X-Git-Url: http://git.onelab.eu/?a=blobdiff_plain;ds=sidebyside;f=include%2Fasm-powerpc%2Fhvconsole.h;fp=include%2Fasm-powerpc%2Fhvconsole.h;h=34daf7b9b62fe5d1b1944f62aa5ca27fa5640808;hb=64ba3f394c830ec48a1c31b53dcae312c56f1604;hp=35ea69e8121fdc38ebe878e885cc65b94f5a0b8d;hpb=be1e6109ac94a859551f8e1774eb9a8469fe055c;p=linux-2.6.git

diff --git a/include/asm-powerpc/hvconsole.h b/include/asm-powerpc/hvconsole.h
index 35ea69e81..34daf7b9b 100644
--- a/include/asm-powerpc/hvconsole.h
+++ b/include/asm-powerpc/hvconsole.h
@@ -24,18 +24,28 @@
 #ifdef __KERNEL__
 
 /*
- * PSeries firmware will only send/recv up to 16 bytes of character data per
- * hcall.
+ * This is the max number of console adapters that can/will be found as
+ * console devices on first stage console init.  Any number beyond this range
+ * can't be used as a console device but is still a valid tty device.
  */
-#define MAX_VIO_PUT_CHARS	16
-#define SIZE_VIO_GET_CHARS	16
+#define MAX_NR_HVC_CONSOLES	16
 
-/*
- * Vio firmware always attempts to fetch MAX_VIO_GET_CHARS chars.  The 'count'
- * parm is included to conform to put_chars() function pointer template
- */
+/* implemented by a low level driver */
+struct hv_ops {
+	int (*get_chars)(uint32_t vtermno, char *buf, int count);
+	int (*put_chars)(uint32_t vtermno, const char *buf, int count);
+};
 extern int hvc_get_chars(uint32_t vtermno, char *buf, int count);
 extern int hvc_put_chars(uint32_t vtermno, const char *buf, int count);
 
+struct hvc_struct;
+
+/* Register a vterm and a slot index for use as a console (console_init) */
+extern int hvc_instantiate(uint32_t vtermno, int index, struct hv_ops *ops);
+/* register a vterm for hvc tty operation (module_init or hotplug add) */
+extern struct hvc_struct * __devinit hvc_alloc(uint32_t vtermno, int irq,
+						 struct hv_ops *ops);
+/* remove a vterm from hvc tty operation (modele_exit or hotplug remove) */
+extern int __devexit hvc_remove(struct hvc_struct *hp);
 #endif /* __KERNEL__ */
 #endif /* _PPC64_HVCONSOLE_H */