summaryrefslogtreecommitdiff
path: root/drivers/net/wireless/rt2x00/rt2x00pci.c
diff options
context:
space:
mode:
Diffstat (limited to 'drivers/net/wireless/rt2x00/rt2x00pci.c')
-rw-r--r--drivers/net/wireless/rt2x00/rt2x00pci.c190
1 files changed, 7 insertions, 183 deletions
diff --git a/drivers/net/wireless/rt2x00/rt2x00pci.c b/drivers/net/wireless/rt2x00/rt2x00pci.c
index a0c8caef3b0a..dc49e525ae5e 100644
--- a/drivers/net/wireless/rt2x00/rt2x00pci.c
+++ b/drivers/net/wireless/rt2x00/rt2x00pci.c
@@ -33,182 +33,6 @@
#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;
-
- if (!test_bit(DEVICE_STATE_PRESENT, &rt2x00dev->flags))
- return 0;
-
- 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);
-
-bool rt2x00pci_rxdone(struct rt2x00_dev *rt2x00dev)
-{
- struct data_queue *queue = rt2x00dev->rx;
- struct queue_entry *entry;
- struct queue_entry_priv_pci *entry_priv;
- struct skb_frame_desc *skbdesc;
- int max_rx = 16;
-
- while (--max_rx) {
- entry = rt2x00queue_get_entry(queue, Q_INDEX);
- entry_priv = entry->priv_data;
-
- if (rt2x00dev->ops->lib->get_entry_state(entry))
- break;
-
- /*
- * Fill in desc fields of the skb descriptor
- */
- skbdesc = get_skb_frame_desc(entry->skb);
- skbdesc->desc = entry_priv->desc;
- skbdesc->desc_len = entry->queue->desc_size;
-
- /*
- * DMA is already done, notify rt2x00lib that
- * it finished successfully.
- */
- rt2x00lib_dmastart(entry);
- rt2x00lib_dmadone(entry);
-
- /*
- * Send the frame to rt2x00lib for further processing.
- */
- rt2x00lib_rxdone(entry, GFP_ATOMIC);
- }
-
- return !max_rx;
-}
-EXPORT_SYMBOL_GPL(rt2x00pci_rxdone);
-
-void rt2x00pci_flush_queue(struct data_queue *queue, bool drop)
-{
- unsigned int i;
-
- for (i = 0; !rt2x00queue_empty(queue) && i < 10; i++)
- msleep(10);
-}
-EXPORT_SYMBOL_GPL(rt2x00pci_flush_queue);
-
-/*
- * Device initialization handlers.
- */
-static int rt2x00pci_alloc_queue_dma(struct rt2x00_dev *rt2x00dev,
- struct data_queue *queue)
-{
- struct queue_entry_priv_pci *entry_priv;
- void *addr;
- dma_addr_t dma;
- unsigned int i;
-
- /*
- * Allocate DMA memory for descriptor and buffer.
- */
- addr = dma_alloc_coherent(rt2x00dev->dev,
- queue->limit * queue->desc_size,
- &dma, GFP_KERNEL);
- if (!addr)
- return -ENOMEM;
-
- memset(addr, 0, queue->limit * queue->desc_size);
-
- /*
- * Initialize all queue entries to contain valid addresses.
- */
- for (i = 0; i < queue->limit; i++) {
- entry_priv = queue->entries[i].priv_data;
- entry_priv->desc = addr + i * queue->desc_size;
- entry_priv->desc_dma = dma + i * queue->desc_size;
- }
-
- return 0;
-}
-
-static void rt2x00pci_free_queue_dma(struct rt2x00_dev *rt2x00dev,
- struct data_queue *queue)
-{
- struct queue_entry_priv_pci *entry_priv =
- queue->entries[0].priv_data;
-
- if (entry_priv->desc)
- dma_free_coherent(rt2x00dev->dev,
- queue->limit * queue->desc_size,
- entry_priv->desc, entry_priv->desc_dma);
- entry_priv->desc = NULL;
-}
-
-int rt2x00pci_initialize(struct rt2x00_dev *rt2x00dev)
-{
- struct data_queue *queue;
- int status;
-
- /*
- * Allocate DMA
- */
- queue_for_each(rt2x00dev, queue) {
- status = rt2x00pci_alloc_queue_dma(rt2x00dev, queue);
- if (status)
- goto exit;
- }
-
- /*
- * Register interrupt handler.
- */
- status = request_irq(rt2x00dev->irq,
- rt2x00dev->ops->lib->irq_handler,
- IRQF_SHARED, rt2x00dev->name, rt2x00dev);
- if (status) {
- ERROR(rt2x00dev, "IRQ %d allocation failed (error %d).\n",
- rt2x00dev->irq, status);
- goto exit;
- }
-
- return 0;
-
-exit:
- queue_for_each(rt2x00dev, queue)
- rt2x00pci_free_queue_dma(rt2x00dev, queue);
-
- return status;
-}
-EXPORT_SYMBOL_GPL(rt2x00pci_initialize);
-
-void rt2x00pci_uninitialize(struct rt2x00_dev *rt2x00dev)
-{
- struct data_queue *queue;
-
- /*
- * Free irq line.
- */
- free_irq(rt2x00dev->irq, rt2x00dev);
-
- /*
- * Free DMA
- */
- queue_for_each(rt2x00dev, queue)
- rt2x00pci_free_queue_dma(rt2x00dev, queue);
-}
-EXPORT_SYMBOL_GPL(rt2x00pci_uninitialize);
-
-/*
* PCI driver handlers.
*/
static void rt2x00pci_free_reg(struct rt2x00_dev *rt2x00dev)
@@ -244,7 +68,7 @@ static int rt2x00pci_alloc_reg(struct rt2x00_dev *rt2x00dev)
return 0;
exit:
- ERROR_PROBE("Failed to allocate registers.\n");
+ rt2x00_probe_err("Failed to allocate registers\n");
rt2x00pci_free_reg(rt2x00dev);
@@ -260,30 +84,30 @@ int rt2x00pci_probe(struct pci_dev *pci_dev, const struct rt2x00_ops *ops)
retval = pci_enable_device(pci_dev);
if (retval) {
- ERROR_PROBE("Enable device failed.\n");
+ rt2x00_probe_err("Enable device failed\n");
return retval;
}
retval = pci_request_regions(pci_dev, pci_name(pci_dev));
if (retval) {
- ERROR_PROBE("PCI request regions failed.\n");
+ rt2x00_probe_err("PCI request regions failed\n");
goto exit_disable_device;
}
pci_set_master(pci_dev);
if (pci_set_mwi(pci_dev))
- ERROR_PROBE("MWI not available.\n");
+ rt2x00_probe_err("MWI not available\n");
if (dma_set_mask(&pci_dev->dev, DMA_BIT_MASK(32))) {
- ERROR_PROBE("PCI DMA not supported.\n");
+ rt2x00_probe_err("PCI DMA not supported\n");
retval = -EIO;
goto exit_release_regions;
}
hw = ieee80211_alloc_hw(sizeof(struct rt2x00_dev), ops->hw);
if (!hw) {
- ERROR_PROBE("Failed to allocate hardware.\n");
+ rt2x00_probe_err("Failed to allocate hardware\n");
retval = -ENOMEM;
goto exit_release_regions;
}
@@ -383,7 +207,7 @@ int rt2x00pci_resume(struct pci_dev *pci_dev)
if (pci_set_power_state(pci_dev, PCI_D0) ||
pci_enable_device(pci_dev)) {
- ERROR(rt2x00dev, "Failed to resume device.\n");
+ rt2x00_err(rt2x00dev, "Failed to resume device\n");
return -EIO;
}