mirror of
https://github.com/torvalds/linux.git
synced 2024-12-14 23:25:54 +00:00
6cccccafe9
This reverts commit 23085d5796.
The original patch was a misguided attempt to improve performance on
some hardware that is apparently prone to spurious interrupt generation.
Signed-off-by: John W. Linville <linville@tuxdriver.com>
1843 lines
53 KiB
C
1843 lines
53 KiB
C
/*
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Copyright (C) 2004 - 2009 Ivo van Doorn <IvDoorn@gmail.com>
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<http://rt2x00.serialmonkey.com>
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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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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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You should have received a copy of the GNU General Public License
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along with this program; if not, write to the
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Free Software Foundation, Inc.,
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59 Temple Place - Suite 330, Boston, MA 02111-1307, USA.
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*/
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/*
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Module: rt2400pci
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Abstract: rt2400pci device specific routines.
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Supported chipsets: RT2460.
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*/
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#include <linux/delay.h>
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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/pci.h>
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#include <linux/eeprom_93cx6.h>
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#include <linux/slab.h>
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#include "rt2x00.h"
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#include "rt2x00pci.h"
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#include "rt2400pci.h"
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/*
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* Register access.
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* All access to the CSR registers will go through the methods
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* rt2x00pci_register_read and rt2x00pci_register_write.
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* BBP and RF register require indirect register access,
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* and use the CSR registers BBPCSR and RFCSR to achieve this.
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* These indirect registers work with busy bits,
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* and we will try maximal REGISTER_BUSY_COUNT times to access
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* the register while taking a REGISTER_BUSY_DELAY us delay
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* between each attempt. When the busy bit is still set at that time,
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* the access attempt is considered to have failed,
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* and we will print an error.
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*/
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#define WAIT_FOR_BBP(__dev, __reg) \
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rt2x00pci_regbusy_read((__dev), BBPCSR, BBPCSR_BUSY, (__reg))
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#define WAIT_FOR_RF(__dev, __reg) \
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rt2x00pci_regbusy_read((__dev), RFCSR, RFCSR_BUSY, (__reg))
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static void rt2400pci_bbp_write(struct rt2x00_dev *rt2x00dev,
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const unsigned int word, const u8 value)
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{
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u32 reg;
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mutex_lock(&rt2x00dev->csr_mutex);
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/*
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* Wait until the BBP becomes available, afterwards we
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* can safely write the new data into the register.
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*/
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if (WAIT_FOR_BBP(rt2x00dev, ®)) {
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reg = 0;
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rt2x00_set_field32(®, BBPCSR_VALUE, value);
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rt2x00_set_field32(®, BBPCSR_REGNUM, word);
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rt2x00_set_field32(®, BBPCSR_BUSY, 1);
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rt2x00_set_field32(®, BBPCSR_WRITE_CONTROL, 1);
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rt2x00pci_register_write(rt2x00dev, BBPCSR, reg);
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}
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mutex_unlock(&rt2x00dev->csr_mutex);
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}
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static void rt2400pci_bbp_read(struct rt2x00_dev *rt2x00dev,
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const unsigned int word, u8 *value)
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{
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u32 reg;
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mutex_lock(&rt2x00dev->csr_mutex);
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/*
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* Wait until the BBP becomes available, afterwards we
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* can safely write the read request into the register.
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* After the data has been written, we wait until hardware
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* returns the correct value, if at any time the register
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* doesn't become available in time, reg will be 0xffffffff
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* which means we return 0xff to the caller.
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*/
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if (WAIT_FOR_BBP(rt2x00dev, ®)) {
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reg = 0;
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rt2x00_set_field32(®, BBPCSR_REGNUM, word);
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rt2x00_set_field32(®, BBPCSR_BUSY, 1);
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rt2x00_set_field32(®, BBPCSR_WRITE_CONTROL, 0);
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rt2x00pci_register_write(rt2x00dev, BBPCSR, reg);
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WAIT_FOR_BBP(rt2x00dev, ®);
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}
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*value = rt2x00_get_field32(reg, BBPCSR_VALUE);
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mutex_unlock(&rt2x00dev->csr_mutex);
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}
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static void rt2400pci_rf_write(struct rt2x00_dev *rt2x00dev,
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const unsigned int word, const u32 value)
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{
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u32 reg;
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mutex_lock(&rt2x00dev->csr_mutex);
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/*
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* Wait until the RF becomes available, afterwards we
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* can safely write the new data into the register.
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*/
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if (WAIT_FOR_RF(rt2x00dev, ®)) {
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reg = 0;
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rt2x00_set_field32(®, RFCSR_VALUE, value);
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rt2x00_set_field32(®, RFCSR_NUMBER_OF_BITS, 20);
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rt2x00_set_field32(®, RFCSR_IF_SELECT, 0);
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rt2x00_set_field32(®, RFCSR_BUSY, 1);
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rt2x00pci_register_write(rt2x00dev, RFCSR, reg);
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rt2x00_rf_write(rt2x00dev, word, value);
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}
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mutex_unlock(&rt2x00dev->csr_mutex);
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}
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static void rt2400pci_eepromregister_read(struct eeprom_93cx6 *eeprom)
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{
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struct rt2x00_dev *rt2x00dev = eeprom->data;
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u32 reg;
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rt2x00pci_register_read(rt2x00dev, CSR21, ®);
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eeprom->reg_data_in = !!rt2x00_get_field32(reg, CSR21_EEPROM_DATA_IN);
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eeprom->reg_data_out = !!rt2x00_get_field32(reg, CSR21_EEPROM_DATA_OUT);
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eeprom->reg_data_clock =
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!!rt2x00_get_field32(reg, CSR21_EEPROM_DATA_CLOCK);
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eeprom->reg_chip_select =
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!!rt2x00_get_field32(reg, CSR21_EEPROM_CHIP_SELECT);
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}
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static void rt2400pci_eepromregister_write(struct eeprom_93cx6 *eeprom)
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{
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struct rt2x00_dev *rt2x00dev = eeprom->data;
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u32 reg = 0;
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rt2x00_set_field32(®, CSR21_EEPROM_DATA_IN, !!eeprom->reg_data_in);
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rt2x00_set_field32(®, CSR21_EEPROM_DATA_OUT, !!eeprom->reg_data_out);
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rt2x00_set_field32(®, CSR21_EEPROM_DATA_CLOCK,
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!!eeprom->reg_data_clock);
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rt2x00_set_field32(®, CSR21_EEPROM_CHIP_SELECT,
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!!eeprom->reg_chip_select);
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rt2x00pci_register_write(rt2x00dev, CSR21, reg);
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}
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#ifdef CONFIG_RT2X00_LIB_DEBUGFS
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static const struct rt2x00debug rt2400pci_rt2x00debug = {
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.owner = THIS_MODULE,
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.csr = {
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.read = rt2x00pci_register_read,
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.write = rt2x00pci_register_write,
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.flags = RT2X00DEBUGFS_OFFSET,
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.word_base = CSR_REG_BASE,
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.word_size = sizeof(u32),
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.word_count = CSR_REG_SIZE / sizeof(u32),
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},
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.eeprom = {
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.read = rt2x00_eeprom_read,
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.write = rt2x00_eeprom_write,
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.word_base = EEPROM_BASE,
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.word_size = sizeof(u16),
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.word_count = EEPROM_SIZE / sizeof(u16),
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},
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.bbp = {
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.read = rt2400pci_bbp_read,
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.write = rt2400pci_bbp_write,
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.word_base = BBP_BASE,
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.word_size = sizeof(u8),
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.word_count = BBP_SIZE / sizeof(u8),
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},
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.rf = {
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.read = rt2x00_rf_read,
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.write = rt2400pci_rf_write,
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.word_base = RF_BASE,
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.word_size = sizeof(u32),
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.word_count = RF_SIZE / sizeof(u32),
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},
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};
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#endif /* CONFIG_RT2X00_LIB_DEBUGFS */
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static int rt2400pci_rfkill_poll(struct rt2x00_dev *rt2x00dev)
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{
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u32 reg;
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rt2x00pci_register_read(rt2x00dev, GPIOCSR, ®);
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return rt2x00_get_field32(reg, GPIOCSR_BIT0);
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}
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#ifdef CONFIG_RT2X00_LIB_LEDS
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static void rt2400pci_brightness_set(struct led_classdev *led_cdev,
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enum led_brightness brightness)
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{
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struct rt2x00_led *led =
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container_of(led_cdev, struct rt2x00_led, led_dev);
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unsigned int enabled = brightness != LED_OFF;
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u32 reg;
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rt2x00pci_register_read(led->rt2x00dev, LEDCSR, ®);
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if (led->type == LED_TYPE_RADIO || led->type == LED_TYPE_ASSOC)
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rt2x00_set_field32(®, LEDCSR_LINK, enabled);
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else if (led->type == LED_TYPE_ACTIVITY)
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rt2x00_set_field32(®, LEDCSR_ACTIVITY, enabled);
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rt2x00pci_register_write(led->rt2x00dev, LEDCSR, reg);
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}
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static int rt2400pci_blink_set(struct led_classdev *led_cdev,
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unsigned long *delay_on,
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unsigned long *delay_off)
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{
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struct rt2x00_led *led =
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container_of(led_cdev, struct rt2x00_led, led_dev);
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u32 reg;
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rt2x00pci_register_read(led->rt2x00dev, LEDCSR, ®);
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rt2x00_set_field32(®, LEDCSR_ON_PERIOD, *delay_on);
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rt2x00_set_field32(®, LEDCSR_OFF_PERIOD, *delay_off);
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rt2x00pci_register_write(led->rt2x00dev, LEDCSR, reg);
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return 0;
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}
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static void rt2400pci_init_led(struct rt2x00_dev *rt2x00dev,
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struct rt2x00_led *led,
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enum led_type type)
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{
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led->rt2x00dev = rt2x00dev;
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led->type = type;
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led->led_dev.brightness_set = rt2400pci_brightness_set;
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led->led_dev.blink_set = rt2400pci_blink_set;
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led->flags = LED_INITIALIZED;
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}
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#endif /* CONFIG_RT2X00_LIB_LEDS */
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/*
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* Configuration handlers.
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*/
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static void rt2400pci_config_filter(struct rt2x00_dev *rt2x00dev,
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const unsigned int filter_flags)
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{
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u32 reg;
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/*
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* Start configuration steps.
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* Note that the version error will always be dropped
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* since there is no filter for it at this time.
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*/
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rt2x00pci_register_read(rt2x00dev, RXCSR0, ®);
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rt2x00_set_field32(®, RXCSR0_DROP_CRC,
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!(filter_flags & FIF_FCSFAIL));
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rt2x00_set_field32(®, RXCSR0_DROP_PHYSICAL,
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!(filter_flags & FIF_PLCPFAIL));
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rt2x00_set_field32(®, RXCSR0_DROP_CONTROL,
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!(filter_flags & FIF_CONTROL));
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rt2x00_set_field32(®, RXCSR0_DROP_NOT_TO_ME,
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!(filter_flags & FIF_PROMISC_IN_BSS));
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rt2x00_set_field32(®, RXCSR0_DROP_TODS,
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!(filter_flags & FIF_PROMISC_IN_BSS) &&
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!rt2x00dev->intf_ap_count);
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rt2x00_set_field32(®, RXCSR0_DROP_VERSION_ERROR, 1);
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rt2x00pci_register_write(rt2x00dev, RXCSR0, reg);
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}
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static void rt2400pci_config_intf(struct rt2x00_dev *rt2x00dev,
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struct rt2x00_intf *intf,
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struct rt2x00intf_conf *conf,
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const unsigned int flags)
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{
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unsigned int bcn_preload;
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u32 reg;
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if (flags & CONFIG_UPDATE_TYPE) {
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/*
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* Enable beacon config
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*/
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bcn_preload = PREAMBLE + GET_DURATION(IEEE80211_HEADER, 20);
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rt2x00pci_register_read(rt2x00dev, BCNCSR1, ®);
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rt2x00_set_field32(®, BCNCSR1_PRELOAD, bcn_preload);
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rt2x00pci_register_write(rt2x00dev, BCNCSR1, reg);
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/*
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* Enable synchronisation.
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*/
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rt2x00pci_register_read(rt2x00dev, CSR14, ®);
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rt2x00_set_field32(®, CSR14_TSF_SYNC, conf->sync);
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rt2x00pci_register_write(rt2x00dev, CSR14, reg);
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}
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if (flags & CONFIG_UPDATE_MAC)
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rt2x00pci_register_multiwrite(rt2x00dev, CSR3,
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conf->mac, sizeof(conf->mac));
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if (flags & CONFIG_UPDATE_BSSID)
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rt2x00pci_register_multiwrite(rt2x00dev, CSR5,
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conf->bssid, sizeof(conf->bssid));
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}
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static void rt2400pci_config_erp(struct rt2x00_dev *rt2x00dev,
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struct rt2x00lib_erp *erp,
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u32 changed)
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{
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int preamble_mask;
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u32 reg;
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/*
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* When short preamble is enabled, we should set bit 0x08
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*/
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if (changed & BSS_CHANGED_ERP_PREAMBLE) {
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preamble_mask = erp->short_preamble << 3;
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rt2x00pci_register_read(rt2x00dev, TXCSR1, ®);
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rt2x00_set_field32(®, TXCSR1_ACK_TIMEOUT, 0x1ff);
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rt2x00_set_field32(®, TXCSR1_ACK_CONSUME_TIME, 0x13a);
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rt2x00_set_field32(®, TXCSR1_TSF_OFFSET, IEEE80211_HEADER);
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rt2x00_set_field32(®, TXCSR1_AUTORESPONDER, 1);
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rt2x00pci_register_write(rt2x00dev, TXCSR1, reg);
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rt2x00pci_register_read(rt2x00dev, ARCSR2, ®);
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rt2x00_set_field32(®, ARCSR2_SIGNAL, 0x00);
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rt2x00_set_field32(®, ARCSR2_SERVICE, 0x04);
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rt2x00_set_field32(®, ARCSR2_LENGTH,
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GET_DURATION(ACK_SIZE, 10));
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rt2x00pci_register_write(rt2x00dev, ARCSR2, reg);
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rt2x00pci_register_read(rt2x00dev, ARCSR3, ®);
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rt2x00_set_field32(®, ARCSR3_SIGNAL, 0x01 | preamble_mask);
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rt2x00_set_field32(®, ARCSR3_SERVICE, 0x04);
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rt2x00_set_field32(®, ARCSR2_LENGTH,
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GET_DURATION(ACK_SIZE, 20));
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rt2x00pci_register_write(rt2x00dev, ARCSR3, reg);
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rt2x00pci_register_read(rt2x00dev, ARCSR4, ®);
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rt2x00_set_field32(®, ARCSR4_SIGNAL, 0x02 | preamble_mask);
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rt2x00_set_field32(®, ARCSR4_SERVICE, 0x04);
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rt2x00_set_field32(®, ARCSR2_LENGTH,
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GET_DURATION(ACK_SIZE, 55));
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rt2x00pci_register_write(rt2x00dev, ARCSR4, reg);
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rt2x00pci_register_read(rt2x00dev, ARCSR5, ®);
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rt2x00_set_field32(®, ARCSR5_SIGNAL, 0x03 | preamble_mask);
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rt2x00_set_field32(®, ARCSR5_SERVICE, 0x84);
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rt2x00_set_field32(®, ARCSR2_LENGTH,
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GET_DURATION(ACK_SIZE, 110));
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rt2x00pci_register_write(rt2x00dev, ARCSR5, reg);
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}
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if (changed & BSS_CHANGED_BASIC_RATES)
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rt2x00pci_register_write(rt2x00dev, ARCSR1, erp->basic_rates);
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if (changed & BSS_CHANGED_ERP_SLOT) {
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rt2x00pci_register_read(rt2x00dev, CSR11, ®);
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rt2x00_set_field32(®, CSR11_SLOT_TIME, erp->slot_time);
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rt2x00pci_register_write(rt2x00dev, CSR11, reg);
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rt2x00pci_register_read(rt2x00dev, CSR18, ®);
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rt2x00_set_field32(®, CSR18_SIFS, erp->sifs);
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rt2x00_set_field32(®, CSR18_PIFS, erp->pifs);
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rt2x00pci_register_write(rt2x00dev, CSR18, reg);
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rt2x00pci_register_read(rt2x00dev, CSR19, ®);
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rt2x00_set_field32(®, CSR19_DIFS, erp->difs);
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rt2x00_set_field32(®, CSR19_EIFS, erp->eifs);
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rt2x00pci_register_write(rt2x00dev, CSR19, reg);
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}
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if (changed & BSS_CHANGED_BEACON_INT) {
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rt2x00pci_register_read(rt2x00dev, CSR12, ®);
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rt2x00_set_field32(®, CSR12_BEACON_INTERVAL,
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erp->beacon_int * 16);
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rt2x00_set_field32(®, CSR12_CFP_MAX_DURATION,
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erp->beacon_int * 16);
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rt2x00pci_register_write(rt2x00dev, CSR12, reg);
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}
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}
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static void rt2400pci_config_ant(struct rt2x00_dev *rt2x00dev,
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struct antenna_setup *ant)
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{
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u8 r1;
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u8 r4;
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/*
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* We should never come here because rt2x00lib is supposed
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* to catch this and send us the correct antenna explicitely.
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*/
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BUG_ON(ant->rx == ANTENNA_SW_DIVERSITY ||
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ant->tx == ANTENNA_SW_DIVERSITY);
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rt2400pci_bbp_read(rt2x00dev, 4, &r4);
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rt2400pci_bbp_read(rt2x00dev, 1, &r1);
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/*
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* Configure the TX antenna.
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*/
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switch (ant->tx) {
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case ANTENNA_HW_DIVERSITY:
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rt2x00_set_field8(&r1, BBP_R1_TX_ANTENNA, 1);
|
|
break;
|
|
case ANTENNA_A:
|
|
rt2x00_set_field8(&r1, BBP_R1_TX_ANTENNA, 0);
|
|
break;
|
|
case ANTENNA_B:
|
|
default:
|
|
rt2x00_set_field8(&r1, BBP_R1_TX_ANTENNA, 2);
|
|
break;
|
|
}
|
|
|
|
/*
|
|
* Configure the RX antenna.
|
|
*/
|
|
switch (ant->rx) {
|
|
case ANTENNA_HW_DIVERSITY:
|
|
rt2x00_set_field8(&r4, BBP_R4_RX_ANTENNA, 1);
|
|
break;
|
|
case ANTENNA_A:
|
|
rt2x00_set_field8(&r4, BBP_R4_RX_ANTENNA, 0);
|
|
break;
|
|
case ANTENNA_B:
|
|
default:
|
|
rt2x00_set_field8(&r4, BBP_R4_RX_ANTENNA, 2);
|
|
break;
|
|
}
|
|
|
|
rt2400pci_bbp_write(rt2x00dev, 4, r4);
|
|
rt2400pci_bbp_write(rt2x00dev, 1, r1);
|
|
}
|
|
|
|
static void rt2400pci_config_channel(struct rt2x00_dev *rt2x00dev,
|
|
struct rf_channel *rf)
|
|
{
|
|
/*
|
|
* Switch on tuning bits.
|
|
*/
|
|
rt2x00_set_field32(&rf->rf1, RF1_TUNER, 1);
|
|
rt2x00_set_field32(&rf->rf3, RF3_TUNER, 1);
|
|
|
|
rt2400pci_rf_write(rt2x00dev, 1, rf->rf1);
|
|
rt2400pci_rf_write(rt2x00dev, 2, rf->rf2);
|
|
rt2400pci_rf_write(rt2x00dev, 3, rf->rf3);
|
|
|
|
/*
|
|
* RF2420 chipset don't need any additional actions.
|
|
*/
|
|
if (rt2x00_rf(rt2x00dev, RF2420))
|
|
return;
|
|
|
|
/*
|
|
* For the RT2421 chipsets we need to write an invalid
|
|
* reference clock rate to activate auto_tune.
|
|
* After that we set the value back to the correct channel.
|
|
*/
|
|
rt2400pci_rf_write(rt2x00dev, 1, rf->rf1);
|
|
rt2400pci_rf_write(rt2x00dev, 2, 0x000c2a32);
|
|
rt2400pci_rf_write(rt2x00dev, 3, rf->rf3);
|
|
|
|
msleep(1);
|
|
|
|
rt2400pci_rf_write(rt2x00dev, 1, rf->rf1);
|
|
rt2400pci_rf_write(rt2x00dev, 2, rf->rf2);
|
|
rt2400pci_rf_write(rt2x00dev, 3, rf->rf3);
|
|
|
|
msleep(1);
|
|
|
|
/*
|
|
* Switch off tuning bits.
|
|
*/
|
|
rt2x00_set_field32(&rf->rf1, RF1_TUNER, 0);
|
|
rt2x00_set_field32(&rf->rf3, RF3_TUNER, 0);
|
|
|
|
rt2400pci_rf_write(rt2x00dev, 1, rf->rf1);
|
|
rt2400pci_rf_write(rt2x00dev, 3, rf->rf3);
|
|
|
|
/*
|
|
* Clear false CRC during channel switch.
|
|
*/
|
|
rt2x00pci_register_read(rt2x00dev, CNT0, &rf->rf1);
|
|
}
|
|
|
|
static void rt2400pci_config_txpower(struct rt2x00_dev *rt2x00dev, int txpower)
|
|
{
|
|
rt2400pci_bbp_write(rt2x00dev, 3, TXPOWER_TO_DEV(txpower));
|
|
}
|
|
|
|
static void rt2400pci_config_retry_limit(struct rt2x00_dev *rt2x00dev,
|
|
struct rt2x00lib_conf *libconf)
|
|
{
|
|
u32 reg;
|
|
|
|
rt2x00pci_register_read(rt2x00dev, CSR11, ®);
|
|
rt2x00_set_field32(®, CSR11_LONG_RETRY,
|
|
libconf->conf->long_frame_max_tx_count);
|
|
rt2x00_set_field32(®, CSR11_SHORT_RETRY,
|
|
libconf->conf->short_frame_max_tx_count);
|
|
rt2x00pci_register_write(rt2x00dev, CSR11, reg);
|
|
}
|
|
|
|
static void rt2400pci_config_ps(struct rt2x00_dev *rt2x00dev,
|
|
struct rt2x00lib_conf *libconf)
|
|
{
|
|
enum dev_state state =
|
|
(libconf->conf->flags & IEEE80211_CONF_PS) ?
|
|
STATE_SLEEP : STATE_AWAKE;
|
|
u32 reg;
|
|
|
|
if (state == STATE_SLEEP) {
|
|
rt2x00pci_register_read(rt2x00dev, CSR20, ®);
|
|
rt2x00_set_field32(®, CSR20_DELAY_AFTER_TBCN,
|
|
(rt2x00dev->beacon_int - 20) * 16);
|
|
rt2x00_set_field32(®, CSR20_TBCN_BEFORE_WAKEUP,
|
|
libconf->conf->listen_interval - 1);
|
|
|
|
/* We must first disable autowake before it can be enabled */
|
|
rt2x00_set_field32(®, CSR20_AUTOWAKE, 0);
|
|
rt2x00pci_register_write(rt2x00dev, CSR20, reg);
|
|
|
|
rt2x00_set_field32(®, CSR20_AUTOWAKE, 1);
|
|
rt2x00pci_register_write(rt2x00dev, CSR20, reg);
|
|
} else {
|
|
rt2x00pci_register_read(rt2x00dev, CSR20, ®);
|
|
rt2x00_set_field32(®, CSR20_AUTOWAKE, 0);
|
|
rt2x00pci_register_write(rt2x00dev, CSR20, reg);
|
|
}
|
|
|
|
rt2x00dev->ops->lib->set_device_state(rt2x00dev, state);
|
|
}
|
|
|
|
static void rt2400pci_config(struct rt2x00_dev *rt2x00dev,
|
|
struct rt2x00lib_conf *libconf,
|
|
const unsigned int flags)
|
|
{
|
|
if (flags & IEEE80211_CONF_CHANGE_CHANNEL)
|
|
rt2400pci_config_channel(rt2x00dev, &libconf->rf);
|
|
if (flags & IEEE80211_CONF_CHANGE_POWER)
|
|
rt2400pci_config_txpower(rt2x00dev,
|
|
libconf->conf->power_level);
|
|
if (flags & IEEE80211_CONF_CHANGE_RETRY_LIMITS)
|
|
rt2400pci_config_retry_limit(rt2x00dev, libconf);
|
|
if (flags & IEEE80211_CONF_CHANGE_PS)
|
|
rt2400pci_config_ps(rt2x00dev, libconf);
|
|
}
|
|
|
|
static void rt2400pci_config_cw(struct rt2x00_dev *rt2x00dev,
|
|
const int cw_min, const int cw_max)
|
|
{
|
|
u32 reg;
|
|
|
|
rt2x00pci_register_read(rt2x00dev, CSR11, ®);
|
|
rt2x00_set_field32(®, CSR11_CWMIN, cw_min);
|
|
rt2x00_set_field32(®, CSR11_CWMAX, cw_max);
|
|
rt2x00pci_register_write(rt2x00dev, CSR11, reg);
|
|
}
|
|
|
|
/*
|
|
* Link tuning
|
|
*/
|
|
static void rt2400pci_link_stats(struct rt2x00_dev *rt2x00dev,
|
|
struct link_qual *qual)
|
|
{
|
|
u32 reg;
|
|
u8 bbp;
|
|
|
|
/*
|
|
* Update FCS error count from register.
|
|
*/
|
|
rt2x00pci_register_read(rt2x00dev, CNT0, ®);
|
|
qual->rx_failed = rt2x00_get_field32(reg, CNT0_FCS_ERROR);
|
|
|
|
/*
|
|
* Update False CCA count from register.
|
|
*/
|
|
rt2400pci_bbp_read(rt2x00dev, 39, &bbp);
|
|
qual->false_cca = bbp;
|
|
}
|
|
|
|
static inline void rt2400pci_set_vgc(struct rt2x00_dev *rt2x00dev,
|
|
struct link_qual *qual, u8 vgc_level)
|
|
{
|
|
if (qual->vgc_level_reg != vgc_level) {
|
|
rt2400pci_bbp_write(rt2x00dev, 13, vgc_level);
|
|
qual->vgc_level = vgc_level;
|
|
qual->vgc_level_reg = vgc_level;
|
|
}
|
|
}
|
|
|
|
static void rt2400pci_reset_tuner(struct rt2x00_dev *rt2x00dev,
|
|
struct link_qual *qual)
|
|
{
|
|
rt2400pci_set_vgc(rt2x00dev, qual, 0x08);
|
|
}
|
|
|
|
static void rt2400pci_link_tuner(struct rt2x00_dev *rt2x00dev,
|
|
struct link_qual *qual, const u32 count)
|
|
{
|
|
/*
|
|
* The link tuner should not run longer then 60 seconds,
|
|
* and should run once every 2 seconds.
|
|
*/
|
|
if (count > 60 || !(count & 1))
|
|
return;
|
|
|
|
/*
|
|
* Base r13 link tuning on the false cca count.
|
|
*/
|
|
if ((qual->false_cca > 512) && (qual->vgc_level < 0x20))
|
|
rt2400pci_set_vgc(rt2x00dev, qual, ++qual->vgc_level);
|
|
else if ((qual->false_cca < 100) && (qual->vgc_level > 0x08))
|
|
rt2400pci_set_vgc(rt2x00dev, qual, --qual->vgc_level);
|
|
}
|
|
|
|
/*
|
|
* Queue handlers.
|
|
*/
|
|
static void rt2400pci_start_queue(struct data_queue *queue)
|
|
{
|
|
struct rt2x00_dev *rt2x00dev = queue->rt2x00dev;
|
|
u32 reg;
|
|
|
|
switch (queue->qid) {
|
|
case QID_RX:
|
|
rt2x00pci_register_read(rt2x00dev, RXCSR0, ®);
|
|
rt2x00_set_field32(®, RXCSR0_DISABLE_RX, 0);
|
|
rt2x00pci_register_write(rt2x00dev, RXCSR0, reg);
|
|
break;
|
|
case QID_BEACON:
|
|
rt2x00pci_register_read(rt2x00dev, CSR14, ®);
|
|
rt2x00_set_field32(®, CSR14_TSF_COUNT, 1);
|
|
rt2x00_set_field32(®, CSR14_TBCN, 1);
|
|
rt2x00_set_field32(®, CSR14_BEACON_GEN, 1);
|
|
rt2x00pci_register_write(rt2x00dev, CSR14, reg);
|
|
break;
|
|
default:
|
|
break;
|
|
}
|
|
}
|
|
|
|
static void rt2400pci_kick_queue(struct data_queue *queue)
|
|
{
|
|
struct rt2x00_dev *rt2x00dev = queue->rt2x00dev;
|
|
u32 reg;
|
|
|
|
switch (queue->qid) {
|
|
case QID_AC_VO:
|
|
rt2x00pci_register_read(rt2x00dev, TXCSR0, ®);
|
|
rt2x00_set_field32(®, TXCSR0_KICK_PRIO, 1);
|
|
rt2x00pci_register_write(rt2x00dev, TXCSR0, reg);
|
|
break;
|
|
case QID_AC_VI:
|
|
rt2x00pci_register_read(rt2x00dev, TXCSR0, ®);
|
|
rt2x00_set_field32(®, TXCSR0_KICK_TX, 1);
|
|
rt2x00pci_register_write(rt2x00dev, TXCSR0, reg);
|
|
break;
|
|
case QID_ATIM:
|
|
rt2x00pci_register_read(rt2x00dev, TXCSR0, ®);
|
|
rt2x00_set_field32(®, TXCSR0_KICK_ATIM, 1);
|
|
rt2x00pci_register_write(rt2x00dev, TXCSR0, reg);
|
|
break;
|
|
default:
|
|
break;
|
|
}
|
|
}
|
|
|
|
static void rt2400pci_stop_queue(struct data_queue *queue)
|
|
{
|
|
struct rt2x00_dev *rt2x00dev = queue->rt2x00dev;
|
|
u32 reg;
|
|
|
|
switch (queue->qid) {
|
|
case QID_AC_VO:
|
|
case QID_AC_VI:
|
|
case QID_ATIM:
|
|
rt2x00pci_register_read(rt2x00dev, TXCSR0, ®);
|
|
rt2x00_set_field32(®, TXCSR0_ABORT, 1);
|
|
rt2x00pci_register_write(rt2x00dev, TXCSR0, reg);
|
|
break;
|
|
case QID_RX:
|
|
rt2x00pci_register_read(rt2x00dev, RXCSR0, ®);
|
|
rt2x00_set_field32(®, RXCSR0_DISABLE_RX, 1);
|
|
rt2x00pci_register_write(rt2x00dev, RXCSR0, reg);
|
|
break;
|
|
case QID_BEACON:
|
|
rt2x00pci_register_read(rt2x00dev, CSR14, ®);
|
|
rt2x00_set_field32(®, CSR14_TSF_COUNT, 0);
|
|
rt2x00_set_field32(®, CSR14_TBCN, 0);
|
|
rt2x00_set_field32(®, CSR14_BEACON_GEN, 0);
|
|
rt2x00pci_register_write(rt2x00dev, CSR14, reg);
|
|
|
|
/*
|
|
* Wait for possibly running tbtt tasklets.
|
|
*/
|
|
tasklet_kill(&rt2x00dev->tbtt_tasklet);
|
|
break;
|
|
default:
|
|
break;
|
|
}
|
|
}
|
|
|
|
/*
|
|
* Initialization functions.
|
|
*/
|
|
static bool rt2400pci_get_entry_state(struct queue_entry *entry)
|
|
{
|
|
struct queue_entry_priv_pci *entry_priv = entry->priv_data;
|
|
u32 word;
|
|
|
|
if (entry->queue->qid == QID_RX) {
|
|
rt2x00_desc_read(entry_priv->desc, 0, &word);
|
|
|
|
return rt2x00_get_field32(word, RXD_W0_OWNER_NIC);
|
|
} else {
|
|
rt2x00_desc_read(entry_priv->desc, 0, &word);
|
|
|
|
return (rt2x00_get_field32(word, TXD_W0_OWNER_NIC) ||
|
|
rt2x00_get_field32(word, TXD_W0_VALID));
|
|
}
|
|
}
|
|
|
|
static void rt2400pci_clear_entry(struct queue_entry *entry)
|
|
{
|
|
struct queue_entry_priv_pci *entry_priv = entry->priv_data;
|
|
struct skb_frame_desc *skbdesc = get_skb_frame_desc(entry->skb);
|
|
u32 word;
|
|
|
|
if (entry->queue->qid == QID_RX) {
|
|
rt2x00_desc_read(entry_priv->desc, 2, &word);
|
|
rt2x00_set_field32(&word, RXD_W2_BUFFER_LENGTH, entry->skb->len);
|
|
rt2x00_desc_write(entry_priv->desc, 2, word);
|
|
|
|
rt2x00_desc_read(entry_priv->desc, 1, &word);
|
|
rt2x00_set_field32(&word, RXD_W1_BUFFER_ADDRESS, skbdesc->skb_dma);
|
|
rt2x00_desc_write(entry_priv->desc, 1, word);
|
|
|
|
rt2x00_desc_read(entry_priv->desc, 0, &word);
|
|
rt2x00_set_field32(&word, RXD_W0_OWNER_NIC, 1);
|
|
rt2x00_desc_write(entry_priv->desc, 0, word);
|
|
} else {
|
|
rt2x00_desc_read(entry_priv->desc, 0, &word);
|
|
rt2x00_set_field32(&word, TXD_W0_VALID, 0);
|
|
rt2x00_set_field32(&word, TXD_W0_OWNER_NIC, 0);
|
|
rt2x00_desc_write(entry_priv->desc, 0, word);
|
|
}
|
|
}
|
|
|
|
static int rt2400pci_init_queues(struct rt2x00_dev *rt2x00dev)
|
|
{
|
|
struct queue_entry_priv_pci *entry_priv;
|
|
u32 reg;
|
|
|
|
/*
|
|
* Initialize registers.
|
|
*/
|
|
rt2x00pci_register_read(rt2x00dev, TXCSR2, ®);
|
|
rt2x00_set_field32(®, TXCSR2_TXD_SIZE, rt2x00dev->tx[0].desc_size);
|
|
rt2x00_set_field32(®, TXCSR2_NUM_TXD, rt2x00dev->tx[1].limit);
|
|
rt2x00_set_field32(®, TXCSR2_NUM_ATIM, rt2x00dev->atim->limit);
|
|
rt2x00_set_field32(®, TXCSR2_NUM_PRIO, rt2x00dev->tx[0].limit);
|
|
rt2x00pci_register_write(rt2x00dev, TXCSR2, reg);
|
|
|
|
entry_priv = rt2x00dev->tx[1].entries[0].priv_data;
|
|
rt2x00pci_register_read(rt2x00dev, TXCSR3, ®);
|
|
rt2x00_set_field32(®, TXCSR3_TX_RING_REGISTER,
|
|
entry_priv->desc_dma);
|
|
rt2x00pci_register_write(rt2x00dev, TXCSR3, reg);
|
|
|
|
entry_priv = rt2x00dev->tx[0].entries[0].priv_data;
|
|
rt2x00pci_register_read(rt2x00dev, TXCSR5, ®);
|
|
rt2x00_set_field32(®, TXCSR5_PRIO_RING_REGISTER,
|
|
entry_priv->desc_dma);
|
|
rt2x00pci_register_write(rt2x00dev, TXCSR5, reg);
|
|
|
|
entry_priv = rt2x00dev->atim->entries[0].priv_data;
|
|
rt2x00pci_register_read(rt2x00dev, TXCSR4, ®);
|
|
rt2x00_set_field32(®, TXCSR4_ATIM_RING_REGISTER,
|
|
entry_priv->desc_dma);
|
|
rt2x00pci_register_write(rt2x00dev, TXCSR4, reg);
|
|
|
|
entry_priv = rt2x00dev->bcn->entries[0].priv_data;
|
|
rt2x00pci_register_read(rt2x00dev, TXCSR6, ®);
|
|
rt2x00_set_field32(®, TXCSR6_BEACON_RING_REGISTER,
|
|
entry_priv->desc_dma);
|
|
rt2x00pci_register_write(rt2x00dev, TXCSR6, reg);
|
|
|
|
rt2x00pci_register_read(rt2x00dev, RXCSR1, ®);
|
|
rt2x00_set_field32(®, RXCSR1_RXD_SIZE, rt2x00dev->rx->desc_size);
|
|
rt2x00_set_field32(®, RXCSR1_NUM_RXD, rt2x00dev->rx->limit);
|
|
rt2x00pci_register_write(rt2x00dev, RXCSR1, reg);
|
|
|
|
entry_priv = rt2x00dev->rx->entries[0].priv_data;
|
|
rt2x00pci_register_read(rt2x00dev, RXCSR2, ®);
|
|
rt2x00_set_field32(®, RXCSR2_RX_RING_REGISTER,
|
|
entry_priv->desc_dma);
|
|
rt2x00pci_register_write(rt2x00dev, RXCSR2, reg);
|
|
|
|
return 0;
|
|
}
|
|
|
|
static int rt2400pci_init_registers(struct rt2x00_dev *rt2x00dev)
|
|
{
|
|
u32 reg;
|
|
|
|
rt2x00pci_register_write(rt2x00dev, PSCSR0, 0x00020002);
|
|
rt2x00pci_register_write(rt2x00dev, PSCSR1, 0x00000002);
|
|
rt2x00pci_register_write(rt2x00dev, PSCSR2, 0x00023f20);
|
|
rt2x00pci_register_write(rt2x00dev, PSCSR3, 0x00000002);
|
|
|
|
rt2x00pci_register_read(rt2x00dev, TIMECSR, ®);
|
|
rt2x00_set_field32(®, TIMECSR_US_COUNT, 33);
|
|
rt2x00_set_field32(®, TIMECSR_US_64_COUNT, 63);
|
|
rt2x00_set_field32(®, TIMECSR_BEACON_EXPECT, 0);
|
|
rt2x00pci_register_write(rt2x00dev, TIMECSR, reg);
|
|
|
|
rt2x00pci_register_read(rt2x00dev, CSR9, ®);
|
|
rt2x00_set_field32(®, CSR9_MAX_FRAME_UNIT,
|
|
(rt2x00dev->rx->data_size / 128));
|
|
rt2x00pci_register_write(rt2x00dev, CSR9, reg);
|
|
|
|
rt2x00pci_register_read(rt2x00dev, CSR14, ®);
|
|
rt2x00_set_field32(®, CSR14_TSF_COUNT, 0);
|
|
rt2x00_set_field32(®, CSR14_TSF_SYNC, 0);
|
|
rt2x00_set_field32(®, CSR14_TBCN, 0);
|
|
rt2x00_set_field32(®, CSR14_TCFP, 0);
|
|
rt2x00_set_field32(®, CSR14_TATIMW, 0);
|
|
rt2x00_set_field32(®, CSR14_BEACON_GEN, 0);
|
|
rt2x00_set_field32(®, CSR14_CFP_COUNT_PRELOAD, 0);
|
|
rt2x00_set_field32(®, CSR14_TBCM_PRELOAD, 0);
|
|
rt2x00pci_register_write(rt2x00dev, CSR14, reg);
|
|
|
|
rt2x00pci_register_write(rt2x00dev, CNT3, 0x3f080000);
|
|
|
|
rt2x00pci_register_read(rt2x00dev, ARCSR0, ®);
|
|
rt2x00_set_field32(®, ARCSR0_AR_BBP_DATA0, 133);
|
|
rt2x00_set_field32(®, ARCSR0_AR_BBP_ID0, 134);
|
|
rt2x00_set_field32(®, ARCSR0_AR_BBP_DATA1, 136);
|
|
rt2x00_set_field32(®, ARCSR0_AR_BBP_ID1, 135);
|
|
rt2x00pci_register_write(rt2x00dev, ARCSR0, reg);
|
|
|
|
rt2x00pci_register_read(rt2x00dev, RXCSR3, ®);
|
|
rt2x00_set_field32(®, RXCSR3_BBP_ID0, 3); /* Tx power.*/
|
|
rt2x00_set_field32(®, RXCSR3_BBP_ID0_VALID, 1);
|
|
rt2x00_set_field32(®, RXCSR3_BBP_ID1, 32); /* Signal */
|
|
rt2x00_set_field32(®, RXCSR3_BBP_ID1_VALID, 1);
|
|
rt2x00_set_field32(®, RXCSR3_BBP_ID2, 36); /* Rssi */
|
|
rt2x00_set_field32(®, RXCSR3_BBP_ID2_VALID, 1);
|
|
rt2x00pci_register_write(rt2x00dev, RXCSR3, reg);
|
|
|
|
rt2x00pci_register_write(rt2x00dev, PWRCSR0, 0x3f3b3100);
|
|
|
|
if (rt2x00dev->ops->lib->set_device_state(rt2x00dev, STATE_AWAKE))
|
|
return -EBUSY;
|
|
|
|
rt2x00pci_register_write(rt2x00dev, MACCSR0, 0x00217223);
|
|
rt2x00pci_register_write(rt2x00dev, MACCSR1, 0x00235518);
|
|
|
|
rt2x00pci_register_read(rt2x00dev, MACCSR2, ®);
|
|
rt2x00_set_field32(®, MACCSR2_DELAY, 64);
|
|
rt2x00pci_register_write(rt2x00dev, MACCSR2, reg);
|
|
|
|
rt2x00pci_register_read(rt2x00dev, RALINKCSR, ®);
|
|
rt2x00_set_field32(®, RALINKCSR_AR_BBP_DATA0, 17);
|
|
rt2x00_set_field32(®, RALINKCSR_AR_BBP_ID0, 154);
|
|
rt2x00_set_field32(®, RALINKCSR_AR_BBP_DATA1, 0);
|
|
rt2x00_set_field32(®, RALINKCSR_AR_BBP_ID1, 154);
|
|
rt2x00pci_register_write(rt2x00dev, RALINKCSR, reg);
|
|
|
|
rt2x00pci_register_read(rt2x00dev, CSR1, ®);
|
|
rt2x00_set_field32(®, CSR1_SOFT_RESET, 1);
|
|
rt2x00_set_field32(®, CSR1_BBP_RESET, 0);
|
|
rt2x00_set_field32(®, CSR1_HOST_READY, 0);
|
|
rt2x00pci_register_write(rt2x00dev, CSR1, reg);
|
|
|
|
rt2x00pci_register_read(rt2x00dev, CSR1, ®);
|
|
rt2x00_set_field32(®, CSR1_SOFT_RESET, 0);
|
|
rt2x00_set_field32(®, CSR1_HOST_READY, 1);
|
|
rt2x00pci_register_write(rt2x00dev, CSR1, reg);
|
|
|
|
/*
|
|
* We must clear the FCS and FIFO error count.
|
|
* These registers are cleared on read,
|
|
* so we may pass a useless variable to store the value.
|
|
*/
|
|
rt2x00pci_register_read(rt2x00dev, CNT0, ®);
|
|
rt2x00pci_register_read(rt2x00dev, CNT4, ®);
|
|
|
|
return 0;
|
|
}
|
|
|
|
static int rt2400pci_wait_bbp_ready(struct rt2x00_dev *rt2x00dev)
|
|
{
|
|
unsigned int i;
|
|
u8 value;
|
|
|
|
for (i = 0; i < REGISTER_BUSY_COUNT; i++) {
|
|
rt2400pci_bbp_read(rt2x00dev, 0, &value);
|
|
if ((value != 0xff) && (value != 0x00))
|
|
return 0;
|
|
udelay(REGISTER_BUSY_DELAY);
|
|
}
|
|
|
|
ERROR(rt2x00dev, "BBP register access failed, aborting.\n");
|
|
return -EACCES;
|
|
}
|
|
|
|
static int rt2400pci_init_bbp(struct rt2x00_dev *rt2x00dev)
|
|
{
|
|
unsigned int i;
|
|
u16 eeprom;
|
|
u8 reg_id;
|
|
u8 value;
|
|
|
|
if (unlikely(rt2400pci_wait_bbp_ready(rt2x00dev)))
|
|
return -EACCES;
|
|
|
|
rt2400pci_bbp_write(rt2x00dev, 1, 0x00);
|
|
rt2400pci_bbp_write(rt2x00dev, 3, 0x27);
|
|
rt2400pci_bbp_write(rt2x00dev, 4, 0x08);
|
|
rt2400pci_bbp_write(rt2x00dev, 10, 0x0f);
|
|
rt2400pci_bbp_write(rt2x00dev, 15, 0x72);
|
|
rt2400pci_bbp_write(rt2x00dev, 16, 0x74);
|
|
rt2400pci_bbp_write(rt2x00dev, 17, 0x20);
|
|
rt2400pci_bbp_write(rt2x00dev, 18, 0x72);
|
|
rt2400pci_bbp_write(rt2x00dev, 19, 0x0b);
|
|
rt2400pci_bbp_write(rt2x00dev, 20, 0x00);
|
|
rt2400pci_bbp_write(rt2x00dev, 28, 0x11);
|
|
rt2400pci_bbp_write(rt2x00dev, 29, 0x04);
|
|
rt2400pci_bbp_write(rt2x00dev, 30, 0x21);
|
|
rt2400pci_bbp_write(rt2x00dev, 31, 0x00);
|
|
|
|
for (i = 0; i < EEPROM_BBP_SIZE; i++) {
|
|
rt2x00_eeprom_read(rt2x00dev, EEPROM_BBP_START + i, &eeprom);
|
|
|
|
if (eeprom != 0xffff && eeprom != 0x0000) {
|
|
reg_id = rt2x00_get_field16(eeprom, EEPROM_BBP_REG_ID);
|
|
value = rt2x00_get_field16(eeprom, EEPROM_BBP_VALUE);
|
|
rt2400pci_bbp_write(rt2x00dev, reg_id, value);
|
|
}
|
|
}
|
|
|
|
return 0;
|
|
}
|
|
|
|
/*
|
|
* Device state switch handlers.
|
|
*/
|
|
static void rt2400pci_toggle_irq(struct rt2x00_dev *rt2x00dev,
|
|
enum dev_state state)
|
|
{
|
|
int mask = (state == STATE_RADIO_IRQ_OFF);
|
|
u32 reg;
|
|
unsigned long flags;
|
|
|
|
/*
|
|
* When interrupts are being enabled, the interrupt registers
|
|
* should clear the register to assure a clean state.
|
|
*/
|
|
if (state == STATE_RADIO_IRQ_ON) {
|
|
rt2x00pci_register_read(rt2x00dev, CSR7, ®);
|
|
rt2x00pci_register_write(rt2x00dev, CSR7, reg);
|
|
}
|
|
|
|
/*
|
|
* Only toggle the interrupts bits we are going to use.
|
|
* Non-checked interrupt bits are disabled by default.
|
|
*/
|
|
spin_lock_irqsave(&rt2x00dev->irqmask_lock, flags);
|
|
|
|
rt2x00pci_register_read(rt2x00dev, CSR8, ®);
|
|
rt2x00_set_field32(®, CSR8_TBCN_EXPIRE, mask);
|
|
rt2x00_set_field32(®, CSR8_TXDONE_TXRING, mask);
|
|
rt2x00_set_field32(®, CSR8_TXDONE_ATIMRING, mask);
|
|
rt2x00_set_field32(®, CSR8_TXDONE_PRIORING, mask);
|
|
rt2x00_set_field32(®, CSR8_RXDONE, mask);
|
|
rt2x00pci_register_write(rt2x00dev, CSR8, reg);
|
|
|
|
spin_unlock_irqrestore(&rt2x00dev->irqmask_lock, flags);
|
|
|
|
if (state == STATE_RADIO_IRQ_OFF) {
|
|
/*
|
|
* Ensure that all tasklets are finished before
|
|
* disabling the interrupts.
|
|
*/
|
|
tasklet_kill(&rt2x00dev->txstatus_tasklet);
|
|
tasklet_kill(&rt2x00dev->rxdone_tasklet);
|
|
tasklet_kill(&rt2x00dev->tbtt_tasklet);
|
|
}
|
|
}
|
|
|
|
static int rt2400pci_enable_radio(struct rt2x00_dev *rt2x00dev)
|
|
{
|
|
/*
|
|
* Initialize all registers.
|
|
*/
|
|
if (unlikely(rt2400pci_init_queues(rt2x00dev) ||
|
|
rt2400pci_init_registers(rt2x00dev) ||
|
|
rt2400pci_init_bbp(rt2x00dev)))
|
|
return -EIO;
|
|
|
|
return 0;
|
|
}
|
|
|
|
static void rt2400pci_disable_radio(struct rt2x00_dev *rt2x00dev)
|
|
{
|
|
/*
|
|
* Disable power
|
|
*/
|
|
rt2x00pci_register_write(rt2x00dev, PWRCSR0, 0);
|
|
}
|
|
|
|
static int rt2400pci_set_state(struct rt2x00_dev *rt2x00dev,
|
|
enum dev_state state)
|
|
{
|
|
u32 reg, reg2;
|
|
unsigned int i;
|
|
char put_to_sleep;
|
|
char bbp_state;
|
|
char rf_state;
|
|
|
|
put_to_sleep = (state != STATE_AWAKE);
|
|
|
|
rt2x00pci_register_read(rt2x00dev, PWRCSR1, ®);
|
|
rt2x00_set_field32(®, PWRCSR1_SET_STATE, 1);
|
|
rt2x00_set_field32(®, PWRCSR1_BBP_DESIRE_STATE, state);
|
|
rt2x00_set_field32(®, PWRCSR1_RF_DESIRE_STATE, state);
|
|
rt2x00_set_field32(®, PWRCSR1_PUT_TO_SLEEP, put_to_sleep);
|
|
rt2x00pci_register_write(rt2x00dev, PWRCSR1, reg);
|
|
|
|
/*
|
|
* Device is not guaranteed to be in the requested state yet.
|
|
* We must wait until the register indicates that the
|
|
* device has entered the correct state.
|
|
*/
|
|
for (i = 0; i < REGISTER_BUSY_COUNT; i++) {
|
|
rt2x00pci_register_read(rt2x00dev, PWRCSR1, ®2);
|
|
bbp_state = rt2x00_get_field32(reg2, PWRCSR1_BBP_CURR_STATE);
|
|
rf_state = rt2x00_get_field32(reg2, PWRCSR1_RF_CURR_STATE);
|
|
if (bbp_state == state && rf_state == state)
|
|
return 0;
|
|
rt2x00pci_register_write(rt2x00dev, PWRCSR1, reg);
|
|
msleep(10);
|
|
}
|
|
|
|
return -EBUSY;
|
|
}
|
|
|
|
static int rt2400pci_set_device_state(struct rt2x00_dev *rt2x00dev,
|
|
enum dev_state state)
|
|
{
|
|
int retval = 0;
|
|
|
|
switch (state) {
|
|
case STATE_RADIO_ON:
|
|
retval = rt2400pci_enable_radio(rt2x00dev);
|
|
break;
|
|
case STATE_RADIO_OFF:
|
|
rt2400pci_disable_radio(rt2x00dev);
|
|
break;
|
|
case STATE_RADIO_IRQ_ON:
|
|
case STATE_RADIO_IRQ_OFF:
|
|
rt2400pci_toggle_irq(rt2x00dev, state);
|
|
break;
|
|
case STATE_DEEP_SLEEP:
|
|
case STATE_SLEEP:
|
|
case STATE_STANDBY:
|
|
case STATE_AWAKE:
|
|
retval = rt2400pci_set_state(rt2x00dev, state);
|
|
break;
|
|
default:
|
|
retval = -ENOTSUPP;
|
|
break;
|
|
}
|
|
|
|
if (unlikely(retval))
|
|
ERROR(rt2x00dev, "Device failed to enter state %d (%d).\n",
|
|
state, retval);
|
|
|
|
return retval;
|
|
}
|
|
|
|
/*
|
|
* TX descriptor initialization
|
|
*/
|
|
static void rt2400pci_write_tx_desc(struct queue_entry *entry,
|
|
struct txentry_desc *txdesc)
|
|
{
|
|
struct skb_frame_desc *skbdesc = get_skb_frame_desc(entry->skb);
|
|
struct queue_entry_priv_pci *entry_priv = entry->priv_data;
|
|
__le32 *txd = entry_priv->desc;
|
|
u32 word;
|
|
|
|
/*
|
|
* Start writing the descriptor words.
|
|
*/
|
|
rt2x00_desc_read(txd, 1, &word);
|
|
rt2x00_set_field32(&word, TXD_W1_BUFFER_ADDRESS, skbdesc->skb_dma);
|
|
rt2x00_desc_write(txd, 1, word);
|
|
|
|
rt2x00_desc_read(txd, 2, &word);
|
|
rt2x00_set_field32(&word, TXD_W2_BUFFER_LENGTH, txdesc->length);
|
|
rt2x00_set_field32(&word, TXD_W2_DATABYTE_COUNT, txdesc->length);
|
|
rt2x00_desc_write(txd, 2, word);
|
|
|
|
rt2x00_desc_read(txd, 3, &word);
|
|
rt2x00_set_field32(&word, TXD_W3_PLCP_SIGNAL, txdesc->u.plcp.signal);
|
|
rt2x00_set_field32(&word, TXD_W3_PLCP_SIGNAL_REGNUM, 5);
|
|
rt2x00_set_field32(&word, TXD_W3_PLCP_SIGNAL_BUSY, 1);
|
|
rt2x00_set_field32(&word, TXD_W3_PLCP_SERVICE, txdesc->u.plcp.service);
|
|
rt2x00_set_field32(&word, TXD_W3_PLCP_SERVICE_REGNUM, 6);
|
|
rt2x00_set_field32(&word, TXD_W3_PLCP_SERVICE_BUSY, 1);
|
|
rt2x00_desc_write(txd, 3, word);
|
|
|
|
rt2x00_desc_read(txd, 4, &word);
|
|
rt2x00_set_field32(&word, TXD_W4_PLCP_LENGTH_LOW,
|
|
txdesc->u.plcp.length_low);
|
|
rt2x00_set_field32(&word, TXD_W3_PLCP_LENGTH_LOW_REGNUM, 8);
|
|
rt2x00_set_field32(&word, TXD_W3_PLCP_LENGTH_LOW_BUSY, 1);
|
|
rt2x00_set_field32(&word, TXD_W4_PLCP_LENGTH_HIGH,
|
|
txdesc->u.plcp.length_high);
|
|
rt2x00_set_field32(&word, TXD_W3_PLCP_LENGTH_HIGH_REGNUM, 7);
|
|
rt2x00_set_field32(&word, TXD_W3_PLCP_LENGTH_HIGH_BUSY, 1);
|
|
rt2x00_desc_write(txd, 4, word);
|
|
|
|
/*
|
|
* Writing TXD word 0 must the last to prevent a race condition with
|
|
* the device, whereby the device may take hold of the TXD before we
|
|
* finished updating it.
|
|
*/
|
|
rt2x00_desc_read(txd, 0, &word);
|
|
rt2x00_set_field32(&word, TXD_W0_OWNER_NIC, 1);
|
|
rt2x00_set_field32(&word, TXD_W0_VALID, 1);
|
|
rt2x00_set_field32(&word, TXD_W0_MORE_FRAG,
|
|
test_bit(ENTRY_TXD_MORE_FRAG, &txdesc->flags));
|
|
rt2x00_set_field32(&word, TXD_W0_ACK,
|
|
test_bit(ENTRY_TXD_ACK, &txdesc->flags));
|
|
rt2x00_set_field32(&word, TXD_W0_TIMESTAMP,
|
|
test_bit(ENTRY_TXD_REQ_TIMESTAMP, &txdesc->flags));
|
|
rt2x00_set_field32(&word, TXD_W0_RTS,
|
|
test_bit(ENTRY_TXD_RTS_FRAME, &txdesc->flags));
|
|
rt2x00_set_field32(&word, TXD_W0_IFS, txdesc->u.plcp.ifs);
|
|
rt2x00_set_field32(&word, TXD_W0_RETRY_MODE,
|
|
test_bit(ENTRY_TXD_RETRY_MODE, &txdesc->flags));
|
|
rt2x00_desc_write(txd, 0, word);
|
|
|
|
/*
|
|
* Register descriptor details in skb frame descriptor.
|
|
*/
|
|
skbdesc->desc = txd;
|
|
skbdesc->desc_len = TXD_DESC_SIZE;
|
|
}
|
|
|
|
/*
|
|
* TX data initialization
|
|
*/
|
|
static void rt2400pci_write_beacon(struct queue_entry *entry,
|
|
struct txentry_desc *txdesc)
|
|
{
|
|
struct rt2x00_dev *rt2x00dev = entry->queue->rt2x00dev;
|
|
u32 reg;
|
|
|
|
/*
|
|
* Disable beaconing while we are reloading the beacon data,
|
|
* otherwise we might be sending out invalid data.
|
|
*/
|
|
rt2x00pci_register_read(rt2x00dev, CSR14, ®);
|
|
rt2x00_set_field32(®, CSR14_BEACON_GEN, 0);
|
|
rt2x00pci_register_write(rt2x00dev, CSR14, reg);
|
|
|
|
rt2x00queue_map_txskb(entry);
|
|
|
|
/*
|
|
* Write the TX descriptor for the beacon.
|
|
*/
|
|
rt2400pci_write_tx_desc(entry, txdesc);
|
|
|
|
/*
|
|
* Dump beacon to userspace through debugfs.
|
|
*/
|
|
rt2x00debug_dump_frame(rt2x00dev, DUMP_FRAME_BEACON, entry->skb);
|
|
|
|
/*
|
|
* Enable beaconing again.
|
|
*/
|
|
rt2x00_set_field32(®, CSR14_BEACON_GEN, 1);
|
|
rt2x00pci_register_write(rt2x00dev, CSR14, reg);
|
|
}
|
|
|
|
/*
|
|
* RX control handlers
|
|
*/
|
|
static void rt2400pci_fill_rxdone(struct queue_entry *entry,
|
|
struct rxdone_entry_desc *rxdesc)
|
|
{
|
|
struct rt2x00_dev *rt2x00dev = entry->queue->rt2x00dev;
|
|
struct queue_entry_priv_pci *entry_priv = entry->priv_data;
|
|
u32 word0;
|
|
u32 word2;
|
|
u32 word3;
|
|
u32 word4;
|
|
u64 tsf;
|
|
u32 rx_low;
|
|
u32 rx_high;
|
|
|
|
rt2x00_desc_read(entry_priv->desc, 0, &word0);
|
|
rt2x00_desc_read(entry_priv->desc, 2, &word2);
|
|
rt2x00_desc_read(entry_priv->desc, 3, &word3);
|
|
rt2x00_desc_read(entry_priv->desc, 4, &word4);
|
|
|
|
if (rt2x00_get_field32(word0, RXD_W0_CRC_ERROR))
|
|
rxdesc->flags |= RX_FLAG_FAILED_FCS_CRC;
|
|
if (rt2x00_get_field32(word0, RXD_W0_PHYSICAL_ERROR))
|
|
rxdesc->flags |= RX_FLAG_FAILED_PLCP_CRC;
|
|
|
|
/*
|
|
* We only get the lower 32bits from the timestamp,
|
|
* to get the full 64bits we must complement it with
|
|
* the timestamp from get_tsf().
|
|
* Note that when a wraparound of the lower 32bits
|
|
* has occurred between the frame arrival and the get_tsf()
|
|
* call, we must decrease the higher 32bits with 1 to get
|
|
* to correct value.
|
|
*/
|
|
tsf = rt2x00dev->ops->hw->get_tsf(rt2x00dev->hw, NULL);
|
|
rx_low = rt2x00_get_field32(word4, RXD_W4_RX_END_TIME);
|
|
rx_high = upper_32_bits(tsf);
|
|
|
|
if ((u32)tsf <= rx_low)
|
|
rx_high--;
|
|
|
|
/*
|
|
* Obtain the status about this packet.
|
|
* The signal is the PLCP value, and needs to be stripped
|
|
* of the preamble bit (0x08).
|
|
*/
|
|
rxdesc->timestamp = ((u64)rx_high << 32) | rx_low;
|
|
rxdesc->signal = rt2x00_get_field32(word2, RXD_W2_SIGNAL) & ~0x08;
|
|
rxdesc->rssi = rt2x00_get_field32(word2, RXD_W3_RSSI) -
|
|
entry->queue->rt2x00dev->rssi_offset;
|
|
rxdesc->size = rt2x00_get_field32(word0, RXD_W0_DATABYTE_COUNT);
|
|
|
|
rxdesc->dev_flags |= RXDONE_SIGNAL_PLCP;
|
|
if (rt2x00_get_field32(word0, RXD_W0_MY_BSS))
|
|
rxdesc->dev_flags |= RXDONE_MY_BSS;
|
|
}
|
|
|
|
/*
|
|
* Interrupt functions.
|
|
*/
|
|
static void rt2400pci_txdone(struct rt2x00_dev *rt2x00dev,
|
|
const enum data_queue_qid queue_idx)
|
|
{
|
|
struct data_queue *queue = rt2x00queue_get_tx_queue(rt2x00dev, queue_idx);
|
|
struct queue_entry_priv_pci *entry_priv;
|
|
struct queue_entry *entry;
|
|
struct txdone_entry_desc txdesc;
|
|
u32 word;
|
|
|
|
while (!rt2x00queue_empty(queue)) {
|
|
entry = rt2x00queue_get_entry(queue, Q_INDEX_DONE);
|
|
entry_priv = entry->priv_data;
|
|
rt2x00_desc_read(entry_priv->desc, 0, &word);
|
|
|
|
if (rt2x00_get_field32(word, TXD_W0_OWNER_NIC) ||
|
|
!rt2x00_get_field32(word, TXD_W0_VALID))
|
|
break;
|
|
|
|
/*
|
|
* Obtain the status about this packet.
|
|
*/
|
|
txdesc.flags = 0;
|
|
switch (rt2x00_get_field32(word, TXD_W0_RESULT)) {
|
|
case 0: /* Success */
|
|
case 1: /* Success with retry */
|
|
__set_bit(TXDONE_SUCCESS, &txdesc.flags);
|
|
break;
|
|
case 2: /* Failure, excessive retries */
|
|
__set_bit(TXDONE_EXCESSIVE_RETRY, &txdesc.flags);
|
|
/* Don't break, this is a failed frame! */
|
|
default: /* Failure */
|
|
__set_bit(TXDONE_FAILURE, &txdesc.flags);
|
|
}
|
|
txdesc.retry = rt2x00_get_field32(word, TXD_W0_RETRY_COUNT);
|
|
|
|
rt2x00lib_txdone(entry, &txdesc);
|
|
}
|
|
}
|
|
|
|
static inline void rt2400pci_enable_interrupt(struct rt2x00_dev *rt2x00dev,
|
|
struct rt2x00_field32 irq_field)
|
|
{
|
|
u32 reg;
|
|
|
|
/*
|
|
* Enable a single interrupt. The interrupt mask register
|
|
* access needs locking.
|
|
*/
|
|
spin_lock_irq(&rt2x00dev->irqmask_lock);
|
|
|
|
rt2x00pci_register_read(rt2x00dev, CSR8, ®);
|
|
rt2x00_set_field32(®, irq_field, 0);
|
|
rt2x00pci_register_write(rt2x00dev, CSR8, reg);
|
|
|
|
spin_unlock_irq(&rt2x00dev->irqmask_lock);
|
|
}
|
|
|
|
static void rt2400pci_txstatus_tasklet(unsigned long data)
|
|
{
|
|
struct rt2x00_dev *rt2x00dev = (struct rt2x00_dev *)data;
|
|
u32 reg;
|
|
|
|
/*
|
|
* Handle all tx queues.
|
|
*/
|
|
rt2400pci_txdone(rt2x00dev, QID_ATIM);
|
|
rt2400pci_txdone(rt2x00dev, QID_AC_VO);
|
|
rt2400pci_txdone(rt2x00dev, QID_AC_VI);
|
|
|
|
/*
|
|
* Enable all TXDONE interrupts again.
|
|
*/
|
|
if (test_bit(DEVICE_STATE_ENABLED_RADIO, &rt2x00dev->flags)) {
|
|
spin_lock_irq(&rt2x00dev->irqmask_lock);
|
|
|
|
rt2x00pci_register_read(rt2x00dev, CSR8, ®);
|
|
rt2x00_set_field32(®, CSR8_TXDONE_TXRING, 0);
|
|
rt2x00_set_field32(®, CSR8_TXDONE_ATIMRING, 0);
|
|
rt2x00_set_field32(®, CSR8_TXDONE_PRIORING, 0);
|
|
rt2x00pci_register_write(rt2x00dev, CSR8, reg);
|
|
|
|
spin_unlock_irq(&rt2x00dev->irqmask_lock);
|
|
}
|
|
}
|
|
|
|
static void rt2400pci_tbtt_tasklet(unsigned long data)
|
|
{
|
|
struct rt2x00_dev *rt2x00dev = (struct rt2x00_dev *)data;
|
|
rt2x00lib_beacondone(rt2x00dev);
|
|
if (test_bit(DEVICE_STATE_ENABLED_RADIO, &rt2x00dev->flags))
|
|
rt2400pci_enable_interrupt(rt2x00dev, CSR8_TBCN_EXPIRE);
|
|
}
|
|
|
|
static void rt2400pci_rxdone_tasklet(unsigned long data)
|
|
{
|
|
struct rt2x00_dev *rt2x00dev = (struct rt2x00_dev *)data;
|
|
if (rt2x00pci_rxdone(rt2x00dev))
|
|
tasklet_schedule(&rt2x00dev->rxdone_tasklet);
|
|
else if (test_bit(DEVICE_STATE_ENABLED_RADIO, &rt2x00dev->flags))
|
|
rt2400pci_enable_interrupt(rt2x00dev, CSR8_RXDONE);
|
|
}
|
|
|
|
static irqreturn_t rt2400pci_interrupt(int irq, void *dev_instance)
|
|
{
|
|
struct rt2x00_dev *rt2x00dev = dev_instance;
|
|
u32 reg, mask;
|
|
|
|
/*
|
|
* Get the interrupt sources & saved to local variable.
|
|
* Write register value back to clear pending interrupts.
|
|
*/
|
|
rt2x00pci_register_read(rt2x00dev, CSR7, ®);
|
|
rt2x00pci_register_write(rt2x00dev, CSR7, reg);
|
|
|
|
if (!reg)
|
|
return IRQ_NONE;
|
|
|
|
if (!test_bit(DEVICE_STATE_ENABLED_RADIO, &rt2x00dev->flags))
|
|
return IRQ_HANDLED;
|
|
|
|
mask = reg;
|
|
|
|
/*
|
|
* Schedule tasklets for interrupt handling.
|
|
*/
|
|
if (rt2x00_get_field32(reg, CSR7_TBCN_EXPIRE))
|
|
tasklet_hi_schedule(&rt2x00dev->tbtt_tasklet);
|
|
|
|
if (rt2x00_get_field32(reg, CSR7_RXDONE))
|
|
tasklet_schedule(&rt2x00dev->rxdone_tasklet);
|
|
|
|
if (rt2x00_get_field32(reg, CSR7_TXDONE_ATIMRING) ||
|
|
rt2x00_get_field32(reg, CSR7_TXDONE_PRIORING) ||
|
|
rt2x00_get_field32(reg, CSR7_TXDONE_TXRING)) {
|
|
tasklet_schedule(&rt2x00dev->txstatus_tasklet);
|
|
/*
|
|
* Mask out all txdone interrupts.
|
|
*/
|
|
rt2x00_set_field32(&mask, CSR8_TXDONE_TXRING, 1);
|
|
rt2x00_set_field32(&mask, CSR8_TXDONE_ATIMRING, 1);
|
|
rt2x00_set_field32(&mask, CSR8_TXDONE_PRIORING, 1);
|
|
}
|
|
|
|
/*
|
|
* Disable all interrupts for which a tasklet was scheduled right now,
|
|
* the tasklet will reenable the appropriate interrupts.
|
|
*/
|
|
spin_lock(&rt2x00dev->irqmask_lock);
|
|
|
|
rt2x00pci_register_read(rt2x00dev, CSR8, ®);
|
|
reg |= mask;
|
|
rt2x00pci_register_write(rt2x00dev, CSR8, reg);
|
|
|
|
spin_unlock(&rt2x00dev->irqmask_lock);
|
|
|
|
|
|
|
|
return IRQ_HANDLED;
|
|
}
|
|
|
|
/*
|
|
* Device probe functions.
|
|
*/
|
|
static int rt2400pci_validate_eeprom(struct rt2x00_dev *rt2x00dev)
|
|
{
|
|
struct eeprom_93cx6 eeprom;
|
|
u32 reg;
|
|
u16 word;
|
|
u8 *mac;
|
|
|
|
rt2x00pci_register_read(rt2x00dev, CSR21, ®);
|
|
|
|
eeprom.data = rt2x00dev;
|
|
eeprom.register_read = rt2400pci_eepromregister_read;
|
|
eeprom.register_write = rt2400pci_eepromregister_write;
|
|
eeprom.width = rt2x00_get_field32(reg, CSR21_TYPE_93C46) ?
|
|
PCI_EEPROM_WIDTH_93C46 : PCI_EEPROM_WIDTH_93C66;
|
|
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));
|
|
|
|
/*
|
|
* Start validation of the data that has been read.
|
|
*/
|
|
mac = rt2x00_eeprom_addr(rt2x00dev, EEPROM_MAC_ADDR_0);
|
|
if (!is_valid_ether_addr(mac)) {
|
|
random_ether_addr(mac);
|
|
EEPROM(rt2x00dev, "MAC: %pM\n", mac);
|
|
}
|
|
|
|
rt2x00_eeprom_read(rt2x00dev, EEPROM_ANTENNA, &word);
|
|
if (word == 0xffff) {
|
|
ERROR(rt2x00dev, "Invalid EEPROM data detected.\n");
|
|
return -EINVAL;
|
|
}
|
|
|
|
return 0;
|
|
}
|
|
|
|
static int rt2400pci_init_eeprom(struct rt2x00_dev *rt2x00dev)
|
|
{
|
|
u32 reg;
|
|
u16 value;
|
|
u16 eeprom;
|
|
|
|
/*
|
|
* Read EEPROM word for configuration.
|
|
*/
|
|
rt2x00_eeprom_read(rt2x00dev, EEPROM_ANTENNA, &eeprom);
|
|
|
|
/*
|
|
* Identify RF chipset.
|
|
*/
|
|
value = rt2x00_get_field16(eeprom, EEPROM_ANTENNA_RF_TYPE);
|
|
rt2x00pci_register_read(rt2x00dev, CSR0, ®);
|
|
rt2x00_set_chip(rt2x00dev, RT2460, value,
|
|
rt2x00_get_field32(reg, CSR0_REVISION));
|
|
|
|
if (!rt2x00_rf(rt2x00dev, RF2420) && !rt2x00_rf(rt2x00dev, RF2421)) {
|
|
ERROR(rt2x00dev, "Invalid RF chipset detected.\n");
|
|
return -ENODEV;
|
|
}
|
|
|
|
/*
|
|
* Identify default antenna configuration.
|
|
*/
|
|
rt2x00dev->default_ant.tx =
|
|
rt2x00_get_field16(eeprom, EEPROM_ANTENNA_TX_DEFAULT);
|
|
rt2x00dev->default_ant.rx =
|
|
rt2x00_get_field16(eeprom, EEPROM_ANTENNA_RX_DEFAULT);
|
|
|
|
/*
|
|
* When the eeprom indicates SW_DIVERSITY use HW_DIVERSITY instead.
|
|
* I am not 100% sure about this, but the legacy drivers do not
|
|
* indicate antenna swapping in software is required when
|
|
* diversity is enabled.
|
|
*/
|
|
if (rt2x00dev->default_ant.tx == ANTENNA_SW_DIVERSITY)
|
|
rt2x00dev->default_ant.tx = ANTENNA_HW_DIVERSITY;
|
|
if (rt2x00dev->default_ant.rx == ANTENNA_SW_DIVERSITY)
|
|
rt2x00dev->default_ant.rx = ANTENNA_HW_DIVERSITY;
|
|
|
|
/*
|
|
* Store led mode, for correct led behaviour.
|
|
*/
|
|
#ifdef CONFIG_RT2X00_LIB_LEDS
|
|
value = rt2x00_get_field16(eeprom, EEPROM_ANTENNA_LED_MODE);
|
|
|
|
rt2400pci_init_led(rt2x00dev, &rt2x00dev->led_radio, LED_TYPE_RADIO);
|
|
if (value == LED_MODE_TXRX_ACTIVITY ||
|
|
value == LED_MODE_DEFAULT ||
|
|
value == LED_MODE_ASUS)
|
|
rt2400pci_init_led(rt2x00dev, &rt2x00dev->led_qual,
|
|
LED_TYPE_ACTIVITY);
|
|
#endif /* CONFIG_RT2X00_LIB_LEDS */
|
|
|
|
/*
|
|
* Detect if this device has an hardware controlled radio.
|
|
*/
|
|
if (rt2x00_get_field16(eeprom, EEPROM_ANTENNA_HARDWARE_RADIO))
|
|
__set_bit(CAPABILITY_HW_BUTTON, &rt2x00dev->cap_flags);
|
|
|
|
/*
|
|
* Check if the BBP tuning should be enabled.
|
|
*/
|
|
if (rt2x00_get_field16(eeprom, EEPROM_ANTENNA_RX_AGCVGC_TUNING))
|
|
__set_bit(CAPABILITY_LINK_TUNING, &rt2x00dev->cap_flags);
|
|
|
|
return 0;
|
|
}
|
|
|
|
/*
|
|
* RF value list for RF2420 & RF2421
|
|
* Supports: 2.4 GHz
|
|
*/
|
|
static const struct rf_channel rf_vals_b[] = {
|
|
{ 1, 0x00022058, 0x000c1fda, 0x00000101, 0 },
|
|
{ 2, 0x00022058, 0x000c1fee, 0x00000101, 0 },
|
|
{ 3, 0x00022058, 0x000c2002, 0x00000101, 0 },
|
|
{ 4, 0x00022058, 0x000c2016, 0x00000101, 0 },
|
|
{ 5, 0x00022058, 0x000c202a, 0x00000101, 0 },
|
|
{ 6, 0x00022058, 0x000c203e, 0x00000101, 0 },
|
|
{ 7, 0x00022058, 0x000c2052, 0x00000101, 0 },
|
|
{ 8, 0x00022058, 0x000c2066, 0x00000101, 0 },
|
|
{ 9, 0x00022058, 0x000c207a, 0x00000101, 0 },
|
|
{ 10, 0x00022058, 0x000c208e, 0x00000101, 0 },
|
|
{ 11, 0x00022058, 0x000c20a2, 0x00000101, 0 },
|
|
{ 12, 0x00022058, 0x000c20b6, 0x00000101, 0 },
|
|
{ 13, 0x00022058, 0x000c20ca, 0x00000101, 0 },
|
|
{ 14, 0x00022058, 0x000c20fa, 0x00000101, 0 },
|
|
};
|
|
|
|
static int rt2400pci_probe_hw_mode(struct rt2x00_dev *rt2x00dev)
|
|
{
|
|
struct hw_mode_spec *spec = &rt2x00dev->spec;
|
|
struct channel_info *info;
|
|
char *tx_power;
|
|
unsigned int i;
|
|
|
|
/*
|
|
* Initialize all hw fields.
|
|
*/
|
|
rt2x00dev->hw->flags = IEEE80211_HW_HOST_BROADCAST_PS_BUFFERING |
|
|
IEEE80211_HW_SIGNAL_DBM |
|
|
IEEE80211_HW_SUPPORTS_PS |
|
|
IEEE80211_HW_PS_NULLFUNC_STACK;
|
|
|
|
SET_IEEE80211_DEV(rt2x00dev->hw, rt2x00dev->dev);
|
|
SET_IEEE80211_PERM_ADDR(rt2x00dev->hw,
|
|
rt2x00_eeprom_addr(rt2x00dev,
|
|
EEPROM_MAC_ADDR_0));
|
|
|
|
/*
|
|
* Initialize hw_mode information.
|
|
*/
|
|
spec->supported_bands = SUPPORT_BAND_2GHZ;
|
|
spec->supported_rates = SUPPORT_RATE_CCK;
|
|
|
|
spec->num_channels = ARRAY_SIZE(rf_vals_b);
|
|
spec->channels = rf_vals_b;
|
|
|
|
/*
|
|
* Create channel information array
|
|
*/
|
|
info = kcalloc(spec->num_channels, sizeof(*info), GFP_KERNEL);
|
|
if (!info)
|
|
return -ENOMEM;
|
|
|
|
spec->channels_info = info;
|
|
|
|
tx_power = rt2x00_eeprom_addr(rt2x00dev, EEPROM_TXPOWER_START);
|
|
for (i = 0; i < 14; i++) {
|
|
info[i].max_power = TXPOWER_FROM_DEV(MAX_TXPOWER);
|
|
info[i].default_power1 = TXPOWER_FROM_DEV(tx_power[i]);
|
|
}
|
|
|
|
return 0;
|
|
}
|
|
|
|
static int rt2400pci_probe_hw(struct rt2x00_dev *rt2x00dev)
|
|
{
|
|
int retval;
|
|
|
|
/*
|
|
* Allocate eeprom data.
|
|
*/
|
|
retval = rt2400pci_validate_eeprom(rt2x00dev);
|
|
if (retval)
|
|
return retval;
|
|
|
|
retval = rt2400pci_init_eeprom(rt2x00dev);
|
|
if (retval)
|
|
return retval;
|
|
|
|
/*
|
|
* Initialize hw specifications.
|
|
*/
|
|
retval = rt2400pci_probe_hw_mode(rt2x00dev);
|
|
if (retval)
|
|
return retval;
|
|
|
|
/*
|
|
* This device requires the atim queue and DMA-mapped skbs.
|
|
*/
|
|
__set_bit(REQUIRE_ATIM_QUEUE, &rt2x00dev->cap_flags);
|
|
__set_bit(REQUIRE_DMA, &rt2x00dev->cap_flags);
|
|
__set_bit(REQUIRE_SW_SEQNO, &rt2x00dev->cap_flags);
|
|
|
|
/*
|
|
* Set the rssi offset.
|
|
*/
|
|
rt2x00dev->rssi_offset = DEFAULT_RSSI_OFFSET;
|
|
|
|
return 0;
|
|
}
|
|
|
|
/*
|
|
* IEEE80211 stack callback functions.
|
|
*/
|
|
static int rt2400pci_conf_tx(struct ieee80211_hw *hw,
|
|
struct ieee80211_vif *vif, u16 queue,
|
|
const struct ieee80211_tx_queue_params *params)
|
|
{
|
|
struct rt2x00_dev *rt2x00dev = hw->priv;
|
|
|
|
/*
|
|
* We don't support variating cw_min and cw_max variables
|
|
* per queue. So by default we only configure the TX queue,
|
|
* and ignore all other configurations.
|
|
*/
|
|
if (queue != 0)
|
|
return -EINVAL;
|
|
|
|
if (rt2x00mac_conf_tx(hw, vif, queue, params))
|
|
return -EINVAL;
|
|
|
|
/*
|
|
* Write configuration to register.
|
|
*/
|
|
rt2400pci_config_cw(rt2x00dev,
|
|
rt2x00dev->tx->cw_min, rt2x00dev->tx->cw_max);
|
|
|
|
return 0;
|
|
}
|
|
|
|
static u64 rt2400pci_get_tsf(struct ieee80211_hw *hw,
|
|
struct ieee80211_vif *vif)
|
|
{
|
|
struct rt2x00_dev *rt2x00dev = hw->priv;
|
|
u64 tsf;
|
|
u32 reg;
|
|
|
|
rt2x00pci_register_read(rt2x00dev, CSR17, ®);
|
|
tsf = (u64) rt2x00_get_field32(reg, CSR17_HIGH_TSFTIMER) << 32;
|
|
rt2x00pci_register_read(rt2x00dev, CSR16, ®);
|
|
tsf |= rt2x00_get_field32(reg, CSR16_LOW_TSFTIMER);
|
|
|
|
return tsf;
|
|
}
|
|
|
|
static int rt2400pci_tx_last_beacon(struct ieee80211_hw *hw)
|
|
{
|
|
struct rt2x00_dev *rt2x00dev = hw->priv;
|
|
u32 reg;
|
|
|
|
rt2x00pci_register_read(rt2x00dev, CSR15, ®);
|
|
return rt2x00_get_field32(reg, CSR15_BEACON_SENT);
|
|
}
|
|
|
|
static const struct ieee80211_ops rt2400pci_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,
|
|
.sw_scan_start = rt2x00mac_sw_scan_start,
|
|
.sw_scan_complete = rt2x00mac_sw_scan_complete,
|
|
.get_stats = rt2x00mac_get_stats,
|
|
.bss_info_changed = rt2x00mac_bss_info_changed,
|
|
.conf_tx = rt2400pci_conf_tx,
|
|
.get_tsf = rt2400pci_get_tsf,
|
|
.tx_last_beacon = rt2400pci_tx_last_beacon,
|
|
.rfkill_poll = rt2x00mac_rfkill_poll,
|
|
.flush = rt2x00mac_flush,
|
|
.set_antenna = rt2x00mac_set_antenna,
|
|
.get_antenna = rt2x00mac_get_antenna,
|
|
.get_ringparam = rt2x00mac_get_ringparam,
|
|
.tx_frames_pending = rt2x00mac_tx_frames_pending,
|
|
};
|
|
|
|
static const struct rt2x00lib_ops rt2400pci_rt2x00_ops = {
|
|
.irq_handler = rt2400pci_interrupt,
|
|
.txstatus_tasklet = rt2400pci_txstatus_tasklet,
|
|
.tbtt_tasklet = rt2400pci_tbtt_tasklet,
|
|
.rxdone_tasklet = rt2400pci_rxdone_tasklet,
|
|
.probe_hw = rt2400pci_probe_hw,
|
|
.initialize = rt2x00pci_initialize,
|
|
.uninitialize = rt2x00pci_uninitialize,
|
|
.get_entry_state = rt2400pci_get_entry_state,
|
|
.clear_entry = rt2400pci_clear_entry,
|
|
.set_device_state = rt2400pci_set_device_state,
|
|
.rfkill_poll = rt2400pci_rfkill_poll,
|
|
.link_stats = rt2400pci_link_stats,
|
|
.reset_tuner = rt2400pci_reset_tuner,
|
|
.link_tuner = rt2400pci_link_tuner,
|
|
.start_queue = rt2400pci_start_queue,
|
|
.kick_queue = rt2400pci_kick_queue,
|
|
.stop_queue = rt2400pci_stop_queue,
|
|
.flush_queue = rt2x00pci_flush_queue,
|
|
.write_tx_desc = rt2400pci_write_tx_desc,
|
|
.write_beacon = rt2400pci_write_beacon,
|
|
.fill_rxdone = rt2400pci_fill_rxdone,
|
|
.config_filter = rt2400pci_config_filter,
|
|
.config_intf = rt2400pci_config_intf,
|
|
.config_erp = rt2400pci_config_erp,
|
|
.config_ant = rt2400pci_config_ant,
|
|
.config = rt2400pci_config,
|
|
};
|
|
|
|
static const struct data_queue_desc rt2400pci_queue_rx = {
|
|
.entry_num = 24,
|
|
.data_size = DATA_FRAME_SIZE,
|
|
.desc_size = RXD_DESC_SIZE,
|
|
.priv_size = sizeof(struct queue_entry_priv_pci),
|
|
};
|
|
|
|
static const struct data_queue_desc rt2400pci_queue_tx = {
|
|
.entry_num = 24,
|
|
.data_size = DATA_FRAME_SIZE,
|
|
.desc_size = TXD_DESC_SIZE,
|
|
.priv_size = sizeof(struct queue_entry_priv_pci),
|
|
};
|
|
|
|
static const struct data_queue_desc rt2400pci_queue_bcn = {
|
|
.entry_num = 1,
|
|
.data_size = MGMT_FRAME_SIZE,
|
|
.desc_size = TXD_DESC_SIZE,
|
|
.priv_size = sizeof(struct queue_entry_priv_pci),
|
|
};
|
|
|
|
static const struct data_queue_desc rt2400pci_queue_atim = {
|
|
.entry_num = 8,
|
|
.data_size = DATA_FRAME_SIZE,
|
|
.desc_size = TXD_DESC_SIZE,
|
|
.priv_size = sizeof(struct queue_entry_priv_pci),
|
|
};
|
|
|
|
static const struct rt2x00_ops rt2400pci_ops = {
|
|
.name = KBUILD_MODNAME,
|
|
.max_sta_intf = 1,
|
|
.max_ap_intf = 1,
|
|
.eeprom_size = EEPROM_SIZE,
|
|
.rf_size = RF_SIZE,
|
|
.tx_queues = NUM_TX_QUEUES,
|
|
.extra_tx_headroom = 0,
|
|
.rx = &rt2400pci_queue_rx,
|
|
.tx = &rt2400pci_queue_tx,
|
|
.bcn = &rt2400pci_queue_bcn,
|
|
.atim = &rt2400pci_queue_atim,
|
|
.lib = &rt2400pci_rt2x00_ops,
|
|
.hw = &rt2400pci_mac80211_ops,
|
|
#ifdef CONFIG_RT2X00_LIB_DEBUGFS
|
|
.debugfs = &rt2400pci_rt2x00debug,
|
|
#endif /* CONFIG_RT2X00_LIB_DEBUGFS */
|
|
};
|
|
|
|
/*
|
|
* RT2400pci module information.
|
|
*/
|
|
static DEFINE_PCI_DEVICE_TABLE(rt2400pci_device_table) = {
|
|
{ PCI_DEVICE(0x1814, 0x0101) },
|
|
{ 0, }
|
|
};
|
|
|
|
|
|
MODULE_AUTHOR(DRV_PROJECT);
|
|
MODULE_VERSION(DRV_VERSION);
|
|
MODULE_DESCRIPTION("Ralink RT2400 PCI & PCMCIA Wireless LAN driver.");
|
|
MODULE_SUPPORTED_DEVICE("Ralink RT2460 PCI & PCMCIA chipset based cards");
|
|
MODULE_DEVICE_TABLE(pci, rt2400pci_device_table);
|
|
MODULE_LICENSE("GPL");
|
|
|
|
static int rt2400pci_probe(struct pci_dev *pci_dev,
|
|
const struct pci_device_id *id)
|
|
{
|
|
return rt2x00pci_probe(pci_dev, &rt2400pci_ops);
|
|
}
|
|
|
|
static struct pci_driver rt2400pci_driver = {
|
|
.name = KBUILD_MODNAME,
|
|
.id_table = rt2400pci_device_table,
|
|
.probe = rt2400pci_probe,
|
|
.remove = __devexit_p(rt2x00pci_remove),
|
|
.suspend = rt2x00pci_suspend,
|
|
.resume = rt2x00pci_resume,
|
|
};
|
|
|
|
static int __init rt2400pci_init(void)
|
|
{
|
|
return pci_register_driver(&rt2400pci_driver);
|
|
}
|
|
|
|
static void __exit rt2400pci_exit(void)
|
|
{
|
|
pci_unregister_driver(&rt2400pci_driver);
|
|
}
|
|
|
|
module_init(rt2400pci_init);
|
|
module_exit(rt2400pci_exit);
|