4 * Copyright (C) 2011 Renesas Solutions Corp.
5 * Kuninori Morimoto <kuninori.morimoto.gx@renesas.com>
7 * This program is distributed in the hope that it will be useful,
8 * but WITHOUT ANY WARRANTY; without even the implied warranty of
9 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
10 * GNU General Public License for more details.
12 * You should have received a copy of the GNU General Public License
13 * along with this program; if not, write to the Free Software
14 * Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA
17 #ifndef RENESAS_USB_FIFO_H
18 #define RENESAS_USB_FIFO_H
20 #include <linux/interrupt.h>
21 #include <linux/sh_dma.h>
25 #define DMA_ADDR_INVALID (~(dma_addr_t)0)
30 u32 sel; /* xFIFOSEL */
31 u32 ctr; /* xFIFOCTR */
33 struct usbhs_pipe *pipe;
34 struct tasklet_struct tasklet;
36 struct dma_chan *tx_chan;
37 struct dma_chan *rx_chan;
39 struct sh_dmae_slave tx_slave;
40 struct sh_dmae_slave rx_slave;
43 struct usbhs_fifo_info {
44 struct usbhs_fifo cfifo;
45 struct usbhs_fifo d0fifo;
46 struct usbhs_fifo d1fifo;
49 struct usbhs_pkt_handle;
51 struct list_head node;
52 struct usbhs_pipe *pipe;
53 struct usbhs_pkt_handle *handler;
62 struct usbhs_pkt_handle {
63 int (*prepare)(struct usbhs_pkt *pkt, int *is_done);
64 int (*try_run)(struct usbhs_pkt *pkt, int *is_done);
65 int (*dma_done)(struct usbhs_pkt *pkt, int *is_done);
71 int usbhs_fifo_probe(struct usbhs_priv *priv);
72 void usbhs_fifo_remove(struct usbhs_priv *priv);
73 void usbhs_fifo_init(struct usbhs_priv *priv);
74 void usbhs_fifo_quit(struct usbhs_priv *priv);
79 extern struct usbhs_pkt_handle usbhs_fifo_pio_push_handler;
80 extern struct usbhs_pkt_handle usbhs_fifo_pio_pop_handler;
81 extern struct usbhs_pkt_handle usbhs_ctrl_stage_end_handler;
83 extern struct usbhs_pkt_handle usbhs_fifo_dma_push_handler;
84 extern struct usbhs_pkt_handle usbhs_fifo_dma_pop_handler;
87 void usbhs_pkt_init(struct usbhs_pkt *pkt);
88 void usbhs_pkt_push(struct usbhs_pipe *pipe, struct usbhs_pkt *pkt,
89 void *buf, int len, int zero);
90 struct usbhs_pkt *usbhs_pkt_pop(struct usbhs_pipe *pipe, struct usbhs_pkt *pkt);
91 void usbhs_pkt_start(struct usbhs_pipe *pipe);
93 #endif /* RENESAS_USB_FIFO_H */