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[src/trunk]: src/sys/arch/arm/sociox try to show 32 GPIO line usage
details: https://anonhg.NetBSD.org/src/rev/6d3199aaad66
branches: trunk
changeset: 746210:6d3199aaad66
user: nisimura <nisimura%NetBSD.org@localhost>
date: Tue Mar 24 11:40:08 2020 +0000
description:
try to show 32 GPIO line usage
diffstat:
sys/arch/arm/sociox/sni_gpio.c | 99 ++++++++++++++++++++++++++++++-----------
1 files changed, 72 insertions(+), 27 deletions(-)
diffs (192 lines):
diff -r 4d5a80262b96 -r 6d3199aaad66 sys/arch/arm/sociox/sni_gpio.c
--- a/sys/arch/arm/sociox/sni_gpio.c Tue Mar 24 11:26:21 2020 +0000
+++ b/sys/arch/arm/sociox/sni_gpio.c Tue Mar 24 11:40:08 2020 +0000
@@ -1,4 +1,4 @@
-/* $NetBSD: sni_gpio.c,v 1.2 2020/03/19 20:53:53 nisimura Exp $ */
+/* $NetBSD: sni_gpio.c,v 1.3 2020/03/24 11:40:08 nisimura Exp $ */
/*-
* Copyright (c) 2020 The NetBSD Foundation, Inc.
@@ -34,7 +34,7 @@
*/
#include <sys/cdefs.h>
-__KERNEL_RCSID(0, "$NetBSD: sni_gpio.c,v 1.2 2020/03/19 20:53:53 nisimura Exp $");
+__KERNEL_RCSID(0, "$NetBSD: sni_gpio.c,v 1.3 2020/03/24 11:40:08 nisimura Exp $");
#include <sys/param.h>
#include <sys/device.h>
@@ -64,6 +64,7 @@
bus_space_handle_t sc_ioh;
bus_addr_t sc_iob;
bus_size_t sc_ios;
+ void *sc_ih;
kmutex_t sc_lock;
struct gpio_chipset_tag sc_gpio_gc;
gpio_pin_t sc_gpio_pins[32];
@@ -77,7 +78,19 @@
CFATTACH_DECL_NEW(snigpio_acpi, sizeof(struct snigpio_softc),
snigpio_acpi_match, snigpio_acpi_attach, NULL, NULL);
+/*
+ * "DevelopmentBox" implementation
+ * DSW3-PIN1, DSW3-PIN2, DSW3-PIN3, DSW3-PIN4,
+ * DSW3-PIN5, DSW3-PIN6, DSW3-PIN7, DSW3-PIN8,
+ * PEC-PD8, PEC-PD9, PEC-PD10, PEC-PD11,
+ * NC, NC, PCIE1EXTINT, PCIE0EXTINT,
+ * PHY_P2_2, PHY_P1_2, NC, NC,
+ * NC, NC, NC, NC,
+ * NC, NC, PEC-PD26, PEC-PD27,
+ * PEC-PD28, PEC-PD29, PEC-PD30, PEC-PD31;
+ */
static void snigpio_attach_i(struct snigpio_softc *);
+static int snigpio_intr(void *);
static int
snigpio_fdt_match(device_t parent, struct cfdata *match, void *aux)
@@ -102,8 +115,8 @@
bus_space_handle_t ioh;
bus_addr_t addr;
bus_size_t size;
+ char intrstr[128];
_Bool disable;
- int error;
prop_dictionary_get_bool(dict, "disable", &disable);
if (disable) {
@@ -111,16 +124,25 @@
aprint_normal(": disabled\n");
return;
}
- error = fdtbus_get_reg(phandle, 0, &addr, &size);
- if (error) {
- aprint_error(": couldn't get registers\n");
- return;
- }
- error = bus_space_map(faa->faa_bst, addr, size, 0, &ioh);
- if (error) {
+ if (fdtbus_get_reg(phandle, 0, &addr, &size) != 0
+ || bus_space_map(faa->faa_bst, addr, size, 0, &ioh) != 0) {
aprint_error(": unable to map device\n");
return;
}
+ if (!fdtbus_intr_str(phandle, 0, intrstr, sizeof(intrstr))) {
+ aprint_error(": failed to decode interrupt\n");
+ goto fail;
+ }
+ sc->sc_ih = fdtbus_intr_establish(phandle,
+ 0, IPL_VM, 0, snigpio_intr, sc);
+ if (sc->sc_ih == NULL) {
+ aprint_error_dev(self, "couldn't establish interrupt\n");
+ goto fail;
+ }
+
+ aprint_naive("\n");
+ aprint_normal(": GPIO controller\n");
+ aprint_normal_dev(self, "interrupting on %s\n", intrstr);
sc->sc_dev = self;
sc->sc_phandle = phandle;
@@ -131,7 +153,13 @@
snigpio_attach_i(sc);
+/* dig FDT description to show 32 of GPIO line usage */
+/* DIPSW3 1-8 usage remain unclear */
+
return;
+ fail:
+ bus_space_unmap(sc->sc_iot, sc->sc_ioh, sc->sc_ios);
+ return;
}
static int
@@ -163,22 +191,24 @@
&res, &acpi_resource_parse_ops_default);
if (ACPI_FAILURE(rv))
return;
-
mem = acpi_res_mem(&res, 0);
irq = acpi_res_irq(&res, 0);
- if (mem == NULL || irq == NULL) {
+ if (mem == NULL || irq == NULL || mem->ar_length == 0) {
aprint_error(": incomplete resources\n");
return;
}
- if (mem->ar_length == 0) {
- aprint_error(": zero length memory resource\n");
- return;
- }
if (bus_space_map(aa->aa_memt, mem->ar_base, mem->ar_length, 0,
&ioh)) {
aprint_error(": couldn't map registers\n");
return;
}
+ sc->sc_ih = acpi_intr_establish(self,
+ (uint64_t)(uintptr_t)aa->aa_node->ad_handle,
+ IPL_VM, false, snigpio_intr, sc, device_xname(self));
+ if (sc->sc_ih == NULL) {
+ aprint_error_dev(self, "couldn't establish interrupt\n");
+ goto fail;
+ }
sc->sc_dev = self;
sc->sc_iot = aa->aa_memt;
@@ -186,31 +216,46 @@
sc->sc_ios = mem->ar_length;
snigpio_attach_i(sc);
+
+/* dig _DSD property to show 32 of GPIO line usage */
+/* DIPSW3 1-8 usage remain unclear */
+
+ acpi_resource_cleanup(&res);
+ return;
+ fail:
+ acpi_resource_cleanup(&res);
+ bus_space_unmap(sc->sc_iot, sc->sc_ioh, sc->sc_ios);
+ return;
}
static void
snigpio_attach_i(struct snigpio_softc *sc)
{
+ struct gpio_chipset_tag *gc;
struct gpiobus_attach_args gba;
- aprint_naive(": GPIO controller\n");
- aprint_normal(": GPIO controller\n");
-
mutex_init(&sc->sc_lock, MUTEX_DEFAULT, IPL_VM);
sc->sc_maxpins = 32;
/* create controller tag */
- sc->sc_gpio_gc.gp_cookie = sc;
- sc->sc_gpio_gc.gp_pin_read = NULL; /* AAA */
- sc->sc_gpio_gc.gp_pin_write = NULL; /* AAA */
- sc->sc_gpio_gc.gp_pin_ctl = NULL; /* AAA */
- sc->sc_gpio_gc.gp_intr_establish = NULL; /* AAA */
- sc->sc_gpio_gc.gp_intr_disestablish = NULL; /* AAA */
- sc->sc_gpio_gc.gp_intr_str = NULL; /* AAA */
+ gc = &sc->sc_gpio_gc;
+ gc->gp_cookie = sc;
+ gc->gp_pin_read = NULL; /* AAA */
+ gc->gp_pin_write = NULL; /* AAA */
+ gc->gp_pin_ctl = NULL; /* AAA */
+ gc->gp_intr_establish = NULL; /* AAA */
+ gc->gp_intr_disestablish = NULL; /* AAA */
+ gc->gp_intr_str = NULL; /* AAA */
- gba.gba_gc = &sc->sc_gpio_gc;
+ gba.gba_gc = gc;
gba.gba_pins = &sc->sc_gpio_pins[0];
gba.gba_npins = sc->sc_maxpins;
(void) config_found_ia(sc->sc_dev, "gpiobus", &gba, gpiobus_print);
}
+
+static int
+snigpio_intr(void *arg)
+{
+ return 1;
+}
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