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kernel: add pcengines apu led support.

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This commit is contained in:
Arne Fitzenreiter
2014-03-18 00:21:38 +01:00
parent 9a5050b4c5
commit e583643a25
4 changed files with 222 additions and 2 deletions
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3
config/kernel/kernel.config.i586-ipfire
View File

@@ -1,6 +1,6 @@
#
# Automatically generated file; DO NOT EDIT.
# Linux/x86 3.10.30-ipfire Kernel Configuration
# Linux/x86 3.10.33 Kernel Configuration
#
# CONFIG_64BIT is not set
CONFIG_X86_32=y
@@ -658,6 +658,7 @@ CONFIG_EISA_NAMES=y
CONFIG_SCx200=m
CONFIG_SCx200HR_TIMER=m
# CONFIG_OLPC is not set
CONFIG_APULED=y
CONFIG_ALIX=y
CONFIG_NET5501=y
CONFIG_GEOS=y

3
config/kernel/kernel.config.i586-ipfire-pae
View File

@@ -1,6 +1,6 @@
#
# Automatically generated file; DO NOT EDIT.
# Linux/x86 3.10.30-ipfire Kernel Configuration
# Linux/x86 3.10.33 Kernel Configuration
#
# CONFIG_64BIT is not set
CONFIG_X86_32=y
@@ -670,6 +670,7 @@ CONFIG_EISA_PCI_EISA=y
CONFIG_EISA_VIRTUAL_ROOT=y
CONFIG_EISA_NAMES=y
# CONFIG_SCx200 is not set
CONFIG_APULED=y
# CONFIG_ALIX is not set
# CONFIG_NET5501 is not set
# CONFIG_GEOS is not set

3
lfs/linux
View File

@@ -150,6 +150,9 @@ endif
# cs5535audio spams syslog if no ac97 was present (geos router)
cd $(DIR_APP) && patch -Np1 < $(DIR_SRC)/src/patches/linux-3.10.30_cs5535audio_fix_logspam_on_geos.patch
# Add PC Engines APU led support
cd $(DIR_APP) && patch -Np1 < $(DIR_SRC)/src/patches/linux-3.10-apu_leds.patch
# Fix uevent PHYSDEVDRIVER
cd $(DIR_APP) && patch -Np1 < $(DIR_SRC)/src/patches/linux-3.2.33_ipg-fix-driver-name.patch
cd $(DIR_APP) && patch -Np1 < $(DIR_SRC)/src/patches/linux-2.6.32.27_mcs7830-fix-driver-name.patch

215
src/patches/linux-3.10-apu_leds.patch Normal file
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@@ -0,0 +1,215 @@
diff -Naur linux-3.10.33.org/arch/x86/Kconfig linux-3.10.33/arch/x86/Kconfig
--- linux-3.10.33.org/arch/x86/Kconfig 2014-03-07 06:58:45.000000000 +0100
+++ linux-3.10.33/arch/x86/Kconfig 2014-03-17 17:02:46.703135023 +0100
@@ -2199,6 +2199,12 @@
- AC adapter status updates
- Battery status updates
+config APULED
+ bool "PCEngines APU Led Support"
+ depends on DMI
+ ---help---
+ This option enables system support for the PCEngines APU.
+
config ALIX
bool "PCEngines ALIX System Support (LED setup)"
select GPIOLIB
diff -Naur linux-3.10.33.org/arch/x86/platform/apu/apu-led.c linux-3.10.33/arch/x86/platform/apu/apu-led.c
--- linux-3.10.33.org/arch/x86/platform/apu/apu-led.c 1970-01-01 01:00:00.000000000 +0100
+++ linux-3.10.33/arch/x86/platform/apu/apu-led.c 2014-03-17 17:00:36.187188456 +0100
@@ -0,0 +1,181 @@
+/*
+ * LEDs driver for PCEngines apu
+ *
+ * Copyright (C) 2013 Christian Herzog <daduke@daduke.org>, based on
+ * Petr Leibman's leds-alix
+ * Hardware presence check added by Arne Fitzenreiter <arne_f@ipfire.org>
+ * Based on leds-wrap.c
+ * Hardware info taken from http://www.dpie.com/manuals/miniboards/kontron/KTD-S0043-0_KTA55_SoftwareGuide.pdf
+ *
+ * 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/kernel.h>
+#include <linux/module.h>
+#include <linux/init.h>
+#include <linux/platform_device.h>
+#include <linux/leds.h>
+#include <linux/err.h>
+#include <asm/io.h>
+#include <linux/dmi.h>
+
+#define DRVNAME "apu-led"
+#define BASEADDR (0xFED801BD)
+#define LEDON (0x8)
+#define LEDOFF (0xC8)
+
+static struct platform_device *pdev;
+unsigned int *p1;
+unsigned int *p2;
+unsigned int *p3;
+
+static void apu_led_set_1(struct led_classdev *led_cdev,
+ enum led_brightness value) {
+ if (value)
+ iowrite8(LEDON, p1);
+ else
+ iowrite8(LEDOFF, p1);
+}
+
+static void apu_led_set_2(struct led_classdev *led_cdev,
+ enum led_brightness value) {
+ if (value)
+ iowrite8(LEDON, p2);
+ else
+ iowrite8(LEDOFF, p2);
+}
+
+static void apu_led_set_3(struct led_classdev *led_cdev,
+ enum led_brightness value) {
+ if (value)
+ iowrite8(LEDON, p3);
+ else
+ iowrite8(LEDOFF, p3);
+}
+
+static struct led_classdev apu_led_1 = {
+ .name = "apu:1",
+ .brightness_set = apu_led_set_1,
+};
+
+static struct led_classdev apu_led_2 = {
+ .name = "apu:2",
+ .brightness_set = apu_led_set_2,
+};
+
+static struct led_classdev apu_led_3 = {
+ .name = "apu:3",
+ .brightness_set = apu_led_set_3,
+};
+
+
+#ifdef CONFIG_PM
+static int apu_led_suspend(struct platform_device *dev,
+ pm_message_t state)
+{
+ led_classdev_suspend(&apu_led_1);
+ led_classdev_suspend(&apu_led_2);
+ led_classdev_suspend(&apu_led_3);
+ return 0;
+}
+
+static int apu_led_resume(struct platform_device *dev)
+{
+ led_classdev_resume(&apu_led_1);
+ led_classdev_resume(&apu_led_2);
+ led_classdev_resume(&apu_led_3);
+ return 0;
+}
+#else
+#define apu_led_suspend NULL
+#define apu_led_resume NULL
+#endif
+
+static int apu_led_probe(struct platform_device *pdev)
+{
+ int ret;
+
+ ret = led_classdev_register(&pdev->dev, &apu_led_1);
+ if (ret == 0)
+ {
+ ret = led_classdev_register(&pdev->dev, &apu_led_2);
+ if (ret >= 0)
+ {
+ ret = led_classdev_register(&pdev->dev, &apu_led_3);
+ if (ret < 0)
+ led_classdev_unregister(&apu_led_2);
+ }
+ if (ret < 0)
+ led_classdev_unregister(&apu_led_1);
+ }
+ return ret;
+}
+
+static int apu_led_remove(struct platform_device *pdev)
+{
+ led_classdev_unregister(&apu_led_1);
+ led_classdev_unregister(&apu_led_2);
+ led_classdev_unregister(&apu_led_3);
+ return 0;
+}
+
+static struct platform_driver apu_led_driver = {
+ .probe = apu_led_probe,
+ .remove = apu_led_remove,
+ .suspend = apu_led_suspend,
+ .resume = apu_led_resume,
+ .driver = {
+ .name = DRVNAME,
+ .owner = THIS_MODULE,
+ },
+};
+
+static int __init apu_led_init(void)
+{
+ int ret=0;
+ const char *vendor, *product;
+
+ vendor = dmi_get_system_info(DMI_SYS_VENDOR);
+ if (!vendor || strcmp(vendor, "PC Engines"))
+ goto out;
+
+ product = dmi_get_system_info(DMI_PRODUCT_NAME);
+ if (!product || strcmp(product, "APU"))
+ goto out;
+
+ printk(KERN_INFO "%s: system is recognized as \"%s %s\"\n",
+ KBUILD_MODNAME, vendor, product);
+
+ ret = platform_driver_register(&apu_led_driver);
+ if (ret < 0)
+ goto out;
+
+ pdev = platform_device_register_simple(DRVNAME, -1, NULL, 0);
+ if (IS_ERR(pdev)) {
+ ret = PTR_ERR(pdev);
+ platform_driver_unregister(&apu_led_driver);
+ goto out;
+ }
+
+ p1 = ioremap(BASEADDR, 1);
+ p2 = ioremap(BASEADDR+1, 1);
+ p3 = ioremap(BASEADDR+2, 1);
+
+out:
+ return ret;
+}
+
+static void __exit apu_led_exit(void)
+{
+ platform_device_unregister(pdev);
+ platform_driver_unregister(&apu_led_driver);
+}
+
+module_init(apu_led_init);
+module_exit(apu_led_exit);
+
+MODULE_AUTHOR("Christian Herzog");
+MODULE_DESCRIPTION("PCEngines apu LED driver");
+MODULE_LICENSE("GPL");
diff -Naur linux-3.10.33.org/arch/x86/platform/apu/Makefile linux-3.10.33/arch/x86/platform/apu/Makefile
--- linux-3.10.33.org/arch/x86/platform/apu/Makefile 1970-01-01 01:00:00.000000000 +0100
+++ linux-3.10.33/arch/x86/platform/apu/Makefile 2014-03-17 17:05:19.245651480 +0100
@@ -0,0 +1 @@
+obj-$(CONFIG_APULED) += apu-led.o
diff -Naur linux-3.10.33.org/arch/x86/platform/Makefile linux-3.10.33/arch/x86/platform/Makefile
--- linux-3.10.33.org/arch/x86/platform/Makefile 2014-03-07 06:58:45.000000000 +0100
+++ linux-3.10.33/arch/x86/platform/Makefile 2014-03-17 14:53:15.078571307 +0100
@@ -1,4 +1,5 @@
# Platform specific code goes here
+obj-y += apu/
obj-y += ce4100/
obj-y += efi/
obj-y += geode/