[PATCH] orinoco: further comment cleanup in the PCI drivers
Signed-off-by: Pavel Roskin <proski@gnu.org> Signed-off-by: John W. Linville <linville@tuxdriver.com>
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John W. Linville
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@@ -3,7 +3,7 @@
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* Driver for Prism II devices which would usually be driven by orinoco_cs,
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* but are connected to the PCI bus by a PLX9052.
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*
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* Current maintainers (as of 29 September 2003) are:
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* Current maintainers are:
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* Pavel Roskin <proski AT gnu.org>
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* and David Gibson <hermes AT gibson.dropbear.id.au>
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*
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@@ -30,38 +30,18 @@
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* other provisions required by the GPL. If you do not delete the
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* provisions above, a recipient may use your version of this file
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* under either the MPL or the GPL.
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* Caution: this is experimental and probably buggy. For success and
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* failure reports for different cards and adaptors, see
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* orinoco_plx_id_table near the end of the file. If you have a
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* card we don't have the PCI id for, and looks like it should work,
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* drop me mail with the id and "it works"/"it doesn't work".
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*
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* Note: if everything gets detected fine but it doesn't actually send
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* or receive packets, your first port of call should probably be to
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* try newer firmware in the card. Especially if you're doing Ad-Hoc
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* modes.
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*
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* The actual driving is done by orinoco.c, this is just resource
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* allocation stuff. The explanation below is courtesy of Ryan Niemi
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* on the linux-wlan-ng list at
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* http://archives.neohapsis.com/archives/dev/linux-wlan/2001-q1/0026.html
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*
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* The PLX9052-based cards (WL11000 and several others) are a
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* different beast than the usual PCMCIA-based PRISM2 configuration
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* expected by wlan-ng. Here's the general details on how the WL11000
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* PCI adapter works:
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* Here's the general details on how the PLX9052 adapter works:
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*
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* - Two PCI I/O address spaces, one 0x80 long which contains the
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* PLX9052 registers, and one that's 0x40 long mapped to the PCMCIA
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* slot I/O address space.
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*
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* - One PCI memory address space, mapped to the PCMCIA memory space
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* - One PCI memory address space, mapped to the PCMCIA attribute space
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* (containing the CIS).
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*
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* After identifying the I/O and memory space, you can read through
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* the memory space to confirm the CIS's device ID or manufacturer ID
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* to make sure it's the expected card. qKeep in mind that the PCMCIA
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* Using the later, you can read through the CIS data to make sure the
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* card is compatible with the driver. Keep in mind that the PCMCIA
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* spec specifies the CIS as the lower 8 bits of each word read from
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* the CIS, so to read the bytes of the CIS, read every other byte
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* (0,2,4,...). Passing that test, you need to enable the I/O address
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@@ -71,7 +51,7 @@
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* within the PCI memory space. Write 0x41 to the COR register to
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* enable I/O mode and to select level triggered interrupts. To
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* confirm you actually succeeded, read the COR register back and make
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* sure it actually got set to 0x41, incase you have an unexpected
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* sure it actually got set to 0x41, in case you have an unexpected
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* card inserted.
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*
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* Following that, you can treat the second PCI I/O address space (the
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@@ -101,16 +81,6 @@
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* that, I've hot-swapped a number of times during debugging and
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* driver development for various reasons (stuck WAIT# line after the
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* radio card's firmware locks up).
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*
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* Hope this is enough info for someone to add PLX9052 support to the
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* wlan-ng card. In the case of the WL11000, the PCI ID's are
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* 0x1639/0x0200, with matching subsystem ID's. Other PLX9052-based
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* manufacturers other than Eumitcom (or on cards other than the
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* WL11000) may have different PCI ID's.
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*
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* If anyone needs any more specific info, let me know. I haven't had
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* time to implement support myself yet, and with the way things are
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* going, might not have time for a while..
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*/
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#define DRIVER_NAME "orinoco_plx"
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