[media] radio-aztech: Implement signal strength detection and fix stereo detection
Current stereo detection code is wrong - it reads TUNED bit instead of STEREO bit. Fix that and implement signal strength detection too. Also remove useless s_stereo functionn. Signed-off-by: Ondrej Zary <linux@rainbow-software.org> Signed-off-by: Hans Verkuil <hans.verkuil@cisco.com> Signed-off-by: Mauro Carvalho Chehab <m.chehab@samsung.com>
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@ -94,21 +94,16 @@ static int aztech_s_frequency(struct radio_isa_card *isa, u32 freq)
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return 0;
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}
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/* thanks to Michael Dwyer for giving me a dose of clues in
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* the signal strength department..
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*
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* This card has a stereo bit - bit 0 set = mono, not set = stereo
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*/
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static u32 aztech_g_rxsubchans(struct radio_isa_card *isa)
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{
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if (inb(isa->io) & 1)
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if (inb(isa->io) & AZTECH_BIT_MONO)
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return V4L2_TUNER_SUB_MONO;
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return V4L2_TUNER_SUB_STEREO;
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}
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static int aztech_s_stereo(struct radio_isa_card *isa, bool stereo)
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static u32 aztech_g_signal(struct radio_isa_card *isa)
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{
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return aztech_s_frequency(isa, isa->freq);
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return (inb(isa->io) & AZTECH_BIT_NOT_TUNED) ? 0 : 0xffff;
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}
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static int aztech_s_mute_volume(struct radio_isa_card *isa, bool mute, int vol)
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@ -126,8 +121,8 @@ static const struct radio_isa_ops aztech_ops = {
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.alloc = aztech_alloc,
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.s_mute_volume = aztech_s_mute_volume,
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.s_frequency = aztech_s_frequency,
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.s_stereo = aztech_s_stereo,
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.g_rxsubchans = aztech_g_rxsubchans,
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.g_signal = aztech_g_signal,
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};
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static const int aztech_ioports[] = { 0x350, 0x358 };
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