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qcacmn: Add radiotap_num_to_freq() for correct Channel frequency

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Function added to convert given channel number to correct
channel frequency using the Channel center frequency and
populate it correctly inside the radiotap header

Change-Id: Iea2a9ee7d496b2aa0dbf8d6741a32d2dbfa3503d
CRs-fixed: 2637424
This commit is contained in:
Ramanathan Choodamani
2020-03-12 13:49:55 -07:00
committed by nshrivas
parent 4b45241915
commit 1f9ff8a62c
1 changed files with 58 additions and 0 deletions
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58
hal/wifi3.0/hal_generic_api.h
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@@ -465,6 +465,57 @@ static inline void hal_get_radiotap_he_gi_ltf(uint16_t *he_gi, uint16_t *he_ltf)
}
}
/* channel number to freq conversion */
#define CHANNEL_NUM_14 14
#define CHANNEL_NUM_15 15
#define CHANNEL_NUM_27 27
#define CHANNEL_NUM_35 35
#define CHANNEL_NUM_182 182
#define CHANNEL_NUM_197 197
#define CHANNEL_FREQ_2484 2484
#define CHANNEL_FREQ_2407 2407
#define CHANNEL_FREQ_2512 2512
#define CHANNEL_FREQ_5000 5000
#define CHANNEL_FREQ_5940 5940
#define CHANNEL_FREQ_4000 4000
#define CHANNEL_FREQ_5150 5150
#define FREQ_MULTIPLIER_CONST_5MHZ 5
#define FREQ_MULTIPLIER_CONST_20MHZ 20
/**
* hal_rx_radiotap_num_to_freq() - Get frequency from chan number
* @chan_num - Input channel number
* @center_freq - Input Channel Center frequency
*
* Return - Channel frequency in Mhz
*/
static uint16_t
hal_rx_radiotap_num_to_freq(uint16_t chan_num, qdf_freq_t center_freq)
{
if (center_freq < CHANNEL_FREQ_5940) {
if (chan_num == CHANNEL_NUM_14)
return CHANNEL_FREQ_2484;
if (chan_num < CHANNEL_NUM_14)
return CHANNEL_FREQ_2407 +
(chan_num * FREQ_MULTIPLIER_CONST_5MHZ);
if (chan_num < CHANNEL_NUM_27)
return CHANNEL_FREQ_2512 +
((chan_num - CHANNEL_NUM_15) *
FREQ_MULTIPLIER_CONST_20MHZ);
if (chan_num > CHANNEL_NUM_182 &&
chan_num < CHANNEL_NUM_197)
return ((chan_num * FREQ_MULTIPLIER_CONST_5MHZ) +
CHANNEL_FREQ_4000);
return CHANNEL_FREQ_5000 +
(chan_num * FREQ_MULTIPLIER_CONST_5MHZ);
} else {
return CHANNEL_FREQ_5940 +
(chan_num * FREQ_MULTIPLIER_CONST_5MHZ);
}
}
/**
* hal_rx_status_get_tlv_info() - process receive info TLV
* @rx_tlv_hdr: pointer to TLV header
@@ -515,6 +566,13 @@ hal_rx_status_get_tlv_info_generic(void *rx_tlv_hdr, void *ppduinfo,
ppdu_info->rx_status.chan_freq =
(HAL_RX_GET(rx_tlv, RX_PPDU_START_1,
SW_PHY_META_DATA) & 0xFFFF0000)>>16;
if (ppdu_info->rx_status.chan_num &&
ppdu_info->rx_status.chan_freq) {
ppdu_info->rx_status.chan_freq =
hal_rx_radiotap_num_to_freq(
ppdu_info->rx_status.chan_num,
ppdu_info->rx_status.chan_freq);
}
ppdu_info->com_info.ppdu_timestamp =
HAL_RX_GET(rx_tlv, RX_PPDU_START_2,
PPDU_START_TIMESTAMP);