Other USB drivers may want to use OTG final state machine
implementation, so make this header available for them.
Signed-off-by: Anton Tikhomirov <av.tikhomirov@xxxxxxxxxxx>
---
drivers/usb/phy/phy-fsl-usb.h | 1 -
drivers/usb/phy/phy-fsm-usb.c | 2 -
drivers/usb/phy/phy-fsm-usb.h | 236 -----------------------------------------
include/linux/usb/otg.h | 1 +
include/linux/usb/otg_fsm.h | 236 +++++++++++++++++++++++++++++++++++++++++
5 files changed, 237 insertions(+), 239 deletions(-)
delete mode 100644 drivers/usb/phy/phy-fsm-usb.h
create mode 100644 include/linux/usb/otg_fsm.h
diff --git a/drivers/usb/phy/phy-fsl-usb.h b/drivers/usb/phy/phy-fsl-usb.h
index 7365170..b8589c5 100644
--- a/drivers/usb/phy/phy-fsl-usb.h
+++ b/drivers/usb/phy/phy-fsl-usb.h
@@ -15,7 +15,6 @@
* 675 Mass Ave, Cambridge, MA 02139, USA.
*/
-#include "phy-fsm-usb.h"
#include <linux/usb/otg.h>
#include <linux/ioctl.h>
diff --git a/drivers/usb/phy/phy-fsm-usb.c b/drivers/usb/phy/phy-fsm-usb.c
index 2817b04..e72dbee 100644
--- a/drivers/usb/phy/phy-fsm-usb.c
+++ b/drivers/usb/phy/phy-fsm-usb.c
@@ -29,8 +29,6 @@
#include <linux/usb/gadget.h>
#include <linux/usb/otg.h>
-#include "phy-fsm-usb.h"
-
/* Change USB protocol when there is a protocol change */
static int otg_set_protocol(struct otg_fsm *fsm, int protocol)
{
diff --git a/drivers/usb/phy/phy-fsm-usb.h b/drivers/usb/phy/phy-fsm-usb.h
deleted file mode 100644
index 12ece58..0000000
--- a/drivers/usb/phy/phy-fsm-usb.h
+++ /dev/null
@@ -1,236 +0,0 @@
-/* Copyright (C) 2007,2008 Freescale Semiconductor, Inc.
- *
- * This program is free software; you can redistribute it and/or modify it
- * under the terms of the GNU General Public License as published by the
- * Free Software Foundation; either version 2 of the License, or (at your
- * option) any later version.
- *
- * This program is distributed in the hope that it will be useful, but
- * WITHOUT ANY WARRANTY; without even the implied warranty of
- * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
- * General Public License for more details.
- *
- * You should have received a copy of the GNU General Public License along
- * with this program; if not, write to the Free Software Foundation, Inc.,
- * 675 Mass Ave, Cambridge, MA 02139, USA.
- */
-
-#undef VERBOSE
-
-#ifdef VERBOSE
-#define VDBG(fmt, args...) pr_debug("[%s] " fmt , \
- __func__, ## args)
-#else
-#define VDBG(stuff...) do {} while (0)
-#endif
-
-#ifdef VERBOSE
-#define MPC_LOC printk("Current Location [%s]:[%d]\n", __FILE__, __LINE__)
-#else
-#define MPC_LOC do {} while (0)
-#endif
-
-#define PROTO_UNDEF (0)
-#define PROTO_HOST (1)
-#define PROTO_GADGET (2)
-
-enum otg_fsm_timer {
- /* Standard OTG timers */
- A_WAIT_VRISE,
- A_WAIT_VFALL,
- A_WAIT_BCON,
- A_AIDL_BDIS,
- B_ASE0_BRST,
- A_BIDL_ADIS,
-
- /* Auxiliary timers */
- B_SE0_SRP,
- B_SRP_FAIL,
- A_WAIT_ENUM,
-
- NUM_OTG_FSM_TIMERS,
-};
-
-/* OTG state machine according to the OTG spec */
-struct otg_fsm {
- /* Input */
- int id;
- int adp_change;
- int power_up;
- int test_device;
- int a_bus_drop;
- int a_bus_req;
- int a_srp_det;
- int a_vbus_vld;
- int b_conn;
- int a_bus_resume;
- int a_bus_suspend;
- int a_conn;
- int b_bus_req;
- int b_se0_srp;
- int b_ssend_srp;
- int b_sess_vld;
- /* Auxilary inputs */
- int a_sess_vld;
- int b_bus_resume;
- int b_bus_suspend;
-
- /* Output */
- int data_pulse;
- int drv_vbus;
- int loc_conn;
- int loc_sof;
- int adp_prb;
- int adp_sns;
-
- /* Internal variables */
- int a_set_b_hnp_en;
- int b_srp_done;
- int b_hnp_enable;
- int a_clr_err;
-
- /* Informative variables */
- int a_bus_drop_inf;
- int a_bus_req_inf;
- int a_clr_err_inf;
- int b_bus_req_inf;
- /* Auxilary informative variables */
- int a_suspend_req_inf;
-
- /* Timeout indicator for timers */
- int a_wait_vrise_tmout;
- int a_wait_vfall_tmout;
- int a_wait_bcon_tmout;
- int a_aidl_bdis_tmout;
- int b_ase0_brst_tmout;
- int a_bidl_adis_tmout;
-
- struct otg_fsm_ops *ops;
- struct usb_otg *otg;
-
- /* Current usb protocol used: 0:undefine; 1:host; 2:client */
- int protocol;
- struct mutex lock;
-};
-
-struct otg_fsm_ops {
- void (*chrg_vbus)(struct otg_fsm *fsm, int on);
- void (*drv_vbus)(struct otg_fsm *fsm, int on);
- void (*loc_conn)(struct otg_fsm *fsm, int on);
- void (*loc_sof)(struct otg_fsm *fsm, int on);
- void (*start_pulse)(struct otg_fsm *fsm);
- void (*start_adp_prb)(struct otg_fsm *fsm);
- void (*start_adp_sns)(struct otg_fsm *fsm);
- void (*add_timer)(struct otg_fsm *fsm, enum otg_fsm_timer timer);
- void (*del_timer)(struct otg_fsm *fsm, enum otg_fsm_timer timer);
- int (*start_host)(struct otg_fsm *fsm, int on);
- int (*start_gadget)(struct otg_fsm *fsm, int on);
-};
-
-
-static inline int otg_chrg_vbus(struct otg_fsm *fsm, int on)
-{
- if (!fsm->ops->chrg_vbus)
- return -EOPNOTSUPP;
- fsm->ops->chrg_vbus(fsm, on);
- return 0;
-}
-
-static inline int otg_drv_vbus(struct otg_fsm *fsm, int on)
-{
- if (!fsm->ops->drv_vbus)
- return -EOPNOTSUPP;
- if (fsm->drv_vbus != on) {
- fsm->drv_vbus = on;
- fsm->ops->drv_vbus(fsm, on);
- }
- return 0;
-}
-
-static inline int otg_loc_conn(struct otg_fsm *fsm, int on)
-{
- if (!fsm->ops->loc_conn)
- return -EOPNOTSUPP;
- if (fsm->loc_conn != on) {
- fsm->loc_conn = on;
- fsm->ops->loc_conn(fsm, on);
- }
- return 0;
-}
-
-static inline int otg_loc_sof(struct otg_fsm *fsm, int on)
-{
- if (!fsm->ops->loc_sof)
- return -EOPNOTSUPP;
- if (fsm->loc_sof != on) {
- fsm->loc_sof = on;
- fsm->ops->loc_sof(fsm, on);
- }
- return 0;
-}
-
-static inline int otg_start_pulse(struct otg_fsm *fsm)
-{
- if (!fsm->ops->start_pulse)
- return -EOPNOTSUPP;
- if (!fsm->data_pulse) {
- fsm->data_pulse = 1;
- fsm->ops->start_pulse(fsm);
- }
- return 0;
-}
-
-static inline int otg_start_adp_prb(struct otg_fsm *fsm)
-{
- if (!fsm->ops->start_adp_prb)
- return -EOPNOTSUPP;
- if (!fsm->adp_prb) {
- fsm->adp_sns = 0;
- fsm->adp_prb = 1;
- fsm->ops->start_adp_prb(fsm);
- }
- return 0;
-}
-
-static inline int otg_start_adp_sns(struct otg_fsm *fsm)
-{
- if (!fsm->ops->start_adp_sns)
- return -EOPNOTSUPP;
- if (!fsm->adp_sns) {
- fsm->adp_sns = 1;
- fsm->ops->start_adp_sns(fsm);
- }
- return 0;
-}
-
-static inline int otg_add_timer(struct otg_fsm *fsm, enum otg_fsm_timer timer)
-{
- if (!fsm->ops->add_timer)
- return -EOPNOTSUPP;
- fsm->ops->add_timer(fsm, timer);
- return 0;
-}
-
-static inline int otg_del_timer(struct otg_fsm *fsm, enum otg_fsm_timer timer)
-{
- if (!fsm->ops->del_timer)
- return -EOPNOTSUPP;
- fsm->ops->del_timer(fsm, timer);
- return 0;
-}
-
-static inline int otg_start_host(struct otg_fsm *fsm, int on)
-{
- if (!fsm->ops->start_host)
- return -EOPNOTSUPP;
- return fsm->ops->start_host(fsm, on);
-}
-
-static inline int otg_start_gadget(struct otg_fsm *fsm, int on)
-{
- if (!fsm->ops->start_gadget)
- return -EOPNOTSUPP;
- return fsm->ops->start_gadget(fsm, on);
-}
-
-int otg_statemachine(struct otg_fsm *fsm);
diff --git a/include/linux/usb/otg.h b/include/linux/usb/otg.h
index 154332b..ba02706 100644
--- a/include/linux/usb/otg.h
+++ b/include/linux/usb/otg.h
@@ -9,6 +9,7 @@
#ifndef __LINUX_USB_OTG_H
#define __LINUX_USB_OTG_H
+#include <linux/usb/otg_fsm.h>
#include <linux/usb/phy.h>
struct usb_otg {
diff --git a/include/linux/usb/otg_fsm.h b/include/linux/usb/otg_fsm.h
new file mode 100644
index 0000000..12ece58
--- /dev/null
+++ b/include/linux/usb/otg_fsm.h
@@ -0,0 +1,236 @@
+/* Copyright (C) 2007,2008 Freescale Semiconductor, Inc.
+ *
+ * This program is free software; you can redistribute it and/or modify it
+ * under the terms of the GNU General Public License as published by the
+ * Free Software Foundation; either version 2 of the License, or (at your
+ * option) any later version.
+ *
+ * This program is distributed in the hope that it will be useful, but
+ * WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
+ * General Public License for more details.
+ *
+ * You should have received a copy of the GNU General Public License along
+ * with this program; if not, write to the Free Software Foundation, Inc.,
+ * 675 Mass Ave, Cambridge, MA 02139, USA.
+ */
+
+#undef VERBOSE
+
+#ifdef VERBOSE
+#define VDBG(fmt, args...) pr_debug("[%s] " fmt , \
+ __func__, ## args)
+#else
+#define VDBG(stuff...) do {} while (0)
+#endif
+
+#ifdef VERBOSE
+#define MPC_LOC printk("Current Location [%s]:[%d]\n", __FILE__, __LINE__)
+#else
+#define MPC_LOC do {} while (0)
+#endif
+
+#define PROTO_UNDEF (0)
+#define PROTO_HOST (1)
+#define PROTO_GADGET (2)
+
+enum otg_fsm_timer {
+ /* Standard OTG timers */
+ A_WAIT_VRISE,
+ A_WAIT_VFALL,
+ A_WAIT_BCON,
+ A_AIDL_BDIS,
+ B_ASE0_BRST,
+ A_BIDL_ADIS,
+
+ /* Auxiliary timers */
+ B_SE0_SRP,
+ B_SRP_FAIL,
+ A_WAIT_ENUM,
+
+ NUM_OTG_FSM_TIMERS,
+};
+
+/* OTG state machine according to the OTG spec */
+struct otg_fsm {
+ /* Input */
+ int id;
+ int adp_change;
+ int power_up;
+ int test_device;
+ int a_bus_drop;
+ int a_bus_req;
+ int a_srp_det;
+ int a_vbus_vld;
+ int b_conn;
+ int a_bus_resume;
+ int a_bus_suspend;
+ int a_conn;
+ int b_bus_req;
+ int b_se0_srp;
+ int b_ssend_srp;
+ int b_sess_vld;
+ /* Auxilary inputs */
+ int a_sess_vld;
+ int b_bus_resume;
+ int b_bus_suspend;
+
+ /* Output */
+ int data_pulse;
+ int drv_vbus;
+ int loc_conn;
+ int loc_sof;
+ int adp_prb;
+ int adp_sns;
+
+ /* Internal variables */
+ int a_set_b_hnp_en;
+ int b_srp_done;
+ int b_hnp_enable;
+ int a_clr_err;
+
+ /* Informative variables */
+ int a_bus_drop_inf;
+ int a_bus_req_inf;
+ int a_clr_err_inf;
+ int b_bus_req_inf;
+ /* Auxilary informative variables */
+ int a_suspend_req_inf;
+
+ /* Timeout indicator for timers */
+ int a_wait_vrise_tmout;
+ int a_wait_vfall_tmout;
+ int a_wait_bcon_tmout;
+ int a_aidl_bdis_tmout;
+ int b_ase0_brst_tmout;
+ int a_bidl_adis_tmout;
+
+ struct otg_fsm_ops *ops;
+ struct usb_otg *otg;
+
+ /* Current usb protocol used: 0:undefine; 1:host; 2:client */
+ int protocol;
+ struct mutex lock;
+};
+
+struct otg_fsm_ops {
+ void (*chrg_vbus)(struct otg_fsm *fsm, int on);
+ void (*drv_vbus)(struct otg_fsm *fsm, int on);
+ void (*loc_conn)(struct otg_fsm *fsm, int on);
+ void (*loc_sof)(struct otg_fsm *fsm, int on);
+ void (*start_pulse)(struct otg_fsm *fsm);
+ void (*start_adp_prb)(struct otg_fsm *fsm);
+ void (*start_adp_sns)(struct otg_fsm *fsm);
+ void (*add_timer)(struct otg_fsm *fsm, enum otg_fsm_timer timer);
+ void (*del_timer)(struct otg_fsm *fsm, enum otg_fsm_timer timer);
+ int (*start_host)(struct otg_fsm *fsm, int on);
+ int (*start_gadget)(struct otg_fsm *fsm, int on);
+};
+
+
+static inline int otg_chrg_vbus(struct otg_fsm *fsm, int on)
+{
+ if (!fsm->ops->chrg_vbus)
+ return -EOPNOTSUPP;
+ fsm->ops->chrg_vbus(fsm, on);
+ return 0;
+}
+
+static inline int otg_drv_vbus(struct otg_fsm *fsm, int on)
+{
+ if (!fsm->ops->drv_vbus)
+ return -EOPNOTSUPP;
+ if (fsm->drv_vbus != on) {
+ fsm->drv_vbus = on;
+ fsm->ops->drv_vbus(fsm, on);
+ }
+ return 0;
+}
+
+static inline int otg_loc_conn(struct otg_fsm *fsm, int on)
+{
+ if (!fsm->ops->loc_conn)
+ return -EOPNOTSUPP;
+ if (fsm->loc_conn != on) {
+ fsm->loc_conn = on;
+ fsm->ops->loc_conn(fsm, on);
+ }
+ return 0;
+}
+
+static inline int otg_loc_sof(struct otg_fsm *fsm, int on)
+{
+ if (!fsm->ops->loc_sof)
+ return -EOPNOTSUPP;
+ if (fsm->loc_sof != on) {
+ fsm->loc_sof = on;
+ fsm->ops->loc_sof(fsm, on);
+ }
+ return 0;
+}
+
+static inline int otg_start_pulse(struct otg_fsm *fsm)
+{
+ if (!fsm->ops->start_pulse)
+ return -EOPNOTSUPP;
+ if (!fsm->data_pulse) {
+ fsm->data_pulse = 1;
+ fsm->ops->start_pulse(fsm);
+ }
+ return 0;
+}
+
+static inline int otg_start_adp_prb(struct otg_fsm *fsm)
+{
+ if (!fsm->ops->start_adp_prb)
+ return -EOPNOTSUPP;
+ if (!fsm->adp_prb) {
+ fsm->adp_sns = 0;
+ fsm->adp_prb = 1;
+ fsm->ops->start_adp_prb(fsm);
+ }
+ return 0;
+}
+
+static inline int otg_start_adp_sns(struct otg_fsm *fsm)
+{
+ if (!fsm->ops->start_adp_sns)
+ return -EOPNOTSUPP;
+ if (!fsm->adp_sns) {
+ fsm->adp_sns = 1;
+ fsm->ops->start_adp_sns(fsm);
+ }
+ return 0;
+}
+
+static inline int otg_add_timer(struct otg_fsm *fsm, enum otg_fsm_timer timer)
+{
+ if (!fsm->ops->add_timer)
+ return -EOPNOTSUPP;
+ fsm->ops->add_timer(fsm, timer);
+ return 0;
+}
+
+static inline int otg_del_timer(struct otg_fsm *fsm, enum otg_fsm_timer timer)
+{
+ if (!fsm->ops->del_timer)
+ return -EOPNOTSUPP;
+ fsm->ops->del_timer(fsm, timer);
+ return 0;
+}
+
+static inline int otg_start_host(struct otg_fsm *fsm, int on)
+{
+ if (!fsm->ops->start_host)
+ return -EOPNOTSUPP;
+ return fsm->ops->start_host(fsm, on);
+}
+
+static inline int otg_start_gadget(struct otg_fsm *fsm, int on)
+{
+ if (!fsm->ops->start_gadget)
+ return -EOPNOTSUPP;
+ return fsm->ops->start_gadget(fsm, on);
+}
+
+int otg_statemachine(struct otg_fsm *fsm);
--
1.7.9.5
--
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