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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_MOD_H
18#define RENESAS_USB_MOD_H
19
20#include <linux/spinlock.h>
21#include <linux/usb/renesas_usbhs.h>
22#include "./common.h"
23
24/*
25 * struct
26 */
27struct usbhs_irq_state {
28 u16 intsts0;
29 u16 intsts1;
30 u16 brdysts;
31 u16 nrdysts;
32 u16 bempsts;
33 u16 dvstctr;
34};
35
36struct usbhs_mod {
37 char *name;
38
39 /*
40 * entry point from common.c
41 */
42 int (*start)(struct usbhs_priv *priv);
43 int (*stop)(struct usbhs_priv *priv);
44
45 /* INTSTS0 :: DVST (DVSQ) */
46 int (*irq_dev_state)(struct usbhs_priv *priv,
47 struct usbhs_irq_state *irq_state);
48
49 /* INTSTS0 :: CTRT (CTSQ) */
50 int (*irq_ctrl_stage)(struct usbhs_priv *priv,
51 struct usbhs_irq_state *irq_state);
52
53 /* INTSTS0 :: BEMP */
54 /* BEMPSTS */
55 int (*irq_empty)(struct usbhs_priv *priv,
56 struct usbhs_irq_state *irq_state);
57 u16 irq_bempsts;
58
59 /* INTSTS0 :: BRDY */
60 /* BRDYSTS */
61 int (*irq_ready)(struct usbhs_priv *priv,
62 struct usbhs_irq_state *irq_state);
63 u16 irq_brdysts;
64
65 struct usbhs_priv *priv;
66};
67
68struct usbhs_mod_info {
69 struct usbhs_mod *mod[USBHS_MAX];
70 struct usbhs_mod *curt; /* current mod */
71
72 /*
73 * INTSTS0 :: VBINT
74 *
75 * This function will be used as autonomy mode
76 * when platform cannot call notify_hotplug.
77 *
78 * This callback cannot be member of "struct usbhs_mod"
79 * because it will be used even though
80 * host/gadget has not been selected.
81 */
82 int (*irq_vbus)(struct usbhs_priv *priv,
83 struct usbhs_irq_state *irq_state);
84};
85
86/*
87 * for host/gadget module
88 */
89struct usbhs_mod *usbhs_mod_get(struct usbhs_priv *priv, int id);
90struct usbhs_mod *usbhs_mod_get_current(struct usbhs_priv *priv);
91void usbhs_mod_register(struct usbhs_priv *priv, struct usbhs_mod *usb, int id);
92int usbhs_mod_is_host(struct usbhs_priv *priv, struct usbhs_mod *mod);
93int usbhs_mod_change(struct usbhs_priv *priv, int id);
94int usbhs_mod_probe(struct usbhs_priv *priv);
95void usbhs_mod_remove(struct usbhs_priv *priv);
96
97void usbhs_mod_autonomy_mode(struct usbhs_priv *priv);
98
99/*
100 * status functions
101 */
102int usbhs_status_get_usb_speed(struct usbhs_irq_state *irq_state);
103int usbhs_status_get_device_state(struct usbhs_irq_state *irq_state);
104int usbhs_status_get_ctrl_stage(struct usbhs_irq_state *irq_state);
105
106/*
107 * callback functions
108 */
109void usbhs_irq_callback_update(struct usbhs_priv *priv, struct usbhs_mod *mod);
110
111
112#define usbhs_mod_call(priv, func, param...) \
113 ({ \
114 struct usbhs_mod *mod; \
115 mod = usbhs_mod_get_current(priv); \
116 !mod ? -ENODEV : \
117 !mod->func ? 0 : \
118 mod->func(param); \
119 })
120
121/*
122 * gadget control
123 */
124#ifdef CONFIG_USB_RENESAS_USBHS_UDC
125extern int __devinit usbhs_mod_gadget_probe(struct usbhs_priv *priv);
126extern void __devexit usbhs_mod_gadget_remove(struct usbhs_priv *priv);
127#else
128static inline int usbhs_mod_gadget_probe(struct usbhs_priv *priv)
129{
130 return 0;
131}
132static inline void usbhs_mod_gadget_remove(struct usbhs_priv *priv)
133{
134}
135#endif
136
137#endif /* RENESAS_USB_MOD_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_MOD_H
18#define RENESAS_USB_MOD_H
19
20#include <linux/spinlock.h>
21#include <linux/usb/renesas_usbhs.h>
22#include "common.h"
23
24/*
25 * struct
26 */
27struct usbhs_irq_state {
28 u16 intsts0;
29 u16 intsts1;
30 u16 brdysts;
31 u16 nrdysts;
32 u16 bempsts;
33};
34
35struct usbhs_mod {
36 char *name;
37
38 /*
39 * entry point from common.c
40 */
41 int (*start)(struct usbhs_priv *priv);
42 int (*stop)(struct usbhs_priv *priv);
43
44 /*
45 * INTSTS0
46 */
47
48 /* DVST (DVSQ) */
49 int (*irq_dev_state)(struct usbhs_priv *priv,
50 struct usbhs_irq_state *irq_state);
51
52 /* CTRT (CTSQ) */
53 int (*irq_ctrl_stage)(struct usbhs_priv *priv,
54 struct usbhs_irq_state *irq_state);
55
56 /* BEMP / BEMPSTS */
57 int (*irq_empty)(struct usbhs_priv *priv,
58 struct usbhs_irq_state *irq_state);
59 u16 irq_bempsts;
60
61 /* BRDY / BRDYSTS */
62 int (*irq_ready)(struct usbhs_priv *priv,
63 struct usbhs_irq_state *irq_state);
64 u16 irq_brdysts;
65
66 /*
67 * INTSTS1
68 */
69
70 /* ATTCHE */
71 int (*irq_attch)(struct usbhs_priv *priv,
72 struct usbhs_irq_state *irq_state);
73
74 /* DTCHE */
75 int (*irq_dtch)(struct usbhs_priv *priv,
76 struct usbhs_irq_state *irq_state);
77
78 /* SIGN */
79 int (*irq_sign)(struct usbhs_priv *priv,
80 struct usbhs_irq_state *irq_state);
81
82 /* SACK */
83 int (*irq_sack)(struct usbhs_priv *priv,
84 struct usbhs_irq_state *irq_state);
85
86 struct usbhs_priv *priv;
87};
88
89struct usbhs_mod_info {
90 struct usbhs_mod *mod[USBHS_MAX];
91 struct usbhs_mod *curt; /* current mod */
92
93 /*
94 * INTSTS0 :: VBINT
95 *
96 * This function will be used as autonomy mode
97 * when platform cannot call notify_hotplug.
98 *
99 * This callback cannot be member of "struct usbhs_mod"
100 * because it will be used even though
101 * host/gadget has not been selected.
102 */
103 int (*irq_vbus)(struct usbhs_priv *priv,
104 struct usbhs_irq_state *irq_state);
105};
106
107/*
108 * for host/gadget module
109 */
110struct usbhs_mod *usbhs_mod_get(struct usbhs_priv *priv, int id);
111struct usbhs_mod *usbhs_mod_get_current(struct usbhs_priv *priv);
112void usbhs_mod_register(struct usbhs_priv *priv, struct usbhs_mod *usb, int id);
113int usbhs_mod_is_host(struct usbhs_priv *priv);
114int usbhs_mod_change(struct usbhs_priv *priv, int id);
115int usbhs_mod_probe(struct usbhs_priv *priv);
116void usbhs_mod_remove(struct usbhs_priv *priv);
117
118void usbhs_mod_autonomy_mode(struct usbhs_priv *priv);
119
120/*
121 * status functions
122 */
123int usbhs_status_get_device_state(struct usbhs_irq_state *irq_state);
124int usbhs_status_get_ctrl_stage(struct usbhs_irq_state *irq_state);
125
126/*
127 * callback functions
128 */
129void usbhs_irq_callback_update(struct usbhs_priv *priv, struct usbhs_mod *mod);
130
131
132#define usbhs_mod_call(priv, func, param...) \
133 ({ \
134 struct usbhs_mod *mod; \
135 mod = usbhs_mod_get_current(priv); \
136 !mod ? -ENODEV : \
137 !mod->func ? 0 : \
138 mod->func(param); \
139 })
140
141/*
142 * host / gadget control
143 */
144#if defined(CONFIG_USB_RENESAS_USBHS_HCD) || \
145 defined(CONFIG_USB_RENESAS_USBHS_HCD_MODULE)
146extern int usbhs_mod_host_probe(struct usbhs_priv *priv);
147extern int usbhs_mod_host_remove(struct usbhs_priv *priv);
148#else
149static inline int usbhs_mod_host_probe(struct usbhs_priv *priv)
150{
151 return 0;
152}
153static inline void usbhs_mod_host_remove(struct usbhs_priv *priv)
154{
155}
156#endif
157
158#if defined(CONFIG_USB_RENESAS_USBHS_UDC) || \
159 defined(CONFIG_USB_RENESAS_USBHS_UDC_MODULE)
160extern int usbhs_mod_gadget_probe(struct usbhs_priv *priv);
161extern void usbhs_mod_gadget_remove(struct usbhs_priv *priv);
162#else
163static inline int usbhs_mod_gadget_probe(struct usbhs_priv *priv)
164{
165 return 0;
166}
167static inline void usbhs_mod_gadget_remove(struct usbhs_priv *priv)
168{
169}
170#endif
171
172#endif /* RENESAS_USB_MOD_H */