diff options
Diffstat (limited to 'drivers/staging/rtl8187se/r8180_core.c')
| -rw-r--r-- | drivers/staging/rtl8187se/r8180_core.c | 3749 |
1 files changed, 0 insertions, 3749 deletions
diff --git a/drivers/staging/rtl8187se/r8180_core.c b/drivers/staging/rtl8187se/r8180_core.c deleted file mode 100644 index 6cafee22bec4..000000000000 --- a/drivers/staging/rtl8187se/r8180_core.c +++ /dev/null @@ -1,3749 +0,0 @@ -/* - This is part of rtl818x pci OpenSource driver - v 0.1 - Copyright (C) Andrea Merello 2004-2005 <andrea.merello@gmail.com> - Released under the terms of GPL (General Public License) - - Parts of this driver are based on the GPL part of the official - Realtek driver. - - Parts of this driver are based on the rtl8180 driver skeleton - from Patric Schenke & Andres Salomon. - - Parts of this driver are based on the Intel Pro Wireless 2100 GPL driver. - - Parts of BB/RF code are derived from David Young rtl8180 netbsd driver. - - RSSI calc function from 'The Deuce' - - Some ideas borrowed from the 8139too.c driver included in linux kernel. - - We (I?) want to thanks the Authors of those projecs and also the - Ndiswrapper's project Authors. - - A big big thanks goes also to Realtek corp. for their help in my attempt to - add RTL8185 and RTL8225 support, and to David Young also. - - Power management interface routines. - Written by Mariusz Matuszek. -*/ - -#define pr_fmt(fmt) KBUILD_MODNAME ": " fmt - -#undef RX_DONT_PASS_UL -#undef DUMMY_RX - -#include <linux/slab.h> -#include <linux/syscalls.h> -#include <linux/eeprom_93cx6.h> -#include <linux/interrupt.h> -#include <linux/proc_fs.h> -#include <linux/seq_file.h> - -#include "r8180_hw.h" -#include "r8180.h" -#include "r8180_rtl8225.h" /* RTL8225 Radio frontend */ -#include "r8180_93cx6.h" /* Card EEPROM */ -#include "r8180_wx.h" -#include "r8180_dm.h" - -#include "ieee80211/dot11d.h" - -static struct pci_device_id rtl8180_pci_id_tbl[] = { - { - .vendor = PCI_VENDOR_ID_REALTEK, - .device = 0x8199, - .subvendor = PCI_ANY_ID, - .subdevice = PCI_ANY_ID, - .driver_data = 0, - }, - { - .vendor = 0, - .device = 0, - .subvendor = 0, - .subdevice = 0, - .driver_data = 0, - } -}; - -static char ifname[IFNAMSIZ] = "wlan%d"; -static int hwwep; - -MODULE_LICENSE("GPL"); -MODULE_DEVICE_TABLE(pci, rtl8180_pci_id_tbl); -MODULE_AUTHOR("Andrea Merello <andrea.merello@gmail.com>"); -MODULE_DESCRIPTION("Linux driver for Realtek RTL8187SE WiFi cards"); - -module_param_string(ifname, ifname, sizeof(ifname), S_IRUGO|S_IWUSR); -module_param(hwwep, int, S_IRUGO|S_IWUSR); - -MODULE_PARM_DESC(hwwep, " Try to use hardware WEP support. Still broken and not available on all cards"); - -static int rtl8180_pci_probe(struct pci_dev *pdev, - const struct pci_device_id *id); - -static void rtl8180_pci_remove(struct pci_dev *pdev); - -static void rtl8180_shutdown(struct pci_dev *pdev) -{ - struct net_device *dev = pci_get_drvdata(pdev); - if (dev->netdev_ops->ndo_stop) - dev->netdev_ops->ndo_stop(dev); - pci_disable_device(pdev); -} - -static int rtl8180_suspend(struct pci_dev *pdev, pm_message_t state) -{ - struct net_device *dev = pci_get_drvdata(pdev); - - if (!netif_running(dev)) - goto out_pci_suspend; - - if (dev->netdev_ops->ndo_stop) - dev->netdev_ops->ndo_stop(dev); - - netif_device_detach(dev); - -out_pci_suspend: - pci_save_state(pdev); - pci_disable_device(pdev); - pci_set_power_state(pdev, pci_choose_state(pdev, state)); - return 0; -} - -static int rtl8180_resume(struct pci_dev *pdev) -{ - struct net_device *dev = pci_get_drvdata(pdev); - int err; - u32 val; - - pci_set_power_state(pdev, PCI_D0); - - err = pci_enable_device(pdev); - if (err) { - dev_err(&pdev->dev, "pci_enable_device failed on resume\n"); - - return err; - } - - pci_restore_state(pdev); - - /* - * Suspend/Resume resets the PCI configuration space, so we have to - * re-disable the RETRY_TIMEOUT register (0x41) to keep PCI Tx retries - * from interfering with C3 CPU state. pci_restore_state won't help - * here since it only restores the first 64 bytes pci config header. - */ - pci_read_config_dword(pdev, 0x40, &val); - if ((val & 0x0000ff00) != 0) - pci_write_config_dword(pdev, 0x40, val & 0xffff00ff); - - if (!netif_running(dev)) - goto out; - - if (dev->netdev_ops->ndo_open) - dev->netdev_ops->ndo_open(dev); - - netif_device_attach(dev); -out: - return 0; -} - -static struct pci_driver rtl8180_pci_driver = { - .name = RTL8180_MODULE_NAME, - .id_table = rtl8180_pci_id_tbl, - .probe = rtl8180_pci_probe, - .remove = rtl8180_pci_remove, - .suspend = rtl8180_suspend, - .resume = rtl8180_resume, - .shutdown = rtl8180_shutdown, -}; - -u8 read_nic_byte(struct net_device *dev, int x) -{ - return 0xff&readb((u8 __iomem *)dev->mem_start + x); -} - -u32 read_nic_dword(struct net_device *dev, int x) -{ - return readl((u8 __iomem *)dev->mem_start + x); -} - -u16 read_nic_word(struct net_device *dev, int x) -{ - return readw((u8 __iomem *)dev->mem_start + x); -} - -void write_nic_byte(struct net_device *dev, int x, u8 y) -{ - writeb(y, (u8 __iomem *)dev->mem_start + x); - udelay(20); -} - -void write_nic_dword(struct net_device *dev, int x, u32 y) -{ - writel(y, (u8 __iomem *)dev->mem_start + x); - udelay(20); -} - -void write_nic_word(struct net_device *dev, int x, u16 y) -{ - writew(y, (u8 __iomem *)dev->mem_start + x); - udelay(20); -} - -inline void force_pci_posting(struct net_device *dev) -{ - read_nic_byte(dev, EPROM_CMD); - mb(); -} - -static irqreturn_t rtl8180_interrupt(int irq, void *netdev); -void set_nic_rxring(struct net_device *dev); -void set_nic_txring(struct net_device *dev); -static struct net_device_stats *rtl8180_stats(struct net_device *dev); -void rtl8180_commit(struct net_device *dev); -void rtl8180_start_tx_beacon(struct net_device *dev); - -static struct proc_dir_entry *rtl8180_proc; - -static int proc_get_registers(struct seq_file *m, void *v) -{ - struct net_device *dev = m->private; - int i, n, max = 0xff; - - /* This dump the current register page */ - for (n = 0; n <= max;) { - seq_printf(m, "\nD: %2x > ", n); - - for (i = 0; i < 16 && n <= max; i++, n++) - seq_printf(m, "%2x ", read_nic_byte(dev, n)); - } - seq_putc(m, '\n'); - return 0; -} - -int get_curr_tx_free_desc(struct net_device *dev, int priority); - -static int proc_get_stats_hw(struct seq_file *m, void *v) -{ - return 0; -} - -static int proc_get_stats_rx(struct seq_file *m, void *v) -{ - struct net_device *dev = m->private; - struct r8180_priv *priv = (struct r8180_priv *)ieee80211_priv(dev); - - seq_printf(m, - "RX OK: %lu\n" - "RX Retry: %lu\n" - "RX CRC Error(0-500): %lu\n" - "RX CRC Error(500-1000): %lu\n" - "RX CRC Error(>1000): %lu\n" - "RX ICV Error: %lu\n", - priv->stats.rxint, - priv->stats.rxerr, - priv->stats.rxcrcerrmin, - priv->stats.rxcrcerrmid, - priv->stats.rxcrcerrmax, - priv->stats.rxicverr - ); - - return 0; -} - -static int proc_get_stats_tx(struct seq_file *m, void *v) -{ - struct net_device *dev = m->private; - struct r8180_priv *priv = (struct r8180_priv *)ieee80211_priv(dev); - unsigned long totalOK; - - totalOK = priv->stats.txnpokint+priv->stats.txhpokint+priv->stats.txlpokint; - seq_printf(m, - "TX OK: %lu\n" - "TX Error: %lu\n" - "TX Retry: %lu\n" - "TX beacon OK: %lu\n" - "TX beacon error: %lu\n", - totalOK, - priv->stats.txnperr+priv->stats.txhperr+priv->stats.txlperr, - priv->stats.txretry, - priv->stats.txbeacon, - priv->stats.txbeaconerr - ); - - return 0; -} - -static void rtl8180_proc_module_init(void) -{ - DMESG("Initializing proc filesystem"); - rtl8180_proc = proc_mkdir(RTL8180_MODULE_NAME, init_net.proc_net); -} - -static void rtl8180_proc_module_remove(void) -{ - remove_proc_entry(RTL8180_MODULE_NAME, init_net.proc_net); -} - -static void rtl8180_proc_remove_one(struct net_device *dev) -{ - remove_proc_subtree(dev->name, rtl8180_proc); -} - -/* - * seq_file wrappers for procfile show routines. - */ -static int rtl8180_proc_open(struct inode *inode, struct file *file) -{ - struct net_device *dev = proc_get_parent_data(inode); - int (*show)(struct seq_file *, void *) = PDE_DATA(inode); - - return single_open(file, show, dev); -} - -static const struct file_operations rtl8180_proc_fops = { - .open = rtl8180_proc_open, - .read = seq_read, - .llseek = seq_lseek, - .release = single_release, -}; - -/* - * Table of proc files we need to create. - */ -struct rtl8180_proc_file { - char name[12]; - int (*show)(struct seq_file *, void *); -}; - -static const struct rtl8180_proc_file rtl8180_proc_files[] = { - { "stats-hw", &proc_get_stats_hw }, - { "stats-rx", &proc_get_stats_rx }, - { "stats-tx", &proc_get_stats_tx }, - { "registers", &proc_get_registers }, - { "" } -}; - -static void rtl8180_proc_init_one(struct net_device *dev) -{ - const struct rtl8180_proc_file *f; - struct proc_dir_entry *dir; - - dir = proc_mkdir_data(dev->name, 0, rtl8180_proc, dev); - if (!dir) { - DMESGE("Unable to initialize /proc/net/r8180/%s\n", dev->name); - return; - } - - for (f = rtl8180_proc_files; f->name[0]; f++) { - if (!proc_create_data(f->name, S_IFREG | S_IRUGO, dir, - &rtl8180_proc_fops, f->show)) { - DMESGE("Unable to initialize /proc/net/r8180/%s/%s\n", - dev->name, f->name); - return; - } - } -} - -/* - FIXME: check if we can use some standard already-existent - data type+functions in kernel -*/ - -static short buffer_add(struct buffer **buffer, u32 *buf, dma_addr_t dma, - struct buffer **bufferhead) -{ - struct buffer *tmp; - - if (!*buffer) { - - *buffer = kmalloc(sizeof(struct buffer), GFP_KERNEL); - - if (*buffer == NULL) { - DMESGE("Failed to kmalloc head of TX/RX struct"); - return -1; - } - (*buffer)->next = *buffer; - (*buffer)->buf = buf; - (*buffer)->dma = dma; - if (bufferhead != NULL) - (*bufferhead) = (*buffer); - return 0; - } - tmp = *buffer; - - while (tmp->next != (*buffer)) - tmp = tmp->next; - tmp->next = kmalloc(sizeof(struct buffer), GFP_KERNEL); - if (tmp->next == NULL) { - DMESGE("Failed to kmalloc TX/RX struct"); - return -1; - } - tmp->next->buf = buf; - tmp->next->dma = dma; - tmp->next->next = *buffer; - - return 0; -} - -static void buffer_free(struct net_device *dev, struct buffer **buffer, int len, - short consistent) -{ - - struct buffer *tmp, *next; - struct r8180_priv *priv = (struct r8180_priv *)ieee80211_priv(dev); - struct pci_dev *pdev = priv->pdev; - - if (!*buffer) - return; - - tmp = *buffer; - - do { - next = tmp->next; - if (consistent) { - pci_free_consistent(pdev, len, - tmp->buf, tmp->dma); - } else { - pci_unmap_single(pdev, tmp->dma, - len, PCI_DMA_FROMDEVICE); - kfree(tmp->buf); - } - kfree(tmp); - tmp = next; - } while (next != *buffer); - - *buffer = NULL; -} - -int get_curr_tx_free_desc(struct net_device *dev, int priority) -{ - struct r8180_priv *priv = ieee80211_priv(dev); - u32 *tail; - u32 *head; - int ret; - - switch (priority) { - case MANAGE_PRIORITY: - head = priv->txmapringhead; - tail = priv->txmapringtail; - break; - case BK_PRIORITY: - head = priv->txbkpringhead; - tail = priv->txbkpringtail; - break; - case BE_PRIORITY: - head = priv->txbepringhead; - tail = priv->txbepringtail; - break; - case VI_PRIORITY: - head = priv->txvipringhead; - tail = priv->txvipringtail; - break; - case VO_PRIORITY: - head = priv->txvopringhead; - tail = priv->txvopringtail; - break; - case HI_PRIORITY: - head = priv->txhpringhead; - tail = priv->txhpringtail; - break; - default: - return -1; - } - - if (head <= tail) - ret = priv->txringcount - (tail - head)/8; - else - ret = (head - tail)/8; - - if (ret > priv->txringcount) - DMESG("BUG"); - - return ret; -} - -static short check_nic_enought_desc(struct net_device *dev, int priority) -{ - struct r8180_priv *priv = ieee80211_priv(dev); - struct ieee80211_device *ieee = netdev_priv(dev); - int requiredbyte, required; - - requiredbyte = priv->ieee80211->fts + sizeof(struct ieee80211_header_data); - - if (ieee->current_network.QoS_Enable) - requiredbyte += 2; - - required = requiredbyte / (priv->txbuffsize-4); - - if (requiredbyte % priv->txbuffsize) - required++; - - /* for now we keep two free descriptor as a safety boundary - * between the tail and the head - */ - - return (required+2 < get_curr_tx_free_desc(dev, priority)); -} - -void fix_tx_fifo(struct net_device *dev) -{ - struct r8180_priv *priv = (struct r8180_priv *)ieee80211_priv(dev); - u32 *tmp; - int i; - - for (tmp = priv->txmapring, i = 0; - i < priv->txringcount; - tmp += 8, i++) { - *tmp = *tmp & ~(1<<31); - } - - for (tmp = priv->txbkpring, i = 0; - i < priv->txringcount; - tmp += 8, i++) { - *tmp = *tmp & ~(1<<31); - } - - for (tmp = priv->txbepring, i = 0; - i < priv->txringcount; - tmp += 8, i++) { - *tmp = *tmp & ~(1<<31); - } - for (tmp = priv->txvipring, i = 0; - i < priv->txringcount; - tmp += 8, i++) { - *tmp = *tmp & ~(1<<31); - } - - for (tmp = priv->txvopring, i = 0; - i < priv->txringcount; - tmp += 8, i++) { - *tmp = *tmp & ~(1<<31); - } - - for (tmp = priv->txhpring, i = 0; - i < priv->txringcount; - tmp += 8, i++) { - *tmp = *tmp & ~(1<<31); - } - - for (tmp = priv->txbeaconring, i = 0; - i < priv->txbeaconcount; - tmp += 8, i++) { - *tmp = *tmp & ~(1<<31); - } - - priv->txmapringtail = priv->txmapring; - priv->txmapringhead = priv->txmapring; - priv->txmapbufstail = priv->txmapbufs; - - priv->txbkpringtail = priv->txbkpring; - priv->txbkpringhead = priv->txbkpring; - priv->txbkpbufstail = priv->txbkpbufs; - - priv->txbepringtail = priv->txbepring; - priv->txbepringhead = priv->txbepring; - priv->txbepbufstail = priv->txbepbufs; - - priv->txvipringtail = priv->txvipring; - priv->txvipringhead = priv->txvipring; - priv->txvipbufstail = priv->txvipbufs; - - priv->txvopringtail = priv->txvopring; - priv->txvopringhead = priv->txvopring; - priv->txvopbufstail = priv->txvopbufs; - - priv->txhpringtail = priv->txhpring; - priv->txhpringhead = priv->txhpring; - priv->txhpbufstail = priv->txhpbufs; - - priv->txbeaconringtail = priv->txbeaconring; - priv->txbeaconbufstail = priv->txbeaconbufs; - set_nic_txring(dev); - - ieee80211_reset_queue(priv->ieee80211); - priv->ack_tx_to_ieee = 0; -} - -void fix_rx_fifo(struct net_device *dev) -{ - struct r8180_priv *priv = (struct r8180_priv *)ieee80211_priv(dev); - u32 *tmp; - struct buffer *rxbuf; - u8 rx_desc_size; - - rx_desc_size = 8; /* 4*8 = 32 bytes */ - - for (tmp = priv->rxring, rxbuf = priv->rxbufferhead; - (tmp < (priv->rxring)+(priv->rxringcount)*rx_desc_size); - tmp += rx_desc_size, rxbuf = rxbuf->next) { - *(tmp+2) = rxbuf->dma; - *tmp = *tmp & ~0xfff; - *tmp = *tmp | priv->rxbuffersize; - *tmp |= (1<<31); - } - - priv->rxringtail = priv->rxring; - priv->rxbuffer = priv->rxbufferhead; - priv->rx_skb_complete = 1; - set_nic_rxring(dev); -} - -static void rtl8180_irq_disable(struct net_device *dev) -{ - struct r8180_priv *priv = (struct r8180_priv *)ieee80211_priv(dev); - - write_nic_dword(dev, IMR, 0); - force_pci_posting(dev); - priv->irq_enabled = 0; -} - -void rtl8180_set_mode(struct net_device *dev, int mode) -{ - u8 ecmd; - - ecmd = read_nic_byte(dev, EPROM_CMD); - ecmd = ecmd & ~EPROM_CMD_OPERATING_MODE_MASK; - ecmd = ecmd | (mode<<EPROM_CMD_OPERATING_MODE_SHIFT); - ecmd = ecmd & ~(1<<EPROM_CS_SHIFT); - ecmd = ecmd & ~(1<<EPROM_CK_SHIFT); - write_nic_byte(dev, EPROM_CMD, ecmd); -} - -void rtl8180_beacon_tx_enable(struct net_device *dev); - -void rtl8180_update_msr(struct net_device *dev) -{ - struct r8180_priv *priv = ieee80211_priv(dev); - u8 msr; - u32 rxconf; - - msr = read_nic_byte(dev, MSR); - msr &= ~MSR_LINK_MASK; - - rxconf = read_nic_dword(dev, RX_CONF); - - if (priv->ieee80211->state == IEEE80211_LINKED) { - if (priv->ieee80211->iw_mode == IW_MODE_ADHOC) - msr |= (MSR_LINK_ADHOC<<MSR_LINK_SHIFT); - else if (priv->ieee80211->iw_mode == IW_MODE_MASTER) - msr |= (MSR_LINK_MASTER<<MSR_LINK_SHIFT); - else if (priv->ieee80211->iw_mode == IW_MODE_INFRA) - msr |= (MSR_LINK_MANAGED<<MSR_LINK_SHIFT); - else - msr |= (MSR_LINK_NONE<<MSR_LINK_SHIFT); - rxconf |= (1<<RX_CHECK_BSSID_SHIFT); - - } else { - msr |= (MSR_LINK_NONE<<MSR_LINK_SHIFT); - rxconf &= ~(1<<RX_CHECK_BSSID_SHIFT); - } - - write_nic_byte(dev, MSR, msr); - write_nic_dword(dev, RX_CONF, rxconf); -} - -void rtl8180_set_chan(struct net_device *dev, short ch) -{ - struct r8180_priv *priv = (struct r8180_priv *)ieee80211_priv(dev); - - if ((ch > 14) || (ch < 1)) { - printk("In %s: Invalid chnanel %d\n", __func__, ch); - return; - } - - priv->chan = ch; - priv->rf_set_chan(dev, priv->chan); -} - -void set_nic_txring(struct net_device *dev) -{ - struct r8180_priv *priv = (struct r8180_priv *)ieee80211_priv(dev); - - write_nic_dword(dev, TX_MANAGEPRIORITY_RING_ADDR, priv->txmapringdma); - write_nic_dword(dev, TX_BKPRIORITY_RING_ADDR, priv->txbkpringdma); - write_nic_dword(dev, TX_BEPRIORITY_RING_ADDR, priv->txbepringdma); - write_nic_dword(dev, TX_VIPRIORITY_RING_ADDR, priv->txvipringdma); - write_nic_dword(dev, TX_VOPRIORITY_RING_ADDR, priv->txvopringdma); - write_nic_dword(dev, TX_HIGHPRIORITY_RING_ADDR, priv->txhpringdma); - write_nic_dword(dev, TX_BEACON_RING_ADDR, priv->txbeaconringdma); -} - -void rtl8180_beacon_tx_enable(struct net_device *dev) -{ - struct r8180_priv *priv = (struct r8180_priv *)ieee80211_priv(dev); - - rtl8180_set_mode(dev, EPROM_CMD_CONFIG); - priv->dma_poll_stop_mask &= ~(TPPOLLSTOP_BQ); - write_nic_byte(dev, TPPollStop, priv->dma_poll_mask); - rtl8180_set_mode(dev, EPROM_CMD_NORMAL); -} - -void rtl8180_beacon_tx_disable(struct net_device *dev) -{ - struct r8180_priv *priv = (struct r8180_priv *)ieee80211_priv(dev); - - rtl8180_set_mode(dev, EPROM_CMD_CONFIG); - priv->dma_poll_stop_mask |= TPPOLLSTOP_BQ; - write_nic_byte(dev, TPPollStop, priv->dma_poll_stop_mask); - rtl8180_set_mode(dev, EPROM_CMD_NORMAL); - -} - -void rtl8180_rtx_disable(struct net_device *dev) -{ - u8 cmd; - struct r8180_priv *priv = ieee80211_priv(dev); - - cmd = read_nic_byte(dev, CMD); - write_nic_byte(dev, CMD, cmd & - ~((1<<CMD_RX_ENABLE_SHIFT)|(1<<CMD_TX_ENABLE_SHIFT))); - force_pci_posting(dev); - mdelay(10); - - if (!priv->rx_skb_complete) - dev_kfree_skb_any(priv->rx_skb); -} - -static short alloc_tx_desc_ring(struct net_device *dev, int bufsize, int count, - int addr) -{ - int i; - u32 *desc; - u32 *tmp; - dma_addr_t dma_desc, dma_tmp; - struct r8180_priv *priv = (struct r8180_priv *)ieee80211_priv(dev); - struct pci_dev *pdev = priv->pdev; - void *buf; - - if ((bufsize & 0xfff) != bufsize) { - DMESGE("TX buffer allocation too large"); - return 0; - } - desc = (u32 *)pci_alloc_consistent(pdev, - sizeof(u32)*8*count+256, &dma_desc); - if (desc == NULL) - return -1; - - if (dma_desc & 0xff) - /* - * descriptor's buffer must be 256 byte aligned - * we shouldn't be here, since we set DMA mask ! - */ - WARN(1, "DMA buffer is not aligned\n"); - - tmp = desc; - - for (i = 0; i < count; i++) { - buf = (void *)pci_alloc_consistent(pdev, bufsize, &dma_tmp); - if (buf == NULL) - return -ENOMEM; - - switch (addr) { - case TX_MANAGEPRIORITY_RING_ADDR: - if (-1 == buffer_add(&(priv->txmapbufs), buf, dma_tmp, NULL)) { - DMESGE("Unable to allocate mem for buffer NP"); - return -ENOMEM; - } - break; - case TX_BKPRIORITY_RING_ADDR: - if (-1 == buffer_add(&(priv->txbkpbufs), buf, dma_tmp, NULL)) { - DMESGE("Unable to allocate mem for buffer LP"); - return -ENOMEM; - } - break; - case TX_BEPRIORITY_RING_ADDR: - if (-1 == buffer_add(&(priv->txbepbufs), buf, dma_tmp, NULL)) { - DMESGE("Unable to allocate mem for buffer NP"); - return -ENOMEM; - } - break; - case TX_VIPRIORITY_RING_ADDR: - if (-1 == buffer_add(&(priv->txvipbufs), buf, dma_tmp, NULL)) { - DMESGE("Unable to allocate mem for buffer LP"); - return -ENOMEM; - } - break; - case TX_VOPRIORITY_RING_ADDR: - if (-1 == buffer_add(&(priv->txvopbufs), buf, dma_tmp, NULL)) { - DMESGE("Unable to allocate mem for buffer NP"); - return -ENOMEM; - } - break; - case TX_HIGHPRIORITY_RING_ADDR: - if (-1 == buffer_add(&(priv->txhpbufs), buf, dma_tmp, NULL)) { - DMESGE("Unable to allocate mem for buffer HP"); - return -ENOMEM; - } - break; - case TX_BEACON_RING_ADDR: - if (-1 == buffer_add(&(priv->txbeaconbufs), buf, dma_tmp, NULL)) { - DMESGE("Unable to allocate mem for buffer BP"); - return -ENOMEM; - } - break; - } - *tmp = *tmp & ~(1<<31); /* descriptor empty, owned by the drv */ - *(tmp+2) = (u32)dma_tmp; - *(tmp+3) = bufsize; - - if (i+1 < count) - *(tmp+4) = (u32)dma_desc+((i+1)*8*4); - else - *(tmp+4) = (u32)dma_desc; - - tmp = tmp+8; - } - - switch (addr) { - case TX_MANAGEPRIORITY_RING_ADDR: - priv->txmapringdma = dma_desc; - priv->txmapring = desc; - break; - case TX_BKPRIORITY_RING_ADDR: - priv->txbkpringdma = dma_desc; - priv->txbkpring = desc; - break; - case TX_BEPRIORITY_RING_ADDR: - priv->txbepringdma = dma_desc; - priv->txbepring = desc; - break; - case TX_VIPRIORITY_RING_ADDR: - priv->txvipringdma = dma_desc; - priv->txvipring = desc; - break; - case TX_VOPRIORITY_RING_ADDR: - priv->txvopringdma = dma_desc; - priv->txvopring = desc; - break; - case TX_HIGHPRIORITY_RING_ADDR: - priv->txhpringdma = dma_desc; - priv->txhpring = desc; - break; - case TX_BEACON_RING_ADDR: - priv->txbeaconringdma = dma_desc; - priv->txbeaconring = desc; - break; - - } - - return 0; -} - -static void free_tx_desc_rings(struct net_device *dev) -{ - struct r8180_priv *priv = (struct r8180_priv *)ieee80211_priv(dev); - struct pci_dev *pdev = priv->pdev; - int count = priv->txringcount; - - pci_free_consistent(pdev, sizeof(u32)*8*count+256, - priv->txmapring, priv->txmapringdma); - buffer_free(dev, &(priv->txmapbufs), priv->txbuffsize, 1); - - pci_free_consistent(pdev, sizeof(u32)*8*count+256, - priv->txbkpring, priv->txbkpringdma); - buffer_free(dev, &(priv->txbkpbufs), priv->txbuffsize, 1); - - pci_free_consistent(pdev, sizeof(u32)*8*count+256, - priv->txbepring, priv->txbepringdma); - buffer_free(dev, &(priv->txbepbufs), priv->txbuffsize, 1); - - pci_free_consistent(pdev, sizeof(u32)*8*count+256, - priv->txvipring, priv->txvipringdma); - buffer_free(dev, &(priv->txvipbufs), priv->txbuffsize, 1); - - pci_free_consistent(pdev, sizeof(u32)*8*count+256, - priv->txvopring, priv->txvopringdma); - buffer_free(dev, &(priv->txvopbufs), priv->txbuffsize, 1); - - pci_free_consistent(pdev, sizeof(u32)*8*count+256, - priv->txhpring, priv->txhpringdma); - buffer_free(dev, &(priv->txhpbufs), priv->txbuffsize, 1); - - count = priv->txbeaconcount; - pci_free_consistent(pdev, sizeof(u32)*8*count+256, - priv->txbeaconring, priv->txbeaconringdma); - buffer_free(dev, &(priv->txbeaconbufs), priv->txbuffsize, 1); -} - -static void free_rx_desc_ring(struct net_device *dev) -{ - struct r8180_priv *priv = (struct r8180_priv *)ieee80211_priv(dev); - struct pci_dev *pdev = priv->pdev; - int count = priv->rxringcount; - - pci_free_consistent(pdev, sizeof(u32)*8*count+256, - priv->rxring, priv->rxringdma); - - buffer_free(dev, &(priv->rxbuffer), priv->rxbuffersize, 0); -} - -static short alloc_rx_desc_ring(struct net_device *dev, u16 bufsize, int count) -{ - int i; - u32 *desc; - u32 *tmp; - dma_addr_t dma_desc, dma_tmp; - struct r8180_priv *priv = (struct r8180_priv *)ieee80211_priv(dev); - struct pci_dev *pdev = priv->pdev; - void *buf; - u8 rx_desc_size; - - rx_desc_size = 8; /* 4*8 = 32 bytes */ - - if ((bufsize & 0xfff) != bufsize) { - DMESGE("RX buffer allocation too large"); - return -1; - } - - desc = (u32 *)pci_alloc_consistent(pdev, sizeof(u32)*rx_desc_size*count+256, - &dma_desc); - - if (dma_desc & 0xff) - /* - * descriptor's buffer must be 256 byte aligned - * should never happen since we specify the DMA mask - */ - WARN(1, "DMA buffer is not aligned\n"); - - priv->rxring = desc; - priv->rxringdma = dma_desc; - tmp = desc; - - for (i = 0; i < count; i++) { - buf = kmalloc(bufsize * sizeof(u8), GFP_ATOMIC); - if (buf == NULL) { - DMESGE("Failed to kmalloc RX buffer"); - return -1; - } - - dma_tmp = pci_map_single(pdev, buf, bufsize * sizeof(u8), - PCI_DMA_FROMDEVICE); - if (pci_dma_mapping_error(pdev, dma_tmp)) - return -1; - if (-1 == buffer_add(&(priv->rxbuffer), buf, dma_tmp, - &(priv->rxbufferhead))) { - DMESGE("Unable to allocate mem RX buf"); - return -1; - } - *tmp = 0; /* zero pads the header of the descriptor */ - *tmp = *tmp | (bufsize&0xfff); - *(tmp+2) = (u32)dma_tmp; - *tmp = *tmp | (1<<31); /* descriptor void, owned by the NIC */ - - tmp = tmp+rx_desc_size; - } - - *(tmp-rx_desc_size) = *(tmp-rx_desc_size) | (1<<30); /* this is the last descriptor */ - - return 0; -} - - -void set_nic_rxring(struct net_device *dev) -{ - u8 pgreg; - struct r8180_priv *priv = (struct r8180_priv *)ieee80211_priv(dev); - - pgreg = read_nic_byte(dev, PGSELECT); - write_nic_byte(dev, PGSELECT, pgreg & ~(1<<PGSELECT_PG_SHIFT)); - - write_nic_dword(dev, RXRING_ADDR, priv->rxringdma); -} - -void rtl8180_reset(struct net_device *dev) -{ - u8 cr; - - rtl8180_irq_disable(dev); - - cr = read_nic_byte(dev, CMD); - cr = cr & 2; - cr = cr | (1<<CMD_RST_SHIFT); - write_nic_byte(dev, CMD, cr); - - force_pci_posting(dev); - - mdelay(200); - - if (read_nic_byte(dev, CMD) & (1<<CMD_RST_SHIFT)) - DMESGW("Card reset timeout!"); - else - DMESG("Card successfully reset"); - - rtl8180_set_mode(dev, EPROM_CMD_LOAD); - force_pci_posting(dev); - mdelay(200); -} - -inline u16 ieeerate2rtlrate(int rate) -{ - switch (rate) { - case 10: - return 0; - case 20: - return 1; - case 55: - return 2; - case 110: - return 3; - case 60: - return 4; - case 90: - return 5; - case 120: - return 6; - case 180: - return 7; - case 240: - return 8; - case 360: - return 9; - case 480: - return 10; - case 540: - return 11; - default: - return 3; - } -} - -static u16 rtl_rate[] = {10, 20, 55, 110, 60, 90, 120, 180, 240, 360, 480, 540, 720}; - -inline u16 rtl8180_rate2rate(short rate) -{ - if (rate > 12) - return 10; - return rtl_rate[rate]; -} - -inline u8 rtl8180_IsWirelessBMode(u16 rate) -{ - if (((rate <= 110) && (rate != 60) && (rate != 90)) || (rate == 220)) - return 1; - else - return 0; -} - -u16 N_DBPSOfRate(u16 DataRate); - -static u16 ComputeTxTime(u16 FrameLength, u16 DataRate, u8 bManagementFrame, - u8 bShortPreamble) -{ - u16 FrameTime; - u16 N_DBPS; - u16 Ceiling; - - if (rtl8180_IsWirelessBMode(DataRate)) { - if (bManagementFrame || !bShortPreamble || DataRate == 10) - /* long preamble */ - FrameTime = (u16)(144+48+(FrameLength*8/(DataRate/10))); - else - /* short preamble */ - FrameTime = (u16)(72+24+(FrameLength*8/(DataRate/10))); - - if ((FrameLength*8 % (DataRate/10)) != 0) /* get the ceilling */ - FrameTime++; - } else { /* 802.11g DSSS-OFDM PLCP length field calculation. */ - N_DBPS = N_DBPSOfRate(DataRate); - Ceiling = (16 + 8*FrameLength + 6) / N_DBPS - + (((16 + 8*FrameLength + 6) % N_DBPS) ? 1 : 0); - FrameTime = (u16)(16 + 4 + 4*Ceiling + 6); - } - return FrameTime; -} - -u16 N_DBPSOfRate(u16 DataRate) -{ - u16 N_DBPS = 24; - - switch (DataRate) { - case 60: - N_DBPS = 24; - break; - case 90: - N_DBPS = 36; - break; - case 120: - N_DBPS = 48; - break; - case 180: - N_DBPS = 72; - break; - case 240: - N_DBPS = 96; - break; - case 360: - N_DBPS = 144; - break; - case 480: - N_DBPS = 192; - break; - case 540: - N_DBPS = 216; - break; - default: - break; - } - - return N_DBPS; -} - -/* - * For Netgear case, they want good-looking signal strength. - */ -static long NetgearSignalStrengthTranslate(long LastSS, long CurrSS) -{ - long RetSS; - - /* Step 1. Scale mapping. */ - if (CurrSS >= 71 && CurrSS <= 100) - RetSS = 90 + ((CurrSS - 70) / 3); - else if (CurrSS >= 41 && CurrSS <= 70) - RetSS = 78 + ((CurrSS - 40) / 3); - else if (CurrSS >= 31 && CurrSS <= 40) - RetSS = 66 + (CurrSS - 30); - else if (CurrSS >= 21 && CurrSS <= 30) - RetSS = 54 + (CurrSS - 20); - else if (CurrSS >= 5 && CurrSS <= 20) - RetSS = 42 + (((CurrSS - 5) * 2) / 3); - else if (CurrSS == 4) - RetSS = 36; - else if (CurrSS == 3) - RetSS = 27; - else if (CurrSS == 2) - RetSS = 18; - else if (CurrSS == 1) - RetSS = 9; - else - RetSS = CurrSS; - - /* Step 2. Smoothing. */ - if (LastSS > 0) - RetSS = ((LastSS * 5) + (RetSS) + 5) / 6; - - return RetSS; -} - -/* - * Translate 0-100 signal strength index into dBm. - */ -static long TranslateToDbm8185(u8 SignalStrengthIndex) -{ - long SignalPower; - - /* Translate to dBm (x=0.5y-95). */ - SignalPower = (long)((SignalStrengthIndex + 1) >> 1); - SignalPower -= 95; - - return SignalPower; -} - -/* - * Perform signal smoothing for dynamic mechanism. - * This is different with PerformSignalSmoothing8185 in smoothing formula. - * No dramatic adjustion is apply because dynamic mechanism need some degree - * of correctness. Ported from 8187B. - */ -static void PerformUndecoratedSignalSmoothing8185(struct r8180_priv *priv, - bool bCckRate) -{ - /* Determin the current packet is CCK rate. */ - priv->bCurCCKPkt = bCckRate; - - if (priv->UndecoratedSmoothedSS >= 0) - priv->UndecoratedSmoothedSS = ((priv->UndecoratedSmoothedSS * 5) + - (priv->SignalStrength * 10)) / 6; - else - priv->UndecoratedSmoothedSS = priv->SignalStrength * 10; - - priv->UndercorateSmoothedRxPower = ((priv->UndercorateSmoothedRxPower * 50) + - (priv->RxPower * 11)) / 60; - - if (bCckRate) - priv->CurCCKRSSI = priv->RSSI; - else - priv->CurCCKRSSI = 0; -} - - -/* - * This is rough RX isr handling routine - */ -static void rtl8180_rx(struct net_device *dev) -{ - struct r8180_priv *priv = (struct r8180_priv *)ieee80211_priv(dev); - struct sk_buff *tmp_skb; - short first, last; - u32 len; - int lastlen; - unsigned char quality, signal; - u8 rate; - u32 *tmp, *tmp2; - u8 rx_desc_size; - u8 padding; - char rxpower = 0; - u32 RXAGC = 0; - long RxAGC_dBm = 0; - u8 LNA = 0, BB = 0; - u8 LNA_gain[4] = {02, 17, 29, 39}; - u8 Antenna = 0; - struct ieee80211_hdr_4addr *hdr; - u16 fc, type; - u8 bHwError = 0, bCRC = 0, bICV = 0; - bool bCckRate = false; - u8 RSSI = 0; - long SignalStrengthIndex = 0; - struct ieee80211_rx_stats stats = { - .signal = 0, - .noise = -98, - .rate = 0, - .freq = IEEE80211_24GHZ_BAND, - }; - - stats.nic_type = NIC_8185B; - rx_desc_size = 8; - - if ((*(priv->rxringtail)) & (1<<31)) { - /* we have got an RX int, but the descriptor - * we are pointing is empty */ - - priv->stats.rxnodata++; - priv->ieee80211->stats.rx_errors++; - - tmp2 = NULL; - tmp = priv->rxringtail; - do { - if (tmp == priv->rxring) - tmp = priv->rxring + (priv->rxringcount - 1)*rx_desc_size; - else - tmp -= rx_desc_size; - - if (!(*tmp & (1<<31))) - tmp2 = tmp; - } while (tmp != priv->rxring); - - if (tmp2) - priv->rxringtail = tmp2; - } - - /* while there are filled descriptors */ - while (!(*(priv->rxringtail) & (1<<31))) { - if (*(priv->rxringtail) & (1<<26)) - DMESGW("RX buffer overflow"); - if (*(priv->rxringtail) & (1<<12)) - priv->stats.rxicverr++; - - if (*(priv->rxringtail) & (1<<27)) { - priv->stats.rxdmafail++; - /* DMESG("EE: RX DMA FAILED at buffer pointed by descriptor %x",(u32)priv->rxringtail); */ - goto drop; - } - - pci_dma_sync_single_for_cpu(priv->pdev, - priv->rxbuffer->dma, - priv->rxbuffersize * sizeof(u8), - PCI_DMA_FROMDEVICE); - - first = *(priv->rxringtail) & (1<<29) ? 1 : 0; - if (first) - priv->rx_prevlen = 0; - - last = *(priv->rxringtail) & (1<<28) ? 1 : 0; - if (last) { - lastlen = ((*priv->rxringtail) & 0xfff); - - /* if the last descriptor (that should - * tell us the total packet len) tell - * us something less than the descriptors - * len we had until now, then there is some - * problem.. - * workaround to prevent kernel panic - */ - if (lastlen < priv->rx_prevlen) - len = 0; - else - len = lastlen-priv->rx_prevlen; - - if (*(priv->rxringtail) & (1<<13)) { - if ((*(priv->rxringtail) & 0xfff) < 500) - priv->stats.rxcrcerrmin++; - else if ((*(priv->rxringtail) & 0x0fff) > 1000) - priv->stats.rxcrcerrmax++; - else - priv->stats.rxcrcerrmid++; - - } - - } else { - len = priv->rxbuffersize; - } - - if (first && last) { - padding = ((*(priv->rxringtail+3))&(0x04000000))>>26; - } else if (first) { - padding = ((*(priv->rxringtail+3))&(0x04000000))>>26; - if (padding) - len -= 2; - } else { - padding = 0; - } - padding = 0; - priv->rx_prevlen += len; - - if (priv->rx_prevlen > MAX_FRAG_THRESHOLD + 100) { - /* HW is probably passing several buggy frames - * without FD or LD flag set. - * Throw this garbage away to prevent skb - * memory exhausting - */ - if (!priv->rx_skb_complete) - dev_kfree_skb_any(priv->rx_skb); - priv->rx_skb_complete = 1; - } - - signal = (unsigned char)(((*(priv->rxringtail+3)) & (0x00ff0000))>>16); - signal = (signal & 0xfe) >> 1; - - quality = (unsigned char)((*(priv->rxringtail+3)) & (0xff)); - - stats.mac_time[0] = *(priv->rxringtail+1); - stats.mac_time[1] = *(priv->rxringtail+2); - rxpower = ((char)(((*(priv->rxringtail+4)) & (0x00ff0000))>>16))/2 - 42; - RSSI = ((u8)(((*(priv->rxringtail+3)) & (0x0000ff00))>>8)) & (0x7f); - - rate = ((*(priv->rxringtail)) & - ((1<<23)|(1<<22)|(1<<21)|(1<<20)))>>20; - - stats.rate = rtl8180_rate2rate(rate); - Antenna = (((*(priv->rxringtail+3)) & (0x00008000)) == 0) ? 0 : 1; - if (!rtl8180_IsWirelessBMode(stats.rate)) { /* OFDM rate. */ - RxAGC_dBm = rxpower+1; /* bias */ - } else { /* CCK rate. */ - RxAGC_dBm = signal; /* bit 0 discard */ - - LNA = (u8) (RxAGC_dBm & 0x60) >> 5; /* bit 6~ bit 5 */ - BB = (u8) (RxAGC_dBm & 0x1F); /* bit 4 ~ bit 0 */ - - RxAGC_dBm = -(LNA_gain[LNA] + (BB*2)); /* Pin_11b=-(LNA_gain+BB_gain) (dBm) */ - - RxAGC_dBm += 4; /* bias */ - } - - if (RxAGC_dBm & 0x80) /* absolute value */ - RXAGC = ~(RxAGC_dBm)+1; - bCckRate = rtl8180_IsWirelessBMode(stats.rate); - /* Translate RXAGC into 1-100. */ - if (!rtl8180_IsWirelessBMode(stats.rate)) { /* OFDM rate. */ - if (RXAGC > 90) - RXAGC = 90; - else if (RXAGC < 25) - RXAGC = 25; - RXAGC = (90-RXAGC)*100/65; - } else { /* CCK rate. */ - if (RXAGC > 95) - RXAGC = 95; - else if (RXAGC < 30) - RXAGC = 30; - RXAGC = (95-RXAGC)*100/65; - } - priv->SignalStrength = (u8)RXAGC; - priv->RecvSignalPower = RxAGC_dBm; - priv->RxPower = rxpower; - priv->RSSI = RSSI; - /* SQ translation formula is provided by SD3 DZ. 2006.06.27 */ - if (quality >= 127) - quality = 1; /*0; */ /* 0 will cause epc to show signal zero , walk around now; */ - else if (quality < 27) - quality = 100; - else - quality = 127 - quality; - priv->SignalQuality = quality; - - stats.signal = (u8)quality; /*priv->wstats.qual.level = priv->SignalStrength; */ - stats.signalstrength = RXAGC; - if (stats.signalstrength > 100) - stats.signalstrength = 100; - stats.signalstrength = (stats.signalstrength * 70)/100 + 30; - /* printk("==========================>rx : RXAGC is %d,signalstrength is %d\n",RXAGC,stats.signalstrength); */ - stats.rssi = priv->wstats.qual.qual = priv->SignalQuality; - stats.noise = priv->wstats.qual.noise = 100 - priv->wstats.qual.qual; - bHwError = (((*(priv->rxringtail)) & (0x00000fff)) == 4080) | - (((*(priv->rxringtail)) & (0x04000000)) != 0) | - (((*(priv->rxringtail)) & (0x08000000)) != 0) | - (((~(*(priv->rxringtail))) & (0x10000000)) != 0) | - (((~(*(priv->rxringtail))) & (0x20000000)) != 0); - bCRC = ((*(priv->rxringtail)) & (0x00002000)) >> 13; - bICV = ((*(priv->rxringtail)) & (0x00001000)) >> 12; - hdr = (struct ieee80211_hdr_4addr *)priv->rxbuffer->buf; - fc = le16_to_cpu(hdr->frame_ctl); - type = WLAN_FC_GET_TYPE(fc); - - if (IEEE80211_FTYPE_CTL != type && - !bHwError && !bCRC && !bICV && - eqMacAddr(priv->ieee80211->current_network.bssid, - fc & IEEE80211_FCTL_TODS ? hdr->addr1 : - fc & IEEE80211_FCTL_FROMDS ? hdr->addr2 : - hdr->addr3)) { - - /* Perform signal smoothing for dynamic - * mechanism on demand. This is different - * with PerformSignalSmoothing8185 in smoothing - * fomula. No dramatic adjustion is apply - * because dynamic mechanism need some degree - * of correctness. */ - PerformUndecoratedSignalSmoothing8185(priv, bCckRate); - - /* For good-looking singal strength. */ - SignalStrengthIndex = NetgearSignalStrengthTranslate( - priv->LastSignalStrengthInPercent, - priv->SignalStrength); - - priv->LastSignalStrengthInPercent = SignalStrengthIndex; - priv->Stats_SignalStrength = TranslateToDbm8185((u8)SignalStrengthIndex); - /* - * We need more correct power of received packets and the "SignalStrength" of RxStats is beautified, - * so we record the correct power here. - */ - priv->Stats_SignalQuality = (long)(priv->Stats_SignalQuality * 5 + (long)priv->SignalQuality + 5) / 6; - priv->Stats_RecvSignalPower = (long)(priv->Stats_RecvSignalPower * 5 + priv->RecvSignalPower - 1) / 6; - - /* Figure out which antenna that received the last packet. */ - priv->LastRxPktAntenna = Antenna ? 1 : 0; /* 0: aux, 1: main. */ - SwAntennaDiversityRxOk8185(dev, priv->SignalStrength); - } - - if (first) { - if (!priv->rx_skb_complete) { - /* seems that HW sometimes fails to receive and - doesn't provide the last descriptor */ - dev_kfree_skb_any(priv->rx_skb); - priv->stats.rxnolast++; - } - priv->rx_skb = dev_alloc_skb(len+2); - if (!priv->rx_skb) - goto drop; - - priv->rx_skb_complete = 0; - priv->rx_skb->dev = dev; - } else { - /* if we are here we should have already RXed - * the first frame. - * If we get here and the skb is not allocated then - * we have just throw out garbage (skb not allocated) - * and we are still rxing garbage.... - */ - if (!priv->rx_skb_complete) { - - tmp_skb = dev_alloc_skb(priv->rx_skb->len+len+2); - - if (!tmp_skb) - goto drop; - - tmp_skb->dev = dev; - - memcpy(skb_put(tmp_skb, priv->rx_skb->len), - priv->rx_skb->data, - priv->rx_skb->len); - - dev_kfree_skb_any(priv->rx_skb); - - priv->rx_skb = tmp_skb; - } - } - - if (!priv->rx_skb_complete) { - if (padding) { - memcpy(skb_put(priv->rx_skb, len), - (((unsigned char *)priv->rxbuffer->buf) + 2), len); - } else { - memcpy(skb_put(priv->rx_skb, len), - priv->rxbuffer->buf, len); - } - } - - if (last && !priv->rx_skb_complete) { - if (priv->rx_skb->len > 4) - skb_trim(priv->rx_skb, priv->rx_skb->len-4); - if (!ieee80211_rtl_rx(priv->ieee80211, - priv->rx_skb, &stats)) - dev_kfree_skb_any(priv->rx_skb); - priv->rx_skb_complete = 1; - } - - pci_dma_sync_single_for_device(priv->pdev, - priv->rxbuffer->dma, - priv->rxbuffersize * sizeof(u8), - PCI_DMA_FROMDEVICE); - -drop: /* this is used when we have not enough mem */ - /* restore the descriptor */ - *(priv->rxringtail+2) = priv->rxbuffer->dma; - *(priv->rxringtail) = *(priv->rxringtail) & ~0xfff; - *(priv->rxringtail) = - *(priv->rxringtail) | priv->rxbuffersize; - - *(priv->rxringtail) = - *(priv->rxringtail) | (1<<31); - - priv->rxringtail += rx_desc_size; - if (priv->rxringtail >= - (priv->rxring)+(priv->rxringcount)*rx_desc_size) - priv->rxringtail = priv->rxring; - - priv->rxbuffer = (priv->rxbuffer->next); - } -} - - -static void rtl8180_dma_kick(struct net_device *dev, int priority) -{ - struct r8180_priv *priv = (struct r8180_priv *)ieee80211_priv(dev); - - rtl8180_set_mode(dev, EPROM_CMD_CONFIG); - write_nic_byte(dev, TX_DMA_POLLING, - (1 << (priority + 1)) | priv->dma_poll_mask); - rtl8180_set_mode(dev, EPROM_CMD_NORMAL); - - force_pci_posting(dev); -} - -static void rtl8180_data_hard_stop(struct net_device *dev) -{ - struct r8180_priv *priv = (struct r8180_priv *)ieee80211_priv(dev); - - rtl8180_set_mode(dev, EPROM_CMD_CONFIG); - priv->dma_poll_stop_mask |= TPPOLLSTOP_AC_VIQ; - write_nic_byte(dev, TPPollStop, priv->dma_poll_stop_mask); - rtl8180_set_mode(dev, EPROM_CMD_NORMAL); -} - -static void rtl8180_data_hard_resume(struct net_device *dev) -{ - struct r8180_priv *priv = (struct r8180_priv *)ieee80211_priv(dev); - - rtl8180_set_mode(dev, EPROM_CMD_CONFIG); - priv->dma_poll_stop_mask &= ~(TPPOLLSTOP_AC_VIQ); - write_nic_byte(dev, TPPollStop, priv->dma_poll_stop_mask); - rtl8180_set_mode(dev, EPROM_CMD_NORMAL); -} - -/* - * This function TX data frames when the ieee80211 stack requires this. - * It checks also if we need to stop the ieee tx queue, eventually do it - */ -static void rtl8180_hard_data_xmit(struct sk_buff *skb, struct net_device *dev, - int rate) -{ - struct r8180_priv *priv = (struct r8180_priv *)ieee80211_priv(dev); - int mode; - struct ieee80211_hdr_3addr *h = (struct ieee80211_hdr_3addr *) skb->data; - short morefrag = (h->frame_control) & IEEE80211_FCTL_MOREFRAGS; - unsigned long flags; - int priority; - - mode = priv->ieee80211->iw_mode; - - rate = ieeerate2rtlrate(rate); - /* - * This function doesn't require lock because we make - * sure it's called with the tx_lock already acquired. - * this come from the kernel's hard_xmit callback (through - * the ieee stack, or from the try_wake_queue (again through - * the ieee stack. - */ - priority = AC2Q(skb->priority); - spin_lock_irqsave(&priv->tx_lock, flags); - - if (priv->ieee80211->bHwRadioOff) { - spin_unlock_irqrestore(&priv->tx_lock, flags); - - return; - } - - if (!check_nic_enought_desc(dev, priority)) { - DMESGW("Error: no descriptor left by previous TX (avail %d) ", - get_curr_tx_free_desc(dev, priority)); - ieee80211_rtl_stop_queue(priv->ieee80211); - } - rtl8180_tx(dev, skb->data, skb->len, priority, morefrag, 0, rate); - if (!check_nic_enought_desc(dev, priority)) - ieee80211_rtl_stop_queue(priv->ieee80211); - - spin_unlock_irqrestore(&priv->tx_lock, flags); -} - -/* - * This is a rough attempt to TX a frame - * This is called by the ieee 80211 stack to TX management frames. - * If the ring is full packets are dropped (for data frame the queue - * is stopped before this can happen). For this reason it is better - * if the descriptors are larger than the largest management frame - * we intend to TX: i'm unsure what the HW does if it will not find - * the last fragment of a frame because it has been dropped... - * Since queues for Management and Data frames are different we - * might use a different lock than tx_lock (for example mgmt_tx_lock) - */ -/* these function may loop if invoked with 0 descriptors or 0 len buffer */ -static int rtl8180_hard_start_xmit(struct sk_buff *skb, struct net_device *dev) -{ - struct r8180_priv *priv = (struct r8180_priv *)ieee80211_priv(dev); - unsigned long flags; - int priority; - - priority = MANAGE_PRIORITY; - - spin_lock_irqsave(&priv->tx_lock, flags); - - if (priv->ieee80211->bHwRadioOff) { - spin_unlock_irqrestore(&priv->tx_lock, flags); - dev_kfree_skb_any(skb); - return NETDEV_TX_OK; - } - - rtl8180_tx(dev, skb->data, skb->len, priority, - 0, 0, ieeerate2rtlrate(priv->ieee80211->basic_rate)); - - priv->ieee80211->stats.tx_bytes += skb->len; - priv->ieee80211->stats.tx_packets++; - spin_unlock_irqrestore(&priv->tx_lock, flags); - - dev_kfree_skb_any(skb); - return NETDEV_TX_OK; -} - -/* longpre 144+48 shortpre 72+24 */ -u16 rtl8180_len2duration(u32 len, short rate, short *ext) -{ - u16 duration; - u16 drift; - *ext = 0; - - switch (rate) { - case 0: /* 1mbps */ - *ext = 0; - duration = ((len+4)<<4) / 0x2; - drift = ((len+4)<<4) % 0x2; - if (drift == 0) - break; - duration++; - break; - case 1: /* 2mbps */ - *ext = 0; - duration = ((len+4)<<4) / 0x4; - drift = ((len+4)<<4) % 0x4; - if (drift == 0) - break; - duration++; - break; - case 2: /* 5.5mbps */ - *ext = 0; - duration = ((len+4)<<4) / 0xb; - drift = ((len+4)<<4) % 0xb; - if (drift == 0) - break; - duration++; - break; - default: - case 3: /* 11mbps */ - *ext = 0; - duration = ((len+4)<<4) / 0x16; - drift = ((len+4)<<4) % 0x16; - if (drift == 0) - break; - duration++; - if (drift > 6) - break; - *ext = 1; - break; - } - - return duration; -} - -static void rtl8180_prepare_beacon(struct net_device *dev) -{ - struct r8180_priv *priv = (struct r8180_priv *)ieee80211_priv(dev); - struct sk_buff *skb; - - u16 word = read_nic_word(dev, BcnItv); - word &= ~BcnItv_BcnItv; /* clear Bcn_Itv */ - word |= cpu_to_le16(priv->ieee80211->current_network.beacon_interval); /* 0x64; */ - write_nic_word(dev, BcnItv, word); - - skb = ieee80211_get_beacon(priv->ieee80211); - if (skb) { - rtl8180_tx(dev, skb->data, skb->len, BEACON_PRIORITY, - 0, 0, ieeerate2rtlrate(priv->ieee80211->basic_rate)); - dev_kfree_skb_any(skb); - } -} - -/* - * This function do the real dirty work: it enqueues a TX command - * descriptor in the ring buffer, copyes the frame in a TX buffer - * and kicks the NIC to ensure it does the DMA transfer. - */ -short rtl8180_tx(struct net_device *dev, u8 *txbuf, int len, int priority, - short morefrag, short descfrag, int rate) -{ - struct r8180_priv *priv = ieee80211_priv(dev); - u32 *tail, *temp_tail; - u32 *begin; - u32 *buf; - int i; - int remain; - int buflen; - int count; - struct buffer *buflist; - struct ieee80211_hdr_3addr *frag_hdr = (struct ieee80211_hdr_3addr *)txbuf; - u8 dest[ETH_ALEN]; - u8 bUseShortPreamble = 0; - u8 bCTSEnable = 0; - u8 bRTSEnable = 0; - u16 Duration = 0; - u16 RtsDur = 0; - u16 ThisFrameTime = 0; - u16 TxDescDuration = 0; - bool ownbit_flag = false; - - switch (priority) { - case MANAGE_PRIORITY: - tail = priv->txmapringtail; - begin = priv->txmapring; - buflist = priv->txmapbufstail; - count = priv->txringcount; - break; - case BK_PRIORITY: - tail = priv->txbkpringtail; - begin = priv->txbkpring; - buflist = priv->txbkpbufstail; - count = priv->txringcount; - break; - case BE_PRIORITY: - tail = priv->txbepringtail; - begin = priv->txbepring; - buflist = priv->txbepbufstail; - count = priv->txringcount; - break; - case VI_PRIORITY: - tail = priv->txvipringtail; - begin = priv->txvipring; - buflist = priv->txvipbufstail; - count = priv->txringcount; - break; - case VO_PRIORITY: - tail = priv->txvopringtail; - begin = priv->txvopring; - buflist = priv->txvopbufstail; - count = priv->txringcount; - break; - case HI_PRIORITY: - tail = priv->txhpringtail; - begin = priv->txhpring; - buflist = priv->txhpbufstail; - count = priv->txringcount; - break; - case BEACON_PRIORITY: - tail = priv->txbeaconringtail; - begin = priv->txbeaconring; - buflist = priv->txbeaconbufstail; - count = priv->txbeaconcount; - break; - default: - return -1; - break; - } - - memcpy(&dest, frag_hdr->addr1, ETH_ALEN); - if (is_multicast_ether_addr(dest)) { - Duration = 0; - RtsDur = 0; - bRTSEnable = 0; - bCTSEnable = 0; - - ThisFrameTime = ComputeTxTime(len + sCrcLng, rtl8180_rate2rate(rate), - 0, bUseShortPreamble); - TxDescDuration = ThisFrameTime; - } else { /* Unicast packet */ - u16 AckTime; - - /* YJ,add,080828,for Keep alive */ - priv->NumTxUnicast++; - - /* Figure out ACK rate according to BSS basic rate - * and Tx rate. */ - AckTime = ComputeTxTime(14, 10, 0, 0); /* AckCTSLng = 14 use 1M bps send */ - - if (((len + sCrcLng) > priv->rts) && priv->rts) { /* RTS/CTS. */ - u16 RtsTime, CtsTime; - /* u16 CtsRate; */ - bRTSEnable = 1; - bCTSEnable = 0; - - /* Rate and time required for RTS. */ - RtsTime = ComputeTxTime(sAckCtsLng/8, priv->ieee80211->basic_rate, 0, 0); - /* Rate and time required for CTS. */ - CtsTime = ComputeTxTime(14, 10, 0, 0); /* AckCTSLng = 14 use 1M bps send */ - - /* Figure out time required to transmit this frame. */ - ThisFrameTime = ComputeTxTime(len + sCrcLng, - rtl8180_rate2rate(rate), - 0, - bUseShortPreamble); - - /* RTS-CTS-ThisFrame-ACK. */ - RtsDur = CtsTime + ThisFrameTime + AckTime + 3*aSifsTime; - - TxDescDuration = RtsTime + RtsDur; - } else { /* Normal case. */ - bCTSEnable = 0; - bRTSEnable = 0; - RtsDur = 0; - - ThisFrameTime = ComputeTxTime(len + sCrcLng, rtl8180_rate2rate(rate), - 0, bUseShortPreamble); - TxDescDuration = ThisFrameTime + aSifsTime + AckTime; - } - - if (!(frag_hdr->frame_control & IEEE80211_FCTL_MOREFRAGS)) { - /* ThisFrame-ACK. */ - Duration = aSifsTime + AckTime; - } else { /* One or more fragments remained. */ - u16 NextFragTime; - NextFragTime = ComputeTxTime(len + sCrcLng, /* pretend following packet length equal current packet */ - rtl8180_rate2rate(rate), - 0, - bUseShortPreamble); - - /* ThisFrag-ACk-NextFrag-ACK. */ - Duration = NextFragTime + 3*aSifsTime + 2*AckTime; - } - - } /* End of Unicast packet */ - - frag_hdr->duration_id = Duration; - - buflen = priv->txbuffsize; - remain = len; - temp_tail = tail; - - while (remain != 0) { - mb(); - if (!buflist) { - DMESGE("TX buffer error, cannot TX frames. pri %d.", priority); - return -1; - } - buf = buflist->buf; - - if ((*tail & (1 << 31)) && (priority != BEACON_PRIORITY)) { - DMESGW("No more TX desc, returning %x of %x", - remain, len); - priv->stats.txrdu++; - return remain; - } - - *tail = 0; /* zeroes header */ - *(tail+1) = 0; - *(tail+3) = 0; - *(tail+5) = 0; - *(tail+6) = 0; - *(tail+7) = 0; - - /* FIXME: this should be triggered by HW encryption parameters.*/ - *tail |= (1<<15); /* no encrypt */ - - if (remain == len && !descfrag) { - ownbit_flag = false; - *tail = *tail | (1<<29); /* fist segment of the packet */ - *tail = *tail | (len); - } else { - ownbit_flag = true; - } - - for (i = 0; i < buflen && remain > 0; i++, remain--) { - ((u8 *)buf)[i] = txbuf[i]; /* copy data into descriptor pointed DMAble buffer */ - if (remain == 4 && i+4 >= buflen) - break; - /* ensure the last desc has at least 4 bytes payload */ - - } - txbuf = txbuf + i; - *(tail+3) = *(tail+3) & ~0xfff; - *(tail+3) = *(tail+3) | i; /* buffer length */ - /* Use short preamble or not */ - if (priv->ieee80211->current_network.capability&WLAN_CAPABILITY_SHORT_PREAMBLE) - if (priv->plcp_preamble_mode == 1 && rate != 0) /* short mode now, not long! */ - ; /* *tail |= (1<<16); */ /* enable short preamble mode. */ - - if (bCTSEnable) - *tail |= (1<<18); - - if (bRTSEnable) { /* rts enable */ - *tail |= ((ieeerate2rtlrate(priv->ieee80211->basic_rate))<<19); /* RTS RATE */ - *tail |= (1<<23); /* rts enable */ - *(tail+1) |= (RtsDur&0xffff); /* RTS Duration */ - } - *(tail+3) |= ((TxDescDuration&0xffff)<<16); /* DURATION */ - /* *(tail+3) |= (0xe6<<16); */ - *(tail+5) |= (11<<8); /* (priv->retry_data<<8); */ /* retry lim; */ - - *tail = *tail | ((rate&0xf) << 24); - - if (morefrag) - *tail = (*tail) | (1<<17); /* more fragment */ - if (!remain) - *tail = (*tail) | (1<<28); /* last segment of frame */ - - *(tail+5) = *(tail+5)|(2<<27); - *(tail+7) = *(tail+7)|(1<<4); - - wmb(); - if (ownbit_flag) - *tail = *tail | (1<<31); /* descriptor ready to be txed */ - - if ((tail - begin)/8 == count-1) - tail = begin; - else - tail = tail+8; - - buflist = buflist->next; - - mb(); - - switch (priority) { - case MANAGE_PRIORITY: - priv->txmapringtail = tail; - priv->txmapbufstail = buflist; - break; - case BK_PRIORITY: - priv->txbkpringtail = tail; - priv->txbkpbufstail = buflist; - break; - case BE_PRIORITY: - priv->txbepringtail = tail; - priv->txbepbufstail = buflist; - break; - case VI_PRIORITY: - priv->txvipringtail = tail; - priv->txvipbufstail = buflist; - break; - case VO_PRIORITY: - priv->txvopringtail = tail; - priv->txvopbufstail = buflist; - break; - case HI_PRIORITY: - priv->txhpringtail = tail; - priv->txhpbufstail = buflist; - break; - case BEACON_PRIORITY: - /* - * The HW seems to be happy with the 1st - * descriptor filled and the 2nd empty... - * So always update descriptor 1 and never - * touch 2nd - */ - break; - } - } - *temp_tail = *temp_tail | (1<<31); /* descriptor ready to be txed */ - rtl8180_dma_kick(dev, priority); - - return 0; -} - -void rtl8180_irq_rx_tasklet(struct r8180_priv *priv); - -static void rtl8180_link_change(struct net_device *dev) -{ - struct r8180_priv *priv = ieee80211_priv(dev); - u16 beacon_interval; - struct ieee80211_network *net = &priv->ieee80211->current_network; - - rtl8180_update_msr(dev); - - rtl8180_set_mode(dev, EPROM_CMD_CONFIG); - - write_nic_dword(dev, BSSID, ((u32 *)net->bssid)[0]); - write_nic_word(dev, BSSID+4, ((u16 *)net->bssid)[2]); - - beacon_interval = read_nic_word(dev, BEACON_INTERVAL); - beacon_interval &= ~BEACON_INTERVAL_MASK; - beacon_interval |= net->beacon_interval; - write_nic_word(dev, BEACON_INTERVAL, beacon_interval); - - rtl8180_set_mode(dev, EPROM_CMD_NORMAL); - - rtl8180_set_chan(dev, priv->chan); -} - -static void rtl8180_rq_tx_ack(struct net_device *dev) -{ - - struct r8180_priv *priv = ieee80211_priv(dev); - - write_nic_byte(dev, CONFIG4, read_nic_byte(dev, CONFIG4) | CONFIG4_PWRMGT); - priv->ack_tx_to_ieee = 1; -} - -static short rtl8180_is_tx_queue_empty(struct net_device *dev) -{ - - struct r8180_priv *priv = ieee80211_priv(dev); - u32 *d; - - for (d = priv->txmapring; - d < priv->txmapring + priv->txringcount; d += 8) - if (*d & (1<<31)) - return 0; - - for (d = priv->txbkpring; - d < priv->txbkpring + priv->txringcount; d += 8) - if (*d & (1<<31)) - return 0; - - for (d = priv->txbepring; - d < priv->txbepring + priv->txringcount; d += 8) - if (*d & (1<<31)) - return 0; - - for (d = priv->txvipring; - d < priv->txvipring + priv->txringcount; d += 8) - if (*d & (1<<31)) - return 0; - - for (d = priv->txvopring; - d < priv->txvopring + priv->txringcount; d += 8) - if (*d & (1<<31)) - return 0; - - for (d = priv->txhpring; - d < priv->txhpring + priv->txringcount; d += 8) - if (*d & (1<<31)) - return 0; - return 1; -} - -static void rtl8180_hw_wakeup(struct net_device *dev) -{ - unsigned long flags; - struct r8180_priv *priv = ieee80211_priv(dev); - - spin_lock_irqsave(&priv->ps_lock, flags); - write_nic_byte(dev, CONFIG4, read_nic_byte(dev, CONFIG4) & ~CONFIG4_PWRMGT); - if (priv->rf_wakeup) - priv->rf_wakeup(dev); - spin_unlock_irqrestore(&priv->ps_lock, flags); -} - -static void rtl8180_hw_sleep_down(struct net_device *dev) -{ - unsigned long flags; - struct r8180_priv *priv = ieee80211_priv(dev); - - spin_lock_irqsave(&priv->ps_lock, flags); - if (priv->rf_sleep) - priv->rf_sleep(dev); - spin_unlock_irqrestore(&priv->ps_lock, flags); -} - -static void rtl8180_hw_sleep(struct net_device *dev, u32 th, u32 tl) -{ - struct r8180_priv *priv = ieee80211_priv(dev); - u32 rb = jiffies; - unsigned long flags; - - spin_lock_irqsave(&priv->ps_lock, flags); - - /* - * Writing HW register with 0 equals to disable - * the timer, that is not really what we want - */ - tl -= MSECS(4+16+7); - - /* - * If the interval in witch we are requested to sleep is too - * short then give up and remain awake - */ - if (((tl >= rb) && (tl-rb) <= MSECS(MIN_SLEEP_TIME)) - || ((rb > tl) && (rb-tl) < MSECS(MIN_SLEEP_TIME))) { - spin_unlock_irqrestore(&priv->ps_lock, flags); - printk("too short to sleep\n"); - return; - } - - { - u32 tmp = (tl > rb) ? (tl-rb) : (rb-tl); - - priv->DozePeriodInPast2Sec += jiffies_to_msecs(tmp); - /* as tl may be less than rb */ - queue_delayed_work(priv->ieee80211->wq, &priv->ieee80211->hw_wakeup_wq, tmp); - } - /* - * If we suspect the TimerInt is gone beyond tl - * while setting it, then give up - */ - - if (((tl > rb) && ((tl-rb) > MSECS(MAX_SLEEP_TIME))) || - ((tl < rb) && ((rb-tl) > MSECS(MAX_SLEEP_TIME)))) { - spin_unlock_irqrestore(&priv->ps_lock, flags); - return; - } - - queue_work(priv->ieee80211->wq, (void *)&priv->ieee80211->hw_sleep_wq); - spin_unlock_irqrestore(&priv->ps_lock, flags); -} - -static void rtl8180_wmm_param_update(struct work_struct *work) -{ - struct ieee80211_device *ieee = container_of(work, struct ieee80211_device, wmm_param_update_wq); - struct net_device *dev = ieee->dev; - u8 *ac_param = (u8 *)(ieee->current_network.wmm_param); - u8 mode = ieee->current_network.mode; - AC_CODING eACI; - AC_PARAM AcParam; - PAC_PARAM pAcParam; - u8 i; - - if (!ieee->current_network.QoS_Enable) { - /* legacy ac_xx_param update */ - AcParam.longData = 0; - AcParam.f.AciAifsn.f.AIFSN = 2; /* Follow 802.11 DIFS. */ - AcParam.f.AciAifsn.f.ACM = 0; - AcParam.f.Ecw.f.ECWmin = 3; /* Follow 802.11 CWmin. */ - AcParam.f.Ecw.f.ECWmax = 7; /* Follow 802.11 CWmax. */ - AcParam.f.TXOPLimit = 0; - for (eACI = 0; eACI < AC_MAX; eACI++) { - AcParam.f.AciAifsn.f.ACI = (u8)eACI; - { - u8 u1bAIFS; - u32 u4bAcParam; - pAcParam = (PAC_PARAM)(&AcParam); - /* Retrieve parameters to update. */ - u1bAIFS = pAcParam->f.AciAifsn.f.AIFSN * (((mode&IEEE_G) == IEEE_G) ? 9 : 20) + aSifsTime; - u4bAcParam = ((((u32)(pAcParam->f.TXOPLimit))<<AC_PARAM_TXOP_LIMIT_OFFSET)| - (((u32)(pAcParam->f.Ecw.f.ECWmax))<<AC_PARAM_ECW_MAX_OFFSET)| - (((u32)(pAcParam->f.Ecw.f.ECWmin))<<AC_PARAM_ECW_MIN_OFFSET)| - (((u32)u1bAIFS) << AC_PARAM_AIFS_OFFSET)); - switch (eACI) { - case AC1_BK: - write_nic_dword(dev, AC_BK_PARAM, u4bAcParam); - break; - case AC0_BE: - write_nic_dword(dev, AC_BE_PARAM, u4bAcParam); - break; - case AC2_VI: - write_nic_dword(dev, AC_VI_PARAM, u4bAcParam); - break; - case AC3_VO: - write_nic_dword(dev, AC_VO_PARAM, u4bAcParam); - break; - default: - pr_warn("SetHwReg8185():invalid ACI: %d!\n", - eACI); - break; - } - } - } - return; - } - - for (i = 0; i < AC_MAX; i++) { - /* AcParam.longData = 0; */ - pAcParam = (AC_PARAM *)ac_param; - { - AC_CODING eACI; - u8 u1bAIFS; - u32 u4bAcParam; - - /* Retrieve parameters to update. */ - eACI = pAcParam->f.AciAifsn.f.ACI; - /* Mode G/A: slotTimeTimer = 9; Mode B: 20 */ - u1bAIFS = pAcParam->f.AciAifsn.f.AIFSN * (((mode&IEEE_G) == IEEE_G) ? 9 : 20) + aSifsTime; - u4bAcParam = ((((u32)(pAcParam->f.TXOPLimit)) << AC_PARAM_TXOP_LIMIT_OFFSET) | - (((u32)(pAcParam->f.Ecw.f.ECWmax)) << AC_PARAM_ECW_MAX_OFFSET) | - (((u32)(pAcParam->f.Ecw.f.ECWmin)) << AC_PARAM_ECW_MIN_OFFSET) | - (((u32)u1bAIFS) << AC_PARAM_AIFS_OFFSET)); - - switch (eACI) { - case AC1_BK: - write_nic_dword(dev, AC_BK_PARAM, u4bAcParam); - break; - case AC0_BE: - write_nic_dword(dev, AC_BE_PARAM, u4bAcParam); - break; - case AC2_VI: - write_nic_dword(dev, AC_VI_PARAM, u4bAcParam); - break; - case AC3_VO: - write_nic_dword(dev, AC_VO_PARAM, u4bAcParam); - break; - default: - pr_warn("SetHwReg8185(): invalid ACI: %d !\n", - eACI); - break; - } - } - ac_param += (sizeof(AC_PARAM)); - } -} - -void rtl8180_restart_wq(struct work_struct *work); -/* void rtl8180_rq_tx_ack(struct work_struct *work); */ -void rtl8180_watch_dog_wq(struct work_struct *work); -void rtl8180_hw_wakeup_wq(struct work_struct *work); -void rtl8180_hw_sleep_wq(struct work_struct *work); -void rtl8180_sw_antenna_wq(struct work_struct *work); -void rtl8180_watch_dog(struct net_device *dev); - -static void watch_dog_adaptive(unsigned long data) -{ - struct r8180_priv *priv = ieee80211_priv((struct net_device *)data); - - if (!priv->up) { - DMESG("<----watch_dog_adaptive():driver is not up!\n"); - return; - } - - /* Tx High Power Mechanism. */ - if (CheckHighPower((struct net_device *)data)) - queue_work(priv->ieee80211->wq, (void *)&priv->ieee80211->tx_pw_wq); - - /* Tx Power Tracking on 87SE. */ - if (CheckTxPwrTracking((struct net_device *)data)) - TxPwrTracking87SE((struct net_device *)data); - - /* Perform DIG immediately. */ - if (CheckDig((struct net_device *)data)) - queue_work(priv->ieee80211->wq, (void *)&priv->ieee80211->hw_dig_wq); - rtl8180_watch_dog((struct net_device *)data); - - queue_work(priv->ieee80211->wq, (void *)&priv->ieee80211->GPIOChangeRFWorkItem); - - priv->watch_dog_timer.expires = jiffies + MSECS(IEEE80211_WATCH_DOG_TIME); - add_timer(&priv->watch_dog_timer); -} - -static CHANNEL_LIST ChannelPlan[] = { - {{1,2,3,4,5,6,7,8,9,10,11,36,40,44,48,52,56,60,64},19}, /* FCC */ - {{1,2,3,4,5,6,7,8,9,10,11},11}, /* IC */ - {{1,2,3,4,5,6,7,8,9,10,11,12,13,36,40,44,48,52,56,60,64},21}, /* ETSI */ - {{1,2,3,4,5,6,7,8,9,10,11,12,13,36,40,44,48,52,56,60,64},21}, /* Spain. Change to ETSI. */ - {{1,2,3,4,5,6,7,8,9,10,11,12,13,36,40,44,48,52,56,60,64},21}, /* France. Change to ETSI. */ - {{14,36,40,44,48,52,56,60,64},9}, /* MKK */ - {{1,2,3,4,5,6,7,8,9,10,11,12,13,14, 36,40,44,48,52,56,60,64},22},/* MKK1 */ - {{1,2,3,4,5,6,7,8,9,10,11,12,13,36,40,44,48,52,56,60,64},21}, /* Israel. */ - {{1,2,3,4,5,6,7,8,9,10,11,12,13,34,38,42,46},17}, /* For 11a , TELEC */ - {{1,2,3,4,5,6,7,8,9,10,11,12,13,14},14}, /* For Global Domain. 1-11:active scan, 12-14 passive scan. //+YJ, 080626 */ - {{1,2,3,4,5,6,7,8,9,10,11,12,13},13} /* world wide 13: ch1~ch11 active scan, ch12~13 passive //lzm add 080826 */ -}; - -static void rtl8180_set_channel_map(u8 channel_plan, - struct ieee80211_device *ieee) -{ - int i; - - /* lzm add 080826 */ - ieee->MinPassiveChnlNum = MAX_CHANNEL_NUMBER+1; - ieee->IbssStartChnl = 0; - - switch (channel_plan) { - case COUNTRY_CODE_FCC: - case COUNTRY_CODE_IC: - case COUNTRY_CODE_ETSI: - case COUNTRY_CODE_SPAIN: - case COUNTRY_CODE_FRANCE: - case COUNTRY_CODE_MKK: - case COUNTRY_CODE_MKK1: - case COUNTRY_CODE_ISRAEL: - case COUNTRY_CODE_TELEC: - { - Dot11d_Init(ieee); - ieee->bGlobalDomain = false; - if (ChannelPlan[channel_plan].Len != 0) { - /* Clear old channel map */ - memset(GET_DOT11D_INFO(ieee)->channel_map, 0, sizeof(GET_DOT11D_INFO(ieee)->channel_map)); - /* Set new channel map */ - for (i = 0; i < ChannelPlan[channel_plan].Len; i++) { - if (ChannelPlan[channel_plan].Channel[i] <= 14) - GET_DOT11D_INFO(ieee)->channel_map[ChannelPlan[channel_plan].Channel[i]] = 1; - } - } - break; - } - case COUNTRY_CODE_GLOBAL_DOMAIN: - { - GET_DOT11D_INFO(ieee)->bEnabled = false; - Dot11d_Reset(ieee); - ieee->bGlobalDomain = true; - break; - } - case COUNTRY_CODE_WORLD_WIDE_13_INDEX:/* lzm add 080826 */ - { - ieee->MinPassiveChnlNum = 12; - ieee->IbssStartChnl = 10; - break; - } - default: - { - Dot11d_Init(ieee); - ieee->bGlobalDomain = false; - memset(GET_DOT11D_INFO(ieee)->channel_map, 0, sizeof(GET_DOT11D_INFO(ieee)->channel_map)); - for (i = 1; i <= 14; i++) - GET_DOT11D_INFO(ieee)->channel_map[i] = 1; - break; - } - } -} - -void GPIOChangeRFWorkItemCallBack(struct work_struct *work); - -/* YJ,add,080828 */ -static void rtl8180_statistics_init(struct Stats *pstats) -{ - memset(pstats, 0, sizeof(struct Stats)); -} - -static void rtl8180_link_detect_init(plink_detect_t plink_detect) -{ - memset(plink_detect, 0, sizeof(link_detect_t)); - plink_detect->SlotNum = DEFAULT_SLOT_NUM; -} - -/* YJ,add,080828,end */ -static void rtl8187se_eeprom_register_read(struct eeprom_93cx6 *eeprom) -{ - struct net_device *dev = eeprom->data; - u8 reg = read_nic_byte(dev, EPROM_CMD); - - eeprom->reg_data_in = reg & RTL818X_EEPROM_CMD_WRITE; - eeprom->reg_data_out = reg & RTL818X_EEPROM_CMD_READ; - eeprom->reg_data_clock = reg & RTL818X_EEPROM_CMD_CK; - eeprom->reg_chip_select = reg & RTL818X_EEPROM_CMD_CS; -} - -static void rtl8187se_eeprom_register_write(struct eeprom_93cx6 *eeprom) -{ - struct net_device *dev = eeprom->data; - u8 reg = 2 << 6; - - if (eeprom->reg_data_in) - reg |= RTL818X_EEPROM_CMD_WRITE; - if (eeprom->reg_data_out) - reg |= RTL818X_EEPROM_CMD_READ; - if (eeprom->reg_data_clock) - reg |= RTL818X_EEPROM_CMD_CK; - if (eeprom->reg_chip_select) - reg |= RTL818X_EEPROM_CMD_CS; - - write_nic_byte(dev, EPROM_CMD, reg); - read_nic_byte(dev, EPROM_CMD); - udelay(10); -} - -static short rtl8180_init(struct net_device *dev) -{ - struct r8180_priv *priv = ieee80211_priv(dev); - u16 word; - u16 usValue; - u16 tmpu16; - int i, j; - struct eeprom_93cx6 eeprom; - u16 eeprom_val; - - eeprom.data = dev; - eeprom.register_read = rtl8187se_eeprom_register_read; - eeprom.register_write = rtl8187se_eeprom_register_write; - eeprom.width = PCI_EEPROM_WIDTH_93C46; - - eeprom_93cx6_read(&eeprom, EEPROM_COUNTRY_CODE>>1, &eeprom_val); - priv->channel_plan = eeprom_val & 0xFF; - if (priv->channel_plan > COUNTRY_CODE_GLOBAL_DOMAIN) { - printk("rtl8180_init:Error channel plan! Set to default.\n"); - priv->channel_plan = 0; - } - - DMESG("Channel plan is %d\n", priv->channel_plan); - rtl8180_set_channel_map(priv->channel_plan, priv->ieee80211); - - /* FIXME: these constants are placed in a bad pleace. */ - priv->txbuffsize = 2048; /* 1024; */ - priv->txringcount = 32; /* 32; */ - priv->rxbuffersize = 2048; /* 1024; */ - priv->rxringcount = 64; /* 32; */ - priv->txbeaconcount = 2; - priv->rx_skb_complete = 1; - - priv->RFChangeInProgress = false; - priv->SetRFPowerStateInProgress = false; - priv->RFProgType = 0; - - priv->irq_enabled = 0; - - rtl8180_statistics_init(&priv->stats); - rtl8180_link_detect_init(&priv->link_detect); - - priv->ack_tx_to_ieee = 0; - priv->ieee80211->current_network.beacon_interval = DEFAULT_BEACONINTERVAL; - priv->ieee80211->iw_mode = IW_MODE_INFRA; - priv->ieee80211->softmac_features = IEEE_SOFTMAC_SCAN | - IEEE_SOFTMAC_ASSOCIATE | IEEE_SOFTMAC_PROBERQ | - IEEE_SOFTMAC_PROBERS | IEEE_SOFTMAC_TX_QUEUE; - priv->ieee80211->active_scan = 1; - priv->ieee80211->rate = 110; /* 11 mbps */ - priv->ieee80211->modulation = IEEE80211_CCK_MODULATION; - priv->ieee80211->host_encrypt = 1; - priv->ieee80211->host_decrypt = 1; - priv->ieee80211->sta_wake_up = rtl8180_hw_wakeup; - priv->ieee80211->ps_request_tx_ack = rtl8180_rq_tx_ack; - priv->ieee80211->enter_sleep_state = rtl8180_hw_sleep; - priv->ieee80211->ps_is_queue_empty = rtl8180_is_tx_queue_empty; - - priv->hw_wep = hwwep; - priv->dev = dev; - priv->retry_rts = DEFAULT_RETRY_RTS; - priv->retry_data = DEFAULT_RETRY_DATA; - priv->RFChangeInProgress = false; - priv->SetRFPowerStateInProgress = false; - priv->RFProgType = 0; - priv->bInactivePs = true; /* false; */ - priv->ieee80211->bInactivePs = priv->bInactivePs; - priv->bSwRfProcessing = false; - priv->eRFPowerState = eRfOff; - priv->RfOffReason = 0; - priv->LedStrategy = SW_LED_MODE0; - priv->TxPollingTimes = 0; /* lzm add 080826 */ - priv->bLeisurePs = true; - priv->dot11PowerSaveMode = eActive; - priv->AdMinCheckPeriod = 5; - priv->AdMaxCheckPeriod = 10; - priv->AdMaxRxSsThreshold = 30; /* 60->30 */ - priv->AdRxSsThreshold = 20; /* 50->20 */ - priv->AdCheckPeriod = priv->AdMinCheckPeriod; - priv->AdTickCount = 0; - priv->AdRxSignalStrength = -1; - priv->RegSwAntennaDiversityMechanism = 0; - priv->RegDefaultAntenna = 0; - priv->SignalStrength = 0; - priv->AdRxOkCnt = 0; - priv->CurrAntennaIndex = 0; - priv->AdRxSsBeforeSwitched = 0; - init_timer(&priv->SwAntennaDiversityTimer); - priv->SwAntennaDiversityTimer.data = (unsigned long)dev; - priv->SwAntennaDiversityTimer.function = (void *)SwAntennaDiversityTimerCallback; - priv->bDigMechanism = true; - priv->InitialGain = 6; - priv->bXtalCalibration = false; - priv->XtalCal_Xin = 0; - priv->XtalCal_Xout = 0; - priv->bTxPowerTrack = false; - priv->ThermalMeter = 0; - priv->FalseAlarmRegValue = 0; - priv->RegDigOfdmFaUpTh = 0xc; /* Upper threshold of OFDM false alarm, which is used in DIG. */ - priv->DIG_NumberFallbackVote = 0; - priv->DIG_NumberUpgradeVote = 0; - priv->LastSignalStrengthInPercent = 0; - priv->Stats_SignalStrength = 0; - priv->LastRxPktAntenna = 0; - priv->SignalQuality = 0; /* in 0-100 index. */ - priv->Stats_SignalQuality = 0; - priv->RecvSignalPower = 0; /* in dBm. */ - priv->Stats_RecvSignalPower = 0; - priv->AdMainAntennaRxOkCnt = 0; - priv->AdAuxAntennaRxOkCnt = 0; - priv->bHWAdSwitched = false; - priv->bRegHighPowerMechanism = true; - priv->RegHiPwrUpperTh = 77; - priv->RegHiPwrLowerTh = 75; - priv->RegRSSIHiPwrUpperTh = 70; - priv->RegRSSIHiPwrLowerTh = 20; - priv->bCurCCKPkt = false; - priv->UndecoratedSmoothedSS = -1; - priv->bToUpdateTxPwr = false; - priv->CurCCKRSSI = 0; - priv->RxPower = 0; - priv->RSSI = 0; - priv->NumTxOkTotal = 0; - priv->NumTxUnicast = 0; - priv->keepAliveLevel = DEFAULT_KEEP_ALIVE_LEVEL; - priv->CurrRetryCnt = 0; - priv->LastRetryCnt = 0; - priv->LastTxokCnt = 0; - priv->LastRxokCnt = 0; - priv->LastRetryRate = 0; - priv->bTryuping = 0; - priv->CurrTxRate = 0; - priv->CurrRetryRate = 0; - priv->TryupingCount = 0; - priv->TryupingCountNoData = 0; - priv->TryDownCountLowData = 0; - priv->LastTxOKBytes = 0; - priv->LastFailTxRate = 0; - priv->LastFailTxRateSS = 0; - priv->FailTxRateCount = 0; - priv->LastTxThroughput = 0; - priv->NumTxOkBytesTotal = 0; - priv->ForcedDataRate = 0; - priv->RegBModeGainStage = 1; - - priv->promisc = (dev->flags & IFF_PROMISC) ? 1 : 0; - spin_lock_init(&priv->irq_th_lock); - spin_lock_init(&priv->tx_lock); - spin_lock_init(&priv->ps_lock); - spin_lock_init(&priv->rf_ps_lock); - sema_init(&priv->wx_sem, 1); - INIT_WORK(&priv->reset_wq, (void *)rtl8180_restart_wq); - INIT_DELAYED_WORK(&priv->ieee80211->hw_wakeup_wq, - (void *)rtl8180_hw_wakeup_wq); - INIT_DELAYED_WORK(&priv->ieee80211->hw_sleep_wq, - (void *)rtl8180_hw_sleep_wq); - INIT_WORK(&priv->ieee80211->wmm_param_update_wq, - (void *)rtl8180_wmm_param_update); - INIT_DELAYED_WORK(&priv->ieee80211->rate_adapter_wq, - (void *)rtl8180_rate_adapter); - INIT_DELAYED_WORK(&priv->ieee80211->hw_dig_wq, - (void *)rtl8180_hw_dig_wq); - INIT_DELAYED_WORK(&priv->ieee80211->tx_pw_wq, - (void *)rtl8180_tx_pw_wq); - INIT_DELAYED_WORK(&priv->ieee80211->GPIOChangeRFWorkItem, - (void *) GPIOChangeRFWorkItemCallBack); - tasklet_init(&priv->irq_rx_tasklet, - (void(*)(unsigned long)) rtl8180_irq_rx_tasklet, - (unsigned long)priv); - - init_timer(&priv->watch_dog_timer); - priv->watch_dog_timer.data = (unsigned long)dev; - priv->watch_dog_timer.function = watch_dog_adaptive; - - init_timer(&priv->rateadapter_timer); - priv->rateadapter_timer.data = (unsigned long)dev; - priv->rateadapter_timer.function = timer_rate_adaptive; - priv->RateAdaptivePeriod = RATE_ADAPTIVE_TIMER_PERIOD; - priv->bEnhanceTxPwr = false; - - priv->ieee80211->softmac_hard_start_xmit = rtl8180_hard_start_xmit; - priv->ieee80211->set_chan = rtl8180_set_chan; - priv->ieee80211->link_change = rtl8180_link_change; - priv->ieee80211->softmac_data_hard_start_xmit = rtl8180_hard_data_xmit; - priv->ieee80211->data_hard_stop = rtl8180_data_hard_stop; - priv->ieee80211->data_hard_resume = rtl8180_data_hard_resume; - - priv->ieee80211->init_wmmparam_flag = 0; - - priv->ieee80211->start_send_beacons = rtl8180_start_tx_beacon; - priv->ieee80211->stop_send_beacons = rtl8180_beacon_tx_disable; - priv->ieee80211->fts = DEFAULT_FRAG_THRESHOLD; - - priv->ShortRetryLimit = 7; - priv->LongRetryLimit = 7; - priv->EarlyRxThreshold = 7; - - priv->TransmitConfig = (1<<TCR_DurProcMode_OFFSET) | - (7<<TCR_MXDMA_OFFSET) | - (priv->ShortRetryLimit<<TCR_SRL_OFFSET) | - (priv->LongRetryLimit<<TCR_LRL_OFFSET); - - priv->ReceiveConfig = RCR_AMF | RCR_ADF | RCR_ACF | - RCR_AB | RCR_AM | RCR_APM | - (7<<RCR_MXDMA_OFFSET) | - (priv->EarlyRxThreshold<<RCR_FIFO_OFFSET) | - (priv->EarlyRxThreshold == 7 ? - RCR_ONLYERLPKT : 0); - - priv->IntrMask = IMR_TMGDOK | IMR_TBDER | - IMR_THPDER | IMR_THPDOK | - IMR_TVODER | IMR_TVODOK | - IMR_TVIDER | IMR_TVIDOK | - IMR_TBEDER | IMR_TBEDOK | - IMR_TBKDER | IMR_TBKDOK | - IMR_RDU | - IMR_RER | IMR_ROK | - IMR_RQoSOK; - - priv->InitialGain = 6; - - DMESG("MAC controller is a RTL8187SE b/g"); - - priv->ieee80211->modulation |= IEEE80211_OFDM_MODULATION; - priv->ieee80211->short_slot = 1; - - eeprom_93cx6_read(&eeprom, EEPROM_SW_REVD_OFFSET, &usValue); - DMESG("usValue is %#hx\n", usValue); - /* 3Read AntennaDiversity */ - - /* SW Antenna Diversity. */ - priv->EEPROMSwAntennaDiversity = (usValue & EEPROM_SW_AD_MASK) == - EEPROM_SW_AD_ENABLE; - - /* Default Antenna to use. */ - priv->EEPROMDefaultAntenna1 = (usValue & EEPROM_DEF_ANT_MASK) == - EEPROM_DEF_ANT_1; - - if (priv->RegSwAntennaDiversityMechanism == 0) /* Auto */ - /* 0: default from EEPROM. */ - priv->bSwAntennaDiverity = priv->EEPROMSwAntennaDiversity; - else - /* 1:disable antenna diversity, 2: enable antenna diversity. */ - priv->bSwAntennaDiverity = priv->RegSwAntennaDiversityMechanism == 2; - - if (priv->RegDefaultAntenna == 0) - /* 0: default from EEPROM. */ - priv->bDefaultAntenna1 = priv->EEPROMDefaultAntenna1; - else - /* 1: main, 2: aux. */ - priv->bDefaultAntenna1 = priv->RegDefaultAntenna == 2; - - priv->plcp_preamble_mode = 2; - /* the eeprom type is stored in RCR register bit #6 */ - if (RCR_9356SEL & read_nic_dword(dev, RCR)) - priv->epromtype = EPROM_93c56; - else - priv->epromtype = EPROM_93c46; - - eeprom_93cx6_multiread(&eeprom, 0x7, (__le16 *) - dev->dev_addr, 3); - - for (i = 1, j = 0; i < 14; i += 2, j++) { - eeprom_93cx6_read(&eeprom, EPROM_TXPW_CH1_2 + j, &word); - priv->chtxpwr[i] = word & 0xff; - priv->chtxpwr[i+1] = (word & 0xff00)>>8; - } - for (i = 1, j = 0; i < 14; i += 2, j++) { - eeprom_93cx6_read(&eeprom, EPROM_TXPW_OFDM_CH1_2 + j, &word); - priv->chtxpwr_ofdm[i] = word & 0xff; - priv->chtxpwr_ofdm[i+1] = (word & 0xff00) >> 8; - } - - /* 3Read crystal calibration and thermal meter indication on 87SE. */ - eeprom_93cx6_read(&eeprom, EEPROM_RSV>>1, &tmpu16); - - /* Crystal calibration for Xin and Xout resp. */ - priv->XtalCal_Xout = tmpu16 & EEPROM_XTAL_CAL_XOUT_MASK; - priv->XtalCal_Xin = (tmpu16 & EEPROM_XTAL_CAL_XIN_MASK) >> 4; - if ((tmpu16 & EEPROM_XTAL_CAL_ENABLE) >> 12) - priv->bXtalCalibration = true; - - /* Thermal meter reference indication. */ - priv->ThermalMeter = (u8)((tmpu16 & EEPROM_THERMAL_METER_MASK) >> 8); - if ((tmpu16 & EEPROM_THERMAL_METER_ENABLE) >> 13) - priv->bTxPowerTrack = true; - - priv->rf_sleep = rtl8225z4_rf_sleep; - priv->rf_wakeup = rtl8225z4_rf_wakeup; - DMESGW("**PLEASE** REPORT SUCCESSFUL/UNSUCCESSFUL TO Realtek!"); - - priv->rf_close = rtl8225z2_rf_close; - priv->rf_init = rtl8225z2_rf_init; - priv->rf_set_chan = rtl8225z2_rf_set_chan; - priv->rf_set_sens = NULL; - - if (0 != alloc_rx_desc_ring(dev, priv->rxbuffersize, priv->rxringcount)) - return -ENOMEM; - - if (0 != alloc_tx_desc_ring(dev, priv->txbuffsize, priv->txringcount, - TX_MANAGEPRIORITY_RING_ADDR)) - return -ENOMEM; - - if (0 != alloc_tx_desc_ring(dev, priv->txbuffsize, priv->txringcount, - TX_BKPRIORITY_RING_ADDR)) - return -ENOMEM; - - if (0 != alloc_tx_desc_ring(dev, priv->txbuffsize, priv->txringcount, - TX_BEPRIORITY_RING_ADDR)) - return -ENOMEM; - - if (0 != alloc_tx_desc_ring(dev, priv->txbuffsize, priv->txringcount, - TX_VIPRIORITY_RING_ADDR)) - return -ENOMEM; - - if (0 != alloc_tx_desc_ring(dev, priv->txbuffsize, priv->txringcount, - TX_VOPRIORITY_RING_ADDR)) - return -ENOMEM; - - if (0 != alloc_tx_desc_ring(dev, priv->txbuffsize, priv->txringcount, - TX_HIGHPRIORITY_RING_ADDR)) - return -ENOMEM; - - if (0 != alloc_tx_desc_ring(dev, priv->txbuffsize, priv->txbeaconcount, - TX_BEACON_RING_ADDR)) - return -ENOMEM; - - if (request_irq(dev->irq, rtl8180_interrupt, IRQF_SHARED, dev->name, dev)) { - DMESGE("Error allocating IRQ %d", dev->irq); - return -1; - } else { - priv->irq = dev->irq; - DMESG("IRQ %d", dev->irq); - } - - return 0; -} - -void rtl8180_no_hw_wep(struct net_device *dev) -{ -} - -void rtl8180_set_hw_wep(struct net_device *dev) -{ - struct r8180_priv *priv = ieee80211_priv(dev); - u8 pgreg; - u8 security; - u32 key0_word4; - - pgreg = read_nic_byte(dev, PGSELECT); - write_nic_byte(dev, PGSELECT, pgreg & ~(1<<PGSELECT_PG_SHIFT)); - - key0_word4 = read_nic_dword(dev, KEY0+4+4+4); - key0_word4 &= ~0xff; - key0_word4 |= priv->key0[3] & 0xff; - write_nic_dword(dev, KEY0, (priv->key0[0])); - write_nic_dword(dev, KEY0+4, (priv->key0[1])); - write_nic_dword(dev, KEY0+4+4, (priv->key0[2])); - write_nic_dword(dev, KEY0+4+4+4, (key0_word4)); - - security = read_nic_byte(dev, SECURITY); - security |= (1<<SECURITY_WEP_TX_ENABLE_SHIFT); - security |= (1<<SECURITY_WEP_RX_ENABLE_SHIFT); - security &= ~SECURITY_ENCRYP_MASK; - security |= (SECURITY_ENCRYP_104<<SECURITY_ENCRYP_SHIFT); - - write_nic_byte(dev, SECURITY, security); - - DMESG("key %x %x %x %x", read_nic_dword(dev, KEY0+4+4+4), - read_nic_dword(dev, KEY0+4+4), read_nic_dword(dev, KEY0+4), - read_nic_dword(dev, KEY0)); -} - - -void rtl8185_rf_pins_enable(struct net_device *dev) -{ - /* u16 tmp; */ - /* tmp = read_nic_word(dev, RFPinsEnable); */ - write_nic_word(dev, RFPinsEnable, 0x1fff); /* | tmp); */ -} - -void rtl8185_set_anaparam2(struct net_device *dev, u32 a) -{ - u8 conf3; - - rtl8180_set_mode(dev, EPROM_CMD_CONFIG); - - conf3 = read_nic_byte(dev, CONFIG3); - write_nic_byte(dev, CONFIG3, conf3 | (1<<CONFIG3_ANAPARAM_W_SHIFT)); - write_nic_dword(dev, ANAPARAM2, a); - - conf3 = read_nic_byte(dev, CONFIG3); - write_nic_byte(dev, CONFIG3, conf3 & ~(1<<CONFIG3_ANAPARAM_W_SHIFT)); - rtl8180_set_mode(dev, EPROM_CMD_NORMAL); -} - -void rtl8180_set_anaparam(struct net_device *dev, u32 a) -{ - u8 conf3; - - rtl8180_set_mode(dev, EPROM_CMD_CONFIG); - - conf3 = read_nic_byte(dev, CONFIG3); - write_nic_byte(dev, CONFIG3, conf3 | (1<<CONFIG3_ANAPARAM_W_SHIFT)); - write_nic_dword(dev, ANAPARAM, a); - - conf3 = read_nic_byte(dev, CONFIG3); - write_nic_byte(dev, CONFIG3, conf3 & ~(1<<CONFIG3_ANAPARAM_W_SHIFT)); - rtl8180_set_mode(dev, EPROM_CMD_NORMAL); -} - -void rtl8185_tx_antenna(struct net_device *dev, u8 ant) -{ - write_nic_byte(dev, TX_ANTENNA, ant); - force_pci_posting(dev); - mdelay(1); -} - -static void rtl8185_write_phy(struct net_device *dev, u8 adr, u32 data) -{ - u32 phyw; - - adr |= 0x80; - - phyw = ((data<<8) | adr); - - /* Note that, we must write 0xff7c after 0x7d-0x7f to write BB register. */ - write_nic_byte(dev, 0x7f, ((phyw & 0xff000000) >> 24)); - write_nic_byte(dev, 0x7e, ((phyw & 0x00ff0000) >> 16)); - write_nic_byte(dev, 0x7d, ((phyw & 0x0000ff00) >> 8)); - write_nic_byte(dev, 0x7c, ((phyw & 0x000000ff))); - - /* this is ok to fail when we write AGC table. check for AGC table might be - * done by masking with 0x7f instead of 0xff - */ - /* if (phyr != (data&0xff)) DMESGW("Phy write timeout %x %x %x", phyr, data, adr); */ -} - -inline void write_phy_ofdm(struct net_device *dev, u8 adr, u32 data) -{ - data = data & 0xff; - rtl8185_write_phy(dev, adr, data); -} - -void write_phy_cck(struct net_device *dev, u8 adr, u32 data) -{ - data = data & 0xff; - rtl8185_write_phy(dev, adr, data | 0x10000); -} - -/* - * This configures registers for beacon tx and enables it via - * rtl8180_beacon_tx_enable(). rtl8180_beacon_tx_disable() might - * be used to stop beacon transmission - */ -void rtl8180_start_tx_beacon(struct net_device *dev) -{ - u16 word; - - DMESG("Enabling beacon TX"); - rtl8180_prepare_beacon(dev); - rtl8180_irq_disable(dev); - rtl8180_beacon_tx_enable(dev); - - word = read_nic_word(dev, AtimWnd) & ~AtimWnd_AtimWnd; - write_nic_word(dev, AtimWnd, word); /* word |= */ - - word = read_nic_word(dev, BintrItv); - word &= ~BintrItv_BintrItv; - word |= 1000; /* priv->ieee80211->current_network.beacon_interval * - ((priv->txbeaconcount > 1)?(priv->txbeaconcount-1):1); - // FIXME: check if correct ^^ worked with 0x3e8; - */ - write_nic_word(dev, BintrItv, word); - - rtl8180_set_mode(dev, EPROM_CMD_NORMAL); - - rtl8185b_irq_enable(dev); -} - -static struct net_device_stats *rtl8180_stats(struct net_device *dev) -{ - struct r8180_priv *priv = ieee80211_priv(dev); - - return &priv->ieee80211->stats; -} - -/* - * Change current and default preamble mode. - */ -static bool MgntActSet_802_11_PowerSaveMode(struct r8180_priv *priv, - RT_PS_MODE rtPsMode) -{ - /* Currently, we do not change power save mode on IBSS mode. */ - if (priv->ieee80211->iw_mode == IW_MODE_ADHOC) - return false; - - priv->ieee80211->ps = rtPsMode; - - return true; -} - -static void LeisurePSEnter(struct r8180_priv *priv) -{ - if (priv->bLeisurePs) { - if (priv->ieee80211->ps == IEEE80211_PS_DISABLED) - /* IEEE80211_PS_ENABLE */ - MgntActSet_802_11_PowerSaveMode(priv, IEEE80211_PS_MBCAST|IEEE80211_PS_UNICAST); - } -} - -static void LeisurePSLeave(struct r8180_priv *priv) -{ - if (priv->bLeisurePs) { - if (priv->ieee80211->ps != IEEE80211_PS_DISABLED) - MgntActSet_802_11_PowerSaveMode(priv, IEEE80211_PS_DISABLED); - } -} - -void rtl8180_hw_wakeup_wq(struct work_struct *work) -{ - struct delayed_work *dwork = to_delayed_work(work); - struct ieee80211_device *ieee = container_of(dwork, struct ieee80211_device, hw_wakeup_wq); - struct net_device *dev = ieee->dev; - - rtl8180_hw_wakeup(dev); -} - -void rtl8180_hw_sleep_wq(struct work_struct *work) -{ - struct delayed_work *dwork = to_delayed_work(work); - struct ieee80211_device *ieee = container_of(dwork, struct ieee80211_device, hw_sleep_wq); - struct net_device *dev = ieee->dev; - - rtl8180_hw_sleep_down(dev); -} - -static void MgntLinkKeepAlive(struct r8180_priv *priv) -{ - if (priv->keepAliveLevel == 0) - return; - - if (priv->ieee80211->state == IEEE80211_LINKED) { - /* - * Keep-Alive. - */ - - if ((priv->keepAliveLevel == 2) || - (priv->link_detect.LastNumTxUnicast == priv->NumTxUnicast && - priv->link_detect.LastNumRxUnicast == priv->ieee80211->NumRxUnicast) - ) { - priv->link_detect.IdleCount++; - - /* - * Send a Keep-Alive packet packet to AP if we had been idle for a while. - */ - if (priv->link_detect.IdleCount >= ((KEEP_ALIVE_INTERVAL / CHECK_FOR_HANG_PERIOD)-1)) { - priv->link_detect.IdleCount = 0; - ieee80211_sta_ps_send_null_frame(priv->ieee80211, false); - } - } else { - priv->link_detect.IdleCount = 0; - } - priv->link_detect.LastNumTxUnicast = priv->NumTxUnicast; - priv->link_detect.LastNumRxUnicast = priv->ieee80211->NumRxUnicast; - } -} - -void rtl8180_watch_dog(struct net_device *dev) -{ - struct r8180_priv *priv = ieee80211_priv(dev); - bool bEnterPS = false; - bool bBusyTraffic = false; - u32 TotalRxNum = 0; - u16 SlotIndex = 0; - u16 i = 0; - if (priv->ieee80211->actscanning == false) { - if ((priv->ieee80211->iw_mode != IW_MODE_ADHOC) && - (priv->ieee80211->state == IEEE80211_NOLINK) && - (priv->ieee80211->beinretry == false) && - (priv->eRFPowerState == eRfOn)) - IPSEnter(dev); - } - /* YJ,add,080828,for link state check */ - if ((priv->ieee80211->state == IEEE80211_LINKED) && (priv->ieee80211->iw_mode == IW_MODE_INFRA)) { - SlotIndex = (priv->link_detect.SlotIndex++) % priv->link_detect.SlotNum; - priv->link_detect.RxFrameNum[SlotIndex] = priv->ieee80211->NumRxDataInPeriod + priv->ieee80211->NumRxBcnInPeriod; - for (i = 0; i < priv->link_detect.SlotNum; i++) - TotalRxNum += priv->link_detect.RxFrameNum[i]; - - if (TotalRxNum == 0) { - priv->ieee80211->state = IEEE80211_ASSOCIATING; - queue_work(priv->ieee80211->wq, &priv->ieee80211->associate_procedure_wq); - } - } - - /* YJ,add,080828,for KeepAlive */ - MgntLinkKeepAlive(priv); - - /* YJ,add,080828,for LPS */ - LeisurePSLeave(priv); - - if (priv->ieee80211->state == IEEE80211_LINKED) { - priv->link_detect.NumRxOkInPeriod = priv->ieee80211->NumRxDataInPeriod; - if (priv->link_detect.NumRxOkInPeriod > 666 || - priv->link_detect.NumTxOkInPeriod > 666) { - bBusyTraffic = true; - } - if (((priv->link_detect.NumRxOkInPeriod + priv->link_detect.NumTxOkInPeriod) > 8) - || (priv->link_detect.NumRxOkInPeriod > 2)) { - bEnterPS = false; - } else - bEnterPS = true; - - if (bEnterPS) - LeisurePSEnter(priv); - else - LeisurePSLeave(priv); - } else - LeisurePSLeave(priv); - priv->link_detect.bBusyTraffic = bBusyTraffic; - priv->link_detect.NumRxOkInPeriod = 0; - priv->link_detect.NumTxOkInPeriod = 0; - priv->ieee80211->NumRxDataInPeriod = 0; - priv->ieee80211->NumRxBcnInPeriod = 0; -} - -static int _rtl8180_up(struct net_device *dev) -{ - struct r8180_priv *priv = ieee80211_priv(dev); - - priv->up = 1; - - DMESG("Bringing up iface"); - rtl8185b_adapter_start(dev); - rtl8185b_rx_enable(dev); - rtl8185b_tx_enable(dev); - if (priv->bInactivePs) { - if (priv->ieee80211->iw_mode == IW_MODE_ADHOC) - IPSLeave(dev); - } - timer_rate_adaptive((unsigned long)dev); - watch_dog_adaptive((unsigned long)dev); - if (priv->bSwAntennaDiverity) - SwAntennaDiversityTimerCallback(dev); - ieee80211_softmac_start_protocol(priv->ieee80211); - return 0; -} - -static int rtl8180_open(struct net_device *dev) -{ - struct r8180_priv *priv = ieee80211_priv(dev); - int ret; - - down(&priv->wx_sem); - ret = rtl8180_up(dev); - up(&priv->wx_sem); - return ret; -} - -int rtl8180_up(struct net_device *dev) -{ - struct r8180_priv *priv = ieee80211_priv(dev); - - if (priv->up == 1) - return -1; - - return _rtl8180_up(dev); -} - -static int rtl8180_close(struct net_device *dev) -{ - struct r8180_priv *priv = ieee80211_priv(dev); - int ret; - - down(&priv->wx_sem); - ret = rtl8180_down(dev); - up(&priv->wx_sem); - - return ret; -} - -int rtl8180_down(struct net_device *dev) -{ - struct r8180_priv *priv = ieee80211_priv(dev); - - if (priv->up == 0) - return -1; - - priv->up = 0; - - ieee80211_softmac_stop_protocol(priv->ieee80211); - /* FIXME */ - if (!netif_queue_stopped(dev)) - netif_stop_queue(dev); - rtl8180_rtx_disable(dev); - rtl8180_irq_disable(dev); - del_timer_sync(&priv->watch_dog_timer); - del_timer_sync(&priv->rateadapter_timer); - cancel_delayed_work(&priv->ieee80211->rate_adapter_wq); - cancel_delayed_work(&priv->ieee80211->hw_wakeup_wq); - cancel_delayed_work(&priv->ieee80211->hw_sleep_wq); - cancel_delayed_work(&priv->ieee80211->hw_dig_wq); - cancel_delayed_work(&priv->ieee80211->tx_pw_wq); - del_timer_sync(&priv->SwAntennaDiversityTimer); - SetZebraRFPowerState8185(dev, eRfOff); - memset(&(priv->ieee80211->current_network), 0, sizeof(struct ieee80211_network)); - priv->ieee80211->state = IEEE80211_NOLINK; - return 0; -} - -void rtl8180_restart_wq(struct work_struct *work) -{ - struct r8180_priv *priv = container_of(work, struct r8180_priv, reset_wq); - struct net_device *dev = priv->dev; - - down(&priv->wx_sem); - - rtl8180_commit(dev); - - up(&priv->wx_sem); -} - -static void rtl8180_restart(struct net_device *dev) -{ - struct r8180_priv *priv = ieee80211_priv(dev); - - schedule_work(&priv->reset_wq); -} - -void rtl8180_commit(struct net_device *dev) -{ - struct r8180_priv *priv = ieee80211_priv(dev); - - if (priv->up == 0) - return; - - del_timer_sync(&priv->watch_dog_timer); - del_timer_sync(&priv->rateadapter_timer); - cancel_delayed_work(&priv->ieee80211->rate_adapter_wq); - cancel_delayed_work(&priv->ieee80211->hw_wakeup_wq); - cancel_delayed_work(&priv->ieee80211->hw_sleep_wq); - cancel_delayed_work(&priv->ieee80211->hw_dig_wq); - cancel_delayed_work(&priv->ieee80211->tx_pw_wq); - del_timer_sync(&priv->SwAntennaDiversityTimer); - ieee80211_softmac_stop_protocol(priv->ieee80211); - rtl8180_irq_disable(dev); - rtl8180_rtx_disable(dev); - _rtl8180_up(dev); -} - -static void r8180_set_multicast(struct net_device *dev) -{ - struct r8180_priv *priv = ieee80211_priv(dev); - short promisc; - - promisc = (dev->flags & IFF_PROMISC) ? 1 : 0; - - if (promisc != priv->promisc) - rtl8180_restart(dev); - - priv->promisc = promisc; -} - -static int r8180_set_mac_adr(struct net_device *dev, void *mac) -{ - struct r8180_priv *priv = ieee80211_priv(dev); - struct sockaddr *addr = mac; - - down(&priv->wx_sem); - - memcpy(dev->dev_addr, addr->sa_data, ETH_ALEN); - - if (priv->ieee80211->iw_mode == IW_MODE_MASTER) - memcpy(priv->ieee80211->current_network.bssid, dev->dev_addr, ETH_ALEN); - - if (priv->up) { - rtl8180_down(dev); - rtl8180_up(dev); - } - - up(&priv->wx_sem); - - return 0; -} - -/* based on ipw2200 driver */ -static int rtl8180_ioctl(struct net_device *dev, struct ifreq *rq, int cmd) -{ - struct r8180_priv *priv = (struct r8180_priv *)ieee80211_priv(dev); - struct iwreq *wrq = (struct iwreq *) rq; - int ret = -1; - - switch (cmd) { - case RTL_IOCTL_WPA_SUPPLICANT: - ret = ieee80211_wpa_supplicant_ioctl(priv->ieee80211, &wrq->u.data); - return ret; - default: - return -EOPNOTSUPP; - } - - return -EOPNOTSUPP; -} - -static const struct net_device_ops rtl8180_netdev_ops = { - .ndo_open = rtl8180_open, - .ndo_stop = rtl8180_close, - .ndo_get_stats = rtl8180_stats, - .ndo_tx_timeout = rtl8180_restart, - .ndo_do_ioctl = rtl8180_ioctl, - .ndo_set_rx_mode = r8180_set_multicast, - .ndo_set_mac_address = r8180_set_mac_adr, - .ndo_validate_addr = eth_validate_addr, - .ndo_change_mtu = eth_change_mtu, - .ndo_start_xmit = ieee80211_rtl_xmit, -}; - -static int rtl8180_pci_probe(struct pci_dev *pdev, - const struct pci_device_id *id) -{ - unsigned long ioaddr = 0; - struct net_device *dev = NULL; - struct r8180_priv *priv = NULL; - u8 unit = 0; - int ret = -ENODEV; - - unsigned long pmem_start, pmem_len, pmem_flags; - - DMESG("Configuring chip resources"); - - if (pci_enable_device(pdev)) { - DMESG("Failed to enable PCI device"); - return -EIO; - } - - pci_set_master(pdev); - pci_set_dma_mask(pdev, 0xffffff00ULL); - pci_set_consistent_dma_mask(pdev, 0xffffff00ULL); - dev = alloc_ieee80211(sizeof(struct r8180_priv)); - if (!dev) { - ret = -ENOMEM; - goto fail_free; - } - priv = ieee80211_priv(dev); - priv->ieee80211 = netdev_priv(dev); - - pci_set_drvdata(pdev, dev); - SET_NETDEV_DEV(dev, &pdev->dev); - - priv = ieee80211_priv(dev); - priv->pdev = pdev; - - pmem_start = pci_resource_start(pdev, 1); - pmem_len = pci_resource_len(pdev, 1); - pmem_flags = pci_resource_flags(pdev, 1); - - if (!(pmem_flags & IORESOURCE_MEM)) { - DMESG("region #1 not a MMIO resource, aborting"); - goto fail; - } - - if (!request_mem_region(pmem_start, pmem_len, RTL8180_MODULE_NAME)) { - DMESG("request_mem_region failed!"); - goto fail; - } - - ioaddr = (unsigned long)ioremap_nocache(pmem_start, pmem_len); - if (ioaddr == (unsigned long)NULL) { - DMESG("ioremap failed!"); - goto fail1; - } - - dev->mem_start = ioaddr; /* shared mem start */ - dev->mem_end = ioaddr + pci_resource_len(pdev, 0); /* shared mem end */ - - pci_read_config_byte(pdev, 0x05, &unit); - pci_write_config_byte(pdev, 0x05, unit & (~0x04)); - - dev->irq = pdev->irq; - priv->irq = 0; - - dev->netdev_ops = &rtl8180_netdev_ops; - dev->wireless_handlers = &r8180_wx_handlers_def; - - dev->type = ARPHRD_ETHER; - dev->watchdog_timeo = HZ*3; - - if (dev_alloc_name(dev, ifname) < 0) { - DMESG("Oops: devname already taken! Trying wlan%%d...\n"); - strcpy(ifname, "wlan%d"); - dev_alloc_name(dev, ifname); - } - - if (rtl8180_init(dev) != 0) { - DMESG("Initialization failed"); - goto fail1; - } - - netif_carrier_off(dev); - - if (register_netdev(dev)) - goto fail1; - - rtl8180_proc_init_one(dev); - - DMESG("Driver probe completed\n"); - return 0; -fail1: - if (dev->mem_start != (unsigned long)NULL) { - iounmap((void __iomem *)dev->mem_start); - release_mem_region(pci_resource_start(pdev, 1), - pci_resource_len(pdev, 1)); - } -fail: - if (dev) { - if (priv->irq) { - free_irq(dev->irq, dev); - dev->irq = 0; - } - free_ieee80211(dev); - } - -fail_free: - pci_disable_device(pdev); - - DMESG("wlan driver load failed\n"); - return ret; -} - -static void rtl8180_pci_remove(struct pci_dev *pdev) -{ - struct r8180_priv *priv; - struct net_device *dev = pci_get_drvdata(pdev); - - if (dev) { - unregister_netdev(dev); - - priv = ieee80211_priv(dev); - - rtl8180_proc_remove_one(dev); - rtl8180_down(dev); - priv->rf_close(dev); - rtl8180_reset(dev); - mdelay(10); - - if (priv->irq) { - DMESG("Freeing irq %d", dev->irq); - free_irq(dev->irq, dev); - priv->irq = 0; - } - - free_rx_desc_ring(dev); - free_tx_desc_rings(dev); - - if (dev->mem_start != (unsigned long)NULL) { - iounmap((void __iomem *)dev->mem_start); - release_mem_region(pci_resource_start(pdev, 1), - pci_resource_len(pdev, 1)); - } - - free_ieee80211(dev); - } - pci_disable_device(pdev); - - DMESG("wlan driver removed\n"); -} - -static int __init rtl8180_pci_module_init(void) -{ - int ret; - - ret = ieee80211_crypto_init(); - if (ret) { - pr_err("ieee80211_crypto_init() failed %d\n", ret); - return ret; - } - ret = ieee80211_crypto_tkip_init(); - if (ret) { - pr_err("ieee80211_crypto_tkip_init() failed %d\n", ret); - return ret; - } - ret = ieee80211_crypto_ccmp_init(); - if (ret) { - pr_err("ieee80211_crypto_ccmp_init() failed %d\n", ret); - return ret; - } - ret = ieee80211_crypto_wep_init(); - if (ret) { - pr_err("ieee80211_crypto_wep_init() failed %d\n", ret); - return ret; - } - - pr_info("\nLinux kernel driver for RTL8180 / RTL8185 based WLAN cards\n"); - pr_info("Copyright (c) 2004-2005, Andrea Merello\n"); - DMESG("Initializing module"); - DMESG("Wireless extensions version %d", WIRELESS_EXT); - rtl8180_proc_module_init(); - - if (pci_register_driver(&rtl8180_pci_driver)) { - DMESG("No device found"); - return -ENODEV; - } - return 0; -} - -static void __exit rtl8180_pci_module_exit(void) -{ - pci_unregister_driver(&rtl8180_pci_driver); - rtl8180_proc_module_remove(); - ieee80211_crypto_tkip_exit(); - ieee80211_crypto_ccmp_exit(); - ieee80211_crypto_wep_exit(); - ieee80211_crypto_deinit(); - DMESG("Exiting"); -} - -static void rtl8180_try_wake_queue(struct net_device *dev, int pri) -{ - unsigned long flags; - short enough_desc; - struct r8180_priv *priv = (struct r8180_priv *)ieee80211_priv(dev); - - spin_lock_irqsave(&priv->tx_lock, flags); - enough_desc = check_nic_enought_desc(dev, pri); - spin_unlock_irqrestore(&priv->tx_lock, flags); - - if (enough_desc) - ieee80211_rtl_wake_queue(priv->ieee80211); -} - -static void rtl8180_tx_isr(struct net_device *dev, int pri, short error) -{ - struct r8180_priv *priv = (struct r8180_priv *)ieee80211_priv(dev); - u32 *tail; /* tail virtual addr */ - u32 *head; /* head virtual addr */ - u32 *begin; /* start of ring virtual addr */ - u32 *nicv; /* nic pointer virtual addr */ - u32 nic; /* nic pointer physical addr */ - u32 nicbegin; /* start of ring physical addr */ - unsigned long flag; - /* physical addr are ok on 32 bits since we set DMA mask */ - int offs; - int j, i; - int hd; - if (error) - priv->stats.txretry++; /* tony 20060601 */ - spin_lock_irqsave(&priv->tx_lock, flag); - switch (pri) { - case MANAGE_PRIORITY: - tail = priv->txmapringtail; - begin = priv->txmapring; - head = priv->txmapringhead; - nic = read_nic_dword(dev, TX_MANAGEPRIORITY_RING_ADDR); - nicbegin = priv->txmapringdma; - break; - case BK_PRIORITY: - tail = priv->txbkpringtail; - begin = priv->txbkpring; - head = priv->txbkpringhead; - nic = read_nic_dword(dev, TX_BKPRIORITY_RING_ADDR); - nicbegin = priv->txbkpringdma; - break; - case BE_PRIORITY: - tail = priv->txbepringtail; - begin = priv->txbepring; - head = priv->txbepringhead; - nic = read_nic_dword(dev, TX_BEPRIORITY_RING_ADDR); - nicbegin = priv->txbepringdma; - break; - case VI_PRIORITY: - tail = priv->txvipringtail; - begin = priv->txvipring; - head = priv->txvipringhead; - nic = read_nic_dword(dev, TX_VIPRIORITY_RING_ADDR); - nicbegin = priv->txvipringdma; - break; - case VO_PRIORITY: - tail = priv->txvopringtail; - begin = priv->txvopring; - head = priv->txvopringhead; - nic = read_nic_dword(dev, TX_VOPRIORITY_RING_ADDR); - nicbegin = priv->txvopringdma; - break; - case HI_PRIORITY: - tail = priv->txhpringtail; - begin = priv->txhpring; - head = priv->txhpringhead; - nic = read_nic_dword(dev, TX_HIGHPRIORITY_RING_ADDR); - nicbegin = priv->txhpringdma; - break; - - default: - spin_unlock_irqrestore(&priv->tx_lock, flag); - return; - } - - nicv = (u32 *)((nic - nicbegin) + (u8 *)begin); - if ((head <= tail && (nicv > tail || nicv < head)) || - (head > tail && (nicv > tail && nicv < head))) { - DMESGW("nic has lost pointer"); - spin_unlock_irqrestore(&priv->tx_lock, flag); - rtl8180_restart(dev); - return; - } - - /* - * We check all the descriptors between the head and the nic, - * but not the currently pointed by the nic (the next to be txed) - * and the previous of the pointed (might be in process ??) - */ - offs = (nic - nicbegin); - offs = offs / 8 / 4; - hd = (head - begin) / 8; - - if (offs >= hd) - j = offs - hd; - else - j = offs + (priv->txringcount-1-hd); - - j -= 2; - if (j < 0) - j = 0; - - for (i = 0; i < j; i++) { - if ((*head) & (1<<31)) - break; - if (((*head)&(0x10000000)) != 0) { - priv->CurrRetryCnt += (u16)((*head) & (0x000000ff)); - if (!error) - priv->NumTxOkTotal++; - } - - if (!error) - priv->NumTxOkBytesTotal += (*(head+3)) & (0x00000fff); - - *head = *head & ~(1<<31); - - if ((head - begin)/8 == priv->txringcount-1) - head = begin; - else - head += 8; - } - - /* - * The head has been moved to the last certainly TXed - * (or at least processed by the nic) packet. - * The driver take forcefully owning of all these packets - * If the packet previous of the nic pointer has been - * processed this doesn't matter: it will be checked - * here at the next round. Anyway if no more packet are - * TXed no memory leak occur at all. - */ - - switch (pri) { - case MANAGE_PRIORITY: - priv->txmapringhead = head; - - if (priv->ack_tx_to_ieee) { - if (rtl8180_is_tx_queue_empty(dev)) { - priv->ack_tx_to_ieee = 0; - ieee80211_ps_tx_ack(priv->ieee80211, !error); - } - } - break; - case BK_PRIORITY: - priv->txbkpringhead = head; - break; - case BE_PRIORITY: - priv->txbepringhead = head; - break; - case VI_PRIORITY: - priv->txvipringhead = head; - break; - case VO_PRIORITY: - priv->txvopringhead = head; - break; - case HI_PRIORITY: - priv->txhpringhead = head; - break; - } - - spin_unlock_irqrestore(&priv->tx_lock, flag); -} - -static irqreturn_t rtl8180_interrupt(int irq, void *netdev) -{ - struct net_device *dev = (struct net_device *) netdev; - struct r8180_priv *priv = (struct r8180_priv *)ieee80211_priv(dev); - unsigned long flags; - u32 inta; - - /* We should return IRQ_NONE, but for now let me keep this */ - if (priv->irq_enabled == 0) - return IRQ_HANDLED; - - spin_lock_irqsave(&priv->irq_th_lock, flags); - - /* ISR: 4bytes */ - inta = read_nic_dword(dev, ISR); /* & priv->IntrMask; */ - write_nic_dword(dev, ISR, inta); /* reset int situation */ - - priv->stats.shints++; - - if (!inta) { - spin_unlock_irqrestore(&priv->irq_th_lock, flags); - return IRQ_HANDLED; - /* - * most probably we can safely return IRQ_NONE, - * but for now is better to avoid problems - */ - } - - if (inta == 0xffff) { - /* HW disappeared */ - spin_unlock_irqrestore(&priv->irq_th_lock, flags); - return IRQ_HANDLED; - } - - priv->stats.ints++; - - if (!netif_running(dev)) { - spin_unlock_irqrestore(&priv->irq_th_lock, flags); - return IRQ_HANDLED; - } - - if (inta & ISR_TimeOut) - write_nic_dword(dev, TimerInt, 0); - - if (inta & ISR_TBDOK) - priv->stats.txbeacon++; - - if (inta & ISR_TBDER) - priv->stats.txbeaconerr++; - - if (inta & IMR_TMGDOK) - rtl8180_tx_isr(dev, MANAGE_PRIORITY, 0); - - if (inta & ISR_THPDER) { - priv->stats.txhperr++; - rtl8180_tx_isr(dev, HI_PRIORITY, 1); - priv->ieee80211->stats.tx_errors++; - } - - if (inta & ISR_THPDOK) { /* High priority tx ok */ - priv->link_detect.NumTxOkInPeriod++; /* YJ,add,080828 */ - priv->stats.txhpokint++; - rtl8180_tx_isr(dev, HI_PRIORITY, 0); - } - - if (inta & ISR_RER) - priv->stats.rxerr++; - - if (inta & ISR_TBKDER) { /* corresponding to BK_PRIORITY */ - priv->stats.txbkperr++; - priv->ieee80211->stats.tx_errors++; - rtl8180_tx_isr(dev, BK_PRIORITY, 1); - rtl8180_try_wake_queue(dev, BK_PRIORITY); - } - - if (inta & ISR_TBEDER) { /* corresponding to BE_PRIORITY */ - priv->stats.txbeperr++; - priv->ieee80211->stats.tx_errors++; - rtl8180_tx_isr(dev, BE_PRIORITY, 1); - rtl8180_try_wake_queue(dev, BE_PRIORITY); - } - if (inta & ISR_TNPDER) { /* corresponding to VO_PRIORITY */ - priv->stats.txnperr++; - priv->ieee80211->stats.tx_errors++; - rtl8180_tx_isr(dev, NORM_PRIORITY, 1); - rtl8180_try_wake_queue(dev, NORM_PRIORITY); - } - - if (inta & ISR_TLPDER) { /* corresponding to VI_PRIORITY */ - priv->stats.txlperr++; - priv->ieee80211->stats.tx_errors++; - rtl8180_tx_isr(dev, LOW_PRIORITY, 1); - rtl8180_try_wake_queue(dev, LOW_PRIORITY); - } - - if (inta & ISR_ROK) { - priv->stats.rxint++; - tasklet_schedule(&priv->irq_rx_tasklet); - } - - if (inta & ISR_RQoSOK) { - priv->stats.rxint++; - tasklet_schedule(&priv->irq_rx_tasklet); - } - - if (inta & ISR_BcnInt) - rtl8180_prepare_beacon(dev); - - if (inta & ISR_RDU) { - DMESGW("No RX descriptor available"); - priv->stats.rxrdu++; - tasklet_schedule(&priv->irq_rx_tasklet); - } - - if (inta & ISR_RXFOVW) { - priv->stats.rxoverflow++; - tasklet_schedule(&priv->irq_rx_tasklet); - } - - if (inta & ISR_TXFOVW) - priv->stats.txoverflow++; - - if (inta & ISR_TNPDOK) { /* Normal priority tx ok */ - priv->link_detect.NumTxOkInPeriod++; /* YJ,add,080828 */ - priv->stats.txnpokint++; - rtl8180_tx_isr(dev, NORM_PRIORITY, 0); - rtl8180_try_wake_queue(dev, NORM_PRIORITY); - } - - if (inta & ISR_TLPDOK) { /* Low priority tx ok */ - priv->link_detect.NumTxOkInPeriod++; /* YJ,add,080828 */ - priv->stats.txlpokint++; - rtl8180_tx_isr(dev, LOW_PRIORITY, 0); - rtl8180_try_wake_queue(dev, LOW_PRIORITY); - } - - if (inta & ISR_TBKDOK) { /* corresponding to BK_PRIORITY */ - priv->stats.txbkpokint++; - priv->link_detect.NumTxOkInPeriod++; /* YJ,add,080828 */ - rtl8180_tx_isr(dev, BK_PRIORITY, 0); - rtl8180_try_wake_queue(dev, BE_PRIORITY); - } - - if (inta & ISR_TBEDOK) { /* corresponding to BE_PRIORITY */ - priv->stats.txbeperr++; - priv->link_detect.NumTxOkInPeriod++; /* YJ,add,080828 */ - rtl8180_tx_isr(dev, BE_PRIORITY, 0); - rtl8180_try_wake_queue(dev, BE_PRIORITY); - } - force_pci_posting(dev); - spin_unlock_irqrestore(&priv->irq_th_lock, flags); - - return IRQ_HANDLED; -} - -void rtl8180_irq_rx_tasklet(struct r8180_priv *priv) -{ - rtl8180_rx(priv->dev); -} - -void GPIOChangeRFWorkItemCallBack(struct work_struct *work) -{ - struct ieee80211_device *ieee = container_of(work, struct ieee80211_device, GPIOChangeRFWorkItem.work); - struct net_device *dev = ieee->dev; - struct r8180_priv *priv = ieee80211_priv(dev); - u8 btPSR; - u8 btConfig0; - RT_RF_POWER_STATE eRfPowerStateToSet; - bool bActuallySet = false; - - char *argv[3]; - static char *RadioPowerPath = "/etc/acpi/events/RadioPower.sh"; - static char *envp[] = {"HOME=/", "TERM=linux", "PATH=/usr/bin:/bin", NULL}; - static int readf_count; - - readf_count = (readf_count+1)%0xffff; - /* We should turn off LED before polling FF51[4]. */ - - /* Turn off LED. */ - btPSR = read_nic_byte(dev, PSR); - write_nic_byte(dev, PSR, (btPSR & ~BIT3)); - - /* It need to delay 4us suggested by Jong, 2008-01-16 */ - udelay(4); - - /* HW radio On/Off according to the value of FF51[4](config0) */ - btConfig0 = btPSR = read_nic_byte(dev, CONFIG0); - - eRfPowerStateToSet = (btConfig0 & BIT4) ? eRfOn : eRfOff; - - /* Turn LED back on when radio enabled */ - if (eRfPowerStateToSet == eRfOn) - write_nic_byte(dev, PSR, btPSR | BIT3); - - if ((priv->ieee80211->bHwRadioOff == true) && - (eRfPowerStateToSet == eRfOn)) { - priv->ieee80211->bHwRadioOff = false; - bActuallySet = true; - } else if ((priv->ieee80211->bHwRadioOff == false) && - (eRfPowerStateToSet == eRfOff)) { - priv->ieee80211->bHwRadioOff = true; - bActuallySet = true; - } - - if (bActuallySet) { - MgntActSet_RF_State(dev, eRfPowerStateToSet, RF_CHANGE_BY_HW); - - /* To update the UI status for Power status changed */ - if (priv->ieee80211->bHwRadioOff == true) - argv[1] = "RFOFF"; - else - argv[1] = "RFON"; - argv[0] = RadioPowerPath; - argv[2] = NULL; - - call_usermodehelper(RadioPowerPath, argv, envp, UMH_WAIT_PROC); - } -} - -module_init(rtl8180_pci_module_init); -module_exit(rtl8180_pci_module_exit); |