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path: root/drivers/pci/hotplug/cpci_hotplug.h
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Diffstat (limited to 'drivers/pci/hotplug/cpci_hotplug.h')
-rw-r--r--drivers/pci/hotplug/cpci_hotplug.h104
1 files changed, 104 insertions, 0 deletions
diff --git a/drivers/pci/hotplug/cpci_hotplug.h b/drivers/pci/hotplug/cpci_hotplug.h
new file mode 100644
index 000000000..3fdd1b9bd
--- /dev/null
+++ b/drivers/pci/hotplug/cpci_hotplug.h
@@ -0,0 +1,104 @@
+/* SPDX-License-Identifier: GPL-2.0+ */
+/*
+ * CompactPCI Hot Plug Core Functions
+ *
+ * Copyright (C) 2002 SOMA Networks, Inc.
+ * Copyright (C) 2001 Greg Kroah-Hartman (greg@kroah.com)
+ * Copyright (C) 2001 IBM Corp.
+ *
+ * All rights reserved.
+ *
+ * Send feedback to <scottm@somanetworks.com>
+ */
+
+#ifndef _CPCI_HOTPLUG_H
+#define _CPCI_HOTPLUG_H
+
+#include <linux/types.h>
+#include <linux/pci.h>
+#include <linux/pci_hotplug.h>
+
+/* PICMG 2.1 R2.0 HS CSR bits: */
+#define HS_CSR_INS 0x0080
+#define HS_CSR_EXT 0x0040
+#define HS_CSR_PI 0x0030
+#define HS_CSR_LOO 0x0008
+#define HS_CSR_PIE 0x0004
+#define HS_CSR_EIM 0x0002
+#define HS_CSR_DHA 0x0001
+
+struct slot {
+ u8 number;
+ unsigned int devfn;
+ struct pci_bus *bus;
+ struct pci_dev *dev;
+ unsigned int latch_status:1;
+ unsigned int adapter_status:1;
+ unsigned int extracting;
+ struct hotplug_slot hotplug_slot;
+ struct list_head slot_list;
+};
+
+struct cpci_hp_controller_ops {
+ int (*query_enum)(void);
+ int (*enable_irq)(void);
+ int (*disable_irq)(void);
+ int (*check_irq)(void *dev_id);
+ int (*hardware_test)(struct slot *slot, u32 value);
+ u8 (*get_power)(struct slot *slot);
+ int (*set_power)(struct slot *slot, int value);
+};
+
+struct cpci_hp_controller {
+ unsigned int irq;
+ unsigned long irq_flags;
+ char *devname;
+ void *dev_id;
+ char *name;
+ struct cpci_hp_controller_ops *ops;
+};
+
+static inline const char *slot_name(struct slot *slot)
+{
+ return hotplug_slot_name(&slot->hotplug_slot);
+}
+
+static inline struct slot *to_slot(struct hotplug_slot *hotplug_slot)
+{
+ return container_of(hotplug_slot, struct slot, hotplug_slot);
+}
+
+int cpci_hp_register_controller(struct cpci_hp_controller *controller);
+int cpci_hp_unregister_controller(struct cpci_hp_controller *controller);
+int cpci_hp_register_bus(struct pci_bus *bus, u8 first, u8 last);
+int cpci_hp_unregister_bus(struct pci_bus *bus);
+int cpci_hp_start(void);
+int cpci_hp_stop(void);
+
+/* Global variables */
+extern int cpci_debug;
+
+/*
+ * Internal function prototypes, these functions should not be used by
+ * board/chassis drivers.
+ */
+u8 cpci_get_attention_status(struct slot *slot);
+u8 cpci_get_latch_status(struct slot *slot);
+u8 cpci_get_adapter_status(struct slot *slot);
+u16 cpci_get_hs_csr(struct slot *slot);
+int cpci_set_attention_status(struct slot *slot, int status);
+int cpci_check_and_clear_ins(struct slot *slot);
+int cpci_check_ext(struct slot *slot);
+int cpci_clear_ext(struct slot *slot);
+int cpci_led_on(struct slot *slot);
+int cpci_led_off(struct slot *slot);
+int cpci_configure_slot(struct slot *slot);
+int cpci_unconfigure_slot(struct slot *slot);
+
+#ifdef CONFIG_HOTPLUG_PCI_CPCI
+int cpci_hotplug_init(int debug);
+#else
+static inline int cpci_hotplug_init(int debug) { return 0; }
+#endif
+
+#endif /* _CPCI_HOTPLUG_H */