4 * Copyright (c) 2015 Kuninori Morimoto <kuninori.morimoto.gx@renesas.com>
6 * This program is free software; you can redistribute it and/or modify
7 * it under the terms of the GNU General Public License version 2 as
8 * published by the Free Software Foundation.
12 #define MIX_NAME_SIZE 16
13 #define MIX_NAME "mix"
19 #define rsnd_mix_get(priv, id) ((struct rsnd_mix *)(priv->mix) + id)
20 #define rsnd_mix_nr(priv) ((priv)->mix_nr)
21 #define for_each_rsnd_mix(pos, priv, i) \
23 ((i) < rsnd_mix_nr(priv)) && \
24 ((pos) = (struct rsnd_mix *)(priv)->mix + i); \
27 static void rsnd_mix_activation(struct rsnd_mod *mod)
29 rsnd_mod_write(mod, MIX_SWRSR, 0);
30 rsnd_mod_write(mod, MIX_SWRSR, 1);
33 static void rsnd_mix_halt(struct rsnd_mod *mod)
35 rsnd_mod_write(mod, MIX_MIXIR, 1);
36 rsnd_mod_write(mod, MIX_SWRSR, 0);
39 static void rsnd_mix_volume_parameter(struct rsnd_dai_stream *io,
42 rsnd_mod_write(mod, MIX_MDBAR, 0);
43 rsnd_mod_write(mod, MIX_MDBBR, 0);
44 rsnd_mod_write(mod, MIX_MDBCR, 0);
45 rsnd_mod_write(mod, MIX_MDBDR, 0);
48 static void rsnd_mix_volume_init(struct rsnd_dai_stream *io,
51 rsnd_mod_write(mod, MIX_MIXIR, 1);
53 /* General Information */
54 rsnd_mod_write(mod, MIX_ADINR, rsnd_runtime_channel_after_ctu(io));
57 rsnd_mod_write(mod, MIX_MIXMR, 0);
58 rsnd_mod_write(mod, MIX_MVPDR, 0);
60 /* common volume parameter */
61 rsnd_mix_volume_parameter(io, mod);
63 rsnd_mod_write(mod, MIX_MIXIR, 0);
66 static void rsnd_mix_volume_update(struct rsnd_dai_stream *io,
69 /* Disable MIX dB setting */
70 rsnd_mod_write(mod, MIX_MDBER, 0);
72 /* common volume parameter */
73 rsnd_mix_volume_parameter(io, mod);
75 /* Enable MIX dB setting */
76 rsnd_mod_write(mod, MIX_MDBER, 1);
79 static int rsnd_mix_probe_(struct rsnd_mod *mod,
80 struct rsnd_dai_stream *io,
81 struct rsnd_priv *priv)
83 return rsnd_cmd_attach(io, rsnd_mod_id(mod));
86 static int rsnd_mix_init(struct rsnd_mod *mod,
87 struct rsnd_dai_stream *io,
88 struct rsnd_priv *priv)
90 rsnd_mod_power_on(mod);
92 rsnd_mix_activation(mod);
94 rsnd_mix_volume_init(io, mod);
96 rsnd_mix_volume_update(io, mod);
101 static int rsnd_mix_quit(struct rsnd_mod *mod,
102 struct rsnd_dai_stream *io,
103 struct rsnd_priv *priv)
107 rsnd_mod_power_off(mod);
112 static struct rsnd_mod_ops rsnd_mix_ops = {
114 .probe = rsnd_mix_probe_,
115 .init = rsnd_mix_init,
116 .quit = rsnd_mix_quit,
119 struct rsnd_mod *rsnd_mix_mod_get(struct rsnd_priv *priv, int id)
121 if (WARN_ON(id < 0 || id >= rsnd_mix_nr(priv)))
124 return rsnd_mod_get(rsnd_mix_get(priv, id));
127 int rsnd_mix_probe(struct rsnd_priv *priv)
129 struct device_node *node;
130 struct device_node *np;
131 struct device *dev = rsnd_priv_to_dev(priv);
132 struct rsnd_mix *mix;
134 char name[MIX_NAME_SIZE];
137 /* This driver doesn't support Gen1 at this point */
138 if (rsnd_is_gen1(priv))
141 node = rsnd_mix_of_node(priv);
143 return 0; /* not used is not error */
145 nr = of_get_child_count(node);
148 goto rsnd_mix_probe_done;
151 mix = devm_kzalloc(dev, sizeof(*mix) * nr, GFP_KERNEL);
154 goto rsnd_mix_probe_done;
162 for_each_child_of_node(node, np) {
163 mix = rsnd_mix_get(priv, i);
165 snprintf(name, MIX_NAME_SIZE, "%s.%d",
168 clk = devm_clk_get(dev, name);
171 goto rsnd_mix_probe_done;
174 ret = rsnd_mod_init(priv, rsnd_mod_get(mix), &rsnd_mix_ops,
175 clk, rsnd_mod_get_status, RSND_MOD_MIX, i);
177 goto rsnd_mix_probe_done;
188 void rsnd_mix_remove(struct rsnd_priv *priv)
190 struct rsnd_mix *mix;
193 for_each_rsnd_mix(mix, priv, i) {
194 rsnd_mod_quit(rsnd_mod_get(mix));