| 1 | /* |
| 2 | * Bluetooth PM code for the FIC gta02 GSM Phone |
| 3 | * |
| 4 | * (C) 2007 by Openmoko Inc. |
| 5 | * Author: Harald Welte <laforge@openmoko.org> |
| 6 | * All rights reserved. |
| 7 | * |
| 8 | * This program is free software; you can redistribute it and/or modify |
| 9 | * it under the terms of the GNU General Public License version 2 as |
| 10 | * published by the Free Software Foundation |
| 11 | * |
| 12 | */ |
| 13 | |
| 14 | #include <linux/module.h> |
| 15 | #include <linux/init.h> |
| 16 | #include <linux/kernel.h> |
| 17 | #include <linux/platform_device.h> |
| 18 | |
| 19 | #include <mach/hardware.h> |
| 20 | #include <asm/mach-types.h> |
| 21 | |
| 22 | #include <mach/gta02.h> |
| 23 | #include <linux/mfd/pcf50633/gpio.h> |
| 24 | |
| 25 | static ssize_t pm_host_read(struct device *dev, struct device_attribute *attr, |
| 26 | char *buf) |
| 27 | { |
| 28 | return sprintf(buf, "%d\n", |
| 29 | pcf50633_gpio_get(gta02_pcf, PCF50633_GPO) |
| 30 | == PCF50633_GPOCFG_GPOSEL_1); |
| 31 | } |
| 32 | |
| 33 | static ssize_t pm_host_write(struct device *dev, struct device_attribute *attr, |
| 34 | const char *buf, size_t count) |
| 35 | { |
| 36 | unsigned long on = simple_strtoul(buf, NULL, 10); |
| 37 | u8 val; |
| 38 | |
| 39 | if (on) |
| 40 | val = PCF50633_GPOCFG_GPOSEL_1; |
| 41 | else |
| 42 | val = PCF50633_GPOCFG_GPOSEL_0; |
| 43 | |
| 44 | |
| 45 | pcf50633_gpio_set(gta02_pcf, PCF50633_GPO, val); |
| 46 | |
| 47 | return count; |
| 48 | } |
| 49 | |
| 50 | static DEVICE_ATTR(hostmode, 0644, pm_host_read, pm_host_write); |
| 51 | |
| 52 | static struct attribute *gta02_pm_host_sysfs_entries[] = { |
| 53 | &dev_attr_hostmode.attr, |
| 54 | NULL |
| 55 | }; |
| 56 | |
| 57 | static struct attribute_group gta02_pm_host_attr_group = { |
| 58 | .name = NULL, |
| 59 | .attrs = gta02_pm_host_sysfs_entries, |
| 60 | }; |
| 61 | |
| 62 | static int __init gta02_pm_host_probe(struct platform_device *pdev) |
| 63 | { |
| 64 | dev_info(&pdev->dev, "starting\n"); |
| 65 | return sysfs_create_group(&pdev->dev.kobj, >a02_pm_host_attr_group); |
| 66 | } |
| 67 | |
| 68 | static int gta02_pm_host_remove(struct platform_device *pdev) |
| 69 | { |
| 70 | sysfs_remove_group(&pdev->dev.kobj, >a02_pm_host_attr_group); |
| 71 | return 0; |
| 72 | } |
| 73 | |
| 74 | static struct platform_driver gta02_pm_host_driver = { |
| 75 | .probe = gta02_pm_host_probe, |
| 76 | .remove = gta02_pm_host_remove, |
| 77 | .driver = { |
| 78 | .name = "gta02-pm-host", |
| 79 | }, |
| 80 | }; |
| 81 | |
| 82 | static int __devinit gta02_pm_host_init(void) |
| 83 | { |
| 84 | return platform_driver_register(>a02_pm_host_driver); |
| 85 | } |
| 86 | |
| 87 | static void gta02_pm_host_exit(void) |
| 88 | { |
| 89 | platform_driver_unregister(>a02_pm_host_driver); |
| 90 | } |
| 91 | |
| 92 | module_init(gta02_pm_host_init); |
| 93 | module_exit(gta02_pm_host_exit); |
| 94 | |
| 95 | MODULE_LICENSE("GPL"); |
| 96 | MODULE_AUTHOR("Andy Green <andy@openmoko.com>"); |
| 97 | MODULE_DESCRIPTION("Openmoko Freerunner USB Host Power Management"); |
| 98 | |
