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Commit 1df4e8fe authored by Holger Schurig's avatar Holger Schurig Committed by David S. Miller
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[PATCH] libertas: remove fw.c 

Firmware download is quite different for different hardware. The SDIO and CF
cards have two flat files that need to be downloaded, whereas the USB driver
needs only one file, but with an internal structure.

The code that handles this (USB only) structured file is currently in fw.c.
This patch moves this code into if_usb.c. The remaining functions in fw.c
have not much to do with firmware, they are various card- and network-stack
initialisation functions. I've moved them into main.c.
Signed-off-by: default avatarHolger Schurig <hs4233@mail.mn-solutions.de>
Signed-off-by: default avatarJohn W. Linville <linville@tuxdriver.com>
parent 8c512765
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Showing with 354 additions and 355 deletions
drivers/net/wireless/libertas/Makefile
View file @ 1df4e8fe
libertas-objs := main.o fw.o wext.o \
libertas-objs := main.o wext.o \
rx.o tx.o cmd.o \
cmdresp.o scan.o \
join.o 11d.o \
......
drivers/net/wireless/libertas/decl.h
View file @ 1df4e8fe
......@@ -75,14 +75,11 @@ void libertas_mac_event_disconnected(wlan_private * priv);
void libertas_send_iwevcustom_event(wlan_private * priv, s8 * str);
/* fw.c */
int libertas_init_fw(wlan_private * priv, char *fw_name);
/* main.c */
struct chan_freq_power *libertas_get_region_cfp_table(u8 region, u8 band,
int *cfp_no);
wlan_private *libertas_add_card(void *card, struct device *dmdev);
int libertas_activate_card(wlan_private *priv, char *fw_name);
int libertas_activate_card(wlan_private *priv);
int libertas_remove_card(wlan_private *priv);
int libertas_add_mesh(wlan_private *priv, struct device *dev);
void libertas_remove_mesh(wlan_private *priv);
......
drivers/net/wireless/libertas/fw.c deleted 100644 → 0
View file @ 8c512765
/**
* This file contains the initialization for FW and HW
*/
#include <linux/firmware.h>
#include "host.h"
#include "defs.h"
#include "decl.h"
#include "dev.h"
#include "wext.h"
#include "if_usb.h"
/**
* @brief This function checks the validity of Boot2/FW image.
*
* @param data pointer to image
* len image length
* @return 0 or -1
*/
static int check_fwfile_format(u8 *data, u32 totlen)
{
u32 bincmd, exit;
u32 blksize, offset, len;
int ret;
ret = 1;
exit = len = 0;
do {
struct fwheader *fwh = (void *)data;
bincmd = le32_to_cpu(fwh->dnldcmd);
blksize = le32_to_cpu(fwh->datalength);
switch (bincmd) {
case FW_HAS_DATA_TO_RECV:
offset = sizeof(struct fwheader) + blksize;
data += offset;
len += offset;
if (len >= totlen)
exit = 1;
break;
case FW_HAS_LAST_BLOCK:
exit = 1;
ret = 0;
break;
default:
exit = 1;
break;
}
} while (!exit);
if (ret)
lbs_pr_err("firmware file format check FAIL\n");
else
lbs_deb_fw("firmware file format check PASS\n");
return ret;
}
/**
* @brief This function downloads firmware image, gets
* HW spec from firmware and set basic parameters to
* firmware.
*
* @param priv A pointer to wlan_private structure
* @return 0 or -1
*/
static int wlan_setup_station_hw(wlan_private * priv, char *fw_name)
{
int ret = -1;
wlan_adapter *adapter = priv->adapter;
lbs_deb_enter(LBS_DEB_FW);
if ((ret = request_firmware(&priv->firmware, fw_name,
priv->hotplug_device)) < 0) {
lbs_pr_err("request_firmware() failed with %#x\n", ret);
lbs_pr_err("firmware %s not found\n", fw_name);
goto done;
}
if (check_fwfile_format(priv->firmware->data, priv->firmware->size)) {
release_firmware(priv->firmware);
goto done;
}
ret = priv->hw_prog_firmware(priv);
release_firmware(priv->firmware);
if (ret) {
lbs_deb_fw("bootloader in invalid state\n");
ret = -1;
goto done;
}
/*
* Read MAC address from HW
*/
memset(adapter->current_addr, 0xff, ETH_ALEN);
ret = libertas_prepare_and_send_command(priv, CMD_GET_HW_SPEC,
0, CMD_OPTION_WAITFORRSP, 0, NULL);
if (ret) {
ret = -1;
goto done;
}
libertas_set_mac_packet_filter(priv);
/* Get the supported Data rates */
ret = libertas_prepare_and_send_command(priv, CMD_802_11_DATA_RATE,
CMD_ACT_GET_TX_RATE,
CMD_OPTION_WAITFORRSP, 0, NULL);
if (ret) {
ret = -1;
goto done;
}
ret = 0;
done:
lbs_deb_leave_args(LBS_DEB_FW, "ret %d", ret);
return ret;
}
static int wlan_allocate_adapter(wlan_private * priv)
{
size_t bufsize;
wlan_adapter *adapter = priv->adapter;
/* Allocate buffer to store the BSSID list */
bufsize = MAX_NETWORK_COUNT * sizeof(struct bss_descriptor);
adapter->networks = kzalloc(bufsize, GFP_KERNEL);
if (!adapter->networks) {
lbs_pr_err("Out of memory allocating beacons\n");
libertas_free_adapter(priv);
return -ENOMEM;
}
/* Allocate the command buffers */
libertas_allocate_cmd_buffer(priv);
memset(&adapter->libertas_ps_confirm_sleep, 0, sizeof(struct PS_CMD_ConfirmSleep));
adapter->libertas_ps_confirm_sleep.seqnum = cpu_to_le16(++adapter->seqnum);
adapter->libertas_ps_confirm_sleep.command =
cpu_to_le16(CMD_802_11_PS_MODE);
adapter->libertas_ps_confirm_sleep.size =
cpu_to_le16(sizeof(struct PS_CMD_ConfirmSleep));
adapter->libertas_ps_confirm_sleep.result = 0;
adapter->libertas_ps_confirm_sleep.action =
cpu_to_le16(CMD_SUBCMD_SLEEP_CONFIRMED);
return 0;
}
static void wlan_init_adapter(wlan_private * priv)
{
wlan_adapter *adapter = priv->adapter;
int i;
adapter->scanprobes = 0;
adapter->bcn_avg_factor = DEFAULT_BCN_AVG_FACTOR;
adapter->data_avg_factor = DEFAULT_DATA_AVG_FACTOR;
/* ATIM params */
adapter->atimwindow = 0;
adapter->connect_status = LIBERTAS_DISCONNECTED;
memset(adapter->current_addr, 0xff, ETH_ALEN);
/* scan type */
adapter->scantype = CMD_SCAN_TYPE_ACTIVE;
/* scan mode */
adapter->scanmode = CMD_BSS_TYPE_ANY;
/* 802.11 specific */
adapter->secinfo.wep_enabled = 0;
for (i = 0; i < sizeof(adapter->wep_keys) / sizeof(adapter->wep_keys[0]);
i++)
memset(&adapter->wep_keys[i], 0, sizeof(struct enc_key));
adapter->wep_tx_keyidx = 0;
adapter->secinfo.auth_mode = IW_AUTH_ALG_OPEN_SYSTEM;
adapter->mode = IW_MODE_INFRA;
adapter->pending_assoc_req = NULL;
adapter->in_progress_assoc_req = NULL;
/* Initialize scan result lists */
INIT_LIST_HEAD(&adapter->network_free_list);
INIT_LIST_HEAD(&adapter->network_list);
for (i = 0; i < MAX_NETWORK_COUNT; i++) {
list_add_tail(&adapter->networks[i].list,
&adapter->network_free_list);
}
mutex_init(&adapter->lock);
adapter->prescan = 1;
memset(&adapter->curbssparams, 0, sizeof(adapter->curbssparams));
adapter->curbssparams.channel = DEFAULT_AD_HOC_CHANNEL;
/* PnP and power profile */
adapter->surpriseremoved = 0;
adapter->currentpacketfilter =
CMD_ACT_MAC_RX_ON | CMD_ACT_MAC_TX_ON;
adapter->radioon = RADIO_ON;
adapter->txantenna = RF_ANTENNA_2;
adapter->rxantenna = RF_ANTENNA_AUTO;
adapter->auto_rate = 1;
adapter->cur_rate = 0;
adapter->adhoc_grate_enabled = 0;
adapter->beaconperiod = MRVDRV_BEACON_INTERVAL;
// set default capabilities
adapter->capability = WLAN_CAPABILITY_SHORT_PREAMBLE;
adapter->psmode = WLAN802_11POWERMODECAM;
adapter->multipledtim = MRVDRV_DEFAULT_MULTIPLE_DTIM;
adapter->listeninterval = MRVDRV_DEFAULT_LISTEN_INTERVAL;
adapter->psstate = PS_STATE_FULL_POWER;
adapter->needtowakeup = 0;
adapter->locallisteninterval = 0; /* default value in firmware will be used */
adapter->intcounter = 0;
adapter->currenttxskb = NULL;
adapter->pkttxctrl = 0;
memset(&adapter->tx_queue_ps, 0, NR_TX_QUEUE*sizeof(struct sk_buff*));
adapter->tx_queue_idx = 0;
spin_lock_init(&adapter->txqueue_lock);
return;
}
static void command_timer_fn(unsigned long data);
int libertas_init_fw(wlan_private * priv, char *fw_name)
{
int ret = -1;
wlan_adapter *adapter = priv->adapter;
lbs_deb_enter(LBS_DEB_FW);
/* Allocate adapter structure */
if ((ret = wlan_allocate_adapter(priv)) != 0)
goto done;
/* init adapter structure */
wlan_init_adapter(priv);
/* init timer etc. */
setup_timer(&adapter->command_timer, command_timer_fn,
(unsigned long)priv);
/* download fimrware etc. */
if ((ret = wlan_setup_station_hw(priv, fw_name)) != 0) {
del_timer_sync(&adapter->command_timer);
goto done;
}
/* init 802.11d */
libertas_init_11d(priv);
ret = 0;
done:
lbs_deb_leave_args(LBS_DEB_FW, "ret %d", ret);
return ret;
}
void libertas_free_adapter(wlan_private * priv)
{
wlan_adapter *adapter = priv->adapter;
if (!adapter) {
lbs_deb_fw("why double free adapter?\n");
return;
}
lbs_deb_fw("free command buffer\n");
libertas_free_cmd_buffer(priv);
lbs_deb_fw("free command_timer\n");
del_timer(&adapter->command_timer);
lbs_deb_fw("free scan results table\n");
kfree(adapter->networks);
adapter->networks = NULL;
/* Free the adapter object itself */
lbs_deb_fw("free adapter\n");
kfree(adapter);
priv->adapter = NULL;
}
/**
* This function handles the timeout of command sending.
* It will re-send the same command again.
*/
static void command_timer_fn(unsigned long data)
{
wlan_private *priv = (wlan_private *)data;
wlan_adapter *adapter = priv->adapter;
struct cmd_ctrl_node *ptempnode;
struct cmd_ds_command *cmd;
unsigned long flags;
ptempnode = adapter->cur_cmd;
if (ptempnode == NULL) {
lbs_deb_fw("ptempnode empty\n");
return;
}
cmd = (struct cmd_ds_command *)ptempnode->bufvirtualaddr;
if (!cmd) {
lbs_deb_fw("cmd is NULL\n");
return;
}
lbs_deb_fw("command_timer_fn fired, cmd %x\n", cmd->command);
if (!adapter->fw_ready)
return;
spin_lock_irqsave(&adapter->driver_lock, flags);
adapter->cur_cmd = NULL;
spin_unlock_irqrestore(&adapter->driver_lock, flags);
lbs_deb_fw("re-sending same command because of timeout\n");
libertas_queue_cmd(adapter, ptempnode, 0);
wake_up_interruptible(&priv->waitq);
return;
}
drivers/net/wireless/libertas/if_usb.c
View file @ 1df4e8fe
......@@ -216,7 +216,7 @@ static int if_usb_probe(struct usb_interface *intf,
priv->hw_get_int_status = if_usb_get_int_status;
priv->hw_read_event_cause = if_usb_read_event_cause;
if (libertas_activate_card(priv, libertas_fw_name))
if (libertas_activate_card(priv))
goto err_activate_card;
list_add_tail(&cardp->list, &usb_devices);
......@@ -819,7 +819,7 @@ static int if_usb_issue_boot_command(wlan_private *priv, int ivalue)
}
static int if_usb_prog_firmware(wlan_private * priv)
static int if_usb_do_prog_firmware(wlan_private * priv)
{
struct usb_card_rec *cardp = priv->card;
int i = 0;
......@@ -903,6 +903,80 @@ static int if_usb_prog_firmware(wlan_private * priv)
return ret;
}
/**
* @brief This function checks the validity of Boot2/FW image.
*
* @param data pointer to image
* len image length
* @return 0 or -1
*/
static int check_fwfile_format(u8 *data, u32 totlen)
{
u32 bincmd, exit;
u32 blksize, offset, len;
int ret;
ret = 1;
exit = len = 0;
do {
struct fwheader *fwh = (void *)data;
bincmd = le32_to_cpu(fwh->dnldcmd);
blksize = le32_to_cpu(fwh->datalength);
switch (bincmd) {
case FW_HAS_DATA_TO_RECV:
offset = sizeof(struct fwheader) + blksize;
data += offset;
len += offset;
if (len >= totlen)
exit = 1;
break;
case FW_HAS_LAST_BLOCK:
exit = 1;
ret = 0;
break;
default:
exit = 1;
break;
}
} while (!exit);
if (ret)
lbs_pr_err("firmware file format check FAIL\n");
else
lbs_deb_fw("firmware file format check PASS\n");
return ret;
}
static int if_usb_prog_firmware(wlan_private *priv)
{
int ret = -1;
lbs_deb_enter(LBS_DEB_FW);
if ((ret = request_firmware(&priv->firmware, libertas_fw_name,
priv->hotplug_device)) < 0) {
lbs_pr_err("request_firmware() failed with %#x\n", ret);
lbs_pr_err("firmware %s not found\n", libertas_fw_name);
goto done;
}
if (check_fwfile_format(priv->firmware->data, priv->firmware->size)) {
release_firmware(priv->firmware);
goto done;
}
ret = if_usb_do_prog_firmware(priv);
release_firmware(priv->firmware);
done:
return ret;
}
#ifdef CONFIG_PM
static int if_usb_suspend(struct usb_interface *intf, pm_message_t message)
{
......
drivers/net/wireless/libertas/main.c
View file @ 1df4e8fe
......@@ -793,6 +793,280 @@ static int libertas_thread(void *data)
return 0;
}
/**
* @brief This function downloads firmware image, gets
* HW spec from firmware and set basic parameters to
* firmware.
*
* @param priv A pointer to wlan_private structure
* @return 0 or -1
*/
static int wlan_setup_station_hw(wlan_private * priv)
{
int ret = -1;
wlan_adapter *adapter = priv->adapter;
lbs_deb_enter(LBS_DEB_FW);
ret = priv->hw_prog_firmware(priv);
if (ret) {
lbs_deb_fw("bootloader in invalid state\n");
ret = -1;
goto done;
}
/*
* Read MAC address from HW
*/
memset(adapter->current_addr, 0xff, ETH_ALEN);
ret = libertas_prepare_and_send_command(priv, CMD_GET_HW_SPEC,
0, CMD_OPTION_WAITFORRSP, 0, NULL);
if (ret) {
ret = -1;
goto done;
}
libertas_set_mac_packet_filter(priv);
/* Get the supported Data rates */
ret = libertas_prepare_and_send_command(priv, CMD_802_11_DATA_RATE,
CMD_ACT_GET_TX_RATE,
CMD_OPTION_WAITFORRSP, 0, NULL);
if (ret) {
ret = -1;
goto done;
}
ret = 0;
done:
lbs_deb_leave_args(LBS_DEB_FW, "ret %d", ret);
return ret;
}
static void command_timer_fn(unsigned long data);
/**
* This function handles the timeout of command sending.
* It will re-send the same command again.
*/
static void command_timer_fn(unsigned long data)
{
wlan_private *priv = (wlan_private *)data;
wlan_adapter *adapter = priv->adapter;
struct cmd_ctrl_node *ptempnode;
struct cmd_ds_command *cmd;
unsigned long flags;
ptempnode = adapter->cur_cmd;
if (ptempnode == NULL) {
lbs_deb_fw("ptempnode empty\n");
return;
}
cmd = (struct cmd_ds_command *)ptempnode->bufvirtualaddr;
if (!cmd) {
lbs_deb_fw("cmd is NULL\n");
return;
}
lbs_deb_fw("command_timer_fn fired, cmd %x\n", cmd->command);
if (!adapter->fw_ready)
return;
spin_lock_irqsave(&adapter->driver_lock, flags);
adapter->cur_cmd = NULL;
spin_unlock_irqrestore(&adapter->driver_lock, flags);
lbs_deb_fw("re-sending same command because of timeout\n");
libertas_queue_cmd(adapter, ptempnode, 0);
wake_up_interruptible(&priv->waitq);
return;
}
static int wlan_allocate_adapter(wlan_private * priv)
{
size_t bufsize;
wlan_adapter *adapter = priv->adapter;
/* Allocate buffer to store the BSSID list */
bufsize = MAX_NETWORK_COUNT * sizeof(struct bss_descriptor);
adapter->networks = kzalloc(bufsize, GFP_KERNEL);
if (!adapter->networks) {
lbs_pr_err("Out of memory allocating beacons\n");
libertas_free_adapter(priv);
return -ENOMEM;
}
/* Allocate the command buffers */
libertas_allocate_cmd_buffer(priv);
memset(&adapter->libertas_ps_confirm_sleep, 0, sizeof(struct PS_CMD_ConfirmSleep));
adapter->libertas_ps_confirm_sleep.seqnum = cpu_to_le16(++adapter->seqnum);
adapter->libertas_ps_confirm_sleep.command =
cpu_to_le16(CMD_802_11_PS_MODE);
adapter->libertas_ps_confirm_sleep.size =
cpu_to_le16(sizeof(struct PS_CMD_ConfirmSleep));
adapter->libertas_ps_confirm_sleep.result = 0;
adapter->libertas_ps_confirm_sleep.action =
cpu_to_le16(CMD_SUBCMD_SLEEP_CONFIRMED);
return 0;
}
static void wlan_init_adapter(wlan_private * priv)
{
wlan_adapter *adapter = priv->adapter;
int i;
adapter->scanprobes = 0;
adapter->bcn_avg_factor = DEFAULT_BCN_AVG_FACTOR;
adapter->data_avg_factor = DEFAULT_DATA_AVG_FACTOR;
/* ATIM params */
adapter->atimwindow = 0;
adapter->connect_status = LIBERTAS_DISCONNECTED;
memset(adapter->current_addr, 0xff, ETH_ALEN);
/* scan type */
adapter->scantype = CMD_SCAN_TYPE_ACTIVE;
/* scan mode */
adapter->scanmode = CMD_BSS_TYPE_ANY;
/* 802.11 specific */
adapter->secinfo.wep_enabled = 0;
for (i = 0; i < sizeof(adapter->wep_keys) / sizeof(adapter->wep_keys[0]);
i++)
memset(&adapter->wep_keys[i], 0, sizeof(struct enc_key));
adapter->wep_tx_keyidx = 0;
adapter->secinfo.auth_mode = IW_AUTH_ALG_OPEN_SYSTEM;
adapter->mode = IW_MODE_INFRA;
adapter->pending_assoc_req = NULL;
adapter->in_progress_assoc_req = NULL;
/* Initialize scan result lists */
INIT_LIST_HEAD(&adapter->network_free_list);
INIT_LIST_HEAD(&adapter->network_list);
for (i = 0; i < MAX_NETWORK_COUNT; i++) {
list_add_tail(&adapter->networks[i].list,
&adapter->network_free_list);
}
mutex_init(&adapter->lock);
adapter->prescan = 1;
memset(&adapter->curbssparams, 0, sizeof(adapter->curbssparams));
adapter->curbssparams.channel = DEFAULT_AD_HOC_CHANNEL;
/* PnP and power profile */
adapter->surpriseremoved = 0;
adapter->currentpacketfilter =
CMD_ACT_MAC_RX_ON | CMD_ACT_MAC_TX_ON;
adapter->radioon = RADIO_ON;
adapter->txantenna = RF_ANTENNA_2;
adapter->rxantenna = RF_ANTENNA_AUTO;
adapter->auto_rate = 1;
adapter->cur_rate = 0;
adapter->adhoc_grate_enabled = 0;
adapter->beaconperiod = MRVDRV_BEACON_INTERVAL;
// set default capabilities
adapter->capability = WLAN_CAPABILITY_SHORT_PREAMBLE;
adapter->psmode = WLAN802_11POWERMODECAM;
adapter->multipledtim = MRVDRV_DEFAULT_MULTIPLE_DTIM;
adapter->listeninterval = MRVDRV_DEFAULT_LISTEN_INTERVAL;
adapter->psstate = PS_STATE_FULL_POWER;
adapter->needtowakeup = 0;
adapter->locallisteninterval = 0; /* default value in firmware will be used */
adapter->intcounter = 0;
adapter->currenttxskb = NULL;
adapter->pkttxctrl = 0;
memset(&adapter->tx_queue_ps, 0, NR_TX_QUEUE*sizeof(struct sk_buff*));
adapter->tx_queue_idx = 0;
spin_lock_init(&adapter->txqueue_lock);
return;
}
void libertas_free_adapter(wlan_private * priv)
{
wlan_adapter *adapter = priv->adapter;
if (!adapter) {
lbs_deb_fw("why double free adapter?\n");
return;
}
lbs_deb_fw("free command buffer\n");
libertas_free_cmd_buffer(priv);
lbs_deb_fw("free command_timer\n");
del_timer(&adapter->command_timer);
lbs_deb_fw("free scan results table\n");
kfree(adapter->networks);
adapter->networks = NULL;
/* Free the adapter object itself */
lbs_deb_fw("free adapter\n");
kfree(adapter);
priv->adapter = NULL;
}
static int libertas_init_fw(wlan_private * priv)
{
int ret = -1;
wlan_adapter *adapter = priv->adapter;
lbs_deb_enter(LBS_DEB_FW);
/* Allocate adapter structure */
if ((ret = wlan_allocate_adapter(priv)) != 0)
goto done;
/* init adapter structure */
wlan_init_adapter(priv);
/* init timer etc. */
setup_timer(&adapter->command_timer, command_timer_fn,
(unsigned long)priv);
/* download fimrware etc. */
if ((ret = wlan_setup_station_hw(priv)) != 0) {
del_timer_sync(&adapter->command_timer);
goto done;
}
/* init 802.11d */
libertas_init_11d(priv);
ret = 0;
done:
lbs_deb_leave_args(LBS_DEB_FW, "ret %d", ret);
return ret;
}
/**
* @brief This function adds the card. it will probe the
* card, allocate the wlan_priv and initialize the device.
......@@ -863,7 +1137,7 @@ wlan_private *libertas_add_card(void *card, struct device *dmdev)
}
EXPORT_SYMBOL_GPL(libertas_add_card);
int libertas_activate_card(wlan_private *priv, char *fw_name)
int libertas_activate_card(wlan_private *priv)
{
struct net_device *dev = priv->dev;
int ret = -1;
......@@ -894,7 +1168,7 @@ int libertas_activate_card(wlan_private *priv, char *fw_name)
}
/* init FW and HW */
if (fw_name && libertas_init_fw(priv, fw_name)) {
if (libertas_init_fw(priv)) {
lbs_pr_err("firmware init failed\n");
goto err_registerdev;
}
......
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