Merge branch 'spi/next' of git://git.secretlab.ca/git/linux-2.6
[pandora-kernel.git] / drivers / usb / renesas_usbhs / pipe.h
1 /*
2  * Renesas USB driver
3  *
4  * Copyright (C) 2011 Renesas Solutions Corp.
5  * Kuninori Morimoto <kuninori.morimoto.gx@renesas.com>
6  *
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.
11  *
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
15  *
16  */
17 #ifndef RENESAS_USB_PIPE_H
18 #define RENESAS_USB_PIPE_H
19
20 #include "./common.h"
21
22 /*
23  *      struct
24  */
25 struct usbhs_pipe {
26         u32 pipe_type;  /* USB_ENDPOINT_XFER_xxx */
27
28         struct usbhs_priv *priv;
29
30         u32 flags;
31 #define USBHS_PIPE_FLAGS_IS_USED                (1 << 0)
32 #define USBHS_PIPE_FLAGS_IS_DIR_IN              (1 << 1)
33
34         void *mod_private;
35 };
36
37 struct usbhs_pipe_info {
38         struct usbhs_pipe *pipe;
39         int size;       /* array size of "pipe" */
40         int bufnmb_last;        /* FIXME : driver needs good allocator */
41 };
42
43 /*
44  * pipe list
45  */
46 #define __usbhs_for_each_pipe(start, pos, info, i)      \
47         for (i = start, pos = (info)->pipe;             \
48              i < (info)->size;                          \
49              i++, pos = (info)->pipe + i)
50
51 #define usbhs_for_each_pipe(pos, priv, i)                       \
52         __usbhs_for_each_pipe(1, pos, &((priv)->pipe_info), i)
53
54 #define usbhs_for_each_pipe_with_dcp(pos, priv, i)              \
55         __usbhs_for_each_pipe(0, pos, &((priv)->pipe_info), i)
56
57 /*
58  * pipe module probe / remove
59  */
60 int usbhs_pipe_probe(struct usbhs_priv *priv);
61 void usbhs_pipe_remove(struct usbhs_priv *priv);
62
63 /*
64  * cfifo
65  */
66 int usbhs_fifo_write(struct usbhs_pipe *pipe, u8 *buf, int len);
67 int usbhs_fifo_read(struct usbhs_pipe *pipe, u8 *buf, int len);
68 int usbhs_fifo_prepare_write(struct usbhs_pipe *pipe);
69 int usbhs_fifo_prepare_read(struct usbhs_pipe *pipe);
70
71 void usbhs_fifo_enable(struct usbhs_pipe *pipe);
72 void usbhs_fifo_disable(struct usbhs_pipe *pipe);
73 void usbhs_fifo_stall(struct usbhs_pipe *pipe);
74
75 void usbhs_fifo_send_terminator(struct usbhs_pipe *pipe);
76
77
78 /*
79  * usb request
80  */
81 void usbhs_usbreq_get_val(struct usbhs_priv *priv, struct usb_ctrlrequest *req);
82 void usbhs_usbreq_set_val(struct usbhs_priv *priv, struct usb_ctrlrequest *req);
83
84 /*
85  * pipe control
86  */
87 struct usbhs_pipe
88 *usbhs_pipe_malloc(struct usbhs_priv *priv,
89                    const struct usb_endpoint_descriptor *desc);
90
91 int usbhs_pipe_is_dir_in(struct usbhs_pipe *pipe);
92 void usbhs_pipe_init(struct usbhs_priv *priv);
93 int usbhs_pipe_get_maxpacket(struct usbhs_pipe *pipe);
94 void usbhs_pipe_clear_sequence(struct usbhs_pipe *pipe);
95
96 #define usbhs_pipe_number(p)    (int)((p) - (p)->priv->pipe_info.pipe)
97
98 /*
99  * dcp control
100  */
101 struct usbhs_pipe *usbhs_dcp_malloc(struct usbhs_priv *priv);
102 void usbhs_dcp_control_transfer_done(struct usbhs_pipe *pipe);
103
104 #endif /* RENESAS_USB_PIPE_H */