linux/drivers/staging/vt6656/card.c

// SPDX-License-Identifier: GPL-2.0+
/*
 * Copyright (c) 1996, 2003 VIA Networking Technologies, Inc.
 * All rights reserved.
 *
 * Purpose: Provide functions to setup NIC operation mode
 * Functions:
 *      vnt_set_rspinf - Set RSPINF
 *      vnt_update_ifs - Update slotTime,SIFS,DIFS, and EIFS
 *      vnt_update_top_rates - Update BasicTopRate
 *      vnt_add_basic_rate - Add to BasicRateSet
 *      vnt_ofdm_min_rate - Check if any OFDM rate is in BasicRateSet
 *      vnt_get_tsf_offset - Calculate TSFOffset
 *      vnt_get_next_tbtt - Calculate Next Beacon TSF counter
 *      vnt_reset_next_tbtt - Set NIC Beacon time
 *      vnt_update_next_tbtt - Sync. NIC Beacon time
 *      vnt_radio_power_off - Turn Off NIC Radio Power
 *      vnt_radio_power_on - Turn On NIC Radio Power
 *
 * Revision History:
 *      06-10-2003 Bryan YC Fan:  Re-write codes to support VT3253 spec.
 *      08-26-2003 Kyle Hsu:      Modify the definition type of dwIoBase.
 *      09-01-2003 Bryan YC Fan:  Add vnt_update_ifs().
 *
 */

#include <linux/bitops.h>
#include <linux/errno.h>
#include "device.h"
#include "card.h"
#include "baseband.h"
#include "mac.h"
#include "desc.h"
#include "rf.h"
#include "power.h"
#include "key.h"
#include "usbpipe.h"

/* const u16 cw_rxbcntsf_off[MAX_RATE] =
 *   {17, 34, 96, 192, 34, 23, 17, 11, 8, 5, 4, 3};
 */

static const u16 cw_rxbcntsf_off[MAX_RATE] = …;

int vnt_set_channel(struct vnt_private *priv, u32 connection_channel)
{ … }

static const u8 vnt_rspinf_b_short_table[] = …;

static const u8 vnt_rspinf_b_long_table[] = …;

static const u8 vnt_rspinf_a_table[] = …;

static const u8 vnt_rspinf_gb_table[] = …;

int vnt_set_rspinf(struct vnt_private *priv, u8 bb_type)
{ … }

int vnt_update_ifs(struct vnt_private *priv)
{ … }

void vnt_update_top_rates(struct vnt_private *priv)
{ … }

bool vnt_ofdm_min_rate(struct vnt_private *priv)
{ … }

u8 vnt_get_pkt_type(struct vnt_private *priv)
{ … }

/*
 * Description: Calculate TSF offset of two TSF input
 *              Get TSF Offset from RxBCN's TSF and local TSF
 *
 * Parameters:
 *  In:
 *      rx_rate	- rx rate.
 *      tsf1	- Rx BCN's TSF
 *      tsf2	- Local TSF
 *  Out:
 *      none
 *
 * Return Value: TSF Offset value
 *
 */
u64 vnt_get_tsf_offset(u8 rx_rate, u64 tsf1, u64 tsf2)
{ … }

int vnt_adjust_tsf(struct vnt_private *priv, u8 rx_rate,
		   u64 time_stamp, u64 local_tsf)
{ … }

/*
 * Description: Clear NIC TSF counter
 *              Clear local TSF counter
 *
 * Parameters:
 *  In:
 *      priv	- The adapter to be read
 *
 * Return Value: true if success; otherwise false
 *
 */
bool vnt_clear_current_tsf(struct vnt_private *priv)
{ … }

/*
 * Description: Read NIC TSF counter
 *              Get NEXTTBTT from adjusted TSF and Beacon Interval
 *
 * Parameters:
 *  In:
 *      tsf		- Current TSF counter
 *      beacon_interval - Beacon Interval
 *  Out:
 *      tsf		- Current TSF counter
 *
 * Return Value: TSF value of next Beacon
 *
 */
u64 vnt_get_next_tbtt(u64 tsf, u16 beacon_interval)
{ … }

int vnt_reset_next_tbtt(struct vnt_private *priv, u16 beacon_interval)
{ … }

int vnt_update_next_tbtt(struct vnt_private *priv, u64 tsf,
			 u16 beacon_interval)
{ … }

/*
 * Description: Turn off Radio power
 *
 * Parameters:
 *  In:
 *      priv         - The adapter to be turned off
 *  Out:
 *      none
 *
 * Return Value: true if success; otherwise false
 *
 */
int vnt_radio_power_off(struct vnt_private *priv)
{ … }

/*
 * Description: Turn on Radio power
 *
 * Parameters:
 *  In:
 *      priv         - The adapter to be turned on
 *  Out:
 *      none
 *
 * Return Value: true if success; otherwise false
 *
 */
int vnt_radio_power_on(struct vnt_private *priv)
{ … }

int vnt_set_bss_mode(struct vnt_private *priv)
{ … }