W dniu 18 lipca 2011 22:41 użytkownik Michael Büsch <[email protected]> napisał: > On Mon, 18 Jul 2011 22:14:50 +0200 > Rafał Miłecki <[email protected]> wrote: > >> When using DMA on one of my BCM4321s and BCM43224 or BCM43225 I don't >> get a single RX IRQ. >> >> Doing scanning requests sends TX packets to the hardware, and the >> ucode generates IRQs for confirming transmitted packets. RX does not >> seem to work however. I expected to see "native" beacons, or response >> to the scanning request. >> >> Do you have idea what may be wrong, where should I look at? > > Is wl still using the same dma engine for > RX as older versions did? (what was it? the first?)
Yes. That's what wl does: 1) Disabling DMA engines (RX part) write32 0xfaafc220 <- 0x00000000 read32 0xfaafc230 -> 0x00000000 2) Enabling DMA engines (RX part) read32 0xfaafc220 -> 0x00000040 write32 0xfaafc220 <- 0x0000084d CTL: [38 << 1 (OFFSET) | 0x1 (EN) | 0x800 (PARITY)] write32 0xfaafc228 <- 0x18948000 LO: [lo addr & ~routing_bits] write32 0xfaafc22c <- 0x80000000 HI: [routing & ~ROUT_MASK | routing] (improved) b43 does: write32 0xfaafc220 <- 0x0000084d CTL write32 0xfaafc228 <- 0x17b70000 LO write32 0xfaafc22c <- 0x80000000 HI write32 0xfaafc224 <- 0x00000400 STOP IDX -- Rafał _______________________________________________ b43-dev mailing list [email protected] http://lists.infradead.org/mailman/listinfo/b43-dev
