diff options
Diffstat (limited to 'drivers/net/wireless/b43/main.c')
| -rw-r--r-- | drivers/net/wireless/b43/main.c | 95 |
1 files changed, 54 insertions, 41 deletions
diff --git a/drivers/net/wireless/b43/main.c b/drivers/net/wireless/b43/main.c index c98337b..ec28a6e 100644 --- a/drivers/net/wireless/b43/main.c +++ b/drivers/net/wireless/b43/main.c @@ -1448,6 +1448,53 @@ static void b43_write_probe_resp_template(struct b43_wldev *dev, kfree(probe_resp_data); } +static void handle_irq_beacon(struct b43_wldev *dev) +{ + struct b43_wl *wl = dev->wl; + u32 cmd, beacon0_valid, beacon1_valid; + + if (!b43_is_mode(wl, IEEE80211_IF_TYPE_AP)) + return; + + /* This is the bottom half of the asynchronous beacon update. */ + + /* Ignore interrupt in the future. */ + dev->irq_savedstate &= ~B43_IRQ_BEACON; + + cmd = b43_read32(dev, B43_MMIO_MACCMD); + beacon0_valid = (cmd & B43_MACCMD_BEACON0_VALID); + beacon1_valid = (cmd & B43_MACCMD_BEACON1_VALID); + + /* Schedule interrupt manually, if busy. */ + if (beacon0_valid && beacon1_valid) { + b43_write32(dev, B43_MMIO_GEN_IRQ_REASON, B43_IRQ_BEACON); + dev->irq_savedstate |= B43_IRQ_BEACON; + return; + } + + if (!beacon0_valid) { + if (!wl->beacon0_uploaded) { + b43_write_beacon_template(dev, 0x68, 0x18, + B43_CCK_RATE_1MB); + b43_write_probe_resp_template(dev, 0x268, 0x4A, + &__b43_ratetable[3]); + wl->beacon0_uploaded = 1; + } + cmd = b43_read32(dev, B43_MMIO_MACCMD); + cmd |= B43_MACCMD_BEACON0_VALID; + b43_write32(dev, B43_MMIO_MACCMD, cmd); + } else if (!beacon1_valid) { + if (!wl->beacon1_uploaded) { + b43_write_beacon_template(dev, 0x468, 0x1A, + B43_CCK_RATE_1MB); + wl->beacon1_uploaded = 1; + } + cmd = b43_read32(dev, B43_MMIO_MACCMD); + cmd |= B43_MACCMD_BEACON1_VALID; + b43_write32(dev, B43_MMIO_MACCMD, cmd); + } +} + static void b43_beacon_update_trigger_work(struct work_struct *work) { struct b43_wl *wl = container_of(work, struct b43_wl, @@ -1457,13 +1504,14 @@ static void b43_beacon_update_trigger_work(struct work_struct *work) mutex_lock(&wl->mutex); dev = wl->current_dev; if (likely(dev && (b43_status(dev) >= B43_STAT_INITIALIZED))) { - /* Force the microcode to trigger the - * beacon update bottom-half IRQ. */ spin_lock_irq(&wl->irq_lock); - b43_write32(dev, B43_MMIO_MACCMD, - b43_read32(dev, B43_MMIO_MACCMD) - | B43_MACCMD_BEACON0_VALID - | B43_MACCMD_BEACON1_VALID); + /* update beacon right away or defer to irq */ + dev->irq_savedstate = b43_read32(dev, B43_MMIO_GEN_IRQ_MASK); + handle_irq_beacon(dev); + /* The handler might have updated the IRQ mask. */ + b43_write32(dev, B43_MMIO_GEN_IRQ_MASK, + dev->irq_savedstate); + mmiowb(); spin_unlock_irq(&wl->irq_lock); } mutex_unlock(&wl->mutex); @@ -1520,41 +1568,6 @@ static void b43_set_beacon_int(struct b43_wldev *dev, u16 beacon_int) b43dbg(dev->wl, "Set beacon interval to %u\n", beacon_int); } -static void handle_irq_beacon(struct b43_wldev *dev) -{ - struct b43_wl *wl = dev->wl; - u32 cmd, beacon0_valid, beacon1_valid; - - if (!b43_is_mode(wl, IEEE80211_IF_TYPE_AP)) - return; - - /* This is the bottom half of the asynchronous beacon update. */ - - cmd = b43_read32(dev, B43_MMIO_MACCMD); - beacon0_valid = (cmd & B43_MACCMD_BEACON0_VALID); - beacon1_valid = (cmd & B43_MACCMD_BEACON1_VALID); - cmd &= ~(B43_MACCMD_BEACON0_VALID | B43_MACCMD_BEACON1_VALID); - - if (!beacon0_valid) { - if (!wl->beacon0_uploaded) { - b43_write_beacon_template(dev, 0x68, 0x18, - B43_CCK_RATE_1MB); - b43_write_probe_resp_template(dev, 0x268, 0x4A, - &__b43_ratetable[3]); - wl->beacon0_uploaded = 1; - } - cmd |= B43_MACCMD_BEACON0_VALID; - } else if (!beacon1_valid) { - if (!wl->beacon1_uploaded) { - b43_write_beacon_template(dev, 0x468, 0x1A, - B43_CCK_RATE_1MB); - wl->beacon1_uploaded = 1; - } - cmd |= B43_MACCMD_BEACON1_VALID; - } - b43_write32(dev, B43_MMIO_MACCMD, cmd); -} - static void handle_irq_ucode_debug(struct b43_wldev *dev) { //TODO |