1 #include <linux/vmalloc.h>
2 #include <linux/module.h>
5 #include <linux/slab.h>
6 #include <asm/uaccess.h>
7 #include "oss/sound_firmware.h"
9 static int do_mod_firmware_load(const char *fn
, char **fp
)
16 filp
= filp_open(fn
, 0, 0);
19 printk(KERN_INFO
"Unable to load '%s'.\n", fn
);
22 l
= filp
->f_dentry
->d_inode
->i_size
;
23 if (l
<= 0 || l
> 131072)
25 printk(KERN_INFO
"Invalid firmware '%s'\n", fn
);
26 filp_close(filp
, current
->files
);
32 printk(KERN_INFO
"Out of memory loading '%s'.\n", fn
);
33 filp_close(filp
, current
->files
);
37 if (vfs_read(filp
, dp
, l
, &pos
) != l
)
39 printk(KERN_INFO
"Failed to read '%s'.\n", fn
);
41 filp_close(filp
, current
->files
);
44 filp_close(filp
, current
->files
);
50 * mod_firmware_load - load sound driver firmware
52 * @fp: return for the buffer.
54 * Load the firmware for a sound module (up to 128K) into a buffer.
55 * The buffer is returned in *fp. It is allocated with vmalloc so is
56 * virtually linear and not DMAable. The caller should free it with
57 * vfree when finished.
59 * The length of the buffer is returned on a successful load, the
60 * value zero on a failure.
62 * Caution: This API is not recommended. Firmware should be loaded via
66 int mod_firmware_load(const char *fn
, char **fp
)
69 mm_segment_t fs
= get_fs();
72 r
= do_mod_firmware_load(fn
, fp
);
76 EXPORT_SYMBOL(mod_firmware_load
);
78 MODULE_LICENSE("GPL");