zd_rf.c
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/* 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>
*
* This program is free software; you can redistribute it and/or modify
* it under the terms of the GNU General Public License as published by
* the Free Software Foundation; either version 2 of the License, or
* (at your option) any later version.
*
* This program is distributed in the hope that it will be useful,
* but WITHOUT ANY WARRANTY; without even the implied warranty of
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
* GNU General Public License for more details.
*
* You should have received a copy of the GNU General Public License
* along with this program; if not, see <http://www.gnu.org/licenses/>.
*/
#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;
r = zd_chip_lock_phy_regs(chip);
if (r)
return r;
t = rf->init_hw(rf);
r = zd_chip_unlock_phy_regs(chip);
if (t)
r = t;
return r;
}
int zd_rf_scnprint_id(struct zd_rf *rf, char *buffer, size_t size)
{
return scnprintf(buffer, size, "%s", zd_rf_name(rf->type));
}
int zd_rf_set_channel(struct zd_rf *rf, u8 channel)
{
int r;
ZD_ASSERT(mutex_is_locked(&zd_rf_to_chip(rf)->mutex));
if (channel < MIN_CHANNEL24)
return -EINVAL;
if (channel > MAX_CHANNEL24)
return -EINVAL;
dev_dbg_f(zd_chip_dev(zd_rf_to_chip(rf)), "channel: %d\n", channel);
r = rf->set_channel(rf, channel);
if (r >= 0)
rf->channel = channel;
return r;
}
int zd_switch_radio_on(struct zd_rf *rf)
{
int r, t;
struct zd_chip *chip = zd_rf_to_chip(rf);
ZD_ASSERT(mutex_is_locked(&chip->mutex));
r = zd_chip_lock_phy_regs(chip);
if (r)
return r;
t = rf->switch_radio_on(rf);
r = zd_chip_unlock_phy_regs(chip);
if (t)
r = t;
return r;
}
int zd_switch_radio_off(struct zd_rf *rf)
{
int r, t;
struct zd_chip *chip = zd_rf_to_chip(rf);
/* TODO: move phy regs handling to zd_chip */
ZD_ASSERT(mutex_is_locked(&chip->mutex));
r = zd_chip_lock_phy_regs(chip);
if (r)
return r;
t = rf->switch_radio_off(rf);
r = zd_chip_unlock_phy_regs(chip);
if (t)
r = t;
return r;
}
int zd_rf_patch_6m_band_edge(struct zd_rf *rf, u8 channel)
{
if (!rf->patch_6m_band_edge)
return 0;
return rf->patch_6m_band_edge(rf, channel);
}
int zd_rf_generic_patch_6m(struct zd_rf *rf, u8 channel)
{
return zd_chip_generic_patch_6m_band(zd_rf_to_chip(rf), channel);
}