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

// SPDX-License-Identifier: GPL-2.0
/*
 * Intel PMC command
 *
 * Copyright 2019 Google LLC
 */

#include <command.h>
#include <dm.h>
#include <power/acpi_pmc.h>

static int get_pmc_dev(struct udevice **devp)
{
	struct udevice *dev;
	int ret;

	ret = uclass_first_device_err(UCLASS_ACPI_PMC, &dev);
	if (ret) {
		printf("Could not find device (err=%d)\n", ret);
		return ret;
	}
	ret = pmc_init(dev);
	if (ret) {
		printf("Could not init device (err=%d)\n", ret);
		return ret;
	}
	*devp = dev;

	return 0;
}

static int do_pmc_init(struct cmd_tbl *cmdtp, int flag, int argc,
		       char *const argv[])
{
	struct udevice *dev;
	int ret;

	ret = get_pmc_dev(&dev);
	if (ret)
		return CMD_RET_FAILURE;

	return 0;
}

static int do_pmc_info(struct cmd_tbl *cmdtp, int flag, int argc,
		       char *const argv[])
{
	struct udevice *dev;
	int ret;

	ret = get_pmc_dev(&dev);
	if (ret)
		return CMD_RET_FAILURE;
	pmc_dump_info(dev);

	return 0;
}

static struct cmd_tbl cmd_pmc_sub[] = {
	U_BOOT_CMD_MKENT(init, 0, 1, do_pmc_init, "", ""),
	U_BOOT_CMD_MKENT(info, 0, 1, do_pmc_info, "", ""),
};

static int do_pmc(struct cmd_tbl *cmdtp, int flag, int argc, char *const argv[])
{
	const struct cmd_tbl *cp;

	if (argc < 2) /* no subcommand */
		return cmd_usage(cmdtp);

	cp = find_cmd_tbl(argv[1], &cmd_pmc_sub[0], ARRAY_SIZE(cmd_pmc_sub));
	if (!cp)
		return CMD_RET_USAGE;

	return cp->cmd(cmdtp, flag, argc, argv);
}

U_BOOT_CMD(
	pmc, 2, 1, do_pmc, "Power-management controller info",
	"info - read state and show info about the PMC\n"
	"pmc init - read state from the PMC\n"
	);
Commit	Line	Data
3b65ee34 SG	1	// SPDX-License-Identifier: GPL-2.0
	2	/*
	3	* Intel PMC command
	4	*
	5	* Copyright 2019 Google LLC
	6	*/
	7
3b65ee34 SG	8	#include <command.h>
	9	#include <dm.h>
	10	#include <power/acpi_pmc.h>
	11
	12	static int get_pmc_dev(struct udevice **devp)
	13	{
	14	struct udevice *dev;
	15	int ret;
	16
	17	ret = uclass_first_device_err(UCLASS_ACPI_PMC, &dev);
	18	if (ret) {
	19	printf("Could not find device (err=%d)\n", ret);
	20	return ret;
	21	}
	22	ret = pmc_init(dev);
	23	if (ret) {
	24	printf("Could not init device (err=%d)\n", ret);
	25	return ret;
	26	}
	27	*devp = dev;
	28
	29	return 0;
	30	}
	31
09140113 SG	32	static int do_pmc_init(struct cmd_tbl *cmdtp, int flag, int argc,
09140113 SG	33	char *const argv[])
3b65ee34 SG	34	{
	35	struct udevice *dev;
	36	int ret;
	37
	38	ret = get_pmc_dev(&dev);
	39	if (ret)
	40	return CMD_RET_FAILURE;
	41
	42	return 0;
	43	}
	44
09140113 SG	45	static int do_pmc_info(struct cmd_tbl *cmdtp, int flag, int argc,
09140113 SG	46	char *const argv[])
3b65ee34 SG	47	{
	48	struct udevice *dev;
	49	int ret;
	50
	51	ret = get_pmc_dev(&dev);
	52	if (ret)
	53	return CMD_RET_FAILURE;
	54	pmc_dump_info(dev);
	55
	56	return 0;
	57	}
	58
09140113	59	static struct cmd_tbl cmd_pmc_sub[] = {
3b65ee34 SG	60	U_BOOT_CMD_MKENT(init, 0, 1, do_pmc_init, "", ""),
	61	U_BOOT_CMD_MKENT(info, 0, 1, do_pmc_info, "", ""),
	62	};
	63
09140113	64	static int do_pmc(struct cmd_tbl cmdtp, int flag, int argc, char const argv[])
3b65ee34	65	{
09140113	66	const struct cmd_tbl *cp;
3b65ee34 SG	67
	68	if (argc < 2) /* no subcommand */
	69	return cmd_usage(cmdtp);
	70
	71	cp = find_cmd_tbl(argv[1], &cmd_pmc_sub[0], ARRAY_SIZE(cmd_pmc_sub));
	72	if (!cp)
	73	return CMD_RET_USAGE;
	74
	75	return cp->cmd(cmdtp, flag, argc, argv);
	76	}
	77
	78	U_BOOT_CMD(
	79	pmc, 2, 1, do_pmc, "Power-management controller info",
	80	"info - read state and show info about the PMC\n"
	81	"pmc init - read state from the PMC\n"
	82	);