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_mem_proc.c b/sound/isa/gus/gus_mem_proc.c
new file mode 100644
index 0000000..886763f
--- /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;
+}