1 files changed, 160 insertions, 0 deletions

diff --git a/drivers/video/q40fb.c b/drivers/video/q40fb.c
new file mode 100644
index 000000000000..71b69da0c40d
--- /dev/null
+++ b/drivers/video/q40fb.c
@@ -0,0 +1,160 @@
+/*
+ * linux/drivers/video/q40fb.c -- Q40 frame buffer device
+ *
+ * Copyright (C) 2001
+ *
+ *      Richard Zidlicky <rz@linux-m68k.org>
+ *
+ *  This file is subject to the terms and conditions of the GNU General Public
+ *  License. See the file COPYING in the main directory of this archive for
+ *  more details.
+ */
+
+#include <linux/kernel.h>
+#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/interrupt.h>
+
+#include <asm/uaccess.h>
+#include <asm/setup.h>
+#include <asm/segment.h>
+#include <asm/system.h>
+#include <asm/q40_master.h>
+#include <linux/fb.h>
+#include <linux/module.h>
+#include <asm/pgtable.h>
+
+#define Q40_PHYS_SCREEN_ADDR 0xFE800000
+
+static struct fb_fix_screeninfo q40fb_fix __initdata = {
+        .id             = "Q40",
+        .smem_len       = 1024*1024,
+        .type           = FB_TYPE_PACKED_PIXELS,
+        .visual         = FB_VISUAL_TRUECOLOR,
+        .line_length    = 1024*2,
+        .accel          = FB_ACCEL_NONE,
+};
+
+static struct fb_var_screeninfo q40fb_var __initdata = {
+        .xres           = 1024,
+        .yres           = 512,
+        .xres_virtual   = 1024,
+        .yres_virtual   = 512,
+        .bits_per_pixel = 16,
+        .red            = {6, 5, 0},
+        .green          = {11, 5, 0},
+        .blue           = {0, 6, 0},
+        .activate       = FB_ACTIVATE_NOW,
+        .height         = 230,
+        .width          = 300,
+        .vmode          = FB_VMODE_NONINTERLACED,
+};
+
+static int q40fb_setcolreg(unsigned regno, unsigned red, unsigned green,
+                           unsigned blue, unsigned transp,
+                           struct fb_info *info)
+{
+    /*
+     *  Set a single color register. The values supplied have a 16 bit
+     *  magnitude.
+     *  Return != 0 for invalid regno.
+     */
+
+    if (regno > 255)
+            return 1;
+    red>>=11;
+    green>>=11;
+    blue>>=10;
+
+    if (regno < 16) {
+        ((u32 *)info->pseudo_palette)[regno] = ((red & 31) <<6) |
+                                               ((green & 31) << 11) |
+                                               (blue & 63);
+    }
+    return 0;
+}
+
+static struct fb_ops q40fb_ops = {
+        .owner          = THIS_MODULE,
+        .fb_setcolreg   = q40fb_setcolreg,
+        .fb_fillrect    = cfb_fillrect,
+        .fb_copyarea    = cfb_copyarea,
+        .fb_imageblit   = cfb_imageblit,
+        .fb_cursor      = soft_cursor,
+};
+
+static int __init q40fb_probe(struct device *device)
+{
+        struct platform_device *dev = to_platform_device(device);
+        struct fb_info *info;
+
+        if (!MACH_IS_Q40)
+                return -ENXIO;
+
+        /* mapped in q40/config.c */
+        q40fb_fix.smem_start = Q40_PHYS_SCREEN_ADDR;
+
+        info = framebuffer_alloc(sizeof(u32) * 256, &dev->dev);
+        if (!info)
+                return -ENOMEM;
+
+        info->var = q40fb_var;
+        info->fix = q40fb_fix;
+        info->fbops = &q40fb_ops;
+        info->flags = FBINFO_DEFAULT;  /* not as module for now */
+        info->pseudo_palette = info->par;
+        info->par = NULL;
+        info->screen_base = (char *) q40fb_fix.smem_start;
+
+        if (fb_alloc_cmap(&info->cmap, 256, 0) < 0) {
+                framebuffer_release(info);
+                return -ENOMEM;
+        }
+
+        master_outb(3, DISPLAY_CONTROL_REG);
+
+        if (register_framebuffer(info) < 0) {
+                printk(KERN_ERR "Unable to register Q40 frame buffer\n");
+                fb_dealloc_cmap(&info->cmap);
+                framebuffer_release(info);
+                return -EINVAL;
+        }
+
+        printk(KERN_INFO "fb%d: Q40 frame buffer alive and kicking !\n",
+               info->node);
+        return 0;
+}
+
+static struct device_driver q40fb_driver = {
+        .name   = "q40fb",
+        .bus    = &platform_bus_type,
+        .probe  = q40fb_probe,
+};
+
+static struct platform_device q40fb_device = {
+        .name   = "q40fb",
+};
+
+int __init q40fb_init(void)
+{
+        int ret = 0;
+
+        if (fb_get_options("q40fb", NULL))
+                return -ENODEV;
+
+        ret = driver_register(&q40fb_driver);
+
+        if (!ret) {
+                ret = platform_device_register(&q40fb_device);
+                if (ret)
+                        driver_unregister(&q40fb_driver);
+        }
+        return ret;
+}
+
+module_init(q40fb_init);
+MODULE_LICENSE("GPL");