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iwm: Sync device initialization and reset code with iwlwifi.

Browse Source 
MFC after:	2 weeks
Sponsored by:	The FreeBSD Foundation
This commit is contained in:
Mark Johnston 2019-11-07 23:39:17 +00:00
parent 666c8655f2
commit 1903c60041
Notes: svn2git 2020-12-20 02:59:44 +00:00 
svn path=/head/; revision=354516
3 changed files with 35 additions and 3 deletions
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12
sys/dev/iwm/if_iwm.c
View File

@ -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,

24
sys/dev/iwm/if_iwm_pcie_trans.c
View File

@ -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__);
}

2
sys/dev/iwm/if_iwmreg.h
View File

@ -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)