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Commit 72357c78 authored by Wang Xingchao's avatar Wang Xingchao Committed by Takashi Iwai
Browse files

ALSA: HDMI - Fix channel_allocation array wrong order 



The array channel_allocations[] is an ordered list, add function to get
correct order by ca_index.

Signed-off-by: default avatarWang Xingchao <xingchao.wang@intel.com>
Signed-off-by: default avatarTakashi Iwai <tiwai@suse.de>
parent 14e42917

sound/pci/hda/patch_hdmi.c

+14 −1
Original line number Diff line number Diff line
@@ -469,6 +469,17 @@ static void init_channel_allocations(void) 
	}

}



static int get_channel_allocation_order(int ca)

{

	int i;



	for (i = 0; i < ARRAY_SIZE(channel_allocations); i++) {

		if (channel_allocations[i].ca_index == ca)

			break;

	}

	return i;

}



/*

 * The transformation takes two steps:

 *
@@ -541,9 +552,11 @@ static void hdmi_setup_channel_mapping(struct hda_codec *codec, 
{

	int i;

	int err;

	int order;



	order = get_channel_allocation_order(ca);

	if (hdmi_channel_mapping[ca][1] == 0) {

		for (i = 0; i < channel_allocations[ca].channels; i++)

		for (i = 0; i < channel_allocations[order].channels; i++)

			hdmi_channel_mapping[ca][i] = i | (i << 4);

		for (; i < 8; i++)

			hdmi_channel_mapping[ca][i] = 0xf | (i << 4);