Move all code that is only used for debugging to a seperate file. This makes it easier to see what functions are used for debugging only.
Signed-off-by: Markus Pargmann mpa@pengutronix.de --- sound/soc/fsl/Makefile | 3 +- sound/soc/fsl/fsl_ssi.c | 241 ++------------------------------------------ sound/soc/fsl/fsl_ssi.h | 61 ++++++++++- sound/soc/fsl/fsl_ssi_dbg.c | 163 ++++++++++++++++++++++++++++++ 4 files changed, 232 insertions(+), 236 deletions(-) create mode 100644 sound/soc/fsl/fsl_ssi_dbg.c
diff --git a/sound/soc/fsl/Makefile b/sound/soc/fsl/Makefile index b12ad4b..db254e3 100644 --- a/sound/soc/fsl/Makefile +++ b/sound/soc/fsl/Makefile @@ -12,7 +12,8 @@ obj-$(CONFIG_SND_SOC_P1022_RDK) += snd-soc-p1022-rdk.o
# Freescale SSI/DMA/SAI/SPDIF Support snd-soc-fsl-sai-objs := fsl_sai.o -snd-soc-fsl-ssi-objs := fsl_ssi.o +snd-soc-fsl-ssi-y := fsl_ssi.o +snd-soc-fsl-ssi-$(CONFIG_DEBUG_FS) += fsl_ssi_dbg.o snd-soc-fsl-spdif-objs := fsl_spdif.o snd-soc-fsl-esai-objs := fsl_esai.o snd-soc-fsl-utils-objs := fsl_utils.o diff --git a/sound/soc/fsl/fsl_ssi.c b/sound/soc/fsl/fsl_ssi.c index fadb264..344f752 100644 --- a/sound/soc/fsl/fsl_ssi.c +++ b/sound/soc/fsl/fsl_ssi.c @@ -35,7 +35,6 @@ #include <linux/module.h> #include <linux/interrupt.h> #include <linux/clk.h> -#include <linux/debugfs.h> #include <linux/device.h> #include <linux/delay.h> #include <linux/slab.h> @@ -113,8 +112,6 @@ static inline void write_ssi_mask(u32 __iomem *addr, u32 clear, u32 set) #define FSLSSI_SIER_DBG_TX_FLAGS (CCSR_SSI_SIER_TFE0_EN | \ CCSR_SSI_SIER_TLS_EN | CCSR_SSI_SIER_TFS_EN | \ CCSR_SSI_SIER_TUE0_EN | CCSR_SSI_SIER_TFRC_EN) -#define FSLSSI_SISR_MASK (FSLSSI_SIER_DBG_RX_FLAGS | FSLSSI_SIER_DBG_TX_FLAGS) -
enum fsl_ssi_type { FSL_SSI_MCP8610, @@ -177,31 +174,7 @@ struct fsl_ssi_private { /* Register values for rx/tx configuration */ struct fsl_ssi_rxtx_reg_val rxtx_reg_val;
- struct { - unsigned int rfrc; - unsigned int tfrc; - unsigned int cmdau; - unsigned int cmddu; - unsigned int rxt; - unsigned int rdr1; - unsigned int rdr0; - unsigned int tde1; - unsigned int tde0; - unsigned int roe1; - unsigned int roe0; - unsigned int tue1; - unsigned int tue0; - unsigned int tfs; - unsigned int rfs; - unsigned int tls; - unsigned int rls; - unsigned int rff1; - unsigned int rff0; - unsigned int tfe1; - unsigned int tfe0; - } stats; - struct dentry *dbg_dir; - struct dentry *dbg_stats; + struct fsl_ssi_dbg dbg_stats;
char name[1]; }; @@ -231,7 +204,6 @@ static irqreturn_t fsl_ssi_isr(int irq, void *dev_id) { struct fsl_ssi_private *ssi_private = dev_id; struct ccsr_ssi __iomem *ssi = ssi_private->ssi; - irqreturn_t ret = IRQ_NONE; __be32 sisr; __be32 sisr2; __be32 sisr_write_mask = 0; @@ -258,217 +230,18 @@ static irqreturn_t fsl_ssi_isr(int irq, void *dev_id) were interrupted for. We mask it with the Interrupt Enable register so that we only check for events that we're interested in. */ - sisr = read_ssi(&ssi->sisr) & FSLSSI_SISR_MASK; - - if (sisr & CCSR_SSI_SISR_RFRC) { - ssi_private->stats.rfrc++; - ret = IRQ_HANDLED; - } - - if (sisr & CCSR_SSI_SISR_TFRC) { - ssi_private->stats.tfrc++; - ret = IRQ_HANDLED; - } - - if (sisr & CCSR_SSI_SISR_CMDAU) { - ssi_private->stats.cmdau++; - ret = IRQ_HANDLED; - } - - if (sisr & CCSR_SSI_SISR_CMDDU) { - ssi_private->stats.cmddu++; - ret = IRQ_HANDLED; - } - - if (sisr & CCSR_SSI_SISR_RXT) { - ssi_private->stats.rxt++; - ret = IRQ_HANDLED; - } - - if (sisr & CCSR_SSI_SISR_RDR1) { - ssi_private->stats.rdr1++; - ret = IRQ_HANDLED; - } - - if (sisr & CCSR_SSI_SISR_RDR0) { - ssi_private->stats.rdr0++; - ret = IRQ_HANDLED; - } - - if (sisr & CCSR_SSI_SISR_TDE1) { - ssi_private->stats.tde1++; - ret = IRQ_HANDLED; - } - - if (sisr & CCSR_SSI_SISR_TDE0) { - ssi_private->stats.tde0++; - ret = IRQ_HANDLED; - } - - if (sisr & CCSR_SSI_SISR_ROE1) { - ssi_private->stats.roe1++; - ret = IRQ_HANDLED; - } - - if (sisr & CCSR_SSI_SISR_ROE0) { - ssi_private->stats.roe0++; - ret = IRQ_HANDLED; - } - - if (sisr & CCSR_SSI_SISR_TUE1) { - ssi_private->stats.tue1++; - ret = IRQ_HANDLED; - } - - if (sisr & CCSR_SSI_SISR_TUE0) { - ssi_private->stats.tue0++; - ret = IRQ_HANDLED; - } - - if (sisr & CCSR_SSI_SISR_TFS) { - ssi_private->stats.tfs++; - ret = IRQ_HANDLED; - } - - if (sisr & CCSR_SSI_SISR_RFS) { - ssi_private->stats.rfs++; - ret = IRQ_HANDLED; - } - - if (sisr & CCSR_SSI_SISR_TLS) { - ssi_private->stats.tls++; - ret = IRQ_HANDLED; - } - - if (sisr & CCSR_SSI_SISR_RLS) { - ssi_private->stats.rls++; - ret = IRQ_HANDLED; - } - - if (sisr & CCSR_SSI_SISR_RFF1) { - ssi_private->stats.rff1++; - ret = IRQ_HANDLED; - } - - if (sisr & CCSR_SSI_SISR_RFF0) { - ssi_private->stats.rff0++; - ret = IRQ_HANDLED; - } - - if (sisr & CCSR_SSI_SISR_TFE1) { - ssi_private->stats.tfe1++; - ret = IRQ_HANDLED; - } - - if (sisr & CCSR_SSI_SISR_TFE0) { - ssi_private->stats.tfe0++; - ret = IRQ_HANDLED; - } + sisr = read_ssi(&ssi->sisr);
sisr2 = sisr & sisr_write_mask; /* Clear the bits that we set */ if (sisr2) write_ssi(sisr2, &ssi->sisr);
- return ret; -} - -#if IS_ENABLED(CONFIG_DEBUG_FS) -/* 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 (FSLSSI_SISR_MASK & CCSR_SSI_SIER_##flag) \ - seq_printf(s, #name "=%u\n", ssi_private->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_private *ssi_private = 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, -}; - -static int fsl_ssi_debugfs_create(struct fsl_ssi_private *ssi_private, - struct device *dev) -{ - ssi_private->dbg_dir = debugfs_create_dir(dev_name(dev), NULL); - if (!ssi_private->dbg_dir) - return -ENOMEM; - - ssi_private->dbg_stats = debugfs_create_file("stats", S_IRUGO, - ssi_private->dbg_dir, ssi_private, &fsl_ssi_stats_ops); - if (!ssi_private->dbg_stats) { - debugfs_remove(ssi_private->dbg_dir); - return -ENOMEM; - } - - return 0; -} - -static void fsl_ssi_debugfs_remove(struct fsl_ssi_private *ssi_private) -{ - debugfs_remove(ssi_private->dbg_stats); - debugfs_remove(ssi_private->dbg_dir); -} - -#else - -static int fsl_ssi_debugfs_create(struct fsl_ssi_private *ssi_private, - struct device *dev) -{ - return 0; -} + fsl_ssi_dbg_isr(&ssi_private->dbg_stats, sisr);
-static void fsl_ssi_debugfs_remove(struct fsl_ssi_private *ssi_private) -{ + return IRQ_HANDLED; }
-#endif /* IS_ENABLED(CONFIG_DEBUG_FS) */ - /* * Enable/Disable all rx/tx config flags at once. */ @@ -1452,7 +1225,7 @@ static int fsl_ssi_probe(struct platform_device *pdev) goto error_dev; }
- ret = fsl_ssi_debugfs_create(ssi_private, &pdev->dev); + ret = fsl_ssi_debugfs_create(&ssi_private->dbg_stats, &pdev->dev); if (ret) goto error_dbgfs;
@@ -1522,7 +1295,7 @@ error_dai: imx_pcm_fiq_exit(pdev);
error_pcm: - fsl_ssi_debugfs_remove(ssi_private); + fsl_ssi_debugfs_remove(&ssi_private->dbg_stats);
error_dbgfs: snd_soc_unregister_component(&pdev->dev); @@ -1548,7 +1321,7 @@ static int fsl_ssi_remove(struct platform_device *pdev) { struct fsl_ssi_private *ssi_private = dev_get_drvdata(&pdev->dev);
- fsl_ssi_debugfs_remove(ssi_private); + fsl_ssi_debugfs_remove(&ssi_private->dbg_stats);
if (!ssi_private->new_binding) platform_device_unregister(ssi_private->pdev); diff --git a/sound/soc/fsl/fsl_ssi.h b/sound/soc/fsl/fsl_ssi.h index e6b6324..2e95dd7 100644 --- a/sound/soc/fsl/fsl_ssi.h +++ b/sound/soc/fsl/fsl_ssi.h @@ -206,5 +206,64 @@ struct ccsr_ssi { #define CCSR_SSI_SACNT_FV 0x00000002 #define CCSR_SSI_SACNT_AC97EN 0x00000001
-#endif
+struct device; + +#if IS_ENABLED(CONFIG_DEBUG_FS) + +struct fsl_ssi_dbg { + struct dentry *dbg_dir; + struct dentry *dbg_stats; + + struct { + unsigned int rfrc; + unsigned int tfrc; + unsigned int cmdau; + unsigned int cmddu; + unsigned int rxt; + unsigned int rdr1; + unsigned int rdr0; + unsigned int tde1; + unsigned int tde0; + unsigned int roe1; + unsigned int roe0; + unsigned int tue1; + unsigned int tue0; + unsigned int tfs; + unsigned int rfs; + unsigned int tls; + unsigned int rls; + unsigned int rff1; + unsigned int rff0; + unsigned int tfe1; + unsigned int tfe0; + } stats; +}; + +void fsl_ssi_dbg_isr(struct fsl_ssi_dbg *ssi_dbg, u32 sisr); + +int fsl_ssi_debugfs_create(struct fsl_ssi_dbg *ssi_dbg, struct device *dev); + +void fsl_ssi_debugfs_remove(struct fsl_ssi_dbg *ssi_dbg); + +#else + +struct fsl_ssi_dbg { +}; + +static inline void fsl_ssi_dbg_isr(struct fsl_ssi_dbg *stats, u32 sisr) +{ +} + +static inline int fsl_ssi_debugfs_create(struct fsl_ssi_dbg *ssi_dbg, + struct device *dev) +{ + return 0; +} + +static inline void fsl_ssi_debugfs_remove(struct fsl_ssi_dbg *ssi_dbg) +{ +} +#endif /* ! IS_ENABLED(CONFIG_DEBUG_FS) */ + +#endif diff --git a/sound/soc/fsl/fsl_ssi_dbg.c b/sound/soc/fsl/fsl_ssi_dbg.c new file mode 100644 index 0000000..5469ffb --- /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); +}