432 lines
11 KiB
C
432 lines
11 KiB
C
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// SPDX-License-Identifier: GPL-2.0
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//
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// ctu.c
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//
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// Copyright (c) 2015 Kuninori Morimoto <kuninori.morimoto.gx@renesas.com>
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#include "rsnd.h"
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#define CTU_NAME_SIZE 16
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#define CTU_NAME "ctu"
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/*
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* User needs to setup CTU by amixer, and its settings are
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* based on below registers
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*
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* CTUn_CPMDR : amixser set "CTU Pass"
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* CTUn_SV0xR : amixser set "CTU SV0"
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* CTUn_SV1xR : amixser set "CTU SV1"
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* CTUn_SV2xR : amixser set "CTU SV2"
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* CTUn_SV3xR : amixser set "CTU SV3"
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*
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* [CTU Pass]
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* 0000: default
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* 0001: Connect input data of channel 0
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* 0010: Connect input data of channel 1
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* 0011: Connect input data of channel 2
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* 0100: Connect input data of channel 3
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* 0101: Connect input data of channel 4
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* 0110: Connect input data of channel 5
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* 0111: Connect input data of channel 6
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* 1000: Connect input data of channel 7
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* 1001: Connect calculated data by scale values of matrix row 0
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* 1010: Connect calculated data by scale values of matrix row 1
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* 1011: Connect calculated data by scale values of matrix row 2
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* 1100: Connect calculated data by scale values of matrix row 3
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*
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* [CTU SVx]
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* [Output0] = [SV00, SV01, SV02, SV03, SV04, SV05, SV06, SV07]
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* [Output1] = [SV10, SV11, SV12, SV13, SV14, SV15, SV16, SV17]
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* [Output2] = [SV20, SV21, SV22, SV23, SV24, SV25, SV26, SV27]
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* [Output3] = [SV30, SV31, SV32, SV33, SV34, SV35, SV36, SV37]
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* [Output4] = [ 0, 0, 0, 0, 0, 0, 0, 0 ]
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* [Output5] = [ 0, 0, 0, 0, 0, 0, 0, 0 ]
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* [Output6] = [ 0, 0, 0, 0, 0, 0, 0, 0 ]
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* [Output7] = [ 0, 0, 0, 0, 0, 0, 0, 0 ]
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*
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* [SVxx]
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* Plus Minus
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* value time dB value time dB
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* -----------------------------------------------------------------------
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* H'7F_FFFF 2 6 H'80_0000 2 6
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* ...
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* H'40_0000 1 0 H'C0_0000 1 0
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* ...
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* H'00_0001 2.38 x 10^-7 -132
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* H'00_0000 0 Mute H'FF_FFFF 2.38 x 10^-7 -132
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*
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*
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* Ex) Input ch -> Output ch
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* 1ch -> 0ch
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* 0ch -> 1ch
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*
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* amixer set "CTU Reset" on
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* amixer set "CTU Pass" 9,10
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* amixer set "CTU SV0" 0,4194304
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* amixer set "CTU SV1" 4194304,0
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* or
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* amixer set "CTU Reset" on
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* amixer set "CTU Pass" 2,1
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*/
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struct rsnd_ctu {
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struct rsnd_mod mod;
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struct rsnd_kctrl_cfg_m pass;
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struct rsnd_kctrl_cfg_m sv0;
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struct rsnd_kctrl_cfg_m sv1;
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struct rsnd_kctrl_cfg_m sv2;
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struct rsnd_kctrl_cfg_m sv3;
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struct rsnd_kctrl_cfg_s reset;
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int channels;
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u32 flags;
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};
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#define KCTRL_INITIALIZED (1 << 0)
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#define rsnd_ctu_nr(priv) ((priv)->ctu_nr)
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#define for_each_rsnd_ctu(pos, priv, i) \
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for ((i) = 0; \
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((i) < rsnd_ctu_nr(priv)) && \
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((pos) = (struct rsnd_ctu *)(priv)->ctu + i); \
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i++)
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#define rsnd_mod_to_ctu(_mod) \
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container_of((_mod), struct rsnd_ctu, mod)
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#define rsnd_ctu_get(priv, id) ((struct rsnd_ctu *)(priv->ctu) + id)
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static void rsnd_ctu_activation(struct rsnd_mod *mod)
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{
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rsnd_mod_write(mod, CTU_SWRSR, 0);
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rsnd_mod_write(mod, CTU_SWRSR, 1);
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}
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static void rsnd_ctu_halt(struct rsnd_mod *mod)
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{
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rsnd_mod_write(mod, CTU_CTUIR, 1);
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rsnd_mod_write(mod, CTU_SWRSR, 0);
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}
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int rsnd_ctu_converted_channel(struct rsnd_mod *mod)
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{
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struct rsnd_ctu *ctu = rsnd_mod_to_ctu(mod);
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return ctu->channels;
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}
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static int rsnd_ctu_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) / 4);
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}
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static void rsnd_ctu_value_init(struct rsnd_dai_stream *io,
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struct rsnd_mod *mod)
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{
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struct rsnd_ctu *ctu = rsnd_mod_to_ctu(mod);
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u32 cpmdr = 0;
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u32 scmdr = 0;
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int i;
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for (i = 0; i < RSND_MAX_CHANNELS; i++) {
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u32 val = rsnd_kctrl_valm(ctu->pass, i);
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cpmdr |= val << (28 - (i * 4));
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if ((val > 0x8) && (scmdr < (val - 0x8)))
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scmdr = val - 0x8;
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}
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rsnd_mod_write(mod, CTU_CTUIR, 1);
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rsnd_mod_write(mod, CTU_ADINR, rsnd_runtime_channel_original(io));
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rsnd_mod_write(mod, CTU_CPMDR, cpmdr);
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rsnd_mod_write(mod, CTU_SCMDR, scmdr);
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if (scmdr > 0) {
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rsnd_mod_write(mod, CTU_SV00R, rsnd_kctrl_valm(ctu->sv0, 0));
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rsnd_mod_write(mod, CTU_SV01R, rsnd_kctrl_valm(ctu->sv0, 1));
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rsnd_mod_write(mod, CTU_SV02R, rsnd_kctrl_valm(ctu->sv0, 2));
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rsnd_mod_write(mod, CTU_SV03R, rsnd_kctrl_valm(ctu->sv0, 3));
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rsnd_mod_write(mod, CTU_SV04R, rsnd_kctrl_valm(ctu->sv0, 4));
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rsnd_mod_write(mod, CTU_SV05R, rsnd_kctrl_valm(ctu->sv0, 5));
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rsnd_mod_write(mod, CTU_SV06R, rsnd_kctrl_valm(ctu->sv0, 6));
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rsnd_mod_write(mod, CTU_SV07R, rsnd_kctrl_valm(ctu->sv0, 7));
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}
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if (scmdr > 1) {
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rsnd_mod_write(mod, CTU_SV10R, rsnd_kctrl_valm(ctu->sv1, 0));
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rsnd_mod_write(mod, CTU_SV11R, rsnd_kctrl_valm(ctu->sv1, 1));
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rsnd_mod_write(mod, CTU_SV12R, rsnd_kctrl_valm(ctu->sv1, 2));
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rsnd_mod_write(mod, CTU_SV13R, rsnd_kctrl_valm(ctu->sv1, 3));
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rsnd_mod_write(mod, CTU_SV14R, rsnd_kctrl_valm(ctu->sv1, 4));
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rsnd_mod_write(mod, CTU_SV15R, rsnd_kctrl_valm(ctu->sv1, 5));
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rsnd_mod_write(mod, CTU_SV16R, rsnd_kctrl_valm(ctu->sv1, 6));
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rsnd_mod_write(mod, CTU_SV17R, rsnd_kctrl_valm(ctu->sv1, 7));
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}
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if (scmdr > 2) {
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rsnd_mod_write(mod, CTU_SV20R, rsnd_kctrl_valm(ctu->sv2, 0));
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rsnd_mod_write(mod, CTU_SV21R, rsnd_kctrl_valm(ctu->sv2, 1));
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rsnd_mod_write(mod, CTU_SV22R, rsnd_kctrl_valm(ctu->sv2, 2));
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rsnd_mod_write(mod, CTU_SV23R, rsnd_kctrl_valm(ctu->sv2, 3));
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rsnd_mod_write(mod, CTU_SV24R, rsnd_kctrl_valm(ctu->sv2, 4));
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rsnd_mod_write(mod, CTU_SV25R, rsnd_kctrl_valm(ctu->sv2, 5));
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rsnd_mod_write(mod, CTU_SV26R, rsnd_kctrl_valm(ctu->sv2, 6));
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rsnd_mod_write(mod, CTU_SV27R, rsnd_kctrl_valm(ctu->sv2, 7));
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}
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if (scmdr > 3) {
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rsnd_mod_write(mod, CTU_SV30R, rsnd_kctrl_valm(ctu->sv3, 0));
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rsnd_mod_write(mod, CTU_SV31R, rsnd_kctrl_valm(ctu->sv3, 1));
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rsnd_mod_write(mod, CTU_SV32R, rsnd_kctrl_valm(ctu->sv3, 2));
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rsnd_mod_write(mod, CTU_SV33R, rsnd_kctrl_valm(ctu->sv3, 3));
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rsnd_mod_write(mod, CTU_SV34R, rsnd_kctrl_valm(ctu->sv3, 4));
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rsnd_mod_write(mod, CTU_SV35R, rsnd_kctrl_valm(ctu->sv3, 5));
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rsnd_mod_write(mod, CTU_SV36R, rsnd_kctrl_valm(ctu->sv3, 6));
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rsnd_mod_write(mod, CTU_SV37R, rsnd_kctrl_valm(ctu->sv3, 7));
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}
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rsnd_mod_write(mod, CTU_CTUIR, 0);
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}
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static void rsnd_ctu_value_reset(struct rsnd_dai_stream *io,
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struct rsnd_mod *mod)
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{
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struct rsnd_ctu *ctu = rsnd_mod_to_ctu(mod);
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int i;
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if (!rsnd_kctrl_vals(ctu->reset))
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return;
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for (i = 0; i < RSND_MAX_CHANNELS; i++) {
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rsnd_kctrl_valm(ctu->pass, i) = 0;
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rsnd_kctrl_valm(ctu->sv0, i) = 0;
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rsnd_kctrl_valm(ctu->sv1, i) = 0;
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rsnd_kctrl_valm(ctu->sv2, i) = 0;
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rsnd_kctrl_valm(ctu->sv3, i) = 0;
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}
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rsnd_kctrl_vals(ctu->reset) = 0;
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}
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static int rsnd_ctu_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_ctu_activation(mod);
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rsnd_ctu_value_init(io, mod);
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return 0;
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}
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static int rsnd_ctu_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_ctu_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_ctu_hw_params(struct rsnd_mod *mod,
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struct rsnd_dai_stream *io,
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struct snd_pcm_substream *substream,
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struct snd_pcm_hw_params *fe_params)
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{
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struct rsnd_ctu *ctu = rsnd_mod_to_ctu(mod);
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struct snd_soc_pcm_runtime *fe = substream->private_data;
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/*
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* CTU assumes that it is used under DPCM if user want to use
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* channel transfer. Then, CTU should be FE.
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* And then, this function will be called *after* BE settings.
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* this means, each BE already has fixuped hw_params.
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* see
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* dpcm_fe_dai_hw_params()
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* dpcm_be_dai_hw_params()
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*/
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ctu->channels = 0;
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if (fe->dai_link->dynamic) {
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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 snd_soc_dpcm *dpcm;
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struct snd_pcm_hw_params *be_params;
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int stream = substream->stream;
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list_for_each_entry(dpcm, &fe->dpcm[stream].be_clients, list_be) {
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be_params = &dpcm->hw_params;
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if (params_channels(fe_params) != params_channels(be_params))
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ctu->channels = params_channels(be_params);
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}
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dev_dbg(dev, "CTU convert channels %d\n", ctu->channels);
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}
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return 0;
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}
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static int rsnd_ctu_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_ctu *ctu = rsnd_mod_to_ctu(mod);
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int ret;
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if (rsnd_flags_has(ctu, KCTRL_INITIALIZED))
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return 0;
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/* CTU Pass */
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ret = rsnd_kctrl_new_m(mod, io, rtd, "CTU Pass",
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rsnd_kctrl_accept_anytime,
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NULL,
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&ctu->pass, RSND_MAX_CHANNELS,
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0xC);
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/* ROW0 */
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ret = rsnd_kctrl_new_m(mod, io, rtd, "CTU SV0",
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rsnd_kctrl_accept_anytime,
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NULL,
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&ctu->sv0, RSND_MAX_CHANNELS,
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0x00FFFFFF);
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if (ret < 0)
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return ret;
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/* ROW1 */
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ret = rsnd_kctrl_new_m(mod, io, rtd, "CTU SV1",
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rsnd_kctrl_accept_anytime,
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NULL,
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&ctu->sv1, RSND_MAX_CHANNELS,
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0x00FFFFFF);
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if (ret < 0)
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return ret;
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/* ROW2 */
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ret = rsnd_kctrl_new_m(mod, io, rtd, "CTU SV2",
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rsnd_kctrl_accept_anytime,
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NULL,
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&ctu->sv2, RSND_MAX_CHANNELS,
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0x00FFFFFF);
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if (ret < 0)
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return ret;
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/* ROW3 */
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ret = rsnd_kctrl_new_m(mod, io, rtd, "CTU SV3",
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rsnd_kctrl_accept_anytime,
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NULL,
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&ctu->sv3, RSND_MAX_CHANNELS,
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0x00FFFFFF);
|
||
|
|
if (ret < 0)
|
||
|
|
return ret;
|
||
|
|
|
||
|
|
/* Reset */
|
||
|
|
ret = rsnd_kctrl_new_s(mod, io, rtd, "CTU Reset",
|
||
|
|
rsnd_kctrl_accept_anytime,
|
||
|
|
rsnd_ctu_value_reset,
|
||
|
|
&ctu->reset, 1);
|
||
|
|
|
||
|
|
rsnd_flags_set(ctu, KCTRL_INITIALIZED);
|
||
|
|
|
||
|
|
return ret;
|
||
|
|
}
|
||
|
|
|
||
|
|
static struct rsnd_mod_ops rsnd_ctu_ops = {
|
||
|
|
.name = CTU_NAME,
|
||
|
|
.probe = rsnd_ctu_probe_,
|
||
|
|
.init = rsnd_ctu_init,
|
||
|
|
.quit = rsnd_ctu_quit,
|
||
|
|
.hw_params = rsnd_ctu_hw_params,
|
||
|
|
.pcm_new = rsnd_ctu_pcm_new,
|
||
|
|
};
|
||
|
|
|
||
|
|
struct rsnd_mod *rsnd_ctu_mod_get(struct rsnd_priv *priv, int id)
|
||
|
|
{
|
||
|
|
if (WARN_ON(id < 0 || id >= rsnd_ctu_nr(priv)))
|
||
|
|
id = 0;
|
||
|
|
|
||
|
|
return rsnd_mod_get(rsnd_ctu_get(priv, id));
|
||
|
|
}
|
||
|
|
|
||
|
|
int rsnd_ctu_probe(struct rsnd_priv *priv)
|
||
|
|
{
|
||
|
|
struct device_node *node;
|
||
|
|
struct device_node *np;
|
||
|
|
struct device *dev = rsnd_priv_to_dev(priv);
|
||
|
|
struct rsnd_ctu *ctu;
|
||
|
|
struct clk *clk;
|
||
|
|
char name[CTU_NAME_SIZE];
|
||
|
|
int i, nr, ret;
|
||
|
|
|
||
|
|
/* This driver doesn't support Gen1 at this point */
|
||
|
|
if (rsnd_is_gen1(priv))
|
||
|
|
return 0;
|
||
|
|
|
||
|
|
node = rsnd_ctu_of_node(priv);
|
||
|
|
if (!node)
|
||
|
|
return 0; /* not used is not error */
|
||
|
|
|
||
|
|
nr = of_get_child_count(node);
|
||
|
|
if (!nr) {
|
||
|
|
ret = -EINVAL;
|
||
|
|
goto rsnd_ctu_probe_done;
|
||
|
|
}
|
||
|
|
|
||
|
|
ctu = devm_kcalloc(dev, nr, sizeof(*ctu), GFP_KERNEL);
|
||
|
|
if (!ctu) {
|
||
|
|
ret = -ENOMEM;
|
||
|
|
goto rsnd_ctu_probe_done;
|
||
|
|
}
|
||
|
|
|
||
|
|
priv->ctu_nr = nr;
|
||
|
|
priv->ctu = ctu;
|
||
|
|
|
||
|
|
i = 0;
|
||
|
|
ret = 0;
|
||
|
|
for_each_child_of_node(node, np) {
|
||
|
|
ctu = rsnd_ctu_get(priv, i);
|
||
|
|
|
||
|
|
/*
|
||
|
|
* CTU00, CTU01, CTU02, CTU03 => CTU0
|
||
|
|
* CTU10, CTU11, CTU12, CTU13 => CTU1
|
||
|
|
*/
|
||
|
|
snprintf(name, CTU_NAME_SIZE, "%s.%d",
|
||
|
|
CTU_NAME, i / 4);
|
||
|
|
|
||
|
|
clk = devm_clk_get(dev, name);
|
||
|
|
if (IS_ERR(clk)) {
|
||
|
|
ret = PTR_ERR(clk);
|
||
|
|
of_node_put(np);
|
||
|
|
goto rsnd_ctu_probe_done;
|
||
|
|
}
|
||
|
|
|
||
|
|
ret = rsnd_mod_init(priv, rsnd_mod_get(ctu), &rsnd_ctu_ops,
|
||
|
|
clk, rsnd_mod_get_status, RSND_MOD_CTU, i);
|
||
|
|
if (ret) {
|
||
|
|
of_node_put(np);
|
||
|
|
goto rsnd_ctu_probe_done;
|
||
|
|
}
|
||
|
|
|
||
|
|
i++;
|
||
|
|
}
|
||
|
|
|
||
|
|
|
||
|
|
rsnd_ctu_probe_done:
|
||
|
|
of_node_put(node);
|
||
|
|
|
||
|
|
return ret;
|
||
|
|
}
|
||
|
|
|
||
|
|
void rsnd_ctu_remove(struct rsnd_priv *priv)
|
||
|
|
{
|
||
|
|
struct rsnd_ctu *ctu;
|
||
|
|
int i;
|
||
|
|
|
||
|
|
for_each_rsnd_ctu(ctu, priv, i) {
|
||
|
|
rsnd_mod_quit(rsnd_mod_get(ctu));
|
||
|
|
}
|
||
|
|
}
|