36 //build the pwm and tach access device node file name, and mapping pwm/tach number starting from 1.
37 …NUM)	    snprintf(buffer, sizeof(buffer), "%s%d%s%d", HWMON_DIR "/hwmon",DEV_ID, "/pwm", PWM_NUM+1)
41 //predefine FAN RPM range, must defined at some where for configuration.
54 		retval = -1;  in pwmtach_directory_check()
58 //Notice: dutycycle_value is one byte (0-255)
72 	dutycycle_value = ppwmtach_arg->dutycycle;  in SET_PWM_DUTYCYCLE_VALUE()
73 	BUILD_PWM_NODE_NAME(DevNodeFileName,ppwmtach_arg->dev_id,ppwmtach_arg->pwmnumber);  in SET_PWM_DUTYCYCLE_VALUE()
88 …printf("%s: Error write dutycycle value %d to pwm %d\n",__FUNCTION__,dutycycle_value,ppwmtach_arg-…  in SET_PWM_DUTYCYCLE_VALUE()
89 		retval = -1;  in SET_PWM_DUTYCYCLE_VALUE()
102 	if(ppwmtach_arg->dutycycle > 100)  in SET_PWM_DUTYCYCLE()
104 		return -1;  in SET_PWM_DUTYCYCLE()
107 	dutycycle_value = (ppwmtach_arg->dutycycle*255)/100;  in SET_PWM_DUTYCYCLE()
108 	ppwmtach_arg->dutycycle = dutycycle_value;  in SET_PWM_DUTYCYCLE()
125 	BUILD_PWM_NODE_NAME(DevNodeFileName,ppwmtach_arg->dev_id,ppwmtach_arg->pwmnumber);  in GET_PWM_DUTYCYCLE()
136 	ppwmtach_arg->dutycycle = atoi(duty_num);  in GET_PWM_DUTYCYCLE()
137 …printf("%s:dutycycle value %d to pwm %d\n",__FUNCTION__,ppwmtach_arg->dutycycle,ppwmtach_arg->pwmn…  in GET_PWM_DUTYCYCLE()
153 	BUILD_TACH_NODE_NAME(DevNodeFileName,ppwmtach_arg->dev_id,ppwmtach_arg->tachnumber);  in GET_TACH_SPEED()
166 	ppwmtach_arg->rpmvalue = atoi(data);  in GET_TACH_SPEED()
168 	printf("%s:rpm value %d\n",__FUNCTION__,ppwmtach_arg->rpmvalue);  in GET_TACH_SPEED()
174 //mapping fan number to pwm number
175 //using information in fan@number reg item, to look up the pwm index
187 	BUILD_FAN_REG_NAME(DevNodeFileName,ppwmtach_arg->dev_id,ppwmtach_arg->fannumber);  in GET_PWM_NUMBER()
201 		retval = -1;  in GET_PWM_NUMBER()
205 		printf("%s:fan %d, pwm %d, val 0x%X\n",__FUNCTION__,ppwmtach_arg->fannumber,retval,reg_val);  in GET_PWM_NUMBER()
209 	// printf("%s:rpm value %d\n",__FUNCTION__,ppwmtach_arg->rpmvalue);  in GET_PWM_NUMBER()
215 …"%s, Command 0x%X:Dev:%d,Pwm:0x%X,Fan:0x%x,Tach:0x%X\n",__FUNCTION__,command,argp->dev_id,argp->pw…  in pwmtach_action()
229 			argp->tachnumber = GET_TACH_NUMBER(argp->fannumber);  in pwmtach_action()
236 			argp->max_rpm = RPM_MAX;  in pwmtach_action()
237 			argp->min_rpm = RPM_MIN;  in pwmtach_action()
240 …argp->pwmnumber         = GET_PWM_NUMBER(argp);; //since we don't have the fan to pwm mapping, jus…  in pwmtach_action()
241 …argp->counterresvalue   = COUNTERRES_DEF; //since driver don't support COUNTERRES, just using defa…  in pwmtach_action()
247 			retval = -1;  in pwmtach_action()
260 	if(retval != -1)  in get_tach_speed()
273 	pwmtach_arg.dutycycle= dutycycle_percentage;  in set_pwm_dutycycle()
279 //Notice: dutycycle_value is one byte (0-255)
287 	pwmtach_arg.dutycycle= dutycycle_value;  in set_pwm_dutycycle_value()
301 	if(retval != -1)  in get_pwm_dutycycle()
302 		*dutycycle_percentage = pwmtach_arg.dutycycle;  in get_pwm_dutycycle()
319 	indata->dev_id = dev_id;  in set_fan_speed()
320 	indata->fannumber = fan_number;  in set_fan_speed()
321 	indata->rpmvalue = rpm_value;  in set_fan_speed()
322 	indata->counterresvalue = 0;  in set_fan_speed()
323 	indata->dutycycle = 0;  in set_fan_speed()
324 	indata->prevdutycycle = 0;  in set_fan_speed()
327 	if ((rpm_value < indata->min_rpm) || (rpm_value > indata->max_rpm))  in set_fan_speed()
329 		printf("Out of range Fan Speed value for fan.\n");  in set_fan_speed()
330 		return -1;  in set_fan_speed()
334 	while (retries--)  in set_fan_speed()
340 			indata->dutycycle = indata->prevdutycycle;  in set_fan_speed()
342 			return -1;  in set_fan_speed()
346 			indata->prevdutycycle = indata->dutycycle;  in set_fan_speed()
347 			if (indata->rpmvalue > (desiredrpm + 50))  in set_fan_speed()
349 				if (indata->dutycycle <= ((indata->counterresvalue*10)/100))  in set_fan_speed()
353 						printf("\nSpeed is set to minimum possible speed of %d RPM.\n",indata->rpmvalue);  in set_fan_speed()
360 					indata->dutycycle -= ((5 * indata->counterresvalue)/100);  in set_fan_speed()
363 			else if (indata->rpmvalue < (desiredrpm - 50))  in set_fan_speed()
365 				if (indata->dutycycle >= indata->counterresvalue)  in set_fan_speed()
369 						printf("\nSpeed is set to maximum possible speed of %d RPM.\n",indata->rpmvalue);  in set_fan_speed()
376 					indata->dutycycle += ((5 * indata->counterresvalue)/100);  in set_fan_speed()
385 			printf("After update: dutycycle=%d, rpmvalue=%d\n", indata->dutycycle, indata->rpmvalue);  in set_fan_speed()
387 			if(indata->prevdutycycle < indata->dutycycle)  in set_fan_speed()
391 					indata->dutycycle = indata->prevdutycycle;  in set_fan_speed()
402 					indata->dutycycle = indata->prevdutycycle;  in set_fan_speed()
412 …tf("retry %d : dt=%d, ps=%d, cr=%d\n", retries, indata->dutycycle, indata->prescalervalue, indata-…  in set_fan_speed()
426 	if(retval != -1)  in get_fan_speed()