From b5bc8fc8ab0227f3b78156f49bf6989ae995a83f Mon Sep 17 00:00:00 2001
From: =?UTF-8?q?Andreas=20F=C3=A4rber?= <andreas.faerber@web.de>
Date: Mon, 23 Aug 2010 19:11:46 +0000
Subject: [PATCH] pci: Add stub support for grackle (ppc)

A grackle-compatible Motorola MPC106 PCI controller can be found in the
PowerMac G3 (ticket #6247). For now just let the user know.


git-svn-id: file:///srv/svn/repos/haiku/haiku/trunk@38323 a95241bf-73f2-0310-859d-f6bbb57e9c96
---
 .../kernel/bus_managers/pci/arch/ppc/Jamfile  |  1 +
 .../pci/arch/ppc/openfirmware/grackle.cpp     | 78 +++++++++++++++++++
 .../ppc/openfirmware/pci_openfirmware.cpp     |  1 +
 .../ppc/openfirmware/pci_openfirmware_priv.h  |  2 +
 4 files changed, 82 insertions(+)
 create mode 100644 src/add-ons/kernel/bus_managers/pci/arch/ppc/openfirmware/grackle.cpp

diff --git a/src/add-ons/kernel/bus_managers/pci/arch/ppc/Jamfile b/src/add-ons/kernel/bus_managers/pci/arch/ppc/Jamfile
index 3e012e3845..99e04130f6 100644
--- a/src/add-ons/kernel/bus_managers/pci/arch/ppc/Jamfile
+++ b/src/add-ons/kernel/bus_managers/pci/arch/ppc/Jamfile
@@ -13,4 +13,5 @@ KernelStaticLibrary pci_arch_bus_manager :
 	# openfirmware
 	pci_openfirmware.cpp
 	uninorth.cpp
+	grackle.cpp
 ;
diff --git a/src/add-ons/kernel/bus_managers/pci/arch/ppc/openfirmware/grackle.cpp b/src/add-ons/kernel/bus_managers/pci/arch/ppc/openfirmware/grackle.cpp
new file mode 100644
index 0000000000..b1795b671e
--- /dev/null
+++ b/src/add-ons/kernel/bus_managers/pci/arch/ppc/openfirmware/grackle.cpp
@@ -0,0 +1,78 @@
+/*
+ * Copyright 2010 Andreas Färber <andreas.faerber@web.de>
+ * All rights reserved. Distributed under the terms of the MIT License.
+ */
+
+
+#include <KernelExport.h>
+
+#include <platform/openfirmware/devices.h>
+#include <platform/openfirmware/openfirmware.h>
+#include <platform/openfirmware/pci.h>
+
+#include "pci_controller.h"
+#include "pci_io.h"
+#include "pci_openfirmware_priv.h"
+
+
+static status_t
+grackle_read_pci_config(void *cookie, uint8 bus, uint8 device, uint8 function,
+	uint8 offset, uint8 size, uint32 *value)
+{
+	return B_ERROR;
+}
+
+
+static status_t
+grackle_write_pci_config(void *cookie, uint8 bus, uint8 device, uint8 function,
+	uint8 offset, uint8 size, uint32 value)
+{
+	return B_ERROR;
+}
+
+
+static status_t
+grackle_get_max_bus_devices(void *cookie, int32 *count)
+{
+	*count = 0;
+	return B_OK;
+}
+
+
+static status_t
+grackle_read_pci_irq(void *cookie, uint8 bus, uint8 device, uint8 function,
+	uint8 pin, uint8 *irq)
+{
+	return B_ERROR;
+}
+
+
+static status_t
+grackle_write_pci_irq(void *cookie, uint8 bus, uint8 device, uint8 function,
+	uint8 pin, uint8 irq)
+{
+	return B_ERROR;
+}
+
+
+static pci_controller sGracklePCIController = {
+	grackle_read_pci_config,
+	grackle_write_pci_config,
+	grackle_get_max_bus_devices,
+	grackle_read_pci_irq,
+	grackle_write_pci_irq,
+};
+
+
+status_t
+ppc_openfirmware_probe_grackle(int deviceNode,
+	const StringArrayPropertyValue &compatibleValue)
+{
+	if (!compatibleValue.ContainsElement("grackle"))
+		return B_ERROR;
+
+	panic("ppc_openfirmware_probe_grackle(): not implemented yet\n");
+
+	status_t error = pci_controller_add(&sGracklePCIController, NULL);
+	return error;
+}
diff --git a/src/add-ons/kernel/bus_managers/pci/arch/ppc/openfirmware/pci_openfirmware.cpp b/src/add-ons/kernel/bus_managers/pci/arch/ppc/openfirmware/pci_openfirmware.cpp
index 1e624a703a..4c361f68db 100644
--- a/src/add-ons/kernel/bus_managers/pci/arch/ppc/openfirmware/pci_openfirmware.cpp
+++ b/src/add-ons/kernel/bus_managers/pci/arch/ppc/openfirmware/pci_openfirmware.cpp
@@ -21,6 +21,7 @@ typedef status_t (*probeFunction)(int, const StringArrayPropertyValue&);
 
 static const probeFunction sProbeFunctions[] = {
 	ppc_openfirmware_probe_uninorth,
+	ppc_openfirmware_probe_grackle,
 	NULL,
 };
 
diff --git a/src/add-ons/kernel/bus_managers/pci/arch/ppc/openfirmware/pci_openfirmware_priv.h b/src/add-ons/kernel/bus_managers/pci/arch/ppc/openfirmware/pci_openfirmware_priv.h
index a32a959f82..10392a70d8 100644
--- a/src/add-ons/kernel/bus_managers/pci/arch/ppc/openfirmware/pci_openfirmware_priv.h
+++ b/src/add-ons/kernel/bus_managers/pci/arch/ppc/openfirmware/pci_openfirmware_priv.h
@@ -19,6 +19,8 @@ struct StringArrayPropertyValue;
 
 status_t	ppc_openfirmware_probe_uninorth(int deviceNode,
 				const StringArrayPropertyValue &compatibleValue);
+status_t	ppc_openfirmware_probe_grackle(int deviceNode,
+				const StringArrayPropertyValue &compatibleValue);
 
 
 // property support