git.gag.com Git - debian/gnuradio/blob - usrp2/firmware/lib/buffer_pool.c

   1 /*
   2  * Copyright 2007 Free Software Foundation, Inc.
   3  *
   4  * This program is free software: you can redistribute it and/or modify
   5  * it under the terms of the GNU General Public License as published by
   6  * the Free Software Foundation, either version 3 of the License, or
   7  * (at your option) any later version.
   8  *
   9  * This program is distributed in the hope that it will be useful,
  10  * but WITHOUT ANY WARRANTY; without even the implied warranty of
  11  * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
  12  * GNU General Public License for more details.
  13  *
  14  * You should have received a copy of the GNU General Public License
  15  * along with this program.  If not, see <http://www.gnu.org/licenses/>.
  16  */
  17
  18 #include "memory_map.h"
  19 #include "buffer_pool.h"
  20 #include "hal_io.h"
  21
  22 void
  23 bp_init(void)
  24 {
  25   int i;
  26   bp_disable_port(PORT_SERDES);
  27   bp_disable_port(PORT_DSP);
  28   bp_disable_port(PORT_ETH);
  29   bp_disable_port(PORT_RAM);
  30
  31   for (i = 0; i < NBUFFERS; i++)
  32     bp_clear_buf(i);
  33 }
  34
  35 #ifndef INLINE_BUFFER_POOL
  36
  37 void
  38 bp_clear_buf(int bufnum)
  39 {
  40   buffer_pool_ctrl->ctrl = BPC_BUFFER(bufnum) | BPC_PORT_NIL | BPC_CLR;
  41 }
  42
  43 void
  44 bp_disable_port(int portnum)
  45 {
  46   // disable buffer connections to this port
  47   buffer_pool_ctrl->ctrl = BPC_BUFFER_NIL | BPC_PORT(portnum);
  48 }
  49
  50 void
  51 bp_receive_to_buf(int bufnum, int port, int step, int fl, int ll)
  52 {
  53   buffer_pool_ctrl->ctrl = (BPC_READ
  54                             | BPC_BUFFER(bufnum)
  55                             | BPC_PORT(port)
  56                             | BPC_STEP(step)
  57                             | BPC_FIRST_LINE(fl)
  58                             | BPC_LAST_LINE(ll));
  59 }
  60
  61 void
  62 bp_send_from_buf(int bufnum, int port, int step, int fl, int ll)
  63 {
  64   buffer_pool_ctrl->ctrl = (BPC_WRITE
  65                             | BPC_BUFFER(bufnum)
  66                             | BPC_PORT(port)
  67                             | BPC_STEP(step)
  68                             | BPC_FIRST_LINE(fl)
  69                             | BPC_LAST_LINE(ll));
  70 }
  71
  72 #endif