/* * Copyright (c) by Jaroslav Kysela * 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 #include #include #include struct gus_proc_private { int rom; /* data are in ROM */ unsigned int address; unsigned int size; struct snd_gus_card * gus; }; static ssize_t snd_gf1_mem_proc_dump(struct snd_info_entry *entry, void *file_private_data, struct file *file, char __user *buf, size_t count, loff_t pos) { struct gus_proc_private *priv = entry->private_data; struct snd_gus_card *gus = priv->gus; int err; err = snd_gus_dram_read(gus, buf, pos, count, priv->rom); if (err < 0) return err; return count; } static void snd_gf1_mem_proc_free(struct snd_info_entry *entry) { struct gus_proc_private *priv = entry->private_data; kfree(priv); } static struct snd_info_entry_ops snd_gf1_mem_proc_ops = { .read = snd_gf1_mem_proc_dump, }; int snd_gf1_mem_proc_init(struct snd_gus_card * gus) { int idx; char name[16]; struct gus_proc_private *priv; struct snd_info_entry *entry; for (idx = 0; idx < 4; idx++) { if (gus->gf1.mem_alloc.banks_8[idx].size > 0) { priv = kzalloc(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 = kzalloc(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; } a2967b3576c9483d'>net/hsr/Kconfig

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