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path: root/drivers/media/dvb/frontends/af9013.c
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Diffstat (limited to 'drivers/media/dvb/frontends/af9013.c')
-rw-r--r--drivers/media/dvb/frontends/af9013.c251
1 files changed, 64 insertions, 187 deletions
diff --git a/drivers/media/dvb/frontends/af9013.c b/drivers/media/dvb/frontends/af9013.c
index dac917f7bb7f..e2a95c07bab4 100644
--- a/drivers/media/dvb/frontends/af9013.c
+++ b/drivers/media/dvb/frontends/af9013.c
@@ -42,6 +42,8 @@ struct af9013_state {
struct af9013_config config;
+ /* tuner/demod RF and IF AGC limits used for signal strength calc */
+ u8 signal_strength_en, rf_50, rf_80, if_50, if_80;
u16 signal_strength;
u32 ber;
u32 ucblocks;
@@ -220,184 +222,37 @@ static u32 af913_div(u32 a, u32 b, u32 x)
static int af9013_set_coeff(struct af9013_state *state, fe_bandwidth_t bw)
{
- int ret = 0;
- u8 i = 0;
- u8 buf[24];
- u32 uninitialized_var(ns_coeff1_2048nu);
- u32 uninitialized_var(ns_coeff1_8191nu);
- u32 uninitialized_var(ns_coeff1_8192nu);
- u32 uninitialized_var(ns_coeff1_8193nu);
- u32 uninitialized_var(ns_coeff2_2k);
- u32 uninitialized_var(ns_coeff2_8k);
-
+ int ret, i, j, found;
deb_info("%s: adc_clock:%d bw:%d\n", __func__,
state->config.adc_clock, bw);
- switch (state->config.adc_clock) {
- case 28800: /* 28.800 MHz */
- switch (bw) {
- case BANDWIDTH_6_MHZ:
- ns_coeff1_2048nu = 0x01e79e7a;
- ns_coeff1_8191nu = 0x0079eb6e;
- ns_coeff1_8192nu = 0x0079e79e;
- ns_coeff1_8193nu = 0x0079e3cf;
- ns_coeff2_2k = 0x00f3cf3d;
- ns_coeff2_8k = 0x003cf3cf;
- break;
- case BANDWIDTH_7_MHZ:
- ns_coeff1_2048nu = 0x0238e38e;
- ns_coeff1_8191nu = 0x008e3d55;
- ns_coeff1_8192nu = 0x008e38e4;
- ns_coeff1_8193nu = 0x008e3472;
- ns_coeff2_2k = 0x011c71c7;
- ns_coeff2_8k = 0x00471c72;
+ /* lookup coeff from table */
+ for (i = 0, found = 0; i < ARRAY_SIZE(coeff_table); i++) {
+ if (coeff_table[i].adc_clock == state->config.adc_clock &&
+ coeff_table[i].bw == bw) {
+ found = 1;
break;
- case BANDWIDTH_8_MHZ:
- ns_coeff1_2048nu = 0x028a28a3;
- ns_coeff1_8191nu = 0x00a28f3d;
- ns_coeff1_8192nu = 0x00a28a29;
- ns_coeff1_8193nu = 0x00a28514;
- ns_coeff2_2k = 0x01451451;
- ns_coeff2_8k = 0x00514514;
- break;
- default:
- ret = -EINVAL;
}
- break;
- case 20480: /* 20.480 MHz */
- switch (bw) {
- case BANDWIDTH_6_MHZ:
- ns_coeff1_2048nu = 0x02adb6dc;
- ns_coeff1_8191nu = 0x00ab7313;
- ns_coeff1_8192nu = 0x00ab6db7;
- ns_coeff1_8193nu = 0x00ab685c;
- ns_coeff2_2k = 0x0156db6e;
- ns_coeff2_8k = 0x0055b6dc;
- break;
- case BANDWIDTH_7_MHZ:
- ns_coeff1_2048nu = 0x03200001;
- ns_coeff1_8191nu = 0x00c80640;
- ns_coeff1_8192nu = 0x00c80000;
- ns_coeff1_8193nu = 0x00c7f9c0;
- ns_coeff2_2k = 0x01900000;
- ns_coeff2_8k = 0x00640000;
- break;
- case BANDWIDTH_8_MHZ:
- ns_coeff1_2048nu = 0x03924926;
- ns_coeff1_8191nu = 0x00e4996e;
- ns_coeff1_8192nu = 0x00e49249;
- ns_coeff1_8193nu = 0x00e48b25;
- ns_coeff2_2k = 0x01c92493;
- ns_coeff2_8k = 0x00724925;
- break;
- default:
- ret = -EINVAL;
- }
- break;
- case 28000: /* 28.000 MHz */
- switch (bw) {
- case BANDWIDTH_6_MHZ:
- ns_coeff1_2048nu = 0x01f58d10;
- ns_coeff1_8191nu = 0x007d672f;
- ns_coeff1_8192nu = 0x007d6344;
- ns_coeff1_8193nu = 0x007d5f59;
- ns_coeff2_2k = 0x00fac688;
- ns_coeff2_8k = 0x003eb1a2;
- break;
- case BANDWIDTH_7_MHZ:
- ns_coeff1_2048nu = 0x02492492;
- ns_coeff1_8191nu = 0x00924db7;
- ns_coeff1_8192nu = 0x00924925;
- ns_coeff1_8193nu = 0x00924492;
- ns_coeff2_2k = 0x01249249;
- ns_coeff2_8k = 0x00492492;
- break;
- case BANDWIDTH_8_MHZ:
- ns_coeff1_2048nu = 0x029cbc15;
- ns_coeff1_8191nu = 0x00a7343f;
- ns_coeff1_8192nu = 0x00a72f05;
- ns_coeff1_8193nu = 0x00a729cc;
- ns_coeff2_2k = 0x014e5e0a;
- ns_coeff2_8k = 0x00539783;
- break;
- default:
- ret = -EINVAL;
- }
- break;
- case 25000: /* 25.000 MHz */
- switch (bw) {
- case BANDWIDTH_6_MHZ:
- ns_coeff1_2048nu = 0x0231bcb5;
- ns_coeff1_8191nu = 0x008c7391;
- ns_coeff1_8192nu = 0x008c6f2d;
- ns_coeff1_8193nu = 0x008c6aca;
- ns_coeff2_2k = 0x0118de5b;
- ns_coeff2_8k = 0x00463797;
- break;
- case BANDWIDTH_7_MHZ:
- ns_coeff1_2048nu = 0x028f5c29;
- ns_coeff1_8191nu = 0x00a3dc29;
- ns_coeff1_8192nu = 0x00a3d70a;
- ns_coeff1_8193nu = 0x00a3d1ec;
- ns_coeff2_2k = 0x0147ae14;
- ns_coeff2_8k = 0x0051eb85;
- break;
- case BANDWIDTH_8_MHZ:
- ns_coeff1_2048nu = 0x02ecfb9d;
- ns_coeff1_8191nu = 0x00bb44c1;
- ns_coeff1_8192nu = 0x00bb3ee7;
- ns_coeff1_8193nu = 0x00bb390d;
- ns_coeff2_2k = 0x01767dce;
- ns_coeff2_8k = 0x005d9f74;
- break;
- default:
- ret = -EINVAL;
- }
- break;
- default:
- err("invalid xtal");
- return -EINVAL;
}
- if (ret) {
- err("invalid bandwidth");
- return ret;
+
+ if (!found) {
+ err("invalid bw or clock");
+ ret = -EINVAL;
+ goto error;
}
- buf[i++] = (u8) ((ns_coeff1_2048nu & 0x03000000) >> 24);
- buf[i++] = (u8) ((ns_coeff1_2048nu & 0x00ff0000) >> 16);
- buf[i++] = (u8) ((ns_coeff1_2048nu & 0x0000ff00) >> 8);
- buf[i++] = (u8) ((ns_coeff1_2048nu & 0x000000ff));
- buf[i++] = (u8) ((ns_coeff2_2k & 0x01c00000) >> 22);
- buf[i++] = (u8) ((ns_coeff2_2k & 0x003fc000) >> 14);
- buf[i++] = (u8) ((ns_coeff2_2k & 0x00003fc0) >> 6);
- buf[i++] = (u8) ((ns_coeff2_2k & 0x0000003f));
- buf[i++] = (u8) ((ns_coeff1_8191nu & 0x03000000) >> 24);
- buf[i++] = (u8) ((ns_coeff1_8191nu & 0x00ffc000) >> 16);
- buf[i++] = (u8) ((ns_coeff1_8191nu & 0x0000ff00) >> 8);
- buf[i++] = (u8) ((ns_coeff1_8191nu & 0x000000ff));
- buf[i++] = (u8) ((ns_coeff1_8192nu & 0x03000000) >> 24);
- buf[i++] = (u8) ((ns_coeff1_8192nu & 0x00ffc000) >> 16);
- buf[i++] = (u8) ((ns_coeff1_8192nu & 0x0000ff00) >> 8);
- buf[i++] = (u8) ((ns_coeff1_8192nu & 0x000000ff));
- buf[i++] = (u8) ((ns_coeff1_8193nu & 0x03000000) >> 24);
- buf[i++] = (u8) ((ns_coeff1_8193nu & 0x00ffc000) >> 16);
- buf[i++] = (u8) ((ns_coeff1_8193nu & 0x0000ff00) >> 8);
- buf[i++] = (u8) ((ns_coeff1_8193nu & 0x000000ff));
- buf[i++] = (u8) ((ns_coeff2_8k & 0x01c00000) >> 22);
- buf[i++] = (u8) ((ns_coeff2_8k & 0x003fc000) >> 14);
- buf[i++] = (u8) ((ns_coeff2_8k & 0x00003fc0) >> 6);
- buf[i++] = (u8) ((ns_coeff2_8k & 0x0000003f));
-
- deb_info("%s: coeff:", __func__);
- debug_dump(buf, sizeof(buf), deb_info);
+ deb_info("%s: coeff: ", __func__);
+ debug_dump(coeff_table[i].val, sizeof(coeff_table[i].val), deb_info);
/* program */
- for (i = 0; i < sizeof(buf); i++) {
- ret = af9013_write_reg(state, 0xae00 + i, buf[i]);
+ for (j = 0; j < sizeof(coeff_table[i].val); j++) {
+ ret = af9013_write_reg(state, 0xae00 + j,
+ coeff_table[i].val[j]);
if (ret)
break;
}
+error:
return ret;
}
@@ -486,6 +341,19 @@ static int af9013_set_freq_ctrl(struct af9013_state *state, fe_bandwidth_t bw)
if_sample_freq = 4300000; /* 4.3 MHz */
break;
}
+ } else if (state->config.tuner == AF9013_TUNER_TDA18218) {
+ switch (bw) {
+ case BANDWIDTH_6_MHZ:
+ if_sample_freq = 3000000; /* 3 MHz */
+ break;
+ case BANDWIDTH_7_MHZ:
+ if_sample_freq = 3500000; /* 3.5 MHz */
+ break;
+ case BANDWIDTH_8_MHZ:
+ default:
+ if_sample_freq = 4000000; /* 4 MHz */
+ break;
+ }
}
while (if_sample_freq > (adc_freq / 2))
@@ -1097,45 +965,31 @@ static int af9013_update_signal_strength(struct dvb_frontend *fe)
{
struct af9013_state *state = fe->demodulator_priv;
int ret;
- u8 tmp0;
- u8 rf_gain, rf_50, rf_80, if_gain, if_50, if_80;
+ u8 rf_gain, if_gain;
int signal_strength;
deb_info("%s\n", __func__);
- state->signal_strength = 0;
-
- ret = af9013_read_reg_bits(state, 0x9bee, 0, 1, &tmp0);
- if (ret)
- goto error;
- if (tmp0) {
- ret = af9013_read_reg(state, 0x9bbd, &rf_50);
- if (ret)
- goto error;
- ret = af9013_read_reg(state, 0x9bd0, &rf_80);
- if (ret)
- goto error;
- ret = af9013_read_reg(state, 0x9be2, &if_50);
- if (ret)
- goto error;
- ret = af9013_read_reg(state, 0x9be4, &if_80);
- if (ret)
- goto error;
+ if (state->signal_strength_en) {
ret = af9013_read_reg(state, 0xd07c, &rf_gain);
if (ret)
goto error;
ret = af9013_read_reg(state, 0xd07d, &if_gain);
if (ret)
goto error;
- signal_strength = (0xffff / (9 * (rf_50 + if_50) - \
- 11 * (rf_80 + if_80))) * (10 * (rf_gain + if_gain) - \
- 11 * (rf_80 + if_80));
+ signal_strength = (0xffff / \
+ (9 * (state->rf_50 + state->if_50) - \
+ 11 * (state->rf_80 + state->if_80))) * \
+ (10 * (rf_gain + if_gain) - \
+ 11 * (state->rf_80 + state->if_80));
if (signal_strength < 0)
signal_strength = 0;
else if (signal_strength > 0xffff)
signal_strength = 0xffff;
state->signal_strength = signal_strength;
+ } else {
+ state->signal_strength = 0;
}
error:
@@ -1368,6 +1222,7 @@ static int af9013_init(struct dvb_frontend *fe)
break;
case AF9013_TUNER_MXL5005D:
case AF9013_TUNER_MXL5005R:
+ case AF9013_TUNER_MXL5007T:
len = ARRAY_SIZE(tuner_init_mxl5005);
init = tuner_init_mxl5005;
break;
@@ -1393,6 +1248,7 @@ static int af9013_init(struct dvb_frontend *fe)
init = tuner_init_mt2060_2;
break;
case AF9013_TUNER_TDA18271:
+ case AF9013_TUNER_TDA18218:
len = ARRAY_SIZE(tuner_init_tda18271);
init = tuner_init_tda18271;
break;
@@ -1438,6 +1294,27 @@ static int af9013_init(struct dvb_frontend *fe)
if (ret)
goto error;
+ /* read values needed for signal strength calculation */
+ ret = af9013_read_reg_bits(state, 0x9bee, 0, 1,
+ &state->signal_strength_en);
+ if (ret)
+ goto error;
+
+ if (state->signal_strength_en) {
+ ret = af9013_read_reg(state, 0x9bbd, &state->rf_50);
+ if (ret)
+ goto error;
+ ret = af9013_read_reg(state, 0x9bd0, &state->rf_80);
+ if (ret)
+ goto error;
+ ret = af9013_read_reg(state, 0x9be2, &state->if_50);
+ if (ret)
+ goto error;
+ ret = af9013_read_reg(state, 0x9be4, &state->if_80);
+ if (ret)
+ goto error;
+ }
+
error:
return ret;
}
generated by cgit v1.2.3 (git 2.0.4) at 2024-11-10 11:33:58 +0000