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, write to the
  23  *      Free Software Foundation, Inc.,
  24  *      59 Temple Place - Suite 330, Boston, MA 02111-1307, USA.
  25  */
  26
  27 /*      Module: rt2800soc
  28  *      Abstract: rt2800 WiSoC specific routines.
  29  */
  30
  31 #include <linux/etherdevice.h>
  32 #include <linux/init.h>
  33 #include <linux/kernel.h>
  34 #include <linux/module.h>
  35 #include <linux/platform_device.h>
  36
  37 #include "rt2x00.h"
  38 #include "rt2x00mmio.h"
  39 #include "rt2x00soc.h"
  40 #include "rt2800.h"
  41 #include "rt2800lib.h"
  42 #include "rt2800mmio.h"
  43
  44 /* Allow hardware encryption to be disabled. */
  45 static bool modparam_nohwcrypt;
  46 module_param_named(nohwcrypt, modparam_nohwcrypt, bool, S_IRUGO);
  47 MODULE_PARM_DESC(nohwcrypt, "Disable hardware encryption.");
  48
  49 static bool rt2800soc_hwcrypt_disabled(struct rt2x00_dev *rt2x00dev)
  50 {
  51         return modparam_nohwcrypt;
  52 }
  53
  54 static void rt2800soc_disable_radio(struct rt2x00_dev *rt2x00dev)
  55 {
  56         rt2800_disable_radio(rt2x00dev);
  57         rt2x00mmio_register_write(rt2x00dev, PWR_PIN_CFG, 0);
  58         rt2x00mmio_register_write(rt2x00dev, TX_PIN_CFG, 0);
  59 }
  60
  61 static int rt2800soc_set_device_state(struct rt2x00_dev *rt2x00dev,
  62                                       enum dev_state state)
  63 {
  64         int retval = 0;
  65
  66         switch (state) {
  67         case STATE_RADIO_ON:
  68                 retval = rt2800mmio_enable_radio(rt2x00dev);
  69                 break;
  70
  71         case STATE_RADIO_OFF:
  72                 rt2800soc_disable_radio(rt2x00dev);
  73                 break;
  74
  75         case STATE_RADIO_IRQ_ON:
  76         case STATE_RADIO_IRQ_OFF:
  77                 rt2800mmio_toggle_irq(rt2x00dev, state);
  78                 break;
  79
  80         case STATE_DEEP_SLEEP:
  81         case STATE_SLEEP:
  82         case STATE_STANDBY:
  83         case STATE_AWAKE:
  84                 /* These states are not supported, but don't report an error */
  85                 retval = 0;
  86                 break;
  87
  88         default:
  89                 retval = -ENOTSUPP;
  90                 break;
  91         }
  92
  93         if (unlikely(retval))
  94                 rt2x00_err(rt2x00dev, "Device failed to enter state %d (%d)\n",
  95                            state, retval);
  96
  97         return retval;
  98 }
  99
 100 static int rt2800soc_read_eeprom(struct rt2x00_dev *rt2x00dev)
 101 {
 102         void __iomem *base_addr = ioremap(0x1F040000, EEPROM_SIZE);
 103
 104         if (!base_addr)
 105                 return -ENOMEM;
 106
 107         memcpy_fromio(rt2x00dev->eeprom, base_addr, EEPROM_SIZE);
 108
 109         iounmap(base_addr);
 110         return 0;
 111 }
 112
 113 /* Firmware functions */
 114 static char *rt2800soc_get_firmware_name(struct rt2x00_dev *rt2x00dev)
 115 {
 116         WARN_ON_ONCE(1);
 117         return NULL;
 118 }
 119
 120 static int rt2800soc_load_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_check_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 int rt2800soc_write_firmware(struct rt2x00_dev *rt2x00dev,
 135                                     const u8 *data, const size_t len)
 136 {
 137         WARN_ON_ONCE(1);
 138         return 0;
 139 }
 140
 141 static const struct ieee80211_ops rt2800soc_mac80211_ops = {
 142         .tx                     = rt2x00mac_tx,
 143         .start                  = rt2x00mac_start,
 144         .stop                   = rt2x00mac_stop,
 145         .add_interface          = rt2x00mac_add_interface,
 146         .remove_interface       = rt2x00mac_remove_interface,
 147         .config                 = rt2x00mac_config,
 148         .configure_filter       = rt2x00mac_configure_filter,
 149         .set_key                = rt2x00mac_set_key,
 150         .sw_scan_start          = rt2x00mac_sw_scan_start,
 151         .sw_scan_complete       = rt2x00mac_sw_scan_complete,
 152         .get_stats              = rt2x00mac_get_stats,
 153         .get_tkip_seq           = rt2800_get_tkip_seq,
 154         .set_rts_threshold      = rt2800_set_rts_threshold,
 155         .sta_add                = rt2x00mac_sta_add,
 156         .sta_remove             = rt2x00mac_sta_remove,
 157         .bss_info_changed       = rt2x00mac_bss_info_changed,
 158         .conf_tx                = rt2800_conf_tx,
 159         .get_tsf                = rt2800_get_tsf,
 160         .rfkill_poll            = rt2x00mac_rfkill_poll,
 161         .ampdu_action           = rt2800_ampdu_action,
 162         .flush                  = rt2x00mac_flush,
 163         .get_survey             = rt2800_get_survey,
 164         .get_ringparam          = rt2x00mac_get_ringparam,
 165         .tx_frames_pending      = rt2x00mac_tx_frames_pending,
 166 };
 167
 168 static const struct rt2800_ops rt2800soc_rt2800_ops = {
 169         .register_read          = rt2x00mmio_register_read,
 170         .register_read_lock     = rt2x00mmio_register_read, /* same for SoCs */
 171         .register_write         = rt2x00mmio_register_write,
 172         .register_write_lock    = rt2x00mmio_register_write, /* same for SoCs */
 173         .register_multiread     = rt2x00mmio_register_multiread,
 174         .register_multiwrite    = rt2x00mmio_register_multiwrite,
 175         .regbusy_read           = rt2x00mmio_regbusy_read,
 176         .read_eeprom            = rt2800soc_read_eeprom,
 177         .hwcrypt_disabled       = rt2800soc_hwcrypt_disabled,
 178         .drv_write_firmware     = rt2800soc_write_firmware,
 179         .drv_init_registers     = rt2800mmio_init_registers,
 180         .drv_get_txwi           = rt2800mmio_get_txwi,
 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               = rt2800_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         .start_queue            = rt2800mmio_start_queue,
 206         .kick_queue             = rt2800mmio_kick_queue,
 207         .stop_queue             = rt2800mmio_stop_queue,
 208         .flush_queue            = rt2x00mmio_flush_queue,
 209         .write_tx_desc          = rt2800mmio_write_tx_desc,
 210         .write_tx_data          = rt2800_write_tx_data,
 211         .write_beacon           = rt2800_write_beacon,
 212         .clear_beacon           = rt2800_clear_beacon,
 213         .fill_rxdone            = rt2800mmio_fill_rxdone,
 214         .config_shared_key      = rt2800_config_shared_key,
 215         .config_pairwise_key    = rt2800_config_pairwise_key,
 216         .config_filter          = rt2800_config_filter,
 217         .config_intf            = rt2800_config_intf,
 218         .config_erp             = rt2800_config_erp,
 219         .config_ant             = rt2800_config_ant,
 220         .config                 = rt2800_config,
 221         .sta_add                = rt2800_sta_add,
 222         .sta_remove             = rt2800_sta_remove,
 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                 .owner          = THIS_MODULE,
 250                 .mod_name       = KBUILD_MODNAME,
 251         },
 252         .probe          = rt2800soc_probe,
 253         .remove         = rt2x00soc_remove,
 254         .suspend        = rt2x00soc_suspend,
 255         .resume         = rt2x00soc_resume,
 256 };
 257
 258 module_platform_driver(rt2800soc_driver);
 259
 260 MODULE_AUTHOR(DRV_PROJECT);
 261 MODULE_VERSION(DRV_VERSION);
 262 MODULE_DESCRIPTION("Ralink WiSoC Wireless LAN driver.");
 263 MODULE_LICENSE("GPL");