Merge "dsp: remove float operations in excursion calculation" (a29c486f) · Commits · e / devices / android_kernel_oneplus_sm7250

dsp/sp_params.c

+8 −7

Original line number	Diff line number	Diff line
		@@ -15,8 +15,9 @@
		#define SPK_PARAMS "spk_params"
		#define CLASS_NAME "cal_data"
		#define BUF_SZ 20
		#define Q27 (1<<27)
		#define Q22 (1<<22)
		#define Q13 (1<<13)
		#define Q7 (1<<7)

		struct afe_spk_ctl {
		struct class *p_class;
		@@ -88,11 +89,11 @@ static ssize_t sp_max_excursion_l_show(struct device *dev,
		{
		ssize_t ret = 0;
		int32_t ex_val_frac;
		float ex_val;
		int32_t ex_q27 = this_afe_spk.xt_logging.max_excursion[SP_V2_SPKR_1];

		ex_val = (ex_q27 * 1.0)/Q27;
		ex_val_frac = ex_val * 100;
		ex_val_frac = ex_q27/Q13;
		ex_val_frac = (ex_val_frac * 10000)/(Q7 * Q7);
		ex_val_frac /= 100;
		ret = snprintf(buf, BUF_SZ, "%d.%02d\n", 0, ex_val_frac);
		this_afe_spk.xt_logging.max_excursion[SP_V2_SPKR_1] = 0;
		return ret;
		@@ -105,11 +106,11 @@ static ssize_t sp_max_excursion_r_show(struct device *dev,
		{
		ssize_t ret = 0;
		int32_t ex_val_frac;
		float ex_val;
		int32_t ex_q27 = this_afe_spk.xt_logging.max_excursion[SP_V2_SPKR_2];

		ex_val = (ex_q27 * 1.0)/Q27;
		ex_val_frac = ex_val * 100;
		ex_val_frac = ex_q27/Q13;
		ex_val_frac = (ex_val_frac * 10000)/(Q7 * Q7);
		ex_val_frac /= 100;
		ret = snprintf(buf, BUF_SZ, "%d.%02d\n", 0, ex_val_frac);
		this_afe_spk.xt_logging.max_excursion[SP_V2_SPKR_2] = 0;
		return ret;