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path: root/drivers/media/common/tuners/xc5000.c
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Diffstat (limited to 'drivers/media/common/tuners/xc5000.c')
-rw-r--r--drivers/media/common/tuners/xc5000.c147
1 files changed, 66 insertions, 81 deletions
diff --git a/drivers/media/common/tuners/xc5000.c b/drivers/media/common/tuners/xc5000.c
index aa1b2e844d3..296df05b8cd 100644
--- a/drivers/media/common/tuners/xc5000.c
+++ b/drivers/media/common/tuners/xc5000.c
@@ -628,20 +628,13 @@ static void xc_debug_dump(struct xc5000_priv *priv)
dprintk(1, "*** Quality (0:<8dB, 7:>56dB) = %d\n", quality);
}
-/*
- * As defined on EN 300 429, the DVB-C roll-off factor is 0.15.
- * So, 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 given by:
- * max_symbol_rate = 6 MHz / 1.15 = 5217391 Bauds
- */
-#define MAX_SYMBOL_RATE_6MHz 5217391
-
-static int xc5000_set_params(struct dvb_frontend *fe,
- struct dvb_frontend_parameters *params)
+static int xc5000_set_params(struct dvb_frontend *fe)
{
+ int ret, b;
struct xc5000_priv *priv = fe->tuner_priv;
- int ret;
+ u32 bw = fe->dtv_property_cache.bandwidth_hz;
+ u32 freq = fe->dtv_property_cache.frequency;
+ u32 delsys = fe->dtv_property_cache.delivery_system;
if (xc5000_is_firmware_loaded(fe) != XC_RESULT_SUCCESS) {
if (xc_load_fw_and_init_tuner(fe) != XC_RESULT_SUCCESS) {
@@ -650,88 +643,69 @@ static int xc5000_set_params(struct dvb_frontend *fe,
}
}
- dprintk(1, "%s() frequency=%d (Hz)\n", __func__, params->frequency);
-
- if (fe->ops.info.type == FE_ATSC) {
- dprintk(1, "%s() ATSC\n", __func__);
- switch (params->u.vsb.modulation) {
- case VSB_8:
- case VSB_16:
- dprintk(1, "%s() VSB modulation\n", __func__);
- priv->rf_mode = XC_RF_MODE_AIR;
- priv->freq_hz = params->frequency - 1750000;
- priv->bandwidth = BANDWIDTH_6_MHZ;
- priv->video_standard = DTV6;
- break;
- case QAM_64:
- case QAM_256:
- case QAM_AUTO:
- dprintk(1, "%s() QAM modulation\n", __func__);
- priv->rf_mode = XC_RF_MODE_CABLE;
- priv->freq_hz = params->frequency - 1750000;
- priv->bandwidth = BANDWIDTH_6_MHZ;
- priv->video_standard = DTV6;
- break;
- default:
- return -EINVAL;
- }
- } else if (fe->ops.info.type == FE_OFDM) {
+ dprintk(1, "%s() frequency=%d (Hz)\n", __func__, freq);
+
+ switch (delsys) {
+ case SYS_ATSC:
+ dprintk(1, "%s() VSB modulation\n", __func__);
+ priv->rf_mode = XC_RF_MODE_AIR;
+ priv->freq_hz = freq - 1750000;
+ priv->video_standard = DTV6;
+ break;
+ case SYS_DVBC_ANNEX_B:
+ dprintk(1, "%s() QAM modulation\n", __func__);
+ priv->rf_mode = XC_RF_MODE_CABLE;
+ priv->freq_hz = freq - 1750000;
+ priv->video_standard = DTV6;
+ break;
+ case SYS_DVBT:
+ case SYS_DVBT2:
dprintk(1, "%s() OFDM\n", __func__);
- switch (params->u.ofdm.bandwidth) {
- case BANDWIDTH_6_MHZ:
- priv->bandwidth = BANDWIDTH_6_MHZ;
+ switch (bw) {
+ case 6000000:
priv->video_standard = DTV6;
- priv->freq_hz = params->frequency - 1750000;
+ priv->freq_hz = freq - 1750000;
break;
- case BANDWIDTH_7_MHZ:
- printk(KERN_ERR "xc5000 bandwidth 7MHz not supported\n");
- return -EINVAL;
- case BANDWIDTH_8_MHZ:
- priv->bandwidth = BANDWIDTH_8_MHZ;
+ case 7000000:
+ priv->video_standard = DTV7;
+ priv->freq_hz = freq - 2250000;
+ break;
+ case 8000000:
priv->video_standard = DTV8;
- priv->freq_hz = params->frequency - 2750000;
+ priv->freq_hz = freq - 2750000;
break;
default:
printk(KERN_ERR "xc5000 bandwidth not set!\n");
return -EINVAL;
}
priv->rf_mode = XC_RF_MODE_AIR;
- } else if (fe->ops.info.type == FE_QAM) {
- switch (params->u.qam.modulation) {
- case QAM_256:
- case QAM_AUTO:
- case QAM_16:
- case QAM_32:
- case QAM_64:
- case QAM_128:
- dprintk(1, "%s() QAM modulation\n", __func__);
- priv->rf_mode = XC_RF_MODE_CABLE;
- /*
- * Using a 8MHz bandwidth sometimes fail
- * with 6MHz-spaced channels, due to inter-carrier
- * interference. So, use DTV6 firmware
- */
- if (params->u.qam.symbol_rate <= MAX_SYMBOL_RATE_6MHz) {
- priv->bandwidth = BANDWIDTH_6_MHZ;
- priv->video_standard = DTV6;
- priv->freq_hz = params->frequency - 1750000;
- } else {
- priv->bandwidth = BANDWIDTH_8_MHZ;
- priv->video_standard = DTV7_8;
- priv->freq_hz = params->frequency - 2750000;
- }
- break;
- default:
- dprintk(1, "%s() Unsupported QAM type\n", __func__);
- return -EINVAL;
+ case SYS_DVBC_ANNEX_A:
+ case SYS_DVBC_ANNEX_C:
+ dprintk(1, "%s() QAM modulation\n", __func__);
+ priv->rf_mode = XC_RF_MODE_CABLE;
+ if (bw <= 6000000) {
+ priv->video_standard = DTV6;
+ priv->freq_hz = freq - 1750000;
+ b = 6;
+ } else if (bw <= 7000000) {
+ priv->video_standard = DTV7;
+ priv->freq_hz = freq - 2250000;
+ b = 7;
+ } else {
+ priv->video_standard = DTV7_8;
+ priv->freq_hz = freq - 2750000;
+ b = 8;
}
- } else {
- printk(KERN_ERR "xc5000 modulation type not supported!\n");
+ dprintk(1, "%s() Bandwidth %dMHz (%d)\n", __func__,
+ b, bw);
+ break;
+ default:
+ printk(KERN_ERR "xc5000: delivery system is not supported!\n");
return -EINVAL;
}
- dprintk(1, "%s() frequency=%d (compensated)\n",
- __func__, priv->freq_hz);
+ dprintk(1, "%s() frequency=%d (compensated to %d)\n",
+ __func__, freq, priv->freq_hz);
ret = xc_SetSignalSource(priv, priv->rf_mode);
if (ret != XC_RESULT_SUCCESS) {
@@ -763,6 +737,8 @@ static int xc5000_set_params(struct dvb_frontend *fe,
if (debug)
xc_debug_dump(priv);
+ priv->bandwidth = bw;
+
return 0;
}
@@ -968,6 +944,14 @@ static int xc5000_get_frequency(struct dvb_frontend *fe, u32 *freq)
return 0;
}
+static int xc5000_get_if_frequency(struct dvb_frontend *fe, u32 *freq)
+{
+ struct xc5000_priv *priv = fe->tuner_priv;
+ dprintk(1, "%s()\n", __func__);
+ *freq = priv->if_khz * 1000;
+ return 0;
+}
+
static int xc5000_get_bandwidth(struct dvb_frontend *fe, u32 *bw)
{
struct xc5000_priv *priv = fe->tuner_priv;
@@ -1108,6 +1092,7 @@ static const struct dvb_tuner_ops xc5000_tuner_ops = {
.set_params = xc5000_set_params,
.set_analog_params = xc5000_set_analog_params,
.get_frequency = xc5000_get_frequency,
+ .get_if_frequency = xc5000_get_if_frequency,
.get_bandwidth = xc5000_get_bandwidth,
.get_status = xc5000_get_status
};
@@ -1135,7 +1120,7 @@ struct dvb_frontend *xc5000_attach(struct dvb_frontend *fe,
break;
case 1:
/* new tuner instance */
- priv->bandwidth = BANDWIDTH_6_MHZ;
+ priv->bandwidth = 6000000;
fe->tuner_priv = priv;
break;
default:
generated by cgit v1.2.3-18-g5258 (git 2.32.0) at 2024-12-08 00:48:09 +0000