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Linux/drivers/net/wireless/rt2x00/rt2800soc.c

  1 /*      Copyright (C) 2009 - 2010 Ivo van Doorn <IvDoorn@gmail.com>
  2  *      Copyright (C) 2009 Alban Browaeys <prahal@yahoo.com>
  3  *      Copyright (C) 2009 Felix Fietkau <nbd@openwrt.org>
  4  *      Copyright (C) 2009 Luis Correia <luis.f.correia@gmail.com>
  5  *      Copyright (C) 2009 Mattias Nissler <mattias.nissler@gmx.de>
  6  *      Copyright (C) 2009 Mark Asselstine <asselsm@gmail.com>
  7  *      Copyright (C) 2009 Xose Vazquez Perez <xose.vazquez@gmail.com>
  8  *      Copyright (C) 2009 Bart Zolnierkiewicz <bzolnier@gmail.com>
  9  *      <http://rt2x00.serialmonkey.com>
 10  *
 11  *      This program is free software; you can redistribute it and/or modify
 12  *      it under the terms of the GNU General Public License as published by
 13  *      the Free Software Foundation; either version 2 of the License, or
 14  *      (at your option) any later version.
 15  *
 16  *      This program is distributed in the hope that it will be useful,
 17  *      but WITHOUT ANY WARRANTY; without even the implied warranty of
 18  *      MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
 19  *      GNU General Public License for more details.
 20  *
 21  *      You should have received a copy of the GNU General Public License
 22  *      along with this program; if not, see <http://www.gnu.org/licenses/>.
 23  */
 24 
 25 /*      Module: rt2800soc
 26  *      Abstract: rt2800 WiSoC specific routines.
 27  */
 28 
 29 #include <linux/etherdevice.h>
 30 #include <linux/init.h>
 31 #include <linux/kernel.h>
 32 #include <linux/module.h>
 33 #include <linux/platform_device.h>
 34 
 35 #include "rt2x00.h"
 36 #include "rt2x00mmio.h"
 37 #include "rt2x00soc.h"
 38 #include "rt2800.h"
 39 #include "rt2800lib.h"
 40 #include "rt2800mmio.h"
 41 
 42 /* Allow hardware encryption to be disabled. */
 43 static bool modparam_nohwcrypt;
 44 module_param_named(nohwcrypt, modparam_nohwcrypt, bool, S_IRUGO);
 45 MODULE_PARM_DESC(nohwcrypt, "Disable hardware encryption.");
 46 
 47 static bool rt2800soc_hwcrypt_disabled(struct rt2x00_dev *rt2x00dev)
 48 {
 49         return modparam_nohwcrypt;
 50 }
 51 
 52 static void rt2800soc_disable_radio(struct rt2x00_dev *rt2x00dev)
 53 {
 54         rt2800_disable_radio(rt2x00dev);
 55         rt2x00mmio_register_write(rt2x00dev, PWR_PIN_CFG, 0);
 56         rt2x00mmio_register_write(rt2x00dev, TX_PIN_CFG, 0);
 57 }
 58 
 59 static int rt2800soc_set_device_state(struct rt2x00_dev *rt2x00dev,
 60                                       enum dev_state state)
 61 {
 62         int retval = 0;
 63 
 64         switch (state) {
 65         case STATE_RADIO_ON:
 66                 retval = rt2800mmio_enable_radio(rt2x00dev);
 67                 break;
 68 
 69         case STATE_RADIO_OFF:
 70                 rt2800soc_disable_radio(rt2x00dev);
 71                 break;
 72 
 73         case STATE_RADIO_IRQ_ON:
 74         case STATE_RADIO_IRQ_OFF:
 75                 rt2800mmio_toggle_irq(rt2x00dev, state);
 76                 break;
 77 
 78         case STATE_DEEP_SLEEP:
 79         case STATE_SLEEP:
 80         case STATE_STANDBY:
 81         case STATE_AWAKE:
 82                 /* These states are not supported, but don't report an error */
 83                 retval = 0;
 84                 break;
 85 
 86         default:
 87                 retval = -ENOTSUPP;
 88                 break;
 89         }
 90 
 91         if (unlikely(retval))
 92                 rt2x00_err(rt2x00dev, "Device failed to enter state %d (%d)\n",
 93                            state, retval);
 94 
 95         return retval;
 96 }
 97 
 98 static int rt2800soc_read_eeprom(struct rt2x00_dev *rt2x00dev)
 99 {
100         void __iomem *base_addr = ioremap(0x1F040000, EEPROM_SIZE);
101 
102         if (!base_addr)
103                 return -ENOMEM;
104 
105         memcpy_fromio(rt2x00dev->eeprom, base_addr, EEPROM_SIZE);
106 
107         iounmap(base_addr);
108         return 0;
109 }
110 
111 /* Firmware functions */
112 static char *rt2800soc_get_firmware_name(struct rt2x00_dev *rt2x00dev)
113 {
114         WARN_ON_ONCE(1);
115         return NULL;
116 }
117 
118 static int rt2800soc_load_firmware(struct rt2x00_dev *rt2x00dev,
119                                    const u8 *data, const size_t len)
120 {
121         WARN_ON_ONCE(1);
122         return 0;
123 }
124 
125 static int rt2800soc_check_firmware(struct rt2x00_dev *rt2x00dev,
126                                     const u8 *data, const size_t len)
127 {
128         WARN_ON_ONCE(1);
129         return 0;
130 }
131 
132 static int rt2800soc_write_firmware(struct rt2x00_dev *rt2x00dev,
133                                     const u8 *data, const size_t len)
134 {
135         WARN_ON_ONCE(1);
136         return 0;
137 }
138 
139 static const struct ieee80211_ops rt2800soc_mac80211_ops = {
140         .tx                     = rt2x00mac_tx,
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_tkip_seq           = rt2800_get_tkip_seq,
152         .set_rts_threshold      = rt2800_set_rts_threshold,
153         .sta_add                = rt2x00mac_sta_add,
154         .sta_remove             = rt2x00mac_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 };
165 
166 static const struct rt2800_ops rt2800soc_rt2800_ops = {
167         .register_read          = rt2x00mmio_register_read,
168         .register_read_lock     = rt2x00mmio_register_read, /* same for SoCs */
169         .register_write         = rt2x00mmio_register_write,
170         .register_write_lock    = rt2x00mmio_register_write, /* same for SoCs */
171         .register_multiread     = rt2x00mmio_register_multiread,
172         .register_multiwrite    = rt2x00mmio_register_multiwrite,
173         .regbusy_read           = rt2x00mmio_regbusy_read,
174         .read_eeprom            = rt2800soc_read_eeprom,
175         .hwcrypt_disabled       = rt2800soc_hwcrypt_disabled,
176         .drv_write_firmware     = rt2800soc_write_firmware,
177         .drv_init_registers     = rt2800mmio_init_registers,
178         .drv_get_txwi           = rt2800mmio_get_txwi,
179 };
180 
181 static const struct rt2x00lib_ops rt2800soc_rt2x00_ops = {
182         .irq_handler            = rt2800mmio_interrupt,
183         .txstatus_tasklet       = rt2800mmio_txstatus_tasklet,
184         .pretbtt_tasklet        = rt2800mmio_pretbtt_tasklet,
185         .tbtt_tasklet           = rt2800mmio_tbtt_tasklet,
186         .rxdone_tasklet         = rt2800mmio_rxdone_tasklet,
187         .autowake_tasklet       = rt2800mmio_autowake_tasklet,
188         .probe_hw               = rt2800_probe_hw,
189         .get_firmware_name      = rt2800soc_get_firmware_name,
190         .check_firmware         = rt2800soc_check_firmware,
191         .load_firmware          = rt2800soc_load_firmware,
192         .initialize             = rt2x00mmio_initialize,
193         .uninitialize           = rt2x00mmio_uninitialize,
194         .get_entry_state        = rt2800mmio_get_entry_state,
195         .clear_entry            = rt2800mmio_clear_entry,
196         .set_device_state       = rt2800soc_set_device_state,
197         .rfkill_poll            = rt2800_rfkill_poll,
198         .link_stats             = rt2800_link_stats,
199         .reset_tuner            = rt2800_reset_tuner,
200         .link_tuner             = rt2800_link_tuner,
201         .gain_calibration       = rt2800_gain_calibration,
202         .vco_calibration        = rt2800_vco_calibration,
203         .start_queue            = rt2800mmio_start_queue,
204         .kick_queue             = rt2800mmio_kick_queue,
205         .stop_queue             = rt2800mmio_stop_queue,
206         .flush_queue            = rt2x00mmio_flush_queue,
207         .write_tx_desc          = rt2800mmio_write_tx_desc,
208         .write_tx_data          = rt2800_write_tx_data,
209         .write_beacon           = rt2800_write_beacon,
210         .clear_beacon           = rt2800_clear_beacon,
211         .fill_rxdone            = rt2800mmio_fill_rxdone,
212         .config_shared_key      = rt2800_config_shared_key,
213         .config_pairwise_key    = rt2800_config_pairwise_key,
214         .config_filter          = rt2800_config_filter,
215         .config_intf            = rt2800_config_intf,
216         .config_erp             = rt2800_config_erp,
217         .config_ant             = rt2800_config_ant,
218         .config                 = rt2800_config,
219         .sta_add                = rt2800_sta_add,
220         .sta_remove             = rt2800_sta_remove,
221 };
222 
223 static const struct rt2x00_ops rt2800soc_ops = {
224         .name                   = KBUILD_MODNAME,
225         .drv_data_size          = sizeof(struct rt2800_drv_data),
226         .max_ap_intf            = 8,
227         .eeprom_size            = EEPROM_SIZE,
228         .rf_size                = RF_SIZE,
229         .tx_queues              = NUM_TX_QUEUES,
230         .queue_init             = rt2800mmio_queue_init,
231         .lib                    = &rt2800soc_rt2x00_ops,
232         .drv                    = &rt2800soc_rt2800_ops,
233         .hw                     = &rt2800soc_mac80211_ops,
234 #ifdef CONFIG_RT2X00_LIB_DEBUGFS
235         .debugfs                = &rt2800_rt2x00debug,
236 #endif /* CONFIG_RT2X00_LIB_DEBUGFS */
237 };
238 
239 static int rt2800soc_probe(struct platform_device *pdev)
240 {
241         return rt2x00soc_probe(pdev, &rt2800soc_ops);
242 }
243 
244 static struct platform_driver rt2800soc_driver = {
245         .driver         = {
246                 .name           = "rt2800_wmac",
247                 .owner          = THIS_MODULE,
248                 .mod_name       = KBUILD_MODNAME,
249         },
250         .probe          = rt2800soc_probe,
251         .remove         = rt2x00soc_remove,
252         .suspend        = rt2x00soc_suspend,
253         .resume         = rt2x00soc_resume,
254 };
255 
256 module_platform_driver(rt2800soc_driver);
257 
258 MODULE_AUTHOR(DRV_PROJECT);
259 MODULE_VERSION(DRV_VERSION);
260 MODULE_DESCRIPTION("Ralink WiSoC Wireless LAN driver.");
261 MODULE_LICENSE("GPL");
262 

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