![Wu Fengguang](/assets/img/avatar_default.png)
Also change printk level for the two others. Signed-off-by: Wu Fengguang <fengguang.wu@intel.com> Signed-off-by: Takashi Iwai <tiwai@suse.de>
850 lines
23 KiB
C
850 lines
23 KiB
C
/*
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*
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* patch_hdmi.c - routines for HDMI/DisplayPort codecs
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*
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* Copyright(c) 2008-2010 Intel Corporation. All rights reserved.
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*
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* Authors:
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* Wu Fengguang <wfg@linux.intel.com>
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*
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* Maintained by:
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* Wu Fengguang <wfg@linux.intel.com>
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*
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* This program is free software; you can redistribute it and/or modify it
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* under the terms of the GNU General Public License as published by the Free
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* Software Foundation; either version 2 of the License, or (at your option)
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* any later version.
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*
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* This program is distributed in the hope that it will be useful, but
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* WITHOUT ANY WARRANTY; without even the implied warranty of MERCHANTABILITY
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* or FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License
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* for more details.
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*
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* You should have received a copy of the GNU General Public License
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* along with this program; if not, write to the Free Software Foundation,
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* Inc., 59 Temple Place - Suite 330, Boston, MA 02111-1307, USA.
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*/
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struct hdmi_spec {
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int num_cvts;
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int num_pins;
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hda_nid_t cvt[MAX_HDMI_CVTS+1]; /* audio sources */
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hda_nid_t pin[MAX_HDMI_PINS+1]; /* audio sinks */
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/*
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* source connection for each pin
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*/
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hda_nid_t pin_cvt[MAX_HDMI_PINS+1];
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/*
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* HDMI sink attached to each pin
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*/
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struct hdmi_eld sink_eld[MAX_HDMI_PINS];
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/*
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* export one pcm per pipe
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*/
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struct hda_pcm pcm_rec[MAX_HDMI_CVTS];
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/*
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* nvhdmi specific
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*/
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struct hda_multi_out multiout;
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unsigned int codec_type;
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};
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struct hdmi_audio_infoframe {
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u8 type; /* 0x84 */
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u8 ver; /* 0x01 */
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u8 len; /* 0x0a */
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u8 checksum; /* PB0 */
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u8 CC02_CT47; /* CC in bits 0:2, CT in 4:7 */
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u8 SS01_SF24;
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u8 CXT04;
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u8 CA;
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u8 LFEPBL01_LSV36_DM_INH7;
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u8 reserved[5]; /* PB6 - PB10 */
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};
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/*
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* CEA speaker placement:
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*
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* FLH FCH FRH
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* FLW FL FLC FC FRC FR FRW
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*
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* LFE
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* TC
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*
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* RL RLC RC RRC RR
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*
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* The Left/Right Surround channel _notions_ LS/RS in SMPTE 320M corresponds to
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* CEA RL/RR; The SMPTE channel _assignment_ C/LFE is swapped to CEA LFE/FC.
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*/
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enum cea_speaker_placement {
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FL = (1 << 0), /* Front Left */
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FC = (1 << 1), /* Front Center */
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FR = (1 << 2), /* Front Right */
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FLC = (1 << 3), /* Front Left Center */
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FRC = (1 << 4), /* Front Right Center */
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RL = (1 << 5), /* Rear Left */
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RC = (1 << 6), /* Rear Center */
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RR = (1 << 7), /* Rear Right */
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RLC = (1 << 8), /* Rear Left Center */
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RRC = (1 << 9), /* Rear Right Center */
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LFE = (1 << 10), /* Low Frequency Effect */
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FLW = (1 << 11), /* Front Left Wide */
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FRW = (1 << 12), /* Front Right Wide */
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FLH = (1 << 13), /* Front Left High */
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FCH = (1 << 14), /* Front Center High */
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FRH = (1 << 15), /* Front Right High */
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TC = (1 << 16), /* Top Center */
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};
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/*
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* ELD SA bits in the CEA Speaker Allocation data block
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*/
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static int eld_speaker_allocation_bits[] = {
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[0] = FL | FR,
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[1] = LFE,
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[2] = FC,
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[3] = RL | RR,
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[4] = RC,
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[5] = FLC | FRC,
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[6] = RLC | RRC,
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/* the following are not defined in ELD yet */
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[7] = FLW | FRW,
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[8] = FLH | FRH,
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[9] = TC,
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[10] = FCH,
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};
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struct cea_channel_speaker_allocation {
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int ca_index;
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int speakers[8];
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/* derived values, just for convenience */
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int channels;
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int spk_mask;
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};
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/*
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* ALSA sequence is:
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*
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* surround40 surround41 surround50 surround51 surround71
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* ch0 front left = = = =
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* ch1 front right = = = =
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* ch2 rear left = = = =
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* ch3 rear right = = = =
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* ch4 LFE center center center
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* ch5 LFE LFE
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* ch6 side left
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* ch7 side right
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*
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* surround71 = {FL, FR, RLC, RRC, FC, LFE, RL, RR}
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*/
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static int hdmi_channel_mapping[0x32][8] = {
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/* stereo */
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[0x00] = { 0x00, 0x11, 0xf2, 0xf3, 0xf4, 0xf5, 0xf6, 0xf7 },
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/* 2.1 */
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[0x01] = { 0x00, 0x11, 0x22, 0xf3, 0xf4, 0xf5, 0xf6, 0xf7 },
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/* Dolby Surround */
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[0x02] = { 0x00, 0x11, 0x23, 0xf2, 0xf4, 0xf5, 0xf6, 0xf7 },
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/* surround40 */
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[0x08] = { 0x00, 0x11, 0x24, 0x35, 0xf3, 0xf2, 0xf6, 0xf7 },
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/* 4ch */
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[0x03] = { 0x00, 0x11, 0x23, 0x32, 0x44, 0xf5, 0xf6, 0xf7 },
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/* surround41 */
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[0x09] = { 0x00, 0x11, 0x24, 0x34, 0x43, 0xf2, 0xf6, 0xf7 },
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/* surround50 */
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[0x0a] = { 0x00, 0x11, 0x24, 0x35, 0x43, 0xf2, 0xf6, 0xf7 },
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/* surround51 */
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[0x0b] = { 0x00, 0x11, 0x24, 0x35, 0x43, 0x52, 0xf6, 0xf7 },
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/* 7.1 */
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[0x13] = { 0x00, 0x11, 0x26, 0x37, 0x43, 0x52, 0x64, 0x75 },
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};
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/*
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* This is an ordered list!
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*
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* The preceding ones have better chances to be selected by
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* hdmi_setup_channel_allocation().
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*/
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static struct cea_channel_speaker_allocation channel_allocations[] = {
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/* channel: 7 6 5 4 3 2 1 0 */
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{ .ca_index = 0x00, .speakers = { 0, 0, 0, 0, 0, 0, FR, FL } },
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/* 2.1 */
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{ .ca_index = 0x01, .speakers = { 0, 0, 0, 0, 0, LFE, FR, FL } },
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/* Dolby Surround */
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{ .ca_index = 0x02, .speakers = { 0, 0, 0, 0, FC, 0, FR, FL } },
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/* surround40 */
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{ .ca_index = 0x08, .speakers = { 0, 0, RR, RL, 0, 0, FR, FL } },
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/* surround41 */
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{ .ca_index = 0x09, .speakers = { 0, 0, RR, RL, 0, LFE, FR, FL } },
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/* surround50 */
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{ .ca_index = 0x0a, .speakers = { 0, 0, RR, RL, FC, 0, FR, FL } },
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/* surround51 */
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{ .ca_index = 0x0b, .speakers = { 0, 0, RR, RL, FC, LFE, FR, FL } },
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/* 6.1 */
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{ .ca_index = 0x0f, .speakers = { 0, RC, RR, RL, FC, LFE, FR, FL } },
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/* surround71 */
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{ .ca_index = 0x13, .speakers = { RRC, RLC, RR, RL, FC, LFE, FR, FL } },
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{ .ca_index = 0x03, .speakers = { 0, 0, 0, 0, FC, LFE, FR, FL } },
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{ .ca_index = 0x04, .speakers = { 0, 0, 0, RC, 0, 0, FR, FL } },
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{ .ca_index = 0x05, .speakers = { 0, 0, 0, RC, 0, LFE, FR, FL } },
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{ .ca_index = 0x06, .speakers = { 0, 0, 0, RC, FC, 0, FR, FL } },
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{ .ca_index = 0x07, .speakers = { 0, 0, 0, RC, FC, LFE, FR, FL } },
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{ .ca_index = 0x0c, .speakers = { 0, RC, RR, RL, 0, 0, FR, FL } },
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{ .ca_index = 0x0d, .speakers = { 0, RC, RR, RL, 0, LFE, FR, FL } },
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{ .ca_index = 0x0e, .speakers = { 0, RC, RR, RL, FC, 0, FR, FL } },
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{ .ca_index = 0x10, .speakers = { RRC, RLC, RR, RL, 0, 0, FR, FL } },
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{ .ca_index = 0x11, .speakers = { RRC, RLC, RR, RL, 0, LFE, FR, FL } },
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{ .ca_index = 0x12, .speakers = { RRC, RLC, RR, RL, FC, 0, FR, FL } },
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{ .ca_index = 0x14, .speakers = { FRC, FLC, 0, 0, 0, 0, FR, FL } },
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{ .ca_index = 0x15, .speakers = { FRC, FLC, 0, 0, 0, LFE, FR, FL } },
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{ .ca_index = 0x16, .speakers = { FRC, FLC, 0, 0, FC, 0, FR, FL } },
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{ .ca_index = 0x17, .speakers = { FRC, FLC, 0, 0, FC, LFE, FR, FL } },
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{ .ca_index = 0x18, .speakers = { FRC, FLC, 0, RC, 0, 0, FR, FL } },
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{ .ca_index = 0x19, .speakers = { FRC, FLC, 0, RC, 0, LFE, FR, FL } },
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{ .ca_index = 0x1a, .speakers = { FRC, FLC, 0, RC, FC, 0, FR, FL } },
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{ .ca_index = 0x1b, .speakers = { FRC, FLC, 0, RC, FC, LFE, FR, FL } },
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{ .ca_index = 0x1c, .speakers = { FRC, FLC, RR, RL, 0, 0, FR, FL } },
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{ .ca_index = 0x1d, .speakers = { FRC, FLC, RR, RL, 0, LFE, FR, FL } },
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{ .ca_index = 0x1e, .speakers = { FRC, FLC, RR, RL, FC, 0, FR, FL } },
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{ .ca_index = 0x1f, .speakers = { FRC, FLC, RR, RL, FC, LFE, FR, FL } },
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{ .ca_index = 0x20, .speakers = { 0, FCH, RR, RL, FC, 0, FR, FL } },
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{ .ca_index = 0x21, .speakers = { 0, FCH, RR, RL, FC, LFE, FR, FL } },
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{ .ca_index = 0x22, .speakers = { TC, 0, RR, RL, FC, 0, FR, FL } },
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{ .ca_index = 0x23, .speakers = { TC, 0, RR, RL, FC, LFE, FR, FL } },
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{ .ca_index = 0x24, .speakers = { FRH, FLH, RR, RL, 0, 0, FR, FL } },
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{ .ca_index = 0x25, .speakers = { FRH, FLH, RR, RL, 0, LFE, FR, FL } },
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{ .ca_index = 0x26, .speakers = { FRW, FLW, RR, RL, 0, 0, FR, FL } },
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{ .ca_index = 0x27, .speakers = { FRW, FLW, RR, RL, 0, LFE, FR, FL } },
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{ .ca_index = 0x28, .speakers = { TC, RC, RR, RL, FC, 0, FR, FL } },
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{ .ca_index = 0x29, .speakers = { TC, RC, RR, RL, FC, LFE, FR, FL } },
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{ .ca_index = 0x2a, .speakers = { FCH, RC, RR, RL, FC, 0, FR, FL } },
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{ .ca_index = 0x2b, .speakers = { FCH, RC, RR, RL, FC, LFE, FR, FL } },
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{ .ca_index = 0x2c, .speakers = { TC, FCH, RR, RL, FC, 0, FR, FL } },
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{ .ca_index = 0x2d, .speakers = { TC, FCH, RR, RL, FC, LFE, FR, FL } },
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{ .ca_index = 0x2e, .speakers = { FRH, FLH, RR, RL, FC, 0, FR, FL } },
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{ .ca_index = 0x2f, .speakers = { FRH, FLH, RR, RL, FC, LFE, FR, FL } },
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{ .ca_index = 0x30, .speakers = { FRW, FLW, RR, RL, FC, 0, FR, FL } },
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{ .ca_index = 0x31, .speakers = { FRW, FLW, RR, RL, FC, LFE, FR, FL } },
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};
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/*
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* HDMI routines
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*/
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static int hda_node_index(hda_nid_t *nids, hda_nid_t nid)
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{
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int i;
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for (i = 0; nids[i]; i++)
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if (nids[i] == nid)
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return i;
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snd_printk(KERN_WARNING "HDMI: nid %d not registered\n", nid);
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return -EINVAL;
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}
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static void hdmi_get_show_eld(struct hda_codec *codec, hda_nid_t pin_nid,
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struct hdmi_eld *eld)
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{
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if (!snd_hdmi_get_eld(eld, codec, pin_nid))
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snd_hdmi_show_eld(eld);
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}
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#ifdef BE_PARANOID
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static void hdmi_get_dip_index(struct hda_codec *codec, hda_nid_t pin_nid,
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int *packet_index, int *byte_index)
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{
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int val;
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val = snd_hda_codec_read(codec, pin_nid, 0,
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AC_VERB_GET_HDMI_DIP_INDEX, 0);
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*packet_index = val >> 5;
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*byte_index = val & 0x1f;
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}
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#endif
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static void hdmi_set_dip_index(struct hda_codec *codec, hda_nid_t pin_nid,
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int packet_index, int byte_index)
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{
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int val;
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val = (packet_index << 5) | (byte_index & 0x1f);
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snd_hda_codec_write(codec, pin_nid, 0, AC_VERB_SET_HDMI_DIP_INDEX, val);
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}
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static void hdmi_write_dip_byte(struct hda_codec *codec, hda_nid_t pin_nid,
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unsigned char val)
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{
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snd_hda_codec_write(codec, pin_nid, 0, AC_VERB_SET_HDMI_DIP_DATA, val);
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}
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static void hdmi_enable_output(struct hda_codec *codec, hda_nid_t pin_nid)
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{
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/* Unmute */
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if (get_wcaps(codec, pin_nid) & AC_WCAP_OUT_AMP)
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snd_hda_codec_write(codec, pin_nid, 0,
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AC_VERB_SET_AMP_GAIN_MUTE, AMP_OUT_UNMUTE);
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/* Enable pin out */
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snd_hda_codec_write(codec, pin_nid, 0,
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AC_VERB_SET_PIN_WIDGET_CONTROL, PIN_OUT);
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}
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static int hdmi_get_channel_count(struct hda_codec *codec, hda_nid_t nid)
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{
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return 1 + snd_hda_codec_read(codec, nid, 0,
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AC_VERB_GET_CVT_CHAN_COUNT, 0);
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}
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static void hdmi_set_channel_count(struct hda_codec *codec,
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hda_nid_t nid, int chs)
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{
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if (chs != hdmi_get_channel_count(codec, nid))
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snd_hda_codec_write(codec, nid, 0,
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AC_VERB_SET_CVT_CHAN_COUNT, chs - 1);
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}
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/*
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* Channel mapping routines
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*/
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/*
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* Compute derived values in channel_allocations[].
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*/
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static void init_channel_allocations(void)
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{
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int i, j;
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struct cea_channel_speaker_allocation *p;
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for (i = 0; i < ARRAY_SIZE(channel_allocations); i++) {
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p = channel_allocations + i;
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p->channels = 0;
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p->spk_mask = 0;
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for (j = 0; j < ARRAY_SIZE(p->speakers); j++)
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if (p->speakers[j]) {
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p->channels++;
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p->spk_mask |= p->speakers[j];
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}
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}
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}
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/*
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* The transformation takes two steps:
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*
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* eld->spk_alloc => (eld_speaker_allocation_bits[]) => spk_mask
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* spk_mask => (channel_allocations[]) => ai->CA
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*
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* TODO: it could select the wrong CA from multiple candidates.
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*/
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static int hdmi_setup_channel_allocation(struct hda_codec *codec, hda_nid_t nid,
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struct hdmi_audio_infoframe *ai)
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{
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struct hdmi_spec *spec = codec->spec;
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struct hdmi_eld *eld;
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int i;
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int spk_mask = 0;
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int channels = 1 + (ai->CC02_CT47 & 0x7);
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char buf[SND_PRINT_CHANNEL_ALLOCATION_ADVISED_BUFSIZE];
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/*
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* CA defaults to 0 for basic stereo audio
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*/
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if (channels <= 2)
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return 0;
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i = hda_node_index(spec->pin_cvt, nid);
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if (i < 0)
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return 0;
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eld = &spec->sink_eld[i];
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/*
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* HDMI sink's ELD info cannot always be retrieved for now, e.g.
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* in console or for audio devices. Assume the highest speakers
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* configuration, to _not_ prohibit multi-channel audio playback.
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*/
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if (!eld->spk_alloc)
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eld->spk_alloc = 0xffff;
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/*
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* expand ELD's speaker allocation mask
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*
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* ELD tells the speaker mask in a compact(paired) form,
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* expand ELD's notions to match the ones used by Audio InfoFrame.
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*/
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for (i = 0; i < ARRAY_SIZE(eld_speaker_allocation_bits); i++) {
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if (eld->spk_alloc & (1 << i))
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spk_mask |= eld_speaker_allocation_bits[i];
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}
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/* search for the first working match in the CA table */
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for (i = 0; i < ARRAY_SIZE(channel_allocations); i++) {
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if (channels == channel_allocations[i].channels &&
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(spk_mask & channel_allocations[i].spk_mask) ==
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channel_allocations[i].spk_mask) {
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ai->CA = channel_allocations[i].ca_index;
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break;
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}
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}
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snd_print_channel_allocation(eld->spk_alloc, buf, sizeof(buf));
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snd_printdd("HDMI: select CA 0x%x for %d-channel allocation: %s\n",
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ai->CA, channels, buf);
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return ai->CA;
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}
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static void hdmi_debug_channel_mapping(struct hda_codec *codec,
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hda_nid_t pin_nid)
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{
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#ifdef CONFIG_SND_DEBUG_VERBOSE
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int i;
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int slot;
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for (i = 0; i < 8; i++) {
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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_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;
|
|
}
|
|
|