1.1 --- /dev/null Thu Jan 01 00:00:00 1970 +0000
1.2 +++ b/pkg/devices/lib/gpio/src/generic.cc Tue Apr 30 01:32:10 2024 +0200
1.3 @@ -0,0 +1,57 @@
1.4 +/*
1.5 + * Generic access to general purpose input/output functionality.
1.6 + *
1.7 + * Copyright (C) 2024 Paul Boddie <paul@boddie.org.uk>
1.8 + *
1.9 + * This program is free software; you can redistribute it and/or
1.10 + * modify it under the terms of the GNU General Public License as
1.11 + * published by the Free Software Foundation; either version 2 of
1.12 + * the License, or (at your option) any later version.
1.13 + *
1.14 + * This program is distributed in the hope that it will be useful,
1.15 + * but WITHOUT ANY WARRANTY; without even the implied warranty of
1.16 + * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
1.17 + * GNU General Public License for more details.
1.18 + *
1.19 + * You should have received a copy of the GNU General Public License
1.20 + * along with this program; if not, write to the Free Software
1.21 + * Foundation, Inc., 51 Franklin Street, Fifth Floor,
1.22 + * Boston, MA 02110-1301, USA
1.23 + */
1.24 +
1.25 +#include <string.h>
1.26 +#include "gpio-generic.h"
1.27 +
1.28 +/* Function declarations reproduced here to avoid clock identifier conflicts in
1.29 + the chip-specific headers. */
1.30 +
1.31 +extern Hw::Gpio_chip *jz4730_gpio_chip(l4_addr_t, uint8_t, bool);
1.32 +extern Hw::Gpio_chip *jz4740_gpio_chip(l4_addr_t, uint8_t, bool);
1.33 +extern Hw::Gpio_chip *jz4780_gpio_chip(l4_addr_t, uint8_t, bool);
1.34 +extern Hw::Gpio_chip *x1600_gpio_chip(l4_addr_t, uint8_t, bool);
1.35 +
1.36 +struct gpio_function
1.37 +{
1.38 + const char *name;
1.39 + Hw::Gpio_chip *(*function)(l4_addr_t, uint8_t, bool);
1.40 +};
1.41 +
1.42 +static struct gpio_function functions[] = {
1.43 + {"jz4730", jz4730_gpio_chip},
1.44 + {"jz4740", jz4740_gpio_chip},
1.45 + {"jz4780", jz4780_gpio_chip},
1.46 + {"x1600", x1600_gpio_chip},
1.47 + {NULL, NULL}
1.48 +};
1.49 +
1.50 +Hw::Gpio_chip *new_gpio_chip(const char *name, l4_addr_t gpio_base,
1.51 + uint8_t port_number, bool shadow)
1.52 +{
1.53 + for (struct gpio_function *f = functions; f->name != NULL; f++)
1.54 + {
1.55 + if (!strcmp(name, f->name))
1.56 + return f->function(gpio_base, port_number, shadow);
1.57 + }
1.58 +
1.59 + return NULL;
1.60 +}