diff options
Diffstat (limited to 'drivers/net/wireless/rtlwifi/pci.c')
| -rw-r--r-- | drivers/net/wireless/rtlwifi/pci.c | 1945 |
1 files changed, 1945 insertions, 0 deletions
diff --git a/drivers/net/wireless/rtlwifi/pci.c b/drivers/net/wireless/rtlwifi/pci.c new file mode 100644 index 00000000000..0fa36aa6701 --- /dev/null +++ b/drivers/net/wireless/rtlwifi/pci.c @@ -0,0 +1,1945 @@ +/****************************************************************************** + * + * Copyright(c) 2009-2010 Realtek Corporation. + * + * This program is free software; you can redistribute it and/or modify it + * under the terms of version 2 of the GNU General Public License as + * published by the Free Software Foundation. + * + * This program is distributed in the hope that it will be useful, but WITHOUT + * ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or + * FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License for + * more details. + * + * You should have received a copy of the GNU General Public License along with + * this program; if not, write to the Free Software Foundation, Inc., + * 51 Franklin Street, Fifth Floor, Boston, MA 02110, USA + * + * The full GNU General Public License is included in this distribution in the + * file called LICENSE. + * + * Contact Information: + * wlanfae <wlanfae@realtek.com> + * Realtek Corporation, No. 2, Innovation Road II, Hsinchu Science Park, + * Hsinchu 300, Taiwan. + * + * Larry Finger <Larry.Finger@lwfinger.net> + * + *****************************************************************************/ + +#include "core.h" +#include "wifi.h" +#include "pci.h" +#include "base.h" +#include "ps.h" + +static const u16 pcibridge_vendors[PCI_BRIDGE_VENDOR_MAX] = { + INTEL_VENDOR_ID, + ATI_VENDOR_ID, + AMD_VENDOR_ID, + SIS_VENDOR_ID +}; + +/* Update PCI dependent default settings*/ +static void _rtl_pci_update_default_setting(struct ieee80211_hw *hw) +{ + struct rtl_priv *rtlpriv = rtl_priv(hw); + struct rtl_pci_priv *pcipriv = rtl_pcipriv(hw); + struct rtl_ps_ctl *ppsc = rtl_psc(rtl_priv(hw)); + struct rtl_pci *rtlpci = rtl_pcidev(rtl_pcipriv(hw)); + u8 pcibridge_vendor = pcipriv->ndis_adapter.pcibridge_vendor; + + ppsc->reg_rfps_level = 0; + ppsc->b_support_aspm = 0; + + /*Update PCI ASPM setting */ + ppsc->const_amdpci_aspm = rtlpci->const_amdpci_aspm; + switch (rtlpci->const_pci_aspm) { + case 0: + /*No ASPM */ + break; + + case 1: + /*ASPM dynamically enabled/disable. */ + ppsc->reg_rfps_level |= RT_RF_LPS_LEVEL_ASPM; + break; + + case 2: + /*ASPM with Clock Req dynamically enabled/disable. */ + ppsc->reg_rfps_level |= (RT_RF_LPS_LEVEL_ASPM | + RT_RF_OFF_LEVL_CLK_REQ); + break; + + case 3: + /* + * Always enable ASPM and Clock Req + * from initialization to halt. + * */ + ppsc->reg_rfps_level &= ~(RT_RF_LPS_LEVEL_ASPM); + ppsc->reg_rfps_level |= (RT_RF_PS_LEVEL_ALWAYS_ASPM | + RT_RF_OFF_LEVL_CLK_REQ); + break; + + case 4: + /* + * Always enable ASPM without Clock Req + * from initialization to halt. + * */ + ppsc->reg_rfps_level &= ~(RT_RF_LPS_LEVEL_ASPM | + RT_RF_OFF_LEVL_CLK_REQ); + ppsc->reg_rfps_level |= RT_RF_PS_LEVEL_ALWAYS_ASPM; + break; + } + + ppsc->reg_rfps_level |= RT_RF_OFF_LEVL_HALT_NIC; + + /*Update Radio OFF setting */ + switch (rtlpci->const_hwsw_rfoff_d3) { + case 1: + if (ppsc->reg_rfps_level & RT_RF_LPS_LEVEL_ASPM) + ppsc->reg_rfps_level |= RT_RF_OFF_LEVL_ASPM; + break; + + case 2: + if (ppsc->reg_rfps_level & RT_RF_LPS_LEVEL_ASPM) + ppsc->reg_rfps_level |= RT_RF_OFF_LEVL_ASPM; + ppsc->reg_rfps_level |= RT_RF_OFF_LEVL_HALT_NIC; + break; + + case 3: + ppsc->reg_rfps_level |= RT_RF_OFF_LEVL_PCI_D3; + break; + } + + /*Set HW definition to determine if it supports ASPM. */ + switch (rtlpci->const_support_pciaspm) { + case 0:{ + /*Not support ASPM. */ + bool b_support_aspm = false; + ppsc->b_support_aspm = b_support_aspm; + break; + } + case 1:{ + /*Support ASPM. */ + bool b_support_aspm = true; + bool b_support_backdoor = true; + ppsc->b_support_aspm = b_support_aspm; + + /*if(priv->oem_id == RT_CID_TOSHIBA && + !priv->ndis_adapter.amd_l1_patch) + b_support_backdoor = false; */ + + ppsc->b_support_backdoor = b_support_backdoor; + + break; + } + case 2: + /*ASPM value set by chipset. */ + if (pcibridge_vendor == PCI_BRIDGE_VENDOR_INTEL) { + bool b_support_aspm = true; + ppsc->b_support_aspm = b_support_aspm; + } + break; + default: + RT_TRACE(rtlpriv, COMP_ERR, DBG_EMERG, + ("switch case not process\n")); + break; + } +} + +static bool _rtl_pci_platform_switch_device_pci_aspm( + struct ieee80211_hw *hw, + u8 value) +{ + struct rtl_pci *rtlpci = rtl_pcidev(rtl_pcipriv(hw)); + bool bresult = false; + + value |= 0x40; + + pci_write_config_byte(rtlpci->pdev, 0x80, value); + + return bresult; +} + +/*When we set 0x01 to enable clk request. Set 0x0 to disable clk req.*/ +static bool _rtl_pci_switch_clk_req(struct ieee80211_hw *hw, u8 value) +{ + struct rtl_pci *rtlpci = rtl_pcidev(rtl_pcipriv(hw)); + u8 buffer; + bool bresult = false; + + buffer = value; + + pci_write_config_byte(rtlpci->pdev, 0x81, value); + bresult = true; + + return bresult; +} + +/*Disable RTL8192SE ASPM & Disable Pci Bridge ASPM*/ +static void rtl_pci_disable_aspm(struct ieee80211_hw *hw) +{ + struct rtl_priv *rtlpriv = rtl_priv(hw); + struct rtl_pci_priv *pcipriv = rtl_pcipriv(hw); + struct rtl_ps_ctl *ppsc = rtl_psc(rtl_priv(hw)); + struct rtl_pci *rtlpci = rtl_pcidev(rtl_pcipriv(hw)); + u8 pcibridge_vendor = pcipriv->ndis_adapter.pcibridge_vendor; + u32 pcicfg_addrport = pcipriv->ndis_adapter.pcicfg_addrport; + u8 num4bytes = pcipriv->ndis_adapter.num4bytes; + /*Retrieve original configuration settings. */ + u8 linkctrl_reg = pcipriv->ndis_adapter.linkctrl_reg; + u16 pcibridge_linkctrlreg = pcipriv->ndis_adapter. + pcibridge_linkctrlreg; + u16 aspmlevel = 0; + + if (pcibridge_vendor == PCI_BRIDGE_VENDOR_UNKNOWN) { + RT_TRACE(rtlpriv, COMP_POWER, DBG_TRACE, + ("PCI(Bridge) UNKNOWN.\n")); + + return; + } + + if (ppsc->reg_rfps_level & RT_RF_OFF_LEVL_CLK_REQ) { + RT_CLEAR_PS_LEVEL(ppsc, RT_RF_OFF_LEVL_CLK_REQ); + _rtl_pci_switch_clk_req(hw, 0x0); + } + + if (1) { + /*for promising device will in L0 state after an I/O. */ + u8 tmp_u1b; + pci_read_config_byte(rtlpci->pdev, 0x80, &tmp_u1b); + } + + /*Set corresponding value. */ + aspmlevel |= BIT(0) | BIT(1); + linkctrl_reg &= ~aspmlevel; + pcibridge_linkctrlreg &= ~(BIT(0) | BIT(1)); + + _rtl_pci_platform_switch_device_pci_aspm(hw, linkctrl_reg); + udelay(50); + + /*4 Disable Pci Bridge ASPM */ + rtl_pci_raw_write_port_ulong(PCI_CONF_ADDRESS, + pcicfg_addrport + (num4bytes << 2)); + rtl_pci_raw_write_port_uchar(PCI_CONF_DATA, pcibridge_linkctrlreg); + + udelay(50); + +} + +/* + *Enable RTL8192SE ASPM & Enable Pci Bridge ASPM for + *power saving We should follow the sequence to enable + *RTL8192SE first then enable Pci Bridge ASPM + *or the system will show bluescreen. + */ +static void rtl_pci_enable_aspm(struct ieee80211_hw *hw) +{ + struct rtl_priv *rtlpriv = rtl_priv(hw); + struct rtl_pci_priv *pcipriv = rtl_pcipriv(hw); + struct rtl_ps_ctl *ppsc = rtl_psc(rtl_priv(hw)); + struct rtl_pci *rtlpci = rtl_pcidev(rtl_pcipriv(hw)); + u8 pcibridge_busnum = pcipriv->ndis_adapter.pcibridge_busnum; + u8 pcibridge_devnum = pcipriv->ndis_adapter.pcibridge_devnum; + u8 pcibridge_funcnum = pcipriv->ndis_adapter.pcibridge_funcnum; + u8 pcibridge_vendor = pcipriv->ndis_adapter.pcibridge_vendor; + u32 pcicfg_addrport = pcipriv->ndis_adapter.pcicfg_addrport; + u8 num4bytes = pcipriv->ndis_adapter.num4bytes; + u16 aspmlevel; + u8 u_pcibridge_aspmsetting; + u8 u_device_aspmsetting; + + if (pcibridge_vendor == PCI_BRIDGE_VENDOR_UNKNOWN) { + RT_TRACE(rtlpriv, COMP_POWER, DBG_TRACE, + ("PCI(Bridge) UNKNOWN.\n")); + return; + } + + /*4 Enable Pci Bridge ASPM */ + rtl_pci_raw_write_port_ulong(PCI_CONF_ADDRESS, + pcicfg_addrport + (num4bytes << 2)); + + u_pcibridge_aspmsetting = + pcipriv->ndis_adapter.pcibridge_linkctrlreg | + rtlpci->const_hostpci_aspm_setting; + + if (pcibridge_vendor == PCI_BRIDGE_VENDOR_INTEL) + u_pcibridge_aspmsetting &= ~BIT(0); + + rtl_pci_raw_write_port_uchar(PCI_CONF_DATA, u_pcibridge_aspmsetting); + + RT_TRACE(rtlpriv, COMP_INIT, DBG_LOUD, + ("PlatformEnableASPM():PciBridge busnumber[%x], " + "DevNumbe[%x], funcnumber[%x], Write reg[%x] = %x\n", + pcibridge_busnum, pcibridge_devnum, pcibridge_funcnum, + (pcipriv->ndis_adapter.pcibridge_pciehdr_offset + 0x10), + u_pcibridge_aspmsetting)); + + udelay(50); + + /*Get ASPM level (with/without Clock Req) */ + aspmlevel = rtlpci->const_devicepci_aspm_setting; + u_device_aspmsetting = pcipriv->ndis_adapter.linkctrl_reg; + + /*_rtl_pci_platform_switch_device_pci_aspm(dev,*/ + /*(priv->ndis_adapter.linkctrl_reg | ASPMLevel)); */ + + u_device_aspmsetting |= aspmlevel; + + _rtl_pci_platform_switch_device_pci_aspm(hw, u_device_aspmsetting); + + if (ppsc->reg_rfps_level & RT_RF_OFF_LEVL_CLK_REQ) { + _rtl_pci_switch_clk_req(hw, (ppsc->reg_rfps_level & + RT_RF_OFF_LEVL_CLK_REQ) ? 1 : 0); + RT_SET_PS_LEVEL(ppsc, RT_RF_OFF_LEVL_CLK_REQ); + } + udelay(200); +} + +static bool rtl_pci_get_amd_l1_patch(struct ieee80211_hw *hw) +{ + struct rtl_pci_priv *pcipriv = rtl_pcipriv(hw); + u32 pcicfg_addrport = pcipriv->ndis_adapter.pcicfg_addrport; + + bool status = false; + u8 offset_e0; + unsigned offset_e4; + + rtl_pci_raw_write_port_ulong(PCI_CONF_ADDRESS, + pcicfg_addrport + 0xE0); + rtl_pci_raw_write_port_uchar(PCI_CONF_DATA, 0xA0); + + rtl_pci_raw_write_port_ulong(PCI_CONF_ADDRESS, + pcicfg_addrport + 0xE0); + rtl_pci_raw_read_port_uchar(PCI_CONF_DATA, &offset_e0); + + if (offset_e0 == 0xA0) { + rtl_pci_raw_write_port_ulong(PCI_CONF_ADDRESS, + pcicfg_addrport + 0xE4); + rtl_pci_raw_read_port_ulong(PCI_CONF_DATA, &offset_e4); + if (offset_e4 & BIT(23)) + status = true; + } + + return status; +} + +static void rtl_pci_get_linkcontrol_field(struct ieee80211_hw *hw) +{ + struct rtl_pci_priv *pcipriv = rtl_pcipriv(hw); + u8 capabilityoffset = pcipriv->ndis_adapter.pcibridge_pciehdr_offset; + u32 pcicfg_addrport = pcipriv->ndis_adapter.pcicfg_addrport; + u8 linkctrl_reg; + u8 num4bBytes; + + num4bBytes = (capabilityoffset + 0x10) / 4; + + /*Read Link Control Register */ + rtl_pci_raw_write_port_ulong(PCI_CONF_ADDRESS, + pcicfg_addrport + (num4bBytes << 2)); + rtl_pci_raw_read_port_uchar(PCI_CONF_DATA, &linkctrl_reg); + + pcipriv->ndis_adapter.pcibridge_linkctrlreg = linkctrl_reg; +} + +static void rtl_pci_parse_configuration(struct pci_dev *pdev, + struct ieee80211_hw *hw) +{ + struct rtl_priv *rtlpriv = rtl_priv(hw); + struct rtl_pci_priv *pcipriv = rtl_pcipriv(hw); + + u8 tmp; + int pos; + u8 linkctrl_reg; + + /*Link Control Register */ + pos = pci_find_capability(pdev, PCI_CAP_ID_EXP); + pci_read_config_byte(pdev, pos + PCI_EXP_LNKCTL, &linkctrl_reg); + pcipriv->ndis_adapter.linkctrl_reg = linkctrl_reg; + + RT_TRACE(rtlpriv, COMP_INIT, DBG_TRACE, + ("Link Control Register =%x\n", + pcipriv->ndis_adapter.linkctrl_reg)); + + pci_read_config_byte(pdev, 0x98, &tmp); + tmp |= BIT(4); + pci_write_config_byte(pdev, 0x98, tmp); + + tmp = 0x17; + pci_write_config_byte(pdev, 0x70f, tmp); +} + +static void _rtl_pci_initialize_adapter_common(struct ieee80211_hw *hw) +{ + struct rtl_ps_ctl *ppsc = rtl_psc(rtl_priv(hw)); + + _rtl_pci_update_default_setting(hw); + + if (ppsc->reg_rfps_level & RT_RF_PS_LEVEL_ALWAYS_ASPM) { + /*Always enable ASPM & Clock Req. */ + rtl_pci_enable_aspm(hw); + RT_SET_PS_LEVEL(ppsc, RT_RF_PS_LEVEL_ALWAYS_ASPM); + } + +} + +static void rtl_pci_init_aspm(struct ieee80211_hw *hw) +{ + struct rtl_pci *rtlpci = rtl_pcidev(rtl_pcipriv(hw)); + + /*close ASPM for AMD defaultly */ + rtlpci->const_amdpci_aspm = 0; + + /* + * ASPM PS mode. + * 0 - Disable ASPM, + * 1 - Enable ASPM without Clock Req, + * 2 - Enable ASPM with Clock Req, + * 3 - Alwyas Enable ASPM with Clock Req, + * 4 - Always Enable ASPM without Clock Req. + * set defult to RTL8192CE:3 RTL8192E:2 + * */ + rtlpci->const_pci_aspm = 3; + + /*Setting for PCI-E device */ + rtlpci->const_devicepci_aspm_setting = 0x03; + + /*Setting for PCI-E bridge */ + rtlpci->const_hostpci_aspm_setting = 0x02; + + /* + * In Hw/Sw Radio Off situation. + * 0 - Default, + * 1 - From ASPM setting without low Mac Pwr, + * 2 - From ASPM setting with low Mac Pwr, + * 3 - Bus D3 + * set default to RTL8192CE:0 RTL8192SE:2 + */ + rtlpci->const_hwsw_rfoff_d3 = 0; + + /* + * This setting works for those device with + * backdoor ASPM setting such as EPHY setting. + * 0 - Not support ASPM, + * 1 - Support ASPM, + * 2 - According to chipset. + */ + rtlpci->const_support_pciaspm = 1; + + _rtl_pci_initialize_adapter_common(hw); +} + +static void _rtl_pci_io_handler_init(struct device *dev, + struct ieee80211_hw *hw) +{ + struct rtl_priv *rtlpriv = rtl_priv(hw); + + rtlpriv->io.dev = dev; + + rtlpriv->io.write8_async = pci_write8_async; + rtlpriv->io.write16_async = pci_write16_async; + rtlpriv->io.write32_async = pci_write32_async; + + rtlpriv->io.read8_sync = pci_read8_sync; + rtlpriv->io.read16_sync = pci_read16_sync; + rtlpriv->io.read32_sync = pci_read32_sync; + +} + +static void _rtl_pci_io_handler_release(struct ieee80211_hw *hw) +{ +} + +static void _rtl_pci_tx_isr(struct ieee80211_hw *hw, int prio) +{ + struct rtl_priv *rtlpriv = rtl_priv(hw); + struct rtl_pci *rtlpci = rtl_pcidev(rtl_pcipriv(hw)); + + struct rtl8192_tx_ring *ring = &rtlpci->tx_ring[prio]; + + while (skb_queue_len(&ring->queue)) { + struct rtl_tx_desc *entry = &ring->desc[ring->idx]; + struct sk_buff *skb; + struct ieee80211_tx_info *info; + + u8 own = (u8) rtlpriv->cfg->ops->get_desc((u8 *) entry, true, + HW_DESC_OWN); + + /* + *beacon packet will only use the first + *descriptor defautly,and the own may not + *be cleared by the hardware + */ + if (own) + return; + ring->idx = (ring->idx + 1) % ring->entries; + + skb = __skb_dequeue(&ring->queue); + pci_unmap_single(rtlpci->pdev, + le32_to_cpu(rtlpriv->cfg->ops-> + get_desc((u8 *) entry, true, + HW_DESC_TXBUFF_ADDR)), + skb->len, PCI_DMA_TODEVICE); + + RT_TRACE(rtlpriv, (COMP_INTR | COMP_SEND), DBG_TRACE, + ("new ring->idx:%d, " + "free: skb_queue_len:%d, free: seq:%x\n", + ring->idx, + skb_queue_len(&ring->queue), + *(u16 *) (skb->data + 22))); + + info = IEEE80211_SKB_CB(skb); + ieee80211_tx_info_clear_status(info); + + info->flags |= IEEE80211_TX_STAT_ACK; + /*info->status.rates[0].count = 1; */ + + ieee80211_tx_status_irqsafe(hw, skb); + + if ((ring->entries - skb_queue_len(&ring->queue)) + == 2) { + + RT_TRACE(rtlpriv, COMP_ERR, DBG_LOUD, + ("more desc left, wake" + "skb_queue@%d,ring->idx = %d," + "skb_queue_len = 0x%d\n", + prio, ring->idx, + skb_queue_len(&ring->queue))); + + ieee80211_wake_queue(hw, + skb_get_queue_mapping + (skb)); + } + + skb = NULL; + } + + if (((rtlpriv->link_info.num_rx_inperiod + + rtlpriv->link_info.num_tx_inperiod) > 8) || + (rtlpriv->link_info.num_rx_inperiod > 2)) { + rtl_lps_leave(hw); + } +} + +static void _rtl_pci_rx_interrupt(struct ieee80211_hw *hw) +{ + struct rtl_priv *rtlpriv = rtl_priv(hw); + struct rtl_pci *rtlpci = rtl_pcidev(rtl_pcipriv(hw)); + int rx_queue_idx = RTL_PCI_RX_MPDU_QUEUE; + + struct ieee80211_rx_status rx_status = { 0 }; + unsigned int count = rtlpci->rxringcount; + u8 own; + u8 tmp_one; + u32 bufferaddress; + bool unicast = false; + + struct rtl_stats stats = { + .signal = 0, + .noise = -98, + .rate = 0, + }; + + /*RX NORMAL PKT */ + while (count--) { + /*rx descriptor */ + struct rtl_rx_desc *pdesc = &rtlpci->rx_ring[rx_queue_idx].desc[ + rtlpci->rx_ring[rx_queue_idx].idx]; + /*rx pkt */ + struct sk_buff *skb = rtlpci->rx_ring[rx_queue_idx].rx_buf[ + rtlpci->rx_ring[rx_queue_idx].idx]; + + own = (u8) rtlpriv->cfg->ops->get_desc((u8 *) pdesc, + false, HW_DESC_OWN); + + if (own) { + /*wait data to be filled by hardware */ + return; + } else { + struct ieee80211_hdr *hdr; + u16 fc; + struct sk_buff *new_skb = NULL; + + rtlpriv->cfg->ops->query_rx_desc(hw, &stats, + &rx_status, + (u8 *) pdesc, skb); + + pci_unmap_single(rtlpci->pdev, + *((dma_addr_t *) skb->cb), + rtlpci->rxbuffersize, + PCI_DMA_FROMDEVICE); + + skb_put(skb, rtlpriv->cfg->ops->get_desc((u8 *) pdesc, + false, + HW_DESC_RXPKT_LEN)); + skb_reserve(skb, + stats.rx_drvinfo_size + stats.rx_bufshift); + + /* + *NOTICE This can not be use for mac80211, + *this is done in mac80211 code, + *if you done here sec DHCP will fail + *skb_trim(skb, skb->len - 4); + */ + + hdr = (struct ieee80211_hdr *)(skb->data); + fc = le16_to_cpu(hdr->frame_control); + + if (!stats.b_crc) { + memcpy(IEEE80211_SKB_RXCB(skb), &rx_status, + sizeof(rx_status)); + + if (is_broadcast_ether_addr(hdr->addr1)) + ;/*TODO*/ + else { + if (is_multicast_ether_addr(hdr->addr1)) + ;/*TODO*/ + else { + unicast = true; + rtlpriv->stats.rxbytesunicast += + skb->len; + } + } + + rtl_is_special_data(hw, skb, false); + + if (ieee80211_is_data(fc)) { + rtlpriv->cfg->ops->led_control(hw, + LED_CTL_RX); + + if (unicast) + rtlpriv->link_info. + num_rx_inperiod++; + } + + if (unlikely(!rtl_action_proc(hw, skb, + false))) { + dev_kfree_skb_any(skb); + } else { + struct sk_buff *uskb = NULL; + u8 *pdata; + uskb = dev_alloc_skb(skb->len + 128); + memcpy(IEEE80211_SKB_RXCB(uskb), + &rx_status, + sizeof(rx_status)); + pdata = (u8 *)skb_put(uskb, skb->len); + memcpy(pdata, skb->data, skb->len); + dev_kfree_skb_any(skb); + + ieee80211_rx_irqsafe(hw, uskb); + } + } else { + dev_kfree_skb_any(skb); + } + + if (((rtlpriv->link_info.num_rx_inperiod + + rtlpriv->link_info.num_tx_inperiod) > 8) || + (rtlpriv->link_info.num_rx_inperiod > 2)) { + rtl_lps_leave(hw); + } + + new_skb = dev_alloc_skb(rtlpci->rxbuffersize); + if (unlikely(!new_skb)) { + RT_TRACE(rtlpriv, (COMP_INTR | COMP_RECV), + DBG_DMESG, + ("can't alloc skb for rx\n")); + goto done; + } + skb = new_skb; + /*skb->dev = dev; */ + + rtlpci->rx_ring[rx_queue_idx].rx_buf[rtlpci-> + rx_ring + [rx_queue_idx]. + idx] = skb; + *((dma_addr_t *) skb->cb) = + pci_map_single(rtlpci->pdev, skb_tail_pointer(skb), + rtlpci->rxbuffersize, + PCI_DMA_FROMDEVICE); + + } +done: + bufferaddress = cpu_to_le32(*((dma_addr_t *) skb->cb)); + tmp_one = 1; + rtlpriv->cfg->ops->set_desc((u8 *) pdesc, false, + HW_DESC_RXBUFF_ADDR, + (u8 *)&bufferaddress); + rtlpriv->cfg->ops->set_desc((u8 *)pdesc, false, HW_DESC_RXOWN, + (u8 *)&tmp_one); + rtlpriv->cfg->ops->set_desc((u8 *)pdesc, false, + HW_DESC_RXPKT_LEN, + (u8 *)&rtlpci->rxbuffersize); + + if (rtlpci->rx_ring[rx_queue_idx].idx == + rtlpci->rxringcount - 1) + rtlpriv->cfg->ops->set_desc((u8 *)pdesc, false, + HW_DESC_RXERO, + (u8 *)&tmp_one); + + rtlpci->rx_ring[rx_queue_idx].idx = + (rtlpci->rx_ring[rx_queue_idx].idx + 1) % + rtlpci->rxringcount; + } + +} + +void _rtl_pci_tx_interrupt(struct ieee80211_hw *hw) +{ + struct rtl_priv *rtlpriv = rtl_priv(hw); + struct rtl_pci *rtlpci = rtl_pcidev(rtl_pcipriv(hw)); + int prio; + + for (prio = 0; prio < RTL_PCI_MAX_TX_QUEUE_COUNT; prio++) { + struct rtl8192_tx_ring *ring = &rtlpci->tx_ring[prio]; + + while (skb_queue_len(&ring->queue)) { + struct rtl_tx_desc *entry = &ring->desc[ring->idx]; + struct sk_buff *skb; + struct ieee80211_tx_info *info; + u8 own; + + /* + *beacon packet will only use the first + *descriptor defautly, and the own may not + *be cleared by the hardware, and + *beacon will free in prepare beacon + */ + if (prio == BEACON_QUEUE || prio == TXCMD_QUEUE || + prio == HCCA_QUEUE) + break; + + own = (u8)rtlpriv->cfg->ops->get_desc((u8 *)entry, + true, + HW_DESC_OWN); + + if (own) + break; + + skb = __skb_dequeue(&ring->queue); + pci_unmap_single(rtlpci->pdev, + le32_to_cpu(rtlpriv->cfg->ops-> + get_desc((u8 *) entry, + true, + HW_DESC_TXBUFF_ADDR)), + skb->len, PCI_DMA_TODEVICE); + + ring->idx = (ring->idx + 1) % ring->entries; + + info = IEEE80211_SKB_CB(skb); + ieee80211_tx_info_clear_status(info); + + info->flags |= IEEE80211_TX_STAT_ACK; + /*info->status.rates[0].count = 1; */ + + ieee80211_tx_status_irqsafe(hw, skb); + + if ((ring->entries - skb_queue_len(&ring->queue)) + == 2 && prio != BEACON_QUEUE) { + RT_TRACE(rtlpriv, COMP_ERR, DBG_EMERG, + ("more desc left, wake " + "skb_queue@%d,ring->idx = %d," + "skb_queue_len = 0x%d\n", + prio, ring->idx, + skb_queue_len(&ring->queue))); + + ieee80211_wake_queue(hw, + skb_get_queue_mapping + (skb)); + } + + skb = NULL; + } + } +} + +static irqreturn_t _rtl_pci_interrupt(int irq, void *dev_id) +{ + struct ieee80211_hw *hw = dev_id; + struct rtl_priv *rtlpriv = rtl_priv(hw); + struct rtl_pci *rtlpci = rtl_pcidev(rtl_pcipriv(hw)); + unsigned long flags; + u32 inta = 0; + u32 intb = 0; + + if (rtlpci->irq_enabled == 0) + return IRQ_HANDLED; + + spin_lock_irqsave(&rtlpriv->locks.irq_th_lock, flags); + + /*read ISR: 4/8bytes */ + rtlpriv->cfg->ops->interrupt_recognized(hw, &inta, &intb); + + /*Shared IRQ or HW disappared */ + if (!inta || inta == 0xffff) + goto done; + + /*<1> beacon related */ + if (inta & rtlpriv->cfg->maps[RTL_IMR_TBDOK]) { + RT_TRACE(rtlpriv, COMP_INTR, DBG_TRACE, + ("beacon ok interrupt!\n")); + } + + if (unlikely(inta & rtlpriv->cfg->maps[RTL_IMR_TBDER])) { + RT_TRACE(rtlpriv, COMP_INTR, DBG_TRACE, + ("beacon err interrupt!\n")); + } + + if (inta & rtlpriv->cfg->maps[RTL_IMR_BDOK]) { + RT_TRACE(rtlpriv, COMP_INTR, DBG_TRACE, + ("beacon interrupt!\n")); + } + + if (inta & rtlpriv->cfg->maps[RTL_IMR_BcnInt]) { + RT_TRACE(rtlpriv, COMP_INTR, DBG_TRACE, + ("prepare beacon for interrupt!\n")); + tasklet_schedule(&rtlpriv->works.irq_prepare_bcn_tasklet); + } + + /*<3> Tx related */ + if (unlikely(inta & rtlpriv->cfg->maps[RTL_IMR_TXFOVW])) + RT_TRACE(rtlpriv, COMP_ERR, DBG_WARNING, ("IMR_TXFOVW!\n")); + + if (inta & rtlpriv->cfg->maps[RTL_IMR_MGNTDOK]) { + RT_TRACE(rtlpriv, COMP_INTR, DBG_TRACE, + ("Manage ok interrupt!\n")); + _rtl_pci_tx_isr(hw, MGNT_QUEUE); + } + + if (inta & rtlpriv->cfg->maps[RTL_IMR_HIGHDOK]) { + RT_TRACE(rtlpriv, COMP_INTR, DBG_TRACE, + ("HIGH_QUEUE ok interrupt!\n")); + _rtl_pci_tx_isr(hw, HIGH_QUEUE); + } + + if (inta & rtlpriv->cfg->maps[RTL_IMR_BKDOK]) { + rtlpriv->link_info.num_tx_inperiod++; + + RT_TRACE(rtlpriv, COMP_INTR, DBG_TRACE, + ("BK Tx OK interrupt!\n")); + _rtl_pci_tx_isr(hw, BK_QUEUE); + } + + if (inta & rtlpriv->cfg->maps[RTL_IMR_BEDOK]) { + rtlpriv->link_info.num_tx_inperiod++; + + RT_TRACE(rtlpriv, COMP_INTR, DBG_TRACE, + ("BE TX OK interrupt!\n")); + _rtl_pci_tx_isr(hw, BE_QUEUE); + } + + if (inta & rtlpriv->cfg->maps[RTL_IMR_VIDOK]) { + rtlpriv->link_info.num_tx_inperiod++; + + RT_TRACE(rtlpriv, COMP_INTR, DBG_TRACE, + ("VI TX OK interrupt!\n")); + _rtl_pci_tx_isr(hw, VI_QUEUE); + } + + if (inta & rtlpriv->cfg->maps[RTL_IMR_VODOK]) { + rtlpriv->link_info.num_tx_inperiod++; + + RT_TRACE(rtlpriv, COMP_INTR, DBG_TRACE, + ("Vo TX OK interrupt!\n")); + _rtl_pci_tx_isr(hw, VO_QUEUE); + } + + /*<2> Rx related */ + if (inta & rtlpriv->cfg->maps[RTL_IMR_ROK]) { + RT_TRACE(rtlpriv, COMP_INTR, DBG_TRACE, ("Rx ok interrupt!\n")); + tasklet_schedule(&rtlpriv->works.irq_tasklet); + } + + if (unlikely(inta & rtlpriv->cfg->maps[RTL_IMR_RDU])) { + RT_TRACE(rtlpriv, COMP_ERR, DBG_WARNING, + ("rx descriptor unavailable!\n")); + tasklet_schedule(&rtlpriv->works.irq_tasklet); + } + + if (unlikely(inta & rtlpriv->cfg->maps[RTL_IMR_RXFOVW])) { + RT_TRACE(rtlpriv, COMP_ERR, DBG_WARNING, ("rx overflow !\n")); + tasklet_schedule(&rtlpriv->works.irq_tasklet); + } + + spin_unlock_irqrestore(&rtlpriv->locks.irq_th_lock, flags); + return IRQ_HANDLED; + +done: + spin_unlock_irqrestore(&rtlpriv->locks.irq_th_lock, flags); + return IRQ_HANDLED; +} + +static void _rtl_pci_irq_tasklet(struct ieee80211_hw *hw) +{ + _rtl_pci_rx_interrupt(hw); +} + +static void _rtl_pci_prepare_bcn_tasklet(struct ieee80211_hw *hw) +{ + struct rtl_priv *rtlpriv = rtl_priv(hw); + struct rtl_pci *rtlpci = rtl_pcidev(rtl_pcipriv(hw)); + struct rtl_mac *mac = rtl_mac(rtl_priv(hw)); + struct rtl8192_tx_ring *ring = &rtlpci->tx_ring[BEACON_QUEUE]; + struct ieee80211_hdr *hdr = NULL; + struct ieee80211_tx_info *info = NULL; + struct sk_buff *pskb = NULL; + struct rtl_tx_desc *pdesc = NULL; + unsigned int queue_index; + u8 temp_one = 1; + + ring = &rtlpci->tx_ring[BEACON_QUEUE]; + pskb = __skb_dequeue(&ring->queue); + if (pskb) + kfree_skb(pskb); + + /*NB: the beacon data buffer must be 32-bit aligned. */ + pskb = ieee80211_beacon_get(hw, mac->vif); + if (pskb == NULL) + return; + hdr = (struct ieee80211_hdr *)(pskb->data); + info = IEEE80211_SKB_CB(pskb); + + queue_index = BEACON_QUEUE; + + pdesc = &ring->desc[0]; + rtlpriv->cfg->ops->fill_tx_desc(hw, hdr, (u8 *) pdesc, + info, pskb, queue_index); + + __skb_queue_tail(&ring->queue, pskb); + + rtlpriv->cfg->ops->set_desc((u8 *) pdesc, true, HW_DESC_OWN, + (u8 *)&temp_one); + + return; +} + +static void _rtl_pci_init_trx_var(struct ieee80211_hw *hw) +{ + struct rtl_pci *rtlpci = rtl_pcidev(rtl_pcipriv(hw)); + u8 i; + + for (i = 0; i < RTL_PCI_MAX_TX_QUEUE_COUNT; i++) + rtlpci->txringcount[i] = RT_TXDESC_NUM; + + /* + *we just alloc 2 desc for beacon queue, + *because we just need first desc in hw beacon. + */ + rtlpci->txringcount[BEACON_QUEUE] = 2; + + /* + *BE queue need more descriptor for performance + *consideration or, No more tx desc will happen, + *and may cause mac80211 mem leakage. + */ + rtlpci->txringcount[BE_QUEUE] = RT_TXDESC_NUM_BE_QUEUE; + + rtlpci->rxbuffersize = 9100; /*2048/1024; */ + rtlpci->rxringcount = RTL_PCI_MAX_RX_COUNT; /*64; */ +} + +static void _rtl_pci_init_struct(struct ieee80211_hw *hw, + struct pci_dev *pdev) +{ + struct rtl_priv *rtlpriv = rtl_priv(hw); + struct rtl_mac *mac = rtl_mac(rtl_priv(hw)); + struct rtl_pci *rtlpci = rtl_pcidev(rtl_pcipriv(hw)); + struct rtl_hal *rtlhal = rtl_hal(rtl_priv(hw)); + struct rtl_ps_ctl *ppsc = rtl_psc(rtl_priv(hw)); + + rtlpci->up_first_time = true; + rtlpci->being_init_adapter = false; + + rtlhal->hw = hw; + rtlpci->pdev = pdev; + + ppsc->b_inactiveps = false; + ppsc->b_leisure_ps = true; + ppsc->b_fwctrl_lps = true; + ppsc->b_reg_fwctrl_lps = 3; + ppsc->reg_max_lps_awakeintvl = 5; + + if (ppsc->b_reg_fwctrl_lps == 1) + ppsc->fwctrl_psmode = FW_PS_MIN_MODE; + else if (ppsc->b_reg_fwctrl_lps == 2) + ppsc->fwctrl_psmode = FW_PS_MAX_MODE; + else if (ppsc->b_reg_fwctrl_lps == 3) + ppsc->fwctrl_psmode = FW_PS_DTIM_MODE; + + /*Tx/Rx related var */ + _rtl_pci_init_trx_var(hw); + + /*IBSS*/ mac->beacon_interval = 100; + + /*AMPDU*/ mac->min_space_cfg = 0; + mac->max_mss_density = 0; + /*set sane AMPDU defaults */ + mac->current_ampdu_density = 7; + mac->current_ampdu_factor = 3; + + /*QOS*/ rtlpci->acm_method = eAcmWay2_SW; + + /*task */ + tasklet_init(&rtlpriv->works.irq_tasklet, + (void (*)(unsigned long))_rtl_pci_irq_tasklet, + (unsigned long)hw); + tasklet_init(&rtlpriv->works.irq_prepare_bcn_tasklet, + (void (*)(unsigned long))_rtl_pci_prepare_bcn_tasklet, + (unsigned long)hw); +} + +static int _rtl_pci_init_tx_ring(struct ieee80211_hw *hw, + unsigned int prio, unsigned int entries) +{ + struct rtl_pci *rtlpci = rtl_pcidev(rtl_pcipriv(hw)); + struct rtl_priv *rtlpriv = rtl_priv(hw); + struct rtl_tx_desc *ring; + dma_addr_t dma; + u32 nextdescaddress; + int i; + + ring = pci_alloc_consistent(rtlpci->pdev, + sizeof(*ring) * entries, &dma); + + if (!ring || (unsigned long)ring & 0xFF) { + RT_TRACE(rtlpriv, COMP_ERR, DBG_EMERG, + ("Cannot allocate TX ring (prio = %d)\n", prio)); + return -ENOMEM; + } + + memset(ring, 0, sizeof(*ring) * entries); + rtlpci->tx_ring[prio].desc = ring; + rtlpci->tx_ring[prio].dma = dma; + rtlpci->tx_ring[prio].idx = 0; + rtlpci->tx_ring[prio].entries = entries; + skb_queue_head_init(&rtlpci->tx_ring[prio].queue); + + RT_TRACE(rtlpriv, COMP_INIT, DBG_LOUD, + ("queue:%d, ring_addr:%p\n", prio, ring)); + + for (i = 0; i < entries; i++) { + nextdescaddress = cpu_to_le32((u32) dma + + ((i + 1) % entries) * + sizeof(*ring)); + + rtlpriv->cfg->ops->set_desc((u8 *)&(ring[i]), + true, HW_DESC_TX_NEXTDESC_ADDR, + (u8 *)&nextdescaddress); + } + + return 0; +} + +static int _rtl_pci_init_rx_ring(struct ieee80211_hw *hw) +{ + struct rtl_pci *rtlpci = rtl_pcidev(rtl_pcipriv(hw)); + struct rtl_priv *rtlpriv = rtl_priv(hw); + struct rtl_rx_desc *entry = NULL; + int i, rx_queue_idx; + u8 tmp_one = 1; + + /* + *rx_queue_idx 0:RX_MPDU_QUEUE + *rx_queue_idx 1:RX_CMD_QUEUE + */ + for (rx_queue_idx = 0; rx_queue_idx < RTL_PCI_MAX_RX_QUEUE; + rx_queue_idx++) { + rtlpci->rx_ring[rx_queue_idx].desc = + pci_alloc_consistent(rtlpci->pdev, + sizeof(*rtlpci->rx_ring[rx_queue_idx]. + desc) * rtlpci->rxringcount, + &rtlpci->rx_ring[rx_queue_idx].dma); + + if (!rtlpci->rx_ring[rx_queue_idx].desc || + (unsigned long)rtlpci->rx_ring[rx_queue_idx].desc & 0xFF) { + RT_TRACE(rtlpriv, COMP_ERR, DBG_EMERG, + ("Cannot allocate RX ring\n")); + return -ENOMEM; + } + + memset(rtlpci->rx_ring[rx_queue_idx].desc, 0, + sizeof(*rtlpci->rx_ring[rx_queue_idx].desc) * + rtlpci->rxringcount); + + rtlpci->rx_ring[rx_queue_idx].idx = 0; + + for (i = 0; i < rtlpci->rxringcount; i++) { + struct sk_buff *skb = + dev_alloc_skb(rtlpci->rxbuffersize); + u32 bufferaddress; + entry = &rtlpci->rx_ring[rx_queue_idx].desc[i]; + if (!skb) + return 0; + + /*skb->dev = dev; */ + + rtlpci->rx_ring[rx_queue_idx].rx_buf[i] = skb; + + /* + *just set skb->cb to mapping addr + *for pci_unmap_single use + */ + *((dma_addr_t *) skb->cb) = + pci_map_single(rtlpci->pdev, skb_tail_pointer(skb), + rtlpci->rxbuffersize, + PCI_DMA_FROMDEVICE); + + bufferaddress = cpu_to_le32(*((dma_addr_t *)skb->cb)); + rtlpriv->cfg->ops->set_desc((u8 *)entry, false, + HW_DESC_RXBUFF_ADDR, + (u8 *)&bufferaddress); + rtlpriv->cfg->ops->set_desc((u8 *)entry, false, + HW_DESC_RXPKT_LEN, + (u8 *)&rtlpci-> + rxbuffersize); + rtlpriv->cfg->ops->set_desc((u8 *) entry, false, + HW_DESC_RXOWN, + (u8 *)&tmp_one); + } + + rtlpriv->cfg->ops->set_desc((u8 *) entry, false, + HW_DESC_RXERO, (u8 *)&tmp_one); + } + return 0; +} + +static void _rtl_pci_free_tx_ring(struct ieee80211_hw *hw, + unsigned int prio) +{ + struct rtl_priv *rtlpriv = rtl_priv(hw); + struct rtl_pci *rtlpci = rtl_pcidev(rtl_pcipriv(hw)); + struct rtl8192_tx_ring *ring = &rtlpci->tx_ring[prio]; + + while (skb_queue_len(&ring->queue)) { + struct rtl_tx_desc *entry = &ring->desc[ring->idx]; + struct sk_buff *skb = __skb_dequeue(&ring->queue); + + pci_unmap_single(rtlpci->pdev, + le32_to_cpu(rtlpriv->cfg-> + ops->get_desc((u8 *) entry, true, + HW_DESC_TXBUFF_ADDR)), + skb->len, PCI_DMA_TODEVICE); + kfree_skb(skb); + ring->idx = (ring->idx + 1) % ring->entries; + } + + pci_free_consistent(rtlpci->pdev, + sizeof(*ring->desc) * ring->entries, + ring->desc, ring->dma); + ring->desc = NULL; +} + +static void _rtl_pci_free_rx_ring(struct rtl_pci *rtlpci) +{ + int i, rx_queue_idx; + + /*rx_queue_idx 0:RX_MPDU_QUEUE */ + /*rx_queue_idx 1:RX_CMD_QUEUE */ + for (rx_queue_idx = 0; rx_queue_idx < RTL_PCI_MAX_RX_QUEUE; + rx_queue_idx++) { + for (i = 0; i < rtlpci->rxringcount; i++) { + struct sk_buff *skb = + rtlpci->rx_ring[rx_queue_idx].rx_buf[i]; + if (!skb) + continue; + + pci_unmap_single(rtlpci->pdev, + *((dma_addr_t *) skb->cb), + rtlpci->rxbuffersize, + PCI_DMA_FROMDEVICE); + kfree_skb(skb); + } + + pci_free_consistent(rtlpci->pdev, + sizeof(*rtlpci->rx_ring[rx_queue_idx]. + desc) * rtlpci->rxringcount, + rtlpci->rx_ring[rx_queue_idx].desc, + rtlpci->rx_ring[rx_queue_idx].dma); + rtlpci->rx_ring[rx_queue_idx].desc = NULL; + } +} + +static int _rtl_pci_init_trx_ring(struct ieee80211_hw *hw) +{ + struct rtl_pci *rtlpci = rtl_pcidev(rtl_pcipriv(hw)); + int ret; + int i; + + ret = _rtl_pci_init_rx_ring(hw); + if (ret) + return ret; + + for (i = 0; i < RTL_PCI_MAX_TX_QUEUE_COUNT; i++) { + ret = _rtl_pci_init_tx_ring(hw, i, + rtlpci->txringcount[i]); + if (ret) + goto err_free_rings; + } + + return 0; + +err_free_rings: + _rtl_pci_free_rx_ring(rtlpci); + + for (i = 0; i < RTL_PCI_MAX_TX_QUEUE_COUNT; i++) + if (rtlpci->tx_ring[i].desc) + _rtl_pci_free_tx_ring(hw, i); + + return 1; +} + +static int _rtl_pci_deinit_trx_ring(struct ieee80211_hw *hw) +{ + struct rtl_pci *rtlpci = rtl_pcidev(rtl_pcipriv(hw)); + u32 i; + + /*free rx rings */ + _rtl_pci_free_rx_ring(rtlpci); + + /*free tx rings */ + for (i = 0; i < RTL_PCI_MAX_TX_QUEUE_COUNT; i++) + _rtl_pci_free_tx_ring(hw, i); + + return 0; +} + +int rtl_pci_reset_trx_ring(struct ieee80211_hw *hw) +{ + struct rtl_priv *rtlpriv = rtl_priv(hw); + struct rtl_pci *rtlpci = rtl_pcidev(rtl_pcipriv(hw)); + int i, rx_queue_idx; + unsigned long flags; + u8 tmp_one = 1; + + /*rx_queue_idx 0:RX_MPDU_QUEUE */ + /*rx_queue_idx 1:RX_CMD_QUEUE */ + for (rx_queue_idx = 0; rx_queue_idx < RTL_PCI_MAX_RX_QUEUE; + rx_queue_idx++) { + /* + *force the rx_ring[RX_MPDU_QUEUE/ + *RX_CMD_QUEUE].idx to the first one + */ + if (rtlpci->rx_ring[rx_queue_idx].desc) { + struct rtl_rx_desc *entry = NULL; + + for (i = 0; i < rtlpci->rxringcount; i++) { + entry = &rtlpci->rx_ring[rx_queue_idx].desc[i]; + rtlpriv->cfg->ops->set_desc((u8 *) entry, + false, + HW_DESC_RXOWN, + (u8 *)&tmp_one); + } + rtlpci->rx_ring[rx_queue_idx].idx = 0; + } + } + + /* + *after reset, release previous pending packet, + *and force the tx idx to the first one + */ + spin_lock_irqsave(&rtlpriv->locks.irq_th_lock, flags); + for (i = 0; i < RTL_PCI_MAX_TX_QUEUE_COUNT; i++) { + if (rtlpci->tx_ring[i].desc) { + struct rtl8192_tx_ring *ring = &rtlpci->tx_ring[i]; + + while (skb_queue_len(&ring->queue)) { + struct rtl_tx_desc *entry = + &ring->desc[ring->idx]; + struct sk_buff *skb = + __skb_dequeue(&ring->queue); + + pci_unmap_single(rtlpci->pdev, + le32_to_cpu(rtlpriv->cfg->ops-> + get_desc((u8 *) + entry, + true, + HW_DESC_TXBUFF_ADDR)), + skb->len, PCI_DMA_TODEVICE); + kfree_skb(skb); + ring->idx = (ring->idx + 1) % ring->entries; + } + ring->idx = 0; + } + } + + spin_unlock_irqrestore(&rtlpriv->locks.irq_th_lock, flags); + + return 0; +} + +unsigned int _rtl_mac_to_hwqueue(u16 fc, + unsigned int mac80211_queue_index) +{ + unsigned int hw_queue_index; + + if (unlikely(ieee80211_is_beacon(fc))) { + hw_queue_index = BEACON_QUEUE; + goto out; + } + + if (ieee80211_is_mgmt(fc)) { + hw_queue_index = MGNT_QUEUE; + goto out; + } + + switch (mac80211_queue_index) { + case 0: + hw_queue_index = VO_QUEUE; + break; + case 1: + hw_queue_index = VI_QUEUE; + break; + case 2: + hw_queue_index = BE_QUEUE;; + break; + case 3: + hw_queue_index = BK_QUEUE; + break; + default: + hw_queue_index = BE_QUEUE; + RT_ASSERT(false, ("QSLT_BE queue, skb_queue:%d\n", + mac80211_queue_index)); + break; + } + +out: + return hw_queue_index; +} + +int rtl_pci_tx(struct ieee80211_hw *hw, struct sk_buff *skb) +{ + struct rtl_priv *rtlpriv = rtl_priv(hw); + struct rtl_mac *mac = rtl_mac(rtl_priv(hw)); + struct ieee80211_tx_info *info = IEEE80211_SKB_CB(skb); + struct rtl8192_tx_ring *ring; + struct rtl_tx_desc *pdesc; + u8 idx; + unsigned int queue_index, hw_queue; + unsigned long flags; + struct ieee80211_hdr *hdr = (struct ieee80211_hdr *)(skb->data); + u16 fc = le16_to_cpu(hdr->frame_control); + u8 *pda_addr = hdr->addr1; + struct rtl_pci *rtlpci = rtl_pcidev(rtl_pcipriv(hw)); + /*ssn */ + u8 *qc = NULL; + u8 tid = 0; + u16 seq_number = 0; + u8 own; + u8 temp_one = 1; + + if (ieee80211_is_mgmt(fc)) + rtl_tx_mgmt_proc(hw, skb); + rtl_action_proc(hw, skb, true); + + queue_index = skb_get_queue_mapping(skb); + hw_queue = _rtl_mac_to_hwqueue(fc, queue_index); + + if (is_multicast_ether_addr(pda_addr)) + rtlpriv->stats.txbytesmulticast += skb->len; + else if (is_broadcast_ether_addr(pda_addr)) + rtlpriv->stats.txbytesbroadcast += skb->len; + else + rtlpriv->stats.txbytesunicast += skb->len; + + spin_lock_irqsave(&rtlpriv->locks.irq_th_lock, flags); + + ring = &rtlpci->tx_ring[hw_queue]; + if (hw_queue != BEACON_QUEUE) + idx = (ring->idx + skb_queue_len(&ring->queue)) % + ring->entries; + else + idx = 0; + + pdesc = &ring->desc[idx]; + own = (u8) rtlpriv->cfg->ops->get_desc((u8 *) pdesc, + true, HW_DESC_OWN); + + if ((own == 1) && (hw_queue != BEACON_QUEUE)) { + RT_TRACE(rtlpriv, COMP_ERR, DBG_WARNING, + ("No more TX desc@%d, ring->idx = %d," + "idx = %d, skb_queue_len = 0x%d\n", + hw_queue, ring->idx, idx, + skb_queue_len(&ring->queue))); + + spin_unlock_irqrestore(&rtlpriv->locks.irq_th_lock, flags); + return skb->len; + } + + /* + *if(ieee80211_is_nullfunc(fc)) { + * spin_unlock_irqrestore(&rtlpriv->locks.irq_th_lock, flags); + * return 1; + *} + */ + + if (ieee80211_is_data_qos(fc)) { + qc = ieee80211_get_qos_ctl(hdr); + tid = qc[0] & IEEE80211_QOS_CTL_TID_MASK; + + seq_number = mac->tids[tid].seq_number; + seq_number &= IEEE80211_SCTL_SEQ; + /* + *hdr->seq_ctrl = hdr->seq_ctrl & + *cpu_to_le16(IEEE80211_SCTL_FRAG); + *hdr->seq_ctrl |= cpu_to_le16(seq_number); + */ + + seq_number += 1; + } + + if (ieee80211_is_data(fc)) + rtlpriv->cfg->ops->led_control(hw, LED_CTL_TX); + + rtlpriv->cfg->ops->fill_tx_desc(hw, hdr, (u8 *) pdesc, + info, skb, hw_queue); + + __skb_queue_tail(&ring->queue, skb); + + rtlpriv->cfg->ops->set_desc((u8 *) pdesc, true, + HW_DESC_OWN, (u8 *)&temp_one); + + if (!ieee80211_has_morefrags(hdr->frame_control)) { + if (qc) + mac->tids[tid].seq_number = seq_number; + } + + if ((ring->entries - skb_queue_len(&ring->queue)) < 2 && + hw_queue != BEACON_QUEUE) { + + RT_TRACE(rtlpriv, COMP_ERR, DBG_LOUD, + ("less desc left, stop skb_queue@%d, " + "ring->idx = %d," + "idx = %d, skb_queue_len = 0x%d\n", + hw_queue, ring->idx, idx, + skb_queue_len(&ring->queue))); + + ieee80211_stop_queue(hw, skb_get_queue_mapping(skb)); + } + + spin_unlock_irqrestore(&rtlpriv->locks.irq_th_lock, flags); + + rtlpriv->cfg->ops->tx_polling(hw, hw_queue); + + return 0; +} + +void rtl_pci_deinit(struct ieee80211_hw *hw) +{ + struct rtl_priv *rtlpriv = rtl_priv(hw); + struct rtl_pci *rtlpci = rtl_pcidev(rtl_pcipriv(hw)); + + _rtl_pci_deinit_trx_ring(hw); + + synchronize_irq(rtlpci->pdev->irq); + tasklet_kill(&rtlpriv->works.irq_tasklet); + + flush_workqueue(rtlpriv->works.rtl_wq); + destroy_workqueue(rtlpriv->works.rtl_wq); + +} + +int rtl_pci_init(struct ieee80211_hw *hw, struct pci_dev *pdev) +{ + struct rtl_priv *rtlpriv = rtl_priv(hw); + int err; + + _rtl_pci_init_struct(hw, pdev); + + err = _rtl_pci_init_trx_ring(hw); + if (err) { + RT_TRACE(rtlpriv, COMP_ERR, DBG_EMERG, + ("tx ring initialization failed")); + return err; + } + + return 1; +} + +int rtl_pci_start(struct ieee80211_hw *hw) +{ + struct rtl_priv *rtlpriv = rtl_priv(hw); + struct rtl_hal *rtlhal = rtl_hal(rtl_priv(hw)); + struct rtl_pci *rtlpci = rtl_pcidev(rtl_pcipriv(hw)); + struct rtl_ps_ctl *ppsc = rtl_psc(rtl_priv(hw)); + + int err; + + rtl_pci_reset_trx_ring(hw); + + rtlpci->driver_is_goingto_unload = false; + err = rtlpriv->cfg->ops->hw_init(hw); + if (err) { + RT_TRACE(rtlpriv, COMP_INIT, DBG_DMESG, + ("Failed to config hardware!\n")); + return err; + } + + rtlpriv->cfg->ops->enable_interrupt(hw); + RT_TRACE(rtlpriv, COMP_INIT, DBG_LOUD, ("enable_interrupt OK\n")); + + rtl_init_rx_config(hw); + + /*should after adapter start and interrupt enable. */ + set_hal_start(rtlhal); + + RT_CLEAR_PS_LEVEL(ppsc, RT_RF_OFF_LEVL_HALT_NIC); + + rtlpci->up_first_time = false; + + RT_TRACE(rtlpriv, COMP_INIT, DBG_DMESG, ("OK\n")); + return 0; +} + +void rtl_pci_stop(struct ieee80211_hw *hw) +{ + struct rtl_priv *rtlpriv = rtl_priv(hw); + struct rtl_pci *rtlpci = rtl_pcidev(rtl_pcipriv(hw)); + struct rtl_ps_ctl *ppsc = rtl_psc(rtl_priv(hw)); + struct rtl_hal *rtlhal = rtl_hal(rtl_priv(hw)); + unsigned long flags; + u8 RFInProgressTimeOut = 0; + + /* + *should before disable interrrupt&adapter + *and will do it immediately. + */ + set_hal_stop(rtlhal); + + rtlpriv->cfg->ops->disable_interrupt(hw); + + spin_lock_irqsave(&rtlpriv->locks.rf_ps_lock, flags); + while (ppsc->rfchange_inprogress) { + spin_unlock_irqrestore(&rtlpriv->locks.rf_ps_lock, flags); + if (RFInProgressTimeOut > 100) { + spin_lock_irqsave(&rtlpriv->locks.rf_ps_lock, flags); + break; + } + mdelay(1); + RFInProgressTimeOut++; + spin_lock_irqsave(&rtlpriv->locks.rf_ps_lock, flags); + } + ppsc->rfchange_inprogress = true; + spin_unlock_irqrestore(&rtlpriv->locks.rf_ps_lock, flags); + + rtlpci->driver_is_goingto_unload = true; + rtlpriv->cfg->ops->hw_disable(hw); + rtlpriv->cfg->ops->led_control(hw, LED_CTL_POWER_OFF); + + spin_lock_irqsave(&rtlpriv->locks.rf_ps_lock, flags); + ppsc->rfchange_inprogress = false; + spin_unlock_irqrestore(&rtlpriv->locks.rf_ps_lock, flags); + + rtl_pci_enable_aspm(hw); +} + +static bool _rtl_pci_find_adapter(struct pci_dev *pdev, + struct ieee80211_hw *hw) +{ + struct rtl_priv *rtlpriv = rtl_priv(hw); + struct rtl_pci_priv *pcipriv = rtl_pcipriv(hw); + struct rtl_hal *rtlhal = rtl_hal(rtl_priv(hw)); + struct pci_dev *bridge_pdev = pdev->bus->self; + u16 venderid; + u16 deviceid; + u8 revisionid; + u16 irqline; + u8 tmp; + + venderid = pdev->vendor; + deviceid = pdev->device; + pci_read_config_byte(pdev, 0x8, &revisionid); + pci_read_config_word(pdev, 0x3C, &irqline); + + if (deviceid == RTL_PCI_8192_DID || + deviceid == RTL_PCI_0044_DID || + deviceid == RTL_PCI_0047_DID || + deviceid == RTL_PCI_8192SE_DID || + deviceid == RTL_PCI_8174_DID || + deviceid == RTL_PCI_8173_DID || + deviceid == RTL_PCI_8172_DID || + deviceid == RTL_PCI_8171_DID) { + switch (revisionid) { + case RTL_PCI_REVISION_ID_8192PCIE: + RT_TRACE(rtlpriv, COMP_INIT, DBG_DMESG, + ("8192 PCI-E is found - " + "vid/did=%x/%x\n", venderid, deviceid)); + rtlhal->hw_type = HARDWARE_TYPE_RTL8192E; + break; + case RTL_PCI_REVISION_ID_8192SE: + RT_TRACE(rtlpriv, COMP_INIT, DBG_DMESG, + ("8192SE is found - " + "vid/did=%x/%x\n", venderid, deviceid)); + rtlhal->hw_type = HARDWARE_TYPE_RTL8192SE; + break; + default: + RT_TRACE(rtlpriv, COMP_ERR, DBG_WARNING, + ("Err: Unknown device - " + "vid/did=%x/%x\n", venderid, deviceid)); + rtlhal->hw_type = HARDWARE_TYPE_RTL8192SE; + break; + + } + } else if (deviceid == RTL_PCI_8192CET_DID || + deviceid == RTL_PCI_8192CE_DID || + deviceid == RTL_PCI_8191CE_DID || + deviceid == RTL_PCI_8188CE_DID) { + rtlhal->hw_type = HARDWARE_TYPE_RTL8192CE; + RT_TRACE(rtlpriv, COMP_INIT, DBG_DMESG, + ("8192C PCI-E is found - " + "vid/did=%x/%x\n", venderid, deviceid)); + } else { + RT_TRACE(rtlpriv, COMP_ERR, DBG_WARNING, + ("Err: Unknown device -" + " vid/did=%x/%x\n", venderid, deviceid)); + + rtlhal->hw_type = RTL_DEFAULT_HARDWARE_TYPE; + } + + /*find bus info */ + pcipriv->ndis_adapter.busnumber = pdev->bus->number; + pcipriv->ndis_adapter.devnumber = PCI_SLOT(pdev->devfn); + pcipriv->ndis_adapter.funcnumber = PCI_FUNC(pdev->devfn); + + /*find bridge info */ + pcipriv->ndis_adapter.pcibridge_vendorid = bridge_pdev->vendor; + for (tmp = 0; tmp < PCI_BRIDGE_VENDOR_MAX; tmp++) { + if (bridge_pdev->vendor == pcibridge_vendors[tmp]) { + pcipriv->ndis_adapter.pcibridge_vendor = tmp; + RT_TRACE(rtlpriv, COMP_INIT, DBG_DMESG, + ("Pci Bridge Vendor is found index: %d\n", + tmp)); + break; + } + } + + if (pcipriv->ndis_adapter.pcibridge_vendor != + PCI_BRIDGE_VENDOR_UNKNOWN) { + pcipriv->ndis_adapter.pcibridge_busnum = + bridge_pdev->bus->number; + pcipriv->ndis_adapter.pcibridge_devnum = + PCI_SLOT(bridge_pdev->devfn); + pcipriv->ndis_adapter.pcibridge_funcnum = + PCI_FUNC(bridge_pdev->devfn); + pcipriv->ndis_adapter.pcibridge_pciehdr_offset = + pci_pcie_cap(bridge_pdev); + pcipriv->ndis_adapter.pcicfg_addrport = + (pcipriv->ndis_adapter.pcibridge_busnum << 16) | + (pcipriv->ndis_adapter.pcibridge_devnum << 11) | + (pcipriv->ndis_adapter.pcibridge_funcnum << 8) | (1 << 31); + pcipriv->ndis_adapter.num4bytes = + (pcipriv->ndis_adapter.pcibridge_pciehdr_offset + 0x10) / 4; + + rtl_pci_get_linkcontrol_field(hw); + + if (pcipriv->ndis_adapter.pcibridge_vendor == + PCI_BRIDGE_VENDOR_AMD) { + pcipriv->ndis_adapter.amd_l1_patch = + rtl_pci_get_amd_l1_patch(hw); + } + } + + RT_TRACE(rtlpriv, COMP_INIT, DBG_DMESG, + ("pcidev busnumber:devnumber:funcnumber:" + "vendor:link_ctl %d:%d:%d:%x:%x\n", + pcipriv->ndis_adapter.busnumber, + pcipriv->ndis_adapter.devnumber, + pcipriv->ndis_adapter.funcnumber, + pdev->vendor, pcipriv->ndis_adapter.linkctrl_reg)); + + RT_TRACE(rtlpriv, COMP_INIT, DBG_DMESG, + ("pci_bridge busnumber:devnumber:funcnumber:vendor:" + "pcie_cap:link_ctl_reg:amd %d:%d:%d:%x:%x:%x:%x\n", + pcipriv->ndis_adapter.pcibridge_busnum, + pcipriv->ndis_adapter.pcibridge_devnum, + pcipriv->ndis_adapter.pcibridge_funcnum, + pcibridge_vendors[pcipriv->ndis_adapter.pcibridge_vendor], + pcipriv->ndis_adapter.pcibridge_pciehdr_offset, + pcipriv->ndis_adapter.pcibridge_linkctrlreg, + pcipriv->ndis_adapter.amd_l1_patch)); + + rtl_pci_parse_configuration(pdev, hw); + + return true; +} + +int __devinit rtl_pci_probe(struct pci_dev *pdev, + const struct pci_device_id *id) +{ + struct ieee80211_hw *hw = NULL; + + struct rtl_priv *rtlpriv = NULL; + struct rtl_pci_priv *pcipriv = NULL; + struct rtl_pci *rtlpci; + unsigned long pmem_start, pmem_len, pmem_flags; + int err; + + err = pci_enable_device(pdev); + if (err) { + RT_ASSERT(false, + ("%s : Cannot enable new PCI device\n", + pci_name(pdev))); + return err; + } + + if (!pci_set_dma_mask(pdev, DMA_BIT_MASK(32))) { + if (pci_set_consistent_dma_mask(pdev, DMA_BIT_MASK(32))) { + RT_ASSERT(false, ("Unable to obtain 32bit DMA " + "for consistent allocations\n")); + pci_disable_device(pdev); + return -ENOMEM; + } + } + + pci_set_master(pdev); + + hw = ieee80211_alloc_hw(sizeof(struct rtl_pci_priv) + + sizeof(struct rtl_priv), &rtl_ops); + if (!hw) { + RT_ASSERT(false, + ("%s : ieee80211 alloc failed\n", pci_name(pdev))); + err = -ENOMEM; + goto fail1; + } + + SET_IEEE80211_DEV(hw, &pdev->dev); + pci_set_drvdata(pdev, hw); + + rtlpriv = hw->priv; + pcipriv = (void *)rtlpriv->priv; + pcipriv->dev.pdev = pdev; + + /* + *init dbgp flags before all + *other functions, because we will + *use it in other funtions like + *RT_TRACE/RT_PRINT/RTL_PRINT_DATA + *you can not use these macro + *before this + */ + rtl_dbgp_flag_init(hw); + + /* MEM map */ + err = pci_request_regions(pdev, KBUILD_MODNAME); + if (err) { + RT_ASSERT(false, ("Can't obtain PCI resources\n")); + return err; + } + + pmem_start = pci_resource_start(pdev, 2); + pmem_len = pci_resource_len(pdev, 2); + pmem_flags = pci_resource_flags(pdev, 2); + + /*shared mem start */ + rtlpriv->io.pci_mem_start = + (unsigned long)pci_iomap(pdev, 2, pmem_len); + if (rtlpriv->io.pci_mem_start == 0) { + RT_ASSERT(false, ("Can't map PCI mem\n")); + goto fail2; + } + + RT_TRACE(rtlpriv, COMP_INIT, DBG_DMESG, + ("mem mapped space: start: 0x%08lx len:%08lx " + "flags:%08lx, after map:0x%08lx\n", + pmem_start, pmem_len, pmem_flags, + rtlpriv->io.pci_mem_start)); + + /* Disable Clk Request */ + pci_write_config_byte(pdev, 0x81, 0); + /* leave D3 mode */ + pci_write_config_byte(pdev, 0x44, 0); + pci_write_config_byte(pdev, 0x04, 0x06); + pci_write_config_byte(pdev, 0x04, 0x07); + + /* init cfg & intf_ops */ + rtlpriv->rtlhal.interface = INTF_PCI; + rtlpriv->cfg = (struct rtl_hal_cfg *)(id->driver_data); + rtlpriv->intf_ops = &rtl_pci_ops; + + /* find adapter */ + _rtl_pci_find_adapter(pdev, hw); + + /* Init IO handler */ + _rtl_pci_io_handler_init(&pdev->dev, hw); + + /*like read eeprom and so on */ + rtlpriv->cfg->ops->read_eeprom_info(hw); + + if (rtlpriv->cfg->ops->init_sw_vars(hw)) { + RT_TRACE(rtlpriv, COMP_ERR, DBG_EMERG, + ("Can't init_sw_vars.\n")); + goto fail3; + } + + rtlpriv->cfg->ops->init_sw_leds(hw); + + /*aspm */ + rtl_pci_init_aspm(hw); + + /* Init mac80211 sw */ + err = rtl_init_core(hw); + if (err) { + RT_TRACE(rtlpriv, COMP_ERR, DBG_EMERG, + ("Can't allocate sw for mac80211.\n")); + goto fail3; + } + + /* Init PCI sw */ + err = !rtl_pci_init(hw, pdev); + if (err) { + RT_TRACE(rtlpriv, COMP_ERR, DBG_EMERG, + ("Failed to init PCI.\n")); + goto fail3; + } + + err = ieee80211_register_hw(hw); + if (err) { + RT_TRACE(rtlpriv, COMP_ERR, DBG_EMERG, + ("Can't register mac80211 hw.\n")); + goto fail3; + } else { + rtlpriv->mac80211.mac80211_registered = 1; + } + + err = sysfs_create_group(&pdev->dev.kobj, &rtl_attribute_group); + if (err) { + RT_TRACE(rtlpriv, COMP_ERR, DBG_EMERG, + ("failed to create sysfs device attributes\n")); + goto fail3; + } + + /*init rfkill */ + rtl_init_rfkill(hw); + + rtlpci = rtl_pcidev(pcipriv); + err = request_irq(rtlpci->pdev->irq, &_rtl_pci_interrupt, + IRQF_SHARED, KBUILD_MODNAME, hw); + if (err) { + RT_TRACE(rtlpriv, COMP_INIT, DBG_DMESG, + ("%s: failed to register IRQ handler\n", + wiphy_name(hw->wiphy))); + goto fail3; + } else { + rtlpci->irq_alloc = 1; + } + + set_bit(RTL_STATUS_INTERFACE_START, &rtlpriv->status); + return 0; + +fail3: + pci_set_drvdata(pdev, NULL); + rtl_deinit_core(hw); + _rtl_pci_io_handler_release(hw); + ieee80211_free_hw(hw); + + if (rtlpriv->io.pci_mem_start != 0) + pci_iounmap(pdev, (void *)rtlpriv->io.pci_mem_start); + +fail2: + pci_release_regions(pdev); + +fail1: + + pci_disable_device(pdev); + + return -ENODEV; + +} +EXPORT_SYMBOL(rtl_pci_probe); + +void rtl_pci_disconnect(struct pci_dev *pdev) +{ + struct ieee80211_hw *hw = pci_get_drvdata(pdev); + struct rtl_pci_priv *pcipriv = rtl_pcipriv(hw); + struct rtl_priv *rtlpriv = rtl_priv(hw); + struct rtl_pci *rtlpci = rtl_pcidev(pcipriv); + struct rtl_mac *rtlmac = rtl_mac(rtlpriv); + + clear_bit(RTL_STATUS_INTERFACE_START, &rtlpriv->status); + + sysfs_remove_group(&pdev->dev.kobj, &rtl_attribute_group); + + /*ieee80211_unregister_hw will call ops_stop */ + if (rtlmac->mac80211_registered == 1) { + ieee80211_unregister_hw(hw); + rtlmac->mac80211_registered = 0; + } else { + rtl_deinit_deferred_work(hw); + rtlpriv->intf_ops->adapter_stop(hw); + } + + /*deinit rfkill */ + rtl_deinit_rfkill(hw); + + rtl_pci_deinit(hw); + rtl_deinit_core(hw); + rtlpriv->cfg->ops->deinit_sw_leds(hw); + _rtl_pci_io_handler_release(hw); + rtlpriv->cfg->ops->deinit_sw_vars(hw); + + if (rtlpci->irq_alloc) { + free_irq(rtlpci->pdev->irq, hw); + rtlpci->irq_alloc = 0; + } + + if (rtlpriv->io.pci_mem_start != 0) { + pci_iounmap(pdev, (void *)rtlpriv->io.pci_mem_start); + pci_release_regions(pdev); + } + + pci_disable_device(pdev); + pci_set_drvdata(pdev, NULL); + + ieee80211_free_hw(hw); +} +EXPORT_SYMBOL(rtl_pci_disconnect); + +/*************************************** +kernel pci power state define: +PCI_D0 ((pci_power_t __force) 0) +PCI_D1 ((pci_power_t __force) 1) +PCI_D2 ((pci_power_t __force) 2) +PCI_D3hot ((pci_power_t __force) 3) +PCI_D3cold ((pci_power_t __force) 4) +PCI_UNKNOWN ((pci_power_t __force) 5) + +This function is called when system +goes into suspend state mac80211 will +call rtl_mac_stop() from the mac80211 +suspend function first, So there is +no need to call hw_disable here. +****************************************/ +int rtl_pci_suspend(struct pci_dev *pdev, pm_message_t state) +{ + pci_save_state(pdev); + pci_disable_device(pdev); + pci_set_power_state(pdev, PCI_D3hot); + + return 0; +} +EXPORT_SYMBOL(rtl_pci_suspend); + +int rtl_pci_resume(struct pci_dev *pdev) +{ + int ret; + + pci_set_power_state(pdev, PCI_D0); + ret = pci_enable_device(pdev); + if (ret) { + RT_ASSERT(false, ("ERR: <======\n")); + return ret; + } + + pci_restore_state(pdev); + + return 0; +} +EXPORT_SYMBOL(rtl_pci_resume); + +struct rtl_intf_ops rtl_pci_ops = { + .adapter_start = rtl_pci_start, + .adapter_stop = rtl_pci_stop, + .adapter_tx = rtl_pci_tx, + .reset_trx_ring = rtl_pci_reset_trx_ring, + + .disable_aspm = rtl_pci_disable_aspm, + .enable_aspm = rtl_pci_enable_aspm, +}; |