/* * Emulation of Allwinner EMAC Fast Ethernet controller and * Realtek RTL8201CP PHY * * Copyright (C) 2014 Beniamino Galvani * * Allwinner EMAC register definitions from Linux kernel are: * Copyright 2012 Stefan Roese * Copyright 2013 Maxime Ripard * Copyright 1997 Sten Wang * * This program is free software; you can redistribute it and/or * modify it under the terms of the GNU General Public License * version 2 as published by the Free Software Foundation. * * This program is distributed in the hope that it will be useful, * but WITHOUT ANY WARRANTY; without even the implied warranty of * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the * GNU General Public License for more details. * */ #ifndef ALLWINNER_EMAC_H #define ALLWINNER_EMAC_H #include "qemu/units.h" #include "net/net.h" #include "qemu/fifo8.h" #include "hw/net/mii.h" #include "hw/sysbus.h" #define TYPE_AW_EMAC "allwinner-emac" #define AW_EMAC(obj) OBJECT_CHECK(AwEmacState, (obj), TYPE_AW_EMAC) /* * Allwinner EMAC register list */ #define EMAC_CTL_REG 0x00 #define EMAC_TX_MODE_REG 0x04 #define EMAC_TX_FLOW_REG 0x08 #define EMAC_TX_CTL0_REG 0x0C #define EMAC_TX_CTL1_REG 0x10 #define EMAC_TX_INS_REG 0x14 #define EMAC_TX_PL0_REG 0x18 #define EMAC_TX_PL1_REG 0x1C #define EMAC_TX_STA_REG 0x20 #define EMAC_TX_IO_DATA_REG 0x24 #define EMAC_TX_IO_DATA1_REG 0x28 #define EMAC_TX_TSVL0_REG 0x2C #define EMAC_TX_TSVH0_REG 0x30 #define EMAC_TX_TSVL1_REG 0x34 #define EMAC_TX_TSVH1_REG 0x38 #define EMAC_RX_CTL_REG 0x3C #define EMAC_RX_HASH0_REG 0x40 #define EMAC_RX_HASH1_REG 0x44 #define EMAC_RX_STA_REG 0x48 #define EMAC_RX_IO_DATA_REG 0x4C #define EMAC_RX_FBC_REG 0x50 #define EMAC_INT_CTL_REG 0x54 #define EMAC_INT_STA_REG 0x58 #define EMAC_MAC_CTL0_REG 0x5C #define EMAC_MAC_CTL1_REG 0x60 #define EMAC_MAC_IPGT_REG 0x64 #define EMAC_MAC_IPGR_REG 0x68 #define EMAC_MAC_CLRT_REG 0x6C #define EMAC_MAC_MAXF_REG 0x70 #define EMAC_MAC_SUPP_REG 0x74 #define EMAC_MAC_TEST_REG 0x78 #define EMAC_MAC_MCFG_REG 0x7C #define EMAC_MAC_MCMD_REG 0x80 #define EMAC_MAC_MADR_REG 0x84 #define EMAC_MAC_MWTD_REG 0x88 #define EMAC_MAC_MRDD_REG 0x8C #define EMAC_MAC_MIND_REG 0x90 #define EMAC_MAC_SSRR_REG 0x94 #define EMAC_MAC_A0_REG 0x98 #define EMAC_MAC_A1_REG 0x9C #define EMAC_MAC_A2_REG 0xA0 #define EMAC_SAFX_L_REG0 0xA4 #define EMAC_SAFX_H_REG0 0xA8 #define EMAC_SAFX_L_REG1 0xAC #define EMAC_SAFX_H_REG1 0xB0 #define EMAC_SAFX_L_REG2 0xB4 #define EMAC_SAFX_H_REG2 0xB8 #define EMAC_SAFX_L_REG3 0xBC #define EMAC_SAFX_H_REG3 0xC0 /* CTL register fields */ #define EMAC_CTL_RESET (1 << 0) #define EMAC_CTL_TX_EN (1 << 1) #define EMAC_CTL_RX_EN (1 << 2) /* TX MODE register fields */ #define EMAC_TX_MODE_ABORTED_FRAME_EN (1 << 0) #define EMAC_TX_MODE_DMA_EN (1 << 1) /* RX CTL register fields */ #define EMAC_RX_CTL_AUTO_DRQ_EN (1 << 1) #define EMAC_RX_CTL_DMA_EN (1 << 2) #define EMAC_RX_CTL_PASS_ALL_EN (1 << 4) #define EMAC_RX_CTL_PASS_CTL_EN (1 << 5) #define EMAC_RX_CTL_PASS_CRC_ERR_EN (1 << 6) #define EMAC_RX_CTL_PASS_LEN_ERR_EN (1 << 7) #define EMAC_RX_CTL_PASS_LEN_OOR_EN (1 << 8) #define EMAC_RX_CTL_ACCEPT_UNICAST_EN (1 << 16) #define EMAC_RX_CTL_DA_FILTER_EN (1 << 17) #define EMAC_RX_CTL_ACCEPT_MULTICAST_EN (1 << 20) #define EMAC_RX_CTL_HASH_FILTER_EN (1 << 21) #define EMAC_RX_CTL_ACCEPT_BROADCAST_EN (1 << 22) #define EMAC_RX_CTL_SA_FILTER_EN (1 << 24) #define EMAC_RX_CTL_SA_FILTER_INVERT_EN (1 << 25) /* RX IO DATA register fields */ #define EMAC_RX_HEADER(len, status) (((len) & 0xffff) | ((status) << 16)) #define EMAC_RX_IO_DATA_STATUS_CRC_ERR (1 << 4) #define EMAC_RX_IO_DATA_STATUS_LEN_ERR (3 << 5) #define EMAC_RX_IO_DATA_STATUS_OK (1 << 7) #define EMAC_UNDOCUMENTED_MAGIC 0x0143414d /* header for RX frames */ /* INT CTL and INT STA registers fields */ #define EMAC_INT_TX_CHAN(x) (1 << (x)) #define EMAC_INT_RX (1 << 8) /* Due to lack of specifications, size of fifos is chosen arbitrarily */ #define TX_FIFO_SIZE (4 * KiB) #define RX_FIFO_SIZE (32 * KiB) #define NUM_TX_FIFOS 2 #define RX_HDR_SIZE 8 #define CRC_SIZE 4 #define PHY_REG_SHIFT 0 #define PHY_ADDR_SHIFT 8 typedef struct RTL8201CPState { uint16_t bmcr; uint16_t bmsr; uint16_t anar; uint16_t anlpar; } RTL8201CPState; typedef struct AwEmacState { /*< private >*/ SysBusDevice parent_obj; /*< public >*/ MemoryRegion iomem; qemu_irq irq; NICState *nic; NICConf conf; RTL8201CPState mii; uint8_t phy_addr; uint32_t ctl; uint32_t tx_mode; uint32_t rx_ctl; uint32_t int_ctl; uint32_t int_sta; uint32_t phy_target; Fifo8 rx_fifo; uint32_t rx_num_packets; uint32_t rx_packet_size; uint32_t rx_packet_pos; Fifo8 tx_fifo[NUM_TX_FIFOS]; uint32_t tx_length[NUM_TX_FIFOS]; uint32_t tx_channel; } AwEmacState; #endif