drivers/net/wireless/zydas/zd1211rw/zd_rf_al2230.c

Source file repositories/reference/linux-study-clean/drivers/net/wireless/zydas/zd1211rw/zd_rf_al2230.c

File Facts

System
Linux kernel
Corpus path
drivers/net/wireless/zydas/zd1211rw/zd_rf_al2230.c
Extension
.c
Size
12177 bytes
Lines
432
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/kernel.h>

#include "zd_rf.h"
#include "zd_usb.h"
#include "zd_chip.h"

#define IS_AL2230S(chip) ((chip)->al2230s_bit || (chip)->rf.type == AL2230S_RF)

static const u32 zd1211_al2230_table[][3] = {
	RF_CHANNEL( 1) = { 0x03f790, 0x033331, 0x00000d, },
	RF_CHANNEL( 2) = { 0x03f790, 0x0b3331, 0x00000d, },
	RF_CHANNEL( 3) = { 0x03e790, 0x033331, 0x00000d, },
	RF_CHANNEL( 4) = { 0x03e790, 0x0b3331, 0x00000d, },
	RF_CHANNEL( 5) = { 0x03f7a0, 0x033331, 0x00000d, },
	RF_CHANNEL( 6) = { 0x03f7a0, 0x0b3331, 0x00000d, },
	RF_CHANNEL( 7) = { 0x03e7a0, 0x033331, 0x00000d, },
	RF_CHANNEL( 8) = { 0x03e7a0, 0x0b3331, 0x00000d, },
	RF_CHANNEL( 9) = { 0x03f7b0, 0x033331, 0x00000d, },
	RF_CHANNEL(10) = { 0x03f7b0, 0x0b3331, 0x00000d, },
	RF_CHANNEL(11) = { 0x03e7b0, 0x033331, 0x00000d, },
	RF_CHANNEL(12) = { 0x03e7b0, 0x0b3331, 0x00000d, },
	RF_CHANNEL(13) = { 0x03f7c0, 0x033331, 0x00000d, },
	RF_CHANNEL(14) = { 0x03e7c0, 0x066661, 0x00000d, },
};

static const u32 zd1211b_al2230_table[][3] = {
	RF_CHANNEL( 1) = { 0x09efc0, 0x8cccc0, 0xb00000, },
	RF_CHANNEL( 2) = { 0x09efc0, 0x8cccd0, 0xb00000, },
	RF_CHANNEL( 3) = { 0x09e7c0, 0x8cccc0, 0xb00000, },
	RF_CHANNEL( 4) = { 0x09e7c0, 0x8cccd0, 0xb00000, },
	RF_CHANNEL( 5) = { 0x05efc0, 0x8cccc0, 0xb00000, },
	RF_CHANNEL( 6) = { 0x05efc0, 0x8cccd0, 0xb00000, },
	RF_CHANNEL( 7) = { 0x05e7c0, 0x8cccc0, 0xb00000, },
	RF_CHANNEL( 8) = { 0x05e7c0, 0x8cccd0, 0xb00000, },
	RF_CHANNEL( 9) = { 0x0defc0, 0x8cccc0, 0xb00000, },
	RF_CHANNEL(10) = { 0x0defc0, 0x8cccd0, 0xb00000, },
	RF_CHANNEL(11) = { 0x0de7c0, 0x8cccc0, 0xb00000, },
	RF_CHANNEL(12) = { 0x0de7c0, 0x8cccd0, 0xb00000, },
	RF_CHANNEL(13) = { 0x03efc0, 0x8cccc0, 0xb00000, },
	RF_CHANNEL(14) = { 0x03e7c0, 0x866660, 0xb00000, },
};

static const struct zd_ioreq16 zd1211b_ioreqs_shared_1[] = {
	{ ZD_CR240, 0x57 }, { ZD_CR9,   0xe0 },
};

static const struct zd_ioreq16 ioreqs_init_al2230s[] = {
	{ ZD_CR47,   0x1e }, /* MARK_002 */
	{ ZD_CR106,  0x22 },
	{ ZD_CR107,  0x2a }, /* MARK_002 */
	{ ZD_CR109,  0x13 }, /* MARK_002 */
	{ ZD_CR118,  0xf8 }, /* MARK_002 */
	{ ZD_CR119,  0x12 }, { ZD_CR122,  0xe0 },
	{ ZD_CR128,  0x10 }, /* MARK_001 from 0xe->0x10 */
	{ ZD_CR129,  0x0e }, /* MARK_001 from 0xd->0x0e */
	{ ZD_CR130,  0x10 }, /* MARK_001 from 0xb->0x0d */
};

static int zd1211b_al2230_finalize_rf(struct zd_chip *chip)
{
	int r;
	static const struct zd_ioreq16 ioreqs[] = {
		{ ZD_CR80,  0x30 }, { ZD_CR81,  0x30 }, { ZD_CR79,  0x58 },
		{ ZD_CR12,  0xf0 }, { ZD_CR77,  0x1b }, { ZD_CR78,  0x58 },
		{ ZD_CR203, 0x06 },
		{ },

		{ ZD_CR240, 0x80 },
	};

	r = zd_iowrite16a_locked(chip, ioreqs, ARRAY_SIZE(ioreqs));
	if (r)
		return r;

	/* related to antenna selection? */
	if (chip->new_phy_layout) {
		r = zd_iowrite16_locked(chip, 0xe1, ZD_CR9);
		if (r)
			return r;
	}

	return zd_iowrite16_locked(chip, 0x06, ZD_CR203);
}

Annotation

Implementation Notes