[people/ms/u-boot.git] / common / cmd_fpga.c

/*
 * (C) Copyright 2000, 2001
 * Rich Ireland, Enterasys Networks, rireland@enterasys.com.
 *
 * See file CREDITS for list of people who contributed to this
 * project.
 *
 * 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 2 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, write to the Free Software
 * Foundation, Inc., 59 Temple Place, Suite 330, Boston,
 * MA 02111-1307 USA
 *
 */

/*
 *  FPGA support
 */
#include <common.h>
#include <command.h>
#if (CONFIG_COMMANDS & CFG_CMD_NET)
#include <net.h>
#endif
#include <fpga.h>

#if 0
#define	FPGA_DEBUG
#endif

#ifdef	FPGA_DEBUG
#define	PRINTF(fmt,args...)	printf (fmt ,##args)
#else
#define PRINTF(fmt,args...)
#endif

#if defined (CONFIG_FPGA) && ( CONFIG_COMMANDS & CFG_CMD_FPGA )

/* Local functions */
static void fpga_usage ( cmd_tbl_t *cmdtp );
static int fpga_get_op( char *opstr );

/* Local defines */
#define FPGA_NONE   -1
#define FPGA_INFO   0
#define FPGA_LOAD   1
#define FPGA_DUMP   3

/* ------------------------------------------------------------------------- */
/* command form:
 *   fpga <op> <device number> <data addr> <datasize>
 * where op is 'load', 'dump', or 'info'
 * If there is no device number field, the fpga environment variable is used.
 * If there is no data addr field, the fpgadata environment variable is used.
 * The info command requires no data address field.
 */
int
do_fpga (cmd_tbl_t *cmdtp, int flag, int argc, char *argv[])
{
    int op, dev = FPGA_INVALID_DEVICE;
    size_t data_size = 0;
    void *fpga_data = NULL;
    char *devstr = getenv("fpga");
    char *datastr = getenv("fpgadata");
    int rc = FPGA_FAIL;

	if ( devstr ) dev = (int)simple_strtoul( devstr, NULL, 16 );
	if ( datastr ) fpga_data = (void *)simple_strtoul( datastr, NULL, 16 );

    switch ( argc )
    {
	    case 5: /* fpga <op> <dev> <data> <datasize> */
		    data_size = simple_strtoul( argv[4], NULL, 16 );
	    case 4: /* fpga <op> <dev> <data> */
		    fpga_data = (void *)simple_strtoul( argv[3], NULL, 16 );
			PRINTF(__FUNCTION__": fpga_data = 0x%x\n", (uint)fpga_data );
	    case 3: /* fpga <op> <dev | data addr> */
		    dev = (int)simple_strtoul( argv[2], NULL, 16 );
			PRINTF(__FUNCTION__": device = %d\n", dev );
			/* FIXME - this is a really weak test */
		    if (( argc == 3 ) && ( dev > fpga_count() )) { /* must be buffer ptr */
				PRINTF(__FUNCTION__": Assuming buffer pointer in arg 3\n");
			    fpga_data = (void *)dev;
				PRINTF(__FUNCTION__": fpga_data = 0x%x\n", (uint)fpga_data );
			    dev = FPGA_INVALID_DEVICE;  /* reset device num */
		    }
	    case 2: /* fpga <op> */
		    op = (int)fpga_get_op( argv[1] );
		    break;
	    default:
			PRINTF(__FUNCTION__": Too many or too few args (%d)\n", argc );
		    op = FPGA_NONE;    /* force usage display */
		    break;
    }

    switch ( op ) {
	    case FPGA_NONE:
		    fpga_usage( cmdtp );
		    break;

	    case FPGA_INFO:
		    rc = fpga_info( dev );
		    break;

	    case FPGA_LOAD:
                    rc = fpga_load( dev, fpga_data, data_size );
		    break;

	    case FPGA_DUMP:
                    rc = fpga_dump( dev, fpga_data, data_size );
		    break;

	    default:
		    printf( "Unknown operation.\n" );
		    fpga_usage( cmdtp );
		    break;
    }
    return (rc);
}

static void fpga_usage ( cmd_tbl_t *cmdtp )
{
	printf( "Usage:\n%s\n", cmdtp->usage );
}

/*
 * Map op to supported operations.  We don't use a table since we
 * would just have to relocate it from flash anyway.
 */
static int fpga_get_op( char *opstr )
{
	int op = FPGA_NONE;

	if (!strcmp ("info", opstr)) {
		op = FPGA_INFO;
	}
	else if (!strcmp ("load", opstr)) {
		op = FPGA_LOAD;
	}
	else if (!strcmp ("dump", opstr)) {
		op = FPGA_DUMP;
	}

	if ( op == FPGA_NONE ) {
		printf ("Unknown fpga operation \"%s\"\n", opstr);
	}
	return op;
}

U_BOOT_CMD(
	fpga,    6,     1,     do_fpga,
	"fpga   - loadable FPGA image support\n",
	"fpga [operation type] [device number] [image address] [image size]\n"
	"fpga operations:\n"
	"\tinfo\tlist known device information.\n"
	"\tload\tLoad device from memory buffer.\n"
	"\tdump\tLoad device to memory buffer.\n"
);
#endif	/* CONFIG_FPGA && CONFIG_COMMANDS & CFG_CMD_FPGA */
Commit	Line	Data
4a9cbbe8 WD	1	/*
	2	* (C) Copyright 2000, 2001
	3	* Rich Ireland, Enterasys Networks, rireland@enterasys.com.
	4	*
	5	* See file CREDITS for list of people who contributed to this
	6	* project.
	7	*
	8	* This program is free software; you can redistribute it and/or
	9	* modify it under the terms of the GNU General Public License as
	10	* published by the Free Software Foundation; either version 2 of
	11	* the License, or (at your option) any later version.
	12	*
	13	* This program is distributed in the hope that it will be useful,
	14	* but WITHOUT ANY WARRANTY; without even the implied warranty of
	15	* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
	16	* GNU General Public License for more details.
	17	*
	18	* You should have received a copy of the GNU General Public License
	19	* along with this program; if not, write to the Free Software
	20	* Foundation, Inc., 59 Temple Place, Suite 330, Boston,
	21	* MA 02111-1307 USA
	22	*
	23	*/
	24
	25	/*
	26	* FPGA support
	27	*/
	28	#include <common.h>
	29	#include <command.h>
4a9cbbe8 WD	30	#if (CONFIG_COMMANDS & CFG_CMD_NET)
	31	#include <net.h>
	32	#endif
8bde7f77	33	#include <fpga.h>
4a9cbbe8 WD	34
	35	#if 0
	36	#define FPGA_DEBUG
	37	#endif
	38
	39	#ifdef FPGA_DEBUG
	40	#define PRINTF(fmt,args...) printf (fmt ,##args)
	41	#else
	42	#define PRINTF(fmt,args...)
	43	#endif
	44
	45	#if defined (CONFIG_FPGA) && ( CONFIG_COMMANDS & CFG_CMD_FPGA )
	46
	47	/* Local functions */
	48	static void fpga_usage ( cmd_tbl_t *cmdtp );
	49	static int fpga_get_op( char *opstr );
	50
	51	/* Local defines */
	52	#define FPGA_NONE -1
	53	#define FPGA_INFO 0
	54	#define FPGA_LOAD 1
	55	#define FPGA_DUMP 3
	56
	57	/* ------------------------------------------------------------------------- */
	58	/* command form:
	59	* fpga <op> <device number> <data addr> <datasize>
	60	* where op is 'load', 'dump', or 'info'
	61	* If there is no device number field, the fpga environment variable is used.
	62	* If there is no data addr field, the fpgadata environment variable is used.
	63	* The info command requires no data address field.
	64	*/
	65	int
	66	do_fpga (cmd_tbl_t cmdtp, int flag, int argc, char argv[])
	67	{
	68	int op, dev = FPGA_INVALID_DEVICE;
	69	size_t data_size = 0;
	70	void *fpga_data = NULL;
	71	char *devstr = getenv("fpga");
	72	char *datastr = getenv("fpgadata");
9fd5e31f	73	int rc = FPGA_FAIL;
4a9cbbe8 WD	74
	75	if ( devstr ) dev = (int)simple_strtoul( devstr, NULL, 16 );
	76	if ( datastr ) fpga_data = (void *)simple_strtoul( datastr, NULL, 16 );
	77
	78	switch ( argc )
	79	{
	80	case 5: /* fpga <op> <dev> <data> <datasize> */
	81	data_size = simple_strtoul( argv[4], NULL, 16 );
	82	case 4: /* fpga <op> <dev> <data> */
	83	fpga_data = (void *)simple_strtoul( argv[3], NULL, 16 );
	84	PRINTF(__FUNCTION__": fpga_data = 0x%x\n", (uint)fpga_data );
	85	case 3: /* fpga <op> <dev \| data addr> */
	86	dev = (int)simple_strtoul( argv[2], NULL, 16 );
	87	PRINTF(__FUNCTION__": device = %d\n", dev );
	88	/* FIXME - this is a really weak test */
	89	if (( argc == 3 ) && ( dev > fpga_count() )) { /* must be buffer ptr */
	90	PRINTF(__FUNCTION__": Assuming buffer pointer in arg 3\n");
	91	fpga_data = (void *)dev;
	92	PRINTF(__FUNCTION__": fpga_data = 0x%x\n", (uint)fpga_data );
	93	dev = FPGA_INVALID_DEVICE; /* reset device num */
	94	}
	95	case 2: /* fpga <op> */
	96	op = (int)fpga_get_op( argv[1] );
	97	break;
	98	default:
	99	PRINTF(__FUNCTION__": Too many or too few args (%d)\n", argc );
	100	op = FPGA_NONE; /* force usage display */
	101	break;
	102	}
	103
	104	switch ( op ) {
	105	case FPGA_NONE:
	106	fpga_usage( cmdtp );
	107	break;
	108
	109	case FPGA_INFO:
9fd5e31f	110	rc = fpga_info( dev );
4a9cbbe8 WD	111	break;
	112
	113	case FPGA_LOAD:
9fd5e31f	114	rc = fpga_load( dev, fpga_data, data_size );
4a9cbbe8 WD	115	break;
	116
	117	case FPGA_DUMP:
9fd5e31f	118	rc = fpga_dump( dev, fpga_data, data_size );
4a9cbbe8 WD	119	break;
	120
	121	default:
	122	printf( "Unknown operation.\n" );
	123	fpga_usage( cmdtp );
	124	break;
	125	}
9fd5e31f	126	return (rc);
4a9cbbe8 WD	127	}
	128
	129	static void fpga_usage ( cmd_tbl_t *cmdtp )
	130	{
	131	printf( "Usage:\n%s\n", cmdtp->usage );
	132	}
	133
	134	/*
	135	* Map op to supported operations. We don't use a table since we
	136	* would just have to relocate it from flash anyway.
	137	*/
	138	static int fpga_get_op( char *opstr )
	139	{
	140	int op = FPGA_NONE;
	141
	142	if (!strcmp ("info", opstr)) {
	143	op = FPGA_INFO;
	144	}
	145	else if (!strcmp ("load", opstr)) {
	146	op = FPGA_LOAD;
	147	}
	148	else if (!strcmp ("dump", opstr)) {
	149	op = FPGA_DUMP;
	150	}
	151
	152	if ( op == FPGA_NONE ) {
	153	printf ("Unknown fpga operation \"%s\"\n", opstr);
	154	}
	155	return op;
	156	}
	157
0d498393 WD	158	U_BOOT_CMD(
0d498393 WD	159	fpga, 6, 1, do_fpga,
8bde7f77 WD	160	"fpga - loadable FPGA image support\n",
	161	"fpga [operation type] [device number] [image address] [image size]\n"
	162	"fpga operations:\n"
	163	"\tinfo\tlist known device information.\n"
	164	"\tload\tLoad device from memory buffer.\n"
	165	"\tdump\tLoad device to memory buffer.\n"
	166	);
4a9cbbe8	167	#endif /* CONFIG_FPGA && CONFIG_COMMANDS & CFG_CMD_FPGA */