[PATCH v5 2/2] wifi: ath12k: Add Support to Calculate and Display TPC Values

[Aditya Kumar Singh]

On 1/28/25 16:40, Roopni Devanathan wrote:
> From: Sowmiya Sree Elavalagan<quic_ssreeela at quicinc.com>
> 
> Transmit Power Control(TPC) stats should display per chain TPC value per
> radio. Add debugfs support to read and display TPC stats type and TPC
> stats. Take power values for each preamble type, rate and NSS combination
> from a particular index from each power arrays based on number of chains,
> NSS, modes, MCS and tx beamforming enabled/disabled parameters. Minimum
> of the values taken from reg power table, rates and Conformance Test
> Limit(CTL) array table should give the TPC which is in 0.25 dBm steps.
> 
> Sample Output:
> -------------
> echo 1 > /sys/kernel/debug/ath12k/pci-0000\:06\:00.0/mac0/tpc_stats_type
> cat /sys/kernel/debug/ath12k/pci-0000\:06\:00.0/mac0/tpc_stats
> 
> *************** TPC config **************
> * powers are in 0.25 dBm steps
> reg domain-22           chan freq-5955
> power limit-126         max reg-domain Power-252
> No.of tx chain-4        No.of rates-1164
> **************** SU WITH TXBF ****************
>                                  TPC values for Active chains
> Rate idx Preamble Rate code     1-Chain 2-Chain 3-Chain 4-Chain
> 4        OFDM    0x000          39      15      1       -9
> 5        OFDM    0x001          39      15      1       -9
> .....
> 12       HT20    0x200          40      16      2       -8
> 13       HT20    0x201          40      16      2       -8
> .....
> 44       HT40    0x200          88      88      88      88
> 45       HT40    0x201          88      88      88      88
> .....
> 76       VHT20   0x300          40      16      2       -8
> 77       VHT20   0x301          40      16      2       -8
> .....
> 172      VHT40   0x300          88      88      88      88
> 173      VHT40   0x301          88      88      88      88
> .....
> 412      HE20    0x400          88      88      88      88
> 413      HE20    0x401          88      88      88      88
> .....
> 508      HE40    0x400          76      76      76      76
> 509      HE40    0x401          76      76      76      76
> .....
> 748      EHT20   0x50e          88      88      88      88
> 749      EHT20   0x50f          88      88      88      88
> .....
> 812      EHT40   0x50e          88      88      88      88
> 813      EHT40   0x50f          88      88      88      88
> .....
> 
> Tested-on: QCN9274 hw2.0 PCI WLAN.WBE.1.1.1-00214-QCAHKSWPL_SILICONZ-1
> 
> Signed-off-by: Sowmiya Sree Elavalagan<quic_ssreeela at quicinc.com>
> Co-developed-by: Ramya Gnanasekar<quic_rgnanase at quicinc.com>
> Signed-off-by: Ramya Gnanasekar<quic_rgnanase at quicinc.com>
> Co-developed-by: Roopni Devanathan<quic_rdevanat at quicinc.com>
> Signed-off-by: Roopni Devanathan<quic_rdevanat at quicinc.com>
> ---

Reviewed-by: Aditya Kumar Singh <aditya.kumar.singh at oss.qualcomm.com>

-- 
Aditya