From: Vasanthakumar Thiagarajan <vasanth@xxxxxxxxxxx>
* Set rx buf size in register 0x60
* Set rxdp on the respective hw rx queue (HP and LP queues)
* Process rx descriptor
Signed-off-by: Vasanthakumar Thiagarajan <vasanth@xxxxxxxxxxx>
Signed-off-by: Felix Fietkau <nbd@xxxxxxxxxxx>
---
drivers/net/wireless/ath/ath9k/ar9003_mac.c | 95 +++++++++++++++++++++++++++
drivers/net/wireless/ath/ath9k/ar9003_mac.h | 18 +++++
drivers/net/wireless/ath/ath9k/mac.h | 2 +
drivers/net/wireless/ath/ath9k/reg.h | 6 ++
4 files changed, 121 insertions(+), 0 deletions(-)
diff --git a/drivers/net/wireless/ath/ath9k/ar9003_mac.c b/drivers/net/wireless/ath/ath9k/ar9003_mac.c
index ee84e64..2089006 100644
--- a/drivers/net/wireless/ath/ath9k/ar9003_mac.c
+++ b/drivers/net/wireless/ath/ath9k/ar9003_mac.c
@@ -26,3 +26,98 @@ void ar9003_hw_attach_mac_ops(struct ath_hw *hw)
ops->rx_enable = ar9003_hw_rx_enable;
}
+
+void ath9k_hw_set_rx_bufsize(struct ath_hw *ah, u16 buf_size)
+{
+ REG_WRITE(ah, AR_DATABUF_SIZE, buf_size & AR_DATABUF_SIZE_MASK);
+}
+EXPORT_SYMBOL(ath9k_hw_set_rx_bufsize);
+
+void ath9k_hw_addrxbuf_edma(struct ath_hw *ah, u32 rxdp,
+ enum ath9k_rx_qtype qtype)
+{
+ if (qtype == ATH9K_RX_QUEUE_HP)
+ REG_WRITE(ah, AR_HP_RXDP, rxdp);
+ else
+ REG_WRITE(ah, AR_LP_RXDP, rxdp);
+}
+EXPORT_SYMBOL(ath9k_hw_addrxbuf_edma);
+
+int ath9k_hw_process_rxdesc_edma(struct ath_hw *ah, struct ath_rx_status *rxs,
+ void *buf_addr)
+{
+ struct ar9003_rxs *rxsp = (struct ar9003_rxs *) buf_addr;
+ unsigned int phyerr;
+
+ /* TODO: byte swap on big endian for ar9300_10 */
+
+ if ((rxsp->status11 & AR_RxDone) == 0)
+ return -EINPROGRESS;
+
+ if (MS(rxsp->ds_info, AR_DescId) != 0x168c)
+ return -EINVAL;
+
+ if ((rxsp->ds_info & (AR_TxRxDesc | AR_CtrlStat)) != 0)
+ return -EINPROGRESS;
+
+ rxs->rs_status = 0;
+ rxs->rs_flags = 0;
+
+ rxs->rs_datalen = rxsp->status2 & AR_DataLen;
+ rxs->rs_tstamp = rxsp->status3;
+
+ /* XXX: Keycache */
+ rxs->rs_rssi = MS(rxsp->status5, AR_RxRSSICombined);
+ rxs->rs_rssi_ctl0 = MS(rxsp->status1, AR_RxRSSIAnt00);
+ rxs->rs_rssi_ctl1 = MS(rxsp->status1, AR_RxRSSIAnt01);
+ rxs->rs_rssi_ctl2 = MS(rxsp->status1, AR_RxRSSIAnt02);
+ rxs->rs_rssi_ext0 = MS(rxsp->status5, AR_RxRSSIAnt10);
+ rxs->rs_rssi_ext1 = MS(rxsp->status5, AR_RxRSSIAnt11);
+ rxs->rs_rssi_ext2 = MS(rxsp->status5, AR_RxRSSIAnt12);
+
+ if (rxsp->status11 & AR_RxKeyIdxValid)
+ rxs->rs_keyix = MS(rxsp->status11, AR_KeyIdx);
+ else
+ rxs->rs_keyix = ATH9K_RXKEYIX_INVALID;
+
+ rxs->rs_rate = MS(rxsp->status1, AR_RxRate);
+ rxs->rs_more = (rxsp->status2 & AR_RxMore) ? 1 : 0;
+
+ rxs->rs_isaggr = (rxsp->status11 & AR_RxAggr) ? 1 : 0;
+ rxs->rs_moreaggr = (rxsp->status11 & AR_RxMoreAggr) ? 1 : 0;
+ rxs->rs_antenna = (MS(rxsp->status4, AR_RxAntenna) & 0x7);
+ rxs->rs_flags = (rxsp->status4 & AR_GI) ? ATH9K_RX_GI : 0;
+ rxs->rs_flags |= (rxsp->status4 & AR_2040) ? ATH9K_RX_2040 : 0;
+
+ rxs->evm0 = rxsp->status6;
+ rxs->evm1 = rxsp->status7;
+ rxs->evm2 = rxsp->status8;
+ rxs->evm3 = rxsp->status9;
+ rxs->evm4 = (rxsp->status10 & 0xffff);
+
+ if (rxsp->status11 & AR_PreDelimCRCErr)
+ rxs->rs_flags |= ATH9K_RX_DELIM_CRC_PRE;
+
+ if (rxsp->status11 & AR_PostDelimCRCErr)
+ rxs->rs_flags |= ATH9K_RX_DELIM_CRC_POST;
+
+ if (rxsp->status11 & AR_DecryptBusyErr)
+ rxs->rs_flags |= ATH9K_RX_DECRYPT_BUSY;
+
+ if ((rxsp->status11 & AR_RxFrameOK) == 0) {
+ if (rxsp->status11 & AR_CRCErr) {
+ rxs->rs_status |= ATH9K_RXERR_CRC;
+ } else if (rxsp->status11 & AR_PHYErr) {
+ rxs->rs_status |= ATH9K_RXERR_PHY;
+ phyerr = MS(rxsp->status11, AR_PHYErrCode);
+ rxs->rs_phyerr = phyerr;
+ } else if (rxsp->status11 & AR_DecryptCRCErr) {
+ rxs->rs_status |= ATH9K_RXERR_DECRYPT;
+ } else if (rxsp->status11 & AR_MichaelErr) {
+ rxs->rs_status |= ATH9K_RXERR_MIC;
+ }
+ }
+
+ return 0;
+}
+EXPORT_SYMBOL(ath9k_hw_process_rxdesc_edma);
diff --git a/drivers/net/wireless/ath/ath9k/ar9003_mac.h b/drivers/net/wireless/ath/ath9k/ar9003_mac.h
index 2a9d80e..479dcd1 100644
--- a/drivers/net/wireless/ath/ath9k/ar9003_mac.h
+++ b/drivers/net/wireless/ath/ath9k/ar9003_mac.h
@@ -17,6 +17,17 @@
#ifndef AR9003_MAC_H
#define AR9003_MAC_H
+#define AR_DescId 0xffff0000
+#define AR_DescId_S 16
+#define AR_CtrlStat 0x00004000
+#define AR_TxRxDesc 0x00008000
+
+enum ath9k_rx_qtype {
+ ATH9K_RX_QUEUE_HP,
+ ATH9K_RX_QUEUE_LP,
+ ATH9K_RX_QUEUE_MAX,
+};
+
struct ar9003_rxs {
u32 ds_info;
u32 status1;
@@ -33,5 +44,12 @@ struct ar9003_rxs {
} __packed;
void ar9003_hw_attach_mac_ops(struct ath_hw *hw);
+void ath9k_hw_set_rx_bufsize(struct ath_hw *ah, u16 buf_size);
+void ath9k_hw_addrxbuf_edma(struct ath_hw *ah, u32 rxdp,
+ enum ath9k_rx_qtype qtype);
+
+int ath9k_hw_process_rxdesc_edma(struct ath_hw *ah,
+ struct ath_rx_status *rxs,
+ void *buf_addr);
#endif
diff --git a/drivers/net/wireless/ath/ath9k/mac.h b/drivers/net/wireless/ath/ath9k/mac.h
index 9e8500a..126a403 100644
--- a/drivers/net/wireless/ath/ath9k/mac.h
+++ b/drivers/net/wireless/ath/ath9k/mac.h
@@ -148,6 +148,8 @@ struct ath_rx_status {
u32 evm0;
u32 evm1;
u32 evm2;
+ u32 evm3;
+ u32 evm4;
};
struct ath_htc_rx_status {
diff --git a/drivers/net/wireless/ath/ath9k/reg.h b/drivers/net/wireless/ath/ath9k/reg.h
index d524891..bc48bc9 100644
--- a/drivers/net/wireless/ath/ath9k/reg.h
+++ b/drivers/net/wireless/ath/ath9k/reg.h
@@ -144,6 +144,9 @@
#define AR_MACMISC_MISC_OBS_BUS_MSB_S 15
#define AR_MACMISC_MISC_OBS_BUS_1 1
+#define AR_DATABUF_SIZE 0x0060
+#define AR_DATABUF_SIZE_MASK 0x00000FFF
+
#define AR_GTXTO 0x0064
#define AR_GTXTO_TIMEOUT_COUNTER 0x0000FFFF
#define AR_GTXTO_TIMEOUT_LIMIT 0xFFFF0000
@@ -160,6 +163,9 @@
#define AR_CST_TIMEOUT_LIMIT 0xFFFF0000
#define AR_CST_TIMEOUT_LIMIT_S 16
+#define AR_HP_RXDP 0x0074
+#define AR_LP_RXDP 0x0078
+
#define AR_ISR 0x0080
#define AR_ISR_RXOK 0x00000001
#define AR_ISR_RXDESC 0x00000002
--
1.6.3.3
--
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