#include <linux/errno.h>
#include <linux/string.h>
#include <linux/mm.h>
-#include <linux/tty.h>
#include <linux/slab.h>
#include <linux/delay.h>
#include <linux/fb.h>
#include <linux/ioport.h>
#include <linux/init.h>
#include <linux/platform_device.h>
+#include <linux/screen_info.h>
#include <asm/io.h>
#include <video/vga.h>
unsigned char ClockingMode; /* Seq-Controller:01h */
} vga_state;
struct vgastate state;
- atomic_t ref_count;
+ struct mutex open_lock;
+ unsigned int ref_count;
int palette_blanked, vesa_blanked, mode, isVGA;
u8 misc, pel_msk, vss, clkdiv;
u8 crtc[VGA_CRT_C];
const struct fb_info *info,
int mul, int div)
{
- static struct {
+ static const struct {
u32 pixclock;
u8 misc;
u8 seq_clock_mode;
static int vga16fb_open(struct fb_info *info, int user)
{
struct vga16fb_par *par = info->par;
- int cnt = atomic_read(&par->ref_count);
- if (!cnt) {
+ mutex_lock(&par->open_lock);
+ if (!par->ref_count) {
memset(&par->state, 0, sizeof(struct vgastate));
par->state.flags = VGA_SAVE_FONTS | VGA_SAVE_MODE |
VGA_SAVE_CMAP;
save_vga(&par->state);
}
- atomic_inc(&par->ref_count);
+ par->ref_count++;
+ mutex_unlock(&par->open_lock);
+
return 0;
}
static int vga16fb_release(struct fb_info *info, int user)
{
struct vga16fb_par *par = info->par;
- int cnt = atomic_read(&par->ref_count);
- if (!cnt)
+ mutex_lock(&par->open_lock);
+ if (!par->ref_count) {
+ mutex_unlock(&par->open_lock);
return -EINVAL;
- if (cnt == 1)
+ }
+ if (par->ref_count == 1)
restore_vga(&par->state);
- atomic_dec(&par->ref_count);
+ par->ref_count--;
+ mutex_unlock(&par->open_lock);
return 0;
}
static void ega16_setpalette(int regno, unsigned red, unsigned green, unsigned blue)
{
- static unsigned char map[] = { 000, 001, 010, 011 };
+ static const unsigned char map[] = { 000, 001, 010, 011 };
int val;
if (regno >= 16)
}
}
-#ifdef __LITTLE_ENDIAN
-static unsigned int transl_l[] =
-{0x0,0x8,0x4,0xC,0x2,0xA,0x6,0xE,0x1,0x9,0x5,0xD,0x3,0xB,0x7,0xF};
-static unsigned int transl_h[] =
-{0x000, 0x800, 0x400, 0xC00, 0x200, 0xA00, 0x600, 0xE00,
- 0x100, 0x900, 0x500, 0xD00, 0x300, 0xB00, 0x700, 0xF00};
-#else
-#ifdef __BIG_ENDIAN
-static unsigned int transl_h[] =
-{0x0,0x8,0x4,0xC,0x2,0xA,0x6,0xE,0x1,0x9,0x5,0xD,0x3,0xB,0x7,0xF};
-static unsigned int transl_l[] =
-{0x000, 0x800, 0x400, 0xC00, 0x200, 0xA00, 0x600, 0xE00,
- 0x100, 0x900, 0x500, 0xD00, 0x300, 0xB00, 0x700, 0xF00};
+#define TRANS_MASK_LOW {0x0,0x8,0x4,0xC,0x2,0xA,0x6,0xE,0x1,0x9,0x5,0xD,0x3,0xB,0x7,0xF}
+#define TRANS_MASK_HIGH {0x000, 0x800, 0x400, 0xC00, 0x200, 0xA00, 0x600, 0xE00, \
+ 0x100, 0x900, 0x500, 0xD00, 0x300, 0xB00, 0x700, 0xF00}
+
+#if defined(__LITTLE_ENDIAN)
+static const u16 transl_l[] = TRANS_MASK_LOW;
+static const u16 transl_h[] = TRANS_MASK_HIGH;
+#elif defined(__BIG_ENDIAN)
+static const u16 transl_l[] = TRANS_MASK_HIGH;
+static const u16 transl_h[] = TRANS_MASK_LOW;
#else
#error "Only __BIG_ENDIAN and __LITTLE_ENDIAN are supported in vga-planes"
#endif
-#endif
static void vga_8planes_imageblit(struct fb_info *info, const struct fb_image *image)
{
}
#endif
-static int __init vga16fb_probe(struct device *device)
+static int __init vga16fb_probe(struct platform_device *dev)
{
- struct platform_device *dev = to_platform_device(device);
struct fb_info *info;
struct vga16fb_par *par;
int i;
}
/* XXX share VGA_FB_PHYS and I/O region with vgacon and others */
- info->screen_base = (void __iomem *)VGA_MAP_MEM(VGA_FB_PHYS);
+ info->screen_base = (void __iomem *)VGA_MAP_MEM(VGA_FB_PHYS, 0);
if (!info->screen_base) {
printk(KERN_ERR "vga16fb: unable to map device\n");
printk(KERN_INFO "vga16fb: mapped to 0x%p\n", info->screen_base);
par = info->par;
- par->isVGA = ORIG_VIDEO_ISVGA;
+ mutex_init(&par->open_lock);
+ par->isVGA = screen_info.orig_video_isVGA;
par->palette_blanked = 0;
par->vesa_blanked = 0;
info->fbops = &vga16fb_ops;
info->var = vga16fb_defined;
info->fix = vga16fb_fix;
+ /* supports rectangles with widths of multiples of 8 */
+ info->pixmap.blit_x = 1 << 7 | 1 << 15 | 1 << 23 | 1 << 31;
info->flags = FBINFO_FLAG_DEFAULT |
FBINFO_HWACCEL_YPAN;
printk(KERN_INFO "fb%d: %s frame buffer device\n",
info->node, info->fix.id);
- dev_set_drvdata(device, info);
+ platform_set_drvdata(dev, info);
return 0;
return ret;
}
-static int vga16fb_remove(struct device *device)
+static int vga16fb_remove(struct platform_device *dev)
{
- struct fb_info *info = dev_get_drvdata(device);
+ struct fb_info *info = platform_get_drvdata(dev);
if (info) {
unregister_framebuffer(info);
return 0;
}
-static struct device_driver vga16fb_driver = {
- .name = "vga16fb",
- .bus = &platform_bus_type,
+static struct platform_driver vga16fb_driver = {
.probe = vga16fb_probe,
.remove = vga16fb_remove,
+ .driver = {
+ .name = "vga16fb",
+ },
};
-static struct platform_device vga16fb_device = {
- .name = "vga16fb",
-};
+static struct platform_device *vga16fb_device;
static int __init vga16fb_init(void)
{
vga16fb_setup(option);
#endif
- ret = driver_register(&vga16fb_driver);
+ ret = platform_driver_register(&vga16fb_driver);
if (!ret) {
- ret = platform_device_register(&vga16fb_device);
- if (ret)
- driver_unregister(&vga16fb_driver);
+ vga16fb_device = platform_device_alloc("vga16fb", 0);
+
+ if (vga16fb_device)
+ ret = platform_device_add(vga16fb_device);
+ else
+ ret = -ENOMEM;
+
+ if (ret) {
+ platform_device_put(vga16fb_device);
+ platform_driver_unregister(&vga16fb_driver);
+ }
}
return ret;
static void __exit vga16fb_exit(void)
{
- platform_device_unregister(&vga16fb_device);
- driver_unregister(&vga16fb_driver);
+ platform_device_unregister(vga16fb_device);
+ platform_driver_unregister(&vga16fb_driver);
}
MODULE_LICENSE("GPL");
projects / linux-2.6-omap-h63xx.git / blobdiff