This patch allows a custom vga driver that will give the flexibility to run
code after vga is initialized for tv-out. It is one of many patches to
come, including code to manipulate the graphics mmio registers, enable the
graphics i2c data lines, and tv encoder drivers.
Signed-off-by: Joseph Smith <[email protected]>
--
Thanks,
Joseph Smith
Set-Top-Linux
www.settoplinux.org
Index: src/northbridge/intel/i82830/Config.lb
===================================================================
--- src/northbridge/intel/i82830/Config.lb (revision 4242)
+++ src/northbridge/intel/i82830/Config.lb (working copy)
@@ -23,5 +23,6 @@
config chip.h
driver northbridge.o
+driver vga.o
default HAVE_HIGH_TABLES=1
Index: src/northbridge/intel/i82830/vga.c
===================================================================
--- src/northbridge/intel/i82830/vga.c (revision 0)
+++ src/northbridge/intel/i82830/vga.c (revision 0)
@@ -0,0 +1,50 @@
+/*
+ * This file is part of the coreboot project.
+ *
+ * Copyright (C) 2009 Joseph Smith <[email protected]>
+ *
+ * This program is free software; you can redistribute it and/or modify
+ * it under the terms of the GNU General Public License as published by
+ * the Free Software Foundation; either version 2 of the License, or
+ * (at your option) any later version.
+ *
+ * This program is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
+ * GNU General Public License for more details.
+ *
+ * You should have received a copy of the GNU General Public License
+ * along with this program; if not, write to the Free Software
+ * Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA
+ */
+
+#include <console/console.h>
+#include <arch/io.h>
+#include <stdint.h>
+#include <device/device.h>
+#include <device/pci.h>
+#include <device/pci_ids.h>
+
+static void vga_init(device_t dev) {
+
+ printk_info("Starting Graphics Initialization\n");
+ pci_dev_init(dev);
+ printk_info("Graphics Initialization Complete\n");
+ /* Future TV-OUT code will be called from here. */
+}
+
+static const struct device_operations vga_operations = {
+ .read_resources = pci_dev_read_resources,
+ .set_resources = pci_dev_set_resources,
+ .enable_resources = pci_dev_enable_resources,
+ .init = vga_init,
+ .scan_bus = 0,
+ .enable = 0,
+ .ops_pci = 0,
+};
+
+static const struct pci_driver vga_driver __pci_driver = {
+ .ops = &vga_operations,
+ .vendor = PCI_VENDOR_ID_INTEL,
+ .device = 0x3577,
+};
--
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