diff options
Diffstat (limited to 'sys/arch/sparc64/dev/ppm.c')
| -rw-r--r-- | sys/arch/sparc64/dev/ppm.c | 155 |
1 files changed, 155 insertions, 0 deletions
diff --git a/sys/arch/sparc64/dev/ppm.c b/sys/arch/sparc64/dev/ppm.c new file mode 100644 index 00000000000..5096daab6a4 --- /dev/null +++ b/sys/arch/sparc64/dev/ppm.c @@ -0,0 +1,155 @@ +/* $OpenBSD: ppm.c,v 1.1 2006/06/02 04:46:01 jason Exp $ */ + +/* + * Copyright (c) 2006 Jason L. Wright (jason@thought.net) + * All rights reserved. + * + * Redistribution and use in source and binary forms, with or without + * modification, are permitted provided that the following conditions + * are met: + * 1. Redistributions of source code must retain the above copyright + * notice, this list of conditions and the following disclaimer. + * 2. Redistributions in binary form must reproduce the above copyright + * notice, this list of conditions and the following disclaimer in the + * documentation and/or other materials provided with the distribution. + * + * THIS SOFTWARE IS PROVIDED BY THE AUTHOR ``AS IS'' AND ANY EXPRESS OR + * IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED + * WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE + * DISCLAIMED. IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR ANY DIRECT, + * INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES + * (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR + * SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) + * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, + * STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN + * ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE + * POSSIBILITY OF SUCH DAMAGE. + */ + +#include <sys/types.h> +#include <sys/param.h> +#include <sys/systm.h> +#include <sys/device.h> + +#include <machine/bus.h> +#include <machine/autoconf.h> +#include <machine/openfirm.h> + +#include <sparc64/dev/ebusreg.h> +#include <sparc64/dev/ebusvar.h> + +#define BBC_GPIOBANK_INDEX 0x0 +#define BBC_GPIOBANK_DATA 0x1 + +#define BBC_GPIO_PORT1_DATA 0x0 +#define BBC_GPIO_PORT2_DATA 0x4 + +#define GPIO_P2D_LED 0x2 + +struct ppm_softc { + struct device sc_dv; + bus_space_tag_t sc_iot; + bus_space_handle_t sc_estarh; + bus_space_handle_t sc_rioh; + bus_space_handle_t sc_gpiobankh; + bus_space_handle_t sc_gpioh; + struct blink_led sc_blink; +}; + +int ppm_match(struct device *, void *, void *); +void ppm_attach(struct device *, struct device *, void *); + +struct cfattach ppm_ca = { + sizeof(struct ppm_softc), ppm_match, ppm_attach +}; + +struct cfdriver ppm_cd = { + NULL, "ppm", DV_DULL +}; + +void ppm_led_blink(void *, int); + +int +ppm_match(struct device *parent, void *match, void *aux) +{ + struct ebus_attach_args *ea = aux; + + if (strcmp(ea->ea_name, "ppm")) + return (0); + return (1); +} + +void +ppm_attach(struct device *parent, struct device *self, void *aux) +{ + struct ppm_softc *sc = (void *)self; + struct ebus_attach_args *ea = aux; + u_int8_t reg; + + sc->sc_iot = ea->ea_memtag; + + if (ea->ea_nregs < 4) { + printf(": need %d regs\n", 4); + return; + } + +#if 0 + if (ebus_bus_map(sc->sc_iot, 0, + EBUS_PADDR_FROM_REG(&ea->ea_regs[0]), ea->ea_regs[0].size, + 0, 0, &sc->sc_estarh)) { + printf(": failed to map estar\n"); + return; + } +#endif +#if 0 + if (ebus_bus_map(sc->sc_iot, 0, + EBUS_PADDR_FROM_REG(&ea->ea_regs[1]), ea->ea_regs[1].size, + 0, 0, &sc->sc_rioh)) { + printf(": failed to map riohr\n"); + return; + } +#endif + + if (ebus_bus_map(sc->sc_iot, 0, + EBUS_PADDR_FROM_REG(&ea->ea_regs[2]), ea->ea_regs[2].size, + 0, 0, &sc->sc_gpiobankh)) { + printf(": failed to map gpiobank\n"); + return; + } + + if (ebus_bus_map(sc->sc_iot, 0, + EBUS_PADDR_FROM_REG(&ea->ea_regs[3]), ea->ea_regs[3].size, + 0, 0, &sc->sc_gpioh)) { + printf(": failed to map gpio\n"); + return; + } + + bus_space_write_1(sc->sc_iot, sc->sc_gpiobankh, + BBC_GPIOBANK_INDEX, 0x22); + bus_space_read_1(sc->sc_iot, sc->sc_gpiobankh, BBC_GPIOBANK_INDEX); + reg = bus_space_read_1(sc->sc_iot, sc->sc_gpiobankh, BBC_GPIOBANK_DATA); + reg &= 0x7f; + bus_space_write_1(sc->sc_iot, sc->sc_gpiobankh,BBC_GPIOBANK_INDEX, reg); + bus_space_read_1(sc->sc_iot, sc->sc_gpiobankh, BBC_GPIOBANK_INDEX); + + + sc->sc_blink.bl_func = ppm_led_blink; + sc->sc_blink.bl_arg = sc; + blink_led_register(&sc->sc_blink); + printf("\n"); +} + +void +ppm_led_blink(void *vsc, int on) +{ + struct ppm_softc *sc = vsc; + u_int8_t r; + + r = bus_space_read_1(sc->sc_iot, sc->sc_gpioh, BBC_GPIO_PORT1_DATA); + if (on) + r |= GPIO_P2D_LED; + else + r &= ~GPIO_P2D_LED; + bus_space_write_1(sc->sc_iot, sc->sc_gpioh, BBC_GPIO_PORT1_DATA, r); + bus_space_read_1(sc->sc_iot, sc->sc_gpioh, BBC_GPIO_PORT1_DATA); +} |