2 * Copyright 2007,2008 Free Software Foundation, Inc.
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.
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.
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/>.
19 * Loopback SERDES to SERDES
26 #include "memory_map.h"
29 #include "buffer_pool.h"
33 #include "memset_wa.h"
42 // ----------------------------------------------------------------
44 #define SERDES_RX_BUF_0 0
45 #define SERDES_RX_BUF_1 1
48 * ================================================================
49 * configure SD RX double buffering state machine
50 * ================================================================
53 // receive from SERDES
54 buf_cmd_args_t sd_recv_args = {
61 buf_cmd_args_t sd_send_args = {
63 0, // starts with packet in line 0
64 0, // filled in from list_line register
67 dbsm_t sd_sm; // the state machine
72 // ----------------------------------------------------------------
76 check_packet(int *buf, int nlines)
80 for (i = 0; i < nlines; i++){
81 int expected = ((2*i + 0) << 16) | (2*i+1);
82 if (buf[i] != expected){
84 printf("buf[%d] = 0x%x expected = 0x%x\n", i, buf[i], expected);
91 zero_buffer(int bufno)
93 memset_wa(buffer_ram(bufno), 0, BP_NLINES * 4);
99 sd_rx_inspector(dbsm_t *sm, int buf_this)
101 hal_toggle_leds(0x2);
104 int last_line = buffer_pool_status->last_line[buf_this];
105 bool ok = check_packet(buffer_ram(buf_this), last_line);
114 if(good+bad == 10000) {
115 printf("Good %d\tBad %d\n",good,bad);
126 buffer_irq_handler(void)
128 uint32_t status = buffer_pool_status->status;
129 dbsm_process_status(&sd_sm, status);
138 putstr("\nsd_bounce\n");
140 // Get our clock from the mimo interface
141 clocks_mimo_config(MC_WE_LOCK_TO_MIMO);
143 dbsm_init(&sd_sm, SERDES_RX_BUF_0,
144 &sd_recv_args, &sd_send_args,
147 // kick off the state machine
151 buffer_irq_handler();