[media] snd_tea575x: Add support for tuning AM
Add support for tuning AM (on devices with the necessary additional
hardware components), and advertise the available bands using the new
VIDIOC_ENUM_FREQ_BANDS ioctl.
Signed-off-by: Hans de Goede <hdegoede@redhat.com>
CC: Ondrej Zary <linux@rainbow-software.org>
Signed-off-by: Mauro Carvalho Chehab <mchehab@redhat.com>
diff --git a/include/sound/tea575x-tuner.h b/include/sound/tea575x-tuner.h
index fe8590c..2a69535 100644
--- a/include/sound/tea575x-tuner.h
+++ b/include/sound/tea575x-tuner.h
@@ -28,6 +28,7 @@
#include <media/v4l2-device.h>
#define TEA575X_FMIF 10700
+#define TEA575X_AMIF 450
#define TEA575X_DATA (1 << 0)
#define TEA575X_CLK (1 << 1)
@@ -52,12 +53,14 @@
struct video_device vd; /* video device */
int radio_nr; /* radio_nr */
bool tea5759; /* 5759 chip is present */
+ bool has_am; /* Device can tune to AM freqs */
bool cannot_read_data; /* Device cannot read the data pin */
bool cannot_mute; /* Device cannot mute */
bool mute; /* Device is muted? */
bool stereo; /* receiving stereo */
bool tuned; /* tuned to a station */
unsigned int val; /* hw value */
+ u32 band; /* 0: FM, 1: FM-Japan, 2: AM */
u32 freq; /* frequency */
struct mutex mutex;
struct snd_tea575x_ops *ops;