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ath10k: add support for qca6174 Rx descriptors 

The QCA6174 chip has an extra 4 bytes in
rx_ppdu_end structure which is used in htt_rx_desc
and HTT Rx ring offset setup. This is necessary
for correct Rx for QCA6174 (otherwise Rx
descriptors are overwritten and corrupted).

This means QCA988X will have an extra 4 byte
padding in Rx descriptor layout which is harmless.

Signed-off-by: Michal Kazior <michal.kazior@tieto.com>
Signed-off-by: Kalle Valo <kvalo@qca.qualcomm.com>
This commit is contained in:
Michal Kazior 2015-01-24 12:14:48 +02:00 committed by Kalle Valo
parent 1a7fecb766
commit 3ec79e3a75
2 changed files with 25 additions and 2 deletions
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2
drivers/net/wireless/ath/ath10k/htt_rx.c
View File

@ -813,7 +813,7 @@ static void ath10k_htt_rx_h_mactime(struct ath10k *ar,
*
* FIXME: Can we get/compute 64bit TSF?
*/
status->mactime = __le32_to_cpu(rxd->ppdu_end.tsf_timestamp);
status->mactime = __le32_to_cpu(rxd->ppdu_end.common.tsf_timestamp);
status->flag |= RX_FLAG_MACTIME_END;
}

25
drivers/net/wireless/ath/ath10k/rx_desc.h
View File

@ -850,7 +850,7 @@ struct rx_ppdu_start {
#define RX_PPDU_END_INFO1_PPDU_DONE (1 << 15)
struct rx_ppdu_end {
struct rx_ppdu_end_common {
__le32 evm_p0;
__le32 evm_p1;
__le32 evm_p2;
@ -873,10 +873,33 @@ struct rx_ppdu_end {
u8 phy_err_code;
__le16 flags; /* %RX_PPDU_END_FLAGS_ */
__le32 info0; /* %RX_PPDU_END_INFO0_ */
} __packed;
struct rx_ppdu_end_qca988x {
__le16 bb_length;
__le16 info1; /* %RX_PPDU_END_INFO1_ */
} __packed;
#define RX_PPDU_END_RTT_CORRELATION_VALUE_MASK 0x00ffffff
#define RX_PPDU_END_RTT_CORRELATION_VALUE_LSB 0
#define RX_PPDU_END_RTT_UNUSED_MASK 0x7f000000
#define RX_PPDU_END_RTT_UNUSED_LSB 24
#define RX_PPDU_END_RTT_NORMAL_MODE BIT(31)
struct rx_ppdu_end_qca6174 {
__le32 rtt; /* %RX_PPDU_END_RTT_ */
__le16 bb_length;
__le16 info1; /* %RX_PPDU_END_INFO1_ */
} __packed;
struct rx_ppdu_end {
struct rx_ppdu_end_common common;
union {
struct rx_ppdu_end_qca988x qca988x;
struct rx_ppdu_end_qca6174 qca6174;
} __packed;
} __packed;
/*
* evm_p0
* EVM for pilot 0. Contain EVM for streams: 0, 1, 2 and 3.