1*5113495bSYour Name /*
2*5113495bSYour Name * Copyright (c) 2019, 2021 The Linux Foundation. All rights reserved.
3*5113495bSYour Name * Copyright (c) 2024 Qualcomm Innovation Center, Inc. All rights reserved.
4*5113495bSYour Name *
5*5113495bSYour Name * Permission to use, copy, modify, and/or distribute this software for
6*5113495bSYour Name * any purpose with or without fee is hereby granted, provided that the
7*5113495bSYour Name * above copyright notice and this permission notice appear in all
8*5113495bSYour Name * copies.
9*5113495bSYour Name *
10*5113495bSYour Name * THE SOFTWARE IS PROVIDED "AS IS" AND THE AUTHOR DISCLAIMS ALL
11*5113495bSYour Name * WARRANTIES WITH REGARD TO THIS SOFTWARE INCLUDING ALL IMPLIED
12*5113495bSYour Name * WARRANTIES OF MERCHANTABILITY AND FITNESS. IN NO EVENT SHALL THE
13*5113495bSYour Name * AUTHOR BE LIABLE FOR ANY SPECIAL, DIRECT, INDIRECT, OR CONSEQUENTIAL
14*5113495bSYour Name * DAMAGES OR ANY DAMAGES WHATSOEVER RESULTING FROM LOSS OF USE, DATA OR
15*5113495bSYour Name * PROFITS, WHETHER IN AN ACTION OF CONTRACT, NEGLIGENCE OR OTHER
16*5113495bSYour Name * TORTIOUS ACTION, ARISING OUT OF OR IN CONNECTION WITH THE USE OR
17*5113495bSYour Name * PERFORMANCE OF THIS SOFTWARE.
18*5113495bSYour Name */
19*5113495bSYour Name
20*5113495bSYour Name #include "linux/device.h"
21*5113495bSYour Name #include "__osif_driver_sync.h"
22*5113495bSYour Name #include "__osif_psoc_sync.h"
23*5113495bSYour Name #include "osif_psoc_sync.h"
24*5113495bSYour Name #include "qdf_lock.h"
25*5113495bSYour Name #include "qdf_status.h"
26*5113495bSYour Name #include "qdf_types.h"
27*5113495bSYour Name #include "wlan_dsc_psoc.h"
28*5113495bSYour Name #include "wlan_dsc_vdev.h"
29*5113495bSYour Name #include "__wlan_dsc.h"
30*5113495bSYour Name
31*5113495bSYour Name /**
32*5113495bSYour Name * struct osif_psoc_sync - a psoc synchronization context
33*5113495bSYour Name * @dev: the device used as a lookup key
34*5113495bSYour Name * @dsc_psoc: the dsc_psoc used for synchronization
35*5113495bSYour Name * @in_use: indicates if the context is being used
36*5113495bSYour Name */
37*5113495bSYour Name struct osif_psoc_sync {
38*5113495bSYour Name struct device *dev;
39*5113495bSYour Name struct dsc_psoc *dsc_psoc;
40*5113495bSYour Name bool in_use;
41*5113495bSYour Name };
42*5113495bSYour Name
43*5113495bSYour Name static struct osif_psoc_sync __osif_psoc_sync_arr[WLAN_MAX_PSOCS];
44*5113495bSYour Name static qdf_spinlock_t __osif_psoc_sync_lock;
45*5113495bSYour Name
46*5113495bSYour Name #define osif_psoc_sync_lock_create() qdf_spinlock_create(&__osif_psoc_sync_lock)
47*5113495bSYour Name #define osif_psoc_sync_lock_destroy() \
48*5113495bSYour Name qdf_spinlock_destroy(&__osif_psoc_sync_lock)
49*5113495bSYour Name #define osif_psoc_sync_lock() qdf_spin_lock_bh(&__osif_psoc_sync_lock)
50*5113495bSYour Name #define osif_psoc_sync_unlock() qdf_spin_unlock_bh(&__osif_psoc_sync_lock)
51*5113495bSYour Name
osif_psoc_sync_lookup(struct device * dev)52*5113495bSYour Name static struct osif_psoc_sync *osif_psoc_sync_lookup(struct device *dev)
53*5113495bSYour Name {
54*5113495bSYour Name int i;
55*5113495bSYour Name
56*5113495bSYour Name for (i = 0; i < QDF_ARRAY_SIZE(__osif_psoc_sync_arr); i++) {
57*5113495bSYour Name struct osif_psoc_sync *psoc_sync = __osif_psoc_sync_arr + i;
58*5113495bSYour Name
59*5113495bSYour Name if (!psoc_sync->in_use)
60*5113495bSYour Name continue;
61*5113495bSYour Name
62*5113495bSYour Name if (psoc_sync->dev == dev)
63*5113495bSYour Name return psoc_sync;
64*5113495bSYour Name }
65*5113495bSYour Name
66*5113495bSYour Name return NULL;
67*5113495bSYour Name }
68*5113495bSYour Name
osif_psoc_sync_get(void)69*5113495bSYour Name static struct osif_psoc_sync *osif_psoc_sync_get(void)
70*5113495bSYour Name {
71*5113495bSYour Name int i;
72*5113495bSYour Name
73*5113495bSYour Name for (i = 0; i < QDF_ARRAY_SIZE(__osif_psoc_sync_arr); i++) {
74*5113495bSYour Name struct osif_psoc_sync *psoc_sync = __osif_psoc_sync_arr + i;
75*5113495bSYour Name
76*5113495bSYour Name if (!psoc_sync->in_use) {
77*5113495bSYour Name psoc_sync->in_use = true;
78*5113495bSYour Name return psoc_sync;
79*5113495bSYour Name }
80*5113495bSYour Name }
81*5113495bSYour Name
82*5113495bSYour Name return NULL;
83*5113495bSYour Name }
84*5113495bSYour Name
osif_psoc_sync_put(struct osif_psoc_sync * psoc_sync)85*5113495bSYour Name static void osif_psoc_sync_put(struct osif_psoc_sync *psoc_sync)
86*5113495bSYour Name {
87*5113495bSYour Name qdf_mem_zero(psoc_sync, sizeof(*psoc_sync));
88*5113495bSYour Name }
89*5113495bSYour Name
osif_psoc_sync_create(struct osif_psoc_sync ** out_psoc_sync)90*5113495bSYour Name int osif_psoc_sync_create(struct osif_psoc_sync **out_psoc_sync)
91*5113495bSYour Name {
92*5113495bSYour Name QDF_STATUS status;
93*5113495bSYour Name struct osif_psoc_sync *psoc_sync;
94*5113495bSYour Name
95*5113495bSYour Name QDF_BUG(out_psoc_sync);
96*5113495bSYour Name if (!out_psoc_sync)
97*5113495bSYour Name return -EINVAL;
98*5113495bSYour Name
99*5113495bSYour Name osif_psoc_sync_lock();
100*5113495bSYour Name psoc_sync = osif_psoc_sync_get();
101*5113495bSYour Name osif_psoc_sync_unlock();
102*5113495bSYour Name if (!psoc_sync)
103*5113495bSYour Name return -ENOMEM;
104*5113495bSYour Name
105*5113495bSYour Name status = osif_driver_sync_dsc_psoc_create(&psoc_sync->dsc_psoc);
106*5113495bSYour Name if (QDF_IS_STATUS_ERROR(status))
107*5113495bSYour Name goto sync_put;
108*5113495bSYour Name
109*5113495bSYour Name *out_psoc_sync = psoc_sync;
110*5113495bSYour Name
111*5113495bSYour Name return 0;
112*5113495bSYour Name
113*5113495bSYour Name sync_put:
114*5113495bSYour Name osif_psoc_sync_lock();
115*5113495bSYour Name osif_psoc_sync_put(psoc_sync);
116*5113495bSYour Name osif_psoc_sync_unlock();
117*5113495bSYour Name
118*5113495bSYour Name return qdf_status_to_os_return(status);
119*5113495bSYour Name }
120*5113495bSYour Name
__osif_psoc_sync_create_and_trans(struct osif_psoc_sync ** out_psoc_sync,const char * desc)121*5113495bSYour Name int __osif_psoc_sync_create_and_trans(struct osif_psoc_sync **out_psoc_sync,
122*5113495bSYour Name const char *desc)
123*5113495bSYour Name {
124*5113495bSYour Name struct osif_psoc_sync *psoc_sync;
125*5113495bSYour Name QDF_STATUS status;
126*5113495bSYour Name int errno;
127*5113495bSYour Name
128*5113495bSYour Name errno = osif_psoc_sync_create(&psoc_sync);
129*5113495bSYour Name if (errno)
130*5113495bSYour Name return errno;
131*5113495bSYour Name
132*5113495bSYour Name status = dsc_psoc_trans_start(psoc_sync->dsc_psoc, desc);
133*5113495bSYour Name if (QDF_IS_STATUS_ERROR(status))
134*5113495bSYour Name goto sync_destroy;
135*5113495bSYour Name
136*5113495bSYour Name *out_psoc_sync = psoc_sync;
137*5113495bSYour Name
138*5113495bSYour Name return 0;
139*5113495bSYour Name
140*5113495bSYour Name sync_destroy:
141*5113495bSYour Name osif_psoc_sync_destroy(psoc_sync);
142*5113495bSYour Name
143*5113495bSYour Name return qdf_status_to_os_return(status);
144*5113495bSYour Name }
145*5113495bSYour Name
osif_psoc_sync_destroy(struct osif_psoc_sync * psoc_sync)146*5113495bSYour Name void osif_psoc_sync_destroy(struct osif_psoc_sync *psoc_sync)
147*5113495bSYour Name {
148*5113495bSYour Name QDF_BUG(psoc_sync);
149*5113495bSYour Name if (!psoc_sync)
150*5113495bSYour Name return;
151*5113495bSYour Name
152*5113495bSYour Name dsc_psoc_destroy(&psoc_sync->dsc_psoc);
153*5113495bSYour Name
154*5113495bSYour Name osif_psoc_sync_lock();
155*5113495bSYour Name osif_psoc_sync_put(psoc_sync);
156*5113495bSYour Name osif_psoc_sync_unlock();
157*5113495bSYour Name }
158*5113495bSYour Name
osif_psoc_sync_register(struct device * dev,struct osif_psoc_sync * psoc_sync)159*5113495bSYour Name void osif_psoc_sync_register(struct device *dev,
160*5113495bSYour Name struct osif_psoc_sync *psoc_sync)
161*5113495bSYour Name {
162*5113495bSYour Name QDF_BUG(dev);
163*5113495bSYour Name QDF_BUG(psoc_sync);
164*5113495bSYour Name if (!psoc_sync)
165*5113495bSYour Name return;
166*5113495bSYour Name
167*5113495bSYour Name osif_psoc_sync_lock();
168*5113495bSYour Name psoc_sync->dev = dev;
169*5113495bSYour Name osif_psoc_sync_unlock();
170*5113495bSYour Name }
171*5113495bSYour Name
osif_psoc_sync_unregister(struct device * dev)172*5113495bSYour Name struct osif_psoc_sync *osif_psoc_sync_unregister(struct device *dev)
173*5113495bSYour Name {
174*5113495bSYour Name struct osif_psoc_sync *psoc_sync;
175*5113495bSYour Name
176*5113495bSYour Name QDF_BUG(dev);
177*5113495bSYour Name if (!dev)
178*5113495bSYour Name return NULL;
179*5113495bSYour Name
180*5113495bSYour Name osif_psoc_sync_lock();
181*5113495bSYour Name psoc_sync = osif_psoc_sync_lookup(dev);
182*5113495bSYour Name if (psoc_sync)
183*5113495bSYour Name psoc_sync->dev = NULL;
184*5113495bSYour Name osif_psoc_sync_unlock();
185*5113495bSYour Name
186*5113495bSYour Name return psoc_sync;
187*5113495bSYour Name }
188*5113495bSYour Name
189*5113495bSYour Name typedef QDF_STATUS (*psoc_start_func)(struct dsc_psoc *, const char *);
190*5113495bSYour Name
191*5113495bSYour Name static int
__osif_psoc_sync_start_callback(struct device * dev,struct osif_psoc_sync ** out_psoc_sync,const char * desc,psoc_start_func psoc_start_cb)192*5113495bSYour Name __osif_psoc_sync_start_callback(struct device *dev,
193*5113495bSYour Name struct osif_psoc_sync **out_psoc_sync,
194*5113495bSYour Name const char *desc,
195*5113495bSYour Name psoc_start_func psoc_start_cb)
196*5113495bSYour Name {
197*5113495bSYour Name QDF_STATUS status;
198*5113495bSYour Name struct osif_psoc_sync *psoc_sync;
199*5113495bSYour Name
200*5113495bSYour Name *out_psoc_sync = NULL;
201*5113495bSYour Name
202*5113495bSYour Name psoc_sync = osif_psoc_sync_lookup(dev);
203*5113495bSYour Name if (!psoc_sync)
204*5113495bSYour Name return -EAGAIN;
205*5113495bSYour Name
206*5113495bSYour Name status = psoc_start_cb(psoc_sync->dsc_psoc, desc);
207*5113495bSYour Name if (QDF_IS_STATUS_ERROR(status))
208*5113495bSYour Name return qdf_status_to_os_return(status);
209*5113495bSYour Name
210*5113495bSYour Name *out_psoc_sync = psoc_sync;
211*5113495bSYour Name
212*5113495bSYour Name return 0;
213*5113495bSYour Name }
214*5113495bSYour Name
215*5113495bSYour Name static int
__osif_psoc_sync_start_wait_callback(struct device * dev,struct osif_psoc_sync ** out_psoc_sync,const char * desc,psoc_start_func psoc_start_cb)216*5113495bSYour Name __osif_psoc_sync_start_wait_callback(struct device *dev,
217*5113495bSYour Name struct osif_psoc_sync **out_psoc_sync,
218*5113495bSYour Name const char *desc,
219*5113495bSYour Name psoc_start_func psoc_start_cb)
220*5113495bSYour Name {
221*5113495bSYour Name QDF_STATUS status;
222*5113495bSYour Name struct osif_psoc_sync *psoc_sync;
223*5113495bSYour Name
224*5113495bSYour Name *out_psoc_sync = NULL;
225*5113495bSYour Name
226*5113495bSYour Name osif_psoc_sync_lock();
227*5113495bSYour Name psoc_sync = osif_psoc_sync_lookup(dev);
228*5113495bSYour Name osif_psoc_sync_unlock();
229*5113495bSYour Name if (!psoc_sync)
230*5113495bSYour Name return -EAGAIN;
231*5113495bSYour Name
232*5113495bSYour Name status = psoc_start_cb(psoc_sync->dsc_psoc, desc);
233*5113495bSYour Name if (QDF_IS_STATUS_ERROR(status))
234*5113495bSYour Name return qdf_status_to_os_return(status);
235*5113495bSYour Name
236*5113495bSYour Name *out_psoc_sync = psoc_sync;
237*5113495bSYour Name
238*5113495bSYour Name return 0;
239*5113495bSYour Name }
240*5113495bSYour Name
__osif_psoc_sync_trans_start(struct device * dev,struct osif_psoc_sync ** out_psoc_sync,const char * desc)241*5113495bSYour Name int __osif_psoc_sync_trans_start(struct device *dev,
242*5113495bSYour Name struct osif_psoc_sync **out_psoc_sync,
243*5113495bSYour Name const char *desc)
244*5113495bSYour Name {
245*5113495bSYour Name int errno;
246*5113495bSYour Name
247*5113495bSYour Name osif_psoc_sync_lock();
248*5113495bSYour Name errno = __osif_psoc_sync_start_callback(dev, out_psoc_sync, desc,
249*5113495bSYour Name dsc_psoc_trans_start);
250*5113495bSYour Name osif_psoc_sync_unlock();
251*5113495bSYour Name
252*5113495bSYour Name return errno;
253*5113495bSYour Name }
254*5113495bSYour Name
__osif_psoc_sync_trans_start_wait(struct device * dev,struct osif_psoc_sync ** out_psoc_sync,const char * desc)255*5113495bSYour Name int __osif_psoc_sync_trans_start_wait(struct device *dev,
256*5113495bSYour Name struct osif_psoc_sync **out_psoc_sync,
257*5113495bSYour Name const char *desc)
258*5113495bSYour Name {
259*5113495bSYour Name int errno;
260*5113495bSYour Name
261*5113495bSYour Name /* since dsc_psoc_trans_start_wait may sleep do not take lock here */
262*5113495bSYour Name errno = __osif_psoc_sync_start_wait_callback(dev, out_psoc_sync, desc,
263*5113495bSYour Name dsc_psoc_trans_start_wait);
264*5113495bSYour Name
265*5113495bSYour Name return errno;
266*5113495bSYour Name }
267*5113495bSYour Name
__assert_trans_cb(struct dsc_psoc * dsc_psoc,const char * desc)268*5113495bSYour Name static QDF_STATUS __assert_trans_cb(struct dsc_psoc *dsc_psoc, const char *desc)
269*5113495bSYour Name {
270*5113495bSYour Name dsc_psoc_assert_trans_protected(dsc_psoc);
271*5113495bSYour Name
272*5113495bSYour Name return QDF_STATUS_SUCCESS;
273*5113495bSYour Name }
274*5113495bSYour Name
osif_psoc_sync_trans_resume(struct device * dev,struct osif_psoc_sync ** out_psoc_sync)275*5113495bSYour Name int osif_psoc_sync_trans_resume(struct device *dev,
276*5113495bSYour Name struct osif_psoc_sync **out_psoc_sync)
277*5113495bSYour Name {
278*5113495bSYour Name int errno;
279*5113495bSYour Name
280*5113495bSYour Name osif_psoc_sync_lock();
281*5113495bSYour Name errno = __osif_psoc_sync_start_callback(dev, out_psoc_sync, NULL,
282*5113495bSYour Name __assert_trans_cb);
283*5113495bSYour Name osif_psoc_sync_unlock();
284*5113495bSYour Name
285*5113495bSYour Name return errno;
286*5113495bSYour Name }
287*5113495bSYour Name
osif_psoc_sync_trans_stop(struct osif_psoc_sync * psoc_sync)288*5113495bSYour Name void osif_psoc_sync_trans_stop(struct osif_psoc_sync *psoc_sync)
289*5113495bSYour Name {
290*5113495bSYour Name dsc_psoc_trans_stop(psoc_sync->dsc_psoc);
291*5113495bSYour Name }
292*5113495bSYour Name
osif_psoc_sync_assert_trans_protected(struct device * dev)293*5113495bSYour Name void osif_psoc_sync_assert_trans_protected(struct device *dev)
294*5113495bSYour Name {
295*5113495bSYour Name struct osif_psoc_sync *psoc_sync;
296*5113495bSYour Name
297*5113495bSYour Name osif_psoc_sync_lock();
298*5113495bSYour Name
299*5113495bSYour Name psoc_sync = osif_psoc_sync_lookup(dev);
300*5113495bSYour Name QDF_BUG(psoc_sync);
301*5113495bSYour Name if (psoc_sync)
302*5113495bSYour Name dsc_psoc_assert_trans_protected(psoc_sync->dsc_psoc);
303*5113495bSYour Name
304*5113495bSYour Name osif_psoc_sync_unlock();
305*5113495bSYour Name }
306*5113495bSYour Name
__osif_psoc_sync_op_start(struct device * dev,struct osif_psoc_sync ** out_psoc_sync,const char * func)307*5113495bSYour Name int __osif_psoc_sync_op_start(struct device *dev,
308*5113495bSYour Name struct osif_psoc_sync **out_psoc_sync,
309*5113495bSYour Name const char *func)
310*5113495bSYour Name {
311*5113495bSYour Name int errno;
312*5113495bSYour Name
313*5113495bSYour Name osif_psoc_sync_lock();
314*5113495bSYour Name errno = __osif_psoc_sync_start_callback(dev, out_psoc_sync, func,
315*5113495bSYour Name _dsc_psoc_op_start);
316*5113495bSYour Name osif_psoc_sync_unlock();
317*5113495bSYour Name if (errno)
318*5113495bSYour Name dsc_exit_status(errno);
319*5113495bSYour Name
320*5113495bSYour Name return errno;
321*5113495bSYour Name }
322*5113495bSYour Name
__osif_psoc_sync_op_stop(struct osif_psoc_sync * psoc_sync,const char * func)323*5113495bSYour Name void __osif_psoc_sync_op_stop(struct osif_psoc_sync *psoc_sync,
324*5113495bSYour Name const char *func)
325*5113495bSYour Name {
326*5113495bSYour Name _dsc_psoc_op_stop(psoc_sync->dsc_psoc, func);
327*5113495bSYour Name }
328*5113495bSYour Name
osif_psoc_sync_wait_for_ops(struct osif_psoc_sync * psoc_sync)329*5113495bSYour Name void osif_psoc_sync_wait_for_ops(struct osif_psoc_sync *psoc_sync)
330*5113495bSYour Name {
331*5113495bSYour Name dsc_psoc_wait_for_ops(psoc_sync->dsc_psoc);
332*5113495bSYour Name }
333*5113495bSYour Name
osif_psoc_sync_init(void)334*5113495bSYour Name void osif_psoc_sync_init(void)
335*5113495bSYour Name {
336*5113495bSYour Name osif_psoc_sync_lock_create();
337*5113495bSYour Name }
338*5113495bSYour Name
osif_psoc_sync_deinit(void)339*5113495bSYour Name void osif_psoc_sync_deinit(void)
340*5113495bSYour Name {
341*5113495bSYour Name osif_psoc_sync_lock_destroy();
342*5113495bSYour Name }
343*5113495bSYour Name
344*5113495bSYour Name static QDF_STATUS
__osif_psoc_sync_dsc_vdev_create(struct device * dev,struct dsc_vdev ** out_dsc_vdev)345*5113495bSYour Name __osif_psoc_sync_dsc_vdev_create(struct device *dev,
346*5113495bSYour Name struct dsc_vdev **out_dsc_vdev)
347*5113495bSYour Name {
348*5113495bSYour Name struct osif_psoc_sync *psoc_sync;
349*5113495bSYour Name
350*5113495bSYour Name psoc_sync = osif_psoc_sync_lookup(dev);
351*5113495bSYour Name if (!psoc_sync)
352*5113495bSYour Name return QDF_STATUS_E_INVAL;
353*5113495bSYour Name
354*5113495bSYour Name return dsc_vdev_create(psoc_sync->dsc_psoc, out_dsc_vdev);
355*5113495bSYour Name }
356*5113495bSYour Name
osif_psoc_sync_dsc_vdev_create(struct device * dev,struct dsc_vdev ** out_dsc_vdev)357*5113495bSYour Name QDF_STATUS osif_psoc_sync_dsc_vdev_create(struct device *dev,
358*5113495bSYour Name struct dsc_vdev **out_dsc_vdev)
359*5113495bSYour Name {
360*5113495bSYour Name QDF_STATUS status;
361*5113495bSYour Name
362*5113495bSYour Name osif_psoc_sync_lock();
363*5113495bSYour Name status = __osif_psoc_sync_dsc_vdev_create(dev, out_dsc_vdev);
364*5113495bSYour Name osif_psoc_sync_unlock();
365*5113495bSYour Name
366*5113495bSYour Name return status;
367*5113495bSYour Name }
368*5113495bSYour Name
369