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authorGreg Kroah-Hartman <gregkh@linuxfoundation.org>2012-04-26 12:34:58 -0700
committerGreg Kroah-Hartman <gregkh@linuxfoundation.org>2012-04-26 12:34:58 -0700
commitdb3b9e990e75573402cda22faf933760f076c033 (patch)
tree4e742e97f7bd71adc61ce23938e361d80b61a45d /drivers/vme/vme_bridge.h
parent8176df8e95df4c867457076190cfb18f2d7ff18c (diff)
downloadlinux-db3b9e990e75573402cda22faf933760f076c033.tar.gz
Staging: VME: move VME drivers out of staging
This moves the VME core, VME board drivers, and VME bridge drivers out of the drivers/staging/vme/ area to drivers/vme/. The VME device drivers have not moved out yet due to some API questions they are still working through, that should happen soon, hopefully. Cc: Martyn Welch <martyn.welch@ge.com> Cc: Manohar Vanga <manohar.vanga@cern.ch> Cc: Vincent Bossier <vincent.bossier@gmail.com> Cc: "Emilio G. Cota" <cota@braap.org> Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
Diffstat (limited to 'drivers/vme/vme_bridge.h')
-rw-r--r--drivers/vme/vme_bridge.h174
1 files changed, 174 insertions, 0 deletions
diff --git a/drivers/vme/vme_bridge.h b/drivers/vme/vme_bridge.h
new file mode 100644
index 00000000000..934949abd74
--- /dev/null
+++ b/drivers/vme/vme_bridge.h
@@ -0,0 +1,174 @@
+#ifndef _VME_BRIDGE_H_
+#define _VME_BRIDGE_H_
+
+#define VME_CRCSR_BUF_SIZE (508*1024)
+/*
+ * Resource structures
+ */
+struct vme_master_resource {
+ struct list_head list;
+ struct vme_bridge *parent;
+ /*
+ * We are likely to need to access the VME bus in interrupt context, so
+ * protect master routines with a spinlock rather than a mutex.
+ */
+ spinlock_t lock;
+ int locked;
+ int number;
+ u32 address_attr;
+ u32 cycle_attr;
+ u32 width_attr;
+ struct resource bus_resource;
+ void __iomem *kern_base;
+};
+
+struct vme_slave_resource {
+ struct list_head list;
+ struct vme_bridge *parent;
+ struct mutex mtx;
+ int locked;
+ int number;
+ u32 address_attr;
+ u32 cycle_attr;
+};
+
+struct vme_dma_pattern {
+ u32 pattern;
+ u32 type;
+};
+
+struct vme_dma_pci {
+ dma_addr_t address;
+};
+
+struct vme_dma_vme {
+ unsigned long long address;
+ u32 aspace;
+ u32 cycle;
+ u32 dwidth;
+};
+
+struct vme_dma_list {
+ struct list_head list;
+ struct vme_dma_resource *parent;
+ struct list_head entries;
+ struct mutex mtx;
+};
+
+struct vme_dma_resource {
+ struct list_head list;
+ struct vme_bridge *parent;
+ struct mutex mtx;
+ int locked;
+ int number;
+ struct list_head pending;
+ struct list_head running;
+ u32 route_attr;
+};
+
+struct vme_lm_resource {
+ struct list_head list;
+ struct vme_bridge *parent;
+ struct mutex mtx;
+ int locked;
+ int number;
+ int monitors;
+};
+
+struct vme_bus_error {
+ struct list_head list;
+ unsigned long long address;
+ u32 attributes;
+};
+
+struct vme_callback {
+ void (*func)(int, int, void*);
+ void *priv_data;
+};
+
+struct vme_irq {
+ int count;
+ struct vme_callback callback[255];
+};
+
+/* Allow 16 characters for name (including null character) */
+#define VMENAMSIZ 16
+
+/* This structure stores all the information about one bridge
+ * The structure should be dynamically allocated by the driver and one instance
+ * of the structure should be present for each VME chip present in the system.
+ */
+struct vme_bridge {
+ char name[VMENAMSIZ];
+ int num;
+ struct list_head master_resources;
+ struct list_head slave_resources;
+ struct list_head dma_resources;
+ struct list_head lm_resources;
+
+ struct list_head vme_errors; /* List for errors generated on VME */
+ struct list_head devices; /* List of devices on this bridge */
+
+ /* Bridge Info - XXX Move to private structure? */
+ struct device *parent; /* Parent device (eg. pdev->dev for PCI) */
+ void *driver_priv; /* Private pointer for the bridge driver */
+ struct list_head bus_list; /* list of VME buses */
+
+ /* Interrupt callbacks */
+ struct vme_irq irq[7];
+ /* Locking for VME irq callback configuration */
+ struct mutex irq_mtx;
+
+ /* Slave Functions */
+ int (*slave_get) (struct vme_slave_resource *, int *,
+ unsigned long long *, unsigned long long *, dma_addr_t *,
+ u32 *, u32 *);
+ int (*slave_set) (struct vme_slave_resource *, int, unsigned long long,
+ unsigned long long, dma_addr_t, u32, u32);
+
+ /* Master Functions */
+ int (*master_get) (struct vme_master_resource *, int *,
+ unsigned long long *, unsigned long long *, u32 *, u32 *,
+ u32 *);
+ int (*master_set) (struct vme_master_resource *, int,
+ unsigned long long, unsigned long long, u32, u32, u32);
+ ssize_t (*master_read) (struct vme_master_resource *, void *, size_t,
+ loff_t);
+ ssize_t (*master_write) (struct vme_master_resource *, void *, size_t,
+ loff_t);
+ unsigned int (*master_rmw) (struct vme_master_resource *, unsigned int,
+ unsigned int, unsigned int, loff_t);
+
+ /* DMA Functions */
+ int (*dma_list_add) (struct vme_dma_list *, struct vme_dma_attr *,
+ struct vme_dma_attr *, size_t);
+ int (*dma_list_exec) (struct vme_dma_list *);
+ int (*dma_list_empty) (struct vme_dma_list *);
+
+ /* Interrupt Functions */
+ void (*irq_set) (struct vme_bridge *, int, int, int);
+ int (*irq_generate) (struct vme_bridge *, int, int);
+
+ /* Location monitor functions */
+ int (*lm_set) (struct vme_lm_resource *, unsigned long long, u32, u32);
+ int (*lm_get) (struct vme_lm_resource *, unsigned long long *, u32 *,
+ u32 *);
+ int (*lm_attach) (struct vme_lm_resource *, int, void (*callback)(int));
+ int (*lm_detach) (struct vme_lm_resource *, int);
+
+ /* CR/CSR space functions */
+ int (*slot_get) (struct vme_bridge *);
+
+ /* Bridge parent interface */
+ void *(*alloc_consistent)(struct device *dev, size_t size,
+ dma_addr_t *dma);
+ void (*free_consistent)(struct device *dev, size_t size,
+ void *vaddr, dma_addr_t dma);
+};
+
+void vme_irq_handler(struct vme_bridge *, int, int);
+
+int vme_register_bridge(struct vme_bridge *);
+void vme_unregister_bridge(struct vme_bridge *);
+
+#endif /* _VME_BRIDGE_H_ */