6489412064
really need it. That would be almost everywhere it was included. Add it in a couple files that really do need it and were previously getting it by accident via another header.
713 lines
16 KiB
C
713 lines
16 KiB
C
/*
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* Copyright (c) 2012 Oleksandr Tymoshenko <gonzo@freebsd.org>
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* All rights reserved.
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*
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* Based on dev/usb/input/ukbd.c
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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 AND CONTRIBUTORS ``AS IS'' AND
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* ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
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* IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
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* ARE DISCLAIMED. IN NO EVENT SHALL THE AUTHOR OR CONTRIBUTORS BE LIABLE
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* FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
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* DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
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* OR 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, STRICT
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* LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
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* OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
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* SUCH DAMAGE.
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*/
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#include <sys/cdefs.h>
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__FBSDID("$FreeBSD$");
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#include <sys/param.h>
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#include <sys/systm.h>
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#include <sys/bus.h>
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#include <sys/kernel.h>
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#include <sys/module.h>
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#include <sys/malloc.h>
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#include <sys/rman.h>
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#include <sys/proc.h>
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#include <sys/sched.h>
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#include <sys/kdb.h>
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#include <machine/bus.h>
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#include <machine/cpu.h>
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#include <machine/intr.h>
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#include <dev/fdt/fdt_common.h>
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#include <dev/ofw/openfirm.h>
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#include <dev/ofw/ofw_bus.h>
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#include <dev/ofw/ofw_bus_subr.h>
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#include <sys/ioccom.h>
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#include <sys/filio.h>
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#include <sys/tty.h>
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#include <sys/kbio.h>
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#include <dev/kbd/kbdreg.h>
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#include <machine/bus.h>
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#include <machine/fdt.h>
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#include <dev/kbd/kbdtables.h>
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#define KMI_LOCK() mtx_lock(&Giant)
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#define KMI_UNLOCK() mtx_unlock(&Giant)
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#ifdef INVARIANTS
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/*
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* Assert that the lock is held in all contexts
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* where the code can be executed.
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*/
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#define KMI_LOCK_ASSERT() mtx_assert(&Giant, MA_OWNED)
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/*
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* Assert that the lock is held in the contexts
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* where it really has to be so.
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*/
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#define KMI_CTX_LOCK_ASSERT() \
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do { \
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if (!kdb_active && panicstr == NULL) \
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mtx_assert(&Giant, MA_OWNED); \
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} while (0)
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#else
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#define KMI_LOCK_ASSERT() (void)0
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#define KMI_CTX_LOCK_ASSERT() (void)0
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#endif
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#define KMICR 0x00
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#define KMICR_TYPE_NONPS2 (1 << 5)
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#define KMICR_RXINTREN (1 << 4)
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#define KMICR_TXINTREN (1 << 3)
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#define KMICR_EN (1 << 2)
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#define KMICR_FKMID (1 << 1)
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#define KMICR_FKMIC (1 << 0)
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#define KMISTAT 0x04
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#define KMISTAT_TXEMPTY (1 << 6)
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#define KMISTAT_TXBUSY (1 << 5)
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#define KMISTAT_RXFULL (1 << 4)
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#define KMISTAT_RXBUSY (1 << 3)
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#define KMISTAT_RXPARITY (1 << 2)
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#define KMISTAT_KMIC (1 << 1)
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#define KMISTAT_KMID (1 << 0)
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#define KMIDATA 0x08
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#define KMICLKDIV 0x0C
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#define KMIIR 0x10
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#define KMIIR_TXINTR (1 << 1)
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#define KMIIR_RXINTR (1 << 0)
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#define KMI_DRIVER_NAME "kmi"
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#define KMI_NFKEY (sizeof(fkey_tab)/sizeof(fkey_tab[0])) /* units */
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struct kmi_softc {
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keyboard_t sc_kbd;
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keymap_t sc_keymap;
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accentmap_t sc_accmap;
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fkeytab_t sc_fkeymap[KMI_NFKEY];
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struct resource* sc_mem_res;
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struct resource* sc_irq_res;
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void* sc_intr_hl;
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int sc_mode; /* input mode (K_XLATE,K_RAW,K_CODE) */
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int sc_state; /* shift/lock key state */
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int sc_accents; /* accent key index (> 0) */
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uint32_t sc_flags; /* flags */
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#define KMI_FLAG_COMPOSE 0x00000001
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#define KMI_FLAG_POLLING 0x00000002
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struct thread *sc_poll_thread;
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};
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/* Read/Write macros for Timer used as timecounter */
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#define pl050_kmi_read_4(sc, reg) \
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bus_read_4((sc)->sc_mem_res, (reg))
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#define pl050_kmi_write_4(sc, reg, val) \
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bus_write_4((sc)->sc_mem_res, (reg), (val))
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/* prototypes */
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static void kmi_set_leds(struct kmi_softc *, uint8_t);
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static int kmi_set_typematic(keyboard_t *, int);
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static uint32_t kmi_read_char(keyboard_t *, int);
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static void kmi_clear_state(keyboard_t *);
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static int kmi_ioctl(keyboard_t *, u_long, caddr_t);
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static int kmi_enable(keyboard_t *);
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static int kmi_disable(keyboard_t *);
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/* early keyboard probe, not supported */
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static int
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kmi_configure(int flags)
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{
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return (0);
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}
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/* detect a keyboard, not used */
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static int
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kmi_probe(int unit, void *arg, int flags)
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{
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return (ENXIO);
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}
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/* reset and initialize the device, not used */
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static int
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kmi_init(int unit, keyboard_t **kbdp, void *arg, int flags)
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{
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return (ENXIO);
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}
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/* test the interface to the device, not used */
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static int
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kmi_test_if(keyboard_t *kbd)
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{
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return (0);
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}
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/* finish using this keyboard, not used */
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static int
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kmi_term(keyboard_t *kbd)
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{
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return (ENXIO);
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}
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/* keyboard interrupt routine, not used */
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static int
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kmi_intr(keyboard_t *kbd, void *arg)
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{
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return (0);
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}
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/* lock the access to the keyboard, not used */
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static int
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kmi_lock(keyboard_t *kbd, int lock)
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{
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return (1);
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}
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/*
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* Enable the access to the device; until this function is called,
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* the client cannot read from the keyboard.
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*/
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static int
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kmi_enable(keyboard_t *kbd)
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{
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KMI_LOCK();
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KBD_ACTIVATE(kbd);
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KMI_UNLOCK();
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return (0);
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}
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/* disallow the access to the device */
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static int
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kmi_disable(keyboard_t *kbd)
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{
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KMI_LOCK();
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KBD_DEACTIVATE(kbd);
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KMI_UNLOCK();
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return (0);
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}
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/* check if data is waiting */
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static int
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kmi_check(keyboard_t *kbd)
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{
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struct kmi_softc *sc = kbd->kb_data;
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uint32_t reg;
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KMI_CTX_LOCK_ASSERT();
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if (!KBD_IS_ACTIVE(kbd))
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return (0);
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reg = pl050_kmi_read_4(sc, KMIIR);
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return (reg & KMIIR_RXINTR);
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}
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/* check if char is waiting */
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static int
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kmi_check_char_locked(keyboard_t *kbd)
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{
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KMI_CTX_LOCK_ASSERT();
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if (!KBD_IS_ACTIVE(kbd))
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return (0);
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return (kmi_check(kbd));
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}
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static int
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kmi_check_char(keyboard_t *kbd)
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{
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int result;
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KMI_LOCK();
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result = kmi_check_char_locked(kbd);
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KMI_UNLOCK();
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return (result);
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}
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/* read one byte from the keyboard if it's allowed */
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/* Currently unused. */
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static int
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kmi_read(keyboard_t *kbd, int wait)
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{
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KMI_CTX_LOCK_ASSERT();
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if (!KBD_IS_ACTIVE(kbd))
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return (-1);
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++(kbd->kb_count);
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printf("Implement ME: %s\n", __func__);
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return (0);
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}
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/* read char from the keyboard */
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static uint32_t
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kmi_read_char_locked(keyboard_t *kbd, int wait)
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{
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struct kmi_softc *sc = kbd->kb_data;
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uint32_t reg, data;
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KMI_CTX_LOCK_ASSERT();
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if (!KBD_IS_ACTIVE(kbd))
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return (NOKEY);
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reg = pl050_kmi_read_4(sc, KMIIR);
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if (reg & KMIIR_RXINTR) {
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data = pl050_kmi_read_4(sc, KMIDATA);
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return (data);
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}
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++kbd->kb_count;
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return (NOKEY);
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}
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/* Currently wait is always false. */
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static uint32_t
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kmi_read_char(keyboard_t *kbd, int wait)
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{
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uint32_t keycode;
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KMI_LOCK();
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keycode = kmi_read_char_locked(kbd, wait);
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KMI_UNLOCK();
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return (keycode);
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}
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/* some useful control functions */
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static int
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kmi_ioctl_locked(keyboard_t *kbd, u_long cmd, caddr_t arg)
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{
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struct kmi_softc *sc = kbd->kb_data;
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int i;
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#if defined(COMPAT_FREEBSD6) || defined(COMPAT_FREEBSD5) || \
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defined(COMPAT_FREEBSD4) || defined(COMPAT_43)
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int ival;
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#endif
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KMI_LOCK_ASSERT();
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switch (cmd) {
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case KDGKBMODE: /* get keyboard mode */
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*(int *)arg = sc->sc_mode;
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break;
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#if defined(COMPAT_FREEBSD6) || defined(COMPAT_FREEBSD5) || \
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defined(COMPAT_FREEBSD4) || defined(COMPAT_43)
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case _IO('K', 7):
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ival = IOCPARM_IVAL(arg);
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arg = (caddr_t)&ival;
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/* FALLTHROUGH */
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#endif
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case KDSKBMODE: /* set keyboard mode */
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switch (*(int *)arg) {
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case K_XLATE:
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if (sc->sc_mode != K_XLATE) {
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/* make lock key state and LED state match */
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sc->sc_state &= ~LOCK_MASK;
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sc->sc_state |= KBD_LED_VAL(kbd);
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}
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/* FALLTHROUGH */
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case K_RAW:
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case K_CODE:
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if (sc->sc_mode != *(int *)arg) {
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if ((sc->sc_flags & KMI_FLAG_POLLING) == 0)
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kmi_clear_state(kbd);
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sc->sc_mode = *(int *)arg;
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}
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break;
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default:
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return (EINVAL);
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}
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break;
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case KDGETLED: /* get keyboard LED */
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*(int *)arg = KBD_LED_VAL(kbd);
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break;
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#if defined(COMPAT_FREEBSD6) || defined(COMPAT_FREEBSD5) || \
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defined(COMPAT_FREEBSD4) || defined(COMPAT_43)
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case _IO('K', 66):
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ival = IOCPARM_IVAL(arg);
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arg = (caddr_t)&ival;
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/* FALLTHROUGH */
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#endif
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case KDSETLED: /* set keyboard LED */
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/* NOTE: lock key state in "sc_state" won't be changed */
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if (*(int *)arg & ~LOCK_MASK)
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return (EINVAL);
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i = *(int *)arg;
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/* replace CAPS LED with ALTGR LED for ALTGR keyboards */
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if (sc->sc_mode == K_XLATE &&
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kbd->kb_keymap->n_keys > ALTGR_OFFSET) {
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if (i & ALKED)
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i |= CLKED;
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else
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i &= ~CLKED;
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}
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if (KBD_HAS_DEVICE(kbd))
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kmi_set_leds(sc, i);
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KBD_LED_VAL(kbd) = *(int *)arg;
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break;
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case KDGKBSTATE: /* get lock key state */
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*(int *)arg = sc->sc_state & LOCK_MASK;
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break;
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#if defined(COMPAT_FREEBSD6) || defined(COMPAT_FREEBSD5) || \
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defined(COMPAT_FREEBSD4) || defined(COMPAT_43)
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case _IO('K', 20):
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ival = IOCPARM_IVAL(arg);
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arg = (caddr_t)&ival;
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/* FALLTHROUGH */
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#endif
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case KDSKBSTATE: /* set lock key state */
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if (*(int *)arg & ~LOCK_MASK) {
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return (EINVAL);
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}
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sc->sc_state &= ~LOCK_MASK;
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sc->sc_state |= *(int *)arg;
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/* set LEDs and quit */
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return (kmi_ioctl(kbd, KDSETLED, arg));
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case KDSETREPEAT: /* set keyboard repeat rate (new
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* interface) */
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if (!KBD_HAS_DEVICE(kbd)) {
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return (0);
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}
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if (((int *)arg)[1] < 0) {
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return (EINVAL);
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}
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if (((int *)arg)[0] < 0) {
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return (EINVAL);
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}
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if (((int *)arg)[0] < 200) /* fastest possible value */
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kbd->kb_delay1 = 200;
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else
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kbd->kb_delay1 = ((int *)arg)[0];
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kbd->kb_delay2 = ((int *)arg)[1];
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return (0);
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#if defined(COMPAT_FREEBSD6) || defined(COMPAT_FREEBSD5) || \
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defined(COMPAT_FREEBSD4) || defined(COMPAT_43)
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case _IO('K', 67):
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ival = IOCPARM_IVAL(arg);
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arg = (caddr_t)&ival;
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/* FALLTHROUGH */
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#endif
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case KDSETRAD: /* set keyboard repeat rate (old
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* interface) */
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return (kmi_set_typematic(kbd, *(int *)arg));
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case PIO_KEYMAP: /* set keyboard translation table */
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case OPIO_KEYMAP: /* set keyboard translation table
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* (compat) */
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case PIO_KEYMAPENT: /* set keyboard translation table
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* entry */
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case PIO_DEADKEYMAP: /* set accent key translation table */
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sc->sc_accents = 0;
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/* FALLTHROUGH */
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default:
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return (genkbd_commonioctl(kbd, cmd, arg));
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}
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return (0);
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}
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static int
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kmi_ioctl(keyboard_t *kbd, u_long cmd, caddr_t arg)
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{
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int result;
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/*
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* XXX KDGKBSTATE, KDSKBSTATE and KDSETLED can be called from any
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* context where printf(9) can be called, which among other things
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* includes interrupt filters and threads with any kinds of locks
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* already held. For this reason it would be dangerous to acquire
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* the Giant here unconditionally. On the other hand we have to
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* have it to handle the ioctl.
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* So we make our best effort to auto-detect whether we can grab
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* the Giant or not. Blame syscons(4) for this.
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*/
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switch (cmd) {
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case KDGKBSTATE:
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case KDSKBSTATE:
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case KDSETLED:
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if (!mtx_owned(&Giant) && !SCHEDULER_STOPPED())
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return (EDEADLK); /* best I could come up with */
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/* FALLTHROUGH */
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default:
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KMI_LOCK();
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result = kmi_ioctl_locked(kbd, cmd, arg);
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KMI_UNLOCK();
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return (result);
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}
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}
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/* clear the internal state of the keyboard */
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static void
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kmi_clear_state(keyboard_t *kbd)
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{
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struct kmi_softc *sc = kbd->kb_data;
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KMI_CTX_LOCK_ASSERT();
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sc->sc_flags &= ~(KMI_FLAG_COMPOSE | KMI_FLAG_POLLING);
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sc->sc_state &= LOCK_MASK; /* preserve locking key state */
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sc->sc_accents = 0;
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}
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/* save the internal state, not used */
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static int
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kmi_get_state(keyboard_t *kbd, void *buf, size_t len)
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{
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return (len == 0) ? 1 : -1;
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}
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/* set the internal state, not used */
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static int
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kmi_set_state(keyboard_t *kbd, void *buf, size_t len)
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{
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return (EINVAL);
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}
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static int
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kmi_poll(keyboard_t *kbd, int on)
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{
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struct kmi_softc *sc = kbd->kb_data;
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KMI_LOCK();
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if (on) {
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sc->sc_flags |= KMI_FLAG_POLLING;
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sc->sc_poll_thread = curthread;
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} else {
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sc->sc_flags &= ~KMI_FLAG_POLLING;
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}
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KMI_UNLOCK();
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return (0);
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}
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|
|
|
/* local functions */
|
|
|
|
static void
|
|
kmi_set_leds(struct kmi_softc *sc, uint8_t leds)
|
|
{
|
|
|
|
KMI_LOCK_ASSERT();
|
|
|
|
/* start transfer, if not already started */
|
|
printf("Implement me: %s\n", __func__);
|
|
}
|
|
|
|
static int
|
|
kmi_set_typematic(keyboard_t *kbd, int code)
|
|
{
|
|
static const int delays[] = {250, 500, 750, 1000};
|
|
static const int rates[] = {34, 38, 42, 46, 50, 55, 59, 63,
|
|
68, 76, 84, 92, 100, 110, 118, 126,
|
|
136, 152, 168, 184, 200, 220, 236, 252,
|
|
272, 304, 336, 368, 400, 440, 472, 504};
|
|
|
|
if (code & ~0x7f) {
|
|
return (EINVAL);
|
|
}
|
|
kbd->kb_delay1 = delays[(code >> 5) & 3];
|
|
kbd->kb_delay2 = rates[code & 0x1f];
|
|
return (0);
|
|
}
|
|
|
|
static keyboard_switch_t kmisw = {
|
|
.probe = &kmi_probe,
|
|
.init = &kmi_init,
|
|
.term = &kmi_term,
|
|
.intr = &kmi_intr,
|
|
.test_if = &kmi_test_if,
|
|
.enable = &kmi_enable,
|
|
.disable = &kmi_disable,
|
|
.read = &kmi_read,
|
|
.check = &kmi_check,
|
|
.read_char = &kmi_read_char,
|
|
.check_char = &kmi_check_char,
|
|
.ioctl = &kmi_ioctl,
|
|
.lock = &kmi_lock,
|
|
.clear_state = &kmi_clear_state,
|
|
.get_state = &kmi_get_state,
|
|
.set_state = &kmi_set_state,
|
|
.get_fkeystr = &genkbd_get_fkeystr,
|
|
.poll = &kmi_poll,
|
|
.diag = &genkbd_diag,
|
|
};
|
|
|
|
KEYBOARD_DRIVER(kmi, kmisw, kmi_configure);
|
|
|
|
static void
|
|
pl050_kmi_intr(void *arg)
|
|
{
|
|
struct kmi_softc *sc = arg;
|
|
uint32_t c;
|
|
|
|
KMI_CTX_LOCK_ASSERT();
|
|
|
|
if ((sc->sc_flags & KMI_FLAG_POLLING) != 0)
|
|
return;
|
|
|
|
if (KBD_IS_ACTIVE(&sc->sc_kbd) &&
|
|
KBD_IS_BUSY(&sc->sc_kbd)) {
|
|
/* let the callback function process the input */
|
|
(sc->sc_kbd.kb_callback.kc_func) (&sc->sc_kbd, KBDIO_KEYINPUT,
|
|
sc->sc_kbd.kb_callback.kc_arg);
|
|
} else {
|
|
/* read and discard the input, no one is waiting for it */
|
|
do {
|
|
c = kmi_read_char_locked(&sc->sc_kbd, 0);
|
|
} while (c != NOKEY);
|
|
}
|
|
|
|
}
|
|
|
|
static int
|
|
pl050_kmi_probe(device_t dev)
|
|
{
|
|
|
|
if (ofw_bus_is_compatible(dev, "arm,pl050")) {
|
|
device_set_desc(dev, "PL050 Keyboard/Mouse Interface");
|
|
return (BUS_PROBE_DEFAULT);
|
|
}
|
|
|
|
return (ENXIO);
|
|
}
|
|
|
|
static int
|
|
pl050_kmi_attach(device_t dev)
|
|
{
|
|
struct kmi_softc *sc = device_get_softc(dev);
|
|
keyboard_t *kbd;
|
|
int rid;
|
|
int i;
|
|
|
|
kbd = &sc->sc_kbd;
|
|
rid = 0;
|
|
|
|
sc->sc_mem_res = bus_alloc_resource_any(dev, SYS_RES_MEMORY, &rid, RF_ACTIVE);
|
|
if (sc->sc_mem_res == NULL) {
|
|
device_printf(dev, "could not allocate memory resource\n");
|
|
return (ENXIO);
|
|
}
|
|
|
|
/* Request the IRQ resources */
|
|
sc->sc_irq_res = bus_alloc_resource_any(dev, SYS_RES_IRQ, &rid, RF_ACTIVE);
|
|
if (sc->sc_irq_res == NULL) {
|
|
device_printf(dev, "Error: could not allocate irq resources\n");
|
|
return (ENXIO);
|
|
}
|
|
|
|
/* Setup and enable the timer */
|
|
if (bus_setup_intr(dev, sc->sc_irq_res, INTR_TYPE_CLK,
|
|
NULL, pl050_kmi_intr, sc,
|
|
&sc->sc_intr_hl) != 0) {
|
|
bus_release_resource(dev, SYS_RES_IRQ, rid,
|
|
sc->sc_irq_res);
|
|
device_printf(dev, "Unable to setup the clock irq handler.\n");
|
|
return (ENXIO);
|
|
}
|
|
|
|
/* TODO: clock & divisor */
|
|
|
|
pl050_kmi_write_4(sc, KMICR, KMICR_EN | KMICR_RXINTREN);
|
|
|
|
kbd_init_struct(kbd, KMI_DRIVER_NAME, KB_OTHER,
|
|
device_get_unit(dev), 0, 0, 0);
|
|
kbd->kb_data = (void *)sc;
|
|
|
|
sc->sc_keymap = key_map;
|
|
sc->sc_accmap = accent_map;
|
|
for (i = 0; i < KMI_NFKEY; i++) {
|
|
sc->sc_fkeymap[i] = fkey_tab[i];
|
|
}
|
|
|
|
kbd_set_maps(kbd, &sc->sc_keymap, &sc->sc_accmap,
|
|
sc->sc_fkeymap, KMI_NFKEY);
|
|
|
|
KBD_FOUND_DEVICE(kbd);
|
|
kmi_clear_state(kbd);
|
|
KBD_PROBE_DONE(kbd);
|
|
|
|
KBD_INIT_DONE(kbd);
|
|
|
|
if (kbd_register(kbd) < 0) {
|
|
goto detach;
|
|
}
|
|
KBD_CONFIG_DONE(kbd);
|
|
|
|
#ifdef KBD_INSTALL_CDEV
|
|
if (kbd_attach(kbd)) {
|
|
goto detach;
|
|
}
|
|
#endif
|
|
|
|
if (bootverbose) {
|
|
genkbd_diag(kbd, bootverbose);
|
|
}
|
|
return (0);
|
|
|
|
detach:
|
|
return (ENXIO);
|
|
|
|
}
|
|
|
|
static device_method_t pl050_kmi_methods[] = {
|
|
DEVMETHOD(device_probe, pl050_kmi_probe),
|
|
DEVMETHOD(device_attach, pl050_kmi_attach),
|
|
{ 0, 0 }
|
|
};
|
|
|
|
static driver_t pl050_kmi_driver = {
|
|
"kmi",
|
|
pl050_kmi_methods,
|
|
sizeof(struct kmi_softc),
|
|
};
|
|
|
|
static devclass_t pl050_kmi_devclass;
|
|
|
|
DRIVER_MODULE(pl050_kmi, simplebus, pl050_kmi_driver, pl050_kmi_devclass, 0, 0);
|