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path: root/drivers/usb/phy/phy-fsl-usb.c
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Diffstat (limited to 'drivers/usb/phy/phy-fsl-usb.c')
-rw-r--r--drivers/usb/phy/phy-fsl-usb.c104
1 files changed, 79 insertions, 25 deletions
diff --git a/drivers/usb/phy/phy-fsl-usb.c b/drivers/usb/phy/phy-fsl-usb.c
index fa7c9f9628b..2b0f968d932 100644
--- a/drivers/usb/phy/phy-fsl-usb.c
+++ b/drivers/usb/phy/phy-fsl-usb.c
@@ -27,7 +27,6 @@
#include <linux/slab.h>
#include <linux/proc_fs.h>
#include <linux/errno.h>
-#include <linux/init.h>
#include <linux/interrupt.h>
#include <linux/io.h>
#include <linux/timer.h>
@@ -134,7 +133,7 @@ int write_ulpi(u8 addr, u8 data)
/* Operations that will be called from OTG Finite State Machine */
/* Charge vbus for vbus pulsing in SRP */
-void fsl_otg_chrg_vbus(int on)
+void fsl_otg_chrg_vbus(struct otg_fsm *fsm, int on)
{
u32 tmp;
@@ -170,7 +169,7 @@ void fsl_otg_dischrg_vbus(int on)
}
/* A-device driver vbus, controlled through PP bit in PORTSC */
-void fsl_otg_drv_vbus(int on)
+void fsl_otg_drv_vbus(struct otg_fsm *fsm, int on)
{
u32 tmp;
@@ -188,7 +187,7 @@ void fsl_otg_drv_vbus(int on)
* Pull-up D+, signalling connect by periperal. Also used in
* data-line pulsing in SRP
*/
-void fsl_otg_loc_conn(int on)
+void fsl_otg_loc_conn(struct otg_fsm *fsm, int on)
{
u32 tmp;
@@ -207,7 +206,7 @@ void fsl_otg_loc_conn(int on)
* port. In host mode, controller will automatically send SOF.
* Suspend will block the data on the port.
*/
-void fsl_otg_loc_sof(int on)
+void fsl_otg_loc_sof(struct otg_fsm *fsm, int on)
{
u32 tmp;
@@ -222,7 +221,7 @@ void fsl_otg_loc_sof(int on)
}
/* Start SRP pulsing by data-line pulsing, followed with v-bus pulsing. */
-void fsl_otg_start_pulse(void)
+void fsl_otg_start_pulse(struct otg_fsm *fsm)
{
u32 tmp;
@@ -235,7 +234,7 @@ void fsl_otg_start_pulse(void)
fsl_otg_loc_conn(1);
#endif
- fsl_otg_add_timer(b_data_pulse_tmr);
+ fsl_otg_add_timer(fsm, b_data_pulse_tmr);
}
void b_data_pulse_end(unsigned long foo)
@@ -252,14 +251,14 @@ void b_data_pulse_end(unsigned long foo)
void fsl_otg_pulse_vbus(void)
{
srp_wait_done = 0;
- fsl_otg_chrg_vbus(1);
+ fsl_otg_chrg_vbus(&fsl_otg_dev->fsm, 1);
/* start the timer to end vbus charge */
- fsl_otg_add_timer(b_vbus_pulse_tmr);
+ fsl_otg_add_timer(&fsl_otg_dev->fsm, b_vbus_pulse_tmr);
}
void b_vbus_pulse_end(unsigned long foo)
{
- fsl_otg_chrg_vbus(0);
+ fsl_otg_chrg_vbus(&fsl_otg_dev->fsm, 0);
/*
* As USB3300 using the same a_sess_vld and b_sess_vld voltage
@@ -267,7 +266,7 @@ void b_vbus_pulse_end(unsigned long foo)
* residual voltage of vbus pulsing and A device pull up
*/
fsl_otg_dischrg_vbus(1);
- fsl_otg_add_timer(b_srp_wait_tmr);
+ fsl_otg_add_timer(&fsl_otg_dev->fsm, b_srp_wait_tmr);
}
void b_srp_end(unsigned long foo)
@@ -289,7 +288,7 @@ void a_wait_enum(unsigned long foo)
{
VDBG("a_wait_enum timeout\n");
if (!fsl_otg_dev->phy.otg->host->b_hnp_enable)
- fsl_otg_add_timer(a_wait_enum_tmr);
+ fsl_otg_add_timer(&fsl_otg_dev->fsm, a_wait_enum_tmr);
else
otg_statemachine(&fsl_otg_dev->fsm);
}
@@ -375,8 +374,42 @@ void fsl_otg_uninit_timers(void)
kfree(b_vbus_pulse_tmr);
}
+static struct fsl_otg_timer *fsl_otg_get_timer(enum otg_fsm_timer t)
+{
+ struct fsl_otg_timer *timer;
+
+ /* REVISIT: use array of pointers to timers instead */
+ switch (t) {
+ case A_WAIT_VRISE:
+ timer = a_wait_vrise_tmr;
+ break;
+ case A_WAIT_BCON:
+ timer = a_wait_vrise_tmr;
+ break;
+ case A_AIDL_BDIS:
+ timer = a_wait_vrise_tmr;
+ break;
+ case B_ASE0_BRST:
+ timer = a_wait_vrise_tmr;
+ break;
+ case B_SE0_SRP:
+ timer = a_wait_vrise_tmr;
+ break;
+ case B_SRP_FAIL:
+ timer = a_wait_vrise_tmr;
+ break;
+ case A_WAIT_ENUM:
+ timer = a_wait_vrise_tmr;
+ break;
+ default:
+ timer = NULL;
+ }
+
+ return timer;
+}
+
/* Add timer to timer list */
-void fsl_otg_add_timer(void *gtimer)
+void fsl_otg_add_timer(struct otg_fsm *fsm, void *gtimer)
{
struct fsl_otg_timer *timer = gtimer;
struct fsl_otg_timer *tmp_timer;
@@ -394,8 +427,19 @@ void fsl_otg_add_timer(void *gtimer)
list_add_tail(&timer->list, &active_timers);
}
+static void fsl_otg_fsm_add_timer(struct otg_fsm *fsm, enum otg_fsm_timer t)
+{
+ struct fsl_otg_timer *timer;
+
+ timer = fsl_otg_get_timer(t);
+ if (!timer)
+ return;
+
+ fsl_otg_add_timer(fsm, timer);
+}
+
/* Remove timer from the timer list; clear timeout status */
-void fsl_otg_del_timer(void *gtimer)
+void fsl_otg_del_timer(struct otg_fsm *fsm, void *gtimer)
{
struct fsl_otg_timer *timer = gtimer;
struct fsl_otg_timer *tmp_timer, *del_tmp;
@@ -405,6 +449,17 @@ void fsl_otg_del_timer(void *gtimer)
list_del(&timer->list);
}
+static void fsl_otg_fsm_del_timer(struct otg_fsm *fsm, enum otg_fsm_timer t)
+{
+ struct fsl_otg_timer *timer;
+
+ timer = fsl_otg_get_timer(t);
+ if (!timer)
+ return;
+
+ fsl_otg_del_timer(fsm, timer);
+}
+
/*
* Reduce timer count by 1, and find timeout conditions.
* Called by fsl_otg 1ms timer interrupt
@@ -468,7 +523,7 @@ int fsl_otg_start_host(struct otg_fsm *fsm, int on)
retval = dev->driver->pm->resume(dev);
if (fsm->id) {
/* default-b */
- fsl_otg_drv_vbus(1);
+ fsl_otg_drv_vbus(fsm, 1);
/*
* Workaround: b_host can't driver
* vbus, but PP in PORTSC needs to
@@ -493,7 +548,7 @@ int fsl_otg_start_host(struct otg_fsm *fsm, int on)
retval = dev->driver->pm->suspend(dev);
if (fsm->id)
/* default-b */
- fsl_otg_drv_vbus(0);
+ fsl_otg_drv_vbus(fsm, 0);
}
otg_dev->host_working = 0;
}
@@ -757,8 +812,8 @@ static struct otg_fsm_ops fsl_otg_ops = {
.loc_sof = fsl_otg_loc_sof,
.start_pulse = fsl_otg_start_pulse,
- .add_timer = fsl_otg_add_timer,
- .del_timer = fsl_otg_del_timer,
+ .add_timer = fsl_otg_fsm_add_timer,
+ .del_timer = fsl_otg_fsm_del_timer,
.start_host = fsl_otg_start_host,
.start_gadget = fsl_otg_start_gadget,
@@ -792,7 +847,7 @@ static int fsl_otg_conf(struct platform_device *pdev)
pr_info("Couldn't init OTG timers\n");
goto err;
}
- spin_lock_init(&fsl_otg_tc->fsm.lock);
+ mutex_init(&fsl_otg_tc->fsm.lock);
/* Set OTG state machine operations */
fsl_otg_tc->fsm.ops = &fsl_otg_ops;
@@ -961,10 +1016,9 @@ static int show_fsl_usb2_otg_state(struct device *dev,
struct otg_fsm *fsm = &fsl_otg_dev->fsm;
char *next = buf;
unsigned size = PAGE_SIZE;
- unsigned long flags;
int t;
- spin_lock_irqsave(&fsm->lock, flags);
+ mutex_lock(&fsm->lock);
/* basic driver infomation */
t = scnprintf(next, size,
@@ -1011,7 +1065,7 @@ static int show_fsl_usb2_otg_state(struct device *dev,
"b_bus_suspend: %d\n"
"b_conn: %d\n"
"b_se0_srp: %d\n"
- "b_sess_end: %d\n"
+ "b_ssend_srp: %d\n"
"b_sess_vld: %d\n"
"id: %d\n",
fsm->a_bus_req,
@@ -1026,13 +1080,13 @@ static int show_fsl_usb2_otg_state(struct device *dev,
fsm->b_bus_suspend,
fsm->b_conn,
fsm->b_se0_srp,
- fsm->b_sess_end,
+ fsm->b_ssend_srp,
fsm->b_sess_vld,
fsm->id);
size -= t;
next += t;
- spin_unlock_irqrestore(&fsm->lock, flags);
+ mutex_unlock(&fsm->lock);
return PAGE_SIZE - size;
}
@@ -1057,7 +1111,7 @@ static long fsl_otg_ioctl(struct file *file, unsigned int cmd,
break;
case SET_A_SUSPEND_REQ:
- fsl_otg_dev->fsm.a_suspend_req = arg;
+ fsl_otg_dev->fsm.a_suspend_req_inf = arg;
break;
case SET_A_BUS_DROP:
generated by cgit v1.2.3-70-g09d2 (git 2.46.0) at 2025-11-10 12:13:13 +0000