diff options
author | Damien Zammit <damien@zamaudio.com> | 2021-04-03 21:19:33 +1100 |
---|---|---|
committer | Damien Zammit <damien@zamaudio.com> | 2021-04-03 23:06:21 +1100 |
commit | 53fdd2f6649640ee981be45c727ec0e8e885fb96 (patch) | |
tree | 85a173615c346b4ea7989c46ea779ca4789af207 /acpi | |
parent | 4f5eb7074e6ecbe8e53552a7f516923bfb75724e (diff) |
acpi: Add new RPCsacpica-integrate
Diffstat (limited to 'acpi')
-rw-r--r-- | acpi/Makefile | 15 | ||||
-rw-r--r-- | acpi/acpi-ops.c | 146 | ||||
-rw-r--r-- | acpi/acpi.h | 6 | ||||
-rw-r--r-- | acpi/main.c | 4 | ||||
-rw-r--r-- | acpi/mig-mutate.h | 28 |
5 files changed, 197 insertions, 2 deletions
diff --git a/acpi/Makefile b/acpi/Makefile index 49c8ba9a..cc55a9f5 100644 --- a/acpi/Makefile +++ b/acpi/Makefile @@ -21,7 +21,9 @@ makemode = server PORTDIR = $(srcdir)/port SRCS = main.c netfs_impl.c acpi.c \ - acpifs.c ncache.c options.c func_files.c + acpifs.c ncache.c options.c func_files.c acpi-ops.c \ + acpiServer.c + MIGSRCS = OBJS = $(patsubst %.S,%.o,$(patsubst %.c,%.o, $(SRCS) $(MIGSRCS))) @@ -33,3 +35,14 @@ target = acpi include ../Makeconf CFLAGS += -I$(PORTDIR)/include + +acpi-MIGSFLAGS = -imacros $(srcdir)/mig-mutate.h + +# cpp doesn't automatically make dependencies for -imacros dependencies. argh. +acpi_S.h acpiServer.c: mig-mutate.h + cat ../../hurd/acpi.defs \ + | ${CC} -E -x c - -o - -imacros ../../acpi/mig-mutate.h \ + | mig -cc cat - /dev/null -prefix S_ -subrprefix __ \ + -user /dev/null \ + -server acpiServer.c \ + -sheader acpi_S.h diff --git a/acpi/acpi-ops.c b/acpi/acpi-ops.c new file mode 100644 index 00000000..d9795e87 --- /dev/null +++ b/acpi/acpi-ops.c @@ -0,0 +1,146 @@ +/* + Copyright (C) 2021 Free Software Foundation, Inc. + + This file is part of the GNU Hurd. + + The GNU Hurd is free software; you can redistribute it and/or + modify it under the terms of the GNU General Public License as + published by the Free Software Foundation; either version 2, or (at + your option) any later version. + + The GNU Hurd is distributed in the hope that it will be useful, but + WITHOUT ANY WARRANTY; without even the implied warranty of + MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU + General Public License for more details. + + You should have received a copy of the GNU General Public License + along with the GNU Hurd. If not, see <http://www.gnu.org/licenses/>. +*/ + +/* Implementation of ACPI operations */ + +#include <acpi_S.h> + +#include <stdio.h> +#include <fcntl.h> +#include <sys/mman.h> +#include <sys/io.h> + +#include "libacpica/acpi_init.h" +#include "acpifs.h" + +static error_t +check_permissions (struct protid *master, int flags) +{ + struct node *node; + struct acpifs_dirent *e; + + node = master->po->np; + e = node->nn->ln; + + /* Check whether the user has permissions to access this node */ + return entry_check_perms (master->user, e, flags); +} + +static void +acpi_enable(struct acpi_table *facp) +{ + int i; + uint8_t *ptr = (uint8_t *)&facp->data; + + /* Grab value to write to SMI_CMD to enable ACPI */ + uint8_t acpi_en = ptr[SMI_EN_OFFSET]; + uint16_t smi_cmd = (uint16_t)ptr[SMI_CMD_OFFSET] | ((uint16_t)ptr[SMI_CMD_OFFSET+1] << 8); + uint16_t pm1a_ctl = (uint16_t)ptr[PM1A_CTL_OFFSET] | ((uint16_t)ptr[PM1A_CTL_OFFSET+1] << 8); + + /* Get I/O permissions */ + if (ioperm(smi_cmd, 2, 1)) + { + fprintf(stderr, "EPERM on ioperm(smi_cmd)\n"); + return; + } + + if (ioperm(pm1a_ctl, 2, 1)) + { + fprintf(stderr, "EPERM on ioperm(pm1a_ctl)\n"); + return; + } + + /* Enable ACPI */ + outb(acpi_en, smi_cmd); + for (i = 0; i < 300; i++) + { + if ((inw(pm1a_ctl) & SCI_EN) == SCI_EN) + break; + } + + /* Drop I/O permissions */ + ioperm(smi_cmd, 2, 0); + ioperm(pm1a_ctl, 2, 0); +} + +error_t +S_acpi_sleep (struct protid *master, int sleep_state) +{ + error_t err; + struct acpifs_dirent *e; + + if (!master) + return EOPNOTSUPP; + + e = master->po->np->nn->ln; + if (strncmp (e->name, "FACP", 4)) + /* This operation may only be addressed to the FADT table */ + return EINVAL; + + err = check_permissions (master, O_READ); + if (err) + return err; + + /* Enable ACPI */ + acpi_enable(e->acpitable); + + /* Perform sleep */ + acpi_enter_sleep(sleep_state); + + /* Never reached */ + return err; +} + +error_t +S_acpi_enable (struct protid *master) +{ + error_t err; + struct acpifs_dirent *e; + + if (!master) + return EOPNOTSUPP; + + e = master->po->np->nn->ln; + if (strncmp (e->name, "FACP", 4)) + /* This operation may only be addressed to the FADT table */ + return EINVAL; + + err = check_permissions (master, O_READ); + if (err) + return err; + + acpi_enable(e->acpitable); + return err; +} + +error_t +S_acpi_get_irq (struct protid *master, int bus, int dev, int func, int *irq) +{ + error_t err; + + if (!master) + return EOPNOTSUPP; + + err = check_permissions (master, O_READ); + if (err) + return err; + + *irq = acpi_get_irq_number(bus, dev, func); + return err; +} diff --git a/acpi/acpi.h b/acpi/acpi.h index 7c21a442..bb56ff76 100644 --- a/acpi/acpi.h +++ b/acpi/acpi.h @@ -29,6 +29,12 @@ #define ESCD 0xe0000U #define RSDP_MAGIC (const unsigned char *)"RSD PTR " #define ESCD_SIZE 0x20000U +#define SLP_EN (0x1 << 13) +#define SCI_EN 1 +#define SMI_CMD_OFFSET 12 +#define SMI_EN_OFFSET 16 +#define PM1A_CTL_OFFSET 28 +#define PM1B_CTL_OFFSET 32 struct rsdp_descr { diff --git a/acpi/main.c b/acpi/main.c index 5b879e3f..90dc6580 100644 --- a/acpi/main.c +++ b/acpi/main.c @@ -26,6 +26,7 @@ #include <argp.h> #include <hurd/netfs.h> +#include "acpi_S.h" #include "libnetfs/io_S.h" #include "libnetfs/fs_S.h" #include "libports/notify_S.h" @@ -54,7 +55,8 @@ netfs_demuxer (mach_msg_header_t * inp, mach_msg_header_t * outp) (routine = ports_notify_server_routine (inp)) || (routine = netfs_fsys_server_routine (inp)) || (routine = ports_interrupt_server_routine (inp)) || - (routine = netfs_ifsock_server_routine (inp))) + (routine = netfs_ifsock_server_routine (inp)) || + (routine = S_acpi_server_routine (inp))) { (*routine) (inp, outp); return TRUE; diff --git a/acpi/mig-mutate.h b/acpi/mig-mutate.h new file mode 100644 index 00000000..1ee33e5f --- /dev/null +++ b/acpi/mig-mutate.h @@ -0,0 +1,28 @@ +/* + Copyright (C) 2017 Free Software Foundation, Inc. + Written by Michael I. Bushnell, p/BSG. + + This file is part of the GNU Hurd. + + The GNU Hurd is free software; you can redistribute it and/or + modify it under the terms of the GNU General Public License as + published by the Free Software Foundation; either version 2, or (at + your option) any later version. + + The GNU Hurd is distributed in the hope that it will be useful, but + WITHOUT ANY WARRANTY; without even the implied warranty of + MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU + General Public License for more details. + + You should have received a copy of the GNU General Public License + along with the GNU Hurd. If not, see <http://www.gnu.org/licenses/>. +*/ + +/* Only CPP macro definitions should go in this file. */ + +#define ACPI_IMPORTS \ + import "../libnetfs/priv.h"; \ + +#define ACPI_INTRAN protid_t begin_using_protid_port (acpi_t) +#define ACPI_INTRAN_PAYLOAD protid_t begin_using_protid_payload +#define ACPI_DESTRUCTOR end_using_protid_port (protid_t) |