diff options
| author | Damien Bergamini <damien@cvs.openbsd.org> | 2009-11-25 17:54:38 +0000 |
|---|---|---|
| committer | Damien Bergamini <damien@cvs.openbsd.org> | 2009-11-25 17:54:38 +0000 |
| commit | 7fd637a9cffdf04e9892b25d1ca5a75e1cc0b636 (patch) | |
| tree | c75ffe5ad45a9b242e0df04c20ab7ad6f9e4061c /sys/dev/ic | |
| parent | 74b769daab68419f740f12dd4a4d345696354046 (diff) | |
single-stream parts (AR9285) have a hardware bug that limits the
usable size of the PCU TX FIFO to 2KB even though the hardware
has 4KB.
Diffstat (limited to 'sys/dev/ic')
| -rw-r--r-- | sys/dev/ic/athn.c | 20 |
1 files changed, 12 insertions, 8 deletions
diff --git a/sys/dev/ic/athn.c b/sys/dev/ic/athn.c index 845ba267460..1f7b616b47f 100644 --- a/sys/dev/ic/athn.c +++ b/sys/dev/ic/athn.c @@ -1,4 +1,4 @@ -/* $OpenBSD: athn.c,v 1.18 2009/11/23 19:54:54 damien Exp $ */ +/* $OpenBSD: athn.c,v 1.19 2009/11/25 17:54:37 damien Exp $ */ /*- * Copyright (c) 2009 Damien Bergamini <damien.bergamini@free.fr> @@ -267,7 +267,7 @@ athn_attach(struct athn_softc *sc) /* Get polarity of hardware radio switch. */ if (base->rfSilent & AR_EEP_RFSILENT_POLARITY) sc->flags |= ATHN_FLAG_RFSILENT_REVERSED; - DPRINTFN(2, ("Found RF switch connected to GPIO pin %d\n", + DPRINTF(("Found RF switch connected to GPIO pin %d\n", sc->rfsilent_pin)); } @@ -2796,13 +2796,17 @@ athn_init_dma(struct athn_softc *sc) void athn_inc_tx_trigger_level(struct athn_softc *sc) { - uint32_t reg; + uint32_t reg, ftrig; - /* XXX Disable interrupts? */ reg = AR_READ(sc, AR_TXCFG); - if ((reg & 0x3f0) == 0x3f0) /* Already at max. */ - return; - reg += 0x10; /* Increment Tx trigger level by 1. */ + ftrig = MS(reg, AR_TXCFG_FTRIG); + /* + * NB: The AR9285 and all single-stream parts have an issue that + * limits the size of the PCU Tx FIFO to 2KB instead of 4KB. + */ + if (ftrig == AR_SREV_9285(sc) ? 0x1f : 0x3f) + return; /* Already at max. */ + reg = RW(reg, AR_TXCFG_FTRIG, ftrig + 1); AR_WRITE(sc, AR_TXCFG, reg); } @@ -4345,7 +4349,7 @@ athn_newstate(struct ieee80211com *ic, enum ieee80211_state nstate, int arg) int error; timeout_del(&sc->calib_to); - if (ic->ic_state != IEEE80211_S_SCAN) + if (nstate != IEEE80211_S_SCAN) athn_gpio_write(sc, sc->led_pin, 1); switch (nstate) { |