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https://github.com/freebsd/freebsd-src
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64fbda90da
The driver provides support for Human Interface Devices (HID) on Serial Peripheral Interface (SPI) buses on Apple Intel Macs produced in 2015-2018. The driver appears to work more stable after installation of Darwin OSI in acpi(4) driver. To install Darwin OSI insert following lines into /boot/loader.conf: hw.acpi.install_interface="Darwin" hw.acpi.remove_interface="Windows 2009, Windows 2012" Reviewed by: wulf Differential revision: https://reviews.freebsd.org/D39863
723 lines
20 KiB
C
723 lines
20 KiB
C
/*-
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* SPDX-License-Identifier: BSD-2-Clause
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*
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* Copyright (c) 2021-2023 Val Packett <val@packett.cool>
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* Copyright (c) 2023 Vladimir Kondratyev <wulf@FreeBSD.org>
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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 "opt_hid.h"
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#include "opt_spi.h"
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#include <sys/param.h>
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#include <sys/bus.h>
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#include <sys/crc16.h>
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#include <sys/endian.h>
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#include <sys/kdb.h>
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#include <sys/kernel.h>
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#include <sys/malloc.h>
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#include <sys/mutex.h>
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#include <sys/module.h>
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#include <sys/proc.h>
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#include <sys/rman.h>
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#include <sys/sysctl.h>
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#include <sys/sx.h>
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#include <sys/taskqueue.h>
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#include <dev/backlight/backlight.h>
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#include <dev/evdev/input.h>
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#define HID_DEBUG_VAR atopcase_debug
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#include <dev/hid/hid.h>
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#include <dev/hid/hidquirk.h>
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#include <dev/spibus/spi.h>
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#include <dev/spibus/spibusvar.h>
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#include "spibus_if.h"
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#include "atopcase_reg.h"
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#include "atopcase_var.h"
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#define ATOPCASE_IN_KDB() (SCHEDULER_STOPPED() || kdb_active)
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#define ATOPCASE_IN_POLLING_MODE(sc) \
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(((sc)->sc_gpe_bit == 0 && ((sc)->sc_irq_ih == NULL)) || cold ||\
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ATOPCASE_IN_KDB())
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#define ATOPCASE_WAKEUP(sc, chan) do { \
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if (!ATOPCASE_IN_POLLING_MODE(sc)) { \
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DPRINTFN(ATOPCASE_LLEVEL_DEBUG, "wakeup: %p\n", chan); \
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wakeup(chan); \
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} \
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} while (0)
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#define ATOPCASE_SPI_PAUSE() DELAY(100)
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#define ATOPCASE_SPI_NO_SLEEP_FLAG(sc) \
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((sc)->sc_irq_ih != NULL ? SPI_FLAG_NO_SLEEP : 0)
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/* Tunables */
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static SYSCTL_NODE(_hw_hid, OID_AUTO, atopcase, CTLFLAG_RW | CTLFLAG_MPSAFE, 0,
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"Apple MacBook Topcase HID driver");
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#ifdef HID_DEBUG
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enum atopcase_log_level atopcase_debug = ATOPCASE_LLEVEL_DISABLED;
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SYSCTL_INT(_hw_hid_atopcase, OID_AUTO, debug, CTLFLAG_RWTUN,
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&atopcase_debug, ATOPCASE_LLEVEL_DISABLED, "atopcase log level");
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#endif /* !HID_DEBUG */
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static const uint8_t booted[] = { 0xa0, 0x80, 0x00, 0x00 };
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static const uint8_t status_ok[] = { 0xac, 0x27, 0x68, 0xd5 };
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static inline struct atopcase_child *
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atopcase_get_child_by_device(struct atopcase_softc *sc, uint8_t device)
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{
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switch (device) {
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case ATOPCASE_DEV_KBRD:
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return (&sc->sc_kb);
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case ATOPCASE_DEV_TPAD:
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return (&sc->sc_tp);
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default:
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return (NULL);
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}
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}
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static int
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atopcase_receive_status(struct atopcase_softc *sc)
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{
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struct spi_command cmd = SPI_COMMAND_INITIALIZER;
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uint8_t dummy_buffer[4] = { 0 };
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uint8_t status_buffer[4] = { 0 };
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int err;
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cmd.tx_cmd = dummy_buffer;
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cmd.tx_cmd_sz = sizeof(dummy_buffer);
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cmd.rx_cmd = status_buffer;
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cmd.rx_cmd_sz = sizeof(status_buffer);
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cmd.flags = ATOPCASE_SPI_NO_SLEEP_FLAG(sc);
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err = SPIBUS_TRANSFER(device_get_parent(sc->sc_dev), sc->sc_dev, &cmd);
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ATOPCASE_SPI_PAUSE();
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if (err) {
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device_printf(sc->sc_dev, "SPI error: %d\n", err);
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return (err);
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}
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DPRINTFN(ATOPCASE_LLEVEL_TRACE, "Status: %*D\n", 4, status_buffer, " ");
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if (memcmp(status_buffer, status_ok, sizeof(status_ok)) == 0) {
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DPRINTFN(ATOPCASE_LLEVEL_DEBUG, "Wrote command\n");
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ATOPCASE_WAKEUP(sc, sc->sc_dev);
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} else {
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device_printf(sc->sc_dev, "Failed to write command\n");
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return (EIO);
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}
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return (0);
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}
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static int
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atopcase_process_message(struct atopcase_softc *sc, uint8_t device, void *msg,
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uint16_t msg_len)
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{
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struct atopcase_header *hdr = msg;
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struct atopcase_child *ac;
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void *payload;
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uint16_t pl_len, crc;
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payload = (uint8_t *)msg + sizeof(*hdr);
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pl_len = le16toh(hdr->len);
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if (pl_len + sizeof(*hdr) + sizeof(crc) != msg_len) {
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DPRINTFN(ATOPCASE_LLEVEL_DEBUG,
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"message with length overflow\n");
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return (EIO);
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}
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crc = le16toh(*(uint16_t *)((uint8_t *)payload + pl_len));
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if (crc != crc16(0, msg, msg_len - sizeof(crc))) {
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DPRINTFN(ATOPCASE_LLEVEL_DEBUG,
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"message with failed checksum\n");
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return (EIO);
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}
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#define CPOFF(dst, len, off) do { \
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unsigned _len = le16toh(len); \
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unsigned _off = le16toh(off); \
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if (pl_len >= _len + _off) { \
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memcpy(dst, (uint8_t*)payload + _off, MIN(_len, sizeof(dst)));\
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(dst)[MIN(_len, sizeof(dst) - 1)] = '\0'; \
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}} while (0);
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if ((ac = atopcase_get_child_by_device(sc, device)) != NULL
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&& hdr->type == ATOPCASE_MSG_TYPE_REPORT(device)) {
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if (ac->open)
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ac->intr_handler(ac->intr_ctx, payload, pl_len);
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} else if (device == ATOPCASE_DEV_INFO
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&& hdr->type == ATOPCASE_MSG_TYPE_INFO(ATOPCASE_INFO_IFACE)
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&& (ac = atopcase_get_child_by_device(sc, hdr->type_arg)) != NULL) {
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struct atopcase_iface_info_payload *iface = payload;
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CPOFF(ac->name, iface->name_len, iface->name_off);
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DPRINTF("Interface #%d name: %s\n", ac->device, ac->name);
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} else if (device == ATOPCASE_DEV_INFO
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&& hdr->type == ATOPCASE_MSG_TYPE_INFO(ATOPCASE_INFO_DESCRIPTOR)
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&& (ac = atopcase_get_child_by_device(sc, hdr->type_arg)) != NULL) {
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memcpy(ac->rdesc, payload, pl_len);
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ac->rdesc_len = ac->hw.rdescsize = pl_len;
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DPRINTF("%s HID report descriptor: %*D\n", ac->name,
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(int) ac->hw.rdescsize, ac->rdesc, " ");
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} else if (device == ATOPCASE_DEV_INFO
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&& hdr->type == ATOPCASE_MSG_TYPE_INFO(ATOPCASE_INFO_DEVICE)
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&& hdr->type_arg == ATOPCASE_INFO_DEVICE) {
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struct atopcase_device_info_payload *dev = payload;
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sc->sc_vid = le16toh(dev->vid);
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sc->sc_pid = le16toh(dev->pid);
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sc->sc_ver = le16toh(dev->ver);
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CPOFF(sc->sc_vendor, dev->vendor_len, dev->vendor_off);
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CPOFF(sc->sc_product, dev->product_len, dev->product_off);
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CPOFF(sc->sc_serial, dev->serial_len, dev->serial_off);
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if (bootverbose) {
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device_printf(sc->sc_dev, "Device info descriptor:\n");
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printf(" Vendor: %s\n", sc->sc_vendor);
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printf(" Product: %s\n", sc->sc_product);
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printf(" Serial: %s\n", sc->sc_serial);
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}
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}
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return (0);
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}
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int
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atopcase_receive_packet(struct atopcase_softc *sc)
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{
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struct atopcase_packet pkt = { 0 };
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struct spi_command cmd = SPI_COMMAND_INITIALIZER;
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void *msg;
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int err;
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uint16_t length, remaining, offset, msg_len;
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bzero(&sc->sc_junk, sizeof(struct atopcase_packet));
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cmd.tx_cmd = &sc->sc_junk;
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cmd.tx_cmd_sz = sizeof(struct atopcase_packet);
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cmd.rx_cmd = &pkt;
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cmd.rx_cmd_sz = sizeof(struct atopcase_packet);
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cmd.flags = ATOPCASE_SPI_NO_SLEEP_FLAG(sc);
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err = SPIBUS_TRANSFER(device_get_parent(sc->sc_dev), sc->sc_dev, &cmd);
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ATOPCASE_SPI_PAUSE();
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if (err) {
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device_printf(sc->sc_dev, "SPI error: %d\n", err);
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return (err);
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}
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DPRINTFN(ATOPCASE_LLEVEL_TRACE, "Response: %*D\n", 256, &pkt, " ");
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if (le16toh(pkt.checksum) != crc16(0, &pkt, sizeof(pkt) - 2)) {
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DPRINTFN(ATOPCASE_LLEVEL_DEBUG, "packet with failed checksum\n");
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return (EIO);
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}
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/*
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* When we poll and nothing has arrived we get a particular packet
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* starting with '80 11 00 01'
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*/
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if (pkt.direction == ATOPCASE_DIR_NOTHING) {
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DPRINTFN(ATOPCASE_LLEVEL_DEBUG, "'Nothing' packet: %*D\n", 4,
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&pkt, " ");
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return (EAGAIN);
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}
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if (pkt.direction != ATOPCASE_DIR_READ &&
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pkt.direction != ATOPCASE_DIR_WRITE) {
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DPRINTFN(ATOPCASE_LLEVEL_DEBUG,
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"unknown message direction 0x%x\n", pkt.direction);
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return (EIO);
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}
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length = le16toh(pkt.length);
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remaining = le16toh(pkt.remaining);
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offset = le16toh(pkt.offset);
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if (length > sizeof(pkt.data)) {
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DPRINTFN(ATOPCASE_LLEVEL_DEBUG,
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"packet with length overflow: %u\n", length);
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return (EIO);
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}
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if (pkt.direction == ATOPCASE_DIR_READ &&
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pkt.device == ATOPCASE_DEV_INFO &&
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length == sizeof(booted) &&
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memcmp(pkt.data, booted, length) == 0) {
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DPRINTFN(ATOPCASE_LLEVEL_DEBUG, "GPE boot packet\n");
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sc->sc_booted = true;
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ATOPCASE_WAKEUP(sc, sc);
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return (0);
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}
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/* handle multi-packet messages */
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if (remaining != 0 || offset != 0) {
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if (offset != sc->sc_msg_len) {
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DPRINTFN(ATOPCASE_LLEVEL_DEBUG,
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"Unexpected offset (got %u, expected %u)\n",
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offset, sc->sc_msg_len);
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sc->sc_msg_len = 0;
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return (EIO);
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}
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if ((size_t)remaining + length + offset > sizeof(sc->sc_msg)) {
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DPRINTFN(ATOPCASE_LLEVEL_DEBUG,
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"Message with length overflow: %zu\n",
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(size_t)remaining + length + offset);
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sc->sc_msg_len = 0;
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return (EIO);
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}
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memcpy(sc->sc_msg + offset, &pkt.data, length);
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sc->sc_msg_len += length;
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if (remaining != 0)
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return (0);
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msg = sc->sc_msg;
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msg_len = sc->sc_msg_len;
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} else {
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msg = pkt.data;
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msg_len = length;
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}
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sc->sc_msg_len = 0;
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err = atopcase_process_message(sc, pkt.device, msg, msg_len);
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if (err == 0 && pkt.direction == ATOPCASE_DIR_WRITE) {
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DPRINTFN(ATOPCASE_LLEVEL_DEBUG, "Write ack\n");
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ATOPCASE_WAKEUP(sc, sc);
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}
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return (err);
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}
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static int
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atopcase_send(struct atopcase_softc *sc, struct atopcase_packet *pkt)
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{
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struct spi_command cmd = SPI_COMMAND_INITIALIZER;
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int err, retries;
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cmd.tx_cmd = pkt;
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cmd.tx_cmd_sz = sizeof(struct atopcase_packet);
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cmd.rx_cmd = &sc->sc_junk;
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cmd.rx_cmd_sz = sizeof(struct atopcase_packet);
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cmd.flags = SPI_FLAG_KEEP_CS | ATOPCASE_SPI_NO_SLEEP_FLAG(sc);
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DPRINTFN(ATOPCASE_LLEVEL_TRACE, "Request: %*D\n",
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(int)sizeof(struct atopcase_packet), cmd.tx_cmd, " ");
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if (!ATOPCASE_IN_POLLING_MODE(sc)) {
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if (sc->sc_irq_ih != NULL)
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mtx_lock(&sc->sc_mtx);
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else
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sx_xlock(&sc->sc_sx);
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}
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sc->sc_wait_for_status = true;
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err = SPIBUS_TRANSFER(device_get_parent(sc->sc_dev), sc->sc_dev, &cmd);
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ATOPCASE_SPI_PAUSE();
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if (!ATOPCASE_IN_POLLING_MODE(sc)) {
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if (sc->sc_irq_ih != NULL)
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mtx_unlock(&sc->sc_mtx);
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else
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sx_xunlock(&sc->sc_sx);
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}
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if (err != 0) {
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device_printf(sc->sc_dev, "SPI error: %d\n", err);
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goto exit;
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}
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if (ATOPCASE_IN_POLLING_MODE(sc)) {
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err = atopcase_receive_status(sc);
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} else {
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DPRINTFN(ATOPCASE_LLEVEL_DEBUG, "wait for: %p\n", sc->sc_dev);
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err = tsleep(sc->sc_dev, 0, "atcstat", hz / 10);
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}
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sc->sc_wait_for_status = false;
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if (err != 0) {
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DPRINTF("Write status read failed: %d\n", err);
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goto exit;
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}
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if (ATOPCASE_IN_POLLING_MODE(sc)) {
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/* Backlight setting may require a lot of time */
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retries = 20;
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while ((err = atopcase_receive_packet(sc)) == EAGAIN &&
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--retries != 0)
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DELAY(1000);
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} else {
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DPRINTFN(ATOPCASE_LLEVEL_DEBUG, "wait for: %p\n", sc);
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err = tsleep(sc, 0, "atcack", hz / 10);
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}
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if (err != 0)
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DPRINTF("Write ack read failed: %d\n", err);
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exit:
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if (err == EWOULDBLOCK)
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err = EIO;
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return (err);
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}
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static void
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atopcase_create_message(struct atopcase_packet *pkt, uint8_t device,
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uint16_t type, uint8_t type_arg, const void *payload, uint8_t len,
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uint16_t resp_len)
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{
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struct atopcase_header *hdr = (struct atopcase_header *)pkt->data;
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uint16_t msg_checksum;
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static uint8_t seq_no;
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KASSERT(len <= ATOPCASE_DATA_SIZE - sizeof(struct atopcase_header),
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("outgoing msg must be 1 packet"));
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bzero(pkt, sizeof(struct atopcase_packet));
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pkt->direction = ATOPCASE_DIR_WRITE;
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pkt->device = device;
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pkt->length = htole16(sizeof(*hdr) + len + 2);
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hdr->type = htole16(type);
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hdr->type_arg = type_arg;
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hdr->seq_no = seq_no++;
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hdr->resp_len = htole16((resp_len == 0) ? len : resp_len);
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hdr->len = htole16(len);
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memcpy(pkt->data + sizeof(*hdr), payload, len);
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msg_checksum = htole16(crc16(0, pkt->data, pkt->length - 2));
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memcpy(pkt->data + sizeof(*hdr) + len, &msg_checksum, 2);
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pkt->checksum = htole16(crc16(0, (uint8_t*)pkt, sizeof(*pkt) - 2));
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return;
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}
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|
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static int
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atopcase_request_desc(struct atopcase_softc *sc, uint16_t type, uint8_t device)
|
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{
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atopcase_create_message(
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&sc->sc_buf, ATOPCASE_DEV_INFO, type, device, NULL, 0, 0x200);
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return (atopcase_send(sc, &sc->sc_buf));
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}
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|
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int
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atopcase_intr(struct atopcase_softc *sc)
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{
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int err;
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|
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DPRINTFN(ATOPCASE_LLEVEL_DEBUG, "Interrupt event\n");
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|
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if (sc->sc_wait_for_status) {
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err = atopcase_receive_status(sc);
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sc->sc_wait_for_status = false;
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} else
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err = atopcase_receive_packet(sc);
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|
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return (err);
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}
|
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|
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static int
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atopcase_add_child(struct atopcase_softc *sc, struct atopcase_child *ac,
|
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uint8_t device)
|
|
{
|
|
device_t hidbus;
|
|
int err = 0;
|
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|
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ac->device = device;
|
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|
|
/* fill device info */
|
|
strlcpy(ac->hw.name, "Apple MacBook", sizeof(ac->hw.name));
|
|
ac->hw.idBus = BUS_SPI;
|
|
ac->hw.idVendor = sc->sc_vid;
|
|
ac->hw.idProduct = sc->sc_pid;
|
|
ac->hw.idVersion = sc->sc_ver;
|
|
strlcpy(ac->hw.idPnP, sc->sc_hid, sizeof(ac->hw.idPnP));
|
|
strlcpy(ac->hw.serial, sc->sc_serial, sizeof(ac->hw.serial));
|
|
/*
|
|
* HID write and set_report methods executed on Apple SPI topcase
|
|
* hardware do the same request on SPI layer. Set HQ_NOWRITE quirk to
|
|
* force hidmap to convert writes to set_reports. That makes HID bus
|
|
* write handler unnecessary and reduces code duplication.
|
|
*/
|
|
hid_add_dynamic_quirk(&ac->hw, HQ_NOWRITE);
|
|
|
|
DPRINTF("Get the interface #%d descriptor\n", device);
|
|
err = atopcase_request_desc(sc,
|
|
ATOPCASE_MSG_TYPE_INFO(ATOPCASE_INFO_IFACE), device);
|
|
if (err) {
|
|
device_printf(sc->sc_dev, "can't receive iface descriptor\n");
|
|
goto exit;
|
|
}
|
|
|
|
DPRINTF("Get the \"%s\" HID report descriptor\n", ac->name);
|
|
err = atopcase_request_desc(sc,
|
|
ATOPCASE_MSG_TYPE_INFO(ATOPCASE_INFO_DESCRIPTOR), device);
|
|
if (err) {
|
|
device_printf(sc->sc_dev, "can't receive report descriptor\n");
|
|
goto exit;
|
|
}
|
|
|
|
hidbus = device_add_child(sc->sc_dev, "hidbus", -1);
|
|
if (hidbus == NULL) {
|
|
device_printf(sc->sc_dev, "can't add child\n");
|
|
err = ENOMEM;
|
|
goto exit;
|
|
}
|
|
device_set_ivars(hidbus, &ac->hw);
|
|
ac->hidbus = hidbus;
|
|
|
|
exit:
|
|
return (err);
|
|
}
|
|
|
|
int
|
|
atopcase_init(struct atopcase_softc *sc)
|
|
{
|
|
int err;
|
|
|
|
/* Wait until we know we're getting reasonable responses */
|
|
if(!sc->sc_booted && tsleep(sc, 0, "atcboot", hz / 20) != 0) {
|
|
device_printf(sc->sc_dev, "can't establish communication\n");
|
|
err = EIO;
|
|
goto err;
|
|
}
|
|
|
|
/*
|
|
* Management device may send a message on first boot after power off.
|
|
* Let interrupt handler to read and discard it.
|
|
*/
|
|
DELAY(2000);
|
|
|
|
DPRINTF("Get the device descriptor\n");
|
|
err = atopcase_request_desc(sc,
|
|
ATOPCASE_MSG_TYPE_INFO(ATOPCASE_INFO_DEVICE),
|
|
ATOPCASE_INFO_DEVICE);
|
|
if (err) {
|
|
device_printf(sc->sc_dev, "can't receive device descriptor\n");
|
|
goto err;
|
|
}
|
|
|
|
err = atopcase_add_child(sc, &sc->sc_kb, ATOPCASE_DEV_KBRD);
|
|
if (err != 0)
|
|
goto err;
|
|
err = atopcase_add_child(sc, &sc->sc_tp, ATOPCASE_DEV_TPAD);
|
|
if (err != 0)
|
|
goto err;
|
|
|
|
/* TODO: skip on 2015 models where it's controlled by asmc */
|
|
sc->sc_backlight = backlight_register("atopcase", sc->sc_dev);
|
|
if (!sc->sc_backlight) {
|
|
device_printf(sc->sc_dev, "can't register backlight\n");
|
|
err = ENOMEM;
|
|
}
|
|
|
|
if (sc->sc_tq != NULL)
|
|
taskqueue_enqueue_timeout(sc->sc_tq, &sc->sc_task, hz / 120);
|
|
|
|
return (bus_generic_attach(sc->sc_dev));
|
|
|
|
err:
|
|
return (err);
|
|
}
|
|
|
|
int
|
|
atopcase_destroy(struct atopcase_softc *sc)
|
|
{
|
|
int err;
|
|
|
|
err = device_delete_children(sc->sc_dev);
|
|
if (err)
|
|
return (err);
|
|
|
|
if (sc->sc_backlight)
|
|
backlight_destroy(sc->sc_backlight);
|
|
|
|
return (0);
|
|
}
|
|
|
|
static struct atopcase_child *
|
|
atopcase_get_child_by_hidbus(device_t child)
|
|
{
|
|
device_t parent = device_get_parent(child);
|
|
struct atopcase_softc *sc = device_get_softc(parent);
|
|
|
|
if (child == sc->sc_kb.hidbus)
|
|
return (&sc->sc_kb);
|
|
if (child == sc->sc_tp.hidbus)
|
|
return (&sc->sc_tp);
|
|
panic("unknown child");
|
|
}
|
|
|
|
void
|
|
atopcase_intr_setup(device_t dev, device_t child, hid_intr_t intr,
|
|
void *context, struct hid_rdesc_info *rdesc)
|
|
{
|
|
struct atopcase_child *ac = atopcase_get_child_by_hidbus(child);
|
|
|
|
if (intr == NULL)
|
|
return;
|
|
|
|
rdesc->rdsize = ATOPCASE_MSG_SIZE - sizeof(struct atopcase_header) - 2;
|
|
rdesc->grsize = 0;
|
|
rdesc->srsize = ATOPCASE_DATA_SIZE - sizeof(struct atopcase_header) - 2;
|
|
rdesc->wrsize = 0;
|
|
|
|
ac->intr_handler = intr;
|
|
ac->intr_ctx = context;
|
|
}
|
|
|
|
void
|
|
atopcase_intr_unsetup(device_t dev, device_t child)
|
|
{
|
|
}
|
|
|
|
int
|
|
atopcase_intr_start(device_t dev, device_t child)
|
|
{
|
|
struct atopcase_softc *sc = device_get_softc(dev);
|
|
struct atopcase_child *ac = atopcase_get_child_by_hidbus(child);
|
|
|
|
if (ATOPCASE_IN_POLLING_MODE(sc))
|
|
sx_xlock(&sc->sc_write_sx);
|
|
else if (sc->sc_irq_ih != NULL)
|
|
mtx_lock(&sc->sc_mtx);
|
|
else
|
|
sx_xlock(&sc->sc_sx);
|
|
ac->open = true;
|
|
if (ATOPCASE_IN_POLLING_MODE(sc))
|
|
sx_xunlock(&sc->sc_write_sx);
|
|
else if (sc->sc_irq_ih != NULL)
|
|
mtx_unlock(&sc->sc_mtx);
|
|
else
|
|
sx_xunlock(&sc->sc_sx);
|
|
|
|
return (0);
|
|
}
|
|
|
|
int
|
|
atopcase_intr_stop(device_t dev, device_t child)
|
|
{
|
|
struct atopcase_softc *sc = device_get_softc(dev);
|
|
struct atopcase_child *ac = atopcase_get_child_by_hidbus(child);
|
|
|
|
if (ATOPCASE_IN_POLLING_MODE(sc))
|
|
sx_xlock(&sc->sc_write_sx);
|
|
else if (sc->sc_irq_ih != NULL)
|
|
mtx_lock(&sc->sc_mtx);
|
|
else
|
|
sx_xlock(&sc->sc_sx);
|
|
ac->open = false;
|
|
if (ATOPCASE_IN_POLLING_MODE(sc))
|
|
sx_xunlock(&sc->sc_write_sx);
|
|
else if (sc->sc_irq_ih != NULL)
|
|
mtx_unlock(&sc->sc_mtx);
|
|
else
|
|
sx_xunlock(&sc->sc_sx);
|
|
|
|
return (0);
|
|
}
|
|
|
|
void
|
|
atopcase_intr_poll(device_t dev, device_t child)
|
|
{
|
|
struct atopcase_softc *sc = device_get_softc(dev);
|
|
|
|
(void)atopcase_receive_packet(sc);
|
|
}
|
|
|
|
int
|
|
atopcase_get_rdesc(device_t dev, device_t child, void *buf, hid_size_t len)
|
|
{
|
|
struct atopcase_child *ac = atopcase_get_child_by_hidbus(child);
|
|
|
|
if (ac->rdesc_len != len)
|
|
return (ENXIO);
|
|
memcpy(buf, ac->rdesc, len);
|
|
|
|
return (0);
|
|
}
|
|
|
|
int
|
|
atopcase_set_report(device_t dev, device_t child, const void *buf,
|
|
hid_size_t len, uint8_t type __unused, uint8_t id)
|
|
{
|
|
struct atopcase_softc *sc = device_get_softc(dev);
|
|
struct atopcase_child *ac = atopcase_get_child_by_hidbus(child);
|
|
int err;
|
|
|
|
if (len >= ATOPCASE_DATA_SIZE - sizeof(struct atopcase_header) - 2)
|
|
return (EINVAL);
|
|
|
|
DPRINTF("%s HID command SET_REPORT %d (len %d): %*D\n",
|
|
ac->name, id, len, len, buf, " ");
|
|
|
|
if (!ATOPCASE_IN_KDB())
|
|
sx_xlock(&sc->sc_write_sx);
|
|
atopcase_create_message(&sc->sc_buf, ac->device,
|
|
ATOPCASE_MSG_TYPE_SET_REPORT(ac->device, id), 0, buf, len, 0);
|
|
err = atopcase_send(sc, &sc->sc_buf);
|
|
if (!ATOPCASE_IN_KDB())
|
|
sx_xunlock(&sc->sc_write_sx);
|
|
|
|
return (err);
|
|
}
|
|
|
|
int
|
|
atopcase_backlight_update_status(device_t dev, struct backlight_props *props)
|
|
{
|
|
struct atopcase_softc *sc = device_get_softc(dev);
|
|
struct atopcase_bl_payload payload = { 0 };
|
|
|
|
payload.report_id = ATOPCASE_BKL_REPORT_ID;
|
|
payload.device = ATOPCASE_DEV_KBRD;
|
|
/*
|
|
* Hardware range is 32-255 for visible backlight,
|
|
* convert from percentages
|
|
*/
|
|
payload.level = (props->brightness == 0) ? 0 :
|
|
(32 + (223 * props->brightness / 100));
|
|
payload.status = (payload.level > 0) ? 0x01F4 : 0x1;
|
|
|
|
return (atopcase_set_report(dev, sc->sc_kb.hidbus, &payload,
|
|
sizeof(payload), HID_OUTPUT_REPORT, ATOPCASE_BKL_REPORT_ID));
|
|
}
|
|
|
|
int
|
|
atopcase_backlight_get_status(device_t dev, struct backlight_props *props)
|
|
{
|
|
struct atopcase_softc *sc = device_get_softc(dev);
|
|
|
|
props->brightness = sc->sc_backlight_level;
|
|
props->nlevels = 0;
|
|
|
|
return (0);
|
|
}
|
|
|
|
int
|
|
atopcase_backlight_get_info(device_t dev, struct backlight_info *info)
|
|
{
|
|
info->type = BACKLIGHT_TYPE_KEYBOARD;
|
|
strlcpy(info->name, "Apple MacBook Keyboard", BACKLIGHTMAXNAMELENGTH);
|
|
|
|
return (0);
|
|
}
|