1 /*
2  * MPC8260 I/O port pin manipulation functions
3  */
4 
5 #ifndef _ASM_IOPIN_8260_H_
6 #define _ASM_IOPIN_8260_H_
7 
8 #include <linux/types.h>
9 #include <asm/immap_8260.h>
10 
11 #ifdef __KERNEL__
12 
13 typedef
14     struct {
15 	u_char port:2;	/* port number (A=0, B=1, C=2, D=3) */
16 	u_char pin:5;	/* port pin (0-31) */
17 	u_char flag:1;	/* for whatever */
18     }
19 iopin_t;
20 
21 #define IOPIN_PORTA	0
22 #define IOPIN_PORTB	1
23 #define IOPIN_PORTC	2
24 #define IOPIN_PORTD	3
25 
26 extern __inline__ void
iopin_set_high(iopin_t * iopin)27 iopin_set_high(iopin_t *iopin)
28 {
29     volatile uint *datp = &((immap_t *)CONFIG_SYS_IMMR)->im_ioport.iop_pdata;
30     datp[iopin->port * 8] |= (1 << (31 - iopin->pin));
31 }
32 
33 extern __inline__ void
iopin_set_low(iopin_t * iopin)34 iopin_set_low(iopin_t *iopin)
35 {
36     volatile uint *datp = &((immap_t *)CONFIG_SYS_IMMR)->im_ioport.iop_pdata;
37     datp[iopin->port * 8] &= ~(1 << (31 - iopin->pin));
38 }
39 
40 extern __inline__ uint
iopin_is_high(iopin_t * iopin)41 iopin_is_high(iopin_t *iopin)
42 {
43     volatile uint *datp = &((immap_t *)CONFIG_SYS_IMMR)->im_ioport.iop_pdata;
44     return (datp[iopin->port * 8] >> (31 - iopin->pin)) & 1;
45 }
46 
47 extern __inline__ uint
iopin_is_low(iopin_t * iopin)48 iopin_is_low(iopin_t *iopin)
49 {
50     volatile uint *datp = &((immap_t *)CONFIG_SYS_IMMR)->im_ioport.iop_pdata;
51     return ((datp[iopin->port * 8] >> (31 - iopin->pin)) & 1) ^ 1;
52 }
53 
54 extern __inline__ void
iopin_set_out(iopin_t * iopin)55 iopin_set_out(iopin_t *iopin)
56 {
57     volatile uint *dirp = &((immap_t *)CONFIG_SYS_IMMR)->im_ioport.iop_pdira;
58     dirp[iopin->port * 8] |= (1 << (31 - iopin->pin));
59 }
60 
61 extern __inline__ void
iopin_set_in(iopin_t * iopin)62 iopin_set_in(iopin_t *iopin)
63 {
64     volatile uint *dirp = &((immap_t *)CONFIG_SYS_IMMR)->im_ioport.iop_pdira;
65     dirp[iopin->port * 8] &= ~(1 << (31 - iopin->pin));
66 }
67 
68 extern __inline__ uint
iopin_is_out(iopin_t * iopin)69 iopin_is_out(iopin_t *iopin)
70 {
71     volatile uint *dirp = &((immap_t *)CONFIG_SYS_IMMR)->im_ioport.iop_pdira;
72     return (dirp[iopin->port * 8] >> (31 - iopin->pin)) & 1;
73 }
74 
75 extern __inline__ uint
iopin_is_in(iopin_t * iopin)76 iopin_is_in(iopin_t *iopin)
77 {
78     volatile uint *dirp = &((immap_t *)CONFIG_SYS_IMMR)->im_ioport.iop_pdira;
79     return ((dirp[iopin->port * 8] >> (31 - iopin->pin)) & 1) ^ 1;
80 }
81 
82 extern __inline__ void
iopin_set_odr(iopin_t * iopin)83 iopin_set_odr(iopin_t *iopin)
84 {
85     volatile uint *odrp = &((immap_t *)CONFIG_SYS_IMMR)->im_ioport.iop_podra;
86     odrp[iopin->port * 8] |= (1 << (31 - iopin->pin));
87 }
88 
89 extern __inline__ void
iopin_set_act(iopin_t * iopin)90 iopin_set_act(iopin_t *iopin)
91 {
92     volatile uint *odrp = &((immap_t *)CONFIG_SYS_IMMR)->im_ioport.iop_podra;
93     odrp[iopin->port * 8] &= ~(1 << (31 - iopin->pin));
94 }
95 
96 extern __inline__ uint
iopin_is_odr(iopin_t * iopin)97 iopin_is_odr(iopin_t *iopin)
98 {
99     volatile uint *odrp = &((immap_t *)CONFIG_SYS_IMMR)->im_ioport.iop_podra;
100     return (odrp[iopin->port * 8] >> (31 - iopin->pin)) & 1;
101 }
102 
103 extern __inline__ uint
iopin_is_act(iopin_t * iopin)104 iopin_is_act(iopin_t *iopin)
105 {
106     volatile uint *odrp = &((immap_t *)CONFIG_SYS_IMMR)->im_ioport.iop_podra;
107     return ((odrp[iopin->port * 8] >> (31 - iopin->pin)) & 1) ^ 1;
108 }
109 
110 extern __inline__ void
iopin_set_ded(iopin_t * iopin)111 iopin_set_ded(iopin_t *iopin)
112 {
113     volatile uint *parp = &((immap_t *)CONFIG_SYS_IMMR)->im_ioport.iop_ppara;
114     parp[iopin->port * 8] |= (1 << (31 - iopin->pin));
115 }
116 
117 extern __inline__ void
iopin_set_gen(iopin_t * iopin)118 iopin_set_gen(iopin_t *iopin)
119 {
120     volatile uint *parp = &((immap_t *)CONFIG_SYS_IMMR)->im_ioport.iop_ppara;
121     parp[iopin->port * 8] &= ~(1 << (31 - iopin->pin));
122 }
123 
124 extern __inline__ uint
iopin_is_ded(iopin_t * iopin)125 iopin_is_ded(iopin_t *iopin)
126 {
127     volatile uint *parp = &((immap_t *)CONFIG_SYS_IMMR)->im_ioport.iop_ppara;
128     return (parp[iopin->port * 8] >> (31 - iopin->pin)) & 1;
129 }
130 
131 extern __inline__ uint
iopin_is_gen(iopin_t * iopin)132 iopin_is_gen(iopin_t *iopin)
133 {
134     volatile uint *parp = &((immap_t *)CONFIG_SYS_IMMR)->im_ioport.iop_ppara;
135     return ((parp[iopin->port * 8] >> (31 - iopin->pin)) & 1) ^ 1;
136 }
137 
138 extern __inline__ void
iopin_set_opt2(iopin_t * iopin)139 iopin_set_opt2(iopin_t *iopin)
140 {
141     volatile uint *sorp = &((immap_t *)CONFIG_SYS_IMMR)->im_ioport.iop_psora;
142     sorp[iopin->port * 8] |= (1 << (31 - iopin->pin));
143 }
144 
145 extern __inline__ void
iopin_set_opt1(iopin_t * iopin)146 iopin_set_opt1(iopin_t *iopin)
147 {
148     volatile uint *sorp = &((immap_t *)CONFIG_SYS_IMMR)->im_ioport.iop_psora;
149     sorp[iopin->port * 8] &= ~(1 << (31 - iopin->pin));
150 }
151 
152 extern __inline__ uint
iopin_is_opt2(iopin_t * iopin)153 iopin_is_opt2(iopin_t *iopin)
154 {
155     volatile uint *sorp = &((immap_t *)CONFIG_SYS_IMMR)->im_ioport.iop_psora;
156     return (sorp[iopin->port * 8] >> (31 - iopin->pin)) & 1;
157 }
158 
159 extern __inline__ uint
iopin_is_opt1(iopin_t * iopin)160 iopin_is_opt1(iopin_t *iopin)
161 {
162     volatile uint *sorp = &((immap_t *)CONFIG_SYS_IMMR)->im_ioport.iop_psora;
163     return ((sorp[iopin->port * 8] >> (31 - iopin->pin)) & 1) ^ 1;
164 }
165 
166 #endif /* __KERNEL__ */
167 
168 #endif /* _ASM_IOPIN_8260_H_ */
169