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rtlwifi: rtl8192cu: Add new firmware

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Vendor driver rtl8188C_8192C_8192D_usb_linux_v3.4.2_3727.20120404 introduced
new firmware for these chips. The code try for the new file, and fall back to
the original firmware if the new file is not available.

Signed-off-by: Larry Finger <Larry.Finger@lwfinger.net>
Cc: Stable <stable@vger.kernel.org>
Signed-off-by: John W. Linville <linville@tuxdriver.com>
This commit is contained in:
Larry Finger 2013-11-18 11:11:26 -06:00 committed by John W. Linville
parent 8fd77aec1a
commit 62009b7f12
3 changed files with 24 additions and 3 deletions
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10
drivers/net/wireless/rtlwifi/core.c
View File

@ -46,10 +46,20 @@ void rtl_fw_cb(const struct firmware *firmware, void *context)
"Firmware callback routine entered!\n");
complete(&rtlpriv->firmware_loading_complete);
if (!firmware) {
if (rtlpriv->cfg->alt_fw_name) {
err = request_firmware(&firmware,
rtlpriv->cfg->alt_fw_name,
rtlpriv->io.dev);
pr_info("Loading alternative firmware %s\n",
rtlpriv->cfg->alt_fw_name);
if (!err)
goto found_alt;
}
pr_err("Firmware %s not available\n", rtlpriv->cfg->fw_name);
rtlpriv->max_fw_size = 0;
return;
}
found_alt:
if (firmware->size > rtlpriv->max_fw_size) {
RT_TRACE(rtlpriv, COMP_ERR, DBG_EMERG,
"Firmware is too big!\n");

16
drivers/net/wireless/rtlwifi/rtl8192cu/sw.c
View File

@ -50,6 +50,9 @@ MODULE_AUTHOR("Larry Finger <Larry.Finger@lwfinger.net>");
MODULE_LICENSE("GPL");
MODULE_DESCRIPTION("Realtek 8192C/8188C 802.11n USB wireless");
MODULE_FIRMWARE("rtlwifi/rtl8192cufw.bin");
MODULE_FIRMWARE("rtlwifi/rtl8192cufw_A.bin");
MODULE_FIRMWARE("rtlwifi/rtl8192cufw_B.bin");
MODULE_FIRMWARE("rtlwifi/rtl8192cufw_TMSC.bin");
static int rtl92cu_init_sw_vars(struct ieee80211_hw *hw)
{
@ -69,14 +72,21 @@ static int rtl92cu_init_sw_vars(struct ieee80211_hw *hw)
"Can't alloc buffer for fw\n");
return 1;
}
if (IS_VENDOR_UMC_A_CUT(rtlpriv->rtlhal.version) &&
!IS_92C_SERIAL(rtlpriv->rtlhal.version)) {
rtlpriv->cfg->fw_name = "rtlwifi/rtl8192cufw_A.bin";
} else if (IS_81xxC_VENDOR_UMC_B_CUT(rtlpriv->rtlhal.version)) {
rtlpriv->cfg->fw_name = "rtlwifi/rtl8192cufw_B.bin";
} else {
rtlpriv->cfg->fw_name = "rtlwifi/rtl8192cufw_TMSC.bin";
}
/* provide name of alternative file */
rtlpriv->cfg->alt_fw_name = "rtlwifi/rtl8192cufw.bin";
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 err;
}

1
drivers/net/wireless/rtlwifi/wifi.h
View File

@ -1804,6 +1804,7 @@ struct rtl_hal_cfg {
bool write_readback;
char *name;
char *fw_name;
char *alt_fw_name;
struct rtl_hal_ops *ops;
struct rtl_mod_params *mod_params;
struct rtl_hal_usbint_cfg *usb_interface_cfg;