drivers/thermal/qcom/tsens-v0_1.c

Source file repositories/reference/linux-study-clean/drivers/thermal/qcom/tsens-v0_1.c

File Facts

System
Linux kernel
Corpus path
drivers/thermal/qcom/tsens-v0_1.c
Extension
.c
Size
9652 bytes
Lines
409
Domain
Driver Families
Bucket
drivers/thermal
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

static int __init init_8939(struct tsens_priv *priv) {
	priv->sensor[0].slope = 2911;
	priv->sensor[1].slope = 2789;
	priv->sensor[2].slope = 2906;
	priv->sensor[3].slope = 2763;
	priv->sensor[4].slope = 2922;
	priv->sensor[5].slope = 2867;
	priv->sensor[6].slope = 2833;
	priv->sensor[7].slope = 2838;
	priv->sensor[8].slope = 2840;
	/* priv->sensor[9].slope = 2852; */

	return init_common(priv);
}

static int __init init_9607(struct tsens_priv *priv)
{
	int i;

	for (i = 0; i < priv->num_sensors; ++i)
		priv->sensor[i].slope = 3000;

	priv->sensor[0].p1_calib_offset = 1;
	priv->sensor[0].p2_calib_offset = 1;
	priv->sensor[1].p1_calib_offset = -4;
	priv->sensor[1].p2_calib_offset = -2;
	priv->sensor[2].p1_calib_offset = 4;
	priv->sensor[2].p2_calib_offset = 8;
	priv->sensor[3].p1_calib_offset = -3;
	priv->sensor[3].p2_calib_offset = -5;
	priv->sensor[4].p1_calib_offset = -4;
	priv->sensor[4].p2_calib_offset = -4;

	return init_common(priv);
}

/* v0.1: 8226, 8909, 8916, 8939, 8974, 9607 */

static struct tsens_features tsens_v0_1_feat = {
	.ver_major	= VER_0_1,
	.crit_int	= 0,
	.combo_int	= 0,
	.adc		= 1,
	.srot_split	= 1,
	.max_sensors	= 11,
	.trip_min_temp	= -40000,
	.trip_max_temp	= 120000,
};

static const struct reg_field tsens_v0_1_regfields[MAX_REGFIELDS] = {
	/* ----- SROT ------ */
	/* No VERSION information */

	/* CTRL_OFFSET */
	[TSENS_EN]     = REG_FIELD(SROT_CTRL_OFF, 0,  0),
	[TSENS_SW_RST] = REG_FIELD(SROT_CTRL_OFF, 1,  1),

	/* ----- TM ------ */
	/* INTERRUPT ENABLE */
	[INT_EN] = REG_FIELD(TM_INT_EN_OFF, 0, 0),

	/* UPPER/LOWER TEMPERATURE THRESHOLDS */
	REG_FIELD_FOR_EACH_SENSOR11(LOW_THRESH,    TM_Sn_UPPER_LOWER_STATUS_CTRL_OFF,  0,  9),
	REG_FIELD_FOR_EACH_SENSOR11(UP_THRESH,     TM_Sn_UPPER_LOWER_STATUS_CTRL_OFF, 10, 19),

	/* UPPER/LOWER INTERRUPTS [CLEAR/STATUS] */
	REG_FIELD_FOR_EACH_SENSOR11(LOW_INT_CLEAR, TM_Sn_UPPER_LOWER_STATUS_CTRL_OFF, 20, 20),
	REG_FIELD_FOR_EACH_SENSOR11(UP_INT_CLEAR,  TM_Sn_UPPER_LOWER_STATUS_CTRL_OFF, 21, 21),

	/* NO CRITICAL INTERRUPT SUPPORT on v0.1 */

	/* Sn_STATUS */
	REG_FIELD_FOR_EACH_SENSOR11(LAST_TEMP,    TM_Sn_STATUS_OFF,  0,  9),
	/* No VALID field on v0.1 */
	/* xxx_STATUS bits: 1 == threshold violated */
	REG_FIELD_FOR_EACH_SENSOR11(MIN_STATUS,   TM_Sn_STATUS_OFF, 10, 10),
	REG_FIELD_FOR_EACH_SENSOR11(LOWER_STATUS, TM_Sn_STATUS_OFF, 11, 11),
	REG_FIELD_FOR_EACH_SENSOR11(UPPER_STATUS, TM_Sn_STATUS_OFF, 12, 12),
	/* No CRITICAL field on v0.1 */
	REG_FIELD_FOR_EACH_SENSOR11(MAX_STATUS,   TM_Sn_STATUS_OFF, 13, 13),

	/* TRDY: 1=ready, 0=in progress */
	[TRDY] = REG_FIELD(TM_TRDY_OFF, 0, 0),
};

static const struct tsens_ops ops_8226 = {
	.init		= init_8226,
	.calibrate	= tsens_calibrate_common,
	.get_temp	= get_temp_common,
};

Annotation

Implementation Notes