diff options
author | Simon Glass <sjg@chromium.org> | 2019-12-06 21:41:54 -0700 |
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committer | Bin Meng <bmeng.cn@gmail.com> | 2019-12-15 11:44:11 +0800 |
commit | 3b65ee34b908ce0c495c25987f5feb37ac163eab (patch) | |
tree | ba7a13fb9a4254844237c545e40a4068dba0ff84 /cmd/pmc.c | |
parent | 6c6d88e142e8714ed88d051c524036ff17278390 (diff) |
x86: sandbox: Add a PMC emulator and test
Add a simple PMC for sandbox to permit tests to run.
Signed-off-by: Simon Glass <sjg@chromium.org>
Reviewed-by: Bin Meng <bmeng.cn@gmail.com>
Diffstat (limited to 'cmd/pmc.c')
-rw-r--r-- | cmd/pmc.c | 81 |
1 files changed, 81 insertions, 0 deletions
diff --git a/cmd/pmc.c b/cmd/pmc.c new file mode 100644 index 0000000000..cafeba9fcc --- /dev/null +++ b/cmd/pmc.c @@ -0,0 +1,81 @@ +// SPDX-License-Identifier: GPL-2.0 +/* + * Intel PMC command + * + * Copyright 2019 Google LLC + */ + +#include <common.h> +#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(cmd_tbl_t *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(cmd_tbl_t *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 cmd_tbl_t 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(cmd_tbl_t *cmdtp, int flag, int argc, char *const argv[]) +{ + const cmd_tbl_t *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" + ); |