Linux-2.6.12-rc2
Initial git repository build. I'm not bothering with the full history,
even though we have it. We can create a separate "historical" git
archive of that later if we want to, and in the meantime it's about
3.2GB when imported into git - space that would just make the early
git days unnecessarily complicated, when we don't have a lot of good
infrastructure for it.
Let it rip!
diff --git a/drivers/video/pmagb-b-fb.c b/drivers/video/pmagb-b-fb.c
new file mode 100644
index 0000000..d14eaee
--- /dev/null
+++ b/drivers/video/pmagb-b-fb.c
@@ -0,0 +1,182 @@
+/*
+ * linux/drivers/video/pmagb-b-fb.c
+ *
+ * PMAGB-B TurboChannel framebuffer card support ... derived from:
+ * "HP300 Topcat framebuffer support (derived from macfb of all things)
+ * Phil Blundell <philb@gnu.org> 1998", the original code can be
+ * found in the file hpfb.c in the same directory.
+ *
+ * DECstation related code Copyright (C) 1999, 2000, 2001 by
+ * Michael Engel <engel@unix-ag.org>,
+ * Karsten Merker <merker@linuxtag.org> and
+ * Harald Koerfgen.
+ * 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.
+ *
+ */
+
+/*
+ * We currently only support the PMAGB-B in high resolution mode
+ * as I know of no way to detect low resolution mode set via jumper.
+ * KM, 2001/01/07
+ */
+
+#include <linux/module.h>
+#include <linux/kernel.h>
+#include <linux/sched.h>
+#include <linux/errno.h>
+#include <linux/string.h>
+#include <linux/timer.h>
+#include <linux/mm.h>
+#include <linux/tty.h>
+#include <linux/slab.h>
+#include <linux/delay.h>
+#include <linux/init.h>
+#include <linux/fb.h>
+#include <asm/bootinfo.h>
+#include <asm/dec/machtype.h>
+#include <asm/dec/tc.h>
+#include <video/pmagb-b-fb.h>
+
+struct pmagb_b_ramdac_regs {
+ unsigned char addr_low;
+ unsigned char pad0[3];
+ unsigned char addr_hi;
+ unsigned char pad1[3];
+ unsigned char data;
+ unsigned char pad2[3];
+ unsigned char cmap;
+};
+
+/*
+ * Max 3 TURBOchannel slots -> max 3 PMAGB-B :)
+ */
+static struct fb_info pmagbb_fb_info[3];
+
+static struct fb_var_screeninfo pmagbbfb_defined = {
+ .xres = 1280,
+ .yres = 1024,
+ .xres_virtual = 1280,
+ .yres_virtual = 1024,
+ .bits_per_pixel = 8,
+ .red.length = 8,
+ .green.length = 8,
+ .blue.length = 8,
+ .activate = FB_ACTIVATE_NOW,
+ .height = 274,
+ .width = 195,
+ .accel_flags = FB_ACCEL_NONE,
+ .vmode = FB_VMODE_NONINTERLACED,
+};
+
+static struct fb_fix_screeninfo pmagbafb_fix = {
+ .id = "PMAGB-BA",
+ .smem_len = (1280 * 1024),
+ .type = FB_TYPE_PACKED_PIXELS,
+ .visual = FB_VISUAL_PSEUDOCOLOR,
+ .line_length = 1280,
+}
+
+/*
+ * Turn hardware cursor off
+ */
+void pmagbbfb_erase_cursor(struct pmagb_b_ramdac_regs *bt459_regs)
+{
+ bt459_regs->addr_low = 0;
+ bt459_regs->addr_hi = 3;
+ bt459_regs->data = 0;
+}
+
+/*
+ * Set the palette.
+ */
+static int pmagbbfb_setcolreg(unsigned regno, unsigned red, unsigned green,
+ unsigned blue, unsigned transp,
+ struct fb_info *info)
+{
+ struct pmagb_b_ramdac_regs *bt459_regs = (struct pmagb_b_ramdac_regs *) info->par;
+
+ if (regno >= info->cmap.len)
+ return 1;
+
+ red >>= 8; /* The cmap fields are 16 bits */
+ green >>= 8; /* wide, but the harware colormap */
+ blue >>= 8; /* registers are only 8 bits wide */
+
+ bt459_regs->addr_low = (__u8) regno;
+ bt459_regs->addr_hi = 0;
+ bt459_regs->cmap = red;
+ bt459_regs->cmap = green;
+ bt459_regs->cmap = blue;
+ return 0;
+}
+
+static struct fb_ops pmagbbfb_ops = {
+ .owner = THIS_MODULE,
+ .fb_setcolreg = pmagbbfb_setcolreg,
+ .fb_fillrect = cfb_fillrect,
+ .fb_copyarea = cfb_copyarea,
+ .fb_imageblit = cfb_imageblit,
+ .fb_cursor = soft_cursor,
+};
+
+int __init pmagbbfb_init_one(int slot)
+{
+ unsigned long base_addr = get_tc_base_addr(slot);
+ struct fb_info *info = &pmagbb_fb_info[slot];
+
+ printk("PMAGB-BA framebuffer in slot %d\n", slot);
+ /*
+ * Framebuffer display memory base address and friends
+ */
+ pmagbbfb_fix.smem_start = base_addr + PMAGB_B_ONBOARD_FBMEM_OFFSET;
+ info->par = (base_addr + PMAGB_B_BT459_OFFSET);
+
+ /*
+ * Configure the Bt459 RAM DAC
+ */
+ pmagbbfb_erase_cursor((struct pmagb_b_ramdac_regs *) info->par);
+
+ /*
+ * Let there be consoles..
+ */
+ info->fbops = &pmagbbfb_ops;
+ info->var = pmagbbfb_defined;
+ info->fix = pmagbbfb_fix;
+ info->screen_base = pmagbbfb_fix.smem_start;
+ info->flags = FBINFO_DEFAULT;
+
+ fb_alloc_cmap(&fb_info.cmap, 256, 0);
+
+ if (register_framebuffer(info) < 0)
+ return 1;
+ return 0;
+}
+
+/*
+ * Initialise the framebuffer
+ */
+
+int __init pmagbbfb_init(void)
+{
+ int sid;
+ int found = 0;
+
+ if (fb_get_options("pmagbbfb", NULL))
+ return -ENODEV;
+
+ if (TURBOCHANNEL) {
+ while ((sid = search_tc_card("PMAGB-BA")) >= 0) {
+ found = 1;
+ claim_tc_card(sid);
+ pmagbbfb_init_one(sid);
+ }
+ return found ? 0 : -ENODEV;
+ } else {
+ return -ENODEV;
+ }
+}
+
+module_init(pmagbbfb_init);
+MODULE_LICENSE("GPL");