diff options
Diffstat (limited to 'drivers/media/dvb/frontends/stv0297.c')
| -rw-r--r-- | drivers/media/dvb/frontends/stv0297.c | 73 |
1 files changed, 43 insertions, 30 deletions
diff --git a/drivers/media/dvb/frontends/stv0297.c b/drivers/media/dvb/frontends/stv0297.c index eb15676d374..1ca64249010 100644 --- a/drivers/media/dvb/frontends/stv0297.c +++ b/drivers/media/dvb/frontends/stv0297.c @@ -32,7 +32,6 @@ struct stv0297_state { struct i2c_adapter *i2c; - struct dvb_frontend_ops ops; const struct stv0297_config *config; struct dvb_frontend frontend; @@ -68,19 +67,25 @@ static int stv0297_readreg(struct stv0297_state *state, u8 reg) int ret; u8 b0[] = { reg }; u8 b1[] = { 0 }; - struct i2c_msg msg[] = { {.addr = state->config->demod_address,.flags = 0,.buf = b0,.len = - 1}, - {.addr = state->config->demod_address,.flags = I2C_M_RD,.buf = b1,.len = 1} - }; + struct i2c_msg msg[] = { {.addr = state->config->demod_address,.flags = 0,.buf = b0,.len = 1}, + {.addr = state->config->demod_address,.flags = I2C_M_RD,.buf = b1,.len = 1} + }; // this device needs a STOP between the register and data - if ((ret = i2c_transfer(state->i2c, &msg[0], 1)) != 1) { - dprintk("%s: readreg error (reg == 0x%02x, ret == %i)\n", __FUNCTION__, reg, ret); - return -1; - } - if ((ret = i2c_transfer(state->i2c, &msg[1], 1)) != 1) { - dprintk("%s: readreg error (reg == 0x%02x, ret == %i)\n", __FUNCTION__, reg, ret); - return -1; + if (state->config->stop_during_read) { + if ((ret = i2c_transfer(state->i2c, &msg[0], 1)) != 1) { + dprintk("%s: readreg error (reg == 0x%02x, ret == %i)\n", __FUNCTION__, reg, ret); + return -1; + } + if ((ret = i2c_transfer(state->i2c, &msg[1], 1)) != 1) { + dprintk("%s: readreg error (reg == 0x%02x, ret == %i)\n", __FUNCTION__, reg, ret); + return -1; + } + } else { + if ((ret = i2c_transfer(state->i2c, msg, 2)) != 2) { + dprintk("%s: readreg error (reg == 0x%02x, ret == %i)\n", __FUNCTION__, reg, ret); + return -1; + } } return b1[0]; @@ -107,13 +112,20 @@ static int stv0297_readregs(struct stv0297_state *state, u8 reg1, u8 * b, u8 len }; // this device needs a STOP between the register and data - if ((ret = i2c_transfer(state->i2c, &msg[0], 1)) != 1) { - dprintk("%s: readreg error (reg == 0x%02x, ret == %i)\n", __FUNCTION__, reg1, ret); - return -1; - } - if ((ret = i2c_transfer(state->i2c, &msg[1], 1)) != 1) { - dprintk("%s: readreg error (reg == 0x%02x, ret == %i)\n", __FUNCTION__, reg1, ret); - return -1; + if (state->config->stop_during_read) { + if ((ret = i2c_transfer(state->i2c, &msg[0], 1)) != 1) { + dprintk("%s: readreg error (reg == 0x%02x, ret == %i)\n", __FUNCTION__, reg1, ret); + return -1; + } + if ((ret = i2c_transfer(state->i2c, &msg[1], 1)) != 1) { + dprintk("%s: readreg error (reg == 0x%02x, ret == %i)\n", __FUNCTION__, reg1, ret); + return -1; + } + } else { + if ((ret = i2c_transfer(state->i2c, msg, 2)) != 2) { + dprintk("%s: readreg error (reg == 0x%02x, ret == %i)\n", __FUNCTION__, reg1, ret); + return -1; + } } return 0; @@ -276,12 +288,14 @@ static int stv0297_set_inversion(struct stv0297_state *state, fe_spectral_invers return 0; } -int stv0297_enable_plli2c(struct dvb_frontend *fe) +static int stv0297_i2c_gate_ctrl(struct dvb_frontend *fe, int enable) { struct stv0297_state *state = fe->demodulator_priv; - stv0297_writereg(state, 0x87, 0x78); - stv0297_writereg(state, 0x86, 0xc8); + if (enable) { + stv0297_writereg(state, 0x87, 0x78); + stv0297_writereg(state, 0x86, 0xc8); + } return 0; } @@ -296,9 +310,6 @@ static int stv0297_init(struct dvb_frontend *fe) stv0297_writereg(state, state->config->inittab[i], state->config->inittab[i+1]); msleep(200); - if (state->config->pll_init) - state->config->pll_init(fe); - return 0; } @@ -389,7 +400,7 @@ static int stv0297_set_frontend(struct dvb_frontend *fe, struct dvb_frontend_par case QAM_32: case QAM_64: delay = 100; - sweeprate = 1500; + sweeprate = 1000; break; case QAM_128: @@ -421,7 +432,10 @@ static int stv0297_set_frontend(struct dvb_frontend *fe, struct dvb_frontend_par } stv0297_init(fe); - state->config->pll_set(fe, p); + if (fe->ops.tuner_ops.set_params) { + fe->ops.tuner_ops.set_params(fe, p); + if (fe->ops.i2c_gate_ctrl) fe->ops.i2c_gate_ctrl(fe, 0); + } /* clear software interrupts */ stv0297_writereg(state, 0x82, 0x0); @@ -634,7 +648,6 @@ struct dvb_frontend *stv0297_attach(const struct stv0297_config *config, /* setup the state */ state->config = config; state->i2c = i2c; - memcpy(&state->ops, &stv0297_ops, sizeof(struct dvb_frontend_ops)); state->base_freq = 0; /* check if the demod is there */ @@ -642,7 +655,7 @@ struct dvb_frontend *stv0297_attach(const struct stv0297_config *config, goto error; /* create dvb_frontend */ - state->frontend.ops = &state->ops; + memcpy(&state->frontend.ops, &stv0297_ops, sizeof(struct dvb_frontend_ops)); state->frontend.demodulator_priv = state; return &state->frontend; @@ -668,6 +681,7 @@ static struct dvb_frontend_ops stv0297_ops = { .init = stv0297_init, .sleep = stv0297_sleep, + .i2c_gate_ctrl = stv0297_i2c_gate_ctrl, .set_frontend = stv0297_set_frontend, .get_frontend = stv0297_get_frontend, @@ -684,4 +698,3 @@ MODULE_AUTHOR("Dennis Noermann and Andrew de Quincey"); MODULE_LICENSE("GPL"); EXPORT_SYMBOL(stv0297_attach); -EXPORT_SYMBOL(stv0297_enable_plli2c); |