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ath10k: add cycle/rx_clear counters frequency to hw_params
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The frequency at which cycle/rx_clear counters are running might
change from one target type to another. QCA99X0 is running the
counters at 150Mhz while QCA9888X and QCA6174 are running at 88Mhz.
Add a new entry to hw_params to store the target specific frequency
and use it in msecs conversion. This change fixes inconsistent
channel active/busy time.

Signed-off-by: Vasanthakumar Thiagarajan <vthiagar@qti.qualcomm.com>
Signed-off-by: Kalle Valo <kvalo@qca.qualcomm.com>
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Vasanthakumar Thiagarajan authored and Kalle Valo committed Aug 17, 2015
1 parent 3d2a2e2 commit 9c8fb54
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Showing 4 changed files with 10 additions and 4 deletions.
5 changes: 5 additions & 0 deletions drivers/net/wireless/ath/ath10k/core.c
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Original file line number Diff line number Diff line change
Expand Up @@ -53,6 +53,7 @@ static const struct ath10k_hw_params ath10k_hw_params_list[] = {
.uart_pin = 7,
.has_shifted_cc_wraparound = true,
.otp_exe_param = 0,
.channel_counters_freq_hz = 88000,
.fw = {
.dir = QCA988X_HW_2_0_FW_DIR,
.fw = QCA988X_HW_2_0_FW_FILE,
Expand All @@ -68,6 +69,7 @@ static const struct ath10k_hw_params ath10k_hw_params_list[] = {
.patch_load_addr = QCA6174_HW_2_1_PATCH_LOAD_ADDR,
.uart_pin = 6,
.otp_exe_param = 0,
.channel_counters_freq_hz = 88000,
.fw = {
.dir = QCA6174_HW_2_1_FW_DIR,
.fw = QCA6174_HW_2_1_FW_FILE,
Expand All @@ -83,6 +85,7 @@ static const struct ath10k_hw_params ath10k_hw_params_list[] = {
.patch_load_addr = QCA6174_HW_3_0_PATCH_LOAD_ADDR,
.uart_pin = 6,
.otp_exe_param = 0,
.channel_counters_freq_hz = 88000,
.fw = {
.dir = QCA6174_HW_3_0_FW_DIR,
.fw = QCA6174_HW_3_0_FW_FILE,
Expand All @@ -98,6 +101,7 @@ static const struct ath10k_hw_params ath10k_hw_params_list[] = {
.patch_load_addr = QCA6174_HW_3_0_PATCH_LOAD_ADDR,
.uart_pin = 6,
.otp_exe_param = 0,
.channel_counters_freq_hz = 88000,
.fw = {
/* uses same binaries as hw3.0 */
.dir = QCA6174_HW_3_0_FW_DIR,
Expand All @@ -115,6 +119,7 @@ static const struct ath10k_hw_params ath10k_hw_params_list[] = {
.uart_pin = 7,
.otp_exe_param = 0x00000700,
.continuous_frag_desc = true,
.channel_counters_freq_hz = 150000,
.fw = {
.dir = QCA99X0_HW_2_0_FW_DIR,
.fw = QCA99X0_HW_2_0_FW_FILE,
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2 changes: 2 additions & 0 deletions drivers/net/wireless/ath/ath10k/core.h
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Original file line number Diff line number Diff line change
Expand Up @@ -609,6 +609,8 @@ struct ath10k {
*/
bool continuous_frag_desc;

u32 channel_counters_freq_hz;

struct ath10k_hw_params_fw {
const char *dir;
const char *fw;
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4 changes: 2 additions & 2 deletions drivers/net/wireless/ath/ath10k/hw.c
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Original file line number Diff line number Diff line change
Expand Up @@ -152,6 +152,6 @@ void ath10k_hw_fill_survey_time(struct ath10k *ar, struct survey_info *survey,
cc -= cc_prev - cc_fix;
rcc -= rcc_prev;

survey->time = CCNT_TO_MSEC(cc);
survey->time_busy = CCNT_TO_MSEC(rcc);
survey->time = CCNT_TO_MSEC(ar, cc);
survey->time_busy = CCNT_TO_MSEC(ar, rcc);
}
3 changes: 1 addition & 2 deletions drivers/net/wireless/ath/ath10k/hw.h
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Original file line number Diff line number Diff line change
Expand Up @@ -552,8 +552,7 @@ enum ath10k_hw_rate_cck {
#define SCRATCH_3_ADDRESS ar->regs->scratch_3_address
#define CPU_INTR_ADDRESS 0x0010

/* Cycle counters are running at 88MHz */
#define CCNT_TO_MSEC(x) ((x) / 88000)
#define CCNT_TO_MSEC(ar, x) ((x) / ar->hw_params.channel_counters_freq_hz)

/* Firmware indications to the Host via SCRATCH_3 register. */
#define FW_INDICATOR_ADDRESS ar->regs->fw_indicator_address
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