| // 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; |
| } |
| |
| #ifdef CONFIG_DEBUG_FS |
| static void rsnd_mix_debug_info(struct seq_file *m, |
| struct rsnd_dai_stream *io, |
| struct rsnd_mod *mod) |
| { |
| rsnd_debugfs_mod_reg_show(m, mod, RSND_GEN2_SCU, |
| 0xd00 + rsnd_mod_id(mod) * 0x40, 0x30); |
| } |
| #define DEBUG_INFO .debug_info = rsnd_mix_debug_info |
| #else |
| #define DEBUG_INFO |
| #endif |
| |
| 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, |
| .get_status = rsnd_mod_get_status, |
| DEBUG_INFO |
| }; |
| |
| 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_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)); |
| } |
| } |
