From f118a91d16127e461cc8c17c529306910f13a8b1 Mon Sep 17 00:00:00 2001 From: Tomas Winkler Date: Thu, 29 May 2008 16:34:58 +0800 Subject: [PATCH] iwlwifi: implement apm stop function This patch adds apm stop function for 4965 and 5000. Signed-off-by: Tomas Winkler Signed-off-by: John W. Linville --- drivers/net/wireless/iwlwifi/iwl-4965.c | 19 ++++++++++++++++++- drivers/net/wireless/iwlwifi/iwl-5000.c | 20 ++++++++++++++++++++ drivers/net/wireless/iwlwifi/iwl-core.h | 1 + 3 files changed, 39 insertions(+), 1 deletion(-) diff --git a/drivers/net/wireless/iwlwifi/iwl-4965.c b/drivers/net/wireless/iwlwifi/iwl-4965.c index 646c589b82..080fc54db1 100644 --- a/drivers/net/wireless/iwlwifi/iwl-4965.c +++ b/drivers/net/wireless/iwlwifi/iwl-4965.c @@ -642,6 +642,22 @@ void iwl4965_hw_txq_ctx_stop(struct iwl_priv *priv) iwl_hw_txq_ctx_free(priv); } +static void iwl4965_apm_stop(struct iwl_priv *priv) +{ + unsigned long flags; + + iwl4965_hw_nic_stop_master(priv); + + spin_lock_irqsave(&priv->lock, flags); + + iwl_set_bit(priv, CSR_RESET, CSR_RESET_REG_FLAG_SW_RESET); + + udelay(10); + + iwl_set_bit(priv, CSR_GP_CNTRL, CSR_GP_CNTRL_REG_FLAG_INIT_DONE); + spin_unlock_irqrestore(&priv->lock, flags); +} + static int iwl4965_apm_reset(struct iwl_priv *priv) { int ret = 0; @@ -658,6 +674,7 @@ static int iwl4965_apm_reset(struct iwl_priv *priv) /* FIXME: put here L1A -L0S w/a */ iwl_set_bit(priv, CSR_GP_CNTRL, CSR_GP_CNTRL_REG_FLAG_INIT_DONE); + ret = iwl_poll_bit(priv, CSR_RESET, CSR_GP_CNTRL_REG_FLAG_MAC_CLOCK_READY, CSR_GP_CNTRL_REG_FLAG_MAC_CLOCK_READY, 25); @@ -689,7 +706,6 @@ out: spin_unlock_irqrestore(&priv->lock, flags); return ret; - } #define REG_RECALIB_PERIOD (60) @@ -3625,6 +3641,7 @@ static struct iwl_lib_ops iwl4965_lib = { .apm_ops = { .init = iwl4965_apm_init, .reset = iwl4965_apm_reset, + .stop = iwl4965_apm_stop, .config = iwl4965_nic_config, .set_pwr_src = iwl4965_set_pwr_src, }, diff --git a/drivers/net/wireless/iwlwifi/iwl-5000.c b/drivers/net/wireless/iwlwifi/iwl-5000.c index 10054bdf3e..27cfe3c9a5 100644 --- a/drivers/net/wireless/iwlwifi/iwl-5000.c +++ b/drivers/net/wireless/iwlwifi/iwl-5000.c @@ -100,6 +100,25 @@ static int iwl5000_apm_init(struct iwl_priv *priv) return ret; } +/* FIXME: this is indentical to 4965 */ +static void iwl5000_apm_stop(struct iwl_priv *priv) +{ + unsigned long flags; + + iwl4965_hw_nic_stop_master(priv); + + spin_lock_irqsave(&priv->lock, flags); + + iwl_set_bit(priv, CSR_RESET, CSR_RESET_REG_FLAG_SW_RESET); + + udelay(10); + + iwl_set_bit(priv, CSR_GP_CNTRL, CSR_GP_CNTRL_REG_FLAG_INIT_DONE); + + spin_unlock_irqrestore(&priv->lock, flags); +} + + static int iwl5000_apm_reset(struct iwl_priv *priv) { int ret = 0; @@ -859,6 +878,7 @@ static struct iwl_lib_ops iwl5000_lib = { .apm_ops = { .init = iwl5000_apm_init, .reset = iwl5000_apm_reset, + .stop = iwl5000_apm_stop, .config = iwl5000_nic_config, .set_pwr_src = iwl4965_set_pwr_src, }, diff --git a/drivers/net/wireless/iwlwifi/iwl-core.h b/drivers/net/wireless/iwlwifi/iwl-core.h index d82660c88a..d6e6985181 100644 --- a/drivers/net/wireless/iwlwifi/iwl-core.h +++ b/drivers/net/wireless/iwlwifi/iwl-core.h @@ -125,6 +125,7 @@ struct iwl_lib_ops { struct { int (*init)(struct iwl_priv *priv); int (*reset)(struct iwl_priv *priv); + void (*stop)(struct iwl_priv *priv); void (*config)(struct iwl_priv *priv); int (*set_pwr_src)(struct iwl_priv *priv, enum iwl_pwr_src src); } apm_ops; -- 2.39.5