Commit abb0362f authored by Trent Piepho's avatar Trent Piepho Committed by Mauro Carvalho Chehab
Browse files

V4L/DVB (10560): bttv: make tuner card info more consistent 



The bttv card database structure had a "tuner" field that was the input
number of the tuner input or UNSET for no tuner.  However, the only values
it could ever be are 0 and UNSET.  Having a tuner on an input other than 0
didn't work and was never used.

There is also a "tuner_type" field that can be set to TUNER_ABSENT to
indicate no tuner, which makes "tuner = UNSET" redundant.  In many cases,
tuner_type was set to UNSET when there was no tuner, which isn't quite
correct.  tuner_type == UNSET is supposed to mean the tuner type isn't yet
known.

So, I changed cards where "tuner == UNSET" to always have tuner_type of
TUNER_ABSENT.  At this point the tuner field is redundant, so I deleted it.

I have the card setup code set the card's tuner_type (not the card type's
tuner_type!) to TUNER_ABSENT if it hasn't yet been set at the end of the
setup code.  Various places that check if the card has a tuner will now
look for this instead of checking the card type's "tuner" field.

Also autoload the tuner module before issuing the TUNER_SET_TYPE_ADDR I2C
client call instead of after issuing it.

Overall, on ia32 this decreases compiled code size by about 24 bytes and
reduces the data size by 640 bytes.

Signed-off-by: default avatarTrent Piepho <xyzzy@speakeasy.org>
Signed-off-by: default avatarMauro Carvalho Chehab <mchehab@redhat.com>
parent 72134a6d

drivers/media/video/bt8xx/bttv-cards.c

+68 −217

File changed.

Preview size limit exceeded, changes collapsed.

drivers/media/video/bt8xx/bttv-driver.c

+7 −8
Original line number Diff line number Diff line
@@ -1356,8 +1356,8 @@ set_input(struct bttv *btv, unsigned int input, unsigned int norm) 
	} else {

		video_mux(btv,input);

	}

	audio_input(btv,(input == bttv_tvcards[btv->c.type].tuner ?

		       TVAUDIO_INPUT_TUNER : TVAUDIO_INPUT_EXTERN));

	audio_input(btv, (btv->tuner_type != TUNER_ABSENT && input == 0) ?

			 TVAUDIO_INPUT_TUNER : TVAUDIO_INPUT_EXTERN);

	set_tvnorm(btv, norm);

}
@@ -1907,7 +1907,7 @@ static int bttv_enum_input(struct file *file, void *priv, 
	i->type     = V4L2_INPUT_TYPE_CAMERA;

	i->audioset = 1;



	if (i->index == bttv_tvcards[btv->c.type].tuner) {

	if (btv->tuner_type != TUNER_ABSENT && i->index == 0) {

		sprintf(i->name, "Television");

		i->type  = V4L2_INPUT_TYPE_TUNER;

		i->tuner = 0;
@@ -1971,7 +1971,7 @@ static int bttv_s_tuner(struct file *file, void *priv, 
	if (0 != err)

		return err;



	if (UNSET == bttv_tvcards[btv->c.type].tuner)

	if (btv->tuner_type == TUNER_ABSENT)

		return -EINVAL;



	if (0 != t->index)
@@ -2665,8 +2665,7 @@ static int bttv_querycap(struct file *file, void *priv, 
	if (no_overlay <= 0)

		cap->capabilities |= V4L2_CAP_VIDEO_OVERLAY;



	if (bttv_tvcards[btv->c.type].tuner != UNSET &&

	    bttv_tvcards[btv->c.type].tuner != TUNER_ABSENT)

	if (btv->tuner_type != TUNER_ABSENT)

		cap->capabilities |= V4L2_CAP_TUNER;

	return 0;

}
@@ -2949,7 +2948,7 @@ static int bttv_g_tuner(struct file *file, void *priv, 
	struct bttv_fh *fh = priv;

	struct bttv *btv = fh->btv;



	if (UNSET == bttv_tvcards[btv->c.type].tuner)

	if (btv->tuner_type == TUNER_ABSENT)

		return -EINVAL;

	if (0 != t->index)

		return -EINVAL;
@@ -3509,7 +3508,7 @@ static int radio_g_tuner(struct file *file, void *priv, struct v4l2_tuner *t) 
	struct bttv_fh *fh = priv;

	struct bttv *btv = fh->btv;



	if (UNSET == bttv_tvcards[btv->c.type].tuner)

	if (btv->tuner_type == TUNER_ABSENT)

		return -EINVAL;

	if (0 != t->index)

		return -EINVAL;

drivers/media/video/bt8xx/bttv-i2c.c

+2 −4
Original line number Diff line number Diff line
@@ -286,12 +286,10 @@ static int attach_inform(struct i2c_client *client) 
		btv->i2c_msp34xx_client = client;

	if (client->driver->id == I2C_DRIVERID_TVAUDIO)

		btv->i2c_tvaudio_client = client;

	if (btv->tuner_type != UNSET) {

	if (btv->tuner_type != TUNER_ABSENT) {

		struct tuner_setup tun_setup;



		if ((addr==ADDR_UNSET) ||

				(addr==client->addr)) {



		if (addr == ADDR_UNSET || addr == client->addr) {

			tun_setup.mode_mask = T_ANALOG_TV | T_DIGITAL_TV | T_RADIO;

			tun_setup.type = btv->tuner_type;

			tun_setup.addr = addr;

drivers/media/video/bt8xx/bttv.h

+0 −1
Original line number Diff line number Diff line
@@ -216,7 +216,6 @@ struct tvcard 
	char *name;

	unsigned int video_inputs;

	unsigned int audio_inputs;

	unsigned int tuner;

	unsigned int svhs;

	unsigned int digital_mode; // DIGITAL_MODE_CAMERA or DIGITAL_MODE_VIDEO

	u32 gpiomask;

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