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author | Patrick Boettcher <pb@linuxtv.org> | 2006-05-14 05:01:31 -0300 |
---|---|---|
committer | Mauro Carvalho Chehab <mchehab@infradead.org> | 2006-06-25 02:00:42 -0300 |
commit | dea74869f3c62b0b7addd67017b22b394e942aac (patch) | |
tree | d1a597caea6615c76f34896cc832fd1371f2e776 /drivers/media/dvb/frontends/dvb-pll.c | |
parent | 332bed5fc25ab0eb84215ecd89a4acd48219eee0 (diff) | |
download | lwn-dea74869f3c62b0b7addd67017b22b394e942aac.tar.gz lwn-dea74869f3c62b0b7addd67017b22b394e942aac.zip |
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/dvb-pll.c')
-rw-r--r-- | drivers/media/dvb/frontends/dvb-pll.c | 20 |
1 files changed, 10 insertions, 10 deletions
diff --git a/drivers/media/dvb/frontends/dvb-pll.c b/drivers/media/dvb/frontends/dvb-pll.c index a1a4be41e03e..a189683454b7 100644 --- a/drivers/media/dvb/frontends/dvb-pll.c +++ b/drivers/media/dvb/frontends/dvb-pll.c @@ -505,8 +505,8 @@ static int dvb_pll_sleep(struct dvb_frontend *fe) buf[2] = priv->pll_desc->entries[i].config; buf[3] = priv->pll_desc->entries[i].cb; - if (fe->ops->i2c_gate_ctrl) - fe->ops->i2c_gate_ctrl(fe, 1); + if (fe->ops.i2c_gate_ctrl) + fe->ops.i2c_gate_ctrl(fe, 1); if ((result = i2c_transfer(priv->i2c, &msg, 1)) != 1) { return result; } @@ -529,15 +529,15 @@ static int dvb_pll_set_params(struct dvb_frontend *fe, struct dvb_frontend_param return -EINVAL; // DVBT bandwidth only just now - if (fe->ops->info.type == FE_OFDM) { + if (fe->ops.info.type == FE_OFDM) { bandwidth = params->u.ofdm.bandwidth; } if ((result = dvb_pll_configure(priv->pll_desc, buf, params->frequency, bandwidth)) != 0) return result; - if (fe->ops->i2c_gate_ctrl) - fe->ops->i2c_gate_ctrl(fe, 1); + if (fe->ops.i2c_gate_ctrl) + fe->ops.i2c_gate_ctrl(fe, 1); if ((result = i2c_transfer(priv->i2c, &msg, 1)) != 1) { return result; } @@ -567,7 +567,7 @@ static int dvb_pll_calc_regs(struct dvb_frontend *fe, struct dvb_frontend_parame return -EINVAL; // DVBT bandwidth only just now - if (fe->ops->info.type == FE_OFDM) { + if (fe->ops.info.type == FE_OFDM) { bandwidth = params->u.ofdm.bandwidth; } @@ -623,10 +623,10 @@ int dvb_pll_attach(struct dvb_frontend *fe, int pll_addr, struct i2c_adapter *i2 priv->i2c = i2c; priv->pll_desc = desc; - memcpy(&fe->ops->tuner_ops, &dvb_pll_tuner_ops, sizeof(struct dvb_tuner_ops)); - strncpy(fe->ops->tuner_ops.info.name, desc->name, 128); - fe->ops->tuner_ops.info.frequency_min = desc->min; - fe->ops->tuner_ops.info.frequency_min = desc->max; + memcpy(&fe->ops.tuner_ops, &dvb_pll_tuner_ops, sizeof(struct dvb_tuner_ops)); + strncpy(fe->ops.tuner_ops.info.name, desc->name, 128); + fe->ops.tuner_ops.info.frequency_min = desc->min; + fe->ops.tuner_ops.info.frequency_min = desc->max; fe->tuner_priv = priv; return 0; |