139 lines
4.0 KiB
C
139 lines
4.0 KiB
C
/* $NetBSD: com_mv.c,v 1.12 2019/01/27 02:08:42 pgoyette Exp $ */
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/*
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* Copyright (c) 2007, 2010 KIYOHARA Takashi
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* All rights reserved.
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*
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* Redistribution and use in source and binary forms, with or without
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* modification, are permitted provided that the following conditions
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* are met:
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* 1. Redistributions of source code must retain the above copyright
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* notice, this list of conditions and the following disclaimer.
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* 2. Redistributions in binary form must reproduce the above copyright
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* notice, this list of conditions and the following disclaimer in the
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* documentation and/or other materials provided with the distribution.
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*
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* THIS SOFTWARE IS PROVIDED BY THE AUTHOR ``AS IS'' AND ANY EXPRESS OR
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* IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED
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* WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE
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* DISCLAIMED. IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR ANY DIRECT,
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* INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES
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* (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR
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* SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
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* HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT,
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* STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN
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* ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE
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* POSSIBILITY OF SUCH DAMAGE.
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*/
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#include <sys/cdefs.h>
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__KERNEL_RCSID(0, "$NetBSD: com_mv.c,v 1.12 2019/01/27 02:08:42 pgoyette Exp $");
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#include <sys/param.h>
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#include <sys/bus.h>
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#include <sys/device.h>
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#include <sys/errno.h>
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#include <sys/termios.h>
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#include <dev/marvell/gtvar.h>
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#include <dev/marvell/marvellreg.h>
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#include <dev/marvell/marvellvar.h>
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#include <dev/ic/comvar.h>
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#include <prop/proplib.h>
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#define MVUART_SIZE 0x20
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static int mvuart_match(device_t, struct cfdata *, void *);
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static void mvuart_attach(device_t, device_t, void *);
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CFATTACH_DECL_NEW(mvuart_gt, sizeof(struct com_softc),
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mvuart_match, mvuart_attach, NULL, NULL);
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CFATTACH_DECL_NEW(mvuart_mbus, sizeof(struct com_softc),
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mvuart_match, mvuart_attach, NULL, NULL);
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static void
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mvuart_init_regs(struct com_regs *regs, bus_space_tag_t tag,
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bus_space_handle_t hdl, bus_addr_t addr)
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{
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com_init_regs_stride(regs, tag, hdl, addr, 2);
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}
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/* ARGSUSED */
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static int
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mvuart_match(device_t parent, struct cfdata *match, void *aux)
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{
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struct marvell_attach_args *mva = aux;
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struct com_regs regs;
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bus_space_handle_t ioh;
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if (strcmp(mva->mva_name, match->cf_name) != 0)
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return 0;
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if (mva->mva_offset == MVA_OFFSET_DEFAULT ||
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mva->mva_irq == MVA_IRQ_DEFAULT)
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return 0;
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if (com_is_console(mva->mva_iot, mva->mva_addr + mva->mva_offset, NULL))
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goto console;
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if (bus_space_subregion(mva->mva_iot, mva->mva_ioh, mva->mva_offset,
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MVUART_SIZE, &ioh))
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return 0;
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mvuart_init_regs(®s, mva->mva_iot, ioh, mva->mva_offset);
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if (!com_probe_subr(®s))
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return 0;
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console:
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mva->mva_size = MVUART_SIZE;
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return 1;
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}
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/* ARGSUSED */
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static void
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mvuart_attach(device_t parent, device_t self, void *aux)
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{
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struct com_softc *sc = device_private(self);
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struct marvell_attach_args *mva = aux;
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bus_space_tag_t iot;
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bus_space_handle_t ioh;
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prop_dictionary_t dict = device_properties(self);
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sc->sc_dev = self;
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if (!prop_dictionary_get_uint32(dict, "frequency", &sc->sc_frequency)) {
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aprint_error(": no frequency property\n");
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return;
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}
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iot = mva->mva_iot;
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if (!com_is_console(iot, mva->mva_addr + mva->mva_offset, &ioh)) {
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if (bus_space_subregion(iot, mva->mva_ioh, mva->mva_offset,
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mva->mva_size, &ioh)) {
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aprint_error(": can't map registers\n");
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return;
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}
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}
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mvuart_init_regs(&sc->sc_regs,
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iot, ioh, mva->mva_addr + mva->mva_offset);
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com_attach_subr(sc);
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marvell_intr_establish(mva->mva_irq, IPL_SERIAL, comintr, sc);
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}
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int mvuart_cnattach(bus_space_tag_t, bus_addr_t, int, uint32_t, int);
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int
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mvuart_cnattach(bus_space_tag_t iot, bus_addr_t addr, int baud,
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uint32_t sysfreq, int mode)
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{
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struct com_regs regs;
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mvuart_init_regs(®s, iot, 0x0, addr);
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return comcnattach1(®s, baud, sysfreq, COM_TYPE_16550_NOERS, mode);
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}
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