projects / deliverable / linux.git / blame
| Commit | Line | Data |
|---|---|---|
| 3197059a PP |
1 | /* |
| 2 | * System Specific setup for Traverse Technologies GEOS. | |
| 3 | * At the moment this means setup of GPIO control of LEDs. | |
| 4 | * | |
| 5 | * Copyright (C) 2008 Constantin Baranov <const@mimas.ru> | |
| 6 | * Copyright (C) 2011 Ed Wildgoose <kernel@wildgooses.com> | |
| 7 | * and Philip Prindeville <philipp@redfish-solutions.com> | |
| 8 | * | |
| 9 | * TODO: There are large similarities with leds-net5501.c | |
| 10 | * by Alessandro Zummo <a.zummo@towertech.it> | |
| 11 | * In the future leds-net5501.c should be migrated over to platform | |
| 12 | * | |
| 13 | * This program is free software; you can redistribute it and/or modify | |
| 14 | * it under the terms of the GNU General Public License version 2 | |
| 15 | * as published by the Free Software Foundation. | |
| 16 | */ | |
| 17 | ||
| 18 | #include <linux/kernel.h> | |
| 19 | #include <linux/init.h> | |
| 20 | #include <linux/io.h> | |
| 21 | #include <linux/string.h> | |
| 3197059a PP |
22 | #include <linux/leds.h> |
| 23 | #include <linux/platform_device.h> | |
| 24 | #include <linux/gpio.h> | |
| 25 | #include <linux/input.h> | |
| 26 | #include <linux/gpio_keys.h> | |
| 27 | #include <linux/dmi.h> | |
| 28 | ||
| 29 | #include <asm/geode.h> | |
| 30 | ||
| 31 | static struct gpio_keys_button geos_gpio_buttons[] = { | |
| 32 | { | |
| 33 | .code = KEY_RESTART, | |
| 34 | .gpio = 3, | |
| 35 | .active_low = 1, | |
| 36 | .desc = "Reset button", | |
| 37 | .type = EV_KEY, | |
| 38 | .wakeup = 0, | |
| 39 | .debounce_interval = 100, | |
| 40 | .can_disable = 0, | |
| 41 | } | |
| 42 | }; | |
| 43 | static struct gpio_keys_platform_data geos_buttons_data = { | |
| 44 | .buttons = geos_gpio_buttons, | |
| 45 | .nbuttons = ARRAY_SIZE(geos_gpio_buttons), | |
| 46 | .poll_interval = 20, | |
| 47 | }; | |
| 48 | ||
| 49 | static struct platform_device geos_buttons_dev = { | |
| 50 | .name = "gpio-keys-polled", | |
| 51 | .id = 1, | |
| 52 | .dev = { | |
| 53 | .platform_data = &geos_buttons_data, | |
| 54 | } | |
| 55 | }; | |
| 56 | ||
| 57 | static struct gpio_led geos_leds[] = { | |
| 58 | { | |
| 59 | .name = "geos:1", | |
| 60 | .gpio = 6, | |
| 61 | .default_trigger = "default-on", | |
| 62 | .active_low = 1, | |
| 63 | }, | |
| 64 | { | |
| 65 | .name = "geos:2", | |
| 66 | .gpio = 25, | |
| 67 | .default_trigger = "default-off", | |
| 68 | .active_low = 1, | |
| 69 | }, | |
| 70 | { | |
| 71 | .name = "geos:3", | |
| 72 | .gpio = 27, | |
| 73 | .default_trigger = "default-off", | |
| 74 | .active_low = 1, | |
| 75 | }, | |
| 76 | }; | |
| 77 | ||
| 78 | static struct gpio_led_platform_data geos_leds_data = { | |
| 79 | .num_leds = ARRAY_SIZE(geos_leds), | |
| 80 | .leds = geos_leds, | |
| 81 | }; | |
| 82 | ||
| 83 | static struct platform_device geos_leds_dev = { | |
| 84 | .name = "leds-gpio", | |
| 85 | .id = -1, | |
| 86 | .dev.platform_data = &geos_leds_data, | |
| 87 | }; | |
| 88 | ||
| a6d30e0f | 89 | static struct platform_device *geos_devs[] __initdata = { |
| 3197059a PP |
90 | &geos_buttons_dev, |
| 91 | &geos_leds_dev, | |
| 92 | }; | |
| 93 | ||
| 94 | static void __init register_geos(void) | |
| 95 | { | |
| 96 | /* Setup LED control through leds-gpio driver */ | |
| 97 | platform_add_devices(geos_devs, ARRAY_SIZE(geos_devs)); | |
| 98 | } | |
| 99 | ||
| 100 | static int __init geos_init(void) | |
| 101 | { | |
| 102 | const char *vendor, *product; | |
| 103 | ||
| 104 | if (!is_geode()) | |
| 105 | return 0; | |
| 106 | ||
| 107 | vendor = dmi_get_system_info(DMI_SYS_VENDOR); | |
| 108 | if (!vendor || strcmp(vendor, "Traverse Technologies")) | |
| 109 | return 0; | |
| 110 | ||
| 111 | product = dmi_get_system_info(DMI_PRODUCT_NAME); | |
| 112 | if (!product || strcmp(product, "Geos")) | |
| 113 | return 0; | |
| 114 | ||
| 115 | printk(KERN_INFO "%s: system is recognized as \"%s %s\"\n", | |
| 116 | KBUILD_MODNAME, vendor, product); | |
| 117 | ||
| 118 | register_geos(); | |
| 119 | ||
| 120 | return 0; | |
| 121 | } | |
| eb61aee7 | 122 | device_initcall(geos_init); |