diff options
Diffstat (limited to 'sound/soc/uniphier/aio-cpu.c')
| -rw-r--r-- | sound/soc/uniphier/aio-cpu.c | 153 |
1 files changed, 140 insertions, 13 deletions
diff --git a/sound/soc/uniphier/aio-cpu.c b/sound/soc/uniphier/aio-cpu.c index 1e5eb8e6f8c76..80daec17be258 100644 --- a/sound/soc/uniphier/aio-cpu.c +++ b/sound/soc/uniphier/aio-cpu.c @@ -3,19 +3,6 @@ // Socionext UniPhier AIO ALSA CPU DAI driver. // // Copyright (c) 2016-2018 Socionext Inc. -// -// 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; version 2 -// of the License. -// -// 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, see <http://www.gnu.org/licenses/>. #include <linux/clk.h> #include <linux/errno.h> @@ -45,6 +32,35 @@ static bool is_valid_pll(struct uniphier_aio_chip *chip, int pll_id) return chip->plls[pll_id].enable; } +/** + * find_volume - find volume supported HW port by HW port number + * @chip: the AIO chip pointer + * @oport_hw: HW port number, one of AUD_HW_XXXX + * + * Find AIO device from device list by HW port number. Volume feature is + * available only in Output and PCM ports, this limitation comes from HW + * specifications. + * + * Return: The pointer of AIO substream if successful, otherwise NULL on error. + */ +static struct uniphier_aio_sub *find_volume(struct uniphier_aio_chip *chip, + int oport_hw) +{ + int i; + + for (i = 0; i < chip->num_aios; i++) { + struct uniphier_aio_sub *sub = &chip->aios[i].sub[0]; + + if (!sub->swm) + continue; + + if (sub->swm->oport.hw == oport_hw) + return sub; + } + + return NULL; +} + static bool match_spec(const struct uniphier_aio_spec *spec, const char *name, int dir) { @@ -300,6 +316,7 @@ static int uniphier_aio_hw_params(struct snd_pcm_substream *substream, sub->setting = 1; aio_port_reset(sub); + aio_port_set_volume(sub, sub->vol); aio_src_reset(sub); return 0; @@ -386,6 +403,8 @@ int uniphier_aio_dai_probe(struct snd_soc_dai *dai) sub->swm = &spec->swm; sub->spec = spec; + + sub->vol = AUD_VOL_INIT; } aio_iecout_set_enable(aio->chip, true); @@ -462,8 +481,116 @@ err_out_clock: } EXPORT_SYMBOL_GPL(uniphier_aio_dai_resume); +static int uniphier_aio_vol_info(struct snd_kcontrol *kcontrol, + struct snd_ctl_elem_info *uinfo) +{ + uinfo->type = SNDRV_CTL_ELEM_TYPE_INTEGER; + uinfo->count = 1; + uinfo->value.integer.min = 0; + uinfo->value.integer.max = AUD_VOL_MAX; + + return 0; +} + +static int uniphier_aio_vol_get(struct snd_kcontrol *kcontrol, + struct snd_ctl_elem_value *ucontrol) +{ + struct snd_soc_component *comp = snd_soc_kcontrol_component(kcontrol); + struct uniphier_aio_chip *chip = snd_soc_component_get_drvdata(comp); + struct uniphier_aio_sub *sub; + int oport_hw = kcontrol->private_value; + + sub = find_volume(chip, oport_hw); + if (!sub) + return 0; + + ucontrol->value.integer.value[0] = sub->vol; + + return 0; +} + +static int uniphier_aio_vol_put(struct snd_kcontrol *kcontrol, + struct snd_ctl_elem_value *ucontrol) +{ + struct snd_soc_component *comp = snd_soc_kcontrol_component(kcontrol); + struct uniphier_aio_chip *chip = snd_soc_component_get_drvdata(comp); + struct uniphier_aio_sub *sub; + int oport_hw = kcontrol->private_value; + + sub = find_volume(chip, oport_hw); + if (!sub) + return 0; + + if (sub->vol == ucontrol->value.integer.value[0]) + return 0; + sub->vol = ucontrol->value.integer.value[0]; + + aio_port_set_volume(sub, sub->vol); + + return 0; +} + +static const struct snd_kcontrol_new uniphier_aio_controls[] = { + { + .iface = SNDRV_CTL_ELEM_IFACE_MIXER, + .access = SNDRV_CTL_ELEM_ACCESS_READWRITE, + .name = "HPCMOUT1 Volume", + .info = uniphier_aio_vol_info, + .get = uniphier_aio_vol_get, + .put = uniphier_aio_vol_put, + .private_value = AUD_HW_HPCMOUT1, + }, + { + .iface = SNDRV_CTL_ELEM_IFACE_MIXER, + .access = SNDRV_CTL_ELEM_ACCESS_READWRITE, + .name = "PCMOUT1 Volume", + .info = uniphier_aio_vol_info, + .get = uniphier_aio_vol_get, + .put = uniphier_aio_vol_put, + .private_value = AUD_HW_PCMOUT1, + }, + { + .iface = SNDRV_CTL_ELEM_IFACE_MIXER, + .access = SNDRV_CTL_ELEM_ACCESS_READWRITE, + .name = "PCMOUT2 Volume", + .info = uniphier_aio_vol_info, + .get = uniphier_aio_vol_get, + .put = uniphier_aio_vol_put, + .private_value = AUD_HW_PCMOUT2, + }, + { + .iface = SNDRV_CTL_ELEM_IFACE_MIXER, + .access = SNDRV_CTL_ELEM_ACCESS_READWRITE, + .name = "PCMOUT3 Volume", + .info = uniphier_aio_vol_info, + .get = uniphier_aio_vol_get, + .put = uniphier_aio_vol_put, + .private_value = AUD_HW_PCMOUT3, + }, + { + .iface = SNDRV_CTL_ELEM_IFACE_MIXER, + .access = SNDRV_CTL_ELEM_ACCESS_READWRITE, + .name = "HIECOUT1 Volume", + .info = uniphier_aio_vol_info, + .get = uniphier_aio_vol_get, + .put = uniphier_aio_vol_put, + .private_value = AUD_HW_HIECOUT1, + }, + { + .iface = SNDRV_CTL_ELEM_IFACE_MIXER, + .access = SNDRV_CTL_ELEM_ACCESS_READWRITE, + .name = "IECOUT1 Volume", + .info = uniphier_aio_vol_info, + .get = uniphier_aio_vol_get, + .put = uniphier_aio_vol_put, + .private_value = AUD_HW_IECOUT1, + }, +}; + static const struct snd_soc_component_driver uniphier_aio_component = { .name = "uniphier-aio", + .controls = uniphier_aio_controls, + .num_controls = ARRAY_SIZE(uniphier_aio_controls), }; int uniphier_aio_probe(struct platform_device *pdev) |