ALSA: tea575x-tuner: various improvements

Improve tea575x-tuner with various good things from radio-maestro:
- extend frequency range to 50-150MHz
- fix querycap(): card name, CAP_RADIO
- improve g_tuner(): CAP_STEREO, stereo and tuned indication
- improve g_frequency(): tuner index checking and reading frequency from HW
- improve s_frequency(): tuner index and type checking

Signed-off-by: Ondrej Zary <linux@rainbow-software.org>
Signed-off-by: Takashi Iwai <tiwai@suse.de>

1 files changed, 4 insertions, 2 deletions

diff --git a/include/sound/tea575x-tuner.h b/include/sound/tea575x-tuner.h
index 5718a02d3afb..3d6cdd80df59 100644
--- a/include/sound/tea575x-tuner.h
+++ b/include/sound/tea575x-tuner.h
@@ -38,8 +38,10 @@ struct snd_tea575x {
         struct snd_card *card;
         struct video_device *vd;        /* video device */
         int dev_nr;                     /* requested device number + 1 */
-        int tea5759;                    /* 5759 chip is present */
-        int mute;                       /* Device is muted? */
+        bool tea5759;                   /* 5759 chip is present */
+        bool mute;                      /* Device is muted? */
+        bool stereo;                    /* receiving stereo */
+        bool tuned;                     /* tuned to a station */
         unsigned int freq_fixup;        /* crystal onboard */
         unsigned int val;               /* hw value */
         unsigned long freq;             /* frequency */