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