| /* SPDX-License-Identifier: GPL-2.0 */ |
| #ifndef _VME_H_ |
| #define _VME_H_ |
| |
| /* Resource Type */ |
| enum vme_resource_type { |
| VME_MASTER, |
| VME_SLAVE, |
| VME_DMA, |
| VME_LM |
| }; |
| |
| /* VME Address Spaces */ |
| #define VME_A16 0x1 |
| #define VME_A24 0x2 |
| #define VME_A32 0x4 |
| #define VME_A64 0x8 |
| #define VME_CRCSR 0x10 |
| #define VME_USER1 0x20 |
| #define VME_USER2 0x40 |
| #define VME_USER3 0x80 |
| #define VME_USER4 0x100 |
| |
| #define VME_A16_MAX 0x10000ULL |
| #define VME_A24_MAX 0x1000000ULL |
| #define VME_A32_MAX 0x100000000ULL |
| #define VME_A64_MAX 0x10000000000000000ULL |
| #define VME_CRCSR_MAX 0x1000000ULL |
| |
| |
| /* VME Cycle Types */ |
| #define VME_SCT 0x1 |
| #define VME_BLT 0x2 |
| #define VME_MBLT 0x4 |
| #define VME_2eVME 0x8 |
| #define VME_2eSST 0x10 |
| #define VME_2eSSTB 0x20 |
| |
| #define VME_2eSST160 0x100 |
| #define VME_2eSST267 0x200 |
| #define VME_2eSST320 0x400 |
| |
| #define VME_SUPER 0x1000 |
| #define VME_USER 0x2000 |
| #define VME_PROG 0x4000 |
| #define VME_DATA 0x8000 |
| |
| /* VME Data Widths */ |
| #define VME_D8 0x1 |
| #define VME_D16 0x2 |
| #define VME_D32 0x4 |
| #define VME_D64 0x8 |
| |
| /* Arbitration Scheduling Modes */ |
| #define VME_R_ROBIN_MODE 0x1 |
| #define VME_PRIORITY_MODE 0x2 |
| |
| #define VME_DMA_PATTERN (1<<0) |
| #define VME_DMA_PCI (1<<1) |
| #define VME_DMA_VME (1<<2) |
| |
| #define VME_DMA_PATTERN_BYTE (1<<0) |
| #define VME_DMA_PATTERN_WORD (1<<1) |
| #define VME_DMA_PATTERN_INCREMENT (1<<2) |
| |
| #define VME_DMA_VME_TO_MEM (1<<0) |
| #define VME_DMA_MEM_TO_VME (1<<1) |
| #define VME_DMA_VME_TO_VME (1<<2) |
| #define VME_DMA_MEM_TO_MEM (1<<3) |
| #define VME_DMA_PATTERN_TO_VME (1<<4) |
| #define VME_DMA_PATTERN_TO_MEM (1<<5) |
| |
| struct vme_dma_attr { |
| u32 type; |
| void *private; |
| }; |
| |
| struct vme_resource { |
| enum vme_resource_type type; |
| struct list_head *entry; |
| }; |
| |
| extern struct bus_type vme_bus_type; |
| |
| /* Number of VME interrupt vectors */ |
| #define VME_NUM_STATUSID 256 |
| |
| /* VME_MAX_BRIDGES comes from the type of vme_bus_numbers */ |
| #define VME_MAX_BRIDGES (sizeof(unsigned int)*8) |
| #define VME_MAX_SLOTS 32 |
| |
| #define VME_SLOT_CURRENT -1 |
| #define VME_SLOT_ALL -2 |
| |
| /** |
| * struct vme_dev - Structure representing a VME device |
| * @num: The device number |
| * @bridge: Pointer to the bridge device this device is on |
| * @dev: Internal device structure |
| * @drv_list: List of devices (per driver) |
| * @bridge_list: List of devices (per bridge) |
| */ |
| struct vme_dev { |
| int num; |
| struct vme_bridge *bridge; |
| struct device dev; |
| struct list_head drv_list; |
| struct list_head bridge_list; |
| }; |
| |
| /** |
| * struct vme_driver - Structure representing a VME driver |
| * @name: Driver name, should be unique among VME drivers and usually the same |
| * as the module name. |
| * @match: Callback used to determine whether probe should be run. |
| * @probe: Callback for device binding, called when new device is detected. |
| * @remove: Callback, called on device removal. |
| * @driver: Underlying generic device driver structure. |
| * @devices: List of VME devices (struct vme_dev) associated with this driver. |
| */ |
| struct vme_driver { |
| const char *name; |
| int (*match)(struct vme_dev *); |
| int (*probe)(struct vme_dev *); |
| void (*remove)(struct vme_dev *); |
| struct device_driver driver; |
| struct list_head devices; |
| }; |
| |
| void *vme_alloc_consistent(struct vme_resource *, size_t, dma_addr_t *); |
| void vme_free_consistent(struct vme_resource *, size_t, void *, |
| dma_addr_t); |
| |
| size_t vme_get_size(struct vme_resource *); |
| int vme_check_window(u32 aspace, unsigned long long vme_base, |
| unsigned long long size); |
| |
| struct vme_resource *vme_slave_request(struct vme_dev *, u32, u32); |
| int vme_slave_set(struct vme_resource *, int, unsigned long long, |
| unsigned long long, dma_addr_t, u32, u32); |
| int vme_slave_get(struct vme_resource *, int *, unsigned long long *, |
| unsigned long long *, dma_addr_t *, u32 *, u32 *); |
| void vme_slave_free(struct vme_resource *); |
| |
| struct vme_resource *vme_master_request(struct vme_dev *, u32, u32, u32); |
| int vme_master_set(struct vme_resource *, int, unsigned long long, |
| unsigned long long, u32, u32, u32); |
| int vme_master_get(struct vme_resource *, int *, unsigned long long *, |
| unsigned long long *, u32 *, u32 *, u32 *); |
| ssize_t vme_master_read(struct vme_resource *, void *, size_t, loff_t); |
| ssize_t vme_master_write(struct vme_resource *, void *, size_t, loff_t); |
| unsigned int vme_master_rmw(struct vme_resource *, unsigned int, unsigned int, |
| unsigned int, loff_t); |
| int vme_master_mmap(struct vme_resource *resource, struct vm_area_struct *vma); |
| void vme_master_free(struct vme_resource *); |
| |
| struct vme_resource *vme_dma_request(struct vme_dev *, u32); |
| struct vme_dma_list *vme_new_dma_list(struct vme_resource *); |
| struct vme_dma_attr *vme_dma_pattern_attribute(u32, u32); |
| struct vme_dma_attr *vme_dma_pci_attribute(dma_addr_t); |
| struct vme_dma_attr *vme_dma_vme_attribute(unsigned long long, u32, u32, u32); |
| void vme_dma_free_attribute(struct vme_dma_attr *); |
| int vme_dma_list_add(struct vme_dma_list *, struct vme_dma_attr *, |
| struct vme_dma_attr *, size_t); |
| int vme_dma_list_exec(struct vme_dma_list *); |
| int vme_dma_list_free(struct vme_dma_list *); |
| int vme_dma_free(struct vme_resource *); |
| |
| int vme_irq_request(struct vme_dev *, int, int, |
| void (*callback)(int, int, void *), void *); |
| void vme_irq_free(struct vme_dev *, int, int); |
| int vme_irq_generate(struct vme_dev *, int, int); |
| |
| struct vme_resource *vme_lm_request(struct vme_dev *); |
| int vme_lm_count(struct vme_resource *); |
| int vme_lm_set(struct vme_resource *, unsigned long long, u32, u32); |
| int vme_lm_get(struct vme_resource *, unsigned long long *, u32 *, u32 *); |
| int vme_lm_attach(struct vme_resource *, int, void (*callback)(void *), void *); |
| int vme_lm_detach(struct vme_resource *, int); |
| void vme_lm_free(struct vme_resource *); |
| |
| int vme_slot_num(struct vme_dev *); |
| int vme_bus_num(struct vme_dev *); |
| |
| int vme_register_driver(struct vme_driver *, unsigned int); |
| void vme_unregister_driver(struct vme_driver *); |
| |
| |
| #endif /* _VME_H_ */ |
| |