diff options
author | Kalle Valo <kvalo@codeaurora.org> | 2015-11-17 20:52:05 +0300 |
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committer | Kalle Valo <kvalo@codeaurora.org> | 2015-11-18 12:24:22 +0300 |
commit | 05491d2ccf20b20a1375303441fbbfbd12b24a4f (patch) | |
tree | 52da6bbf8d97721ac9441f54f62b92f5a4410c14 /drivers/net/wireless/broadcom/brcm80211/brcmfmac/debug.c | |
parent | 423e3ce336499ddb4e094f40649d12d9820f785b (diff) | |
download | linux-05491d2ccf20b20a1375303441fbbfbd12b24a4f.tar.xz |
brcm80211: move under broadcom vendor directory
Part of reorganising wireless drivers directory and Kconfig. Note that I had to
edit Makefiles from subdirectories to use the new location.
Signed-off-by: Kalle Valo <kvalo@codeaurora.org>
Diffstat (limited to 'drivers/net/wireless/broadcom/brcm80211/brcmfmac/debug.c')
-rw-r--r-- | drivers/net/wireless/broadcom/brcm80211/brcmfmac/debug.c | 111 |
1 files changed, 111 insertions, 0 deletions
diff --git a/drivers/net/wireless/broadcom/brcm80211/brcmfmac/debug.c b/drivers/net/wireless/broadcom/brcm80211/brcmfmac/debug.c new file mode 100644 index 000000000000..1299dccc78b4 --- /dev/null +++ b/drivers/net/wireless/broadcom/brcm80211/brcmfmac/debug.c @@ -0,0 +1,111 @@ +/* + * Copyright (c) 2012 Broadcom Corporation + * + * Permission to use, copy, modify, and/or distribute this software for any + * purpose with or without fee is hereby granted, provided that the above + * copyright notice and this permission notice appear in all copies. + * + * THE SOFTWARE IS PROVIDED "AS IS" AND THE AUTHOR DISCLAIMS ALL WARRANTIES + * WITH REGARD TO THIS SOFTWARE INCLUDING ALL IMPLIED WARRANTIES OF + * MERCHANTABILITY AND FITNESS. IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR ANY + * SPECIAL, DIRECT, INDIRECT, OR CONSEQUENTIAL DAMAGES OR ANY DAMAGES + * WHATSOEVER RESULTING FROM LOSS OF USE, DATA OR PROFITS, WHETHER IN AN ACTION + * OF CONTRACT, NEGLIGENCE OR OTHER TORTIOUS ACTION, ARISING OUT OF OR IN + * CONNECTION WITH THE USE OR PERFORMANCE OF THIS SOFTWARE. + */ +#include <linux/debugfs.h> +#include <linux/netdevice.h> +#include <linux/module.h> +#include <linux/devcoredump.h> + +#include <brcmu_wifi.h> +#include <brcmu_utils.h> +#include "core.h" +#include "bus.h" +#include "fweh.h" +#include "debug.h" + +static struct dentry *root_folder; + +static int brcmf_debug_create_memdump(struct brcmf_bus *bus, const void *data, + size_t len) +{ + void *dump; + size_t ramsize; + + ramsize = brcmf_bus_get_ramsize(bus); + if (ramsize) { + dump = vzalloc(len + ramsize); + if (!dump) + return -ENOMEM; + memcpy(dump, data, len); + brcmf_bus_get_memdump(bus, dump + len, ramsize); + dev_coredumpv(bus->dev, dump, len + ramsize, GFP_KERNEL); + } + return 0; +} + +static int brcmf_debug_psm_watchdog_notify(struct brcmf_if *ifp, + const struct brcmf_event_msg *evtmsg, + void *data) +{ + brcmf_dbg(TRACE, "enter: idx=%d\n", ifp->bssidx); + + return brcmf_debug_create_memdump(ifp->drvr->bus_if, data, + evtmsg->datalen); +} + +void brcmf_debugfs_init(void) +{ + root_folder = debugfs_create_dir(KBUILD_MODNAME, NULL); + if (IS_ERR(root_folder)) + root_folder = NULL; +} + +void brcmf_debugfs_exit(void) +{ + if (!root_folder) + return; + + debugfs_remove_recursive(root_folder); + root_folder = NULL; +} + +int brcmf_debug_attach(struct brcmf_pub *drvr) +{ + struct device *dev = drvr->bus_if->dev; + + if (!root_folder) + return -ENODEV; + + drvr->dbgfs_dir = debugfs_create_dir(dev_name(dev), root_folder); + if (IS_ERR(drvr->dbgfs_dir)) + return PTR_ERR(drvr->dbgfs_dir); + + + return brcmf_fweh_register(drvr, BRCMF_E_PSM_WATCHDOG, + brcmf_debug_psm_watchdog_notify); +} + +void brcmf_debug_detach(struct brcmf_pub *drvr) +{ + brcmf_fweh_unregister(drvr, BRCMF_E_PSM_WATCHDOG); + + if (!IS_ERR_OR_NULL(drvr->dbgfs_dir)) + debugfs_remove_recursive(drvr->dbgfs_dir); +} + +struct dentry *brcmf_debugfs_get_devdir(struct brcmf_pub *drvr) +{ + return drvr->dbgfs_dir; +} + +int brcmf_debugfs_add_entry(struct brcmf_pub *drvr, const char *fn, + int (*read_fn)(struct seq_file *seq, void *data)) +{ + struct dentry *e; + + e = debugfs_create_devm_seqfile(drvr->bus_if->dev, fn, + drvr->dbgfs_dir, read_fn); + return PTR_ERR_OR_ZERO(e); +} |