103 lines
2.0 KiB
C
103 lines
2.0 KiB
C
#include <common.h>
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#include <command.h>
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#include <init.h>
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#include <driver.h>
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#include <malloc.h>
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#include <asm-generic/errno.h>
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static struct device_d global_dev;
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int global_add_parameter(struct param_d *param)
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{
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return dev_add_parameter(&global_dev, param);
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}
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static int my_probe(struct device_d *dev)
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{
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return 0;
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}
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static struct device_d global_dev = {
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.name = "global",
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.id = "env",
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.map_base = 0,
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.size = 0,
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};
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static struct driver_d global_driver = {
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.name = "global",
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.probe = my_probe,
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};
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static int global_init(void)
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{
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global_driver.probe = my_probe;
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register_device(&global_dev);
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register_driver(&global_driver);
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return 0;
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}
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coredevice_initcall(global_init);
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static int do_get( cmd_tbl_t *cmdtp, int flag, int argc, char *argv[])
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{
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struct device_d *dev;
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char *endp, *str;
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if (argc < 3) {
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printf ("Usage:\n%s\n", cmdtp->usage);
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return 1;
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}
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dev = device_from_spec_str(argv[1], &endp);
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if (!dev) {
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printf("no such device: %s\n", argv[1]);
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return 1;
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}
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str = dev_get_param(dev, argv[2]);
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printf("%s\n",str);
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return 0;
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}
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U_BOOT_CMD(
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get, 3, 0, do_get,
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"get - get device variables\n",
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"\n"
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);
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static int do_set( cmd_tbl_t *cmdtp, int flag, int argc, char *argv[])
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{
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struct device_d *dev;
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char *endp, *val;
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int ret;
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if (argc < 4) {
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printf ("Usage:\n%s\n", cmdtp->usage);
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return 1;
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}
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dev = device_from_spec_str(argv[1], &endp);
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if (!dev) {
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printf("no such device: %s\n", argv[1]);
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return 1;
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}
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val = malloc(strlen(argv[3] + 1));
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if (!val)
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return -ENOMEM;
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strcpy(val, argv[3]);
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ret = dev_set_param(dev, argv[2], val);
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if (ret)
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printf("failed\n");
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return ret;
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}
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U_BOOT_CMD(
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set, 4, 0, do_set,
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"set - set device variables\n",
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"\n"
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);
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