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提交 ce9e2e1b 编写于 作者: L Lennert Buytenhek 提交者： John W. Linville
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mwl8k: various coding style cleanups 

Signed-off-by: NLennert Buytenhek <buytenh@marvell.com>
Signed-off-by: NJohn W. Linville <linville@tuxdriver.com>
上级 ff45fc60
隐藏空白更改
内联 并排
Showing with 57 addition and 73 deletion
drivers/net/wireless/mwl8k.c
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/*
* drivers/net/wireless/mwl8k.c driver for Marvell TOPDOG 802.11 Wireless cards
* drivers/net/wireless/mwl8k.c
* Driver for Marvell TOPDOG 802.11 Wireless cards
*
* Copyright (C) 2008 Marvell Semiconductor Inc.
*
......@@ -40,12 +41,12 @@ MODULE_DEVICE_TABLE(pci, mwl8k_table);
/* Register definitions */
#define MWL8K_HIU_GEN_PTR 0x00000c10
#define MWL8K_MODE_STA 0x0000005a
#define MWL8K_MODE_AP 0x000000a5
#define MWL8K_MODE_STA 0x0000005a
#define MWL8K_MODE_AP 0x000000a5
#define MWL8K_HIU_INT_CODE 0x00000c14
#define MWL8K_FWSTA_READY 0xf0f1f2f4
#define MWL8K_FWAP_READY 0xf1f2f4a5
#define MWL8K_INT_CODE_CMD_FINISHED 0x00000005
#define MWL8K_FWSTA_READY 0xf0f1f2f4
#define MWL8K_FWAP_READY 0xf1f2f4a5
#define MWL8K_INT_CODE_CMD_FINISHED 0x00000005
#define MWL8K_HIU_SCRATCH 0x00000c40
/* Host->device communications */
......@@ -54,10 +55,10 @@ MODULE_DEVICE_TABLE(pci, mwl8k_table);
#define MWL8K_HIU_H2A_INTERRUPT_MASK 0x00000c20
#define MWL8K_HIU_H2A_INTERRUPT_CLEAR_SEL 0x00000c24
#define MWL8K_HIU_H2A_INTERRUPT_STATUS_MASK 0x00000c28
#define MWL8K_H2A_INT_DUMMY (1 << 20)
#define MWL8K_H2A_INT_RESET (1 << 15)
#define MWL8K_H2A_INT_DOORBELL (1 << 1)
#define MWL8K_H2A_INT_PPA_READY (1 << 0)
#define MWL8K_H2A_INT_DUMMY (1 << 20)
#define MWL8K_H2A_INT_RESET (1 << 15)
#define MWL8K_H2A_INT_DOORBELL (1 << 1)
#define MWL8K_H2A_INT_PPA_READY (1 << 0)
/* Device->host communications */
#define MWL8K_HIU_A2H_INTERRUPT_EVENTS 0x00000c2c
......@@ -65,16 +66,16 @@ MODULE_DEVICE_TABLE(pci, mwl8k_table);
#define MWL8K_HIU_A2H_INTERRUPT_MASK 0x00000c34
#define MWL8K_HIU_A2H_INTERRUPT_CLEAR_SEL 0x00000c38
#define MWL8K_HIU_A2H_INTERRUPT_STATUS_MASK 0x00000c3c
#define MWL8K_A2H_INT_DUMMY (1 << 20)
#define MWL8K_A2H_INT_CHNL_SWITCHED (1 << 11)
#define MWL8K_A2H_INT_QUEUE_EMPTY (1 << 10)
#define MWL8K_A2H_INT_RADAR_DETECT (1 << 7)
#define MWL8K_A2H_INT_RADIO_ON (1 << 6)
#define MWL8K_A2H_INT_RADIO_OFF (1 << 5)
#define MWL8K_A2H_INT_MAC_EVENT (1 << 3)
#define MWL8K_A2H_INT_OPC_DONE (1 << 2)
#define MWL8K_A2H_INT_RX_READY (1 << 1)
#define MWL8K_A2H_INT_TX_DONE (1 << 0)
#define MWL8K_A2H_INT_DUMMY (1 << 20)
#define MWL8K_A2H_INT_CHNL_SWITCHED (1 << 11)
#define MWL8K_A2H_INT_QUEUE_EMPTY (1 << 10)
#define MWL8K_A2H_INT_RADAR_DETECT (1 << 7)
#define MWL8K_A2H_INT_RADIO_ON (1 << 6)
#define MWL8K_A2H_INT_RADIO_OFF (1 << 5)
#define MWL8K_A2H_INT_MAC_EVENT (1 << 3)
#define MWL8K_A2H_INT_OPC_DONE (1 << 2)
#define MWL8K_A2H_INT_RX_READY (1 << 1)
#define MWL8K_A2H_INT_TX_DONE (1 << 0)
#define MWL8K_A2H_EVENTS (MWL8K_A2H_INT_DUMMY | \
MWL8K_A2H_INT_CHNL_SWITCHED | \
......@@ -331,7 +332,7 @@ static const char *mwl8k_cmd_name(u16 cmd, char *buf, int bufsize)
snprintf(buf, bufsize, "%s", #x);\
return buf;\
} while (0)
switch (cmd & (~0x8000)) {
switch (cmd & ~0x8000) {
MWL8K_CMDNAME(CODE_DNLD);
MWL8K_CMDNAME(GET_HW_SPEC);
MWL8K_CMDNAME(MAC_MULTICAST_ADR);
......@@ -1078,8 +1079,7 @@ static int mwl8k_txq_init(struct ieee80211_hw *hw, int index)
int size;
int i;
memset(&txq->tx_stats, 0,
sizeof(struct ieee80211_tx_queue_stats));
memset(&txq->tx_stats, 0, sizeof(struct ieee80211_tx_queue_stats));
txq->tx_stats.limit = MWL8K_TX_DESCS;
txq->tx_head = 0;
txq->tx_tail = 0;
......@@ -1181,10 +1181,10 @@ static int mwl8k_scan_tx_ring(struct mwl8k_priv *priv,
static int mwl8k_tx_wait_empty(struct ieee80211_hw *hw, u32 delay_ms)
{
u32 count = 0;
unsigned long timeout = 0;
struct mwl8k_priv *priv = hw->priv;
DECLARE_COMPLETION_ONSTACK(cmd_wait);
u32 count;
unsigned long timeout;
might_sleep();
......@@ -1219,7 +1219,7 @@ static int mwl8k_tx_wait_empty(struct ieee80211_hw *hw, u32 delay_ms)
__func__, __LINE__, delay_ms, count, newcount);
mwl8k_scan_tx_ring(priv, txinfo, 4);
for (index = 0 ; index < 4; index++)
for (index = 0; index < 4; index++)
printk(KERN_ERR
"TXQ:%u L:%u H:%u T:%u FW:%u DRV:%u U:%u\n",
index,
......@@ -1229,6 +1229,7 @@ static int mwl8k_tx_wait_empty(struct ieee80211_hw *hw, u32 delay_ms)
txinfo[index].fw_owned,
txinfo[index].drv_owned,
txinfo[index].unused);
return -ETIMEDOUT;
}
......@@ -1251,7 +1252,7 @@ static void mwl8k_txq_reclaim(struct ieee80211_hw *hw, int index, int force)
int rc;
struct mwl8k_tx_desc *tx_desc;
unsigned long addr;
size_t size;
int size;
struct sk_buff *skb;
struct ieee80211_tx_info *info;
u32 status;
......@@ -1275,7 +1276,7 @@ static void mwl8k_txq_reclaim(struct ieee80211_hw *hw, int index, int force)
priv->pending_tx_pkts--;
addr = le32_to_cpu(tx_desc->pkt_phys_addr);
size = (u32)(le16_to_cpu(tx_desc->pkt_len));
size = le16_to_cpu(tx_desc->pkt_len);
skb = txq->tx_skb[tx].skb;
txq->tx_skb[tx].skb = NULL;
......@@ -1312,12 +1313,8 @@ static void mwl8k_txq_reclaim(struct ieee80211_hw *hw, int index, int force)
info = IEEE80211_SKB_CB(skb);
ieee80211_tx_info_clear_status(info);
/* Convert firmware status stuff into tx_status */
if (MWL8K_TXD_SUCCESS(status)) {
/* Transmit OK */
if (MWL8K_TXD_SUCCESS(status))
info->flags |= IEEE80211_TX_STAT_ACK;
}
ieee80211_tx_status_irqsafe(hw, skb);
......@@ -1522,7 +1519,6 @@ static int mwl8k_post_cmd(struct ieee80211_hw *hw, struct mwl8k_cmd_pkt *cmd)
dma_addr_t dma_addr;
unsigned int dma_size;
int rc;
u16 __iomem *result;
unsigned long timeout = 0;
u8 buf[32];
......@@ -1551,7 +1547,6 @@ static int mwl8k_post_cmd(struct ieee80211_hw *hw, struct mwl8k_cmd_pkt *cmd)
pci_unmap_single(priv->pdev, dma_addr, dma_size,
PCI_DMA_BIDIRECTIONAL);
result = &cmd->result;
if (!timeout) {
spin_lock_irq(&priv->fw_lock);
priv->hostcmd_wait = NULL;
......@@ -1562,12 +1557,12 @@ static int mwl8k_post_cmd(struct ieee80211_hw *hw, struct mwl8k_cmd_pkt *cmd)
MWL8K_CMD_TIMEOUT_MS);
rc = -ETIMEDOUT;
} else {
rc = *result ? -EINVAL : 0;
rc = cmd->result ? -EINVAL : 0;
if (rc)
printk(KERN_ERR "%s: Command %s error 0x%x\n",
priv->name,
mwl8k_cmd_name(cmd->code, buf, sizeof(buf)),
*result);
cmd->result);
}
return rc;
......@@ -1638,10 +1633,11 @@ struct mwl8k_cmd_mac_multicast_adr {
struct mwl8k_cmd_pkt header;
__le16 action;
__le16 numaddr;
__u8 addr[1][ETH_ALEN];
__u8 addr[0][ETH_ALEN];
};
#define MWL8K_ENABLE_RX_MULTICAST 0x000F
static int mwl8k_cmd_mac_multicast_adr(struct ieee80211_hw *hw,
int mc_count,
struct dev_addr_list *mclist)
......@@ -1649,7 +1645,8 @@ static int mwl8k_cmd_mac_multicast_adr(struct ieee80211_hw *hw,
struct mwl8k_cmd_mac_multicast_adr *cmd;
int index = 0;
int rc;
int size = sizeof(*cmd) + ((mc_count - 1) * ETH_ALEN);
int size = sizeof(*cmd) + mc_count * ETH_ALEN;
cmd = kzalloc(size, GFP_KERNEL);
if (cmd == NULL)
return -ENOMEM;
......@@ -1658,13 +1655,13 @@ static int mwl8k_cmd_mac_multicast_adr(struct ieee80211_hw *hw,
cmd->header.length = cpu_to_le16(size);
cmd->action = cpu_to_le16(MWL8K_ENABLE_RX_MULTICAST);
cmd->numaddr = cpu_to_le16(mc_count);
while ((index < mc_count) && mclist) {
while (index < mc_count && mclist) {
if (mclist->da_addrlen != ETH_ALEN) {
rc = -EINVAL;
goto mwl8k_cmd_mac_multicast_adr_exit;
}
memcpy(cmd->addr[index], mclist->da_addr, ETH_ALEN);
index++;
memcpy(cmd->addr[index++], mclist->da_addr, ETH_ALEN);
mclist = mclist->next;
}
......@@ -1846,7 +1843,7 @@ struct mwl8k_cmd_set_post_scan {
} __attribute__((packed));
static int
mwl8k_cmd_set_post_scan(struct ieee80211_hw *hw, __u8 mac[ETH_ALEN])
mwl8k_cmd_set_post_scan(struct ieee80211_hw *hw, __u8 *mac)
{
struct mwl8k_cmd_set_post_scan *cmd;
int rc;
......@@ -1980,7 +1977,7 @@ static int mwl8k_enable_sniffer(struct ieee80211_hw *hw, bool enable)
cmd->header.code = cpu_to_le16(MWL8K_CMD_ENABLE_SNIFFER);
cmd->header.length = cpu_to_le16(sizeof(*cmd));
cmd->action = enable ? cpu_to_le32((u32)MWL8K_CMD_SET) : 0;
cmd->action = cpu_to_le32(!!enable);
rc = mwl8k_post_cmd(hw, &cmd->header);
kfree(cmd);
......@@ -1989,7 +1986,7 @@ static int mwl8k_enable_sniffer(struct ieee80211_hw *hw, bool enable)
}
/*
* CMD_SET_RATE_ADAPT_MODE.
* CMD_SET_RATEADAPT_MODE.
*/
struct mwl8k_cmd_set_rate_adapt_mode {
struct mwl8k_cmd_pkt header;
......@@ -2117,22 +2114,18 @@ mwl8k_set_edca_params(struct ieee80211_hw *hw, __u8 qnum,
__u8 aifs, __u16 txop)
{
struct mwl8k_cmd_set_edca_params *cmd;
u32 log_cw_min, log_cw_max;
int rc;
cmd = kzalloc(sizeof(*cmd), GFP_KERNEL);
if (cmd == NULL)
return -ENOMEM;
log_cw_min = ilog2(cw_min+1);
log_cw_max = ilog2(cw_max+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)log_cw_max;
cmd->log_cw_min = (u8)log_cw_min;
cmd->log_cw_max = (u8)ilog2(cw_max + 1);
cmd->log_cw_min = (u8)ilog2(cw_min + 1);
cmd->aifs = aifs;
cmd->txq = qnum;
......@@ -2173,11 +2166,7 @@ static int mwl8k_finalize_join(struct ieee80211_hw *hw, void *frame,
cmd->header.code = cpu_to_le16(MWL8K_CMD_SET_FINALIZE_JOIN);
cmd->header.length = cpu_to_le16(sizeof(*cmd));
if (dtim)
cmd->sleep_interval = cpu_to_le32(dtim);
else
cmd->sleep_interval = cpu_to_le32(1);
cmd->sleep_interval = cpu_to_le32(dtim ? dtim : 1);
hdrlen = ieee80211_hdrlen(payload->frame_control);
......@@ -2189,8 +2178,8 @@ static int mwl8k_finalize_join(struct ieee80211_hw *hw, void *frame,
"sent to firmware. Sz=%u MAX=%u\n", __func__,
payload_len, MWL8K_FJ_BEACON_MAXLEN);
payload_len = payload_len > MWL8K_FJ_BEACON_MAXLEN ?
MWL8K_FJ_BEACON_MAXLEN : payload_len;
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);
......@@ -2250,7 +2239,7 @@ static int mwl8k_cmd_update_sta_db(struct ieee80211_hw *hw,
peer_info->amsdu_enabled = 0;
rates = peer_info->legacy_rates;
for (count = 0 ; count < mv_vif->legacy_nrates; count++)
for (count = 0; count < mv_vif->legacy_nrates; count++)
rates[count] = bitrates[count].hw_value;
rc = mwl8k_post_cmd(hw, &cmd->header);
......@@ -2313,8 +2302,6 @@ static int mwl8k_cmd_set_aid(struct ieee80211_hw *hw,
memcpy(cmd->bssid, mv_vif->bssid, ETH_ALEN);
prot_mode = MWL8K_FRAME_PROT_DISABLED;
if (info->use_cts_prot) {
prot_mode = MWL8K_FRAME_PROT_11G;
} else {
......@@ -2331,7 +2318,6 @@ static int mwl8k_cmd_set_aid(struct ieee80211_hw *hw,
break;
}
}
cmd->protection_mode = cpu_to_le16(prot_mode);
for (count = 0; count < mv_vif->legacy_nrates; count++)
......@@ -2934,7 +2920,7 @@ static int mwl8k_add_interface(struct ieee80211_hw *hw,
mwl8k_vif->priv = priv;
/* Setup initial PHY parameters */
memcpy(mwl8k_vif->legacy_rates ,
memcpy(mwl8k_vif->legacy_rates,
priv->rates, sizeof(mwl8k_vif->legacy_rates));
mwl8k_vif->legacy_nrates = ARRAY_SIZE(priv->rates);
......@@ -3171,8 +3157,9 @@ static int mwl8k_configure_filter_wt(struct work_struct *wt)
if (rc)
goto mwl8k_configure_filter_exit;
if (mc_count) {
mc_count = mc_count < priv->num_mcaddrs ?
mc_count : priv->num_mcaddrs;
if (mc_count > priv->num_mcaddrs)
mc_count = priv->num_mcaddrs;
rc = mwl8k_cmd_mac_multicast_adr(hw, mc_count, mclist);
if (rc)
printk(KERN_ERR
......@@ -3411,12 +3398,9 @@ static void mwl8k_tx_reclaim_handler(unsigned long data)
for (i = 0; i < MWL8K_TX_QUEUES; i++)
mwl8k_txq_reclaim(hw, i, 0);
if (priv->tx_wait != NULL) {
int count = mwl8k_txq_busy(priv);
if (count == 0) {
complete(priv->tx_wait);
priv->tx_wait = NULL;
}
if (priv->tx_wait != NULL && mwl8k_txq_busy(priv) == 0) {
complete(priv->tx_wait);
priv->tx_wait = NULL;
}
spin_unlock_bh(&priv->tx_lock);
}
......@@ -3426,7 +3410,7 @@ 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;
u8 dtim = MWL8K_VIF(priv->vif)->bss_info.dtim_period;
mwl8k_finalize_join(priv->hw, skb->data, skb->len, dtim);
dev_kfree_skb(skb);
......@@ -3513,7 +3497,7 @@ static int __devinit mwl8k_probe(struct pci_dev *pdev,
BIT(NL80211_IFTYPE_STATION) | BIT(NL80211_IFTYPE_MONITOR);
/* Set rssi and noise values to dBm */
hw->flags |= (IEEE80211_HW_SIGNAL_DBM | IEEE80211_HW_NOISE_DBM);
hw->flags |= IEEE80211_HW_SIGNAL_DBM | IEEE80211_HW_NOISE_DBM;
hw->vif_data_size = sizeof(struct mwl8k_vif);
priv->vif = NULL;
......
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