iwlwifi: move iwl4965_init_alive_start to iwl-4965.c

This patch moves iwl_4965_init_alive_start to iwl-4965.c.

Signed-off-by: Emmanuel Grumbach <emmanuel.grumbach@intel.com>
Signed-off-by: Tomas Winkler <tomas.winkler@intel.com>
Signed-off-by: John W. Linville <linville@tuxdriver.com>

1 files changed, 97 insertions, 0 deletions

diff --git a/drivers/net/wireless/iwlwifi/iwl-4965.c b/drivers/net/wireless/iwlwifi/iwl-4965.c
index 319ffe747a7..f56b9a91d78 100644
--- a/drivers/net/wireless/iwlwifi/iwl-4965.c
+++ b/drivers/net/wireless/iwlwifi/iwl-4965.c
@@ -222,6 +222,102 @@ static int iwl4965_load_bsm(struct iwl_priv *priv)
 	return 0;
 }
 
+/**
+ * iwl4965_set_ucode_ptrs - Set uCode address location
+ *
+ * Tell initialization uCode where to find runtime uCode.
+ *
+ * BSM registers initially contain pointers to initialization uCode.
+ * We need to replace them to load runtime uCode inst and data,
+ * and to save runtime data when powering down.
+ */
+static int iwl4965_set_ucode_ptrs(struct iwl_priv *priv)
+{
+	dma_addr_t pinst;
+	dma_addr_t pdata;
+	unsigned long flags;
+	int ret = 0;
+
+	/* bits 35:4 for 4965 */
+	pinst = priv->ucode_code.p_addr >> 4;
+	pdata = priv->ucode_data_backup.p_addr >> 4;
+
+	spin_lock_irqsave(&priv->lock, flags);
+	ret = iwl_grab_nic_access(priv);
+	if (ret) {
+		spin_unlock_irqrestore(&priv->lock, flags);
+		return ret;
+	}
+
+	/* Tell bootstrap uCode where to find image to load */
+	iwl_write_prph(priv, BSM_DRAM_INST_PTR_REG, pinst);
+	iwl_write_prph(priv, BSM_DRAM_DATA_PTR_REG, pdata);
+	iwl_write_prph(priv, BSM_DRAM_DATA_BYTECOUNT_REG,
+				 priv->ucode_data.len);
+
+	/* Inst bytecount must be last to set up, bit 31 signals uCode
+	 *   that all new ptr/size info is in place */
+	iwl_write_prph(priv, BSM_DRAM_INST_BYTECOUNT_REG,
+				 priv->ucode_code.len | BSM_DRAM_INST_LOAD);
+	iwl_release_nic_access(priv);
+
+	spin_unlock_irqrestore(&priv->lock, flags);
+
+	IWL_DEBUG_INFO("Runtime uCode pointers are set.\n");
+
+	return ret;
+}
+
+/**
+ * iwl4965_init_alive_start - Called after REPLY_ALIVE notification received
+ *
+ * Called after REPLY_ALIVE notification received from "initialize" uCode.
+ *
+ * The 4965 "initialize" ALIVE reply contains calibration data for:
+ *   Voltage, temperature, and MIMO tx gain correction, now stored in priv
+ *   (3945 does not contain this data).
+ *
+ * Tell "initialize" uCode to go ahead and load the runtime uCode.
+*/
+static void iwl4965_init_alive_start(struct iwl_priv *priv)
+{
+	/* Check alive response for "valid" sign from uCode */
+	if (priv->card_alive_init.is_valid != UCODE_VALID_OK) {
+		/* We had an error bringing up the hardware, so take it
+		 * all the way back down so we can try again */
+		IWL_DEBUG_INFO("Initialize Alive failed.\n");
+		goto restart;
+	}
+
+	/* Bootstrap uCode has loaded initialize uCode ... verify inst image.
+	 * This is a paranoid check, because we would not have gotten the
+	 * "initialize" alive if code weren't properly loaded.  */
+	if (iwl_verify_ucode(priv)) {
+		/* Runtime instruction load was bad;
+		 * take it all the way back down so we can try again */
+		IWL_DEBUG_INFO("Bad \"initialize\" uCode load.\n");
+		goto restart;
+	}
+
+	/* Calculate temperature */
+	priv->temperature = iwl4965_get_temperature(priv);
+
+	/* Send pointers to protocol/runtime uCode image ... init code will
+	 * load and launch runtime uCode, which will send us another "Alive"
+	 * notification. */
+	IWL_DEBUG_INFO("Initialization Alive received.\n");
+	if (iwl4965_set_ucode_ptrs(priv)) {
+		/* Runtime instruction load won't happen;
+		 * take it all the way back down so we can try again */
+		IWL_DEBUG_INFO("Couldn't set up uCode pointers.\n");
+		goto restart;
+	}
+	return;
+
+restart:
+	queue_work(priv->workqueue, &priv->restart);
+}
+
 static int is_fat_channel(__le32 rxon_flags)
 {
 	return (rxon_flags & RXON_FLG_CHANNEL_MODE_PURE_40_MSK) ||
@@ -3724,6 +3820,7 @@ static struct iwl_lib_ops iwl4965_lib = {
 	.rx_handler_setup = iwl4965_rx_handler_setup,
 	.is_valid_rtc_data_addr = iwl4965_hw_valid_rtc_data_addr,
 	.alive_notify = iwl4965_alive_notify,
+	.init_alive_start = iwl4965_init_alive_start,
 	.load_ucode = iwl4965_load_bsm,
 	.apm_ops = {
 		.init = iwl4965_apm_init,