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wdenk38635852002-08-27 05:55:31 +00001/*
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>
wdenk38635852002-08-27 05:55:31 +000027
wdenk38635852002-08-27 05:55:31 +000028#include <dtt.h>
Stefan Roese0dc018e2007-02-20 10:51:26 +010029#include <i2c.h>
wdenk38635852002-08-27 05:55:31 +000030
Wolfgang Denk54841ab2010-06-28 22:00:46 +020031int do_dtt (cmd_tbl_t * cmdtp, int flag, int argc, char * const argv[])
wdenk38635852002-08-27 05:55:31 +000032{
33 int i;
34 unsigned char sensors[] = CONFIG_DTT_SENSORS;
Stefan Roese0dc018e2007-02-20 10:51:26 +010035 int old_bus;
36
37 /* switch to correct I2C bus */
38 old_bus = I2C_GET_BUS();
Jean-Christophe PLAGNIOL-VILLARD6d0f6bc2008-10-16 15:01:15 +020039 I2C_SET_BUS(CONFIG_SYS_DTT_BUS_NUM);
wdenk38635852002-08-27 05:55:31 +000040
41 /*
42 * Loop through sensors, read
43 * temperature, and output it.
44 */
Stefan Roese0dc018e2007-02-20 10:51:26 +010045 for (i = 0; i < sizeof (sensors); i++)
wdenk38635852002-08-27 05:55:31 +000046 printf ("DTT%d: %i C\n", i + 1, dtt_get_temp (sensors[i]));
Stefan Roese0dc018e2007-02-20 10:51:26 +010047
48 /* switch back to original I2C bus */
49 I2C_SET_BUS(old_bus);
wdenk38635852002-08-27 05:55:31 +000050
51 return 0;
52} /* do_dtt() */
53
wdenk8bde7f72003-06-27 21:31:46 +000054/***************************************************/
55
wdenk0d498392003-07-01 21:06:45 +000056U_BOOT_CMD(
57 dtt, 1, 1, do_dtt,
Wolfgang Denka89c33d2009-05-24 17:06:54 +020058 "Read temperature from Digital Thermometer and Thermostat",
59 ""
wdenk8bde7f72003-06-27 21:31:46 +000060);