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authorDaniel Baumann <daniel.baumann@progress-linux.org>2024-04-07 18:49:45 +0000
committerDaniel Baumann <daniel.baumann@progress-linux.org>2024-04-07 18:49:45 +0000
commit2c3c1048746a4622d8c89a29670120dc8fab93c4 (patch)
tree848558de17fb3008cdf4d861b01ac7781903ce39 /drivers/pci/hotplug/rpaphp.h
parentInitial commit. (diff)
downloadlinux-2c3c1048746a4622d8c89a29670120dc8fab93c4.tar.xz
linux-2c3c1048746a4622d8c89a29670120dc8fab93c4.zip
Adding upstream version 6.1.76.upstream/6.1.76
Signed-off-by: Daniel Baumann <daniel.baumann@progress-linux.org>
Diffstat (limited to 'drivers/pci/hotplug/rpaphp.h')
-rw-r--r--drivers/pci/hotplug/rpaphp.h99
1 files changed, 99 insertions, 0 deletions
diff --git a/drivers/pci/hotplug/rpaphp.h b/drivers/pci/hotplug/rpaphp.h
new file mode 100644
index 000000000..bdc954d70
--- /dev/null
+++ b/drivers/pci/hotplug/rpaphp.h
@@ -0,0 +1,99 @@
+/* SPDX-License-Identifier: GPL-2.0+ */
+/*
+ * PCI Hot Plug Controller Driver for RPA-compliant PPC64 platform.
+ *
+ * Copyright (C) 2003 Linda Xie <lxie@us.ibm.com>
+ *
+ * All rights reserved.
+ *
+ * Send feedback to <lxie@us.ibm.com>,
+ *
+ */
+
+#ifndef _PPC64PHP_H
+#define _PPC64PHP_H
+
+#include <linux/pci.h>
+#include <linux/pci_hotplug.h>
+
+#define DR_INDICATOR 9002
+#define DR_ENTITY_SENSE 9003
+
+#define POWER_ON 100
+#define POWER_OFF 0
+
+#define LED_OFF 0
+#define LED_ON 1 /* continuous on */
+#define LED_ID 2 /* slow blinking */
+#define LED_ACTION 3 /* fast blinking */
+
+/* Sensor values from rtas_get-sensor */
+#define EMPTY 0 /* No card in slot */
+#define PRESENT 1 /* Card in slot */
+
+#define MY_NAME "rpaphp"
+extern bool rpaphp_debug;
+#define dbg(format, arg...) \
+ do { \
+ if (rpaphp_debug) \
+ printk(KERN_DEBUG "%s: " format, \
+ MY_NAME, ## arg); \
+ } while (0)
+#define err(format, arg...) printk(KERN_ERR "%s: " format, MY_NAME, ## arg)
+#define info(format, arg...) printk(KERN_INFO "%s: " format, MY_NAME, ## arg)
+#define warn(format, arg...) printk(KERN_WARNING "%s: " format, MY_NAME, ## arg)
+
+/* slot states */
+
+#define NOT_VALID 3
+#define NOT_CONFIGURED 2
+#define CONFIGURED 1
+#define EMPTY 0
+
+/* DRC constants */
+
+#define MAX_DRC_NAME_LEN 64
+
+/*
+ * struct slot - slot information for each *physical* slot
+ */
+struct slot {
+ struct list_head rpaphp_slot_list;
+ int state;
+ u32 index;
+ u32 type;
+ u32 power_domain;
+ u8 attention_status;
+ char *name;
+ struct device_node *dn;
+ struct pci_bus *bus;
+ struct list_head *pci_devs;
+ struct hotplug_slot hotplug_slot;
+};
+
+extern const struct hotplug_slot_ops rpaphp_hotplug_slot_ops;
+extern struct list_head rpaphp_slot_head;
+
+static inline struct slot *to_slot(struct hotplug_slot *hotplug_slot)
+{
+ return container_of(hotplug_slot, struct slot, hotplug_slot);
+}
+
+/* function prototypes */
+
+/* rpaphp_pci.c */
+int rpaphp_enable_slot(struct slot *slot);
+int rpaphp_get_sensor_state(struct slot *slot, int *state);
+
+/* rpaphp_core.c */
+int rpaphp_add_slot(struct device_node *dn);
+int rpaphp_check_drc_props(struct device_node *dn, char *drc_name,
+ char *drc_type);
+
+/* rpaphp_slot.c */
+void dealloc_slot_struct(struct slot *slot);
+struct slot *alloc_slot_struct(struct device_node *dn, int drc_index, char *drc_name, int power_domain);
+int rpaphp_register_slot(struct slot *slot);
+int rpaphp_deregister_slot(struct slot *slot);
+
+#endif /* _PPC64PHP_H */