diff options
author | Linus Torvalds <torvalds@linux-foundation.org> | 2014-06-08 11:31:16 -0700 |
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committer | Linus Torvalds <torvalds@linux-foundation.org> | 2014-06-08 11:31:16 -0700 |
commit | 3f17ea6dea8ba5668873afa54628a91aaa3fb1c0 (patch) | |
tree | afbeb2accd4c2199ddd705ae943995b143a0af02 /sound/soc/fsl/fsl_ssi_dbg.c | |
parent | 1860e379875dfe7271c649058aeddffe5afd9d0d (diff) | |
parent | 1a5700bc2d10cd379a795fd2bb377a190af5acd4 (diff) |
Merge branch 'next' (accumulated 3.16 merge window patches) into master
Now that 3.15 is released, this merges the 'next' branch into 'master',
bringing us to the normal situation where my 'master' branch is the
merge window.
* accumulated work in next: (6809 commits)
ufs: sb mutex merge + mutex_destroy
powerpc: update comments for generic idle conversion
cris: update comments for generic idle conversion
idle: remove cpu_idle() forward declarations
nbd: zero from and len fields in NBD_CMD_DISCONNECT.
mm: convert some level-less printks to pr_*
MAINTAINERS: adi-buildroot-devel is moderated
MAINTAINERS: add linux-api for review of API/ABI changes
mm/kmemleak-test.c: use pr_fmt for logging
fs/dlm/debug_fs.c: replace seq_printf by seq_puts
fs/dlm/lockspace.c: convert simple_str to kstr
fs/dlm/config.c: convert simple_str to kstr
mm: mark remap_file_pages() syscall as deprecated
mm: memcontrol: remove unnecessary memcg argument from soft limit functions
mm: memcontrol: clean up memcg zoneinfo lookup
mm/memblock.c: call kmemleak directly from memblock_(alloc|free)
mm/mempool.c: update the kmemleak stack trace for mempool allocations
lib/radix-tree.c: update the kmemleak stack trace for radix tree allocations
mm: introduce kmemleak_update_trace()
mm/kmemleak.c: use %u to print ->checksum
...
Diffstat (limited to 'sound/soc/fsl/fsl_ssi_dbg.c')
-rw-r--r-- | sound/soc/fsl/fsl_ssi_dbg.c | 163 |
1 files changed, 163 insertions, 0 deletions
diff --git a/sound/soc/fsl/fsl_ssi_dbg.c b/sound/soc/fsl/fsl_ssi_dbg.c new file mode 100644 index 00000000000..5469ffbc025 --- /dev/null +++ b/sound/soc/fsl/fsl_ssi_dbg.c @@ -0,0 +1,163 @@ +/* + * Freescale SSI ALSA SoC Digital Audio Interface (DAI) debugging functions + * + * Copyright 2014 Markus Pargmann <mpa@pengutronix.de>, Pengutronix + * + * Splitted from fsl_ssi.c + * + * This file is licensed under the terms of the GNU General Public License + * version 2. This program is licensed "as is" without any warranty of any + * kind, whether express or implied. + */ + +#include <linux/debugfs.h> +#include <linux/device.h> +#include <linux/kernel.h> + +#include "fsl_ssi.h" + +void fsl_ssi_dbg_isr(struct fsl_ssi_dbg *dbg, u32 sisr) +{ + if (sisr & CCSR_SSI_SISR_RFRC) + dbg->stats.rfrc++; + + if (sisr & CCSR_SSI_SISR_TFRC) + dbg->stats.tfrc++; + + if (sisr & CCSR_SSI_SISR_CMDAU) + dbg->stats.cmdau++; + + if (sisr & CCSR_SSI_SISR_CMDDU) + dbg->stats.cmddu++; + + if (sisr & CCSR_SSI_SISR_RXT) + dbg->stats.rxt++; + + if (sisr & CCSR_SSI_SISR_RDR1) + dbg->stats.rdr1++; + + if (sisr & CCSR_SSI_SISR_RDR0) + dbg->stats.rdr0++; + + if (sisr & CCSR_SSI_SISR_TDE1) + dbg->stats.tde1++; + + if (sisr & CCSR_SSI_SISR_TDE0) + dbg->stats.tde0++; + + if (sisr & CCSR_SSI_SISR_ROE1) + dbg->stats.roe1++; + + if (sisr & CCSR_SSI_SISR_ROE0) + dbg->stats.roe0++; + + if (sisr & CCSR_SSI_SISR_TUE1) + dbg->stats.tue1++; + + if (sisr & CCSR_SSI_SISR_TUE0) + dbg->stats.tue0++; + + if (sisr & CCSR_SSI_SISR_TFS) + dbg->stats.tfs++; + + if (sisr & CCSR_SSI_SISR_RFS) + dbg->stats.rfs++; + + if (sisr & CCSR_SSI_SISR_TLS) + dbg->stats.tls++; + + if (sisr & CCSR_SSI_SISR_RLS) + dbg->stats.rls++; + + if (sisr & CCSR_SSI_SISR_RFF1) + dbg->stats.rff1++; + + if (sisr & CCSR_SSI_SISR_RFF0) + dbg->stats.rff0++; + + if (sisr & CCSR_SSI_SISR_TFE1) + dbg->stats.tfe1++; + + if (sisr & CCSR_SSI_SISR_TFE0) + dbg->stats.tfe0++; +} + +/* Show the statistics of a flag only if its interrupt is enabled. The + * compiler will optimze this code to a no-op if the interrupt is not + * enabled. + */ +#define SIER_SHOW(flag, name) \ + do { \ + if (CCSR_SSI_SIER_##flag) \ + seq_printf(s, #name "=%u\n", ssi_dbg->stats.name); \ + } while (0) + + +/** + * fsl_sysfs_ssi_show: display SSI statistics + * + * Display the statistics for the current SSI device. To avoid confusion, + * we only show those counts that are enabled. + */ +static int fsl_ssi_stats_show(struct seq_file *s, void *unused) +{ + struct fsl_ssi_dbg *ssi_dbg = s->private; + + SIER_SHOW(RFRC_EN, rfrc); + SIER_SHOW(TFRC_EN, tfrc); + SIER_SHOW(CMDAU_EN, cmdau); + SIER_SHOW(CMDDU_EN, cmddu); + SIER_SHOW(RXT_EN, rxt); + SIER_SHOW(RDR1_EN, rdr1); + SIER_SHOW(RDR0_EN, rdr0); + SIER_SHOW(TDE1_EN, tde1); + SIER_SHOW(TDE0_EN, tde0); + SIER_SHOW(ROE1_EN, roe1); + SIER_SHOW(ROE0_EN, roe0); + SIER_SHOW(TUE1_EN, tue1); + SIER_SHOW(TUE0_EN, tue0); + SIER_SHOW(TFS_EN, tfs); + SIER_SHOW(RFS_EN, rfs); + SIER_SHOW(TLS_EN, tls); + SIER_SHOW(RLS_EN, rls); + SIER_SHOW(RFF1_EN, rff1); + SIER_SHOW(RFF0_EN, rff0); + SIER_SHOW(TFE1_EN, tfe1); + SIER_SHOW(TFE0_EN, tfe0); + + return 0; +} + +static int fsl_ssi_stats_open(struct inode *inode, struct file *file) +{ + return single_open(file, fsl_ssi_stats_show, inode->i_private); +} + +static const struct file_operations fsl_ssi_stats_ops = { + .open = fsl_ssi_stats_open, + .read = seq_read, + .llseek = seq_lseek, + .release = single_release, +}; + +int fsl_ssi_debugfs_create(struct fsl_ssi_dbg *ssi_dbg, struct device *dev) +{ + ssi_dbg->dbg_dir = debugfs_create_dir(dev_name(dev), NULL); + if (!ssi_dbg->dbg_dir) + return -ENOMEM; + + ssi_dbg->dbg_stats = debugfs_create_file("stats", S_IRUGO, + ssi_dbg->dbg_dir, ssi_dbg, &fsl_ssi_stats_ops); + if (!ssi_dbg->dbg_stats) { + debugfs_remove(ssi_dbg->dbg_dir); + return -ENOMEM; + } + + return 0; +} + +void fsl_ssi_debugfs_remove(struct fsl_ssi_dbg *ssi_dbg) +{ + debugfs_remove(ssi_dbg->dbg_stats); + debugfs_remove(ssi_dbg->dbg_dir); +} |