--- /dev/null
- ssize_t buf_size, ret;
+ #include <linux/dcache.h>
+ #include <linux/debugfs.h>
+ #include <linux/delay.h>
+ #include <linux/hardirq.h>
+ #include <linux/mm.h>
+ #include <linux/string.h>
+ #include <linux/slab.h>
+ #include <linux/export.h>
+
+ #include "decl.h"
+ #include "cmd.h"
+ #include "debugfs.h"
+
+ static struct dentry *lbs_dir;
+ static char *szStates[] = {
+ "Connected",
+ "Disconnected"
+ };
+
+ #ifdef PROC_DEBUG
+ static void lbs_debug_init(struct lbs_private *priv);
+ #endif
+
+ static ssize_t write_file_dummy(struct file *file, const char __user *buf,
+ size_t count, loff_t *ppos)
+ {
+ return -EINVAL;
+ }
+
+ static const size_t len = PAGE_SIZE;
+
+ static ssize_t lbs_dev_info(struct file *file, char __user *userbuf,
+ size_t count, loff_t *ppos)
+ {
+ struct lbs_private *priv = file->private_data;
+ size_t pos = 0;
+ unsigned long addr = get_zeroed_page(GFP_KERNEL);
+ char *buf = (char *)addr;
+ ssize_t res;
+ if (!buf)
+ return -ENOMEM;
+
+ pos += snprintf(buf+pos, len-pos, "state = %s\n",
+ szStates[priv->connect_status]);
+ pos += snprintf(buf+pos, len-pos, "region_code = %02x\n",
+ (u32) priv->regioncode);
+
+ res = simple_read_from_buffer(userbuf, count, ppos, buf, pos);
+
+ free_page(addr);
+ return res;
+ }
+
+ static ssize_t lbs_sleepparams_write(struct file *file,
+ const char __user *user_buf, size_t count,
+ loff_t *ppos)
+ {
+ struct lbs_private *priv = file->private_data;
- unsigned long addr = get_zeroed_page(GFP_KERNEL);
- char *buf = (char *)addr;
- if (!buf)
- return -ENOMEM;
++ ssize_t ret;
+ struct sleep_params sp;
+ int p1, p2, p3, p4, p5, p6;
- buf_size = min(count, len - 1);
- if (copy_from_user(buf, user_buf, buf_size)) {
- ret = -EFAULT;
- goto out_unlock;
- }
++ char *buf;
++
++ buf = memdup_user_nul(user_buf, min(count, len - 1));
++ if (IS_ERR(buf))
++ return PTR_ERR(buf);
+
- free_page(addr);
+ ret = sscanf(buf, "%d %d %d %d %d %d", &p1, &p2, &p3, &p4, &p5, &p6);
+ if (ret != 6) {
+ ret = -EINVAL;
+ goto out_unlock;
+ }
+ sp.sp_error = p1;
+ sp.sp_offset = p2;
+ sp.sp_stabletime = p3;
+ sp.sp_calcontrol = p4;
+ sp.sp_extsleepclk = p5;
+ sp.sp_reserved = p6;
+
+ ret = lbs_cmd_802_11_sleep_params(priv, CMD_ACT_SET, &sp);
+ if (!ret)
+ ret = count;
+ else if (ret > 0)
+ ret = -EINVAL;
+
+ out_unlock:
- ssize_t buf_size, ret;
++ kfree(buf);
+ return ret;
+ }
+
+ static ssize_t lbs_sleepparams_read(struct file *file, char __user *userbuf,
+ size_t count, loff_t *ppos)
+ {
+ struct lbs_private *priv = file->private_data;
+ ssize_t ret;
+ size_t pos = 0;
+ struct sleep_params sp;
+ unsigned long addr = get_zeroed_page(GFP_KERNEL);
+ char *buf = (char *)addr;
+ if (!buf)
+ return -ENOMEM;
+
+ ret = lbs_cmd_802_11_sleep_params(priv, CMD_ACT_GET, &sp);
+ if (ret)
+ goto out_unlock;
+
+ pos += snprintf(buf, len, "%d %d %d %d %d %d\n", sp.sp_error,
+ sp.sp_offset, sp.sp_stabletime,
+ sp.sp_calcontrol, sp.sp_extsleepclk,
+ sp.sp_reserved);
+
+ ret = simple_read_from_buffer(userbuf, count, ppos, buf, pos);
+
+ out_unlock:
+ free_page(addr);
+ return ret;
+ }
+
+ static ssize_t lbs_host_sleep_write(struct file *file,
+ const char __user *user_buf, size_t count,
+ loff_t *ppos)
+ {
+ struct lbs_private *priv = file->private_data;
- unsigned long addr = get_zeroed_page(GFP_KERNEL);
- char *buf = (char *)addr;
- if (!buf)
- return -ENOMEM;
++ ssize_t ret;
+ int host_sleep;
- buf_size = min(count, len - 1);
- if (copy_from_user(buf, user_buf, buf_size)) {
- ret = -EFAULT;
- goto out_unlock;
- }
++ char *buf;
++
++ buf = memdup_user_nul(user_buf, min(count, len - 1));
++ if (IS_ERR(buf))
++ return PTR_ERR(buf);
+
- free_page(addr);
+ ret = sscanf(buf, "%d", &host_sleep);
+ if (ret != 1) {
+ ret = -EINVAL;
+ goto out_unlock;
+ }
+
+ if (host_sleep == 0)
+ ret = lbs_set_host_sleep(priv, 0);
+ else if (host_sleep == 1) {
+ if (priv->wol_criteria == EHS_REMOVE_WAKEUP) {
+ netdev_info(priv->dev,
+ "wake parameters not configured\n");
+ ret = -EINVAL;
+ goto out_unlock;
+ }
+ ret = lbs_set_host_sleep(priv, 1);
+ } else {
+ netdev_err(priv->dev, "invalid option\n");
+ ret = -EINVAL;
+ }
+
+ if (!ret)
+ ret = count;
+
+ out_unlock:
- ssize_t buf_size;
++ kfree(buf);
+ return ret;
+ }
+
+ static ssize_t lbs_host_sleep_read(struct file *file, char __user *userbuf,
+ size_t count, loff_t *ppos)
+ {
+ struct lbs_private *priv = file->private_data;
+ ssize_t ret;
+ size_t pos = 0;
+ unsigned long addr = get_zeroed_page(GFP_KERNEL);
+ char *buf = (char *)addr;
+ if (!buf)
+ return -ENOMEM;
+
+ pos += snprintf(buf, len, "%d\n", priv->is_host_sleep_activated);
+
+ ret = simple_read_from_buffer(userbuf, count, ppos, buf, pos);
+
+ free_page(addr);
+ return ret;
+ }
+
+ /*
+ * When calling CMD_802_11_SUBSCRIBE_EVENT with CMD_ACT_GET, me might
+ * get a bunch of vendor-specific TLVs (a.k.a. IEs) back from the
+ * firmware. Here's an example:
+ * 04 01 02 00 00 00 05 01 02 00 00 00 06 01 02 00
+ * 00 00 07 01 02 00 3c 00 00 00 00 00 00 00 03 03
+ * 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00
+ *
+ * The 04 01 is the TLV type (here TLV_TYPE_RSSI_LOW), 02 00 is the length,
+ * 00 00 are the data bytes of this TLV. For this TLV, their meaning is
+ * defined in mrvlietypes_thresholds
+ *
+ * This function searches in this TLV data chunk for a given TLV type
+ * and returns a pointer to the first data byte of the TLV, or to NULL
+ * if the TLV hasn't been found.
+ */
+ static void *lbs_tlv_find(uint16_t tlv_type, const uint8_t *tlv, uint16_t size)
+ {
+ struct mrvl_ie_header *tlv_h;
+ uint16_t length;
+ ssize_t pos = 0;
+
+ while (pos < size) {
+ tlv_h = (struct mrvl_ie_header *) tlv;
+ if (!tlv_h->len)
+ return NULL;
+ if (tlv_h->type == cpu_to_le16(tlv_type))
+ return tlv_h;
+ length = le16_to_cpu(tlv_h->len) + sizeof(*tlv_h);
+ pos += length;
+ tlv += length;
+ }
+ return NULL;
+ }
+
+
+ static ssize_t lbs_threshold_read(uint16_t tlv_type, uint16_t event_mask,
+ struct file *file, char __user *userbuf,
+ size_t count, loff_t *ppos)
+ {
+ struct cmd_ds_802_11_subscribe_event *subscribed;
+ struct mrvl_ie_thresholds *got;
+ struct lbs_private *priv = file->private_data;
+ ssize_t ret = 0;
+ size_t pos = 0;
+ char *buf;
+ u8 value;
+ u8 freq;
+ int events = 0;
+
+ buf = (char *)get_zeroed_page(GFP_KERNEL);
+ if (!buf)
+ return -ENOMEM;
+
+ subscribed = kzalloc(sizeof(*subscribed), GFP_KERNEL);
+ if (!subscribed) {
+ ret = -ENOMEM;
+ goto out_page;
+ }
+
+ subscribed->hdr.size = cpu_to_le16(sizeof(*subscribed));
+ subscribed->action = cpu_to_le16(CMD_ACT_GET);
+
+ ret = lbs_cmd_with_response(priv, CMD_802_11_SUBSCRIBE_EVENT, subscribed);
+ if (ret)
+ goto out_cmd;
+
+ got = lbs_tlv_find(tlv_type, subscribed->tlv, sizeof(subscribed->tlv));
+ if (got) {
+ value = got->value;
+ freq = got->freq;
+ events = le16_to_cpu(subscribed->events);
+
+ pos += snprintf(buf, len, "%d %d %d\n", value, freq,
+ !!(events & event_mask));
+ }
+
+ ret = simple_read_from_buffer(userbuf, count, ppos, buf, pos);
+
+ out_cmd:
+ kfree(subscribed);
+
+ out_page:
+ free_page((unsigned long)buf);
+ return ret;
+ }
+
+
+ static ssize_t lbs_threshold_write(uint16_t tlv_type, uint16_t event_mask,
+ struct file *file,
+ const char __user *userbuf, size_t count,
+ loff_t *ppos)
+ {
+ struct cmd_ds_802_11_subscribe_event *events;
+ struct mrvl_ie_thresholds *tlv;
+ struct lbs_private *priv = file->private_data;
- buf = (char *)get_zeroed_page(GFP_KERNEL);
- if (!buf)
- return -ENOMEM;
+ int value, freq, new_mask;
+ uint16_t curr_mask;
+ char *buf;
+ int ret;
+
- buf_size = min(count, len - 1);
- if (copy_from_user(buf, userbuf, buf_size)) {
- ret = -EFAULT;
- goto out_page;
- }
++ buf = memdup_user_nul(userbuf, min(count, len - 1));
++ if (IS_ERR(buf))
++ return PTR_ERR(buf);
+
- free_page((unsigned long)buf);
+ ret = sscanf(buf, "%d %d %d", &value, &freq, &new_mask);
+ if (ret != 3) {
+ ret = -EINVAL;
+ goto out_page;
+ }
+ events = kzalloc(sizeof(*events), GFP_KERNEL);
+ if (!events) {
+ ret = -ENOMEM;
+ goto out_page;
+ }
+
+ events->hdr.size = cpu_to_le16(sizeof(*events));
+ events->action = cpu_to_le16(CMD_ACT_GET);
+
+ ret = lbs_cmd_with_response(priv, CMD_802_11_SUBSCRIBE_EVENT, events);
+ if (ret)
+ goto out_events;
+
+ curr_mask = le16_to_cpu(events->events);
+
+ if (new_mask)
+ new_mask = curr_mask | event_mask;
+ else
+ new_mask = curr_mask & ~event_mask;
+
+ /* Now everything is set and we can send stuff down to the firmware */
+
+ tlv = (void *)events->tlv;
+
+ events->action = cpu_to_le16(CMD_ACT_SET);
+ events->events = cpu_to_le16(new_mask);
+ tlv->header.type = cpu_to_le16(tlv_type);
+ tlv->header.len = cpu_to_le16(sizeof(*tlv) - sizeof(tlv->header));
+ tlv->value = value;
+ if (tlv_type != TLV_TYPE_BCNMISS)
+ tlv->freq = freq;
+
+ /* The command header, the action, the event mask, and one TLV */
+ events->hdr.size = cpu_to_le16(sizeof(events->hdr) + 4 + sizeof(*tlv));
+
+ ret = lbs_cmd_with_response(priv, CMD_802_11_SUBSCRIBE_EVENT, events);
+
+ if (!ret)
+ ret = count;
+ out_events:
+ kfree(events);
+ out_page:
- ssize_t res, buf_size;
- unsigned long addr = get_zeroed_page(GFP_KERNEL);
- char *buf = (char *)addr;
- if (!buf)
- return -ENOMEM;
++ kfree(buf);
+ return ret;
+ }
+
+
+ static ssize_t lbs_lowrssi_read(struct file *file, char __user *userbuf,
+ size_t count, loff_t *ppos)
+ {
+ return lbs_threshold_read(TLV_TYPE_RSSI_LOW, CMD_SUBSCRIBE_RSSI_LOW,
+ file, userbuf, count, ppos);
+ }
+
+
+ static ssize_t lbs_lowrssi_write(struct file *file, const char __user *userbuf,
+ size_t count, loff_t *ppos)
+ {
+ return lbs_threshold_write(TLV_TYPE_RSSI_LOW, CMD_SUBSCRIBE_RSSI_LOW,
+ file, userbuf, count, ppos);
+ }
+
+
+ static ssize_t lbs_lowsnr_read(struct file *file, char __user *userbuf,
+ size_t count, loff_t *ppos)
+ {
+ return lbs_threshold_read(TLV_TYPE_SNR_LOW, CMD_SUBSCRIBE_SNR_LOW,
+ file, userbuf, count, ppos);
+ }
+
+
+ static ssize_t lbs_lowsnr_write(struct file *file, const char __user *userbuf,
+ size_t count, loff_t *ppos)
+ {
+ return lbs_threshold_write(TLV_TYPE_SNR_LOW, CMD_SUBSCRIBE_SNR_LOW,
+ file, userbuf, count, ppos);
+ }
+
+
+ static ssize_t lbs_failcount_read(struct file *file, char __user *userbuf,
+ size_t count, loff_t *ppos)
+ {
+ return lbs_threshold_read(TLV_TYPE_FAILCOUNT, CMD_SUBSCRIBE_FAILCOUNT,
+ file, userbuf, count, ppos);
+ }
+
+
+ static ssize_t lbs_failcount_write(struct file *file, const char __user *userbuf,
+ size_t count, loff_t *ppos)
+ {
+ return lbs_threshold_write(TLV_TYPE_FAILCOUNT, CMD_SUBSCRIBE_FAILCOUNT,
+ file, userbuf, count, ppos);
+ }
+
+
+ static ssize_t lbs_highrssi_read(struct file *file, char __user *userbuf,
+ size_t count, loff_t *ppos)
+ {
+ return lbs_threshold_read(TLV_TYPE_RSSI_HIGH, CMD_SUBSCRIBE_RSSI_HIGH,
+ file, userbuf, count, ppos);
+ }
+
+
+ static ssize_t lbs_highrssi_write(struct file *file, const char __user *userbuf,
+ size_t count, loff_t *ppos)
+ {
+ return lbs_threshold_write(TLV_TYPE_RSSI_HIGH, CMD_SUBSCRIBE_RSSI_HIGH,
+ file, userbuf, count, ppos);
+ }
+
+
+ static ssize_t lbs_highsnr_read(struct file *file, char __user *userbuf,
+ size_t count, loff_t *ppos)
+ {
+ return lbs_threshold_read(TLV_TYPE_SNR_HIGH, CMD_SUBSCRIBE_SNR_HIGH,
+ file, userbuf, count, ppos);
+ }
+
+
+ static ssize_t lbs_highsnr_write(struct file *file, const char __user *userbuf,
+ size_t count, loff_t *ppos)
+ {
+ return lbs_threshold_write(TLV_TYPE_SNR_HIGH, CMD_SUBSCRIBE_SNR_HIGH,
+ file, userbuf, count, ppos);
+ }
+
+ static ssize_t lbs_bcnmiss_read(struct file *file, char __user *userbuf,
+ size_t count, loff_t *ppos)
+ {
+ return lbs_threshold_read(TLV_TYPE_BCNMISS, CMD_SUBSCRIBE_BCNMISS,
+ file, userbuf, count, ppos);
+ }
+
+
+ static ssize_t lbs_bcnmiss_write(struct file *file, const char __user *userbuf,
+ size_t count, loff_t *ppos)
+ {
+ return lbs_threshold_write(TLV_TYPE_BCNMISS, CMD_SUBSCRIBE_BCNMISS,
+ file, userbuf, count, ppos);
+ }
+
+
+ static ssize_t lbs_rdmac_read(struct file *file, char __user *userbuf,
+ size_t count, loff_t *ppos)
+ {
+ struct lbs_private *priv = file->private_data;
+ ssize_t pos = 0;
+ int ret;
+ unsigned long addr = get_zeroed_page(GFP_KERNEL);
+ char *buf = (char *)addr;
+ u32 val = 0;
+
+ if (!buf)
+ return -ENOMEM;
+
+ ret = lbs_get_reg(priv, CMD_MAC_REG_ACCESS, priv->mac_offset, &val);
+ mdelay(10);
+ if (!ret) {
+ pos = snprintf(buf, len, "MAC[0x%x] = 0x%08x\n",
+ priv->mac_offset, val);
+ ret = simple_read_from_buffer(userbuf, count, ppos, buf, pos);
+ }
+ free_page(addr);
+ return ret;
+ }
+
+ static ssize_t lbs_rdmac_write(struct file *file,
+ const char __user *userbuf,
+ size_t count, loff_t *ppos)
+ {
+ struct lbs_private *priv = file->private_data;
- buf_size = min(count, len - 1);
- if (copy_from_user(buf, userbuf, buf_size)) {
- res = -EFAULT;
- goto out_unlock;
- }
++ char *buf;
++
++ buf = memdup_user_nul(userbuf, min(count, len - 1));
++ if (IS_ERR(buf))
++ return PTR_ERR(buf);
+
- res = count;
-out_unlock:
- free_page(addr);
- return res;
+ priv->mac_offset = simple_strtoul(buf, NULL, 16);
- ssize_t res, buf_size;
++ kfree(buf);
++ return count;
+ }
+
+ static ssize_t lbs_wrmac_write(struct file *file,
+ const char __user *userbuf,
+ size_t count, loff_t *ppos)
+ {
+
+ struct lbs_private *priv = file->private_data;
- unsigned long addr = get_zeroed_page(GFP_KERNEL);
- char *buf = (char *)addr;
- if (!buf)
- return -ENOMEM;
++ ssize_t res;
+ u32 offset, value;
- buf_size = min(count, len - 1);
- if (copy_from_user(buf, userbuf, buf_size)) {
- res = -EFAULT;
- goto out_unlock;
- }
++ char *buf;
++
++ buf = memdup_user_nul(userbuf, min(count, len - 1));
++ if (IS_ERR(buf))
++ return PTR_ERR(buf);
+
- free_page(addr);
+ res = sscanf(buf, "%x %x", &offset, &value);
+ if (res != 2) {
+ res = -EFAULT;
+ goto out_unlock;
+ }
+
+ res = lbs_set_reg(priv, CMD_MAC_REG_ACCESS, offset, value);
+ mdelay(10);
+
+ if (!res)
+ res = count;
+ out_unlock:
- ssize_t res, buf_size;
- unsigned long addr = get_zeroed_page(GFP_KERNEL);
- char *buf = (char *)addr;
- if (!buf)
- return -ENOMEM;
++ kfree(buf);
+ return res;
+ }
+
+ static ssize_t lbs_rdbbp_read(struct file *file, char __user *userbuf,
+ size_t count, loff_t *ppos)
+ {
+ struct lbs_private *priv = file->private_data;
+ ssize_t pos = 0;
+ int ret;
+ unsigned long addr = get_zeroed_page(GFP_KERNEL);
+ char *buf = (char *)addr;
+ u32 val;
+
+ if (!buf)
+ return -ENOMEM;
+
+ ret = lbs_get_reg(priv, CMD_BBP_REG_ACCESS, priv->bbp_offset, &val);
+ mdelay(10);
+ if (!ret) {
+ pos = snprintf(buf, len, "BBP[0x%x] = 0x%08x\n",
+ priv->bbp_offset, val);
+ ret = simple_read_from_buffer(userbuf, count, ppos, buf, pos);
+ }
+ free_page(addr);
+
+ return ret;
+ }
+
+ static ssize_t lbs_rdbbp_write(struct file *file,
+ const char __user *userbuf,
+ size_t count, loff_t *ppos)
+ {
+ struct lbs_private *priv = file->private_data;
- buf_size = min(count, len - 1);
- if (copy_from_user(buf, userbuf, buf_size)) {
- res = -EFAULT;
- goto out_unlock;
- }
++ char *buf;
++
++ buf = memdup_user_nul(userbuf, min(count, len - 1));
++ if (IS_ERR(buf))
++ return PTR_ERR(buf);
+
- res = count;
-out_unlock:
- free_page(addr);
- return res;
+ priv->bbp_offset = simple_strtoul(buf, NULL, 16);
- ssize_t res, buf_size;
++ kfree(buf);
++
++ return count;
+ }
+
+ static ssize_t lbs_wrbbp_write(struct file *file,
+ const char __user *userbuf,
+ size_t count, loff_t *ppos)
+ {
+
+ struct lbs_private *priv = file->private_data;
- unsigned long addr = get_zeroed_page(GFP_KERNEL);
- char *buf = (char *)addr;
- if (!buf)
- return -ENOMEM;
++ ssize_t res;
+ u32 offset, value;
- buf_size = min(count, len - 1);
- if (copy_from_user(buf, userbuf, buf_size)) {
- res = -EFAULT;
- goto out_unlock;
- }
++ char *buf;
++
++ buf = memdup_user_nul(userbuf, min(count, len - 1));
++ if (IS_ERR(buf))
++ return PTR_ERR(buf);
+
- free_page(addr);
+ res = sscanf(buf, "%x %x", &offset, &value);
+ if (res != 2) {
+ res = -EFAULT;
+ goto out_unlock;
+ }
+
+ res = lbs_set_reg(priv, CMD_BBP_REG_ACCESS, offset, value);
+ mdelay(10);
+
+ if (!res)
+ res = count;
+ out_unlock:
- ssize_t res, buf_size;
- unsigned long addr = get_zeroed_page(GFP_KERNEL);
- char *buf = (char *)addr;
- if (!buf)
- return -ENOMEM;
++ kfree(buf);
+ return res;
+ }
+
+ static ssize_t lbs_rdrf_read(struct file *file, char __user *userbuf,
+ size_t count, loff_t *ppos)
+ {
+ struct lbs_private *priv = file->private_data;
+ ssize_t pos = 0;
+ int ret;
+ unsigned long addr = get_zeroed_page(GFP_KERNEL);
+ char *buf = (char *)addr;
+ u32 val;
+
+ if (!buf)
+ return -ENOMEM;
+
+ ret = lbs_get_reg(priv, CMD_RF_REG_ACCESS, priv->rf_offset, &val);
+ mdelay(10);
+ if (!ret) {
+ pos = snprintf(buf, len, "RF[0x%x] = 0x%08x\n",
+ priv->rf_offset, val);
+ ret = simple_read_from_buffer(userbuf, count, ppos, buf, pos);
+ }
+ free_page(addr);
+
+ return ret;
+ }
+
+ static ssize_t lbs_rdrf_write(struct file *file,
+ const char __user *userbuf,
+ size_t count, loff_t *ppos)
+ {
+ struct lbs_private *priv = file->private_data;
- buf_size = min(count, len - 1);
- if (copy_from_user(buf, userbuf, buf_size)) {
- res = -EFAULT;
- goto out_unlock;
- }
++ char *buf;
++
++ buf = memdup_user_nul(userbuf, min(count, len - 1));
++ if (IS_ERR(buf))
++ return PTR_ERR(buf);
+
- res = count;
-out_unlock:
- free_page(addr);
- return res;
+ priv->rf_offset = simple_strtoul(buf, NULL, 16);
- ssize_t res, buf_size;
++ kfree(buf);
++ return count;
+ }
+
+ static ssize_t lbs_wrrf_write(struct file *file,
+ const char __user *userbuf,
+ size_t count, loff_t *ppos)
+ {
+
+ struct lbs_private *priv = file->private_data;
- unsigned long addr = get_zeroed_page(GFP_KERNEL);
- char *buf = (char *)addr;
- if (!buf)
- return -ENOMEM;
++ ssize_t res;
+ u32 offset, value;
- buf_size = min(count, len - 1);
- if (copy_from_user(buf, userbuf, buf_size)) {
- res = -EFAULT;
- goto out_unlock;
- }
++ char *buf;
++
++ buf = memdup_user_nul(userbuf, min(count, len - 1));
++ if (IS_ERR(buf))
++ return PTR_ERR(buf);
+
- free_page(addr);
+ res = sscanf(buf, "%x %x", &offset, &value);
+ if (res != 2) {
+ res = -EFAULT;
+ goto out_unlock;
+ }
+
+ res = lbs_set_reg(priv, CMD_RF_REG_ACCESS, offset, value);
+ mdelay(10);
+
+ if (!res)
+ res = count;
+ out_unlock:
- pdata = kmalloc(cnt + 1, GFP_KERNEL);
- if (pdata == NULL)
- return 0;
-
- if (copy_from_user(pdata, buf, cnt)) {
- lbs_deb_debugfs("Copy from user failed\n");
- kfree(pdata);
- return 0;
- }
- pdata[cnt] = '\0';
++ kfree(buf);
+ return res;
+ }
+
+ #define FOPS(fread, fwrite) { \
+ .owner = THIS_MODULE, \
+ .open = simple_open, \
+ .read = (fread), \
+ .write = (fwrite), \
+ .llseek = generic_file_llseek, \
+ }
+
+ struct lbs_debugfs_files {
+ const char *name;
+ umode_t perm;
+ struct file_operations fops;
+ };
+
+ static const struct lbs_debugfs_files debugfs_files[] = {
+ { "info", 0444, FOPS(lbs_dev_info, write_file_dummy), },
+ { "sleepparams", 0644, FOPS(lbs_sleepparams_read,
+ lbs_sleepparams_write), },
+ { "hostsleep", 0644, FOPS(lbs_host_sleep_read,
+ lbs_host_sleep_write), },
+ };
+
+ static const struct lbs_debugfs_files debugfs_events_files[] = {
+ {"low_rssi", 0644, FOPS(lbs_lowrssi_read,
+ lbs_lowrssi_write), },
+ {"low_snr", 0644, FOPS(lbs_lowsnr_read,
+ lbs_lowsnr_write), },
+ {"failure_count", 0644, FOPS(lbs_failcount_read,
+ lbs_failcount_write), },
+ {"beacon_missed", 0644, FOPS(lbs_bcnmiss_read,
+ lbs_bcnmiss_write), },
+ {"high_rssi", 0644, FOPS(lbs_highrssi_read,
+ lbs_highrssi_write), },
+ {"high_snr", 0644, FOPS(lbs_highsnr_read,
+ lbs_highsnr_write), },
+ };
+
+ static const struct lbs_debugfs_files debugfs_regs_files[] = {
+ {"rdmac", 0644, FOPS(lbs_rdmac_read, lbs_rdmac_write), },
+ {"wrmac", 0600, FOPS(NULL, lbs_wrmac_write), },
+ {"rdbbp", 0644, FOPS(lbs_rdbbp_read, lbs_rdbbp_write), },
+ {"wrbbp", 0600, FOPS(NULL, lbs_wrbbp_write), },
+ {"rdrf", 0644, FOPS(lbs_rdrf_read, lbs_rdrf_write), },
+ {"wrrf", 0600, FOPS(NULL, lbs_wrrf_write), },
+ };
+
+ void lbs_debugfs_init(void)
+ {
+ if (!lbs_dir)
+ lbs_dir = debugfs_create_dir("lbs_wireless", NULL);
+ }
+
+ void lbs_debugfs_remove(void)
+ {
+ debugfs_remove(lbs_dir);
+ }
+
+ void lbs_debugfs_init_one(struct lbs_private *priv, struct net_device *dev)
+ {
+ int i;
+ const struct lbs_debugfs_files *files;
+ if (!lbs_dir)
+ goto exit;
+
+ priv->debugfs_dir = debugfs_create_dir(dev->name, lbs_dir);
+ if (!priv->debugfs_dir)
+ goto exit;
+
+ for (i=0; i<ARRAY_SIZE(debugfs_files); i++) {
+ files = &debugfs_files[i];
+ priv->debugfs_files[i] = debugfs_create_file(files->name,
+ files->perm,
+ priv->debugfs_dir,
+ priv,
+ &files->fops);
+ }
+
+ priv->events_dir = debugfs_create_dir("subscribed_events", priv->debugfs_dir);
+ if (!priv->events_dir)
+ goto exit;
+
+ for (i=0; i<ARRAY_SIZE(debugfs_events_files); i++) {
+ files = &debugfs_events_files[i];
+ priv->debugfs_events_files[i] = debugfs_create_file(files->name,
+ files->perm,
+ priv->events_dir,
+ priv,
+ &files->fops);
+ }
+
+ priv->regs_dir = debugfs_create_dir("registers", priv->debugfs_dir);
+ if (!priv->regs_dir)
+ goto exit;
+
+ for (i=0; i<ARRAY_SIZE(debugfs_regs_files); i++) {
+ files = &debugfs_regs_files[i];
+ priv->debugfs_regs_files[i] = debugfs_create_file(files->name,
+ files->perm,
+ priv->regs_dir,
+ priv,
+ &files->fops);
+ }
+
+ #ifdef PROC_DEBUG
+ lbs_debug_init(priv);
+ #endif
+ exit:
+ return;
+ }
+
+ void lbs_debugfs_remove_one(struct lbs_private *priv)
+ {
+ int i;
+
+ for(i=0; i<ARRAY_SIZE(debugfs_regs_files); i++)
+ debugfs_remove(priv->debugfs_regs_files[i]);
+
+ debugfs_remove(priv->regs_dir);
+
+ for(i=0; i<ARRAY_SIZE(debugfs_events_files); i++)
+ debugfs_remove(priv->debugfs_events_files[i]);
+
+ debugfs_remove(priv->events_dir);
+ #ifdef PROC_DEBUG
+ debugfs_remove(priv->debugfs_debug);
+ #endif
+ for(i=0; i<ARRAY_SIZE(debugfs_files); i++)
+ debugfs_remove(priv->debugfs_files[i]);
+ debugfs_remove(priv->debugfs_dir);
+ }
+
+
+
+ /* debug entry */
+
+ #ifdef PROC_DEBUG
+
+ #define item_size(n) (FIELD_SIZEOF(struct lbs_private, n))
+ #define item_addr(n) (offsetof(struct lbs_private, n))
+
+
+ struct debug_data {
+ char name[32];
+ u32 size;
+ size_t addr;
+ };
+
+ /* To debug any member of struct lbs_private, simply add one line here.
+ */
+ static struct debug_data items[] = {
+ {"psmode", item_size(psmode), item_addr(psmode)},
+ {"psstate", item_size(psstate), item_addr(psstate)},
+ };
+
+ static int num_of_items = ARRAY_SIZE(items);
+
+ /**
+ * lbs_debugfs_read - proc read function
+ *
+ * @file: file to read
+ * @userbuf: pointer to buffer
+ * @count: number of bytes to read
+ * @ppos: read data starting position
+ *
+ * returns: amount of data read or negative error code
+ */
+ static ssize_t lbs_debugfs_read(struct file *file, char __user *userbuf,
+ size_t count, loff_t *ppos)
+ {
+ int val = 0;
+ size_t pos = 0;
+ ssize_t res;
+ char *p;
+ int i;
+ struct debug_data *d;
+ unsigned long addr = get_zeroed_page(GFP_KERNEL);
+ char *buf = (char *)addr;
+ if (!buf)
+ return -ENOMEM;
+
+ p = buf;
+
+ d = file->private_data;
+
+ for (i = 0; i < num_of_items; i++) {
+ if (d[i].size == 1)
+ val = *((u8 *) d[i].addr);
+ else if (d[i].size == 2)
+ val = *((u16 *) d[i].addr);
+ else if (d[i].size == 4)
+ val = *((u32 *) d[i].addr);
+ else if (d[i].size == 8)
+ val = *((u64 *) d[i].addr);
+
+ pos += sprintf(p + pos, "%s=%d\n", d[i].name, val);
+ }
+
+ res = simple_read_from_buffer(userbuf, count, ppos, p, pos);
+
+ free_page(addr);
+ return res;
+ }
+
+ /**
+ * lbs_debugfs_write - proc write function
+ *
+ * @f: file pointer
+ * @buf: pointer to data buffer
+ * @cnt: data number to write
+ * @ppos: file position
+ *
+ * returns: amount of data written
+ */
+ static ssize_t lbs_debugfs_write(struct file *f, const char __user *buf,
+ size_t cnt, loff_t *ppos)
+ {
+ int r, i;
+ char *pdata;
+ char *p;
+ char *p0;
+ char *p1;
+ char *p2;
+ struct debug_data *d = f->private_data;
+
+ if (cnt == 0)
+ return 0;
+
++ pdata = memdup_user_nul(buf, cnt);
++ if (IS_ERR(pdata))
++ return PTR_ERR(pdata);
+
+ p0 = pdata;
+ for (i = 0; i < num_of_items; i++) {
+ do {
+ p = strstr(p0, d[i].name);
+ if (p == NULL)
+ break;
+ p1 = strchr(p, '\n');
+ if (p1 == NULL)
+ break;
+ p0 = p1++;
+ p2 = strchr(p, '=');
+ if (!p2)
+ break;
+ p2++;
+ r = simple_strtoul(p2, NULL, 0);
+ if (d[i].size == 1)
+ *((u8 *) d[i].addr) = (u8) r;
+ else if (d[i].size == 2)
+ *((u16 *) d[i].addr) = (u16) r;
+ else if (d[i].size == 4)
+ *((u32 *) d[i].addr) = (u32) r;
+ else if (d[i].size == 8)
+ *((u64 *) d[i].addr) = (u64) r;
+ break;
+ } while (1);
+ }
+ kfree(pdata);
+
+ return (ssize_t)cnt;
+ }
+
+ static const struct file_operations lbs_debug_fops = {
+ .owner = THIS_MODULE,
+ .open = simple_open,
+ .write = lbs_debugfs_write,
+ .read = lbs_debugfs_read,
+ .llseek = default_llseek,
+ };
+
+ /**
+ * lbs_debug_init - create debug proc file
+ *
+ * @priv: pointer to &struct lbs_private
+ *
+ * returns: N/A
+ */
+ static void lbs_debug_init(struct lbs_private *priv)
+ {
+ int i;
+
+ if (!priv->debugfs_dir)
+ return;
+
+ for (i = 0; i < num_of_items; i++)
+ items[i].addr += (size_t) priv;
+
+ priv->debugfs_debug = debugfs_create_file("debug", 0644,
+ priv->debugfs_dir, &items[0],
+ &lbs_debug_fops);
+ }
+ #endif
--- /dev/null
- unsigned long addr = get_zeroed_page(GFP_KERNEL);
- char *buf = (char *) addr;
- size_t buf_size = min_t(size_t, count, PAGE_SIZE - 1);
+ /*
+ * Marvell Wireless LAN device driver: debugfs
+ *
+ * Copyright (C) 2011-2014, Marvell International Ltd.
+ *
+ * This software file (the "File") is distributed by Marvell International
+ * Ltd. under the terms of the GNU General Public License Version 2, June 1991
+ * (the "License"). You may use, redistribute and/or modify this File in
+ * accordance with the terms and conditions of the License, a copy of which
+ * is available by writing to the Free Software Foundation, Inc.,
+ * 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA or on the
+ * worldwide web at http://www.gnu.org/licenses/old-licenses/gpl-2.0.txt.
+ *
+ * THE FILE IS DISTRIBUTED AS-IS, WITHOUT WARRANTY OF ANY KIND, AND THE
+ * IMPLIED WARRANTIES OF MERCHANTABILITY OR FITNESS FOR A PARTICULAR PURPOSE
+ * ARE EXPRESSLY DISCLAIMED. The License provides additional details about
+ * this warranty disclaimer.
+ */
+
+ #include <linux/debugfs.h>
+
+ #include "main.h"
+ #include "11n.h"
+
+
+ static struct dentry *mwifiex_dfs_dir;
+
+ static char *bss_modes[] = {
+ "UNSPECIFIED",
+ "ADHOC",
+ "STATION",
+ "AP",
+ "AP_VLAN",
+ "WDS",
+ "MONITOR",
+ "MESH_POINT",
+ "P2P_CLIENT",
+ "P2P_GO",
+ "P2P_DEVICE",
+ };
+
+ /*
+ * Proc info file read handler.
+ *
+ * This function is called when the 'info' file is opened for reading.
+ * It prints the following driver related information -
+ * - Driver name
+ * - Driver version
+ * - Driver extended version
+ * - Interface name
+ * - BSS mode
+ * - Media state (connected or disconnected)
+ * - MAC address
+ * - Total number of Tx bytes
+ * - Total number of Rx bytes
+ * - Total number of Tx packets
+ * - Total number of Rx packets
+ * - Total number of dropped Tx packets
+ * - Total number of dropped Rx packets
+ * - Total number of corrupted Tx packets
+ * - Total number of corrupted Rx packets
+ * - Carrier status (on or off)
+ * - Tx queue status (started or stopped)
+ *
+ * For STA mode drivers, it also prints the following extra -
+ * - ESSID
+ * - BSSID
+ * - Channel
+ * - Region code
+ * - Multicast count
+ * - Multicast addresses
+ */
+ static ssize_t
+ mwifiex_info_read(struct file *file, char __user *ubuf,
+ size_t count, loff_t *ppos)
+ {
+ struct mwifiex_private *priv =
+ (struct mwifiex_private *) file->private_data;
+ struct net_device *netdev = priv->netdev;
+ struct netdev_hw_addr *ha;
+ struct netdev_queue *txq;
+ unsigned long page = get_zeroed_page(GFP_KERNEL);
+ char *p = (char *) page, fmt[64];
+ struct mwifiex_bss_info info;
+ ssize_t ret;
+ int i = 0;
+
+ if (!p)
+ return -ENOMEM;
+
+ memset(&info, 0, sizeof(info));
+ ret = mwifiex_get_bss_info(priv, &info);
+ if (ret)
+ goto free_and_exit;
+
+ mwifiex_drv_get_driver_version(priv->adapter, fmt, sizeof(fmt) - 1);
+
+ if (!priv->version_str[0])
+ mwifiex_get_ver_ext(priv);
+
+ p += sprintf(p, "driver_name = " "\"mwifiex\"\n");
+ p += sprintf(p, "driver_version = %s", fmt);
+ p += sprintf(p, "\nverext = %s", priv->version_str);
+ p += sprintf(p, "\ninterface_name=\"%s\"\n", netdev->name);
+
+ if (info.bss_mode >= ARRAY_SIZE(bss_modes))
+ p += sprintf(p, "bss_mode=\"%d\"\n", info.bss_mode);
+ else
+ p += sprintf(p, "bss_mode=\"%s\"\n", bss_modes[info.bss_mode]);
+
+ p += sprintf(p, "media_state=\"%s\"\n",
+ (!priv->media_connected ? "Disconnected" : "Connected"));
+ p += sprintf(p, "mac_address=\"%pM\"\n", netdev->dev_addr);
+
+ if (GET_BSS_ROLE(priv) == MWIFIEX_BSS_ROLE_STA) {
+ p += sprintf(p, "multicast_count=\"%d\"\n",
+ netdev_mc_count(netdev));
+ p += sprintf(p, "essid=\"%s\"\n", info.ssid.ssid);
+ p += sprintf(p, "bssid=\"%pM\"\n", info.bssid);
+ p += sprintf(p, "channel=\"%d\"\n", (int) info.bss_chan);
+ p += sprintf(p, "country_code = \"%s\"\n", info.country_code);
+
+ netdev_for_each_mc_addr(ha, netdev)
+ p += sprintf(p, "multicast_address[%d]=\"%pM\"\n",
+ i++, ha->addr);
+ }
+
+ p += sprintf(p, "num_tx_bytes = %lu\n", priv->stats.tx_bytes);
+ p += sprintf(p, "num_rx_bytes = %lu\n", priv->stats.rx_bytes);
+ p += sprintf(p, "num_tx_pkts = %lu\n", priv->stats.tx_packets);
+ p += sprintf(p, "num_rx_pkts = %lu\n", priv->stats.rx_packets);
+ p += sprintf(p, "num_tx_pkts_dropped = %lu\n", priv->stats.tx_dropped);
+ p += sprintf(p, "num_rx_pkts_dropped = %lu\n", priv->stats.rx_dropped);
+ p += sprintf(p, "num_tx_pkts_err = %lu\n", priv->stats.tx_errors);
+ p += sprintf(p, "num_rx_pkts_err = %lu\n", priv->stats.rx_errors);
+ p += sprintf(p, "carrier %s\n", ((netif_carrier_ok(priv->netdev))
+ ? "on" : "off"));
+ p += sprintf(p, "tx queue");
+ for (i = 0; i < netdev->num_tx_queues; i++) {
+ txq = netdev_get_tx_queue(netdev, i);
+ p += sprintf(p, " %d:%s", i, netif_tx_queue_stopped(txq) ?
+ "stopped" : "started");
+ }
+ p += sprintf(p, "\n");
+
+ ret = simple_read_from_buffer(ubuf, count, ppos, (char *) page,
+ (unsigned long) p - page);
+
+ free_and_exit:
+ free_page(page);
+ return ret;
+ }
+
+ /*
+ * Proc device dump read handler.
+ *
+ * This function is called when the 'device_dump' file is opened for
+ * reading.
+ * This function dumps driver information and firmware memory segments
+ * (ex. DTCM, ITCM, SQRAM etc.) for
+ * debugging.
+ */
+ static ssize_t
+ mwifiex_device_dump_read(struct file *file, char __user *ubuf,
+ size_t count, loff_t *ppos)
+ {
+ struct mwifiex_private *priv = file->private_data;
+
+ if (!priv->adapter->if_ops.device_dump)
+ return -EIO;
+
+ priv->adapter->if_ops.device_dump(priv->adapter);
+
+ return 0;
+ }
+
+ /*
+ * Proc getlog file read handler.
+ *
+ * This function is called when the 'getlog' file is opened for reading
+ * It prints the following log information -
+ * - Number of multicast Tx frames
+ * - Number of failed packets
+ * - Number of Tx retries
+ * - Number of multicast Tx retries
+ * - Number of duplicate frames
+ * - Number of RTS successes
+ * - Number of RTS failures
+ * - Number of ACK failures
+ * - Number of fragmented Rx frames
+ * - Number of multicast Rx frames
+ * - Number of FCS errors
+ * - Number of Tx frames
+ * - WEP ICV error counts
+ * - Number of received beacons
+ * - Number of missed beacons
+ */
+ static ssize_t
+ mwifiex_getlog_read(struct file *file, char __user *ubuf,
+ size_t count, loff_t *ppos)
+ {
+ struct mwifiex_private *priv =
+ (struct mwifiex_private *) file->private_data;
+ unsigned long page = get_zeroed_page(GFP_KERNEL);
+ char *p = (char *) page;
+ ssize_t ret;
+ struct mwifiex_ds_get_stats stats;
+
+ if (!p)
+ return -ENOMEM;
+
+ memset(&stats, 0, sizeof(stats));
+ ret = mwifiex_get_stats_info(priv, &stats);
+ if (ret)
+ goto free_and_exit;
+
+ p += sprintf(p, "\n"
+ "mcasttxframe %u\n"
+ "failed %u\n"
+ "retry %u\n"
+ "multiretry %u\n"
+ "framedup %u\n"
+ "rtssuccess %u\n"
+ "rtsfailure %u\n"
+ "ackfailure %u\n"
+ "rxfrag %u\n"
+ "mcastrxframe %u\n"
+ "fcserror %u\n"
+ "txframe %u\n"
+ "wepicverrcnt-1 %u\n"
+ "wepicverrcnt-2 %u\n"
+ "wepicverrcnt-3 %u\n"
+ "wepicverrcnt-4 %u\n"
+ "bcn_rcv_cnt %u\n"
+ "bcn_miss_cnt %u\n",
+ stats.mcast_tx_frame,
+ stats.failed,
+ stats.retry,
+ stats.multi_retry,
+ stats.frame_dup,
+ stats.rts_success,
+ stats.rts_failure,
+ stats.ack_failure,
+ stats.rx_frag,
+ stats.mcast_rx_frame,
+ stats.fcs_error,
+ stats.tx_frame,
+ stats.wep_icv_error[0],
+ stats.wep_icv_error[1],
+ stats.wep_icv_error[2],
+ stats.wep_icv_error[3],
+ stats.bcn_rcv_cnt,
+ stats.bcn_miss_cnt);
+
+
+ ret = simple_read_from_buffer(ubuf, count, ppos, (char *) page,
+ (unsigned long) p - page);
+
+ free_and_exit:
+ free_page(page);
+ return ret;
+ }
+
+ /* Sysfs histogram file read handler.
+ *
+ * This function is called when the 'histogram' file is opened for reading
+ * It prints the following histogram information -
+ * - Number of histogram samples
+ * - Receive packet number of each rx_rate
+ * - Receive packet number of each snr
+ * - Receive packet number of each nosie_flr
+ * - Receive packet number of each signal streath
+ */
+ static ssize_t
+ mwifiex_histogram_read(struct file *file, char __user *ubuf,
+ size_t count, loff_t *ppos)
+ {
+ struct mwifiex_private *priv =
+ (struct mwifiex_private *)file->private_data;
+ ssize_t ret;
+ struct mwifiex_histogram_data *phist_data;
+ int i, value;
+ unsigned long page = get_zeroed_page(GFP_KERNEL);
+ char *p = (char *)page;
+
+ if (!p)
+ return -ENOMEM;
+
+ if (!priv || !priv->hist_data)
+ return -EFAULT;
+ phist_data = priv->hist_data;
+
+ p += sprintf(p, "\n"
+ "total samples = %d\n",
+ atomic_read(&phist_data->num_samples));
+
+ p += sprintf(p, "rx rates (in Mbps): 0=1M 1=2M");
+ p += sprintf(p, "2=5.5M 3=11M 4=6M 5=9M 6=12M\n");
+ p += sprintf(p, "7=18M 8=24M 9=36M 10=48M 11=54M");
+ p += sprintf(p, "12-27=MCS0-15(BW20) 28-43=MCS0-15(BW40)\n");
+
+ if (ISSUPP_11ACENABLED(priv->adapter->fw_cap_info)) {
+ p += sprintf(p, "44-53=MCS0-9(VHT:BW20)");
+ p += sprintf(p, "54-63=MCS0-9(VHT:BW40)");
+ p += sprintf(p, "64-73=MCS0-9(VHT:BW80)\n\n");
+ } else {
+ p += sprintf(p, "\n");
+ }
+
+ for (i = 0; i < MWIFIEX_MAX_RX_RATES; i++) {
+ value = atomic_read(&phist_data->rx_rate[i]);
+ if (value)
+ p += sprintf(p, "rx_rate[%02d] = %d\n", i, value);
+ }
+
+ if (ISSUPP_11ACENABLED(priv->adapter->fw_cap_info)) {
+ for (i = MWIFIEX_MAX_RX_RATES; i < MWIFIEX_MAX_AC_RX_RATES;
+ i++) {
+ value = atomic_read(&phist_data->rx_rate[i]);
+ if (value)
+ p += sprintf(p, "rx_rate[%02d] = %d\n",
+ i, value);
+ }
+ }
+
+ for (i = 0; i < MWIFIEX_MAX_SNR; i++) {
+ value = atomic_read(&phist_data->snr[i]);
+ if (value)
+ p += sprintf(p, "snr[%02ddB] = %d\n", i, value);
+ }
+ for (i = 0; i < MWIFIEX_MAX_NOISE_FLR; i++) {
+ value = atomic_read(&phist_data->noise_flr[i]);
+ if (value)
+ p += sprintf(p, "noise_flr[-%02ddBm] = %d\n",
+ (int)(i-128), value);
+ }
+ for (i = 0; i < MWIFIEX_MAX_SIG_STRENGTH; i++) {
+ value = atomic_read(&phist_data->sig_str[i]);
+ if (value)
+ p += sprintf(p, "sig_strength[-%02ddBm] = %d\n",
+ i, value);
+ }
+
+ ret = simple_read_from_buffer(ubuf, count, ppos, (char *)page,
+ (unsigned long)p - page);
+
+ return ret;
+ }
+
+ static ssize_t
+ mwifiex_histogram_write(struct file *file, const char __user *ubuf,
+ size_t count, loff_t *ppos)
+ {
+ struct mwifiex_private *priv = (void *)file->private_data;
+
+ if (priv && priv->hist_data)
+ mwifiex_hist_data_reset(priv);
+ return 0;
+ }
+
+ static struct mwifiex_debug_info info;
+
+ /*
+ * Proc debug file read handler.
+ *
+ * This function is called when the 'debug' file is opened for reading
+ * It prints the following log information -
+ * - Interrupt count
+ * - WMM AC VO packets count
+ * - WMM AC VI packets count
+ * - WMM AC BE packets count
+ * - WMM AC BK packets count
+ * - Maximum Tx buffer size
+ * - Tx buffer size
+ * - Current Tx buffer size
+ * - Power Save mode
+ * - Power Save state
+ * - Deep Sleep status
+ * - Device wakeup required status
+ * - Number of wakeup tries
+ * - Host Sleep configured status
+ * - Host Sleep activated status
+ * - Number of Tx timeouts
+ * - Number of command timeouts
+ * - Last timed out command ID
+ * - Last timed out command action
+ * - Last command ID
+ * - Last command action
+ * - Last command index
+ * - Last command response ID
+ * - Last command response index
+ * - Last event
+ * - Last event index
+ * - Number of host to card command failures
+ * - Number of sleep confirm command failures
+ * - Number of host to card data failure
+ * - Number of deauthentication events
+ * - Number of disassociation events
+ * - Number of link lost events
+ * - Number of deauthentication commands
+ * - Number of association success commands
+ * - Number of association failure commands
+ * - Number of commands sent
+ * - Number of data packets sent
+ * - Number of command responses received
+ * - Number of events received
+ * - Tx BA stream table (TID, RA)
+ * - Rx reorder table (TID, TA, Start window, Window size, Buffer)
+ */
+ static ssize_t
+ mwifiex_debug_read(struct file *file, char __user *ubuf,
+ size_t count, loff_t *ppos)
+ {
+ struct mwifiex_private *priv =
+ (struct mwifiex_private *) file->private_data;
+ unsigned long page = get_zeroed_page(GFP_KERNEL);
+ char *p = (char *) page;
+ ssize_t ret;
+
+ if (!p)
+ return -ENOMEM;
+
+ ret = mwifiex_get_debug_info(priv, &info);
+ if (ret)
+ goto free_and_exit;
+
+ p += mwifiex_debug_info_to_buffer(priv, p, &info);
+
+ ret = simple_read_from_buffer(ubuf, count, ppos, (char *) page,
+ (unsigned long) p - page);
+
+ free_and_exit:
+ free_page(page);
+ return ret;
+ }
+
+ static u32 saved_reg_type, saved_reg_offset, saved_reg_value;
+
+ /*
+ * Proc regrdwr file write handler.
+ *
+ * This function is called when the 'regrdwr' file is opened for writing
+ *
+ * This function can be used to write to a register.
+ */
+ static ssize_t
+ mwifiex_regrdwr_write(struct file *file,
+ const char __user *ubuf, size_t count, loff_t *ppos)
+ {
- if (!buf)
- return -ENOMEM;
-
-
- if (copy_from_user(buf, ubuf, buf_size)) {
- ret = -EFAULT;
- goto done;
- }
++ char *buf;
+ int ret;
+ u32 reg_type = 0, reg_offset = 0, reg_value = UINT_MAX;
+
- free_page(addr);
++ buf = memdup_user_nul(ubuf, min(count, (size_t)(PAGE_SIZE - 1)));
++ if (IS_ERR(buf))
++ return PTR_ERR(buf);
+
+ sscanf(buf, "%u %x %x", ®_type, ®_offset, ®_value);
+
+ if (reg_type == 0 || reg_offset == 0) {
+ ret = -EINVAL;
+ goto done;
+ } else {
+ saved_reg_type = reg_type;
+ saved_reg_offset = reg_offset;
+ saved_reg_value = reg_value;
+ ret = count;
+ }
+ done:
- unsigned long addr = get_zeroed_page(GFP_KERNEL);
- char *buf = (void *)addr;
- size_t buf_size = min(count, (size_t)(PAGE_SIZE - 1));
++ kfree(buf);
+ return ret;
+ }
+
+ /*
+ * Proc regrdwr file read handler.
+ *
+ * This function is called when the 'regrdwr' file is opened for reading
+ *
+ * This function can be used to read from a register.
+ */
+ static ssize_t
+ mwifiex_regrdwr_read(struct file *file, char __user *ubuf,
+ size_t count, loff_t *ppos)
+ {
+ struct mwifiex_private *priv =
+ (struct mwifiex_private *) file->private_data;
+ unsigned long addr = get_zeroed_page(GFP_KERNEL);
+ char *buf = (char *) addr;
+ int pos = 0, ret = 0;
+ u32 reg_value;
+
+ if (!buf)
+ return -ENOMEM;
+
+ if (!saved_reg_type) {
+ /* No command has been given */
+ pos += snprintf(buf, PAGE_SIZE, "0");
+ goto done;
+ }
+ /* Set command has been given */
+ if (saved_reg_value != UINT_MAX) {
+ ret = mwifiex_reg_write(priv, saved_reg_type, saved_reg_offset,
+ saved_reg_value);
+
+ pos += snprintf(buf, PAGE_SIZE, "%u 0x%x 0x%x\n",
+ saved_reg_type, saved_reg_offset,
+ saved_reg_value);
+
+ ret = simple_read_from_buffer(ubuf, count, ppos, buf, pos);
+
+ goto done;
+ }
+ /* Get command has been given */
+ ret = mwifiex_reg_read(priv, saved_reg_type,
+ saved_reg_offset, ®_value);
+ if (ret) {
+ ret = -EINVAL;
+ goto done;
+ }
+
+ pos += snprintf(buf, PAGE_SIZE, "%u 0x%x 0x%x\n", saved_reg_type,
+ saved_reg_offset, reg_value);
+
+ ret = simple_read_from_buffer(ubuf, count, ppos, buf, pos);
+
+ done:
+ free_page(addr);
+ return ret;
+ }
+
+ /* Proc debug_mask file read handler.
+ * This function is called when the 'debug_mask' file is opened for reading
+ * This function can be used read driver debugging mask value.
+ */
+ static ssize_t
+ mwifiex_debug_mask_read(struct file *file, char __user *ubuf,
+ size_t count, loff_t *ppos)
+ {
+ struct mwifiex_private *priv =
+ (struct mwifiex_private *)file->private_data;
+ unsigned long page = get_zeroed_page(GFP_KERNEL);
+ char *buf = (char *)page;
+ size_t ret = 0;
+ int pos = 0;
+
+ if (!buf)
+ return -ENOMEM;
+
+ pos += snprintf(buf, PAGE_SIZE, "debug mask=0x%08x\n",
+ priv->adapter->debug_mask);
+ ret = simple_read_from_buffer(ubuf, count, ppos, buf, pos);
+
+ free_page(page);
+ return ret;
+ }
+
+ /* Proc debug_mask file read handler.
+ * This function is called when the 'debug_mask' file is opened for reading
+ * This function can be used read driver debugging mask value.
+ */
+ static ssize_t
+ mwifiex_debug_mask_write(struct file *file, const char __user *ubuf,
+ size_t count, loff_t *ppos)
+ {
+ int ret;
+ unsigned long debug_mask;
+ struct mwifiex_private *priv = (void *)file->private_data;
- if (!buf)
- return -ENOMEM;
-
- if (copy_from_user(buf, ubuf, buf_size)) {
- ret = -EFAULT;
- goto done;
- }
++ char *buf;
+
- free_page(addr);
++ buf = memdup_user_nul(ubuf, min(count, (size_t)(PAGE_SIZE - 1)));
++ if (IS_ERR(buf))
++ return PTR_ERR(buf);
+
+ if (kstrtoul(buf, 0, &debug_mask)) {
+ ret = -EINVAL;
+ goto done;
+ }
+
+ priv->adapter->debug_mask = debug_mask;
+ ret = count;
+ done:
- unsigned long addr = get_zeroed_page(GFP_KERNEL);
- char *buf = (void *)addr;
- size_t buf_size = min(count, (size_t)(PAGE_SIZE - 1));
-
- if (!buf)
- return -ENOMEM;
++ kfree(buf);
+ return ret;
+ }
+
+ /* Proc memrw file write handler.
+ * This function is called when the 'memrw' file is opened for writing
+ * This function can be used to write to a memory location.
+ */
+ static ssize_t
+ mwifiex_memrw_write(struct file *file, const char __user *ubuf, size_t count,
+ loff_t *ppos)
+ {
+ int ret;
+ char cmd;
+ struct mwifiex_ds_mem_rw mem_rw;
+ u16 cmd_action;
+ struct mwifiex_private *priv = (void *)file->private_data;
- if (copy_from_user(buf, ubuf, buf_size)) {
- ret = -EFAULT;
- goto done;
- }
++ char *buf;
+
- free_page(addr);
++ buf = memdup_user_nul(ubuf, min(count, (size_t)(PAGE_SIZE - 1)));
++ if (IS_ERR(buf))
++ return PTR_ERR(buf);
+
+ ret = sscanf(buf, "%c %x %x", &cmd, &mem_rw.addr, &mem_rw.value);
+ if (ret != 3) {
+ ret = -EINVAL;
+ goto done;
+ }
+
+ if ((cmd == 'r') || (cmd == 'R')) {
+ cmd_action = HostCmd_ACT_GEN_GET;
+ mem_rw.value = 0;
+ } else if ((cmd == 'w') || (cmd == 'W')) {
+ cmd_action = HostCmd_ACT_GEN_SET;
+ } else {
+ ret = -EINVAL;
+ goto done;
+ }
+
+ memcpy(&priv->mem_rw, &mem_rw, sizeof(mem_rw));
+ if (mwifiex_send_cmd(priv, HostCmd_CMD_MEM_ACCESS, cmd_action, 0,
+ &mem_rw, true))
+ ret = -1;
+ else
+ ret = count;
+
+ done:
- unsigned long addr = get_zeroed_page(GFP_KERNEL);
- char *buf = (char *) addr;
- size_t buf_size = min_t(size_t, count, PAGE_SIZE - 1);
++ kfree(buf);
+ return ret;
+ }
+
+ /* Proc memrw file read handler.
+ * This function is called when the 'memrw' file is opened for reading
+ * This function can be used to read from a memory location.
+ */
+ static ssize_t
+ mwifiex_memrw_read(struct file *file, char __user *ubuf,
+ size_t count, loff_t *ppos)
+ {
+ struct mwifiex_private *priv = (void *)file->private_data;
+ unsigned long addr = get_zeroed_page(GFP_KERNEL);
+ char *buf = (char *)addr;
+ int ret, pos = 0;
+
+ if (!buf)
+ return -ENOMEM;
+
+ pos += snprintf(buf, PAGE_SIZE, "0x%x 0x%x\n", priv->mem_rw.addr,
+ priv->mem_rw.value);
+ ret = simple_read_from_buffer(ubuf, count, ppos, buf, pos);
+
+ free_page(addr);
+ return ret;
+ }
+
+ static u32 saved_offset = -1, saved_bytes = -1;
+
+ /*
+ * Proc rdeeprom file write handler.
+ *
+ * This function is called when the 'rdeeprom' file is opened for writing
+ *
+ * This function can be used to write to a RDEEPROM location.
+ */
+ static ssize_t
+ mwifiex_rdeeprom_write(struct file *file,
+ const char __user *ubuf, size_t count, loff_t *ppos)
+ {
- if (!buf)
- return -ENOMEM;
-
-
- if (copy_from_user(buf, ubuf, buf_size)) {
- ret = -EFAULT;
- goto done;
- }
++ char *buf;
+ int ret = 0;
+ int offset = -1, bytes = -1;
+
- free_page(addr);
++ buf = memdup_user_nul(ubuf, min(count, (size_t)(PAGE_SIZE - 1)));
++ if (IS_ERR(buf))
++ return PTR_ERR(buf);
+
+ sscanf(buf, "%d %d", &offset, &bytes);
+
+ if (offset == -1 || bytes == -1) {
+ ret = -EINVAL;
+ goto done;
+ } else {
+ saved_offset = offset;
+ saved_bytes = bytes;
+ ret = count;
+ }
+ done:
- unsigned long addr = get_zeroed_page(GFP_KERNEL);
- char *buf = (char *)addr;
- size_t buf_size = min_t(size_t, count, PAGE_SIZE - 1);
++ kfree(buf);
+ return ret;
+ }
+
+ /*
+ * Proc rdeeprom read write handler.
+ *
+ * This function is called when the 'rdeeprom' file is opened for reading
+ *
+ * This function can be used to read from a RDEEPROM location.
+ */
+ static ssize_t
+ mwifiex_rdeeprom_read(struct file *file, char __user *ubuf,
+ size_t count, loff_t *ppos)
+ {
+ struct mwifiex_private *priv =
+ (struct mwifiex_private *) file->private_data;
+ unsigned long addr = get_zeroed_page(GFP_KERNEL);
+ char *buf = (char *) addr;
+ int pos, ret, i;
+ u8 value[MAX_EEPROM_DATA];
+
+ if (!buf)
+ return -ENOMEM;
+
+ if (saved_offset == -1) {
+ /* No command has been given */
+ pos = snprintf(buf, PAGE_SIZE, "0");
+ goto done;
+ }
+
+ /* Get command has been given */
+ ret = mwifiex_eeprom_read(priv, (u16) saved_offset,
+ (u16) saved_bytes, value);
+ if (ret) {
+ ret = -EINVAL;
+ goto out_free;
+ }
+
+ pos = snprintf(buf, PAGE_SIZE, "%d %d ", saved_offset, saved_bytes);
+
+ for (i = 0; i < saved_bytes; i++)
+ pos += scnprintf(buf + pos, PAGE_SIZE - pos, "%d ", value[i]);
+
+ done:
+ ret = simple_read_from_buffer(ubuf, count, ppos, buf, pos);
+ out_free:
+ free_page(addr);
+ return ret;
+ }
+
+ /* Proc hscfg file write handler
+ * This function can be used to configure the host sleep parameters.
+ */
+ static ssize_t
+ mwifiex_hscfg_write(struct file *file, const char __user *ubuf,
+ size_t count, loff_t *ppos)
+ {
+ struct mwifiex_private *priv = (void *)file->private_data;
- if (!buf)
- return -ENOMEM;
-
- if (copy_from_user(buf, ubuf, buf_size)) {
- ret = -EFAULT;
- goto done;
- }
++ char *buf;
+ int ret, arg_num;
+ struct mwifiex_ds_hs_cfg hscfg;
+ int conditions = HS_CFG_COND_DEF;
+ u32 gpio = HS_CFG_GPIO_DEF, gap = HS_CFG_GAP_DEF;
+
- free_page(addr);
++ buf = memdup_user_nul(ubuf, min(count, (size_t)(PAGE_SIZE - 1)));
++ if (IS_ERR(buf))
++ return PTR_ERR(buf);
+
+ arg_num = sscanf(buf, "%d %x %x", &conditions, &gpio, &gap);
+
+ memset(&hscfg, 0, sizeof(struct mwifiex_ds_hs_cfg));
+
+ if (arg_num > 3) {
+ mwifiex_dbg(priv->adapter, ERROR,
+ "Too many arguments\n");
+ ret = -EINVAL;
+ goto done;
+ }
+
+ if (arg_num >= 1 && arg_num < 3)
+ mwifiex_set_hs_params(priv, HostCmd_ACT_GEN_GET,
+ MWIFIEX_SYNC_CMD, &hscfg);
+
+ if (arg_num) {
+ if (conditions == HS_CFG_CANCEL) {
+ mwifiex_cancel_hs(priv, MWIFIEX_ASYNC_CMD);
+ ret = count;
+ goto done;
+ }
+ hscfg.conditions = conditions;
+ }
+ if (arg_num >= 2)
+ hscfg.gpio = gpio;
+ if (arg_num == 3)
+ hscfg.gap = gap;
+
+ hscfg.is_invoke_hostcmd = false;
+ mwifiex_set_hs_params(priv, HostCmd_ACT_GEN_SET,
+ MWIFIEX_SYNC_CMD, &hscfg);
+
+ mwifiex_enable_hs(priv->adapter);
+ priv->adapter->hs_enabling = false;
+ ret = count;
+ done:
++ kfree(buf);
+ return ret;
+ }
+
+ /* Proc hscfg file read handler
+ * This function can be used to read host sleep configuration
+ * parameters from driver.
+ */
+ static ssize_t
+ mwifiex_hscfg_read(struct file *file, char __user *ubuf,
+ size_t count, loff_t *ppos)
+ {
+ struct mwifiex_private *priv = (void *)file->private_data;
+ unsigned long addr = get_zeroed_page(GFP_KERNEL);
+ char *buf = (char *)addr;
+ int pos, ret;
+ struct mwifiex_ds_hs_cfg hscfg;
+
+ if (!buf)
+ return -ENOMEM;
+
+ mwifiex_set_hs_params(priv, HostCmd_ACT_GEN_GET,
+ MWIFIEX_SYNC_CMD, &hscfg);
+
+ pos = snprintf(buf, PAGE_SIZE, "%u 0x%x 0x%x\n", hscfg.conditions,
+ hscfg.gpio, hscfg.gap);
+
+ ret = simple_read_from_buffer(ubuf, count, ppos, buf, pos);
+
+ free_page(addr);
+ return ret;
+ }
+
+ static ssize_t
+ mwifiex_timeshare_coex_read(struct file *file, char __user *ubuf,
+ size_t count, loff_t *ppos)
+ {
+ struct mwifiex_private *priv = file->private_data;
+ char buf[3];
+ bool timeshare_coex;
+ int ret;
+ unsigned int len;
+
+ if (priv->adapter->fw_api_ver != MWIFIEX_FW_V15)
+ return -EOPNOTSUPP;
+
+ ret = mwifiex_send_cmd(priv, HostCmd_CMD_ROBUST_COEX,
+ HostCmd_ACT_GEN_GET, 0, ×hare_coex, true);
+ if (ret)
+ return ret;
+
+ len = sprintf(buf, "%d\n", timeshare_coex);
+ return simple_read_from_buffer(ubuf, count, ppos, buf, len);
+ }
+
+ static ssize_t
+ mwifiex_timeshare_coex_write(struct file *file, const char __user *ubuf,
+ size_t count, loff_t *ppos)
+ {
+ bool timeshare_coex;
+ struct mwifiex_private *priv = file->private_data;
+ char kbuf[16];
+ int ret;
+
+ if (priv->adapter->fw_api_ver != MWIFIEX_FW_V15)
+ return -EOPNOTSUPP;
+
+ memset(kbuf, 0, sizeof(kbuf));
+
+ if (copy_from_user(&kbuf, ubuf, min_t(size_t, sizeof(kbuf) - 1, count)))
+ return -EFAULT;
+
+ if (strtobool(kbuf, ×hare_coex))
+ return -EINVAL;
+
+ ret = mwifiex_send_cmd(priv, HostCmd_CMD_ROBUST_COEX,
+ HostCmd_ACT_GEN_SET, 0, ×hare_coex, true);
+ if (ret)
+ return ret;
+ else
+ return count;
+ }
+
+ static ssize_t
+ mwifiex_reset_write(struct file *file,
+ const char __user *ubuf, size_t count, loff_t *ppos)
+ {
+ struct mwifiex_private *priv = file->private_data;
+ struct mwifiex_adapter *adapter = priv->adapter;
+ char cmd;
+ bool result;
+
+ if (copy_from_user(&cmd, ubuf, sizeof(cmd)))
+ return -EFAULT;
+
+ if (strtobool(&cmd, &result))
+ return -EINVAL;
+
+ if (!result)
+ return -EINVAL;
+
+ if (adapter->if_ops.card_reset) {
+ dev_info(adapter->dev, "Resetting per request\n");
+ adapter->hw_status = MWIFIEX_HW_STATUS_RESET;
+ mwifiex_cancel_all_pending_cmd(adapter);
+ adapter->if_ops.card_reset(adapter);
+ }
+
+ return count;
+ }
+
+ #define MWIFIEX_DFS_ADD_FILE(name) do { \
+ if (!debugfs_create_file(#name, 0644, priv->dfs_dev_dir, \
+ priv, &mwifiex_dfs_##name##_fops)) \
+ return; \
+ } while (0);
+
+ #define MWIFIEX_DFS_FILE_OPS(name) \
+ static const struct file_operations mwifiex_dfs_##name##_fops = { \
+ .read = mwifiex_##name##_read, \
+ .write = mwifiex_##name##_write, \
+ .open = simple_open, \
+ };
+
+ #define MWIFIEX_DFS_FILE_READ_OPS(name) \
+ static const struct file_operations mwifiex_dfs_##name##_fops = { \
+ .read = mwifiex_##name##_read, \
+ .open = simple_open, \
+ };
+
+ #define MWIFIEX_DFS_FILE_WRITE_OPS(name) \
+ static const struct file_operations mwifiex_dfs_##name##_fops = { \
+ .write = mwifiex_##name##_write, \
+ .open = simple_open, \
+ };
+
+
+ MWIFIEX_DFS_FILE_READ_OPS(info);
+ MWIFIEX_DFS_FILE_READ_OPS(debug);
+ MWIFIEX_DFS_FILE_READ_OPS(getlog);
+ MWIFIEX_DFS_FILE_READ_OPS(device_dump);
+ MWIFIEX_DFS_FILE_OPS(regrdwr);
+ MWIFIEX_DFS_FILE_OPS(rdeeprom);
+ MWIFIEX_DFS_FILE_OPS(memrw);
+ MWIFIEX_DFS_FILE_OPS(hscfg);
+ MWIFIEX_DFS_FILE_OPS(histogram);
+ MWIFIEX_DFS_FILE_OPS(debug_mask);
+ MWIFIEX_DFS_FILE_OPS(timeshare_coex);
+ MWIFIEX_DFS_FILE_WRITE_OPS(reset);
+
+ /*
+ * This function creates the debug FS directory structure and the files.
+ */
+ void
+ mwifiex_dev_debugfs_init(struct mwifiex_private *priv)
+ {
+ if (!mwifiex_dfs_dir || !priv)
+ return;
+
+ priv->dfs_dev_dir = debugfs_create_dir(priv->netdev->name,
+ mwifiex_dfs_dir);
+
+ if (!priv->dfs_dev_dir)
+ return;
+
+ MWIFIEX_DFS_ADD_FILE(info);
+ MWIFIEX_DFS_ADD_FILE(debug);
+ MWIFIEX_DFS_ADD_FILE(getlog);
+ MWIFIEX_DFS_ADD_FILE(regrdwr);
+ MWIFIEX_DFS_ADD_FILE(rdeeprom);
+ MWIFIEX_DFS_ADD_FILE(device_dump);
+ MWIFIEX_DFS_ADD_FILE(memrw);
+ MWIFIEX_DFS_ADD_FILE(hscfg);
+ MWIFIEX_DFS_ADD_FILE(histogram);
+ MWIFIEX_DFS_ADD_FILE(debug_mask);
+ MWIFIEX_DFS_ADD_FILE(timeshare_coex);
+ MWIFIEX_DFS_ADD_FILE(reset);
+ }
+
+ /*
+ * This function removes the debug FS directory structure and the files.
+ */
+ void
+ mwifiex_dev_debugfs_remove(struct mwifiex_private *priv)
+ {
+ if (!priv)
+ return;
+
+ debugfs_remove_recursive(priv->dfs_dev_dir);
+ }
+
+ /*
+ * This function creates the top level proc directory.
+ */
+ void
+ mwifiex_debugfs_init(void)
+ {
+ if (!mwifiex_dfs_dir)
+ mwifiex_dfs_dir = debugfs_create_dir("mwifiex", NULL);
+ }
+
+ /*
+ * This function removes the top level proc directory.
+ */
+ void
+ mwifiex_debugfs_remove(void)
+ {
+ if (mwifiex_dfs_dir)
+ debugfs_remove(mwifiex_dfs_dir);
+ }
projects / cascardo / linux.git / commitdiff