20  * @r: the resource manager to initialize
23  * If the device does not support all channel numbers, change @r->channels_mask
26 int fw_iso_resources_init(struct fw_iso_resources *r, struct fw_unit *unit)  in fw_iso_resources_init()  argument
28 	r->channels_mask = ~0uLL;  in fw_iso_resources_init()
29 	r->unit = unit;  in fw_iso_resources_init()
30 	mutex_init(&r->mutex);  in fw_iso_resources_init()
31 	r->allocated = false;  in fw_iso_resources_init()
39  * @r: the resource manager that is no longer needed
41 void fw_iso_resources_destroy(struct fw_iso_resources *r)  in fw_iso_resources_destroy()  argument
43 	WARN_ON(r->allocated);  in fw_iso_resources_destroy()
44 	mutex_destroy(&r->mutex);  in fw_iso_resources_destroy()
92  * @r: the resource manager
105 int fw_iso_resources_allocate(struct fw_iso_resources *r,  in fw_iso_resources_allocate()  argument
108 	struct fw_card *card = fw_parent_device(r->unit)->card;  in fw_iso_resources_allocate()
111 	if (WARN_ON(r->allocated))  in fw_iso_resources_allocate()
114 	r->bandwidth = packet_bandwidth(max_payload_bytes, speed);  in fw_iso_resources_allocate()
118 	r->generation = card->generation;  in fw_iso_resources_allocate()
119 	r->bandwidth_overhead = current_bandwidth_overhead(card);  in fw_iso_resources_allocate()
126 	mutex_lock(&r->mutex);  in fw_iso_resources_allocate()
128 	bandwidth = r->bandwidth + r->bandwidth_overhead;  in fw_iso_resources_allocate()
129 	fw_iso_resource_manage(card, r->generation, r->channels_mask,  in fw_iso_resources_allocate()
132 		mutex_unlock(&r->mutex);  in fw_iso_resources_allocate()
136 		r->channel = channel;  in fw_iso_resources_allocate()
137 		r->allocated = true;  in fw_iso_resources_allocate()
140 			dev_err(&r->unit->device,  in fw_iso_resources_allocate()
143 			dev_err(&r->unit->device,  in fw_iso_resources_allocate()
147 	mutex_unlock(&r->mutex);  in fw_iso_resources_allocate()
155  * @r: the resource manager
164 int fw_iso_resources_update(struct fw_iso_resources *r)  in fw_iso_resources_update()  argument
166 	struct fw_card *card = fw_parent_device(r->unit)->card;  in fw_iso_resources_update()
169 	mutex_lock(&r->mutex);  in fw_iso_resources_update()
171 	if (!r->allocated) {  in fw_iso_resources_update()
172 		mutex_unlock(&r->mutex);  in fw_iso_resources_update()
177 	r->generation = card->generation;  in fw_iso_resources_update()
178 	r->bandwidth_overhead = current_bandwidth_overhead(card);  in fw_iso_resources_update()
181 	bandwidth = r->bandwidth + r->bandwidth_overhead;  in fw_iso_resources_update()
183 	fw_iso_resource_manage(card, r->generation, 1uLL << r->channel,  in fw_iso_resources_update()
190 		r->allocated = false;  in fw_iso_resources_update()
192 			dev_err(&r->unit->device,  in fw_iso_resources_update()
195 			dev_err(&r->unit->device,  in fw_iso_resources_update()
199 	mutex_unlock(&r->mutex);  in fw_iso_resources_update()
207  * @r: the resource manager
211 void fw_iso_resources_free(struct fw_iso_resources *r)  in fw_iso_resources_free()  argument
217 	if (r->unit == NULL)  in fw_iso_resources_free()
219 	card = fw_parent_device(r->unit)->card;  in fw_iso_resources_free()
221 	mutex_lock(&r->mutex);  in fw_iso_resources_free()
223 	if (r->allocated) {  in fw_iso_resources_free()
224 		bandwidth = r->bandwidth + r->bandwidth_overhead;  in fw_iso_resources_free()
225 		fw_iso_resource_manage(card, r->generation, 1uLL << r->channel,  in fw_iso_resources_free()
228 			dev_err(&r->unit->device,  in fw_iso_resources_free()
231 		r->allocated = false;  in fw_iso_resources_free()
234 	mutex_unlock(&r->mutex);  in fw_iso_resources_free()