usb: renesas_usbhs: Add Renesas USBHS common code
[deliverable/linux.git] / drivers / usb / renesas_usbhs / pipe.h
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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 */
25struct 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
37struct 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 */
60int usbhs_pipe_probe(struct usbhs_priv *priv);
61void usbhs_pipe_remove(struct usbhs_priv *priv);
62
63/*
64 * cfifo
65 */
66int usbhs_fifo_write(struct usbhs_pipe *pipe, u8 *buf, int len);
67int usbhs_fifo_read(struct usbhs_pipe *pipe, u8 *buf, int len);
68int usbhs_fifo_prepare_write(struct usbhs_pipe *pipe);
69int usbhs_fifo_prepare_read(struct usbhs_pipe *pipe);
70
71void usbhs_fifo_enable(struct usbhs_pipe *pipe);
72void usbhs_fifo_disable(struct usbhs_pipe *pipe);
73void usbhs_fifo_stall(struct usbhs_pipe *pipe);
74
75void usbhs_fifo_send_terminator(struct usbhs_pipe *pipe);
76
77
78/*
79 * usb request
80 */
81void usbhs_usbreq_get_val(struct usbhs_priv *priv, struct usb_ctrlrequest *req);
82void usbhs_usbreq_set_val(struct usbhs_priv *priv, struct usb_ctrlrequest *req);
83
84/*
85 * pipe control
86 */
87struct usbhs_pipe
88*usbhs_pipe_malloc(struct usbhs_priv *priv,
89 const struct usb_endpoint_descriptor *desc);
90
91int usbhs_pipe_is_dir_in(struct usbhs_pipe *pipe);
92void usbhs_pipe_init(struct usbhs_priv *priv);
93int usbhs_pipe_get_maxpacket(struct usbhs_pipe *pipe);
94void usbhs_pipe_clear_sequence(struct usbhs_pipe *pipe);
95
96#define usbhs_pipe_number(p) (((u32)(p) - (u32)(p)->priv->pipe_info.pipe) / \
97 sizeof(struct usbhs_pipe))
98
99/*
100 * dcp control
101 */
102struct usbhs_pipe *usbhs_dcp_malloc(struct usbhs_priv *priv);
103void usbhs_dcp_control_transfer_done(struct usbhs_pipe *pipe);
104
105#endif /* RENESAS_USB_PIPE_H */
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