Linux-2.6.12-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!
diff --git a/arch/sparc/prom/console.c b/arch/sparc/prom/console.c
new file mode 100644
index 0000000..4e6e41d
--- /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;
+}