rt2x00: Convert rt2x00 to use generic DMA-mapping API
At the same time clean up the device administration a bit, by storing a pointer
to struct device instead of a void pointer that is dependent on the type of
device. The normal PCI and USB subsystem provided macros can be used to convert
the device pointer to the right type.
This makes the rt2x00 driver a bit more type-safe.
Signed-off-by: Gertjan van Wingerde <gwingerde@kpnplanet.nl>
Signed-off-by: Ivo van Doorn <IvDoorn@gmail.com>
Signed-off-by: John W. Linville <linville@tuxdriver.com>
diff --git a/drivers/net/wireless/rt2x00/rt2400pci.c b/drivers/net/wireless/rt2x00/rt2400pci.c
index bb3d835..76ec151 100644
--- a/drivers/net/wireless/rt2x00/rt2400pci.c
+++ b/drivers/net/wireless/rt2x00/rt2400pci.c
@@ -1366,7 +1366,7 @@
IEEE80211_HW_SIGNAL_DBM;
rt2x00dev->hw->extra_tx_headroom = 0;
- SET_IEEE80211_DEV(rt2x00dev->hw, &rt2x00dev_pci(rt2x00dev)->dev);
+ SET_IEEE80211_DEV(rt2x00dev->hw, rt2x00dev->dev);
SET_IEEE80211_PERM_ADDR(rt2x00dev->hw,
rt2x00_eeprom_addr(rt2x00dev,
EEPROM_MAC_ADDR_0));
diff --git a/drivers/net/wireless/rt2x00/rt2500pci.c b/drivers/net/wireless/rt2x00/rt2500pci.c
index 3c956b9..5f0117f 100644
--- a/drivers/net/wireless/rt2x00/rt2500pci.c
+++ b/drivers/net/wireless/rt2x00/rt2500pci.c
@@ -1688,7 +1688,7 @@
rt2x00dev->hw->extra_tx_headroom = 0;
- SET_IEEE80211_DEV(rt2x00dev->hw, &rt2x00dev_pci(rt2x00dev)->dev);
+ SET_IEEE80211_DEV(rt2x00dev->hw, rt2x00dev->dev);
SET_IEEE80211_PERM_ADDR(rt2x00dev->hw,
rt2x00_eeprom_addr(rt2x00dev,
EEPROM_MAC_ADDR_0));
diff --git a/drivers/net/wireless/rt2x00/rt2500usb.c b/drivers/net/wireless/rt2x00/rt2500usb.c
index 9851cef..6b6e7b9 100644
--- a/drivers/net/wireless/rt2x00/rt2500usb.c
+++ b/drivers/net/wireless/rt2x00/rt2500usb.c
@@ -1588,7 +1588,7 @@
rt2x00dev->hw->extra_tx_headroom = TXD_DESC_SIZE;
- SET_IEEE80211_DEV(rt2x00dev->hw, &rt2x00dev_usb(rt2x00dev)->dev);
+ SET_IEEE80211_DEV(rt2x00dev->hw, rt2x00dev->dev);
SET_IEEE80211_PERM_ADDR(rt2x00dev->hw,
rt2x00_eeprom_addr(rt2x00dev,
EEPROM_MAC_ADDR_0));
@@ -1672,7 +1672,8 @@
static int rt2500usb_beacon_update(struct ieee80211_hw *hw, struct sk_buff *skb)
{
struct rt2x00_dev *rt2x00dev = hw->priv;
- struct usb_device *usb_dev = rt2x00dev_usb_dev(rt2x00dev);
+ struct usb_device *usb_dev =
+ interface_to_usbdev(to_usb_interface(rt2x00dev->dev));
struct ieee80211_tx_info *tx_info = IEEE80211_SKB_CB(skb);
struct rt2x00_intf *intf = vif_to_intf(tx_info->control.vif);
struct queue_entry_priv_usb_bcn *bcn_priv;
diff --git a/drivers/net/wireless/rt2x00/rt2x00.h b/drivers/net/wireless/rt2x00/rt2x00.h
index 21fd9b4..8d45235 100644
--- a/drivers/net/wireless/rt2x00/rt2x00.h
+++ b/drivers/net/wireless/rt2x00/rt2x00.h
@@ -625,11 +625,7 @@
* When accessing this variable, the rt2x00dev_{pci,usb}
* macro's should be used for correct typecasting.
*/
- void *dev;
-#define rt2x00dev_pci(__dev) ( (struct pci_dev *)(__dev)->dev )
-#define rt2x00dev_usb(__dev) ( (struct usb_interface *)(__dev)->dev )
-#define rt2x00dev_usb_dev(__dev)\
- ( (struct usb_device *)interface_to_usbdev(rt2x00dev_usb(__dev)) )
+ struct device *dev;
/*
* Callback functions.
diff --git a/drivers/net/wireless/rt2x00/rt2x00pci.c b/drivers/net/wireless/rt2x00/rt2x00pci.c
index 8d6ad18..d613838 100644
--- a/drivers/net/wireless/rt2x00/rt2x00pci.c
+++ b/drivers/net/wireless/rt2x00/rt2x00pci.c
@@ -194,7 +194,6 @@
static int rt2x00pci_alloc_queue_dma(struct rt2x00_dev *rt2x00dev,
struct data_queue *queue)
{
- struct pci_dev *pci_dev = rt2x00dev_pci(rt2x00dev);
struct queue_entry_priv_pci *entry_priv;
void *addr;
dma_addr_t dma;
@@ -203,7 +202,8 @@
/*
* Allocate DMA memory for descriptor and buffer.
*/
- addr = pci_alloc_consistent(pci_dev, dma_size(queue), &dma);
+ addr = dma_alloc_coherent(rt2x00dev->dev, dma_size(queue), &dma,
+ GFP_KERNEL | GFP_DMA);
if (!addr)
return -ENOMEM;
@@ -226,19 +226,18 @@
static void rt2x00pci_free_queue_dma(struct rt2x00_dev *rt2x00dev,
struct data_queue *queue)
{
- struct pci_dev *pci_dev = rt2x00dev_pci(rt2x00dev);
struct queue_entry_priv_pci *entry_priv =
queue->entries[0].priv_data;
if (entry_priv->data)
- pci_free_consistent(pci_dev, dma_size(queue),
- entry_priv->data, entry_priv->data_dma);
+ dma_free_coherent(rt2x00dev->dev, dma_size(queue),
+ entry_priv->data, entry_priv->data_dma);
entry_priv->data = NULL;
}
int rt2x00pci_initialize(struct rt2x00_dev *rt2x00dev)
{
- struct pci_dev *pci_dev = rt2x00dev_pci(rt2x00dev);
+ struct pci_dev *pci_dev = to_pci_dev(rt2x00dev->dev);
struct data_queue *queue;
int status;
@@ -279,7 +278,7 @@
/*
* Free irq line.
*/
- free_irq(rt2x00dev_pci(rt2x00dev)->irq, rt2x00dev);
+ free_irq(to_pci_dev(rt2x00dev->dev)->irq, rt2x00dev);
/*
* Free DMA
@@ -308,7 +307,7 @@
static int rt2x00pci_alloc_reg(struct rt2x00_dev *rt2x00dev)
{
- struct pci_dev *pci_dev = rt2x00dev_pci(rt2x00dev);
+ struct pci_dev *pci_dev = to_pci_dev(rt2x00dev->dev);
rt2x00dev->csr.base = ioremap(pci_resource_start(pci_dev, 0),
pci_resource_len(pci_dev, 0));
@@ -357,7 +356,7 @@
if (pci_set_mwi(pci_dev))
ERROR_PROBE("MWI not available.\n");
- if (pci_set_dma_mask(pci_dev, DMA_32BIT_MASK)) {
+ if (dma_set_mask(&pci_dev->dev, DMA_32BIT_MASK)) {
ERROR_PROBE("PCI DMA not supported.\n");
retval = -EIO;
goto exit_disable_device;
@@ -373,7 +372,7 @@
pci_set_drvdata(pci_dev, hw);
rt2x00dev = hw->priv;
- rt2x00dev->dev = pci_dev;
+ rt2x00dev->dev = &pci_dev->dev;
rt2x00dev->ops = ops;
rt2x00dev->hw = hw;
diff --git a/drivers/net/wireless/rt2x00/rt2x00usb.c b/drivers/net/wireless/rt2x00/rt2x00usb.c
index 3080969..f91901f 100644
--- a/drivers/net/wireless/rt2x00/rt2x00usb.c
+++ b/drivers/net/wireless/rt2x00/rt2x00usb.c
@@ -40,7 +40,8 @@
void *buffer, const u16 buffer_length,
const int timeout)
{
- struct usb_device *usb_dev = rt2x00dev_usb_dev(rt2x00dev);
+ struct usb_device *usb_dev =
+ interface_to_usbdev(to_usb_interface(rt2x00dev->dev));
int status;
unsigned int i;
unsigned int pipe =
@@ -176,7 +177,8 @@
int rt2x00usb_write_tx_data(struct queue_entry *entry)
{
struct rt2x00_dev *rt2x00dev = entry->queue->rt2x00dev;
- struct usb_device *usb_dev = rt2x00dev_usb_dev(rt2x00dev);
+ struct usb_device *usb_dev =
+ interface_to_usbdev(to_usb_interface(rt2x00dev->dev));
struct queue_entry_priv_usb *entry_priv = entry->priv_data;
struct skb_frame_desc *skbdesc;
u32 length;
@@ -364,7 +366,8 @@
void rt2x00usb_init_rxentry(struct rt2x00_dev *rt2x00dev,
struct queue_entry *entry)
{
- struct usb_device *usb_dev = rt2x00dev_usb_dev(rt2x00dev);
+ struct usb_device *usb_dev =
+ interface_to_usbdev(to_usb_interface(rt2x00dev->dev));
struct queue_entry_priv_usb *entry_priv = entry->priv_data;
usb_fill_bulk_urb(entry_priv->urb, usb_dev,
@@ -558,7 +561,7 @@
usb_set_intfdata(usb_intf, hw);
rt2x00dev = hw->priv;
- rt2x00dev->dev = usb_intf;
+ rt2x00dev->dev = &usb_intf->dev;
rt2x00dev->ops = ops;
rt2x00dev->hw = hw;
mutex_init(&rt2x00dev->usb_cache_mutex);
diff --git a/drivers/net/wireless/rt2x00/rt61pci.c b/drivers/net/wireless/rt2x00/rt61pci.c
index 27f30ae..2a7f306 100644
--- a/drivers/net/wireless/rt2x00/rt61pci.c
+++ b/drivers/net/wireless/rt2x00/rt61pci.c
@@ -1973,7 +1973,7 @@
* To determine the RT chip we have to read the
* PCI header of the device.
*/
- pci_read_config_word(rt2x00dev_pci(rt2x00dev),
+ pci_read_config_word(to_pci_dev(rt2x00dev->dev),
PCI_CONFIG_HEADER_DEVICE, &device);
value = rt2x00_get_field16(eeprom, EEPROM_ANTENNA_RF_TYPE);
rt2x00pci_register_read(rt2x00dev, MAC_CSR0, ®);
@@ -2239,7 +2239,7 @@
IEEE80211_HW_SIGNAL_DBM;
rt2x00dev->hw->extra_tx_headroom = 0;
- SET_IEEE80211_DEV(rt2x00dev->hw, &rt2x00dev_pci(rt2x00dev)->dev);
+ SET_IEEE80211_DEV(rt2x00dev->hw, rt2x00dev->dev);
SET_IEEE80211_PERM_ADDR(rt2x00dev->hw,
rt2x00_eeprom_addr(rt2x00dev,
EEPROM_MAC_ADDR_0));
diff --git a/drivers/net/wireless/rt2x00/rt73usb.c b/drivers/net/wireless/rt2x00/rt73usb.c
index 42b7e98..ead6db04 100644
--- a/drivers/net/wireless/rt2x00/rt73usb.c
+++ b/drivers/net/wireless/rt2x00/rt73usb.c
@@ -1821,7 +1821,7 @@
IEEE80211_HW_SIGNAL_DBM;
rt2x00dev->hw->extra_tx_headroom = TXD_DESC_SIZE;
- SET_IEEE80211_DEV(rt2x00dev->hw, &rt2x00dev_usb(rt2x00dev)->dev);
+ SET_IEEE80211_DEV(rt2x00dev->hw, rt2x00dev->dev);
SET_IEEE80211_PERM_ADDR(rt2x00dev->hw,
rt2x00_eeprom_addr(rt2x00dev,
EEPROM_MAC_ADDR_0));