[ALSA] sb16: add request_firmware()

Load the CSP programs using request_firmware(), if possible, instead of
using the built-in firmware blobs.

Signed-off-by: Clemens Ladisch <clemens@ladisch.de>
Signed-off-by: Jaroslav Kysela <perex@suse.cz>

1 files changed, 14 insertions, 0 deletions

diff --git a/include/sound/sb16_csp.h b/include/sound/sb16_csp.h
index caf6fe21514d..736eac71d053 100644
--- a/include/sound/sb16_csp.h
+++ b/include/sound/sb16_csp.h
@@ -114,9 +114,21 @@ struct snd_sb_csp_info {
 #ifdef __KERNEL__
 #include "sb.h"
 #include "hwdep.h"
+#include <linux/firmware.h>
 
 struct snd_sb_csp;
 
+/* indices for the known CSP programs */
+enum {
+        CSP_PROGRAM_MULAW,
+        CSP_PROGRAM_ALAW,
+        CSP_PROGRAM_ADPCM_INIT,
+        CSP_PROGRAM_ADPCM_PLAYBACK,
+        CSP_PROGRAM_ADPCM_CAPTURE,
+
+        CSP_PROGRAM_COUNT
+};
+
 /*
  * CSP operators
  */
@@ -159,6 +171,8 @@ struct snd_sb_csp {
         struct snd_kcontrol *qsound_space;
 
         struct mutex access_mutex;      /* locking */
+
+        const struct firmware *csp_programs[CSP_PROGRAM_COUNT];
 };
 
 int snd_sb_csp_new(struct snd_sb *chip, int device, struct snd_hwdep ** rhwdep);