Linux-2.6.12-rc2v2.6.12-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 000000000000..886763f12132
--- /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;
+}