gfx: Move drivers/generic/gfx to drivers/gfx/generic

This change creates gfx directory under drivers/ so that all drivers
handling gfx devices can be located in the same place. In follow-up
CLs, we will be adding another driver that handles gfx devices.

This change also updates the names used within the driver from
*generic_gfx* to *gfx_generic*. In addition to that, mainboard
drallion using this driver is updated to match the correct path and
Kconfig name.

TEST=Verified that drallion still builds.

Change-Id: I377743e0f6d770eed143c7b6041dab2a101e6252
Signed-off-by: Furquan Shaikh <furquan@google.com>
Reviewed-on: https://review.coreboot.org/c/coreboot/+/39047
Tested-by: build bot (Jenkins) <no-reply@coreboot.org>
Reviewed-by: Tim Wawrzynczak <twawrzynczak@chromium.org>
Reviewed-by: Mathew King <mathewk@chromium.org>

1 files changed, 56 insertions, 0 deletions

diff --git a/src/drivers/gfx/generic/chip.h b/src/drivers/gfx/generic/chip.h
new file mode 100644
index 0000000000..5e855e3853
--- /dev/null
+++ b/src/drivers/gfx/generic/chip.h
@@ -0,0 +1,56 @@
+/*
+ * This file is part of the coreboot project.
+ *
+ * Copyright 2019 Google LLC
+ *
+ * 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.
+ */
+
+#ifndef __DRIVERS_GFX_GENERIC_CHIP_H__
+#define __DRIVERS_GFX_GENERIC_CHIP_H__
+
+/* Config for electronic privacy screen */
+struct drivers_gfx_generic_privacy_screen_config {
+	/* Is privacy screen available on this graphics device */
+	int enabled;
+	/* ACPI namespace path to privacy screen detection function */
+	const char *detect_function;
+	/* ACPI namespace path to privacy screen status function */
+	const char *status_function;
+	/* ACPI namespace path to privacy screen enable function */
+	const char *enable_function;
+	/* ACPI namespace path to privacy screen disable function */
+	const char *disable_function;
+};
+
+/* Config for an output device as defined in section A.5 of the ACPI spec */
+struct drivers_gfx_generic_device_config {
+	/* ACPI device name of the output device */
+	const char *name;
+	/* The address of the output device. See section A.3.2 */
+	unsigned int addr;
+	/* Electronic privacy screen specific config */
+	struct drivers_gfx_generic_privacy_screen_config privacy;
+};
+
+/* Config for an ACPI video device defined in Appendix A of the ACPI spec */
+struct drivers_gfx_generic_config {
+	/*
+	 * ACPI device name of the graphics card, "GFX0" will be used if name is
+	 * not set
+	 */
+	const char *name;
+	/* The number of output devices defined */
+	int device_count;
+	/* Config for output devices */
+	struct drivers_gfx_generic_device_config device[5];
+};
+
+#endif /* __DRIVERS_GFX_GENERIC_CHIP_H__ */