Merge "wil6210: add debugfs to show PMC ring content" (4557bc77) · Commits · e / devices / android_kernel_fairphone_FP4

drivers/net/wireless/ath/wil6210/debugfs.c

+13 −0

Original line number	Diff line number	Diff line
		@@ -1028,6 +1028,18 @@ static const struct file_operations fops_pmcdata = {
		.llseek = wil_pmc_llseek,
		};

		static int wil_pmcring_seq_open(struct inode inode, struct file file)
		{
		return single_open(file, wil_pmcring_read, inode->i_private);
		}

		static const struct file_operations fops_pmcring = {
		.open = wil_pmcring_seq_open,
		.release = single_release,
		.read = seq_read,
		.llseek = seq_lseek,
		};

		/---tx_mgmt---/
		/* Write mgmt frame to this file to send it */
		static ssize_t wil_write_file_txmgmt(struct file file, const char __user buf,
		@@ -2569,6 +2581,7 @@ static const struct {
		{"back", 0644, &fops_back},
		{"pmccfg", 0644, &fops_pmccfg},
		{"pmcdata", 0444, &fops_pmcdata},
		{"pmcring", 0444, &fops_pmcring},
		{"temp", 0444, &fops_temp},
		{"freq", 0444, &fops_freq},
		{"link", 0444, &fops_link},

+27 −1

Original line number	Diff line number	Diff line
		/*
		* Copyright (c) 2012-2015,2017 Qualcomm Atheros, Inc.
		* Copyright (c) 2018, The Linux Foundation. All rights reserved.
		* Copyright (c) 2018,2019 The Linux Foundation. All rights reserved.
		*
		* Permission to use, copy, modify, and/or distribute this software for any
		* purpose with or without fee is hereby granted, provided that the above
		@@ -18,6 +18,7 @@
		#include <linux/types.h>
		#include <linux/errno.h>
		#include <linux/fs.h>
		#include <linux/seq_file.h>
		#include "wmi.h"
		#include "wil6210.h"
		#include "txrx.h"
		@@ -431,3 +432,28 @@ loff_t wil_pmc_llseek(struct file *filp, loff_t off, int whence)

		return newpos;
		}

		int wil_pmcring_read(struct seq_file s, void data)
		{
		struct wil6210_priv *wil = s->private;
		struct pmc_ctx *pmc = &wil->pmc;
		size_t pmc_ring_size =
		sizeof(struct vring_rx_desc) * pmc->num_descriptors;

		mutex_lock(&pmc->lock);

		if (!wil_is_pmc_allocated(pmc)) {
		wil_err(wil, "error, pmc is not allocated!\n");
		pmc->last_cmd_status = -EPERM;
		mutex_unlock(&pmc->lock);
		return -EPERM;
		}

		wil_dbg_misc(wil, "pmcring_read: size %zu\n", pmc_ring_size);

		seq_write(s, pmc->pring_va, pmc_ring_size);

		mutex_unlock(&pmc->lock);

		return 0;
		}

+2 −0

Original line number	Diff line number	Diff line
		/*
		* Copyright (c) 2012-2015 Qualcomm Atheros, Inc.
		* Copyright (c) 2019, The Linux Foundation. All rights reserved.
		*
		* Permission to use, copy, modify, and/or distribute this software for any
		* purpose with or without fee is hereby granted, provided that the above
		@@ -25,3 +26,4 @@ void wil_pmc_free(struct wil6210_priv *wil, int send_pmc_cmd);
		int wil_pmc_last_cmd_status(struct wil6210_priv *wil);
		ssize_t wil_pmc_read(struct file , char __user , size_t, loff_t *);
		loff_t wil_pmc_llseek(struct file *filp, loff_t off, int whence);
		int wil_pmcring_read(struct seq_file s, void data);