diff options
Diffstat (limited to 'drivers/net/wireless/brcm80211/brcmfmac/dhd_dbg.c')
| -rw-r--r-- | drivers/net/wireless/brcm80211/brcmfmac/dhd_dbg.c | 36 |
1 files changed, 35 insertions, 1 deletions
diff --git a/drivers/net/wireless/brcm80211/brcmfmac/dhd_dbg.c b/drivers/net/wireless/brcm80211/brcmfmac/dhd_dbg.c index 0f9e9057e7dd..03fe8aca4d32 100644 --- a/drivers/net/wireless/brcm80211/brcmfmac/dhd_dbg.c +++ b/drivers/net/wireless/brcm80211/brcmfmac/dhd_dbg.c @@ -22,7 +22,6 @@ #include "dhd.h" #include "dhd_bus.h" #include "dhd_dbg.h" -#include "tracepoint.h" static struct dentry *root_folder; @@ -42,6 +41,40 @@ void brcmf_debugfs_exit(void) root_folder = NULL; } +static +ssize_t brcmf_debugfs_chipinfo_read(struct file *f, char __user *data, + size_t count, loff_t *ppos) +{ + struct brcmf_pub *drvr = f->private_data; + struct brcmf_bus *bus = drvr->bus_if; + char buf[40]; + int res; + + /* only allow read from start */ + if (*ppos > 0) + return 0; + + res = scnprintf(buf, sizeof(buf), "chip: %x(%u) rev %u\n", + bus->chip, bus->chip, bus->chiprev); + return simple_read_from_buffer(data, count, ppos, buf, res); +} + +static const struct file_operations brcmf_debugfs_chipinfo_ops = { + .owner = THIS_MODULE, + .open = simple_open, + .read = brcmf_debugfs_chipinfo_read +}; + +static int brcmf_debugfs_create_chipinfo(struct brcmf_pub *drvr) +{ + struct dentry *dentry = drvr->dbgfs_dir; + + if (!IS_ERR_OR_NULL(dentry)) + debugfs_create_file("chipinfo", S_IRUGO, dentry, drvr, + &brcmf_debugfs_chipinfo_ops); + return 0; +} + int brcmf_debugfs_attach(struct brcmf_pub *drvr) { struct device *dev = drvr->bus_if->dev; @@ -50,6 +83,7 @@ int brcmf_debugfs_attach(struct brcmf_pub *drvr) return -ENODEV; drvr->dbgfs_dir = debugfs_create_dir(dev_name(dev), root_folder); + brcmf_debugfs_create_chipinfo(drvr); return PTR_ERR_OR_ZERO(drvr->dbgfs_dir); } |