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authorLinus Torvalds <torvalds@linux-foundation.org>2012-01-15 12:49:56 -0800
committerLinus Torvalds <torvalds@linux-foundation.org>2012-01-15 12:49:56 -0800
commit122804ecb59493fbb4d31b3ba9ac59faaf45276f (patch)
treecff4d8a158c412e4a8d3abc8d91bb0eb52b01c9a /drivers/media/dvb/frontends/tda18271c2dd.c
parent16008d641670571ff4cd750b416c7caf2d89f467 (diff)
parent126400033940afb658123517a2e80eb68259fbd7 (diff)
downloadlinux-122804ecb59493fbb4d31b3ba9ac59faaf45276f.tar.gz
Merge branch 'v4l_for_linus' of git://git.kernel.org/pub/scm/linux/kernel/git/mchehab/linux-media
* 'v4l_for_linus' of git://git.kernel.org/pub/scm/linux/kernel/git/mchehab/linux-media: (655 commits) [media] revert patch: HDIC HD29L2 DMB-TH USB2.0 reference design driver mb86a20s: Add a few more register settings at the init seq mb86a20s: Group registers into the same line [media] [PATCH] don't reset the delivery system on DTV_CLEAR [media] [BUG] it913x-fe fix typo error making SNR levels unstable [media] cx23885: Query the CX25840 during enum_input for status [media] cx25840: Add support for g_input_status [media] rc-videomate-m1f.c Rename to match remote controler name [media] drivers: media: au0828: Fix dependency for VIDEO_AU0828 [media] convert drivers/media/* to use module_platform_driver() [media] drivers: video: cx231xx: Fix dependency for VIDEO_CX231XX_DVB [media] Exynos4 JPEG codec v4l2 driver [media] doc: v4l: selection: choose pixels as units for selection rectangles [media] v4l: s5p-tv: mixer: fix setup of VP scaling [media] v4l: s5p-tv: mixer: add support for selection API [media] v4l: emulate old crop API using extended crop/compose API [media] doc: v4l: add documentation for selection API [media] doc: v4l: add binary images for selection API [media] v4l: add support for selection api [media] hd29l2: fix review findings ...
Diffstat (limited to 'drivers/media/dvb/frontends/tda18271c2dd.c')
-rw-r--r--drivers/media/dvb/frontends/tda18271c2dd.c52
1 files changed, 24 insertions, 28 deletions
diff --git a/drivers/media/dvb/frontends/tda18271c2dd.c b/drivers/media/dvb/frontends/tda18271c2dd.c
index 1b1bf200c55c..86da3d816498 100644
--- a/drivers/media/dvb/frontends/tda18271c2dd.c
+++ b/drivers/media/dvb/frontends/tda18271c2dd.c
@@ -1123,55 +1123,51 @@ static int release(struct dvb_frontend *fe)
return 0;
}
-/*
- * As defined on EN 300 429 Annex A and on ITU-T J.83 annex A, the DVB-C
- * roll-off factor is 0.15.
- * According with the specs, the amount of the needed bandwith is given by:
- * Bw = Symbol_rate * (1 + 0.15)
- * As such, the maximum symbol rate supported by 6 MHz is
- * max_symbol_rate = 6 MHz / 1.15 = 5217391 Bauds
- *NOTE: For ITU-T J.83 Annex C, the roll-off factor is 0.13. So:
- * max_symbol_rate = 6 MHz / 1.13 = 5309735 Baud
- * That means that an adjustment is needed for Japan,
- * but, as currently DRX-K is hardcoded to Annex A, let's stick
- * with 0.15 roll-off factor.
- */
-#define MAX_SYMBOL_RATE_6MHz 5217391
-static int set_params(struct dvb_frontend *fe,
- struct dvb_frontend_parameters *params)
+static int set_params(struct dvb_frontend *fe)
{
struct tda_state *state = fe->tuner_priv;
int status = 0;
int Standard;
+ u32 bw = fe->dtv_property_cache.bandwidth_hz;
+ u32 delsys = fe->dtv_property_cache.delivery_system;
- state->m_Frequency = params->frequency;
+ state->m_Frequency = fe->dtv_property_cache.frequency;
- if (fe->ops.info.type == FE_OFDM)
- switch (params->u.ofdm.bandwidth) {
- case BANDWIDTH_6_MHZ:
+ switch (delsys) {
+ case SYS_DVBT:
+ case SYS_DVBT2:
+ switch (bw) {
+ case 6000000:
Standard = HF_DVBT_6MHZ;
break;
- case BANDWIDTH_7_MHZ:
+ case 7000000:
Standard = HF_DVBT_7MHZ;
break;
- default:
- case BANDWIDTH_8_MHZ:
+ case 8000000:
Standard = HF_DVBT_8MHZ;
break;
+ default:
+ return -EINVAL;
}
- else if (fe->ops.info.type == FE_QAM) {
- if (params->u.qam.symbol_rate <= MAX_SYMBOL_RATE_6MHz)
+ case SYS_DVBC_ANNEX_A:
+ case SYS_DVBC_ANNEX_C:
+ if (bw <= 6000000)
Standard = HF_DVBC_6MHZ;
+ else if (bw <= 7000000)
+ Standard = HF_DVBC_7MHZ;
else
Standard = HF_DVBC_8MHZ;
- } else
+ break;
+ default:
return -EINVAL;
+ }
do {
- status = RFTrackingFiltersCorrection(state, params->frequency);
+ status = RFTrackingFiltersCorrection(state, state->m_Frequency);
if (status < 0)
break;
- status = ChannelConfiguration(state, params->frequency, Standard);
+ status = ChannelConfiguration(state, state->m_Frequency,
+ Standard);
if (status < 0)
break;