From 18b70ac9c7fd640cbd5921b5ca2705db0f8b9d83 Mon Sep 17 00:00:00 2001 From: Luciano Coelho Date: Thu, 7 Jun 2012 23:39:27 +0300 Subject: wlcore/wl18xx: export conf struct in a debugfs file Add conf file header structure, magic and version values and export the entire conf struct in debugfs. Signed-off-by: Luciano Coelho --- drivers/net/wireless/ti/wl18xx/debugfs.c | 44 ++++++++++++++++++++++++++++++++ 1 file changed, 44 insertions(+) (limited to 'drivers/net/wireless/ti/wl18xx/debugfs.c') diff --git a/drivers/net/wireless/ti/wl18xx/debugfs.c b/drivers/net/wireless/ti/wl18xx/debugfs.c index 468651c2f54..96b14966290 100644 --- a/drivers/net/wireless/ti/wl18xx/debugfs.c +++ b/drivers/net/wireless/ti/wl18xx/debugfs.c @@ -158,6 +158,48 @@ WL18XX_DEBUGFS_FWSTATS_FILE(mem, tx_free_mem_blks, "%u"); WL18XX_DEBUGFS_FWSTATS_FILE(mem, fwlog_free_mem_blks, "%u"); WL18XX_DEBUGFS_FWSTATS_FILE(mem, fw_gen_free_mem_blks, "%u"); +static ssize_t conf_read(struct file *file, char __user *user_buf, + size_t count, loff_t *ppos) +{ + struct wl1271 *wl = file->private_data; + struct wl18xx_priv *priv = wl->priv; + struct wlcore_conf_header header; + char *buf, *pos; + size_t len; + int ret; + + len = WL18XX_CONF_SIZE; + buf = kmalloc(len, GFP_KERNEL); + if (!buf) + return -ENOMEM; + + header.magic = cpu_to_le32(WL18XX_CONF_MAGIC); + header.version = cpu_to_le32(WL18XX_CONF_VERSION); + header.checksum = 0; + + mutex_lock(&wl->mutex); + + pos = buf; + memcpy(pos, &header, sizeof(header)); + pos += sizeof(header); + memcpy(pos, &wl->conf, sizeof(wl->conf)); + pos += sizeof(wl->conf); + memcpy(pos, &priv->conf, sizeof(priv->conf)); + + mutex_unlock(&wl->mutex); + + ret = simple_read_from_buffer(user_buf, count, ppos, buf, len); + + kfree(buf); + return ret; +} + +static const struct file_operations conf_ops = { + .read = conf_read, + .open = simple_open, + .llseek = default_llseek, +}; + static ssize_t clear_fw_stats_write(struct file *file, const char __user *user_buf, size_t count, loff_t *ppos) @@ -327,6 +369,8 @@ int wl18xx_debugfs_add_files(struct wl1271 *wl, DEBUGFS_FWSTATS_ADD(mem, fwlog_free_mem_blks); DEBUGFS_FWSTATS_ADD(mem, fw_gen_free_mem_blks); + DEBUGFS_ADD(conf, moddir); + return 0; err: -- cgit v1.2.3-70-g09d2