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26#ifndef _AP_BUS_H_
27#define _AP_BUS_H_
28
29#include <linux/device.h>
30#include <linux/mod_devicetable.h>
31#include <linux/types.h>
32
33#define AP_DEVICES 64
34#define AP_DOMAINS 256
35#define AP_RESET_TIMEOUT (HZ*0.7)
36#define AP_CONFIG_TIME 30
37#define AP_POLL_TIME 1
38
39extern int ap_domain_index;
40
41
42
43
44
45typedef unsigned int ap_qid_t;
46
47#define AP_MKQID(_device, _queue) (((_device) & 63) << 8 | ((_queue) & 255))
48#define AP_QID_DEVICE(_qid) (((_qid) >> 8) & 63)
49#define AP_QID_QUEUE(_qid) ((_qid) & 255)
50
51
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63
64
65struct ap_queue_status {
66 unsigned int queue_empty : 1;
67 unsigned int replies_waiting : 1;
68 unsigned int queue_full : 1;
69 unsigned int pad1 : 4;
70 unsigned int int_enabled : 1;
71 unsigned int response_code : 8;
72 unsigned int pad2 : 16;
73} __packed;
74
75
76static inline int ap_test_bit(unsigned int *ptr, unsigned int nr)
77{
78 return (*ptr & (0x80000000u >> nr)) != 0;
79}
80
81#define AP_RESPONSE_NORMAL 0x00
82#define AP_RESPONSE_Q_NOT_AVAIL 0x01
83#define AP_RESPONSE_RESET_IN_PROGRESS 0x02
84#define AP_RESPONSE_DECONFIGURED 0x03
85#define AP_RESPONSE_CHECKSTOPPED 0x04
86#define AP_RESPONSE_BUSY 0x05
87#define AP_RESPONSE_INVALID_ADDRESS 0x06
88#define AP_RESPONSE_OTHERWISE_CHANGED 0x07
89#define AP_RESPONSE_Q_FULL 0x10
90#define AP_RESPONSE_NO_PENDING_REPLY 0x10
91#define AP_RESPONSE_INDEX_TOO_BIG 0x11
92#define AP_RESPONSE_NO_FIRST_PART 0x13
93#define AP_RESPONSE_MESSAGE_TOO_BIG 0x15
94#define AP_RESPONSE_REQ_FAC_NOT_INST 0x16
95
96
97
98
99#define AP_DEVICE_TYPE_PCICC 3
100#define AP_DEVICE_TYPE_PCICA 4
101#define AP_DEVICE_TYPE_PCIXCC 5
102#define AP_DEVICE_TYPE_CEX2A 6
103#define AP_DEVICE_TYPE_CEX2C 7
104#define AP_DEVICE_TYPE_CEX3A 8
105#define AP_DEVICE_TYPE_CEX3C 9
106#define AP_DEVICE_TYPE_CEX4 10
107#define AP_DEVICE_TYPE_CEX5 11
108
109
110
111
112#define AP_FUNC_MEX4K 1
113#define AP_FUNC_CRT4K 2
114#define AP_FUNC_COPRO 3
115#define AP_FUNC_ACCEL 4
116#define AP_FUNC_EP11 5
117#define AP_FUNC_APXA 6
118
119
120
121
122#define AP_INTR_DISABLED 0
123#define AP_INTR_ENABLED 1
124
125
126
127
128enum ap_state {
129 AP_STATE_RESET_START,
130 AP_STATE_RESET_WAIT,
131 AP_STATE_SETIRQ_WAIT,
132 AP_STATE_IDLE,
133 AP_STATE_WORKING,
134 AP_STATE_QUEUE_FULL,
135 AP_STATE_SUSPEND_WAIT,
136 AP_STATE_BORKED,
137 NR_AP_STATES
138};
139
140
141
142
143enum ap_event {
144 AP_EVENT_POLL,
145 AP_EVENT_TIMEOUT,
146 NR_AP_EVENTS
147};
148
149
150
151
152enum ap_wait {
153 AP_WAIT_AGAIN,
154 AP_WAIT_TIMEOUT,
155 AP_WAIT_INTERRUPT,
156 AP_WAIT_NONE,
157 NR_AP_WAIT
158};
159
160struct ap_device;
161struct ap_message;
162
163struct ap_driver {
164 struct device_driver driver;
165 struct ap_device_id *ids;
166
167 int (*probe)(struct ap_device *);
168 void (*remove)(struct ap_device *);
169 int request_timeout;
170};
171
172#define to_ap_drv(x) container_of((x), struct ap_driver, driver)
173
174int ap_driver_register(struct ap_driver *, struct module *, char *);
175void ap_driver_unregister(struct ap_driver *);
176
177typedef enum ap_wait (ap_func_t)(struct ap_device *ap_dev);
178
179struct ap_device {
180 struct device device;
181 struct ap_driver *drv;
182 spinlock_t lock;
183 struct list_head list;
184
185 enum ap_state state;
186
187 ap_qid_t qid;
188 int queue_depth;
189 int device_type;
190 int raw_hwtype;
191 unsigned int functions;
192 struct timer_list timeout;
193
194 int interrupt;
195 int queue_count;
196
197 struct list_head pendingq;
198 int pendingq_count;
199 struct list_head requestq;
200 int requestq_count;
201 int total_request_count;
202
203 struct ap_message *reply;
204
205 void *private;
206};
207
208#define to_ap_dev(x) container_of((x), struct ap_device, device)
209
210struct ap_message {
211 struct list_head list;
212 unsigned long long psmid;
213 void *message;
214 size_t length;
215 int rc;
216
217 void *private;
218 unsigned int special:1;
219
220 void (*receive)(struct ap_device *, struct ap_message *,
221 struct ap_message *);
222};
223
224struct ap_config_info {
225 unsigned int special_command:1;
226 unsigned int ap_extended:1;
227 unsigned char reserved1:6;
228 unsigned char reserved2[15];
229 unsigned int apm[8];
230 unsigned int aqm[8];
231 unsigned int adm[8];
232 unsigned char reserved4[16];
233} __packed;
234
235#define AP_DEVICE(dt) \
236 .dev_type=(dt), \
237 .match_flags=AP_DEVICE_ID_MATCH_DEVICE_TYPE,
238
239
240
241
242
243
244static inline void ap_init_message(struct ap_message *ap_msg)
245{
246 ap_msg->psmid = 0;
247 ap_msg->length = 0;
248 ap_msg->rc = 0;
249 ap_msg->special = 0;
250 ap_msg->receive = NULL;
251}
252
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256
257
258int ap_send(ap_qid_t, unsigned long long, void *, size_t);
259int ap_recv(ap_qid_t, unsigned long long *, void *, size_t);
260
261void ap_queue_message(struct ap_device *ap_dev, struct ap_message *ap_msg);
262void ap_cancel_message(struct ap_device *ap_dev, struct ap_message *ap_msg);
263void ap_flush_queue(struct ap_device *ap_dev);
264void ap_bus_force_rescan(void);
265
266int ap_module_init(void);
267void ap_module_exit(void);
268
269#endif
270