static int
mlx_pci_attach(device_t dev)
{
struct mlx_softc *sc;
struct mlx_ident *m;
int error;
debug_called(1);
pci_enable_busmaster(dev);
sc = device_get_softc(dev);
sc->mlx_dev = dev;
/*
* Work out what sort of adapter this is (we need to know this in order
* to map the appropriate interface resources).
*/
m = mlx_pci_match(dev);
if (m == NULL) /* shouldn't happen */
return(ENXIO);
sc->mlx_iftype = m->iftype;
mtx_init(&sc->mlx_io_lock, "mlx I/O", NULL, MTX_DEF);
sx_init(&sc->mlx_config_lock, "mlx config");
callout_init_mtx(&sc->mlx_timeout, &sc->mlx_io_lock, 0);
/*
* Allocate the PCI register window.
*/
/* type 2/3 adapters have an I/O region we don't prefer at base 0 */
switch(sc->mlx_iftype) {
case MLX_IFTYPE_2:
case MLX_IFTYPE_3:
sc->mlx_mem_type = SYS_RES_MEMORY;
sc->mlx_mem_rid = MLX_CFG_BASE1;
sc->mlx_mem = bus_alloc_resource_any(dev, sc->mlx_mem_type,
&sc->mlx_mem_rid, RF_ACTIVE);
if (sc->mlx_mem == NULL) {
sc->mlx_mem_type = SYS_RES_IOPORT;
sc->mlx_mem_rid = MLX_CFG_BASE0;
sc->mlx_mem = bus_alloc_resource_any(dev, sc->mlx_mem_type,
&sc->mlx_mem_rid, RF_ACTIVE);
}
break;
case MLX_IFTYPE_4:
case MLX_IFTYPE_5:
sc->mlx_mem_type = SYS_RES_MEMORY;
sc->mlx_mem_rid = MLX_CFG_BASE0;
sc->mlx_mem = bus_alloc_resource_any(dev, sc->mlx_mem_type,
&sc->mlx_mem_rid, RF_ACTIVE);
break;
}
if (sc->mlx_mem == NULL) {
device_printf(sc->mlx_dev, "couldn't allocate mailbox window\n");
mlx_free(sc);
return(ENXIO);
}
/*
* Allocate the parent bus DMA tag appropriate for PCI.
*/
error = bus_dma_tag_create(bus_get_dma_tag(dev), /* PCI parent */
1, 0, /* alignment, boundary */
BUS_SPACE_MAXADDR_32BIT, /* lowaddr */
BUS_SPACE_MAXADDR, /* highaddr */
NULL, NULL, /* filter, filterarg */
MAXBSIZE, MLX_NSEG, /* maxsize, nsegments */
BUS_SPACE_MAXSIZE_32BIT, /* maxsegsize */
BUS_DMA_ALLOCNOW, /* flags */
NULL, /* lockfunc */
NULL, /* lockarg */
&sc->mlx_parent_dmat);
if (error != 0) {
device_printf(dev, "can't allocate parent DMA tag\n");
mlx_free(sc);
return(ENOMEM);
}
/*
* Do bus-independant initialisation.
*/
error = mlx_attach(sc);
if (error != 0) {
mlx_free(sc);
return(error);
}
/*
* Start the controller.
*/
mlx_startup(sc);
return(0);
}
static int
mlx_pci_attach(device_t dev)
{
struct mlx_softc *sc;
int i, error;
u_int32_t command;
debug_called(1);
/*
* Make sure we are going to be able to talk to this board.
*/
command = pci_read_config(dev, PCIR_COMMAND, 2);
if ((command & PCIM_CMD_MEMEN) == 0) {
device_printf(dev, "memory window not available\n");
return(ENXIO);
}
/* force the busmaster enable bit on */
command |= PCIM_CMD_BUSMASTEREN;
pci_write_config(dev, PCIR_COMMAND, command, 2);
/*
* Initialise softc.
*/
sc = device_get_softc(dev);
bzero(sc, sizeof(*sc));
sc->mlx_dev = dev;
/*
* Work out what sort of adapter this is (we need to know this in order
* to map the appropriate interface resources).
*/
sc->mlx_iftype = 0;
for (i = 0; mlx_identifiers[i].vendor != 0; i++) {
if ((mlx_identifiers[i].vendor == pci_get_vendor(dev)) &&
(mlx_identifiers[i].device == pci_get_device(dev))) {
sc->mlx_iftype = mlx_identifiers[i].iftype;
break;
}
}
if (sc->mlx_iftype == 0) /* shouldn't happen */
return(ENXIO);
/*
* Allocate the PCI register window.
*/
/* type 2/3 adapters have an I/O region we don't prefer at base 0 */
switch(sc->mlx_iftype) {
case MLX_IFTYPE_2:
case MLX_IFTYPE_3:
sc->mlx_mem_type = SYS_RES_MEMORY;
sc->mlx_mem_rid = MLX_CFG_BASE1;
sc->mlx_mem = bus_alloc_resource_any(dev, sc->mlx_mem_type,
&sc->mlx_mem_rid, RF_ACTIVE);
if (sc->mlx_mem == NULL) {
sc->mlx_mem_type = SYS_RES_IOPORT;
sc->mlx_mem_rid = MLX_CFG_BASE0;
sc->mlx_mem = bus_alloc_resource_any(dev, sc->mlx_mem_type,
&sc->mlx_mem_rid, RF_ACTIVE);
}
break;
case MLX_IFTYPE_4:
case MLX_IFTYPE_5:
sc->mlx_mem_type = SYS_RES_MEMORY;
sc->mlx_mem_rid = MLX_CFG_BASE0;
sc->mlx_mem = bus_alloc_resource_any(dev, sc->mlx_mem_type,
&sc->mlx_mem_rid, RF_ACTIVE);
break;
}
if (sc->mlx_mem == NULL) {
device_printf(sc->mlx_dev, "couldn't allocate mailbox window\n");
mlx_free(sc);
return(ENXIO);
}
sc->mlx_btag = rman_get_bustag(sc->mlx_mem);
sc->mlx_bhandle = rman_get_bushandle(sc->mlx_mem);
/*
* Allocate the parent bus DMA tag appropriate for PCI.
*/
error = bus_dma_tag_create(NULL, /* parent */
1, 0, /* alignment, boundary */
BUS_SPACE_MAXADDR_32BIT, /* lowaddr */
BUS_SPACE_MAXADDR, /* highaddr */
NULL, NULL, /* filter, filterarg */
MAXBSIZE, MLX_NSEG, /* maxsize, nsegments */
BUS_SPACE_MAXSIZE_32BIT, /* maxsegsize */
BUS_DMA_ALLOCNOW, /* flags */
NULL, /* lockfunc */
NULL, /* lockarg */
&sc->mlx_parent_dmat);
if (error != 0) {
device_printf(dev, "can't allocate parent DMA tag\n");
mlx_free(sc);
return(ENOMEM);
}
/*
* Do bus-independant initialisation.
*/
error = mlx_attach(sc);
if (error != 0) {
mlx_free(sc);
return(error);
}
/*
* Start the controller.
*/
mlx_startup(sc);
return(0);
}