diff options
Diffstat (limited to 'firmware/zpu/apps/cruft/gen_eth_packets.c')
| -rw-r--r-- | firmware/zpu/apps/cruft/gen_eth_packets.c | 187 |
1 files changed, 0 insertions, 187 deletions
diff --git a/firmware/zpu/apps/cruft/gen_eth_packets.c b/firmware/zpu/apps/cruft/gen_eth_packets.c deleted file mode 100644 index 4d521f6bf..000000000 --- a/firmware/zpu/apps/cruft/gen_eth_packets.c +++ /dev/null @@ -1,187 +0,0 @@ -/* - * Copyright 2007 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 "memcpy_wa.h" -#include "print_rmon_regs.h" -#include <stddef.h> -#include <stdlib.h> -#include <string.h> - - -// ---------------------------------------------------------------- - -static eth_mac_addr_t dst_mac_addr = - {{ 0xff, 0xff, 0xff, 0xff, 0xff, 0xff }}; - -// ---------------------------------------------------------------- - -// #define PACKET_SIZE 1500 // bytes -// #define ETH_DATA_RATE 1000000 // 1MB/s -// #define ETH_PACKET_RATE (ETH_DATA_RATE/PACKET_SIZE) // 13,3333 pkts/s - -// static int timer_delta = MASTER_CLK_RATE/ETH_PACKET_RATE; // ticks between interrupts - -static int timer_delta = (int)(MASTER_CLK_RATE * 1e-3); // tick at 1 kHz -static int sim_timer_delta = (int)(MASTER_CLK_RATE * 100e-6); // tick at 10 kHz - -static volatile bool send_packet_now = false; // timer handler sets this -static volatile bool link_is_up = false; // eth handler sets this - -int packet_number = 0; - - -#define CPU_TX_BUF 0 // cpu xmits ethernet frames from here -#define CPU_RX_BUF 1 // receive ethernet frames here - -// ---------------------------------------------------------------- - -/* - * Called when eth phy state changes (w/ interrupts disabled) - */ -void -link_changed_callback(int speed) -{ - link_is_up = speed == 0 ? false : true; - hal_set_leds(link_is_up ? 0x2 : 0x0, 0x2); - printf("\neth link changed: speed = %d\n", speed); -} - -void -timer_irq_handler(unsigned irq) -{ - hal_set_timeout(timer_delta); // schedule next timeout - send_packet_now = 1; -} - - -static void -init_packet(int *buf, const u2_eth_packet_t *pkt, int bufnum) -{ - int i = 0; - int mark = ((bufnum & 0xff) << 24) | 0x005A0000; - - for (i = 0; i < BP_NLINES; i++){ - buf[i] = mark | i; - mark ^= 0x00FF0000; - } - - // copy header into buffer - memcpy_wa(buf, pkt, sizeof(*pkt)); -} - -static void -init_packets(void) -{ - u2_eth_packet_t pkt __attribute__((aligned (4))); - - memset(&pkt, 0, sizeof(pkt)); - - pkt.ehdr.dst = dst_mac_addr; - pkt.ehdr.src = *ethernet_mac_addr(); - pkt.ehdr.ethertype = U2_ETHERTYPE; - pkt.fixed.word0 = 0x01234567; - pkt.fixed.timestamp = 0xffffffff; - - // init just the one we're using - init_packet((void *)buffer_ram(CPU_TX_BUF), &pkt, CPU_TX_BUF); -} - -int -main(void) -{ - int npackets_sent = 0; - - u2_init(); - - // setup tx gpio bits for GPIOM_FPGA_1 -- fpga debug output - //hal_gpio_set_sels(GPIO_TX_BANK, "1111111111111111"); - //hal_gpio_set_sels(GPIO_RX_BANK, "1111111111111111"); - - putstr("\ngen_eth_packets\n"); - - hal_set_leds(0x0, 0x3); - - init_packets(); - - pic_register_handler(IRQ_TIMER, timer_irq_handler); - - if (hwconfig_simulation_p()) - timer_delta = sim_timer_delta; - - hal_set_timeout(timer_delta); - - ethernet_register_link_changed_callback(link_changed_callback); - ethernet_init(); - - /* - if (hwconfig_simulation_p()){ - eth_mac->speed = 4; // hardcode mac speed to 1000 - link_is_up = true; - } - */ - - // fire off a receive from the ethernet - bp_receive_to_buf(CPU_RX_BUF, PORT_ETH, 1, 0, BP_LAST_LINE); - - while(1){ - uint32_t status = buffer_pool_status->status; - - if (status & (BPS_DONE(CPU_RX_BUF) | BPS_ERROR(CPU_RX_BUF))){ - bp_clear_buf(CPU_RX_BUF); - // ignore incoming ethernet packets; they were looped back in sim - bp_receive_to_buf(CPU_RX_BUF, PORT_ETH, 1, 0, BP_LAST_LINE); - } - - if (status & (BPS_DONE(CPU_TX_BUF) | BPS_ERROR(CPU_TX_BUF))){ - if (status & BPS_ERROR(CPU_TX_BUF)){ - putchar('E'); - } - bp_clear_buf(CPU_TX_BUF); - npackets_sent++; - if ((npackets_sent & 0xF) == 0){ // print after every 16 packets - //print_rmon_regs(); - putchar('.'); - } - } - - if (link_is_up && send_packet_now && (status & BPS_IDLE(CPU_TX_BUF))){ - send_packet_now = false; - - // kick off the next packet - // FIXME set packet number in packet - - bp_send_from_buf(CPU_TX_BUF, PORT_ETH, 1, 0, 255); // 1KB total - hal_toggle_leds(0x1); - } - } - - hal_finish(); - return 1; -} |