Linux-2.6.12-rc2v2.6.12-rc2

Initial git repository build. I'm not bothering with the full history,
even though we have it. We can create a separate "historical" git
archive of that later if we want to, and in the meantime it's about
3.2GB when imported into git - space that would just make the early
git days unnecessarily complicated, when we don't have a lot of good
infrastructure for it.

Let it rip!

1 files changed, 220 insertions, 0 deletions

diff --git a/arch/sparc/prom/console.c b/arch/sparc/prom/console.c
new file mode 100644
index 000000000000..4e6e41d3291d
--- /dev/null
+++ b/arch/sparc/prom/console.c
@@ -0,0 +1,220 @@
+/* $Id: console.c,v 1.25 2001/10/30 04:54:22 davem Exp $
+ * console.c: Routines that deal with sending and receiving IO
+ *            to/from the current console device using the PROM.
+ *
+ * Copyright (C) 1995 David S. Miller (davem@caip.rutgers.edu)
+ * Copyright (C) 1998 Pete Zaitcev <zaitcev@yahoo.com>
+ */
+
+#include <linux/types.h>
+#include <linux/kernel.h>
+#include <linux/sched.h>
+#include <asm/openprom.h>
+#include <asm/sun4prom.h>
+#include <asm/oplib.h>
+#include <asm/system.h>
+#include <linux/string.h>
+
+extern void restore_current(void);
+
+static char con_name_jmc[] = "/obio/su@"; /* "/obio/su@0,3002f8"; */
+#define CON_SIZE_JMC    (sizeof(con_name_jmc))
+
+/* Non blocking get character from console input device, returns -1
+ * if no input was taken.  This can be used for polling.
+ */
+int
+prom_nbgetchar(void)
+{
+        static char inc;
+        int i = -1;
+        unsigned long flags;
+
+        spin_lock_irqsave(&prom_lock, flags);
+        switch(prom_vers) {
+        case PROM_V0:
+        case PROM_SUN4:
+                i = (*(romvec->pv_nbgetchar))();
+                break;
+        case PROM_V2:
+        case PROM_V3:
+                if( (*(romvec->pv_v2devops).v2_dev_read)(*romvec->pv_v2bootargs.fd_stdin , &inc, 0x1) == 1) {
+                        i = inc;
+                } else {
+                        i = -1;
+                }
+                break;
+        default:
+                i = -1;
+                break;
+        };
+        restore_current();
+        spin_unlock_irqrestore(&prom_lock, flags);
+        return i; /* Ugh, we could spin forever on unsupported proms ;( */
+}
+
+/* Non blocking put character to console device, returns -1 if
+ * unsuccessful.
+ */
+int
+prom_nbputchar(char c)
+{
+        static char outc;
+        unsigned long flags;
+        int i = -1;
+
+        spin_lock_irqsave(&prom_lock, flags);
+        switch(prom_vers) {
+        case PROM_V0:
+        case PROM_SUN4:
+                i = (*(romvec->pv_nbputchar))(c);
+                break;
+        case PROM_V2:
+        case PROM_V3:
+                outc = c;
+                if( (*(romvec->pv_v2devops).v2_dev_write)(*romvec->pv_v2bootargs.fd_stdout, &outc, 0x1) == 1)
+                        i = 0;
+                else
+                        i = -1;
+                break;
+        default:
+                i = -1;
+                break;
+        };
+        restore_current();
+        spin_unlock_irqrestore(&prom_lock, flags);
+        return i; /* Ugh, we could spin forever on unsupported proms ;( */
+}
+
+/* Blocking version of get character routine above. */
+char
+prom_getchar(void)
+{
+        int character;
+        while((character = prom_nbgetchar()) == -1) ;
+        return (char) character;
+}
+
+/* Blocking version of put character routine above. */
+void
+prom_putchar(char c)
+{
+        while(prom_nbputchar(c) == -1) ;
+        return;
+}
+
+/* Query for input device type */
+enum prom_input_device
+prom_query_input_device(void)
+{
+        unsigned long flags;
+        int st_p;
+        char propb[64];
+        char *p;
+        int propl;
+
+        switch(prom_vers) {
+        case PROM_V0:
+        case PROM_V2:
+        case PROM_SUN4:
+        default:
+                switch(*romvec->pv_stdin) {
+                case PROMDEV_KBD:       return PROMDEV_IKBD;
+                case PROMDEV_TTYA:      return PROMDEV_ITTYA;
+                case PROMDEV_TTYB:      return PROMDEV_ITTYB;
+                default:
+                        return PROMDEV_I_UNK;
+                };
+        case PROM_V3:
+                spin_lock_irqsave(&prom_lock, flags);
+                st_p = (*romvec->pv_v2devops.v2_inst2pkg)(*romvec->pv_v2bootargs.fd_stdin);
+                restore_current();
+                spin_unlock_irqrestore(&prom_lock, flags);
+                if(prom_node_has_property(st_p, "keyboard"))
+                        return PROMDEV_IKBD;
+                if (prom_getproperty(st_p, "name", propb, sizeof(propb)) != -1) {
+                        if(strncmp(propb, "keyboard", sizeof("serial")) == 0)
+                                return PROMDEV_IKBD;
+                }
+                if (prom_getproperty(st_p, "device_type", propb, sizeof(propb)) != -1) {
+                if(strncmp(propb, "serial", sizeof("serial")))
+                        return PROMDEV_I_UNK;
+                }
+                propl = prom_getproperty(prom_root_node, "stdin-path", propb, sizeof(propb));
+                if(propl > 2) {
+                        p = propb;
+                        while(*p) p++; p -= 2;
+                        if(p[0] == ':') {
+                                if(p[1] == 'a')
+                                        return PROMDEV_ITTYA;
+                                else if(p[1] == 'b')
+                                        return PROMDEV_ITTYB;
+                        }
+                }
+                return PROMDEV_I_UNK;
+        }
+}
+
+/* Query for output device type */
+
+enum prom_output_device
+prom_query_output_device(void)
+{
+        unsigned long flags;
+        int st_p;
+        char propb[64];
+        char *p;
+        int propl;
+
+        switch(prom_vers) {
+        case PROM_V0:
+        case PROM_SUN4:
+                switch(*romvec->pv_stdin) {
+                case PROMDEV_SCREEN:    return PROMDEV_OSCREEN;
+                case PROMDEV_TTYA:      return PROMDEV_OTTYA;
+                case PROMDEV_TTYB:      return PROMDEV_OTTYB;
+                };
+                break;
+        case PROM_V2:
+        case PROM_V3:
+                spin_lock_irqsave(&prom_lock, flags);
+                st_p = (*romvec->pv_v2devops.v2_inst2pkg)(*romvec->pv_v2bootargs.fd_stdout);
+                restore_current();
+                spin_unlock_irqrestore(&prom_lock, flags);
+                propl = prom_getproperty(st_p, "device_type", propb, sizeof(propb));
+                if (propl == sizeof("display") &&
+                        strncmp("display", propb, sizeof("display")) == 0)
+                {
+                        return PROMDEV_OSCREEN;
+                }
+                if(prom_vers == PROM_V3) {
+                        if(propl >= 0 &&
+                            strncmp("serial", propb, sizeof("serial")) != 0)
+                                return PROMDEV_O_UNK;
+                        propl = prom_getproperty(prom_root_node, "stdout-path",
+                                                 propb, sizeof(propb));
+                        if(propl == CON_SIZE_JMC &&
+                            strncmp(propb, con_name_jmc, CON_SIZE_JMC) == 0)
+                                return PROMDEV_OTTYA;
+                        if(propl > 2) {
+                                p = propb;
+                                while(*p) p++; p-= 2;
+                                if(p[0]==':') {
+                                        if(p[1] == 'a')
+                                                return PROMDEV_OTTYA;
+                                        else if(p[1] == 'b')
+                                                return PROMDEV_OTTYB;
+                                }
+                        }
+                } else {
+                        switch(*romvec->pv_stdin) {
+                        case PROMDEV_TTYA:      return PROMDEV_OTTYA;
+                        case PROMDEV_TTYB:      return PROMDEV_OTTYB;
+                        };
+                }
+                break;
+        default:
+                ;
+        };
+        return PROMDEV_O_UNK;
+}