xref: /wlan-dirver/qca-wifi-host-cmn/target_if/wifi_pos/src/target_if_wifi_pos.c (revision 8ddef7dd9a290d4a9b1efd5d3efacf51d78a1a0d)
1 /*
2  * Copyright (c) 2013-2019 The Linux Foundation. All rights reserved.
3  *
4  * Permission to use, copy, modify, and/or distribute this software for
5  * any purpose with or without fee is hereby granted, provided that the
6  * above copyright notice and this permission notice appear in all
7  * copies.
8  *
9  * THE SOFTWARE IS PROVIDED "AS IS" AND THE AUTHOR DISCLAIMS ALL
10  * WARRANTIES WITH REGARD TO THIS SOFTWARE INCLUDING ALL IMPLIED
11  * WARRANTIES OF MERCHANTABILITY AND FITNESS. IN NO EVENT SHALL THE
12  * AUTHOR BE LIABLE FOR ANY SPECIAL, DIRECT, INDIRECT, OR CONSEQUENTIAL
13  * DAMAGES OR ANY DAMAGES WHATSOEVER RESULTING FROM LOSS OF USE, DATA OR
14  * PROFITS, WHETHER IN AN ACTION OF CONTRACT, NEGLIGENCE OR OTHER
15  * TORTIOUS ACTION, ARISING OUT OF OR IN CONNECTION WITH THE USE OR
16  * PERFORMANCE OF THIS SOFTWARE.
17  */
18 
19 /**
20  * DOC: target_if_wifi_pos.c
21  * This file defines the functions pertinent to wifi positioning component's
22  * target if layer.
23  */
24 #include "../../../../umac/wifi_pos/src/wifi_pos_utils_i.h"
25 #include "wmi_unified_api.h"
26 #include "wlan_lmac_if_def.h"
27 #include "target_if_wifi_pos.h"
28 #include "../../../../umac/wifi_pos/src/wifi_pos_main_i.h"
29 #include "target_if.h"
30 #ifdef WLAN_FEATURE_CIF_CFR
31 #include "hal_api.h"
32 
33 #define RING_BASE_ALIGN 8
34 
35 static void *target_if_wifi_pos_vaddr_lookup(
36 				struct wifi_pos_psoc_priv_obj *priv,
37 				void *paddr, uint8_t ring_num, uint32_t cookie)
38 {
39 	if (priv->dma_buf_pool[ring_num][cookie].paddr == paddr) {
40 		return priv->dma_buf_pool[ring_num][cookie].vaddr +
41 				priv->dma_buf_pool[ring_num][cookie].offset;
42 	} else {
43 		target_if_err("incorrect paddr found on cookie slot");
44 		return NULL;
45 	}
46 }
47 
48 static QDF_STATUS target_if_wifi_pos_replenish_ring(
49 			struct wifi_pos_psoc_priv_obj *priv, uint8_t ring_idx,
50 			void *alinged_vaddr, uint32_t cookie)
51 {
52 	uint64_t *ring_entry;
53 	uint32_t dw_lo, dw_hi = 0, map_status;
54 	void *hal_soc = priv->hal_soc;
55 	void *srng = priv->dma_cfg[ring_idx].srng;
56 	void *paddr;
57 
58 	if (!alinged_vaddr) {
59 		target_if_debug("NULL alinged_vaddr provided");
60 		return QDF_STATUS_SUCCESS;
61 	}
62 
63 	map_status = qdf_mem_map_nbytes_single(NULL, alinged_vaddr,
64 			QDF_DMA_FROM_DEVICE,
65 			priv->dma_cap[ring_idx].min_buf_size,
66 			(qdf_dma_addr_t *)&paddr);
67 	if (map_status) {
68 		target_if_err("mem map failed status: %d", map_status);
69 		return QDF_STATUS_E_FAILURE;
70 	}
71 	QDF_ASSERT(!((uint64_t)paddr % priv->dma_cap[ring_idx].min_buf_align));
72 	priv->dma_buf_pool[ring_idx][cookie].paddr = paddr;
73 
74 	hal_srng_access_start(hal_soc, srng);
75 	ring_entry = hal_srng_src_get_next(hal_soc, srng);
76 	dw_lo = (uint64_t)paddr & 0xFFFFFFFF;
77 	WMI_OEM_DMA_DATA_ADDR_HI_SET(dw_hi, (uint64_t)paddr >> 32);
78 	WMI_OEM_DMA_DATA_ADDR_HI_HOST_DATA_SET(dw_hi, cookie);
79 	*ring_entry = (uint64_t)dw_hi << 32 | dw_lo;
80 	hal_srng_access_end(hal_soc, srng);
81 
82 	return QDF_STATUS_SUCCESS;
83 }
84 
85 static QDF_STATUS target_if_wifi_pos_get_indirect_data(
86 		struct wifi_pos_psoc_priv_obj *priv_obj,
87 		wmi_oem_indirect_data *indirect,
88 		struct oem_data_rsp *rsp, uint32_t *cookie)
89 {
90 	void *paddr = NULL;
91 	uint32_t addr_hi;
92 	uint8_t ring_idx = 0, num_rings;
93 
94 	if (!indirect) {
95 		target_if_debug("no indirect data. regular event received");
96 		return QDF_STATUS_SUCCESS;
97 	}
98 
99 	ring_idx = indirect->pdev_id - 1;
100 	num_rings = priv_obj->num_rings;
101 	if (ring_idx >= num_rings) {
102 		target_if_err("incorrect pdev_id: %d", indirect->pdev_id);
103 		return QDF_STATUS_E_INVAL;
104 	}
105 	addr_hi = (uint64_t)WMI_OEM_DMA_DATA_ADDR_HI_GET(
106 						indirect->addr_hi);
107 	paddr = (void *)((uint64_t)addr_hi << 32 | indirect->addr_lo);
108 	*cookie = WMI_OEM_DMA_DATA_ADDR_HI_HOST_DATA_GET(
109 						indirect->addr_hi);
110 	rsp->vaddr = target_if_wifi_pos_vaddr_lookup(priv_obj,
111 					paddr, ring_idx, *cookie);
112 	rsp->dma_len = indirect->len;
113 	qdf_mem_unmap_nbytes_single(NULL, (qdf_dma_addr_t)paddr,
114 			QDF_DMA_FROM_DEVICE,
115 			priv_obj->dma_cap[ring_idx].min_buf_size);
116 
117 	return QDF_STATUS_SUCCESS;
118 }
119 
120 #else
121 static QDF_STATUS target_if_wifi_pos_replenish_ring(
122 			struct wifi_pos_psoc_priv_obj *priv, uint8_t ring_idx,
123 			void *vaddr, uint32_t cookie)
124 {
125 	return QDF_STATUS_SUCCESS;
126 }
127 
128 static QDF_STATUS target_if_wifi_pos_get_indirect_data(
129 		struct wifi_pos_psoc_priv_obj *priv_obj,
130 		wmi_oem_indirect_data *indirect,
131 		struct oem_data_rsp *rsp, uint32_t *cookie)
132 {
133 	return QDF_STATUS_SUCCESS;
134 }
135 #endif
136 
137 /**
138  * target_if_wifi_pos_oem_rsp_ev_handler: handler registered with
139  * WMI_OEM_RESPONSE_EVENTID
140  * @scn: scn handle
141  * @data_buf: event buffer
142  * @data_len: event buffer length
143  *
144  * Return: status of operation
145  */
146 static int target_if_wifi_pos_oem_rsp_ev_handler(ol_scn_t scn,
147 					uint8_t *data_buf,
148 					uint32_t data_len)
149 {
150 	int ret;
151 	uint8_t ring_idx = 0;
152 	QDF_STATUS status;
153 	uint32_t cookie = 0;
154 	wmi_oem_indirect_data *indirect;
155 	struct oem_data_rsp oem_rsp = {0};
156 	struct wifi_pos_psoc_priv_obj *priv_obj;
157 	struct wlan_objmgr_psoc *psoc = wifi_pos_get_psoc();
158 	struct wlan_lmac_if_wifi_pos_rx_ops *wifi_pos_rx_ops = NULL;
159 	WMI_OEM_RESPONSE_EVENTID_param_tlvs *param_buf =
160 		(WMI_OEM_RESPONSE_EVENTID_param_tlvs *)data_buf;
161 
162 	if (!psoc) {
163 		target_if_err("psoc is null");
164 		return QDF_STATUS_NOT_INITIALIZED;
165 	}
166 
167 	wlan_objmgr_psoc_get_ref(psoc, WLAN_WIFI_POS_TGT_IF_ID);
168 
169 	priv_obj = wifi_pos_get_psoc_priv_obj(psoc);
170 	if (!priv_obj) {
171 		target_if_err("priv_obj is null");
172 		wlan_objmgr_psoc_release_ref(psoc, WLAN_WIFI_POS_TGT_IF_ID);
173 		return QDF_STATUS_NOT_INITIALIZED;
174 	}
175 
176 	wifi_pos_rx_ops = target_if_wifi_pos_get_rxops(psoc);
177 	if (!wifi_pos_rx_ops || !wifi_pos_rx_ops->oem_rsp_event_rx) {
178 		wlan_objmgr_psoc_release_ref(psoc, WLAN_WIFI_POS_TGT_IF_ID);
179 		target_if_err("lmac callbacks not registered");
180 		return QDF_STATUS_NOT_INITIALIZED;
181 	}
182 
183 	oem_rsp.rsp_len_1 = param_buf->num_data;
184 	oem_rsp.data_1 = param_buf->data;
185 
186 	if (param_buf->num_data2) {
187 		oem_rsp.rsp_len_2 = param_buf->num_data2;
188 		oem_rsp.data_2 = param_buf->data2;
189 	}
190 
191 	indirect = (wmi_oem_indirect_data *)param_buf->indirect_data;
192 	status = target_if_wifi_pos_get_indirect_data(priv_obj, indirect,
193 						      &oem_rsp, &cookie);
194 	if (QDF_IS_STATUS_ERROR(status)) {
195 		target_if_err("get indirect data failed status: %d", status);
196 		wlan_objmgr_psoc_release_ref(psoc, WLAN_WIFI_POS_TGT_IF_ID);
197 		return QDF_STATUS_E_INVAL;
198 	}
199 
200 	ret = wifi_pos_rx_ops->oem_rsp_event_rx(psoc, &oem_rsp);
201 	if (indirect)
202 		ring_idx = indirect->pdev_id - 1;
203 	status = target_if_wifi_pos_replenish_ring(priv_obj, ring_idx,
204 					oem_rsp.vaddr, cookie);
205 	if (QDF_IS_STATUS_ERROR(status)) {
206 		target_if_err("replenish failed status: %d", status);
207 		ret = QDF_STATUS_E_FAILURE;
208 	}
209 
210 	wlan_objmgr_psoc_release_ref(psoc, WLAN_WIFI_POS_TGT_IF_ID);
211 
212 	return ret;
213 }
214 
215 /**
216  * wifi_pos_oem_cap_ev_handler: handler registered with wmi_oem_cap_event_id
217  * @scn: scn handle
218  * @buf: event buffer
219  * @len: event buffer length
220  *
221  * Return: status of operation
222  */
223 static int wifi_pos_oem_cap_ev_handler(ol_scn_t scn, uint8_t *buf, uint32_t len)
224 {
225 	/* TBD */
226 	return 0;
227 }
228 
229 /**
230  * wifi_pos_oem_meas_rpt_ev_handler: handler registered with
231  * wmi_oem_meas_report_event_id
232  * @scn: scn handle
233  * @buf: event buffer
234  * @len: event buffer length
235  *
236  * Return: status of operation
237  */
238 static int wifi_pos_oem_meas_rpt_ev_handler(ol_scn_t scn, uint8_t *buf,
239 					    uint32_t len)
240 {
241 	/* TBD */
242 	return 0;
243 }
244 
245 /**
246  * wifi_pos_oem_err_rpt_ev_handler: handler registered with
247  * wmi_oem_err_report_event_id
248  * @scn: scn handle
249  * @buf: event buffer
250  * @len: event buffer length
251  *
252  * Return: status of operation
253  */
254 static int wifi_pos_oem_err_rpt_ev_handler(ol_scn_t scn, uint8_t *buf,
255 					    uint32_t len)
256 {
257 	/* TBD */
258 	return 0;
259 }
260 
261 /**
262  * wifi_pos_oem_data_req() - start OEM data request to target
263  * @wma_handle: wma handle
264  * @req: start request params
265  *
266  * Return: QDF_STATUS
267  */
268 static QDF_STATUS wifi_pos_oem_data_req(struct wlan_objmgr_psoc *psoc,
269 					struct oem_data_req *req)
270 {
271 	QDF_STATUS status;
272 	void *wmi_hdl = GET_WMI_HDL_FROM_PSOC(psoc);
273 
274 	target_if_debug("Send oem data req to target");
275 
276 	if (!req || !req->data) {
277 		target_if_err("oem_data_req is null");
278 		return QDF_STATUS_E_INVAL;
279 	}
280 
281 	if (!wmi_hdl) {
282 		target_if_err("WMA closed, can't send oem data req cmd");
283 		return QDF_STATUS_E_INVAL;
284 	}
285 
286 	status = wmi_unified_start_oem_data_cmd(wmi_hdl, req->data_len,
287 						req->data);
288 
289 	if (!QDF_IS_STATUS_SUCCESS(status))
290 		target_if_err("wmi cmd send failed");
291 
292 	return status;
293 }
294 
295 void target_if_wifi_pos_register_tx_ops(struct wlan_lmac_if_tx_ops *tx_ops)
296 {
297 	struct wlan_lmac_if_wifi_pos_tx_ops *wifi_pos_tx_ops;
298 	wifi_pos_tx_ops = &tx_ops->wifi_pos_tx_ops;
299 	wifi_pos_tx_ops->data_req_tx = wifi_pos_oem_data_req;
300 }
301 
302 void target_if_wifi_pos_register_rx_ops(struct wlan_lmac_if_rx_ops *rx_ops)
303 {
304 	struct wlan_lmac_if_wifi_pos_rx_ops *wifi_pos_rx_ops;
305 	wifi_pos_rx_ops = &rx_ops->wifi_pos_rx_ops;
306 	wifi_pos_rx_ops->oem_rsp_event_rx = wifi_pos_oem_rsp_handler;
307 }
308 
309 inline struct wlan_lmac_if_wifi_pos_tx_ops *target_if_wifi_pos_get_txops(
310 						struct wlan_objmgr_psoc *psoc)
311 {
312 	if (!psoc) {
313 		target_if_err("passed psoc is NULL");
314 		return NULL;
315 	}
316 
317 	return &psoc->soc_cb.tx_ops.wifi_pos_tx_ops;
318 }
319 
320 inline struct wlan_lmac_if_wifi_pos_rx_ops *target_if_wifi_pos_get_rxops(
321 						struct wlan_objmgr_psoc *psoc)
322 {
323 	if (!psoc) {
324 		target_if_err("passed psoc is NULL");
325 		return NULL;
326 	}
327 
328 	return &psoc->soc_cb.rx_ops.wifi_pos_rx_ops;
329 }
330 
331 QDF_STATUS target_if_wifi_pos_register_events(struct wlan_objmgr_psoc *psoc)
332 {
333 	int ret;
334 
335 	if (!psoc || !GET_WMI_HDL_FROM_PSOC(psoc)) {
336 		target_if_err("psoc or psoc->tgt_if_handle is null");
337 		return QDF_STATUS_E_INVAL;
338 	}
339 
340 	ret = wmi_unified_register_event_handler(
341 			get_wmi_unified_hdl_from_psoc(psoc),
342 			wmi_oem_response_event_id,
343 			target_if_wifi_pos_oem_rsp_ev_handler,
344 			WMI_RX_WORK_CTX);
345 	if (ret) {
346 		target_if_err("register_event_handler failed: err %d", ret);
347 		return QDF_STATUS_E_INVAL;
348 	}
349 
350 	ret = wmi_unified_register_event_handler(
351 			get_wmi_unified_hdl_from_psoc(psoc),
352 			wmi_oem_cap_event_id,
353 			wifi_pos_oem_cap_ev_handler,
354 			WMI_RX_WORK_CTX);
355 	if (ret) {
356 		target_if_err("register_event_handler failed: err %d", ret);
357 		return QDF_STATUS_E_INVAL;
358 	}
359 
360 	ret = wmi_unified_register_event_handler(
361 			get_wmi_unified_hdl_from_psoc(psoc),
362 			wmi_oem_meas_report_event_id,
363 			wifi_pos_oem_meas_rpt_ev_handler,
364 			WMI_RX_WORK_CTX);
365 	if (ret) {
366 		target_if_err("register_event_handler failed: err %d", ret);
367 		return QDF_STATUS_E_INVAL;
368 	}
369 
370 	ret = wmi_unified_register_event_handler(
371 			get_wmi_unified_hdl_from_psoc(psoc),
372 			wmi_oem_report_event_id,
373 			wifi_pos_oem_err_rpt_ev_handler,
374 			WMI_RX_WORK_CTX);
375 	if (ret) {
376 		target_if_err("register_event_handler failed: err %d", ret);
377 		return QDF_STATUS_E_INVAL;
378 	}
379 
380 	return QDF_STATUS_SUCCESS;
381 }
382 
383 QDF_STATUS target_if_wifi_pos_deregister_events(struct wlan_objmgr_psoc *psoc)
384 {
385 	if (!psoc || !GET_WMI_HDL_FROM_PSOC(psoc)) {
386 		target_if_err("psoc or psoc->tgt_if_handle is null");
387 		return QDF_STATUS_E_INVAL;
388 	}
389 
390 	wmi_unified_unregister_event_handler(
391 			get_wmi_unified_hdl_from_psoc(psoc),
392 			wmi_oem_response_event_id);
393 	wmi_unified_unregister_event_handler(
394 			get_wmi_unified_hdl_from_psoc(psoc),
395 			wmi_oem_cap_event_id);
396 	wmi_unified_unregister_event_handler(
397 			get_wmi_unified_hdl_from_psoc(psoc),
398 			wmi_oem_meas_report_event_id);
399 	wmi_unified_unregister_event_handler(
400 			get_wmi_unified_hdl_from_psoc(psoc),
401 			wmi_oem_report_event_id);
402 
403 	return QDF_STATUS_SUCCESS;
404 }
405 
406 #ifdef WLAN_FEATURE_CIF_CFR
407 static QDF_STATUS target_if_wifi_pos_fill_ring(uint8_t ring_idx,
408 					struct hal_srng *srng,
409 					struct wifi_pos_psoc_priv_obj *priv)
410 {
411 	uint32_t i;
412 	void *buf, *buf_aligned;
413 
414 	for (i = 0; i < priv->dma_cfg[ring_idx].num_ptr; i++) {
415 		buf = qdf_mem_malloc(priv->dma_cap[ring_idx].min_buf_size +
416 				priv->dma_cap[ring_idx].min_buf_align - 1);
417 		if (!buf)
418 			return QDF_STATUS_E_NOMEM;
419 
420 		priv->dma_buf_pool[ring_idx][i].vaddr = buf;
421 		buf_aligned = (void *)qdf_roundup((uint64_t)buf,
422 				priv->dma_cap[ring_idx].min_buf_align);
423 		priv->dma_buf_pool[ring_idx][i].offset = buf_aligned - buf;
424 		priv->dma_buf_pool[ring_idx][i].cookie = i;
425 		target_if_wifi_pos_replenish_ring(priv, ring_idx,
426 						  buf_aligned, i);
427 	}
428 
429 	return QDF_STATUS_SUCCESS;
430 }
431 
432 static QDF_STATUS target_if_wifi_pos_empty_ring(uint8_t ring_idx,
433 					struct wifi_pos_psoc_priv_obj *priv)
434 {
435 	uint32_t i;
436 
437 	for (i = 0; i < priv->dma_cfg[ring_idx].num_ptr; i++) {
438 		qdf_mem_unmap_nbytes_single(NULL,
439 			(qdf_dma_addr_t)priv->dma_buf_pool[ring_idx][i].vaddr,
440 			QDF_DMA_FROM_DEVICE,
441 			priv->dma_cap[ring_idx].min_buf_size);
442 		qdf_mem_free(priv->dma_buf_pool[ring_idx][i].vaddr);
443 	}
444 
445 	return QDF_STATUS_SUCCESS;
446 }
447 
448 static QDF_STATUS target_if_wifi_pos_init_ring(uint8_t ring_idx,
449 					struct wifi_pos_psoc_priv_obj *priv)
450 {
451 	void *srng;
452 	uint32_t num_entries;
453 	qdf_dma_addr_t paddr;
454 	uint32_t ring_alloc_size;
455 	void *hal_soc = priv->hal_soc;
456 	struct hal_srng_params ring_params = {0};
457 	uint32_t max_entries = hal_srng_max_entries(hal_soc, WIFI_POS_SRC);
458 	uint32_t entry_size = hal_srng_get_entrysize(hal_soc, WIFI_POS_SRC);
459 
460 	num_entries = priv->dma_cap[ring_idx].min_num_ptr > max_entries ?
461 			max_entries : priv->dma_cap[ring_idx].min_num_ptr;
462 	priv->dma_cfg[ring_idx].num_ptr = num_entries;
463 	priv->dma_buf_pool[ring_idx] = qdf_mem_malloc(num_entries *
464 					sizeof(struct wifi_pos_dma_buf_info));
465 	if (!priv->dma_buf_pool[ring_idx])
466 		return QDF_STATUS_E_NOMEM;
467 
468 	ring_alloc_size = (num_entries * entry_size) + RING_BASE_ALIGN - 1;
469 	priv->dma_cfg[ring_idx].ring_alloc_size = ring_alloc_size;
470 	priv->dma_cfg[ring_idx].base_vaddr_unaligned =
471 		qdf_mem_alloc_consistent(NULL, NULL, ring_alloc_size, &paddr);
472 	priv->dma_cfg[ring_idx].base_paddr_unaligned = (void *)paddr;
473 	if (!priv->dma_cfg[ring_idx].base_vaddr_unaligned) {
474 		target_if_err("malloc failed");
475 		return QDF_STATUS_E_NOMEM;
476 	}
477 
478 	priv->dma_cfg[ring_idx].base_vaddr_aligned = (void *)qdf_roundup(
479 		(uint64_t)priv->dma_cfg[ring_idx].base_vaddr_unaligned,
480 		RING_BASE_ALIGN);
481 	ring_params.ring_base_vaddr =
482 		priv->dma_cfg[ring_idx].base_vaddr_aligned;
483 	priv->dma_cfg[ring_idx].base_paddr_aligned = (void *)qdf_roundup(
484 		(uint64_t)priv->dma_cfg[ring_idx].base_paddr_unaligned,
485 		RING_BASE_ALIGN);
486 	ring_params.ring_base_paddr =
487 		(qdf_dma_addr_t)priv->dma_cfg[ring_idx].base_paddr_aligned;
488 	ring_params.num_entries = num_entries;
489 	srng = hal_srng_setup(hal_soc, WIFI_POS_SRC, 0,
490 				priv->dma_cap[ring_idx].pdev_id, &ring_params);
491 	if (!srng) {
492 		target_if_err("srng setup failed");
493 		return QDF_STATUS_E_FAILURE;
494 	}
495 	priv->dma_cfg[ring_idx].srng = srng;
496 	priv->dma_cfg[ring_idx].tail_idx_addr =
497 			(void *)hal_srng_get_tp_addr(hal_soc, srng);
498 	priv->dma_cfg[ring_idx].head_idx_addr =
499 			(void *)hal_srng_get_tp_addr(hal_soc, srng);
500 
501 	return target_if_wifi_pos_fill_ring(ring_idx, srng, priv);
502 }
503 
504 static QDF_STATUS target_if_wifi_pos_deinit_ring(uint8_t ring_idx,
505 					struct wifi_pos_psoc_priv_obj *priv)
506 {
507 	target_if_wifi_pos_empty_ring(ring_idx, priv);
508 	priv->dma_buf_pool[ring_idx] = NULL;
509 	hal_srng_cleanup(priv->hal_soc, priv->dma_cfg[ring_idx].srng);
510 	qdf_mem_free_consistent(NULL, NULL,
511 		priv->dma_cfg[ring_idx].ring_alloc_size,
512 		priv->dma_cfg[ring_idx].base_vaddr_unaligned,
513 		(qdf_dma_addr_t)priv->dma_cfg[ring_idx].base_paddr_unaligned,
514 		0);
515 	qdf_mem_free(priv->dma_buf_pool[ring_idx]);
516 
517 	return QDF_STATUS_SUCCESS;
518 }
519 
520 static QDF_STATUS target_if_wifi_pos_init_srngs(
521 					struct wifi_pos_psoc_priv_obj *priv)
522 {
523 	uint8_t i;
524 	QDF_STATUS status;
525 
526 	/* allocate memory for num_rings pointers */
527 	priv->dma_cfg = qdf_mem_malloc(priv->num_rings *
528 				sizeof(struct wifi_pos_dma_rings_cap));
529 	if (!priv->dma_cfg)
530 		return QDF_STATUS_E_NOMEM;
531 
532 	priv->dma_buf_pool = qdf_mem_malloc(priv->num_rings *
533 				sizeof(struct wifi_pos_dma_buf_info *));
534 	if (!priv->dma_buf_pool)
535 		return QDF_STATUS_E_NOMEM;
536 
537 	for (i = 0; i < priv->num_rings; i++) {
538 		status = target_if_wifi_pos_init_ring(i, priv);
539 		if (QDF_IS_STATUS_ERROR(status)) {
540 			target_if_err("init for ring[%d] failed", i);
541 			return status;
542 		}
543 	}
544 
545 	return QDF_STATUS_SUCCESS;
546 }
547 
548 static QDF_STATUS target_if_wifi_pos_deinit_srngs(
549 					struct wifi_pos_psoc_priv_obj *priv)
550 {
551 	uint8_t i;
552 
553 	for (i = 0; i < priv->num_rings; i++)
554 		target_if_wifi_pos_deinit_ring(i, priv);
555 
556 	qdf_mem_free(priv->dma_buf_pool);
557 	priv->dma_buf_pool = NULL;
558 
559 	return QDF_STATUS_SUCCESS;
560 }
561 
562 static QDF_STATUS target_if_wifi_pos_cfg_fw(struct wlan_objmgr_psoc *psoc,
563 					struct wifi_pos_psoc_priv_obj *priv)
564 {
565 	uint8_t i;
566 	QDF_STATUS status;
567 	void *wmi_hdl = GET_WMI_HDL_FROM_PSOC(psoc);
568 	wmi_oem_dma_ring_cfg_req_fixed_param cfg = {0};
569 
570 	if (!wmi_hdl) {
571 		target_if_err("WMA closed, can't send oem data req cmd");
572 		return QDF_STATUS_E_INVAL;
573 	}
574 
575 	target_if_debug("Sending oem dma ring cfg to target");
576 
577 	for (i = 0; i < priv->num_rings; i++) {
578 		cfg.pdev_id = priv->dma_cfg[i].pdev_id;
579 		cfg.base_addr_lo = (uint64_t)priv->dma_cfg[i].base_paddr_aligned
580 						& 0xFFFFFFFF;
581 		cfg.base_addr_hi = (uint64_t)priv->dma_cfg[i].base_paddr_aligned
582 						& 0xFFFFFFFF00000000;
583 		cfg.head_idx_addr_lo = (uint64_t)priv->dma_cfg[i].head_idx_addr
584 						& 0xFFFFFFFF;
585 		cfg.head_idx_addr_hi = (uint64_t)priv->dma_cfg[i].head_idx_addr
586 						& 0xFFFFFFFF00000000;
587 		cfg.tail_idx_addr_lo = (uint64_t)priv->dma_cfg[i].tail_idx_addr
588 						& 0xFFFFFFFF;
589 		cfg.tail_idx_addr_hi = (uint64_t)priv->dma_cfg[i].tail_idx_addr
590 						& 0xFFFFFFFF00000000;
591 		cfg.num_ptr = priv->dma_cfg[i].num_ptr;
592 		status = wmi_unified_oem_dma_ring_cfg(wmi_hdl, &cfg);
593 		if (!QDF_IS_STATUS_SUCCESS(status)) {
594 			target_if_err("wmi cmd send failed");
595 			return status;
596 		}
597 	}
598 
599 	return status;
600 }
601 
602 QDF_STATUS target_if_wifi_pos_deinit_dma_rings(struct wlan_objmgr_psoc *psoc)
603 {
604 	struct wifi_pos_psoc_priv_obj *priv = wifi_pos_get_psoc_priv_obj(psoc);
605 
606 	target_if_wifi_pos_deinit_srngs(priv);
607 	qdf_mem_free(priv->dma_cap);
608 	priv->dma_cap = NULL;
609 
610 	return QDF_STATUS_SUCCESS;
611 }
612 
613 QDF_STATUS target_if_wifi_pos_init_cir_cfr_rings(struct wlan_objmgr_psoc *psoc,
614 					     void *hal_soc, uint8_t num_mac,
615 					     void *buf)
616 {
617 	uint8_t i;
618 	QDF_STATUS status = QDF_STATUS_SUCCESS;
619 	WMI_OEM_DMA_RING_CAPABILITIES *dma_cap = buf;
620 	struct wifi_pos_psoc_priv_obj *priv = wifi_pos_get_psoc_priv_obj(psoc);
621 
622 	if (!priv) {
623 		target_if_err("unable to get wifi_pos psoc obj");
624 		return QDF_STATUS_E_NULL_VALUE;
625 	}
626 
627 	priv->hal_soc = hal_soc;
628 	priv->num_rings = num_mac;
629 	priv->dma_cap = qdf_mem_malloc(priv->num_rings *
630 					sizeof(struct wifi_pos_dma_rings_cap));
631 	if (!priv->dma_cap)
632 		return QDF_STATUS_E_NOMEM;
633 
634 	for (i = 0; i < num_mac; i++) {
635 		priv->dma_cap[i].pdev_id = dma_cap[i].pdev_id;
636 		priv->dma_cap[i].min_num_ptr = dma_cap[i].min_num_ptr;
637 		priv->dma_cap[i].min_buf_size = dma_cap[i].min_buf_size;
638 		priv->dma_cap[i].min_buf_align = dma_cap[i].min_buf_align;
639 	}
640 
641 	/* initialize DMA rings now */
642 	status = target_if_wifi_pos_init_srngs(priv);
643 	if (QDF_IS_STATUS_ERROR(status)) {
644 		target_if_err("dma init failed: %d", status);
645 		goto dma_init_failed;
646 	}
647 
648 	/* send cfg req cmd to firmware */
649 	status = target_if_wifi_pos_cfg_fw(psoc, priv);
650 	if (QDF_IS_STATUS_ERROR(status)) {
651 		target_if_err("configure to FW failed: %d", status);
652 		goto dma_init_failed;
653 	}
654 
655 	return QDF_STATUS_SUCCESS;
656 
657 dma_init_failed:
658 	target_if_wifi_pos_deinit_dma_rings(psoc);
659 	return status;
660 }
661 
662 #endif
663