The table of valid SNR values for QAM 256 is off by one, and as a result if
the SNR is oscillating between 40.0 and 39.9 dB, tools like azap show it
going back and forth between 40.0 and 0 (misleading some people, including
myself, to think signal lock is being lost or there is a problem with register
reads).
Fix the table so that 40.0 dB is properly represented.
Cc: Steven Toth <stoth@xxxxxxxxxxxxxx>
Signed-off-by: Devin Heitmueller <dheitmueller@xxxxxxxxxxxxxx>
---
drivers/media/dvb/frontends/au8522_dig.c | 96 +++++++++++++++---------------
1 files changed, 48 insertions(+), 48 deletions(-)
diff --git a/drivers/media/dvb/frontends/au8522_dig.c b/drivers/media/dvb/frontends/au8522_dig.c
index 5fc70d6..ee8cf81 100644
--- a/drivers/media/dvb/frontends/au8522_dig.c
+++ b/drivers/media/dvb/frontends/au8522_dig.c
@@ -157,54 +157,54 @@ static struct mse2snr_tab qam64_mse2snr_tab[] = {
/* QAM256 SNR lookup table */
static struct mse2snr_tab qam256_mse2snr_tab[] = {
- { 16, 0 },
- { 17, 400 },
- { 18, 398 },
- { 19, 396 },
- { 20, 394 },
- { 21, 392 },
- { 22, 390 },
- { 23, 388 },
- { 24, 386 },
- { 25, 384 },
- { 26, 382 },
- { 27, 380 },
- { 28, 379 },
- { 29, 378 },
- { 30, 377 },
- { 31, 376 },
- { 32, 375 },
- { 33, 374 },
- { 34, 373 },
- { 35, 372 },
- { 36, 371 },
- { 37, 370 },
- { 38, 362 },
- { 39, 354 },
- { 40, 346 },
- { 41, 338 },
- { 42, 330 },
- { 43, 328 },
- { 44, 326 },
- { 45, 324 },
- { 46, 322 },
- { 47, 320 },
- { 48, 319 },
- { 49, 318 },
- { 50, 317 },
- { 51, 316 },
- { 52, 315 },
- { 53, 314 },
- { 54, 313 },
- { 55, 312 },
- { 56, 311 },
- { 57, 310 },
- { 58, 308 },
- { 59, 306 },
- { 60, 304 },
- { 61, 302 },
- { 62, 300 },
- { 63, 298 },
+ { 15, 0 },
+ { 16, 400 },
+ { 17, 398 },
+ { 18, 396 },
+ { 19, 394 },
+ { 20, 392 },
+ { 21, 390 },
+ { 22, 388 },
+ { 23, 386 },
+ { 24, 384 },
+ { 25, 382 },
+ { 26, 380 },
+ { 27, 379 },
+ { 28, 378 },
+ { 29, 377 },
+ { 30, 376 },
+ { 31, 375 },
+ { 32, 374 },
+ { 33, 373 },
+ { 34, 372 },
+ { 35, 371 },
+ { 36, 370 },
+ { 37, 362 },
+ { 38, 354 },
+ { 39, 346 },
+ { 40, 338 },
+ { 41, 330 },
+ { 42, 328 },
+ { 43, 326 },
+ { 44, 324 },
+ { 45, 322 },
+ { 46, 320 },
+ { 47, 319 },
+ { 48, 318 },
+ { 49, 317 },
+ { 50, 316 },
+ { 51, 315 },
+ { 52, 314 },
+ { 53, 313 },
+ { 54, 312 },
+ { 55, 311 },
+ { 56, 310 },
+ { 57, 308 },
+ { 58, 306 },
+ { 59, 304 },
+ { 60, 302 },
+ { 61, 300 },
+ { 62, 298 },
{ 65, 295 },
{ 68, 294 },
{ 70, 293 },
--
1.7.1
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