Changeset 763444e in mainline

Timestamp:

2011-09-25T19:41:22Z (13 years ago)

Author:

Jan Vesely <jano.vesely@…>

Branches:

lfn, master, serial, ticket/834-toolchain-update, topic/msim-upgrade, topic/simplify-dev-export

Children:

57542304

Parents:

0687e1b

Message:

sb16: Implement direct mode digital sound I/O.

Location:

uspace/drv/audio/sb16

Files:

• Makefile (modified) (1 diff)
• dsp.c (added)
• dsp.h (modified) (3 diffs)
• dsp_commands.h (modified) (1 diff)
• sb16.c (modified) (1 diff)

uspace/drv/audio/sb16/Makefile

@@ -38 +38 @@
 
 SOURCES = \
+        dsp.c \
         main.c \
         mixer.c \

uspace/drv/audio/sb16/dsp.h

@@ -26 +26 @@
  * THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
  */
-
 /** @addtogroup drvaudiosb16
  * @{
  */
 /** @file
- * @brief SB16 main structure combining all functionality
+ * @brief Sound Blaster Digital Sound Processor (DSP) helper functions.
  */
 #ifndef DRV_AUDIO_SB16_DSP_H
@@ -37 +36 @@
 
 #include <libarch/ddi.h>
+#include <errno.h>
 
 #include "registers.h"
+#include "dsp_commands.h"
 
 #ifndef DSP_PIO_DELAY
@@ -90 +91 @@
         pio_write_8(&regs->dsp_reset, 0);
 }
+/*----------------------------------------------------------------------------*/
+int dsp_play_direct(sb16_regs_t *regs, const uint8_t *data, size_t size,
+    unsigned sample_rate, unsigned channels, unsigned bit_depth);
 #endif
 /**

uspace/drv/audio/sb16/dsp_commands.h

@@ -36 +36 @@
 #define DRV_AUDIO_SB16_DSP_COMMANDS_H
 
-/** See SoundBlaster Series HW programming Guide Chapter 6. */
+/** See Sound Blaster Series HW programming Guide Chapter 6. */
 typedef enum dsp_command {
         DIRECT_8B_OUTPUT = 0x20, /* Followed by unsigned byte of digital data,

uspace/drv/audio/sb16/sb16.c

@@ -87 +87 @@
         dsp_read(drv->regs, &drv->dsp_version.major);
         dsp_read(drv->regs, &drv->dsp_version.minor);
-        ddf_log_note("Sound blaster DSP (%x.%x) Initialized.\n",
+        ddf_log_note("Sound blaster DSP (%x.%x) initialized.\n",
             drv->dsp_version.major, drv->dsp_version.minor);