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/sound/isa/gus/gus_dram.c b/sound/isa/gus/gus_dram.c
new file mode 100644
index 0000000..22120b8
--- /dev/null
+++ b/sound/isa/gus/gus_dram.c
@@ -0,0 +1,103 @@
+/*
+ * Copyright (c) by Jaroslav Kysela <perex@suse.cz>
+ * DRAM access routines
+ *
+ *
+ * This program is free software; you can redistribute it and/or modify
+ * it under the terms of the GNU General Public License as published by
+ * the Free Software Foundation; either version 2 of the License, or
+ * (at your option) any later version.
+ *
+ * This program is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
+ * GNU General Public License for more details.
+ *
+ * You should have received a copy of the GNU General Public License
+ * along with this program; if not, write to the Free Software
+ * Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA
+ *
+ */
+
+#include <sound/driver.h>
+#include <linux/time.h>
+#include <sound/core.h>
+#include <sound/gus.h>
+#include <sound/info.h>
+
+
+static int snd_gus_dram_poke(snd_gus_card_t *gus, char __user *_buffer,
+ unsigned int address, unsigned int size)
+{
+ unsigned long flags;
+ unsigned int size1, size2;
+ char buffer[256], *pbuffer;
+
+ while (size > 0) {
+ size1 = size > sizeof(buffer) ? sizeof(buffer) : size;
+ if (copy_from_user(buffer, _buffer, size1))
+ return -EFAULT;
+ if (gus->interwave) {
+ spin_lock_irqsave(&gus->reg_lock, flags);
+ snd_gf1_write8(gus, SNDRV_GF1_GB_MEMORY_CONTROL, 0x01);
+ snd_gf1_dram_addr(gus, address);
+ outsb(GUSP(gus, DRAM), buffer, size1);
+ spin_unlock_irqrestore(&gus->reg_lock, flags);
+ address += size1;
+ } else {
+ pbuffer = buffer;
+ size2 = size1;
+ while (size2--)
+ snd_gf1_poke(gus, address++, *pbuffer++);
+ }
+ size -= size1;
+ _buffer += size1;
+ }
+ return 0;
+}
+
+
+int snd_gus_dram_write(snd_gus_card_t *gus, char __user *buffer,
+ unsigned int address, unsigned int size)
+{
+ return snd_gus_dram_poke(gus, buffer, address, size);
+}
+
+static int snd_gus_dram_peek(snd_gus_card_t *gus, char __user *_buffer,
+ unsigned int address, unsigned int size,
+ int rom)
+{
+ unsigned long flags;
+ unsigned int size1, size2;
+ char buffer[256], *pbuffer;
+
+ while (size > 0) {
+ size1 = size > sizeof(buffer) ? sizeof(buffer) : size;
+ if (gus->interwave) {
+ spin_lock_irqsave(&gus->reg_lock, flags);
+ snd_gf1_write8(gus, SNDRV_GF1_GB_MEMORY_CONTROL, rom ? 0x03 : 0x01);
+ snd_gf1_dram_addr(gus, address);
+ insb(GUSP(gus, DRAM), buffer, size1);
+ snd_gf1_write8(gus, SNDRV_GF1_GB_MEMORY_CONTROL, 0x01);
+ spin_unlock_irqrestore(&gus->reg_lock, flags);
+ address += size1;
+ } else {
+ pbuffer = buffer;
+ size2 = size1;
+ while (size2--)
+ *pbuffer++ = snd_gf1_peek(gus, address++);
+ }
+ if (copy_to_user(_buffer, buffer, size1))
+ return -EFAULT;
+ size -= size1;
+ _buffer += size1;
+ }
+ return 0;
+}
+
+int snd_gus_dram_read(snd_gus_card_t *gus, char __user *buffer,
+ unsigned int address, unsigned int size,
+ int rom)
+{
+ return snd_gus_dram_peek(gus, buffer, address, size, rom);
+}
