diff options
author | Mark Brown <broonie@opensource.wolfsonmicro.com> | 2011-03-17 20:23:43 +0000 |
---|---|---|
committer | Mark Brown <broonie@opensource.wolfsonmicro.com> | 2011-03-22 18:41:28 +0000 |
commit | 312158718fe2056703b2744801165a9574560495 (patch) | |
tree | ea5574d489d4381647bf33fd6d2122514bb61ea1 /sound/soc/codecs/wm8958-dsp2.c | |
parent | 09e10d7fe509408d15818db6a0299f563668a7ba (diff) | |
download | blackbird-op-linux-312158718fe2056703b2744801165a9574560495.tar.gz blackbird-op-linux-312158718fe2056703b2744801165a9574560495.zip |
ASoC: Add WM8958 enhanced EQ support
DSP2 in the WM8958 can be used to support an upgraded EQ for use in
demanding applications.
Signed-off-by: Mark Brown <broonie@opensource.wolfsonmicro.com>
Acked-by: Liam Girdwood <lrg@ti.com>
Diffstat (limited to 'sound/soc/codecs/wm8958-dsp2.c')
-rw-r--r-- | sound/soc/codecs/wm8958-dsp2.c | 192 |
1 files changed, 189 insertions, 3 deletions
diff --git a/sound/soc/codecs/wm8958-dsp2.c b/sound/soc/codecs/wm8958-dsp2.c index d0e257315d97..74983ee2b87f 100644 --- a/sound/soc/codecs/wm8958-dsp2.c +++ b/sound/soc/codecs/wm8958-dsp2.c @@ -294,6 +294,36 @@ static void wm8958_dsp_start_vss(struct snd_soc_codec *codec, int path) path << WM8958_MBC_SEL_SHIFT | WM8958_MBC_ENA); } +static void wm8958_dsp_start_enh_eq(struct snd_soc_codec *codec, int path) +{ + struct wm8994_priv *wm8994 = snd_soc_codec_get_drvdata(codec); + struct wm8994_pdata *pdata = wm8994->pdata; + int i; + + wm8958_dsp2_fw(codec, "ENH_EQ", wm8994->enh_eq, false); + + snd_soc_update_bits(codec, WM8958_DSP2_PROGRAM, + WM8958_DSP2_ENA, WM8958_DSP2_ENA); + + /* If we've got user supplied settings use them */ + if (pdata && pdata->num_enh_eq_cfgs) { + struct wm8958_enh_eq_cfg *cfg + = &pdata->enh_eq_cfgs[wm8994->enh_eq_cfg]; + + for (i = 0; i < ARRAY_SIZE(cfg->regs); i++) + snd_soc_write(codec, i + 0x2200, + cfg->regs[i]); + } + + /* Run the DSP */ + snd_soc_write(codec, WM8958_DSP2_EXECCONTROL, + WM8958_DSP2_RUNR); + + /* Switch the DSP into the data path */ + snd_soc_update_bits(codec, WM8958_DSP2_CONFIG, + WM8958_MBC_SEL_MASK | WM8958_MBC_ENA, + path << WM8958_MBC_SEL_SHIFT | WM8958_MBC_ENA); +} static void wm8958_dsp_apply(struct snd_soc_codec *codec, int path, int start) { @@ -321,7 +351,8 @@ static void wm8958_dsp_apply(struct snd_soc_codec *codec, int path, int start) /* Do we have both an active AIF and an active algorithm? */ ena = wm8994->mbc_ena[path] || wm8994->vss_ena[path] || - wm8994->hpf1_ena[path] || wm8994->hpf2_ena[path]; + wm8994->hpf1_ena[path] || wm8994->hpf2_ena[path] || + wm8994->enh_eq_ena[path]; if (!pwr_reg) ena = 0; @@ -344,7 +375,9 @@ static void wm8958_dsp_apply(struct snd_soc_codec *codec, int path, int start) aif << WM8958_DSP2CLK_SRC_SHIFT | WM8958_DSP2CLK_ENA); - if (wm8994->vss_ena[path] || wm8994->hpf1_ena[path] || + if (wm8994->enh_eq_ena[path]) + wm8958_dsp_start_enh_eq(codec, path); + else if (wm8994->vss_ena[path] || wm8994->hpf1_ena[path] || wm8994->hpf2_ena[path]) wm8958_dsp_start_vss(codec, path); else if (wm8994->mbc_ena[path]) @@ -483,6 +516,9 @@ static int wm8958_mbc_put(struct snd_kcontrol *kcontrol, return -EBUSY; } + if (wm8994->enh_eq_ena[mbc]) + return -EBUSY; + wm8994->mbc_ena[mbc] = ucontrol->value.integer.value[0]; wm8958_dsp_apply(codec, mbc, wm8994->mbc_ena[mbc]); @@ -603,6 +639,9 @@ static int wm8958_vss_put(struct snd_kcontrol *kcontrol, return -EBUSY; } + if (wm8994->enh_eq_ena[vss]) + return -EBUSY; + wm8994->vss_ena[vss] = ucontrol->value.integer.value[0]; wm8958_dsp_apply(codec, vss, wm8994->vss_ena[vss]); @@ -661,7 +700,7 @@ static int wm8958_hpf_put(struct snd_kcontrol *kcontrol, return -EBUSY; } - if (wm8994->eq[hpf % 3]) + if (wm8994->enh_eq_ena[hpf % 3]) return -EBUSY; if (hpf < 3) @@ -681,6 +720,97 @@ static int wm8958_hpf_put(struct snd_kcontrol *kcontrol, .get = wm8958_hpf_get, .put = wm8958_hpf_put, \ .private_value = xval } +static int wm8958_put_enh_eq_enum(struct snd_kcontrol *kcontrol, + struct snd_ctl_elem_value *ucontrol) +{ + struct snd_soc_codec *codec = snd_kcontrol_chip(kcontrol); + struct wm8994_priv *wm8994 = snd_soc_codec_get_drvdata(codec); + struct wm8994_pdata *pdata = wm8994->pdata; + int value = ucontrol->value.integer.value[0]; + int reg; + + /* Don't allow on the fly reconfiguration */ + reg = snd_soc_read(codec, WM8994_CLOCKING_1); + if (reg < 0 || reg & WM8958_DSP2CLK_ENA) + return -EBUSY; + + if (value >= pdata->num_enh_eq_cfgs) + return -EINVAL; + + wm8994->enh_eq_cfg = value; + + return 0; +} + +static int wm8958_get_enh_eq_enum(struct snd_kcontrol *kcontrol, + struct snd_ctl_elem_value *ucontrol) +{ + struct snd_soc_codec *codec = snd_kcontrol_chip(kcontrol); + struct wm8994_priv *wm8994 = snd_soc_codec_get_drvdata(codec); + + ucontrol->value.enumerated.item[0] = wm8994->enh_eq_cfg; + + return 0; +} + +static int wm8958_enh_eq_info(struct snd_kcontrol *kcontrol, + struct snd_ctl_elem_info *uinfo) +{ + uinfo->type = SNDRV_CTL_ELEM_TYPE_BOOLEAN; + uinfo->count = 1; + uinfo->value.integer.min = 0; + uinfo->value.integer.max = 1; + return 0; +} + +static int wm8958_enh_eq_get(struct snd_kcontrol *kcontrol, + struct snd_ctl_elem_value *ucontrol) +{ + int eq = kcontrol->private_value; + struct snd_soc_codec *codec = snd_kcontrol_chip(kcontrol); + struct wm8994_priv *wm8994 = snd_soc_codec_get_drvdata(codec); + + ucontrol->value.integer.value[0] = wm8994->enh_eq_ena[eq]; + + return 0; +} + +static int wm8958_enh_eq_put(struct snd_kcontrol *kcontrol, + struct snd_ctl_elem_value *ucontrol) +{ + int eq = kcontrol->private_value; + struct snd_soc_codec *codec = snd_kcontrol_chip(kcontrol); + struct wm8994_priv *wm8994 = snd_soc_codec_get_drvdata(codec); + + if (ucontrol->value.integer.value[0] > 1) + return -EINVAL; + + if (!wm8994->enh_eq) + return -ENODEV; + + if (wm8958_dsp2_busy(wm8994, eq)) { + dev_dbg(codec->dev, "DSP2 active on %d already\n", eq); + return -EBUSY; + } + + if (wm8994->mbc_ena[eq] || wm8994->vss_ena[eq] || + wm8994->hpf1_ena[eq] || wm8994->hpf2_ena[eq]) + return -EBUSY; + + wm8994->enh_eq_ena[eq] = ucontrol->value.integer.value[0]; + + wm8958_dsp_apply(codec, eq, ucontrol->value.integer.value[0]); + + return 0; +} + +#define WM8958_ENH_EQ_SWITCH(xname, xval) {\ + .iface = SNDRV_CTL_ELEM_IFACE_MIXER, .name = (xname), \ + .access = SNDRV_CTL_ELEM_ACCESS_READWRITE,\ + .info = wm8958_enh_eq_info, \ + .get = wm8958_enh_eq_get, .put = wm8958_enh_eq_put, \ + .private_value = xval } + static const struct snd_kcontrol_new wm8958_mbc_snd_controls[] = { WM8958_MBC_SWITCH("AIF1DAC1 MBC Switch", 0), WM8958_MBC_SWITCH("AIF1DAC2 MBC Switch", 1), @@ -699,6 +829,24 @@ WM8958_HPF_SWITCH("AIF1DAC2 HPF2 Switch", 4), WM8958_HPF_SWITCH("AIF2DAC HPF2 Switch", 5), }; +static const struct snd_kcontrol_new wm8958_enh_eq_snd_controls[] = { +WM8958_ENH_EQ_SWITCH("AIF1DAC1 Enhanced EQ Switch", 0), +WM8958_ENH_EQ_SWITCH("AIF1DAC2 Enhanced EQ Switch", 1), +WM8958_ENH_EQ_SWITCH("AIF2DAC Enhanced EQ Switch", 2), +}; + +static void wm8958_enh_eq_loaded(const struct firmware *fw, void *context) +{ + struct snd_soc_codec *codec = context; + struct wm8994_priv *wm8994 = snd_soc_codec_get_drvdata(codec); + + if (fw && (wm8958_dsp2_fw(codec, "ENH_EQ", fw, true) == 0)) { + mutex_lock(&codec->mutex); + wm8994->enh_eq = fw; + mutex_unlock(&codec->mutex); + } +} + static void wm8958_mbc_vss_loaded(const struct firmware *fw, void *context) { struct snd_soc_codec *codec = context; @@ -710,6 +858,12 @@ static void wm8958_mbc_vss_loaded(const struct firmware *fw, void *context) mutex_unlock(&codec->mutex); } + /* We can't have more than one request outstanding at once so + * we daisy chain. + */ + request_firmware_nowait(THIS_MODULE, FW_ACTION_HOTPLUG, + "wm8958_enh_eq.wfw", codec->dev, GFP_KERNEL, + codec, wm8958_enh_eq_loaded); } static void wm8958_mbc_loaded(const struct firmware *fw, void *context) @@ -744,6 +898,8 @@ void wm8958_dsp2_init(struct snd_soc_codec *codec) ARRAY_SIZE(wm8958_mbc_snd_controls)); snd_soc_add_controls(codec, wm8958_vss_snd_controls, ARRAY_SIZE(wm8958_vss_snd_controls)); + snd_soc_add_controls(codec, wm8958_enh_eq_snd_controls, + ARRAY_SIZE(wm8958_enh_eq_snd_controls)); /* We don't *require* firmware and don't want to delay boot */ @@ -839,4 +995,34 @@ void wm8958_dsp2_init(struct snd_soc_codec *codec) "Failed to add VSS HPFmode controls: %d\n", ret); } + + if (pdata->num_enh_eq_cfgs) { + struct snd_kcontrol_new control[] = { + SOC_ENUM_EXT("Enhanced EQ Mode", wm8994->enh_eq_enum, + wm8958_get_enh_eq_enum, + wm8958_put_enh_eq_enum), + }; + + /* We need an array of texts for the enum API */ + wm8994->enh_eq_texts = kmalloc(sizeof(char *) + * pdata->num_enh_eq_cfgs, GFP_KERNEL); + if (!wm8994->enh_eq_texts) { + dev_err(wm8994->codec->dev, + "Failed to allocate %d enhanced EQ config texts\n", + pdata->num_enh_eq_cfgs); + return; + } + + for (i = 0; i < pdata->num_enh_eq_cfgs; i++) + wm8994->enh_eq_texts[i] = pdata->enh_eq_cfgs[i].name; + + wm8994->enh_eq_enum.max = pdata->num_enh_eq_cfgs; + wm8994->enh_eq_enum.texts = wm8994->enh_eq_texts; + + ret = snd_soc_add_controls(wm8994->codec, control, 1); + if (ret != 0) + dev_err(wm8994->codec->dev, + "Failed to add enhanced EQ controls: %d\n", + ret); + } } |