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, 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, 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	.tx			= rt2x00mac_tx,
136	.wake_tx_queue		= ieee80211_handle_wake_tx_queue,
137	.start			= rt2x00mac_start,
138	.stop			= rt2x00mac_stop,
139	.add_interface		= rt2x00mac_add_interface,
140	.remove_interface	= rt2x00mac_remove_interface,
141	.config			= rt2x00mac_config,
142	.configure_filter	= rt2x00mac_configure_filter,
143	.set_key		= rt2x00mac_set_key,
144	.sw_scan_start		= rt2x00mac_sw_scan_start,
145	.sw_scan_complete	= rt2x00mac_sw_scan_complete,
146	.get_stats		= rt2x00mac_get_stats,
147	.get_key_seq		= rt2800_get_key_seq,
148	.set_rts_threshold	= rt2800_set_rts_threshold,
149	.sta_add		= rt2800_sta_add,
150	.sta_remove		= rt2800_sta_remove,
151	.bss_info_changed	= rt2x00mac_bss_info_changed,
152	.conf_tx		= rt2800_conf_tx,
153	.get_tsf		= rt2800_get_tsf,
154	.rfkill_poll		= rt2x00mac_rfkill_poll,
155	.ampdu_action		= rt2800_ampdu_action,
156	.flush			= rt2x00mac_flush,
157	.get_survey		= rt2800_get_survey,
158	.get_ringparam		= rt2x00mac_get_ringparam,
159	.tx_frames_pending	= rt2x00mac_tx_frames_pending,
160	.reconfig_complete	= rt2x00mac_reconfig_complete,
161};
162
163static const struct rt2800_ops rt2800soc_rt2800_ops = {
164	.register_read		= rt2x00mmio_register_read,
165	.register_read_lock	= rt2x00mmio_register_read, /* same for SoCs */
166	.register_write		= rt2x00mmio_register_write,
167	.register_write_lock	= rt2x00mmio_register_write, /* same for SoCs */
168	.register_multiread	= rt2x00mmio_register_multiread,
169	.register_multiwrite	= rt2x00mmio_register_multiwrite,
170	.regbusy_read		= rt2x00mmio_regbusy_read,
171	.read_eeprom		= rt2800soc_read_eeprom,
172	.hwcrypt_disabled	= rt2800soc_hwcrypt_disabled,
173	.drv_write_firmware	= rt2800soc_write_firmware,
174	.drv_init_registers	= rt2800mmio_init_registers,
175	.drv_get_txwi		= rt2800mmio_get_txwi,
176	.drv_get_dma_done	= rt2800mmio_get_dma_done,
177};
178
179static const struct rt2x00lib_ops rt2800soc_rt2x00_ops = {
180	.irq_handler		= rt2800mmio_interrupt,
181	.txstatus_tasklet	= rt2800mmio_txstatus_tasklet,
182	.pretbtt_tasklet	= rt2800mmio_pretbtt_tasklet,
183	.tbtt_tasklet		= rt2800mmio_tbtt_tasklet,
184	.rxdone_tasklet		= rt2800mmio_rxdone_tasklet,
185	.autowake_tasklet	= rt2800mmio_autowake_tasklet,
186	.probe_hw		= rt2800mmio_probe_hw,
187	.get_firmware_name	= rt2800soc_get_firmware_name,
188	.check_firmware		= rt2800soc_check_firmware,
189	.load_firmware		= rt2800soc_load_firmware,
190	.initialize		= rt2x00mmio_initialize,
191	.uninitialize		= rt2x00mmio_uninitialize,
192	.get_entry_state	= rt2800mmio_get_entry_state,
193	.clear_entry		= rt2800mmio_clear_entry,
194	.set_device_state	= rt2800soc_set_device_state,
195	.rfkill_poll		= rt2800_rfkill_poll,
196	.link_stats		= rt2800_link_stats,
197	.reset_tuner		= rt2800_reset_tuner,
198	.link_tuner		= rt2800_link_tuner,
199	.gain_calibration	= rt2800_gain_calibration,
200	.vco_calibration	= rt2800_vco_calibration,
201	.watchdog		= rt2800_watchdog,
202	.start_queue		= rt2800mmio_start_queue,
203	.kick_queue		= rt2800mmio_kick_queue,
204	.stop_queue		= rt2800mmio_stop_queue,
205	.flush_queue		= rt2800mmio_flush_queue,
206	.write_tx_desc		= rt2800mmio_write_tx_desc,
207	.write_tx_data		= rt2800_write_tx_data,
208	.write_beacon		= rt2800_write_beacon,
209	.clear_beacon		= rt2800_clear_beacon,
210	.fill_rxdone		= rt2800mmio_fill_rxdone,
211	.config_shared_key	= rt2800_config_shared_key,
212	.config_pairwise_key	= rt2800_config_pairwise_key,
213	.config_filter		= rt2800_config_filter,
214	.config_intf		= rt2800_config_intf,
215	.config_erp		= rt2800_config_erp,
216	.config_ant		= rt2800_config_ant,
217	.config			= rt2800_config,
218	.pre_reset_hw		= rt2800_pre_reset_hw,
219};
220
221static const struct rt2x00_ops rt2800soc_ops = {
222	.name			= KBUILD_MODNAME,
223	.drv_data_size		= sizeof(struct rt2800_drv_data),
224	.max_ap_intf		= 8,
225	.eeprom_size		= EEPROM_SIZE,
226	.rf_size		= RF_SIZE,
227	.tx_queues		= NUM_TX_QUEUES,
228	.queue_init		= rt2800mmio_queue_init,
229	.lib			= &rt2800soc_rt2x00_ops,
230	.drv			= &rt2800soc_rt2800_ops,
231	.hw			= &rt2800soc_mac80211_ops,
232#ifdef CONFIG_RT2X00_LIB_DEBUGFS
233	.debugfs		= &rt2800_rt2x00debug,
234#endif /* CONFIG_RT2X00_LIB_DEBUGFS */
235};
236
237static int rt2800soc_probe(struct platform_device *pdev)
238{
239	return rt2x00soc_probe(pdev, &rt2800soc_ops);
240}
241
242static struct platform_driver rt2800soc_driver = {
243	.driver		= {
244		.name		= "rt2800_wmac",
245		.mod_name	= KBUILD_MODNAME,
246	},
247	.probe		= rt2800soc_probe,
248	.remove		= rt2x00soc_remove,
249	.suspend	= rt2x00soc_suspend,
250	.resume		= rt2x00soc_resume,
251};
252
253module_platform_driver(rt2800soc_driver);
254
255MODULE_AUTHOR(DRV_PROJECT);
256MODULE_VERSION(DRV_VERSION);
257MODULE_DESCRIPTION("Ralink WiSoC Wireless LAN driver.");
258MODULE_LICENSE("GPL");
259