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Release 4.14 drivers/leds/leds-sunfire.c

Directory: drivers/leds
/* leds-sunfire.c: SUNW,Ultra-Enterprise LED driver.
 *
 * Copyright (C) 2008 David S. Miller <davem@davemloft.net>
 */


#define pr_fmt(fmt) KBUILD_MODNAME ": " fmt

#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 <linux/slab.h>

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

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); }

Contributors

PersonTokensPropCommitsCommitProp
David S. Miller87100.00%1100.00%
Total87100.00%1100.00%


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

Contributors

PersonTokensPropCommitsCommitProp
David S. Miller24100.00%1100.00%
Total24100.00%1100.00%


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

Contributors

PersonTokensPropCommitsCommitProp
David S. Miller24100.00%1100.00%
Total24100.00%1100.00%


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

Contributors

PersonTokensPropCommitsCommitProp
David S. Miller24100.00%1100.00%
Total24100.00%1100.00%


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); }

Contributors

PersonTokensPropCommitsCommitProp
David S. Miller87100.00%1100.00%
Total87100.00%1100.00%


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

Contributors

PersonTokensPropCommitsCommitProp
David S. Miller24100.00%1100.00%
Total24100.00%1100.00%


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

Contributors

PersonTokensPropCommitsCommitProp
David S. Miller24100.00%1100.00%
Total24100.00%1100.00%


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

Contributors

PersonTokensPropCommitsCommitProp
David S. Miller24100.00%1100.00%
Total24100.00%1100.00%

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 sunfire_led_generic_probe(struct platform_device *pdev, struct led_type *types) { struct sunfire_drvdata *p; int i, err; if (pdev->num_resources != 1) { dev_err(&pdev->dev, "Wrong number of resources %d, should be 1\n", pdev->num_resources); return -EINVAL; } p = devm_kzalloc(&pdev->dev, sizeof(*p), GFP_KERNEL); if (!p) return -ENOMEM; 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) { dev_err(&pdev->dev, "Could not register %s LED\n", lp->name); for (i--; i >= 0; i--) led_classdev_unregister(&p->leds[i].led_cdev); return err; } } platform_set_drvdata(pdev, p); return 0; }

Contributors

PersonTokensPropCommitsCommitProp
David S. Miller19479.84%120.00%
Jingoo Han218.64%240.00%
Bryan Wu187.41%120.00%
Axel Lin104.12%120.00%
Total243100.00%5100.00%


static int sunfire_led_generic_remove(struct platform_device *pdev) { struct sunfire_drvdata *p = platform_get_drvdata(pdev); int i; for (i = 0; i < NUM_LEDS_PER_BOARD; i++) led_classdev_unregister(&p->leds[i].led_cdev); return 0; }

Contributors

PersonTokensPropCommitsCommitProp
David S. Miller5298.11%150.00%
Jingoo Han11.89%150.00%
Total53100.00%2100.00%

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

Contributors

PersonTokensPropCommitsCommitProp
David S. Miller19100.00%1100.00%
Total19100.00%1100.00%

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

Contributors

PersonTokensPropCommitsCommitProp
David S. Miller19100.00%1100.00%
Total19100.00%1100.00%

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 = sunfire_led_generic_remove, .driver = { .name = "sunfire-clockboard-leds", }, }; static struct platform_driver sunfire_fhc_led_driver = { .probe = sunfire_fhc_led_probe, .remove = sunfire_led_generic_remove, .driver = { .name = "sunfire-fhc-leds", }, }; static struct platform_driver * const drivers[] = { &sunfire_clockboard_led_driver, &sunfire_fhc_led_driver, };
static int __init sunfire_leds_init(void) { return platform_register_drivers(drivers, ARRAY_SIZE(drivers)); }

Contributors

PersonTokensPropCommitsCommitProp
David S. Miller1575.00%150.00%
Thierry Reding525.00%150.00%
Total20100.00%2100.00%


static void __exit sunfire_leds_exit(void) { platform_unregister_drivers(drivers, ARRAY_SIZE(drivers)); }

Contributors

PersonTokensPropCommitsCommitProp
David S. Miller1368.42%150.00%
Thierry Reding631.58%150.00%
Total19100.00%2100.00%

module_init(sunfire_leds_init); module_exit(sunfire_leds_exit);

Overall Contributors

PersonTokensPropCommitsCommitProp
David S. Miller91691.33%114.29%
Jingoo Han292.89%228.57%
Thierry Reding272.69%114.29%
Bryan Wu181.79%114.29%
Axel Lin101.00%114.29%
Tejun Heo30.30%114.29%
Total1003100.00%7100.00%
Directory: drivers/leds
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