intel 6235 card

[Kurt H Maier <khm@sciops.net>]

Yo,

cinap got my wifi working (hopefully that wpa.diff will be merged soon)
but in the meantime it enabled me to test and get functioning another
intel wifi chip.  The thinkpad x250 comes with a 7265, which etheriwl.c
does not support... but I found a card that DOES work with etheriwl.c
and comes in an ngff package.  It is the Intel Advanced-N 6235 wifi 
card, Lenovo part number 04W3798, and the following patch makes it work
on 9front.  

There is probably a better way to do this, but this card appears to work
exactly like the iwn-6005 cards... with a different firmware.  So, I
just check the did and shove the firmware in.  

I am not a programmer.

khm




a/sys/src/9/pc/etheriwl.c:2199,2205 - b/sys/src/9/pc/etheriwl.c:2199,2208
            }
     
            if(ctlr->fw == nil){
    -           fw = readfirmware(fwname[ctlr->type]);
    +           if (ctlr->pdev->did == 0x088f)
    +               fw = readfirmware("iwn-6030");
    +           else
    +               fw = readfirmware(fwname[ctlr->type]);
                print("#l%d: firmware: %s, rev %ux, build %ud, size %ux+%ux+%ux+%ux+%ux\n",
                    edev->ctlrno,
                    fwname[ctlr->type],
a/sys/src/9/pc/etheriwl.c:2436,2441 - b/sys/src/9/pc/etheriwl.c:2439,2445
            case 0x0085:    /* Centrino Advanced-N 6205 */
            case 0x422b:    /* Centrino Ultimate-N 6300 variant 1 */
            case 0x4238:    /* Centrino Ultimate-N 6300 variant 2 */
    +       case 0x088f:    /* Centrino Advanced-N 6235 */
            case 0x08ae:    /* Centrino Wireless-N 100 */
            case 0x0083:    /* Centrino Wireless-N 1000 */
            case 0x0887:    /* Centrino Wireless-N 2230 */