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. */
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, value: 0);
46
47 reg = 0;
48 if (rt2x00_rt(rt2x00dev, RT3883))
49 rt2x00_set_field32(&reg, TX_PIN_CFG_RFTR_EN, 1);
50
51 rt2x00mmio_register_write(rt2x00dev, TX_PIN_CFG, value: 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(offset: 0x1F040000, EEPROM_SIZE);
96
97 if (!base_addr)
98 return -ENOMEM;
99
100 memcpy_fromio(rt2x00dev->eeprom, base_addr, EEPROM_SIZE);
101
102 iounmap(addr: 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_DEBUGFS
237 .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, ops: &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

source code of linux/drivers/net/wireless/ralink/rt2x00/rt2800soc.c