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V4L/DVB (3337): Drivers/media/dvb/frontends/mt312.c: cleanups 

This patch contains the following possible cleanups:
- update the Kconfig help to mention the VP310
- merge vp310_attach and mt312_attach into a new vp310_mt312_attach
  to remove some code duplication

Signed-off-by: Adrian Bunk <bunk@stusta.de>
Signed-off-by: Michael Krufky <mkrufky@linuxtv.org>
Signed-off-by: Mauro Carvalho Chehab <mchehab@infradead.org>
This commit is contained in:
Adrian Bunk 2006-02-27 00:07:49 -03:00 committed by Mauro Carvalho Chehab
parent dccd7c703a
commit 4592b3a084
4 changed files with 48 additions and 78 deletions
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2
drivers/media/dvb/b2c2/flexcop-fe-tuner.c
View File

@ -526,7 +526,7 @@ int flexcop_frontend_init(struct flexcop_device *fc)
info("found the stv0297 at i2c address: 0x%02x",alps_tdee4_stv0297_config.demod_address);
} else
/* try the sky v2.3 (vp310/Samsung tbdu18132(tsa5059)) */
if ((fc->fe = vp310_attach(&skystar23_samsung_tbdu18132_config, &fc->i2c_adap)) != NULL) {
if ((fc->fe = vp310_mt312_attach(&skystar23_samsung_tbdu18132_config, &fc->i2c_adap)) != NULL) {
ops = fc->fe->ops;
ops->diseqc_send_master_cmd = flexcop_diseqc_send_master_cmd;

2
drivers/media/dvb/frontends/Kconfig
View File

@ -29,7 +29,7 @@ config DVB_TDA8083
A DVB-S tuner module. Say Y when you want to support this frontend.
config DVB_MT312
tristate "Zarlink MT312 based"
tristate "Zarlink VP310/MT312 based"
depends on DVB_CORE
help
A DVB-S tuner module. Say Y when you want to support this frontend.

116
drivers/media/dvb/frontends/mt312.c
View File

@ -612,76 +612,6 @@ static void mt312_release(struct dvb_frontend* fe)
kfree(state);
}
static struct dvb_frontend_ops vp310_mt312_ops;
struct dvb_frontend* vp310_attach(const struct mt312_config* config,
struct i2c_adapter* i2c)
{
struct mt312_state* state = NULL;
/* allocate memory for the internal state */
state = kmalloc(sizeof(struct mt312_state), GFP_KERNEL);
if (state == NULL)
goto error;
/* setup the state */
state->config = config;
state->i2c = i2c;
memcpy(&state->ops, &vp310_mt312_ops, sizeof(struct dvb_frontend_ops));
strcpy(state->ops.info.name, "Zarlink VP310 DVB-S");
/* check if the demod is there */
if (mt312_readreg(state, ID, &state->id) < 0)
goto error;
if (state->id != ID_VP310) {
goto error;
}
/* create dvb_frontend */
state->frequency = 90;
state->frontend.ops = &state->ops;
state->frontend.demodulator_priv = state;
return &state->frontend;
error:
kfree(state);
return NULL;
}
struct dvb_frontend* mt312_attach(const struct mt312_config* config,
struct i2c_adapter* i2c)
{
struct mt312_state* state = NULL;
/* allocate memory for the internal state */
state = kmalloc(sizeof(struct mt312_state), GFP_KERNEL);
if (state == NULL)
goto error;
/* setup the state */
state->config = config;
state->i2c = i2c;
memcpy(&state->ops, &vp310_mt312_ops, sizeof(struct dvb_frontend_ops));
strcpy(state->ops.info.name, "Zarlink MT312 DVB-S");
/* check if the demod is there */
if (mt312_readreg(state, ID, &state->id) < 0)
goto error;
if (state->id != ID_MT312) {
goto error;
}
/* create dvb_frontend */
state->frequency = 60;
state->frontend.ops = &state->ops;
state->frontend.demodulator_priv = state;
return &state->frontend;
error:
kfree(state);
return NULL;
}
static struct dvb_frontend_ops vp310_mt312_ops = {
.info = {
@ -720,6 +650,49 @@ static struct dvb_frontend_ops vp310_mt312_ops = {
.set_voltage = mt312_set_voltage,
};
struct dvb_frontend* vp310_mt312_attach(const struct mt312_config* config,
struct i2c_adapter* i2c)
{
struct mt312_state* state = NULL;
/* allocate memory for the internal state */
state = kmalloc(sizeof(struct mt312_state), GFP_KERNEL);
if (state == NULL)
goto error;
/* setup the state */
state->config = config;
state->i2c = i2c;
memcpy(&state->ops, &vp310_mt312_ops, sizeof(struct dvb_frontend_ops));
/* check if the demod is there */
if (mt312_readreg(state, ID, &state->id) < 0)
goto error;
switch (state->id) {
case ID_VP310:
strcpy(state->ops.info.name, "Zarlink VP310 DVB-S");
state->frequency = 90;
break;
case ID_MT312:
strcpy(state->ops.info.name, "Zarlink MT312 DVB-S");
state->frequency = 60;
break;
default:
printk (KERN_WARNING "Only Zarlink VP310/MT312 are supported chips.\n");
goto error;
}
/* create dvb_frontend */
state->frontend.ops = &state->ops;
state->frontend.demodulator_priv = state;
return &state->frontend;
error:
kfree(state);
return NULL;
}
module_param(debug, int, 0644);
MODULE_PARM_DESC(debug, "Turn on/off frontend debugging (default:off).");
@ -727,5 +700,4 @@ MODULE_DESCRIPTION("Zarlink VP310/MT312 DVB-S Demodulator driver");
MODULE_AUTHOR("Andreas Oberritter <obi@linuxtv.org>");
MODULE_LICENSE("GPL");
EXPORT_SYMBOL(mt312_attach);
EXPORT_SYMBOL(vp310_attach);
EXPORT_SYMBOL(vp310_mt312_attach);

6
drivers/media/dvb/frontends/mt312.h
View File

@ -38,10 +38,8 @@ struct mt312_config
int (*pll_set)(struct dvb_frontend* fe, struct dvb_frontend_parameters* params);
};
extern struct dvb_frontend* mt312_attach(const struct mt312_config* config,
struct i2c_adapter* i2c);
struct dvb_frontend* vp310_mt312_attach(const struct mt312_config* config,
struct i2c_adapter* i2c);
extern struct dvb_frontend* vp310_attach(const struct mt312_config* config,
struct i2c_adapter* i2c);
#endif // MT312_H