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path: root/recipes/linux/linux-2.6.27/progear/progear-ac2.patch
blob: 229da799cfc83a088e08a95b8f1cc78395f02d87 (plain)
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---
 drivers/power/Kconfig      |    5 +
 drivers/power/Makefile     |    1 
 drivers/power/progear_ac.c |  132 +++++++++++++++++++++++++++++++++++++++++++++
 3 files changed, 138 insertions(+)

--- linux-2.6.27.orig/drivers/power/Kconfig
+++ linux-2.6.27/drivers/power/Kconfig
@@ -60,6 +60,11 @@ config BATTERY_PALMTX
 	tristate "Palm T|X battery"
 	depends on MACH_PALMTX
 	help
 	  Say Y to enable support for the battery in Palm T|X.
 
+config PROGEAR_POWER
+	tristate "Frontpath Progear AC/Battery"
+	depends on PCI && X86
+	help
+	  Say Y to enable support for the AC/battery in Frontpath Progear
 endif # POWER_SUPPLY
--- linux-2.6.27.orig/drivers/power/Makefile
+++ linux-2.6.27/drivers/power/Makefile
@@ -20,5 +20,6 @@ obj-$(CONFIG_APM_POWER)		+= apm_power.o
 obj-$(CONFIG_BATTERY_DS2760)	+= ds2760_battery.o
 obj-$(CONFIG_BATTERY_PMU)	+= pmu_battery.o
 obj-$(CONFIG_BATTERY_OLPC)	+= olpc_battery.o
 obj-$(CONFIG_BATTERY_TOSA)	+= tosa_battery.o
 obj-$(CONFIG_BATTERY_PALMTX)	+= palmtx_battery.o
+obj-$(CONFIG_PROGEAR_POWER)	+= progear_ac.o
--- /dev/null
+++ linux-2.6.27/drivers/power/progear_ac.c
@@ -0,0 +1,132 @@
+/*
+ * linux/drivers/power/progear_ac.c
+ *
+ * AC detection driver for Frontpath Progear
+ *
+ * based on palmtx_battery.c
+ * based on tosa_battery.c
+ *
+ * Copyright (C) 2008 Marcin Juszkiewicz <marcin@haerwu.biz>
+ *
+ * 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/platform_device.h>
+#include <linux/power_supply.h>
+#include <linux/pci.h>
+
+int ac_status = 0;
+
+struct pci_dev *pmu_dev=NULL;
+
+#define PMU_CFG_RSM8 0xC0
+
+static void progear_ac_update()
+{
+	u8 temp;
+
+	pci_read_config_byte(pmu_dev, PMU_CFG_RSM8, &temp);
+
+	ac_status = (temp & 0x10) ? 1: 0;
+}
+
+static int progear_ac_get_property(struct power_supply *bat_ps,
+			    enum power_supply_property psp,
+			    union power_supply_propval *val)
+{
+	switch (psp) {
+	case POWER_SUPPLY_PROP_PRESENT:
+		progear_ac_update();
+		val->intval = ac_status;
+		break;
+	default:
+		return -EINVAL;
+	}
+	return 0;
+}
+
+static void progear_ac_external_power_changed(struct power_supply *bat_ps)
+{
+	progear_ac_update();
+}
+
+static enum power_supply_property progear_ac_main_props[] = {
+	POWER_SUPPLY_PROP_PRESENT,
+};
+
+struct power_supply bat_ps = {
+	.name			= "main-battery",
+	.type			= POWER_SUPPLY_TYPE_MAINS,
+	.properties		= progear_ac_main_props,
+	.num_properties		= ARRAY_SIZE(progear_ac_main_props),
+	.get_property		= progear_ac_get_property,
+	.external_power_changed = progear_ac_external_power_changed,
+	.use_for_apm		= 1,
+};
+
+static int __devinit progear_ac_probe(struct platform_device *dev)
+{
+	int ret = 0;
+
+	pmu_dev = pci_get_device(PCI_VENDOR_ID_AL, PCI_DEVICE_ID_AL_M7101, NULL);
+	if(!pmu_dev) {
+		printk("ALI M7101 PMU not found.\n");
+		return -ENODEV;
+	}
+
+	return power_supply_register(&dev->dev, &bat_ps);
+}
+
+static int __devexit progear_ac_remove(struct platform_device *dev)
+{
+	power_supply_unregister(&bat_ps);
+	return 0;
+}
+
+static struct platform_driver progear_ac_driver = {
+	.driver = {
+		.name = "progear-ac",
+		.owner= THIS_MODULE,
+	},
+	.probe		= progear_ac_probe,
+	.remove		= progear_ac_remove,
+};
+
+static struct platform_device *progear_ac_device;
+
+static int __init progear_ac_init(void)
+{
+	int ret = platform_driver_register(&progear_ac_driver);
+
+	if (ret)
+		return ret;
+
+	progear_ac_device = platform_device_register_simple("progear-ac", -1,
+								NULL, 0);
+	if (IS_ERR(progear_ac_device)) {
+		platform_driver_unregister(&progear_ac_driver);
+		return PTR_ERR(progear_ac_device);
+	}
+
+	return 0;
+}
+
+static void __exit progear_ac_exit(void)
+{
+	pci_dev_put(pmu_dev);
+
+	platform_device_unregister(progear_ac_device);
+	platform_driver_unregister(&progear_ac_driver);
+}
+
+module_init(progear_ac_init);
+module_exit(progear_ac_exit);
+
+MODULE_LICENSE("GPL");
+MODULE_AUTHOR("Marcin Juszkiewicz <marcin@haerwu.biz>");
+MODULE_DESCRIPTION("Frontpath Progear AC driver");