linux/include/linux/vme.h
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   1#ifndef _VME_H_
   2#define _VME_H_
   3
   4/* Resource Type */
   5enum vme_resource_type {
   6        VME_MASTER,
   7        VME_SLAVE,
   8        VME_DMA,
   9        VME_LM
  10};
  11
  12/* VME Address Spaces */
  13#define VME_A16         0x1
  14#define VME_A24         0x2
  15#define VME_A32         0x4
  16#define VME_A64         0x8
  17#define VME_CRCSR       0x10
  18#define VME_USER1       0x20
  19#define VME_USER2       0x40
  20#define VME_USER3       0x80
  21#define VME_USER4       0x100
  22
  23#define VME_A16_MAX     0x10000ULL
  24#define VME_A24_MAX     0x1000000ULL
  25#define VME_A32_MAX     0x100000000ULL
  26#define VME_A64_MAX     0x10000000000000000ULL
  27#define VME_CRCSR_MAX   0x1000000ULL
  28
  29
  30/* VME Cycle Types */
  31#define VME_SCT         0x1
  32#define VME_BLT         0x2
  33#define VME_MBLT        0x4
  34#define VME_2eVME       0x8
  35#define VME_2eSST       0x10
  36#define VME_2eSSTB      0x20
  37
  38#define VME_2eSST160    0x100
  39#define VME_2eSST267    0x200
  40#define VME_2eSST320    0x400
  41
  42#define VME_SUPER       0x1000
  43#define VME_USER        0x2000
  44#define VME_PROG        0x4000
  45#define VME_DATA        0x8000
  46
  47/* VME Data Widths */
  48#define VME_D8          0x1
  49#define VME_D16         0x2
  50#define VME_D32         0x4
  51#define VME_D64         0x8
  52
  53/* Arbitration Scheduling Modes */
  54#define VME_R_ROBIN_MODE        0x1
  55#define VME_PRIORITY_MODE       0x2
  56
  57#define VME_DMA_PATTERN                 (1<<0)
  58#define VME_DMA_PCI                     (1<<1)
  59#define VME_DMA_VME                     (1<<2)
  60
  61#define VME_DMA_PATTERN_BYTE            (1<<0)
  62#define VME_DMA_PATTERN_WORD            (1<<1)
  63#define VME_DMA_PATTERN_INCREMENT       (1<<2)
  64
  65#define VME_DMA_VME_TO_MEM              (1<<0)
  66#define VME_DMA_MEM_TO_VME              (1<<1)
  67#define VME_DMA_VME_TO_VME              (1<<2)
  68#define VME_DMA_MEM_TO_MEM              (1<<3)
  69#define VME_DMA_PATTERN_TO_VME          (1<<4)
  70#define VME_DMA_PATTERN_TO_MEM          (1<<5)
  71
  72struct vme_dma_attr {
  73        u32 type;
  74        void *private;
  75};
  76
  77struct vme_resource {
  78        enum vme_resource_type type;
  79        struct list_head *entry;
  80};
  81
  82extern struct bus_type vme_bus_type;
  83
  84/* VME_MAX_BRIDGES comes from the type of vme_bus_numbers */
  85#define VME_MAX_BRIDGES         (sizeof(unsigned int)*8)
  86#define VME_MAX_SLOTS           32
  87
  88#define VME_SLOT_CURRENT        -1
  89#define VME_SLOT_ALL            -2
  90
  91/**
  92 * Structure representing a VME device
  93 * @num: The device number
  94 * @bridge: Pointer to the bridge device this device is on
  95 * @dev: Internal device structure
  96 * @drv_list: List of devices (per driver)
  97 * @bridge_list: List of devices (per bridge)
  98 */
  99struct vme_dev {
 100        int num;
 101        struct vme_bridge *bridge;
 102        struct device dev;
 103        struct list_head drv_list;
 104        struct list_head bridge_list;
 105};
 106
 107struct vme_driver {
 108        struct list_head node;
 109        const char *name;
 110        int (*match)(struct vme_dev *);
 111        int (*probe)(struct vme_dev *);
 112        int (*remove)(struct vme_dev *);
 113        void (*shutdown)(void);
 114        struct device_driver driver;
 115        struct list_head devices;
 116};
 117
 118void *vme_alloc_consistent(struct vme_resource *, size_t, dma_addr_t *);
 119void vme_free_consistent(struct vme_resource *, size_t,  void *,
 120        dma_addr_t);
 121
 122size_t vme_get_size(struct vme_resource *);
 123
 124struct vme_resource *vme_slave_request(struct vme_dev *, u32, u32);
 125int vme_slave_set(struct vme_resource *, int, unsigned long long,
 126        unsigned long long, dma_addr_t, u32, u32);
 127int vme_slave_get(struct vme_resource *, int *, unsigned long long *,
 128        unsigned long long *, dma_addr_t *, u32 *, u32 *);
 129void vme_slave_free(struct vme_resource *);
 130
 131struct vme_resource *vme_master_request(struct vme_dev *, u32, u32, u32);
 132int vme_master_set(struct vme_resource *, int, unsigned long long,
 133        unsigned long long, u32, u32, u32);
 134int vme_master_get(struct vme_resource *, int *, unsigned long long *,
 135        unsigned long long *, u32 *, u32 *, u32 *);
 136ssize_t vme_master_read(struct vme_resource *, void *, size_t, loff_t);
 137ssize_t vme_master_write(struct vme_resource *, void *, size_t, loff_t);
 138unsigned int vme_master_rmw(struct vme_resource *, unsigned int, unsigned int,
 139        unsigned int, loff_t);
 140void vme_master_free(struct vme_resource *);
 141
 142struct vme_resource *vme_dma_request(struct vme_dev *, u32);
 143struct vme_dma_list *vme_new_dma_list(struct vme_resource *);
 144struct vme_dma_attr *vme_dma_pattern_attribute(u32, u32);
 145struct vme_dma_attr *vme_dma_pci_attribute(dma_addr_t);
 146struct vme_dma_attr *vme_dma_vme_attribute(unsigned long long, u32, u32, u32);
 147void vme_dma_free_attribute(struct vme_dma_attr *);
 148int vme_dma_list_add(struct vme_dma_list *, struct vme_dma_attr *,
 149        struct vme_dma_attr *, size_t);
 150int vme_dma_list_exec(struct vme_dma_list *);
 151int vme_dma_list_free(struct vme_dma_list *);
 152int vme_dma_free(struct vme_resource *);
 153
 154int vme_irq_request(struct vme_dev *, int, int,
 155        void (*callback)(int, int, void *), void *);
 156void vme_irq_free(struct vme_dev *, int, int);
 157int vme_irq_generate(struct vme_dev *, int, int);
 158
 159struct vme_resource *vme_lm_request(struct vme_dev *);
 160int vme_lm_count(struct vme_resource *);
 161int vme_lm_set(struct vme_resource *, unsigned long long, u32, u32);
 162int vme_lm_get(struct vme_resource *, unsigned long long *, u32 *, u32 *);
 163int vme_lm_attach(struct vme_resource *, int, void (*callback)(int));
 164int vme_lm_detach(struct vme_resource *, int);
 165void vme_lm_free(struct vme_resource *);
 166
 167int vme_slot_get(struct vme_dev *);
 168
 169int vme_register_driver(struct vme_driver *, unsigned int);
 170void vme_unregister_driver(struct vme_driver *);
 171
 172
 173#endif /* _VME_H_ */
 174
 175
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