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* handles correctly failures during setup

Browse Source 
* style fixes
* fixed warnings


git-svn-id: file:///srv/svn/repos/haiku/haiku/trunk@33279 a95241bf-73f2-0310-859d-f6bbb57e9c96
This commit is contained in:
Jérôme Duval
2009-09-24 22:41:12 +00:00
parent 430889581a
commit b964c116d7
1 changed files with 79 additions and 20 deletions
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src/add-ons/kernel/drivers/audio/emuxki/emuxki.c
+79 -20
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@@ -88,7 +88,8 @@ emuxki_settings current_settings = {
2 // buffer count 2 // buffer count
}; };
status_t emuxki_init(emuxki_dev * card); status_t emuxki_init(emuxki_dev *card);
void emuxki_shutdown(emuxki_dev *card);
extern device_hooks multi_hooks; extern device_hooks multi_hooks;
extern device_hooks midi_hooks; extern device_hooks midi_hooks;
@@ -135,13 +136,14 @@ dump_hardware_regs(device_config *config)
} }
static void
/*static void
trace_hardware_regs(device_config *config) trace_hardware_regs(device_config *config)
{ {
TRACE(("EMU_IPR = %#08x\n",emuxki_reg_read_32(config, EMU_IPR))); TRACE(("EMU_IPR = %#08x\n",emuxki_reg_read_32(config, EMU_IPR)));
TRACE(("EMU_INTE = %#08x\n",emuxki_reg_read_32(config, EMU_INTE))); TRACE(("EMU_INTE = %#08x\n",emuxki_reg_read_32(config, EMU_INTE)));
TRACE(("EMU_HCFG = %#08x\n",emuxki_reg_read_32(config, EMU_HCFG))); TRACE(("EMU_HCFG = %#08x\n",emuxki_reg_read_32(config, EMU_HCFG)));
} }*/
/* Misc stuff relative to Emuxki */ /* Misc stuff relative to Emuxki */
@@ -151,6 +153,7 @@ int emu10k1_recbuf_sizes[] = {
14366, 16384, 20480, 24576, 28672, 32768, 40960, 49152, 57344, 65536 14366, 16384, 20480, 24576, 28672, 32768, 40960, 49152, 57344, 65536
}; };
static uint32 static uint32
emuxki_rate_to_pitch(uint32 rate) emuxki_rate_to_pitch(uint32 rate)
{ {
@@ -230,6 +233,7 @@ emuxki_mem_new(emuxki_dev *card, int ptbidx, size_t size)
return mem; return mem;
} }
static void static void
emuxki_mem_delete(emuxki_mem *mem) emuxki_mem_delete(emuxki_mem *mem)
{ {
@@ -238,6 +242,7 @@ emuxki_mem_delete(emuxki_mem *mem)
free(mem); free(mem);
} }
void * void *
emuxki_pmem_alloc(emuxki_dev *card, size_t size) emuxki_pmem_alloc(emuxki_dev *card, size_t size)
{ {
@@ -290,6 +295,7 @@ emuxki_pmem_alloc(emuxki_dev *card, size_t size)
return NULL; return NULL;
} }
void * void *
emuxki_rmem_alloc(emuxki_dev *card, size_t size) emuxki_rmem_alloc(emuxki_dev *card, size_t size)
{ {
@@ -307,6 +313,7 @@ emuxki_rmem_alloc(emuxki_dev *card, size_t size)
return mem->log_base; return mem->log_base;
} }
void void
emuxki_mem_free(emuxki_dev *card, void *ptr) emuxki_mem_free(emuxki_dev *card, void *ptr)
{ {
@@ -404,6 +411,7 @@ emuxki_chanparms_set_defaults(emuxki_channel *chan)
chan->tremolo_depth = 0x00; chan->tremolo_depth = 0x00;
} }
static emuxki_channel * static emuxki_channel *
emuxki_channel_new(emuxki_voice *voice, uint8 num) emuxki_channel_new(emuxki_voice *voice, uint8 num)
{ {
@@ -419,6 +427,7 @@ emuxki_channel_new(emuxki_voice *voice, uint8 num)
return chan; return chan;
} }
static void static void
emuxki_channel_delete(emuxki_channel *chan) emuxki_channel_delete(emuxki_channel *chan)
{ {
@@ -426,6 +435,7 @@ emuxki_channel_delete(emuxki_channel *chan)
free(chan); free(chan);
} }
static void static void
emuxki_channel_set_fxsend(emuxki_channel *chan, emuxki_channel_set_fxsend(emuxki_channel *chan,
emuxki_chanparms_fxsend *fxsend) emuxki_chanparms_fxsend *fxsend)
@@ -451,6 +461,7 @@ emuxki_channel_set_fxsend(emuxki_channel *chan,
chan->fxsend.h.dest = fxsend->h.dest; chan->fxsend.h.dest = fxsend->h.dest;
} }
static void static void
emuxki_channel_set_srate(emuxki_channel *chan, uint32 srate) emuxki_channel_set_srate(emuxki_channel *chan, uint32 srate)
{ {
@@ -463,6 +474,7 @@ emuxki_channel_set_srate(emuxki_channel *chan, uint32 srate)
(emuxki_rate_to_pitch(srate) >> 8) & EMU_CHAN_IP_MASK; (emuxki_rate_to_pitch(srate) >> 8) & EMU_CHAN_IP_MASK;
} }
/* voice params must be set before calling this */ /* voice params must be set before calling this */
static void static void
emuxki_channel_set_bufparms(emuxki_channel *chan, emuxki_channel_set_bufparms(emuxki_channel *chan,
@@ -472,6 +484,7 @@ emuxki_channel_set_bufparms(emuxki_channel *chan,
chan->loop.end = end & EMU_CHAN_DSL_LOOPENDADDR_MASK; chan->loop.end = end & EMU_CHAN_DSL_LOOPENDADDR_MASK;
} }
static void static void
emuxki_channel_commit_fx(emuxki_channel *chan) emuxki_channel_commit_fx(emuxki_channel *chan)
{ {
@@ -515,6 +528,7 @@ emuxki_channel_commit_fx(emuxki_channel *chan)
(chan->fxsend.c.level << 24) | chan->loop.start); (chan->fxsend.c.level << 24) | chan->loop.start);
} }
static void static void
emuxki_channel_commit_parms(emuxki_channel *chan) emuxki_channel_commit_parms(emuxki_channel *chan)
{ {
@@ -576,6 +590,7 @@ emuxki_channel_commit_parms(emuxki_channel *chan)
//splx(s); //splx(s);
} }
static void static void
emuxki_channel_start(emuxki_channel *chan) emuxki_channel_start(emuxki_channel *chan)
{ {
@@ -622,6 +637,7 @@ emuxki_channel_start(emuxki_channel *chan)
//splx(s); //splx(s);
} }
static void static void
emuxki_channel_stop(emuxki_channel *chan) emuxki_channel_stop(emuxki_channel *chan)
{ {
@@ -641,8 +657,9 @@ emuxki_channel_stop(emuxki_channel *chan)
//splx(s); //splx(s);
} }
/* Emuxki voice functions */ /* Emuxki voice functions */
static void /*static void
emuxki_dump_voice(emuxki_voice *voice) emuxki_dump_voice(emuxki_voice *voice)
{ {
LOG(("voice->use = %#u\n", voice->use)); LOG(("voice->use = %#u\n", voice->use));
@@ -662,7 +679,8 @@ emuxki_dump_voice(emuxki_voice *voice)
LOG(("voice->trigblk = %#u\n", voice->trigblk)); LOG(("voice->trigblk = %#u\n", voice->trigblk));
LOG(("voice->blkmod = %#u\n", voice->blkmod)); LOG(("voice->blkmod = %#u\n", voice->blkmod));
LOG(("voice->timerate = %#u\n", voice->timerate)); LOG(("voice->timerate = %#u\n", voice->timerate));
} }*/
/* Allocate channels for voice in case of play voice */ /* Allocate channels for voice in case of play voice */
static status_t static status_t
@@ -700,6 +718,7 @@ emuxki_voice_channel_create(emuxki_voice *voice)
return EAGAIN; return EAGAIN;
} }
/* When calling this function we assume no one can access the voice */ /* When calling this function we assume no one can access the voice */
static void static void
emuxki_voice_channel_destroy(emuxki_voice *voice) emuxki_voice_channel_destroy(emuxki_voice *voice)
@@ -711,6 +730,7 @@ emuxki_voice_channel_destroy(emuxki_voice *voice)
voice->dataloc.chan[1] = NULL; voice->dataloc.chan[1] = NULL;
} }
static status_t static status_t
emuxki_voice_dataloc_create(emuxki_voice *voice) emuxki_voice_dataloc_create(emuxki_voice *voice)
{ {
@@ -725,6 +745,7 @@ emuxki_voice_dataloc_create(emuxki_voice *voice)
return B_OK; return B_OK;
} }
static void static void
emuxki_voice_dataloc_destroy(emuxki_voice *voice) emuxki_voice_dataloc_destroy(emuxki_voice *voice)
{ {
@@ -750,10 +771,12 @@ emuxki_voice_dataloc_destroy(emuxki_voice *voice)
return; return;
} }
emuxki_chan_write(&voice->stream->card->config, 0, buffaddr_reg, 0); emuxki_chan_write(&voice->stream->card->config, 0, buffaddr_reg, 0);
emuxki_chan_write(&voice->stream->card->config, 0, buffsize_reg, EMU_RECBS_BUFSIZE_NONE); emuxki_chan_write(&voice->stream->card->config, 0, buffsize_reg,
EMU_RECBS_BUFSIZE_NONE);
} }
} }
static void static void
emuxki_voice_fxupdate(emuxki_voice *voice) emuxki_voice_fxupdate(emuxki_voice *voice)
{ {
@@ -1017,6 +1040,7 @@ emuxki_voice_fxupdate(emuxki_voice *voice)
} }
} }
static status_t static status_t
emuxki_voice_set_stereo(emuxki_voice *voice, uint8 stereo) emuxki_voice_set_stereo(emuxki_voice *voice, uint8 stereo)
{ {
@@ -1030,6 +1054,7 @@ emuxki_voice_set_stereo(emuxki_voice *voice, uint8 stereo)
return B_OK; return B_OK;
} }
static status_t static status_t
emuxki_voice_set_srate(emuxki_voice *voice, uint32 srate) emuxki_voice_set_srate(emuxki_voice *voice, uint32 srate)
{ {
@@ -1045,6 +1070,7 @@ emuxki_voice_set_srate(emuxki_voice *voice, uint32 srate)
return B_OK; return B_OK;
} }
status_t status_t
emuxki_voice_set_audioparms(emuxki_voice *voice, uint8 stereo, emuxki_voice_set_audioparms(emuxki_voice *voice, uint8 stereo,
uint8 b16, uint32 srate) uint8 b16, uint32 srate)
@@ -1065,6 +1091,7 @@ emuxki_voice_set_audioparms(emuxki_voice *voice, uint8 stereo,
return B_OK; return B_OK;
} }
status_t status_t
emuxki_voice_set_recparms(emuxki_voice *voice, emuxki_recsrc_t recsrc, emuxki_voice_set_recparms(emuxki_voice *voice, emuxki_recsrc_t recsrc,
emuxki_recparams *recparams) emuxki_recparams *recparams)
@@ -1090,6 +1117,7 @@ emuxki_voice_set_recparms(emuxki_voice *voice, emuxki_recsrc_t recsrc,
return B_OK; return B_OK;
} }
/* voice audio parms (see just before) must be set prior to this */ /* voice audio parms (see just before) must be set prior to this */
status_t status_t
emuxki_voice_set_bufparms(emuxki_voice *voice, void *ptr, emuxki_voice_set_bufparms(emuxki_voice *voice, void *ptr,
@@ -1137,6 +1165,7 @@ emuxki_voice_set_bufparms(emuxki_voice *voice, void *ptr,
return error; return error;
} }
status_t status_t
emuxki_voice_commit_parms(emuxki_voice *voice) emuxki_voice_commit_parms(emuxki_voice *voice)
{ {
@@ -1178,6 +1207,7 @@ emuxki_voice_commit_parms(emuxki_voice *voice)
return B_OK; return B_OK;
} }
static uint32 static uint32
emuxki_voice_curaddr(emuxki_voice *voice) emuxki_voice_curaddr(emuxki_voice *voice)
{ {
@@ -1209,6 +1239,7 @@ emuxki_voice_curaddr(emuxki_voice *voice)
} }
} }
static void static void
emuxki_resched_timer(emuxki_dev *card) emuxki_resched_timer(emuxki_dev *card)
{ {
@@ -1252,6 +1283,7 @@ emuxki_resched_timer(emuxki_dev *card)
//splx(s); //splx(s);
} }
static uint32 static uint32
emuxki_voice_adc_rate(emuxki_voice *voice) emuxki_voice_adc_rate(emuxki_voice *voice)
{ {
@@ -1298,6 +1330,7 @@ emuxki_voice_adc_rate(emuxki_voice *voice)
return 0; return 0;
} }
void void
emuxki_voice_start(emuxki_voice *voice) emuxki_voice_start(emuxki_voice *voice)
{ {
@@ -1352,6 +1385,7 @@ emuxki_voice_start(emuxki_voice *voice)
} }
} }
void void
emuxki_voice_halt(emuxki_voice *voice) emuxki_voice_halt(emuxki_voice *voice)
{ {
@@ -1389,6 +1423,7 @@ emuxki_voice_halt(emuxki_voice *voice)
} }
} }
emuxki_voice * emuxki_voice *
emuxki_voice_new(emuxki_stream *stream, uint8 use, uint8 voicenum) emuxki_voice_new(emuxki_stream *stream, uint8 use, uint8 voicenum)
{ {
@@ -1419,6 +1454,7 @@ emuxki_voice_new(emuxki_stream *stream, uint8 use, uint8 voicenum)
return voice; return voice;
} }
void void
emuxki_voice_delete(emuxki_voice *voice) emuxki_voice_delete(emuxki_voice *voice)
{ {
@@ -1479,13 +1515,16 @@ emuxki_stream_set_audioparms(emuxki_stream *stream, bool stereo, uint8 channels,
if (!stream->first_voice) if (!stream->first_voice)
stream->first_voice = voice; stream->first_voice = voice;
LIST_INSERT_HEAD((&stream->voices), voice, next); LIST_INSERT_HEAD((&stream->voices), voice, next);
if ((error = emuxki_voice_set_audioparms(voice, stream->stereo, stream->b16, stream->sample_rate))) if ((error = emuxki_voice_set_audioparms(voice, stream->stereo,
stream->b16, stream->sample_rate)))
return error; return error;
if (stream->use & EMU_USE_PLAY) if (stream->use & EMU_USE_PLAY)
buffer = emuxki_pmem_alloc(stream->card, stream->bufframes * frame_size * stream->bufcount); buffer = emuxki_pmem_alloc(stream->card, stream->bufframes
* frame_size * stream->bufcount);
else else
buffer = emuxki_rmem_alloc(stream->card, stream->bufframes * frame_size * stream->bufcount); buffer = emuxki_rmem_alloc(stream->card, stream->bufframes
* frame_size * stream->bufcount);
emuxki_voice_set_bufparms(voice, buffer, emuxki_voice_set_bufparms(voice, buffer,
stream->bufframes * frame_size * stream->bufcount, stream->bufframes * frame_size * stream->bufcount,
@@ -1496,6 +1535,7 @@ emuxki_stream_set_audioparms(emuxki_stream *stream, bool stereo, uint8 channels,
return B_OK; return B_OK;
} }
status_t status_t
emuxki_stream_set_recparms(emuxki_stream *stream, emuxki_recsrc_t recsrc, emuxki_stream_set_recparms(emuxki_stream *stream, emuxki_recsrc_t recsrc,
emuxki_recparams *recparams) emuxki_recparams *recparams)
@@ -1527,6 +1567,7 @@ emuxki_stream_set_recparms(emuxki_stream *stream, emuxki_recsrc_t recsrc,
return B_OK; return B_OK;
} }
status_t status_t
emuxki_stream_commit_parms(emuxki_stream *stream) emuxki_stream_commit_parms(emuxki_stream *stream)
{ {
@@ -1541,6 +1582,7 @@ emuxki_stream_commit_parms(emuxki_stream *stream)
return B_OK; return B_OK;
} }
status_t status_t
emuxki_stream_get_nth_buffer(emuxki_stream *stream, uint8 chan, uint8 buf, emuxki_stream_get_nth_buffer(emuxki_stream *stream, uint8 chan, uint8 buf,
char** buffer, size_t *stride) char** buffer, size_t *stride)
@@ -1563,7 +1605,8 @@ emuxki_stream_get_nth_buffer(emuxki_stream *stream, uint8 chan, uint8 buf,
else else
break; break;
if (voice) { if (voice) {
*buffer = (char*)voice->buffer->log_base + (buf * stream->bufframes * sample_size * 2); *buffer = (char*)voice->buffer->log_base
+ (buf * stream->bufframes * sample_size * 2);
if (chan % 2 == 1) if (chan % 2 == 1)
*buffer += sample_size; *buffer += sample_size;
*stride = sample_size * 2; *stride = sample_size * 2;
@@ -1579,7 +1622,8 @@ emuxki_stream_get_nth_buffer(emuxki_stream *stream, uint8 chan, uint8 buf,
else else
break; break;
if (voice) { if (voice) {
*buffer = (char*)voice->buffer->log_base + (buf * stream->bufframes * sample_size); *buffer = (char*)voice->buffer->log_base
+ (buf * stream->bufframes * sample_size);
*stride = sample_size; *stride = sample_size;
} else } else
return B_ERROR; return B_ERROR;
@@ -1588,6 +1632,7 @@ emuxki_stream_get_nth_buffer(emuxki_stream *stream, uint8 chan, uint8 buf,
return B_OK; return B_OK;
} }
void void
emuxki_stream_start(emuxki_stream *stream, void (*inth) (void *), void *inthparam) emuxki_stream_start(emuxki_stream *stream, void (*inth) (void *), void *inthparam)
{ {
@@ -1603,6 +1648,7 @@ emuxki_stream_start(emuxki_stream *stream, void (*inth) (void *), void *inthpara
stream->state |= EMU_STATE_STARTED; stream->state |= EMU_STATE_STARTED;
} }
void void
emuxki_stream_halt(emuxki_stream *stream) emuxki_stream_halt(emuxki_stream *stream)
{ {
@@ -1615,6 +1661,7 @@ emuxki_stream_halt(emuxki_stream *stream)
stream->state &= ~EMU_STATE_STARTED; stream->state &= ~EMU_STATE_STARTED;
} }
emuxki_stream * emuxki_stream *
emuxki_stream_new(emuxki_dev *card, uint8 use, uint32 bufframes, uint8 bufcount) emuxki_stream_new(emuxki_dev *card, uint8 use, uint32 bufframes, uint8 bufcount)
{ {
@@ -1654,6 +1701,7 @@ emuxki_stream_new(emuxki_dev *card, uint8 use, uint32 bufframes, uint8 bufcount)
return stream; return stream;
} }
void void
emuxki_stream_delete(emuxki_stream *stream) emuxki_stream_delete(emuxki_stream *stream)
{ {
@@ -1678,6 +1726,7 @@ emuxki_stream_delete(emuxki_stream *stream)
free(stream); free(stream);
} }
/* Emuxki gprs */ /* Emuxki gprs */
// 87 values from 0.0dB to -xdB (-0.75dB each) // 87 values from 0.0dB to -xdB (-0.75dB each)
static uint32 db_table[] = { static uint32 db_table[] = {
@@ -1696,6 +1745,7 @@ static uint32 db_table[] = {
1520301, 1394536, 1279174 1520301, 1394536, 1279174
}; };
void void
emuxki_gpr_set(emuxki_dev *card, emuxki_gpr *gpr, int32 type, float *values) emuxki_gpr_set(emuxki_dev *card, emuxki_gpr *gpr, int32 type, float *values)
{ {
@@ -1736,6 +1786,7 @@ emuxki_gpr_set(emuxki_dev *card, emuxki_gpr *gpr, int32 type, float *values)
} }
} }
void void
emuxki_gpr_get(emuxki_dev *card, emuxki_gpr *gpr, int32 type, float *values) emuxki_gpr_get(emuxki_dev *card, emuxki_gpr *gpr, int32 type, float *values)
{ {
@@ -1756,6 +1807,7 @@ emuxki_gpr_get(emuxki_dev *card, emuxki_gpr *gpr, int32 type, float *values)
} }
} }
void void
emuxki_gpr_dump(emuxki_dev * card, uint16 count) emuxki_gpr_dump(emuxki_dev * card, uint16 count)
{ {
@@ -1770,6 +1822,7 @@ emuxki_gpr_dump(emuxki_dev * card, uint16 count)
} }
} }
static emuxki_gpr * static emuxki_gpr *
emuxki_gpr_new(emuxki_dev *card, const char *name, emuxki_gpr_type type, uint16 *gpr_num, emuxki_gpr_new(emuxki_dev *card, const char *name, emuxki_gpr_type type, uint16 *gpr_num,
float default_value, float default_mute, float min_gain, float max_gain, float granularity) float default_value, float default_mute, float min_gain, float max_gain, float granularity)
@@ -1861,6 +1914,7 @@ emuxki_parameter_set(emuxki_dev *card, const void* cookie, int32 type, int32 *va
} }
} }
void void
emuxki_parameter_get(emuxki_dev *card, const void* cookie, int32 type, int32 *value) emuxki_parameter_get(emuxki_dev *card, const void* cookie, int32 type, int32 *value)
{ {
@@ -1876,6 +1930,7 @@ emuxki_parameter_get(emuxki_dev *card, const void* cookie, int32 type, int32 *va
} }
} }
/* Emuxki interrupt */ /* Emuxki interrupt */
static int32 static int32
emuxki_int(void *arg) emuxki_int(void *arg)
@@ -2052,6 +2107,7 @@ init_hardware(void)
return err; return err;
} }
static void static void
make_device_names( make_device_names(
emuxki_dev * card) emuxki_dev * card)
@@ -2076,7 +2132,7 @@ emuxki_setup(emuxki_dev * card)
{ {
status_t err = B_OK; status_t err = B_OK;
unsigned char cmd; unsigned char cmd;
int32 base; //int32 base;
PRINT(("setup_emuxki(%p)\n", card)); PRINT(("setup_emuxki(%p)\n", card));
@@ -2217,7 +2273,12 @@ emuxki_setup(emuxki_dev * card)
} }
PRINT(("installing interrupt : %lx\n", card->config.irq)); PRINT(("installing interrupt : %lx\n", card->config.irq));
install_io_interrupt_handler(card->config.irq, emuxki_int, card, 0); err = install_io_interrupt_handler(card->config.irq, emuxki_int, card, 0);
if (err != B_OK) {
PRINT(("failed to install interrupt\n"));
emuxki_shutdown(card);
return err;
}
emuxki_inte_enable(&card->config, EMU_INTE_VOLINCRENABLE | EMU_INTE_VOLDECRENABLE emuxki_inte_enable(&card->config, EMU_INTE_VOLINCRENABLE | EMU_INTE_VOLDECRENABLE
| EMU_INTE_MUTEENABLE | EMU_INTE_FXDSPENABLE); | EMU_INTE_MUTEENABLE | EMU_INTE_FXDSPENABLE);
@@ -2238,6 +2299,7 @@ emuxki_setup(emuxki_dev * card)
return err; return err;
} }
void void
emuxki_dump_fx(emuxki_dev * card) emuxki_dump_fx(emuxki_dev * card)
{ {
@@ -2258,6 +2320,7 @@ emuxki_dump_fx(emuxki_dev * card)
} }
} }
static void static void
emuxki_initfx(emuxki_dev * card) emuxki_initfx(emuxki_dev * card)
{ {
@@ -2644,6 +2707,7 @@ emuxki_initfx(emuxki_dev * card)
emuxki_dump_fx(card); emuxki_dump_fx(card);
} }
status_t status_t
emuxki_init(emuxki_dev * card) emuxki_init(emuxki_dev * card)
{ {
@@ -2792,7 +2856,6 @@ emuxki_init(emuxki_dev * card)
} }
status_t status_t
init_driver(void) init_driver(void)
{ {
@@ -2873,8 +2936,7 @@ init_driver(void)
cards[num_cards].info = info; cards[num_cards].info = info;
if (emuxki_setup(&cards[num_cards])) { if (emuxki_setup(&cards[num_cards])) {
PRINT(("Setup of emuxki %ld failed\n", num_cards+1)); PRINT(("Setup of emuxki %ld failed\n", num_cards+1));
} } else {
else {
num_cards++; num_cards++;
} }
} }
@@ -2892,7 +2954,7 @@ init_driver(void)
} }
static void void
emuxki_shutdown(emuxki_dev *card) emuxki_shutdown(emuxki_dev *card)
{ {
uint32 i; uint32 i;
@@ -3018,6 +3080,3 @@ find_device(const char * name)
} }
int32 api_version = B_CUR_DRIVER_API_VERSION; int32 api_version = B_CUR_DRIVER_API_VERSION;