1 files changed, 41 insertions, 361 deletions

diff --git a/drivers/net/wireless/rt2x00/rt2x00pci.c b/drivers/net/wireless/rt2x00/rt2x00pci.c
index 7867ec64bd2..d93db4b0371 100644
--- a/drivers/net/wireless/rt2x00/rt2x00pci.c
+++ b/drivers/net/wireless/rt2x00/rt2x00pci.c
@@ -1,5 +1,5 @@
 /*
-	Copyright (C) 2004 - 2008 rt2x00 SourceForge Project
+	Copyright (C) 2004 - 2009 Ivo van Doorn <IvDoorn@gmail.com>
 	<http://rt2x00.serialmonkey.com>
 
 	This program is free software; you can redistribute it and/or modify
@@ -13,9 +13,7 @@
 	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.
+	along with this program; if not, see <http://www.gnu.org/licenses/>.
  */
 
 /*
@@ -27,323 +25,12 @@
 #include <linux/kernel.h>
 #include <linux/module.h>
 #include <linux/pci.h>
+#include <linux/slab.h>
 
 #include "rt2x00.h"
 #include "rt2x00pci.h"
 
 /*
- * TX data handlers.
- */
-int rt2x00pci_write_tx_data(struct rt2x00_dev *rt2x00dev,
-			    struct data_queue *queue, struct sk_buff *skb,
-			    struct ieee80211_tx_control *control)
-{
-	struct queue_entry *entry = rt2x00queue_get_entry(queue, Q_INDEX);
-	struct queue_entry_priv_pci_tx *priv_tx = entry->priv_data;
-	struct skb_frame_desc *skbdesc;
-	u32 word;
-
-	if (rt2x00queue_full(queue))
-		return -EINVAL;
-
-	rt2x00_desc_read(priv_tx->desc, 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);
-		return -EINVAL;
-	}
-
-	/*
-	 * Fill in skb descriptor
-	 */
-	skbdesc = get_skb_frame_desc(skb);
-	skbdesc->data = skb->data;
-	skbdesc->data_len = skb->len;
-	skbdesc->desc = priv_tx->desc;
-	skbdesc->desc_len = queue->desc_size;
-	skbdesc->entry = entry;
-
-	memcpy(&priv_tx->control, control, sizeof(priv_tx->control));
-	memcpy(priv_tx->data, skb->data, skb->len);
-	rt2x00lib_write_tx_desc(rt2x00dev, skb, control);
-
-	rt2x00queue_index_inc(queue, Q_INDEX);
-
-	return 0;
-}
-EXPORT_SYMBOL_GPL(rt2x00pci_write_tx_data);
-
-/*
- * TX/RX data handlers.
- */
-void rt2x00pci_rxdone(struct rt2x00_dev *rt2x00dev)
-{
-	struct data_queue *queue = rt2x00dev->rx;
-	struct queue_entry *entry;
-	struct queue_entry_priv_pci_rx *priv_rx;
-	struct ieee80211_hdr *hdr;
-	struct skb_frame_desc *skbdesc;
-	struct rxdone_entry_desc rxdesc;
-	int header_size;
-	int align;
-	u32 word;
-
-	while (1) {
-		entry = rt2x00queue_get_entry(queue, Q_INDEX);
-		priv_rx = entry->priv_data;
-		rt2x00_desc_read(priv_rx->desc, 0, &word);
-
-		if (rt2x00_get_field32(word, RXD_ENTRY_OWNER_NIC))
-			break;
-
-		memset(&rxdesc, 0, sizeof(rxdesc));
-		rt2x00dev->ops->lib->fill_rxdone(entry, &rxdesc);
-
-		hdr = (struct ieee80211_hdr *)priv_rx->data;
-		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.
-		 */
-		entry->skb = dev_alloc_skb(rxdesc.size + align);
-		if (!entry->skb)
-			return;
-
-		skb_reserve(entry->skb, align);
-		memcpy(skb_put(entry->skb, rxdesc.size),
-		       priv_rx->data, rxdesc.size);
-
-		/*
-		 * Fill in skb descriptor
-		 */
-		skbdesc = get_skb_frame_desc(entry->skb);
-		memset(skbdesc, 0, sizeof(*skbdesc));
-		skbdesc->data = entry->skb->data;
-		skbdesc->data_len = entry->skb->len;
-		skbdesc->desc = priv_rx->desc;
-		skbdesc->desc_len = queue->desc_size;
-		skbdesc->entry = entry;
-
-		/*
-		 * Send the frame to rt2x00lib for further processing.
-		 */
-		rt2x00lib_rxdone(entry, &rxdesc);
-
-		if (test_bit(DEVICE_ENABLED_RADIO, &queue->rt2x00dev->flags)) {
-			rt2x00_set_field32(&word, RXD_ENTRY_OWNER_NIC, 1);
-			rt2x00_desc_write(priv_rx->desc, 0, word);
-		}
-
-		rt2x00queue_index_inc(queue, Q_INDEX);
-	}
-}
-EXPORT_SYMBOL_GPL(rt2x00pci_rxdone);
-
-void rt2x00pci_txdone(struct rt2x00_dev *rt2x00dev, struct queue_entry *entry,
-		      struct txdone_entry_desc *txdesc)
-{
-	struct queue_entry_priv_pci_tx *priv_tx = entry->priv_data;
-	u32 word;
-
-	txdesc->control = &priv_tx->control;
-	rt2x00lib_txdone(entry, txdesc);
-
-	/*
-	 * Make this entry available for reuse.
-	 */
-	entry->flags = 0;
-
-	rt2x00_desc_read(priv_tx->desc, 0, &word);
-	rt2x00_set_field32(&word, TXD_ENTRY_OWNER_NIC, 0);
-	rt2x00_set_field32(&word, TXD_ENTRY_VALID, 0);
-	rt2x00_desc_write(priv_tx->desc, 0, word);
-
-	rt2x00queue_index_inc(entry->queue, Q_INDEX_DONE);
-
-	/*
-	 * If the data queue was full before the txdone handler
-	 * we must make sure the packet queue in the mac80211 stack
-	 * is reenabled when the txdone handler has finished.
-	 */
-	if (!rt2x00queue_full(entry->queue))
-		ieee80211_wake_queue(rt2x00dev->hw, priv_tx->control.queue);
-
-}
-EXPORT_SYMBOL_GPL(rt2x00pci_txdone);
-
-/*
- * Device initialization handlers.
- */
-#define desc_size(__queue)			\
-({						\
-	 ((__queue)->limit * (__queue)->desc_size);\
-})
-
-#define data_size(__queue)			\
-({						\
-	 ((__queue)->limit * (__queue)->data_size);\
-})
-
-#define dma_size(__queue)			\
-({						\
-	data_size(__queue) + desc_size(__queue);\
-})
-
-#define desc_offset(__queue, __base, __i)	\
-({						\
-	(__base) + data_size(__queue) + 	\
-	    ((__i) * (__queue)->desc_size);	\
-})
-
-#define data_offset(__queue, __base, __i)	\
-({						\
-	(__base) +				\
-	    ((__i) * (__queue)->data_size);	\
-})
-
-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_rx *priv_rx;
-	struct queue_entry_priv_pci_tx *priv_tx;
-	void *addr;
-	dma_addr_t dma;
-	void *desc_addr;
-	dma_addr_t desc_dma;
-	void *data_addr;
-	dma_addr_t data_dma;
-	unsigned int i;
-
-	/*
-	 * Allocate DMA memory for descriptor and buffer.
-	 */
-	addr = pci_alloc_consistent(pci_dev, dma_size(queue), &dma);
-	if (!addr)
-		return -ENOMEM;
-
-	memset(addr, 0, dma_size(queue));
-
-	/*
-	 * Initialize all queue entries to contain valid addresses.
-	 */
-	for (i = 0; i < queue->limit; i++) {
-		desc_addr = desc_offset(queue, addr, i);
-		desc_dma = desc_offset(queue, dma, i);
-		data_addr = data_offset(queue, addr, i);
-		data_dma = data_offset(queue, dma, i);
-
-		if (queue->qid == QID_RX) {
-			priv_rx = queue->entries[i].priv_data;
-			priv_rx->desc = desc_addr;
-			priv_rx->desc_dma = desc_dma;
-			priv_rx->data = data_addr;
-			priv_rx->data_dma = data_dma;
-		} else {
-			priv_tx = queue->entries[i].priv_data;
-			priv_tx->desc = desc_addr;
-			priv_tx->desc_dma = desc_dma;
-			priv_tx->data = data_addr;
-			priv_tx->data_dma = data_dma;
-		}
-	}
-
-	return 0;
-}
-
-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_rx *priv_rx;
-	struct queue_entry_priv_pci_tx *priv_tx;
-	void *data_addr;
-	dma_addr_t data_dma;
-
-	if (queue->qid == QID_RX) {
-		priv_rx = queue->entries[0].priv_data;
-		data_addr = priv_rx->data;
-		data_dma = priv_rx->data_dma;
-
-		priv_rx->data = NULL;
-	} else {
-		priv_tx = queue->entries[0].priv_data;
-		data_addr = priv_tx->data;
-		data_dma = priv_tx->data_dma;
-
-		priv_tx->data = NULL;
-	}
-
-	if (data_addr)
-		pci_free_consistent(pci_dev, dma_size(queue),
-				    data_addr, data_dma);
-}
-
-int rt2x00pci_initialize(struct rt2x00_dev *rt2x00dev)
-{
-	struct pci_dev *pci_dev = rt2x00dev_pci(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(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_queue *queue;
-
-	/*
-	 * Free irq line.
-	 */
-	free_irq(rt2x00dev_pci(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)
@@ -362,10 +49,9 @@ static void rt2x00pci_free_reg(struct rt2x00_dev *rt2x00dev)
 
 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));
+	rt2x00dev->csr.base = pci_ioremap_bar(pci_dev, 0);
 	if (!rt2x00dev->csr.base)
 		goto exit;
 
@@ -380,62 +66,76 @@ 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);
 
 	return -ENOMEM;
 }
 
-int rt2x00pci_probe(struct pci_dev *pci_dev, const struct pci_device_id *id)
+int rt2x00pci_probe(struct pci_dev *pci_dev, const struct rt2x00_ops *ops)
 {
-	struct rt2x00_ops *ops = (struct rt2x00_ops *)id->driver_data;
 	struct ieee80211_hw *hw;
 	struct rt2x00_dev *rt2x00dev;
 	int retval;
+	u16 chip;
 
-	retval = pci_request_regions(pci_dev, pci_name(pci_dev));
+	retval = pci_enable_device(pci_dev);
 	if (retval) {
-		ERROR_PROBE("PCI request regions failed.\n");
+		rt2x00_probe_err("Enable device failed\n");
 		return retval;
 	}
 
-	retval = pci_enable_device(pci_dev);
+	retval = pci_request_regions(pci_dev, pci_name(pci_dev));
 	if (retval) {
-		ERROR_PROBE("Enable device failed.\n");
-		goto exit_release_regions;
+		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 (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");
+	if (dma_set_mask(&pci_dev->dev, DMA_BIT_MASK(32))) {
+		rt2x00_probe_err("PCI DMA not supported\n");
 		retval = -EIO;
-		goto exit_disable_device;
+		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_disable_device;
+		goto exit_release_regions;
 	}
 
 	pci_set_drvdata(pci_dev, hw);
 
 	rt2x00dev = hw->priv;
-	rt2x00dev->dev = pci_dev;
+	rt2x00dev->dev = &pci_dev->dev;
 	rt2x00dev->ops = ops;
 	rt2x00dev->hw = hw;
+	rt2x00dev->irq = pci_dev->irq;
+	rt2x00dev->name = ops->name;
+
+	if (pci_is_pcie(pci_dev))
+		rt2x00_set_chip_intf(rt2x00dev, RT2X00_CHIP_INTF_PCIE);
+	else
+		rt2x00_set_chip_intf(rt2x00dev, RT2X00_CHIP_INTF_PCI);
 
 	retval = rt2x00pci_alloc_reg(rt2x00dev);
 	if (retval)
 		goto exit_free_device;
 
+	/*
+	 * Because rt3290 chip use different efuse offset to read efuse data.
+	 * So before read efuse it need to indicate it is the
+	 * rt3290 or not.
+	 */
+	pci_read_config_word(pci_dev, PCI_DEVICE_ID, &chip);
+	rt2x00dev->chip.rt = chip;
+
 	retval = rt2x00lib_probe_dev(rt2x00dev);
 	if (retval)
 		goto exit_free_reg;
@@ -448,14 +148,11 @@ exit_free_reg:
 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);
+exit_disable_device:
+	pci_disable_device(pci_dev);
 
 	return retval;
 }
@@ -476,7 +173,6 @@ void rt2x00pci_remove(struct pci_dev *pci_dev)
 	/*
 	 * Free the PCI device data.
 	 */
-	pci_set_drvdata(pci_dev, NULL);
 	pci_disable_device(pci_dev);
 	pci_release_regions(pci_dev);
 }
@@ -493,8 +189,6 @@ int rt2x00pci_suspend(struct pci_dev *pci_dev, pm_message_t 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));
@@ -505,29 +199,15 @@ 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");
+	    pci_enable_device(pci_dev)) {
+		rt2x00_err(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;
+	pci_restore_state(pci_dev);
+	return rt2x00lib_resume(rt2x00dev);
 }
 EXPORT_SYMBOL_GPL(rt2x00pci_resume);
 #endif /* CONFIG_PM */