From 687c8d8941bb62fdb4fbdbb0ff5f359851c290b5 Mon Sep 17 00:00:00 2001
From: Jakob Bornecrantz <jakob@tungstengraphics.com>
Date: Mon, 7 Jul 2008 14:29:11 +0200
Subject: i915: Fetch the real deviceID for EGL

---
 src/gallium/winsys/egl_drm/intel/intel_egl.c    | 30 +++++++++++++++++++++++--
 src/gallium/winsys/egl_drm/intel/intel_egl.h    |  5 +++++
 src/gallium/winsys/egl_drm/intel/intel_screen.c |  3 +--
 3 files changed, 34 insertions(+), 4 deletions(-)

diff --git a/src/gallium/winsys/egl_drm/intel/intel_egl.c b/src/gallium/winsys/egl_drm/intel/intel_egl.c
index 9e12a024eb..ed96703e37 100644
--- a/src/gallium/winsys/egl_drm/intel/intel_egl.c
+++ b/src/gallium/winsys/egl_drm/intel/intel_egl.c
@@ -13,6 +13,7 @@
 #include "eglmode.h"
 #include "eglscreen.h"
 #include "eglsurface.h"
+#include "egllog.h"
 
 #include "intel_egl.h"
 
@@ -23,15 +24,38 @@
 
 #include "state_tracker/st_public.h"
 
-struct egl_drm_device* egl_drm_create_device(int drmFD);
+static void
+drm_get_device_id(struct egl_drm_device *device)
+{
+	char path[512];
+	FILE *file;
+
+	/* TODO get the real minor */
+	int minor = 0;
+
+	snprintf(path, sizeof(path), "/sys/class/drm/card%d/device/device", minor);
+	file = fopen(path, "r");
+	if (!file) {
+		_eglLog(_EGL_WARNING, "Could not retrive device ID\n");
+		return;
+	}
 
-struct egl_drm_device*
+	fgets(path, sizeof( path ), file);
+	sscanf(path, "%x", &device->deviceID);
+	fclose(file);
+}
+
+static struct egl_drm_device*
 egl_drm_create_device(int drmFD)
 {
 	struct egl_drm_device *device = malloc(sizeof(*device));
 	memset(device, 0, sizeof(*device));
 	device->drmFD = drmFD;
 
+	device->version = drmGetVersion(device->drmFD);
+
+	drm_get_device_id(device);
+
 	if (!intel_create_device(device)) {
 		free(device);
 		return NULL;
@@ -105,6 +129,7 @@ drm_add_modes_from_connector(_EGLScreen *screen, drmModeConnectorPtr connector)
 	}
 }
 
+
 static EGLBoolean
 drm_initialize(_EGLDriver *drv, EGLDisplay dpy, EGLint *major, EGLint *minor)
 {
@@ -183,6 +208,7 @@ drm_terminate(_EGLDriver *drv, EGLDisplay dpy)
 	struct drm_driver *drm_drv = (struct drm_driver *)drv;
 
 	intel_destroy_device(drm_drv->device);
+	drmFreeVersion(drm_drv->device->version);
 
 	drmClose(drm_drv->device->drmFD);
 
diff --git a/src/gallium/winsys/egl_drm/intel/intel_egl.h b/src/gallium/winsys/egl_drm/intel/intel_egl.h
index 84b6c212bf..1ee27e0847 100644
--- a/src/gallium/winsys/egl_drm/intel/intel_egl.h
+++ b/src/gallium/winsys/egl_drm/intel/intel_egl.h
@@ -2,10 +2,15 @@
 #ifndef _INTEL_EGL_H_
 #define _INTEL_EGL_H_
 
+#include <xf86drm.h>
+
 struct egl_drm_device
 {
 	void *priv;
 	int drmFD;
+
+	drmVersionPtr version;
+	int deviceID;
 };
 
 struct egl_drm_context
diff --git a/src/gallium/winsys/egl_drm/intel/intel_screen.c b/src/gallium/winsys/egl_drm/intel/intel_screen.c
index 12f605e0be..8e6d184440 100644
--- a/src/gallium/winsys/egl_drm/intel/intel_screen.c
+++ b/src/gallium/winsys/egl_drm/intel/intel_screen.c
@@ -53,8 +53,7 @@ intel_create_device(struct egl_drm_device *device)
 	device->priv = (void *)intel_screen;
 	intel_screen->device = device;
 
-	/** TODO JB: ugly hack */
-	intel_screen->deviceID = PCI_CHIP_I945_GM;
+	intel_screen->deviceID = device->deviceID;
 
 	intel_be_init_device(&intel_screen->base, device->drmFD, PCI_CHIP_I945_GM);
 
-- 
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