From 03dd4cb26d967f9588437b0fc9cc0e8353322bb7 Mon Sep 17 00:00:00 2001 From: André Fabian Silva Delgado Date: Fri, 25 Mar 2016 03:53:42 -0300 Subject: Linux-libre 4.5-gnu --- drivers/net/wireless/libertas/debugfs.c | 989 -------------------------------- 1 file changed, 989 deletions(-) delete mode 100644 drivers/net/wireless/libertas/debugfs.c (limited to 'drivers/net/wireless/libertas/debugfs.c') diff --git a/drivers/net/wireless/libertas/debugfs.c b/drivers/net/wireless/libertas/debugfs.c deleted file mode 100644 index 26cbf1dcc..000000000 --- a/drivers/net/wireless/libertas/debugfs.c +++ /dev/null @@ -1,989 +0,0 @@ -#include -#include -#include -#include -#include -#include -#include -#include - -#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; - ssize_t buf_size, ret; - struct sleep_params sp; - int p1, p2, p3, p4, p5, p6; - unsigned long addr = get_zeroed_page(GFP_KERNEL); - char *buf = (char *)addr; - if (!buf) - return -ENOMEM; - - buf_size = min(count, len - 1); - if (copy_from_user(buf, user_buf, buf_size)) { - ret = -EFAULT; - goto out_unlock; - } - 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: - free_page(addr); - 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; - ssize_t buf_size, ret; - int host_sleep; - unsigned long addr = get_zeroed_page(GFP_KERNEL); - char *buf = (char *)addr; - if (!buf) - return -ENOMEM; - - buf_size = min(count, len - 1); - if (copy_from_user(buf, user_buf, buf_size)) { - ret = -EFAULT; - goto out_unlock; - } - 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: - free_page(addr); - 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; - ssize_t buf_size; - int value, freq, new_mask; - uint16_t curr_mask; - char *buf; - int ret; - - buf = (char *)get_zeroed_page(GFP_KERNEL); - if (!buf) - return -ENOMEM; - - buf_size = min(count, len - 1); - if (copy_from_user(buf, userbuf, buf_size)) { - ret = -EFAULT; - goto out_page; - } - 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: - free_page((unsigned long)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; - ssize_t res, buf_size; - unsigned long addr = get_zeroed_page(GFP_KERNEL); - char *buf = (char *)addr; - if (!buf) - return -ENOMEM; - - buf_size = min(count, len - 1); - if (copy_from_user(buf, userbuf, buf_size)) { - res = -EFAULT; - goto out_unlock; - } - priv->mac_offset = simple_strtoul(buf, NULL, 16); - res = count; -out_unlock: - free_page(addr); - return res; -} - -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; - ssize_t res, buf_size; - u32 offset, value; - unsigned long addr = get_zeroed_page(GFP_KERNEL); - char *buf = (char *)addr; - if (!buf) - return -ENOMEM; - - buf_size = min(count, len - 1); - if (copy_from_user(buf, userbuf, buf_size)) { - res = -EFAULT; - goto out_unlock; - } - 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: - free_page(addr); - 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; - ssize_t res, buf_size; - unsigned long addr = get_zeroed_page(GFP_KERNEL); - char *buf = (char *)addr; - if (!buf) - return -ENOMEM; - - buf_size = min(count, len - 1); - if (copy_from_user(buf, userbuf, buf_size)) { - res = -EFAULT; - goto out_unlock; - } - priv->bbp_offset = simple_strtoul(buf, NULL, 16); - res = count; -out_unlock: - free_page(addr); - return res; -} - -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; - ssize_t res, buf_size; - u32 offset, value; - unsigned long addr = get_zeroed_page(GFP_KERNEL); - char *buf = (char *)addr; - if (!buf) - return -ENOMEM; - - buf_size = min(count, len - 1); - if (copy_from_user(buf, userbuf, buf_size)) { - res = -EFAULT; - goto out_unlock; - } - 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: - free_page(addr); - 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; - ssize_t res, buf_size; - unsigned long addr = get_zeroed_page(GFP_KERNEL); - char *buf = (char *)addr; - if (!buf) - return -ENOMEM; - - buf_size = min(count, len - 1); - if (copy_from_user(buf, userbuf, buf_size)) { - res = -EFAULT; - goto out_unlock; - } - priv->rf_offset = simple_strtoul(buf, NULL, 16); - res = count; -out_unlock: - free_page(addr); - return res; -} - -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; - ssize_t res, buf_size; - u32 offset, value; - unsigned long addr = get_zeroed_page(GFP_KERNEL); - char *buf = (char *)addr; - if (!buf) - return -ENOMEM; - - buf_size = min(count, len - 1); - if (copy_from_user(buf, userbuf, buf_size)) { - res = -EFAULT; - goto out_unlock; - } - 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: - free_page(addr); - 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; idebugfs_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; idebugfs_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; idebugfs_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; idebugfs_regs_files[i]); - - debugfs_remove(priv->regs_dir); - - for(i=0; idebugfs_events_files[i]); - - debugfs_remove(priv->events_dir); -#ifdef PROC_DEBUG - debugfs_remove(priv->debugfs_debug); -#endif - for(i=0; idebugfs_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 = 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'; - - 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 -- cgit v1.2.3-54-g00ecf