This command is not required for driver model operation, but can be useful for testing. It provides simple dumps of internal data structures.
Signed-off-by: Simon Glass sjg@chromium.org Signed-off-by: Marek Vasut marex@denx.de Signed-off-by: Pavel Herrmann morpheus.ibis@gmail.com Signed-off-by: Viktor Křivák viktor.krivak@gmail.com Signed-off-by: Tomas Hlavacek tmshlvck@gmail.com ---
Changes in v7: None Changes in v6: None Changes in v5: - Change to new SPDX license headers
Changes in v4: - Change 'dm dump' command to 'dm tree'
Changes in v3: None Changes in v2: None
include/configs/sandbox.h | 1 + test/dm/Makefile | 1 + test/dm/cmd_dm.c | 133 ++++++++++++++++++++++++++++++++++++++++++++++ 3 files changed, 135 insertions(+) create mode 100644 test/dm/cmd_dm.c
diff --git a/include/configs/sandbox.h b/include/configs/sandbox.h index e412047..734f90b 100644 --- a/include/configs/sandbox.h +++ b/include/configs/sandbox.h @@ -21,6 +21,7 @@ #define CONFIG_BOOTSTAGE #define CONFIG_BOOTSTAGE_REPORT #define CONFIG_DM +#define CONFIG_CMD_DM #define CONFIG_DM_TEST
/* Number of bits in a C 'long' on this architecture */ diff --git a/test/dm/Makefile b/test/dm/Makefile index 6af85b9..4e9afe6 100644 --- a/test/dm/Makefile +++ b/test/dm/Makefile @@ -4,6 +4,7 @@ # SPDX-License-Identifier: GPL-2.0+ #
+obj-$(CONFIG_CMD_DM) += cmd_dm.o obj-$(CONFIG_DM_TEST) += test-driver.o obj-$(CONFIG_DM_TEST) += test-fdt.o obj-$(CONFIG_DM_TEST) += test-main.o diff --git a/test/dm/cmd_dm.c b/test/dm/cmd_dm.c new file mode 100644 index 0000000..a03fe20 --- /dev/null +++ b/test/dm/cmd_dm.c @@ -0,0 +1,133 @@ +/* + * Copyright (c) 2013 Google, Inc + * + * (C) Copyright 2012 + * Marek Vasut marex@denx.de + * + * SPDX-License-Identifier: GPL-2.0+ + */ + +#include <common.h> +#include <dm.h> +#include <malloc.h> +#include <errno.h> +#include <asm/io.h> +#include <dm/root.h> +#include <dm/test.h> +#include <dm/uclass-internal.h> + +static int display_succ(struct device *in, char *buf) +{ + int len; + int ip = 0; + char local[16]; + struct device *pos, *n, *prev = NULL; + + printf("%s- %s @ %08x", buf, in->name, map_to_sysmem(in)); + if (in->flags & DM_FLAG_ACTIVATED) + puts(" - activated"); + puts("\n"); + + if (list_empty(&in->child_head)) + return 0; + + len = strlen(buf); + strncpy(local, buf, sizeof(local)); + snprintf(local + len, 2, "|"); + if (len && local[len - 1] == '`') + local[len - 1] = ' '; + + list_for_each_entry_safe(pos, n, &in->child_head, sibling_node) { + if (ip++) + display_succ(prev, local); + prev = pos; + } + + snprintf(local + len, 2, "`"); + display_succ(prev, local); + + return 0; +} + +static int dm_dump(struct device *dev) +{ + if (!dev) + return -EINVAL; + return display_succ(dev, ""); +} + +static int do_dm_dump_all(cmd_tbl_t *cmdtp, int flag, int argc, + char * const argv[]) +{ + struct device *root; + + root = dm_root(); + printf("ROOT %08x\n", map_to_sysmem(root)); + return dm_dump(root); +} + +static int do_dm_dump_uclass(cmd_tbl_t *cmdtp, int flag, int argc, + char * const argv[]) +{ + struct uclass *uc; + int ret; + int id; + + for (id = 0; id < UCLASS_COUNT; id++) { + struct device *dev; + + ret = uclass_get(id, &uc); + if (ret) + continue; + + printf("uclass %d: %s\n", id, uc->uc_drv->name); + for (ret = uclass_first_device(id, &dev); + dev; + ret = uclass_next_device(&dev)) { + printf(" %s @ %08x:\n", dev->name, + map_to_sysmem(dev)); + } + puts("\n"); + } + + return 0; +} + +static int do_dm_test(cmd_tbl_t *cmdtp, int flag, int argc, + char * const argv[]) +{ + return dm_test_main(); +} + +static cmd_tbl_t test_commands[] = { + U_BOOT_CMD_MKENT(tree, 0, 1, do_dm_dump_all, "", ""), + U_BOOT_CMD_MKENT(uclass, 1, 1, do_dm_dump_uclass, "", ""), + U_BOOT_CMD_MKENT(test, 1, 1, do_dm_test, "", ""), +}; + +static int do_dm(cmd_tbl_t *cmdtp, int flag, int argc, char * const argv[]) +{ + cmd_tbl_t *test_cmd; + int ret; + + if (argc != 2) + return CMD_RET_USAGE; + test_cmd = find_cmd_tbl(argv[1], test_commands, + ARRAY_SIZE(test_commands)); + argc -= 2; + argv += 2; + if (!test_cmd || argc > test_cmd->maxargs) + return CMD_RET_USAGE; + + ret = test_cmd->cmd(test_cmd, flag, argc, argv); + + return cmd_process_error(test_cmd, ret); +} + +U_BOOT_CMD( + dm, 2, 1, do_dm, + "Driver model low level access", + "tree Dump driver model tree\n" + "dm uclass Dump list of instances for each uclass\n" + "dm test Run tests" +);