/* * * patch_hdmi.c - routines for HDMI/DisplayPort codecs * * Copyright(c) 2008-2010 Intel Corporation. All rights reserved. * * Authors: * Wu Fengguang * * Maintained by: * Wu Fengguang * * 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; /* misc flags */ /* PD bit indicates only the update, not the current state */ unsigned int old_pin_detect:1; }; 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("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_NOTICE "HDMI: channel mapping failed\n"); break; } } hdmi_debug_channel_mapping(codec, pin_nid); } /* * Audio InfoFrame routines */ /* * Enable Audio InfoFrame Transmission */ static void hdmi_start_infoframe_trans(struct hda_codec *codec, hda_nid_t pin_nid) { hdmi_set_dip_index(codec, pin_nid, 0x0, 0x0); snd_hda_codec_write(codec, pin_nid, 0, AC_VERB_SET_HDMI_DIP_XMIT, AC_DIPXMIT_BEST); } /* * Disable Audio InfoFrame Transmission */ static void hdmi_stop_infoframe_trans(struct hda_codec *codec, hda_nid_t pin_nid) { hdmi_set_dip_index(codec, pin_nid, 0x0, 0x0); snd_hda_codec_write(codec, pin_nid, 0, AC_VERB_SET_HDMI_DIP_XMIT, AC_DIPXMIT_DISABLE); } static void hdmi_debug_dip_size(struct hda_codec *codec, hda_nid_t pin_nid) { #ifdef CONFIG_SND_DEBUG_VERBOSE int i; int size; size = snd_hdmi_get_eld_size(codec, pin_nid); printk(KERN_DEBUG "HDMI: ELD buf size is %d\n", size); for (i = 0; i < 8; i++) { size = snd_hda_codec_read(codec, pin_nid, 0, AC_VERB_GET_HDMI_DIP_SIZE, i); printk(KERN_DEBUG "HDMI: DIP GP[%d] buf size is %d\n", i, size); } #endif } static void hdmi_clear_dip_buffers(struct hda_codec *codec, hda_nid_t pin_nid) { #ifdef BE_PARANOID int i, j; int size; int pi, bi; for (i = 0; i < 8; i++) { size = snd_hda_codec_read(codec, pin_nid, 0, AC_VERB_GET_HDMI_DIP_SIZE, i); if (size == 0) continue; hdmi_set_dip_index(codec, pin_nid, i, 0x0); for (j = 1; j < 1000; j++) { hdmi_write_dip_byte(codec, pin_nid, 0x0); hdmi_get_dip_index(codec, pin_nid, &pi, &bi); if (pi != i) snd_printd(KERN_INFO "dip index %d: %d != %d\n", bi, pi, i); if (bi == 0) /* byte index wrapped around */ break; } snd_printd(KERN_INFO "HDMI: DIP GP[%d] buf reported size=%d, written=%d\n", i, size, j); } #endif } static void hdmi_checksum_audio_infoframe(struct hdmi_audio_infoframe *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)) { snd_printdd("hdmi_setup_audio_infoframe: " "cvt=%d pin=%d channels=%d\n", nid, pin_nid, substream->runtime->channels); 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_present_sense(struct hda_codec *codec, hda_nid_t pin_nid, struct hdmi_eld *eld); 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; if (spec->old_pin_detect) { if (pind) hdmi_present_sense(codec, tag, &spec->sink_eld[index]); pind = spec->sink_eld[index].monitor_present; } 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 */ /* HBR should be Non-PCM, 8 channels */ #define is_hbr_format(format) \ ((format & AC_FMT_TYPE_NON_PCM) && (format & AC_FMT_CHAN_MASK) == 7) static int hdmi_setup_stream(struct hda_codec *codec, hda_nid_t nid, u32 stream_tag, int format) { struct hdmi_spec *spec = codec->spec; int tag; int fmt; int pinctl; int new_pinctl = 0; int i; for (i = 0; i < spec->num_pins; i++) { if (spec->pin_cvt[i] != nid) continue; if (!(snd_hda_query_pin_caps(codec, spec->pin[i]) & AC_PINCAP_HBR)) continue; pinctl = snd_hda_codec_read(codec, spec->pin[i], 0, AC_VERB_GET_PIN_WIDGET_CONTROL, 0); new_pinctl = pinctl & ~AC_PINCTL_EPT; if (is_hbr_format(format)) new_pinctl |= AC_PINCTL_EPT_HBR; else new_pinctl |= AC_PINCTL_EPT_NATIVE; snd_printdd("hdmi_setup_stream: " "NID=0x%x, %spinctl=0x%x\n", spec->pin[i], pinctl == new_pinctl ? "" : "new-", new_pinctl); if (pinctl != new_pinctl) snd_hda_codec_write(codec, spec->pin[i], 0, AC_VERB_SET_PIN_WIDGET_CONTROL, new_pinctl); } if (is_hbr_format(format) && !new_pinctl) { snd_printdd("hdmi_setup_stream: HBR is not supported\n"); return -EINVAL; } 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); return 0; } /* * 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 -E2BIG; } 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 -E2BIG; } 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: hdmi_add_cvt(codec, nid); 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; hdmi_add_pin(codec, nid); break; } } /* * G45/IbexPeak don't support EPSS: the unsolicited pin hot plug event * can be lost and presence sense verb will become inaccurate if the * HDA link is powered off at hot plug or hw initialization time. */ #ifdef CONFIG_SND_HDA_POWER_SAVE if (!(snd_hda_param_read(codec, codec->afg, AC_PAR_POWER_STATE) & AC_PWRST_EPSS)) codec->bus->power_keep_link_on = 1; #endif return 0; }