diff options
Diffstat (limited to 'drivers/net/wireless/broadcom')
| -rw-r--r-- | drivers/net/wireless/broadcom/brcm80211/brcmfmac/sdio.c | 19 |
1 files changed, 16 insertions, 3 deletions
diff --git a/drivers/net/wireless/broadcom/brcm80211/brcmfmac/sdio.c b/drivers/net/wireless/broadcom/brcm80211/brcmfmac/sdio.c index bc02168ebb53..1e66535e23f5 100644 --- a/drivers/net/wireless/broadcom/brcm80211/brcmfmac/sdio.c +++ b/drivers/net/wireless/broadcom/brcm80211/brcmfmac/sdio.c @@ -648,6 +648,8 @@ static const struct brcmf_firmware_mapping brcmf_sdio_fwnames[] = { BRCMF_FW_ENTRY(CY_CC_43012_CHIP_ID, 0xFFFFFFFF, 43012) }; +#define TXCTL_CREDITS 2 + static void pkt_align(struct sk_buff *p, int len, int align) { uint datalign; @@ -661,8 +663,16 @@ static void pkt_align(struct sk_buff *p, int len, int align) /* To check if there's window offered */ static bool data_ok(struct brcmf_sdio *bus) { - return (u8)(bus->tx_max - bus->tx_seq) != 0 && - ((u8)(bus->tx_max - bus->tx_seq) & 0x80) == 0; + /* Reserve TXCTL_CREDITS credits for txctl */ + return (bus->tx_max - bus->tx_seq) > TXCTL_CREDITS && + ((bus->tx_max - bus->tx_seq) & 0x80) == 0; +} + +/* To check if there's window offered */ +static bool txctl_ok(struct brcmf_sdio *bus) +{ + return (bus->tx_max - bus->tx_seq) != 0 && + ((bus->tx_max - bus->tx_seq) & 0x80) == 0; } static int @@ -2668,7 +2678,7 @@ static void brcmf_sdio_dpc(struct brcmf_sdio *bus) brcmf_sdio_clrintr(bus); if (bus->ctrl_frame_stat && (bus->clkstate == CLK_AVAIL) && - data_ok(bus)) { + txctl_ok(bus)) { sdio_claim_host(bus->sdiodev->func1); if (bus->ctrl_frame_stat) { err = brcmf_sdio_tx_ctrlframe(bus, bus->ctrl_frame_buf, @@ -2676,6 +2686,9 @@ static void brcmf_sdio_dpc(struct brcmf_sdio *bus) bus->ctrl_frame_err = err; wmb(); bus->ctrl_frame_stat = false; + if (err) + brcmf_err("sdio ctrlframe tx failed err=%d\n", + err); } sdio_release_host(bus->sdiodev->func1); brcmf_sdio_wait_event_wakeup(bus); |