This patch adds controllers for digital volume of PCM output. Volume effects simply linear, not dB scale as follows: Gained PCM = Original * 0x4000 / Volume
The value range of volume is from 0x0001 to 0xffff. 0x0000 works as mute. Initial value is 0x4000 (+0dB).
Signed-off-by: Katsuhiro Suzuki suzuki.katsuhiro@socionext.com --- sound/soc/uniphier/aio-core.c | 58 ++++++++++++++ sound/soc/uniphier/aio-cpu.c | 140 ++++++++++++++++++++++++++++++++++ sound/soc/uniphier/aio-reg.h | 33 ++++++-- sound/soc/uniphier/aio.h | 7 ++ 4 files changed, 233 insertions(+), 5 deletions(-)
diff --git a/sound/soc/uniphier/aio-core.c b/sound/soc/uniphier/aio-core.c index e37b80921abb..638cb3fc5f7b 100644 --- a/sound/soc/uniphier/aio-core.c +++ b/sound/soc/uniphier/aio-core.c @@ -659,6 +659,64 @@ void aio_port_set_enable(struct uniphier_aio_sub *sub, int enable) } }
+/** + * aio_port_get_volume - get volume of AIO port block + * @sub: the AIO substream pointer + * + * Return: current volume, range is 0x0000 - 0xffff + */ +int aio_port_get_volume(struct uniphier_aio_sub *sub) +{ + struct regmap *r = sub->aio->chip->regmap; + u32 v; + + regmap_read(r, OPORTMXTYVOLGAINSTATUS(sub->swm->oport.map, 0), &v); + + return FIELD_GET(OPORTMXTYVOLGAINSTATUS_CUR_MASK, v); +} + +/** + * aio_port_set_volume - set volume of AIO port block + * @sub: the AIO substream pointer + * @vol: target volume, range is 0x0000 - 0xffff. + * + * Change digital volume and perfome fade-out/fade-in effect for specified + * output slot of port. Gained PCM value can calculate as the following: + * Gained = Original * vol / 0x4000 + */ +void aio_port_set_volume(struct uniphier_aio_sub *sub, int vol) +{ + struct regmap *r = sub->aio->chip->regmap; + int oport_map = sub->swm->oport.map; + int cur, diff, slope = 0, fs; + + if (sub->swm->dir == PORT_DIR_INPUT) + return; + + cur = aio_port_get_volume(sub); + diff = abs(vol - cur); + fs = params_rate(&sub->params); + if (fs) + slope = diff / AUD_VOL_FADE_TIME * 1000 / fs; + slope = max(1, slope); + + regmap_update_bits(r, OPORTMXTYVOLPARA1(oport_map, 0), + OPORTMXTYVOLPARA1_SLOPEU_MASK, slope << 16); + regmap_update_bits(r, OPORTMXTYVOLPARA2(oport_map, 0), + OPORTMXTYVOLPARA2_TARGET_MASK, vol); + + if (cur < vol) + regmap_update_bits(r, OPORTMXTYVOLPARA2(oport_map, 0), + OPORTMXTYVOLPARA2_FADE_MASK, + OPORTMXTYVOLPARA2_FADE_FADEIN); + else + regmap_update_bits(r, OPORTMXTYVOLPARA2(oport_map, 0), + OPORTMXTYVOLPARA2_FADE_MASK, + OPORTMXTYVOLPARA2_FADE_FADEOUT); + + regmap_write(r, AOUTFADECTR0, BIT(oport_map)); +} + /** * aio_if_set_param - set parameters of AIO DMA I/F block * @sub: the AIO substream pointer diff --git a/sound/soc/uniphier/aio-cpu.c b/sound/soc/uniphier/aio-cpu.c index 00b6441bf195..80daec17be25 100644 --- a/sound/soc/uniphier/aio-cpu.c +++ b/sound/soc/uniphier/aio-cpu.c @@ -32,6 +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) { @@ -287,6 +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; @@ -373,6 +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); @@ -449,8 +481,116 @@ int uniphier_aio_dai_resume(struct snd_soc_dai *dai) } 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) diff --git a/sound/soc/uniphier/aio-reg.h b/sound/soc/uniphier/aio-reg.h index 511ea3c01847..45fdc6ae358a 100644 --- a/sound/soc/uniphier/aio-reg.h +++ b/sound/soc/uniphier/aio-reg.h @@ -169,6 +169,7 @@ #define PBINMXPAUSECTR1(n) (0x20208 + 0x40 * (n))
/* AOUT */ +#define AOUTFADECTR0 0x40020 #define AOUTENCTR0 0x40040 #define AOUTENCTR1 0x40044 #define AOUTENCTR2 0x40048 @@ -179,6 +180,9 @@ #define AOUTSRCRSTCTR1 0x400c4 #define AOUTSRCRSTCTR2 0x400c8
+/* AOUT PCMOUT has 5 slots, slot0-3: D0-3, slot4: DMIX */ +#define OPORT_SLOT_MAX 5 + /* AOUT(PCMOUTN) */ #define OPORTMXCTR1(n) (0x42000 + 0x400 * (n)) #define OPORTMXCTR1_I2SLRSEL_MASK (0x11 << 10) @@ -359,11 +363,30 @@ #define OPORTMXMASK_XCKMSK_ON (0x0 << 0) #define OPORTMXMASK_XCKMSK_OFF (0x7 << 0) #define OPORTMXDEBUG(n) (0x420fc + 0x400 * (n)) -#define OPORTMXT0RSTCTR(n) (0x4211c + 0x400 * (n)) -#define OPORTMXT1RSTCTR(n) (0x4213c + 0x400 * (n)) -#define OPORTMXT2RSTCTR(n) (0x4215c + 0x400 * (n)) -#define OPORTMXT3RSTCTR(n) (0x4217c + 0x400 * (n)) -#define OPORTMXT4RSTCTR(n) (0x4219c + 0x400 * (n)) +#define OPORTMXTYVOLPARA1(n, m) (0x42100 + 0x400 * (n) + 0x20 * (m)) +#define OPORTMXTYVOLPARA1_SLOPEU_MASK GENMASK(31, 16) +#define OPORTMXTYVOLPARA2(n, m) (0x42104 + 0x400 * (n) + 0x20 * (m)) +#define OPORTMXTYVOLPARA2_FADE_MASK GENMASK(17, 16) +#define OPORTMXTYVOLPARA2_FADE_NOOP (0x0 << 16) +#define OPORTMXTYVOLPARA2_FADE_FADEOUT (0x1 << 16) +#define OPORTMXTYVOLPARA2_FADE_FADEIN (0x2 << 16) +#define OPORTMXTYVOLPARA2_TARGET_MASK GENMASK(15, 0) +#define OPORTMXTYVOLGAINSTATUS(n, m) (0x42108 + 0x400 * (n) + 0x20 * (m)) +#define OPORTMXTYVOLGAINSTATUS_CUR_MASK GENMASK(15, 0) +#define OPORTMXTYSLOTCTR(n, m) (0x42114 + 0x400 * (n) + 0x20 * (m)) +#define OPORTMXTYSLOTCTR_SLOTSEL_MASK GENMASK(11, 8) +#define OPORTMXTYSLOTCTR_SLOTSEL_SLOT0 (0x8 << 8) +#define OPORTMXTYSLOTCTR_SLOTSEL_SLOT1 (0x9 << 8) +#define OPORTMXTYSLOTCTR_SLOTSEL_SLOT2 (0xa << 8) +#define OPORTMXTYSLOTCTR_SLOTSEL_SLOT3 (0xb << 8) +#define OPORTMXTYSLOTCTR_SLOTSEL_SLOT4 (0xc << 8) +#define OPORTMXT0SLOTCTR_MUTEOFF_MASK BIT(1) +#define OPORTMXT0SLOTCTR_MUTEOFF_MUTE (0x0 << 1) +#define OPORTMXT0SLOTCTR_MUTEOFF_UNMUTE (0x1 << 1) +#define OPORTMXTYRSTCTR(n, m) (0x4211c + 0x400 * (n) + 0x20 * (m)) +#define OPORTMXT0RSTCTR_RST_MASK BIT(1) +#define OPORTMXT0RSTCTR_RST_OFF (0x0 << 1) +#define OPORTMXT0RSTCTR_RST_ON (0x1 << 1)
#define SBF_(frame, shift) (((frame) * 2 - 1) << shift)
diff --git a/sound/soc/uniphier/aio.h b/sound/soc/uniphier/aio.h index 52670126084f..aa89c2f6fa24 100644 --- a/sound/soc/uniphier/aio.h +++ b/sound/soc/uniphier/aio.h @@ -130,6 +130,10 @@ enum IEC61937_PC { #define AUD_PLLDIV_1_1 2 #define AUD_PLLDIV_2_3 3
+#define AUD_VOL_INIT 0x4000 /* +0dB */ +#define AUD_VOL_MAX 0xffff /* +6dB */ +#define AUD_VOL_FADE_TIME 20 /* 20ms */ + #define AUD_RING_SIZE (128 * 1024)
#define AUD_MIN_FRAGMENT 4 @@ -231,6 +235,7 @@ struct uniphier_aio_sub { /* For PCM audio */ struct snd_pcm_substream *substream; struct snd_pcm_hw_params params; + int vol;
/* For compress audio */ struct snd_compr_stream *cstream; @@ -323,6 +328,8 @@ int aio_port_set_clk(struct uniphier_aio_sub *sub); int aio_port_set_param(struct uniphier_aio_sub *sub, int pass_through, const struct snd_pcm_hw_params *params); void aio_port_set_enable(struct uniphier_aio_sub *sub, int enable); +int aio_port_get_volume(struct uniphier_aio_sub *sub); +void aio_port_set_volume(struct uniphier_aio_sub *sub, int vol); int aio_if_set_param(struct uniphier_aio_sub *sub, int pass_through); int aio_oport_set_stream_type(struct uniphier_aio_sub *sub, enum IEC61937_PC pc);