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ARM: mach-pxa: retire custom LED code

Browse source 
Signed-off-by: Bryan Wu <bryan.wu@canonical.com>
This commit is contained in:
Bryan Wu 2012-03-14 02:07:58 +08:00
parent 51891a4313
commit 55f5d8ec5a
9 changed files with 270 additions and 411 deletions
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8
arch/arm/mach-pxa/Makefile
View file

@ -95,12 +95,4 @@ obj-$(CONFIG_MACH_RAUMFELD_CONNECTOR) += raumfeld.o
obj-$(CONFIG_MACH_RAUMFELD_SPEAKER) += raumfeld.o
obj-$(CONFIG_MACH_ZIPIT2) += z2.o
# Support for blinky lights
led-y := leds.o
led-$(CONFIG_ARCH_LUBBOCK) += leds-lubbock.o
led-$(CONFIG_MACH_MAINSTONE) += leds-mainstone.o
led-$(CONFIG_ARCH_PXA_IDP) += leds-idp.o
obj-$(CONFIG_LEDS) += $(led-y)
obj-$(CONFIG_TOSA_BT) += tosa-bt.o

81
arch/arm/mach-pxa/idp.c
View file

@ -191,6 +191,87 @@ static void __init idp_map_io(void)
iotable_init(idp_io_desc, ARRAY_SIZE(idp_io_desc));
}
/* LEDs */
#if defined(CONFIG_NEW_LEDS) && defined(CONFIG_LEDS_CLASS)
struct idp_led {
struct led_classdev cdev;
u8 mask;
};
/*
* The triggers lines up below will only be used if the
* LED triggers are compiled in.
*/
static const struct {
const char *name;
const char *trigger;
} idp_leds[] = {
{ "idp:green", "heartbeat", },
{ "idp:red", "cpu0", },
};
static void idp_led_set(struct led_classdev *cdev,
enum led_brightness b)
{
struct idp_led *led = container_of(cdev,
struct idp_led, cdev);
u32 reg = IDP_CPLD_LED_CONTROL;
if (b != LED_OFF)
reg &= ~led->mask;
else
reg |= led->mask;
IDP_CPLD_LED_CONTROL = reg;
}
static enum led_brightness idp_led_get(struct led_classdev *cdev)
{
struct idp_led *led = container_of(cdev,
struct idp_led, cdev);
return (IDP_CPLD_LED_CONTROL & led->mask) ? LED_OFF : LED_FULL;
}
static int __init idp_leds_init(void)
{
int i;
if (!machine_is_pxa_idp())
return -ENODEV;
for (i = 0; i < ARRAY_SIZE(idp_leds); i++) {
struct idp_led *led;
led = kzalloc(sizeof(*led), GFP_KERNEL);
if (!led)
break;
led->cdev.name = idp_leds[i].name;
led->cdev.brightness_set = idp_led_set;
led->cdev.brightness_get = idp_led_get;
led->cdev.default_trigger = idp_leds[i].trigger;
if (i == 0)
led->mask = IDP_HB_LED;
else
led->mask = IDP_BUSY_LED;
if (led_classdev_register(NULL, &led->cdev) < 0) {
kfree(led);
break;
}
}
return 0;
}
/*
* Since we may have triggers on any subsystem, defer registration
* until after subsystem_init.
*/
fs_initcall(idp_leds_init);
#endif
MACHINE_START(PXA_IDP, "Vibren PXA255 IDP")
/* Maintainer: Vibren Technologies */

115
arch/arm/mach-pxa/leds-idp.c
View file

@ -1,115 +0,0 @@
/*
* linux/arch/arm/mach-pxa/leds-idp.c
*
* Copyright (C) 2000 John Dorsey <john+@cs.cmu.edu>
*
* Copyright (c) 2001 Jeff Sutherland <jeffs@accelent.com>
*
* Original (leds-footbridge.c) by Russell King
*
* Macros for actual LED manipulation should be in machine specific
* files in this 'mach' directory.
*/
#include <linux/init.h>
#include <mach/hardware.h>
#include <asm/leds.h>
#include <mach/pxa25x.h>
#include <mach/idp.h>
#include "leds.h"
#define LED_STATE_ENABLED 1
#define LED_STATE_CLAIMED 2
static unsigned int led_state;
static unsigned int hw_led_state;
void idp_leds_event(led_event_t evt)
{
unsigned long flags;
local_irq_save(flags);
switch (evt) {
case led_start:
hw_led_state = IDP_HB_LED | IDP_BUSY_LED;
led_state = LED_STATE_ENABLED;
break;
case led_stop:
led_state &= ~LED_STATE_ENABLED;
break;
case led_claim:
led_state |= LED_STATE_CLAIMED;
hw_led_state = IDP_HB_LED | IDP_BUSY_LED;
break;
case led_release:
led_state &= ~LED_STATE_CLAIMED;
hw_led_state = IDP_HB_LED | IDP_BUSY_LED;
break;
#ifdef CONFIG_LEDS_TIMER
case led_timer:
if (!(led_state & LED_STATE_CLAIMED))
hw_led_state ^= IDP_HB_LED;
break;
#endif
#ifdef CONFIG_LEDS_CPU
case led_idle_start:
if (!(led_state & LED_STATE_CLAIMED))
hw_led_state &= ~IDP_BUSY_LED;
break;
case led_idle_end:
if (!(led_state & LED_STATE_CLAIMED))
hw_led_state |= IDP_BUSY_LED;
break;
#endif
case led_halted:
break;
case led_green_on:
if (led_state & LED_STATE_CLAIMED)
hw_led_state |= IDP_HB_LED;
break;
case led_green_off:
if (led_state & LED_STATE_CLAIMED)
hw_led_state &= ~IDP_HB_LED;
break;
case led_amber_on:
break;
case led_amber_off:
break;
case led_red_on:
if (led_state & LED_STATE_CLAIMED)
hw_led_state |= IDP_BUSY_LED;
break;
case led_red_off:
if (led_state & LED_STATE_CLAIMED)
hw_led_state &= ~IDP_BUSY_LED;
break;
default:
break;
}
if (led_state & LED_STATE_ENABLED)
IDP_CPLD_LED_CONTROL = ( (IDP_CPLD_LED_CONTROL | IDP_LEDS_MASK) & ~hw_led_state);
else
IDP_CPLD_LED_CONTROL |= IDP_LEDS_MASK;
local_irq_restore(flags);
}

124
arch/arm/mach-pxa/leds-lubbock.c
View file

@ -1,124 +0,0 @@
/*
* linux/arch/arm/mach-pxa/leds-lubbock.c
*
* Copyright (C) 2000 John Dorsey <john+@cs.cmu.edu>
*
* Copyright (c) 2001 Jeff Sutherland <jeffs@accelent.com>
*
* Original (leds-footbridge.c) by Russell King
*
* Major surgery on April 2004 by Nicolas Pitre for less global
* namespace collision. Mostly adapted the Mainstone version.
*/
#include <linux/init.h>
#include <mach/hardware.h>
#include <asm/leds.h>
#include <mach/pxa25x.h>
#include <mach/lubbock.h>
#include "leds.h"
/*
* 8 discrete leds available for general use:
*
* Note: bits [15-8] are used to enable/blank the 8 7 segment hex displays
* so be sure to not monkey with them here.
*/
#define D28 (1 << 0)
#define D27 (1 << 1)
#define D26 (1 << 2)
#define D25 (1 << 3)
#define D24 (1 << 4)
#define D23 (1 << 5)
#define D22 (1 << 6)
#define D21 (1 << 7)
#define LED_STATE_ENABLED 1
#define LED_STATE_CLAIMED 2
static unsigned int led_state;
static unsigned int hw_led_state;
void lubbock_leds_event(led_event_t evt)
{
unsigned long flags;
local_irq_save(flags);
switch (evt) {
case led_start:
hw_led_state = 0;
led_state = LED_STATE_ENABLED;
break;
case led_stop:
led_state &= ~LED_STATE_ENABLED;
break;
case led_claim:
led_state |= LED_STATE_CLAIMED;
hw_led_state = 0;
break;
case led_release:
led_state &= ~LED_STATE_CLAIMED;
hw_led_state = 0;
break;
#ifdef CONFIG_LEDS_TIMER
case led_timer:
hw_led_state ^= D26;
break;
#endif
#ifdef CONFIG_LEDS_CPU
case led_idle_start:
hw_led_state &= ~D27;
break;
case led_idle_end:
hw_led_state |= D27;
break;
#endif
case led_halted:
break;
case led_green_on:
hw_led_state |= D21;
break;
case led_green_off:
hw_led_state &= ~D21;
break;
case led_amber_on:
hw_led_state |= D22;
break;
case led_amber_off:
hw_led_state &= ~D22;
break;
case led_red_on:
hw_led_state |= D23;
break;
case led_red_off:
hw_led_state &= ~D23;
break;
default:
break;
}
if (led_state & LED_STATE_ENABLED)
LUB_DISC_BLNK_LED = (LUB_DISC_BLNK_LED | 0xff) & ~hw_led_state;
else
LUB_DISC_BLNK_LED |= 0xff;
local_irq_restore(flags);
}

119
arch/arm/mach-pxa/leds-mainstone.c
View file

@ -1,119 +0,0 @@
/*
* linux/arch/arm/mach-pxa/leds-mainstone.c
*
* Author: Nicolas Pitre
* Created: Nov 05, 2002
* Copyright: MontaVista Software Inc.
*
* This program is free software; you can redistribute it and/or modify
* it under the terms of the GNU General Public License version 2 as
* published by the Free Software Foundation.
*/
#include <linux/init.h>
#include <mach/hardware.h>
#include <asm/leds.h>
#include <mach/pxa27x.h>
#include <mach/mainstone.h>
#include "leds.h"
/* 8 discrete leds available for general use: */
#define D28 (1 << 0)
#define D27 (1 << 1)
#define D26 (1 << 2)
#define D25 (1 << 3)
#define D24 (1 << 4)
#define D23 (1 << 5)
#define D22 (1 << 6)
#define D21 (1 << 7)
#define LED_STATE_ENABLED 1
#define LED_STATE_CLAIMED 2
static unsigned int led_state;
static unsigned int hw_led_state;
void mainstone_leds_event(led_event_t evt)
{
unsigned long flags;
local_irq_save(flags);
switch (evt) {
case led_start:
hw_led_state = 0;
led_state = LED_STATE_ENABLED;
break;
case led_stop:
led_state &= ~LED_STATE_ENABLED;
break;
case led_claim:
led_state |= LED_STATE_CLAIMED;
hw_led_state = 0;
break;
case led_release:
led_state &= ~LED_STATE_CLAIMED;
hw_led_state = 0;
break;
#ifdef CONFIG_LEDS_TIMER
case led_timer:
hw_led_state ^= D26;
break;
#endif
#ifdef CONFIG_LEDS_CPU
case led_idle_start:
hw_led_state &= ~D27;
break;
case led_idle_end:
hw_led_state |= D27;
break;
#endif
case led_halted:
break;
case led_green_on:
hw_led_state |= D21;
break;
case led_green_off:
hw_led_state &= ~D21;
break;
case led_amber_on:
hw_led_state |= D22;
break;
case led_amber_off:
hw_led_state &= ~D22;
break;
case led_red_on:
hw_led_state |= D23;
break;
case led_red_off:
hw_led_state &= ~D23;
break;
default:
break;
}
if (led_state & LED_STATE_ENABLED)
MST_LEDCTRL = (MST_LEDCTRL | 0xff) & ~hw_led_state;
else
MST_LEDCTRL |= 0xff;
local_irq_restore(flags);
}

32
arch/arm/mach-pxa/leds.c
View file

@ -1,32 +0,0 @@
/*
* linux/arch/arm/mach-pxa/leds.c
*
* xscale LEDs dispatcher
*
* Copyright (C) 2001 Nicolas Pitre
*
* Copyright (c) 2001 Jeff Sutherland, Accelent Systems Inc.
*/
#include <linux/compiler.h>
#include <linux/init.h>
#include <asm/leds.h>
#include <asm/mach-types.h>
#include "leds.h"
static int __init
pxa_leds_init(void)
{
if (machine_is_lubbock())
leds_event = lubbock_leds_event;
if (machine_is_mainstone())
leds_event = mainstone_leds_event;
if (machine_is_pxa_idp())
leds_event = idp_leds_event;
leds_event(led_start);
return 0;
}
core_initcall(pxa_leds_init);

13
arch/arm/mach-pxa/leds.h
View file

@ -1,13 +0,0 @@
/*
* arch/arm/mach-pxa/leds.h
*
* Copyright (c) 2001 Jeff Sutherland, Accelent Systems Inc.
*
* blinky lights for various PXA-based systems:
*
*/
extern void idp_leds_event(led_event_t evt);
extern void lubbock_leds_event(led_event_t evt);
extern void mainstone_leds_event(led_event_t evt);
extern void trizeps4_leds_event(led_event_t evt);

95
arch/arm/mach-pxa/lubbock.c
View file

@ -15,6 +15,7 @@
#include <linux/module.h>
#include <linux/kernel.h>
#include <linux/init.h>
#include <linux/io.h>
#include <linux/platform_device.h>
#include <linux/syscore_ops.h>
#include <linux/major.h>
@ -23,6 +24,8 @@
#include <linux/mtd/mtd.h>
#include <linux/mtd/partitions.h>
#include <linux/smc91x.h>
#include <linux/slab.h>
#include <linux/leds.h>
#include <linux/spi/spi.h>
#include <linux/spi/ads7846.h>
@ -549,6 +552,98 @@ static void __init lubbock_map_io(void)
PCFR |= PCFR_OPDE;
}
/*
* Driver for the 8 discrete LEDs available for general use:
* Note: bits [15-8] are used to enable/blank the 8 7 segment hex displays
* so be sure to not monkey with them here.
*/
#if defined(CONFIG_NEW_LEDS) && defined(CONFIG_LEDS_CLASS)
struct lubbock_led {
struct led_classdev cdev;
u8 mask;
};
/*
* The triggers lines up below will only be used if the
* LED triggers are compiled in.
*/
static const struct {
const char *name;
const char *trigger;
} lubbock_leds[] = {
{ "lubbock:D28", "default-on", },
{ "lubbock:D27", "cpu0", },
{ "lubbock:D26", "heartbeat" },
{ "lubbock:D25", },
{ "lubbock:D24", },
{ "lubbock:D23", },
{ "lubbock:D22", },
{ "lubbock:D21", },
};
static void lubbock_led_set(struct led_classdev *cdev,
enum led_brightness b)
{
struct lubbock_led *led = container_of(cdev,
struct lubbock_led, cdev);
u32 reg = LUB_DISC_BLNK_LED;
if (b != LED_OFF)
reg |= led->mask;
else
reg &= ~led->mask;
LUB_DISC_BLNK_LED = reg;
}
static enum led_brightness lubbock_led_get(struct led_classdev *cdev)
{
struct lubbock_led *led = container_of(cdev,
struct lubbock_led, cdev);
u32 reg = LUB_DISC_BLNK_LED;
return (reg & led->mask) ? LED_FULL : LED_OFF;
}
static int __init lubbock_leds_init(void)
{
int i;
if (!machine_is_lubbock())
return -ENODEV;
/* All ON */
LUB_DISC_BLNK_LED |= 0xff;
for (i = 0; i < ARRAY_SIZE(lubbock_leds); i++) {
struct lubbock_led *led;
led = kzalloc(sizeof(*led), GFP_KERNEL);
if (!led)
break;
led->cdev.name = lubbock_leds[i].name;
led->cdev.brightness_set = lubbock_led_set;
led->cdev.brightness_get = lubbock_led_get;
led->cdev.default_trigger = lubbock_leds[i].trigger;
led->mask = BIT(i);
if (led_classdev_register(NULL, &led->cdev) < 0) {
kfree(led);
break;
}
}
return 0;
}
/*
* Since we may have triggers on any subsystem, defer registration
* until after subsystem_init.
*/
fs_initcall(lubbock_leds_init);
#endif
MACHINE_START(LUBBOCK, "Intel DBPXA250 Development Platform (aka Lubbock)")
/* Maintainer: MontaVista Software Inc. */
.map_io = lubbock_map_io,

94
arch/arm/mach-pxa/mainstone.c
View file

@ -28,6 +28,8 @@
#include <linux/pwm_backlight.h>
#include <linux/smc91x.h>
#include <linux/i2c/pxa-i2c.h>
#include <linux/slab.h>
#include <linux/leds.h>
#include <asm/types.h>
#include <asm/setup.h>
@ -613,6 +615,98 @@ static void __init mainstone_map_io(void)
PCFR = 0x66;
}
/*
* Driver for the 8 discrete LEDs available for general use:
* Note: bits [15-8] are used to enable/blank the 8 7 segment hex displays
* so be sure to not monkey with them here.
*/
#if defined(CONFIG_NEW_LEDS) && defined(CONFIG_LEDS_CLASS)
struct mainstone_led {
struct led_classdev cdev;
u8 mask;
};
/*
* The triggers lines up below will only be used if the
* LED triggers are compiled in.
*/
static const struct {
const char *name;
const char *trigger;
} mainstone_leds[] = {
{ "mainstone:D28", "default-on", },
{ "mainstone:D27", "cpu0", },
{ "mainstone:D26", "heartbeat" },
{ "mainstone:D25", },
{ "mainstone:D24", },
{ "mainstone:D23", },
{ "mainstone:D22", },
{ "mainstone:D21", },
};
static void mainstone_led_set(struct led_classdev *cdev,
enum led_brightness b)
{
struct mainstone_led *led = container_of(cdev,
struct mainstone_led, cdev);
u32 reg = MST_LEDCTRL;
if (b != LED_OFF)
reg |= led->mask;
else
reg &= ~led->mask;
MST_LEDCTRL = reg;
}
static enum led_brightness mainstone_led_get(struct led_classdev *cdev)
{
struct mainstone_led *led = container_of(cdev,
struct mainstone_led, cdev);
u32 reg = MST_LEDCTRL;
return (reg & led->mask) ? LED_FULL : LED_OFF;
}
static int __init mainstone_leds_init(void)
{
int i;
if (!machine_is_mainstone())
return -ENODEV;
/* All ON */
MST_LEDCTRL |= 0xff;
for (i = 0; i < ARRAY_SIZE(mainstone_leds); i++) {
struct mainstone_led *led;
led = kzalloc(sizeof(*led), GFP_KERNEL);
if (!led)
break;
led->cdev.name = mainstone_leds[i].name;
led->cdev.brightness_set = mainstone_led_set;
led->cdev.brightness_get = mainstone_led_get;
led->cdev.default_trigger = mainstone_leds[i].trigger;
led->mask = BIT(i);
if (led_classdev_register(NULL, &led->cdev) < 0) {
kfree(led);
break;
}
}
return 0;
}
/*
* Since we may have triggers on any subsystem, defer registration
* until after subsystem_init.
*/
fs_initcall(mainstone_leds_init);
#endif
MACHINE_START(MAINSTONE, "Intel HCDDBBVA0 Development Platform (aka Mainstone)")
/* Maintainer: MontaVista Software Inc. */
.atag_offset = 0x100, /* BLOB boot parameter setting */