drivers/hwmon/nct6775.h

Source file repositories/reference/linux-study-clean/drivers/hwmon/nct6775.h

File Facts

System
Linux kernel
Corpus path
drivers/hwmon/nct6775.h
Extension
.h
Size
7402 bytes
Lines
272
Domain
Driver Families
Bucket
drivers/hwmon
Inferred role
Driver Families: implementation source
Status
source implementation candidate

Why This File Exists

Repeatable hardware-adapter layer. Deep compatibility for every driver is out of scope; this atlas records patterns, probe lifecycles, bus glue, IRQ/DMA usage, and links back to core abstractions.

Dependency Surface

Detected Declarations

Annotated Snippet

struct nct6775_data {
	int addr;	/* IO base of hw monitor block */
	int sioreg;	/* SIO register address */
	enum kinds kind;
	const char *name;

	const struct attribute_group *groups[7];
	u8 num_groups;

	u16 reg_temp[5][NUM_TEMP]; /* 0=temp, 1=temp_over, 2=temp_hyst,
				    * 3=temp_crit, 4=temp_lcrit
				    */
	u8 temp_src[NUM_TEMP];
	u16 reg_temp_config[NUM_TEMP];
	const char * const *temp_label;
	u32 temp_mask;
	u32 virt_temp_mask;

	u16 REG_CONFIG;
	u16 REG_VBAT;
	u16 REG_DIODE;
	u8 DIODE_MASK;

	const s8 *ALARM_BITS;
	const s8 *BEEP_BITS;

	const u16 *REG_VIN;
	const u16 *REG_IN_MINMAX[2];

	const u16 *REG_TARGET;
	const u16 *REG_FAN;
	const u16 *REG_FAN_MODE;
	const u16 *REG_FAN_MIN;
	const u16 *REG_FAN_PULSES;
	const u16 *FAN_PULSE_SHIFT;
	const u16 *REG_FAN_TIME[3];

	const u16 *REG_TOLERANCE_H;

	const u8 *REG_PWM_MODE;
	const u8 *PWM_MODE_MASK;

	const u16 *REG_PWM[7];	/* [0]=pwm, [1]=pwm_start, [2]=pwm_floor,
				 * [3]=pwm_max, [4]=pwm_step,
				 * [5]=weight_duty_step, [6]=weight_duty_base
				 */
	const u16 *REG_PWM_READ;

	const u16 *REG_CRITICAL_PWM_ENABLE;
	u8 CRITICAL_PWM_ENABLE_MASK;
	const u16 *REG_CRITICAL_PWM;

	const u16 *REG_AUTO_TEMP;
	const u16 *REG_AUTO_PWM;

	const u16 *REG_CRITICAL_TEMP;
	const u16 *REG_CRITICAL_TEMP_TOLERANCE;

	const u16 *REG_TEMP_SOURCE;	/* temp register sources */
	const u16 *REG_TEMP_SEL;
	const u16 *REG_WEIGHT_TEMP_SEL;
	const u16 *REG_WEIGHT_TEMP[3];	/* 0=base, 1=tolerance, 2=step */

	const u16 *REG_TEMP_OFFSET;

	const u16 *REG_ALARM;
	const u16 *REG_BEEP;

	const u16 *REG_TSI_TEMP;

	unsigned int (*fan_from_reg)(u16 reg, unsigned int divreg);
	unsigned int (*fan_from_reg_min)(u16 reg, unsigned int divreg);

	struct mutex update_lock;
	bool valid;		/* true if following fields are valid */
	unsigned long last_updated;	/* In jiffies */

	/* Register values */
	u8 bank;		/* current register bank */
	u8 in_num;		/* number of in inputs we have */
	u8 in[NUM_IN][3];	/* [0]=in, [1]=in_max, [2]=in_min */
	const u16 *scale_in;	/* internal scaling factors */
	unsigned int rpm[NUM_FAN];
	u16 fan_min[NUM_FAN];
	u8 fan_pulses[NUM_FAN];
	u8 fan_div[NUM_FAN];
	u8 has_pwm;
	u8 has_fan;		/* some fan inputs can be disabled */
	u8 has_fan_min;		/* some fans don't have min register */
	bool has_fan_div;

Annotation

Implementation Notes