add lvds1024*800

hc

2024-01-31 f70575805708cabdedea7498aaa3f710fde4d920

 kernel/drivers/net/wireless/ath/ath9k/common-spectral.c
..
..
@@ -59,8 +59,7 @@
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 	sample = sample_end - SPECTRAL_HT20_SAMPLE_LEN + 1;
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-	max_index = spectral_max_index(mag_info->all_bins,
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-				       SPECTRAL_HT20_NUM_BINS);
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+	max_index = spectral_max_index_ht20(mag_info->all_bins);
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 	max_magnitude = spectral_max_magnitude(mag_info->all_bins);
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 	max_exp = mag_info->max_exp & 0xf;
..
..
@@ -72,7 +71,7 @@
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 	if (bytes_read < SPECTRAL_HT20_SAMPLE_LEN && max_index < 1)
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 		return -1;
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-	if (sample[max_index] != (max_magnitude >> max_exp))
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+	if ((sample[max_index] & 0xf8) != ((max_magnitude >> max_exp) & 0xf8))
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 		return -1;
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 	else
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 		return 0;
..
..
@@ -100,12 +99,10 @@
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 	sample = sample_end - SPECTRAL_HT20_40_SAMPLE_LEN + 1;
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 	lower_mag = spectral_max_magnitude(mag_info->lower_bins);
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-	lower_max_index = spectral_max_index(mag_info->lower_bins,
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-					     SPECTRAL_HT20_40_NUM_BINS);
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+	lower_max_index = spectral_max_index_ht40(mag_info->lower_bins);
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 	upper_mag = spectral_max_magnitude(mag_info->upper_bins);
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-	upper_max_index = spectral_max_index(mag_info->upper_bins,
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-					     SPECTRAL_HT20_40_NUM_BINS);
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+	upper_max_index = spectral_max_index_ht40(mag_info->upper_bins);
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 	max_exp = mag_info->max_exp & 0xf;
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..
..
@@ -117,19 +114,10 @@
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 	   ((upper_max_index < 1) || (lower_max_index < 1)))
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 		return -1;
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-	/* Some time hardware messes up the index and adds
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-	 * the index of the middle point (dc_pos). Try to fix it.
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-	 */
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-	if ((upper_max_index - dc_pos > 0) &&
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-	   (sample[upper_max_index] == (upper_mag >> max_exp)))
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-		upper_max_index -= dc_pos;
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-
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-	if ((lower_max_index - dc_pos > 0) &&
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-	   (sample[lower_max_index - dc_pos] == (lower_mag >> max_exp)))
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-		lower_max_index -= dc_pos;
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-
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-	if ((sample[upper_max_index + dc_pos] != (upper_mag >> max_exp)) ||
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-	   (sample[lower_max_index] != (lower_mag >> max_exp)))
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+	if (((sample[upper_max_index + dc_pos] & 0xf8) !=
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+	     ((upper_mag >> max_exp) & 0xf8)) ||
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+	    ((sample[lower_max_index] & 0xf8) !=
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+	     ((lower_mag >> max_exp) & 0xf8)))
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 		return -1;
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 	else
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 		return 0;
..
..
@@ -169,8 +157,7 @@
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 	magnitude = spectral_max_magnitude(mag_info->all_bins);
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 	fft_sample_20.max_magnitude = __cpu_to_be16(magnitude);
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-	max_index = spectral_max_index(mag_info->all_bins,
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-					SPECTRAL_HT20_NUM_BINS);
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+	max_index = spectral_max_index_ht20(mag_info->all_bins);
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 	fft_sample_20.max_index = max_index;
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 	bitmap_w = spectral_bitmap_weight(mag_info->all_bins);
..
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@@ -188,7 +175,8 @@
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 					magnitude >> max_exp,
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 					max_index);
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-	if (fft_sample_20.data[max_index] != (magnitude >> max_exp)) {
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+	if ((fft_sample_20.data[max_index] & 0xf8) !=
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+	    ((magnitude >> max_exp) & 0xf8)) {
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 		ath_dbg(common, SPECTRAL_SCAN, "Magnitude mismatch !\n");
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 		ret = -1;
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 	}
..
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@@ -302,12 +290,10 @@
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 	upper_mag = spectral_max_magnitude(mag_info->upper_bins);
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 	fft_sample_40.upper_max_magnitude = __cpu_to_be16(upper_mag);
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-	lower_max_index = spectral_max_index(mag_info->lower_bins,
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-					SPECTRAL_HT20_40_NUM_BINS);
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+	lower_max_index = spectral_max_index_ht40(mag_info->lower_bins);
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 	fft_sample_40.lower_max_index = lower_max_index;
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-	upper_max_index = spectral_max_index(mag_info->upper_bins,
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-					SPECTRAL_HT20_40_NUM_BINS);
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+	upper_max_index = spectral_max_index_ht40(mag_info->upper_bins);
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 	fft_sample_40.upper_max_index = upper_max_index;
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 	lower_bitmap_w = spectral_bitmap_weight(mag_info->lower_bins);
..
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@@ -331,29 +317,13 @@
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 					upper_mag >> max_exp,
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 					upper_max_index);
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-	/* Some time hardware messes up the index and adds
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-	 * the index of the middle point (dc_pos). Try to fix it.
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-	 */
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-	if ((upper_max_index - dc_pos > 0) &&
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-	   (fft_sample_40.data[upper_max_index] == (upper_mag >> max_exp))) {
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-		upper_max_index -= dc_pos;
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-		fft_sample_40.upper_max_index = upper_max_index;
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-	}
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-
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-	if ((lower_max_index - dc_pos > 0) &&
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-	   (fft_sample_40.data[lower_max_index - dc_pos] ==
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-	   (lower_mag >> max_exp))) {
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-		lower_max_index -= dc_pos;
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-		fft_sample_40.lower_max_index = lower_max_index;
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-	}
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-
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 	/* Check if we got the expected magnitude values at
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 	 * the expected bins
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 	 */
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-	if ((fft_sample_40.data[upper_max_index + dc_pos]
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-	    != (upper_mag >> max_exp)) ||
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-	   (fft_sample_40.data[lower_max_index]
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-	    != (lower_mag >> max_exp))) {
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+	if (((fft_sample_40.data[upper_max_index + dc_pos] & 0xf8)
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+	    != ((upper_mag >> max_exp) & 0xf8)) ||
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+	   ((fft_sample_40.data[lower_max_index] & 0xf8)
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+	    != ((lower_mag >> max_exp) & 0xf8))) {
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 		ath_dbg(common, SPECTRAL_SCAN, "Magnitude mismatch !\n");
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 		ret = -1;
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 	}
..
..
@@ -501,6 +471,7 @@
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 	u8 sample_buf[SPECTRAL_SAMPLE_MAX_LEN] = {0};
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 	struct ath_hw *ah = spec_priv->ah;
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 	struct ath_common *common = ath9k_hw_common(spec_priv->ah);
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+	struct ath_softc *sc = (struct ath_softc *)common->priv;
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 	u8 num_bins, *vdata = (u8 *)hdr;
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 	struct ath_radar_info *radar_info;
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 	int len = rs->rs_datalen;
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@@ -649,8 +620,13 @@
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 						       sample_buf, sample_len,
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 						       sample_bytes);
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-				fft_handler(rs, spec_priv, sample_buf,
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-					    tsf, freq, chan_type);
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+				ret = fft_handler(rs, spec_priv, sample_buf,
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+						  tsf, freq, chan_type);
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+
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+				if (ret == 0)
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+					RX_STAT_INC(sc, rx_spectral_sample_good);
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+				else
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+					RX_STAT_INC(sc, rx_spectral_sample_err);
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 				memset(sample_buf, 0, SPECTRAL_SAMPLE_MAX_LEN);
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..
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@@ -665,6 +641,11 @@
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 				ret = fft_handler(rs, spec_priv, sample_start,
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 						  tsf, freq, chan_type);
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+				if (ret == 0)
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+					RX_STAT_INC(sc, rx_spectral_sample_good);
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+				else
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+					RX_STAT_INC(sc, rx_spectral_sample_err);
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+
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 				/* Mix the received bins to the /dev/random
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 				 * pool
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 				 */
..
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@@ -675,7 +656,7 @@
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 			 * loop.
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 			 */
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 			if (len <= fft_len + 2)
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-				break;
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+				return 1;
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 			sample_start = &vdata[i + 1];
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..
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@@ -1058,6 +1039,9 @@
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 	buf_file = debugfs_create_file(filename, mode, parent, buf,
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 				       &relay_file_operations);
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+	if (IS_ERR(buf_file))
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+		return NULL;
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+
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 	*is_global = 1;
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 	return buf_file;
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 }