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ASoC: rsnd: use mod base common method on SSIU
Renesas sound needs many devices (SSI/SSIU/SRC/CTU/MIX/DVC/CMD/AudioDMAC/AudioDMACpp). SSI/SRC/CTU/MIX/DVC are implemented as module. SSI parent, SSIU are implemented as part of SSI CMD is implemented as part of CTU/MIX/DVC AudioDMAC/AudioDMACpp are implemented as part of SSI/SRC It is nice sense that these all devices are implemented as mod. This patch makes SSIU mod base common method Signed-off-by: Kuninori Morimoto <[email protected]> Signed-off-by: Mark Brown <[email protected]>
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| Original file line number | Diff line number | Diff line change |
|---|---|---|
| @@ -0,0 +1,181 @@ | ||
| /* | ||
| * Renesas R-Car SSIU support | ||
| * | ||
| * Copyright (c) 2015 Kuninori Morimoto <[email protected]> | ||
| * | ||
| * This program is free software; you can redistribute it and/or modify | ||
| * it under the terms of the GNU General Public License version 2 as | ||
| * published by the Free Software Foundation. | ||
| */ | ||
| #include "rsnd.h" | ||
|
|
||
| #define SSIU_NAME "ssiu" | ||
|
|
||
| struct rsnd_ssiu { | ||
| struct rsnd_mod mod; | ||
| }; | ||
|
|
||
| #define rsnd_ssiu_nr(priv) ((priv)->ssiu_nr) | ||
| #define for_each_rsnd_ssiu(pos, priv, i) \ | ||
| for (i = 0; \ | ||
| (i < rsnd_ssiu_nr(priv)) && \ | ||
| ((pos) = ((struct rsnd_ssiu *)(priv)->ssiu + i)); \ | ||
| i++) | ||
|
|
||
| static int rsnd_ssiu_init(struct rsnd_mod *mod, | ||
| struct rsnd_dai_stream *io, | ||
| struct rsnd_priv *priv) | ||
| { | ||
| struct rsnd_dai *rdai = rsnd_io_to_rdai(io); | ||
| int use_busif = rsnd_ssi_use_busif(io); | ||
| int id = rsnd_mod_id(mod); | ||
|
|
||
| /* | ||
| * SSI_MODE0 | ||
| */ | ||
| rsnd_mod_bset(mod, SSI_MODE0, (1 << id), !use_busif << id); | ||
|
|
||
| /* | ||
| * SSI_MODE1 | ||
| */ | ||
| if (rsnd_ssi_is_pin_sharing(io)) { | ||
| int shift = -1; | ||
|
|
||
| switch (id) { | ||
| case 1: | ||
| shift = 0; | ||
| break; | ||
| case 2: | ||
| shift = 2; | ||
| break; | ||
| case 4: | ||
| shift = 16; | ||
| break; | ||
| } | ||
|
|
||
| if (shift >= 0) | ||
| rsnd_mod_bset(mod, SSI_MODE1, | ||
| 0x3 << shift, | ||
| rsnd_rdai_is_clk_master(rdai) ? | ||
| 0x2 << shift : 0x1 << shift); | ||
| } | ||
|
|
||
| return 0; | ||
| } | ||
|
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| static struct rsnd_mod_ops rsnd_ssiu_ops_gen1 = { | ||
| .name = SSIU_NAME, | ||
| .init = rsnd_ssiu_init, | ||
| }; | ||
|
|
||
| static int rsnd_ssiu_init_gen2(struct rsnd_mod *mod, | ||
| struct rsnd_dai_stream *io, | ||
| struct rsnd_priv *priv) | ||
| { | ||
| int ret; | ||
|
|
||
| ret = rsnd_ssiu_init(mod, io, priv); | ||
| if (ret < 0) | ||
| return ret; | ||
|
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| if (rsnd_ssi_use_busif(io)) { | ||
| u32 val = rsnd_get_dalign(mod, io); | ||
|
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| rsnd_mod_write(mod, SSI_BUSIF_ADINR, | ||
| rsnd_get_adinr_bit(mod, io)); | ||
| rsnd_mod_write(mod, SSI_BUSIF_MODE, 1); | ||
| rsnd_mod_write(mod, SSI_BUSIF_DALIGN, val); | ||
| } | ||
|
|
||
| return 0; | ||
| } | ||
|
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| static int rsnd_ssiu_start_gen2(struct rsnd_mod *mod, | ||
| struct rsnd_dai_stream *io, | ||
| struct rsnd_priv *priv) | ||
| { | ||
| if (rsnd_ssi_use_busif(io)) | ||
| rsnd_mod_write(mod, SSI_CTRL, 0x1); | ||
|
|
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| return 0; | ||
| } | ||
|
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| static int rsnd_ssiu_stop_gen2(struct rsnd_mod *mod, | ||
| struct rsnd_dai_stream *io, | ||
| struct rsnd_priv *priv) | ||
| { | ||
| if (rsnd_ssi_use_busif(io)) | ||
| rsnd_mod_write(mod, SSI_CTRL, 0); | ||
|
|
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| return 0; | ||
| } | ||
|
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| static struct rsnd_mod_ops rsnd_ssiu_ops_gen2 = { | ||
| .name = SSIU_NAME, | ||
| .init = rsnd_ssiu_init_gen2, | ||
| .start = rsnd_ssiu_start_gen2, | ||
| .stop = rsnd_ssiu_stop_gen2, | ||
| }; | ||
|
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| static struct rsnd_mod *rsnd_ssiu_mod_get(struct rsnd_priv *priv, int id) | ||
| { | ||
| if (WARN_ON(id < 0 || id >= rsnd_ssiu_nr(priv))) | ||
| id = 0; | ||
|
|
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| return rsnd_mod_get((struct rsnd_ssiu *)(priv->ssiu) + id); | ||
| } | ||
|
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| int rsnd_ssiu_attach(struct rsnd_dai_stream *io, | ||
| struct rsnd_mod *ssi_mod) | ||
| { | ||
| struct rsnd_priv *priv = rsnd_io_to_priv(io); | ||
| struct rsnd_mod *mod = rsnd_ssiu_mod_get(priv, rsnd_mod_id(ssi_mod)); | ||
|
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| rsnd_mod_confirm_ssi(ssi_mod); | ||
|
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| return rsnd_dai_connect(mod, io, mod->type); | ||
| } | ||
|
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| int rsnd_ssiu_probe(struct platform_device *pdev, | ||
| const struct rsnd_of_data *of_data, | ||
| struct rsnd_priv *priv) | ||
| { | ||
| struct device *dev = rsnd_priv_to_dev(priv); | ||
| struct rsnd_ssiu *ssiu; | ||
| static struct rsnd_mod_ops *ops; | ||
| int i, nr, ret; | ||
|
|
||
| /* same number to SSI */ | ||
| nr = priv->ssi_nr; | ||
| ssiu = devm_kzalloc(dev, sizeof(*ssiu) * nr, GFP_KERNEL); | ||
| if (!ssiu) | ||
| return -ENOMEM; | ||
|
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| priv->ssiu = ssiu; | ||
| priv->ssiu_nr = nr; | ||
|
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| if (rsnd_is_gen1(priv)) | ||
| ops = &rsnd_ssiu_ops_gen1; | ||
| else | ||
| ops = &rsnd_ssiu_ops_gen2; | ||
|
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| for_each_rsnd_ssiu(ssiu, priv, i) { | ||
| ret = rsnd_mod_init(priv, rsnd_mod_get(ssiu), | ||
| ops, NULL, RSND_MOD_SSIU, i); | ||
| if (ret) | ||
| return ret; | ||
| } | ||
|
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| return 0; | ||
| } | ||
|
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| void rsnd_ssiu_remove(struct platform_device *pdev, | ||
| struct rsnd_priv *priv) | ||
| { | ||
| struct rsnd_ssiu *ssiu; | ||
| int i; | ||
|
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| for_each_rsnd_ssiu(ssiu, priv, i) { | ||
| rsnd_mod_quit(rsnd_mod_get(ssiu)); | ||
| } | ||
| } |