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/zl10353.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/zl10353.c')
-rw-r--r-- | drivers/media/dvb/frontends/zl10353.c | 14 |
1 files changed, 6 insertions, 8 deletions
diff --git a/drivers/media/dvb/frontends/zl10353.c b/drivers/media/dvb/frontends/zl10353.c index ac39f5519621..2b95e8b6cd39 100644 --- a/drivers/media/dvb/frontends/zl10353.c +++ b/drivers/media/dvb/frontends/zl10353.c @@ -34,7 +34,6 @@ struct zl10353_state { struct i2c_adapter *i2c; struct dvb_frontend frontend; - struct dvb_frontend_ops ops; struct zl10353_config config; }; @@ -146,15 +145,15 @@ static int zl10353_set_parameters(struct dvb_frontend *fe, // if there is no attached secondary tuner, we call set_params to program // a potential tuner attached somewhere else if (state->config.no_tuner) { - 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); } } // if pllbuf is defined, retrieve the settings - if (fe->ops->tuner_ops.calc_regs) { - fe->ops->tuner_ops.calc_regs(fe, param, pllbuf+1, 5); + if (fe->ops.tuner_ops.calc_regs) { + fe->ops.tuner_ops.calc_regs(fe, param, pllbuf+1, 5); pllbuf[1] <<= 1; } else { // fake pllbuf settings @@ -278,14 +277,13 @@ struct dvb_frontend *zl10353_attach(const struct zl10353_config *config, /* setup the state */ state->i2c = i2c; memcpy(&state->config, config, sizeof(struct zl10353_config)); - memcpy(&state->ops, &zl10353_ops, sizeof(struct dvb_frontend_ops)); /* check if the demod is there */ if (zl10353_read_register(state, CHIP_ID) != ID_ZL10353) goto error; /* create dvb_frontend */ - state->frontend.ops = &state->ops; + memcpy(&state->frontend.ops, &zl10353_ops, sizeof(struct dvb_frontend_ops)); state->frontend.demodulator_priv = state; return &state->frontend; |