1 /*
2 * linux/arch/m32r/platforms/mappi/io.c
3 *
4 * Typical I/O routines for Mappi board.
5 *
6 * Copyright (c) 2001-2005 Hiroyuki Kondo, Hirokazu Takata,
7 * Hitoshi Yamamoto
8 */
9
10 #include <asm/m32r.h>
11 #include <asm/page.h>
12 #include <asm/io.h>
13 #include <asm/byteorder.h>
14
15 #if defined(CONFIG_PCMCIA) && defined(CONFIG_M32R_PCC)
16 #include <linux/types.h>
17
18 #define M32R_PCC_IOMAP_SIZE 0x1000
19
20 #define M32R_PCC_IOSTART0 0x1000
21 #define M32R_PCC_IOEND0 (M32R_PCC_IOSTART0 + M32R_PCC_IOMAP_SIZE - 1)
22 #define M32R_PCC_IOSTART1 0x2000
23 #define M32R_PCC_IOEND1 (M32R_PCC_IOSTART1 + M32R_PCC_IOMAP_SIZE - 1)
24
25 extern void pcc_ioread(int, unsigned long, void *, size_t, size_t, int);
26 extern void pcc_iowrite(int, unsigned long, void *, size_t, size_t, int);
27 #endif /* CONFIG_PCMCIA && CONFIG_M32R_PCC */
28
29 #define PORT2ADDR(port) _port2addr(port)
30
_port2addr(unsigned long port)31 static inline void *_port2addr(unsigned long port)
32 {
33 return (void *)(port | NONCACHE_OFFSET);
34 }
35
_port2addr_ne(unsigned long port)36 static inline void *_port2addr_ne(unsigned long port)
37 {
38 return (void *)((port<<1) + NONCACHE_OFFSET + 0x0C000000);
39 }
40
delay(void)41 static inline void delay(void)
42 {
43 __asm__ __volatile__ ("push r0; \n\t pop r0;" : : :"memory");
44 }
45
46 /*
47 * NIC I/O function
48 */
49
50 #define PORT2ADDR_NE(port) _port2addr_ne(port)
51
_ne_inb(void * portp)52 static inline unsigned char _ne_inb(void *portp)
53 {
54 return (unsigned char) *(volatile unsigned short *)portp;
55 }
56
_ne_inw(void * portp)57 static inline unsigned short _ne_inw(void *portp)
58 {
59 unsigned short tmp;
60
61 tmp = *(volatile unsigned short *)portp;
62 return le16_to_cpu(tmp);
63 }
64
_ne_outb(unsigned char b,void * portp)65 static inline void _ne_outb(unsigned char b, void *portp)
66 {
67 *(volatile unsigned short *)portp = (unsigned short)b;
68 }
69
_ne_outw(unsigned short w,void * portp)70 static inline void _ne_outw(unsigned short w, void *portp)
71 {
72 *(volatile unsigned short *)portp = cpu_to_le16(w);
73 }
74
_inb(unsigned long port)75 unsigned char _inb(unsigned long port)
76 {
77 if (port >= 0x300 && port < 0x320)
78 return _ne_inb(PORT2ADDR_NE(port));
79 else
80 #if defined(CONFIG_PCMCIA) && defined(CONFIG_M32R_PCC)
81 if (port >= M32R_PCC_IOSTART0 && port <= M32R_PCC_IOEND0) {
82 unsigned char b;
83 pcc_ioread(0, port, &b, sizeof(b), 1, 0);
84 return b;
85 } else if (port >= M32R_PCC_IOSTART1 && port <= M32R_PCC_IOEND1) {
86 unsigned char b;
87 pcc_ioread(1, port, &b, sizeof(b), 1, 0);
88 return b;
89 } else
90 #endif
91
92 return *(volatile unsigned char *)PORT2ADDR(port);
93 }
94
_inw(unsigned long port)95 unsigned short _inw(unsigned long port)
96 {
97 if (port >= 0x300 && port < 0x320)
98 return _ne_inw(PORT2ADDR_NE(port));
99 else
100 #if defined(CONFIG_PCMCIA) && defined(CONFIG_M32R_PCC)
101 if (port >= M32R_PCC_IOSTART0 && port <= M32R_PCC_IOEND0) {
102 unsigned short w;
103 pcc_ioread(0, port, &w, sizeof(w), 1, 0);
104 return w;
105 } else if (port >= M32R_PCC_IOSTART1 && port <= M32R_PCC_IOEND1) {
106 unsigned short w;
107 pcc_ioread(1, port, &w, sizeof(w), 1, 0);
108 return w;
109 } else
110 #endif
111 return *(volatile unsigned short *)PORT2ADDR(port);
112 }
113
_inl(unsigned long port)114 unsigned long _inl(unsigned long port)
115 {
116 #if defined(CONFIG_PCMCIA) && defined(CONFIG_M32R_PCC)
117 if (port >= M32R_PCC_IOSTART0 && port <= M32R_PCC_IOEND0) {
118 unsigned long l;
119 pcc_ioread(0, port, &l, sizeof(l), 1, 0);
120 return l;
121 } else if (port >= M32R_PCC_IOSTART1 && port <= M32R_PCC_IOEND1) {
122 unsigned short l;
123 pcc_ioread(1, port, &l, sizeof(l), 1, 0);
124 return l;
125 } else
126 #endif
127 return *(volatile unsigned long *)PORT2ADDR(port);
128 }
129
_inb_p(unsigned long port)130 unsigned char _inb_p(unsigned long port)
131 {
132 unsigned char v = _inb(port);
133 delay();
134 return (v);
135 }
136
_inw_p(unsigned long port)137 unsigned short _inw_p(unsigned long port)
138 {
139 unsigned short v = _inw(port);
140 delay();
141 return (v);
142 }
143
_inl_p(unsigned long port)144 unsigned long _inl_p(unsigned long port)
145 {
146 unsigned long v = _inl(port);
147 delay();
148 return (v);
149 }
150
_outb(unsigned char b,unsigned long port)151 void _outb(unsigned char b, unsigned long port)
152 {
153 if (port >= 0x300 && port < 0x320)
154 _ne_outb(b, PORT2ADDR_NE(port));
155 else
156 #if defined(CONFIG_PCMCIA) && defined(CONFIG_M32R_PCC)
157 if (port >= M32R_PCC_IOSTART0 && port <= M32R_PCC_IOEND0) {
158 pcc_iowrite(0, port, &b, sizeof(b), 1, 0);
159 } else if (port >= M32R_PCC_IOSTART1 && port <= M32R_PCC_IOEND1) {
160 pcc_iowrite(1, port, &b, sizeof(b), 1, 0);
161 } else
162 #endif
163 *(volatile unsigned char *)PORT2ADDR(port) = b;
164 }
165
_outw(unsigned short w,unsigned long port)166 void _outw(unsigned short w, unsigned long port)
167 {
168 if (port >= 0x300 && port < 0x320)
169 _ne_outw(w, PORT2ADDR_NE(port));
170 else
171 #if defined(CONFIG_PCMCIA) && defined(CONFIG_M32R_PCC)
172 if (port >= M32R_PCC_IOSTART0 && port <= M32R_PCC_IOEND0) {
173 pcc_iowrite(0, port, &w, sizeof(w), 1, 0);
174 } else if (port >= M32R_PCC_IOSTART1 && port <= M32R_PCC_IOEND1) {
175 pcc_iowrite(1, port, &w, sizeof(w), 1, 0);
176 } else
177 #endif
178 *(volatile unsigned short *)PORT2ADDR(port) = w;
179 }
180
_outl(unsigned long l,unsigned long port)181 void _outl(unsigned long l, unsigned long port)
182 {
183 #if defined(CONFIG_PCMCIA) && defined(CONFIG_M32R_PCC)
184 if (port >= M32R_PCC_IOSTART0 && port <= M32R_PCC_IOEND0) {
185 pcc_iowrite(0, port, &l, sizeof(l), 1, 0);
186 } else if (port >= M32R_PCC_IOSTART1 && port <= M32R_PCC_IOEND1) {
187 pcc_iowrite(1, port, &l, sizeof(l), 1, 0);
188 } else
189 #endif
190 *(volatile unsigned long *)PORT2ADDR(port) = l;
191 }
192
_outb_p(unsigned char b,unsigned long port)193 void _outb_p(unsigned char b, unsigned long port)
194 {
195 _outb(b, port);
196 delay();
197 }
198
_outw_p(unsigned short w,unsigned long port)199 void _outw_p(unsigned short w, unsigned long port)
200 {
201 _outw(w, port);
202 delay();
203 }
204
_outl_p(unsigned long l,unsigned long port)205 void _outl_p(unsigned long l, unsigned long port)
206 {
207 _outl(l, port);
208 delay();
209 }
210
_insb(unsigned int port,void * addr,unsigned long count)211 void _insb(unsigned int port, void *addr, unsigned long count)
212 {
213 unsigned short *buf = addr;
214 unsigned short *portp;
215
216 if (port >= 0x300 && port < 0x320){
217 portp = PORT2ADDR_NE(port);
218 while (count--)
219 *buf++ = *(volatile unsigned char *)portp;
220 #if defined(CONFIG_PCMCIA) && defined(CONFIG_M32R_PCC)
221 } else if (port >= M32R_PCC_IOSTART0 && port <= M32R_PCC_IOEND0) {
222 pcc_ioread(0, port, (void *)addr, sizeof(unsigned char),
223 count, 1);
224 } else if (port >= M32R_PCC_IOSTART1 && port <= M32R_PCC_IOEND1) {
225 pcc_ioread(1, port, (void *)addr, sizeof(unsigned char),
226 count, 1);
227 #endif
228 } else {
229 portp = PORT2ADDR(port);
230 while (count--)
231 *buf++ = *(volatile unsigned char *)portp;
232 }
233 }
234
_insw(unsigned int port,void * addr,unsigned long count)235 void _insw(unsigned int port, void *addr, unsigned long count)
236 {
237 unsigned short *buf = addr;
238 unsigned short *portp;
239
240 if (port >= 0x300 && port < 0x320) {
241 portp = PORT2ADDR_NE(port);
242 while (count--)
243 *buf++ = _ne_inw(portp);
244 #if defined(CONFIG_PCMCIA) && defined(CONFIG_M32R_PCC)
245 } else if (port >= M32R_PCC_IOSTART0 && port <= M32R_PCC_IOEND0) {
246 pcc_ioread(0, port, (void *)addr, sizeof(unsigned short),
247 count, 1);
248 } else if (port >= M32R_PCC_IOSTART1 && port <= M32R_PCC_IOEND1) {
249 pcc_ioread(1, port, (void *)addr, sizeof(unsigned short),
250 count, 1);
251 #endif
252 } else {
253 portp = PORT2ADDR(port);
254 while (count--)
255 *buf++ = *(volatile unsigned short *)portp;
256 }
257 }
258
_insl(unsigned int port,void * addr,unsigned long count)259 void _insl(unsigned int port, void *addr, unsigned long count)
260 {
261 unsigned long *buf = addr;
262 unsigned long *portp;
263
264 portp = PORT2ADDR(port);
265 while (count--)
266 *buf++ = *(volatile unsigned long *)portp;
267 }
268
_outsb(unsigned int port,const void * addr,unsigned long count)269 void _outsb(unsigned int port, const void *addr, unsigned long count)
270 {
271 const unsigned char *buf = addr;
272 unsigned char *portp;
273
274 if (port >= 0x300 && port < 0x320) {
275 portp = PORT2ADDR_NE(port);
276 while (count--)
277 _ne_outb(*buf++, portp);
278 #if defined(CONFIG_PCMCIA) && defined(CONFIG_M32R_PCC)
279 } else if (port >= M32R_PCC_IOSTART0 && port <= M32R_PCC_IOEND0) {
280 pcc_iowrite(0, port, (void *)addr, sizeof(unsigned char),
281 count, 1);
282 } else if (port >= M32R_PCC_IOSTART1 && port <= M32R_PCC_IOEND1) {
283 pcc_iowrite(1, port, (void *)addr, sizeof(unsigned char),
284 count, 1);
285 #endif
286 } else {
287 portp = PORT2ADDR(port);
288 while (count--)
289 *(volatile unsigned char *)portp = *buf++;
290 }
291 }
292
_outsw(unsigned int port,const void * addr,unsigned long count)293 void _outsw(unsigned int port, const void *addr, unsigned long count)
294 {
295 const unsigned short *buf = addr;
296 unsigned short *portp;
297
298 if (port >= 0x300 && port < 0x320) {
299 portp = PORT2ADDR_NE(port);
300 while (count--)
301 _ne_outw(*buf++, portp);
302 #if defined(CONFIG_PCMCIA) && defined(CONFIG_M32R_PCC)
303 } else if (port >= M32R_PCC_IOSTART0 && port <= M32R_PCC_IOEND0) {
304 pcc_iowrite(0, port, (void *)addr, sizeof(unsigned short),
305 count, 1);
306 } else if (port >= M32R_PCC_IOSTART1 && port <= M32R_PCC_IOEND1) {
307 pcc_iowrite(1, port, (void *)addr, sizeof(unsigned short),
308 count, 1);
309 #endif
310 } else {
311 portp = PORT2ADDR(port);
312 while (count--)
313 *(volatile unsigned short *)portp = *buf++;
314 }
315 }
316
_outsl(unsigned int port,const void * addr,unsigned long count)317 void _outsl(unsigned int port, const void *addr, unsigned long count)
318 {
319 const unsigned long *buf = addr;
320 unsigned char *portp;
321
322 portp = PORT2ADDR(port);
323 while (count--)
324 *(volatile unsigned long *)portp = *buf++;
325 }
326