ALSA: Echoaudio - Add firmware cache #2
This patch implements a simple cache for the firmware files when CONFIG_PM is defined.
This patch changes get_firmware(), free_firmware() and adds
free_firmware_cache(). The first two functions implement a very
simple cache and the latter is used to actually release all the stored
firmwares when the module is unloaded.
When CONFIG_PM is not enabled those functions act as before, that is
free_firmware() releases the firmware immediately and
free_firmware_cache() does nothing.
Signed-off-by: Giuliano Pochini <pochini@shiny.it>
Signed-off-by: Takashi Iwai <tiwai@suse.de>
diff --git a/sound/pci/echoaudio/echoaudio.h b/sound/pci/echoaudio/echoaudio.h
index be76ef3..a84c0d1 100644
--- a/sound/pci/echoaudio/echoaudio.h
+++ b/sound/pci/echoaudio/echoaudio.h
@@ -449,6 +449,9 @@
volatile u32 __iomem *dsp_registers; /* DSP's register base */
u32 active_mask; /* Chs. active mask or
* punks out */
+#ifdef CONFIG_PM
+ const struct firmware *fw_cache[8]; /* Cached firmwares */
+#endif
#ifdef ECHOCARD_HAS_MIDI
u16 mtc_state; /* State for MIDI input parsing state machine */