diff options
| author | Patrick Boettcher <pb@linuxtv.org> | 2006-05-14 12:01:31 +0400 |
|---|---|---|
| committer | Mauro Carvalho Chehab <mchehab@infradead.org> | 2006-06-25 09:00:42 +0400 |
| commit | dea74869f3c62b0b7addd67017b22b394e942aac (patch) | |
| tree | d1a597caea6615c76f34896cc832fd1371f2e776 /drivers/media/dvb/frontends/lgdt330x.c | |
| parent | 332bed5fc25ab0eb84215ecd89a4acd48219eee0 (diff) | |
| download | linux-dea74869f3c62b0b7addd67017b22b394e942aac.tar.xz | |
V4L/DVB (4028): Change dvb_frontend_ops to be a real field instead of a pointer field inside dvb_frontend
The dvb_frontend_ops is a pointer inside dvb_frontend. That's why every demod-driver
is having a field of dvb_frontend_ops in its private-state-struct and
using the reference for filling the pointer-field in dvb_frontend.
- It saves at least two lines of code per demod-driver,
- reduces object size (one less dereference per frontend_ops-access),
- be coherent with dvb_tuner_ops,
- makes it a little bit easier for newbies to understand how it works and
- avoids stupid mistakes because you would have to copy the dvb_frontend_ops
always, before you could assign the static pointer directly, which was
dangerous.
Signed-off-by: Patrick Boettcher <pb@linuxtv.org>
Signed-off-by: Mauro Carvalho Chehab <mchehab@infradead.org>
Diffstat (limited to 'drivers/media/dvb/frontends/lgdt330x.c')
| -rw-r--r-- | drivers/media/dvb/frontends/lgdt330x.c | 17 |
1 files changed, 8 insertions, 9 deletions
diff --git a/drivers/media/dvb/frontends/lgdt330x.c b/drivers/media/dvb/frontends/lgdt330x.c index 5deb6445aca5..53bafc7c9f9b 100644 --- a/drivers/media/dvb/frontends/lgdt330x.c +++ b/drivers/media/dvb/frontends/lgdt330x.c @@ -60,7 +60,6 @@ if (debug) printk(KERN_DEBUG "lgdt330x: " args); \ struct lgdt330x_state { struct i2c_adapter* i2c; - struct dvb_frontend_ops ops; /* Configuration settings */ const struct lgdt330x_config* config; @@ -400,9 +399,9 @@ static int lgdt330x_set_parameters(struct dvb_frontend* fe, } /* Tune to the specified frequency */ - if (fe->ops->tuner_ops.set_params) { - fe->ops->tuner_ops.set_params(fe, param); - if (fe->ops->i2c_gate_ctrl) fe->ops->i2c_gate_ctrl(fe, 0); + if (fe->ops.tuner_ops.set_params) { + fe->ops.tuner_ops.set_params(fe, param); + if (fe->ops.i2c_gate_ctrl) fe->ops.i2c_gate_ctrl(fe, 0); } /* Keep track of the new frequency */ @@ -724,16 +723,19 @@ struct dvb_frontend* lgdt330x_attach(const struct lgdt330x_config* config, /* Setup the state */ state->config = config; state->i2c = i2c; + + /* Create dvb_frontend */ switch (config->demod_chip) { case LGDT3302: - memcpy(&state->ops, &lgdt3302_ops, sizeof(struct dvb_frontend_ops)); + memcpy(&state->frontend.ops, &lgdt3302_ops, sizeof(struct dvb_frontend_ops)); break; case LGDT3303: - memcpy(&state->ops, &lgdt3303_ops, sizeof(struct dvb_frontend_ops)); + memcpy(&state->frontend.ops, &lgdt3303_ops, sizeof(struct dvb_frontend_ops)); break; default: goto error; } + state->frontend.demodulator_priv = state; /* Verify communication with demod chip */ if (i2c_read_demod_bytes(state, 2, buf, 1)) @@ -742,9 +744,6 @@ struct dvb_frontend* lgdt330x_attach(const struct lgdt330x_config* config, state->current_frequency = -1; state->current_modulation = -1; - /* Create dvb_frontend */ - state->frontend.ops = &state->ops; - state->frontend.demodulator_priv = state; return &state->frontend; error: |