e5ceab9df4
Sometimes we can get into situation when there are pending statuses, but we do not get INT_SOURCE_CSR_TX_FIFO_STATUS. Handle this situation by arming timeout timer and read statuses (it will fix case when we just do not have irq) and queue work to handle case we missed statues from hardware FIFO. Signed-off-by: Stanislaw Gruszka <sgruszka@redhat.com> Signed-off-by: Kalle Valo <kvalo@codeaurora.org>
259 lines
7.7 KiB
C
259 lines
7.7 KiB
C
/* Copyright (C) 2009 - 2010 Ivo van Doorn <IvDoorn@gmail.com>
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* Copyright (C) 2009 Alban Browaeys <prahal@yahoo.com>
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* Copyright (C) 2009 Felix Fietkau <nbd@openwrt.org>
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* Copyright (C) 2009 Luis Correia <luis.f.correia@gmail.com>
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* Copyright (C) 2009 Mattias Nissler <mattias.nissler@gmx.de>
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* Copyright (C) 2009 Mark Asselstine <asselsm@gmail.com>
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* Copyright (C) 2009 Xose Vazquez Perez <xose.vazquez@gmail.com>
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* Copyright (C) 2009 Bart Zolnierkiewicz <bzolnier@gmail.com>
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* <http://rt2x00.serialmonkey.com>
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*
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* This program is free software; you can redistribute it and/or modify
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* it under the terms of the GNU General Public License as published by
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* the Free Software Foundation; either version 2 of the License, or
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* (at your option) any later version.
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*
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* This program is distributed in the hope that it will be useful,
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* but WITHOUT ANY WARRANTY; without even the implied warranty of
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* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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* GNU General Public License for more details.
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*
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* You should have received a copy of the GNU General Public License
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* along with this program; if not, see <http://www.gnu.org/licenses/>.
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*/
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/* Module: rt2800soc
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* Abstract: rt2800 WiSoC specific routines.
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*/
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#include <linux/etherdevice.h>
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#include <linux/init.h>
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#include <linux/kernel.h>
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#include <linux/module.h>
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#include <linux/platform_device.h>
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#include "rt2x00.h"
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#include "rt2x00mmio.h"
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#include "rt2x00soc.h"
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#include "rt2800.h"
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#include "rt2800lib.h"
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#include "rt2800mmio.h"
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/* Allow hardware encryption to be disabled. */
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static bool modparam_nohwcrypt;
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module_param_named(nohwcrypt, modparam_nohwcrypt, bool, 0444);
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MODULE_PARM_DESC(nohwcrypt, "Disable hardware encryption.");
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static bool rt2800soc_hwcrypt_disabled(struct rt2x00_dev *rt2x00dev)
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{
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return modparam_nohwcrypt;
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}
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static void rt2800soc_disable_radio(struct rt2x00_dev *rt2x00dev)
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{
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rt2800_disable_radio(rt2x00dev);
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rt2x00mmio_register_write(rt2x00dev, PWR_PIN_CFG, 0);
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rt2x00mmio_register_write(rt2x00dev, TX_PIN_CFG, 0);
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}
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static int rt2800soc_set_device_state(struct rt2x00_dev *rt2x00dev,
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enum dev_state state)
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{
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int retval = 0;
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switch (state) {
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case STATE_RADIO_ON:
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retval = rt2800mmio_enable_radio(rt2x00dev);
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break;
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case STATE_RADIO_OFF:
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rt2800soc_disable_radio(rt2x00dev);
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break;
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case STATE_RADIO_IRQ_ON:
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case STATE_RADIO_IRQ_OFF:
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rt2800mmio_toggle_irq(rt2x00dev, state);
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break;
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case STATE_DEEP_SLEEP:
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case STATE_SLEEP:
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case STATE_STANDBY:
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case STATE_AWAKE:
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/* These states are not supported, but don't report an error */
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retval = 0;
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break;
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default:
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retval = -ENOTSUPP;
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break;
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}
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if (unlikely(retval))
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rt2x00_err(rt2x00dev, "Device failed to enter state %d (%d)\n",
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state, retval);
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return retval;
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}
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static int rt2800soc_read_eeprom(struct rt2x00_dev *rt2x00dev)
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{
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void __iomem *base_addr = ioremap(0x1F040000, EEPROM_SIZE);
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if (!base_addr)
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return -ENOMEM;
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memcpy_fromio(rt2x00dev->eeprom, base_addr, EEPROM_SIZE);
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iounmap(base_addr);
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return 0;
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}
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/* Firmware functions */
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static char *rt2800soc_get_firmware_name(struct rt2x00_dev *rt2x00dev)
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{
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WARN_ON_ONCE(1);
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return NULL;
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}
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static int rt2800soc_load_firmware(struct rt2x00_dev *rt2x00dev,
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const u8 *data, const size_t len)
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{
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WARN_ON_ONCE(1);
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return 0;
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}
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static int rt2800soc_check_firmware(struct rt2x00_dev *rt2x00dev,
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const u8 *data, const size_t len)
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{
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WARN_ON_ONCE(1);
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return 0;
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}
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static int rt2800soc_write_firmware(struct rt2x00_dev *rt2x00dev,
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const u8 *data, const size_t len)
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{
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WARN_ON_ONCE(1);
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return 0;
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}
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static const struct ieee80211_ops rt2800soc_mac80211_ops = {
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.tx = rt2x00mac_tx,
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.start = rt2x00mac_start,
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.stop = rt2x00mac_stop,
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.add_interface = rt2x00mac_add_interface,
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.remove_interface = rt2x00mac_remove_interface,
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.config = rt2x00mac_config,
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.configure_filter = rt2x00mac_configure_filter,
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.set_key = rt2x00mac_set_key,
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.sw_scan_start = rt2x00mac_sw_scan_start,
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.sw_scan_complete = rt2x00mac_sw_scan_complete,
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.get_stats = rt2x00mac_get_stats,
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.get_key_seq = rt2800_get_key_seq,
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.set_rts_threshold = rt2800_set_rts_threshold,
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.sta_add = rt2800_sta_add,
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.sta_remove = rt2800_sta_remove,
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.bss_info_changed = rt2x00mac_bss_info_changed,
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.conf_tx = rt2800_conf_tx,
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.get_tsf = rt2800_get_tsf,
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.rfkill_poll = rt2x00mac_rfkill_poll,
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.ampdu_action = rt2800_ampdu_action,
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.flush = rt2x00mac_flush,
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.get_survey = rt2800_get_survey,
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.get_ringparam = rt2x00mac_get_ringparam,
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.tx_frames_pending = rt2x00mac_tx_frames_pending,
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};
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static const struct rt2800_ops rt2800soc_rt2800_ops = {
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.register_read = rt2x00mmio_register_read,
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.register_read_lock = rt2x00mmio_register_read, /* same for SoCs */
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.register_write = rt2x00mmio_register_write,
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.register_write_lock = rt2x00mmio_register_write, /* same for SoCs */
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.register_multiread = rt2x00mmio_register_multiread,
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.register_multiwrite = rt2x00mmio_register_multiwrite,
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.regbusy_read = rt2x00mmio_regbusy_read,
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.read_eeprom = rt2800soc_read_eeprom,
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.hwcrypt_disabled = rt2800soc_hwcrypt_disabled,
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.drv_write_firmware = rt2800soc_write_firmware,
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.drv_init_registers = rt2800mmio_init_registers,
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.drv_get_txwi = rt2800mmio_get_txwi,
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};
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static const struct rt2x00lib_ops rt2800soc_rt2x00_ops = {
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.irq_handler = rt2800mmio_interrupt,
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.txstatus_tasklet = rt2800mmio_txstatus_tasklet,
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.pretbtt_tasklet = rt2800mmio_pretbtt_tasklet,
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.tbtt_tasklet = rt2800mmio_tbtt_tasklet,
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.rxdone_tasklet = rt2800mmio_rxdone_tasklet,
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.autowake_tasklet = rt2800mmio_autowake_tasklet,
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.probe_hw = rt2800mmio_probe_hw,
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.get_firmware_name = rt2800soc_get_firmware_name,
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.check_firmware = rt2800soc_check_firmware,
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.load_firmware = rt2800soc_load_firmware,
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.initialize = rt2x00mmio_initialize,
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.uninitialize = rt2x00mmio_uninitialize,
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.get_entry_state = rt2800mmio_get_entry_state,
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.clear_entry = rt2800mmio_clear_entry,
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.set_device_state = rt2800soc_set_device_state,
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.rfkill_poll = rt2800_rfkill_poll,
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.link_stats = rt2800_link_stats,
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.reset_tuner = rt2800_reset_tuner,
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.link_tuner = rt2800_link_tuner,
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.gain_calibration = rt2800_gain_calibration,
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.vco_calibration = rt2800_vco_calibration,
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.start_queue = rt2800mmio_start_queue,
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.kick_queue = rt2800mmio_kick_queue,
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.stop_queue = rt2800mmio_stop_queue,
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.flush_queue = rt2800mmio_flush_queue,
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.write_tx_desc = rt2800mmio_write_tx_desc,
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.write_tx_data = rt2800_write_tx_data,
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.write_beacon = rt2800_write_beacon,
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.clear_beacon = rt2800_clear_beacon,
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.fill_rxdone = rt2800mmio_fill_rxdone,
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.config_shared_key = rt2800_config_shared_key,
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.config_pairwise_key = rt2800_config_pairwise_key,
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.config_filter = rt2800_config_filter,
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.config_intf = rt2800_config_intf,
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.config_erp = rt2800_config_erp,
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.config_ant = rt2800_config_ant,
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.config = rt2800_config,
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};
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static const struct rt2x00_ops rt2800soc_ops = {
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.name = KBUILD_MODNAME,
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.drv_data_size = sizeof(struct rt2800_drv_data),
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.max_ap_intf = 8,
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.eeprom_size = EEPROM_SIZE,
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.rf_size = RF_SIZE,
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.tx_queues = NUM_TX_QUEUES,
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.queue_init = rt2800mmio_queue_init,
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.lib = &rt2800soc_rt2x00_ops,
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.drv = &rt2800soc_rt2800_ops,
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.hw = &rt2800soc_mac80211_ops,
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#ifdef CONFIG_RT2X00_LIB_DEBUGFS
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.debugfs = &rt2800_rt2x00debug,
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#endif /* CONFIG_RT2X00_LIB_DEBUGFS */
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};
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static int rt2800soc_probe(struct platform_device *pdev)
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{
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return rt2x00soc_probe(pdev, &rt2800soc_ops);
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}
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static struct platform_driver rt2800soc_driver = {
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.driver = {
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.name = "rt2800_wmac",
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.mod_name = KBUILD_MODNAME,
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},
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.probe = rt2800soc_probe,
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.remove = rt2x00soc_remove,
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.suspend = rt2x00soc_suspend,
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.resume = rt2x00soc_resume,
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};
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module_platform_driver(rt2800soc_driver);
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MODULE_AUTHOR(DRV_PROJECT);
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MODULE_VERSION(DRV_VERSION);
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MODULE_DESCRIPTION("Ralink WiSoC Wireless LAN driver.");
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MODULE_LICENSE("GPL");
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