92 static void set_fan_speeds(struct bbc_fan_control *fp)  in set_fan_speeds()  argument
97 	if (fp->cpu_fan_speed < FAN_SPEED_MIN)  in set_fan_speeds()
98 		fp->cpu_fan_speed = FAN_SPEED_MIN;  in set_fan_speeds()
99 	if (fp->cpu_fan_speed > FAN_SPEED_MAX)  in set_fan_speeds()
100 		fp->cpu_fan_speed = FAN_SPEED_MAX;  in set_fan_speeds()
101 	if (fp->system_fan_speed < FAN_SPEED_MIN)  in set_fan_speeds()
102 		fp->system_fan_speed = FAN_SPEED_MIN;  in set_fan_speeds()
103 	if (fp->system_fan_speed > FAN_SPEED_MAX)  in set_fan_speeds()
104 		fp->system_fan_speed = FAN_SPEED_MAX;  in set_fan_speeds()
107 	       fp->index,  in set_fan_speeds()
108 	       fp->cpu_fan_speed, fp->system_fan_speed);  in set_fan_speeds()
111 	bbc_i2c_writeb(fp->client, fp->cpu_fan_speed, CPU_FAN_REG);  in set_fan_speeds()
112 	bbc_i2c_writeb(fp->client, fp->system_fan_speed, SYS_FAN_REG);  in set_fan_speeds()
113 	bbc_i2c_writeb(fp->client,  in set_fan_speeds()
114 		       (fp->psupply_fan_on ?  in set_fan_speeds()
319 static int maybe_new_ambient_fan_speed(struct bbc_fan_control *fp)  in maybe_new_ambient_fan_speed()  argument
329 		if (fp->system_fan_speed >= FAN_SPEED_MAX)  in maybe_new_ambient_fan_speed()
332 			fp->system_fan_speed = FAN_SPEED_MAX;  in maybe_new_ambient_fan_speed()
335 			if (fp->system_fan_speed >= FAN_SPEED_MAX)  in maybe_new_ambient_fan_speed()
338 				fp->system_fan_speed += 2;  in maybe_new_ambient_fan_speed()
340 			int orig_speed = fp->system_fan_speed;  in maybe_new_ambient_fan_speed()
343 			    orig_speed <= (fp->cpu_fan_speed - 3))  in maybe_new_ambient_fan_speed()
346 				fp->system_fan_speed -= 1;  in maybe_new_ambient_fan_speed()
353 static int maybe_new_cpu_fan_speed(struct bbc_fan_control *fp)  in maybe_new_cpu_fan_speed()  argument
363 		if (fp->cpu_fan_speed >= FAN_SPEED_MAX)  in maybe_new_cpu_fan_speed()
366 			fp->cpu_fan_speed = FAN_SPEED_MAX;  in maybe_new_cpu_fan_speed()
369 			if (fp->cpu_fan_speed >= FAN_SPEED_MAX)  in maybe_new_cpu_fan_speed()
372 				fp->cpu_fan_speed += 2;  in maybe_new_cpu_fan_speed()
373 				if (fp->system_fan_speed <  in maybe_new_cpu_fan_speed()
374 				    (fp->cpu_fan_speed - 3))  in maybe_new_cpu_fan_speed()
375 					fp->system_fan_speed =  in maybe_new_cpu_fan_speed()
376 						fp->cpu_fan_speed - 3;  in maybe_new_cpu_fan_speed()
379 			if (fp->cpu_fan_speed <= FAN_SPEED_MIN)  in maybe_new_cpu_fan_speed()
382 				fp->cpu_fan_speed -= 1;  in maybe_new_cpu_fan_speed()
389 static void maybe_new_fan_speeds(struct bbc_fan_control *fp)  in maybe_new_fan_speeds()  argument
393 	new  = maybe_new_ambient_fan_speed(fp);  in maybe_new_fan_speeds()
394 	new |= maybe_new_cpu_fan_speed(fp);  in maybe_new_fan_speeds()
397 		set_fan_speeds(fp);  in maybe_new_fan_speeds()
402 	struct bbc_fan_control *fp;  in fans_full_blast()  local
407 	list_for_each_entry(fp, &all_fans, glob_list) {  in fans_full_blast()
408 		fp->cpu_fan_speed = FAN_SPEED_MAX;  in fans_full_blast()
409 		fp->system_fan_speed = FAN_SPEED_MAX;  in fans_full_blast()
410 		fp->psupply_fan_on = 1;  in fans_full_blast()
411 		set_fan_speeds(fp);  in fans_full_blast()
425 		struct bbc_fan_control *fp;  in kenvctrld()  local
435 		list_for_each_entry(fp, &all_fans, glob_list)  in kenvctrld()
436 			maybe_new_fan_speeds(fp);  in kenvctrld()
496 	struct bbc_fan_control *fp;  in attach_one_fan()  local
498 	fp = kzalloc(sizeof(*fp), GFP_KERNEL);  in attach_one_fan()
499 	if (!fp)  in attach_one_fan()
502 	INIT_LIST_HEAD(&fp->bp_list);  in attach_one_fan()
503 	INIT_LIST_HEAD(&fp->glob_list);  in attach_one_fan()
505 	fp->client = bbc_i2c_attach(bp, op);  in attach_one_fan()
506 	if (!fp->client) {  in attach_one_fan()
507 		kfree(fp);  in attach_one_fan()
511 	fp->index = fan_idx;  in attach_one_fan()
513 	list_add(&fp->glob_list, &all_fans);  in attach_one_fan()
514 	list_add(&fp->bp_list, &bp->fans);  in attach_one_fan()
522 	fp->psupply_fan_on = 1;  in attach_one_fan()
523 	fp->cpu_fan_speed = (FAN_SPEED_MAX - FAN_SPEED_MIN) / 2;  in attach_one_fan()
524 	fp->cpu_fan_speed += FAN_SPEED_MIN;  in attach_one_fan()
525 	fp->system_fan_speed = (FAN_SPEED_MAX - FAN_SPEED_MIN) / 2;  in attach_one_fan()
526 	fp->system_fan_speed += FAN_SPEED_MIN;  in attach_one_fan()
528 	set_fan_speeds(fp);  in attach_one_fan()
548 static void destroy_one_fan(struct bbc_fan_control *fp)  in destroy_one_fan()  argument
550 	bbc_i2c_detach(fp->client);  in destroy_one_fan()
551 	kfree(fp);  in destroy_one_fan()
556 	struct bbc_fan_control *fp, *fpos;  in destroy_all_fans()  local
558 	list_for_each_entry_safe(fp, fpos, &bp->fans, bp_list) {  in destroy_all_fans()
559 		list_del(&fp->bp_list);  in destroy_all_fans()
560 		list_del(&fp->glob_list);  in destroy_all_fans()
561 		destroy_one_fan(fp);  in destroy_all_fans()