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7444a80929
Prior to commit573185cc7e("mmc: core: Invoke sdio func driver's PM callbacks from the sdio bus"), the MMC core used to call into the power management functions of SDIO clients itself and removed the card if the return code was non-zero. IOW, the mmc handled errors gracefully and didn't upchain them to the pm core. Since this change, the mmc core relies on generic power management functions which treat all errors as a reason to cancel the suspend immediately. This causes suspend attempts to fail when the libertas driver is loaded. To fix this, power down the card explicitly in if_sdio_suspend() when we know we're about to lose power and return success. Also set a flag in these cases, and power up the card again in if_sdio_resume(). Fixes:573185cc7e("mmc: core: Invoke sdio func driver's PM callbacks from the sdio bus") Cc: <stable@vger.kernel.org> Signed-off-by: Daniel Mack <daniel@zonque.org> Reviewed-by: Chris Ball <chris@printf.net> Reviewed-by: Ulf Hansson <ulf.hansson@linaro.org> Signed-off-by: Kalle Valo <kvalo@codeaurora.org>
215 lines
5.2 KiB
C
215 lines
5.2 KiB
C
/* SPDX-License-Identifier: GPL-2.0 */
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/*
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* This file contains definitions and data structures specific
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* to Marvell 802.11 NIC. It contains the Device Information
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* structure struct lbs_private..
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*/
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#ifndef _LBS_DEV_H_
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#define _LBS_DEV_H_
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#include "defs.h"
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#include "decl.h"
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#include "host.h"
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#include <linux/kfifo.h>
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/* sleep_params */
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struct sleep_params {
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uint16_t sp_error;
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uint16_t sp_offset;
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uint16_t sp_stabletime;
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uint8_t sp_calcontrol;
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uint8_t sp_extsleepclk;
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uint16_t sp_reserved;
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};
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/* Mesh statistics */
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struct lbs_mesh_stats {
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u32 fwd_bcast_cnt; /* Fwd: Broadcast counter */
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u32 fwd_unicast_cnt; /* Fwd: Unicast counter */
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u32 fwd_drop_ttl; /* Fwd: TTL zero */
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u32 fwd_drop_rbt; /* Fwd: Recently Broadcasted */
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u32 fwd_drop_noroute; /* Fwd: No route to Destination */
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u32 fwd_drop_nobuf; /* Fwd: Run out of internal buffers */
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u32 drop_blind; /* Rx: Dropped by blinding table */
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u32 tx_failed_cnt; /* Tx: Failed transmissions */
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};
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/* Private structure for the MV device */
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struct lbs_private {
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/* Basic networking */
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struct net_device *dev;
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u32 connect_status;
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struct work_struct mcast_work;
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u32 nr_of_multicastmacaddr;
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u8 multicastlist[MRVDRV_MAX_MULTICAST_LIST_SIZE][ETH_ALEN];
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/* CFG80211 */
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struct wireless_dev *wdev;
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bool wiphy_registered;
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struct cfg80211_scan_request *scan_req;
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u8 assoc_bss[ETH_ALEN];
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u8 country_code[IEEE80211_COUNTRY_STRING_LEN];
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u8 disassoc_reason;
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/* Mesh */
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struct net_device *mesh_dev; /* Virtual device */
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#ifdef CONFIG_LIBERTAS_MESH
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struct lbs_mesh_stats mstats;
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uint16_t mesh_tlv;
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u8 mesh_ssid[IEEE80211_MAX_SSID_LEN + 1];
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u8 mesh_ssid_len;
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u8 mesh_channel;
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#endif
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/* Debugfs */
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struct dentry *debugfs_dir;
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struct dentry *debugfs_debug;
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struct dentry *debugfs_files[6];
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struct dentry *events_dir;
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struct dentry *debugfs_events_files[6];
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struct dentry *regs_dir;
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struct dentry *debugfs_regs_files[6];
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/* Hardware debugging */
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u32 mac_offset;
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u32 bbp_offset;
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u32 rf_offset;
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/* Power management */
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u16 psmode;
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u32 psstate;
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u8 needtowakeup;
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/* Deep sleep */
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int is_deep_sleep;
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int deep_sleep_required;
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int is_auto_deep_sleep_enabled;
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int wakeup_dev_required;
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int is_activity_detected;
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int auto_deep_sleep_timeout; /* in ms */
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wait_queue_head_t ds_awake_q;
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struct timer_list auto_deepsleep_timer;
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/* Host sleep*/
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int is_host_sleep_configured;
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int is_host_sleep_activated;
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wait_queue_head_t host_sleep_q;
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/* Hardware access */
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void *card;
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bool iface_running;
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u8 is_polling; /* host has to poll the card irq */
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u8 fw_ready;
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u8 surpriseremoved;
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u8 setup_fw_on_resume;
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u8 power_up_on_resume;
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int (*hw_host_to_card) (struct lbs_private *priv, u8 type, u8 *payload, u16 nb);
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void (*reset_card) (struct lbs_private *priv);
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int (*power_save) (struct lbs_private *priv);
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int (*power_restore) (struct lbs_private *priv);
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int (*enter_deep_sleep) (struct lbs_private *priv);
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int (*exit_deep_sleep) (struct lbs_private *priv);
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int (*reset_deep_sleep_wakeup) (struct lbs_private *priv);
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/* Adapter info (from EEPROM) */
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u32 fwrelease;
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u32 fwcapinfo;
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u16 regioncode;
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u8 current_addr[ETH_ALEN];
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u8 copied_hwaddr;
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/* Command download */
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u8 dnld_sent;
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/* bit0 1/0=data_sent/data_tx_done,
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bit1 1/0=cmd_sent/cmd_tx_done,
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all other bits reserved 0 */
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u16 seqnum;
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struct cmd_ctrl_node *cmd_array;
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struct cmd_ctrl_node *cur_cmd;
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struct list_head cmdfreeq; /* free command buffers */
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struct list_head cmdpendingq; /* pending command buffers */
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struct timer_list command_timer;
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int cmd_timed_out;
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/* Command responses sent from the hardware to the driver */
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u8 resp_idx;
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u8 resp_buf[2][LBS_UPLD_SIZE];
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u32 resp_len[2];
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/* Events sent from hardware to driver */
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struct kfifo event_fifo;
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/* thread to service interrupts */
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struct task_struct *main_thread;
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wait_queue_head_t waitq;
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struct workqueue_struct *work_thread;
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/* Encryption stuff */
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u8 authtype_auto;
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u8 wep_tx_key;
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u8 wep_key[4][WLAN_KEY_LEN_WEP104];
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u8 wep_key_len[4];
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/* Wake On LAN */
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uint32_t wol_criteria;
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uint8_t wol_gpio;
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uint8_t wol_gap;
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bool ehs_remove_supported;
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/* Transmitting */
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int tx_pending_len; /* -1 while building packet */
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u8 tx_pending_buf[LBS_UPLD_SIZE];
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/* protected by hard_start_xmit serialization */
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u8 txretrycount;
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struct sk_buff *currenttxskb;
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struct timer_list tx_lockup_timer;
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/* Locks */
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struct mutex lock;
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spinlock_t driver_lock;
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/* NIC/link operation characteristics */
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u16 mac_control;
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u8 radio_on;
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u8 cur_rate;
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u8 channel;
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s16 txpower_cur;
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s16 txpower_min;
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s16 txpower_max;
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/* Scanning */
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struct delayed_work scan_work;
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int scan_channel;
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/* Queue of things waiting for scan completion */
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wait_queue_head_t scan_q;
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/* Whether the scan was initiated internally and not by cfg80211 */
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bool internal_scan;
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/* Firmware load */
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u32 fw_model;
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wait_queue_head_t fw_waitq;
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struct device *fw_device;
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const struct firmware *helper_fw;
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const struct lbs_fw_table *fw_table;
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const struct lbs_fw_table *fw_iter;
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lbs_fw_cb fw_callback;
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};
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extern struct cmd_confirm_sleep confirm_sleep;
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/* Check if there is an interface active. */
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static inline int lbs_iface_active(struct lbs_private *priv)
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{
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int r;
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r = netif_running(priv->dev);
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if (priv->mesh_dev)
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r |= netif_running(priv->mesh_dev);
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return r;
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}
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#endif
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