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path: root/drivers/net/wireless/rt2x00/rt2x00pci.c
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Diffstat (limited to 'drivers/net/wireless/rt2x00/rt2x00pci.c')
-rw-r--r--drivers/net/wireless/rt2x00/rt2x00pci.c41
1 files changed, 30 insertions, 11 deletions
diff --git a/drivers/net/wireless/rt2x00/rt2x00pci.c b/drivers/net/wireless/rt2x00/rt2x00pci.c
index adf2876ed8ab..d52b22b82d1f 100644
--- a/drivers/net/wireless/rt2x00/rt2x00pci.c
+++ b/drivers/net/wireless/rt2x00/rt2x00pci.c
@@ -32,24 +32,46 @@
#include "rt2x00pci.h"
/*
+ * Register access.
+ */
+int rt2x00pci_regbusy_read(struct rt2x00_dev *rt2x00dev,
+ const unsigned int offset,
+ const struct rt2x00_field32 field,
+ u32 *reg)
+{
+ unsigned int i;
+
+ for (i = 0; i < REGISTER_BUSY_COUNT; i++) {
+ rt2x00pci_register_read(rt2x00dev, offset, reg);
+ if (!rt2x00_get_field32(*reg, field))
+ return 1;
+ udelay(REGISTER_BUSY_DELAY);
+ }
+
+ ERROR(rt2x00dev, "Indirect register access failed: "
+ "offset=0x%.08x, value=0x%.08x\n", offset, *reg);
+ *reg = ~0;
+
+ return 0;
+}
+EXPORT_SYMBOL_GPL(rt2x00pci_regbusy_read);
+
+/*
* TX data handlers.
*/
int rt2x00pci_write_tx_data(struct queue_entry *entry)
{
+ struct rt2x00_dev *rt2x00dev = entry->queue->rt2x00dev;
struct queue_entry_priv_pci *entry_priv = entry->priv_data;
struct skb_frame_desc *skbdesc;
- u32 word;
-
- rt2x00_desc_read(entry_priv->desc, 0, &word);
/*
* This should not happen, we already checked the entry
* was ours. When the hardware disagrees there has been
* a queue corruption!
*/
- if (unlikely(rt2x00_get_field32(word, TXD_ENTRY_OWNER_NIC) ||
- rt2x00_get_field32(word, TXD_ENTRY_VALID))) {
- ERROR(entry->queue->rt2x00dev,
+ if (unlikely(rt2x00dev->ops->lib->get_entry_state(entry))) {
+ ERROR(rt2x00dev,
"Corrupt queue %d, accessing entry which is not ours.\n"
"Please file bug report to %s.\n",
entry->queue->qid, DRV_PROJECT);
@@ -76,14 +98,12 @@ void rt2x00pci_rxdone(struct rt2x00_dev *rt2x00dev)
struct queue_entry *entry;
struct queue_entry_priv_pci *entry_priv;
struct skb_frame_desc *skbdesc;
- u32 word;
while (1) {
entry = rt2x00queue_get_entry(queue, Q_INDEX);
entry_priv = entry->priv_data;
- rt2x00_desc_read(entry_priv->desc, 0, &word);
- if (rt2x00_get_field32(word, RXD_ENTRY_OWNER_NIC))
+ if (rt2x00dev->ops->lib->get_entry_state(entry))
break;
/*
@@ -222,8 +242,7 @@ static int rt2x00pci_alloc_reg(struct rt2x00_dev *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));
+ rt2x00dev->csr.base = pci_ioremap_bar(pci_dev, 0);
if (!rt2x00dev->csr.base)
goto exit;