162306a36Sopenharmony_ci// SPDX-License-Identifier: ISC 262306a36Sopenharmony_ci/* 362306a36Sopenharmony_ci * Copyright (c) 2012 Broadcom Corporation 462306a36Sopenharmony_ci */ 562306a36Sopenharmony_ci#include <linux/debugfs.h> 662306a36Sopenharmony_ci#include <linux/netdevice.h> 762306a36Sopenharmony_ci#include <linux/module.h> 862306a36Sopenharmony_ci#include <linux/devcoredump.h> 962306a36Sopenharmony_ci 1062306a36Sopenharmony_ci#include <brcmu_wifi.h> 1162306a36Sopenharmony_ci#include <brcmu_utils.h> 1262306a36Sopenharmony_ci#include "core.h" 1362306a36Sopenharmony_ci#include "bus.h" 1462306a36Sopenharmony_ci#include "fweh.h" 1562306a36Sopenharmony_ci#include "debug.h" 1662306a36Sopenharmony_ci 1762306a36Sopenharmony_ciint brcmf_debug_create_memdump(struct brcmf_bus *bus, const void *data, 1862306a36Sopenharmony_ci size_t len) 1962306a36Sopenharmony_ci{ 2062306a36Sopenharmony_ci void *dump; 2162306a36Sopenharmony_ci size_t ramsize; 2262306a36Sopenharmony_ci int err; 2362306a36Sopenharmony_ci 2462306a36Sopenharmony_ci ramsize = brcmf_bus_get_ramsize(bus); 2562306a36Sopenharmony_ci if (!ramsize) 2662306a36Sopenharmony_ci return -ENOTSUPP; 2762306a36Sopenharmony_ci 2862306a36Sopenharmony_ci dump = vzalloc(len + ramsize); 2962306a36Sopenharmony_ci if (!dump) 3062306a36Sopenharmony_ci return -ENOMEM; 3162306a36Sopenharmony_ci 3262306a36Sopenharmony_ci if (data && len > 0) 3362306a36Sopenharmony_ci memcpy(dump, data, len); 3462306a36Sopenharmony_ci err = brcmf_bus_get_memdump(bus, dump + len, ramsize); 3562306a36Sopenharmony_ci if (err) { 3662306a36Sopenharmony_ci vfree(dump); 3762306a36Sopenharmony_ci return err; 3862306a36Sopenharmony_ci } 3962306a36Sopenharmony_ci 4062306a36Sopenharmony_ci dev_coredumpv(bus->dev, dump, len + ramsize, GFP_KERNEL); 4162306a36Sopenharmony_ci 4262306a36Sopenharmony_ci return 0; 4362306a36Sopenharmony_ci} 4462306a36Sopenharmony_ci 4562306a36Sopenharmony_cistruct dentry *brcmf_debugfs_get_devdir(struct brcmf_pub *drvr) 4662306a36Sopenharmony_ci{ 4762306a36Sopenharmony_ci return drvr->wiphy->debugfsdir; 4862306a36Sopenharmony_ci} 4962306a36Sopenharmony_ci 5062306a36Sopenharmony_civoid brcmf_debugfs_add_entry(struct brcmf_pub *drvr, const char *fn, 5162306a36Sopenharmony_ci int (*read_fn)(struct seq_file *seq, void *data)) 5262306a36Sopenharmony_ci{ 5362306a36Sopenharmony_ci WARN(!drvr->wiphy->debugfsdir, "wiphy not (yet) registered\n"); 5462306a36Sopenharmony_ci debugfs_create_devm_seqfile(drvr->bus_if->dev, fn, 5562306a36Sopenharmony_ci drvr->wiphy->debugfsdir, read_fn); 5662306a36Sopenharmony_ci} 57