drivers/xgi/z9s: Port Linux framebuffer initialization to coreboot

Add native XGI Z9s framebuffer support to coreboot
XGI initialization code largely taken from Linux 3.18.5

TEST: Booted KFSN4-DRE with XGI Volari Z9s into SeaBIOS
with SeaVGABIOS enabled.  Text appeared correctly on screen
and interaction with graphical comboot menu was successful.
However, Linux cleared the framebuffer on boot, rendering the
screen useless until Linux loaded its native xgifb driver.

Change-Id: I606a3892849fc578b0c4d74536aec0a0adef3be3
Signed-off-by: Timothy Pearson <tpearson@raptorengineeringinc.com>
Reviewed-on: http://review.coreboot.org/8331
Tested-by: build bot (Jenkins)
Reviewed-by: Alexandru Gagniuc <mr.nuke.me@gmail.com>
Reviewed-by: Paul Menzel <paulepanter@users.sourceforge.net>

1 files changed, 153 insertions, 0 deletions

diff --git a/src/drivers/xgi/common/XGIfb.h b/src/drivers/xgi/common/XGIfb.h
new file mode 100644
index 0000000000..f05adc74e1
--- /dev/null
+++ b/src/drivers/xgi/common/XGIfb.h
@@ -0,0 +1,153 @@
+/*
+ * This file is part of the coreboot project.
+ *
+ * File taken verbatim from the Linux xgifb driver (v3.18.5)
+ *
+ * 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; version 2 of the License.
+ *
+ * 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
+ */
+
+#ifndef _LINUX_XGIFB
+#define _LINUX_XGIFB
+#include "vgatypes.h"
+#include "vb_struct.h"
+
+enum xgifb_display_type {
+	XGIFB_DISP_NONE = 0,
+	XGIFB_DISP_CRT,
+	XGIFB_DISP_LCD,
+	XGIFB_DISP_TV,
+};
+
+#define HASVB_NONE	    0x00
+#define HASVB_301	    0x01
+#define HASVB_LVDS	    0x02
+#define HASVB_TRUMPION	    0x04
+#define HASVB_LVDS_CHRONTEL 0x10
+#define HASVB_302	    0x20
+#define HASVB_CHRONTEL	    0x80
+
+enum XGI_CHIP_TYPE {
+	XG40 = 32,
+	XG42,
+	XG20 = 48,
+	XG21,
+	XG27,
+};
+
+enum xgi_tvtype {
+	TVMODE_NTSC = 0,
+	TVMODE_PAL,
+	TVMODE_HIVISION,
+	TVTYPE_PALM,
+	TVTYPE_PALN,
+	TVTYPE_NTSCJ,
+	TVMODE_TOTAL
+};
+
+enum xgi_tv_plug {
+	TVPLUG_UNKNOWN = 0,
+	TVPLUG_COMPOSITE = 1,
+	TVPLUG_SVIDEO = 2,
+	TVPLUG_COMPOSITE_AND_SVIDEO = 3,
+	TVPLUG_SCART = 4,
+	TVPLUG_YPBPR_525i = 5,
+	TVPLUG_YPBPR_525P = 6,
+	TVPLUG_YPBPR_750P = 7,
+	TVPLUG_YPBPR_1080i = 8,
+	TVPLUG_TOTAL
+};
+
+struct XGIfb_info {
+	unsigned long XGIfb_id;
+	int    chip_id;                 /* PCI ID of detected chip */
+	int    memory;                  /* video memory in KB which XGIfb manages */
+	int    heapstart;               /* heap start (= XGIfb "mem" argument) in KB */
+	unsigned char fbvidmode;        /* current XGIfb mode */
+
+	unsigned char XGIfb_version;
+	unsigned char XGIfb_revision;
+	unsigned char XGIfb_patchlevel;
+
+	unsigned char XGIfb_caps;       /* XGIfb capabilities */
+
+	int    XGIfb_tqlen;             /* turbo queue length (in KB) */
+
+	unsigned int XGIfb_pcibus;      /* The card's PCI ID */
+	unsigned int XGIfb_pcislot;
+	unsigned int XGIfb_pcifunc;
+
+	unsigned char XGIfb_lcdpdc;     /* PanelDelayCompensation */
+
+	unsigned char XGIfb_lcda;       /* Detected status of LCDA for low res/text modes */
+
+	char reserved[235];             /* for future use */
+};
+
+struct xgifb_video_info {
+	struct fb_info *fb_info;
+	struct xgi_hw_device_info hw_info;
+	struct vb_device_info dev_info;
+
+	int mode_idx;
+	int rate_idx;
+
+	u32 pseudo_palette[17];
+
+	int           chip_id;
+	unsigned int  video_size;
+	phys_addr_t   video_base;
+	void __iomem *video_vbase;
+	phys_addr_t   mmio_base;
+	unsigned long mmio_size;
+	void __iomem *mmio_vbase;
+	unsigned long vga_base;
+	int mtrr;
+
+	int    video_bpp;
+	int    video_cmap_len;
+	int    video_width;
+	int    video_height;
+	int    video_vwidth;
+	int    video_vheight;
+	int    org_x;
+	int    org_y;
+	int    video_linelength;
+	unsigned int refresh_rate;
+
+	enum xgifb_display_type display2; /* the second display output type */
+	bool display2_force;
+	unsigned char hasVB;
+	unsigned char TV_type;
+	unsigned char TV_plug;
+
+	struct XGI21_LVDSCapStruct lvds_data;
+
+	enum XGI_CHIP_TYPE chip;
+	unsigned char revision_id;
+
+	unsigned short DstColor;
+	unsigned long  XGI310_AccelDepth;
+	unsigned long  CommandReg;
+
+	unsigned int   pcibus;
+	unsigned int   pcislot;
+	unsigned int   pcifunc;
+
+	unsigned short subsysvendor;
+	unsigned short subsysdevice;
+
+	char reserved[236];
+};
+
+#endif