diff options
Diffstat (limited to 'sound/soc/sh/rcar/scu.c')
| -rw-r--r-- | sound/soc/sh/rcar/scu.c | 236 |
1 files changed, 0 insertions, 236 deletions
diff --git a/sound/soc/sh/rcar/scu.c b/sound/soc/sh/rcar/scu.c deleted file mode 100644 index 2df2e9150b8..00000000000 --- a/sound/soc/sh/rcar/scu.c +++ /dev/null @@ -1,236 +0,0 @@ -/* - * Renesas R-Car SCU support - * - * Copyright (C) 2013 Renesas Solutions Corp. - * Kuninori Morimoto <kuninori.morimoto.gx@renesas.com> - * - * 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" - -struct rsnd_scu { - struct rsnd_scu_platform_info *info; /* rcar_snd.h */ - struct rsnd_mod mod; -}; - -#define rsnd_scu_mode_flags(p) ((p)->info->flags) - -/* - * ADINR - */ -#define OTBL_24 (0 << 16) -#define OTBL_22 (2 << 16) -#define OTBL_20 (4 << 16) -#define OTBL_18 (6 << 16) -#define OTBL_16 (8 << 16) - - -#define rsnd_mod_to_scu(_mod) \ - container_of((_mod), struct rsnd_scu, mod) - -#define for_each_rsnd_scu(pos, priv, i) \ - for ((i) = 0; \ - ((i) < rsnd_scu_nr(priv)) && \ - ((pos) = (struct rsnd_scu *)(priv)->scu + i); \ - i++) - -static int rsnd_scu_set_route(struct rsnd_priv *priv, - struct rsnd_mod *mod, - struct rsnd_dai *rdai, - struct rsnd_dai_stream *io) -{ - struct scu_route_config { - u32 mask; - int shift; - } routes[] = { - { 0xF, 0, }, /* 0 */ - { 0xF, 4, }, /* 1 */ - { 0xF, 8, }, /* 2 */ - { 0x7, 12, }, /* 3 */ - { 0x7, 16, }, /* 4 */ - { 0x7, 20, }, /* 5 */ - { 0x7, 24, }, /* 6 */ - { 0x3, 28, }, /* 7 */ - { 0x3, 30, }, /* 8 */ - }; - - u32 mask; - u32 val; - int shift; - int id; - - /* - * Gen1 only - */ - if (!rsnd_is_gen1(priv)) - return 0; - - id = rsnd_mod_id(mod); - if (id < 0 || id > ARRAY_SIZE(routes)) - return -EIO; - - /* - * SRC_ROUTE_SELECT - */ - val = rsnd_dai_is_play(rdai, io) ? 0x1 : 0x2; - val = val << routes[id].shift; - mask = routes[id].mask << routes[id].shift; - - rsnd_mod_bset(mod, SRC_ROUTE_SEL, mask, val); - - /* - * SRC_TIMING_SELECT - */ - shift = (id % 4) * 8; - mask = 0x1F << shift; - if (8 == id) /* SRU8 is very special */ - val = id << shift; - else - val = (id + 1) << shift; - - switch (id / 4) { - case 0: - rsnd_mod_bset(mod, SRC_TMG_SEL0, mask, val); - break; - case 1: - rsnd_mod_bset(mod, SRC_TMG_SEL1, mask, val); - break; - case 2: - rsnd_mod_bset(mod, SRC_TMG_SEL2, mask, val); - break; - } - - return 0; -} - -static int rsnd_scu_set_mode(struct rsnd_priv *priv, - struct rsnd_mod *mod, - struct rsnd_dai *rdai, - struct rsnd_dai_stream *io) -{ - int id = rsnd_mod_id(mod); - u32 val; - - if (rsnd_is_gen1(priv)) { - val = (1 << id); - rsnd_mod_bset(mod, SRC_CTRL, val, val); - } - - return 0; -} - -static int rsnd_scu_set_hpbif(struct rsnd_priv *priv, - struct rsnd_mod *mod, - struct rsnd_dai *rdai, - struct rsnd_dai_stream *io) -{ - struct snd_pcm_runtime *runtime = rsnd_io_to_runtime(io); - u32 adinr = runtime->channels; - - switch (runtime->sample_bits) { - case 16: - adinr |= OTBL_16; - break; - case 32: - adinr |= OTBL_24; - break; - default: - return -EIO; - } - - rsnd_mod_write(mod, BUSIF_MODE, 1); - rsnd_mod_write(mod, BUSIF_ADINR, adinr); - - return 0; -} - -static int rsnd_scu_start(struct rsnd_mod *mod, - struct rsnd_dai *rdai, - struct rsnd_dai_stream *io) -{ - struct rsnd_priv *priv = rsnd_mod_to_priv(mod); - struct rsnd_scu *scu = rsnd_mod_to_scu(mod); - struct device *dev = rsnd_priv_to_dev(priv); - u32 flags = rsnd_scu_mode_flags(scu); - int ret; - - /* - * SCU will be used if it has RSND_SCU_USE_HPBIF flags - */ - if (!(flags & RSND_SCU_USE_HPBIF)) { - /* it use PIO transter */ - dev_dbg(dev, "%s%d is not used\n", - rsnd_mod_name(mod), rsnd_mod_id(mod)); - - return 0; - } - - /* it use DMA transter */ - ret = rsnd_scu_set_route(priv, mod, rdai, io); - if (ret < 0) - return ret; - - ret = rsnd_scu_set_mode(priv, mod, rdai, io); - if (ret < 0) - return ret; - - ret = rsnd_scu_set_hpbif(priv, mod, rdai, io); - if (ret < 0) - return ret; - - dev_dbg(dev, "%s%d start\n", rsnd_mod_name(mod), rsnd_mod_id(mod)); - - return 0; -} - -static struct rsnd_mod_ops rsnd_scu_ops = { - .name = "scu", - .start = rsnd_scu_start, -}; - -struct rsnd_mod *rsnd_scu_mod_get(struct rsnd_priv *priv, int id) -{ - BUG_ON(id < 0 || id >= rsnd_scu_nr(priv)); - - return &((struct rsnd_scu *)(priv->scu) + id)->mod; -} - -int rsnd_scu_probe(struct platform_device *pdev, - struct rcar_snd_info *info, - struct rsnd_priv *priv) -{ - struct device *dev = rsnd_priv_to_dev(priv); - struct rsnd_scu *scu; - int i, nr; - - /* - * init SCU - */ - nr = info->scu_info_nr; - scu = devm_kzalloc(dev, sizeof(*scu) * nr, GFP_KERNEL); - if (!scu) { - dev_err(dev, "SCU allocate failed\n"); - return -ENOMEM; - } - - priv->scu_nr = nr; - priv->scu = scu; - - for_each_rsnd_scu(scu, priv, i) { - rsnd_mod_init(priv, &scu->mod, - &rsnd_scu_ops, i); - scu->info = &info->scu_info[i]; - - dev_dbg(dev, "SCU%d probed\n", i); - } - dev_dbg(dev, "scu probed\n"); - - return 0; -} - -void rsnd_scu_remove(struct platform_device *pdev, - struct rsnd_priv *priv) -{ -} |