From b0302aba812bcc39291cdab9ad7e37008f352a91 Mon Sep 17 00:00:00 2001 From: Larry Finger Date: Mon, 30 Jan 2012 09:54:49 -0600 Subject: [PATCH] rtlwifi: Convert to asynchronous firmware load This patch addresses a kernel bugzilla report and two recent mail threads. The kernel bugzilla report is https://bugzilla.kernel.org/show_bug.cgi?id=42632, which reports a udev timeout on boot. The first mail thread, which was on LKML (http://lkml.indiana.edu/hypermail/ linux/kernel/1112.3/00965.html) was for a WARNING that occurs after a suspend/resume cycle for rtl8192cu. The scond mail thread (http://marc.info/?l=linux-wireless&m=132655490826766&w=2) concerned changes in udev that break drivers that delay while firmware is loaded on modprobe. This patch converts all rtlwifi-based drivers to use the asynchronous firmware loading mechanism. Drivers rtl8192ce, rtl8192cu and rtl8192de share a common callback routine. Driver rtl8192se needs different handling of the firmware, thus it has its own code. Signed-off-by: Larry Finger Cc: Stable Signed-off-by: John W. Linville --- drivers/net/wireless/rtlwifi/base.c | 1 + drivers/net/wireless/rtlwifi/core.c | 46 ++++++++++++- drivers/net/wireless/rtlwifi/core.h | 2 + drivers/net/wireless/rtlwifi/pci.c | 26 +++----- drivers/net/wireless/rtlwifi/pci.h | 1 - drivers/net/wireless/rtlwifi/ps.c | 3 +- .../net/wireless/rtlwifi/rtl8192c/fw_common.c | 10 +-- drivers/net/wireless/rtlwifi/rtl8192ce/hw.c | 6 +- drivers/net/wireless/rtlwifi/rtl8192ce/sw.c | 24 +++---- drivers/net/wireless/rtlwifi/rtl8192cu/hw.c | 35 +++++----- drivers/net/wireless/rtlwifi/rtl8192cu/sw.c | 29 +++------ drivers/net/wireless/rtlwifi/rtl8192de/fw.c | 8 +-- drivers/net/wireless/rtlwifi/rtl8192de/hw.c | 3 - drivers/net/wireless/rtlwifi/rtl8192de/sw.c | 38 +++++------ drivers/net/wireless/rtlwifi/rtl8192se/fw.c | 2 +- drivers/net/wireless/rtlwifi/rtl8192se/hw.c | 16 +++-- drivers/net/wireless/rtlwifi/rtl8192se/led.c | 5 +- drivers/net/wireless/rtlwifi/rtl8192se/sw.c | 65 ++++++++++++++----- drivers/net/wireless/rtlwifi/usb.c | 34 ++++------ drivers/net/wireless/rtlwifi/wifi.h | 4 +- 20 files changed, 194 insertions(+), 164 deletions(-) diff --git a/drivers/net/wireless/rtlwifi/base.c b/drivers/net/wireless/rtlwifi/base.c index 7a95a544a9b1..df5655cc55c0 100644 --- a/drivers/net/wireless/rtlwifi/base.c +++ b/drivers/net/wireless/rtlwifi/base.c @@ -410,6 +410,7 @@ void rtl_init_rfkill(struct ieee80211_hw *hw) wiphy_rfkill_start_polling(hw->wiphy); } +EXPORT_SYMBOL(rtl_init_rfkill); void rtl_deinit_rfkill(struct ieee80211_hw *hw) { diff --git a/drivers/net/wireless/rtlwifi/core.c b/drivers/net/wireless/rtlwifi/core.c index 0ee01ab2e4f6..f231b9180436 100644 --- a/drivers/net/wireless/rtlwifi/core.c +++ b/drivers/net/wireless/rtlwifi/core.c @@ -31,8 +31,50 @@ #include "core.h" #include "cam.h" #include "base.h" +#include "pci.h" #include "ps.h" +#include + +void rtl_fw_cb(const struct firmware *firmware, void *context) +{ + struct ieee80211_hw *hw = context; + struct rtl_priv *rtlpriv = rtl_priv(hw); + int err; + + RT_TRACE(rtlpriv, COMP_ERR, DBG_LOUD, + "Firmware callback routine entered!\n"); + complete(&rtlpriv->firmware_loading_complete); + if (!firmware) { + pr_err("Firmware %s not available\n", rtlpriv->cfg->fw_name); + rtlpriv->max_fw_size = 0; + return; + } + if (firmware->size > rtlpriv->max_fw_size) { + RT_TRACE(rtlpriv, COMP_ERR, DBG_EMERG, + "Firmware is too big!\n"); + release_firmware(firmware); + return; + } + memcpy(rtlpriv->rtlhal.pfirmware, firmware->data, firmware->size); + rtlpriv->rtlhal.fwsize = firmware->size; + release_firmware(firmware); + + err = ieee80211_register_hw(hw); + if (err) { + RT_TRACE(rtlpriv, COMP_ERR, DBG_EMERG, + "Can't register mac80211 hw\n"); + return; + } else { + rtlpriv->mac80211.mac80211_registered = 1; + } + set_bit(RTL_STATUS_INTERFACE_START, &rtlpriv->status); + + /*init rfkill */ + rtl_init_rfkill(hw); +} +EXPORT_SYMBOL(rtl_fw_cb); + /*mutex for start & stop is must here. */ static int rtl_op_start(struct ieee80211_hw *hw) { @@ -254,10 +296,12 @@ static int rtl_op_config(struct ieee80211_hw *hw, u32 changed) * because that will cause nullfunc send by mac80211 * fail, and cause pkt loss, we have tested that 5mA * is worked very well */ - if (!rtlpriv->psc.multi_buffered) + if (!rtlpriv->psc.multi_buffered) { queue_delayed_work(rtlpriv->works.rtl_wq, &rtlpriv->works.ps_work, MSECS(5)); + pr_info("In section\n"); + } } else { rtl_swlps_rf_awake(hw); rtlpriv->psc.sw_ps_enabled = false; diff --git a/drivers/net/wireless/rtlwifi/core.h b/drivers/net/wireless/rtlwifi/core.h index 57569e0e3d47..2fe46a1b4f1f 100644 --- a/drivers/net/wireless/rtlwifi/core.h +++ b/drivers/net/wireless/rtlwifi/core.h @@ -40,4 +40,6 @@ #define RTL_SUPPORTED_CTRL_FILTER 0xFF extern const struct ieee80211_ops rtl_ops; +void rtl_fw_cb(const struct firmware *firmware, void *context); + #endif diff --git a/drivers/net/wireless/rtlwifi/pci.c b/drivers/net/wireless/rtlwifi/pci.c index e4d1dcfe8299..5cb2199435d2 100644 --- a/drivers/net/wireless/rtlwifi/pci.c +++ b/drivers/net/wireless/rtlwifi/pci.c @@ -1565,6 +1565,9 @@ static void rtl_pci_stop(struct ieee80211_hw *hw) rtlpci->driver_is_goingto_unload = true; rtlpriv->cfg->ops->hw_disable(hw); + /* some things are not needed if firmware not available */ + if (!rtlpriv->max_fw_size) + return; rtlpriv->cfg->ops->led_control(hw, LED_CTL_POWER_OFF); spin_lock_irqsave(&rtlpriv->locks.rf_ps_lock, flags); @@ -1779,6 +1782,7 @@ int __devinit rtl_pci_probe(struct pci_dev *pdev, rtlpriv = hw->priv; pcipriv = (void *)rtlpriv->priv; pcipriv->dev.pdev = pdev; + init_completion(&rtlpriv->firmware_loading_complete); /* init cfg & intf_ops */ rtlpriv->rtlhal.interface = INTF_PCI; @@ -1799,7 +1803,7 @@ int __devinit rtl_pci_probe(struct pci_dev *pdev, err = pci_request_regions(pdev, KBUILD_MODNAME); if (err) { RT_ASSERT(false, "Can't obtain PCI resources\n"); - return err; + goto fail2; } pmem_start = pci_resource_start(pdev, rtlpriv->cfg->bar_id); @@ -1862,15 +1866,6 @@ int __devinit rtl_pci_probe(struct pci_dev *pdev, 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, @@ -1878,9 +1873,6 @@ int __devinit rtl_pci_probe(struct pci_dev *pdev, 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); @@ -1889,24 +1881,22 @@ int __devinit rtl_pci_probe(struct pci_dev *pdev, "%s: failed to register IRQ handler\n", wiphy_name(hw->wiphy)); goto fail3; - } else { - rtlpci->irq_alloc = 1; } + 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 __iomem *)rtlpriv->io.pci_mem_start); fail2: pci_release_regions(pdev); + complete(&rtlpriv->firmware_loading_complete); fail1: @@ -1925,6 +1915,8 @@ void rtl_pci_disconnect(struct pci_dev *pdev) struct rtl_pci *rtlpci = rtl_pcidev(pcipriv); struct rtl_mac *rtlmac = rtl_mac(rtlpriv); + /* just in case driver is removed before firmware callback */ + wait_for_completion(&rtlpriv->firmware_loading_complete); clear_bit(RTL_STATUS_INTERFACE_START, &rtlpriv->status); sysfs_remove_group(&pdev->dev.kobj, &rtl_attribute_group); diff --git a/drivers/net/wireless/rtlwifi/pci.h b/drivers/net/wireless/rtlwifi/pci.h index 99d81ede17b8..241448fc9ed5 100644 --- a/drivers/net/wireless/rtlwifi/pci.h +++ b/drivers/net/wireless/rtlwifi/pci.h @@ -239,7 +239,6 @@ int __devinit rtl_pci_probe(struct pci_dev *pdev, void rtl_pci_disconnect(struct pci_dev *pdev); int rtl_pci_suspend(struct device *dev); int rtl_pci_resume(struct device *dev); - static inline u8 pci_read8_sync(struct rtl_priv *rtlpriv, u32 addr) { return readb((u8 __iomem *) rtlpriv->io.pci_mem_start + addr); diff --git a/drivers/net/wireless/rtlwifi/ps.c b/drivers/net/wireless/rtlwifi/ps.c index b151266ef9f6..15f86eaa1cd6 100644 --- a/drivers/net/wireless/rtlwifi/ps.c +++ b/drivers/net/wireless/rtlwifi/ps.c @@ -47,7 +47,8 @@ bool rtl_ps_enable_nic(struct ieee80211_hw *hw) "Driver is already down!\n"); /*<2> Enable Adapter */ - rtlpriv->cfg->ops->hw_init(hw); + if (rtlpriv->cfg->ops->hw_init(hw)) + return 1; RT_CLEAR_PS_LEVEL(ppsc, RT_RF_OFF_LEVL_HALT_NIC); /*<3> Enable Interrupt */ diff --git a/drivers/net/wireless/rtlwifi/rtl8192c/fw_common.c b/drivers/net/wireless/rtlwifi/rtl8192c/fw_common.c index 82bbc8384aca..c20b3c30f62e 100644 --- a/drivers/net/wireless/rtlwifi/rtl8192c/fw_common.c +++ b/drivers/net/wireless/rtlwifi/rtl8192c/fw_common.c @@ -257,10 +257,9 @@ int rtl92c_download_fw(struct ieee80211_hw *hw) u32 fwsize; enum version_8192c version = rtlhal->version; - if (!rtlhal->pfirmware) + if (rtlpriv->max_fw_size == 0 || !rtlhal->pfirmware) return 1; - pr_info("Loading firmware file %s\n", rtlpriv->cfg->fw_name); pfwheader = (struct rtl92c_firmware_header *)rtlhal->pfirmware; pfwdata = (u8 *) rtlhal->pfirmware; fwsize = rtlhal->fwsize; @@ -512,15 +511,8 @@ static void _rtl92c_fill_h2c_command(struct ieee80211_hw *hw, void rtl92c_fill_h2c_cmd(struct ieee80211_hw *hw, u8 element_id, u32 cmd_len, u8 *p_cmdbuffer) { - struct rtl_hal *rtlhal = rtl_hal(rtl_priv(hw)); u32 tmp_cmdbuf[2]; - if (rtlhal->fw_ready == false) { - RT_ASSERT(false, - "return H2C cmd because of Fw download fail!!!\n"); - return; - } - memset(tmp_cmdbuf, 0, 8); memcpy(tmp_cmdbuf, p_cmdbuffer, cmd_len); _rtl92c_fill_h2c_command(hw, element_id, cmd_len, (u8 *)&tmp_cmdbuf); diff --git a/drivers/net/wireless/rtlwifi/rtl8192ce/hw.c b/drivers/net/wireless/rtlwifi/rtl8192ce/hw.c index c5aced459cd0..48c7b5d3fc5b 100644 --- a/drivers/net/wireless/rtlwifi/rtl8192ce/hw.c +++ b/drivers/net/wireless/rtlwifi/rtl8192ce/hw.c @@ -917,10 +917,7 @@ int rtl92ce_hw_init(struct ieee80211_hw *hw) RT_TRACE(rtlpriv, COMP_ERR, DBG_WARNING, "Failed to download FW. Init HW without FW now..\n"); err = 1; - rtlhal->fw_ready = false; return err; - } else { - rtlhal->fw_ready = true; } rtlhal->last_hmeboxnum = 0; @@ -1193,7 +1190,6 @@ static void _rtl92ce_poweroff_adapter(struct ieee80211_hw *hw) { struct rtl_priv *rtlpriv = rtl_priv(hw); struct rtl_pci_priv *rtlpcipriv = rtl_pcipriv(hw); - struct rtl_hal *rtlhal = rtl_hal(rtl_priv(hw)); u8 u1b_tmp; u32 u4b_tmp; @@ -1204,7 +1200,7 @@ static void _rtl92ce_poweroff_adapter(struct ieee80211_hw *hw) rtl_write_byte(rtlpriv, REG_APSD_CTRL, 0x40); rtl_write_byte(rtlpriv, REG_SYS_FUNC_EN, 0xE2); rtl_write_byte(rtlpriv, REG_SYS_FUNC_EN, 0xE0); - if ((rtl_read_byte(rtlpriv, REG_MCUFWDL) & BIT(7)) && rtlhal->fw_ready) + if (rtl_read_byte(rtlpriv, REG_MCUFWDL) & BIT(7)) rtl92c_firmware_selfreset(hw); rtl_write_byte(rtlpriv, REG_SYS_FUNC_EN + 1, 0x51); rtl_write_byte(rtlpriv, REG_MCUFWDL, 0x00); diff --git a/drivers/net/wireless/rtlwifi/rtl8192ce/sw.c b/drivers/net/wireless/rtlwifi/rtl8192ce/sw.c index 460dc925b4e4..2c3b73366cd2 100644 --- a/drivers/net/wireless/rtlwifi/rtl8192ce/sw.c +++ b/drivers/net/wireless/rtlwifi/rtl8192ce/sw.c @@ -91,9 +91,7 @@ int rtl92c_init_sw_vars(struct ieee80211_hw *hw) int err; struct rtl_priv *rtlpriv = rtl_priv(hw); struct rtl_pci *rtlpci = rtl_pcidev(rtl_pcipriv(hw)); - const struct firmware *firmware; struct rtl_hal *rtlhal = rtl_hal(rtl_priv(hw)); - char *fw_name = NULL; rtl8192ce_bt_reg_init(hw); @@ -165,26 +163,20 @@ int rtl92c_init_sw_vars(struct ieee80211_hw *hw) /* request fw */ if (IS_VENDOR_UMC_A_CUT(rtlhal->version) && !IS_92C_SERIAL(rtlhal->version)) - fw_name = "rtlwifi/rtl8192cfwU.bin"; + rtlpriv->cfg->fw_name = "rtlwifi/rtl8192cfwU.bin"; else if (IS_81xxC_VENDOR_UMC_B_CUT(rtlhal->version)) - fw_name = "rtlwifi/rtl8192cfwU_B.bin"; - else - fw_name = rtlpriv->cfg->fw_name; - err = request_firmware(&firmware, fw_name, rtlpriv->io.dev); + rtlpriv->cfg->fw_name = "rtlwifi/rtl8192cfwU_B.bin"; + + rtlpriv->max_fw_size = 0x4000; + pr_info("Using firmware %s\n", rtlpriv->cfg->fw_name); + err = request_firmware_nowait(THIS_MODULE, 1, rtlpriv->cfg->fw_name, + rtlpriv->io.dev, GFP_KERNEL, hw, + rtl_fw_cb); if (err) { RT_TRACE(rtlpriv, COMP_ERR, DBG_EMERG, "Failed to request firmware!\n"); return 1; } - if (firmware->size > 0x4000) { - RT_TRACE(rtlpriv, COMP_ERR, DBG_EMERG, - "Firmware is too big!\n"); - release_firmware(firmware); - return 1; - } - memcpy(rtlpriv->rtlhal.pfirmware, firmware->data, firmware->size); - rtlpriv->rtlhal.fwsize = firmware->size; - release_firmware(firmware); return 0; } diff --git a/drivers/net/wireless/rtlwifi/rtl8192cu/hw.c b/drivers/net/wireless/rtlwifi/rtl8192cu/hw.c index 7f171682d3d6..0c74d4f2eeb4 100644 --- a/drivers/net/wireless/rtlwifi/rtl8192cu/hw.c +++ b/drivers/net/wireless/rtlwifi/rtl8192cu/hw.c @@ -997,10 +997,7 @@ int rtl92cu_hw_init(struct ieee80211_hw *hw) RT_TRACE(rtlpriv, COMP_ERR, DBG_WARNING, "Failed to download FW. Init HW without FW now..\n"); err = 1; - rtlhal->fw_ready = false; return err; - } else { - rtlhal->fw_ready = true; } rtlhal->last_hmeboxnum = 0; /* h2c */ _rtl92cu_phy_param_tab_init(hw); @@ -1094,23 +1091,21 @@ static void _ResetDigitalProcedure1(struct ieee80211_hw *hw, bool bWithoutHWSM) if (rtl_read_byte(rtlpriv, REG_MCUFWDL) & BIT(1)) { /* reset MCU ready status */ rtl_write_byte(rtlpriv, REG_MCUFWDL, 0); - if (rtlhal->fw_ready) { - /* 8051 reset by self */ - rtl_write_byte(rtlpriv, REG_HMETFR+3, 0x20); - while ((retry_cnts++ < 100) && - (FEN_CPUEN & rtl_read_word(rtlpriv, - REG_SYS_FUNC_EN))) { - udelay(50); - } - if (retry_cnts >= 100) { - RT_TRACE(rtlpriv, COMP_ERR, DBG_EMERG, - "#####=> 8051 reset failed!.........................\n"); - /* if 8051 reset fail, reset MAC. */ - rtl_write_byte(rtlpriv, - REG_SYS_FUNC_EN + 1, - 0x50); - udelay(100); - } + /* 8051 reset by self */ + rtl_write_byte(rtlpriv, REG_HMETFR+3, 0x20); + while ((retry_cnts++ < 100) && + (FEN_CPUEN & rtl_read_word(rtlpriv, + REG_SYS_FUNC_EN))) { + udelay(50); + } + if (retry_cnts >= 100) { + RT_TRACE(rtlpriv, COMP_ERR, DBG_EMERG, + "#####=> 8051 reset failed!.........................\n"); + /* if 8051 reset fail, reset MAC. */ + rtl_write_byte(rtlpriv, + REG_SYS_FUNC_EN + 1, + 0x50); + udelay(100); } } /* Reset MAC and Enable 8051 */ diff --git a/drivers/net/wireless/rtlwifi/rtl8192cu/sw.c b/drivers/net/wireless/rtlwifi/rtl8192cu/sw.c index c04c3be5bd4e..82c85286ab2e 100644 --- a/drivers/net/wireless/rtlwifi/rtl8192cu/sw.c +++ b/drivers/net/wireless/rtlwifi/rtl8192cu/sw.c @@ -53,7 +53,6 @@ MODULE_FIRMWARE("rtlwifi/rtl8192cufw.bin"); static int rtl92cu_init_sw_vars(struct ieee80211_hw *hw) { struct rtl_priv *rtlpriv = rtl_priv(hw); - const struct firmware *firmware; int err; rtlpriv->dm.dm_initialgain_enable = true; @@ -61,29 +60,21 @@ static int rtl92cu_init_sw_vars(struct ieee80211_hw *hw) rtlpriv->dm.disable_framebursting = false; rtlpriv->dm.thermalvalue = 0; rtlpriv->dbg.global_debuglevel = rtlpriv->cfg->mod_params->debug; - rtlpriv->rtlhal.pfirmware = vmalloc(0x4000); + + /* for firmware buf */ + rtlpriv->rtlhal.pfirmware = vzalloc(0x4000); if (!rtlpriv->rtlhal.pfirmware) { RT_TRACE(rtlpriv, COMP_ERR, DBG_EMERG, "Can't alloc buffer for fw\n"); return 1; } - /* request fw */ - err = request_firmware(&firmware, rtlpriv->cfg->fw_name, - rtlpriv->io.dev); - if (err) { - RT_TRACE(rtlpriv, COMP_ERR, DBG_EMERG, - "Failed to request firmware!\n"); - return 1; - } - if (firmware->size > 0x4000) { - RT_TRACE(rtlpriv, COMP_ERR, DBG_EMERG, - "Firmware is too big!\n"); - release_firmware(firmware); - return 1; - } - memcpy(rtlpriv->rtlhal.pfirmware, firmware->data, firmware->size); - rtlpriv->rtlhal.fwsize = firmware->size; - release_firmware(firmware); + + pr_info("Loading firmware %s\n", rtlpriv->cfg->fw_name); + rtlpriv->max_fw_size = 0x4000; + err = request_firmware_nowait(THIS_MODULE, 1, + rtlpriv->cfg->fw_name, rtlpriv->io.dev, + GFP_KERNEL, hw, rtl_fw_cb); + return 0; } diff --git a/drivers/net/wireless/rtlwifi/rtl8192de/fw.c b/drivers/net/wireless/rtlwifi/rtl8192de/fw.c index b59de75a3643..f548a8d0068d 100644 --- a/drivers/net/wireless/rtlwifi/rtl8192de/fw.c +++ b/drivers/net/wireless/rtlwifi/rtl8192de/fw.c @@ -253,7 +253,7 @@ int rtl92d_download_fw(struct ieee80211_hw *hw) bool fw_downloaded = false, fwdl_in_process = false; unsigned long flags; - if (!rtlhal->pfirmware) + if (rtlpriv->max_fw_size == 0 || !rtlhal->pfirmware) return 1; fwsize = rtlhal->fwsize; pfwheader = (u8 *) rtlhal->pfirmware; @@ -532,14 +532,8 @@ static void _rtl92d_fill_h2c_command(struct ieee80211_hw *hw, void rtl92d_fill_h2c_cmd(struct ieee80211_hw *hw, u8 element_id, u32 cmd_len, u8 *cmdbuffer) { - struct rtl_hal *rtlhal = rtl_hal(rtl_priv(hw)); u32 tmp_cmdbuf[2]; - if (rtlhal->fw_ready == false) { - RT_ASSERT(false, - "return H2C cmd because of Fw download fail!!!\n"); - return; - } memset(tmp_cmdbuf, 0, 8); memcpy(tmp_cmdbuf, cmdbuffer, cmd_len); _rtl92d_fill_h2c_command(hw, element_id, cmd_len, (u8 *)&tmp_cmdbuf); diff --git a/drivers/net/wireless/rtlwifi/rtl8192de/hw.c b/drivers/net/wireless/rtlwifi/rtl8192de/hw.c index 695bccb43750..7d877125db29 100644 --- a/drivers/net/wireless/rtlwifi/rtl8192de/hw.c +++ b/drivers/net/wireless/rtlwifi/rtl8192de/hw.c @@ -931,10 +931,7 @@ int rtl92de_hw_init(struct ieee80211_hw *hw) if (err) { RT_TRACE(rtlpriv, COMP_ERR, DBG_WARNING, "Failed to download FW. Init HW without FW..\n"); - rtlhal->fw_ready = false; return 1; - } else { - rtlhal->fw_ready = true; } rtlhal->last_hmeboxnum = 0; rtlpriv->psc.fw_current_inpsmode = false; diff --git a/drivers/net/wireless/rtlwifi/rtl8192de/sw.c b/drivers/net/wireless/rtlwifi/rtl8192de/sw.c index bf625f9e632e..4898c502974d 100644 --- a/drivers/net/wireless/rtlwifi/rtl8192de/sw.c +++ b/drivers/net/wireless/rtlwifi/rtl8192de/sw.c @@ -91,7 +91,6 @@ static int rtl92d_init_sw_vars(struct ieee80211_hw *hw) u8 tid; struct rtl_priv *rtlpriv = rtl_priv(hw); struct rtl_pci *rtlpci = rtl_pcidev(rtl_pcipriv(hw)); - const struct firmware *firmware; static int header_print; rtlpriv->dm.dm_initialgain_enable = true; @@ -167,6 +166,15 @@ static int rtl92d_init_sw_vars(struct ieee80211_hw *hw) else if (rtlpriv->psc.reg_fwctrl_lps == 3) rtlpriv->psc.fwctrl_psmode = FW_PS_DTIM_MODE; + /* for early mode */ + rtlpriv->rtlhal.earlymode_enable = true; + for (tid = 0; tid < 8; tid++) + skb_queue_head_init(&rtlpriv->mac80211.skb_waitq[tid]); + + /* Only load firmware for first MAC */ + if (header_print) + return 0; + /* for firmware buf */ rtlpriv->rtlhal.pfirmware = vzalloc(0x8000); if (!rtlpriv->rtlhal.pfirmware) { @@ -175,33 +183,21 @@ static int rtl92d_init_sw_vars(struct ieee80211_hw *hw) return 1; } - if (!header_print) { - pr_info("Driver for Realtek RTL8192DE WLAN interface\n"); - pr_info("Loading firmware file %s\n", rtlpriv->cfg->fw_name); - header_print++; - } + rtlpriv->max_fw_size = 0x8000; + pr_info("Driver for Realtek RTL8192DE WLAN interface\n"); + pr_info("Loading firmware file %s\n", rtlpriv->cfg->fw_name); + header_print++; + /* request fw */ - err = request_firmware(&firmware, rtlpriv->cfg->fw_name, - rtlpriv->io.dev); + err = request_firmware_nowait(THIS_MODULE, 1, rtlpriv->cfg->fw_name, + rtlpriv->io.dev, GFP_KERNEL, hw, + rtl_fw_cb); if (err) { RT_TRACE(rtlpriv, COMP_ERR, DBG_EMERG, "Failed to request firmware!\n"); return 1; } - if (firmware->size > 0x8000) { - RT_TRACE(rtlpriv, COMP_ERR, DBG_EMERG, - "Firmware is too big!\n"); - release_firmware(firmware); - return 1; - } - memcpy(rtlpriv->rtlhal.pfirmware, firmware->data, firmware->size); - rtlpriv->rtlhal.fwsize = firmware->size; - release_firmware(firmware); - /* for early mode */ - rtlpriv->rtlhal.earlymode_enable = true; - for (tid = 0; tid < 8; tid++) - skb_queue_head_init(&rtlpriv->mac80211.skb_waitq[tid]); return 0; } diff --git a/drivers/net/wireless/rtlwifi/rtl8192se/fw.c b/drivers/net/wireless/rtlwifi/rtl8192se/fw.c index 595ecd22ffa0..0d8bf5657008 100644 --- a/drivers/net/wireless/rtlwifi/rtl8192se/fw.c +++ b/drivers/net/wireless/rtlwifi/rtl8192se/fw.c @@ -364,7 +364,7 @@ int rtl92s_download_fw(struct ieee80211_hw *hw) u8 fwstatus = FW_STATUS_INIT; bool rtstatus = true; - if (!rtlhal->pfirmware) + if (rtlpriv->max_fw_size == 0 || !rtlhal->pfirmware) return 1; firmware = (struct rt_firmware *)rtlhal->pfirmware; diff --git a/drivers/net/wireless/rtlwifi/rtl8192se/hw.c b/drivers/net/wireless/rtlwifi/rtl8192se/hw.c index cbaf1f345c6e..22098c2f38f1 100644 --- a/drivers/net/wireless/rtlwifi/rtl8192se/hw.c +++ b/drivers/net/wireless/rtlwifi/rtl8192se/hw.c @@ -949,10 +949,9 @@ int rtl92se_hw_init(struct ieee80211_hw *hw) rtstatus = rtl92s_download_fw(hw); if (!rtstatus) { RT_TRACE(rtlpriv, COMP_ERR, DBG_WARNING, - "Failed to download FW. Init HW without FW now... Please copy FW into /lib/firmware/rtlwifi\n"); - rtlhal->fw_ready = false; - } else { - rtlhal->fw_ready = true; + "Failed to download FW. Init HW without FW now... " + "Please copy FW into /lib/firmware/rtlwifi\n"); + return 1; } /* After FW download, we have to reset MAC register */ @@ -1215,9 +1214,14 @@ void rtl92se_enable_interrupt(struct ieee80211_hw *hw) void rtl92se_disable_interrupt(struct ieee80211_hw *hw) { - struct rtl_priv *rtlpriv = rtl_priv(hw); - struct rtl_pci *rtlpci = rtl_pcidev(rtl_pcipriv(hw)); + struct rtl_priv *rtlpriv; + struct rtl_pci *rtlpci; + rtlpriv = rtl_priv(hw); + /* if firmware not available, no interrupts */ + if (!rtlpriv || !rtlpriv->max_fw_size) + return; + rtlpci = rtl_pcidev(rtl_pcipriv(hw)); rtl_write_dword(rtlpriv, INTA_MASK, 0); rtl_write_dword(rtlpriv, INTA_MASK + 4, 0); diff --git a/drivers/net/wireless/rtlwifi/rtl8192se/led.c b/drivers/net/wireless/rtlwifi/rtl8192se/led.c index ef4211bca587..44949b5cbb87 100644 --- a/drivers/net/wireless/rtlwifi/rtl8192se/led.c +++ b/drivers/net/wireless/rtlwifi/rtl8192se/led.c @@ -76,10 +76,13 @@ void rtl92se_sw_led_on(struct ieee80211_hw *hw, struct rtl_led *pled) void rtl92se_sw_led_off(struct ieee80211_hw *hw, struct rtl_led *pled) { - struct rtl_priv *rtlpriv = rtl_priv(hw); + struct rtl_priv *rtlpriv; struct rtl_pci_priv *pcipriv = rtl_pcipriv(hw); u8 ledcfg; + rtlpriv = rtl_priv(hw); + if (!rtlpriv || rtlpriv->max_fw_size) + return; RT_TRACE(rtlpriv, COMP_LED, DBG_LOUD, "LedAddr:%X ledpin=%d\n", LEDCFG, pled->ledpin); diff --git a/drivers/net/wireless/rtlwifi/rtl8192se/sw.c b/drivers/net/wireless/rtlwifi/rtl8192se/sw.c index 0c47310b39b9..ca38dd9f3564 100644 --- a/drivers/net/wireless/rtlwifi/rtl8192se/sw.c +++ b/drivers/net/wireless/rtlwifi/rtl8192se/sw.c @@ -30,6 +30,8 @@ #include "../wifi.h" #include "../core.h" #include "../pci.h" +#include "../base.h" +#include "../pci.h" #include "reg.h" #include "def.h" #include "phy.h" @@ -86,12 +88,53 @@ static void rtl92s_init_aspm_vars(struct ieee80211_hw *hw) rtlpci->const_support_pciaspm = 2; } +static void rtl92se_fw_cb(const struct firmware *firmware, void *context) +{ + struct ieee80211_hw *hw = context; + struct rtl_pci_priv *pcipriv = rtl_pcipriv(hw); + struct rtl_priv *rtlpriv = rtl_priv(hw); + struct rtl_pci *rtlpci = rtl_pcidev(pcipriv); + struct rt_firmware *pfirmware = NULL; + int err; + + RT_TRACE(rtlpriv, COMP_ERR, DBG_LOUD, + "Firmware callback routine entered!\n"); + complete(&rtlpriv->firmware_loading_complete); + if (!firmware) { + pr_err("Firmware %s not available\n", rtlpriv->cfg->fw_name); + rtlpriv->max_fw_size = 0; + return; + } + if (firmware->size > rtlpriv->max_fw_size) { + RT_TRACE(rtlpriv, COMP_ERR, DBG_EMERG, + "Firmware is too big!\n"); + release_firmware(firmware); + return; + } + pfirmware = (struct rt_firmware *)rtlpriv->rtlhal.pfirmware; + memcpy(pfirmware->sz_fw_tmpbuffer, firmware->data, firmware->size); + pfirmware->sz_fw_tmpbufferlen = firmware->size; + release_firmware(firmware); + + err = ieee80211_register_hw(hw); + if (err) { + RT_TRACE(rtlpriv, COMP_ERR, DBG_EMERG, + "Can't register mac80211 hw\n"); + return; + } else { + rtlpriv->mac80211.mac80211_registered = 1; + } + rtlpci->irq_alloc = 1; + set_bit(RTL_STATUS_INTERFACE_START, &rtlpriv->status); + + /*init rfkill */ + rtl_init_rfkill(hw); +} + static int rtl92s_init_sw_vars(struct ieee80211_hw *hw) { struct rtl_priv *rtlpriv = rtl_priv(hw); struct rtl_pci *rtlpci = rtl_pcidev(rtl_pcipriv(hw)); - const struct firmware *firmware; - struct rt_firmware *pfirmware = NULL; int err = 0; u16 earlyrxthreshold = 7; @@ -189,27 +232,19 @@ static int rtl92s_init_sw_vars(struct ieee80211_hw *hw) return 1; } + rtlpriv->max_fw_size = sizeof(struct rt_firmware); + pr_info("Driver for Realtek RTL8192SE/RTL8191SE\n" "Loading firmware %s\n", rtlpriv->cfg->fw_name); /* request fw */ - err = request_firmware(&firmware, rtlpriv->cfg->fw_name, - rtlpriv->io.dev); + err = request_firmware_nowait(THIS_MODULE, 1, rtlpriv->cfg->fw_name, + rtlpriv->io.dev, GFP_KERNEL, hw, + rtl92se_fw_cb); if (err) { RT_TRACE(rtlpriv, COMP_ERR, DBG_EMERG, "Failed to request firmware!\n"); return 1; } - if (firmware->size > sizeof(struct rt_firmware)) { - RT_TRACE(rtlpriv, COMP_ERR, DBG_EMERG, - "Firmware is too big!\n"); - release_firmware(firmware); - return 1; - } - - pfirmware = (struct rt_firmware *)rtlpriv->rtlhal.pfirmware; - memcpy(pfirmware->sz_fw_tmpbuffer, firmware->data, firmware->size); - pfirmware->sz_fw_tmpbufferlen = firmware->size; - release_firmware(firmware); return err; } diff --git a/drivers/net/wireless/rtlwifi/usb.c b/drivers/net/wireless/rtlwifi/usb.c index e7a7ea96f42b..ffcf89fe45e4 100644 --- a/drivers/net/wireless/rtlwifi/usb.c +++ b/drivers/net/wireless/rtlwifi/usb.c @@ -664,15 +664,17 @@ static int rtl_usb_start(struct ieee80211_hw *hw) struct rtl_usb *rtlusb = rtl_usbdev(rtl_usbpriv(hw)); err = rtlpriv->cfg->ops->hw_init(hw); - rtl_init_rx_config(hw); + if (!err) { + rtl_init_rx_config(hw); - /* Enable software */ - SET_USB_START(rtlusb); - /* should after adapter start and interrupt enable. */ - set_hal_start(rtlhal); + /* Enable software */ + SET_USB_START(rtlusb); + /* should after adapter start and interrupt enable. */ + set_hal_start(rtlhal); - /* Start bulk IN */ - _rtl_usb_receive(hw); + /* Start bulk IN */ + _rtl_usb_receive(hw); + } return err; } @@ -949,6 +951,7 @@ int __devinit rtl_usb_probe(struct usb_interface *intf, return -ENOMEM; } rtlpriv = hw->priv; + init_completion(&rtlpriv->firmware_loading_complete); SET_IEEE80211_DEV(hw, &intf->dev); udev = interface_to_usbdev(intf); usb_get_dev(udev); @@ -982,24 +985,12 @@ int __devinit rtl_usb_probe(struct usb_interface *intf, goto error_out; } - /*init rfkill */ - /* rtl_init_rfkill(hw); */ - - err = ieee80211_register_hw(hw); - if (err) { - RT_TRACE(rtlpriv, COMP_INIT, DBG_EMERG, - "Can't register mac80211 hw\n"); - goto error_out; - } else { - rtlpriv->mac80211.mac80211_registered = 1; - } - set_bit(RTL_STATUS_INTERFACE_START, &rtlpriv->status); return 0; error_out: rtl_deinit_core(hw); _rtl_usb_io_handler_release(hw); - ieee80211_free_hw(hw); usb_put_dev(udev); + complete(&rtlpriv->firmware_loading_complete); return -ENODEV; } EXPORT_SYMBOL(rtl_usb_probe); @@ -1013,6 +1004,9 @@ void rtl_usb_disconnect(struct usb_interface *intf) if (unlikely(!rtlpriv)) return; + + /* just in case driver is removed before firmware callback */ + wait_for_completion(&rtlpriv->firmware_loading_complete); /*ieee80211_unregister_hw will call ops_stop */ if (rtlmac->mac80211_registered == 1) { ieee80211_unregister_hw(hw); diff --git a/drivers/net/wireless/rtlwifi/wifi.h b/drivers/net/wireless/rtlwifi/wifi.h index 1e5fffb2db0b..b591614c3b9b 100644 --- a/drivers/net/wireless/rtlwifi/wifi.h +++ b/drivers/net/wireless/rtlwifi/wifi.h @@ -38,6 +38,7 @@ #include #include #include +#include #include "debug.h" #define RF_CHANGE_BY_INIT 0 @@ -1047,7 +1048,6 @@ struct rtl_hal { u16 fw_subversion; bool h2c_setinprogress; u8 last_hmeboxnum; - bool fw_ready; /*Reserve page start offset except beacon in TxQ. */ u8 fw_rsvdpage_startoffset; u8 h2c_txcmd_seq; @@ -1593,6 +1593,7 @@ struct rtl_debug { }; struct rtl_priv { + struct completion firmware_loading_complete; struct rtl_locks locks; struct rtl_works works; struct rtl_mac mac80211; @@ -1614,6 +1615,7 @@ struct rtl_priv { struct rtl_rate_priv *rate_priv; struct rtl_debug dbg; + int max_fw_size; /* *hal_cfg : for diff cards -- 2.39.5