![Alexey Dobriyan](/assets/img/avatar_default.png)
Signed-off-by: Alexey Dobriyan <adobriyan@gmail.com> Cc: John W. Linville <linville@tuxdriver.com> Cc: Johannes Berg <johannes@sipsolutions.net> Signed-off-by: Andrew Morton <akpm@linux-foundation.org> Signed-off-by: Len Brown <len.brown@intel.com>
827 lines
20 KiB
C
827 lines
20 KiB
C
/*
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* toshiba_acpi.c - Toshiba Laptop ACPI Extras
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*
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*
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* Copyright (C) 2002-2004 John Belmonte
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* Copyright (C) 2008 Philip Langdale
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*
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* This program is free software; you can redistribute it and/or modify
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* it under the terms of the GNU General Public License as published by
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* the Free Software Foundation; either version 2 of the License, or
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* (at your option) any later version.
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*
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* This program is distributed in the hope that it will be useful,
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* but WITHOUT ANY WARRANTY; without even the implied warranty of
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* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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* GNU General Public License for more details.
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*
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* You should have received a copy of the GNU General Public License
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* along with this program; if not, write to the Free Software
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* Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA
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*
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*
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* The devolpment page for this driver is located at
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* http://memebeam.org/toys/ToshibaAcpiDriver.
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*
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* Credits:
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* Jonathan A. Buzzard - Toshiba HCI info, and critical tips on reverse
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* engineering the Windows drivers
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* Yasushi Nagato - changes for linux kernel 2.4 -> 2.5
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* Rob Miller - TV out and hotkeys help
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*
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*
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* TODO
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*
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*/
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#define TOSHIBA_ACPI_VERSION "0.19"
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#define PROC_INTERFACE_VERSION 1
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#include <linux/kernel.h>
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#include <linux/module.h>
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#include <linux/init.h>
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#include <linux/types.h>
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#include <linux/proc_fs.h>
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#include <linux/seq_file.h>
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#include <linux/backlight.h>
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#include <linux/platform_device.h>
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#include <linux/rfkill.h>
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#include <asm/uaccess.h>
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#include <acpi/acpi_drivers.h>
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MODULE_AUTHOR("John Belmonte");
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MODULE_DESCRIPTION("Toshiba Laptop ACPI Extras Driver");
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MODULE_LICENSE("GPL");
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#define MY_LOGPREFIX "toshiba_acpi: "
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#define MY_ERR KERN_ERR MY_LOGPREFIX
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#define MY_NOTICE KERN_NOTICE MY_LOGPREFIX
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#define MY_INFO KERN_INFO MY_LOGPREFIX
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/* Toshiba ACPI method paths */
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#define METHOD_LCD_BRIGHTNESS "\\_SB_.PCI0.VGA_.LCD_._BCM"
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#define METHOD_HCI_1 "\\_SB_.VALD.GHCI"
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#define METHOD_HCI_2 "\\_SB_.VALZ.GHCI"
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#define METHOD_VIDEO_OUT "\\_SB_.VALX.DSSX"
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/* Toshiba HCI interface definitions
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*
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* HCI is Toshiba's "Hardware Control Interface" which is supposed to
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* be uniform across all their models. Ideally we would just call
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* dedicated ACPI methods instead of using this primitive interface.
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* However the ACPI methods seem to be incomplete in some areas (for
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* example they allow setting, but not reading, the LCD brightness value),
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* so this is still useful.
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*/
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#define HCI_WORDS 6
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/* operations */
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#define HCI_SET 0xff00
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#define HCI_GET 0xfe00
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/* return codes */
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#define HCI_SUCCESS 0x0000
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#define HCI_FAILURE 0x1000
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#define HCI_NOT_SUPPORTED 0x8000
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#define HCI_EMPTY 0x8c00
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/* registers */
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#define HCI_FAN 0x0004
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#define HCI_SYSTEM_EVENT 0x0016
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#define HCI_VIDEO_OUT 0x001c
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#define HCI_HOTKEY_EVENT 0x001e
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#define HCI_LCD_BRIGHTNESS 0x002a
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#define HCI_WIRELESS 0x0056
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/* field definitions */
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#define HCI_LCD_BRIGHTNESS_BITS 3
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#define HCI_LCD_BRIGHTNESS_SHIFT (16-HCI_LCD_BRIGHTNESS_BITS)
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#define HCI_LCD_BRIGHTNESS_LEVELS (1 << HCI_LCD_BRIGHTNESS_BITS)
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#define HCI_VIDEO_OUT_LCD 0x1
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#define HCI_VIDEO_OUT_CRT 0x2
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#define HCI_VIDEO_OUT_TV 0x4
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#define HCI_WIRELESS_KILL_SWITCH 0x01
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#define HCI_WIRELESS_BT_PRESENT 0x0f
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#define HCI_WIRELESS_BT_ATTACH 0x40
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#define HCI_WIRELESS_BT_POWER 0x80
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static const struct acpi_device_id toshiba_device_ids[] = {
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{"TOS6200", 0},
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{"TOS6208", 0},
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{"TOS1900", 0},
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{"", 0},
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};
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MODULE_DEVICE_TABLE(acpi, toshiba_device_ids);
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/* utility
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*/
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static __inline__ void _set_bit(u32 * word, u32 mask, int value)
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{
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*word = (*word & ~mask) | (mask * value);
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}
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/* acpi interface wrappers
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*/
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static int is_valid_acpi_path(const char *methodName)
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{
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acpi_handle handle;
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acpi_status status;
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status = acpi_get_handle(NULL, (char *)methodName, &handle);
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return !ACPI_FAILURE(status);
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}
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static int write_acpi_int(const char *methodName, int val)
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{
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struct acpi_object_list params;
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union acpi_object in_objs[1];
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acpi_status status;
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params.count = ARRAY_SIZE(in_objs);
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params.pointer = in_objs;
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in_objs[0].type = ACPI_TYPE_INTEGER;
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in_objs[0].integer.value = val;
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status = acpi_evaluate_object(NULL, (char *)methodName, ¶ms, NULL);
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return (status == AE_OK);
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}
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#if 0
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static int read_acpi_int(const char *methodName, int *pVal)
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{
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struct acpi_buffer results;
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union acpi_object out_objs[1];
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acpi_status status;
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results.length = sizeof(out_objs);
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results.pointer = out_objs;
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status = acpi_evaluate_object(0, (char *)methodName, 0, &results);
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*pVal = out_objs[0].integer.value;
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return (status == AE_OK) && (out_objs[0].type == ACPI_TYPE_INTEGER);
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}
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#endif
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static const char *method_hci /*= 0*/ ;
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/* Perform a raw HCI call. Here we don't care about input or output buffer
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* format.
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*/
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static acpi_status hci_raw(const u32 in[HCI_WORDS], u32 out[HCI_WORDS])
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{
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struct acpi_object_list params;
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union acpi_object in_objs[HCI_WORDS];
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struct acpi_buffer results;
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union acpi_object out_objs[HCI_WORDS + 1];
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acpi_status status;
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int i;
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params.count = HCI_WORDS;
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params.pointer = in_objs;
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for (i = 0; i < HCI_WORDS; ++i) {
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in_objs[i].type = ACPI_TYPE_INTEGER;
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in_objs[i].integer.value = in[i];
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}
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results.length = sizeof(out_objs);
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results.pointer = out_objs;
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status = acpi_evaluate_object(NULL, (char *)method_hci, ¶ms,
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&results);
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if ((status == AE_OK) && (out_objs->package.count <= HCI_WORDS)) {
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for (i = 0; i < out_objs->package.count; ++i) {
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out[i] = out_objs->package.elements[i].integer.value;
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}
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}
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return status;
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}
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/* common hci tasks (get or set one or two value)
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*
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* In addition to the ACPI status, the HCI system returns a result which
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* may be useful (such as "not supported").
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*/
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static acpi_status hci_write1(u32 reg, u32 in1, u32 * result)
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{
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u32 in[HCI_WORDS] = { HCI_SET, reg, in1, 0, 0, 0 };
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u32 out[HCI_WORDS];
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acpi_status status = hci_raw(in, out);
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*result = (status == AE_OK) ? out[0] : HCI_FAILURE;
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return status;
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}
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static acpi_status hci_read1(u32 reg, u32 * out1, u32 * result)
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{
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u32 in[HCI_WORDS] = { HCI_GET, reg, 0, 0, 0, 0 };
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u32 out[HCI_WORDS];
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acpi_status status = hci_raw(in, out);
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*out1 = out[2];
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*result = (status == AE_OK) ? out[0] : HCI_FAILURE;
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return status;
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}
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static acpi_status hci_write2(u32 reg, u32 in1, u32 in2, u32 *result)
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{
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u32 in[HCI_WORDS] = { HCI_SET, reg, in1, in2, 0, 0 };
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u32 out[HCI_WORDS];
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acpi_status status = hci_raw(in, out);
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*result = (status == AE_OK) ? out[0] : HCI_FAILURE;
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return status;
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}
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static acpi_status hci_read2(u32 reg, u32 *out1, u32 *out2, u32 *result)
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{
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u32 in[HCI_WORDS] = { HCI_GET, reg, *out1, *out2, 0, 0 };
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u32 out[HCI_WORDS];
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acpi_status status = hci_raw(in, out);
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*out1 = out[2];
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*out2 = out[3];
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*result = (status == AE_OK) ? out[0] : HCI_FAILURE;
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return status;
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}
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struct toshiba_acpi_dev {
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struct platform_device *p_dev;
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struct rfkill *bt_rfk;
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const char *bt_name;
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struct mutex mutex;
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};
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static struct toshiba_acpi_dev toshiba_acpi = {
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.bt_name = "Toshiba Bluetooth",
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};
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/* Bluetooth rfkill handlers */
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static u32 hci_get_bt_present(bool *present)
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{
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u32 hci_result;
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u32 value, value2;
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value = 0;
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value2 = 0;
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hci_read2(HCI_WIRELESS, &value, &value2, &hci_result);
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if (hci_result == HCI_SUCCESS)
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*present = (value & HCI_WIRELESS_BT_PRESENT) ? true : false;
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return hci_result;
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}
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static u32 hci_get_radio_state(bool *radio_state)
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{
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u32 hci_result;
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u32 value, value2;
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value = 0;
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value2 = 0x0001;
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hci_read2(HCI_WIRELESS, &value, &value2, &hci_result);
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*radio_state = value & HCI_WIRELESS_KILL_SWITCH;
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return hci_result;
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}
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static int bt_rfkill_set_block(void *data, bool blocked)
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{
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struct toshiba_acpi_dev *dev = data;
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u32 result1, result2;
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u32 value;
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int err;
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bool radio_state;
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value = (blocked == false);
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mutex_lock(&dev->mutex);
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if (hci_get_radio_state(&radio_state) != HCI_SUCCESS) {
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err = -EBUSY;
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goto out;
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}
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if (!radio_state) {
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err = 0;
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goto out;
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}
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hci_write2(HCI_WIRELESS, value, HCI_WIRELESS_BT_POWER, &result1);
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hci_write2(HCI_WIRELESS, value, HCI_WIRELESS_BT_ATTACH, &result2);
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if (result1 != HCI_SUCCESS || result2 != HCI_SUCCESS)
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err = -EBUSY;
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else
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err = 0;
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out:
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mutex_unlock(&dev->mutex);
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return err;
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}
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static void bt_rfkill_poll(struct rfkill *rfkill, void *data)
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{
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bool new_rfk_state;
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bool value;
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u32 hci_result;
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struct toshiba_acpi_dev *dev = data;
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mutex_lock(&dev->mutex);
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hci_result = hci_get_radio_state(&value);
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if (hci_result != HCI_SUCCESS) {
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/* Can't do anything useful */
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mutex_unlock(&dev->mutex);
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return;
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}
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new_rfk_state = value;
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mutex_unlock(&dev->mutex);
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if (rfkill_set_hw_state(rfkill, !new_rfk_state))
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bt_rfkill_set_block(data, true);
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}
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static const struct rfkill_ops toshiba_rfk_ops = {
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.set_block = bt_rfkill_set_block,
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.poll = bt_rfkill_poll,
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};
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static struct proc_dir_entry *toshiba_proc_dir /*= 0*/ ;
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static struct backlight_device *toshiba_backlight_device;
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static int force_fan;
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static int last_key_event;
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static int key_event_valid;
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static int get_lcd(struct backlight_device *bd)
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{
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u32 hci_result;
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u32 value;
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hci_read1(HCI_LCD_BRIGHTNESS, &value, &hci_result);
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if (hci_result == HCI_SUCCESS) {
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return (value >> HCI_LCD_BRIGHTNESS_SHIFT);
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} else
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return -EFAULT;
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}
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static int lcd_proc_show(struct seq_file *m, void *v)
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{
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int value = get_lcd(NULL);
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if (value >= 0) {
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seq_printf(m, "brightness: %d\n", value);
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seq_printf(m, "brightness_levels: %d\n",
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HCI_LCD_BRIGHTNESS_LEVELS);
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} else {
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printk(MY_ERR "Error reading LCD brightness\n");
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}
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return 0;
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}
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static int lcd_proc_open(struct inode *inode, struct file *file)
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{
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return single_open(file, lcd_proc_show, NULL);
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}
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static int set_lcd(int value)
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{
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u32 hci_result;
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value = value << HCI_LCD_BRIGHTNESS_SHIFT;
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hci_write1(HCI_LCD_BRIGHTNESS, value, &hci_result);
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if (hci_result != HCI_SUCCESS)
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return -EFAULT;
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return 0;
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}
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static int set_lcd_status(struct backlight_device *bd)
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{
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return set_lcd(bd->props.brightness);
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}
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static ssize_t lcd_proc_write(struct file *file, const char __user *buf,
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size_t count, loff_t *pos)
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{
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char cmd[42];
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size_t len;
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int value;
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int ret;
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len = min(count, sizeof(cmd) - 1);
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if (copy_from_user(cmd, buf, len))
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return -EFAULT;
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cmd[len] = '\0';
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if (sscanf(cmd, " brightness : %i", &value) == 1 &&
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value >= 0 && value < HCI_LCD_BRIGHTNESS_LEVELS) {
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ret = set_lcd(value);
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if (ret == 0)
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ret = count;
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} else {
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ret = -EINVAL;
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}
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return ret;
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}
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static const struct file_operations lcd_proc_fops = {
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.owner = THIS_MODULE,
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.open = lcd_proc_open,
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.read = seq_read,
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.llseek = seq_lseek,
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.release = single_release,
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.write = lcd_proc_write,
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};
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static int video_proc_show(struct seq_file *m, void *v)
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{
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u32 hci_result;
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u32 value;
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hci_read1(HCI_VIDEO_OUT, &value, &hci_result);
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if (hci_result == HCI_SUCCESS) {
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int is_lcd = (value & HCI_VIDEO_OUT_LCD) ? 1 : 0;
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int is_crt = (value & HCI_VIDEO_OUT_CRT) ? 1 : 0;
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int is_tv = (value & HCI_VIDEO_OUT_TV) ? 1 : 0;
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seq_printf(m, "lcd_out: %d\n", is_lcd);
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seq_printf(m, "crt_out: %d\n", is_crt);
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seq_printf(m, "tv_out: %d\n", is_tv);
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} else {
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printk(MY_ERR "Error reading video out status\n");
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}
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return 0;
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}
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static int video_proc_open(struct inode *inode, struct file *file)
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{
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return single_open(file, video_proc_show, NULL);
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}
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static ssize_t video_proc_write(struct file *file, const char __user *buf,
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size_t count, loff_t *pos)
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{
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char *cmd, *buffer;
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int value;
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int remain = count;
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int lcd_out = -1;
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int crt_out = -1;
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int tv_out = -1;
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u32 hci_result;
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u32 video_out;
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cmd = kmalloc(count + 1, GFP_KERNEL);
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if (!cmd)
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return -ENOMEM;
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if (copy_from_user(cmd, buf, count)) {
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kfree(cmd);
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return -EFAULT;
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}
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cmd[count] = '\0';
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buffer = cmd;
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/* scan expression. Multiple expressions may be delimited with ;
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*
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* NOTE: to keep scanning simple, invalid fields are ignored
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*/
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while (remain) {
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if (sscanf(buffer, " lcd_out : %i", &value) == 1)
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lcd_out = value & 1;
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else if (sscanf(buffer, " crt_out : %i", &value) == 1)
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crt_out = value & 1;
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else if (sscanf(buffer, " tv_out : %i", &value) == 1)
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tv_out = value & 1;
|
|
/* advance to one character past the next ; */
|
|
do {
|
|
++buffer;
|
|
--remain;
|
|
}
|
|
while (remain && *(buffer - 1) != ';');
|
|
}
|
|
|
|
kfree(cmd);
|
|
|
|
hci_read1(HCI_VIDEO_OUT, &video_out, &hci_result);
|
|
if (hci_result == HCI_SUCCESS) {
|
|
unsigned int new_video_out = video_out;
|
|
if (lcd_out != -1)
|
|
_set_bit(&new_video_out, HCI_VIDEO_OUT_LCD, lcd_out);
|
|
if (crt_out != -1)
|
|
_set_bit(&new_video_out, HCI_VIDEO_OUT_CRT, crt_out);
|
|
if (tv_out != -1)
|
|
_set_bit(&new_video_out, HCI_VIDEO_OUT_TV, tv_out);
|
|
/* To avoid unnecessary video disruption, only write the new
|
|
* video setting if something changed. */
|
|
if (new_video_out != video_out)
|
|
write_acpi_int(METHOD_VIDEO_OUT, new_video_out);
|
|
} else {
|
|
return -EFAULT;
|
|
}
|
|
|
|
return count;
|
|
}
|
|
|
|
static const struct file_operations video_proc_fops = {
|
|
.owner = THIS_MODULE,
|
|
.open = video_proc_open,
|
|
.read = seq_read,
|
|
.llseek = seq_lseek,
|
|
.release = single_release,
|
|
.write = video_proc_write,
|
|
};
|
|
|
|
static int fan_proc_show(struct seq_file *m, void *v)
|
|
{
|
|
u32 hci_result;
|
|
u32 value;
|
|
|
|
hci_read1(HCI_FAN, &value, &hci_result);
|
|
if (hci_result == HCI_SUCCESS) {
|
|
seq_printf(m, "running: %d\n", (value > 0));
|
|
seq_printf(m, "force_on: %d\n", force_fan);
|
|
} else {
|
|
printk(MY_ERR "Error reading fan status\n");
|
|
}
|
|
|
|
return 0;
|
|
}
|
|
|
|
static int fan_proc_open(struct inode *inode, struct file *file)
|
|
{
|
|
return single_open(file, fan_proc_show, NULL);
|
|
}
|
|
|
|
static ssize_t fan_proc_write(struct file *file, const char __user *buf,
|
|
size_t count, loff_t *pos)
|
|
{
|
|
char cmd[42];
|
|
size_t len;
|
|
int value;
|
|
u32 hci_result;
|
|
|
|
len = min(count, sizeof(cmd) - 1);
|
|
if (copy_from_user(cmd, buf, len))
|
|
return -EFAULT;
|
|
cmd[len] = '\0';
|
|
|
|
if (sscanf(cmd, " force_on : %i", &value) == 1 &&
|
|
value >= 0 && value <= 1) {
|
|
hci_write1(HCI_FAN, value, &hci_result);
|
|
if (hci_result != HCI_SUCCESS)
|
|
return -EFAULT;
|
|
else
|
|
force_fan = value;
|
|
} else {
|
|
return -EINVAL;
|
|
}
|
|
|
|
return count;
|
|
}
|
|
|
|
static const struct file_operations fan_proc_fops = {
|
|
.owner = THIS_MODULE,
|
|
.open = fan_proc_open,
|
|
.read = seq_read,
|
|
.llseek = seq_lseek,
|
|
.release = single_release,
|
|
.write = fan_proc_write,
|
|
};
|
|
|
|
static int keys_proc_show(struct seq_file *m, void *v)
|
|
{
|
|
u32 hci_result;
|
|
u32 value;
|
|
|
|
if (!key_event_valid) {
|
|
hci_read1(HCI_SYSTEM_EVENT, &value, &hci_result);
|
|
if (hci_result == HCI_SUCCESS) {
|
|
key_event_valid = 1;
|
|
last_key_event = value;
|
|
} else if (hci_result == HCI_EMPTY) {
|
|
/* better luck next time */
|
|
} else if (hci_result == HCI_NOT_SUPPORTED) {
|
|
/* This is a workaround for an unresolved issue on
|
|
* some machines where system events sporadically
|
|
* become disabled. */
|
|
hci_write1(HCI_SYSTEM_EVENT, 1, &hci_result);
|
|
printk(MY_NOTICE "Re-enabled hotkeys\n");
|
|
} else {
|
|
printk(MY_ERR "Error reading hotkey status\n");
|
|
goto end;
|
|
}
|
|
}
|
|
|
|
seq_printf(m, "hotkey_ready: %d\n", key_event_valid);
|
|
seq_printf(m, "hotkey: 0x%04x\n", last_key_event);
|
|
end:
|
|
return 0;
|
|
}
|
|
|
|
static int keys_proc_open(struct inode *inode, struct file *file)
|
|
{
|
|
return single_open(file, keys_proc_show, NULL);
|
|
}
|
|
|
|
static ssize_t keys_proc_write(struct file *file, const char __user *buf,
|
|
size_t count, loff_t *pos)
|
|
{
|
|
char cmd[42];
|
|
size_t len;
|
|
int value;
|
|
|
|
len = min(count, sizeof(cmd) - 1);
|
|
if (copy_from_user(cmd, buf, len))
|
|
return -EFAULT;
|
|
cmd[len] = '\0';
|
|
|
|
if (sscanf(cmd, " hotkey_ready : %i", &value) == 1 && value == 0) {
|
|
key_event_valid = 0;
|
|
} else {
|
|
return -EINVAL;
|
|
}
|
|
|
|
return count;
|
|
}
|
|
|
|
static const struct file_operations keys_proc_fops = {
|
|
.owner = THIS_MODULE,
|
|
.open = keys_proc_open,
|
|
.read = seq_read,
|
|
.llseek = seq_lseek,
|
|
.release = single_release,
|
|
.write = keys_proc_write,
|
|
};
|
|
|
|
static int version_proc_show(struct seq_file *m, void *v)
|
|
{
|
|
seq_printf(m, "driver: %s\n", TOSHIBA_ACPI_VERSION);
|
|
seq_printf(m, "proc_interface: %d\n", PROC_INTERFACE_VERSION);
|
|
return 0;
|
|
}
|
|
|
|
static int version_proc_open(struct inode *inode, struct file *file)
|
|
{
|
|
return single_open(file, version_proc_show, PDE(inode)->data);
|
|
}
|
|
|
|
static const struct file_operations version_proc_fops = {
|
|
.owner = THIS_MODULE,
|
|
.open = version_proc_open,
|
|
.read = seq_read,
|
|
.llseek = seq_lseek,
|
|
.release = single_release,
|
|
};
|
|
|
|
/* proc and module init
|
|
*/
|
|
|
|
#define PROC_TOSHIBA "toshiba"
|
|
|
|
static acpi_status __init add_device(void)
|
|
{
|
|
proc_create("lcd", S_IRUGO | S_IWUSR, toshiba_proc_dir, &lcd_proc_fops);
|
|
proc_create("video", S_IRUGO | S_IWUSR, toshiba_proc_dir, &video_proc_fops);
|
|
proc_create("fan", S_IRUGO | S_IWUSR, toshiba_proc_dir, &fan_proc_fops);
|
|
proc_create("keys", S_IRUGO | S_IWUSR, toshiba_proc_dir, &keys_proc_fops);
|
|
proc_create("version", S_IRUGO, toshiba_proc_dir, &version_proc_fops);
|
|
|
|
return AE_OK;
|
|
}
|
|
|
|
static acpi_status remove_device(void)
|
|
{
|
|
remove_proc_entry("lcd", toshiba_proc_dir);
|
|
remove_proc_entry("video", toshiba_proc_dir);
|
|
remove_proc_entry("fan", toshiba_proc_dir);
|
|
remove_proc_entry("keys", toshiba_proc_dir);
|
|
remove_proc_entry("version", toshiba_proc_dir);
|
|
return AE_OK;
|
|
}
|
|
|
|
static struct backlight_ops toshiba_backlight_data = {
|
|
.get_brightness = get_lcd,
|
|
.update_status = set_lcd_status,
|
|
};
|
|
|
|
static void toshiba_acpi_exit(void)
|
|
{
|
|
if (toshiba_acpi.bt_rfk) {
|
|
rfkill_unregister(toshiba_acpi.bt_rfk);
|
|
rfkill_destroy(toshiba_acpi.bt_rfk);
|
|
}
|
|
|
|
if (toshiba_backlight_device)
|
|
backlight_device_unregister(toshiba_backlight_device);
|
|
|
|
remove_device();
|
|
|
|
if (toshiba_proc_dir)
|
|
remove_proc_entry(PROC_TOSHIBA, acpi_root_dir);
|
|
|
|
platform_device_unregister(toshiba_acpi.p_dev);
|
|
|
|
return;
|
|
}
|
|
|
|
static int __init toshiba_acpi_init(void)
|
|
{
|
|
acpi_status status = AE_OK;
|
|
u32 hci_result;
|
|
bool bt_present;
|
|
int ret = 0;
|
|
|
|
if (acpi_disabled)
|
|
return -ENODEV;
|
|
|
|
/* simple device detection: look for HCI method */
|
|
if (is_valid_acpi_path(METHOD_HCI_1))
|
|
method_hci = METHOD_HCI_1;
|
|
else if (is_valid_acpi_path(METHOD_HCI_2))
|
|
method_hci = METHOD_HCI_2;
|
|
else
|
|
return -ENODEV;
|
|
|
|
printk(MY_INFO "Toshiba Laptop ACPI Extras version %s\n",
|
|
TOSHIBA_ACPI_VERSION);
|
|
printk(MY_INFO " HCI method: %s\n", method_hci);
|
|
|
|
mutex_init(&toshiba_acpi.mutex);
|
|
|
|
toshiba_acpi.p_dev = platform_device_register_simple("toshiba_acpi",
|
|
-1, NULL, 0);
|
|
if (IS_ERR(toshiba_acpi.p_dev)) {
|
|
ret = PTR_ERR(toshiba_acpi.p_dev);
|
|
printk(MY_ERR "unable to register platform device\n");
|
|
toshiba_acpi.p_dev = NULL;
|
|
toshiba_acpi_exit();
|
|
return ret;
|
|
}
|
|
|
|
force_fan = 0;
|
|
key_event_valid = 0;
|
|
|
|
/* enable event fifo */
|
|
hci_write1(HCI_SYSTEM_EVENT, 1, &hci_result);
|
|
|
|
toshiba_proc_dir = proc_mkdir(PROC_TOSHIBA, acpi_root_dir);
|
|
if (!toshiba_proc_dir) {
|
|
toshiba_acpi_exit();
|
|
return -ENODEV;
|
|
} else {
|
|
status = add_device();
|
|
if (ACPI_FAILURE(status)) {
|
|
toshiba_acpi_exit();
|
|
return -ENODEV;
|
|
}
|
|
}
|
|
|
|
toshiba_backlight_device = backlight_device_register("toshiba",
|
|
&toshiba_acpi.p_dev->dev,
|
|
NULL,
|
|
&toshiba_backlight_data);
|
|
if (IS_ERR(toshiba_backlight_device)) {
|
|
ret = PTR_ERR(toshiba_backlight_device);
|
|
|
|
printk(KERN_ERR "Could not register toshiba backlight device\n");
|
|
toshiba_backlight_device = NULL;
|
|
toshiba_acpi_exit();
|
|
return ret;
|
|
}
|
|
toshiba_backlight_device->props.max_brightness = HCI_LCD_BRIGHTNESS_LEVELS - 1;
|
|
|
|
/* Register rfkill switch for Bluetooth */
|
|
if (hci_get_bt_present(&bt_present) == HCI_SUCCESS && bt_present) {
|
|
toshiba_acpi.bt_rfk = rfkill_alloc(toshiba_acpi.bt_name,
|
|
&toshiba_acpi.p_dev->dev,
|
|
RFKILL_TYPE_BLUETOOTH,
|
|
&toshiba_rfk_ops,
|
|
&toshiba_acpi);
|
|
if (!toshiba_acpi.bt_rfk) {
|
|
printk(MY_ERR "unable to allocate rfkill device\n");
|
|
toshiba_acpi_exit();
|
|
return -ENOMEM;
|
|
}
|
|
|
|
ret = rfkill_register(toshiba_acpi.bt_rfk);
|
|
if (ret) {
|
|
printk(MY_ERR "unable to register rfkill device\n");
|
|
rfkill_destroy(toshiba_acpi.bt_rfk);
|
|
toshiba_acpi_exit();
|
|
return ret;
|
|
}
|
|
}
|
|
|
|
return 0;
|
|
}
|
|
|
|
module_init(toshiba_acpi_init);
|
|
module_exit(toshiba_acpi_exit);
|