1 // SPDX-License-Identifier: GPL-2.0-or-later 2 /* ZD1211 USB-WLAN driver for Linux 3 * 4 * Copyright (C) 2005-2007 Ulrich Kunitz <kune@deine-taler.de> 5 * Copyright (C) 2006-2007 Daniel Drake <dsd@gentoo.org> 6 */ 7 8 #include <linux/errno.h> 9 #include <linux/string.h> 10 11 #include "zd_def.h" 12 #include "zd_rf.h" 13 #include "zd_mac.h" 14 #include "zd_chip.h" 15 16 static const char * const rfs[] = { 17 [0] = "unknown RF0", 18 [1] = "unknown RF1", 19 [UW2451_RF] = "UW2451_RF", 20 [UCHIP_RF] = "UCHIP_RF", 21 [AL2230_RF] = "AL2230_RF", 22 [AL7230B_RF] = "AL7230B_RF", 23 [THETA_RF] = "THETA_RF", 24 [AL2210_RF] = "AL2210_RF", 25 [MAXIM_NEW_RF] = "MAXIM_NEW_RF", 26 [UW2453_RF] = "UW2453_RF", 27 [AL2230S_RF] = "AL2230S_RF", 28 [RALINK_RF] = "RALINK_RF", 29 [INTERSIL_RF] = "INTERSIL_RF", 30 [RF2959_RF] = "RF2959_RF", 31 [MAXIM_NEW2_RF] = "MAXIM_NEW2_RF", 32 [PHILIPS_RF] = "PHILIPS_RF", 33 }; 34 35 const char *zd_rf_name(u8 type) 36 { 37 if (type & 0xf0) 38 type = 0; 39 return rfs[type]; 40 } 41 42 void zd_rf_init(struct zd_rf *rf) 43 { 44 memset(rf, 0, sizeof(*rf)); 45 46 /* default to update channel integration, as almost all RF's do want 47 * this */ 48 rf->update_channel_int = 1; 49 } 50 51 void zd_rf_clear(struct zd_rf *rf) 52 { 53 if (rf->clear) 54 rf->clear(rf); 55 ZD_MEMCLEAR(rf, sizeof(*rf)); 56 } 57 58 int zd_rf_init_hw(struct zd_rf *rf, u8 type) 59 { 60 int r = 0; 61 int t; 62 struct zd_chip *chip = zd_rf_to_chip(rf); 63 64 ZD_ASSERT(mutex_is_locked(&chip->mutex)); 65 switch (type) { 66 case RF2959_RF: 67 r = zd_rf_init_rf2959(rf); 68 break; 69 case AL2230_RF: 70 case AL2230S_RF: 71 r = zd_rf_init_al2230(rf); 72 break; 73 case AL7230B_RF: 74 r = zd_rf_init_al7230b(rf); 75 break; 76 case MAXIM_NEW_RF: 77 case UW2453_RF: 78 r = zd_rf_init_uw2453(rf); 79 break; 80 default: 81 dev_err(zd_chip_dev(chip), 82 "RF %s %#x is not supported\n", zd_rf_name(type), type); 83 rf->type = 0; 84 return -ENODEV; 85 } 86 87 if (r) 88 return r; 89 90 rf->type = type; 91 92 r = zd_chip_lock_phy_regs(chip); 93 if (r) 94 return r; 95 t = rf->init_hw(rf); 96 r = zd_chip_unlock_phy_regs(chip); 97 if (t) 98 r = t; 99 return r; 100 } 101 102 int zd_rf_scnprint_id(struct zd_rf *rf, char *buffer, size_t size) 103 { 104 return scnprintf(buffer, size, "%s", zd_rf_name(rf->type)); 105 } 106 107 int zd_rf_set_channel(struct zd_rf *rf, u8 channel) 108 { 109 int r; 110 111 ZD_ASSERT(mutex_is_locked(&zd_rf_to_chip(rf)->mutex)); 112 if (channel < MIN_CHANNEL24) 113 return -EINVAL; 114 if (channel > MAX_CHANNEL24) 115 return -EINVAL; 116 dev_dbg_f(zd_chip_dev(zd_rf_to_chip(rf)), "channel: %d\n", channel); 117 118 r = rf->set_channel(rf, channel); 119 if (r >= 0) 120 rf->channel = channel; 121 return r; 122 } 123 124 int zd_switch_radio_on(struct zd_rf *rf) 125 { 126 int r, t; 127 struct zd_chip *chip = zd_rf_to_chip(rf); 128 129 ZD_ASSERT(mutex_is_locked(&chip->mutex)); 130 r = zd_chip_lock_phy_regs(chip); 131 if (r) 132 return r; 133 t = rf->switch_radio_on(rf); 134 r = zd_chip_unlock_phy_regs(chip); 135 if (t) 136 r = t; 137 return r; 138 } 139 140 int zd_switch_radio_off(struct zd_rf *rf) 141 { 142 int r, t; 143 struct zd_chip *chip = zd_rf_to_chip(rf); 144 145 /* TODO: move phy regs handling to zd_chip */ 146 ZD_ASSERT(mutex_is_locked(&chip->mutex)); 147 r = zd_chip_lock_phy_regs(chip); 148 if (r) 149 return r; 150 t = rf->switch_radio_off(rf); 151 r = zd_chip_unlock_phy_regs(chip); 152 if (t) 153 r = t; 154 return r; 155 } 156 157 int zd_rf_patch_6m_band_edge(struct zd_rf *rf, u8 channel) 158 { 159 if (!rf->patch_6m_band_edge) 160 return 0; 161 162 return rf->patch_6m_band_edge(rf, channel); 163 } 164 165 int zd_rf_generic_patch_6m(struct zd_rf *rf, u8 channel) 166 { 167 return zd_chip_generic_patch_6m_band(zd_rf_to_chip(rf), channel); 168 } 169 170