diff options
Diffstat (limited to 'drivers/net/wireless/b43/pio.h')
| -rw-r--r-- | drivers/net/wireless/b43/pio.h | 153 |
1 files changed, 0 insertions, 153 deletions
diff --git a/drivers/net/wireless/b43/pio.h b/drivers/net/wireless/b43/pio.h deleted file mode 100644 index 3488f2447bbf..000000000000 --- a/drivers/net/wireless/b43/pio.h +++ /dev/null @@ -1,153 +0,0 @@ -#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> - -#define B43_PIO_TXCTL 0x00 -#define B43_PIO_TXDATA 0x02 -#define B43_PIO_TXQBUFSIZE 0x04 -#define B43_PIO_RXCTL 0x08 -#define B43_PIO_RXDATA 0x0A - -#define B43_PIO_TXCTL_WRITELO (1 << 0) -#define B43_PIO_TXCTL_WRITEHI (1 << 1) -#define B43_PIO_TXCTL_COMPLETE (1 << 2) -#define B43_PIO_TXCTL_INIT (1 << 3) -#define B43_PIO_TXCTL_SUSPEND (1 << 7) - -#define B43_PIO_RXCTL_DATAAVAILABLE (1 << 0) -#define B43_PIO_RXCTL_READY (1 << 1) - -/* PIO constants */ -#define B43_PIO_MAXTXDEVQPACKETS 31 -#define B43_PIO_TXQADJUST 80 - -/* PIO tuning knobs */ -#define B43_PIO_MAXTXPACKETS 256 - -#ifdef CONFIG_B43_PIO - -struct b43_pioqueue; -struct b43_xmitstatus; - -struct b43_pio_txpacket { - struct b43_pioqueue *queue; - struct sk_buff *skb; - struct ieee80211_tx_status txstat; - struct list_head list; - u16 index; /* Index in the tx_packets_cache */ -}; - -struct b43_pioqueue { - struct b43_wldev *dev; - u16 mmio_base; - - bool tx_suspended; - bool tx_frozen; - bool need_workarounds; /* Workarounds needed for core.rev < 3 */ - - /* Adjusted size of the device internal TX buffer. */ - u16 tx_devq_size; - /* Used octets of the device internal TX buffer. */ - u16 tx_devq_used; - /* Used packet slots in the device internal TX buffer. */ - u8 tx_devq_packets; - /* Packets from the txfree list can - * be taken on incoming TX requests. - */ - struct list_head txfree; - unsigned int nr_txfree; - /* Packets on the txqueue are queued, - * but not completely written to the chip, yet. - */ - struct list_head txqueue; - /* Packets on the txrunning queue are completely - * posted to the device. We are waiting for the txstatus. - */ - struct list_head txrunning; - /* Total number or packets sent. - * (This counter can obviously wrap). - */ - unsigned int nr_tx_packets; - struct tasklet_struct txtask; - struct b43_pio_txpacket tx_packets_cache[B43_PIO_MAXTXPACKETS]; -}; - -static inline u16 b43_pio_read(struct b43_pioqueue *queue, u16 offset) -{ - return b43_read16(queue->dev, queue->mmio_base + offset); -} - -static inline - void b43_pio_write(struct b43_pioqueue *queue, u16 offset, u16 value) -{ - b43_write16(queue->dev, queue->mmio_base + offset, value); - mmiowb(); -} - -int b43_pio_init(struct b43_wldev *dev); -void b43_pio_free(struct b43_wldev *dev); - -int b43_pio_tx(struct b43_wldev *dev, - struct sk_buff *skb, struct ieee80211_tx_control *ctl); -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_pioqueue *queue); - -/* Suspend TX queue in hardware. */ -void b43_pio_tx_suspend(struct b43_pioqueue *queue); -void b43_pio_tx_resume(struct b43_pioqueue *queue); -/* Suspend (freeze) the TX tasklet (software level). */ -void b43_pio_freeze_txqueues(struct b43_wldev *dev); -void b43_pio_thaw_txqueues(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 - int b43_pio_tx(struct b43_wldev *dev, - struct sk_buff *skb, struct ieee80211_tx_control *ctl) -{ - 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_pioqueue *queue) -{ -} -static inline void b43_pio_tx_suspend(struct b43_pioqueue *queue) -{ -} -static inline void b43_pio_tx_resume(struct b43_pioqueue *queue) -{ -} -static inline void b43_pio_freeze_txqueues(struct b43_wldev *dev) -{ -} -static inline void b43_pio_thaw_txqueues(struct b43_wldev *dev) -{ -} - -#endif /* CONFIG_B43_PIO */ -#endif /* B43_PIO_H_ */ |