LXR uboot/common/cmd

   1/*
   2 * (C) Copyright 2001
   3 * Erik Theisen, Wave 7 Optics, etheisen@mindspring.com
   4 *
   5 * See file CREDITS for list of people who contributed to this
   6 * project.
   7 *
   8 * This program is free software; you can redistribute it and/or
   9 * modify it under the terms of the GNU General Public License as
  10 * published by the Free Software Foundation; either version 2 of
  11 * the License, or (at your option) any later version.
  12 *
  13 * This program is distributed in the hope that it will be useful,
  14 * but WITHOUT ANY WARRANTY; without even the implied warranty of
  15 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
  16 * GNU General Public License for more details.
  17 *
  18 * You should have received a copy of the GNU General Public License
  19 * along with this program; if not, write to the Free Software
  20 * Foundation, Inc., 59 Temple Place, Suite 330, Boston,
  21 * MA 02111-1307 USA
  22 */
  23
  24#include <common.h>
  25#include <config.h>
  26#include <command.h>
  27
  28#include <dtt.h>
  29#include <i2c.h>
  30
  31int do_dtt (cmd_tbl_t * cmdtp, int flag, int argc, char *argv[])
  32{
  33        int i;
  34        unsigned char sensors[] = CONFIG_DTT_SENSORS;
  35        int old_bus;
  36
  37        /* switch to correct I2C bus */
  38        old_bus = I2C_GET_BUS();
  39        I2C_SET_BUS(CONFIG_SYS_DTT_BUS_NUM);
  40
  41        /*
  42         * Loop through sensors, read
  43         * temperature, and output it.
  44         */
  45        for (i = 0; i < sizeof (sensors); i++)
  46                printf ("DTT%d: %i C\n", i + 1, dtt_get_temp (sensors[i]));
  47
  48        /* switch back to original I2C bus */
  49        I2C_SET_BUS(old_bus);
  50
  51        return 0;
  52}       /* do_dtt() */
  53
  54/***************************************************/
  55
  56U_BOOT_CMD(
  57          dtt,  1,      1,      do_dtt,
  58          "Read temperature from Digital Thermometer and Thermostat",
  59          ""
  60);
  61