linux/drivers/net/wireless/broadcom/b43legacy/xmit.c

// SPDX-License-Identifier: GPL-2.0-or-later
/*

  Broadcom B43legacy wireless driver

  Transmission (TX/RX) related functions.

  Copyright (C) 2005 Martin Langer <[email protected]>
  Copyright (C) 2005 Stefano Brivio <[email protected]>
  Copyright (C) 2005, 2006 Michael Buesch <[email protected]>
  Copyright (C) 2005 Danny van Dyk <[email protected]>
  Copyright (C) 2005 Andreas Jaggi <[email protected]>
  Copyright (C) 2007 Larry Finger <[email protected]>


*/

#include <net/dst.h>

#include "xmit.h"
#include "phy.h"
#include "dma.h"
#include "pio.h"


/* Extract the bitrate out of a CCK PLCP header. */
static u8 b43legacy_plcp_get_bitrate_idx_cck(struct b43legacy_plcp_hdr6 *plcp)
{ … }

/* Extract the bitrate out of an OFDM PLCP header. */
static u8 b43legacy_plcp_get_bitrate_idx_ofdm(struct b43legacy_plcp_hdr6 *plcp,
					      bool aphy)
{ … }

u8 b43legacy_plcp_get_ratecode_cck(const u8 bitrate)
{ … }

u8 b43legacy_plcp_get_ratecode_ofdm(const u8 bitrate)
{ … }

void b43legacy_generate_plcp_hdr(struct b43legacy_plcp_hdr4 *plcp,
				 const u16 octets, const u8 bitrate)
{ … }

static u8 b43legacy_calc_fallback_rate(u8 bitrate)
{ … }

static int generate_txhdr_fw3(struct b43legacy_wldev *dev,
			       struct b43legacy_txhdr_fw3 *txhdr,
			       const unsigned char *fragment_data,
			       unsigned int fragment_len,
			       struct ieee80211_tx_info *info,
			       u16 cookie)
{ … }

int b43legacy_generate_txhdr(struct b43legacy_wldev *dev,
			      u8 *txhdr,
			      const unsigned char *fragment_data,
			      unsigned int fragment_len,
			      struct ieee80211_tx_info *info,
			      u16 cookie)
{ … }

static s8 b43legacy_rssi_postprocess(struct b43legacy_wldev *dev,
				     u8 in_rssi, int ofdm,
				     int adjust_2053, int adjust_2050)
{ … }

void b43legacy_rx(struct b43legacy_wldev *dev,
		  struct sk_buff *skb,
		  const void *_rxhdr)
{ … }

void b43legacy_handle_txstatus(struct b43legacy_wldev *dev,
			     const struct b43legacy_txstatus *status)
{ … }

/* Handle TX status report as received through DMA/PIO queues */
void b43legacy_handle_hwtxstatus(struct b43legacy_wldev *dev,
				 const struct b43legacy_hwtxstatus *hw)
{ … }

/* Stop any TX operation on the device (suspend the hardware queues) */
void b43legacy_tx_suspend(struct b43legacy_wldev *dev)
{ … }

/* Resume any TX operation on the device (resume the hardware queues) */
void b43legacy_tx_resume(struct b43legacy_wldev *dev)
{ … }

/* Initialize the QoS parameters */
void b43legacy_qos_init(struct b43legacy_wldev *dev)
{ … }