PowerBook battery test

[Benjamin Herrenschmidt]

I've made a little MacOS tool (with source) that:

 - Gets infos about batteries and charger from MacOS using the Power Manager
 - Gets infos about batteries and charger using 3 different PMU commands:

  0x6b - currently used by Paul's Batmon tool, seems to be obsolete and only
         partially implemented on recent machines. (only flags)

  0x68 - this one is sent by old Power manager functions when querying
the battery. I've not found the exact meaning yet.

  0x6f - this one is sent all the time by MacOS on my machine. It looks
like an extended version of 0x6b with a parameter - the battery number
(1=left, 2=right). I've decoded some of the flags (different from 0x6b)
but not the voltage/current formulas yet.

The MacOS version of the calls will give you decoded values for the
voltage, so we should be able to get a formula easily. They also give
some remaining time estimations, this will probably be more complex to
implement.

I suggest people interested use this tool to gather infos about their
batteries and the PMU behaviour with those 3 different commands. For
example, if the 0x6f command works on the 3400/2400 series, we can make a
new Batmon that works will all powerbooks.

The archive is at:

<ftp://ftp.linuxppc.org/development/users/benh/BatTest.sit>

-- 
           E-Mail: <mailto:bh40 at calva.net>
BenH.      Web   : <http://calvaweb.calvacom.fr/bh40/>




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