Yoshinori Sato | d2a5f49 | 2015-05-11 02:20:06 +0900 | [diff] [blame] | 1 | #ifndef _H8300_IO_H |
| 2 | #define _H8300_IO_H |
| 3 | |
| 4 | #ifdef __KERNEL__ |
| 5 | |
| 6 | #include <asm-generic/io.h> |
| 7 | |
| 8 | /* H8/300 internal I/O functions */ |
| 9 | static inline unsigned char ctrl_inb(unsigned long addr) |
| 10 | { |
| 11 | return *(volatile unsigned char *)addr; |
| 12 | } |
| 13 | |
| 14 | static inline unsigned short ctrl_inw(unsigned long addr) |
| 15 | { |
| 16 | return *(volatile unsigned short *)addr; |
| 17 | } |
| 18 | |
| 19 | static inline unsigned long ctrl_inl(unsigned long addr) |
| 20 | { |
| 21 | return *(volatile unsigned long *)addr; |
| 22 | } |
| 23 | |
| 24 | static inline void ctrl_outb(unsigned char b, unsigned long addr) |
| 25 | { |
| 26 | *(volatile unsigned char *)addr = b; |
| 27 | } |
| 28 | |
| 29 | static inline void ctrl_outw(unsigned short b, unsigned long addr) |
| 30 | { |
| 31 | *(volatile unsigned short *)addr = b; |
| 32 | } |
| 33 | |
| 34 | static inline void ctrl_outl(unsigned long b, unsigned long addr) |
| 35 | { |
| 36 | *(volatile unsigned long *)addr = b; |
| 37 | } |
| 38 | |
Yoshinori Sato | a795239 | 2015-06-12 17:57:24 +0900 | [diff] [blame] | 39 | static inline void ctrl_bclr(int b, unsigned char *addr) |
Yoshinori Sato | d2a5f49 | 2015-05-11 02:20:06 +0900 | [diff] [blame] | 40 | { |
| 41 | if (__builtin_constant_p(b)) |
Yoshinori Sato | a795239 | 2015-06-12 17:57:24 +0900 | [diff] [blame] | 42 | __asm__("bclr %1,%0" : "+WU"(*addr): "i"(b)); |
Yoshinori Sato | d2a5f49 | 2015-05-11 02:20:06 +0900 | [diff] [blame] | 43 | else |
Yoshinori Sato | a795239 | 2015-06-12 17:57:24 +0900 | [diff] [blame] | 44 | __asm__("bclr %w1,%0" : "+WU"(*addr): "r"(b)); |
Yoshinori Sato | d2a5f49 | 2015-05-11 02:20:06 +0900 | [diff] [blame] | 45 | } |
| 46 | |
Yoshinori Sato | a795239 | 2015-06-12 17:57:24 +0900 | [diff] [blame] | 47 | static inline void ctrl_bset(int b, unsigned char *addr) |
Yoshinori Sato | d2a5f49 | 2015-05-11 02:20:06 +0900 | [diff] [blame] | 48 | { |
| 49 | if (__builtin_constant_p(b)) |
Yoshinori Sato | a795239 | 2015-06-12 17:57:24 +0900 | [diff] [blame] | 50 | __asm__("bset %1,%0" : "+WU"(*addr): "i"(b)); |
Yoshinori Sato | d2a5f49 | 2015-05-11 02:20:06 +0900 | [diff] [blame] | 51 | else |
Yoshinori Sato | a795239 | 2015-06-12 17:57:24 +0900 | [diff] [blame] | 52 | __asm__("bset %w1,%0" : "+WU"(*addr): "r"(b)); |
Yoshinori Sato | d2a5f49 | 2015-05-11 02:20:06 +0900 | [diff] [blame] | 53 | } |
| 54 | |
| 55 | #endif /* __KERNEL__ */ |
| 56 | |
| 57 | #endif /* _H8300_IO_H */ |