diff options
Diffstat (limited to 'driver/temp_sensor/g78x.c')
| -rw-r--r-- | driver/temp_sensor/g78x.c | 238 |
1 files changed, 0 insertions, 238 deletions
diff --git a/driver/temp_sensor/g78x.c b/driver/temp_sensor/g78x.c deleted file mode 100644 index aef13d3d68..0000000000 --- a/driver/temp_sensor/g78x.c +++ /dev/null @@ -1,238 +0,0 @@ -/* Copyright 2016 The Chromium OS Authors. All rights reserved. - * Use of this source code is governed by a BSD-style license that can be - * found in the LICENSE file. - */ - -/* G781/G782 temperature sensor module for Chrome EC */ - -#include "common.h" -#include "console.h" -#include "g78x.h" -#include "gpio.h" -#include "i2c.h" -#include "hooks.h" -#include "util.h" - -static int temp_val_local; -static int temp_val_remote1; -#ifdef CONFIG_TEMP_SENSOR_G782 -static int temp_val_remote2; -#endif - -/** - * Determine whether the sensor is powered. - * - * @return non-zero the g781/g782 sensor is powered. - */ -static int has_power(void) -{ -#ifdef CONFIG_TEMP_SENSOR_POWER_GPIO - return gpio_get_level(CONFIG_TEMP_SENSOR_POWER_GPIO); -#else - return 1; -#endif -} - -static int raw_read8(const int offset, int *data_ptr) -{ - return i2c_read8(I2C_PORT_THERMAL, G78X_I2C_ADDR_FLAGS, - offset, data_ptr); -} - -#ifdef CONFIG_CMD_TEMP_SENSOR -static int raw_write8(const int offset, int data) -{ - return i2c_write8(I2C_PORT_THERMAL, G78X_I2C_ADDR_FLAGS, - offset, data); -} -#endif - -static int get_temp(const int offset, int *temp_ptr) -{ - int rv; - int temp_raw = 0; - - rv = raw_read8(offset, &temp_raw); - if (rv < 0) - return rv; - - *temp_ptr = (int)(int8_t)temp_raw; - return EC_SUCCESS; -} - -#ifdef CONFIG_CMD_TEMP_SENSOR -static int set_temp(const int offset, int temp) -{ - if (temp < -127 || temp > 127) - return EC_ERROR_INVAL; - - return raw_write8(offset, (uint8_t)temp); -} -#endif - -int g78x_get_val(int idx, int *temp_ptr) -{ - if (!has_power()) - return EC_ERROR_NOT_POWERED; - - switch (idx) { - case G78X_IDX_INTERNAL: - *temp_ptr = temp_val_local; - break; - case G78X_IDX_EXTERNAL1: - *temp_ptr = temp_val_remote1; - break; -#ifdef CONFIG_TEMP_SENSOR_G782 - case G78X_IDX_EXTERNAL2: - *temp_ptr = temp_val_remote2; - break; -#endif - default: - return EC_ERROR_UNKNOWN; - } - - return EC_SUCCESS; -} - -static void temp_sensor_poll(void) -{ - if (!has_power()) - return; - - get_temp(G78X_TEMP_LOCAL, &temp_val_local); - temp_val_local = C_TO_K(temp_val_local); - - get_temp(G78X_TEMP_REMOTE1, &temp_val_remote1); - temp_val_remote1 = C_TO_K(temp_val_remote1); - -#ifdef CONFIG_TEMP_SENSOR_G782 - get_temp(G78X_TEMP_REMOTE2, &temp_val_remote2); - temp_val_remote2 = C_TO_K(temp_val_remote2); -#endif -} -DECLARE_HOOK(HOOK_SECOND, temp_sensor_poll, HOOK_PRIO_TEMP_SENSOR); - -#ifdef CONFIG_CMD_TEMP_SENSOR -static void print_temps(const char *name, - const int temp_reg, - const int therm_limit_reg, - const int high_limit_reg, - const int low_limit_reg) -{ - int value; - - ccprintf("%s:\n", name); - - if (get_temp(temp_reg, &value) == EC_SUCCESS) - ccprintf(" Temp: %3dC\n", value); - - if (get_temp(therm_limit_reg, &value) == EC_SUCCESS) - ccprintf(" Therm Trip: %3dC\n", value); - - if (get_temp(high_limit_reg, &value) == EC_SUCCESS) - ccprintf(" High Alarm: %3dC\n", value); - - if (get_temp(low_limit_reg, &value) == EC_SUCCESS) - ccprintf(" Low Alarm: %3dC\n", value); -} - -static int print_status(void) -{ - int value; - - if (!has_power()) { - ccprintf("ERROR: Temp sensor not powered.\n"); - return EC_ERROR_NOT_POWERED; - } - - print_temps("Local", G78X_TEMP_LOCAL, - G78X_LOCAL_TEMP_THERM_LIMIT, - G78X_LOCAL_TEMP_HIGH_LIMIT_R, - G78X_LOCAL_TEMP_LOW_LIMIT_R); - - print_temps("Remote1", G78X_TEMP_REMOTE1, - G78X_REMOTE1_TEMP_THERM_LIMIT, - G78X_REMOTE1_TEMP_HIGH_LIMIT_R, - G78X_REMOTE1_TEMP_LOW_LIMIT_R); - -#ifdef CONFIG_TEMP_SENSOR_G782 - print_temps("Remote2", G78X_TEMP_REMOTE1, - G78X_REMOTE2_TEMP_THERM_LIMIT, - G78X_REMOTE2_TEMP_HIGH_LIMIT_R, - G78X_REMOTE2_TEMP_LOW_LIMIT_R); -#endif - - ccprintf("\n"); - - if (raw_read8(G78X_STATUS, &value) == EC_SUCCESS) - ccprintf("STATUS: %pb\n", BINARY_VALUE(value, 8)); - -#ifdef CONFIG_TEMP_SENSOR_G782 - if (raw_read8(G78X_STATUS1, &value) == EC_SUCCESS) - ccprintf("STATUS1: %pb\n", BINARY_VALUE(value, 8)); -#endif - - if (raw_read8(G78X_CONFIGURATION_R, &value) == EC_SUCCESS) - ccprintf("CONFIG: %pb\n", BINARY_VALUE(value, 8)); - - return EC_SUCCESS; -} - -static int command_g78x(int argc, char **argv) -{ - char *command; - char *e; - int data; - int offset; - int rv; - - if (!has_power()) { - ccprintf("ERROR: Temp sensor not powered.\n"); - return EC_ERROR_NOT_POWERED; - } - - /* If no args just print status */ - if (argc == 1) - return print_status(); - - if (argc < 3) - return EC_ERROR_PARAM_COUNT; - - command = argv[1]; - offset = strtoi(argv[2], &e, 0); - if (*e || offset < 0 || offset > 255) - return EC_ERROR_PARAM2; - - if (!strcasecmp(command, "getbyte")) { - rv = raw_read8(offset, &data); - if (rv < 0) - return rv; - ccprintf("Byte at offset 0x%02x is %pb\n", - offset, BINARY_VALUE(data, 8)); - return rv; - } - - /* Remaining commands are of the form "g78x set-command offset data" */ - if (argc != 4) - return EC_ERROR_PARAM_COUNT; - - data = strtoi(argv[3], &e, 0); - if (*e) - return EC_ERROR_PARAM3; - - if (!strcasecmp(command, "settemp")) { - ccprintf("Setting 0x%02x to %dC\n", offset, data); - rv = set_temp(offset, data); - } else if (!strcasecmp(command, "setbyte")) { - ccprintf("Setting 0x%02x to 0x%02x\n", offset, data); - rv = raw_write8(offset, data); - } else - return EC_ERROR_PARAM1; - - return rv; -} -DECLARE_CONSOLE_COMMAND(g78x, command_g78x, - "[settemp|setbyte <offset> <value>] or [getbyte <offset>]. " - "Temps in Celsius.", - "Print g781/g782 temp sensor status or set parameters."); -#endif |