diff options
Diffstat (limited to 'sound/soc/sh/rcar/mix.c')
| -rw-r--r-- | sound/soc/sh/rcar/mix.c | 341 |
1 files changed, 341 insertions, 0 deletions
diff --git a/sound/soc/sh/rcar/mix.c b/sound/soc/sh/rcar/mix.c new file mode 100644 index 000000000..8e3b57eaa --- /dev/null +++ b/sound/soc/sh/rcar/mix.c @@ -0,0 +1,341 @@ +// SPDX-License-Identifier: GPL-2.0 +// +// mix.c +// +// Copyright (c) 2015 Kuninori Morimoto <kuninori.morimoto.gx@renesas.com> + +/* + * CTUn MIXn + * +------+ +------+ + * [SRC3 / SRC6] -> |CTU n0| -> [MIX n0| -> + * [SRC4 / SRC9] -> |CTU n1| -> [MIX n1| -> + * [SRC0 / SRC1] -> |CTU n2| -> [MIX n2| -> + * [SRC2 / SRC5] -> |CTU n3| -> [MIX n3| -> + * +------+ +------+ + * + * ex) + * DAI0 : playback = <&src0 &ctu02 &mix0 &dvc0 &ssi0>; + * DAI1 : playback = <&src2 &ctu03 &mix0 &dvc0 &ssi0>; + * + * MIX Volume + * amixer set "MIX",0 100% // DAI0 Volume + * amixer set "MIX",1 100% // DAI1 Volume + * + * Volume Ramp + * amixer set "MIX Ramp Up Rate" "0.125 dB/1 step" + * amixer set "MIX Ramp Down Rate" "4 dB/1 step" + * amixer set "MIX Ramp" on + * aplay xxx.wav & + * amixer set "MIX",0 80% // DAI0 Volume Down + * amixer set "MIX",1 100% // DAI1 Volume Up + */ + +#include "rsnd.h" + +#define MIX_NAME_SIZE 16 +#define MIX_NAME "mix" + +struct rsnd_mix { + struct rsnd_mod mod; + struct rsnd_kctrl_cfg_s volumeA; /* MDBAR */ + struct rsnd_kctrl_cfg_s volumeB; /* MDBBR */ + struct rsnd_kctrl_cfg_s volumeC; /* MDBCR */ + struct rsnd_kctrl_cfg_s volumeD; /* MDBDR */ + struct rsnd_kctrl_cfg_s ren; /* Ramp Enable */ + struct rsnd_kctrl_cfg_s rup; /* Ramp Rate Up */ + struct rsnd_kctrl_cfg_s rdw; /* Ramp Rate Down */ + u32 flags; +}; + +#define ONCE_KCTRL_INITIALIZED (1 << 0) +#define HAS_VOLA (1 << 1) +#define HAS_VOLB (1 << 2) +#define HAS_VOLC (1 << 3) +#define HAS_VOLD (1 << 4) + +#define VOL_MAX 0x3ff + +#define rsnd_mod_to_mix(_mod) \ + container_of((_mod), struct rsnd_mix, mod) + +#define rsnd_mix_get(priv, id) ((struct rsnd_mix *)(priv->mix) + id) +#define rsnd_mix_nr(priv) ((priv)->mix_nr) +#define for_each_rsnd_mix(pos, priv, i) \ + for ((i) = 0; \ + ((i) < rsnd_mix_nr(priv)) && \ + ((pos) = (struct rsnd_mix *)(priv)->mix + i); \ + i++) + +static void rsnd_mix_activation(struct rsnd_mod *mod) +{ + rsnd_mod_write(mod, MIX_SWRSR, 0); + rsnd_mod_write(mod, MIX_SWRSR, 1); +} + +static void rsnd_mix_halt(struct rsnd_mod *mod) +{ + rsnd_mod_write(mod, MIX_MIXIR, 1); + rsnd_mod_write(mod, MIX_SWRSR, 0); +} + +#define rsnd_mix_get_vol(mix, X) \ + rsnd_flags_has(mix, HAS_VOL##X) ? \ + (VOL_MAX - rsnd_kctrl_vals(mix->volume##X)) : 0 +static void rsnd_mix_volume_parameter(struct rsnd_dai_stream *io, + struct rsnd_mod *mod) +{ + struct rsnd_priv *priv = rsnd_mod_to_priv(mod); + struct device *dev = rsnd_priv_to_dev(priv); + struct rsnd_mix *mix = rsnd_mod_to_mix(mod); + u32 volA = rsnd_mix_get_vol(mix, A); + u32 volB = rsnd_mix_get_vol(mix, B); + u32 volC = rsnd_mix_get_vol(mix, C); + u32 volD = rsnd_mix_get_vol(mix, D); + + dev_dbg(dev, "MIX A/B/C/D = %02x/%02x/%02x/%02x\n", + volA, volB, volC, volD); + + rsnd_mod_write(mod, MIX_MDBAR, volA); + rsnd_mod_write(mod, MIX_MDBBR, volB); + rsnd_mod_write(mod, MIX_MDBCR, volC); + rsnd_mod_write(mod, MIX_MDBDR, volD); +} + +static void rsnd_mix_volume_init(struct rsnd_dai_stream *io, + struct rsnd_mod *mod) +{ + struct rsnd_mix *mix = rsnd_mod_to_mix(mod); + + rsnd_mod_write(mod, MIX_MIXIR, 1); + + /* General Information */ + rsnd_mod_write(mod, MIX_ADINR, rsnd_runtime_channel_after_ctu(io)); + + /* volume step */ + rsnd_mod_write(mod, MIX_MIXMR, rsnd_kctrl_vals(mix->ren)); + rsnd_mod_write(mod, MIX_MVPDR, rsnd_kctrl_vals(mix->rup) << 8 | + rsnd_kctrl_vals(mix->rdw)); + + /* common volume parameter */ + rsnd_mix_volume_parameter(io, mod); + + rsnd_mod_write(mod, MIX_MIXIR, 0); +} + +static void rsnd_mix_volume_update(struct rsnd_dai_stream *io, + struct rsnd_mod *mod) +{ + /* Disable MIX dB setting */ + rsnd_mod_write(mod, MIX_MDBER, 0); + + /* common volume parameter */ + rsnd_mix_volume_parameter(io, mod); + + /* Enable MIX dB setting */ + rsnd_mod_write(mod, MIX_MDBER, 1); +} + +static int rsnd_mix_probe_(struct rsnd_mod *mod, + struct rsnd_dai_stream *io, + struct rsnd_priv *priv) +{ + return rsnd_cmd_attach(io, rsnd_mod_id(mod)); +} + +static int rsnd_mix_init(struct rsnd_mod *mod, + struct rsnd_dai_stream *io, + struct rsnd_priv *priv) +{ + rsnd_mod_power_on(mod); + + rsnd_mix_activation(mod); + + rsnd_mix_volume_init(io, mod); + + rsnd_mix_volume_update(io, mod); + + return 0; +} + +static int rsnd_mix_quit(struct rsnd_mod *mod, + struct rsnd_dai_stream *io, + struct rsnd_priv *priv) +{ + rsnd_mix_halt(mod); + + rsnd_mod_power_off(mod); + + return 0; +} + +static int rsnd_mix_pcm_new(struct rsnd_mod *mod, + struct rsnd_dai_stream *io, + struct snd_soc_pcm_runtime *rtd) +{ + struct rsnd_priv *priv = rsnd_mod_to_priv(mod); + struct device *dev = rsnd_priv_to_dev(priv); + struct rsnd_mix *mix = rsnd_mod_to_mix(mod); + struct rsnd_mod *src_mod = rsnd_io_to_mod_src(io); + struct rsnd_kctrl_cfg_s *volume; + int ret; + + switch (rsnd_mod_id(src_mod)) { + case 3: + case 6: /* MDBAR */ + volume = &mix->volumeA; + rsnd_flags_set(mix, HAS_VOLA); + break; + case 4: + case 9: /* MDBBR */ + volume = &mix->volumeB; + rsnd_flags_set(mix, HAS_VOLB); + break; + case 0: + case 1: /* MDBCR */ + volume = &mix->volumeC; + rsnd_flags_set(mix, HAS_VOLC); + break; + case 2: + case 5: /* MDBDR */ + volume = &mix->volumeD; + rsnd_flags_set(mix, HAS_VOLD); + break; + default: + dev_err(dev, "unknown SRC is connected\n"); + return -EINVAL; + } + + /* Volume */ + ret = rsnd_kctrl_new_s(mod, io, rtd, + "MIX Playback Volume", + rsnd_kctrl_accept_anytime, + rsnd_mix_volume_update, + volume, VOL_MAX); + if (ret < 0) + return ret; + rsnd_kctrl_vals(*volume) = VOL_MAX; + + if (rsnd_flags_has(mix, ONCE_KCTRL_INITIALIZED)) + return ret; + + /* Ramp */ + ret = rsnd_kctrl_new_s(mod, io, rtd, + "MIX Ramp Switch", + rsnd_kctrl_accept_anytime, + rsnd_mix_volume_update, + &mix->ren, 1); + if (ret < 0) + return ret; + + ret = rsnd_kctrl_new_e(mod, io, rtd, + "MIX Ramp Up Rate", + rsnd_kctrl_accept_anytime, + rsnd_mix_volume_update, + &mix->rup, + volume_ramp_rate, + VOLUME_RAMP_MAX_MIX); + if (ret < 0) + return ret; + + ret = rsnd_kctrl_new_e(mod, io, rtd, + "MIX Ramp Down Rate", + rsnd_kctrl_accept_anytime, + rsnd_mix_volume_update, + &mix->rdw, + volume_ramp_rate, + VOLUME_RAMP_MAX_MIX); + + rsnd_flags_set(mix, ONCE_KCTRL_INITIALIZED); + + return ret; +} + +static struct rsnd_mod_ops rsnd_mix_ops = { + .name = MIX_NAME, + .probe = rsnd_mix_probe_, + .init = rsnd_mix_init, + .quit = rsnd_mix_quit, + .pcm_new = rsnd_mix_pcm_new, +}; + +struct rsnd_mod *rsnd_mix_mod_get(struct rsnd_priv *priv, int id) +{ + if (WARN_ON(id < 0 || id >= rsnd_mix_nr(priv))) + id = 0; + + return rsnd_mod_get(rsnd_mix_get(priv, id)); +} + +int rsnd_mix_probe(struct rsnd_priv *priv) +{ + struct device_node *node; + struct device_node *np; + struct device *dev = rsnd_priv_to_dev(priv); + struct rsnd_mix *mix; + struct clk *clk; + char name[MIX_NAME_SIZE]; + int i, nr, ret; + + /* This driver doesn't support Gen1 at this point */ + if (rsnd_is_gen1(priv)) + return 0; + + node = rsnd_mix_of_node(priv); + if (!node) + return 0; /* not used is not error */ + + nr = of_get_child_count(node); + if (!nr) { + ret = -EINVAL; + goto rsnd_mix_probe_done; + } + + mix = devm_kcalloc(dev, nr, sizeof(*mix), GFP_KERNEL); + if (!mix) { + ret = -ENOMEM; + goto rsnd_mix_probe_done; + } + + priv->mix_nr = nr; + priv->mix = mix; + + i = 0; + ret = 0; + for_each_child_of_node(node, np) { + mix = rsnd_mix_get(priv, i); + + snprintf(name, MIX_NAME_SIZE, "%s.%d", + MIX_NAME, i); + + clk = devm_clk_get(dev, name); + if (IS_ERR(clk)) { + ret = PTR_ERR(clk); + of_node_put(np); + goto rsnd_mix_probe_done; + } + + ret = rsnd_mod_init(priv, rsnd_mod_get(mix), &rsnd_mix_ops, + clk, rsnd_mod_get_status, RSND_MOD_MIX, i); + if (ret) { + of_node_put(np); + goto rsnd_mix_probe_done; + } + + i++; + } + +rsnd_mix_probe_done: + of_node_put(node); + + return ret; +} + +void rsnd_mix_remove(struct rsnd_priv *priv) +{ + struct rsnd_mix *mix; + int i; + + for_each_rsnd_mix(mix, priv, i) { + rsnd_mod_quit(rsnd_mod_get(mix)); + } +} |