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https://github.com/Telecominfraproject/OpenCellular.git
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f23e68d721
This adds the driver and a console command to read an Intersil ISL29305 light sensor connected to the EC. BUG=chrome-os-partner:23380 BRANCH=samus TEST=manual Run the "als" command from the EC console, while pointing the sensor in various directions. It should give higher numbers when facing a light source. If you get "Error 1", it means the ALS isn't powered. Change-Id: I855ed64dab7fc60e29126ab3e97669be24dc6a64 Signed-off-by: Bill Richardson <wfrichar@chromium.org> Reviewed-on: https://chromium-review.googlesource.com/176056
46 lines
963 B
C
46 lines
963 B
C
/* Copyright (c) 2013 The Chromium OS Authors. All rights reserved.
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* Use of this source code is governed by a BSD-style license that can be
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* found in the LICENSE file.
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*/
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/* This provides the interface for any Ambient Light Sensors that are connected
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* to the EC instead of the AP.
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*/
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#include "als.h"
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#include "common.h"
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#include "console.h"
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#include "host_command.h"
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#include "util.h"
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int als_read(enum als_id id, int *lux)
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{
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return als[id].read(lux);
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}
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/*****************************************************************************/
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/* Console commands */
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static int command_als(int argc, char **argv)
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{
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int i, rv, val;
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for (i = 0; i < ALS_COUNT; i++) {
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ccprintf("%s: ", als[i].name);
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rv = als_read(i, &val);
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switch (rv) {
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case EC_SUCCESS:
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ccprintf("%d lux\n", val);
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break;
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default:
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ccprintf("Error %d\n", rv);
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}
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}
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return EC_SUCCESS;
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}
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DECLARE_CONSOLE_COMMAND(als, command_als,
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NULL,
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"Print ALS values",
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NULL);
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