Loading...
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_FIFO_H
18#define RENESAS_USB_FIFO_H
19
20#include <linux/interrupt.h>
21#include <linux/sh_dma.h>
22#include <linux/workqueue.h>
23#include <asm/dma.h>
24#include "pipe.h"
25
26struct usbhs_fifo {
27 char *name;
28 u32 port; /* xFIFO */
29 u32 sel; /* xFIFOSEL */
30 u32 ctr; /* xFIFOCTR */
31
32 struct usbhs_pipe *pipe;
33
34 struct dma_chan *tx_chan;
35 struct dma_chan *rx_chan;
36
37 struct sh_dmae_slave tx_slave;
38 struct sh_dmae_slave rx_slave;
39};
40
41#define USBHS_MAX_NUM_DFIFO 4
42struct usbhs_fifo_info {
43 struct usbhs_fifo cfifo;
44 struct usbhs_fifo dfifo[USBHS_MAX_NUM_DFIFO];
45};
46#define usbhsf_get_dnfifo(p, n) (&((p)->fifo_info.dfifo[n]))
47#define usbhs_for_each_dfifo(priv, dfifo, i) \
48 for ((i) = 0; \
49 ((i) < USBHS_MAX_NUM_DFIFO) && \
50 ((dfifo) = usbhsf_get_dnfifo(priv, (i))); \
51 (i)++)
52
53struct usbhs_pkt_handle;
54struct usbhs_pkt {
55 struct list_head node;
56 struct usbhs_pipe *pipe;
57 const struct usbhs_pkt_handle *handler;
58 void (*done)(struct usbhs_priv *priv,
59 struct usbhs_pkt *pkt);
60 struct work_struct work;
61 dma_addr_t dma;
62 dma_cookie_t cookie;
63 void *buf;
64 int length;
65 int trans;
66 int actual;
67 int zero;
68 int sequence;
69};
70
71struct usbhs_pkt_handle {
72 int (*prepare)(struct usbhs_pkt *pkt, int *is_done);
73 int (*try_run)(struct usbhs_pkt *pkt, int *is_done);
74 int (*dma_done)(struct usbhs_pkt *pkt, int *is_done);
75};
76
77/*
78 * fifo
79 */
80int usbhs_fifo_probe(struct usbhs_priv *priv);
81void usbhs_fifo_remove(struct usbhs_priv *priv);
82void usbhs_fifo_init(struct usbhs_priv *priv);
83void usbhs_fifo_quit(struct usbhs_priv *priv);
84void usbhs_fifo_clear_dcp(struct usbhs_pipe *pipe);
85
86/*
87 * packet info
88 */
89extern const struct usbhs_pkt_handle usbhs_fifo_pio_push_handler;
90extern const struct usbhs_pkt_handle usbhs_fifo_pio_pop_handler;
91extern const struct usbhs_pkt_handle usbhs_ctrl_stage_end_handler;
92
93extern const struct usbhs_pkt_handle usbhs_fifo_dma_push_handler;
94extern const struct usbhs_pkt_handle usbhs_fifo_dma_pop_handler;
95
96extern const struct usbhs_pkt_handle usbhs_dcp_status_stage_in_handler;
97extern const struct usbhs_pkt_handle usbhs_dcp_status_stage_out_handler;
98
99extern const struct usbhs_pkt_handle usbhs_dcp_data_stage_in_handler;
100extern const struct usbhs_pkt_handle usbhs_dcp_data_stage_out_handler;
101
102void usbhs_pkt_init(struct usbhs_pkt *pkt);
103void usbhs_pkt_push(struct usbhs_pipe *pipe, struct usbhs_pkt *pkt,
104 void (*done)(struct usbhs_priv *priv,
105 struct usbhs_pkt *pkt),
106 void *buf, int len, int zero, int sequence);
107struct usbhs_pkt *usbhs_pkt_pop(struct usbhs_pipe *pipe, struct usbhs_pkt *pkt);
108void usbhs_pkt_start(struct usbhs_pipe *pipe);
109
110#endif /* RENESAS_USB_FIFO_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_FIFO_H
18#define RENESAS_USB_FIFO_H
19
20#include <linux/interrupt.h>
21#include <linux/sh_dma.h>
22#include <linux/workqueue.h>
23#include <asm/dma.h>
24#include "pipe.h"
25
26struct usbhs_fifo {
27 char *name;
28 u32 port; /* xFIFO */
29 u32 sel; /* xFIFOSEL */
30 u32 ctr; /* xFIFOCTR */
31
32 struct usbhs_pipe *pipe;
33
34 struct dma_chan *tx_chan;
35 struct dma_chan *rx_chan;
36
37 struct sh_dmae_slave tx_slave;
38 struct sh_dmae_slave rx_slave;
39};
40
41struct usbhs_fifo_info {
42 struct usbhs_fifo cfifo;
43 struct usbhs_fifo d0fifo;
44 struct usbhs_fifo d1fifo;
45};
46
47struct usbhs_pkt_handle;
48struct usbhs_pkt {
49 struct list_head node;
50 struct usbhs_pipe *pipe;
51 struct usbhs_pkt_handle *handler;
52 void (*done)(struct usbhs_priv *priv,
53 struct usbhs_pkt *pkt);
54 struct work_struct work;
55 dma_addr_t dma;
56 void *buf;
57 int length;
58 int trans;
59 int actual;
60 int zero;
61 int sequence;
62};
63
64struct usbhs_pkt_handle {
65 int (*prepare)(struct usbhs_pkt *pkt, int *is_done);
66 int (*try_run)(struct usbhs_pkt *pkt, int *is_done);
67 int (*dma_done)(struct usbhs_pkt *pkt, int *is_done);
68};
69
70/*
71 * fifo
72 */
73int usbhs_fifo_probe(struct usbhs_priv *priv);
74void usbhs_fifo_remove(struct usbhs_priv *priv);
75void usbhs_fifo_init(struct usbhs_priv *priv);
76void usbhs_fifo_quit(struct usbhs_priv *priv);
77
78/*
79 * packet info
80 */
81extern struct usbhs_pkt_handle usbhs_fifo_pio_push_handler;
82extern struct usbhs_pkt_handle usbhs_fifo_pio_pop_handler;
83extern struct usbhs_pkt_handle usbhs_ctrl_stage_end_handler;
84
85extern struct usbhs_pkt_handle usbhs_fifo_dma_push_handler;
86extern struct usbhs_pkt_handle usbhs_fifo_dma_pop_handler;
87
88extern struct usbhs_pkt_handle usbhs_dcp_status_stage_in_handler;
89extern struct usbhs_pkt_handle usbhs_dcp_status_stage_out_handler;
90
91extern struct usbhs_pkt_handle usbhs_dcp_data_stage_in_handler;
92extern struct usbhs_pkt_handle usbhs_dcp_data_stage_out_handler;
93
94void usbhs_pkt_init(struct usbhs_pkt *pkt);
95void usbhs_pkt_push(struct usbhs_pipe *pipe, struct usbhs_pkt *pkt,
96 void (*done)(struct usbhs_priv *priv,
97 struct usbhs_pkt *pkt),
98 void *buf, int len, int zero, int sequence);
99struct usbhs_pkt *usbhs_pkt_pop(struct usbhs_pipe *pipe, struct usbhs_pkt *pkt);
100void usbhs_pkt_start(struct usbhs_pipe *pipe);
101
102#endif /* RENESAS_USB_FIFO_H */