2014-03-30 15:22:36 +00:00
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/*-
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* Copyright (c) 2014 Ruslan Bukin <br@bsdpad.com>
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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 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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/*
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* Samsung Chromebook Keyboard
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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 <sys/timeet.h>
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#include <sys/timetc.h>
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#include <sys/mutex.h>
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#include <sys/gpio.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/kbio.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 "gpio_if.h"
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#include <arm/samsung/exynos/chrome_ec.h>
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#include <arm/samsung/exynos/chrome_kb.h>
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#include <arm/samsung/exynos/exynos5_combiner.h>
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#include <arm/samsung/exynos/exynos5_pad.h>
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#define CKB_LOCK() mtx_lock(&Giant)
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#define CKB_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 CKB_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 CKB_CTX_LOCK_ASSERT() \
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do { \
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2020-01-12 06:07:54 +00:00
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if (!kdb_active && !KERNEL_PANICKED()) \
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2014-03-30 15:22:36 +00:00
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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 CKB_LOCK_ASSERT() (void)0
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#define CKB_CTX_LOCK_ASSERT() (void)0
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#endif
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/*
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* Define a stub keyboard driver in case one hasn't been
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* compiled into the kernel
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*/
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#include <sys/kbio.h>
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#include <dev/kbd/kbdreg.h>
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#include <dev/kbd/kbdtables.h>
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#define CKB_NFKEY 12
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#define CKB_FLAG_COMPOSE 0x1
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#define CKB_FLAG_POLLING 0x2
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#define KBD_DRIVER_NAME "ckbd"
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struct ckb_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[CKB_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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int sc_flags; /* flags */
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struct callout sc_repeat_callout;
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int sc_repeat_key;
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int sc_repeating;
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int flag;
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int rows;
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int cols;
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2014-05-30 06:45:50 +00:00
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int gpio;
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2014-03-30 15:22:36 +00:00
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device_t dev;
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2014-05-28 06:15:45 +00:00
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device_t gpio_dev;
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2014-03-30 15:22:36 +00:00
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struct thread *sc_poll_thread;
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2014-05-30 06:45:50 +00:00
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uint16_t *keymap;
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2014-03-30 15:22:36 +00:00
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uint8_t *scan_local;
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uint8_t *scan;
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};
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/* prototypes */
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static int ckb_set_typematic(keyboard_t *, int);
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static uint32_t ckb_read_char(keyboard_t *, int);
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static void ckb_clear_state(keyboard_t *);
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static int ckb_ioctl(keyboard_t *, u_long, caddr_t);
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static int ckb_enable(keyboard_t *);
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static int ckb_disable(keyboard_t *);
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static void
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ckb_repeat(void *arg)
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{
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struct ckb_softc *sc;
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sc = arg;
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if (KBD_IS_ACTIVE(&sc->sc_kbd) && KBD_IS_BUSY(&sc->sc_kbd)) {
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if (sc->sc_repeat_key != -1) {
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sc->sc_repeating = 1;
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sc->sc_kbd.kb_callback.kc_func(&sc->sc_kbd,
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KBDIO_KEYINPUT, sc->sc_kbd.kb_callback.kc_arg);
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}
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}
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}
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/* detect a keyboard, not used */
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static int
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ckb__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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ckb_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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ckb_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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ckb_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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ckb_intr(keyboard_t *kbd, void *arg)
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{
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2014-05-30 06:45:50 +00:00
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return (0);
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2014-03-30 15:22:36 +00:00
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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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ckb_lock(keyboard_t *kbd, int lock)
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{
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2014-05-30 06:45:50 +00:00
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return (1);
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2014-03-30 15:22:36 +00:00
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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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ckb_clear_state(keyboard_t *kbd)
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{
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struct ckb_softc *sc;
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sc = kbd->kb_data;
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CKB_CTX_LOCK_ASSERT();
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sc->sc_flags &= ~(CKB_FLAG_COMPOSE | CKB_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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ckb_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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ckb_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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/* check if data is waiting */
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static int
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ckb_check(keyboard_t *kbd)
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{
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struct ckb_softc *sc;
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int i;
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sc = kbd->kb_data;
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CKB_CTX_LOCK_ASSERT();
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if (!KBD_IS_ACTIVE(kbd))
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return (0);
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if (sc->sc_flags & CKB_FLAG_POLLING) {
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return (1);
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2016-04-10 23:07:00 +00:00
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}
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2014-03-30 15:22:36 +00:00
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for (i = 0; i < sc->cols; i++)
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if (sc->scan_local[i] != sc->scan[i]) {
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return (1);
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2016-04-10 23:07:00 +00:00
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}
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2014-03-30 15:22:36 +00:00
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if (sc->sc_repeating)
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return (1);
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return (0);
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}
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/* check if char is waiting */
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static int
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ckb_check_char_locked(keyboard_t *kbd)
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{
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CKB_CTX_LOCK_ASSERT();
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if (!KBD_IS_ACTIVE(kbd))
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return (0);
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return (ckb_check(kbd));
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}
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static int
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ckb_check_char(keyboard_t *kbd)
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{
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int result;
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CKB_LOCK();
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result = ckb_check_char_locked(kbd);
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CKB_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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ckb_read(keyboard_t *kbd, int wait)
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{
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CKB_CTX_LOCK_ASSERT();
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if (!KBD_IS_ACTIVE(kbd))
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return (-1);
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printf("Implement ME: %s\n", __func__);
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return (0);
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}
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2014-05-30 06:45:50 +00:00
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static uint16_t
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keymap_read(struct ckb_softc *sc, int col, int row)
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2014-03-30 15:22:36 +00:00
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{
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2016-07-09 18:43:15 +00:00
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KASSERT(sc->keymap != NULL, ("keymap_read: no keymap"));
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2014-05-30 06:45:50 +00:00
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if (col >= 0 && col < sc->cols &&
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row >= 0 && row < sc->rows) {
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return sc->keymap[row * sc->cols + col];
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}
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2014-03-30 15:22:36 +00:00
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return (0);
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}
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2014-05-30 06:45:50 +00:00
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static int
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keymap_write(struct ckb_softc *sc, int col, int row, uint16_t key)
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{
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2016-07-09 18:43:15 +00:00
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KASSERT(sc->keymap != NULL, ("keymap_write: no keymap"));
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2014-05-30 06:45:50 +00:00
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if (col >= 0 && col < sc->cols &&
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row >= 0 && row < sc->rows) {
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sc->keymap[row * sc->cols + col] = key;
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return (0);
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}
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return (-1);
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}
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2014-03-30 15:22:36 +00:00
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/* read char from the keyboard */
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static uint32_t
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ckb_read_char_locked(keyboard_t *kbd, int wait)
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{
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struct ckb_softc *sc;
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int i,j;
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uint16_t key;
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int oldbit;
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int newbit;
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2014-05-28 06:15:45 +00:00
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int status;
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2014-03-30 15:22:36 +00:00
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sc = kbd->kb_data;
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CKB_CTX_LOCK_ASSERT();
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if (!KBD_IS_ACTIVE(kbd))
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return (NOKEY);
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if (sc->sc_repeating) {
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sc->sc_repeating = 0;
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callout_reset(&sc->sc_repeat_callout, hz / 10,
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ckb_repeat, sc);
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return (sc->sc_repeat_key);
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2016-04-10 23:07:00 +00:00
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}
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2014-03-30 15:22:36 +00:00
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if (sc->sc_flags & CKB_FLAG_POLLING) {
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2014-05-28 06:15:45 +00:00
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for (;;) {
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2014-05-30 06:45:50 +00:00
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GPIO_PIN_GET(sc->gpio_dev, sc->gpio, &status);
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2014-05-28 06:15:45 +00:00
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if (status == 0) {
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2014-05-30 06:45:50 +00:00
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if (ec_command(EC_CMD_MKBP_STATE, sc->scan,
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sc->cols,
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2014-05-28 06:15:45 +00:00
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sc->scan, sc->cols)) {
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return (NOKEY);
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}
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break;
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}
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if (!wait) {
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|
|
return (NOKEY);
|
|
|
|
}
|
|
|
|
DELAY(1000);
|
|
|
|
}
|
2016-04-10 23:07:00 +00:00
|
|
|
}
|
2014-03-30 15:22:36 +00:00
|
|
|
|
|
|
|
for (i = 0; i < sc->cols; i++) {
|
|
|
|
for (j = 0; j < sc->rows; j++) {
|
|
|
|
oldbit = (sc->scan_local[i] & (1 << j));
|
|
|
|
newbit = (sc->scan[i] & (1 << j));
|
|
|
|
|
|
|
|
if (oldbit == newbit)
|
|
|
|
continue;
|
|
|
|
|
2014-05-30 06:45:50 +00:00
|
|
|
key = keymap_read(sc, i, j);
|
2014-03-30 15:22:36 +00:00
|
|
|
if (key == 0) {
|
|
|
|
continue;
|
2016-04-10 23:07:00 +00:00
|
|
|
}
|
2014-03-30 15:22:36 +00:00
|
|
|
|
|
|
|
if (newbit > 0) {
|
|
|
|
/* key pressed */
|
|
|
|
sc->scan_local[i] |= (1 << j);
|
|
|
|
|
|
|
|
/* setup repeating */
|
|
|
|
sc->sc_repeat_key = key;
|
|
|
|
callout_reset(&sc->sc_repeat_callout,
|
|
|
|
hz / 2, ckb_repeat, sc);
|
|
|
|
|
|
|
|
} else {
|
|
|
|
/* key released */
|
|
|
|
sc->scan_local[i] &= ~(1 << j);
|
|
|
|
|
|
|
|
/* release flag */
|
|
|
|
key |= 0x80;
|
|
|
|
|
|
|
|
/* unsetup repeating */
|
|
|
|
sc->sc_repeat_key = -1;
|
|
|
|
callout_stop(&sc->sc_repeat_callout);
|
|
|
|
}
|
|
|
|
|
|
|
|
return (key);
|
|
|
|
}
|
|
|
|
}
|
|
|
|
|
|
|
|
return (NOKEY);
|
|
|
|
}
|
|
|
|
|
|
|
|
/* Currently wait is always false. */
|
|
|
|
static uint32_t
|
|
|
|
ckb_read_char(keyboard_t *kbd, int wait)
|
|
|
|
{
|
|
|
|
uint32_t keycode;
|
|
|
|
|
|
|
|
CKB_LOCK();
|
|
|
|
keycode = ckb_read_char_locked(kbd, wait);
|
|
|
|
CKB_UNLOCK();
|
|
|
|
|
|
|
|
return (keycode);
|
|
|
|
}
|
|
|
|
|
|
|
|
/* some useful control functions */
|
|
|
|
static int
|
|
|
|
ckb_ioctl_locked(keyboard_t *kbd, u_long cmd, caddr_t arg)
|
|
|
|
{
|
|
|
|
struct ckb_softc *sc;
|
|
|
|
int i;
|
|
|
|
|
|
|
|
sc = kbd->kb_data;
|
|
|
|
|
|
|
|
CKB_LOCK_ASSERT();
|
|
|
|
|
|
|
|
switch (cmd) {
|
|
|
|
case KDGKBMODE: /* get keyboard mode */
|
|
|
|
*(int *)arg = sc->sc_mode;
|
|
|
|
break;
|
|
|
|
|
|
|
|
case KDSKBMODE: /* set keyboard mode */
|
|
|
|
switch (*(int *)arg) {
|
|
|
|
case K_XLATE:
|
|
|
|
if (sc->sc_mode != K_XLATE) {
|
|
|
|
/* make lock key state and LED state match */
|
|
|
|
sc->sc_state &= ~LOCK_MASK;
|
|
|
|
sc->sc_state |= KBD_LED_VAL(kbd);
|
|
|
|
}
|
|
|
|
/* FALLTHROUGH */
|
|
|
|
case K_RAW:
|
|
|
|
case K_CODE:
|
|
|
|
if (sc->sc_mode != *(int *)arg) {
|
|
|
|
if ((sc->sc_flags & CKB_FLAG_POLLING) == 0)
|
|
|
|
ckb_clear_state(kbd);
|
|
|
|
sc->sc_mode = *(int *)arg;
|
|
|
|
}
|
|
|
|
break;
|
|
|
|
default:
|
|
|
|
return (EINVAL);
|
|
|
|
}
|
|
|
|
break;
|
|
|
|
|
|
|
|
case KDGETLED: /* get keyboard LED */
|
|
|
|
*(int *)arg = KBD_LED_VAL(kbd);
|
|
|
|
break;
|
|
|
|
|
|
|
|
case KDSETLED: /* set keyboard LED */
|
|
|
|
/* NOTE: lock key state in "sc_state" won't be changed */
|
|
|
|
if (*(int *)arg & ~LOCK_MASK)
|
|
|
|
return (EINVAL);
|
|
|
|
|
|
|
|
i = *(int *)arg;
|
|
|
|
|
|
|
|
/* replace CAPS LED with ALTGR LED for ALTGR keyboards */
|
|
|
|
if (sc->sc_mode == K_XLATE &&
|
|
|
|
kbd->kb_keymap->n_keys > ALTGR_OFFSET) {
|
|
|
|
if (i & ALKED)
|
|
|
|
i |= CLKED;
|
|
|
|
else
|
|
|
|
i &= ~CLKED;
|
|
|
|
}
|
|
|
|
if (KBD_HAS_DEVICE(kbd)) {
|
|
|
|
/* Configure LED */
|
|
|
|
}
|
|
|
|
|
|
|
|
KBD_LED_VAL(kbd) = *(int *)arg;
|
|
|
|
break;
|
|
|
|
case KDGKBSTATE: /* get lock key state */
|
|
|
|
*(int *)arg = sc->sc_state & LOCK_MASK;
|
|
|
|
break;
|
|
|
|
|
|
|
|
case KDSKBSTATE: /* set lock key state */
|
|
|
|
if (*(int *)arg & ~LOCK_MASK) {
|
|
|
|
return (EINVAL);
|
|
|
|
}
|
|
|
|
sc->sc_state &= ~LOCK_MASK;
|
|
|
|
sc->sc_state |= *(int *)arg;
|
|
|
|
|
|
|
|
/* set LEDs and quit */
|
|
|
|
return (ckb_ioctl(kbd, KDSETLED, arg));
|
|
|
|
|
|
|
|
case KDSETREPEAT: /* set keyboard repeat rate (new
|
|
|
|
* interface) */
|
|
|
|
|
|
|
|
if (!KBD_HAS_DEVICE(kbd)) {
|
|
|
|
return (0);
|
|
|
|
}
|
|
|
|
if (((int *)arg)[1] < 0) {
|
|
|
|
return (EINVAL);
|
|
|
|
}
|
|
|
|
if (((int *)arg)[0] < 0) {
|
|
|
|
return (EINVAL);
|
|
|
|
}
|
|
|
|
if (((int *)arg)[0] < 200) /* fastest possible value */
|
|
|
|
kbd->kb_delay1 = 200;
|
|
|
|
else
|
|
|
|
kbd->kb_delay1 = ((int *)arg)[0];
|
|
|
|
kbd->kb_delay2 = ((int *)arg)[1];
|
|
|
|
return (0);
|
|
|
|
|
|
|
|
case KDSETRAD: /* set keyboard repeat rate (old
|
|
|
|
* interface) */
|
|
|
|
return (ckb_set_typematic(kbd, *(int *)arg));
|
|
|
|
|
|
|
|
case PIO_KEYMAP: /* set keyboard translation table */
|
|
|
|
case OPIO_KEYMAP: /* set keyboard translation table
|
|
|
|
* (compat) */
|
|
|
|
case PIO_KEYMAPENT: /* set keyboard translation table
|
|
|
|
* entry */
|
|
|
|
case PIO_DEADKEYMAP: /* set accent key translation table */
|
|
|
|
sc->sc_accents = 0;
|
|
|
|
/* FALLTHROUGH */
|
|
|
|
default:
|
|
|
|
return (genkbd_commonioctl(kbd, cmd, arg));
|
|
|
|
}
|
|
|
|
|
|
|
|
return (0);
|
|
|
|
}
|
|
|
|
|
|
|
|
static int
|
|
|
|
ckb_ioctl(keyboard_t *kbd, u_long cmd, caddr_t arg)
|
|
|
|
{
|
|
|
|
int result;
|
|
|
|
|
|
|
|
/*
|
|
|
|
* XXX KDGKBSTATE, KDSKBSTATE and KDSETLED can be called from any
|
|
|
|
* context where printf(9) can be called, which among other things
|
|
|
|
* includes interrupt filters and threads with any kinds of locks
|
|
|
|
* already held. For this reason it would be dangerous to acquire
|
|
|
|
* the Giant here unconditionally. On the other hand we have to
|
|
|
|
* have it to handle the ioctl.
|
|
|
|
* So we make our best effort to auto-detect whether we can grab
|
|
|
|
* the Giant or not. Blame syscons(4) for this.
|
|
|
|
*/
|
|
|
|
switch (cmd) {
|
|
|
|
case KDGKBSTATE:
|
|
|
|
case KDSKBSTATE:
|
|
|
|
case KDSETLED:
|
|
|
|
if (!mtx_owned(&Giant) && !SCHEDULER_STOPPED())
|
|
|
|
return (EDEADLK); /* best I could come up with */
|
|
|
|
/* FALLTHROUGH */
|
|
|
|
default:
|
|
|
|
CKB_LOCK();
|
|
|
|
result = ckb_ioctl_locked(kbd, cmd, arg);
|
|
|
|
CKB_UNLOCK();
|
|
|
|
return (result);
|
|
|
|
}
|
|
|
|
}
|
|
|
|
|
|
|
|
/*
|
|
|
|
* Enable the access to the device; until this function is called,
|
|
|
|
* the client cannot read from the keyboard.
|
|
|
|
*/
|
|
|
|
static int
|
|
|
|
ckb_enable(keyboard_t *kbd)
|
|
|
|
{
|
|
|
|
|
|
|
|
CKB_LOCK();
|
|
|
|
KBD_ACTIVATE(kbd);
|
|
|
|
CKB_UNLOCK();
|
|
|
|
|
|
|
|
return (0);
|
|
|
|
}
|
|
|
|
|
|
|
|
/* disallow the access to the device */
|
|
|
|
static int
|
|
|
|
ckb_disable(keyboard_t *kbd)
|
|
|
|
{
|
|
|
|
|
|
|
|
CKB_LOCK();
|
|
|
|
KBD_DEACTIVATE(kbd);
|
|
|
|
CKB_UNLOCK();
|
|
|
|
|
|
|
|
return (0);
|
|
|
|
}
|
|
|
|
|
|
|
|
/* local functions */
|
|
|
|
|
|
|
|
static int
|
|
|
|
ckb_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 int
|
|
|
|
ckb_poll(keyboard_t *kbd, int on)
|
|
|
|
{
|
|
|
|
struct ckb_softc *sc;
|
|
|
|
|
|
|
|
sc = kbd->kb_data;
|
|
|
|
|
|
|
|
CKB_LOCK();
|
|
|
|
if (on) {
|
|
|
|
sc->sc_flags |= CKB_FLAG_POLLING;
|
|
|
|
sc->sc_poll_thread = curthread;
|
|
|
|
} else {
|
|
|
|
sc->sc_flags &= ~CKB_FLAG_POLLING;
|
|
|
|
}
|
|
|
|
CKB_UNLOCK();
|
|
|
|
|
|
|
|
return (0);
|
|
|
|
}
|
|
|
|
|
|
|
|
/* local functions */
|
|
|
|
|
|
|
|
static int dummy_kbd_configure(int flags);
|
|
|
|
|
|
|
|
keyboard_switch_t ckbdsw = {
|
|
|
|
.probe = &ckb__probe,
|
|
|
|
.init = &ckb_init,
|
|
|
|
.term = &ckb_term,
|
|
|
|
.intr = &ckb_intr,
|
|
|
|
.test_if = &ckb_test_if,
|
|
|
|
.enable = &ckb_enable,
|
|
|
|
.disable = &ckb_disable,
|
|
|
|
.read = &ckb_read,
|
|
|
|
.check = &ckb_check,
|
|
|
|
.read_char = &ckb_read_char,
|
|
|
|
.check_char = &ckb_check_char,
|
|
|
|
.ioctl = &ckb_ioctl,
|
|
|
|
.lock = &ckb_lock,
|
|
|
|
.clear_state = &ckb_clear_state,
|
|
|
|
.get_state = &ckb_get_state,
|
|
|
|
.set_state = &ckb_set_state,
|
|
|
|
.poll = &ckb_poll,
|
|
|
|
};
|
|
|
|
|
|
|
|
static int
|
|
|
|
dummy_kbd_configure(int flags)
|
|
|
|
{
|
|
|
|
|
|
|
|
return (0);
|
|
|
|
}
|
|
|
|
|
|
|
|
KEYBOARD_DRIVER(ckbd, ckbdsw, dummy_kbd_configure);
|
|
|
|
|
2014-05-30 06:45:50 +00:00
|
|
|
/*
|
|
|
|
* Parses 'keymap' into sc->keymap.
|
|
|
|
* Requires sc->cols and sc->rows to be set.
|
|
|
|
*/
|
|
|
|
static int
|
|
|
|
parse_keymap(struct ckb_softc *sc, pcell_t *keymap, size_t len)
|
|
|
|
{
|
|
|
|
int i;
|
|
|
|
|
|
|
|
sc->keymap = malloc(sc->cols * sc->rows * sizeof(sc->keymap[0]),
|
|
|
|
M_DEVBUF, M_NOWAIT | M_ZERO);
|
|
|
|
if (sc->keymap == NULL) {
|
|
|
|
return (ENOMEM);
|
|
|
|
}
|
|
|
|
|
|
|
|
for (i = 0; i < len; i++) {
|
|
|
|
/*
|
|
|
|
* Return value is ignored, we just write whatever fits into
|
|
|
|
* specified number of rows and columns and silently ignore
|
|
|
|
* everything else.
|
|
|
|
* Keymap entries follow this format: 0xRRCCKKKK
|
|
|
|
* RR - row number, CC - column number, KKKK - key code
|
|
|
|
*/
|
|
|
|
keymap_write(sc, (keymap[i] >> 16) & 0xff,
|
|
|
|
(keymap[i] >> 24) & 0xff,
|
|
|
|
keymap[i] & 0xffff);
|
|
|
|
}
|
|
|
|
|
|
|
|
return (0);
|
|
|
|
}
|
|
|
|
|
|
|
|
/* Allocates a new array for keymap and returns it in 'keymap'. */
|
|
|
|
static int
|
|
|
|
read_keymap(phandle_t node, const char *prop, pcell_t **keymap, size_t *len)
|
|
|
|
{
|
|
|
|
|
|
|
|
if ((*len = OF_getproplen(node, prop)) <= 0) {
|
|
|
|
return (ENXIO);
|
|
|
|
}
|
|
|
|
if ((*keymap = malloc(*len, M_DEVBUF, M_NOWAIT)) == NULL) {
|
|
|
|
return (ENOMEM);
|
|
|
|
}
|
|
|
|
if (OF_getencprop(node, prop, *keymap, *len) != *len) {
|
|
|
|
return (ENXIO);
|
|
|
|
}
|
|
|
|
return (0);
|
|
|
|
}
|
|
|
|
|
2014-03-30 15:22:36 +00:00
|
|
|
static int
|
|
|
|
parse_dts(struct ckb_softc *sc)
|
|
|
|
{
|
|
|
|
phandle_t node;
|
|
|
|
pcell_t dts_value;
|
2014-05-30 06:45:50 +00:00
|
|
|
pcell_t *keymap;
|
|
|
|
int len, ret;
|
|
|
|
const char *keymap_prop = NULL;
|
2014-03-30 15:22:36 +00:00
|
|
|
|
|
|
|
if ((node = ofw_bus_get_node(sc->dev)) == -1)
|
|
|
|
return (ENXIO);
|
|
|
|
|
2014-05-30 06:45:50 +00:00
|
|
|
if ((len = OF_getproplen(node, "google,key-rows")) <= 0)
|
2014-03-30 15:22:36 +00:00
|
|
|
return (ENXIO);
|
2014-08-08 06:29:30 +00:00
|
|
|
OF_getencprop(node, "google,key-rows", &dts_value, len);
|
|
|
|
sc->rows = dts_value;
|
2014-03-30 15:22:36 +00:00
|
|
|
|
2014-05-30 06:45:50 +00:00
|
|
|
if ((len = OF_getproplen(node, "google,key-columns")) <= 0)
|
2014-03-30 15:22:36 +00:00
|
|
|
return (ENXIO);
|
2014-08-08 06:29:30 +00:00
|
|
|
OF_getencprop(node, "google,key-columns", &dts_value, len);
|
|
|
|
sc->cols = dts_value;
|
2014-03-30 15:22:36 +00:00
|
|
|
|
2014-05-30 06:45:50 +00:00
|
|
|
if ((len = OF_getproplen(node, "freebsd,intr-gpio")) <= 0)
|
|
|
|
return (ENXIO);
|
2014-08-08 06:29:30 +00:00
|
|
|
OF_getencprop(node, "freebsd,intr-gpio", &dts_value, len);
|
|
|
|
sc->gpio = dts_value;
|
2014-05-30 06:45:50 +00:00
|
|
|
|
|
|
|
if (OF_hasprop(node, "freebsd,keymap")) {
|
|
|
|
keymap_prop = "freebsd,keymap";
|
|
|
|
device_printf(sc->dev, "using FreeBSD-specific keymap from FDT\n");
|
|
|
|
} else if (OF_hasprop(node, "linux,keymap")) {
|
|
|
|
keymap_prop = "linux,keymap";
|
|
|
|
device_printf(sc->dev, "using Linux keymap from FDT\n");
|
|
|
|
} else {
|
|
|
|
device_printf(sc->dev, "using built-in keymap\n");
|
|
|
|
}
|
|
|
|
|
|
|
|
if (keymap_prop != NULL) {
|
|
|
|
if ((ret = read_keymap(node, keymap_prop, &keymap, &len))) {
|
|
|
|
device_printf(sc->dev,
|
|
|
|
"failed to read keymap from FDT: %d\n", ret);
|
|
|
|
return (ret);
|
|
|
|
}
|
|
|
|
ret = parse_keymap(sc, keymap, len);
|
|
|
|
free(keymap, M_DEVBUF);
|
|
|
|
if (ret) {
|
|
|
|
return (ret);
|
|
|
|
}
|
|
|
|
} else {
|
|
|
|
if ((ret = parse_keymap(sc, default_keymap, KEYMAP_LEN))) {
|
|
|
|
return (ret);
|
|
|
|
}
|
|
|
|
}
|
|
|
|
|
|
|
|
if ((sc->rows == 0) || (sc->cols == 0) || (sc->gpio == 0))
|
2014-03-30 15:22:36 +00:00
|
|
|
return (ENXIO);
|
|
|
|
|
|
|
|
return (0);
|
|
|
|
}
|
|
|
|
|
|
|
|
void
|
|
|
|
ckb_ec_intr(void *arg)
|
|
|
|
{
|
|
|
|
struct ckb_softc *sc;
|
|
|
|
|
|
|
|
sc = arg;
|
|
|
|
|
|
|
|
if (sc->sc_flags & CKB_FLAG_POLLING)
|
|
|
|
return;
|
|
|
|
|
|
|
|
ec_command(EC_CMD_MKBP_STATE, sc->scan, sc->cols,
|
|
|
|
sc->scan, sc->cols);
|
|
|
|
|
|
|
|
(sc->sc_kbd.kb_callback.kc_func) (&sc->sc_kbd, KBDIO_KEYINPUT,
|
|
|
|
sc->sc_kbd.kb_callback.kc_arg);
|
|
|
|
};
|
|
|
|
|
|
|
|
static int
|
|
|
|
chrome_kb_attach(device_t dev)
|
|
|
|
{
|
|
|
|
struct ckb_softc *sc;
|
|
|
|
keyboard_t *kbd;
|
|
|
|
int error;
|
|
|
|
int rid;
|
|
|
|
int i;
|
|
|
|
|
|
|
|
sc = device_get_softc(dev);
|
|
|
|
|
|
|
|
sc->dev = dev;
|
2014-05-30 06:45:50 +00:00
|
|
|
sc->keymap = NULL;
|
2014-03-30 15:22:36 +00:00
|
|
|
|
|
|
|
if ((error = parse_dts(sc)) != 0)
|
|
|
|
return error;
|
|
|
|
|
2014-05-28 06:15:45 +00:00
|
|
|
sc->gpio_dev = devclass_get_device(devclass_find("gpio"), 0);
|
|
|
|
if (sc->gpio_dev == NULL) {
|
|
|
|
device_printf(sc->dev, "Can't find gpio device.\n");
|
|
|
|
return (ENXIO);
|
|
|
|
}
|
|
|
|
|
2014-03-30 15:22:36 +00:00
|
|
|
#if 0
|
|
|
|
device_printf(sc->dev, "Keyboard matrix [%dx%d]\n",
|
|
|
|
sc->cols, sc->rows);
|
|
|
|
#endif
|
|
|
|
|
2014-05-30 06:45:50 +00:00
|
|
|
pad_setup_intr(sc->gpio, ckb_ec_intr, sc);
|
2014-03-30 15:22:36 +00:00
|
|
|
|
|
|
|
kbd = &sc->sc_kbd;
|
|
|
|
rid = 0;
|
|
|
|
|
|
|
|
sc->scan_local = malloc(sc->cols, M_DEVBUF, M_NOWAIT);
|
|
|
|
sc->scan = malloc(sc->cols, M_DEVBUF, M_NOWAIT);
|
|
|
|
|
|
|
|
for (i = 0; i < sc->cols; i++) {
|
|
|
|
sc->scan_local[i] = 0;
|
|
|
|
sc->scan[i] = 0;
|
2016-04-10 23:07:00 +00:00
|
|
|
}
|
2014-03-30 15:22:36 +00:00
|
|
|
|
|
|
|
kbd_init_struct(kbd, KBD_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 < CKB_NFKEY; i++) {
|
|
|
|
sc->sc_fkeymap[i] = fkey_tab[i];
|
|
|
|
}
|
|
|
|
|
|
|
|
kbd_set_maps(kbd, &sc->sc_keymap, &sc->sc_accmap,
|
|
|
|
sc->sc_fkeymap, CKB_NFKEY);
|
|
|
|
|
|
|
|
KBD_FOUND_DEVICE(kbd);
|
|
|
|
ckb_clear_state(kbd);
|
|
|
|
KBD_PROBE_DONE(kbd);
|
|
|
|
|
|
|
|
callout_init(&sc->sc_repeat_callout, 0);
|
|
|
|
|
|
|
|
KBD_INIT_DONE(kbd);
|
|
|
|
|
|
|
|
if (kbd_register(kbd) < 0) {
|
|
|
|
return (ENXIO);
|
2016-04-10 23:07:00 +00:00
|
|
|
}
|
2014-03-30 15:22:36 +00:00
|
|
|
KBD_CONFIG_DONE(kbd);
|
|
|
|
|
|
|
|
return (0);
|
|
|
|
}
|
|
|
|
|
|
|
|
static int
|
|
|
|
chrome_kb_probe(device_t dev)
|
|
|
|
{
|
|
|
|
|
|
|
|
if (!ofw_bus_status_okay(dev))
|
|
|
|
return (ENXIO);
|
|
|
|
|
2014-05-30 06:45:50 +00:00
|
|
|
if (ofw_bus_is_compatible(dev, "google,cros-ec-keyb") ||
|
|
|
|
ofw_bus_is_compatible(dev, "google,mkbp-keyb")) {
|
2014-03-30 15:22:36 +00:00
|
|
|
device_set_desc(dev, "Chrome EC Keyboard");
|
|
|
|
return (BUS_PROBE_DEFAULT);
|
|
|
|
}
|
|
|
|
|
|
|
|
return (ENXIO);
|
|
|
|
}
|
|
|
|
|
2014-05-30 06:45:50 +00:00
|
|
|
static int
|
|
|
|
chrome_kb_detach(device_t dev)
|
|
|
|
{
|
|
|
|
struct ckb_softc *sc;
|
|
|
|
|
|
|
|
sc = device_get_softc(dev);
|
|
|
|
|
|
|
|
if (sc->keymap != NULL) {
|
|
|
|
free(sc->keymap, M_DEVBUF);
|
|
|
|
}
|
|
|
|
|
|
|
|
return 0;
|
|
|
|
}
|
|
|
|
|
2014-03-30 15:22:36 +00:00
|
|
|
static device_method_t chrome_kb_methods[] = {
|
|
|
|
DEVMETHOD(device_probe, chrome_kb_probe),
|
|
|
|
DEVMETHOD(device_attach, chrome_kb_attach),
|
2014-05-30 06:45:50 +00:00
|
|
|
DEVMETHOD(device_detach, chrome_kb_detach),
|
2014-03-30 15:22:36 +00:00
|
|
|
{ 0, 0 }
|
|
|
|
};
|
|
|
|
|
|
|
|
static driver_t chrome_kb_driver = {
|
|
|
|
"chrome_kb",
|
|
|
|
chrome_kb_methods,
|
|
|
|
sizeof(struct ckb_softc),
|
|
|
|
};
|
|
|
|
|
|
|
|
static devclass_t chrome_kb_devclass;
|
|
|
|
|
|
|
|
DRIVER_MODULE(chrome_kb, simplebus, chrome_kb_driver,
|
|
|
|
chrome_kb_devclass, 0, 0);
|