po_hi_driver_rasta_serial.c 6.48 KB
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/*
 * This is a part of PolyORB-HI-C distribution, a minimal
 * middleware written for generated code from AADL models.
 * You should use it with the Ocarina toolsuite.
 *
 * Copyright (C) 2010, European Space Agency
 */

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#include <deployment.h>
/* Generated code header */
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#ifdef __PO_HI_NEED_DRIVER_SERIAL_RASTA
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#include <activity.h>
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#include <marshallers.h>

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#include <po_hi_debug.h>
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#include <po_hi_transport.h>
#include <po_hi_gqueue.h>
#include <po_hi_messages.h>
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#include <po_hi_returns.h>
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#include <po_hi_utils.h>
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#include <drivers/po_hi_rtems_utils.h>
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#include <drivers/po_hi_driver_rasta_serial.h>
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#include <drivers/po_hi_driver_rasta_common.h>
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#include <drivers/po_hi_driver_serial_common.h>

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#include <sys/ioctl.h>
#include <sys/stat.h>
#include <sys/types.h>
#include <fcntl.h>
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#include <termios.h>
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/* POSIX-style files */

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#include <pci.h>
#include <rasta.h>
#include <apbuart_rasta.h>
/* Rasta includes from GAISLER drivers */

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#include <drivers/configuration/serial.h>
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int po_hi_c_driver_rasta_serial_fd;

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__po_hi_msg_t        __po_hi_c_driver_rasta_serial_msg;
__po_hi_request_t    __po_hi_c_driver_rasta_serial_request;
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void __po_hi_c_driver_serial_rasta_poller (void)
{
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   int n;
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   int ts;
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   int tr;
   uint8_t* ptr;
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   __PO_HI_DEBUG_INFO ("[RASTA SERIAL] Poller waits for incoming message !\n");
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   ts = __PO_HI_MESSAGES_MAX_SIZE;
   tr = 0;
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   ptr = &(__po_hi_c_driver_rasta_serial_msg.content[0]);
   __po_hi_msg_reallocate (&__po_hi_c_driver_rasta_serial_msg);
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   while (ts > 0)
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   {
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      n = read (po_hi_c_driver_rasta_serial_fd, ptr, ts); 
      ptr += n;

      if (n == -1)
      {
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         __PO_HI_DEBUG_DEBUG ("[RASTA SERIAL] Cannot read on socket !\n");
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         return;
      }
      ts -= n;
   tr += n;
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   }

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#ifdef __PO_HI_DEBUG_INFO
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   __PO_HI_DEBUG_INFO ("[RASTA SERIAL] read() returns total %d, max message size=%d\n", tr, __PO_HI_MESSAGES_MAX_SIZE);
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   __PO_HI_DEBUG_INFO ("[RASTA SERIAL] Message received by poller: 0x");
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   for (ts = 0 ; ts < __PO_HI_MESSAGES_MAX_SIZE ; ts++)
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   {
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      __PO_HI_DEBUG_INFO ("%x", __po_hi_c_driver_rasta_serial_msg.content[ts]);
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   }
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   __PO_HI_DEBUG_INFO ("\n");
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#endif
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   __po_hi_c_driver_rasta_serial_msg.length = tr;
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   __po_hi_unmarshall_request (&__po_hi_c_driver_rasta_serial_request,
                               &__po_hi_c_driver_rasta_serial_msg);
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   __po_hi_main_deliver (&__po_hi_c_driver_rasta_serial_request);
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}

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extern amba_confarea_type* __po_hi_driver_rasta_common_get_bus ();
void __po_hi_rasta_interrrupt_register(void *handler, int irqno, void *arg);

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void __po_hi_c_driver_serial_rasta_init (__po_hi_device_id id)
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{
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   __po_hi_c_serial_conf_t* serialconf;

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   __po_hi_c_driver_rasta_common_init ();
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   serialconf = (__po_hi_c_serial_conf_t*)__po_hi_get_device_configuration (id);
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   if (serialconf == NULL)
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   {
      __PO_HI_DEBUG_INFO ("[RASTA SERIAL] Cannot get the name of the device !\n");
      return;
   }

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    /* provide the spacewire driver with AMBA Plug&Play
     * info so that it can find the GRSPW cores.
     */

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   __PO_HI_DEBUG_INFO ("[RASTA SERIAL] Initialization starts !\n");
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   po_hi_c_driver_rasta_serial_fd = open (serialconf->devname, O_RDWR);
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   if (po_hi_c_driver_rasta_serial_fd < 0)
   {
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      __PO_HI_DEBUG_CRITICAL ("[RASTA SERIAL] Error while opening device %s\n", serialconf->devname);
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   }
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   __PO_HI_DEBUG_DEBUG ("[RASTA SERIAL] Device open, fd=%d\n", po_hi_c_driver_rasta_serial_fd);
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   switch (__po_hi_c_driver_serial_common_get_speed (id))
   {
      case __PO_HI_DRIVER_SERIAL_COMMON_SPEED_19200:
         __PO_HI_DRIVERS_RTEMS_UTILS_IOCTL(po_hi_c_driver_rasta_serial_fd, APBUART_SET_BAUDRATE, 19200);
         break;

      case __PO_HI_DRIVER_SERIAL_COMMON_SPEED_38400:
         __PO_HI_DRIVERS_RTEMS_UTILS_IOCTL(po_hi_c_driver_rasta_serial_fd, APBUART_SET_BAUDRATE, 38400);
         break;

      case __PO_HI_DRIVER_SERIAL_COMMON_SPEED_57600:
         __PO_HI_DRIVERS_RTEMS_UTILS_IOCTL(po_hi_c_driver_rasta_serial_fd, APBUART_SET_BAUDRATE, 57600);
         break;

      case __PO_HI_DRIVER_SERIAL_COMMON_SPEED_115200:
         __PO_HI_DRIVERS_RTEMS_UTILS_IOCTL(po_hi_c_driver_rasta_serial_fd, APBUART_SET_BAUDRATE, 115200);
         break;

      case __PO_HI_DRIVER_SERIAL_COMMON_SPEED_UNKNWON:
         __PO_HI_DEBUG_INFO ("[RASTA SERIAL] Unknwon speed for the serial line\n");
         break;
   }

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  __PO_HI_DRIVERS_RTEMS_UTILS_IOCTL(po_hi_c_driver_rasta_serial_fd, APBUART_SET_BLOCKING, APBUART_BLK_RX | APBUART_BLK_TX | APBUART_BLK_FLUSH);
  __PO_HI_DRIVERS_RTEMS_UTILS_IOCTL(po_hi_c_driver_rasta_serial_fd, APBUART_SET_TXFIFO_LEN, 64);  /* Transmitt buffer 64 chars */
  __PO_HI_DRIVERS_RTEMS_UTILS_IOCTL(po_hi_c_driver_rasta_serial_fd, APBUART_SET_RXFIFO_LEN, 256); /* Receive buffer 256 chars */
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  __PO_HI_DRIVERS_RTEMS_UTILS_IOCTL(po_hi_c_driver_rasta_serial_fd, APBUART_SET_ASCII_MODE, 0); /* Make \n go \n\r or \r\n */
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  __PO_HI_DRIVERS_RTEMS_UTILS_IOCTL(po_hi_c_driver_rasta_serial_fd, APBUART_CLR_STATS, 0);
  __PO_HI_DRIVERS_RTEMS_UTILS_IOCTL(po_hi_c_driver_rasta_serial_fd, APBUART_START, 0);
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  if (tcflush (po_hi_c_driver_rasta_serial_fd, TCIOFLUSH) != 0)
  {
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     __PO_HI_DEBUG_CRITICAL ("[RASTA SERIAL] Error when trying to flush\n");
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  }
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  __PO_HI_DEBUG_INFO ("[RASTA SERIAL] Initialization complete !\n");
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}

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int __po_hi_c_driver_serial_rasta_sender (const __po_hi_task_id task_id, const __po_hi_port_t port)
{
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   int n;
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   int ts;
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   __po_hi_local_port_t local_port;
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   __po_hi_request_t* request;
   __po_hi_msg_t msg;
   __po_hi_port_t destination_port;

   local_port = __po_hi_get_local_port_from_global_port (port);

   request = __po_hi_gqueue_get_most_recent_value (task_id, local_port);

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   if (request->port == -1)
   {
      __PO_HI_DEBUG_DEBUG ("[RASTA SERIAL] Send output task %d, port %d (local_port=%d): no value to send\n", task_id, port, local_port);
      return __PO_HI_SUCCESS;
   }

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   destination_port     = __po_hi_gqueue_get_destination (task_id, local_port, 0);

   __po_hi_msg_reallocate (&msg);

   request->port = destination_port;
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   __PO_HI_DEBUG_INFO ("[RASTA SERIAL] Destination port= %d\n", destination_port);
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   __po_hi_marshall_request (request, &msg);

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   __PO_HI_DEBUG_INFO ("[RASTA SERIAL] Message sent: 0x");
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#ifdef __PO_HI_DEBUG_LEVEL_INFO
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   for (ts = 0 ; ts < __PO_HI_MESSAGES_MAX_SIZE ; ts++)
   {
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      __PO_HI_DEBUG_INFO ("%x", msg.content[ts]);
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   }
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#endif
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   __PO_HI_DEBUG_INFO ("\n");
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   n = write (po_hi_c_driver_rasta_serial_fd, &msg, __PO_HI_MESSAGES_MAX_SIZE);
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   __PO_HI_DEBUG_DEBUG ("[RASTA SERIAL] write() returns %d\n", n);
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   request->port = __PO_HI_GQUEUE_INVALID_PORT;

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   return 1;
}

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#endif