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Diffstat (limited to 'usrp2/firmware/apps/app_passthru_v2.c')
-rw-r--r--usrp2/firmware/apps/app_passthru_v2.c251
1 files changed, 0 insertions, 251 deletions
diff --git a/usrp2/firmware/apps/app_passthru_v2.c b/usrp2/firmware/apps/app_passthru_v2.c
deleted file mode 100644
index 406c56b3b..000000000
--- a/usrp2/firmware/apps/app_passthru_v2.c
+++ /dev/null
@@ -1,251 +0,0 @@
-/* -*- c++ -*- */
-/*
- * 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 "app_passthru_v2.h"
-#include "buffer_pool.h"
-#include "memcpy_wa.h"
-#include "ethernet.h"
-#include "nonstdio.h"
-#include "print_rmon_regs.h"
-#include "db.h"
-#include "clocks.h"
-#include <string.h>
-
-volatile bool link_is_up = false; // eth handler sets this
-
-
-// If this is non-zero, this dbsm could be writing to the ethernet
-dbsm_t *ac_could_be_sending_to_eth;
-
-//static unsigned char exp_seqno = 0;
-
-void
-set_reply_hdr(u2_eth_packet_t *reply_pkt, u2_eth_packet_t const *cmd_pkt)
-{
- reply_pkt->ehdr.dst = cmd_pkt->ehdr.src;
- reply_pkt->ehdr.src = *ethernet_mac_addr();
- reply_pkt->ehdr.ethertype = U2_ETHERTYPE;
- reply_pkt->thdr.flags = 0;
- reply_pkt->thdr.fifo_status = 0; // written by protocol engine
- reply_pkt->thdr.seqno = 0; // written by protocol engine
- reply_pkt->thdr.ack = 0; // written by protocol engine
- u2p_set_word0(&reply_pkt->fixed, 0, CONTROL_CHAN);
- reply_pkt->fixed.timestamp = timer_regs->time;
-}
-
-static void
-send_reply(unsigned char *reply, size_t reply_len)
-{
- if (reply_len < 64)
- reply_len = 64;
-
- // wait for buffer to become idle
- hal_set_leds(0x4, 0x4);
- while((buffer_pool_status->status & BPS_IDLE(CPU_TX_BUF)) == 0)
- ;
- hal_set_leds(0x0, 0x4);
-
- // copy reply into CPU_TX_BUF
- memcpy_wa(buffer_ram(CPU_TX_BUF), reply, reply_len);
-
- // wait until nobody else is sending to the ethernet
- if (ac_could_be_sending_to_eth){
- hal_set_leds(0x8, 0x8);
- dbsm_wait_for_opening(ac_could_be_sending_to_eth);
- hal_set_leds(0x0, 0x8);
- }
-
- // fire it off
- bp_send_from_buf(CPU_TX_BUF, PORT_ETH, 1, 0, reply_len/4);
-
- // wait for it to complete (not long, it's a small pkt)
- while((buffer_pool_status->status & (BPS_DONE(CPU_TX_BUF) | BPS_ERROR(CPU_TX_BUF))) == 0)
- ;
-
- bp_clear_buf(CPU_TX_BUF);
-}
-
-
-static size_t
-op_id_cmd(const op_generic_t *p,
- void *reply_payload, size_t reply_payload_space)
-{
- op_id_reply_t *r = (op_id_reply_t *) reply_payload;
- if (reply_payload_space < sizeof(*r)) // no room
- return 0;
-
- // Build reply subpacket
-
- r->opcode = OP_ID_REPLY;
- r->len = sizeof(op_id_reply_t);
- r->rid = p->rid;
- r->addr = *ethernet_mac_addr();
- r->hw_rev = 0x0000; // FIXME
- // r->fpga_md5sum = ; // FIXME
- // r->sw_md5sum = ; // FIXME
-
- // FIXME Add d'board info, including dbid, min/max gain, min/max freq
-
- return r->len;
-}
-
-static size_t
-add_eop(void *reply_payload, size_t reply_payload_space)
-{
- op_generic_t *r = (op_generic_t *) reply_payload;
- if (reply_payload_space < sizeof(*r))
- return 0; // no room
-
- r->opcode = OP_EOP;
- r->len = sizeof(*r);
- r->rid = 0;
- r->ok = 0;
-
- return r->len;
-}
-
-bool
-handle_control_chan_frame(u2_eth_packet_t *pkt, size_t len)
-{
- unsigned char reply[sizeof(u2_eth_packet_t) + 4 * sizeof(u2_subpkt_t)] _AL4;
- unsigned char *reply_payload = &reply[sizeof(u2_eth_packet_t)];
- int reply_payload_space = sizeof(reply) - sizeof(u2_eth_packet_t);
-
- bool handled_it = false;
-
- // initialize reply
- memset(reply, 0, sizeof(reply));
- set_reply_hdr((u2_eth_packet_t *) reply, pkt);
-
- // point to beginning of payload (subpackets)
- unsigned char *payload = ((unsigned char *) pkt) + sizeof(u2_eth_packet_t);
- int payload_len = len - sizeof(u2_eth_packet_t);
-
- size_t subpktlen = 0;
-
- while (payload_len >= sizeof(op_generic_t)){
- const op_generic_t *gp = (const op_generic_t *) payload;
- subpktlen = 0;
-
- switch(gp->opcode){
- case OP_EOP: // end of subpackets
- goto end_of_subpackets;
-
- case OP_ID:
- subpktlen = op_id_cmd(gp, reply_payload, reply_payload_space);
- handled_it = true;
- break;
-
- default:
- if (0){
- printf("\npassing on %d\n", gp->opcode);
- }
- break;
- }
-
- int t = (gp->len + 3) & ~3; // bump to a multiple of 4
- payload += t;
- payload_len -= t;
-
- subpktlen = (subpktlen + 3) & ~3; // bump to a multiple of 4
- reply_payload += subpktlen;
- reply_payload_space -= subpktlen;
- }
-
- end_of_subpackets:
-
- if (handled_it){
- // add the EOP marker
- subpktlen = add_eop(reply_payload, reply_payload_space);
- subpktlen = (subpktlen + 3) & ~3; // bump to a multiple of 4
- reply_payload += subpktlen;
- reply_payload_space -= subpktlen;
-
- send_reply(reply, reply_payload - reply);
- }
-
- return handled_it;
-}
-
-
-/*
- * Called when an ethernet packet is received.
- * Return true if we handled it here, otherwise
- * it'll be passed on to the DSP Tx pipe
- */
-bool
-eth_pkt_inspector(dbsm_t *sm, int bufno)
-{
- u2_eth_packet_t *pkt = (u2_eth_packet_t *) buffer_ram(bufno);
- size_t byte_len = (buffer_pool_status->last_line[bufno] - 3) * 4;
-
- //static size_t last_len = 0;
-
- // hal_toggle_leds(0x1);
-
- // 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:
- return handle_control_chan_frame(pkt, byte_len);
- break;
-
- case 0:
- default:
-#if 0
- if (last_len != 0){
- if (byte_len != last_len){
- printf("Len: %d last: %d\n", byte_len, last_len);
- }
- }
- last_len = byte_len;
-
- if((pkt->thdr.seqno) == exp_seqno){
- exp_seqno++;
- //putchar('.');
- }
- else {
- // putchar('S');
- //printf("S%d %d ",exp_seqno,pkt->thdr.seqno);
- exp_seqno = pkt->thdr.seqno + 1;
- }
-#endif
- return false; // pass it on to Tx DSP
- break;
- }
-}
-
-/*
- * Called when eth phy state changes (w/ interrupts disabled)
- */
-void
-link_changed_callback(int speed)
-{
- link_is_up = speed != 0;
- hal_set_leds(link_is_up ? LED_RJ45 : 0x0, LED_RJ45);
- printf("\neth link changed: speed = %d\n", speed);
-}