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authorAdrian Bunk <bunk@stusta.de>2006-02-27 00:07:49 -0300
committerMauro Carvalho Chehab <mchehab@infradead.org>2006-03-03 14:17:35 -0300
commit805e660ca32ef63b81203a556f29fef262b95cc0 (patch)
tree178c50989edb11f54ea6c1e4c7b82359375f0062 /drivers/media/dvb/frontends/mt312.c
parent2d748ba1669070a12bab11b19d20fd8daf537ef5 (diff)
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>
Diffstat (limited to 'drivers/media/dvb/frontends/mt312.c')
-rw-r--r--drivers/media/dvb/frontends/mt312.c116
1 files changed, 44 insertions, 72 deletions
diff --git a/drivers/media/dvb/frontends/mt312.c b/drivers/media/dvb/frontends/mt312.c
index ec4e641acc64..d3aea83cf218 100644
--- a/drivers/media/dvb/frontends/mt312.c
+++ b/drivers/media/dvb/frontends/mt312.c
@@ -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);