From a4f8208919a4458ebe93d46d43a7cb0a13f7a0d8 Mon Sep 17 00:00:00 2001 From: Simon Glass Date: Tue, 7 Jul 2020 13:12:12 -0600 Subject: acpi: Add an acpi command to list/dump generated ACPI items Add a command that shows the individual blocks of data generated by each device, effectively splitting the full table into its component parts. This can be helpful for debugging. Signed-off-by: Simon Glass Reviewed-by: Wolfgang Wallner Reviewed-by: Bin Meng --- cmd/acpi.c | 15 +++++++++++++-- 1 file changed, 13 insertions(+), 2 deletions(-) (limited to 'cmd') diff --git a/cmd/acpi.c b/cmd/acpi.c index e9a9161a913..085a3a650d1 100644 --- a/cmd/acpi.c +++ b/cmd/acpi.c @@ -153,6 +153,17 @@ static int do_acpi_list(struct cmd_tbl *cmdtp, int flag, int argc, return 0; } +static int do_acpi_items(struct cmd_tbl *cmdtp, int flag, int argc, + char *const argv[]) +{ + bool dump_contents; + + dump_contents = argc >= 2 && !strcmp("-d", argv[1]); + acpi_dump_items(dump_contents ? ACPI_DUMP_CONTENTS : ACPI_DUMP_LIST); + + return 0; +} + static int do_acpi_dump(struct cmd_tbl *cmdtp, int flag, int argc, char *const argv[]) { @@ -160,8 +171,6 @@ static int do_acpi_dump(struct cmd_tbl *cmdtp, int flag, int argc, char sig[ACPI_NAME_LEN]; int ret; - if (argc < 2) - return CMD_RET_USAGE; name = argv[1]; if (strlen(name) != ACPI_NAME_LEN) { printf("Table name '%s' must be four characters\n", name); @@ -179,8 +188,10 @@ static int do_acpi_dump(struct cmd_tbl *cmdtp, int flag, int argc, static char acpi_help_text[] = "list - list ACPI tables\n" + "acpi items [-d] - List/dump each piece of ACPI data from devices\n" "acpi dump - Dump ACPI table"; U_BOOT_CMD_WITH_SUBCMDS(acpi, "ACPI tables", acpi_help_text, U_BOOT_SUBCMD_MKENT(list, 1, 1, do_acpi_list), + U_BOOT_SUBCMD_MKENT(items, 2, 1, do_acpi_items), U_BOOT_SUBCMD_MKENT(dump, 2, 1, do_acpi_dump)); -- cgit v1.3.1