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Diffstat (limited to 'package/rt2x00/src/rt2x00pci.c')
-rw-r--r--package/rt2x00/src/rt2x00pci.c486
1 files changed, 0 insertions, 486 deletions
diff --git a/package/rt2x00/src/rt2x00pci.c b/package/rt2x00/src/rt2x00pci.c
deleted file mode 100644
index 04663eb..0000000
--- a/package/rt2x00/src/rt2x00pci.c
+++ /dev/null
@@ -1,486 +0,0 @@
-/*
- Copyright (C) 2004 - 2007 rt2x00 SourceForge Project
- <http://rt2x00.serialmonkey.com>
-
- This program is free software; you can redistribute it and/or modify
- it under the terms of the GNU General Public License as published by
- the Free Software Foundation; either version 2 of the License, or
- (at your option) any later version.
-
- This program is distributed in the hope that it will be useful,
- but WITHOUT ANY WARRANTY; without even the implied warranty of
- MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
- GNU General Public License for more details.
-
- You should have received a copy of the GNU General Public License
- along with this program; if not, write to the
- Free Software Foundation, Inc.,
- 59 Temple Place - Suite 330, Boston, MA 02111-1307, USA.
- */
-
-/*
- Module: rt2x00pci
- Abstract: rt2x00 generic pci device routines.
- */
-
-/*
- * Set enviroment defines for rt2x00.h
- */
-#define DRV_NAME "rt2x00pci"
-
-#include <linux/dma-mapping.h>
-#include <linux/kernel.h>
-#include <linux/module.h>
-#include <linux/pci.h>
-
-#include "rt2x00.h"
-#include "rt2x00pci.h"
-
-/*
- * Beacon handlers.
- */
-int rt2x00pci_beacon_update(struct ieee80211_hw *hw, struct sk_buff *skb,
- struct ieee80211_tx_control *control)
-{
- struct rt2x00_dev *rt2x00dev = hw->priv;
- struct data_ring *ring =
- rt2x00lib_get_ring(rt2x00dev, IEEE80211_TX_QUEUE_BEACON);
- struct data_entry *entry = rt2x00_get_data_entry(ring);
-
- /*
- * Just in case mac80211 doesn't set this correctly,
- * but we need this queue set for the descriptor
- * initialization.
- */
- control->queue = IEEE80211_TX_QUEUE_BEACON;
-
- /*
- * Update the beacon entry.
- */
- memcpy(entry->data_addr, skb->data, skb->len);
- rt2x00lib_write_tx_desc(rt2x00dev, entry->priv,
- (struct ieee80211_hdr *)skb->data,
- skb->len, control);
-
- /*
- * Enable beacon generation.
- */
- rt2x00dev->ops->lib->kick_tx_queue(rt2x00dev, control->queue);
-
- return 0;
-}
-EXPORT_SYMBOL_GPL(rt2x00pci_beacon_update);
-
-/*
- * TX data handlers.
- */
-int rt2x00pci_write_tx_data(struct rt2x00_dev *rt2x00dev,
- struct data_ring *ring, struct sk_buff *skb,
- struct ieee80211_tx_control *control)
-{
- struct ieee80211_hdr *ieee80211hdr = (struct ieee80211_hdr *)skb->data;
- struct data_entry *entry = rt2x00_get_data_entry(ring);
- struct data_desc *txd = entry->priv;
- u32 word;
-
- if (rt2x00_ring_full(ring)) {
- ieee80211_stop_queue(rt2x00dev->hw, control->queue);
- return -EINVAL;
- }
-
- rt2x00_desc_read(txd, 0, &word);
-
- if (rt2x00_get_field32(word, TXD_ENTRY_OWNER_NIC) ||
- rt2x00_get_field32(word, TXD_ENTRY_VALID)) {
- ERROR(rt2x00dev,
- "Arrived at non-free entry in the non-full queue %d.\n"
- "Please file bug report to %s.\n",
- control->queue, DRV_PROJECT);
- ieee80211_stop_queue(rt2x00dev->hw, control->queue);
- return -EINVAL;
- }
-
- entry->skb = skb;
- memcpy(&entry->tx_status.control, control, sizeof(*control));
- memcpy(entry->data_addr, skb->data, skb->len);
- rt2x00lib_write_tx_desc(rt2x00dev, txd, ieee80211hdr,
- skb->len, control);
-
- rt2x00_ring_index_inc(ring);
-
- if (rt2x00_ring_full(ring))
- ieee80211_stop_queue(rt2x00dev->hw, control->queue);
-
- return 0;
-}
-EXPORT_SYMBOL_GPL(rt2x00pci_write_tx_data);
-
-/*
- * RX data handlers.
- */
-void rt2x00pci_rxdone(struct rt2x00_dev *rt2x00dev)
-{
- struct data_ring *ring = rt2x00dev->rx;
- struct data_entry *entry;
- struct data_desc *rxd;
- struct sk_buff *skb;
- struct ieee80211_hdr *hdr;
- struct rxdata_entry_desc desc;
- int header_size;
- int align;
- u32 word;
-
- while (1) {
- entry = rt2x00_get_data_entry(ring);
- rxd = entry->priv;
- rt2x00_desc_read(rxd, 0, &word);
-
- if (rt2x00_get_field32(word, RXD_ENTRY_OWNER_NIC))
- break;
-
- memset(&desc, 0x00, sizeof(desc));
- rt2x00dev->ops->lib->fill_rxdone(entry, &desc);
-
- hdr = (struct ieee80211_hdr *)entry->data_addr;
- header_size =
- ieee80211_get_hdrlen(le16_to_cpu(hdr->frame_control));
-
- /*
- * The data behind the ieee80211 header must be
- * aligned on a 4 byte boundary.
- */
- align = header_size % 4;
-
- /*
- * Allocate the sk_buffer, initialize it and copy
- * all data into it.
- */
- skb = dev_alloc_skb(desc.size + align);
- if (!skb)
- return;
-
- skb_reserve(skb, align);
- memcpy(skb_put(skb, desc.size), entry->data_addr, desc.size);
-
- /*
- * Send the frame to rt2x00lib for further processing.
- */
- rt2x00lib_rxdone(entry, skb, &desc);
-
- if (test_bit(DEVICE_ENABLED_RADIO, &ring->rt2x00dev->flags)) {
- rt2x00_set_field32(&word, RXD_ENTRY_OWNER_NIC, 1);
- rt2x00_desc_write(rxd, 0, word);
- }
-
- rt2x00_ring_index_inc(ring);
- }
-}
-EXPORT_SYMBOL_GPL(rt2x00pci_rxdone);
-
-/*
- * Device initialization handlers.
- */
-#define priv_offset(__ring, __i) \
-({ \
- ring->data_addr + (i * ring->desc_size); \
-})
-
-#define data_addr_offset(__ring, __i) \
-({ \
- (__ring)->data_addr + \
- ((__ring)->stats.limit * (__ring)->desc_size) + \
- ((__i) * (__ring)->data_size); \
-})
-
-#define data_dma_offset(__ring, __i) \
-({ \
- (__ring)->data_dma + \
- ((__ring)->stats.limit * (__ring)->desc_size) + \
- ((__i) * (__ring)->data_size); \
-})
-
-static int rt2x00pci_alloc_dma(struct rt2x00_dev *rt2x00dev,
- struct data_ring *ring)
-{
- unsigned int i;
-
- /*
- * Allocate DMA memory for descriptor and buffer.
- */
- ring->data_addr = pci_alloc_consistent(rt2x00dev_pci(rt2x00dev),
- rt2x00_get_ring_size(ring),
- &ring->data_dma);
- if (!ring->data_addr)
- return -ENOMEM;
-
- /*
- * Initialize all ring entries to contain valid
- * addresses.
- */
- for (i = 0; i < ring->stats.limit; i++) {
- ring->entry[i].priv = priv_offset(ring, i);
- ring->entry[i].data_addr = data_addr_offset(ring, i);
- ring->entry[i].data_dma = data_dma_offset(ring, i);
- }
-
- return 0;
-}
-
-static void rt2x00pci_free_dma(struct rt2x00_dev *rt2x00dev,
- struct data_ring *ring)
-{
- if (ring->data_addr)
- pci_free_consistent(rt2x00dev_pci(rt2x00dev),
- rt2x00_get_ring_size(ring),
- ring->data_addr, ring->data_dma);
- ring->data_addr = NULL;
-}
-
-int rt2x00pci_initialize(struct rt2x00_dev *rt2x00dev)
-{
- struct pci_dev *pci_dev = rt2x00dev_pci(rt2x00dev);
- struct data_ring *ring;
- int status;
-
- /*
- * Allocate DMA
- */
- ring_for_each(rt2x00dev, ring) {
- status = rt2x00pci_alloc_dma(rt2x00dev, ring);
- if (status)
- goto exit;
- }
-
- /*
- * Register interrupt handler.
- */
- status = request_irq(pci_dev->irq, rt2x00dev->ops->lib->irq_handler,
- IRQF_SHARED, pci_name(pci_dev), rt2x00dev);
- if (status) {
- ERROR(rt2x00dev, "IRQ %d allocation failed (error %d).\n",
- pci_dev->irq, status);
- return status;
- }
-
- return 0;
-
-exit:
- rt2x00pci_uninitialize(rt2x00dev);
-
- return status;
-}
-EXPORT_SYMBOL_GPL(rt2x00pci_initialize);
-
-void rt2x00pci_uninitialize(struct rt2x00_dev *rt2x00dev)
-{
- struct data_ring *ring;
-
- /*
- * Free irq line.
- */
- free_irq(rt2x00dev_pci(rt2x00dev)->irq, rt2x00dev);
-
- /*
- * Free DMA
- */
- ring_for_each(rt2x00dev, ring)
- rt2x00pci_free_dma(rt2x00dev, ring);
-}
-EXPORT_SYMBOL_GPL(rt2x00pci_uninitialize);
-
-/*
- * PCI driver handlers.
- */
-static void rt2x00pci_free_reg(struct rt2x00_dev *rt2x00dev)
-{
- kfree(rt2x00dev->rf);
- rt2x00dev->rf = NULL;
-
- kfree(rt2x00dev->eeprom);
- rt2x00dev->eeprom = NULL;
-
- if (rt2x00dev->csr_addr) {
- iounmap(rt2x00dev->csr_addr);
- rt2x00dev->csr_addr = NULL;
- }
-}
-
-static int rt2x00pci_alloc_reg(struct rt2x00_dev *rt2x00dev)
-{
- struct pci_dev *pci_dev = rt2x00dev_pci(rt2x00dev);
-
- rt2x00dev->csr_addr = ioremap(pci_resource_start(pci_dev, 0),
- pci_resource_len(pci_dev, 0));
- if (!rt2x00dev->csr_addr)
- goto exit;
-
- rt2x00dev->eeprom = kzalloc(rt2x00dev->ops->eeprom_size, GFP_KERNEL);
- if (!rt2x00dev->eeprom)
- goto exit;
-
- rt2x00dev->rf = kzalloc(rt2x00dev->ops->rf_size, GFP_KERNEL);
- if (!rt2x00dev->rf)
- goto exit;
-
- return 0;
-
-exit:
- ERROR_PROBE("Failed to allocate registers.\n");
-
- rt2x00pci_free_reg(rt2x00dev);
-
- return -ENOMEM;
-}
-
-int rt2x00pci_probe(struct pci_dev *pci_dev, const struct pci_device_id *id)
-{
- struct rt2x00_ops *ops = (struct rt2x00_ops *)id->driver_data;
- struct ieee80211_hw *hw;
- struct rt2x00_dev *rt2x00dev;
- int retval;
-
- retval = pci_request_regions(pci_dev, pci_name(pci_dev));
- if (retval) {
- ERROR_PROBE("PCI request regions failed.\n");
- return retval;
- }
-
- retval = pci_enable_device(pci_dev);
- if (retval) {
- ERROR_PROBE("Enable device failed.\n");
- goto exit_release_regions;
- }
-
- pci_set_master(pci_dev);
-
- if (pci_set_mwi(pci_dev))
- ERROR_PROBE("MWI not available.\n");
-
- if (pci_set_dma_mask(pci_dev, DMA_64BIT_MASK) &&
- pci_set_dma_mask(pci_dev, DMA_32BIT_MASK)) {
- ERROR_PROBE("PCI DMA not supported.\n");
- retval = -EIO;
- goto exit_disable_device;
- }
-
- hw = ieee80211_alloc_hw(sizeof(struct rt2x00_dev), ops->hw);
- if (!hw) {
- ERROR_PROBE("Failed to allocate hardware.\n");
- retval = -ENOMEM;
- goto exit_disable_device;
- }
-
- pci_set_drvdata(pci_dev, hw);
-
- rt2x00dev = hw->priv;
- rt2x00dev->dev = pci_dev;
- rt2x00dev->ops = ops;
- rt2x00dev->hw = hw;
-
- retval = rt2x00pci_alloc_reg(rt2x00dev);
- if (retval)
- goto exit_free_device;
-
- retval = rt2x00lib_probe_dev(rt2x00dev);
- if (retval)
- goto exit_free_reg;
-
- return 0;
-
-exit_free_reg:
- rt2x00pci_free_reg(rt2x00dev);
-
-exit_free_device:
- ieee80211_free_hw(hw);
-
-exit_disable_device:
- if (retval != -EBUSY)
- pci_disable_device(pci_dev);
-
-exit_release_regions:
- pci_release_regions(pci_dev);
-
- pci_set_drvdata(pci_dev, NULL);
-
- return retval;
-}
-EXPORT_SYMBOL_GPL(rt2x00pci_probe);
-
-void rt2x00pci_remove(struct pci_dev *pci_dev)
-{
- struct ieee80211_hw *hw = pci_get_drvdata(pci_dev);
- struct rt2x00_dev *rt2x00dev = hw->priv;
-
- /*
- * Free all allocated data.
- */
- rt2x00lib_remove_dev(rt2x00dev);
- rt2x00pci_free_reg(rt2x00dev);
- ieee80211_free_hw(hw);
-
- /*
- * Free the PCI device data.
- */
- pci_set_drvdata(pci_dev, NULL);
- pci_disable_device(pci_dev);
- pci_release_regions(pci_dev);
-}
-EXPORT_SYMBOL_GPL(rt2x00pci_remove);
-
-#ifdef CONFIG_PM
-int rt2x00pci_suspend(struct pci_dev *pci_dev, pm_message_t state)
-{
- struct ieee80211_hw *hw = pci_get_drvdata(pci_dev);
- struct rt2x00_dev *rt2x00dev = hw->priv;
- int retval;
-
- retval = rt2x00lib_suspend(rt2x00dev, state);
- if (retval)
- return retval;
-
- rt2x00pci_free_reg(rt2x00dev);
-
- pci_save_state(pci_dev);
- pci_disable_device(pci_dev);
- return pci_set_power_state(pci_dev, pci_choose_state(pci_dev, state));
-}
-EXPORT_SYMBOL_GPL(rt2x00pci_suspend);
-
-int rt2x00pci_resume(struct pci_dev *pci_dev)
-{
- struct ieee80211_hw *hw = pci_get_drvdata(pci_dev);
- struct rt2x00_dev *rt2x00dev = hw->priv;
- int retval;
-
- if (pci_set_power_state(pci_dev, PCI_D0) ||
- pci_enable_device(pci_dev) ||
- pci_restore_state(pci_dev)) {
- ERROR(rt2x00dev, "Failed to resume device.\n");
- return -EIO;
- }
-
- retval = rt2x00pci_alloc_reg(rt2x00dev);
- if (retval)
- return retval;
-
- retval = rt2x00lib_resume(rt2x00dev);
- if (retval)
- goto exit_free_reg;
-
- return 0;
-
-exit_free_reg:
- rt2x00pci_free_reg(rt2x00dev);
-
- return retval;
-}
-EXPORT_SYMBOL_GPL(rt2x00pci_resume);
-#endif /* CONFIG_PM */
-
-/*
- * rt2x00pci module information.
- */
-MODULE_AUTHOR(DRV_PROJECT);
-MODULE_VERSION(DRV_VERSION);
-MODULE_DESCRIPTION("rt2x00 library");
-MODULE_LICENSE("GPL");
generated by cgit v1.1 at 2024-12-17 09:39:06 +0000