iwlwifi: update copyright year to 2009

[mv-sheeva.git] / drivers / net / wireless / iwlwifi / iwl-eeprom.c

diff --git a/drivers/net/wireless/iwlwifi/iwl-eeprom.c b/drivers/net/wireless/iwlwifi/iwl-eeprom.c
index 37155755efc596bb51d3dc395374bf40a533b086..c8afcd1ed2c9691c0d5d63ec4ea8d1229d3c96f0 100644 (file)
--- a/drivers/net/wireless/iwlwifi/iwl-eeprom.c
+++ b/drivers/net/wireless/iwlwifi/iwl-eeprom.c
@@ -5,7 +5,7 @@
  *
  * GPL LICENSE SUMMARY
  *
- * Copyright(c) 2008 Intel Corporation. All rights reserved.
+ * Copyright(c) 2008 - 2009 Intel Corporation. All rights reserved.
  *
  * This program is free software; you can redistribute it and/or modify
  * it under the terms of version 2 of the GNU General Public License as
@@ -25,12 +25,12 @@
  * in the file called LICENSE.GPL.
  *
  * Contact Information:
- * Tomas Winkler <tomas.winkler@intel.com>
+ *  Intel Linux Wireless <ilw@linux.intel.com>
  * Intel Corporation, 5200 N.E. Elam Young Parkway, Hillsboro, OR 97124-6497
  *
  * BSD LICENSE
  *
- * Copyright(c) 2005 - 2008 Intel Corporation. All rights reserved.
+ * Copyright(c) 2005 - 2009 Intel Corporation. All rights reserved.
  * All rights reserved.
  *
  * Redistribution and use in source and binary forms, with or without
@@ -145,7 +145,7 @@ int iwlcore_eeprom_verify_signature(struct iwl_priv *priv)
 {
        u32 gp = iwl_read32(priv, CSR_EEPROM_GP);
        if ((gp & CSR_EEPROM_GP_VALID_MSK) == CSR_EEPROM_GP_BAD_SIGNATURE) {
-               IWL_ERROR("EEPROM not found, EEPROM_GP=0x%08x\n", gp);
+               IWL_ERR(priv, "EEPROM not found, EEPROM_GP=0x%08x\n", gp);
                return -ENOENT;
        }
        return 0;
@@ -169,10 +169,9 @@ int iwlcore_eeprom_acquire_semaphore(struct iwl_priv *priv)
                            CSR_HW_IF_CONFIG_REG_BIT_EEPROM_OWN_SEM);
 
                /* See if we got it */
-               ret = iwl_poll_bit(priv, CSR_HW_IF_CONFIG_REG,
-                                  CSR_HW_IF_CONFIG_REG_BIT_EEPROM_OWN_SEM,
-                                  CSR_HW_IF_CONFIG_REG_BIT_EEPROM_OWN_SEM,
-                                  EEPROM_SEM_TIMEOUT);
+               ret = iwl_poll_direct_bit(priv, CSR_HW_IF_CONFIG_REG,
+                               CSR_HW_IF_CONFIG_REG_BIT_EEPROM_OWN_SEM,
+                               EEPROM_SEM_TIMEOUT);
                if (ret >= 0) {
                        IWL_DEBUG_IO("Acquired semaphore after %d tries.\n",
                                count+1);
@@ -210,10 +209,8 @@ int iwl_eeprom_init(struct iwl_priv *priv)
 {
        u16 *e;
        u32 gp = iwl_read32(priv, CSR_EEPROM_GP);
-       u32 r;
        int sz = priv->cfg->eeprom_size;
        int ret;
-       int i;
        u16 addr;
 
        /* allocate eeprom */
@@ -226,7 +223,7 @@ int iwl_eeprom_init(struct iwl_priv *priv)
 
        ret = priv->cfg->ops->lib->eeprom_ops.verify_signature(priv);
        if (ret < 0) {
-               IWL_ERROR("EEPROM not found, EEPROM_GP=0x%08x\n", gp);
+               IWL_ERR(priv, "EEPROM not found, EEPROM_GP=0x%08x\n", gp);
                ret = -ENOENT;
                goto err;
        }
@@ -234,29 +231,26 @@ int iwl_eeprom_init(struct iwl_priv *priv)
        /* Make sure driver (instead of uCode) is allowed to read EEPROM */
        ret = priv->cfg->ops->lib->eeprom_ops.acquire_semaphore(priv);
        if (ret < 0) {
-               IWL_ERROR("Failed to acquire EEPROM semaphore.\n");
+               IWL_ERR(priv, "Failed to acquire EEPROM semaphore.\n");
                ret = -ENOENT;
                goto err;
        }
 
        /* eeprom is an array of 16bit values */
        for (addr = 0; addr < sz; addr += sizeof(u16)) {
-               _iwl_write32(priv, CSR_EEPROM_REG, addr << 1);
-               _iwl_clear_bit(priv, CSR_EEPROM_REG, CSR_EEPROM_REG_BIT_CMD);
-
-               for (i = 0; i < IWL_EEPROM_ACCESS_TIMEOUT;
-                                       i += IWL_EEPROM_ACCESS_DELAY) {
-                       r = _iwl_read_direct32(priv, CSR_EEPROM_REG);
-                       if (r & CSR_EEPROM_REG_READ_VALID_MSK)
-                               break;
-                       udelay(IWL_EEPROM_ACCESS_DELAY);
-               }
+               u32 r;
+
+               _iwl_write32(priv, CSR_EEPROM_REG,
+                            CSR_EEPROM_REG_MSK_ADDR & (addr << 1));
 
-               if (!(r & CSR_EEPROM_REG_READ_VALID_MSK)) {
-                       IWL_ERROR("Time out reading EEPROM[%d]\n", addr);
-                       ret = -ETIMEDOUT;
+               ret = iwl_poll_direct_bit(priv, CSR_EEPROM_REG,
+                                         CSR_EEPROM_REG_READ_VALID_MSK,
+                                         IWL_EEPROM_ACCESS_TIMEOUT);
+               if (ret < 0) {
+                       IWL_ERR(priv, "Time out reading EEPROM[%d]\n", addr);
                        goto done;
                }
+               r = _iwl_read_direct32(priv, CSR_EEPROM_REG);
                e[addr / 2] = le16_to_cpu((__force __le16)(r >> 16));
        }
        ret = 0;
@@ -279,7 +273,23 @@ EXPORT_SYMBOL(iwl_eeprom_free);
 
 int iwl_eeprom_check_version(struct iwl_priv *priv)
 {
-       return priv->cfg->ops->lib->eeprom_ops.check_version(priv);
+       u16 eeprom_ver;
+       u16 calib_ver;
+
+       eeprom_ver = iwl_eeprom_query16(priv, EEPROM_VERSION);
+       calib_ver = priv->cfg->ops->lib->eeprom_ops.calib_version(priv);
+
+       if (eeprom_ver < priv->cfg->eeprom_ver ||
+           calib_ver < priv->cfg->eeprom_calib_ver)
+               goto err;
+
+       return 0;
+err:
+       IWL_ERR(priv, "Unsupported EEPROM VER=0x%x < 0x%x CALIB=0x%x < 0x%x\n",
+                 eeprom_ver, priv->cfg->eeprom_ver,
+                 calib_ver,  priv->cfg->eeprom_calib_ver);
+       return -EINVAL;
+
 }
 EXPORT_SYMBOL(iwl_eeprom_check_version);
 
@@ -440,7 +450,7 @@ int iwl_init_channel_map(struct iwl_priv *priv)
        priv->channel_info = kzalloc(sizeof(struct iwl_channel_info) *
                                     priv->channel_count, GFP_KERNEL);
        if (!priv->channel_info) {
-               IWL_ERROR("Could not allocate channel_info\n");
+               IWL_ERR(priv, "Could not allocate channel_info\n");
                priv->channel_count = 0;
                return -ENOMEM;
        }