1/* ZD1211 USB-WLAN driver for Linux 2 * 3 * Copyright (C) 2005-2007 Ulrich Kunitz <kune@deine-taler.de> 4 * Copyright (C) 2006-2007 Daniel Drake <dsd@gentoo.org> 5 * 6 * This program is free software; you can redistribute it and/or modify 7 * it under the terms of the GNU General Public License as published by 8 * the Free Software Foundation; either version 2 of the License, or 9 * (at your option) any later version. 10 * 11 * This program is distributed in the hope that it will be useful, 12 * but WITHOUT ANY WARRANTY; without even the implied warranty of 13 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the 14 * GNU General Public License for more details. 15 * 16 * You should have received a copy of the GNU General Public License 17 * along with this program; if not, write to the Free Software 18 * Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA 19 */ 20 21#include <linux/errno.h> 22#include <linux/string.h> 23 24#include "zd_def.h" 25#include "zd_rf.h" 26#include "zd_mac.h" 27#include "zd_chip.h" 28 29static const char * const rfs[] = { 30 [0] = "unknown RF0", 31 [1] = "unknown RF1", 32 [UW2451_RF] = "UW2451_RF", 33 [UCHIP_RF] = "UCHIP_RF", 34 [AL2230_RF] = "AL2230_RF", 35 [AL7230B_RF] = "AL7230B_RF", 36 [THETA_RF] = "THETA_RF", 37 [AL2210_RF] = "AL2210_RF", 38 [MAXIM_NEW_RF] = "MAXIM_NEW_RF", 39 [UW2453_RF] = "UW2453_RF", 40 [AL2230S_RF] = "AL2230S_RF", 41 [RALINK_RF] = "RALINK_RF", 42 [INTERSIL_RF] = "INTERSIL_RF", 43 [RF2959_RF] = "RF2959_RF", 44 [MAXIM_NEW2_RF] = "MAXIM_NEW2_RF", 45 [PHILIPS_RF] = "PHILIPS_RF", 46}; 47 48const char *zd_rf_name(u8 type) 49{ 50 if (type & 0xf0) 51 type = 0; 52 return rfs[type]; 53} 54 55void zd_rf_init(struct zd_rf *rf) 56{ 57 memset(rf, 0, sizeof(*rf)); 58 59 /* default to update channel integration, as almost all RF's do want 60 * this */ 61 rf->update_channel_int = 1; 62} 63 64void zd_rf_clear(struct zd_rf *rf) 65{ 66 if (rf->clear) 67 rf->clear(rf); 68 ZD_MEMCLEAR(rf, sizeof(*rf)); 69} 70 71int zd_rf_init_hw(struct zd_rf *rf, u8 type) 72{ 73 int r = 0; 74 int t; 75 struct zd_chip *chip = zd_rf_to_chip(rf); 76 77 ZD_ASSERT(mutex_is_locked(&chip->mutex)); 78 switch (type) { 79 case RF2959_RF: 80 r = zd_rf_init_rf2959(rf); 81 break; 82 case AL2230_RF: 83 case AL2230S_RF: 84 r = zd_rf_init_al2230(rf); 85 break; 86 case AL7230B_RF: 87 r = zd_rf_init_al7230b(rf); 88 break; 89 case MAXIM_NEW_RF: 90 case UW2453_RF: 91 r = zd_rf_init_uw2453(rf); 92 break; 93 default: 94 dev_err(zd_chip_dev(chip), 95 "RF %s %#x is not supported\n", zd_rf_name(type), type); 96 rf->type = 0; 97 return -ENODEV; 98 } 99 100 if (r) 101 return r; 102 103 rf->type = type; 104 105 r = zd_chip_lock_phy_regs(chip); 106 if (r) 107 return r; 108 t = rf->init_hw(rf); 109 r = zd_chip_unlock_phy_regs(chip); 110 if (t) 111 r = t; 112 return r; 113} 114 115int zd_rf_scnprint_id(struct zd_rf *rf, char *buffer, size_t size) 116{ 117 return scnprintf(buffer, size, "%s", zd_rf_name(rf->type)); 118} 119 120int zd_rf_set_channel(struct zd_rf *rf, u8 channel) 121{ 122 int r; 123 124 ZD_ASSERT(mutex_is_locked(&zd_rf_to_chip(rf)->mutex)); 125 if (channel < MIN_CHANNEL24) 126 return -EINVAL; 127 if (channel > MAX_CHANNEL24) 128 return -EINVAL; 129 dev_dbg_f(zd_chip_dev(zd_rf_to_chip(rf)), "channel: %d\n", channel); 130 131 r = rf->set_channel(rf, channel); 132 if (r >= 0) 133 rf->channel = channel; 134 return r; 135} 136 137int zd_switch_radio_on(struct zd_rf *rf) 138{ 139 int r, t; 140 struct zd_chip *chip = zd_rf_to_chip(rf); 141 142 ZD_ASSERT(mutex_is_locked(&chip->mutex)); 143 r = zd_chip_lock_phy_regs(chip); 144 if (r) 145 return r; 146 t = rf->switch_radio_on(rf); 147 r = zd_chip_unlock_phy_regs(chip); 148 if (t) 149 r = t; 150 return r; 151} 152 153int zd_switch_radio_off(struct zd_rf *rf) 154{ 155 int r, t; 156 struct zd_chip *chip = zd_rf_to_chip(rf); 157 158 /* TODO: move phy regs handling to zd_chip */ 159 ZD_ASSERT(mutex_is_locked(&chip->mutex)); 160 r = zd_chip_lock_phy_regs(chip); 161 if (r) 162 return r; 163 t = rf->switch_radio_off(rf); 164 r = zd_chip_unlock_phy_regs(chip); 165 if (t) 166 r = t; 167 return r; 168} 169 170int zd_rf_patch_6m_band_edge(struct zd_rf *rf, u8 channel) 171{ 172 if (!rf->patch_6m_band_edge) 173 return 0; 174 175 return rf->patch_6m_band_edge(rf, channel); 176} 177 178int zd_rf_generic_patch_6m(struct zd_rf *rf, u8 channel) 179{ 180 return zd_chip_generic_patch_6m_band(zd_rf_to_chip(rf), channel); 181} 182