1 files changed, 0 insertions, 287 deletions
diff --git a/nvkm/subdev/therm/fan.c b/nvkm/subdev/therm/fan.c
deleted file mode 100644
index 3656d6051..000000000
--- a/nvkm/subdev/therm/fan.c
+++ /dev/null
@@ -1,287 +0,0 @@
-/*
- * Copyright 2012 Red Hat Inc.
- *
- * Permission is hereby granted, free of charge, to any person obtaining a
- * copy of this software and associated documentation files (the "Software"),
- * to deal in the Software without restriction, including without limitation
- * the rights to use, copy, modify, merge, publish, distribute, sublicense,
- * and/or sell copies of the Software, and to permit persons to whom the
- * Software is furnished to do so, subject to the following conditions:
- *
- * The above copyright notice and this permission notice shall be included in
- * all copies or substantial portions of the Software.
- *
- * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
- * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
- * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT.  IN NO EVENT SHALL
- * THE COPYRIGHT HOLDER(S) OR AUTHOR(S) BE LIABLE FOR ANY CLAIM, DAMAGES OR
- * OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE,
- * ARISING FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR
- * OTHER DEALINGS IN THE SOFTWARE.
- *
- * Authors: Ben Skeggs
- * 	    Martin Peres
- */
-
-#include "priv.h"
-
-#include <core/object.h>
-#include <core/device.h>
-
-#include <subdev/gpio.h>
-#include <subdev/timer.h>
-
-#include <subdev/bios/fan.h>
-
-static int
-nouveau_fan_update(struct nouveau_fan *fan, bool immediate, int target)
-{
-	struct nouveau_therm *therm = fan->parent;
-	struct nouveau_therm_priv *priv = (void *)therm;
-	struct nouveau_timer *ptimer = nouveau_timer(priv);
-	unsigned long flags;
-	int ret = 0;
-	int duty;
-
-	/* update target fan speed, restricting to allowed range */
-	spin_lock_irqsave(&fan->lock, flags);
-	if (target < 0)
-		target = fan->percent;
-	target = max_t(u8, target, fan->bios.min_duty);
-	target = min_t(u8, target, fan->bios.max_duty);
-	if (fan->percent != target) {
-		nv_debug(therm, "FAN target: %d\n", target);
-		fan->percent = target;
-	}
-
-	/* check that we're not already at the target duty cycle */
-	duty = fan->get(therm);
-	if (duty == target) {
-		spin_unlock_irqrestore(&fan->lock, flags);
-		return 0;
-	}
-
-	/* smooth out the fanspeed increase/decrease */
-	if (!immediate && duty >= 0) {
-		/* the constant "3" is a rough approximation taken from
-		 * nvidia's behaviour.
-		 * it is meant to bump the fan speed more incrementally
-		 */
-		if (duty < target)
-			duty = min(duty + 3, target);
-		else if (duty > target)
-			duty = max(duty - 3, target);
-	} else {
-		duty = target;
-	}
-
-	nv_debug(therm, "FAN update: %d\n", duty);
-	ret = fan->set(therm, duty);
-	if (ret) {
-		spin_unlock_irqrestore(&fan->lock, flags);
-		return ret;
-	}
-
-	/* fan speed updated, drop the fan lock before grabbing the
-	 * alarm-scheduling lock and risking a deadlock
-	 */
-	spin_unlock_irqrestore(&fan->lock, flags);
-
-	/* schedule next fan update, if not at target speed already */
-	if (list_empty(&fan->alarm.head) && target != duty) {
-		u16 bump_period = fan->bios.bump_period;
-		u16 slow_down_period = fan->bios.slow_down_period;
-		u64 delay;
-
-		if (duty > target)
-			delay = slow_down_period;
-		else if (duty == target)
-			delay = min(bump_period, slow_down_period) ;
-		else
-			delay = bump_period;
-
-		ptimer->alarm(ptimer, delay * 1000 * 1000, &fan->alarm);
-	}
-
-	return ret;
-}
-
-static void
-nouveau_fan_alarm(struct nouveau_alarm *alarm)
-{
-	struct nouveau_fan *fan = container_of(alarm, struct nouveau_fan, alarm);
-	nouveau_fan_update(fan, false, -1);
-}
-
-int
-nouveau_therm_fan_get(struct nouveau_therm *therm)
-{
-	struct nouveau_therm_priv *priv = (void *)therm;
-	return priv->fan->get(therm);
-}
-
-int
-nouveau_therm_fan_set(struct nouveau_therm *therm, bool immediate, int percent)
-{
-	struct nouveau_therm_priv *priv = (void *)therm;
-	return nouveau_fan_update(priv->fan, immediate, percent);
-}
-
-int
-nouveau_therm_fan_sense(struct nouveau_therm *therm)
-{
-	struct nouveau_therm_priv *priv = (void *)therm;
-	struct nouveau_timer *ptimer = nouveau_timer(therm);
-	struct nouveau_gpio *gpio = nouveau_gpio(therm);
-	u32 cycles, cur, prev;
-	u64 start, end, tach;
-
-	if (priv->fan->tach.func == DCB_GPIO_UNUSED)
-		return -ENODEV;
-
-	/* Time a complete rotation and extrapolate to RPM:
-	 * When the fan spins, it changes the value of GPIO FAN_SENSE.
-	 * We get 4 changes (0 -> 1 -> 0 -> 1) per complete rotation.
-	 */
-	start = ptimer->read(ptimer);
-	prev = gpio->get(gpio, 0, priv->fan->tach.func, priv->fan->tach.line);
-	cycles = 0;
-	do {
-		usleep_range(500, 1000); /* supports 0 < rpm < 7500 */
-
-		cur = gpio->get(gpio, 0, priv->fan->tach.func, priv->fan->tach.line);
-		if (prev != cur) {
-			if (!start)
-				start = ptimer->read(ptimer);
-			cycles++;
-			prev = cur;
-		}
-	} while (cycles < 5 && ptimer->read(ptimer) - start < 250000000);
-	end = ptimer->read(ptimer);
-
-	if (cycles == 5) {
-		tach = (u64)60000000000ULL;
-		do_div(tach, (end - start));
-		return tach;
-	} else
-		return 0;
-}
-
-int
-nouveau_therm_fan_user_get(struct nouveau_therm *therm)
-{
-	return nouveau_therm_fan_get(therm);
-}
-
-int
-nouveau_therm_fan_user_set(struct nouveau_therm *therm, int percent)
-{
-	struct nouveau_therm_priv *priv = (void *)therm;
-
-	if (priv->mode != NOUVEAU_THERM_CTRL_MANUAL)
-		return -EINVAL;
-
-	return nouveau_therm_fan_set(therm, true, percent);
-}
-
-static void
-nouveau_therm_fan_set_defaults(struct nouveau_therm *therm)
-{
-	struct nouveau_therm_priv *priv = (void *)therm;
-
-	priv->fan->bios.pwm_freq = 0;
-	priv->fan->bios.min_duty = 0;
-	priv->fan->bios.max_duty = 100;
-	priv->fan->bios.bump_period = 500;
-	priv->fan->bios.slow_down_period = 2000;
-	priv->fan->bios.linear_min_temp = 40;
-	priv->fan->bios.linear_max_temp = 85;
-}
-
-static void
-nouveau_therm_fan_safety_checks(struct nouveau_therm *therm)
-{
-	struct nouveau_therm_priv *priv = (void *)therm;
-
-	if (priv->fan->bios.min_duty > 100)
-		priv->fan->bios.min_duty = 100;
-	if (priv->fan->bios.max_duty > 100)
-		priv->fan->bios.max_duty = 100;
-
-	if (priv->fan->bios.min_duty > priv->fan->bios.max_duty)
-		priv->fan->bios.min_duty = priv->fan->bios.max_duty;
-}
-
-int
-nouveau_therm_fan_init(struct nouveau_therm *therm)
-{
-	return 0;
-}
-
-int
-nouveau_therm_fan_fini(struct nouveau_therm *therm, bool suspend)
-{
-	struct nouveau_therm_priv *priv = (void *)therm;
-	struct nouveau_timer *ptimer = nouveau_timer(therm);
-
-	if (suspend)
-		ptimer->alarm_cancel(ptimer, &priv->fan->alarm);
-	return 0;
-}
-
-int
-nouveau_therm_fan_ctor(struct nouveau_therm *therm)
-{
-	struct nouveau_therm_priv *priv = (void *)therm;
-	struct nouveau_gpio *gpio = nouveau_gpio(therm);
-	struct nouveau_bios *bios = nouveau_bios(therm);
-	struct dcb_gpio_func func;
-	int ret;
-
-	/* attempt to locate a drivable fan, and determine control method */
-	ret = gpio->find(gpio, 0, DCB_GPIO_FAN, 0xff, &func);
-	if (ret == 0) {
-		/* FIXME: is this really the place to perform such checks ? */
-		if (func.line != 16 && func.log[0] & DCB_GPIO_LOG_DIR_IN) {
-			nv_debug(therm, "GPIO_FAN is in input mode\n");
-			ret = -EINVAL;
-		} else {
-			ret = nouveau_fanpwm_create(therm, &func);
-			if (ret != 0)
-				ret = nouveau_fantog_create(therm, &func);
-		}
-	}
-
-	/* no controllable fan found, create a dummy fan module */
-	if (ret != 0) {
-		ret = nouveau_fannil_create(therm);
-		if (ret)
-			return ret;
-	}
-
-	nv_info(therm, "FAN control: %s\n", priv->fan->type);
-
-	/* read the current speed, it is useful when resuming */
-	priv->fan->percent = nouveau_therm_fan_get(therm);
-
-	/* attempt to detect a tachometer connection */
-	ret = gpio->find(gpio, 0, DCB_GPIO_FAN_SENSE, 0xff, &priv->fan->tach);
-	if (ret)
-		priv->fan->tach.func = DCB_GPIO_UNUSED;
-
-	/* initialise fan bump/slow update handling */
-	priv->fan->parent = therm;
-	nouveau_alarm_init(&priv->fan->alarm, nouveau_fan_alarm);
-	spin_lock_init(&priv->fan->lock);
-
-	/* other random init... */
-	nouveau_therm_fan_set_defaults(therm);
-	nvbios_perf_fan_parse(bios, &priv->fan->perf);
-	if (!nvbios_fan_parse(bios, &priv->fan->bios)) {
-		nv_debug(therm, "parsing the fan table failed\n");
-		if (nvbios_therm_fan_parse(bios, &priv->fan->bios))
-			nv_error(therm, "parsing both fan tables failed\n");
-	}
-	nouveau_therm_fan_safety_checks(therm);
-	return 0;
-}