common/cmd_demo.c

   1 /*
   2  * Copyright (c) 2013 Google, Inc
   3  *
   4  * (C) Copyright 2012
   5  * Pavel Herrmann <morpheus.ibis@gmail.com>
   6  *
   7  * SPDX-License-Identifier:     GPL-2.0+
   8  */
   9
  10 #include <common.h>
  11 #include <dm-demo.h>
  12 #include <asm/io.h>
  13
  14 struct udevice *demo_dev;
  15
  16 static int do_demo_hello(cmd_tbl_t *cmdtp, int flag, int argc,
  17                          char * const argv[])
  18 {
  19         int ch = 0;
  20
  21         if (argc)
  22                 ch = *argv[0];
  23
  24         return demo_hello(demo_dev, ch);
  25 }
  26
  27 static int do_demo_status(cmd_tbl_t *cmdtp, int flag, int argc,
  28                           char * const argv[])
  29 {
  30         int status;
  31         int ret;
  32
  33         ret = demo_status(demo_dev, &status);
  34         if (ret)
  35                 return ret;
  36
  37         printf("Status: %d\n", status);
  38
  39         return 0;
  40 }
  41
  42 int do_demo_list(cmd_tbl_t *cmdtp, int flag, int argc, char * const argv[])
  43 {
  44         struct udevice *dev;
  45         int i, ret;
  46
  47         puts("Demo uclass entries:\n");
  48
  49         for (i = 0, ret = uclass_first_device(UCLASS_DEMO, &dev);
  50              dev;
  51              ret = uclass_next_device(&dev)) {
  52                 printf("entry %d - instance %08x, ops %08x, platdata %08x\n",
  53                        i++, map_to_sysmem(dev),
  54                        map_to_sysmem(dev->driver->ops),
  55                        map_to_sysmem(dev_get_platdata(dev)));
  56         }
  57
  58         return cmd_process_error(cmdtp, ret);
  59 }
  60
  61 static cmd_tbl_t demo_commands[] = {
  62         U_BOOT_CMD_MKENT(list, 0, 1, do_demo_list, "", ""),
  63         U_BOOT_CMD_MKENT(hello, 2, 1, do_demo_hello, "", ""),
  64         U_BOOT_CMD_MKENT(status, 1, 1, do_demo_status, "", ""),
  65 };
  66
  67 static int do_demo(cmd_tbl_t *cmdtp, int flag, int argc, char * const argv[])
  68 {
  69         cmd_tbl_t *demo_cmd;
  70         int devnum = 0;
  71         int ret;
  72
  73         if (argc < 2)
  74                 return CMD_RET_USAGE;
  75         demo_cmd = find_cmd_tbl(argv[1], demo_commands,
  76                                 ARRAY_SIZE(demo_commands));
  77         argc -= 2;
  78         argv += 2;
  79         if (!demo_cmd || argc > demo_cmd->maxargs)
  80                 return CMD_RET_USAGE;
  81
  82         if (argc) {
  83                 devnum = simple_strtoul(argv[0], NULL, 10);
  84                 ret = uclass_get_device(UCLASS_DEMO, devnum, &demo_dev);
  85                 if (ret)
  86                         return cmd_process_error(cmdtp, ret);
  87                 argc--;
  88                 argv++;
  89         }
  90
  91         ret = demo_cmd->cmd(demo_cmd, flag, argc, argv);
  92
  93         return cmd_process_error(demo_cmd, ret);
  94 }
  95
  96 U_BOOT_CMD(
  97         demo,   4,      1,      do_demo,
  98         "Driver model (dm) demo operations",
  99         "list                     List available demo devices\n"
 100         "demo hello <num> [<char>]     Say hello\n"
 101         "demo status <num>             Get demo device status"
 102 );