Jouni Malinen <jouni@xxxxxxxxxxxxxx> writes:
> From: Karthikeyan Periyasamy <periyasa@xxxxxxxxxxxxxx>
>
> In IPQ8074, actual FFT bin size is two bytes but hardware reports it
> with extra pad size of two bytes for each FFT bin. So finally each FFT
> bin advertise as four bytes size in the collected data. This FFT pad is
> not advertised in IPQ6018 platform. To accommodate this different
> behavior across the platforms, introduce the hw param fft_pad_sz and use
> it in spectral process. Also group all the spectral params under the new
> structure in hw param structure for scalable in future.
>
> Tested-on: IPQ8074 hw2.0 AHB WLAN.HK.2.4.0.1-01492-QCAHKSWPL_SILICONZ-1
> Tested-on: IPQ6018 hw1.0 AHB WLAN.HK.2.4.0.1-00330-QCAHKSWPL_SILICONZ-1
>
> Signed-off-by: Karthikeyan Periyasamy <periyasa@xxxxxxxxxxxxxx>
> Signed-off-by: Jouni Malinen <jouni@xxxxxxxxxxxxxx>
> ---
> drivers/net/wireless/ath/ath11k/core.c | 27 +++++++++++++++-------
> drivers/net/wireless/ath/ath11k/hw.h | 6 ++++-
> drivers/net/wireless/ath/ath11k/spectral.c | 13 +++++------
> 3 files changed, 30 insertions(+), 16 deletions(-)
>
> diff --git a/drivers/net/wireless/ath/ath11k/core.c b/drivers/net/wireless/ath/ath11k/core.c
> index 3179495cb3c9..2a81a544b6a9 100644
> --- a/drivers/net/wireless/ath/ath11k/core.c
> +++ b/drivers/net/wireless/ath/ath11k/core.c
> @@ -59,8 +59,13 @@ static const struct ath11k_hw_params ath11k_hw_params[] = {
> .vdev_start_delay = false,
> .htt_peer_map_v2 = true,
> .tcl_0_only = false,
> - .spectral_fft_sz = 2,
> -
> + .spectral = {
> + .fft_sz = 2,
> + /* HW bug, expected BIN size is 2 bytes but HW report as 4 bytes.
> + * so added pad size as 2 bytes to compensate the BIN size
> + */
> + .fft_pad_sz = 2,
> + },
> .interface_modes = BIT(NL80211_IFTYPE_STATION) |
> BIT(NL80211_IFTYPE_AP) |
> BIT(NL80211_IFTYPE_MESH_POINT),
> @@ -101,8 +106,10 @@ static const struct ath11k_hw_params ath11k_hw_params[] = {
> .vdev_start_delay = false,
> .htt_peer_map_v2 = true,
> .tcl_0_only = false,
> - .spectral_fft_sz = 4,
> -
> + .spectral = {
> + .fft_sz = 4,
> + .fft_pad_sz = 0,
> + },
> .interface_modes = BIT(NL80211_IFTYPE_STATION) |
> BIT(NL80211_IFTYPE_AP) |
> BIT(NL80211_IFTYPE_MESH_POINT),
> @@ -143,8 +150,10 @@ static const struct ath11k_hw_params ath11k_hw_params[] = {
> .vdev_start_delay = true,
> .htt_peer_map_v2 = false,
> .tcl_0_only = true,
> - .spectral_fft_sz = 0,
> -
> + .spectral = {
> + .fft_sz = 0,
> + .fft_pad_sz = 0,
> + },
> .interface_modes = BIT(NL80211_IFTYPE_STATION) |
> BIT(NL80211_IFTYPE_AP),
> .supports_monitor = false,
> @@ -223,8 +232,10 @@ static const struct ath11k_hw_params ath11k_hw_params[] = {
> .vdev_start_delay = true,
> .htt_peer_map_v2 = false,
> .tcl_0_only = true,
> - .spectral_fft_sz = 0,
> -
> + .spectral = {
> + .fft_sz = 0,
> + .fft_pad_sz = 0,
> + },
> .interface_modes = BIT(NL80211_IFTYPE_STATION) |
> BIT(NL80211_IFTYPE_AP),
> .supports_monitor = false,
QCN9074 hw1.0 didn't have an entry. I suspect what happened was that
support for wcn6855 was added between writing the patch and me
committing wcn6855 patches, which confused git.
I changed it so that both qcn9074 and wcn6855 have this:
.spectral = {
.fft_sz = 0,
.fft_pad_sz = 0,
},
--
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