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qcacmn: Get NSS info from SS bitmap

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Get NSS info from a the MIMO SS bitmap within msdu_start info

Change-Id: I794b093783b5f1ffc7faf335da84cbc07375d520
CRs-Fixed: 2215660
This commit is contained in:
psimha
2018-04-09 17:48:15 -07:00
committed by nshrivas
parent 56023f5649
commit 0e8a2c6558
2 changed files with 30 additions and 1 deletions
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15
dp/wifi3.0/hal_rx.h
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@@ -1532,10 +1532,23 @@ hal_rx_msdu_start_nss_get(uint8_t *buf)
return nss;
}
#else
#define HAL_RX_MSDU_START_MIMO_SS_BITMAP(_rx_msdu_start) \
(_HAL_MS((*_OFFSET_TO_WORD_PTR((_rx_msdu_start),\
RX_MSDU_START_5_MIMO_SS_BITMAP_OFFSET)), \
RX_MSDU_START_5_MIMO_SS_BITMAP_MASK, \
RX_MSDU_START_5_MIMO_SS_BITMAP_LSB))
static inline uint32_t
hal_rx_msdu_start_nss_get(uint8_t *buf)
{
return 0;
struct rx_pkt_tlvs *pkt_tlvs = (struct rx_pkt_tlvs *)buf;
struct rx_msdu_start *msdu_start =
&pkt_tlvs->msdu_start_tlv.rx_msdu_start;
uint8_t mimo_ss_bitmap;
mimo_ss_bitmap = HAL_RX_MSDU_START_MIMO_SS_BITMAP(msdu_start);
return qdf_get_hweight8(mimo_ss_bitmap);
}
#endif

16
qdf/inc/qdf_util.h
View File

@@ -576,6 +576,22 @@ int qdf_get_cpu(void)
return __qdf_get_cpu();
}
/**
* qdf_get_hweight8() - count num of 1's in bitmap
* @value: input bitmap
*
* Count num of 1's set in the bitmap
*
* Return: num of 1's
*/
static inline
unsigned int qdf_get_hweight8(unsigned int w)
{
unsigned int res = w - ((w >> 1) & 0x55);
res = (res & 0x33) + ((res >> 2) & 0x33);
return (res + (res >> 4)) & 0x0F;
}
/**
* qdf_device_init_wakeup() - allow a device to wake up the aps system
* @qdf_dev: the qdf device context