init android origin source code

1 files changed, 1986 insertions, 0 deletions

diff --git a/ANDROID_3.4.5/sound/pci/hda/patch_hdmi.c b/ANDROID_3.4.5/sound/pci/hda/patch_hdmi.c
new file mode 100644
index 00000000..83f345f3
--- /dev/null
+++ b/ANDROID_3.4.5/sound/pci/hda/patch_hdmi.c
@@ -0,0 +1,1986 @@
+/*
+ *
+ *  patch_hdmi.c - routines for HDMI/DisplayPort codecs
+ *
+ *  Copyright(c) 2008-2010 Intel Corporation. All rights reserved.
+ *  Copyright (c) 2006 ATI Technologies Inc.
+ *  Copyright (c) 2008 NVIDIA Corp.  All rights reserved.
+ *  Copyright (c) 2008 Wei Ni <wni@nvidia.com>
+ *
+ *  Authors:
+ *			Wu Fengguang <wfg@linux.intel.com>
+ *
+ *  Maintained by:
+ *			Wu Fengguang <wfg@linux.intel.com>
+ *
+ *  This program is free software; you can redistribute it and/or modify it
+ *  under the terms of the GNU General Public License as published by the Free
+ *  Software Foundation; either version 2 of the License, or (at your option)
+ *  any later version.
+ *
+ *  This program is distributed in the hope that it will be useful, but
+ *  WITHOUT ANY WARRANTY; without even the implied warranty of MERCHANTABILITY
+ *  or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU General Public License
+ *  for more details.
+ *
+ *  You should have received a copy of the GNU General Public License
+ *  along with this program; if not, write to the Free Software Foundation,
+ *  Inc., 59 Temple Place - Suite 330, Boston, MA  02111-1307, USA.
+ */
+
+#include <linux/init.h>
+#include <linux/delay.h>
+#include <linux/slab.h>
+#include <linux/module.h>
+#include <sound/core.h>
+#include <sound/jack.h>
+#include "hda_codec.h"
+#include "hda_local.h"
+#include "hda_jack.h"
+
+static bool static_hdmi_pcm;
+module_param(static_hdmi_pcm, bool, 0644);
+MODULE_PARM_DESC(static_hdmi_pcm, "Don't restrict PCM parameters per ELD info");
+
+/*
+ * The HDMI/DisplayPort configuration can be highly dynamic. A graphics device
+ * could support N independent pipes, each of them can be connected to one or
+ * more ports (DVI, HDMI or DisplayPort).
+ *
+ * The HDA correspondence of pipes/ports are converter/pin nodes.
+ */
+#define MAX_HDMI_CVTS	8
+#define MAX_HDMI_PINS	8
+
+struct hdmi_spec_per_cvt {
+	hda_nid_t cvt_nid;
+	int assigned;
+	unsigned int channels_min;
+	unsigned int channels_max;
+	u32 rates;
+	u64 formats;
+	unsigned int maxbps;
+};
+
+struct hdmi_spec_per_pin {
+	hda_nid_t pin_nid;
+	int num_mux_nids;
+	hda_nid_t mux_nids[HDA_MAX_CONNECTIONS];
+
+	struct hda_codec *codec;
+	struct hdmi_eld sink_eld;
+	struct delayed_work work;
+	int repoll_count;
+};
+
+struct hdmi_spec {
+	int num_cvts;
+	struct hdmi_spec_per_cvt cvts[MAX_HDMI_CVTS];
+
+	int num_pins;
+	struct hdmi_spec_per_pin pins[MAX_HDMI_PINS];
+	struct hda_pcm pcm_rec[MAX_HDMI_PINS];
+
+	/*
+	 * Non-generic ATI/NVIDIA specific
+	 */
+	struct hda_multi_out multiout;
+	const struct hda_pcm_stream *pcm_playback;
+};
+
+
+struct hdmi_audio_infoframe {
+	u8 type; /* 0x84 */
+	u8 ver;  /* 0x01 */
+	u8 len;  /* 0x0a */
+
+	u8 checksum;
+
+	u8 CC02_CT47;	/* CC in bits 0:2, CT in 4:7 */
+	u8 SS01_SF24;
+	u8 CXT04;
+	u8 CA;
+	u8 LFEPBL01_LSV36_DM_INH7;
+};
+
+struct dp_audio_infoframe {
+	u8 type; /* 0x84 */
+	u8 len;  /* 0x1b */
+	u8 ver;  /* 0x11 << 2 */
+
+	u8 CC02_CT47;	/* match with HDMI infoframe from this on */
+	u8 SS01_SF24;
+	u8 CXT04;
+	u8 CA;
+	u8 LFEPBL01_LSV36_DM_INH7;
+};
+
+union audio_infoframe {
+	struct hdmi_audio_infoframe hdmi;
+	struct dp_audio_infoframe dp;
+	u8 bytes[0];
+};
+
+/*
+ * CEA speaker placement:
+ *
+ *        FLH       FCH        FRH
+ *  FLW    FL  FLC   FC   FRC   FR   FRW
+ *
+ *                                  LFE
+ *                     TC
+ *
+ *          RL  RLC   RC   RRC   RR
+ *
+ * The Left/Right Surround channel _notions_ LS/RS in SMPTE 320M corresponds to
+ * CEA RL/RR; The SMPTE channel _assignment_ C/LFE is swapped to CEA LFE/FC.
+ */
+enum cea_speaker_placement {
+	FL  = (1 <<  0),	/* Front Left           */
+	FC  = (1 <<  1),	/* Front Center         */
+	FR  = (1 <<  2),	/* Front Right          */
+	FLC = (1 <<  3),	/* Front Left Center    */
+	FRC = (1 <<  4),	/* Front Right Center   */
+	RL  = (1 <<  5),	/* Rear Left            */
+	RC  = (1 <<  6),	/* Rear Center          */
+	RR  = (1 <<  7),	/* Rear Right           */
+	RLC = (1 <<  8),	/* Rear Left Center     */
+	RRC = (1 <<  9),	/* Rear Right Center    */
+	LFE = (1 << 10),	/* Low Frequency Effect */
+	FLW = (1 << 11),	/* Front Left Wide      */
+	FRW = (1 << 12),	/* Front Right Wide     */
+	FLH = (1 << 13),	/* Front Left High      */
+	FCH = (1 << 14),	/* Front Center High    */
+	FRH = (1 << 15),	/* Front Right High     */
+	TC  = (1 << 16),	/* Top Center           */
+};
+
+/*
+ * ELD SA bits in the CEA Speaker Allocation data block
+ */
+static int eld_speaker_allocation_bits[] = {
+	[0] = FL | FR,
+	[1] = LFE,
+	[2] = FC,
+	[3] = RL | RR,
+	[4] = RC,
+	[5] = FLC | FRC,
+	[6] = RLC | RRC,
+	/* the following are not defined in ELD yet */
+	[7] = FLW | FRW,
+	[8] = FLH | FRH,
+	[9] = TC,
+	[10] = FCH,
+};
+
+struct cea_channel_speaker_allocation {
+	int ca_index;
+	int speakers[8];
+
+	/* derived values, just for convenience */
+	int channels;
+	int spk_mask;
+};
+
+/*
+ * ALSA sequence is:
+ *
+ *       surround40   surround41   surround50   surround51   surround71
+ * ch0   front left   =            =            =            =
+ * ch1   front right  =            =            =            =
+ * ch2   rear left    =            =            =            =
+ * ch3   rear right   =            =            =            =
+ * ch4                LFE          center       center       center
+ * ch5                                          LFE          LFE
+ * ch6                                                       side left
+ * ch7                                                       side right
+ *
+ * surround71 = {FL, FR, RLC, RRC, FC, LFE, RL, RR}
+ */
+static int hdmi_channel_mapping[0x32][8] = {
+	/* stereo */
+	[0x00] = { 0x00, 0x11, 0xf2, 0xf3, 0xf4, 0xf5, 0xf6, 0xf7 },
+	/* 2.1 */
+	[0x01] = { 0x00, 0x11, 0x22, 0xf3, 0xf4, 0xf5, 0xf6, 0xf7 },
+	/* Dolby Surround */
+	[0x02] = { 0x00, 0x11, 0x23, 0xf2, 0xf4, 0xf5, 0xf6, 0xf7 },
+	/* surround40 */
+	[0x08] = { 0x00, 0x11, 0x24, 0x35, 0xf3, 0xf2, 0xf6, 0xf7 },
+	/* 4ch */
+	[0x03] = { 0x00, 0x11, 0x23, 0x32, 0x44, 0xf5, 0xf6, 0xf7 },
+	/* surround41 */
+	[0x09] = { 0x00, 0x11, 0x24, 0x35, 0x42, 0xf3, 0xf6, 0xf7 },
+	/* surround50 */
+	[0x0a] = { 0x00, 0x11, 0x24, 0x35, 0x43, 0xf2, 0xf6, 0xf7 },
+	/* surround51 */
+	[0x0b] = { 0x00, 0x11, 0x24, 0x35, 0x43, 0x52, 0xf6, 0xf7 },
+	/* 7.1 */
+	[0x13] = { 0x00, 0x11, 0x26, 0x37, 0x43, 0x52, 0x64, 0x75 },
+};
+
+/*
+ * This is an ordered list!
+ *
+ * The preceding ones have better chances to be selected by
+ * hdmi_channel_allocation().
+ */
+static struct cea_channel_speaker_allocation channel_allocations[] = {
+/*			  channel:   7     6    5    4    3     2    1    0  */
+{ .ca_index = 0x00,  .speakers = {   0,    0,   0,   0,   0,    0,  FR,  FL } },
+				 /* 2.1 */
+{ .ca_index = 0x01,  .speakers = {   0,    0,   0,   0,   0,  LFE,  FR,  FL } },
+				 /* Dolby Surround */
+{ .ca_index = 0x02,  .speakers = {   0,    0,   0,   0,  FC,    0,  FR,  FL } },
+				 /* surround40 */
+{ .ca_index = 0x08,  .speakers = {   0,    0,  RR,  RL,   0,    0,  FR,  FL } },
+				 /* surround41 */
+{ .ca_index = 0x09,  .speakers = {   0,    0,  RR,  RL,   0,  LFE,  FR,  FL } },
+				 /* surround50 */
+{ .ca_index = 0x0a,  .speakers = {   0,    0,  RR,  RL,  FC,    0,  FR,  FL } },
+				 /* surround51 */
+{ .ca_index = 0x0b,  .speakers = {   0,    0,  RR,  RL,  FC,  LFE,  FR,  FL } },
+				 /* 6.1 */
+{ .ca_index = 0x0f,  .speakers = {   0,   RC,  RR,  RL,  FC,  LFE,  FR,  FL } },
+				 /* surround71 */
+{ .ca_index = 0x13,  .speakers = { RRC,  RLC,  RR,  RL,  FC,  LFE,  FR,  FL } },
+
+{ .ca_index = 0x03,  .speakers = {   0,    0,   0,   0,  FC,  LFE,  FR,  FL } },
+{ .ca_index = 0x04,  .speakers = {   0,    0,   0,  RC,   0,    0,  FR,  FL } },
+{ .ca_index = 0x05,  .speakers = {   0,    0,   0,  RC,   0,  LFE,  FR,  FL } },
+{ .ca_index = 0x06,  .speakers = {   0,    0,   0,  RC,  FC,    0,  FR,  FL } },
+{ .ca_index = 0x07,  .speakers = {   0,    0,   0,  RC,  FC,  LFE,  FR,  FL } },
+{ .ca_index = 0x0c,  .speakers = {   0,   RC,  RR,  RL,   0,    0,  FR,  FL } },
+{ .ca_index = 0x0d,  .speakers = {   0,   RC,  RR,  RL,   0,  LFE,  FR,  FL } },
+{ .ca_index = 0x0e,  .speakers = {   0,   RC,  RR,  RL,  FC,    0,  FR,  FL } },
+{ .ca_index = 0x10,  .speakers = { RRC,  RLC,  RR,  RL,   0,    0,  FR,  FL } },
+{ .ca_index = 0x11,  .speakers = { RRC,  RLC,  RR,  RL,   0,  LFE,  FR,  FL } },
+{ .ca_index = 0x12,  .speakers = { RRC,  RLC,  RR,  RL,  FC,    0,  FR,  FL } },
+{ .ca_index = 0x14,  .speakers = { FRC,  FLC,   0,   0,   0,    0,  FR,  FL } },
+{ .ca_index = 0x15,  .speakers = { FRC,  FLC,   0,   0,   0,  LFE,  FR,  FL } },
+{ .ca_index = 0x16,  .speakers = { FRC,  FLC,   0,   0,  FC,    0,  FR,  FL } },
+{ .ca_index = 0x17,  .speakers = { FRC,  FLC,   0,   0,  FC,  LFE,  FR,  FL } },
+{ .ca_index = 0x18,  .speakers = { FRC,  FLC,   0,  RC,   0,    0,  FR,  FL } },
+{ .ca_index = 0x19,  .speakers = { FRC,  FLC,   0,  RC,   0,  LFE,  FR,  FL } },
+{ .ca_index = 0x1a,  .speakers = { FRC,  FLC,   0,  RC,  FC,    0,  FR,  FL } },
+{ .ca_index = 0x1b,  .speakers = { FRC,  FLC,   0,  RC,  FC,  LFE,  FR,  FL } },
+{ .ca_index = 0x1c,  .speakers = { FRC,  FLC,  RR,  RL,   0,    0,  FR,  FL } },
+{ .ca_index = 0x1d,  .speakers = { FRC,  FLC,  RR,  RL,   0,  LFE,  FR,  FL } },
+{ .ca_index = 0x1e,  .speakers = { FRC,  FLC,  RR,  RL,  FC,    0,  FR,  FL } },
+{ .ca_index = 0x1f,  .speakers = { FRC,  FLC,  RR,  RL,  FC,  LFE,  FR,  FL } },
+{ .ca_index = 0x20,  .speakers = {   0,  FCH,  RR,  RL,  FC,    0,  FR,  FL } },
+{ .ca_index = 0x21,  .speakers = {   0,  FCH,  RR,  RL,  FC,  LFE,  FR,  FL } },
+{ .ca_index = 0x22,  .speakers = {  TC,    0,  RR,  RL,  FC,    0,  FR,  FL } },
+{ .ca_index = 0x23,  .speakers = {  TC,    0,  RR,  RL,  FC,  LFE,  FR,  FL } },
+{ .ca_index = 0x24,  .speakers = { FRH,  FLH,  RR,  RL,   0,    0,  FR,  FL } },
+{ .ca_index = 0x25,  .speakers = { FRH,  FLH,  RR,  RL,   0,  LFE,  FR,  FL } },
+{ .ca_index = 0x26,  .speakers = { FRW,  FLW,  RR,  RL,   0,    0,  FR,  FL } },
+{ .ca_index = 0x27,  .speakers = { FRW,  FLW,  RR,  RL,   0,  LFE,  FR,  FL } },
+{ .ca_index = 0x28,  .speakers = {  TC,   RC,  RR,  RL,  FC,    0,  FR,  FL } },
+{ .ca_index = 0x29,  .speakers = {  TC,   RC,  RR,  RL,  FC,  LFE,  FR,  FL } },
+{ .ca_index = 0x2a,  .speakers = { FCH,   RC,  RR,  RL,  FC,    0,  FR,  FL } },
+{ .ca_index = 0x2b,  .speakers = { FCH,   RC,  RR,  RL,  FC,  LFE,  FR,  FL } },
+{ .ca_index = 0x2c,  .speakers = {  TC,  FCH,  RR,  RL,  FC,    0,  FR,  FL } },
+{ .ca_index = 0x2d,  .speakers = {  TC,  FCH,  RR,  RL,  FC,  LFE,  FR,  FL } },
+{ .ca_index = 0x2e,  .speakers = { FRH,  FLH,  RR,  RL,  FC,    0,  FR,  FL } },
+{ .ca_index = 0x2f,  .speakers = { FRH,  FLH,  RR,  RL,  FC,  LFE,  FR,  FL } },
+{ .ca_index = 0x30,  .speakers = { FRW,  FLW,  RR,  RL,  FC,    0,  FR,  FL } },
+{ .ca_index = 0x31,  .speakers = { FRW,  FLW,  RR,  RL,  FC,  LFE,  FR,  FL } },
+};
+
+
+/*
+ * HDMI routines
+ */
+
+static int pin_nid_to_pin_index(struct hdmi_spec *spec, hda_nid_t pin_nid)
+{
+	int pin_idx;
+
+	for (pin_idx = 0; pin_idx < spec->num_pins; pin_idx++)
+		if (spec->pins[pin_idx].pin_nid == pin_nid)
+			return pin_idx;
+
+	snd_printk(KERN_WARNING "HDMI: pin nid %d not registered\n", pin_nid);
+	return -EINVAL;
+}
+
+static int hinfo_to_pin_index(struct hdmi_spec *spec,
+			      struct hda_pcm_stream *hinfo)
+{
+	int pin_idx;
+
+	for (pin_idx = 0; pin_idx < spec->num_pins; pin_idx++)
+		if (&spec->pcm_rec[pin_idx].stream[0] == hinfo)
+			return pin_idx;
+
+	snd_printk(KERN_WARNING "HDMI: hinfo %p not registered\n", hinfo);
+	return -EINVAL;
+}
+
+static int cvt_nid_to_cvt_index(struct hdmi_spec *spec, hda_nid_t cvt_nid)
+{
+	int cvt_idx;
+
+	for (cvt_idx = 0; cvt_idx < spec->num_cvts; cvt_idx++)
+		if (spec->cvts[cvt_idx].cvt_nid == cvt_nid)
+			return cvt_idx;
+
+	snd_printk(KERN_WARNING "HDMI: cvt nid %d not registered\n", cvt_nid);
+	return -EINVAL;
+}
+
+static int hdmi_eld_ctl_info(struct snd_kcontrol *kcontrol,
+			struct snd_ctl_elem_info *uinfo)
+{
+	struct hda_codec *codec = snd_kcontrol_chip(kcontrol);
+	struct hdmi_spec *spec;
+	int pin_idx;
+
+	spec = codec->spec;
+	uinfo->type = SNDRV_CTL_ELEM_TYPE_BYTES;
+
+	pin_idx = kcontrol->private_value;
+	uinfo->count = spec->pins[pin_idx].sink_eld.eld_size;
+
+	return 0;
+}
+
+static int hdmi_eld_ctl_get(struct snd_kcontrol *kcontrol,
+			struct snd_ctl_elem_value *ucontrol)
+{
+	struct hda_codec *codec = snd_kcontrol_chip(kcontrol);
+	struct hdmi_spec *spec;
+	int pin_idx;
+
+	spec = codec->spec;
+	pin_idx = kcontrol->private_value;
+
+	memcpy(ucontrol->value.bytes.data,
+		spec->pins[pin_idx].sink_eld.eld_buffer, ELD_MAX_SIZE);
+
+	return 0;
+}
+
+static struct snd_kcontrol_new eld_bytes_ctl = {
+	.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_create_eld_ctl(struct hda_codec *codec, int pin_idx,
+			int device)
+{
+	struct snd_kcontrol *kctl;
+	struct hdmi_spec *spec = codec->spec;
+	int err;
+
+	kctl = snd_ctl_new1(&eld_bytes_ctl, codec);
+	if (!kctl)
+		return -ENOMEM;
+	kctl->private_value = pin_idx;
+	kctl->id.device = device;
+
+	err = snd_hda_ctl_add(codec, spec->pins[pin_idx].pin_nid, kctl);
+	if (err < 0)
+		return err;
+
+	return 0;
+}
+
+#ifdef BE_PARANOID
+static void hdmi_get_dip_index(struct hda_codec *codec, hda_nid_t pin_nid,
+				int *packet_index, int *byte_index)
+{
+	int val;
+
+	val = snd_hda_codec_read(codec, pin_nid, 0,
+				 AC_VERB_GET_HDMI_DIP_INDEX, 0);
+
+	*packet_index = val >> 5;
+	*byte_index = val & 0x1f;
+}
+#endif
+
+static void hdmi_set_dip_index(struct hda_codec *codec, hda_nid_t pin_nid,
+				int packet_index, int byte_index)
+{
+	int val;
+
+	val = (packet_index << 5) | (byte_index & 0x1f);
+
+	snd_hda_codec_write(codec, pin_nid, 0, AC_VERB_SET_HDMI_DIP_INDEX, val);
+}
+
+static void hdmi_write_dip_byte(struct hda_codec *codec, hda_nid_t pin_nid,
+				unsigned char val)
+{
+	snd_hda_codec_write(codec, pin_nid, 0, AC_VERB_SET_HDMI_DIP_DATA, val);
+}
+
+static void hdmi_init_pin(struct hda_codec *codec, hda_nid_t pin_nid)
+{
+	/* Unmute */
+	if (get_wcaps(codec, pin_nid) & AC_WCAP_OUT_AMP)
+		snd_hda_codec_write(codec, pin_nid, 0,
+				AC_VERB_SET_AMP_GAIN_MUTE, AMP_OUT_UNMUTE);
+	/* Disable pin out until stream is active*/
+	snd_hda_codec_write(codec, pin_nid, 0,
+			    AC_VERB_SET_PIN_WIDGET_CONTROL, 0);
+}
+
+static int hdmi_get_channel_count(struct hda_codec *codec, hda_nid_t cvt_nid)
+{
+	return 1 + snd_hda_codec_read(codec, cvt_nid, 0,
+					AC_VERB_GET_CVT_CHAN_COUNT, 0);
+}
+
+static void hdmi_set_channel_count(struct hda_codec *codec,
+				   hda_nid_t cvt_nid, int chs)
+{
+	if (chs != hdmi_get_channel_count(codec, cvt_nid))
+		snd_hda_codec_write(codec, cvt_nid, 0,
+				    AC_VERB_SET_CVT_CHAN_COUNT, chs - 1);
+}
+
+
+/*
+ * Channel mapping routines
+ */
+
+/*
+ * Compute derived values in channel_allocations[].
+ */
+static void init_channel_allocations(void)
+{
+	int i, j;
+	struct cea_channel_speaker_allocation *p;
+
+	for (i = 0; i < ARRAY_SIZE(channel_allocations); i++) {
+		p = channel_allocations + i;
+		p->channels = 0;
+		p->spk_mask = 0;
+		for (j = 0; j < ARRAY_SIZE(p->speakers); j++)
+			if (p->speakers[j]) {
+				p->channels++;
+				p->spk_mask |= p->speakers[j];
+			}
+	}
+}
+
+/*
+ * The transformation takes two steps:
+ *
+ *	eld->spk_alloc => (eld_speaker_allocation_bits[]) => spk_mask
+ *	      spk_mask => (channel_allocations[])         => ai->CA
+ *
+ * TODO: it could select the wrong CA from multiple candidates.
+*/
+static int hdmi_channel_allocation(struct hdmi_eld *eld, int channels)
+{
+	int i;
+	int ca = 0;
+	int spk_mask = 0;
+	char buf[SND_PRINT_CHANNEL_ALLOCATION_ADVISED_BUFSIZE];
+
+	/*
+	 * CA defaults to 0 for basic stereo audio
+	 */
+	if (channels <= 2)
+		return 0;
+
+	/*
+	 * expand ELD's speaker allocation mask
+	 *
+	 * ELD tells the speaker mask in a compact(paired) form,
+	 * expand ELD's notions to match the ones used by Audio InfoFrame.
+	 */
+	for (i = 0; i < ARRAY_SIZE(eld_speaker_allocation_bits); i++) {
+		if (eld->spk_alloc & (1 << i))
+			spk_mask |= eld_speaker_allocation_bits[i];
+	}
+
+	/* search for the first working match in the CA table */
+	for (i = 0; i < ARRAY_SIZE(channel_allocations); i++) {
+		if (channels == channel_allocations[i].channels &&
+		    (spk_mask & channel_allocations[i].spk_mask) ==
+				channel_allocations[i].spk_mask) {
+			ca = channel_allocations[i].ca_index;
+			break;
+		}
+	}
+
+	snd_print_channel_allocation(eld->spk_alloc, buf, sizeof(buf));
+	snd_printdd("HDMI: select CA 0x%x for %d-channel allocation: %s\n",
+		    ca, channels, buf);
+
+	return ca;
+}
+
+static void hdmi_debug_channel_mapping(struct hda_codec *codec,
+				       hda_nid_t pin_nid)
+{
+#ifdef CONFIG_SND_DEBUG_VERBOSE
+	int i;
+	int slot;
+
+	for (i = 0; i < 8; i++) {
+		slot = snd_hda_codec_read(codec, pin_nid, 0,
+						AC_VERB_GET_HDMI_CHAN_SLOT, i);
+		printk(KERN_DEBUG "HDMI: ASP channel %d => slot %d\n",
+						slot >> 4, slot & 0xf);
+	}
+#endif
+}
+
+
+static void hdmi_setup_channel_mapping(struct hda_codec *codec,
+				       hda_nid_t pin_nid,
+				       int ca)
+{
+	int i;
+	int err;
+
+	if (hdmi_channel_mapping[ca][1] == 0) {
+		for (i = 0; i < channel_allocations[ca].channels; i++)
+			hdmi_channel_mapping[ca][i] = i | (i << 4);
+		for (; i < 8; i++)
+			hdmi_channel_mapping[ca][i] = 0xf | (i << 4);
+	}
+
+	for (i = 0; i < 8; i++) {
+		err = snd_hda_codec_write(codec, pin_nid, 0,
+					  AC_VERB_SET_HDMI_CHAN_SLOT,
+					  hdmi_channel_mapping[ca][i]);
+		if (err) {
+			snd_printdd(KERN_NOTICE
+				    "HDMI: channel mapping failed\n");
+			break;
+		}
+	}
+
+	hdmi_debug_channel_mapping(codec, pin_nid);
+}
+
+
+/*
+ * Audio InfoFrame routines
+ */
+
+/*
+ * Enable Audio InfoFrame Transmission
+ */
+static void hdmi_start_infoframe_trans(struct hda_codec *codec,
+				       hda_nid_t pin_nid)
+{
+	hdmi_set_dip_index(codec, pin_nid, 0x0, 0x0);
+	snd_hda_codec_write(codec, pin_nid, 0, AC_VERB_SET_HDMI_DIP_XMIT,
+						AC_DIPXMIT_BEST);
+}
+
+/*
+ * Disable Audio InfoFrame Transmission
+ */
+static void hdmi_stop_infoframe_trans(struct hda_codec *codec,
+				      hda_nid_t pin_nid)
+{
+	hdmi_set_dip_index(codec, pin_nid, 0x0, 0x0);
+	snd_hda_codec_write(codec, pin_nid, 0, AC_VERB_SET_HDMI_DIP_XMIT,
+						AC_DIPXMIT_DISABLE);
+}
+
+static void hdmi_debug_dip_size(struct hda_codec *codec, hda_nid_t pin_nid)
+{
+#ifdef CONFIG_SND_DEBUG_VERBOSE
+	int i;
+	int size;
+
+	size = snd_hdmi_get_eld_size(codec, pin_nid);
+	printk(KERN_DEBUG "HDMI: ELD buf size is %d\n", size);
+
+	for (i = 0; i < 8; i++) {
+		size = snd_hda_codec_read(codec, pin_nid, 0,
+						AC_VERB_GET_HDMI_DIP_SIZE, i);
+		printk(KERN_DEBUG "HDMI: DIP GP[%d] buf size is %d\n", i, size);
+	}
+#endif
+}
+
+static void hdmi_clear_dip_buffers(struct hda_codec *codec, hda_nid_t pin_nid)
+{
+#ifdef BE_PARANOID
+	int i, j;
+	int size;
+	int pi, bi;
+	for (i = 0; i < 8; i++) {
+		size = snd_hda_codec_read(codec, pin_nid, 0,
+						AC_VERB_GET_HDMI_DIP_SIZE, i);
+		if (size == 0)
+			continue;
+
+		hdmi_set_dip_index(codec, pin_nid, i, 0x0);
+		for (j = 1; j < 1000; j++) {
+			hdmi_write_dip_byte(codec, pin_nid, 0x0);
+			hdmi_get_dip_index(codec, pin_nid, &pi, &bi);
+			if (pi != i)
+				snd_printd(KERN_INFO "dip index %d: %d != %d\n",
+						bi, pi, i);
+			if (bi == 0) /* byte index wrapped around */
+				break;
+		}
+		snd_printd(KERN_INFO
+			"HDMI: DIP GP[%d] buf reported size=%d, written=%d\n",
+			i, size, j);
+	}
+#endif
+}
+
+static void hdmi_checksum_audio_infoframe(struct hdmi_audio_infoframe *hdmi_ai)
+{
+	u8 *bytes = (u8 *)hdmi_ai;
+	u8 sum = 0;
+	int i;
+
+	hdmi_ai->checksum = 0;
+
+	for (i = 0; i < sizeof(*hdmi_ai); i++)
+		sum += bytes[i];
+
+	hdmi_ai->checksum = -sum;
+}
+
+static void hdmi_fill_audio_infoframe(struct hda_codec *codec,
+				      hda_nid_t pin_nid,
+				      u8 *dip, int size)
+{
+	int i;
+
+	hdmi_debug_dip_size(codec, pin_nid);
+	hdmi_clear_dip_buffers(codec, pin_nid); /* be paranoid */
+
+	hdmi_set_dip_index(codec, pin_nid, 0x0, 0x0);
+	for (i = 0; i < size; i++)
+		hdmi_write_dip_byte(codec, pin_nid, dip[i]);
+}
+
+static bool hdmi_infoframe_uptodate(struct hda_codec *codec, hda_nid_t pin_nid,
+				    u8 *dip, int size)
+{
+	u8 val;
+	int i;
+
+	if (snd_hda_codec_read(codec, pin_nid, 0, AC_VERB_GET_HDMI_DIP_XMIT, 0)
+							    != AC_DIPXMIT_BEST)
+		return false;
+
+	hdmi_set_dip_index(codec, pin_nid, 0x0, 0x0);
+	for (i = 0; i < size; i++) {
+		val = snd_hda_codec_read(codec, pin_nid, 0,
+					 AC_VERB_GET_HDMI_DIP_DATA, 0);
+		if (val != dip[i])
+			return false;
+	}
+
+	return true;
+}
+
+static void hdmi_setup_audio_infoframe(struct hda_codec *codec, int pin_idx,
+					struct snd_pcm_substream *substream)
+{
+	struct hdmi_spec *spec = codec->spec;
+	struct hdmi_spec_per_pin *per_pin = &spec->pins[pin_idx];
+	hda_nid_t pin_nid = per_pin->pin_nid;
+	int channels = substream->runtime->channels;
+	struct hdmi_eld *eld;
+	int ca;
+	union audio_infoframe ai;
+
+	eld = &spec->pins[pin_idx].sink_eld;
+	if (!eld->monitor_present)
+		return;
+
+	ca = hdmi_channel_allocation(eld, channels);
+
+	memset(&ai, 0, sizeof(ai));
+	if (eld->conn_type == 0) { /* HDMI */
+		struct hdmi_audio_infoframe *hdmi_ai = &ai.hdmi;
+
+		hdmi_ai->type		= 0x84;
+		hdmi_ai->ver		= 0x01;
+		hdmi_ai->len		= 0x0a;
+		hdmi_ai->CC02_CT47	= channels - 1;
+		hdmi_ai->CA		= ca;
+		hdmi_checksum_audio_infoframe(hdmi_ai);
+	} else if (eld->conn_type == 1) { /* DisplayPort */
+		struct dp_audio_infoframe *dp_ai = &ai.dp;
+
+		dp_ai->type		= 0x84;
+		dp_ai->len		= 0x1b;
+		dp_ai->ver		= 0x11 << 2;
+		dp_ai->CC02_CT47	= channels - 1;
+		dp_ai->CA		= ca;
+	} else {
+		snd_printd("HDMI: unknown connection type at pin %d\n",
+			    pin_nid);
+		return;
+	}
+
+	/*
+	 * sizeof(ai) is used instead of sizeof(*hdmi_ai) or
+	 * sizeof(*dp_ai) to avoid partial match/update problems when
+	 * the user switches between HDMI/DP monitors.
+	 */
+	if (!hdmi_infoframe_uptodate(codec, pin_nid, ai.bytes,
+					sizeof(ai))) {
+		snd_printdd("hdmi_setup_audio_infoframe: "
+			    "pin=%d channels=%d\n",
+			    pin_nid,
+			    channels);
+		hdmi_setup_channel_mapping(codec, pin_nid, ca);
+		hdmi_stop_infoframe_trans(codec, pin_nid);
+		hdmi_fill_audio_infoframe(codec, pin_nid,
+					    ai.bytes, sizeof(ai));
+		hdmi_start_infoframe_trans(codec, pin_nid);
+	}
+}
+
+
+/*
+ * Unsolicited events
+ */
+
+static void hdmi_present_sense(struct hdmi_spec_per_pin *per_pin, int repoll);
+
+static void hdmi_intrinsic_event(struct hda_codec *codec, unsigned int res)
+{
+	struct hdmi_spec *spec = codec->spec;
+	int tag = res >> AC_UNSOL_RES_TAG_SHIFT;
+	int pin_nid;
+	int pin_idx;
+	struct hda_jack_tbl *jack;
+
+	jack = snd_hda_jack_tbl_get_from_tag(codec, tag);
+	if (!jack)
+		return;
+	pin_nid = jack->nid;
+	jack->jack_dirty = 1;
+
+	_snd_printd(SND_PR_VERBOSE,
+		"HDMI hot plug event: Codec=%d Pin=%d Presence_Detect=%d ELD_Valid=%d\n",
+		codec->addr, pin_nid,
+		!!(res & AC_UNSOL_RES_PD), !!(res & AC_UNSOL_RES_ELDV));
+
+	pin_idx = pin_nid_to_pin_index(spec, pin_nid);
+	if (pin_idx < 0)
+		return;
+
+	hdmi_present_sense(&spec->pins[pin_idx], 1);
+	snd_hda_jack_report_sync(codec);
+}
+
+static void hdmi_non_intrinsic_event(struct hda_codec *codec, unsigned int res)
+{
+	int tag = res >> AC_UNSOL_RES_TAG_SHIFT;
+	int subtag = (res & AC_UNSOL_RES_SUBTAG) >> AC_UNSOL_RES_SUBTAG_SHIFT;
+	int cp_state = !!(res & AC_UNSOL_RES_CP_STATE);
+	int cp_ready = !!(res & AC_UNSOL_RES_CP_READY);
+
+	printk(KERN_INFO
+		"HDMI CP event: CODEC=%d PIN=%d SUBTAG=0x%x CP_STATE=%d CP_READY=%d\n",
+		codec->addr,
+		tag,
+		subtag,
+		cp_state,
+		cp_ready);
+
+	/* TODO */
+	if (cp_state)
+		;
+	if (cp_ready)
+		;
+}
+
+
+static void hdmi_unsol_event(struct hda_codec *codec, unsigned int res)
+{
+	int tag = res >> AC_UNSOL_RES_TAG_SHIFT;
+	int subtag = (res & AC_UNSOL_RES_SUBTAG) >> AC_UNSOL_RES_SUBTAG_SHIFT;
+
+	if (!snd_hda_jack_tbl_get_from_tag(codec, tag)) {
+		snd_printd(KERN_INFO "Unexpected HDMI event tag 0x%x\n", tag);
+		return;
+	}
+
+	if (subtag == 0)
+		hdmi_intrinsic_event(codec, res);
+	else
+		hdmi_non_intrinsic_event(codec, res);
+}
+
+/*
+ * Callbacks
+ */
+
+/* HBR should be Non-PCM, 8 channels */
+#define is_hbr_format(format) \
+	((format & AC_FMT_TYPE_NON_PCM) && (format & AC_FMT_CHAN_MASK) == 7)
+
+static int hdmi_setup_stream(struct hda_codec *codec, hda_nid_t cvt_nid,
+			      hda_nid_t pin_nid, u32 stream_tag, int format)
+{
+	int pinctl;
+	int new_pinctl = 0;
+
+	if (snd_hda_query_pin_caps(codec, pin_nid) & AC_PINCAP_HBR) {
+		pinctl = snd_hda_codec_read(codec, pin_nid, 0,
+					    AC_VERB_GET_PIN_WIDGET_CONTROL, 0);
+
+		new_pinctl = pinctl & ~AC_PINCTL_EPT;
+		if (is_hbr_format(format))
+			new_pinctl |= AC_PINCTL_EPT_HBR;
+		else
+			new_pinctl |= AC_PINCTL_EPT_NATIVE;
+
+		snd_printdd("hdmi_setup_stream: "
+			    "NID=0x%x, %spinctl=0x%x\n",
+			    pin_nid,
+			    pinctl == new_pinctl ? "" : "new-",
+			    new_pinctl);
+
+		if (pinctl != new_pinctl)
+			snd_hda_codec_write(codec, pin_nid, 0,
+					    AC_VERB_SET_PIN_WIDGET_CONTROL,
+					    new_pinctl);
+
+	}
+	if (is_hbr_format(format) && !new_pinctl) {
+		snd_printdd("hdmi_setup_stream: HBR is not supported\n");
+		return -EINVAL;
+	}
+
+	snd_hda_codec_setup_stream(codec, cvt_nid, stream_tag, 0, format);
+	return 0;
+}
+
+/*
+ * HDA PCM callbacks
+ */
+static int hdmi_pcm_open(struct hda_pcm_stream *hinfo,
+			 struct hda_codec *codec,
+			 struct snd_pcm_substream *substream)
+{
+	struct hdmi_spec *spec = codec->spec;
+	struct snd_pcm_runtime *runtime = substream->runtime;
+	int pin_idx, cvt_idx, mux_idx = 0;
+	struct hdmi_spec_per_pin *per_pin;
+	struct hdmi_eld *eld;
+	struct hdmi_spec_per_cvt *per_cvt = NULL;
+	int pinctl;
+
+	/* Validate hinfo */
+	pin_idx = hinfo_to_pin_index(spec, hinfo);
+	if (snd_BUG_ON(pin_idx < 0))
+		return -EINVAL;
+	per_pin = &spec->pins[pin_idx];
+	eld = &per_pin->sink_eld;
+
+	/* Dynamically assign converter to stream */
+	for (cvt_idx = 0; cvt_idx < spec->num_cvts; cvt_idx++) {
+		per_cvt = &spec->cvts[cvt_idx];
+
+		/* Must not already be assigned */
+		if (per_cvt->assigned)
+			continue;
+		/* Must be in pin's mux's list of converters */
+		for (mux_idx = 0; mux_idx < per_pin->num_mux_nids; mux_idx++)
+			if (per_pin->mux_nids[mux_idx] == per_cvt->cvt_nid)
+				break;
+		/* Not in mux list */
+		if (mux_idx == per_pin->num_mux_nids)
+			continue;
+		break;
+	}
+	/* No free converters */
+	if (cvt_idx == spec->num_cvts)
+		return -ENODEV;
+
+	/* Claim converter */
+	per_cvt->assigned = 1;
+	hinfo->nid = per_cvt->cvt_nid;
+
+	snd_hda_codec_write(codec, per_pin->pin_nid, 0,
+			    AC_VERB_SET_CONNECT_SEL,
+			    mux_idx);
+	pinctl = snd_hda_codec_read(codec, per_pin->pin_nid, 0,
+				    AC_VERB_GET_PIN_WIDGET_CONTROL, 0);
+	snd_hda_codec_write(codec, per_pin->pin_nid, 0,
+			    AC_VERB_SET_PIN_WIDGET_CONTROL,
+			    pinctl | PIN_OUT);
+	snd_hda_spdif_ctls_assign(codec, pin_idx, per_cvt->cvt_nid);
+
+	/* Initially set the converter's capabilities */
+	hinfo->channels_min = per_cvt->channels_min;
+	hinfo->channels_max = per_cvt->channels_max;
+	hinfo->rates = per_cvt->rates;
+	hinfo->formats = per_cvt->formats;
+	hinfo->maxbps = per_cvt->maxbps;
+
+	/* Restrict capabilities by ELD if this isn't disabled */
+	if (!static_hdmi_pcm && eld->eld_valid) {
+		snd_hdmi_eld_update_pcm_info(eld, hinfo);
+		if (hinfo->channels_min > hinfo->channels_max ||
+		    !hinfo->rates || !hinfo->formats)
+			return -ENODEV;
+	}
+
+	/* Store the updated parameters */
+	runtime->hw.channels_min = hinfo->channels_min;
+	runtime->hw.channels_max = hinfo->channels_max;
+	runtime->hw.formats = hinfo->formats;
+	runtime->hw.rates = hinfo->rates;
+
+	snd_pcm_hw_constraint_step(substream->runtime, 0,
+				   SNDRV_PCM_HW_PARAM_CHANNELS, 2);
+	return 0;
+}
+
+/*
+ * HDA/HDMI auto parsing
+ */
+static int hdmi_read_pin_conn(struct hda_codec *codec, int pin_idx)
+{
+	struct hdmi_spec *spec = codec->spec;
+	struct hdmi_spec_per_pin *per_pin = &spec->pins[pin_idx];
+	hda_nid_t pin_nid = per_pin->pin_nid;
+
+	if (!(get_wcaps(codec, pin_nid) & AC_WCAP_CONN_LIST)) {
+		snd_printk(KERN_WARNING
+			   "HDMI: pin %d wcaps %#x "
+			   "does not support connection list\n",
+			   pin_nid, get_wcaps(codec, pin_nid));
+		return -EINVAL;
+	}
+
+	per_pin->num_mux_nids = snd_hda_get_connections(codec, pin_nid,
+							per_pin->mux_nids,
+							HDA_MAX_CONNECTIONS);
+
+	return 0;
+}
+
+static void hdmi_present_sense(struct hdmi_spec_per_pin *per_pin, int repoll)
+{
+	struct hda_codec *codec = per_pin->codec;
+	struct hdmi_eld *eld = &per_pin->sink_eld;
+	hda_nid_t pin_nid = per_pin->pin_nid;
+	/*
+	 * Always execute a GetPinSense verb here, even when called from
+	 * hdmi_intrinsic_event; for some NVIDIA HW, the unsolicited
+	 * response's PD bit is not the real PD value, but indicates that
+	 * the real PD value changed. An older version of the HD-audio
+	 * specification worked this way. Hence, we just ignore the data in
+	 * the unsolicited response to avoid custom WARs.
+	 */
+	int present = snd_hda_pin_sense(codec, pin_nid);
+	bool eld_valid = false;
+
+	memset(eld, 0, offsetof(struct hdmi_eld, eld_buffer));
+
+	eld->monitor_present	= !!(present & AC_PINSENSE_PRESENCE);
+	if (eld->monitor_present)
+		eld_valid	= !!(present & AC_PINSENSE_ELDV);
+
+	_snd_printd(SND_PR_VERBOSE,
+		"HDMI status: Codec=%d Pin=%d Presence_Detect=%d ELD_Valid=%d\n",
+		codec->addr, pin_nid, eld->monitor_present, eld_valid);
+
+	if (eld_valid) {
+		if (!snd_hdmi_get_eld(eld, codec, pin_nid))
+			snd_hdmi_show_eld(eld);
+		else if (repoll) {
+			queue_delayed_work(codec->bus->workq,
+					   &per_pin->work,
+					   msecs_to_jiffies(300));
+		}
+	}
+}
+
+static void hdmi_repoll_eld(struct work_struct *work)
+{
+	struct hdmi_spec_per_pin *per_pin =
+	container_of(to_delayed_work(work), struct hdmi_spec_per_pin, work);
+
+	if (per_pin->repoll_count++ > 6)
+		per_pin->repoll_count = 0;
+
+	hdmi_present_sense(per_pin, per_pin->repoll_count);
+}
+
+static int hdmi_add_pin(struct hda_codec *codec, hda_nid_t pin_nid)
+{
+	struct hdmi_spec *spec = codec->spec;
+	unsigned int caps, config;
+	int pin_idx;
+	struct hdmi_spec_per_pin *per_pin;
+	int err;
+
+	caps = snd_hda_param_read(codec, pin_nid, AC_PAR_PIN_CAP);
+	if (!(caps & (AC_PINCAP_HDMI | AC_PINCAP_DP)))
+		return 0;
+
+	config = snd_hda_codec_read(codec, pin_nid, 0,
+				AC_VERB_GET_CONFIG_DEFAULT, 0);
+	if (get_defcfg_connect(config) == AC_JACK_PORT_NONE)
+		return 0;
+
+	if (snd_BUG_ON(spec->num_pins >= MAX_HDMI_PINS))
+		return -E2BIG;
+
+	pin_idx = spec->num_pins;
+	per_pin = &spec->pins[pin_idx];
+
+	per_pin->pin_nid = pin_nid;
+
+	err = hdmi_read_pin_conn(codec, pin_idx);
+	if (err < 0)
+		return err;
+
+	spec->num_pins++;
+
+	return 0;
+}
+
+static int hdmi_add_cvt(struct hda_codec *codec, hda_nid_t cvt_nid)
+{
+	struct hdmi_spec *spec = codec->spec;
+	int cvt_idx;
+	struct hdmi_spec_per_cvt *per_cvt;
+	unsigned int chans;
+	int err;
+
+	if (snd_BUG_ON(spec->num_cvts >= MAX_HDMI_CVTS))
+		return -E2BIG;
+
+	chans = get_wcaps(codec, cvt_nid);
+	chans = get_wcaps_channels(chans);
+
+	cvt_idx = spec->num_cvts;
+	per_cvt = &spec->cvts[cvt_idx];
+
+	per_cvt->cvt_nid = cvt_nid;
+	per_cvt->channels_min = 2;
+	if (chans <= 16)
+		per_cvt->channels_max = chans;
+
+	err = snd_hda_query_supported_pcm(codec, cvt_nid,
+					  &per_cvt->rates,
+					  &per_cvt->formats,
+					  &per_cvt->maxbps);
+	if (err < 0)
+		return err;
+
+	spec->num_cvts++;
+
+	return 0;
+}
+
+static int hdmi_parse_codec(struct hda_codec *codec)
+{
+	hda_nid_t nid;
+	int i, nodes;
+
+	nodes = snd_hda_get_sub_nodes(codec, codec->afg, &nid);
+	if (!nid || nodes < 0) {
+		snd_printk(KERN_WARNING "HDMI: failed to get afg sub nodes\n");
+		return -EINVAL;
+	}
+
+	for (i = 0; i < nodes; i++, nid++) {
+		unsigned int caps;
+		unsigned int type;
+
+		caps = snd_hda_param_read(codec, nid, AC_PAR_AUDIO_WIDGET_CAP);
+		type = get_wcaps_type(caps);
+
+		if (!(caps & AC_WCAP_DIGITAL))
+			continue;
+
+		switch (type) {
+		case AC_WID_AUD_OUT:
+			hdmi_add_cvt(codec, nid);
+			break;
+		case AC_WID_PIN:
+			hdmi_add_pin(codec, nid);
+			break;
+		}
+	}
+
+	/*
+	 * G45/IbexPeak don't support EPSS: the unsolicited pin hot plug event
+	 * can be lost and presence sense verb will become inaccurate if the
+	 * HDA link is powered off at hot plug or hw initialization time.
+	 */
+#ifdef CONFIG_SND_HDA_POWER_SAVE
+	if (!(snd_hda_param_read(codec, codec->afg, AC_PAR_POWER_STATE) &
+	      AC_PWRST_EPSS))
+		codec->bus->power_keep_link_on = 1;
+#endif
+
+	return 0;
+}
+
+/*
+ */
+static char *get_hdmi_pcm_name(int idx)
+{
+	static char names[MAX_HDMI_PINS][8];
+	sprintf(&names[idx][0], "HDMI %d", idx);
+	return &names[idx][0];
+}
+
+/*
+ * HDMI callbacks
+ */
+
+static int generic_hdmi_playback_pcm_prepare(struct hda_pcm_stream *hinfo,
+					   struct hda_codec *codec,
+					   unsigned int stream_tag,
+					   unsigned int format,
+					   struct snd_pcm_substream *substream)
+{
+	hda_nid_t cvt_nid = hinfo->nid;
+	struct hdmi_spec *spec = codec->spec;
+	int pin_idx = hinfo_to_pin_index(spec, hinfo);
+	hda_nid_t pin_nid = spec->pins[pin_idx].pin_nid;
+
+	hdmi_set_channel_count(codec, cvt_nid, substream->runtime->channels);
+
+	hdmi_setup_audio_infoframe(codec, pin_idx, substream);
+
+	return hdmi_setup_stream(codec, cvt_nid, pin_nid, stream_tag, format);
+}
+
+static int generic_hdmi_playback_pcm_cleanup(struct hda_pcm_stream *hinfo,
+					     struct hda_codec *codec,
+					     struct snd_pcm_substream *substream)
+{
+	struct hdmi_spec *spec = codec->spec;
+	int cvt_idx, pin_idx;
+	struct hdmi_spec_per_cvt *per_cvt;
+	struct hdmi_spec_per_pin *per_pin;
+	int pinctl;
+
+	snd_hda_codec_cleanup_stream(codec, hinfo->nid);
+
+	if (hinfo->nid) {
+		cvt_idx = cvt_nid_to_cvt_index(spec, hinfo->nid);
+		if (snd_BUG_ON(cvt_idx < 0))
+			return -EINVAL;
+		per_cvt = &spec->cvts[cvt_idx];
+
+		snd_BUG_ON(!per_cvt->assigned);
+		per_cvt->assigned = 0;
+		hinfo->nid = 0;
+
+		pin_idx = hinfo_to_pin_index(spec, hinfo);
+		if (snd_BUG_ON(pin_idx < 0))
+			return -EINVAL;
+		per_pin = &spec->pins[pin_idx];
+
+		pinctl = snd_hda_codec_read(codec, per_pin->pin_nid, 0,
+					    AC_VERB_GET_PIN_WIDGET_CONTROL, 0);
+		snd_hda_codec_write(codec, per_pin->pin_nid, 0,
+				    AC_VERB_SET_PIN_WIDGET_CONTROL,
+				    pinctl & ~PIN_OUT);
+		snd_hda_spdif_ctls_unassign(codec, pin_idx);
+	}
+
+	return 0;
+}
+
+static const struct hda_pcm_ops generic_ops = {
+	.open = hdmi_pcm_open,
+	.prepare = generic_hdmi_playback_pcm_prepare,
+	.cleanup = generic_hdmi_playback_pcm_cleanup,
+};
+
+static int generic_hdmi_build_pcms(struct hda_codec *codec)
+{
+	struct hdmi_spec *spec = codec->spec;
+	int pin_idx;
+
+	for (pin_idx = 0; pin_idx < spec->num_pins; pin_idx++) {
+		struct hda_pcm *info;
+		struct hda_pcm_stream *pstr;
+
+		info = &spec->pcm_rec[pin_idx];
+		info->name = get_hdmi_pcm_name(pin_idx);
+		info->pcm_type = HDA_PCM_TYPE_HDMI;
+
+		pstr = &info->stream[SNDRV_PCM_STREAM_PLAYBACK];
+		pstr->substreams = 1;
+		pstr->ops = generic_ops;
+		/* other pstr fields are set in open */
+	}
+
+	codec->num_pcms = spec->num_pins;
+	codec->pcm_info = spec->pcm_rec;
+
+	return 0;
+}
+
+static int generic_hdmi_build_jack(struct hda_codec *codec, int pin_idx)
+{
+	char hdmi_str[32] = "HDMI/DP";
+	struct hdmi_spec *spec = codec->spec;
+	struct hdmi_spec_per_pin *per_pin = &spec->pins[pin_idx];
+	int pcmdev = spec->pcm_rec[pin_idx].device;
+
+	if (pcmdev > 0)
+		sprintf(hdmi_str + strlen(hdmi_str), ",pcm=%d", pcmdev);
+
+	return snd_hda_jack_add_kctl(codec, per_pin->pin_nid, hdmi_str, 0);
+}
+
+static int generic_hdmi_build_controls(struct hda_codec *codec)
+{
+	struct hdmi_spec *spec = codec->spec;
+	int err;
+	int pin_idx;
+
+	for (pin_idx = 0; pin_idx < spec->num_pins; pin_idx++) {
+		struct hdmi_spec_per_pin *per_pin = &spec->pins[pin_idx];
+
+		err = generic_hdmi_build_jack(codec, pin_idx);
+		if (err < 0)
+			return err;
+
+		err = snd_hda_create_spdif_out_ctls(codec,
+						    per_pin->pin_nid,
+						    per_pin->mux_nids[0]);
+		if (err < 0)
+			return err;
+		snd_hda_spdif_ctls_unassign(codec, pin_idx);
+
+		/* add control for ELD Bytes */
+		err = hdmi_create_eld_ctl(codec,
+					pin_idx,
+					spec->pcm_rec[pin_idx].device);
+
+		if (err < 0)
+			return err;
+
+		hdmi_present_sense(per_pin, 0);
+	}
+
+	return 0;
+}
+
+static int generic_hdmi_init(struct hda_codec *codec)
+{
+	struct hdmi_spec *spec = codec->spec;
+	int pin_idx;
+
+	for (pin_idx = 0; pin_idx < spec->num_pins; pin_idx++) {
+		struct hdmi_spec_per_pin *per_pin = &spec->pins[pin_idx];
+		hda_nid_t pin_nid = per_pin->pin_nid;
+		struct hdmi_eld *eld = &per_pin->sink_eld;
+
+		hdmi_init_pin(codec, pin_nid);
+		snd_hda_jack_detect_enable(codec, pin_nid, pin_nid);
+
+		per_pin->codec = codec;
+		INIT_DELAYED_WORK(&per_pin->work, hdmi_repoll_eld);
+		snd_hda_eld_proc_new(codec, eld, pin_idx);
+	}
+	snd_hda_jack_report_sync(codec);
+	return 0;
+}
+
+static void generic_hdmi_free(struct hda_codec *codec)
+{
+	struct hdmi_spec *spec = codec->spec;
+	int pin_idx;
+
+	for (pin_idx = 0; pin_idx < spec->num_pins; pin_idx++) {
+		struct hdmi_spec_per_pin *per_pin = &spec->pins[pin_idx];
+		struct hdmi_eld *eld = &per_pin->sink_eld;
+
+		cancel_delayed_work(&per_pin->work);
+		snd_hda_eld_proc_free(codec, eld);
+	}
+
+	flush_workqueue(codec->bus->workq);
+	kfree(spec);
+}
+
+static const struct hda_codec_ops generic_hdmi_patch_ops = {
+	.init			= generic_hdmi_init,
+	.free			= generic_hdmi_free,
+	.build_pcms		= generic_hdmi_build_pcms,
+	.build_controls		= generic_hdmi_build_controls,
+	.unsol_event		= hdmi_unsol_event,
+};
+
+static int patch_generic_hdmi(struct hda_codec *codec)
+{
+	struct hdmi_spec *spec;
+
+	spec = kzalloc(sizeof(*spec), GFP_KERNEL);
+	if (spec == NULL)
+		return -ENOMEM;
+
+	codec->spec = spec;
+	if (hdmi_parse_codec(codec) < 0) {
+		codec->spec = NULL;
+		kfree(spec);
+		return -EINVAL;
+	}
+	codec->patch_ops = generic_hdmi_patch_ops;
+
+	init_channel_allocations();
+
+	return 0;
+}
+
+/*
+ * Shared non-generic implementations
+ */
+
+static int simple_playback_build_pcms(struct hda_codec *codec)
+{
+	struct hdmi_spec *spec = codec->spec;
+	struct hda_pcm *info = spec->pcm_rec;
+	int i;
+
+	codec->num_pcms = spec->num_cvts;
+	codec->pcm_info = info;
+
+	for (i = 0; i < codec->num_pcms; i++, info++) {
+		unsigned int chans;
+		struct hda_pcm_stream *pstr;
+
+		chans = get_wcaps(codec, spec->cvts[i].cvt_nid);
+		chans = get_wcaps_channels(chans);
+
+		info->name = get_hdmi_pcm_name(i);
+		info->pcm_type = HDA_PCM_TYPE_HDMI;
+		pstr = &info->stream[SNDRV_PCM_STREAM_PLAYBACK];
+		snd_BUG_ON(!spec->pcm_playback);
+		*pstr = *spec->pcm_playback;
+		pstr->nid = spec->cvts[i].cvt_nid;
+		if (pstr->channels_max <= 2 && chans && chans <= 16)
+			pstr->channels_max = chans;
+	}
+
+	return 0;
+}
+
+static int simple_playback_build_controls(struct hda_codec *codec)
+{
+	struct hdmi_spec *spec = codec->spec;
+	int err;
+	int i;
+
+	for (i = 0; i < codec->num_pcms; i++) {
+		err = snd_hda_create_spdif_out_ctls(codec,
+						    spec->cvts[i].cvt_nid,
+						    spec->cvts[i].cvt_nid);
+		if (err < 0)
+			return err;
+	}
+
+	return 0;
+}
+
+static void simple_playback_free(struct hda_codec *codec)
+{
+	struct hdmi_spec *spec = codec->spec;
+
+	kfree(spec);
+}
+
+/*
+ * Nvidia specific implementations
+ */
+
+#define Nv_VERB_SET_Channel_Allocation          0xF79
+#define Nv_VERB_SET_Info_Frame_Checksum         0xF7A
+#define Nv_VERB_SET_Audio_Protection_On         0xF98
+#define Nv_VERB_SET_Audio_Protection_Off        0xF99
+
+#define nvhdmi_master_con_nid_7x	0x04
+#define nvhdmi_master_pin_nid_7x	0x05
+
+static const hda_nid_t nvhdmi_con_nids_7x[4] = {
+	/*front, rear, clfe, rear_surr */
+	0x6, 0x8, 0xa, 0xc,
+};
+
+static const struct hda_verb nvhdmi_basic_init_7x[] = {
+	/* set audio protect on */
+	{ 0x1, Nv_VERB_SET_Audio_Protection_On, 0x1},
+	/* enable digital output on pin widget */
+	{ 0x5, AC_VERB_SET_PIN_WIDGET_CONTROL, PIN_OUT | 0x5 },
+	{ 0x7, AC_VERB_SET_PIN_WIDGET_CONTROL, PIN_OUT | 0x5 },
+	{ 0x9, AC_VERB_SET_PIN_WIDGET_CONTROL, PIN_OUT | 0x5 },
+	{ 0xb, AC_VERB_SET_PIN_WIDGET_CONTROL, PIN_OUT | 0x5 },
+	{ 0xd, AC_VERB_SET_PIN_WIDGET_CONTROL, PIN_OUT | 0x5 },
+	{} /* terminator */
+};
+
+#ifdef LIMITED_RATE_FMT_SUPPORT
+/* support only the safe format and rate */
+#define SUPPORTED_RATES		SNDRV_PCM_RATE_48000
+#define SUPPORTED_MAXBPS	16
+#define SUPPORTED_FORMATS	SNDRV_PCM_FMTBIT_S16_LE
+#else
+/* support all rates and formats */
+#define SUPPORTED_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 SUPPORTED_MAXBPS	24
+#define SUPPORTED_FORMATS \
+	(SNDRV_PCM_FMTBIT_S16_LE | SNDRV_PCM_FMTBIT_S32_LE)
+#endif
+
+static int nvhdmi_7x_init(struct hda_codec *codec)
+{
+	snd_hda_sequence_write(codec, nvhdmi_basic_init_7x);
+	return 0;
+}
+
+static unsigned int channels_2_6_8[] = {
+	2, 6, 8
+};
+
+static unsigned int channels_2_8[] = {
+	2, 8
+};
+
+static struct snd_pcm_hw_constraint_list hw_constraints_2_6_8_channels = {
+	.count = ARRAY_SIZE(channels_2_6_8),
+	.list = channels_2_6_8,
+	.mask = 0,
+};
+
+static struct snd_pcm_hw_constraint_list hw_constraints_2_8_channels = {
+	.count = ARRAY_SIZE(channels_2_8),
+	.list = channels_2_8,
+	.mask = 0,
+};
+
+static int simple_playback_pcm_open(struct hda_pcm_stream *hinfo,
+				    struct hda_codec *codec,
+				    struct snd_pcm_substream *substream)
+{
+	struct hdmi_spec *spec = codec->spec;
+	struct snd_pcm_hw_constraint_list *hw_constraints_channels = NULL;
+
+	switch (codec->preset->id) {
+	case 0x10de0002:
+	case 0x10de0003:
+	case 0x10de0005:
+	case 0x10de0006:
+		hw_constraints_channels = &hw_constraints_2_8_channels;
+		break;
+	case 0x10de0007:
+		hw_constraints_channels = &hw_constraints_2_6_8_channels;
+		break;
+	default:
+		break;
+	}
+
+	if (hw_constraints_channels != NULL) {
+		snd_pcm_hw_constraint_list(substream->runtime, 0,
+				SNDRV_PCM_HW_PARAM_CHANNELS,
+				hw_constraints_channels);
+	} else {
+		snd_pcm_hw_constraint_step(substream->runtime, 0,
+					   SNDRV_PCM_HW_PARAM_CHANNELS, 2);
+	}
+
+	return snd_hda_multi_out_dig_open(codec, &spec->multiout);
+}
+
+static int simple_playback_pcm_close(struct hda_pcm_stream *hinfo,
+				     struct hda_codec *codec,
+				     struct snd_pcm_substream *substream)
+{
+	struct hdmi_spec *spec = codec->spec;
+	return snd_hda_multi_out_dig_close(codec, &spec->multiout);
+}
+
+static int simple_playback_pcm_prepare(struct hda_pcm_stream *hinfo,
+				       struct hda_codec *codec,
+				       unsigned int stream_tag,
+				       unsigned int format,
+				       struct snd_pcm_substream *substream)
+{
+	struct hdmi_spec *spec = codec->spec;
+	return snd_hda_multi_out_dig_prepare(codec, &spec->multiout,
+					     stream_tag, format, substream);
+}
+
+static void nvhdmi_8ch_7x_set_info_frame_parameters(struct hda_codec *codec,
+						    int channels)
+{
+	unsigned int chanmask;
+	int chan = channels ? (channels - 1) : 1;
+
+	switch (channels) {
+	default:
+	case 0:
+	case 2:
+		chanmask = 0x00;
+		break;
+	case 4:
+		chanmask = 0x08;
+		break;
+	case 6:
+		chanmask = 0x0b;
+		break;
+	case 8:
+		chanmask = 0x13;
+		break;
+	}
+
+	/* Set the audio infoframe channel allocation and checksum fields.  The
+	 * channel count is computed implicitly by the hardware. */
+	snd_hda_codec_write(codec, 0x1, 0,
+			Nv_VERB_SET_Channel_Allocation, chanmask);
+
+	snd_hda_codec_write(codec, 0x1, 0,
+			Nv_VERB_SET_Info_Frame_Checksum,
+			(0x71 - chan - chanmask));
+}
+
+static int nvhdmi_8ch_7x_pcm_close(struct hda_pcm_stream *hinfo,
+				   struct hda_codec *codec,
+				   struct snd_pcm_substream *substream)
+{
+	struct hdmi_spec *spec = codec->spec;
+	int i;
+
+	snd_hda_codec_write(codec, nvhdmi_master_con_nid_7x,
+			0, AC_VERB_SET_CHANNEL_STREAMID, 0);
+	for (i = 0; i < 4; i++) {
+		/* set the stream id */
+		snd_hda_codec_write(codec, nvhdmi_con_nids_7x[i], 0,
+				AC_VERB_SET_CHANNEL_STREAMID, 0);
+		/* set the stream format */
+		snd_hda_codec_write(codec, nvhdmi_con_nids_7x[i], 0,
+				AC_VERB_SET_STREAM_FORMAT, 0);
+	}
+
+	/* The audio hardware sends a channel count of 0x7 (8ch) when all the
+	 * streams are disabled. */
+	nvhdmi_8ch_7x_set_info_frame_parameters(codec, 8);
+
+	return snd_hda_multi_out_dig_close(codec, &spec->multiout);
+}
+
+static int nvhdmi_8ch_7x_pcm_prepare(struct hda_pcm_stream *hinfo,
+				     struct hda_codec *codec,
+				     unsigned int stream_tag,
+				     unsigned int format,
+				     struct snd_pcm_substream *substream)
+{
+	int chs;
+	unsigned int dataDCC2, channel_id;
+	int i;
+	struct hdmi_spec *spec = codec->spec;
+	struct hda_spdif_out *spdif =
+		snd_hda_spdif_out_of_nid(codec, spec->cvts[0].cvt_nid);
+
+	mutex_lock(&codec->spdif_mutex);
+
+	chs = substream->runtime->channels;
+
+	dataDCC2 = 0x2;
+
+	/* turn off SPDIF once; otherwise the IEC958 bits won't be updated */
+	if (codec->spdif_status_reset && (spdif->ctls & AC_DIG1_ENABLE))
+		snd_hda_codec_write(codec,
+				nvhdmi_master_con_nid_7x,
+				0,
+				AC_VERB_SET_DIGI_CONVERT_1,
+				spdif->ctls & ~AC_DIG1_ENABLE & 0xff);
+
+	/* set the stream id */
+	snd_hda_codec_write(codec, nvhdmi_master_con_nid_7x, 0,
+			AC_VERB_SET_CHANNEL_STREAMID, (stream_tag << 4) | 0x0);
+
+	/* set the stream format */
+	snd_hda_codec_write(codec, nvhdmi_master_con_nid_7x, 0,
+			AC_VERB_SET_STREAM_FORMAT, format);
+
+	/* turn on again (if needed) */
+	/* enable and set the channel status audio/data flag */
+	if (codec->spdif_status_reset && (spdif->ctls & AC_DIG1_ENABLE)) {
+		snd_hda_codec_write(codec,
+				nvhdmi_master_con_nid_7x,
+				0,
+				AC_VERB_SET_DIGI_CONVERT_1,
+				spdif->ctls & 0xff);
+		snd_hda_codec_write(codec,
+				nvhdmi_master_con_nid_7x,
+				0,
+				AC_VERB_SET_DIGI_CONVERT_2, dataDCC2);
+	}
+
+	for (i = 0; i < 4; i++) {
+		if (chs == 2)
+			channel_id = 0;
+		else
+			channel_id = i * 2;
+
+		/* turn off SPDIF once;
+		 *otherwise the IEC958 bits won't be updated
+		 */
+		if (codec->spdif_status_reset &&
+		(spdif->ctls & AC_DIG1_ENABLE))
+			snd_hda_codec_write(codec,
+				nvhdmi_con_nids_7x[i],
+				0,
+				AC_VERB_SET_DIGI_CONVERT_1,
+				spdif->ctls & ~AC_DIG1_ENABLE & 0xff);
+		/* set the stream id */
+		snd_hda_codec_write(codec,
+				nvhdmi_con_nids_7x[i],
+				0,
+				AC_VERB_SET_CHANNEL_STREAMID,
+				(stream_tag << 4) | channel_id);
+		/* set the stream format */
+		snd_hda_codec_write(codec,
+				nvhdmi_con_nids_7x[i],
+				0,
+				AC_VERB_SET_STREAM_FORMAT,
+				format);
+		/* turn on again (if needed) */
+		/* enable and set the channel status audio/data flag */
+		if (codec->spdif_status_reset &&
+		(spdif->ctls & AC_DIG1_ENABLE)) {
+			snd_hda_codec_write(codec,
+					nvhdmi_con_nids_7x[i],
+					0,
+					AC_VERB_SET_DIGI_CONVERT_1,
+					spdif->ctls & 0xff);
+			snd_hda_codec_write(codec,
+					nvhdmi_con_nids_7x[i],
+					0,
+					AC_VERB_SET_DIGI_CONVERT_2, dataDCC2);
+		}
+	}
+
+	nvhdmi_8ch_7x_set_info_frame_parameters(codec, chs);
+
+	mutex_unlock(&codec->spdif_mutex);
+	return 0;
+}
+
+static const struct hda_pcm_stream nvhdmi_pcm_playback_8ch_7x = {
+	.substreams = 1,
+	.channels_min = 2,
+	.channels_max = 8,
+	.nid = nvhdmi_master_con_nid_7x,
+	.rates = SUPPORTED_RATES,
+	.maxbps = SUPPORTED_MAXBPS,
+	.formats = SUPPORTED_FORMATS,
+	.ops = {
+		.open = simple_playback_pcm_open,
+		.close = nvhdmi_8ch_7x_pcm_close,
+		.prepare = nvhdmi_8ch_7x_pcm_prepare
+	},
+};
+
+static const struct hda_pcm_stream nvhdmi_pcm_playback_2ch = {
+	.substreams = 1,
+	.channels_min = 2,
+	.channels_max = 2,
+	.nid = nvhdmi_master_con_nid_7x,
+	.rates = SUPPORTED_RATES,
+	.maxbps = SUPPORTED_MAXBPS,
+	.formats = SUPPORTED_FORMATS,
+	.ops = {
+		.open = simple_playback_pcm_open,
+		.close = simple_playback_pcm_close,
+		.prepare = simple_playback_pcm_prepare
+	},
+};
+
+static const struct hda_codec_ops nvhdmi_patch_ops_8ch_7x = {
+	.build_controls = simple_playback_build_controls,
+	.build_pcms = simple_playback_build_pcms,
+	.init = nvhdmi_7x_init,
+	.free = simple_playback_free,
+};
+
+static const struct hda_codec_ops nvhdmi_patch_ops_2ch = {
+	.build_controls = simple_playback_build_controls,
+	.build_pcms = simple_playback_build_pcms,
+	.init = nvhdmi_7x_init,
+	.free = simple_playback_free,
+};
+
+static int patch_nvhdmi_2ch(struct hda_codec *codec)
+{
+	struct hdmi_spec *spec;
+
+	spec = kzalloc(sizeof(*spec), GFP_KERNEL);
+	if (spec == NULL)
+		return -ENOMEM;
+
+	codec->spec = spec;
+
+	spec->multiout.num_dacs = 0;  /* no analog */
+	spec->multiout.max_channels = 2;
+	spec->multiout.dig_out_nid = nvhdmi_master_con_nid_7x;
+	spec->num_cvts = 1;
+	spec->cvts[0].cvt_nid = nvhdmi_master_con_nid_7x;
+	spec->pcm_playback = &nvhdmi_pcm_playback_2ch;
+
+	codec->patch_ops = nvhdmi_patch_ops_2ch;
+
+	return 0;
+}
+
+static int patch_nvhdmi_8ch_7x(struct hda_codec *codec)
+{
+	struct hdmi_spec *spec;
+	int err = patch_nvhdmi_2ch(codec);
+
+	if (err < 0)
+		return err;
+	spec = codec->spec;
+	spec->multiout.max_channels = 8;
+	spec->pcm_playback = &nvhdmi_pcm_playback_8ch_7x;
+	codec->patch_ops = nvhdmi_patch_ops_8ch_7x;
+
+	/* Initialize the audio infoframe channel mask and checksum to something
+	 * valid */
+	nvhdmi_8ch_7x_set_info_frame_parameters(codec, 8);
+
+	return 0;
+}
+
+/*
+ * ATI-specific implementations
+ *
+ * FIXME: we may omit the whole this and use the generic code once after
+ * it's confirmed to work.
+ */
+
+#define ATIHDMI_CVT_NID		0x02	/* audio converter */
+#define ATIHDMI_PIN_NID		0x03	/* HDMI output pin */
+
+static int atihdmi_playback_pcm_prepare(struct hda_pcm_stream *hinfo,
+					struct hda_codec *codec,
+					unsigned int stream_tag,
+					unsigned int format,
+					struct snd_pcm_substream *substream)
+{
+	struct hdmi_spec *spec = codec->spec;
+	int chans = substream->runtime->channels;
+	int i, err;
+
+	err = simple_playback_pcm_prepare(hinfo, codec, stream_tag, format,
+					  substream);
+	if (err < 0)
+		return err;
+	snd_hda_codec_write(codec, spec->cvts[0].cvt_nid, 0,
+			    AC_VERB_SET_CVT_CHAN_COUNT, chans - 1);
+	/* FIXME: XXX */
+	for (i = 0; i < chans; i++) {
+		snd_hda_codec_write(codec, spec->cvts[0].cvt_nid, 0,
+				    AC_VERB_SET_HDMI_CHAN_SLOT,
+				    (i << 4) | i);
+	}
+	return 0;
+}
+
+static const struct hda_pcm_stream atihdmi_pcm_digital_playback = {
+	.substreams = 1,
+	.channels_min = 2,
+	.channels_max = 2,
+	.nid = ATIHDMI_CVT_NID,
+	.ops = {
+		.open = simple_playback_pcm_open,
+		.close = simple_playback_pcm_close,
+		.prepare = atihdmi_playback_pcm_prepare
+	},
+};
+
+static const struct hda_verb atihdmi_basic_init[] = {
+	/* enable digital output on pin widget */
+	{ 0x03, AC_VERB_SET_PIN_WIDGET_CONTROL, PIN_OUT },
+	{} /* terminator */
+};
+
+static int atihdmi_init(struct hda_codec *codec)
+{
+	struct hdmi_spec *spec = codec->spec;
+
+	snd_hda_sequence_write(codec, atihdmi_basic_init);
+	/* SI codec requires to unmute the pin */
+	if (get_wcaps(codec, spec->pins[0].pin_nid) & AC_WCAP_OUT_AMP)
+		snd_hda_codec_write(codec, spec->pins[0].pin_nid, 0,
+				    AC_VERB_SET_AMP_GAIN_MUTE,
+				    AMP_OUT_UNMUTE);
+	return 0;
+}
+
+static const struct hda_codec_ops atihdmi_patch_ops = {
+	.build_controls = simple_playback_build_controls,
+	.build_pcms = simple_playback_build_pcms,
+	.init = atihdmi_init,
+	.free = simple_playback_free,
+};
+
+
+static int patch_atihdmi(struct hda_codec *codec)
+{
+	struct hdmi_spec *spec;
+
+	spec = kzalloc(sizeof(*spec), GFP_KERNEL);
+	if (spec == NULL)
+		return -ENOMEM;
+
+	codec->spec = spec;
+
+	spec->multiout.num_dacs = 0;	  /* no analog */
+	spec->multiout.max_channels = 2;
+	spec->multiout.dig_out_nid = ATIHDMI_CVT_NID;
+	spec->num_cvts = 1;
+	spec->cvts[0].cvt_nid = ATIHDMI_CVT_NID;
+	spec->pins[0].pin_nid = ATIHDMI_PIN_NID;
+	spec->pcm_playback = &atihdmi_pcm_digital_playback;
+
+	codec->patch_ops = atihdmi_patch_ops;
+
+	return 0;
+}
+
+
+/*
+ * patch entries
+ */
+static const struct hda_codec_preset snd_hda_preset_hdmi[] = {
+{ .id = 0x1002793c, .name = "RS600 HDMI",	.patch = patch_atihdmi },
+{ .id = 0x10027919, .name = "RS600 HDMI",	.patch = patch_atihdmi },
+{ .id = 0x1002791a, .name = "RS690/780 HDMI",	.patch = patch_atihdmi },
+{ .id = 0x1002aa01, .name = "R6xx HDMI",	.patch = patch_generic_hdmi },
+{ .id = 0x10951390, .name = "SiI1390 HDMI",	.patch = patch_generic_hdmi },
+{ .id = 0x10951392, .name = "SiI1392 HDMI",	.patch = patch_generic_hdmi },
+{ .id = 0x17e80047, .name = "Chrontel HDMI",	.patch = patch_generic_hdmi },
+{ .id = 0x10de0002, .name = "MCP77/78 HDMI",	.patch = patch_nvhdmi_8ch_7x },
+{ .id = 0x10de0003, .name = "MCP77/78 HDMI",	.patch = patch_nvhdmi_8ch_7x },
+{ .id = 0x10de0005, .name = "MCP77/78 HDMI",	.patch = patch_nvhdmi_8ch_7x },
+{ .id = 0x10de0006, .name = "MCP77/78 HDMI",	.patch = patch_nvhdmi_8ch_7x },
+{ .id = 0x10de0007, .name = "MCP79/7A HDMI",	.patch = patch_nvhdmi_8ch_7x },
+{ .id = 0x10de000a, .name = "GPU 0a HDMI/DP",	.patch = patch_generic_hdmi },
+{ .id = 0x10de000b, .name = "GPU 0b HDMI/DP",	.patch = patch_generic_hdmi },
+{ .id = 0x10de000c, .name = "MCP89 HDMI",	.patch = patch_generic_hdmi },
+{ .id = 0x10de000d, .name = "GPU 0d HDMI/DP",	.patch = patch_generic_hdmi },
+{ .id = 0x10de0010, .name = "GPU 10 HDMI/DP",	.patch = patch_generic_hdmi },
+{ .id = 0x10de0011, .name = "GPU 11 HDMI/DP",	.patch = patch_generic_hdmi },
+{ .id = 0x10de0012, .name = "GPU 12 HDMI/DP",	.patch = patch_generic_hdmi },
+{ .id = 0x10de0013, .name = "GPU 13 HDMI/DP",	.patch = patch_generic_hdmi },
+{ .id = 0x10de0014, .name = "GPU 14 HDMI/DP",	.patch = patch_generic_hdmi },
+{ .id = 0x10de0015, .name = "GPU 15 HDMI/DP",	.patch = patch_generic_hdmi },
+{ .id = 0x10de0016, .name = "GPU 16 HDMI/DP",	.patch = patch_generic_hdmi },
+/* 17 is known to be absent */
+{ .id = 0x10de0018, .name = "GPU 18 HDMI/DP",	.patch = patch_generic_hdmi },
+{ .id = 0x10de0019, .name = "GPU 19 HDMI/DP",	.patch = patch_generic_hdmi },
+{ .id = 0x10de001a, .name = "GPU 1a HDMI/DP",	.patch = patch_generic_hdmi },
+{ .id = 0x10de001b, .name = "GPU 1b HDMI/DP",	.patch = patch_generic_hdmi },
+{ .id = 0x10de001c, .name = "GPU 1c HDMI/DP",	.patch = patch_generic_hdmi },
+{ .id = 0x10de0040, .name = "GPU 40 HDMI/DP",	.patch = patch_generic_hdmi },
+{ .id = 0x10de0041, .name = "GPU 41 HDMI/DP",	.patch = patch_generic_hdmi },
+{ .id = 0x10de0042, .name = "GPU 42 HDMI/DP",	.patch = patch_generic_hdmi },
+{ .id = 0x10de0043, .name = "GPU 43 HDMI/DP",	.patch = patch_generic_hdmi },
+{ .id = 0x10de0044, .name = "GPU 44 HDMI/DP",	.patch = patch_generic_hdmi },
+{ .id = 0x10de0067, .name = "MCP67 HDMI",	.patch = patch_nvhdmi_2ch },
+{ .id = 0x10de8001, .name = "MCP73 HDMI",	.patch = patch_nvhdmi_2ch },
+{ .id = 0x80860054, .name = "IbexPeak HDMI",	.patch = patch_generic_hdmi },
+{ .id = 0x80862801, .name = "Bearlake HDMI",	.patch = patch_generic_hdmi },
+{ .id = 0x80862802, .name = "Cantiga HDMI",	.patch = patch_generic_hdmi },
+{ .id = 0x80862803, .name = "Eaglelake HDMI",	.patch = patch_generic_hdmi },
+{ .id = 0x80862804, .name = "IbexPeak HDMI",	.patch = patch_generic_hdmi },
+{ .id = 0x80862805, .name = "CougarPoint HDMI",	.patch = patch_generic_hdmi },
+{ .id = 0x80862806, .name = "PantherPoint HDMI", .patch = patch_generic_hdmi },
+{ .id = 0x80862880, .name = "CedarTrail HDMI",	.patch = patch_generic_hdmi },
+{ .id = 0x808629fb, .name = "Crestline HDMI",	.patch = patch_generic_hdmi },
+{} /* terminator */
+};
+
+MODULE_ALIAS("snd-hda-codec-id:1002793c");
+MODULE_ALIAS("snd-hda-codec-id:10027919");
+MODULE_ALIAS("snd-hda-codec-id:1002791a");
+MODULE_ALIAS("snd-hda-codec-id:1002aa01");
+MODULE_ALIAS("snd-hda-codec-id:10951390");
+MODULE_ALIAS("snd-hda-codec-id:10951392");
+MODULE_ALIAS("snd-hda-codec-id:10de0002");
+MODULE_ALIAS("snd-hda-codec-id:10de0003");
+MODULE_ALIAS("snd-hda-codec-id:10de0005");
+MODULE_ALIAS("snd-hda-codec-id:10de0006");
+MODULE_ALIAS("snd-hda-codec-id:10de0007");
+MODULE_ALIAS("snd-hda-codec-id:10de000a");
+MODULE_ALIAS("snd-hda-codec-id:10de000b");
+MODULE_ALIAS("snd-hda-codec-id:10de000c");
+MODULE_ALIAS("snd-hda-codec-id:10de000d");
+MODULE_ALIAS("snd-hda-codec-id:10de0010");
+MODULE_ALIAS("snd-hda-codec-id:10de0011");
+MODULE_ALIAS("snd-hda-codec-id:10de0012");
+MODULE_ALIAS("snd-hda-codec-id:10de0013");
+MODULE_ALIAS("snd-hda-codec-id:10de0014");
+MODULE_ALIAS("snd-hda-codec-id:10de0015");
+MODULE_ALIAS("snd-hda-codec-id:10de0016");
+MODULE_ALIAS("snd-hda-codec-id:10de0018");
+MODULE_ALIAS("snd-hda-codec-id:10de0019");
+MODULE_ALIAS("snd-hda-codec-id:10de001a");
+MODULE_ALIAS("snd-hda-codec-id:10de001b");
+MODULE_ALIAS("snd-hda-codec-id:10de001c");
+MODULE_ALIAS("snd-hda-codec-id:10de0040");
+MODULE_ALIAS("snd-hda-codec-id:10de0041");
+MODULE_ALIAS("snd-hda-codec-id:10de0042");
+MODULE_ALIAS("snd-hda-codec-id:10de0043");
+MODULE_ALIAS("snd-hda-codec-id:10de0044");
+MODULE_ALIAS("snd-hda-codec-id:10de0067");
+MODULE_ALIAS("snd-hda-codec-id:10de8001");
+MODULE_ALIAS("snd-hda-codec-id:17e80047");
+MODULE_ALIAS("snd-hda-codec-id:80860054");
+MODULE_ALIAS("snd-hda-codec-id:80862801");
+MODULE_ALIAS("snd-hda-codec-id:80862802");
+MODULE_ALIAS("snd-hda-codec-id:80862803");
+MODULE_ALIAS("snd-hda-codec-id:80862804");
+MODULE_ALIAS("snd-hda-codec-id:80862805");
+MODULE_ALIAS("snd-hda-codec-id:80862806");
+MODULE_ALIAS("snd-hda-codec-id:80862880");
+MODULE_ALIAS("snd-hda-codec-id:808629fb");
+
+MODULE_LICENSE("GPL");
+MODULE_DESCRIPTION("HDMI HD-audio codec");
+MODULE_ALIAS("snd-hda-codec-intelhdmi");
+MODULE_ALIAS("snd-hda-codec-nvhdmi");
+MODULE_ALIAS("snd-hda-codec-atihdmi");
+
+static struct hda_codec_preset_list intel_list = {
+	.preset = snd_hda_preset_hdmi,
+	.owner = THIS_MODULE,
+};
+
+static int __init patch_hdmi_init(void)
+{
+	return snd_hda_add_codec_preset(&intel_list);
+}
+
+static void __exit patch_hdmi_exit(void)
+{
+	snd_hda_delete_codec_preset(&intel_list);
+}
+
+module_init(patch_hdmi_init)
+module_exit(patch_hdmi_exit)