Commit b4797048 authored by Patrick Boettcher's avatar Patrick Boettcher Committed by Mauro Carvalho Chehab
Browse files

[media] stv090x: added function to control GPIOs from the outside 



This patch STV090X adds and exports a function to control the GPIOs of
the stv090x-devices.

Cc: Manu Abraham <abraham.manu@gmail.com>
Signed-off-by: default avatarMartin Wilks <m.wilks@technisat.com>
Signed-off-by: default avatarPatrick Boettcher <pboettcher@kernellabs.com>
Signed-off-by: default avatarMauro Carvalho Chehab <mchehab@redhat.com>
parent 521cb40b

drivers/media/dvb/frontends/stv090x.c

+14 −0
Original line number Diff line number Diff line
@@ -4516,6 +4516,20 @@ err: 
	return -1;

}



int stv090x_set_gpio(struct dvb_frontend *fe, u8 gpio, u8 dir, u8 value,

		u8 xor_value)

{

	struct stv090x_state *state = fe->demodulator_priv;

	u8 reg = 0;



	STV090x_SETFIELD(reg, GPIOx_OPD_FIELD, dir);

	STV090x_SETFIELD(reg, GPIOx_CONFIG_FIELD, value);

	STV090x_SETFIELD(reg, GPIOx_XOR_FIELD, xor_value);



	return stv090x_write_reg(state, STV090x_GPIOxCFG(gpio), reg);

}

EXPORT_SYMBOL(stv090x_set_gpio);



static struct dvb_frontend_ops stv090x_ops = {



	.info = {

drivers/media/dvb/frontends/stv090x.h

+12 −0
Original line number Diff line number Diff line
@@ -104,6 +104,11 @@ struct stv090x_config { 
extern struct dvb_frontend *stv090x_attach(const struct stv090x_config *config,

					   struct i2c_adapter *i2c,

					   enum stv090x_demodulator demod);



/* dir = 0 -> output, dir = 1 -> input/open-drain */

extern int stv090x_set_gpio(struct dvb_frontend *fe, u8 gpio,

		u8 dir, u8 value, u8 xor_value);



#else



static inline struct dvb_frontend *stv090x_attach(const struct stv090x_config *config,
@@ -113,6 +118,13 @@ static inline struct dvb_frontend *stv090x_attach(const struct stv090x_config *c 
	printk(KERN_WARNING "%s: driver disabled by Kconfig\n", __func__);

	return NULL;

}



static inline int stv090x_set_gpio(struct dvb_frontend *fe, u8 gpio,

		u8 opd, u8 value, u8 xor_value)

{

	printk(KERN_WARNING "%s: driver disabled by Kconfig\n", __func__);

	return -ENODEV;

}

#endif /* CONFIG_DVB_STV090x */



#endif /* __STV090x_H */

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