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>

4 files changed, 0 insertions, 192 deletions

diff --git a/src/drivers/generic/gfx/Kconfig b/src/drivers/generic/gfx/Kconfig
deleted file mode 100644
index 1152f5bb7d..0000000000
--- a/src/drivers/generic/gfx/Kconfig
+++ /dev/null
@@ -1,6 +0,0 @@
-config DRIVERS_GENERIC_GFX
-	bool
-	default n
-	depends on HAVE_ACPI_TABLES
-	help
-	  Include support for generic graphics device in devicetree
diff --git a/src/drivers/generic/gfx/Makefile.inc b/src/drivers/generic/gfx/Makefile.inc
deleted file mode 100644
index c31986be46..0000000000
--- a/src/drivers/generic/gfx/Makefile.inc
+++ /dev/null
@@ -1 +0,0 @@
-ramstage-$(CONFIG_DRIVERS_GENERIC_GFX) += gfx.c
diff --git a/src/drivers/generic/gfx/chip.h b/src/drivers/generic/gfx/chip.h
deleted file mode 100644
index ee5bd1ff88..0000000000
--- a/src/drivers/generic/gfx/chip.h
+++ /dev/null
@@ -1,56 +0,0 @@
-/*
- * 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_GENERIC_GFX_CHIP_H__
-#define __DRIVERS_GENERIC_GFX_CHIP_H__
-
-/* Config for electronic privacy screen */
-struct drivers_generic_gfx_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_generic_gfx_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_generic_gfx_privacy_screen_config privacy;
-};
-
-/* Config for an ACPI video device defined in Appendix A of the ACPI spec */
-struct drivers_generic_gfx_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_generic_gfx_device_config device[5];
-};
-
-#endif /* __DRIVERS_GENERIC_GFX_CHIP_H__ */
diff --git a/src/drivers/generic/gfx/gfx.c b/src/drivers/generic/gfx/gfx.c
deleted file mode 100644
index 0386e9b2ef..0000000000
--- a/src/drivers/generic/gfx/gfx.c
+++ /dev/null
@@ -1,129 +0,0 @@
-/*
- * 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.
- */
-
-#include <arch/acpigen.h>
-#include <console/console.h>
-#include <device/device.h>
-#include <device/pci.h>
-#include <device/pci_ids.h>
-#include <stdint.h>
-
-#include "chip.h"
-
-#define ACPI_DSM_PRIVACY_SCREEN_UUID	"C7033113-8720-4CEB-9090-9D52B3E52D73"
-
-static void privacy_screen_detect_cb(void *arg)
-{
-	struct drivers_generic_gfx_privacy_screen_config *config = arg;
-
-	acpigen_write_store();
-	acpigen_emit_namestring(config->detect_function);
-	acpigen_emit_byte(LOCAL2_OP);
-	acpigen_write_if_lequal_op_int(LOCAL2_OP, 1);
-	acpigen_write_return_singleton_buffer(0xF);
-	acpigen_pop_len();
-}
-static void privacy_screen_get_status_cb(void *arg)
-{
-	struct drivers_generic_gfx_privacy_screen_config *config = arg;
-
-	acpigen_emit_byte(RETURN_OP);
-	acpigen_emit_namestring(config->status_function);
-}
-static void privacy_screen_enable_cb(void *arg)
-{
-	struct drivers_generic_gfx_privacy_screen_config *config = arg;
-
-	acpigen_emit_namestring(config->enable_function);
-}
-static void privacy_screen_disable_cb(void *arg)
-{
-	struct drivers_generic_gfx_privacy_screen_config *config = arg;
-
-	acpigen_emit_namestring(config->disable_function);
-}
-
-static void (*privacy_screen_callbacks[])(void *) = {
-	privacy_screen_detect_cb,
-	privacy_screen_get_status_cb,
-	privacy_screen_enable_cb,
-	privacy_screen_disable_cb,
-};
-
-static void gfx_fill_ssdt_generator(struct device *dev)
-{
-	size_t i;
-	struct drivers_generic_gfx_config *config = dev->chip_info;
-
-	const char *scope = acpi_device_scope(dev);
-
-	if (!scope)
-		return;
-
-	acpigen_write_scope(scope);
-
-	/* Method (_DOD, 0) */
-	acpigen_write_method("_DOD", 0);
-	acpigen_emit_byte(RETURN_OP);
-	acpigen_write_package(config->device_count);
-	for (i = 0; i < config->device_count; i++)
-		acpigen_write_dword(config->device[i].addr);
-	acpigen_pop_len(); /* End Package. */
-	acpigen_pop_len(); /* End Method. */
-
-	for (i = 0; i < config->device_count; i++) {
-		acpigen_write_device(config->device[i].name);
-
-		acpigen_write_name_integer("_ADR", config->device[i].addr);
-		acpigen_write_name_integer("_STA", 0xF);
-
-		if (config->device[i].privacy.enabled) {
-			acpigen_write_dsm(ACPI_DSM_PRIVACY_SCREEN_UUID,
-				privacy_screen_callbacks,
-				ARRAY_SIZE(privacy_screen_callbacks),
-				&config->device[i].privacy);
-		}
-
-		acpigen_pop_len(); /* Device */
-	}
-	acpigen_pop_len(); /* Scope */
-}
-
-static const char *gfx_acpi_name(const struct device *dev)
-{
-	struct drivers_generic_gfx_config *config = dev->chip_info;
-
-	return config->name ? : "GFX0";
-}
-
-static struct device_operations gfx_ops = {
-	.acpi_name		  = gfx_acpi_name,
-	.acpi_fill_ssdt_generator = gfx_fill_ssdt_generator,
-};
-
-static void gfx_enable(struct device *dev)
-{
-	struct drivers_generic_gfx_config *config = dev->chip_info;
-
-	if (!config)
-		return;
-
-	dev->ops = &gfx_ops;
-}
-
-struct chip_operations drivers_generic_gfx_ops = {
-	CHIP_NAME("Graphics Device")
-	.enable_dev = gfx_enable
-};