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[/] [xulalx25soc/] [trunk/] [sw/] [ramscope.cpp] - Rev 99
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//////////////////////////////////////////////////////////////////////////////// // // Filename: ramscope.cpp // // Project: XuLA2 board // // Purpose: To read out, and decompose, the results of the wishbone scope // as applied to the SDRAM interaction. // // // Creator: Dan Gisselquist, Ph.D. // Gisselquist Technology, LLC // //////////////////////////////////////////////////////////////////////////////// // // Copyright (C) 2015, Gisselquist Technology, LLC // // This program is free software (firmware): 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 MERCHANTIBILITY or // FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License // for more details. // // License: GPL, v3, as defined and found on www.gnu.org, // http://www.gnu.org/licenses/gpl.html // // //////////////////////////////////////////////////////////////////////////////// // // #include <stdio.h> #include <stdlib.h> #include <unistd.h> #include <strings.h> #include <ctype.h> #include <string.h> #include <signal.h> #include <assert.h> #include "usbi.h" #include "port.h" #include "llcomms.h" #include "regdefs.h" #define WBSCOPE R_RAMSCOPE #define WBSCOPEDATA R_RAMSCOPED FPGA *m_fpga; void closeup(int v) { m_fpga->kill(); exit(0); } unsigned brev(const unsigned v) { unsigned int r, a; a = v; r = 0; for(int i=0; i<8; i++) { r <<= 1; r |= (a&1); a >>= 1; } return r; } unsigned wrev(const unsigned v) { unsigned r = brev(v&0x0ff); r |= brev((v>>8)&0x0ff)<<8; return r; } int main(int argc, char **argv) { bool skipping = false; unsigned v, lgln, scoplen; DEVBUS::BUSW *buf; FPGAOPEN(m_fpga); signal(SIGSTOP, closeup); signal(SIGHUP, closeup); printf("Attempting to read address %08x\n", WBSCOPE); v = m_fpga->readio(WBSCOPE); if (0x60000000 != (v & 0x60000000)) { printf("Scope is not yet ready:\n"); printf("\tRESET:\t\t%s\n", (v&0x80000000)?"Ongoing":"Complete"); printf("\tSTOPPED:\t%s\n", (v&0x40000000)?"Yes":"No"); printf("\tTRIGGERED:\t%s\n", (v&0x20000000)?"Yes":"No"); printf("\tPRIMED:\t\t%s\n", (v&0x10000000)?"Yes":"No"); printf("\tMANUAL:\t\t%s\n", (v&0x08000000)?"Yes":"No"); printf("\tDISABLED:\t%s\n", (v&0x04000000)?"Yes":"No"); printf("\tZERO:\t\t%s\n", (v&0x02000000)?"Yes":"No"); exit(0); } else printf("SCOPD = %08x\n", v); lgln = (v>>20) & 0x1f; scoplen = (1<<lgln); buf = new DEVBUS::BUSW[scoplen]; if (false) { printf("Attempting vector read\n"); m_fpga->readz(WBSCOPEDATA, scoplen, buf); printf("Vector read complete\n"); } else { for(unsigned int i=0; i<scoplen; i++) buf[i] = m_fpga->readio(WBSCOPEDATA); } for(unsigned int i=0; i<scoplen; i++) { int cmd; if ((i>0)&&(buf[i] == buf[i-1])&& (i<scoplen-1)&&(buf[i] == buf[i+1])) { if (!skipping) printf(" ****\n"); skipping = true; continue; } skipping = false; printf("%6d %08x:", i, buf[i]); printf("S(%x) ", (buf[i]>>27)&0x0f); if (buf[i] & 0x20000000) printf("W "); else printf("R "); printf("WB(%s%s%s%s%s", (buf[i]&0x80000000)?"CYC":" ", (buf[i]&0x40000000)?"STB":" ", (buf[i]&0x20000000)?"WE":" ", (buf[i]&0x10000000)?"ACK":" ", (buf[i]&0x08000000)?"STL":" "); // if ((buf[i]&0xc8000000)==0xc0000000) printf("*"); else printf(" "); printf(")-SD[%d%d%d%d,%d]", (buf[i]&0x04000000)?1:0, (buf[i]&0x02000000)?1:0, (buf[i]&0x01000000)?1:0, (buf[i]&0x00800000)?1:0, (buf[i]&0x00600000)>>21); cmd = (buf[i] >> 23)&0x0f; if (buf[i]&0x00100000) printf("<- "); else printf("-> "); printf("%s", (buf[i]&0x00080000)?"P":" "); // Pending printf("@%3x,", (buf[i]>>8)&0x07ff); /* printf(",%s%s%s%s%s", (buf[i]&0x080)?"R":"-", (buf[i]&0x040)?"P":".", (buf[i]&0x020)?"P":".", (buf[i]&0x010)?"P":".", (buf[i]&0x008)?"P":"."); printf("/%x%x%x", (buf[i]>>2)&0x01, (buf[i]>>1)&0x01, (buf[i]&0x01)); */ printf("/%02x ", buf[i] & 0x0ff); if (cmd & 0x8) printf("(inactive)"); switch(cmd) { case 0x01: printf("Refresh"); break; case 0x02: printf("Precharge"); break; case 0x03: printf("Activate"); break; case 0x04: printf("Write"); break; case 0x05: printf("Read"); break; case 0x07: printf("NoOp"); break; default: break; } printf("\n"); } if (m_fpga->poll()) { printf("FPGA was interrupted\n"); m_fpga->clear(); m_fpga->writeio(R_ICONTROL, SCOPEN); } delete m_fpga; }
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