Example #1
0
static void backside_fan_tick(void)
{
	s32 temp, dtemp;
	int speed, dspeed, fan_min;
	int err;

	if (!backside_fan || !backside_temp || !dimms_temp || !backside_tick)
		return;
	if (--backside_tick > 0)
		return;
	backside_tick = backside_pid.param.interval;

	DBG_LOTS("* backside fans tick\n");

	/* Update fan speed from actual fans */
	err = wf_control_get(backside_fan, &speed);
	if (!err)
		backside_pid.target = speed;

	err = wf_sensor_get(backside_temp, &temp);
	if (err) {
		printk(KERN_WARNING "windfarm: U3 temp sensor error %d\n",
		       err);
		failure_state |= FAILURE_SENSOR;
		wf_control_set_max(backside_fan);
		return;
	}
	speed = wf_pid_run(&backside_pid, temp);

	DBG_LOTS("backside PID temp=%d.%.3d speed=%d\n",
		 FIX32TOPRINT(temp), speed);

	err = wf_sensor_get(dimms_temp, &dtemp);
	if (err) {
		printk(KERN_WARNING "windfarm: DIMMs temp sensor error %d\n",
		       err);
		failure_state |= FAILURE_SENSOR;
		wf_control_set_max(backside_fan);
		return;
	}
	dspeed = wf_pid_run(&dimms_pid, dtemp);
	dimms_output_clamp = dspeed;

	fan_min = (dspeed * 100) / 14000;
	fan_min = max(fan_min, backside_param.min);
	speed = max(speed, fan_min);

	err = wf_control_set(backside_fan, speed);
	if (err) {
		printk(KERN_WARNING "windfarm: backside fan error %d\n", err);
		failure_state |= FAILURE_FAN;
	}
}
Example #2
0
static void slots_fan_tick(void)
{
	s32 temp;
	int speed;
	int err;

	if (!slots_fan || !slots_temp || !slots_tick)
		return;
	if (--slots_tick > 0)
		return;
	slots_tick = slots_pid.param.interval;

	DBG_LOTS("* slots fans tick\n");

	err = wf_sensor_get(slots_temp, &temp);
	if (err) {
		pr_warning("wf_rm31: slots temp sensor error %d\n", err);
		failure_state |= FAILURE_SENSOR;
		wf_control_set_max(slots_fan);
		return;
	}
	speed = wf_pid_run(&slots_pid, temp);

	DBG_LOTS("slots PID temp=%d.%.3d speed=%d\n",
		 FIX32TOPRINT(temp), speed);

	slots_speed = speed;
	err = wf_control_set(slots_fan, speed);
	if (err) {
		printk(KERN_WARNING "windfarm: slots bay fan error %d\n", err);
		failure_state |= FAILURE_FAN;
	}
}
Example #3
0
static int read_one_cpu_vals(int cpu, s32 *temp, s32 *power)
{
	s32 dtemp, volts, amps;
	int rc;

	/* Get diode temperature */
	rc = wf_sensor_get(sens_cpu_temp[cpu], &dtemp);
	if (rc) {
		DBG("  CPU%d: temp reading error !\n", cpu);
		return -EIO;
	}
	DBG_LOTS("  CPU%d: temp   = %d.%03d\n", cpu, FIX32TOPRINT((dtemp)));
	*temp = dtemp;

	/* Get voltage */
	rc = wf_sensor_get(sens_cpu_volts[cpu], &volts);
	if (rc) {
		DBG("  CPU%d, volts reading error !\n", cpu);
		return -EIO;
	}
	DBG_LOTS("  CPU%d: volts  = %d.%03d\n", cpu, FIX32TOPRINT((volts)));

	/* Get current */
	rc = wf_sensor_get(sens_cpu_amps[cpu], &amps);
	if (rc) {
		DBG("  CPU%d, current reading error !\n", cpu);
		return -EIO;
	}
	DBG_LOTS("  CPU%d: amps   = %d.%03d\n", cpu, FIX32TOPRINT((amps)));

	/* Calculate power */

	/* Scale voltage and current raw sensor values according to fixed scales
	 * obtained in Darwin and calculate power from I and V
	 */
	*power = (((u64)volts) * ((u64)amps)) >> 16;

	DBG_LOTS("  CPU%d: power  = %d.%03d\n", cpu, FIX32TOPRINT((*power)));

	return 0;

}
static void backside_fan_tick(void)
{
    s32 temp;
    int speed;
    int err;

    if (!backside_fan || !backside_temp || !backside_tick)
        return;
    if (--backside_tick > 0)
        return;
    backside_tick = backside_pid.param.interval;

    DBG_LOTS("* backside fans tick\n");

    /* Update fan speed from actual fans */
    err = wf_control_get(backside_fan, &speed);
    if (!err)
        backside_pid.target = speed;

    err = wf_sensor_get(backside_temp, &temp);
    if (err) {
        printk(KERN_WARNING "windfarm: U4 temp sensor error %d\n",
               err);
        failure_state |= FAILURE_SENSOR;
        wf_control_set_max(backside_fan);
        return;
    }
    speed = wf_pid_run(&backside_pid, temp);

    DBG_LOTS("backside PID temp=%d.%.3d speed=%d\n",
             FIX32TOPRINT(temp), speed);

    err = wf_control_set(backside_fan, speed);
    if (err) {
        printk(KERN_WARNING "windfarm: backside fan error %d\n", err);
        failure_state |= FAILURE_FAN;
    }
}
static void drives_fan_tick(void)
{
    s32 temp;
    int speed;
    int err;

    if (!drives_fan || !drives_temp || !drives_tick)
        return;
    if (--drives_tick > 0)
        return;
    drives_tick = drives_pid.param.interval;

    DBG_LOTS("* drives fans tick\n");

    /* Update fan speed from actual fans */
    err = wf_control_get(drives_fan, &speed);
    if (!err)
        drives_pid.target = speed;

    err = wf_sensor_get(drives_temp, &temp);
    if (err) {
        pr_warning("wf_pm72: drive bay temp sensor error %d\n", err);
        failure_state |= FAILURE_SENSOR;
        wf_control_set_max(drives_fan);
        return;
    }
    speed = wf_pid_run(&drives_pid, temp);

    DBG_LOTS("drives PID temp=%d.%.3d speed=%d\n",
             FIX32TOPRINT(temp), speed);

    err = wf_control_set(drives_fan, speed);
    if (err) {
        printk(KERN_WARNING "windfarm: drive bay fan error %d\n", err);
        failure_state |= FAILURE_FAN;
    }
}
Example #6
0
static void wf_smu_create_slots_fans(void)
{
	struct wf_pid_param param = {
		.interval	= 1,
		.history_len	= 8,
		.gd		= 0x00000000,
		.gp		= 0x00000000,
		.gr		= 0x00020000,
		.itarget	= 0x00000000
	};

	/* Alloc & initialize state */
	wf_smu_slots_fans = kmalloc(sizeof(struct wf_smu_slots_fans_state),
					GFP_KERNEL);
	if (wf_smu_slots_fans == NULL) {
		printk(KERN_WARNING "windfarm: Memory allocation error"
		       " max fan speed\n");
		goto fail;
	}
       	wf_smu_slots_fans->ticks = 1;

	/* Fill PID params */
	param.additive = (fan_slots->type == WF_CONTROL_RPM_FAN);
	param.min = wf_control_get_min(fan_slots);
	param.max = wf_control_get_max(fan_slots);
	wf_pid_init(&wf_smu_slots_fans->pid, &param);

	DBG("wf: Slots Fan control initialized.\n");
	DBG("    itarged=%d.%03d, min=%d RPM, max=%d RPM\n",
	    FIX32TOPRINT(param.itarget), param.min, param.max);
	return;

 fail:
	if (fan_slots)
		wf_control_set_max(fan_slots);
}

static void wf_smu_slots_fans_tick(struct wf_smu_slots_fans_state *st)
{
	s32 new_setpoint, power;
	int rc;

	if (--st->ticks != 0) {
		if (wf_smu_readjust)
			goto readjust;
		return;
	}
	st->ticks = st->pid.param.interval;

	rc = wf_sensor_get(sensor_slots_power, &power);
	if (rc) {
		printk(KERN_WARNING "windfarm: Slots power sensor error %d\n",
		       rc);
		wf_smu_failure_state |= FAILURE_SENSOR;
		return;
	}

	DBG("wf_smu: Slots Fans tick ! Slots power: %d.%03d\n",
	    FIX32TOPRINT(power));

#if 0 /* Check what makes a good overtemp condition */
	if (power > (st->pid.param.itarget + 0x50000))
		wf_smu_failure_state |= FAILURE_OVERTEMP;
#endif

	new_setpoint = wf_pid_run(&st->pid, power);

	DBG("wf_smu: new_setpoint: %d\n", (int)new_setpoint);

	if (st->setpoint == new_setpoint)
		return;
	st->setpoint = new_setpoint;
 readjust:
	if (fan_slots && wf_smu_failure_state == 0) {
		rc = wf_control_set(fan_slots, st->setpoint);
		if (rc) {
			printk(KERN_WARNING "windfarm: Slots fan error %d\n",
			       rc);
			wf_smu_failure_state |= FAILURE_FAN;
		}
	}
}
Example #7
0
static void wf_smu_create_drive_fans(void)
{
	struct wf_pid_param param = {
		.interval	= 5,
		.history_len	= 2,
		.gd		= 0x01e00000,
		.gp		= 0x00500000,
		.gr		= 0x00000000,
		.itarget	= 0x00200000,
	};

	/* Alloc & initialize state */
	wf_smu_drive_fans = kmalloc(sizeof(struct wf_smu_drive_fans_state),
					GFP_KERNEL);
	if (wf_smu_drive_fans == NULL) {
		printk(KERN_WARNING "windfarm: Memory allocation error"
		       " max fan speed\n");
		goto fail;
	}
       	wf_smu_drive_fans->ticks = 1;

	/* Fill PID params */
	param.additive = (fan_hd->type == WF_CONTROL_RPM_FAN);
	param.min = wf_control_get_min(fan_hd);
	param.max = wf_control_get_max(fan_hd);
	wf_pid_init(&wf_smu_drive_fans->pid, &param);

	DBG("wf: Drive Fan control initialized.\n");
	DBG("    itarged=%d.%03d, min=%d RPM, max=%d RPM\n",
	    FIX32TOPRINT(param.itarget), param.min, param.max);
	return;

 fail:
	if (fan_hd)
		wf_control_set_max(fan_hd);
}

static void wf_smu_drive_fans_tick(struct wf_smu_drive_fans_state *st)
{
	s32 new_setpoint, temp;
	int rc;

	if (--st->ticks != 0) {
		if (wf_smu_readjust)
			goto readjust;
		return;
	}
	st->ticks = st->pid.param.interval;

	rc = wf_sensor_get(sensor_hd_temp, &temp);
	if (rc) {
		printk(KERN_WARNING "windfarm: HD temp sensor error %d\n",
		       rc);
		wf_smu_failure_state |= FAILURE_SENSOR;
		return;
	}

	DBG("wf_smu: Drive Fans tick ! HD temp: %d.%03d\n",
	    FIX32TOPRINT(temp));

	if (temp > (st->pid.param.itarget + 0x50000))
		wf_smu_failure_state |= FAILURE_OVERTEMP;

	new_setpoint = wf_pid_run(&st->pid, temp);

	DBG("wf_smu: new_setpoint: %d\n", (int)new_setpoint);

	if (st->setpoint == new_setpoint)
		return;
	st->setpoint = new_setpoint;
 readjust:
	if (fan_hd && wf_smu_failure_state == 0) {
		rc = wf_control_set(fan_hd, st->setpoint);
		if (rc) {
			printk(KERN_WARNING "windfarm: HD fan error %d\n",
			       rc);
			wf_smu_failure_state |= FAILURE_FAN;
		}
	}
}
Example #8
0
static void wf_smu_cpu_fans_tick(struct wf_smu_cpu_fans_state *st)
{
	s32 new_setpoint, temp, power;
	int rc;

	if (--st->ticks != 0) {
		if (wf_smu_readjust)
			goto readjust;
		return;
	}
	st->ticks = WF_SMU_CPU_FANS_INTERVAL;

	rc = wf_sensor_get(sensor_cpu_temp, &temp);
	if (rc) {
		printk(KERN_WARNING "windfarm: CPU temp sensor error %d\n",
		       rc);
		wf_smu_failure_state |= FAILURE_SENSOR;
		return;
	}

	rc = wf_sensor_get(sensor_cpu_power, &power);
	if (rc) {
		printk(KERN_WARNING "windfarm: CPU power sensor error %d\n",
		       rc);
		wf_smu_failure_state |= FAILURE_SENSOR;
		return;
	}

	DBG("wf_smu: CPU Fans tick ! CPU temp: %d.%03d, power: %d.%03d\n",
	    FIX32TOPRINT(temp), FIX32TOPRINT(power));

#ifdef HACKED_OVERTEMP
	if (temp > 0x4a0000)
		wf_smu_failure_state |= FAILURE_OVERTEMP;
#else
	if (temp > st->pid.param.tmax)
		wf_smu_failure_state |= FAILURE_OVERTEMP;
#endif
	new_setpoint = wf_cpu_pid_run(&st->pid, power, temp);

	DBG("wf_smu: new_setpoint: %d RPM\n", (int)new_setpoint);

	if (st->cpu_setpoint == new_setpoint)
		return;
	st->cpu_setpoint = new_setpoint;
 readjust:
	if (fan_cpu_main && wf_smu_failure_state == 0) {
		rc = wf_control_set(fan_cpu_main, st->cpu_setpoint);
		if (rc) {
			printk(KERN_WARNING "windfarm: CPU main fan"
			       " error %d\n", rc);
			wf_smu_failure_state |= FAILURE_FAN;
		}
	}
	if (fan_cpu_second && wf_smu_failure_state == 0) {
		rc = wf_control_set(fan_cpu_second, st->cpu_setpoint);
		if (rc) {
			printk(KERN_WARNING "windfarm: CPU second fan"
			       " error %d\n", rc);
			wf_smu_failure_state |= FAILURE_FAN;
		}
	}
	if (fan_cpu_third && wf_smu_failure_state == 0) {
		rc = wf_control_set(fan_cpu_third, st->cpu_setpoint);
		if (rc) {
			printk(KERN_WARNING "windfarm: CPU third fan"
			       " error %d\n", rc);
			wf_smu_failure_state |= FAILURE_FAN;
		}
	}
}