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Diffstat (limited to 'drivers/net/wireless/iwlegacy/iwl-eeprom.c')
-rw-r--r--drivers/net/wireless/iwlegacy/iwl-eeprom.c553
1 files changed, 0 insertions, 553 deletions
diff --git a/drivers/net/wireless/iwlegacy/iwl-eeprom.c b/drivers/net/wireless/iwlegacy/iwl-eeprom.c
deleted file mode 100644
index 5bf3f49b74ab..000000000000
--- a/drivers/net/wireless/iwlegacy/iwl-eeprom.c
+++ /dev/null
@@ -1,553 +0,0 @@
-/******************************************************************************
- *
- * This file is provided under a dual BSD/GPLv2 license. When using or
- * redistributing this file, you may do so under either license.
- *
- * GPL LICENSE SUMMARY
- *
- * Copyright(c) 2008 - 2011 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
- * published by the Free Software Foundation.
- *
- * This program is distributed in the hope that it will be useful, but
- * WITHOUT ANY WARRANTY; without even the implied warranty of
- * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
- * General Public License for more details.
- *
- * You should have received a copy of the GNU General Public License
- * along with this program; if not, write to the Free Software
- * Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110,
- * USA
- *
- * The full GNU General Public License is included in this distribution
- * in the file called LICENSE.GPL.
- *
- * Contact Information:
- * Intel Linux Wireless <ilw@linux.intel.com>
- * Intel Corporation, 5200 N.E. Elam Young Parkway, Hillsboro, OR 97124-6497
- *
- * BSD LICENSE
- *
- * Copyright(c) 2005 - 2011 Intel Corporation. All rights reserved.
- * All rights reserved.
- *
- * Redistribution and use in source and binary forms, with or without
- * modification, are permitted provided that the following conditions
- * are met:
- *
- * * Redistributions of source code must retain the above copyright
- * notice, this list of conditions and the following disclaimer.
- * * Redistributions in binary form must reproduce the above copyright
- * notice, this list of conditions and the following disclaimer in
- * the documentation and/or other materials provided with the
- * distribution.
- * * Neither the name Intel Corporation nor the names of its
- * contributors may be used to endorse or promote products derived
- * from this software without specific prior written permission.
- *
- * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
- * "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
- * LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR
- * A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT
- * OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
- * SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT
- * LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
- * DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
- * THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
- * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
- * OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
- *****************************************************************************/
-
-
-#include <linux/kernel.h>
-#include <linux/module.h>
-#include <linux/slab.h>
-#include <linux/init.h>
-
-#include <net/mac80211.h>
-
-#include "iwl-commands.h"
-#include "iwl-dev.h"
-#include "iwl-core.h"
-#include "iwl-debug.h"
-#include "iwl-eeprom.h"
-#include "iwl-io.h"
-
-/************************** EEPROM BANDS ****************************
- *
- * The iwlegacy_eeprom_band definitions below provide the mapping from the
- * EEPROM contents to the specific channel number supported for each
- * band.
- *
- * For example, iwl_priv->eeprom.band_3_channels[4] from the band_3
- * definition below maps to physical channel 42 in the 5.2GHz spectrum.
- * The specific geography and calibration information for that channel
- * is contained in the eeprom map itself.
- *
- * During init, we copy the eeprom information and channel map
- * information into priv->channel_info_24/52 and priv->channel_map_24/52
- *
- * channel_map_24/52 provides the index in the channel_info array for a
- * given channel. We have to have two separate maps as there is channel
- * overlap with the 2.4GHz and 5.2GHz spectrum as seen in band_1 and
- * band_2
- *
- * A value of 0xff stored in the channel_map indicates that the channel
- * is not supported by the hardware at all.
- *
- * A value of 0xfe in the channel_map indicates that the channel is not
- * valid for Tx with the current hardware. This means that
- * while the system can tune and receive on a given channel, it may not
- * be able to associate or transmit any frames on that
- * channel. There is no corresponding channel information for that
- * entry.
- *
- *********************************************************************/
-
-/* 2.4 GHz */
-const u8 iwlegacy_eeprom_band_1[14] = {
- 1, 2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13, 14
-};
-
-/* 5.2 GHz bands */
-static const u8 iwlegacy_eeprom_band_2[] = { /* 4915-5080MHz */
- 183, 184, 185, 187, 188, 189, 192, 196, 7, 8, 11, 12, 16
-};
-
-static const u8 iwlegacy_eeprom_band_3[] = { /* 5170-5320MHz */
- 34, 36, 38, 40, 42, 44, 46, 48, 52, 56, 60, 64
-};
-
-static const u8 iwlegacy_eeprom_band_4[] = { /* 5500-5700MHz */
- 100, 104, 108, 112, 116, 120, 124, 128, 132, 136, 140
-};
-
-static const u8 iwlegacy_eeprom_band_5[] = { /* 5725-5825MHz */
- 145, 149, 153, 157, 161, 165
-};
-
-static const u8 iwlegacy_eeprom_band_6[] = { /* 2.4 ht40 channel */
- 1, 2, 3, 4, 5, 6, 7
-};
-
-static const u8 iwlegacy_eeprom_band_7[] = { /* 5.2 ht40 channel */
- 36, 44, 52, 60, 100, 108, 116, 124, 132, 149, 157
-};
-
-/******************************************************************************
- *
- * EEPROM related functions
- *
-******************************************************************************/
-
-static int iwl_legacy_eeprom_verify_signature(struct iwl_priv *priv)
-{
- u32 gp = iwl_read32(priv, CSR_EEPROM_GP) & CSR_EEPROM_GP_VALID_MSK;
- int ret = 0;
-
- IWL_DEBUG_EEPROM(priv, "EEPROM signature=0x%08x\n", gp);
- switch (gp) {
- case CSR_EEPROM_GP_GOOD_SIG_EEP_LESS_THAN_4K:
- case CSR_EEPROM_GP_GOOD_SIG_EEP_MORE_THAN_4K:
- break;
- default:
- IWL_ERR(priv, "bad EEPROM signature,"
- "EEPROM_GP=0x%08x\n", gp);
- ret = -ENOENT;
- break;
- }
- return ret;
-}
-
-const u8
-*iwl_legacy_eeprom_query_addr(const struct iwl_priv *priv, size_t offset)
-{
- BUG_ON(offset >= priv->cfg->base_params->eeprom_size);
- return &priv->eeprom[offset];
-}
-EXPORT_SYMBOL(iwl_legacy_eeprom_query_addr);
-
-u16 iwl_legacy_eeprom_query16(const struct iwl_priv *priv, size_t offset)
-{
- if (!priv->eeprom)
- return 0;
- return (u16)priv->eeprom[offset] | ((u16)priv->eeprom[offset + 1] << 8);
-}
-EXPORT_SYMBOL(iwl_legacy_eeprom_query16);
-
-/**
- * iwl_legacy_eeprom_init - read EEPROM contents
- *
- * Load the EEPROM contents from adapter into priv->eeprom
- *
- * NOTE: This routine uses the non-debug IO access functions.
- */
-int iwl_legacy_eeprom_init(struct iwl_priv *priv)
-{
- __le16 *e;
- u32 gp = iwl_read32(priv, CSR_EEPROM_GP);
- int sz;
- int ret;
- u16 addr;
-
- /* allocate eeprom */
- sz = priv->cfg->base_params->eeprom_size;
- IWL_DEBUG_EEPROM(priv, "NVM size = %d\n", sz);
- priv->eeprom = kzalloc(sz, GFP_KERNEL);
- if (!priv->eeprom) {
- ret = -ENOMEM;
- goto alloc_err;
- }
- e = (__le16 *)priv->eeprom;
-
- priv->cfg->ops->lib->apm_ops.init(priv);
-
- ret = iwl_legacy_eeprom_verify_signature(priv);
- if (ret < 0) {
- IWL_ERR(priv, "EEPROM not found, EEPROM_GP=0x%08x\n", gp);
- ret = -ENOENT;
- goto err;
- }
-
- /* 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_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)) {
- u32 r;
-
- _iwl_legacy_write32(priv, CSR_EEPROM_REG,
- CSR_EEPROM_REG_MSK_ADDR & (addr << 1));
-
- ret = iwl_poll_bit(priv, CSR_EEPROM_REG,
- CSR_EEPROM_REG_READ_VALID_MSK,
- 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_legacy_read_direct32(priv, CSR_EEPROM_REG);
- e[addr / 2] = cpu_to_le16(r >> 16);
- }
-
- IWL_DEBUG_EEPROM(priv, "NVM Type: %s, version: 0x%x\n",
- "EEPROM",
- iwl_legacy_eeprom_query16(priv, EEPROM_VERSION));
-
- ret = 0;
-done:
- priv->cfg->ops->lib->eeprom_ops.release_semaphore(priv);
-
-err:
- if (ret)
- iwl_legacy_eeprom_free(priv);
- /* Reset chip to save power until we load uCode during "up". */
- iwl_legacy_apm_stop(priv);
-alloc_err:
- return ret;
-}
-EXPORT_SYMBOL(iwl_legacy_eeprom_init);
-
-void iwl_legacy_eeprom_free(struct iwl_priv *priv)
-{
- kfree(priv->eeprom);
- priv->eeprom = NULL;
-}
-EXPORT_SYMBOL(iwl_legacy_eeprom_free);
-
-static void iwl_legacy_init_band_reference(const struct iwl_priv *priv,
- int eep_band, int *eeprom_ch_count,
- const struct iwl_eeprom_channel **eeprom_ch_info,
- const u8 **eeprom_ch_index)
-{
- u32 offset = priv->cfg->ops->lib->
- eeprom_ops.regulatory_bands[eep_band - 1];
- switch (eep_band) {
- case 1: /* 2.4GHz band */
- *eeprom_ch_count = ARRAY_SIZE(iwlegacy_eeprom_band_1);
- *eeprom_ch_info = (struct iwl_eeprom_channel *)
- iwl_legacy_eeprom_query_addr(priv, offset);
- *eeprom_ch_index = iwlegacy_eeprom_band_1;
- break;
- case 2: /* 4.9GHz band */
- *eeprom_ch_count = ARRAY_SIZE(iwlegacy_eeprom_band_2);
- *eeprom_ch_info = (struct iwl_eeprom_channel *)
- iwl_legacy_eeprom_query_addr(priv, offset);
- *eeprom_ch_index = iwlegacy_eeprom_band_2;
- break;
- case 3: /* 5.2GHz band */
- *eeprom_ch_count = ARRAY_SIZE(iwlegacy_eeprom_band_3);
- *eeprom_ch_info = (struct iwl_eeprom_channel *)
- iwl_legacy_eeprom_query_addr(priv, offset);
- *eeprom_ch_index = iwlegacy_eeprom_band_3;
- break;
- case 4: /* 5.5GHz band */
- *eeprom_ch_count = ARRAY_SIZE(iwlegacy_eeprom_band_4);
- *eeprom_ch_info = (struct iwl_eeprom_channel *)
- iwl_legacy_eeprom_query_addr(priv, offset);
- *eeprom_ch_index = iwlegacy_eeprom_band_4;
- break;
- case 5: /* 5.7GHz band */
- *eeprom_ch_count = ARRAY_SIZE(iwlegacy_eeprom_band_5);
- *eeprom_ch_info = (struct iwl_eeprom_channel *)
- iwl_legacy_eeprom_query_addr(priv, offset);
- *eeprom_ch_index = iwlegacy_eeprom_band_5;
- break;
- case 6: /* 2.4GHz ht40 channels */
- *eeprom_ch_count = ARRAY_SIZE(iwlegacy_eeprom_band_6);
- *eeprom_ch_info = (struct iwl_eeprom_channel *)
- iwl_legacy_eeprom_query_addr(priv, offset);
- *eeprom_ch_index = iwlegacy_eeprom_band_6;
- break;
- case 7: /* 5 GHz ht40 channels */
- *eeprom_ch_count = ARRAY_SIZE(iwlegacy_eeprom_band_7);
- *eeprom_ch_info = (struct iwl_eeprom_channel *)
- iwl_legacy_eeprom_query_addr(priv, offset);
- *eeprom_ch_index = iwlegacy_eeprom_band_7;
- break;
- default:
- BUG();
- }
-}
-
-#define CHECK_AND_PRINT(x) ((eeprom_ch->flags & EEPROM_CHANNEL_##x) \
- ? # x " " : "")
-/**
- * iwl_legacy_mod_ht40_chan_info - Copy ht40 channel info into driver's priv.
- *
- * Does not set up a command, or touch hardware.
- */
-static int iwl_legacy_mod_ht40_chan_info(struct iwl_priv *priv,
- enum ieee80211_band band, u16 channel,
- const struct iwl_eeprom_channel *eeprom_ch,
- u8 clear_ht40_extension_channel)
-{
- struct iwl_channel_info *ch_info;
-
- ch_info = (struct iwl_channel_info *)
- iwl_legacy_get_channel_info(priv, band, channel);
-
- if (!iwl_legacy_is_channel_valid(ch_info))
- return -1;
-
- IWL_DEBUG_EEPROM(priv, "HT40 Ch. %d [%sGHz] %s%s%s%s%s(0x%02x %ddBm):"
- " Ad-Hoc %ssupported\n",
- ch_info->channel,
- iwl_legacy_is_channel_a_band(ch_info) ?
- "5.2" : "2.4",
- CHECK_AND_PRINT(IBSS),
- CHECK_AND_PRINT(ACTIVE),
- CHECK_AND_PRINT(RADAR),
- CHECK_AND_PRINT(WIDE),
- CHECK_AND_PRINT(DFS),
- eeprom_ch->flags,
- eeprom_ch->max_power_avg,
- ((eeprom_ch->flags & EEPROM_CHANNEL_IBSS)
- && !(eeprom_ch->flags & EEPROM_CHANNEL_RADAR)) ?
- "" : "not ");
-
- ch_info->ht40_eeprom = *eeprom_ch;
- ch_info->ht40_max_power_avg = eeprom_ch->max_power_avg;
- ch_info->ht40_flags = eeprom_ch->flags;
- if (eeprom_ch->flags & EEPROM_CHANNEL_VALID)
- ch_info->ht40_extension_channel &=
- ~clear_ht40_extension_channel;
-
- return 0;
-}
-
-#define CHECK_AND_PRINT_I(x) ((eeprom_ch_info[ch].flags & EEPROM_CHANNEL_##x) \
- ? # x " " : "")
-
-/**
- * iwl_legacy_init_channel_map - Set up driver's info for all possible channels
- */
-int iwl_legacy_init_channel_map(struct iwl_priv *priv)
-{
- int eeprom_ch_count = 0;
- const u8 *eeprom_ch_index = NULL;
- const struct iwl_eeprom_channel *eeprom_ch_info = NULL;
- int band, ch;
- struct iwl_channel_info *ch_info;
-
- if (priv->channel_count) {
- IWL_DEBUG_EEPROM(priv, "Channel map already initialized.\n");
- return 0;
- }
-
- IWL_DEBUG_EEPROM(priv, "Initializing regulatory info from EEPROM\n");
-
- priv->channel_count =
- ARRAY_SIZE(iwlegacy_eeprom_band_1) +
- ARRAY_SIZE(iwlegacy_eeprom_band_2) +
- ARRAY_SIZE(iwlegacy_eeprom_band_3) +
- ARRAY_SIZE(iwlegacy_eeprom_band_4) +
- ARRAY_SIZE(iwlegacy_eeprom_band_5);
-
- IWL_DEBUG_EEPROM(priv, "Parsing data for %d channels.\n",
- priv->channel_count);
-
- priv->channel_info = kzalloc(sizeof(struct iwl_channel_info) *
- priv->channel_count, GFP_KERNEL);
- if (!priv->channel_info) {
- IWL_ERR(priv, "Could not allocate channel_info\n");
- priv->channel_count = 0;
- return -ENOMEM;
- }
-
- ch_info = priv->channel_info;
-
- /* Loop through the 5 EEPROM bands adding them in order to the
- * channel map we maintain (that contains additional information than
- * what just in the EEPROM) */
- for (band = 1; band <= 5; band++) {
-
- iwl_legacy_init_band_reference(priv, band, &eeprom_ch_count,
- &eeprom_ch_info, &eeprom_ch_index);
-
- /* Loop through each band adding each of the channels */
- for (ch = 0; ch < eeprom_ch_count; ch++) {
- ch_info->channel = eeprom_ch_index[ch];
- ch_info->band = (band == 1) ? IEEE80211_BAND_2GHZ :
- IEEE80211_BAND_5GHZ;
-
- /* permanently store EEPROM's channel regulatory flags
- * and max power in channel info database. */
- ch_info->eeprom = eeprom_ch_info[ch];
-
- /* Copy the run-time flags so they are there even on
- * invalid channels */
- ch_info->flags = eeprom_ch_info[ch].flags;
- /* First write that ht40 is not enabled, and then enable
- * one by one */
- ch_info->ht40_extension_channel =
- IEEE80211_CHAN_NO_HT40;
-
- if (!(iwl_legacy_is_channel_valid(ch_info))) {
- IWL_DEBUG_EEPROM(priv,
- "Ch. %d Flags %x [%sGHz] - "
- "No traffic\n",
- ch_info->channel,
- ch_info->flags,
- iwl_legacy_is_channel_a_band(ch_info) ?
- "5.2" : "2.4");
- ch_info++;
- continue;
- }
-
- /* Initialize regulatory-based run-time data */
- ch_info->max_power_avg = ch_info->curr_txpow =
- eeprom_ch_info[ch].max_power_avg;
- ch_info->scan_power = eeprom_ch_info[ch].max_power_avg;
- ch_info->min_power = 0;
-
- IWL_DEBUG_EEPROM(priv, "Ch. %d [%sGHz] "
- "%s%s%s%s%s%s(0x%02x %ddBm):"
- " Ad-Hoc %ssupported\n",
- ch_info->channel,
- iwl_legacy_is_channel_a_band(ch_info) ?
- "5.2" : "2.4",
- CHECK_AND_PRINT_I(VALID),
- CHECK_AND_PRINT_I(IBSS),
- CHECK_AND_PRINT_I(ACTIVE),
- CHECK_AND_PRINT_I(RADAR),
- CHECK_AND_PRINT_I(WIDE),
- CHECK_AND_PRINT_I(DFS),
- eeprom_ch_info[ch].flags,
- eeprom_ch_info[ch].max_power_avg,
- ((eeprom_ch_info[ch].
- flags & EEPROM_CHANNEL_IBSS)
- && !(eeprom_ch_info[ch].
- flags & EEPROM_CHANNEL_RADAR))
- ? "" : "not ");
-
- ch_info++;
- }
- }
-
- /* Check if we do have HT40 channels */
- if (priv->cfg->ops->lib->eeprom_ops.regulatory_bands[5] ==
- EEPROM_REGULATORY_BAND_NO_HT40 &&
- priv->cfg->ops->lib->eeprom_ops.regulatory_bands[6] ==
- EEPROM_REGULATORY_BAND_NO_HT40)
- return 0;
-
- /* Two additional EEPROM bands for 2.4 and 5 GHz HT40 channels */
- for (band = 6; band <= 7; band++) {
- enum ieee80211_band ieeeband;
-
- iwl_legacy_init_band_reference(priv, band, &eeprom_ch_count,
- &eeprom_ch_info, &eeprom_ch_index);
-
- /* EEPROM band 6 is 2.4, band 7 is 5 GHz */
- ieeeband =
- (band == 6) ? IEEE80211_BAND_2GHZ : IEEE80211_BAND_5GHZ;
-
- /* Loop through each band adding each of the channels */
- for (ch = 0; ch < eeprom_ch_count; ch++) {
- /* Set up driver's info for lower half */
- iwl_legacy_mod_ht40_chan_info(priv, ieeeband,
- eeprom_ch_index[ch],
- &eeprom_ch_info[ch],
- IEEE80211_CHAN_NO_HT40PLUS);
-
- /* Set up driver's info for upper half */
- iwl_legacy_mod_ht40_chan_info(priv, ieeeband,
- eeprom_ch_index[ch] + 4,
- &eeprom_ch_info[ch],
- IEEE80211_CHAN_NO_HT40MINUS);
- }
- }
-
- return 0;
-}
-EXPORT_SYMBOL(iwl_legacy_init_channel_map);
-
-/*
- * iwl_legacy_free_channel_map - undo allocations in iwl_legacy_init_channel_map
- */
-void iwl_legacy_free_channel_map(struct iwl_priv *priv)
-{
- kfree(priv->channel_info);
- priv->channel_count = 0;
-}
-EXPORT_SYMBOL(iwl_legacy_free_channel_map);
-
-/**
- * iwl_legacy_get_channel_info - Find driver's private channel info
- *
- * Based on band and channel number.
- */
-const struct
-iwl_channel_info *iwl_legacy_get_channel_info(const struct iwl_priv *priv,
- enum ieee80211_band band, u16 channel)
-{
- int i;
-
- switch (band) {
- case IEEE80211_BAND_5GHZ:
- for (i = 14; i < priv->channel_count; i++) {
- if (priv->channel_info[i].channel == channel)
- return &priv->channel_info[i];
- }
- break;
- case IEEE80211_BAND_2GHZ:
- if (channel >= 1 && channel <= 14)
- return &priv->channel_info[channel - 1];
- break;
- default:
- BUG();
- }
-
- return NULL;
-}
-EXPORT_SYMBOL(iwl_legacy_get_channel_info);