1 /* SPDX-License-Identifier: GPL-2.0+ */
2 /*
3 * Copyright (c) 2011 The Chromium OS Authors.
4 */
5
6 #ifndef __SANDBOX_ASM_IO_H
7 #define __SANDBOX_ASM_IO_H
8
9 void *phys_to_virt(phys_addr_t paddr);
10 #define phys_to_virt phys_to_virt
11
12 phys_addr_t virt_to_phys(void *vaddr);
13 #define virt_to_phys virt_to_phys
14
15 void *map_physmem(phys_addr_t paddr, unsigned long len, unsigned long flags);
16 #define map_physmem map_physmem
17
18 /*
19 * Take down a mapping set up by map_physmem().
20 */
21 void unmap_physmem(const void *vaddr, unsigned long flags);
22 #define unmap_physmem unmap_physmem
23
24 #include <asm-generic/io.h>
25
26 /* For sandbox, we want addresses to point into our RAM buffer */
map_sysmem(phys_addr_t paddr,unsigned long len)27 static inline void *map_sysmem(phys_addr_t paddr, unsigned long len)
28 {
29 return map_physmem(paddr, len, MAP_WRBACK);
30 }
31
32 /* Remove a previous mapping */
unmap_sysmem(const void * vaddr)33 static inline void unmap_sysmem(const void *vaddr)
34 {
35 unmap_physmem(vaddr, MAP_WRBACK);
36 }
37
38 /* Map from a pointer to our RAM buffer */
39 phys_addr_t map_to_sysmem(const void *ptr);
40
41 /* Define nops for sandbox I/O access */
42 #define readb(addr) ((void)addr, 0)
43 #define readw(addr) ((void)addr, 0)
44 #define readl(addr) ((void)addr, 0)
45 #ifdef CONFIG_SANDBOX64
46 #define readq(addr) ((void)addr, 0)
47 #endif
48 #define writeb(v, addr) ((void)addr)
49 #define writew(v, addr) ((void)addr)
50 #define writel(v, addr) ((void)addr)
51 #ifdef CONFIG_SANDBOX64
52 #define writeq(v, addr) ((void)addr)
53 #endif
54
55 /*
56 * Clear and set bits in one shot. These macros can be used to clear and
57 * set multiple bits in a register using a single call. These macros can
58 * also be used to set a multiple-bit bit pattern using a mask, by
59 * specifying the mask in the 'clear' parameter and the new bit pattern
60 * in the 'set' parameter.
61 */
62
63 #define out_arch(type,endian,a,v) write##type(cpu_to_##endian(v),a)
64 #define in_arch(type,endian,a) endian##_to_cpu(read##type(a))
65
66 #define out_le64(a,v) out_arch(q,le64,a,v)
67 #define out_le32(a,v) out_arch(l,le32,a,v)
68 #define out_le16(a,v) out_arch(w,le16,a,v)
69
70 #define in_le64(a) in_arch(q,le64,a)
71 #define in_le32(a) in_arch(l,le32,a)
72 #define in_le16(a) in_arch(w,le16,a)
73
74 #define out_be32(a,v) out_arch(l,be32,a,v)
75 #define out_be16(a,v) out_arch(w,be16,a,v)
76
77 #define in_be32(a) in_arch(l,be32,a)
78 #define in_be16(a) in_arch(w,be16,a)
79
80 #define out_8(a,v) writeb(v,a)
81 #define in_8(a) readb(a)
82
83 #define clrbits(type, addr, clear) \
84 out_##type((addr), in_##type(addr) & ~(clear))
85
86 #define setbits(type, addr, set) \
87 out_##type((addr), in_##type(addr) | (set))
88
89 #define clrsetbits(type, addr, clear, set) \
90 out_##type((addr), (in_##type(addr) & ~(clear)) | (set))
91
92 #define clrbits_be32(addr, clear) clrbits(be32, addr, clear)
93 #define setbits_be32(addr, set) setbits(be32, addr, set)
94 #define clrsetbits_be32(addr, clear, set) clrsetbits(be32, addr, clear, set)
95
96 #define clrbits_le32(addr, clear) clrbits(le32, addr, clear)
97 #define setbits_le32(addr, set) setbits(le32, addr, set)
98 #define clrsetbits_le32(addr, clear, set) clrsetbits(le32, addr, clear, set)
99
100 #define clrbits_be16(addr, clear) clrbits(be16, addr, clear)
101 #define setbits_be16(addr, set) setbits(be16, addr, set)
102 #define clrsetbits_be16(addr, clear, set) clrsetbits(be16, addr, clear, set)
103
104 #define clrbits_le16(addr, clear) clrbits(le16, addr, clear)
105 #define setbits_le16(addr, set) setbits(le16, addr, set)
106 #define clrsetbits_le16(addr, clear, set) clrsetbits(le16, addr, clear, set)
107
108 #define clrbits_8(addr, clear) clrbits(8, addr, clear)
109 #define setbits_8(addr, set) setbits(8, addr, set)
110 #define clrsetbits_8(addr, clear, set) clrsetbits(8, addr, clear, set)
111
112 /* I/O access functions */
113 int inl(unsigned int addr);
114 int inw(unsigned int addr);
115 int inb(unsigned int addr);
116
117 void outl(unsigned int value, unsigned int addr);
118 void outw(unsigned int value, unsigned int addr);
119 void outb(unsigned int value, unsigned int addr);
120
121 #define out_arch(type,endian,a,v) write##type(cpu_to_##endian(v),a)
122 #define in_arch(type,endian,a) endian##_to_cpu(read##type(a))
123
124 #define out_le32(a,v) out_arch(l,le32,a,v)
125 #define out_le16(a,v) out_arch(w,le16,a,v)
126
127 #define in_le32(a) in_arch(l,le32,a)
128 #define in_le16(a) in_arch(w,le16,a)
129
130 #define out_be32(a,v) out_arch(l,be32,a,v)
131 #define out_be16(a,v) out_arch(w,be16,a,v)
132
133 #define in_be32(a) in_arch(l,be32,a)
134 #define in_be16(a) in_arch(w,be16,a)
135
136 #define out_8(a,v) writeb(v,a)
137 #define in_8(a) readb(a)
138
139 #define clrbits(type, addr, clear) \
140 out_##type((addr), in_##type(addr) & ~(clear))
141
142 #define setbits(type, addr, set) \
143 out_##type((addr), in_##type(addr) | (set))
144
145 #define clrsetbits(type, addr, clear, set) \
146 out_##type((addr), (in_##type(addr) & ~(clear)) | (set))
147
148 #define clrbits_be32(addr, clear) clrbits(be32, addr, clear)
149 #define setbits_be32(addr, set) setbits(be32, addr, set)
150 #define clrsetbits_be32(addr, clear, set) clrsetbits(be32, addr, clear, set)
151
152 #define clrbits_le32(addr, clear) clrbits(le32, addr, clear)
153 #define setbits_le32(addr, set) setbits(le32, addr, set)
154 #define clrsetbits_le32(addr, clear, set) clrsetbits(le32, addr, clear, set)
155
156 #define clrbits_be16(addr, clear) clrbits(be16, addr, clear)
157 #define setbits_be16(addr, set) setbits(be16, addr, set)
158 #define clrsetbits_be16(addr, clear, set) clrsetbits(be16, addr, clear, set)
159
160 #define clrbits_le16(addr, clear) clrbits(le16, addr, clear)
161 #define setbits_le16(addr, set) setbits(le16, addr, set)
162 #define clrsetbits_le16(addr, clear, set) clrsetbits(le16, addr, clear, set)
163
164 #define clrbits_8(addr, clear) clrbits(8, addr, clear)
165 #define setbits_8(addr, set) setbits(8, addr, set)
166 #define clrsetbits_8(addr, clear, set) clrsetbits(8, addr, clear, set)
167
_insw(volatile u16 * port,void * buf,int ns)168 static inline void _insw(volatile u16 *port, void *buf, int ns)
169 {
170 }
171
_outsw(volatile u16 * port,const void * buf,int ns)172 static inline void _outsw(volatile u16 *port, const void *buf, int ns)
173 {
174 }
175
memset_io(volatile void * addr,unsigned char val,int count)176 static inline void memset_io(volatile void *addr, unsigned char val, int count)
177 {
178 }
179
memcpy_fromio(void * dst,const volatile void * src,int count)180 static inline void memcpy_fromio(void *dst, const volatile void *src, int count)
181 {
182 }
183
memcpy_toio(volatile void * dst,const void * src,int count)184 static inline void memcpy_toio(volatile void *dst, const void *src, int count)
185 {
186 }
187
188 #define insw(port, buf, ns) _insw((u16 *)port, buf, ns)
189 #define outsw(port, buf, ns) _outsw((u16 *)port, buf, ns)
190
191 #include <iotrace.h>
192 #include <asm/types.h>
193
194 #endif
195