diff options
Diffstat (limited to 'sound')
| -rw-r--r-- | sound/Makefile | 1 | ||||
| -rw-r--r-- | sound/oss/sound_firmware.h | 29 | ||||
| -rw-r--r-- | sound/sound_firmware.c | 77 |
3 files changed, 28 insertions, 79 deletions
diff --git a/sound/Makefile b/sound/Makefile index 77320709fd26..c41bdf5fdf24 100644 --- a/sound/Makefile +++ b/sound/Makefile @@ -2,7 +2,6 @@ # obj-$(CONFIG_SOUND) += soundcore.o -obj-$(CONFIG_SOUND_PRIME) += sound_firmware.o obj-$(CONFIG_SOUND_PRIME) += oss/ obj-$(CONFIG_DMASOUND) += oss/ obj-$(CONFIG_SND) += core/ i2c/ drivers/ isa/ pci/ ppc/ arm/ sh/ synth/ usb/ \ diff --git a/sound/oss/sound_firmware.h b/sound/oss/sound_firmware.h index 0a0cbfdfb855..da4c67e005ed 100644 --- a/sound/oss/sound_firmware.h +++ b/sound/oss/sound_firmware.h @@ -1,2 +1,29 @@ -extern int mod_firmware_load(const char *fn, char **fp); +#include <linux/fs.h> +/** + * mod_firmware_load - load sound driver firmware + * @fn: filename + * @fp: return for the buffer. + * + * Load the firmware for a sound module (up to 128K) into a buffer. + * The buffer is returned in *fp. It is allocated with vmalloc so is + * virtually linear and not DMAable. The caller should free it with + * vfree when finished. + * + * The length of the buffer is returned on a successful load, the + * value zero on a failure. + * + * Caution: This API is not recommended. Firmware should be loaded via + * request_firmware. + */ +static inline int mod_firmware_load(const char *fn, char **fp) +{ + loff_t size; + int err; + + err = kernel_read_file_from_path((char *)fn, (void **)fp, &size, + 131072, READING_FIRMWARE); + if (err < 0) + return 0; + return size; +} diff --git a/sound/sound_firmware.c b/sound/sound_firmware.c deleted file mode 100644 index 026347643c81..000000000000 --- a/sound/sound_firmware.c +++ /dev/null @@ -1,77 +0,0 @@ -#include <linux/vmalloc.h> -#include <linux/module.h> -#include <linux/fs.h> -#include <linux/file.h> -#include <linux/mm.h> -#include <linux/sched.h> -#include <asm/uaccess.h> -#include "oss/sound_firmware.h" - -static int do_mod_firmware_load(const char *fn, char **fp) -{ - struct file* filp; - long l; - char *dp; - - filp = filp_open(fn, 0, 0); - if (IS_ERR(filp)) - { - printk(KERN_INFO "Unable to load '%s'.\n", fn); - return 0; - } - l = i_size_read(file_inode(filp)); - if (l <= 0 || l > 131072) - { - printk(KERN_INFO "Invalid firmware '%s'\n", fn); - fput(filp); - return 0; - } - dp = vmalloc(l); - if (dp == NULL) - { - printk(KERN_INFO "Out of memory loading '%s'.\n", fn); - fput(filp); - return 0; - } - if (kernel_read(filp, 0, dp, l) != l) - { - printk(KERN_INFO "Failed to read '%s'.\n", fn); - vfree(dp); - fput(filp); - return 0; - } - fput(filp); - *fp = dp; - return (int) l; -} - -/** - * mod_firmware_load - load sound driver firmware - * @fn: filename - * @fp: return for the buffer. - * - * Load the firmware for a sound module (up to 128K) into a buffer. - * The buffer is returned in *fp. It is allocated with vmalloc so is - * virtually linear and not DMAable. The caller should free it with - * vfree when finished. - * - * The length of the buffer is returned on a successful load, the - * value zero on a failure. - * - * Caution: This API is not recommended. Firmware should be loaded via - * request_firmware. - */ - -int mod_firmware_load(const char *fn, char **fp) -{ - int r; - mm_segment_t fs = get_fs(); - - set_fs(get_ds()); - r = do_mod_firmware_load(fn, fp); - set_fs(fs); - return r; -} -EXPORT_SYMBOL(mod_firmware_load); - -MODULE_LICENSE("GPL"); |