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hw/net/lan9118: Extract lan9118_phy
A very similar implementation of the same device exists in imx_fec. Prepare for a common implementation by extracting a device model into its own files. Some migration state has been moved into the new device model which breaks migration compatibility for the following machines: * smdkc210 * realview-* * vexpress-* * kzm * mps2-* While breaking migration ABI, fix the size of the MII registers to be 16 bit, as defined by IEEE 802.3u. Signed-off-by: Bernhard Beschow <shentey@gmail.com> Tested-by: Guenter Roeck <linux@roeck-us.net> Reviewed-by: Peter Maydell <peter.maydell@linaro.org> Message-id: 20241102125724.532843-2-shentey@gmail.com Signed-off-by: Peter Maydell <peter.maydell@linaro.org>
This commit is contained in:
Bernhard Beschow
Peter Maydell
parent
97f2796a37
commit
c0cf6b412e
5 changed files with 233 additions and 115 deletions
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@ -62,8 +62,12 @@ config VMXNET3_PCI
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config SMC91C111
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bool
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config LAN9118_PHY
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bool
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config LAN9118
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bool
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select LAN9118_PHY
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select PTIMER
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config NE2000_ISA
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137
hw/net/lan9118.c
137
hw/net/lan9118.c
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@ -16,6 +16,7 @@
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#include "net/net.h"
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#include "net/eth.h"
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#include "hw/irq.h"
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#include "hw/net/lan9118_phy.h"
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#include "hw/net/lan9118.h"
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#include "hw/ptimer.h"
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#include "hw/qdev-properties.h"
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@ -139,14 +140,6 @@ do { printf("lan9118: " fmt , ## __VA_ARGS__); } while (0)
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#define MAC_CR_RXEN 0x00000004
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#define MAC_CR_RESERVED 0x7f404213
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#define PHY_INT_ENERGYON 0x80
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#define PHY_INT_AUTONEG_COMPLETE 0x40
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#define PHY_INT_FAULT 0x20
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#define PHY_INT_DOWN 0x10
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#define PHY_INT_AUTONEG_LP 0x08
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#define PHY_INT_PARFAULT 0x04
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#define PHY_INT_AUTONEG_PAGE 0x02
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#define GPT_TIMER_EN 0x20000000
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/*
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@ -228,11 +221,8 @@ struct lan9118_state {
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uint32_t mac_mii_data;
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uint32_t mac_flow;
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uint32_t phy_status;
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uint32_t phy_control;
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uint32_t phy_advertise;
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uint32_t phy_int;
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uint32_t phy_int_mask;
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Lan9118PhyState mii;
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IRQState mii_irq;
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int32_t eeprom_writable;
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uint8_t eeprom[128];
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@ -274,8 +264,8 @@ struct lan9118_state {
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static const VMStateDescription vmstate_lan9118 = {
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.name = "lan9118",
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.version_id = 2,
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.minimum_version_id = 1,
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.version_id = 3,
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.minimum_version_id = 3,
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.fields = (const VMStateField[]) {
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VMSTATE_PTIMER(timer, lan9118_state),
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VMSTATE_UINT32(irq_cfg, lan9118_state),
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@ -301,11 +291,6 @@ static const VMStateDescription vmstate_lan9118 = {
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VMSTATE_UINT32(mac_mii_acc, lan9118_state),
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VMSTATE_UINT32(mac_mii_data, lan9118_state),
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VMSTATE_UINT32(mac_flow, lan9118_state),
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VMSTATE_UINT32(phy_status, lan9118_state),
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VMSTATE_UINT32(phy_control, lan9118_state),
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VMSTATE_UINT32(phy_advertise, lan9118_state),
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VMSTATE_UINT32(phy_int, lan9118_state),
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VMSTATE_UINT32(phy_int_mask, lan9118_state),
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VMSTATE_INT32(eeprom_writable, lan9118_state),
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VMSTATE_UINT8_ARRAY(eeprom, lan9118_state, 128),
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VMSTATE_INT32(tx_fifo_size, lan9118_state),
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@ -385,9 +370,11 @@ static void lan9118_reload_eeprom(lan9118_state *s)
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lan9118_mac_changed(s);
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}
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static void phy_update_irq(lan9118_state *s)
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static void lan9118_update_irq(void *opaque, int n, int level)
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{
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if (s->phy_int & s->phy_int_mask) {
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lan9118_state *s = opaque;
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if (level) {
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s->int_sts |= PHY_INT;
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} else {
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s->int_sts &= ~PHY_INT;
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@ -395,33 +382,10 @@ static void phy_update_irq(lan9118_state *s)
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lan9118_update(s);
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}
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static void phy_update_link(lan9118_state *s)
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{
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/* Autonegotiation status mirrors link status. */
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if (qemu_get_queue(s->nic)->link_down) {
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s->phy_status &= ~0x0024;
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s->phy_int |= PHY_INT_DOWN;
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} else {
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s->phy_status |= 0x0024;
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s->phy_int |= PHY_INT_ENERGYON;
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s->phy_int |= PHY_INT_AUTONEG_COMPLETE;
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}
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phy_update_irq(s);
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}
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static void lan9118_set_link(NetClientState *nc)
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{
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phy_update_link(qemu_get_nic_opaque(nc));
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}
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static void phy_reset(lan9118_state *s)
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{
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s->phy_status = 0x7809;
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s->phy_control = 0x3000;
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s->phy_advertise = 0x01e1;
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s->phy_int_mask = 0;
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s->phy_int = 0;
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phy_update_link(s);
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lan9118_phy_update_link(&LAN9118(qemu_get_nic_opaque(nc))->mii,
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nc->link_down);
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}
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static void lan9118_reset(DeviceState *d)
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@ -478,8 +442,6 @@ static void lan9118_reset(DeviceState *d)
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s->read_word_n = 0;
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s->write_word_n = 0;
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phy_reset(s);
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s->eeprom_writable = 0;
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lan9118_reload_eeprom(s);
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}
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@ -678,7 +640,7 @@ static void do_tx_packet(lan9118_state *s)
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uint32_t status;
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/* FIXME: Honor TX disable, and allow queueing of packets. */
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if (s->phy_control & 0x4000) {
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if (s->mii.control & 0x4000) {
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/* This assumes the receive routine doesn't touch the VLANClient. */
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qemu_receive_packet(qemu_get_queue(s->nic), s->txp->data, s->txp->len);
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} else {
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@ -834,68 +796,6 @@ static void tx_fifo_push(lan9118_state *s, uint32_t val)
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}
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}
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static uint32_t do_phy_read(lan9118_state *s, int reg)
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{
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uint32_t val;
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switch (reg) {
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case 0: /* Basic Control */
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return s->phy_control;
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case 1: /* Basic Status */
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return s->phy_status;
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case 2: /* ID1 */
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return 0x0007;
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case 3: /* ID2 */
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return 0xc0d1;
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case 4: /* Auto-neg advertisement */
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return s->phy_advertise;
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case 5: /* Auto-neg Link Partner Ability */
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return 0x0f71;
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case 6: /* Auto-neg Expansion */
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return 1;
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/* TODO 17, 18, 27, 29, 30, 31 */
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case 29: /* Interrupt source. */
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val = s->phy_int;
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s->phy_int = 0;
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phy_update_irq(s);
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return val;
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case 30: /* Interrupt mask */
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return s->phy_int_mask;
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default:
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qemu_log_mask(LOG_GUEST_ERROR,
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"do_phy_read: PHY read reg %d\n", reg);
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return 0;
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}
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}
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static void do_phy_write(lan9118_state *s, int reg, uint32_t val)
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{
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switch (reg) {
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case 0: /* Basic Control */
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if (val & 0x8000) {
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phy_reset(s);
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break;
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}
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s->phy_control = val & 0x7980;
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/* Complete autonegotiation immediately. */
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if (val & 0x1000) {
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s->phy_status |= 0x0020;
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}
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break;
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case 4: /* Auto-neg advertisement */
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s->phy_advertise = (val & 0x2d7f) | 0x80;
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break;
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/* TODO 17, 18, 27, 31 */
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case 30: /* Interrupt mask */
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s->phy_int_mask = val & 0xff;
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phy_update_irq(s);
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break;
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default:
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qemu_log_mask(LOG_GUEST_ERROR,
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"do_phy_write: PHY write reg %d = 0x%04x\n", reg, val);
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}
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}
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static void do_mac_write(lan9118_state *s, int reg, uint32_t val)
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{
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switch (reg) {
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@ -929,9 +829,9 @@ static void do_mac_write(lan9118_state *s, int reg, uint32_t val)
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if (val & 2) {
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DPRINTF("PHY write %d = 0x%04x\n",
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(val >> 6) & 0x1f, s->mac_mii_data);
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do_phy_write(s, (val >> 6) & 0x1f, s->mac_mii_data);
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lan9118_phy_write(&s->mii, (val >> 6) & 0x1f, s->mac_mii_data);
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} else {
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s->mac_mii_data = do_phy_read(s, (val >> 6) & 0x1f);
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s->mac_mii_data = lan9118_phy_read(&s->mii, (val >> 6) & 0x1f);
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DPRINTF("PHY read %d = 0x%04x\n",
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(val >> 6) & 0x1f, s->mac_mii_data);
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}
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@ -1126,7 +1026,7 @@ static void lan9118_writel(void *opaque, hwaddr offset,
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break;
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case CSR_PMT_CTRL:
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if (val & 0x400) {
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phy_reset(s);
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lan9118_phy_reset(&s->mii);
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}
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s->pmt_ctrl &= ~0x34e;
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s->pmt_ctrl |= (val & 0x34e);
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@ -1373,6 +1273,13 @@ static void lan9118_realize(DeviceState *dev, Error **errp)
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const MemoryRegionOps *mem_ops =
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s->mode_16bit ? &lan9118_16bit_mem_ops : &lan9118_mem_ops;
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qemu_init_irq(&s->mii_irq, lan9118_update_irq, s, 0);
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object_initialize_child(OBJECT(s), "mii", &s->mii, TYPE_LAN9118_PHY);
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if (!sysbus_realize_and_unref(SYS_BUS_DEVICE(&s->mii), errp)) {
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return;
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}
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qdev_connect_gpio_out(DEVICE(&s->mii), 0, &s->mii_irq);
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memory_region_init_io(&s->mmio, OBJECT(dev), mem_ops, s,
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"lan9118-mmio", 0x100);
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sysbus_init_mmio(sbd, &s->mmio);
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169
hw/net/lan9118_phy.c
Normal file
169
hw/net/lan9118_phy.c
Normal file
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@ -0,0 +1,169 @@
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/*
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* SMSC LAN9118 PHY emulation
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*
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* Copyright (c) 2009 CodeSourcery, LLC.
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* Written by Paul Brook
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*
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* This code is licensed under the GNU GPL v2
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*
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* Contributions after 2012-01-13 are licensed under the terms of the
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* GNU GPL, version 2 or (at your option) any later version.
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*/
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#include "qemu/osdep.h"
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#include "hw/net/lan9118_phy.h"
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#include "hw/irq.h"
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#include "hw/resettable.h"
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#include "migration/vmstate.h"
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#include "qemu/log.h"
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#define PHY_INT_ENERGYON (1 << 7)
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#define PHY_INT_AUTONEG_COMPLETE (1 << 6)
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#define PHY_INT_FAULT (1 << 5)
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#define PHY_INT_DOWN (1 << 4)
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#define PHY_INT_AUTONEG_LP (1 << 3)
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#define PHY_INT_PARFAULT (1 << 2)
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#define PHY_INT_AUTONEG_PAGE (1 << 1)
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static void lan9118_phy_update_irq(Lan9118PhyState *s)
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{
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qemu_set_irq(s->irq, !!(s->ints & s->int_mask));
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}
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uint16_t lan9118_phy_read(Lan9118PhyState *s, int reg)
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{
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uint16_t val;
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switch (reg) {
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case 0: /* Basic Control */
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return s->control;
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case 1: /* Basic Status */
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return s->status;
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case 2: /* ID1 */
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return 0x0007;
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case 3: /* ID2 */
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return 0xc0d1;
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case 4: /* Auto-neg advertisement */
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return s->advertise;
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case 5: /* Auto-neg Link Partner Ability */
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return 0x0f71;
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case 6: /* Auto-neg Expansion */
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return 1;
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/* TODO 17, 18, 27, 29, 30, 31 */
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case 29: /* Interrupt source. */
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val = s->ints;
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s->ints = 0;
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lan9118_phy_update_irq(s);
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return val;
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case 30: /* Interrupt mask */
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return s->int_mask;
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default:
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qemu_log_mask(LOG_GUEST_ERROR,
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"lan9118_phy_read: PHY read reg %d\n", reg);
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return 0;
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}
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}
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void lan9118_phy_write(Lan9118PhyState *s, int reg, uint16_t val)
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{
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switch (reg) {
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case 0: /* Basic Control */
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if (val & 0x8000) {
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lan9118_phy_reset(s);
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break;
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}
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s->control = val & 0x7980;
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/* Complete autonegotiation immediately. */
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if (val & 0x1000) {
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s->status |= 0x0020;
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}
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break;
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case 4: /* Auto-neg advertisement */
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s->advertise = (val & 0x2d7f) | 0x80;
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break;
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/* TODO 17, 18, 27, 31 */
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case 30: /* Interrupt mask */
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s->int_mask = val & 0xff;
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lan9118_phy_update_irq(s);
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break;
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default:
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qemu_log_mask(LOG_GUEST_ERROR,
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"lan9118_phy_write: PHY write reg %d = 0x%04x\n", reg, val);
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}
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}
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void lan9118_phy_update_link(Lan9118PhyState *s, bool link_down)
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{
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s->link_down = link_down;
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/* Autonegotiation status mirrors link status. */
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if (link_down) {
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s->status &= ~0x0024;
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s->ints |= PHY_INT_DOWN;
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} else {
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s->status |= 0x0024;
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s->ints |= PHY_INT_ENERGYON;
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s->ints |= PHY_INT_AUTONEG_COMPLETE;
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}
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lan9118_phy_update_irq(s);
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}
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void lan9118_phy_reset(Lan9118PhyState *s)
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{
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s->control = 0x3000;
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s->status = 0x7809;
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s->advertise = 0x01e1;
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s->int_mask = 0;
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s->ints = 0;
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lan9118_phy_update_link(s, s->link_down);
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}
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static void lan9118_phy_reset_hold(Object *obj, ResetType type)
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{
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Lan9118PhyState *s = LAN9118_PHY(obj);
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lan9118_phy_reset(s);
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}
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static void lan9118_phy_init(Object *obj)
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{
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Lan9118PhyState *s = LAN9118_PHY(obj);
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qdev_init_gpio_out(DEVICE(s), &s->irq, 1);
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}
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static const VMStateDescription vmstate_lan9118_phy = {
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.name = "lan9118-phy",
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.version_id = 1,
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.minimum_version_id = 1,
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.fields = (const VMStateField[]) {
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VMSTATE_UINT16(control, Lan9118PhyState),
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VMSTATE_UINT16(status, Lan9118PhyState),
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VMSTATE_UINT16(advertise, Lan9118PhyState),
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VMSTATE_UINT16(ints, Lan9118PhyState),
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VMSTATE_UINT16(int_mask, Lan9118PhyState),
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VMSTATE_BOOL(link_down, Lan9118PhyState),
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VMSTATE_END_OF_LIST()
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}
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};
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static void lan9118_phy_class_init(ObjectClass *klass, void *data)
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{
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ResettableClass *rc = RESETTABLE_CLASS(klass);
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DeviceClass *dc = DEVICE_CLASS(klass);
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rc->phases.hold = lan9118_phy_reset_hold;
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dc->vmsd = &vmstate_lan9118_phy;
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}
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static const TypeInfo types[] = {
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{
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.name = TYPE_LAN9118_PHY,
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.parent = TYPE_SYS_BUS_DEVICE,
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.instance_size = sizeof(Lan9118PhyState),
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.instance_init = lan9118_phy_init,
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.class_init = lan9118_phy_class_init,
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}
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};
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DEFINE_TYPES(types)
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@ -19,6 +19,7 @@ system_ss.add(when: 'CONFIG_VMXNET3_PCI', if_true: files('vmxnet3.c'))
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system_ss.add(when: 'CONFIG_SMC91C111', if_true: files('smc91c111.c'))
|
||||
system_ss.add(when: 'CONFIG_LAN9118', if_true: files('lan9118.c'))
|
||||
system_ss.add(when: 'CONFIG_LAN9118_PHY', if_true: files('lan9118_phy.c'))
|
||||
system_ss.add(when: 'CONFIG_NE2000_ISA', if_true: files('ne2000-isa.c'))
|
||||
system_ss.add(when: 'CONFIG_OPENCORES_ETH', if_true: files('opencores_eth.c'))
|
||||
system_ss.add(when: 'CONFIG_XGMAC', if_true: files('xgmac.c'))
|
||||
|
|
|
|||
37
include/hw/net/lan9118_phy.h
Normal file
37
include/hw/net/lan9118_phy.h
Normal file
|
|
@ -0,0 +1,37 @@
|
|||
/*
|
||||
* SMSC LAN9118 PHY emulation
|
||||
*
|
||||
* Copyright (c) 2009 CodeSourcery, LLC.
|
||||
* Written by Paul Brook
|
||||
*
|
||||
* This work is licensed under the terms of the GNU GPL, version 2 or later.
|
||||
* See the COPYING file in the top-level directory.
|
||||
*/
|
||||
|
||||
#ifndef HW_NET_LAN9118_PHY_H
|
||||
#define HW_NET_LAN9118_PHY_H
|
||||
|
||||
#include "qom/object.h"
|
||||
#include "hw/sysbus.h"
|
||||
|
||||
#define TYPE_LAN9118_PHY "lan9118-phy"
|
||||
OBJECT_DECLARE_SIMPLE_TYPE(Lan9118PhyState, LAN9118_PHY)
|
||||
|
||||
typedef struct Lan9118PhyState {
|
||||
SysBusDevice parent_obj;
|
||||
|
||||
uint16_t status;
|
||||
uint16_t control;
|
||||
uint16_t advertise;
|
||||
uint16_t ints;
|
||||
uint16_t int_mask;
|
||||
qemu_irq irq;
|
||||
bool link_down;
|
||||
} Lan9118PhyState;
|
||||
|
||||
void lan9118_phy_update_link(Lan9118PhyState *s, bool link_down);
|
||||
void lan9118_phy_reset(Lan9118PhyState *s);
|
||||
uint16_t lan9118_phy_read(Lan9118PhyState *s, int reg);
|
||||
void lan9118_phy_write(Lan9118PhyState *s, int reg, uint16_t val);
|
||||
|
||||
#endif
|
||||
Loading…
Add table
Add a link
Reference in a new issue