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path: root/drivers/media/dvb-frontends/mb86a20s.c
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Diffstat (limited to 'drivers/media/dvb-frontends/mb86a20s.c')
-rw-r--r--drivers/media/dvb-frontends/mb86a20s.c505
1 files changed, 323 insertions, 182 deletions
diff --git a/drivers/media/dvb-frontends/mb86a20s.c b/drivers/media/dvb-frontends/mb86a20s.c
index 4faaf80..856374b 100644
--- a/drivers/media/dvb-frontends/mb86a20s.c
+++ b/drivers/media/dvb-frontends/mb86a20s.c
@@ -20,10 +20,24 @@
#include "dvb_frontend.h"
#include "mb86a20s.h"
+#define NUM_LAYERS 3
+
static int debug = 1;
module_param(debug, int, 0644);
MODULE_PARM_DESC(debug, "Activates frontend debugging (default:0)");
+enum mb86a20s_bandwidth {
+ MB86A20S_13SEG = 0,
+ MB86A20S_13SEG_PARTIAL = 1,
+ MB86A20S_1SEG = 2,
+ MB86A20S_3SEG = 3,
+};
+
+u8 mb86a20s_subchannel[] = {
+ 0xb0, 0xc0, 0xd0, 0xe0,
+ 0xf0, 0x00, 0x10, 0x20,
+};
+
struct mb86a20s_state {
struct i2c_adapter *i2c;
const struct mb86a20s_config *config;
@@ -31,7 +45,13 @@ struct mb86a20s_state {
struct dvb_frontend frontend;
- u32 estimated_rate[3];
+ u32 if_freq;
+ enum mb86a20s_bandwidth bw;
+ bool inversion;
+ u32 subchannel;
+
+ u32 estimated_rate[NUM_LAYERS];
+ unsigned long get_strength_time;
bool need_init;
};
@@ -47,35 +67,33 @@ struct regdata {
* Initialization sequence: Use whatevere default values that PV SBTVD
* does on its initialisation, obtained via USB snoop
*/
-static struct regdata mb86a20s_init[] = {
+static struct regdata mb86a20s_init1[] = {
{ 0x70, 0x0f },
{ 0x70, 0xff },
{ 0x08, 0x01 },
- { 0x09, 0x3e },
- { 0x50, 0xd1 }, { 0x51, 0x22 },
- { 0x39, 0x01 },
- { 0x71, 0x00 },
- { 0x28, 0x2a }, { 0x29, 0x00 }, { 0x2a, 0xff }, { 0x2b, 0x80 },
- { 0x28, 0x20 }, { 0x29, 0x33 }, { 0x2a, 0xdf }, { 0x2b, 0xa9 },
+ { 0x50, 0xd1 }, { 0x51, 0x20 },
+};
+
+static struct regdata mb86a20s_init2[] = {
{ 0x28, 0x22 }, { 0x29, 0x00 }, { 0x2a, 0x1f }, { 0x2b, 0xf0 },
{ 0x3b, 0x21 },
- { 0x3c, 0x3a },
+ { 0x3c, 0x38 },
{ 0x01, 0x0d },
- { 0x04, 0x08 }, { 0x05, 0x05 },
+ { 0x04, 0x08 }, { 0x05, 0x03 },
{ 0x04, 0x0e }, { 0x05, 0x00 },
- { 0x04, 0x0f }, { 0x05, 0x14 },
- { 0x04, 0x0b }, { 0x05, 0x8c },
+ { 0x04, 0x0f }, { 0x05, 0x37 },
+ { 0x04, 0x0b }, { 0x05, 0x78 },
{ 0x04, 0x00 }, { 0x05, 0x00 },
- { 0x04, 0x01 }, { 0x05, 0x07 },
- { 0x04, 0x02 }, { 0x05, 0x0f },
- { 0x04, 0x03 }, { 0x05, 0xa0 },
+ { 0x04, 0x01 }, { 0x05, 0x1e },
+ { 0x04, 0x02 }, { 0x05, 0x07 },
+ { 0x04, 0x03 }, { 0x05, 0xd0 },
{ 0x04, 0x09 }, { 0x05, 0x00 },
{ 0x04, 0x0a }, { 0x05, 0xff },
- { 0x04, 0x27 }, { 0x05, 0x64 },
+ { 0x04, 0x27 }, { 0x05, 0x00 },
{ 0x04, 0x28 }, { 0x05, 0x00 },
- { 0x04, 0x1e }, { 0x05, 0xff },
- { 0x04, 0x29 }, { 0x05, 0x0a },
- { 0x04, 0x32 }, { 0x05, 0x0a },
+ { 0x04, 0x1e }, { 0x05, 0x00 },
+ { 0x04, 0x29 }, { 0x05, 0x64 },
+ { 0x04, 0x32 }, { 0x05, 0x02 },
{ 0x04, 0x14 }, { 0x05, 0x02 },
{ 0x04, 0x04 }, { 0x05, 0x00 },
{ 0x04, 0x05 }, { 0x05, 0x22 },
@@ -142,39 +160,39 @@ static struct regdata mb86a20s_init[] = {
{ 0x50, 0xd5 }, { 0x51, 0x01 }, /* Serial */
{ 0x50, 0xd6 }, { 0x51, 0x1f },
{ 0x50, 0xd2 }, { 0x51, 0x03 },
- { 0x50, 0xd7 }, { 0x51, 0x3f },
- { 0x28, 0x74 }, { 0x29, 0x00 }, { 0x28, 0x74 }, { 0x29, 0x40 },
- { 0x28, 0x46 }, { 0x29, 0x2c }, { 0x28, 0x46 }, { 0x29, 0x0c },
+ { 0x50, 0xd7 }, { 0x51, 0xbf },
+ { 0x28, 0x74 }, { 0x29, 0x00 }, { 0x2a, 0x00 }, { 0x2b, 0xff },
+ { 0x28, 0x46 }, { 0x29, 0x00 }, { 0x2a, 0x1a }, { 0x2b, 0x0c },
{ 0x04, 0x40 }, { 0x05, 0x00 },
- { 0x28, 0x00 }, { 0x29, 0x10 },
- { 0x28, 0x05 }, { 0x29, 0x02 },
+ { 0x28, 0x00 }, { 0x2b, 0x08 },
+ { 0x28, 0x05 }, { 0x2b, 0x00 },
{ 0x1c, 0x01 },
- { 0x28, 0x06 }, { 0x29, 0x00 }, { 0x2a, 0x00 }, { 0x2b, 0x03 },
- { 0x28, 0x07 }, { 0x29, 0x00 }, { 0x2a, 0x00 }, { 0x2b, 0x0d },
- { 0x28, 0x08 }, { 0x29, 0x00 }, { 0x2a, 0x00 }, { 0x2b, 0x02 },
- { 0x28, 0x09 }, { 0x29, 0x00 }, { 0x2a, 0x00 }, { 0x2b, 0x01 },
- { 0x28, 0x0a }, { 0x29, 0x00 }, { 0x2a, 0x00 }, { 0x2b, 0x21 },
- { 0x28, 0x0b }, { 0x29, 0x00 }, { 0x2a, 0x00 }, { 0x2b, 0x29 },
- { 0x28, 0x0c }, { 0x29, 0x00 }, { 0x2a, 0x00 }, { 0x2b, 0x16 },
- { 0x28, 0x0d }, { 0x29, 0x00 }, { 0x2a, 0x00 }, { 0x2b, 0x31 },
- { 0x28, 0x0e }, { 0x29, 0x00 }, { 0x2a, 0x00 }, { 0x2b, 0x0e },
- { 0x28, 0x0f }, { 0x29, 0x00 }, { 0x2a, 0x00 }, { 0x2b, 0x4e },
- { 0x28, 0x10 }, { 0x29, 0x00 }, { 0x2a, 0x00 }, { 0x2b, 0x46 },
- { 0x28, 0x11 }, { 0x29, 0x00 }, { 0x2a, 0x00 }, { 0x2b, 0x0f },
- { 0x28, 0x12 }, { 0x29, 0x00 }, { 0x2a, 0x00 }, { 0x2b, 0x56 },
- { 0x28, 0x13 }, { 0x29, 0x00 }, { 0x2a, 0x00 }, { 0x2b, 0x35 },
- { 0x28, 0x14 }, { 0x29, 0x00 }, { 0x2a, 0x01 }, { 0x2b, 0xbe },
- { 0x28, 0x15 }, { 0x29, 0x00 }, { 0x2a, 0x01 }, { 0x2b, 0x84 },
- { 0x28, 0x16 }, { 0x29, 0x00 }, { 0x2a, 0x03 }, { 0x2b, 0xee },
- { 0x28, 0x17 }, { 0x29, 0x00 }, { 0x2a, 0x00 }, { 0x2b, 0x98 },
- { 0x28, 0x18 }, { 0x29, 0x00 }, { 0x2a, 0x00 }, { 0x2b, 0x9f },
- { 0x28, 0x19 }, { 0x29, 0x00 }, { 0x2a, 0x07 }, { 0x2b, 0xb2 },
- { 0x28, 0x1a }, { 0x29, 0x00 }, { 0x2a, 0x06 }, { 0x2b, 0xc2 },
- { 0x28, 0x1b }, { 0x29, 0x00 }, { 0x2a, 0x07 }, { 0x2b, 0x4a },
- { 0x28, 0x1c }, { 0x29, 0x00 }, { 0x2a, 0x01 }, { 0x2b, 0xbc },
- { 0x28, 0x1d }, { 0x29, 0x00 }, { 0x2a, 0x04 }, { 0x2b, 0xba },
- { 0x28, 0x1e }, { 0x29, 0x00 }, { 0x2a, 0x06 }, { 0x2b, 0x14 },
+ { 0x28, 0x06 }, { 0x29, 0x00 }, { 0x2a, 0x00 }, { 0x2b, 0x1f },
+ { 0x28, 0x07 }, { 0x29, 0x00 }, { 0x2a, 0x00 }, { 0x2b, 0x18 },
+ { 0x28, 0x08 }, { 0x29, 0x00 }, { 0x2a, 0x00 }, { 0x2b, 0x12 },
+ { 0x28, 0x09 }, { 0x29, 0x00 }, { 0x2a, 0x00 }, { 0x2b, 0x30 },
+ { 0x28, 0x0a }, { 0x29, 0x00 }, { 0x2a, 0x00 }, { 0x2b, 0x37 },
+ { 0x28, 0x0b }, { 0x29, 0x00 }, { 0x2a, 0x00 }, { 0x2b, 0x02 },
+ { 0x28, 0x0c }, { 0x29, 0x00 }, { 0x2a, 0x00 }, { 0x2b, 0x09 },
+ { 0x28, 0x0d }, { 0x29, 0x00 }, { 0x2a, 0x00 }, { 0x2b, 0x06 },
+ { 0x28, 0x0e }, { 0x29, 0x00 }, { 0x2a, 0x00 }, { 0x2b, 0x7b },
+ { 0x28, 0x0f }, { 0x29, 0x00 }, { 0x2a, 0x00 }, { 0x2b, 0x76 },
+ { 0x28, 0x10 }, { 0x29, 0x00 }, { 0x2a, 0x00 }, { 0x2b, 0x7d },
+ { 0x28, 0x11 }, { 0x29, 0x00 }, { 0x2a, 0x00 }, { 0x2b, 0x08 },
+ { 0x28, 0x12 }, { 0x29, 0x00 }, { 0x2a, 0x00 }, { 0x2b, 0x0b },
+ { 0x28, 0x13 }, { 0x29, 0x00 }, { 0x2a, 0x00 }, { 0x2b, 0x00 },
+ { 0x28, 0x14 }, { 0x29, 0x00 }, { 0x2a, 0x01 }, { 0x2b, 0xf2 },
+ { 0x28, 0x15 }, { 0x29, 0x00 }, { 0x2a, 0x01 }, { 0x2b, 0xf3 },
+ { 0x28, 0x16 }, { 0x29, 0x00 }, { 0x2a, 0x00 }, { 0x2b, 0x05 },
+ { 0x28, 0x17 }, { 0x29, 0x00 }, { 0x2a, 0x00 }, { 0x2b, 0x16 },
+ { 0x28, 0x18 }, { 0x29, 0x00 }, { 0x2a, 0x00 }, { 0x2b, 0x0f },
+ { 0x28, 0x19 }, { 0x29, 0x00 }, { 0x2a, 0x07 }, { 0x2b, 0xef },
+ { 0x28, 0x1a }, { 0x29, 0x00 }, { 0x2a, 0x07 }, { 0x2b, 0xd8 },
+ { 0x28, 0x1b }, { 0x29, 0x00 }, { 0x2a, 0x07 }, { 0x2b, 0xf1 },
+ { 0x28, 0x1c }, { 0x29, 0x00 }, { 0x2a, 0x00 }, { 0x2b, 0x3d },
+ { 0x28, 0x1d }, { 0x29, 0x00 }, { 0x2a, 0x00 }, { 0x2b, 0x94 },
+ { 0x28, 0x1e }, { 0x29, 0x00 }, { 0x2a, 0x00 }, { 0x2b, 0xba },
{ 0x50, 0x1e }, { 0x51, 0x5d },
{ 0x50, 0x22 }, { 0x51, 0x00 },
{ 0x50, 0x23 }, { 0x51, 0xc8 },
@@ -183,6 +201,8 @@ static struct regdata mb86a20s_init[] = {
{ 0x50, 0x26 }, { 0x51, 0x00 },
{ 0x50, 0x27 }, { 0x51, 0xc3 },
{ 0x50, 0x39 }, { 0x51, 0x02 },
+ { 0xec, 0x0f },
+ { 0xeb, 0x1f },
{ 0x28, 0x6a }, { 0x29, 0x00 }, { 0x2a, 0x00 }, { 0x2b, 0x00 },
{ 0xd0, 0x00 },
};
@@ -308,15 +328,23 @@ static int mb86a20s_read_status(struct dvb_frontend *fe, fe_status_t *status)
dev_dbg(&state->i2c->dev, "%s: Status = 0x%02x (state = %d)\n",
__func__, *status, val);
- return 0;
+ return val;
}
static int mb86a20s_read_signal_strength(struct dvb_frontend *fe)
{
struct mb86a20s_state *state = fe->demodulator_priv;
+ struct dtv_frontend_properties *c = &fe->dtv_property_cache;
int rc;
unsigned rf_max, rf_min, rf;
+ if (state->get_strength_time &&
+ (!time_after(jiffies, state->get_strength_time)))
+ return c->strength.stat[0].uvalue;
+
+ /* Reset its value if an error happen */
+ c->strength.stat[0].uvalue = 0;
+
/* Does a binary search to get RF strength */
rf_max = 0xfff;
rf_min = 0;
@@ -331,7 +359,7 @@ static int mb86a20s_read_signal_strength(struct dvb_frontend *fe)
rc = mb86a20s_writereg(state, 0x04, 0x20);
if (rc < 0)
return rc;
- rc = mb86a20s_writereg(state, 0x04, rf);
+ rc = mb86a20s_writereg(state, 0x05, rf);
if (rc < 0)
return rc;
@@ -346,15 +374,19 @@ static int mb86a20s_read_signal_strength(struct dvb_frontend *fe)
rf = (rf_max + rf_min) / 2;
/* Rescale it from 2^12 (4096) to 2^16 */
- rf <<= (16 - 12);
+ rf = rf << (16 - 12);
+ if (rf)
+ rf |= (1 << 12) - 1;
+
dev_dbg(&state->i2c->dev,
"%s: signal strength = %d (%d < RF=%d < %d)\n",
__func__, rf, rf_min, rf >> 4, rf_max);
- return rf;
+ c->strength.stat[0].uvalue = rf;
+ state->get_strength_time = jiffies +
+ msecs_to_jiffies(1000);
+ return 0;
}
} while (1);
-
- return 0;
}
static int mb86a20s_get_modulation(struct mb86a20s_state *state,
@@ -534,12 +566,13 @@ static u32 isdbt_rate[3][5][4] = {
};
static void mb86a20s_layer_bitrate(struct dvb_frontend *fe, u32 layer,
- u32 modulation, u32 fec, u32 interleaving,
+ u32 modulation, u32 forward_error_correction,
+ u32 interleaving,
u32 segment)
{
struct mb86a20s_state *state = fe->demodulator_priv;
u32 rate;
- int m, f, i;
+ int mod, fec, guard;
/*
* If modulation/fec/interleaving is not detected, the default is
@@ -550,54 +583,54 @@ static void mb86a20s_layer_bitrate(struct dvb_frontend *fe, u32 layer,
case DQPSK:
case QPSK:
default:
- m = 0;
+ mod = 0;
break;
case QAM_16:
- m = 1;
+ mod = 1;
break;
case QAM_64:
- m = 2;
+ mod = 2;
break;
}
- switch (fec) {
+ switch (forward_error_correction) {
default:
case FEC_1_2:
case FEC_AUTO:
- f = 0;
+ fec = 0;
break;
case FEC_2_3:
- f = 1;
+ fec = 1;
break;
case FEC_3_4:
- f = 2;
+ fec = 2;
break;
case FEC_5_6:
- f = 3;
+ fec = 3;
break;
case FEC_7_8:
- f = 4;
+ fec = 4;
break;
}
switch (interleaving) {
default:
case GUARD_INTERVAL_1_4:
- i = 0;
+ guard = 0;
break;
case GUARD_INTERVAL_1_8:
- i = 1;
+ guard = 1;
break;
case GUARD_INTERVAL_1_16:
- i = 2;
+ guard = 2;
break;
case GUARD_INTERVAL_1_32:
- i = 3;
+ guard = 3;
break;
}
/* Samples BER at BER_SAMPLING_RATE seconds */
- rate = isdbt_rate[m][f][i] * segment * BER_SAMPLING_RATE;
+ rate = isdbt_rate[mod][fec][guard] * segment * BER_SAMPLING_RATE;
/* Avoids sampling too quickly or to overflow the register */
if (rate < 256)
@@ -607,18 +640,18 @@ static void mb86a20s_layer_bitrate(struct dvb_frontend *fe, u32 layer,
dev_dbg(&state->i2c->dev,
"%s: layer %c bitrate: %d kbps; counter = %d (0x%06x)\n",
- __func__, 'A' + layer, segment * isdbt_rate[m][f][i]/1000,
+ __func__, 'A' + layer,
+ segment * isdbt_rate[mod][fec][guard]/1000,
rate, rate);
state->estimated_rate[layer] = rate;
}
-
static int mb86a20s_get_frontend(struct dvb_frontend *fe)
{
struct mb86a20s_state *state = fe->demodulator_priv;
struct dtv_frontend_properties *c = &fe->dtv_property_cache;
- int i, rc;
+ int layer, rc;
dev_dbg(&state->i2c->dev, "%s called.\n", __func__);
@@ -636,43 +669,43 @@ static int mb86a20s_get_frontend(struct dvb_frontend *fe)
/* Get per-layer data */
- for (i = 0; i < 3; i++) {
+ for (layer = 0; layer < NUM_LAYERS; layer++) {
dev_dbg(&state->i2c->dev, "%s: getting data for layer %c.\n",
- __func__, 'A' + i);
+ __func__, 'A' + layer);
- rc = mb86a20s_get_segment_count(state, i);
+ rc = mb86a20s_get_segment_count(state, layer);
if (rc < 0)
goto noperlayer_error;
if (rc >= 0 && rc < 14) {
- c->layer[i].segment_count = rc;
+ c->layer[layer].segment_count = rc;
} else {
- c->layer[i].segment_count = 0;
- state->estimated_rate[i] = 0;
+ c->layer[layer].segment_count = 0;
+ state->estimated_rate[layer] = 0;
continue;
}
- c->isdbt_layer_enabled |= 1 << i;
- rc = mb86a20s_get_modulation(state, i);
+ c->isdbt_layer_enabled |= 1 << layer;
+ rc = mb86a20s_get_modulation(state, layer);
if (rc < 0)
goto noperlayer_error;
dev_dbg(&state->i2c->dev, "%s: modulation %d.\n",
__func__, rc);
- c->layer[i].modulation = rc;
- rc = mb86a20s_get_fec(state, i);
+ c->layer[layer].modulation = rc;
+ rc = mb86a20s_get_fec(state, layer);
if (rc < 0)
goto noperlayer_error;
dev_dbg(&state->i2c->dev, "%s: FEC %d.\n",
__func__, rc);
- c->layer[i].fec = rc;
- rc = mb86a20s_get_interleaving(state, i);
+ c->layer[layer].fec = rc;
+ rc = mb86a20s_get_interleaving(state, layer);
if (rc < 0)
goto noperlayer_error;
dev_dbg(&state->i2c->dev, "%s: interleaving %d.\n",
__func__, rc);
- c->layer[i].interleaving = rc;
- mb86a20s_layer_bitrate(fe, i, c->layer[i].modulation,
- c->layer[i].fec,
- c->layer[i].interleaving,
- c->layer[i].segment_count);
+ c->layer[layer].interleaving = rc;
+ mb86a20s_layer_bitrate(fe, layer, c->layer[layer].modulation,
+ c->layer[layer].fec,
+ c->layer[layer].interleaving,
+ c->layer[layer].segment_count);
}
rc = mb86a20s_writereg(state, 0x6d, 0x84);
@@ -735,7 +768,6 @@ static int mb86a20s_reset_counters(struct dvb_frontend *fe)
/* Reset the counters, if the channel changed */
if (state->last_frequency != c->frequency) {
- memset(&c->strength, 0, sizeof(c->strength));
memset(&c->cnr, 0, sizeof(c->cnr));
memset(&c->pre_bit_error, 0, sizeof(c->pre_bit_error));
memset(&c->pre_bit_count, 0, sizeof(c->pre_bit_count));
@@ -799,7 +831,7 @@ static int mb86a20s_get_pre_ber(struct dvb_frontend *fe,
dev_dbg(&state->i2c->dev, "%s called.\n", __func__);
- if (layer >= 3)
+ if (layer >= NUM_LAYERS)
return -EINVAL;
/* Check if the BER measures are already available */
@@ -933,7 +965,7 @@ static int mb86a20s_get_post_ber(struct dvb_frontend *fe,
dev_dbg(&state->i2c->dev, "%s called.\n", __func__);
- if (layer >= 3)
+ if (layer >= NUM_LAYERS)
return -EINVAL;
/* Check if the BER measures are already available */
@@ -1060,7 +1092,7 @@ static int mb86a20s_get_blk_error(struct dvb_frontend *fe,
u32 collect_rate;
dev_dbg(&state->i2c->dev, "%s called.\n", __func__);
- if (layer >= 3)
+ if (layer >= NUM_LAYERS)
return -EINVAL;
/* Check if the PER measures are already available */
@@ -1095,7 +1127,7 @@ static int mb86a20s_get_blk_error(struct dvb_frontend *fe,
if (rc < 0)
return rc;
*error |= rc;
- dev_err(&state->i2c->dev, "%s: block error for layer %c: %d.\n",
+ dev_dbg(&state->i2c->dev, "%s: block error for layer %c: %d.\n",
__func__, 'A' + layer, *error);
/* Read Bit Count */
@@ -1386,7 +1418,7 @@ static int mb86a20s_get_main_CNR(struct dvb_frontend *fe)
return rc;
if (!(rc & 0x40)) {
- dev_info(&state->i2c->dev, "%s: CNR is not available yet.\n",
+ dev_dbg(&state->i2c->dev, "%s: CNR is not available yet.\n",
__func__);
return -EBUSY;
}
@@ -1425,7 +1457,7 @@ static int mb86a20s_get_blk_error_layer_CNR(struct dvb_frontend *fe)
struct mb86a20s_state *state = fe->demodulator_priv;
struct dtv_frontend_properties *c = &fe->dtv_property_cache;
u32 mer, cnr;
- int rc, val, i;
+ int rc, val, layer;
struct linear_segments *segs;
unsigned segs_len;
@@ -1441,33 +1473,33 @@ static int mb86a20s_get_blk_error_layer_CNR(struct dvb_frontend *fe)
/* Check if data is available */
if (!(rc & 0x01)) {
- dev_info(&state->i2c->dev,
+ dev_dbg(&state->i2c->dev,
"%s: MER measures aren't available yet.\n", __func__);
return -EBUSY;
}
/* Read all layers */
- for (i = 0; i < 3; i++) {
- if (!(c->isdbt_layer_enabled & (1 << i))) {
- c->cnr.stat[1 + i].scale = FE_SCALE_NOT_AVAILABLE;
+ for (layer = 0; layer < NUM_LAYERS; layer++) {
+ if (!(c->isdbt_layer_enabled & (1 << layer))) {
+ c->cnr.stat[1 + layer].scale = FE_SCALE_NOT_AVAILABLE;
continue;
}
- rc = mb86a20s_writereg(state, 0x50, 0x52 + i * 3);
+ rc = mb86a20s_writereg(state, 0x50, 0x52 + layer * 3);
if (rc < 0)
return rc;
rc = mb86a20s_readreg(state, 0x51);
if (rc < 0)
return rc;
mer = rc << 16;
- rc = mb86a20s_writereg(state, 0x50, 0x53 + i * 3);
+ rc = mb86a20s_writereg(state, 0x50, 0x53 + layer * 3);
if (rc < 0)
return rc;
rc = mb86a20s_readreg(state, 0x51);
if (rc < 0)
return rc;
mer |= rc << 8;
- rc = mb86a20s_writereg(state, 0x50, 0x54 + i * 3);
+ rc = mb86a20s_writereg(state, 0x50, 0x54 + layer * 3);
if (rc < 0)
return rc;
rc = mb86a20s_readreg(state, 0x51);
@@ -1475,7 +1507,7 @@ static int mb86a20s_get_blk_error_layer_CNR(struct dvb_frontend *fe)
return rc;
mer |= rc;
- switch (c->layer[i].modulation) {
+ switch (c->layer[layer].modulation) {
case DQPSK:
case QPSK:
segs = cnr_qpsk_table;
@@ -1493,12 +1525,12 @@ static int mb86a20s_get_blk_error_layer_CNR(struct dvb_frontend *fe)
}
cnr = interpolate_value(mer, segs, segs_len);
- c->cnr.stat[1 + i].scale = FE_SCALE_DECIBEL;
- c->cnr.stat[1 + i].svalue = cnr;
+ c->cnr.stat[1 + layer].scale = FE_SCALE_DECIBEL;
+ c->cnr.stat[1 + layer].svalue = cnr;
dev_dbg(&state->i2c->dev,
"%s: CNR for layer %c is %d.%03d dB (MER = %d).\n",
- __func__, 'A' + i, cnr / 1000, cnr % 1000, mer);
+ __func__, 'A' + layer, cnr / 1000, cnr % 1000, mer);
}
@@ -1526,7 +1558,7 @@ static void mb86a20s_stats_not_ready(struct dvb_frontend *fe)
{
struct mb86a20s_state *state = fe->demodulator_priv;
struct dtv_frontend_properties *c = &fe->dtv_property_cache;
- int i;
+ int layer;
dev_dbg(&state->i2c->dev, "%s called.\n", __func__);
@@ -1536,35 +1568,35 @@ static void mb86a20s_stats_not_ready(struct dvb_frontend *fe)
c->strength.len = 1;
/* Per-layer stats - 3 layers + global */
- c->cnr.len = 4;
- c->pre_bit_error.len = 4;
- c->pre_bit_count.len = 4;
- c->post_bit_error.len = 4;
- c->post_bit_count.len = 4;
- c->block_error.len = 4;
- c->block_count.len = 4;
+ c->cnr.len = NUM_LAYERS + 1;
+ c->pre_bit_error.len = NUM_LAYERS + 1;
+ c->pre_bit_count.len = NUM_LAYERS + 1;
+ c->post_bit_error.len = NUM_LAYERS + 1;
+ c->post_bit_count.len = NUM_LAYERS + 1;
+ c->block_error.len = NUM_LAYERS + 1;
+ c->block_count.len = NUM_LAYERS + 1;
/* Signal is always available */
c->strength.stat[0].scale = FE_SCALE_RELATIVE;
c->strength.stat[0].uvalue = 0;
/* Put all of them at FE_SCALE_NOT_AVAILABLE */
- for (i = 0; i < 4; i++) {
- c->cnr.stat[i].scale = FE_SCALE_NOT_AVAILABLE;
- c->pre_bit_error.stat[i].scale = FE_SCALE_NOT_AVAILABLE;
- c->pre_bit_count.stat[i].scale = FE_SCALE_NOT_AVAILABLE;
- c->post_bit_error.stat[i].scale = FE_SCALE_NOT_AVAILABLE;
- c->post_bit_count.stat[i].scale = FE_SCALE_NOT_AVAILABLE;
- c->block_error.stat[i].scale = FE_SCALE_NOT_AVAILABLE;
- c->block_count.stat[i].scale = FE_SCALE_NOT_AVAILABLE;
+ for (layer = 0; layer < NUM_LAYERS + 1; layer++) {
+ c->cnr.stat[layer].scale = FE_SCALE_NOT_AVAILABLE;
+ c->pre_bit_error.stat[layer].scale = FE_SCALE_NOT_AVAILABLE;
+ c->pre_bit_count.stat[layer].scale = FE_SCALE_NOT_AVAILABLE;
+ c->post_bit_error.stat[layer].scale = FE_SCALE_NOT_AVAILABLE;
+ c->post_bit_count.stat[layer].scale = FE_SCALE_NOT_AVAILABLE;
+ c->block_error.stat[layer].scale = FE_SCALE_NOT_AVAILABLE;
+ c->block_count.stat[layer].scale = FE_SCALE_NOT_AVAILABLE;
}
}
-static int mb86a20s_get_stats(struct dvb_frontend *fe)
+static int mb86a20s_get_stats(struct dvb_frontend *fe, int status_nr)
{
struct mb86a20s_state *state = fe->demodulator_priv;
struct dtv_frontend_properties *c = &fe->dtv_property_cache;
- int rc = 0, i;
+ int rc = 0, layer;
u32 bit_error = 0, bit_count = 0;
u32 t_pre_bit_error = 0, t_pre_bit_count = 0;
u32 t_post_bit_error = 0, t_post_bit_count = 0;
@@ -1580,90 +1612,98 @@ static int mb86a20s_get_stats(struct dvb_frontend *fe)
/* Get per-layer stats */
mb86a20s_get_blk_error_layer_CNR(fe);
- for (i = 0; i < 3; i++) {
- if (c->isdbt_layer_enabled & (1 << i)) {
+ /*
+ * At state 7, only CNR is available
+ * For BER measures, state=9 is required
+ * FIXME: we may get MER measures with state=8
+ */
+ if (status_nr < 9)
+ return 0;
+
+ for (layer = 0; layer < NUM_LAYERS; layer++) {
+ if (c->isdbt_layer_enabled & (1 << layer)) {
/* Layer is active and has rc segments */
active_layers++;
/* Handle BER before vterbi */
- rc = mb86a20s_get_pre_ber(fe, i,
+ rc = mb86a20s_get_pre_ber(fe, layer,
&bit_error, &bit_count);
if (rc >= 0) {
- c->pre_bit_error.stat[1 + i].scale = FE_SCALE_COUNTER;
- c->pre_bit_error.stat[1 + i].uvalue += bit_error;
- c->pre_bit_count.stat[1 + i].scale = FE_SCALE_COUNTER;
- c->pre_bit_count.stat[1 + i].uvalue += bit_count;
+ c->pre_bit_error.stat[1 + layer].scale = FE_SCALE_COUNTER;
+ c->pre_bit_error.stat[1 + layer].uvalue += bit_error;
+ c->pre_bit_count.stat[1 + layer].scale = FE_SCALE_COUNTER;
+ c->pre_bit_count.stat[1 + layer].uvalue += bit_count;
} else if (rc != -EBUSY) {
/*
* If an I/O error happened,
* measures are now unavailable
*/
- c->pre_bit_error.stat[1 + i].scale = FE_SCALE_NOT_AVAILABLE;
- c->pre_bit_count.stat[1 + i].scale = FE_SCALE_NOT_AVAILABLE;
+ c->pre_bit_error.stat[1 + layer].scale = FE_SCALE_NOT_AVAILABLE;
+ c->pre_bit_count.stat[1 + layer].scale = FE_SCALE_NOT_AVAILABLE;
dev_err(&state->i2c->dev,
"%s: Can't get BER for layer %c (error %d).\n",
- __func__, 'A' + i, rc);
+ __func__, 'A' + layer, rc);
}
- if (c->block_error.stat[1 + i].scale != FE_SCALE_NOT_AVAILABLE)
+ if (c->block_error.stat[1 + layer].scale != FE_SCALE_NOT_AVAILABLE)
pre_ber_layers++;
/* Handle BER post vterbi */
- rc = mb86a20s_get_post_ber(fe, i,
+ rc = mb86a20s_get_post_ber(fe, layer,
&bit_error, &bit_count);
if (rc >= 0) {
- c->post_bit_error.stat[1 + i].scale = FE_SCALE_COUNTER;
- c->post_bit_error.stat[1 + i].uvalue += bit_error;
- c->post_bit_count.stat[1 + i].scale = FE_SCALE_COUNTER;
- c->post_bit_count.stat[1 + i].uvalue += bit_count;
+ c->post_bit_error.stat[1 + layer].scale = FE_SCALE_COUNTER;
+ c->post_bit_error.stat[1 + layer].uvalue += bit_error;
+ c->post_bit_count.stat[1 + layer].scale = FE_SCALE_COUNTER;
+ c->post_bit_count.stat[1 + layer].uvalue += bit_count;
} else if (rc != -EBUSY) {
/*
* If an I/O error happened,
* measures are now unavailable
*/
- c->post_bit_error.stat[1 + i].scale = FE_SCALE_NOT_AVAILABLE;
- c->post_bit_count.stat[1 + i].scale = FE_SCALE_NOT_AVAILABLE;
+ c->post_bit_error.stat[1 + layer].scale = FE_SCALE_NOT_AVAILABLE;
+ c->post_bit_count.stat[1 + layer].scale = FE_SCALE_NOT_AVAILABLE;
dev_err(&state->i2c->dev,
"%s: Can't get BER for layer %c (error %d).\n",
- __func__, 'A' + i, rc);
+ __func__, 'A' + layer, rc);
}
- if (c->block_error.stat[1 + i].scale != FE_SCALE_NOT_AVAILABLE)
+ if (c->block_error.stat[1 + layer].scale != FE_SCALE_NOT_AVAILABLE)
post_ber_layers++;
/* Handle Block errors for PER/UCB reports */
- rc = mb86a20s_get_blk_error(fe, i,
+ rc = mb86a20s_get_blk_error(fe, layer,
&block_error,
&block_count);
if (rc >= 0) {
- c->block_error.stat[1 + i].scale = FE_SCALE_COUNTER;
- c->block_error.stat[1 + i].uvalue += block_error;
- c->block_count.stat[1 + i].scale = FE_SCALE_COUNTER;
- c->block_count.stat[1 + i].uvalue += block_count;
+ c->block_error.stat[1 + layer].scale = FE_SCALE_COUNTER;
+ c->block_error.stat[1 + layer].uvalue += block_error;
+ c->block_count.stat[1 + layer].scale = FE_SCALE_COUNTER;
+ c->block_count.stat[1 + layer].uvalue += block_count;
} else if (rc != -EBUSY) {
/*
* If an I/O error happened,
* measures are now unavailable
*/
- c->block_error.stat[1 + i].scale = FE_SCALE_NOT_AVAILABLE;
- c->block_count.stat[1 + i].scale = FE_SCALE_NOT_AVAILABLE;
+ c->block_error.stat[1 + layer].scale = FE_SCALE_NOT_AVAILABLE;
+ c->block_count.stat[1 + layer].scale = FE_SCALE_NOT_AVAILABLE;
dev_err(&state->i2c->dev,
"%s: Can't get PER for layer %c (error %d).\n",
- __func__, 'A' + i, rc);
+ __func__, 'A' + layer, rc);
}
- if (c->block_error.stat[1 + i].scale != FE_SCALE_NOT_AVAILABLE)
+ if (c->block_error.stat[1 + layer].scale != FE_SCALE_NOT_AVAILABLE)
per_layers++;
/* Update total preBER */
- t_pre_bit_error += c->pre_bit_error.stat[1 + i].uvalue;
- t_pre_bit_count += c->pre_bit_count.stat[1 + i].uvalue;
+ t_pre_bit_error += c->pre_bit_error.stat[1 + layer].uvalue;
+ t_pre_bit_count += c->pre_bit_count.stat[1 + layer].uvalue;
/* Update total postBER */
- t_post_bit_error += c->post_bit_error.stat[1 + i].uvalue;
- t_post_bit_count += c->post_bit_count.stat[1 + i].uvalue;
+ t_post_bit_error += c->post_bit_error.stat[1 + layer].uvalue;
+ t_post_bit_count += c->post_bit_count.stat[1 + layer].uvalue;
/* Update total PER */
- t_block_error += c->block_error.stat[1 + i].uvalue;
- t_block_count += c->block_count.stat[1 + i].uvalue;
+ t_block_error += c->block_error.stat[1 + layer].uvalue;
+ t_block_count += c->block_count.stat[1 + layer].uvalue;
}
}
@@ -1737,8 +1777,10 @@ static int mb86a20s_get_stats(struct dvb_frontend *fe)
static int mb86a20s_initfe(struct dvb_frontend *fe)
{
struct mb86a20s_state *state = fe->demodulator_priv;
+ u64 pll;
+ u32 fclk;
int rc;
- u8 regD5 = 1;
+ u8 regD5 = 1, reg71, reg09 = 0x3a;
dev_dbg(&state->i2c->dev, "%s called.\n", __func__);
@@ -1746,10 +1788,78 @@ static int mb86a20s_initfe(struct dvb_frontend *fe)
fe->ops.i2c_gate_ctrl(fe, 0);
/* Initialize the frontend */
- rc = mb86a20s_writeregdata(state, mb86a20s_init);
+ rc = mb86a20s_writeregdata(state, mb86a20s_init1);
if (rc < 0)
goto err;
+ if (!state->inversion)
+ reg09 |= 0x04;
+ rc = mb86a20s_writereg(state, 0x09, reg09);
+ if (rc < 0)
+ goto err;
+ if (!state->bw)
+ reg71 = 1;
+ else
+ reg71 = 0;
+ rc = mb86a20s_writereg(state, 0x39, reg71);
+ if (rc < 0)
+ goto err;
+ rc = mb86a20s_writereg(state, 0x71, state->bw);
+ if (rc < 0)
+ goto err;
+ if (state->subchannel) {
+ rc = mb86a20s_writereg(state, 0x44, state->subchannel);
+ if (rc < 0)
+ goto err;
+ }
+
+ fclk = state->config->fclk;
+ if (!fclk)
+ fclk = 32571428;
+
+ /* Adjust IF frequency to match tuner */
+ if (fe->ops.tuner_ops.get_if_frequency)
+ fe->ops.tuner_ops.get_if_frequency(fe, &state->if_freq);
+
+ if (!state->if_freq)
+ state->if_freq = 3300000;
+
+ pll = (((u64)1) << 34) * state->if_freq;
+ do_div(pll, 63 * fclk);
+ pll = (1 << 25) - pll;
+ rc = mb86a20s_writereg(state, 0x28, 0x2a);
+ if (rc < 0)
+ goto err;
+ rc = mb86a20s_writereg(state, 0x29, (pll >> 16) & 0xff);
+ if (rc < 0)
+ goto err;
+ rc = mb86a20s_writereg(state, 0x2a, (pll >> 8) & 0xff);
+ if (rc < 0)
+ goto err;
+ rc = mb86a20s_writereg(state, 0x2b, pll & 0xff);
+ if (rc < 0)
+ goto err;
+ dev_dbg(&state->i2c->dev, "%s: fclk=%d, IF=%d, clock reg=0x%06llx\n",
+ __func__, fclk, state->if_freq, (long long)pll);
+
+ /* pll = freq[Hz] * 2^24/10^6 / 16.285714286 */
+ pll = state->if_freq * 1677721600L;
+ do_div(pll, 1628571429L);
+ rc = mb86a20s_writereg(state, 0x28, 0x20);
+ if (rc < 0)
+ goto err;
+ rc = mb86a20s_writereg(state, 0x29, (pll >> 16) & 0xff);
+ if (rc < 0)
+ goto err;
+ rc = mb86a20s_writereg(state, 0x2a, (pll >> 8) & 0xff);
+ if (rc < 0)
+ goto err;
+ rc = mb86a20s_writereg(state, 0x2b, pll & 0xff);
+ if (rc < 0)
+ goto err;
+ dev_dbg(&state->i2c->dev, "%s: IF=%d, IF reg=0x%06llx\n",
+ __func__, state->if_freq, (long long)pll);
+
if (!state->config->is_serial) {
regD5 &= ~1;
@@ -1761,6 +1871,11 @@ static int mb86a20s_initfe(struct dvb_frontend *fe)
goto err;
}
+ rc = mb86a20s_writeregdata(state, mb86a20s_init2);
+ if (rc < 0)
+ goto err;
+
+
err:
if (fe->ops.i2c_gate_ctrl)
fe->ops.i2c_gate_ctrl(fe, 1);
@@ -1779,15 +1894,34 @@ err:
static int mb86a20s_set_frontend(struct dvb_frontend *fe)
{
struct mb86a20s_state *state = fe->demodulator_priv;
- int rc;
-#if 0
- /*
- * FIXME: Properly implement the set frontend properties
- */
struct dtv_frontend_properties *c = &fe->dtv_property_cache;
-#endif
+ int rc, if_freq;
dev_dbg(&state->i2c->dev, "%s called.\n", __func__);
+ if (!c->isdbt_layer_enabled)
+ c->isdbt_layer_enabled = 7;
+
+ if (c->isdbt_layer_enabled == 1)
+ state->bw = MB86A20S_1SEG;
+ else if (c->isdbt_partial_reception)
+ state->bw = MB86A20S_13SEG_PARTIAL;
+ else
+ state->bw = MB86A20S_13SEG;
+
+ if (c->inversion == INVERSION_ON)
+ state->inversion = true;
+ else
+ state->inversion = false;
+
+ if (!c->isdbt_sb_mode) {
+ state->subchannel = 0;
+ } else {
+ if (c->isdbt_sb_subchannel >= ARRAY_SIZE(mb86a20s_subchannel))
+ c->isdbt_sb_subchannel = 0;
+
+ state->subchannel = mb86a20s_subchannel[c->isdbt_sb_subchannel];
+ }
+
/*
* Gate should already be opened, but it doesn't hurt to
* double-check
@@ -1796,6 +1930,9 @@ static int mb86a20s_set_frontend(struct dvb_frontend *fe)
fe->ops.i2c_gate_ctrl(fe, 1);
fe->ops.tuner_ops.set_params(fe);
+ if (fe->ops.tuner_ops.get_if_frequency)
+ fe->ops.tuner_ops.get_if_frequency(fe, &if_freq);
+
/*
* Make it more reliable: if, for some reason, the initial
* device initialization doesn't happen, initialize it when
@@ -1805,15 +1942,22 @@ static int mb86a20s_set_frontend(struct dvb_frontend *fe)
* the agc callback logic is not called during DVB attach time,
* causing mb86a20s to not be initialized with Kworld SBTVD.
* So, this hack is needed, in order to make Kworld SBTVD to work.
+ *
+ * It is also needed to change the IF after the initial init.
+ *
+ * HACK: Always init the frontend when set_frontend is called:
+ * it was noticed that, on some devices, it fails to lock on a
+ * different channel. So, it is better to reset everything, even
+ * wasting some time, than to loose channel lock.
*/
- if (state->need_init)
- mb86a20s_initfe(fe);
+ mb86a20s_initfe(fe);
if (fe->ops.i2c_gate_ctrl)
fe->ops.i2c_gate_ctrl(fe, 0);
rc = mb86a20s_writeregdata(state, mb86a20s_reset_reception);
mb86a20s_reset_counters(fe);
+ mb86a20s_stats_not_ready(fe);
if (fe->ops.i2c_gate_ctrl)
fe->ops.i2c_gate_ctrl(fe, 1);
@@ -1825,8 +1969,7 @@ static int mb86a20s_read_status_and_stats(struct dvb_frontend *fe,
fe_status_t *status)
{
struct mb86a20s_state *state = fe->demodulator_priv;
- struct dtv_frontend_properties *c = &fe->dtv_property_cache;
- int rc;
+ int rc, status_nr;
dev_dbg(&state->i2c->dev, "%s called.\n", __func__);
@@ -1834,12 +1977,12 @@ static int mb86a20s_read_status_and_stats(struct dvb_frontend *fe,
fe->ops.i2c_gate_ctrl(fe, 0);
/* Get lock */
- rc = mb86a20s_read_status(fe, status);
- if (!(*status & FE_HAS_LOCK)) {
+ status_nr = mb86a20s_read_status(fe, status);
+ if (status_nr < 7) {
mb86a20s_stats_not_ready(fe);
mb86a20s_reset_frontend_cache(fe);
}
- if (rc < 0) {
+ if (status_nr < 0) {
dev_err(&state->i2c->dev,
"%s: Can't read frontend lock status\n", __func__);
goto error;
@@ -1856,10 +1999,8 @@ static int mb86a20s_read_status_and_stats(struct dvb_frontend *fe,
rc = 0; /* Status is OK */
goto error;
}
- /* Fill signal strength */
- c->strength.stat[0].uvalue = rc;
- if (*status & FE_HAS_LOCK) {
+ if (status_nr >= 7) {
/* Get TMCC info*/
rc = mb86a20s_get_frontend(fe);
if (rc < 0) {
@@ -1870,7 +2011,7 @@ static int mb86a20s_read_status_and_stats(struct dvb_frontend *fe,
}
/* Get statistics */
- rc = mb86a20s_get_stats(fe);
+ rc = mb86a20s_get_stats(fe, status_nr);
if (rc < 0 && rc != -EBUSY) {
dev_err(&state->i2c->dev,
"%s: Can't get FE statistics.\n", __func__);
@@ -1994,7 +2135,7 @@ static struct dvb_frontend_ops mb86a20s_ops = {
/* Use dib8000 values per default */
.info = {
.name = "Fujitsu mb86A20s",
- .caps = FE_CAN_INVERSION_AUTO | FE_CAN_RECOVER |
+ .caps = FE_CAN_RECOVER |
FE_CAN_FEC_1_2 | FE_CAN_FEC_2_3 | FE_CAN_FEC_3_4 |
FE_CAN_FEC_5_6 | FE_CAN_FEC_7_8 | FE_CAN_FEC_AUTO |
FE_CAN_QPSK | FE_CAN_QAM_16 | FE_CAN_QAM_64 |
generated by cgit v0.10.2 at 2024-07-13 03:06:32 (GMT)