| 123456789101112131415161718192021222324252627282930313233343536373839404142434445464748495051525354555657585960616263646566676869707172737475767778798081828384858687888990919293949596979899100101102103104105 |
- From a7c3d46915bce6d84e61e684e76564b034bdc1a9 Mon Sep 17 00:00:00 2001
- From: Jes Sorensen <Jes.Sorensen@redhat.com>
- Date: Mon, 27 Jun 2016 17:08:30 -0400
- Subject: [PATCH] rtl8xxxu: First stab at rtl8188e_power_on()
- Code based on code from Andrea Merello.
- Signed-off-by: Jes Sorensen <Jes.Sorensen@redhat.com>
- ---
- .../net/wireless/realtek/rtl8xxxu/rtl8xxxu_8188e.c | 82 ++++++++++++++++++++++
- 1 file changed, 82 insertions(+)
- --- a/drivers/net/wireless/realtek/rtl8xxxu/rtl8xxxu_8188e.c
- +++ b/drivers/net/wireless/realtek/rtl8xxxu/rtl8xxxu_8188e.c
- @@ -92,8 +92,90 @@ static int rtl8188eu_load_firmware(struc
- return ret;
- }
-
- +static int rtl8188e_emu_to_active(struct rtl8xxxu_priv *priv)
- +{
- + u8 val8;
- + u32 val32;
- + u16 val16;
- + int count, ret = 0;
- +
- + /* wait till 0x04[17] = 1 power ready*/
- + for (count = RTL8XXXU_MAX_REG_POLL; count; count--) {
- + val32 = rtl8xxxu_read32(priv, REG_APS_FSMCO);
- + if (val32 & BIT(17))
- + break;
- +
- + udelay(10);
- + }
- +
- + if (!count) {
- + ret = -EBUSY;
- + goto exit;
- + }
- +
- + /* reset baseband */
- + val8 = rtl8xxxu_read8(priv, REG_SYS_FUNC);
- + val8 &= ~(SYS_FUNC_BBRSTB | SYS_FUNC_BB_GLB_RSTN);
- + rtl8xxxu_write8(priv, REG_SYS_FUNC, val8);
- +
- + /*0x24[23] = 2b'01 schmit trigger */
- + val32 = rtl8xxxu_read32(priv, REG_AFE_XTAL_CTRL);
- + val32 |= BIT(23);
- + rtl8xxxu_write32(priv, REG_AFE_XTAL_CTRL, val32);
- +
- + /* 0x04[15] = 0 disable HWPDN (control by DRV)*/
- + val16 = rtl8xxxu_read16(priv, REG_APS_FSMCO);
- + val16 &= ~APS_FSMCO_HW_POWERDOWN;
- + rtl8xxxu_write16(priv, REG_APS_FSMCO, val16);
- +
- + /*0x04[12:11] = 2b'00 disable WL suspend*/
- + val16 = rtl8xxxu_read16(priv, REG_APS_FSMCO);
- + val16 &= ~(APS_FSMCO_HW_SUSPEND | APS_FSMCO_PCIE);
- + rtl8xxxu_write16(priv, REG_APS_FSMCO, val16);
- +
- + /* set, then poll until 0 */
- + val32 = rtl8xxxu_read32(priv, REG_APS_FSMCO);
- + val32 |= APS_FSMCO_MAC_ENABLE;
- + rtl8xxxu_write32(priv, REG_APS_FSMCO, val32);
- +
- + for (count = RTL8XXXU_MAX_REG_POLL; count; count--) {
- + val32 = rtl8xxxu_read32(priv, REG_APS_FSMCO);
- + if ((val32 & APS_FSMCO_MAC_ENABLE) == 0) {
- + ret = 0;
- + break;
- + }
- + udelay(10);
- + }
- +
- + if (!count) {
- + ret = -EBUSY;
- + goto exit;
- + }
- +
- + /* LDO normal mode*/
- + val8 = rtl8xxxu_read8(priv, REG_LPLDO_CTRL);
- + val8 &= ~BIT(4);
- + rtl8xxxu_write8(priv, REG_LPLDO_CTRL, val8);
- +
- +exit:
- + return ret;
- +}
- +
- +static int rtl8188eu_power_on(struct rtl8xxxu_priv *priv)
- +{
- + int ret;
- +
- + ret = rtl8188e_emu_to_active(priv);
- + if (ret)
- + goto exit;
- +
- +exit:
- + return ret;
- +}
- +
- struct rtl8xxxu_fileops rtl8188eu_fops = {
- .parse_efuse = rtl8188eu_parse_efuse,
- .load_firmware = rtl8188eu_load_firmware,
- + .power_on = rtl8188eu_power_on,
- .reset_8051 = rtl8xxxu_reset_8051,
- };
|
