diff options
| author | Ben Zhang <benzh@chromium.org> | 2019-11-06 02:13:26 +0100 |
|---|---|---|
| committer | Mark Brown <broonie@kernel.org> | 2019-11-11 14:01:59 +0100 |
| commit | 461c623270e4fa9cbab44e3ac2f0ddab2842c034 (patch) | |
| tree | 8bcbe433fa9f08e34b63984886a5b4296f149033 /sound/soc/codecs/rt5677.h | |
| parent | ASoC: fsl_audmix: Add spin lock to protect tdms (diff) | |
| download | linux-461c623270e4fa9cbab44e3ac2f0ddab2842c034.tar.xz linux-461c623270e4fa9cbab44e3ac2f0ddab2842c034.zip | |
ASoC: rt5677: Load firmware via SPI using delayed work
The firmware rt5677_elf_vad is an ELF binary obtained from
request_firmware(). Sections of the ELF are loaded to
the DSP via SPI. A model (e.g. en_us.mmap) can optionally be
loaded to the DSP at RT5677_MODEL_ADDR to overwrite the
baked-in model in rt5677_elf_vad.
Then we switch to DSP mode, load firmware, and let DSP run.
When a hotword is detected, an interrupt is fired and
rt5677_irq() is called. When 'DSP VAD Switch' is turned off,
the codec is set back to normal mode.
The kcontrol 'DSP VAD Switch' is automatically enabled/disabled
when the hotwording PCM stream is opened/closed.
Signed-off-by: Ben Zhang <benzh@chromium.org>
Signed-off-by: Curtis Malainey <cujomalainey@chromium.org>
Link: https://lore.kernel.org/r/20191106011335.223061-2-cujomalainey@chromium.org
Signed-off-by: Mark Brown <broonie@kernel.org>
Diffstat (limited to 'sound/soc/codecs/rt5677.h')
| -rw-r--r-- | sound/soc/codecs/rt5677.h | 6 |
1 files changed, 5 insertions, 1 deletions
diff --git a/sound/soc/codecs/rt5677.h b/sound/soc/codecs/rt5677.h index 213f4b8ca269..d18b41da1176 100644 --- a/sound/soc/codecs/rt5677.h +++ b/sound/soc/codecs/rt5677.h @@ -1730,6 +1730,7 @@ enum { RT5677_AIF4, RT5677_AIF5, RT5677_AIFS, + RT5677_DSPBUFF, }; enum { @@ -1845,14 +1846,17 @@ struct rt5677_priv { #ifdef CONFIG_GPIOLIB struct gpio_chip gpio_chip; #endif - bool dsp_vad_en; + bool dsp_vad_en; /* DSP VAD enable/disable request */ bool is_dsp_mode; bool is_vref_slow; + struct delayed_work dsp_work; /* Interrupt handling */ struct irq_domain *domain; struct mutex irq_lock; unsigned int irq_en; + + int (*set_dsp_vad)(struct snd_soc_component *component, bool on); }; int rt5677_sel_asrc_clk_src(struct snd_soc_component *component, |