Documentation/hwmon/abituguru-datasheet.rst

14 Olle Sandberg <ollebull@gmail.com>, 2005-05-25
27 Hans de Goede <j.w.r.degoede@hhs.nl>, 28-01-2006
33 As far as known the uGuru is always placed at and using the (ISA) I/O-ports
34 0xE0 and 0xE4, so we don't have to scan any port-range, just check what the two
35 ports are holding for detection. We will refer to 0xE0 as CMD (command-port)
39 present. We have to check for two different values at data-port, because
41 later on attached again data-port will hold 0x08, more about this later.
57 ----------
82 -----------
101 ----------------------------------------------
114 -------
133 -------
152 -------
167 --------------------
172   This byte holds the alarm flags for sensor 0-7 of Sensor Bank1, with bit 0
176   This byte holds the alarm flags for sensor 8-15 of Sensor Bank1, with bit 0
180   This byte holds the alarm flags for sensor 0-5 of Sensor Bank2, with bit 0
185 --------------------------------------------
189 - Sensor  0 CPU temp
190 - Sensor  1 SYS temp
191 - Sensor  3 CPU core volt
192 - Sensor  4 DDR volt
193 - Sensor 10 DDR Vtt volt
194 - Sensor 15 PWM temp
198   volt and temp sensors, this is motherboard specific. The uGuru however does
205 in use result in ranges of: 0-4361mV, 0-6248mV or 0-14510mV. 3.3 volt sources
206 use the 0-4361mV range, 5 volt the 0-6248mV and 12 volt the 0-14510mV .
208 Temp sensors also use a linear scale, a reading of 0 corresponds with 0 degree
213 ---------------------------------------------------------------------------
220   Alarm behaviour for the selected sensor. A 1 enables the described
224   Give an alarm if measured temp is over the warning threshold		(RW) [1]_
227   Give an alarm if measured volt is over the max threshold		(RW) [2]_
230   Give an alarm if measured volt is under the min threshold		(RW) [2]_
233   Beep if alarm								(RW)
236   1 if alarm cause measured temp is over the warning threshold		(R)
239   1 if alarm cause measured volt is over the max threshold		(R)
242   1 if alarm cause measured volt is under the min threshold		(R)
245   - Volt sensor: Shutdown if alarm persist for more than 4 seconds	(RW)
246   - Temp sensor: Shutdown if temp is over the shutdown threshold	(RW)
248 .. [1] This bit is only honored/used by the uGuru if a temp sensor is connected
256   - Temp sensor: warning threshold  (scale as bank 0x21)
257   - Volt sensor: min threshold      (scale as bank 0x21)
260   - Temp sensor: shutdown threshold (scale as bank 0x21)
261   - Volt sensor: max threshold      (scale as bank 0x21)
265 ---------------------------------------------------------------------------
268   - Sensor 0 usually controls the CPU fan
269   - Sensor 1 usually controls the NB (or chipset for single chip) fan
270   - Sensor 2 usually controls the System fan
274   low nibble (temp)sensor address at bank 0x21 used for control.
277   0-255 = 0-12v (linear), specify voltage at which fan will rotate when under
278   low threshold temp (specified in byte 3)
281   0-255 = 0-12v (linear), specify voltage at which fan will rotate when above
282   high threshold temp (specified in byte 4)
285   Low threshold temp  (scale as bank 0x21)
288   High threshold temp (scale as bank 0x21)
292 ---------------------------------------------
297   - Sensor 0: CPU fan speed
298   - Sensor 1: NB (or chipset for single chip) fan speed
299   - Sensor 2: SYS fan speed
302   This byte holds the reading from the sensor. 0-255 = 0-15300 (linear)
306 -----------------------------------------------------------------------------
311   Alarm behaviour for the selected sensor. A 1 enables the described behaviour.
314   Give an alarm if measured rpm is under the min threshold	(RW)
317   Beep if alarm							(RW)
320   Shutdown if alarm persist for more than 4 seconds		(RW)
331 0-0x30 with the reading code used for the sensor banks (0x20-0x28) and this