diff options
Diffstat (limited to 'usrp2/firmware/apps/sd_gentest.c')
| -rw-r--r-- | usrp2/firmware/apps/sd_gentest.c | 269 |
1 files changed, 269 insertions, 0 deletions
diff --git a/usrp2/firmware/apps/sd_gentest.c b/usrp2/firmware/apps/sd_gentest.c new file mode 100644 index 000000000..4824f03f5 --- /dev/null +++ b/usrp2/firmware/apps/sd_gentest.c @@ -0,0 +1,269 @@ +/* + * 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 "bool.h" +#include "nonstdio.h" +#include "memset_wa.h" +#include <stddef.h> +#include <stdlib.h> +#include <string.h> +#include <clocks.h> +#include <mdelay.h> + +// ---------------------------------------------------------------- + +int packet_number = 0; +volatile bool send_packet_now = 0; + +#define SERDES_TX_BUF 0 +#define SERDES_RX_BUF 1 + + +#define NLINES_PER_PKT 380 + + +// ---------------------------------------------------------------- + +//static int timer_delta = (int)(MASTER_CLK_RATE * 100e-6); +static int timer_delta = 1000000; // .01 second + +void +timer_irq_handler(unsigned irq) +{ + hal_set_timeout(timer_delta); // schedule next timeout + send_packet_now = true; +} + + +static void +init_packet(int *buf) +{ + int i = 0; + for (i = 0; i < BP_NLINES; i++){ + buf[i] = ((2*i + 0) << 16) | (2*i+1); + } +} + +static bool +check_packet(int *buf, int nlines) +{ + bool ok = true; + int i = 0; + for (i = 0; i < nlines; i++){ + int expected = ((2*i + 0) << 16) | (2*i+1); + if (buf[i] != expected){ + ok = false; + printf("buf[%d] = 0x%x expected = 0x%x\n", i, buf[i], expected); + } + } + return ok; +} + +static void +zero_buffer(int bufno) +{ + memset_wa(buffer_ram(bufno), 0, BP_NLINES * 4); +} + +static void +init_packets(void) +{ + // init just the one we're using + init_packet(buffer_ram(SERDES_TX_BUF)); +} + +int +main(void) +{ + u2_init(); + + // We're free running and provide clock to the MIMO interface + clocks_mimo_config(MC_WE_DONT_LOCK | MC_PROVIDE_CLK_TO_MIMO); + + + // setup tx gpio bits for GPIOM_FPGA_1 -- fpga debug output + // output_regs->debug_mux_ctrl = 1; + // hal_gpio_set_sels(GPIO_TX_BANK, "1111111111111111"); + // hal_gpio_set_sels(GPIO_RX_BANK, "1111111111111111"); + + putstr("\nsd_gentest\n"); + + // Set up serdes (already enabled) + //output_regs->serdes_ctrl = (SERDES_ENABLE | SERDES_RXEN | SERDES_LOOPEN); + //output_regs->serdes_ctrl = (SERDES_ENABLE | SERDES_RXEN); + + init_packets(); + + // pic_register_handler(IRQ_TIMER, timer_irq_handler); + + //if (hwconfig_simulation_p()) + // timer_delta = sim_timer_delta; + + // start a receive from sd + zero_buffer(SERDES_RX_BUF); + bp_receive_to_buf(SERDES_RX_BUF, PORT_SERDES, 1, 0, BP_LAST_LINE); + + // fire off the first packet + bp_send_from_buf(SERDES_TX_BUF, PORT_SERDES, 1, 0, NLINES_PER_PKT); + hal_set_timeout(timer_delta); + int ready_to_send = 0; + + int counter __attribute__((unused)) = 0; + int sent = 1; + int txerr = 0; + int rxerr = 0; + int rcvd = 0; + int rxcrc = 0; + int sent_acc = 0; + int txerr_acc = 0; + int rxerr_acc = 0; + int rcvd_acc = 0; + int rxcrc_acc = 0; + +#define EXPECTING_PKT() ((counter & 0x1) == 0) +#define SEND_PKT() ((counter & 0x1) != 0) + + bool got_packet = false; + + while(1){ + uint32_t status = buffer_pool_status->status; + + if (status & (BPS_DONE(SERDES_RX_BUF))){ + bp_clear_buf(SERDES_RX_BUF); + got_packet = true; + + //hal_toggle_leds(0x2); + + // check packet + int last_line = buffer_pool_status->last_line[SERDES_RX_BUF]-1; + bool ok = check_packet(buffer_ram(SERDES_RX_BUF), last_line); + + if (ok) { + rcvd++; + //putchar('r'); + } + else { + rcvd++; + rxcrc++; + //putchar('P'); + } + // start a receive from sd + zero_buffer(SERDES_RX_BUF); + bp_receive_to_buf(SERDES_RX_BUF, PORT_SERDES, 1, 0, BP_LAST_LINE); + } + + if (status & (BPS_ERROR(SERDES_RX_BUF))){ + bp_clear_buf(SERDES_RX_BUF); + got_packet = true; + rcvd++; + rxerr++; + //putchar('E'); + + // start a receive from sd + zero_buffer(SERDES_RX_BUF); + bp_receive_to_buf(SERDES_RX_BUF, PORT_SERDES, 1, 0, BP_LAST_LINE); + } + + if (status & (BPS_DONE(SERDES_TX_BUF))){ + bp_clear_buf(SERDES_TX_BUF); + //putchar('t'); + bp_send_from_buf(SERDES_TX_BUF, PORT_SERDES, 1, 0, NLINES_PER_PKT); + //mdelay(1); + int i; + for (i = 0; i < 50; i++){ + asm volatile ("or r0, r0, r0\n\ + or r0, r0, r0\n \ + or r0, r0, r0\n \ + or r0, r0, r0\n \ + or r0, r0, r0\n \ + or r0, r0, r0\n \ + or r0, r0, r0\n"); + } + sent ++; + ready_to_send = 1; + //hal_toggle_leds(0x1); + } + + if (status & BPS_ERROR(SERDES_TX_BUF)){ + bp_clear_buf(SERDES_TX_BUF); + sent++; + txerr++; + ready_to_send = 1; + //putchar('X'); + } + + if(sent >=1000) { + printf("Status\tSENT %d\tTXERR %d\t",sent,txerr); + printf("RX %d\tERR %d\tCRC %d\tMISSED %d\n",rcvd, rxerr, rxcrc, sent-rcvd); + sent_acc += sent; sent = 0; + txerr_acc += txerr; txerr = 0; + rcvd_acc += rcvd; rcvd = 0; + rxerr_acc += rxerr; rxerr = 0; + rxcrc_acc += rxcrc; rxcrc = 0; + } + + if(sent_acc >=10000) { + printf("\nOverall\tSENT %d\tTXERR %d\t",sent_acc,txerr_acc); + printf("RX %d\tERR %d\tCRC %d\tMISSED %d\n\n",rcvd_acc, rxerr_acc, rxcrc_acc, sent_acc-rcvd_acc); + sent_acc = 0; + txerr_acc = 0; + rcvd_acc = 0; + rxerr_acc = 0; + rxcrc_acc = 0; + } +#if 0 + int pending = pic_regs->pending; + if (pending & PIC_TIMER_INT){ + hal_set_timeout(timer_delta); + + /* + if (EXPECTING_PKT()){ + if (!got_packet) + putchar('T'); + got_packet = false; + } + + if (SEND_PKT()){ + if (status & BPS_IDLE(SERDES_TX_BUF)) + bp_send_from_buf(SERDES_TX_BUF, PORT_SERDES, 1, 0, NLINES_PER_PKT); + } + counter++; + */ + + putchar('T'); + if(ready_to_send) { + bp_send_from_buf(SERDES_TX_BUF, PORT_SERDES, 1, 0, NLINES_PER_PKT); + counter++; + ready_to_send = 0; + } + + pic_regs->pending = PIC_TIMER_INT; // clear pending interrupt + } +#endif + } + + return 0; +} |