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, value: 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, value: 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(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 */ |
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, ops: &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 | |