~hc/RK356X_SDK_RELEASE.git

..	..	@@ -1,23 +1,13 @@
	1	+// SPDX-License-Identifier: ISC
1	2	/*
2	3	* Copyright (c) 2012-2015,2017 Qualcomm Atheros, Inc.
3	4	* Copyright (c) 2018, The Linux Foundation. All rights reserved.
4		- *
5		- * Permission to use, copy, modify, and/or distribute this software for any
6		- * purpose with or without fee is hereby granted, provided that the above
7		- * copyright notice and this permission notice appear in all copies.
8		- *
9		- * THE SOFTWARE IS PROVIDED "AS IS" AND THE AUTHOR DISCLAIMS ALL WARRANTIES
10		- * WITH REGARD TO THIS SOFTWARE INCLUDING ALL IMPLIED WARRANTIES OF
11		- * MERCHANTABILITY AND FITNESS. IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR
12		- * ANY SPECIAL, DIRECT, INDIRECT, OR CONSEQUENTIAL DAMAGES OR ANY DAMAGES
13		- * WHATSOEVER RESULTING FROM LOSS OF USE, DATA OR PROFITS, WHETHER IN AN
14		- * ACTION OF CONTRACT, NEGLIGENCE OR OTHER TORTIOUS ACTION, ARISING OUT OF
15		- * OR IN CONNECTION WITH THE USE OR PERFORMANCE OF THIS SOFTWARE.
16	5	*/
17	6
18	7	#include <linux/types.h>
19	8	#include <linux/errno.h>
20	9	#include <linux/fs.h>
	10	+#include <linux/seq_file.h>
21	11	#include "wmi.h"
22	12	#include "wil6210.h"
23	13	#include "txrx.h"
..	..	@@ -39,8 +29,7 @@
39	29	mutex_init(&wil->pmc.lock);
40	30	}
41	31
42		-/**
43		- * Allocate the physical ring (p-ring) and the required
	32	+/* Allocate the physical ring (p-ring) and the required
44	33	* number of descriptors of required size.
45	34	* Initialize the descriptors as required by pmc dma.
46	35	* The descriptors' buffers dwords are initialized to hold
..	..	@@ -231,8 +220,7 @@
231	220	mutex_unlock(&pmc->lock);
232	221	}
233	222
234		-/**
235		- * Traverse the p-ring and release all buffers.
	223	+/* Traverse the p-ring and release all buffers.
236	224	* At the end release the p-ring memory
237	225	*/
238	226	void wil_pmc_free(struct wil6210_priv *wil, int send_pmc_cmd)
..	..	@@ -309,8 +297,7 @@
309	297	mutex_unlock(&pmc->lock);
310	298	}
311	299
312		-/**
313		- * Status of the last operation requested via debugfs: alloc/free/read.
	300	+/* Status of the last operation requested via debugfs: alloc/free/read.
314	301	* 0 - success or negative errno
315	302	*/
316	303	int wil_pmc_last_cmd_status(struct wil6210_priv *wil)
..	..	@@ -321,8 +308,7 @@
321	308	return wil->pmc.last_cmd_status;
322	309	}
323	310
324		-/**
325		- * Read from required position up to the end of current descriptor,
	311	+/* Read from required position up to the end of current descriptor,
326	312	* depends on descriptor size configured during alloc request.
327	313	*/
328	314	ssize_t wil_pmc_read(struct file filp, char __user buf, size_t count,
..	..	@@ -431,3 +417,28 @@
431	417
432	418	return newpos;
433	419	}
	420	+
	421	+int wil_pmcring_read(struct seq_file s, void data)
	422	+{
	423	+ struct wil6210_priv *wil = s->private;
	424	+ struct pmc_ctx *pmc = &wil->pmc;
	425	+ size_t pmc_ring_size =
	426	+ sizeof(struct vring_rx_desc) * pmc->num_descriptors;
	427	+
	428	+ mutex_lock(&pmc->lock);
	429	+
	430	+ if (!wil_is_pmc_allocated(pmc)) {
	431	+ wil_err(wil, "error, pmc is not allocated!\n");
	432	+ pmc->last_cmd_status = -EPERM;
	433	+ mutex_unlock(&pmc->lock);
	434	+ return -EPERM;
	435	+ }
	436	+
	437	+ wil_dbg_misc(wil, "pmcring_read: size %zu\n", pmc_ring_size);
	438	+
	439	+ seq_write(s, pmc->pring_va, pmc_ring_size);
	440	+
	441	+ mutex_unlock(&pmc->lock);
	442	+
	443	+ return 0;
	444	+}