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nuttx/drivers/wireless/cc3000/socket_imp.c

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/****************************************************************************
* drivers/wireless/socket_imp.c - CC3000 Host Driver Implementation.
* Copyright (C) 2011 Texas Instruments Incorporated - http://www.ti.com/
*
* Port to nuttx:
* David Sidrane <david_s5@nscdg.com>
*
* 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 <stdio.h>
#include <string.h>
#include <unistd.h>
#include <debug.h>
#include <stdlib.h>
#include <nuttx/wireless/cc3000/hci.h>
#include "cc3000_socket.h"
#include <nuttx/wireless/cc3000/evnt_handler.h>
#include <nuttx/wireless/cc3000/netapp.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
/* Enable this flag if and only if you must comply with BSD socket read() and
* write() functions
*/
#ifdef _API_USE_BSD_READ_WRITE
# define read(sd, buf, len, flags) recv(sd, buf, len, flags)
# define write(sd, buf, len, flags) send(sd, buf, len, flags)
#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 the Event to get processed that returns
* the buffers
*/
if (0 == tSLInformation.usNumberOfFreeBuffers)
{
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);
(*((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) ? *(unsigned long*)readsds : 0));
args = UINT32_TO_STREAM(args, ((writesds) ? *(unsigned long*)writesds : 0));
args = UINT32_TO_STREAM(args, ((exceptsds) ? *(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, ((uint8_t *)buf), len);
/* In case we are using SendTo, copy the to parameters */
if (opcode == HCI_CMND_SENDTO)
{
ARRAY_TO_STREAM(pDataPtr, ((uint8_t *)to), tolen);
}
/* Initiate a HCI command */
hci_data_send(opcode, ptr, uArgSize, len,(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;
}
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