1*4882a593Smuzhiyun // SPDX-License-Identifier: ISC
2*4882a593Smuzhiyun /*
3*4882a593Smuzhiyun * Copyright (c) 2012 Broadcom Corporation
4*4882a593Smuzhiyun */
5*4882a593Smuzhiyun #include <linux/debugfs.h>
6*4882a593Smuzhiyun #include <linux/netdevice.h>
7*4882a593Smuzhiyun #include <linux/module.h>
8*4882a593Smuzhiyun #include <linux/devcoredump.h>
9*4882a593Smuzhiyun
10*4882a593Smuzhiyun #include <brcmu_wifi.h>
11*4882a593Smuzhiyun #include <brcmu_utils.h>
12*4882a593Smuzhiyun #include "core.h"
13*4882a593Smuzhiyun #include "bus.h"
14*4882a593Smuzhiyun #include "fweh.h"
15*4882a593Smuzhiyun #include "debug.h"
16*4882a593Smuzhiyun
brcmf_debug_create_memdump(struct brcmf_bus * bus,const void * data,size_t len)17*4882a593Smuzhiyun int brcmf_debug_create_memdump(struct brcmf_bus *bus, const void *data,
18*4882a593Smuzhiyun size_t len)
19*4882a593Smuzhiyun {
20*4882a593Smuzhiyun void *dump;
21*4882a593Smuzhiyun size_t ramsize;
22*4882a593Smuzhiyun int err;
23*4882a593Smuzhiyun
24*4882a593Smuzhiyun ramsize = brcmf_bus_get_ramsize(bus);
25*4882a593Smuzhiyun if (!ramsize)
26*4882a593Smuzhiyun return -ENOTSUPP;
27*4882a593Smuzhiyun
28*4882a593Smuzhiyun dump = vzalloc(len + ramsize);
29*4882a593Smuzhiyun if (!dump)
30*4882a593Smuzhiyun return -ENOMEM;
31*4882a593Smuzhiyun
32*4882a593Smuzhiyun if (data && len > 0)
33*4882a593Smuzhiyun memcpy(dump, data, len);
34*4882a593Smuzhiyun err = brcmf_bus_get_memdump(bus, dump + len, ramsize);
35*4882a593Smuzhiyun if (err) {
36*4882a593Smuzhiyun vfree(dump);
37*4882a593Smuzhiyun return err;
38*4882a593Smuzhiyun }
39*4882a593Smuzhiyun
40*4882a593Smuzhiyun dev_coredumpv(bus->dev, dump, len + ramsize, GFP_KERNEL);
41*4882a593Smuzhiyun
42*4882a593Smuzhiyun return 0;
43*4882a593Smuzhiyun }
44*4882a593Smuzhiyun
brcmf_debugfs_get_devdir(struct brcmf_pub * drvr)45*4882a593Smuzhiyun struct dentry *brcmf_debugfs_get_devdir(struct brcmf_pub *drvr)
46*4882a593Smuzhiyun {
47*4882a593Smuzhiyun return drvr->wiphy->debugfsdir;
48*4882a593Smuzhiyun }
49*4882a593Smuzhiyun
brcmf_debugfs_add_entry(struct brcmf_pub * drvr,const char * fn,int (* read_fn)(struct seq_file * seq,void * data))50*4882a593Smuzhiyun void brcmf_debugfs_add_entry(struct brcmf_pub *drvr, const char *fn,
51*4882a593Smuzhiyun int (*read_fn)(struct seq_file *seq, void *data))
52*4882a593Smuzhiyun {
53*4882a593Smuzhiyun WARN(!drvr->wiphy->debugfsdir, "wiphy not (yet) registered\n");
54*4882a593Smuzhiyun debugfs_create_devm_seqfile(drvr->bus_if->dev, fn,
55*4882a593Smuzhiyun drvr->wiphy->debugfsdir, read_fn);
56*4882a593Smuzhiyun }
57