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1060 lines
30 KiB
1060 lines
30 KiB
// SPDX-License-Identifier: GPL-2.0-only |
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/* |
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* ALSA SoC codec for HDMI encoder drivers |
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* Copyright (C) 2015 Texas Instruments Incorporated - https://www.ti.com/ |
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* Author: Jyri Sarha <[email protected]> |
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*/ |
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#include <linux/module.h> |
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#include <linux/string.h> |
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#include <sound/core.h> |
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#include <sound/jack.h> |
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#include <sound/pcm.h> |
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#include <sound/pcm_params.h> |
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#include <sound/soc.h> |
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#include <sound/tlv.h> |
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#include <sound/pcm_drm_eld.h> |
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#include <sound/hdmi-codec.h> |
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#include <sound/pcm_iec958.h> |
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#include <drm/drm_crtc.h> /* This is only to get MAX_ELD_BYTES */ |
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#define HDMI_CODEC_CHMAP_IDX_UNKNOWN -1 |
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struct hdmi_codec_channel_map_table { |
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unsigned char map; /* ALSA API channel map position */ |
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}; |
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/* |
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* CEA speaker placement for HDMI 1.4: |
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* |
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* FL FLC FC FRC FR FRW |
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* |
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* LFE |
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* |
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* RL RLC RC RRC RR |
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* |
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* Speaker placement has to be extended to support HDMI 2.0 |
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*/ |
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enum hdmi_codec_cea_spk_placement { |
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FL = BIT(0), /* Front Left */ |
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FC = BIT(1), /* Front Center */ |
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FR = BIT(2), /* Front Right */ |
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FLC = BIT(3), /* Front Left Center */ |
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FRC = BIT(4), /* Front Right Center */ |
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RL = BIT(5), /* Rear Left */ |
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RC = BIT(6), /* Rear Center */ |
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RR = BIT(7), /* Rear Right */ |
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RLC = BIT(8), /* Rear Left Center */ |
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RRC = BIT(9), /* Rear Right Center */ |
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LFE = BIT(10), /* Low Frequency Effect */ |
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}; |
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/* |
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* cea Speaker allocation structure |
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*/ |
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struct hdmi_codec_cea_spk_alloc { |
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const int ca_id; |
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unsigned int n_ch; |
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unsigned long mask; |
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}; |
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/* Channel maps stereo HDMI */ |
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static const struct snd_pcm_chmap_elem hdmi_codec_stereo_chmaps[] = { |
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{ .channels = 2, |
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.map = { SNDRV_CHMAP_FL, SNDRV_CHMAP_FR } }, |
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{ } |
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}; |
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/* Channel maps for multi-channel playbacks, up to 8 n_ch */ |
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static const struct snd_pcm_chmap_elem hdmi_codec_8ch_chmaps[] = { |
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{ .channels = 2, /* CA_ID 0x00 */ |
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.map = { SNDRV_CHMAP_FL, SNDRV_CHMAP_FR } }, |
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{ .channels = 4, /* CA_ID 0x01 */ |
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.map = { SNDRV_CHMAP_FL, SNDRV_CHMAP_FR, SNDRV_CHMAP_LFE, |
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SNDRV_CHMAP_NA } }, |
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{ .channels = 4, /* CA_ID 0x02 */ |
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.map = { SNDRV_CHMAP_FL, SNDRV_CHMAP_FR, SNDRV_CHMAP_NA, |
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SNDRV_CHMAP_FC } }, |
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{ .channels = 4, /* CA_ID 0x03 */ |
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.map = { SNDRV_CHMAP_FL, SNDRV_CHMAP_FR, SNDRV_CHMAP_LFE, |
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SNDRV_CHMAP_FC } }, |
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{ .channels = 6, /* CA_ID 0x04 */ |
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.map = { SNDRV_CHMAP_FL, SNDRV_CHMAP_FR, SNDRV_CHMAP_NA, |
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SNDRV_CHMAP_NA, SNDRV_CHMAP_RC, SNDRV_CHMAP_NA } }, |
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{ .channels = 6, /* CA_ID 0x05 */ |
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.map = { SNDRV_CHMAP_FL, SNDRV_CHMAP_FR, SNDRV_CHMAP_LFE, |
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SNDRV_CHMAP_NA, SNDRV_CHMAP_RC, SNDRV_CHMAP_NA } }, |
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{ .channels = 6, /* CA_ID 0x06 */ |
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.map = { SNDRV_CHMAP_FL, SNDRV_CHMAP_FR, SNDRV_CHMAP_NA, |
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SNDRV_CHMAP_FC, SNDRV_CHMAP_RC, SNDRV_CHMAP_NA } }, |
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{ .channels = 6, /* CA_ID 0x07 */ |
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.map = { SNDRV_CHMAP_FL, SNDRV_CHMAP_FR, SNDRV_CHMAP_LFE, |
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SNDRV_CHMAP_FC, SNDRV_CHMAP_RC, SNDRV_CHMAP_NA } }, |
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{ .channels = 6, /* CA_ID 0x08 */ |
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.map = { SNDRV_CHMAP_FL, SNDRV_CHMAP_FR, SNDRV_CHMAP_NA, |
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SNDRV_CHMAP_NA, SNDRV_CHMAP_RL, SNDRV_CHMAP_RR } }, |
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{ .channels = 6, /* CA_ID 0x09 */ |
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.map = { SNDRV_CHMAP_FL, SNDRV_CHMAP_FR, SNDRV_CHMAP_LFE, |
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SNDRV_CHMAP_NA, SNDRV_CHMAP_RL, SNDRV_CHMAP_RR } }, |
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{ .channels = 6, /* CA_ID 0x0A */ |
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.map = { SNDRV_CHMAP_FL, SNDRV_CHMAP_FR, SNDRV_CHMAP_NA, |
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SNDRV_CHMAP_FC, SNDRV_CHMAP_RL, SNDRV_CHMAP_RR } }, |
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{ .channels = 6, /* CA_ID 0x0B */ |
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.map = { SNDRV_CHMAP_FL, SNDRV_CHMAP_FR, SNDRV_CHMAP_LFE, |
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SNDRV_CHMAP_FC, SNDRV_CHMAP_RL, SNDRV_CHMAP_RR } }, |
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{ .channels = 8, /* CA_ID 0x0C */ |
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.map = { SNDRV_CHMAP_FL, SNDRV_CHMAP_FR, SNDRV_CHMAP_NA, |
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SNDRV_CHMAP_NA, SNDRV_CHMAP_RL, SNDRV_CHMAP_RR, |
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SNDRV_CHMAP_RC, SNDRV_CHMAP_NA } }, |
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{ .channels = 8, /* CA_ID 0x0D */ |
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.map = { SNDRV_CHMAP_FL, SNDRV_CHMAP_FR, SNDRV_CHMAP_LFE, |
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SNDRV_CHMAP_NA, SNDRV_CHMAP_RL, SNDRV_CHMAP_RR, |
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SNDRV_CHMAP_RC, SNDRV_CHMAP_NA } }, |
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{ .channels = 8, /* CA_ID 0x0E */ |
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.map = { SNDRV_CHMAP_FL, SNDRV_CHMAP_FR, SNDRV_CHMAP_NA, |
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SNDRV_CHMAP_FC, SNDRV_CHMAP_RL, SNDRV_CHMAP_RR, |
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SNDRV_CHMAP_RC, SNDRV_CHMAP_NA } }, |
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{ .channels = 8, /* CA_ID 0x0F */ |
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.map = { SNDRV_CHMAP_FL, SNDRV_CHMAP_FR, SNDRV_CHMAP_LFE, |
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SNDRV_CHMAP_FC, SNDRV_CHMAP_RL, SNDRV_CHMAP_RR, |
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SNDRV_CHMAP_RC, SNDRV_CHMAP_NA } }, |
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{ .channels = 8, /* CA_ID 0x10 */ |
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.map = { SNDRV_CHMAP_FL, SNDRV_CHMAP_FR, SNDRV_CHMAP_NA, |
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SNDRV_CHMAP_NA, SNDRV_CHMAP_RL, SNDRV_CHMAP_RR, |
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SNDRV_CHMAP_RLC, SNDRV_CHMAP_RRC } }, |
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{ .channels = 8, /* CA_ID 0x11 */ |
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.map = { SNDRV_CHMAP_FL, SNDRV_CHMAP_FR, SNDRV_CHMAP_LFE, |
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SNDRV_CHMAP_NA, SNDRV_CHMAP_RL, SNDRV_CHMAP_RR, |
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SNDRV_CHMAP_RLC, SNDRV_CHMAP_RRC } }, |
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{ .channels = 8, /* CA_ID 0x12 */ |
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.map = { SNDRV_CHMAP_FL, SNDRV_CHMAP_FR, SNDRV_CHMAP_NA, |
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SNDRV_CHMAP_FC, SNDRV_CHMAP_RL, SNDRV_CHMAP_RR, |
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SNDRV_CHMAP_RLC, SNDRV_CHMAP_RRC } }, |
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{ .channels = 8, /* CA_ID 0x13 */ |
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.map = { SNDRV_CHMAP_FL, SNDRV_CHMAP_FR, SNDRV_CHMAP_LFE, |
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SNDRV_CHMAP_FC, SNDRV_CHMAP_RL, SNDRV_CHMAP_RR, |
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SNDRV_CHMAP_RLC, SNDRV_CHMAP_RRC } }, |
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{ .channels = 8, /* CA_ID 0x14 */ |
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.map = { SNDRV_CHMAP_FL, SNDRV_CHMAP_FR, SNDRV_CHMAP_NA, |
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SNDRV_CHMAP_NA, SNDRV_CHMAP_NA, SNDRV_CHMAP_NA, |
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SNDRV_CHMAP_FLC, SNDRV_CHMAP_FRC } }, |
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{ .channels = 8, /* CA_ID 0x15 */ |
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.map = { SNDRV_CHMAP_FL, SNDRV_CHMAP_FR, SNDRV_CHMAP_LFE, |
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SNDRV_CHMAP_NA, SNDRV_CHMAP_NA, SNDRV_CHMAP_NA, |
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SNDRV_CHMAP_FLC, SNDRV_CHMAP_FRC } }, |
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{ .channels = 8, /* CA_ID 0x16 */ |
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.map = { SNDRV_CHMAP_FL, SNDRV_CHMAP_FR, SNDRV_CHMAP_NA, |
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SNDRV_CHMAP_FC, SNDRV_CHMAP_NA, SNDRV_CHMAP_NA, |
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SNDRV_CHMAP_FLC, SNDRV_CHMAP_FRC } }, |
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{ .channels = 8, /* CA_ID 0x17 */ |
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.map = { SNDRV_CHMAP_FL, SNDRV_CHMAP_FR, SNDRV_CHMAP_LFE, |
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SNDRV_CHMAP_FC, SNDRV_CHMAP_NA, SNDRV_CHMAP_NA, |
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SNDRV_CHMAP_FLC, SNDRV_CHMAP_FRC } }, |
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{ .channels = 8, /* CA_ID 0x18 */ |
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.map = { SNDRV_CHMAP_FL, SNDRV_CHMAP_FR, SNDRV_CHMAP_NA, |
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SNDRV_CHMAP_NA, SNDRV_CHMAP_NA, SNDRV_CHMAP_NA, |
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SNDRV_CHMAP_FLC, SNDRV_CHMAP_FRC } }, |
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{ .channels = 8, /* CA_ID 0x19 */ |
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.map = { SNDRV_CHMAP_FL, SNDRV_CHMAP_FR, SNDRV_CHMAP_LFE, |
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SNDRV_CHMAP_NA, SNDRV_CHMAP_NA, SNDRV_CHMAP_NA, |
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SNDRV_CHMAP_FLC, SNDRV_CHMAP_FRC } }, |
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{ .channels = 8, /* CA_ID 0x1A */ |
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.map = { SNDRV_CHMAP_FL, SNDRV_CHMAP_FR, SNDRV_CHMAP_NA, |
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SNDRV_CHMAP_FC, SNDRV_CHMAP_NA, SNDRV_CHMAP_NA, |
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SNDRV_CHMAP_FLC, SNDRV_CHMAP_FRC } }, |
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{ .channels = 8, /* CA_ID 0x1B */ |
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.map = { SNDRV_CHMAP_FL, SNDRV_CHMAP_FR, SNDRV_CHMAP_LFE, |
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SNDRV_CHMAP_FC, SNDRV_CHMAP_NA, SNDRV_CHMAP_NA, |
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SNDRV_CHMAP_FLC, SNDRV_CHMAP_FRC } }, |
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{ .channels = 8, /* CA_ID 0x1C */ |
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.map = { SNDRV_CHMAP_FL, SNDRV_CHMAP_FR, SNDRV_CHMAP_NA, |
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SNDRV_CHMAP_NA, SNDRV_CHMAP_NA, SNDRV_CHMAP_NA, |
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SNDRV_CHMAP_FLC, SNDRV_CHMAP_FRC } }, |
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{ .channels = 8, /* CA_ID 0x1D */ |
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.map = { SNDRV_CHMAP_FL, SNDRV_CHMAP_FR, SNDRV_CHMAP_LFE, |
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SNDRV_CHMAP_NA, SNDRV_CHMAP_NA, SNDRV_CHMAP_NA, |
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SNDRV_CHMAP_FLC, SNDRV_CHMAP_FRC } }, |
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{ .channels = 8, /* CA_ID 0x1E */ |
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.map = { SNDRV_CHMAP_FL, SNDRV_CHMAP_FR, SNDRV_CHMAP_NA, |
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SNDRV_CHMAP_FC, SNDRV_CHMAP_NA, SNDRV_CHMAP_NA, |
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SNDRV_CHMAP_FLC, SNDRV_CHMAP_FRC } }, |
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{ .channels = 8, /* CA_ID 0x1F */ |
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.map = { SNDRV_CHMAP_FL, SNDRV_CHMAP_FR, SNDRV_CHMAP_LFE, |
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SNDRV_CHMAP_FC, SNDRV_CHMAP_NA, SNDRV_CHMAP_NA, |
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SNDRV_CHMAP_FLC, SNDRV_CHMAP_FRC } }, |
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{ } |
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}; |
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/* |
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* hdmi_codec_channel_alloc: speaker configuration available for CEA |
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* |
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* This is an ordered list that must match with hdmi_codec_8ch_chmaps struct |
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* The preceding ones have better chances to be selected by |
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* hdmi_codec_get_ch_alloc_table_idx(). |
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*/ |
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static const struct hdmi_codec_cea_spk_alloc hdmi_codec_channel_alloc[] = { |
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{ .ca_id = 0x00, .n_ch = 2, |
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.mask = FL | FR}, |
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/* 2.1 */ |
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{ .ca_id = 0x01, .n_ch = 4, |
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.mask = FL | FR | LFE}, |
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/* Dolby Surround */ |
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{ .ca_id = 0x02, .n_ch = 4, |
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.mask = FL | FR | FC }, |
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/* surround51 */ |
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{ .ca_id = 0x0b, .n_ch = 6, |
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.mask = FL | FR | LFE | FC | RL | RR}, |
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/* surround40 */ |
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{ .ca_id = 0x08, .n_ch = 6, |
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.mask = FL | FR | RL | RR }, |
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/* surround41 */ |
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{ .ca_id = 0x09, .n_ch = 6, |
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.mask = FL | FR | LFE | RL | RR }, |
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/* surround50 */ |
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{ .ca_id = 0x0a, .n_ch = 6, |
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.mask = FL | FR | FC | RL | RR }, |
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/* 6.1 */ |
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{ .ca_id = 0x0f, .n_ch = 8, |
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.mask = FL | FR | LFE | FC | RL | RR | RC }, |
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/* surround71 */ |
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{ .ca_id = 0x13, .n_ch = 8, |
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.mask = FL | FR | LFE | FC | RL | RR | RLC | RRC }, |
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/* others */ |
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{ .ca_id = 0x03, .n_ch = 8, |
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.mask = FL | FR | LFE | FC }, |
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{ .ca_id = 0x04, .n_ch = 8, |
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.mask = FL | FR | RC}, |
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{ .ca_id = 0x05, .n_ch = 8, |
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.mask = FL | FR | LFE | RC }, |
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{ .ca_id = 0x06, .n_ch = 8, |
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.mask = FL | FR | FC | RC }, |
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{ .ca_id = 0x07, .n_ch = 8, |
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.mask = FL | FR | LFE | FC | RC }, |
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{ .ca_id = 0x0c, .n_ch = 8, |
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.mask = FL | FR | RC | RL | RR }, |
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{ .ca_id = 0x0d, .n_ch = 8, |
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.mask = FL | FR | LFE | RL | RR | RC }, |
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{ .ca_id = 0x0e, .n_ch = 8, |
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.mask = FL | FR | FC | RL | RR | RC }, |
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{ .ca_id = 0x10, .n_ch = 8, |
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.mask = FL | FR | RL | RR | RLC | RRC }, |
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{ .ca_id = 0x11, .n_ch = 8, |
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.mask = FL | FR | LFE | RL | RR | RLC | RRC }, |
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{ .ca_id = 0x12, .n_ch = 8, |
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.mask = FL | FR | FC | RL | RR | RLC | RRC }, |
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{ .ca_id = 0x14, .n_ch = 8, |
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.mask = FL | FR | FLC | FRC }, |
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{ .ca_id = 0x15, .n_ch = 8, |
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.mask = FL | FR | LFE | FLC | FRC }, |
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{ .ca_id = 0x16, .n_ch = 8, |
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.mask = FL | FR | FC | FLC | FRC }, |
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{ .ca_id = 0x17, .n_ch = 8, |
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.mask = FL | FR | LFE | FC | FLC | FRC }, |
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{ .ca_id = 0x18, .n_ch = 8, |
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.mask = FL | FR | RC | FLC | FRC }, |
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{ .ca_id = 0x19, .n_ch = 8, |
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.mask = FL | FR | LFE | RC | FLC | FRC }, |
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{ .ca_id = 0x1a, .n_ch = 8, |
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.mask = FL | FR | RC | FC | FLC | FRC }, |
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{ .ca_id = 0x1b, .n_ch = 8, |
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.mask = FL | FR | LFE | RC | FC | FLC | FRC }, |
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{ .ca_id = 0x1c, .n_ch = 8, |
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.mask = FL | FR | RL | RR | FLC | FRC }, |
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{ .ca_id = 0x1d, .n_ch = 8, |
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.mask = FL | FR | LFE | RL | RR | FLC | FRC }, |
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{ .ca_id = 0x1e, .n_ch = 8, |
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.mask = FL | FR | FC | RL | RR | FLC | FRC }, |
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{ .ca_id = 0x1f, .n_ch = 8, |
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.mask = FL | FR | LFE | FC | RL | RR | FLC | FRC }, |
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}; |
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struct hdmi_codec_priv { |
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struct hdmi_codec_pdata hcd; |
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uint8_t eld[MAX_ELD_BYTES]; |
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struct snd_pcm_chmap *chmap_info; |
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unsigned int chmap_idx; |
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struct mutex lock; |
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bool busy; |
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struct snd_soc_jack *jack; |
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unsigned int jack_status; |
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u8 iec_status[AES_IEC958_STATUS_SIZE]; |
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}; |
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static const struct snd_soc_dapm_widget hdmi_widgets[] = { |
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SND_SOC_DAPM_OUTPUT("TX"), |
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SND_SOC_DAPM_OUTPUT("RX"), |
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}; |
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enum { |
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DAI_ID_I2S = 0, |
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DAI_ID_SPDIF, |
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}; |
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static int hdmi_eld_ctl_info(struct snd_kcontrol *kcontrol, |
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struct snd_ctl_elem_info *uinfo) |
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{ |
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uinfo->type = SNDRV_CTL_ELEM_TYPE_BYTES; |
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uinfo->count = sizeof_field(struct hdmi_codec_priv, eld); |
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return 0; |
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} |
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static int hdmi_eld_ctl_get(struct snd_kcontrol *kcontrol, |
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struct snd_ctl_elem_value *ucontrol) |
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{ |
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struct snd_soc_component *component = snd_kcontrol_chip(kcontrol); |
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struct hdmi_codec_priv *hcp = snd_soc_component_get_drvdata(component); |
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memcpy(ucontrol->value.bytes.data, hcp->eld, sizeof(hcp->eld)); |
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return 0; |
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} |
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static unsigned long hdmi_codec_spk_mask_from_alloc(int spk_alloc) |
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{ |
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int i; |
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static const unsigned long hdmi_codec_eld_spk_alloc_bits[] = { |
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[0] = FL | FR, [1] = LFE, [2] = FC, [3] = RL | RR, |
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[4] = RC, [5] = FLC | FRC, [6] = RLC | RRC, |
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}; |
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unsigned long spk_mask = 0; |
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for (i = 0; i < ARRAY_SIZE(hdmi_codec_eld_spk_alloc_bits); i++) { |
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if (spk_alloc & (1 << i)) |
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spk_mask |= hdmi_codec_eld_spk_alloc_bits[i]; |
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} |
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return spk_mask; |
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} |
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static void hdmi_codec_eld_chmap(struct hdmi_codec_priv *hcp) |
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{ |
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u8 spk_alloc; |
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unsigned long spk_mask; |
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spk_alloc = drm_eld_get_spk_alloc(hcp->eld); |
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spk_mask = hdmi_codec_spk_mask_from_alloc(spk_alloc); |
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/* Detect if only stereo supported, else return 8 channels mappings */ |
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if ((spk_mask & ~(FL | FR)) && hcp->chmap_info->max_channels > 2) |
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hcp->chmap_info->chmap = hdmi_codec_8ch_chmaps; |
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else |
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hcp->chmap_info->chmap = hdmi_codec_stereo_chmaps; |
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} |
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static int hdmi_codec_get_ch_alloc_table_idx(struct hdmi_codec_priv *hcp, |
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unsigned char channels) |
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{ |
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int i; |
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u8 spk_alloc; |
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unsigned long spk_mask; |
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const struct hdmi_codec_cea_spk_alloc *cap = hdmi_codec_channel_alloc; |
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spk_alloc = drm_eld_get_spk_alloc(hcp->eld); |
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spk_mask = hdmi_codec_spk_mask_from_alloc(spk_alloc); |
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for (i = 0; i < ARRAY_SIZE(hdmi_codec_channel_alloc); i++, cap++) { |
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/* If spk_alloc == 0, HDMI is unplugged return stereo config*/ |
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if (!spk_alloc && cap->ca_id == 0) |
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return i; |
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if (cap->n_ch != channels) |
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continue; |
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if (!(cap->mask == (spk_mask & cap->mask))) |
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continue; |
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return i; |
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} |
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return -EINVAL; |
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} |
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static int hdmi_codec_chmap_ctl_get(struct snd_kcontrol *kcontrol, |
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struct snd_ctl_elem_value *ucontrol) |
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{ |
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unsigned const char *map; |
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unsigned int i; |
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struct snd_pcm_chmap *info = snd_kcontrol_chip(kcontrol); |
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struct hdmi_codec_priv *hcp = info->private_data; |
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map = info->chmap[hcp->chmap_idx].map; |
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for (i = 0; i < info->max_channels; i++) { |
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if (hcp->chmap_idx == HDMI_CODEC_CHMAP_IDX_UNKNOWN) |
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ucontrol->value.integer.value[i] = 0; |
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else |
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ucontrol->value.integer.value[i] = map[i]; |
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} |
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return 0; |
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} |
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static int hdmi_codec_iec958_info(struct snd_kcontrol *kcontrol, |
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struct snd_ctl_elem_info *uinfo) |
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{ |
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uinfo->type = SNDRV_CTL_ELEM_TYPE_IEC958; |
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uinfo->count = 1; |
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return 0; |
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} |
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static int hdmi_codec_iec958_default_get(struct snd_kcontrol *kcontrol, |
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struct snd_ctl_elem_value *ucontrol) |
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{ |
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struct snd_soc_component *component = snd_kcontrol_chip(kcontrol); |
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struct hdmi_codec_priv *hcp = snd_soc_component_get_drvdata(component); |
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memcpy(ucontrol->value.iec958.status, hcp->iec_status, |
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sizeof(hcp->iec_status)); |
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return 0; |
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} |
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static int hdmi_codec_iec958_default_put(struct snd_kcontrol *kcontrol, |
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struct snd_ctl_elem_value *ucontrol) |
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{ |
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struct snd_soc_component *component = snd_kcontrol_chip(kcontrol); |
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struct hdmi_codec_priv *hcp = snd_soc_component_get_drvdata(component); |
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memcpy(hcp->iec_status, ucontrol->value.iec958.status, |
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sizeof(hcp->iec_status)); |
|
|
|
return 0; |
|
} |
|
|
|
static int hdmi_codec_iec958_mask_get(struct snd_kcontrol *kcontrol, |
|
struct snd_ctl_elem_value *ucontrol) |
|
{ |
|
memset(ucontrol->value.iec958.status, 0xff, |
|
sizeof_field(struct hdmi_codec_priv, iec_status)); |
|
|
|
return 0; |
|
} |
|
|
|
static int hdmi_codec_startup(struct snd_pcm_substream *substream, |
|
struct snd_soc_dai *dai) |
|
{ |
|
struct hdmi_codec_priv *hcp = snd_soc_dai_get_drvdata(dai); |
|
bool tx = substream->stream == SNDRV_PCM_STREAM_PLAYBACK; |
|
int ret = 0; |
|
|
|
mutex_lock(&hcp->lock); |
|
if (hcp->busy) { |
|
dev_err(dai->dev, "Only one simultaneous stream supported!\n"); |
|
mutex_unlock(&hcp->lock); |
|
return -EINVAL; |
|
} |
|
|
|
if (hcp->hcd.ops->audio_startup) { |
|
ret = hcp->hcd.ops->audio_startup(dai->dev->parent, hcp->hcd.data); |
|
if (ret) |
|
goto err; |
|
} |
|
|
|
if (tx && hcp->hcd.ops->get_eld) { |
|
ret = hcp->hcd.ops->get_eld(dai->dev->parent, hcp->hcd.data, |
|
hcp->eld, sizeof(hcp->eld)); |
|
if (ret) |
|
goto err; |
|
|
|
ret = snd_pcm_hw_constraint_eld(substream->runtime, hcp->eld); |
|
if (ret) |
|
goto err; |
|
|
|
/* Select chmap supported */ |
|
hdmi_codec_eld_chmap(hcp); |
|
} |
|
|
|
hcp->busy = true; |
|
|
|
err: |
|
mutex_unlock(&hcp->lock); |
|
return ret; |
|
} |
|
|
|
static void hdmi_codec_shutdown(struct snd_pcm_substream *substream, |
|
struct snd_soc_dai *dai) |
|
{ |
|
struct hdmi_codec_priv *hcp = snd_soc_dai_get_drvdata(dai); |
|
|
|
hcp->chmap_idx = HDMI_CODEC_CHMAP_IDX_UNKNOWN; |
|
hcp->hcd.ops->audio_shutdown(dai->dev->parent, hcp->hcd.data); |
|
|
|
mutex_lock(&hcp->lock); |
|
hcp->busy = false; |
|
mutex_unlock(&hcp->lock); |
|
} |
|
|
|
static int hdmi_codec_fill_codec_params(struct snd_soc_dai *dai, |
|
unsigned int sample_width, |
|
unsigned int sample_rate, |
|
unsigned int channels, |
|
struct hdmi_codec_params *hp) |
|
{ |
|
struct hdmi_codec_priv *hcp = snd_soc_dai_get_drvdata(dai); |
|
int idx; |
|
|
|
/* Select a channel allocation that matches with ELD and pcm channels */ |
|
idx = hdmi_codec_get_ch_alloc_table_idx(hcp, channels); |
|
if (idx < 0) { |
|
dev_err(dai->dev, "Not able to map channels to speakers (%d)\n", |
|
idx); |
|
hcp->chmap_idx = HDMI_CODEC_CHMAP_IDX_UNKNOWN; |
|
return idx; |
|
} |
|
|
|
memset(hp, 0, sizeof(*hp)); |
|
|
|
hdmi_audio_infoframe_init(&hp->cea); |
|
hp->cea.channels = channels; |
|
hp->cea.coding_type = HDMI_AUDIO_CODING_TYPE_STREAM; |
|
hp->cea.sample_size = HDMI_AUDIO_SAMPLE_SIZE_STREAM; |
|
hp->cea.sample_frequency = HDMI_AUDIO_SAMPLE_FREQUENCY_STREAM; |
|
hp->cea.channel_allocation = hdmi_codec_channel_alloc[idx].ca_id; |
|
|
|
hp->sample_width = sample_width; |
|
hp->sample_rate = sample_rate; |
|
hp->channels = channels; |
|
|
|
hcp->chmap_idx = hdmi_codec_channel_alloc[idx].ca_id; |
|
|
|
return 0; |
|
} |
|
|
|
static int hdmi_codec_hw_params(struct snd_pcm_substream *substream, |
|
struct snd_pcm_hw_params *params, |
|
struct snd_soc_dai *dai) |
|
{ |
|
struct hdmi_codec_priv *hcp = snd_soc_dai_get_drvdata(dai); |
|
struct hdmi_codec_daifmt *cf = dai->playback_dma_data; |
|
struct hdmi_codec_params hp = { |
|
.iec = { |
|
.status = { 0 }, |
|
.subcode = { 0 }, |
|
.pad = 0, |
|
.dig_subframe = { 0 }, |
|
} |
|
}; |
|
int ret; |
|
|
|
if (!hcp->hcd.ops->hw_params) |
|
return 0; |
|
|
|
dev_dbg(dai->dev, "%s() width %d rate %d channels %d\n", __func__, |
|
params_width(params), params_rate(params), |
|
params_channels(params)); |
|
|
|
ret = hdmi_codec_fill_codec_params(dai, |
|
params_width(params), |
|
params_rate(params), |
|
params_channels(params), |
|
&hp); |
|
if (ret < 0) |
|
return ret; |
|
|
|
memcpy(hp.iec.status, hcp->iec_status, sizeof(hp.iec.status)); |
|
ret = snd_pcm_fill_iec958_consumer_hw_params(params, hp.iec.status, |
|
sizeof(hp.iec.status)); |
|
if (ret < 0) { |
|
dev_err(dai->dev, "Creating IEC958 channel status failed %d\n", |
|
ret); |
|
return ret; |
|
} |
|
|
|
cf->bit_fmt = params_format(params); |
|
return hcp->hcd.ops->hw_params(dai->dev->parent, hcp->hcd.data, |
|
cf, &hp); |
|
} |
|
|
|
static int hdmi_codec_prepare(struct snd_pcm_substream *substream, |
|
struct snd_soc_dai *dai) |
|
{ |
|
struct hdmi_codec_priv *hcp = snd_soc_dai_get_drvdata(dai); |
|
struct hdmi_codec_daifmt *cf = dai->playback_dma_data; |
|
struct snd_pcm_runtime *runtime = substream->runtime; |
|
unsigned int channels = runtime->channels; |
|
unsigned int width = snd_pcm_format_width(runtime->format); |
|
unsigned int rate = runtime->rate; |
|
struct hdmi_codec_params hp; |
|
int ret; |
|
|
|
if (!hcp->hcd.ops->prepare) |
|
return 0; |
|
|
|
dev_dbg(dai->dev, "%s() width %d rate %d channels %d\n", __func__, |
|
width, rate, channels); |
|
|
|
ret = hdmi_codec_fill_codec_params(dai, width, rate, channels, &hp); |
|
if (ret < 0) |
|
return ret; |
|
|
|
memcpy(hp.iec.status, hcp->iec_status, sizeof(hp.iec.status)); |
|
ret = snd_pcm_fill_iec958_consumer(runtime, hp.iec.status, |
|
sizeof(hp.iec.status)); |
|
if (ret < 0) { |
|
dev_err(dai->dev, "Creating IEC958 channel status failed %d\n", |
|
ret); |
|
return ret; |
|
} |
|
|
|
cf->bit_fmt = runtime->format; |
|
return hcp->hcd.ops->prepare(dai->dev->parent, hcp->hcd.data, |
|
cf, &hp); |
|
} |
|
|
|
static int hdmi_codec_i2s_set_fmt(struct snd_soc_dai *dai, |
|
unsigned int fmt) |
|
{ |
|
struct hdmi_codec_daifmt *cf = dai->playback_dma_data; |
|
|
|
/* Reset daifmt */ |
|
memset(cf, 0, sizeof(*cf)); |
|
|
|
switch (fmt & SND_SOC_DAIFMT_MASTER_MASK) { |
|
case SND_SOC_DAIFMT_CBM_CFM: |
|
cf->bit_clk_master = 1; |
|
cf->frame_clk_master = 1; |
|
break; |
|
case SND_SOC_DAIFMT_CBS_CFM: |
|
cf->frame_clk_master = 1; |
|
break; |
|
case SND_SOC_DAIFMT_CBM_CFS: |
|
cf->bit_clk_master = 1; |
|
break; |
|
case SND_SOC_DAIFMT_CBS_CFS: |
|
break; |
|
default: |
|
return -EINVAL; |
|
} |
|
|
|
switch (fmt & SND_SOC_DAIFMT_INV_MASK) { |
|
case SND_SOC_DAIFMT_NB_NF: |
|
break; |
|
case SND_SOC_DAIFMT_NB_IF: |
|
cf->frame_clk_inv = 1; |
|
break; |
|
case SND_SOC_DAIFMT_IB_NF: |
|
cf->bit_clk_inv = 1; |
|
break; |
|
case SND_SOC_DAIFMT_IB_IF: |
|
cf->frame_clk_inv = 1; |
|
cf->bit_clk_inv = 1; |
|
break; |
|
} |
|
|
|
switch (fmt & SND_SOC_DAIFMT_FORMAT_MASK) { |
|
case SND_SOC_DAIFMT_I2S: |
|
cf->fmt = HDMI_I2S; |
|
break; |
|
case SND_SOC_DAIFMT_DSP_A: |
|
cf->fmt = HDMI_DSP_A; |
|
break; |
|
case SND_SOC_DAIFMT_DSP_B: |
|
cf->fmt = HDMI_DSP_B; |
|
break; |
|
case SND_SOC_DAIFMT_RIGHT_J: |
|
cf->fmt = HDMI_RIGHT_J; |
|
break; |
|
case SND_SOC_DAIFMT_LEFT_J: |
|
cf->fmt = HDMI_LEFT_J; |
|
break; |
|
case SND_SOC_DAIFMT_AC97: |
|
cf->fmt = HDMI_AC97; |
|
break; |
|
default: |
|
dev_err(dai->dev, "Invalid DAI interface format\n"); |
|
return -EINVAL; |
|
} |
|
|
|
return 0; |
|
} |
|
|
|
static int hdmi_codec_mute(struct snd_soc_dai *dai, int mute, int direction) |
|
{ |
|
struct hdmi_codec_priv *hcp = snd_soc_dai_get_drvdata(dai); |
|
|
|
/* |
|
* ignore if direction was CAPTURE |
|
* and it had .no_capture_mute flag |
|
* see |
|
* snd_soc_dai_digital_mute() |
|
*/ |
|
if (hcp->hcd.ops->mute_stream && |
|
(direction == SNDRV_PCM_STREAM_PLAYBACK || |
|
!hcp->hcd.ops->no_capture_mute)) |
|
return hcp->hcd.ops->mute_stream(dai->dev->parent, |
|
hcp->hcd.data, |
|
mute, direction); |
|
|
|
return -ENOTSUPP; |
|
} |
|
|
|
/* |
|
* This driver can select all SND_SOC_DAIFMT_CBx_CFx, |
|
* but need to be selected from Sound Card, not be auto selected. |
|
* Because it might be used from other driver. |
|
* For example, |
|
* ${LINUX}/drivers/gpu/drm/bridge/synopsys/dw-hdmi-i2s-audio.c |
|
*/ |
|
static u64 hdmi_codec_formats = |
|
SND_SOC_POSSIBLE_DAIFMT_NB_NF | |
|
SND_SOC_POSSIBLE_DAIFMT_NB_IF | |
|
SND_SOC_POSSIBLE_DAIFMT_IB_NF | |
|
SND_SOC_POSSIBLE_DAIFMT_IB_IF | |
|
SND_SOC_POSSIBLE_DAIFMT_I2S | |
|
SND_SOC_POSSIBLE_DAIFMT_DSP_A | |
|
SND_SOC_POSSIBLE_DAIFMT_DSP_B | |
|
SND_SOC_POSSIBLE_DAIFMT_RIGHT_J | |
|
SND_SOC_POSSIBLE_DAIFMT_LEFT_J | |
|
SND_SOC_POSSIBLE_DAIFMT_AC97; |
|
|
|
static const struct snd_soc_dai_ops hdmi_codec_i2s_dai_ops = { |
|
.startup = hdmi_codec_startup, |
|
.shutdown = hdmi_codec_shutdown, |
|
.hw_params = hdmi_codec_hw_params, |
|
.prepare = hdmi_codec_prepare, |
|
.set_fmt = hdmi_codec_i2s_set_fmt, |
|
.mute_stream = hdmi_codec_mute, |
|
.auto_selectable_formats = &hdmi_codec_formats, |
|
.num_auto_selectable_formats = 1, |
|
}; |
|
|
|
static const struct snd_soc_dai_ops hdmi_codec_spdif_dai_ops = { |
|
.startup = hdmi_codec_startup, |
|
.shutdown = hdmi_codec_shutdown, |
|
.hw_params = hdmi_codec_hw_params, |
|
.mute_stream = hdmi_codec_mute, |
|
}; |
|
|
|
#define HDMI_RATES (SNDRV_PCM_RATE_32000 | SNDRV_PCM_RATE_44100 |\ |
|
SNDRV_PCM_RATE_48000 | SNDRV_PCM_RATE_88200 |\ |
|
SNDRV_PCM_RATE_96000 | SNDRV_PCM_RATE_176400 |\ |
|
SNDRV_PCM_RATE_192000) |
|
|
|
#define SPDIF_FORMATS (SNDRV_PCM_FMTBIT_S16_LE | SNDRV_PCM_FMTBIT_S16_BE |\ |
|
SNDRV_PCM_FMTBIT_S20_3LE | SNDRV_PCM_FMTBIT_S20_3BE |\ |
|
SNDRV_PCM_FMTBIT_S24_3LE | SNDRV_PCM_FMTBIT_S24_3BE |\ |
|
SNDRV_PCM_FMTBIT_S24_LE | SNDRV_PCM_FMTBIT_S24_BE) |
|
|
|
/* |
|
* This list is only for formats allowed on the I2S bus. So there is |
|
* some formats listed that are not supported by HDMI interface. For |
|
* instance allowing the 32-bit formats enables 24-precision with CPU |
|
* DAIs that do not support 24-bit formats. If the extra formats cause |
|
* problems, we should add the video side driver an option to disable |
|
* them. |
|
*/ |
|
#define I2S_FORMATS (SNDRV_PCM_FMTBIT_S16_LE | SNDRV_PCM_FMTBIT_S16_BE |\ |
|
SNDRV_PCM_FMTBIT_S20_3LE | SNDRV_PCM_FMTBIT_S20_3BE |\ |
|
SNDRV_PCM_FMTBIT_S24_3LE | SNDRV_PCM_FMTBIT_S24_3BE |\ |
|
SNDRV_PCM_FMTBIT_S24_LE | SNDRV_PCM_FMTBIT_S24_BE |\ |
|
SNDRV_PCM_FMTBIT_S32_LE | SNDRV_PCM_FMTBIT_S32_BE |\ |
|
SNDRV_PCM_FMTBIT_IEC958_SUBFRAME_LE) |
|
|
|
static struct snd_kcontrol_new hdmi_codec_controls[] = { |
|
{ |
|
.access = SNDRV_CTL_ELEM_ACCESS_READ, |
|
.iface = SNDRV_CTL_ELEM_IFACE_PCM, |
|
.name = SNDRV_CTL_NAME_IEC958("", PLAYBACK, MASK), |
|
.info = hdmi_codec_iec958_info, |
|
.get = hdmi_codec_iec958_mask_get, |
|
}, |
|
{ |
|
.iface = SNDRV_CTL_ELEM_IFACE_PCM, |
|
.name = SNDRV_CTL_NAME_IEC958("", PLAYBACK, DEFAULT), |
|
.info = hdmi_codec_iec958_info, |
|
.get = hdmi_codec_iec958_default_get, |
|
.put = hdmi_codec_iec958_default_put, |
|
}, |
|
{ |
|
.access = (SNDRV_CTL_ELEM_ACCESS_READ | |
|
SNDRV_CTL_ELEM_ACCESS_VOLATILE), |
|
.iface = SNDRV_CTL_ELEM_IFACE_PCM, |
|
.name = "ELD", |
|
.info = hdmi_eld_ctl_info, |
|
.get = hdmi_eld_ctl_get, |
|
}, |
|
}; |
|
|
|
static int hdmi_codec_pcm_new(struct snd_soc_pcm_runtime *rtd, |
|
struct snd_soc_dai *dai) |
|
{ |
|
struct snd_soc_dai_driver *drv = dai->driver; |
|
struct hdmi_codec_priv *hcp = snd_soc_dai_get_drvdata(dai); |
|
unsigned int i; |
|
int ret; |
|
|
|
ret = snd_pcm_add_chmap_ctls(rtd->pcm, SNDRV_PCM_STREAM_PLAYBACK, |
|
NULL, drv->playback.channels_max, 0, |
|
&hcp->chmap_info); |
|
if (ret < 0) |
|
return ret; |
|
|
|
/* override handlers */ |
|
hcp->chmap_info->private_data = hcp; |
|
hcp->chmap_info->kctl->get = hdmi_codec_chmap_ctl_get; |
|
|
|
/* default chmap supported is stereo */ |
|
hcp->chmap_info->chmap = hdmi_codec_stereo_chmaps; |
|
hcp->chmap_idx = HDMI_CODEC_CHMAP_IDX_UNKNOWN; |
|
|
|
for (i = 0; i < ARRAY_SIZE(hdmi_codec_controls); i++) { |
|
struct snd_kcontrol *kctl; |
|
|
|
/* add ELD ctl with the device number corresponding to the PCM stream */ |
|
kctl = snd_ctl_new1(&hdmi_codec_controls[i], dai->component); |
|
if (!kctl) |
|
return -ENOMEM; |
|
|
|
kctl->id.device = rtd->pcm->device; |
|
ret = snd_ctl_add(rtd->card->snd_card, kctl); |
|
if (ret < 0) |
|
return ret; |
|
} |
|
|
|
return 0; |
|
} |
|
|
|
static int hdmi_dai_probe(struct snd_soc_dai *dai) |
|
{ |
|
struct snd_soc_dapm_context *dapm; |
|
struct hdmi_codec_daifmt *daifmt; |
|
struct snd_soc_dapm_route route[] = { |
|
{ |
|
.sink = "TX", |
|
.source = dai->driver->playback.stream_name, |
|
}, |
|
{ |
|
.sink = dai->driver->capture.stream_name, |
|
.source = "RX", |
|
}, |
|
}; |
|
int ret; |
|
|
|
dapm = snd_soc_component_get_dapm(dai->component); |
|
ret = snd_soc_dapm_add_routes(dapm, route, 2); |
|
if (ret) |
|
return ret; |
|
|
|
daifmt = kzalloc(sizeof(*daifmt), GFP_KERNEL); |
|
if (!daifmt) |
|
return -ENOMEM; |
|
|
|
dai->playback_dma_data = daifmt; |
|
return 0; |
|
} |
|
|
|
static void hdmi_codec_jack_report(struct hdmi_codec_priv *hcp, |
|
unsigned int jack_status) |
|
{ |
|
if (hcp->jack && jack_status != hcp->jack_status) { |
|
snd_soc_jack_report(hcp->jack, jack_status, SND_JACK_LINEOUT); |
|
hcp->jack_status = jack_status; |
|
} |
|
} |
|
|
|
static void plugged_cb(struct device *dev, bool plugged) |
|
{ |
|
struct hdmi_codec_priv *hcp = dev_get_drvdata(dev); |
|
|
|
if (plugged) { |
|
if (hcp->hcd.ops->get_eld) { |
|
hcp->hcd.ops->get_eld(dev->parent, hcp->hcd.data, |
|
hcp->eld, sizeof(hcp->eld)); |
|
} |
|
hdmi_codec_jack_report(hcp, SND_JACK_LINEOUT); |
|
} else { |
|
hdmi_codec_jack_report(hcp, 0); |
|
memset(hcp->eld, 0, sizeof(hcp->eld)); |
|
} |
|
} |
|
|
|
static int hdmi_codec_set_jack(struct snd_soc_component *component, |
|
struct snd_soc_jack *jack, |
|
void *data) |
|
{ |
|
struct hdmi_codec_priv *hcp = snd_soc_component_get_drvdata(component); |
|
int ret = -ENOTSUPP; |
|
|
|
if (hcp->hcd.ops->hook_plugged_cb) { |
|
hcp->jack = jack; |
|
ret = hcp->hcd.ops->hook_plugged_cb(component->dev->parent, |
|
hcp->hcd.data, |
|
plugged_cb, |
|
component->dev); |
|
if (ret) |
|
hcp->jack = NULL; |
|
} |
|
return ret; |
|
} |
|
|
|
static int hdmi_dai_spdif_probe(struct snd_soc_dai *dai) |
|
{ |
|
struct hdmi_codec_daifmt *cf; |
|
int ret; |
|
|
|
ret = hdmi_dai_probe(dai); |
|
if (ret) |
|
return ret; |
|
|
|
cf = dai->playback_dma_data; |
|
cf->fmt = HDMI_SPDIF; |
|
|
|
return 0; |
|
} |
|
|
|
static int hdmi_codec_dai_remove(struct snd_soc_dai *dai) |
|
{ |
|
kfree(dai->playback_dma_data); |
|
return 0; |
|
} |
|
|
|
static const struct snd_soc_dai_driver hdmi_i2s_dai = { |
|
.name = "i2s-hifi", |
|
.id = DAI_ID_I2S, |
|
.probe = hdmi_dai_probe, |
|
.remove = hdmi_codec_dai_remove, |
|
.playback = { |
|
.stream_name = "I2S Playback", |
|
.channels_min = 2, |
|
.channels_max = 8, |
|
.rates = HDMI_RATES, |
|
.formats = I2S_FORMATS, |
|
.sig_bits = 24, |
|
}, |
|
.capture = { |
|
.stream_name = "Capture", |
|
.channels_min = 2, |
|
.channels_max = 8, |
|
.rates = HDMI_RATES, |
|
.formats = I2S_FORMATS, |
|
.sig_bits = 24, |
|
}, |
|
.ops = &hdmi_codec_i2s_dai_ops, |
|
.pcm_new = hdmi_codec_pcm_new, |
|
}; |
|
|
|
static const struct snd_soc_dai_driver hdmi_spdif_dai = { |
|
.name = "spdif-hifi", |
|
.id = DAI_ID_SPDIF, |
|
.probe = hdmi_dai_spdif_probe, |
|
.remove = hdmi_codec_dai_remove, |
|
.playback = { |
|
.stream_name = "SPDIF Playback", |
|
.channels_min = 2, |
|
.channels_max = 2, |
|
.rates = HDMI_RATES, |
|
.formats = SPDIF_FORMATS, |
|
}, |
|
.capture = { |
|
.stream_name = "Capture", |
|
.channels_min = 2, |
|
.channels_max = 2, |
|
.rates = HDMI_RATES, |
|
.formats = SPDIF_FORMATS, |
|
}, |
|
.ops = &hdmi_codec_spdif_dai_ops, |
|
.pcm_new = hdmi_codec_pcm_new, |
|
}; |
|
|
|
static int hdmi_of_xlate_dai_id(struct snd_soc_component *component, |
|
struct device_node *endpoint) |
|
{ |
|
struct hdmi_codec_priv *hcp = snd_soc_component_get_drvdata(component); |
|
int ret = -ENOTSUPP; /* see snd_soc_get_dai_id() */ |
|
|
|
if (hcp->hcd.ops->get_dai_id) |
|
ret = hcp->hcd.ops->get_dai_id(component, endpoint); |
|
|
|
return ret; |
|
} |
|
|
|
static void hdmi_remove(struct snd_soc_component *component) |
|
{ |
|
struct hdmi_codec_priv *hcp = snd_soc_component_get_drvdata(component); |
|
|
|
if (hcp->hcd.ops->hook_plugged_cb) |
|
hcp->hcd.ops->hook_plugged_cb(component->dev->parent, |
|
hcp->hcd.data, NULL, NULL); |
|
} |
|
|
|
static const struct snd_soc_component_driver hdmi_driver = { |
|
.remove = hdmi_remove, |
|
.dapm_widgets = hdmi_widgets, |
|
.num_dapm_widgets = ARRAY_SIZE(hdmi_widgets), |
|
.of_xlate_dai_id = hdmi_of_xlate_dai_id, |
|
.idle_bias_on = 1, |
|
.use_pmdown_time = 1, |
|
.endianness = 1, |
|
.non_legacy_dai_naming = 1, |
|
.set_jack = hdmi_codec_set_jack, |
|
}; |
|
|
|
static int hdmi_codec_probe(struct platform_device *pdev) |
|
{ |
|
struct hdmi_codec_pdata *hcd = pdev->dev.platform_data; |
|
struct snd_soc_dai_driver *daidrv; |
|
struct device *dev = &pdev->dev; |
|
struct hdmi_codec_priv *hcp; |
|
int dai_count, i = 0; |
|
int ret; |
|
|
|
if (!hcd) { |
|
dev_err(dev, "%s: No platform data\n", __func__); |
|
return -EINVAL; |
|
} |
|
|
|
dai_count = hcd->i2s + hcd->spdif; |
|
if (dai_count < 1 || !hcd->ops || |
|
(!hcd->ops->hw_params && !hcd->ops->prepare) || |
|
!hcd->ops->audio_shutdown) { |
|
dev_err(dev, "%s: Invalid parameters\n", __func__); |
|
return -EINVAL; |
|
} |
|
|
|
hcp = devm_kzalloc(dev, sizeof(*hcp), GFP_KERNEL); |
|
if (!hcp) |
|
return -ENOMEM; |
|
|
|
hcp->hcd = *hcd; |
|
mutex_init(&hcp->lock); |
|
|
|
ret = snd_pcm_create_iec958_consumer_default(hcp->iec_status, |
|
sizeof(hcp->iec_status)); |
|
if (ret < 0) |
|
return ret; |
|
|
|
daidrv = devm_kcalloc(dev, dai_count, sizeof(*daidrv), GFP_KERNEL); |
|
if (!daidrv) |
|
return -ENOMEM; |
|
|
|
if (hcd->i2s) { |
|
daidrv[i] = hdmi_i2s_dai; |
|
daidrv[i].playback.channels_max = hcd->max_i2s_channels; |
|
i++; |
|
} |
|
|
|
if (hcd->spdif) |
|
daidrv[i] = hdmi_spdif_dai; |
|
|
|
dev_set_drvdata(dev, hcp); |
|
|
|
ret = devm_snd_soc_register_component(dev, &hdmi_driver, daidrv, |
|
dai_count); |
|
if (ret) { |
|
dev_err(dev, "%s: snd_soc_register_component() failed (%d)\n", |
|
__func__, ret); |
|
return ret; |
|
} |
|
return 0; |
|
} |
|
|
|
static struct platform_driver hdmi_codec_driver = { |
|
.driver = { |
|
.name = HDMI_CODEC_DRV_NAME, |
|
}, |
|
.probe = hdmi_codec_probe, |
|
}; |
|
|
|
module_platform_driver(hdmi_codec_driver); |
|
|
|
MODULE_AUTHOR("Jyri Sarha <[email protected]>"); |
|
MODULE_DESCRIPTION("HDMI Audio Codec Driver"); |
|
MODULE_LICENSE("GPL"); |
|
MODULE_ALIAS("platform:" HDMI_CODEC_DRV_NAME);
|
|
|