20e3cf46f70cd5975581db3c432625a2755b9b12
[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 #include "./fifo.h"
22
23 /*
24  *      struct
25  */
26 struct usbhs_pipe {
27         u32 pipe_type;  /* USB_ENDPOINT_XFER_xxx */
28
29         struct usbhs_priv *priv;
30         struct list_head list;
31
32         u32 flags;
33 #define USBHS_PIPE_FLAGS_IS_USED                (1 << 0)
34 #define USBHS_PIPE_FLAGS_IS_DIR_IN              (1 << 1)
35 #define USBHS_PIPE_FLAGS_IS_DIR_HOST            (1 << 2)
36
37         void *mod_private;
38 };
39
40 struct usbhs_pipe_info {
41         struct usbhs_pipe *pipe;
42         int size;       /* array size of "pipe" */
43         int bufnmb_last;        /* FIXME : driver needs good allocator */
44
45         void (*done)(struct usbhs_pkt *pkt);
46 };
47
48 /*
49  * pipe list
50  */
51 #define __usbhs_for_each_pipe(start, pos, info, i)      \
52         for (i = start, pos = (info)->pipe;             \
53              i < (info)->size;                          \
54              i++, pos = (info)->pipe + i)
55
56 #define usbhs_for_each_pipe(pos, priv, i)                       \
57         __usbhs_for_each_pipe(1, pos, &((priv)->pipe_info), i)
58
59 #define usbhs_for_each_pipe_with_dcp(pos, priv, i)              \
60         __usbhs_for_each_pipe(0, pos, &((priv)->pipe_info), i)
61
62 /*
63  * data
64  */
65 #define usbhs_priv_to_pipeinfo(pr)      (&(pr)->pipe_info)
66
67 /*
68  * usb request
69  */
70 void usbhs_usbreq_get_val(struct usbhs_priv *priv, struct usb_ctrlrequest *req);
71 void usbhs_usbreq_set_val(struct usbhs_priv *priv, struct usb_ctrlrequest *req);
72
73 /*
74  * pipe control
75  */
76 struct usbhs_pipe
77 *usbhs_pipe_malloc(struct usbhs_priv *priv,
78                    const struct usb_endpoint_descriptor *desc);
79 int usbhs_pipe_probe(struct usbhs_priv *priv);
80 void usbhs_pipe_remove(struct usbhs_priv *priv);
81 int usbhs_pipe_is_dir_in(struct usbhs_pipe *pipe);
82 int usbhs_pipe_is_dir_host(struct usbhs_pipe *pipe);
83 void usbhs_pipe_init(struct usbhs_priv *priv,
84                      void (*done)(struct usbhs_pkt *pkt));
85 int usbhs_pipe_get_maxpacket(struct usbhs_pipe *pipe);
86 void usbhs_pipe_clear_sequence(struct usbhs_pipe *pipe);
87 int usbhs_pipe_is_accessible(struct usbhs_pipe *pipe);
88 void usbhs_pipe_enable(struct usbhs_pipe *pipe);
89 void usbhs_pipe_disable(struct usbhs_pipe *pipe);
90 void usbhs_pipe_stall(struct usbhs_pipe *pipe);
91
92 #define usbhs_pipe_to_priv(p)   ((p)->priv)
93 #define usbhs_pipe_number(p)    (int)((p) - (p)->priv->pipe_info.pipe)
94 #define usbhs_pipe_is_dcp(p)    ((p)->priv->pipe_info.pipe == (p))
95
96 /*
97  * dcp control
98  */
99 struct usbhs_pipe *usbhs_dcp_malloc(struct usbhs_priv *priv);
100 void usbhs_dcp_control_transfer_done(struct usbhs_pipe *pipe);
101
102 #endif /* RENESAS_USB_PIPE_H */