drivers/net/wireless/ti/wl18xx/cmd.c

Source file repositories/reference/linux-study-clean/drivers/net/wireless/ti/wl18xx/cmd.c

File Facts

System
Linux kernel
Corpus path
drivers/net/wireless/ti/wl18xx/cmd.c
Extension
.c
Size
5227 bytes
Lines
243
Domain
Driver Families
Bucket
drivers/net
Inferred role
Driver Families: implementation source
Status
source implementation candidate

Why This File Exists

Repeatable hardware-adapter layer. Deep compatibility for every driver is out of scope; this atlas records patterns, probe lifecycles, bus glue, IRQ/DMA usage, and links back to core abstractions.

Dependency Surface

Detected Declarations

Annotated Snippet

// SPDX-License-Identifier: GPL-2.0-only
/*
 * This file is part of wl18xx
 *
 * Copyright (C) 2011 Texas Instruments Inc.
 */

#include "../wlcore/cmd.h"
#include "../wlcore/debug.h"
#include "../wlcore/hw_ops.h"

#include "cmd.h"

int wl18xx_cmd_channel_switch(struct wl1271 *wl,
			      struct wl12xx_vif *wlvif,
			      struct ieee80211_channel_switch *ch_switch)
{
	struct wl18xx_cmd_channel_switch *cmd;
	u32 supported_rates;
	int ret;

	wl1271_debug(DEBUG_ACX, "cmd channel switch (count=%d)",
		     ch_switch->count);

	cmd = kzalloc_obj(*cmd);
	if (!cmd) {
		ret = -ENOMEM;
		goto out;
	}

	cmd->role_id = wlvif->role_id;
	cmd->channel = ch_switch->chandef.chan->hw_value;
	cmd->switch_time = ch_switch->count;
	cmd->stop_tx = ch_switch->block_tx;

	switch (ch_switch->chandef.chan->band) {
	case NL80211_BAND_2GHZ:
		cmd->band = WLCORE_BAND_2_4GHZ;
		break;
	case NL80211_BAND_5GHZ:
		cmd->band = WLCORE_BAND_5GHZ;
		break;
	default:
		wl1271_error("invalid channel switch band: %d",
			     ch_switch->chandef.chan->band);
		ret = -EINVAL;
		goto out_free;
	}

	supported_rates = CONF_TX_ENABLED_RATES | CONF_TX_MCS_RATES;
	if (wlvif->bss_type == BSS_TYPE_STA_BSS)
		supported_rates |= wlcore_hw_sta_get_ap_rate_mask(wl, wlvif);
	else
		supported_rates |=
			wlcore_hw_ap_get_mimo_wide_rate_mask(wl, wlvif);
	if (wlvif->p2p)
		supported_rates &= ~CONF_TX_CCK_RATES;
	cmd->local_supported_rates = cpu_to_le32(supported_rates);
	cmd->channel_type = wlvif->channel_type;

	ret = wl1271_cmd_send(wl, CMD_CHANNEL_SWITCH, cmd, sizeof(*cmd), 0);
	if (ret < 0) {
		wl1271_error("failed to send channel switch command");
		goto out_free;
	}

out_free:
	kfree(cmd);
out:
	return ret;
}

int wl18xx_cmd_smart_config_start(struct wl1271 *wl, u32 group_bitmap)
{
	struct wl18xx_cmd_smart_config_start *cmd;
	int ret = 0;

	wl1271_debug(DEBUG_CMD, "cmd smart config start group_bitmap=0x%x",
		     group_bitmap);

	cmd = kzalloc_obj(*cmd);
	if (!cmd) {
		ret = -ENOMEM;
		goto out;
	}

	cmd->group_id_bitmask = cpu_to_le32(group_bitmap);

	ret = wl1271_cmd_send(wl, CMD_SMART_CONFIG_START, cmd, sizeof(*cmd), 0);
	if (ret < 0) {

Annotation

Implementation Notes