From 73c0b7c386beae392cff568e08914582ed6329d1 Mon Sep 17 00:00:00 2001
From: Manu Abraham <abraham.manu@xxxxxxxxx>
Date: Sat, 19 Nov 2011 21:01:03 +0530
Subject: [PATCH 05/13] TDA18271c2dd: Allow frontend to set DELSYS, rather than querying fe->ops.info.type
With any tuner that can tune to multiple delivery systems/standards, it does
query fe->ops.info.type to determine frontend type and set the delivery
system type. fe->ops.info.type can handle only 4 delivery systems, viz FE_QPSK,
FE_QAM, FE_OFDM and FE_ATSC.
Signed-off-by: Manu Abraham <abraham.manu@xxxxxxxxx>
---
drivers/media/dvb/frontends/tda18271c2dd.c | 56 ++++++++++++++++++++++++++++
1 files changed, 56 insertions(+), 0 deletions(-)
diff --git a/drivers/media/dvb/frontends/tda18271c2dd.c b/drivers/media/dvb/frontends/tda18271c2dd.c
index 1b1bf20..6077674 100644
--- a/drivers/media/dvb/frontends/tda18271c2dd.c
+++ b/drivers/media/dvb/frontends/tda18271c2dd.c
@@ -1180,6 +1180,61 @@ static int set_params(struct dvb_frontend *fe,
return status;
}
+static int set_state(struct dvb_frontend *fe, enum tuner_param param, struct tuner_state *tuner)
+{
+ struct tda_state *state = fe->tuner_priv;
+ fe_delivery_system_t delsys = SYS_UNDEFINED;
+ u32 bandwidth = 0;
+ int status = 0;
+ int Standard = 0;
+
+ if (param & DVBFE_TUNER_DELSYS)
+ delsys = tuner->delsys;
+ if (param & DVBFE_TUNER_FREQUENCY)
+ state->m_Frequency = tuner->frequency;
+ if (param & DVBFE_TUNER_BANDWIDTH)
+ bandwidth = tuner->bandwidth;
+
+ switch (delsys) {
+ case SYS_DVBT:
+ switch (bandwidth) {
+ case 6000000:
+ Standard = HF_DVBT_6MHZ;
+ break;
+ case 7000000:
+ Standard = HF_DVBT_7MHZ;
+ break;
+ case 8000000:
+ Standard = HF_DVBT_8MHZ;
+ break;
+ }
+ break;
+ case SYS_DVBC_ANNEX_AC:
+ /*
+ * FIXME! API BUG! DVB-C ANNEX A & C are different
+ * This should have been simply DVBC_ANNEX_A
+ */
+ Standard = HF_DVBC_6MHZ;
+ break;
+ default:
+ status = -EINVAL;
+ goto err;
+ }
+
+ do {
+ status = RFTrackingFiltersCorrection(state, state->m_Frequency);
+ if (status < 0)
+ break;
+ status = ChannelConfiguration(state, state->m_Frequency, Standard);
+ if (status < 0)
+ break;
+
+ msleep(state->m_SettlingTime); /* Allow AGC's to settle down */
+ } while (0);
+err:
+ return status;
+}
+
#if 0
static int GetSignalStrength(s32 *pSignalStrength, u32 RFAgc, u32 IFAgc)
{
@@ -1221,6 +1276,7 @@ static struct dvb_tuner_ops tuner_ops = {
.init = init,
.sleep = sleep,
.set_params = set_params,
+ .set_state = set_state,
.release = release,
.get_if_frequency = get_if_frequency,
.get_bandwidth = get_bandwidth,
--
1.7.1
