| 1234567891011121314151617181920212223242526272829303132333435363738394041424344454647484950515253545556575859606162636465666768 |
- From b3edeceb7c8c3b0eb70b26e3237afa5086afe8ed Mon Sep 17 00:00:00 2001
- From: Jes Sorensen <Jes.Sorensen@redhat.com>
- Date: Fri, 26 Aug 2016 15:16:32 -0400
- Subject: [PATCH] rtl8xxxu: Implement rtl8188eu_active_to_emu()
- Per the vendor driver's sequence table, this seems to be the correct
- way to disable RF on the 8188eu, even if the driver doesn't actually
- call the sequence by itself.
- Signed-off-by: Jes Sorensen <Jes.Sorensen@redhat.com>
- ---
- .../net/wireless/realtek/rtl8xxxu/rtl8xxxu_8188e.c | 38 ++++++++++++++++++++++
- 1 file changed, 38 insertions(+)
- --- a/drivers/net/wireless/realtek/rtl8xxxu/rtl8xxxu_8188e.c
- +++ b/drivers/net/wireless/realtek/rtl8xxxu/rtl8xxxu_8188e.c
- @@ -1155,6 +1155,42 @@ exit:
- return ret;
- }
-
- +static int rtl8188eu_active_to_emu(struct rtl8xxxu_priv *priv)
- +{
- + u8 val8;
- + int count, ret = 0;
- +
- + /* Turn off RF */
- + rtl8xxxu_write8(priv, REG_RF_CTRL, 0);
- +
- + /* LDO Sleep mode */
- + val8 = rtl8xxxu_read8(priv, REG_LPLDO_CTRL);
- + val8 |= BIT(4);
- + rtl8xxxu_write8(priv, REG_LPLDO_CTRL, val8);
- +
- + /* 0x0005[1] = 1 turn off MAC by HW state machine*/
- + val8 = rtl8xxxu_read8(priv, REG_APS_FSMCO + 1);
- + val8 |= BIT(1);
- + rtl8xxxu_write8(priv, REG_APS_FSMCO + 1, val8);
- +
- + for (count = RTL8XXXU_MAX_REG_POLL; count; count--) {
- + val8 = rtl8xxxu_read8(priv, REG_APS_FSMCO + 1);
- + if ((val8 & BIT(1)) == 0)
- + break;
- + udelay(10);
- + }
- +
- + if (!count) {
- + dev_warn(&priv->udev->dev, "%s: Disabling MAC timed out\n",
- + __func__);
- + ret = -EBUSY;
- + goto exit;
- + }
- +
- +exit:
- + return ret;
- +}
- +
- static int rtl8188eu_power_on(struct rtl8xxxu_priv *priv)
- {
- u16 val16;
- @@ -1202,6 +1238,8 @@ static void rtl8188e_disable_rf(struct r
- rtl8xxxu_write_rfreg(priv, RF_A, RF6052_REG_AC, 0);
- if (priv->rf_paths == 2)
- rtl8xxxu_write_rfreg(priv, RF_B, RF6052_REG_AC, 0);
- +
- + rtl8188eu_active_to_emu(priv);
- }
-
- static void rtl8188e_usb_quirks(struct rtl8xxxu_priv *priv)
|
