1 /* 2 * Allwinner Sun8i Ethernet MAC emulation 3 * 4 * Copyright (C) 2019 Niek Linnenbank <nieklinnenbank@gmail.com> 5 * 6 * This program is free software: you can redistribute it and/or modify 7 * it under the terms of the GNU General Public License as published by 8 * the Free Software Foundation, either version 2 of the License, or 9 * (at your option) any later version. 10 * 11 * This program is distributed in the hope that it will be useful, 12 * but WITHOUT ANY WARRANTY; without even the implied warranty of 13 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the 14 * GNU General Public License for more details. 15 * 16 * You should have received a copy of the GNU General Public License 17 * along with this program. If not, see <http://www.gnu.org/licenses/>. 18 */ 19 20 #ifndef HW_NET_ALLWINNER_SUN8I_EMAC_H 21 #define HW_NET_ALLWINNER_SUN8I_EMAC_H 22 23 #include "qom/object.h" 24 #include "net/net.h" 25 #include "hw/sysbus.h" 26 27 /** 28 * Object model 29 * @{ 30 */ 31 32 #define TYPE_AW_SUN8I_EMAC "allwinner-sun8i-emac" 33 OBJECT_DECLARE_SIMPLE_TYPE(AwSun8iEmacState, AW_SUN8I_EMAC) 34 35 /** @} */ 36 37 /** 38 * Allwinner Sun8i EMAC object instance state 39 */ 40 struct AwSun8iEmacState { 41 /*< private >*/ 42 SysBusDevice parent_obj; 43 /*< public >*/ 44 45 /** Maps I/O registers in physical memory */ 46 MemoryRegion iomem; 47 48 /** Interrupt output signal to notify CPU */ 49 qemu_irq irq; 50 51 /** Memory region where DMA transfers are done */ 52 MemoryRegion *dma_mr; 53 54 /** Address space used internally for DMA transfers */ 55 AddressSpace dma_as; 56 57 /** Generic Network Interface Controller (NIC) for networking API */ 58 NICState *nic; 59 60 /** Generic Network Interface Controller (NIC) configuration */ 61 NICConf conf; 62 63 /** 64 * @name Media Independent Interface (MII) 65 * @{ 66 */ 67 68 uint8_t mii_phy_addr; /**< PHY address */ 69 uint32_t mii_cr; /**< Control */ 70 uint32_t mii_st; /**< Status */ 71 uint32_t mii_adv; /**< Advertised Abilities */ 72 73 /** @} */ 74 75 /** 76 * @name Hardware Registers 77 * @{ 78 */ 79 80 uint32_t basic_ctl0; /**< Basic Control 0 */ 81 uint32_t basic_ctl1; /**< Basic Control 1 */ 82 uint32_t int_en; /**< Interrupt Enable */ 83 uint32_t int_sta; /**< Interrupt Status */ 84 uint32_t frm_flt; /**< Receive Frame Filter */ 85 86 uint32_t rx_ctl0; /**< Receive Control 0 */ 87 uint32_t rx_ctl1; /**< Receive Control 1 */ 88 uint32_t rx_desc_head; /**< Receive Descriptor List Address */ 89 uint32_t rx_desc_curr; /**< Current Receive Descriptor Address */ 90 91 uint32_t tx_ctl0; /**< Transmit Control 0 */ 92 uint32_t tx_ctl1; /**< Transmit Control 1 */ 93 uint32_t tx_desc_head; /**< Transmit Descriptor List Address */ 94 uint32_t tx_desc_curr; /**< Current Transmit Descriptor Address */ 95 uint32_t tx_flowctl; /**< Transmit Flow Control */ 96 97 uint32_t mii_cmd; /**< Management Interface Command */ 98 uint32_t mii_data; /**< Management Interface Data */ 99 100 /** @} */ 101 102 }; 103 104 #endif /* HW_NET_ALLWINNER_SUN8I_EMAC_H */ 105