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authorLarry Finger <Larry.Finger@lwfinger.net>2015-09-07 15:59:16 -0500
committerKalle Valo <kvalo@codeaurora.org>2015-10-14 13:33:10 +0300
commitf1d2b4d338bf090296f67830025228872fd52513 (patch)
treea740cec207f1174685c751a697045828b7fdd7b6 /drivers/net/wireless/rtlwifi/pci.c
parent6623c60dc28ee966cd85c6f12aa2fc3c952d0179 (diff)
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rtlwifi: rtl818x: Move drivers into new realtek directory
Now that a new mac80211-based driver for Realtek devices has been submitted, it is time to reorganize the directories. Rather than having directories rtlwifi and rtl818x be in drivers/net/wireless/, they will now be in drivers/net/wireless/realtek/. This change simplifies the directory structure, but does not result in any configuration changes that are visable to the user. Signed-off-by: Larry Finger <Larry.Finger@lwfinger.net> Signed-off-by: Kalle Valo <kvalo@codeaurora.org>
Diffstat (limited to 'drivers/net/wireless/rtlwifi/pci.c')
-rw-r--r--drivers/net/wireless/rtlwifi/pci.c2478
1 files changed, 0 insertions, 2478 deletions
diff --git a/drivers/net/wireless/rtlwifi/pci.c b/drivers/net/wireless/rtlwifi/pci.c
deleted file mode 100644
index f46c9d7f6528..000000000000
--- a/drivers/net/wireless/rtlwifi/pci.c
+++ /dev/null
@@ -1,2478 +0,0 @@
-/******************************************************************************
- *
- * Copyright(c) 2009-2012 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 "wifi.h"
-#include "core.h"
-#include "pci.h"
-#include "base.h"
-#include "ps.h"
-#include "efuse.h"
-#include <linux/interrupt.h>
-#include <linux/export.h>
-#include <linux/kmemleak.h>
-#include <linux/module.h>
-
-MODULE_AUTHOR("lizhaoming <chaoming_li@realsil.com.cn>");
-MODULE_AUTHOR("Realtek WlanFAE <wlanfae@realtek.com>");
-MODULE_AUTHOR("Larry Finger <Larry.FInger@lwfinger.net>");
-MODULE_LICENSE("GPL");
-MODULE_DESCRIPTION("PCI basic driver for rtlwifi");
-
-static const u16 pcibridge_vendors[PCI_BRIDGE_VENDOR_MAX] = {
- INTEL_VENDOR_ID,
- ATI_VENDOR_ID,
- AMD_VENDOR_ID,
- SIS_VENDOR_ID
-};
-
-static const u8 ac_to_hwq[] = {
- VO_QUEUE,
- VI_QUEUE,
- BE_QUEUE,
- BK_QUEUE
-};
-
-static u8 _rtl_mac_to_hwqueue(struct ieee80211_hw *hw,
- struct sk_buff *skb)
-{
- struct rtl_hal *rtlhal = rtl_hal(rtl_priv(hw));
- __le16 fc = rtl_get_fc(skb);
- u8 queue_index = skb_get_queue_mapping(skb);
-
- if (unlikely(ieee80211_is_beacon(fc)))
- return BEACON_QUEUE;
- if (ieee80211_is_mgmt(fc) || ieee80211_is_ctl(fc))
- return MGNT_QUEUE;
- if (rtlhal->hw_type == HARDWARE_TYPE_RTL8192SE)
- if (ieee80211_is_nullfunc(fc))
- return HIGH_QUEUE;
-
- return ac_to_hwq[queue_index];
-}
-
-/* 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;
- u8 init_aspm;
-
- ppsc->reg_rfps_level = 0;
- ppsc->support_aspm = false;
-
- /*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 support_aspm = false;
- ppsc->support_aspm = support_aspm;
- break;
- }
- case 1:{
- /*Support ASPM. */
- bool support_aspm = true;
- bool support_backdoor = true;
- ppsc->support_aspm = support_aspm;
-
- /*if (priv->oem_id == RT_CID_TOSHIBA &&
- !priv->ndis_adapter.amd_l1_patch)
- support_backdoor = false; */
-
- ppsc->support_backdoor = support_backdoor;
-
- break;
- }
- case 2:
- /*ASPM value set by chipset. */
- if (pcibridge_vendor == PCI_BRIDGE_VENDOR_INTEL) {
- bool support_aspm = true;
- ppsc->support_aspm = support_aspm;
- }
- break;
- default:
- RT_TRACE(rtlpriv, COMP_ERR, DBG_EMERG,
- "switch case not processed\n");
- break;
- }
-
- /* toshiba aspm issue, toshiba will set aspm selfly
- * so we should not set aspm in driver */
- pci_read_config_byte(rtlpci->pdev, 0x80, &init_aspm);
- if (rtlpriv->rtlhal.hw_type == HARDWARE_TYPE_RTL8192SE &&
- init_aspm == 0x43)
- ppsc->support_aspm = false;
-}
-
-static bool _rtl_pci_platform_switch_device_pci_aspm(
- struct ieee80211_hw *hw,
- u8 value)
-{
- struct rtl_pci *rtlpci = rtl_pcidev(rtl_pcipriv(hw));
- struct rtl_hal *rtlhal = rtl_hal(rtl_priv(hw));
-
- if (rtlhal->hw_type != HARDWARE_TYPE_RTL8192SE)
- value |= 0x40;
-
- pci_write_config_byte(rtlpci->pdev, 0x80, value);
-
- return false;
-}
-
-/*When we set 0x01 to enable clk request. Set 0x0 to disable clk req.*/
-static void _rtl_pci_switch_clk_req(struct ieee80211_hw *hw, u8 value)
-{
- struct rtl_pci *rtlpci = rtl_pcidev(rtl_pcipriv(hw));
- struct rtl_hal *rtlhal = rtl_hal(rtl_priv(hw));
-
- pci_write_config_byte(rtlpci->pdev, 0x81, value);
-
- if (rtlhal->hw_type == HARDWARE_TYPE_RTL8192SE)
- udelay(100);
-}
-
-/*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;
- 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;
- u8 tmp_u1b = 0;
-
- if (!ppsc->support_aspm)
- return;
-
- 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);
- }
-
- /*for promising device will in L0 state after an I/O. */
- 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 */
- pci_write_config_byte(rtlpci->pdev, (num4bytes << 2),
- 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_vendor = pcipriv->ndis_adapter.pcibridge_vendor;
- u8 num4bytes = pcipriv->ndis_adapter.num4bytes;
- u16 aspmlevel;
- u8 u_pcibridge_aspmsetting;
- u8 u_device_aspmsetting;
-
- if (!ppsc->support_aspm)
- return;
-
- if (pcibridge_vendor == PCI_BRIDGE_VENDOR_UNKNOWN) {
- RT_TRACE(rtlpriv, COMP_POWER, DBG_TRACE,
- "PCI(Bridge) UNKNOWN\n");
- return;
- }
-
- /*4 Enable Pci Bridge ASPM */
-
- 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);
-
- pci_write_config_byte(rtlpci->pdev, (num4bytes << 2),
- u_pcibridge_aspmsetting);
-
- RT_TRACE(rtlpriv, COMP_INIT, DBG_LOUD,
- "PlatformEnableASPM(): Write reg[%x] = %x\n",
- (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(100);
-}
-
-static bool rtl_pci_get_amd_l1_patch(struct ieee80211_hw *hw)
-{
- struct rtl_pci *rtlpci = rtl_pcidev(rtl_pcipriv(hw));
-
- bool status = false;
- u8 offset_e0;
- unsigned offset_e4;
-
- pci_write_config_byte(rtlpci->pdev, 0xe0, 0xa0);
-
- pci_read_config_byte(rtlpci->pdev, 0xe0, &offset_e0);
-
- if (offset_e0 == 0xA0) {
- pci_read_config_dword(rtlpci->pdev, 0xe4, &offset_e4);
- if (offset_e4 & BIT(23))
- status = true;
- }
-
- return status;
-}
-
-static bool rtl_pci_check_buddy_priv(struct ieee80211_hw *hw,
- struct rtl_priv **buddy_priv)
-{
- struct rtl_priv *rtlpriv = rtl_priv(hw);
- struct rtl_pci_priv *pcipriv = rtl_pcipriv(hw);
- bool find_buddy_priv = false;
- struct rtl_priv *tpriv = NULL;
- struct rtl_pci_priv *tpcipriv = NULL;
-
- if (!list_empty(&rtlpriv->glb_var->glb_priv_list)) {
- list_for_each_entry(tpriv, &rtlpriv->glb_var->glb_priv_list,
- list) {
- if (tpriv) {
- tpcipriv = (struct rtl_pci_priv *)tpriv->priv;
- RT_TRACE(rtlpriv, COMP_INIT, DBG_LOUD,
- "pcipriv->ndis_adapter.funcnumber %x\n",
- pcipriv->ndis_adapter.funcnumber);
- RT_TRACE(rtlpriv, COMP_INIT, DBG_LOUD,
- "tpcipriv->ndis_adapter.funcnumber %x\n",
- tpcipriv->ndis_adapter.funcnumber);
-
- if ((pcipriv->ndis_adapter.busnumber ==
- tpcipriv->ndis_adapter.busnumber) &&
- (pcipriv->ndis_adapter.devnumber ==
- tpcipriv->ndis_adapter.devnumber) &&
- (pcipriv->ndis_adapter.funcnumber !=
- tpcipriv->ndis_adapter.funcnumber)) {
- find_buddy_priv = true;
- break;
- }
- }
- }
- }
-
- RT_TRACE(rtlpriv, COMP_INIT, DBG_LOUD,
- "find_buddy_priv %d\n", find_buddy_priv);
-
- if (find_buddy_priv)
- *buddy_priv = tpriv;
-
- return find_buddy_priv;
-}
-
-static void rtl_pci_get_linkcontrol_field(struct ieee80211_hw *hw)
-{
- struct rtl_pci_priv *pcipriv = rtl_pcipriv(hw);
- struct rtl_pci *rtlpci = rtl_pcidev(pcipriv);
- u8 capabilityoffset = pcipriv->ndis_adapter.pcibridge_pciehdr_offset;
- u8 linkctrl_reg;
- u8 num4bbytes;
-
- num4bbytes = (capabilityoffset + 0x10) / 4;
-
- /*Read Link Control Register */
- pci_read_config_byte(rtlpci->pdev, (num4bbytes << 2), &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;
- u16 linkctrl_reg;
-
- /*Link Control Register */
- pcie_capability_read_word(pdev, PCI_EXP_LNKCTL, &linkctrl_reg);
- pcipriv->ndis_adapter.linkctrl_reg = (u8)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_init_aspm(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_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 bool _rtl_update_earlymode_info(struct ieee80211_hw *hw,
- struct sk_buff *skb, struct rtl_tcb_desc *tcb_desc, u8 tid)
-{
- struct rtl_priv *rtlpriv = rtl_priv(hw);
- struct ieee80211_tx_info *info = IEEE80211_SKB_CB(skb);
- struct rtl_hal *rtlhal = rtl_hal(rtl_priv(hw));
- struct sk_buff *next_skb;
- u8 additionlen = FCS_LEN;
-
- /* here open is 4, wep/tkip is 8, aes is 12*/
- if (info->control.hw_key)
- additionlen += info->control.hw_key->icv_len;
-
- /* The most skb num is 6 */
- tcb_desc->empkt_num = 0;
- spin_lock_bh(&rtlpriv->locks.waitq_lock);
- skb_queue_walk(&rtlpriv->mac80211.skb_waitq[tid], next_skb) {
- struct ieee80211_tx_info *next_info;
-
- next_info = IEEE80211_SKB_CB(next_skb);
- if (next_info->flags & IEEE80211_TX_CTL_AMPDU) {
- tcb_desc->empkt_len[tcb_desc->empkt_num] =
- next_skb->len + additionlen;
- tcb_desc->empkt_num++;
- } else {
- break;
- }
-
- if (skb_queue_is_last(&rtlpriv->mac80211.skb_waitq[tid],
- next_skb))
- break;
-
- if (tcb_desc->empkt_num >= rtlhal->max_earlymode_num)
- break;
- }
- spin_unlock_bh(&rtlpriv->locks.waitq_lock);
-
- return true;
-}
-
-/* just for early mode now */
-static void _rtl_pci_tx_chk_waitq(struct ieee80211_hw *hw)
-{
- 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 sk_buff *skb = NULL;
- struct ieee80211_tx_info *info = NULL;
- struct rtl_hal *rtlhal = rtl_hal(rtl_priv(hw));
- int tid;
-
- if (!rtlpriv->rtlhal.earlymode_enable)
- return;
-
- if (rtlpriv->dm.supp_phymode_switch &&
- (rtlpriv->easy_concurrent_ctl.switch_in_process ||
- (rtlpriv->buddy_priv &&
- rtlpriv->buddy_priv->easy_concurrent_ctl.switch_in_process)))
- return;
- /* we juse use em for BE/BK/VI/VO */
- for (tid = 7; tid >= 0; tid--) {
- u8 hw_queue = ac_to_hwq[rtl_tid_to_ac(tid)];
- struct rtl8192_tx_ring *ring = &rtlpci->tx_ring[hw_queue];
- while (!mac->act_scanning &&
- rtlpriv->psc.rfpwr_state == ERFON) {
- struct rtl_tcb_desc tcb_desc;
- memset(&tcb_desc, 0, sizeof(struct rtl_tcb_desc));
-
- spin_lock_bh(&rtlpriv->locks.waitq_lock);
- if (!skb_queue_empty(&mac->skb_waitq[tid]) &&
- (ring->entries - skb_queue_len(&ring->queue) >
- rtlhal->max_earlymode_num)) {
- skb = skb_dequeue(&mac->skb_waitq[tid]);
- } else {
- spin_unlock_bh(&rtlpriv->locks.waitq_lock);
- break;
- }
- spin_unlock_bh(&rtlpriv->locks.waitq_lock);
-
- /* Some macaddr can't do early mode. like
- * multicast/broadcast/no_qos data */
- info = IEEE80211_SKB_CB(skb);
- if (info->flags & IEEE80211_TX_CTL_AMPDU)
- _rtl_update_earlymode_info(hw, skb,
- &tcb_desc, tid);
-
- rtlpriv->intf_ops->adapter_tx(hw, NULL, skb, &tcb_desc);
- }
- }
-}
-
-
-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 sk_buff *skb;
- struct ieee80211_tx_info *info;
- __le16 fc;
- u8 tid;
- u8 *entry;
-
- if (rtlpriv->use_new_trx_flow)
- entry = (u8 *)(&ring->buffer_desc[ring->idx]);
- else
- entry = (u8 *)(&ring->desc[ring->idx]);
-
- if (rtlpriv->cfg->ops->get_available_desc &&
- rtlpriv->cfg->ops->get_available_desc(hw, prio) <= 1) {
- RT_TRACE(rtlpriv, (COMP_INTR | COMP_SEND), DBG_DMESG,
- "no available desc!\n");
- return;
- }
-
- if (!rtlpriv->cfg->ops->is_tx_desc_closed(hw, prio, ring->idx))
- return;
- ring->idx = (ring->idx + 1) % ring->entries;
-
- skb = __skb_dequeue(&ring->queue);
- pci_unmap_single(rtlpci->pdev,
- rtlpriv->cfg->ops->
- get_desc((u8 *)entry, true,
- HW_DESC_TXBUFF_ADDR),
- skb->len, PCI_DMA_TODEVICE);
-
- /* remove early mode header */
- if (rtlpriv->rtlhal.earlymode_enable)
- skb_pull(skb, EM_HDR_LEN);
-
- 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));
-
- if (prio == TXCMD_QUEUE) {
- dev_kfree_skb(skb);
- goto tx_status_ok;
-
- }
-
- /* for sw LPS, just after NULL skb send out, we can
- * sure AP knows we are sleeping, we should not let
- * rf sleep
- */
- fc = rtl_get_fc(skb);
- if (ieee80211_is_nullfunc(fc)) {
- if (ieee80211_has_pm(fc)) {
- rtlpriv->mac80211.offchan_delay = true;
- rtlpriv->psc.state_inap = true;
- } else {
- rtlpriv->psc.state_inap = false;
- }
- }
- if (ieee80211_is_action(fc)) {
- struct ieee80211_mgmt *action_frame =
- (struct ieee80211_mgmt *)skb->data;
- if (action_frame->u.action.u.ht_smps.action ==
- WLAN_HT_ACTION_SMPS) {
- dev_kfree_skb(skb);
- goto tx_status_ok;
- }
- }
-
- /* update tid tx pkt num */
- tid = rtl_get_tid(skb);
- if (tid <= 7)
- rtlpriv->link_info.tidtx_inperiod[tid]++;
-
- 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)) <= 4) {
-
- RT_TRACE(rtlpriv, COMP_ERR, DBG_DMESG,
- "more desc left, wake skb_queue@%d, ring->idx = %d, skb_queue_len = 0x%x\n",
- prio, ring->idx,
- skb_queue_len(&ring->queue));
-
- ieee80211_wake_queue(hw,
- skb_get_queue_mapping
- (skb));
- }
-tx_status_ok:
- skb = NULL;
- }
-
- if (((rtlpriv->link_info.num_rx_inperiod +
- rtlpriv->link_info.num_tx_inperiod) > 8) ||
- (rtlpriv->link_info.num_rx_inperiod > 2)) {
- rtlpriv->enter_ps = false;
- schedule_work(&rtlpriv->works.lps_change_work);
- }
-}
-
-static int _rtl_pci_init_one_rxdesc(struct ieee80211_hw *hw,
- struct sk_buff *new_skb, u8 *entry,
- int rxring_idx, int desc_idx)
-{
- struct rtl_priv *rtlpriv = rtl_priv(hw);
- struct rtl_pci *rtlpci = rtl_pcidev(rtl_pcipriv(hw));
- u32 bufferaddress;
- u8 tmp_one = 1;
- struct sk_buff *skb;
-
- if (likely(new_skb)) {
- skb = new_skb;
- goto remap;
- }
- skb = dev_alloc_skb(rtlpci->rxbuffersize);
- if (!skb)
- return 0;
-
-remap:
- /* 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 = *((dma_addr_t *)skb->cb);
- if (pci_dma_mapping_error(rtlpci->pdev, bufferaddress))
- return 0;
- rtlpci->rx_ring[rxring_idx].rx_buf[desc_idx] = skb;
- if (rtlpriv->use_new_trx_flow) {
- rtlpriv->cfg->ops->set_desc(hw, (u8 *)entry, false,
- HW_DESC_RX_PREPARE,
- (u8 *)&bufferaddress);
- } else {
- rtlpriv->cfg->ops->set_desc(hw, (u8 *)entry, false,
- HW_DESC_RXBUFF_ADDR,
- (u8 *)&bufferaddress);
- rtlpriv->cfg->ops->set_desc(hw, (u8 *)entry, false,
- HW_DESC_RXPKT_LEN,
- (u8 *)&rtlpci->rxbuffersize);
- rtlpriv->cfg->ops->set_desc(hw, (u8 *)entry, false,
- HW_DESC_RXOWN,
- (u8 *)&tmp_one);
- }
- return 1;
-}
-
-/* inorder to receive 8K AMSDU we have set skb to
- * 9100bytes in init rx ring, but if this packet is
- * not a AMSDU, this large packet will be sent to
- * TCP/IP directly, this cause big packet ping fail
- * like: "ping -s 65507", so here we will realloc skb
- * based on the true size of packet, Mac80211
- * Probably will do it better, but does not yet.
- *
- * Some platform will fail when alloc skb sometimes.
- * in this condition, we will send the old skb to
- * mac80211 directly, this will not cause any other
- * issues, but only this packet will be lost by TCP/IP
- */
-static void _rtl_pci_rx_to_mac80211(struct ieee80211_hw *hw,
- struct sk_buff *skb,
- struct ieee80211_rx_status rx_status)
-{
- 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);
- if (likely(uskb)) {
- 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 {
- ieee80211_rx_irqsafe(hw, skb);
- }
- }
-}
-
-/*hsisr interrupt handler*/
-static void _rtl_pci_hs_interrupt(struct ieee80211_hw *hw)
-{
- struct rtl_priv *rtlpriv = rtl_priv(hw);
- struct rtl_pci *rtlpci = rtl_pcidev(rtl_pcipriv(hw));
-
- rtl_write_byte(rtlpriv, rtlpriv->cfg->maps[MAC_HSISR],
- rtl_read_byte(rtlpriv, rtlpriv->cfg->maps[MAC_HSISR]) |
- rtlpci->sys_irq_mask);
-}
-
-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 rxring_idx = RTL_PCI_RX_MPDU_QUEUE;
- struct ieee80211_rx_status rx_status = { 0 };
- unsigned int count = rtlpci->rxringcount;
- u8 own;
- u8 tmp_one;
- bool unicast = false;
- u8 hw_queue = 0;
- unsigned int rx_remained_cnt;
- struct rtl_stats stats = {
- .signal = 0,
- .rate = 0,
- };
-
- /*RX NORMAL PKT */
- while (count--) {
- struct ieee80211_hdr *hdr;
- __le16 fc;
- u16 len;
- /*rx buffer descriptor */
- struct rtl_rx_buffer_desc *buffer_desc = NULL;
- /*if use new trx flow, it means wifi info */
- struct rtl_rx_desc *pdesc = NULL;
- /*rx pkt */
- struct sk_buff *skb = rtlpci->rx_ring[rxring_idx].rx_buf[
- rtlpci->rx_ring[rxring_idx].idx];
- struct sk_buff *new_skb;
-
- if (rtlpriv->use_new_trx_flow) {
- rx_remained_cnt =
- rtlpriv->cfg->ops->rx_desc_buff_remained_cnt(hw,
- hw_queue);
- if (rx_remained_cnt == 0)
- return;
-
- } else { /* rx descriptor */
- pdesc = &rtlpci->rx_ring[rxring_idx].desc[
- rtlpci->rx_ring[rxring_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;
- }
-
- /* Reaching this point means: data is filled already
- * AAAAAAttention !!!
- * We can NOT access 'skb' before 'pci_unmap_single'
- */
- pci_unmap_single(rtlpci->pdev, *((dma_addr_t *)skb->cb),
- rtlpci->rxbuffersize, PCI_DMA_FROMDEVICE);
-
- /* get a new skb - if fail, old one will be reused */
- new_skb = dev_alloc_skb(rtlpci->rxbuffersize);
- if (unlikely(!new_skb))
- goto no_new;
- if (rtlpriv->use_new_trx_flow) {
- buffer_desc =
- &rtlpci->rx_ring[rxring_idx].buffer_desc
- [rtlpci->rx_ring[rxring_idx].idx];
- /*means rx wifi info*/
- pdesc = (struct rtl_rx_desc *)skb->data;
- }
- memset(&rx_status , 0 , sizeof(rx_status));
- rtlpriv->cfg->ops->query_rx_desc(hw, &stats,
- &rx_status, (u8 *)pdesc, skb);
-
- if (rtlpriv->use_new_trx_flow)
- rtlpriv->cfg->ops->rx_check_dma_ok(hw,
- (u8 *)buffer_desc,
- hw_queue);
-
- len = rtlpriv->cfg->ops->get_desc((u8 *)pdesc, false,
- HW_DESC_RXPKT_LEN);
-
- if (skb->end - skb->tail > len) {
- skb_put(skb, len);
- if (rtlpriv->use_new_trx_flow)
- skb_reserve(skb, stats.rx_drvinfo_size +
- stats.rx_bufshift + 24);
- else
- skb_reserve(skb, stats.rx_drvinfo_size +
- stats.rx_bufshift);
- } else {
- RT_TRACE(rtlpriv, COMP_ERR, DBG_WARNING,
- "skb->end - skb->tail = %d, len is %d\n",
- skb->end - skb->tail, len);
- dev_kfree_skb_any(skb);
- goto new_trx_end;
- }
- /* handle command packet here */
- if (rtlpriv->cfg->ops->rx_command_packet &&
- rtlpriv->cfg->ops->rx_command_packet(hw, stats, skb)) {
- dev_kfree_skb_any(skb);
- goto new_trx_end;
- }
-
- /*
- * NOTICE This can not be use for mac80211,
- * this is done in mac80211 code,
- * if done here sec DHCP will fail
- * skb_trim(skb, skb->len - 4);
- */
-
- hdr = rtl_get_hdr(skb);
- fc = rtl_get_fc(skb);
-
- if (!stats.crc && !stats.hwerror) {
- 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, true);
-
- if (ieee80211_is_data(fc)) {
- rtlpriv->cfg->ops->led_control(hw, LED_CTL_RX);
- if (unicast)
- rtlpriv->link_info.num_rx_inperiod++;
- }
- /* static bcn for roaming */
- rtl_beacon_statistic(hw, skb);
- rtl_p2p_info(hw, (void *)skb->data, skb->len);
- /* for sw lps */
- rtl_swlps_beacon(hw, (void *)skb->data, skb->len);
- rtl_recognize_peer(hw, (void *)skb->data, skb->len);
- if ((rtlpriv->mac80211.opmode == NL80211_IFTYPE_AP) &&
- (rtlpriv->rtlhal.current_bandtype ==
- BAND_ON_2_4G) &&
- (ieee80211_is_beacon(fc) ||
- ieee80211_is_probe_resp(fc))) {
- dev_kfree_skb_any(skb);
- } else {
- _rtl_pci_rx_to_mac80211(hw, skb, rx_status);
- }
- } else {
- dev_kfree_skb_any(skb);
- }
-new_trx_end:
- if (rtlpriv->use_new_trx_flow) {
- rtlpci->rx_ring[hw_queue].next_rx_rp += 1;
- rtlpci->rx_ring[hw_queue].next_rx_rp %=
- RTL_PCI_MAX_RX_COUNT;
-
- rx_remained_cnt--;
- rtl_write_word(rtlpriv, 0x3B4,
- rtlpci->rx_ring[hw_queue].next_rx_rp);
- }
- if (((rtlpriv->link_info.num_rx_inperiod +
- rtlpriv->link_info.num_tx_inperiod) > 8) ||
- (rtlpriv->link_info.num_rx_inperiod > 2)) {
- rtlpriv->enter_ps = false;
- schedule_work(&rtlpriv->works.lps_change_work);
- }
- skb = new_skb;
-no_new:
- if (rtlpriv->use_new_trx_flow) {
- _rtl_pci_init_one_rxdesc(hw, skb, (u8 *)buffer_desc,
- rxring_idx,
- rtlpci->rx_ring[rxring_idx].idx);
- } else {
- _rtl_pci_init_one_rxdesc(hw, skb, (u8 *)pdesc,
- rxring_idx,
- rtlpci->rx_ring[rxring_idx].idx);
- if (rtlpci->rx_ring[rxring_idx].idx ==
- rtlpci->rxringcount - 1)
- rtlpriv->cfg->ops->set_desc(hw, (u8 *)pdesc,
- false,
- HW_DESC_RXERO,
- (u8 *)&tmp_one);
- }
- rtlpci->rx_ring[rxring_idx].idx =
- (rtlpci->rx_ring[rxring_idx].idx + 1) %
- rtlpci->rxringcount;
- }
-}
-
-static irqreturn_t _rtl_pci_interrupt(int irq, void *dev_id)
-{
- struct ieee80211_hw *hw = dev_id;
- struct rtl_pci *rtlpci = rtl_pcidev(rtl_pcipriv(hw));
- struct rtl_priv *rtlpriv = rtl_priv(hw);
- struct rtl_hal *rtlhal = rtl_hal(rtl_priv(hw));
- unsigned long flags;
- u32 inta = 0;
- u32 intb = 0;
- irqreturn_t ret = IRQ_HANDLED;
-
- if (rtlpci->irq_enabled == 0)
- return ret;
-
- spin_lock_irqsave(&rtlpriv->locks.irq_th_lock , flags);
- rtlpriv->cfg->ops->disable_interrupt(hw);
-
- /*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);
- }
-
- /*<2> Tx related */
- if (unlikely(intb & 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);
- }
-
- if (rtlhal->hw_type == HARDWARE_TYPE_RTL8192SE) {
- if (inta & rtlpriv->cfg->maps[RTL_IMR_COMDOK]) {
- rtlpriv->link_info.num_tx_inperiod++;
-
- RT_TRACE(rtlpriv, COMP_INTR, DBG_TRACE,
- "CMD TX OK interrupt!\n");
- _rtl_pci_tx_isr(hw, TXCMD_QUEUE);
- }
- }
-
- /*<3> Rx related */
- if (inta & rtlpriv->cfg->maps[RTL_IMR_ROK]) {
- RT_TRACE(rtlpriv, COMP_INTR, DBG_TRACE, "Rx ok interru