Add the rt linux 4.1.3-rt3 as base

[kvmfornfv.git] / kernel / drivers / usb / renesas_usbhs / fifo.h

diff --git a/kernel/drivers/usb/renesas_usbhs/fifo.h b/kernel/drivers/usb/renesas_usbhs/fifo.h
new file mode 100644 (file)
index 0000000..04d3f8a
--- /dev/null
+++ b/kernel/drivers/usb/renesas_usbhs/fifo.h
@@ -0,0 +1,109 @@
+/*
+ * 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_FIFO_H
+#define RENESAS_USB_FIFO_H
+
+#include <linux/interrupt.h>
+#include <linux/sh_dma.h>
+#include <linux/workqueue.h>
+#include <asm/dma.h>
+#include "pipe.h"
+
+struct usbhs_fifo {
+       char *name;
+       u32 port;       /* xFIFO */
+       u32 sel;        /* xFIFOSEL */
+       u32 ctr;        /* xFIFOCTR */
+
+       struct usbhs_pipe       *pipe;
+
+       struct dma_chan         *tx_chan;
+       struct dma_chan         *rx_chan;
+
+       struct sh_dmae_slave    tx_slave;
+       struct sh_dmae_slave    rx_slave;
+};
+
+#define USBHS_MAX_NUM_DFIFO    4
+struct usbhs_fifo_info {
+       struct usbhs_fifo cfifo;
+       struct usbhs_fifo dfifo[USBHS_MAX_NUM_DFIFO];
+};
+#define usbhsf_get_dnfifo(p, n)        (&((p)->fifo_info.dfifo[n]))
+#define usbhs_for_each_dfifo(priv, dfifo, i)                           \
+       for ((i) = 0, dfifo = usbhsf_get_dnfifo(priv, (i));             \
+            ((i) < USBHS_MAX_NUM_DFIFO);                               \
+            (i)++, dfifo = usbhsf_get_dnfifo(priv, (i)))
+
+struct usbhs_pkt_handle;
+struct usbhs_pkt {
+       struct list_head node;
+       struct usbhs_pipe *pipe;
+       struct usbhs_pkt_handle *handler;
+       void (*done)(struct usbhs_priv *priv,
+                    struct usbhs_pkt *pkt);
+       struct work_struct work;
+       dma_addr_t dma;
+       dma_cookie_t cookie;
+       void *buf;
+       int length;
+       int trans;
+       int actual;
+       int zero;
+       int sequence;
+};
+
+struct usbhs_pkt_handle {
+       int (*prepare)(struct usbhs_pkt *pkt, int *is_done);
+       int (*try_run)(struct usbhs_pkt *pkt, int *is_done);
+       int (*dma_done)(struct usbhs_pkt *pkt, int *is_done);
+};
+
+/*
+ * fifo
+ */
+int usbhs_fifo_probe(struct usbhs_priv *priv);
+void usbhs_fifo_remove(struct usbhs_priv *priv);
+void usbhs_fifo_init(struct usbhs_priv *priv);
+void usbhs_fifo_quit(struct usbhs_priv *priv);
+void usbhs_fifo_clear_dcp(struct usbhs_pipe *pipe);
+
+/*
+ * packet info
+ */
+extern struct usbhs_pkt_handle usbhs_fifo_pio_push_handler;
+extern struct usbhs_pkt_handle usbhs_fifo_pio_pop_handler;
+extern struct usbhs_pkt_handle usbhs_ctrl_stage_end_handler;
+
+extern struct usbhs_pkt_handle usbhs_fifo_dma_push_handler;
+extern struct usbhs_pkt_handle usbhs_fifo_dma_pop_handler;
+
+extern struct usbhs_pkt_handle usbhs_dcp_status_stage_in_handler;
+extern struct usbhs_pkt_handle usbhs_dcp_status_stage_out_handler;
+
+extern struct usbhs_pkt_handle usbhs_dcp_data_stage_in_handler;
+extern struct usbhs_pkt_handle usbhs_dcp_data_stage_out_handler;
+
+void usbhs_pkt_init(struct usbhs_pkt *pkt);
+void usbhs_pkt_push(struct usbhs_pipe *pipe, struct usbhs_pkt *pkt,
+                   void (*done)(struct usbhs_priv *priv,
+                                struct usbhs_pkt *pkt),
+                   void *buf, int len, int zero, int sequence);
+struct usbhs_pkt *usbhs_pkt_pop(struct usbhs_pipe *pipe, struct usbhs_pkt *pkt);
+void usbhs_pkt_start(struct usbhs_pipe *pipe);
+
+#endif /* RENESAS_USB_FIFO_H */