diff options
Diffstat (limited to 'include/asm-powerpc')
-rw-r--r-- | include/asm-powerpc/hvconsole.h | 26 |
1 files changed, 8 insertions, 18 deletions
diff --git a/include/asm-powerpc/hvconsole.h b/include/asm-powerpc/hvconsole.h index 34daf7b9b62f..35ea69e8121f 100644 --- a/include/asm-powerpc/hvconsole.h +++ b/include/asm-powerpc/hvconsole.h | |||
@@ -24,28 +24,18 @@ | |||
24 | #ifdef __KERNEL__ | 24 | #ifdef __KERNEL__ |
25 | 25 | ||
26 | /* | 26 | /* |
27 | * This is the max number of console adapters that can/will be found as | 27 | * PSeries firmware will only send/recv up to 16 bytes of character data per |
28 | * console devices on first stage console init. Any number beyond this range | 28 | * hcall. |
29 | * can't be used as a console device but is still a valid tty device. | ||
30 | */ | 29 | */ |
31 | #define MAX_NR_HVC_CONSOLES 16 | 30 | #define MAX_VIO_PUT_CHARS 16 |
31 | #define SIZE_VIO_GET_CHARS 16 | ||
32 | 32 | ||
33 | /* implemented by a low level driver */ | 33 | /* |
34 | struct hv_ops { | 34 | * Vio firmware always attempts to fetch MAX_VIO_GET_CHARS chars. The 'count' |
35 | int (*get_chars)(uint32_t vtermno, char *buf, int count); | 35 | * parm is included to conform to put_chars() function pointer template |
36 | int (*put_chars)(uint32_t vtermno, const char *buf, int count); | 36 | */ |
37 | }; | ||
38 | extern int hvc_get_chars(uint32_t vtermno, char *buf, int count); | 37 | extern int hvc_get_chars(uint32_t vtermno, char *buf, int count); |
39 | extern int hvc_put_chars(uint32_t vtermno, const char *buf, int count); | 38 | extern int hvc_put_chars(uint32_t vtermno, const char *buf, int count); |
40 | 39 | ||
41 | struct hvc_struct; | ||
42 | |||
43 | /* Register a vterm and a slot index for use as a console (console_init) */ | ||
44 | extern int hvc_instantiate(uint32_t vtermno, int index, struct hv_ops *ops); | ||
45 | /* register a vterm for hvc tty operation (module_init or hotplug add) */ | ||
46 | extern struct hvc_struct * __devinit hvc_alloc(uint32_t vtermno, int irq, | ||
47 | struct hv_ops *ops); | ||
48 | /* remove a vterm from hvc tty operation (modele_exit or hotplug remove) */ | ||
49 | extern int __devexit hvc_remove(struct hvc_struct *hp); | ||
50 | #endif /* __KERNEL__ */ | 40 | #endif /* __KERNEL__ */ |
51 | #endif /* _PPC64_HVCONSOLE_H */ | 41 | #endif /* _PPC64_HVCONSOLE_H */ |