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https://github.com/Telecominfraproject/OpenCellular.git
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360d91573a
And tidy reporting fan/thermal via memmap.
BUG=chrome-os-partner:11628
TEST=manual
ectool pwmgetfanrpm -> should report fan speed
ectool temps N ->
should work for N=0-9
reports error for N=15-23
reports invalid sensor ID for N<0 or N>23
Change-Id: I484f81399f5e9dae9c759401091cc6f5acc733ff
Signed-off-by: Randall Spangler <rspangler@chromium.org>
Reviewed-on: https://gerrit.chromium.org/gerrit/28032
Reviewed-by: Bill Richardson <wfrichar@chromium.org>
154 lines
3.1 KiB
C
154 lines
3.1 KiB
C
/* Copyright (c) 2011 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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/* Temperature sensor module for Chrome EC */
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#include "chip_temp_sensor.h"
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#include "chipset.h"
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#include "common.h"
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#include "console.h"
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#include "gpio.h"
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#include "i2c.h"
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#include "host_command.h"
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#include "peci.h"
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#include "task.h"
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#include "temp_sensor.h"
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#include "thermal.h"
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#include "timer.h"
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#include "tmp006.h"
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#include "util.h"
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/* Defined in board_temp_sensor.c. Must be in the same order as
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* in enum temp_sensor_id.
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*/
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extern const struct temp_sensor_t temp_sensors[TEMP_SENSOR_COUNT];
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int temp_sensor_read(enum temp_sensor_id id)
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{
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const struct temp_sensor_t *sensor;
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if (id < 0 || id >= TEMP_SENSOR_COUNT)
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return -1;
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sensor = temp_sensors + id;
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return sensor->read(sensor->idx);
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}
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int temp_sensor_powered(enum temp_sensor_id id)
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{
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int flag = temp_sensors[id].power_flags;
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if (flag & TEMP_SENSOR_POWER_VS &&
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gpio_get_level(GPIO_PGOOD_1_8VS) == 0)
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return 0;
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if (flag & TEMP_SENSOR_POWER_CPU &&
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!chipset_in_state(CHIPSET_STATE_ON))
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return 0;
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return 1;
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}
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void poll_slow_sensors(void)
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{
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/* Poll every second */
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#ifdef CONFIG_TMP006
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tmp006_poll();
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#endif
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#ifdef CHIP_lm4
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chip_temp_sensor_poll();
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#endif
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}
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static void poll_fast_sensors(void)
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{
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/* Poll every 1/4 second */
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#ifdef CONFIG_PECI
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peci_temp_sensor_poll();
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#endif
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}
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static void update_mapped_memory(void)
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{
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int i, t;
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uint8_t *mptr = host_get_memmap(EC_MEMMAP_TEMP_SENSOR);
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for (i = 0; i < TEMP_SENSOR_COUNT; i++, mptr++) {
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/*
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* Switch to second range if first one is full, or stop if
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* second range is also full.
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*/
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if (i == EC_TEMP_SENSOR_ENTRIES)
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mptr = host_get_memmap(EC_MEMMAP_TEMP_SENSOR_B);
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else if (i >= EC_TEMP_SENSOR_ENTRIES +
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EC_TEMP_SENSOR_B_ENTRIES)
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break;
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if (!temp_sensor_powered(i)) {
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*mptr = EC_TEMP_SENSOR_NOT_POWERED;
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continue;
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}
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t = temp_sensor_read(i);
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if (t == -1)
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*mptr = EC_TEMP_SENSOR_ERROR;
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else
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*mptr = t - EC_TEMP_SENSOR_OFFSET;
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}
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}
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void temp_sensor_task(void)
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{
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int i;
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/* Initialize memory-mapped data */
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memset(host_get_memmap(EC_MEMMAP_TEMP_SENSOR),
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EC_TEMP_SENSOR_NOT_PRESENT, EC_TEMP_SENSOR_ENTRIES);
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memset(host_get_memmap(EC_MEMMAP_TEMP_SENSOR_B),
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EC_TEMP_SENSOR_NOT_PRESENT, EC_TEMP_SENSOR_B_ENTRIES);
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/* Temp sensor data is present, with B range supported. */
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*host_get_memmap(EC_MEMMAP_THERMAL_VERSION) = 2;
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while (1) {
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for (i = 0; i < 4; ++i) {
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usleep(250000);
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poll_fast_sensors();
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}
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poll_slow_sensors();
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update_mapped_memory();
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}
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}
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/*****************************************************************************/
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/* Console commands */
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static int command_temps(int argc, char **argv)
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{
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int i;
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int rv = EC_SUCCESS;
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int t;
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for (i = 0; i < TEMP_SENSOR_COUNT; ++i) {
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ccprintf(" %-20s: ", temp_sensors[i].name);
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t = temp_sensor_read(i);
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if (t < 0) {
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ccprintf("Error\n");
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rv = EC_ERROR_UNKNOWN;
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} else
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ccprintf("%d K = %d C\n", t, t - 273);
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}
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return rv;
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}
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DECLARE_CONSOLE_COMMAND(temps, command_temps,
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NULL,
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"Print temp sensors",
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NULL);
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