[alsa-devel] [PATCH v2] ALSA: hda - Add missing HD-Audio codec information
Takashi Iwai
tiwai at suse.de
Sun May 13 09:00:02 CEST 2018
On Tue, 08 May 2018 08:25:26 +0200,
Shrikant Dharwadkar wrote:
>
> This adds missing HD-Audio codec information such as GPIO info,
> power controls, volume capabilities from HDA spec. These additional
> info can be useful in debugging issues. Following are the info that
> are being added:
>
> Function group nodes
> -Add power state controls
> -Add subordinate node count parameters
> -Add function group type information
> -Add function group capabilities
> -Add unsolicited response controls
> -Add input converter SDI select information
> -Add GPIO enable control
> -Add GPIO direction information
> -Add GPIO wake enable information
> -Add GPIO unsolicited control information
> -Add GPIO sticky mask data
> -Add GPIO data sets associated with GPIO signals
>
> Widget nodes
> -Add pin widget controls
> -Add power state controls
> -Add converter stream and channel controls
> -Add processing state information
> -Add processing capabilities
> -Add volume knob capabilities
> -Add volume knob control information
> -Add digital converter control information
> -Add pin sense control information
> -Add EAPD/BTL enable controls
> -Add unsolicited response controls
Many of them are specific to either the widget capability or the
widget type, and accessing to an invalid verb may screw up the codec
chip easily. Hence if you add these sysfs attrs, each of them needs
some careful check before actually issuing the verb.
thanks,
Takashi
>
> Signed-off-by: Shrikant Dharwadkar <shrikant.dharwadkar at intel.com>
> ---
> sound/hda/hdac_sysfs.c | 167 +++++++++++++++++++++++++++++++++++++++++++++++++
> 1 file changed, 167 insertions(+)
>
> diff --git a/sound/hda/hdac_sysfs.c b/sound/hda/hdac_sysfs.c
> index fb2aa34..b1acff2 100644
> --- a/sound/hda/hdac_sysfs.c
> +++ b/sound/hda/hdac_sysfs.c
> @@ -37,6 +37,9 @@ static ssize_t type##_show(struct device *dev, \
> } \
> static DEVICE_ATTR_RO(type)
>
> +#define CODEC_PRINT(verb) sprintf(buf, "0x%08x\n", \
> + snd_hdac_read_parm(codec, nid, verb))
> +
> CODEC_ATTR(type);
> CODEC_ATTR(vendor_id);
> CODEC_ATTR(subsystem_id);
> @@ -173,6 +176,12 @@ static ssize_t pin_caps_show(struct hdac_device *codec, hda_nid_t nid,
> snd_hdac_read_parm(codec, nid, AC_PAR_PIN_CAP));
> }
>
> +static ssize_t pin_widget_ctl_show(struct hdac_device *codec, hda_nid_t nid,
> + struct widget_attribute *attr, char *buf)
> +{
> + return CODEC_PRINT(AC_VERB_GET_PIN_WIDGET_CONTROL);
> +}
> +
> static ssize_t pin_cfg_show(struct hdac_device *codec, hda_nid_t nid,
> struct widget_attribute *attr, char *buf)
> {
> @@ -243,6 +252,14 @@ static ssize_t power_caps_show(struct hdac_device *codec, hda_nid_t nid,
> snd_hdac_read_parm(codec, nid, AC_PAR_POWER_STATE));
> }
>
> +static ssize_t power_states_show(struct hdac_device *codec, hda_nid_t nid,
> + struct widget_attribute *attr, char *buf)
> +{
> + if (nid != codec->afg && !(get_wcaps(codec, nid) & AC_WCAP_POWER))
> + return 0;
> + return CODEC_PRINT(AC_VERB_GET_POWER_STATE);
> +}
> +
> static ssize_t gpio_caps_show(struct hdac_device *codec, hda_nid_t nid,
> struct widget_attribute *attr, char *buf)
> {
> @@ -266,27 +283,166 @@ static ssize_t connections_show(struct hdac_device *codec, hda_nid_t nid,
> return ret;
> }
>
> +static ssize_t converter_stream_channel_show(struct hdac_device *codec,
> + hda_nid_t nid, struct widget_attribute *attr, char *buf)
> +{
> + return CODEC_PRINT(AC_VERB_GET_CONV);
> +}
> +
> +static ssize_t processing_states_show(struct hdac_device *codec, hda_nid_t nid,
> + struct widget_attribute *attr, char *buf)
> +{
> + return CODEC_PRINT(AC_VERB_GET_PROC_STATE);
> +}
> +
> +static ssize_t subordinate_node_count_show(struct hdac_device *codec,
> + hda_nid_t nid, struct widget_attribute *attr, char *buf)
> +{
> + return CODEC_PRINT(AC_PAR_NODE_COUNT);
> +}
> +
> +static ssize_t function_group_type_show(struct hdac_device *codec,
> + hda_nid_t nid, struct widget_attribute *attr, char *buf)
> +{
> + return CODEC_PRINT(AC_PAR_FUNCTION_TYPE);
> +}
> +
> +static ssize_t processing_caps_show(struct hdac_device *codec, hda_nid_t nid,
> + struct widget_attribute *attr, char *buf)
> +{
> + return CODEC_PRINT(AC_PAR_PROC_CAP);
> +}
> +
> +static ssize_t volume_knob_caps_show(struct hdac_device *codec, hda_nid_t nid,
> + struct widget_attribute *attr, char *buf)
> +{
> + return CODEC_PRINT(AC_PAR_VOL_KNB_CAP);
> +}
> +
> +static ssize_t volume_knob_ctl_show(struct hdac_device *codec, hda_nid_t nid,
> + struct widget_attribute *attr, char *buf)
> +{
> + return CODEC_PRINT(AC_VERB_GET_VOLUME_KNOB_CONTROL);
> +}
> +
> +static ssize_t digital_converter_ctl_show(struct hdac_device *codec,
> + hda_nid_t nid, struct widget_attribute *attr, char *buf)
> +{
> + return CODEC_PRINT(AC_VERB_GET_DIGI_CONVERT_1);
> +}
> +
> +static ssize_t pin_sense_show(struct hdac_device *codec, hda_nid_t nid,
> + struct widget_attribute *attr, char *buf)
> +{
> + return CODEC_PRINT(AC_VERB_GET_PIN_SENSE);
> +}
> +
> +static ssize_t EAPD_BTL_show(struct hdac_device *codec, hda_nid_t nid,
> + struct widget_attribute *attr, char *buf)
> +{
> + return CODEC_PRINT(AC_VERB_GET_EAPD_BTLENABLE);
> +}
> +
> +static ssize_t unsol_caps_show(struct hdac_device *codec, hda_nid_t nid,
> + struct widget_attribute *attr, char *buf)
> +{
> + return CODEC_PRINT(AC_VERB_GET_UNSOLICITED_RESPONSE);
> +}
> +
> +static ssize_t sdi_select_show(struct hdac_device *codec, hda_nid_t nid,
> + struct widget_attribute *attr, char *buf)
> +{
> + return CODEC_PRINT(AC_VERB_GET_SDI_SELECT);
> +}
> +
> +static ssize_t gpio_enable_show(struct hdac_device *codec, hda_nid_t nid,
> + struct widget_attribute *attr, char *buf)
> +{
> + return CODEC_PRINT(AC_VERB_GET_GPIO_MASK);
> +}
> +
> +static ssize_t gpio_direction_show(struct hdac_device *codec, hda_nid_t nid,
> + struct widget_attribute *attr, char *buf)
> +{
> + return CODEC_PRINT(AC_VERB_GET_GPIO_DIRECTION);
> +}
> +
> +static ssize_t gpio_wake_show(struct hdac_device *codec, hda_nid_t nid,
> + struct widget_attribute *attr, char *buf)
> +{
> + return CODEC_PRINT(AC_VERB_GET_GPIO_WAKE_MASK);
> +}
> +
> +static ssize_t gpio_unsol_show(struct hdac_device *codec, hda_nid_t nid,
> + struct widget_attribute *attr, char *buf)
> +{
> + return CODEC_PRINT(AC_VERB_GET_GPIO_UNSOLICITED_RSP_MASK);
> +}
> +
> +static ssize_t gpio_sticky_show(struct hdac_device *codec, hda_nid_t nid,
> + struct widget_attribute *attr, char *buf)
> +{
> + return CODEC_PRINT(AC_VERB_GET_GPIO_STICKY_MASK);
> +}
> +
> +static ssize_t gpio_data_show(struct hdac_device *codec, hda_nid_t nid,
> + struct widget_attribute *attr, char *buf)
> +{
> + return CODEC_PRINT(AC_VERB_GET_GPIO_DATA);
> +}
> +
> static WIDGET_ATTR_RO(caps);
> static WIDGET_ATTR_RO(pin_caps);
> static WIDGET_ATTR_RO(pin_cfg);
> +static WIDGET_ATTR_RO(pin_widget_ctl);
> static WIDGET_ATTR_RO(pcm_caps);
> static WIDGET_ATTR_RO(pcm_formats);
> static WIDGET_ATTR_RO(amp_in_caps);
> static WIDGET_ATTR_RO(amp_out_caps);
> static WIDGET_ATTR_RO(power_caps);
> +static WIDGET_ATTR_RO(power_states);
> static WIDGET_ATTR_RO(gpio_caps);
> static WIDGET_ATTR_RO(connections);
> +static WIDGET_ATTR_RO(converter_stream_channel);
> +static WIDGET_ATTR_RO(processing_states);
> +static WIDGET_ATTR_RO(subordinate_node_count);
> +static WIDGET_ATTR_RO(function_group_type);
> +static WIDGET_ATTR_RO(processing_caps);
> +static WIDGET_ATTR_RO(volume_knob_caps);
> +static WIDGET_ATTR_RO(volume_knob_ctl);
> +static WIDGET_ATTR_RO(digital_converter_ctl);
> +static WIDGET_ATTR_RO(pin_sense);
> +static WIDGET_ATTR_RO(EAPD_BTL);
> +static WIDGET_ATTR_RO(unsol_caps);
> +static WIDGET_ATTR_RO(sdi_select);
> +static WIDGET_ATTR_RO(gpio_enable);
> +static WIDGET_ATTR_RO(gpio_direction);
> +static WIDGET_ATTR_RO(gpio_wake);
> +static WIDGET_ATTR_RO(gpio_unsol);
> +static WIDGET_ATTR_RO(gpio_sticky);
> +static WIDGET_ATTR_RO(gpio_data);
>
> static struct attribute *widget_node_attrs[] = {
> &wid_attr_caps.attr,
> &wid_attr_pin_caps.attr,
> + &wid_attr_pin_widget_ctl.attr,
> &wid_attr_pin_cfg.attr,
> &wid_attr_pcm_caps.attr,
> &wid_attr_pcm_formats.attr,
> &wid_attr_amp_in_caps.attr,
> &wid_attr_amp_out_caps.attr,
> &wid_attr_power_caps.attr,
> + &wid_attr_power_states.attr,
> &wid_attr_connections.attr,
> + &wid_attr_converter_stream_channel.attr,
> + &wid_attr_processing_states.attr,
> + &wid_attr_processing_caps.attr,
> + &wid_attr_volume_knob_caps.attr,
> + &wid_attr_volume_knob_ctl.attr,
> + &wid_attr_digital_converter_ctl.attr,
> + &wid_attr_pin_sense.attr,
> + &wid_attr_EAPD_BTL.attr,
> + &wid_attr_unsol_caps.attr,
> NULL,
> };
>
> @@ -296,7 +452,18 @@ static struct attribute *widget_afg_attrs[] = {
> &wid_attr_amp_in_caps.attr,
> &wid_attr_amp_out_caps.attr,
> &wid_attr_power_caps.attr,
> + &wid_attr_power_states.attr,
> &wid_attr_gpio_caps.attr,
> + &wid_attr_subordinate_node_count.attr,
> + &wid_attr_function_group_type.attr,
> + &wid_attr_unsol_caps.attr,
> + &wid_attr_sdi_select.attr,
> + &wid_attr_gpio_enable.attr,
> + &wid_attr_gpio_direction.attr,
> + &wid_attr_gpio_wake.attr,
> + &wid_attr_gpio_unsol.attr,
> + &wid_attr_gpio_sticky.attr,
> + &wid_attr_gpio_data.attr,
> NULL,
> };
>
> --
> 2.7.4
>
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