From 5f5dc9c1adf041418c6dd273cd4ee83d5ae96e74 Mon Sep 17 00:00:00 2001 From: Mario Limonciello Date: Wed, 19 Aug 2009 11:41:27 -0500 Subject: [PATCH 2/3] Add rfkill support to compal-laptop Signed-off-by: Mario Limonciello Reviewed-by: Alan Jenkins --- drivers/platform/x86/compal-laptop.c | 91 +++++++++++++++++++++++++++++++++- 1 files changed, 89 insertions(+), 2 deletions(-) diff --git a/drivers/platform/x86/compal-laptop.c b/drivers/platform/x86/compal-laptop.c index 11003bb..d997de5 100644 --- a/drivers/platform/x86/compal-laptop.c +++ b/drivers/platform/x86/compal-laptop.c @@ -52,6 +52,7 @@ #include #include #include +#include #define COMPAL_DRIVER_VERSION "0.2.6" @@ -64,6 +65,10 @@ #define WLAN_MASK 0x01 #define BT_MASK 0x02 +static struct rfkill *wifi_rfkill; +static struct rfkill *bt_rfkill; +static struct platform_device *compal_device; + static int force; module_param(force, bool, 0); MODULE_PARM_DESC(force, "Force driver load, ignore DMI data"); @@ -89,6 +94,82 @@ static int get_lcd_level(void) return (int) result; } +static int compal_rfkill_set(void *data, bool blocked) +{ + unsigned long radio = (unsigned long) data; + u8 result, value; + + ec_read(COMPAL_EC_COMMAND_WIRELESS, &result); + + if ((result & KILLSWITCH_MASK) == 0) + return -EINVAL; + + if (!blocked) + value = (u8) (result | radio); + else + value = (u8) (result & ~radio); + ec_write(COMPAL_EC_COMMAND_WIRELESS, value); + + return 0; +} + +static void compal_rfkill_poll(struct rfkill *rfkill, void *data) +{ + u8 result; + bool hw_blocked; + bool sw_blocked; + + ec_read(COMPAL_EC_COMMAND_WIRELESS, &result); + + hw_blocked = !(result & KILLSWITCH_MASK); + sw_blocked = rfkill_set_hw_state(rfkill, hw_blocked); + compal_rfkill_set(data,sw_blocked); +} + +static const struct rfkill_ops compal_rfkill_ops = { + .poll = compal_rfkill_poll, + .set_block = compal_rfkill_set, +}; + +static int setup_rfkill(void) +{ + int ret; + + wifi_rfkill = rfkill_alloc("compal-wifi", &compal_device->dev, + RFKILL_TYPE_WLAN, &compal_rfkill_ops, + (void *) WLAN_MASK); + if (!wifi_rfkill) + return -ENOMEM; + + ret = rfkill_register(wifi_rfkill); + if (ret) + goto err_wifi; + + bt_rfkill = rfkill_alloc("compal-bluetooth", &compal_device->dev, + RFKILL_TYPE_BLUETOOTH, &compal_rfkill_ops, + (void *) BT_MASK); + if (!bt_rfkill) { + ret = -ENOMEM; + goto err_allocate_bt; + } + ret = rfkill_register(bt_rfkill); + if (ret) + goto err_register_bt; + + return 0; + +err_register_bt: + rfkill_destroy(bt_rfkill); + +err_allocate_bt: + rfkill_unregister(wifi_rfkill); + +err_wifi: + rfkill_destroy(wifi_rfkill); + + return ret; +} + static int set_wlan_state(int state) { u8 result, value; @@ -258,8 +339,6 @@ static struct platform_driver compal_driver = { } }; -static struct platform_device *compal_device; - /* Initialization */ static int dmi_check_cb(const struct dmi_system_id *id) @@ -356,6 +435,10 @@ static int __init compal_init(void) if (ret) goto fail_platform_device2; + ret = setup_rfkill(); + if (ret) + printk(KERN_WARNING "compal-laptop: Unable to setup rfkill\n"); + printk(KERN_INFO "compal-laptop: driver "COMPAL_DRIVER_VERSION " successfully loaded.\n"); @@ -387,6 +470,10 @@ static void __exit compal_cleanup(void) platform_device_unregister(compal_device); platform_driver_unregister(&compal_driver); backlight_device_unregister(compalbl_device); + rfkill_unregister(wifi_rfkill); + rfkill_destroy(wifi_rfkill); + rfkill_unregister(bt_rfkill); + rfkill_destroy(bt_rfkill); printk(KERN_INFO "compal-laptop: driver unloaded.\n"); } -- 1.6.3.3