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[src/trunk]: src/sys/dev/ic Add initial support for Intel GPIO chips
details: https://anonhg.NetBSD.org/src/rev/05f220b5910b
branches: trunk
changeset: 364421:05f220b5910b
user: manu <manu%NetBSD.org@localhost>
date: Thu Mar 24 02:24:24 2022 +0000
description:
Add initial support for Intel GPIO chips
diffstat:
sys/arch/amd64/conf/GENERIC | 7 +-
sys/conf/files | 6 +-
sys/dev/acpi/files.acpi | 6 +-
sys/dev/acpi/igpio_acpi.c | 237 ++++++++++++
sys/dev/ic/igpio.c | 806 ++++++++++++++++++++++++++++++++++++++++++++
sys/dev/ic/igpioreg.h | 493 ++++++++++++++++++++++++++
sys/dev/ic/igpiovar.h | 63 +++
7 files changed, 1614 insertions(+), 4 deletions(-)
diffs (truncated from 1683 to 300 lines):
diff -r dc012c23ca19 -r 05f220b5910b sys/arch/amd64/conf/GENERIC
--- a/sys/arch/amd64/conf/GENERIC Thu Mar 24 01:55:15 2022 +0000
+++ b/sys/arch/amd64/conf/GENERIC Thu Mar 24 02:24:24 2022 +0000
@@ -1,4 +1,4 @@
-# $NetBSD: GENERIC,v 1.593 2021/10/31 00:31:48 simonb Exp $
+# $NetBSD: GENERIC,v 1.594 2022/03/24 02:24:24 manu Exp $
#
# GENERIC machine description file
#
@@ -22,7 +22,7 @@
options INCLUDE_CONFIG_FILE # embed config file in kernel binary
-#ident "GENERIC-$Revision: 1.593 $"
+#ident "GENERIC-$Revision: 1.594 $"
maxusers 64 # estimated number of users
@@ -596,6 +596,9 @@
#sdtemp* at iic? addr 0x1e
#sdtemp* at iic? addr 0x1f
+# Intel GPIO
+igpio* at acpi?
+
# I2C HID devices
ihidev* at iic?
diff -r dc012c23ca19 -r 05f220b5910b sys/conf/files
--- a/sys/conf/files Thu Mar 24 01:55:15 2022 +0000
+++ b/sys/conf/files Thu Mar 24 02:24:24 2022 +0000
@@ -1,4 +1,4 @@
-# $NetBSD: files,v 1.1295 2022/02/16 20:14:30 riastradh Exp $
+# $NetBSD: files,v 1.1296 2022/03/24 02:24:24 manu Exp $
# @(#)files.newconf 7.5 (Berkeley) 5/10/93
version 20171118
@@ -1357,6 +1357,10 @@
device plmmc: sdmmcbus
file dev/ic/pl181.c plmmc
+# Intel GPIO
+device igpio: gpiobus
+file dev/ic/igpio.c igpio
+
# Myson MTD803 3-in-1 Fast Ethernet Controller
device mtd: arp, ether, ifnet, mii
file dev/ic/mtd803.c mtd
diff -r dc012c23ca19 -r 05f220b5910b sys/dev/acpi/files.acpi
--- a/sys/dev/acpi/files.acpi Thu Mar 24 01:55:15 2022 +0000
+++ b/sys/dev/acpi/files.acpi Thu Mar 24 02:24:24 2022 +0000
@@ -1,4 +1,4 @@
-# $NetBSD: files.acpi,v 1.124 2022/02/16 20:14:30 riastradh Exp $
+# $NetBSD: files.acpi,v 1.125 2022/03/24 02:24:25 manu Exp $
defflag opt_acpi.h ACPIVERBOSE ACPI_DEBUG ACPI_ACTIVATE_DEV
ACPI_DSDT_OVERRIDE ACPI_SCANPCI ACPI_BREAKPOINT
@@ -300,6 +300,10 @@
attach eqos at acpinodebus with eqos_acpi
file dev/acpi/eqos_acpi.c eqos_acpi
+# Intel GPIO
+attach igpio at acpinodebus with igpio_acpi
+file dev/acpi/igpio_acpi.c igpio_acpi
+
# DesignWare Mobile Storage Host Controller
attach dwcmmc at acpinodebus with dwcmmc_acpi
file dev/acpi/dwcmmc_acpi.c dwcmmc_acpi
diff -r dc012c23ca19 -r 05f220b5910b sys/dev/acpi/igpio_acpi.c
--- /dev/null Thu Jan 01 00:00:00 1970 +0000
+++ b/sys/dev/acpi/igpio_acpi.c Thu Mar 24 02:24:24 2022 +0000
@@ -0,0 +1,237 @@
+/* $NetBSD: igpio_acpi.c,v 1.1 2022/03/24 02:24:25 manu Exp $ */
+
+/*-
+ * Copyright (c) 2021,2022 Emmanuel Dreyfus
+ * All rights reserved.
+ *
+ * Redistribution and use in source and binary forms, with or without
+ * modification, are permitted provided that the following conditions
+ * are met:
+ * 1. Redistributions of source code must retain the above copyright
+ * notice, this list of conditions and the following disclaimer.
+ * 2. Redistributions in binary form must reproduce the above copyright
+ * notice, this list of conditions and the following disclaimer in the
+ * documentation and/or other materials provided with the distribution.
+ *
+ * THIS SOFTWARE IS PROVIDED BY THE NETBSD FOUNDATION, INC. AND CONTRIBUTORS
+ * ``AS IS'' AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED
+ * TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR
+ * PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE FOUNDATION OR CONTRIBUTORS
+ * BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR
+ * CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF
+ * SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS
+ * INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN
+ * CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE)
+ * ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE
+ * POSSIBILITY OF SUCH DAMAGE.
+ */
+
+#include <sys/cdefs.h>
+__KERNEL_RCSID(0, "$NetBSD: igpio_acpi.c,v 1.1 2022/03/24 02:24:25 manu Exp $");
+
+#include <sys/param.h>
+#include <sys/kmem.h>
+#include <sys/bus.h>
+#include <sys/cpu.h>
+#include <sys/device.h>
+#include <sys/gpio.h>
+
+#include <dev/acpi/acpireg.h>
+#include <dev/acpi/acpivar.h>
+#include <dev/acpi/acpi_intr.h>
+#include <dev/acpi/acpi_event.h>
+
+#include <dev/gpio/gpiovar.h>
+#include <dev/ic/igpiovar.h>
+
+struct igpio_acpi_softc {
+ ACPI_HANDLE sc_handle;
+ struct igpio_softc sc_isc;
+ struct acpi_event * sc_event[8];
+ int sc_pmf;
+ void *sc_intr;
+};
+
+static int igpio_acpi_match(device_t, cfdata_t, void *);
+static void igpio_acpi_attach(device_t, device_t, void *);
+static int igpio_acpi_detach(device_t, int);
+
+static void igpio_acpi_register_event(void *, struct acpi_event *, ACPI_RESOURCE_GPIO *);
+static int igpio_acpi_intr(void *);
+
+CFATTACH_DECL_NEW(igpio_acpi, sizeof(struct igpio_acpi_softc), igpio_acpi_match, igpio_acpi_attach, igpio_acpi_detach, NULL);
+
+static const struct device_compatible_entry compat_data[] = {
+ { .compat = "INT33B2" }, /* baytrail */
+ { .compat = "INT33C7" }, /* lynxpoint */
+ { .compat = "INT33FC" }, /* baytrail */
+ { .compat = "INT3437" }, /* lynxpoint */
+ { .compat = "INT344B" }, /* sunrisepoint */
+ { .compat = "INT3450" }, /* cannonlake */
+ { .compat = "INT3451" }, /* sunrisepoint */
+ { .compat = "INT3453" }, /* geminilake */
+ { .compat = "INT3455" }, /* icelake */
+ { .compat = "INT345D" }, /* sunrisepoint */
+ { .compat = "INT34BB" }, /* cannonlake */
+ { .compat = "INT34C4" }, /* lakefield */
+ { .compat = "INT34C5" }, /* tigerlake */
+ { .compat = "INT34C6" }, /* tigerlake */
+ { .compat = "INT34C8" }, /* jasperlake */
+ { .compat = "INT3536" }, /* lewisburg */
+ { .compat = "INTC1055" }, /* tigerlake */
+ { .compat = "INTC1056" }, /* alderlake */
+ { .compat = "INTC1057" }, /* tigerlake */
+ { .compat = "INTC1071" }, /* emmitsburg */
+ { .compat = "INTC3000" }, /* denverton */
+ { .compat = "INTC3001" }, /* cedarfork */
+#ifdef notyet
+ /*
+ * Complete bank setup in src/sys/dev/ic/igpioreg.h
+ * before enabling
+ */
+ { .compat = "INT3452" }, /* broxton */
+ { .compat = "INT34D1" }, /* broxton */
+ { .compat = "apollolake-pinctrl" }, /* broxton */
+ { .compat = "broxton-pinctrl" }, /* broxton */
+ { .compat = "INT33FF" }, /* cherryview */
+#endif
+ DEVICE_COMPAT_EOL
+};
+
+static int
+igpio_acpi_match(device_t parent, cfdata_t cf, void *aux)
+{
+ struct acpi_attach_args *aa = aux;
+
+ return acpi_compatible_match(aa, compat_data);
+}
+
+static void
+igpio_acpi_attach(device_t parent, device_t self, void *aux)
+{
+ struct igpio_acpi_softc * const asc = device_private(self);
+ struct acpi_attach_args *aa = aux;
+ ACPI_DEVICE_INFO *ad = aa->aa_node->ad_devinfo;
+ struct acpi_resources res;
+ struct acpi_mem *mem;
+ struct acpi_irq *irq;
+ int nbar;
+ ACPI_STATUS rv;
+ int i;
+
+ asc->sc_handle = aa->aa_node->ad_handle;
+
+ rv = acpi_resource_parse(self, aa->aa_node->ad_handle, "_CRS",
+ &res, &acpi_resource_parse_ops_default);
+ if (ACPI_FAILURE(rv))
+ return;
+
+ irq = acpi_res_irq(&res, 0);
+ if (irq == NULL) {
+ aprint_error_dev(self, "couldn't find irq resource\n");
+ goto done;
+ }
+
+ asc->sc_isc.sc_dev = self;
+
+ asc->sc_isc.sc_bst = aa->aa_memt;
+ for (nbar = 0; acpi_res_mem(&res, nbar); nbar++);
+ asc->sc_isc.sc_nbar = nbar;
+ asc->sc_isc.sc_base =
+ kmem_zalloc(sizeof(*asc->sc_isc.sc_base) * nbar, KM_SLEEP);
+ asc->sc_isc.sc_length =
+ kmem_zalloc(sizeof(*asc->sc_isc.sc_length) * nbar, KM_SLEEP);
+ asc->sc_isc.sc_bsh =
+ kmem_zalloc(sizeof(*asc->sc_isc.sc_bsh) * nbar, KM_SLEEP);
+
+ asc->sc_isc.sc_acpi_hid = ad->HardwareId.String;
+
+ for (i = 0; i < nbar; i++) {
+ mem = acpi_res_mem(&res, i);
+ if (mem == NULL) {
+ aprint_error_dev(self, "couldn't find mem resource\n");
+ goto done;
+ }
+
+ asc->sc_isc.sc_base[i] = mem->ar_base;
+ asc->sc_isc.sc_length[i] = mem->ar_length;
+ }
+
+ igpio_attach(&asc->sc_isc);
+
+ /* If attachement failed */
+ if (asc->sc_isc.sc_banks == NULL) {
+ igpio_acpi_detach(self, 0);
+ goto done;
+ }
+
+ rv = acpi_event_create_gpio(self, asc->sc_handle, igpio_acpi_register_event, asc);
+ if (ACPI_FAILURE(rv)) {
+ if (rv != AE_NOT_FOUND)
+ aprint_error_dev(self, "failed to create events: %s\n", AcpiFormatException(rv));
+ goto done;
+ }
+
+ asc->sc_intr = acpi_intr_establish(self,
+ (uint64_t)(uintptr_t)asc->sc_handle,
+ IPL_VM, false, igpio_acpi_intr, asc, device_xname(self));
+ if (asc->sc_intr == NULL)
+ aprint_error_dev(self, "couldn't establish interrupt\n");
+
+done:
+ acpi_resource_cleanup(&res);
+ (void)pmf_device_register(self, NULL, NULL);
+ asc->sc_pmf = 1;
+}
+
+static int
+igpio_acpi_detach(device_t self, int flags)
+{
+ struct igpio_acpi_softc * const asc = device_private(self);
+ struct igpio_softc * const isc = &asc->sc_isc;
+ int nbar = isc->sc_nbar;
+
+ acpi_intr_disestablish(asc->sc_intr);
+
+ igpio_detach(&asc->sc_isc);
+
+ if (isc->sc_base != NULL) {
+ kmem_free(isc->sc_base, sizeof(*isc->sc_base) * nbar);
+ isc->sc_base = NULL;
+ }
+
+ if (isc->sc_length != NULL) {
+ kmem_free(isc->sc_length, sizeof(*isc->sc_length) * nbar);
+ isc->sc_length = NULL;
+ }
+
+ if (isc->sc_bsh != NULL) {
+ kmem_free(isc->sc_bsh, sizeof(*isc->sc_bsh) * nbar);
+ isc->sc_length = NULL;
+ }
+
+ if (asc->sc_pmf) {
+ pmf_device_deregister(self);
+ asc->sc_pmf = 0;
+ }
+
+ return 0;
+}
+
+static void
+igpio_acpi_register_event(void *priv, struct acpi_event *ev, ACPI_RESOURCE_GPIO *gpio)
+{
+ return;
+}
+
+static int
+igpio_acpi_intr(void *priv)
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