721 lines
20 KiB
C
721 lines
20 KiB
C
/*
|
|
*
|
|
* 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"
|
|
|
|
static hda_nid_t cvt_nid; /* audio converter */
|
|
static hda_nid_t pin_nid; /* 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;
|
|
};
|
|
|
|
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)
|
|
{
|
|
/* Unmute */
|
|
if (get_wcaps(codec, pin_nid) & AC_WCAP_OUT_AMP)
|
|
snd_hda_codec_write(codec, pin_nid, 0,
|
|
AC_VERB_SET_AMP_GAIN_MUTE, AMP_OUT_UNMUTE);
|
|
/* Enable pin out */
|
|
snd_hda_codec_write(codec, pin_nid, 0,
|
|
AC_VERB_SET_PIN_WIDGET_CONTROL, PIN_OUT);
|
|
}
|
|
|
|
/*
|
|
* Enable Audio InfoFrame Transmission
|
|
*/
|
|
static void hdmi_start_infoframe_trans(struct hda_codec *codec)
|
|
{
|
|
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)
|
|
{
|
|
hdmi_set_dip_index(codec, pin_nid, 0x0, 0x0);
|
|
snd_hda_codec_write(codec, pin_nid, 0, AC_VERB_SET_HDMI_DIP_XMIT,
|
|
AC_DIPXMIT_DISABLE);
|
|
}
|
|
|
|
static int hdmi_get_channel_count(struct hda_codec *codec)
|
|
{
|
|
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;
|
|
u8 sum = 0;
|
|
int i;
|
|
|
|
hdmi_debug_dip_size(codec);
|
|
hdmi_clear_dip_buffers(codec); /* be paranoid */
|
|
|
|
for (i = 0; i < sizeof(ai); i++)
|
|
sum += params[i];
|
|
ai->checksum = - sum;
|
|
|
|
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 (channels <= 2)
|
|
return 0;
|
|
|
|
/*
|
|
* HDMI sink's ELD info cannot always be retrieved for now, e.g.
|
|
* in console or for audio devices. Assume the highest speakers
|
|
* configuration, to _not_ prohibit multi-channel audio playback.
|
|
*/
|
|
if (!eld->spk_alloc)
|
|
eld->spk_alloc = 0xffff;
|
|
|
|
/*
|
|
* expand ELD's speaker allocation mask
|
|
*
|
|
* ELD tells the speaker mask in a compact(paired) form,
|
|
* expand ELD's notions to match the ones used by Audio InfoFrame.
|
|
*/
|
|
for (i = 0; i < ARRAY_SIZE(eld_speaker_allocation_bits); i++) {
|
|
if (eld->spk_alloc & (1 << i))
|
|
spk_mask |= eld_speaker_allocation_bits[i];
|
|
}
|
|
|
|
/* search for the first working match in the CA table */
|
|
for (i = 0; i < ARRAY_SIZE(channel_allocations); i++) {
|
|
if (channels == channel_allocations[i].channels &&
|
|
(spk_mask & channel_allocations[i].spk_mask) ==
|
|
channel_allocations[i].spk_mask) {
|
|
ai->CA = channel_allocations[i].ca_index;
|
|
break;
|
|
}
|
|
}
|
|
|
|
snd_print_channel_allocation(eld->spk_alloc, buf, sizeof(buf));
|
|
snd_printdd(KERN_INFO
|
|
"HDMI: select CA 0x%x for %d-channel allocation: %s\n",
|
|
ai->CA, channels, buf);
|
|
|
|
return ai->CA;
|
|
}
|
|
|
|
static void hdmi_setup_channel_mapping(struct hda_codec *codec,
|
|
struct hdmi_audio_infoframe *ai)
|
|
{
|
|
int i;
|
|
|
|
if (!ai->CA)
|
|
return;
|
|
|
|
/*
|
|
* TODO: adjust channel mapping if necessary
|
|
* ALSA sequence is front/surr/clfe/side?
|
|
*/
|
|
|
|
for (i = 0; i < 8; i++)
|
|
snd_hda_codec_write(codec, cvt_nid, 0,
|
|
AC_VERB_SET_HDMI_CHAN_SLOT,
|
|
(i << 4) | i);
|
|
|
|
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);
|
|
hdmi_start_infoframe_trans(codec);
|
|
}
|
|
|
|
|
|
/*
|
|
* 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_stop_infoframe_trans(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);
|
|
|
|
return 0;
|
|
}
|
|
|
|
static struct hda_pcm_stream intel_hdmi_pcm_playback = {
|
|
.substreams = 1,
|
|
.channels_min = 2,
|
|
.channels_max = 8,
|
|
.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;
|
|
|
|
/* 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;
|
|
|
|
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)
|
|
{
|
|
hdmi_enable_output(codec);
|
|
|
|
snd_hda_codec_write(codec, pin_nid, 0,
|
|
AC_VERB_SET_UNSOLICITED_ENABLE,
|
|
AC_USRSP_EN | INTEL_HDMI_EVENT_TAG);
|
|
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 do_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 int patch_intel_hdmi(struct hda_codec *codec)
|
|
{
|
|
cvt_nid = 0x02;
|
|
pin_nid = 0x03;
|
|
return do_patch_intel_hdmi(codec);
|
|
}
|
|
|
|
static int patch_intel_hdmi_ibexpeak(struct hda_codec *codec)
|
|
{
|
|
cvt_nid = 0x02;
|
|
pin_nid = 0x04;
|
|
return do_patch_intel_hdmi(codec);
|
|
}
|
|
|
|
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 = 0x80862804, .name = "G45 DEVIBX", .patch = patch_intel_hdmi_ibexpeak },
|
|
{ .id = 0x80860054, .name = "Q57 DEVIBX", .patch = patch_intel_hdmi_ibexpeak },
|
|
{ .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:80862804");
|
|
MODULE_ALIAS("snd-hda-codec-id:80860054");
|
|
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)
|