1/* Copyright (C) 2009 - 2010 Ivo van Doorn <IvDoorn@gmail.com> 2 * Copyright (C) 2009 Alban Browaeys <prahal@yahoo.com> 3 * Copyright (C) 2009 Felix Fietkau <nbd@openwrt.org> 4 * Copyright (C) 2009 Luis Correia <luis.f.correia@gmail.com> 5 * Copyright (C) 2009 Mattias Nissler <mattias.nissler@gmx.de> 6 * Copyright (C) 2009 Mark Asselstine <asselsm@gmail.com> 7 * Copyright (C) 2009 Xose Vazquez Perez <xose.vazquez@gmail.com> 8 * Copyright (C) 2009 Bart Zolnierkiewicz <bzolnier@gmail.com> 9 * <http://rt2x00.serialmonkey.com> 10 * 11 * This program is free software; you can redistribute it and/or modify 12 * it under the terms of the GNU General Public License as published by 13 * the Free Software Foundation; either version 2 of the License, or 14 * (at your option) any later version. 15 * 16 * This program is distributed in the hope that it will be useful, 17 * but WITHOUT ANY WARRANTY; without even the implied warranty of 18 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the 19 * GNU General Public License for more details. 20 * 21 * You should have received a copy of the GNU General Public License 22 * along with this program; if not, see <http://www.gnu.org/licenses/>. 23 */ 24 25/* Module: rt2800soc 26 * Abstract: rt2800 WiSoC specific routines. 27 */ 28 29#include <linux/etherdevice.h> 30#include <linux/init.h> 31#include <linux/kernel.h> 32#include <linux/module.h> 33#include <linux/platform_device.h> 34 35#include "rt2x00.h" 36#include "rt2x00mmio.h" 37#include "rt2x00soc.h" 38#include "rt2800.h" 39#include "rt2800lib.h" 40#include "rt2800mmio.h" 41 42/* Allow hardware encryption to be disabled. */ 43static bool modparam_nohwcrypt; 44module_param_named(nohwcrypt, modparam_nohwcrypt, bool, S_IRUGO); 45MODULE_PARM_DESC(nohwcrypt, "Disable hardware encryption."); 46 47static bool rt2800soc_hwcrypt_disabled(struct rt2x00_dev *rt2x00dev) 48{ 49 return modparam_nohwcrypt; 50} 51 52static void rt2800soc_disable_radio(struct rt2x00_dev *rt2x00dev) 53{ 54 rt2800_disable_radio(rt2x00dev); 55 rt2x00mmio_register_write(rt2x00dev, PWR_PIN_CFG, 0); 56 rt2x00mmio_register_write(rt2x00dev, TX_PIN_CFG, 0); 57} 58 59static int rt2800soc_set_device_state(struct rt2x00_dev *rt2x00dev, 60 enum dev_state state) 61{ 62 int retval = 0; 63 64 switch (state) { 65 case STATE_RADIO_ON: 66 retval = rt2800mmio_enable_radio(rt2x00dev); 67 break; 68 69 case STATE_RADIO_OFF: 70 rt2800soc_disable_radio(rt2x00dev); 71 break; 72 73 case STATE_RADIO_IRQ_ON: 74 case STATE_RADIO_IRQ_OFF: 75 rt2800mmio_toggle_irq(rt2x00dev, state); 76 break; 77 78 case STATE_DEEP_SLEEP: 79 case STATE_SLEEP: 80 case STATE_STANDBY: 81 case STATE_AWAKE: 82 /* These states are not supported, but don't report an error */ 83 retval = 0; 84 break; 85 86 default: 87 retval = -ENOTSUPP; 88 break; 89 } 90 91 if (unlikely(retval)) 92 rt2x00_err(rt2x00dev, "Device failed to enter state %d (%d)\n", 93 state, retval); 94 95 return retval; 96} 97 98static int rt2800soc_read_eeprom(struct rt2x00_dev *rt2x00dev) 99{ 100 void __iomem *base_addr = ioremap(0x1F040000, EEPROM_SIZE); 101 102 if (!base_addr) 103 return -ENOMEM; 104 105 memcpy_fromio(rt2x00dev->eeprom, base_addr, EEPROM_SIZE); 106 107 iounmap(base_addr); 108 return 0; 109} 110 111/* Firmware functions */ 112static char *rt2800soc_get_firmware_name(struct rt2x00_dev *rt2x00dev) 113{ 114 WARN_ON_ONCE(1); 115 return NULL; 116} 117 118static int rt2800soc_load_firmware(struct rt2x00_dev *rt2x00dev, 119 const u8 *data, const size_t len) 120{ 121 WARN_ON_ONCE(1); 122 return 0; 123} 124 125static int rt2800soc_check_firmware(struct rt2x00_dev *rt2x00dev, 126 const u8 *data, const size_t len) 127{ 128 WARN_ON_ONCE(1); 129 return 0; 130} 131 132static int rt2800soc_write_firmware(struct rt2x00_dev *rt2x00dev, 133 const u8 *data, const size_t len) 134{ 135 WARN_ON_ONCE(1); 136 return 0; 137} 138 139static const struct ieee80211_ops rt2800soc_mac80211_ops = { 140 .tx = rt2x00mac_tx, 141 .start = rt2x00mac_start, 142 .stop = rt2x00mac_stop, 143 .add_interface = rt2x00mac_add_interface, 144 .remove_interface = rt2x00mac_remove_interface, 145 .config = rt2x00mac_config, 146 .configure_filter = rt2x00mac_configure_filter, 147 .set_key = rt2x00mac_set_key, 148 .sw_scan_start = rt2x00mac_sw_scan_start, 149 .sw_scan_complete = rt2x00mac_sw_scan_complete, 150 .get_stats = rt2x00mac_get_stats, 151 .get_tkip_seq = rt2800_get_tkip_seq, 152 .set_rts_threshold = rt2800_set_rts_threshold, 153 .sta_add = rt2x00mac_sta_add, 154 .sta_remove = rt2x00mac_sta_remove, 155 .bss_info_changed = rt2x00mac_bss_info_changed, 156 .conf_tx = rt2800_conf_tx, 157 .get_tsf = rt2800_get_tsf, 158 .rfkill_poll = rt2x00mac_rfkill_poll, 159 .ampdu_action = rt2800_ampdu_action, 160 .flush = rt2x00mac_flush, 161 .get_survey = rt2800_get_survey, 162 .get_ringparam = rt2x00mac_get_ringparam, 163 .tx_frames_pending = rt2x00mac_tx_frames_pending, 164}; 165 166static const struct rt2800_ops rt2800soc_rt2800_ops = { 167 .register_read = rt2x00mmio_register_read, 168 .register_read_lock = rt2x00mmio_register_read, /* same for SoCs */ 169 .register_write = rt2x00mmio_register_write, 170 .register_write_lock = rt2x00mmio_register_write, /* same for SoCs */ 171 .register_multiread = rt2x00mmio_register_multiread, 172 .register_multiwrite = rt2x00mmio_register_multiwrite, 173 .regbusy_read = rt2x00mmio_regbusy_read, 174 .read_eeprom = rt2800soc_read_eeprom, 175 .hwcrypt_disabled = rt2800soc_hwcrypt_disabled, 176 .drv_write_firmware = rt2800soc_write_firmware, 177 .drv_init_registers = rt2800mmio_init_registers, 178 .drv_get_txwi = rt2800mmio_get_txwi, 179}; 180 181static const struct rt2x00lib_ops rt2800soc_rt2x00_ops = { 182 .irq_handler = rt2800mmio_interrupt, 183 .txstatus_tasklet = rt2800mmio_txstatus_tasklet, 184 .pretbtt_tasklet = rt2800mmio_pretbtt_tasklet, 185 .tbtt_tasklet = rt2800mmio_tbtt_tasklet, 186 .rxdone_tasklet = rt2800mmio_rxdone_tasklet, 187 .autowake_tasklet = rt2800mmio_autowake_tasklet, 188 .probe_hw = rt2800_probe_hw, 189 .get_firmware_name = rt2800soc_get_firmware_name, 190 .check_firmware = rt2800soc_check_firmware, 191 .load_firmware = rt2800soc_load_firmware, 192 .initialize = rt2x00mmio_initialize, 193 .uninitialize = rt2x00mmio_uninitialize, 194 .get_entry_state = rt2800mmio_get_entry_state, 195 .clear_entry = rt2800mmio_clear_entry, 196 .set_device_state = rt2800soc_set_device_state, 197 .rfkill_poll = rt2800_rfkill_poll, 198 .link_stats = rt2800_link_stats, 199 .reset_tuner = rt2800_reset_tuner, 200 .link_tuner = rt2800_link_tuner, 201 .gain_calibration = rt2800_gain_calibration, 202 .vco_calibration = rt2800_vco_calibration, 203 .start_queue = rt2800mmio_start_queue, 204 .kick_queue = rt2800mmio_kick_queue, 205 .stop_queue = rt2800mmio_stop_queue, 206 .flush_queue = rt2x00mmio_flush_queue, 207 .write_tx_desc = rt2800mmio_write_tx_desc, 208 .write_tx_data = rt2800_write_tx_data, 209 .write_beacon = rt2800_write_beacon, 210 .clear_beacon = rt2800_clear_beacon, 211 .fill_rxdone = rt2800mmio_fill_rxdone, 212 .config_shared_key = rt2800_config_shared_key, 213 .config_pairwise_key = rt2800_config_pairwise_key, 214 .config_filter = rt2800_config_filter, 215 .config_intf = rt2800_config_intf, 216 .config_erp = rt2800_config_erp, 217 .config_ant = rt2800_config_ant, 218 .config = rt2800_config, 219 .sta_add = rt2800_sta_add, 220 .sta_remove = rt2800_sta_remove, 221}; 222 223static const struct rt2x00_ops rt2800soc_ops = { 224 .name = KBUILD_MODNAME, 225 .drv_data_size = sizeof(struct rt2800_drv_data), 226 .max_ap_intf = 8, 227 .eeprom_size = EEPROM_SIZE, 228 .rf_size = RF_SIZE, 229 .tx_queues = NUM_TX_QUEUES, 230 .queue_init = rt2800mmio_queue_init, 231 .lib = &rt2800soc_rt2x00_ops, 232 .drv = &rt2800soc_rt2800_ops, 233 .hw = &rt2800soc_mac80211_ops, 234#ifdef CONFIG_RT2X00_LIB_DEBUGFS 235 .debugfs = &rt2800_rt2x00debug, 236#endif /* CONFIG_RT2X00_LIB_DEBUGFS */ 237}; 238 239static int rt2800soc_probe(struct platform_device *pdev) 240{ 241 return rt2x00soc_probe(pdev, &rt2800soc_ops); 242} 243 244static struct platform_driver rt2800soc_driver = { 245 .driver = { 246 .name = "rt2800_wmac", 247 .owner = THIS_MODULE, 248 .mod_name = KBUILD_MODNAME, 249 }, 250 .probe = rt2800soc_probe, 251 .remove = rt2x00soc_remove, 252 .suspend = rt2x00soc_suspend, 253 .resume = rt2x00soc_resume, 254}; 255 256module_platform_driver(rt2800soc_driver); 257 258MODULE_AUTHOR(DRV_PROJECT); 259MODULE_VERSION(DRV_VERSION); 260MODULE_DESCRIPTION("Ralink WiSoC Wireless LAN driver."); 261MODULE_LICENSE("GPL"); 262