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70a50ebd MP |
1 | /* |
2 | * RapidIO interconnect services | |
3 | * (RapidIO Interconnect Specification, http://www.rapidio.org) | |
4 | * | |
5 | * Copyright 2005 MontaVista Software, Inc. | |
6 | * Matt Porter <mporter@kernel.crashing.org> | |
7 | * | |
8 | * This program is free software; you can redistribute it and/or modify it | |
9 | * under the terms of the GNU General Public License as published by the | |
10 | * Free Software Foundation; either version 2 of the License, or (at your | |
11 | * option) any later version. | |
12 | */ | |
13 | ||
14 | #ifndef LINUX_RIO_H | |
15 | #define LINUX_RIO_H | |
16 | ||
70a50ebd | 17 | #include <linux/types.h> |
70a50ebd MP |
18 | #include <linux/ioport.h> |
19 | #include <linux/list.h> | |
20 | #include <linux/errno.h> | |
21 | #include <linux/device.h> | |
22 | #include <linux/rio_regs.h> | |
e42d98eb AB |
23 | #ifdef CONFIG_RAPIDIO_DMA_ENGINE |
24 | #include <linux/dmaengine.h> | |
25 | #endif | |
70a50ebd | 26 | |
70a50ebd | 27 | #define RIO_NO_HOPCOUNT -1 |
c70555b0 | 28 | #define RIO_INVALID_DESTID 0xffff |
70a50ebd | 29 | |
569fccb6 | 30 | #define RIO_MAX_MPORTS 8 |
70a50ebd MP |
31 | #define RIO_MAX_MPORT_RESOURCES 16 |
32 | #define RIO_MAX_DEV_RESOURCES 16 | |
ed43f44f | 33 | #define RIO_MAX_MPORT_NAME 40 |
70a50ebd MP |
34 | |
35 | #define RIO_GLOBAL_TABLE 0xff /* Indicates access of a switch's | |
36 | global routing table if it | |
37 | has multiple (or per port) | |
38 | tables */ | |
39 | ||
40 | #define RIO_INVALID_ROUTE 0xff /* Indicates that a route table | |
41 | entry is invalid (no route | |
42 | exists for the device ID) */ | |
43 | ||
e0423236 ZW |
44 | #define RIO_MAX_ROUTE_ENTRIES(size) (size ? (1 << 16) : (1 << 8)) |
45 | #define RIO_ANY_DESTID(size) (size ? 0xffff : 0xff) | |
70a50ebd MP |
46 | |
47 | #define RIO_MAX_MBOX 4 | |
48 | #define RIO_MAX_MSG_SIZE 0x1000 | |
49 | ||
50 | /* | |
51 | * Error values that may be returned by RIO functions. | |
52 | */ | |
53 | #define RIO_SUCCESSFUL 0x00 | |
54 | #define RIO_BAD_SIZE 0x81 | |
55 | ||
56 | /* | |
57 | * For RIO devices, the region numbers are assigned this way: | |
58 | * | |
59 | * 0 RapidIO outbound doorbells | |
60 | * 1-15 RapidIO memory regions | |
61 | * | |
62 | * For RIO master ports, the region number are assigned this way: | |
63 | * | |
64 | * 0 RapidIO inbound doorbells | |
65 | * 1 RapidIO inbound mailboxes | |
fdb8d561 | 66 | * 2 RapidIO outbound mailboxes |
70a50ebd MP |
67 | */ |
68 | #define RIO_DOORBELL_RESOURCE 0 | |
69 | #define RIO_INB_MBOX_RESOURCE 1 | |
70 | #define RIO_OUTB_MBOX_RESOURCE 2 | |
71 | ||
e5cabeb3 AB |
72 | #define RIO_PW_MSG_SIZE 64 |
73 | ||
e6536927 AB |
74 | /* |
75 | * A component tag value (stored in the component tag CSR) is used as device's | |
76 | * unique identifier assigned during enumeration. Besides being used for | |
77 | * identifying switches (which do not have device ID register), it also is used | |
78 | * by error management notification and therefore has to be assigned | |
79 | * to endpoints as well. | |
80 | */ | |
81 | #define RIO_CTAG_RESRVD 0xfffe0000 /* Reserved */ | |
82 | #define RIO_CTAG_UDEVID 0x0001ffff /* Unique device identifier */ | |
83 | ||
70a50ebd | 84 | extern struct bus_type rio_bus_type; |
2c70f022 | 85 | extern struct device rio_bus; |
70a50ebd MP |
86 | |
87 | struct rio_mport; | |
ded05782 | 88 | struct rio_dev; |
e5cabeb3 | 89 | union rio_pw_msg; |
70a50ebd | 90 | |
ded05782 AB |
91 | /** |
92 | * struct rio_switch - RIO switch info | |
93 | * @node: Node in global list of switches | |
94 | * @switchid: Switch ID that is unique across a network | |
95 | * @route_table: Copy of switch routing table | |
96 | * @port_ok: Status of each port (one bit per port) - OK=1 or UNINIT=0 | |
97 | * @add_entry: Callback for switch-specific route add function | |
98 | * @get_entry: Callback for switch-specific route get function | |
99 | * @clr_table: Callback for switch-specific clear route table function | |
100 | * @set_domain: Callback for switch-specific domain setting function | |
101 | * @get_domain: Callback for switch-specific domain get function | |
102 | * @em_init: Callback for switch-specific error management init function | |
103 | * @em_handle: Callback for switch-specific error management handler function | |
104 | * @sw_sysfs: Callback that initializes switch-specific sysfs attributes | |
105 | * @nextdev: Array of per-port pointers to the next attached device | |
106 | */ | |
107 | struct rio_switch { | |
108 | struct list_head node; | |
109 | u16 switchid; | |
110 | u8 *route_table; | |
111 | u32 port_ok; | |
112 | int (*add_entry) (struct rio_mport *mport, u16 destid, u8 hopcount, | |
113 | u16 table, u16 route_destid, u8 route_port); | |
114 | int (*get_entry) (struct rio_mport *mport, u16 destid, u8 hopcount, | |
115 | u16 table, u16 route_destid, u8 *route_port); | |
116 | int (*clr_table) (struct rio_mport *mport, u16 destid, u8 hopcount, | |
117 | u16 table); | |
118 | int (*set_domain) (struct rio_mport *mport, u16 destid, u8 hopcount, | |
119 | u8 sw_domain); | |
120 | int (*get_domain) (struct rio_mport *mport, u16 destid, u8 hopcount, | |
121 | u8 *sw_domain); | |
122 | int (*em_init) (struct rio_dev *dev); | |
123 | int (*em_handle) (struct rio_dev *dev, u8 swport); | |
124 | int (*sw_sysfs) (struct rio_dev *dev, int create); | |
125 | struct rio_dev *nextdev[0]; | |
126 | }; | |
127 | ||
70a50ebd MP |
128 | /** |
129 | * struct rio_dev - RIO device info | |
130 | * @global_list: Node in list of all RIO devices | |
131 | * @net_list: Node in list of RIO devices in a network | |
132 | * @net: Network this device is a part of | |
133 | * @did: Device ID | |
134 | * @vid: Vendor ID | |
135 | * @device_rev: Device revision | |
136 | * @asm_did: Assembly device ID | |
137 | * @asm_vid: Assembly vendor ID | |
138 | * @asm_rev: Assembly revision | |
139 | * @efptr: Extended feature pointer | |
140 | * @pef: Processing element features | |
141 | * @swpinfo: Switch port info | |
142 | * @src_ops: Source operation capabilities | |
143 | * @dst_ops: Destination operation capabilities | |
97ef6f74 RD |
144 | * @comp_tag: RIO component tag |
145 | * @phys_efptr: RIO device extended features pointer | |
146 | * @em_efptr: RIO Error Management features pointer | |
fa78cc51 | 147 | * @dma_mask: Mask of bits of RIO address this device implements |
70a50ebd MP |
148 | * @driver: Driver claiming this device |
149 | * @dev: Device model device | |
150 | * @riores: RIO resources this device owns | |
97ef6f74 | 151 | * @pwcback: port-write callback function for this device |
a93192a5 AB |
152 | * @destid: Network destination ID (or associated destid for switch) |
153 | * @hopcount: Hopcount to this device | |
68fe4df5 | 154 | * @prev: Previous RIO device connected to the current one |
ded05782 | 155 | * @rswitch: struct rio_switch (if valid for this device) |
70a50ebd MP |
156 | */ |
157 | struct rio_dev { | |
158 | struct list_head global_list; /* node in list of all RIO devices */ | |
159 | struct list_head net_list; /* node in per net list */ | |
160 | struct rio_net *net; /* RIO net this device resides in */ | |
161 | u16 did; | |
162 | u16 vid; | |
163 | u32 device_rev; | |
164 | u16 asm_did; | |
165 | u16 asm_vid; | |
166 | u16 asm_rev; | |
167 | u16 efptr; | |
168 | u32 pef; | |
ae05cbd5 | 169 | u32 swpinfo; |
70a50ebd MP |
170 | u32 src_ops; |
171 | u32 dst_ops; | |
e5cabeb3 AB |
172 | u32 comp_tag; |
173 | u32 phys_efptr; | |
174 | u32 em_efptr; | |
fa78cc51 | 175 | u64 dma_mask; |
70a50ebd MP |
176 | struct rio_driver *driver; /* RIO driver claiming this device */ |
177 | struct device dev; /* LDM device structure */ | |
178 | struct resource riores[RIO_MAX_DEV_RESOURCES]; | |
e5cabeb3 | 179 | int (*pwcback) (struct rio_dev *rdev, union rio_pw_msg *msg, int step); |
70a50ebd | 180 | u16 destid; |
a93192a5 | 181 | u8 hopcount; |
68fe4df5 | 182 | struct rio_dev *prev; |
ded05782 | 183 | struct rio_switch rswitch[0]; /* RIO switch info */ |
70a50ebd MP |
184 | }; |
185 | ||
186 | #define rio_dev_g(n) list_entry(n, struct rio_dev, global_list) | |
187 | #define rio_dev_f(n) list_entry(n, struct rio_dev, net_list) | |
188 | #define to_rio_dev(n) container_of(n, struct rio_dev, dev) | |
ded05782 | 189 | #define sw_to_rio_dev(n) container_of(n, struct rio_dev, rswitch[0]) |
70a50ebd MP |
190 | |
191 | /** | |
192 | * struct rio_msg - RIO message event | |
193 | * @res: Mailbox resource | |
194 | * @mcback: Message event callback | |
195 | */ | |
196 | struct rio_msg { | |
197 | struct resource *res; | |
6978bbc0 | 198 | void (*mcback) (struct rio_mport * mport, void *dev_id, int mbox, int slot); |
70a50ebd MP |
199 | }; |
200 | ||
201 | /** | |
202 | * struct rio_dbell - RIO doorbell event | |
203 | * @node: Node in list of doorbell events | |
204 | * @res: Doorbell resource | |
205 | * @dinb: Doorbell event callback | |
6978bbc0 | 206 | * @dev_id: Device specific pointer to pass on event |
70a50ebd MP |
207 | */ |
208 | struct rio_dbell { | |
209 | struct list_head node; | |
210 | struct resource *res; | |
6978bbc0 MP |
211 | void (*dinb) (struct rio_mport *mport, void *dev_id, u16 src, u16 dst, u16 info); |
212 | void *dev_id; | |
70a50ebd MP |
213 | }; |
214 | ||
61b26917 ZW |
215 | enum rio_phy_type { |
216 | RIO_PHY_PARALLEL, | |
217 | RIO_PHY_SERIAL, | |
218 | }; | |
219 | ||
70a50ebd MP |
220 | /** |
221 | * struct rio_mport - RIO master port info | |
222 | * @dbells: List of doorbell events | |
223 | * @node: Node in global list of master ports | |
224 | * @nnode: Node in network list of master ports | |
225 | * @iores: I/O mem resource that this master port interface owns | |
226 | * @riores: RIO resources that this master port interfaces owns | |
227 | * @inb_msg: RIO inbound message event descriptors | |
228 | * @outb_msg: RIO outbound message event descriptors | |
229 | * @host_deviceid: Host device ID associated with this master port | |
230 | * @ops: configuration space functions | |
231 | * @id: Port ID, unique among all ports | |
232 | * @index: Port index, unique among all port interfaces of the same type | |
9941d945 RD |
233 | * @sys_size: RapidIO common transport system size |
234 | * @phy_type: RapidIO phy type | |
af84ca38 | 235 | * @phys_efptr: RIO port extended features pointer |
70a50ebd | 236 | * @name: Port name string |
ad1e9380 | 237 | * @priv: Master port private data |
fe50c927 | 238 | * @dma: DMA device associated with mport |
a11650e1 | 239 | * @nscan: RapidIO network enumeration/discovery operations |
70a50ebd MP |
240 | */ |
241 | struct rio_mport { | |
242 | struct list_head dbells; /* list of doorbell events */ | |
243 | struct list_head node; /* node in global list of ports */ | |
244 | struct list_head nnode; /* node in net list of ports */ | |
245 | struct resource iores; | |
246 | struct resource riores[RIO_MAX_MPORT_RESOURCES]; | |
247 | struct rio_msg inb_msg[RIO_MAX_MBOX]; | |
248 | struct rio_msg outb_msg[RIO_MAX_MBOX]; | |
249 | int host_deviceid; /* Host device ID */ | |
f8f06269 | 250 | struct rio_ops *ops; /* low-level architecture-dependent routines */ |
70a50ebd MP |
251 | unsigned char id; /* port ID, unique among all ports */ |
252 | unsigned char index; /* port index, unique among all port | |
253 | interfaces of the same type */ | |
e0423236 ZW |
254 | unsigned int sys_size; /* RapidIO common transport system size. |
255 | * 0 - Small size. 256 devices. | |
256 | * 1 - Large size, 65536 devices. | |
257 | */ | |
61b26917 | 258 | enum rio_phy_type phy_type; /* RapidIO phy type */ |
af84ca38 | 259 | u32 phys_efptr; |
ed43f44f | 260 | unsigned char name[RIO_MAX_MPORT_NAME]; |
ad1e9380 | 261 | void *priv; /* Master port private data */ |
e42d98eb AB |
262 | #ifdef CONFIG_RAPIDIO_DMA_ENGINE |
263 | struct dma_device dma; | |
264 | #endif | |
a11650e1 | 265 | struct rio_scan *nscan; |
70a50ebd MP |
266 | }; |
267 | ||
bc8fcfea AB |
268 | /* |
269 | * Enumeration/discovery control flags | |
270 | */ | |
271 | #define RIO_SCAN_ENUM_NO_WAIT 0x00000001 /* Do not wait for enum completed */ | |
272 | ||
de74e00a AB |
273 | struct rio_id_table { |
274 | u16 start; /* logical minimal id */ | |
de74e00a AB |
275 | u32 max; /* max number of IDs in table */ |
276 | spinlock_t lock; | |
277 | unsigned long *table; | |
278 | }; | |
279 | ||
70a50ebd MP |
280 | /** |
281 | * struct rio_net - RIO network info | |
282 | * @node: Node in global list of RIO networks | |
283 | * @devices: List of devices in this network | |
2ca3cb50 | 284 | * @switches: List of switches in this netowrk |
70a50ebd MP |
285 | * @mports: List of master ports accessing this network |
286 | * @hport: Default port for accessing this network | |
287 | * @id: RIO network ID | |
2ca3cb50 | 288 | * @destid_table: destID allocation table |
70a50ebd MP |
289 | */ |
290 | struct rio_net { | |
291 | struct list_head node; /* node in list of networks */ | |
292 | struct list_head devices; /* list of devices in this net */ | |
a7071efc | 293 | struct list_head switches; /* list of switches in this net */ |
70a50ebd MP |
294 | struct list_head mports; /* list of ports accessing net */ |
295 | struct rio_mport *hport; /* primary port for accessing net */ | |
296 | unsigned char id; /* RIO network ID */ | |
de74e00a | 297 | struct rio_id_table destid_table; /* destID allocation table */ |
70a50ebd MP |
298 | }; |
299 | ||
ac38d723 AB |
300 | /* Definitions used by switch sysfs initialization callback */ |
301 | #define RIO_SW_SYSFS_CREATE 1 /* Create switch attributes */ | |
302 | #define RIO_SW_SYSFS_REMOVE 0 /* Remove switch attributes */ | |
303 | ||
70a50ebd MP |
304 | /* Low-level architecture-dependent routines */ |
305 | ||
306 | /** | |
307 | * struct rio_ops - Low-level RIO configuration space operations | |
308 | * @lcread: Callback to perform local (master port) read of config space. | |
309 | * @lcwrite: Callback to perform local (master port) write of config space. | |
310 | * @cread: Callback to perform network read of config space. | |
311 | * @cwrite: Callback to perform network write of config space. | |
312 | * @dsend: Callback to send a doorbell message. | |
e5cabeb3 | 313 | * @pwenable: Callback to enable/disable port-write message handling. |
f8f06269 AB |
314 | * @open_outb_mbox: Callback to initialize outbound mailbox. |
315 | * @close_outb_mbox: Callback to shut down outbound mailbox. | |
316 | * @open_inb_mbox: Callback to initialize inbound mailbox. | |
317 | * @close_inb_mbox: Callback to shut down inbound mailbox. | |
318 | * @add_outb_message: Callback to add a message to an outbound mailbox queue. | |
319 | * @add_inb_buffer: Callback to add a buffer to an inbound mailbox queue. | |
320 | * @get_inb_message: Callback to get a message from an inbound mailbox queue. | |
da1589f0 AB |
321 | * @map_inb: Callback to map RapidIO address region into local memory space. |
322 | * @unmap_inb: Callback to unmap RapidIO address region mapped with map_inb(). | |
70a50ebd MP |
323 | */ |
324 | struct rio_ops { | |
ad1e9380 ZW |
325 | int (*lcread) (struct rio_mport *mport, int index, u32 offset, int len, |
326 | u32 *data); | |
327 | int (*lcwrite) (struct rio_mport *mport, int index, u32 offset, int len, | |
328 | u32 data); | |
329 | int (*cread) (struct rio_mport *mport, int index, u16 destid, | |
330 | u8 hopcount, u32 offset, int len, u32 *data); | |
331 | int (*cwrite) (struct rio_mport *mport, int index, u16 destid, | |
332 | u8 hopcount, u32 offset, int len, u32 data); | |
333 | int (*dsend) (struct rio_mport *mport, int index, u16 destid, u16 data); | |
e5cabeb3 | 334 | int (*pwenable) (struct rio_mport *mport, int enable); |
f8f06269 AB |
335 | int (*open_outb_mbox)(struct rio_mport *mport, void *dev_id, |
336 | int mbox, int entries); | |
337 | void (*close_outb_mbox)(struct rio_mport *mport, int mbox); | |
338 | int (*open_inb_mbox)(struct rio_mport *mport, void *dev_id, | |
339 | int mbox, int entries); | |
340 | void (*close_inb_mbox)(struct rio_mport *mport, int mbox); | |
341 | int (*add_outb_message)(struct rio_mport *mport, struct rio_dev *rdev, | |
342 | int mbox, void *buffer, size_t len); | |
343 | int (*add_inb_buffer)(struct rio_mport *mport, int mbox, void *buf); | |
344 | void *(*get_inb_message)(struct rio_mport *mport, int mbox); | |
da1589f0 AB |
345 | int (*map_inb)(struct rio_mport *mport, dma_addr_t lstart, |
346 | u64 rstart, u32 size, u32 flags); | |
347 | void (*unmap_inb)(struct rio_mport *mport, dma_addr_t lstart); | |
70a50ebd MP |
348 | }; |
349 | ||
350 | #define RIO_RESOURCE_MEM 0x00000100 | |
351 | #define RIO_RESOURCE_DOORBELL 0x00000200 | |
352 | #define RIO_RESOURCE_MAILBOX 0x00000400 | |
353 | ||
354 | #define RIO_RESOURCE_CACHEABLE 0x00010000 | |
355 | #define RIO_RESOURCE_PCI 0x00020000 | |
356 | ||
357 | #define RIO_RESOURCE_BUSY 0x80000000 | |
358 | ||
359 | /** | |
360 | * struct rio_driver - RIO driver info | |
361 | * @node: Node in list of drivers | |
362 | * @name: RIO driver name | |
363 | * @id_table: RIO device ids to be associated with this driver | |
364 | * @probe: RIO device inserted | |
365 | * @remove: RIO device removed | |
366 | * @suspend: RIO device suspended | |
367 | * @resume: RIO device awakened | |
368 | * @enable_wake: RIO device enable wake event | |
369 | * @driver: LDM driver struct | |
370 | * | |
371 | * Provides info on a RIO device driver for insertion/removal and | |
372 | * power management purposes. | |
373 | */ | |
374 | struct rio_driver { | |
375 | struct list_head node; | |
376 | char *name; | |
377 | const struct rio_device_id *id_table; | |
378 | int (*probe) (struct rio_dev * dev, const struct rio_device_id * id); | |
379 | void (*remove) (struct rio_dev * dev); | |
380 | int (*suspend) (struct rio_dev * dev, u32 state); | |
381 | int (*resume) (struct rio_dev * dev); | |
382 | int (*enable_wake) (struct rio_dev * dev, u32 state, int enable); | |
383 | struct device_driver driver; | |
384 | }; | |
385 | ||
386 | #define to_rio_driver(drv) container_of(drv,struct rio_driver, driver) | |
387 | ||
388 | /** | |
389 | * struct rio_device_id - RIO device identifier | |
390 | * @did: RIO device ID | |
391 | * @vid: RIO vendor ID | |
392 | * @asm_did: RIO assembly device ID | |
393 | * @asm_vid: RIO assembly vendor ID | |
394 | * | |
395 | * Identifies a RIO device based on both the device/vendor IDs and | |
396 | * the assembly device/vendor IDs. | |
397 | */ | |
398 | struct rio_device_id { | |
399 | u16 did, vid; | |
400 | u16 asm_did, asm_vid; | |
401 | }; | |
402 | ||
403 | /** | |
058f88d6 | 404 | * struct rio_switch_ops - Per-switch operations |
70a50ebd MP |
405 | * @vid: RIO vendor ID |
406 | * @did: RIO device ID | |
058f88d6 | 407 | * @init_hook: Callback that performs switch device initialization |
70a50ebd | 408 | * |
058f88d6 AB |
409 | * Defines the operations that are necessary to initialize/control |
410 | * a particular RIO switch device. | |
70a50ebd | 411 | */ |
058f88d6 | 412 | struct rio_switch_ops { |
70a50ebd | 413 | u16 vid, did; |
058f88d6 | 414 | int (*init_hook) (struct rio_dev *rdev, int do_enum); |
e5cabeb3 AB |
415 | }; |
416 | ||
417 | union rio_pw_msg { | |
418 | struct { | |
419 | u32 comptag; /* Component Tag CSR */ | |
420 | u32 errdetect; /* Port N Error Detect CSR */ | |
421 | u32 is_port; /* Implementation specific + PortID */ | |
422 | u32 ltlerrdet; /* LTL Error Detect CSR */ | |
423 | u32 padding[12]; | |
424 | } em; | |
425 | u32 raw[RIO_PW_MSG_SIZE/sizeof(u32)]; | |
426 | }; | |
427 | ||
e42d98eb AB |
428 | #ifdef CONFIG_RAPIDIO_DMA_ENGINE |
429 | ||
fe50c927 | 430 | /* |
e42d98eb AB |
431 | * enum rio_write_type - RIO write transaction types used in DMA transfers |
432 | * | |
433 | * Note: RapidIO specification defines write (NWRITE) and | |
434 | * write-with-response (NWRITE_R) data transfer operations. | |
435 | * Existing DMA controllers that service RapidIO may use one of these operations | |
436 | * for entire data transfer or their combination with only the last data packet | |
437 | * requires response. | |
438 | */ | |
439 | enum rio_write_type { | |
440 | RDW_DEFAULT, /* default method used by DMA driver */ | |
441 | RDW_ALL_NWRITE, /* all packets use NWRITE */ | |
442 | RDW_ALL_NWRITE_R, /* all packets use NWRITE_R */ | |
443 | RDW_LAST_NWRITE_R, /* last packet uses NWRITE_R, others - NWRITE */ | |
444 | }; | |
445 | ||
446 | struct rio_dma_ext { | |
447 | u16 destid; | |
448 | u64 rio_addr; /* low 64-bits of 66-bit RapidIO address */ | |
449 | u8 rio_addr_u; /* upper 2-bits of 66-bit RapidIO address */ | |
450 | enum rio_write_type wr_type; /* preferred RIO write operation type */ | |
451 | }; | |
452 | ||
453 | struct rio_dma_data { | |
454 | /* Local data (as scatterlist) */ | |
455 | struct scatterlist *sg; /* I/O scatter list */ | |
456 | unsigned int sg_len; /* size of scatter list */ | |
457 | /* Remote device address (flat buffer) */ | |
458 | u64 rio_addr; /* low 64-bits of 66-bit RapidIO address */ | |
459 | u8 rio_addr_u; /* upper 2-bits of 66-bit RapidIO address */ | |
460 | enum rio_write_type wr_type; /* preferred RIO write operation type */ | |
461 | }; | |
462 | ||
463 | static inline struct rio_mport *dma_to_mport(struct dma_device *ddev) | |
464 | { | |
465 | return container_of(ddev, struct rio_mport, dma); | |
466 | } | |
467 | #endif /* CONFIG_RAPIDIO_DMA_ENGINE */ | |
468 | ||
a11650e1 AB |
469 | /** |
470 | * struct rio_scan - RIO enumeration and discovery operations | |
471 | * @enumerate: Callback to perform RapidIO fabric enumeration. | |
472 | * @discover: Callback to perform RapidIO fabric discovery. | |
473 | */ | |
474 | struct rio_scan { | |
bc8fcfea AB |
475 | int (*enumerate)(struct rio_mport *mport, u32 flags); |
476 | int (*discover)(struct rio_mport *mport, u32 flags); | |
a11650e1 AB |
477 | }; |
478 | ||
70a50ebd | 479 | /* Architecture and hardware-specific functions */ |
59f99965 | 480 | extern int rio_register_mport(struct rio_mport *); |
6978bbc0 | 481 | extern int rio_open_inb_mbox(struct rio_mport *, void *, int, int); |
70a50ebd | 482 | extern void rio_close_inb_mbox(struct rio_mport *, int); |
6978bbc0 | 483 | extern int rio_open_outb_mbox(struct rio_mport *, void *, int, int); |
70a50ebd MP |
484 | extern void rio_close_outb_mbox(struct rio_mport *, int); |
485 | ||
70a50ebd | 486 | #endif /* LINUX_RIO_H */ |