Commit e6148917 authored by Samuel Ortiz's avatar Samuel Ortiz Committed by John W. Linville
Browse files

iwl3945: Use iwl-eeprom.c routines



By adding the eeprom ops to the 3945 code, we can now use the iwlcore eeprom
routines (defined in iwl-eeprom.c).
We also removed the heavy eeprom39 reference from iwl_priv and use the eeprom
pointer instead.
Signed-off-by: default avatarSamuel Ortiz <samuel.ortiz@intel.com>
Signed-off-by: default avatarReinette Chatre <reinette.chatre@intel.com>
Signed-off-by: default avatarJohn W. Linville <linville@tuxdriver.com>
parent a8e74e27
......@@ -182,7 +182,7 @@ struct iwl3945_eeprom {
* 2.4 GHz channels 1, 2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13, 14
*/
u16 band_1_count; /* abs.ofs: 196 */
struct iwl_eeprom_channel band_1_channels[14]; /* abs.ofs: 196 */
struct iwl_eeprom_channel band_1_channels[14]; /* abs.ofs: 198 */
/*
* 4.9 GHz channels 183, 184, 185, 187, 188, 189, 192, 196,
......@@ -225,7 +225,7 @@ struct iwl3945_eeprom {
u8 reserved16[172]; /* fill out to full 1024 byte block */
} __attribute__ ((packed));
#define IWL_EEPROM_IMAGE_SIZE 1024
#define IWL3945_EEPROM_IMG_SIZE 1024
/* End of EEPROM */
......
......@@ -42,6 +42,7 @@
#include "iwl-3945-fh.h"
#include "iwl-commands.h"
#include "iwl-3945.h"
#include "iwl-eeprom.h"
#include "iwl-helpers.h"
#include "iwl-core.h"
#include "iwl-agn-rs.h"
......@@ -209,17 +210,19 @@ static int iwl3945_hwrate_to_plcp_idx(u8 plcp)
*/
__le32 iwl3945_get_antenna_flags(const struct iwl_priv *priv)
{
struct iwl3945_eeprom *eeprom = (struct iwl3945_eeprom *)priv->eeprom;
switch (priv->antenna) {
case IWL_ANTENNA_DIVERSITY:
return 0;
case IWL_ANTENNA_MAIN:
if (priv->eeprom39.antenna_switch_type)
if (eeprom->antenna_switch_type)
return RXON_FLG_DIS_DIV_MSK | RXON_FLG_ANT_B_MSK;
return RXON_FLG_DIS_DIV_MSK | RXON_FLG_ANT_A_MSK;
case IWL_ANTENNA_AUX:
if (priv->eeprom39.antenna_switch_type)
if (eeprom->antenna_switch_type)
return RXON_FLG_DIS_DIV_MSK | RXON_FLG_ANT_A_MSK;
return RXON_FLG_DIS_DIV_MSK | RXON_FLG_ANT_B_MSK;
}
......@@ -1128,6 +1131,7 @@ out:
static void iwl3945_nic_config(struct iwl_priv *priv)
{
struct iwl3945_eeprom *eeprom = (struct iwl3945_eeprom *)priv->eeprom;
unsigned long flags;
u8 rev_id = 0;
......@@ -1145,42 +1149,42 @@ static void iwl3945_nic_config(struct iwl_priv *priv)
CSR39_HW_IF_CONFIG_REG_BIT_3945_MM);
}
if (EEPROM_SKU_CAP_OP_MODE_MRC == priv->eeprom39.sku_cap) {
if (EEPROM_SKU_CAP_OP_MODE_MRC == eeprom->sku_cap) {
IWL_DEBUG_INFO("SKU OP mode is mrc\n");
iwl_set_bit(priv, CSR_HW_IF_CONFIG_REG,
CSR39_HW_IF_CONFIG_REG_BIT_SKU_MRC);
} else
IWL_DEBUG_INFO("SKU OP mode is basic\n");
if ((priv->eeprom39.board_revision & 0xF0) == 0xD0) {
if ((eeprom->board_revision & 0xF0) == 0xD0) {
IWL_DEBUG_INFO("3945ABG revision is 0x%X\n",
priv->eeprom39.board_revision);
eeprom->board_revision);
iwl_set_bit(priv, CSR_HW_IF_CONFIG_REG,
CSR39_HW_IF_CONFIG_REG_BIT_BOARD_TYPE);
} else {
IWL_DEBUG_INFO("3945ABG revision is 0x%X\n",
priv->eeprom39.board_revision);
eeprom->board_revision);
iwl_clear_bit(priv, CSR_HW_IF_CONFIG_REG,
CSR39_HW_IF_CONFIG_REG_BIT_BOARD_TYPE);
}
if (priv->eeprom39.almgor_m_version <= 1) {
if (eeprom->almgor_m_version <= 1) {
iwl_set_bit(priv, CSR_HW_IF_CONFIG_REG,
CSR39_HW_IF_CONFIG_REG_BITS_SILICON_TYPE_A);
IWL_DEBUG_INFO("Card M type A version is 0x%X\n",
priv->eeprom39.almgor_m_version);
eeprom->almgor_m_version);
} else {
IWL_DEBUG_INFO("Card M type B version is 0x%X\n",
priv->eeprom39.almgor_m_version);
eeprom->almgor_m_version);
iwl_set_bit(priv, CSR_HW_IF_CONFIG_REG,
CSR39_HW_IF_CONFIG_REG_BITS_SILICON_TYPE_B);
}
spin_unlock_irqrestore(&priv->lock, flags);
if (priv->eeprom39.sku_cap & EEPROM_SKU_CAP_SW_RF_KILL_ENABLE)
if (eeprom->sku_cap & EEPROM_SKU_CAP_SW_RF_KILL_ENABLE)
IWL_DEBUG_RF_KILL("SW RF KILL supported in EEPROM.\n");
if (priv->eeprom39.sku_cap & EEPROM_SKU_CAP_HW_RF_KILL_ENABLE)
if (eeprom->sku_cap & EEPROM_SKU_CAP_HW_RF_KILL_ENABLE)
IWL_DEBUG_RF_KILL("HW RF KILL supported in EEPROM.\n");
}
......@@ -1406,6 +1410,7 @@ int iwl3945_hw_get_temperature(struct iwl_priv *priv)
*/
static int iwl3945_hw_reg_txpower_get_temperature(struct iwl_priv *priv)
{
struct iwl3945_eeprom *eeprom = (struct iwl3945_eeprom *)priv->eeprom;
int temperature;
temperature = iwl3945_hw_get_temperature(priv);
......@@ -1421,7 +1426,7 @@ static int iwl3945_hw_reg_txpower_get_temperature(struct iwl_priv *priv)
/* if really really hot(?),
* substitute the 3rd band/group's temp measured at factory */
if (priv->last_temperature > 100)
temperature = priv->eeprom39.groups[2].temperature;
temperature = eeprom->groups[2].temperature;
else /* else use most recent "sane" value from driver */
temperature = priv->last_temperature;
}
......@@ -1720,7 +1725,7 @@ int iwl3945_send_tx_power(struct iwl_priv *priv)
};
txpower.band = (priv->band == IEEE80211_BAND_5GHZ) ? 0 : 1;
ch_info = iwl3945_get_channel_info(priv,
ch_info = iwl_get_channel_info(priv,
priv->band,
le16_to_cpu(priv->active39_rxon.channel));
if (!ch_info) {
......@@ -1881,6 +1886,7 @@ static int iwl3945_hw_reg_get_ch_txpower_limit(struct iwl_channel_info *ch_info)
static int iwl3945_hw_reg_comp_txpower_temp(struct iwl_priv *priv)
{
struct iwl_channel_info *ch_info = NULL;
struct iwl3945_eeprom *eeprom = (struct iwl3945_eeprom *)priv->eeprom;
int delta_index;
const s8 *clip_pwrs; /* array of h/w max power levels for each rate */
u8 a_band;
......@@ -1896,7 +1902,7 @@ static int iwl3945_hw_reg_comp_txpower_temp(struct iwl_priv *priv)
a_band = is_channel_a_band(ch_info);
/* Get this chnlgrp's factory calibration temperature */
ref_temp = (s16)priv->eeprom39.groups[ch_info->group_index].
ref_temp = (s16)eeprom->groups[ch_info->group_index].
temperature;
/* get power index adjustment based on current and factory
......@@ -2041,7 +2047,8 @@ static void iwl3945_bg_reg_txpower_periodic(struct work_struct *work)
static u16 iwl3945_hw_reg_get_ch_grp_index(struct iwl_priv *priv,
const struct iwl_channel_info *ch_info)
{
struct iwl3945_eeprom_txpower_group *ch_grp = &priv->eeprom39.groups[0];
struct iwl3945_eeprom *eeprom = (struct iwl3945_eeprom *)priv->eeprom;
struct iwl3945_eeprom_txpower_group *ch_grp = &eeprom->groups[0];
u8 group;
u16 group_index = 0; /* based on factory calib frequencies */
u8 grp_channel;
......@@ -2077,6 +2084,7 @@ static int iwl3945_hw_reg_get_matched_power_index(struct iwl_priv *priv,
s32 setting_index, s32 *new_index)
{
const struct iwl3945_eeprom_txpower_group *chnl_grp = NULL;
struct iwl3945_eeprom *eeprom = (struct iwl3945_eeprom *)priv->eeprom;
s32 index0, index1;
s32 power = 2 * requested_power;
s32 i;
......@@ -2085,7 +2093,7 @@ static int iwl3945_hw_reg_get_matched_power_index(struct iwl_priv *priv,
s32 res;
s32 denominator;
chnl_grp = &priv->eeprom39.groups[setting_index];
chnl_grp = &eeprom->groups[setting_index];
samples = chnl_grp->samples;
for (i = 0; i < 5; i++) {
if (power == samples[i].power) {
......@@ -2124,6 +2132,7 @@ static void iwl3945_hw_reg_init_channel_groups(struct iwl_priv *priv)
{
u32 i;
s32 rate_index;
struct iwl3945_eeprom *eeprom = (struct iwl3945_eeprom *)priv->eeprom;
const struct iwl3945_eeprom_txpower_group *group;
IWL_DEBUG_POWER("Initializing factory calib info from EEPROM\n");
......@@ -2131,7 +2140,7 @@ static void iwl3945_hw_reg_init_channel_groups(struct iwl_priv *priv)
for (i = 0; i < IWL_NUM_TX_CALIB_GROUPS; i++) {
s8 *clip_pwrs; /* table of power levels for each rate */
s8 satur_pwr; /* saturation power for each chnl group */
group = &priv->eeprom39.groups[i];
group = &eeprom->groups[i];
/* sanity check on factory saturation power value */
if (group->saturation_power < 40) {
......@@ -2204,6 +2213,7 @@ int iwl3945_txpower_set_from_eeprom(struct iwl_priv *priv)
{
struct iwl_channel_info *ch_info = NULL;
struct iwl3945_channel_power_info *pwr_info;
struct iwl3945_eeprom *eeprom = (struct iwl3945_eeprom *)priv->eeprom;
int delta_index;
u8 rate_index;
u8 scan_tbl_index;
......@@ -2238,7 +2248,7 @@ int iwl3945_txpower_set_from_eeprom(struct iwl_priv *priv)
/* calculate power index *adjustment* value according to
* diff between current temperature and factory temperature */
delta_index = iwl3945_hw_reg_adjust_power_by_temp(temperature,
priv->eeprom39.groups[ch_info->group_index].
eeprom->groups[ch_info->group_index].
temperature);
IWL_DEBUG_POWER("Delta index for channel %d: %d [%d]\n",
......@@ -2585,6 +2595,33 @@ static int iwl3945_verify_bsm(struct iwl_priv *priv)
return 0;
}
/******************************************************************************
*
* EEPROM related functions
*
******************************************************************************/
/*
* Clear the OWNER_MSK, to establish driver (instead of uCode running on
* embedded controller) as EEPROM reader; each read is a series of pulses
* to/from the EEPROM chip, not a single event, so even reads could conflict
* if they weren't arbitrated by some ownership mechanism. Here, the driver
* simply claims ownership, which should be safe when this function is called
* (i.e. before loading uCode!).
*/
static int iwl3945_eeprom_acquire_semaphore(struct iwl_priv *priv)
{
_iwl_clear_bit(priv, CSR_EEPROM_GP, CSR_EEPROM_GP_IF_OWNER_MSK);
return 0;
}
static void iwl3945_eeprom_release_semaphore(struct iwl_priv *priv)
{
return;
}
/**
* iwl3945_load_bsm - Load bootstrap instructions
*
......@@ -2715,6 +2752,21 @@ static struct iwl_lib_ops iwl3945_lib = {
.config = iwl3945_nic_config,
.set_pwr_src = iwl3945_set_pwr_src,
},
.eeprom_ops = {
.regulatory_bands = {
EEPROM_REGULATORY_BAND_1_CHANNELS,
EEPROM_REGULATORY_BAND_2_CHANNELS,
EEPROM_REGULATORY_BAND_3_CHANNELS,
EEPROM_REGULATORY_BAND_4_CHANNELS,
EEPROM_REGULATORY_BAND_5_CHANNELS,
IWL3945_EEPROM_IMG_SIZE,
IWL3945_EEPROM_IMG_SIZE,
},
.verify_signature = iwlcore_eeprom_verify_signature,
.acquire_semaphore = iwl3945_eeprom_acquire_semaphore,
.release_semaphore = iwl3945_eeprom_release_semaphore,
.query_addr = iwlcore_eeprom_query_addr,
},
.send_tx_power = iwl3945_send_tx_power,
};
......@@ -2733,6 +2785,8 @@ static struct iwl_cfg iwl3945_bg_cfg = {
.ucode_api_max = IWL3945_UCODE_API_MAX,
.ucode_api_min = IWL3945_UCODE_API_MIN,
.sku = IWL_SKU_G,
.eeprom_size = IWL3945_EEPROM_IMG_SIZE,
.eeprom_ver = EEPROM_3945_EEPROM_VERSION,
.ops = &iwl3945_ops,
.mod_params = &iwl3945_mod_params
};
......@@ -2743,6 +2797,8 @@ static struct iwl_cfg iwl3945_abg_cfg = {
.ucode_api_max = IWL3945_UCODE_API_MAX,
.ucode_api_min = IWL3945_UCODE_API_MIN,
.sku = IWL_SKU_A|IWL_SKU_G,
.eeprom_size = IWL3945_EEPROM_IMG_SIZE,
.eeprom_ver = EEPROM_3945_EEPROM_VERSION,
.ops = &iwl3945_ops,
.mod_params = &iwl3945_mod_params
};
......
......@@ -1091,9 +1091,6 @@ struct iwl_priv {
struct iwl3945_station_entry stations_39[IWL_STATION_COUNT];
/* eeprom */
struct iwl3945_eeprom eeprom39;
u32 sta_supp_rates;
}; /*iwl_priv */
......
......@@ -531,6 +531,13 @@ int iwl_init_channel_map(struct iwl_priv *priv)
}
}
/* Check if we do have FAT channels */
if (priv->cfg->ops->lib->eeprom_ops.regulatory_bands[5] >=
priv->cfg->eeprom_size &&
priv->cfg->ops->lib->eeprom_ops.regulatory_bands[6] >=
priv->cfg->eeprom_size)
return 0;
/* Two additional EEPROM bands for 2.4 and 5 GHz FAT channels */
for (band = 6; band <= 7; band++) {
enum ieee80211_band ieeeband;
......@@ -582,6 +589,7 @@ void iwl_free_channel_map(struct iwl_priv *priv)
kfree(priv->channel_info);
priv->channel_count = 0;
}
EXPORT_SYMBOL(iwl_free_channel_map);
/**
* iwl_get_channel_info - Find driver's private channel info
......
......@@ -118,6 +118,9 @@ struct iwl_eeprom_channel {
s8 max_power_avg; /* max power (dBm) on this chnl, limit 31 */
} __attribute__ ((packed));
/* 3945 Specific */
#define EEPROM_3945_EEPROM_VERSION (0x2f)
/* 4965 has two radio transmitters (and 3 radio receivers) */
#define EEPROM_TX_POWER_TX_CHAINS (2)
......
......@@ -257,7 +257,7 @@ static int iwl3945_set_rxon_channel(struct iwl_priv *priv,
enum ieee80211_band band,
u16 channel)
{
if (!iwl3945_get_channel_info(priv, band, channel)) {
if (!iwl_get_channel_info(priv, band, channel)) {
IWL_DEBUG_INFO("Could not set channel to %d [%d]\n",
channel, band);
return -EINVAL;
......@@ -834,86 +834,6 @@ static int iwl3945_send_beacon_cmd(struct iwl_priv *priv)
return rc;
}
/******************************************************************************
*
* EEPROM related functions
*
******************************************************************************/
static void get_eeprom_mac(struct iwl_priv *priv, u8 *mac)
{
memcpy(mac, priv->eeprom39.mac_address, 6);
}
/*
* Clear the OWNER_MSK, to establish driver (instead of uCode running on
* embedded controller) as EEPROM reader; each read is a series of pulses
* to/from the EEPROM chip, not a single event, so even reads could conflict
* if they weren't arbitrated by some ownership mechanism. Here, the driver
* simply claims ownership, which should be safe when this function is called
* (i.e. before loading uCode!).
*/
static inline int iwl3945_eeprom_acquire_semaphore(struct iwl_priv *priv)
{
_iwl_clear_bit(priv, CSR_EEPROM_GP, CSR_EEPROM_GP_IF_OWNER_MSK);
return 0;
}
/**
* iwl3945_eeprom_init - read EEPROM contents
*
* Load the EEPROM contents from adapter into priv->eeprom39
*
* NOTE: This routine uses the non-debug IO access functions.
*/
int iwl3945_eeprom_init(struct iwl_priv *priv)
{
u16 *e = (u16 *)&priv->eeprom39;
u32 gp = iwl_read32(priv, CSR_EEPROM_GP);
int sz = sizeof(priv->eeprom39);
int ret;
u16 addr;
/* The EEPROM structure has several padding buffers within it
* and when adding new EEPROM maps is subject to programmer errors
* which may be very difficult to identify without explicitly
* checking the resulting size of the eeprom map. */
BUILD_BUG_ON(sizeof(priv->eeprom39) != IWL_EEPROM_IMAGE_SIZE);
if ((gp & CSR_EEPROM_GP_VALID_MSK) == CSR_EEPROM_GP_BAD_SIGNATURE) {
IWL_ERR(priv, "EEPROM not found, EEPROM_GP=0x%08x\n", gp);
return -ENOENT;
}
/* Make sure driver (instead of uCode) is allowed to read EEPROM */
ret = iwl3945_eeprom_acquire_semaphore(priv);
if (ret < 0) {
IWL_ERR(priv, "Failed to acquire EEPROM semaphore.\n");
return -ENOENT;
}
/* eeprom is an array of 16bit values */
for (addr = 0; addr < sz; addr += sizeof(u16)) {
u32 r;
_iwl_write32(priv, CSR_EEPROM_REG,
CSR_EEPROM_REG_MSK_ADDR & (addr << 1));
_iwl_clear_bit(priv, CSR_EEPROM_REG, CSR_EEPROM_REG_BIT_CMD);
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);
return ret;
}
r = _iwl_read_direct32(priv, CSR_EEPROM_REG);
e[addr / 2] = le16_to_cpu((__force __le16)(r >> 16));
}
return 0;
}
static void iwl3945_unset_hw_params(struct iwl_priv *priv)
{
if (priv->shared_virt)
......@@ -1304,7 +1224,7 @@ static void iwl3945_connection_init_rx_config(struct iwl_priv *priv,
priv->staging39_rxon.flags |= RXON_FLG_SHORT_PREAMBLE_MSK;
#endif
ch_info = iwl3945_get_channel_info(priv, priv->band,
ch_info = iwl_get_channel_info(priv, priv->band,
le16_to_cpu(priv->active39_rxon.channel));
if (!ch_info)
......@@ -1336,7 +1256,7 @@ static int iwl3945_set_mode(struct iwl_priv *priv, int mode)
if (mode == NL80211_IFTYPE_ADHOC) {
const struct iwl_channel_info *ch_info;
ch_info = iwl3945_get_channel_info(priv,
ch_info = iwl_get_channel_info(priv,
priv->band,
le16_to_cpu(priv->staging39_rxon.channel));
......@@ -3349,258 +3269,6 @@ unplugged:
return IRQ_NONE;
}
/************************** EEPROM BANDS ****************************
*
* The iwl3945_eeprom_band definitions below provide the mapping from the
* EEPROM contents to the specific channel number supported for each
* band.
*
* For example, iwl3945_priv->eeprom39.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 */
static const u8 iwl3945_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 iwl3945_eeprom_band_2[] = { /* 4915-5080MHz */
183, 184, 185, 187, 188, 189, 192, 196, 7, 8, 11, 12, 16
};
static const u8 iwl3945_eeprom_band_3[] = { /* 5170-5320MHz */
34, 36, 38, 40, 42, 44, 46, 48, 52, 56, 60, 64
};
static const u8 iwl3945_eeprom_band_4[] = { /* 5500-5700MHz */
100, 104, 108, 112, 116, 120, 124, 128, 132, 136, 140
};
static const u8 iwl3945_eeprom_band_5[] = { /* 5725-5825MHz */
145, 149, 153, 157, 161, 165
};
static void iwl3945_init_band_reference(const struct iwl_priv *priv, int band,
int *eeprom_ch_count,
const struct iwl_eeprom_channel
**eeprom_ch_info,
const u8 **eeprom_ch_index)
{
switch (band) {
case 1: /* 2.4GHz band */
*eeprom_ch_count = ARRAY_SIZE(iwl3945_eeprom_band_1);
*eeprom_ch_info = priv->eeprom39.band_1_channels;
*eeprom_ch_index = iwl3945_eeprom_band_1;
break;
case 2: /* 4.9GHz band */
*eeprom_ch_count = ARRAY_SIZE(iwl3945_eeprom_band_2);
*eeprom_ch_info = priv->eeprom39.band_2_channels;
*eeprom_ch_index = iwl3945_eeprom_band_2;
break;
case 3: /* 5.2GHz band */
*eeprom_ch_count = ARRAY_SIZE(iwl3945_eeprom_band_3);
*eeprom_ch_info = priv->eeprom39.band_3_channels;
*eeprom_ch_index = iwl3945_eeprom_band_3;
break;
case 4: /* 5.5GHz band */
*eeprom_ch_count = ARRAY_SIZE(iwl3945_eeprom_band_4);
*eeprom_ch_info = priv->eeprom39.band_4_channels;
*eeprom_ch_index = iwl3945_eeprom_band_4;
break;
case 5: /* 5.7GHz band */
*eeprom_ch_count = ARRAY_SIZE(iwl3945_eeprom_band_5);
*eeprom_ch_info = priv->eeprom39.band_5_channels;
*eeprom_ch_index = iwl3945_eeprom_band_5;
break;
default:
BUG();
return;
}
}
/**
* iwl3945_get_channel_info - Find driver's private channel info
*
* Based on band and channel number.
*/
const struct iwl_channel_info *
iwl3945_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;
case IEEE80211_NUM_BANDS:
WARN_ON(1);
}
return NULL;
}
#define CHECK_AND_PRINT(x) ((eeprom_ch_info[ch].flags & EEPROM_CHANNEL_##x) \
? # x " " : "")
/**
* iwl3945_init_channel_map - Set up driver's info for all possible channels
*/
static int iwl3945_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_INFO("Channel map already initialized.\n");
return 0;
}
if (priv->eeprom39.version < 0x2f) {
IWL_WARN(priv, "Unsupported EEPROM version: 0x%04X\n",
priv->eeprom39.version);
return -EINVAL;
}
IWL_DEBUG_INFO("Initializing regulatory info from EEPROM\n");
priv->channel_count =
ARRAY_SIZE(iwl3945_eeprom_band_1) +
ARRAY_SIZE(iwl3945_eeprom_band_2) +
ARRAY_SIZE(iwl3945_eeprom_band_3) +
ARRAY_SIZE(iwl3945_eeprom_band_4) +
ARRAY_SIZE(iwl3945_eeprom_band_5);
IWL_DEBUG_INFO("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++) {