locals_dict, wlan_locals_dict_table); /******************************************************************************/ // Micro Python bindings; WLAN socket STATIC int wlan_gethostbyname(mp_obj_t nic, const char *name, mp_uint_t len, uint8_t *out_ip, uint8_t family) { uint32_t ip; int result = sl_NetAppDnsGetHostByName((_i8 *)name, (_u16)len, (_u32*)&ip, (_u8)family); out_ip[0] = ip >> 24; out_ip[1] = ip >> 16; out_ip[2] = ip >> 8; out_ip[3] = ip; return result; } STATIC int wlan_socket_socket(struct _mod_network_socket_obj_t *s, int *_errno) { // open the socket int16_t sd = sl_Socket(s->u_param.domain, s->u_param.type, s->u_param.proto); if (s->sd < 0) { *_errno = s->sd; return -1; } // mark the socket not closed s->closed = false; // save the socket descriptor s->sd = sd; // make it blocking by default int32_t optval = 0; sl_SetSockOpt(sd, SOL_SOCKET, SO_NONBLOCKING, &optval, (SlSocklen_t)sizeof(optval)); return 0; } STATIC void wlan_socket_close(mod_network_socket_obj_t *s) { s->closed = true; sl_Close(s->sd); } STATIC int wlan_socket_bind(mod_network_socket_obj_t *s, byte *ip, mp_uint_t port, int *_errno) { MAKE_SOCKADDR(addr, ip, port) int ret = sl_Bind(s->sd, &addr, sizeof(addr)); if (ret != 0) { *_errno = ret; return -1; } return 0; } STATIC int wlan_socket_listen(mod_network_socket_obj_t *s, mp_int_t backlog, int *_errno) { int ret = sl_Listen(s->sd, backlog); if (ret != 0) { *_errno = ret; return -1; } return 0; } STATIC int wlan_socket_accept(mod_network_socket_obj_t *s, mod_network_socket_obj_t *s2, byte *ip, mp_uint_t *port, int *_errno) { // accept incoming connection int16_t sd; sockaddr addr; socklen_t addr_len = sizeof(addr); if ((sd = sl_Accept(s->sd, &addr, &addr_len)) < 0) { *_errno = sd; return -1; } // Mark the socket not closed and save the new descriptor s2->closed = false; s2->sd = sd; // return ip and port UNPACK_SOCKADDR(addr, ip, *port); return 0; } STATIC int wlan_socket_connect(mod_network_socket_obj_t *s, byte *ip, mp_uint_t port, int *_errno) { MAKE_SOCKADDR(addr, ip, port) int ret = sl_Connect(s->sd, &addr, sizeof(addr)); if (ret != 0) { *_errno = ret; return -1; } return 0; } STATIC int wlan_socket_send(mod_network_socket_obj_t *s, const byte *buf, mp_uint_t len, int *_errno) { if (s->closed) { sl_Close (s->sd); *_errno = EBADF; return -1; } mp_int_t bytes = 0; if (len > 0) { bytes = sl_Send(s->sd, (const void *)buf, len, 0); } if (bytes <= 0) { *_errno = bytes; return -1; } return bytes; } STATIC int wlan_socket_recv(mod_network_socket_obj_t *s, byte *buf, mp_uint_t len, int *_errno) { // check if the socket is open if (s->closed) { // socket is closed, but the CC3200 may have some data remaining in its buffer, so check fd_set rfds; FD_ZERO(&rfds); FD_SET(s->sd, &rfds); timeval tv; tv.tv_sec = 0; tv.tv_usec = 2; int nfds = sl_Select(s->sd + 1, &rfds, NULL, NULL, &tv); if (nfds == -1 || !FD_ISSET(s->sd, &rfds)) { // no data waiting, so close socket and return 0 data sl_Close(s->sd); return 0; } } // cap length at WLAN_MAX_RX_SIZE len = MIN(len, WLAN_MAX_RX_SIZE); // do the recv int ret = sl_Recv(s->sd, buf, len, 0); if (ret < 0) { *_errno = ret; return -1; } return ret; } STATIC int wlan_socket_sendto( mod_network_socket_obj_t *s, const byte *buf, mp_uint_t len, byte *ip, mp_uint_t port, int *_errno) { MAKE_SOCKADDR(addr, ip, port) int ret = sl_SendTo(s->sd, (byte*)buf, len, 0, (sockaddr*)&addr, sizeof(addr)); if (ret < 0) { *_errno = ret; return -1; } return ret; } STATIC int wlan_socket_recvfrom(mod_network_socket_obj_t *s, byte *buf, mp_uint_t len, byte *ip, mp_uint_t *port, int *_errno) { sockaddr addr; socklen_t addr_len = sizeof(addr); mp_int_t ret = sl_RecvFrom(s->sd, buf, len, 0, &addr, &addr_len); if (ret < 0) { *_errno = ret; return -1; } UNPACK_SOCKADDR(addr, ip, *port); return ret; } STATIC int wlan_socket_setsockopt(mod_network_socket_obj_t *socket, mp_uint_t level, mp_uint_t opt, const void *optval, mp_uint_t optlen, int *_errno) { int ret = sl_SetSockOpt(socket->sd, level, opt, optval, optlen); if (ret < 0) { *_errno = ret; return -1; } return 0; } STATIC int wlan_socket_settimeout(mod_network_socket_obj_t *s, mp_uint_t timeout_ms, int *_errno) { int ret; if (timeout_ms == 0 || timeout_ms == -1) { int optval; if (timeout_ms == 0) { // set non-blocking mode optval = 1; } else { // set blocking mode optval = 0; } ret = sl_SetSockOpt(s->sd, SOL_SOCKET, SO_NONBLOCKING, &optval, sizeof(optval)); } else { // set timeout ret = sl_SetSockOpt(s->sd, SOL_SOCKET, SO_RCVTIMEO, &timeout_ms, sizeof(timeout_ms)); } if (ret != 0) { *_errno = ret; return -1; } return 0; } STATIC int wlan_socket_ioctl (mod_network_socket_obj_t *s, mp_uint_t request, mp_uint_t arg, int *_errno) { mp_int_t ret; if (request == MP_IOCTL_POLL) { mp_uint_t flags = arg; ret = 0; int32_t sd = s->sd; // init fds fd_set rfds, wfds, xfds; FD_ZERO(&rfds); FD_ZERO(&wfds); FD_ZERO(&xfds); // set fds if needed if (flags & MP_IOCTL_POLL_RD) { FD_SET(sd, &rfds); // A socked that just closed is available for reading. A call to // recv() returns 0 which is consistent with BSD. if (s->closed) { ret |= MP_IOCTL_POLL_RD; } } if (flags & MP_IOCTL_POLL_WR) { FD_SET(sd, &wfds); } if (flags & MP_IOCTL_POLL_HUP) { FD_SET(sd, &xfds); } // call simplelink select with minimum timeout SlTimeval_t tv; tv.tv_sec = 0; tv.tv_usec = 1; int32_t nfds = sl_Select(sd + 1, &rfds, &wfds, &xfds, &tv); // check for error if (nfds == -1) { *_errno = nfds; return -1; } // check return of select if (FD_ISSET(sd, &rfds)) { ret |= MP_IOCTL_POLL_RD; } if (FD_ISSET(sd, &wfds)) { ret |= MP_IOCTL_POLL_WR; } if (FD_ISSET(sd, &xfds)) { ret |= MP_IOCTL_POLL_HUP; } } else { *_errno = EINVAL; ret = -1; } return ret; } const mod_network_nic_type_t mod_network_nic_type_wlan = { .base = { { &mp_type_type }, .name = MP_QSTR_WLAN, .print = wlan_print, .make_new = wlan_make_new, .locals_dict = (mp_obj_t)&wlan_locals_dict, }, .gethostbyname = wlan_gethostbyname, .socket = wlan_socket_socket, .close = wlan_socket_close, .bind = wlan_socket_bind, .listen = wlan_socket_listen, .accept = wlan_socket_accept, .connect = wlan_socket_connect, .send = wlan_socket_send, .recv = wlan_socket_recv, .sendto = wlan_socket_sendto, .recvfrom = wlan_socket_recvfrom, .setsockopt = wlan_socket_setsockopt, .settimeout = wlan_socket_settimeout, .ioctl = wlan_socket_ioctl, };