asihpi.c 80.4 KB
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/*
 *  Asihpi soundcard
 *  Copyright (c) by AudioScience Inc <alsa@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.
 */
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#include "hpi_internal.h"
#include "hpimsginit.h"
#include "hpioctl.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>
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#include <linux/module.h>
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#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 ASI5000 ASI6000 ASI87xx ASI89xx");

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#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
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#define snd_printddd(format, args...) do { } while (0)
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#endif

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static int index[SNDRV_CARDS] = SNDRV_DEFAULT_IDX;	/* index 0-MAX */
static char *id[SNDRV_CARDS] = SNDRV_DEFAULT_STR;	/* ID for this card */
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static bool enable[SNDRV_CARDS] = SNDRV_DEFAULT_ENABLE_PNP;
static bool enable_hpi_hwdep = 1;
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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
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static char *build_info = "Built using headers from kernel source";
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module_param(build_info, charp, S_IRUGO);
MODULE_PARM_DESC(build_info, "built using headers from kernel source");
#else
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static char *build_info = "Built within ALSA source";
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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
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#define PERIOD_BYTES_MIN  2048
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#define BUFFER_BYTES_MAX (512 * 1024)

#define MAX_CLOCKSOURCES (HPI_SAMPLECLOCK_SOURCE_LAST + 1 + 7)

struct clk_source {
	int source;
	int index;
	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;
	u16 adapter_index;
	u32 serial_number;
	u16 type;
	u16 version;
	u16 num_outstreams;
	u16 num_instreams;

	u32 h_mixer;
	struct clk_cache cc;

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	u16 can_dma;
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	u16 support_grouping;
	u16 support_mrx;
	u16 update_interval_frames;
	u16 in_max_chans;
	u16 out_max_chans;
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	u16 in_min_chans;
	u16 out_min_chans;
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};

/* Per stream data */
struct snd_card_asihpi_pcm {
	struct timer_list timer;
	unsigned int respawn_timer;
	unsigned int hpi_buffer_attached;
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	unsigned int buffer_bytes;
	unsigned int period_bytes;
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	unsigned int bytes_per_sec;
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	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 */
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	unsigned int drained_count;
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	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;
}

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static u16 hpi_stream_host_buffer_detach(u32  h_stream)
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{
	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;
}

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static inline u16 hpi_stream_start(u32 h_stream)
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{
	if (hpi_handle_object(h_stream) ==  HPI_OBJ_OSTREAM)
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		return hpi_outstream_start(h_stream);
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	else
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		return hpi_instream_start(h_stream);
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}

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static inline u16 hpi_stream_stop(u32 h_stream)
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{
	if (hpi_handle_object(h_stream) ==  HPI_OBJ_OSTREAM)
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		return hpi_outstream_stop(h_stream);
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	else
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		return hpi_instream_stop(h_stream);
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}

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
)
{
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	u16 e;
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	if (hpi_handle_object(h_stream)  ==  HPI_OBJ_OSTREAM)
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		e = hpi_outstream_get_info_ex(h_stream, pw_state,
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					pbuffer_size, pdata_in_buffer,
					psample_count, pauxiliary_data);
	else
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		e = hpi_instream_get_info_ex(h_stream, pw_state,
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					pbuffer_size, pdata_in_buffer,
					psample_count, pauxiliary_data);
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	return e;
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}

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static inline u16 hpi_stream_group_add(
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					u32 h_master,
					u32 h_stream)
{
	if (hpi_handle_object(h_master) ==  HPI_OBJ_OSTREAM)
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		return hpi_outstream_group_add(h_master, h_stream);
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	else
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		return hpi_instream_group_add(h_master, h_stream);
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}

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static inline u16 hpi_stream_group_reset(u32 h_stream)
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{
	if (hpi_handle_object(h_stream) ==  HPI_OBJ_OSTREAM)
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		return hpi_outstream_group_reset(h_stream);
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	else
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		return hpi_instream_group_reset(h_stream);
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}

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static inline u16 hpi_stream_group_get_map(
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				u32 h_stream, u32 *mo, u32 *mi)
{
	if (hpi_handle_object(h_stream) ==  HPI_OBJ_OSTREAM)
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		return hpi_outstream_group_get_map(h_stream, mo, mi);
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	else
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		return hpi_instream_group_get_map(h_stream, mo, mi);
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}

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 ****************/
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static void print_hwparams(struct snd_pcm_substream *substream,
				struct snd_pcm_hw_params *p)
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{
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	char name[16];
	snd_pcm_debug_name(substream, name, sizeof(name));
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	snd_printd("%s HWPARAMS\n", name);
	snd_printd(" samplerate %d Hz\n", params_rate(p));
	snd_printd(" channels %d\n", params_channels(p));
	snd_printd(" format %d\n", params_format(p));
	snd_printd(" subformat %d\n", params_subformat(p));
	snd_printd(" buffer %d B\n", params_buffer_bytes(p));
	snd_printd(" period %d B\n", params_period_bytes(p));
	snd_printd(" access %d\n", params_access(p));
	snd_printd(" period_size %d\n", params_period_size(p));
	snd_printd(" periods %d\n", params_periods(p));
	snd_printd(" buffer_size %d\n", params_buffer_size(p));
	snd_printd(" %d B/s\n", params_rate(p) *
		params_channels(p) *
		snd_pcm_format_width(params_format(p)) / 8);

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}

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
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	/* SNDRV_PCM_FORMAT_S24_3LE */ /* HPI_FORMAT_PCM24_SIGNED 15 */
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#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 */
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		err = hpi_mixer_get_control(asihpi->h_mixer,
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					  HPI_SOURCENODE_CLOCK_SOURCE, 0, 0, 0,
					  HPI_CONTROL_SAMPLECLOCK, &h_control);
		if (err) {
			snd_printk(KERN_ERR
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				"No local sampleclock, err %d\n", err);
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		}

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		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)) {
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				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;
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	int width;
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	unsigned int bytes_per_sec;

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	print_hwparams(substream, params);
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	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) {
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		if (hpi_instream_reset(dpcm->h_stream) != 0)
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			return -EINVAL;

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		if (hpi_instream_set_format(
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			dpcm->h_stream, &dpcm->format) != 0)
			return -EINVAL;
	}

	dpcm->hpi_buffer_attached = 0;
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	if (card->can_dma) {
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		err = hpi_stream_host_buffer_attach(dpcm->h_stream,
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			params_buffer_bytes(params),  runtime->dma_addr);
		if (err == 0) {
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			snd_printdd(
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				"stream_host_buffer_attach succeeded %u %lu\n",
				params_buffer_bytes(params),
				(unsigned long)runtime->dma_addr);
		} else {
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			snd_printd("stream_host_buffer_attach error %d\n",
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					err);
			return -ENOMEM;
		}

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		err = hpi_stream_get_info_ex(dpcm->h_stream, NULL,
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						&dpcm->hpi_buffer_attached,
						NULL, NULL, NULL);

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		snd_printdd("stream_host_buffer_attach status 0x%x\n",
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				dpcm->hpi_buffer_attached);
	}
	bytes_per_sec = params_rate(params) * params_channels(params);
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	width = snd_pcm_format_width(params_format(params));
	bytes_per_sec *= width;
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	bytes_per_sec /= 8;
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	if (width < 0 || bytes_per_sec == 0)
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		return -EINVAL;

	dpcm->bytes_per_sec = bytes_per_sec;
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	dpcm->buffer_bytes = params_buffer_bytes(params);
	dpcm->period_bytes = params_period_bytes(params);
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	return 0;
}

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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)
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		hpi_stream_host_buffer_detach(dpcm->h_stream);
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	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);
}

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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;

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	expiry = HZ / 200;
	/*? (dpcm->period_bytes * HZ / dpcm->bytes_per_sec); */
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	expiry = max(expiry, 1); /* don't let it be zero! */
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	dpcm->timer.expires = jiffies + expiry;
	dpcm->respawn_timer = 1;
	add_timer(&dpcm->timer);
}

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 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;
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	char name[16];
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	snd_pcm_debug_name(substream, name, sizeof(name));
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	snd_printdd("%s trigger\n", name);
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	switch (cmd) {
	case SNDRV_PCM_TRIGGER_START:
		snd_pcm_group_for_each_entry(s, substream) {
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			struct snd_pcm_runtime *runtime = s->runtime;
			struct snd_card_asihpi_pcm *ds = runtime->private_data;
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			if (snd_pcm_substream_chip(s) != card)
				continue;

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			/* don't link Cap and Play */
			if (substream->stream != s->stream)
				continue;

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			ds->drained_count = 0;
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			if (s->stream == SNDRV_PCM_STREAM_PLAYBACK) {
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				/* How do I know how much valid data is present
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				* in buffer? Must be at least one period!
				* Guessing 2 periods, but if
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				* buffer is bigger it may contain even more
				* data??
				*/
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				unsigned int preload = ds->period_bytes * 1;
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				snd_printddd("%d preload x%x\n", s->number, preload);
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				hpi_handle_error(hpi_outstream_write_buf(
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						ds->h_stream,
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						&runtime->dma_area[0],
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						preload,
						&ds->format));
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				ds->pcm_buf_host_rw_ofs = preload;
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			}

			if (card->support_grouping) {
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				snd_printdd("%d group\n", s->number);
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				e = hpi_stream_group_add(
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					dpcm->h_stream,
					ds->h_stream);
				if (!e) {
					snd_pcm_trigger_done(s, substream);
				} else {
					hpi_handle_error(e);
					break;
				}
			} else
				break;
		}
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		snd_printdd("start\n");
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		/* start the master stream */
		snd_card_asihpi_pcm_timer_start(substream);
617
		if ((substream->stream == SNDRV_PCM_STREAM_CAPTURE) ||
618
			!card->can_dma)
619
			hpi_handle_error(hpi_stream_start(dpcm->h_stream));
620 621 622 623 624 625 626
		break;

	case SNDRV_PCM_TRIGGER_STOP:
		snd_card_asihpi_pcm_timer_stop(substream);
		snd_pcm_group_for_each_entry(s, substream) {
			if (snd_pcm_substream_chip(s) != card)
				continue;
627 628 629
			/* don't link Cap and Play */
			if (substream->stream != s->stream)
				continue;
630 631 632 633 634 635

			/*? workaround linked streams don't
			transition to SETUP 20070706*/
			s->runtime->status->state = SNDRV_PCM_STATE_SETUP;

			if (card->support_grouping) {
636
				snd_printdd("%d group\n", s->number);
637 638 639 640
				snd_pcm_trigger_done(s, substream);
			} else
				break;
		}
641
		snd_printdd("stop\n");
642 643

		/* _prepare and _hwparams reset the stream */
644
		hpi_handle_error(hpi_stream_stop(dpcm->h_stream));
645 646
		if (substream->stream == SNDRV_PCM_STREAM_PLAYBACK)
			hpi_handle_error(
647
				hpi_outstream_reset(dpcm->h_stream));
648 649

		if (card->support_grouping)
650
			hpi_handle_error(hpi_stream_group_reset(dpcm->h_stream));
651 652 653
		break;

	case SNDRV_PCM_TRIGGER_PAUSE_RELEASE:
654
		snd_printdd("pause release\n");
655
		hpi_handle_error(hpi_stream_start(dpcm->h_stream));
656 657 658
		snd_card_asihpi_pcm_timer_start(substream);
		break;
	case SNDRV_PCM_TRIGGER_PAUSE_PUSH:
659
		snd_printdd("pause\n");
660
		snd_card_asihpi_pcm_timer_stop(substream);
661
		hpi_handle_error(hpi_stream_stop(dpcm->h_stream));
662 663
		break;
	default:
664
		snd_printd(KERN_ERR "\tINVALID\n");
665 666 667 668 669 670 671 672 673 674 675
		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
*/
/*
676
pcm_buf_dma_ofs=get_buf_pos(s);
677
for_each_linked_stream(s) {
678
	pcm_buf_dma_ofs=get_buf_pos(s);
679
	min_buf_pos = modulo_min(min_buf_pos, pcm_buf_dma_ofs, buffer_bytes)
680
	new_data = min(new_data, calc_new_data(pcm_buf_dma_ofs,irq_pos)
681 682 683
}
timer.expires = jiffies + predict_next_period_ready(min_buf_pos);
for_each_linked_stream(s) {
684
	s->pcm_buf_dma_ofs = min_buf_pos;
685
	if (new_data > period_bytes) {
686
		if (mmap) {
687
			irq_pos = (irq_pos + period_bytes) % buffer_bytes;
688
			if (playback) {
689
				write(period_bytes);
690
			} else {
691
				read(period_bytes);
692 693 694 695 696 697 698 699 700 701 702 703 704 705 706 707 708 709 710 711 712 713 714 715 716 717 718
			}
		}
		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(unsigned long data)
{
	struct snd_card_asihpi_pcm *dpcm = (struct snd_card_asihpi_pcm *)data;
719 720
	struct snd_pcm_substream *substream = dpcm->substream;
	struct snd_card_asihpi *card = snd_pcm_substream_chip(substream);
721 722 723
	struct snd_pcm_runtime *runtime;
	struct snd_pcm_substream *s;
	unsigned int newdata = 0;
724
	unsigned int pcm_buf_dma_ofs, min_buf_pos = 0;
725 726
	unsigned int remdata, xfercount, next_jiffies;
	int first = 1;
727
	int loops = 0;
728
	u16 state;
729
	u32 buffer_size, bytes_avail, samples_played, on_card_bytes;
730 731 732
	char name[16];

	snd_pcm_debug_name(substream, name, sizeof(name));
733

734
	snd_printdd("%s snd_card_asihpi_timer_function\n", name);
735

736
	/* find minimum newdata and buffer pos in group */
737
	snd_pcm_group_for_each_entry(s, substream) {
738 739 740 741 742 743
		struct snd_card_asihpi_pcm *ds = s->runtime->private_data;
		runtime = s->runtime;

		if (snd_pcm_substream_chip(s) != card)
			continue;

744 745 746 747 748
		/* don't link Cap and Play */
		if (substream->stream != s->stream)
			continue;

		hpi_handle_error(hpi_stream_get_info_ex(
749
					ds->h_stream, &state,
750 751
					&buffer_size, &bytes_avail,
					&samples_played, &on_card_bytes));
752 753

		/* number of bytes in on-card buffer */
754
		runtime->delay = on_card_bytes;
755

756 757 758
		if (!card->can_dma)
			on_card_bytes = bytes_avail;

759
		if (s->stream == SNDRV_PCM_STREAM_PLAYBACK) {
760
			pcm_buf_dma_ofs = ds->pcm_buf_host_rw_ofs - bytes_avail;
761
			if (state == HPI_STATE_STOPPED) {
762
				if (bytes_avail == 0) {
763
					hpi_handle_error(hpi_stream_start(ds->h_stream));
764
					snd_printdd("P%d start\n", s->number);
765
					ds->drained_count = 0;
766 767
				}
			} else if (state == HPI_STATE_DRAINED) {
768
				snd_printd(KERN_WARNING "P%d drained\n",
769
						s->number);
770
				ds->drained_count++;
771
				if (ds->drained_count > 20) {
772 773 774 775 776
					snd_pcm_stop(s, SNDRV_PCM_STATE_XRUN);
					continue;
				}
			} else {
				ds->drained_count = 0;
777 778
			}
		} else
779
			pcm_buf_dma_ofs = bytes_avail + ds->pcm_buf_host_rw_ofs;
780 781 782

		if (first) {
			/* can't statically init min when wrap is involved */
783
			min_buf_pos = pcm_buf_dma_ofs;
784
			newdata = (pcm_buf_dma_ofs - ds->pcm_buf_elapsed_dma_ofs) % ds->buffer_bytes;
785 786 787
			first = 0;
		} else {
			min_buf_pos =
788
				modulo_min(min_buf_pos, pcm_buf_dma_ofs, UINT_MAX+1L);
789
			newdata = min(
790
				(pcm_buf_dma_ofs - ds->pcm_buf_elapsed_dma_ofs) % ds->buffer_bytes,
791 792 793
				newdata);
		}

794
		snd_printdd("hw_ptr 0x%04lX, appl_ptr 0x%04lX\n",
795 796 797 798
			(unsigned long)frames_to_bytes(runtime,
						runtime->status->hw_ptr),
			(unsigned long)frames_to_bytes(runtime,
						runtime->control->appl_ptr));
799

800 801 802 803 804 805
		snd_printdd("%d S=%d, "
			"rw=0x%04X, dma=0x%04X, left=0x%04X, "
			"aux=0x%04X space=0x%04X\n",
			s->number, state,
			ds->pcm_buf_host_rw_ofs, pcm_buf_dma_ofs,
			(int)bytes_avail,
806
			(int)on_card_bytes, buffer_size-bytes_avail);
807
		loops++;
808
	}
809
	pcm_buf_dma_ofs = min_buf_pos;
810

811 812
	remdata = newdata % dpcm->period_bytes;
	xfercount = newdata - remdata; /* a multiple of period_bytes */
813 814 815 816
	/* come back when on_card_bytes has decreased enough to allow
	   write to happen, or when data has been consumed to make another
	   period
	*/
817 818
	if (xfercount && (on_card_bytes  > dpcm->period_bytes))
		next_jiffies = ((on_card_bytes - dpcm->period_bytes) * HZ / dpcm->bytes_per_sec);
819
	else
820
		next_jiffies = ((dpcm->period_bytes - remdata) * HZ / dpcm->bytes_per_sec);
821 822

	next_jiffies = max(next_jiffies, 1U);
823
	dpcm->timer.expires = jiffies + next_jiffies;
824
	snd_printdd("jif %d buf pos 0x%04X newdata 0x%04X xfer 0x%04X\n",
825 826
			next_jiffies, pcm_buf_dma_ofs, newdata, xfercount);

827
	snd_pcm_group_for_each_entry(s, substream) {
828 829
		struct snd_card_asihpi_pcm *ds = s->runtime->private_data;

830 831 832 833
		/* don't link Cap and Play */
		if (substream->stream != s->stream)
			continue;

834 835
		ds->pcm_buf_dma_ofs = pcm_buf_dma_ofs;

836 837 838 839 840 841 842 843 844 845 846
		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];

847
			if (card->can_dma) { /* buffer wrap is handled at lower level */
848 849 850 851 852 853 854 855 856 857 858 859 860 861 862 863 864 865 866
				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("P%d write1 0x%04X 0x%04X\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("P%d write2 0x%04X 0x%04X\n",
867
							s->number,
868
							xfercount - xfer1, buf_ofs);
869 870
					hpi_handle_error(
						hpi_outstream_write_buf(
871 872
							ds->h_stream, pd,
							xfercount - xfer1,
873
							&ds->format));
874 875 876 877 878 879 880 881 882 883 884 885
				}
			} else {
				snd_printddd("C%d read1 0x%04x\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("C%d read2 0x%04x\n",
						s->number, xfer2);
886 887
					hpi_handle_error(
						hpi_instream_read_buf(
888
							ds->h_stream,
889
							pd, xfer2));
890
				}
891
			}
892 893
			ds->pcm_buf_host_rw_ofs += xfercount;
			ds->pcm_buf_elapsed_dma_ofs += xfercount;
894 895 896 897 898 899 900 901 902 903 904 905
			snd_pcm_period_elapsed(s);
		}
	}

	if (dpcm->respawn_timer)
		add_timer(&dpcm->timer);
}

/***************************** PLAYBACK OPS ****************/
static int snd_card_asihpi_playback_ioctl(struct snd_pcm_substream *substream,
					  unsigned int cmd, void *arg)
{
906 907 908
	char name[16];
	snd_pcm_debug_name(substream, name, sizeof(name));
	snd_printddd(KERN_INFO "%s ioctl %d\n", name, cmd);
909 910 911 912 913 914 915 916 917
	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;

918
	snd_printdd("P%d prepare\n", substream->number);
919

920
	hpi_handle_error(hpi_outstream_reset(dpcm->h_stream));
921 922 923
	dpcm->pcm_buf_host_rw_ofs = 0;
	dpcm->pcm_buf_dma_ofs = 0;
	dpcm->pcm_buf_elapsed_dma_ofs = 0;
924 925 926 927 928 929 930 931 932
	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;
933 934
	char name[16];
	snd_pcm_debug_name(substream, name, sizeof(name));
935

936
	ptr = bytes_to_frames(runtime, dpcm->pcm_buf_dma_ofs  % dpcm->buffer_bytes);
937
	snd_printddd("%s pointer = 0x%04lx\n", name, (unsigned long)ptr);
938 939 940 941 942 943 944 945 946 947 948 949 950 951 952 953
	return ptr;
}

static void snd_card_asihpi_playback_format(struct snd_card_asihpi *asihpi,
						u32 h_stream,
						struct snd_pcm_hardware *pcmhw)
{
	struct hpi_format hpi_format;
	u16 format;
	u16 err;
	u32 h_control;
	u32 sample_rate = 48000;

	/* on cards without SRC, must query at valid rate,
	* maybe set by external sync
	*/
954
	err = hpi_mixer_get_control(asihpi->h_mixer,
955 956 957 958
				  HPI_SOURCENODE_CLOCK_SOURCE, 0, 0, 0,
				  HPI_CONTROL_SAMPLECLOCK, &h_control);

	if (!err)
959
		err = hpi_sample_clock_get_sample_rate(h_control,
960 961 962 963 964 965 966
				&sample_rate);

	for (format = HPI_FORMAT_PCM8_UNSIGNED;
	     format <= HPI_FORMAT_PCM24_SIGNED; format++) {
		err = hpi_format_create(&hpi_format,
					2, format, sample_rate, 128000, 0);
		if (!err)
967
			err = hpi_outstream_query_format(h_stream,
968 969 970 971 972 973 974 975 976 977 978 979 980 981 982 983 984 985 986 987 988 989 990 991 992 993 994 995
							&hpi_format);
		if (!err && (hpi_to_alsa_formats[format] != -1))
			pcmhw->formats |=
				(1ULL << hpi_to_alsa_formats[format]);
	}
}

static struct snd_pcm_hardware snd_card_asihpi_playback = {
	.buffer_bytes_max = BUFFER_BYTES_MAX,
	.period_bytes_min = PERIOD_BYTES_MIN,
	.period_bytes_max = BUFFER_BYTES_MAX / PERIODS_MIN,
	.periods_min = PERIODS_MIN,
	.periods_max = BUFFER_BYTES_MAX / PERIOD_BYTES_MIN,
	.fifo_size = 0,
};

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);
	int err;

	dpcm = kzalloc(sizeof(*dpcm), GFP_KERNEL);
	if (dpcm == NULL)
		return -ENOMEM;

	err =
996
	    hpi_outstream_open(card->adapter_index,
997 998 999 1000 1001 1002 1003 1004 1005 1006 1007
			      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.
L
Lucas De Marchi 已提交
1008
	    If internal and other stream playing, can't switch
1009 1010 1011 1012 1013 1014 1015 1016 1017 1018
	*/

	init_timer(&dpcm->timer);
	dpcm->timer.data = (unsigned long) dpcm;
	dpcm->timer.function = snd_card_asihpi_timer_function;
	dpcm->substream = substream;
	runtime->private_data = dpcm;
	runtime->private_free = snd_card_asihpi_runtime_free;

	snd_card_asihpi_playback.channels_max = card->out_max_chans;
1019
	snd_card_asihpi_playback.channels_min = card->out_min_chans;
1020 1021 1022 1023 1024 1025 1026 1027 1028 1029 1030 1031
	/*?snd_card_asihpi_playback.period_bytes_min =
	card->out_max_chans * 4096; */

	snd_card_asihpi_playback_format(card, dpcm->h_stream,
					&snd_card_asihpi_playback);

	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 |
1032 1033 1034
					SNDRV_PCM_INFO_PAUSE |
					SNDRV_PCM_INFO_MMAP |
					SNDRV_PCM_INFO_MMAP_VALID;
1035 1036 1037 1038 1039 1040 1041

	if (card->support_grouping)
		snd_card_asihpi_playback.info |= SNDRV_PCM_INFO_SYNC_START;

	/* struct is copied, so can create initializer dynamically */
	runtime->hw = snd_card_asihpi_playback;

1042
	if (card->can_dma)
1043 1044 1045 1046 1047 1048 1049
		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);
1050

1051
	snd_pcm_hw_constraint_minmax(runtime, SNDRV_PCM_HW_PARAM_PERIOD_SIZE,
1052
		card->update_interval_frames * 2, UINT_MAX);
1053 1054 1055

	snd_pcm_set_sync(substream);

1056
	snd_printdd("playback open\n");
1057 1058 1059 1060 1061 1062 1063 1064 1065

	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;

1066
	hpi_handle_error(hpi_outstream_close(dpcm->h_stream));
1067
	snd_printdd("playback close\n");
1068 1069 1070 1071 1072 1073 1074 1075 1076 1077 1078 1079 1080 1081 1082 1083 1084 1085 1086 1087 1088 1089

	return 0;
}

static 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;

1090
	snd_printddd("capture pointer %d=%d\n",
1091 1092
			substream->number, dpcm->pcm_buf_dma_ofs);
	/* NOTE Unlike playback can't use actual samples_played
1093 1094 1095
		for the capture position, because those samples aren't yet in
		the local buffer available for reading.
	*/
1096
	return bytes_to_frames(runtime, dpcm->pcm_buf_dma_ofs % dpcm->buffer_bytes);
1097 1098 1099 1100 1101 1102 1103 1104 1105 1106 1107 1108 1109
}

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;

1110
	hpi_handle_error(hpi_instream_reset(dpcm->h_stream));
1111 1112 1113
	dpcm->pcm_buf_host_rw_ofs = 0;
	dpcm->pcm_buf_dma_ofs = 0;
	dpcm->pcm_buf_elapsed_dma_ofs = 0;
1114

1115
	snd_printdd("Capture Prepare %d\n", substream->number);
1116 1117 1118 1119 1120 1121 1122 1123 1124 1125 1126 1127 1128 1129 1130 1131 1132
	return 0;
}



static void snd_card_asihpi_capture_format(struct snd_card_asihpi *asihpi,
					u32 h_stream,
					 struct snd_pcm_hardware *pcmhw)
{
  struct hpi_format hpi_format;
	u16 format;
	u16 err;
	u32 h_control;
	u32 sample_rate = 48000;

	/* on cards without SRC, must query at valid rate,
		maybe set by external sync */
1133
	err = hpi_mixer_get_control(asihpi->h_mixer,
1134 1135 1136 1137
				  HPI_SOURCENODE_CLOCK_SOURCE, 0, 0, 0,
				  HPI_CONTROL_SAMPLECLOCK, &h_control);

	if (!err)
1138
		err = hpi_sample_clock_get_sample_rate(h_control,
1139 1140 1141 1142 1143 1144 1145 1146
			&sample_rate);

	for (format = HPI_FORMAT_PCM8_UNSIGNED;
		format <= HPI_FORMAT_PCM24_SIGNED; format++) {

		err = hpi_format_create(&hpi_format, 2, format,
				sample_rate, 128000, 0);
		if (!err)
1147
			err = hpi_instream_query_format(h_stream,
1148 1149 1150 1151 1152 1153 1154 1155 1156 1157 1158 1159 1160 1161 1162 1163 1164 1165 1166 1167 1168 1169 1170 1171 1172 1173 1174 1175
					    &hpi_format);
		if (!err)
			pcmhw->formats |=
				(1ULL << hpi_to_alsa_formats[format]);
	}
}


static struct snd_pcm_hardware snd_card_asihpi_capture = {
	.buffer_bytes_max = BUFFER_BYTES_MAX,
	.period_bytes_min = PERIOD_BYTES_MIN,
	.period_bytes_max = BUFFER_BYTES_MAX / PERIODS_MIN,
	.periods_min = PERIODS_MIN,
	.periods_max = BUFFER_BYTES_MAX / PERIOD_BYTES_MIN,
	.fifo_size = 0,
};

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;
	int err;

	dpcm = kzalloc(sizeof(*dpcm), GFP_KERNEL);
	if (dpcm == NULL)
		return -ENOMEM;

1176
	snd_printdd("capture open adapter %d stream %d\n",
1177 1178 1179
		   card->adapter_index, substream->number);

	err = hpi_handle_error(
1180
	    hpi_instream_open(card->adapter_index,
1181 1182 1183 1184 1185 1186 1187 1188 1189 1190 1191 1192 1193 1194 1195 1196 1197
			     substream->number, &dpcm->h_stream));
	if (err)
		kfree(dpcm);
	if (err == HPI_ERROR_OBJ_ALREADY_OPEN)
		return -EBUSY;
	if (err)
		return -EIO;


	init_timer(&dpcm->timer);
	dpcm->timer.data = (unsigned long) dpcm;
	dpcm->timer.function = snd_card_asihpi_timer_function;
	dpcm->substream = substream;
	runtime->private_data = dpcm;
	runtime->private_free = snd_card_asihpi_runtime_free;

	snd_card_asihpi_capture.channels_max = card->in_max_chans;
1198
	snd_card_asihpi_capture.channels_min = card->in_min_chans;
1199 1200 1201
	snd_card_asihpi_capture_format(card, dpcm->h_stream,
				       &snd_card_asihpi_capture);
	snd_card_asihpi_pcm_samplerates(card,  &snd_card_asihpi_capture);
1202 1203 1204
	snd_card_asihpi_capture.info = SNDRV_PCM_INFO_INTERLEAVED |
					SNDRV_PCM_INFO_MMAP |
					SNDRV_PCM_INFO_MMAP_VALID;
1205

1206 1207 1208
	if (card->support_grouping)
		snd_card_asihpi_capture.info |= SNDRV_PCM_INFO_SYNC_START;

1209 1210
	runtime->hw = snd_card_asihpi_capture;

1211
	if (card->can_dma)
1212 1213 1214 1215 1216 1217 1218 1219 1220 1221 1222 1223 1224 1225 1226 1227 1228 1229 1230
		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 * 2, 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;

1231
	hpi_handle_error(hpi_instream_close(dpcm->h_stream));
1232 1233 1234 1235 1236 1237 1238 1239 1240 1241 1242 1243 1244 1245 1246 1247 1248 1249 1250 1251
	return 0;
}

static 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 __devinit snd_card_asihpi_pcm_new(struct snd_card_asihpi *asihpi,
				      int device, int substreams)
{
	struct snd_pcm *pcm;
	int err;

1252
	err = snd_pcm_new(asihpi->card, "Asihpi PCM", device,
1253 1254 1255 1256 1257 1258 1259 1260 1261 1262 1263 1264
			 asihpi->num_outstreams, asihpi->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;
1265
	strcpy(pcm->name, "Asihpi PCM");
1266 1267 1268 1269 1270 1271 1272 1273 1274 1275 1276 1277 1278 1279 1280 1281 1282 1283 1284 1285 1286 1287

	/*? 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[44]; /* copied to snd_ctl_elem_id.name[44]; */
};

1288
static const char * const asihpi_tuner_band_names[] = {
1289 1290 1291 1292 1293 1294 1295 1296 1297 1298 1299 1300 1301 1302 1303 1304 1305
	"invalid",
	"AM",
	"FM mono",
	"TV NTSC-M",
	"FM stereo",
	"AUX",
	"TV PAL BG",
	"TV PAL I",
	"TV PAL DK",
	"TV SECAM",
};

compile_time_assert(
	(ARRAY_SIZE(asihpi_tuner_band_names) ==
		(HPI_TUNER_BAND_LAST+1)),
	assert_tuner_band_names_size);

1306
static const char * const asihpi_src_names[] = {
1307
	"no source",
1308 1309 1310 1311
	"PCM",
	"Line",
	"Digital",
	"Tuner",
1312
	"RF",
1313 1314
	"Clock",
	"Bitstream",
1315 1316
	"Mic",
	"Net",
1317 1318
	"Analog",
	"Adapter",
1319 1320
	"RTP",
	"GPI",
1321 1322 1323 1324
};

compile_time_assert(
	(ARRAY_SIZE(asihpi_src_names) ==
1325
		(HPI_SOURCENODE_LAST_INDEX-HPI_SOURCENODE_NONE+1)),
1326 1327
	assert_src_names_size);

1328
static const char * const asihpi_dst_names[] = {
1329
	"no destination",
1330 1331 1332
	"PCM",
	"Line",
	"Digital",
1333
	"RF",
1334
	"Speaker",
1335 1336 1337 1338
	"Net",
	"Analog",
	"RTP",
	"GPO",
1339 1340 1341 1342
};

compile_time_assert(
	(ARRAY_SIZE(asihpi_dst_names) ==
1343
		(HPI_DESTNODE_LAST_INDEX-HPI_DESTNODE_NONE+1)),
1344 1345 1346 1347 1348 1349 1350 1351 1352 1353 1354 1355 1356 1357 1358 1359 1360 1361 1362 1363 1364
	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)
		snd_printk(KERN_INFO "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)
{
1365
	char *dir;
1366 1367 1368 1369 1370 1371
	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;

1372 1373 1374
	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)
1375 1376 1377 1378
		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 */
1379 1380
	else if (hpi_ctl->src_node_type &&
		(hpi_ctl->src_node_type + HPI_SOURCENODE_NONE != HPI_SOURCENODE_OSTREAM) &&
1381 1382 1383 1384 1385
		(hpi_ctl->dst_node_type))
		dir = "Monitor Playback "; /* Between an input and an output */
	else
		dir = "Playback "; /* PCM Playback source, or  output node */

1386
	if (hpi_ctl->src_node_type && hpi_ctl->dst_node_type)
1387
		sprintf(hpi_ctl->name, "%s %d %s %d %s%s",
1388 1389 1390 1391
			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,
1392
			dir, name);
1393
	else if (hpi_ctl->dst_node_type) {
1394
		sprintf(hpi_ctl->name, "%s %d %s%s",
1395 1396
		asihpi_dst_names[hpi_ctl->dst_node_type],
		hpi_ctl->dst_node_index,
1397
		dir, name);
1398
	} else {
1399
		sprintf(hpi_ctl->name, "%s %d %s%s",
1400 1401
		asihpi_src_names[hpi_ctl->src_node_type],
		hpi_ctl->src_node_index,
1402
		dir, name);
1403
	}
1404 1405
	/* printk(KERN_INFO "Adding %s %d to %d ",  hpi_ctl->name,
		hpi_ctl->wSrcNodeType, hpi_ctl->wDstNodeType); */
1406 1407 1408 1409 1410 1411 1412 1413 1414 1415
}

/*------------------------------------------------------------
   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;
1416
	u32 count;
1417 1418 1419 1420 1421 1422
	u16 err;
	/* native gains are in millibels */
	short min_gain_mB;
	short max_gain_mB;
	short step_gain_mB;

1423
	err = hpi_volume_query_range(h_control,
1424 1425 1426 1427 1428 1429 1430
			&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;
	}

1431 1432 1433 1434
	err = hpi_meter_query_channels(h_control, &count);
	if (err)
		count = HPI_MAX_CHANNELS;

1435
	uinfo->type = SNDRV_CTL_ELEM_TYPE_INTEGER;
1436
	uinfo->count = count;
1437 1438 1439 1440 1441 1442 1443 1444 1445 1446 1447 1448
	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];

1449
	hpi_handle_error(hpi_volume_get_gain(h_control, an_gain_mB));
1450 1451 1452 1453 1454 1455 1456 1457 1458 1459 1460 1461 1462 1463 1464 1465 1466 1467 1468 1469 1470
	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;
1471
	hpi_handle_error(hpi_volume_set_gain(h_control, an_gain_mB));
1472 1473 1474 1475 1476
	return change;
}

static const DECLARE_TLV_DB_SCALE(db_scale_100, -10000, VOL_STEP_mB, 0);

1477
#define snd_asihpi_volume_mute_info	snd_ctl_boolean_mono_info
1478 1479 1480 1481 1482 1483 1484 1485 1486 1487 1488 1489 1490 1491 1492 1493 1494 1495 1496 1497 1498 1499 1500 1501 1502 1503

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;
}

1504 1505 1506 1507 1508
static int __devinit 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;
1509 1510
	int err;
	u32 mute;
1511

1512
	asihpi_ctl_init(&snd_control, hpi_ctl, "Volume");
1513 1514 1515 1516 1517 1518 1519
	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;

1520 1521 1522 1523 1524 1525 1526 1527 1528 1529 1530 1531 1532
	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;
1533 1534 1535 1536 1537 1538 1539 1540 1541 1542 1543 1544 1545 1546 1547
}

/*------------------------------------------------------------
   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 =
1548
	    hpi_level_query_range(h_control, &min_gain_mB,
1549 1550 1551 1552 1553 1554 1555 1556 1557 1558 1559 1560 1561 1562 1563 1564 1565 1566 1567 1568 1569
			       &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];

1570
	hpi_handle_error(hpi_level_get_gain(h_control, an_gain_mB));
1571 1572 1573 1574 1575 1576 1577 1578 1579 1580 1581 1582 1583 1584 1585 1586 1587 1588 1589 1590 1591 1592 1593
	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;
1594
	hpi_handle_error(hpi_level_set_gain(h_control, an_gain_mB));
1595 1596 1597 1598 1599 1600 1601 1602 1603 1604 1605 1606
	return change;
}

static const DECLARE_TLV_DB_SCALE(db_scale_level, -1000, 100, 0);

static int __devinit 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 */
1607
	asihpi_ctl_init(&snd_control, hpi_ctl, "Level");
1608 1609 1610 1611 1612 1613 1614 1615 1616 1617 1618 1619 1620 1621 1622
	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 */
1623 1624
static const char * const asihpi_aesebu_format_names[] = {
	"N/A", "S/PDIF", "AES/EBU" };
1625 1626 1627 1628 1629 1630 1631 1632 1633 1634 1635 1636 1637 1638 1639 1640 1641 1642 1643 1644

static int snd_asihpi_aesebu_format_info(struct snd_kcontrol *kcontrol,
				  struct snd_ctl_elem_info *uinfo)
{
	uinfo->type = SNDRV_CTL_ELEM_TYPE_ENUMERATED;
	uinfo->count = 1;
	uinfo->value.enumerated.items = 3;

	if (uinfo->value.enumerated.item >= uinfo->value.enumerated.items)
		uinfo->value.enumerated.item =
			uinfo->value.enumerated.items - 1;

	strcpy(uinfo->value.enumerated.name,
		asihpi_aesebu_format_names[uinfo->value.enumerated.item]);

	return 0;
}

static int snd_asihpi_aesebu_format_get(struct snd_kcontrol *kcontrol,
			struct snd_ctl_elem_value *ucontrol,
1645
			u16 (*func)(u32, u16 *))
1646 1647 1648 1649
{
	u32 h_control = kcontrol->private_value;
	u16 source, err;

1650
	err = func(h_control, &source);
1651 1652 1653 1654 1655 1656 1657 1658 1659 1660 1661 1662 1663 1664 1665 1666

	/* 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,
1667
			 u16 (*func)(u32, u16))
1668 1669 1670 1671 1672 1673 1674 1675 1676 1677 1678
{
	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;

1679
	if (func(h_control, source) != 0)
1680 1681 1682 1683 1684 1685 1686 1687
		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,
1688
					hpi_aesebu_receiver_get_format);
1689 1690 1691 1692 1693
}

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,
1694
					hpi_aesebu_receiver_set_format);
1695 1696 1697 1698 1699 1700 1701 1702 1703 1704 1705 1706 1707 1708 1709 1710 1711 1712 1713 1714 1715
}

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;

1716 1717
	hpi_handle_error(hpi_aesebu_receiver_get_error_status(
					 h_control, &status));
1718 1719 1720 1721 1722 1723 1724 1725 1726 1727
	ucontrol->value.integer.value[0] = status;
	return 0;
}

static int __devinit 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;

1728
	asihpi_ctl_init(&snd_control, hpi_ctl, "Format");
1729 1730 1731 1732 1733 1734 1735 1736 1737
	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;

1738
	asihpi_ctl_init(&snd_control, hpi_ctl, "Status");
1739 1740 1741 1742 1743 1744 1745 1746 1747 1748 1749
	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,
1750
					hpi_aesebu_transmitter_get_format);
1751 1752 1753 1754 1755
}

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,
1756
					hpi_aesebu_transmitter_set_format);
1757 1758 1759 1760 1761 1762 1763 1764 1765
}


static int __devinit 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;

1766
	asihpi_ctl_init(&snd_control, hpi_ctl, "Format");
1767 1768 1769 1770 1771 1772 1773 1774 1775 1776 1777 1778 1779 1780 1781 1782 1783 1784 1785 1786 1787 1788 1789
	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++) {
1790
		err = hpi_tuner_query_gain(h_control,
1791 1792 1793 1794 1795 1796 1797 1798 1799 1800 1801 1802 1803 1804 1805 1806 1807 1808 1809 1810 1811 1812
					  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;

1813
	hpi_handle_error(hpi_tuner_get_gain(h_control, &gain));
1814 1815 1816 1817 1818 1819 1820 1821 1822 1823 1824 1825 1826 1827 1828
	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;
1829
	hpi_handle_error(hpi_tuner_set_gain(h_control, gain));
1830 1831 1832 1833 1834 1835 1836 1837 1838 1839 1840 1841 1842

	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++) {
1843
		err = hpi_tuner_query_band(
1844 1845 1846 1847 1848 1849 1850 1851 1852 1853 1854 1855 1856 1857 1858 1859 1860 1861 1862 1863 1864 1865 1866 1867 1868 1869 1870 1871 1872 1873 1874 1875 1876 1877 1878 1879 1880 1881 1882 1883 1884 1885 1886 1887 1888 1889 1890 1891 1892 1893 1894 1895 1896 1897 1898
				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;

	uinfo->type = SNDRV_CTL_ELEM_TYPE_ENUMERATED;
	uinfo->count = 1;
	uinfo->value.enumerated.items = num_bands;

	if (num_bands > 0) {
		if (uinfo->value.enumerated.item >=
					uinfo->value.enumerated.items)
			uinfo->value.enumerated.item =
				uinfo->value.enumerated.items - 1;

		strcpy(uinfo->value.enumerated.name,
			asihpi_tuner_band_names[
				tuner_bands[uinfo->value.enumerated.item]]);

	}
	return 0;
}

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);

1899
	hpi_handle_error(hpi_tuner_get_band(h_control, &band));
1900 1901 1902 1903 1904 1905 1906 1907 1908 1909 1910 1911 1912 1913 1914 1915 1916 1917 1918 1919 1920 1921 1922 1923 1924 1925

	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;
	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);

	band = tuner_bands[ucontrol->value.enumerated.item[0]];
1926
	hpi_handle_error(hpi_tuner_set_band(h_control, band));
1927 1928 1929 1930 1931 1932 1933 1934 1935 1936 1937 1938 1939 1940 1941 1942 1943 1944 1945 1946 1947 1948 1949 1950

	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++) {
1951
			err = hpi_tuner_query_frequency(h_control,
1952 1953 1954 1955 1956 1957 1958 1959 1960 1961 1962 1963 1964 1965 1966 1967 1968 1969 1970 1971 1972 1973 1974 1975 1976 1977 1978 1979 1980 1981 1982 1983
				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;

1984
	hpi_handle_error(hpi_tuner_get_frequency(h_control, &freq));
1985 1986 1987 1988 1989 1990 1991 1992 1993 1994 1995 1996
	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];
1997
	hpi_handle_error(hpi_tuner_set_frequency(h_control, freq));
1998 1999 2000 2001 2002 2003 2004 2005 2006 2007 2008 2009 2010 2011

	return 1;
}

/* Tuner control group initializer  */
static int __devinit 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;

2012
	if (!hpi_tuner_get_gain(hpi_ctl->h_control, NULL)) {
2013
		asihpi_ctl_init(&snd_control, hpi_ctl, "Gain");
2014 2015 2016 2017 2018 2019 2020 2021
		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;
	}

2022
	asihpi_ctl_init(&snd_control, hpi_ctl, "Band");
2023 2024 2025 2026 2027 2028 2029
	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;

2030
	asihpi_ctl_init(&snd_control, hpi_ctl, "Freq");
2031 2032 2033 2034 2035 2036 2037 2038 2039 2040 2041 2042 2043
	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)
{
2044 2045 2046 2047 2048 2049 2050
	u32 h_control = kcontrol->private_value;
	u32 count;
	u16 err;
	err = hpi_meter_query_channels(h_control, &count);
	if (err)
		count = HPI_MAX_CHANNELS;

2051
	uinfo->type = SNDRV_CTL_ELEM_TYPE_INTEGER;
2052
	uinfo->count = count;
2053 2054 2055 2056 2057 2058 2059 2060 2061 2062 2063 2064 2065 2066 2067 2068 2069 2070 2071 2072 2073 2074 2075 2076 2077 2078 2079 2080 2081 2082 2083 2084 2085 2086 2087
	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;

2088
	err = hpi_meter_get_peak(h_control, an_gain_mB);
2089 2090 2091 2092 2093 2094 2095 2096 2097 2098 2099 2100 2101 2102 2103 2104 2105 2106 2107 2108 2109 2110 2111 2112

	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 __devinit 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;

2113
	asihpi_ctl_init(&snd_control, hpi_ctl, "Meter");
2114 2115 2116 2117 2118 2119 2120 2121 2122 2123 2124 2125 2126 2127 2128 2129 2130 2131 2132
	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++) {
2133
		err = hpi_multiplexer_query_source(h_control, s,
2134 2135 2136 2137 2138 2139 2140 2141 2142 2143 2144 2145 2146 2147 2148 2149 2150 2151 2152 2153 2154 2155 2156 2157 2158 2159 2160
						  &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 =
2161
	    hpi_multiplexer_query_source(h_control,
2162 2163 2164 2165
					uinfo->value.enumerated.item,
					&src_node_type, &src_node_index);

	sprintf(uinfo->value.enumerated.name, "%s %d",
2166
		asihpi_src_names[src_node_type - HPI_SOURCENODE_NONE],
2167 2168 2169 2170 2171 2172 2173 2174 2175 2176 2177 2178
		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;

2179
	hpi_handle_error(hpi_multiplexer_get_source(h_control,
2180 2181 2182
				&source_type, &source_index));
	/* Should cache this search result! */
	for (s = 0; s < 256; s++) {
2183
		if (hpi_multiplexer_query_source(h_control, s,
2184 2185 2186 2187 2188 2189 2190 2191 2192 2193
					    &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
2194
		"Control %x failed to match mux source %hu %hu\n",
2195 2196 2197 2198 2199 2200 2201 2202 2203 2204 2205 2206 2207 2208 2209
		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;

2210
	e = hpi_multiplexer_query_source(h_control,
2211 2212 2213 2214
				    ucontrol->value.enumerated.item[0],
				    &source_type, &source_index);
	if (!e)
		hpi_handle_error(
2215
			hpi_multiplexer_set_source(h_control,
2216 2217 2218 2219 2220 2221 2222 2223 2224 2225 2226
						source_type, source_index));
	return change;
}


static int  __devinit 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;

2227
	asihpi_ctl_init(&snd_control, hpi_ctl, "Route");
2228 2229 2230 2231 2232 2233 2234 2235 2236 2237 2238 2239 2240 2241 2242
	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)
{
2243 2244 2245 2246 2247
	static const char * const mode_names[HPI_CHANNEL_MODE_LAST + 1] = {
		"invalid",
		"Normal", "Swap",
		"From Left", "From Right",
		"To Left", "To Right"
2248 2249 2250 2251 2252
	};

	u32 h_control = kcontrol->private_value;
	u16 mode;
	int i;
2253 2254
	u16 mode_map[6];
	int valid_modes = 0;
2255 2256 2257 2258 2259

	/* 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++)
2260
		if (!hpi_channel_mode_query_mode(
2261
			h_control, i, &mode)) {
2262 2263 2264
			mode_map[valid_modes] = mode;
			valid_modes++;
			}
2265 2266 2267

	uinfo->type = SNDRV_CTL_ELEM_TYPE_ENUMERATED;
	uinfo->count = 1;
2268
	uinfo->value.enumerated.items = valid_modes;
2269

2270 2271
	if (uinfo->value.enumerated.item >= valid_modes)
		uinfo->value.enumerated.item = valid_modes - 1;
2272 2273

	strcpy(uinfo->value.enumerated.name,
2274
	       mode_names[mode_map[uinfo->value.enumerated.item]]);
2275 2276 2277 2278 2279 2280 2281 2282 2283 2284

	return 0;
}

static int snd_asihpi_cmode_get(struct snd_kcontrol *kcontrol,
				struct snd_ctl_elem_value *ucontrol)
{
	u32 h_control = kcontrol->private_value;
	u16 mode;

2285
	if (hpi_channel_mode_get(h_control, &mode))
2286 2287 2288 2289 2290 2291 2292 2293 2294 2295 2296 2297 2298 2299 2300
		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;

2301
	hpi_handle_error(hpi_channel_mode_set(h_control,
2302 2303 2304 2305 2306 2307 2308 2309 2310 2311 2312
			   ucontrol->value.enumerated.item[0] + 1));
	return change;
}


static int __devinit 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;

2313
	asihpi_ctl_init(&snd_control, hpi_ctl, "Mode");
2314 2315 2316 2317 2318 2319 2320 2321 2322 2323 2324
	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
 ------------------------------------------------------------*/
2325 2326 2327 2328 2329 2330
static char *sampleclock_sources[MAX_CLOCKSOURCES] = {
	"N/A", "Local PLL", "Digital Sync", "Word External", "Word Header",
	"SMPTE", "Digital1", "Auto", "Network", "Invalid",
	"Prev Module",
	"Digital2", "Digital3", "Digital4", "Digital5",
	"Digital6", "Digital7", "Digital8"};
2331 2332 2333 2334 2335 2336 2337 2338 2339 2340 2341 2342 2343 2344 2345 2346 2347 2348 2349 2350 2351 2352 2353 2354 2355 2356 2357 2358 2359 2360 2361

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;
2362
	if (hpi_sample_clock_get_source(h_control, &source))
2363 2364 2365
		source = 0;

	if (source == HPI_SAMPLECLOCK_SOURCE_AESEBU_INPUT)
2366
		if (hpi_sample_clock_get_source_index(h_control, &srcindex))
2367 2368 2369 2370 2371 2372 2373 2374 2375 2376 2377 2378 2379 2380 2381 2382 2383 2384 2385 2386 2387 2388 2389 2390 2391 2392
			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;
	int change, item;
	u32 h_control = kcontrol->private_value;

	change = 1;
	item = ucontrol->value.enumerated.item[0];
	if (item >= clkcache->count)
		item = clkcache->count-1;

2393
	hpi_handle_error(hpi_sample_clock_set_source(
2394 2395 2396
				h_control, clkcache->s[item].source));

	if (clkcache->s[item].source == HPI_SAMPLECLOCK_SOURCE_AESEBU_INPUT)
2397
		hpi_handle_error(hpi_sample_clock_set_source_index(
2398 2399 2400 2401 2402 2403 2404 2405 2406 2407 2408 2409 2410 2411 2412 2413 2414 2415 2416 2417 2418 2419 2420 2421 2422 2423 2424
				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;

2425
	e = hpi_sample_clock_get_local_rate(h_control, &rate);
2426 2427 2428 2429 2430 2431 2432 2433 2434 2435 2436 2437 2438 2439 2440 2441 2442
	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;
2443
	hpi_handle_error(hpi_sample_clock_set_local_rate(h_control,
2444 2445 2446 2447 2448 2449 2450 2451 2452 2453 2454 2455 2456 2457 2458 2459 2460 2461 2462 2463 2464 2465 2466
				      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;

2467
	e = hpi_sample_clock_get_sample_rate(h_control, &rate);
2468 2469 2470 2471 2472 2473 2474 2475 2476 2477 2478 2479 2480 2481 2482 2483 2484 2485 2486 2487 2488 2489 2490 2491
	if (!e)
		ucontrol->value.integer.value[0] = rate;
	else
		ucontrol->value.integer.value[0] = 0;
	return 0;
}

static int __devinit snd_asihpi_sampleclock_add(struct snd_card_asihpi *asihpi,
					struct hpi_control *hpi_ctl)
{
	struct snd_card *card = asihpi->card;
	struct snd_kcontrol_new snd_control;

	struct clk_cache *clkcache = &asihpi->cc;
	u32 hSC =  hpi_ctl->h_control;
	int has_aes_in = 0;
	int i, j;
	u16 source;

	snd_control.private_value = hpi_ctl->h_control;

	clkcache->has_local = 0;

	for (i = 0; i <= HPI_SAMPLECLOCK_SOURCE_LAST; i++) {
2492
		if  (hpi_sample_clock_query_source(hSC,
2493 2494 2495 2496 2497 2498 2499 2500 2501 2502 2503 2504 2505
				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++) {
2506
			if (hpi_sample_clock_query_source_index(hSC,
2507 2508 2509 2510 2511 2512 2513 2514 2515 2516 2517 2518
				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;

2519
	asihpi_ctl_init(&snd_control, hpi_ctl, "Source");
2520 2521 2522 2523 2524 2525 2526 2527 2528
	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) {
2529
		asihpi_ctl_init(&snd_control, hpi_ctl, "Localrate");
2530 2531 2532 2533 2534 2535 2536 2537 2538 2539
		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;
	}

2540
	asihpi_ctl_init(&snd_control, hpi_ctl, "Rate");
2541 2542 2543 2544 2545 2546 2547 2548 2549 2550 2551 2552 2553 2554 2555 2556 2557 2558 2559 2560 2561
	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 __devinit snd_card_asihpi_mixer_new(struct snd_card_asihpi *asihpi)
{
	struct snd_card *card = asihpi->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;
2562
	strcpy(card->mixername, "Asihpi Mixer");
2563 2564

	err =
2565
	    hpi_mixer_open(asihpi->adapter_index,
2566 2567 2568 2569 2570
			  &asihpi->h_mixer);
	hpi_handle_error(err);
	if (err)
		return -err;

2571 2572 2573
	memset(&prev_ctl, 0, sizeof(prev_ctl));
	prev_ctl.control_type = -1;

2574 2575
	for (idx = 0; idx < 2000; idx++) {
		err = hpi_mixer_get_control_by_index(
2576
				asihpi->h_mixer,
2577 2578 2579 2580 2581 2582 2583 2584 2585 2586 2587
				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)
					snd_printk(KERN_INFO
2588
						   "Disabled HPI Control(%d)\n",
2589 2590 2591 2592 2593 2594 2595
						   idx);
				continue;
			} else
				break;

		}

2596 2597
		hpi_ctl.src_node_type -= HPI_SOURCENODE_NONE;
		hpi_ctl.dst_node_type -= HPI_DESTNODE_NONE;
2598 2599 2600 2601 2602 2603 2604 2605 2606 2607 2608 2609 2610 2611 2612 2613 2614 2615 2616 2617 2618 2619 2620 2621 2622 2623 2624 2625 2626 2627 2628 2629 2630 2631 2632 2633 2634 2635 2636 2637 2638 2639 2640 2641 2642 2643 2644 2645 2646 2647 2648 2649 2650 2651 2652

		/* 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)
				snd_printk(KERN_INFO
2653
					"Untranslated HPI Control"
2654 2655 2656 2657 2658 2659 2660 2661 2662 2663 2664 2665 2666 2667 2668 2669 2670 2671 2672 2673 2674 2675 2676 2677 2678 2679 2680 2681 2682 2683 2684 2685 2686 2687 2688 2689 2690 2691 2692 2693 2694 2695 2696 2697 2698 2699 2700 2701 2702
					"(%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);

	snd_printk(KERN_INFO "%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;
	u16 version;
	u32 h_control;
	u32 rate = 0;
	u16 source = 0;
	int err;

	snd_iprintf(buffer, "ASIHPI driver proc file\n");
	snd_iprintf(buffer,
		"adapter ID=%4X\n_index=%d\n"
		"num_outstreams=%d\n_num_instreams=%d\n",
		asihpi->type, asihpi->adapter_index,
		asihpi->num_outstreams, asihpi->num_instreams);

	version = asihpi->version;
	snd_iprintf(buffer,
		"serial#=%d\n_hw version %c%d\nDSP code version %03d\n",
		asihpi->serial_number, ((version >> 3) & 0xf) + 'A',
		version & 0x7,
		((version >> 13) * 100) + ((version >> 7) & 0x3f));

2703
	err = hpi_mixer_get_control(asihpi->h_mixer,
2704 2705 2706 2707
				  HPI_SOURCENODE_CLOCK_SOURCE, 0, 0, 0,
				  HPI_CONTROL_SAMPLECLOCK, &h_control);

	if (!err) {
2708
		err = hpi_sample_clock_get_sample_rate(
2709
					h_control, &rate);
2710
		err += hpi_sample_clock_get_source(h_control, &source);
2711 2712 2713 2714 2715 2716 2717 2718 2719 2720 2721 2722 2723 2724 2725 2726 2727 2728 2729 2730 2731 2732 2733 2734 2735 2736 2737 2738 2739 2740 2741 2742 2743 2744 2745 2746 2747 2748 2749 2750 2751 2752 2753 2754 2755 2756 2757 2758 2759 2760 2761 2762 2763 2764 2765 2766 2767 2768 2769 2770 2771 2772 2773 2774 2775 2776 2777 2778 2779 2780 2781 2782 2783 2784 2785 2786 2787 2788 2789 2790 2791 2792 2793 2794 2795 2796 2797 2798 2799 2800 2801 2802 2803 2804 2805 2806 2807 2808 2809 2810 2811 2812 2813 2814 2815 2816 2817 2818 2819 2820 2821 2822 2823 2824 2825 2826 2827 2828 2829 2830 2831

		if (!err)
			snd_iprintf(buffer, "sample_clock=%d_hz, source %s\n",
			rate, sampleclock_sources[source]);
	}

}


static void __devinit 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 __devinit snd_asihpi_hpi_new(struct snd_card_asihpi *asihpi,
	int device, struct snd_hwdep **rhwdep)
{
	struct snd_hwdep *hw;
	int err;

	if (rhwdep)
		*rhwdep = NULL;
	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;
	if (rhwdep)
		*rhwdep = hw;
	return 0;
}

/*------------------------------------------------------------
   CARD
 ------------------------------------------------------------*/
static int __devinit snd_asihpi_probe(struct pci_dev *pci_dev,
				       const struct pci_device_id *pci_id)
{
	int err;

	u16 version;
	int pcm_substreams;

	struct hpi_adapter *hpi_card;
	struct snd_card *card;
	struct snd_card_asihpi *asihpi;

	u32 h_control;
	u32 h_stream;

	static int dev;
	if (dev >= SNDRV_CARDS)
		return -ENODEV;

	/* Should this be enable[hpi_card->index] ? */
	if (!enable[dev]) {
		dev++;
		return -ENOENT;
	}

	err = asihpi_adapter_probe(pci_dev, pci_id);
	if (err < 0)
		return err;

	hpi_card = pci_get_drvdata(pci_dev);
	/* first try to give the card the same index as its hardware index */
	err = snd_card_create(hpi_card->index,
			      id[hpi_card->index], THIS_MODULE,
			      sizeof(struct snd_card_asihpi),
			      &card);
	if (err < 0) {
		/* if that fails, try the default index==next available */
		err =
		    snd_card_create(index[dev], id[dev],
				    THIS_MODULE,
				    sizeof(struct snd_card_asihpi),
				    &card);
		if (err < 0)
			return err;
		snd_printk(KERN_WARNING
2832
			"**** WARNING **** Adapter index %d->ALSA index %d\n",
2833 2834 2835
			hpi_card->index, card->number);
	}

2836 2837
	snd_card_set_dev(card, &pci_dev->dev);

2838 2839
	asihpi = (struct snd_card_asihpi *) card->private_data;
	asihpi->card = card;
2840
	asihpi->pci = pci_dev;
2841
	asihpi->adapter_index = hpi_card->index;
2842
	hpi_handle_error(hpi_adapter_get_info(
2843 2844 2845 2846 2847 2848 2849 2850 2851
				 asihpi->adapter_index,
				 &asihpi->num_outstreams,
				 &asihpi->num_instreams,
				 &asihpi->version,
				 &asihpi->serial_number, &asihpi->type));

	version = asihpi->version;
	snd_printk(KERN_INFO "adapter ID=%4X index=%d num_outstreams=%d "
			"num_instreams=%d S/N=%d\n"
2852
			"Hw Version %c%d DSP code version %03d\n",
2853 2854 2855 2856 2857 2858 2859 2860 2861 2862 2863
			asihpi->type, asihpi->adapter_index,
			asihpi->num_outstreams,
			asihpi->num_instreams, asihpi->serial_number,
			((version >> 3) & 0xf) + 'A',
			version & 0x7,
			((version >> 13) * 100) + ((version >> 7) & 0x3f));

	pcm_substreams = asihpi->num_outstreams;
	if (pcm_substreams < asihpi->num_instreams)
		pcm_substreams = asihpi->num_instreams;

2864
	err = hpi_adapter_get_property(asihpi->adapter_index,
2865 2866 2867 2868 2869
		HPI_ADAPTER_PROPERTY_CAPS1,
		NULL, &asihpi->support_grouping);
	if (err)
		asihpi->support_grouping = 0;

2870
	err = hpi_adapter_get_property(asihpi->adapter_index,
2871 2872 2873 2874 2875
		HPI_ADAPTER_PROPERTY_CAPS2,
		&asihpi->support_mrx, NULL);
	if (err)
		asihpi->support_mrx = 0;

2876
	err = hpi_adapter_get_property(asihpi->adapter_index,
2877 2878 2879 2880 2881
		HPI_ADAPTER_PROPERTY_INTERVAL,
		NULL, &asihpi->update_interval_frames);
	if (err)
		asihpi->update_interval_frames = 512;

2882
	if (!asihpi->can_dma)
2883 2884
		asihpi->update_interval_frames *= 2;

2885
	hpi_handle_error(hpi_instream_open(asihpi->adapter_index,
2886 2887
			     0, &h_stream));

2888
	err = hpi_instream_host_buffer_free(h_stream);
2889
	asihpi->can_dma = (!err);
2890

2891
	hpi_handle_error(hpi_instream_close(h_stream));
2892

2893
	err = hpi_adapter_get_property(asihpi->adapter_index,
2894 2895 2896 2897 2898 2899 2900
		HPI_ADAPTER_PROPERTY_CURCHANNELS,
		&asihpi->in_max_chans, &asihpi->out_max_chans);
	if (err) {
		asihpi->in_max_chans = 2;
		asihpi->out_max_chans = 2;
	}

2901 2902 2903 2904 2905 2906 2907 2908 2909
	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;
	}

2910 2911
	snd_printk(KERN_INFO "has dma:%d, grouping:%d, mrx:%d\n",
			asihpi->can_dma,
2912 2913 2914 2915 2916 2917 2918 2919 2920 2921 2922 2923 2924 2925 2926
			asihpi->support_grouping,
			asihpi->support_mrx
	      );

	err = snd_card_asihpi_pcm_new(asihpi, 0, pcm_substreams);
	if (err < 0) {
		snd_printk(KERN_ERR "pcm_new failed\n");
		goto __nodev;
	}
	err = snd_card_asihpi_mixer_new(asihpi);
	if (err < 0) {
		snd_printk(KERN_ERR "mixer_new failed\n");
		goto __nodev;
	}

2927
	err = hpi_mixer_get_control(asihpi->h_mixer,
2928 2929 2930 2931 2932
				  HPI_SOURCENODE_CLOCK_SOURCE, 0, 0, 0,
				  HPI_CONTROL_SAMPLECLOCK, &h_control);

	if (!err)
		err = hpi_sample_clock_set_local_rate(
2933
			h_control, adapter_fs);
2934 2935 2936 2937 2938 2939 2940

	snd_asihpi_proc_init(asihpi);

	/* always create, can be enabled or disabled dynamically
	    by enable_hwdep  module param*/
	snd_asihpi_hpi_new(asihpi, 0, NULL);

2941
	strcpy(card->driver, "ASIHPI");
2942 2943 2944 2945 2946

	sprintf(card->shortname, "AudioScience ASI%4X", asihpi->type);
	sprintf(card->longname, "%s %i",
			card->shortname, asihpi->adapter_index);
	err = snd_card_register(card);
2947

2948 2949 2950 2951 2952 2953 2954 2955 2956 2957 2958 2959 2960 2961 2962 2963 2964 2965 2966 2967 2968 2969 2970 2971 2972 2973 2974 2975 2976 2977 2978 2979 2980
	if (!err) {
		hpi_card->snd_card_asihpi = card;
		dev++;
		return 0;
	}
__nodev:
	snd_card_free(card);
	snd_printk(KERN_ERR "snd_asihpi_probe error %d\n", err);
	return err;

}

static void __devexit snd_asihpi_remove(struct pci_dev *pci_dev)
{
	struct hpi_adapter *hpi_card = pci_get_drvdata(pci_dev);

	snd_card_free(hpi_card->snd_card_asihpi);
	hpi_card->snd_card_asihpi = NULL;
	asihpi_adapter_remove(pci_dev);
}

static DEFINE_PCI_DEVICE_TABLE(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 = {
2981
	.name = KBUILD_MODNAME,
2982 2983 2984 2985 2986 2987 2988 2989 2990 2991 2992 2993 2994 2995 2996 2997 2998 2999 3000 3001 3002 3003 3004 3005 3006
	.id_table = asihpi_pci_tbl,
	.probe = snd_asihpi_probe,
	.remove = __devexit_p(snd_asihpi_remove),
#ifdef CONFIG_PM
/*	.suspend = snd_asihpi_suspend,
	.resume = snd_asihpi_resume, */
#endif
};

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)