[media] ds3000: remove unnecessary dnxt, dcur structures

All necessary parameters already stored in frontend cache.

Signed-off-by: Igor M. Liplianin <liplianin@me.by>
Signed-off-by: Mauro Carvalho Chehab <mchehab@redhat.com>

diff --git a/drivers/media/dvb/frontends/ds3000.c b/drivers/media/dvb/frontends/ds3000.c
index 882be67..13f9193 100644 (file)
--- a/drivers/media/dvb/frontends/ds3000.c
+++ b/drivers/media/dvb/frontends/ds3000.c
@@ -229,31 +229,11 @@ static u8 ds3000_dvbs2_init_tab[] = {
        0xb8, 0x00,
 };
 
-/* DS3000 doesn't need some parameters as input and auto-detects them */
-/* save input from the application of those parameters */
-struct ds3000_tuning {
-       u32 frequency;
-       u32 symbol_rate;
-       fe_spectral_inversion_t inversion;
-       enum fe_code_rate fec;
-
-       /* input values */
-       u8 inversion_val;
-       fe_modulation_t delivery;
-       u8 rolloff;
-};
-
 struct ds3000_state {
        struct i2c_adapter *i2c;
        const struct ds3000_config *config;
-
        struct dvb_frontend frontend;
-
-       struct ds3000_tuning dcur;
-       struct ds3000_tuning dnxt;
-
        u8 skip_fw_load;
-
        /* previous uncorrected block counter for DVB-S2 */
        u16 prevUCBS2;
 };
@@ -401,45 +381,6 @@ static int ds3000_tuner_readreg(struct ds3000_state *state, u8 reg)
        return b1[0];
 }
 
-static int ds3000_set_inversion(struct ds3000_state *state,
-                                       fe_spectral_inversion_t inversion)
-{
-       dprintk("%s(%d)\n", __func__, inversion);
-
-       switch (inversion) {
-       case INVERSION_OFF:
-       case INVERSION_ON:
-       case INVERSION_AUTO:
-               break;
-       default:
-               return -EINVAL;
-       }
-
-       state->dnxt.inversion = inversion;
-
-       return 0;
-}
-
-static int ds3000_set_symbolrate(struct ds3000_state *state, u32 rate)
-{
-       int ret = 0;
-
-       dprintk("%s()\n", __func__);
-
-       dprintk("%s() symbol_rate = %d\n", __func__, state->dnxt.symbol_rate);
-
-       /*  check if symbol rate is within limits */
-       if ((state->dnxt.symbol_rate >
-                               state->frontend.ops.info.symbol_rate_max) ||
-           (state->dnxt.symbol_rate <
-                               state->frontend.ops.info.symbol_rate_min))
-               ret = -EOPNOTSUPP;
-
-       state->dnxt.symbol_rate = rate;
-
-       return ret;
-}
-
 static int ds3000_load_firmware(struct dvb_frontend *fe,
                                        const struct firmware *fw);
 
@@ -790,13 +731,6 @@ static int ds3000_read_ucblocks(struct dvb_frontend *fe, u32 *ucblocks)
        return 0;
 }
 
-/* Overwrite the current tuning params, we are about to tune */
-static void ds3000_clone_params(struct dvb_frontend *fe)
-{
-       struct ds3000_state *state = fe->demodulator_priv;
-       memcpy(&state->dcur, &state->dnxt, sizeof(state->dcur));
-}
-
 static int ds3000_set_tone(struct dvb_frontend *fe, fe_sec_tone_mode_t tone)
 {
        struct ds3000_state *state = fe->demodulator_priv;
@@ -1027,22 +961,6 @@ static int ds3000_tune(struct dvb_frontend *fe,
 
        dprintk("%s() ", __func__);
 
-       state->dnxt.delivery = c->modulation;
-       state->dnxt.frequency = c->frequency;
-       state->dnxt.rolloff = 2; /* fixme */
-       state->dnxt.fec = c->fec_inner;
-
-       ret = ds3000_set_inversion(state, p->inversion);
-       if (ret !=  0)
-               return ret;
-
-       ret = ds3000_set_symbolrate(state, c->symbol_rate);
-       if (ret !=  0)
-               return ret;
-
-       /* discard the 'current' tuning parameters and prepare to tune */
-       ds3000_clone_params(fe);
-
        /* Reset status register */
        status = 0;
        /* Tune */
@@ -1053,14 +971,14 @@ static int ds3000_tune(struct dvb_frontend *fe,
        ds3000_tuner_writereg(state, 0x08, 0x01);
        ds3000_tuner_writereg(state, 0x00, 0x01);
        /* calculate and set freq divider */
-       if (state->dcur.frequency < 1146000) {
+       if (p->frequency < 1146000) {
                ds3000_tuner_writereg(state, 0x10, 0x11);
-               ndiv = ((state->dcur.frequency * (6 + 8) * 4) +
+               ndiv = ((p->frequency * (6 + 8) * 4) +
                                (DS3000_XTAL_FREQ / 2)) /
                                DS3000_XTAL_FREQ - 1024;
        } else {
                ds3000_tuner_writereg(state, 0x10, 0x01);
-               ndiv = ((state->dcur.frequency * (6 + 8) * 2) +
+               ndiv = ((p->frequency * (6 + 8) * 2) +
                                (DS3000_XTAL_FREQ / 2)) /
                                DS3000_XTAL_FREQ - 1024;
        }
@@ -1106,8 +1024,8 @@ static int ds3000_tune(struct dvb_frontend *fe,
        ds3000_tuner_writereg(state, 0x50, 0x00);
        msleep(5);
 
-       f3db = ((state->dcur.symbol_rate / 1000) << 2) / 5 + 2000;
-       if ((state->dcur.symbol_rate / 1000) < 5000)
+       f3db = ((c->symbol_rate / 1000) << 2) / 5 + 2000;
+       if ((c->symbol_rate / 1000) < 5000)
                f3db += 3000;
        if (f3db < 7000)
                f3db = 7000;
@@ -1196,30 +1114,30 @@ static int ds3000_tune(struct dvb_frontend *fe,
        ds3000_writereg(state, 0x25, 0x8a);
 
        /* enhance symbol rate performance */
-       if ((state->dcur.symbol_rate / 1000) <= 5000) {
-               value = 29777 / (state->dcur.symbol_rate / 1000) + 1;
+       if ((c->symbol_rate / 1000) <= 5000) {
+               value = 29777 / (c->symbol_rate / 1000) + 1;
                if (value % 2 != 0)
                        value++;
                ds3000_writereg(state, 0xc3, 0x0d);
                ds3000_writereg(state, 0xc8, value);
                ds3000_writereg(state, 0xc4, 0x10);
                ds3000_writereg(state, 0xc7, 0x0e);
-       } else if ((state->dcur.symbol_rate / 1000) <= 10000) {
-               value = 92166 / (state->dcur.symbol_rate / 1000) + 1;
+       } else if ((c->symbol_rate / 1000) <= 10000) {
+               value = 92166 / (c->symbol_rate / 1000) + 1;
                if (value % 2 != 0)
                        value++;
                ds3000_writereg(state, 0xc3, 0x07);
                ds3000_writereg(state, 0xc8, value);
                ds3000_writereg(state, 0xc4, 0x09);
                ds3000_writereg(state, 0xc7, 0x12);
-       } else if ((state->dcur.symbol_rate / 1000) <= 20000) {
-               value = 64516 / (state->dcur.symbol_rate / 1000) + 1;
+       } else if ((c->symbol_rate / 1000) <= 20000) {
+               value = 64516 / (c->symbol_rate / 1000) + 1;
                ds3000_writereg(state, 0xc3, value);
                ds3000_writereg(state, 0xc8, 0x0e);
                ds3000_writereg(state, 0xc4, 0x07);
                ds3000_writereg(state, 0xc7, 0x18);
        } else {
-               value = 129032 / (state->dcur.symbol_rate / 1000) + 1;
+               value = 129032 / (c->symbol_rate / 1000) + 1;
                ds3000_writereg(state, 0xc3, value);
                ds3000_writereg(state, 0xc8, 0x0a);
                ds3000_writereg(state, 0xc4, 0x05);
@@ -1227,7 +1145,7 @@ static int ds3000_tune(struct dvb_frontend *fe,
        }
 
        /* normalized symbol rate rounded to the closest integer */
-       value = (((state->dcur.symbol_rate / 1000) << 16) +
+       value = (((c->symbol_rate / 1000) << 16) +
                        (DS3000_SAMPLE_RATE / 2)) / DS3000_SAMPLE_RATE;
        ds3000_writereg(state, 0x61, value & 0x00ff);
        ds3000_writereg(state, 0x62, (value & 0xff00) >> 8);