diff options
| -rw-r--r-- | sys/dev/sbus/asio.c | 239 | ||||
| -rw-r--r-- | sys/dev/sbus/asioreg.h | 47 | ||||
| -rw-r--r-- | sys/dev/sbus/files.sbus | 7 |
3 files changed, 292 insertions, 1 deletions
diff --git a/sys/dev/sbus/asio.c b/sys/dev/sbus/asio.c new file mode 100644 index 00000000000..761d8314a49 --- /dev/null +++ b/sys/dev/sbus/asio.c @@ -0,0 +1,239 @@ +/* $OpenBSD: asio.c,v 1.1 2002/03/06 16:09:46 jason Exp $ */ + +/* + * Copyright (c) 2002 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. + * 3. All advertising materials mentioning features or use of this software + * must display the following acknowledgement: + * This product includes software developed by Jason L. Wright + * 4. The name of the author may not be used to endorse or promote products + * derived from this software without specific prior written permission. + * + * 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. + */ + +/* + * Driver for Aurora 210SJ serial ports. + */ + +#include <sys/types.h> +#include <sys/param.h> +#include <sys/systm.h> +#include <sys/kernel.h> +#include <sys/device.h> +#include <sys/conf.h> +#include <sys/timeout.h> +#include <sys/tty.h> + +#include <machine/bus.h> +#include <machine/autoconf.h> +#include <machine/openfirm.h> + +#include <dev/sbus/sbusvar.h> +#include <dev/sbus/asioreg.h> +#include <dev/ic/comvar.h> + +#define BAUD_BASE (1843200) + +struct asio_port { + u_int8_t ap_inten; + bus_space_handle_t ap_bh; + struct device *ap_dev; +}; + +struct asio_softc { + struct device sc_dev; + bus_space_tag_t sc_bt; + bus_space_handle_t sc_csr_h; + void *sc_ih; + struct asio_port sc_ports[2]; + int sc_nports; +}; + +struct asio_attach_args { + char *aaa_name; + int aaa_port; + bus_space_tag_t aaa_iot; + bus_space_handle_t aaa_ioh; +}; + +int asio_match __P((struct device *, void *, void *)); +void asio_attach __P((struct device *, struct device *, void *)); +int asio_print __P((void *, const char *)); +int asio_intr __P((void *)); + +struct cfattach asio_ca = { + sizeof(struct asio_softc), asio_match, asio_attach +}; + +struct cfdriver asio_cd = { + NULL, "asio", DV_DULL +}; + +int com_asio_match __P((struct device *, void *, void *)); +void com_asio_attach __P((struct device *, struct device *, void *)); + +struct cfattach com_asio_ca = { + sizeof(struct com_softc), com_asio_match, com_asio_attach +}; + +int +asio_match(parent, match, aux) + struct device *parent; + void *match; + void *aux; +{ + struct sbus_attach_args *sa = aux; + + if (strcmp(sa->sa_name, "sio2") == 0) + return (1); + return (0); +} + +void +asio_attach(parent, self, aux) + struct device *parent, *self; + void *aux; +{ + struct asio_softc *sc = (void *)self; + struct sbus_attach_args *sa = aux; + struct asio_attach_args aaa; + int i, map; + u_int8_t csr; + + sc->sc_bt = sa->sa_bustag; + + if (sa->sa_nreg < 3) { + printf(": %d registers expected, got %d\n", + 3, sa->sa_nreg); + return; + } + + if (sbus_bus_map(sa->sa_bustag, + sa->sa_reg[0].sbr_slot, + sa->sa_reg[0].sbr_offset, + sa->sa_reg[0].sbr_size, + BUS_SPACE_MAP_LINEAR, 0, &sc->sc_csr_h)) { + printf(": couldn't map csr\n"); + return; + } + + for (i = 0; i < 2; i++) { + if (sbus_bus_map(sa->sa_bustag, + sa->sa_reg[i + 1].sbr_slot, + sa->sa_reg[i + 1].sbr_offset, + sa->sa_reg[i + 1].sbr_size, + BUS_SPACE_MAP_LINEAR, 0, &sc->sc_ports[i].ap_bh)) { + printf(": couldn't map uart%d\n", i); + return; + } + } + + /* XXX: revision specific*/ + sc->sc_ports[0].ap_inten = ASIO_CSR_SJ_UART0_INTEN; + sc->sc_ports[1].ap_inten = ASIO_CSR_UART1_INTEN; + + printf("\n"); + + sc->sc_nports = 2; + + for (i = 0; i < sc->sc_nports; i++) { + aaa.aaa_name = "com"; + aaa.aaa_port = i; + aaa.aaa_iot = sc->sc_bt; + aaa.aaa_ioh = sc->sc_ports[i].ap_bh; + sc->sc_ports[i].ap_dev = config_found(self, &aaa, asio_print); + } + + /* XXX won't work if pio comes along later and zots this.. */ + csr = ASIO_CSR_SBUS_INT5; + for (map = 0, i = 0; i < sc->sc_nports; i++) { + if (sc->sc_ports[i].ap_dev != NULL) { + map = 1; + csr |= sc->sc_ports[i].ap_inten; + } + } + csr |= 2; + bus_space_write_1(sc->sc_bt, sc->sc_csr_h, ASIO_CSR, csr); + + if (map == 0) + return; + + sc->sc_ih = bus_intr_establish(sa->sa_bustag, sa->sa_pri, + IPL_TTY, 0, asio_intr, sc); + if (sc->sc_ih == NULL) { + printf("%s: failed to map interrupt\n", + sc->sc_dev.dv_xname); + return; + } +} + +int +asio_print(aux, name) + void *aux; + const char *name; +{ + struct asio_attach_args *aaa; + + if (name != NULL) + printf("%s at %s", aaa->aaa_name, name); + printf(" port %d", aaa->aaa_port); + return (UNCONF); +} + +int +asio_intr(vsc) + void *vsc; +{ + struct asio_softc *sc = vsc; + int i, r = 0; + + for (i = 0; i < sc->sc_nports; i++) + r += comintr(sc->sc_ports[i].ap_dev); + return (r); +} + +int +com_asio_match(parent, match, aux) + struct device *parent; + void *match; + void *aux; +{ + return (1); +} + +void +com_asio_attach(parent, self, aux) + struct device *parent, *self; + void *aux; +{ + struct com_softc *sc = (struct com_softc *)self; + struct asio_attach_args *aaa = aux; + + sc->sc_iot = aaa->aaa_iot; + sc->sc_ioh = aaa->aaa_ioh; + sc->sc_iobase = sc->sc_ioh; + sc->sc_hwflags = 0; + sc->sc_swflags = 0; + sc->sc_frequency = BAUD_BASE; + com_attach_subr(sc); +} diff --git a/sys/dev/sbus/asioreg.h b/sys/dev/sbus/asioreg.h new file mode 100644 index 00000000000..b58490914e5 --- /dev/null +++ b/sys/dev/sbus/asioreg.h @@ -0,0 +1,47 @@ +/* $OpenBSD: asioreg.h,v 1.1 2002/03/06 16:09:46 jason Exp $ */ + +/* + * Copyright (c) 2002 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. + * 3. All advertising materials mentioning features or use of this software + * must display the following acknowledgement: + * This product includes software developed by Jason L. Wright + * 4. The name of the author may not be used to endorse or promote products + * derived from this software without specific prior written permission. + * + * 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. + */ + +#define ASIO_CSR 0 /* bus space offset */ +/* + * As a feature, different board revisions 's' and 'sj' define the + * interrupt enables differently. + */ +#define ASIO_CSR_SBUS_INT7 0x80 /* sbus interrupt 7 */ +#define ASIO_CSR_SBUS_INT6 0x40 /* sbus interrupt 6 */ +#define ASIO_CSR_SBUS_INT5 0x20 /* sbus interrupt 5 */ +#define ASIO_CSR_S_PAR_INTEN 0x08 /* parallel interrupt enable */ +#define ASIO_CSR_SJ_UART0_INTEN 0x08 /* sj: uart0 interrupt enable */ +#define ASIO_CSR_UART1_INTEN 0x04 /* uart1 interrupt enable */ +#define ASIO_CSR_S_UART0_INTEN 0x02 /* s: uart0 interrupt enable */ +#define ASIO_CSR_SJ_PAR_INTEN 0x02 /* sj: parallel interrupt enable */ +#define ASIO_CSR_LPTOE 0x01 diff --git a/sys/dev/sbus/files.sbus b/sys/dev/sbus/files.sbus index ba9590ac541..396b294f6fe 100644 --- a/sys/dev/sbus/files.sbus +++ b/sys/dev/sbus/files.sbus @@ -1,4 +1,4 @@ -# $OpenBSD: files.sbus,v 1.13 2002/01/30 23:58:03 jason Exp $ +# $OpenBSD: files.sbus,v 1.14 2002/03/06 16:09:46 jason Exp $ # $NetBSD: files.sbus,v 1.16 2000/12/08 17:29:12 martin Exp $ # # Config file and device description for machine-independent SBUS code. @@ -78,3 +78,8 @@ file dev/sbus/spif.c spif | stty | sbpp needs-flag attach uperf at sbus with uperf_sbus file dev/sbus/uperf_sbus.c uperf_sbus + +device asio {} +attach asio at sbus +attach com at asio with com_asio +file dev/sbus/asio.c asio | com_asio |