[PATCH 1/3] drm/rockchip: inno_hdmi: add audio support
Yakir Yang
ykk at rock-chips.com
Thu Aug 4 02:11:53 UTC 2016
Mark,
Got it, would rebase soonest :-)
Thanks,
- Yakir
On 08/04/2016 10:01 AM, Mark yao wrote:
> Hi Yakir
>
> After apply your patch, I got following warning messge:
>
> drivers/gpu/drm/rockchip/inno_hdmi.c:818:2: warning: initialization
> from incompatible pointer type [enabled by default]
> drivers/gpu/drm/rockchip/inno_hdmi.c:818:2: warning: (near
> initialization for 'audio_codec_ops.hw_params') [enabled by default]
> drivers/gpu/drm/rockchip/inno_hdmi.c:819:2: warning: initialization
> from incompatible pointer type [enabled by default]
> drivers/gpu/drm/rockchip/inno_hdmi.c:819:2: warning: (near
> initialization for 'audio_codec_ops.audio_shutdown') [enabled by default]
> drivers/gpu/drm/rockchip/inno_hdmi.c:820:2: warning: initialization
> from incompatible pointer type [enabled by default]
> drivers/gpu/drm/rockchip/inno_hdmi.c:820:2: warning: (near
> initialization for 'audio_codec_ops.digital_mute') [enabled by default]
> drivers/gpu/drm/rockchip/inno_hdmi.c:821:2: warning: initialization
> from incompatible pointer type [enabled by default]
> drivers/gpu/drm/rockchip/inno_hdmi.c:821:2: warning: (near
> initialization for 'audio_codec_ops.get_eld') [enabled by default]
>
> since the commit "efc9194 ASoC: hdmi-codec: callback function will be
> called with private data",
> the hdmi_codec_ops had some changes.
> Can you rebase your patch to the newest kernel?
>
> Thanks.
> On 2016年06月15日 21:28, Yakir Yang wrote:
>> Using the common hdmi-codec driver to support hdmi audio function.
>>
>> Signed-off-by: Yakir Yang <ykk at rock-chips.com>
>> ---
>> drivers/gpu/drm/rockchip/inno_hdmi.c | 237
>> ++++++++++++++++++++++++++++++++++-
>> drivers/gpu/drm/rockchip/inno_hdmi.h | 2 +
>> 2 files changed, 237 insertions(+), 2 deletions(-)
>>
>> diff --git a/drivers/gpu/drm/rockchip/inno_hdmi.c
>> b/drivers/gpu/drm/rockchip/inno_hdmi.c
>> index f8b4feb..c31dc07 100644
>> --- a/drivers/gpu/drm/rockchip/inno_hdmi.c
>> +++ b/drivers/gpu/drm/rockchip/inno_hdmi.c
>> @@ -29,6 +29,8 @@
>> #include <drm/drm_crtc_helper.h>
>> #include <drm/drm_edid.h>
>> +#include <sound/hdmi-codec.h>
>> +
>> #include "rockchip_drm_drv.h"
>> #include "rockchip_drm_vop.h"
>> @@ -36,6 +38,12 @@
>> #define to_inno_hdmi(x) container_of(x, struct inno_hdmi, x)
>> +struct audio_info {
>> + int sample_rate;
>> + int channels;
>> + int sample_width;
>> +};
>> +
>> struct hdmi_data_info {
>> int vic;
>> bool sink_is_hdmi;
>> @@ -71,6 +79,9 @@ struct inno_hdmi {
>> unsigned int tmds_rate;
>> + struct platform_device *audio_pdev;
>> + bool audio_enable;
>> +
>> struct hdmi_data_info hdmi_data;
>> struct drm_display_mode previous_mode;
>> };
>> @@ -306,6 +317,57 @@ static int inno_hdmi_config_video_avi(struct
>> inno_hdmi *hdmi,
>> return inno_hdmi_upload_frame(hdmi, rc, &frame, INFOFRAME_AVI,
>> 0, 0, 0);
>> }
>> +static int inno_hdmi_config_audio_aai(struct inno_hdmi *hdmi,
>> + struct audio_info *audio)
>> +{
>> + struct hdmi_audio_infoframe *faudio;
>> + union hdmi_infoframe frame;
>> + int rc;
>> +
>> + rc = hdmi_audio_infoframe_init(&frame.audio);
>> + faudio = (struct hdmi_audio_infoframe *)&frame;
>> +
>> + faudio->channels = audio->channels;
>> +
>> + switch (audio->sample_width) {
>> + case 16:
>> + faudio->sample_size = HDMI_AUDIO_SAMPLE_SIZE_16;
>> + break;
>> + case 20:
>> + faudio->sample_size = HDMI_AUDIO_SAMPLE_SIZE_20;
>> + break;
>> + case 24:
>> + faudio->sample_size = HDMI_AUDIO_SAMPLE_SIZE_24;
>> + break;
>> + }
>> +
>> + switch (audio->sample_rate) {
>> + case 32000:
>> + faudio->sample_frequency = HDMI_AUDIO_SAMPLE_FREQUENCY_32000;
>> + break;
>> + case 44100:
>> + faudio->sample_frequency = HDMI_AUDIO_SAMPLE_FREQUENCY_44100;
>> + break;
>> + case 48000:
>> + faudio->sample_frequency = HDMI_AUDIO_SAMPLE_FREQUENCY_48000;
>> + break;
>> + case 88200:
>> + faudio->sample_frequency = HDMI_AUDIO_SAMPLE_FREQUENCY_88200;
>> + break;
>> + case 96000:
>> + faudio->sample_frequency = HDMI_AUDIO_SAMPLE_FREQUENCY_96000;
>> + break;
>> + case 176400:
>> + faudio->sample_frequency = HDMI_AUDIO_SAMPLE_FREQUENCY_176400;
>> + break;
>> + case 192000:
>> + faudio->sample_frequency = HDMI_AUDIO_SAMPLE_FREQUENCY_192000;
>> + break;
>> + }
>> +
>> + return inno_hdmi_upload_frame(hdmi, rc, &frame, INFOFRAME_AAI,
>> 0, 0, 0);
>> +}
>> +
>> static int inno_hdmi_config_video_csc(struct inno_hdmi *hdmi)
>> {
>> struct hdmi_data_info *data = &hdmi->hdmi_data;
>> @@ -478,8 +540,9 @@ static int inno_hdmi_setup(struct inno_hdmi *hdmi,
>> inno_hdmi_i2c_init(hdmi);
>> /* Unmute video and audio output */
>> - hdmi_modb(hdmi, HDMI_AV_MUTE, m_AUDIO_MUTE | m_VIDEO_BLACK,
>> - v_AUDIO_MUTE(0) | v_VIDEO_MUTE(0));
>> + hdmi_modb(hdmi, HDMI_AV_MUTE, m_VIDEO_BLACK, v_VIDEO_MUTE(0));
>> + if (hdmi->audio_enable)
>> + hdmi_modb(hdmi, HDMI_AV_MUTE, m_AUDIO_MUTE, v_AUDIO_MUTE(0));
>> return 0;
>> }
>> @@ -616,6 +679,174 @@ static struct drm_connector_helper_funcs
>> inno_hdmi_connector_helper_funcs = {
>> .best_encoder = inno_hdmi_connector_best_encoder,
>> };
>> +int inno_hdmi_audio_config_set(struct inno_hdmi *hdmi, struct
>> audio_info *audio)
>> +{
>> + int rate, N, channel;
>> +
>> + if (audio->channels < 3)
>> + channel = I2S_CHANNEL_1_2;
>> + else if (audio->channels < 5)
>> + channel = I2S_CHANNEL_3_4;
>> + else if (audio->channels < 7)
>> + channel = I2S_CHANNEL_5_6;
>> + else
>> + channel = I2S_CHANNEL_7_8;
>> +
>> + switch (audio->sample_rate) {
>> + case 32000:
>> + rate = AUDIO_32K;
>> + N = N_32K;
>> + break;
>> + case 44100:
>> + rate = AUDIO_441K;
>> + N = N_441K;
>> + break;
>> + case 48000:
>> + rate = AUDIO_48K;
>> + N = N_48K;
>> + break;
>> + case 88200:
>> + rate = AUDIO_882K;
>> + N = N_882K;
>> + break;
>> + case 96000:
>> + rate = AUDIO_96K;
>> + N = N_96K;
>> + break;
>> + case 176400:
>> + rate = AUDIO_1764K;
>> + N = N_1764K;
>> + break;
>> + case 192000:
>> + rate = AUDIO_192K;
>> + N = N_192K;
>> + break;
>> + default:
>> + dev_err(hdmi->dev, "[%s] not support such sample rate %d\n",
>> + __func__, audio->sample_rate);
>> + return -ENOENT;
>> + }
>> +
>> + /* set_audio source I2S */
>> + hdmi_writeb(hdmi, HDMI_AUDIO_CTRL1, 0x01);
>> + hdmi_writeb(hdmi, AUDIO_SAMPLE_RATE, rate);
>> + hdmi_writeb(hdmi, AUDIO_I2S_MODE, v_I2S_MODE(I2S_STANDARD) |
>> + v_I2S_CHANNEL(channel));
>> +
>> + hdmi_writeb(hdmi, AUDIO_I2S_MAP, 0x00);
>> + hdmi_writeb(hdmi, AUDIO_I2S_SWAPS_SPDIF, 0);
>> +
>> + /* Set N value */
>> + hdmi_writeb(hdmi, AUDIO_N_H, (N >> 16) & 0x0F);
>> + hdmi_writeb(hdmi, AUDIO_N_M, (N >> 8) & 0xFF);
>> + hdmi_writeb(hdmi, AUDIO_N_L, N & 0xFF);
>> +
>> + /*Set hdmi nlpcm mode to support hdmi bitstream*/
>> + hdmi_writeb(hdmi, HDMI_AUDIO_CHANNEL_STATUS,
>> v_AUDIO_STATUS_NLPCM(0));
>> +
>> + return inno_hdmi_config_audio_aai(hdmi, audio);
>> +}
>> +
>> +static int inno_hdmi_audio_hw_params(struct device *dev,
>> + struct hdmi_codec_daifmt *daifmt,
>> + struct hdmi_codec_params *params)
>> +{
>> + struct inno_hdmi *hdmi = dev_get_drvdata(dev);
>> + struct audio_info audio = {
>> + .sample_width = params->sample_width,
>> + .sample_rate = params->sample_rate,
>> + .channels = params->channels,
>> + };
>> +
>> + if (!hdmi->hdmi_data.sink_has_audio) {
>> + dev_err(hdmi->dev, "Sink do not support audio!\n");
>> + return -ENODEV;
>> + }
>> +
>> + if (!hdmi->encoder.crtc)
>> + return -ENODEV;
>> +
>> + switch (daifmt->fmt) {
>> + case HDMI_I2S:
>> + break;
>> + default:
>> + dev_err(dev, "%s: Invalid format %d\n", __func__, daifmt->fmt);
>> + return -EINVAL;
>> + }
>> +
>> + return inno_hdmi_audio_config_set(hdmi, &audio);
>> +}
>> +
>> +static void inno_hdmi_audio_shutdown(struct device *dev)
>> +{
>> + /* do nothing */
>> +}
>> +
>> +static int inno_hdmi_audio_digital_mute(struct device *dev, bool mute)
>> +{
>> + struct inno_hdmi *hdmi = dev_get_drvdata(dev);
>> +
>> + if (!hdmi->hdmi_data.sink_has_audio) {
>> + dev_err(hdmi->dev, "Sink do not support audio!\n");
>> + return -ENODEV;
>> + }
>> +
>> + hdmi->audio_enable = !mute;
>> +
>> + if (mute)
>> + hdmi_modb(hdmi, HDMI_AV_MUTE, m_AUDIO_MUTE | m_AUDIO_PD,
>> + v_AUDIO_MUTE(1) | v_AUDIO_PD(1));
>> + else
>> + hdmi_modb(hdmi, HDMI_AV_MUTE, m_AUDIO_MUTE | m_AUDIO_PD,
>> + v_AUDIO_MUTE(0) | v_AUDIO_PD(0));
>> +
>> + return 0;
>> +}
>> +
>> +static int inno_hdmi_audio_get_eld(struct device *dev, uint8_t *buf,
>> size_t len)
>> +{
>> + struct inno_hdmi *hdmi = dev_get_drvdata(dev);
>> + struct drm_mode_config *config = &hdmi->encoder.dev->mode_config;
>> + struct drm_connector *connector;
>> + int ret = -ENODEV;
>> +
>> + mutex_lock(&config->mutex);
>> + list_for_each_entry(connector, &config->connector_list, head) {
>> + if (&hdmi->encoder == connector->encoder) {
>> + memcpy(buf, connector->eld,
>> + min(sizeof(connector->eld), len));
>> + ret = 0;
>> + }
>> + }
>> + mutex_unlock(&config->mutex);
>> +
>> + return ret;
>> +}
>> +
>> +static const struct hdmi_codec_ops audio_codec_ops = {
>> + .hw_params = inno_hdmi_audio_hw_params,
>> + .audio_shutdown = inno_hdmi_audio_shutdown,
>> + .digital_mute = inno_hdmi_audio_digital_mute,
>> + .get_eld = inno_hdmi_audio_get_eld,
>> +};
>> +
>> +static int inno_hdmi_audio_codec_init(struct inno_hdmi *hdmi,
>> + struct device *dev)
>> +{
>> + struct hdmi_codec_pdata codec_data = {
>> + .i2s = 1,
>> + .ops = &audio_codec_ops,
>> + .max_i2s_channels = 8,
>> + };
>> +
>> + hdmi->audio_enable = false;
>> + hdmi->audio_pdev = platform_device_register_data(
>> + dev, HDMI_CODEC_DRV_NAME, PLATFORM_DEVID_NONE,
>> + &codec_data, sizeof(codec_data));
>> +
>> + return PTR_ERR_OR_ZERO(hdmi->audio_pdev);
>> +}
>> +
>> static int inno_hdmi_register(struct drm_device *drm, struct
>> inno_hdmi *hdmi)
>> {
>> struct drm_encoder *encoder = &hdmi->encoder;
>> @@ -645,6 +876,8 @@ static int inno_hdmi_register(struct drm_device
>> *drm, struct inno_hdmi *hdmi)
>> drm_mode_connector_attach_encoder(&hdmi->connector, encoder);
>> + inno_hdmi_audio_codec_init(hdmi, dev);
>> +
>> return 0;
>> }
>> diff --git a/drivers/gpu/drm/rockchip/inno_hdmi.h
>> b/drivers/gpu/drm/rockchip/inno_hdmi.h
>> index aa7c415..8b23037 100644
>> --- a/drivers/gpu/drm/rockchip/inno_hdmi.h
>> +++ b/drivers/gpu/drm/rockchip/inno_hdmi.h
>> @@ -104,11 +104,13 @@ enum {
>> #define HDMI_AV_MUTE 0x05
>> #define m_AVMUTE_CLEAR (1 << 7)
>> #define m_AVMUTE_ENABLE (1 << 6)
>> +#define m_AUDIO_PD (1 << 2)
>> #define m_AUDIO_MUTE (1 << 1)
>> #define m_VIDEO_BLACK (1 << 0)
>> #define v_AVMUTE_CLEAR(n) (n << 7)
>> #define v_AVMUTE_ENABLE(n) (n << 6)
>> #define v_AUDIO_MUTE(n) (n << 1)
>> +#define v_AUDIO_PD(n) (n << 2)
>> #define v_VIDEO_MUTE(n) (n << 0)
>> #define HDMI_VIDEO_TIMING_CTL 0x08
>
>
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