Page MenuHomeFreeBSD
Differential D5752 Diff 14954 head/sys/arm/allwinner/if_emac.c

Changeset View

Standalone View

View Options

head/sys/arm/allwinner/if_emac.c

Show First 20 Lines • Show All 72 Lines • ▼ Show 20 Lines
#include <dev/ofw/ofw_bus.h> #include <dev/ofw/ofw_bus.h>
#include <dev/ofw/ofw_bus_subr.h> #include <dev/ofw/ofw_bus_subr.h>
#include <dev/mii/mii.h> #include <dev/mii/mii.h>
#include <dev/mii/miivar.h> #include <dev/mii/miivar.h>
#include <arm/allwinner/if_emacreg.h> #include <arm/allwinner/if_emacreg.h>
#include <dev/extres/clk/clk.h>
#include "miibus_if.h" #include "miibus_if.h"
#include "gpio_if.h" #include "gpio_if.h"
#include "a10_clk.h"
#include "a10_sramc.h" #include "a10_sramc.h"
struct emac_softc { struct emac_softc {
struct ifnet *emac_ifp; struct ifnet *emac_ifp;
device_t emac_dev; device_t emac_dev;
device_t emac_miibus; device_t emac_miibus;
bus_space_handle_t emac_handle; bus_space_handle_t emac_handle;
bus_space_tag_t emac_tag; bus_space_tag_t emac_tag;
struct resource *emac_res; struct resource *emac_res;
struct resource *emac_irq; struct resource *emac_irq;
void *emac_intrhand; void *emac_intrhand;
clk_t emac_clk;
int emac_if_flags; int emac_if_flags;
struct mtx emac_mtx; struct mtx emac_mtx;
struct callout emac_tick_ch; struct callout emac_tick_ch;
int emac_watchdog_timer; int emac_watchdog_timer;
int emac_rx_process_limit; int emac_rx_process_limit;
int emac_link; int emac_link;
uint32_t emac_fifo_mask; uint32_t emac_fifo_mask;
}; };
static int emac_probe(device_t); static int emac_probe(device_t);
static int emac_attach(device_t); static int emac_attach(device_t);
static int emac_detach(device_t); static int emac_detach(device_t);
static int emac_shutdown(device_t); static int emac_shutdown(device_t);
static int emac_suspend(device_t); static int emac_suspend(device_t);
static int emac_resume(device_t); static int emac_resume(device_t);
static void emac_sys_setup(void); static int emac_sys_setup(struct emac_softc *);
static void emac_reset(struct emac_softc *); static void emac_reset(struct emac_softc *);
static void emac_init_locked(struct emac_softc *); static void emac_init_locked(struct emac_softc *);
static void emac_start_locked(struct ifnet *); static void emac_start_locked(struct ifnet *);
static void emac_init(void *); static void emac_init(void *);
static void emac_stop_locked(struct emac_softc *); static void emac_stop_locked(struct emac_softc *);
static void emac_intr(void *); static void emac_intr(void *);
static int emac_ioctl(struct ifnet *, u_long, caddr_t); static int emac_ioctl(struct ifnet *, u_long, caddr_t);
Show All 11 Lines
static int sysctl_int_range(SYSCTL_HANDLER_ARGS, int, int); static int sysctl_int_range(SYSCTL_HANDLER_ARGS, int, int);
static int sysctl_hw_emac_proc_limit(SYSCTL_HANDLER_ARGS); static int sysctl_hw_emac_proc_limit(SYSCTL_HANDLER_ARGS);
#define EMAC_READ_REG(sc, reg) \ #define EMAC_READ_REG(sc, reg) \
bus_space_read_4(sc->emac_tag, sc->emac_handle, reg) bus_space_read_4(sc->emac_tag, sc->emac_handle, reg)
#define EMAC_WRITE_REG(sc, reg, val) \ #define EMAC_WRITE_REG(sc, reg, val) \
bus_space_write_4(sc->emac_tag, sc->emac_handle, reg, val) bus_space_write_4(sc->emac_tag, sc->emac_handle, reg, val)
static void static int
emac_sys_setup(void) emac_sys_setup(struct emac_softc *sc)
{ {
int error;
/* Activate EMAC clock. */ /* Activate EMAC clock. */
a10_clk_emac_activate(); error = clk_get_by_ofw_index(sc->emac_dev, 0, &sc->emac_clk);
if (error != 0) {
device_printf(sc->emac_dev, "cannot get clock\n");
return (error);
}
error = clk_enable(sc->emac_clk);
if (error != 0) {
device_printf(sc->emac_dev, "cannot enable clock\n");
return (error);
}
/* Map sram. */ /* Map sram. */
a10_map_to_emac(); a10_map_to_emac();
return (0);
} }
static void static void
emac_get_hwaddr(struct emac_softc *sc, uint8_t *hwaddr) emac_get_hwaddr(struct emac_softc *sc, uint8_t *hwaddr)
{ {
uint32_t val0, val1, rnd; uint32_t val0, val1, rnd;
/* /*
▲ Show 20 Lines • Show All 622 Lines • ▼ Show 20 Lines if (sc->emac_intrhand != NULL)
bus_teardown_intr(sc->emac_dev, sc->emac_irq, bus_teardown_intr(sc->emac_dev, sc->emac_irq,
sc->emac_intrhand); sc->emac_intrhand);
if (sc->emac_miibus != NULL) { if (sc->emac_miibus != NULL) {
device_delete_child(sc->emac_dev, sc->emac_miibus); device_delete_child(sc->emac_dev, sc->emac_miibus);
bus_generic_detach(sc->emac_dev); bus_generic_detach(sc->emac_dev);
} }
if (sc->emac_clk != NULL)
clk_disable(sc->emac_clk);
if (sc->emac_res != NULL) if (sc->emac_res != NULL)
bus_release_resource(dev, SYS_RES_MEMORY, 0, sc->emac_res); bus_release_resource(dev, SYS_RES_MEMORY, 0, sc->emac_res);
if (sc->emac_irq != NULL) if (sc->emac_irq != NULL)
bus_release_resource(dev, SYS_RES_IRQ, 0, sc->emac_irq); bus_release_resource(dev, SYS_RES_IRQ, 0, sc->emac_irq);
if (sc->emac_ifp != NULL) if (sc->emac_ifp != NULL)
if_free(sc->emac_ifp); if_free(sc->emac_ifp);
▲ Show 20 Lines • Show All 97 Lines • ▼ Show 20 Lines if (error == 0) {
if (sc->emac_rx_process_limit < EMAC_PROC_MIN || if (sc->emac_rx_process_limit < EMAC_PROC_MIN ||
sc->emac_rx_process_limit > EMAC_PROC_MAX) { sc->emac_rx_process_limit > EMAC_PROC_MAX) {
device_printf(dev, "process_limit value out of range; " device_printf(dev, "process_limit value out of range; "
"using default: %d\n", EMAC_PROC_DEFAULT); "using default: %d\n", EMAC_PROC_DEFAULT);
sc->emac_rx_process_limit = EMAC_PROC_DEFAULT; sc->emac_rx_process_limit = EMAC_PROC_DEFAULT;
} }
} }
/* Setup EMAC */ /* Setup EMAC */
emac_sys_setup(); error = emac_sys_setup(sc);
if (error != 0)
goto fail;
emac_reset(sc); emac_reset(sc);
ifp = sc->emac_ifp = if_alloc(IFT_ETHER); ifp = sc->emac_ifp = if_alloc(IFT_ETHER);
if (ifp == NULL) { if (ifp == NULL) {
device_printf(dev, "unable to allocate ifp\n"); device_printf(dev, "unable to allocate ifp\n");
error = ENOSPC; error = ENOSPC;
goto fail; goto fail;
} }
▲ Show 20 Lines • Show All 250 Lines • Show Last 20 Lines