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/* $NetBSD: zz9k.c,v 1.1 2023/05/03 13:49:30 phx Exp $ */
/*
* Copyright (c) 2020 The NetBSD Foundation, Inc.
* All rights reserved.
*
* This code is derived from software contributed to The NetBSD Foundation
* by Alain Runa.
*
* 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/cdefs.h>
__KERNEL_RCSID(0, "$NetBSD: zz9k.c,v 1.1 2023/05/03 13:49:30 phx Exp $");
/* miscellaneous */
#include <sys/types.h> /* size_t */
#include <sys/stdint.h> /* uintXX_t */
#include <sys/stdbool.h> /* bool */
/* driver(9) includes */
#include <sys/param.h> /* NODEV */
#include <sys/device.h> /* CFATTACH_DECL_NEW(), device_priv() */
#include <sys/errno.h> /* . */
/* bus_space(9) and zorro bus includes */
#include <sys/bus.h> /* bus_space_xxx(), bus_space_xxx */
#include <sys/cpu.h> /* kvtop() */
#include <sys/systm.h> /* aprint_xxx() */
#include <amiga/dev/zbusvar.h> /* zbus_args */
/* zz9k and amiga related */
#include <amiga/amiga/device.h> /* amiga_realconfig */
#include <amiga/dev/zz9kvar.h> /* zz9k_softc */
#include <amiga/dev/zz9kreg.h> /* ZZ9000 registers */
#include "zz9k.h" /* NZZ9K */
/* helper functions */
static int zz9k_print(void *aux, const char *pnp);
/* driver(9) essentials */
static int zz9k_match(device_t parent, cfdata_t match, void *aux);
static void zz9k_attach(device_t parent, device_t self, void *aux);
CFATTACH_DECL_NEW(
zz9k, sizeof(struct zz9k_softc), zz9k_match, zz9k_attach, NULL, NULL);
bool zz9k_exists = false; /* required by zz9k_fb ZZFB_CONSOLE */
/* It's the year 2020. And so it begins... */
static int
zz9k_match(device_t parent, cfdata_t match, void *aux)
{
struct zbus_args *zap = aux;
bool found = false;
if (zap->manid == ZZ9K_MANID) {
switch (zap->prodid) {
case ZZ9K_PRODID_Z2:
case ZZ9K_PRODID_Z3:
found = true;
break;
}
}
if (amiga_realconfig == 0) { /* pre-config, just flag if zz9k exists. */
zz9k_exists = found;
return 0; /* 0, as we don't need zz9k_attach() this round. */
}
return found;
}
static void
zz9k_attach(device_t parent, device_t self, void *aux)
{
struct zbus_args *zap = aux;
struct zz9k_softc *sc = device_private(self);
struct zz9kbus_attach_args zz9k_fb; /* Graphics */
struct zz9kbus_attach_args zz9k_if; /* Ethernet */
struct zz9kbus_attach_args zz9k_ax; /* Audio */
struct zz9kbus_attach_args zz9k_usb; /* USB */
const bus_addr_t regBase = ZZ9K_REG_BASE;
const bus_size_t regSize = ZZ9K_REG_SIZE;
sc->sc_dev = self;
sc->sc_bst.base = (bus_addr_t)zap->va;
sc->sc_bst.absm = &amiga_bus_stride_1;
sc->sc_iot = &sc->sc_bst;
sc->sc_zsize = zap->size;
if (bus_space_map(sc->sc_iot, regBase, regSize, 0, &sc->sc_regh)) {
aprint_error("Failed to map MNT ZZ9000 registers.\n");
return;
}
uint16_t hwVer = ZZREG_R(ZZ9K_HW_VERSION);
uint16_t fwVer = ZZREG_R(ZZ9K_FW_VERSION);
aprint_normal(": MNT ZZ9000 Zorro %s (HW: %i.%i, FW: %i.%i)\n",
(zap->prodid == ZZ9K_PRODID_Z3) ? "III" : "II",
hwVer >> 8, hwVer & 0x00ff, fwVer >> 8, fwVer & 0x00ff);
if (fwVer < ZZ9K_FW_VER_MIN) {
aprint_error("Firmware version is not supported. "
"Please update to newer firmware from:\n");
aprint_error(
"https://source.mnt.re/amiga/zz9000-firmware/-/releases\n");
return;
}
uint16_t tcore = ZZREG_R(ZZ9K_TEMPERATURE);
uint16_t vcore = ZZREG_R(ZZ9K_VOLTAGE_CORE);
uint16_t vaux = ZZREG_R(ZZ9K_VOLTAGE_AUX);
aprint_normal_dev(sc->sc_dev, "Hardware status "
"<Tcore: %i.%i C, Vcore: %i.%i V, Vaux: %i.%i V>\n",
tcore/10, tcore%10, vcore/100, vcore%100, vaux/100, vaux%100);
aprint_debug_dev(sc->sc_dev, "[DEBUG] registers at %p/%p (pa/va), "
"MNT ZZ9000 is mapped with %i MB in Zorro %s space.\n",
(void *)kvtop((void *)sc->sc_regh),
bus_space_vaddr(sc->sc_iot, sc->sc_regh),
zap->size / (1024 * 1024),
(zap->prodid == ZZ9K_PRODID_Z3) ? "III" : "II");
if (fwVer > ZZ9K_FW_VER) {
aprint_normal_dev(sc->sc_dev, "The firmware is newer than "
"%i.%i and may not be supported yet.\n",
ZZ9K_FW_VER >> 8, ZZ9K_FW_VER & 0x00ff);
}
/* Add framebuffer */
zz9k_fb.zzaa_base = (bus_addr_t)zap->va;
strcpy(zz9k_fb.zzaa_name, "zz9k_fb");
config_found(sc->sc_dev, &zz9k_fb, zz9k_print, CFARGS_NONE);
/* Add zz* ethernet interface */
zz9k_if.zzaa_base = (bus_addr_t)zap->va;
strcpy(zz9k_if.zzaa_name, "zz9k_if");
config_found(sc->sc_dev, &zz9k_if, zz9k_print, CFARGS_NONE);
/* Add AX audio interface */
zz9k_ax.zzaa_base = (bus_addr_t)zap->va;
strcpy(zz9k_ax.zzaa_name, "zz9k_ax");
config_found(sc->sc_dev, &zz9k_ax, zz9k_print, CFARGS_NONE);
/* Add USB interface */
zz9k_usb.zzaa_base = (bus_addr_t)zap->va;
strcpy(zz9k_usb.zzaa_name, "zz9k_usb");
config_found(sc->sc_dev, &zz9k_usb, zz9k_print, CFARGS_NONE);
}
static int
zz9k_print(void *aux, const char *pnp)
{
return 0;
}
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