1 /* 2 * Copyright (c) 2013 Google, Inc 3 * 4 * (C) Copyright 2012 5 * Marek Vasut <marex@denx.de> 6 * 7 * SPDX-License-Identifier: GPL-2.0+ 8 */ 9 10 #include <common.h> 11 #include <dm.h> 12 #include <malloc.h> 13 #include <errno.h> 14 #include <asm/io.h> 15 #include <dm/root.h> 16 #include <dm/test.h> 17 #include <dm/uclass-internal.h> 18 19 static int display_succ(struct udevice *in, char *buf) 20 { 21 int len; 22 int ip = 0; 23 char local[16]; 24 struct udevice *pos, *n, *prev = NULL; 25 26 printf("%s- %s @ %08lx", buf, in->name, (ulong)map_to_sysmem(in)); 27 if (in->flags & DM_FLAG_ACTIVATED) 28 puts(" - activated"); 29 puts("\n"); 30 31 if (list_empty(&in->child_head)) 32 return 0; 33 34 len = strlen(buf); 35 strncpy(local, buf, sizeof(local)); 36 snprintf(local + len, 2, "|"); 37 if (len && local[len - 1] == '`') 38 local[len - 1] = ' '; 39 40 list_for_each_entry_safe(pos, n, &in->child_head, sibling_node) { 41 if (ip++) 42 display_succ(prev, local); 43 prev = pos; 44 } 45 46 snprintf(local + len, 2, "`"); 47 display_succ(prev, local); 48 49 return 0; 50 } 51 52 static int dm_dump(struct udevice *dev) 53 { 54 if (!dev) 55 return -EINVAL; 56 return display_succ(dev, ""); 57 } 58 59 static int do_dm_dump_all(cmd_tbl_t *cmdtp, int flag, int argc, 60 char * const argv[]) 61 { 62 struct udevice *root; 63 64 root = dm_root(); 65 printf("ROOT %08lx\n", (ulong)map_to_sysmem(root)); 66 return dm_dump(root); 67 } 68 69 static int do_dm_dump_uclass(cmd_tbl_t *cmdtp, int flag, int argc, 70 char * const argv[]) 71 { 72 struct uclass *uc; 73 int ret; 74 int id; 75 76 for (id = 0; id < UCLASS_COUNT; id++) { 77 struct udevice *dev; 78 79 ret = uclass_get(id, &uc); 80 if (ret) 81 continue; 82 83 printf("uclass %d: %s\n", id, uc->uc_drv->name); 84 for (ret = uclass_first_device(id, &dev); 85 dev; 86 ret = uclass_next_device(&dev)) { 87 printf(" %s @ %08lx:\n", dev->name, 88 (ulong)map_to_sysmem(dev)); 89 } 90 puts("\n"); 91 } 92 93 return 0; 94 } 95 96 #ifdef CONFIG_DM_TEST 97 static int do_dm_test(cmd_tbl_t *cmdtp, int flag, int argc, 98 char * const argv[]) 99 { 100 return dm_test_main(); 101 } 102 #define TEST_HELP "\ndm test Run tests" 103 #else 104 #define TEST_HELP 105 #endif 106 107 static cmd_tbl_t test_commands[] = { 108 U_BOOT_CMD_MKENT(tree, 0, 1, do_dm_dump_all, "", ""), 109 U_BOOT_CMD_MKENT(uclass, 1, 1, do_dm_dump_uclass, "", ""), 110 #ifdef CONFIG_DM_TEST 111 U_BOOT_CMD_MKENT(test, 1, 1, do_dm_test, "", ""), 112 #endif 113 }; 114 115 static int do_dm(cmd_tbl_t *cmdtp, int flag, int argc, char * const argv[]) 116 { 117 cmd_tbl_t *test_cmd; 118 int ret; 119 120 if (argc != 2) 121 return CMD_RET_USAGE; 122 test_cmd = find_cmd_tbl(argv[1], test_commands, 123 ARRAY_SIZE(test_commands)); 124 argc -= 2; 125 argv += 2; 126 if (!test_cmd || argc > test_cmd->maxargs) 127 return CMD_RET_USAGE; 128 129 ret = test_cmd->cmd(test_cmd, flag, argc, argv); 130 131 return cmd_process_error(test_cmd, ret); 132 } 133 134 U_BOOT_CMD( 135 dm, 2, 1, do_dm, 136 "Driver model low level access", 137 "tree Dump driver model tree\n" 138 "dm uclass Dump list of instances for each uclass" 139 TEST_HELP 140 ); 141