linux/drivers/net/wireless/rt2x00/rt2800soc.c
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   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. */
  43static bool modparam_nohwcrypt;
  44module_param_named(nohwcrypt, modparam_nohwcrypt, bool, S_IRUGO);
  45MODULE_PARM_DESC(nohwcrypt, "Disable hardware encryption.");
  46
  47static bool rt2800soc_hwcrypt_disabled(struct rt2x00_dev *rt2x00dev)
  48{
  49        return modparam_nohwcrypt;
  50}
  51
  52static 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
  59static 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
  98static 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 */
 112static char *rt2800soc_get_firmware_name(struct rt2x00_dev *rt2x00dev)
 113{
 114        WARN_ON_ONCE(1);
 115        return NULL;
 116}
 117
 118static 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
 125static 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
 132static 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
 139static 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
 166static 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
 181static 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
 223static 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
 239static int rt2800soc_probe(struct platform_device *pdev)
 240{
 241        return rt2x00soc_probe(pdev, &rt2800soc_ops);
 242}
 243
 244static 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
 256module_platform_driver(rt2800soc_driver);
 257
 258MODULE_AUTHOR(DRV_PROJECT);
 259MODULE_VERSION(DRV_VERSION);
 260MODULE_DESCRIPTION("Ralink WiSoC Wireless LAN driver.");
 261MODULE_LICENSE("GPL");
 262
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