svn commit: r295874 - head/sys/dev/usb/wlan
Andriy Voskoboinyk
avos at FreeBSD.org
Mon Feb 22 01:15:04 UTC 2016
Author: avos
Date: Mon Feb 22 01:15:02 2016
New Revision: 295874
URL: https://svnweb.freebsd.org/changeset/base/295874
Log:
urtwn: shutdown the device properly
- R92C path: NetBSD (mostly)
- R88E path: TP-Link driver
Tested with RTL8188EU and RTL8188CUS.
Reviewed by: kevlo
Approved by: adrian (mentor)
Differential Revision: https://reviews.freebsd.org/D5198
Modified:
head/sys/dev/usb/wlan/if_urtwn.c
head/sys/dev/usb/wlan/if_urtwnreg.h
head/sys/dev/usb/wlan/if_urtwnvar.h
Modified: head/sys/dev/usb/wlan/if_urtwn.c
==============================================================================
--- head/sys/dev/usb/wlan/if_urtwn.c Mon Feb 22 00:58:04 2016 (r295873)
+++ head/sys/dev/usb/wlan/if_urtwn.c Mon Feb 22 01:15:02 2016 (r295874)
@@ -308,6 +308,8 @@ static void urtwn_start(struct urtwn_so
static void urtwn_parent(struct ieee80211com *);
static int urtwn_r92c_power_on(struct urtwn_softc *);
static int urtwn_r88e_power_on(struct urtwn_softc *);
+static void urtwn_r92c_power_off(struct urtwn_softc *);
+static void urtwn_r88e_power_off(struct urtwn_softc *);
static int urtwn_llt_init(struct urtwn_softc *);
#ifndef URTWN_WITHOUT_UCODE
static void urtwn_fw_reset(struct urtwn_softc *);
@@ -1782,6 +1784,7 @@ urtwn_read_rom(struct urtwn_softc *sc)
sc->sc_rf_write = urtwn_r92c_rf_write;
sc->sc_power_on = urtwn_r92c_power_on;
+ sc->sc_power_off = urtwn_r92c_power_off;
return (0);
}
@@ -1809,6 +1812,7 @@ urtwn_r88e_read_rom(struct urtwn_softc *
sc->sc_rf_write = urtwn_r88e_rf_write;
sc->sc_power_on = urtwn_r88e_power_on;
+ sc->sc_power_off = urtwn_r88e_power_off;
return (0);
}
@@ -3235,7 +3239,7 @@ urtwn_r88e_power_on(struct urtwn_softc *
/* Enable LDO normal mode. */
error = urtwn_write_1(sc, R92C_LPLDO_CTRL,
- urtwn_read_1(sc, R92C_LPLDO_CTRL) & ~0x10);
+ urtwn_read_1(sc, R92C_LPLDO_CTRL) & ~R92C_LPLDO_CTRL_SLEEP);
if (error != USB_ERR_NORMAL_COMPLETION)
return (EIO);
@@ -3254,6 +3258,269 @@ urtwn_r88e_power_on(struct urtwn_softc *
return (0);
}
+static __inline void
+urtwn_power_off(struct urtwn_softc *sc)
+{
+
+ return sc->sc_power_off(sc);
+}
+
+static void
+urtwn_r92c_power_off(struct urtwn_softc *sc)
+{
+ uint32_t reg;
+
+ /* Block all Tx queues. */
+ urtwn_write_1(sc, R92C_TXPAUSE, R92C_TX_QUEUE_ALL);
+
+ /* Disable RF */
+ urtwn_rf_write(sc, 0, 0, 0);
+
+ urtwn_write_1(sc, R92C_APSD_CTRL, R92C_APSD_CTRL_OFF);
+
+ /* Reset BB state machine */
+ urtwn_write_1(sc, R92C_SYS_FUNC_EN,
+ R92C_SYS_FUNC_EN_USBD | R92C_SYS_FUNC_EN_USBA |
+ R92C_SYS_FUNC_EN_BB_GLB_RST);
+ urtwn_write_1(sc, R92C_SYS_FUNC_EN,
+ R92C_SYS_FUNC_EN_USBD | R92C_SYS_FUNC_EN_USBA);
+
+ /*
+ * Reset digital sequence
+ */
+#ifndef URTWN_WITHOUT_UCODE
+ if (urtwn_read_1(sc, R92C_MCUFWDL) & R92C_MCUFWDL_RDY) {
+ /* Reset MCU ready status */
+ urtwn_write_1(sc, R92C_MCUFWDL, 0);
+
+ /* If firmware in ram code, do reset */
+ urtwn_fw_reset(sc);
+ }
+#endif
+
+ /* Reset MAC and Enable 8051 */
+ urtwn_write_1(sc, R92C_SYS_FUNC_EN + 1,
+ (R92C_SYS_FUNC_EN_CPUEN |
+ R92C_SYS_FUNC_EN_ELDR |
+ R92C_SYS_FUNC_EN_HWPDN) >> 8);
+
+ /* Reset MCU ready status */
+ urtwn_write_1(sc, R92C_MCUFWDL, 0);
+
+ /* Disable MAC clock */
+ urtwn_write_2(sc, R92C_SYS_CLKR,
+ R92C_SYS_CLKR_ANAD16V_EN |
+ R92C_SYS_CLKR_ANA8M |
+ R92C_SYS_CLKR_LOADER_EN |
+ R92C_SYS_CLKR_80M_SSC_DIS |
+ R92C_SYS_CLKR_SYS_EN |
+ R92C_SYS_CLKR_RING_EN |
+ 0x4000);
+
+ /* Disable AFE PLL */
+ urtwn_write_1(sc, R92C_AFE_PLL_CTRL, 0x80);
+
+ /* Gated AFE DIG_CLOCK */
+ urtwn_write_2(sc, R92C_AFE_XTAL_CTRL, 0x880F);
+
+ /* Isolated digital to PON */
+ urtwn_write_1(sc, R92C_SYS_ISO_CTRL,
+ R92C_SYS_ISO_CTRL_MD2PP |
+ R92C_SYS_ISO_CTRL_PA2PCIE |
+ R92C_SYS_ISO_CTRL_PD2CORE |
+ R92C_SYS_ISO_CTRL_IP2MAC |
+ R92C_SYS_ISO_CTRL_DIOP |
+ R92C_SYS_ISO_CTRL_DIOE);
+
+ /*
+ * Pull GPIO PIN to balance level and LED control
+ */
+ /* 1. Disable GPIO[7:0] */
+ urtwn_write_2(sc, R92C_GPIO_IOSEL, 0x0000);
+
+ reg = urtwn_read_4(sc, R92C_GPIO_PIN_CTRL) & ~0x0000ff00;
+ reg |= ((reg << 8) & 0x0000ff00) | 0x00ff0000;
+ urtwn_write_4(sc, R92C_GPIO_PIN_CTRL, reg);
+
+ /* Disable GPIO[10:8] */
+ urtwn_write_1(sc, R92C_MAC_PINMUX_CFG, 0x00);
+
+ reg = urtwn_read_2(sc, R92C_GPIO_IO_SEL) & ~0x00f0;
+ reg |= (((reg & 0x000f) << 4) | 0x0780);
+ urtwn_write_2(sc, R92C_GPIO_IO_SEL, reg);
+
+ /* Disable LED0 & 1 */
+ urtwn_write_2(sc, R92C_LEDCFG0, 0x8080);
+
+ /*
+ * Reset digital sequence
+ */
+ /* Disable ELDR clock */
+ urtwn_write_2(sc, R92C_SYS_CLKR,
+ R92C_SYS_CLKR_ANAD16V_EN |
+ R92C_SYS_CLKR_ANA8M |
+ R92C_SYS_CLKR_LOADER_EN |
+ R92C_SYS_CLKR_80M_SSC_DIS |
+ R92C_SYS_CLKR_SYS_EN |
+ R92C_SYS_CLKR_RING_EN |
+ 0x4000);
+
+ /* Isolated ELDR to PON */
+ urtwn_write_1(sc, R92C_SYS_ISO_CTRL + 1,
+ (R92C_SYS_ISO_CTRL_DIOR |
+ R92C_SYS_ISO_CTRL_PWC_EV12V) >> 8);
+
+ /*
+ * Disable analog sequence
+ */
+ /* Disable A15 power */
+ urtwn_write_1(sc, R92C_LDOA15_CTRL, R92C_LDOA15_CTRL_OBUF);
+ /* Disable digital core power */
+ urtwn_write_1(sc, R92C_LDOV12D_CTRL,
+ urtwn_read_1(sc, R92C_LDOV12D_CTRL) &
+ ~R92C_LDOV12D_CTRL_LDV12_EN);
+
+ /* Enter PFM mode */
+ urtwn_write_1(sc, R92C_SPS0_CTRL, 0x23);
+
+ /* Set USB suspend */
+ urtwn_write_2(sc, R92C_APS_FSMCO,
+ R92C_APS_FSMCO_APDM_HOST |
+ R92C_APS_FSMCO_AFSM_HSUS |
+ R92C_APS_FSMCO_PFM_ALDN);
+
+ /* Lock ISO/CLK/Power control register. */
+ urtwn_write_1(sc, R92C_RSV_CTRL, 0x0E);
+}
+
+static void
+urtwn_r88e_power_off(struct urtwn_softc *sc)
+{
+ uint8_t reg;
+ int ntries;
+
+ /* Disable any kind of TX reports. */
+ urtwn_write_1(sc, R88E_TX_RPT_CTRL,
+ urtwn_read_1(sc, R88E_TX_RPT_CTRL) &
+ ~(R88E_TX_RPT1_ENA | R88E_TX_RPT2_ENA));
+
+ /* Stop Rx. */
+ urtwn_write_1(sc, R92C_CR, 0);
+
+ /* Move card to Low Power State. */
+ /* Block all Tx queues. */
+ urtwn_write_1(sc, R92C_TXPAUSE, R92C_TX_QUEUE_ALL);
+
+ for (ntries = 0; ntries < 20; ntries++) {
+ /* Should be zero if no packet is transmitting. */
+ if (urtwn_read_4(sc, R88E_SCH_TXCMD) == 0)
+ break;
+
+ urtwn_ms_delay(sc);
+ }
+ if (ntries == 20) {
+ device_printf(sc->sc_dev, "%s: failed to block Tx queues\n",
+ __func__);
+ return;
+ }
+
+ /* CCK and OFDM are disabled, and clock are gated. */
+ urtwn_write_1(sc, R92C_SYS_FUNC_EN,
+ urtwn_read_1(sc, R92C_SYS_FUNC_EN) & ~R92C_SYS_FUNC_EN_BBRSTB);
+
+ urtwn_ms_delay(sc);
+
+ /* Reset MAC TRX */
+ urtwn_write_1(sc, R92C_CR,
+ R92C_CR_HCI_TXDMA_EN | R92C_CR_HCI_RXDMA_EN |
+ R92C_CR_TXDMA_EN | R92C_CR_RXDMA_EN |
+ R92C_CR_PROTOCOL_EN | R92C_CR_SCHEDULE_EN);
+
+ /* check if removed later */
+ urtwn_write_1(sc, R92C_CR + 1,
+ urtwn_read_1(sc, R92C_CR + 1) & ~(R92C_CR_ENSEC >> 8));
+
+ /* Respond TxOK to scheduler */
+ urtwn_write_1(sc, R92C_DUAL_TSF_RST,
+ urtwn_read_1(sc, R92C_DUAL_TSF_RST) | 0x20);
+
+ /* If firmware in ram code, do reset. */
+#ifndef URTWN_WITHOUT_UCODE
+ if (urtwn_read_1(sc, R92C_MCUFWDL) & R92C_MCUFWDL_RDY)
+ urtwn_r88e_fw_reset(sc);
+#endif
+
+ /* Reset MCU ready status. */
+ urtwn_write_1(sc, R92C_MCUFWDL, 0x00);
+
+ /* Disable 32k. */
+ urtwn_write_1(sc, R88E_32K_CTRL,
+ urtwn_read_1(sc, R88E_32K_CTRL) & ~0x01);
+
+ /* Move card to Disabled state. */
+ /* Turn off RF. */
+ urtwn_write_1(sc, R92C_RF_CTRL, 0);
+
+ /* LDO Sleep mode. */
+ urtwn_write_1(sc, R92C_LPLDO_CTRL,
+ urtwn_read_1(sc, R92C_LPLDO_CTRL) | R92C_LPLDO_CTRL_SLEEP);
+
+ /* Turn off MAC by HW state machine */
+ urtwn_write_1(sc, R92C_APS_FSMCO + 1,
+ urtwn_read_1(sc, R92C_APS_FSMCO + 1) |
+ (R92C_APS_FSMCO_APFM_OFF >> 8));
+
+ for (ntries = 0; ntries < 20; ntries++) {
+ /* Wait until it will be disabled. */
+ if ((urtwn_read_1(sc, R92C_APS_FSMCO + 1) &
+ (R92C_APS_FSMCO_APFM_OFF >> 8)) == 0)
+ break;
+
+ urtwn_ms_delay(sc);
+ }
+ if (ntries == 20) {
+ device_printf(sc->sc_dev, "%s: could not turn off MAC\n",
+ __func__);
+ return;
+ }
+
+ /* schmit trigger */
+ urtwn_write_1(sc, R92C_AFE_XTAL_CTRL + 2,
+ urtwn_read_1(sc, R92C_AFE_XTAL_CTRL + 2) | 0x80);
+
+ /* Enable WL suspend. */
+ urtwn_write_1(sc, R92C_APS_FSMCO + 1,
+ (urtwn_read_1(sc, R92C_APS_FSMCO + 1) & ~0x10) | 0x08);
+
+ /* Enable bandgap mbias in suspend. */
+ urtwn_write_1(sc, R92C_APS_FSMCO + 3, 0);
+
+ /* Clear SIC_EN register. */
+ urtwn_write_1(sc, R92C_GPIO_MUXCFG + 1,
+ urtwn_read_1(sc, R92C_GPIO_MUXCFG + 1) & ~0x10);
+
+ /* Set USB suspend enable local register */
+ urtwn_write_1(sc, R92C_USB_SUSPEND,
+ urtwn_read_1(sc, R92C_USB_SUSPEND) | 0x10);
+
+ /* Reset MCU IO Wrapper. */
+ reg = urtwn_read_1(sc, R92C_RSV_CTRL + 1);
+ urtwn_write_1(sc, R92C_RSV_CTRL + 1, reg & ~0x08);
+ urtwn_write_1(sc, R92C_RSV_CTRL + 1, reg | 0x08);
+
+ /* marked as 'For Power Consumption' code. */
+ urtwn_write_1(sc, R92C_GPIO_OUT, urtwn_read_1(sc, R92C_GPIO_IN));
+ urtwn_write_1(sc, R92C_GPIO_IOSEL, 0xff);
+
+ urtwn_write_1(sc, R92C_GPIO_IO_SEL,
+ urtwn_read_1(sc, R92C_GPIO_IO_SEL) << 4);
+ urtwn_write_1(sc, R92C_GPIO_MOD,
+ urtwn_read_1(sc, R92C_GPIO_MOD) | 0x0f);
+
+ /* Set LNA, TRSW, EX_PA Pin to output mode. */
+ urtwn_write_4(sc, R88E_BB_PAD_CTRL, 0x00080808);
+}
+
static int
urtwn_llt_init(struct urtwn_softc *sc)
{
@@ -4910,9 +5177,10 @@ urtwn_stop(struct urtwn_softc *sc)
URTWN_TEMP_MEASURED);
sc->thcal_lctemp = 0;
callout_stop(&sc->sc_watchdog_ch);
- urtwn_abort_xfers(sc);
+ urtwn_abort_xfers(sc);
urtwn_drain_mbufq(sc);
+ urtwn_power_off(sc);
URTWN_UNLOCK(sc);
}
Modified: head/sys/dev/usb/wlan/if_urtwnreg.h
==============================================================================
--- head/sys/dev/usb/wlan/if_urtwnreg.h Mon Feb 22 00:58:04 2016 (r295873)
+++ head/sys/dev/usb/wlan/if_urtwnreg.h Mon Feb 22 01:15:02 2016 (r295874)
@@ -70,6 +70,10 @@
#define R92C_GPIO_IO_SEL 0x042
#define R92C_MAC_PINMUX_CFG 0x043
#define R92C_GPIO_PIN_CTRL 0x044
+#define R92C_GPIO_IN 0x044
+#define R92C_GPIO_OUT 0x045
+#define R92C_GPIO_IOSEL 0x046
+#define R92C_GPIO_MOD 0x047
#define R92C_GPIO_INTM 0x048
#define R92C_LEDCFG0 0x04c
#define R92C_LEDCFG1 0x04d
@@ -79,6 +83,7 @@
#define R92C_FSISR 0x054
#define R92C_HSIMR 0x058
#define R92C_HSISR 0x05c
+#define R88E_BB_PAD_CTRL 0x064
#define R92C_MCUFWDL 0x080
#define R92C_HMEBOX_EXT(idx) (0x088 + (idx) * 2)
#define R88E_HIMR 0x0b0
@@ -117,6 +122,7 @@
#define R92C_MBIST_START 0x174
#define R92C_MBIST_DONE 0x178
#define R92C_MBIST_FAIL 0x17c
+#define R88E_32K_CTRL 0x194
#define R92C_C2HEVT_MSG_NORMAL 0x1a0
#define R92C_C2HEVT_MSG_TEST 0x1b8
#define R92C_C2HEVT_CLEAR 0x1bf
@@ -204,6 +210,7 @@
#define R92C_BE_ADMTIME 0x5c8
#define R92C_EDCA_RANDOM_GEN 0x5cc
#define R92C_SCH_TXCMD 0x5d0
+#define R88E_SCH_TXCMD 0x5f8
/* WMAC Configuration. */
#define R92C_APSD_CTRL 0x600
#define R92C_BWOPMODE 0x603
@@ -303,13 +310,30 @@
#define R92C_RF_CTRL_RSTB 0x02
#define R92C_RF_CTRL_SDMRSTB 0x04
+/* Bits for R92C_LDOA15_CTRL. */
+#define R92C_LDOA15_CTRL_EN 0x01
+#define R92C_LDOA15_CTRL_STBY 0x02
+#define R92C_LDOA15_CTRL_OBUF 0x04
+#define R92C_LDOA15_CTRL_REG_VOS 0x08
+
/* Bits for R92C_LDOV12D_CTRL. */
#define R92C_LDOV12D_CTRL_LDV12_EN 0x01
+/* Bits for R92C_LPLDO_CTRL. */
+#define R92C_LPLDO_CTRL_SLEEP 0x10
+
/* Bits for R92C_AFE_XTAL_CTRL. */
#define R92C_AFE_XTAL_CTRL_ADDR_M 0x007ff800
#define R92C_AFE_XTAL_CTRL_ADDR_S 11
+/* Bits for R92C_AFE_PLL_CTRL. */
+#define R92C_AFE_PLL_CTRL_EN 0x0001
+#define R92C_AFE_PLL_CTRL_320_EN 0x0002
+#define R92C_AFE_PLL_CTRL_FREF_SEL 0x0004
+#define R92C_AFE_PLL_CTRL_EDGE_SEL 0x0008
+#define R92C_AFE_PLL_CTRL_WDOGB 0x0010
+#define R92C_AFE_PLL_CTRL_LPFEN 0x0020
+
/* Bits for R92C_EFUSE_CTRL. */
#define R92C_EFUSE_CTRL_DATA_M 0x000000ff
#define R92C_EFUSE_CTRL_DATA_S 0
@@ -748,6 +772,7 @@
/*
* USB registers.
*/
+#define R92C_USB_SUSPEND 0xfe10
#define R92C_USB_INFO 0xfe17
#define R92C_USB_SPECIAL_OPTION 0xfe55
#define R92C_USB_HCPWM 0xfe57
Modified: head/sys/dev/usb/wlan/if_urtwnvar.h
==============================================================================
--- head/sys/dev/usb/wlan/if_urtwnvar.h Mon Feb 22 00:58:04 2016 (r295873)
+++ head/sys/dev/usb/wlan/if_urtwnvar.h Mon Feb 22 01:15:02 2016 (r295874)
@@ -172,6 +172,7 @@ struct urtwn_softc {
void (*sc_rf_write)(struct urtwn_softc *,
int, uint8_t, uint32_t);
int (*sc_power_on)(struct urtwn_softc *);
+ void (*sc_power_off)(struct urtwn_softc *);
struct ieee80211_node *node_list[R88E_MACID_MAX + 1];
struct mtx nt_mtx;
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