diff options
Diffstat (limited to 'drivers/net/wireless/ath/ath9k/htc_drv_init.c')
| -rw-r--r-- | drivers/net/wireless/ath/ath9k/htc_drv_init.c | 104 |
1 files changed, 100 insertions, 4 deletions
diff --git a/drivers/net/wireless/ath/ath9k/htc_drv_init.c b/drivers/net/wireless/ath/ath9k/htc_drv_init.c index aed53573c547..a86189629d92 100644 --- a/drivers/net/wireless/ath/ath9k/htc_drv_init.c +++ b/drivers/net/wireless/ath/ath9k/htc_drv_init.c @@ -213,7 +213,7 @@ static int ath9k_reg_notifier(struct wiphy *wiphy, ath9k_hw_regulatory(priv->ah)); } -static unsigned int ath9k_ioread32(void *hw_priv, u32 reg_offset) +static unsigned int ath9k_regread(void *hw_priv, u32 reg_offset) { struct ath_hw *ah = (struct ath_hw *) hw_priv; struct ath_common *common = ath9k_hw_common(ah); @@ -235,7 +235,7 @@ static unsigned int ath9k_ioread32(void *hw_priv, u32 reg_offset) return be32_to_cpu(val); } -static void ath9k_iowrite32(void *hw_priv, u32 val, u32 reg_offset) +static void ath9k_regwrite_single(void *hw_priv, u32 val, u32 reg_offset) { struct ath_hw *ah = (struct ath_hw *) hw_priv; struct ath_common *common = ath9k_hw_common(ah); @@ -257,9 +257,105 @@ static void ath9k_iowrite32(void *hw_priv, u32 val, u32 reg_offset) } } +static void ath9k_regwrite_buffer(void *hw_priv, u32 val, u32 reg_offset) +{ + struct ath_hw *ah = (struct ath_hw *) hw_priv; + struct ath_common *common = ath9k_hw_common(ah); + struct ath9k_htc_priv *priv = (struct ath9k_htc_priv *) common->priv; + u32 rsp_status; + int r; + + mutex_lock(&priv->wmi->multi_write_mutex); + + /* Store the register/value */ + priv->wmi->multi_write[priv->wmi->multi_write_idx].reg = + cpu_to_be32(reg_offset); + priv->wmi->multi_write[priv->wmi->multi_write_idx].val = + cpu_to_be32(val); + + priv->wmi->multi_write_idx++; + + /* If the buffer is full, send it out. */ + if (priv->wmi->multi_write_idx == MAX_CMD_NUMBER) { + r = ath9k_wmi_cmd(priv->wmi, WMI_REG_WRITE_CMDID, + (u8 *) &priv->wmi->multi_write, + sizeof(struct register_write) * priv->wmi->multi_write_idx, + (u8 *) &rsp_status, sizeof(rsp_status), + 100); + if (unlikely(r)) { + ath_print(common, ATH_DBG_WMI, + "REGISTER WRITE FAILED, multi len: %d\n", + priv->wmi->multi_write_idx); + } + priv->wmi->multi_write_idx = 0; + } + + mutex_unlock(&priv->wmi->multi_write_mutex); +} + +static void ath9k_regwrite(void *hw_priv, u32 val, u32 reg_offset) +{ + struct ath_hw *ah = (struct ath_hw *) hw_priv; + struct ath_common *common = ath9k_hw_common(ah); + struct ath9k_htc_priv *priv = (struct ath9k_htc_priv *) common->priv; + + if (atomic_read(&priv->wmi->mwrite_cnt)) + ath9k_regwrite_buffer(hw_priv, val, reg_offset); + else + ath9k_regwrite_single(hw_priv, val, reg_offset); +} + +static void ath9k_enable_regwrite_buffer(void *hw_priv) +{ + struct ath_hw *ah = (struct ath_hw *) hw_priv; + struct ath_common *common = ath9k_hw_common(ah); + struct ath9k_htc_priv *priv = (struct ath9k_htc_priv *) common->priv; + + atomic_inc(&priv->wmi->mwrite_cnt); +} + +static void ath9k_disable_regwrite_buffer(void *hw_priv) +{ + struct ath_hw *ah = (struct ath_hw *) hw_priv; + struct ath_common *common = ath9k_hw_common(ah); + struct ath9k_htc_priv *priv = (struct ath9k_htc_priv *) common->priv; + + atomic_dec(&priv->wmi->mwrite_cnt); +} + +static void ath9k_regwrite_flush(void *hw_priv) +{ + struct ath_hw *ah = (struct ath_hw *) hw_priv; + struct ath_common *common = ath9k_hw_common(ah); + struct ath9k_htc_priv *priv = (struct ath9k_htc_priv *) common->priv; + u32 rsp_status; + int r; + + mutex_lock(&priv->wmi->multi_write_mutex); + + if (priv->wmi->multi_write_idx) { + r = ath9k_wmi_cmd(priv->wmi, WMI_REG_WRITE_CMDID, + (u8 *) &priv->wmi->multi_write, + sizeof(struct register_write) * priv->wmi->multi_write_idx, + (u8 *) &rsp_status, sizeof(rsp_status), + 100); + if (unlikely(r)) { + ath_print(common, ATH_DBG_WMI, + "REGISTER WRITE FAILED, multi len: %d\n", + priv->wmi->multi_write_idx); + } + priv->wmi->multi_write_idx = 0; + } + + mutex_unlock(&priv->wmi->multi_write_mutex); +} + static const struct ath_ops ath9k_common_ops = { - .read = ath9k_ioread32, - .write = ath9k_iowrite32, + .read = ath9k_regread, + .write = ath9k_regwrite, + .enable_write_buffer = ath9k_enable_regwrite_buffer, + .disable_write_buffer = ath9k_disable_regwrite_buffer, + .write_flush = ath9k_regwrite_flush, }; static void ath_usb_read_cachesize(struct ath_common *common, int *csz) |