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!

1 files changed, 135 insertions, 0 deletions

diff --git a/sound/isa/gus/gus_mem_proc.c b/sound/isa/gus/gus_mem_proc.c
new file mode 100644
index 00000000000..886763f1213
--- /dev/null
+++ b/sound/isa/gus/gus_mem_proc.c
@@ -0,0 +1,135 @@
+/*
+ *  Copyright (c) by Jaroslav Kysela <perex@suse.cz>
+ *  GUS's memory access via proc filesystem
+ *
+ *
+ *   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/slab.h>
+#include <sound/core.h>
+#include <sound/gus.h>
+#include <sound/info.h>
+
+typedef struct gus_proc_private {
+	int rom;		/* data are in ROM */
+	unsigned int address;
+	unsigned int size;
+	snd_gus_card_t * gus;
+} gus_proc_private_t;
+
+static long snd_gf1_mem_proc_dump(snd_info_entry_t *entry, void *file_private_data,
+			          struct file *file, char __user *buf,
+			          unsigned long count, unsigned long pos)
+{
+	long size;
+	gus_proc_private_t *priv = entry->private_data;
+	snd_gus_card_t *gus = priv->gus;
+	int err;
+
+	size = count;
+	if (pos + size > priv->size)
+		size = (long)priv->size - pos;
+	if (size > 0) {
+		if ((err = snd_gus_dram_read(gus, buf, pos, size, priv->rom)) < 0)
+			return err;
+		return size;
+	}
+	return 0;
+}			
+
+static long long snd_gf1_mem_proc_llseek(snd_info_entry_t *entry,
+					void *private_file_data,
+					struct file *file,
+					long long offset,
+					int orig)
+{
+	gus_proc_private_t *priv = entry->private_data;
+
+	switch (orig) {
+	case 0:	/* SEEK_SET */
+		file->f_pos = offset;
+		break;
+	case 1:	/* SEEK_CUR */
+		file->f_pos += offset;
+		break;
+	case 2: /* SEEK_END, offset is negative */
+		file->f_pos = priv->size + offset;
+		break;
+	default:
+		return -EINVAL;
+	}
+	if (file->f_pos > priv->size)
+		file->f_pos = priv->size;
+	return file->f_pos;
+}
+
+static void snd_gf1_mem_proc_free(snd_info_entry_t *entry)
+{
+	gus_proc_private_t *priv = entry->private_data;
+	kfree(priv);
+}
+
+static struct snd_info_entry_ops snd_gf1_mem_proc_ops = {
+	.read = snd_gf1_mem_proc_dump,
+	.llseek = snd_gf1_mem_proc_llseek,
+};
+
+int snd_gf1_mem_proc_init(snd_gus_card_t * gus)
+{
+	int idx;
+	char name[16];
+	gus_proc_private_t *priv;
+	snd_info_entry_t *entry;
+
+	for (idx = 0; idx < 4; idx++) {
+		if (gus->gf1.mem_alloc.banks_8[idx].size > 0) {
+			priv = kcalloc(1, sizeof(*priv), GFP_KERNEL);
+			if (priv == NULL)
+				return -ENOMEM;
+			priv->gus = gus;
+			sprintf(name, "gus-ram-%i", idx);
+			if (! snd_card_proc_new(gus->card, name, &entry)) {
+				entry->content = SNDRV_INFO_CONTENT_DATA;
+				entry->private_data = priv;
+				entry->private_free = snd_gf1_mem_proc_free;
+				entry->c.ops = &snd_gf1_mem_proc_ops;
+				priv->address = gus->gf1.mem_alloc.banks_8[idx].address;
+				priv->size = entry->size = gus->gf1.mem_alloc.banks_8[idx].size;
+			}
+		}
+	}
+	for (idx = 0; idx < 4; idx++) {
+		if (gus->gf1.rom_present & (1 << idx)) {
+			priv = kcalloc(1, sizeof(*priv), GFP_KERNEL);
+			if (priv == NULL)
+				return -ENOMEM;
+			priv->rom = 1;
+			priv->gus = gus;
+			sprintf(name, "gus-rom-%i", idx);
+			if (! snd_card_proc_new(gus->card, name, &entry)) {
+				entry->content = SNDRV_INFO_CONTENT_DATA;
+				entry->private_data = priv;
+				entry->private_free = snd_gf1_mem_proc_free;
+				entry->c.ops = &snd_gf1_mem_proc_ops;
+				priv->address = idx * 4096 * 1024;
+				priv->size = entry->size = gus->gf1.rom_memory;
+			}
+		}
+	}
+	return 0;
+}