drivers/net/wireless/zydas/zd1211rw/zd_rf.c

Source file repositories/reference/linux-study-clean/drivers/net/wireless/zydas/zd1211rw/zd_rf.c

File Facts

System
Linux kernel
Corpus path
drivers/net/wireless/zydas/zd1211rw/zd_rf.c
Extension
.c
Size
3381 bytes
Lines
170
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-or-later
/* ZD1211 USB-WLAN driver for Linux
 *
 * Copyright (C) 2005-2007 Ulrich Kunitz <kune@deine-taler.de>
 * Copyright (C) 2006-2007 Daniel Drake <dsd@gentoo.org>
 */

#include <linux/errno.h>
#include <linux/string.h>

#include "zd_def.h"
#include "zd_rf.h"
#include "zd_mac.h"
#include "zd_chip.h"

static const char * const rfs[] = {
	[0]		= "unknown RF0",
	[1]		= "unknown RF1",
	[UW2451_RF]	= "UW2451_RF",
	[UCHIP_RF]	= "UCHIP_RF",
	[AL2230_RF]	= "AL2230_RF",
	[AL7230B_RF]	= "AL7230B_RF",
	[THETA_RF]	= "THETA_RF",
	[AL2210_RF]	= "AL2210_RF",
	[MAXIM_NEW_RF]	= "MAXIM_NEW_RF",
	[UW2453_RF]	= "UW2453_RF",
	[AL2230S_RF]	= "AL2230S_RF",
	[RALINK_RF]	= "RALINK_RF",
	[INTERSIL_RF]	= "INTERSIL_RF",
	[RF2959_RF]	= "RF2959_RF",
	[MAXIM_NEW2_RF]	= "MAXIM_NEW2_RF",
	[PHILIPS_RF]	= "PHILIPS_RF",
};

const char *zd_rf_name(u8 type)
{
	if (type & 0xf0)
		type = 0;
	return rfs[type];
}

void zd_rf_init(struct zd_rf *rf)
{
	memset(rf, 0, sizeof(*rf));

	/* default to update channel integration, as almost all RF's do want
	 * this */
	rf->update_channel_int = 1;
}

void zd_rf_clear(struct zd_rf *rf)
{
	if (rf->clear)
		rf->clear(rf);
	ZD_MEMCLEAR(rf, sizeof(*rf));
}

int zd_rf_init_hw(struct zd_rf *rf, u8 type)
{
	int r = 0;
	int t;
	struct zd_chip *chip = zd_rf_to_chip(rf);

	ZD_ASSERT(mutex_is_locked(&chip->mutex));
	switch (type) {
	case RF2959_RF:
		r = zd_rf_init_rf2959(rf);
		break;
	case AL2230_RF:
	case AL2230S_RF:
		r = zd_rf_init_al2230(rf);
		break;
	case AL7230B_RF:
		r = zd_rf_init_al7230b(rf);
		break;
	case MAXIM_NEW_RF:
	case UW2453_RF:
		r = zd_rf_init_uw2453(rf);
		break;
	default:
		dev_err(zd_chip_dev(chip),
			"RF %s %#x is not supported\n", zd_rf_name(type), type);
		rf->type = 0;
		return -ENODEV;
	}

	if (r)
		return r;

	rf->type = type;

Annotation

Implementation Notes