static int
init_device(int devind, struct virtio_device *dev)
{
u32_t base, size;
int iof, r;
pci_reserve(devind);
if ((r = pci_get_bar(devind, PCI_BAR, &base, &size, &iof)) != OK) {
printf("%s: Could not get BAR (%d)", dev->name, r);
return r;
}
if (!iof) {
printf("%s: PCI not IO space?", dev->name);
return EINVAL;
}
if (base & 0xFFFF0000) {
printf("%s: IO port weird (%08x)", dev->name, base);
return EINVAL;
}
/* store the I/O port */
dev->port = base;
/* Reset the device */
virtio_write8(dev, VIRTIO_DEV_STATUS_OFF, 0);
/* Read IRQ line */
dev->irq = pci_attr_r8(devind, PCI_ILR);
return OK;
}
/*===========================================================================*
* atl2_probe *
*===========================================================================*/
static int atl2_probe(int skip)
{
/* Find a matching PCI device.
*/
u16_t vid, did;
char *dname;
int r, devind;
pci_init();
r = pci_first_dev(&devind, &vid, &did);
if (r <= 0)
return -1;
while (skip--) {
r = pci_next_dev(&devind, &vid, &did);
if (r <= 0)
return -1;
}
dname = pci_dev_name(vid, did);
ATL2_DEBUG(("ATL2: found %s (%x/%x) at %s\n",
dname ? dname : "<unknown>", vid, did,
pci_slot_name(devind)));
pci_reserve(devind);
return devind;
}
static int de_probe(dpeth_t *dep, int skip)
{
int i, r, devind;
u16_t vid, did, temp16;
DEBUG(printf("PROBING..."));
r= pci_first_dev(&devind, &vid, &did);
if (r == 0)
return FALSE;
while (skip--)
{
r= pci_next_dev(&devind, &vid, &did);
if (!r)
return FALSE;
}
pci_reserve(devind);
dep->de_base_port = pci_attr_r32(devind, PCI_BAR) & 0xffffffe0;
dep->de_irq = pci_attr_r8(devind, PCI_ILR);
if (dep->de_base_port < DE_MIN_BASE_ADDR)
panic("de_probe: base address invalid: %d", dep->de_base_port);
DEBUG(printf("%s: using I/O address 0x%lx, IRQ %d\n",
dep->de_name, (unsigned long)dep->de_base_port,
dep->de_irq));
dep->de_type = pci_attr_r8(devind, PCI_REV);
/* device validation. We support only the DEC21140A */
if(dep->de_type != DEC_21140A){
dep->de_type = DE_TYPE_UNKNOWN;
printf("%s: unsupported device\n", str_DevName);
return FALSE;
}
de_reset(dep);
DEBUG(printf("Reading SROM...\n"));
for(i=0;i<(1<<SROM_BITWIDTH)-1;i++){
temp16 = de_read_rom(dep, i, SROM_BITWIDTH);
dep->srom[i*2] = temp16 & 0xFF;
dep->srom[i*2+1] = temp16 >> 8;
}
/* TODO: validate SROM content */
/* acquire MAC addr */
DEBUG(printf("Using MAC addr= "));
for(i=0;i<6;i++){
dep->de_address.ea_addr[i] = dep->srom[i+DE_SROM_EA_OFFSET];
DEBUG(printf("%02X%c",dep->de_address.ea_addr[i],i!=5?'-':'\n'));
}
DEBUG(printf("probe success\n"));
return TRUE;
}
/*===========================================================================*
* vbox_init *
*===========================================================================*/
static int vbox_init(int UNUSED(type), sef_init_info_t *UNUSED(info))
{
/* Initialize the device. */
int devind;
u16_t vid, did;
struct VMMDevReportGuestInfo *req;
int r;
interval = DEFAULT_INTERVAL;
drift = DEFAULT_DRIFT;
if (env_argc > 1)
optset_parse(optset_table, env_argv[1]);
pci_init();
r = pci_first_dev(&devind, &vid, &did);
for (;;) {
if (r != 1)
panic("backdoor device not found");
if (vid == VMMDEV_PCI_VID && did == VMMDEV_PCI_DID)
break;
r = pci_next_dev(&devind, &vid, &did);
}
pci_reserve(devind);
port = pci_attr_r32(devind, PCI_BAR) & PCI_BAR_IO_MASK;
irq = pci_attr_r8(devind, PCI_ILR);
hook_id = 0;
if ((r = sys_irqsetpolicy(irq, 0 /* IRQ_REENABLE */, &hook_id)) != OK)
panic("unable to register IRQ: %d", r);
if ((r = sys_irqenable(&hook_id)) != OK)
panic("unable to enable IRQ: %d", r);
if ((vir_ptr = alloc_contig(VMMDEV_BUF_SIZE, 0, &phys_ptr)) == NULL)
panic("unable to allocate memory");
req = (struct VMMDevReportGuestInfo *) vir_ptr;
req->add_version = VMMDEV_GUEST_VERSION;
req->os_type = VMMDEV_GUEST_OS_OTHER;
if ((r = vbox_request(&req->header, phys_ptr,
VMMDEV_REQ_REPORTGUESTINFO, sizeof(*req))) !=
VMMDEV_ERR_OK)
panic("backdoor device not functioning");
ticks = sys_hz() * interval;
sys_setalarm(ticks, 0);
return OK;
}
static int detect_hw(void) {
u32_t device;
int devind;
u16_t v_id, d_id;
/* detect_hw tries to find device and get IRQ and base address
with a little (much) help from the PCI library.
This code is quite device independent and you can copy it.
(just make sure to get the bugs out first)*/
pci_init();
/* get first device and then search through the list */
device = pci_first_dev(&devind, &v_id, &d_id);
while( device > 0 ) {
/* if we have a match...break */
if (v_id == VENDOR_ID && d_id == DEVICE_ID) break;
device = pci_next_dev(&devind, &v_id, &d_id);
}
/* did we find anything? */
if (v_id != VENDOR_ID || d_id != DEVICE_ID) {
return EIO;
}
pci_reserve(devind);
dev.name = pci_dev_name(v_id, d_id);
/* get base address of our device, ignore least signif. bit
this last bit thing could be device dependent, i don't know */
dev.base = pci_attr_r32(devind, PCI_BAR) & 0xfffffffe;
/* get IRQ */
dev.irq = pci_attr_r8(devind, PCI_ILR);
dev.revision = pci_attr_r8(devind, PCI_REV);
dev.d_id = d_id;
dev.v_id = v_id;
dev.devind = devind; /* pci device identifier */
return OK;
}
/*===========================================================================*
* hw_probe *
*===========================================================================*/
static int hw_probe(int skip)
{
u16_t vid, did;
int devind;
pci_init();
if (pci_first_dev(&devind, &vid, &did) != 1)
return(-1);
while (skip--)
if (pci_next_dev(&devind, &vid, &did) != 1)
return(-1);
pci_reserve(devind);
if (debug)
printf("ti1225: found device %04x/%04x\n", vid, did);
return(devind);
}
/*
* Find a matching device. Return TRUE on success.
*/
static int
e1000_probe(e1000_t * e, int skip)
{
int r, devind, ioflag;
u16_t vid, did, cr;
u32_t status;
u32_t base, size;
char *dname;
E1000_DEBUG(3, ("%s: probe()\n", e->name));
/* Initialize communication to the PCI driver. */
pci_init();
/* Attempt to iterate the PCI bus. Start at the beginning. */
if ((r = pci_first_dev(&devind, &vid, &did)) == 0)
return FALSE;
/* Loop devices on the PCI bus. */
while (skip--) {
E1000_DEBUG(3, ("%s: probe() devind %d vid 0x%x did 0x%x\n",
e->name, devind, vid, did));
if (!(r = pci_next_dev(&devind, &vid, &did)))
return FALSE;
}
/* We found a matching card. Set card-specific properties. */
e->eeprom_read = eeprom_eerd;
switch (did) {
case E1000_DEV_ID_ICH10_D_BM_LM:
case E1000_DEV_ID_ICH10_R_BM_LF:
e->eeprom_read = eeprom_ich;
break;
case E1000_DEV_ID_82540EM:
case E1000_DEV_ID_82545EM:
case E1000_DEV_ID_82540EP_LP:
e->eeprom_done_bit = (1 << 4);
e->eeprom_addr_off = 8;
break;
default:
e->eeprom_done_bit = (1 << 1);
e->eeprom_addr_off = 2;
break;
}
/* Inform the user about the new card. */
if (!(dname = pci_dev_name(vid, did)))
dname = "Intel Pro/1000 Gigabit Ethernet Card";
E1000_DEBUG(1, ("%s: %s (%04x/%04x) at %s\n",
e->name, dname, vid, did, pci_slot_name(devind)));
/* Reserve PCI resources found. */
pci_reserve(devind);
/* Read PCI configuration. */
e->irq = pci_attr_r8(devind, PCI_ILR);
if ((r = pci_get_bar(devind, PCI_BAR, &base, &size, &ioflag)) != OK)
panic("failed to get PCI BAR: %d", r);
if (ioflag)
panic("PCI BAR is not for memory");
if ((e->regs = vm_map_phys(SELF, (void *)base, size)) == MAP_FAILED)
panic("failed to map hardware registers from PCI");
/* Enable DMA bus mastering if necessary. */
cr = pci_attr_r16(devind, PCI_CR);
if (!(cr & PCI_CR_MAST_EN))
pci_attr_w16(devind, PCI_CR, cr | PCI_CR_MAST_EN);
/* Optionally map flash memory. */
e1000_map_flash(e, devind, did);
/* Output debug information. */
status = e1000_reg_read(e, E1000_REG_STATUS);
E1000_DEBUG(3, ("%s: MEM at %p, IRQ %d\n", e->name, e->regs, e->irq));
E1000_DEBUG(3, ("%s: link %s, %s duplex\n", e->name,
status & 3 ? "up" : "down", status & 1 ? "full" : "half"));
return TRUE;
}
