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Implement a working write region function to speed up loading of the

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firmware. You can test this change by switching the "#if 1" statement
right above in the patched code to "#if 0" !

MFC after:	1 week
This commit is contained in:
Hans Petter Selasky 2013-11-06 15:32:37 +00:00
parent c67919895d
commit 415fd8a3dc
1 changed files with 25 additions and 6 deletions
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31
sys/dev/usb/wlan/if_run.c
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@ -1170,13 +1170,32 @@ run_write_region_1(struct run_softc *sc, uint16_t reg, const uint8_t *buf,
return (error);
#else
usb_device_request_t req;
int error = 0;
req.bmRequestType = UT_WRITE_VENDOR_DEVICE;
req.bRequest = RT2870_WRITE_REGION_1;
USETW(req.wValue, 0);
USETW(req.wIndex, reg);
USETW(req.wLength, len);
return (run_do_request(sc, &req, buf));
/*
* NOTE: It appears the WRITE_REGION_1 command cannot be
* passed a huge amount of data, which will crash the
* firmware. Limit amount of data passed to 64-bytes at a
* time:
*/
while (len > 0) {
int delta = 64;
if (delta > len)
delta = len;
req.bmRequestType = UT_WRITE_VENDOR_DEVICE;
req.bRequest = RT2870_WRITE_REGION_1;
USETW(req.wValue, 0);
USETW(req.wIndex, reg);
USETW(req.wLength, delta);
error = run_do_request(sc, &req, __DECONST(uint8_t *, buf));
if (error != 0)
break;
reg += delta;
buf += delta;
len -= delta;
}
return (error);
#endif
}