diff options
| -rw-r--r-- | drivers/video/backlight/Kconfig | 8 | ||||
| -rw-r--r-- | drivers/video/backlight/Makefile | 2 | ||||
| -rw-r--r-- | drivers/video/backlight/mbp_nvidia_bl.c | 366 |
3 files changed, 101 insertions, 275 deletions
diff --git a/drivers/video/backlight/Kconfig b/drivers/video/backlight/Kconfig index 39a4cd258d5..aa8cf9d2e34 100644 --- a/drivers/video/backlight/Kconfig +++ b/drivers/video/backlight/Kconfig @@ -244,12 +244,12 @@ config BACKLIGHT_MAX8925 If you have a LCD backlight connected to the WLED output of MAX8925 WLED output, say Y here to enable this driver. -config BACKLIGHT_MBP_NVIDIA - tristate "MacBook Pro Nvidia Backlight Driver" +config BACKLIGHT_MACBOOK + tristate "MacBook Backlight Driver" depends on X86 help - If you have an Apple Macbook Pro with Nvidia graphics hardware say Y - to enable a driver for its backlight + If you have an Apple Macbook say Y to enable a driver for its + backlight config BACKLIGHT_TOSA tristate "Sharp SL-6000 Backlight Driver" diff --git a/drivers/video/backlight/Makefile b/drivers/video/backlight/Makefile index 457996c97f5..988d7cd159e 100644 --- a/drivers/video/backlight/Makefile +++ b/drivers/video/backlight/Makefile @@ -27,7 +27,7 @@ obj-$(CONFIG_BACKLIGHT_CARILLO_RANCH) += cr_bllcd.o obj-$(CONFIG_BACKLIGHT_PWM) += pwm_bl.o obj-$(CONFIG_BACKLIGHT_DA903X) += da903x_bl.o obj-$(CONFIG_BACKLIGHT_MAX8925) += max8925_bl.o -obj-$(CONFIG_BACKLIGHT_MBP_NVIDIA) += mbp_nvidia_bl.o +obj-$(CONFIG_BACKLIGHT_MACBOOK) += mbp_nvidia_bl.o obj-$(CONFIG_BACKLIGHT_TOSA) += tosa_bl.o obj-$(CONFIG_BACKLIGHT_SAHARA) += kb3886_bl.o obj-$(CONFIG_BACKLIGHT_WM831X) += wm831x_bl.o diff --git a/drivers/video/backlight/mbp_nvidia_bl.c b/drivers/video/backlight/mbp_nvidia_bl.c index 74c33944aa8..b22cfb24bd5 100644 --- a/drivers/video/backlight/mbp_nvidia_bl.c +++ b/drivers/video/backlight/mbp_nvidia_bl.c @@ -1,5 +1,5 @@ /* - * Backlight Driver for Nvidia 8600 in Macbook Pro + * Backlight Driver for Macbooks * * Copyright (c) Red Hat <mjg@redhat.com> * Based on code from Pommed: @@ -19,23 +19,27 @@ #include <linux/module.h> #include <linux/kernel.h> #include <linux/init.h> -#include <linux/platform_device.h> #include <linux/backlight.h> #include <linux/err.h> -#include <linux/dmi.h> #include <linux/io.h> +#include <linux/pci.h> +#include <linux/acpi.h> -static struct backlight_device *mbp_backlight_device; +static struct backlight_device *mb_backlight_device; -/* Structure to be passed to the DMI_MATCH function. */ -struct dmi_match_data { +struct hw_data { /* I/O resource to allocate. */ unsigned long iostart; unsigned long iolen; /* Backlight operations structure. */ const struct backlight_ops backlight_ops; + void (*set_brightness)(int); }; +static const struct hw_data *hw_data; + +#define DRIVER "mb_backlight: " + /* Module parameters. */ static int debug; module_param_named(debug, debug, int, 0644); @@ -44,16 +48,21 @@ MODULE_PARM_DESC(debug, "Set to one to enable debugging messages."); /* * Implementation for MacBooks with Intel chipset. */ +static void intel_chipset_set_brightness(int intensity) +{ + outb(0x04 | (intensity << 4), 0xb3); + outb(0xbf, 0xb2); +} + static int intel_chipset_send_intensity(struct backlight_device *bd) { int intensity = bd->props.brightness; if (debug) - printk(KERN_DEBUG "mbp_nvidia_bl: setting brightness to %d\n", + printk(KERN_DEBUG DRIVER "setting brightness to %d\n", intensity); - outb(0x04 | (intensity << 4), 0xb3); - outb(0xbf, 0xb2); + intel_chipset_set_brightness(intensity); return 0; } @@ -66,35 +75,41 @@ static int intel_chipset_get_intensity(struct backlight_device *bd) intensity = inb(0xb3) >> 4; if (debug) - printk(KERN_DEBUG "mbp_nvidia_bl: read brightness of %d\n", + printk(KERN_DEBUG DRIVER "read brightness of %d\n", intensity); return intensity; } -static const struct dmi_match_data intel_chipset_data = { +static const struct hw_data intel_chipset_data = { .iostart = 0xb2, .iolen = 2, .backlight_ops = { .options = BL_CORE_SUSPENDRESUME, .get_brightness = intel_chipset_get_intensity, .update_status = intel_chipset_send_intensity, - } + }, + .set_brightness = intel_chipset_set_brightness, }; /* * Implementation for MacBooks with Nvidia chipset. */ +static void nvidia_chipset_set_brightness(int intensity) +{ + outb(0x04 | (intensity << 4), 0x52f); + outb(0xbf, 0x52e); +} + static int nvidia_chipset_send_intensity(struct backlight_device *bd) { int intensity = bd->props.brightness; if (debug) - printk(KERN_DEBUG "mbp_nvidia_bl: setting brightness to %d\n", + printk(KERN_DEBUG DRIVER "setting brightness to %d\n", intensity); - outb(0x04 | (intensity << 4), 0x52f); - outb(0xbf, 0x52e); + nvidia_chipset_set_brightness(intensity); return 0; } @@ -107,295 +122,106 @@ static int nvidia_chipset_get_intensity(struct backlight_device *bd) intensity = inb(0x52f) >> 4; if (debug) - printk(KERN_DEBUG "mbp_nvidia_bl: read brightness of %d\n", + printk(KERN_DEBUG DRIVER "read brightness of %d\n", intensity); return intensity; } -static const struct dmi_match_data nvidia_chipset_data = { +static const struct hw_data nvidia_chipset_data = { .iostart = 0x52e, .iolen = 2, .backlight_ops = { .options = BL_CORE_SUSPENDRESUME, .get_brightness = nvidia_chipset_get_intensity, .update_status = nvidia_chipset_send_intensity - } + }, + .set_brightness = nvidia_chipset_set_brightness, }; -/* - * DMI matching. - */ -static /* const */ struct dmi_match_data *driver_data; - -static int mbp_dmi_match(const struct dmi_system_id *id) +static int __devinit mb_bl_add(struct acpi_device *dev) { - driver_data = id->driver_data; + struct backlight_properties props; + struct pci_dev *host; - printk(KERN_INFO "mbp_nvidia_bl: %s detected\n", id->ident); - return 1; -} + host = pci_get_bus_and_slot(0, 0); -static const struct dmi_system_id __initdata mbp_device_table[] = { - { - .callback = mbp_dmi_match, - .ident = "MacBook 1,1", - .matches = { - DMI_MATCH(DMI_SYS_VENDOR, "Apple Computer, Inc."), - DMI_MATCH(DMI_PRODUCT_NAME, "MacBook1,1"), - }, - .driver_data = (void *)&intel_chipset_data, - }, - { - .callback = mbp_dmi_match, - .ident = "MacBook 2,1", - .matches = { - DMI_MATCH(DMI_SYS_VENDOR, "Apple Inc."), - DMI_MATCH(DMI_PRODUCT_NAME, "MacBook2,1"), - }, - .driver_data = (void *)&intel_chipset_data, - }, - { - .callback = mbp_dmi_match, - .ident = "MacBook 3,1", - .matches = { - DMI_MATCH(DMI_SYS_VENDOR, "Apple Inc."), - DMI_MATCH(DMI_PRODUCT_NAME, "MacBook3,1"), - }, - .driver_data = (void *)&intel_chipset_data, - }, - { - .callback = mbp_dmi_match, - .ident = "MacBook 4,1", - .matches = { - DMI_MATCH(DMI_SYS_VENDOR, "Apple Inc."), - DMI_MATCH(DMI_PRODUCT_NAME, "MacBook4,1"), - }, - .driver_data = (void *)&intel_chipset_data, - }, - { - .callback = mbp_dmi_match, - .ident = "MacBook 4,2", - .matches = { - DMI_MATCH(DMI_SYS_VENDOR, "Apple Inc."), - DMI_MATCH(DMI_PRODUCT_NAME, "MacBook4,2"), - }, - .driver_data = (void *)&intel_chipset_data, - }, - { - .callback = mbp_dmi_match, - .ident = "MacBookPro 1,1", - .matches = { - DMI_MATCH(DMI_SYS_VENDOR, "Apple Inc."), - DMI_MATCH(DMI_PRODUCT_NAME, "MacBookPro1,1"), - }, - .driver_data = (void *)&intel_chipset_data, - }, - { - .callback = mbp_dmi_match, - .ident = "MacBookPro 1,2", - .matches = { - DMI_MATCH(DMI_SYS_VENDOR, "Apple Inc."), - DMI_MATCH(DMI_PRODUCT_NAME, "MacBookPro1,2"), - }, - .driver_data = (void *)&intel_chipset_data, - }, - { - .callback = mbp_dmi_match, - .ident = "MacBookPro 2,1", - .matches = { - DMI_MATCH(DMI_SYS_VENDOR, "Apple Inc."), - DMI_MATCH(DMI_PRODUCT_NAME, "MacBookPro2,1"), - }, - .driver_data = (void *)&intel_chipset_data, - }, - { - .callback = mbp_dmi_match, - .ident = "MacBookPro 2,2", - .matches = { - DMI_MATCH(DMI_SYS_VENDOR, "Apple Inc."), - DMI_MATCH(DMI_PRODUCT_NAME, "MacBookPro2,2"), - }, - .driver_data = (void *)&intel_chipset_data, - }, - { - .callback = mbp_dmi_match, - .ident = "MacBookPro 3,1", - .matches = { - DMI_MATCH(DMI_SYS_VENDOR, "Apple Inc."), - DMI_MATCH(DMI_PRODUCT_NAME, "MacBookPro3,1"), - }, - .driver_data = (void *)&intel_chipset_data, - }, - { - .callback = mbp_dmi_match, - .ident = "MacBookPro 3,2", - .matches = { - DMI_MATCH(DMI_SYS_VENDOR, "Apple Inc."), - DMI_MATCH(DMI_PRODUCT_NAME, "MacBookPro3,2"), - }, - .driver_data = (void *)&intel_chipset_data, - }, - { - .callback = mbp_dmi_match, - .ident = "MacBookPro 4,1", - .matches = { - DMI_MATCH(DMI_SYS_VENDOR, "Apple Inc."), - DMI_MATCH(DMI_PRODUCT_NAME, "MacBookPro4,1"), - }, - .driver_data = (void *)&intel_chipset_data, - }, - { - .callback = mbp_dmi_match, - .ident = "MacBookAir 1,1", - .matches = { - DMI_MATCH(DMI_SYS_VENDOR, "Apple Inc."), - DMI_MATCH(DMI_PRODUCT_NAME, "MacBookAir1,1"), - }, - .driver_data = (void *)&intel_chipset_data, - }, - { - .callback = mbp_dmi_match, - .ident = "MacBook 5,1", - .matches = { - DMI_MATCH(DMI_SYS_VENDOR, "Apple Inc."), - DMI_MATCH(DMI_PRODUCT_NAME, "MacBook5,1"), - }, - .driver_data = (void *)&nvidia_chipset_data, - }, - { - .callback = mbp_dmi_match, - .ident = "MacBook 5,2", - .matches = { - DMI_MATCH(DMI_SYS_VENDOR, "Apple Inc."), - DMI_MATCH(DMI_PRODUCT_NAME, "MacBook5,2"), - }, - .driver_data = (void *)&nvidia_chipset_data, - }, - { - .callback = mbp_dmi_match, - .ident = "MacBook 6,1", - .matches = { - DMI_MATCH(DMI_SYS_VENDOR, "Apple Inc."), - DMI_MATCH(DMI_PRODUCT_NAME, "MacBook6,1"), - }, - .driver_data = (void *)&nvidia_chipset_data, - }, - { - .callback = mbp_dmi_match, - .ident = "MacBookAir 2,1", - .matches = { - DMI_MATCH(DMI_SYS_VENDOR, "Apple Inc."), - DMI_MATCH(DMI_PRODUCT_NAME, "MacBookAir2,1"), - }, - .driver_data = (void *)&nvidia_chipset_data, - }, - { - .callback = mbp_dmi_match, - .ident = "MacBookPro 5,1", - .matches = { - DMI_MATCH(DMI_SYS_VENDOR, "Apple Inc."), - DMI_MATCH(DMI_PRODUCT_NAME, "MacBookPro5,1"), - }, - .driver_data = (void *)&nvidia_chipset_data, - }, - { - .callback = mbp_dmi_match, - .ident = "MacBookPro 5,2", - .matches = { - DMI_MATCH(DMI_SYS_VENDOR, "Apple Inc."), - DMI_MATCH(DMI_PRODUCT_NAME, "MacBookPro5,2"), - }, - .driver_data = (void *)&nvidia_chipset_data, - }, - { - .callback = mbp_dmi_match, - .ident = "MacBookPro 5,3", - .matches = { - DMI_MATCH(DMI_SYS_VENDOR, "Apple Inc."), - DMI_MATCH(DMI_PRODUCT_NAME, "MacBookPro5,3"), - }, - .driver_data = (void *)&nvidia_chipset_data, - }, - { - .callback = mbp_dmi_match, - .ident = "MacBookPro 5,4", - .matches = { - DMI_MATCH(DMI_SYS_VENDOR, "Apple Inc."), - DMI_MATCH(DMI_PRODUCT_NAME, "MacBookPro5,4"), - }, - .driver_data = (void *)&nvidia_chipset_data, - }, - { - .callback = mbp_dmi_match, - .ident = "MacBookPro 5,5", - .matches = { - DMI_MATCH(DMI_SYS_VENDOR, "Apple Inc."), - DMI_MATCH(DMI_PRODUCT_NAME, "MacBookPro5,5"), - }, - .driver_data = (void *)&nvidia_chipset_data, - }, - { - .callback = mbp_dmi_match, - .ident = "MacBookAir 3,1", - .matches = { - DMI_MATCH(DMI_SYS_VENDOR, "Apple Inc."), - DMI_MATCH(DMI_PRODUCT_NAME, "MacBookAir3,1"), - }, - .driver_data = (void *)&nvidia_chipset_data, - }, - { - .callback = mbp_dmi_match, - .ident = "MacBookAir 3,2", - .matches = { - DMI_MATCH(DMI_SYS_VENDOR, "Apple Inc."), - DMI_MATCH(DMI_PRODUCT_NAME, "MacBookAir3,2"), - }, - .driver_data = (void *)&nvidia_chipset_data, - }, - { } -}; + if (!host) { + printk(KERN_ERR DRIVER "unable to find PCI host\n"); + return -ENODEV; + } -static int __init mbp_init(void) -{ - struct backlight_properties props; - if (!dmi_check_system(mbp_device_table)) + if (host->vendor == PCI_VENDOR_ID_INTEL) + hw_data = &intel_chipset_data; + else if (host->vendor == PCI_VENDOR_ID_NVIDIA) + hw_data = &nvidia_chipset_data; + + pci_dev_put(host); + + if (!hw_data) { + printk(KERN_ERR DRIVER "unknown hardware\n"); return -ENODEV; + } - if (!request_region(driver_data->iostart, driver_data->iolen, - "Macbook Pro backlight")) + if (!request_region(hw_data->iostart, hw_data->iolen, + "Macbook backlight")) return -ENXIO; memset(&props, 0, sizeof(struct backlight_properties)); props.type = BACKLIGHT_PLATFORM; props.max_brightness = 15; - mbp_backlight_device = backlight_device_register("mbp_backlight", NULL, - NULL, - &driver_data->backlight_ops, - &props); - if (IS_ERR(mbp_backlight_device)) { - release_region(driver_data->iostart, driver_data->iolen); - return PTR_ERR(mbp_backlight_device); + mb_backlight_device = backlight_device_register("mb_backlight", NULL, + NULL, &hw_data->backlight_ops, &props); + + if (IS_ERR(mb_backlight_device)) { + release_region(hw_data->iostart, hw_data->iolen); + return PTR_ERR(mb_backlight_device); } - mbp_backlight_device->props.brightness = - driver_data->backlight_ops.get_brightness(mbp_backlight_device); - backlight_update_status(mbp_backlight_device); + mb_backlight_device->props.brightness = + hw_data->backlight_ops.get_brightness(mb_backlight_device); + backlight_update_status(mb_backlight_device); return 0; } -static void __exit mbp_exit(void) +static int __devexit mb_bl_remove(struct acpi_device *dev, int type) { - backlight_device_unregister(mbp_backlight_device); + backlight_device_unregister(mb_backlight_device); - release_region(driver_data->iostart, driver_data->iolen); + release_region(hw_data->iostart, hw_data->iolen); + hw_data = NULL; + return 0; +} + +static const struct acpi_device_id mb_bl_ids[] = { + {"APP0002", 0}, + {"", 0}, +}; + +static struct acpi_driver mb_bl_driver = { + .name = "Macbook backlight", + .ids = mb_bl_ids, + .ops = { + .add = mb_bl_add, + .remove = mb_bl_remove, + }, +}; + +static int __init mb_init(void) +{ + return acpi_bus_register_driver(&mb_bl_driver); +} + +static void __exit mb_exit(void) +{ + acpi_bus_unregister_driver(&mb_bl_driver); } -module_init(mbp_init); -module_exit(mbp_exit); +module_init(mb_init); +module_exit(mb_exit); MODULE_AUTHOR("Matthew Garrett <mjg@redhat.com>"); -MODULE_DESCRIPTION("Nvidia-based Macbook Pro Backlight Driver"); +MODULE_DESCRIPTION("Macbook Backlight Driver"); MODULE_LICENSE("GPL"); -MODULE_DEVICE_TABLE(dmi, mbp_device_table); +MODULE_DEVICE_TABLE(acpi, mb_bl_ids); |