forked from Minki/linux
61667d8d5b
This adds 2 new states which both are used to toggle the RX. These new states are required for usage inside the link tuner thread, because the normal RX toggling will stop the link tuner thread. While it is possible that the link tuner thread itself is the caller of the RX toggle (when using software antenna diversity). Signed-off-by: Ivo van Doorn <IvDoorn@gmail.com> Signed-off-by: John W. Linville <linville@tuxdriver.com>
1612 lines
45 KiB
C
1612 lines
45 KiB
C
/*
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Copyright (C) 2004 - 2007 rt2x00 SourceForge Project
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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 "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 attampt. 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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static u32 rt2400pci_bbp_check(struct rt2x00_dev *rt2x00dev)
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{
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u32 reg;
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unsigned int i;
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for (i = 0; i < REGISTER_BUSY_COUNT; i++) {
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rt2x00pci_register_read(rt2x00dev, BBPCSR, ®);
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if (!rt2x00_get_field32(reg, BBPCSR_BUSY))
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break;
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udelay(REGISTER_BUSY_DELAY);
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}
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return reg;
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}
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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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/*
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* Wait until the BBP becomes ready.
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*/
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reg = rt2400pci_bbp_check(rt2x00dev);
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if (rt2x00_get_field32(reg, BBPCSR_BUSY)) {
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ERROR(rt2x00dev, "BBPCSR register busy. Write failed.\n");
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return;
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}
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/*
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* Write the data into the BBP.
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*/
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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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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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/*
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* Wait until the BBP becomes ready.
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*/
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reg = rt2400pci_bbp_check(rt2x00dev);
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if (rt2x00_get_field32(reg, BBPCSR_BUSY)) {
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ERROR(rt2x00dev, "BBPCSR register busy. Read failed.\n");
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return;
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}
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/*
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* Write the request into the BBP.
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*/
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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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/*
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* Wait until the BBP becomes ready.
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*/
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reg = rt2400pci_bbp_check(rt2x00dev);
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if (rt2x00_get_field32(reg, BBPCSR_BUSY)) {
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ERROR(rt2x00dev, "BBPCSR register busy. Read failed.\n");
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*value = 0xff;
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return;
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}
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*value = rt2x00_get_field32(reg, BBPCSR_VALUE);
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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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unsigned int i;
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if (!word)
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return;
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for (i = 0; i < REGISTER_BUSY_COUNT; i++) {
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rt2x00pci_register_read(rt2x00dev, RFCSR, ®);
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if (!rt2x00_get_field32(reg, RFCSR_BUSY))
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goto rf_write;
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udelay(REGISTER_BUSY_DELAY);
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}
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ERROR(rt2x00dev, "RFCSR register busy. Write failed.\n");
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return;
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rf_write:
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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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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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#define CSR_OFFSET(__word) ( CSR_REG_BASE + ((__word) * sizeof(u32)) )
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static void rt2400pci_read_csr(struct rt2x00_dev *rt2x00dev,
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const unsigned int word, u32 *data)
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{
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rt2x00pci_register_read(rt2x00dev, CSR_OFFSET(word), data);
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}
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static void rt2400pci_write_csr(struct rt2x00_dev *rt2x00dev,
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const unsigned int word, u32 data)
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{
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rt2x00pci_register_write(rt2x00dev, CSR_OFFSET(word), data);
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}
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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 = rt2400pci_read_csr,
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.write = rt2400pci_write_csr,
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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_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_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_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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#ifdef CONFIG_RT2400PCI_RFKILL
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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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#else
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#define rt2400pci_rfkill_poll NULL
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#endif /* CONFIG_RT2400PCI_RFKILL */
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/*
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* Configuration handlers.
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*/
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static void rt2400pci_config_mac_addr(struct rt2x00_dev *rt2x00dev,
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__le32 *mac)
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{
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rt2x00pci_register_multiwrite(rt2x00dev, CSR3, mac,
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(2 * sizeof(__le32)));
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}
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static void rt2400pci_config_bssid(struct rt2x00_dev *rt2x00dev,
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__le32 *bssid)
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{
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rt2x00pci_register_multiwrite(rt2x00dev, CSR5, bssid,
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(2 * sizeof(__le32)));
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}
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static void rt2400pci_config_type(struct rt2x00_dev *rt2x00dev, const int type,
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const int tsf_sync)
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{
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u32 reg;
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rt2x00pci_register_write(rt2x00dev, CSR14, 0);
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/*
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* Enable beacon config
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*/
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rt2x00pci_register_read(rt2x00dev, BCNCSR1, ®);
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rt2x00_set_field32(®, BCNCSR1_PRELOAD,
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PREAMBLE + get_duration(IEEE80211_HEADER, 20));
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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_COUNT, 1);
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rt2x00_set_field32(®, CSR14_TBCN, (tsf_sync == TSF_SYNC_BEACON));
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rt2x00_set_field32(®, CSR14_BEACON_GEN, 0);
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rt2x00_set_field32(®, CSR14_TSF_SYNC, tsf_sync);
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rt2x00pci_register_write(rt2x00dev, CSR14, reg);
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}
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static void rt2400pci_config_preamble(struct rt2x00_dev *rt2x00dev,
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const int short_preamble,
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const int ack_timeout,
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const int ack_consume_time)
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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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preamble_mask = short_preamble << 3;
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rt2x00pci_register_read(rt2x00dev, TXCSR1, ®);
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rt2x00_set_field32(®, TXCSR1_ACK_TIMEOUT, ack_timeout);
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rt2x00_set_field32(®, TXCSR1_ACK_CONSUME_TIME, ack_consume_time);
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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 | preamble_mask);
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rt2x00_set_field32(®, ARCSR2_SERVICE, 0x04);
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rt2x00_set_field32(®, ARCSR2_LENGTH, 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, 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, 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, get_duration(ACK_SIZE, 110));
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rt2x00pci_register_write(rt2x00dev, ARCSR5, reg);
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}
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static void rt2400pci_config_phymode(struct rt2x00_dev *rt2x00dev,
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const int basic_rate_mask)
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{
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rt2x00pci_register_write(rt2x00dev, ARCSR1, basic_rate_mask);
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}
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static void rt2400pci_config_channel(struct rt2x00_dev *rt2x00dev,
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struct rf_channel *rf)
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{
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/*
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* Switch on tuning bits.
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*/
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rt2x00_set_field32(&rf->rf1, RF1_TUNER, 1);
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rt2x00_set_field32(&rf->rf3, RF3_TUNER, 1);
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rt2400pci_rf_write(rt2x00dev, 1, rf->rf1);
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rt2400pci_rf_write(rt2x00dev, 2, rf->rf2);
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rt2400pci_rf_write(rt2x00dev, 3, rf->rf3);
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/*
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* RF2420 chipset don't need any additional actions.
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*/
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if (rt2x00_rf(&rt2x00dev->chip, RF2420))
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return;
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/*
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* For the RT2421 chipsets we need to write an invalid
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* reference clock rate to activate auto_tune.
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* After that we set the value back to the correct channel.
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*/
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rt2400pci_rf_write(rt2x00dev, 1, rf->rf1);
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rt2400pci_rf_write(rt2x00dev, 2, 0x000c2a32);
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rt2400pci_rf_write(rt2x00dev, 3, rf->rf3);
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msleep(1);
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rt2400pci_rf_write(rt2x00dev, 1, rf->rf1);
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rt2400pci_rf_write(rt2x00dev, 2, rf->rf2);
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rt2400pci_rf_write(rt2x00dev, 3, rf->rf3);
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msleep(1);
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/*
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* Switch off tuning bits.
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*/
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rt2x00_set_field32(&rf->rf1, RF1_TUNER, 0);
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rt2x00_set_field32(&rf->rf3, RF3_TUNER, 0);
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rt2400pci_rf_write(rt2x00dev, 1, rf->rf1);
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rt2400pci_rf_write(rt2x00dev, 3, rf->rf3);
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/*
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* Clear false CRC during channel switch.
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*/
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rt2x00pci_register_read(rt2x00dev, CNT0, &rf->rf1);
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}
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static void rt2400pci_config_txpower(struct rt2x00_dev *rt2x00dev, int txpower)
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{
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rt2400pci_bbp_write(rt2x00dev, 3, TXPOWER_TO_DEV(txpower));
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}
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static void rt2400pci_config_antenna(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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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);
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break;
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case ANTENNA_A:
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rt2x00_set_field8(&r1, BBP_R1_TX_ANTENNA, 0);
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break;
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case ANTENNA_SW_DIVERSITY:
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/*
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* NOTE: We should never come here because rt2x00lib is
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* supposed to catch this and send us the correct antenna
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* explicitely. However we are nog going to bug about this.
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* Instead, just default to antenna B.
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*/
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case ANTENNA_B:
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rt2x00_set_field8(&r1, BBP_R1_TX_ANTENNA, 2);
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break;
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}
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/*
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* Configure the RX antenna.
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*/
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switch (ant->rx) {
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case ANTENNA_HW_DIVERSITY:
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rt2x00_set_field8(&r4, BBP_R4_RX_ANTENNA, 1);
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break;
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case ANTENNA_A:
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rt2x00_set_field8(&r4, BBP_R4_RX_ANTENNA, 0);
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break;
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case ANTENNA_SW_DIVERSITY:
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/*
|
|
* NOTE: We should never come here because rt2x00lib is
|
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* supposed to catch this and send us the correct antenna
|
|
* explicitely. However we are nog going to bug about this.
|
|
* Instead, just default to antenna B.
|
|
*/
|
|
case ANTENNA_B:
|
|
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_duration(struct rt2x00_dev *rt2x00dev,
|
|
struct rt2x00lib_conf *libconf)
|
|
{
|
|
u32 reg;
|
|
|
|
rt2x00pci_register_read(rt2x00dev, CSR11, ®);
|
|
rt2x00_set_field32(®, CSR11_SLOT_TIME, libconf->slot_time);
|
|
rt2x00pci_register_write(rt2x00dev, CSR11, reg);
|
|
|
|
rt2x00pci_register_read(rt2x00dev, CSR18, ®);
|
|
rt2x00_set_field32(®, CSR18_SIFS, libconf->sifs);
|
|
rt2x00_set_field32(®, CSR18_PIFS, libconf->pifs);
|
|
rt2x00pci_register_write(rt2x00dev, CSR18, reg);
|
|
|
|
rt2x00pci_register_read(rt2x00dev, CSR19, ®);
|
|
rt2x00_set_field32(®, CSR19_DIFS, libconf->difs);
|
|
rt2x00_set_field32(®, CSR19_EIFS, libconf->eifs);
|
|
rt2x00pci_register_write(rt2x00dev, CSR19, reg);
|
|
|
|
rt2x00pci_register_read(rt2x00dev, TXCSR1, ®);
|
|
rt2x00_set_field32(®, TXCSR1_TSF_OFFSET, IEEE80211_HEADER);
|
|
rt2x00_set_field32(®, TXCSR1_AUTORESPONDER, 1);
|
|
rt2x00pci_register_write(rt2x00dev, TXCSR1, reg);
|
|
|
|
rt2x00pci_register_read(rt2x00dev, CSR12, ®);
|
|
rt2x00_set_field32(®, CSR12_BEACON_INTERVAL,
|
|
libconf->conf->beacon_int * 16);
|
|
rt2x00_set_field32(®, CSR12_CFP_MAX_DURATION,
|
|
libconf->conf->beacon_int * 16);
|
|
rt2x00pci_register_write(rt2x00dev, CSR12, reg);
|
|
}
|
|
|
|
static void rt2400pci_config(struct rt2x00_dev *rt2x00dev,
|
|
const unsigned int flags,
|
|
struct rt2x00lib_conf *libconf)
|
|
{
|
|
if (flags & CONFIG_UPDATE_PHYMODE)
|
|
rt2400pci_config_phymode(rt2x00dev, libconf->basic_rates);
|
|
if (flags & CONFIG_UPDATE_CHANNEL)
|
|
rt2400pci_config_channel(rt2x00dev, &libconf->rf);
|
|
if (flags & CONFIG_UPDATE_TXPOWER)
|
|
rt2400pci_config_txpower(rt2x00dev,
|
|
libconf->conf->power_level);
|
|
if (flags & CONFIG_UPDATE_ANTENNA)
|
|
rt2400pci_config_antenna(rt2x00dev, &libconf->ant);
|
|
if (flags & (CONFIG_UPDATE_SLOT_TIME | CONFIG_UPDATE_BEACON_INT))
|
|
rt2400pci_config_duration(rt2x00dev, libconf);
|
|
}
|
|
|
|
static void rt2400pci_config_cw(struct rt2x00_dev *rt2x00dev,
|
|
struct ieee80211_tx_queue_params *params)
|
|
{
|
|
u32 reg;
|
|
|
|
rt2x00pci_register_read(rt2x00dev, CSR11, ®);
|
|
rt2x00_set_field32(®, CSR11_CWMIN, params->cw_min);
|
|
rt2x00_set_field32(®, CSR11_CWMAX, params->cw_max);
|
|
rt2x00pci_register_write(rt2x00dev, CSR11, reg);
|
|
}
|
|
|
|
/*
|
|
* LED functions.
|
|
*/
|
|
static void rt2400pci_enable_led(struct rt2x00_dev *rt2x00dev)
|
|
{
|
|
u32 reg;
|
|
|
|
rt2x00pci_register_read(rt2x00dev, LEDCSR, ®);
|
|
|
|
rt2x00_set_field32(®, LEDCSR_ON_PERIOD, 70);
|
|
rt2x00_set_field32(®, LEDCSR_OFF_PERIOD, 30);
|
|
rt2x00_set_field32(®, LEDCSR_LINK,
|
|
(rt2x00dev->led_mode != LED_MODE_ASUS));
|
|
rt2x00_set_field32(®, LEDCSR_ACTIVITY,
|
|
(rt2x00dev->led_mode != LED_MODE_TXRX_ACTIVITY));
|
|
rt2x00pci_register_write(rt2x00dev, LEDCSR, reg);
|
|
}
|
|
|
|
static void rt2400pci_disable_led(struct rt2x00_dev *rt2x00dev)
|
|
{
|
|
u32 reg;
|
|
|
|
rt2x00pci_register_read(rt2x00dev, LEDCSR, ®);
|
|
rt2x00_set_field32(®, LEDCSR_LINK, 0);
|
|
rt2x00_set_field32(®, LEDCSR_ACTIVITY, 0);
|
|
rt2x00pci_register_write(rt2x00dev, LEDCSR, 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 void rt2400pci_reset_tuner(struct rt2x00_dev *rt2x00dev)
|
|
{
|
|
rt2400pci_bbp_write(rt2x00dev, 13, 0x08);
|
|
rt2x00dev->link.vgc_level = 0x08;
|
|
}
|
|
|
|
static void rt2400pci_link_tuner(struct rt2x00_dev *rt2x00dev)
|
|
{
|
|
u8 reg;
|
|
|
|
/*
|
|
* The link tuner should not run longer then 60 seconds,
|
|
* and should run once every 2 seconds.
|
|
*/
|
|
if (rt2x00dev->link.count > 60 || !(rt2x00dev->link.count & 1))
|
|
return;
|
|
|
|
/*
|
|
* Base r13 link tuning on the false cca count.
|
|
*/
|
|
rt2400pci_bbp_read(rt2x00dev, 13, ®);
|
|
|
|
if (rt2x00dev->link.qual.false_cca > 512 && reg < 0x20) {
|
|
rt2400pci_bbp_write(rt2x00dev, 13, ++reg);
|
|
rt2x00dev->link.vgc_level = reg;
|
|
} else if (rt2x00dev->link.qual.false_cca < 100 && reg > 0x08) {
|
|
rt2400pci_bbp_write(rt2x00dev, 13, --reg);
|
|
rt2x00dev->link.vgc_level = reg;
|
|
}
|
|
}
|
|
|
|
/*
|
|
* Initialization functions.
|
|
*/
|
|
static void rt2400pci_init_rxentry(struct rt2x00_dev *rt2x00dev,
|
|
struct data_entry *entry)
|
|
{
|
|
__le32 *rxd = entry->priv;
|
|
u32 word;
|
|
|
|
rt2x00_desc_read(rxd, 2, &word);
|
|
rt2x00_set_field32(&word, RXD_W2_BUFFER_LENGTH, entry->ring->data_size);
|
|
rt2x00_desc_write(rxd, 2, word);
|
|
|
|
rt2x00_desc_read(rxd, 1, &word);
|
|
rt2x00_set_field32(&word, RXD_W1_BUFFER_ADDRESS, entry->data_dma);
|
|
rt2x00_desc_write(rxd, 1, word);
|
|
|
|
rt2x00_desc_read(rxd, 0, &word);
|
|
rt2x00_set_field32(&word, RXD_W0_OWNER_NIC, 1);
|
|
rt2x00_desc_write(rxd, 0, word);
|
|
}
|
|
|
|
static void rt2400pci_init_txentry(struct rt2x00_dev *rt2x00dev,
|
|
struct data_entry *entry)
|
|
{
|
|
__le32 *txd = entry->priv;
|
|
u32 word;
|
|
|
|
rt2x00_desc_read(txd, 1, &word);
|
|
rt2x00_set_field32(&word, TXD_W1_BUFFER_ADDRESS, entry->data_dma);
|
|
rt2x00_desc_write(txd, 1, word);
|
|
|
|
rt2x00_desc_read(txd, 2, &word);
|
|
rt2x00_set_field32(&word, TXD_W2_BUFFER_LENGTH, entry->ring->data_size);
|
|
rt2x00_desc_write(txd, 2, word);
|
|
|
|
rt2x00_desc_read(txd, 0, &word);
|
|
rt2x00_set_field32(&word, TXD_W0_VALID, 0);
|
|
rt2x00_set_field32(&word, TXD_W0_OWNER_NIC, 0);
|
|
rt2x00_desc_write(txd, 0, word);
|
|
}
|
|
|
|
static int rt2400pci_init_rings(struct rt2x00_dev *rt2x00dev)
|
|
{
|
|
u32 reg;
|
|
|
|
/*
|
|
* Initialize registers.
|
|
*/
|
|
rt2x00pci_register_read(rt2x00dev, TXCSR2, ®);
|
|
rt2x00_set_field32(®, TXCSR2_TXD_SIZE,
|
|
rt2x00dev->tx[IEEE80211_TX_QUEUE_DATA0].desc_size);
|
|
rt2x00_set_field32(®, TXCSR2_NUM_TXD,
|
|
rt2x00dev->tx[IEEE80211_TX_QUEUE_DATA1].stats.limit);
|
|
rt2x00_set_field32(®, TXCSR2_NUM_ATIM,
|
|
rt2x00dev->bcn[1].stats.limit);
|
|
rt2x00_set_field32(®, TXCSR2_NUM_PRIO,
|
|
rt2x00dev->tx[IEEE80211_TX_QUEUE_DATA0].stats.limit);
|
|
rt2x00pci_register_write(rt2x00dev, TXCSR2, reg);
|
|
|
|
rt2x00pci_register_read(rt2x00dev, TXCSR3, ®);
|
|
rt2x00_set_field32(®, TXCSR3_TX_RING_REGISTER,
|
|
rt2x00dev->tx[IEEE80211_TX_QUEUE_DATA1].data_dma);
|
|
rt2x00pci_register_write(rt2x00dev, TXCSR3, reg);
|
|
|
|
rt2x00pci_register_read(rt2x00dev, TXCSR5, ®);
|
|
rt2x00_set_field32(®, TXCSR5_PRIO_RING_REGISTER,
|
|
rt2x00dev->tx[IEEE80211_TX_QUEUE_DATA0].data_dma);
|
|
rt2x00pci_register_write(rt2x00dev, TXCSR5, reg);
|
|
|
|
rt2x00pci_register_read(rt2x00dev, TXCSR4, ®);
|
|
rt2x00_set_field32(®, TXCSR4_ATIM_RING_REGISTER,
|
|
rt2x00dev->bcn[1].data_dma);
|
|
rt2x00pci_register_write(rt2x00dev, TXCSR4, reg);
|
|
|
|
rt2x00pci_register_read(rt2x00dev, TXCSR6, ®);
|
|
rt2x00_set_field32(®, TXCSR6_BEACON_RING_REGISTER,
|
|
rt2x00dev->bcn[0].data_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->stats.limit);
|
|
rt2x00pci_register_write(rt2x00dev, RXCSR1, reg);
|
|
|
|
rt2x00pci_register_read(rt2x00dev, RXCSR2, ®);
|
|
rt2x00_set_field32(®, RXCSR2_RX_RING_REGISTER,
|
|
rt2x00dev->rx->data_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_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_init_bbp(struct rt2x00_dev *rt2x00dev)
|
|
{
|
|
unsigned int i;
|
|
u16 eeprom;
|
|
u8 reg_id;
|
|
u8 value;
|
|
|
|
for (i = 0; i < REGISTER_BUSY_COUNT; i++) {
|
|
rt2400pci_bbp_read(rt2x00dev, 0, &value);
|
|
if ((value != 0xff) && (value != 0x00))
|
|
goto continue_csr_init;
|
|
NOTICE(rt2x00dev, "Waiting for BBP register.\n");
|
|
udelay(REGISTER_BUSY_DELAY);
|
|
}
|
|
|
|
ERROR(rt2x00dev, "BBP register access failed, aborting.\n");
|
|
return -EACCES;
|
|
|
|
continue_csr_init:
|
|
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);
|
|
|
|
DEBUG(rt2x00dev, "Start initialization from EEPROM...\n");
|
|
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);
|
|
DEBUG(rt2x00dev, "BBP: 0x%02x, value: 0x%02x.\n",
|
|
reg_id, value);
|
|
rt2400pci_bbp_write(rt2x00dev, reg_id, value);
|
|
}
|
|
}
|
|
DEBUG(rt2x00dev, "...End initialization from EEPROM.\n");
|
|
|
|
return 0;
|
|
}
|
|
|
|
/*
|
|
* Device state switch handlers.
|
|
*/
|
|
static void rt2400pci_toggle_rx(struct rt2x00_dev *rt2x00dev,
|
|
enum dev_state state)
|
|
{
|
|
u32 reg;
|
|
|
|
rt2x00pci_register_read(rt2x00dev, RXCSR0, ®);
|
|
rt2x00_set_field32(®, RXCSR0_DISABLE_RX,
|
|
state == STATE_RADIO_RX_OFF);
|
|
rt2x00pci_register_write(rt2x00dev, RXCSR0, reg);
|
|
}
|
|
|
|
static void rt2400pci_toggle_irq(struct rt2x00_dev *rt2x00dev,
|
|
enum dev_state state)
|
|
{
|
|
int mask = (state == STATE_RADIO_IRQ_OFF);
|
|
u32 reg;
|
|
|
|
/*
|
|
* 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.
|
|
*/
|
|
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);
|
|
}
|
|
|
|
static int rt2400pci_enable_radio(struct rt2x00_dev *rt2x00dev)
|
|
{
|
|
/*
|
|
* Initialize all registers.
|
|
*/
|
|
if (rt2400pci_init_rings(rt2x00dev) ||
|
|
rt2400pci_init_registers(rt2x00dev) ||
|
|
rt2400pci_init_bbp(rt2x00dev)) {
|
|
ERROR(rt2x00dev, "Register initialization failed.\n");
|
|
return -EIO;
|
|
}
|
|
|
|
/*
|
|
* Enable interrupts.
|
|
*/
|
|
rt2400pci_toggle_irq(rt2x00dev, STATE_RADIO_IRQ_ON);
|
|
|
|
/*
|
|
* Enable LED
|
|
*/
|
|
rt2400pci_enable_led(rt2x00dev);
|
|
|
|
return 0;
|
|
}
|
|
|
|
static void rt2400pci_disable_radio(struct rt2x00_dev *rt2x00dev)
|
|
{
|
|
u32 reg;
|
|
|
|
/*
|
|
* Disable LED
|
|
*/
|
|
rt2400pci_disable_led(rt2x00dev);
|
|
|
|
rt2x00pci_register_write(rt2x00dev, PWRCSR0, 0);
|
|
|
|
/*
|
|
* Disable synchronisation.
|
|
*/
|
|
rt2x00pci_register_write(rt2x00dev, CSR14, 0);
|
|
|
|
/*
|
|
* Cancel RX and TX.
|
|
*/
|
|
rt2x00pci_register_read(rt2x00dev, TXCSR0, ®);
|
|
rt2x00_set_field32(®, TXCSR0_ABORT, 1);
|
|
rt2x00pci_register_write(rt2x00dev, TXCSR0, reg);
|
|
|
|
/*
|
|
* Disable interrupts.
|
|
*/
|
|
rt2400pci_toggle_irq(rt2x00dev, STATE_RADIO_IRQ_OFF);
|
|
}
|
|
|
|
static int rt2400pci_set_state(struct rt2x00_dev *rt2x00dev,
|
|
enum dev_state state)
|
|
{
|
|
u32 reg;
|
|
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, ®);
|
|
bbp_state = rt2x00_get_field32(reg, PWRCSR1_BBP_CURR_STATE);
|
|
rf_state = rt2x00_get_field32(reg, PWRCSR1_RF_CURR_STATE);
|
|
if (bbp_state == state && rf_state == state)
|
|
return 0;
|
|
msleep(10);
|
|
}
|
|
|
|
NOTICE(rt2x00dev, "Device failed to enter state %d, "
|
|
"current device state: bbp %d and rf %d.\n",
|
|
state, bbp_state, rf_state);
|
|
|
|
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_RX_ON:
|
|
case STATE_RADIO_RX_ON_LINK:
|
|
rt2400pci_toggle_rx(rt2x00dev, STATE_RADIO_RX_ON);
|
|
break;
|
|
case STATE_RADIO_RX_OFF:
|
|
case STATE_RADIO_RX_OFF_LINK:
|
|
rt2400pci_toggle_rx(rt2x00dev, STATE_RADIO_RX_OFF);
|
|
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;
|
|
}
|
|
|
|
return retval;
|
|
}
|
|
|
|
/*
|
|
* TX descriptor initialization
|
|
*/
|
|
static void rt2400pci_write_tx_desc(struct rt2x00_dev *rt2x00dev,
|
|
struct sk_buff *skb,
|
|
struct txdata_entry_desc *desc,
|
|
struct ieee80211_tx_control *control)
|
|
{
|
|
struct skb_desc *skbdesc = get_skb_desc(skb);
|
|
__le32 *txd = skbdesc->desc;
|
|
u32 word;
|
|
|
|
/*
|
|
* Start writing the descriptor words.
|
|
*/
|
|
rt2x00_desc_read(txd, 2, &word);
|
|
rt2x00_set_field32(&word, TXD_W2_DATABYTE_COUNT, skbdesc->data_len);
|
|
rt2x00_desc_write(txd, 2, word);
|
|
|
|
rt2x00_desc_read(txd, 3, &word);
|
|
rt2x00_set_field32(&word, TXD_W3_PLCP_SIGNAL, desc->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, desc->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, desc->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, desc->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);
|
|
|
|
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, &desc->flags));
|
|
rt2x00_set_field32(&word, TXD_W0_ACK,
|
|
test_bit(ENTRY_TXD_ACK, &desc->flags));
|
|
rt2x00_set_field32(&word, TXD_W0_TIMESTAMP,
|
|
test_bit(ENTRY_TXD_REQ_TIMESTAMP, &desc->flags));
|
|
rt2x00_set_field32(&word, TXD_W0_RTS,
|
|
test_bit(ENTRY_TXD_RTS_FRAME, &desc->flags));
|
|
rt2x00_set_field32(&word, TXD_W0_IFS, desc->ifs);
|
|
rt2x00_set_field32(&word, TXD_W0_RETRY_MODE,
|
|
!!(control->flags &
|
|
IEEE80211_TXCTL_LONG_RETRY_LIMIT));
|
|
rt2x00_desc_write(txd, 0, word);
|
|
}
|
|
|
|
/*
|
|
* TX data initialization
|
|
*/
|
|
static void rt2400pci_kick_tx_queue(struct rt2x00_dev *rt2x00dev,
|
|
unsigned int queue)
|
|
{
|
|
u32 reg;
|
|
|
|
if (queue == IEEE80211_TX_QUEUE_BEACON) {
|
|
rt2x00pci_register_read(rt2x00dev, CSR14, ®);
|
|
if (!rt2x00_get_field32(reg, CSR14_BEACON_GEN)) {
|
|
rt2x00_set_field32(®, CSR14_BEACON_GEN, 1);
|
|
rt2x00pci_register_write(rt2x00dev, CSR14, reg);
|
|
}
|
|
return;
|
|
}
|
|
|
|
rt2x00pci_register_read(rt2x00dev, TXCSR0, ®);
|
|
rt2x00_set_field32(®, TXCSR0_KICK_PRIO,
|
|
(queue == IEEE80211_TX_QUEUE_DATA0));
|
|
rt2x00_set_field32(®, TXCSR0_KICK_TX,
|
|
(queue == IEEE80211_TX_QUEUE_DATA1));
|
|
rt2x00_set_field32(®, TXCSR0_KICK_ATIM,
|
|
(queue == IEEE80211_TX_QUEUE_AFTER_BEACON));
|
|
rt2x00pci_register_write(rt2x00dev, TXCSR0, reg);
|
|
}
|
|
|
|
/*
|
|
* RX control handlers
|
|
*/
|
|
static void rt2400pci_fill_rxdone(struct data_entry *entry,
|
|
struct rxdata_entry_desc *desc)
|
|
{
|
|
__le32 *rxd = entry->priv;
|
|
u32 word0;
|
|
u32 word2;
|
|
|
|
rt2x00_desc_read(rxd, 0, &word0);
|
|
rt2x00_desc_read(rxd, 2, &word2);
|
|
|
|
desc->flags = 0;
|
|
if (rt2x00_get_field32(word0, RXD_W0_CRC_ERROR))
|
|
desc->flags |= RX_FLAG_FAILED_FCS_CRC;
|
|
if (rt2x00_get_field32(word0, RXD_W0_PHYSICAL_ERROR))
|
|
desc->flags |= RX_FLAG_FAILED_PLCP_CRC;
|
|
|
|
/*
|
|
* Obtain the status about this packet.
|
|
*/
|
|
desc->signal = rt2x00_get_field32(word2, RXD_W2_SIGNAL);
|
|
desc->rssi = rt2x00_get_field32(word2, RXD_W2_RSSI) -
|
|
entry->ring->rt2x00dev->rssi_offset;
|
|
desc->ofdm = 0;
|
|
desc->size = rt2x00_get_field32(word0, RXD_W0_DATABYTE_COUNT);
|
|
desc->my_bss = !!rt2x00_get_field32(word0, RXD_W0_MY_BSS);
|
|
}
|
|
|
|
/*
|
|
* Interrupt functions.
|
|
*/
|
|
static void rt2400pci_txdone(struct rt2x00_dev *rt2x00dev, const int queue)
|
|
{
|
|
struct data_ring *ring = rt2x00lib_get_ring(rt2x00dev, queue);
|
|
struct data_entry *entry;
|
|
__le32 *txd;
|
|
u32 word;
|
|
int tx_status;
|
|
int retry;
|
|
|
|
while (!rt2x00_ring_empty(ring)) {
|
|
entry = rt2x00_get_data_entry_done(ring);
|
|
txd = entry->priv;
|
|
rt2x00_desc_read(txd, 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.
|
|
*/
|
|
tx_status = rt2x00_get_field32(word, TXD_W0_RESULT);
|
|
retry = rt2x00_get_field32(word, TXD_W0_RETRY_COUNT);
|
|
|
|
rt2x00pci_txdone(rt2x00dev, entry, tx_status, retry);
|
|
}
|
|
}
|
|
|
|
static irqreturn_t rt2400pci_interrupt(int irq, void *dev_instance)
|
|
{
|
|
struct rt2x00_dev *rt2x00dev = dev_instance;
|
|
u32 reg;
|
|
|
|
/*
|
|
* 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_ENABLED_RADIO, &rt2x00dev->flags))
|
|
return IRQ_HANDLED;
|
|
|
|
/*
|
|
* Handle interrupts, walk through all bits
|
|
* and run the tasks, the bits are checked in order of
|
|
* priority.
|
|
*/
|
|
|
|
/*
|
|
* 1 - Beacon timer expired interrupt.
|
|
*/
|
|
if (rt2x00_get_field32(reg, CSR7_TBCN_EXPIRE))
|
|
rt2x00lib_beacondone(rt2x00dev);
|
|
|
|
/*
|
|
* 2 - Rx ring done interrupt.
|
|
*/
|
|
if (rt2x00_get_field32(reg, CSR7_RXDONE))
|
|
rt2x00pci_rxdone(rt2x00dev);
|
|
|
|
/*
|
|
* 3 - Atim ring transmit done interrupt.
|
|
*/
|
|
if (rt2x00_get_field32(reg, CSR7_TXDONE_ATIMRING))
|
|
rt2400pci_txdone(rt2x00dev, IEEE80211_TX_QUEUE_AFTER_BEACON);
|
|
|
|
/*
|
|
* 4 - Priority ring transmit done interrupt.
|
|
*/
|
|
if (rt2x00_get_field32(reg, CSR7_TXDONE_PRIORING))
|
|
rt2400pci_txdone(rt2x00dev, IEEE80211_TX_QUEUE_DATA0);
|
|
|
|
/*
|
|
* 5 - Tx ring transmit done interrupt.
|
|
*/
|
|
if (rt2x00_get_field32(reg, CSR7_TXDONE_TXRING))
|
|
rt2400pci_txdone(rt2x00dev, IEEE80211_TX_QUEUE_DATA1);
|
|
|
|
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)) {
|
|
DECLARE_MAC_BUF(macbuf);
|
|
|
|
random_ether_addr(mac);
|
|
EEPROM(rt2x00dev, "MAC: %s\n", print_mac(macbuf, 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, reg);
|
|
|
|
if (!rt2x00_rf(&rt2x00dev->chip, RF2420) &&
|
|
!rt2x00_rf(&rt2x00dev->chip, 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.
|
|
*/
|
|
rt2x00dev->led_mode =
|
|
rt2x00_get_field16(eeprom, EEPROM_ANTENNA_LED_MODE);
|
|
|
|
/*
|
|
* Detect if this device has an hardware controlled radio.
|
|
*/
|
|
#ifdef CONFIG_RT2400PCI_RFKILL
|
|
if (rt2x00_get_field16(eeprom, EEPROM_ANTENNA_HARDWARE_RADIO))
|
|
__set_bit(CONFIG_SUPPORT_HW_BUTTON, &rt2x00dev->flags);
|
|
#endif /* CONFIG_RT2400PCI_RFKILL */
|
|
|
|
/*
|
|
* Check if the BBP tuning should be enabled.
|
|
*/
|
|
if (!rt2x00_get_field16(eeprom, EEPROM_ANTENNA_RX_AGCVGC_TUNING))
|
|
__set_bit(CONFIG_DISABLE_LINK_TUNING, &rt2x00dev->flags);
|
|
|
|
return 0;
|
|
}
|
|
|
|
/*
|
|
* RF value list for RF2420 & RF2421
|
|
* Supports: 2.4 GHz
|
|
*/
|
|
static const struct rf_channel rf_vals_bg[] = {
|
|
{ 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 void rt2400pci_probe_hw_mode(struct rt2x00_dev *rt2x00dev)
|
|
{
|
|
struct hw_mode_spec *spec = &rt2x00dev->spec;
|
|
u8 *txpower;
|
|
unsigned int i;
|
|
|
|
/*
|
|
* Initialize all hw fields.
|
|
*/
|
|
rt2x00dev->hw->flags = IEEE80211_HW_HOST_BROADCAST_PS_BUFFERING;
|
|
rt2x00dev->hw->extra_tx_headroom = 0;
|
|
rt2x00dev->hw->max_signal = MAX_SIGNAL;
|
|
rt2x00dev->hw->max_rssi = MAX_RX_SSI;
|
|
rt2x00dev->hw->queues = 2;
|
|
|
|
SET_IEEE80211_DEV(rt2x00dev->hw, &rt2x00dev_pci(rt2x00dev)->dev);
|
|
SET_IEEE80211_PERM_ADDR(rt2x00dev->hw,
|
|
rt2x00_eeprom_addr(rt2x00dev,
|
|
EEPROM_MAC_ADDR_0));
|
|
|
|
/*
|
|
* Convert tx_power array in eeprom.
|
|
*/
|
|
txpower = rt2x00_eeprom_addr(rt2x00dev, EEPROM_TXPOWER_START);
|
|
for (i = 0; i < 14; i++)
|
|
txpower[i] = TXPOWER_FROM_DEV(txpower[i]);
|
|
|
|
/*
|
|
* Initialize hw_mode information.
|
|
*/
|
|
spec->num_modes = 1;
|
|
spec->num_rates = 4;
|
|
spec->tx_power_a = NULL;
|
|
spec->tx_power_bg = txpower;
|
|
spec->tx_power_default = DEFAULT_TXPOWER;
|
|
|
|
spec->num_channels = ARRAY_SIZE(rf_vals_bg);
|
|
spec->channels = rf_vals_bg;
|
|
}
|
|
|
|
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.
|
|
*/
|
|
rt2400pci_probe_hw_mode(rt2x00dev);
|
|
|
|
/*
|
|
* This device requires the beacon ring
|
|
*/
|
|
__set_bit(DRIVER_REQUIRE_BEACON_RING, &rt2x00dev->flags);
|
|
|
|
/*
|
|
* Set the rssi offset.
|
|
*/
|
|
rt2x00dev->rssi_offset = DEFAULT_RSSI_OFFSET;
|
|
|
|
return 0;
|
|
}
|
|
|
|
/*
|
|
* IEEE80211 stack callback functions.
|
|
*/
|
|
static void rt2400pci_configure_filter(struct ieee80211_hw *hw,
|
|
unsigned int changed_flags,
|
|
unsigned int *total_flags,
|
|
int mc_count,
|
|
struct dev_addr_list *mc_list)
|
|
{
|
|
struct rt2x00_dev *rt2x00dev = hw->priv;
|
|
u32 reg;
|
|
|
|
/*
|
|
* Mask off any flags we are going to ignore from
|
|
* the total_flags field.
|
|
*/
|
|
*total_flags &=
|
|
FIF_ALLMULTI |
|
|
FIF_FCSFAIL |
|
|
FIF_PLCPFAIL |
|
|
FIF_CONTROL |
|
|
FIF_OTHER_BSS |
|
|
FIF_PROMISC_IN_BSS;
|
|
|
|
/*
|
|
* Apply some rules to the filters:
|
|
* - Some filters imply different filters to be set.
|
|
* - Some things we can't filter out at all.
|
|
*/
|
|
*total_flags |= FIF_ALLMULTI;
|
|
if (*total_flags & FIF_OTHER_BSS ||
|
|
*total_flags & FIF_PROMISC_IN_BSS)
|
|
*total_flags |= FIF_PROMISC_IN_BSS | FIF_OTHER_BSS;
|
|
|
|
/*
|
|
* Check if there is any work left for us.
|
|
*/
|
|
if (rt2x00dev->packet_filter == *total_flags)
|
|
return;
|
|
rt2x00dev->packet_filter = *total_flags;
|
|
|
|
/*
|
|
* Start configuration steps.
|
|
* Note that the version error will always be dropped
|
|
* since there is no filter for it at this time.
|
|
*/
|
|
rt2x00pci_register_read(rt2x00dev, RXCSR0, ®);
|
|
rt2x00_set_field32(®, RXCSR0_DROP_CRC,
|
|
!(*total_flags & FIF_FCSFAIL));
|
|
rt2x00_set_field32(®, RXCSR0_DROP_PHYSICAL,
|
|
!(*total_flags & FIF_PLCPFAIL));
|
|
rt2x00_set_field32(®, RXCSR0_DROP_CONTROL,
|
|
!(*total_flags & FIF_CONTROL));
|
|
rt2x00_set_field32(®, RXCSR0_DROP_NOT_TO_ME,
|
|
!(*total_flags & FIF_PROMISC_IN_BSS));
|
|
rt2x00_set_field32(®, RXCSR0_DROP_TODS,
|
|
!(*total_flags & FIF_PROMISC_IN_BSS));
|
|
rt2x00_set_field32(®, RXCSR0_DROP_VERSION_ERROR, 1);
|
|
rt2x00pci_register_write(rt2x00dev, RXCSR0, reg);
|
|
}
|
|
|
|
static int rt2400pci_set_retry_limit(struct ieee80211_hw *hw,
|
|
u32 short_retry, u32 long_retry)
|
|
{
|
|
struct rt2x00_dev *rt2x00dev = hw->priv;
|
|
u32 reg;
|
|
|
|
rt2x00pci_register_read(rt2x00dev, CSR11, ®);
|
|
rt2x00_set_field32(®, CSR11_LONG_RETRY, long_retry);
|
|
rt2x00_set_field32(®, CSR11_SHORT_RETRY, short_retry);
|
|
rt2x00pci_register_write(rt2x00dev, CSR11, reg);
|
|
|
|
return 0;
|
|
}
|
|
|
|
static int rt2400pci_conf_tx(struct ieee80211_hw *hw,
|
|
int 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 != IEEE80211_TX_QUEUE_DATA0)
|
|
return -EINVAL;
|
|
|
|
if (rt2x00mac_conf_tx(hw, queue, params))
|
|
return -EINVAL;
|
|
|
|
/*
|
|
* Write configuration to register.
|
|
*/
|
|
rt2400pci_config_cw(rt2x00dev, &rt2x00dev->tx->tx_params);
|
|
|
|
return 0;
|
|
}
|
|
|
|
static u64 rt2400pci_get_tsf(struct ieee80211_hw *hw)
|
|
{
|
|
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 void rt2400pci_reset_tsf(struct ieee80211_hw *hw)
|
|
{
|
|
struct rt2x00_dev *rt2x00dev = hw->priv;
|
|
|
|
rt2x00pci_register_write(rt2x00dev, CSR16, 0);
|
|
rt2x00pci_register_write(rt2x00dev, CSR17, 0);
|
|
}
|
|
|
|
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,
|
|
.config_interface = rt2x00mac_config_interface,
|
|
.configure_filter = rt2400pci_configure_filter,
|
|
.get_stats = rt2x00mac_get_stats,
|
|
.set_retry_limit = rt2400pci_set_retry_limit,
|
|
.bss_info_changed = rt2x00mac_bss_info_changed,
|
|
.conf_tx = rt2400pci_conf_tx,
|
|
.get_tx_stats = rt2x00mac_get_tx_stats,
|
|
.get_tsf = rt2400pci_get_tsf,
|
|
.reset_tsf = rt2400pci_reset_tsf,
|
|
.beacon_update = rt2x00pci_beacon_update,
|
|
.tx_last_beacon = rt2400pci_tx_last_beacon,
|
|
};
|
|
|
|
static const struct rt2x00lib_ops rt2400pci_rt2x00_ops = {
|
|
.irq_handler = rt2400pci_interrupt,
|
|
.probe_hw = rt2400pci_probe_hw,
|
|
.initialize = rt2x00pci_initialize,
|
|
.uninitialize = rt2x00pci_uninitialize,
|
|
.init_rxentry = rt2400pci_init_rxentry,
|
|
.init_txentry = rt2400pci_init_txentry,
|
|
.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,
|
|
.write_tx_desc = rt2400pci_write_tx_desc,
|
|
.write_tx_data = rt2x00pci_write_tx_data,
|
|
.kick_tx_queue = rt2400pci_kick_tx_queue,
|
|
.fill_rxdone = rt2400pci_fill_rxdone,
|
|
.config_mac_addr = rt2400pci_config_mac_addr,
|
|
.config_bssid = rt2400pci_config_bssid,
|
|
.config_type = rt2400pci_config_type,
|
|
.config_preamble = rt2400pci_config_preamble,
|
|
.config = rt2400pci_config,
|
|
};
|
|
|
|
static const struct rt2x00_ops rt2400pci_ops = {
|
|
.name = KBUILD_MODNAME,
|
|
.rxd_size = RXD_DESC_SIZE,
|
|
.txd_size = TXD_DESC_SIZE,
|
|
.eeprom_size = EEPROM_SIZE,
|
|
.rf_size = RF_SIZE,
|
|
.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 struct pci_device_id rt2400pci_device_table[] = {
|
|
{ PCI_DEVICE(0x1814, 0x0101), PCI_DEVICE_DATA(&rt2400pci_ops) },
|
|
{ 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 struct pci_driver rt2400pci_driver = {
|
|
.name = KBUILD_MODNAME,
|
|
.id_table = rt2400pci_device_table,
|
|
.probe = rt2x00pci_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);
|