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https://github.com/AuxXxilium/linux_dsm_epyc7002.git
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eae74e6545
AP and STA firmware images provide a different signature in the HIU_INT_CODE register after loading. Record which of the signatures we saw, as it determines which command sequences to use later on. Signed-off-by: Lennert Buytenhek <buytenh@marvell.com> Signed-off-by: John W. Linville <linville@tuxdriver.com>
3294 lines
77 KiB
C
3294 lines
77 KiB
C
/*
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* drivers/net/wireless/mwl8k.c
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* Driver for Marvell TOPDOG 802.11 Wireless cards
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*
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* Copyright (C) 2008-2009 Marvell Semiconductor Inc.
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*
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* This file is licensed under the terms of the GNU General Public
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* License version 2. This program is licensed "as is" without any
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* warranty of any kind, whether express or implied.
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*/
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#include <linux/init.h>
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#include <linux/module.h>
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#include <linux/kernel.h>
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#include <linux/sched.h>
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#include <linux/spinlock.h>
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#include <linux/list.h>
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#include <linux/pci.h>
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#include <linux/delay.h>
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#include <linux/completion.h>
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#include <linux/etherdevice.h>
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#include <net/mac80211.h>
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#include <linux/moduleparam.h>
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#include <linux/firmware.h>
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#include <linux/workqueue.h>
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#define MWL8K_DESC "Marvell TOPDOG(R) 802.11 Wireless Network Driver"
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#define MWL8K_NAME KBUILD_MODNAME
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#define MWL8K_VERSION "0.10"
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/* Register definitions */
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#define MWL8K_HIU_GEN_PTR 0x00000c10
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#define MWL8K_MODE_STA 0x0000005a
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#define MWL8K_MODE_AP 0x000000a5
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#define MWL8K_HIU_INT_CODE 0x00000c14
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#define MWL8K_FWSTA_READY 0xf0f1f2f4
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#define MWL8K_FWAP_READY 0xf1f2f4a5
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#define MWL8K_INT_CODE_CMD_FINISHED 0x00000005
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#define MWL8K_HIU_SCRATCH 0x00000c40
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/* Host->device communications */
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#define MWL8K_HIU_H2A_INTERRUPT_EVENTS 0x00000c18
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#define MWL8K_HIU_H2A_INTERRUPT_STATUS 0x00000c1c
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#define MWL8K_HIU_H2A_INTERRUPT_MASK 0x00000c20
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#define MWL8K_HIU_H2A_INTERRUPT_CLEAR_SEL 0x00000c24
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#define MWL8K_HIU_H2A_INTERRUPT_STATUS_MASK 0x00000c28
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#define MWL8K_H2A_INT_DUMMY (1 << 20)
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#define MWL8K_H2A_INT_RESET (1 << 15)
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#define MWL8K_H2A_INT_DOORBELL (1 << 1)
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#define MWL8K_H2A_INT_PPA_READY (1 << 0)
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/* Device->host communications */
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#define MWL8K_HIU_A2H_INTERRUPT_EVENTS 0x00000c2c
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#define MWL8K_HIU_A2H_INTERRUPT_STATUS 0x00000c30
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#define MWL8K_HIU_A2H_INTERRUPT_MASK 0x00000c34
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#define MWL8K_HIU_A2H_INTERRUPT_CLEAR_SEL 0x00000c38
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#define MWL8K_HIU_A2H_INTERRUPT_STATUS_MASK 0x00000c3c
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#define MWL8K_A2H_INT_DUMMY (1 << 20)
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#define MWL8K_A2H_INT_CHNL_SWITCHED (1 << 11)
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#define MWL8K_A2H_INT_QUEUE_EMPTY (1 << 10)
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#define MWL8K_A2H_INT_RADAR_DETECT (1 << 7)
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#define MWL8K_A2H_INT_RADIO_ON (1 << 6)
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#define MWL8K_A2H_INT_RADIO_OFF (1 << 5)
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#define MWL8K_A2H_INT_MAC_EVENT (1 << 3)
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#define MWL8K_A2H_INT_OPC_DONE (1 << 2)
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#define MWL8K_A2H_INT_RX_READY (1 << 1)
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#define MWL8K_A2H_INT_TX_DONE (1 << 0)
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#define MWL8K_A2H_EVENTS (MWL8K_A2H_INT_DUMMY | \
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MWL8K_A2H_INT_CHNL_SWITCHED | \
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MWL8K_A2H_INT_QUEUE_EMPTY | \
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MWL8K_A2H_INT_RADAR_DETECT | \
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MWL8K_A2H_INT_RADIO_ON | \
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MWL8K_A2H_INT_RADIO_OFF | \
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MWL8K_A2H_INT_MAC_EVENT | \
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MWL8K_A2H_INT_OPC_DONE | \
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MWL8K_A2H_INT_RX_READY | \
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MWL8K_A2H_INT_TX_DONE)
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#define MWL8K_RX_QUEUES 1
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#define MWL8K_TX_QUEUES 4
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struct mwl8k_device_info {
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char *part_name;
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char *helper_image;
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char *fw_image;
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};
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struct mwl8k_rx_queue {
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int rxd_count;
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/* hw receives here */
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int head;
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/* refill descs here */
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int tail;
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struct mwl8k_rx_desc *rxd;
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dma_addr_t rxd_dma;
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struct sk_buff **skb;
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};
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struct mwl8k_tx_queue {
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/* hw transmits here */
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int head;
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/* sw appends here */
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int tail;
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struct ieee80211_tx_queue_stats stats;
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struct mwl8k_tx_desc *txd;
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dma_addr_t txd_dma;
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struct sk_buff **skb;
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};
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/* Pointers to the firmware data and meta information about it. */
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struct mwl8k_firmware {
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/* Boot helper code */
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struct firmware *helper;
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/* Microcode */
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struct firmware *ucode;
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};
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struct mwl8k_priv {
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void __iomem *sram;
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void __iomem *regs;
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struct ieee80211_hw *hw;
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struct pci_dev *pdev;
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struct mwl8k_device_info *device_info;
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bool ap_fw;
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/* firmware files and meta data */
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struct mwl8k_firmware fw;
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/* firmware access */
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struct mutex fw_mutex;
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struct task_struct *fw_mutex_owner;
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int fw_mutex_depth;
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struct completion *hostcmd_wait;
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/* lock held over TX and TX reap */
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spinlock_t tx_lock;
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/* TX quiesce completion, protected by fw_mutex and tx_lock */
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struct completion *tx_wait;
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struct ieee80211_vif *vif;
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struct ieee80211_channel *current_channel;
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/* power management status cookie from firmware */
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u32 *cookie;
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dma_addr_t cookie_dma;
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u16 num_mcaddrs;
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u8 hw_rev;
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u32 fw_rev;
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/*
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* Running count of TX packets in flight, to avoid
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* iterating over the transmit rings each time.
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*/
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int pending_tx_pkts;
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struct mwl8k_rx_queue rxq[MWL8K_RX_QUEUES];
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struct mwl8k_tx_queue txq[MWL8K_TX_QUEUES];
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/* PHY parameters */
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struct ieee80211_supported_band band;
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struct ieee80211_channel channels[14];
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struct ieee80211_rate rates[13];
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bool radio_on;
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bool radio_short_preamble;
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bool sniffer_enabled;
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bool wmm_enabled;
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/* XXX need to convert this to handle multiple interfaces */
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bool capture_beacon;
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u8 capture_bssid[ETH_ALEN];
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struct sk_buff *beacon_skb;
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/*
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* This FJ worker has to be global as it is scheduled from the
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* RX handler. At this point we don't know which interface it
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* belongs to until the list of bssids waiting to complete join
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* is checked.
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*/
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struct work_struct finalize_join_worker;
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/* Tasklet to reclaim TX descriptors and buffers after tx */
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struct tasklet_struct tx_reclaim_task;
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};
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/* Per interface specific private data */
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struct mwl8k_vif {
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/* backpointer to parent config block */
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struct mwl8k_priv *priv;
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/* BSS config of AP or IBSS from mac80211*/
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struct ieee80211_bss_conf bss_info;
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/* BSSID of AP or IBSS */
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u8 bssid[ETH_ALEN];
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u8 mac_addr[ETH_ALEN];
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/*
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* Subset of supported legacy rates.
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* Intersection of AP and STA supported rates.
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*/
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struct ieee80211_rate legacy_rates[13];
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/* number of supported legacy rates */
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u8 legacy_nrates;
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/* Index into station database.Returned by update_sta_db call */
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u8 peer_id;
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/* Non AMPDU sequence number assigned by driver */
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u16 seqno;
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};
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#define MWL8K_VIF(_vif) ((struct mwl8k_vif *)&((_vif)->drv_priv))
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static const struct ieee80211_channel mwl8k_channels[] = {
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{ .center_freq = 2412, .hw_value = 1, },
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{ .center_freq = 2417, .hw_value = 2, },
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{ .center_freq = 2422, .hw_value = 3, },
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{ .center_freq = 2427, .hw_value = 4, },
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{ .center_freq = 2432, .hw_value = 5, },
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{ .center_freq = 2437, .hw_value = 6, },
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{ .center_freq = 2442, .hw_value = 7, },
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{ .center_freq = 2447, .hw_value = 8, },
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{ .center_freq = 2452, .hw_value = 9, },
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{ .center_freq = 2457, .hw_value = 10, },
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{ .center_freq = 2462, .hw_value = 11, },
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};
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static const struct ieee80211_rate mwl8k_rates[] = {
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{ .bitrate = 10, .hw_value = 2, },
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{ .bitrate = 20, .hw_value = 4, },
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{ .bitrate = 55, .hw_value = 11, },
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{ .bitrate = 110, .hw_value = 22, },
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{ .bitrate = 220, .hw_value = 44, },
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{ .bitrate = 60, .hw_value = 12, },
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{ .bitrate = 90, .hw_value = 18, },
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{ .bitrate = 120, .hw_value = 24, },
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{ .bitrate = 180, .hw_value = 36, },
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{ .bitrate = 240, .hw_value = 48, },
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{ .bitrate = 360, .hw_value = 72, },
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{ .bitrate = 480, .hw_value = 96, },
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{ .bitrate = 540, .hw_value = 108, },
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};
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/* Set or get info from Firmware */
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#define MWL8K_CMD_SET 0x0001
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#define MWL8K_CMD_GET 0x0000
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/* Firmware command codes */
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#define MWL8K_CMD_CODE_DNLD 0x0001
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#define MWL8K_CMD_GET_HW_SPEC 0x0003
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#define MWL8K_CMD_MAC_MULTICAST_ADR 0x0010
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#define MWL8K_CMD_GET_STAT 0x0014
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#define MWL8K_CMD_RADIO_CONTROL 0x001c
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#define MWL8K_CMD_RF_TX_POWER 0x001e
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#define MWL8K_CMD_SET_PRE_SCAN 0x0107
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#define MWL8K_CMD_SET_POST_SCAN 0x0108
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#define MWL8K_CMD_SET_RF_CHANNEL 0x010a
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#define MWL8K_CMD_SET_AID 0x010d
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#define MWL8K_CMD_SET_RATE 0x0110
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#define MWL8K_CMD_SET_FINALIZE_JOIN 0x0111
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#define MWL8K_CMD_RTS_THRESHOLD 0x0113
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#define MWL8K_CMD_SET_SLOT 0x0114
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#define MWL8K_CMD_SET_EDCA_PARAMS 0x0115
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#define MWL8K_CMD_SET_WMM_MODE 0x0123
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#define MWL8K_CMD_MIMO_CONFIG 0x0125
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#define MWL8K_CMD_USE_FIXED_RATE 0x0126
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#define MWL8K_CMD_ENABLE_SNIFFER 0x0150
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#define MWL8K_CMD_SET_MAC_ADDR 0x0202
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#define MWL8K_CMD_SET_RATEADAPT_MODE 0x0203
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#define MWL8K_CMD_UPDATE_STADB 0x1123
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static const char *mwl8k_cmd_name(u16 cmd, char *buf, int bufsize)
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{
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#define MWL8K_CMDNAME(x) case MWL8K_CMD_##x: do {\
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snprintf(buf, bufsize, "%s", #x);\
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return buf;\
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} while (0)
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switch (cmd & ~0x8000) {
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MWL8K_CMDNAME(CODE_DNLD);
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MWL8K_CMDNAME(GET_HW_SPEC);
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MWL8K_CMDNAME(MAC_MULTICAST_ADR);
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MWL8K_CMDNAME(GET_STAT);
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MWL8K_CMDNAME(RADIO_CONTROL);
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MWL8K_CMDNAME(RF_TX_POWER);
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MWL8K_CMDNAME(SET_PRE_SCAN);
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MWL8K_CMDNAME(SET_POST_SCAN);
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MWL8K_CMDNAME(SET_RF_CHANNEL);
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MWL8K_CMDNAME(SET_AID);
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MWL8K_CMDNAME(SET_RATE);
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MWL8K_CMDNAME(SET_FINALIZE_JOIN);
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MWL8K_CMDNAME(RTS_THRESHOLD);
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MWL8K_CMDNAME(SET_SLOT);
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MWL8K_CMDNAME(SET_EDCA_PARAMS);
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MWL8K_CMDNAME(SET_WMM_MODE);
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MWL8K_CMDNAME(MIMO_CONFIG);
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MWL8K_CMDNAME(USE_FIXED_RATE);
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MWL8K_CMDNAME(ENABLE_SNIFFER);
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MWL8K_CMDNAME(SET_MAC_ADDR);
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MWL8K_CMDNAME(SET_RATEADAPT_MODE);
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MWL8K_CMDNAME(UPDATE_STADB);
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default:
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snprintf(buf, bufsize, "0x%x", cmd);
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}
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#undef MWL8K_CMDNAME
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return buf;
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}
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/* Hardware and firmware reset */
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static void mwl8k_hw_reset(struct mwl8k_priv *priv)
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{
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iowrite32(MWL8K_H2A_INT_RESET,
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priv->regs + MWL8K_HIU_H2A_INTERRUPT_EVENTS);
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iowrite32(MWL8K_H2A_INT_RESET,
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priv->regs + MWL8K_HIU_H2A_INTERRUPT_EVENTS);
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msleep(20);
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}
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/* Release fw image */
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static void mwl8k_release_fw(struct firmware **fw)
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{
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if (*fw == NULL)
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return;
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release_firmware(*fw);
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*fw = NULL;
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}
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static void mwl8k_release_firmware(struct mwl8k_priv *priv)
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{
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mwl8k_release_fw(&priv->fw.ucode);
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mwl8k_release_fw(&priv->fw.helper);
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}
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/* Request fw image */
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static int mwl8k_request_fw(struct mwl8k_priv *priv,
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const char *fname, struct firmware **fw)
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{
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/* release current image */
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if (*fw != NULL)
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mwl8k_release_fw(fw);
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return request_firmware((const struct firmware **)fw,
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fname, &priv->pdev->dev);
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}
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static int mwl8k_request_firmware(struct mwl8k_priv *priv)
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{
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struct mwl8k_device_info *di = priv->device_info;
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int rc;
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if (di->helper_image != NULL) {
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rc = mwl8k_request_fw(priv, di->helper_image, &priv->fw.helper);
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if (rc) {
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printk(KERN_ERR "%s: Error requesting helper "
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"firmware file %s\n", pci_name(priv->pdev),
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di->helper_image);
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return rc;
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}
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}
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rc = mwl8k_request_fw(priv, di->fw_image, &priv->fw.ucode);
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if (rc) {
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printk(KERN_ERR "%s: Error requesting firmware file %s\n",
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pci_name(priv->pdev), di->fw_image);
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mwl8k_release_fw(&priv->fw.helper);
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return rc;
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}
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return 0;
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}
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struct mwl8k_cmd_pkt {
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__le16 code;
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__le16 length;
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__le16 seq_num;
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__le16 result;
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char payload[0];
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} __attribute__((packed));
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/*
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* Firmware loading.
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*/
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static int
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mwl8k_send_fw_load_cmd(struct mwl8k_priv *priv, void *data, int length)
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{
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void __iomem *regs = priv->regs;
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dma_addr_t dma_addr;
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int loops;
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dma_addr = pci_map_single(priv->pdev, data, length, PCI_DMA_TODEVICE);
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if (pci_dma_mapping_error(priv->pdev, dma_addr))
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return -ENOMEM;
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iowrite32(dma_addr, regs + MWL8K_HIU_GEN_PTR);
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iowrite32(0, regs + MWL8K_HIU_INT_CODE);
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iowrite32(MWL8K_H2A_INT_DOORBELL,
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regs + MWL8K_HIU_H2A_INTERRUPT_EVENTS);
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iowrite32(MWL8K_H2A_INT_DUMMY,
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regs + MWL8K_HIU_H2A_INTERRUPT_EVENTS);
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loops = 1000;
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do {
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u32 int_code;
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int_code = ioread32(regs + MWL8K_HIU_INT_CODE);
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if (int_code == MWL8K_INT_CODE_CMD_FINISHED) {
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iowrite32(0, regs + MWL8K_HIU_INT_CODE);
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break;
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}
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cond_resched();
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udelay(1);
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} while (--loops);
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pci_unmap_single(priv->pdev, dma_addr, length, PCI_DMA_TODEVICE);
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return loops ? 0 : -ETIMEDOUT;
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}
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static int mwl8k_load_fw_image(struct mwl8k_priv *priv,
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const u8 *data, size_t length)
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{
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struct mwl8k_cmd_pkt *cmd;
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int done;
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int rc = 0;
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cmd = kmalloc(sizeof(*cmd) + 256, GFP_KERNEL);
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if (cmd == NULL)
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return -ENOMEM;
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cmd->code = cpu_to_le16(MWL8K_CMD_CODE_DNLD);
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cmd->seq_num = 0;
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cmd->result = 0;
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done = 0;
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while (length) {
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int block_size = length > 256 ? 256 : length;
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memcpy(cmd->payload, data + done, block_size);
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cmd->length = cpu_to_le16(block_size);
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|
|
rc = mwl8k_send_fw_load_cmd(priv, cmd,
|
|
sizeof(*cmd) + block_size);
|
|
if (rc)
|
|
break;
|
|
|
|
done += block_size;
|
|
length -= block_size;
|
|
}
|
|
|
|
if (!rc) {
|
|
cmd->length = 0;
|
|
rc = mwl8k_send_fw_load_cmd(priv, cmd, sizeof(*cmd));
|
|
}
|
|
|
|
kfree(cmd);
|
|
|
|
return rc;
|
|
}
|
|
|
|
static int mwl8k_feed_fw_image(struct mwl8k_priv *priv,
|
|
const u8 *data, size_t length)
|
|
{
|
|
unsigned char *buffer;
|
|
int may_continue, rc = 0;
|
|
u32 done, prev_block_size;
|
|
|
|
buffer = kmalloc(1024, GFP_KERNEL);
|
|
if (buffer == NULL)
|
|
return -ENOMEM;
|
|
|
|
done = 0;
|
|
prev_block_size = 0;
|
|
may_continue = 1000;
|
|
while (may_continue > 0) {
|
|
u32 block_size;
|
|
|
|
block_size = ioread32(priv->regs + MWL8K_HIU_SCRATCH);
|
|
if (block_size & 1) {
|
|
block_size &= ~1;
|
|
may_continue--;
|
|
} else {
|
|
done += prev_block_size;
|
|
length -= prev_block_size;
|
|
}
|
|
|
|
if (block_size > 1024 || block_size > length) {
|
|
rc = -EOVERFLOW;
|
|
break;
|
|
}
|
|
|
|
if (length == 0) {
|
|
rc = 0;
|
|
break;
|
|
}
|
|
|
|
if (block_size == 0) {
|
|
rc = -EPROTO;
|
|
may_continue--;
|
|
udelay(1);
|
|
continue;
|
|
}
|
|
|
|
prev_block_size = block_size;
|
|
memcpy(buffer, data + done, block_size);
|
|
|
|
rc = mwl8k_send_fw_load_cmd(priv, buffer, block_size);
|
|
if (rc)
|
|
break;
|
|
}
|
|
|
|
if (!rc && length != 0)
|
|
rc = -EREMOTEIO;
|
|
|
|
kfree(buffer);
|
|
|
|
return rc;
|
|
}
|
|
|
|
static int mwl8k_load_firmware(struct ieee80211_hw *hw)
|
|
{
|
|
struct mwl8k_priv *priv = hw->priv;
|
|
struct firmware *fw = priv->fw.ucode;
|
|
struct mwl8k_device_info *di = priv->device_info;
|
|
int rc;
|
|
int loops;
|
|
|
|
if (!memcmp(fw->data, "\x01\x00\x00\x00", 4)) {
|
|
struct firmware *helper = priv->fw.helper;
|
|
|
|
if (helper == NULL) {
|
|
printk(KERN_ERR "%s: helper image needed but none "
|
|
"given\n", pci_name(priv->pdev));
|
|
return -EINVAL;
|
|
}
|
|
|
|
rc = mwl8k_load_fw_image(priv, helper->data, helper->size);
|
|
if (rc) {
|
|
printk(KERN_ERR "%s: unable to load firmware "
|
|
"helper image\n", pci_name(priv->pdev));
|
|
return rc;
|
|
}
|
|
msleep(1);
|
|
|
|
rc = mwl8k_feed_fw_image(priv, fw->data, fw->size);
|
|
} else {
|
|
rc = mwl8k_load_fw_image(priv, fw->data, fw->size);
|
|
}
|
|
|
|
if (rc) {
|
|
printk(KERN_ERR "%s: unable to load firmware image\n",
|
|
pci_name(priv->pdev));
|
|
return rc;
|
|
}
|
|
|
|
if (di->modes & BIT(NL80211_IFTYPE_AP))
|
|
iowrite32(MWL8K_MODE_AP, priv->regs + MWL8K_HIU_GEN_PTR);
|
|
else
|
|
iowrite32(MWL8K_MODE_STA, priv->regs + MWL8K_HIU_GEN_PTR);
|
|
msleep(1);
|
|
|
|
loops = 200000;
|
|
do {
|
|
u32 ready_code;
|
|
|
|
ready_code = ioread32(priv->regs + MWL8K_HIU_INT_CODE);
|
|
if (ready_code == MWL8K_FWAP_READY) {
|
|
priv->ap_fw = 1;
|
|
break;
|
|
} else if (ready_code == MWL8K_FWSTA_READY) {
|
|
priv->ap_fw = 0;
|
|
break;
|
|
}
|
|
|
|
cond_resched();
|
|
udelay(1);
|
|
} while (--loops);
|
|
|
|
return loops ? 0 : -ETIMEDOUT;
|
|
}
|
|
|
|
|
|
/*
|
|
* Defines shared between transmission and reception.
|
|
*/
|
|
/* HT control fields for firmware */
|
|
struct ewc_ht_info {
|
|
__le16 control1;
|
|
__le16 control2;
|
|
__le16 control3;
|
|
} __attribute__((packed));
|
|
|
|
/* Firmware Station database operations */
|
|
#define MWL8K_STA_DB_ADD_ENTRY 0
|
|
#define MWL8K_STA_DB_MODIFY_ENTRY 1
|
|
#define MWL8K_STA_DB_DEL_ENTRY 2
|
|
#define MWL8K_STA_DB_FLUSH 3
|
|
|
|
/* Peer Entry flags - used to define the type of the peer node */
|
|
#define MWL8K_PEER_TYPE_ACCESSPOINT 2
|
|
|
|
#define MWL8K_IEEE_LEGACY_DATA_RATES 13
|
|
#define MWL8K_MCS_BITMAP_SIZE 16
|
|
|
|
struct peer_capability_info {
|
|
/* Peer type - AP vs. STA. */
|
|
__u8 peer_type;
|
|
|
|
/* Basic 802.11 capabilities from assoc resp. */
|
|
__le16 basic_caps;
|
|
|
|
/* Set if peer supports 802.11n high throughput (HT). */
|
|
__u8 ht_support;
|
|
|
|
/* Valid if HT is supported. */
|
|
__le16 ht_caps;
|
|
__u8 extended_ht_caps;
|
|
struct ewc_ht_info ewc_info;
|
|
|
|
/* Legacy rate table. Intersection of our rates and peer rates. */
|
|
__u8 legacy_rates[MWL8K_IEEE_LEGACY_DATA_RATES];
|
|
|
|
/* HT rate table. Intersection of our rates and peer rates. */
|
|
__u8 ht_rates[MWL8K_MCS_BITMAP_SIZE];
|
|
__u8 pad[16];
|
|
|
|
/* If set, interoperability mode, no proprietary extensions. */
|
|
__u8 interop;
|
|
__u8 pad2;
|
|
__u8 station_id;
|
|
__le16 amsdu_enabled;
|
|
} __attribute__((packed));
|
|
|
|
/* Inline functions to manipulate QoS field in data descriptor. */
|
|
static inline u16 mwl8k_qos_setbit_eosp(u16 qos)
|
|
{
|
|
u16 val_mask = 1 << 4;
|
|
|
|
/* End of Service Period Bit 4 */
|
|
return qos | val_mask;
|
|
}
|
|
|
|
static inline u16 mwl8k_qos_setbit_ack(u16 qos, u8 ack_policy)
|
|
{
|
|
u16 val_mask = 0x3;
|
|
u8 shift = 5;
|
|
u16 qos_mask = ~(val_mask << shift);
|
|
|
|
/* Ack Policy Bit 5-6 */
|
|
return (qos & qos_mask) | ((ack_policy & val_mask) << shift);
|
|
}
|
|
|
|
static inline u16 mwl8k_qos_setbit_amsdu(u16 qos)
|
|
{
|
|
u16 val_mask = 1 << 7;
|
|
|
|
/* AMSDU present Bit 7 */
|
|
return qos | val_mask;
|
|
}
|
|
|
|
static inline u16 mwl8k_qos_setbit_qlen(u16 qos, u8 len)
|
|
{
|
|
u16 val_mask = 0xff;
|
|
u8 shift = 8;
|
|
u16 qos_mask = ~(val_mask << shift);
|
|
|
|
/* Queue Length Bits 8-15 */
|
|
return (qos & qos_mask) | ((len & val_mask) << shift);
|
|
}
|
|
|
|
/* DMA header used by firmware and hardware. */
|
|
struct mwl8k_dma_data {
|
|
__le16 fwlen;
|
|
struct ieee80211_hdr wh;
|
|
} __attribute__((packed));
|
|
|
|
/* Routines to add/remove DMA header from skb. */
|
|
static inline void mwl8k_remove_dma_header(struct sk_buff *skb)
|
|
{
|
|
struct mwl8k_dma_data *tr = (struct mwl8k_dma_data *)skb->data;
|
|
void *dst, *src = &tr->wh;
|
|
int hdrlen = ieee80211_hdrlen(tr->wh.frame_control);
|
|
u16 space = sizeof(struct mwl8k_dma_data) - hdrlen;
|
|
|
|
dst = (void *)tr + space;
|
|
if (dst != src) {
|
|
memmove(dst, src, hdrlen);
|
|
skb_pull(skb, space);
|
|
}
|
|
}
|
|
|
|
static inline void mwl8k_add_dma_header(struct sk_buff *skb)
|
|
{
|
|
struct ieee80211_hdr *wh;
|
|
u32 hdrlen, pktlen;
|
|
struct mwl8k_dma_data *tr;
|
|
|
|
wh = (struct ieee80211_hdr *)skb->data;
|
|
hdrlen = ieee80211_hdrlen(wh->frame_control);
|
|
pktlen = skb->len;
|
|
|
|
/*
|
|
* Copy up/down the 802.11 header; the firmware requires
|
|
* we present a 2-byte payload length followed by a
|
|
* 4-address header (w/o QoS), followed (optionally) by
|
|
* any WEP/ExtIV header (but only filled in for CCMP).
|
|
*/
|
|
if (hdrlen != sizeof(struct mwl8k_dma_data))
|
|
skb_push(skb, sizeof(struct mwl8k_dma_data) - hdrlen);
|
|
|
|
tr = (struct mwl8k_dma_data *)skb->data;
|
|
if (wh != &tr->wh)
|
|
memmove(&tr->wh, wh, hdrlen);
|
|
|
|
/* Clear addr4 */
|
|
memset(tr->wh.addr4, 0, ETH_ALEN);
|
|
|
|
/*
|
|
* Firmware length is the length of the fully formed "802.11
|
|
* payload". That is, everything except for the 802.11 header.
|
|
* This includes all crypto material including the MIC.
|
|
*/
|
|
tr->fwlen = cpu_to_le16(pktlen - hdrlen);
|
|
}
|
|
|
|
|
|
/*
|
|
* Packet reception.
|
|
*/
|
|
#define MWL8K_RX_CTRL_OWNED_BY_HOST 0x02
|
|
|
|
struct mwl8k_rx_desc {
|
|
__le16 pkt_len;
|
|
__u8 link_quality;
|
|
__u8 noise_level;
|
|
__le32 pkt_phys_addr;
|
|
__le32 next_rxd_phys_addr;
|
|
__le16 qos_control;
|
|
__le16 rate_info;
|
|
__le32 pad0[4];
|
|
__u8 rssi;
|
|
__u8 channel;
|
|
__le16 pad1;
|
|
__u8 rx_ctrl;
|
|
__u8 rx_status;
|
|
__u8 pad2[2];
|
|
} __attribute__((packed));
|
|
|
|
#define MWL8K_RX_DESCS 256
|
|
#define MWL8K_RX_MAXSZ 3800
|
|
|
|
#define RATE_INFO_SHORTPRE 0x8000
|
|
#define RATE_INFO_ANTSELECT(x) (((x) >> 11) & 0x3)
|
|
#define RATE_INFO_RATEID(x) (((x) >> 3) & 0x3f)
|
|
#define RATE_INFO_40MHZ 0x0004
|
|
#define RATE_INFO_SHORTGI 0x0002
|
|
#define RATE_INFO_MCS_FORMAT 0x0001
|
|
|
|
static int mwl8k_rxq_init(struct ieee80211_hw *hw, int index)
|
|
{
|
|
struct mwl8k_priv *priv = hw->priv;
|
|
struct mwl8k_rx_queue *rxq = priv->rxq + index;
|
|
int size;
|
|
int i;
|
|
|
|
rxq->rxd_count = 0;
|
|
rxq->head = 0;
|
|
rxq->tail = 0;
|
|
|
|
size = MWL8K_RX_DESCS * sizeof(struct mwl8k_rx_desc);
|
|
|
|
rxq->rxd = pci_alloc_consistent(priv->pdev, size, &rxq->rxd_dma);
|
|
if (rxq->rxd == NULL) {
|
|
printk(KERN_ERR "%s: failed to alloc RX descriptors\n",
|
|
wiphy_name(hw->wiphy));
|
|
return -ENOMEM;
|
|
}
|
|
memset(rxq->rxd, 0, size);
|
|
|
|
rxq->skb = kmalloc(MWL8K_RX_DESCS * sizeof(*rxq->skb), GFP_KERNEL);
|
|
if (rxq->skb == NULL) {
|
|
printk(KERN_ERR "%s: failed to alloc RX skbuff list\n",
|
|
wiphy_name(hw->wiphy));
|
|
pci_free_consistent(priv->pdev, size, rxq->rxd, rxq->rxd_dma);
|
|
return -ENOMEM;
|
|
}
|
|
memset(rxq->skb, 0, MWL8K_RX_DESCS * sizeof(*rxq->skb));
|
|
|
|
for (i = 0; i < MWL8K_RX_DESCS; i++) {
|
|
struct mwl8k_rx_desc *rx_desc;
|
|
int nexti;
|
|
|
|
rx_desc = rxq->rxd + i;
|
|
nexti = (i + 1) % MWL8K_RX_DESCS;
|
|
|
|
rx_desc->next_rxd_phys_addr =
|
|
cpu_to_le32(rxq->rxd_dma + nexti * sizeof(*rx_desc));
|
|
rx_desc->rx_ctrl = MWL8K_RX_CTRL_OWNED_BY_HOST;
|
|
}
|
|
|
|
return 0;
|
|
}
|
|
|
|
static int rxq_refill(struct ieee80211_hw *hw, int index, int limit)
|
|
{
|
|
struct mwl8k_priv *priv = hw->priv;
|
|
struct mwl8k_rx_queue *rxq = priv->rxq + index;
|
|
int refilled;
|
|
|
|
refilled = 0;
|
|
while (rxq->rxd_count < MWL8K_RX_DESCS && limit--) {
|
|
struct sk_buff *skb;
|
|
int rx;
|
|
|
|
skb = dev_alloc_skb(MWL8K_RX_MAXSZ);
|
|
if (skb == NULL)
|
|
break;
|
|
|
|
rxq->rxd_count++;
|
|
|
|
rx = rxq->tail;
|
|
rxq->tail = (rx + 1) % MWL8K_RX_DESCS;
|
|
|
|
rxq->rxd[rx].pkt_phys_addr =
|
|
cpu_to_le32(pci_map_single(priv->pdev, skb->data,
|
|
MWL8K_RX_MAXSZ, DMA_FROM_DEVICE));
|
|
|
|
rxq->rxd[rx].pkt_len = cpu_to_le16(MWL8K_RX_MAXSZ);
|
|
rxq->skb[rx] = skb;
|
|
wmb();
|
|
rxq->rxd[rx].rx_ctrl = 0;
|
|
|
|
refilled++;
|
|
}
|
|
|
|
return refilled;
|
|
}
|
|
|
|
/* Must be called only when the card's reception is completely halted */
|
|
static void mwl8k_rxq_deinit(struct ieee80211_hw *hw, int index)
|
|
{
|
|
struct mwl8k_priv *priv = hw->priv;
|
|
struct mwl8k_rx_queue *rxq = priv->rxq + index;
|
|
int i;
|
|
|
|
for (i = 0; i < MWL8K_RX_DESCS; i++) {
|
|
if (rxq->skb[i] != NULL) {
|
|
unsigned long addr;
|
|
|
|
addr = le32_to_cpu(rxq->rxd[i].pkt_phys_addr);
|
|
pci_unmap_single(priv->pdev, addr, MWL8K_RX_MAXSZ,
|
|
PCI_DMA_FROMDEVICE);
|
|
kfree_skb(rxq->skb[i]);
|
|
rxq->skb[i] = NULL;
|
|
}
|
|
}
|
|
|
|
kfree(rxq->skb);
|
|
rxq->skb = NULL;
|
|
|
|
pci_free_consistent(priv->pdev,
|
|
MWL8K_RX_DESCS * sizeof(struct mwl8k_rx_desc),
|
|
rxq->rxd, rxq->rxd_dma);
|
|
rxq->rxd = NULL;
|
|
}
|
|
|
|
|
|
/*
|
|
* Scan a list of BSSIDs to process for finalize join.
|
|
* Allows for extension to process multiple BSSIDs.
|
|
*/
|
|
static inline int
|
|
mwl8k_capture_bssid(struct mwl8k_priv *priv, struct ieee80211_hdr *wh)
|
|
{
|
|
return priv->capture_beacon &&
|
|
ieee80211_is_beacon(wh->frame_control) &&
|
|
!compare_ether_addr(wh->addr3, priv->capture_bssid);
|
|
}
|
|
|
|
static inline void mwl8k_save_beacon(struct ieee80211_hw *hw,
|
|
struct sk_buff *skb)
|
|
{
|
|
struct mwl8k_priv *priv = hw->priv;
|
|
|
|
priv->capture_beacon = false;
|
|
memset(priv->capture_bssid, 0, ETH_ALEN);
|
|
|
|
/*
|
|
* Use GFP_ATOMIC as rxq_process is called from
|
|
* the primary interrupt handler, memory allocation call
|
|
* must not sleep.
|
|
*/
|
|
priv->beacon_skb = skb_copy(skb, GFP_ATOMIC);
|
|
if (priv->beacon_skb != NULL)
|
|
ieee80211_queue_work(hw, &priv->finalize_join_worker);
|
|
}
|
|
|
|
static int rxq_process(struct ieee80211_hw *hw, int index, int limit)
|
|
{
|
|
struct mwl8k_priv *priv = hw->priv;
|
|
struct mwl8k_rx_queue *rxq = priv->rxq + index;
|
|
int processed;
|
|
|
|
processed = 0;
|
|
while (rxq->rxd_count && limit--) {
|
|
struct mwl8k_rx_desc *rx_desc;
|
|
struct sk_buff *skb;
|
|
struct ieee80211_rx_status status;
|
|
unsigned long addr;
|
|
struct ieee80211_hdr *wh;
|
|
u16 rate_info;
|
|
|
|
rx_desc = rxq->rxd + rxq->head;
|
|
if (!(rx_desc->rx_ctrl & MWL8K_RX_CTRL_OWNED_BY_HOST))
|
|
break;
|
|
rmb();
|
|
|
|
skb = rxq->skb[rxq->head];
|
|
if (skb == NULL)
|
|
break;
|
|
rxq->skb[rxq->head] = NULL;
|
|
|
|
rxq->head = (rxq->head + 1) % MWL8K_RX_DESCS;
|
|
rxq->rxd_count--;
|
|
|
|
addr = le32_to_cpu(rx_desc->pkt_phys_addr);
|
|
pci_unmap_single(priv->pdev, addr,
|
|
MWL8K_RX_MAXSZ, PCI_DMA_FROMDEVICE);
|
|
|
|
skb_put(skb, le16_to_cpu(rx_desc->pkt_len));
|
|
mwl8k_remove_dma_header(skb);
|
|
|
|
wh = (struct ieee80211_hdr *)skb->data;
|
|
|
|
/*
|
|
* Check for a pending join operation. Save a
|
|
* copy of the beacon and schedule a tasklet to
|
|
* send a FINALIZE_JOIN command to the firmware.
|
|
*/
|
|
if (mwl8k_capture_bssid(priv, wh))
|
|
mwl8k_save_beacon(hw, skb);
|
|
|
|
rate_info = le16_to_cpu(rx_desc->rate_info);
|
|
|
|
memset(&status, 0, sizeof(status));
|
|
status.mactime = 0;
|
|
status.signal = -rx_desc->rssi;
|
|
status.noise = -rx_desc->noise_level;
|
|
status.qual = rx_desc->link_quality;
|
|
status.antenna = RATE_INFO_ANTSELECT(rate_info);
|
|
status.rate_idx = RATE_INFO_RATEID(rate_info);
|
|
status.flag = 0;
|
|
if (rate_info & RATE_INFO_SHORTPRE)
|
|
status.flag |= RX_FLAG_SHORTPRE;
|
|
if (rate_info & RATE_INFO_40MHZ)
|
|
status.flag |= RX_FLAG_40MHZ;
|
|
if (rate_info & RATE_INFO_SHORTGI)
|
|
status.flag |= RX_FLAG_SHORT_GI;
|
|
if (rate_info & RATE_INFO_MCS_FORMAT)
|
|
status.flag |= RX_FLAG_HT;
|
|
status.band = IEEE80211_BAND_2GHZ;
|
|
status.freq = ieee80211_channel_to_frequency(rx_desc->channel);
|
|
memcpy(IEEE80211_SKB_RXCB(skb), &status, sizeof(status));
|
|
ieee80211_rx_irqsafe(hw, skb);
|
|
|
|
processed++;
|
|
}
|
|
|
|
return processed;
|
|
}
|
|
|
|
|
|
/*
|
|
* Packet transmission.
|
|
*/
|
|
|
|
/* Transmit packet ACK policy */
|
|
#define MWL8K_TXD_ACK_POLICY_NORMAL 0
|
|
#define MWL8K_TXD_ACK_POLICY_BLOCKACK 3
|
|
|
|
#define MWL8K_TXD_STATUS_OK 0x00000001
|
|
#define MWL8K_TXD_STATUS_OK_RETRY 0x00000002
|
|
#define MWL8K_TXD_STATUS_OK_MORE_RETRY 0x00000004
|
|
#define MWL8K_TXD_STATUS_MULTICAST_TX 0x00000008
|
|
#define MWL8K_TXD_STATUS_FW_OWNED 0x80000000
|
|
|
|
struct mwl8k_tx_desc {
|
|
__le32 status;
|
|
__u8 data_rate;
|
|
__u8 tx_priority;
|
|
__le16 qos_control;
|
|
__le32 pkt_phys_addr;
|
|
__le16 pkt_len;
|
|
__u8 dest_MAC_addr[ETH_ALEN];
|
|
__le32 next_txd_phys_addr;
|
|
__le32 reserved;
|
|
__le16 rate_info;
|
|
__u8 peer_id;
|
|
__u8 tx_frag_cnt;
|
|
} __attribute__((packed));
|
|
|
|
#define MWL8K_TX_DESCS 128
|
|
|
|
static int mwl8k_txq_init(struct ieee80211_hw *hw, int index)
|
|
{
|
|
struct mwl8k_priv *priv = hw->priv;
|
|
struct mwl8k_tx_queue *txq = priv->txq + index;
|
|
int size;
|
|
int i;
|
|
|
|
memset(&txq->stats, 0, sizeof(struct ieee80211_tx_queue_stats));
|
|
txq->stats.limit = MWL8K_TX_DESCS;
|
|
txq->head = 0;
|
|
txq->tail = 0;
|
|
|
|
size = MWL8K_TX_DESCS * sizeof(struct mwl8k_tx_desc);
|
|
|
|
txq->txd = pci_alloc_consistent(priv->pdev, size, &txq->txd_dma);
|
|
if (txq->txd == NULL) {
|
|
printk(KERN_ERR "%s: failed to alloc TX descriptors\n",
|
|
wiphy_name(hw->wiphy));
|
|
return -ENOMEM;
|
|
}
|
|
memset(txq->txd, 0, size);
|
|
|
|
txq->skb = kmalloc(MWL8K_TX_DESCS * sizeof(*txq->skb), GFP_KERNEL);
|
|
if (txq->skb == NULL) {
|
|
printk(KERN_ERR "%s: failed to alloc TX skbuff list\n",
|
|
wiphy_name(hw->wiphy));
|
|
pci_free_consistent(priv->pdev, size, txq->txd, txq->txd_dma);
|
|
return -ENOMEM;
|
|
}
|
|
memset(txq->skb, 0, MWL8K_TX_DESCS * sizeof(*txq->skb));
|
|
|
|
for (i = 0; i < MWL8K_TX_DESCS; i++) {
|
|
struct mwl8k_tx_desc *tx_desc;
|
|
int nexti;
|
|
|
|
tx_desc = txq->txd + i;
|
|
nexti = (i + 1) % MWL8K_TX_DESCS;
|
|
|
|
tx_desc->status = 0;
|
|
tx_desc->next_txd_phys_addr =
|
|
cpu_to_le32(txq->txd_dma + nexti * sizeof(*tx_desc));
|
|
}
|
|
|
|
return 0;
|
|
}
|
|
|
|
static inline void mwl8k_tx_start(struct mwl8k_priv *priv)
|
|
{
|
|
iowrite32(MWL8K_H2A_INT_PPA_READY,
|
|
priv->regs + MWL8K_HIU_H2A_INTERRUPT_EVENTS);
|
|
iowrite32(MWL8K_H2A_INT_DUMMY,
|
|
priv->regs + MWL8K_HIU_H2A_INTERRUPT_EVENTS);
|
|
ioread32(priv->regs + MWL8K_HIU_INT_CODE);
|
|
}
|
|
|
|
struct mwl8k_txq_info {
|
|
u32 fw_owned;
|
|
u32 drv_owned;
|
|
u32 unused;
|
|
u32 len;
|
|
u32 head;
|
|
u32 tail;
|
|
};
|
|
|
|
static int mwl8k_scan_tx_ring(struct mwl8k_priv *priv,
|
|
struct mwl8k_txq_info *txinfo)
|
|
{
|
|
int count, desc, status;
|
|
struct mwl8k_tx_queue *txq;
|
|
struct mwl8k_tx_desc *tx_desc;
|
|
int ndescs = 0;
|
|
|
|
memset(txinfo, 0, MWL8K_TX_QUEUES * sizeof(struct mwl8k_txq_info));
|
|
|
|
for (count = 0; count < MWL8K_TX_QUEUES; count++) {
|
|
txq = priv->txq + count;
|
|
txinfo[count].len = txq->stats.len;
|
|
txinfo[count].head = txq->head;
|
|
txinfo[count].tail = txq->tail;
|
|
for (desc = 0; desc < MWL8K_TX_DESCS; desc++) {
|
|
tx_desc = txq->txd + desc;
|
|
status = le32_to_cpu(tx_desc->status);
|
|
|
|
if (status & MWL8K_TXD_STATUS_FW_OWNED)
|
|
txinfo[count].fw_owned++;
|
|
else
|
|
txinfo[count].drv_owned++;
|
|
|
|
if (tx_desc->pkt_len == 0)
|
|
txinfo[count].unused++;
|
|
}
|
|
}
|
|
|
|
return ndescs;
|
|
}
|
|
|
|
/*
|
|
* Must be called with priv->fw_mutex held and tx queues stopped.
|
|
*/
|
|
static int mwl8k_tx_wait_empty(struct ieee80211_hw *hw)
|
|
{
|
|
struct mwl8k_priv *priv = hw->priv;
|
|
DECLARE_COMPLETION_ONSTACK(tx_wait);
|
|
u32 count;
|
|
unsigned long timeout;
|
|
|
|
might_sleep();
|
|
|
|
spin_lock_bh(&priv->tx_lock);
|
|
count = priv->pending_tx_pkts;
|
|
if (count)
|
|
priv->tx_wait = &tx_wait;
|
|
spin_unlock_bh(&priv->tx_lock);
|
|
|
|
if (count) {
|
|
struct mwl8k_txq_info txinfo[MWL8K_TX_QUEUES];
|
|
int index;
|
|
int newcount;
|
|
|
|
timeout = wait_for_completion_timeout(&tx_wait,
|
|
msecs_to_jiffies(5000));
|
|
if (timeout)
|
|
return 0;
|
|
|
|
spin_lock_bh(&priv->tx_lock);
|
|
priv->tx_wait = NULL;
|
|
newcount = priv->pending_tx_pkts;
|
|
mwl8k_scan_tx_ring(priv, txinfo);
|
|
spin_unlock_bh(&priv->tx_lock);
|
|
|
|
printk(KERN_ERR "%s(%u) TIMEDOUT:5000ms Pend:%u-->%u\n",
|
|
__func__, __LINE__, count, newcount);
|
|
|
|
for (index = 0; index < MWL8K_TX_QUEUES; index++)
|
|
printk(KERN_ERR "TXQ:%u L:%u H:%u T:%u FW:%u "
|
|
"DRV:%u U:%u\n",
|
|
index,
|
|
txinfo[index].len,
|
|
txinfo[index].head,
|
|
txinfo[index].tail,
|
|
txinfo[index].fw_owned,
|
|
txinfo[index].drv_owned,
|
|
txinfo[index].unused);
|
|
|
|
return -ETIMEDOUT;
|
|
}
|
|
|
|
return 0;
|
|
}
|
|
|
|
#define MWL8K_TXD_SUCCESS(status) \
|
|
((status) & (MWL8K_TXD_STATUS_OK | \
|
|
MWL8K_TXD_STATUS_OK_RETRY | \
|
|
MWL8K_TXD_STATUS_OK_MORE_RETRY))
|
|
|
|
static void mwl8k_txq_reclaim(struct ieee80211_hw *hw, int index, int force)
|
|
{
|
|
struct mwl8k_priv *priv = hw->priv;
|
|
struct mwl8k_tx_queue *txq = priv->txq + index;
|
|
int wake = 0;
|
|
|
|
while (txq->stats.len > 0) {
|
|
int tx;
|
|
struct mwl8k_tx_desc *tx_desc;
|
|
unsigned long addr;
|
|
int size;
|
|
struct sk_buff *skb;
|
|
struct ieee80211_tx_info *info;
|
|
u32 status;
|
|
|
|
tx = txq->head;
|
|
tx_desc = txq->txd + tx;
|
|
|
|
status = le32_to_cpu(tx_desc->status);
|
|
|
|
if (status & MWL8K_TXD_STATUS_FW_OWNED) {
|
|
if (!force)
|
|
break;
|
|
tx_desc->status &=
|
|
~cpu_to_le32(MWL8K_TXD_STATUS_FW_OWNED);
|
|
}
|
|
|
|
txq->head = (tx + 1) % MWL8K_TX_DESCS;
|
|
BUG_ON(txq->stats.len == 0);
|
|
txq->stats.len--;
|
|
priv->pending_tx_pkts--;
|
|
|
|
addr = le32_to_cpu(tx_desc->pkt_phys_addr);
|
|
size = le16_to_cpu(tx_desc->pkt_len);
|
|
skb = txq->skb[tx];
|
|
txq->skb[tx] = NULL;
|
|
|
|
BUG_ON(skb == NULL);
|
|
pci_unmap_single(priv->pdev, addr, size, PCI_DMA_TODEVICE);
|
|
|
|
mwl8k_remove_dma_header(skb);
|
|
|
|
/* Mark descriptor as unused */
|
|
tx_desc->pkt_phys_addr = 0;
|
|
tx_desc->pkt_len = 0;
|
|
|
|
info = IEEE80211_SKB_CB(skb);
|
|
ieee80211_tx_info_clear_status(info);
|
|
if (MWL8K_TXD_SUCCESS(status))
|
|
info->flags |= IEEE80211_TX_STAT_ACK;
|
|
|
|
ieee80211_tx_status_irqsafe(hw, skb);
|
|
|
|
wake = 1;
|
|
}
|
|
|
|
if (wake && priv->radio_on && !mutex_is_locked(&priv->fw_mutex))
|
|
ieee80211_wake_queue(hw, index);
|
|
}
|
|
|
|
/* must be called only when the card's transmit is completely halted */
|
|
static void mwl8k_txq_deinit(struct ieee80211_hw *hw, int index)
|
|
{
|
|
struct mwl8k_priv *priv = hw->priv;
|
|
struct mwl8k_tx_queue *txq = priv->txq + index;
|
|
|
|
mwl8k_txq_reclaim(hw, index, 1);
|
|
|
|
kfree(txq->skb);
|
|
txq->skb = NULL;
|
|
|
|
pci_free_consistent(priv->pdev,
|
|
MWL8K_TX_DESCS * sizeof(struct mwl8k_tx_desc),
|
|
txq->txd, txq->txd_dma);
|
|
txq->txd = NULL;
|
|
}
|
|
|
|
static int
|
|
mwl8k_txq_xmit(struct ieee80211_hw *hw, int index, struct sk_buff *skb)
|
|
{
|
|
struct mwl8k_priv *priv = hw->priv;
|
|
struct ieee80211_tx_info *tx_info;
|
|
struct mwl8k_vif *mwl8k_vif;
|
|
struct ieee80211_hdr *wh;
|
|
struct mwl8k_tx_queue *txq;
|
|
struct mwl8k_tx_desc *tx;
|
|
dma_addr_t dma;
|
|
u32 txstatus;
|
|
u8 txdatarate;
|
|
u16 qos;
|
|
|
|
wh = (struct ieee80211_hdr *)skb->data;
|
|
if (ieee80211_is_data_qos(wh->frame_control))
|
|
qos = le16_to_cpu(*((__le16 *)ieee80211_get_qos_ctl(wh)));
|
|
else
|
|
qos = 0;
|
|
|
|
mwl8k_add_dma_header(skb);
|
|
wh = &((struct mwl8k_dma_data *)skb->data)->wh;
|
|
|
|
tx_info = IEEE80211_SKB_CB(skb);
|
|
mwl8k_vif = MWL8K_VIF(tx_info->control.vif);
|
|
|
|
if (tx_info->flags & IEEE80211_TX_CTL_ASSIGN_SEQ) {
|
|
u16 seqno = mwl8k_vif->seqno;
|
|
|
|
wh->seq_ctrl &= cpu_to_le16(IEEE80211_SCTL_FRAG);
|
|
wh->seq_ctrl |= cpu_to_le16(seqno << 4);
|
|
mwl8k_vif->seqno = seqno++ % 4096;
|
|
}
|
|
|
|
/* Setup firmware control bit fields for each frame type. */
|
|
txstatus = 0;
|
|
txdatarate = 0;
|
|
if (ieee80211_is_mgmt(wh->frame_control) ||
|
|
ieee80211_is_ctl(wh->frame_control)) {
|
|
txdatarate = 0;
|
|
qos = mwl8k_qos_setbit_eosp(qos);
|
|
/* Set Queue size to unspecified */
|
|
qos = mwl8k_qos_setbit_qlen(qos, 0xff);
|
|
} else if (ieee80211_is_data(wh->frame_control)) {
|
|
txdatarate = 1;
|
|
if (is_multicast_ether_addr(wh->addr1))
|
|
txstatus |= MWL8K_TXD_STATUS_MULTICAST_TX;
|
|
|
|
/* Send pkt in an aggregate if AMPDU frame. */
|
|
if (tx_info->flags & IEEE80211_TX_CTL_AMPDU)
|
|
qos = mwl8k_qos_setbit_ack(qos,
|
|
MWL8K_TXD_ACK_POLICY_BLOCKACK);
|
|
else
|
|
qos = mwl8k_qos_setbit_ack(qos,
|
|
MWL8K_TXD_ACK_POLICY_NORMAL);
|
|
|
|
if (qos & IEEE80211_QOS_CONTROL_A_MSDU_PRESENT)
|
|
qos = mwl8k_qos_setbit_amsdu(qos);
|
|
}
|
|
|
|
dma = pci_map_single(priv->pdev, skb->data,
|
|
skb->len, PCI_DMA_TODEVICE);
|
|
|
|
if (pci_dma_mapping_error(priv->pdev, dma)) {
|
|
printk(KERN_DEBUG "%s: failed to dma map skb, "
|
|
"dropping TX frame.\n", wiphy_name(hw->wiphy));
|
|
dev_kfree_skb(skb);
|
|
return NETDEV_TX_OK;
|
|
}
|
|
|
|
spin_lock_bh(&priv->tx_lock);
|
|
|
|
txq = priv->txq + index;
|
|
|
|
BUG_ON(txq->skb[txq->tail] != NULL);
|
|
txq->skb[txq->tail] = skb;
|
|
|
|
tx = txq->txd + txq->tail;
|
|
tx->data_rate = txdatarate;
|
|
tx->tx_priority = index;
|
|
tx->qos_control = cpu_to_le16(qos);
|
|
tx->pkt_phys_addr = cpu_to_le32(dma);
|
|
tx->pkt_len = cpu_to_le16(skb->len);
|
|
tx->rate_info = 0;
|
|
tx->peer_id = mwl8k_vif->peer_id;
|
|
wmb();
|
|
tx->status = cpu_to_le32(MWL8K_TXD_STATUS_FW_OWNED | txstatus);
|
|
|
|
txq->stats.count++;
|
|
txq->stats.len++;
|
|
priv->pending_tx_pkts++;
|
|
|
|
txq->tail++;
|
|
if (txq->tail == MWL8K_TX_DESCS)
|
|
txq->tail = 0;
|
|
|
|
if (txq->head == txq->tail)
|
|
ieee80211_stop_queue(hw, index);
|
|
|
|
mwl8k_tx_start(priv);
|
|
|
|
spin_unlock_bh(&priv->tx_lock);
|
|
|
|
return NETDEV_TX_OK;
|
|
}
|
|
|
|
|
|
/*
|
|
* Firmware access.
|
|
*
|
|
* We have the following requirements for issuing firmware commands:
|
|
* - Some commands require that the packet transmit path is idle when
|
|
* the command is issued. (For simplicity, we'll just quiesce the
|
|
* transmit path for every command.)
|
|
* - There are certain sequences of commands that need to be issued to
|
|
* the hardware sequentially, with no other intervening commands.
|
|
*
|
|
* This leads to an implementation of a "firmware lock" as a mutex that
|
|
* can be taken recursively, and which is taken by both the low-level
|
|
* command submission function (mwl8k_post_cmd) as well as any users of
|
|
* that function that require issuing of an atomic sequence of commands,
|
|
* and quiesces the transmit path whenever it's taken.
|
|
*/
|
|
static int mwl8k_fw_lock(struct ieee80211_hw *hw)
|
|
{
|
|
struct mwl8k_priv *priv = hw->priv;
|
|
|
|
if (priv->fw_mutex_owner != current) {
|
|
int rc;
|
|
|
|
mutex_lock(&priv->fw_mutex);
|
|
ieee80211_stop_queues(hw);
|
|
|
|
rc = mwl8k_tx_wait_empty(hw);
|
|
if (rc) {
|
|
ieee80211_wake_queues(hw);
|
|
mutex_unlock(&priv->fw_mutex);
|
|
|
|
return rc;
|
|
}
|
|
|
|
priv->fw_mutex_owner = current;
|
|
}
|
|
|
|
priv->fw_mutex_depth++;
|
|
|
|
return 0;
|
|
}
|
|
|
|
static void mwl8k_fw_unlock(struct ieee80211_hw *hw)
|
|
{
|
|
struct mwl8k_priv *priv = hw->priv;
|
|
|
|
if (!--priv->fw_mutex_depth) {
|
|
ieee80211_wake_queues(hw);
|
|
priv->fw_mutex_owner = NULL;
|
|
mutex_unlock(&priv->fw_mutex);
|
|
}
|
|
}
|
|
|
|
|
|
/*
|
|
* Command processing.
|
|
*/
|
|
|
|
/* Timeout firmware commands after 2000ms */
|
|
#define MWL8K_CMD_TIMEOUT_MS 2000
|
|
|
|
static int mwl8k_post_cmd(struct ieee80211_hw *hw, struct mwl8k_cmd_pkt *cmd)
|
|
{
|
|
DECLARE_COMPLETION_ONSTACK(cmd_wait);
|
|
struct mwl8k_priv *priv = hw->priv;
|
|
void __iomem *regs = priv->regs;
|
|
dma_addr_t dma_addr;
|
|
unsigned int dma_size;
|
|
int rc;
|
|
unsigned long timeout = 0;
|
|
u8 buf[32];
|
|
|
|
cmd->result = 0xffff;
|
|
dma_size = le16_to_cpu(cmd->length);
|
|
dma_addr = pci_map_single(priv->pdev, cmd, dma_size,
|
|
PCI_DMA_BIDIRECTIONAL);
|
|
if (pci_dma_mapping_error(priv->pdev, dma_addr))
|
|
return -ENOMEM;
|
|
|
|
rc = mwl8k_fw_lock(hw);
|
|
if (rc) {
|
|
pci_unmap_single(priv->pdev, dma_addr, dma_size,
|
|
PCI_DMA_BIDIRECTIONAL);
|
|
return rc;
|
|
}
|
|
|
|
priv->hostcmd_wait = &cmd_wait;
|
|
iowrite32(dma_addr, regs + MWL8K_HIU_GEN_PTR);
|
|
iowrite32(MWL8K_H2A_INT_DOORBELL,
|
|
regs + MWL8K_HIU_H2A_INTERRUPT_EVENTS);
|
|
iowrite32(MWL8K_H2A_INT_DUMMY,
|
|
regs + MWL8K_HIU_H2A_INTERRUPT_EVENTS);
|
|
|
|
timeout = wait_for_completion_timeout(&cmd_wait,
|
|
msecs_to_jiffies(MWL8K_CMD_TIMEOUT_MS));
|
|
|
|
priv->hostcmd_wait = NULL;
|
|
|
|
mwl8k_fw_unlock(hw);
|
|
|
|
pci_unmap_single(priv->pdev, dma_addr, dma_size,
|
|
PCI_DMA_BIDIRECTIONAL);
|
|
|
|
if (!timeout) {
|
|
printk(KERN_ERR "%s: Command %s timeout after %u ms\n",
|
|
wiphy_name(hw->wiphy),
|
|
mwl8k_cmd_name(cmd->code, buf, sizeof(buf)),
|
|
MWL8K_CMD_TIMEOUT_MS);
|
|
rc = -ETIMEDOUT;
|
|
} else {
|
|
rc = cmd->result ? -EINVAL : 0;
|
|
if (rc)
|
|
printk(KERN_ERR "%s: Command %s error 0x%x\n",
|
|
wiphy_name(hw->wiphy),
|
|
mwl8k_cmd_name(cmd->code, buf, sizeof(buf)),
|
|
le16_to_cpu(cmd->result));
|
|
}
|
|
|
|
return rc;
|
|
}
|
|
|
|
/*
|
|
* GET_HW_SPEC.
|
|
*/
|
|
struct mwl8k_cmd_get_hw_spec {
|
|
struct mwl8k_cmd_pkt header;
|
|
__u8 hw_rev;
|
|
__u8 host_interface;
|
|
__le16 num_mcaddrs;
|
|
__u8 perm_addr[ETH_ALEN];
|
|
__le16 region_code;
|
|
__le32 fw_rev;
|
|
__le32 ps_cookie;
|
|
__le32 caps;
|
|
__u8 mcs_bitmap[16];
|
|
__le32 rx_queue_ptr;
|
|
__le32 num_tx_queues;
|
|
__le32 tx_queue_ptrs[MWL8K_TX_QUEUES];
|
|
__le32 caps2;
|
|
__le32 num_tx_desc_per_queue;
|
|
__le32 total_rxd;
|
|
} __attribute__((packed));
|
|
|
|
static int mwl8k_cmd_get_hw_spec(struct ieee80211_hw *hw)
|
|
{
|
|
struct mwl8k_priv *priv = hw->priv;
|
|
struct mwl8k_cmd_get_hw_spec *cmd;
|
|
int rc;
|
|
int i;
|
|
|
|
cmd = kzalloc(sizeof(*cmd), GFP_KERNEL);
|
|
if (cmd == NULL)
|
|
return -ENOMEM;
|
|
|
|
cmd->header.code = cpu_to_le16(MWL8K_CMD_GET_HW_SPEC);
|
|
cmd->header.length = cpu_to_le16(sizeof(*cmd));
|
|
|
|
memset(cmd->perm_addr, 0xff, sizeof(cmd->perm_addr));
|
|
cmd->ps_cookie = cpu_to_le32(priv->cookie_dma);
|
|
cmd->rx_queue_ptr = cpu_to_le32(priv->rxq[0].rxd_dma);
|
|
cmd->num_tx_queues = cpu_to_le32(MWL8K_TX_QUEUES);
|
|
for (i = 0; i < MWL8K_TX_QUEUES; i++)
|
|
cmd->tx_queue_ptrs[i] = cpu_to_le32(priv->txq[i].txd_dma);
|
|
cmd->num_tx_desc_per_queue = cpu_to_le32(MWL8K_TX_DESCS);
|
|
cmd->total_rxd = cpu_to_le32(MWL8K_RX_DESCS);
|
|
|
|
rc = mwl8k_post_cmd(hw, &cmd->header);
|
|
|
|
if (!rc) {
|
|
SET_IEEE80211_PERM_ADDR(hw, cmd->perm_addr);
|
|
priv->num_mcaddrs = le16_to_cpu(cmd->num_mcaddrs);
|
|
priv->fw_rev = le32_to_cpu(cmd->fw_rev);
|
|
priv->hw_rev = cmd->hw_rev;
|
|
}
|
|
|
|
kfree(cmd);
|
|
return rc;
|
|
}
|
|
|
|
/*
|
|
* CMD_MAC_MULTICAST_ADR.
|
|
*/
|
|
struct mwl8k_cmd_mac_multicast_adr {
|
|
struct mwl8k_cmd_pkt header;
|
|
__le16 action;
|
|
__le16 numaddr;
|
|
__u8 addr[0][ETH_ALEN];
|
|
};
|
|
|
|
#define MWL8K_ENABLE_RX_DIRECTED 0x0001
|
|
#define MWL8K_ENABLE_RX_MULTICAST 0x0002
|
|
#define MWL8K_ENABLE_RX_ALL_MULTICAST 0x0004
|
|
#define MWL8K_ENABLE_RX_BROADCAST 0x0008
|
|
|
|
static struct mwl8k_cmd_pkt *
|
|
__mwl8k_cmd_mac_multicast_adr(struct ieee80211_hw *hw, int allmulti,
|
|
int mc_count, struct dev_addr_list *mclist)
|
|
{
|
|
struct mwl8k_priv *priv = hw->priv;
|
|
struct mwl8k_cmd_mac_multicast_adr *cmd;
|
|
int size;
|
|
|
|
if (allmulti || mc_count > priv->num_mcaddrs) {
|
|
allmulti = 1;
|
|
mc_count = 0;
|
|
}
|
|
|
|
size = sizeof(*cmd) + mc_count * ETH_ALEN;
|
|
|
|
cmd = kzalloc(size, GFP_ATOMIC);
|
|
if (cmd == NULL)
|
|
return NULL;
|
|
|
|
cmd->header.code = cpu_to_le16(MWL8K_CMD_MAC_MULTICAST_ADR);
|
|
cmd->header.length = cpu_to_le16(size);
|
|
cmd->action = cpu_to_le16(MWL8K_ENABLE_RX_DIRECTED |
|
|
MWL8K_ENABLE_RX_BROADCAST);
|
|
|
|
if (allmulti) {
|
|
cmd->action |= cpu_to_le16(MWL8K_ENABLE_RX_ALL_MULTICAST);
|
|
} else if (mc_count) {
|
|
int i;
|
|
|
|
cmd->action |= cpu_to_le16(MWL8K_ENABLE_RX_MULTICAST);
|
|
cmd->numaddr = cpu_to_le16(mc_count);
|
|
for (i = 0; i < mc_count && mclist; i++) {
|
|
if (mclist->da_addrlen != ETH_ALEN) {
|
|
kfree(cmd);
|
|
return NULL;
|
|
}
|
|
memcpy(cmd->addr[i], mclist->da_addr, ETH_ALEN);
|
|
mclist = mclist->next;
|
|
}
|
|
}
|
|
|
|
return &cmd->header;
|
|
}
|
|
|
|
/*
|
|
* CMD_802_11_GET_STAT.
|
|
*/
|
|
struct mwl8k_cmd_802_11_get_stat {
|
|
struct mwl8k_cmd_pkt header;
|
|
__le32 stats[64];
|
|
} __attribute__((packed));
|
|
|
|
#define MWL8K_STAT_ACK_FAILURE 9
|
|
#define MWL8K_STAT_RTS_FAILURE 12
|
|
#define MWL8K_STAT_FCS_ERROR 24
|
|
#define MWL8K_STAT_RTS_SUCCESS 11
|
|
|
|
static int mwl8k_cmd_802_11_get_stat(struct ieee80211_hw *hw,
|
|
struct ieee80211_low_level_stats *stats)
|
|
{
|
|
struct mwl8k_cmd_802_11_get_stat *cmd;
|
|
int rc;
|
|
|
|
cmd = kzalloc(sizeof(*cmd), GFP_KERNEL);
|
|
if (cmd == NULL)
|
|
return -ENOMEM;
|
|
|
|
cmd->header.code = cpu_to_le16(MWL8K_CMD_GET_STAT);
|
|
cmd->header.length = cpu_to_le16(sizeof(*cmd));
|
|
|
|
rc = mwl8k_post_cmd(hw, &cmd->header);
|
|
if (!rc) {
|
|
stats->dot11ACKFailureCount =
|
|
le32_to_cpu(cmd->stats[MWL8K_STAT_ACK_FAILURE]);
|
|
stats->dot11RTSFailureCount =
|
|
le32_to_cpu(cmd->stats[MWL8K_STAT_RTS_FAILURE]);
|
|
stats->dot11FCSErrorCount =
|
|
le32_to_cpu(cmd->stats[MWL8K_STAT_FCS_ERROR]);
|
|
stats->dot11RTSSuccessCount =
|
|
le32_to_cpu(cmd->stats[MWL8K_STAT_RTS_SUCCESS]);
|
|
}
|
|
kfree(cmd);
|
|
|
|
return rc;
|
|
}
|
|
|
|
/*
|
|
* CMD_802_11_RADIO_CONTROL.
|
|
*/
|
|
struct mwl8k_cmd_802_11_radio_control {
|
|
struct mwl8k_cmd_pkt header;
|
|
__le16 action;
|
|
__le16 control;
|
|
__le16 radio_on;
|
|
} __attribute__((packed));
|
|
|
|
static int
|
|
mwl8k_cmd_802_11_radio_control(struct ieee80211_hw *hw, bool enable, bool force)
|
|
{
|
|
struct mwl8k_priv *priv = hw->priv;
|
|
struct mwl8k_cmd_802_11_radio_control *cmd;
|
|
int rc;
|
|
|
|
if (enable == priv->radio_on && !force)
|
|
return 0;
|
|
|
|
cmd = kzalloc(sizeof(*cmd), GFP_KERNEL);
|
|
if (cmd == NULL)
|
|
return -ENOMEM;
|
|
|
|
cmd->header.code = cpu_to_le16(MWL8K_CMD_RADIO_CONTROL);
|
|
cmd->header.length = cpu_to_le16(sizeof(*cmd));
|
|
cmd->action = cpu_to_le16(MWL8K_CMD_SET);
|
|
cmd->control = cpu_to_le16(priv->radio_short_preamble ? 3 : 1);
|
|
cmd->radio_on = cpu_to_le16(enable ? 0x0001 : 0x0000);
|
|
|
|
rc = mwl8k_post_cmd(hw, &cmd->header);
|
|
kfree(cmd);
|
|
|
|
if (!rc)
|
|
priv->radio_on = enable;
|
|
|
|
return rc;
|
|
}
|
|
|
|
static int mwl8k_cmd_802_11_radio_disable(struct ieee80211_hw *hw)
|
|
{
|
|
return mwl8k_cmd_802_11_radio_control(hw, 0, 0);
|
|
}
|
|
|
|
static int mwl8k_cmd_802_11_radio_enable(struct ieee80211_hw *hw)
|
|
{
|
|
return mwl8k_cmd_802_11_radio_control(hw, 1, 0);
|
|
}
|
|
|
|
static int
|
|
mwl8k_set_radio_preamble(struct ieee80211_hw *hw, bool short_preamble)
|
|
{
|
|
struct mwl8k_priv *priv;
|
|
|
|
if (hw == NULL || hw->priv == NULL)
|
|
return -EINVAL;
|
|
priv = hw->priv;
|
|
|
|
priv->radio_short_preamble = short_preamble;
|
|
|
|
return mwl8k_cmd_802_11_radio_control(hw, 1, 1);
|
|
}
|
|
|
|
/*
|
|
* CMD_802_11_RF_TX_POWER.
|
|
*/
|
|
#define MWL8K_TX_POWER_LEVEL_TOTAL 8
|
|
|
|
struct mwl8k_cmd_802_11_rf_tx_power {
|
|
struct mwl8k_cmd_pkt header;
|
|
__le16 action;
|
|
__le16 support_level;
|
|
__le16 current_level;
|
|
__le16 reserved;
|
|
__le16 power_level_list[MWL8K_TX_POWER_LEVEL_TOTAL];
|
|
} __attribute__((packed));
|
|
|
|
static int mwl8k_cmd_802_11_rf_tx_power(struct ieee80211_hw *hw, int dBm)
|
|
{
|
|
struct mwl8k_cmd_802_11_rf_tx_power *cmd;
|
|
int rc;
|
|
|
|
cmd = kzalloc(sizeof(*cmd), GFP_KERNEL);
|
|
if (cmd == NULL)
|
|
return -ENOMEM;
|
|
|
|
cmd->header.code = cpu_to_le16(MWL8K_CMD_RF_TX_POWER);
|
|
cmd->header.length = cpu_to_le16(sizeof(*cmd));
|
|
cmd->action = cpu_to_le16(MWL8K_CMD_SET);
|
|
cmd->support_level = cpu_to_le16(dBm);
|
|
|
|
rc = mwl8k_post_cmd(hw, &cmd->header);
|
|
kfree(cmd);
|
|
|
|
return rc;
|
|
}
|
|
|
|
/*
|
|
* CMD_SET_PRE_SCAN.
|
|
*/
|
|
struct mwl8k_cmd_set_pre_scan {
|
|
struct mwl8k_cmd_pkt header;
|
|
} __attribute__((packed));
|
|
|
|
static int mwl8k_cmd_set_pre_scan(struct ieee80211_hw *hw)
|
|
{
|
|
struct mwl8k_cmd_set_pre_scan *cmd;
|
|
int rc;
|
|
|
|
cmd = kzalloc(sizeof(*cmd), GFP_KERNEL);
|
|
if (cmd == NULL)
|
|
return -ENOMEM;
|
|
|
|
cmd->header.code = cpu_to_le16(MWL8K_CMD_SET_PRE_SCAN);
|
|
cmd->header.length = cpu_to_le16(sizeof(*cmd));
|
|
|
|
rc = mwl8k_post_cmd(hw, &cmd->header);
|
|
kfree(cmd);
|
|
|
|
return rc;
|
|
}
|
|
|
|
/*
|
|
* CMD_SET_POST_SCAN.
|
|
*/
|
|
struct mwl8k_cmd_set_post_scan {
|
|
struct mwl8k_cmd_pkt header;
|
|
__le32 isibss;
|
|
__u8 bssid[ETH_ALEN];
|
|
} __attribute__((packed));
|
|
|
|
static int
|
|
mwl8k_cmd_set_post_scan(struct ieee80211_hw *hw, __u8 *mac)
|
|
{
|
|
struct mwl8k_cmd_set_post_scan *cmd;
|
|
int rc;
|
|
|
|
cmd = kzalloc(sizeof(*cmd), GFP_KERNEL);
|
|
if (cmd == NULL)
|
|
return -ENOMEM;
|
|
|
|
cmd->header.code = cpu_to_le16(MWL8K_CMD_SET_POST_SCAN);
|
|
cmd->header.length = cpu_to_le16(sizeof(*cmd));
|
|
cmd->isibss = 0;
|
|
memcpy(cmd->bssid, mac, ETH_ALEN);
|
|
|
|
rc = mwl8k_post_cmd(hw, &cmd->header);
|
|
kfree(cmd);
|
|
|
|
return rc;
|
|
}
|
|
|
|
/*
|
|
* CMD_SET_RF_CHANNEL.
|
|
*/
|
|
struct mwl8k_cmd_set_rf_channel {
|
|
struct mwl8k_cmd_pkt header;
|
|
__le16 action;
|
|
__u8 current_channel;
|
|
__le32 channel_flags;
|
|
} __attribute__((packed));
|
|
|
|
static int mwl8k_cmd_set_rf_channel(struct ieee80211_hw *hw,
|
|
struct ieee80211_channel *channel)
|
|
{
|
|
struct mwl8k_cmd_set_rf_channel *cmd;
|
|
int rc;
|
|
|
|
cmd = kzalloc(sizeof(*cmd), GFP_KERNEL);
|
|
if (cmd == NULL)
|
|
return -ENOMEM;
|
|
|
|
cmd->header.code = cpu_to_le16(MWL8K_CMD_SET_RF_CHANNEL);
|
|
cmd->header.length = cpu_to_le16(sizeof(*cmd));
|
|
cmd->action = cpu_to_le16(MWL8K_CMD_SET);
|
|
cmd->current_channel = channel->hw_value;
|
|
if (channel->band == IEEE80211_BAND_2GHZ)
|
|
cmd->channel_flags = cpu_to_le32(0x00000081);
|
|
else
|
|
cmd->channel_flags = cpu_to_le32(0x00000000);
|
|
|
|
rc = mwl8k_post_cmd(hw, &cmd->header);
|
|
kfree(cmd);
|
|
|
|
return rc;
|
|
}
|
|
|
|
/*
|
|
* CMD_SET_SLOT.
|
|
*/
|
|
struct mwl8k_cmd_set_slot {
|
|
struct mwl8k_cmd_pkt header;
|
|
__le16 action;
|
|
__u8 short_slot;
|
|
} __attribute__((packed));
|
|
|
|
static int mwl8k_cmd_set_slot(struct ieee80211_hw *hw, bool short_slot_time)
|
|
{
|
|
struct mwl8k_cmd_set_slot *cmd;
|
|
int rc;
|
|
|
|
cmd = kzalloc(sizeof(*cmd), GFP_KERNEL);
|
|
if (cmd == NULL)
|
|
return -ENOMEM;
|
|
|
|
cmd->header.code = cpu_to_le16(MWL8K_CMD_SET_SLOT);
|
|
cmd->header.length = cpu_to_le16(sizeof(*cmd));
|
|
cmd->action = cpu_to_le16(MWL8K_CMD_SET);
|
|
cmd->short_slot = short_slot_time;
|
|
|
|
rc = mwl8k_post_cmd(hw, &cmd->header);
|
|
kfree(cmd);
|
|
|
|
return rc;
|
|
}
|
|
|
|
/*
|
|
* CMD_MIMO_CONFIG.
|
|
*/
|
|
struct mwl8k_cmd_mimo_config {
|
|
struct mwl8k_cmd_pkt header;
|
|
__le32 action;
|
|
__u8 rx_antenna_map;
|
|
__u8 tx_antenna_map;
|
|
} __attribute__((packed));
|
|
|
|
static int mwl8k_cmd_mimo_config(struct ieee80211_hw *hw, __u8 rx, __u8 tx)
|
|
{
|
|
struct mwl8k_cmd_mimo_config *cmd;
|
|
int rc;
|
|
|
|
cmd = kzalloc(sizeof(*cmd), GFP_KERNEL);
|
|
if (cmd == NULL)
|
|
return -ENOMEM;
|
|
|
|
cmd->header.code = cpu_to_le16(MWL8K_CMD_MIMO_CONFIG);
|
|
cmd->header.length = cpu_to_le16(sizeof(*cmd));
|
|
cmd->action = cpu_to_le32((u32)MWL8K_CMD_SET);
|
|
cmd->rx_antenna_map = rx;
|
|
cmd->tx_antenna_map = tx;
|
|
|
|
rc = mwl8k_post_cmd(hw, &cmd->header);
|
|
kfree(cmd);
|
|
|
|
return rc;
|
|
}
|
|
|
|
/*
|
|
* CMD_ENABLE_SNIFFER.
|
|
*/
|
|
struct mwl8k_cmd_enable_sniffer {
|
|
struct mwl8k_cmd_pkt header;
|
|
__le32 action;
|
|
} __attribute__((packed));
|
|
|
|
static int mwl8k_enable_sniffer(struct ieee80211_hw *hw, bool enable)
|
|
{
|
|
struct mwl8k_cmd_enable_sniffer *cmd;
|
|
int rc;
|
|
|
|
cmd = kzalloc(sizeof(*cmd), GFP_KERNEL);
|
|
if (cmd == NULL)
|
|
return -ENOMEM;
|
|
|
|
cmd->header.code = cpu_to_le16(MWL8K_CMD_ENABLE_SNIFFER);
|
|
cmd->header.length = cpu_to_le16(sizeof(*cmd));
|
|
cmd->action = cpu_to_le32(!!enable);
|
|
|
|
rc = mwl8k_post_cmd(hw, &cmd->header);
|
|
kfree(cmd);
|
|
|
|
return rc;
|
|
}
|
|
|
|
/*
|
|
* CMD_SET_MAC_ADDR.
|
|
*/
|
|
struct mwl8k_cmd_set_mac_addr {
|
|
struct mwl8k_cmd_pkt header;
|
|
__u8 mac_addr[ETH_ALEN];
|
|
} __attribute__((packed));
|
|
|
|
static int mwl8k_set_mac_addr(struct ieee80211_hw *hw, u8 *mac)
|
|
{
|
|
struct mwl8k_cmd_set_mac_addr *cmd;
|
|
int rc;
|
|
|
|
cmd = kzalloc(sizeof(*cmd), GFP_KERNEL);
|
|
if (cmd == NULL)
|
|
return -ENOMEM;
|
|
|
|
cmd->header.code = cpu_to_le16(MWL8K_CMD_SET_MAC_ADDR);
|
|
cmd->header.length = cpu_to_le16(sizeof(*cmd));
|
|
memcpy(cmd->mac_addr, mac, ETH_ALEN);
|
|
|
|
rc = mwl8k_post_cmd(hw, &cmd->header);
|
|
kfree(cmd);
|
|
|
|
return rc;
|
|
}
|
|
|
|
|
|
/*
|
|
* CMD_SET_RATEADAPT_MODE.
|
|
*/
|
|
struct mwl8k_cmd_set_rate_adapt_mode {
|
|
struct mwl8k_cmd_pkt header;
|
|
__le16 action;
|
|
__le16 mode;
|
|
} __attribute__((packed));
|
|
|
|
static int mwl8k_cmd_setrateadaptmode(struct ieee80211_hw *hw, __u16 mode)
|
|
{
|
|
struct mwl8k_cmd_set_rate_adapt_mode *cmd;
|
|
int rc;
|
|
|
|
cmd = kzalloc(sizeof(*cmd), GFP_KERNEL);
|
|
if (cmd == NULL)
|
|
return -ENOMEM;
|
|
|
|
cmd->header.code = cpu_to_le16(MWL8K_CMD_SET_RATEADAPT_MODE);
|
|
cmd->header.length = cpu_to_le16(sizeof(*cmd));
|
|
cmd->action = cpu_to_le16(MWL8K_CMD_SET);
|
|
cmd->mode = cpu_to_le16(mode);
|
|
|
|
rc = mwl8k_post_cmd(hw, &cmd->header);
|
|
kfree(cmd);
|
|
|
|
return rc;
|
|
}
|
|
|
|
/*
|
|
* CMD_SET_WMM_MODE.
|
|
*/
|
|
struct mwl8k_cmd_set_wmm {
|
|
struct mwl8k_cmd_pkt header;
|
|
__le16 action;
|
|
} __attribute__((packed));
|
|
|
|
static int mwl8k_set_wmm(struct ieee80211_hw *hw, bool enable)
|
|
{
|
|
struct mwl8k_priv *priv = hw->priv;
|
|
struct mwl8k_cmd_set_wmm *cmd;
|
|
int rc;
|
|
|
|
cmd = kzalloc(sizeof(*cmd), GFP_KERNEL);
|
|
if (cmd == NULL)
|
|
return -ENOMEM;
|
|
|
|
cmd->header.code = cpu_to_le16(MWL8K_CMD_SET_WMM_MODE);
|
|
cmd->header.length = cpu_to_le16(sizeof(*cmd));
|
|
cmd->action = cpu_to_le16(!!enable);
|
|
|
|
rc = mwl8k_post_cmd(hw, &cmd->header);
|
|
kfree(cmd);
|
|
|
|
if (!rc)
|
|
priv->wmm_enabled = enable;
|
|
|
|
return rc;
|
|
}
|
|
|
|
/*
|
|
* CMD_SET_RTS_THRESHOLD.
|
|
*/
|
|
struct mwl8k_cmd_rts_threshold {
|
|
struct mwl8k_cmd_pkt header;
|
|
__le16 action;
|
|
__le16 threshold;
|
|
} __attribute__((packed));
|
|
|
|
static int mwl8k_rts_threshold(struct ieee80211_hw *hw,
|
|
u16 action, u16 threshold)
|
|
{
|
|
struct mwl8k_cmd_rts_threshold *cmd;
|
|
int rc;
|
|
|
|
cmd = kzalloc(sizeof(*cmd), GFP_KERNEL);
|
|
if (cmd == NULL)
|
|
return -ENOMEM;
|
|
|
|
cmd->header.code = cpu_to_le16(MWL8K_CMD_RTS_THRESHOLD);
|
|
cmd->header.length = cpu_to_le16(sizeof(*cmd));
|
|
cmd->action = cpu_to_le16(action);
|
|
cmd->threshold = cpu_to_le16(threshold);
|
|
|
|
rc = mwl8k_post_cmd(hw, &cmd->header);
|
|
kfree(cmd);
|
|
|
|
return rc;
|
|
}
|
|
|
|
/*
|
|
* CMD_SET_EDCA_PARAMS.
|
|
*/
|
|
struct mwl8k_cmd_set_edca_params {
|
|
struct mwl8k_cmd_pkt header;
|
|
|
|
/* See MWL8K_SET_EDCA_XXX below */
|
|
__le16 action;
|
|
|
|
/* TX opportunity in units of 32 us */
|
|
__le16 txop;
|
|
|
|
/* Log exponent of max contention period: 0...15*/
|
|
__u8 log_cw_max;
|
|
|
|
/* Log exponent of min contention period: 0...15 */
|
|
__u8 log_cw_min;
|
|
|
|
/* Adaptive interframe spacing in units of 32us */
|
|
__u8 aifs;
|
|
|
|
/* TX queue to configure */
|
|
__u8 txq;
|
|
} __attribute__((packed));
|
|
|
|
#define MWL8K_SET_EDCA_CW 0x01
|
|
#define MWL8K_SET_EDCA_TXOP 0x02
|
|
#define MWL8K_SET_EDCA_AIFS 0x04
|
|
|
|
#define MWL8K_SET_EDCA_ALL (MWL8K_SET_EDCA_CW | \
|
|
MWL8K_SET_EDCA_TXOP | \
|
|
MWL8K_SET_EDCA_AIFS)
|
|
|
|
static int
|
|
mwl8k_set_edca_params(struct ieee80211_hw *hw, __u8 qnum,
|
|
__u16 cw_min, __u16 cw_max,
|
|
__u8 aifs, __u16 txop)
|
|
{
|
|
struct mwl8k_cmd_set_edca_params *cmd;
|
|
int rc;
|
|
|
|
cmd = kzalloc(sizeof(*cmd), GFP_KERNEL);
|
|
if (cmd == NULL)
|
|
return -ENOMEM;
|
|
|
|
/*
|
|
* Queues 0 (BE) and 1 (BK) are swapped in hardware for
|
|
* this call.
|
|
*/
|
|
qnum ^= !(qnum >> 1);
|
|
|
|
cmd->header.code = cpu_to_le16(MWL8K_CMD_SET_EDCA_PARAMS);
|
|
cmd->header.length = cpu_to_le16(sizeof(*cmd));
|
|
cmd->action = cpu_to_le16(MWL8K_SET_EDCA_ALL);
|
|
cmd->txop = cpu_to_le16(txop);
|
|
cmd->log_cw_max = (u8)ilog2(cw_max + 1);
|
|
cmd->log_cw_min = (u8)ilog2(cw_min + 1);
|
|
cmd->aifs = aifs;
|
|
cmd->txq = qnum;
|
|
|
|
rc = mwl8k_post_cmd(hw, &cmd->header);
|
|
kfree(cmd);
|
|
|
|
return rc;
|
|
}
|
|
|
|
/*
|
|
* CMD_FINALIZE_JOIN.
|
|
*/
|
|
|
|
/* FJ beacon buffer size is compiled into the firmware. */
|
|
#define MWL8K_FJ_BEACON_MAXLEN 128
|
|
|
|
struct mwl8k_cmd_finalize_join {
|
|
struct mwl8k_cmd_pkt header;
|
|
__le32 sleep_interval; /* Number of beacon periods to sleep */
|
|
__u8 beacon_data[MWL8K_FJ_BEACON_MAXLEN];
|
|
} __attribute__((packed));
|
|
|
|
static int mwl8k_finalize_join(struct ieee80211_hw *hw, void *frame,
|
|
__u16 framelen, __u16 dtim)
|
|
{
|
|
struct mwl8k_cmd_finalize_join *cmd;
|
|
struct ieee80211_mgmt *payload = frame;
|
|
u16 hdrlen;
|
|
u32 payload_len;
|
|
int rc;
|
|
|
|
if (frame == NULL)
|
|
return -EINVAL;
|
|
|
|
cmd = kzalloc(sizeof(*cmd), GFP_KERNEL);
|
|
if (cmd == NULL)
|
|
return -ENOMEM;
|
|
|
|
cmd->header.code = cpu_to_le16(MWL8K_CMD_SET_FINALIZE_JOIN);
|
|
cmd->header.length = cpu_to_le16(sizeof(*cmd));
|
|
cmd->sleep_interval = cpu_to_le32(dtim ? dtim : 1);
|
|
|
|
hdrlen = ieee80211_hdrlen(payload->frame_control);
|
|
|
|
payload_len = framelen > hdrlen ? framelen - hdrlen : 0;
|
|
|
|
/* XXX TBD Might just have to abort and return an error */
|
|
if (payload_len > MWL8K_FJ_BEACON_MAXLEN)
|
|
printk(KERN_ERR "%s(): WARNING: Incomplete beacon "
|
|
"sent to firmware. Sz=%u MAX=%u\n", __func__,
|
|
payload_len, MWL8K_FJ_BEACON_MAXLEN);
|
|
|
|
if (payload_len > MWL8K_FJ_BEACON_MAXLEN)
|
|
payload_len = MWL8K_FJ_BEACON_MAXLEN;
|
|
|
|
if (payload && payload_len)
|
|
memcpy(cmd->beacon_data, &payload->u.beacon, payload_len);
|
|
|
|
rc = mwl8k_post_cmd(hw, &cmd->header);
|
|
kfree(cmd);
|
|
return rc;
|
|
}
|
|
|
|
/*
|
|
* CMD_UPDATE_STADB.
|
|
*/
|
|
struct mwl8k_cmd_update_sta_db {
|
|
struct mwl8k_cmd_pkt header;
|
|
|
|
/* See STADB_ACTION_TYPE */
|
|
__le32 action;
|
|
|
|
/* Peer MAC address */
|
|
__u8 peer_addr[ETH_ALEN];
|
|
|
|
__le32 reserved;
|
|
|
|
/* Peer info - valid during add/update. */
|
|
struct peer_capability_info peer_info;
|
|
} __attribute__((packed));
|
|
|
|
static int mwl8k_cmd_update_sta_db(struct ieee80211_hw *hw,
|
|
struct ieee80211_vif *vif, __u32 action)
|
|
{
|
|
struct mwl8k_vif *mv_vif = MWL8K_VIF(vif);
|
|
struct ieee80211_bss_conf *info = &mv_vif->bss_info;
|
|
struct mwl8k_cmd_update_sta_db *cmd;
|
|
struct peer_capability_info *peer_info;
|
|
struct ieee80211_rate *bitrates = mv_vif->legacy_rates;
|
|
int rc;
|
|
__u8 count, *rates;
|
|
|
|
cmd = kzalloc(sizeof(*cmd), GFP_KERNEL);
|
|
if (cmd == NULL)
|
|
return -ENOMEM;
|
|
|
|
cmd->header.code = cpu_to_le16(MWL8K_CMD_UPDATE_STADB);
|
|
cmd->header.length = cpu_to_le16(sizeof(*cmd));
|
|
|
|
cmd->action = cpu_to_le32(action);
|
|
peer_info = &cmd->peer_info;
|
|
memcpy(cmd->peer_addr, mv_vif->bssid, ETH_ALEN);
|
|
|
|
switch (action) {
|
|
case MWL8K_STA_DB_ADD_ENTRY:
|
|
case MWL8K_STA_DB_MODIFY_ENTRY:
|
|
/* Build peer_info block */
|
|
peer_info->peer_type = MWL8K_PEER_TYPE_ACCESSPOINT;
|
|
peer_info->basic_caps = cpu_to_le16(info->assoc_capability);
|
|
peer_info->interop = 1;
|
|
peer_info->amsdu_enabled = 0;
|
|
|
|
rates = peer_info->legacy_rates;
|
|
for (count = 0; count < mv_vif->legacy_nrates; count++)
|
|
rates[count] = bitrates[count].hw_value;
|
|
|
|
rc = mwl8k_post_cmd(hw, &cmd->header);
|
|
if (rc == 0)
|
|
mv_vif->peer_id = peer_info->station_id;
|
|
|
|
break;
|
|
|
|
case MWL8K_STA_DB_DEL_ENTRY:
|
|
case MWL8K_STA_DB_FLUSH:
|
|
default:
|
|
rc = mwl8k_post_cmd(hw, &cmd->header);
|
|
if (rc == 0)
|
|
mv_vif->peer_id = 0;
|
|
break;
|
|
}
|
|
kfree(cmd);
|
|
|
|
return rc;
|
|
}
|
|
|
|
/*
|
|
* CMD_SET_AID.
|
|
*/
|
|
#define MWL8K_RATE_INDEX_MAX_ARRAY 14
|
|
|
|
#define MWL8K_FRAME_PROT_DISABLED 0x00
|
|
#define MWL8K_FRAME_PROT_11G 0x07
|
|
#define MWL8K_FRAME_PROT_11N_HT_40MHZ_ONLY 0x02
|
|
#define MWL8K_FRAME_PROT_11N_HT_ALL 0x06
|
|
|
|
struct mwl8k_cmd_update_set_aid {
|
|
struct mwl8k_cmd_pkt header;
|
|
__le16 aid;
|
|
|
|
/* AP's MAC address (BSSID) */
|
|
__u8 bssid[ETH_ALEN];
|
|
__le16 protection_mode;
|
|
__u8 supp_rates[MWL8K_RATE_INDEX_MAX_ARRAY];
|
|
} __attribute__((packed));
|
|
|
|
static int mwl8k_cmd_set_aid(struct ieee80211_hw *hw,
|
|
struct ieee80211_vif *vif)
|
|
{
|
|
struct mwl8k_vif *mv_vif = MWL8K_VIF(vif);
|
|
struct ieee80211_bss_conf *info = &mv_vif->bss_info;
|
|
struct mwl8k_cmd_update_set_aid *cmd;
|
|
struct ieee80211_rate *bitrates = mv_vif->legacy_rates;
|
|
int count;
|
|
u16 prot_mode;
|
|
int rc;
|
|
|
|
cmd = kzalloc(sizeof(*cmd), GFP_KERNEL);
|
|
if (cmd == NULL)
|
|
return -ENOMEM;
|
|
|
|
cmd->header.code = cpu_to_le16(MWL8K_CMD_SET_AID);
|
|
cmd->header.length = cpu_to_le16(sizeof(*cmd));
|
|
cmd->aid = cpu_to_le16(info->aid);
|
|
|
|
memcpy(cmd->bssid, mv_vif->bssid, ETH_ALEN);
|
|
|
|
if (info->use_cts_prot) {
|
|
prot_mode = MWL8K_FRAME_PROT_11G;
|
|
} else {
|
|
switch (info->ht_operation_mode &
|
|
IEEE80211_HT_OP_MODE_PROTECTION) {
|
|
case IEEE80211_HT_OP_MODE_PROTECTION_20MHZ:
|
|
prot_mode = MWL8K_FRAME_PROT_11N_HT_40MHZ_ONLY;
|
|
break;
|
|
case IEEE80211_HT_OP_MODE_PROTECTION_NONHT_MIXED:
|
|
prot_mode = MWL8K_FRAME_PROT_11N_HT_ALL;
|
|
break;
|
|
default:
|
|
prot_mode = MWL8K_FRAME_PROT_DISABLED;
|
|
break;
|
|
}
|
|
}
|
|
cmd->protection_mode = cpu_to_le16(prot_mode);
|
|
|
|
for (count = 0; count < mv_vif->legacy_nrates; count++)
|
|
cmd->supp_rates[count] = bitrates[count].hw_value;
|
|
|
|
rc = mwl8k_post_cmd(hw, &cmd->header);
|
|
kfree(cmd);
|
|
|
|
return rc;
|
|
}
|
|
|
|
/*
|
|
* CMD_SET_RATE.
|
|
*/
|
|
struct mwl8k_cmd_update_rateset {
|
|
struct mwl8k_cmd_pkt header;
|
|
__u8 legacy_rates[MWL8K_RATE_INDEX_MAX_ARRAY];
|
|
|
|
/* Bitmap for supported MCS codes. */
|
|
__u8 mcs_set[MWL8K_IEEE_LEGACY_DATA_RATES];
|
|
__u8 reserved[MWL8K_IEEE_LEGACY_DATA_RATES];
|
|
} __attribute__((packed));
|
|
|
|
static int mwl8k_update_rateset(struct ieee80211_hw *hw,
|
|
struct ieee80211_vif *vif)
|
|
{
|
|
struct mwl8k_vif *mv_vif = MWL8K_VIF(vif);
|
|
struct mwl8k_cmd_update_rateset *cmd;
|
|
struct ieee80211_rate *bitrates = mv_vif->legacy_rates;
|
|
int count;
|
|
int rc;
|
|
|
|
cmd = kzalloc(sizeof(*cmd), GFP_KERNEL);
|
|
if (cmd == NULL)
|
|
return -ENOMEM;
|
|
|
|
cmd->header.code = cpu_to_le16(MWL8K_CMD_SET_RATE);
|
|
cmd->header.length = cpu_to_le16(sizeof(*cmd));
|
|
|
|
for (count = 0; count < mv_vif->legacy_nrates; count++)
|
|
cmd->legacy_rates[count] = bitrates[count].hw_value;
|
|
|
|
rc = mwl8k_post_cmd(hw, &cmd->header);
|
|
kfree(cmd);
|
|
|
|
return rc;
|
|
}
|
|
|
|
/*
|
|
* CMD_USE_FIXED_RATE.
|
|
*/
|
|
#define MWL8K_RATE_TABLE_SIZE 8
|
|
#define MWL8K_UCAST_RATE 0
|
|
#define MWL8K_USE_AUTO_RATE 0x0002
|
|
|
|
struct mwl8k_rate_entry {
|
|
/* Set to 1 if HT rate, 0 if legacy. */
|
|
__le32 is_ht_rate;
|
|
|
|
/* Set to 1 to use retry_count field. */
|
|
__le32 enable_retry;
|
|
|
|
/* Specified legacy rate or MCS. */
|
|
__le32 rate;
|
|
|
|
/* Number of allowed retries. */
|
|
__le32 retry_count;
|
|
} __attribute__((packed));
|
|
|
|
struct mwl8k_rate_table {
|
|
/* 1 to allow specified rate and below */
|
|
__le32 allow_rate_drop;
|
|
__le32 num_rates;
|
|
struct mwl8k_rate_entry rate_entry[MWL8K_RATE_TABLE_SIZE];
|
|
} __attribute__((packed));
|
|
|
|
struct mwl8k_cmd_use_fixed_rate {
|
|
struct mwl8k_cmd_pkt header;
|
|
__le32 action;
|
|
struct mwl8k_rate_table rate_table;
|
|
|
|
/* Unicast, Broadcast or Multicast */
|
|
__le32 rate_type;
|
|
__le32 reserved1;
|
|
__le32 reserved2;
|
|
} __attribute__((packed));
|
|
|
|
static int mwl8k_cmd_use_fixed_rate(struct ieee80211_hw *hw,
|
|
u32 action, u32 rate_type, struct mwl8k_rate_table *rate_table)
|
|
{
|
|
struct mwl8k_cmd_use_fixed_rate *cmd;
|
|
int count;
|
|
int rc;
|
|
|
|
cmd = kzalloc(sizeof(*cmd), GFP_KERNEL);
|
|
if (cmd == NULL)
|
|
return -ENOMEM;
|
|
|
|
cmd->header.code = cpu_to_le16(MWL8K_CMD_USE_FIXED_RATE);
|
|
cmd->header.length = cpu_to_le16(sizeof(*cmd));
|
|
|
|
cmd->action = cpu_to_le32(action);
|
|
cmd->rate_type = cpu_to_le32(rate_type);
|
|
|
|
if (rate_table != NULL) {
|
|
/*
|
|
* Copy over each field manually so that endian
|
|
* conversion can be done.
|
|
*/
|
|
cmd->rate_table.allow_rate_drop =
|
|
cpu_to_le32(rate_table->allow_rate_drop);
|
|
cmd->rate_table.num_rates =
|
|
cpu_to_le32(rate_table->num_rates);
|
|
|
|
for (count = 0; count < rate_table->num_rates; count++) {
|
|
struct mwl8k_rate_entry *dst =
|
|
&cmd->rate_table.rate_entry[count];
|
|
struct mwl8k_rate_entry *src =
|
|
&rate_table->rate_entry[count];
|
|
|
|
dst->is_ht_rate = cpu_to_le32(src->is_ht_rate);
|
|
dst->enable_retry = cpu_to_le32(src->enable_retry);
|
|
dst->rate = cpu_to_le32(src->rate);
|
|
dst->retry_count = cpu_to_le32(src->retry_count);
|
|
}
|
|
}
|
|
|
|
rc = mwl8k_post_cmd(hw, &cmd->header);
|
|
kfree(cmd);
|
|
|
|
return rc;
|
|
}
|
|
|
|
|
|
/*
|
|
* Interrupt handling.
|
|
*/
|
|
static irqreturn_t mwl8k_interrupt(int irq, void *dev_id)
|
|
{
|
|
struct ieee80211_hw *hw = dev_id;
|
|
struct mwl8k_priv *priv = hw->priv;
|
|
u32 status;
|
|
|
|
status = ioread32(priv->regs + MWL8K_HIU_A2H_INTERRUPT_STATUS);
|
|
iowrite32(~status, priv->regs + MWL8K_HIU_A2H_INTERRUPT_STATUS);
|
|
|
|
if (!status)
|
|
return IRQ_NONE;
|
|
|
|
if (status & MWL8K_A2H_INT_TX_DONE)
|
|
tasklet_schedule(&priv->tx_reclaim_task);
|
|
|
|
if (status & MWL8K_A2H_INT_RX_READY) {
|
|
while (rxq_process(hw, 0, 1))
|
|
rxq_refill(hw, 0, 1);
|
|
}
|
|
|
|
if (status & MWL8K_A2H_INT_OPC_DONE) {
|
|
if (priv->hostcmd_wait != NULL)
|
|
complete(priv->hostcmd_wait);
|
|
}
|
|
|
|
if (status & MWL8K_A2H_INT_QUEUE_EMPTY) {
|
|
if (!mutex_is_locked(&priv->fw_mutex) &&
|
|
priv->radio_on && priv->pending_tx_pkts)
|
|
mwl8k_tx_start(priv);
|
|
}
|
|
|
|
return IRQ_HANDLED;
|
|
}
|
|
|
|
|
|
/*
|
|
* Core driver operations.
|
|
*/
|
|
static int mwl8k_tx(struct ieee80211_hw *hw, struct sk_buff *skb)
|
|
{
|
|
struct mwl8k_priv *priv = hw->priv;
|
|
int index = skb_get_queue_mapping(skb);
|
|
int rc;
|
|
|
|
if (priv->current_channel == NULL) {
|
|
printk(KERN_DEBUG "%s: dropped TX frame since radio "
|
|
"disabled\n", wiphy_name(hw->wiphy));
|
|
dev_kfree_skb(skb);
|
|
return NETDEV_TX_OK;
|
|
}
|
|
|
|
rc = mwl8k_txq_xmit(hw, index, skb);
|
|
|
|
return rc;
|
|
}
|
|
|
|
static int mwl8k_start(struct ieee80211_hw *hw)
|
|
{
|
|
struct mwl8k_priv *priv = hw->priv;
|
|
int rc;
|
|
|
|
rc = request_irq(priv->pdev->irq, &mwl8k_interrupt,
|
|
IRQF_SHARED, MWL8K_NAME, hw);
|
|
if (rc) {
|
|
printk(KERN_ERR "%s: failed to register IRQ handler\n",
|
|
wiphy_name(hw->wiphy));
|
|
return -EIO;
|
|
}
|
|
|
|
/* Enable tx reclaim tasklet */
|
|
tasklet_enable(&priv->tx_reclaim_task);
|
|
|
|
/* Enable interrupts */
|
|
iowrite32(MWL8K_A2H_EVENTS, priv->regs + MWL8K_HIU_A2H_INTERRUPT_MASK);
|
|
|
|
rc = mwl8k_fw_lock(hw);
|
|
if (!rc) {
|
|
rc = mwl8k_cmd_802_11_radio_enable(hw);
|
|
|
|
if (!rc)
|
|
rc = mwl8k_cmd_set_pre_scan(hw);
|
|
|
|
if (!rc)
|
|
rc = mwl8k_cmd_set_post_scan(hw,
|
|
"\x00\x00\x00\x00\x00\x00");
|
|
|
|
if (!rc)
|
|
rc = mwl8k_cmd_setrateadaptmode(hw, 0);
|
|
|
|
if (!rc)
|
|
rc = mwl8k_set_wmm(hw, 0);
|
|
|
|
if (!rc)
|
|
rc = mwl8k_enable_sniffer(hw, 0);
|
|
|
|
mwl8k_fw_unlock(hw);
|
|
}
|
|
|
|
if (rc) {
|
|
iowrite32(0, priv->regs + MWL8K_HIU_A2H_INTERRUPT_MASK);
|
|
free_irq(priv->pdev->irq, hw);
|
|
tasklet_disable(&priv->tx_reclaim_task);
|
|
}
|
|
|
|
return rc;
|
|
}
|
|
|
|
static void mwl8k_stop(struct ieee80211_hw *hw)
|
|
{
|
|
struct mwl8k_priv *priv = hw->priv;
|
|
int i;
|
|
|
|
mwl8k_cmd_802_11_radio_disable(hw);
|
|
|
|
ieee80211_stop_queues(hw);
|
|
|
|
/* Disable interrupts */
|
|
iowrite32(0, priv->regs + MWL8K_HIU_A2H_INTERRUPT_MASK);
|
|
free_irq(priv->pdev->irq, hw);
|
|
|
|
/* Stop finalize join worker */
|
|
cancel_work_sync(&priv->finalize_join_worker);
|
|
if (priv->beacon_skb != NULL)
|
|
dev_kfree_skb(priv->beacon_skb);
|
|
|
|
/* Stop tx reclaim tasklet */
|
|
tasklet_disable(&priv->tx_reclaim_task);
|
|
|
|
/* Return all skbs to mac80211 */
|
|
for (i = 0; i < MWL8K_TX_QUEUES; i++)
|
|
mwl8k_txq_reclaim(hw, i, 1);
|
|
}
|
|
|
|
static int mwl8k_add_interface(struct ieee80211_hw *hw,
|
|
struct ieee80211_if_init_conf *conf)
|
|
{
|
|
struct mwl8k_priv *priv = hw->priv;
|
|
struct mwl8k_vif *mwl8k_vif;
|
|
|
|
/*
|
|
* We only support one active interface at a time.
|
|
*/
|
|
if (priv->vif != NULL)
|
|
return -EBUSY;
|
|
|
|
/*
|
|
* We only support managed interfaces for now.
|
|
*/
|
|
if (conf->type != NL80211_IFTYPE_STATION)
|
|
return -EINVAL;
|
|
|
|
/*
|
|
* Reject interface creation if sniffer mode is active, as
|
|
* STA operation is mutually exclusive with hardware sniffer
|
|
* mode.
|
|
*/
|
|
if (priv->sniffer_enabled) {
|
|
printk(KERN_INFO "%s: unable to create STA "
|
|
"interface due to sniffer mode being enabled\n",
|
|
wiphy_name(hw->wiphy));
|
|
return -EINVAL;
|
|
}
|
|
|
|
/* Clean out driver private area */
|
|
mwl8k_vif = MWL8K_VIF(conf->vif);
|
|
memset(mwl8k_vif, 0, sizeof(*mwl8k_vif));
|
|
|
|
/* Set and save the mac address */
|
|
mwl8k_set_mac_addr(hw, conf->mac_addr);
|
|
memcpy(mwl8k_vif->mac_addr, conf->mac_addr, ETH_ALEN);
|
|
|
|
/* Back pointer to parent config block */
|
|
mwl8k_vif->priv = priv;
|
|
|
|
/* Setup initial PHY parameters */
|
|
memcpy(mwl8k_vif->legacy_rates,
|
|
priv->rates, sizeof(mwl8k_vif->legacy_rates));
|
|
mwl8k_vif->legacy_nrates = ARRAY_SIZE(priv->rates);
|
|
|
|
/* Set Initial sequence number to zero */
|
|
mwl8k_vif->seqno = 0;
|
|
|
|
priv->vif = conf->vif;
|
|
priv->current_channel = NULL;
|
|
|
|
return 0;
|
|
}
|
|
|
|
static void mwl8k_remove_interface(struct ieee80211_hw *hw,
|
|
struct ieee80211_if_init_conf *conf)
|
|
{
|
|
struct mwl8k_priv *priv = hw->priv;
|
|
|
|
if (priv->vif == NULL)
|
|
return;
|
|
|
|
mwl8k_set_mac_addr(hw, "\x00\x00\x00\x00\x00\x00");
|
|
|
|
priv->vif = NULL;
|
|
}
|
|
|
|
static int mwl8k_config(struct ieee80211_hw *hw, u32 changed)
|
|
{
|
|
struct ieee80211_conf *conf = &hw->conf;
|
|
struct mwl8k_priv *priv = hw->priv;
|
|
int rc;
|
|
|
|
if (conf->flags & IEEE80211_CONF_IDLE) {
|
|
mwl8k_cmd_802_11_radio_disable(hw);
|
|
priv->current_channel = NULL;
|
|
return 0;
|
|
}
|
|
|
|
rc = mwl8k_fw_lock(hw);
|
|
if (rc)
|
|
return rc;
|
|
|
|
rc = mwl8k_cmd_802_11_radio_enable(hw);
|
|
if (rc)
|
|
goto out;
|
|
|
|
rc = mwl8k_cmd_set_rf_channel(hw, conf->channel);
|
|
if (rc)
|
|
goto out;
|
|
|
|
priv->current_channel = conf->channel;
|
|
|
|
if (conf->power_level > 18)
|
|
conf->power_level = 18;
|
|
rc = mwl8k_cmd_802_11_rf_tx_power(hw, conf->power_level);
|
|
if (rc)
|
|
goto out;
|
|
|
|
if (mwl8k_cmd_mimo_config(hw, 0x7, 0x7))
|
|
rc = -EINVAL;
|
|
|
|
out:
|
|
mwl8k_fw_unlock(hw);
|
|
|
|
return rc;
|
|
}
|
|
|
|
static void mwl8k_bss_info_changed(struct ieee80211_hw *hw,
|
|
struct ieee80211_vif *vif,
|
|
struct ieee80211_bss_conf *info,
|
|
u32 changed)
|
|
{
|
|
struct mwl8k_priv *priv = hw->priv;
|
|
struct mwl8k_vif *mwl8k_vif = MWL8K_VIF(vif);
|
|
int rc;
|
|
|
|
if (changed & BSS_CHANGED_BSSID)
|
|
memcpy(mwl8k_vif->bssid, info->bssid, ETH_ALEN);
|
|
|
|
if ((changed & BSS_CHANGED_ASSOC) == 0)
|
|
return;
|
|
|
|
priv->capture_beacon = false;
|
|
|
|
rc = mwl8k_fw_lock(hw);
|
|
if (rc)
|
|
return;
|
|
|
|
if (info->assoc) {
|
|
memcpy(&mwl8k_vif->bss_info, info,
|
|
sizeof(struct ieee80211_bss_conf));
|
|
|
|
/* Install rates */
|
|
rc = mwl8k_update_rateset(hw, vif);
|
|
if (rc)
|
|
goto out;
|
|
|
|
/* Turn on rate adaptation */
|
|
rc = mwl8k_cmd_use_fixed_rate(hw, MWL8K_USE_AUTO_RATE,
|
|
MWL8K_UCAST_RATE, NULL);
|
|
if (rc)
|
|
goto out;
|
|
|
|
/* Set radio preamble */
|
|
rc = mwl8k_set_radio_preamble(hw, info->use_short_preamble);
|
|
if (rc)
|
|
goto out;
|
|
|
|
/* Set slot time */
|
|
rc = mwl8k_cmd_set_slot(hw, info->use_short_slot);
|
|
if (rc)
|
|
goto out;
|
|
|
|
/* Update peer rate info */
|
|
rc = mwl8k_cmd_update_sta_db(hw, vif,
|
|
MWL8K_STA_DB_MODIFY_ENTRY);
|
|
if (rc)
|
|
goto out;
|
|
|
|
/* Set AID */
|
|
rc = mwl8k_cmd_set_aid(hw, vif);
|
|
if (rc)
|
|
goto out;
|
|
|
|
/*
|
|
* Finalize the join. Tell rx handler to process
|
|
* next beacon from our BSSID.
|
|
*/
|
|
memcpy(priv->capture_bssid, mwl8k_vif->bssid, ETH_ALEN);
|
|
priv->capture_beacon = true;
|
|
} else {
|
|
rc = mwl8k_cmd_update_sta_db(hw, vif, MWL8K_STA_DB_DEL_ENTRY);
|
|
memset(&mwl8k_vif->bss_info, 0,
|
|
sizeof(struct ieee80211_bss_conf));
|
|
memset(mwl8k_vif->bssid, 0, ETH_ALEN);
|
|
}
|
|
|
|
out:
|
|
mwl8k_fw_unlock(hw);
|
|
}
|
|
|
|
static u64 mwl8k_prepare_multicast(struct ieee80211_hw *hw,
|
|
int mc_count, struct dev_addr_list *mclist)
|
|
{
|
|
struct mwl8k_cmd_pkt *cmd;
|
|
|
|
/*
|
|
* Synthesize and return a command packet that programs the
|
|
* hardware multicast address filter. At this point we don't
|
|
* know whether FIF_ALLMULTI is being requested, but if it is,
|
|
* we'll end up throwing this packet away and creating a new
|
|
* one in mwl8k_configure_filter().
|
|
*/
|
|
cmd = __mwl8k_cmd_mac_multicast_adr(hw, 0, mc_count, mclist);
|
|
|
|
return (unsigned long)cmd;
|
|
}
|
|
|
|
static int
|
|
mwl8k_configure_filter_sniffer(struct ieee80211_hw *hw,
|
|
unsigned int changed_flags,
|
|
unsigned int *total_flags)
|
|
{
|
|
struct mwl8k_priv *priv = hw->priv;
|
|
|
|
/*
|
|
* Hardware sniffer mode is mutually exclusive with STA
|
|
* operation, so refuse to enable sniffer mode if a STA
|
|
* interface is active.
|
|
*/
|
|
if (priv->vif != NULL) {
|
|
if (net_ratelimit())
|
|
printk(KERN_INFO "%s: not enabling sniffer "
|
|
"mode because STA interface is active\n",
|
|
wiphy_name(hw->wiphy));
|
|
return 0;
|
|
}
|
|
|
|
if (!priv->sniffer_enabled) {
|
|
if (mwl8k_enable_sniffer(hw, 1))
|
|
return 0;
|
|
priv->sniffer_enabled = true;
|
|
}
|
|
|
|
*total_flags &= FIF_PROMISC_IN_BSS | FIF_ALLMULTI |
|
|
FIF_BCN_PRBRESP_PROMISC | FIF_CONTROL |
|
|
FIF_OTHER_BSS;
|
|
|
|
return 1;
|
|
}
|
|
|
|
static void mwl8k_configure_filter(struct ieee80211_hw *hw,
|
|
unsigned int changed_flags,
|
|
unsigned int *total_flags,
|
|
u64 multicast)
|
|
{
|
|
struct mwl8k_priv *priv = hw->priv;
|
|
struct mwl8k_cmd_pkt *cmd = (void *)(unsigned long)multicast;
|
|
|
|
/*
|
|
* Enable hardware sniffer mode if FIF_CONTROL or
|
|
* FIF_OTHER_BSS is requested.
|
|
*/
|
|
if (*total_flags & (FIF_CONTROL | FIF_OTHER_BSS) &&
|
|
mwl8k_configure_filter_sniffer(hw, changed_flags, total_flags)) {
|
|
kfree(cmd);
|
|
return;
|
|
}
|
|
|
|
/* Clear unsupported feature flags */
|
|
*total_flags &= FIF_ALLMULTI | FIF_BCN_PRBRESP_PROMISC;
|
|
|
|
if (mwl8k_fw_lock(hw))
|
|
return;
|
|
|
|
if (priv->sniffer_enabled) {
|
|
mwl8k_enable_sniffer(hw, 0);
|
|
priv->sniffer_enabled = false;
|
|
}
|
|
|
|
if (changed_flags & FIF_BCN_PRBRESP_PROMISC) {
|
|
if (*total_flags & FIF_BCN_PRBRESP_PROMISC) {
|
|
/*
|
|
* Disable the BSS filter.
|
|
*/
|
|
mwl8k_cmd_set_pre_scan(hw);
|
|
} else {
|
|
u8 *bssid;
|
|
|
|
/*
|
|
* Enable the BSS filter.
|
|
*
|
|
* If there is an active STA interface, use that
|
|
* interface's BSSID, otherwise use a dummy one
|
|
* (where the OUI part needs to be nonzero for
|
|
* the BSSID to be accepted by POST_SCAN).
|
|
*/
|
|
bssid = "\x01\x00\x00\x00\x00\x00";
|
|
if (priv->vif != NULL)
|
|
bssid = MWL8K_VIF(priv->vif)->bssid;
|
|
|
|
mwl8k_cmd_set_post_scan(hw, bssid);
|
|
}
|
|
}
|
|
|
|
/*
|
|
* If FIF_ALLMULTI is being requested, throw away the command
|
|
* packet that ->prepare_multicast() built and replace it with
|
|
* a command packet that enables reception of all multicast
|
|
* packets.
|
|
*/
|
|
if (*total_flags & FIF_ALLMULTI) {
|
|
kfree(cmd);
|
|
cmd = __mwl8k_cmd_mac_multicast_adr(hw, 1, 0, NULL);
|
|
}
|
|
|
|
if (cmd != NULL) {
|
|
mwl8k_post_cmd(hw, cmd);
|
|
kfree(cmd);
|
|
}
|
|
|
|
mwl8k_fw_unlock(hw);
|
|
}
|
|
|
|
static int mwl8k_set_rts_threshold(struct ieee80211_hw *hw, u32 value)
|
|
{
|
|
return mwl8k_rts_threshold(hw, MWL8K_CMD_SET, value);
|
|
}
|
|
|
|
static int mwl8k_conf_tx(struct ieee80211_hw *hw, u16 queue,
|
|
const struct ieee80211_tx_queue_params *params)
|
|
{
|
|
struct mwl8k_priv *priv = hw->priv;
|
|
int rc;
|
|
|
|
rc = mwl8k_fw_lock(hw);
|
|
if (!rc) {
|
|
if (!priv->wmm_enabled)
|
|
rc = mwl8k_set_wmm(hw, 1);
|
|
|
|
if (!rc)
|
|
rc = mwl8k_set_edca_params(hw, queue,
|
|
params->cw_min,
|
|
params->cw_max,
|
|
params->aifs,
|
|
params->txop);
|
|
|
|
mwl8k_fw_unlock(hw);
|
|
}
|
|
|
|
return rc;
|
|
}
|
|
|
|
static int mwl8k_get_tx_stats(struct ieee80211_hw *hw,
|
|
struct ieee80211_tx_queue_stats *stats)
|
|
{
|
|
struct mwl8k_priv *priv = hw->priv;
|
|
struct mwl8k_tx_queue *txq;
|
|
int index;
|
|
|
|
spin_lock_bh(&priv->tx_lock);
|
|
for (index = 0; index < MWL8K_TX_QUEUES; index++) {
|
|
txq = priv->txq + index;
|
|
memcpy(&stats[index], &txq->stats,
|
|
sizeof(struct ieee80211_tx_queue_stats));
|
|
}
|
|
spin_unlock_bh(&priv->tx_lock);
|
|
|
|
return 0;
|
|
}
|
|
|
|
static int mwl8k_get_stats(struct ieee80211_hw *hw,
|
|
struct ieee80211_low_level_stats *stats)
|
|
{
|
|
return mwl8k_cmd_802_11_get_stat(hw, stats);
|
|
}
|
|
|
|
static const struct ieee80211_ops mwl8k_ops = {
|
|
.tx = mwl8k_tx,
|
|
.start = mwl8k_start,
|
|
.stop = mwl8k_stop,
|
|
.add_interface = mwl8k_add_interface,
|
|
.remove_interface = mwl8k_remove_interface,
|
|
.config = mwl8k_config,
|
|
.bss_info_changed = mwl8k_bss_info_changed,
|
|
.prepare_multicast = mwl8k_prepare_multicast,
|
|
.configure_filter = mwl8k_configure_filter,
|
|
.set_rts_threshold = mwl8k_set_rts_threshold,
|
|
.conf_tx = mwl8k_conf_tx,
|
|
.get_tx_stats = mwl8k_get_tx_stats,
|
|
.get_stats = mwl8k_get_stats,
|
|
};
|
|
|
|
static void mwl8k_tx_reclaim_handler(unsigned long data)
|
|
{
|
|
int i;
|
|
struct ieee80211_hw *hw = (struct ieee80211_hw *) data;
|
|
struct mwl8k_priv *priv = hw->priv;
|
|
|
|
spin_lock_bh(&priv->tx_lock);
|
|
for (i = 0; i < MWL8K_TX_QUEUES; i++)
|
|
mwl8k_txq_reclaim(hw, i, 0);
|
|
|
|
if (priv->tx_wait != NULL && !priv->pending_tx_pkts) {
|
|
complete(priv->tx_wait);
|
|
priv->tx_wait = NULL;
|
|
}
|
|
spin_unlock_bh(&priv->tx_lock);
|
|
}
|
|
|
|
static void mwl8k_finalize_join_worker(struct work_struct *work)
|
|
{
|
|
struct mwl8k_priv *priv =
|
|
container_of(work, struct mwl8k_priv, finalize_join_worker);
|
|
struct sk_buff *skb = priv->beacon_skb;
|
|
u8 dtim = MWL8K_VIF(priv->vif)->bss_info.dtim_period;
|
|
|
|
mwl8k_finalize_join(priv->hw, skb->data, skb->len, dtim);
|
|
dev_kfree_skb(skb);
|
|
|
|
priv->beacon_skb = NULL;
|
|
}
|
|
|
|
static struct mwl8k_device_info di_8687 = {
|
|
.part_name = "88w8687",
|
|
.helper_image = "mwl8k/helper_8687.fw",
|
|
.fw_image = "mwl8k/fmimage_8687.fw",
|
|
};
|
|
|
|
static DEFINE_PCI_DEVICE_TABLE(mwl8k_pci_id_table) = {
|
|
{
|
|
PCI_VDEVICE(MARVELL, 0x2a2b),
|
|
.driver_data = (unsigned long)&di_8687,
|
|
}, {
|
|
PCI_VDEVICE(MARVELL, 0x2a30),
|
|
.driver_data = (unsigned long)&di_8687,
|
|
}, {
|
|
},
|
|
};
|
|
MODULE_DEVICE_TABLE(pci, mwl8k_pci_id_table);
|
|
|
|
static int __devinit mwl8k_probe(struct pci_dev *pdev,
|
|
const struct pci_device_id *id)
|
|
{
|
|
static int printed_version = 0;
|
|
struct ieee80211_hw *hw;
|
|
struct mwl8k_priv *priv;
|
|
int rc;
|
|
int i;
|
|
|
|
if (!printed_version) {
|
|
printk(KERN_INFO "%s version %s\n", MWL8K_DESC, MWL8K_VERSION);
|
|
printed_version = 1;
|
|
}
|
|
|
|
rc = pci_enable_device(pdev);
|
|
if (rc) {
|
|
printk(KERN_ERR "%s: Cannot enable new PCI device\n",
|
|
MWL8K_NAME);
|
|
return rc;
|
|
}
|
|
|
|
rc = pci_request_regions(pdev, MWL8K_NAME);
|
|
if (rc) {
|
|
printk(KERN_ERR "%s: Cannot obtain PCI resources\n",
|
|
MWL8K_NAME);
|
|
return rc;
|
|
}
|
|
|
|
pci_set_master(pdev);
|
|
|
|
hw = ieee80211_alloc_hw(sizeof(*priv), &mwl8k_ops);
|
|
if (hw == NULL) {
|
|
printk(KERN_ERR "%s: ieee80211 alloc failed\n", MWL8K_NAME);
|
|
rc = -ENOMEM;
|
|
goto err_free_reg;
|
|
}
|
|
|
|
priv = hw->priv;
|
|
priv->hw = hw;
|
|
priv->pdev = pdev;
|
|
priv->device_info = (void *)id->driver_data;
|
|
priv->sniffer_enabled = false;
|
|
priv->wmm_enabled = false;
|
|
priv->pending_tx_pkts = 0;
|
|
|
|
SET_IEEE80211_DEV(hw, &pdev->dev);
|
|
pci_set_drvdata(pdev, hw);
|
|
|
|
priv->sram = pci_iomap(pdev, 0, 0x10000);
|
|
if (priv->sram == NULL) {
|
|
printk(KERN_ERR "%s: Cannot map device SRAM\n",
|
|
wiphy_name(hw->wiphy));
|
|
goto err_iounmap;
|
|
}
|
|
|
|
/*
|
|
* If BAR0 is a 32 bit BAR, the register BAR will be BAR1.
|
|
* If BAR0 is a 64 bit BAR, the register BAR will be BAR2.
|
|
*/
|
|
priv->regs = pci_iomap(pdev, 1, 0x10000);
|
|
if (priv->regs == NULL) {
|
|
priv->regs = pci_iomap(pdev, 2, 0x10000);
|
|
if (priv->regs == NULL) {
|
|
printk(KERN_ERR "%s: Cannot map device registers\n",
|
|
wiphy_name(hw->wiphy));
|
|
goto err_iounmap;
|
|
}
|
|
}
|
|
|
|
memcpy(priv->channels, mwl8k_channels, sizeof(mwl8k_channels));
|
|
priv->band.band = IEEE80211_BAND_2GHZ;
|
|
priv->band.channels = priv->channels;
|
|
priv->band.n_channels = ARRAY_SIZE(mwl8k_channels);
|
|
priv->band.bitrates = priv->rates;
|
|
priv->band.n_bitrates = ARRAY_SIZE(mwl8k_rates);
|
|
hw->wiphy->bands[IEEE80211_BAND_2GHZ] = &priv->band;
|
|
|
|
BUILD_BUG_ON(sizeof(priv->rates) != sizeof(mwl8k_rates));
|
|
memcpy(priv->rates, mwl8k_rates, sizeof(mwl8k_rates));
|
|
|
|
/*
|
|
* Extra headroom is the size of the required DMA header
|
|
* minus the size of the smallest 802.11 frame (CTS frame).
|
|
*/
|
|
hw->extra_tx_headroom =
|
|
sizeof(struct mwl8k_dma_data) - sizeof(struct ieee80211_cts);
|
|
|
|
hw->channel_change_time = 10;
|
|
|
|
hw->queues = MWL8K_TX_QUEUES;
|
|
|
|
hw->wiphy->interface_modes = BIT(NL80211_IFTYPE_STATION);
|
|
|
|
/* Set rssi and noise values to dBm */
|
|
hw->flags |= IEEE80211_HW_SIGNAL_DBM | IEEE80211_HW_NOISE_DBM;
|
|
hw->vif_data_size = sizeof(struct mwl8k_vif);
|
|
priv->vif = NULL;
|
|
|
|
/* Set default radio state and preamble */
|
|
priv->radio_on = 0;
|
|
priv->radio_short_preamble = 0;
|
|
|
|
/* Finalize join worker */
|
|
INIT_WORK(&priv->finalize_join_worker, mwl8k_finalize_join_worker);
|
|
|
|
/* TX reclaim tasklet */
|
|
tasklet_init(&priv->tx_reclaim_task,
|
|
mwl8k_tx_reclaim_handler, (unsigned long)hw);
|
|
tasklet_disable(&priv->tx_reclaim_task);
|
|
|
|
/* Power management cookie */
|
|
priv->cookie = pci_alloc_consistent(priv->pdev, 4, &priv->cookie_dma);
|
|
if (priv->cookie == NULL)
|
|
goto err_iounmap;
|
|
|
|
rc = mwl8k_rxq_init(hw, 0);
|
|
if (rc)
|
|
goto err_iounmap;
|
|
rxq_refill(hw, 0, INT_MAX);
|
|
|
|
mutex_init(&priv->fw_mutex);
|
|
priv->fw_mutex_owner = NULL;
|
|
priv->fw_mutex_depth = 0;
|
|
priv->hostcmd_wait = NULL;
|
|
|
|
spin_lock_init(&priv->tx_lock);
|
|
|
|
priv->tx_wait = NULL;
|
|
|
|
for (i = 0; i < MWL8K_TX_QUEUES; i++) {
|
|
rc = mwl8k_txq_init(hw, i);
|
|
if (rc)
|
|
goto err_free_queues;
|
|
}
|
|
|
|
iowrite32(0, priv->regs + MWL8K_HIU_A2H_INTERRUPT_STATUS);
|
|
iowrite32(0, priv->regs + MWL8K_HIU_A2H_INTERRUPT_MASK);
|
|
iowrite32(0, priv->regs + MWL8K_HIU_A2H_INTERRUPT_CLEAR_SEL);
|
|
iowrite32(0xffffffff, priv->regs + MWL8K_HIU_A2H_INTERRUPT_STATUS_MASK);
|
|
|
|
rc = request_irq(priv->pdev->irq, &mwl8k_interrupt,
|
|
IRQF_SHARED, MWL8K_NAME, hw);
|
|
if (rc) {
|
|
printk(KERN_ERR "%s: failed to register IRQ handler\n",
|
|
wiphy_name(hw->wiphy));
|
|
goto err_free_queues;
|
|
}
|
|
|
|
/* Reset firmware and hardware */
|
|
mwl8k_hw_reset(priv);
|
|
|
|
/* Ask userland hotplug daemon for the device firmware */
|
|
rc = mwl8k_request_firmware(priv);
|
|
if (rc) {
|
|
printk(KERN_ERR "%s: Firmware files not found\n",
|
|
wiphy_name(hw->wiphy));
|
|
goto err_free_irq;
|
|
}
|
|
|
|
/* Load firmware into hardware */
|
|
rc = mwl8k_load_firmware(hw);
|
|
if (rc) {
|
|
printk(KERN_ERR "%s: Cannot start firmware\n",
|
|
wiphy_name(hw->wiphy));
|
|
goto err_stop_firmware;
|
|
}
|
|
|
|
/* Reclaim memory once firmware is successfully loaded */
|
|
mwl8k_release_firmware(priv);
|
|
|
|
/*
|
|
* Temporarily enable interrupts. Initial firmware host
|
|
* commands use interrupts and avoids polling. Disable
|
|
* interrupts when done.
|
|
*/
|
|
iowrite32(MWL8K_A2H_EVENTS, priv->regs + MWL8K_HIU_A2H_INTERRUPT_MASK);
|
|
|
|
/* Get config data, mac addrs etc */
|
|
rc = mwl8k_cmd_get_hw_spec(hw);
|
|
if (rc) {
|
|
printk(KERN_ERR "%s: Cannot initialise firmware\n",
|
|
wiphy_name(hw->wiphy));
|
|
goto err_stop_firmware;
|
|
}
|
|
|
|
/* Turn radio off */
|
|
rc = mwl8k_cmd_802_11_radio_disable(hw);
|
|
if (rc) {
|
|
printk(KERN_ERR "%s: Cannot disable\n", wiphy_name(hw->wiphy));
|
|
goto err_stop_firmware;
|
|
}
|
|
|
|
/* Clear MAC address */
|
|
rc = mwl8k_set_mac_addr(hw, "\x00\x00\x00\x00\x00\x00");
|
|
if (rc) {
|
|
printk(KERN_ERR "%s: Cannot clear MAC address\n",
|
|
wiphy_name(hw->wiphy));
|
|
goto err_stop_firmware;
|
|
}
|
|
|
|
/* Disable interrupts */
|
|
iowrite32(0, priv->regs + MWL8K_HIU_A2H_INTERRUPT_MASK);
|
|
free_irq(priv->pdev->irq, hw);
|
|
|
|
rc = ieee80211_register_hw(hw);
|
|
if (rc) {
|
|
printk(KERN_ERR "%s: Cannot register device\n",
|
|
wiphy_name(hw->wiphy));
|
|
goto err_stop_firmware;
|
|
}
|
|
|
|
printk(KERN_INFO "%s: %s v%d, %pM, %s firmware %u.%u.%u.%u\n",
|
|
wiphy_name(hw->wiphy), priv->device_info->part_name,
|
|
priv->hw_rev, hw->wiphy->perm_addr,
|
|
priv->ap_fw ? "AP" : "STA",
|
|
(priv->fw_rev >> 24) & 0xff, (priv->fw_rev >> 16) & 0xff,
|
|
(priv->fw_rev >> 8) & 0xff, priv->fw_rev & 0xff);
|
|
|
|
return 0;
|
|
|
|
err_stop_firmware:
|
|
mwl8k_hw_reset(priv);
|
|
mwl8k_release_firmware(priv);
|
|
|
|
err_free_irq:
|
|
iowrite32(0, priv->regs + MWL8K_HIU_A2H_INTERRUPT_MASK);
|
|
free_irq(priv->pdev->irq, hw);
|
|
|
|
err_free_queues:
|
|
for (i = 0; i < MWL8K_TX_QUEUES; i++)
|
|
mwl8k_txq_deinit(hw, i);
|
|
mwl8k_rxq_deinit(hw, 0);
|
|
|
|
err_iounmap:
|
|
if (priv->cookie != NULL)
|
|
pci_free_consistent(priv->pdev, 4,
|
|
priv->cookie, priv->cookie_dma);
|
|
|
|
if (priv->regs != NULL)
|
|
pci_iounmap(pdev, priv->regs);
|
|
|
|
if (priv->sram != NULL)
|
|
pci_iounmap(pdev, priv->sram);
|
|
|
|
pci_set_drvdata(pdev, NULL);
|
|
ieee80211_free_hw(hw);
|
|
|
|
err_free_reg:
|
|
pci_release_regions(pdev);
|
|
pci_disable_device(pdev);
|
|
|
|
return rc;
|
|
}
|
|
|
|
static void __devexit mwl8k_shutdown(struct pci_dev *pdev)
|
|
{
|
|
printk(KERN_ERR "===>%s(%u)\n", __func__, __LINE__);
|
|
}
|
|
|
|
static void __devexit mwl8k_remove(struct pci_dev *pdev)
|
|
{
|
|
struct ieee80211_hw *hw = pci_get_drvdata(pdev);
|
|
struct mwl8k_priv *priv;
|
|
int i;
|
|
|
|
if (hw == NULL)
|
|
return;
|
|
priv = hw->priv;
|
|
|
|
ieee80211_stop_queues(hw);
|
|
|
|
ieee80211_unregister_hw(hw);
|
|
|
|
/* Remove tx reclaim tasklet */
|
|
tasklet_kill(&priv->tx_reclaim_task);
|
|
|
|
/* Stop hardware */
|
|
mwl8k_hw_reset(priv);
|
|
|
|
/* Return all skbs to mac80211 */
|
|
for (i = 0; i < MWL8K_TX_QUEUES; i++)
|
|
mwl8k_txq_reclaim(hw, i, 1);
|
|
|
|
for (i = 0; i < MWL8K_TX_QUEUES; i++)
|
|
mwl8k_txq_deinit(hw, i);
|
|
|
|
mwl8k_rxq_deinit(hw, 0);
|
|
|
|
pci_free_consistent(priv->pdev, 4, priv->cookie, priv->cookie_dma);
|
|
|
|
pci_iounmap(pdev, priv->regs);
|
|
pci_iounmap(pdev, priv->sram);
|
|
pci_set_drvdata(pdev, NULL);
|
|
ieee80211_free_hw(hw);
|
|
pci_release_regions(pdev);
|
|
pci_disable_device(pdev);
|
|
}
|
|
|
|
static struct pci_driver mwl8k_driver = {
|
|
.name = MWL8K_NAME,
|
|
.id_table = mwl8k_pci_id_table,
|
|
.probe = mwl8k_probe,
|
|
.remove = __devexit_p(mwl8k_remove),
|
|
.shutdown = __devexit_p(mwl8k_shutdown),
|
|
};
|
|
|
|
static int __init mwl8k_init(void)
|
|
{
|
|
return pci_register_driver(&mwl8k_driver);
|
|
}
|
|
|
|
static void __exit mwl8k_exit(void)
|
|
{
|
|
pci_unregister_driver(&mwl8k_driver);
|
|
}
|
|
|
|
module_init(mwl8k_init);
|
|
module_exit(mwl8k_exit);
|
|
|
|
MODULE_DESCRIPTION(MWL8K_DESC);
|
|
MODULE_VERSION(MWL8K_VERSION);
|
|
MODULE_AUTHOR("Lennert Buytenhek <buytenh@marvell.com>");
|
|
MODULE_LICENSE("GPL");
|