usb: renesas_usbhs: modify data transfer interrupt

On current driver, overall data transfer method was implemented in fifo.c,
but its interrupt which is member of packet queue control
was still in mod_gadget.c.
This patch move it into fifo.c.
By this patch, the packet/fifo control is independent from mod_gadget.

Signed-off-by: Kuninori Morimoto <kuninori.morimoto.gx@renesas.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>

1 files changed, 17 insertions, 4 deletions

diff --git a/drivers/usb/renesas_usbhs/fifo.h b/drivers/usb/renesas_usbhs/fifo.h
index 04d8cddaf812..eab3258e9834 100644
--- a/drivers/usb/renesas_usbhs/fifo.h
+++ b/drivers/usb/renesas_usbhs/fifo.h
@@ -19,30 +19,43 @@
 
 #include "pipe.h"
 
+struct usbhs_pkt_handle;
 struct usbhs_pkt {
         struct list_head node;
         struct usbhs_pipe *pipe;
+        struct usbhs_pkt_handle *handler;
         void *buf;
         int length;
         int actual;
         int zero;
 };
 
+struct usbhs_pkt_handle {
+        int (*prepare)(struct usbhs_pkt *pkt);
+        int (*try_run)(struct usbhs_pkt *pkt);
+};
+
 /*
  * fifo
  */
-int usbhs_fifo_write(struct usbhs_pkt *pkt);
-int usbhs_fifo_read(struct usbhs_pkt *pkt);
-int usbhs_fifo_prepare_write(struct usbhs_pipe *pipe);
-int usbhs_fifo_prepare_read(struct usbhs_pipe *pipe);
+void usbhs_fifo_init(struct usbhs_priv *priv);
+void usbhs_fifo_quit(struct usbhs_priv *priv);
 
 /*
  * packet info
  */
+extern struct usbhs_pkt_handle usbhs_fifo_push_handler;
+extern struct usbhs_pkt_handle usbhs_fifo_pop_handler;
+extern struct usbhs_pkt_handle usbhs_ctrl_stage_end_handler;
+
 void usbhs_pkt_init(struct usbhs_pkt *pkt);
 void usbhs_pkt_push(struct usbhs_pipe *pipe, struct usbhs_pkt *pkt,
+                    struct usbhs_pkt_handle *handler,
                     void *buf, int len, int zero);
 void usbhs_pkt_pop(struct usbhs_pkt *pkt);
 struct usbhs_pkt *usbhs_pkt_get(struct usbhs_pipe *pipe);
 
+#define usbhs_pkt_start(p)      ((p)->handler->prepare(p))
+#define usbhs_pkt_run(p)        ((p)->handler->try_run(p))
+
 #endif /* RENESAS_USB_FIFO_H */