static void cpu_fans_tick_split(void) { int err, cpu; s32 intake, temp, power, t_max = 0; DBG_LOTS("* cpu fans_tick_split()\n"); for (cpu = 0; cpu < nr_chips; ++cpu) { struct wf_cpu_pid_state *sp = &cpu_pid[cpu]; /* Read current speed */ wf_control_get(cpu_rear_fans[cpu], &sp->target); DBG_LOTS(" CPU%d: cur_target = %d RPM\n", cpu, sp->target); err = read_one_cpu_vals(cpu, &temp, &power); if (err) { failure_state |= FAILURE_SENSOR; cpu_max_all_fans(); return; } /* Keep track of highest temp */ t_max = max(t_max, temp); /* Handle possible overtemps */ if (cpu_check_overtemp(t_max)) return; /* Run PID */ wf_cpu_pid_run(sp, power, temp); DBG_LOTS(" CPU%d: target = %d RPM\n", cpu, sp->target); /* Apply result directly to exhaust fan */ err = wf_control_set(cpu_rear_fans[cpu], sp->target); if (err) { pr_warning("wf_pm72: Fan %s reports error %d\n", cpu_rear_fans[cpu]->name, err); failure_state |= FAILURE_FAN; break; } /* Scale result for intake fan */ intake = (sp->target * CPU_INTAKE_SCALE) >> 16; DBG_LOTS(" CPU%d: intake = %d RPM\n", cpu, intake); err = wf_control_set(cpu_front_fans[cpu], intake); if (err) { pr_warning("wf_pm72: Fan %s reports error %d\n", cpu_front_fans[cpu]->name, err); failure_state |= FAILURE_FAN; break; } } }
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; } }
static void cpu_fans_tick(void) { int err, cpu, i; s32 speed, temp, power, t_max = 0; DBG_LOTS("* cpu fans_tick_split()\n"); for (cpu = 0; cpu < nr_chips; ++cpu) { struct wf_cpu_pid_state *sp = &cpu_pid[cpu]; /* Read current speed */ wf_control_get(cpu_fans[cpu][0], &sp->target); err = read_one_cpu_vals(cpu, &temp, &power); if (err) { failure_state |= FAILURE_SENSOR; cpu_max_all_fans(); return; } /* Keep track of highest temp */ t_max = max(t_max, temp); /* Handle possible overtemps */ if (cpu_check_overtemp(t_max)) return; /* Run PID */ wf_cpu_pid_run(sp, power, temp); DBG_LOTS(" CPU%d: target = %d RPM\n", cpu, sp->target); /* Apply DIMMs clamp */ speed = max(sp->target, dimms_output_clamp); /* Apply result to all cpu fans */ for (i = 0; i < 3; i++) { err = wf_control_set(cpu_fans[cpu][i], speed); if (err) { pr_warning("wf_rm31: Fan %s reports error %d\n", cpu_fans[cpu][i]->name, err); failure_state |= FAILURE_FAN; } } } }
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; } }
static void cpu_fans_tick_combined(void) { s32 temp0, power0, temp1, power1, t_max = 0; s32 temp, power, intake, pump; struct wf_control *pump0, *pump1; struct wf_cpu_pid_state *sp = &cpu_pid[0]; int err, cpu; DBG_LOTS("* cpu fans_tick_combined()\n"); /* Read current speed from cpu 0 */ wf_control_get(cpu_rear_fans[0], &sp->target); DBG_LOTS(" CPUs: cur_target = %d RPM\n", sp->target); /* Read values for both CPUs */ err = read_one_cpu_vals(0, &temp0, &power0); if (err) { failure_state |= FAILURE_SENSOR; cpu_max_all_fans(); return; } err = read_one_cpu_vals(1, &temp1, &power1); if (err) { failure_state |= FAILURE_SENSOR; cpu_max_all_fans(); return; } /* Keep track of highest temp */ t_max = max(t_max, max(temp0, temp1)); /* Handle possible overtemps */ if (cpu_check_overtemp(t_max)) return; /* Use the max temp & power of both */ temp = max(temp0, temp1); power = max(power0, power1); /* Run PID */ wf_cpu_pid_run(sp, power, temp); /* Scale result for intake fan */ intake = (sp->target * CPU_INTAKE_SCALE) >> 16; /* Same deal with pump speed */ pump0 = cpu_pumps[0]; pump1 = cpu_pumps[1]; if (!pump0) { pump0 = pump1; pump1 = NULL; } pump = (sp->target * wf_control_get_max(pump0)) / cpu_mpu_data[0]->rmaxn_exhaust_fan; DBG_LOTS(" CPUs: target = %d RPM\n", sp->target); DBG_LOTS(" CPUs: intake = %d RPM\n", intake); DBG_LOTS(" CPUs: pump = %d RPM\n", pump); for (cpu = 0; cpu < nr_chips; cpu++) { err = wf_control_set(cpu_rear_fans[cpu], sp->target); if (err) { pr_warning("wf_pm72: Fan %s reports error %d\n", cpu_rear_fans[cpu]->name, err); failure_state |= FAILURE_FAN; } err = wf_control_set(cpu_front_fans[cpu], intake); if (err) { pr_warning("wf_pm72: Fan %s reports error %d\n", cpu_front_fans[cpu]->name, err); failure_state |= FAILURE_FAN; } err = 0; if (cpu_pumps[cpu]) err = wf_control_set(cpu_pumps[cpu], pump); if (err) { pr_warning("wf_pm72: Pump %s reports error %d\n", cpu_pumps[cpu]->name, err); failure_state |= FAILURE_FAN; } } }