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authorPeter Jones <pjones@redhat.com>2008-10-16 01:03:43 -0400
committerLinus Torvalds <torvalds@linux-foundation.org>2008-10-16 14:21:44 -0400
commit7c08c9ae0c145807c0dae4a55f240fa3d4fd5262 (patch)
tree63e2edd3731e0293b4190a82391e2d3f27e61983 /drivers/video
parentf928ac0a9810d46c8ba3bde7c969984340da9f5d (diff)
efifb/imacfb consolidation + hardware support
Remove imacfb entirely, merging its DMI table into the (otherwise very similar) efifb driver. This also adds hardware support for many of the newer Intel Apple hardware. This has been fairly well tested; we've been shipping it in Fedora for some time. Signed-off-by: Peter Jones <pjones@redhat.com> Cc: Krzysztof Helt <krzysztof.h1@poczta.fm> Cc: Geert Uytterhoeven <Geert.Uytterhoeven@sonycom.com> Cc: Jaya Kumar <jayakumar.lkml@gmail.com> Cc: Ralf Baechle <ralf@linux-mips.org> Cc: Maciej W. Rozycki <macro@linux-mips.org> Signed-off-by: Andrew Morton <akpm@linux-foundation.org> Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
Diffstat (limited to 'drivers/video')
-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 2024-11-12 07:44:23 -0500