1853 lines
47 KiB
C
1853 lines
47 KiB
C
/*
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* hdac_hdmi.c - ASoc HDA-HDMI codec driver for Intel platforms
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*
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* Copyright (C) 2014-2015 Intel Corp
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* Author: Samreen Nilofer <samreen.nilofer@intel.com>
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* Subhransu S. Prusty <subhransu.s.prusty@intel.com>
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* ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
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*
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* This program is free software; you can redistribute it and/or modify
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* it under the terms of the GNU General Public License as published by
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* the Free Software Foundation; version 2 of the License.
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*
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* This program is distributed in the hope that it will be useful, but
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* WITHOUT ANY WARRANTY; without even the implied warranty of
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* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
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* General Public License for more details.
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*
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* ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
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*/
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#include <linux/init.h>
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#include <linux/delay.h>
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#include <linux/module.h>
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#include <linux/pm_runtime.h>
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#include <linux/hdmi.h>
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#include <drm/drm_edid.h>
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#include <sound/pcm_params.h>
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#include <sound/jack.h>
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#include <sound/soc.h>
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#include <sound/hdaudio_ext.h>
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#include <sound/hda_i915.h>
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#include <sound/pcm_drm_eld.h>
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#include <sound/hda_chmap.h>
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#include "../../hda/local.h"
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#include "hdac_hdmi.h"
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#define NAME_SIZE 32
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#define AMP_OUT_MUTE 0xb080
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#define AMP_OUT_UNMUTE 0xb000
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#define PIN_OUT (AC_PINCTL_OUT_EN)
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#define HDA_MAX_CONNECTIONS 32
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#define HDA_MAX_CVTS 3
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#define ELD_MAX_SIZE 256
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#define ELD_FIXED_BYTES 20
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struct hdac_hdmi_cvt_params {
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unsigned int channels_min;
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unsigned int channels_max;
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u32 rates;
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u64 formats;
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unsigned int maxbps;
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};
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struct hdac_hdmi_cvt {
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struct list_head head;
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hda_nid_t nid;
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const char *name;
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struct hdac_hdmi_cvt_params params;
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};
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/* Currently only spk_alloc, more to be added */
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struct hdac_hdmi_parsed_eld {
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u8 spk_alloc;
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};
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struct hdac_hdmi_eld {
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bool monitor_present;
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bool eld_valid;
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int eld_size;
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char eld_buffer[ELD_MAX_SIZE];
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struct hdac_hdmi_parsed_eld info;
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};
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struct hdac_hdmi_pin {
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struct list_head head;
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hda_nid_t nid;
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int num_mux_nids;
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hda_nid_t mux_nids[HDA_MAX_CONNECTIONS];
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struct hdac_hdmi_eld eld;
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struct hdac_ext_device *edev;
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int repoll_count;
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struct delayed_work work;
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struct mutex lock;
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bool chmap_set;
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unsigned char chmap[8]; /* ALSA API channel-map */
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int channels; /* current number of channels */
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};
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struct hdac_hdmi_pcm {
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struct list_head head;
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int pcm_id;
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struct hdac_hdmi_pin *pin;
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struct hdac_hdmi_cvt *cvt;
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struct snd_jack *jack;
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};
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struct hdac_hdmi_dai_pin_map {
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int dai_id;
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struct hdac_hdmi_pin *pin;
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struct hdac_hdmi_cvt *cvt;
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};
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struct hdac_hdmi_priv {
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struct hdac_hdmi_dai_pin_map dai_map[HDA_MAX_CVTS];
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struct list_head pin_list;
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struct list_head cvt_list;
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struct list_head pcm_list;
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int num_pin;
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int num_cvt;
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struct mutex pin_mutex;
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struct hdac_chmap chmap;
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};
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static struct hdac_hdmi_pcm *get_hdmi_pcm_from_id(struct hdac_hdmi_priv *hdmi,
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int pcm_idx)
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{
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struct hdac_hdmi_pcm *pcm;
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list_for_each_entry(pcm, &hdmi->pcm_list, head) {
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if (pcm->pcm_id == pcm_idx)
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return pcm;
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}
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return NULL;
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}
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static inline struct hdac_ext_device *to_hda_ext_device(struct device *dev)
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{
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struct hdac_device *hdac = dev_to_hdac_dev(dev);
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return to_ehdac_device(hdac);
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}
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static unsigned int sad_format(const u8 *sad)
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{
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return ((sad[0] >> 0x3) & 0x1f);
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}
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static unsigned int sad_sample_bits_lpcm(const u8 *sad)
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{
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return (sad[2] & 7);
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}
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static int hdac_hdmi_eld_limit_formats(struct snd_pcm_runtime *runtime,
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void *eld)
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{
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u64 formats = SNDRV_PCM_FMTBIT_S16;
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int i;
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const u8 *sad, *eld_buf = eld;
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sad = drm_eld_sad(eld_buf);
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if (!sad)
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goto format_constraint;
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for (i = drm_eld_sad_count(eld_buf); i > 0; i--, sad += 3) {
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if (sad_format(sad) == 1) { /* AUDIO_CODING_TYPE_LPCM */
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/*
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* the controller support 20 and 24 bits in 32 bit
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* container so we set S32
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*/
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if (sad_sample_bits_lpcm(sad) & 0x6)
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formats |= SNDRV_PCM_FMTBIT_S32;
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}
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}
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format_constraint:
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return snd_pcm_hw_constraint_mask64(runtime, SNDRV_PCM_HW_PARAM_FORMAT,
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formats);
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}
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/* HDMI ELD routines */
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static unsigned int hdac_hdmi_get_eld_data(struct hdac_device *codec,
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hda_nid_t nid, int byte_index)
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{
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unsigned int val;
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val = snd_hdac_codec_read(codec, nid, 0, AC_VERB_GET_HDMI_ELDD,
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byte_index);
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dev_dbg(&codec->dev, "HDMI: ELD data byte %d: 0x%x\n",
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byte_index, val);
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return val;
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}
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static int hdac_hdmi_get_eld_size(struct hdac_device *codec, hda_nid_t nid)
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{
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return snd_hdac_codec_read(codec, nid, 0, AC_VERB_GET_HDMI_DIP_SIZE,
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AC_DIPSIZE_ELD_BUF);
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}
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/*
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* This function queries the ELD size and ELD data and fills in the buffer
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* passed by user
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*/
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static int hdac_hdmi_get_eld(struct hdac_device *codec, hda_nid_t nid,
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unsigned char *buf, int *eld_size)
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{
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int i, size, ret = 0;
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/*
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* ELD size is initialized to zero in caller function. If no errors and
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* ELD is valid, actual eld_size is assigned.
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*/
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size = hdac_hdmi_get_eld_size(codec, nid);
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if (size < ELD_FIXED_BYTES || size > ELD_MAX_SIZE) {
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dev_err(&codec->dev, "HDMI: invalid ELD buf size %d\n", size);
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return -ERANGE;
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}
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/* set ELD buffer */
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for (i = 0; i < size; i++) {
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unsigned int val = hdac_hdmi_get_eld_data(codec, nid, i);
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/*
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* Graphics driver might be writing to ELD buffer right now.
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* Just abort. The caller will repoll after a while.
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*/
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if (!(val & AC_ELDD_ELD_VALID)) {
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dev_err(&codec->dev,
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"HDMI: invalid ELD data byte %d\n", i);
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ret = -EINVAL;
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goto error;
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}
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val &= AC_ELDD_ELD_DATA;
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/*
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* The first byte cannot be zero. This can happen on some DVI
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* connections. Some Intel chips may also need some 250ms delay
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* to return non-zero ELD data, even when the graphics driver
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* correctly writes ELD content before setting ELD_valid bit.
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*/
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if (!val && !i) {
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dev_err(&codec->dev, "HDMI: 0 ELD data\n");
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ret = -EINVAL;
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goto error;
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}
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buf[i] = val;
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}
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*eld_size = size;
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error:
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return ret;
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}
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static int hdac_hdmi_setup_stream(struct hdac_ext_device *hdac,
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hda_nid_t cvt_nid, hda_nid_t pin_nid,
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u32 stream_tag, int format)
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{
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unsigned int val;
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dev_dbg(&hdac->hdac.dev, "cvt nid %d pnid %d stream %d format 0x%x\n",
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cvt_nid, pin_nid, stream_tag, format);
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val = (stream_tag << 4);
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snd_hdac_codec_write(&hdac->hdac, cvt_nid, 0,
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AC_VERB_SET_CHANNEL_STREAMID, val);
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snd_hdac_codec_write(&hdac->hdac, cvt_nid, 0,
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AC_VERB_SET_STREAM_FORMAT, format);
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return 0;
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}
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static void
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hdac_hdmi_set_dip_index(struct hdac_ext_device *hdac, hda_nid_t pin_nid,
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int packet_index, int byte_index)
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{
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int val;
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val = (packet_index << 5) | (byte_index & 0x1f);
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snd_hdac_codec_write(&hdac->hdac, pin_nid, 0,
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AC_VERB_SET_HDMI_DIP_INDEX, val);
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}
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struct dp_audio_infoframe {
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u8 type; /* 0x84 */
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u8 len; /* 0x1b */
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u8 ver; /* 0x11 << 2 */
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u8 CC02_CT47; /* match with HDMI infoframe from this on */
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u8 SS01_SF24;
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u8 CXT04;
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u8 CA;
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u8 LFEPBL01_LSV36_DM_INH7;
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};
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static int hdac_hdmi_setup_audio_infoframe(struct hdac_ext_device *hdac,
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hda_nid_t cvt_nid, hda_nid_t pin_nid)
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{
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uint8_t buffer[HDMI_INFOFRAME_HEADER_SIZE + HDMI_AUDIO_INFOFRAME_SIZE];
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struct hdmi_audio_infoframe frame;
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struct dp_audio_infoframe dp_ai;
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struct hdac_hdmi_priv *hdmi = hdac->private_data;
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struct hdac_hdmi_pin *pin;
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u8 *dip;
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int ret;
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int i;
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const u8 *eld_buf;
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u8 conn_type;
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int channels, ca;
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list_for_each_entry(pin, &hdmi->pin_list, head) {
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if (pin->nid == pin_nid)
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break;
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}
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ca = snd_hdac_channel_allocation(&hdac->hdac, pin->eld.info.spk_alloc,
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pin->channels, pin->chmap_set, true, pin->chmap);
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channels = snd_hdac_get_active_channels(ca);
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hdmi->chmap.ops.set_channel_count(&hdac->hdac, cvt_nid, channels);
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snd_hdac_setup_channel_mapping(&hdmi->chmap, pin->nid, false, ca,
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pin->channels, pin->chmap, pin->chmap_set);
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eld_buf = pin->eld.eld_buffer;
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conn_type = drm_eld_get_conn_type(eld_buf);
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switch (conn_type) {
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case DRM_ELD_CONN_TYPE_HDMI:
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hdmi_audio_infoframe_init(&frame);
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frame.channels = channels;
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frame.channel_allocation = ca;
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ret = hdmi_audio_infoframe_pack(&frame, buffer, sizeof(buffer));
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if (ret < 0)
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return ret;
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break;
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case DRM_ELD_CONN_TYPE_DP:
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memset(&dp_ai, 0, sizeof(dp_ai));
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dp_ai.type = 0x84;
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dp_ai.len = 0x1b;
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dp_ai.ver = 0x11 << 2;
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dp_ai.CC02_CT47 = channels - 1;
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dp_ai.CA = ca;
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dip = (u8 *)&dp_ai;
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break;
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default:
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dev_err(&hdac->hdac.dev, "Invalid connection type: %d\n",
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conn_type);
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return -EIO;
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}
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/* stop infoframe transmission */
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hdac_hdmi_set_dip_index(hdac, pin_nid, 0x0, 0x0);
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snd_hdac_codec_write(&hdac->hdac, pin_nid, 0,
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AC_VERB_SET_HDMI_DIP_XMIT, AC_DIPXMIT_DISABLE);
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/* Fill infoframe. Index auto-incremented */
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hdac_hdmi_set_dip_index(hdac, pin_nid, 0x0, 0x0);
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if (conn_type == DRM_ELD_CONN_TYPE_HDMI) {
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for (i = 0; i < sizeof(buffer); i++)
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snd_hdac_codec_write(&hdac->hdac, pin_nid, 0,
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AC_VERB_SET_HDMI_DIP_DATA, buffer[i]);
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} else {
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for (i = 0; i < sizeof(dp_ai); i++)
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snd_hdac_codec_write(&hdac->hdac, pin_nid, 0,
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AC_VERB_SET_HDMI_DIP_DATA, dip[i]);
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}
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/* Start infoframe */
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hdac_hdmi_set_dip_index(hdac, pin_nid, 0x0, 0x0);
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snd_hdac_codec_write(&hdac->hdac, pin_nid, 0,
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AC_VERB_SET_HDMI_DIP_XMIT, AC_DIPXMIT_BEST);
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return 0;
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}
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static void hdac_hdmi_set_power_state(struct hdac_ext_device *edev,
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struct hdac_hdmi_dai_pin_map *dai_map, unsigned int pwr_state)
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{
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/* Power up pin widget */
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if (!snd_hdac_check_power_state(&edev->hdac, dai_map->pin->nid,
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pwr_state))
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snd_hdac_codec_write(&edev->hdac, dai_map->pin->nid, 0,
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AC_VERB_SET_POWER_STATE, pwr_state);
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/* Power up converter */
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if (!snd_hdac_check_power_state(&edev->hdac, dai_map->cvt->nid,
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pwr_state))
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snd_hdac_codec_write(&edev->hdac, dai_map->cvt->nid, 0,
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AC_VERB_SET_POWER_STATE, pwr_state);
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}
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static int hdac_hdmi_playback_prepare(struct snd_pcm_substream *substream,
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struct snd_soc_dai *dai)
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{
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struct hdac_ext_device *hdac = snd_soc_dai_get_drvdata(dai);
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struct hdac_hdmi_priv *hdmi = hdac->private_data;
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struct hdac_hdmi_dai_pin_map *dai_map;
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struct hdac_hdmi_pin *pin;
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struct hdac_ext_dma_params *dd;
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int ret;
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dai_map = &hdmi->dai_map[dai->id];
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pin = dai_map->pin;
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dd = (struct hdac_ext_dma_params *)snd_soc_dai_get_dma_data(dai, substream);
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dev_dbg(&hdac->hdac.dev, "stream tag from cpu dai %d format in cvt 0x%x\n",
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dd->stream_tag, dd->format);
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mutex_lock(&pin->lock);
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pin->channels = substream->runtime->channels;
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ret = hdac_hdmi_setup_audio_infoframe(hdac, dai_map->cvt->nid,
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dai_map->pin->nid);
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mutex_unlock(&pin->lock);
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if (ret < 0)
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return ret;
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return hdac_hdmi_setup_stream(hdac, dai_map->cvt->nid,
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dai_map->pin->nid, dd->stream_tag, dd->format);
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}
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static int hdac_hdmi_set_hw_params(struct snd_pcm_substream *substream,
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struct snd_pcm_hw_params *hparams, struct snd_soc_dai *dai)
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{
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struct hdac_ext_device *hdac = snd_soc_dai_get_drvdata(dai);
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struct hdac_hdmi_priv *hdmi = hdac->private_data;
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struct hdac_hdmi_dai_pin_map *dai_map;
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struct hdac_hdmi_pin *pin;
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struct hdac_ext_dma_params *dd;
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dai_map = &hdmi->dai_map[dai->id];
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pin = dai_map->pin;
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if (!pin)
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return -ENODEV;
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if ((!pin->eld.monitor_present) || (!pin->eld.eld_valid)) {
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dev_err(&hdac->hdac.dev, "device is not configured for this pin: %d\n",
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pin->nid);
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return -ENODEV;
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}
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dd = snd_soc_dai_get_dma_data(dai, substream);
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if (!dd) {
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dd = kzalloc(sizeof(*dd), GFP_KERNEL);
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if (!dd)
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return -ENOMEM;
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}
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dd->format = snd_hdac_calc_stream_format(params_rate(hparams),
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params_channels(hparams), params_format(hparams),
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24, 0);
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snd_soc_dai_set_dma_data(dai, substream, (void *)dd);
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return 0;
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}
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|
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static int hdac_hdmi_playback_cleanup(struct snd_pcm_substream *substream,
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struct snd_soc_dai *dai)
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{
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struct hdac_ext_device *edev = snd_soc_dai_get_drvdata(dai);
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struct hdac_ext_dma_params *dd;
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struct hdac_hdmi_priv *hdmi = edev->private_data;
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struct hdac_hdmi_dai_pin_map *dai_map;
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dai_map = &hdmi->dai_map[dai->id];
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dd = (struct hdac_ext_dma_params *)snd_soc_dai_get_dma_data(dai, substream);
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if (dd) {
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snd_soc_dai_set_dma_data(dai, substream, NULL);
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kfree(dd);
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}
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return 0;
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|
}
|
|
|
|
static void hdac_hdmi_enable_cvt(struct hdac_ext_device *edev,
|
|
struct hdac_hdmi_dai_pin_map *dai_map)
|
|
{
|
|
/* Enable transmission */
|
|
snd_hdac_codec_write(&edev->hdac, dai_map->cvt->nid, 0,
|
|
AC_VERB_SET_DIGI_CONVERT_1, 1);
|
|
|
|
/* Category Code (CC) to zero */
|
|
snd_hdac_codec_write(&edev->hdac, dai_map->cvt->nid, 0,
|
|
AC_VERB_SET_DIGI_CONVERT_2, 0);
|
|
}
|
|
|
|
static int hdac_hdmi_enable_pin(struct hdac_ext_device *hdac,
|
|
struct hdac_hdmi_dai_pin_map *dai_map)
|
|
{
|
|
int mux_idx;
|
|
struct hdac_hdmi_pin *pin = dai_map->pin;
|
|
|
|
for (mux_idx = 0; mux_idx < pin->num_mux_nids; mux_idx++) {
|
|
if (pin->mux_nids[mux_idx] == dai_map->cvt->nid) {
|
|
snd_hdac_codec_write(&hdac->hdac, pin->nid, 0,
|
|
AC_VERB_SET_CONNECT_SEL, mux_idx);
|
|
break;
|
|
}
|
|
}
|
|
|
|
if (mux_idx == pin->num_mux_nids)
|
|
return -EIO;
|
|
|
|
/* Enable out path for this pin widget */
|
|
snd_hdac_codec_write(&hdac->hdac, pin->nid, 0,
|
|
AC_VERB_SET_PIN_WIDGET_CONTROL, PIN_OUT);
|
|
|
|
hdac_hdmi_set_power_state(hdac, dai_map, AC_PWRST_D0);
|
|
|
|
snd_hdac_codec_write(&hdac->hdac, pin->nid, 0,
|
|
AC_VERB_SET_AMP_GAIN_MUTE, AMP_OUT_UNMUTE);
|
|
|
|
return 0;
|
|
}
|
|
|
|
static int hdac_hdmi_query_pin_connlist(struct hdac_ext_device *hdac,
|
|
struct hdac_hdmi_pin *pin)
|
|
{
|
|
if (!(get_wcaps(&hdac->hdac, pin->nid) & AC_WCAP_CONN_LIST)) {
|
|
dev_warn(&hdac->hdac.dev,
|
|
"HDMI: pin %d wcaps %#x does not support connection list\n",
|
|
pin->nid, get_wcaps(&hdac->hdac, pin->nid));
|
|
return -EINVAL;
|
|
}
|
|
|
|
pin->num_mux_nids = snd_hdac_get_connections(&hdac->hdac, pin->nid,
|
|
pin->mux_nids, HDA_MAX_CONNECTIONS);
|
|
if (pin->num_mux_nids == 0)
|
|
dev_warn(&hdac->hdac.dev, "No connections found for pin: %d\n",
|
|
pin->nid);
|
|
|
|
dev_dbg(&hdac->hdac.dev, "num_mux_nids %d for pin: %d\n",
|
|
pin->num_mux_nids, pin->nid);
|
|
|
|
return pin->num_mux_nids;
|
|
}
|
|
|
|
/*
|
|
* Query pcm list and return pin widget to which stream is routed.
|
|
*
|
|
* Also query connection list of the pin, to validate the cvt to pin map.
|
|
*
|
|
* Same stream rendering to multiple pins simultaneously can be done
|
|
* possibly, but not supported for now in driver. So return the first pin
|
|
* connected.
|
|
*/
|
|
static struct hdac_hdmi_pin *hdac_hdmi_get_pin_from_cvt(
|
|
struct hdac_ext_device *edev,
|
|
struct hdac_hdmi_priv *hdmi,
|
|
struct hdac_hdmi_cvt *cvt)
|
|
{
|
|
struct hdac_hdmi_pcm *pcm;
|
|
struct hdac_hdmi_pin *pin = NULL;
|
|
int ret, i;
|
|
|
|
list_for_each_entry(pcm, &hdmi->pcm_list, head) {
|
|
if (pcm->cvt == cvt) {
|
|
pin = pcm->pin;
|
|
break;
|
|
}
|
|
}
|
|
|
|
if (pin) {
|
|
ret = hdac_hdmi_query_pin_connlist(edev, pin);
|
|
if (ret < 0)
|
|
return NULL;
|
|
|
|
for (i = 0; i < pin->num_mux_nids; i++) {
|
|
if (pin->mux_nids[i] == cvt->nid)
|
|
return pin;
|
|
}
|
|
}
|
|
|
|
return NULL;
|
|
}
|
|
|
|
/*
|
|
* This tries to get a valid pin and set the HW constraints based on the
|
|
* ELD. Even if a valid pin is not found return success so that device open
|
|
* doesn't fail.
|
|
*/
|
|
static int hdac_hdmi_pcm_open(struct snd_pcm_substream *substream,
|
|
struct snd_soc_dai *dai)
|
|
{
|
|
struct hdac_ext_device *hdac = snd_soc_dai_get_drvdata(dai);
|
|
struct hdac_hdmi_priv *hdmi = hdac->private_data;
|
|
struct hdac_hdmi_dai_pin_map *dai_map;
|
|
struct hdac_hdmi_cvt *cvt;
|
|
struct hdac_hdmi_pin *pin;
|
|
int ret;
|
|
|
|
dai_map = &hdmi->dai_map[dai->id];
|
|
|
|
cvt = dai_map->cvt;
|
|
pin = hdac_hdmi_get_pin_from_cvt(hdac, hdmi, cvt);
|
|
|
|
/*
|
|
* To make PA and other userland happy.
|
|
* userland scans devices so returning error does not help.
|
|
*/
|
|
if (!pin)
|
|
return 0;
|
|
|
|
if ((!pin->eld.monitor_present) ||
|
|
(!pin->eld.eld_valid)) {
|
|
|
|
dev_warn(&hdac->hdac.dev,
|
|
"Failed: montior present? %d ELD valid?: %d for pin: %d\n",
|
|
pin->eld.monitor_present, pin->eld.eld_valid, pin->nid);
|
|
|
|
return 0;
|
|
}
|
|
|
|
dai_map->pin = pin;
|
|
|
|
hdac_hdmi_enable_cvt(hdac, dai_map);
|
|
ret = hdac_hdmi_enable_pin(hdac, dai_map);
|
|
if (ret < 0)
|
|
return ret;
|
|
|
|
ret = hdac_hdmi_eld_limit_formats(substream->runtime,
|
|
pin->eld.eld_buffer);
|
|
if (ret < 0)
|
|
return ret;
|
|
|
|
return snd_pcm_hw_constraint_eld(substream->runtime,
|
|
pin->eld.eld_buffer);
|
|
}
|
|
|
|
static int hdac_hdmi_trigger(struct snd_pcm_substream *substream, int cmd,
|
|
struct snd_soc_dai *dai)
|
|
{
|
|
struct hdac_hdmi_dai_pin_map *dai_map;
|
|
struct hdac_ext_device *hdac = snd_soc_dai_get_drvdata(dai);
|
|
struct hdac_hdmi_priv *hdmi = hdac->private_data;
|
|
int ret;
|
|
|
|
dai_map = &hdmi->dai_map[dai->id];
|
|
if (cmd == SNDRV_PCM_TRIGGER_RESUME) {
|
|
ret = hdac_hdmi_enable_pin(hdac, dai_map);
|
|
if (ret < 0)
|
|
return ret;
|
|
|
|
return hdac_hdmi_playback_prepare(substream, dai);
|
|
}
|
|
|
|
return 0;
|
|
}
|
|
|
|
static void hdac_hdmi_pcm_close(struct snd_pcm_substream *substream,
|
|
struct snd_soc_dai *dai)
|
|
{
|
|
struct hdac_ext_device *hdac = snd_soc_dai_get_drvdata(dai);
|
|
struct hdac_hdmi_priv *hdmi = hdac->private_data;
|
|
struct hdac_hdmi_dai_pin_map *dai_map;
|
|
|
|
dai_map = &hdmi->dai_map[dai->id];
|
|
|
|
if (dai_map->pin) {
|
|
snd_hdac_codec_write(&hdac->hdac, dai_map->cvt->nid, 0,
|
|
AC_VERB_SET_CHANNEL_STREAMID, 0);
|
|
snd_hdac_codec_write(&hdac->hdac, dai_map->cvt->nid, 0,
|
|
AC_VERB_SET_STREAM_FORMAT, 0);
|
|
|
|
hdac_hdmi_set_power_state(hdac, dai_map, AC_PWRST_D3);
|
|
|
|
snd_hdac_codec_write(&hdac->hdac, dai_map->pin->nid, 0,
|
|
AC_VERB_SET_AMP_GAIN_MUTE, AMP_OUT_MUTE);
|
|
|
|
mutex_lock(&dai_map->pin->lock);
|
|
dai_map->pin->chmap_set = false;
|
|
memset(dai_map->pin->chmap, 0, sizeof(dai_map->pin->chmap));
|
|
dai_map->pin->channels = 0;
|
|
mutex_unlock(&dai_map->pin->lock);
|
|
|
|
dai_map->pin = NULL;
|
|
}
|
|
}
|
|
|
|
static int
|
|
hdac_hdmi_query_cvt_params(struct hdac_device *hdac, struct hdac_hdmi_cvt *cvt)
|
|
{
|
|
unsigned int chans;
|
|
struct hdac_ext_device *edev = to_ehdac_device(hdac);
|
|
struct hdac_hdmi_priv *hdmi = edev->private_data;
|
|
int err;
|
|
|
|
chans = get_wcaps(hdac, cvt->nid);
|
|
chans = get_wcaps_channels(chans);
|
|
|
|
cvt->params.channels_min = 2;
|
|
|
|
cvt->params.channels_max = chans;
|
|
if (chans > hdmi->chmap.channels_max)
|
|
hdmi->chmap.channels_max = chans;
|
|
|
|
err = snd_hdac_query_supported_pcm(hdac, cvt->nid,
|
|
&cvt->params.rates,
|
|
&cvt->params.formats,
|
|
&cvt->params.maxbps);
|
|
if (err < 0)
|
|
dev_err(&hdac->dev,
|
|
"Failed to query pcm params for nid %d: %d\n",
|
|
cvt->nid, err);
|
|
|
|
return err;
|
|
}
|
|
|
|
static int hdac_hdmi_fill_widget_info(struct device *dev,
|
|
struct snd_soc_dapm_widget *w,
|
|
enum snd_soc_dapm_type id, void *priv,
|
|
const char *wname, const char *stream,
|
|
struct snd_kcontrol_new *wc, int numkc)
|
|
{
|
|
w->id = id;
|
|
w->name = devm_kstrdup(dev, wname, GFP_KERNEL);
|
|
if (!w->name)
|
|
return -ENOMEM;
|
|
|
|
w->sname = stream;
|
|
w->reg = SND_SOC_NOPM;
|
|
w->shift = 0;
|
|
w->kcontrol_news = wc;
|
|
w->num_kcontrols = numkc;
|
|
w->priv = priv;
|
|
|
|
return 0;
|
|
}
|
|
|
|
static void hdac_hdmi_fill_route(struct snd_soc_dapm_route *route,
|
|
const char *sink, const char *control, const char *src,
|
|
int (*handler)(struct snd_soc_dapm_widget *src,
|
|
struct snd_soc_dapm_widget *sink))
|
|
{
|
|
route->sink = sink;
|
|
route->source = src;
|
|
route->control = control;
|
|
route->connected = handler;
|
|
}
|
|
|
|
static struct hdac_hdmi_pcm *hdac_hdmi_get_pcm(struct hdac_ext_device *edev,
|
|
struct hdac_hdmi_pin *pin)
|
|
{
|
|
struct hdac_hdmi_priv *hdmi = edev->private_data;
|
|
struct hdac_hdmi_pcm *pcm = NULL;
|
|
|
|
list_for_each_entry(pcm, &hdmi->pcm_list, head) {
|
|
if (pcm->pin == pin)
|
|
return pcm;
|
|
}
|
|
|
|
return NULL;
|
|
}
|
|
|
|
/*
|
|
* Based on user selection, map the PINs with the PCMs.
|
|
*/
|
|
static int hdac_hdmi_set_pin_mux(struct snd_kcontrol *kcontrol,
|
|
struct snd_ctl_elem_value *ucontrol)
|
|
{
|
|
int ret;
|
|
struct soc_enum *e = (struct soc_enum *)kcontrol->private_value;
|
|
struct snd_soc_dapm_widget *w = snd_soc_dapm_kcontrol_widget(kcontrol);
|
|
struct snd_soc_dapm_context *dapm = w->dapm;
|
|
struct hdac_hdmi_pin *pin = w->priv;
|
|
struct hdac_ext_device *edev = to_hda_ext_device(dapm->dev);
|
|
struct hdac_hdmi_priv *hdmi = edev->private_data;
|
|
struct hdac_hdmi_pcm *pcm = NULL;
|
|
const char *cvt_name = e->texts[ucontrol->value.enumerated.item[0]];
|
|
|
|
ret = snd_soc_dapm_put_enum_double(kcontrol, ucontrol);
|
|
if (ret < 0)
|
|
return ret;
|
|
|
|
mutex_lock(&hdmi->pin_mutex);
|
|
list_for_each_entry(pcm, &hdmi->pcm_list, head) {
|
|
if (pcm->pin == pin)
|
|
pcm->pin = NULL;
|
|
|
|
/*
|
|
* Jack status is not reported during device probe as the
|
|
* PCMs are not registered by then. So report it here.
|
|
*/
|
|
if (!strcmp(cvt_name, pcm->cvt->name) && !pcm->pin) {
|
|
pcm->pin = pin;
|
|
if (pin->eld.monitor_present && pin->eld.eld_valid) {
|
|
dev_dbg(&edev->hdac.dev,
|
|
"jack report for pcm=%d\n",
|
|
pcm->pcm_id);
|
|
|
|
snd_jack_report(pcm->jack, SND_JACK_AVOUT);
|
|
}
|
|
mutex_unlock(&hdmi->pin_mutex);
|
|
return ret;
|
|
}
|
|
}
|
|
mutex_unlock(&hdmi->pin_mutex);
|
|
|
|
return ret;
|
|
}
|
|
|
|
/*
|
|
* Ideally the Mux inputs should be based on the num_muxs enumerated, but
|
|
* the display driver seem to be programming the connection list for the pin
|
|
* widget runtime.
|
|
*
|
|
* So programming all the possible inputs for the mux, the user has to take
|
|
* care of selecting the right one and leaving all other inputs selected to
|
|
* "NONE"
|
|
*/
|
|
static int hdac_hdmi_create_pin_muxs(struct hdac_ext_device *edev,
|
|
struct hdac_hdmi_pin *pin,
|
|
struct snd_soc_dapm_widget *widget,
|
|
const char *widget_name)
|
|
{
|
|
struct hdac_hdmi_priv *hdmi = edev->private_data;
|
|
struct snd_kcontrol_new *kc;
|
|
struct hdac_hdmi_cvt *cvt;
|
|
struct soc_enum *se;
|
|
char kc_name[NAME_SIZE];
|
|
char mux_items[NAME_SIZE];
|
|
/* To hold inputs to the Pin mux */
|
|
char *items[HDA_MAX_CONNECTIONS];
|
|
int i = 0;
|
|
int num_items = hdmi->num_cvt + 1;
|
|
|
|
kc = devm_kzalloc(&edev->hdac.dev, sizeof(*kc), GFP_KERNEL);
|
|
if (!kc)
|
|
return -ENOMEM;
|
|
|
|
se = devm_kzalloc(&edev->hdac.dev, sizeof(*se), GFP_KERNEL);
|
|
if (!se)
|
|
return -ENOMEM;
|
|
|
|
sprintf(kc_name, "Pin %d Input", pin->nid);
|
|
kc->name = devm_kstrdup(&edev->hdac.dev, kc_name, GFP_KERNEL);
|
|
if (!kc->name)
|
|
return -ENOMEM;
|
|
|
|
kc->private_value = (long)se;
|
|
kc->iface = SNDRV_CTL_ELEM_IFACE_MIXER;
|
|
kc->access = 0;
|
|
kc->info = snd_soc_info_enum_double;
|
|
kc->put = hdac_hdmi_set_pin_mux;
|
|
kc->get = snd_soc_dapm_get_enum_double;
|
|
|
|
se->reg = SND_SOC_NOPM;
|
|
|
|
/* enum texts: ["NONE", "cvt #", "cvt #", ...] */
|
|
se->items = num_items;
|
|
se->mask = roundup_pow_of_two(se->items) - 1;
|
|
|
|
sprintf(mux_items, "NONE");
|
|
items[i] = devm_kstrdup(&edev->hdac.dev, mux_items, GFP_KERNEL);
|
|
if (!items[i])
|
|
return -ENOMEM;
|
|
|
|
list_for_each_entry(cvt, &hdmi->cvt_list, head) {
|
|
i++;
|
|
sprintf(mux_items, "cvt %d", cvt->nid);
|
|
items[i] = devm_kstrdup(&edev->hdac.dev, mux_items, GFP_KERNEL);
|
|
if (!items[i])
|
|
return -ENOMEM;
|
|
}
|
|
|
|
se->texts = devm_kmemdup(&edev->hdac.dev, items,
|
|
(num_items * sizeof(char *)), GFP_KERNEL);
|
|
if (!se->texts)
|
|
return -ENOMEM;
|
|
|
|
return hdac_hdmi_fill_widget_info(&edev->hdac.dev, widget,
|
|
snd_soc_dapm_mux, pin, widget_name, NULL, kc, 1);
|
|
}
|
|
|
|
/* Add cvt <- input <- mux route map */
|
|
static void hdac_hdmi_add_pinmux_cvt_route(struct hdac_ext_device *edev,
|
|
struct snd_soc_dapm_widget *widgets,
|
|
struct snd_soc_dapm_route *route, int rindex)
|
|
{
|
|
struct hdac_hdmi_priv *hdmi = edev->private_data;
|
|
const struct snd_kcontrol_new *kc;
|
|
struct soc_enum *se;
|
|
int mux_index = hdmi->num_cvt + hdmi->num_pin;
|
|
int i, j;
|
|
|
|
for (i = 0; i < hdmi->num_pin; i++) {
|
|
kc = widgets[mux_index].kcontrol_news;
|
|
se = (struct soc_enum *)kc->private_value;
|
|
for (j = 0; j < hdmi->num_cvt; j++) {
|
|
hdac_hdmi_fill_route(&route[rindex],
|
|
widgets[mux_index].name,
|
|
se->texts[j + 1],
|
|
widgets[j].name, NULL);
|
|
|
|
rindex++;
|
|
}
|
|
|
|
mux_index++;
|
|
}
|
|
}
|
|
|
|
/*
|
|
* Widgets are added in the below sequence
|
|
* Converter widgets for num converters enumerated
|
|
* Pin widgets for num pins enumerated
|
|
* Pin mux widgets to represent connenction list of pin widget
|
|
*
|
|
* Total widgets elements = num_cvt + num_pin + num_pin;
|
|
*
|
|
* Routes are added as below:
|
|
* pin mux -> pin (based on num_pins)
|
|
* cvt -> "Input sel control" -> pin_mux
|
|
*
|
|
* Total route elements:
|
|
* num_pins + (pin_muxes * num_cvt)
|
|
*/
|
|
static int create_fill_widget_route_map(struct snd_soc_dapm_context *dapm)
|
|
{
|
|
struct snd_soc_dapm_widget *widgets;
|
|
struct snd_soc_dapm_route *route;
|
|
struct hdac_ext_device *edev = to_hda_ext_device(dapm->dev);
|
|
struct hdac_hdmi_priv *hdmi = edev->private_data;
|
|
struct snd_soc_dai_driver *dai_drv = dapm->component->dai_drv;
|
|
char widget_name[NAME_SIZE];
|
|
struct hdac_hdmi_cvt *cvt;
|
|
struct hdac_hdmi_pin *pin;
|
|
int ret, i = 0, num_routes = 0;
|
|
|
|
if (list_empty(&hdmi->cvt_list) || list_empty(&hdmi->pin_list))
|
|
return -EINVAL;
|
|
|
|
widgets = devm_kzalloc(dapm->dev,
|
|
(sizeof(*widgets) * ((2 * hdmi->num_pin) + hdmi->num_cvt)),
|
|
GFP_KERNEL);
|
|
|
|
if (!widgets)
|
|
return -ENOMEM;
|
|
|
|
/* DAPM widgets to represent each converter widget */
|
|
list_for_each_entry(cvt, &hdmi->cvt_list, head) {
|
|
sprintf(widget_name, "Converter %d", cvt->nid);
|
|
ret = hdac_hdmi_fill_widget_info(dapm->dev, &widgets[i],
|
|
snd_soc_dapm_aif_in, &cvt->nid,
|
|
widget_name, dai_drv[i].playback.stream_name, NULL, 0);
|
|
if (ret < 0)
|
|
return ret;
|
|
i++;
|
|
}
|
|
|
|
list_for_each_entry(pin, &hdmi->pin_list, head) {
|
|
sprintf(widget_name, "hif%d Output", pin->nid);
|
|
ret = hdac_hdmi_fill_widget_info(dapm->dev, &widgets[i],
|
|
snd_soc_dapm_output, &pin->nid,
|
|
widget_name, NULL, NULL, 0);
|
|
if (ret < 0)
|
|
return ret;
|
|
i++;
|
|
}
|
|
|
|
/* DAPM widgets to represent the connection list to pin widget */
|
|
list_for_each_entry(pin, &hdmi->pin_list, head) {
|
|
sprintf(widget_name, "Pin %d Mux", pin->nid);
|
|
ret = hdac_hdmi_create_pin_muxs(edev, pin, &widgets[i],
|
|
widget_name);
|
|
if (ret < 0)
|
|
return ret;
|
|
i++;
|
|
|
|
/* For cvt to pin_mux mapping */
|
|
num_routes += hdmi->num_cvt;
|
|
|
|
/* For pin_mux to pin mapping */
|
|
num_routes++;
|
|
}
|
|
|
|
route = devm_kzalloc(dapm->dev, (sizeof(*route) * num_routes),
|
|
GFP_KERNEL);
|
|
if (!route)
|
|
return -ENOMEM;
|
|
|
|
i = 0;
|
|
/* Add pin <- NULL <- mux route map */
|
|
list_for_each_entry(pin, &hdmi->pin_list, head) {
|
|
int sink_index = i + hdmi->num_cvt;
|
|
int src_index = sink_index + hdmi->num_pin;
|
|
|
|
hdac_hdmi_fill_route(&route[i],
|
|
widgets[sink_index].name, NULL,
|
|
widgets[src_index].name, NULL);
|
|
i++;
|
|
|
|
}
|
|
|
|
hdac_hdmi_add_pinmux_cvt_route(edev, widgets, route, i);
|
|
|
|
snd_soc_dapm_new_controls(dapm, widgets,
|
|
((2 * hdmi->num_pin) + hdmi->num_cvt));
|
|
|
|
snd_soc_dapm_add_routes(dapm, route, num_routes);
|
|
snd_soc_dapm_new_widgets(dapm->card);
|
|
|
|
return 0;
|
|
|
|
}
|
|
|
|
static int hdac_hdmi_init_dai_map(struct hdac_ext_device *edev)
|
|
{
|
|
struct hdac_hdmi_priv *hdmi = edev->private_data;
|
|
struct hdac_hdmi_dai_pin_map *dai_map;
|
|
struct hdac_hdmi_cvt *cvt;
|
|
int dai_id = 0;
|
|
|
|
if (list_empty(&hdmi->cvt_list))
|
|
return -EINVAL;
|
|
|
|
list_for_each_entry(cvt, &hdmi->cvt_list, head) {
|
|
dai_map = &hdmi->dai_map[dai_id];
|
|
dai_map->dai_id = dai_id;
|
|
dai_map->cvt = cvt;
|
|
|
|
dai_id++;
|
|
|
|
if (dai_id == HDA_MAX_CVTS) {
|
|
dev_warn(&edev->hdac.dev,
|
|
"Max dais supported: %d\n", dai_id);
|
|
break;
|
|
}
|
|
}
|
|
|
|
return 0;
|
|
}
|
|
|
|
static int hdac_hdmi_add_cvt(struct hdac_ext_device *edev, hda_nid_t nid)
|
|
{
|
|
struct hdac_hdmi_priv *hdmi = edev->private_data;
|
|
struct hdac_hdmi_cvt *cvt;
|
|
char name[NAME_SIZE];
|
|
|
|
cvt = kzalloc(sizeof(*cvt), GFP_KERNEL);
|
|
if (!cvt)
|
|
return -ENOMEM;
|
|
|
|
cvt->nid = nid;
|
|
sprintf(name, "cvt %d", cvt->nid);
|
|
cvt->name = kstrdup(name, GFP_KERNEL);
|
|
|
|
list_add_tail(&cvt->head, &hdmi->cvt_list);
|
|
hdmi->num_cvt++;
|
|
|
|
return hdac_hdmi_query_cvt_params(&edev->hdac, cvt);
|
|
}
|
|
|
|
static void hdac_hdmi_parse_eld(struct hdac_ext_device *edev,
|
|
struct hdac_hdmi_pin *pin)
|
|
{
|
|
pin->eld.info.spk_alloc = pin->eld.eld_buffer[DRM_ELD_SPEAKER];
|
|
}
|
|
|
|
static void hdac_hdmi_present_sense(struct hdac_hdmi_pin *pin, int repoll)
|
|
{
|
|
struct hdac_ext_device *edev = pin->edev;
|
|
struct hdac_hdmi_priv *hdmi = edev->private_data;
|
|
struct hdac_hdmi_pcm *pcm;
|
|
int val;
|
|
|
|
pin->repoll_count = repoll;
|
|
|
|
pm_runtime_get_sync(&edev->hdac.dev);
|
|
val = snd_hdac_codec_read(&edev->hdac, pin->nid, 0,
|
|
AC_VERB_GET_PIN_SENSE, 0);
|
|
|
|
dev_dbg(&edev->hdac.dev, "Pin sense val %x for pin: %d\n",
|
|
val, pin->nid);
|
|
|
|
|
|
mutex_lock(&hdmi->pin_mutex);
|
|
pin->eld.monitor_present = !!(val & AC_PINSENSE_PRESENCE);
|
|
pin->eld.eld_valid = !!(val & AC_PINSENSE_ELDV);
|
|
|
|
pcm = hdac_hdmi_get_pcm(edev, pin);
|
|
|
|
if (!pin->eld.monitor_present || !pin->eld.eld_valid) {
|
|
|
|
dev_dbg(&edev->hdac.dev, "%s: disconnect for pin %d\n",
|
|
__func__, pin->nid);
|
|
|
|
/*
|
|
* PCMs are not registered during device probe, so don't
|
|
* report jack here. It will be done in usermode mux
|
|
* control select.
|
|
*/
|
|
if (pcm) {
|
|
dev_dbg(&edev->hdac.dev,
|
|
"jack report for pcm=%d\n", pcm->pcm_id);
|
|
|
|
snd_jack_report(pcm->jack, 0);
|
|
}
|
|
|
|
mutex_unlock(&hdmi->pin_mutex);
|
|
goto put_hdac_device;
|
|
}
|
|
|
|
if (pin->eld.monitor_present && pin->eld.eld_valid) {
|
|
/* TODO: use i915 component for reading ELD later */
|
|
if (hdac_hdmi_get_eld(&edev->hdac, pin->nid,
|
|
pin->eld.eld_buffer,
|
|
&pin->eld.eld_size) == 0) {
|
|
|
|
if (pcm) {
|
|
dev_dbg(&edev->hdac.dev,
|
|
"jack report for pcm=%d\n",
|
|
pcm->pcm_id);
|
|
|
|
snd_jack_report(pcm->jack, SND_JACK_AVOUT);
|
|
}
|
|
hdac_hdmi_parse_eld(edev, pin);
|
|
|
|
print_hex_dump_bytes("ELD: ", DUMP_PREFIX_OFFSET,
|
|
pin->eld.eld_buffer, pin->eld.eld_size);
|
|
} else {
|
|
pin->eld.monitor_present = false;
|
|
pin->eld.eld_valid = false;
|
|
|
|
if (pcm) {
|
|
dev_dbg(&edev->hdac.dev,
|
|
"jack report for pcm=%d\n",
|
|
pcm->pcm_id);
|
|
|
|
snd_jack_report(pcm->jack, 0);
|
|
}
|
|
}
|
|
}
|
|
|
|
mutex_unlock(&hdmi->pin_mutex);
|
|
|
|
/*
|
|
* Sometimes the pin_sense may present invalid monitor
|
|
* present and eld_valid. If ELD data is not valid, loop few
|
|
* more times to get correct pin sense and valid ELD.
|
|
*/
|
|
if ((!pin->eld.monitor_present || !pin->eld.eld_valid) && repoll)
|
|
schedule_delayed_work(&pin->work, msecs_to_jiffies(300));
|
|
|
|
put_hdac_device:
|
|
pm_runtime_put_sync(&edev->hdac.dev);
|
|
}
|
|
|
|
static void hdac_hdmi_repoll_eld(struct work_struct *work)
|
|
{
|
|
struct hdac_hdmi_pin *pin =
|
|
container_of(to_delayed_work(work), struct hdac_hdmi_pin, work);
|
|
|
|
/* picked from legacy HDA driver */
|
|
if (pin->repoll_count++ > 6)
|
|
pin->repoll_count = 0;
|
|
|
|
hdac_hdmi_present_sense(pin, pin->repoll_count);
|
|
}
|
|
|
|
static int hdac_hdmi_add_pin(struct hdac_ext_device *edev, hda_nid_t nid)
|
|
{
|
|
struct hdac_hdmi_priv *hdmi = edev->private_data;
|
|
struct hdac_hdmi_pin *pin;
|
|
|
|
pin = kzalloc(sizeof(*pin), GFP_KERNEL);
|
|
if (!pin)
|
|
return -ENOMEM;
|
|
|
|
pin->nid = nid;
|
|
|
|
list_add_tail(&pin->head, &hdmi->pin_list);
|
|
hdmi->num_pin++;
|
|
|
|
pin->edev = edev;
|
|
mutex_init(&pin->lock);
|
|
INIT_DELAYED_WORK(&pin->work, hdac_hdmi_repoll_eld);
|
|
|
|
return 0;
|
|
}
|
|
|
|
#define INTEL_VENDOR_NID 0x08
|
|
#define INTEL_GET_VENDOR_VERB 0xf81
|
|
#define INTEL_SET_VENDOR_VERB 0x781
|
|
#define INTEL_EN_DP12 0x02 /* enable DP 1.2 features */
|
|
#define INTEL_EN_ALL_PIN_CVTS 0x01 /* enable 2nd & 3rd pins and convertors */
|
|
|
|
static void hdac_hdmi_skl_enable_all_pins(struct hdac_device *hdac)
|
|
{
|
|
unsigned int vendor_param;
|
|
|
|
vendor_param = snd_hdac_codec_read(hdac, INTEL_VENDOR_NID, 0,
|
|
INTEL_GET_VENDOR_VERB, 0);
|
|
if (vendor_param == -1 || vendor_param & INTEL_EN_ALL_PIN_CVTS)
|
|
return;
|
|
|
|
vendor_param |= INTEL_EN_ALL_PIN_CVTS;
|
|
vendor_param = snd_hdac_codec_read(hdac, INTEL_VENDOR_NID, 0,
|
|
INTEL_SET_VENDOR_VERB, vendor_param);
|
|
if (vendor_param == -1)
|
|
return;
|
|
}
|
|
|
|
static void hdac_hdmi_skl_enable_dp12(struct hdac_device *hdac)
|
|
{
|
|
unsigned int vendor_param;
|
|
|
|
vendor_param = snd_hdac_codec_read(hdac, INTEL_VENDOR_NID, 0,
|
|
INTEL_GET_VENDOR_VERB, 0);
|
|
if (vendor_param == -1 || vendor_param & INTEL_EN_DP12)
|
|
return;
|
|
|
|
/* enable DP1.2 mode */
|
|
vendor_param |= INTEL_EN_DP12;
|
|
vendor_param = snd_hdac_codec_read(hdac, INTEL_VENDOR_NID, 0,
|
|
INTEL_SET_VENDOR_VERB, vendor_param);
|
|
if (vendor_param == -1)
|
|
return;
|
|
|
|
}
|
|
|
|
static struct snd_soc_dai_ops hdmi_dai_ops = {
|
|
.startup = hdac_hdmi_pcm_open,
|
|
.shutdown = hdac_hdmi_pcm_close,
|
|
.hw_params = hdac_hdmi_set_hw_params,
|
|
.prepare = hdac_hdmi_playback_prepare,
|
|
.trigger = hdac_hdmi_trigger,
|
|
.hw_free = hdac_hdmi_playback_cleanup,
|
|
};
|
|
|
|
/*
|
|
* Each converter can support a stream independently. So a dai is created
|
|
* based on the number of converter queried.
|
|
*/
|
|
static int hdac_hdmi_create_dais(struct hdac_device *hdac,
|
|
struct snd_soc_dai_driver **dais,
|
|
struct hdac_hdmi_priv *hdmi, int num_dais)
|
|
{
|
|
struct snd_soc_dai_driver *hdmi_dais;
|
|
struct hdac_hdmi_cvt *cvt;
|
|
char name[NAME_SIZE], dai_name[NAME_SIZE];
|
|
int i = 0;
|
|
u32 rates, bps;
|
|
unsigned int rate_max = 384000, rate_min = 8000;
|
|
u64 formats;
|
|
int ret;
|
|
|
|
hdmi_dais = devm_kzalloc(&hdac->dev,
|
|
(sizeof(*hdmi_dais) * num_dais),
|
|
GFP_KERNEL);
|
|
if (!hdmi_dais)
|
|
return -ENOMEM;
|
|
|
|
list_for_each_entry(cvt, &hdmi->cvt_list, head) {
|
|
ret = snd_hdac_query_supported_pcm(hdac, cvt->nid,
|
|
&rates, &formats, &bps);
|
|
if (ret)
|
|
return ret;
|
|
|
|
sprintf(dai_name, "intel-hdmi-hifi%d", i+1);
|
|
hdmi_dais[i].name = devm_kstrdup(&hdac->dev,
|
|
dai_name, GFP_KERNEL);
|
|
|
|
if (!hdmi_dais[i].name)
|
|
return -ENOMEM;
|
|
|
|
snprintf(name, sizeof(name), "hifi%d", i+1);
|
|
hdmi_dais[i].playback.stream_name =
|
|
devm_kstrdup(&hdac->dev, name, GFP_KERNEL);
|
|
if (!hdmi_dais[i].playback.stream_name)
|
|
return -ENOMEM;
|
|
|
|
/*
|
|
* Set caps based on capability queried from the converter.
|
|
* It will be constrained runtime based on ELD queried.
|
|
*/
|
|
hdmi_dais[i].playback.formats = formats;
|
|
hdmi_dais[i].playback.rates = rates;
|
|
hdmi_dais[i].playback.rate_max = rate_max;
|
|
hdmi_dais[i].playback.rate_min = rate_min;
|
|
hdmi_dais[i].playback.channels_min = 2;
|
|
hdmi_dais[i].playback.channels_max = 2;
|
|
hdmi_dais[i].ops = &hdmi_dai_ops;
|
|
|
|
i++;
|
|
}
|
|
|
|
*dais = hdmi_dais;
|
|
|
|
return 0;
|
|
}
|
|
|
|
/*
|
|
* Parse all nodes and store the cvt/pin nids in array
|
|
* Add one time initialization for pin and cvt widgets
|
|
*/
|
|
static int hdac_hdmi_parse_and_map_nid(struct hdac_ext_device *edev,
|
|
struct snd_soc_dai_driver **dais, int *num_dais)
|
|
{
|
|
hda_nid_t nid;
|
|
int i, num_nodes;
|
|
struct hdac_device *hdac = &edev->hdac;
|
|
struct hdac_hdmi_priv *hdmi = edev->private_data;
|
|
int ret;
|
|
|
|
hdac_hdmi_skl_enable_all_pins(hdac);
|
|
hdac_hdmi_skl_enable_dp12(hdac);
|
|
|
|
num_nodes = snd_hdac_get_sub_nodes(hdac, hdac->afg, &nid);
|
|
if (!nid || num_nodes <= 0) {
|
|
dev_warn(&hdac->dev, "HDMI: failed to get afg sub nodes\n");
|
|
return -EINVAL;
|
|
}
|
|
|
|
hdac->num_nodes = num_nodes;
|
|
hdac->start_nid = nid;
|
|
|
|
for (i = 0; i < hdac->num_nodes; i++, nid++) {
|
|
unsigned int caps;
|
|
unsigned int type;
|
|
|
|
caps = get_wcaps(hdac, nid);
|
|
type = get_wcaps_type(caps);
|
|
|
|
if (!(caps & AC_WCAP_DIGITAL))
|
|
continue;
|
|
|
|
switch (type) {
|
|
|
|
case AC_WID_AUD_OUT:
|
|
ret = hdac_hdmi_add_cvt(edev, nid);
|
|
if (ret < 0)
|
|
return ret;
|
|
break;
|
|
|
|
case AC_WID_PIN:
|
|
ret = hdac_hdmi_add_pin(edev, nid);
|
|
if (ret < 0)
|
|
return ret;
|
|
break;
|
|
}
|
|
}
|
|
|
|
hdac->end_nid = nid;
|
|
|
|
if (!hdmi->num_pin || !hdmi->num_cvt)
|
|
return -EIO;
|
|
|
|
ret = hdac_hdmi_create_dais(hdac, dais, hdmi, hdmi->num_cvt);
|
|
if (ret) {
|
|
dev_err(&hdac->dev, "Failed to create dais with err: %d\n",
|
|
ret);
|
|
return ret;
|
|
}
|
|
|
|
*num_dais = hdmi->num_cvt;
|
|
|
|
return hdac_hdmi_init_dai_map(edev);
|
|
}
|
|
|
|
static void hdac_hdmi_eld_notify_cb(void *aptr, int port)
|
|
{
|
|
struct hdac_ext_device *edev = aptr;
|
|
struct hdac_hdmi_priv *hdmi = edev->private_data;
|
|
struct hdac_hdmi_pin *pin;
|
|
struct snd_soc_codec *codec = edev->scodec;
|
|
|
|
/* Don't know how this mapping is derived */
|
|
hda_nid_t pin_nid = port + 0x04;
|
|
|
|
dev_dbg(&edev->hdac.dev, "%s: for pin: %d\n", __func__, pin_nid);
|
|
|
|
/*
|
|
* skip notification during system suspend (but not in runtime PM);
|
|
* the state will be updated at resume. Also since the ELD and
|
|
* connection states are updated in anyway at the end of the resume,
|
|
* we can skip it when received during PM process.
|
|
*/
|
|
if (snd_power_get_state(codec->component.card->snd_card) !=
|
|
SNDRV_CTL_POWER_D0)
|
|
return;
|
|
|
|
if (atomic_read(&edev->hdac.in_pm))
|
|
return;
|
|
|
|
list_for_each_entry(pin, &hdmi->pin_list, head) {
|
|
if (pin->nid == pin_nid)
|
|
hdac_hdmi_present_sense(pin, 1);
|
|
}
|
|
}
|
|
|
|
static struct i915_audio_component_audio_ops aops = {
|
|
.pin_eld_notify = hdac_hdmi_eld_notify_cb,
|
|
};
|
|
|
|
static struct snd_pcm *hdac_hdmi_get_pcm_from_id(struct snd_soc_card *card,
|
|
int device)
|
|
{
|
|
struct snd_soc_pcm_runtime *rtd;
|
|
|
|
list_for_each_entry(rtd, &card->rtd_list, list) {
|
|
if (rtd->pcm && (rtd->pcm->device == device))
|
|
return rtd->pcm;
|
|
}
|
|
|
|
return NULL;
|
|
}
|
|
|
|
int hdac_hdmi_jack_init(struct snd_soc_dai *dai, int device)
|
|
{
|
|
char jack_name[NAME_SIZE];
|
|
struct snd_soc_codec *codec = dai->codec;
|
|
struct hdac_ext_device *edev = snd_soc_codec_get_drvdata(codec);
|
|
struct snd_soc_dapm_context *dapm =
|
|
snd_soc_component_get_dapm(&codec->component);
|
|
struct hdac_hdmi_priv *hdmi = edev->private_data;
|
|
struct hdac_hdmi_pcm *pcm;
|
|
struct snd_pcm *snd_pcm;
|
|
int err;
|
|
|
|
/*
|
|
* this is a new PCM device, create new pcm and
|
|
* add to the pcm list
|
|
*/
|
|
pcm = kzalloc(sizeof(*pcm), GFP_KERNEL);
|
|
if (!pcm)
|
|
return -ENOMEM;
|
|
pcm->pcm_id = device;
|
|
pcm->cvt = hdmi->dai_map[dai->id].cvt;
|
|
|
|
snd_pcm = hdac_hdmi_get_pcm_from_id(dai->component->card, device);
|
|
if (snd_pcm) {
|
|
err = snd_hdac_add_chmap_ctls(snd_pcm, device, &hdmi->chmap);
|
|
if (err < 0) {
|
|
dev_err(&edev->hdac.dev,
|
|
"chmap control add failed with err: %d for pcm: %d\n",
|
|
err, device);
|
|
kfree(pcm);
|
|
return err;
|
|
}
|
|
}
|
|
|
|
list_add_tail(&pcm->head, &hdmi->pcm_list);
|
|
|
|
sprintf(jack_name, "HDMI/DP, pcm=%d Jack", device);
|
|
|
|
return snd_jack_new(dapm->card->snd_card, jack_name,
|
|
SND_JACK_AVOUT, &pcm->jack, true, false);
|
|
}
|
|
EXPORT_SYMBOL_GPL(hdac_hdmi_jack_init);
|
|
|
|
static int hdmi_codec_probe(struct snd_soc_codec *codec)
|
|
{
|
|
struct hdac_ext_device *edev = snd_soc_codec_get_drvdata(codec);
|
|
struct hdac_hdmi_priv *hdmi = edev->private_data;
|
|
struct snd_soc_dapm_context *dapm =
|
|
snd_soc_component_get_dapm(&codec->component);
|
|
struct hdac_hdmi_pin *pin;
|
|
struct hdac_ext_link *hlink = NULL;
|
|
int ret;
|
|
|
|
edev->scodec = codec;
|
|
|
|
/*
|
|
* hold the ref while we probe, also no need to drop the ref on
|
|
* exit, we call pm_runtime_suspend() so that will do for us
|
|
*/
|
|
hlink = snd_hdac_ext_bus_get_link(edev->ebus, dev_name(&edev->hdac.dev));
|
|
if (!hlink) {
|
|
dev_err(&edev->hdac.dev, "hdac link not found\n");
|
|
return -EIO;
|
|
}
|
|
|
|
snd_hdac_ext_bus_link_get(edev->ebus, hlink);
|
|
|
|
ret = create_fill_widget_route_map(dapm);
|
|
if (ret < 0)
|
|
return ret;
|
|
|
|
aops.audio_ptr = edev;
|
|
ret = snd_hdac_i915_register_notifier(&aops);
|
|
if (ret < 0) {
|
|
dev_err(&edev->hdac.dev, "notifier register failed: err: %d\n",
|
|
ret);
|
|
return ret;
|
|
}
|
|
|
|
list_for_each_entry(pin, &hdmi->pin_list, head)
|
|
hdac_hdmi_present_sense(pin, 1);
|
|
|
|
/* Imp: Store the card pointer in hda_codec */
|
|
edev->card = dapm->card->snd_card;
|
|
|
|
/*
|
|
* hdac_device core already sets the state to active and calls
|
|
* get_noresume. So enable runtime and set the device to suspend.
|
|
*/
|
|
pm_runtime_enable(&edev->hdac.dev);
|
|
pm_runtime_put(&edev->hdac.dev);
|
|
pm_runtime_suspend(&edev->hdac.dev);
|
|
|
|
return 0;
|
|
}
|
|
|
|
static int hdmi_codec_remove(struct snd_soc_codec *codec)
|
|
{
|
|
struct hdac_ext_device *edev = snd_soc_codec_get_drvdata(codec);
|
|
|
|
pm_runtime_disable(&edev->hdac.dev);
|
|
return 0;
|
|
}
|
|
|
|
#ifdef CONFIG_PM
|
|
static int hdmi_codec_prepare(struct device *dev)
|
|
{
|
|
struct hdac_ext_device *edev = to_hda_ext_device(dev);
|
|
struct hdac_device *hdac = &edev->hdac;
|
|
|
|
pm_runtime_get_sync(&edev->hdac.dev);
|
|
|
|
/*
|
|
* Power down afg.
|
|
* codec_read is preferred over codec_write to set the power state.
|
|
* This way verb is send to set the power state and response
|
|
* is received. So setting power state is ensured without using loop
|
|
* to read the state.
|
|
*/
|
|
snd_hdac_codec_read(hdac, hdac->afg, 0, AC_VERB_SET_POWER_STATE,
|
|
AC_PWRST_D3);
|
|
|
|
return 0;
|
|
}
|
|
|
|
static void hdmi_codec_complete(struct device *dev)
|
|
{
|
|
struct hdac_ext_device *edev = to_hda_ext_device(dev);
|
|
struct hdac_hdmi_priv *hdmi = edev->private_data;
|
|
struct hdac_hdmi_pin *pin;
|
|
struct hdac_device *hdac = &edev->hdac;
|
|
|
|
/* Power up afg */
|
|
snd_hdac_codec_read(hdac, hdac->afg, 0, AC_VERB_SET_POWER_STATE,
|
|
AC_PWRST_D0);
|
|
|
|
hdac_hdmi_skl_enable_all_pins(&edev->hdac);
|
|
hdac_hdmi_skl_enable_dp12(&edev->hdac);
|
|
|
|
/*
|
|
* As the ELD notify callback request is not entertained while the
|
|
* device is in suspend state. Need to manually check detection of
|
|
* all pins here.
|
|
*/
|
|
list_for_each_entry(pin, &hdmi->pin_list, head)
|
|
hdac_hdmi_present_sense(pin, 1);
|
|
|
|
pm_runtime_put_sync(&edev->hdac.dev);
|
|
}
|
|
#else
|
|
#define hdmi_codec_prepare NULL
|
|
#define hdmi_codec_complete NULL
|
|
#endif
|
|
|
|
static struct snd_soc_codec_driver hdmi_hda_codec = {
|
|
.probe = hdmi_codec_probe,
|
|
.remove = hdmi_codec_remove,
|
|
.idle_bias_off = true,
|
|
};
|
|
|
|
static void hdac_hdmi_get_chmap(struct hdac_device *hdac, int pcm_idx,
|
|
unsigned char *chmap)
|
|
{
|
|
struct hdac_ext_device *edev = to_ehdac_device(hdac);
|
|
struct hdac_hdmi_priv *hdmi = edev->private_data;
|
|
struct hdac_hdmi_pcm *pcm = get_hdmi_pcm_from_id(hdmi, pcm_idx);
|
|
struct hdac_hdmi_pin *pin = pcm->pin;
|
|
|
|
/* chmap is already set to 0 in caller */
|
|
if (!pin)
|
|
return;
|
|
|
|
memcpy(chmap, pin->chmap, ARRAY_SIZE(pin->chmap));
|
|
}
|
|
|
|
static void hdac_hdmi_set_chmap(struct hdac_device *hdac, int pcm_idx,
|
|
unsigned char *chmap, int prepared)
|
|
{
|
|
struct hdac_ext_device *edev = to_ehdac_device(hdac);
|
|
struct hdac_hdmi_priv *hdmi = edev->private_data;
|
|
struct hdac_hdmi_pcm *pcm = get_hdmi_pcm_from_id(hdmi, pcm_idx);
|
|
struct hdac_hdmi_pin *pin = pcm->pin;
|
|
|
|
mutex_lock(&pin->lock);
|
|
pin->chmap_set = true;
|
|
memcpy(pin->chmap, chmap, ARRAY_SIZE(pin->chmap));
|
|
if (prepared)
|
|
hdac_hdmi_setup_audio_infoframe(edev, pcm->cvt->nid, pin->nid);
|
|
mutex_unlock(&pin->lock);
|
|
}
|
|
|
|
static bool is_hdac_hdmi_pcm_attached(struct hdac_device *hdac, int pcm_idx)
|
|
{
|
|
struct hdac_ext_device *edev = to_ehdac_device(hdac);
|
|
struct hdac_hdmi_priv *hdmi = edev->private_data;
|
|
struct hdac_hdmi_pcm *pcm = get_hdmi_pcm_from_id(hdmi, pcm_idx);
|
|
struct hdac_hdmi_pin *pin = pcm->pin;
|
|
|
|
return pin ? true:false;
|
|
}
|
|
|
|
static int hdac_hdmi_get_spk_alloc(struct hdac_device *hdac, int pcm_idx)
|
|
{
|
|
struct hdac_ext_device *edev = to_ehdac_device(hdac);
|
|
struct hdac_hdmi_priv *hdmi = edev->private_data;
|
|
struct hdac_hdmi_pcm *pcm = get_hdmi_pcm_from_id(hdmi, pcm_idx);
|
|
struct hdac_hdmi_pin *pin = pcm->pin;
|
|
|
|
if (!pin || !pin->eld.eld_valid)
|
|
return 0;
|
|
|
|
return pin->eld.info.spk_alloc;
|
|
}
|
|
|
|
static int hdac_hdmi_dev_probe(struct hdac_ext_device *edev)
|
|
{
|
|
struct hdac_device *codec = &edev->hdac;
|
|
struct hdac_hdmi_priv *hdmi_priv;
|
|
struct snd_soc_dai_driver *hdmi_dais = NULL;
|
|
struct hdac_ext_link *hlink = NULL;
|
|
int num_dais = 0;
|
|
int ret = 0;
|
|
|
|
/* hold the ref while we probe */
|
|
hlink = snd_hdac_ext_bus_get_link(edev->ebus, dev_name(&edev->hdac.dev));
|
|
if (!hlink) {
|
|
dev_err(&edev->hdac.dev, "hdac link not found\n");
|
|
return -EIO;
|
|
}
|
|
|
|
snd_hdac_ext_bus_link_get(edev->ebus, hlink);
|
|
|
|
hdmi_priv = devm_kzalloc(&codec->dev, sizeof(*hdmi_priv), GFP_KERNEL);
|
|
if (hdmi_priv == NULL)
|
|
return -ENOMEM;
|
|
|
|
edev->private_data = hdmi_priv;
|
|
snd_hdac_register_chmap_ops(codec, &hdmi_priv->chmap);
|
|
hdmi_priv->chmap.ops.get_chmap = hdac_hdmi_get_chmap;
|
|
hdmi_priv->chmap.ops.set_chmap = hdac_hdmi_set_chmap;
|
|
hdmi_priv->chmap.ops.is_pcm_attached = is_hdac_hdmi_pcm_attached;
|
|
hdmi_priv->chmap.ops.get_spk_alloc = hdac_hdmi_get_spk_alloc;
|
|
|
|
dev_set_drvdata(&codec->dev, edev);
|
|
|
|
INIT_LIST_HEAD(&hdmi_priv->pin_list);
|
|
INIT_LIST_HEAD(&hdmi_priv->cvt_list);
|
|
INIT_LIST_HEAD(&hdmi_priv->pcm_list);
|
|
mutex_init(&hdmi_priv->pin_mutex);
|
|
|
|
/*
|
|
* Turned off in the runtime_suspend during the first explicit
|
|
* pm_runtime_suspend call.
|
|
*/
|
|
ret = snd_hdac_display_power(edev->hdac.bus, true);
|
|
if (ret < 0) {
|
|
dev_err(&edev->hdac.dev,
|
|
"Cannot turn on display power on i915 err: %d\n",
|
|
ret);
|
|
return ret;
|
|
}
|
|
|
|
ret = hdac_hdmi_parse_and_map_nid(edev, &hdmi_dais, &num_dais);
|
|
if (ret < 0) {
|
|
dev_err(&codec->dev,
|
|
"Failed in parse and map nid with err: %d\n", ret);
|
|
return ret;
|
|
}
|
|
|
|
/* ASoC specific initialization */
|
|
ret = snd_soc_register_codec(&codec->dev, &hdmi_hda_codec,
|
|
hdmi_dais, num_dais);
|
|
|
|
snd_hdac_ext_bus_link_put(edev->ebus, hlink);
|
|
|
|
return ret;
|
|
}
|
|
|
|
static int hdac_hdmi_dev_remove(struct hdac_ext_device *edev)
|
|
{
|
|
struct hdac_hdmi_priv *hdmi = edev->private_data;
|
|
struct hdac_hdmi_pin *pin, *pin_next;
|
|
struct hdac_hdmi_cvt *cvt, *cvt_next;
|
|
struct hdac_hdmi_pcm *pcm, *pcm_next;
|
|
|
|
snd_soc_unregister_codec(&edev->hdac.dev);
|
|
|
|
list_for_each_entry_safe(pcm, pcm_next, &hdmi->pcm_list, head) {
|
|
pcm->cvt = NULL;
|
|
pcm->pin = NULL;
|
|
list_del(&pcm->head);
|
|
kfree(pcm);
|
|
}
|
|
|
|
list_for_each_entry_safe(cvt, cvt_next, &hdmi->cvt_list, head) {
|
|
list_del(&cvt->head);
|
|
kfree(cvt->name);
|
|
kfree(cvt);
|
|
}
|
|
|
|
list_for_each_entry_safe(pin, pin_next, &hdmi->pin_list, head) {
|
|
list_del(&pin->head);
|
|
kfree(pin);
|
|
}
|
|
|
|
return 0;
|
|
}
|
|
|
|
#ifdef CONFIG_PM
|
|
static int hdac_hdmi_runtime_suspend(struct device *dev)
|
|
{
|
|
struct hdac_ext_device *edev = to_hda_ext_device(dev);
|
|
struct hdac_device *hdac = &edev->hdac;
|
|
struct hdac_bus *bus = hdac->bus;
|
|
struct hdac_ext_bus *ebus = hbus_to_ebus(bus);
|
|
struct hdac_ext_link *hlink = NULL;
|
|
int err;
|
|
|
|
dev_dbg(dev, "Enter: %s\n", __func__);
|
|
|
|
/* controller may not have been initialized for the first time */
|
|
if (!bus)
|
|
return 0;
|
|
|
|
/*
|
|
* Power down afg.
|
|
* codec_read is preferred over codec_write to set the power state.
|
|
* This way verb is send to set the power state and response
|
|
* is received. So setting power state is ensured without using loop
|
|
* to read the state.
|
|
*/
|
|
snd_hdac_codec_read(hdac, hdac->afg, 0, AC_VERB_SET_POWER_STATE,
|
|
AC_PWRST_D3);
|
|
err = snd_hdac_display_power(bus, false);
|
|
if (err < 0) {
|
|
dev_err(bus->dev, "Cannot turn on display power on i915\n");
|
|
return err;
|
|
}
|
|
|
|
hlink = snd_hdac_ext_bus_get_link(ebus, dev_name(dev));
|
|
if (!hlink) {
|
|
dev_err(dev, "hdac link not found\n");
|
|
return -EIO;
|
|
}
|
|
|
|
snd_hdac_ext_bus_link_put(ebus, hlink);
|
|
|
|
return 0;
|
|
}
|
|
|
|
static int hdac_hdmi_runtime_resume(struct device *dev)
|
|
{
|
|
struct hdac_ext_device *edev = to_hda_ext_device(dev);
|
|
struct hdac_device *hdac = &edev->hdac;
|
|
struct hdac_bus *bus = hdac->bus;
|
|
struct hdac_ext_bus *ebus = hbus_to_ebus(bus);
|
|
struct hdac_ext_link *hlink = NULL;
|
|
int err;
|
|
|
|
dev_dbg(dev, "Enter: %s\n", __func__);
|
|
|
|
/* controller may not have been initialized for the first time */
|
|
if (!bus)
|
|
return 0;
|
|
|
|
hlink = snd_hdac_ext_bus_get_link(ebus, dev_name(dev));
|
|
if (!hlink) {
|
|
dev_err(dev, "hdac link not found\n");
|
|
return -EIO;
|
|
}
|
|
|
|
snd_hdac_ext_bus_link_get(ebus, hlink);
|
|
|
|
err = snd_hdac_display_power(bus, true);
|
|
if (err < 0) {
|
|
dev_err(bus->dev, "Cannot turn on display power on i915\n");
|
|
return err;
|
|
}
|
|
|
|
hdac_hdmi_skl_enable_all_pins(&edev->hdac);
|
|
hdac_hdmi_skl_enable_dp12(&edev->hdac);
|
|
|
|
/* Power up afg */
|
|
snd_hdac_codec_read(hdac, hdac->afg, 0, AC_VERB_SET_POWER_STATE,
|
|
AC_PWRST_D0);
|
|
|
|
return 0;
|
|
}
|
|
#else
|
|
#define hdac_hdmi_runtime_suspend NULL
|
|
#define hdac_hdmi_runtime_resume NULL
|
|
#endif
|
|
|
|
static const struct dev_pm_ops hdac_hdmi_pm = {
|
|
SET_RUNTIME_PM_OPS(hdac_hdmi_runtime_suspend, hdac_hdmi_runtime_resume, NULL)
|
|
.prepare = hdmi_codec_prepare,
|
|
.complete = hdmi_codec_complete,
|
|
};
|
|
|
|
static const struct hda_device_id hdmi_list[] = {
|
|
HDA_CODEC_EXT_ENTRY(0x80862809, 0x100000, "Skylake HDMI", 0),
|
|
HDA_CODEC_EXT_ENTRY(0x8086280a, 0x100000, "Broxton HDMI", 0),
|
|
{}
|
|
};
|
|
|
|
MODULE_DEVICE_TABLE(hdaudio, hdmi_list);
|
|
|
|
static struct hdac_ext_driver hdmi_driver = {
|
|
. hdac = {
|
|
.driver = {
|
|
.name = "HDMI HDA Codec",
|
|
.pm = &hdac_hdmi_pm,
|
|
},
|
|
.id_table = hdmi_list,
|
|
},
|
|
.probe = hdac_hdmi_dev_probe,
|
|
.remove = hdac_hdmi_dev_remove,
|
|
};
|
|
|
|
static int __init hdmi_init(void)
|
|
{
|
|
return snd_hda_ext_driver_register(&hdmi_driver);
|
|
}
|
|
|
|
static void __exit hdmi_exit(void)
|
|
{
|
|
snd_hda_ext_driver_unregister(&hdmi_driver);
|
|
}
|
|
|
|
module_init(hdmi_init);
|
|
module_exit(hdmi_exit);
|
|
|
|
MODULE_LICENSE("GPL v2");
|
|
MODULE_DESCRIPTION("HDMI HD codec");
|
|
MODULE_AUTHOR("Samreen Nilofer<samreen.nilofer@intel.com>");
|
|
MODULE_AUTHOR("Subhransu S. Prusty<subhransu.s.prusty@intel.com>");
|