forked from Minki/linux
89 lines
2.4 KiB
C
89 lines
2.4 KiB
C
|
#ifndef BCM43xx_PIO_H_
|
||
|
|
#define BCM43xx_PIO_H_
|
||
|
|
|
||
|
|
#include "bcm43xx.h"
|
||
|
|
|
||
|
|
#include <linux/list.h>
|
||
|
|
#include <linux/spinlock.h>
|
||
|
|
#include <linux/workqueue.h>
|
||
|
|
#include <linux/skbuff.h>
|
||
|
|
|
||
|
|
|
||
|
|
#define BCM43xx_PIO_TXCTL 0x00
|
||
|
|
#define BCM43xx_PIO_TXDATA 0x02
|
||
|
|
#define BCM43xx_PIO_TXQBUFSIZE 0x04
|
||
|
|
#define BCM43xx_PIO_RXCTL 0x08
|
||
|
|
#define BCM43xx_PIO_RXDATA 0x0A
|
||
|
|
|
||
|
|
#define BCM43xx_PIO_TXCTL_WRITEHI (1 << 0)
|
||
|
|
#define BCM43xx_PIO_TXCTL_WRITELO (1 << 1)
|
||
|
|
#define BCM43xx_PIO_TXCTL_COMPLETE (1 << 2)
|
||
|
|
#define BCM43xx_PIO_TXCTL_INIT (1 << 3)
|
||
|
|
#define BCM43xx_PIO_TXCTL_SUSPEND (1 << 7)
|
||
|
|
|
||
|
|
#define BCM43xx_PIO_RXCTL_DATAAVAILABLE (1 << 0)
|
||
|
|
#define BCM43xx_PIO_RXCTL_READY (1 << 1)
|
||
|
|
|
||
|
|
/* PIO constants */
|
||
|
|
#define BCM43xx_PIO_MAXTXDEVQPACKETS 31
|
||
|
|
#define BCM43xx_PIO_TXQADJUST 80
|
||
|
|
|
||
|
|
/* PIO tuning knobs */
|
||
|
|
#define BCM43xx_PIO_MAXTXPACKETS 256
|
||
|
|
|
||
|
|
|
||
|
|
struct bcm43xx_pioqueue;
|
||
|
|
struct bcm43xx_xmitstatus;
|
||
|
|
|
||
|
|
struct bcm43xx_pio_txpacket {
|
||
|
|
struct bcm43xx_pioqueue *queue;
|
||
|
|
struct ieee80211_txb *txb;
|
||
|
|
struct list_head list;
|
||
|
|
|
||
|
|
u8 xmitted_frags;
|
||
|
|
u16 xmitted_octets;
|
||
|
|
};
|
||
|
|
|
||
|
|
#define pio_txpacket_getindex(packet) ((int)((packet) - (packet)->queue->__tx_packets_cache))
|
||
|
|
|
||
|
|
struct bcm43xx_pioqueue {
|
||
|
|
struct bcm43xx_private *bcm;
|
||
|
|
u16 mmio_base;
|
||
|
|
|
||
|
|
u8 tx_suspended:1;
|
||
|
|
|
||
|
|
/* 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;
|
||
|
|
/* 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;
|
||
|
|
/* Locking of the TX queues and the accounting. */
|
||
|
|
spinlock_t txlock;
|
||
|
|
struct work_struct txwork;
|
||
|
|
struct bcm43xx_pio_txpacket __tx_packets_cache[BCM43xx_PIO_MAXTXPACKETS];
|
||
|
|
};
|
||
|
|
|
||
|
|
int bcm43xx_pio_init(struct bcm43xx_private *bcm);
|
||
|
|
void bcm43xx_pio_free(struct bcm43xx_private *bcm);
|
||
|
|
|
||
|
|
int FASTCALL(bcm43xx_pio_transfer_txb(struct bcm43xx_private *bcm,
|
||
|
|
struct ieee80211_txb *txb));
|
||
|
|
void FASTCALL(bcm43xx_pio_handle_xmitstatus(struct bcm43xx_private *bcm,
|
||
|
|
struct bcm43xx_xmitstatus *status));
|
||
|
|
|
||
|
|
void FASTCALL(bcm43xx_pio_rx(struct bcm43xx_pioqueue *queue));
|
||
|
|
#endif /* BCM43xx_PIO_H_ */
|