From b0302aba812bcc39291cdab9ad7e37008f352a91 Mon Sep 17 00:00:00 2001 From: Larry Finger Date: Mon, 30 Jan 2012 09:54:49 -0600 Subject: 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/core.c | 46 ++++++++++++++++++++++++++++++++++++- 1 file changed, 45 insertions(+), 1 deletion(-) (limited to 'drivers/net/wireless/rtlwifi/core.c') diff --git a/drivers/net/wireless/rtlwifi/core.c b/drivers/net/wireless/rtlwifi/core.c index 0ee01ab2e4f..f231b918043 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; -- cgit v1.2.3