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linuxdebug/drivers/net/wireless/ralink/rt2x00/rt2800pci.c

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// SPDX-License-Identifier: GPL-2.0-or-later
/*
Copyright (C) 2009 - 2010 Ivo van Doorn <IvDoorn@gmail.com>
Copyright (C) 2009 Alban Browaeys <prahal@yahoo.com>
Copyright (C) 2009 Felix Fietkau <nbd@openwrt.org>
Copyright (C) 2009 Luis Correia <luis.f.correia@gmail.com>
Copyright (C) 2009 Mattias Nissler <mattias.nissler@gmx.de>
Copyright (C) 2009 Mark Asselstine <asselsm@gmail.com>
Copyright (C) 2009 Xose Vazquez Perez <xose.vazquez@gmail.com>
Copyright (C) 2009 Bart Zolnierkiewicz <bzolnier@gmail.com>
<http://rt2x00.serialmonkey.com>
*/
/*
Module: rt2800pci
Abstract: rt2800pci device specific routines.
Supported chipsets: RT2800E & RT2800ED.
*/
#include <linux/delay.h>
#include <linux/etherdevice.h>
#include <linux/init.h>
#include <linux/kernel.h>
#include <linux/module.h>
#include <linux/pci.h>
#include <linux/eeprom_93cx6.h>
#include "rt2x00.h"
#include "rt2x00mmio.h"
#include "rt2x00pci.h"
#include "rt2800lib.h"
#include "rt2800mmio.h"
#include "rt2800.h"
#include "rt2800pci.h"
/*
* Allow hardware encryption to be disabled.
*/
static bool modparam_nohwcrypt = false;
module_param_named(nohwcrypt, modparam_nohwcrypt, bool, 0444);
MODULE_PARM_DESC(nohwcrypt, "Disable hardware encryption.");
static bool rt2800pci_hwcrypt_disabled(struct rt2x00_dev *rt2x00dev)
{
return modparam_nohwcrypt;
}
static void rt2800pci_mcu_status(struct rt2x00_dev *rt2x00dev, const u8 token)
{
unsigned int i;
u32 reg;
/*
* SOC devices don't support MCU requests.
*/
if (rt2x00_is_soc(rt2x00dev))
return;
for (i = 0; i < 200; i++) {
reg = rt2x00mmio_register_read(rt2x00dev, H2M_MAILBOX_CID);
if ((rt2x00_get_field32(reg, H2M_MAILBOX_CID_CMD0) == token) ||
(rt2x00_get_field32(reg, H2M_MAILBOX_CID_CMD1) == token) ||
(rt2x00_get_field32(reg, H2M_MAILBOX_CID_CMD2) == token) ||
(rt2x00_get_field32(reg, H2M_MAILBOX_CID_CMD3) == token))
break;
udelay(REGISTER_BUSY_DELAY);
}
if (i == 200)
rt2x00_err(rt2x00dev, "MCU request failed, no response from hardware\n");
rt2x00mmio_register_write(rt2x00dev, H2M_MAILBOX_STATUS, ~0);
rt2x00mmio_register_write(rt2x00dev, H2M_MAILBOX_CID, ~0);
}
static void rt2800pci_eepromregister_read(struct eeprom_93cx6 *eeprom)
{
struct rt2x00_dev *rt2x00dev = eeprom->data;
u32 reg;
reg = rt2x00mmio_register_read(rt2x00dev, E2PROM_CSR);
eeprom->reg_data_in = !!rt2x00_get_field32(reg, E2PROM_CSR_DATA_IN);
eeprom->reg_data_out = !!rt2x00_get_field32(reg, E2PROM_CSR_DATA_OUT);
eeprom->reg_data_clock =
!!rt2x00_get_field32(reg, E2PROM_CSR_DATA_CLOCK);
eeprom->reg_chip_select =
!!rt2x00_get_field32(reg, E2PROM_CSR_CHIP_SELECT);
}
static void rt2800pci_eepromregister_write(struct eeprom_93cx6 *eeprom)
{
struct rt2x00_dev *rt2x00dev = eeprom->data;
u32 reg = 0;
rt2x00_set_field32(&reg, E2PROM_CSR_DATA_IN, !!eeprom->reg_data_in);
rt2x00_set_field32(&reg, E2PROM_CSR_DATA_OUT, !!eeprom->reg_data_out);
rt2x00_set_field32(&reg, E2PROM_CSR_DATA_CLOCK,
!!eeprom->reg_data_clock);
rt2x00_set_field32(&reg, E2PROM_CSR_CHIP_SELECT,
!!eeprom->reg_chip_select);
rt2x00mmio_register_write(rt2x00dev, E2PROM_CSR, reg);
}
static int rt2800pci_read_eeprom_pci(struct rt2x00_dev *rt2x00dev)
{
struct eeprom_93cx6 eeprom;
u32 reg;
reg = rt2x00mmio_register_read(rt2x00dev, E2PROM_CSR);
eeprom.data = rt2x00dev;
eeprom.register_read = rt2800pci_eepromregister_read;
eeprom.register_write = rt2800pci_eepromregister_write;
switch (rt2x00_get_field32(reg, E2PROM_CSR_TYPE))
{
case 0:
eeprom.width = PCI_EEPROM_WIDTH_93C46;
break;
case 1:
eeprom.width = PCI_EEPROM_WIDTH_93C66;
break;
default:
eeprom.width = PCI_EEPROM_WIDTH_93C86;
break;
}
eeprom.reg_data_in = 0;
eeprom.reg_data_out = 0;
eeprom.reg_data_clock = 0;
eeprom.reg_chip_select = 0;
eeprom_93cx6_multiread(&eeprom, EEPROM_BASE, rt2x00dev->eeprom,
EEPROM_SIZE / sizeof(u16));
return 0;
}
static int rt2800pci_efuse_detect(struct rt2x00_dev *rt2x00dev)
{
return rt2800_efuse_detect(rt2x00dev);
}
static inline int rt2800pci_read_eeprom_efuse(struct rt2x00_dev *rt2x00dev)
{
return rt2800_read_eeprom_efuse(rt2x00dev);
}
/*
* Firmware functions
*/
static char *rt2800pci_get_firmware_name(struct rt2x00_dev *rt2x00dev)
{
/*
* Chip rt3290 use specific 4KB firmware named rt3290.bin.
*/
if (rt2x00_rt(rt2x00dev, RT3290))
return FIRMWARE_RT3290;
else
return FIRMWARE_RT2860;
}
static int rt2800pci_write_firmware(struct rt2x00_dev *rt2x00dev,
const u8 *data, const size_t len)
{
u32 reg;
/*
* enable Host program ram write selection
*/
reg = 0;
rt2x00_set_field32(&reg, PBF_SYS_CTRL_HOST_RAM_WRITE, 1);
rt2x00mmio_register_write(rt2x00dev, PBF_SYS_CTRL, reg);
/*
* Write firmware to device.
*/
rt2x00mmio_register_multiwrite(rt2x00dev, FIRMWARE_IMAGE_BASE,
data, len);
rt2x00mmio_register_write(rt2x00dev, PBF_SYS_CTRL, 0x00000);
rt2x00mmio_register_write(rt2x00dev, PBF_SYS_CTRL, 0x00001);
rt2x00mmio_register_write(rt2x00dev, H2M_BBP_AGENT, 0);
rt2x00mmio_register_write(rt2x00dev, H2M_MAILBOX_CSR, 0);
return 0;
}
/*
* Device state switch handlers.
*/
static int rt2800pci_enable_radio(struct rt2x00_dev *rt2x00dev)
{
int retval;
retval = rt2800mmio_enable_radio(rt2x00dev);
if (retval)
return retval;
/* After resume MCU_BOOT_SIGNAL will trash these. */
rt2x00mmio_register_write(rt2x00dev, H2M_MAILBOX_STATUS, ~0);
rt2x00mmio_register_write(rt2x00dev, H2M_MAILBOX_CID, ~0);
rt2800_mcu_request(rt2x00dev, MCU_SLEEP, TOKEN_RADIO_OFF, 0xff, 0x02);
rt2800pci_mcu_status(rt2x00dev, TOKEN_RADIO_OFF);
rt2800_mcu_request(rt2x00dev, MCU_WAKEUP, TOKEN_WAKEUP, 0, 0);
rt2800pci_mcu_status(rt2x00dev, TOKEN_WAKEUP);
return retval;
}
static int rt2800pci_set_state(struct rt2x00_dev *rt2x00dev,
enum dev_state state)
{
if (state == STATE_AWAKE) {
rt2800_mcu_request(rt2x00dev, MCU_WAKEUP, TOKEN_WAKEUP,
0, 0x02);
rt2800pci_mcu_status(rt2x00dev, TOKEN_WAKEUP);
} else if (state == STATE_SLEEP) {
rt2x00mmio_register_write(rt2x00dev, H2M_MAILBOX_STATUS,
0xffffffff);
rt2x00mmio_register_write(rt2x00dev, H2M_MAILBOX_CID,
0xffffffff);
rt2800_mcu_request(rt2x00dev, MCU_SLEEP, TOKEN_SLEEP,
0xff, 0x01);
}
return 0;
}
static int rt2800pci_set_device_state(struct rt2x00_dev *rt2x00dev,
enum dev_state state)
{
int retval = 0;
switch (state) {
case STATE_RADIO_ON:
retval = rt2800pci_enable_radio(rt2x00dev);
break;
case STATE_RADIO_OFF:
/*
* After the radio has been disabled, the device should
* be put to sleep for powersaving.
*/
rt2800pci_set_state(rt2x00dev, STATE_SLEEP);
break;
case STATE_RADIO_IRQ_ON:
case STATE_RADIO_IRQ_OFF:
rt2800mmio_toggle_irq(rt2x00dev, state);
break;
case STATE_DEEP_SLEEP:
case STATE_SLEEP:
case STATE_STANDBY:
case STATE_AWAKE:
retval = rt2800pci_set_state(rt2x00dev, state);
break;
default:
retval = -ENOTSUPP;
break;
}
if (unlikely(retval))
rt2x00_err(rt2x00dev, "Device failed to enter state %d (%d)\n",
state, retval);
return retval;
}
/*
* Device probe functions.
*/
static int rt2800pci_read_eeprom(struct rt2x00_dev *rt2x00dev)
{
int retval;
if (rt2800pci_efuse_detect(rt2x00dev))
retval = rt2800pci_read_eeprom_efuse(rt2x00dev);
else
retval = rt2800pci_read_eeprom_pci(rt2x00dev);
return retval;
}
static const struct ieee80211_ops rt2800pci_mac80211_ops = {
.tx = rt2x00mac_tx,
.start = rt2x00mac_start,
.stop = rt2x00mac_stop,
.add_interface = rt2x00mac_add_interface,
.remove_interface = rt2x00mac_remove_interface,
.config = rt2x00mac_config,
.configure_filter = rt2x00mac_configure_filter,
.set_key = rt2x00mac_set_key,
.sw_scan_start = rt2x00mac_sw_scan_start,
.sw_scan_complete = rt2x00mac_sw_scan_complete,
.get_stats = rt2x00mac_get_stats,
.get_key_seq = rt2800_get_key_seq,
.set_rts_threshold = rt2800_set_rts_threshold,
.sta_add = rt2800_sta_add,
.sta_remove = rt2800_sta_remove,
.bss_info_changed = rt2x00mac_bss_info_changed,
.conf_tx = rt2800_conf_tx,
.get_tsf = rt2800_get_tsf,
.rfkill_poll = rt2x00mac_rfkill_poll,
.ampdu_action = rt2800_ampdu_action,
.flush = rt2x00mac_flush,
.get_survey = rt2800_get_survey,
.get_ringparam = rt2x00mac_get_ringparam,
.tx_frames_pending = rt2x00mac_tx_frames_pending,
.reconfig_complete = rt2x00mac_reconfig_complete,
};
static const struct rt2800_ops rt2800pci_rt2800_ops = {
.register_read = rt2x00mmio_register_read,
.register_read_lock = rt2x00mmio_register_read, /* same for PCI */
.register_write = rt2x00mmio_register_write,
.register_write_lock = rt2x00mmio_register_write, /* same for PCI */
.register_multiread = rt2x00mmio_register_multiread,
.register_multiwrite = rt2x00mmio_register_multiwrite,
.regbusy_read = rt2x00mmio_regbusy_read,
.read_eeprom = rt2800pci_read_eeprom,
.hwcrypt_disabled = rt2800pci_hwcrypt_disabled,
.drv_write_firmware = rt2800pci_write_firmware,
.drv_init_registers = rt2800mmio_init_registers,
.drv_get_txwi = rt2800mmio_get_txwi,
.drv_get_dma_done = rt2800mmio_get_dma_done,
};
static const struct rt2x00lib_ops rt2800pci_rt2x00_ops = {
.irq_handler = rt2800mmio_interrupt,
.txstatus_tasklet = rt2800mmio_txstatus_tasklet,
.pretbtt_tasklet = rt2800mmio_pretbtt_tasklet,
.tbtt_tasklet = rt2800mmio_tbtt_tasklet,
.rxdone_tasklet = rt2800mmio_rxdone_tasklet,
.autowake_tasklet = rt2800mmio_autowake_tasklet,
.probe_hw = rt2800mmio_probe_hw,
.get_firmware_name = rt2800pci_get_firmware_name,
.check_firmware = rt2800_check_firmware,
.load_firmware = rt2800_load_firmware,
.initialize = rt2x00mmio_initialize,
.uninitialize = rt2x00mmio_uninitialize,
.get_entry_state = rt2800mmio_get_entry_state,
.clear_entry = rt2800mmio_clear_entry,
.set_device_state = rt2800pci_set_device_state,
.rfkill_poll = rt2800_rfkill_poll,
.link_stats = rt2800_link_stats,
.reset_tuner = rt2800_reset_tuner,
.link_tuner = rt2800_link_tuner,
.gain_calibration = rt2800_gain_calibration,
.vco_calibration = rt2800_vco_calibration,
.watchdog = rt2800_watchdog,
.start_queue = rt2800mmio_start_queue,
.kick_queue = rt2800mmio_kick_queue,
.stop_queue = rt2800mmio_stop_queue,
.flush_queue = rt2800mmio_flush_queue,
.write_tx_desc = rt2800mmio_write_tx_desc,
.write_tx_data = rt2800_write_tx_data,
.write_beacon = rt2800_write_beacon,
.clear_beacon = rt2800_clear_beacon,
.fill_rxdone = rt2800mmio_fill_rxdone,
.config_shared_key = rt2800_config_shared_key,
.config_pairwise_key = rt2800_config_pairwise_key,
.config_filter = rt2800_config_filter,
.config_intf = rt2800_config_intf,
.config_erp = rt2800_config_erp,
.config_ant = rt2800_config_ant,
.config = rt2800_config,
.pre_reset_hw = rt2800_pre_reset_hw,
};
static const struct rt2x00_ops rt2800pci_ops = {
.name = KBUILD_MODNAME,
.drv_data_size = sizeof(struct rt2800_drv_data),
.max_ap_intf = 8,
.eeprom_size = EEPROM_SIZE,
.rf_size = RF_SIZE,
.tx_queues = NUM_TX_QUEUES,
.queue_init = rt2800mmio_queue_init,
.lib = &rt2800pci_rt2x00_ops,
.drv = &rt2800pci_rt2800_ops,
.hw = &rt2800pci_mac80211_ops,
#ifdef CONFIG_RT2X00_LIB_DEBUGFS
.debugfs = &rt2800_rt2x00debug,
#endif /* CONFIG_RT2X00_LIB_DEBUGFS */
};
/*
* RT2800pci module information.
*/
static const struct pci_device_id rt2800pci_device_table[] = {
{ PCI_DEVICE(0x1814, 0x0601) },
{ PCI_DEVICE(0x1814, 0x0681) },
{ PCI_DEVICE(0x1814, 0x0701) },
{ PCI_DEVICE(0x1814, 0x0781) },
{ PCI_DEVICE(0x1814, 0x3090) },
{ PCI_DEVICE(0x1814, 0x3091) },
{ PCI_DEVICE(0x1814, 0x3092) },
{ PCI_DEVICE(0x1432, 0x7708) },
{ PCI_DEVICE(0x1432, 0x7727) },
{ PCI_DEVICE(0x1432, 0x7728) },
{ PCI_DEVICE(0x1432, 0x7738) },
{ PCI_DEVICE(0x1432, 0x7748) },
{ PCI_DEVICE(0x1432, 0x7758) },
{ PCI_DEVICE(0x1432, 0x7768) },
{ PCI_DEVICE(0x1462, 0x891a) },
{ PCI_DEVICE(0x1a3b, 0x1059) },
#ifdef CONFIG_RT2800PCI_RT3290
{ PCI_DEVICE(0x1814, 0x3290) },
#endif
#ifdef CONFIG_RT2800PCI_RT33XX
{ PCI_DEVICE(0x1814, 0x3390) },
#endif
#ifdef CONFIG_RT2800PCI_RT35XX
{ PCI_DEVICE(0x1432, 0x7711) },
{ PCI_DEVICE(0x1432, 0x7722) },
{ PCI_DEVICE(0x1814, 0x3060) },
{ PCI_DEVICE(0x1814, 0x3062) },
{ PCI_DEVICE(0x1814, 0x3562) },
{ PCI_DEVICE(0x1814, 0x3592) },
{ PCI_DEVICE(0x1814, 0x3593) },
{ PCI_DEVICE(0x1814, 0x359f) },
#endif
#ifdef CONFIG_RT2800PCI_RT53XX
{ PCI_DEVICE(0x1814, 0x5360) },
{ PCI_DEVICE(0x1814, 0x5362) },
{ PCI_DEVICE(0x1814, 0x5390) },
{ PCI_DEVICE(0x1814, 0x5392) },
{ PCI_DEVICE(0x1814, 0x539a) },
{ PCI_DEVICE(0x1814, 0x539b) },
{ PCI_DEVICE(0x1814, 0x539f) },
#endif
{ 0, }
};
MODULE_AUTHOR(DRV_PROJECT);
MODULE_VERSION(DRV_VERSION);
MODULE_DESCRIPTION("Ralink RT2800 PCI & PCMCIA Wireless LAN driver.");
MODULE_FIRMWARE(FIRMWARE_RT2860);
MODULE_DEVICE_TABLE(pci, rt2800pci_device_table);
MODULE_LICENSE("GPL");
static int rt2800pci_probe(struct pci_dev *pci_dev,
const struct pci_device_id *id)
{
return rt2x00pci_probe(pci_dev, &rt2800pci_ops);
}
static struct pci_driver rt2800pci_driver = {
.name = KBUILD_MODNAME,
.id_table = rt2800pci_device_table,
.probe = rt2800pci_probe,
.remove = rt2x00pci_remove,
.driver.pm = &rt2x00pci_pm_ops,
};
module_pci_driver(rt2800pci_driver);
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