2220 lines
50 KiB
C
2220 lines
50 KiB
C
/*
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* Copyright (c) 2013 Realtek Semiconductor Corp. All rights reserved.
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*
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* This program is free software; you can redistribute it and/or
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* modify it under the terms of the GNU General Public License
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* version 2 as published by the Free Software Foundation.
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*
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*/
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#include <linux/init.h>
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#include <linux/signal.h>
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#include <linux/slab.h>
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#include <linux/module.h>
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#include <linux/netdevice.h>
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#include <linux/etherdevice.h>
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#include <linux/mii.h>
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#include <linux/ethtool.h>
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#include <linux/usb.h>
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#include <linux/crc32.h>
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#include <linux/if_vlan.h>
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#include <linux/uaccess.h>
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#include <linux/list.h>
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#include <linux/ip.h>
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#include <linux/ipv6.h>
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/* Version Information */
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#define DRIVER_VERSION "v1.01.0 (2013/08/12)"
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#define DRIVER_AUTHOR "Realtek linux nic maintainers <nic_swsd@realtek.com>"
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#define DRIVER_DESC "Realtek RTL8152 Based USB 2.0 Ethernet Adapters"
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#define MODULENAME "r8152"
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#define R8152_PHY_ID 32
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#define PLA_IDR 0xc000
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#define PLA_RCR 0xc010
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#define PLA_RMS 0xc016
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#define PLA_RXFIFO_CTRL0 0xc0a0
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#define PLA_RXFIFO_CTRL1 0xc0a4
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#define PLA_RXFIFO_CTRL2 0xc0a8
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#define PLA_FMC 0xc0b4
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#define PLA_CFG_WOL 0xc0b6
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#define PLA_MAR 0xcd00
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#define PAL_BDC_CR 0xd1a0
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#define PLA_LEDSEL 0xdd90
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#define PLA_LED_FEATURE 0xdd92
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#define PLA_PHYAR 0xde00
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#define PLA_GPHY_INTR_IMR 0xe022
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#define PLA_EEE_CR 0xe040
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#define PLA_EEEP_CR 0xe080
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#define PLA_MAC_PWR_CTRL 0xe0c0
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#define PLA_TCR0 0xe610
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#define PLA_TCR1 0xe612
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#define PLA_TXFIFO_CTRL 0xe618
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#define PLA_RSTTELLY 0xe800
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#define PLA_CR 0xe813
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#define PLA_CRWECR 0xe81c
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#define PLA_CONFIG5 0xe822
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#define PLA_PHY_PWR 0xe84c
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#define PLA_OOB_CTRL 0xe84f
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#define PLA_CPCR 0xe854
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#define PLA_MISC_0 0xe858
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#define PLA_MISC_1 0xe85a
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#define PLA_OCP_GPHY_BASE 0xe86c
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#define PLA_TELLYCNT 0xe890
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#define PLA_SFF_STS_7 0xe8de
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#define PLA_PHYSTATUS 0xe908
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#define PLA_BP_BA 0xfc26
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#define PLA_BP_0 0xfc28
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#define PLA_BP_1 0xfc2a
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#define PLA_BP_2 0xfc2c
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#define PLA_BP_3 0xfc2e
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#define PLA_BP_4 0xfc30
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#define PLA_BP_5 0xfc32
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#define PLA_BP_6 0xfc34
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#define PLA_BP_7 0xfc36
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#define USB_DEV_STAT 0xb808
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#define USB_USB_CTRL 0xd406
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#define USB_PHY_CTRL 0xd408
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#define USB_TX_AGG 0xd40a
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#define USB_RX_BUF_TH 0xd40c
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#define USB_USB_TIMER 0xd428
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#define USB_PM_CTRL_STATUS 0xd432
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#define USB_TX_DMA 0xd434
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#define USB_UPS_CTRL 0xd800
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#define USB_BP_BA 0xfc26
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#define USB_BP_0 0xfc28
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#define USB_BP_1 0xfc2a
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#define USB_BP_2 0xfc2c
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#define USB_BP_3 0xfc2e
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#define USB_BP_4 0xfc30
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#define USB_BP_5 0xfc32
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#define USB_BP_6 0xfc34
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#define USB_BP_7 0xfc36
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/* OCP Registers */
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#define OCP_ALDPS_CONFIG 0x2010
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#define OCP_EEE_CONFIG1 0x2080
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#define OCP_EEE_CONFIG2 0x2092
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#define OCP_EEE_CONFIG3 0x2094
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#define OCP_EEE_AR 0xa41a
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#define OCP_EEE_DATA 0xa41c
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/* PLA_RCR */
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#define RCR_AAP 0x00000001
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#define RCR_APM 0x00000002
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#define RCR_AM 0x00000004
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#define RCR_AB 0x00000008
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#define RCR_ACPT_ALL (RCR_AAP | RCR_APM | RCR_AM | RCR_AB)
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/* PLA_RXFIFO_CTRL0 */
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#define RXFIFO_THR1_NORMAL 0x00080002
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#define RXFIFO_THR1_OOB 0x01800003
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/* PLA_RXFIFO_CTRL1 */
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#define RXFIFO_THR2_FULL 0x00000060
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#define RXFIFO_THR2_HIGH 0x00000038
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#define RXFIFO_THR2_OOB 0x0000004a
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/* PLA_RXFIFO_CTRL2 */
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#define RXFIFO_THR3_FULL 0x00000078
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#define RXFIFO_THR3_HIGH 0x00000048
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#define RXFIFO_THR3_OOB 0x0000005a
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/* PLA_TXFIFO_CTRL */
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#define TXFIFO_THR_NORMAL 0x00400008
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/* PLA_FMC */
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#define FMC_FCR_MCU_EN 0x0001
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/* PLA_EEEP_CR */
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#define EEEP_CR_EEEP_TX 0x0002
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/* PLA_TCR0 */
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#define TCR0_TX_EMPTY 0x0800
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#define TCR0_AUTO_FIFO 0x0080
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/* PLA_TCR1 */
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#define VERSION_MASK 0x7cf0
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/* PLA_CR */
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#define CR_RST 0x10
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#define CR_RE 0x08
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#define CR_TE 0x04
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/* PLA_CRWECR */
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#define CRWECR_NORAML 0x00
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#define CRWECR_CONFIG 0xc0
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/* PLA_OOB_CTRL */
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#define NOW_IS_OOB 0x80
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#define TXFIFO_EMPTY 0x20
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#define RXFIFO_EMPTY 0x10
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#define LINK_LIST_READY 0x02
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#define DIS_MCU_CLROOB 0x01
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#define FIFO_EMPTY (TXFIFO_EMPTY | RXFIFO_EMPTY)
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/* PLA_MISC_1 */
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#define RXDY_GATED_EN 0x0008
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/* PLA_SFF_STS_7 */
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#define RE_INIT_LL 0x8000
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#define MCU_BORW_EN 0x4000
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/* PLA_CPCR */
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#define CPCR_RX_VLAN 0x0040
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/* PLA_CFG_WOL */
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#define MAGIC_EN 0x0001
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/* PAL_BDC_CR */
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#define ALDPS_PROXY_MODE 0x0001
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/* PLA_CONFIG5 */
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#define LAN_WAKE_EN 0x0002
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/* PLA_LED_FEATURE */
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#define LED_MODE_MASK 0x0700
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/* PLA_PHY_PWR */
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#define TX_10M_IDLE_EN 0x0080
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#define PFM_PWM_SWITCH 0x0040
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/* PLA_MAC_PWR_CTRL */
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#define D3_CLK_GATED_EN 0x00004000
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#define MCU_CLK_RATIO 0x07010f07
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#define MCU_CLK_RATIO_MASK 0x0f0f0f0f
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/* PLA_GPHY_INTR_IMR */
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#define GPHY_STS_MSK 0x0001
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#define SPEED_DOWN_MSK 0x0002
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#define SPDWN_RXDV_MSK 0x0004
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#define SPDWN_LINKCHG_MSK 0x0008
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/* PLA_PHYAR */
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#define PHYAR_FLAG 0x80000000
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/* PLA_EEE_CR */
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#define EEE_RX_EN 0x0001
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#define EEE_TX_EN 0x0002
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/* USB_DEV_STAT */
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#define STAT_SPEED_MASK 0x0006
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#define STAT_SPEED_HIGH 0x0000
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#define STAT_SPEED_FULL 0x0001
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/* USB_TX_AGG */
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#define TX_AGG_MAX_THRESHOLD 0x03
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/* USB_RX_BUF_TH */
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#define RX_BUF_THR 0x7a120180
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/* USB_TX_DMA */
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#define TEST_MODE_DISABLE 0x00000001
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#define TX_SIZE_ADJUST1 0x00000100
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/* USB_UPS_CTRL */
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#define POWER_CUT 0x0100
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/* USB_PM_CTRL_STATUS */
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#define RWSUME_INDICATE 0x0001
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/* USB_USB_CTRL */
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#define RX_AGG_DISABLE 0x0010
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/* OCP_ALDPS_CONFIG */
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#define ENPWRSAVE 0x8000
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#define ENPDNPS 0x0200
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#define LINKENA 0x0100
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#define DIS_SDSAVE 0x0010
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/* OCP_EEE_CONFIG1 */
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#define RG_TXLPI_MSK_HFDUP 0x8000
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#define RG_MATCLR_EN 0x4000
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#define EEE_10_CAP 0x2000
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#define EEE_NWAY_EN 0x1000
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#define TX_QUIET_EN 0x0200
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#define RX_QUIET_EN 0x0100
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#define SDRISETIME 0x0010 /* bit 4 ~ 6 */
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#define RG_RXLPI_MSK_HFDUP 0x0008
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#define SDFALLTIME 0x0007 /* bit 0 ~ 2 */
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/* OCP_EEE_CONFIG2 */
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#define RG_LPIHYS_NUM 0x7000 /* bit 12 ~ 15 */
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#define RG_DACQUIET_EN 0x0400
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#define RG_LDVQUIET_EN 0x0200
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#define RG_CKRSEL 0x0020
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#define RG_EEEPRG_EN 0x0010
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/* OCP_EEE_CONFIG3 */
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#define FST_SNR_EYE_R 0x1500 /* bit 7 ~ 15 */
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#define RG_LFS_SEL 0x0060 /* bit 6 ~ 5 */
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#define MSK_PH 0x0006 /* bit 0 ~ 3 */
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/* OCP_EEE_AR */
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/* bit[15:14] function */
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#define FUN_ADDR 0x0000
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#define FUN_DATA 0x4000
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/* bit[4:0] device addr */
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#define DEVICE_ADDR 0x0007
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/* OCP_EEE_DATA */
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#define EEE_ADDR 0x003C
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#define EEE_DATA 0x0002
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enum rtl_register_content {
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_100bps = 0x08,
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_10bps = 0x04,
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LINK_STATUS = 0x02,
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FULL_DUP = 0x01,
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};
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#define RTL8152_MAX_TX 10
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#define RTL8152_MAX_RX 10
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#define INTBUFSIZE 2
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#define INTR_LINK 0x0004
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#define RTL8152_REQT_READ 0xc0
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#define RTL8152_REQT_WRITE 0x40
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#define RTL8152_REQ_GET_REGS 0x05
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#define RTL8152_REQ_SET_REGS 0x05
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#define BYTE_EN_DWORD 0xff
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#define BYTE_EN_WORD 0x33
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#define BYTE_EN_BYTE 0x11
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#define BYTE_EN_SIX_BYTES 0x3f
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#define BYTE_EN_START_MASK 0x0f
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#define BYTE_EN_END_MASK 0xf0
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#define RTL8152_RMS (VLAN_ETH_FRAME_LEN + VLAN_HLEN)
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#define RTL8152_TX_TIMEOUT (HZ)
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/* rtl8152 flags */
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enum rtl8152_flags {
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RTL8152_UNPLUG = 0,
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RTL8152_SET_RX_MODE,
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WORK_ENABLE,
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RTL8152_LINK_CHG,
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};
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/* Define these values to match your device */
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#define VENDOR_ID_REALTEK 0x0bda
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#define PRODUCT_ID_RTL8152 0x8152
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#define MCU_TYPE_PLA 0x0100
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#define MCU_TYPE_USB 0x0000
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struct rx_desc {
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u32 opts1;
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#define RX_LEN_MASK 0x7fff
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u32 opts2;
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u32 opts3;
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u32 opts4;
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u32 opts5;
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u32 opts6;
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};
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struct tx_desc {
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u32 opts1;
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#define TX_FS (1 << 31) /* First segment of a packet */
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#define TX_LS (1 << 30) /* Final segment of a packet */
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#define TX_LEN_MASK 0x3ffff
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u32 opts2;
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#define UDP_CS (1 << 31) /* Calculate UDP/IP checksum */
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#define TCP_CS (1 << 30) /* Calculate TCP/IP checksum */
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#define IPV4_CS (1 << 29) /* Calculate IPv4 checksum */
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#define IPV6_CS (1 << 28) /* Calculate IPv6 checksum */
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};
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struct r8152;
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struct rx_agg {
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struct list_head list;
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struct urb *urb;
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struct r8152 *context;
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void *buffer;
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void *head;
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};
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struct tx_agg {
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struct list_head list;
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struct urb *urb;
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struct r8152 *context;
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void *buffer;
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void *head;
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u32 skb_num;
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u32 skb_len;
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};
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struct r8152 {
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unsigned long flags;
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struct usb_device *udev;
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struct tasklet_struct tl;
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struct usb_interface *intf;
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struct net_device *netdev;
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struct urb *intr_urb;
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struct tx_agg tx_info[RTL8152_MAX_TX];
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struct rx_agg rx_info[RTL8152_MAX_RX];
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struct list_head rx_done, tx_free;
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struct sk_buff_head tx_queue;
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spinlock_t rx_lock, tx_lock;
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struct delayed_work schedule;
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struct mii_if_info mii;
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int intr_interval;
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u32 msg_enable;
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u16 ocp_base;
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u8 *intr_buff;
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u8 version;
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u8 speed;
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};
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enum rtl_version {
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RTL_VER_UNKNOWN = 0,
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RTL_VER_01,
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RTL_VER_02
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};
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/* Maximum number of multicast addresses to filter (vs. Rx-all-multicast).
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* The RTL chips use a 64 element hash table based on the Ethernet CRC.
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*/
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static const int multicast_filter_limit = 32;
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static unsigned int rx_buf_sz = 16384;
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static
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int get_registers(struct r8152 *tp, u16 value, u16 index, u16 size, void *data)
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{
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int ret;
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void *tmp;
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tmp = kmalloc(size, GFP_KERNEL);
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if (!tmp)
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return -ENOMEM;
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ret = usb_control_msg(tp->udev, usb_rcvctrlpipe(tp->udev, 0),
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RTL8152_REQ_GET_REGS, RTL8152_REQT_READ,
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value, index, tmp, size, 500);
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memcpy(data, tmp, size);
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kfree(tmp);
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return ret;
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}
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static
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int set_registers(struct r8152 *tp, u16 value, u16 index, u16 size, void *data)
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{
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int ret;
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void *tmp;
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tmp = kmalloc(size, GFP_KERNEL);
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if (!tmp)
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return -ENOMEM;
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memcpy(tmp, data, size);
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ret = usb_control_msg(tp->udev, usb_sndctrlpipe(tp->udev, 0),
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RTL8152_REQ_SET_REGS, RTL8152_REQT_WRITE,
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value, index, tmp, size, 500);
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kfree(tmp);
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return ret;
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}
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static int generic_ocp_read(struct r8152 *tp, u16 index, u16 size,
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void *data, u16 type)
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{
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u16 limit = 64;
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int ret = 0;
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if (test_bit(RTL8152_UNPLUG, &tp->flags))
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return -ENODEV;
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/* both size and indix must be 4 bytes align */
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if ((size & 3) || !size || (index & 3) || !data)
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return -EPERM;
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if ((u32)index + (u32)size > 0xffff)
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return -EPERM;
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while (size) {
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if (size > limit) {
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ret = get_registers(tp, index, type, limit, data);
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if (ret < 0)
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break;
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index += limit;
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data += limit;
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size -= limit;
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} else {
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ret = get_registers(tp, index, type, size, data);
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if (ret < 0)
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break;
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index += size;
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data += size;
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size = 0;
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break;
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}
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}
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return ret;
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}
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static int generic_ocp_write(struct r8152 *tp, u16 index, u16 byteen,
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u16 size, void *data, u16 type)
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{
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int ret;
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u16 byteen_start, byteen_end, byen;
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u16 limit = 512;
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if (test_bit(RTL8152_UNPLUG, &tp->flags))
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return -ENODEV;
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/* both size and indix must be 4 bytes align */
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if ((size & 3) || !size || (index & 3) || !data)
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return -EPERM;
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if ((u32)index + (u32)size > 0xffff)
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return -EPERM;
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byteen_start = byteen & BYTE_EN_START_MASK;
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byteen_end = byteen & BYTE_EN_END_MASK;
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byen = byteen_start | (byteen_start << 4);
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ret = set_registers(tp, index, type | byen, 4, data);
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if (ret < 0)
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goto error1;
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index += 4;
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data += 4;
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size -= 4;
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if (size) {
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size -= 4;
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while (size) {
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if (size > limit) {
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ret = set_registers(tp, index,
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type | BYTE_EN_DWORD,
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limit, data);
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if (ret < 0)
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goto error1;
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index += limit;
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data += limit;
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size -= limit;
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} else {
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ret = set_registers(tp, index,
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type | BYTE_EN_DWORD,
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size, data);
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if (ret < 0)
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goto error1;
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|
|
|
index += size;
|
|
data += size;
|
|
size = 0;
|
|
break;
|
|
}
|
|
}
|
|
|
|
byen = byteen_end | (byteen_end >> 4);
|
|
ret = set_registers(tp, index, type | byen, 4, data);
|
|
if (ret < 0)
|
|
goto error1;
|
|
}
|
|
|
|
error1:
|
|
return ret;
|
|
}
|
|
|
|
static inline
|
|
int pla_ocp_read(struct r8152 *tp, u16 index, u16 size, void *data)
|
|
{
|
|
return generic_ocp_read(tp, index, size, data, MCU_TYPE_PLA);
|
|
}
|
|
|
|
static inline
|
|
int pla_ocp_write(struct r8152 *tp, u16 index, u16 byteen, u16 size, void *data)
|
|
{
|
|
return generic_ocp_write(tp, index, byteen, size, data, MCU_TYPE_PLA);
|
|
}
|
|
|
|
static inline
|
|
int usb_ocp_read(struct r8152 *tp, u16 index, u16 size, void *data)
|
|
{
|
|
return generic_ocp_read(tp, index, size, data, MCU_TYPE_USB);
|
|
}
|
|
|
|
static inline
|
|
int usb_ocp_write(struct r8152 *tp, u16 index, u16 byteen, u16 size, void *data)
|
|
{
|
|
return generic_ocp_write(tp, index, byteen, size, data, MCU_TYPE_USB);
|
|
}
|
|
|
|
static u32 ocp_read_dword(struct r8152 *tp, u16 type, u16 index)
|
|
{
|
|
__le32 data;
|
|
|
|
generic_ocp_read(tp, index, sizeof(data), &data, type);
|
|
|
|
return __le32_to_cpu(data);
|
|
}
|
|
|
|
static void ocp_write_dword(struct r8152 *tp, u16 type, u16 index, u32 data)
|
|
{
|
|
__le32 tmp = __cpu_to_le32(data);
|
|
|
|
generic_ocp_write(tp, index, BYTE_EN_DWORD, sizeof(tmp), &tmp, type);
|
|
}
|
|
|
|
static u16 ocp_read_word(struct r8152 *tp, u16 type, u16 index)
|
|
{
|
|
u32 data;
|
|
__le32 tmp;
|
|
u8 shift = index & 2;
|
|
|
|
index &= ~3;
|
|
|
|
generic_ocp_read(tp, index, sizeof(tmp), &tmp, type);
|
|
|
|
data = __le32_to_cpu(tmp);
|
|
data >>= (shift * 8);
|
|
data &= 0xffff;
|
|
|
|
return (u16)data;
|
|
}
|
|
|
|
static void ocp_write_word(struct r8152 *tp, u16 type, u16 index, u32 data)
|
|
{
|
|
u32 mask = 0xffff;
|
|
__le32 tmp;
|
|
u16 byen = BYTE_EN_WORD;
|
|
u8 shift = index & 2;
|
|
|
|
data &= mask;
|
|
|
|
if (index & 2) {
|
|
byen <<= shift;
|
|
mask <<= (shift * 8);
|
|
data <<= (shift * 8);
|
|
index &= ~3;
|
|
}
|
|
|
|
generic_ocp_read(tp, index, sizeof(tmp), &tmp, type);
|
|
|
|
data |= __le32_to_cpu(tmp) & ~mask;
|
|
tmp = __cpu_to_le32(data);
|
|
|
|
generic_ocp_write(tp, index, byen, sizeof(tmp), &tmp, type);
|
|
}
|
|
|
|
static u8 ocp_read_byte(struct r8152 *tp, u16 type, u16 index)
|
|
{
|
|
u32 data;
|
|
__le32 tmp;
|
|
u8 shift = index & 3;
|
|
|
|
index &= ~3;
|
|
|
|
generic_ocp_read(tp, index, sizeof(tmp), &tmp, type);
|
|
|
|
data = __le32_to_cpu(tmp);
|
|
data >>= (shift * 8);
|
|
data &= 0xff;
|
|
|
|
return (u8)data;
|
|
}
|
|
|
|
static void ocp_write_byte(struct r8152 *tp, u16 type, u16 index, u32 data)
|
|
{
|
|
u32 mask = 0xff;
|
|
__le32 tmp;
|
|
u16 byen = BYTE_EN_BYTE;
|
|
u8 shift = index & 3;
|
|
|
|
data &= mask;
|
|
|
|
if (index & 3) {
|
|
byen <<= shift;
|
|
mask <<= (shift * 8);
|
|
data <<= (shift * 8);
|
|
index &= ~3;
|
|
}
|
|
|
|
generic_ocp_read(tp, index, sizeof(tmp), &tmp, type);
|
|
|
|
data |= __le32_to_cpu(tmp) & ~mask;
|
|
tmp = __cpu_to_le32(data);
|
|
|
|
generic_ocp_write(tp, index, byen, sizeof(tmp), &tmp, type);
|
|
}
|
|
|
|
static void r8152_mdio_write(struct r8152 *tp, u32 reg_addr, u32 value)
|
|
{
|
|
u32 ocp_data;
|
|
int i;
|
|
|
|
ocp_data = PHYAR_FLAG | ((reg_addr & 0x1f) << 16) |
|
|
(value & 0xffff);
|
|
|
|
ocp_write_dword(tp, MCU_TYPE_PLA, PLA_PHYAR, ocp_data);
|
|
|
|
for (i = 20; i > 0; i--) {
|
|
udelay(25);
|
|
ocp_data = ocp_read_dword(tp, MCU_TYPE_PLA, PLA_PHYAR);
|
|
if (!(ocp_data & PHYAR_FLAG))
|
|
break;
|
|
}
|
|
udelay(20);
|
|
}
|
|
|
|
static int r8152_mdio_read(struct r8152 *tp, u32 reg_addr)
|
|
{
|
|
u32 ocp_data;
|
|
int i;
|
|
|
|
ocp_data = (reg_addr & 0x1f) << 16;
|
|
ocp_write_dword(tp, MCU_TYPE_PLA, PLA_PHYAR, ocp_data);
|
|
|
|
for (i = 20; i > 0; i--) {
|
|
udelay(25);
|
|
ocp_data = ocp_read_dword(tp, MCU_TYPE_PLA, PLA_PHYAR);
|
|
if (ocp_data & PHYAR_FLAG)
|
|
break;
|
|
}
|
|
udelay(20);
|
|
|
|
if (!(ocp_data & PHYAR_FLAG))
|
|
return -EAGAIN;
|
|
|
|
return (u16)(ocp_data & 0xffff);
|
|
}
|
|
|
|
static int read_mii_word(struct net_device *netdev, int phy_id, int reg)
|
|
{
|
|
struct r8152 *tp = netdev_priv(netdev);
|
|
|
|
if (phy_id != R8152_PHY_ID)
|
|
return -EINVAL;
|
|
|
|
return r8152_mdio_read(tp, reg);
|
|
}
|
|
|
|
static
|
|
void write_mii_word(struct net_device *netdev, int phy_id, int reg, int val)
|
|
{
|
|
struct r8152 *tp = netdev_priv(netdev);
|
|
|
|
if (phy_id != R8152_PHY_ID)
|
|
return;
|
|
|
|
r8152_mdio_write(tp, reg, val);
|
|
}
|
|
|
|
static void ocp_reg_write(struct r8152 *tp, u16 addr, u16 data)
|
|
{
|
|
u16 ocp_base, ocp_index;
|
|
|
|
ocp_base = addr & 0xf000;
|
|
if (ocp_base != tp->ocp_base) {
|
|
ocp_write_word(tp, MCU_TYPE_PLA, PLA_OCP_GPHY_BASE, ocp_base);
|
|
tp->ocp_base = ocp_base;
|
|
}
|
|
|
|
ocp_index = (addr & 0x0fff) | 0xb000;
|
|
ocp_write_word(tp, MCU_TYPE_PLA, ocp_index, data);
|
|
}
|
|
|
|
static
|
|
int r8152_submit_rx(struct r8152 *tp, struct rx_agg *agg, gfp_t mem_flags);
|
|
|
|
static inline void set_ethernet_addr(struct r8152 *tp)
|
|
{
|
|
struct net_device *dev = tp->netdev;
|
|
u8 node_id[8] = {0};
|
|
|
|
if (pla_ocp_read(tp, PLA_IDR, sizeof(node_id), node_id) < 0)
|
|
netif_notice(tp, probe, dev, "inet addr fail\n");
|
|
else {
|
|
memcpy(dev->dev_addr, node_id, dev->addr_len);
|
|
memcpy(dev->perm_addr, dev->dev_addr, dev->addr_len);
|
|
}
|
|
}
|
|
|
|
static int rtl8152_set_mac_address(struct net_device *netdev, void *p)
|
|
{
|
|
struct r8152 *tp = netdev_priv(netdev);
|
|
struct sockaddr *addr = p;
|
|
|
|
if (!is_valid_ether_addr(addr->sa_data))
|
|
return -EADDRNOTAVAIL;
|
|
|
|
memcpy(netdev->dev_addr, addr->sa_data, netdev->addr_len);
|
|
|
|
ocp_write_byte(tp, MCU_TYPE_PLA, PLA_CRWECR, CRWECR_CONFIG);
|
|
pla_ocp_write(tp, PLA_IDR, BYTE_EN_SIX_BYTES, 8, addr->sa_data);
|
|
ocp_write_byte(tp, MCU_TYPE_PLA, PLA_CRWECR, CRWECR_NORAML);
|
|
|
|
return 0;
|
|
}
|
|
|
|
static struct net_device_stats *rtl8152_get_stats(struct net_device *dev)
|
|
{
|
|
return &dev->stats;
|
|
}
|
|
|
|
static void read_bulk_callback(struct urb *urb)
|
|
{
|
|
struct net_device *netdev;
|
|
unsigned long flags;
|
|
int status = urb->status;
|
|
struct rx_agg *agg;
|
|
struct r8152 *tp;
|
|
int result;
|
|
|
|
agg = urb->context;
|
|
if (!agg)
|
|
return;
|
|
|
|
tp = agg->context;
|
|
if (!tp)
|
|
return;
|
|
|
|
if (test_bit(RTL8152_UNPLUG, &tp->flags))
|
|
return;
|
|
|
|
if (!test_bit(WORK_ENABLE, &tp->flags))
|
|
return;
|
|
|
|
netdev = tp->netdev;
|
|
|
|
/* When link down, the driver would cancel all bulks. */
|
|
/* This avoid the re-submitting bulk */
|
|
if (!netif_carrier_ok(netdev))
|
|
return;
|
|
|
|
switch (status) {
|
|
case 0:
|
|
if (urb->actual_length < ETH_ZLEN)
|
|
break;
|
|
|
|
spin_lock_irqsave(&tp->rx_lock, flags);
|
|
list_add_tail(&agg->list, &tp->rx_done);
|
|
spin_unlock_irqrestore(&tp->rx_lock, flags);
|
|
tasklet_schedule(&tp->tl);
|
|
return;
|
|
case -ESHUTDOWN:
|
|
set_bit(RTL8152_UNPLUG, &tp->flags);
|
|
netif_device_detach(tp->netdev);
|
|
return;
|
|
case -ENOENT:
|
|
return; /* the urb is in unlink state */
|
|
case -ETIME:
|
|
pr_warn_ratelimited("may be reset is needed?..\n");
|
|
break;
|
|
default:
|
|
pr_warn_ratelimited("Rx status %d\n", status);
|
|
break;
|
|
}
|
|
|
|
result = r8152_submit_rx(tp, agg, GFP_ATOMIC);
|
|
if (result == -ENODEV) {
|
|
netif_device_detach(tp->netdev);
|
|
} else if (result) {
|
|
spin_lock_irqsave(&tp->rx_lock, flags);
|
|
list_add_tail(&agg->list, &tp->rx_done);
|
|
spin_unlock_irqrestore(&tp->rx_lock, flags);
|
|
tasklet_schedule(&tp->tl);
|
|
}
|
|
}
|
|
|
|
static void write_bulk_callback(struct urb *urb)
|
|
{
|
|
struct net_device_stats *stats;
|
|
unsigned long flags;
|
|
struct tx_agg *agg;
|
|
struct r8152 *tp;
|
|
int status = urb->status;
|
|
|
|
agg = urb->context;
|
|
if (!agg)
|
|
return;
|
|
|
|
tp = agg->context;
|
|
if (!tp)
|
|
return;
|
|
|
|
stats = rtl8152_get_stats(tp->netdev);
|
|
if (status) {
|
|
pr_warn_ratelimited("Tx status %d\n", status);
|
|
stats->tx_errors += agg->skb_num;
|
|
} else {
|
|
stats->tx_packets += agg->skb_num;
|
|
stats->tx_bytes += agg->skb_len;
|
|
}
|
|
|
|
spin_lock_irqsave(&tp->tx_lock, flags);
|
|
list_add_tail(&agg->list, &tp->tx_free);
|
|
spin_unlock_irqrestore(&tp->tx_lock, flags);
|
|
|
|
if (!netif_carrier_ok(tp->netdev))
|
|
return;
|
|
|
|
if (!test_bit(WORK_ENABLE, &tp->flags))
|
|
return;
|
|
|
|
if (test_bit(RTL8152_UNPLUG, &tp->flags))
|
|
return;
|
|
|
|
if (!skb_queue_empty(&tp->tx_queue))
|
|
tasklet_schedule(&tp->tl);
|
|
}
|
|
|
|
static void intr_callback(struct urb *urb)
|
|
{
|
|
struct r8152 *tp;
|
|
__u16 *d;
|
|
int status = urb->status;
|
|
int res;
|
|
|
|
tp = urb->context;
|
|
if (!tp)
|
|
return;
|
|
|
|
if (!test_bit(WORK_ENABLE, &tp->flags))
|
|
return;
|
|
|
|
if (test_bit(RTL8152_UNPLUG, &tp->flags))
|
|
return;
|
|
|
|
switch (status) {
|
|
case 0: /* success */
|
|
break;
|
|
case -ECONNRESET: /* unlink */
|
|
case -ESHUTDOWN:
|
|
netif_device_detach(tp->netdev);
|
|
case -ENOENT:
|
|
return;
|
|
case -EOVERFLOW:
|
|
netif_info(tp, intr, tp->netdev, "intr status -EOVERFLOW\n");
|
|
goto resubmit;
|
|
/* -EPIPE: should clear the halt */
|
|
default:
|
|
netif_info(tp, intr, tp->netdev, "intr status %d\n", status);
|
|
goto resubmit;
|
|
}
|
|
|
|
d = urb->transfer_buffer;
|
|
if (INTR_LINK & __le16_to_cpu(d[0])) {
|
|
if (!(tp->speed & LINK_STATUS)) {
|
|
set_bit(RTL8152_LINK_CHG, &tp->flags);
|
|
schedule_delayed_work(&tp->schedule, 0);
|
|
}
|
|
} else {
|
|
if (tp->speed & LINK_STATUS) {
|
|
set_bit(RTL8152_LINK_CHG, &tp->flags);
|
|
schedule_delayed_work(&tp->schedule, 0);
|
|
}
|
|
}
|
|
|
|
resubmit:
|
|
res = usb_submit_urb(urb, GFP_ATOMIC);
|
|
if (res == -ENODEV)
|
|
netif_device_detach(tp->netdev);
|
|
else if (res)
|
|
netif_err(tp, intr, tp->netdev,
|
|
"can't resubmit intr, status %d\n", res);
|
|
}
|
|
|
|
static inline void *rx_agg_align(void *data)
|
|
{
|
|
return (void *)ALIGN((uintptr_t)data, 8);
|
|
}
|
|
|
|
static inline void *tx_agg_align(void *data)
|
|
{
|
|
return (void *)ALIGN((uintptr_t)data, 4);
|
|
}
|
|
|
|
static void free_all_mem(struct r8152 *tp)
|
|
{
|
|
int i;
|
|
|
|
for (i = 0; i < RTL8152_MAX_RX; i++) {
|
|
if (tp->rx_info[i].urb) {
|
|
usb_free_urb(tp->rx_info[i].urb);
|
|
tp->rx_info[i].urb = NULL;
|
|
}
|
|
|
|
if (tp->rx_info[i].buffer) {
|
|
kfree(tp->rx_info[i].buffer);
|
|
tp->rx_info[i].buffer = NULL;
|
|
tp->rx_info[i].head = NULL;
|
|
}
|
|
}
|
|
|
|
for (i = 0; i < RTL8152_MAX_TX; i++) {
|
|
if (tp->tx_info[i].urb) {
|
|
usb_free_urb(tp->tx_info[i].urb);
|
|
tp->tx_info[i].urb = NULL;
|
|
}
|
|
|
|
if (tp->tx_info[i].buffer) {
|
|
kfree(tp->tx_info[i].buffer);
|
|
tp->tx_info[i].buffer = NULL;
|
|
tp->tx_info[i].head = NULL;
|
|
}
|
|
}
|
|
|
|
if (tp->intr_urb) {
|
|
usb_free_urb(tp->intr_urb);
|
|
tp->intr_urb = NULL;
|
|
}
|
|
|
|
if (tp->intr_buff) {
|
|
kfree(tp->intr_buff);
|
|
tp->intr_buff = NULL;
|
|
}
|
|
}
|
|
|
|
static int alloc_all_mem(struct r8152 *tp)
|
|
{
|
|
struct net_device *netdev = tp->netdev;
|
|
struct usb_interface *intf = tp->intf;
|
|
struct usb_host_interface *alt = intf->cur_altsetting;
|
|
struct usb_host_endpoint *ep_intr = alt->endpoint + 2;
|
|
struct urb *urb;
|
|
int node, i;
|
|
u8 *buf;
|
|
|
|
node = netdev->dev.parent ? dev_to_node(netdev->dev.parent) : -1;
|
|
|
|
spin_lock_init(&tp->rx_lock);
|
|
spin_lock_init(&tp->tx_lock);
|
|
INIT_LIST_HEAD(&tp->rx_done);
|
|
INIT_LIST_HEAD(&tp->tx_free);
|
|
skb_queue_head_init(&tp->tx_queue);
|
|
|
|
for (i = 0; i < RTL8152_MAX_RX; i++) {
|
|
buf = kmalloc_node(rx_buf_sz, GFP_KERNEL, node);
|
|
if (!buf)
|
|
goto err1;
|
|
|
|
if (buf != rx_agg_align(buf)) {
|
|
kfree(buf);
|
|
buf = kmalloc_node(rx_buf_sz + 8, GFP_KERNEL, node);
|
|
if (!buf)
|
|
goto err1;
|
|
}
|
|
|
|
urb = usb_alloc_urb(0, GFP_KERNEL);
|
|
if (!urb) {
|
|
kfree(buf);
|
|
goto err1;
|
|
}
|
|
|
|
INIT_LIST_HEAD(&tp->rx_info[i].list);
|
|
tp->rx_info[i].context = tp;
|
|
tp->rx_info[i].urb = urb;
|
|
tp->rx_info[i].buffer = buf;
|
|
tp->rx_info[i].head = rx_agg_align(buf);
|
|
}
|
|
|
|
for (i = 0; i < RTL8152_MAX_TX; i++) {
|
|
buf = kmalloc_node(rx_buf_sz, GFP_KERNEL, node);
|
|
if (!buf)
|
|
goto err1;
|
|
|
|
if (buf != tx_agg_align(buf)) {
|
|
kfree(buf);
|
|
buf = kmalloc_node(rx_buf_sz + 4, GFP_KERNEL, node);
|
|
if (!buf)
|
|
goto err1;
|
|
}
|
|
|
|
urb = usb_alloc_urb(0, GFP_KERNEL);
|
|
if (!urb) {
|
|
kfree(buf);
|
|
goto err1;
|
|
}
|
|
|
|
INIT_LIST_HEAD(&tp->tx_info[i].list);
|
|
tp->tx_info[i].context = tp;
|
|
tp->tx_info[i].urb = urb;
|
|
tp->tx_info[i].buffer = buf;
|
|
tp->tx_info[i].head = tx_agg_align(buf);
|
|
|
|
list_add_tail(&tp->tx_info[i].list, &tp->tx_free);
|
|
}
|
|
|
|
tp->intr_urb = usb_alloc_urb(0, GFP_KERNEL);
|
|
if (!tp->intr_urb)
|
|
goto err1;
|
|
|
|
tp->intr_buff = kmalloc(INTBUFSIZE, GFP_KERNEL);
|
|
if (!tp->intr_buff)
|
|
goto err1;
|
|
|
|
tp->intr_interval = (int)ep_intr->desc.bInterval;
|
|
usb_fill_int_urb(tp->intr_urb, tp->udev, usb_rcvintpipe(tp->udev, 3),
|
|
tp->intr_buff, INTBUFSIZE, intr_callback,
|
|
tp, tp->intr_interval);
|
|
|
|
return 0;
|
|
|
|
err1:
|
|
free_all_mem(tp);
|
|
return -ENOMEM;
|
|
}
|
|
|
|
static struct tx_agg *r8152_get_tx_agg(struct r8152 *tp)
|
|
{
|
|
struct tx_agg *agg = NULL;
|
|
unsigned long flags;
|
|
|
|
spin_lock_irqsave(&tp->tx_lock, flags);
|
|
if (!list_empty(&tp->tx_free)) {
|
|
struct list_head *cursor;
|
|
|
|
cursor = tp->tx_free.next;
|
|
list_del_init(cursor);
|
|
agg = list_entry(cursor, struct tx_agg, list);
|
|
}
|
|
spin_unlock_irqrestore(&tp->tx_lock, flags);
|
|
|
|
return agg;
|
|
}
|
|
|
|
static void
|
|
r8152_tx_csum(struct r8152 *tp, struct tx_desc *desc, struct sk_buff *skb)
|
|
{
|
|
memset(desc, 0, sizeof(*desc));
|
|
|
|
desc->opts1 = cpu_to_le32((skb->len & TX_LEN_MASK) | TX_FS | TX_LS);
|
|
|
|
if (skb->ip_summed == CHECKSUM_PARTIAL) {
|
|
__be16 protocol;
|
|
u8 ip_protocol;
|
|
u32 opts2 = 0;
|
|
|
|
if (skb->protocol == htons(ETH_P_8021Q))
|
|
protocol = vlan_eth_hdr(skb)->h_vlan_encapsulated_proto;
|
|
else
|
|
protocol = skb->protocol;
|
|
|
|
switch (protocol) {
|
|
case htons(ETH_P_IP):
|
|
opts2 |= IPV4_CS;
|
|
ip_protocol = ip_hdr(skb)->protocol;
|
|
break;
|
|
|
|
case htons(ETH_P_IPV6):
|
|
opts2 |= IPV6_CS;
|
|
ip_protocol = ipv6_hdr(skb)->nexthdr;
|
|
break;
|
|
|
|
default:
|
|
ip_protocol = IPPROTO_RAW;
|
|
break;
|
|
}
|
|
|
|
if (ip_protocol == IPPROTO_TCP) {
|
|
opts2 |= TCP_CS;
|
|
opts2 |= (skb_transport_offset(skb) & 0x7fff) << 17;
|
|
} else if (ip_protocol == IPPROTO_UDP) {
|
|
opts2 |= UDP_CS;
|
|
} else {
|
|
WARN_ON_ONCE(1);
|
|
}
|
|
|
|
desc->opts2 = cpu_to_le32(opts2);
|
|
}
|
|
}
|
|
|
|
static int r8152_tx_agg_fill(struct r8152 *tp, struct tx_agg *agg)
|
|
{
|
|
u32 remain;
|
|
u8 *tx_data;
|
|
|
|
tx_data = agg->head;
|
|
agg->skb_num = agg->skb_len = 0;
|
|
remain = rx_buf_sz - sizeof(struct tx_desc);
|
|
|
|
while (remain >= ETH_ZLEN) {
|
|
struct tx_desc *tx_desc;
|
|
struct sk_buff *skb;
|
|
unsigned int len;
|
|
|
|
skb = skb_dequeue(&tp->tx_queue);
|
|
if (!skb)
|
|
break;
|
|
|
|
len = skb->len;
|
|
if (remain < len) {
|
|
skb_queue_head(&tp->tx_queue, skb);
|
|
break;
|
|
}
|
|
|
|
tx_desc = (struct tx_desc *)tx_data;
|
|
tx_data += sizeof(*tx_desc);
|
|
|
|
r8152_tx_csum(tp, tx_desc, skb);
|
|
memcpy(tx_data, skb->data, len);
|
|
agg->skb_num++;
|
|
agg->skb_len += len;
|
|
dev_kfree_skb_any(skb);
|
|
|
|
tx_data = tx_agg_align(tx_data + len);
|
|
remain = rx_buf_sz - sizeof(*tx_desc) -
|
|
(u32)((void *)tx_data - agg->head);
|
|
}
|
|
|
|
usb_fill_bulk_urb(agg->urb, tp->udev, usb_sndbulkpipe(tp->udev, 2),
|
|
agg->head, (int)(tx_data - (u8 *)agg->head),
|
|
(usb_complete_t)write_bulk_callback, agg);
|
|
|
|
return usb_submit_urb(agg->urb, GFP_ATOMIC);
|
|
}
|
|
|
|
static void rx_bottom(struct r8152 *tp)
|
|
{
|
|
unsigned long flags;
|
|
struct list_head *cursor, *next;
|
|
|
|
spin_lock_irqsave(&tp->rx_lock, flags);
|
|
list_for_each_safe(cursor, next, &tp->rx_done) {
|
|
struct rx_desc *rx_desc;
|
|
struct rx_agg *agg;
|
|
unsigned pkt_len;
|
|
int len_used = 0;
|
|
struct urb *urb;
|
|
u8 *rx_data;
|
|
int ret;
|
|
|
|
list_del_init(cursor);
|
|
spin_unlock_irqrestore(&tp->rx_lock, flags);
|
|
|
|
agg = list_entry(cursor, struct rx_agg, list);
|
|
urb = agg->urb;
|
|
if (urb->actual_length < ETH_ZLEN)
|
|
goto submit;
|
|
|
|
rx_desc = agg->head;
|
|
rx_data = agg->head;
|
|
pkt_len = le32_to_cpu(rx_desc->opts1) & RX_LEN_MASK;
|
|
len_used += sizeof(struct rx_desc) + pkt_len;
|
|
|
|
while (urb->actual_length >= len_used) {
|
|
struct net_device *netdev = tp->netdev;
|
|
struct net_device_stats *stats;
|
|
struct sk_buff *skb;
|
|
|
|
if (pkt_len < ETH_ZLEN)
|
|
break;
|
|
|
|
stats = rtl8152_get_stats(netdev);
|
|
|
|
pkt_len -= 4; /* CRC */
|
|
rx_data += sizeof(struct rx_desc);
|
|
|
|
skb = netdev_alloc_skb_ip_align(netdev, pkt_len);
|
|
if (!skb) {
|
|
stats->rx_dropped++;
|
|
break;
|
|
}
|
|
memcpy(skb->data, rx_data, pkt_len);
|
|
skb_put(skb, pkt_len);
|
|
skb->protocol = eth_type_trans(skb, netdev);
|
|
netif_rx(skb);
|
|
stats->rx_packets++;
|
|
stats->rx_bytes += pkt_len;
|
|
|
|
rx_data = rx_agg_align(rx_data + pkt_len + 4);
|
|
rx_desc = (struct rx_desc *)rx_data;
|
|
pkt_len = le32_to_cpu(rx_desc->opts1) & RX_LEN_MASK;
|
|
len_used = (int)(rx_data - (u8 *)agg->head);
|
|
len_used += sizeof(struct rx_desc) + pkt_len;
|
|
}
|
|
|
|
submit:
|
|
ret = r8152_submit_rx(tp, agg, GFP_ATOMIC);
|
|
spin_lock_irqsave(&tp->rx_lock, flags);
|
|
if (ret && ret != -ENODEV) {
|
|
list_add_tail(&agg->list, next);
|
|
tasklet_schedule(&tp->tl);
|
|
}
|
|
}
|
|
spin_unlock_irqrestore(&tp->rx_lock, flags);
|
|
}
|
|
|
|
static void tx_bottom(struct r8152 *tp)
|
|
{
|
|
int res;
|
|
|
|
do {
|
|
struct tx_agg *agg;
|
|
|
|
if (skb_queue_empty(&tp->tx_queue))
|
|
break;
|
|
|
|
agg = r8152_get_tx_agg(tp);
|
|
if (!agg)
|
|
break;
|
|
|
|
res = r8152_tx_agg_fill(tp, agg);
|
|
if (res) {
|
|
struct net_device_stats *stats;
|
|
struct net_device *netdev;
|
|
unsigned long flags;
|
|
|
|
netdev = tp->netdev;
|
|
stats = rtl8152_get_stats(netdev);
|
|
|
|
if (res == -ENODEV) {
|
|
netif_device_detach(netdev);
|
|
} else {
|
|
netif_warn(tp, tx_err, netdev,
|
|
"failed tx_urb %d\n", res);
|
|
stats->tx_dropped += agg->skb_num;
|
|
spin_lock_irqsave(&tp->tx_lock, flags);
|
|
list_add_tail(&agg->list, &tp->tx_free);
|
|
spin_unlock_irqrestore(&tp->tx_lock, flags);
|
|
}
|
|
}
|
|
} while (res == 0);
|
|
}
|
|
|
|
static void bottom_half(unsigned long data)
|
|
{
|
|
struct r8152 *tp;
|
|
|
|
tp = (struct r8152 *)data;
|
|
|
|
if (test_bit(RTL8152_UNPLUG, &tp->flags))
|
|
return;
|
|
|
|
if (!test_bit(WORK_ENABLE, &tp->flags))
|
|
return;
|
|
|
|
/* When link down, the driver would cancel all bulks. */
|
|
/* This avoid the re-submitting bulk */
|
|
if (!netif_carrier_ok(tp->netdev))
|
|
return;
|
|
|
|
rx_bottom(tp);
|
|
tx_bottom(tp);
|
|
}
|
|
|
|
static
|
|
int r8152_submit_rx(struct r8152 *tp, struct rx_agg *agg, gfp_t mem_flags)
|
|
{
|
|
usb_fill_bulk_urb(agg->urb, tp->udev, usb_rcvbulkpipe(tp->udev, 1),
|
|
agg->head, rx_buf_sz,
|
|
(usb_complete_t)read_bulk_callback, agg);
|
|
|
|
return usb_submit_urb(agg->urb, mem_flags);
|
|
}
|
|
|
|
static void rtl8152_tx_timeout(struct net_device *netdev)
|
|
{
|
|
struct r8152 *tp = netdev_priv(netdev);
|
|
int i;
|
|
|
|
netif_warn(tp, tx_err, netdev, "Tx timeout.\n");
|
|
for (i = 0; i < RTL8152_MAX_TX; i++)
|
|
usb_unlink_urb(tp->tx_info[i].urb);
|
|
}
|
|
|
|
static void rtl8152_set_rx_mode(struct net_device *netdev)
|
|
{
|
|
struct r8152 *tp = netdev_priv(netdev);
|
|
|
|
if (tp->speed & LINK_STATUS) {
|
|
set_bit(RTL8152_SET_RX_MODE, &tp->flags);
|
|
schedule_delayed_work(&tp->schedule, 0);
|
|
}
|
|
}
|
|
|
|
static void _rtl8152_set_rx_mode(struct net_device *netdev)
|
|
{
|
|
struct r8152 *tp = netdev_priv(netdev);
|
|
u32 mc_filter[2]; /* Multicast hash filter */
|
|
__le32 tmp[2];
|
|
u32 ocp_data;
|
|
|
|
clear_bit(RTL8152_SET_RX_MODE, &tp->flags);
|
|
netif_stop_queue(netdev);
|
|
ocp_data = ocp_read_dword(tp, MCU_TYPE_PLA, PLA_RCR);
|
|
ocp_data &= ~RCR_ACPT_ALL;
|
|
ocp_data |= RCR_AB | RCR_APM;
|
|
|
|
if (netdev->flags & IFF_PROMISC) {
|
|
/* Unconditionally log net taps. */
|
|
netif_notice(tp, link, netdev, "Promiscuous mode enabled\n");
|
|
ocp_data |= RCR_AM | RCR_AAP;
|
|
mc_filter[1] = mc_filter[0] = 0xffffffff;
|
|
} else if ((netdev_mc_count(netdev) > multicast_filter_limit) ||
|
|
(netdev->flags & IFF_ALLMULTI)) {
|
|
/* Too many to filter perfectly -- accept all multicasts. */
|
|
ocp_data |= RCR_AM;
|
|
mc_filter[1] = mc_filter[0] = 0xffffffff;
|
|
} else {
|
|
struct netdev_hw_addr *ha;
|
|
|
|
mc_filter[1] = mc_filter[0] = 0;
|
|
netdev_for_each_mc_addr(ha, netdev) {
|
|
int bit_nr = ether_crc(ETH_ALEN, ha->addr) >> 26;
|
|
mc_filter[bit_nr >> 5] |= 1 << (bit_nr & 31);
|
|
ocp_data |= RCR_AM;
|
|
}
|
|
}
|
|
|
|
tmp[0] = __cpu_to_le32(swab32(mc_filter[1]));
|
|
tmp[1] = __cpu_to_le32(swab32(mc_filter[0]));
|
|
|
|
pla_ocp_write(tp, PLA_MAR, BYTE_EN_DWORD, sizeof(tmp), tmp);
|
|
ocp_write_dword(tp, MCU_TYPE_PLA, PLA_RCR, ocp_data);
|
|
netif_wake_queue(netdev);
|
|
}
|
|
|
|
static netdev_tx_t rtl8152_start_xmit(struct sk_buff *skb,
|
|
struct net_device *netdev)
|
|
{
|
|
struct r8152 *tp = netdev_priv(netdev);
|
|
struct net_device_stats *stats = rtl8152_get_stats(netdev);
|
|
unsigned long flags;
|
|
struct tx_agg *agg = NULL;
|
|
struct tx_desc *tx_desc;
|
|
unsigned int len;
|
|
u8 *tx_data;
|
|
int res;
|
|
|
|
skb_tx_timestamp(skb);
|
|
|
|
/* If tx_queue is not empty, it means at least one previous packt */
|
|
/* is waiting for sending. Don't send current one before it. */
|
|
if (skb_queue_empty(&tp->tx_queue))
|
|
agg = r8152_get_tx_agg(tp);
|
|
|
|
if (!agg) {
|
|
skb_queue_tail(&tp->tx_queue, skb);
|
|
return NETDEV_TX_OK;
|
|
}
|
|
|
|
tx_desc = (struct tx_desc *)agg->head;
|
|
tx_data = agg->head + sizeof(*tx_desc);
|
|
agg->skb_num = agg->skb_len = 0;
|
|
|
|
len = skb->len;
|
|
r8152_tx_csum(tp, tx_desc, skb);
|
|
memcpy(tx_data, skb->data, len);
|
|
dev_kfree_skb_any(skb);
|
|
agg->skb_num++;
|
|
agg->skb_len += len;
|
|
usb_fill_bulk_urb(agg->urb, tp->udev, usb_sndbulkpipe(tp->udev, 2),
|
|
agg->head, len + sizeof(*tx_desc),
|
|
(usb_complete_t)write_bulk_callback, agg);
|
|
res = usb_submit_urb(agg->urb, GFP_ATOMIC);
|
|
if (res) {
|
|
/* Can we get/handle EPIPE here? */
|
|
if (res == -ENODEV) {
|
|
netif_device_detach(tp->netdev);
|
|
} else {
|
|
netif_warn(tp, tx_err, netdev,
|
|
"failed tx_urb %d\n", res);
|
|
stats->tx_dropped++;
|
|
spin_lock_irqsave(&tp->tx_lock, flags);
|
|
list_add_tail(&agg->list, &tp->tx_free);
|
|
spin_unlock_irqrestore(&tp->tx_lock, flags);
|
|
}
|
|
}
|
|
|
|
return NETDEV_TX_OK;
|
|
}
|
|
|
|
static void r8152b_reset_packet_filter(struct r8152 *tp)
|
|
{
|
|
u32 ocp_data;
|
|
|
|
ocp_data = ocp_read_word(tp, MCU_TYPE_PLA, PLA_FMC);
|
|
ocp_data &= ~FMC_FCR_MCU_EN;
|
|
ocp_write_word(tp, MCU_TYPE_PLA, PLA_FMC, ocp_data);
|
|
ocp_data |= FMC_FCR_MCU_EN;
|
|
ocp_write_word(tp, MCU_TYPE_PLA, PLA_FMC, ocp_data);
|
|
}
|
|
|
|
static void rtl8152_nic_reset(struct r8152 *tp)
|
|
{
|
|
int i;
|
|
|
|
ocp_write_byte(tp, MCU_TYPE_PLA, PLA_CR, CR_RST);
|
|
|
|
for (i = 0; i < 1000; i++) {
|
|
if (!(ocp_read_byte(tp, MCU_TYPE_PLA, PLA_CR) & CR_RST))
|
|
break;
|
|
udelay(100);
|
|
}
|
|
}
|
|
|
|
static inline u8 rtl8152_get_speed(struct r8152 *tp)
|
|
{
|
|
return ocp_read_byte(tp, MCU_TYPE_PLA, PLA_PHYSTATUS);
|
|
}
|
|
|
|
static int rtl8152_enable(struct r8152 *tp)
|
|
{
|
|
u32 ocp_data;
|
|
int i, ret;
|
|
u8 speed;
|
|
|
|
speed = rtl8152_get_speed(tp);
|
|
if (speed & _10bps) {
|
|
ocp_data = ocp_read_word(tp, MCU_TYPE_PLA, PLA_EEEP_CR);
|
|
ocp_data |= EEEP_CR_EEEP_TX;
|
|
ocp_write_word(tp, MCU_TYPE_PLA, PLA_EEEP_CR, ocp_data);
|
|
} else {
|
|
ocp_data = ocp_read_word(tp, MCU_TYPE_PLA, PLA_EEEP_CR);
|
|
ocp_data &= ~EEEP_CR_EEEP_TX;
|
|
ocp_write_word(tp, MCU_TYPE_PLA, PLA_EEEP_CR, ocp_data);
|
|
}
|
|
|
|
r8152b_reset_packet_filter(tp);
|
|
|
|
ocp_data = ocp_read_byte(tp, MCU_TYPE_PLA, PLA_CR);
|
|
ocp_data |= CR_RE | CR_TE;
|
|
ocp_write_byte(tp, MCU_TYPE_PLA, PLA_CR, ocp_data);
|
|
|
|
ocp_data = ocp_read_word(tp, MCU_TYPE_PLA, PLA_MISC_1);
|
|
ocp_data &= ~RXDY_GATED_EN;
|
|
ocp_write_word(tp, MCU_TYPE_PLA, PLA_MISC_1, ocp_data);
|
|
|
|
INIT_LIST_HEAD(&tp->rx_done);
|
|
ret = 0;
|
|
for (i = 0; i < RTL8152_MAX_RX; i++) {
|
|
INIT_LIST_HEAD(&tp->rx_info[i].list);
|
|
ret |= r8152_submit_rx(tp, &tp->rx_info[i], GFP_KERNEL);
|
|
}
|
|
|
|
return ret;
|
|
}
|
|
|
|
static void rtl8152_disable(struct r8152 *tp)
|
|
{
|
|
struct net_device_stats *stats = rtl8152_get_stats(tp->netdev);
|
|
struct sk_buff *skb;
|
|
u32 ocp_data;
|
|
int i;
|
|
|
|
ocp_data = ocp_read_dword(tp, MCU_TYPE_PLA, PLA_RCR);
|
|
ocp_data &= ~RCR_ACPT_ALL;
|
|
ocp_write_dword(tp, MCU_TYPE_PLA, PLA_RCR, ocp_data);
|
|
|
|
while ((skb = skb_dequeue(&tp->tx_queue))) {
|
|
dev_kfree_skb(skb);
|
|
stats->tx_dropped++;
|
|
}
|
|
|
|
for (i = 0; i < RTL8152_MAX_TX; i++)
|
|
usb_kill_urb(tp->tx_info[i].urb);
|
|
|
|
ocp_data = ocp_read_word(tp, MCU_TYPE_PLA, PLA_MISC_1);
|
|
ocp_data |= RXDY_GATED_EN;
|
|
ocp_write_word(tp, MCU_TYPE_PLA, PLA_MISC_1, ocp_data);
|
|
|
|
for (i = 0; i < 1000; i++) {
|
|
ocp_data = ocp_read_byte(tp, MCU_TYPE_PLA, PLA_OOB_CTRL);
|
|
if ((ocp_data & FIFO_EMPTY) == FIFO_EMPTY)
|
|
break;
|
|
mdelay(1);
|
|
}
|
|
|
|
for (i = 0; i < 1000; i++) {
|
|
if (ocp_read_word(tp, MCU_TYPE_PLA, PLA_TCR0) & TCR0_TX_EMPTY)
|
|
break;
|
|
mdelay(1);
|
|
}
|
|
|
|
for (i = 0; i < RTL8152_MAX_RX; i++)
|
|
usb_kill_urb(tp->rx_info[i].urb);
|
|
|
|
rtl8152_nic_reset(tp);
|
|
}
|
|
|
|
static void r8152b_exit_oob(struct r8152 *tp)
|
|
{
|
|
u32 ocp_data;
|
|
int i;
|
|
|
|
ocp_data = ocp_read_dword(tp, MCU_TYPE_PLA, PLA_RCR);
|
|
ocp_data &= ~RCR_ACPT_ALL;
|
|
ocp_write_dword(tp, MCU_TYPE_PLA, PLA_RCR, ocp_data);
|
|
|
|
ocp_data = ocp_read_word(tp, MCU_TYPE_PLA, PLA_MISC_1);
|
|
ocp_data |= RXDY_GATED_EN;
|
|
ocp_write_word(tp, MCU_TYPE_PLA, PLA_MISC_1, ocp_data);
|
|
|
|
ocp_write_byte(tp, MCU_TYPE_PLA, PLA_CRWECR, CRWECR_NORAML);
|
|
ocp_write_byte(tp, MCU_TYPE_PLA, PLA_CR, 0x00);
|
|
|
|
ocp_data = ocp_read_byte(tp, MCU_TYPE_PLA, PLA_OOB_CTRL);
|
|
ocp_data &= ~NOW_IS_OOB;
|
|
ocp_write_byte(tp, MCU_TYPE_PLA, PLA_OOB_CTRL, ocp_data);
|
|
|
|
ocp_data = ocp_read_word(tp, MCU_TYPE_PLA, PLA_SFF_STS_7);
|
|
ocp_data &= ~MCU_BORW_EN;
|
|
ocp_write_word(tp, MCU_TYPE_PLA, PLA_SFF_STS_7, ocp_data);
|
|
|
|
for (i = 0; i < 1000; i++) {
|
|
ocp_data = ocp_read_byte(tp, MCU_TYPE_PLA, PLA_OOB_CTRL);
|
|
if (ocp_data & LINK_LIST_READY)
|
|
break;
|
|
mdelay(1);
|
|
}
|
|
|
|
ocp_data = ocp_read_word(tp, MCU_TYPE_PLA, PLA_SFF_STS_7);
|
|
ocp_data |= RE_INIT_LL;
|
|
ocp_write_word(tp, MCU_TYPE_PLA, PLA_SFF_STS_7, ocp_data);
|
|
|
|
for (i = 0; i < 1000; i++) {
|
|
ocp_data = ocp_read_byte(tp, MCU_TYPE_PLA, PLA_OOB_CTRL);
|
|
if (ocp_data & LINK_LIST_READY)
|
|
break;
|
|
mdelay(1);
|
|
}
|
|
|
|
rtl8152_nic_reset(tp);
|
|
|
|
/* rx share fifo credit full threshold */
|
|
ocp_write_dword(tp, MCU_TYPE_PLA, PLA_RXFIFO_CTRL0, RXFIFO_THR1_NORMAL);
|
|
|
|
ocp_data = ocp_read_word(tp, MCU_TYPE_USB, USB_DEV_STAT);
|
|
ocp_data &= STAT_SPEED_MASK;
|
|
if (ocp_data == STAT_SPEED_FULL) {
|
|
/* rx share fifo credit near full threshold */
|
|
ocp_write_dword(tp, MCU_TYPE_PLA, PLA_RXFIFO_CTRL1,
|
|
RXFIFO_THR2_FULL);
|
|
ocp_write_dword(tp, MCU_TYPE_PLA, PLA_RXFIFO_CTRL2,
|
|
RXFIFO_THR3_FULL);
|
|
} else {
|
|
/* rx share fifo credit near full threshold */
|
|
ocp_write_dword(tp, MCU_TYPE_PLA, PLA_RXFIFO_CTRL1,
|
|
RXFIFO_THR2_HIGH);
|
|
ocp_write_dword(tp, MCU_TYPE_PLA, PLA_RXFIFO_CTRL2,
|
|
RXFIFO_THR3_HIGH);
|
|
}
|
|
|
|
/* TX share fifo free credit full threshold */
|
|
ocp_write_dword(tp, MCU_TYPE_PLA, PLA_TXFIFO_CTRL, TXFIFO_THR_NORMAL);
|
|
|
|
ocp_write_byte(tp, MCU_TYPE_USB, USB_TX_AGG, TX_AGG_MAX_THRESHOLD);
|
|
ocp_write_dword(tp, MCU_TYPE_USB, USB_RX_BUF_TH, RX_BUF_THR);
|
|
ocp_write_dword(tp, MCU_TYPE_USB, USB_TX_DMA,
|
|
TEST_MODE_DISABLE | TX_SIZE_ADJUST1);
|
|
|
|
ocp_data = ocp_read_word(tp, MCU_TYPE_PLA, PLA_CPCR);
|
|
ocp_data &= ~CPCR_RX_VLAN;
|
|
ocp_write_word(tp, MCU_TYPE_PLA, PLA_CPCR, ocp_data);
|
|
|
|
ocp_write_word(tp, MCU_TYPE_PLA, PLA_RMS, RTL8152_RMS);
|
|
|
|
ocp_data = ocp_read_word(tp, MCU_TYPE_PLA, PLA_TCR0);
|
|
ocp_data |= TCR0_AUTO_FIFO;
|
|
ocp_write_word(tp, MCU_TYPE_PLA, PLA_TCR0, ocp_data);
|
|
}
|
|
|
|
static void r8152b_enter_oob(struct r8152 *tp)
|
|
{
|
|
u32 ocp_data;
|
|
int i;
|
|
|
|
ocp_data = ocp_read_byte(tp, MCU_TYPE_PLA, PLA_OOB_CTRL);
|
|
ocp_data &= ~NOW_IS_OOB;
|
|
ocp_write_byte(tp, MCU_TYPE_PLA, PLA_OOB_CTRL, ocp_data);
|
|
|
|
ocp_write_dword(tp, MCU_TYPE_PLA, PLA_RXFIFO_CTRL0, RXFIFO_THR1_OOB);
|
|
ocp_write_dword(tp, MCU_TYPE_PLA, PLA_RXFIFO_CTRL1, RXFIFO_THR2_OOB);
|
|
ocp_write_dword(tp, MCU_TYPE_PLA, PLA_RXFIFO_CTRL2, RXFIFO_THR3_OOB);
|
|
|
|
rtl8152_disable(tp);
|
|
|
|
for (i = 0; i < 1000; i++) {
|
|
ocp_data = ocp_read_byte(tp, MCU_TYPE_PLA, PLA_OOB_CTRL);
|
|
if (ocp_data & LINK_LIST_READY)
|
|
break;
|
|
mdelay(1);
|
|
}
|
|
|
|
ocp_data = ocp_read_word(tp, MCU_TYPE_PLA, PLA_SFF_STS_7);
|
|
ocp_data |= RE_INIT_LL;
|
|
ocp_write_word(tp, MCU_TYPE_PLA, PLA_SFF_STS_7, ocp_data);
|
|
|
|
for (i = 0; i < 1000; i++) {
|
|
ocp_data = ocp_read_byte(tp, MCU_TYPE_PLA, PLA_OOB_CTRL);
|
|
if (ocp_data & LINK_LIST_READY)
|
|
break;
|
|
mdelay(1);
|
|
}
|
|
|
|
ocp_write_word(tp, MCU_TYPE_PLA, PLA_RMS, RTL8152_RMS);
|
|
|
|
ocp_data = ocp_read_word(tp, MCU_TYPE_PLA, PLA_CFG_WOL);
|
|
ocp_data |= MAGIC_EN;
|
|
ocp_write_word(tp, MCU_TYPE_PLA, PLA_CFG_WOL, ocp_data);
|
|
|
|
ocp_data = ocp_read_word(tp, MCU_TYPE_PLA, PLA_CPCR);
|
|
ocp_data |= CPCR_RX_VLAN;
|
|
ocp_write_word(tp, MCU_TYPE_PLA, PLA_CPCR, ocp_data);
|
|
|
|
ocp_data = ocp_read_word(tp, MCU_TYPE_PLA, PAL_BDC_CR);
|
|
ocp_data |= ALDPS_PROXY_MODE;
|
|
ocp_write_word(tp, MCU_TYPE_PLA, PAL_BDC_CR, ocp_data);
|
|
|
|
ocp_data = ocp_read_byte(tp, MCU_TYPE_PLA, PLA_OOB_CTRL);
|
|
ocp_data |= NOW_IS_OOB | DIS_MCU_CLROOB;
|
|
ocp_write_byte(tp, MCU_TYPE_PLA, PLA_OOB_CTRL, ocp_data);
|
|
|
|
ocp_write_byte(tp, MCU_TYPE_PLA, PLA_CONFIG5, LAN_WAKE_EN);
|
|
|
|
ocp_data = ocp_read_word(tp, MCU_TYPE_PLA, PLA_MISC_1);
|
|
ocp_data &= ~RXDY_GATED_EN;
|
|
ocp_write_word(tp, MCU_TYPE_PLA, PLA_MISC_1, ocp_data);
|
|
|
|
ocp_data = ocp_read_dword(tp, MCU_TYPE_PLA, PLA_RCR);
|
|
ocp_data |= RCR_APM | RCR_AM | RCR_AB;
|
|
ocp_write_dword(tp, MCU_TYPE_PLA, PLA_RCR, ocp_data);
|
|
}
|
|
|
|
static void r8152b_disable_aldps(struct r8152 *tp)
|
|
{
|
|
ocp_reg_write(tp, OCP_ALDPS_CONFIG, ENPDNPS | LINKENA | DIS_SDSAVE);
|
|
msleep(20);
|
|
}
|
|
|
|
static inline void r8152b_enable_aldps(struct r8152 *tp)
|
|
{
|
|
ocp_reg_write(tp, OCP_ALDPS_CONFIG, ENPWRSAVE | ENPDNPS |
|
|
LINKENA | DIS_SDSAVE);
|
|
}
|
|
|
|
static int rtl8152_set_speed(struct r8152 *tp, u8 autoneg, u16 speed, u8 duplex)
|
|
{
|
|
u16 bmcr, anar;
|
|
int ret = 0;
|
|
|
|
cancel_delayed_work_sync(&tp->schedule);
|
|
anar = r8152_mdio_read(tp, MII_ADVERTISE);
|
|
anar &= ~(ADVERTISE_10HALF | ADVERTISE_10FULL |
|
|
ADVERTISE_100HALF | ADVERTISE_100FULL);
|
|
|
|
if (autoneg == AUTONEG_DISABLE) {
|
|
if (speed == SPEED_10) {
|
|
bmcr = 0;
|
|
anar |= ADVERTISE_10HALF | ADVERTISE_10FULL;
|
|
} else if (speed == SPEED_100) {
|
|
bmcr = BMCR_SPEED100;
|
|
anar |= ADVERTISE_100HALF | ADVERTISE_100FULL;
|
|
} else {
|
|
ret = -EINVAL;
|
|
goto out;
|
|
}
|
|
|
|
if (duplex == DUPLEX_FULL)
|
|
bmcr |= BMCR_FULLDPLX;
|
|
} else {
|
|
if (speed == SPEED_10) {
|
|
if (duplex == DUPLEX_FULL)
|
|
anar |= ADVERTISE_10HALF | ADVERTISE_10FULL;
|
|
else
|
|
anar |= ADVERTISE_10HALF;
|
|
} else if (speed == SPEED_100) {
|
|
if (duplex == DUPLEX_FULL) {
|
|
anar |= ADVERTISE_10HALF | ADVERTISE_10FULL;
|
|
anar |= ADVERTISE_100HALF | ADVERTISE_100FULL;
|
|
} else {
|
|
anar |= ADVERTISE_10HALF;
|
|
anar |= ADVERTISE_100HALF;
|
|
}
|
|
} else {
|
|
ret = -EINVAL;
|
|
goto out;
|
|
}
|
|
|
|
bmcr = BMCR_ANENABLE | BMCR_ANRESTART;
|
|
}
|
|
|
|
r8152_mdio_write(tp, MII_ADVERTISE, anar);
|
|
r8152_mdio_write(tp, MII_BMCR, bmcr);
|
|
|
|
out:
|
|
|
|
return ret;
|
|
}
|
|
|
|
static void rtl8152_down(struct r8152 *tp)
|
|
{
|
|
u32 ocp_data;
|
|
|
|
ocp_data = ocp_read_word(tp, MCU_TYPE_USB, USB_UPS_CTRL);
|
|
ocp_data &= ~POWER_CUT;
|
|
ocp_write_word(tp, MCU_TYPE_USB, USB_UPS_CTRL, ocp_data);
|
|
|
|
r8152b_disable_aldps(tp);
|
|
r8152b_enter_oob(tp);
|
|
r8152b_enable_aldps(tp);
|
|
}
|
|
|
|
static void set_carrier(struct r8152 *tp)
|
|
{
|
|
struct net_device *netdev = tp->netdev;
|
|
u8 speed;
|
|
|
|
clear_bit(RTL8152_LINK_CHG, &tp->flags);
|
|
speed = rtl8152_get_speed(tp);
|
|
|
|
if (speed & LINK_STATUS) {
|
|
if (!(tp->speed & LINK_STATUS)) {
|
|
rtl8152_enable(tp);
|
|
set_bit(RTL8152_SET_RX_MODE, &tp->flags);
|
|
netif_carrier_on(netdev);
|
|
}
|
|
} else {
|
|
if (tp->speed & LINK_STATUS) {
|
|
netif_carrier_off(netdev);
|
|
tasklet_disable(&tp->tl);
|
|
rtl8152_disable(tp);
|
|
tasklet_enable(&tp->tl);
|
|
}
|
|
}
|
|
tp->speed = speed;
|
|
}
|
|
|
|
static void rtl_work_func_t(struct work_struct *work)
|
|
{
|
|
struct r8152 *tp = container_of(work, struct r8152, schedule.work);
|
|
|
|
if (!test_bit(WORK_ENABLE, &tp->flags))
|
|
goto out1;
|
|
|
|
if (test_bit(RTL8152_UNPLUG, &tp->flags))
|
|
goto out1;
|
|
|
|
if (test_bit(RTL8152_LINK_CHG, &tp->flags))
|
|
set_carrier(tp);
|
|
|
|
if (test_bit(RTL8152_SET_RX_MODE, &tp->flags))
|
|
_rtl8152_set_rx_mode(tp->netdev);
|
|
|
|
out1:
|
|
return;
|
|
}
|
|
|
|
static int rtl8152_open(struct net_device *netdev)
|
|
{
|
|
struct r8152 *tp = netdev_priv(netdev);
|
|
int res = 0;
|
|
|
|
res = usb_submit_urb(tp->intr_urb, GFP_KERNEL);
|
|
if (res) {
|
|
if (res == -ENODEV)
|
|
netif_device_detach(tp->netdev);
|
|
netif_warn(tp, ifup, netdev,
|
|
"intr_urb submit failed: %d\n", res);
|
|
return res;
|
|
}
|
|
|
|
rtl8152_set_speed(tp, AUTONEG_ENABLE, SPEED_100, DUPLEX_FULL);
|
|
tp->speed = 0;
|
|
netif_carrier_off(netdev);
|
|
netif_start_queue(netdev);
|
|
set_bit(WORK_ENABLE, &tp->flags);
|
|
|
|
return res;
|
|
}
|
|
|
|
static int rtl8152_close(struct net_device *netdev)
|
|
{
|
|
struct r8152 *tp = netdev_priv(netdev);
|
|
int res = 0;
|
|
|
|
usb_kill_urb(tp->intr_urb);
|
|
clear_bit(WORK_ENABLE, &tp->flags);
|
|
cancel_delayed_work_sync(&tp->schedule);
|
|
netif_stop_queue(netdev);
|
|
tasklet_disable(&tp->tl);
|
|
rtl8152_disable(tp);
|
|
tasklet_enable(&tp->tl);
|
|
|
|
return res;
|
|
}
|
|
|
|
static void rtl_clear_bp(struct r8152 *tp)
|
|
{
|
|
ocp_write_dword(tp, MCU_TYPE_PLA, PLA_BP_0, 0);
|
|
ocp_write_dword(tp, MCU_TYPE_PLA, PLA_BP_2, 0);
|
|
ocp_write_dword(tp, MCU_TYPE_PLA, PLA_BP_4, 0);
|
|
ocp_write_dword(tp, MCU_TYPE_PLA, PLA_BP_6, 0);
|
|
ocp_write_dword(tp, MCU_TYPE_USB, USB_BP_0, 0);
|
|
ocp_write_dword(tp, MCU_TYPE_USB, USB_BP_2, 0);
|
|
ocp_write_dword(tp, MCU_TYPE_USB, USB_BP_4, 0);
|
|
ocp_write_dword(tp, MCU_TYPE_USB, USB_BP_6, 0);
|
|
mdelay(3);
|
|
ocp_write_word(tp, MCU_TYPE_PLA, PLA_BP_BA, 0);
|
|
ocp_write_word(tp, MCU_TYPE_USB, USB_BP_BA, 0);
|
|
}
|
|
|
|
static void r8152b_enable_eee(struct r8152 *tp)
|
|
{
|
|
u32 ocp_data;
|
|
|
|
ocp_data = ocp_read_word(tp, MCU_TYPE_PLA, PLA_EEE_CR);
|
|
ocp_data |= EEE_RX_EN | EEE_TX_EN;
|
|
ocp_write_word(tp, MCU_TYPE_PLA, PLA_EEE_CR, ocp_data);
|
|
ocp_reg_write(tp, OCP_EEE_CONFIG1, RG_TXLPI_MSK_HFDUP | RG_MATCLR_EN |
|
|
EEE_10_CAP | EEE_NWAY_EN |
|
|
TX_QUIET_EN | RX_QUIET_EN |
|
|
SDRISETIME | RG_RXLPI_MSK_HFDUP |
|
|
SDFALLTIME);
|
|
ocp_reg_write(tp, OCP_EEE_CONFIG2, RG_LPIHYS_NUM | RG_DACQUIET_EN |
|
|
RG_LDVQUIET_EN | RG_CKRSEL |
|
|
RG_EEEPRG_EN);
|
|
ocp_reg_write(tp, OCP_EEE_CONFIG3, FST_SNR_EYE_R | RG_LFS_SEL | MSK_PH);
|
|
ocp_reg_write(tp, OCP_EEE_AR, FUN_ADDR | DEVICE_ADDR);
|
|
ocp_reg_write(tp, OCP_EEE_DATA, EEE_ADDR);
|
|
ocp_reg_write(tp, OCP_EEE_AR, FUN_DATA | DEVICE_ADDR);
|
|
ocp_reg_write(tp, OCP_EEE_DATA, EEE_DATA);
|
|
ocp_reg_write(tp, OCP_EEE_AR, 0x0000);
|
|
}
|
|
|
|
static void r8152b_enable_fc(struct r8152 *tp)
|
|
{
|
|
u16 anar;
|
|
|
|
anar = r8152_mdio_read(tp, MII_ADVERTISE);
|
|
anar |= ADVERTISE_PAUSE_CAP | ADVERTISE_PAUSE_ASYM;
|
|
r8152_mdio_write(tp, MII_ADVERTISE, anar);
|
|
}
|
|
|
|
static void r8152b_hw_phy_cfg(struct r8152 *tp)
|
|
{
|
|
r8152_mdio_write(tp, MII_BMCR, BMCR_ANENABLE);
|
|
r8152b_disable_aldps(tp);
|
|
}
|
|
|
|
static void r8152b_init(struct r8152 *tp)
|
|
{
|
|
u32 ocp_data;
|
|
int i;
|
|
|
|
rtl_clear_bp(tp);
|
|
|
|
if (tp->version == RTL_VER_01) {
|
|
ocp_data = ocp_read_word(tp, MCU_TYPE_PLA, PLA_LED_FEATURE);
|
|
ocp_data &= ~LED_MODE_MASK;
|
|
ocp_write_word(tp, MCU_TYPE_PLA, PLA_LED_FEATURE, ocp_data);
|
|
}
|
|
|
|
r8152b_hw_phy_cfg(tp);
|
|
|
|
ocp_data = ocp_read_word(tp, MCU_TYPE_USB, USB_UPS_CTRL);
|
|
ocp_data &= ~POWER_CUT;
|
|
ocp_write_word(tp, MCU_TYPE_USB, USB_UPS_CTRL, ocp_data);
|
|
|
|
ocp_data = ocp_read_word(tp, MCU_TYPE_USB, USB_PM_CTRL_STATUS);
|
|
ocp_data &= ~RWSUME_INDICATE;
|
|
ocp_write_word(tp, MCU_TYPE_USB, USB_PM_CTRL_STATUS, ocp_data);
|
|
|
|
r8152b_exit_oob(tp);
|
|
|
|
ocp_data = ocp_read_word(tp, MCU_TYPE_PLA, PLA_PHY_PWR);
|
|
ocp_data |= TX_10M_IDLE_EN | PFM_PWM_SWITCH;
|
|
ocp_write_word(tp, MCU_TYPE_PLA, PLA_PHY_PWR, ocp_data);
|
|
ocp_data = ocp_read_dword(tp, MCU_TYPE_PLA, PLA_MAC_PWR_CTRL);
|
|
ocp_data &= ~MCU_CLK_RATIO_MASK;
|
|
ocp_data |= MCU_CLK_RATIO | D3_CLK_GATED_EN;
|
|
ocp_write_dword(tp, MCU_TYPE_PLA, PLA_MAC_PWR_CTRL, ocp_data);
|
|
ocp_data = GPHY_STS_MSK | SPEED_DOWN_MSK |
|
|
SPDWN_RXDV_MSK | SPDWN_LINKCHG_MSK;
|
|
ocp_write_word(tp, MCU_TYPE_PLA, PLA_GPHY_INTR_IMR, ocp_data);
|
|
|
|
r8152b_enable_eee(tp);
|
|
r8152b_enable_aldps(tp);
|
|
r8152b_enable_fc(tp);
|
|
|
|
r8152_mdio_write(tp, MII_BMCR, BMCR_RESET | BMCR_ANENABLE |
|
|
BMCR_ANRESTART);
|
|
for (i = 0; i < 100; i++) {
|
|
udelay(100);
|
|
if (!(r8152_mdio_read(tp, MII_BMCR) & BMCR_RESET))
|
|
break;
|
|
}
|
|
|
|
/* enable rx aggregation */
|
|
ocp_data = ocp_read_word(tp, MCU_TYPE_USB, USB_USB_CTRL);
|
|
ocp_data &= ~RX_AGG_DISABLE;
|
|
ocp_write_word(tp, MCU_TYPE_USB, USB_USB_CTRL, ocp_data);
|
|
}
|
|
|
|
static int rtl8152_suspend(struct usb_interface *intf, pm_message_t message)
|
|
{
|
|
struct r8152 *tp = usb_get_intfdata(intf);
|
|
|
|
netif_device_detach(tp->netdev);
|
|
|
|
if (netif_running(tp->netdev)) {
|
|
clear_bit(WORK_ENABLE, &tp->flags);
|
|
usb_kill_urb(tp->intr_urb);
|
|
cancel_delayed_work_sync(&tp->schedule);
|
|
tasklet_disable(&tp->tl);
|
|
}
|
|
|
|
rtl8152_down(tp);
|
|
|
|
return 0;
|
|
}
|
|
|
|
static int rtl8152_resume(struct usb_interface *intf)
|
|
{
|
|
struct r8152 *tp = usb_get_intfdata(intf);
|
|
|
|
r8152b_init(tp);
|
|
netif_device_attach(tp->netdev);
|
|
if (netif_running(tp->netdev)) {
|
|
rtl8152_set_speed(tp, AUTONEG_ENABLE, SPEED_100, DUPLEX_FULL);
|
|
tp->speed = 0;
|
|
netif_carrier_off(tp->netdev);
|
|
set_bit(WORK_ENABLE, &tp->flags);
|
|
usb_submit_urb(tp->intr_urb, GFP_KERNEL);
|
|
tasklet_enable(&tp->tl);
|
|
}
|
|
|
|
return 0;
|
|
}
|
|
|
|
static void rtl8152_get_drvinfo(struct net_device *netdev,
|
|
struct ethtool_drvinfo *info)
|
|
{
|
|
struct r8152 *tp = netdev_priv(netdev);
|
|
|
|
strncpy(info->driver, MODULENAME, ETHTOOL_BUSINFO_LEN);
|
|
strncpy(info->version, DRIVER_VERSION, ETHTOOL_BUSINFO_LEN);
|
|
usb_make_path(tp->udev, info->bus_info, sizeof(info->bus_info));
|
|
}
|
|
|
|
static
|
|
int rtl8152_get_settings(struct net_device *netdev, struct ethtool_cmd *cmd)
|
|
{
|
|
struct r8152 *tp = netdev_priv(netdev);
|
|
|
|
if (!tp->mii.mdio_read)
|
|
return -EOPNOTSUPP;
|
|
|
|
return mii_ethtool_gset(&tp->mii, cmd);
|
|
}
|
|
|
|
static int rtl8152_set_settings(struct net_device *dev, struct ethtool_cmd *cmd)
|
|
{
|
|
struct r8152 *tp = netdev_priv(dev);
|
|
|
|
return rtl8152_set_speed(tp, cmd->autoneg, cmd->speed, cmd->duplex);
|
|
}
|
|
|
|
static struct ethtool_ops ops = {
|
|
.get_drvinfo = rtl8152_get_drvinfo,
|
|
.get_settings = rtl8152_get_settings,
|
|
.set_settings = rtl8152_set_settings,
|
|
.get_link = ethtool_op_get_link,
|
|
};
|
|
|
|
static int rtl8152_ioctl(struct net_device *netdev, struct ifreq *rq, int cmd)
|
|
{
|
|
struct r8152 *tp = netdev_priv(netdev);
|
|
struct mii_ioctl_data *data = if_mii(rq);
|
|
int res = 0;
|
|
|
|
switch (cmd) {
|
|
case SIOCGMIIPHY:
|
|
data->phy_id = R8152_PHY_ID; /* Internal PHY */
|
|
break;
|
|
|
|
case SIOCGMIIREG:
|
|
data->val_out = r8152_mdio_read(tp, data->reg_num);
|
|
break;
|
|
|
|
case SIOCSMIIREG:
|
|
if (!capable(CAP_NET_ADMIN)) {
|
|
res = -EPERM;
|
|
break;
|
|
}
|
|
r8152_mdio_write(tp, data->reg_num, data->val_in);
|
|
break;
|
|
|
|
default:
|
|
res = -EOPNOTSUPP;
|
|
}
|
|
|
|
return res;
|
|
}
|
|
|
|
static const struct net_device_ops rtl8152_netdev_ops = {
|
|
.ndo_open = rtl8152_open,
|
|
.ndo_stop = rtl8152_close,
|
|
.ndo_do_ioctl = rtl8152_ioctl,
|
|
.ndo_start_xmit = rtl8152_start_xmit,
|
|
.ndo_tx_timeout = rtl8152_tx_timeout,
|
|
.ndo_set_rx_mode = rtl8152_set_rx_mode,
|
|
.ndo_set_mac_address = rtl8152_set_mac_address,
|
|
|
|
.ndo_change_mtu = eth_change_mtu,
|
|
.ndo_validate_addr = eth_validate_addr,
|
|
};
|
|
|
|
static void r8152b_get_version(struct r8152 *tp)
|
|
{
|
|
u32 ocp_data;
|
|
u16 version;
|
|
|
|
ocp_data = ocp_read_word(tp, MCU_TYPE_PLA, PLA_TCR1);
|
|
version = (u16)(ocp_data & VERSION_MASK);
|
|
|
|
switch (version) {
|
|
case 0x4c00:
|
|
tp->version = RTL_VER_01;
|
|
break;
|
|
case 0x4c10:
|
|
tp->version = RTL_VER_02;
|
|
break;
|
|
default:
|
|
netif_info(tp, probe, tp->netdev,
|
|
"Unknown version 0x%04x\n", version);
|
|
break;
|
|
}
|
|
}
|
|
|
|
static int rtl8152_probe(struct usb_interface *intf,
|
|
const struct usb_device_id *id)
|
|
{
|
|
struct usb_device *udev = interface_to_usbdev(intf);
|
|
struct r8152 *tp;
|
|
struct net_device *netdev;
|
|
int ret;
|
|
|
|
if (udev->actconfig->desc.bConfigurationValue != 1) {
|
|
usb_driver_set_configuration(udev, 1);
|
|
return -ENODEV;
|
|
}
|
|
|
|
netdev = alloc_etherdev(sizeof(struct r8152));
|
|
if (!netdev) {
|
|
dev_err(&intf->dev, "Out of memory");
|
|
return -ENOMEM;
|
|
}
|
|
|
|
SET_NETDEV_DEV(netdev, &intf->dev);
|
|
tp = netdev_priv(netdev);
|
|
tp->msg_enable = 0x7FFF;
|
|
|
|
tasklet_init(&tp->tl, bottom_half, (unsigned long)tp);
|
|
INIT_DELAYED_WORK(&tp->schedule, rtl_work_func_t);
|
|
|
|
tp->udev = udev;
|
|
tp->netdev = netdev;
|
|
tp->intf = intf;
|
|
netdev->netdev_ops = &rtl8152_netdev_ops;
|
|
netdev->watchdog_timeo = RTL8152_TX_TIMEOUT;
|
|
|
|
netdev->features |= NETIF_F_IP_CSUM;
|
|
netdev->hw_features = NETIF_F_IP_CSUM;
|
|
SET_ETHTOOL_OPS(netdev, &ops);
|
|
|
|
tp->mii.dev = netdev;
|
|
tp->mii.mdio_read = read_mii_word;
|
|
tp->mii.mdio_write = write_mii_word;
|
|
tp->mii.phy_id_mask = 0x3f;
|
|
tp->mii.reg_num_mask = 0x1f;
|
|
tp->mii.phy_id = R8152_PHY_ID;
|
|
tp->mii.supports_gmii = 0;
|
|
|
|
r8152b_get_version(tp);
|
|
r8152b_init(tp);
|
|
set_ethernet_addr(tp);
|
|
|
|
ret = alloc_all_mem(tp);
|
|
if (ret)
|
|
goto out;
|
|
|
|
usb_set_intfdata(intf, tp);
|
|
|
|
ret = register_netdev(netdev);
|
|
if (ret != 0) {
|
|
netif_err(tp, probe, netdev, "couldn't register the device");
|
|
goto out1;
|
|
}
|
|
|
|
netif_info(tp, probe, netdev, "%s", DRIVER_VERSION);
|
|
|
|
return 0;
|
|
|
|
out1:
|
|
usb_set_intfdata(intf, NULL);
|
|
out:
|
|
free_netdev(netdev);
|
|
return ret;
|
|
}
|
|
|
|
static void rtl8152_unload(struct r8152 *tp)
|
|
{
|
|
u32 ocp_data;
|
|
|
|
if (tp->version != RTL_VER_01) {
|
|
ocp_data = ocp_read_word(tp, MCU_TYPE_USB, USB_UPS_CTRL);
|
|
ocp_data |= POWER_CUT;
|
|
ocp_write_word(tp, MCU_TYPE_USB, USB_UPS_CTRL, ocp_data);
|
|
}
|
|
|
|
ocp_data = ocp_read_word(tp, MCU_TYPE_USB, USB_PM_CTRL_STATUS);
|
|
ocp_data &= ~RWSUME_INDICATE;
|
|
ocp_write_word(tp, MCU_TYPE_USB, USB_PM_CTRL_STATUS, ocp_data);
|
|
}
|
|
|
|
static void rtl8152_disconnect(struct usb_interface *intf)
|
|
{
|
|
struct r8152 *tp = usb_get_intfdata(intf);
|
|
|
|
usb_set_intfdata(intf, NULL);
|
|
if (tp) {
|
|
set_bit(RTL8152_UNPLUG, &tp->flags);
|
|
tasklet_kill(&tp->tl);
|
|
unregister_netdev(tp->netdev);
|
|
rtl8152_unload(tp);
|
|
free_all_mem(tp);
|
|
free_netdev(tp->netdev);
|
|
}
|
|
}
|
|
|
|
/* table of devices that work with this driver */
|
|
static struct usb_device_id rtl8152_table[] = {
|
|
{USB_DEVICE(VENDOR_ID_REALTEK, PRODUCT_ID_RTL8152)},
|
|
{}
|
|
};
|
|
|
|
MODULE_DEVICE_TABLE(usb, rtl8152_table);
|
|
|
|
static struct usb_driver rtl8152_driver = {
|
|
.name = MODULENAME,
|
|
.id_table = rtl8152_table,
|
|
.probe = rtl8152_probe,
|
|
.disconnect = rtl8152_disconnect,
|
|
.suspend = rtl8152_suspend,
|
|
.resume = rtl8152_resume,
|
|
.reset_resume = rtl8152_resume,
|
|
};
|
|
|
|
module_usb_driver(rtl8152_driver);
|
|
|
|
MODULE_AUTHOR(DRIVER_AUTHOR);
|
|
MODULE_DESCRIPTION(DRIVER_DESC);
|
|
MODULE_LICENSE("GPL");
|