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alistair23-linux/sound/pci/asihpi/asihpi.c
Colin Ian King 6512ab68e2 ALSA: asihpi: clean up a couple of build warnings 
Variable dpcm is never used and hence can be removed. Variable
runtime is being assigned but is never read, so the assignment
is redundant and can be removed. Cleans up two clang warnings:

Value stored to 'dpcm' is never read
Value stored to 'runtime' is never read

Signed-off-by: Colin Ian King <colin.king@canonical.com>
Signed-off-by: Takashi Iwai <tiwai@suse.de>
2017-10-16 14:48:11 +02:00

3052 lines
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/*
* Asihpi soundcard
* Copyright (c) by AudioScience Inc <support@audioscience.com>
*
* This program is free software; you can redistribute it and/or modify
* it under the terms of version 2 of the GNU General Public License as
* published by the Free Software Foundation;
*
* This program is distributed in the hope that it will be useful,
* but WITHOUT ANY WARRANTY; without even the implied warranty of
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
* GNU General Public License for more details.
*
* You should have received a copy of the GNU General Public License
* along with this program; if not, write to the Free Software
* Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA
*
*
* The following is not a condition of use, merely a request:
* If you modify this program, particularly if you fix errors, AudioScience Inc
* would appreciate it if you grant us the right to use those modifications
* for any purpose including commercial applications.
*/
#include "hpi_internal.h"
#include "hpi_version.h"
#include "hpimsginit.h"
#include "hpioctl.h"
#include "hpicmn.h"
#include <linux/pci.h>
#include <linux/init.h>
#include <linux/jiffies.h>
#include <linux/slab.h>
#include <linux/time.h>
#include <linux/wait.h>
#include <linux/module.h>
#include <sound/core.h>
#include <sound/control.h>
#include <sound/pcm.h>
#include <sound/pcm_params.h>
#include <sound/info.h>
#include <sound/initval.h>
#include <sound/tlv.h>
#include <sound/hwdep.h>
MODULE_LICENSE("GPL");
MODULE_AUTHOR("AudioScience inc. <support@audioscience.com>");
MODULE_DESCRIPTION("AudioScience ALSA ASI5xxx ASI6xxx ASI87xx ASI89xx "
HPI_VER_STRING);
#if defined CONFIG_SND_DEBUG_VERBOSE
/**
* snd_printddd - very verbose debug printk
* @format: format string
*
* Works like snd_printk() for debugging purposes.
* Ignored when CONFIG_SND_DEBUG_VERBOSE is not set.
* Must set snd module debug parameter to 3 to enable at runtime.
*/
#define snd_printddd(format, args...) \
__snd_printk(3, __FILE__, __LINE__, format, ##args)
#else
#define snd_printddd(format, args...) do { } while (0)
#endif
static int index[SNDRV_CARDS] = SNDRV_DEFAULT_IDX; /* index 0-MAX */
static char *id[SNDRV_CARDS] = SNDRV_DEFAULT_STR; /* ID for this card */
static bool enable[SNDRV_CARDS] = SNDRV_DEFAULT_ENABLE_PNP;
static bool enable_hpi_hwdep = 1;
module_param_array(index, int, NULL, S_IRUGO);
MODULE_PARM_DESC(index, "ALSA index value for AudioScience soundcard.");
module_param_array(id, charp, NULL, S_IRUGO);
MODULE_PARM_DESC(id, "ALSA ID string for AudioScience soundcard.");
module_param_array(enable, bool, NULL, S_IRUGO);
MODULE_PARM_DESC(enable, "ALSA enable AudioScience soundcard.");
module_param(enable_hpi_hwdep, bool, S_IRUGO|S_IWUSR);
MODULE_PARM_DESC(enable_hpi_hwdep,
"ALSA enable HPI hwdep for AudioScience soundcard ");
/* identify driver */
#ifdef KERNEL_ALSA_BUILD
static char *build_info = "Built using headers from kernel source";
module_param(build_info, charp, S_IRUGO);
MODULE_PARM_DESC(build_info, "Built using headers from kernel source");
#else
static char *build_info = "Built within ALSA source";
module_param(build_info, charp, S_IRUGO);
MODULE_PARM_DESC(build_info, "Built within ALSA source");
#endif
/* set to 1 to dump every control from adapter to log */
static const int mixer_dump;
#define DEFAULT_SAMPLERATE 44100
static int adapter_fs = DEFAULT_SAMPLERATE;
/* defaults */
#define PERIODS_MIN 2
#define PERIOD_BYTES_MIN 2048
#define BUFFER_BYTES_MAX (512 * 1024)
#define MAX_CLOCKSOURCES (HPI_SAMPLECLOCK_SOURCE_LAST + 1 + 7)
struct clk_source {
int source;
int index;
const char *name;
};
struct clk_cache {
int count;
int has_local;
struct clk_source s[MAX_CLOCKSOURCES];
};
/* Per card data */
struct snd_card_asihpi {
struct snd_card *card;
struct pci_dev *pci;
struct hpi_adapter *hpi;
/* In low latency mode there is only one stream, a pointer to its
* private data is stored here on trigger and cleared on stop.
* The interrupt handler uses it as a parameter when calling
* snd_card_asihpi_timer_function().
*/
struct snd_card_asihpi_pcm *llmode_streampriv;
struct tasklet_struct t;
void (*pcm_start)(struct snd_pcm_substream *substream);
void (*pcm_stop)(struct snd_pcm_substream *substream);
u32 h_mixer;
struct clk_cache cc;
u16 can_dma;
u16 support_grouping;
u16 support_mrx;
u16 update_interval_frames;
u16 in_max_chans;
u16 out_max_chans;
u16 in_min_chans;
u16 out_min_chans;
};
/* Per stream data */
struct snd_card_asihpi_pcm {
struct timer_list timer;
unsigned int respawn_timer;
unsigned int hpi_buffer_attached;
unsigned int buffer_bytes;
unsigned int period_bytes;
unsigned int bytes_per_sec;
unsigned int pcm_buf_host_rw_ofs; /* Host R/W pos */
unsigned int pcm_buf_dma_ofs; /* DMA R/W offset in buffer */
unsigned int pcm_buf_elapsed_dma_ofs; /* DMA R/W offset in buffer */
unsigned int drained_count;
struct snd_pcm_substream *substream;
u32 h_stream;
struct hpi_format format;
};
/* universal stream verbs work with out or in stream handles */
/* Functions to allow driver to give a buffer to HPI for busmastering */
static u16 hpi_stream_host_buffer_attach(
u32 h_stream, /* handle to outstream. */
u32 size_in_bytes, /* size in bytes of bus mastering buffer */
u32 pci_address
)
{
struct hpi_message hm;
struct hpi_response hr;
unsigned int obj = hpi_handle_object(h_stream);
if (!h_stream)
return HPI_ERROR_INVALID_OBJ;
hpi_init_message_response(&hm, &hr, obj,
obj == HPI_OBJ_OSTREAM ?
HPI_OSTREAM_HOSTBUFFER_ALLOC :
HPI_ISTREAM_HOSTBUFFER_ALLOC);
hpi_handle_to_indexes(h_stream, &hm.adapter_index,
&hm.obj_index);
hm.u.d.u.buffer.buffer_size = size_in_bytes;
hm.u.d.u.buffer.pci_address = pci_address;
hm.u.d.u.buffer.command = HPI_BUFFER_CMD_INTERNAL_GRANTADAPTER;
hpi_send_recv(&hm, &hr);
return hr.error;
}
static u16 hpi_stream_host_buffer_detach(u32 h_stream)
{
struct hpi_message hm;
struct hpi_response hr;
unsigned int obj = hpi_handle_object(h_stream);
if (!h_stream)
return HPI_ERROR_INVALID_OBJ;
hpi_init_message_response(&hm, &hr, obj,
obj == HPI_OBJ_OSTREAM ?
HPI_OSTREAM_HOSTBUFFER_FREE :
HPI_ISTREAM_HOSTBUFFER_FREE);
hpi_handle_to_indexes(h_stream, &hm.adapter_index,
&hm.obj_index);
hm.u.d.u.buffer.command = HPI_BUFFER_CMD_INTERNAL_REVOKEADAPTER;
hpi_send_recv(&hm, &hr);
return hr.error;
}
static inline u16 hpi_stream_start(u32 h_stream)
{
if (hpi_handle_object(h_stream) == HPI_OBJ_OSTREAM)
return hpi_outstream_start(h_stream);
else
return hpi_instream_start(h_stream);
}
static inline u16 hpi_stream_stop(u32 h_stream)
{
if (hpi_handle_object(h_stream) == HPI_OBJ_OSTREAM)
return hpi_outstream_stop(h_stream);
else
return hpi_instream_stop(h_stream);
}
static inline u16 hpi_stream_get_info_ex(
u32 h_stream,
u16 *pw_state,
u32 *pbuffer_size,
u32 *pdata_in_buffer,
u32 *psample_count,
u32 *pauxiliary_data
)
{
u16 e;
if (hpi_handle_object(h_stream) == HPI_OBJ_OSTREAM)
e = hpi_outstream_get_info_ex(h_stream, pw_state,
pbuffer_size, pdata_in_buffer,
psample_count, pauxiliary_data);
else
e = hpi_instream_get_info_ex(h_stream, pw_state,
pbuffer_size, pdata_in_buffer,
psample_count, pauxiliary_data);
return e;
}
static inline u16 hpi_stream_group_add(
u32 h_master,
u32 h_stream)
{
if (hpi_handle_object(h_master) == HPI_OBJ_OSTREAM)
return hpi_outstream_group_add(h_master, h_stream);
else
return hpi_instream_group_add(h_master, h_stream);
}
static inline u16 hpi_stream_group_reset(u32 h_stream)
{
if (hpi_handle_object(h_stream) == HPI_OBJ_OSTREAM)
return hpi_outstream_group_reset(h_stream);
else
return hpi_instream_group_reset(h_stream);
}
static inline u16 hpi_stream_group_get_map(
u32 h_stream, u32 *mo, u32 *mi)
{
if (hpi_handle_object(h_stream) == HPI_OBJ_OSTREAM)
return hpi_outstream_group_get_map(h_stream, mo, mi);
else
return hpi_instream_group_get_map(h_stream, mo, mi);
}
static u16 handle_error(u16 err, int line, char *filename)
{
if (err)
printk(KERN_WARNING
"in file %s, line %d: HPI error %d\n",
filename, line, err);
return err;
}
#define hpi_handle_error(x) handle_error(x, __LINE__, __FILE__)
/***************************** GENERAL PCM ****************/
static void print_hwparams(struct snd_pcm_substream *substream,
struct snd_pcm_hw_params *p)
{
char name[16];
snd_pcm_debug_name(substream, name, sizeof(name));
snd_printdd("%s HWPARAMS\n", name);
snd_printdd(" samplerate=%dHz channels=%d format=%d subformat=%d\n",
params_rate(p), params_channels(p),
params_format(p), params_subformat(p));
snd_printdd(" buffer=%dB period=%dB period_size=%dB periods=%d\n",
params_buffer_bytes(p), params_period_bytes(p),
params_period_size(p), params_periods(p));
snd_printdd(" buffer_size=%d access=%d data_rate=%dB/s\n",
params_buffer_size(p), params_access(p),
params_rate(p) * params_channels(p) *
snd_pcm_format_width(params_format(p)) / 8);
}
static snd_pcm_format_t hpi_to_alsa_formats[] = {
-1, /* INVALID */
SNDRV_PCM_FORMAT_U8, /* HPI_FORMAT_PCM8_UNSIGNED 1 */
SNDRV_PCM_FORMAT_S16, /* HPI_FORMAT_PCM16_SIGNED 2 */
-1, /* HPI_FORMAT_MPEG_L1 3 */
SNDRV_PCM_FORMAT_MPEG, /* HPI_FORMAT_MPEG_L2 4 */
SNDRV_PCM_FORMAT_MPEG, /* HPI_FORMAT_MPEG_L3 5 */
-1, /* HPI_FORMAT_DOLBY_AC2 6 */
-1, /* HPI_FORMAT_DOLBY_AC3 7 */
SNDRV_PCM_FORMAT_S16_BE,/* HPI_FORMAT_PCM16_BIGENDIAN 8 */
-1, /* HPI_FORMAT_AA_TAGIT1_HITS 9 */
-1, /* HPI_FORMAT_AA_TAGIT1_INSERTS 10 */
SNDRV_PCM_FORMAT_S32, /* HPI_FORMAT_PCM32_SIGNED 11 */
-1, /* HPI_FORMAT_RAW_BITSTREAM 12 */
-1, /* HPI_FORMAT_AA_TAGIT1_HITS_EX1 13 */
SNDRV_PCM_FORMAT_FLOAT, /* HPI_FORMAT_PCM32_FLOAT 14 */
#if 1
/* ALSA can't handle 3 byte sample size together with power-of-2
* constraint on buffer_bytes, so disable this format
*/
-1
#else
/* SNDRV_PCM_FORMAT_S24_3LE */ /* HPI_FORMAT_PCM24_SIGNED 15 */
#endif
};
static int snd_card_asihpi_format_alsa2hpi(snd_pcm_format_t alsa_format,
u16 *hpi_format)
{
u16 format;
for (format = HPI_FORMAT_PCM8_UNSIGNED;
format <= HPI_FORMAT_PCM24_SIGNED; format++) {
if (hpi_to_alsa_formats[format] == alsa_format) {
*hpi_format = format;
return 0;
}
}
snd_printd(KERN_WARNING "failed match for alsa format %d\n",
alsa_format);
*hpi_format = 0;
return -EINVAL;
}
static void snd_card_asihpi_pcm_samplerates(struct snd_card_asihpi *asihpi,
struct snd_pcm_hardware *pcmhw)
{
u16 err;
u32 h_control;
u32 sample_rate;
int idx;
unsigned int rate_min = 200000;
unsigned int rate_max = 0;
unsigned int rates = 0;
if (asihpi->support_mrx) {
rates |= SNDRV_PCM_RATE_CONTINUOUS;
rates |= SNDRV_PCM_RATE_8000_96000;
rate_min = 8000;
rate_max = 100000;
} else {
/* on cards without SRC,
valid rates are determined by sampleclock */
err = hpi_mixer_get_control(asihpi->h_mixer,
HPI_SOURCENODE_CLOCK_SOURCE, 0, 0, 0,
HPI_CONTROL_SAMPLECLOCK, &h_control);
if (err) {
dev_err(&asihpi->pci->dev,
"No local sampleclock, err %d\n", err);
}
for (idx = -1; idx < 100; idx++) {
if (idx == -1) {
if (hpi_sample_clock_get_sample_rate(h_control,
&sample_rate))
continue;
} else if (hpi_sample_clock_query_local_rate(h_control,
idx, &sample_rate)) {
break;
}
rate_min = min(rate_min, sample_rate);
rate_max = max(rate_max, sample_rate);
switch (sample_rate) {
case 5512:
rates |= SNDRV_PCM_RATE_5512;
break;
case 8000:
rates |= SNDRV_PCM_RATE_8000;
break;
case 11025:
rates |= SNDRV_PCM_RATE_11025;
break;
case 16000:
rates |= SNDRV_PCM_RATE_16000;
break;
case 22050:
rates |= SNDRV_PCM_RATE_22050;
break;
case 32000:
rates |= SNDRV_PCM_RATE_32000;
break;
case 44100:
rates |= SNDRV_PCM_RATE_44100;
break;
case 48000:
rates |= SNDRV_PCM_RATE_48000;
break;
case 64000:
rates |= SNDRV_PCM_RATE_64000;
break;
case 88200:
rates |= SNDRV_PCM_RATE_88200;
break;
case 96000:
rates |= SNDRV_PCM_RATE_96000;
break;
case 176400:
rates |= SNDRV_PCM_RATE_176400;
break;
case 192000:
rates |= SNDRV_PCM_RATE_192000;
break;
default: /* some other rate */
rates |= SNDRV_PCM_RATE_KNOT;
}
}
}
pcmhw->rates = rates;
pcmhw->rate_min = rate_min;
pcmhw->rate_max = rate_max;
}
static int snd_card_asihpi_pcm_hw_params(struct snd_pcm_substream *substream,
struct snd_pcm_hw_params *params)
{
struct snd_pcm_runtime *runtime = substream->runtime;
struct snd_card_asihpi_pcm *dpcm = runtime->private_data;
struct snd_card_asihpi *card = snd_pcm_substream_chip(substream);
int err;
u16 format;
int width;
unsigned int bytes_per_sec;
print_hwparams(substream, params);
err = snd_pcm_lib_malloc_pages(substream, params_buffer_bytes(params));
if (err < 0)
return err;
err = snd_card_asihpi_format_alsa2hpi(params_format(params), &format);
if (err)
return err;
hpi_handle_error(hpi_format_create(&dpcm->format,
params_channels(params),
format, params_rate(params), 0, 0));
if (substream->stream == SNDRV_PCM_STREAM_CAPTURE) {
if (hpi_instream_reset(dpcm->h_stream) != 0)
return -EINVAL;
if (hpi_instream_set_format(
dpcm->h_stream, &dpcm->format) != 0)
return -EINVAL;
}
dpcm->hpi_buffer_attached = 0;
if (card->can_dma) {
err = hpi_stream_host_buffer_attach(dpcm->h_stream,
params_buffer_bytes(params), runtime->dma_addr);
if (err == 0) {
snd_printdd(
"stream_host_buffer_attach success %u %lu\n",
params_buffer_bytes(params),
(unsigned long)runtime->dma_addr);
} else {
snd_printd("stream_host_buffer_attach error %d\n",
err);
return -ENOMEM;
}
err = hpi_stream_get_info_ex(dpcm->h_stream, NULL,
&dpcm->hpi_buffer_attached, NULL, NULL, NULL);
}
bytes_per_sec = params_rate(params) * params_channels(params);
width = snd_pcm_format_width(params_format(params));
bytes_per_sec *= width;
bytes_per_sec /= 8;
if (width < 0 || bytes_per_sec == 0)
return -EINVAL;
dpcm->bytes_per_sec = bytes_per_sec;
dpcm->buffer_bytes = params_buffer_bytes(params);
dpcm->period_bytes = params_period_bytes(params);
return 0;
}
static int
snd_card_asihpi_hw_free(struct snd_pcm_substream *substream)
{
struct snd_pcm_runtime *runtime = substream->runtime;
struct snd_card_asihpi_pcm *dpcm = runtime->private_data;
if (dpcm->hpi_buffer_attached)
hpi_stream_host_buffer_detach(dpcm->h_stream);
snd_pcm_lib_free_pages(substream);
return 0;
}
static void snd_card_asihpi_runtime_free(struct snd_pcm_runtime *runtime)
{
struct snd_card_asihpi_pcm *dpcm = runtime->private_data;
kfree(dpcm);
}
static void snd_card_asihpi_pcm_timer_start(struct snd_pcm_substream *
substream)
{
struct snd_pcm_runtime *runtime = substream->runtime;
struct snd_card_asihpi_pcm *dpcm = runtime->private_data;
int expiry;
expiry = HZ / 200;
expiry = max(expiry, 1); /* don't let it be zero! */
mod_timer(&dpcm->timer, jiffies + expiry);
dpcm->respawn_timer = 1;
}
static void snd_card_asihpi_pcm_timer_stop(struct snd_pcm_substream *substream)
{
struct snd_pcm_runtime *runtime = substream->runtime;
struct snd_card_asihpi_pcm *dpcm = runtime->private_data;
dpcm->respawn_timer = 0;
del_timer(&dpcm->timer);
}
static void snd_card_asihpi_pcm_int_start(struct snd_pcm_substream *substream)
{
struct snd_card_asihpi_pcm *dpcm;
struct snd_card_asihpi *card;
dpcm = (struct snd_card_asihpi_pcm *)substream->runtime->private_data;
card = snd_pcm_substream_chip(substream);
WARN_ON(in_interrupt());
tasklet_disable(&card->t);
card->llmode_streampriv = dpcm;
tasklet_enable(&card->t);
hpi_handle_error(hpi_adapter_set_property(card->hpi->adapter->index,
HPI_ADAPTER_PROPERTY_IRQ_RATE,
card->update_interval_frames, 0));
}
static void snd_card_asihpi_pcm_int_stop(struct snd_pcm_substream *substream)
{
struct snd_card_asihpi *card;
card = snd_pcm_substream_chip(substream);
hpi_handle_error(hpi_adapter_set_property(card->hpi->adapter->index,
HPI_ADAPTER_PROPERTY_IRQ_RATE, 0, 0));
if (in_interrupt())
card->llmode_streampriv = NULL;
else {
tasklet_disable(&card->t);
card->llmode_streampriv = NULL;
tasklet_enable(&card->t);
}
}
static int snd_card_asihpi_trigger(struct snd_pcm_substream *substream,
int cmd)
{
struct snd_card_asihpi_pcm *dpcm = substream->runtime->private_data;
struct snd_card_asihpi *card = snd_pcm_substream_chip(substream);
struct snd_pcm_substream *s;
u16 e;
char name[16];
snd_pcm_debug_name(substream, name, sizeof(name));
switch (cmd) {
case SNDRV_PCM_TRIGGER_START:
snd_printdd("%s trigger start\n", name);
snd_pcm_group_for_each_entry(s, substream) {
struct snd_pcm_runtime *runtime = s->runtime;
struct snd_card_asihpi_pcm *ds = runtime->private_data;
if (snd_pcm_substream_chip(s) != card)
continue;
/* don't link Cap and Play */
if (substream->stream != s->stream)
continue;
ds->drained_count = 0;
if (s->stream == SNDRV_PCM_STREAM_PLAYBACK) {
/* How do I know how much valid data is present
* in buffer? Must be at least one period!
* Guessing 2 periods, but if
* buffer is bigger it may contain even more
* data??
*/
unsigned int preload = ds->period_bytes * 1;
snd_printddd("%d preload %d\n", s->number, preload);
hpi_handle_error(hpi_outstream_write_buf(
ds->h_stream,
&runtime->dma_area[0],
preload,
&ds->format));
ds->pcm_buf_host_rw_ofs = preload;
}
if (card->support_grouping) {
snd_printdd("%d group\n", s->number);
e = hpi_stream_group_add(
dpcm->h_stream,
ds->h_stream);
if (!e) {
snd_pcm_trigger_done(s, substream);
} else {
hpi_handle_error(e);
break;
}
} else
break;
}
/* start the master stream */
card->pcm_start(substream);
if ((substream->stream == SNDRV_PCM_STREAM_CAPTURE) ||
!card->can_dma)
hpi_handle_error(hpi_stream_start(dpcm->h_stream));
break;
case SNDRV_PCM_TRIGGER_STOP:
snd_printdd("%s trigger stop\n", name);
card->pcm_stop(substream);
snd_pcm_group_for_each_entry(s, substream) {
if (snd_pcm_substream_chip(s) != card)
continue;
/* don't link Cap and Play */
if (substream->stream != s->stream)
continue;
/*? workaround linked streams don't
transition to SETUP 20070706*/
s->runtime->status->state = SNDRV_PCM_STATE_SETUP;
if (card->support_grouping) {
snd_printdd("%d group\n", s->number);
snd_pcm_trigger_done(s, substream);
} else
break;
}
/* _prepare and _hwparams reset the stream */
hpi_handle_error(hpi_stream_stop(dpcm->h_stream));
if (substream->stream == SNDRV_PCM_STREAM_PLAYBACK)
hpi_handle_error(
hpi_outstream_reset(dpcm->h_stream));
if (card->support_grouping)
hpi_handle_error(hpi_stream_group_reset(dpcm->h_stream));
break;
case SNDRV_PCM_TRIGGER_PAUSE_RELEASE:
snd_printdd("%s trigger pause release\n", name);
card->pcm_start(substream);
hpi_handle_error(hpi_stream_start(dpcm->h_stream));
break;
case SNDRV_PCM_TRIGGER_PAUSE_PUSH:
snd_printdd("%s trigger pause push\n", name);
card->pcm_stop(substream);
hpi_handle_error(hpi_stream_stop(dpcm->h_stream));
break;
default:
snd_printd(KERN_ERR "\tINVALID\n");
return -EINVAL;
}
return 0;
}
/*algorithm outline
Without linking degenerates to getting single stream pos etc
Without mmap 2nd loop degenerates to snd_pcm_period_elapsed
*/
/*
pcm_buf_dma_ofs=get_buf_pos(s);
for_each_linked_stream(s) {
pcm_buf_dma_ofs=get_buf_pos(s);
min_buf_pos = modulo_min(min_buf_pos, pcm_buf_dma_ofs, buffer_bytes)
new_data = min(new_data, calc_new_data(pcm_buf_dma_ofs,irq_pos)
}
timer.expires = jiffies + predict_next_period_ready(min_buf_pos);
for_each_linked_stream(s) {
s->pcm_buf_dma_ofs = min_buf_pos;
if (new_data > period_bytes) {
if (mmap) {
irq_pos = (irq_pos + period_bytes) % buffer_bytes;
if (playback) {
write(period_bytes);
} else {
read(period_bytes);
}
}
snd_pcm_period_elapsed(s);
}
}
*/
/** Minimum of 2 modulo values. Works correctly when the difference between
* the values is less than half the modulus
*/
static inline unsigned int modulo_min(unsigned int a, unsigned int b,
unsigned long int modulus)
{
unsigned int result;
if (((a-b) % modulus) < (modulus/2))
result = b;
else
result = a;
return result;
}
/** Timer function, equivalent to interrupt service routine for cards
*/
static void snd_card_asihpi_timer_function(struct timer_list *t)
{
struct snd_card_asihpi_pcm *dpcm = from_timer(dpcm, t, timer);
struct snd_pcm_substream *substream = dpcm->substream;
struct snd_card_asihpi *card = snd_pcm_substream_chip(substream);
struct snd_pcm_runtime *runtime;
struct snd_pcm_substream *s;
unsigned int newdata = 0;
unsigned int pcm_buf_dma_ofs, min_buf_pos = 0;
unsigned int remdata, xfercount, next_jiffies;
int first = 1;
int loops = 0;
u16 state;
u32 buffer_size, bytes_avail, samples_played, on_card_bytes;
char name[16];
snd_pcm_debug_name(substream, name, sizeof(name));
/* find minimum newdata and buffer pos in group */
snd_pcm_group_for_each_entry(s, substream) {
struct snd_card_asihpi_pcm *ds = s->runtime->private_data;
runtime = s->runtime;
if (snd_pcm_substream_chip(s) != card)
continue;
/* don't link Cap and Play */
if (substream->stream != s->stream)
continue;
hpi_handle_error(hpi_stream_get_info_ex(
ds->h_stream, &state,
&buffer_size, &bytes_avail,
&samples_played, &on_card_bytes));
/* number of bytes in on-card buffer */
runtime->delay = on_card_bytes;
if (!card->can_dma)
on_card_bytes = bytes_avail;
if (s->stream == SNDRV_PCM_STREAM_PLAYBACK) {
pcm_buf_dma_ofs = ds->pcm_buf_host_rw_ofs - bytes_avail;
if (state == HPI_STATE_STOPPED) {
if (bytes_avail == 0) {
hpi_handle_error(hpi_stream_start(ds->h_stream));
snd_printdd("P%d start\n", s->number);
ds->drained_count = 0;
}
} else if (state == HPI_STATE_DRAINED) {
snd_printd(KERN_WARNING "P%d drained\n",
s->number);
ds->drained_count++;
if (ds->drained_count > 20) {
snd_pcm_stop_xrun(s);
continue;
}
} else {
ds->drained_count = 0;
}
} else
pcm_buf_dma_ofs = bytes_avail + ds->pcm_buf_host_rw_ofs;
if (first) {
/* can't statically init min when wrap is involved */
min_buf_pos = pcm_buf_dma_ofs;
newdata = (pcm_buf_dma_ofs - ds->pcm_buf_elapsed_dma_ofs) % ds->buffer_bytes;
first = 0;
} else {
min_buf_pos =
modulo_min(min_buf_pos, pcm_buf_dma_ofs, UINT_MAX+1L);
newdata = min(
(pcm_buf_dma_ofs - ds->pcm_buf_elapsed_dma_ofs) % ds->buffer_bytes,
newdata);
}
snd_printddd(
"timer1, %s, %d, S=%d, elap=%d, rw=%d, dsp=%d, left=%d, aux=%d, space=%d, hw_ptr=%ld, appl_ptr=%ld\n",
name, s->number, state,
ds->pcm_buf_elapsed_dma_ofs,
ds->pcm_buf_host_rw_ofs,
pcm_buf_dma_ofs,
(int)bytes_avail,
(int)on_card_bytes,
buffer_size-bytes_avail,
(unsigned long)frames_to_bytes(runtime,
runtime->status->hw_ptr),
(unsigned long)frames_to_bytes(runtime,
runtime->control->appl_ptr)
);
loops++;
}
pcm_buf_dma_ofs = min_buf_pos;
remdata = newdata % dpcm->period_bytes;
xfercount = newdata - remdata; /* a multiple of period_bytes */
/* come back when on_card_bytes has decreased enough to allow
write to happen, or when data has been consumed to make another
period
*/
if (xfercount && (on_card_bytes > dpcm->period_bytes))
next_jiffies = ((on_card_bytes - dpcm->period_bytes) * HZ / dpcm->bytes_per_sec);
else
next_jiffies = ((dpcm->period_bytes - remdata) * HZ / dpcm->bytes_per_sec);
next_jiffies = max(next_jiffies, 1U);
dpcm->timer.expires = jiffies + next_jiffies;
snd_printddd("timer2, jif=%d, buf_pos=%d, newdata=%d, xfer=%d\n",
next_jiffies, pcm_buf_dma_ofs, newdata, xfercount);
snd_pcm_group_for_each_entry(s, substream) {
struct snd_card_asihpi_pcm *ds = s->runtime->private_data;
/* don't link Cap and Play */
if (substream->stream != s->stream)
continue;
/* Store dma offset for use by pointer callback */
ds->pcm_buf_dma_ofs = pcm_buf_dma_ofs;
if (xfercount &&
/* Limit use of on card fifo for playback */
((on_card_bytes <= ds->period_bytes) ||
(s->stream == SNDRV_PCM_STREAM_CAPTURE)))
{
unsigned int buf_ofs = ds->pcm_buf_host_rw_ofs % ds->buffer_bytes;
unsigned int xfer1, xfer2;
char *pd = &s->runtime->dma_area[buf_ofs];
if (card->can_dma) { /* buffer wrap is handled at lower level */
xfer1 = xfercount;
xfer2 = 0;
} else {
xfer1 = min(xfercount, ds->buffer_bytes - buf_ofs);
xfer2 = xfercount - xfer1;
}
if (s->stream == SNDRV_PCM_STREAM_PLAYBACK) {
snd_printddd("write1, P=%d, xfer=%d, buf_ofs=%d\n",
s->number, xfer1, buf_ofs);
hpi_handle_error(
hpi_outstream_write_buf(
ds->h_stream, pd, xfer1,
&ds->format));
if (xfer2) {
pd = s->runtime->dma_area;
snd_printddd("write2, P=%d, xfer=%d, buf_ofs=%d\n",
s->number,
xfercount - xfer1, buf_ofs);
hpi_handle_error(
hpi_outstream_write_buf(
ds->h_stream, pd,
xfercount - xfer1,
&ds->format));
}
} else {
snd_printddd("read1, C=%d, xfer=%d\n",
s->number, xfer1);
hpi_handle_error(
hpi_instream_read_buf(
ds->h_stream,
pd, xfer1));
if (xfer2) {
pd = s->runtime->dma_area;
snd_printddd("read2, C=%d, xfer=%d\n",
s->number, xfer2);
hpi_handle_error(
hpi_instream_read_buf(
ds->h_stream,
pd, xfer2));
}
}
/* ? host_rw_ofs always ahead of elapsed_dma_ofs by preload size? */
ds->pcm_buf_host_rw_ofs += xfercount;
ds->pcm_buf_elapsed_dma_ofs += xfercount;
snd_pcm_period_elapsed(s);
}
}
if (!card->hpi->interrupt_mode && dpcm->respawn_timer)
add_timer(&dpcm->timer);
}
static void snd_card_asihpi_int_task(unsigned long data)
{
struct hpi_adapter *a = (struct hpi_adapter *)data;
struct snd_card_asihpi *asihpi;
WARN_ON(!a || !a->snd_card || !a->snd_card->private_data);
asihpi = (struct snd_card_asihpi *)a->snd_card->private_data;
if (asihpi->llmode_streampriv)
snd_card_asihpi_timer_function(
&asihpi->llmode_streampriv->timer);
}
static void snd_card_asihpi_isr(struct hpi_adapter *a)
{
struct snd_card_asihpi *asihpi;
WARN_ON(!a || !a->snd_card || !a->snd_card->private_data);
asihpi = (struct snd_card_asihpi *)a->snd_card->private_data;
tasklet_schedule(&asihpi->t);
}
/***************************** PLAYBACK OPS ****************/
static int snd_card_asihpi_playback_ioctl(struct snd_pcm_substream *substream,
unsigned int cmd, void *arg)
{
char name[16];
snd_pcm_debug_name(substream, name, sizeof(name));
snd_printddd(KERN_INFO "%s ioctl %d\n", name, cmd);
return snd_pcm_lib_ioctl(substream, cmd, arg);
}
static int snd_card_asihpi_playback_prepare(struct snd_pcm_substream *
substream)
{
struct snd_pcm_runtime *runtime = substream->runtime;
struct snd_card_asihpi_pcm *dpcm = runtime->private_data;
snd_printdd("P%d prepare\n", substream->number);
hpi_handle_error(hpi_outstream_reset(dpcm->h_stream));
dpcm->pcm_buf_host_rw_ofs = 0;
dpcm->pcm_buf_dma_ofs = 0;
dpcm->pcm_buf_elapsed_dma_ofs = 0;
return 0;
}
static snd_pcm_uframes_t
snd_card_asihpi_playback_pointer(struct snd_pcm_substream *substream)
{
struct snd_pcm_runtime *runtime = substream->runtime;
struct snd_card_asihpi_pcm *dpcm = runtime->private_data;
snd_pcm_uframes_t ptr;
char name[16];
snd_pcm_debug_name(substream, name, sizeof(name));
ptr = bytes_to_frames(runtime, dpcm->pcm_buf_dma_ofs % dpcm->buffer_bytes);
snd_printddd("%s, pointer=%ld\n", name, (unsigned long)ptr);
return ptr;
}
static u64 snd_card_asihpi_playback_formats(struct snd_card_asihpi *asihpi,
u32 h_stream)
{
struct hpi_format hpi_format;
u16 format;
u16 err;
u32 h_control;
u32 sample_rate = 48000;
u64 formats = 0;
/* on cards without SRC, must query at valid rate,
* maybe set by external sync
*/
err = hpi_mixer_get_control(asihpi->h_mixer,
HPI_SOURCENODE_CLOCK_SOURCE, 0, 0, 0,
HPI_CONTROL_SAMPLECLOCK, &h_control);
if (!err)
err = hpi_sample_clock_get_sample_rate(h_control,
&sample_rate);
for (format = HPI_FORMAT_PCM8_UNSIGNED;
format <= HPI_FORMAT_PCM24_SIGNED; format++) {
err = hpi_format_create(&hpi_format, asihpi->out_max_chans,
format, sample_rate, 128000, 0);
if (!err)
err = hpi_outstream_query_format(h_stream, &hpi_format);
if (!err && (hpi_to_alsa_formats[format] != -1))
formats |= pcm_format_to_bits(hpi_to_alsa_formats[format]);
}
return formats;
}
static int snd_card_asihpi_playback_open(struct snd_pcm_substream *substream)
{
struct snd_pcm_runtime *runtime = substream->runtime;
struct snd_card_asihpi_pcm *dpcm;
struct snd_card_asihpi *card = snd_pcm_substream_chip(substream);
struct snd_pcm_hardware snd_card_asihpi_playback;
int err;
dpcm = kzalloc(sizeof(*dpcm), GFP_KERNEL);
if (dpcm == NULL)
return -ENOMEM;
err = hpi_outstream_open(card->hpi->adapter->index,
substream->number, &dpcm->h_stream);
hpi_handle_error(err);
if (err)
kfree(dpcm);
if (err == HPI_ERROR_OBJ_ALREADY_OPEN)
return -EBUSY;
if (err)
return -EIO;
/*? also check ASI5000 samplerate source
If external, only support external rate.
If internal and other stream playing, can't switch
*/
timer_setup(&dpcm->timer, snd_card_asihpi_timer_function, 0);
dpcm->substream = substream;
runtime->private_data = dpcm;
runtime->private_free = snd_card_asihpi_runtime_free;
memset(&snd_card_asihpi_playback, 0, sizeof(snd_card_asihpi_playback));
if (!card->hpi->interrupt_mode) {
snd_card_asihpi_playback.buffer_bytes_max = BUFFER_BYTES_MAX;
snd_card_asihpi_playback.period_bytes_min = PERIOD_BYTES_MIN;
snd_card_asihpi_playback.period_bytes_max = BUFFER_BYTES_MAX / PERIODS_MIN;
snd_card_asihpi_playback.periods_min = PERIODS_MIN;
snd_card_asihpi_playback.periods_max = BUFFER_BYTES_MAX / PERIOD_BYTES_MIN;
} else {
size_t pbmin = card->update_interval_frames *
card->out_max_chans;
snd_card_asihpi_playback.buffer_bytes_max = BUFFER_BYTES_MAX;
snd_card_asihpi_playback.period_bytes_min = pbmin;
snd_card_asihpi_playback.period_bytes_max = BUFFER_BYTES_MAX / PERIODS_MIN;
snd_card_asihpi_playback.periods_min = PERIODS_MIN;
snd_card_asihpi_playback.periods_max = BUFFER_BYTES_MAX / pbmin;
}
/* snd_card_asihpi_playback.fifo_size = 0; */
snd_card_asihpi_playback.channels_max = card->out_max_chans;
snd_card_asihpi_playback.channels_min = card->out_min_chans;
snd_card_asihpi_playback.formats =
snd_card_asihpi_playback_formats(card, dpcm->h_stream);
snd_card_asihpi_pcm_samplerates(card, &snd_card_asihpi_playback);
snd_card_asihpi_playback.info = SNDRV_PCM_INFO_INTERLEAVED |
SNDRV_PCM_INFO_DOUBLE |
SNDRV_PCM_INFO_BATCH |
SNDRV_PCM_INFO_BLOCK_TRANSFER |
SNDRV_PCM_INFO_PAUSE |
SNDRV_PCM_INFO_MMAP |
SNDRV_PCM_INFO_MMAP_VALID;
if (card->support_grouping) {
snd_card_asihpi_playback.info |= SNDRV_PCM_INFO_SYNC_START;
snd_pcm_set_sync(substream);
}
/* struct is copied, so can create initializer dynamically */
runtime->hw = snd_card_asihpi_playback;
if (card->can_dma)
err = snd_pcm_hw_constraint_pow2(runtime, 0,
SNDRV_PCM_HW_PARAM_BUFFER_BYTES);
if (err < 0)
return err;
snd_pcm_hw_constraint_step(runtime, 0, SNDRV_PCM_HW_PARAM_PERIOD_SIZE,
card->update_interval_frames);
snd_pcm_hw_constraint_minmax(runtime, SNDRV_PCM_HW_PARAM_PERIOD_SIZE,
card->update_interval_frames, UINT_MAX);
snd_printdd("playback open\n");
return 0;
}
static int snd_card_asihpi_playback_close(struct snd_pcm_substream *substream)
{
struct snd_pcm_runtime *runtime = substream->runtime;
struct snd_card_asihpi_pcm *dpcm = runtime->private_data;
hpi_handle_error(hpi_outstream_close(dpcm->h_stream));
snd_printdd("playback close\n");
return 0;
}
static const struct snd_pcm_ops snd_card_asihpi_playback_mmap_ops = {
.open = snd_card_asihpi_playback_open,
.close = snd_card_asihpi_playback_close,
.ioctl = snd_card_asihpi_playback_ioctl,
.hw_params = snd_card_asihpi_pcm_hw_params,
.hw_free = snd_card_asihpi_hw_free,
.prepare = snd_card_asihpi_playback_prepare,
.trigger = snd_card_asihpi_trigger,
.pointer = snd_card_asihpi_playback_pointer,
};
/***************************** CAPTURE OPS ****************/
static snd_pcm_uframes_t
snd_card_asihpi_capture_pointer(struct snd_pcm_substream *substream)
{
struct snd_pcm_runtime *runtime = substream->runtime;
struct snd_card_asihpi_pcm *dpcm = runtime->private_data;
char name[16];
snd_pcm_debug_name(substream, name, sizeof(name));
snd_printddd("%s, pointer=%d\n", name, dpcm->pcm_buf_dma_ofs);
/* NOTE Unlike playback can't use actual samples_played
for the capture position, because those samples aren't yet in
the local buffer available for reading.
*/
return bytes_to_frames(runtime, dpcm->pcm_buf_dma_ofs % dpcm->buffer_bytes);
}
static int snd_card_asihpi_capture_ioctl(struct snd_pcm_substream *substream,
unsigned int cmd, void *arg)
{
return snd_pcm_lib_ioctl(substream, cmd, arg);
}
static int snd_card_asihpi_capture_prepare(struct snd_pcm_substream *substream)
{
struct snd_pcm_runtime *runtime = substream->runtime;
struct snd_card_asihpi_pcm *dpcm = runtime->private_data;
hpi_handle_error(hpi_instream_reset(dpcm->h_stream));
dpcm->pcm_buf_host_rw_ofs = 0;
dpcm->pcm_buf_dma_ofs = 0;
dpcm->pcm_buf_elapsed_dma_ofs = 0;
snd_printdd("Capture Prepare %d\n", substream->number);
return 0;
}
static u64 snd_card_asihpi_capture_formats(struct snd_card_asihpi *asihpi,
u32 h_stream)
{
struct hpi_format hpi_format;
u16 format;
u16 err;
u32 h_control;
u32 sample_rate = 48000;
u64 formats = 0;
/* on cards without SRC, must query at valid rate,
maybe set by external sync */
err = hpi_mixer_get_control(asihpi->h_mixer,
HPI_SOURCENODE_CLOCK_SOURCE, 0, 0, 0,
HPI_CONTROL_SAMPLECLOCK, &h_control);
if (!err)
err = hpi_sample_clock_get_sample_rate(h_control,
&sample_rate);
for (format = HPI_FORMAT_PCM8_UNSIGNED;
format <= HPI_FORMAT_PCM24_SIGNED; format++) {
err = hpi_format_create(&hpi_format, asihpi->in_max_chans,
format, sample_rate, 128000, 0);
if (!err)
err = hpi_instream_query_format(h_stream, &hpi_format);
if (!err && (hpi_to_alsa_formats[format] != -1))
formats |= pcm_format_to_bits(hpi_to_alsa_formats[format]);
}
return formats;
}
static int snd_card_asihpi_capture_open(struct snd_pcm_substream *substream)
{
struct snd_pcm_runtime *runtime = substream->runtime;
struct snd_card_asihpi *card = snd_pcm_substream_chip(substream);
struct snd_card_asihpi_pcm *dpcm;
struct snd_pcm_hardware snd_card_asihpi_capture;
int err;
dpcm = kzalloc(sizeof(*dpcm), GFP_KERNEL);
if (dpcm == NULL)
return -ENOMEM;
snd_printdd("capture open adapter %d stream %d\n",
card->hpi->adapter->index, substream->number);
err = hpi_handle_error(
hpi_instream_open(card->hpi->adapter->index,
substream->number, &dpcm->h_stream));
if (err)
kfree(dpcm);
if (err == HPI_ERROR_OBJ_ALREADY_OPEN)
return -EBUSY;
if (err)
return -EIO;
timer_setup(&dpcm->timer, snd_card_asihpi_timer_function, 0);
dpcm->substream = substream;
runtime->private_data = dpcm;
runtime->private_free = snd_card_asihpi_runtime_free;
memset(&snd_card_asihpi_capture, 0, sizeof(snd_card_asihpi_capture));
if (!card->hpi->interrupt_mode) {
snd_card_asihpi_capture.buffer_bytes_max = BUFFER_BYTES_MAX;
snd_card_asihpi_capture.period_bytes_min = PERIOD_BYTES_MIN;
snd_card_asihpi_capture.period_bytes_max = BUFFER_BYTES_MAX / PERIODS_MIN;
snd_card_asihpi_capture.periods_min = PERIODS_MIN;
snd_card_asihpi_capture.periods_max = BUFFER_BYTES_MAX / PERIOD_BYTES_MIN;
} else {
size_t pbmin = card->update_interval_frames *
card->out_max_chans;
snd_card_asihpi_capture.buffer_bytes_max = BUFFER_BYTES_MAX;
snd_card_asihpi_capture.period_bytes_min = pbmin;
snd_card_asihpi_capture.period_bytes_max = BUFFER_BYTES_MAX / PERIODS_MIN;
snd_card_asihpi_capture.periods_min = PERIODS_MIN;
snd_card_asihpi_capture.periods_max = BUFFER_BYTES_MAX / pbmin;
}
/* snd_card_asihpi_capture.fifo_size = 0; */
snd_card_asihpi_capture.channels_max = card->in_max_chans;
snd_card_asihpi_capture.channels_min = card->in_min_chans;
snd_card_asihpi_capture.formats =
snd_card_asihpi_capture_formats(card, dpcm->h_stream);
snd_card_asihpi_pcm_samplerates(card, &snd_card_asihpi_capture);
snd_card_asihpi_capture.info = SNDRV_PCM_INFO_INTERLEAVED |
SNDRV_PCM_INFO_MMAP |
SNDRV_PCM_INFO_MMAP_VALID;
if (card->support_grouping)
snd_card_asihpi_capture.info |= SNDRV_PCM_INFO_SYNC_START;
runtime->hw = snd_card_asihpi_capture;
if (card->can_dma)
err = snd_pcm_hw_constraint_pow2(runtime, 0,
SNDRV_PCM_HW_PARAM_BUFFER_BYTES);
if (err < 0)
return err;
snd_pcm_hw_constraint_step(runtime, 0, SNDRV_PCM_HW_PARAM_PERIOD_SIZE,
card->update_interval_frames);
snd_pcm_hw_constraint_minmax(runtime, SNDRV_PCM_HW_PARAM_PERIOD_SIZE,
card->update_interval_frames, UINT_MAX);
snd_pcm_set_sync(substream);
return 0;
}
static int snd_card_asihpi_capture_close(struct snd_pcm_substream *substream)
{
struct snd_card_asihpi_pcm *dpcm = substream->runtime->private_data;
hpi_handle_error(hpi_instream_close(dpcm->h_stream));
return 0;
}
static const struct snd_pcm_ops snd_card_asihpi_capture_mmap_ops = {
.open = snd_card_asihpi_capture_open,
.close = snd_card_asihpi_capture_close,
.ioctl = snd_card_asihpi_capture_ioctl,
.hw_params = snd_card_asihpi_pcm_hw_params,
.hw_free = snd_card_asihpi_hw_free,
.prepare = snd_card_asihpi_capture_prepare,
.trigger = snd_card_asihpi_trigger,
.pointer = snd_card_asihpi_capture_pointer,
};
static int snd_card_asihpi_pcm_new(struct snd_card_asihpi *asihpi, int device)
{
struct snd_pcm *pcm;
int err;
u16 num_instreams, num_outstreams, x16;
u32 x32;
err = hpi_adapter_get_info(asihpi->hpi->adapter->index,
&num_outstreams, &num_instreams,
&x16, &x32, &x16);
err = snd_pcm_new(asihpi->card, "Asihpi PCM", device,
num_outstreams, num_instreams, &pcm);
if (err < 0)
return err;
/* pointer to ops struct is stored, dont change ops afterwards! */
snd_pcm_set_ops(pcm, SNDRV_PCM_STREAM_PLAYBACK,
&snd_card_asihpi_playback_mmap_ops);
snd_pcm_set_ops(pcm, SNDRV_PCM_STREAM_CAPTURE,
&snd_card_asihpi_capture_mmap_ops);
pcm->private_data = asihpi;
pcm->info_flags = 0;
strcpy(pcm->name, "Asihpi PCM");
/*? do we want to emulate MMAP for non-BBM cards?
Jack doesn't work with ALSAs MMAP emulation - WHY NOT? */
snd_pcm_lib_preallocate_pages_for_all(pcm, SNDRV_DMA_TYPE_DEV,
snd_dma_pci_data(asihpi->pci),
64*1024, BUFFER_BYTES_MAX);
return 0;
}
/***************************** MIXER CONTROLS ****************/
struct hpi_control {
u32 h_control;
u16 control_type;
u16 src_node_type;
u16 src_node_index;
u16 dst_node_type;
u16 dst_node_index;
u16 band;
char name[SNDRV_CTL_ELEM_ID_NAME_MAXLEN]; /* copied to snd_ctl_elem_id.name[44]; */
};
static const char * const asihpi_tuner_band_names[] = {
"invalid",
"AM",
"FM mono",
"TV NTSC-M",
"FM stereo",
"AUX",
"TV PAL BG",
"TV PAL I",
"TV PAL DK",
"TV SECAM",
"TV DAB",
};
/* Number of strings must match the enumerations for HPI_TUNER_BAND in hpi.h */
compile_time_assert(
(ARRAY_SIZE(asihpi_tuner_band_names) ==
(HPI_TUNER_BAND_LAST+1)),
assert_tuner_band_names_size);
static const char * const asihpi_src_names[] = {
"no source",
"PCM",
"Line",
"Digital",
"Tuner",
"RF",
"Clock",
"Bitstream",
"Mic",
"Net",
"Analog",
"Adapter",
"RTP",
"Internal",
"AVB",
"BLU-Link"
};
/* Number of strings must match the enumerations for HPI_SOURCENODES in hpi.h */
compile_time_assert(
(ARRAY_SIZE(asihpi_src_names) ==
(HPI_SOURCENODE_LAST_INDEX-HPI_SOURCENODE_NONE+1)),
assert_src_names_size);
static const char * const asihpi_dst_names[] = {
"no destination",
"PCM",
"Line",
"Digital",
"RF",
"Speaker",
"Net",
"Analog",
"RTP",
"AVB",
"Internal",
"BLU-Link"
};
/* Number of strings must match the enumerations for HPI_DESTNODES in hpi.h */
compile_time_assert(
(ARRAY_SIZE(asihpi_dst_names) ==
(HPI_DESTNODE_LAST_INDEX-HPI_DESTNODE_NONE+1)),
assert_dst_names_size);
static inline int ctl_add(struct snd_card *card, struct snd_kcontrol_new *ctl,
struct snd_card_asihpi *asihpi)
{
int err;
err = snd_ctl_add(card, snd_ctl_new1(ctl, asihpi));
if (err < 0)
return err;
else if (mixer_dump)
dev_info(&asihpi->pci->dev, "added %s(%d)\n", ctl->name, ctl->index);
return 0;
}
/* Convert HPI control name and location into ALSA control name */
static void asihpi_ctl_init(struct snd_kcontrol_new *snd_control,
struct hpi_control *hpi_ctl,
char *name)
{
char *dir;
memset(snd_control, 0, sizeof(*snd_control));
snd_control->name = hpi_ctl->name;
snd_control->private_value = hpi_ctl->h_control;
snd_control->iface = SNDRV_CTL_ELEM_IFACE_MIXER;
snd_control->index = 0;
if (hpi_ctl->src_node_type + HPI_SOURCENODE_NONE == HPI_SOURCENODE_CLOCK_SOURCE)
dir = ""; /* clock is neither capture nor playback */
else if (hpi_ctl->dst_node_type + HPI_DESTNODE_NONE == HPI_DESTNODE_ISTREAM)
dir = "Capture "; /* On or towards a PCM capture destination*/
else if ((hpi_ctl->src_node_type + HPI_SOURCENODE_NONE != HPI_SOURCENODE_OSTREAM) &&
(!hpi_ctl->dst_node_type))
dir = "Capture "; /* On a source node that is not PCM playback */
else if (hpi_ctl->src_node_type &&
(hpi_ctl->src_node_type + HPI_SOURCENODE_NONE != HPI_SOURCENODE_OSTREAM) &&
(hpi_ctl->dst_node_type))
dir = "Monitor Playback "; /* Between an input and an output */
else
dir = "Playback "; /* PCM Playback source, or output node */
if (hpi_ctl->src_node_type && hpi_ctl->dst_node_type)
sprintf(hpi_ctl->name, "%s %d %s %d %s%s",
asihpi_src_names[hpi_ctl->src_node_type],
hpi_ctl->src_node_index,
asihpi_dst_names[hpi_ctl->dst_node_type],
hpi_ctl->dst_node_index,
dir, name);
else if (hpi_ctl->dst_node_type) {
sprintf(hpi_ctl->name, "%s %d %s%s",
asihpi_dst_names[hpi_ctl->dst_node_type],
hpi_ctl->dst_node_index,
dir, name);
} else {
sprintf(hpi_ctl->name, "%s %d %s%s",
asihpi_src_names[hpi_ctl->src_node_type],
hpi_ctl->src_node_index,
dir, name);
}
/* printk(KERN_INFO "Adding %s %d to %d ", hpi_ctl->name,
hpi_ctl->wSrcNodeType, hpi_ctl->wDstNodeType); */
}
/*------------------------------------------------------------
Volume controls
------------------------------------------------------------*/
#define VOL_STEP_mB 1
static int snd_asihpi_volume_info(struct snd_kcontrol *kcontrol,
struct snd_ctl_elem_info *uinfo)
{
u32 h_control = kcontrol->private_value;
u32 count;
u16 err;
/* native gains are in millibels */
short min_gain_mB;
short max_gain_mB;
short step_gain_mB;
err = hpi_volume_query_range(h_control,
&min_gain_mB, &max_gain_mB, &step_gain_mB);
if (err) {
max_gain_mB = 0;
min_gain_mB = -10000;
step_gain_mB = VOL_STEP_mB;
}
err = hpi_meter_query_channels(h_control, &count);
if (err)
count = HPI_MAX_CHANNELS;
uinfo->type = SNDRV_CTL_ELEM_TYPE_INTEGER;
uinfo->count = count;
uinfo->value.integer.min = min_gain_mB / VOL_STEP_mB;
uinfo->value.integer.max = max_gain_mB / VOL_STEP_mB;
uinfo->value.integer.step = step_gain_mB / VOL_STEP_mB;
return 0;
}
static int snd_asihpi_volume_get(struct snd_kcontrol *kcontrol,
struct snd_ctl_elem_value *ucontrol)
{
u32 h_control = kcontrol->private_value;
short an_gain_mB[HPI_MAX_CHANNELS];
hpi_handle_error(hpi_volume_get_gain(h_control, an_gain_mB));
ucontrol->value.integer.value[0] = an_gain_mB[0] / VOL_STEP_mB;
ucontrol->value.integer.value[1] = an_gain_mB[1] / VOL_STEP_mB;
return 0;
}
static int snd_asihpi_volume_put(struct snd_kcontrol *kcontrol,
struct snd_ctl_elem_value *ucontrol)
{
int change;
u32 h_control = kcontrol->private_value;
short an_gain_mB[HPI_MAX_CHANNELS];
an_gain_mB[0] =
(ucontrol->value.integer.value[0]) * VOL_STEP_mB;
an_gain_mB[1] =
(ucontrol->value.integer.value[1]) * VOL_STEP_mB;
/* change = asihpi->mixer_volume[addr][0] != left ||
asihpi->mixer_volume[addr][1] != right;
*/
change = 1;
hpi_handle_error(hpi_volume_set_gain(h_control, an_gain_mB));
return change;
}
static const DECLARE_TLV_DB_SCALE(db_scale_100, -10000, VOL_STEP_mB, 0);
#define snd_asihpi_volume_mute_info snd_ctl_boolean_mono_info
static int snd_asihpi_volume_mute_get(struct snd_kcontrol *kcontrol,
struct snd_ctl_elem_value *ucontrol)
{
u32 h_control = kcontrol->private_value;
u32 mute;
hpi_handle_error(hpi_volume_get_mute(h_control, &mute));
ucontrol->value.integer.value[0] = mute ? 0 : 1;
return 0;
}
static int snd_asihpi_volume_mute_put(struct snd_kcontrol *kcontrol,
struct snd_ctl_elem_value *ucontrol)
{
u32 h_control = kcontrol->private_value;
int change = 1;
/* HPI currently only supports all or none muting of multichannel volume
ALSA Switch element has opposite sense to HPI mute: on==unmuted, off=muted
*/
int mute = ucontrol->value.integer.value[0] ? 0 : HPI_BITMASK_ALL_CHANNELS;
hpi_handle_error(hpi_volume_set_mute(h_control, mute));
return change;
}
static int snd_asihpi_volume_add(struct snd_card_asihpi *asihpi,
struct hpi_control *hpi_ctl)
{
struct snd_card *card = asihpi->card;
struct snd_kcontrol_new snd_control;
int err;
u32 mute;
asihpi_ctl_init(&snd_control, hpi_ctl, "Volume");
snd_control.access = SNDRV_CTL_ELEM_ACCESS_READWRITE |
SNDRV_CTL_ELEM_ACCESS_TLV_READ;
snd_control.info = snd_asihpi_volume_info;
snd_control.get = snd_asihpi_volume_get;
snd_control.put = snd_asihpi_volume_put;
snd_control.tlv.p = db_scale_100;
err = ctl_add(card, &snd_control, asihpi);
if (err)
return err;
if (hpi_volume_get_mute(hpi_ctl->h_control, &mute) == 0) {
asihpi_ctl_init(&snd_control, hpi_ctl, "Switch");
snd_control.access = SNDRV_CTL_ELEM_ACCESS_READWRITE;
snd_control.info = snd_asihpi_volume_mute_info;
snd_control.get = snd_asihpi_volume_mute_get;
snd_control.put = snd_asihpi_volume_mute_put;
err = ctl_add(card, &snd_control, asihpi);
}
return err;
}
/*------------------------------------------------------------
Level controls
------------------------------------------------------------*/
static int snd_asihpi_level_info(struct snd_kcontrol *kcontrol,
struct snd_ctl_elem_info *uinfo)
{
u32 h_control = kcontrol->private_value;
u16 err;
short min_gain_mB;
short max_gain_mB;
short step_gain_mB;
err =
hpi_level_query_range(h_control, &min_gain_mB,
&max_gain_mB, &step_gain_mB);
if (err) {
max_gain_mB = 2400;
min_gain_mB = -1000;
step_gain_mB = 100;
}
uinfo->type = SNDRV_CTL_ELEM_TYPE_INTEGER;
uinfo->count = 2;
uinfo->value.integer.min = min_gain_mB / HPI_UNITS_PER_dB;
uinfo->value.integer.max = max_gain_mB / HPI_UNITS_PER_dB;
uinfo->value.integer.step = step_gain_mB / HPI_UNITS_PER_dB;
return 0;
}
static int snd_asihpi_level_get(struct snd_kcontrol *kcontrol,
struct snd_ctl_elem_value *ucontrol)
{
u32 h_control = kcontrol->private_value;
short an_gain_mB[HPI_MAX_CHANNELS];
hpi_handle_error(hpi_level_get_gain(h_control, an_gain_mB));
ucontrol->value.integer.value[0] =
an_gain_mB[0] / HPI_UNITS_PER_dB;
ucontrol->value.integer.value[1] =
an_gain_mB[1] / HPI_UNITS_PER_dB;
return 0;
}
static int snd_asihpi_level_put(struct snd_kcontrol *kcontrol,
struct snd_ctl_elem_value *ucontrol)
{
int change;
u32 h_control = kcontrol->private_value;
short an_gain_mB[HPI_MAX_CHANNELS];
an_gain_mB[0] =
(ucontrol->value.integer.value[0]) * HPI_UNITS_PER_dB;
an_gain_mB[1] =
(ucontrol->value.integer.value[1]) * HPI_UNITS_PER_dB;
/* change = asihpi->mixer_level[addr][0] != left ||
asihpi->mixer_level[addr][1] != right;
*/
change = 1;
hpi_handle_error(hpi_level_set_gain(h_control, an_gain_mB));
return change;
}
static const DECLARE_TLV_DB_SCALE(db_scale_level, -1000, 100, 0);
static int snd_asihpi_level_add(struct snd_card_asihpi *asihpi,
struct hpi_control *hpi_ctl)
{
struct snd_card *card = asihpi->card;
struct snd_kcontrol_new snd_control;
/* can't use 'volume' cos some nodes have volume as well */
asihpi_ctl_init(&snd_control, hpi_ctl, "Level");
snd_control.access = SNDRV_CTL_ELEM_ACCESS_READWRITE |
SNDRV_CTL_ELEM_ACCESS_TLV_READ;
snd_control.info = snd_asihpi_level_info;
snd_control.get = snd_asihpi_level_get;
snd_control.put = snd_asihpi_level_put;
snd_control.tlv.p = db_scale_level;
return ctl_add(card, &snd_control, asihpi);
}
/*------------------------------------------------------------
AESEBU controls
------------------------------------------------------------*/
/* AESEBU format */
static const char * const asihpi_aesebu_format_names[] = {
"N/A", "S/PDIF", "AES/EBU" };
static int snd_asihpi_aesebu_format_info(struct snd_kcontrol *kcontrol,
struct snd_ctl_elem_info *uinfo)
{
return snd_ctl_enum_info(uinfo, 1, 3, asihpi_aesebu_format_names);
}
static int snd_asihpi_aesebu_format_get(struct snd_kcontrol *kcontrol,
struct snd_ctl_elem_value *ucontrol,
u16 (*func)(u32, u16 *))
{
u32 h_control = kcontrol->private_value;
u16 source, err;
err = func(h_control, &source);
/* default to N/A */
ucontrol->value.enumerated.item[0] = 0;
/* return success but set the control to N/A */
if (err)
return 0;
if (source == HPI_AESEBU_FORMAT_SPDIF)
ucontrol->value.enumerated.item[0] = 1;
if (source == HPI_AESEBU_FORMAT_AESEBU)
ucontrol->value.enumerated.item[0] = 2;
return 0;
}
static int snd_asihpi_aesebu_format_put(struct snd_kcontrol *kcontrol,
struct snd_ctl_elem_value *ucontrol,
u16 (*func)(u32, u16))
{
u32 h_control = kcontrol->private_value;
/* default to S/PDIF */
u16 source = HPI_AESEBU_FORMAT_SPDIF;
if (ucontrol->value.enumerated.item[0] == 1)
source = HPI_AESEBU_FORMAT_SPDIF;
if (ucontrol->value.enumerated.item[0] == 2)
source = HPI_AESEBU_FORMAT_AESEBU;
if (func(h_control, source) != 0)
return -EINVAL;
return 1;
}
static int snd_asihpi_aesebu_rx_format_get(struct snd_kcontrol *kcontrol,
struct snd_ctl_elem_value *ucontrol) {
return snd_asihpi_aesebu_format_get(kcontrol, ucontrol,
hpi_aesebu_receiver_get_format);
}
static int snd_asihpi_aesebu_rx_format_put(struct snd_kcontrol *kcontrol,
struct snd_ctl_elem_value *ucontrol) {
return snd_asihpi_aesebu_format_put(kcontrol, ucontrol,
hpi_aesebu_receiver_set_format);
}
static int snd_asihpi_aesebu_rxstatus_info(struct snd_kcontrol *kcontrol,
struct snd_ctl_elem_info *uinfo)
{
uinfo->type = SNDRV_CTL_ELEM_TYPE_INTEGER;
uinfo->count = 1;
uinfo->value.integer.min = 0;
uinfo->value.integer.max = 0X1F;
uinfo->value.integer.step = 1;
return 0;
}
static int snd_asihpi_aesebu_rxstatus_get(struct snd_kcontrol *kcontrol,
struct snd_ctl_elem_value *ucontrol) {
u32 h_control = kcontrol->private_value;
u16 status;
hpi_handle_error(hpi_aesebu_receiver_get_error_status(
h_control, &status));
ucontrol->value.integer.value[0] = status;
return 0;
}
static int snd_asihpi_aesebu_rx_add(struct snd_card_asihpi *asihpi,
struct hpi_control *hpi_ctl)
{
struct snd_card *card = asihpi->card;
struct snd_kcontrol_new snd_control;
asihpi_ctl_init(&snd_control, hpi_ctl, "Format");
snd_control.access = SNDRV_CTL_ELEM_ACCESS_READWRITE;
snd_control.info = snd_asihpi_aesebu_format_info;
snd_control.get = snd_asihpi_aesebu_rx_format_get;
snd_control.put = snd_asihpi_aesebu_rx_format_put;
if (ctl_add(card, &snd_control, asihpi) < 0)
return -EINVAL;
asihpi_ctl_init(&snd_control, hpi_ctl, "Status");
snd_control.access =
SNDRV_CTL_ELEM_ACCESS_VOLATILE | SNDRV_CTL_ELEM_ACCESS_READ;
snd_control.info = snd_asihpi_aesebu_rxstatus_info;
snd_control.get = snd_asihpi_aesebu_rxstatus_get;
return ctl_add(card, &snd_control, asihpi);
}
static int snd_asihpi_aesebu_tx_format_get(struct snd_kcontrol *kcontrol,
struct snd_ctl_elem_value *ucontrol) {
return snd_asihpi_aesebu_format_get(kcontrol, ucontrol,
hpi_aesebu_transmitter_get_format);
}
static int snd_asihpi_aesebu_tx_format_put(struct snd_kcontrol *kcontrol,
struct snd_ctl_elem_value *ucontrol) {
return snd_asihpi_aesebu_format_put(kcontrol, ucontrol,
hpi_aesebu_transmitter_set_format);
}
static int snd_asihpi_aesebu_tx_add(struct snd_card_asihpi *asihpi,
struct hpi_control *hpi_ctl)
{
struct snd_card *card = asihpi->card;
struct snd_kcontrol_new snd_control;
asihpi_ctl_init(&snd_control, hpi_ctl, "Format");
snd_control.access = SNDRV_CTL_ELEM_ACCESS_READWRITE;
snd_control.info = snd_asihpi_aesebu_format_info;
snd_control.get = snd_asihpi_aesebu_tx_format_get;
snd_control.put = snd_asihpi_aesebu_tx_format_put;
return ctl_add(card, &snd_control, asihpi);
}
/*------------------------------------------------------------
Tuner controls
------------------------------------------------------------*/
/* Gain */
static int snd_asihpi_tuner_gain_info(struct snd_kcontrol *kcontrol,
struct snd_ctl_elem_info *uinfo)
{
u32 h_control = kcontrol->private_value;
u16 err;
short idx;
u16 gain_range[3];
for (idx = 0; idx < 3; idx++) {
err = hpi_tuner_query_gain(h_control,
idx, &gain_range[idx]);
if (err != 0)
return err;
}
uinfo->type = SNDRV_CTL_ELEM_TYPE_INTEGER;
uinfo->count = 1;
uinfo->value.integer.min = ((int)gain_range[0]) / HPI_UNITS_PER_dB;
uinfo->value.integer.max = ((int)gain_range[1]) / HPI_UNITS_PER_dB;
uinfo->value.integer.step = ((int) gain_range[2]) / HPI_UNITS_PER_dB;
return 0;
}
static int snd_asihpi_tuner_gain_get(struct snd_kcontrol *kcontrol,
struct snd_ctl_elem_value *ucontrol)
{
/*
struct snd_card_asihpi *asihpi = snd_kcontrol_chip(kcontrol);
*/
u32 h_control = kcontrol->private_value;
short gain;
hpi_handle_error(hpi_tuner_get_gain(h_control, &gain));
ucontrol->value.integer.value[0] = gain / HPI_UNITS_PER_dB;
return 0;
}
static int snd_asihpi_tuner_gain_put(struct snd_kcontrol *kcontrol,
struct snd_ctl_elem_value *ucontrol)
{
/*
struct snd_card_asihpi *asihpi = snd_kcontrol_chip(kcontrol);
*/
u32 h_control = kcontrol->private_value;
short gain;
gain = (ucontrol->value.integer.value[0]) * HPI_UNITS_PER_dB;
hpi_handle_error(hpi_tuner_set_gain(h_control, gain));
return 1;
}
/* Band */
static int asihpi_tuner_band_query(struct snd_kcontrol *kcontrol,
u16 *band_list, u32 len) {
u32 h_control = kcontrol->private_value;
u16 err = 0;
u32 i;
for (i = 0; i < len; i++) {
err = hpi_tuner_query_band(
h_control, i, &band_list[i]);
if (err != 0)
break;
}
if (err && (err != HPI_ERROR_INVALID_OBJ_INDEX))
return -EIO;
return i;
}
static int snd_asihpi_tuner_band_info(struct snd_kcontrol *kcontrol,
struct snd_ctl_elem_info *uinfo)
{
u16 tuner_bands[HPI_TUNER_BAND_LAST];
int num_bands = 0;
num_bands = asihpi_tuner_band_query(kcontrol, tuner_bands,
HPI_TUNER_BAND_LAST);
if (num_bands < 0)
return num_bands;
return snd_ctl_enum_info(uinfo, 1, num_bands, asihpi_tuner_band_names);
}
static int snd_asihpi_tuner_band_get(struct snd_kcontrol *kcontrol,
struct snd_ctl_elem_value *ucontrol)
{
u32 h_control = kcontrol->private_value;
/*
struct snd_card_asihpi *asihpi = snd_kcontrol_chip(kcontrol);
*/
u16 band, idx;
u16 tuner_bands[HPI_TUNER_BAND_LAST];
u32 num_bands = 0;
num_bands = asihpi_tuner_band_query(kcontrol, tuner_bands,
HPI_TUNER_BAND_LAST);
hpi_handle_error(hpi_tuner_get_band(h_control, &band));
ucontrol->value.enumerated.item[0] = -1;
for (idx = 0; idx < HPI_TUNER_BAND_LAST; idx++)
if (tuner_bands[idx] == band) {
ucontrol->value.enumerated.item[0] = idx;
break;
}
return 0;
}
static int snd_asihpi_tuner_band_put(struct snd_kcontrol *kcontrol,
struct snd_ctl_elem_value *ucontrol)
{
/*
struct snd_card_asihpi *asihpi = snd_kcontrol_chip(kcontrol);
*/
u32 h_control = kcontrol->private_value;
unsigned int idx;
u16 band;
u16 tuner_bands[HPI_TUNER_BAND_LAST];
u32 num_bands = 0;
num_bands = asihpi_tuner_band_query(kcontrol, tuner_bands,
HPI_TUNER_BAND_LAST);
idx = ucontrol->value.enumerated.item[0];
if (idx >= ARRAY_SIZE(tuner_bands))
idx = ARRAY_SIZE(tuner_bands) - 1;
band = tuner_bands[idx];
hpi_handle_error(hpi_tuner_set_band(h_control, band));
return 1;
}
/* Freq */
static int snd_asihpi_tuner_freq_info(struct snd_kcontrol *kcontrol,
struct snd_ctl_elem_info *uinfo)
{
u32 h_control = kcontrol->private_value;
u16 err;
u16 tuner_bands[HPI_TUNER_BAND_LAST];
u16 num_bands = 0, band_iter, idx;
u32 freq_range[3], temp_freq_range[3];
num_bands = asihpi_tuner_band_query(kcontrol, tuner_bands,
HPI_TUNER_BAND_LAST);
freq_range[0] = INT_MAX;
freq_range[1] = 0;
freq_range[2] = INT_MAX;
for (band_iter = 0; band_iter < num_bands; band_iter++) {
for (idx = 0; idx < 3; idx++) {
err = hpi_tuner_query_frequency(h_control,
idx, tuner_bands[band_iter],
&temp_freq_range[idx]);
if (err != 0)
return err;
}
/* skip band with bogus stepping */
if (temp_freq_range[2] <= 0)
continue;
if (temp_freq_range[0] < freq_range[0])
freq_range[0] = temp_freq_range[0];
if (temp_freq_range[1] > freq_range[1])
freq_range[1] = temp_freq_range[1];
if (temp_freq_range[2] < freq_range[2])
freq_range[2] = temp_freq_range[2];
}
uinfo->type = SNDRV_CTL_ELEM_TYPE_INTEGER;
uinfo->count = 1;
uinfo->value.integer.min = ((int)freq_range[0]);
uinfo->value.integer.max = ((int)freq_range[1]);
uinfo->value.integer.step = ((int)freq_range[2]);
return 0;
}
static int snd_asihpi_tuner_freq_get(struct snd_kcontrol *kcontrol,
struct snd_ctl_elem_value *ucontrol)
{
u32 h_control = kcontrol->private_value;
u32 freq;
hpi_handle_error(hpi_tuner_get_frequency(h_control, &freq));
ucontrol->value.integer.value[0] = freq;
return 0;
}
static int snd_asihpi_tuner_freq_put(struct snd_kcontrol *kcontrol,
struct snd_ctl_elem_value *ucontrol)
{
u32 h_control = kcontrol->private_value;
u32 freq;
freq = ucontrol->value.integer.value[0];
hpi_handle_error(hpi_tuner_set_frequency(h_control, freq));
return 1;
}
/* Tuner control group initializer */
static int snd_asihpi_tuner_add(struct snd_card_asihpi *asihpi,
struct hpi_control *hpi_ctl)
{
struct snd_card *card = asihpi->card;
struct snd_kcontrol_new snd_control;
snd_control.private_value = hpi_ctl->h_control;
snd_control.access = SNDRV_CTL_ELEM_ACCESS_READWRITE;
if (!hpi_tuner_get_gain(hpi_ctl->h_control, NULL)) {
asihpi_ctl_init(&snd_control, hpi_ctl, "Gain");
snd_control.info = snd_asihpi_tuner_gain_info;
snd_control.get = snd_asihpi_tuner_gain_get;
snd_control.put = snd_asihpi_tuner_gain_put;
if (ctl_add(card, &snd_control, asihpi) < 0)
return -EINVAL;
}
asihpi_ctl_init(&snd_control, hpi_ctl, "Band");
snd_control.info = snd_asihpi_tuner_band_info;
snd_control.get = snd_asihpi_tuner_band_get;
snd_control.put = snd_asihpi_tuner_band_put;
if (ctl_add(card, &snd_control, asihpi) < 0)
return -EINVAL;
asihpi_ctl_init(&snd_control, hpi_ctl, "Freq");
snd_control.info = snd_asihpi_tuner_freq_info;
snd_control.get = snd_asihpi_tuner_freq_get;
snd_control.put = snd_asihpi_tuner_freq_put;
return ctl_add(card, &snd_control, asihpi);
}
/*------------------------------------------------------------
Meter controls
------------------------------------------------------------*/
static int snd_asihpi_meter_info(struct snd_kcontrol *kcontrol,
struct snd_ctl_elem_info *uinfo)
{
u32 h_control = kcontrol->private_value;
u32 count;
u16 err;
err = hpi_meter_query_channels(h_control, &count);
if (err)
count = HPI_MAX_CHANNELS;
uinfo->type = SNDRV_CTL_ELEM_TYPE_INTEGER;
uinfo->count = count;
uinfo->value.integer.min = 0;
uinfo->value.integer.max = 0x7FFFFFFF;
return 0;
}
/* linear values for 10dB steps */
static int log2lin[] = {
0x7FFFFFFF, /* 0dB */
679093956,
214748365,
67909396,
21474837,
6790940,
2147484, /* -60dB */
679094,
214748, /* -80 */
67909,
21475, /* -100 */
6791,
2147,
679,
214,
68,
21,
7,
2
};
static int snd_asihpi_meter_get(struct snd_kcontrol *kcontrol,
struct snd_ctl_elem_value *ucontrol)
{
u32 h_control = kcontrol->private_value;
short an_gain_mB[HPI_MAX_CHANNELS], i;
u16 err;
err = hpi_meter_get_peak(h_control, an_gain_mB);
for (i = 0; i < HPI_MAX_CHANNELS; i++) {
if (err) {
ucontrol->value.integer.value[i] = 0;
} else if (an_gain_mB[i] >= 0) {
ucontrol->value.integer.value[i] =
an_gain_mB[i] << 16;
} else {
/* -ve is log value in millibels < -60dB,
* convert to (roughly!) linear,
*/
ucontrol->value.integer.value[i] =
log2lin[an_gain_mB[i] / -1000];
}
}
return 0;
}
static int snd_asihpi_meter_add(struct snd_card_asihpi *asihpi,
struct hpi_control *hpi_ctl, int subidx)
{
struct snd_card *card = asihpi->card;
struct snd_kcontrol_new snd_control;
asihpi_ctl_init(&snd_control, hpi_ctl, "Meter");
snd_control.access =
SNDRV_CTL_ELEM_ACCESS_VOLATILE | SNDRV_CTL_ELEM_ACCESS_READ;
snd_control.info = snd_asihpi_meter_info;
snd_control.get = snd_asihpi_meter_get;
snd_control.index = subidx;
return ctl_add(card, &snd_control, asihpi);
}
/*------------------------------------------------------------
Multiplexer controls
------------------------------------------------------------*/
static int snd_card_asihpi_mux_count_sources(struct snd_kcontrol *snd_control)
{
u32 h_control = snd_control->private_value;
struct hpi_control hpi_ctl;
int s, err;
for (s = 0; s < 32; s++) {
err = hpi_multiplexer_query_source(h_control, s,
&hpi_ctl.
src_node_type,
&hpi_ctl.
src_node_index);
if (err)
break;
}
return s;
}
static int snd_asihpi_mux_info(struct snd_kcontrol *kcontrol,
struct snd_ctl_elem_info *uinfo)
{
int err;
u16 src_node_type, src_node_index;
u32 h_control = kcontrol->private_value;
uinfo->type = SNDRV_CTL_ELEM_TYPE_ENUMERATED;
uinfo->count = 1;
uinfo->value.enumerated.items =
snd_card_asihpi_mux_count_sources(kcontrol);
if (uinfo->value.enumerated.item >= uinfo->value.enumerated.items)
uinfo->value.enumerated.item =
uinfo->value.enumerated.items - 1;
err =
hpi_multiplexer_query_source(h_control,
uinfo->value.enumerated.item,
&src_node_type, &src_node_index);
sprintf(uinfo->value.enumerated.name, "%s %d",
asihpi_src_names[src_node_type - HPI_SOURCENODE_NONE],
src_node_index);
return 0;
}
static int snd_asihpi_mux_get(struct snd_kcontrol *kcontrol,
struct snd_ctl_elem_value *ucontrol)
{
u32 h_control = kcontrol->private_value;
u16 source_type, source_index;
u16 src_node_type, src_node_index;
int s;
hpi_handle_error(hpi_multiplexer_get_source(h_control,
&source_type, &source_index));
/* Should cache this search result! */
for (s = 0; s < 256; s++) {
if (hpi_multiplexer_query_source(h_control, s,
&src_node_type, &src_node_index))
break;
if ((source_type == src_node_type)
&& (source_index == src_node_index)) {
ucontrol->value.enumerated.item[0] = s;
return 0;
}
}
snd_printd(KERN_WARNING
"Control %x failed to match mux source %hu %hu\n",
h_control, source_type, source_index);
ucontrol->value.enumerated.item[0] = 0;
return 0;
}
static int snd_asihpi_mux_put(struct snd_kcontrol *kcontrol,
struct snd_ctl_elem_value *ucontrol)
{
int change;
u32 h_control = kcontrol->private_value;
u16 source_type, source_index;
u16 e;
change = 1;
e = hpi_multiplexer_query_source(h_control,
ucontrol->value.enumerated.item[0],
&source_type, &source_index);
if (!e)
hpi_handle_error(
hpi_multiplexer_set_source(h_control,
source_type, source_index));
return change;
}
static int snd_asihpi_mux_add(struct snd_card_asihpi *asihpi,
struct hpi_control *hpi_ctl)
{
struct snd_card *card = asihpi->card;
struct snd_kcontrol_new snd_control;
asihpi_ctl_init(&snd_control, hpi_ctl, "Route");
snd_control.access = SNDRV_CTL_ELEM_ACCESS_READWRITE;
snd_control.info = snd_asihpi_mux_info;
snd_control.get = snd_asihpi_mux_get;
snd_control.put = snd_asihpi_mux_put;
return ctl_add(card, &snd_control, asihpi);
}
/*------------------------------------------------------------
Channel mode controls
------------------------------------------------------------*/
static int snd_asihpi_cmode_info(struct snd_kcontrol *kcontrol,
struct snd_ctl_elem_info *uinfo)
{
static const char * const mode_names[HPI_CHANNEL_MODE_LAST + 1] = {
"invalid",
"Normal", "Swap",
"From Left", "From Right",
"To Left", "To Right"
};
u32 h_control = kcontrol->private_value;
u16 mode;
int i;
const char *mapped_names[6];
int valid_modes = 0;
/* HPI channel mode values can be from 1 to 6
Some adapters only support a contiguous subset
*/
for (i = 0; i < HPI_CHANNEL_MODE_LAST; i++)
if (!hpi_channel_mode_query_mode(
h_control, i, &mode)) {
mapped_names[valid_modes] = mode_names[mode];
valid_modes++;
}
if (!valid_modes)
return -EINVAL;
return snd_ctl_enum_info(uinfo, 1, valid_modes, mapped_names);
}
static int snd_asihpi_cmode_get(struct snd_kcontrol *kcontrol,
struct snd_ctl_elem_value *ucontrol)
{
u32 h_control = kcontrol->private_value;
u16 mode;
if (hpi_channel_mode_get(h_control, &mode))
mode = 1;
ucontrol->value.enumerated.item[0] = mode - 1;
return 0;
}
static int snd_asihpi_cmode_put(struct snd_kcontrol *kcontrol,
struct snd_ctl_elem_value *ucontrol)
{
int change;
u32 h_control = kcontrol->private_value;
change = 1;
hpi_handle_error(hpi_channel_mode_set(h_control,
ucontrol->value.enumerated.item[0] + 1));
return change;
}
static int snd_asihpi_cmode_add(struct snd_card_asihpi *asihpi,
struct hpi_control *hpi_ctl)
{
struct snd_card *card = asihpi->card;
struct snd_kcontrol_new snd_control;
asihpi_ctl_init(&snd_control, hpi_ctl, "Mode");
snd_control.access = SNDRV_CTL_ELEM_ACCESS_READWRITE;
snd_control.info = snd_asihpi_cmode_info;
snd_control.get = snd_asihpi_cmode_get;
snd_control.put = snd_asihpi_cmode_put;
return ctl_add(card, &snd_control, asihpi);
}
/*------------------------------------------------------------
Sampleclock source controls
------------------------------------------------------------*/
static const char * const sampleclock_sources[] = {
"N/A", "Local PLL", "Digital Sync", "Word External", "Word Header",
"SMPTE", "Digital1", "Auto", "Network", "Invalid",
"Prev Module", "BLU-Link",
"Digital2", "Digital3", "Digital4", "Digital5",
"Digital6", "Digital7", "Digital8"};
/* Number of strings must match expected enumerated values */
compile_time_assert(
(ARRAY_SIZE(sampleclock_sources) == MAX_CLOCKSOURCES),
assert_sampleclock_sources_size);
static int snd_asihpi_clksrc_info(struct snd_kcontrol *kcontrol,
struct snd_ctl_elem_info *uinfo)
{
struct snd_card_asihpi *asihpi =
(struct snd_card_asihpi *)(kcontrol->private_data);
struct clk_cache *clkcache = &asihpi->cc;
uinfo->type = SNDRV_CTL_ELEM_TYPE_ENUMERATED;
uinfo->count = 1;
uinfo->value.enumerated.items = clkcache->count;
if (uinfo->value.enumerated.item >= uinfo->value.enumerated.items)
uinfo->value.enumerated.item =
uinfo->value.enumerated.items - 1;
strcpy(uinfo->value.enumerated.name,
clkcache->s[uinfo->value.enumerated.item].name);
return 0;
}
static int snd_asihpi_clksrc_get(struct snd_kcontrol *kcontrol,
struct snd_ctl_elem_value *ucontrol)
{
struct snd_card_asihpi *asihpi =
(struct snd_card_asihpi *)(kcontrol->private_data);
struct clk_cache *clkcache = &asihpi->cc;
u32 h_control = kcontrol->private_value;
u16 source, srcindex = 0;
int i;
ucontrol->value.enumerated.item[0] = 0;
if (hpi_sample_clock_get_source(h_control, &source))
source = 0;
if (source == HPI_SAMPLECLOCK_SOURCE_AESEBU_INPUT)
if (hpi_sample_clock_get_source_index(h_control, &srcindex))
srcindex = 0;
for (i = 0; i < clkcache->count; i++)
if ((clkcache->s[i].source == source) &&
(clkcache->s[i].index == srcindex))
break;
ucontrol->value.enumerated.item[0] = i;
return 0;
}
static int snd_asihpi_clksrc_put(struct snd_kcontrol *kcontrol,
struct snd_ctl_elem_value *ucontrol)
{
struct snd_card_asihpi *asihpi =
(struct snd_card_asihpi *)(kcontrol->private_data);
struct clk_cache *clkcache = &asihpi->cc;
unsigned int item;
int change;
u32 h_control = kcontrol->private_value;
change = 1;
item = ucontrol->value.enumerated.item[0];
if (item >= clkcache->count)
item = clkcache->count-1;
hpi_handle_error(hpi_sample_clock_set_source(
h_control, clkcache->s[item].source));
if (clkcache->s[item].source == HPI_SAMPLECLOCK_SOURCE_AESEBU_INPUT)
hpi_handle_error(hpi_sample_clock_set_source_index(
h_control, clkcache->s[item].index));
return change;
}
/*------------------------------------------------------------
Clkrate controls
------------------------------------------------------------*/
/* Need to change this to enumerated control with list of rates */
static int snd_asihpi_clklocal_info(struct snd_kcontrol *kcontrol,
struct snd_ctl_elem_info *uinfo)
{
uinfo->type = SNDRV_CTL_ELEM_TYPE_INTEGER;
uinfo->count = 1;
uinfo->value.integer.min = 8000;
uinfo->value.integer.max = 192000;
uinfo->value.integer.step = 100;
return 0;
}
static int snd_asihpi_clklocal_get(struct snd_kcontrol *kcontrol,
struct snd_ctl_elem_value *ucontrol)
{
u32 h_control = kcontrol->private_value;
u32 rate;
u16 e;
e = hpi_sample_clock_get_local_rate(h_control, &rate);
if (!e)
ucontrol->value.integer.value[0] = rate;
else
ucontrol->value.integer.value[0] = 0;
return 0;
}
static int snd_asihpi_clklocal_put(struct snd_kcontrol *kcontrol,
struct snd_ctl_elem_value *ucontrol)
{
int change;
u32 h_control = kcontrol->private_value;
/* change = asihpi->mixer_clkrate[addr][0] != left ||
asihpi->mixer_clkrate[addr][1] != right;
*/
change = 1;
hpi_handle_error(hpi_sample_clock_set_local_rate(h_control,
ucontrol->value.integer.value[0]));
return change;
}
static int snd_asihpi_clkrate_info(struct snd_kcontrol *kcontrol,
struct snd_ctl_elem_info *uinfo)
{
uinfo->type = SNDRV_CTL_ELEM_TYPE_INTEGER;
uinfo->count = 1;
uinfo->value.integer.min = 8000;
uinfo->value.integer.max = 192000;
uinfo->value.integer.step = 100;
return 0;
}
static int snd_asihpi_clkrate_get(struct snd_kcontrol *kcontrol,
struct snd_ctl_elem_value *ucontrol)
{
u32 h_control = kcontrol->private_value;
u32 rate;
u16 e;
e = hpi_sample_clock_get_sample_rate(h_control, &rate);
if (!e)
ucontrol->value.integer.value[0] = rate;
else
ucontrol->value.integer.value[0] = 0;
return 0;
}
static int snd_asihpi_sampleclock_add(struct snd_card_asihpi *asihpi,
struct hpi_control *hpi_ctl)
{
struct snd_card *card;
struct snd_kcontrol_new snd_control;
struct clk_cache *clkcache;
u32 hSC = hpi_ctl->h_control;
int has_aes_in = 0;
int i, j;
u16 source;
if (snd_BUG_ON(!asihpi))
return -EINVAL;
card = asihpi->card;
clkcache = &asihpi->cc;
snd_control.private_value = hpi_ctl->h_control;
clkcache->has_local = 0;
for (i = 0; i <= HPI_SAMPLECLOCK_SOURCE_LAST; i++) {
if (hpi_sample_clock_query_source(hSC,
i, &source))
break;
clkcache->s[i].source = source;
clkcache->s[i].index = 0;
clkcache->s[i].name = sampleclock_sources[source];
if (source == HPI_SAMPLECLOCK_SOURCE_AESEBU_INPUT)
has_aes_in = 1;
if (source == HPI_SAMPLECLOCK_SOURCE_LOCAL)
clkcache->has_local = 1;
}
if (has_aes_in)
/* already will have picked up index 0 above */
for (j = 1; j < 8; j++) {
if (hpi_sample_clock_query_source_index(hSC,
j, HPI_SAMPLECLOCK_SOURCE_AESEBU_INPUT,
&source))
break;
clkcache->s[i].source =
HPI_SAMPLECLOCK_SOURCE_AESEBU_INPUT;
clkcache->s[i].index = j;
clkcache->s[i].name = sampleclock_sources[
j+HPI_SAMPLECLOCK_SOURCE_LAST];
i++;
}
clkcache->count = i;
asihpi_ctl_init(&snd_control, hpi_ctl, "Source");
snd_control.access = SNDRV_CTL_ELEM_ACCESS_READWRITE ;
snd_control.info = snd_asihpi_clksrc_info;
snd_control.get = snd_asihpi_clksrc_get;
snd_control.put = snd_asihpi_clksrc_put;
if (ctl_add(card, &snd_control, asihpi) < 0)
return -EINVAL;
if (clkcache->has_local) {
asihpi_ctl_init(&snd_control, hpi_ctl, "Localrate");
snd_control.access = SNDRV_CTL_ELEM_ACCESS_READWRITE ;
snd_control.info = snd_asihpi_clklocal_info;
snd_control.get = snd_asihpi_clklocal_get;
snd_control.put = snd_asihpi_clklocal_put;
if (ctl_add(card, &snd_control, asihpi) < 0)
return -EINVAL;
}
asihpi_ctl_init(&snd_control, hpi_ctl, "Rate");
snd_control.access =
SNDRV_CTL_ELEM_ACCESS_VOLATILE | SNDRV_CTL_ELEM_ACCESS_READ;
snd_control.info = snd_asihpi_clkrate_info;
snd_control.get = snd_asihpi_clkrate_get;
return ctl_add(card, &snd_control, asihpi);
}
/*------------------------------------------------------------
Mixer
------------------------------------------------------------*/
static int snd_card_asihpi_mixer_new(struct snd_card_asihpi *asihpi)
{
struct snd_card *card;
unsigned int idx = 0;
unsigned int subindex = 0;
int err;
struct hpi_control hpi_ctl, prev_ctl;
if (snd_BUG_ON(!asihpi))
return -EINVAL;
card = asihpi->card;
strcpy(card->mixername, "Asihpi Mixer");
err =
hpi_mixer_open(asihpi->hpi->adapter->index,
&asihpi->h_mixer);
hpi_handle_error(err);
if (err)
return -err;
memset(&prev_ctl, 0, sizeof(prev_ctl));
prev_ctl.control_type = -1;
for (idx = 0; idx < 2000; idx++) {
err = hpi_mixer_get_control_by_index(
asihpi->h_mixer,
idx,
&hpi_ctl.src_node_type,
&hpi_ctl.src_node_index,
&hpi_ctl.dst_node_type,
&hpi_ctl.dst_node_index,
&hpi_ctl.control_type,
&hpi_ctl.h_control);
if (err) {
if (err == HPI_ERROR_CONTROL_DISABLED) {
if (mixer_dump)
dev_info(&asihpi->pci->dev,
"Disabled HPI Control(%d)\n",
idx);
continue;
} else
break;
}
hpi_ctl.src_node_type -= HPI_SOURCENODE_NONE;
hpi_ctl.dst_node_type -= HPI_DESTNODE_NONE;
/* ASI50xx in SSX mode has multiple meters on the same node.
Use subindex to create distinct ALSA controls
for any duplicated controls.
*/
if ((hpi_ctl.control_type == prev_ctl.control_type) &&
(hpi_ctl.src_node_type == prev_ctl.src_node_type) &&
(hpi_ctl.src_node_index == prev_ctl.src_node_index) &&
(hpi_ctl.dst_node_type == prev_ctl.dst_node_type) &&
(hpi_ctl.dst_node_index == prev_ctl.dst_node_index))
subindex++;
else
subindex = 0;
prev_ctl = hpi_ctl;
switch (hpi_ctl.control_type) {
case HPI_CONTROL_VOLUME:
err = snd_asihpi_volume_add(asihpi, &hpi_ctl);
break;
case HPI_CONTROL_LEVEL:
err = snd_asihpi_level_add(asihpi, &hpi_ctl);
break;
case HPI_CONTROL_MULTIPLEXER:
err = snd_asihpi_mux_add(asihpi, &hpi_ctl);
break;
case HPI_CONTROL_CHANNEL_MODE:
err = snd_asihpi_cmode_add(asihpi, &hpi_ctl);
break;
case HPI_CONTROL_METER:
err = snd_asihpi_meter_add(asihpi, &hpi_ctl, subindex);
break;
case HPI_CONTROL_SAMPLECLOCK:
err = snd_asihpi_sampleclock_add(
asihpi, &hpi_ctl);
break;
case HPI_CONTROL_CONNECTION: /* ignore these */
continue;
case HPI_CONTROL_TUNER:
err = snd_asihpi_tuner_add(asihpi, &hpi_ctl);
break;
case HPI_CONTROL_AESEBU_TRANSMITTER:
err = snd_asihpi_aesebu_tx_add(asihpi, &hpi_ctl);
break;
case HPI_CONTROL_AESEBU_RECEIVER:
err = snd_asihpi_aesebu_rx_add(asihpi, &hpi_ctl);
break;
case HPI_CONTROL_VOX:
case HPI_CONTROL_BITSTREAM:
case HPI_CONTROL_MICROPHONE:
case HPI_CONTROL_PARAMETRIC_EQ:
case HPI_CONTROL_COMPANDER:
default:
if (mixer_dump)
dev_info(&asihpi->pci->dev,
"Untranslated HPI Control (%d) %d %d %d %d %d\n",
idx,
hpi_ctl.control_type,
hpi_ctl.src_node_type,
hpi_ctl.src_node_index,
hpi_ctl.dst_node_type,
hpi_ctl.dst_node_index);
continue;
}
if (err < 0)
return err;
}
if (HPI_ERROR_INVALID_OBJ_INDEX != err)
hpi_handle_error(err);
dev_info(&asihpi->pci->dev, "%d mixer controls found\n", idx);
return 0;
}
/*------------------------------------------------------------
/proc interface
------------------------------------------------------------*/
static void
snd_asihpi_proc_read(struct snd_info_entry *entry,
struct snd_info_buffer *buffer)
{
struct snd_card_asihpi *asihpi = entry->private_data;
u32 h_control;
u32 rate = 0;
u16 source = 0;
u16 num_outstreams;
u16 num_instreams;
u16 version;
u32 serial_number;
u16 type;
int err;
snd_iprintf(buffer, "ASIHPI driver proc file\n");
hpi_handle_error(hpi_adapter_get_info(asihpi->hpi->adapter->index,
&num_outstreams, &num_instreams,
&version, &serial_number, &type));
snd_iprintf(buffer,
"Adapter type ASI%4X\nHardware Index %d\n"
"%d outstreams\n%d instreams\n",
type, asihpi->hpi->adapter->index,
num_outstreams, num_instreams);
snd_iprintf(buffer,
"Serial#%d\nHardware version %c%d\nDSP code version %03d\n",
serial_number, ((version >> 3) & 0xf) + 'A', version & 0x7,
((version >> 13) * 100) + ((version >> 7) & 0x3f));
err = hpi_mixer_get_control(asihpi->h_mixer,
HPI_SOURCENODE_CLOCK_SOURCE, 0, 0, 0,
HPI_CONTROL_SAMPLECLOCK, &h_control);
if (!err) {
err = hpi_sample_clock_get_sample_rate(h_control, &rate);
err += hpi_sample_clock_get_source(h_control, &source);
if (!err)
snd_iprintf(buffer, "Sample Clock %dHz, source %s\n",
rate, sampleclock_sources[source]);
}
}
static void snd_asihpi_proc_init(struct snd_card_asihpi *asihpi)
{
struct snd_info_entry *entry;
if (!snd_card_proc_new(asihpi->card, "info", &entry))
snd_info_set_text_ops(entry, asihpi, snd_asihpi_proc_read);
}
/*------------------------------------------------------------
HWDEP
------------------------------------------------------------*/
static int snd_asihpi_hpi_open(struct snd_hwdep *hw, struct file *file)
{
if (enable_hpi_hwdep)
return 0;
else
return -ENODEV;
}
static int snd_asihpi_hpi_release(struct snd_hwdep *hw, struct file *file)
{
if (enable_hpi_hwdep)
return asihpi_hpi_release(file);
else
return -ENODEV;
}
static int snd_asihpi_hpi_ioctl(struct snd_hwdep *hw, struct file *file,
unsigned int cmd, unsigned long arg)
{
if (enable_hpi_hwdep)
return asihpi_hpi_ioctl(file, cmd, arg);
else
return -ENODEV;
}
/* results in /dev/snd/hwC#D0 file for each card with index #
also /proc/asound/hwdep will contain '#-00: asihpi (HPI) for each card'
*/
static int snd_asihpi_hpi_new(struct snd_card_asihpi *asihpi, int device)
{
struct snd_hwdep *hw;
int err;
err = snd_hwdep_new(asihpi->card, "HPI", device, &hw);
if (err < 0)
return err;
strcpy(hw->name, "asihpi (HPI)");
hw->iface = SNDRV_HWDEP_IFACE_LAST;
hw->ops.open = snd_asihpi_hpi_open;
hw->ops.ioctl = snd_asihpi_hpi_ioctl;
hw->ops.release = snd_asihpi_hpi_release;
hw->private_data = asihpi;
return 0;
}
/*------------------------------------------------------------
CARD
------------------------------------------------------------*/
static int snd_asihpi_probe(struct pci_dev *pci_dev,
const struct pci_device_id *pci_id)
{
int err;
struct hpi_adapter *hpi;
struct snd_card *card;
struct snd_card_asihpi *asihpi;
u32 h_control;
u32 h_stream;
u32 adapter_index;
static int dev;
if (dev >= SNDRV_CARDS)
return -ENODEV;
/* Should this be enable[hpi->index] ? */
if (!enable[dev]) {
dev++;
return -ENOENT;
}
/* Initialise low-level HPI driver */
err = asihpi_adapter_probe(pci_dev, pci_id);
if (err < 0)
return err;
hpi = pci_get_drvdata(pci_dev);
adapter_index = hpi->adapter->index;
/* first try to give the card the same index as its hardware index */
err = snd_card_new(&pci_dev->dev, adapter_index, id[adapter_index],
THIS_MODULE, sizeof(struct snd_card_asihpi), &card);
if (err < 0) {
/* if that fails, try the default index==next available */
err = snd_card_new(&pci_dev->dev, index[dev], id[dev],
THIS_MODULE, sizeof(struct snd_card_asihpi),
&card);
if (err < 0)
return err;
dev_warn(&pci_dev->dev, "Adapter index %d->ALSA index %d\n",
adapter_index, card->number);
}
asihpi = card->private_data;
asihpi->card = card;
asihpi->pci = pci_dev;
asihpi->hpi = hpi;
hpi->snd_card = card;
err = hpi_adapter_get_property(adapter_index,
HPI_ADAPTER_PROPERTY_CAPS1,
NULL, &asihpi->support_grouping);
if (err)
asihpi->support_grouping = 0;
err = hpi_adapter_get_property(adapter_index,
HPI_ADAPTER_PROPERTY_CAPS2,
&asihpi->support_mrx, NULL);
if (err)
asihpi->support_mrx = 0;
err = hpi_adapter_get_property(adapter_index,
HPI_ADAPTER_PROPERTY_INTERVAL,
NULL, &asihpi->update_interval_frames);
if (err)
asihpi->update_interval_frames = 512;
if (hpi->interrupt_mode) {
asihpi->pcm_start = snd_card_asihpi_pcm_int_start;
asihpi->pcm_stop = snd_card_asihpi_pcm_int_stop;
tasklet_init(&asihpi->t, snd_card_asihpi_int_task,
(unsigned long)hpi);
hpi->interrupt_callback = snd_card_asihpi_isr;
} else {
asihpi->pcm_start = snd_card_asihpi_pcm_timer_start;
asihpi->pcm_stop = snd_card_asihpi_pcm_timer_stop;
}
hpi_handle_error(hpi_instream_open(adapter_index,
0, &h_stream));
err = hpi_instream_host_buffer_free(h_stream);
asihpi->can_dma = (!err);
hpi_handle_error(hpi_instream_close(h_stream));
if (!asihpi->can_dma)
asihpi->update_interval_frames *= 2;
err = hpi_adapter_get_property(adapter_index,
HPI_ADAPTER_PROPERTY_CURCHANNELS,
&asihpi->in_max_chans, &asihpi->out_max_chans);
if (err) {
asihpi->in_max_chans = 2;
asihpi->out_max_chans = 2;
}
if (asihpi->out_max_chans > 2) { /* assume LL mode */
asihpi->out_min_chans = asihpi->out_max_chans;
asihpi->in_min_chans = asihpi->in_max_chans;
asihpi->support_grouping = 0;
} else {
asihpi->out_min_chans = 1;
asihpi->in_min_chans = 1;
}
dev_info(&pci_dev->dev, "Has dma:%d, grouping:%d, mrx:%d, uif:%d\n",
asihpi->can_dma,
asihpi->support_grouping,
asihpi->support_mrx,
asihpi->update_interval_frames
);
err = snd_card_asihpi_pcm_new(asihpi, 0);
if (err < 0) {
dev_err(&pci_dev->dev, "pcm_new failed\n");
goto __nodev;
}
err = snd_card_asihpi_mixer_new(asihpi);
if (err < 0) {
dev_err(&pci_dev->dev, "mixer_new failed\n");
goto __nodev;
}
err = hpi_mixer_get_control(asihpi->h_mixer,
HPI_SOURCENODE_CLOCK_SOURCE, 0, 0, 0,
HPI_CONTROL_SAMPLECLOCK, &h_control);
if (!err)
err = hpi_sample_clock_set_local_rate(
h_control, adapter_fs);
snd_asihpi_proc_init(asihpi);
/* always create, can be enabled or disabled dynamically
by enable_hwdep module param*/
snd_asihpi_hpi_new(asihpi, 0);
strcpy(card->driver, "ASIHPI");
sprintf(card->shortname, "AudioScience ASI%4X",
asihpi->hpi->adapter->type);
sprintf(card->longname, "%s %i",
card->shortname, adapter_index);
err = snd_card_register(card);
if (!err) {
dev++;
return 0;
}
__nodev:
snd_card_free(card);
dev_err(&pci_dev->dev, "snd_asihpi_probe error %d\n", err);
return err;
}
static void snd_asihpi_remove(struct pci_dev *pci_dev)
{
struct hpi_adapter *hpi = pci_get_drvdata(pci_dev);
struct snd_card_asihpi *asihpi = hpi->snd_card->private_data;
/* Stop interrupts */
if (hpi->interrupt_mode) {
hpi->interrupt_callback = NULL;
hpi_handle_error(hpi_adapter_set_property(hpi->adapter->index,
HPI_ADAPTER_PROPERTY_IRQ_RATE, 0, 0));
tasklet_kill(&asihpi->t);
}
snd_card_free(hpi->snd_card);
hpi->snd_card = NULL;
asihpi_adapter_remove(pci_dev);
}
static const struct pci_device_id asihpi_pci_tbl[] = {
{HPI_PCI_VENDOR_ID_TI, HPI_PCI_DEV_ID_DSP6205,
HPI_PCI_VENDOR_ID_AUDIOSCIENCE, PCI_ANY_ID, 0, 0,
(kernel_ulong_t)HPI_6205},
{HPI_PCI_VENDOR_ID_TI, HPI_PCI_DEV_ID_PCI2040,
HPI_PCI_VENDOR_ID_AUDIOSCIENCE, PCI_ANY_ID, 0, 0,
(kernel_ulong_t)HPI_6000},
{0,}
};
MODULE_DEVICE_TABLE(pci, asihpi_pci_tbl);
static struct pci_driver driver = {
.name = KBUILD_MODNAME,
.id_table = asihpi_pci_tbl,
.probe = snd_asihpi_probe,
.remove = snd_asihpi_remove,
};
static int __init snd_asihpi_init(void)
{
asihpi_init();
return pci_register_driver(&driver);
}
static void __exit snd_asihpi_exit(void)
{
pci_unregister_driver(&driver);
asihpi_exit();
}
module_init(snd_asihpi_init)
module_exit(snd_asihpi_exit)
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