/* SPDX-License-Identifier: GPL-2.0 */ /* * Copyright (c) 2015, The Linux Foundation. All rights reserved. */ #ifndef __QCOM_TSENS_H__ #define __QCOM_TSENS_H__ #define ONE_PT_CALIB 0x1 #define ONE_PT_CALIB2 0x2 #define TWO_PT_CALIB 0x3 #include #include struct tsens_priv; enum tsens_ver { VER_0_1 = 0, VER_1_X, VER_2_X, }; /** * struct tsens_sensor - data for each sensor connected to the tsens device * @priv: tsens device instance that this sensor is connected to * @tzd: pointer to the thermal zone that this sensor is in * @offset: offset of temperature adjustment curve * @id: Sensor ID * @hw_id: HW ID can be used in case of platform-specific IDs * @slope: slope of temperature adjustment curve * @status: 8960-specific variable to track 8960 and 8660 status register offset */ struct tsens_sensor { struct tsens_priv *priv; struct thermal_zone_device *tzd; int offset; int id; int hw_id; int slope; u32 status; }; /** * struct tsens_ops - operations as supported by the tsens device * @init: Function to initialize the tsens device * @calibrate: Function to calibrate the tsens device * @get_temp: Function which returns the temp in millidegC * @enable: Function to enable (clocks/power) tsens device * @disable: Function to disable the tsens device * @suspend: Function to suspend the tsens device * @resume: Function to resume the tsens device * @get_trend: Function to get the thermal/temp trend */ struct tsens_ops { /* mandatory callbacks */ int (*init)(struct tsens_priv *priv); int (*calibrate)(struct tsens_priv *priv); int (*get_temp)(struct tsens_priv *priv, int i, int *temp); /* optional callbacks */ int (*enable)(struct tsens_priv *priv, int i); void (*disable)(struct tsens_priv *priv); int (*suspend)(struct tsens_priv *priv); int (*resume)(struct tsens_priv *priv); int (*get_trend)(struct tsens_priv *priv, int i, enum thermal_trend *trend); }; #define REG_FIELD_FOR_EACH_SENSOR11(_name, _offset, _startbit, _stopbit) \ [_name##_##0] = REG_FIELD(_offset, _startbit, _stopbit), \ [_name##_##1] = REG_FIELD(_offset + 4, _startbit, _stopbit), \ [_name##_##2] = REG_FIELD(_offset + 8, _startbit, _stopbit), \ [_name##_##3] = REG_FIELD(_offset + 12, _startbit, _stopbit), \ [_name##_##4] = REG_FIELD(_offset + 16, _startbit, _stopbit), \ [_name##_##5] = REG_FIELD(_offset + 20, _startbit, _stopbit), \ [_name##_##6] = REG_FIELD(_offset + 24, _startbit, _stopbit), \ [_name##_##7] = REG_FIELD(_offset + 28, _startbit, _stopbit), \ [_name##_##8] = REG_FIELD(_offset + 32, _startbit, _stopbit), \ [_name##_##9] = REG_FIELD(_offset + 36, _startbit, _stopbit), \ [_name##_##10] = REG_FIELD(_offset + 40, _startbit, _stopbit) #define REG_FIELD_FOR_EACH_SENSOR16(_name, _offset, _startbit, _stopbit) \ [_name##_##0] = REG_FIELD(_offset, _startbit, _stopbit), \ [_name##_##1] = REG_FIELD(_offset + 4, _startbit, _stopbit), \ [_name##_##2] = REG_FIELD(_offset + 8, _startbit, _stopbit), \ [_name##_##3] = REG_FIELD(_offset + 12, _startbit, _stopbit), \ [_name##_##4] = REG_FIELD(_offset + 16, _startbit, _stopbit), \ [_name##_##5] = REG_FIELD(_offset + 20, _startbit, _stopbit), \ [_name##_##6] = REG_FIELD(_offset + 24, _startbit, _stopbit), \ [_name##_##7] = REG_FIELD(_offset + 28, _startbit, _stopbit), \ [_name##_##8] = REG_FIELD(_offset + 32, _startbit, _stopbit), \ [_name##_##9] = REG_FIELD(_offset + 36, _startbit, _stopbit), \ [_name##_##10] = REG_FIELD(_offset + 40, _startbit, _stopbit), \ [_name##_##11] = REG_FIELD(_offset + 44, _startbit, _stopbit), \ [_name##_##12] = REG_FIELD(_offset + 48, _startbit, _stopbit), \ [_name##_##13] = REG_FIELD(_offset + 52, _startbit, _stopbit), \ [_name##_##14] = REG_FIELD(_offset + 56, _startbit, _stopbit), \ [_name##_##15] = REG_FIELD(_offset + 60, _startbit, _stopbit) /* reg_field IDs to use as an index into an array */ enum regfield_ids { /* ----- SROT ------ */ /* HW_VER */ VER_MAJOR = 0, VER_MINOR, VER_STEP, /* CTRL_OFFSET */ TSENS_EN = 3, TSENS_SW_RST, SENSOR_EN, CODE_OR_TEMP, /* ----- TM ------ */ /* STATUS */ LAST_TEMP_0 = 7, /* Last temperature reading */ LAST_TEMP_1, LAST_TEMP_2, LAST_TEMP_3, LAST_TEMP_4, LAST_TEMP_5, LAST_TEMP_6, LAST_TEMP_7, LAST_TEMP_8, LAST_TEMP_9, LAST_TEMP_10, LAST_TEMP_11, LAST_TEMP_12, LAST_TEMP_13, LAST_TEMP_14, LAST_TEMP_15, VALID_0 = 23, /* VALID reading or not */ VALID_1, VALID_2, VALID_3, VALID_4, VALID_5, VALID_6, VALID_7, VALID_8, VALID_9, VALID_10, VALID_11, VALID_12, VALID_13, VALID_14, VALID_15, MIN_STATUS_0, /* MIN threshold violated */ MIN_STATUS_1, MIN_STATUS_2, MIN_STATUS_3, MIN_STATUS_4, MIN_STATUS_5, MIN_STATUS_6, MIN_STATUS_7, MIN_STATUS_8, MIN_STATUS_9, MIN_STATUS_10, MIN_STATUS_11, MIN_STATUS_12, MIN_STATUS_13, MIN_STATUS_14, MIN_STATUS_15, MAX_STATUS_0, /* MAX threshold violated */ MAX_STATUS_1, MAX_STATUS_2, MAX_STATUS_3, MAX_STATUS_4, MAX_STATUS_5, MAX_STATUS_6, MAX_STATUS_7, MAX_STATUS_8, MAX_STATUS_9, MAX_STATUS_10, MAX_STATUS_11, MAX_STATUS_12, MAX_STATUS_13, MAX_STATUS_14, MAX_STATUS_15, LOWER_STATUS_0, /* LOWER threshold violated */ LOWER_STATUS_1, LOWER_STATUS_2, LOWER_STATUS_3, LOWER_STATUS_4, LOWER_STATUS_5, LOWER_STATUS_6, LOWER_STATUS_7, LOWER_STATUS_8, LOWER_STATUS_9, LOWER_STATUS_10, LOWER_STATUS_11, LOWER_STATUS_12, LOWER_STATUS_13, LOWER_STATUS_14, LOWER_STATUS_15, UPPER_STATUS_0, /* UPPER threshold violated */ UPPER_STATUS_1, UPPER_STATUS_2, UPPER_STATUS_3, UPPER_STATUS_4, UPPER_STATUS_5, UPPER_STATUS_6, UPPER_STATUS_7, UPPER_STATUS_8, UPPER_STATUS_9, UPPER_STATUS_10, UPPER_STATUS_11, UPPER_STATUS_12, UPPER_STATUS_13, UPPER_STATUS_14, UPPER_STATUS_15, CRITICAL_STATUS_0, /* CRITICAL threshold violated */ CRITICAL_STATUS_1, CRITICAL_STATUS_2, CRITICAL_STATUS_3, CRITICAL_STATUS_4, CRITICAL_STATUS_5, CRITICAL_STATUS_6, CRITICAL_STATUS_7, CRITICAL_STATUS_8, CRITICAL_STATUS_9, CRITICAL_STATUS_10, CRITICAL_STATUS_11, CRITICAL_STATUS_12, CRITICAL_STATUS_13, CRITICAL_STATUS_14, CRITICAL_STATUS_15, /* TRDY */ TRDY, /* INTERRUPT ENABLE */ INT_EN, /* Pre-V1, V1.x */ LOW_INT_EN, /* V2.x */ UP_INT_EN, /* V2.x */ CRIT_INT_EN, /* V2.x */ /* Keep last */ MAX_REGFIELDS }; /** * struct tsens_features - Features supported by the IP * @ver_major: Major number of IP version * @crit_int: does the IP support critical interrupts? * @adc: do the sensors only output adc code (instead of temperature)? * @srot_split: does the IP neatly splits the register space into SROT and TM, * with SROT only being available to secure boot firmware? */ struct tsens_features { unsigned int ver_major; unsigned int crit_int:1; unsigned int adc:1; unsigned int srot_split:1; }; /** * struct tsens_plat_data - tsens compile-time platform data * @num_sensors: Number of sensors supported by platform * @ops: operations the tsens instance supports * @hw_ids: Subset of sensors ids supported by platform, if not the first n * @feat: features of the IP * @fields: bitfield locations */ struct tsens_plat_data { const u32 num_sensors; const struct tsens_ops *ops; unsigned int *hw_ids; const struct tsens_features *feat; const struct reg_field *fields; }; /** * struct tsens_context - Registers to be saved/restored across a context loss */ struct tsens_context { int threshold; int control; }; /** * struct tsens_priv - private data for each instance of the tsens IP * @dev: pointer to struct device * @num_sensors: number of sensors enabled on this device * @tm_map: pointer to TM register address space * @srot_map: pointer to SROT register address space * @tm_offset: deal with old device trees that don't address TM and SROT * address space separately * @rf: array of regmap_fields used to store value of the field * @ctx: registers to be saved and restored during suspend/resume * @feat: features of the IP * @fields: bitfield locations * @ops: pointer to list of callbacks supported by this device * @sensor: list of sensors attached to this device */ struct tsens_priv { struct device *dev; u32 num_sensors; struct regmap *tm_map; struct regmap *srot_map; u32 tm_offset; struct regmap_field *rf[MAX_REGFIELDS]; struct tsens_context ctx; const struct tsens_features *feat; const struct reg_field *fields; const struct tsens_ops *ops; struct tsens_sensor sensor[0]; }; char *qfprom_read(struct device *dev, const char *cname); void compute_intercept_slope(struct tsens_priv *priv, u32 *pt1, u32 *pt2, u32 mode); int init_common(struct tsens_priv *priv); int get_temp_common(struct tsens_priv *priv, int i, int *temp); bool is_sensor_enabled(struct tsens_priv *priv, u32 hw_id); /* TSENS target */ extern const struct tsens_plat_data data_8960; /* TSENS v0.1 targets */ extern const struct tsens_plat_data data_8916, data_8974; /* TSENS v2 targets */ extern const struct tsens_plat_data data_8996, data_tsens_v2; #endif /* __QCOM_TSENS_H__ */