icmp_poll.c 3.2 KB

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  1. /****************************************************************************
  2. * net/icmp/icmp_poll.c
  3. *
  4. * Copyright (C) 2008-2009, 2014 Gregory Nutt. All rights reserved.
  5. * Author: Gregory Nutt <gnutt@nuttx.org>
  6. *
  7. * Redistribution and use in source and binary forms, with or without
  8. * modification, are permitted provided that the following conditions
  9. * are met:
  10. *
  11. * 1. Redistributions of source code must retain the above copyright
  12. * notice, this list of conditions and the following disclaimer.
  13. * 2. Redistributions in binary form must reproduce the above copyright
  14. * notice, this list of conditions and the following disclaimer in
  15. * the documentation and/or other materials provided with the
  16. * distribution.
  17. * 3. Neither the name NuttX nor the names of its contributors may be
  18. * used to endorse or promote products derived from this software
  19. * without specific prior written permission.
  20. *
  21. * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
  22. * "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
  23. * LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS
  24. * FOR A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE
  25. * COPYRIGHT OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT,
  26. * INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING,
  27. * BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS
  28. * OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED
  29. * AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
  30. * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN
  31. * ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE
  32. * POSSIBILITY OF SUCH DAMAGE.
  33. *
  34. ****************************************************************************/
  35. /****************************************************************************
  36. * Included Files
  37. ****************************************************************************/
  38. #include <nuttx/config.h>
  39. #if defined(CONFIG_NET) && defined(CONFIG_NET_ICMP) && defined(CONFIG_NET_ICMP_SOCKET)
  40. #include <debug.h>
  41. #include <nuttx/net/netconfig.h>
  42. #include <nuttx/net/netdev.h>
  43. #include <nuttx/net/icmp.h>
  44. #include "devif/devif.h"
  45. #include "icmp/icmp.h"
  46. /****************************************************************************
  47. * Public Functions
  48. ****************************************************************************/
  49. /****************************************************************************
  50. * Name: icmp_poll
  51. *
  52. * Description:
  53. * Poll a device "connection" structure for availability of ICMP TX data
  54. *
  55. * Input Parameters:
  56. * dev - The device driver structure to use in the send operation
  57. *
  58. * Returned Value:
  59. * None
  60. *
  61. * Assumptions:
  62. * The network is locked.
  63. *
  64. ****************************************************************************/
  65. void icmp_poll(FAR struct net_driver_s *dev)
  66. {
  67. /* Setup for the application callback */
  68. dev->d_appdata = &dev->d_buf[NET_LL_HDRLEN(dev) + IPICMP_HDRLEN];
  69. dev->d_len = 0;
  70. dev->d_sndlen = 0;
  71. /* Perform the application callback */
  72. (void)devif_conn_event(dev, NULL, ICMP_POLL, dev->d_conncb);
  73. }
  74. #endif /* CONFIG_NET && CONFIG_NET_ICMP && CONFIG_NET_ICMP_SOCKET */