#include <linux/pci.h>
#include <video/vga.h>
+static bool request_mem_succeeded = false;
+
static struct fb_var_screeninfo efifb_defined __devinitdata = {
.activate = FB_ACTIVATE_NOW,
.height = -1,
M_MB_7_1, /* MacBook, 7th rev. */
M_MB_SR, /* MacBook, 2nd gen, (Santa Rosa) */
M_MBA, /* MacBook Air */
+ M_MBA_3, /* Macbook Air, 3rd rev */
M_MBP, /* MacBook Pro */
M_MBP_2, /* MacBook Pro 2nd gen */
M_MBP_2_2, /* MacBook Pro 2,2nd gen */
M_MBP_6_1, /* MacBook Pro, 6,1th gen */
M_MBP_6_2, /* MacBook Pro, 6,2th gen */
M_MBP_7_1, /* MacBook Pro, 7,1th gen */
+ M_MBP_8_2, /* MacBook Pro, 8,2nd gen */
M_UNKNOWN /* placeholder */
};
+#define OVERRIDE_NONE 0x0
+#define OVERRIDE_BASE 0x1
+#define OVERRIDE_STRIDE 0x2
+#define OVERRIDE_HEIGHT 0x4
+#define OVERRIDE_WIDTH 0x8
+
static struct efifb_dmi_info {
char *optname;
unsigned long base;
int stride;
int width;
int height;
+ int flags;
} dmi_list[] __initdata = {
- [M_I17] = { "i17", 0x80010000, 1472 * 4, 1440, 900 },
- [M_I20] = { "i20", 0x80010000, 1728 * 4, 1680, 1050 }, /* guess */
- [M_I20_SR] = { "imac7", 0x40010000, 1728 * 4, 1680, 1050 },
- [M_I24] = { "i24", 0x80010000, 2048 * 4, 1920, 1200 }, /* guess */
- [M_I24_8_1] = { "imac8", 0xc0060000, 2048 * 4, 1920, 1200 },
- [M_I24_10_1] = { "imac10", 0xc0010000, 2048 * 4, 1920, 1080 },
- [M_I27_11_1] = { "imac11", 0xc0010000, 2560 * 4, 2560, 1440 },
- [M_MINI]= { "mini", 0x80000000, 2048 * 4, 1024, 768 },
- [M_MINI_3_1] = { "mini31", 0x40010000, 1024 * 4, 1024, 768 },
- [M_MINI_4_1] = { "mini41", 0xc0010000, 2048 * 4, 1920, 1200 },
- [M_MB] = { "macbook", 0x80000000, 2048 * 4, 1280, 800 },
- [M_MB_5_1] = { "macbook51", 0x80010000, 2048 * 4, 1280, 800 },
- [M_MB_6_1] = { "macbook61", 0x80010000, 2048 * 4, 1280, 800 },
- [M_MB_7_1] = { "macbook71", 0x80010000, 2048 * 4, 1280, 800 },
- [M_MBA] = { "mba", 0x80000000, 2048 * 4, 1280, 800 },
- [M_MBP] = { "mbp", 0x80010000, 1472 * 4, 1440, 900 },
- [M_MBP_2] = { "mbp2", 0, 0, 0, 0 }, /* placeholder */
- [M_MBP_2_2] = { "mbp22", 0x80010000, 1472 * 4, 1440, 900 },
- [M_MBP_SR] = { "mbp3", 0x80030000, 2048 * 4, 1440, 900 },
- [M_MBP_4] = { "mbp4", 0xc0060000, 2048 * 4, 1920, 1200 },
- [M_MBP_5_1] = { "mbp51", 0xc0010000, 2048 * 4, 1440, 900 },
- [M_MBP_5_2] = { "mbp52", 0xc0010000, 2048 * 4, 1920, 1200 },
- [M_MBP_5_3] = { "mbp53", 0xd0010000, 2048 * 4, 1440, 900 },
- [M_MBP_6_1] = { "mbp61", 0x90030000, 2048 * 4, 1920, 1200 },
- [M_MBP_6_2] = { "mbp62", 0x90030000, 2048 * 4, 1680, 1050 },
- [M_MBP_7_1] = { "mbp71", 0xc0010000, 2048 * 4, 1280, 800 },
- [M_UNKNOWN] = { NULL, 0, 0, 0, 0 }
+ [M_I17] = { "i17", 0x80010000, 1472 * 4, 1440, 900, OVERRIDE_NONE },
+ [M_I20] = { "i20", 0x80010000, 1728 * 4, 1680, 1050, OVERRIDE_NONE }, /* guess */
+ [M_I20_SR] = { "imac7", 0x40010000, 1728 * 4, 1680, 1050, OVERRIDE_NONE },
+ [M_I24] = { "i24", 0x80010000, 2048 * 4, 1920, 1200, OVERRIDE_NONE }, /* guess */
+ [M_I24_8_1] = { "imac8", 0xc0060000, 2048 * 4, 1920, 1200, OVERRIDE_NONE },
+ [M_I24_10_1] = { "imac10", 0xc0010000, 2048 * 4, 1920, 1080, OVERRIDE_NONE },
+ [M_I27_11_1] = { "imac11", 0xc0010000, 2560 * 4, 2560, 1440, OVERRIDE_NONE },
+ [M_MINI]= { "mini", 0x80000000, 2048 * 4, 1024, 768, OVERRIDE_NONE },
+ [M_MINI_3_1] = { "mini31", 0x40010000, 1024 * 4, 1024, 768, OVERRIDE_NONE },
+ [M_MINI_4_1] = { "mini41", 0xc0010000, 2048 * 4, 1920, 1200, OVERRIDE_NONE },
+ [M_MB] = { "macbook", 0x80000000, 2048 * 4, 1280, 800, OVERRIDE_NONE },
+ [M_MB_5_1] = { "macbook51", 0x80010000, 2048 * 4, 1280, 800, OVERRIDE_NONE },
+ [M_MB_6_1] = { "macbook61", 0x80010000, 2048 * 4, 1280, 800, OVERRIDE_NONE },
+ [M_MB_7_1] = { "macbook71", 0x80010000, 2048 * 4, 1280, 800, OVERRIDE_NONE },
+ [M_MBA] = { "mba", 0x80000000, 2048 * 4, 1280, 800, OVERRIDE_NONE },
+ /* 11" Macbook Air 3,1 passes the wrong stride */
+ [M_MBA_3] = { "mba3", 0, 2048 * 4, 0, 0, OVERRIDE_STRIDE },
+ [M_MBP] = { "mbp", 0x80010000, 1472 * 4, 1440, 900, OVERRIDE_NONE },
+ [M_MBP_2] = { "mbp2", 0, 0, 0, 0, OVERRIDE_NONE }, /* placeholder */
+ [M_MBP_2_2] = { "mbp22", 0x80010000, 1472 * 4, 1440, 900, OVERRIDE_NONE },
+ [M_MBP_SR] = { "mbp3", 0x80030000, 2048 * 4, 1440, 900, OVERRIDE_NONE },
+ [M_MBP_4] = { "mbp4", 0xc0060000, 2048 * 4, 1920, 1200, OVERRIDE_NONE },
+ [M_MBP_5_1] = { "mbp51", 0xc0010000, 2048 * 4, 1440, 900, OVERRIDE_NONE },
+ [M_MBP_5_2] = { "mbp52", 0xc0010000, 2048 * 4, 1920, 1200, OVERRIDE_NONE },
+ [M_MBP_5_3] = { "mbp53", 0xd0010000, 2048 * 4, 1440, 900, OVERRIDE_NONE },
+ [M_MBP_6_1] = { "mbp61", 0x90030000, 2048 * 4, 1920, 1200, OVERRIDE_NONE },
+ [M_MBP_6_2] = { "mbp62", 0x90030000, 2048 * 4, 1680, 1050, OVERRIDE_NONE },
+ [M_MBP_7_1] = { "mbp71", 0xc0010000, 2048 * 4, 1280, 800, OVERRIDE_NONE },
+ [M_MBP_8_2] = { "mbp82", 0x90010000, 1472 * 4, 1440, 900, OVERRIDE_NONE },
+ [M_UNKNOWN] = { NULL, 0, 0, 0, 0, OVERRIDE_NONE }
};
static int set_system(const struct dmi_system_id *id);
EFIFB_DMI_SYSTEM_ID("Apple Inc.", "MacBook6,1", M_MB_6_1),
EFIFB_DMI_SYSTEM_ID("Apple Inc.", "MacBook7,1", M_MB_7_1),
EFIFB_DMI_SYSTEM_ID("Apple Inc.", "MacBookAir1,1", M_MBA),
+ EFIFB_DMI_SYSTEM_ID("Apple Inc.", "MacBookAir3,1", M_MBA_3),
EFIFB_DMI_SYSTEM_ID("Apple Computer, Inc.", "MacBookPro1,1", M_MBP),
EFIFB_DMI_SYSTEM_ID("Apple Computer, Inc.", "MacBookPro2,1", M_MBP_2),
EFIFB_DMI_SYSTEM_ID("Apple Computer, Inc.", "MacBookPro2,2", M_MBP_2_2),
EFIFB_DMI_SYSTEM_ID("Apple Inc.", "MacBookPro6,1", M_MBP_6_1),
EFIFB_DMI_SYSTEM_ID("Apple Inc.", "MacBookPro6,2", M_MBP_6_2),
EFIFB_DMI_SYSTEM_ID("Apple Inc.", "MacBookPro7,1", M_MBP_7_1),
+ EFIFB_DMI_SYSTEM_ID("Apple Inc.", "MacBookPro8,2", M_MBP_8_2),
{},
};
+#define choose_value(dmivalue, fwvalue, field, flags) ({ \
+ typeof(fwvalue) _ret_ = fwvalue; \
+ if ((flags) & (field)) \
+ _ret_ = dmivalue; \
+ else if ((fwvalue) == 0) \
+ _ret_ = dmivalue; \
+ _ret_; \
+ })
+
static int set_system(const struct dmi_system_id *id)
{
struct efifb_dmi_info *info = id->driver_data;
- if (info->base == 0)
- return 0;
- printk(KERN_INFO "efifb: dmi detected %s - framebuffer at %p "
- "(%dx%d, stride %d)\n", id->ident,
- (void *)info->base, info->width, info->height,
- info->stride);
+ if (info->base == 0 && info->height == 0 && info->width == 0
+ && info->stride == 0)
+ return 0;
/* Trust the bootloader over the DMI tables */
if (screen_info.lfb_base == 0) {
struct pci_dev *dev = NULL;
int found_bar = 0;
#endif
- screen_info.lfb_base = info->base;
+ if (info->base) {
+ screen_info.lfb_base = choose_value(info->base,
+ screen_info.lfb_base, OVERRIDE_BASE,
+ info->flags);
#if defined(CONFIG_PCI)
- /* make sure that the address in the table is actually on a
- * VGA device's PCI BAR */
-
- for_each_pci_dev(dev) {
- int i;
- if ((dev->class >> 8) != PCI_CLASS_DISPLAY_VGA)
- continue;
- for (i = 0; i < DEVICE_COUNT_RESOURCE; i++) {
- resource_size_t start, end;
-
- start = pci_resource_start(dev, i);
- if (start == 0)
- break;
- end = pci_resource_end(dev, i);
- if (screen_info.lfb_base >= start &&
- screen_info.lfb_base < end) {
- found_bar = 1;
+ /* make sure that the address in the table is actually
+ * on a VGA device's PCI BAR */
+
+ for_each_pci_dev(dev) {
+ int i;
+ if ((dev->class >> 8) != PCI_CLASS_DISPLAY_VGA)
+ continue;
+ for (i = 0; i < DEVICE_COUNT_RESOURCE; i++) {
+ resource_size_t start, end;
+
+ start = pci_resource_start(dev, i);
+ if (start == 0)
+ break;
+ end = pci_resource_end(dev, i);
+ if (screen_info.lfb_base >= start &&
+ screen_info.lfb_base < end) {
+ found_bar = 1;
+ }
}
}
- }
- if (!found_bar)
- screen_info.lfb_base = 0;
+ if (!found_bar)
+ screen_info.lfb_base = 0;
#endif
+ }
}
if (screen_info.lfb_base) {
- if (screen_info.lfb_linelength == 0)
- screen_info.lfb_linelength = info->stride;
- if (screen_info.lfb_width == 0)
- screen_info.lfb_width = info->width;
- if (screen_info.lfb_height == 0)
- screen_info.lfb_height = info->height;
+ screen_info.lfb_linelength = choose_value(info->stride,
+ screen_info.lfb_linelength, OVERRIDE_STRIDE,
+ info->flags);
+ screen_info.lfb_width = choose_value(info->width,
+ screen_info.lfb_width, OVERRIDE_WIDTH,
+ info->flags);
+ screen_info.lfb_height = choose_value(info->height,
+ screen_info.lfb_height, OVERRIDE_HEIGHT,
+ info->flags);
if (screen_info.orig_video_isVGA == 0)
screen_info.orig_video_isVGA = VIDEO_TYPE_EFI;
} else {
screen_info.orig_video_isVGA = 0;
return 0;
}
+
+ printk(KERN_INFO "efifb: dmi detected %s - framebuffer at 0x%08x "
+ "(%dx%d, stride %d)\n", id->ident,
+ screen_info.lfb_base, screen_info.lfb_width,
+ screen_info.lfb_height, screen_info.lfb_linelength);
+
+
return 1;
}
{
if (info->screen_base)
iounmap(info->screen_base);
- release_mem_region(info->apertures->ranges[0].base, info->apertures->ranges[0].size);
+ if (request_mem_succeeded)
+ release_mem_region(info->apertures->ranges[0].base,
+ info->apertures->ranges[0].size);
framebuffer_release(info);
}
return 0;
}
-static int __devinit efifb_probe(struct platform_device *dev)
+static int __init efifb_probe(struct platform_device *dev)
{
struct fb_info *info;
int err;
unsigned int size_vmode;
unsigned int size_remap;
unsigned int size_total;
- int request_succeeded = 0;
if (!screen_info.lfb_depth)
screen_info.lfb_depth = 32;
efifb_fix.smem_len = size_remap;
if (request_mem_region(efifb_fix.smem_start, size_remap, "efifb")) {
- request_succeeded = 1;
+ request_mem_succeeded = true;
} else {
/* We cannot make this fatal. Sometimes this comes from magic
spaces our resource handlers simply don't know about */
info->apertures->ranges[0].base = efifb_fix.smem_start;
info->apertures->ranges[0].size = size_remap;
- info->screen_base = ioremap(efifb_fix.smem_start, efifb_fix.smem_len);
+ info->screen_base = ioremap_wc(efifb_fix.smem_start, efifb_fix.smem_len);
if (!info->screen_base) {
printk(KERN_ERR "efifb: abort, cannot ioremap video memory "
"0x%x @ 0x%lx\n",
err_release_fb:
framebuffer_release(info);
err_release_mem:
- if (request_succeeded)
+ if (request_mem_succeeded)
release_mem_region(efifb_fix.smem_start, size_total);
return err;
}
static struct platform_driver efifb_driver = {
- .probe = efifb_probe,
.driver = {
.name = "efifb",
},
if (!screen_info.lfb_linelength)
return -ENODEV;
- ret = platform_driver_register(&efifb_driver);
+ ret = platform_device_register(&efifb_device);
+ if (ret)
+ return ret;
- if (!ret) {
- ret = platform_device_register(&efifb_device);
- if (ret)
- platform_driver_unregister(&efifb_driver);
+ /*
+ * This is not just an optimization. We will interfere
+ * with a real driver if we get reprobed, so don't allow
+ * it.
+ */
+ ret = platform_driver_probe(&efifb_driver, efifb_probe);
+ if (ret) {
+ platform_device_unregister(&efifb_device);
+ return ret;
}
+
return ret;
}
module_init(efifb_init);