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-rw-r--r--sound/pci/hda/patch_intelhdmi.c711
1 files changed, 711 insertions, 0 deletions
diff --git a/sound/pci/hda/patch_intelhdmi.c b/sound/pci/hda/patch_intelhdmi.c
new file mode 100644
index 00000000000..3564f4e4b74
--- /dev/null
+++ b/sound/pci/hda/patch_intelhdmi.c
@@ -0,0 +1,711 @@
+/*
+ *
+ * patch_intelhdmi.c - Patch for Intel HDMI codecs
+ *
+ * Copyright(c) 2008 Intel Corporation. All rights reserved.
+ *
+ * Authors:
+ * Jiang Zhe <zhe.jiang@intel.com>
+ * 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 <sound/core.h>
+#include "hda_codec.h"
+#include "hda_local.h"
+
+#define CVT_NID 0x02 /* audio converter */
+#define PIN_NID 0x03 /* HDMI output pin */
+
+#define INTEL_HDMI_EVENT_TAG 0x08
+
+struct intel_hdmi_spec {
+ struct hda_multi_out multiout;
+ struct hda_pcm pcm_rec;
+ struct hdmi_eld sink_eld;
+};
+
+static struct hda_verb pinout_enable_verb[] = {
+ {PIN_NID, AC_VERB_SET_PIN_WIDGET_CONTROL, PIN_OUT},
+ {} /* terminator */
+};
+
+static struct hda_verb pinout_disable_verb[] = {
+ {PIN_NID, AC_VERB_SET_PIN_WIDGET_CONTROL, 0x00},
+ {}
+};
+
+static struct hda_verb unsolicited_response_verb[] = {
+ {PIN_NID, AC_VERB_SET_UNSOLICITED_ENABLE, AC_USRSP_EN |
+ INTEL_HDMI_EVENT_TAG},
+ {}
+};
+
+static struct hda_verb def_chan_map[] = {
+ {CVT_NID, AC_VERB_SET_HDMI_CHAN_SLOT, 0x00},
+ {CVT_NID, AC_VERB_SET_HDMI_CHAN_SLOT, 0x11},
+ {CVT_NID, AC_VERB_SET_HDMI_CHAN_SLOT, 0x22},
+ {CVT_NID, AC_VERB_SET_HDMI_CHAN_SLOT, 0x33},
+ {CVT_NID, AC_VERB_SET_HDMI_CHAN_SLOT, 0x44},
+ {CVT_NID, AC_VERB_SET_HDMI_CHAN_SLOT, 0x55},
+ {CVT_NID, AC_VERB_SET_HDMI_CHAN_SLOT, 0x66},
+ {CVT_NID, AC_VERB_SET_HDMI_CHAN_SLOT, 0x77},
+ {}
+};
+
+
+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;
+};
+
+/*
+ * 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: 8 7 6 5 4 3 2 1 */
+{ .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 } },
+{ .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 = 0x08, .speakers = { 0, 0, RR, RL, 0, 0, FR, FL } },
+{ .ca_index = 0x09, .speakers = { 0, 0, RR, RL, 0, LFE, FR, FL } },
+{ .ca_index = 0x0a, .speakers = { 0, 0, RR, RL, FC, 0, FR, FL } },
+ /* 5.1 */
+{ .ca_index = 0x0b, .speakers = { 0, 0, RR, RL, 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 } },
+ /* 6.1 */
+{ .ca_index = 0x0f, .speakers = { 0, RC, RR, RL, FC, LFE, 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 } },
+ /* 7.1 */
+{ .ca_index = 0x13, .speakers = { RRC, RLC, RR, RL, FC, LFE, 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
+ */
+
+#ifdef BE_PARANOID
+static void hdmi_get_dip_index(struct hda_codec *codec, hda_nid_t nid,
+ int *packet_index, int *byte_index)
+{
+ int val;
+
+ val = snd_hda_codec_read(codec, 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 nid,
+ int packet_index, int byte_index)
+{
+ int val;
+
+ val = (packet_index << 5) | (byte_index & 0x1f);
+
+ snd_hda_codec_write(codec, nid, 0, AC_VERB_SET_HDMI_DIP_INDEX, val);
+}
+
+static void hdmi_write_dip_byte(struct hda_codec *codec, hda_nid_t nid,
+ unsigned char val)
+{
+ snd_hda_codec_write(codec, nid, 0, AC_VERB_SET_HDMI_DIP_DATA, val);
+}
+
+static void hdmi_enable_output(struct hda_codec *codec)
+{
+ /* Enable Audio InfoFrame Transmission */
+ 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);
+ /* 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_sequence_write(codec, pinout_enable_verb);
+}
+
+static void hdmi_disable_output(struct hda_codec *codec)
+{
+ snd_hda_sequence_write(codec, pinout_disable_verb);
+ 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_MUTE);
+
+ /*
+ * FIXME: noises may arise when playing music after reloading the
+ * kernel module, until the next X restart or monitor repower.
+ */
+}
+
+static int hdmi_get_channel_count(struct hda_codec *codec)
+{
+ 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, int chs)
+{
+ snd_hda_codec_write(codec, CVT_NID, 0,
+ AC_VERB_SET_CVT_CHAN_COUNT, chs - 1);
+
+ if (chs != hdmi_get_channel_count(codec))
+ snd_printd(KERN_INFO "HDMI channel count: expect %d, get %d\n",
+ chs, hdmi_get_channel_count(codec));
+}
+
+static void hdmi_debug_channel_mapping(struct hda_codec *codec)
+{
+#ifdef CONFIG_SND_DEBUG_VERBOSE
+ int i;
+ int slot;
+
+ for (i = 0; i < 8; i++) {
+ slot = snd_hda_codec_read(codec, CVT_NID, 0,
+ AC_VERB_GET_HDMI_CHAN_SLOT, i);
+ printk(KERN_DEBUG "HDMI: ASP channel %d => slot %d\n",
+ slot >> 4, slot & 0x7);
+ }
+#endif
+}
+
+static void hdmi_parse_eld(struct hda_codec *codec)
+{
+ struct intel_hdmi_spec *spec = codec->spec;
+ struct hdmi_eld *eld = &spec->sink_eld;
+
+ if (!snd_hdmi_get_eld(eld, codec, PIN_NID))
+ snd_hdmi_show_eld(eld);
+}
+
+
+/*
+ * Audio InfoFrame routines
+ */
+
+static void hdmi_debug_dip_size(struct hda_codec *codec)
+{
+#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)
+{
+#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_fill_audio_infoframe(struct hda_codec *codec,
+ struct hdmi_audio_infoframe *ai)
+{
+ u8 *params = (u8 *)ai;
+ int i;
+
+ hdmi_debug_dip_size(codec);
+ hdmi_clear_dip_buffers(codec); /* be paranoid */
+
+ hdmi_set_dip_index(codec, PIN_NID, 0x0, 0x0);
+ for (i = 0; i < sizeof(ai); i++)
+ hdmi_write_dip_byte(codec, PIN_NID, params[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,
+ struct hdmi_audio_infoframe *ai)
+{
+ struct intel_hdmi_spec *spec = codec->spec;
+ struct hdmi_eld *eld = &spec->sink_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 (!eld->eld_ver)
+ return 0;
+ if (!eld->spk_alloc)
+ return 0;
+ 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) {
+ 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,
+ struct hdmi_audio_infoframe *ai)
+{
+ if (!ai->CA)
+ return;
+
+ /*
+ * TODO: adjust channel mapping if necessary
+ * ALSA sequence is front/surr/clfe/side?
+ */
+
+ snd_hda_sequence_write(codec, def_chan_map);
+ hdmi_debug_channel_mapping(codec);
+}
+
+
+static void hdmi_setup_audio_infoframe(struct hda_codec *codec,
+ struct snd_pcm_substream *substream)
+{
+ struct hdmi_audio_infoframe ai = {
+ .type = 0x84,
+ .ver = 0x01,
+ .len = 0x0a,
+ .CC02_CT47 = substream->runtime->channels - 1,
+ };
+
+ hdmi_setup_channel_allocation(codec, &ai);
+ hdmi_setup_channel_mapping(codec, &ai);
+
+ hdmi_fill_audio_infoframe(codec, &ai);
+}
+
+
+/*
+ * Unsolicited events
+ */
+
+static void hdmi_intrinsic_event(struct hda_codec *codec, unsigned int res)
+{
+ int pind = !!(res & AC_UNSOL_RES_PD);
+ int eldv = !!(res & AC_UNSOL_RES_ELDV);
+
+ printk(KERN_INFO
+ "HDMI hot plug event: Presence_Detect=%d ELD_Valid=%d\n",
+ pind, eldv);
+
+ if (pind && eldv) {
+ hdmi_parse_eld(codec);
+ /* TODO: do real things about ELD */
+ }
+}
+
+static void hdmi_non_intrinsic_event(struct hda_codec *codec, unsigned int res)
+{
+ 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 content protection event: SUBTAG=0x%x CP_STATE=%d CP_READY=%d\n",
+ 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)
+{
+ int tag = res >> AC_UNSOL_RES_TAG_SHIFT;
+ int subtag = (res & AC_UNSOL_RES_SUBTAG) >> AC_UNSOL_RES_SUBTAG_SHIFT;
+
+ if (tag != INTEL_HDMI_EVENT_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
+ */
+
+static int intel_hdmi_playback_pcm_open(struct hda_pcm_stream *hinfo,
+ struct hda_codec *codec,
+ struct snd_pcm_substream *substream)
+{
+ struct intel_hdmi_spec *spec = codec->spec;
+
+ return snd_hda_multi_out_dig_open(codec, &spec->multiout);
+}
+
+static int intel_hdmi_playback_pcm_close(struct hda_pcm_stream *hinfo,
+ struct hda_codec *codec,
+ struct snd_pcm_substream *substream)
+{
+ struct intel_hdmi_spec *spec = codec->spec;
+
+ hdmi_disable_output(codec);
+
+ return snd_hda_multi_out_dig_close(codec, &spec->multiout);
+}
+
+static int intel_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)
+{
+ struct intel_hdmi_spec *spec = codec->spec;
+
+ snd_hda_multi_out_dig_prepare(codec, &spec->multiout, stream_tag,
+ format, substream);
+
+ hdmi_set_channel_count(codec, substream->runtime->channels);
+
+ hdmi_setup_audio_infoframe(codec, substream);
+
+ hdmi_enable_output(codec);
+
+ return 0;
+}
+
+static struct hda_pcm_stream intel_hdmi_pcm_playback = {
+ .substreams = 1,
+ .channels_min = 2,
+ .channels_max = 8,
+ .nid = CVT_NID, /* NID to query formats and rates and setup streams */
+ .ops = {
+ .open = intel_hdmi_playback_pcm_open,
+ .close = intel_hdmi_playback_pcm_close,
+ .prepare = intel_hdmi_playback_pcm_prepare
+ },
+};
+
+static int intel_hdmi_build_pcms(struct hda_codec *codec)
+{
+ struct intel_hdmi_spec *spec = codec->spec;
+ struct hda_pcm *info = &spec->pcm_rec;
+
+ codec->num_pcms = 1;
+ codec->pcm_info = info;
+
+ info->name = "INTEL HDMI";
+ info->pcm_type = HDA_PCM_TYPE_HDMI;
+ info->stream[SNDRV_PCM_STREAM_PLAYBACK] = intel_hdmi_pcm_playback;
+
+ return 0;
+}
+
+static int intel_hdmi_build_controls(struct hda_codec *codec)
+{
+ struct intel_hdmi_spec *spec = codec->spec;
+ int err;
+
+ err = snd_hda_create_spdif_out_ctls(codec, spec->multiout.dig_out_nid);
+ if (err < 0)
+ return err;
+
+ return 0;
+}
+
+static int intel_hdmi_init(struct hda_codec *codec)
+{
+ /* disable audio output as early as possible */
+ hdmi_disable_output(codec);
+
+ snd_hda_sequence_write(codec, unsolicited_response_verb);
+
+ return 0;
+}
+
+static void intel_hdmi_free(struct hda_codec *codec)
+{
+ struct intel_hdmi_spec *spec = codec->spec;
+
+ snd_hda_eld_proc_free(codec, &spec->sink_eld);
+ kfree(spec);
+}
+
+static struct hda_codec_ops intel_hdmi_patch_ops = {
+ .init = intel_hdmi_init,
+ .free = intel_hdmi_free,
+ .build_pcms = intel_hdmi_build_pcms,
+ .build_controls = intel_hdmi_build_controls,
+ .unsol_event = intel_hdmi_unsol_event,
+};
+
+static int patch_intel_hdmi(struct hda_codec *codec)
+{
+ struct intel_hdmi_spec *spec;
+
+ spec = kzalloc(sizeof(*spec), GFP_KERNEL);
+ if (spec == NULL)
+ return -ENOMEM;
+
+ spec->multiout.num_dacs = 0; /* no analog */
+ spec->multiout.max_channels = 8;
+ spec->multiout.dig_out_nid = CVT_NID;
+
+ codec->spec = spec;
+ codec->patch_ops = intel_hdmi_patch_ops;
+
+ snd_hda_eld_proc_new(codec, &spec->sink_eld);
+
+ init_channel_allocations();
+
+ return 0;
+}
+
+static struct hda_codec_preset snd_hda_preset_intelhdmi[] = {
+ { .id = 0x808629fb, .name = "G45 DEVCL", .patch = patch_intel_hdmi },
+ { .id = 0x80862801, .name = "G45 DEVBLC", .patch = patch_intel_hdmi },
+ { .id = 0x80862802, .name = "G45 DEVCTG", .patch = patch_intel_hdmi },
+ { .id = 0x80862803, .name = "G45 DEVELK", .patch = patch_intel_hdmi },
+ { .id = 0x10951392, .name = "SiI1392 HDMI", .patch = patch_intel_hdmi },
+ {} /* terminator */
+};
+
+MODULE_ALIAS("snd-hda-codec-id:808629fb");
+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:10951392");
+
+MODULE_LICENSE("GPL");
+MODULE_DESCRIPTION("Intel HDMI HD-audio codec");
+
+static struct hda_codec_preset_list intel_list = {
+ .preset = snd_hda_preset_intelhdmi,
+ .owner = THIS_MODULE,
+};
+
+static int __init patch_intelhdmi_init(void)
+{
+ return snd_hda_add_codec_preset(&intel_list);
+}
+
+static void __exit patch_intelhdmi_exit(void)
+{
+ snd_hda_delete_codec_preset(&intel_list);
+}
+
+module_init(patch_intelhdmi_init)
+module_exit(patch_intelhdmi_exit)
generated by cgit v1.2.3-70-g09d2 (git 2.46.0) at 2024-11-14 20:24:21 +0000