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1// SPDX-License-Identifier: GPL-2.0-or-later2/* Copyright (C) 2009 - 2010 Ivo van Doorn <IvDoorn@gmail.com>3 * Copyright (C) 2009 Alban Browaeys <prahal@yahoo.com>4 * Copyright (C) 2009 Felix Fietkau <nbd@openwrt.org>5 * Copyright (C) 2009 Luis Correia <luis.f.correia@gmail.com>6 * Copyright (C) 2009 Mattias Nissler <mattias.nissler@gmx.de>7 * Copyright (C) 2009 Mark Asselstine <asselsm@gmail.com>8 * Copyright (C) 2009 Xose Vazquez Perez <xose.vazquez@gmail.com>9 * Copyright (C) 2009 Bart Zolnierkiewicz <bzolnier@gmail.com>10 * <http://rt2x00.serialmonkey.com>11 */12 13/* Module: rt2800soc14 * Abstract: rt2800 WiSoC specific routines.15 */16 17#include <linux/etherdevice.h>18#include <linux/init.h>19#include <linux/kernel.h>20#include <linux/module.h>21#include <linux/platform_device.h>22 23#include "rt2x00.h"24#include "rt2x00mmio.h"25#include "rt2x00soc.h"26#include "rt2800.h"27#include "rt2800lib.h"28#include "rt2800mmio.h"29 30/* Allow hardware encryption to be disabled. */31static bool modparam_nohwcrypt;32module_param_named(nohwcrypt, modparam_nohwcrypt, bool, 0444);33MODULE_PARM_DESC(nohwcrypt, "Disable hardware encryption.");34 35static bool rt2800soc_hwcrypt_disabled(struct rt2x00_dev *rt2x00dev)36{37 return modparam_nohwcrypt;38}39 40static void rt2800soc_disable_radio(struct rt2x00_dev *rt2x00dev)41{42 u32 reg;43 44 rt2800_disable_radio(rt2x00dev);45 rt2x00mmio_register_write(rt2x00dev, PWR_PIN_CFG, 0);46 47 reg = 0;48 if (rt2x00_rt(rt2x00dev, RT3883))49 rt2x00_set_field32(®, TX_PIN_CFG_RFTR_EN, 1);50 51 rt2x00mmio_register_write(rt2x00dev, TX_PIN_CFG, reg);52}53 54static int rt2800soc_set_device_state(struct rt2x00_dev *rt2x00dev,55 enum dev_state state)56{57 int retval = 0;58 59 switch (state) {60 case STATE_RADIO_ON:61 retval = rt2800mmio_enable_radio(rt2x00dev);62 break;63 64 case STATE_RADIO_OFF:65 rt2800soc_disable_radio(rt2x00dev);66 break;67 68 case STATE_RADIO_IRQ_ON:69 case STATE_RADIO_IRQ_OFF:70 rt2800mmio_toggle_irq(rt2x00dev, state);71 break;72 73 case STATE_DEEP_SLEEP:74 case STATE_SLEEP:75 case STATE_STANDBY:76 case STATE_AWAKE:77 /* These states are not supported, but don't report an error */78 retval = 0;79 break;80 81 default:82 retval = -ENOTSUPP;83 break;84 }85 86 if (unlikely(retval))87 rt2x00_err(rt2x00dev, "Device failed to enter state %d (%d)\n",88 state, retval);89 90 return retval;91}92 93static int rt2800soc_read_eeprom(struct rt2x00_dev *rt2x00dev)94{95 void __iomem *base_addr = ioremap(0x1F040000, EEPROM_SIZE);96 97 if (!base_addr)98 return -ENOMEM;99 100 memcpy_fromio(rt2x00dev->eeprom, base_addr, EEPROM_SIZE);101 102 iounmap(base_addr);103 return 0;104}105 106/* Firmware functions */107static char *rt2800soc_get_firmware_name(struct rt2x00_dev *rt2x00dev)108{109 WARN_ON_ONCE(1);110 return NULL;111}112 113static int rt2800soc_load_firmware(struct rt2x00_dev *rt2x00dev,114 const u8 *data, const size_t len)115{116 WARN_ON_ONCE(1);117 return 0;118}119 120static int rt2800soc_check_firmware(struct rt2x00_dev *rt2x00dev,121 const u8 *data, const size_t len)122{123 WARN_ON_ONCE(1);124 return 0;125}126 127static int rt2800soc_write_firmware(struct rt2x00_dev *rt2x00dev,128 const u8 *data, const size_t len)129{130 WARN_ON_ONCE(1);131 return 0;132}133 134static const struct ieee80211_ops rt2800soc_mac80211_ops = {135 .add_chanctx = ieee80211_emulate_add_chanctx,136 .remove_chanctx = ieee80211_emulate_remove_chanctx,137 .change_chanctx = ieee80211_emulate_change_chanctx,138 .switch_vif_chanctx = ieee80211_emulate_switch_vif_chanctx,139 .tx = rt2x00mac_tx,140 .wake_tx_queue = ieee80211_handle_wake_tx_queue,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_key_seq = rt2800_get_key_seq,152 .set_rts_threshold = rt2800_set_rts_threshold,153 .sta_add = rt2800_sta_add,154 .sta_remove = rt2800_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 .reconfig_complete = rt2x00mac_reconfig_complete,165};166 167static const struct rt2800_ops rt2800soc_rt2800_ops = {168 .register_read = rt2x00mmio_register_read,169 .register_read_lock = rt2x00mmio_register_read, /* same for SoCs */170 .register_write = rt2x00mmio_register_write,171 .register_write_lock = rt2x00mmio_register_write, /* same for SoCs */172 .register_multiread = rt2x00mmio_register_multiread,173 .register_multiwrite = rt2x00mmio_register_multiwrite,174 .regbusy_read = rt2x00mmio_regbusy_read,175 .read_eeprom = rt2800soc_read_eeprom,176 .hwcrypt_disabled = rt2800soc_hwcrypt_disabled,177 .drv_write_firmware = rt2800soc_write_firmware,178 .drv_init_registers = rt2800mmio_init_registers,179 .drv_get_txwi = rt2800mmio_get_txwi,180 .drv_get_dma_done = rt2800mmio_get_dma_done,181};182 183static const struct rt2x00lib_ops rt2800soc_rt2x00_ops = {184 .irq_handler = rt2800mmio_interrupt,185 .txstatus_tasklet = rt2800mmio_txstatus_tasklet,186 .pretbtt_tasklet = rt2800mmio_pretbtt_tasklet,187 .tbtt_tasklet = rt2800mmio_tbtt_tasklet,188 .rxdone_tasklet = rt2800mmio_rxdone_tasklet,189 .autowake_tasklet = rt2800mmio_autowake_tasklet,190 .probe_hw = rt2800mmio_probe_hw,191 .get_firmware_name = rt2800soc_get_firmware_name,192 .check_firmware = rt2800soc_check_firmware,193 .load_firmware = rt2800soc_load_firmware,194 .initialize = rt2x00mmio_initialize,195 .uninitialize = rt2x00mmio_uninitialize,196 .get_entry_state = rt2800mmio_get_entry_state,197 .clear_entry = rt2800mmio_clear_entry,198 .set_device_state = rt2800soc_set_device_state,199 .rfkill_poll = rt2800_rfkill_poll,200 .link_stats = rt2800_link_stats,201 .reset_tuner = rt2800_reset_tuner,202 .link_tuner = rt2800_link_tuner,203 .gain_calibration = rt2800_gain_calibration,204 .vco_calibration = rt2800_vco_calibration,205 .watchdog = rt2800_watchdog,206 .start_queue = rt2800mmio_start_queue,207 .kick_queue = rt2800mmio_kick_queue,208 .stop_queue = rt2800mmio_stop_queue,209 .flush_queue = rt2800mmio_flush_queue,210 .write_tx_desc = rt2800mmio_write_tx_desc,211 .write_tx_data = rt2800_write_tx_data,212 .write_beacon = rt2800_write_beacon,213 .clear_beacon = rt2800_clear_beacon,214 .fill_rxdone = rt2800mmio_fill_rxdone,215 .config_shared_key = rt2800_config_shared_key,216 .config_pairwise_key = rt2800_config_pairwise_key,217 .config_filter = rt2800_config_filter,218 .config_intf = rt2800_config_intf,219 .config_erp = rt2800_config_erp,220 .config_ant = rt2800_config_ant,221 .config = rt2800_config,222 .pre_reset_hw = rt2800_pre_reset_hw,223};224 225static const struct rt2x00_ops rt2800soc_ops = {226 .name = KBUILD_MODNAME,227 .drv_data_size = sizeof(struct rt2800_drv_data),228 .max_ap_intf = 8,229 .eeprom_size = EEPROM_SIZE,230 .rf_size = RF_SIZE,231 .tx_queues = NUM_TX_QUEUES,232 .queue_init = rt2800mmio_queue_init,233 .lib = &rt2800soc_rt2x00_ops,234 .drv = &rt2800soc_rt2800_ops,235 .hw = &rt2800soc_mac80211_ops,236#ifdef CONFIG_RT2X00_LIB_DEBUGFS237 .debugfs = &rt2800_rt2x00debug,238#endif /* CONFIG_RT2X00_LIB_DEBUGFS */239};240 241static int rt2800soc_probe(struct platform_device *pdev)242{243 return rt2x00soc_probe(pdev, &rt2800soc_ops);244}245 246static struct platform_driver rt2800soc_driver = {247 .driver = {248 .name = "rt2800_wmac",249 .mod_name = KBUILD_MODNAME,250 },251 .probe = rt2800soc_probe,252 .remove = rt2x00soc_remove,253 .suspend = rt2x00soc_suspend,254 .resume = rt2x00soc_resume,255};256 257module_platform_driver(rt2800soc_driver);258 259MODULE_AUTHOR(DRV_PROJECT);260MODULE_VERSION(DRV_VERSION);261MODULE_DESCRIPTION("Ralink WiSoC Wireless LAN driver.");262MODULE_LICENSE("GPL");263