1 #ifndef _ASM_ARCH_CRIS_IO_H
2 #define _ASM_ARCH_CRIS_IO_H
3
4 #include <linux/spinlock.h>
5 #include <hwregs/reg_map.h>
6 #include <hwregs/reg_rdwr.h>
7 #include <hwregs/gio_defs.h>
8
9 enum crisv32_io_dir
10 {
11 crisv32_io_dir_in = 0,
12 crisv32_io_dir_out = 1
13 };
14
15 struct crisv32_ioport
16 {
17 volatile unsigned long *oe;
18 volatile unsigned long *data;
19 volatile unsigned long *data_in;
20 unsigned int pin_count;
21 spinlock_t lock;
22 };
23
24 struct crisv32_iopin
25 {
26 struct crisv32_ioport* port;
27 int bit;
28 };
29
30 extern struct crisv32_ioport crisv32_ioports[];
31
32 extern struct crisv32_iopin crisv32_led1_green;
33 extern struct crisv32_iopin crisv32_led1_red;
34 extern struct crisv32_iopin crisv32_led2_green;
35 extern struct crisv32_iopin crisv32_led2_red;
36 extern struct crisv32_iopin crisv32_led3_green;
37 extern struct crisv32_iopin crisv32_led3_red;
38
39 extern struct crisv32_iopin crisv32_led_net0_green;
40 extern struct crisv32_iopin crisv32_led_net0_red;
41 extern struct crisv32_iopin crisv32_led_net1_green;
42 extern struct crisv32_iopin crisv32_led_net1_red;
43
crisv32_io_set(struct crisv32_iopin * iopin,int val)44 static inline void crisv32_io_set(struct crisv32_iopin *iopin, int val)
45 {
46 unsigned long flags;
47 spin_lock_irqsave(&iopin->port->lock, flags);
48
49 if (iopin->port->data) {
50 if (val)
51 *iopin->port->data |= iopin->bit;
52 else
53 *iopin->port->data &= ~iopin->bit;
54 }
55
56 spin_unlock_irqrestore(&iopin->port->lock, flags);
57 }
58
crisv32_io_set_dir(struct crisv32_iopin * iopin,enum crisv32_io_dir dir)59 static inline void crisv32_io_set_dir(struct crisv32_iopin* iopin,
60 enum crisv32_io_dir dir)
61 {
62 unsigned long flags;
63 spin_lock_irqsave(&iopin->port->lock, flags);
64
65 if (iopin->port->oe) {
66 if (dir == crisv32_io_dir_in)
67 *iopin->port->oe &= ~iopin->bit;
68 else
69 *iopin->port->oe |= iopin->bit;
70 }
71
72 spin_unlock_irqrestore(&iopin->port->lock, flags);
73 }
74
crisv32_io_rd(struct crisv32_iopin * iopin)75 static inline int crisv32_io_rd(struct crisv32_iopin* iopin)
76 {
77 return ((*iopin->port->data_in & iopin->bit) ? 1 : 0);
78 }
79
80 int crisv32_io_get(struct crisv32_iopin* iopin,
81 unsigned int port, unsigned int pin);
82 int crisv32_io_get_name(struct crisv32_iopin* iopin,
83 const char *name);
84
85 #define CRIS_LED_OFF 0x00
86 #define CRIS_LED_GREEN 0x01
87 #define CRIS_LED_RED 0x02
88 #define CRIS_LED_ORANGE (CRIS_LED_GREEN | CRIS_LED_RED)
89
90 #if (defined(CONFIG_ETRAX_NBR_LED_GRP_ONE) || defined(CONFIG_ETRAX_NBR_LED_GRP_TWO))
91 #define CRIS_LED_NETWORK_GRP0_SET(x) \
92 do { \
93 CRIS_LED_NETWORK_GRP0_SET_G((x) & CRIS_LED_GREEN); \
94 CRIS_LED_NETWORK_GRP0_SET_R((x) & CRIS_LED_RED); \
95 } while (0)
96 #else
97 #define CRIS_LED_NETWORK_GRP0_SET(x) while (0) {}
98 #endif
99
100 #define CRIS_LED_NETWORK_GRP0_SET_G(x) \
101 crisv32_io_set(&crisv32_led_net0_green, !(x));
102
103 #define CRIS_LED_NETWORK_GRP0_SET_R(x) \
104 crisv32_io_set(&crisv32_led_net0_red, !(x));
105
106 #if defined(CONFIG_ETRAX_NBR_LED_GRP_TWO)
107 #define CRIS_LED_NETWORK_GRP1_SET(x) \
108 do { \
109 CRIS_LED_NETWORK_GRP1_SET_G((x) & CRIS_LED_GREEN); \
110 CRIS_LED_NETWORK_GRP1_SET_R((x) & CRIS_LED_RED); \
111 } while (0)
112 #else
113 #define CRIS_LED_NETWORK_GRP1_SET(x) while (0) {}
114 #endif
115
116 #define CRIS_LED_NETWORK_GRP1_SET_G(x) \
117 crisv32_io_set(&crisv32_led_net1_green, !(x));
118
119 #define CRIS_LED_NETWORK_GRP1_SET_R(x) \
120 crisv32_io_set(&crisv32_led_net1_red, !(x));
121
122 #define CRIS_LED_ACTIVE_SET(x) \
123 do { \
124 CRIS_LED_ACTIVE_SET_G((x) & CRIS_LED_GREEN); \
125 CRIS_LED_ACTIVE_SET_R((x) & CRIS_LED_RED); \
126 } while (0)
127
128 #define CRIS_LED_ACTIVE_SET_G(x) \
129 crisv32_io_set(&crisv32_led2_green, !(x));
130 #define CRIS_LED_ACTIVE_SET_R(x) \
131 crisv32_io_set(&crisv32_led2_red, !(x));
132 #define CRIS_LED_DISK_WRITE(x) \
133 do{\
134 crisv32_io_set(&crisv32_led3_green, !(x)); \
135 crisv32_io_set(&crisv32_led3_red, !(x)); \
136 }while(0)
137 #define CRIS_LED_DISK_READ(x) \
138 crisv32_io_set(&crisv32_led3_green, !(x));
139
140 #endif
141