[ 2187115 ] Bus driver for Goepel Boundary Scan Coach
git-svn-id: https://urjtag.svn.sourceforge.net/svnroot/urjtag/trunk@1417 b68d4a1b-bc3d-0410-92ed-d4ac073336b7master
Arnim Läuger
16 years ago
parent
f740c55e9c
commit
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/*
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* $Id$
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*
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* Busdriver for flashaccess on the Goepel "Boundary Scan Coach" training board
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* www.goepel.com
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* The flash has 1Mbit but only 15 address lines are connected.
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* So only 4Kbit can be accessed.
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* Erfurt, Oct. 10th M. Schneider www.masla.de
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*
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* This program is free software; you can redistribute it and/or
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* modify it under the terms of the GNU General Public License
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* as published by the Free Software Foundation; either version 2
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* of the License, or (at your option) any later version.
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*
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* This program is distributed in the hope that it will be useful,
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* but WITHOUT ANY WARRANTY; without even the implied warranty of
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* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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* GNU General Public License for more details.
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*
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* You should have received a copy of the GNU General Public License
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* along with this program; if not, write to the Free Software
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* Foundation, Inc., 59 Temple Place - Suite 330, Boston, MA
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* 02111-1307, USA.
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*
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*/
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#include "sysdep.h"
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#include <stdlib.h>
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#include <stdint.h>
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#include <string.h>
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#include "part.h"
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#include "bus.h"
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#include "chain.h"
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#include "bssignal.h"
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#include "jtag.h"
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#include "buses.h"
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#include "generic_bus.h"
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typedef struct{
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uint32_t last_adr;
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signal_t *adr[15];
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signal_t *d[8];
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signal_t *deca;
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signal_t *decb;
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signal_t *decc;
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signal_t *we_f;
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signal_t *oe_f;
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} bus_params_t;
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#define LAST_ADR ((bus_params_t *) bus->params)->last_adr
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#define ADR ((bus_params_t *) bus->params)->adr
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#define D ((bus_params_t *) bus->params)->d
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#define DECA ((bus_params_t *) bus->params)->deca
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#define DECB ((bus_params_t *) bus->params)->decb
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#define DECC ((bus_params_t *) bus->params)->decc
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#define WE_F ((bus_params_t *) bus->params)->we_f
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#define OE_F ((bus_params_t *) bus->params)->oe_f
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/**
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* bus->driver->(*new_bus)
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*
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*/
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static bus_t *
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flashbscoach_bus_new( chain_t *chain, const bus_driver_t *driver, char *cmd_params[] )
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{
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bus_t *bus;
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part_t *part;
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int failed = 0;
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bus = calloc( 1, sizeof (bus_t) );
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if (!bus)
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return NULL;
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bus->driver = driver;
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bus->params = calloc( 1, sizeof (bus_params_t) );
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if (!bus->params) {
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free( bus );\
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return NULL;
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}
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CHAIN = chain;
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PART = part = chain->parts->parts[chain->active_part];
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//OE & WE
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failed |= generic_bus_attach_sig( part, &(OE_F), "PB02_00" );
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failed |= generic_bus_attach_sig( part, &(WE_F), "PB02_08" );
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//Decoder
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failed |= generic_bus_attach_sig( part, &(DECA), "PB02_04" );
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failed |= generic_bus_attach_sig( part, &(DECB), "PB00_12" );
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failed |= generic_bus_attach_sig( part, &(DECC), "PB02_07" );
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//Adressbus
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failed |= generic_bus_attach_sig( part, &(ADR[0]), "PB01_09" );
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failed |= generic_bus_attach_sig( part, &(ADR[1]), "PB01_06" );
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failed |= generic_bus_attach_sig( part, &(ADR[2]), "PB01_10" );
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failed |= generic_bus_attach_sig( part, &(ADR[3]), "PB01_11" );
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failed |= generic_bus_attach_sig( part, &(ADR[4]), "PB01_12" );
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failed |= generic_bus_attach_sig( part, &(ADR[5]), "PB01_13" );
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failed |= generic_bus_attach_sig( part, &(ADR[6]), "PB01_15" );
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failed |= generic_bus_attach_sig( part, &(ADR[7]), "PB01_14" );
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failed |= generic_bus_attach_sig( part, &(ADR[8]), "PB01_16" );
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failed |= generic_bus_attach_sig( part, &(ADR[9]), "PB00_01" );
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failed |= generic_bus_attach_sig( part, &(ADR[10]), "PB00_04" );
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failed |= generic_bus_attach_sig( part, &(ADR[11]), "PB00_05" );
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failed |= generic_bus_attach_sig( part, &(ADR[12]), "PB00_00" );
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failed |= generic_bus_attach_sig( part, &(ADR[13]), "PB00_07" );
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failed |= generic_bus_attach_sig( part, &(ADR[14]), "PB00_02" );
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//Datenbus
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failed |= generic_bus_attach_sig( part, &(D[0]), "PB00_10" );
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failed |= generic_bus_attach_sig( part, &(D[1]), "PB00_06" );
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failed |= generic_bus_attach_sig( part, &(D[2]), "PB00_13" );
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failed |= generic_bus_attach_sig( part, &(D[3]), "PB00_09" );
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failed |= generic_bus_attach_sig( part, &(D[4]), "PB00_14" );
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failed |= generic_bus_attach_sig( part, &(D[5]), "PB00_16" );
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failed |= generic_bus_attach_sig( part, &(D[6]), "PB02_01" );
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failed |= generic_bus_attach_sig( part, &(D[7]), "PB00_11" );
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if (failed) {
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free( bus->params );
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free ( bus );
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return NULL;
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}
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return bus;
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}
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/**
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* bus->driver->(*printinfo)
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*
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*/
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static void
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flashbscoach_bus_printinfo( bus_t *bus )
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{
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int i;
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for (i = 0; i < CHAIN->parts->len; i++)
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if (PART == CHAIN->parts->parts[i])
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break;
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printf( _("Goepel electronic Boundary Scan Coach compatible bus driver via BSR (JTAG part No. %d)\n"), i );
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}
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/**
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* bus->driver->(*init)
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*
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*/
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static int
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flashbscoach_bus_init( bus_t *bus )
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{
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part_t *p = PART;
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chain_t *chain = CHAIN;
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int i=0;
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part_set_instruction( p, "SAMPLE/PRELOAD" );
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chain_shift_instructions( chain );
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part_set_signal( p, DECA, 1, 1 );
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part_set_signal( p, DECB, 1, 1 );
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part_set_signal( p, DECC, 1, 1 );
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part_set_signal( p, OE_F, 1, 1 ); //OE_F low aktiv
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part_set_signal( p, WE_F, 1, 1 ); //WE_F low aktiv
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for(i = 0; i < 15; i++)
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part_set_signal( p, ADR[i], 1, 1);
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part_set_signal( p, D[0], 1, 0 );
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part_set_signal( p, D[1], 1, 0 );
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part_set_signal( p, D[2], 1, 0 );
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part_set_signal( p, D[3], 1, 0 );
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part_set_signal( p, D[4], 1, 0 );
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part_set_signal( p, D[5], 1, 0 );
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part_set_signal( p, D[6], 1, 0 );
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part_set_signal( p, D[7], 1, 0 );
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chain_shift_data_registers( chain, 0 );
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INITIALIZED = 1;
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return 0;
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}
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/**
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* bus->driver->(*area)
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*
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*/
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static int
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flashbscoach_bus_area( bus_t *bus, uint32_t adr, bus_area_t *area )
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{
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area->description = NULL;
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area->start = UINT32_C(0x00000000);
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area->length = UINT64_C(0x00100000000);
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area->width = 8;
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// area->width = part_get_signal( PART, part_find_signal( PART, "ROMSIZ" ) ) ? 16 : 32;
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return 0;
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}
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static void
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setup_data( bus_t *bus, uint32_t d )
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{
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int i;
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part_t *p = PART;
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bus_area_t area;
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flashbscoach_bus_area( bus, 0, &area);
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for (i = 0; i < area.width; i++)
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part_set_signal( p, D[i], 1, (d >> i) & 1 );
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}
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static void
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set_data_in( bus_t *bus )
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{
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part_t *p = PART;
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bus_area_t area;
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flashbscoach_bus_area( bus, 0, &area);
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part_set_signal( p, D[0], 0, 0 );
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part_set_signal( p, D[1], 0, 0 );
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part_set_signal( p, D[2], 0, 0 );
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part_set_signal( p, D[3], 0, 0 );
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part_set_signal( p, D[4], 0, 0 );
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part_set_signal( p, D[5], 0, 0 );
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part_set_signal( p, D[6], 0, 0 );
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part_set_signal( p, D[7], 0, 0 );
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}
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static void
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setup_address( bus_t *bus, uint32_t a)
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{
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int i;
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part_t *p = PART;
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for( i = 0; i < 15; i++)
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part_set_signal( p, ADR[i], 1, (a >>i) & 1);
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}
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static uint32_t
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get_data_out( bus_t *bus )
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{
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int i;
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part_t *p = PART;
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bus_area_t area;
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uint32_t d = 0;
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flashbscoach_bus_area( bus, 0, &area);
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for( i = 0; i < area.width; i++ )
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d |= (uint32_t)(part_get_signal( p, D[i] ) << i);
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return d;
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}
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/**
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* bus->driver->(*read_start)
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*
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*/
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static void
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flashbscoach_bus_read_start( bus_t *bus, uint32_t adr )
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{
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part_t *p = PART;
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chain_t *chain = CHAIN;
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LAST_ADR = adr;
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part_set_signal( p, DECA, 1, 0 );
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part_set_signal( p, DECB, 1, 1 );
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part_set_signal( p, DECC, 1, 1 );
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part_set_signal( p, OE_F, 1, 0 ); //OE_F low aktiv
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part_set_signal( p, WE_F, 1, 1); //WE_F low aktiv
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setup_address( bus, adr);
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set_data_in( bus );
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chain_shift_data_registers( chain, 0 );
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}
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/**
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* bus->driver->(*read_next)
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*
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*/
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static uint32_t
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flashbscoach_bus_read_next( bus_t *bus, uint32_t adr )
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{
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// part_t *p = PART;
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chain_t *chain = CHAIN;
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setup_address( bus, adr );
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chain_shift_data_registers( chain, 1 );
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// d = get_data_out( bus );
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// LAST_ADR = adr;
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return get_data_out( bus );
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}
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/**
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* bus->driver->(*read_end)
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*
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*/
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static uint32_t
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flashbscoach_bus_read_end( bus_t *bus )
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{
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part_t *p = PART;
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chain_t *chain = CHAIN;
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part_set_signal( p, DECA, 1, 1 );
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part_set_signal( p, DECB, 1, 1 );
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part_set_signal( p, DECC, 1, 1 );
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part_set_signal( p, OE_F, 1, 1 ); //OE_F low aktiv
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part_set_signal( p, WE_F, 1, 1 ); //WE_F low aktiv
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chain_shift_data_registers( chain, 1 );
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return get_data_out( bus );
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}
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/**
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* bus->driver->(*write)
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*
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*/
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static void
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flashbscoach_bus_write( bus_t *bus, uint32_t adr, uint32_t data )
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{
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part_t *p = PART;
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chain_t *chain = CHAIN;
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part_set_signal( p, DECA, 1, 0 );
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part_set_signal( p, DECB, 1, 1 );
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part_set_signal( p, DECC, 1, 1 );
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part_set_signal( p, OE_F, 1, 1 ); //OE_F low aktiv
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part_set_signal( p, WE_F, 1, 1); //WE_F low aktiv
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setup_address( bus, adr );
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setup_data( bus, data );
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chain_shift_data_registers( chain, 0 );
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part_set_signal( p, WE_F, 1, 0);
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chain_shift_data_registers( chain, 0 );
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part_set_signal( p, DECA, 1, 1 );
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part_set_signal( p, DECB, 1, 1 );
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part_set_signal( p, DECC, 1, 1 );
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part_set_signal( p, OE_F, 1, 1 ); //OE_F low aktiv
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part_set_signal( p, WE_F, 1, 1); //WE_F low aktiv
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chain_shift_data_registers( chain, 0);
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}
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const bus_driver_t bscoach_bus = {
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"flashbscoach",
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N_("Bustreiber für Flashprogrammierung auf Goepel Boundary Scan Coach via BSR"),
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flashbscoach_bus_new,
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generic_bus_free,
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flashbscoach_bus_printinfo,
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generic_bus_prepare_extest,
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flashbscoach_bus_area,
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flashbscoach_bus_read_start,
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flashbscoach_bus_read_next,
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flashbscoach_bus_read_end,
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generic_bus_read,
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flashbscoach_bus_write,
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flashbscoach_bus_init
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};
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