mirror/freebsd
1
0
Fork 0
mirror of https://git.FreeBSD.org/src.git synced 2024-12-11 09:50:12 +00:00
Code Issues Releases Activity

Add a driver for the 'clock-board' device (the clock board is an

Browse Source 
inevitable component in Sun Exx00 machines and provides serial ports,
NVRAM and TOD amongst others which are handled by uart(4) and eeprom(4)
respectively). This driver currently only prints out information about
the chassis on attach and allows to blink the 'Cycling' LED (which is
duplicated on the front panel) of the clock board just like fhc(4) does
for the other boards. The device name for the LED is /dev/led/clockboard.

Obtained from:	OpenBSD
Tested by:	joerg
This commit is contained in:
Marius Strobl 2005-03-19 01:04:48 +00:00
parent 771997501f
commit be7a88bd72
Notes: svn2git 2020-12-20 02:59:44 +00:00 
svn path=/head/; revision=143827
5 changed files with 262 additions and 0 deletions
Show Stats Download Patch File Download Diff File Expand all files Collapse all files

1
sys/conf/files.sparc64
View File

@ -50,6 +50,7 @@ libkern/flsl.c standard
sparc64/central/central.c optional central
sparc64/creator/creator_upa.c optional creator sc
sparc64/ebus/ebus.c optional ebus
sparc64/fhc/clkbrd.c optional clkbrd fhc
sparc64/fhc/fhc.c optional fhc
sparc64/fhc/fhc_central.c optional fhc central
sparc64/fhc/fhc_nexus.c optional fhc

1
sys/sparc64/conf/GENERIC
View File

@ -127,6 +127,7 @@ device ses # SCSI Environmental Services (and SAF-TE)
# Builtin hardware
device auxio # auxiliary I/O device
device clkbrd # Clock Board (blinkenlight on Sun Exx00)
device genclock # Generic clock interface
device eeprom # eeprom (really a front-end for the MK48Txx)
device mk48txx # Mostek MK48Txx clocks

1
sys/sparc64/conf/NOTES
View File

@ -50,6 +50,7 @@ device mc146818 # Motorola MC146818 and compatible clocks
#
device auxio # auxiliary I/O device
device clkbrd # Clock Board (blinkenlight on Sun Exx00)
device creator # Creator, Creator3D and Elite3D graphics cards
device ofw_console # Open Firmware console device

212
sys/sparc64/fhc/clkbrd.c Normal file
View File

@ -0,0 +1,212 @@
/*-
* Copyright (c) 2004 Jason L. Wright (jason@thought.net)
* Copyright (c) 2005 Marius Strobl <marius@FreeBSD.org>
* 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 AUTHOR ``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 AUTHOR 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.
*
* from: OpenBSD: clkbrd.c,v 1.5 2004/10/01 18:18:49 jason Exp
*/
#include <sys/cdefs.h>
__FBSDID("$FreeBSD$");
#include <sys/param.h>
#include <sys/systm.h>
#include <sys/kernel.h>
#include <sys/module.h>
#include <sys/resource.h>
#include <sys/rman.h>
#include <dev/led/led.h>
#include <dev/ofw/ofw_bus.h>
#include <machine/bus.h>
#include <machine/resource.h>
#include <sparc64/fhc/clkbrdreg.h>
#define CLKBRD_NREG 3
#define CLKBRD_CF 0
#define CLKBRD_CLK 1
#define CLKBRD_CLKVER 2
struct clkbrd_softc {
struct device *sc_dev;
struct resource *sc_res[CLKBRD_NREG];
int sc_rid[CLKBRD_NREG];
bus_space_tag_t sc_bt[CLKBRD_NREG];
bus_space_handle_t sc_bh[CLKBRD_NREG];
uint8_t sc_clk_ctrl;
struct cdev *sc_led_dev;
int sc_flags;
#define CLKBRD_HAS_CLKVER (1 << 0)
};
static devclass_t clkbrd_devclass;
static device_probe_t clkbrd_probe;
static device_attach_t clkbrd_attach;
static device_detach_t clkbrd_detach;
static void clkbrd_free_resources(struct clkbrd_softc *);
static void clkbrd_led_func(void *, int);
static device_method_t clkbrd_methods[] = {
/* Device interface */
DEVMETHOD(device_probe, clkbrd_probe),
DEVMETHOD(device_attach, clkbrd_attach),
DEVMETHOD(device_detach, clkbrd_detach),
{ 0, 0 }
};
static driver_t clkbrd_driver = {
"clkbrd",
clkbrd_methods,
sizeof(struct clkbrd_softc),
};
DRIVER_MODULE(clkbrd, fhc, clkbrd_driver, clkbrd_devclass, 0, 0);
static int
clkbrd_probe(device_t dev)
{
if (strcmp(ofw_bus_get_name(dev), "clock-board") == 0) {
device_set_desc(dev, "Clock Board");
return (0);
}
return (ENXIO);
}
static int
clkbrd_attach(device_t dev)
{
struct clkbrd_softc *sc;
int i, slots;
uint8_t r;
sc = device_get_softc(dev);
bzero(sc, sizeof(struct clkbrd_softc));
sc->sc_dev = dev;
for (i = CLKBRD_CF; i <= CLKBRD_CLKVER; i++) {
sc->sc_rid[i] = i;
sc->sc_res[i] = bus_alloc_resource_any(sc->sc_dev,
SYS_RES_MEMORY, &sc->sc_rid[i], RF_ACTIVE);
if (sc->sc_res[i] == NULL) {
if (i != CLKBRD_CLKVER) {
device_printf(sc->sc_dev,
"could not allocate resource %d\n", i);
goto fail;
}
continue;
}
sc->sc_bt[i] = rman_get_bustag(sc->sc_res[i]);
sc->sc_bh[i] = rman_get_bushandle(sc->sc_res[i]);
if (i == CLKBRD_CLKVER)
sc->sc_flags |= CLKBRD_HAS_CLKVER;
}
slots = 4;
r = bus_space_read_1(sc->sc_bt[CLKBRD_CLK], sc->sc_bh[CLKBRD_CLK],
CLK_STS1);
switch (r & 0xc0) {
case 0x40:
slots = 16;
break;
case 0xc0:
slots = 8;
break;
case 0x80:
if (sc->sc_flags & CLKBRD_HAS_CLKVER) {
r = bus_space_read_1(sc->sc_bt[CLKBRD_CLKVER],
sc->sc_bh[CLKBRD_CLKVER], 0);
if (r != 0 && (r & 0x80) == 0)
slots = 5;
}
}
device_printf(sc->sc_dev, "Sun Enterprise Exx00 machine: %d slots\n",
slots);
sc->sc_clk_ctrl = bus_space_read_1(sc->sc_bt[CLKBRD_CLK],
sc->sc_bh[CLKBRD_CLK], CLK_CTRL);
sc->sc_led_dev = led_create(clkbrd_led_func, sc, "clockboard");
return (0);
fail:
clkbrd_free_resources(sc);
return (ENXIO);
}
static int
clkbrd_detach(device_t dev)
{
struct clkbrd_softc *sc;
sc = device_get_softc(dev);
led_destroy(sc->sc_led_dev);
bus_space_write_1(sc->sc_bt[CLKBRD_CLK], sc->sc_bh[CLKBRD_CLK],
CLK_CTRL, sc->sc_clk_ctrl);
bus_space_read_1(sc->sc_bt[CLKBRD_CLK], sc->sc_bh[CLKBRD_CLK],
CLK_CTRL);
clkbrd_free_resources(sc);
return (0);
}
static void
clkbrd_free_resources(struct clkbrd_softc *sc)
{
int i;
for (i = CLKBRD_CF; i <= CLKBRD_CLKVER; i++)
if (sc->sc_res[i] != NULL)
bus_release_resource(sc->sc_dev, SYS_RES_MEMORY,
sc->sc_rid[i], sc->sc_res[i]);
}
static void
clkbrd_led_func(void *arg, int onoff)
{
struct clkbrd_softc *sc;
uint8_t r;
sc = (struct clkbrd_softc *)arg;
r = bus_space_read_1(sc->sc_bt[CLKBRD_CLK], sc->sc_bh[CLKBRD_CLK],
CLK_CTRL);
if (onoff)
r |= CLK_CTRL_RLED;
else
r &= ~CLK_CTRL_RLED;
bus_space_write_1(sc->sc_bt[CLKBRD_CLK], sc->sc_bh[CLKBRD_CLK],
CLK_CTRL, r);
bus_space_read_1(sc->sc_bt[CLKBRD_CLK], sc->sc_bh[CLKBRD_CLK],
CLK_CTRL);
}

47
sys/sparc64/fhc/clkbrdreg.h Normal file
View File

@ -0,0 +1,47 @@
/*-
* Copyright (c) 2004 Jason L. Wright (jason@thought.net)
* 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 AUTHOR ``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 AUTHOR 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.
*
* from: OpenBSD: clkbrdreg.h,v 1.2 2004/10/01 15:36:30 jason Exp
*
* $FreeBSD$
*/
#define CLK_CTRL 0x00
#define CLK_STS1 0x10
#define CLK_STS2 0x20
#define CLK_PSTS1 0x30
#define CLK_PPRES 0x40
#define CLK_TEMP 0x50
#define CLK_IRQ 0x60
#define CLK_PSTS2 0x70
#define CLK_CTRL_IEN_FAN 0x80 /* intr enable: fan failure */
#define CLK_CTRL_IEN_DC 0x40 /* intr enable: pwr supply DC */
#define CLK_CTRL_IEN_AC 0x20 /* intr enable: AC pwr supply */
#define CLK_CTRL_IEN_BRD 0x10 /* intr enable: board insert */
#define CLK_CTRL_POFF 0x08 /* turn off system power */
#define CLK_CTRL_LLED 0x04 /* left led (reversed) */
#define CLK_CTRL_MLED 0x02 /* middle led */
#define CLK_CTRL_RLED 0x01 /* right led */