usb: renesas_usbhs: Add Renesas USBHS common code
Renesas SuperH has USBHS IP which can switch Host / Function.
This driver is designed so that Host / Function may dynamically change.
This patch add usb/renesas_usbhs and common code for SuperH USBHS.
Signed-off-by: Kuninori Morimoto <kuninori.morimoto.gx@renesas.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
diff --git a/drivers/usb/renesas_usbhs/mod.h b/drivers/usb/renesas_usbhs/mod.h
new file mode 100644
index 0000000..bd873d5
--- /dev/null
+++ b/drivers/usb/renesas_usbhs/mod.h
@@ -0,0 +1,106 @@
+/*
+ * Renesas USB driver
+ *
+ * Copyright (C) 2011 Renesas Solutions Corp.
+ * Kuninori Morimoto <kuninori.morimoto.gx@renesas.com>
+ *
+ * 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., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA
+ *
+ */
+#ifndef RENESAS_USB_MOD_H
+#define RENESAS_USB_MOD_H
+
+#include <linux/spinlock.h>
+#include <linux/usb/renesas_usbhs.h>
+#include "./common.h"
+
+/*
+ * struct
+ */
+struct usbhs_irq_state {
+ u16 intsts0;
+ u16 intsts1;
+ u16 brdysts;
+ u16 nrdysts;
+ u16 bempsts;
+ u16 dvstctr;
+};
+
+struct usbhs_mod {
+ char *name;
+
+ /*
+ * entry point from common.c
+ */
+ int (*start)(struct usbhs_priv *priv);
+ int (*stop)(struct usbhs_priv *priv);
+
+ /* INTSTS0 :: DVST (DVSQ) */
+ int (*irq_dev_state)(struct usbhs_priv *priv,
+ struct usbhs_irq_state *irq_state);
+
+ /* INTSTS0 :: CTRT (CTSQ) */
+ int (*irq_ctrl_stage)(struct usbhs_priv *priv,
+ struct usbhs_irq_state *irq_state);
+
+ /* INTSTS0 :: BEMP */
+ /* BEMPSTS */
+ int (*irq_empty)(struct usbhs_priv *priv,
+ struct usbhs_irq_state *irq_state);
+ u16 irq_bempsts;
+
+ /* INTSTS0 :: BRDY */
+ /* BRDYSTS */
+ int (*irq_ready)(struct usbhs_priv *priv,
+ struct usbhs_irq_state *irq_state);
+ u16 irq_brdysts;
+
+ struct usbhs_priv *priv;
+};
+
+struct usbhs_mod_info {
+ struct usbhs_mod *mod[USBHS_MAX];
+ struct usbhs_mod *curt; /* current mod */
+};
+
+/*
+ * for host/gadget module
+ */
+struct usbhs_mod *usbhs_mod_get(struct usbhs_priv *priv, int id);
+struct usbhs_mod *usbhs_mod_get_current(struct usbhs_priv *priv);
+void usbhs_mod_register(struct usbhs_priv *priv, struct usbhs_mod *usb, int id);
+int usbhs_mod_is_host(struct usbhs_priv *priv, struct usbhs_mod *mod);
+int usbhs_mod_change(struct usbhs_priv *priv, int id);
+int usbhs_mod_probe(struct usbhs_priv *priv);
+void usbhs_mod_remove(struct usbhs_priv *priv);
+
+/*
+ * status functions
+ */
+int usbhs_status_get_usb_speed(struct usbhs_irq_state *irq_state);
+int usbhs_status_get_device_state(struct usbhs_irq_state *irq_state);
+int usbhs_status_get_ctrl_stage(struct usbhs_irq_state *irq_state);
+
+/*
+ * callback functions
+ */
+void usbhs_irq_callback_update(struct usbhs_priv *priv, struct usbhs_mod *mod);
+
+
+#define usbhs_mod_call(priv, func, param...) \
+ ({ \
+ struct usbhs_mod *mod; \
+ mod = usbhs_mod_get_current(priv); \
+ !mod ? -ENODEV : \
+ !mod->func ? 0 : \
+ mod->func(param); \
+ })
+
+#endif /* RENESAS_USB_MOD_H */