-#ifndef B43_PIO_H_
-#define B43_PIO_H_
-
-#include "b43.h"
-
-#include <linux/interrupt.h>
-#include <linux/io.h>
-#include <linux/list.h>
-#include <linux/skbuff.h>
-
-
-/*** Registers for PIO queues up to revision 7. ***/
-/* TX queue. */
-#define B43_PIO_TXCTL 0x00
-#define B43_PIO_TXCTL_WRITELO 0x0001
-#define B43_PIO_TXCTL_WRITEHI 0x0002
-#define B43_PIO_TXCTL_EOF 0x0004
-#define B43_PIO_TXCTL_FREADY 0x0008
-#define B43_PIO_TXCTL_FLUSHREQ 0x0020
-#define B43_PIO_TXCTL_FLUSHPEND 0x0040
-#define B43_PIO_TXCTL_SUSPREQ 0x0080
-#define B43_PIO_TXCTL_QSUSP 0x0100
-#define B43_PIO_TXCTL_COMMCNT 0xFC00
-#define B43_PIO_TXCTL_COMMCNT_SHIFT 10
-#define B43_PIO_TXDATA 0x02
-#define B43_PIO_TXQBUFSIZE 0x04
-/* RX queue. */
-#define B43_PIO_RXCTL 0x00
-#define B43_PIO_RXCTL_FRAMERDY 0x0001
-#define B43_PIO_RXCTL_DATARDY 0x0002
-#define B43_PIO_RXDATA 0x02
-
-/*** Registers for PIO queues revision 8 and later. ***/
-/* TX queue */
-#define B43_PIO8_TXCTL 0x00
-#define B43_PIO8_TXCTL_0_7 0x00000001
-#define B43_PIO8_TXCTL_8_15 0x00000002
-#define B43_PIO8_TXCTL_16_23 0x00000004
-#define B43_PIO8_TXCTL_24_31 0x00000008
-#define B43_PIO8_TXCTL_EOF 0x00000010
-#define B43_PIO8_TXCTL_FREADY 0x00000080
-#define B43_PIO8_TXCTL_SUSPREQ 0x00000100
-#define B43_PIO8_TXCTL_QSUSP 0x00000200
-#define B43_PIO8_TXCTL_FLUSHREQ 0x00000400
-#define B43_PIO8_TXCTL_FLUSHPEND 0x00000800
-#define B43_PIO8_TXDATA 0x04
-/* RX queue */
-#define B43_PIO8_RXCTL 0x00
-#define B43_PIO8_RXCTL_FRAMERDY 0x00000001
-#define B43_PIO8_RXCTL_DATARDY 0x00000002
-#define B43_PIO8_RXDATA 0x04
-
-
-/* The maximum number of TX-packets the HW can handle. */
-#define B43_PIO_MAX_NR_TXPACKETS 32
-
-
-#ifdef CONFIG_B43_PIO
-
-struct b43_pio_txpacket {
- /* Pointer to the TX queue we belong to. */
- struct b43_pio_txqueue *queue;
- /* The TX data packet. */
- struct sk_buff *skb;
- /* Index in the (struct b43_pio_txqueue)->packets array. */
- u8 index;
-
- struct list_head list;
-};
-
-struct b43_pio_txqueue {
- struct b43_wldev *dev;
- spinlock_t lock;
- u16 mmio_base;
-
- /* The device queue buffer size in bytes. */
- u16 buffer_size;
- /* The number of used bytes in the device queue buffer. */
- u16 buffer_used;
- /* The number of packets that can still get queued.
- * This is decremented on queueing a packet and incremented
- * after receiving the transmit status. */
- u16 free_packet_slots;
-
- /* True, if the mac80211 queue was stopped due to overflow at TX. */
- bool stopped;
- /* Our b43 queue index number */
- u8 index;
- /* The mac80211 QoS queue priority. */
- u8 queue_prio;
-
- /* Buffer for TX packet meta data. */
- struct b43_pio_txpacket packets[B43_PIO_MAX_NR_TXPACKETS];
- struct list_head packets_list;
-
- /* Total number of transmitted packets. */
- unsigned int nr_tx_packets;
-
- /* Shortcut to the 802.11 core revision. This is to
- * avoid horrible pointer dereferencing in the fastpaths. */
- u8 rev;
-};
-
-struct b43_pio_rxqueue {
- struct b43_wldev *dev;
- spinlock_t lock;
- u16 mmio_base;
-
- /* Work to reduce latency issues on RX. */
- struct work_struct rx_work;
-
- /* Shortcut to the 802.11 core revision. This is to
- * avoid horrible pointer dereferencing in the fastpaths. */
- u8 rev;
-};
-
-
-static inline u16 b43_piotx_read16(struct b43_pio_txqueue *q, u16 offset)
-{
- return b43_read16(q->dev, q->mmio_base + offset);
-}
-
-static inline u32 b43_piotx_read32(struct b43_pio_txqueue *q, u16 offset)
-{
- return b43_read32(q->dev, q->mmio_base + offset);
-}
-
-static inline void b43_piotx_write16(struct b43_pio_txqueue *q,
- u16 offset, u16 value)
-{
- b43_write16(q->dev, q->mmio_base + offset, value);
-}
-
-static inline void b43_piotx_write32(struct b43_pio_txqueue *q,
- u16 offset, u32 value)
-{
- b43_write32(q->dev, q->mmio_base + offset, value);
-}
-
-
-static inline u16 b43_piorx_read16(struct b43_pio_rxqueue *q, u16 offset)
-{
- return b43_read16(q->dev, q->mmio_base + offset);
-}
-
-static inline u32 b43_piorx_read32(struct b43_pio_rxqueue *q, u16 offset)
-{
- return b43_read32(q->dev, q->mmio_base + offset);
-}
-
-static inline void b43_piorx_write16(struct b43_pio_rxqueue *q,
- u16 offset, u16 value)
-{
- b43_write16(q->dev, q->mmio_base + offset, value);
-}
-
-static inline void b43_piorx_write32(struct b43_pio_rxqueue *q,
- u16 offset, u32 value)
-{
- b43_write32(q->dev, q->mmio_base + offset, value);
-}
-
-
-int b43_pio_init(struct b43_wldev *dev);
-void b43_pio_stop(struct b43_wldev *dev);
-void b43_pio_free(struct b43_wldev *dev);
-
-int b43_pio_tx(struct b43_wldev *dev, struct sk_buff *skb);
-void b43_pio_handle_txstatus(struct b43_wldev *dev,
- const struct b43_txstatus *status);
-void b43_pio_get_tx_stats(struct b43_wldev *dev,
- struct ieee80211_tx_queue_stats *stats);
-void b43_pio_rx(struct b43_pio_rxqueue *q);
-
-void b43_pio_tx_suspend(struct b43_wldev *dev);
-void b43_pio_tx_resume(struct b43_wldev *dev);
-
-
-#else /* CONFIG_B43_PIO */
-
-
-static inline int b43_pio_init(struct b43_wldev *dev)
-{
- return 0;
-}
-static inline void b43_pio_free(struct b43_wldev *dev)
-{
-}
-static inline void b43_pio_stop(struct b43_wldev *dev)
-{
-}
-static inline int b43_pio_tx(struct b43_wldev *dev,
- struct sk_buff *skb)
-{
- return 0;
-}
-static inline void b43_pio_handle_txstatus(struct b43_wldev *dev,
- const struct b43_txstatus *status)
-{
-}
-static inline void b43_pio_get_tx_stats(struct b43_wldev *dev,
- struct ieee80211_tx_queue_stats *stats)
-{
-}
-static inline void b43_pio_rx(struct b43_pio_rxqueue *q)
-{
-}
-static inline void b43_pio_tx_suspend(struct b43_wldev *dev)
-{
-}
-static inline void b43_pio_tx_resume(struct b43_wldev *dev)
-{
-}
-
-#endif /* CONFIG_B43_PIO */
-#endif /* B43_PIO_H_ */
projects / openwrt / staging / mkresin.git / blobdiff