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authorDavid Dawes <dawes@xfree86.org>2002-01-27 18:23:04 +0000
committerDavid Dawes <dawes@xfree86.org>2002-01-27 18:23:04 +0000
commit16bd14926e02e4dbc6e74689bdb3eb90f30a0233 (patch)
tree9d7cb6b98165c9e2a9091c41a39acca11d6fa162 /bsd/drm_init.h
parentf18a6d836b5e0081dff9217b44e88e74c421c576 (diff)
Initial revision
Diffstat (limited to 'bsd/drm_init.h')
-rw-r--r--bsd/drm_init.h110
1 files changed, 110 insertions, 0 deletions
diff --git a/bsd/drm_init.h b/bsd/drm_init.h
new file mode 100644
index 00000000..e2ab6080
--- /dev/null
+++ b/bsd/drm_init.h
@@ -0,0 +1,110 @@
+/* drm_init.h -- Setup/Cleanup for DRM -*- linux-c -*-
+ * Created: Mon Jan 4 08:58:31 1999 by faith@valinux.com
+ *
+ * Copyright 1999 Precision Insight, Inc., Cedar Park, Texas.
+ * Copyright 2000 VA Linux Systems, Inc., Sunnyvale, California.
+ * All Rights Reserved.
+ *
+ * Permission is hereby granted, free of charge, to any person obtaining a
+ * copy of this software and associated documentation files (the "Software"),
+ * to deal in the Software without restriction, including without limitation
+ * the rights to use, copy, modify, merge, publish, distribute, sublicense,
+ * and/or sell copies of the Software, and to permit persons to whom the
+ * Software is furnished to do so, subject to the following conditions:
+ *
+ * The above copyright notice and this permission notice (including the next
+ * paragraph) shall be included in all copies or substantial portions of the
+ * Software.
+ *
+ * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
+ * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
+ * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL
+ * VA LINUX SYSTEMS AND/OR ITS SUPPLIERS BE LIABLE FOR ANY CLAIM, DAMAGES OR
+ * OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE,
+ * ARISING FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR
+ * OTHER DEALINGS IN THE SOFTWARE.
+ *
+ * Authors:
+ * Rickard E. (Rik) Faith <faith@valinux.com>
+ * Gareth Hughes <gareth@valinux.com>
+ */
+
+#define __NO_VERSION__
+#include "drmP.h"
+
+#if 0 && DRM_DEBUG_CODE
+int DRM(flags) = DRM_FLAG_DEBUG;
+#else
+int DRM(flags) = 0;
+#endif
+
+/* drm_parse_option parses a single option. See description for
+ * drm_parse_options for details.
+ */
+static void DRM(parse_option)(char *s)
+{
+ char *c, *r;
+
+ DRM_DEBUG("\"%s\"\n", s);
+ if (!s || !*s) return;
+ for (c = s; *c && *c != ':'; c++); /* find : or \0 */
+ if (*c) r = c + 1; else r = NULL; /* remember remainder */
+ *c = '\0'; /* terminate */
+ if (!strcmp(s, "noctx")) {
+ DRM(flags) |= DRM_FLAG_NOCTX;
+ DRM_INFO("Server-mediated context switching OFF\n");
+ return;
+ }
+ if (!strcmp(s, "debug")) {
+ DRM(flags) |= DRM_FLAG_DEBUG;
+ DRM_INFO("Debug messages ON\n");
+ return;
+ }
+ DRM_ERROR("\"%s\" is not a valid option\n", s);
+ return;
+}
+
+/* drm_parse_options parse the insmod "drm_opts=" options, or the command-line
+ * options passed to the kernel via LILO. The grammar of the format is as
+ * follows:
+ *
+ * drm ::= 'drm_opts=' option_list
+ * option_list ::= option [ ';' option_list ]
+ * option ::= 'device:' major
+ * | 'debug'
+ * | 'noctx'
+ * major ::= INTEGER
+ *
+ * Note that 's' contains option_list without the 'drm_opts=' part.
+ *
+ * device=major,minor specifies the device number used for /dev/drm
+ * if major == 0 then the misc device is used
+ * if major == 0 and minor == 0 then dynamic misc allocation is used
+ * debug=on specifies that debugging messages will be printk'd
+ * debug=trace specifies that each function call will be logged via printk
+ * debug=off turns off all debugging options
+ *
+ */
+
+void DRM(parse_options)(char *s)
+{
+ char *h, *t, *n;
+
+ DRM_DEBUG("\"%s\"\n", s ?: "");
+ if (!s || !*s) return;
+
+ for (h = t = n = s; h && *h; h = n) {
+ for (; *t && *t != ';'; t++); /* find ; or \0 */
+ if (*t) n = t + 1; else n = NULL; /* remember next */
+ *t = '\0'; /* terminate */
+ DRM(parse_option)(h); /* parse */
+ }
+}
+
+/* drm_cpu_valid returns non-zero if the DRI will run on this CPU, and 0
+ * otherwise.
+ */
+int DRM(cpu_valid)(void)
+{
+ return 1;
+}