7 #include "qmi-errors.h"
8 #include "qmi-errors.c"
10 bool cancel_all_requests
= false;
12 #define __qmi_service(_n) [__##_n] = _n
13 static const uint8_t qmi_services
[__QMI_SERVICE_LAST
] = {
24 void dump_packet(const char *prefix
, void *ptr
, int len
)
26 unsigned char *data
= ptr
;
29 fprintf(stderr
, "%s:", prefix
);
30 for (i
= 0; i
< len
; i
++)
31 fprintf(stderr
, " %02x", data
[i
]);
32 fprintf(stderr
, "\n");
37 qmi_get_service_idx(QmiService svc
)
41 for (i
= 0; i
< ARRAY_SIZE(qmi_services
); i
++)
42 if (qmi_services
[i
] == svc
)
48 static void __qmi_request_complete(struct qmi_dev
*qmi
, struct qmi_request
*req
, struct qmi_msg
*msg
)
60 tlv_buf
= qmi_msg_get_tlv_buf(msg
, &tlv_len
);
61 req
->ret
= qmi_check_message_status(tlv_buf
, tlv_len
);
65 req
->ret
= QMI_ERROR_CANCELLED
;
68 if (req
->cb
&& (msg
|| !req
->no_error_cb
))
69 req
->cb(qmi
, req
, msg
);
72 *req
->complete
= true;
73 uloop_cancelled
= true;
77 static void qmi_process_msg(struct qmi_dev
*qmi
, struct qmi_msg
*msg
)
79 struct qmi_request
*req
;
82 if (msg
->qmux
.service
== QMI_SERVICE_CTL
)
83 tid
= msg
->ctl
.transaction
;
85 tid
= le16_to_cpu(msg
->svc
.transaction
);
87 list_for_each_entry(req
, &qmi
->req
, list
) {
88 if (req
->service
!= msg
->qmux
.service
)
94 __qmi_request_complete(qmi
, req
, msg
);
99 static void qmi_notify_read(struct ustream
*us
, int bytes
)
101 struct qmi_dev
*qmi
= container_of(us
, struct qmi_dev
, sf
.stream
);
107 buf
= ustream_get_read_buf(us
, &len
);
111 if (len
< offsetof(struct qmi_msg
, flags
))
114 msg
= (struct qmi_msg
*) buf
;
115 msg_len
= le16_to_cpu(msg
->qmux
.len
) + 1;
119 dump_packet("Received packet", msg
, msg_len
);
120 qmi_process_msg(qmi
, msg
);
121 ustream_consume(us
, msg_len
);
125 int qmi_request_start(struct qmi_dev
*qmi
, struct qmi_request
*req
, struct qmi_msg
*msg
, request_cb cb
)
127 int len
= qmi_complete_request_message(msg
);
130 memset(req
, 0, sizeof(*req
));
132 req
->service
= msg
->qmux
.service
;
133 if (req
->service
== QMI_SERVICE_CTL
) {
134 tid
= qmi
->ctl_tid
++;
135 msg
->ctl
.transaction
= tid
;
137 int idx
= qmi_get_service_idx(req
->service
);
142 tid
= qmi
->service_data
[idx
].tid
++;
143 msg
->svc
.transaction
= cpu_to_le16(tid
);
144 msg
->qmux
.client
= qmi
->service_data
[idx
].client_id
;
150 list_add(&req
->list
, &qmi
->req
);
152 dump_packet("Send packet", msg
, len
);
153 ustream_write(&qmi
->sf
.stream
, (void *) msg
, len
, false);
157 void qmi_request_cancel(struct qmi_dev
*qmi
, struct qmi_request
*req
)
160 __qmi_request_complete(qmi
, req
, NULL
);
163 int qmi_request_wait(struct qmi_dev
*qmi
, struct qmi_request
*req
)
165 bool complete
= false;
172 *req
->complete
= true;
174 req
->complete
= &complete
;
176 cancelled
= uloop_cancelled
;
177 uloop_cancelled
= false;
180 if (cancel_all_requests
)
181 qmi_request_cancel(qmi
, req
);
183 uloop_cancelled
= cancelled
;
186 if (req
->complete
== &complete
)
187 req
->complete
= NULL
;
192 struct qmi_connect_request
{
193 struct qmi_request req
;
197 static void qmi_connect_service_cb(struct qmi_dev
*qmi
, struct qmi_request
*req
, struct qmi_msg
*msg
)
199 struct qmi_ctl_allocate_cid_response res
;
200 struct qmi_connect_request
*creq
= container_of(req
, struct qmi_connect_request
, req
);
205 qmi_parse_ctl_allocate_cid_response(msg
, &res
);
206 creq
->cid
= res
.data
.allocation_info
.cid
;
209 int qmi_service_connect(struct qmi_dev
*qmi
, QmiService svc
, int client_id
)
211 struct qmi_ctl_allocate_cid_request creq
= {
212 QMI_INIT(service
, svc
)
214 struct qmi_connect_request req
;
215 int idx
= qmi_get_service_idx(svc
);
216 struct qmi_msg
*msg
= &msgbuf
.msg
;
221 if (qmi
->service_connected
& (1 << idx
))
225 qmi_set_ctl_allocate_cid_request(msg
, &creq
);
226 qmi_request_start(qmi
, &req
.req
, msg
, qmi_connect_service_cb
);
227 qmi_request_wait(qmi
, &req
.req
);
234 qmi
->service_keep_cid
|= (1 << idx
);
237 qmi
->service_data
[idx
].connected
= true;
238 qmi
->service_data
[idx
].client_id
= client_id
;
239 qmi
->service_data
[idx
].tid
= 1;
240 qmi
->service_connected
|= (1 << idx
);
245 static void __qmi_service_disconnect(struct qmi_dev
*qmi
, int idx
)
247 int client_id
= qmi
->service_data
[idx
].client_id
;
248 struct qmi_ctl_release_cid_request creq
= {
249 QMI_INIT_SEQUENCE(release_info
,
250 .service
= qmi_services
[idx
],
254 struct qmi_request req
;
255 struct qmi_msg
*msg
= &msgbuf
.msg
;
257 qmi
->service_connected
&= ~(1 << idx
);
258 qmi
->service_data
[idx
].client_id
= -1;
259 qmi
->service_data
[idx
].tid
= 0;
261 qmi_set_ctl_release_cid_request(msg
, &creq
);
262 qmi_request_start(qmi
, &req
, msg
, NULL
);
263 qmi_request_wait(qmi
, &req
);
266 int qmi_service_release_client_id(struct qmi_dev
*qmi
, QmiService svc
)
268 int idx
= qmi_get_service_idx(svc
);
269 qmi
->service_release_cid
|= 1 << idx
;
273 static void qmi_close_all_services(struct qmi_dev
*qmi
)
275 uint32_t connected
= qmi
->service_connected
;
278 qmi
->service_keep_cid
&= ~qmi
->service_release_cid
;
279 for (idx
= 0; connected
; idx
++, connected
>>= 1) {
280 if (!(connected
& 1))
283 if (qmi
->service_keep_cid
& (1 << idx
))
286 __qmi_service_disconnect(qmi
, idx
);
290 int qmi_service_get_client_id(struct qmi_dev
*qmi
, QmiService svc
)
292 int idx
= qmi_get_service_idx(svc
);
297 qmi
->service_keep_cid
|= (1 << idx
);
298 return qmi
->service_data
[idx
].client_id
;
301 int qmi_device_open(struct qmi_dev
*qmi
, const char *path
)
303 struct ustream
*us
= &qmi
->sf
.stream
;
308 fd
= open(path
, O_RDWR
| O_EXCL
| O_NONBLOCK
| O_NOCTTY
);
312 us
->notify_read
= qmi_notify_read
;
313 ustream_fd_init(&qmi
->sf
, fd
);
314 INIT_LIST_HEAD(&qmi
->req
);
320 void qmi_device_close(struct qmi_dev
*qmi
)
322 struct qmi_request
*req
;
324 qmi_close_all_services(qmi
);
325 ustream_free(&qmi
->sf
.stream
);
326 close(qmi
->sf
.fd
.fd
);
328 while (!list_empty(&qmi
->req
)) {
329 req
= list_first_entry(&qmi
->req
, struct qmi_request
, list
);
330 qmi_request_cancel(qmi
, req
);
334 QmiService
qmi_service_get_by_name(const char *str
)
336 static const struct {
340 { "dms", QMI_SERVICE_DMS
},
341 { "nas", QMI_SERVICE_NAS
},
342 { "pds", QMI_SERVICE_PDS
},
343 { "wds", QMI_SERVICE_WDS
},
344 { "wms", QMI_SERVICE_WMS
},
345 { "wda", QMI_SERVICE_WDA
},
349 for (i
= 0; i
< ARRAY_SIZE(services
); i
++) {
350 if (!strcasecmp(str
, services
[i
].name
))
351 return services
[i
].svc
;
357 const char *qmi_get_error_str(int code
)
361 for (i
= 0; i
< ARRAY_SIZE(qmi_errors
); i
++) {
362 if (qmi_errors
[i
].code
== code
)
363 return qmi_errors
[i
].text
;
366 return "Unknown error";