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path: root/drivers/usb/chipidea/debug.c
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Diffstat (limited to 'drivers/usb/chipidea/debug.c')
-rw-r--r--drivers/usb/chipidea/debug.c135
1 files changed, 135 insertions, 0 deletions
diff --git a/drivers/usb/chipidea/debug.c b/drivers/usb/chipidea/debug.c
index 96d899aee473..7cccab6ff308 100644
--- a/drivers/usb/chipidea/debug.c
+++ b/drivers/usb/chipidea/debug.c
@@ -7,11 +7,15 @@
#include <linux/uaccess.h>
#include <linux/usb/ch9.h>
#include <linux/usb/gadget.h>
+#include <linux/usb/phy.h>
+#include <linux/usb/otg.h>
+#include <linux/usb/otg-fsm.h>
#include "ci.h"
#include "udc.h"
#include "bits.h"
#include "debug.h"
+#include "otg.h"
/**
* ci_device_show: prints information about device capabilities and status
@@ -204,6 +208,80 @@ static const struct file_operations ci_requests_fops = {
.release = single_release,
};
+int ci_otg_show(struct seq_file *s, void *unused)
+{
+ struct ci_hdrc *ci = s->private;
+ struct otg_fsm *fsm;
+
+ if (!ci || !ci_otg_is_fsm_mode(ci))
+ return 0;
+
+ fsm = &ci->fsm;
+
+ /* ------ State ----- */
+ seq_printf(s, "OTG state: %s\n\n",
+ usb_otg_state_string(ci->transceiver->state));
+
+ /* ------ State Machine Variables ----- */
+ seq_printf(s, "a_bus_drop: %d\n", fsm->a_bus_drop);
+
+ seq_printf(s, "a_bus_req: %d\n", fsm->a_bus_req);
+
+ seq_printf(s, "a_srp_det: %d\n", fsm->a_srp_det);
+
+ seq_printf(s, "a_vbus_vld: %d\n", fsm->a_vbus_vld);
+
+ seq_printf(s, "b_conn: %d\n", fsm->b_conn);
+
+ seq_printf(s, "adp_change: %d\n", fsm->adp_change);
+
+ seq_printf(s, "power_up: %d\n", fsm->power_up);
+
+ seq_printf(s, "a_bus_resume: %d\n", fsm->a_bus_resume);
+
+ seq_printf(s, "a_bus_suspend: %d\n", fsm->a_bus_suspend);
+
+ seq_printf(s, "a_conn: %d\n", fsm->a_conn);
+
+ seq_printf(s, "b_bus_req: %d\n", fsm->b_bus_req);
+
+ seq_printf(s, "b_bus_suspend: %d\n", fsm->b_bus_suspend);
+
+ seq_printf(s, "b_se0_srp: %d\n", fsm->b_se0_srp);
+
+ seq_printf(s, "b_ssend_srp: %d\n", fsm->b_ssend_srp);
+
+ seq_printf(s, "b_sess_vld: %d\n", fsm->b_sess_vld);
+
+ seq_printf(s, "b_srp_done: %d\n", fsm->b_srp_done);
+
+ seq_printf(s, "drv_vbus: %d\n", fsm->drv_vbus);
+
+ seq_printf(s, "loc_conn: %d\n", fsm->loc_conn);
+
+ seq_printf(s, "loc_sof: %d\n", fsm->loc_sof);
+
+ seq_printf(s, "adp_prb: %d\n", fsm->adp_prb);
+
+ seq_printf(s, "id: %d\n", fsm->id);
+
+ seq_printf(s, "protocol: %d\n", fsm->protocol);
+
+ return 0;
+}
+
+static int ci_otg_open(struct inode *inode, struct file *file)
+{
+ return single_open(file, ci_otg_show, inode->i_private);
+}
+
+static const struct file_operations ci_otg_fops = {
+ .open = ci_otg_open,
+ .read = seq_read,
+ .llseek = seq_lseek,
+ .release = single_release,
+};
+
static int ci_role_show(struct seq_file *s, void *data)
{
struct ci_hdrc *ci = s->private;
@@ -253,6 +331,50 @@ static const struct file_operations ci_role_fops = {
.release = single_release,
};
+int ci_registers_show(struct seq_file *s, void *unused)
+{
+ struct ci_hdrc *ci = s->private;
+ u32 tmp_reg;
+
+ if (!ci)
+ return 0;
+
+ /* ------ Registers ----- */
+ tmp_reg = hw_read_intr_enable(ci);
+ seq_printf(s, "USBINTR reg: %08x\n", tmp_reg);
+
+ tmp_reg = hw_read_intr_status(ci);
+ seq_printf(s, "USBSTS reg: %08x\n", tmp_reg);
+
+ tmp_reg = hw_read(ci, OP_USBMODE, ~0);
+ seq_printf(s, "USBMODE reg: %08x\n", tmp_reg);
+
+ tmp_reg = hw_read(ci, OP_USBCMD, ~0);
+ seq_printf(s, "USBCMD reg: %08x\n", tmp_reg);
+
+ tmp_reg = hw_read(ci, OP_PORTSC, ~0);
+ seq_printf(s, "PORTSC reg: %08x\n", tmp_reg);
+
+ if (ci->is_otg) {
+ tmp_reg = hw_read_otgsc(ci, ~0);
+ seq_printf(s, "OTGSC reg: %08x\n", tmp_reg);
+ }
+
+ return 0;
+}
+
+static int ci_registers_open(struct inode *inode, struct file *file)
+{
+ return single_open(file, ci_registers_show, inode->i_private);
+}
+
+static const struct file_operations ci_registers_fops = {
+ .open = ci_registers_open,
+ .read = seq_read,
+ .llseek = seq_lseek,
+ .release = single_release,
+};
+
/**
* dbg_create_files: initializes the attribute interface
* @ci: device
@@ -287,8 +409,21 @@ int dbg_create_files(struct ci_hdrc *ci)
if (!dent)
goto err;
+ if (ci_otg_is_fsm_mode(ci)) {
+ dent = debugfs_create_file("otg", S_IRUGO, ci->debugfs, ci,
+ &ci_otg_fops);
+ if (!dent)
+ goto err;
+ }
+
dent = debugfs_create_file("role", S_IRUGO | S_IWUSR, ci->debugfs, ci,
&ci_role_fops);
+ if (!dent)
+ goto err;
+
+ dent = debugfs_create_file("registers", S_IRUGO, ci->debugfs, ci,
+ &ci_registers_fops);
+
if (dent)
return 0;
err: