#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>
#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,
/* 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];
};
{
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;
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.
*/
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;
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);
{
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);
--- /dev/null
+/*
+ * 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);
+}
OSDN Git Service
