722 lines
21 KiB
C
722 lines
21 KiB
C
/*
|
|
* ALSA SoC HDMI Audio Layer for Freescale i.MX
|
|
*
|
|
* Copyright (C) 2011-2014 Freescale Semiconductor, Inc.
|
|
*
|
|
* Some code from patch_hdmi.c
|
|
* Copyright (c) 2008-2010 Intel Corporation. All rights reserved.
|
|
* Copyright (c) 2006 ATI Technologies Inc.
|
|
* Copyright (c) 2008 NVIDIA Corp. All rights reserved.
|
|
* Copyright (c) 2008 Wei Ni <wni@nvidia.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.,
|
|
* 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA.
|
|
*/
|
|
|
|
#include <linux/init.h>
|
|
#include <linux/module.h>
|
|
#include <linux/dma-mapping.h>
|
|
#include <linux/slab.h>
|
|
#include <linux/clk.h>
|
|
#include <linux/delay.h>
|
|
#include <linux/mfd/mxc-hdmi-core.h>
|
|
#include <sound/pcm.h>
|
|
#include <sound/soc.h>
|
|
#include <sound/asoundef.h>
|
|
|
|
#include <video/mxc_hdmi.h>
|
|
|
|
#include "imx-hdmi.h"
|
|
|
|
|
|
static struct mxc_edid_cfg edid_cfg;
|
|
|
|
static u32 playback_rates[HDMI_MAX_RATES];
|
|
static u32 playback_sample_size[HDMI_MAX_SAMPLE_SIZE];
|
|
static u32 playback_channels[HDMI_MAX_CHANNEL_CONSTRAINTS];
|
|
|
|
static struct snd_pcm_hw_constraint_list playback_constraint_rates;
|
|
static struct snd_pcm_hw_constraint_list playback_constraint_bits;
|
|
static struct snd_pcm_hw_constraint_list playback_constraint_channels;
|
|
|
|
#ifdef DEBUG
|
|
static void dumpregs(struct snd_soc_dai *dai)
|
|
{
|
|
u32 n, cts;
|
|
|
|
cts = (hdmi_readb(HDMI_AUD_CTS3) << 16) |
|
|
(hdmi_readb(HDMI_AUD_CTS2) << 8) |
|
|
hdmi_readb(HDMI_AUD_CTS1);
|
|
|
|
n = (hdmi_readb(HDMI_AUD_N3) << 16) |
|
|
(hdmi_readb(HDMI_AUD_N2) << 8) |
|
|
hdmi_readb(HDMI_AUD_N1);
|
|
|
|
dev_debug(dai->dev, "HDMI_PHY_CONF0 0x%02x\n",
|
|
hdmi_readb(HDMI_PHY_CONF0));
|
|
dev_debug(dai->dev, "HDMI_MC_CLKDIS 0x%02x\n",
|
|
hdmi_readb(HDMI_MC_CLKDIS));
|
|
dev_debug(dai->dev, "HDMI_AUD_N[1-3] 0x%06x (%d)\n",
|
|
n, n);
|
|
dev_debug(dai->dev, "HDMI_AUD_CTS[1-3] 0x%06x (%d)\n",
|
|
cts, cts);
|
|
dev_debug(dai->dev, "HDMI_FC_AUDSCONF 0x%02x\n",
|
|
hdmi_readb(HDMI_FC_AUDSCONF));
|
|
}
|
|
#else
|
|
static void dumpregs(struct snd_soc_dai *dai) {}
|
|
#endif
|
|
|
|
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 */
|
|
};
|
|
|
|
/*
|
|
* EDID SA bits in the CEA Speaker Allocation data block
|
|
*/
|
|
static int edid_speaker_allocation_bits[] = {
|
|
[0] = FL | FR,
|
|
[1] = LFE,
|
|
[2] = FC,
|
|
[3] = RL | RR,
|
|
[4] = RC,
|
|
[5] = FLC | FRC,
|
|
[6] = RLC | RRC,
|
|
[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_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 },},
|
|
{ .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 },},
|
|
/* surround51 */
|
|
{ .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 },},
|
|
/* surround71 */
|
|
{ .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 },},
|
|
};
|
|
|
|
/* Compute derived values in channel_allocations[] */
|
|
static void init_channel_allocations(void)
|
|
{
|
|
struct cea_channel_speaker_allocation *p;
|
|
int i, j;
|
|
|
|
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:
|
|
*
|
|
* speaker_alloc => (edid_speaker_allocation_bits[]) => spk_mask
|
|
* spk_mask => (channel_allocations[]) => CA
|
|
*
|
|
* TODO: it could select the wrong CA from multiple candidates.
|
|
*/
|
|
static int hdmi_channel_allocation(int channels)
|
|
{
|
|
int spk_mask = 0, ca = 0, i, tmpchn, tmpspk;
|
|
|
|
/* CA defaults to 0 for basic stereo audio */
|
|
if (channels <= 2)
|
|
return 0;
|
|
|
|
/*
|
|
* Expand EDID's speaker allocation mask
|
|
*
|
|
* EDID tells the speaker mask in a compact(paired) form,
|
|
* expand EDID's notions to match the ones used by Audio InfoFrame.
|
|
*/
|
|
for (i = 0; i < ARRAY_SIZE(edid_speaker_allocation_bits); i++) {
|
|
if (edid_cfg.speaker_alloc & (1 << i))
|
|
spk_mask |= edid_speaker_allocation_bits[i];
|
|
}
|
|
|
|
/* Search for the first working match in the CA table */
|
|
for (i = 0; i < ARRAY_SIZE(channel_allocations); i++) {
|
|
tmpchn = channel_allocations[i].channels;
|
|
tmpspk = channel_allocations[i].spk_mask;
|
|
|
|
if (channels == tmpchn && (spk_mask & tmpspk) == tmpspk) {
|
|
ca = channel_allocations[i].ca_index;
|
|
break;
|
|
}
|
|
}
|
|
|
|
return ca;
|
|
}
|
|
|
|
static void hdmi_set_audio_infoframe(unsigned int channels)
|
|
{
|
|
u8 audiconf0, audiconf2;
|
|
|
|
/*
|
|
* From CEA-861-D spec:
|
|
* HDMI requires the CT, SS and SF fields to be set to 0 ("Refer
|
|
* to Stream Header") as these items are carried in the audio stream.
|
|
*
|
|
* So we only set the CC and CA fields.
|
|
*/
|
|
audiconf0 = ((channels - 1) << HDMI_FC_AUDICONF0_CC_OFFSET) &
|
|
HDMI_FC_AUDICONF0_CC_MASK;
|
|
|
|
audiconf2 = hdmi_channel_allocation(channels);
|
|
|
|
hdmi_writeb(audiconf0, HDMI_FC_AUDICONF0);
|
|
hdmi_writeb(0, HDMI_FC_AUDICONF1);
|
|
hdmi_writeb(audiconf2, HDMI_FC_AUDICONF2);
|
|
hdmi_writeb(0, HDMI_FC_AUDICONF3);
|
|
}
|
|
|
|
static int cea_audio_rates[HDMI_MAX_RATES] = {
|
|
32000, 44100, 48000, 88200, 96000, 176400, 192000,
|
|
};
|
|
|
|
static void fsl_hdmi_get_playback_rates(void)
|
|
{
|
|
int i, count = 0;
|
|
u8 rates;
|
|
|
|
/* Always assume basic audio support */
|
|
rates = edid_cfg.sample_rates | 0x7;
|
|
|
|
for (i = 0 ; i < HDMI_MAX_RATES ; i++)
|
|
if ((rates & (1 << i)) != 0)
|
|
playback_rates[count++] = cea_audio_rates[i];
|
|
|
|
playback_constraint_rates.list = playback_rates;
|
|
playback_constraint_rates.count = count;
|
|
|
|
for (i = 0 ; i < playback_constraint_rates.count ; i++)
|
|
pr_debug("%s: constraint = %d Hz\n", __func__, playback_rates[i]);
|
|
}
|
|
|
|
static void fsl_hdmi_get_playback_sample_size(void)
|
|
{
|
|
int i = 0;
|
|
|
|
/* Always assume basic audio support */
|
|
playback_sample_size[i++] = 16;
|
|
|
|
if (edid_cfg.sample_sizes & 0x4)
|
|
playback_sample_size[i++] = 24;
|
|
|
|
playback_constraint_bits.list = playback_sample_size;
|
|
playback_constraint_bits.count = i;
|
|
|
|
for (i = 0 ; i < playback_constraint_bits.count ; i++)
|
|
pr_debug("%s: constraint = %d bits\n", __func__, playback_sample_size[i]);
|
|
}
|
|
|
|
static void fsl_hdmi_get_playback_channels(void)
|
|
{
|
|
int channels = 2, i = 0;
|
|
|
|
/* Always assume basic audio support */
|
|
playback_channels[i++] = channels;
|
|
channels += 2;
|
|
|
|
while ((i < HDMI_MAX_CHANNEL_CONSTRAINTS) &&
|
|
(channels <= edid_cfg.max_channels)) {
|
|
playback_channels[i++] = channels;
|
|
channels += 2;
|
|
}
|
|
|
|
playback_constraint_channels.list = playback_channels;
|
|
playback_constraint_channels.count = i;
|
|
|
|
for (i = 0 ; i < playback_constraint_channels.count ; i++)
|
|
pr_debug("%s: constraint = %d channels\n", __func__, playback_channels[i]);
|
|
}
|
|
|
|
static int fsl_hdmi_update_constraints(struct snd_pcm_substream *substream)
|
|
{
|
|
struct snd_pcm_runtime *runtime = substream->runtime;
|
|
int ret;
|
|
|
|
hdmi_get_edid_cfg(&edid_cfg);
|
|
|
|
fsl_hdmi_get_playback_rates();
|
|
ret = snd_pcm_hw_constraint_list(runtime, 0, SNDRV_PCM_HW_PARAM_RATE,
|
|
&playback_constraint_rates);
|
|
if (ret)
|
|
return ret;
|
|
|
|
fsl_hdmi_get_playback_sample_size();
|
|
ret = snd_pcm_hw_constraint_list(runtime, 0, SNDRV_PCM_HW_PARAM_SAMPLE_BITS,
|
|
&playback_constraint_bits);
|
|
if (ret)
|
|
return ret;
|
|
|
|
fsl_hdmi_get_playback_channels();
|
|
ret = snd_pcm_hw_constraint_list(runtime, 0, SNDRV_PCM_HW_PARAM_CHANNELS,
|
|
&playback_constraint_channels);
|
|
if (ret)
|
|
return ret;
|
|
|
|
ret = snd_pcm_hw_constraint_integer(runtime, SNDRV_PCM_HW_PARAM_PERIODS);
|
|
if (ret)
|
|
return ret;
|
|
|
|
return 0;
|
|
}
|
|
|
|
static int fsl_hdmi_soc_startup(struct snd_pcm_substream *substream,
|
|
struct snd_soc_dai *dai)
|
|
{
|
|
struct imx_hdmi *hdmi_data = snd_soc_dai_get_drvdata(dai);
|
|
int ret;
|
|
|
|
clk_prepare_enable(hdmi_data->mipi_core_clk);
|
|
clk_prepare_enable(hdmi_data->isfr_clk);
|
|
clk_prepare_enable(hdmi_data->iahb_clk);
|
|
|
|
dev_dbg(dai->dev, "%s hdmi clks: mipi_core: %d isfr:%d iahb:%d\n", __func__,
|
|
(int)clk_get_rate(hdmi_data->mipi_core_clk),
|
|
(int)clk_get_rate(hdmi_data->isfr_clk),
|
|
(int)clk_get_rate(hdmi_data->iahb_clk));
|
|
|
|
ret = fsl_hdmi_update_constraints(substream);
|
|
if (ret < 0)
|
|
return ret;
|
|
|
|
/* Indicates the subpacket represents a flatline sample */
|
|
hdmi_audio_writeb(FC_AUDSCONF, AUD_PACKET_SAMPFIT, 0x0);
|
|
|
|
return 0;
|
|
}
|
|
|
|
static void fsl_hdmi_soc_shutdown(struct snd_pcm_substream *substream,
|
|
struct snd_soc_dai *dai)
|
|
{
|
|
struct imx_hdmi *hdmi_data = snd_soc_dai_get_drvdata(dai);
|
|
|
|
clk_disable_unprepare(hdmi_data->iahb_clk);
|
|
clk_disable_unprepare(hdmi_data->isfr_clk);
|
|
clk_disable_unprepare(hdmi_data->mipi_core_clk);
|
|
}
|
|
|
|
static int fsl_hdmi_soc_prepare(struct snd_pcm_substream *substream,
|
|
struct snd_soc_dai *dai)
|
|
{
|
|
struct snd_pcm_runtime *runtime = substream->runtime;
|
|
|
|
hdmi_set_audio_infoframe(runtime->channels);
|
|
hdmi_audio_writeb(FC_AUDSCONF, AUD_PACKET_LAYOUT,
|
|
(runtime->channels > 2) ? 0x1 : 0x0);
|
|
hdmi_set_sample_rate(runtime->rate);
|
|
dumpregs(dai);
|
|
|
|
return 0;
|
|
}
|
|
|
|
static struct snd_soc_dai_ops fsl_hdmi_soc_dai_ops = {
|
|
.startup = fsl_hdmi_soc_startup,
|
|
.shutdown = fsl_hdmi_soc_shutdown,
|
|
.prepare = fsl_hdmi_soc_prepare,
|
|
};
|
|
|
|
/* IEC60958 status functions */
|
|
static int fsl_hdmi_iec_info(struct snd_kcontrol *kcontrol,
|
|
struct snd_ctl_elem_info *uinfo)
|
|
{
|
|
uinfo->type = SNDRV_CTL_ELEM_TYPE_IEC958;
|
|
uinfo->count = 1;
|
|
|
|
return 0;
|
|
}
|
|
|
|
|
|
static int fsl_hdmi_iec_get(struct snd_kcontrol *kcontrol,
|
|
struct snd_ctl_elem_value *uvalue)
|
|
{
|
|
int i;
|
|
|
|
for (i = 0 ; i < 4 ; i++)
|
|
uvalue->value.iec958.status[i] = iec_header.status[i];
|
|
|
|
return 0;
|
|
}
|
|
|
|
static int fsl_hdmi_iec_put(struct snd_kcontrol *kcontrol,
|
|
struct snd_ctl_elem_value *uvalue)
|
|
{
|
|
int i;
|
|
|
|
/* Do not allow professional mode */
|
|
if (uvalue->value.iec958.status[0] & IEC958_AES0_PROFESSIONAL)
|
|
return -EPERM;
|
|
|
|
for (i = 0 ; i < 4 ; i++) {
|
|
iec_header.status[i] = uvalue->value.iec958.status[i];
|
|
pr_debug("%s status[%d]=0x%02x\n", __func__, i, iec_header.status[i]);
|
|
}
|
|
|
|
return 0;
|
|
}
|
|
|
|
static int fsl_hdmi_channels_info(struct snd_kcontrol *kcontrol,
|
|
struct snd_ctl_elem_info *uinfo)
|
|
{
|
|
hdmi_get_edid_cfg(&edid_cfg);
|
|
fsl_hdmi_get_playback_channels();
|
|
|
|
uinfo->type = SNDRV_CTL_ELEM_TYPE_INTEGER;
|
|
uinfo->count = playback_constraint_channels.count;
|
|
|
|
return 0;
|
|
}
|
|
|
|
|
|
static int fsl_hdmi_channels_get(struct snd_kcontrol *kcontrol,
|
|
struct snd_ctl_elem_value *uvalue)
|
|
{
|
|
int i;
|
|
hdmi_get_edid_cfg(&edid_cfg);
|
|
fsl_hdmi_get_playback_channels();
|
|
|
|
for (i = 0 ; i < playback_constraint_channels.count ; i++)
|
|
uvalue->value.integer.value[i] = playback_channels[i];
|
|
|
|
return 0;
|
|
}
|
|
|
|
static int fsl_hdmi_rates_info(struct snd_kcontrol *kcontrol,
|
|
struct snd_ctl_elem_info *uinfo)
|
|
{
|
|
hdmi_get_edid_cfg(&edid_cfg);
|
|
fsl_hdmi_get_playback_rates();
|
|
|
|
uinfo->type = SNDRV_CTL_ELEM_TYPE_INTEGER;
|
|
uinfo->count = playback_constraint_rates.count;
|
|
|
|
return 0;
|
|
}
|
|
|
|
static int fsl_hdmi_rates_get(struct snd_kcontrol *kcontrol,
|
|
struct snd_ctl_elem_value *uvalue)
|
|
{
|
|
int i;
|
|
hdmi_get_edid_cfg(&edid_cfg);
|
|
fsl_hdmi_get_playback_rates();
|
|
|
|
for (i = 0 ; i < playback_constraint_rates.count ; i++)
|
|
uvalue->value.integer.value[i] = playback_rates[i];
|
|
|
|
return 0;
|
|
}
|
|
|
|
static int fsl_hdmi_formats_info(struct snd_kcontrol *kcontrol,
|
|
struct snd_ctl_elem_info *uinfo)
|
|
{
|
|
hdmi_get_edid_cfg(&edid_cfg);
|
|
fsl_hdmi_get_playback_sample_size();
|
|
|
|
uinfo->type = SNDRV_CTL_ELEM_TYPE_INTEGER;
|
|
uinfo->count = playback_constraint_bits.count;
|
|
|
|
return 0;
|
|
}
|
|
|
|
static int fsl_hdmi_formats_get(struct snd_kcontrol *kcontrol,
|
|
struct snd_ctl_elem_value *uvalue)
|
|
{
|
|
int i;
|
|
hdmi_get_edid_cfg(&edid_cfg);
|
|
fsl_hdmi_get_playback_sample_size();
|
|
|
|
for (i = 0 ; i < playback_constraint_bits.count ; i++)
|
|
uvalue->value.integer.value[i] = playback_sample_size[i];
|
|
|
|
return 0;
|
|
}
|
|
|
|
static struct snd_kcontrol_new fsl_hdmi_ctrls[] = {
|
|
/* Status cchanel controller */
|
|
{
|
|
.iface = SNDRV_CTL_ELEM_IFACE_MIXER,
|
|
.name = SNDRV_CTL_NAME_IEC958("", PLAYBACK, DEFAULT),
|
|
.access = SNDRV_CTL_ELEM_ACCESS_READ |
|
|
SNDRV_CTL_ELEM_ACCESS_WRITE |
|
|
SNDRV_CTL_ELEM_ACCESS_VOLATILE,
|
|
.info = fsl_hdmi_iec_info,
|
|
.get = fsl_hdmi_iec_get,
|
|
.put = fsl_hdmi_iec_put,
|
|
},
|
|
{
|
|
.iface = SNDRV_CTL_ELEM_IFACE_MIXER,
|
|
.name = "HDMI Support Channels",
|
|
.access = SNDRV_CTL_ELEM_ACCESS_READ |
|
|
SNDRV_CTL_ELEM_ACCESS_VOLATILE,
|
|
.info = fsl_hdmi_channels_info,
|
|
.get = fsl_hdmi_channels_get,
|
|
},
|
|
{
|
|
.iface = SNDRV_CTL_ELEM_IFACE_MIXER,
|
|
.name = "HDMI Support Rates",
|
|
.access = SNDRV_CTL_ELEM_ACCESS_READ |
|
|
SNDRV_CTL_ELEM_ACCESS_VOLATILE,
|
|
.info = fsl_hdmi_rates_info,
|
|
.get = fsl_hdmi_rates_get,
|
|
},
|
|
{
|
|
.iface = SNDRV_CTL_ELEM_IFACE_MIXER,
|
|
.name = "HDMI Support Formats",
|
|
.access = SNDRV_CTL_ELEM_ACCESS_READ |
|
|
SNDRV_CTL_ELEM_ACCESS_VOLATILE,
|
|
.info = fsl_hdmi_formats_info,
|
|
.get = fsl_hdmi_formats_get,
|
|
},
|
|
};
|
|
|
|
static int fsl_hdmi_soc_dai_probe(struct snd_soc_dai *dai)
|
|
{
|
|
int ret;
|
|
|
|
init_channel_allocations();
|
|
|
|
ret = snd_soc_add_dai_controls(dai, fsl_hdmi_ctrls,
|
|
ARRAY_SIZE(fsl_hdmi_ctrls));
|
|
if (ret)
|
|
dev_warn(dai->dev, "failed to add dai controls\n");
|
|
|
|
return 0;
|
|
}
|
|
|
|
static struct snd_soc_dai_driver fsl_hdmi_dai = {
|
|
.probe = &fsl_hdmi_soc_dai_probe,
|
|
.playback = {
|
|
.channels_min = 2,
|
|
.channels_max = 8,
|
|
.rates = MXC_HDMI_RATES_PLAYBACK,
|
|
.formats = MXC_HDMI_FORMATS_PLAYBACK,
|
|
},
|
|
.ops = &fsl_hdmi_soc_dai_ops,
|
|
};
|
|
|
|
static const struct snd_soc_component_driver fsl_hdmi_component = {
|
|
.name = "fsl-hdmi",
|
|
};
|
|
|
|
static int fsl_hdmi_dai_probe(struct platform_device *pdev)
|
|
{
|
|
struct device_node *np = pdev->dev.of_node;
|
|
struct imx_hdmi *hdmi_data;
|
|
int ret = 0;
|
|
|
|
if (!np)
|
|
return -ENODEV;
|
|
|
|
if (!hdmi_get_registered()) {
|
|
dev_err(&pdev->dev, "failed to probe. Load HDMI-video first.\n");
|
|
return -ENOMEM;
|
|
}
|
|
|
|
hdmi_data = devm_kzalloc(&pdev->dev, sizeof(*hdmi_data), GFP_KERNEL);
|
|
if (!hdmi_data) {
|
|
dev_err(&pdev->dev, "failed to alloc hdmi_data\n");
|
|
return -ENOMEM;
|
|
}
|
|
|
|
hdmi_data->pdev = pdev;
|
|
|
|
memcpy(&hdmi_data->cpu_dai_drv, &fsl_hdmi_dai, sizeof(fsl_hdmi_dai));
|
|
hdmi_data->cpu_dai_drv.name = np->name;
|
|
|
|
hdmi_data->mipi_core_clk = devm_clk_get(&pdev->dev, "mipi_core");
|
|
if (IS_ERR(hdmi_data->mipi_core_clk)) {
|
|
ret = PTR_ERR(hdmi_data->mipi_core_clk);
|
|
dev_err(&pdev->dev, "failed to get mipi core clk: %d\n", ret);
|
|
return -EINVAL;
|
|
}
|
|
|
|
hdmi_data->isfr_clk = devm_clk_get(&pdev->dev, "hdmi_isfr");
|
|
if (IS_ERR(hdmi_data->isfr_clk)) {
|
|
ret = PTR_ERR(hdmi_data->isfr_clk);
|
|
dev_err(&pdev->dev, "failed to get HDMI isfr clk: %d\n", ret);
|
|
return -EINVAL;
|
|
}
|
|
|
|
hdmi_data->iahb_clk = devm_clk_get(&pdev->dev, "hdmi_iahb");
|
|
if (IS_ERR(hdmi_data->iahb_clk)) {
|
|
ret = PTR_ERR(hdmi_data->iahb_clk);
|
|
dev_err(&pdev->dev, "failed to get HDMI ahb clk: %d\n", ret);
|
|
return -EINVAL;
|
|
}
|
|
|
|
dev_set_drvdata(&pdev->dev, hdmi_data);
|
|
ret = snd_soc_register_component(&pdev->dev, &fsl_hdmi_component,
|
|
&hdmi_data->cpu_dai_drv, 1);
|
|
if (ret) {
|
|
dev_err(&pdev->dev, "register DAI failed\n");
|
|
return ret;
|
|
}
|
|
|
|
hdmi_data->codec_dev = platform_device_register_simple(
|
|
"hdmi-audio-codec", -1, NULL, 0);
|
|
if (IS_ERR(hdmi_data->codec_dev)) {
|
|
dev_err(&pdev->dev, "failed to register HDMI audio codec\n");
|
|
ret = PTR_ERR(hdmi_data->codec_dev);
|
|
goto fail;
|
|
}
|
|
|
|
hdmi_data->dma_dev = platform_device_alloc("imx-hdmi-audio", -1);
|
|
if (IS_ERR(hdmi_data->dma_dev)) {
|
|
ret = PTR_ERR(hdmi_data->dma_dev);
|
|
goto fail_dma;
|
|
}
|
|
|
|
platform_set_drvdata(hdmi_data->dma_dev, hdmi_data);
|
|
|
|
ret = platform_device_add(hdmi_data->dma_dev);
|
|
if (ret) {
|
|
platform_device_put(hdmi_data->dma_dev);
|
|
goto fail_dma;
|
|
}
|
|
|
|
return 0;
|
|
|
|
fail_dma:
|
|
platform_device_unregister(hdmi_data->codec_dev);
|
|
fail:
|
|
snd_soc_unregister_component(&pdev->dev);
|
|
|
|
return ret;
|
|
}
|
|
|
|
static int fsl_hdmi_dai_remove(struct platform_device *pdev)
|
|
{
|
|
struct imx_hdmi *hdmi_data = platform_get_drvdata(pdev);
|
|
|
|
platform_device_unregister(hdmi_data->dma_dev);
|
|
platform_device_unregister(hdmi_data->codec_dev);
|
|
snd_soc_unregister_component(&pdev->dev);
|
|
|
|
return 0;
|
|
}
|
|
|
|
static const struct of_device_id fsl_hdmi_dai_dt_ids[] = {
|
|
{ .compatible = "fsl,imx6dl-hdmi-audio", },
|
|
{ .compatible = "fsl,imx6q-hdmi-audio", },
|
|
{ /* sentinel */ }
|
|
};
|
|
MODULE_DEVICE_TABLE(of, fsl_hdmi_dai_dt_ids);
|
|
|
|
static struct platform_driver fsl_hdmi_driver = {
|
|
.probe = fsl_hdmi_dai_probe,
|
|
.remove = fsl_hdmi_dai_remove,
|
|
.driver = {
|
|
.name = "fsl-hdmi-dai",
|
|
.owner = THIS_MODULE,
|
|
.of_match_table = fsl_hdmi_dai_dt_ids,
|
|
},
|
|
};
|
|
module_platform_driver(fsl_hdmi_driver);
|
|
|
|
MODULE_AUTHOR("Freescale Semiconductor, Inc.");
|
|
MODULE_DESCRIPTION("IMX HDMI TX DAI");
|
|
MODULE_LICENSE("GPL");
|
|
MODULE_ALIAS("platform:fsl-hdmi-dai");
|