[J-u-boot.git] / cmd / fpgad.c

// SPDX-License-Identifier: GPL-2.0+
/*
 * (C) Copyright 2013
 * Dirk Eibach,  Guntermann & Drunck GmbH, [email protected]
 *
 * based on cmd_mem.c
 * (C) Copyright 2000
 * Wolfgang Denk, DENX Software Engineering, [email protected].
 */

#include <command.h>
#include <console.h>
#include <display_options.h>
#include <vsprintf.h>

#include <gdsys_fpga.h>

static uint	dp_last_fpga;
static uint	dp_last_addr;
static uint	dp_last_length = 0x40;

/*
 * FPGA Memory Display
 *
 * Syntax:
 *	fpgad {fpga} {addr} {len}
 */
#define DISP_LINE_LEN	16
int do_fpga_md(struct cmd_tbl *cmdtp, int flag, int argc, char *const argv[])
{
	unsigned int k;
	unsigned int fpga;
	ulong	addr, length;
	int rc = 0;
	u16 linebuf[DISP_LINE_LEN/sizeof(u16)];
	ulong nbytes;

	/*
	 * We use the last specified parameters, unless new ones are
	 * entered.
	 */
	fpga = dp_last_fpga;
	addr = dp_last_addr;
	length = dp_last_length;

	if (argc < 3)
		return CMD_RET_USAGE;

	if ((flag & CMD_FLAG_REPEAT) == 0) {
		/*
		 * FPGA is specified since argc > 2
		 */
		fpga = hextoul(argv[1], NULL);

		/*
		 * Address is specified since argc > 2
		 */
		addr = hextoul(argv[2], NULL);

		/*
		 * If another parameter, it is the length to display.
		 * Length is the number of objects, not number of bytes.
		 */
		if (argc > 3)
			length = hextoul(argv[3], NULL);
	}

	nbytes = length * sizeof(u16);
	do {
		ulong linebytes = (nbytes > DISP_LINE_LEN) ?
				  DISP_LINE_LEN : nbytes;

		for (k = 0; k < linebytes / sizeof(u16); ++k)
			fpga_get_reg(fpga,
				     (u16 *)fpga_ptr[fpga] + addr
				     / sizeof(u16) + k,
				     addr + k * sizeof(u16),
				     &linebuf[k]);
		print_buffer(addr, (void *)linebuf, sizeof(u16),
			     linebytes / sizeof(u16),
			     DISP_LINE_LEN / sizeof(u16));

		nbytes -= linebytes;
		addr += linebytes;
		if (ctrlc()) {
			rc = 1;
			break;
		}
	} while (nbytes > 0);

	dp_last_fpga = fpga;
	dp_last_addr = addr;
	dp_last_length = length;
	return rc;
}

U_BOOT_CMD(
	fpgad,	4,	1,	do_fpga_md,
	"fpga register display",
	"fpga address [# of objects]"
);
Commit	Line	Data
83d290c5	1	// SPDX-License-Identifier: GPL-2.0+
869b550e DE	2	/*
	3	* (C) Copyright 2013
	4	* Dirk Eibach, Guntermann & Drunck GmbH, [email protected]
	5	*
	6	* based on cmd_mem.c
	7	* (C) Copyright 2000
	8	* Wolfgang Denk, DENX Software Engineering, [email protected].
869b550e DE	9	*/
869b550e DE	10
869b550e	11	#include <command.h>
24b852a7	12	#include <console.h>
4e4bf944	13	#include <display_options.h>
03de305e	14	#include <vsprintf.h>
869b550e DE	15
	16	#include <gdsys_fpga.h>
	17
	18	static uint dp_last_fpga;
	19	static uint dp_last_addr;
	20	static uint dp_last_length = 0x40;
	21
	22	/*
	23	* FPGA Memory Display
	24	*
	25	* Syntax:
	26	* fpgad {fpga} {addr} {len}
	27	*/
	28	#define DISP_LINE_LEN 16
09140113	29	int do_fpga_md(struct cmd_tbl cmdtp, int flag, int argc, char const argv[])
869b550e DE	30	{
	31	unsigned int k;
	32	unsigned int fpga;
	33	ulong addr, length;
	34	int rc = 0;
f1cdde28 DE	35	u16 linebuf[DISP_LINE_LEN/sizeof(u16)];
f1cdde28 DE	36	ulong nbytes;
869b550e DE	37
	38	/*
	39	* We use the last specified parameters, unless new ones are
	40	* entered.
	41	*/
	42	fpga = dp_last_fpga;
	43	addr = dp_last_addr;
	44	length = dp_last_length;
	45
	46	if (argc < 3)
	47	return CMD_RET_USAGE;
	48
	49	if ((flag & CMD_FLAG_REPEAT) == 0) {
	50	/*
	51	* FPGA is specified since argc > 2
	52	*/
7e5f460e	53	fpga = hextoul(argv[1], NULL);
869b550e DE	54
	55	/*
	56	* Address is specified since argc > 2
	57	*/
7e5f460e	58	addr = hextoul(argv[2], NULL);
869b550e DE	59
	60	/*
	61	* If another parameter, it is the length to display.
	62	* Length is the number of objects, not number of bytes.
	63	*/
	64	if (argc > 3)
7e5f460e	65	length = hextoul(argv[3], NULL);
869b550e DE	66	}
869b550e DE	67
f1cdde28 DE	68	nbytes = length * sizeof(u16);
	69	do {
	70	ulong linebytes = (nbytes > DISP_LINE_LEN) ?
	71	DISP_LINE_LEN : nbytes;
	72
	73	for (k = 0; k < linebytes / sizeof(u16); ++k)
	74	fpga_get_reg(fpga,
	75	(u16 *)fpga_ptr[fpga] + addr
	76	/ sizeof(u16) + k,
	77	addr + k * sizeof(u16),
	78	&linebuf[k]);
	79	print_buffer(addr, (void *)linebuf, sizeof(u16),
	80	linebytes / sizeof(u16),
	81	DISP_LINE_LEN / sizeof(u16));
	82
	83	nbytes -= linebytes;
	84	addr += linebytes;
	85	if (ctrlc()) {
	86	rc = 1;
	87	break;
	88	}
	89	} while (nbytes > 0);
869b550e DE	90
	91	dp_last_fpga = fpga;
	92	dp_last_addr = addr;
	93	dp_last_length = length;
	94	return rc;
	95	}
	96
	97	U_BOOT_CMD(
	98	fpgad, 4, 1, do_fpga_md,
	99	"fpga register display",
	100	"fpga address [# of objects]"
	101	);