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authorRyan S. Arnold <rsa@us.ibm.com>2006-03-27 21:25:16 +0200
committerPaul Mackerras <paulus@samba.org>2006-03-28 16:45:26 +1100
commit45d607ed92695d7543f5e1fc5b133cd69834e3e4 (patch)
treec82b6ae1f9b9827894021797a85cbcbe6efca08e /include/asm-powerpc/hvconsole.h
parent11089f08d9dd8b89cd07d6f126ccb4849e3c61a3 (diff)
downloadop-kernel-dev-45d607ed92695d7543f5e1fc5b133cd69834e3e4.zip
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[PATCH] powerpc: hvc_console updates
These are some updates from both Ryan and Arnd for the hvc_console driver: The main point is to enable the inclusion of a console driver for rtas, which is currrently needed for the cell platform. Also shuffle around some data-type declarations and moves some functions out of include/asm-ppc64/hvconsole.h and into a new drivers/char/hvc_console.h file. Signed-off-by: "Ryan S. Arnold" <rsa@us.ibm.com> Signed-off-by: Arnd Bergmann <abergman@de.ibm.com> Signed-off-by: Paul Mackerras <paulus@samba.org>
Diffstat (limited to 'include/asm-powerpc/hvconsole.h')
-rw-r--r--include/asm-powerpc/hvconsole.h26
1 files changed, 8 insertions, 18 deletions
diff --git a/include/asm-powerpc/hvconsole.h b/include/asm-powerpc/hvconsole.h
index 34daf7b..35ea69e 100644
--- a/include/asm-powerpc/hvconsole.h
+++ b/include/asm-powerpc/hvconsole.h
@@ -24,28 +24,18 @@
#ifdef __KERNEL__
/*
- * 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.
+ * PSeries firmware will only send/recv up to 16 bytes of character data per
+ * hcall.
*/
-#define MAX_NR_HVC_CONSOLES 16
+#define MAX_VIO_PUT_CHARS 16
+#define SIZE_VIO_GET_CHARS 16
-/* 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);
-};
+/*
+ * Vio firmware always attempts to fetch MAX_VIO_GET_CHARS chars. The 'count'
+ * parm is included to conform to put_chars() function pointer template
+ */
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 */
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