ALSA: hdmi - merge common code for intelhdmi and nvhdmi

Create patch_hdmi.c to hold common code from intelhdmi and nvhdmi.

For now the patch_hdmi.c file is simply included by patch_intelhdmi.c
and patch_nvhdmi.c, and does not represent a real codec.

There are no behavior changes to intelhdmi. However nvhdmi made several
changes when copying code out of intelhdmi, which are all reverted in
this patch. Wei Ni confirmed that the reverted code actually works fine.

Tested-by: Wei Ni <[e-mail]>
Signed-off-by: Wu Fengguang <[e-mail]>
Signed-off-by: Takashi Iwai <[e-mail]>

sound/pci/hda/patch_hdmi.c

···
+/*
+ *
+ *  patch_hdmi.c - routines for HDMI/DisplayPort codecs
+ *
+ *  Copyright(c) 2008-2010 Intel Corporation. All rights reserved.
+ *
+ *  Authors:
+ *			Wu Fengguang <[e-mail]>
+ *
+ *  Maintained by:
+ *			Wu Fengguang <[e-mail]>
+ *
+ *  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.
+ */
+
+
+struct hdmi_spec {
+	int num_cvts;
+	int num_pins;
+	hda_nid_t cvt[MAX_HDMI_CVTS+1];  /* audio sources */
+	hda_nid_t pin[MAX_HDMI_PINS+1];  /* audio sinks */
+
+	/*
+	 * source connection for each pin
+	 */
+	hda_nid_t pin_cvt[MAX_HDMI_PINS+1];
+
+	/*
+	 * HDMI sink attached to each pin
+	 */
+	struct hdmi_eld sink_eld[MAX_HDMI_PINS];
+
+	/*
+	 * export one pcm per pipe
+	 */
+	struct hda_pcm	pcm_rec[MAX_HDMI_CVTS];
+
+	/*
+	 * nvhdmi specific
+	 */
+	struct hda_multi_out multiout;
+	unsigned int codec_type;
+};
+
+
+struct hdmi_audio_infoframe {
+	u8 type; /* 0x84 */
+	u8 ver;  /* 0x01 */
+	u8 len;  /* 0x0a */
+
+	u8 checksum;	/* PB0 */
+	u8 CC02_CT47;	/* CC in bits 0:2, CT in 4:7 */
+	u8 SS01_SF24;
+	u8 CXT04;
+	u8 CA;
+	u8 LFEPBL01_LSV36_DM_INH7;
+	u8 reserved[5];	/* PB6 - PB10 */
+};
+
+/*
+ * 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, 0x34, 0x43, 0xf2, 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_setup_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 hda_node_index(hda_nid_t *nids, hda_nid_t nid)
+{
+	int i;
+
+	for (i = 0; nids[i]; i++)
+		if (nids[i] == nid)
+			return i;
+
+	snd_printk(KERN_WARNING "HDMI: nid %d not registered\n", nid);
+	return -EINVAL;
+}
+
+static void hdmi_get_show_eld(struct hda_codec *codec, hda_nid_t pin_nid,
+			      struct hdmi_eld *eld)
+{
+	if (!snd_hdmi_get_eld(eld, codec, pin_nid))
+		snd_hdmi_show_eld(eld);
+}
+
+#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_enable_output(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);
+	/* Enable pin out */
+	snd_hda_codec_write(codec, pin_nid, 0,
+			    AC_VERB_SET_PIN_WIDGET_CONTROL, PIN_OUT);
+}
+
+static int hdmi_get_channel_count(struct hda_codec *codec, hda_nid_t nid)
+{
+	return 1 + snd_hda_codec_read(codec, nid, 0,
+					AC_VERB_GET_CVT_CHAN_COUNT, 0);
+}
+
+static void hdmi_set_channel_count(struct hda_codec *codec,
+				   hda_nid_t nid, int chs)
+{
+	if (chs != hdmi_get_channel_count(codec, nid))
+		snd_hda_codec_write(codec, 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_setup_channel_allocation(struct hda_codec *codec, hda_nid_t nid,
+					 struct hdmi_audio_infoframe *ai)
+{
+	struct hdmi_spec *spec = codec->spec;
+	struct hdmi_eld *eld;
+	int i;
+	int spk_mask = 0;
+	int channels = 1 + (ai->CC02_CT47 & 0x7);
+	char buf[SND_PRINT_CHANNEL_ALLOCATION_ADVISED_BUFSIZE];
+
+	/*
+	 * CA defaults to 0 for basic stereo audio
+	 */
+	if (channels <= 2)
+		return 0;
+
+	i = hda_node_index(spec->pin_cvt, nid);
+	if (i < 0)
+		return 0;
+	eld = &spec->sink_eld[i];
+
+	/*
+	 * HDMI sink's ELD info cannot always be retrieved for now, e.g.
+	 * in console or for audio devices. Assume the highest speakers
+	 * configuration, to _not_ prohibit multi-channel audio playback.
+	 */
+	if (!eld->spk_alloc)
+		eld->spk_alloc = 0xffff;
+
+	/*
+	 * 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) {
+			ai->CA = channel_allocations[i].ca_index;
+			break;
+		}
+	}
+
+	snd_print_channel_allocation(eld->spk_alloc, buf, sizeof(buf));
+	snd_printdd(KERN_INFO
+			"HDMI: select CA 0x%x for %d-channel allocation: %s\n",
+			ai->CA, channels, buf);
+
+	return ai->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,
+				       struct hdmi_audio_infoframe *ai)
+{
+	int i;
+	int ca = ai->CA;
+	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_INFO "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 *ai)
+{
+	u8 *bytes = (u8 *)ai;
+	u8 sum = 0;
+	int i;
+
+	ai->checksum = 0;
+
+	for (i = 0; i < sizeof(*ai); i++)
+		sum += bytes[i];
+
+	ai->checksum = -sum;
+}
+
+static void hdmi_fill_audio_infoframe(struct hda_codec *codec,
+				      hda_nid_t pin_nid,
+				      struct hdmi_audio_infoframe *ai)
+{
+	u8 *bytes = (u8 *)ai;
+	int i;
+
+	hdmi_debug_dip_size(codec, pin_nid);
+	hdmi_clear_dip_buffers(codec, pin_nid); /* be paranoid */
+
+	hdmi_checksum_audio_infoframe(ai);
+
+	hdmi_set_dip_index(codec, pin_nid, 0x0, 0x0);
+	for (i = 0; i < sizeof(*ai); i++)
+		hdmi_write_dip_byte(codec, pin_nid, bytes[i]);
+}
+
+static bool hdmi_infoframe_uptodate(struct hda_codec *codec, hda_nid_t pin_nid,
+				    struct hdmi_audio_infoframe *ai)
+{
+	u8 *bytes = (u8 *)ai;
+	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 < sizeof(*ai); i++) {
+		val = snd_hda_codec_read(codec, pin_nid, 0,
+					 AC_VERB_GET_HDMI_DIP_DATA, 0);
+		if (val != bytes[i])
+			return false;
+	}
+
+	return true;
+}
+
+static void hdmi_setup_audio_infoframe(struct hda_codec *codec, hda_nid_t nid,
+					struct snd_pcm_substream *substream)
+{
+	struct hdmi_spec *spec = codec->spec;
+	hda_nid_t pin_nid;
+	int i;
+	struct hdmi_audio_infoframe ai = {
+		.type		= 0x84,
+		.ver		= 0x01,
+		.len		= 0x0a,
+		.CC02_CT47	= substream->runtime->channels - 1,
+	};
+
+	hdmi_setup_channel_allocation(codec, nid, &ai);
+
+	for (i = 0; i < spec->num_pins; i++) {
+		if (spec->pin_cvt[i] != nid)
+			continue;
+		if (!spec->sink_eld[i].monitor_present)
+			continue;
+
+		pin_nid = spec->pin[i];
+		if (!hdmi_infoframe_uptodate(codec, pin_nid, &ai)) {
+			hdmi_setup_channel_mapping(codec, pin_nid, &ai);
+			hdmi_stop_infoframe_trans(codec, pin_nid);
+			hdmi_fill_audio_infoframe(codec, pin_nid, &ai);
+			hdmi_start_infoframe_trans(codec, pin_nid);
+		}
+	}
+}
+
+
+/*
+ * Unsolicited events
+ */
+
+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 pind = !!(res & AC_UNSOL_RES_PD);
+	int eldv = !!(res & AC_UNSOL_RES_ELDV);
+	int index;
+
+	printk(KERN_INFO
+		"HDMI hot plug event: Pin=%d Presence_Detect=%d ELD_Valid=%d\n",
+		tag, pind, eldv);
+
+	index = hda_node_index(spec->pin, tag);
+	if (index < 0)
+		return;
+
+	spec->sink_eld[index].monitor_present = pind;
+	spec->sink_eld[index].eld_valid = eldv;
+
+	if (pind && eldv) {
+		hdmi_get_show_eld(codec, spec->pin[index],
+				  &spec->sink_eld[index]);
+		/* TODO: do real things about ELD */
+	}
+}
+
+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: PIN=%d SUBTAG=0x%x CP_STATE=%d CP_READY=%d\n",
+		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)
+{
+	struct hdmi_spec *spec = codec->spec;
+	int tag = res >> AC_UNSOL_RES_TAG_SHIFT;
+	int subtag = (res & AC_UNSOL_RES_SUBTAG) >> AC_UNSOL_RES_SUBTAG_SHIFT;
+
+	if (hda_node_index(spec->pin, tag) < 0) {
+		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
+ */
+
+static void hdmi_setup_stream(struct hda_codec *codec, hda_nid_t nid,
+			      u32 stream_tag, int format)
+{
+	int tag;
+	int fmt;
+
+	tag = snd_hda_codec_read(codec, nid, 0, AC_VERB_GET_CONV, 0) >> 4;
+	fmt = snd_hda_codec_read(codec, nid, 0, AC_VERB_GET_STREAM_FORMAT, 0);
+
+	snd_printdd("hdmi_setup_stream: "
+		    "NID=0x%x, %sstream=0x%x, %sformat=0x%x\n",
+		    nid,
+		    tag == stream_tag ? "" : "new-",
+		    stream_tag,
+		    fmt == format ? "" : "new-",
+		    format);
+
+	if (tag != stream_tag)
+		snd_hda_codec_write(codec, nid, 0,
+				    AC_VERB_SET_CHANNEL_STREAMID,
+				    stream_tag << 4);
+	if (fmt != format)
+		snd_hda_codec_write(codec, nid, 0,
+				    AC_VERB_SET_STREAM_FORMAT, format);
+}
+
+/*
+ * HDA/HDMI auto parsing
+ */
+
+static int hdmi_read_pin_conn(struct hda_codec *codec, hda_nid_t pin_nid)
+{
+	struct hdmi_spec *spec = codec->spec;
+	hda_nid_t conn_list[HDA_MAX_CONNECTIONS];
+	int conn_len, curr;
+	int index;
+
+	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;
+	}
+
+	conn_len = snd_hda_get_connections(codec, pin_nid, conn_list,
+					   HDA_MAX_CONNECTIONS);
+	if (conn_len > 1)
+		curr = snd_hda_codec_read(codec, pin_nid, 0,
+					  AC_VERB_GET_CONNECT_SEL, 0);
+	else
+		curr = 0;
+
+	index = hda_node_index(spec->pin, pin_nid);
+	if (index < 0)
+		return -EINVAL;
+
+	spec->pin_cvt[index] = conn_list[curr];
+
+	return 0;
+}
+
+static void hdmi_present_sense(struct hda_codec *codec, hda_nid_t pin_nid,
+			       struct hdmi_eld *eld)
+{
+	int present = snd_hda_pin_sense(codec, pin_nid);
+
+	eld->monitor_present	= !!(present & AC_PINSENSE_PRESENCE);
+	eld->eld_valid		= !!(present & AC_PINSENSE_ELDV);
+
+	if (present & AC_PINSENSE_ELDV)
+		hdmi_get_show_eld(codec, pin_nid, eld);
+}
+
+static int hdmi_add_pin(struct hda_codec *codec, hda_nid_t pin_nid)
+{
+	struct hdmi_spec *spec = codec->spec;
+
+	if (spec->num_pins >= MAX_HDMI_PINS) {
+		snd_printk(KERN_WARNING
+			   "HDMI: no space for pin %d\n", pin_nid);
+		return -EINVAL;
+	}
+
+	hdmi_present_sense(codec, pin_nid, &spec->sink_eld[spec->num_pins]);
+
+	spec->pin[spec->num_pins] = pin_nid;
+	spec->num_pins++;
+
+	/*
+	 * It is assumed that converter nodes come first in the node list and
+	 * hence have been registered and usable now.
+	 */
+	return hdmi_read_pin_conn(codec, pin_nid);
+}
+
+static int hdmi_add_cvt(struct hda_codec *codec, hda_nid_t nid)
+{
+	struct hdmi_spec *spec = codec->spec;
+
+	if (spec->num_cvts >= MAX_HDMI_CVTS) {
+		snd_printk(KERN_WARNING
+			   "HDMI: no space for converter %d\n", nid);
+		return -EINVAL;
+	}
+
+	spec->cvt[spec->num_cvts] = nid;
+	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:
+			if (hdmi_add_cvt(codec, nid) < 0)
+				return -EINVAL;
+			break;
+		case AC_WID_PIN:
+			caps = snd_hda_param_read(codec, nid, AC_PAR_PIN_CAP);
+			if (!(caps & (AC_PINCAP_HDMI | AC_PINCAP_DP)))
+				continue;
+			if (hdmi_add_pin(codec, nid) < 0)
+				return -EINVAL;
+			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;
+}
+

sound/pci/hda/patch_intelhdmi.c

···
  *
  * The HDA correspondence of pipes/ports are converter/pin nodes.
  */
-#define INTEL_HDMI_CVTS	2
-#define INTEL_HDMI_PINS	3
+#define MAX_HDMI_CVTS	2
+#define MAX_HDMI_PINS	3
 
-static char *intel_hdmi_pcm_names[INTEL_HDMI_CVTS] = {
+#include "patch_hdmi.c"
+
+static char *intel_hdmi_pcm_names[MAX_HDMI_CVTS] = {
 	"INTEL HDMI 0",
 	"INTEL HDMI 1",
 };
 
-struct intel_hdmi_spec {
-	int num_cvts;
-	int num_pins;
-	hda_nid_t cvt[INTEL_HDMI_CVTS+1];  /* audio sources */
-	hda_nid_t pin[INTEL_HDMI_PINS+1];  /* audio sinks */
-
-	/*
-	 * source connection for each pin
-	 */
-	hda_nid_t pin_cvt[INTEL_HDMI_PINS+1];
-
-	/*
-	 * HDMI sink attached to each pin
-	 */
-	struct hdmi_eld sink_eld[INTEL_HDMI_PINS];
-
-	/*
-	 * export one pcm per pipe
-	 */
-	struct hda_pcm	pcm_rec[INTEL_HDMI_CVTS];
-};
-
-struct hdmi_audio_infoframe {
-	u8 type; /* 0x84 */
-	u8 ver;  /* 0x01 */
-	u8 len;  /* 0x0a */
-
-	u8 checksum;	/* PB0 */
-	u8 CC02_CT47;	/* CC in bits 0:2, CT in 4:7 */
-	u8 SS01_SF24;
-	u8 CXT04;
-	u8 CA;
-	u8 LFEPBL01_LSV36_DM_INH7;
-	u8 reserved[5];	/* PB6 - PB10 */
-};
-
 /*
- * 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.
+ * HDMI callbacks
  */
-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, 0x34, 0x43, 0xf2, 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_setup_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 } },
-};
-
-/*
- * HDA/HDMI auto parsing
- */
-
-static int hda_node_index(hda_nid_t *nids, hda_nid_t nid)
-{
-	int i;
-
-	for (i = 0; nids[i]; i++)
-		if (nids[i] == nid)
-			return i;
-
-	snd_printk(KERN_WARNING "HDMI: nid %d not registered\n", nid);
-	return -EINVAL;
-}
-
-static int intel_hdmi_read_pin_conn(struct hda_codec *codec, hda_nid_t pin_nid)
-{
-	struct intel_hdmi_spec *spec = codec->spec;
-	hda_nid_t conn_list[HDA_MAX_CONNECTIONS];
-	int conn_len, curr;
-	int index;
-
-	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;
-	}
-
-	conn_len = snd_hda_get_connections(codec, pin_nid, conn_list,
-					   HDA_MAX_CONNECTIONS);
-	if (conn_len > 1)
-		curr = snd_hda_codec_read(codec, pin_nid, 0,
-					  AC_VERB_GET_CONNECT_SEL, 0);
-	else
-		curr = 0;
-
-	index = hda_node_index(spec->pin, pin_nid);
-	if (index < 0)
-		return -EINVAL;
-
-	spec->pin_cvt[index] = conn_list[curr];
-
-	return 0;
-}
-
-static void hdmi_get_show_eld(struct hda_codec *codec, hda_nid_t pin_nid,
-			      struct hdmi_eld *eld)
-{
-	if (!snd_hdmi_get_eld(eld, codec, pin_nid))
-		snd_hdmi_show_eld(eld);
-}
-
-static void hdmi_present_sense(struct hda_codec *codec, hda_nid_t pin_nid,
-			       struct hdmi_eld *eld)
-{
-	int present = snd_hda_pin_sense(codec, pin_nid);
-
-	eld->monitor_present	= !!(present & AC_PINSENSE_PRESENCE);
-	eld->eld_valid		= !!(present & AC_PINSENSE_ELDV);
-
-	if (present & AC_PINSENSE_ELDV)
-		hdmi_get_show_eld(codec, pin_nid, eld);
-}
-
-static int intel_hdmi_add_pin(struct hda_codec *codec, hda_nid_t pin_nid)
-{
-	struct intel_hdmi_spec *spec = codec->spec;
-
-	if (spec->num_pins >= INTEL_HDMI_PINS) {
-		snd_printk(KERN_WARNING
-			   "HDMI: no space for pin %d \n", pin_nid);
-		return -EINVAL;
-	}
-
-	hdmi_present_sense(codec, pin_nid, &spec->sink_eld[spec->num_pins]);
-
-	spec->pin[spec->num_pins] = pin_nid;
-	spec->num_pins++;
-
-	/*
-	 * It is assumed that converter nodes come first in the node list and
-	 * hence have been registered and usable now.
-	 */
-	return intel_hdmi_read_pin_conn(codec, pin_nid);
-}
-
-static int intel_hdmi_add_cvt(struct hda_codec *codec, hda_nid_t nid)
-{
-	struct intel_hdmi_spec *spec = codec->spec;
-
-	if (spec->num_cvts >= INTEL_HDMI_CVTS) {
-		snd_printk(KERN_WARNING
-			   "HDMI: no space for converter %d \n", nid);
-		return -EINVAL;
-	}
-
-	spec->cvt[spec->num_cvts] = nid;
-	spec->num_cvts++;
-
-	return 0;
-}
-
-static int intel_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:
-			if (intel_hdmi_add_cvt(codec, nid) < 0)
-				return -EINVAL;
-			break;
-		case AC_WID_PIN:
-			caps = snd_hda_param_read(codec, nid, AC_PAR_PIN_CAP);
-			if (!(caps & (AC_PINCAP_HDMI | AC_PINCAP_DP)))
-				continue;
-			if (intel_hdmi_add_pin(codec, nid) < 0)
-				return -EINVAL;
-			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;
-}
-
-/*
- * HDMI routines
- */
-
-#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_enable_output(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);
-	/* Enable pin out */
-	snd_hda_codec_write(codec, pin_nid, 0,
-			    AC_VERB_SET_PIN_WIDGET_CONTROL, PIN_OUT);
-}
-
-/*
- * 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 int hdmi_get_channel_count(struct hda_codec *codec, hda_nid_t nid)
-{
-	return 1 + snd_hda_codec_read(codec, nid, 0,
-					AC_VERB_GET_CVT_CHAN_COUNT, 0);
-}
-
-static void hdmi_set_channel_count(struct hda_codec *codec,
-				   hda_nid_t nid, int chs)
-{
-	if (chs != hdmi_get_channel_count(codec, nid))
-		snd_hda_codec_write(codec, nid, 0,
-				    AC_VERB_SET_CVT_CHAN_COUNT, chs - 1);
-}
-
-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
-}
-
-
-/*
- * Audio InfoFrame routines
- */
-
-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 *ai)
-{
-	u8 *bytes = (u8 *)ai;
-	u8 sum = 0;
-	int i;
-
-	ai->checksum = 0;
-
-	for (i = 0; i < sizeof(*ai); i++)
-		sum += bytes[i];
-
-	ai->checksum = - sum;
-}
-
-static void hdmi_fill_audio_infoframe(struct hda_codec *codec,
-				      hda_nid_t pin_nid,
-				      struct hdmi_audio_infoframe *ai)
-{
-	u8 *bytes = (u8 *)ai;
-	int i;
-
-	hdmi_debug_dip_size(codec, pin_nid);
-	hdmi_clear_dip_buffers(codec, pin_nid); /* be paranoid */
-
-	hdmi_checksum_audio_infoframe(ai);
-
-	hdmi_set_dip_index(codec, pin_nid, 0x0, 0x0);
-	for (i = 0; i < sizeof(*ai); i++)
-		hdmi_write_dip_byte(codec, pin_nid, bytes[i]);
-}
-
-/*
- * 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_setup_channel_allocation(struct hda_codec *codec, hda_nid_t nid,
-					 struct hdmi_audio_infoframe *ai)
-{
-	struct intel_hdmi_spec *spec = codec->spec;
-	struct hdmi_eld *eld;
-	int i;
-	int spk_mask = 0;
-	int channels = 1 + (ai->CC02_CT47 & 0x7);
-	char buf[SND_PRINT_CHANNEL_ALLOCATION_ADVISED_BUFSIZE];
-
-	/*
-	 * CA defaults to 0 for basic stereo audio
-	 */
-	if (channels <= 2)
-		return 0;
-
-	i = hda_node_index(spec->pin_cvt, nid);
-	if (i < 0)
-		return 0;
-	eld = &spec->sink_eld[i];
-
-	/*
-	 * HDMI sink's ELD info cannot always be retrieved for now, e.g.
-	 * in console or for audio devices. Assume the highest speakers
-	 * configuration, to _not_ prohibit multi-channel audio playback.
-	 */
-	if (!eld->spk_alloc)
-		eld->spk_alloc = 0xffff;
-
-	/*
-	 * 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) {
-			ai->CA = channel_allocations[i].ca_index;
-			break;
-		}
-	}
-
-	snd_print_channel_allocation(eld->spk_alloc, buf, sizeof(buf));
-	snd_printdd(KERN_INFO
-			"HDMI: select CA 0x%x for %d-channel allocation: %s\n",
-			ai->CA, channels, buf);
-
-	return ai->CA;
-}
-
-static void hdmi_setup_channel_mapping(struct hda_codec *codec,
-				       hda_nid_t pin_nid,
-				       struct hdmi_audio_infoframe *ai)
-{
-	int i;
-	int ca = ai->CA;
-	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_INFO "HDMI: channel mapping failed\n");
-			break;
-		}
-	}
-
-	hdmi_debug_channel_mapping(codec, pin_nid);
-}
-
-static bool hdmi_infoframe_uptodate(struct hda_codec *codec, hda_nid_t pin_nid,
-				    struct hdmi_audio_infoframe *ai)
-{
-	u8 *bytes = (u8 *)ai;
-	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 < sizeof(*ai); i++) {
-		val = snd_hda_codec_read(codec, pin_nid, 0,
-					 AC_VERB_GET_HDMI_DIP_DATA, 0);
-		if (val != bytes[i])
-			return false;
-	}
-
-	return true;
-}
-
-static void hdmi_setup_audio_infoframe(struct hda_codec *codec, hda_nid_t nid,
-					struct snd_pcm_substream *substream)
-{
-	struct intel_hdmi_spec *spec = codec->spec;
-	hda_nid_t pin_nid;
-	int i;
-	struct hdmi_audio_infoframe ai = {
-		.type		= 0x84,
-		.ver		= 0x01,
-		.len		= 0x0a,
-		.CC02_CT47	= substream->runtime->channels - 1,
-	};
-
-	hdmi_setup_channel_allocation(codec, nid, &ai);
-
-	for (i = 0; i < spec->num_pins; i++) {
-		if (spec->pin_cvt[i] != nid)
-			continue;
-		if (!spec->sink_eld[i].monitor_present)
-			continue;
-
-		pin_nid = spec->pin[i];
-		if (!hdmi_infoframe_uptodate(codec, pin_nid, &ai)) {
-			hdmi_setup_channel_mapping(codec, pin_nid, &ai);
-			hdmi_stop_infoframe_trans(codec, pin_nid);
-			hdmi_fill_audio_infoframe(codec, pin_nid, &ai);
-			hdmi_start_infoframe_trans(codec, pin_nid);
-		}
-	}
-}
-
-
-/*
- * Unsolicited events
- */
-
-static void hdmi_intrinsic_event(struct hda_codec *codec, unsigned int res)
-{
-	struct intel_hdmi_spec *spec = codec->spec;
-	int tag = res >> AC_UNSOL_RES_TAG_SHIFT;
-	int pind = !!(res & AC_UNSOL_RES_PD);
-	int eldv = !!(res & AC_UNSOL_RES_ELDV);
-	int index;
-
-	printk(KERN_INFO
-		"HDMI hot plug event: Pin=%d Presence_Detect=%d ELD_Valid=%d\n",
-		tag, pind, eldv);
-
-	index = hda_node_index(spec->pin, tag);
-	if (index < 0)
-		return;
-
-	spec->sink_eld[index].monitor_present = pind;
-	spec->sink_eld[index].eld_valid = eldv;
-
-	if (pind && eldv) {
-		hdmi_get_show_eld(codec, spec->pin[index], &spec->sink_eld[index]);
-		/* TODO: do real things about ELD */
-	}
-}
-
-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: PIN=%d SUBTAG=0x%x CP_STATE=%d CP_READY=%d\n",
-		tag,
-		subtag,
-		cp_state,
-		cp_ready);
-
-	/* TODO */
-	if (cp_state)
-		;
-	if (cp_ready)
-		;
-}
-
-
-static void intel_hdmi_unsol_event(struct hda_codec *codec, unsigned int res)
-{
-	struct intel_hdmi_spec *spec = codec->spec;
-	int tag = res >> AC_UNSOL_RES_TAG_SHIFT;
-	int subtag = (res & AC_UNSOL_RES_SUBTAG) >> AC_UNSOL_RES_SUBTAG_SHIFT;
-
-	if (hda_node_index(spec->pin, tag) < 0) {
-		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
- */
-
-static void hdmi_setup_stream(struct hda_codec *codec, hda_nid_t nid,
-			      u32 stream_tag, int format)
-{
-	int tag;
-	int fmt;
-
-	tag = snd_hda_codec_read(codec, nid, 0, AC_VERB_GET_CONV, 0) >> 4;
-	fmt = snd_hda_codec_read(codec, nid, 0, AC_VERB_GET_STREAM_FORMAT, 0);
-
-	snd_printdd("hdmi_setup_stream: "
-		    "NID=0x%x, %sstream=0x%x, %sformat=0x%x\n",
-		    nid,
-		    tag == stream_tag ? "" : "new-",
-		    stream_tag,
-		    fmt == format ? "" : "new-",
-		    format);
-
-	if (tag != stream_tag)
-		snd_hda_codec_write(codec, nid, 0,
-				    AC_VERB_SET_CHANNEL_STREAMID, stream_tag << 4);
-	if (fmt != format)
-		snd_hda_codec_write(codec, nid, 0,
-				    AC_VERB_SET_STREAM_FORMAT, format);
-}
 
 static int intel_hdmi_playback_pcm_prepare(struct hda_pcm_stream *hinfo,
 					   struct hda_codec *codec,
···
 
 static int intel_hdmi_build_pcms(struct hda_codec *codec)
 {
-	struct intel_hdmi_spec *spec = codec->spec;
+	struct hdmi_spec *spec = codec->spec;
 	struct hda_pcm *info = spec->pcm_rec;
 	int i;
 
···
 
 static int intel_hdmi_build_controls(struct hda_codec *codec)
 {
-	struct intel_hdmi_spec *spec = codec->spec;
+	struct hdmi_spec *spec = codec->spec;
 	int err;
 	int i;
 
···
 
 static int intel_hdmi_init(struct hda_codec *codec)
 {
-	struct intel_hdmi_spec *spec = codec->spec;
+	struct hdmi_spec *spec = codec->spec;
 	int i;
 
 	for (i = 0; spec->pin[i]; i++) {
···
 
 static void intel_hdmi_free(struct hda_codec *codec)
 {
-	struct intel_hdmi_spec *spec = codec->spec;
+	struct hdmi_spec *spec = codec->spec;
 	int i;
 
 	for (i = 0; i < spec->num_pins; i++)
···
 	.free			= intel_hdmi_free,
 	.build_pcms		= intel_hdmi_build_pcms,
 	.build_controls 	= intel_hdmi_build_controls,
-	.unsol_event		= intel_hdmi_unsol_event,
+	.unsol_event		= hdmi_unsol_event,
 };
 
 static int patch_intel_hdmi(struct hda_codec *codec)
 {
-	struct intel_hdmi_spec *spec;
+	struct hdmi_spec *spec;
 	int i;
 
 	spec = kzalloc(sizeof(*spec), GFP_KERNEL);
···
 		return -ENOMEM;
 
 	codec->spec = spec;
-	if (intel_hdmi_parse_codec(codec) < 0) {
+	if (hdmi_parse_codec(codec) < 0) {
 		codec->spec = NULL;
 		kfree(spec);
 		return -EINVAL;

sound/pci/hda/patch_nvhdmi.c

···
 #include "hda_codec.h"
 #include "hda_local.h"
 
+#define MAX_HDMI_CVTS	1
+#define MAX_HDMI_PINS	1
+
+#include "patch_hdmi.c"
+
+static char *nvhdmi_pcm_names[MAX_HDMI_CVTS] = {
+	"NVIDIA HDMI",
+};
+
 /* define below to restrict the supported rates and formats */
 /* #define LIMITED_RATE_FMT_SUPPORT */
 
···
 	(SNDRV_PCM_FMTBIT_S16_LE | SNDRV_PCM_FMTBIT_S32_LE)
 #endif
 
-#define NVIDIA_89_HDMI_CVTS	1
-#define NVIDIA_89_HDMI_PINS	1
-
-static char *nvhdmi_pcm_names[NVIDIA_89_HDMI_CVTS] = {
-	"NVIDIA HDMI",
-};
-
-struct nvhdmi_spec {
-	int num_cvts;
-	int num_pins;
-	hda_nid_t cvt[NVIDIA_89_HDMI_CVTS+1];  /* audio sources */
-	hda_nid_t pin[NVIDIA_89_HDMI_PINS+1];  /* audio sinks */
-	hda_nid_t pin_cvt[NVIDIA_89_HDMI_PINS+1];
-	struct hda_pcm pcm_rec[NVIDIA_89_HDMI_CVTS];
-	struct hdmi_eld sink_eld[NVIDIA_89_HDMI_PINS];
-	struct hda_multi_out multiout;
-	unsigned int codec_type;
-};
-
-struct hdmi_audio_infoframe {
-	u8 type; /* 0x84 */
-	u8 ver;  /* 0x01 */
-	u8 len;  /* 0x0a */
-
-	u8 checksum;	/* PB0 */
-	u8 CC02_CT47;	/* CC in bits 0:2, CT in 4:7 */
-	u8 SS01_SF24;
-	u8 CXT04;
-	u8 CA;
-	u8 LFEPBL01_LSV36_DM_INH7;
-};
-
-/*
- * 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, 0x34, 0x43, 0xf2, 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, 0x32, 0x23, 0x64, 0x75, 0x46, 0x57 },
-};
-
-/*
- * This is an ordered list!
- *
- * The preceding ones have better chances to be selected by
- * hdmi_setup_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 } },
-};
-
-/*
- * HDA/HDMI auto parsing
- */
-
-static int hda_node_index(hda_nid_t *nids, hda_nid_t nid)
-{
-	int i;
-
-	for (i = 0; nids[i]; i++)
-		if (nids[i] == nid)
-			return i;
-
-	snd_printk(KERN_WARNING "HDMI: nid %d not registered\n", nid);
-	return -EINVAL;
-}
-
-static int nvhdmi_read_pin_conn(struct hda_codec *codec, hda_nid_t pin_nid)
-{
-	struct nvhdmi_spec *spec = codec->spec;
-	hda_nid_t conn_list[HDA_MAX_CONNECTIONS];
-	int conn_len, curr;
-	int index;
-
-	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;
-	}
-
-	conn_len = snd_hda_get_connections(codec, pin_nid, conn_list,
-					   HDA_MAX_CONNECTIONS);
-	if (conn_len > 1)
-		curr = snd_hda_codec_read(codec, pin_nid, 0,
-					  AC_VERB_GET_CONNECT_SEL, 0);
-	else
-		curr = 0;
-
-	index = hda_node_index(spec->pin, pin_nid);
-	if (index < 0)
-		return -EINVAL;
-
-	spec->pin_cvt[index] = conn_list[curr];
-
-	return 0;
-}
-
-static void hdmi_get_show_eld(struct hda_codec *codec, hda_nid_t pin_nid,
-			      struct hdmi_eld *eld)
-{
-	if (!snd_hdmi_get_eld(eld, codec, pin_nid))
-		snd_hdmi_show_eld(eld);
-}
-
-static void hdmi_present_sense(struct hda_codec *codec, hda_nid_t pin_nid,
-			       struct hdmi_eld *eld)
-{
-	int present = snd_hda_pin_sense(codec, pin_nid);
-
-	eld->monitor_present	= !!(present & AC_PINSENSE_PRESENCE);
-	eld->eld_valid		= !!(present & AC_PINSENSE_ELDV);
-
-	if (present & AC_PINSENSE_ELDV)
-		hdmi_get_show_eld(codec, pin_nid, eld);
-}
-
-static int nvhdmi_add_pin(struct hda_codec *codec, hda_nid_t pin_nid)
-{
-	struct nvhdmi_spec *spec = codec->spec;
-
-	if (spec->num_pins >= NVIDIA_89_HDMI_PINS) {
-		snd_printk(KERN_WARNING
-			   "HDMI: no space for pin %d \n", pin_nid);
-		return -EINVAL;
-	}
-
-	hdmi_present_sense(codec, pin_nid, &spec->sink_eld[spec->num_pins]);
-
-	spec->pin[spec->num_pins] = pin_nid;
-	spec->num_pins++;
-
-	/*
-	 * It is assumed that converter nodes come first in the node list and
-	 * hence have been registered and usable now.
-	 */
-	return nvhdmi_read_pin_conn(codec, pin_nid);
-}
-
-static int nvhdmi_add_cvt(struct hda_codec *codec, hda_nid_t nid)
-{
-	struct nvhdmi_spec *spec = codec->spec;
-
-	if (spec->num_cvts >= NVIDIA_89_HDMI_CVTS) {
-		snd_printk(KERN_WARNING
-			   "HDMI: no space for converter %d \n", nid);
-		return -EINVAL;
-	}
-
-	spec->cvt[spec->num_cvts] = nid;
-	spec->num_cvts++;
-
-	return 0;
-}
-
-
-static int nvhdmi_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:
-			if (nvhdmi_add_cvt(codec, nid) < 0)
-				return -EINVAL;
-			break;
-		case AC_WID_PIN:
-			caps = snd_hda_param_read(codec, nid, AC_PAR_PIN_CAP);
-			if (!(caps & (AC_PINCAP_HDMI | AC_PINCAP_DP)))
-				continue;
-			if (nvhdmi_add_pin(codec, nid) < 0)
-				return -EINVAL;
-			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;
-}
-
-/*
- * HDMI routines
- */
-
-#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_enable_output(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);
-	/* Enable pin out */
-	snd_hda_codec_write(codec, pin_nid, 0,
-			    AC_VERB_SET_PIN_WIDGET_CONTROL, PIN_OUT);
-}
-
-/*
- * 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 int hdmi_get_channel_count(struct hda_codec *codec, hda_nid_t nid)
-{
-	return 1 + snd_hda_codec_read(codec, nid, 0,
-					AC_VERB_GET_CVT_CHAN_COUNT, 0);
-}
-
-static void hdmi_set_channel_count(struct hda_codec *codec,
-				   hda_nid_t nid, int chs)
-{
-	if (chs != hdmi_get_channel_count(codec, nid))
-		snd_hda_codec_write(codec, nid, 0,
-				    AC_VERB_SET_CVT_CHAN_COUNT, chs - 1);
-}
-
-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
-}
-
-
-/*
- * Audio InfoFrame routines
- */
-
-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 *ai)
-{
-	ai->checksum = 0;
-}
-
-static void hdmi_fill_audio_infoframe(struct hda_codec *codec,
-				      hda_nid_t pin_nid,
-				      struct hdmi_audio_infoframe *ai)
-{
-	u8 *bytes = (u8 *)ai;
-	int i;
-
-	hdmi_debug_dip_size(codec, pin_nid);
-	hdmi_clear_dip_buffers(codec, pin_nid); /* be paranoid */
-
-	hdmi_checksum_audio_infoframe(ai);
-
-	hdmi_set_dip_index(codec, pin_nid, 0x0, 0x0);
-	for (i = 0; i < sizeof(*ai); i++)
-		hdmi_write_dip_byte(codec, pin_nid, bytes[i]);
-}
-
-/*
- * 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_setup_channel_allocation(struct hda_codec *codec, hda_nid_t nid,
-					 struct hdmi_audio_infoframe *ai)
-{
-	struct nvhdmi_spec *spec = codec->spec;
-	struct hdmi_eld *eld;
-	int i;
-	int spk_mask = 0;
-	int channels = 1 + (ai->CC02_CT47 & 0x7);
-	char buf[SND_PRINT_CHANNEL_ALLOCATION_ADVISED_BUFSIZE];
-
-	/*
-	 * CA defaults to 0 for basic stereo audio
-	 */
-	if (channels <= 2)
-		return 0;
-
-	i = hda_node_index(spec->pin_cvt, nid);
-	if (i < 0)
-		return 0;
-	eld = &spec->sink_eld[i];
-
-	/*
-	 * HDMI sink's ELD info cannot always be retrieved for now, e.g.
-	 * in console or for audio devices. Assume the highest speakers
-	 * configuration, to _not_ prohibit multi-channel audio playback.
-	 */
-	if (!eld->spk_alloc)
-		eld->spk_alloc = 0xffff;
-
-	/*
-	 * 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) {
-			ai->CA = channel_allocations[i].ca_index;
-			break;
-		}
-	}
-
-	snd_print_channel_allocation(eld->spk_alloc, buf, sizeof(buf));
-	snd_printdd(KERN_INFO
-			"HDMI: select CA 0x%x for %d-channel allocation: %s\n",
-			ai->CA, channels, buf);
-
-	return ai->CA;
-}
-
-static void hdmi_setup_channel_mapping(struct hda_codec *codec,
-				       hda_nid_t pin_nid,
-				       struct hdmi_audio_infoframe *ai)
-{
-	int i;
-	int ca = ai->CA;
-	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_INFO "HDMI: channel mapping failed\n");
-			break;
-		}
-	}
-
-	hdmi_debug_channel_mapping(codec, pin_nid);
-}
-
-static bool hdmi_infoframe_uptodate(struct hda_codec *codec, hda_nid_t pin_nid,
-				    struct hdmi_audio_infoframe *ai)
-{
-	u8 *bytes = (u8 *)ai;
-	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 < sizeof(*ai); i++) {
-		val = snd_hda_codec_read(codec, pin_nid, 0,
-					 AC_VERB_GET_HDMI_DIP_DATA, 0);
-		if (val != bytes[i])
-			return false;
-	}
-
-	return true;
-}
-
-static void hdmi_setup_audio_infoframe(struct hda_codec *codec, hda_nid_t nid,
-					struct snd_pcm_substream *substream)
-{
-	struct nvhdmi_spec *spec = codec->spec;
-	hda_nid_t pin_nid;
-	int i;
-	struct hdmi_audio_infoframe ai = {
-		.type		= 0x84,
-		.ver		= 0x01,
-		.len		= 0x0a,
-		.CC02_CT47	= substream->runtime->channels - 1,
-	};
-
-	hdmi_setup_channel_allocation(codec, nid, &ai);
-
-	for (i = 0; i < spec->num_pins; i++) {
-		if (spec->pin_cvt[i] != nid)
-			continue;
-		if (!spec->sink_eld[i].monitor_present)
-			continue;
-
-		pin_nid = spec->pin[i];
-		if (!hdmi_infoframe_uptodate(codec, pin_nid, &ai)) {
-			hdmi_setup_channel_mapping(codec, pin_nid, &ai);
-			hdmi_stop_infoframe_trans(codec, pin_nid);
-			hdmi_fill_audio_infoframe(codec, pin_nid, &ai);
-			hdmi_start_infoframe_trans(codec, pin_nid);
-		}
-	}
-}
-
-/*
- * Unsolicited events
- */
-
-static void hdmi_intrinsic_event(struct hda_codec *codec, unsigned int res)
-{
-	struct nvhdmi_spec *spec = codec->spec;
-	int tag = res >> AC_UNSOL_RES_TAG_SHIFT;
-	int pind = !!(res & AC_UNSOL_RES_PD);
-	int eldv = !!(res & AC_UNSOL_RES_ELDV);
-	int index;
-
-	printk(KERN_INFO
-		"HDMI hot plug event: Pin=%d Presence_Detect=%d ELD_Valid=%d\n",
-		tag, pind, eldv);
-
-	index = hda_node_index(spec->pin, tag);
-	if (index < 0)
-		return;
-
-	spec->sink_eld[index].monitor_present = pind;
-	spec->sink_eld[index].eld_valid = eldv;
-
-	if (eldv) {
-		spec->sink_eld[index].monitor_present = 1;
-		hdmi_get_show_eld(codec, spec->pin[index],
-				 &spec->sink_eld[index]);
-		/* TODO: do real things about ELD */
-	}
-}
-
-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: PIN=%d SUBTAG=0x%x CP_STATE=%d CP_READY=%d\n",
-		tag,
-		subtag,
-		cp_state,
-		cp_ready);
-
-	/* TODO */
-	if (cp_state)
-		;
-	if (cp_ready)
-		;
-}
-
-static void nvhdmi_unsol_event(struct hda_codec *codec, unsigned int res)
-{
-	struct nvhdmi_spec *spec = codec->spec;
-	int tag = res >> AC_UNSOL_RES_TAG_SHIFT;
-	int subtag = (res & AC_UNSOL_RES_SUBTAG) >> AC_UNSOL_RES_SUBTAG_SHIFT;
-
-	if (hda_node_index(spec->pin, tag) < 0) {
-		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
- */
-
-static void hdmi_setup_stream(struct hda_codec *codec, hda_nid_t nid,
-			      u32 stream_tag, int format)
-{
-	int tag;
-	int fmt;
-
-	tag = snd_hda_codec_read(codec, nid, 0, AC_VERB_GET_CONV, 0) >> 4;
-	fmt = snd_hda_codec_read(codec, nid, 0, AC_VERB_GET_STREAM_FORMAT, 0);
-
-	snd_printdd("hdmi_setup_stream: "
-		    "NID=0x%x, %sstream=0x%x, %sformat=0x%x\n",
-		    nid,
-		    tag == stream_tag ? "" : "new-",
-		    stream_tag,
-		    fmt == format ? "" : "new-",
-		    format);
-
-	if (tag != stream_tag)
-		snd_hda_codec_write(codec, nid, 0,
-				    AC_VERB_SET_CHANNEL_STREAMID,
-				    stream_tag << 4);
-	if (fmt != format)
-		snd_hda_codec_write(codec, nid, 0,
-				    AC_VERB_SET_STREAM_FORMAT, format);
-}
-
 /*
  * Controls
  */
 static int nvhdmi_build_controls(struct hda_codec *codec)
 {
-	struct nvhdmi_spec *spec = codec->spec;
+	struct hdmi_spec *spec = codec->spec;
 	int err;
 	int i;
 
···
 
 static int nvhdmi_init(struct hda_codec *codec)
 {
-	struct nvhdmi_spec *spec = codec->spec;
+	struct hdmi_spec *spec = codec->spec;
 	int i;
 	if ((spec->codec_type == HDA_CODEC_NVIDIA_MCP89)
 	|| (spec->codec_type == HDA_CODEC_NVIDIA_GT21X)) {
···
 
 static void nvhdmi_free(struct hda_codec *codec)
 {
-	struct nvhdmi_spec *spec = codec->spec;
+	struct hdmi_spec *spec = codec->spec;
 	int i;
 
 	if ((spec->codec_type == HDA_CODEC_NVIDIA_MCP89)
···
 					struct hda_codec *codec,
 					struct snd_pcm_substream *substream)
 {
-	struct nvhdmi_spec *spec = codec->spec;
+	struct hdmi_spec *spec = codec->spec;
 	return snd_hda_multi_out_dig_open(codec, &spec->multiout);
 }
 
···
 					struct hda_codec *codec,
 					struct snd_pcm_substream *substream)
 {
-	struct nvhdmi_spec *spec = codec->spec;
+	struct hdmi_spec *spec = codec->spec;
 	int i;
 
 	snd_hda_codec_write(codec, nvhdmi_master_con_nid_7x,
···
 					struct hda_codec *codec,
 					struct snd_pcm_substream *substream)
 {
-	struct nvhdmi_spec *spec = codec->spec;
+	struct hdmi_spec *spec = codec->spec;
 	return snd_hda_multi_out_dig_close(codec, &spec->multiout);
 }
 
···
 					unsigned int format,
 					struct snd_pcm_substream *substream)
 {
-	struct nvhdmi_spec *spec = codec->spec;
+	struct hdmi_spec *spec = codec->spec;
 	return snd_hda_multi_out_dig_prepare(codec, &spec->multiout, stream_tag,
 					format, substream);
 }
···
 
 static int nvhdmi_build_pcms_8ch_89(struct hda_codec *codec)
 {
-	struct nvhdmi_spec *spec = codec->spec;
+	struct hdmi_spec *spec = codec->spec;
 	struct hda_pcm *info = spec->pcm_rec;
 	int i;
 
···
 
 static int nvhdmi_build_pcms_8ch_7x(struct hda_codec *codec)
 {
-	struct nvhdmi_spec *spec = codec->spec;
+	struct hdmi_spec *spec = codec->spec;
 	struct hda_pcm *info = spec->pcm_rec;
 
 	codec->num_pcms = 1;
···
 
 static int nvhdmi_build_pcms_2ch(struct hda_codec *codec)
 {
-	struct nvhdmi_spec *spec = codec->spec;
+	struct hdmi_spec *spec = codec->spec;
 	struct hda_pcm *info = spec->pcm_rec;
 
 	codec->num_pcms = 1;
···
 	.build_pcms = nvhdmi_build_pcms_8ch_89,
 	.init = nvhdmi_init,
 	.free = nvhdmi_free,
-	.unsol_event = nvhdmi_unsol_event,
+	.unsol_event = hdmi_unsol_event,
 };
 
 static struct hda_codec_ops nvhdmi_patch_ops_8ch_7x = {
···
 
 static int patch_nvhdmi_8ch_89(struct hda_codec *codec)
 {
-	struct nvhdmi_spec *spec;
+	struct hdmi_spec *spec;
 	int i;
 
 	spec = kzalloc(sizeof(*spec), GFP_KERNEL);
···
 	codec->spec = spec;
 	spec->codec_type = HDA_CODEC_NVIDIA_MCP89;
 
-	if (nvhdmi_parse_codec(codec) < 0) {
+	if (hdmi_parse_codec(codec) < 0) {
 		codec->spec = NULL;
 		kfree(spec);
 		return -EINVAL;
···
 
 static int patch_nvhdmi_8ch_7x(struct hda_codec *codec)
 {
-	struct nvhdmi_spec *spec;
+	struct hdmi_spec *spec;
 
 	spec = kzalloc(sizeof(*spec), GFP_KERNEL);
 	if (spec == NULL)
···
 
 static int patch_nvhdmi_2ch(struct hda_codec *codec)
 {
-	struct nvhdmi_spec *spec;
+	struct hdmi_spec *spec;
 
 	spec = kzalloc(sizeof(*spec), GFP_KERNEL);
 	if (spec == NULL)