Skip to content

Commit

Permalink
---
Browse files Browse the repository at this point in the history 
yaml
---
r: 113081
b: refs/heads/master
c: 5843492
h: refs/heads/master
i:
  113079: 1330d26
v: v3
  • Loading branch information
David S. Miller committed Sep 1, 2008
1 parent 3b02724 commit 639da4b
Show file tree
Hide file tree
Showing 4 changed files with 283 additions and 1 deletion.
2 changes: 1 addition & 1 deletion [refs]
View file
Original file line number Diff line number Diff line change
@@ -1,2 +1,2 @@
---
refs/heads/master: 10d29ff9070caf5810d37ab06e30f7acad278f1e
refs/heads/master: 5843492ccce3568ff6eb6efc52fb793923207d0b
8 changes: 8 additions & 0 deletions trunk/drivers/leds/Kconfig
View file
Original file line number Diff line number Diff line change
Expand Up @@ -96,6 +96,14 @@ config LEDS_COBALT_RAQ
help
This option enables support for the Cobalt Raq series LEDs.

config LEDS_SUNFIRE
tristate "LED support for SunFire servers."
depends on LEDS_CLASS && SPARC64
select LEDS_TRIGGERS
help
This option enables support for the Left, Middle, and Right
LEDs on the I/O and CPU boards of SunFire UltraSPARC servers.

config LEDS_HP6XX
tristate "LED Support for the HP Jornada 6xx"
depends on LEDS_CLASS && SH_HP6XX
Expand Down
1 change: 1 addition & 0 deletions trunk/drivers/leds/Makefile
View file
Original file line number Diff line number Diff line change
Expand Up @@ -16,6 +16,7 @@ obj-$(CONFIG_LEDS_WRAP) += leds-wrap.o
obj-$(CONFIG_LEDS_H1940) += leds-h1940.o
obj-$(CONFIG_LEDS_COBALT_QUBE) += leds-cobalt-qube.o
obj-$(CONFIG_LEDS_COBALT_RAQ) += leds-cobalt-raq.o
obj-$(CONFIG_LEDS_SUNFIRE) += leds-sunfire.o
obj-$(CONFIG_LEDS_PCA9532) += leds-pca9532.o
obj-$(CONFIG_LEDS_GPIO) += leds-gpio.o
obj-$(CONFIG_LEDS_CM_X270) += leds-cm-x270.o
Expand Down
273 changes: 273 additions & 0 deletions trunk/drivers/leds/leds-sunfire.c
View file
Original file line number Diff line number Diff line change
@@ -0,0 +1,273 @@
/* leds-sunfire.c: SUNW,Ultra-Enterprise LED driver.
*
* Copyright (C) 2008 David S. Miller <davem@davemloft.net>
*/

#include <linux/kernel.h>
#include <linux/module.h>
#include <linux/init.h>
#include <linux/leds.h>
#include <linux/io.h>
#include <linux/platform_device.h>

#include <asm/fhc.h>
#include <asm/upa.h>

#define DRIVER_NAME "leds-sunfire"
#define PFX DRIVER_NAME ": "

MODULE_AUTHOR("David S. Miller (davem@davemloft.net)");
MODULE_DESCRIPTION("Sun Fire LED driver");
MODULE_LICENSE("GPL");

struct sunfire_led {
struct led_classdev led_cdev;
void __iomem *reg;
};
#define to_sunfire_led(d) container_of(d, struct sunfire_led, led_cdev)

static void __clockboard_set(struct led_classdev *led_cdev,
enum led_brightness led_val, u8 bit)
{
struct sunfire_led *p = to_sunfire_led(led_cdev);
u8 reg = upa_readb(p->reg);

switch (bit) {
case CLOCK_CTRL_LLED:
if (led_val)
reg &= ~bit;
else
reg |= bit;
break;

default:
if (led_val)
reg |= bit;
else
reg &= ~bit;
break;
}
upa_writeb(reg, p->reg);
}

static void clockboard_left_set(struct led_classdev *led_cdev,
enum led_brightness led_val)
{
__clockboard_set(led_cdev, led_val, CLOCK_CTRL_LLED);
}

static void clockboard_middle_set(struct led_classdev *led_cdev,
enum led_brightness led_val)
{
__clockboard_set(led_cdev, led_val, CLOCK_CTRL_MLED);
}

static void clockboard_right_set(struct led_classdev *led_cdev,
enum led_brightness led_val)
{
__clockboard_set(led_cdev, led_val, CLOCK_CTRL_RLED);
}

static void __fhc_set(struct led_classdev *led_cdev,
enum led_brightness led_val, u32 bit)
{
struct sunfire_led *p = to_sunfire_led(led_cdev);
u32 reg = upa_readl(p->reg);

switch (bit) {
case FHC_CONTROL_LLED:
if (led_val)
reg &= ~bit;
else
reg |= bit;
break;

default:
if (led_val)
reg |= bit;
else
reg &= ~bit;
break;
}
upa_writel(reg, p->reg);
}

static void fhc_left_set(struct led_classdev *led_cdev,
enum led_brightness led_val)
{
__fhc_set(led_cdev, led_val, FHC_CONTROL_LLED);
}

static void fhc_middle_set(struct led_classdev *led_cdev,
enum led_brightness led_val)
{
__fhc_set(led_cdev, led_val, FHC_CONTROL_MLED);
}

static void fhc_right_set(struct led_classdev *led_cdev,
enum led_brightness led_val)
{
__fhc_set(led_cdev, led_val, FHC_CONTROL_RLED);
}

typedef void (*set_handler)(struct led_classdev *, enum led_brightness);
struct led_type {
const char *name;
set_handler handler;
const char *default_trigger;
};

#define NUM_LEDS_PER_BOARD 3
struct sunfire_drvdata {
struct sunfire_led leds[NUM_LEDS_PER_BOARD];
};

static int __devinit sunfire_led_generic_probe(struct platform_device *pdev,
struct led_type *types)
{
struct sunfire_drvdata *p;
int i, err = -EINVAL;

if (pdev->num_resources != 1) {
printk(KERN_ERR PFX "Wrong number of resources %d, should be 1\n",
pdev->num_resources);
goto out;
}

p = kzalloc(sizeof(*p), GFP_KERNEL);
if (!p) {
printk(KERN_ERR PFX "Could not allocate struct sunfire_drvdata\n");
goto out;
}

for (i = 0; i < NUM_LEDS_PER_BOARD; i++) {
struct led_classdev *lp = &p->leds[i].led_cdev;

p->leds[i].reg = (void __iomem *) pdev->resource[0].start;
lp->name = types[i].name;
lp->brightness = LED_FULL;
lp->brightness_set = types[i].handler;
lp->default_trigger = types[i].default_trigger;

err = led_classdev_register(&pdev->dev, lp);
if (err) {
printk(KERN_ERR PFX "Could not register %s LED\n",
lp->name);
goto out_unregister_led_cdevs;
}
}

dev_set_drvdata(&pdev->dev, p);

err = 0;
out:
return err;

out_unregister_led_cdevs:
for (i--; i >= 0; i--)
led_classdev_unregister(&p->leds[i].led_cdev);
goto out;
}

static int __devexit sunfire_led_generic_remove(struct platform_device *pdev)
{
struct sunfire_drvdata *p = dev_get_drvdata(&pdev->dev);
int i;

for (i = 0; i < NUM_LEDS_PER_BOARD; i++)
led_classdev_unregister(&p->leds[i].led_cdev);

kfree(p);

return 0;
}

static struct led_type clockboard_led_types[NUM_LEDS_PER_BOARD] = {
{
.name = "clockboard-left",
.handler = clockboard_left_set,
},
{
.name = "clockboard-middle",
.handler = clockboard_middle_set,
},
{
.name = "clockboard-right",
.handler = clockboard_right_set,
.default_trigger= "heartbeat",
},
};

static int __devinit sunfire_clockboard_led_probe(struct platform_device *pdev)
{
return sunfire_led_generic_probe(pdev, clockboard_led_types);
}

static struct led_type fhc_led_types[NUM_LEDS_PER_BOARD] = {
{
.name = "fhc-left",
.handler = fhc_left_set,
},
{
.name = "fhc-middle",
.handler = fhc_middle_set,
},
{
.name = "fhc-right",
.handler = fhc_right_set,
.default_trigger= "heartbeat",
},
};

static int __devinit sunfire_fhc_led_probe(struct platform_device *pdev)
{
return sunfire_led_generic_probe(pdev, fhc_led_types);
}

MODULE_ALIAS("platform:sunfire-clockboard-leds");
MODULE_ALIAS("platform:sunfire-fhc-leds");

static struct platform_driver sunfire_clockboard_led_driver = {
.probe = sunfire_clockboard_led_probe,
.remove = __devexit_p(sunfire_led_generic_remove),
.driver = {
.name = "sunfire-clockboard-leds",
.owner = THIS_MODULE,
},
};

static struct platform_driver sunfire_fhc_led_driver = {
.probe = sunfire_fhc_led_probe,
.remove = __devexit_p(sunfire_led_generic_remove),
.driver = {
.name = "sunfire-fhc-leds",
.owner = THIS_MODULE,
},
};

static int __init sunfire_leds_init(void)
{
int err = platform_driver_register(&sunfire_clockboard_led_driver);

if (err) {
printk(KERN_ERR PFX "Could not register clock board LED driver\n");
return err;
}

err = platform_driver_register(&sunfire_fhc_led_driver);
if (err) {
printk(KERN_ERR PFX "Could not register FHC LED driver\n");
platform_driver_unregister(&sunfire_clockboard_led_driver);
}

return err;
}

static void __exit sunfire_leds_exit(void)
{
platform_driver_unregister(&sunfire_clockboard_led_driver);
platform_driver_unregister(&sunfire_fhc_led_driver);
}

module_init(sunfire_leds_init);
module_exit(sunfire_leds_exit);

0 comments on commit 639da4b

Please sign in to comment.