/**************************************************************************** * drivers/wireless/cc3000/socket_imp.c - CC3000 Host Driver Implementation. * * Copyright (C) 2011 Texas Instruments Incorporated - http://www.ti.com/ * * Port to nuttx: * David Sidrane * * Redistribution and use in source and binary forms, with or without * modification, are permitted provided that the following conditions * are met: * * Redistributions of source code must retain the above copyright * notice, this list of conditions and the following disclaimer. * * 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. * * Neither the name of Texas Instruments Incorporated 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 AND CONTRIBUTORS * "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 * OWNER OR CONTRIBUTORS 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. * ****************************************************************************/ /**************************************************************************** * Included Files ****************************************************************************/ #include #include #include #include #include #include #include #include #include #include #include "cc3000_socket.h" /**************************************************************************** * Pre-processor Definitions ****************************************************************************/ /* Enable this flag if and only if you must comply with BSD socket close() * function */ #ifdef _API_USE_BSD_CLOSE # define close(sd) closesocket(sd) #endif #define SOCKET_OPEN_PARAMS_LEN (12) #define SOCKET_CLOSE_PARAMS_LEN (4) #define SOCKET_ACCEPT_PARAMS_LEN (4) #define SOCKET_BIND_PARAMS_LEN (20) #define SOCKET_LISTEN_PARAMS_LEN (8) #define SOCKET_GET_HOST_BY_NAME_PARAMS_LEN (9) #define SOCKET_CONNECT_PARAMS_LEN (20) #define SOCKET_SELECT_PARAMS_LEN (44) #define SOCKET_SET_SOCK_OPT_PARAMS_LEN (20) #define SOCKET_GET_SOCK_OPT_PARAMS_LEN (12) #define SOCKET_RECV_FROM_PARAMS_LEN (12) #define SOCKET_SENDTO_PARAMS_LEN (24) #define SOCKET_MDNS_ADVERTISE_PARAMS_LEN (12) /* The legnth of arguments for the SEND command: sd + buff_offset + len + flags, * while size of each parameter is 32 bit - so the total length is 16 bytes; */ #define HCI_CMND_SEND_ARG_LENGTH (16) #define SELECT_TIMEOUT_MIN_MICRO_SECONDS 5000 #define HEADERS_SIZE_DATA (SPI_HEADER_SIZE + 5) #define SIMPLE_LINK_HCI_CMND_TRANSPORT_HEADER_SIZE \ (SPI_HEADER_SIZE + SIMPLE_LINK_HCI_CMND_HEADER_SIZE) #define MDNS_DEVICE_SERVICE_MAX_LENGTH (32) /**************************************************************************** * Public Functions ****************************************************************************/ /**************************************************************************** * Name: HostFlowControlConsumeBuff * * Input Parameters: * sd socket descriptor * * Returned Value: * 0 in case there are buffers available, * -1 in case of bad socket * -2 if there are no free buffers present (only when * SEND_NON_BLOCKING is enabled) * * Decription: * if SEND_NON_BLOCKING not define - block until have free buffer * becomes available, else return immediately with correct status * regarding the buffers available. * ****************************************************************************/ int HostFlowControlConsumeBuff(int sd) { #ifndef SEND_NON_BLOCKING /* Wait in busy loop */ do { /* In case last transmission failed then we will return the last failure * reason here. * Note that the buffer will not be allocated in this case */ if (tSLInformation.slTransmitDataError != 0) { set_errno(tSLInformation.slTransmitDataError); tSLInformation.slTransmitDataError = 0; return tSLInformation.slTransmitDataError; } if (SOCKET_STATUS_ACTIVE != get_socket_active_status(sd)) { return -1; } /* We must yield here for the Event to get processed that returns * the buffers */ if (0 == tSLInformation.usNumberOfFreeBuffers) { nxsig_usleep(100000); } } while (0 == tSLInformation.usNumberOfFreeBuffers); tSLInformation.usNumberOfFreeBuffers--; return 0; #else /* In case last transmission failed then we will return the last failure * reason here. * Note that the buffer will not be allocated in this case */ if (tSLInformation.slTransmitDataError != 0) { set_errno(tSLInformation.slTransmitDataError); tSLInformation.slTransmitDataError = 0; return tSLInformation.slTransmitDataError; } if (SOCKET_STATUS_ACTIVE != get_socket_active_status(sd)) { return -1; } /* If there are no available buffers, return -2. It is recommended to use * select or receive to see if there is any buffer occupied with received data * If so, call receive() to release the buffer. */ if (0 == tSLInformation.usNumberOfFreeBuffers) { return -2; } else { tSLInformation.usNumberOfFreeBuffers--; return 0; } #endif } /**************************************************************************** * Name: socket * * Decription: * create an endpoint for communication. The socket function creates a * socket that is bound to a specific transport service provider. This * function is called by the application layer to obtain a socket handle. * * Input Parameters: * domain selects the protocol family which will be used for * communication. On this version only AF_INET is supported * type specifies the communication semantics. On this version * only SOCK_STREAM, SOCK_DGRAM, SOCK_RAW are supported * protocol specifies a particular protocol to be used with the * socket IPPROTO_TCP, IPPROTO_UDP or IPPROTO_RAW are * supported. * * Returned Value: * On success, socket handle that is used for consequent socket * operations. On error, -1 is returned. * ****************************************************************************/ int cc3000_socket_impl(long domain, long type, long protocol) { long ret; uint8_t *ptr, *args; ret = EFAIL; ptr = tSLInformation.pucTxCommandBuffer; args = (ptr + HEADERS_SIZE_CMD); /* Fill in HCI packet structure */ args = UINT32_TO_STREAM(args, domain); args = UINT32_TO_STREAM(args, type); args = UINT32_TO_STREAM(args, protocol); /* Initiate a HCI command */ hci_command_send(HCI_CMND_SOCKET, ptr, SOCKET_OPEN_PARAMS_LEN); /* Since we are in blocking state - wait for event complete */ SimpleLinkWaitEvent(HCI_CMND_SOCKET, &ret); /* Process the event */ set_errno(ret); set_socket_active_status(ret, SOCKET_STATUS_ACTIVE); return ret; } /**************************************************************************** * Name: closesocket * * Decription: * The socket function closes a created socket. * * Input Parameters: * sd socket handle. * * Returned Value: * On success, zero is returned. On error, -1 is returned. * ****************************************************************************/ long cc3000_closesocket_impl(long sd) { long ret; uint8_t *ptr, *args; ret = EFAIL; ptr = tSLInformation.pucTxCommandBuffer; args = (ptr + HEADERS_SIZE_CMD); /* Fill in HCI packet structure */ args = UINT32_TO_STREAM(args, sd); /* Initiate a HCI command */ hci_command_send(HCI_CMND_CLOSE_SOCKET, ptr, SOCKET_CLOSE_PARAMS_LEN); /* Since we are in blocking state - wait for event complete */ SimpleLinkWaitEvent(HCI_CMND_CLOSE_SOCKET, &ret); set_errno(ret); /* Since 'close' call may result in either OK (and then it closed) or error * mark this socket as invalid */ set_socket_active_status(sd, SOCKET_STATUS_INACTIVE); return ret; } /**************************************************************************** * Name: accept * * Decription: * accept a connection on a socket: * This function is used with connection-based socket types * (SOCK_STREAM). It extracts the first connection request on the * queue of pending connections, creates a new connected socket, and * returns a new file descriptor referring to that socket. * The newly created socket is not in the listening state. * The original socket sd is unaffected by this call. * The argument sd is a socket that has been created with socket(), * bound to a local address with bind(), and is listening for * connections after a listen(). The argument addr is a pointer * to a sockaddr structure. This structure is filled in with the * address of the peer socket, as known to the communications layer. * The exact format of the address returned addr is determined by the * socket's address family. The addrlen argument is a value-result * argument: it should initially contain the size of the structure * pointed to by addr, on return it will contain the actual * length (in bytes) of the address returned. * * Input Parameters: * sd socket descriptor (handle) * addr the argument addr is a pointer to a sockaddr structure * This structure is filled in with the address of the * peer socket, as known to the communications layer. * determined. The exact format of the address returned * addr is by the socket's address sockaddr. * On this version only AF_INET is supported. * This argument returns in network order. * addrlen The addrlen argument is a value-result argument: * it should initially contain the size of the structure * pointed to by addr. * * Returned Value: * For socket in blocking mode: * On success, socket handle. on failure negative * For socket in non-blocking mode: * - On connection establishment, socket handle * - On connection pending, SOC_IN_PROGRESS (-2) * - On failure, SOC_ERROR (-1) * ****************************************************************************/ long cc3000_accept_impl(long sd, struct sockaddr *addr, socklen_t *addrlen) { long ret; uint8_t *ptr, *args; tBsdReturnParams tAcceptReturnArguments; ptr = tSLInformation.pucTxCommandBuffer; args = (ptr + HEADERS_SIZE_CMD); /* Fill in temporary command buffer */ args = UINT32_TO_STREAM(args, sd); /* Initiate a HCI command */ hci_command_send(HCI_CMND_ACCEPT, ptr, SOCKET_ACCEPT_PARAMS_LEN); /* Since we are in blocking state - wait for event complete */ SimpleLinkWaitEvent(HCI_CMND_ACCEPT, &tAcceptReturnArguments); /* Need specify return parameters!!! */ memcpy(addr, &tAcceptReturnArguments.tSocketAddress, CC3000_ASIC_ADDR_LEN); *addrlen = CC3000_ASIC_ADDR_LEN; set_errno(tAcceptReturnArguments.iStatus); ret = tAcceptReturnArguments.iStatus; /* if succeeded, iStatus = new socket descriptor. otherwise - error number */ if (M_IS_VALID_SD(ret)) { set_socket_active_status(ret, SOCKET_STATUS_ACTIVE); } else { set_socket_active_status(sd, SOCKET_STATUS_INACTIVE); } return ret; } /**************************************************************************** * Name: bind * * Decription: * assign a name to a socket * This function gives the socket the local address addr. * addr is addrlen bytes long. Traditionally, this is called when a * socket is created with socket, it exists in a name space (address * family) but has no name assigned. * It is necessary to assign a local address before a SOCK_STREAM * socket may receive connections. * * Input Parameters: * sd socket descriptor (handle) * addr specifies the destination address. On this version * only AF_INET is supported. * addrlen contains the size of the structure pointed to by addr. * * Returned Value: * On success, zero is returned. On error, -1 is returned. * ****************************************************************************/ long cc3000_bind_impl(long sd, const struct sockaddr *addr, socklen_t addrlen) { long ret; uint8_t *ptr, *args; ret = EFAIL; ptr = tSLInformation.pucTxCommandBuffer; args = (ptr + HEADERS_SIZE_CMD); addrlen = CC3000_ASIC_ADDR_LEN; /* Fill in temporary command buffer */ args = UINT32_TO_STREAM(args, sd); args = UINT32_TO_STREAM(args, 0x00000008); args = UINT32_TO_STREAM(args, addrlen); ARRAY_TO_STREAM(args, ((uint8_t *)addr), addrlen); /* Initiate a HCI command */ hci_command_send(HCI_CMND_BIND, ptr, SOCKET_BIND_PARAMS_LEN); /* Since we are in blocking state - wait for event complete */ SimpleLinkWaitEvent(HCI_CMND_BIND, &ret); set_errno(ret); return ret; } /**************************************************************************** * Name: listen * * Decription: * listen for connections on a socket * The willingness to accept incoming connections and a queue * limit for incoming connections are specified with listen(), * and then the connections are accepted with accept. * The listen() call applies only to sockets of type SOCK_STREAM * The backlog parameter defines the maximum length the queue of * pending connections may grow to. * * NOTE: On this version, backlog is not supported * * Input Parameters: * sd socket descriptor (handle) * backlog specifies the listen queue depth. On this version * backlog is not supported. * * Returned Value: * On success, zero is returned. On error, -1 is returned. * ****************************************************************************/ long cc3000_listen_impl(long sd, long backlog) { long ret; uint8_t *ptr, *args; ret = EFAIL; ptr = tSLInformation.pucTxCommandBuffer; args = (ptr + HEADERS_SIZE_CMD); /* Fill in temporary command buffer */ args = UINT32_TO_STREAM(args, sd); args = UINT32_TO_STREAM(args, backlog); /* Initiate a HCI command */ hci_command_send(HCI_CMND_LISTEN, ptr, SOCKET_LISTEN_PARAMS_LEN); /* Since we are in blocking state - wait for event complete */ SimpleLinkWaitEvent(HCI_CMND_LISTEN, &ret); set_errno(ret); return ret; } /**************************************************************************** * Name: gethostbyname * * Decription: * Get host IP by name. Obtain the IP Address of machine on network, * by its name. * * NOTE: On this version, only blocking mode is supported. Also note that * the function requires DNS server to be configured prior to its * usage. * * Input Parameters: * hostname host name * usNameLen name length * out_ip_addr This parameter is filled in with host IP address. * In case that host name is not resolved, * out_ip_addr is zero. * * Returned Value: * On success, positive is returned. On error, negative is returned * ****************************************************************************/ #ifndef CC3000_TINY_DRIVER int cc3000_gethostbyname_impl(char *hostname, uint16_t usNameLen, unsigned long *out_ip_addr) { tBsdGethostbynameParams ret; uint8_t *ptr, *args; set_errno(EFAIL); if (usNameLen > CC3000_HOSTNAME_MAX_LENGTH) { return get_errno(); } ptr = tSLInformation.pucTxCommandBuffer; args = (ptr + SIMPLE_LINK_HCI_CMND_TRANSPORT_HEADER_SIZE); /* Fill in HCI packet structure */ args = UINT32_TO_STREAM(args, 8); args = UINT32_TO_STREAM(args, usNameLen); ARRAY_TO_STREAM(args, hostname, usNameLen); /* Initiate a HCI command */ hci_command_send(HCI_CMND_GETHOSTNAME, ptr, SOCKET_GET_HOST_BY_NAME_PARAMS_LEN + usNameLen - 1); /* Since we are in blocking state - wait for event complete */ SimpleLinkWaitEvent(HCI_EVNT_BSD_GETHOSTBYNAME, &ret); set_errno(ret.retVal); (*((FAR long *)out_ip_addr)) = ret.outputAddress; return ret.retVal; } #endif /**************************************************************************** * Name: connect * * Decription: * initiate a connection on a socket * Function connects the socket referred to by the socket descriptor * sd, to the address specified by addr. The addrlen argument * specifies the size of addr. The format of the address in addr is * determined by the address space of the socket. If it is of type * SOCK_DGRAM, this call specifies the peer with which the socket is * to be associated; this address is that to which datagrams are to be * sent, and the only address from which datagrams are to be received. * If the socket is of type SOCK_STREAM, this call attempts to make a * connection to another socket. The other socket is specified by * address, which is an address in the communications space of the * socket. Note that the function implements only blocking behavior * thus the caller will be waiting either for the connection * establishment or for the connection establishment failure. * * Input Parameters: * sd socket descriptor (handle) * addr specifies the destination addr. On this version * only AF_INET is supported. * addrlen contains the size of the structure pointed to by addr * * Returned Value: * On success, zero is returned. On error, -1 is returned * ****************************************************************************/ long cc3000_connect_impl(long sd, const struct sockaddr *addr, socklen_t addrlen) { long int ret; uint8_t *ptr, *args; ret = EFAIL; ptr = tSLInformation.pucTxCommandBuffer; args = (ptr + SIMPLE_LINK_HCI_CMND_TRANSPORT_HEADER_SIZE); addrlen = 8; /* Fill in temporary command buffer */ args = UINT32_TO_STREAM(args, sd); args = UINT32_TO_STREAM(args, 0x00000008); args = UINT32_TO_STREAM(args, addrlen); ARRAY_TO_STREAM(args, ((uint8_t *)addr), addrlen); /* Initiate a HCI command */ hci_command_send(HCI_CMND_CONNECT, ptr, SOCKET_CONNECT_PARAMS_LEN); /* Since we are in blocking state - wait for event complete */ SimpleLinkWaitEvent(HCI_CMND_CONNECT, &ret); set_errno(ret); return (long)ret; } /**************************************************************************** * Name: select * * Decription: * Monitor socket activity * Select allow a program to monitor multiple file descriptors, * waiting until one or more of the file descriptors become * "ready" for some class of I/O operation * * NOTE: If the timeout value set to less than 5ms it will automatically set * to 5ms to prevent overload of the system * * Input Parameters: * nfds the highest-numbered file descriptor in any of the * three sets, plus 1. * writesds socket descriptors list for write monitoring * readsds socket descriptors list for read monitoring * exceptsds socket descriptors list for exception monitoring * timeout is an upper bound on the amount of time elapsed * before select() returns. Null means infinity * timeout. The minimum timeout is 5 milliseconds, * less than 5 milliseconds will be set * automatically to 5 milliseconds. * * Returned Value: * On success, select() returns the number of file descriptors * contained in the three returned descriptor sets (that is, the * total number of bits that are set in readfds, writefds, * exceptfds) which may be zero if the timeout expires before * anything interesting happens. * On error, -1 is returned. * *readsds - return the sockets on which Read request will * return without delay with valid data. * *writesds - return the sockets on which Write request * will return without delay. * *exceptsds - return the sockets which closed recently. * ****************************************************************************/ int cc3000_select_impl(long nfds, TICC3000fd_set *readsds, TICC3000fd_set *writesds, TICC3000fd_set *exceptsds, struct timeval *timeout) { uint8_t *ptr, *args; tBsdSelectRecvParams tParams; unsigned long is_blocking; if (timeout == NULL) { is_blocking = 1; /* blocking , infinity timeout */ } else { is_blocking = 0; /* no blocking, timeout */ } /* Fill in HCI packet structure */ ptr = tSLInformation.pucTxCommandBuffer; args = (ptr + HEADERS_SIZE_CMD); /* Fill in temporary command buffer */ args = UINT32_TO_STREAM(args, nfds); args = UINT32_TO_STREAM(args, 0x00000014); args = UINT32_TO_STREAM(args, 0x00000014); args = UINT32_TO_STREAM(args, 0x00000014); args = UINT32_TO_STREAM(args, 0x00000014); args = UINT32_TO_STREAM(args, is_blocking); args = UINT32_TO_STREAM(args, ((readsds) ? *(FAR unsigned long *)readsds : 0)); args = UINT32_TO_STREAM(args, ((writesds) ? *(FAR unsigned long *)writesds : 0)); args = UINT32_TO_STREAM(args, ((exceptsds) ? *(FAR unsigned long *)exceptsds : 0)); if (timeout) { if (0 == timeout->tv_sec && timeout->tv_usec < SELECT_TIMEOUT_MIN_MICRO_SECONDS) { timeout->tv_usec = SELECT_TIMEOUT_MIN_MICRO_SECONDS; } args = UINT32_TO_STREAM(args, timeout->tv_sec); args = UINT32_TO_STREAM(args, timeout->tv_usec); } /* Initiate a HCI command */ hci_command_send(HCI_CMND_BSD_SELECT, ptr, SOCKET_SELECT_PARAMS_LEN); /* Since we are in blocking state - wait for event complete */ SimpleLinkWaitEvent(HCI_EVNT_SELECT, &tParams); /* Update actually read FD */ if (tParams.iStatus >= 0) { if (readsds) { memcpy(readsds, &tParams.uiRdfd, sizeof(tParams.uiRdfd)); } if (writesds) { memcpy(writesds, &tParams.uiWrfd, sizeof(tParams.uiWrfd)); } if (exceptsds) { memcpy(exceptsds, &tParams.uiExfd, sizeof(tParams.uiExfd)); } return tParams.iStatus; } else { set_errno(tParams.iStatus); return -1; } } /**************************************************************************** * Name: setsockopt * * Decription: * set socket options * This function manipulate the options associated with a socket. * Options may exist at multiple protocol levels; they are always * present at the uppermost socket level. * When manipulating socket options the level at which the option * resides and the name of the option must be specified. * To manipulate options at the socket level, level is specified as * SOL_SOCKET. To manipulate options at any other level the protocol * number of the appropriate protocol controlling the option is * supplied. For example, to indicate that an option is to be * interpreted by the TCP protocol, level should be set to the * protocol number of TCP; * The parameters optval and optlen are used to access optval - * use for setsockopt(). For getsockopt() they identify a buffer * in which the value for the requested option(s) are to * be returned. For getsockopt(), optlen is a value-result * parameter, initially containing the size of the buffer * pointed to by option_value, and modified on return to * indicate the actual size of the value returned. If no option * value is to be supplied or returned, option_value may be NULL. * * NOTE: On this version the following two socket options are enabled: * The only protocol level supported in this version * is SOL_SOCKET (level). * 1. SOCKOPT_RECV_TIMEOUT (optname) * SOCKOPT_RECV_TIMEOUT configures recv and recvfrom timeout * in milliseconds. * In that case optval should be pointer to unsigned long. * 2. SOCKOPT_NONBLOCK (optname). sets the socket non-blocking mode on * or off. * In that case optval should be SOCK_ON or SOCK_OFF (optval). * * Input Parameters: * sd socket handle * level defines the protocol level for this option * optname defines the option name to Interrogate * optval specifies a value for the option * optlen specifies the length of the option value * * Returned Value: * On success, zero is returned. On error, -1 is returned * ****************************************************************************/ #ifndef CC3000_TINY_DRIVER int cc3000_setsockopt_impl(long sd, long level, long optname, const void *optval, socklen_t optlen) { int ret; uint8_t *ptr, *args; ptr = tSLInformation.pucTxCommandBuffer; args = (ptr + HEADERS_SIZE_CMD); /* Fill in temporary command buffer */ args = UINT32_TO_STREAM(args, sd); args = UINT32_TO_STREAM(args, level); args = UINT32_TO_STREAM(args, optname); args = UINT32_TO_STREAM(args, 0x00000008); args = UINT32_TO_STREAM(args, optlen); ARRAY_TO_STREAM(args, ((uint8_t *)optval), optlen); /* Initiate a HCI command */ hci_command_send(HCI_CMND_SETSOCKOPT, ptr, SOCKET_SET_SOCK_OPT_PARAMS_LEN + optlen); /* Since we are in blocking state - wait for event complete */ SimpleLinkWaitEvent(HCI_CMND_SETSOCKOPT, &ret); if (ret >= 0) { return 0; } else { set_errno(ret); return ret; } } #endif /**************************************************************************** * Name: getsockopt * * Decription: * set socket options * This function manipulate the options associated with a socket. * Options may exist at multiple protocol levels; they are always * present at the uppermost socket level. * When manipulating socket options the level at which the option * resides and the name of the option must be specified. * To manipulate options at the socket level, level is specified as * SOL_SOCKET. To manipulate options at any other level the protocol * number of the appropriate protocol controlling the option is * supplied. For example, to indicate that an option is to be * interpreted by the TCP protocol, level should be set to the * protocol number of TCP; * The parameters optval and optlen are used to access optval - * use for setsockopt(). For getsockopt() they identify a buffer * in which the value for the requested option(s) are to * be returned. For getsockopt(), optlen is a value-result * parameter, initially containing the size of the buffer * pointed to by option_value, and modified on return to * indicate the actual size of the value returned. If no option * value is to be supplied or returned, option_value may be NULL. * * NOTE: On this version the following two socket options are enabled: * The only protocol level supported in this version * is SOL_SOCKET (level). * 1. SOCKOPT_RECV_TIMEOUT (optname) * SOCKOPT_RECV_TIMEOUT configures recv and recvfrom timeout * in milliseconds. * In that case optval should be pointer to unsigned long. * 2. SOCKOPT_NONBLOCK (optname). sets the socket non-blocking mode on * or off. * In that case optval should be SOCK_ON or SOCK_OFF (optval). * * Input Parameters: * sd socket handle * level defines the protocol level for this option * optname defines the option name to Interrogate * optval specifies a value for the option * optlen specifies the length of the option value * * Returned Value: * On success, zero is returned. On error, -1 is returned * ****************************************************************************/ int cc3000_getsockopt_impl(long sd, long level, long optname, void *optval, socklen_t *optlen) { uint8_t *ptr, *args; tBsdGetSockOptReturnParams tRetParams; ptr = tSLInformation.pucTxCommandBuffer; args = (ptr + HEADERS_SIZE_CMD); /* Fill in temporary command buffer */ args = UINT32_TO_STREAM(args, sd); args = UINT32_TO_STREAM(args, level); args = UINT32_TO_STREAM(args, optname); /* Initiate a HCI command */ hci_command_send(HCI_CMND_GETSOCKOPT, ptr, SOCKET_GET_SOCK_OPT_PARAMS_LEN); /* Since we are in blocking state - wait for event complete */ SimpleLinkWaitEvent(HCI_CMND_GETSOCKOPT, &tRetParams); if (((int8_t)tRetParams.iStatus) >= 0) { *optlen = 4; memcpy(optval, tRetParams.ucOptValue, 4); return 0; } else { set_errno(tRetParams.iStatus); return tRetParams.iStatus; } } /**************************************************************************** * Name: simple_link_recv * * Input Parameters: * sd socket handle * buf read buffer * len buffer length * flags indicates blocking or non-blocking operation * from pointer to an address structure indicating source address * fromlen source address structure size * * Returned Value: * Return the number of bytes received, or -1 if an error * occurred * * Decription: * Read data from socket * Return the length of the message on successful completion. * If a message is too long to fit in the supplied buffer, * excess bytes may be discarded depending on the type of * socket the message is received from * ****************************************************************************/ int simple_link_recv(long sd, void *buf, long len, long flags, struct sockaddr *from, socklen_t *fromlen, long opcode) { uint8_t *ptr, *args; tBsdReadReturnParams tSocketReadEvent; ptr = tSLInformation.pucTxCommandBuffer; args = (ptr + HEADERS_SIZE_CMD); /* Fill in HCI packet structure */ args = UINT32_TO_STREAM(args, sd); args = UINT32_TO_STREAM(args, len); args = UINT32_TO_STREAM(args, flags); /* Generate the read command, and wait for the */ hci_command_send(opcode, ptr, SOCKET_RECV_FROM_PARAMS_LEN); /* Since we are in blocking state - wait for event complete */ SimpleLinkWaitEvent(opcode, &tSocketReadEvent); /* In case the number of bytes is more then zero - read data */ if (tSocketReadEvent.iNumberOfBytes > 0) { /* Wait for the data in a synchronous way. Here we assume that the bug is * big enough to store also parameters of receive from too.... */ SimpleLinkWaitData((uint8_t *)buf, (uint8_t *)from, (uint8_t *)fromlen); } set_errno(tSocketReadEvent.iNumberOfBytes); return tSocketReadEvent.iNumberOfBytes; } /**************************************************************************** * Name: recv * * Decription: * function receives a message from a connection-mode socket * * NOTE: On this version, only blocking mode is supported. * * Input Parameters: * sd socket handle * buf Points to the buffer where the message should be stored * len Specifies the length in bytes of the buffer pointed to * by the buffer argument. * flags Specifies the type of message reception. * On this version, this parameter is not supported. * * Returned Value: * Return the number of bytes received, or -1 if an error * occurred * ****************************************************************************/ int cc3000_recv_impl(long sd, void *buf, long len, long flags) { return(simple_link_recv(sd, buf, len, flags, NULL, NULL, HCI_CMND_RECV)); } /**************************************************************************** * Name: recvfrom * * Decription: * read data from socket * function receives a message from a connection-mode or * connectionless-mode socket. Note that raw sockets are not * supported. * * NOTE: On this version, only blocking mode is supported. * * Input Parameters: * sd socket handle * buf Points to the buffer where the message should be stored * len Specifies the length in bytes of the buffer pointed to * by the buffer argument. * flags Specifies the type of message reception. * On this version, this parameter is not supported. * from pointer to an address structure indicating the source * address: sockaddr. On this version only AF_INET is * supported. * fromlen source address tructure size * * Returned Value: * Return the number of bytes received, or -1 if an error * occurred * ****************************************************************************/ int cc3000_recvfrom_impl(long sd, void *buf, long len, long flags, struct sockaddr *from, socklen_t *fromlen) { return(simple_link_recv(sd, buf, len, flags, from, fromlen, HCI_CMND_RECVFROM)); } /**************************************************************************** * Name: simple_link_send * * Input Parameters: * sd socket handle * buf write buffer * len buffer length * flags On this version, this parameter is not supported * to pointer to an address structure indicating destination * address * tolen destination address structure size * * Returned Value: * Return the number of bytes transmitted, or -1 if an error * occurred, or -2 in case there are no free buffers available * (only when SEND_NON_BLOCKING is enabled) * * Decription: * This function is used to transmit a message to another * socket * ****************************************************************************/ int simple_link_send(long sd, const void *buf, long len, long flags, const struct sockaddr *to, long tolen, long opcode) { tBsdReadReturnParams tSocketSendEvent; uint8_t uArgSize = 0, addrlen; uint8_t *ptr, *pDataPtr = NULL, *args; unsigned long addr_offset = 0; int res; /* Check the bsd_arguments */ if (0 != (res = HostFlowControlConsumeBuff(sd))) { return res; } /* Update the number of sent packets */ tSLInformation.NumberOfSentPackets++; /* Allocate a buffer and construct a packet and send it over spi */ ptr = tSLInformation.pucTxCommandBuffer; args = (ptr + HEADERS_SIZE_DATA); /* Update the offset of data and parameters according to the command */ switch (opcode) { case HCI_CMND_SENDTO: { addr_offset = len + sizeof(len) + sizeof(len); addrlen = 8; uArgSize = SOCKET_SENDTO_PARAMS_LEN; pDataPtr = ptr + HEADERS_SIZE_DATA + SOCKET_SENDTO_PARAMS_LEN; break; } case HCI_CMND_SEND: { tolen = 0; to = NULL; uArgSize = HCI_CMND_SEND_ARG_LENGTH; pDataPtr = ptr + HEADERS_SIZE_DATA + HCI_CMND_SEND_ARG_LENGTH; break; } default: { break; } } /* Fill in temporary command buffer */ args = UINT32_TO_STREAM(args, sd); args = UINT32_TO_STREAM(args, uArgSize - sizeof(sd)); args = UINT32_TO_STREAM(args, len); args = UINT32_TO_STREAM(args, flags); if (opcode == HCI_CMND_SENDTO) { args = UINT32_TO_STREAM(args, addr_offset); args = UINT32_TO_STREAM(args, addrlen); } /* Copy the data received from user into the TX Buffer */ ARRAY_TO_STREAM(pDataPtr, ((FAR uint8_t *)buf), len); /* In case we are using SendTo, copy the to parameters */ if (opcode == HCI_CMND_SENDTO) { ARRAY_TO_STREAM(pDataPtr, ((FAR uint8_t *)to), tolen); } /* Initiate a HCI command */ hci_data_send(opcode, ptr, uArgSize, len, (FAR uint8_t *)to, tolen); if (opcode == HCI_CMND_SENDTO) { SimpleLinkWaitEvent(HCI_EVNT_SENDTO, &tSocketSendEvent); } else { SimpleLinkWaitEvent(HCI_EVNT_SEND, &tSocketSendEvent); } return len; } /**************************************************************************** * Name: send * * Decription: * Write data to TCP socket * This function is used to transmit a message to another * socket. * * NOTE: On this version, only blocking mode is supported. * * Input Parameters: * sd socket handle * buf Points to a buffer containing the message to be sent * len message size in bytes * flags On this version, this parameter is not supported * * Returned Value: * Return the number of bytes transmitted, or -1 if an * error occurred * ****************************************************************************/ int cc3000_send_impl(long sd, const void *buf, long len, long flags) { return(simple_link_send(sd, buf, len, flags, NULL, 0, HCI_CMND_SEND)); } /**************************************************************************** * Name: sendto * * Decription: * Write data to TCP socket * This function is used to transmit a message to another * socket. * * NOTE: On this version, only blocking mode is supported. * * Input Parameters: * sd socket handle * buf Points to a buffer containing the message to be sent * len message size in bytes * flags On this version, this parameter is not supported * to pointer to an address structure indicating the destination * address: sockaddr. On this version only AF_INET is * supported. * tolen destination address structure size * * Returned Value: * Return the number of bytes transmitted, or -1 if an * error occurred * ****************************************************************************/ int cc3000_sendto_impl(long sd, const void *buf, long len, long flags, const struct sockaddr *to, socklen_t tolen) { return(simple_link_send(sd, buf, len, flags, to, tolen, HCI_CMND_SENDTO)); } /**************************************************************************** * Name: mdnsAdvertiser * * Decription: * Set CC3000 in mDNS advertiser mode in order to advertise itself. * * Input Parameters: * mdnsEnabled flag to enable/disable the mDNS feature * deviceServiceName Service name as part of the published * canonical domain name * deviceServiceNameLength Length of the service name * * Returned Value: * On success, zero is returned, return SOC_ERROR if socket was not * opened successfully, or if an error occurred. * ****************************************************************************/ int cc3000_mdnsadvertiser_impl(uint16_t mdnsEnabled, char * deviceServiceName, uint16_t deviceServiceNameLength) { uint8_t *pTxBuffer; uint8_t *pArgs; int ret; if (deviceServiceNameLength > MDNS_DEVICE_SERVICE_MAX_LENGTH) { return EFAIL; } pTxBuffer = tSLInformation.pucTxCommandBuffer; pArgs = (pTxBuffer + SIMPLE_LINK_HCI_CMND_TRANSPORT_HEADER_SIZE); /* Fill in HCI packet structure */ pArgs = UINT32_TO_STREAM(pArgs, mdnsEnabled); pArgs = UINT32_TO_STREAM(pArgs, 8); pArgs = UINT32_TO_STREAM(pArgs, deviceServiceNameLength); ARRAY_TO_STREAM(pArgs, deviceServiceName, deviceServiceNameLength); /* Initiate a HCI command */ hci_command_send(HCI_CMND_MDNS_ADVERTISE, pTxBuffer, SOCKET_MDNS_ADVERTISE_PARAMS_LEN + deviceServiceNameLength); /* Since we are in blocking state - wait for event complete */ SimpleLinkWaitEvent(HCI_EVNT_MDNS_ADVERTISE, &ret); return ret; }