1 // SPDX-License-Identifier: GPL-2.0-or-later 2 /* 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: rt2800soc 14 * 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. */ 31 static bool modparam_nohwcrypt; 32 module_param_named(nohwcrypt, modparam_nohwcrypt, bool, 0444); 33 MODULE_PARM_DESC(nohwcrypt, "Disable hardware encryption."); 34 35 static bool rt2800soc_hwcrypt_disabled(struct rt2x00_dev *rt2x00dev) 36 { 37 return modparam_nohwcrypt; 38 } 39 40 static 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 54 static 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 93 static 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 */ 107 static char *rt2800soc_get_firmware_name(struct rt2x00_dev *rt2x00dev) 108 { 109 WARN_ON_ONCE(1); 110 return NULL; 111 } 112 113 static 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 } 119 120 static 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 } 126 127 static 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 } 133 134 static 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 }; 166 167 static 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 }; 182 183 static 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 }; 224 225 static 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_DEBUGFS 237 .debugfs = &rt2800_rt2x00debug, 238 #endif /* CONFIG_RT2X00_LIB_DEBUGFS */ 239 }; 240 241 static int rt2800soc_probe(struct platform_device *pdev) 242 { 243 return rt2x00soc_probe(pdev, &rt2800soc_ops); 244 } 245 246 static 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 }; 256 257 module_platform_driver(rt2800soc_driver); 258 259 MODULE_AUTHOR(DRV_PROJECT); 260 MODULE_VERSION(DRV_VERSION); 261 MODULE_DESCRIPTION("Ralink WiSoC Wireless LAN driver."); 262 MODULE_LICENSE("GPL"); 263