diff options
Diffstat (limited to 'drivers/misc/asus-laptop.c')
| -rw-r--r-- | drivers/misc/asus-laptop.c | 82 |
1 files changed, 82 insertions, 0 deletions
diff --git a/drivers/misc/asus-laptop.c b/drivers/misc/asus-laptop.c index 58ab44dc52d8..979daa6755a7 100644 --- a/drivers/misc/asus-laptop.c +++ b/drivers/misc/asus-laptop.c @@ -125,6 +125,23 @@ ASUS_HANDLE(lcd_switch, "\\_SB.PCI0.SBRG.EC0._Q10", /* All new models */ "\\_SB.PCI0.PX40.Q10", /* S1x */ "\\Q10"); /* A2x, L2D, L3D, M2E */ +/* Display */ +ASUS_HANDLE(display_set, ASUS_HOTK_PREFIX "SDSP"); +ASUS_HANDLE(display_get, + "\\_SB.PCI0.P0P1.VGA.GETD", /* A6B, A6K A6R A7D F3JM L4R M6R A3G + M6A M6V VX-1 V6J V6V W3Z */ + "\\_SB.PCI0.P0P2.VGA.GETD", /* A3E A4K, A4D A4L A6J A7J A8J Z71V M9V + S5A M5A z33A W1Jc W2V */ + "\\_SB.PCI0.P0P3.VGA.GETD", /* A6V A6Q */ + "\\_SB.PCI0.P0PA.VGA.GETD", /* A6T, A6M */ + "\\_SB.PCI0.PCI1.VGAC.NMAP", /* L3C */ + "\\_SB.PCI0.VGA.GETD", /* Z96F */ + "\\ACTD", /* A2D */ + "\\ADVG", /* A4G Z71A W1N W5A W5F M2N M3N M5N M6N S1N S5N */ + "\\DNXT", /* P30 */ + "\\INFB", /* A2H D1 L2D L3D L3H L2E L5D L5C M1A M2E L4L W3V */ + "\\SSTE"); /* A3F A6F A3N A3L M6N W3N W6A */ + /* * This is the main structure, we can use it to store anything interesting * about the hotk device @@ -491,6 +508,60 @@ static ssize_t store_bluetooth(struct device *dev, struct device_attribute *attr return store_status(buf, count, bt_switch_handle, BT_ON, 0); } +/* + * Display + */ +static void set_display(int value) +{ + /* no sanity check needed for now */ + if (!write_acpi_int(display_set_handle, NULL, value, NULL)) + printk(ASUS_WARNING "Error setting display\n"); + return; +} + +static int read_display(void) +{ + int value = 0; + + /* In most of the case, we know how to set the display, but sometime + we can't read it */ + if(display_get_handle) { + if (!read_acpi_int(display_get_handle, NULL, &value, NULL)) + printk(ASUS_WARNING "Error reading display status\n"); + } + + value &= 0x0F; /* needed for some models, shouldn't hurt others */ + + return value; +} +/* + * Now, *this* one could be more user-friendly, but so far, no-one has + * complained. The significance of bits is the same as in store_disp() + */ +static ssize_t show_disp(struct device *dev, + struct device_attribute *attr, char *buf) +{ + return sprintf(buf, "%d\n", read_display()); +} + +/* + * Experimental support for display switching. As of now: 1 should activate + * the LCD output, 2 should do for CRT, 4 for TV-Out and 8 for DVI. + * Any combination (bitwise) of these will suffice. I never actually tested 4 + * displays hooked up simultaneously, so be warned. See the acpi4asus README + * for more info. + */ +static ssize_t store_disp(struct device *dev, struct device_attribute *attr, + const char *buf, size_t count) +{ + int rv, value; + + rv = parse_arg(buf, count, &value); + if (rv > 0) + set_display(value); + return rv; +} + static void asus_hotk_notify(acpi_handle handle, u32 event, void *data) { /* TODO Find a better way to handle events count. */ @@ -535,11 +606,13 @@ static void asus_hotk_notify(acpi_handle handle, u32 event, void *data) static ASUS_CREATE_DEVICE_ATTR(infos); static ASUS_CREATE_DEVICE_ATTR(wlan); static ASUS_CREATE_DEVICE_ATTR(bluetooth); +static ASUS_CREATE_DEVICE_ATTR(display); static struct attribute *asuspf_attributes[] = { &dev_attr_infos.attr, &dev_attr_wlan.attr, &dev_attr_bluetooth.attr, + &dev_attr_display.attr, NULL }; @@ -567,6 +640,12 @@ static void asus_hotk_add_fs(void) if (bt_switch_handle) ASUS_SET_DEVICE_ATTR(bluetooth, 0644, show_bluetooth, store_bluetooth); + + if (display_set_handle && display_get_handle) + ASUS_SET_DEVICE_ATTR(display, 0644, show_disp, store_disp); + else if(display_set_handle) + ASUS_SET_DEVICE_ATTR(display, 0200, NULL, store_disp); + } static int asus_handle_init(char *name, acpi_handle *handle, @@ -683,6 +762,9 @@ static int asus_hotk_get_info(void) ASUS_HANDLE_INIT(lcd_switch); + ASUS_HANDLE_INIT(display_set); + ASUS_HANDLE_INIT(display_get); + kfree(model); return AE_OK; |