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TOMOYO Linux Cross Reference
Linux/include/linux/vme.h

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  1 /* SPDX-License-Identifier: GPL-2.0 */
  2 #ifndef _VME_H_
  3 #define _VME_H_
  4 
  5 /* Resource Type */
  6 enum vme_resource_type {
  7         VME_MASTER,
  8         VME_SLAVE,
  9         VME_DMA,
 10         VME_LM
 11 };
 12 
 13 /* VME Address Spaces */
 14 #define VME_A16         0x1
 15 #define VME_A24         0x2
 16 #define VME_A32         0x4
 17 #define VME_A64         0x8
 18 #define VME_CRCSR       0x10
 19 #define VME_USER1       0x20
 20 #define VME_USER2       0x40
 21 #define VME_USER3       0x80
 22 #define VME_USER4       0x100
 23 
 24 #define VME_A16_MAX     0x10000ULL
 25 #define VME_A24_MAX     0x1000000ULL
 26 #define VME_A32_MAX     0x100000000ULL
 27 #define VME_A64_MAX     0x10000000000000000ULL
 28 #define VME_CRCSR_MAX   0x1000000ULL
 29 
 30 
 31 /* VME Cycle Types */
 32 #define VME_SCT         0x1
 33 #define VME_BLT         0x2
 34 #define VME_MBLT        0x4
 35 #define VME_2eVME       0x8
 36 #define VME_2eSST       0x10
 37 #define VME_2eSSTB      0x20
 38 
 39 #define VME_2eSST160    0x100
 40 #define VME_2eSST267    0x200
 41 #define VME_2eSST320    0x400
 42 
 43 #define VME_SUPER       0x1000
 44 #define VME_USER        0x2000
 45 #define VME_PROG        0x4000
 46 #define VME_DATA        0x8000
 47 
 48 /* VME Data Widths */
 49 #define VME_D8          0x1
 50 #define VME_D16         0x2
 51 #define VME_D32         0x4
 52 #define VME_D64         0x8
 53 
 54 /* Arbitration Scheduling Modes */
 55 #define VME_R_ROBIN_MODE        0x1
 56 #define VME_PRIORITY_MODE       0x2
 57 
 58 #define VME_DMA_PATTERN                 (1<<0)
 59 #define VME_DMA_PCI                     (1<<1)
 60 #define VME_DMA_VME                     (1<<2)
 61 
 62 #define VME_DMA_PATTERN_BYTE            (1<<0)
 63 #define VME_DMA_PATTERN_WORD            (1<<1)
 64 #define VME_DMA_PATTERN_INCREMENT       (1<<2)
 65 
 66 #define VME_DMA_VME_TO_MEM              (1<<0)
 67 #define VME_DMA_MEM_TO_VME              (1<<1)
 68 #define VME_DMA_VME_TO_VME              (1<<2)
 69 #define VME_DMA_MEM_TO_MEM              (1<<3)
 70 #define VME_DMA_PATTERN_TO_VME          (1<<4)
 71 #define VME_DMA_PATTERN_TO_MEM          (1<<5)
 72 
 73 struct vme_dma_attr {
 74         u32 type;
 75         void *private;
 76 };
 77 
 78 struct vme_resource {
 79         enum vme_resource_type type;
 80         struct list_head *entry;
 81 };
 82 
 83 extern struct bus_type vme_bus_type;
 84 
 85 /* Number of VME interrupt vectors */
 86 #define VME_NUM_STATUSID        256
 87 
 88 /* VME_MAX_BRIDGES comes from the type of vme_bus_numbers */
 89 #define VME_MAX_BRIDGES         (sizeof(unsigned int)*8)
 90 #define VME_MAX_SLOTS           32
 91 
 92 #define VME_SLOT_CURRENT        -1
 93 #define VME_SLOT_ALL            -2
 94 
 95 /**
 96  * struct vme_dev - Structure representing a VME device
 97  * @num: The device number
 98  * @bridge: Pointer to the bridge device this device is on
 99  * @dev: Internal device structure
100  * @drv_list: List of devices (per driver)
101  * @bridge_list: List of devices (per bridge)
102  */
103 struct vme_dev {
104         int num;
105         struct vme_bridge *bridge;
106         struct device dev;
107         struct list_head drv_list;
108         struct list_head bridge_list;
109 };
110 
111 /**
112  * struct vme_driver - Structure representing a VME driver
113  * @name: Driver name, should be unique among VME drivers and usually the same
114  *        as the module name.
115  * @match: Callback used to determine whether probe should be run.
116  * @probe: Callback for device binding, called when new device is detected.
117  * @remove: Callback, called on device removal.
118  * @driver: Underlying generic device driver structure.
119  * @devices: List of VME devices (struct vme_dev) associated with this driver.
120  */
121 struct vme_driver {
122         const char *name;
123         int (*match)(struct vme_dev *);
124         int (*probe)(struct vme_dev *);
125         int (*remove)(struct vme_dev *);
126         struct device_driver driver;
127         struct list_head devices;
128 };
129 
130 void *vme_alloc_consistent(struct vme_resource *, size_t, dma_addr_t *);
131 void vme_free_consistent(struct vme_resource *, size_t,  void *,
132         dma_addr_t);
133 
134 size_t vme_get_size(struct vme_resource *);
135 int vme_check_window(u32 aspace, unsigned long long vme_base,
136                      unsigned long long size);
137 
138 struct vme_resource *vme_slave_request(struct vme_dev *, u32, u32);
139 int vme_slave_set(struct vme_resource *, int, unsigned long long,
140         unsigned long long, dma_addr_t, u32, u32);
141 int vme_slave_get(struct vme_resource *, int *, unsigned long long *,
142         unsigned long long *, dma_addr_t *, u32 *, u32 *);
143 void vme_slave_free(struct vme_resource *);
144 
145 struct vme_resource *vme_master_request(struct vme_dev *, u32, u32, u32);
146 int vme_master_set(struct vme_resource *, int, unsigned long long,
147         unsigned long long, u32, u32, u32);
148 int vme_master_get(struct vme_resource *, int *, unsigned long long *,
149         unsigned long long *, u32 *, u32 *, u32 *);
150 ssize_t vme_master_read(struct vme_resource *, void *, size_t, loff_t);
151 ssize_t vme_master_write(struct vme_resource *, void *, size_t, loff_t);
152 unsigned int vme_master_rmw(struct vme_resource *, unsigned int, unsigned int,
153         unsigned int, loff_t);
154 int vme_master_mmap(struct vme_resource *resource, struct vm_area_struct *vma);
155 void vme_master_free(struct vme_resource *);
156 
157 struct vme_resource *vme_dma_request(struct vme_dev *, u32);
158 struct vme_dma_list *vme_new_dma_list(struct vme_resource *);
159 struct vme_dma_attr *vme_dma_pattern_attribute(u32, u32);
160 struct vme_dma_attr *vme_dma_pci_attribute(dma_addr_t);
161 struct vme_dma_attr *vme_dma_vme_attribute(unsigned long long, u32, u32, u32);
162 void vme_dma_free_attribute(struct vme_dma_attr *);
163 int vme_dma_list_add(struct vme_dma_list *, struct vme_dma_attr *,
164         struct vme_dma_attr *, size_t);
165 int vme_dma_list_exec(struct vme_dma_list *);
166 int vme_dma_list_free(struct vme_dma_list *);
167 int vme_dma_free(struct vme_resource *);
168 
169 int vme_irq_request(struct vme_dev *, int, int,
170         void (*callback)(int, int, void *), void *);
171 void vme_irq_free(struct vme_dev *, int, int);
172 int vme_irq_generate(struct vme_dev *, int, int);
173 
174 struct vme_resource *vme_lm_request(struct vme_dev *);
175 int vme_lm_count(struct vme_resource *);
176 int vme_lm_set(struct vme_resource *, unsigned long long, u32, u32);
177 int vme_lm_get(struct vme_resource *, unsigned long long *, u32 *, u32 *);
178 int vme_lm_attach(struct vme_resource *, int, void (*callback)(void *), void *);
179 int vme_lm_detach(struct vme_resource *, int);
180 void vme_lm_free(struct vme_resource *);
181 
182 int vme_slot_num(struct vme_dev *);
183 int vme_bus_num(struct vme_dev *);
184 
185 int vme_register_driver(struct vme_driver *, unsigned int);
186 void vme_unregister_driver(struct vme_driver *);
187 
188 
189 #endif /* _VME_H_ */
190 
191 

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