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[PATCH] rt2x00: Reorganize rt2x00dev->flags

Browse source 
The rt2x00dev->flags has become a chaos over time,
this will reorganize the flags by renaming, deleting, adding
and properly implement the flags.

Signed-off-by: Ivo van Doorn <IvDoorn@gmail.com>
Signed-off-by: John W. Linville <linville@tuxdriver.com>
This commit is contained in:
Ivo van Doorn 2007-09-25 20:55:39 +02:00 committed by David S. Miller
parent 12dadb9009
commit 066cb637b1
11 changed files with 115 additions and 84 deletions
Show stats Download patch file Download diff file Expand all files Collapse all files

4
drivers/net/wireless/rt2x00/rt2400pci.c
View file

@ -1374,7 +1374,7 @@ static int rt2400pci_init_eeprom(struct rt2x00_dev *rt2x00dev)
* Detect if this device has an hardware controlled radio.
*/
if (rt2x00_get_field16(eeprom, EEPROM_ANTENNA_HARDWARE_RADIO))
__set_bit(DEVICE_SUPPORT_HW_BUTTON, &rt2x00dev->flags);
__set_bit(CONFIG_SUPPORT_HW_BUTTON, &rt2x00dev->flags);
/*
* Check if the BBP tuning should be enabled.
@ -1469,7 +1469,7 @@ static int rt2400pci_probe_hw(struct rt2x00_dev *rt2x00dev)
/*
* This device requires the beacon ring
*/
__set_bit(REQUIRE_BEACON_RING, &rt2x00dev->flags);
__set_bit(DRIVER_REQUIRE_BEACON_RING, &rt2x00dev->flags);
/*
* Set the rssi offset.

4
drivers/net/wireless/rt2x00/rt2500pci.c
View file

@ -1545,7 +1545,7 @@ static int rt2500pci_init_eeprom(struct rt2x00_dev *rt2x00dev)
* Detect if this device has an hardware controlled radio.
*/
if (rt2x00_get_field16(eeprom, EEPROM_ANTENNA_HARDWARE_RADIO))
__set_bit(DEVICE_SUPPORT_HW_BUTTON, &rt2x00dev->flags);
__set_bit(CONFIG_SUPPORT_HW_BUTTON, &rt2x00dev->flags);
/*
* Check if the BBP tuning should be enabled.
@ -1801,7 +1801,7 @@ static int rt2500pci_probe_hw(struct rt2x00_dev *rt2x00dev)
/*
* This device requires the beacon ring
*/
__set_bit(REQUIRE_BEACON_RING, &rt2x00dev->flags);
__set_bit(DRIVER_REQUIRE_BEACON_RING, &rt2x00dev->flags);
/*
* Set the rssi offset.

2
drivers/net/wireless/rt2x00/rt2500usb.c
View file

@ -1573,7 +1573,7 @@ static int rt2500usb_probe_hw(struct rt2x00_dev *rt2x00dev)
/*
* This device requires the beacon ring
*/
__set_bit(REQUIRE_BEACON_RING, &rt2x00dev->flags);
__set_bit(DRIVER_REQUIRE_BEACON_RING, &rt2x00dev->flags);
/*
* Set the rssi offset.

31
drivers/net/wireless/rt2x00/rt2x00.h
View file

@ -493,24 +493,21 @@ struct rt2x00_dev {
* of the device capabilities are stored.
*/
unsigned long flags;
#define DEVICE_ENABLED_RADIO 1
#define DEVICE_ENABLED_RADIO_HW 2
#define DEVICE_PRESENT 1
#define DEVICE_REGISTERED_HW 2
#define DEVICE_INITIALIZED 3
#define DEVICE_INITIALIZED_HW 4
#define REQUIRE_FIRMWARE 5
/* Hole: Add new Flag here */
#define INTERFACE_RESUME 8
#define INTERFACE_ENABLED 9
/* Hole: Add new Flag here */
#define REQUIRE_BEACON_RING 11
#define DEVICE_SUPPORT_HW_BUTTON 12
#define CONFIG_FRAME_TYPE 13
#define CONFIG_RF_SEQUENCE 14
/* Hole: Add new Flag here */
#define CONFIG_EXTERNAL_LNA_A 16
#define CONFIG_EXTERNAL_LNA_BG 17
#define CONFIG_DOUBLE_ANTENNA 18
#define CONFIG_DISABLE_LINK_TUNING 19
#define DEVICE_STARTED 4
#define DEVICE_ENABLED_RADIO 5
#define DEVICE_ENABLED_RADIO_HW 6
#define DRIVER_REQUIRE_FIRMWARE 7
#define DRIVER_REQUIRE_BEACON_RING 8
#define CONFIG_SUPPORT_HW_BUTTON 9
#define CONFIG_FRAME_TYPE 10
#define CONFIG_RF_SEQUENCE 11
#define CONFIG_EXTERNAL_LNA_A 12
#define CONFIG_EXTERNAL_LNA_BG 13
#define CONFIG_DOUBLE_ANTENNA 14
#define CONFIG_DISABLE_LINK_TUNING 15
/*
* Chipset identification.

27
drivers/net/wireless/rt2x00/rt2x00config.c
View file

@ -48,33 +48,20 @@ void rt2x00lib_config_bssid(struct rt2x00_dev *rt2x00dev, u8 *bssid)
void rt2x00lib_config_type(struct rt2x00_dev *rt2x00dev, int type)
{
struct interface *intf = &rt2x00dev->interface;
if (!test_bit(INTERFACE_RESUME, &rt2x00dev->flags) &&
(!!test_bit(INTERFACE_ENABLED, &rt2x00dev->flags) ==
!!is_interface_present(intf)))
return;
rt2x00dev->ops->lib->config_type(rt2x00dev, type);
/*
* Update the configuration flags.
*/
if (is_interface_present(intf))
__set_bit(INTERFACE_ENABLED, &rt2x00dev->flags);
else
__clear_bit(INTERFACE_ENABLED, &rt2x00dev->flags);
if (type != INVALID_INTERFACE)
rt2x00dev->ops->lib->config_type(rt2x00dev, type);
}
void rt2x00lib_config(struct rt2x00_dev *rt2x00dev, struct ieee80211_conf *conf)
void rt2x00lib_config(struct rt2x00_dev *rt2x00dev,
struct ieee80211_conf *conf, const int force_config)
{
int flags = 0;
/*
* If we are in RESUME state we should
* force all configuration options.
* In some situations we want to force all configurations
* to be reloaded (When resuming for instance).
*/
if (test_bit(INTERFACE_RESUME, &rt2x00dev->flags)) {
if (force_config) {
flags = CONFIG_UPDATE_ALL;
goto config;
}

55
drivers/net/wireless/rt2x00/rt2x00dev.c
View file

@ -40,7 +40,7 @@
struct data_ring *rt2x00lib_get_ring(struct rt2x00_dev *rt2x00dev,
const unsigned int queue)
{
int beacon = test_bit(REQUIRE_BEACON_RING, &rt2x00dev->flags);
int beacon = test_bit(DRIVER_REQUIRE_BEACON_RING, &rt2x00dev->flags);
/*
* Check if we are requesting a reqular TX ring,
@ -102,7 +102,7 @@ int rt2x00lib_enable_radio(struct rt2x00_dev *rt2x00dev)
* And check if the hardware button has been disabled.
*/
if (test_bit(DEVICE_ENABLED_RADIO, &rt2x00dev->flags) ||
(test_bit(DEVICE_SUPPORT_HW_BUTTON, &rt2x00dev->flags) &&
(test_bit(CONFIG_SUPPORT_HW_BUTTON, &rt2x00dev->flags) &&
!test_bit(DEVICE_ENABLED_RADIO_HW, &rt2x00dev->flags)))
return 0;
@ -162,6 +162,9 @@ void rt2x00lib_toggle_rx(struct rt2x00_dev *rt2x00dev, int enable)
{
enum dev_state state = enable ? STATE_RADIO_RX_ON : STATE_RADIO_RX_OFF;
if (!test_bit(DEVICE_ENABLED_RADIO, &rt2x00dev->flags))
return;
/*
* When we are disabling the RX, we should also stop the link tuner.
*/
@ -721,7 +724,7 @@ exit:
static void rt2x00lib_remove_hw(struct rt2x00_dev *rt2x00dev)
{
if (test_bit(DEVICE_INITIALIZED_HW, &rt2x00dev->flags))
if (test_bit(DEVICE_REGISTERED_HW, &rt2x00dev->flags))
ieee80211_unregister_hw(rt2x00dev->hw);
if (likely(rt2x00dev->hwmodes)) {
@ -753,7 +756,7 @@ static int rt2x00lib_probe_hw(struct rt2x00_dev *rt2x00dev)
return status;
}
__set_bit(DEVICE_INITIALIZED_HW, &rt2x00dev->flags);
__set_bit(DEVICE_REGISTERED_HW, &rt2x00dev->flags);
return 0;
}
@ -810,7 +813,7 @@ static int rt2x00lib_alloc_ring_entries(struct rt2x00_dev *rt2x00dev)
return -ENOMEM;
}
if (!test_bit(REQUIRE_BEACON_RING, &rt2x00dev->flags))
if (!test_bit(DRIVER_REQUIRE_BEACON_RING, &rt2x00dev->flags))
return 0;
/*
@ -919,7 +922,7 @@ static int rt2x00lib_alloc_rings(struct rt2x00_dev *rt2x00dev)
* Atim: 1 (if required)
*/
rt2x00dev->data_rings = 1 + rt2x00dev->hw->queues +
(2 * test_bit(REQUIRE_BEACON_RING, &rt2x00dev->flags));
(2 * test_bit(DRIVER_REQUIRE_BEACON_RING, &rt2x00dev->flags));
ring = kzalloc(rt2x00dev->data_rings * sizeof(*ring), GFP_KERNEL);
if (!ring) {
@ -932,7 +935,7 @@ static int rt2x00lib_alloc_rings(struct rt2x00_dev *rt2x00dev)
*/
rt2x00dev->rx = ring;
rt2x00dev->tx = &rt2x00dev->rx[1];
if (test_bit(REQUIRE_BEACON_RING, &rt2x00dev->flags))
if (test_bit(DRIVER_REQUIRE_BEACON_RING, &rt2x00dev->flags))
rt2x00dev->bcn = &rt2x00dev->tx[rt2x00dev->hw->queues];
/*
@ -1011,6 +1014,8 @@ int rt2x00lib_probe_dev(struct rt2x00_dev *rt2x00dev)
*/
rt2x00debug_register(rt2x00dev);
__set_bit(DEVICE_PRESENT, &rt2x00dev->flags);
return 0;
exit:
@ -1022,6 +1027,8 @@ EXPORT_SYMBOL_GPL(rt2x00lib_probe_dev);
void rt2x00lib_remove_dev(struct rt2x00_dev *rt2x00dev)
{
__clear_bit(DEVICE_PRESENT, &rt2x00dev->flags);
/*
* Disable radio.
*/
@ -1068,6 +1075,13 @@ int rt2x00lib_suspend(struct rt2x00_dev *rt2x00dev, pm_message_t state)
int retval;
NOTICE(rt2x00dev, "Going to sleep.\n");
__clear_bit(DEVICE_PRESENT, &rt2x00dev->flags);
/*
* Only continue if mac80211 has open interfaces.
*/
if (!test_bit(DEVICE_STARTED, &rt2x00dev->flags))
goto exit;
/*
* Disable radio and unitialize all items
@ -1077,6 +1091,7 @@ int rt2x00lib_suspend(struct rt2x00_dev *rt2x00dev, pm_message_t state)
rt2x00lib_uninitialize(rt2x00dev);
rt2x00debug_deregister(rt2x00dev);
exit:
/*
* Set device mode to sleep for power management.
*/
@ -1094,13 +1109,19 @@ int rt2x00lib_resume(struct rt2x00_dev *rt2x00dev)
int retval;
NOTICE(rt2x00dev, "Waking up.\n");
__set_bit(INTERFACE_RESUME, &rt2x00dev->flags);
__set_bit(DEVICE_PRESENT, &rt2x00dev->flags);
/*
* Open the debugfs entry.
*/
rt2x00debug_register(rt2x00dev);
/*
* Only continue if mac80211 has open interfaces.
*/
if (!test_bit(DEVICE_STARTED, &rt2x00dev->flags))
return 0;
/*
* Reinitialize device and all active interfaces.
*/
@ -1111,14 +1132,22 @@ int rt2x00lib_resume(struct rt2x00_dev *rt2x00dev)
/*
* Reconfigure device.
*/
retval = rt2x00mac_config(rt2x00dev->hw, &rt2x00dev->hw->conf);
if (retval)
goto exit;
rt2x00lib_config(rt2x00dev, &rt2x00dev->hw->conf, 1);
if (!rt2x00dev->hw->conf.radio_enabled)
rt2x00lib_disable_radio(rt2x00dev);
rt2x00lib_config_mac_addr(rt2x00dev, intf->mac);
rt2x00lib_config_bssid(rt2x00dev, intf->bssid);
rt2x00lib_config_type(rt2x00dev, intf->type);
/*
* It is possible that during that mac80211 has attempted
* to send frames while we were suspending or resuming.
* In that case we have disabled the TX queue and should
* now enable it again
*/
ieee80211_start_queues(rt2x00dev->hw);
/*
* When in Master or Ad-hoc mode,
* restart Beacon transmitting by faking a beacondone event.
@ -1127,8 +1156,6 @@ int rt2x00lib_resume(struct rt2x00_dev *rt2x00dev)
intf->type == IEEE80211_IF_TYPE_IBSS)
rt2x00lib_beacondone(rt2x00dev);
__clear_bit(INTERFACE_RESUME, &rt2x00dev->flags);
return 0;
exit:
@ -1136,8 +1163,6 @@ exit:
rt2x00lib_uninitialize(rt2x00dev);
rt2x00debug_deregister(rt2x00dev);
__clear_bit(INTERFACE_RESUME, &rt2x00dev->flags);
return retval;
}
EXPORT_SYMBOL_GPL(rt2x00lib_resume);

3
drivers/net/wireless/rt2x00/rt2x00lib.h
View file

@ -52,7 +52,8 @@ void rt2x00lib_uninitialize(struct rt2x00_dev *rt2x00dev);
void rt2x00lib_config_mac_addr(struct rt2x00_dev *rt2x00dev, u8 *mac);
void rt2x00lib_config_bssid(struct rt2x00_dev *rt2x00dev, u8 *bssid);
void rt2x00lib_config_type(struct rt2x00_dev *rt2x00dev, int type);
void rt2x00lib_config(struct rt2x00_dev *rt2x00dev, struct ieee80211_conf *conf);
void rt2x00lib_config(struct rt2x00_dev *rt2x00dev,
struct ieee80211_conf *conf, const int force_config);
/*
* Firmware handlers.

55
drivers/net/wireless/rt2x00/rt2x00mac.c
View file

@ -81,6 +81,17 @@ int rt2x00mac_tx(struct ieee80211_hw *hw, struct sk_buff *skb,
struct data_ring *ring;
u16 frame_control;
/*
* Mac80211 might be calling this function while we are trying
* to remove the device or perhaps suspending it.
* Note that we can only stop the TX queues inside the TX path
* due to possible race conditions in mac80211.
*/
if (!test_bit(DEVICE_PRESENT, &rt2x00dev->flags)) {
ieee80211_stop_queues(hw);
return 0;
}
/*
* Determine which ring to put packet on.
*/
@ -126,14 +137,15 @@ int rt2x00mac_start(struct ieee80211_hw *hw)
struct rt2x00_dev *rt2x00dev = hw->priv;
int status;
if (test_bit(DEVICE_INITIALIZED, &rt2x00dev->flags))
if (!test_bit(DEVICE_PRESENT, &rt2x00dev->flags) ||
test_bit(DEVICE_STARTED, &rt2x00dev->flags))
return 0;
/*
* If this is the first interface which is added,
* we should load the firmware now.
*/
if (test_bit(REQUIRE_FIRMWARE, &rt2x00dev->flags)) {
if (test_bit(DRIVER_REQUIRE_FIRMWARE, &rt2x00dev->flags)) {
status = rt2x00lib_load_firmware(rt2x00dev);
if (status)
return status;
@ -155,6 +167,8 @@ int rt2x00mac_start(struct ieee80211_hw *hw)
return status;
}
__set_bit(DEVICE_STARTED, &rt2x00dev->flags);
return 0;
}
EXPORT_SYMBOL_GPL(rt2x00mac_start);
@ -163,11 +177,16 @@ void rt2x00mac_stop(struct ieee80211_hw *hw)
{
struct rt2x00_dev *rt2x00dev = hw->priv;
if (!test_bit(DEVICE_PRESENT, &rt2x00dev->flags))
return;
/*
* Perhaps we can add something smarter here,
* but for now just disabling the radio should do.
*/
rt2x00lib_disable_radio(rt2x00dev);
__clear_bit(DEVICE_STARTED, &rt2x00dev->flags);
}
EXPORT_SYMBOL_GPL(rt2x00mac_stop);
@ -178,9 +197,12 @@ int rt2x00mac_add_interface(struct ieee80211_hw *hw,
struct interface *intf = &rt2x00dev->interface;
/*
* We only support 1 non-monitor interface.
* Don't allow interfaces to be added while
* either the device has disappeared or when
* another interface is already present.
*/
if (is_interface_present(intf))
if (!test_bit(DEVICE_PRESENT, &rt2x00dev->flags) ||
is_interface_present(intf))
return -ENOBUFS;
intf->id = conf->if_id;
@ -208,9 +230,12 @@ void rt2x00mac_remove_interface(struct ieee80211_hw *hw,
struct interface *intf = &rt2x00dev->interface;
/*
* We only support 1 non-monitor interface.
* Don't allow interfaces to be remove while
* either the device has disappeared or when
* no interface is present.
*/
if (!is_interface_present(intf))
if (!test_bit(DEVICE_PRESENT, &rt2x00dev->flags) ||
!is_interface_present(intf))
return;
intf->id = 0;
@ -233,12 +258,10 @@ int rt2x00mac_config(struct ieee80211_hw *hw, struct ieee80211_conf *conf)
struct rt2x00_dev *rt2x00dev = hw->priv;
/*
* If the device is not initialized we shouldn't accept
* any configuration changes. Mac80211 might be calling
* this function while we are trying to remove the device
* or perhaps suspending it.
* Mac80211 might be calling this function while we are trying
* to remove the device or perhaps suspending it.
*/
if (!test_bit(DEVICE_INITIALIZED, &rt2x00dev->flags))
if (!test_bit(DEVICE_PRESENT, &rt2x00dev->flags))
return 0;
/*
@ -252,7 +275,7 @@ int rt2x00mac_config(struct ieee80211_hw *hw, struct ieee80211_conf *conf)
rt2x00lib_toggle_rx(rt2x00dev, 0);
}
rt2x00lib_config(rt2x00dev, conf);
rt2x00lib_config(rt2x00dev, conf, 0);
/*
* Reenable RX only if the radio should be on.
@ -274,12 +297,10 @@ int rt2x00mac_config_interface(struct ieee80211_hw *hw, int if_id,
int status;
/*
* If the device is not initialized we shouldn't accept
* any configuration changes. Mac80211 might be calling
* this function while we are trying to remove the device
* or perhaps suspending it.
* Mac80211 might be calling this function while we are trying
* to remove the device or perhaps suspending it.
*/
if (!test_bit(DEVICE_INITIALIZED, &rt2x00dev->flags))
if (!test_bit(DEVICE_PRESENT, &rt2x00dev->flags))
return 0;
/*

12
drivers/net/wireless/rt2x00/rt2x00rfkill.c
View file

@ -45,9 +45,9 @@ static int rt2x00rfkill_toggle_radio(void *data, enum rfkill_state state)
return 0;
/*
* Only continue if we have an active interface.
* Only continue if there are enabled interfaces.
*/
if (!is_interface_present(&rt2x00dev->interface))
if (!test_bit(DEVICE_STARTED, &rt2x00dev->flags))
return 0;
if (state == RFKILL_STATE_ON) {
@ -76,7 +76,7 @@ int rt2x00rfkill_register(struct rt2x00_dev *rt2x00dev)
{
int retval;
if (!test_bit(DEVICE_SUPPORT_HW_BUTTON, &rt2x00dev->flags))
if (!test_bit(CONFIG_SUPPORT_HW_BUTTON, &rt2x00dev->flags))
return 0;
retval = rfkill_register(rt2x00dev->rfkill);
@ -97,7 +97,7 @@ int rt2x00rfkill_register(struct rt2x00_dev *rt2x00dev)
void rt2x00rfkill_unregister(struct rt2x00_dev *rt2x00dev)
{
if (!test_bit(DEVICE_SUPPORT_HW_BUTTON, &rt2x00dev->flags))
if (!test_bit(CONFIG_SUPPORT_HW_BUTTON, &rt2x00dev->flags))
return;
input_unregister_polled_device(rt2x00dev->poll_dev);
@ -108,7 +108,7 @@ int rt2x00rfkill_allocate(struct rt2x00_dev *rt2x00dev)
{
struct device *device = wiphy_dev(rt2x00dev->hw->wiphy);
if (!test_bit(DEVICE_SUPPORT_HW_BUTTON, &rt2x00dev->flags))
if (!test_bit(CONFIG_SUPPORT_HW_BUTTON, &rt2x00dev->flags))
return 0;
rt2x00dev->rfkill = rfkill_allocate(device, RFKILL_TYPE_WLAN);
@ -138,7 +138,7 @@ int rt2x00rfkill_allocate(struct rt2x00_dev *rt2x00dev)
void rt2x00rfkill_free(struct rt2x00_dev *rt2x00dev)
{
if (!test_bit(DEVICE_SUPPORT_HW_BUTTON, &rt2x00dev->flags))
if (!test_bit(CONFIG_SUPPORT_HW_BUTTON, &rt2x00dev->flags))
return;
input_free_polled_device(rt2x00dev->poll_dev);

4
drivers/net/wireless/rt2x00/rt61pci.c
View file

@ -2105,7 +2105,7 @@ static int rt61pci_init_eeprom(struct rt2x00_dev *rt2x00dev)
* Detect if this device has an hardware controlled radio.
*/
if (rt2x00_get_field16(eeprom, EEPROM_ANTENNA_HARDWARE_RADIO))
__set_bit(DEVICE_SUPPORT_HW_BUTTON, &rt2x00dev->flags);
__set_bit(CONFIG_SUPPORT_HW_BUTTON, &rt2x00dev->flags);
/*
* Read frequency offset and RF programming sequence.
@ -2360,7 +2360,7 @@ static int rt61pci_probe_hw(struct rt2x00_dev *rt2x00dev)
/*
* This device requires firmware
*/
__set_bit(REQUIRE_FIRMWARE, &rt2x00dev->flags);
__set_bit(DRIVER_REQUIRE_FIRMWARE, &rt2x00dev->flags);
/*
* Set the rssi offset.

2
drivers/net/wireless/rt2x00/rt73usb.c
View file

@ -1827,7 +1827,7 @@ static int rt73usb_probe_hw(struct rt2x00_dev *rt2x00dev)
/*
* This device requires firmware
*/
__set_bit(REQUIRE_FIRMWARE, &rt2x00dev->flags);
__set_bit(DRIVER_REQUIRE_FIRMWARE, &rt2x00dev->flags);
/*
* Set the rssi offset.