[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 <common.h>
#include <command.h>
#include <console.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(cmd_tbl_t *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 = simple_strtoul(argv[1], NULL, 16);

		/*
		 * Address is specified since argc > 2
		 */
		addr = simple_strtoul(argv[2], NULL, 16);

		/*
		 * If another parameter, it is the length to display.
		 * Length is the number of objects, not number of bytes.
		 */
		if (argc > 3)
			length = simple_strtoul(argv[3], NULL, 16);
	}

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