135ba63b8SArnd Bergmann /* SPDX-License-Identifier: GPL-2.0 */ 235ba63b8SArnd Bergmann #ifndef _VME_H_ 335ba63b8SArnd Bergmann #define _VME_H_ 435ba63b8SArnd Bergmann 5*9ac9e59fSAbhirup Deb #include <linux/bitops.h> 6*9ac9e59fSAbhirup Deb 735ba63b8SArnd Bergmann /* Resource Type */ 835ba63b8SArnd Bergmann enum vme_resource_type { 935ba63b8SArnd Bergmann VME_MASTER, 1035ba63b8SArnd Bergmann VME_SLAVE, 1135ba63b8SArnd Bergmann VME_DMA, 1235ba63b8SArnd Bergmann VME_LM 1335ba63b8SArnd Bergmann }; 1435ba63b8SArnd Bergmann 1535ba63b8SArnd Bergmann /* VME Address Spaces */ 1635ba63b8SArnd Bergmann #define VME_A16 0x1 1735ba63b8SArnd Bergmann #define VME_A24 0x2 1835ba63b8SArnd Bergmann #define VME_A32 0x4 1935ba63b8SArnd Bergmann #define VME_A64 0x8 2035ba63b8SArnd Bergmann #define VME_CRCSR 0x10 2135ba63b8SArnd Bergmann #define VME_USER1 0x20 2235ba63b8SArnd Bergmann #define VME_USER2 0x40 2335ba63b8SArnd Bergmann #define VME_USER3 0x80 2435ba63b8SArnd Bergmann #define VME_USER4 0x100 2535ba63b8SArnd Bergmann 2635ba63b8SArnd Bergmann #define VME_A16_MAX 0x10000ULL 2735ba63b8SArnd Bergmann #define VME_A24_MAX 0x1000000ULL 2835ba63b8SArnd Bergmann #define VME_A32_MAX 0x100000000ULL 2935ba63b8SArnd Bergmann #define VME_A64_MAX 0x10000000000000000ULL 3035ba63b8SArnd Bergmann #define VME_CRCSR_MAX 0x1000000ULL 3135ba63b8SArnd Bergmann 3235ba63b8SArnd Bergmann /* VME Cycle Types */ 3335ba63b8SArnd Bergmann #define VME_SCT 0x1 3435ba63b8SArnd Bergmann #define VME_BLT 0x2 3535ba63b8SArnd Bergmann #define VME_MBLT 0x4 3635ba63b8SArnd Bergmann #define VME_2eVME 0x8 3735ba63b8SArnd Bergmann #define VME_2eSST 0x10 3835ba63b8SArnd Bergmann #define VME_2eSSTB 0x20 3935ba63b8SArnd Bergmann 4035ba63b8SArnd Bergmann #define VME_2eSST160 0x100 4135ba63b8SArnd Bergmann #define VME_2eSST267 0x200 4235ba63b8SArnd Bergmann #define VME_2eSST320 0x400 4335ba63b8SArnd Bergmann 4435ba63b8SArnd Bergmann #define VME_SUPER 0x1000 4535ba63b8SArnd Bergmann #define VME_USER 0x2000 4635ba63b8SArnd Bergmann #define VME_PROG 0x4000 4735ba63b8SArnd Bergmann #define VME_DATA 0x8000 4835ba63b8SArnd Bergmann 4935ba63b8SArnd Bergmann /* VME Data Widths */ 5035ba63b8SArnd Bergmann #define VME_D8 0x1 5135ba63b8SArnd Bergmann #define VME_D16 0x2 5235ba63b8SArnd Bergmann #define VME_D32 0x4 5335ba63b8SArnd Bergmann #define VME_D64 0x8 5435ba63b8SArnd Bergmann 5535ba63b8SArnd Bergmann /* Arbitration Scheduling Modes */ 5635ba63b8SArnd Bergmann #define VME_R_ROBIN_MODE 0x1 5735ba63b8SArnd Bergmann #define VME_PRIORITY_MODE 0x2 5835ba63b8SArnd Bergmann 59*9ac9e59fSAbhirup Deb #define VME_DMA_PATTERN BIT(0) 60*9ac9e59fSAbhirup Deb #define VME_DMA_PCI BIT(1) 61*9ac9e59fSAbhirup Deb #define VME_DMA_VME BIT(2) 6235ba63b8SArnd Bergmann 63*9ac9e59fSAbhirup Deb #define VME_DMA_PATTERN_BYTE BIT(0) 64*9ac9e59fSAbhirup Deb #define VME_DMA_PATTERN_WORD BIT(1) 65*9ac9e59fSAbhirup Deb #define VME_DMA_PATTERN_INCREMENT BIT(2) 6635ba63b8SArnd Bergmann 67*9ac9e59fSAbhirup Deb #define VME_DMA_VME_TO_MEM BIT(0) 68*9ac9e59fSAbhirup Deb #define VME_DMA_MEM_TO_VME BIT(1) 69*9ac9e59fSAbhirup Deb #define VME_DMA_VME_TO_VME BIT(2) 70*9ac9e59fSAbhirup Deb #define VME_DMA_MEM_TO_MEM BIT(3) 71*9ac9e59fSAbhirup Deb #define VME_DMA_PATTERN_TO_VME BIT(4) 72*9ac9e59fSAbhirup Deb #define VME_DMA_PATTERN_TO_MEM BIT(5) 7335ba63b8SArnd Bergmann 7435ba63b8SArnd Bergmann struct vme_dma_attr { 7535ba63b8SArnd Bergmann u32 type; 7635ba63b8SArnd Bergmann void *private; 7735ba63b8SArnd Bergmann }; 7835ba63b8SArnd Bergmann 7935ba63b8SArnd Bergmann struct vme_resource { 8035ba63b8SArnd Bergmann enum vme_resource_type type; 8135ba63b8SArnd Bergmann struct list_head *entry; 8235ba63b8SArnd Bergmann }; 8335ba63b8SArnd Bergmann 8435ba63b8SArnd Bergmann extern struct bus_type vme_bus_type; 8535ba63b8SArnd Bergmann 8635ba63b8SArnd Bergmann /* Number of VME interrupt vectors */ 8735ba63b8SArnd Bergmann #define VME_NUM_STATUSID 256 8835ba63b8SArnd Bergmann 8935ba63b8SArnd Bergmann /* VME_MAX_BRIDGES comes from the type of vme_bus_numbers */ 9035ba63b8SArnd Bergmann #define VME_MAX_BRIDGES (sizeof(unsigned int)*8) 9135ba63b8SArnd Bergmann #define VME_MAX_SLOTS 32 9235ba63b8SArnd Bergmann 9335ba63b8SArnd Bergmann #define VME_SLOT_CURRENT -1 9435ba63b8SArnd Bergmann #define VME_SLOT_ALL -2 9535ba63b8SArnd Bergmann 9635ba63b8SArnd Bergmann /** 9735ba63b8SArnd Bergmann * struct vme_dev - Structure representing a VME device 9835ba63b8SArnd Bergmann * @num: The device number 9935ba63b8SArnd Bergmann * @bridge: Pointer to the bridge device this device is on 10035ba63b8SArnd Bergmann * @dev: Internal device structure 10135ba63b8SArnd Bergmann * @drv_list: List of devices (per driver) 10235ba63b8SArnd Bergmann * @bridge_list: List of devices (per bridge) 10335ba63b8SArnd Bergmann */ 10435ba63b8SArnd Bergmann struct vme_dev { 10535ba63b8SArnd Bergmann int num; 10635ba63b8SArnd Bergmann struct vme_bridge *bridge; 10735ba63b8SArnd Bergmann struct device dev; 10835ba63b8SArnd Bergmann struct list_head drv_list; 10935ba63b8SArnd Bergmann struct list_head bridge_list; 11035ba63b8SArnd Bergmann }; 11135ba63b8SArnd Bergmann 11235ba63b8SArnd Bergmann /** 11335ba63b8SArnd Bergmann * struct vme_driver - Structure representing a VME driver 11435ba63b8SArnd Bergmann * @name: Driver name, should be unique among VME drivers and usually the same 11535ba63b8SArnd Bergmann * as the module name. 11635ba63b8SArnd Bergmann * @match: Callback used to determine whether probe should be run. 11735ba63b8SArnd Bergmann * @probe: Callback for device binding, called when new device is detected. 11835ba63b8SArnd Bergmann * @remove: Callback, called on device removal. 11935ba63b8SArnd Bergmann * @driver: Underlying generic device driver structure. 12035ba63b8SArnd Bergmann * @devices: List of VME devices (struct vme_dev) associated with this driver. 12135ba63b8SArnd Bergmann */ 12235ba63b8SArnd Bergmann struct vme_driver { 12335ba63b8SArnd Bergmann const char *name; 12435ba63b8SArnd Bergmann int (*match)(struct vme_dev *); 12535ba63b8SArnd Bergmann int (*probe)(struct vme_dev *); 12635ba63b8SArnd Bergmann void (*remove)(struct vme_dev *); 12735ba63b8SArnd Bergmann struct device_driver driver; 12835ba63b8SArnd Bergmann struct list_head devices; 12935ba63b8SArnd Bergmann }; 13035ba63b8SArnd Bergmann 13135ba63b8SArnd Bergmann void *vme_alloc_consistent(struct vme_resource *, size_t, dma_addr_t *); 13235ba63b8SArnd Bergmann void vme_free_consistent(struct vme_resource *, size_t, void *, 13335ba63b8SArnd Bergmann dma_addr_t); 13435ba63b8SArnd Bergmann 13535ba63b8SArnd Bergmann size_t vme_get_size(struct vme_resource *); 13635ba63b8SArnd Bergmann int vme_check_window(u32 aspace, unsigned long long vme_base, 13735ba63b8SArnd Bergmann unsigned long long size); 13835ba63b8SArnd Bergmann 13935ba63b8SArnd Bergmann struct vme_resource *vme_slave_request(struct vme_dev *, u32, u32); 14035ba63b8SArnd Bergmann int vme_slave_set(struct vme_resource *, int, unsigned long long, 14135ba63b8SArnd Bergmann unsigned long long, dma_addr_t, u32, u32); 14235ba63b8SArnd Bergmann int vme_slave_get(struct vme_resource *, int *, unsigned long long *, 14335ba63b8SArnd Bergmann unsigned long long *, dma_addr_t *, u32 *, u32 *); 14435ba63b8SArnd Bergmann void vme_slave_free(struct vme_resource *); 14535ba63b8SArnd Bergmann 14635ba63b8SArnd Bergmann struct vme_resource *vme_master_request(struct vme_dev *, u32, u32, u32); 14735ba63b8SArnd Bergmann int vme_master_set(struct vme_resource *, int, unsigned long long, 14835ba63b8SArnd Bergmann unsigned long long, u32, u32, u32); 14935ba63b8SArnd Bergmann int vme_master_get(struct vme_resource *, int *, unsigned long long *, 15035ba63b8SArnd Bergmann unsigned long long *, u32 *, u32 *, u32 *); 15135ba63b8SArnd Bergmann ssize_t vme_master_read(struct vme_resource *, void *, size_t, loff_t); 15235ba63b8SArnd Bergmann ssize_t vme_master_write(struct vme_resource *, void *, size_t, loff_t); 15335ba63b8SArnd Bergmann unsigned int vme_master_rmw(struct vme_resource *, unsigned int, unsigned int, 15435ba63b8SArnd Bergmann unsigned int, loff_t); 15535ba63b8SArnd Bergmann int vme_master_mmap(struct vme_resource *resource, struct vm_area_struct *vma); 15635ba63b8SArnd Bergmann void vme_master_free(struct vme_resource *); 15735ba63b8SArnd Bergmann 15835ba63b8SArnd Bergmann struct vme_resource *vme_dma_request(struct vme_dev *, u32); 15935ba63b8SArnd Bergmann struct vme_dma_list *vme_new_dma_list(struct vme_resource *); 16035ba63b8SArnd Bergmann struct vme_dma_attr *vme_dma_pattern_attribute(u32, u32); 16135ba63b8SArnd Bergmann struct vme_dma_attr *vme_dma_pci_attribute(dma_addr_t); 16235ba63b8SArnd Bergmann struct vme_dma_attr *vme_dma_vme_attribute(unsigned long long, u32, u32, u32); 16335ba63b8SArnd Bergmann void vme_dma_free_attribute(struct vme_dma_attr *); 16435ba63b8SArnd Bergmann int vme_dma_list_add(struct vme_dma_list *, struct vme_dma_attr *, 16535ba63b8SArnd Bergmann struct vme_dma_attr *, size_t); 16635ba63b8SArnd Bergmann int vme_dma_list_exec(struct vme_dma_list *); 16735ba63b8SArnd Bergmann int vme_dma_list_free(struct vme_dma_list *); 16835ba63b8SArnd Bergmann int vme_dma_free(struct vme_resource *); 16935ba63b8SArnd Bergmann 17035ba63b8SArnd Bergmann int vme_irq_request(struct vme_dev *, int, int, 17135ba63b8SArnd Bergmann void (*callback)(int, int, void *), void *); 17235ba63b8SArnd Bergmann void vme_irq_free(struct vme_dev *, int, int); 17335ba63b8SArnd Bergmann int vme_irq_generate(struct vme_dev *, int, int); 17435ba63b8SArnd Bergmann 17535ba63b8SArnd Bergmann struct vme_resource *vme_lm_request(struct vme_dev *); 17635ba63b8SArnd Bergmann int vme_lm_count(struct vme_resource *); 17735ba63b8SArnd Bergmann int vme_lm_set(struct vme_resource *, unsigned long long, u32, u32); 17835ba63b8SArnd Bergmann int vme_lm_get(struct vme_resource *, unsigned long long *, u32 *, u32 *); 17935ba63b8SArnd Bergmann int vme_lm_attach(struct vme_resource *, int, void (*callback)(void *), void *); 18035ba63b8SArnd Bergmann int vme_lm_detach(struct vme_resource *, int); 18135ba63b8SArnd Bergmann void vme_lm_free(struct vme_resource *); 18235ba63b8SArnd Bergmann 18335ba63b8SArnd Bergmann int vme_slot_num(struct vme_dev *); 18435ba63b8SArnd Bergmann int vme_bus_num(struct vme_dev *); 18535ba63b8SArnd Bergmann 18635ba63b8SArnd Bergmann int vme_register_driver(struct vme_driver *, unsigned int); 18735ba63b8SArnd Bergmann void vme_unregister_driver(struct vme_driver *); 18835ba63b8SArnd Bergmann 18935ba63b8SArnd Bergmann #endif /* _VME_H_ */ 19035ba63b8SArnd Bergmann 191