#include <linux/spinlock.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/init.h>
#include <linux/ioport.h>
+#include <linux/platform_device.h>
#include <asm/io.h>
#include <asm/vga.h>
/* Framebuffer driver structures */
-static struct fb_var_screeninfo hga_default_var = {
+static struct fb_var_screeninfo __initdata hga_default_var = {
.xres = 720,
.yres = 348,
.xres_virtual = 720,
.width = -1,
};
-static struct fb_fix_screeninfo hga_fix = {
+static struct fb_fix_screeninfo __initdata hga_fix = {
.id = "HGA",
.type = FB_TYPE_PACKED_PIXELS, /* (not sure) */
.visual = FB_VISUAL_MONO10,
.accel = FB_ACCEL_NONE
};
-static struct fb_info fb_info;
-
/* Don't assume that tty1 will be the initial current console. */
static int release_io_port = 0;
static int release_io_ports = 0;
static int __init hga_card_detect(void)
{
- int count=0;
+ int count = 0;
void __iomem *p, *q;
unsigned short p_save, q_save;
writew(0x55aa, p); if (readw(p) == 0x55aa) count++;
writew(p_save, p);
- if (count != 2) {
- return 0;
- }
+ if (count != 2)
+ goto error;
/* Ok, there is definitely a card registering at the correct
* memory location, so now we do an I/O port test.
*/
- if (!test_hga_b(0x66, 0x0f)) { /* cursor low register */
- return 0;
- }
- if (!test_hga_b(0x99, 0x0f)) { /* cursor low register */
- return 0;
- }
+ if (!test_hga_b(0x66, 0x0f)) /* cursor low register */
+ goto error;
+
+ if (!test_hga_b(0x99, 0x0f)) /* cursor low register */
+ goto error;
/* See if the card is a Hercules, by checking whether the vsync
* bit of the status register is changing. This test lasts for
}
if (p_save == q_save)
- return 0;
+ goto error;
switch (inb_p(HGA_STATUS_PORT) & 0x70) {
case 0x10:
break;
}
return 1;
+error:
+ if (release_io_ports)
+ release_region(0x3b0, 12);
+ if (release_io_port)
+ release_region(0x3bf, 1);
+ return 0;
}
/**
* Initialization
*/
-static int __init hgafb_init(void)
+static int __init hgafb_probe(struct platform_device *pdev)
{
- if (fb_get_options("hgafb", NULL))
- return -ENODEV;
+ struct fb_info *info;
if (! hga_card_detect()) {
printk(KERN_INFO "hgafb: HGA card not detected.\n");
printk(KERN_INFO "hgafb: %s with %ldK of memory detected.\n",
hga_type_name, hga_vram_len/1024);
+ info = framebuffer_alloc(0, &pdev->dev);
+ if (!info) {
+ iounmap(hga_vram);
+ return -ENOMEM;
+ }
+
hga_fix.smem_start = (unsigned long)hga_vram;
hga_fix.smem_len = hga_vram_len;
- fb_info.flags = FBINFO_DEFAULT | FBINFO_HWACCEL_YPAN;
- fb_info.var = hga_default_var;
- fb_info.fix = hga_fix;
- fb_info.monspecs.hfmin = 0;
- fb_info.monspecs.hfmax = 0;
- fb_info.monspecs.vfmin = 10000;
- fb_info.monspecs.vfmax = 10000;
- fb_info.monspecs.dpms = 0;
- fb_info.fbops = &hgafb_ops;
- fb_info.screen_base = hga_vram;
-
- if (register_framebuffer(&fb_info) < 0) {
+ info->flags = FBINFO_DEFAULT | FBINFO_HWACCEL_YPAN;
+ info->var = hga_default_var;
+ info->fix = hga_fix;
+ info->monspecs.hfmin = 0;
+ info->monspecs.hfmax = 0;
+ info->monspecs.vfmin = 10000;
+ info->monspecs.vfmax = 10000;
+ info->monspecs.dpms = 0;
+ info->fbops = &hgafb_ops;
+ info->screen_base = hga_vram;
+
+ if (register_framebuffer(info) < 0) {
+ framebuffer_release(info);
iounmap(hga_vram);
return -EINVAL;
}
printk(KERN_INFO "fb%d: %s frame buffer device\n",
- fb_info.node, fb_info.fix.id);
+ info->node, info->fix.id);
+ platform_set_drvdata(pdev, info);
return 0;
}
-#ifdef MODULE
-static void __exit hgafb_exit(void)
+static int hgafb_remove(struct platform_device *pdev)
{
+ struct fb_info *info = platform_get_drvdata(pdev);
+
hga_txt_mode();
hga_clear_screen();
- unregister_framebuffer(&fb_info);
+
+ if (info) {
+ unregister_framebuffer(info);
+ framebuffer_release(info);
+ }
+
iounmap(hga_vram);
- if (release_io_ports) release_region(0x3b0, 12);
- if (release_io_port) release_region(0x3bf, 1);
+
+ if (release_io_ports)
+ release_region(0x3b0, 12);
+
+ if (release_io_port)
+ release_region(0x3bf, 1);
+
+ return 0;
+}
+
+static struct platform_driver hgafb_driver = {
+ .probe = hgafb_probe,
+ .remove = hgafb_remove,
+ .driver = {
+ .name = "hgafb",
+ },
+};
+
+static struct platform_device *hgafb_device;
+
+static int __init hgafb_init(void)
+{
+ int ret;
+
+ if (fb_get_options("hgafb", NULL))
+ return -ENODEV;
+
+ ret = platform_driver_register(&hgafb_driver);
+
+ if (!ret) {
+ hgafb_device = platform_device_register_simple("hgafb", 0, NULL, 0);
+
+ if (IS_ERR(hgafb_device)) {
+ platform_driver_unregister(&hgafb_driver);
+ ret = PTR_ERR(hgafb_device);
+ }
+ }
+
+ return ret;
+}
+
+static void __exit hgafb_exit(void)
+{
+ platform_device_unregister(hgafb_device);
+ platform_driver_unregister(&hgafb_driver);
}
-#endif
/* -------------------------------------------------------------------------
*
module_param(nologo, bool, 0);
MODULE_PARM_DESC(nologo, "Disables startup logo if != 0 (default=0)");
module_init(hgafb_init);
-
-#ifdef MODULE
module_exit(hgafb_exit);
-#endif
git://ftp.safe.ca / safe / jmp / linux-2.6 / blobdiff