diff options
Diffstat (limited to 'src/soc/samsung/common/include/soc/tmu.h')
| -rw-r--r-- | src/soc/samsung/common/include/soc/tmu.h | 118 |
1 files changed, 118 insertions, 0 deletions
diff --git a/src/soc/samsung/common/include/soc/tmu.h b/src/soc/samsung/common/include/soc/tmu.h new file mode 100644 index 000000000000..44996f6fdff0 --- /dev/null +++ b/src/soc/samsung/common/include/soc/tmu.h @@ -0,0 +1,118 @@ +/* SPDX-License-Identifier: GPL-2.0-only */ + +/* EXYNOS - Thermal Management Unit */ + +#ifndef SOC_SAMSUNG_COMMON_INCLUDE_SOC_TMU_H +#define SOC_SAMSUNG_COMMON_INCLUDE_SOC_TMU_H + +struct tmu_reg { + unsigned int triminfo; + unsigned int rsvd1; + unsigned int rsvd2; + unsigned int rsvd3; + unsigned int rsvd4; + unsigned int triminfo_control; + unsigned int rsvd5; + unsigned int rsvd6; + unsigned int tmu_control; + unsigned int rsvd7; + unsigned int tmu_status; + unsigned int sampling_internal; + unsigned int counter_value0; + unsigned int counter_value1; + unsigned int rsvd8; + unsigned int rsvd9; + unsigned int current_temp; + unsigned int rsvd10; + unsigned int rsvd11; + unsigned int rsvd12; + unsigned int threshold_temp_rise; + unsigned int threshold_temp_fall; + unsigned int rsvd13; + unsigned int rsvd14; + unsigned int past_temp3_0; + unsigned int past_temp7_4; + unsigned int past_temp11_8; + unsigned int past_temp15_12; + unsigned int inten; + unsigned int intstat; + unsigned int intclear; + unsigned int rsvd15; + unsigned int emul_con; +}; +check_member(tmu_reg, emul_con, 0x80); + +enum tmu_status_t { + TMU_STATUS_INIT = 0, + TMU_STATUS_NORMAL, + TMU_STATUS_WARNING, + TMU_STATUS_TRIPPED, +}; + +/* Temperature threshold values for various thermal events */ +struct temperature_params { + /* minimum value in temperature code range */ + unsigned int min_val; + /* maximum value in temperature code range */ + unsigned int max_val; + /* temperature threshold to start warning */ + unsigned int start_warning; + /* temperature threshold CPU tripping */ + unsigned int start_tripping; + /* temperature threshold for HW tripping */ + unsigned int hardware_tripping; +}; + +/* Pre-defined values and thresholds for calibration of current temperature */ +struct tmu_data { + /* pre-defined temperature thresholds */ + struct temperature_params ts; + /* pre-defined efuse range minimum value */ + unsigned int efuse_min_value; + /* pre-defined efuse value for temperature calibration */ + unsigned int efuse_value; + /* pre-defined efuse range maximum value */ + unsigned int efuse_max_value; + /* current temperature sensing slope */ + unsigned int slope; +}; + +/* TMU device specific details and status */ +struct tmu_info { + /* base Address for the TMU */ + unsigned int tmu_base; + /* mux Address for the TMU */ + int tmu_mux; + /* pre-defined values for calibration and thresholds */ + struct tmu_data data; + /* value required for triminfo_25 calibration */ + unsigned int te1; + /* value required for triminfo_85 calibration */ + unsigned int te2; + /* TMU DC value for threshold calculation */ + int dc_value; + /* enum value indicating status of the TMU */ + int tmu_state; +}; + +extern struct tmu_info *tmu_info; + +/* + * Monitors status of the TMU device and exynos temperature + * + * @info pointer to TMU info struct + * @temp pointer to the current temperature value + * @return enum tmu_status_t value, code indicating event to execute + * and -1 on error + */ +enum tmu_status_t tmu_monitor(struct tmu_info *info, int *temp); + +/* + * Initialize TMU device + * + * @info pointer to TMU info struct + * @return int value, 0 for success + */ +int tmu_init(struct tmu_info *info); + +#endif /* SOC_SAMSUNG_COMMON_INCLUDE_SOC_TMU_H */ |