/*
- 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
#define RT2X00PCI_H
#include <linux/io.h>
+#include <linux/pci.h>
/*
* This variable should be used with the
#define PCI_DEVICE_DATA(__ops) .driver_data = (kernel_ulong_t)(__ops)
/*
- * Register defines.
- * Some registers require multiple attempts before success,
- * in those cases REGISTER_BUSY_COUNT attempts should be
- * taken with a REGISTER_BUSY_DELAY interval.
- */
-#define REGISTER_BUSY_COUNT 5
-#define REGISTER_BUSY_DELAY 100
-
-/*
- * Descriptor availability flags.
- * All PCI device descriptors have these 2 flags
- * with the exact same definition.
- * By storing them here we can use them inside rt2x00pci
- * for some simple entry availability checking.
- */
-#define TXD_ENTRY_OWNER_NIC FIELD32(0x00000001)
-#define TXD_ENTRY_VALID FIELD32(0x00000002)
-#define RXD_ENTRY_OWNER_NIC FIELD32(0x00000001)
-
-/*
* Register access.
*/
static inline void rt2x00pci_register_read(struct rt2x00_dev *rt2x00dev,
- const unsigned long offset,
+ const unsigned int offset,
u32 *value)
{
- *value = readl(rt2x00dev->csr_addr + offset);
+ *value = readl(rt2x00dev->csr.base + offset);
}
-static inline void
-rt2x00pci_register_multiread(struct rt2x00_dev *rt2x00dev,
- const unsigned long offset,
- void *value, const u16 length)
+static inline void rt2x00pci_register_multiread(struct rt2x00_dev *rt2x00dev,
+ const unsigned int offset,
+ void *value, const u32 length)
{
- memcpy_fromio(value, rt2x00dev->csr_addr + offset, length);
+ memcpy_fromio(value, rt2x00dev->csr.base + offset, length);
}
static inline void rt2x00pci_register_write(struct rt2x00_dev *rt2x00dev,
- const unsigned long offset,
+ const unsigned int offset,
u32 value)
{
- writel(value, rt2x00dev->csr_addr + offset);
+ writel(value, rt2x00dev->csr.base + offset);
}
-static inline void
-rt2x00pci_register_multiwrite(struct rt2x00_dev *rt2x00dev,
- const unsigned long offset,
- void *value, const u16 length)
+static inline void rt2x00pci_register_multiwrite(struct rt2x00_dev *rt2x00dev,
+ const unsigned int offset,
+ const void *value,
+ const u32 length)
{
- memcpy_toio(rt2x00dev->csr_addr + offset, value, length);
+ memcpy_toio(rt2x00dev->csr.base + offset, value, length);
}
-/*
- * Beacon handlers.
- */
-int rt2x00pci_beacon_update(struct ieee80211_hw *hw, struct sk_buff *skb,
- struct ieee80211_tx_control *control);
-
-/*
- * TX data handlers.
+/**
+ * rt2x00pci_regbusy_read - Read from register with busy check
+ * @rt2x00dev: Device pointer, see &struct rt2x00_dev.
+ * @offset: Register offset
+ * @field: Field to check if register is busy
+ * @reg: Pointer to where register contents should be stored
+ *
+ * This function will read the given register, and checks if the
+ * register is busy. If it is, it will sleep for a couple of
+ * microseconds before reading the register again. If the register
+ * is not read after a certain timeout, this function will return
+ * FALSE.
*/
-int rt2x00pci_write_tx_data(struct rt2x00_dev *rt2x00dev,
- struct data_queue *queue, struct sk_buff *skb,
- struct ieee80211_tx_control *control);
+int rt2x00pci_regbusy_read(struct rt2x00_dev *rt2x00dev,
+ const unsigned int offset,
+ const struct rt2x00_field32 field,
+ u32 *reg);
/**
- * struct queue_entry_priv_pci_rx: Per RX entry PCI specific information
+ * rt2x00pci_write_tx_data - Initialize data for TX operation
+ * @entry: The entry where the frame is located
*
- * @desc: Pointer to device descriptor.
- * @data: Pointer to device's entry memory.
- * @dma: DMA pointer to &data.
+ * This function will initialize the DMA and skb descriptor
+ * to prepare the entry for the actual TX operation.
*/
-struct queue_entry_priv_pci_rx {
- __le32 *desc;
-
- void *data;
- dma_addr_t dma;
-};
+int rt2x00pci_write_tx_data(struct queue_entry *entry,
+ struct txentry_desc *txdesc);
/**
- * struct queue_entry_priv_pci_tx: Per TX entry PCI specific information
+ * struct queue_entry_priv_pci: Per entry PCI specific information
*
* @desc: Pointer to device descriptor
+ * @desc_dma: DMA pointer to &desc.
* @data: Pointer to device's entry memory.
- * @dma: DMA pointer to &data.
- * @control: mac80211 control structure used to transmit data.
+ * @data_dma: DMA pointer to &data.
*/
-struct queue_entry_priv_pci_tx {
+struct queue_entry_priv_pci {
__le32 *desc;
-
- void *data;
- dma_addr_t dma;
-
- struct ieee80211_tx_control control;
+ dma_addr_t desc_dma;
};
/**
*/
void rt2x00pci_rxdone(struct rt2x00_dev *rt2x00dev);
-/**
- * rt2x00pci_txdone - Handle TX done events
- * @rt2x00dev: Device pointer, see &struct rt2x00_dev.
- * @entry: Entry which has completed the transmission of a frame.
- * @desc: TX done descriptor
- */
-void rt2x00pci_txdone(struct rt2x00_dev *rt2x00dev, struct queue_entry *entry,
- struct txdone_entry_desc *desc);
-
/*
* Device initialization handlers.
*/
git://ftp.safe.ca / safe / jmp / linux-2.6 / blobdiff