nuttx/drivers/wireless/cc3000/cc3000drv.h
Gregory Nutt e42f7b552f This commit is a set of patches 02/11 through 03/11 correcting issues with the CC3000 networking (01/11 was committed separated). Among these 10 patches:
03/11: CC3000 driver was getting stuck at recv() when remote host closed connection and application tried to read data from remotely shutdown socket. This patch adds proper handling for remotely closed socket event.

07/11: Socket state initialization was done in 'register', while it should be initialized in 'open' and deinitialized in 'close'. Old way caused problems when device is closed, power-cycled and then reopened as old socket state was left enabled.

08/11: Select thread was getting stuck after 'close, power-cycle, reopen', since selectsem was not properly setup and cleaned up.

09/11 'maxFD' was not properly reset in select worker and not checked for before calling cc3000_select().

10/11: After wlan_stop()/cc3000_close(), irqsem was left with count '-1'. Therefore on next wlan_start()/cc3000_open(), initial value for irqsem was wrong. Additional repeated wlan_start()/wlan_stop() decreased irqsem value further. Obviously this causes driver not to function correctly and freeze.

Patch moves initialization and destruction of waitsem, irqsem and readysem to cc3000_open/cc3000_close.

All are: Signed-off-by: Jussi Kivilinna <jussi.kivilinna@haltian.com>
2014-11-28 08:52:52 -06:00

90 lines
3.4 KiB
C

/**************************************************************************
* drivers/wireless/cc3000/cc3000drv.h - Driver wrapper functions to
* connect nuttx to the TI CC3000
*
* 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.
*
*****************************************************************************/
#ifndef __DRIVERS_WIRELESS_CC3000_CC3000DRV_H
#define __DRIVERS_WIRELESS_CC3000_CC3000DRV_H
/*****************************************************************************
* Included Files
*****************************************************************************/
#include <stdint.h>
#include <sys/socket.h>
/*****************************************************************************
* Public Types
*****************************************************************************/
typedef void (*gcSpiHandleRx)(void *p);
/*****************************************************************************
* Public Data
*****************************************************************************/
/*****************************************************************************
* Public Function Prototypes
*****************************************************************************/
#ifdef __cplusplus
#define EXTERN extern "C"
extern "C"
{
#else
#define EXTERN extern
#endif
void cc3000_open(gcSpiHandleRx pfRxHandler);
void cc3000_close(void);
long cc3000_write(uint8_t *pUserBuffer, uint16_t usLength);
uint8_t *cc3000_wait(void);
long cc3000_read(uint8_t *pUserBuffer, uint16_t usLength);
void cc3000_resume(void);
int cc3000_wait_data(int sockfd);
int cc3000_accept_socket(int sockfd, struct sockaddr *addr,
socklen_t *addrlen);
int cc3000_add_socket(int sockfd);
int cc3000_remove_socket(int sockfd);
int cc3000_remote_closed_socket(int sockfd);
#undef EXTERN
#ifdef __cplusplus
}
#endif
#endif /* __DRIVERS_WIRELESS_CC3000_CC3000DRV_H */