From 54a25f87e943fc77f57e86849897ad6602519286 Mon Sep 17 00:00:00 2001 From: Wu Fengguang Date: Fri, 30 Oct 2009 11:44:26 +0100 Subject: [PATCH] ALSA: hda - vectorize intelhdmi The Intel IbexPeak HDMI codec supports 2 converters and 3 pins, which requires converting the cvt_nid/pin_nid to arrays. The active pin number (the one connected with a live HDMI monitor/sink) will be dynamically identified on hotplug events. It exports two HDMI devices, so that user space can choose the A/V pipe for sending the audio samples. It's still undefined behavior when there are two active monitors connected and routed to the same audio converter. Signed-off-by: Wu Fengguang Signed-off-by: Takashi Iwai --- sound/pci/hda/hda_eld.c | 5 +- sound/pci/hda/hda_local.h | 6 +- sound/pci/hda/patch_intelhdmi.c | 191 +++++++++++++++++++++++++++++++--------- 3 files changed, 155 insertions(+), 47 deletions(-) diff --git a/sound/pci/hda/hda_eld.c b/sound/pci/hda/hda_eld.c index 9446a5a..20fa6ae 100644 --- a/sound/pci/hda/hda_eld.c +++ b/sound/pci/hda/hda_eld.c @@ -560,13 +560,14 @@ static void hdmi_write_eld_info(struct snd_info_entry *entry, } -int snd_hda_eld_proc_new(struct hda_codec *codec, struct hdmi_eld *eld) +int snd_hda_eld_proc_new(struct hda_codec *codec, struct hdmi_eld *eld, + int index) { char name[32]; struct snd_info_entry *entry; int err; - snprintf(name, sizeof(name), "eld#%d", codec->addr); + snprintf(name, sizeof(name), "eld#%d.%d", codec->addr, index); err = snd_card_proc_new(codec->bus->card, name, &entry); if (err < 0) return err; diff --git a/sound/pci/hda/hda_local.h b/sound/pci/hda/hda_local.h index 5f1dcc5..461e0c1 100644 --- a/sound/pci/hda/hda_local.h +++ b/sound/pci/hda/hda_local.h @@ -541,11 +541,13 @@ int snd_hdmi_get_eld(struct hdmi_eld *, struct hda_codec *, hda_nid_t); void snd_hdmi_show_eld(struct hdmi_eld *eld); #ifdef CONFIG_PROC_FS -int snd_hda_eld_proc_new(struct hda_codec *codec, struct hdmi_eld *eld); +int snd_hda_eld_proc_new(struct hda_codec *codec, struct hdmi_eld *eld, + int index); void snd_hda_eld_proc_free(struct hda_codec *codec, struct hdmi_eld *eld); #else static inline int snd_hda_eld_proc_new(struct hda_codec *codec, - struct hdmi_eld *eld) + struct hdmi_eld *eld, + int index) { return 0; } diff --git a/sound/pci/hda/patch_intelhdmi.c b/sound/pci/hda/patch_intelhdmi.c index 6be5ca4..08ea88d 100644 --- a/sound/pci/hda/patch_intelhdmi.c +++ b/sound/pci/hda/patch_intelhdmi.c @@ -33,14 +33,43 @@ #include "hda_codec.h" #include "hda_local.h" -static hda_nid_t cvt_nid; /* audio converter */ -static hda_nid_t pin_nid; /* HDMI output pin */ +/* + * The HDMI/DisplayPort configuration can be highly dynamic. A graphics device + * could support two independent pipes, each of them can be connected to one or + * more ports (DVI, HDMI or DisplayPort). + * + * The HDA correspondence of pipes/ports are converter/pin nodes. + */ +#define INTEL_HDMI_CVTS 2 +#define INTEL_HDMI_PINS 3 -#define INTEL_HDMI_EVENT_TAG 0x08 +static char *intel_hdmi_pcm_names[INTEL_HDMI_CVTS] = { + "INTEL HDMI 0", + "INTEL HDMI 1", +}; struct intel_hdmi_spec { - struct hda_pcm pcm_rec; - struct hdmi_eld sink_eld; + 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 + */ + bool sink_present[INTEL_HDMI_PINS]; + bool sink_eldv[INTEL_HDMI_PINS]; + 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 { @@ -183,6 +212,19 @@ static struct cea_channel_speaker_allocation channel_allocations[] = { { .ca_index = 0x31, .speakers = { FRW, FLW, RR, RL, FC, LFE, FR, FL } }, }; + +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; +} + /* * HDMI routines */ @@ -283,12 +325,12 @@ static void hdmi_debug_channel_mapping(struct hda_codec *codec, hda_nid_t nid) #endif } -static void hdmi_parse_eld(struct hda_codec *codec) +static void hdmi_parse_eld(struct hda_codec *codec, int index) { struct intel_hdmi_spec *spec = codec->spec; - struct hdmi_eld *eld = &spec->sink_eld; + struct hdmi_eld *eld = &spec->sink_eld[index]; - if (!snd_hdmi_get_eld(eld, codec, pin_nid)) + if (!snd_hdmi_get_eld(eld, codec, spec->pin[index])) snd_hdmi_show_eld(eld); } @@ -395,7 +437,7 @@ 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 = &spec->sink_eld; + struct hdmi_eld *eld; int i; int spk_mask = 0; int channels = 1 + (ai->CC02_CT47 & 0x7); @@ -407,6 +449,11 @@ static int hdmi_setup_channel_allocation(struct hda_codec *codec, hda_nid_t nid, 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 @@ -469,6 +516,9 @@ static void hdmi_setup_channel_mapping(struct hda_codec *codec, hda_nid_t nid, 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, @@ -479,8 +529,16 @@ static void hdmi_setup_audio_infoframe(struct hda_codec *codec, hda_nid_t nid, hdmi_setup_channel_allocation(codec, nid, &ai); hdmi_setup_channel_mapping(codec, nid, &ai); - hdmi_fill_audio_infoframe(codec, pin_nid, &ai); - hdmi_start_infoframe_trans(codec, pin_nid); + for (i = 0; i < spec->num_pins; i++) { + if (spec->pin_cvt[i] != nid) + continue; + if (spec->sink_present[i] != true) + continue; + + pin_nid = spec->pin[i]; + hdmi_fill_audio_infoframe(codec, pin_nid, &ai); + hdmi_start_infoframe_trans(codec, pin_nid); + } } @@ -490,27 +548,39 @@ static void hdmi_setup_audio_infoframe(struct hda_codec *codec, hda_nid_t nid, 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: Presence_Detect=%d ELD_Valid=%d\n", - pind, eldv); + "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_present[index] = pind; + spec->sink_eldv[index] = eldv; if (pind && eldv) { - hdmi_parse_eld(codec); + hdmi_parse_eld(codec, 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 content protection event: SUBTAG=0x%x CP_STATE=%d CP_READY=%d\n", + "HDMI CP event: PIN=%d SUBTAG=0x%x CP_STATE=%d CP_READY=%d\n", + tag, subtag, cp_state, cp_ready); @@ -525,10 +595,11 @@ static void hdmi_non_intrinsic_event(struct hda_codec *codec, unsigned int res) 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 (tag != INTEL_HDMI_EVENT_TAG) { + if (hda_node_index(spec->pin, tag) < 0) { snd_printd(KERN_INFO "Unexpected HDMI event tag 0x%x\n", tag); return; } @@ -549,10 +620,10 @@ static int intel_hdmi_playback_pcm_prepare(struct hda_pcm_stream *hinfo, unsigned int format, struct snd_pcm_substream *substream) { - hdmi_set_channel_count(codec, cvt_nid, + hdmi_set_channel_count(codec, hinfo->nid, substream->runtime->channels); - hdmi_setup_audio_infoframe(codec, cvt_nid, substream); + hdmi_setup_audio_infoframe(codec, hinfo->nid, substream); snd_hda_codec_setup_stream(codec, hinfo->nid, stream_tag, 0, format); return 0; @@ -563,8 +634,14 @@ static int intel_hdmi_playback_pcm_cleanup(struct hda_pcm_stream *hinfo, struct snd_pcm_substream *substream) { struct intel_hdmi_spec *spec = codec->spec; + int i; + + for (i = 0; i < spec->num_pins; i++) { + if (spec->pin_cvt[i] != hinfo->nid) + continue; - hdmi_stop_infoframe_trans(codec, pin_nid); + hdmi_stop_infoframe_trans(codec, spec->pin[i]); + } snd_hda_codec_cleanup_stream(codec, hinfo->nid); return 0; @@ -583,17 +660,19 @@ static struct hda_pcm_stream intel_hdmi_pcm_playback = { static int intel_hdmi_build_pcms(struct hda_codec *codec) { struct intel_hdmi_spec *spec = codec->spec; - struct hda_pcm *info = &spec->pcm_rec; + struct hda_pcm *info = spec->pcm_rec; + int i; - codec->num_pcms = 1; + codec->num_pcms = spec->num_cvts; codec->pcm_info = info; - /* NID to query formats and rates and setup streams */ - intel_hdmi_pcm_playback.nid = cvt_nid; - - info->name = "INTEL HDMI"; - info->pcm_type = HDA_PCM_TYPE_HDMI; - info->stream[SNDRV_PCM_STREAM_PLAYBACK] = intel_hdmi_pcm_playback; + for (i = 0; i < codec->num_pcms; i++, info++) { + info->name = intel_hdmi_pcm_names[i]; + info->pcm_type = HDA_PCM_TYPE_HDMI; + info->stream[SNDRV_PCM_STREAM_PLAYBACK] = + intel_hdmi_pcm_playback; + info->stream[SNDRV_PCM_STREAM_PLAYBACK].nid = spec->cvt[i]; + } return 0; } @@ -602,29 +681,39 @@ static int intel_hdmi_build_controls(struct hda_codec *codec) { struct intel_hdmi_spec *spec = codec->spec; int err; + int i; - err = snd_hda_create_spdif_out_ctls(codec, cvt_nid); - if (err < 0) - return err; + for (i = 0; i < codec->num_pcms; i++) { + err = snd_hda_create_spdif_out_ctls(codec, spec->cvt[i]); + if (err < 0) + return err; + } return 0; } static int intel_hdmi_init(struct hda_codec *codec) { - hdmi_enable_output(codec, pin_nid); + struct intel_hdmi_spec *spec = codec->spec; + int i; - snd_hda_codec_write(codec, pin_nid, 0, - AC_VERB_SET_UNSOLICITED_ENABLE, - AC_USRSP_EN | INTEL_HDMI_EVENT_TAG); + for (i = 0; spec->pin[i]; i++) { + hdmi_enable_output(codec, spec->pin[i]); + snd_hda_codec_write(codec, spec->pin[i], 0, + AC_VERB_SET_UNSOLICITED_ENABLE, + AC_USRSP_EN | spec->pin[i]); + } return 0; } static void intel_hdmi_free(struct hda_codec *codec) { struct intel_hdmi_spec *spec = codec->spec; + int i; + + for (i = 0; i < spec->num_pins; i++) + snd_hda_eld_proc_free(codec, &spec->sink_eld[i]); - snd_hda_eld_proc_free(codec, &spec->sink_eld); kfree(spec); } @@ -636,18 +725,38 @@ static struct hda_codec_ops intel_hdmi_patch_ops = { .unsol_event = intel_hdmi_unsol_event, }; -static int do_patch_intel_hdmi(struct hda_codec *codec) +static struct intel_hdmi_spec static_specs[] = { + { + .num_cvts = 1, + .num_pins = 1, + .cvt = { 0x2 }, + .pin = { 0x3 }, + .pin_cvt = { 0x2 }, + }, + { + .num_cvts = 2, + .num_pins = 3, + .cvt = { 0x2, 0x3 }, + .pin = { 0x4, 0x5, 0x6 }, + .pin_cvt = { 0x2, 0x2, 0x2 }, + }, +}; + +static int do_patch_intel_hdmi(struct hda_codec *codec, int spec_id) { struct intel_hdmi_spec *spec; + int i; spec = kzalloc(sizeof(*spec), GFP_KERNEL); if (spec == NULL) return -ENOMEM; + *spec = static_specs[spec_id]; codec->spec = spec; codec->patch_ops = intel_hdmi_patch_ops; - snd_hda_eld_proc_new(codec, &spec->sink_eld); + for (i = 0; i < spec->num_pins; i++) + snd_hda_eld_proc_new(codec, &spec->sink_eld[i], i); init_channel_allocations(); @@ -656,16 +765,12 @@ static int do_patch_intel_hdmi(struct hda_codec *codec) static int patch_intel_hdmi(struct hda_codec *codec) { - cvt_nid = 0x02; - pin_nid = 0x03; - return do_patch_intel_hdmi(codec); + return do_patch_intel_hdmi(codec, 0); } static int patch_intel_hdmi_ibexpeak(struct hda_codec *codec) { - cvt_nid = 0x02; - pin_nid = 0x04; - return do_patch_intel_hdmi(codec); + return do_patch_intel_hdmi(codec, 1); } static struct hda_codec_preset snd_hda_preset_intelhdmi[] = { -- 2.7.4