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Diffstat (limited to 'linux/drivers/media/common/tuners')
-rw-r--r--linux/drivers/media/common/tuners/tda827x.c15
-rw-r--r--linux/drivers/media/common/tuners/tda8290.c63
-rw-r--r--linux/drivers/media/common/tuners/tuner-xc2028.c19
3 files changed, 72 insertions, 25 deletions
diff --git a/linux/drivers/media/common/tuners/tda827x.c b/linux/drivers/media/common/tuners/tda827x.c
index 83a017c53..a14fe817d 100644
--- a/linux/drivers/media/common/tuners/tda827x.c
+++ b/linux/drivers/media/common/tuners/tda827x.c
@@ -81,10 +81,11 @@ static void tda827x_set_std(struct dvb_frontend *fe,
mode = "xx";
}
- if (params->mode == V4L2_TUNER_RADIO)
+ if (params->mode == V4L2_TUNER_RADIO) {
priv->sgIF = 88; /* if frequency is 5.5 MHz */
-
- dprintk("setting tda827x to system %s\n", mode);
+ dprintk("setting tda827x to radio FM\n");
+ } else
+ dprintk("setting tda827x to system %s\n", mode);
}
@@ -200,7 +201,7 @@ static int tda827xo_set_params(struct dvb_frontend *fe,
fe->ops.i2c_gate_ctrl(fe, 1);
i2c_transfer(priv->i2c_adap, &msg, 1);
- priv->frequency = tuner_freq - if_freq; // FIXME
+ priv->frequency = params->frequency;
priv->bandwidth = (fe->ops.info.type == FE_OFDM) ? params->u.ofdm.bandwidth : 0;
return 0;
@@ -305,7 +306,7 @@ static int tda827xo_set_analog_params(struct dvb_frontend *fe,
reg2[1] = 0x08; /* Vsync en */
i2c_transfer(priv->i2c_adap, &msg, 1);
- priv->frequency = freq * 62500;
+ priv->frequency = params->frequency;
return 0;
}
@@ -592,7 +593,7 @@ static int tda827xa_set_params(struct dvb_frontend *fe,
fe->ops.i2c_gate_ctrl(fe, 1);
i2c_transfer(priv->i2c_adap, &msg, 1);
- priv->frequency = tuner_freq - if_freq; // FIXME
+ priv->frequency = params->frequency;
priv->bandwidth = (fe->ops.info.type == FE_OFDM) ? params->u.ofdm.bandwidth : 0;
return 0;
@@ -692,7 +693,7 @@ static int tda827xa_set_analog_params(struct dvb_frontend *fe,
tuner_reg[1] = 0x19 + (priv->lpsel << 1);
i2c_transfer(priv->i2c_adap, &msg, 1);
- priv->frequency = freq * 62500;
+ priv->frequency = params->frequency;
return 0;
}
diff --git a/linux/drivers/media/common/tuners/tda8290.c b/linux/drivers/media/common/tuners/tda8290.c
index 637849ec8..6eaaacca0 100644
--- a/linux/drivers/media/common/tuners/tda8290.c
+++ b/linux/drivers/media/common/tuners/tda8290.c
@@ -33,6 +33,9 @@ static int debug;
module_param(debug, int, 0644);
MODULE_PARM_DESC(debug, "enable verbose debug messages");
+static int deemphasis_50;
+MODULE_PARM_DESC(deemphasis_50, "0 - 75us deemphasis; 1 - 50us deemphasis");
+
/* ---------------------------------------------------------------------- */
struct tda8290_priv {
@@ -162,9 +165,34 @@ static void set_audio(struct dvb_frontend *fe,
mode = "xx";
}
- tuner_dbg("setting tda829x to system %s\n", mode);
+ if (params->mode == V4L2_TUNER_RADIO) {
+ priv->tda8290_easy_mode = 0x01; /* Start with MN values */
+ tuner_dbg("setting to radio FM\n");
+ } else {
+ tuner_dbg("setting tda829x to system %s\n", mode);
+ }
}
+struct {
+ unsigned char seq[2];
+} fm_mode[] = {
+ { { 0x01, 0x81} }, /* Put device into expert mode */
+ { { 0x03, 0x48} }, /* Disable NOTCH and VIDEO filters */
+ { { 0x04, 0x04} }, /* Disable color carrier filter (SSIF) */
+ { { 0x05, 0x04} }, /* ADC headroom */
+ { { 0x06, 0x10} }, /* group delay flat */
+
+ { { 0x07, 0x00} }, /* use the same radio DTO values as a tda8295 */
+ { { 0x08, 0x00} },
+ { { 0x09, 0x80} },
+ { { 0x0a, 0xda} },
+ { { 0x0b, 0x4b} },
+ { { 0x0c, 0x68} },
+
+ { { 0x0d, 0x00} }, /* PLL off, no video carrier detect */
+ { { 0x14, 0x00} }, /* disable auto mute if no video */
+};
+
static void tda8290_set_params(struct dvb_frontend *fe,
struct analog_parameters *params)
{
@@ -201,15 +229,30 @@ static void tda8290_set_params(struct dvb_frontend *fe,
tuner_i2c_xfer_send(&priv->i2c_props, soft_reset, 2);
msleep(1);
- expert_mode[1] = priv->tda8290_easy_mode + 0x80;
- tuner_i2c_xfer_send(&priv->i2c_props, expert_mode, 2);
- tuner_i2c_xfer_send(&priv->i2c_props, gainset_off, 2);
- tuner_i2c_xfer_send(&priv->i2c_props, if_agc_spd, 2);
- if (priv->tda8290_easy_mode & 0x60)
- tuner_i2c_xfer_send(&priv->i2c_props, adc_head_9, 2);
- else
- tuner_i2c_xfer_send(&priv->i2c_props, adc_head_6, 2);
- tuner_i2c_xfer_send(&priv->i2c_props, pll_bw_nom, 2);
+ if (params->mode == V4L2_TUNER_RADIO) {
+ int i;
+ unsigned char deemphasis[] = { 0x13, 1 };
+
+ /* FIXME: allow using a different deemphasis */
+
+ if (deemphasis_50)
+ deemphasis[1] = 2;
+
+ for (i = 0; i < ARRAY_SIZE(fm_mode); i++)
+ tuner_i2c_xfer_send(&priv->i2c_props, fm_mode[i].seq, 2);
+
+ tuner_i2c_xfer_send(&priv->i2c_props, deemphasis, 2);
+ } else {
+ expert_mode[1] = priv->tda8290_easy_mode + 0x80;
+ tuner_i2c_xfer_send(&priv->i2c_props, expert_mode, 2);
+ tuner_i2c_xfer_send(&priv->i2c_props, gainset_off, 2);
+ tuner_i2c_xfer_send(&priv->i2c_props, if_agc_spd, 2);
+ if (priv->tda8290_easy_mode & 0x60)
+ tuner_i2c_xfer_send(&priv->i2c_props, adc_head_9, 2);
+ else
+ tuner_i2c_xfer_send(&priv->i2c_props, adc_head_6, 2);
+ tuner_i2c_xfer_send(&priv->i2c_props, pll_bw_nom, 2);
+ }
tda8290_i2c_bridge(fe, 1);
diff --git a/linux/drivers/media/common/tuners/tuner-xc2028.c b/linux/drivers/media/common/tuners/tuner-xc2028.c
index 7f43272ca..9536e3d3b 100644
--- a/linux/drivers/media/common/tuners/tuner-xc2028.c
+++ b/linux/drivers/media/common/tuners/tuner-xc2028.c
@@ -32,6 +32,12 @@ static int debug;
module_param(debug, int, 0644);
MODULE_PARM_DESC(debug, "enable verbose debug messages");
+static int no_poweroff;
+module_param(no_poweroff, int, 0644);
+MODULE_PARM_DESC(debug, "0 (default) powers device off when not used.\n"
+ "1 keep device energized and with tuner ready all the times.\n"
+ " Faster, but consumes more power and keeps the device hotter\n");
+
static char audio_std[8];
module_param_string(audio_std, audio_std, sizeof(audio_std), 0);
MODULE_PARM_DESC(audio_std,
@@ -1095,16 +1101,16 @@ static int xc2028_set_params(struct dvb_frontend *fe,
T_DIGITAL_TV, type, 0, demod);
}
-#if 0
-/* This is needed at sleep (S1/S3), but not at fe_standby. Otherwise,
- firmware will be loaded on every open()
- */
static int xc2028_sleep(struct dvb_frontend *fe)
{
struct xc2028_data *priv = fe->tuner_priv;
int rc = 0;
- tuner_dbg("%s called\n", __func__);
+ /* Avoid firmware reload on slow devices */
+ if (no_poweroff)
+ return 0;
+
+ tuner_dbg("Putting xc2028/3028 into poweroff mode.\n");
mutex_lock(&priv->lock);
@@ -1119,7 +1125,6 @@ static int xc2028_sleep(struct dvb_frontend *fe)
return rc;
}
-#endif
static int xc2028_dvb_release(struct dvb_frontend *fe)
{
@@ -1200,9 +1205,7 @@ static const struct dvb_tuner_ops xc2028_dvb_tuner_ops = {
.get_frequency = xc2028_get_frequency,
.get_rf_strength = xc2028_signal,
.set_params = xc2028_set_params,
-#if 0
.sleep = xc2028_sleep,
-#endif
#if 0
int (*get_bandwidth)(struct dvb_frontend *fe, u32 *bandwidth);
int (*get_status)(struct dvb_frontend *fe, u32 *status);
generated by cgit v1.2.3 (git 2.25.1) at 2025-01-09 05:02:32 +0000