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-rw-r--r--drivers/video/Kconfig15
-rw-r--r--drivers/video/Makefile1
-rw-r--r--drivers/video/efifb.c191
-rw-r--r--drivers/video/imacfb.c376
4 files changed, 184 insertions, 399 deletions
diff --git a/drivers/video/Kconfig b/drivers/video/Kconfig
index e63e5648e0a6..3b296e410f91 100644
--- a/drivers/video/Kconfig
+++ b/drivers/video/Kconfig
@@ -689,23 +689,14 @@ config FB_VESA
689 689
690config FB_EFI 690config FB_EFI
691 bool "EFI-based Framebuffer Support" 691 bool "EFI-based Framebuffer Support"
692 depends on (FB = y) && X86
693 select FB_CFB_FILLRECT
694 select FB_CFB_COPYAREA
695 select FB_CFB_IMAGEBLIT
696 help
697 This is the EFI frame buffer device driver. If the firmware on
698 your platform is UEFI2.0, select Y to add support for
699 Graphics Output Protocol for early console messages to appear.
700
701config FB_IMAC
702 bool "Intel-based Macintosh Framebuffer Support"
703 depends on (FB = y) && X86 && EFI 692 depends on (FB = y) && X86 && EFI
704 select FB_CFB_FILLRECT 693 select FB_CFB_FILLRECT
705 select FB_CFB_COPYAREA 694 select FB_CFB_COPYAREA
706 select FB_CFB_IMAGEBLIT 695 select FB_CFB_IMAGEBLIT
707 help 696 help
708 This is the frame buffer device driver for the Intel-based Macintosh 697 This is the EFI frame buffer device driver. If the firmware on
698 your platform is EFI 1.10 or UEFI 2.0, select Y to add support for
699 using the EFI framebuffer as your console.
709 700
710config FB_N411 701config FB_N411
711 tristate "N411 Apollo/Hecuba devkit support" 702 tristate "N411 Apollo/Hecuba devkit support"
diff --git a/drivers/video/Makefile b/drivers/video/Makefile
index dcae8d402fb2..2bc94d8eb3c8 100644
--- a/drivers/video/Makefile
+++ b/drivers/video/Makefile
@@ -125,7 +125,6 @@ obj-$(CONFIG_FB_CARMINE) += carminefb.o
125# Platform or fallback drivers go here 125# Platform or fallback drivers go here
126obj-$(CONFIG_FB_UVESA) += uvesafb.o 126obj-$(CONFIG_FB_UVESA) += uvesafb.o
127obj-$(CONFIG_FB_VESA) += vesafb.o 127obj-$(CONFIG_FB_VESA) += vesafb.o
128obj-$(CONFIG_FB_IMAC) += imacfb.o
129obj-$(CONFIG_FB_EFI) += efifb.o 128obj-$(CONFIG_FB_EFI) += efifb.o
130obj-$(CONFIG_FB_VGA16) += vga16fb.o 129obj-$(CONFIG_FB_VGA16) += vga16fb.o
131obj-$(CONFIG_FB_OF) += offb.o 130obj-$(CONFIG_FB_OF) += offb.o
diff --git a/drivers/video/efifb.c b/drivers/video/efifb.c
index bd779ae44b1e..daf9b81878a4 100644
--- a/drivers/video/efifb.c
+++ b/drivers/video/efifb.c
@@ -12,6 +12,7 @@
12#include <linux/fb.h> 12#include <linux/fb.h>
13#include <linux/platform_device.h> 13#include <linux/platform_device.h>
14#include <linux/screen_info.h> 14#include <linux/screen_info.h>
15#include <linux/dmi.h>
15 16
16#include <video/vga.h> 17#include <video/vga.h>
17 18
@@ -33,6 +34,105 @@ static struct fb_fix_screeninfo efifb_fix __initdata = {
33 .visual = FB_VISUAL_TRUECOLOR, 34 .visual = FB_VISUAL_TRUECOLOR,
34}; 35};
35 36
37enum {
38 M_I17, /* 17-Inch iMac */
39 M_I20, /* 20-Inch iMac */
40 M_I20_SR, /* 20-Inch iMac (Santa Rosa) */
41 M_I24, /* 24-Inch iMac */
42 M_MINI, /* Mac Mini */
43 M_MB, /* MacBook */
44 M_MB_2, /* MacBook, 2nd rev. */
45 M_MB_3, /* MacBook, 3rd rev. */
46 M_MB_SR, /* MacBook, 2nd gen, (Santa Rosa) */
47 M_MBA, /* MacBook Air */
48 M_MBP, /* MacBook Pro */
49 M_MBP_2, /* MacBook Pro 2nd gen */
50 M_MBP_SR, /* MacBook Pro (Santa Rosa) */
51 M_MBP_4, /* MacBook Pro, 4th gen */
52 M_UNKNOWN /* placeholder */
53};
54
55static struct efifb_dmi_info {
56 char *optname;
57 unsigned long base;
58 int stride;
59 int width;
60 int height;
61} dmi_list[] = {
62 [M_I17] = { "i17", 0x80010000, 1472 * 4, 1440, 900 },
63 [M_I20] = { "i20", 0x80010000, 1728 * 4, 1680, 1050 }, /* guess */
64 [M_I20_SR] = { "imac7", 0x40010000, 1728 * 4, 1680, 1050 },
65 [M_I24] = { "i24", 0x80010000, 2048 * 4, 1920, 1200 }, /* guess */
66 [M_MINI]= { "mini", 0x80000000, 2048 * 4, 1024, 768 },
67 [M_MB] = { "macbook", 0x80000000, 2048 * 4, 1280, 800 },
68 [M_MBA] = { "mba", 0x80000000, 2048 * 4, 1280, 800 },
69 [M_MBP] = { "mbp", 0x80010000, 1472 * 4, 1440, 900 },
70 [M_MBP_2] = { "mbp2", 0, 0, 0, 0 }, /* placeholder */
71 [M_MBP_SR] = { "mbp3", 0x80030000, 2048 * 4, 1440, 900 },
72 [M_MBP_4] = { "mbp4", 0xc0060000, 2048 * 4, 1920, 1200 },
73 [M_UNKNOWN] = { NULL, 0, 0, 0, 0 }
74};
75
76static int set_system(const struct dmi_system_id *id);
77
78#define EFIFB_DMI_SYSTEM_ID(vendor, name, enumid) \
79 { set_system, name, { \
80 DMI_MATCH(DMI_BIOS_VENDOR, vendor), \
81 DMI_MATCH(DMI_PRODUCT_NAME, name) }, \
82 &dmi_list[enumid] }
83
84static struct dmi_system_id __initdata dmi_system_table[] = {
85 EFIFB_DMI_SYSTEM_ID("Apple Computer, Inc.", "iMac4,1", M_I17),
86 /* At least one of these two will be right; maybe both? */
87 EFIFB_DMI_SYSTEM_ID("Apple Computer, Inc.", "iMac5,1", M_I20),
88 EFIFB_DMI_SYSTEM_ID("Apple Inc.", "iMac5,1", M_I20),
89 /* At least one of these two will be right; maybe both? */
90 EFIFB_DMI_SYSTEM_ID("Apple Computer, Inc.", "iMac6,1", M_I24),
91 EFIFB_DMI_SYSTEM_ID("Apple Inc.", "iMac6,1", M_I24),
92 EFIFB_DMI_SYSTEM_ID("Apple Inc.", "iMac7,1", M_I20_SR),
93 EFIFB_DMI_SYSTEM_ID("Apple Computer, Inc.", "Macmini1,1", M_MINI),
94 EFIFB_DMI_SYSTEM_ID("Apple Computer, Inc.", "MacBook1,1", M_MB),
95 /* At least one of these two will be right; maybe both? */
96 EFIFB_DMI_SYSTEM_ID("Apple Computer, Inc.", "MacBook2,1", M_MB),
97 EFIFB_DMI_SYSTEM_ID("Apple Inc.", "MacBook2,1", M_MB),
98 /* At least one of these two will be right; maybe both? */
99 EFIFB_DMI_SYSTEM_ID("Apple Computer, Inc.", "MacBook3,1", M_MB),
100 EFIFB_DMI_SYSTEM_ID("Apple Inc.", "MacBook3,1", M_MB),
101 EFIFB_DMI_SYSTEM_ID("Apple Inc.", "MacBook4,1", M_MB),
102 EFIFB_DMI_SYSTEM_ID("Apple Inc.", "MacBookAir1,1", M_MBA),
103 EFIFB_DMI_SYSTEM_ID("Apple Computer, Inc.", "MacBookPro1,1", M_MBP),
104 EFIFB_DMI_SYSTEM_ID("Apple Computer, Inc.", "MacBookPro2,1", M_MBP_2),
105 EFIFB_DMI_SYSTEM_ID("Apple Inc.", "MacBookPro2,1", M_MBP_2),
106 EFIFB_DMI_SYSTEM_ID("Apple Computer, Inc.", "MacBookPro3,1", M_MBP_SR),
107 EFIFB_DMI_SYSTEM_ID("Apple Inc.", "MacBookPro3,1", M_MBP_SR),
108 EFIFB_DMI_SYSTEM_ID("Apple Inc.", "MacBookPro4,1", M_MBP_4),
109 {},
110};
111
112static int set_system(const struct dmi_system_id *id)
113{
114 struct efifb_dmi_info *info = id->driver_data;
115 if (info->base == 0)
116 return -ENODEV;
117
118 printk(KERN_INFO "efifb: dmi detected %s - framebuffer at %p "
119 "(%dx%d, stride %d)\n", id->ident,
120 (void *)info->base, info->width, info->height,
121 info->stride);
122
123 /* Trust the bootloader over the DMI tables */
124 if (screen_info.lfb_base == 0)
125 screen_info.lfb_base = info->base;
126 if (screen_info.lfb_linelength == 0)
127 screen_info.lfb_linelength = info->stride;
128 if (screen_info.lfb_width == 0)
129 screen_info.lfb_width = info->width;
130 if (screen_info.lfb_height == 0)
131 screen_info.lfb_height = info->height;
132
133 return 0;
134}
135
36static int efifb_setcolreg(unsigned regno, unsigned red, unsigned green, 136static int efifb_setcolreg(unsigned regno, unsigned red, unsigned green,
37 unsigned blue, unsigned transp, 137 unsigned blue, unsigned transp,
38 struct fb_info *info) 138 struct fb_info *info)
@@ -67,6 +167,38 @@ static struct fb_ops efifb_ops = {
67 .fb_imageblit = cfb_imageblit, 167 .fb_imageblit = cfb_imageblit,
68}; 168};
69 169
170static int __init efifb_setup(char *options)
171{
172 char *this_opt;
173 int i;
174
175 if (!options || !*options)
176 return 0;
177
178 while ((this_opt = strsep(&options, ",")) != NULL) {
179 if (!*this_opt) continue;
180
181 for (i = 0; i < M_UNKNOWN; i++) {
182 if (!strcmp(this_opt, dmi_list[i].optname) &&
183 dmi_list[i].base != 0) {
184 screen_info.lfb_base = dmi_list[i].base;
185 screen_info.lfb_linelength = dmi_list[i].stride;
186 screen_info.lfb_width = dmi_list[i].width;
187 screen_info.lfb_height = dmi_list[i].height;
188 }
189 }
190 if (!strncmp(this_opt, "base:", 5))
191 screen_info.lfb_base = simple_strtoul(this_opt+5, NULL, 0);
192 else if (!strncmp(this_opt, "stride:", 7))
193 screen_info.lfb_linelength = simple_strtoul(this_opt+7, NULL, 0) * 4;
194 else if (!strncmp(this_opt, "height:", 7))
195 screen_info.lfb_height = simple_strtoul(this_opt+7, NULL, 0);
196 else if (!strncmp(this_opt, "width:", 6))
197 screen_info.lfb_width = simple_strtoul(this_opt+6, NULL, 0);
198 }
199 return 0;
200}
201
70static int __init efifb_probe(struct platform_device *dev) 202static int __init efifb_probe(struct platform_device *dev)
71{ 203{
72 struct fb_info *info; 204 struct fb_info *info;
@@ -74,6 +206,26 @@ static int __init efifb_probe(struct platform_device *dev)
74 unsigned int size_vmode; 206 unsigned int size_vmode;
75 unsigned int size_remap; 207 unsigned int size_remap;
76 unsigned int size_total; 208 unsigned int size_total;
209 int request_succeeded = 0;
210
211 printk(KERN_INFO "efifb: probing for efifb\n");
212
213 if (!screen_info.lfb_depth)
214 screen_info.lfb_depth = 32;
215 if (!screen_info.pages)
216 screen_info.pages = 1;
217
218 /* just assume they're all unset if any are */
219 if (!screen_info.blue_size) {
220 screen_info.blue_size = 8;
221 screen_info.blue_pos = 0;
222 screen_info.green_size = 8;
223 screen_info.green_pos = 8;
224 screen_info.red_size = 8;
225 screen_info.red_pos = 16;
226 screen_info.rsvd_size = 8;
227 screen_info.rsvd_pos = 24;
228 }
77 229
78 efifb_fix.smem_start = screen_info.lfb_base; 230 efifb_fix.smem_start = screen_info.lfb_base;
79 efifb_defined.bits_per_pixel = screen_info.lfb_depth; 231 efifb_defined.bits_per_pixel = screen_info.lfb_depth;
@@ -98,21 +250,25 @@ static int __init efifb_probe(struct platform_device *dev)
98 * option to simply use size_total as that 250 * option to simply use size_total as that
99 * wastes plenty of kernel address space. */ 251 * wastes plenty of kernel address space. */
100 size_remap = size_vmode * 2; 252 size_remap = size_vmode * 2;
101 if (size_remap < size_vmode)
102 size_remap = size_vmode;
103 if (size_remap > size_total) 253 if (size_remap > size_total)
104 size_remap = size_total; 254 size_remap = size_total;
255 if (size_remap % PAGE_SIZE)
256 size_remap += PAGE_SIZE - (size_remap % PAGE_SIZE);
105 efifb_fix.smem_len = size_remap; 257 efifb_fix.smem_len = size_remap;
106 258
107 if (!request_mem_region(efifb_fix.smem_start, size_total, "efifb")) 259 if (request_mem_region(efifb_fix.smem_start, size_remap, "efifb")) {
260 request_succeeded = 1;
261 } else {
108 /* We cannot make this fatal. Sometimes this comes from magic 262 /* We cannot make this fatal. Sometimes this comes from magic
109 spaces our resource handlers simply don't know about */ 263 spaces our resource handlers simply don't know about */
110 printk(KERN_WARNING 264 printk(KERN_WARNING
111 "efifb: cannot reserve video memory at 0x%lx\n", 265 "efifb: cannot reserve video memory at 0x%lx\n",
112 efifb_fix.smem_start); 266 efifb_fix.smem_start);
267 }
113 268
114 info = framebuffer_alloc(sizeof(u32) * 16, &dev->dev); 269 info = framebuffer_alloc(sizeof(u32) * 16, &dev->dev);
115 if (!info) { 270 if (!info) {
271 printk(KERN_ERR "efifb: cannot allocate framebuffer\n");
116 err = -ENOMEM; 272 err = -ENOMEM;
117 goto err_release_mem; 273 goto err_release_mem;
118 } 274 }
@@ -125,7 +281,7 @@ static int __init efifb_probe(struct platform_device *dev)
125 "0x%x @ 0x%lx\n", 281 "0x%x @ 0x%lx\n",
126 efifb_fix.smem_len, efifb_fix.smem_start); 282 efifb_fix.smem_len, efifb_fix.smem_start);
127 err = -EIO; 283 err = -EIO;
128 goto err_unmap; 284 goto err_release_fb;
129 } 285 }
130 286
131 printk(KERN_INFO "efifb: framebuffer at 0x%lx, mapped to 0x%p, " 287 printk(KERN_INFO "efifb: framebuffer at 0x%lx, mapped to 0x%p, "
@@ -178,25 +334,27 @@ static int __init efifb_probe(struct platform_device *dev)
178 info->fix = efifb_fix; 334 info->fix = efifb_fix;
179 info->flags = FBINFO_FLAG_DEFAULT; 335 info->flags = FBINFO_FLAG_DEFAULT;
180 336
181 if (fb_alloc_cmap(&info->cmap, 256, 0) < 0) { 337 if ((err = fb_alloc_cmap(&info->cmap, 256, 0)) < 0) {
182 err = -ENOMEM; 338 printk(KERN_ERR "efifb: cannot allocate colormap\n");
183 goto err_unmap; 339 goto err_unmap;
184 } 340 }
185 if (register_framebuffer(info) < 0) { 341 if ((err = register_framebuffer(info)) < 0) {
186 err = -EINVAL; 342 printk(KERN_ERR "efifb: cannot register framebuffer\n");
187 goto err_fb_dealoc; 343 goto err_fb_dealoc;
188 } 344 }
189 printk(KERN_INFO "fb%d: %s frame buffer device\n", 345 printk(KERN_INFO "fb%d: %s frame buffer device\n",
190 info->node, info->fix.id); 346 info->node, info->fix.id);
191 return 0; 347 return 0;
192 348
193err_fb_dealoc: 349err_fb_dealoc:
194 fb_dealloc_cmap(&info->cmap); 350 fb_dealloc_cmap(&info->cmap);
195err_unmap: 351err_unmap:
196 iounmap(info->screen_base); 352 iounmap(info->screen_base);
353err_release_fb:
197 framebuffer_release(info); 354 framebuffer_release(info);
198err_release_mem: 355err_release_mem:
199 release_mem_region(efifb_fix.smem_start, size_total); 356 if (request_succeeded)
357 release_mem_region(efifb_fix.smem_start, size_total);
200 return err; 358 return err;
201} 359}
202 360
@@ -214,9 +372,22 @@ static struct platform_device efifb_device = {
214static int __init efifb_init(void) 372static int __init efifb_init(void)
215{ 373{
216 int ret; 374 int ret;
375 char *option = NULL;
217 376
218 if (screen_info.orig_video_isVGA != VIDEO_TYPE_EFI) 377 if (screen_info.orig_video_isVGA != VIDEO_TYPE_EFI)
219 return -ENODEV; 378 return -ENODEV;
379 dmi_check_system(dmi_system_table);
380
381 if (fb_get_options("efifb", &option))
382 return -ENODEV;
383 efifb_setup(option);
384
385 /* We don't get linelength from UGA Draw Protocol, only from
386 * EFI Graphics Protocol. So if it's not in DMI, and it's not
387 * passed in from the user, we really can't use the framebuffer.
388 */
389 if (!screen_info.lfb_linelength)
390 return -ENODEV;
220 391
221 ret = platform_driver_register(&efifb_driver); 392 ret = platform_driver_register(&efifb_driver);
222 393
diff --git a/drivers/video/imacfb.c b/drivers/video/imacfb.c
index 9366ef2bb5f7..e69de29bb2d1 100644
--- a/drivers/video/imacfb.c
+++ b/drivers/video/imacfb.c
@@ -1,376 +0,0 @@
1/*
2 * framebuffer driver for Intel Based Mac's
3 *
4 * (c) 2006 Edgar Hucek <gimli@dark-green.com>
5 * Original imac driver written by Gerd Knorr <kraxel@goldbach.in-berlin.de>
6 *
7 */
8
9#include <linux/delay.h>
10#include <linux/errno.h>
11#include <linux/fb.h>
12#include <linux/kernel.h>
13#include <linux/init.h>
14#include <linux/ioport.h>
15#include <linux/mm.h>
16#include <linux/module.h>
17#include <linux/platform_device.h>
18#include <linux/screen_info.h>
19#include <linux/slab.h>
20#include <linux/string.h>
21#include <linux/dmi.h>
22#include <linux/efi.h>
23
24#include <asm/io.h>
25
26#include <video/vga.h>
27
28typedef enum _MAC_TYPE {
29 M_I17,
30 M_I20,
31 M_MINI,
32 M_MACBOOK,
33 M_UNKNOWN
34} MAC_TYPE;
35
36/* --------------------------------------------------------------------- */
37
38static struct fb_var_screeninfo imacfb_defined __initdata = {
39 .activate = FB_ACTIVATE_NOW,
40 .height = -1,
41 .width = -1,
42 .right_margin = 32,
43 .upper_margin = 16,
44 .lower_margin = 4,
45 .vsync_len = 4,
46 .vmode = FB_VMODE_NONINTERLACED,
47};
48
49static struct fb_fix_screeninfo imacfb_fix __initdata = {
50 .id = "IMAC VGA",
51 .type = FB_TYPE_PACKED_PIXELS,
52 .accel = FB_ACCEL_NONE,
53 .visual = FB_VISUAL_TRUECOLOR,
54};
55
56static int inverse;
57static int model = M_UNKNOWN;
58static int manual_height;
59static int manual_width;
60
61static int set_system(const struct dmi_system_id *id)
62{
63 printk(KERN_INFO "imacfb: %s detected - set system to %ld\n",
64 id->ident, (long)id->driver_data);
65
66 model = (long)id->driver_data;
67
68 return 0;
69}
70
71static struct dmi_system_id __initdata dmi_system_table[] = {
72 { set_system, "iMac4,1", {
73 DMI_MATCH(DMI_BIOS_VENDOR,"Apple Computer, Inc."),
74 DMI_MATCH(DMI_PRODUCT_NAME,"iMac4,1") }, (void*)M_I17},
75 { set_system, "MacBookPro1,1", {
76 DMI_MATCH(DMI_BIOS_VENDOR,"Apple Computer, Inc."),
77 DMI_MATCH(DMI_PRODUCT_NAME,"MacBookPro1,1") }, (void*)M_I17},
78 { set_system, "MacBook1,1", {
79 DMI_MATCH(DMI_BIOS_VENDOR,"Apple Computer, Inc."),
80 DMI_MATCH(DMI_PRODUCT_NAME,"MacBook1,1")}, (void *)M_MACBOOK},
81 { set_system, "Macmini1,1", {
82 DMI_MATCH(DMI_BIOS_VENDOR,"Apple Computer, Inc."),
83 DMI_MATCH(DMI_PRODUCT_NAME,"Macmini1,1")}, (void *)M_MINI},
84 {},
85};
86
87#define DEFAULT_FB_MEM 1024*1024*16
88
89/* --------------------------------------------------------------------- */
90
91static int imacfb_setcolreg(unsigned regno, unsigned red, unsigned green,
92 unsigned blue, unsigned transp,
93 struct fb_info *info)
94{
95 /*
96 * Set a single color register. The values supplied are
97 * already rounded down to the hardware's capabilities
98 * (according to the entries in the `var' structure). Return
99 * != 0 for invalid regno.
100 */
101
102 if (regno >= info->cmap.len)
103 return 1;
104
105 if (regno < 16) {
106 red >>= 8;
107 green >>= 8;
108 blue >>= 8;
109 ((u32 *)(info->pseudo_palette))[regno] =
110 (red << info->var.red.offset) |
111 (green << info->var.green.offset) |
112 (blue << info->var.blue.offset);
113 }
114 return 0;
115}
116
117static struct fb_ops imacfb_ops = {
118 .owner = THIS_MODULE,
119 .fb_setcolreg = imacfb_setcolreg,
120 .fb_fillrect = cfb_fillrect,
121 .fb_copyarea = cfb_copyarea,
122 .fb_imageblit = cfb_imageblit,
123};
124
125static int __init imacfb_setup(char *options)
126{
127 char *this_opt;
128
129 if (!options || !*options)
130 return 0;
131
132 while ((this_opt = strsep(&options, ",")) != NULL) {
133 if (!*this_opt) continue;
134
135 if (!strcmp(this_opt, "inverse"))
136 inverse = 1;
137 else if (!strcmp(this_opt, "i17"))
138 model = M_I17;
139 else if (!strcmp(this_opt, "i20"))
140 model = M_I20;
141 else if (!strcmp(this_opt, "mini"))
142 model = M_MINI;
143 else if (!strcmp(this_opt, "macbook"))
144 model = M_MACBOOK;
145 else if (!strncmp(this_opt, "height:", 7))
146 manual_height = simple_strtoul(this_opt+7, NULL, 0);
147 else if (!strncmp(this_opt, "width:", 6))
148 manual_width = simple_strtoul(this_opt+6, NULL, 0);
149 }
150 return 0;
151}
152
153static int __init imacfb_probe(struct platform_device *dev)
154{
155 struct fb_info *info;
156 int err;
157 unsigned int size_vmode;
158 unsigned int size_remap;
159 unsigned int size_total;
160
161 screen_info.lfb_depth = 32;
162 screen_info.lfb_size = DEFAULT_FB_MEM / 0x10000;
163 screen_info.pages=1;
164 screen_info.blue_size = 8;
165 screen_info.blue_pos = 0;
166 screen_info.green_size = 8;
167 screen_info.green_pos = 8;
168 screen_info.red_size = 8;
169 screen_info.red_pos = 16;
170 screen_info.rsvd_size = 8;
171 screen_info.rsvd_pos = 24;
172
173 switch (model) {
174 case M_I17:
175 screen_info.lfb_width = 1440;
176 screen_info.lfb_height = 900;
177 screen_info.lfb_linelength = 1472 * 4;
178 screen_info.lfb_base = 0x80010000;
179 break;
180 case M_I20:
181 screen_info.lfb_width = 1680;
182 screen_info.lfb_height = 1050;
183 screen_info.lfb_linelength = 1728 * 4;
184 screen_info.lfb_base = 0x80010000;
185 break;
186 case M_MINI:
187 screen_info.lfb_width = 1024;
188 screen_info.lfb_height = 768;
189 screen_info.lfb_linelength = 2048 * 4;
190 screen_info.lfb_base = 0x80000000;
191 break;
192 case M_MACBOOK:
193 screen_info.lfb_width = 1280;
194 screen_info.lfb_height = 800;
195 screen_info.lfb_linelength = 2048 * 4;
196 screen_info.lfb_base = 0x80000000;
197 break;
198 }
199
200 /* if the user wants to manually specify height/width,
201 we will override the defaults */
202 /* TODO: eventually get auto-detection working */
203 if (manual_height > 0)
204 screen_info.lfb_height = manual_height;
205 if (manual_width > 0)
206 screen_info.lfb_width = manual_width;
207
208 imacfb_fix.smem_start = screen_info.lfb_base;
209 imacfb_defined.bits_per_pixel = screen_info.lfb_depth;
210 imacfb_defined.xres = screen_info.lfb_width;
211 imacfb_defined.yres = screen_info.lfb_height;
212 imacfb_fix.line_length = screen_info.lfb_linelength;
213
214 /* size_vmode -- that is the amount of memory needed for the
215 * used video mode, i.e. the minimum amount of
216 * memory we need. */
217 size_vmode = imacfb_defined.yres * imacfb_fix.line_length;
218
219 /* size_total -- all video memory we have. Used for
220 * entries, ressource allocation and bounds
221 * checking. */
222 size_total = screen_info.lfb_size * 65536;
223 if (size_total < size_vmode)
224 size_total = size_vmode;
225
226 /* size_remap -- the amount of video memory we are going to
227 * use for imacfb. With modern cards it is no
228 * option to simply use size_total as that
229 * wastes plenty of kernel address space. */
230 size_remap = size_vmode * 2;
231 if (size_remap < size_vmode)
232 size_remap = size_vmode;
233 if (size_remap > size_total)
234 size_remap = size_total;
235 imacfb_fix.smem_len = size_remap;
236
237 if (!request_mem_region(imacfb_fix.smem_start, size_total, "imacfb")) {
238 printk(KERN_WARNING
239 "imacfb: cannot reserve video memory at 0x%lx\n",
240 imacfb_fix.smem_start);
241 /* We cannot make this fatal. Sometimes this comes from magic
242 spaces our resource handlers simply don't know about */
243 }
244
245 info = framebuffer_alloc(sizeof(u32) * 16, &dev->dev);
246 if (!info) {
247 err = -ENOMEM;
248 goto err_release_mem;
249 }
250 info->pseudo_palette = info->par;
251 info->par = NULL;
252
253 info->screen_base = ioremap(imacfb_fix.smem_start, imacfb_fix.smem_len);
254 if (!info->screen_base) {
255 printk(KERN_ERR "imacfb: abort, cannot ioremap video memory "
256 "0x%x @ 0x%lx\n",
257 imacfb_fix.smem_len, imacfb_fix.smem_start);
258 err = -EIO;
259 goto err_unmap;
260 }
261
262 printk(KERN_INFO "imacfb: framebuffer at 0x%lx, mapped to 0x%p, "
263 "using %dk, total %dk\n",
264 imacfb_fix.smem_start, info->screen_base,
265 size_remap/1024, size_total/1024);
266 printk(KERN_INFO "imacfb: mode is %dx%dx%d, linelength=%d, pages=%d\n",
267 imacfb_defined.xres, imacfb_defined.yres,
268 imacfb_defined.bits_per_pixel, imacfb_fix.line_length,
269 screen_info.pages);
270
271 imacfb_defined.xres_virtual = imacfb_defined.xres;
272 imacfb_defined.yres_virtual = imacfb_fix.smem_len /
273 imacfb_fix.line_length;
274 printk(KERN_INFO "imacfb: scrolling: redraw\n");
275 imacfb_defined.yres_virtual = imacfb_defined.yres;
276
277 /* some dummy values for timing to make fbset happy */
278 imacfb_defined.pixclock = 10000000 / imacfb_defined.xres *
279 1000 / imacfb_defined.yres;
280 imacfb_defined.left_margin = (imacfb_defined.xres / 8) & 0xf8;
281 imacfb_defined.hsync_len = (imacfb_defined.xres / 8) & 0xf8;
282
283 imacfb_defined.red.offset = screen_info.red_pos;
284 imacfb_defined.red.length = screen_info.red_size;
285 imacfb_defined.green.offset = screen_info.green_pos;
286 imacfb_defined.green.length = screen_info.green_size;
287 imacfb_defined.blue.offset = screen_info.blue_pos;
288 imacfb_defined.blue.length = screen_info.blue_size;
289 imacfb_defined.transp.offset = screen_info.rsvd_pos;
290 imacfb_defined.transp.length = screen_info.rsvd_size;
291
292 printk(KERN_INFO "imacfb: %s: "
293 "size=%d:%d:%d:%d, shift=%d:%d:%d:%d\n",
294 "Truecolor",
295 screen_info.rsvd_size,
296 screen_info.red_size,
297 screen_info.green_size,
298 screen_info.blue_size,
299 screen_info.rsvd_pos,
300 screen_info.red_pos,
301 screen_info.green_pos,
302 screen_info.blue_pos);
303
304 imacfb_fix.ypanstep = 0;
305 imacfb_fix.ywrapstep = 0;
306
307 /* request failure does not faze us, as vgacon probably has this
308 * region already (FIXME) */
309 request_region(0x3c0, 32, "imacfb");
310
311 info->fbops = &imacfb_ops;
312 info->var = imacfb_defined;
313 info->fix = imacfb_fix;
314 info->flags = FBINFO_FLAG_DEFAULT;
315
316 if (fb_alloc_cmap(&info->cmap, 256, 0) < 0) {
317 err = -ENOMEM;
318 goto err_unmap;
319 }
320 if (register_framebuffer(info)<0) {
321 err = -EINVAL;
322 goto err_fb_dealoc;
323 }
324 printk(KERN_INFO "fb%d: %s frame buffer device\n",
325 info->node, info->fix.id);
326 return 0;
327
328err_fb_dealoc:
329 fb_dealloc_cmap(&info->cmap);
330err_unmap:
331 iounmap(info->screen_base);
332 framebuffer_release(info);
333err_release_mem:
334 release_mem_region(imacfb_fix.smem_start, size_total);
335 return err;
336}
337
338static struct platform_driver imacfb_driver = {
339 .probe = imacfb_probe,
340 .driver = {
341 .name = "imacfb",
342 },
343};
344
345static struct platform_device imacfb_device = {
346 .name = "imacfb",
347};
348
349static int __init imacfb_init(void)
350{
351 int ret;
352 char *option = NULL;
353
354 if (!efi_enabled)
355 return -ENODEV;
356 if (!dmi_check_system(dmi_system_table))
357 return -ENODEV;
358 if (model == M_UNKNOWN)
359 return -ENODEV;
360
361 if (fb_get_options("imacfb", &option))
362 return -ENODEV;
363
364 imacfb_setup(option);
365 ret = platform_driver_register(&imacfb_driver);
366
367 if (!ret) {
368 ret = platform_device_register(&imacfb_device);
369 if (ret)
370 platform_driver_unregister(&imacfb_driver);
371 }
372 return ret;
373}
374module_init(imacfb_init);
375
376MODULE_LICENSE("GPL");
generated by cgit v1.2.2 (git 2.25.0) at 2026-01-09 05:08:03 -0500