drivers/i2c/w83795: Add full support for core functions

Add full support for fan control, fan monitoring, and voltage
monitoring.  Fan speeds and functions are configurable via
each mainboard's devicetree.cb file.

NOTE: This patch effectively rewrites large portions of
the original driver.  You may need to re-verify correct
operation on your hardware if you were using the old
driver code.

Change-Id: I3e246af0e398d65ee43ea708060885c67fd7d202
Signed-off-by: Timothy Pearson <tpearson@raptorengineeringinc.com>
Reviewed-on: http://review.coreboot.org/11936
Reviewed-by: Felix Held <felix-coreboot@felixheld.de>
Tested-by: build bot (Jenkins)
Reviewed-by: Peter Stuge <peter@stuge.se>

1 files changed, 142 insertions, 0 deletions

diff --git a/src/drivers/i2c/w83795/chip.h b/src/drivers/i2c/w83795/chip.h
new file mode 100644
index 0000000000..c8a42ea971
--- /dev/null
+++ b/src/drivers/i2c/w83795/chip.h
@@ -0,0 +1,142 @@
+/*
+ * This file is part of the coreboot project.
+ *
+ * Copyright (C) 2015 Raptor Engineering
+ *
+ * This program is free software; you can redistribute it and/or modify
+ * it under the terms of the GNU General Public License as published by
+ * the Free Software Foundation; version 2 of the License.
+ *
+ * This program is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+ * GNU General Public License for more details.
+ *
+ * You should have received a copy of the GNU General Public License
+ * along with this program; if not, write to the Free Software
+ * Foundation, Inc.
+ */
+
+struct drivers_i2c_w83795_config {
+	uint8_t fanin_ctl1;
+	uint8_t fanin_ctl2;
+
+	uint8_t temp_ctl1;
+	uint8_t temp_ctl2;
+	uint8_t temp_dtse;
+
+	uint8_t volt_ctl1;
+	uint8_t volt_ctl2;
+
+	uint8_t temp1_fan_select;
+	uint8_t temp2_fan_select;
+	uint8_t temp3_fan_select;
+	uint8_t temp4_fan_select;
+	uint8_t temp5_fan_select;
+	uint8_t temp6_fan_select;
+
+	uint8_t temp1_source_select;
+	uint8_t temp2_source_select;
+	uint8_t temp3_source_select;
+	uint8_t temp4_source_select;
+	uint8_t temp5_source_select;
+	uint8_t temp6_source_select;
+
+	uint32_t vcore1_high_limit_mv;		/* mV */
+	uint32_t vcore1_low_limit_mv;		/* mV */
+	uint32_t vcore2_high_limit_mv;		/* mV */
+	uint32_t vcore2_low_limit_mv;		/* mV */
+	uint32_t vtt_high_limit_mv;		/* mV */
+	uint32_t vtt_low_limit_mv;		/* mV */
+	uint32_t vsen3_high_limit_mv;		/* mV */
+	uint32_t vsen3_low_limit_mv;		/* mV */
+	uint32_t vsen4_high_limit_mv;		/* mV */
+	uint32_t vsen4_low_limit_mv;		/* mV */
+	uint32_t vsen5_high_limit_mv;		/* mV */
+	uint32_t vsen5_low_limit_mv;		/* mV */
+	uint32_t vsen6_high_limit_mv;		/* mV */
+	uint32_t vsen6_low_limit_mv;		/* mV */
+	uint32_t vsen7_high_limit_mv;		/* mV */
+	uint32_t vsen7_low_limit_mv;		/* mV */
+	uint32_t vsen8_high_limit_mv;		/* mV */
+	uint32_t vsen8_low_limit_mv;		/* mV */
+	uint32_t vsen9_high_limit_mv;		/* mV */
+	uint32_t vsen9_low_limit_mv;		/* mV */
+	uint32_t vsen10_high_limit_mv;		/* mV */
+	uint32_t vsen10_low_limit_mv;		/* mV */
+	uint32_t vsen11_high_limit_mv;		/* mV */
+	uint32_t vsen11_low_limit_mv;		/* mV */
+	uint32_t vsen12_high_limit_mv;		/* mV */
+	uint32_t vsen12_low_limit_mv;		/* mV */
+	uint32_t vsen13_high_limit_mv;		/* mV */
+	uint32_t vsen13_low_limit_mv;		/* mV */
+	uint32_t vdd_high_limit_mv;		/* mV */
+	uint32_t vdd_low_limit_mv;		/* mV */
+	uint32_t vsb_high_limit_mv;		/* mV */
+	uint32_t vsb_low_limit_mv;		/* mV */
+	uint32_t vbat_high_limit_mv;		/* mV */
+	uint32_t vbat_low_limit_mv;		/* mV */
+
+	int8_t tr1_critical_temperature;	/* °C */
+	int8_t tr1_critical_hysteresis;		/* °C */
+	int8_t tr1_warning_temperature;		/* °C */
+	int8_t tr1_warning_hysteresis;		/* °C */
+	int8_t tr2_critical_temperature;	/* °C */
+	int8_t tr2_critical_hysteresis;		/* °C */
+	int8_t tr2_warning_temperature;		/* °C */
+	int8_t tr2_warning_hysteresis;		/* °C */
+	int8_t tr3_critical_temperature;	/* °C */
+	int8_t tr3_critical_hysteresis;		/* °C */
+	int8_t tr3_warning_temperature;		/* °C */
+	int8_t tr3_warning_hysteresis;		/* °C */
+	int8_t tr4_critical_temperature;	/* °C */
+	int8_t tr4_critical_hysteresis;		/* °C */
+	int8_t tr4_warning_temperature;		/* °C */
+	int8_t tr4_warning_hysteresis;		/* °C */
+	int8_t tr5_critical_temperature;	/* °C */
+	int8_t tr5_critical_hysteresis;		/* °C */
+	int8_t tr5_warning_temperature;		/* °C */
+	int8_t tr5_warning_hysteresis;		/* °C */
+	int8_t tr6_critical_temperature;	/* °C */
+	int8_t tr6_critical_hysteresis;		/* °C */
+	int8_t tr6_warning_temperature;		/* °C */
+	int8_t tr6_warning_hysteresis;		/* °C */
+	int8_t dts_critical_temperature;	/* °C */
+	int8_t dts_critical_hysteresis;		/* °C */
+	int8_t dts_warning_temperature;		/* °C */
+	int8_t dts_warning_hysteresis;		/* °C */
+
+	int8_t temp1_critical_temperature;	/* °C */
+	int8_t temp2_critical_temperature;	/* °C */
+	int8_t temp3_critical_temperature;	/* °C */
+	int8_t temp4_critical_temperature;	/* °C */
+	int8_t temp5_critical_temperature;	/* °C */
+	int8_t temp6_critical_temperature;	/* °C */
+
+	int8_t temp1_target_temperature;	/* °C */
+	int8_t temp2_target_temperature;	/* °C */
+	int8_t temp3_target_temperature;	/* °C */
+	int8_t temp4_target_temperature;	/* °C */
+	int8_t temp5_target_temperature;	/* °C */
+	int8_t temp6_target_temperature;	/* °C */
+
+	uint8_t fan1_nonstop;			/* % of full speed (0-100) */
+	uint8_t fan2_nonstop;			/* % of full speed (0-100) */
+	uint8_t fan3_nonstop;			/* % of full speed (0-100) */
+	uint8_t fan4_nonstop;			/* % of full speed (0-100) */
+	uint8_t fan5_nonstop;			/* % of full speed (0-100) */
+	uint8_t fan6_nonstop;			/* % of full speed (0-100) */
+	uint8_t fan7_nonstop;			/* % of full speed (0-100) */
+	uint8_t fan8_nonstop;			/* % of full speed (0-100) */
+
+	uint8_t default_speed;			/* % of full speed (0-100) */
+
+	uint8_t fan1_duty;			/* % of full speed (0-100) */
+	uint8_t fan2_duty;			/* % of full speed (0-100) */
+	uint8_t fan3_duty;			/* % of full speed (0-100) */
+	uint8_t fan4_duty;			/* % of full speed (0-100) */
+	uint8_t fan5_duty;			/* % of full speed (0-100) */
+	uint8_t fan6_duty;			/* % of full speed (0-100) */
+	uint8_t fan7_duty;			/* % of full speed (0-100) */
+	uint8_t fan8_duty;			/* % of full speed (0-100) */
+};