Date: Thu, 7 Nov 2019 23:39:17 +0000 (UTC) From: Mark Johnston <markj@FreeBSD.org> To: src-committers@freebsd.org, svn-src-all@freebsd.org, svn-src-head@freebsd.org Subject: svn commit: r354516 - head/sys/dev/iwm Message-ID: <201911072339.xA7NdHK3074585@repo.freebsd.org>
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Author: markj Date: Thu Nov 7 23:39:17 2019 New Revision: 354516 URL: https://svnweb.freebsd.org/changeset/base/354516 Log: iwm: Sync device initialization and reset code with iwlwifi. MFC after: 2 weeks Sponsored by: The FreeBSD Foundation Modified: head/sys/dev/iwm/if_iwm.c head/sys/dev/iwm/if_iwm_pcie_trans.c head/sys/dev/iwm/if_iwmreg.h Modified: head/sys/dev/iwm/if_iwm.c ============================================================================== --- head/sys/dev/iwm/if_iwm.c Thu Nov 7 23:39:04 2019 (r354515) +++ head/sys/dev/iwm/if_iwm.c Thu Nov 7 23:39:17 2019 (r354516) @@ -1353,6 +1353,8 @@ iwm_stop_device(struct iwm_softc *sc) */ iwm_enable_rfkill_int(sc); iwm_check_rfkill(sc); + + iwm_prepare_card_hw(sc); } /* iwlwifi: mvm/ops.c */ @@ -1381,7 +1383,15 @@ iwm_mvm_nic_config(struct iwm_softc *sc) reg_val |= radio_cfg_step << IWM_CSR_HW_IF_CONFIG_REG_POS_PHY_STEP; reg_val |= radio_cfg_dash << IWM_CSR_HW_IF_CONFIG_REG_POS_PHY_DASH; - IWM_WRITE(sc, IWM_CSR_HW_IF_CONFIG_REG, reg_val); + IWM_WRITE(sc, IWM_CSR_HW_IF_CONFIG_REG, + IWM_CSR_HW_IF_CONFIG_REG_MSK_MAC_DASH | + IWM_CSR_HW_IF_CONFIG_REG_MSK_MAC_STEP | + IWM_CSR_HW_IF_CONFIG_REG_MSK_PHY_STEP | + IWM_CSR_HW_IF_CONFIG_REG_MSK_PHY_DASH | + IWM_CSR_HW_IF_CONFIG_REG_MSK_PHY_TYPE | + IWM_CSR_HW_IF_CONFIG_REG_BIT_RADIO_SI | + IWM_CSR_HW_IF_CONFIG_REG_BIT_MAC_SI | + reg_val); IWM_DPRINTF(sc, IWM_DEBUG_RESET, "Radio type=0x%x-0x%x-0x%x\n", radio_cfg_type, Modified: head/sys/dev/iwm/if_iwm_pcie_trans.c ============================================================================== --- head/sys/dev/iwm/if_iwm_pcie_trans.c Thu Nov 7 23:39:04 2019 (r354515) +++ head/sys/dev/iwm/if_iwm_pcie_trans.c Thu Nov 7 23:39:17 2019 (r354516) @@ -346,6 +346,8 @@ iwm_enable_rfkill_int(struct iwm_softc *sc) { sc->sc_intmask = IWM_CSR_INT_BIT_RF_KILL; IWM_WRITE(sc, IWM_CSR_INT_MASK, sc->sc_intmask); + IWM_SETBITS(sc, IWM_CSR_GP_CNTRL, + IWM_CSR_GP_CNTRL_REG_FLAG_RFKILL_WAKE_L1A_EN); } int @@ -404,7 +406,9 @@ iwm_prepare_card_hw(struct iwm_softc *sc) if (iwm_set_hw_ready(sc)) goto out; - DELAY(100); + IWM_SETBITS(sc, IWM_CSR_DBG_LINK_PWR_MGMT_REG, + IWM_CSR_RESET_LINK_PWR_MGMT_DISABLED); + DELAY(1000); /* If HW is not ready, prepare the conditions to check again */ IWM_SETBITS(sc, IWM_CSR_HW_IF_CONFIG_REG, @@ -590,6 +594,16 @@ iwm_apm_init(struct iwm_softc *sc) void iwm_apm_stop(struct iwm_softc *sc) { + IWM_SETBITS(sc, IWM_CSR_DBG_LINK_PWR_MGMT_REG, + IWM_CSR_RESET_LINK_PWR_MGMT_DISABLED); + IWM_SETBITS(sc, IWM_CSR_HW_IF_CONFIG_REG, + IWM_CSR_HW_IF_CONFIG_REG_PREPARE | + IWM_CSR_HW_IF_CONFIG_REG_ENABLE_PME); + DELAY(1000); + IWM_CLRBITS(sc, IWM_CSR_DBG_LINK_PWR_MGMT_REG, + IWM_CSR_RESET_LINK_PWR_MGMT_DISABLED); + DELAY(5000); + /* stop device's busmaster DMA activity */ IWM_SETBITS(sc, IWM_CSR_RESET, IWM_CSR_RESET_REG_FLAG_STOP_MASTER); @@ -597,6 +611,14 @@ iwm_apm_stop(struct iwm_softc *sc) IWM_CSR_RESET_REG_FLAG_MASTER_DISABLED, IWM_CSR_RESET_REG_FLAG_MASTER_DISABLED, 100)) device_printf(sc->sc_dev, "timeout waiting for master\n"); + + /* + * Clear "initialization complete" bit to move adapter from + * D0A* (powered-up Active) --> D0U* (Uninitialized) state. + */ + IWM_CLRBITS(sc, IWM_CSR_GP_CNTRL, + IWM_CSR_GP_CNTRL_REG_FLAG_INIT_DONE); + IWM_DPRINTF(sc, IWM_DEBUG_TRANS, "%s: iwm apm stop\n", __func__); } Modified: head/sys/dev/iwm/if_iwmreg.h ============================================================================== --- head/sys/dev/iwm/if_iwmreg.h Thu Nov 7 23:39:04 2019 (r354515) +++ head/sys/dev/iwm/if_iwmreg.h Thu Nov 7 23:39:17 2019 (r354516) @@ -289,7 +289,7 @@ #define IWM_CSR_GP_CNTRL_REG_VAL_MAC_ACCESS_EN (0x00000001) #define IWM_CSR_GP_CNTRL_REG_MSK_POWER_SAVE_TYPE (0x07000000) -#define IWM_CSR_GP_CNTRL_REG_FLAG_MAC_POWER_SAVE (0x04000000) +#define IWM_CSR_GP_CNTRL_REG_FLAG_RFKILL_WAKE_L1A_EN (0x04000000) #define IWM_CSR_GP_CNTRL_REG_FLAG_HW_RF_KILL_SW (0x08000000)
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