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 <Larry.Finger@lwfinger.net>
Cc: Stable <stable@vger.kernel.org>
Signed-off-by: John W. Linville <linville@tuxdriver.com>
diff --git a/drivers/net/wireless/rtlwifi/rtl8192cu/hw.c b/drivers/net/wireless/rtlwifi/rtl8192cu/hw.c
index 7f17168..0c74d4f 100644
--- a/drivers/net/wireless/rtlwifi/rtl8192cu/hw.c
+++ b/drivers/net/wireless/rtlwifi/rtl8192cu/hw.c
@@ -997,10 +997,7 @@
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 @@
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 */