From 2c3c1048746a4622d8c89a29670120dc8fab93c4 Mon Sep 17 00:00:00 2001 From: Daniel Baumann Date: Sun, 7 Apr 2024 20:49:45 +0200 Subject: Adding upstream version 6.1.76. Signed-off-by: Daniel Baumann --- sound/soc/sh/rcar/debugfs.c | 96 +++++++++++++++++++++++++++++++++++++++++++++ 1 file changed, 96 insertions(+) create mode 100644 sound/soc/sh/rcar/debugfs.c (limited to 'sound/soc/sh/rcar/debugfs.c') diff --git a/sound/soc/sh/rcar/debugfs.c b/sound/soc/sh/rcar/debugfs.c new file mode 100644 index 000000000..26d3b310b --- /dev/null +++ b/sound/soc/sh/rcar/debugfs.c @@ -0,0 +1,96 @@ +// SPDX-License-Identifier: GPL-2.0 +// +// // Renesas R-Car debugfs support +// +// Copyright (c) 2021 Kuninori Morimoto +// +// > mount -t debugfs none /sys/kernel/debug +// > cd /sys/kernel/debug/asoc/rcar-sound/ec500000.sound/rdai{N}/ +// > cat playback/xxx +// > cat capture/xxx +// +#ifdef CONFIG_DEBUG_FS + +#include +#include "rsnd.h" + +static int rsnd_debugfs_show(struct seq_file *m, void *v) +{ + struct rsnd_dai_stream *io = m->private; + struct rsnd_mod *mod = rsnd_io_to_mod_ssi(io); + struct rsnd_priv *priv = rsnd_mod_to_priv(mod); + int i; + + /* adg is out of mods */ + rsnd_adg_clk_dbg_info(priv, m); + + for_each_rsnd_mod(i, mod, io) { + u32 *status = mod->ops->get_status(mod, io, mod->type); + + seq_printf(m, "name: %s\n", rsnd_mod_name(mod)); + seq_printf(m, "status: %08x\n", *status); + + if (mod->ops->debug_info) + mod->ops->debug_info(m, io, mod); + } + + return 0; +} +DEFINE_SHOW_ATTRIBUTE(rsnd_debugfs); + +void rsnd_debugfs_reg_show(struct seq_file *m, phys_addr_t _addr, + void __iomem *base, int offset, int size) +{ + int i, j; + + for (i = 0; i < size; i += 0x10) { + phys_addr_t addr = _addr + offset + i; + + seq_printf(m, "%pa:", &addr); + for (j = 0; j < 0x10; j += 0x4) + seq_printf(m, " %08x", __raw_readl(base + offset + i + j)); + seq_puts(m, "\n"); + } +} + +void rsnd_debugfs_mod_reg_show(struct seq_file *m, struct rsnd_mod *mod, + int reg_id, int offset, int size) +{ + struct rsnd_priv *priv = rsnd_mod_to_priv(mod); + + rsnd_debugfs_reg_show(m, + rsnd_gen_get_phy_addr(priv, reg_id), + rsnd_gen_get_base_addr(priv, reg_id), + offset, size); +} + +int rsnd_debugfs_probe(struct snd_soc_component *component) +{ + struct rsnd_priv *priv = dev_get_drvdata(component->dev); + struct rsnd_dai *rdai; + struct dentry *dir; + char name[64]; + int i; + + /* Gen1 is not supported */ + if (rsnd_is_gen1(priv)) + return 0; + + for_each_rsnd_dai(rdai, priv, i) { + /* + * created debugfs will be automatically + * removed, nothing to do for _remove. + * see + * soc_cleanup_component_debugfs() + */ + snprintf(name, sizeof(name), "rdai%d", i); + dir = debugfs_create_dir(name, component->debugfs_root); + + debugfs_create_file("playback", 0444, dir, &rdai->playback, &rsnd_debugfs_fops); + debugfs_create_file("capture", 0444, dir, &rdai->capture, &rsnd_debugfs_fops); + } + + return 0; +} + +#endif /* CONFIG_DEBUG_FS */ -- cgit v1.2.3