| /* 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 |
| #define CAL_DEGC_PT1 30 |
| #define CAL_DEGC_PT2 120 |
| #define SLOPE_FACTOR 1000 |
| #define SLOPE_DEFAULT 3200 |
| #define THRESHOLD_MAX_ADC_CODE 0x3ff |
| #define THRESHOLD_MIN_ADC_CODE 0x0 |
| |
| #include <linux/interrupt.h> |
| #include <linux/thermal.h> |
| #include <linux/regmap.h> |
| #include <linux/slab.h> |
| |
| struct tsens_priv; |
| |
| enum tsens_ver { |
| VER_0_1 = 0, |
| VER_1_X, |
| VER_2_X, |
| }; |
| |
| enum tsens_irq_type { |
| LOWER, |
| UPPER, |
| }; |
| |
| /** |
| * 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 |
| * @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; |
| unsigned 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_sensor *s, 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_sensor *s, 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) |
| |
| #define REG_FIELD_SPLIT_BITS_0_15(_name, _offset) \ |
| [_name##_##0] = REG_FIELD(_offset, 0, 0), \ |
| [_name##_##1] = REG_FIELD(_offset, 1, 1), \ |
| [_name##_##2] = REG_FIELD(_offset, 2, 2), \ |
| [_name##_##3] = REG_FIELD(_offset, 3, 3), \ |
| [_name##_##4] = REG_FIELD(_offset, 4, 4), \ |
| [_name##_##5] = REG_FIELD(_offset, 5, 5), \ |
| [_name##_##6] = REG_FIELD(_offset, 6, 6), \ |
| [_name##_##7] = REG_FIELD(_offset, 7, 7), \ |
| [_name##_##8] = REG_FIELD(_offset, 8, 8), \ |
| [_name##_##9] = REG_FIELD(_offset, 9, 9), \ |
| [_name##_##10] = REG_FIELD(_offset, 10, 10), \ |
| [_name##_##11] = REG_FIELD(_offset, 11, 11), \ |
| [_name##_##12] = REG_FIELD(_offset, 12, 12), \ |
| [_name##_##13] = REG_FIELD(_offset, 13, 13), \ |
| [_name##_##14] = REG_FIELD(_offset, 14, 14), \ |
| [_name##_##15] = REG_FIELD(_offset, 15, 15) |
| |
| #define REG_FIELD_SPLIT_BITS_16_31(_name, _offset) \ |
| [_name##_##0] = REG_FIELD(_offset, 16, 16), \ |
| [_name##_##1] = REG_FIELD(_offset, 17, 17), \ |
| [_name##_##2] = REG_FIELD(_offset, 18, 18), \ |
| [_name##_##3] = REG_FIELD(_offset, 19, 19), \ |
| [_name##_##4] = REG_FIELD(_offset, 20, 20), \ |
| [_name##_##5] = REG_FIELD(_offset, 21, 21), \ |
| [_name##_##6] = REG_FIELD(_offset, 22, 22), \ |
| [_name##_##7] = REG_FIELD(_offset, 23, 23), \ |
| [_name##_##8] = REG_FIELD(_offset, 24, 24), \ |
| [_name##_##9] = REG_FIELD(_offset, 25, 25), \ |
| [_name##_##10] = REG_FIELD(_offset, 26, 26), \ |
| [_name##_##11] = REG_FIELD(_offset, 27, 27), \ |
| [_name##_##12] = REG_FIELD(_offset, 28, 28), \ |
| [_name##_##13] = REG_FIELD(_offset, 29, 29), \ |
| [_name##_##14] = REG_FIELD(_offset, 30, 30), \ |
| [_name##_##15] = REG_FIELD(_offset, 31, 31) |
| |
| /* |
| * reg_field IDs to use as an index into an array |
| * If you change the order of the entries, check the devm_regmap_field_alloc() |
| * calls in init_common() |
| */ |
| enum regfield_ids { |
| /* ----- SROT ------ */ |
| /* HW_VER */ |
| VER_MAJOR, |
| VER_MINOR, |
| VER_STEP, |
| /* CTRL_OFFSET */ |
| TSENS_EN, |
| TSENS_SW_RST, |
| SENSOR_EN, |
| CODE_OR_TEMP, |
| |
| /* ----- TM ------ */ |
| /* TRDY */ |
| TRDY, |
| /* INTERRUPT ENABLE */ |
| INT_EN, /* v2+ has separate enables for crit, upper and lower irq */ |
| /* STATUS */ |
| LAST_TEMP_0, /* 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, /* 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, |
| 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, |
| LOW_INT_STATUS_0, /* LOWER interrupt status */ |
| LOW_INT_STATUS_1, |
| LOW_INT_STATUS_2, |
| LOW_INT_STATUS_3, |
| LOW_INT_STATUS_4, |
| LOW_INT_STATUS_5, |
| LOW_INT_STATUS_6, |
| LOW_INT_STATUS_7, |
| LOW_INT_STATUS_8, |
| LOW_INT_STATUS_9, |
| LOW_INT_STATUS_10, |
| LOW_INT_STATUS_11, |
| LOW_INT_STATUS_12, |
| LOW_INT_STATUS_13, |
| LOW_INT_STATUS_14, |
| LOW_INT_STATUS_15, |
| LOW_INT_CLEAR_0, /* LOWER interrupt clear */ |
| LOW_INT_CLEAR_1, |
| LOW_INT_CLEAR_2, |
| LOW_INT_CLEAR_3, |
| LOW_INT_CLEAR_4, |
| LOW_INT_CLEAR_5, |
| LOW_INT_CLEAR_6, |
| LOW_INT_CLEAR_7, |
| LOW_INT_CLEAR_8, |
| LOW_INT_CLEAR_9, |
| LOW_INT_CLEAR_10, |
| LOW_INT_CLEAR_11, |
| LOW_INT_CLEAR_12, |
| LOW_INT_CLEAR_13, |
| LOW_INT_CLEAR_14, |
| LOW_INT_CLEAR_15, |
| LOW_INT_MASK_0, /* LOWER interrupt mask */ |
| LOW_INT_MASK_1, |
| LOW_INT_MASK_2, |
| LOW_INT_MASK_3, |
| LOW_INT_MASK_4, |
| LOW_INT_MASK_5, |
| LOW_INT_MASK_6, |
| LOW_INT_MASK_7, |
| LOW_INT_MASK_8, |
| LOW_INT_MASK_9, |
| LOW_INT_MASK_10, |
| LOW_INT_MASK_11, |
| LOW_INT_MASK_12, |
| LOW_INT_MASK_13, |
| LOW_INT_MASK_14, |
| LOW_INT_MASK_15, |
| LOW_THRESH_0, /* LOWER threshold values */ |
| LOW_THRESH_1, |
| LOW_THRESH_2, |
| LOW_THRESH_3, |
| LOW_THRESH_4, |
| LOW_THRESH_5, |
| LOW_THRESH_6, |
| LOW_THRESH_7, |
| LOW_THRESH_8, |
| LOW_THRESH_9, |
| LOW_THRESH_10, |
| LOW_THRESH_11, |
| LOW_THRESH_12, |
| LOW_THRESH_13, |
| LOW_THRESH_14, |
| LOW_THRESH_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, |
| UP_INT_STATUS_0, /* UPPER interrupt status */ |
| UP_INT_STATUS_1, |
| UP_INT_STATUS_2, |
| UP_INT_STATUS_3, |
| UP_INT_STATUS_4, |
| UP_INT_STATUS_5, |
| UP_INT_STATUS_6, |
| UP_INT_STATUS_7, |
| UP_INT_STATUS_8, |
| UP_INT_STATUS_9, |
| UP_INT_STATUS_10, |
| UP_INT_STATUS_11, |
| UP_INT_STATUS_12, |
| UP_INT_STATUS_13, |
| UP_INT_STATUS_14, |
| UP_INT_STATUS_15, |
| UP_INT_CLEAR_0, /* UPPER interrupt clear */ |
| UP_INT_CLEAR_1, |
| UP_INT_CLEAR_2, |
| UP_INT_CLEAR_3, |
| UP_INT_CLEAR_4, |
| UP_INT_CLEAR_5, |
| UP_INT_CLEAR_6, |
| UP_INT_CLEAR_7, |
| UP_INT_CLEAR_8, |
| UP_INT_CLEAR_9, |
| UP_INT_CLEAR_10, |
| UP_INT_CLEAR_11, |
| UP_INT_CLEAR_12, |
| UP_INT_CLEAR_13, |
| UP_INT_CLEAR_14, |
| UP_INT_CLEAR_15, |
| UP_INT_MASK_0, /* UPPER interrupt mask */ |
| UP_INT_MASK_1, |
| UP_INT_MASK_2, |
| UP_INT_MASK_3, |
| UP_INT_MASK_4, |
| UP_INT_MASK_5, |
| UP_INT_MASK_6, |
| UP_INT_MASK_7, |
| UP_INT_MASK_8, |
| UP_INT_MASK_9, |
| UP_INT_MASK_10, |
| UP_INT_MASK_11, |
| UP_INT_MASK_12, |
| UP_INT_MASK_13, |
| UP_INT_MASK_14, |
| UP_INT_MASK_15, |
| UP_THRESH_0, /* UPPER threshold values */ |
| UP_THRESH_1, |
| UP_THRESH_2, |
| UP_THRESH_3, |
| UP_THRESH_4, |
| UP_THRESH_5, |
| UP_THRESH_6, |
| UP_THRESH_7, |
| UP_THRESH_8, |
| UP_THRESH_9, |
| UP_THRESH_10, |
| UP_THRESH_11, |
| UP_THRESH_12, |
| UP_THRESH_13, |
| UP_THRESH_14, |
| UP_THRESH_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, |
| 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, |
| |
| /* 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? |
| * @max_sensors: maximum sensors supported by this version of the IP |
| */ |
| struct tsens_features { |
| unsigned int ver_major; |
| unsigned int crit_int:1; |
| unsigned int adc:1; |
| unsigned int srot_split:1; |
| unsigned int max_sensors; |
| }; |
| |
| /** |
| * 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 |
| * @debug_root: pointer to debugfs dentry for all tsens |
| * @debug: pointer to debugfs dentry for tsens controller |
| * @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; |
| |
| /* lock for upper/lower threshold interrupts */ |
| spinlock_t ul_lock; |
| |
| 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 dentry *debug_root; |
| struct dentry *debug; |
| |
| 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_tsens_valid(struct tsens_sensor *s, int *temp); |
| int get_temp_common(struct tsens_sensor *s, int *temp); |
| int tsens_enable_irq(struct tsens_priv *priv); |
| void tsens_disable_irq(struct tsens_priv *priv); |
| int tsens_set_trips(void *_sensor, int low, int high); |
| irqreturn_t tsens_irq_thread(int irq, void *data); |
| |
| /* 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 v1 targets */ |
| extern const struct tsens_plat_data data_tsens_v1, data_8976; |
| |
| /* TSENS v2 targets */ |
| extern const struct tsens_plat_data data_8996, data_tsens_v2; |
| |
| #endif /* __QCOM_TSENS_H__ */ |
