--- /dev/null
+/*
+ * QEMU Freescale eTSEC Emulator
+ *
+ * Copyright (c) 2011-2013 AdaCore
+ *
+ * Permission is hereby granted, free of charge, to any person obtaining a copy
+ * of this software and associated documentation files (the "Software"), to deal
+ * in the Software without restriction, including without limitation the rights
+ * to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
+ * copies of the Software, and to permit persons to whom the Software is
+ * furnished to do so, subject to the following conditions:
+ *
+ * The above copyright notice and this permission notice shall be included in
+ * all copies or substantial portions of the Software.
+ *
+ * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
+ * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
+ * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL
+ * THE AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
+ * LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
+ * OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN
+ * THE SOFTWARE.
+ */
+#ifndef _ETSEC_H_
+#define _ETSEC_H_
+
+#include "hw/qdev.h"
+#include "hw/sysbus.h"
+#include "net/net.h"
+#include "hw/ptimer.h"
+
+/* Buffer Descriptors */
+
+typedef struct eTSEC_rxtx_bd {
+ uint16_t flags;
+ uint16_t length;
+ uint32_t bufptr;
+} eTSEC_rxtx_bd;
+
+#define BD_WRAP (1 << 13)
+#define BD_INTERRUPT (1 << 12)
+#define BD_LAST (1 << 11)
+
+#define BD_TX_READY (1 << 15)
+#define BD_TX_PADCRC (1 << 14)
+#define BD_TX_TC (1 << 10)
+#define BD_TX_PREDEF (1 << 9)
+#define BD_TX_HFELC (1 << 7)
+#define BD_TX_CFRL (1 << 6)
+#define BD_TX_RC_MASK 0xF
+#define BD_TX_RC_OFFSET 0x2
+#define BD_TX_TOEUN (1 << 1)
+#define BD_TX_TR (1 << 0)
+
+#define BD_RX_EMPTY (1 << 15)
+#define BD_RX_RO1 (1 << 14)
+#define BD_RX_FIRST (1 << 10)
+#define BD_RX_MISS (1 << 8)
+#define BD_RX_BROADCAST (1 << 7)
+#define BD_RX_MULTICAST (1 << 6)
+#define BD_RX_LG (1 << 5)
+#define BD_RX_NO (1 << 4)
+#define BD_RX_SH (1 << 3)
+#define BD_RX_CR (1 << 2)
+#define BD_RX_OV (1 << 1)
+#define BD_RX_TR (1 << 0)
+
+/* Tx FCB flags */
+#define FCB_TX_VLN (1 << 7)
+#define FCB_TX_IP (1 << 6)
+#define FCB_TX_IP6 (1 << 5)
+#define FCB_TX_TUP (1 << 4)
+#define FCB_TX_UDP (1 << 3)
+#define FCB_TX_CIP (1 << 2)
+#define FCB_TX_CTU (1 << 1)
+#define FCB_TX_NPH (1 << 0)
+
+/* PHY Status Register */
+#define MII_SR_EXTENDED_CAPS 0x0001 /* Extended register capabilities */
+#define MII_SR_JABBER_DETECT 0x0002 /* Jabber Detected */
+#define MII_SR_LINK_STATUS 0x0004 /* Link Status 1 = link */
+#define MII_SR_AUTONEG_CAPS 0x0008 /* Auto Neg Capable */
+#define MII_SR_REMOTE_FAULT 0x0010 /* Remote Fault Detect */
+#define MII_SR_AUTONEG_COMPLETE 0x0020 /* Auto Neg Complete */
+#define MII_SR_PREAMBLE_SUPPRESS 0x0040 /* Preamble may be suppressed */
+#define MII_SR_EXTENDED_STATUS 0x0100 /* Ext. status info in Reg 0x0F */
+#define MII_SR_100T2_HD_CAPS 0x0200 /* 100T2 Half Duplex Capable */
+#define MII_SR_100T2_FD_CAPS 0x0400 /* 100T2 Full Duplex Capable */
+#define MII_SR_10T_HD_CAPS 0x0800 /* 10T Half Duplex Capable */
+#define MII_SR_10T_FD_CAPS 0x1000 /* 10T Full Duplex Capable */
+#define MII_SR_100X_HD_CAPS 0x2000 /* 100X Half Duplex Capable */
+#define MII_SR_100X_FD_CAPS 0x4000 /* 100X Full Duplex Capable */
+#define MII_SR_100T4_CAPS 0x8000 /* 100T4 Capable */
+
+/* eTSEC */
+
+/* Number of register in the device */
+#define ETSEC_REG_NUMBER 1024
+
+typedef struct eTSEC_Register {
+ const char *name;
+ const char *desc;
+ uint32_t access;
+ uint32_t value;
+} eTSEC_Register;
+
+typedef struct eTSEC {
+ SysBusDevice busdev;
+
+ MemoryRegion io_area;
+
+ eTSEC_Register regs[ETSEC_REG_NUMBER];
+
+ NICState *nic;
+ NICConf conf;
+
+ /* Tx */
+
+ uint8_t *tx_buffer;
+ uint32_t tx_buffer_len;
+ eTSEC_rxtx_bd first_bd;
+
+ /* Rx */
+
+ uint8_t *rx_buffer;
+ uint32_t rx_buffer_len;
+ uint32_t rx_remaining_data;
+ uint8_t rx_first_in_frame;
+ uint8_t rx_fcb_size;
+ eTSEC_rxtx_bd rx_first_bd;
+ uint8_t rx_fcb[10];
+ uint32_t rx_padding;
+
+ /* IRQs */
+ qemu_irq tx_irq;
+ qemu_irq rx_irq;
+ qemu_irq err_irq;
+
+
+ uint16_t phy_status;
+ uint16_t phy_control;
+
+ /* Polling */
+ QEMUBH *bh;
+ struct ptimer_state *ptimer;
+
+ /* Whether we should flush the rx queue when buffer becomes available. */
+ bool need_flush;
+} eTSEC;
+
+#define TYPE_ETSEC_COMMON "eTSEC"
+#define ETSEC_COMMON(obj) \
+ OBJECT_CHECK(eTSEC, (obj), TYPE_ETSEC_COMMON)
+
+#define eTSEC_TRANSMIT 1
+#define eTSEC_RECEIVE 2
+
+DeviceState *etsec_create(hwaddr base,
+ MemoryRegion *mr,
+ NICInfo *nd,
+ qemu_irq tx_irq,
+ qemu_irq rx_irq,
+ qemu_irq err_irq);
+
+void etsec_walk_tx_ring(eTSEC *etsec, int ring_nbr);
+void etsec_walk_rx_ring(eTSEC *etsec, int ring_nbr);
+ssize_t etsec_rx_ring_write(eTSEC *etsec, const uint8_t *buf, size_t size);
+
+void etsec_write_miim(eTSEC *etsec,
+ eTSEC_Register *reg,
+ uint32_t reg_index,
+ uint32_t value);
+
+void etsec_miim_link_status(eTSEC *etsec, NetClientState *nc);
+
+#endif /* ! _ETSEC_H_ */
Code Review / kvmfornfv.git / blobdiff