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e46d0fcbc8
Implement ALS code and add a new thermal sensor (Fintek, F75303) BUG=b:71839392 BRANCH=none TEST=Verify Nami can read ALS and thermal data via I2C by ec console. Change-Id: I0f8fd486f62508bbca30a57f435b9f26621cf34b Signed-off-by: Elmo_Lan <elmo_lan@compal.corp-partner.google.com> Reviewed-on: https://chromium-review.googlesource.com/863350 Commit-Ready: Elmo Lan <elmo_lan@compal.corp-partner.google.com> Tested-by: Elmo Lan <elmo_lan@compal.corp-partner.google.com> Reviewed-by: Daisuke Nojiri <dnojiri@chromium.org> Reviewed-by: Elmo Lan <elmo_lan@compal.corp-partner.google.com>
64 lines
1.3 KiB
C
64 lines
1.3 KiB
C
/* Copyright 2018 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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/* F75303 temperature sensor module for Chrome EC */
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#include "common.h"
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#include "f75303.h"
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#include "i2c.h"
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#include "hooks.h"
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#include "util.h"
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static int temp_val_local;
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static int temp_val_remote1;
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/**
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* Read 8 bits register from temp sensor.
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*/
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static int raw_read8(const int offset, int *data_ptr)
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{
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return i2c_read8(I2C_PORT_THERMAL, F75303_I2C_ADDR, offset, data_ptr);
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}
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static int get_temp(const int offset, int *temp_ptr)
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{
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int rv;
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int temp_raw = 0;
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rv = raw_read8(offset, &temp_raw);
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if (rv != 0)
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return rv;
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*temp_ptr = temp_raw;
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return EC_SUCCESS;
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}
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int f75303_get_val(int idx, int *temp_ptr)
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{
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switch (idx) {
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case F75303_IDX_LOCAL:
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*temp_ptr = temp_val_local;
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break;
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case F75303_IDX_REMOTE:
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*temp_ptr = temp_val_remote1;
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break;
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default:
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return EC_ERROR_UNKNOWN;
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}
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return EC_SUCCESS;
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}
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static void f75303_sensor_poll(void)
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{
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get_temp(F75303_TEMP_LOCAL, &temp_val_local);
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temp_val_local = C_TO_K(temp_val_local);
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get_temp(F75303_TEMP_REMOTE, &temp_val_remote1);
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temp_val_remote1 = C_TO_K(temp_val_remote1);
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}
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DECLARE_HOOK(HOOK_SECOND, f75303_sensor_poll, HOOK_PRIO_TEMP_SENSOR);
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