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ath10k: implement debugfs interface for Transmit Power Control stats

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The Transmit Power Control (TPC) dump will show the power control values for
each rate which makes it easier to debug calibration problems.

Example usage:

# cat /sys/kernel/debug/ieee80211/phy0/ath10k/tpc_stats
TPC config for channel  5180  mode  10

CTL             = 0x10 Reg. Domain              = 58
Antenna Gain    = 1    Reg. Max Antenna Gain    = 0
Power Limit     = 34   Reg. Max Power           = 34
Num tx chains   = 3    Num supported rates      = 155

**********CDD POWER TABLE*******

No.  Preamble Rate_code tpc_valu1 tpc_value2 tpc_value3
0       CCK     0x40       0            0       0
1       CCk     0x41       0            0       0

[...]

154     HTCUP   0x 0       24           0       0
**********STBC POWER TABLE******
No.  Preamble Rate_code tpc_valu1 tpc_value2 tpc_value3
0       CCK     0x40       0            0       0

[...]

154     HTCUP   0x 0       24           24      0
**********TXBF POWER TABLE******

is used to dump the tx power control stats.

Signed-off-by: Maharaja Kennadyrajan <c_mkenna@qti.qualcomm.com>
Signed-off-by: Kalle Valo <kvalo@qca.qualcomm.com>
This commit is contained in:
Maharaja Kennadyrajan
2015-10-05 17:56:38 +03:00
committed by Kalle Valo
parent 3b8fc902e3
commit 295426669c
6 changed files with 573 additions and 1 deletions
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15
drivers/net/wireless/ath/ath10k/wmi.h
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@@ -3661,8 +3661,18 @@ struct wmi_pdev_get_tpc_config_cmd {
__le32 param;
} __packed;
#define WMI_TPC_CONFIG_PARAM 1
#define WMI_TPC_RATE_MAX 160
#define WMI_TPC_TX_N_CHAIN 4
#define WMI_TPC_PREAM_TABLE_MAX 10
#define WMI_TPC_FLAG 3
#define WMI_TPC_BUF_SIZE 10
enum wmi_tpc_table_type {
WMI_TPC_TABLE_TYPE_CDD = 0,
WMI_TPC_TABLE_TYPE_STBC = 1,
WMI_TPC_TABLE_TYPE_TXBF = 2,
};
enum wmi_tpc_config_event_flag {
WMI_TPC_CONFIG_EVENT_FLAG_TABLE_CDD = 0x1,
@@ -4272,6 +4282,11 @@ enum wmi_rate_preamble {
WMI_RATE_PREAMBLE_VHT,
};
#define ATH10K_HW_NSS(rate) (1 + (((rate) >> 4) & 0x3))
#define ATH10K_HW_PREAMBLE(rate) (((rate) >> 6) & 0x3)
#define ATH10K_HW_RATECODE(rate, nss, preamble) \
(((preamble) << 6) | ((nss) << 4) | (rate))
/* Value to disable fixed rate setting */
#define WMI_FIXED_RATE_NONE (0xff)