diff options
author | Paolo Bonzini <pbonzini@redhat.com> | 2013-03-01 13:59:19 +0100 |
---|---|---|
committer | Paolo Bonzini <pbonzini@redhat.com> | 2013-04-08 18:13:12 +0200 |
commit | 49ab747f668f421138d5b40d83fa279c4c5e278d (patch) | |
tree | 943225a04eac885aed038731adf058f2250a2f40 /hw/smc91c111.c | |
parent | ce3b494cb504f96992f2d37ebc8f56deed202b06 (diff) |
hw: move target-independent files to subdirectories
This patch tackles all files that are compiled once, moving
them to subdirectories of hw/.
Signed-off-by: Paolo Bonzini <pbonzini@redhat.com>
Diffstat (limited to 'hw/smc91c111.c')
-rw-r--r-- | hw/smc91c111.c | 806 |
1 files changed, 0 insertions, 806 deletions
diff --git a/hw/smc91c111.c b/hw/smc91c111.c deleted file mode 100644 index f659256d6e..0000000000 --- a/hw/smc91c111.c +++ /dev/null @@ -1,806 +0,0 @@ -/* - * SMSC 91C111 Ethernet interface emulation - * - * Copyright (c) 2005 CodeSourcery, LLC. - * Written by Paul Brook - * - * This code is licensed under the GPL - */ - -#include "hw/sysbus.h" -#include "net/net.h" -#include "hw/arm/devices.h" -/* For crc32 */ -#include <zlib.h> - -/* Number of 2k memory pages available. */ -#define NUM_PACKETS 4 - -typedef struct { - SysBusDevice busdev; - NICState *nic; - NICConf conf; - uint16_t tcr; - uint16_t rcr; - uint16_t cr; - uint16_t ctr; - uint16_t gpr; - uint16_t ptr; - uint16_t ercv; - qemu_irq irq; - int bank; - int packet_num; - int tx_alloc; - /* Bitmask of allocated packets. */ - int allocated; - int tx_fifo_len; - int tx_fifo[NUM_PACKETS]; - int rx_fifo_len; - int rx_fifo[NUM_PACKETS]; - int tx_fifo_done_len; - int tx_fifo_done[NUM_PACKETS]; - /* Packet buffer memory. */ - uint8_t data[NUM_PACKETS][2048]; - uint8_t int_level; - uint8_t int_mask; - MemoryRegion mmio; -} smc91c111_state; - -static const VMStateDescription vmstate_smc91c111 = { - .name = "smc91c111", - .version_id = 1, - .minimum_version_id = 1, - .fields = (VMStateField []) { - VMSTATE_UINT16(tcr, smc91c111_state), - VMSTATE_UINT16(rcr, smc91c111_state), - VMSTATE_UINT16(cr, smc91c111_state), - VMSTATE_UINT16(ctr, smc91c111_state), - VMSTATE_UINT16(gpr, smc91c111_state), - VMSTATE_UINT16(ptr, smc91c111_state), - VMSTATE_UINT16(ercv, smc91c111_state), - VMSTATE_INT32(bank, smc91c111_state), - VMSTATE_INT32(packet_num, smc91c111_state), - VMSTATE_INT32(tx_alloc, smc91c111_state), - VMSTATE_INT32(allocated, smc91c111_state), - VMSTATE_INT32(tx_fifo_len, smc91c111_state), - VMSTATE_INT32_ARRAY(tx_fifo, smc91c111_state, NUM_PACKETS), - VMSTATE_INT32(rx_fifo_len, smc91c111_state), - VMSTATE_INT32_ARRAY(rx_fifo, smc91c111_state, NUM_PACKETS), - VMSTATE_INT32(tx_fifo_done_len, smc91c111_state), - VMSTATE_INT32_ARRAY(tx_fifo_done, smc91c111_state, NUM_PACKETS), - VMSTATE_BUFFER_UNSAFE(data, smc91c111_state, 0, NUM_PACKETS * 2048), - VMSTATE_UINT8(int_level, smc91c111_state), - VMSTATE_UINT8(int_mask, smc91c111_state), - VMSTATE_END_OF_LIST() - } -}; - -#define RCR_SOFT_RST 0x8000 -#define RCR_STRIP_CRC 0x0200 -#define RCR_RXEN 0x0100 - -#define TCR_EPH_LOOP 0x2000 -#define TCR_NOCRC 0x0100 -#define TCR_PAD_EN 0x0080 -#define TCR_FORCOL 0x0004 -#define TCR_LOOP 0x0002 -#define TCR_TXEN 0x0001 - -#define INT_MD 0x80 -#define INT_ERCV 0x40 -#define INT_EPH 0x20 -#define INT_RX_OVRN 0x10 -#define INT_ALLOC 0x08 -#define INT_TX_EMPTY 0x04 -#define INT_TX 0x02 -#define INT_RCV 0x01 - -#define CTR_AUTO_RELEASE 0x0800 -#define CTR_RELOAD 0x0002 -#define CTR_STORE 0x0001 - -#define RS_ALGNERR 0x8000 -#define RS_BRODCAST 0x4000 -#define RS_BADCRC 0x2000 -#define RS_ODDFRAME 0x1000 -#define RS_TOOLONG 0x0800 -#define RS_TOOSHORT 0x0400 -#define RS_MULTICAST 0x0001 - -/* Update interrupt status. */ -static void smc91c111_update(smc91c111_state *s) -{ - int level; - - if (s->tx_fifo_len == 0) - s->int_level |= INT_TX_EMPTY; - if (s->tx_fifo_done_len != 0) - s->int_level |= INT_TX; - level = (s->int_level & s->int_mask) != 0; - qemu_set_irq(s->irq, level); -} - -/* Try to allocate a packet. Returns 0x80 on failure. */ -static int smc91c111_allocate_packet(smc91c111_state *s) -{ - int i; - if (s->allocated == (1 << NUM_PACKETS) - 1) { - return 0x80; - } - - for (i = 0; i < NUM_PACKETS; i++) { - if ((s->allocated & (1 << i)) == 0) - break; - } - s->allocated |= 1 << i; - return i; -} - - -/* Process a pending TX allocate. */ -static void smc91c111_tx_alloc(smc91c111_state *s) -{ - s->tx_alloc = smc91c111_allocate_packet(s); - if (s->tx_alloc == 0x80) - return; - s->int_level |= INT_ALLOC; - smc91c111_update(s); -} - -/* Remove and item from the RX FIFO. */ -static void smc91c111_pop_rx_fifo(smc91c111_state *s) -{ - int i; - - s->rx_fifo_len--; - if (s->rx_fifo_len) { - for (i = 0; i < s->rx_fifo_len; i++) - s->rx_fifo[i] = s->rx_fifo[i + 1]; - s->int_level |= INT_RCV; - } else { - s->int_level &= ~INT_RCV; - } - smc91c111_update(s); -} - -/* Remove an item from the TX completion FIFO. */ -static void smc91c111_pop_tx_fifo_done(smc91c111_state *s) -{ - int i; - - if (s->tx_fifo_done_len == 0) - return; - s->tx_fifo_done_len--; - for (i = 0; i < s->tx_fifo_done_len; i++) - s->tx_fifo_done[i] = s->tx_fifo_done[i + 1]; -} - -/* Release the memory allocated to a packet. */ -static void smc91c111_release_packet(smc91c111_state *s, int packet) -{ - s->allocated &= ~(1 << packet); - if (s->tx_alloc == 0x80) - smc91c111_tx_alloc(s); -} - -/* Flush the TX FIFO. */ -static void smc91c111_do_tx(smc91c111_state *s) -{ - int i; - int len; - int control; - int packetnum; - uint8_t *p; - - if ((s->tcr & TCR_TXEN) == 0) - return; - if (s->tx_fifo_len == 0) - return; - for (i = 0; i < s->tx_fifo_len; i++) { - packetnum = s->tx_fifo[i]; - p = &s->data[packetnum][0]; - /* Set status word. */ - *(p++) = 0x01; - *(p++) = 0x40; - len = *(p++); - len |= ((int)*(p++)) << 8; - len -= 6; - control = p[len + 1]; - if (control & 0x20) - len++; - /* ??? This overwrites the data following the buffer. - Don't know what real hardware does. */ - if (len < 64 && (s->tcr & TCR_PAD_EN)) { - memset(p + len, 0, 64 - len); - len = 64; - } -#if 0 - { - int add_crc; - - /* The card is supposed to append the CRC to the frame. - However none of the other network traffic has the CRC - appended. Suspect this is low level ethernet detail we - don't need to worry about. */ - add_crc = (control & 0x10) || (s->tcr & TCR_NOCRC) == 0; - if (add_crc) { - uint32_t crc; - - crc = crc32(~0, p, len); - memcpy(p + len, &crc, 4); - len += 4; - } - } -#endif - if (s->ctr & CTR_AUTO_RELEASE) - /* Race? */ - smc91c111_release_packet(s, packetnum); - else if (s->tx_fifo_done_len < NUM_PACKETS) - s->tx_fifo_done[s->tx_fifo_done_len++] = packetnum; - qemu_send_packet(qemu_get_queue(s->nic), p, len); - } - s->tx_fifo_len = 0; - smc91c111_update(s); -} - -/* Add a packet to the TX FIFO. */ -static void smc91c111_queue_tx(smc91c111_state *s, int packet) -{ - if (s->tx_fifo_len == NUM_PACKETS) - return; - s->tx_fifo[s->tx_fifo_len++] = packet; - smc91c111_do_tx(s); -} - -static void smc91c111_reset(DeviceState *dev) -{ - smc91c111_state *s = FROM_SYSBUS(smc91c111_state, SYS_BUS_DEVICE(dev)); - s->bank = 0; - s->tx_fifo_len = 0; - s->tx_fifo_done_len = 0; - s->rx_fifo_len = 0; - s->allocated = 0; - s->packet_num = 0; - s->tx_alloc = 0; - s->tcr = 0; - s->rcr = 0; - s->cr = 0xa0b1; - s->ctr = 0x1210; - s->ptr = 0; - s->ercv = 0x1f; - s->int_level = INT_TX_EMPTY; - s->int_mask = 0; - smc91c111_update(s); -} - -#define SET_LOW(name, val) s->name = (s->name & 0xff00) | val -#define SET_HIGH(name, val) s->name = (s->name & 0xff) | (val << 8) - -static void smc91c111_writeb(void *opaque, hwaddr offset, - uint32_t value) -{ - smc91c111_state *s = (smc91c111_state *)opaque; - - offset = offset & 0xf; - if (offset == 14) { - s->bank = value; - return; - } - if (offset == 15) - return; - switch (s->bank) { - case 0: - switch (offset) { - case 0: /* TCR */ - SET_LOW(tcr, value); - return; - case 1: - SET_HIGH(tcr, value); - return; - case 4: /* RCR */ - SET_LOW(rcr, value); - return; - case 5: - SET_HIGH(rcr, value); - if (s->rcr & RCR_SOFT_RST) - smc91c111_reset(&s->busdev.qdev); - return; - case 10: case 11: /* RPCR */ - /* Ignored */ - return; - case 12: case 13: /* Reserved */ - return; - } - break; - - case 1: - switch (offset) { - case 0: /* CONFIG */ - SET_LOW(cr, value); - return; - case 1: - SET_HIGH(cr,value); - return; - case 2: case 3: /* BASE */ - case 4: case 5: case 6: case 7: case 8: case 9: /* IA */ - /* Not implemented. */ - return; - case 10: /* Genral Purpose */ - SET_LOW(gpr, value); - return; - case 11: - SET_HIGH(gpr, value); - return; - case 12: /* Control */ - if (value & 1) - fprintf(stderr, "smc91c111:EEPROM store not implemented\n"); - if (value & 2) - fprintf(stderr, "smc91c111:EEPROM reload not implemented\n"); - value &= ~3; - SET_LOW(ctr, value); - return; - case 13: - SET_HIGH(ctr, value); - return; - } - break; - - case 2: - switch (offset) { - case 0: /* MMU Command */ - switch (value >> 5) { - case 0: /* no-op */ - break; - case 1: /* Allocate for TX. */ - s->tx_alloc = 0x80; - s->int_level &= ~INT_ALLOC; - smc91c111_update(s); - smc91c111_tx_alloc(s); - break; - case 2: /* Reset MMU. */ - s->allocated = 0; - s->tx_fifo_len = 0; - s->tx_fifo_done_len = 0; - s->rx_fifo_len = 0; - s->tx_alloc = 0; - break; - case 3: /* Remove from RX FIFO. */ - smc91c111_pop_rx_fifo(s); - break; - case 4: /* Remove from RX FIFO and release. */ - if (s->rx_fifo_len > 0) { - smc91c111_release_packet(s, s->rx_fifo[0]); - } - smc91c111_pop_rx_fifo(s); - break; - case 5: /* Release. */ - smc91c111_release_packet(s, s->packet_num); - break; - case 6: /* Add to TX FIFO. */ - smc91c111_queue_tx(s, s->packet_num); - break; - case 7: /* Reset TX FIFO. */ - s->tx_fifo_len = 0; - s->tx_fifo_done_len = 0; - break; - } - return; - case 1: - /* Ignore. */ - return; - case 2: /* Packet Number Register */ - s->packet_num = value; - return; - case 3: case 4: case 5: - /* Should be readonly, but linux writes to them anyway. Ignore. */ - return; - case 6: /* Pointer */ - SET_LOW(ptr, value); - return; - case 7: - SET_HIGH(ptr, value); - return; - case 8: case 9: case 10: case 11: /* Data */ - { - int p; - int n; - - if (s->ptr & 0x8000) - n = s->rx_fifo[0]; - else - n = s->packet_num; - p = s->ptr & 0x07ff; - if (s->ptr & 0x4000) { - s->ptr = (s->ptr & 0xf800) | ((s->ptr + 1) & 0x7ff); - } else { - p += (offset & 3); - } - s->data[n][p] = value; - } - return; - case 12: /* Interrupt ACK. */ - s->int_level &= ~(value & 0xd6); - if (value & INT_TX) - smc91c111_pop_tx_fifo_done(s); - smc91c111_update(s); - return; - case 13: /* Interrupt mask. */ - s->int_mask = value; - smc91c111_update(s); - return; - } - break; - - case 3: - switch (offset) { - case 0: case 1: case 2: case 3: case 4: case 5: case 6: case 7: - /* Multicast table. */ - /* Not implemented. */ - return; - case 8: case 9: /* Management Interface. */ - /* Not implemented. */ - return; - case 12: /* Early receive. */ - s->ercv = value & 0x1f; - return; - case 13: - /* Ignore. */ - return; - } - break; - } - hw_error("smc91c111_write: Bad reg %d:%x\n", s->bank, (int)offset); -} - -static uint32_t smc91c111_readb(void *opaque, hwaddr offset) -{ - smc91c111_state *s = (smc91c111_state *)opaque; - - offset = offset & 0xf; - if (offset == 14) { - return s->bank; - } - if (offset == 15) - return 0x33; - switch (s->bank) { - case 0: - switch (offset) { - case 0: /* TCR */ - return s->tcr & 0xff; - case 1: - return s->tcr >> 8; - case 2: /* EPH Status */ - return 0; - case 3: - return 0x40; - case 4: /* RCR */ - return s->rcr & 0xff; - case 5: - return s->rcr >> 8; - case 6: /* Counter */ - case 7: - /* Not implemented. */ - return 0; - case 8: /* Memory size. */ - return NUM_PACKETS; - case 9: /* Free memory available. */ - { - int i; - int n; - n = 0; - for (i = 0; i < NUM_PACKETS; i++) { - if (s->allocated & (1 << i)) - n++; - } - return n; - } - case 10: case 11: /* RPCR */ - /* Not implemented. */ - return 0; - case 12: case 13: /* Reserved */ - return 0; - } - break; - - case 1: - switch (offset) { - case 0: /* CONFIG */ - return s->cr & 0xff; - case 1: - return s->cr >> 8; - case 2: case 3: /* BASE */ - /* Not implemented. */ - return 0; - case 4: case 5: case 6: case 7: case 8: case 9: /* IA */ - return s->conf.macaddr.a[offset - 4]; - case 10: /* General Purpose */ - return s->gpr & 0xff; - case 11: - return s->gpr >> 8; - case 12: /* Control */ - return s->ctr & 0xff; - case 13: - return s->ctr >> 8; - } - break; - - case 2: - switch (offset) { - case 0: case 1: /* MMUCR Busy bit. */ - return 0; - case 2: /* Packet Number. */ - return s->packet_num; - case 3: /* Allocation Result. */ - return s->tx_alloc; - case 4: /* TX FIFO */ - if (s->tx_fifo_done_len == 0) - return 0x80; - else - return s->tx_fifo_done[0]; - case 5: /* RX FIFO */ - if (s->rx_fifo_len == 0) - return 0x80; - else - return s->rx_fifo[0]; - case 6: /* Pointer */ - return s->ptr & 0xff; - case 7: - return (s->ptr >> 8) & 0xf7; - case 8: case 9: case 10: case 11: /* Data */ - { - int p; - int n; - - if (s->ptr & 0x8000) - n = s->rx_fifo[0]; - else - n = s->packet_num; - p = s->ptr & 0x07ff; - if (s->ptr & 0x4000) { - s->ptr = (s->ptr & 0xf800) | ((s->ptr + 1) & 0x07ff); - } else { - p += (offset & 3); - } - return s->data[n][p]; - } - case 12: /* Interrupt status. */ - return s->int_level; - case 13: /* Interrupt mask. */ - return s->int_mask; - } - break; - - case 3: - switch (offset) { - case 0: case 1: case 2: case 3: case 4: case 5: case 6: case 7: - /* Multicast table. */ - /* Not implemented. */ - return 0; - case 8: /* Management Interface. */ - /* Not implemented. */ - return 0x30; - case 9: - return 0x33; - case 10: /* Revision. */ - return 0x91; - case 11: - return 0x33; - case 12: - return s->ercv; - case 13: - return 0; - } - break; - } - hw_error("smc91c111_read: Bad reg %d:%x\n", s->bank, (int)offset); - return 0; -} - -static void smc91c111_writew(void *opaque, hwaddr offset, - uint32_t value) -{ - smc91c111_writeb(opaque, offset, value & 0xff); - smc91c111_writeb(opaque, offset + 1, value >> 8); -} - -static void smc91c111_writel(void *opaque, hwaddr offset, - uint32_t value) -{ - /* 32-bit writes to offset 0xc only actually write to the bank select - register (offset 0xe) */ - if (offset != 0xc) - smc91c111_writew(opaque, offset, value & 0xffff); - smc91c111_writew(opaque, offset + 2, value >> 16); -} - -static uint32_t smc91c111_readw(void *opaque, hwaddr offset) -{ - uint32_t val; - val = smc91c111_readb(opaque, offset); - val |= smc91c111_readb(opaque, offset + 1) << 8; - return val; -} - -static uint32_t smc91c111_readl(void *opaque, hwaddr offset) -{ - uint32_t val; - val = smc91c111_readw(opaque, offset); - val |= smc91c111_readw(opaque, offset + 2) << 16; - return val; -} - -static int smc91c111_can_receive(NetClientState *nc) -{ - smc91c111_state *s = qemu_get_nic_opaque(nc); - - if ((s->rcr & RCR_RXEN) == 0 || (s->rcr & RCR_SOFT_RST)) - return 1; - if (s->allocated == (1 << NUM_PACKETS) - 1) - return 0; - return 1; -} - -static ssize_t smc91c111_receive(NetClientState *nc, const uint8_t *buf, size_t size) -{ - smc91c111_state *s = qemu_get_nic_opaque(nc); - int status; - int packetsize; - uint32_t crc; - int packetnum; - uint8_t *p; - - if ((s->rcr & RCR_RXEN) == 0 || (s->rcr & RCR_SOFT_RST)) - return -1; - /* Short packets are padded with zeros. Receiving a packet - < 64 bytes long is considered an error condition. */ - if (size < 64) - packetsize = 64; - else - packetsize = (size & ~1); - packetsize += 6; - crc = (s->rcr & RCR_STRIP_CRC) == 0; - if (crc) - packetsize += 4; - /* TODO: Flag overrun and receive errors. */ - if (packetsize > 2048) - return -1; - packetnum = smc91c111_allocate_packet(s); - if (packetnum == 0x80) - return -1; - s->rx_fifo[s->rx_fifo_len++] = packetnum; - - p = &s->data[packetnum][0]; - /* ??? Multicast packets? */ - status = 0; - if (size > 1518) - status |= RS_TOOLONG; - if (size & 1) - status |= RS_ODDFRAME; - *(p++) = status & 0xff; - *(p++) = status >> 8; - *(p++) = packetsize & 0xff; - *(p++) = packetsize >> 8; - memcpy(p, buf, size & ~1); - p += (size & ~1); - /* Pad short packets. */ - if (size < 64) { - int pad; - - if (size & 1) - *(p++) = buf[size - 1]; - pad = 64 - size; - memset(p, 0, pad); - p += pad; - size = 64; - } - /* It's not clear if the CRC should go before or after the last byte in - odd sized packets. Linux disables the CRC, so that's no help. - The pictures in the documentation show the CRC aligned on a 16-bit - boundary before the last odd byte, so that's what we do. */ - if (crc) { - crc = crc32(~0, buf, size); - *(p++) = crc & 0xff; crc >>= 8; - *(p++) = crc & 0xff; crc >>= 8; - *(p++) = crc & 0xff; crc >>= 8; - *(p++) = crc & 0xff; - } - if (size & 1) { - *(p++) = buf[size - 1]; - *p = 0x60; - } else { - *(p++) = 0; - *p = 0x40; - } - /* TODO: Raise early RX interrupt? */ - s->int_level |= INT_RCV; - smc91c111_update(s); - - return size; -} - -static const MemoryRegionOps smc91c111_mem_ops = { - /* The special case for 32 bit writes to 0xc means we can't just - * set .impl.min/max_access_size to 1, unfortunately - */ - .old_mmio = { - .read = { smc91c111_readb, smc91c111_readw, smc91c111_readl, }, - .write = { smc91c111_writeb, smc91c111_writew, smc91c111_writel, }, - }, - .endianness = DEVICE_NATIVE_ENDIAN, -}; - -static void smc91c111_cleanup(NetClientState *nc) -{ - smc91c111_state *s = qemu_get_nic_opaque(nc); - - s->nic = NULL; -} - -static NetClientInfo net_smc91c111_info = { - .type = NET_CLIENT_OPTIONS_KIND_NIC, - .size = sizeof(NICState), - .can_receive = smc91c111_can_receive, - .receive = smc91c111_receive, - .cleanup = smc91c111_cleanup, -}; - -static int smc91c111_init1(SysBusDevice *dev) -{ - smc91c111_state *s = FROM_SYSBUS(smc91c111_state, dev); - memory_region_init_io(&s->mmio, &smc91c111_mem_ops, s, - "smc91c111-mmio", 16); - sysbus_init_mmio(dev, &s->mmio); - sysbus_init_irq(dev, &s->irq); - qemu_macaddr_default_if_unset(&s->conf.macaddr); - s->nic = qemu_new_nic(&net_smc91c111_info, &s->conf, - object_get_typename(OBJECT(dev)), dev->qdev.id, s); - qemu_format_nic_info_str(qemu_get_queue(s->nic), s->conf.macaddr.a); - /* ??? Save/restore. */ - return 0; -} - -static Property smc91c111_properties[] = { - DEFINE_NIC_PROPERTIES(smc91c111_state, conf), - DEFINE_PROP_END_OF_LIST(), -}; - -static void smc91c111_class_init(ObjectClass *klass, void *data) -{ - DeviceClass *dc = DEVICE_CLASS(klass); - SysBusDeviceClass *k = SYS_BUS_DEVICE_CLASS(klass); - - k->init = smc91c111_init1; - dc->reset = smc91c111_reset; - dc->vmsd = &vmstate_smc91c111; - dc->props = smc91c111_properties; -} - -static const TypeInfo smc91c111_info = { - .name = "smc91c111", - .parent = TYPE_SYS_BUS_DEVICE, - .instance_size = sizeof(smc91c111_state), - .class_init = smc91c111_class_init, -}; - -static void smc91c111_register_types(void) -{ - type_register_static(&smc91c111_info); -} - -/* Legacy helper function. Should go away when machine config files are - implemented. */ -void smc91c111_init(NICInfo *nd, uint32_t base, qemu_irq irq) -{ - DeviceState *dev; - SysBusDevice *s; - - qemu_check_nic_model(nd, "smc91c111"); - dev = qdev_create(NULL, "smc91c111"); - qdev_set_nic_properties(dev, nd); - qdev_init_nofail(dev); - s = SYS_BUS_DEVICE(dev); - sysbus_mmio_map(s, 0, base); - sysbus_connect_irq(s, 0, irq); -} - -type_init(smc91c111_register_types) |