usrp2: removed cruft and bitrot apps from fw

1 files changed, 0 insertions, 261 deletions

diff --git a/firmware/zpu/apps/bitrot/tx_drop.c b/firmware/zpu/apps/bitrot/tx_drop.c
deleted file mode 100644
index 3a336e938..000000000
--- a/firmware/zpu/apps/bitrot/tx_drop.c
+++ /dev/null
@@ -1,261 +0,0 @@
-/*
- * Copyright 2007,2008 Free Software Foundation, Inc.
- *
- * This program is free software: you can redistribute it and/or modify
- * it under the terms of the GNU General Public License as published by
- * the Free Software Foundation, either version 3 of the License, or
- * (at your option) any later version.
- *
- * This program is distributed in the hope that it will be useful,
- * but WITHOUT ANY WARRANTY; without even the implied warranty of
- * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
- * GNU General Public License for more details.
- *
- * You should have received a copy of the GNU General Public License
- * along with this program.  If not, see <http://www.gnu.org/licenses/>.
- */
-
-#ifdef HAVE_CONFIG_H
-#include "config.h"
-#endif
-
-#include "u2_init.h"
-#include "memory_map.h"
-#include "spi.h"
-#include "hal_io.h"
-#include "buffer_pool.h"
-#include "pic.h"
-#include <stdbool.h>
-#include "ethernet.h"
-#include "nonstdio.h"
-#include "usrp2_eth_packet.h"
-#include "dbsm.h"
-#include "app_common.h"
-#include "print_rmon_regs.h"
-#include <stddef.h>
-#include <stdlib.h>
-#include <string.h>
-
-
-/*
- * Like tx_only.c, but we discard data packets instead of sending them to the
- * DSP TX pipeline.
- */
-
-int total_rx_pkts = 0;
-int total_rx_bytes = 0;
-
-
-static int timer_delta = MASTER_CLK_RATE/1000;	// tick at 1kHz
-
-/*
- * This program can respond to queries from the host
- * and stream rx samples.
- *
- * Buffer 1 is used by the cpu to send frames to the host.
- * Buffers 2 and 3 are used to double-buffer the DSP Rx to eth flow
- * Buffers 4 and 5 are used to double-buffer the eth to DSP Tx  eth flow
- */
-//#define CPU_RX_BUF	0	// eth -> cpu
-//#define CPU_TX_BUF 	1	// cpu -> eth
-
-#define	DSP_RX_BUF_0	2	// dsp rx -> eth (double buffer)
-#define	DSP_RX_BUF_1	3	// dsp rx -> eth
-#define	DSP_TX_BUF_0	4	// eth -> dsp tx (double buffer)
-#define	DSP_TX_BUF_1	5	// eth -> dsp tx
-
-
-/*
- * ================================================================
- *      configure DSP TX double buffering state machine
- * ================================================================
- */
-
-// 4 lines of ethernet hdr + 2 lines (word0 + timestamp)
-// DSP Tx reads word0 (flags) + timestamp followed by samples
-
-#define DSP_TX_FIRST_LINE		  4
-#define DSP_TX_SAMPLES_PER_FRAME	250	// not used except w/ debugging
-#define	DSP_TX_EXTRA_LINES		  2	// reads word0 + timestamp
-
-// Receive from ethernet
-buf_cmd_args_t dsp_tx_recv_args = {
-  PORT_ETH,
-  0,
-  BP_LAST_LINE
-};
-
-// send to DSP Tx
-buf_cmd_args_t dsp_tx_send_args = {
-  PORT_DSP,
-  DSP_TX_FIRST_LINE,	// starts just past ethernet header
-  0			// filled in from last_line register
-};
-
-dbsm_t dsp_tx_sm;	// the state machine
-
-
-// ----------------------------------------------------------------
-
-
-// The mac address of the host we're sending to.
-eth_mac_addr_t host_mac_addr;
-
-
-void
-timer_irq_handler(unsigned irq)
-{
-  hal_set_timeout(timer_delta);	// schedule next timeout
-}
-
-// Tx DSP underrun
-void
-underrun_irq_handler(unsigned irq)
-{
-  putchar('U');
-
-  dbsm_stop(&dsp_tx_sm);
-  dsp_tx_regs->clear_state = 1;
-  dbsm_start(&dsp_tx_sm);  // restart sm so we're listening to ethernet again
-
-  // putstr("\nirq: underrun\n");
-}
-
-
-void
-start_rx_cmd(const eth_mac_addr_t *host, op_start_rx_t *p)
-{
-}
-
-void
-stop_rx_cmd(void)
-{
-}
-
-static void
-setup_tx()
-{
-  dsp_tx_regs->clear_state = 1;
-  bp_clear_buf(DSP_TX_BUF_0);
-  bp_clear_buf(DSP_TX_BUF_1);
-
-  int tx_scale = 256;
-  int interp = 32;
-
-  op_config_tx_t def_config;
-  memset(&def_config, 0, sizeof(def_config));
-  def_config.phase_inc  = 408021893;			// 9.5 MHz [2**32 * fc/fsample]
-  def_config.scale_iq = (tx_scale << 16) | tx_scale;
-  def_config.interp = interp;
-
-  // setup Tx DSP regs
-  config_tx_cmd(&def_config);
-}
-
-
-inline static void
-buffer_irq_handler(unsigned irq)
-{
-  uint32_t  status = buffer_pool_status->status;
-
-  if (status & BPS_ERROR_ALL){
-    // FIXME rare path, handle error conditions
-    putstr("Errors! status = ");
-    puthex32_nl(status);
-
-    printf("total_rx_pkts  = %d\n", total_rx_pkts);
-    printf("total_rx_bytes = %d\n", total_rx_bytes);
-
-    print_rmon_regs();
-
-    if (status & (BPS_ERROR(DSP_TX_BUF_0) | BPS_ERROR(DSP_TX_BUF_1))){
-      dbsm_stop(&dsp_tx_sm);		
-      dsp_tx_regs->clear_state = 1; // try to restart
-      dbsm_start(&dsp_tx_sm);
-      return;
-    }
-  }
-
-  dbsm_process_status(&dsp_tx_sm, status);
-
-  if (status & BPS_DONE(CPU_TX_BUF)){
-    bp_clear_buf(CPU_TX_BUF);
-  }
-}
-
-
-/*
- * Called when an ethernet packet is received.
- *
- * Claim that we handled all the packets,
- * dropping those destined for the TX DSP chain
- * on the ground.
- */
-bool
-nop_eth_pkt_inspector(dbsm_t *sm, int bufno)
-{
-  hal_toggle_leds(0x1);
-
-  u2_eth_packet_t *pkt = (u2_eth_packet_t *) buffer_ram(bufno);
-  size_t byte_len = (buffer_pool_status->last_line[bufno] - 1) * 4;
-
-  total_rx_pkts++;
-  total_rx_bytes += byte_len;
-
-  // inspect rcvd frame and figure out what do do.
-
-  if (pkt->ehdr.ethertype != U2_ETHERTYPE)
-    return true;	// ignore, probably bogus PAUSE frame from MAC
-
-  int chan = u2p_chan(&pkt->fixed);
-
-  switch (chan){
-  case CONTROL_CHAN:
-    handle_control_chan_frame(pkt, byte_len);
-    return true;	// we handled the packet
-    break;
-
-  case 0:
-  default:
-    return true;	// We handled the data by dropping it :)
-    break;
-  }
-}
-
-
-int
-main(void)
-{
-  u2_init();
-
-  // setup tx gpio bits for GPIOM_FPGA_1 -- fpga debug output
-  hal_gpio_set_tx_mode(15, 0, GPIOM_FPGA_1);
-  hal_gpio_set_rx_mode(15, 0, GPIOM_FPGA_1);
-
-  putstr("\ntx_drop\n");
-  
-  // Control LEDs
-  hal_set_leds(0x0, 0x3);
-
-  pic_register_handler(IRQ_UNDERRUN, underrun_irq_handler);
-
-  ethernet_register_link_changed_callback(link_changed_callback);
-  ethernet_init();
-
-  // initialize double buffering state machine for ethernet -> DSP Tx
-
-  dbsm_init(&dsp_tx_sm, DSP_TX_BUF_0,
-	    &dsp_tx_recv_args, &dsp_tx_send_args,
-	    nop_eth_pkt_inspector);
-
-  // program tx registers
-  setup_tx();
-
-  // kick off the state machine
-  dbsm_start(&dsp_tx_sm);
-
-  while(1){
-    buffer_irq_handler(0);
-  }
-}
-