asihpi.c 81.2 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>
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#include <linux/version.h>
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#include <linux/init.h>
#include <linux/jiffies.h>
#include <linux/slab.h>
#include <linux/time.h>
#include <linux/wait.h>
#include <sound/core.h>
#include <sound/control.h>
#include <sound/pcm.h>
#include <sound/pcm_params.h>
#include <sound/info.h>
#include <sound/initval.h>
#include <sound/tlv.h>
#include <sound/hwdep.h>

MODULE_LICENSE("GPL");
MODULE_AUTHOR("AudioScience inc. <support@audioscience.com>");
MODULE_DESCRIPTION("AudioScience ALSA 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)
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/* copied from pcm_lib.c, hope later patch will make that version public
and this copy can be removed */
static void pcm_debug_name(struct snd_pcm_substream *substream,
			   char *name, size_t len)
{
	snprintf(name, len, "pcmC%dD%d%c:%d",
		 substream->pcm->card->number,
		 substream->pcm->device,
		 substream->stream ? 'c' : 'p',
		 substream->number);
}
#define DEBUG_NAME(substream, name) char name[16]; pcm_debug_name(substream, name, sizeof(name))

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#else
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#define snd_printddd(format, args...) do { } while (0)
#define pcm_debug_name(s, n, l) do { } while (0)
#define DEBUG_NAME(name, substream) 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 */
static int enable[SNDRV_CARDS] = SNDRV_DEFAULT_ENABLE_PNP;
static int enable_hpi_hwdep = 1;

module_param_array(index, int, NULL, S_IRUGO);
MODULE_PARM_DESC(index, "ALSA index value for AudioScience soundcard.");

module_param_array(id, charp, NULL, S_IRUGO);
MODULE_PARM_DESC(id, "ALSA ID string for AudioScience soundcard.");

module_param_array(enable, bool, NULL, S_IRUGO);
MODULE_PARM_DESC(enable, "ALSA enable AudioScience soundcard.");

module_param(enable_hpi_hwdep, bool, S_IRUGO|S_IWUSR);
MODULE_PARM_DESC(enable_hpi_hwdep,
		"ALSA enable HPI hwdep for AudioScience soundcard ");

/* identify driver */
#ifdef KERNEL_ALSA_BUILD
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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;

	u16 support_mmap;
	u16 support_grouping;
	u16 support_mrx;
	u16 update_interval_frames;
	u16 in_max_chans;
	u16 out_max_chans;
};

/* 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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	DEBUG_NAME(substream, name);
	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;
	if (card->support_mmap) {

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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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	DEBUG_NAME(substream, name);

	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) &&
				(card->support_mmap)) {
				/* 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);
617
				e = hpi_stream_group_add(
618 619 620 621 622 623 624 625 626 627 628
					dpcm->h_stream,
					ds->h_stream);
				if (!e) {
					snd_pcm_trigger_done(s, substream);
				} else {
					hpi_handle_error(e);
					break;
				}
			} else
				break;
		}
629
		snd_printdd("start\n");
630 631
		/* start the master stream */
		snd_card_asihpi_pcm_timer_start(substream);
632 633
		if ((substream->stream == SNDRV_PCM_STREAM_CAPTURE) ||
			!card->support_mmap)
634
			hpi_handle_error(hpi_stream_start(dpcm->h_stream));
635 636 637 638 639 640 641
		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;
642 643 644
			/* don't link Cap and Play */
			if (substream->stream != s->stream)
				continue;
645 646 647 648 649 650

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

			if (card->support_grouping) {
651
				snd_printdd("%d group\n", s->number);
652 653 654 655
				snd_pcm_trigger_done(s, substream);
			} else
				break;
		}
656
		snd_printdd("stop\n");
657 658

		/* _prepare and _hwparams reset the stream */
659
		hpi_handle_error(hpi_stream_stop(dpcm->h_stream));
660 661
		if (substream->stream == SNDRV_PCM_STREAM_PLAYBACK)
			hpi_handle_error(
662
				hpi_outstream_reset(dpcm->h_stream));
663 664

		if (card->support_grouping)
665
			hpi_handle_error(hpi_stream_group_reset(dpcm->h_stream));
666 667 668
		break;

	case SNDRV_PCM_TRIGGER_PAUSE_RELEASE:
669
		snd_printdd("pause release\n");
670
		hpi_handle_error(hpi_stream_start(dpcm->h_stream));
671 672 673
		snd_card_asihpi_pcm_timer_start(substream);
		break;
	case SNDRV_PCM_TRIGGER_PAUSE_PUSH:
674
		snd_printdd("pause\n");
675
		snd_card_asihpi_pcm_timer_stop(substream);
676
		hpi_handle_error(hpi_stream_stop(dpcm->h_stream));
677 678
		break;
	default:
679
		snd_printd(KERN_ERR "\tINVALID\n");
680 681 682 683 684 685 686 687 688 689 690
		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
*/
/*
691
pcm_buf_dma_ofs=get_buf_pos(s);
692
for_each_linked_stream(s) {
693
	pcm_buf_dma_ofs=get_buf_pos(s);
694
	min_buf_pos = modulo_min(min_buf_pos, pcm_buf_dma_ofs, buffer_bytes)
695
	new_data = min(new_data, calc_new_data(pcm_buf_dma_ofs,irq_pos)
696 697 698
}
timer.expires = jiffies + predict_next_period_ready(min_buf_pos);
for_each_linked_stream(s) {
699
	s->pcm_buf_dma_ofs = min_buf_pos;
700
	if (new_data > period_bytes) {
701
		if (mmap) {
702
			irq_pos = (irq_pos + period_bytes) % buffer_bytes;
703
			if (playback) {
704
				write(period_bytes);
705
			} else {
706
				read(period_bytes);
707 708 709 710 711 712 713 714 715 716 717 718 719 720 721 722 723 724 725 726 727 728 729 730 731 732 733
			}
		}
		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;
734 735
	struct snd_pcm_substream *substream = dpcm->substream;
	struct snd_card_asihpi *card = snd_pcm_substream_chip(substream);
736 737 738
	struct snd_pcm_runtime *runtime;
	struct snd_pcm_substream *s;
	unsigned int newdata = 0;
739
	unsigned int pcm_buf_dma_ofs, min_buf_pos = 0;
740 741
	unsigned int remdata, xfercount, next_jiffies;
	int first = 1;
742
	int loops = 0;
743
	u16 state;
744
	u32 buffer_size, bytes_avail, samples_played, on_card_bytes;
745
	DEBUG_NAME(substream, name);
746

747
	snd_printdd("%s snd_card_asihpi_timer_function\n", name);
748

749
	/* find minimum newdata and buffer pos in group */
750
	snd_pcm_group_for_each_entry(s, substream) {
751 752 753 754 755 756
		struct snd_card_asihpi_pcm *ds = s->runtime->private_data;
		runtime = s->runtime;

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

757 758 759 760 761
		/* don't link Cap and Play */
		if (substream->stream != s->stream)
			continue;

		hpi_handle_error(hpi_stream_get_info_ex(
762
					ds->h_stream, &state,
763 764
					&buffer_size, &bytes_avail,
					&samples_played, &on_card_bytes));
765 766

		/* number of bytes in on-card buffer */
767
		runtime->delay = on_card_bytes;
768

769
		if (s->stream == SNDRV_PCM_STREAM_PLAYBACK) {
770
			pcm_buf_dma_ofs = ds->pcm_buf_host_rw_ofs - bytes_avail;
771 772 773 774
			if (state == HPI_STATE_STOPPED) {
				if ((bytes_avail == 0) &&
				    (on_card_bytes < ds->pcm_buf_host_rw_ofs)) {
					hpi_handle_error(hpi_stream_start(ds->h_stream));
775
					snd_printdd("P%d start\n", s->number);
776
					ds->drained_count = 0;
777 778
				}
			} else if (state == HPI_STATE_DRAINED) {
779
				snd_printd(KERN_WARNING "P%d drained\n",
780
						s->number);
781 782 783 784 785 786 787
				ds->drained_count++;
				if (ds->drained_count > 2) {
					snd_pcm_stop(s, SNDRV_PCM_STATE_XRUN);
					continue;
				}
			} else {
				ds->drained_count = 0;
788 789
			}
		} else
790
			pcm_buf_dma_ofs = bytes_avail + ds->pcm_buf_host_rw_ofs;
791 792 793

		if (first) {
			/* can't statically init min when wrap is involved */
794
			min_buf_pos = pcm_buf_dma_ofs;
795
			newdata = (pcm_buf_dma_ofs - ds->pcm_buf_elapsed_dma_ofs) % ds->buffer_bytes;
796 797 798
			first = 0;
		} else {
			min_buf_pos =
799
				modulo_min(min_buf_pos, pcm_buf_dma_ofs, UINT_MAX+1L);
800
			newdata = min(
801
				(pcm_buf_dma_ofs - ds->pcm_buf_elapsed_dma_ofs) % ds->buffer_bytes,
802 803 804
				newdata);
		}

805
		snd_printdd("hw_ptr 0x%04lX, appl_ptr 0x%04lX\n",
806 807 808 809
			(unsigned long)frames_to_bytes(runtime,
						runtime->status->hw_ptr),
			(unsigned long)frames_to_bytes(runtime,
						runtime->control->appl_ptr));
810

811 812 813 814 815 816
		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,
817
			(int)on_card_bytes, buffer_size-bytes_avail);
818
		loops++;
819
	}
820
	pcm_buf_dma_ofs = min_buf_pos;
821

822 823
	remdata = newdata % dpcm->period_bytes;
	xfercount = newdata - remdata; /* a multiple of period_bytes */
824 825 826 827
	/* come back when on_card_bytes has decreased enough to allow
	   write to happen, or when data has been consumed to make another
	   period
	*/
828 829
	if (xfercount && (on_card_bytes  > dpcm->period_bytes))
		next_jiffies = ((on_card_bytes - dpcm->period_bytes) * HZ / dpcm->bytes_per_sec);
830
	else
831
		next_jiffies = ((dpcm->period_bytes - remdata) * HZ / dpcm->bytes_per_sec);
832 833

	next_jiffies = max(next_jiffies, 1U);
834
	dpcm->timer.expires = jiffies + next_jiffies;
835
	snd_printdd("jif %d buf pos 0x%04X newdata 0x%04X xfer 0x%04X\n",
836 837
			next_jiffies, pcm_buf_dma_ofs, newdata, xfercount);

838
	snd_pcm_group_for_each_entry(s, substream) {
839 840
		struct snd_card_asihpi_pcm *ds = s->runtime->private_data;

841 842 843 844
		/* don't link Cap and Play */
		if (substream->stream != s->stream)
			continue;

845 846
		ds->pcm_buf_dma_ofs = pcm_buf_dma_ofs;

847
		if (xfercount && (on_card_bytes <= ds->period_bytes)) {
848 849
			if (card->support_mmap) {
				if (s->stream == SNDRV_PCM_STREAM_PLAYBACK) {
850
					snd_printddd("P%d write x%04x\n",
851
							s->number,
852
							ds->period_bytes);
853 854
					hpi_handle_error(
						hpi_outstream_write_buf(
855
							ds->h_stream,
856 857 858 859 860
							&s->runtime->
								dma_area[0],
							xfercount,
							&ds->format));
				} else {
861
					snd_printddd("C%d read x%04x\n",
862
						s->number,
863
						xfercount);
864 865
					hpi_handle_error(
						hpi_instream_read_buf(
866
							ds->h_stream,
867 868
							NULL, xfercount));
				}
869
				ds->pcm_buf_host_rw_ofs = ds->pcm_buf_host_rw_ofs + xfercount;
870
			} /* else R/W will be handled by read/write callbacks */
871
			ds->pcm_buf_elapsed_dma_ofs = pcm_buf_dma_ofs;
872 873 874 875 876 877 878 879 880 881 882 883
			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)
{
884
	snd_printddd(KERN_INFO "P%d ioctl %d\n", substream->number, cmd);
885 886 887 888 889 890 891 892 893
	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;

894
	snd_printdd("P%d prepare\n", substream->number);
895

896
	hpi_handle_error(hpi_outstream_reset(dpcm->h_stream));
897 898 899
	dpcm->pcm_buf_host_rw_ofs = 0;
	dpcm->pcm_buf_dma_ofs = 0;
	dpcm->pcm_buf_elapsed_dma_ofs = 0;
900 901 902 903 904 905 906 907 908 909
	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;

910
	ptr = bytes_to_frames(runtime, dpcm->pcm_buf_dma_ofs  % dpcm->buffer_bytes);
911
	snd_printddd("P%d pointer = 0x%04lx\n", substream->number, (unsigned long)ptr);
912 913 914 915 916 917 918 919 920 921 922 923 924 925 926 927
	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
	*/
928
	err = hpi_mixer_get_control(asihpi->h_mixer,
929 930 931 932
				  HPI_SOURCENODE_CLOCK_SOURCE, 0, 0, 0,
				  HPI_CONTROL_SAMPLECLOCK, &h_control);

	if (!err)
933
		err = hpi_sample_clock_get_sample_rate(h_control,
934 935 936 937 938 939 940
				&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)
941
			err = hpi_outstream_query_format(h_stream,
942 943 944 945 946 947 948 949 950 951 952 953 954 955 956 957 958 959 960 961 962 963 964 965 966 967 968 969 970 971
							&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 = {
	.channels_min = 1,
	.channels_max = 2,
	.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 =
972
	    hpi_outstream_open(card->adapter_index,
973 974 975 976 977 978 979 980 981 982 983 984 985 986 987 988 989 990 991 992 993 994 995 996 997 998 999 1000 1001 1002 1003 1004 1005 1006 1007 1008 1009 1010 1011 1012 1013 1014 1015 1016 1017 1018 1019 1020 1021 1022 1023 1024 1025 1026
			      substream->number, &dpcm->h_stream);
	hpi_handle_error(err);
	if (err)
		kfree(dpcm);
	if (err == HPI_ERROR_OBJ_ALREADY_OPEN)
		return -EBUSY;
	if (err)
		return -EIO;

	/*? also check ASI5000 samplerate source
	    If external, only support external rate.
	    If internal and other stream playing, cant switch
	*/

	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;
	/*?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 |
					SNDRV_PCM_INFO_PAUSE;

	if (card->support_mmap)
		snd_card_asihpi_playback.info |= SNDRV_PCM_INFO_MMAP |
						SNDRV_PCM_INFO_MMAP_VALID;

	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;

	if (card->support_mmap)
		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);
1027

1028
	snd_pcm_hw_constraint_minmax(runtime, SNDRV_PCM_HW_PARAM_PERIOD_SIZE,
1029
		card->update_interval_frames * 2, UINT_MAX);
1030 1031 1032

	snd_pcm_set_sync(substream);

1033
	snd_printdd("playback open\n");
1034 1035 1036 1037 1038 1039 1040 1041 1042

	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;

1043
	hpi_handle_error(hpi_outstream_close(dpcm->h_stream));
1044
	snd_printdd("playback close\n");
1045 1046 1047 1048 1049 1050 1051 1052 1053 1054 1055 1056 1057 1058 1059 1060 1061 1062 1063

	return 0;
}

static int snd_card_asihpi_playback_copy(struct snd_pcm_substream *substream,
					int channel,
					snd_pcm_uframes_t pos,
					void __user *src,
					snd_pcm_uframes_t count)
{
	struct snd_pcm_runtime *runtime = substream->runtime;
	struct snd_card_asihpi_pcm *dpcm = runtime->private_data;
	unsigned int len;

	len = frames_to_bytes(runtime, count);

	if (copy_from_user(runtime->dma_area, src, len))
		return -EFAULT;

1064
	snd_printddd("playback copy%d %u bytes\n",
1065 1066
			substream->number, len);

1067
	hpi_handle_error(hpi_outstream_write_buf(dpcm->h_stream,
1068 1069
				runtime->dma_area, len, &dpcm->format));

1070
	dpcm->pcm_buf_host_rw_ofs += len;
1071

1072 1073 1074 1075 1076 1077 1078 1079
	return 0;
}

static int snd_card_asihpi_playback_silence(struct snd_pcm_substream *
					    substream, int channel,
					    snd_pcm_uframes_t pos,
					    snd_pcm_uframes_t count)
{
1080 1081 1082 1083 1084
	/* Usually writes silence to DMA buffer, which should be overwritten
	by real audio later.  Our fifos cannot be overwritten, and are not
	free-running DMAs. Silence is output on fifo underflow.
	This callback is still required to allow the copy callback to be used.
	*/
1085 1086 1087 1088 1089 1090 1091 1092 1093 1094 1095 1096 1097 1098 1099 1100 1101 1102 1103 1104 1105 1106 1107 1108 1109 1110 1111 1112 1113 1114 1115 1116 1117 1118
	return 0;
}

static struct snd_pcm_ops snd_card_asihpi_playback_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,
	.copy = snd_card_asihpi_playback_copy,
	.silence = snd_card_asihpi_playback_silence,
};

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;

1119
	snd_printddd("capture pointer %d=%d\n",
1120 1121
			substream->number, dpcm->pcm_buf_dma_ofs);
	/* NOTE Unlike playback can't use actual samples_played
1122 1123 1124
		for the capture position, because those samples aren't yet in
		the local buffer available for reading.
	*/
1125
	return bytes_to_frames(runtime, dpcm->pcm_buf_dma_ofs % dpcm->buffer_bytes);
1126 1127 1128 1129 1130 1131 1132 1133 1134 1135 1136 1137 1138
}

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;

1139
	hpi_handle_error(hpi_instream_reset(dpcm->h_stream));
1140 1141 1142
	dpcm->pcm_buf_host_rw_ofs = 0;
	dpcm->pcm_buf_dma_ofs = 0;
	dpcm->pcm_buf_elapsed_dma_ofs = 0;
1143

1144
	snd_printdd("Capture Prepare %d\n", substream->number);
1145 1146 1147 1148 1149 1150 1151 1152 1153 1154 1155 1156 1157 1158 1159 1160 1161
	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 */
1162
	err = hpi_mixer_get_control(asihpi->h_mixer,
1163 1164 1165 1166
				  HPI_SOURCENODE_CLOCK_SOURCE, 0, 0, 0,
				  HPI_CONTROL_SAMPLECLOCK, &h_control);

	if (!err)
1167
		err = hpi_sample_clock_get_sample_rate(h_control,
1168 1169 1170 1171 1172 1173 1174 1175
			&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)
1176
			err = hpi_instream_query_format(h_stream,
1177 1178 1179 1180 1181 1182 1183 1184 1185 1186 1187 1188 1189 1190 1191 1192 1193 1194 1195 1196 1197 1198 1199 1200 1201 1202 1203 1204 1205 1206
					    &hpi_format);
		if (!err)
			pcmhw->formats |=
				(1ULL << hpi_to_alsa_formats[format]);
	}
}


static struct snd_pcm_hardware snd_card_asihpi_capture = {
	.channels_min = 1,
	.channels_max = 2,
	.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;

1207
	snd_printdd("capture open adapter %d stream %d\n",
1208 1209 1210
		   card->adapter_index, substream->number);

	err = hpi_handle_error(
1211
	    hpi_instream_open(card->adapter_index,
1212 1213 1214 1215 1216 1217 1218 1219 1220 1221 1222 1223 1224 1225 1226 1227 1228 1229 1230 1231 1232 1233 1234 1235 1236 1237
			     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;
	snd_card_asihpi_capture_format(card, dpcm->h_stream,
				       &snd_card_asihpi_capture);
	snd_card_asihpi_pcm_samplerates(card,  &snd_card_asihpi_capture);
	snd_card_asihpi_capture.info = SNDRV_PCM_INFO_INTERLEAVED;

	if (card->support_mmap)
		snd_card_asihpi_capture.info |= SNDRV_PCM_INFO_MMAP |
						SNDRV_PCM_INFO_MMAP_VALID;

1238 1239 1240
	if (card->support_grouping)
		snd_card_asihpi_capture.info |= SNDRV_PCM_INFO_SYNC_START;

1241 1242 1243 1244 1245 1246 1247 1248 1249 1250 1251 1252 1253 1254 1255 1256 1257 1258 1259 1260 1261 1262
	runtime->hw = snd_card_asihpi_capture;

	if (card->support_mmap)
		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;

1263
	hpi_handle_error(hpi_instream_close(dpcm->h_stream));
1264 1265 1266 1267 1268 1269 1270 1271 1272
	return 0;
}

static int snd_card_asihpi_capture_copy(struct snd_pcm_substream *substream,
				int channel, snd_pcm_uframes_t pos,
				void __user *dst, snd_pcm_uframes_t count)
{
	struct snd_pcm_runtime *runtime = substream->runtime;
	struct snd_card_asihpi_pcm *dpcm = runtime->private_data;
1273
	u32 len;
1274

1275
	len = frames_to_bytes(runtime, count);
1276

1277
	snd_printddd("capture copy%d %d bytes\n", substream->number, len);
1278
	hpi_handle_error(hpi_instream_read_buf(dpcm->h_stream,
1279
				runtime->dma_area, len));
1280

1281
	dpcm->pcm_buf_host_rw_ofs = dpcm->pcm_buf_host_rw_ofs + len;
1282

1283
	if (copy_to_user(dst, runtime->dma_area, len))
1284 1285 1286 1287 1288 1289 1290 1291 1292 1293 1294 1295 1296 1297 1298 1299 1300 1301 1302 1303 1304 1305 1306 1307 1308 1309 1310 1311 1312 1313 1314 1315 1316 1317
		return -EFAULT;

	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 struct snd_pcm_ops snd_card_asihpi_capture_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,
	.copy = snd_card_asihpi_capture_copy
};

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

1318
	err = snd_pcm_new(asihpi->card, "Asihpi PCM", device,
1319 1320 1321 1322 1323 1324 1325 1326 1327 1328 1329 1330 1331 1332 1333 1334 1335 1336 1337
			 asihpi->num_outstreams, asihpi->num_instreams,
			 &pcm);
	if (err < 0)
		return err;
	/* pointer to ops struct is stored, dont change ops afterwards! */
	if (asihpi->support_mmap) {
		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);
	} else {
		snd_pcm_set_ops(pcm, SNDRV_PCM_STREAM_PLAYBACK,
				&snd_card_asihpi_playback_ops);
		snd_pcm_set_ops(pcm, SNDRV_PCM_STREAM_CAPTURE,
				&snd_card_asihpi_capture_ops);
	}

	pcm->private_data = asihpi;
	pcm->info_flags = 0;
1338
	strcpy(pcm->name, "Asihpi PCM");
1339 1340 1341 1342 1343 1344 1345 1346 1347 1348 1349 1350 1351 1352 1353 1354 1355 1356 1357 1358 1359 1360

	/*? 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]; */
};

1361
static const char * const asihpi_tuner_band_names[] = {
1362 1363 1364 1365 1366 1367 1368 1369 1370 1371 1372 1373 1374 1375 1376 1377 1378
	"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);

1379
static const char * const asihpi_src_names[] = {
1380
	"no source",
1381 1382 1383 1384
	"PCM",
	"Line",
	"Digital",
	"Tuner",
1385
	"RF",
1386 1387 1388 1389 1390 1391
	"Clock",
	"Bitstream",
	"Microphone",
	"Cobranet",
	"Analog",
	"Adapter",
1392 1393 1394 1395
};

compile_time_assert(
	(ARRAY_SIZE(asihpi_src_names) ==
1396
		(HPI_SOURCENODE_LAST_INDEX-HPI_SOURCENODE_NONE+1)),
1397 1398
	assert_src_names_size);

1399
static const char * const asihpi_dst_names[] = {
1400
	"no destination",
1401 1402 1403
	"PCM",
	"Line",
	"Digital",
1404
	"RF",
1405 1406 1407
	"Speaker",
	"Cobranet Out",
	"Analog"
1408 1409 1410 1411
};

compile_time_assert(
	(ARRAY_SIZE(asihpi_dst_names) ==
1412
		(HPI_DESTNODE_LAST_INDEX-HPI_DESTNODE_NONE+1)),
1413 1414 1415 1416 1417 1418 1419 1420 1421 1422 1423 1424 1425 1426 1427 1428 1429 1430 1431 1432 1433
	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)
{
1434
	char *dir;
1435 1436 1437 1438 1439 1440
	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;

1441 1442 1443
	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)
1444 1445 1446 1447
		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 */
1448 1449
	else if (hpi_ctl->src_node_type &&
		(hpi_ctl->src_node_type + HPI_SOURCENODE_NONE != HPI_SOURCENODE_OSTREAM) &&
1450 1451 1452 1453 1454
		(hpi_ctl->dst_node_type))
		dir = "Monitor Playback "; /* Between an input and an output */
	else
		dir = "Playback "; /* PCM Playback source, or  output node */

1455
	if (hpi_ctl->src_node_type && hpi_ctl->dst_node_type)
1456
		sprintf(hpi_ctl->name, "%s %d %s %d %s%s",
1457 1458 1459 1460
			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,
1461
			dir, name);
1462
	else if (hpi_ctl->dst_node_type) {
1463
		sprintf(hpi_ctl->name, "%s %d %s%s",
1464 1465
		asihpi_dst_names[hpi_ctl->dst_node_type],
		hpi_ctl->dst_node_index,
1466
		dir, name);
1467
	} else {
1468
		sprintf(hpi_ctl->name, "%s %d %s%s",
1469 1470
		asihpi_src_names[hpi_ctl->src_node_type],
		hpi_ctl->src_node_index,
1471
		dir, name);
1472
	}
1473 1474
	/* printk(KERN_INFO "Adding %s %d to %d ",  hpi_ctl->name,
		hpi_ctl->wSrcNodeType, hpi_ctl->wDstNodeType); */
1475 1476 1477 1478 1479 1480 1481 1482 1483 1484 1485 1486 1487 1488 1489 1490
}

/*------------------------------------------------------------
   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;
	u16 err;
	/* native gains are in millibels */
	short min_gain_mB;
	short max_gain_mB;
	short step_gain_mB;

1491
	err = hpi_volume_query_range(h_control,
1492 1493 1494 1495 1496 1497 1498 1499 1500 1501 1502 1503 1504 1505 1506 1507 1508 1509 1510 1511 1512
			&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;
	}

	uinfo->type = SNDRV_CTL_ELEM_TYPE_INTEGER;
	uinfo->count = 2;
	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];

1513
	hpi_handle_error(hpi_volume_get_gain(h_control, an_gain_mB));
1514 1515 1516 1517 1518 1519 1520 1521 1522 1523 1524 1525 1526 1527 1528 1529 1530 1531 1532 1533 1534
	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;
1535
	hpi_handle_error(hpi_volume_set_gain(h_control, an_gain_mB));
1536 1537 1538 1539 1540 1541 1542 1543 1544 1545 1546
	return change;
}

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

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;

1547
	asihpi_ctl_init(&snd_control, hpi_ctl, "Volume");
1548 1549 1550 1551 1552 1553 1554 1555 1556 1557 1558 1559 1560 1561 1562 1563 1564 1565 1566 1567 1568 1569 1570
	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;

	return ctl_add(card, &snd_control, asihpi);
}

/*------------------------------------------------------------
   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 =
1571
	    hpi_level_query_range(h_control, &min_gain_mB,
1572 1573 1574 1575 1576 1577 1578 1579 1580 1581 1582 1583 1584 1585 1586 1587 1588 1589 1590 1591 1592
			       &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];

1593
	hpi_handle_error(hpi_level_get_gain(h_control, an_gain_mB));
1594 1595 1596 1597 1598 1599 1600 1601 1602 1603 1604 1605 1606 1607 1608 1609 1610 1611 1612 1613 1614 1615 1616
	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;
1617
	hpi_handle_error(hpi_level_set_gain(h_control, an_gain_mB));
1618 1619 1620 1621 1622 1623 1624 1625 1626 1627 1628 1629
	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 */
1630
	asihpi_ctl_init(&snd_control, hpi_ctl, "Level");
1631 1632 1633 1634 1635 1636 1637 1638 1639 1640 1641 1642 1643 1644 1645
	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 */
1646 1647
static const char * const asihpi_aesebu_format_names[] = {
	"N/A", "S/PDIF", "AES/EBU" };
1648 1649 1650 1651 1652 1653 1654 1655 1656 1657 1658 1659 1660 1661 1662 1663 1664 1665 1666 1667

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,
1668
			u16 (*func)(u32, u16 *))
1669 1670 1671 1672
{
	u32 h_control = kcontrol->private_value;
	u16 source, err;

1673
	err = func(h_control, &source);
1674 1675 1676 1677 1678 1679 1680 1681 1682 1683 1684 1685 1686 1687 1688 1689

	/* 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,
1690
			 u16 (*func)(u32, u16))
1691 1692 1693 1694 1695 1696 1697 1698 1699 1700 1701
{
	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;

1702
	if (func(h_control, source) != 0)
1703 1704 1705 1706 1707 1708 1709 1710
		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,
1711
					hpi_aesebu_receiver_get_format);
1712 1713 1714 1715 1716
}

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,
1717
					hpi_aesebu_receiver_set_format);
1718 1719 1720 1721 1722 1723 1724 1725 1726 1727 1728 1729 1730 1731 1732 1733 1734 1735 1736 1737 1738
}

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;

1739 1740
	hpi_handle_error(hpi_aesebu_receiver_get_error_status(
					 h_control, &status));
1741 1742 1743 1744 1745 1746 1747 1748 1749 1750
	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;

1751
	asihpi_ctl_init(&snd_control, hpi_ctl, "Format");
1752 1753 1754 1755 1756 1757 1758 1759 1760
	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;

1761
	asihpi_ctl_init(&snd_control, hpi_ctl, "Status");
1762 1763 1764 1765 1766 1767 1768 1769 1770 1771 1772
	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,
1773
					hpi_aesebu_transmitter_get_format);
1774 1775 1776 1777 1778
}

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,
1779
					hpi_aesebu_transmitter_set_format);
1780 1781 1782 1783 1784 1785 1786 1787 1788
}


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;

1789
	asihpi_ctl_init(&snd_control, hpi_ctl, "Format");
1790 1791 1792 1793 1794 1795 1796 1797 1798 1799 1800 1801 1802 1803 1804 1805 1806 1807 1808 1809 1810 1811 1812
	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++) {
1813
		err = hpi_tuner_query_gain(h_control,
1814 1815 1816 1817 1818 1819 1820 1821 1822 1823 1824 1825 1826 1827 1828 1829 1830 1831 1832 1833 1834 1835
					  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;

1836
	hpi_handle_error(hpi_tuner_get_gain(h_control, &gain));
1837 1838 1839 1840 1841 1842 1843 1844 1845 1846 1847 1848 1849 1850 1851
	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;
1852
	hpi_handle_error(hpi_tuner_set_gain(h_control, gain));
1853 1854 1855 1856 1857 1858 1859 1860 1861 1862 1863 1864 1865

	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++) {
1866
		err = hpi_tuner_query_band(
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 1899 1900 1901 1902 1903 1904 1905 1906 1907 1908 1909 1910 1911 1912 1913 1914 1915 1916 1917 1918 1919 1920 1921
				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);

1922
	hpi_handle_error(hpi_tuner_get_band(h_control, &band));
1923 1924 1925 1926 1927 1928 1929 1930 1931 1932 1933 1934 1935 1936 1937 1938 1939 1940 1941 1942 1943 1944 1945 1946 1947 1948

	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]];
1949
	hpi_handle_error(hpi_tuner_set_band(h_control, band));
1950 1951 1952 1953 1954 1955 1956 1957 1958 1959 1960 1961 1962 1963 1964 1965 1966 1967 1968 1969 1970 1971 1972 1973

	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++) {
1974
			err = hpi_tuner_query_frequency(h_control,
1975 1976 1977 1978 1979 1980 1981 1982 1983 1984 1985 1986 1987 1988 1989 1990 1991 1992 1993 1994 1995 1996 1997 1998 1999 2000 2001 2002 2003 2004 2005 2006
				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;

2007
	hpi_handle_error(hpi_tuner_get_frequency(h_control, &freq));
2008 2009 2010 2011 2012 2013 2014 2015 2016 2017 2018 2019
	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];
2020
	hpi_handle_error(hpi_tuner_set_frequency(h_control, freq));
2021 2022 2023 2024 2025 2026 2027 2028 2029 2030 2031 2032 2033 2034

	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;

2035
	if (!hpi_tuner_get_gain(hpi_ctl->h_control, NULL)) {
2036
		asihpi_ctl_init(&snd_control, hpi_ctl, "Gain");
2037 2038 2039 2040 2041 2042 2043 2044
		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;
	}

2045
	asihpi_ctl_init(&snd_control, hpi_ctl, "Band");
2046 2047 2048 2049 2050 2051 2052
	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;

2053
	asihpi_ctl_init(&snd_control, hpi_ctl, "Freq");
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 2088 2089 2090 2091 2092 2093 2094 2095 2096 2097 2098 2099 2100 2101 2102 2103
	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)
{
	uinfo->type = SNDRV_CTL_ELEM_TYPE_INTEGER;
	uinfo->count = HPI_MAX_CHANNELS;
	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;

2104
	err = hpi_meter_get_peak(h_control, an_gain_mB);
2105 2106 2107 2108 2109 2110 2111 2112 2113 2114 2115 2116 2117 2118 2119 2120 2121 2122 2123 2124 2125 2126 2127 2128

	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;

2129
	asihpi_ctl_init(&snd_control, hpi_ctl, "Meter");
2130 2131 2132 2133 2134 2135 2136 2137 2138 2139 2140 2141 2142 2143 2144 2145 2146 2147 2148
	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++) {
2149
		err = hpi_multiplexer_query_source(h_control, s,
2150 2151 2152 2153 2154 2155 2156 2157 2158 2159 2160 2161 2162 2163 2164 2165 2166 2167 2168 2169 2170 2171 2172 2173 2174 2175 2176
						  &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 =
2177
	    hpi_multiplexer_query_source(h_control,
2178 2179 2180 2181
					uinfo->value.enumerated.item,
					&src_node_type, &src_node_index);

	sprintf(uinfo->value.enumerated.name, "%s %d",
2182
		asihpi_src_names[src_node_type - HPI_SOURCENODE_NONE],
2183 2184 2185 2186 2187 2188 2189 2190 2191 2192 2193 2194
		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;

2195
	hpi_handle_error(hpi_multiplexer_get_source(h_control,
2196 2197 2198
				&source_type, &source_index));
	/* Should cache this search result! */
	for (s = 0; s < 256; s++) {
2199
		if (hpi_multiplexer_query_source(h_control, s,
2200 2201 2202 2203 2204 2205 2206 2207 2208 2209
					    &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
2210
		"Control %x failed to match mux source %hu %hu\n",
2211 2212 2213 2214 2215 2216 2217 2218 2219 2220 2221 2222 2223 2224 2225
		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;

2226
	e = hpi_multiplexer_query_source(h_control,
2227 2228 2229 2230
				    ucontrol->value.enumerated.item[0],
				    &source_type, &source_index);
	if (!e)
		hpi_handle_error(
2231
			hpi_multiplexer_set_source(h_control,
2232 2233 2234 2235 2236 2237 2238 2239 2240 2241 2242
						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;

2243
	asihpi_ctl_init(&snd_control, hpi_ctl, "Route");
2244 2245 2246 2247 2248 2249 2250 2251 2252 2253 2254 2255 2256 2257 2258
	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)
{
2259 2260 2261 2262 2263
	static const char * const mode_names[HPI_CHANNEL_MODE_LAST + 1] = {
		"invalid",
		"Normal", "Swap",
		"From Left", "From Right",
		"To Left", "To Right"
2264 2265 2266 2267 2268
	};

	u32 h_control = kcontrol->private_value;
	u16 mode;
	int i;
2269 2270
	u16 mode_map[6];
	int valid_modes = 0;
2271 2272 2273 2274 2275

	/* 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++)
2276
		if (!hpi_channel_mode_query_mode(
2277
			h_control, i, &mode)) {
2278 2279 2280
			mode_map[valid_modes] = mode;
			valid_modes++;
			}
2281 2282 2283

	uinfo->type = SNDRV_CTL_ELEM_TYPE_ENUMERATED;
	uinfo->count = 1;
2284
	uinfo->value.enumerated.items = valid_modes;
2285

2286 2287
	if (uinfo->value.enumerated.item >= valid_modes)
		uinfo->value.enumerated.item = valid_modes - 1;
2288 2289

	strcpy(uinfo->value.enumerated.name,
2290
	       mode_names[mode_map[uinfo->value.enumerated.item]]);
2291 2292 2293 2294 2295 2296 2297 2298 2299 2300

	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;

2301
	if (hpi_channel_mode_get(h_control, &mode))
2302 2303 2304 2305 2306 2307 2308 2309 2310 2311 2312 2313 2314 2315 2316
		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;

2317
	hpi_handle_error(hpi_channel_mode_set(h_control,
2318 2319 2320 2321 2322 2323 2324 2325 2326 2327 2328
			   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;

2329
	asihpi_ctl_init(&snd_control, hpi_ctl, "Mode");
2330 2331 2332 2333 2334 2335 2336 2337 2338 2339 2340
	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
 ------------------------------------------------------------*/
2341 2342 2343 2344 2345 2346
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"};
2347 2348 2349 2350 2351 2352 2353 2354 2355 2356 2357 2358 2359 2360 2361 2362 2363 2364 2365 2366 2367 2368 2369 2370 2371 2372 2373 2374 2375 2376 2377

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;
2378
	if (hpi_sample_clock_get_source(h_control, &source))
2379 2380 2381
		source = 0;

	if (source == HPI_SAMPLECLOCK_SOURCE_AESEBU_INPUT)
2382
		if (hpi_sample_clock_get_source_index(h_control, &srcindex))
2383 2384 2385 2386 2387 2388 2389 2390 2391 2392 2393 2394 2395 2396 2397 2398 2399 2400 2401 2402 2403 2404 2405 2406 2407 2408
			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;

2409
	hpi_handle_error(hpi_sample_clock_set_source(
2410 2411 2412
				h_control, clkcache->s[item].source));

	if (clkcache->s[item].source == HPI_SAMPLECLOCK_SOURCE_AESEBU_INPUT)
2413
		hpi_handle_error(hpi_sample_clock_set_source_index(
2414 2415 2416 2417 2418 2419 2420 2421 2422 2423 2424 2425 2426 2427 2428 2429 2430 2431 2432 2433 2434 2435 2436 2437 2438 2439 2440
				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;

2441
	e = hpi_sample_clock_get_local_rate(h_control, &rate);
2442 2443 2444 2445 2446 2447 2448 2449 2450 2451 2452 2453 2454 2455 2456 2457 2458
	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;
2459
	hpi_handle_error(hpi_sample_clock_set_local_rate(h_control,
2460 2461 2462 2463 2464 2465 2466 2467 2468 2469 2470 2471 2472 2473 2474 2475 2476 2477 2478 2479 2480 2481 2482
				      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;

2483
	e = hpi_sample_clock_get_sample_rate(h_control, &rate);
2484 2485 2486 2487 2488 2489 2490 2491 2492 2493 2494 2495 2496 2497 2498 2499 2500 2501 2502 2503 2504 2505 2506 2507
	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++) {
2508
		if  (hpi_sample_clock_query_source(hSC,
2509 2510 2511 2512 2513 2514 2515 2516 2517 2518 2519 2520 2521
				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++) {
2522
			if (hpi_sample_clock_query_source_index(hSC,
2523 2524 2525 2526 2527 2528 2529 2530 2531 2532 2533 2534
				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;

2535
	asihpi_ctl_init(&snd_control, hpi_ctl, "Source");
2536 2537 2538 2539 2540 2541 2542 2543 2544
	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) {
2545
		asihpi_ctl_init(&snd_control, hpi_ctl, "Localrate");
2546 2547 2548 2549 2550 2551 2552 2553 2554 2555
		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;
	}

2556
	asihpi_ctl_init(&snd_control, hpi_ctl, "Rate");
2557 2558 2559 2560 2561 2562 2563 2564 2565 2566 2567 2568 2569 2570 2571 2572 2573 2574 2575 2576 2577
	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;
2578
	strcpy(card->mixername, "Asihpi Mixer");
2579 2580

	err =
2581
	    hpi_mixer_open(asihpi->adapter_index,
2582 2583 2584 2585 2586
			  &asihpi->h_mixer);
	hpi_handle_error(err);
	if (err)
		return -err;

2587 2588 2589
	memset(&prev_ctl, 0, sizeof(prev_ctl));
	prev_ctl.control_type = -1;

2590 2591
	for (idx = 0; idx < 2000; idx++) {
		err = hpi_mixer_get_control_by_index(
2592
				asihpi->h_mixer,
2593 2594 2595 2596 2597 2598 2599 2600 2601 2602 2603
				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
2604
						   "Disabled HPI Control(%d)\n",
2605 2606 2607 2608 2609 2610 2611
						   idx);
				continue;
			} else
				break;

		}

2612 2613
		hpi_ctl.src_node_type -= HPI_SOURCENODE_NONE;
		hpi_ctl.dst_node_type -= HPI_DESTNODE_NONE;
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 2653 2654 2655 2656 2657 2658 2659 2660 2661 2662 2663 2664 2665 2666 2667 2668

		/* 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
2669
					"Untranslated HPI Control"
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 2703 2704 2705 2706 2707 2708 2709 2710 2711 2712 2713 2714 2715 2716 2717 2718
					"(%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));

2719
	err = hpi_mixer_get_control(asihpi->h_mixer,
2720 2721 2722 2723
				  HPI_SOURCENODE_CLOCK_SOURCE, 0, 0, 0,
				  HPI_CONTROL_SAMPLECLOCK, &h_control);

	if (!err) {
2724
		err = hpi_sample_clock_get_sample_rate(
2725
					h_control, &rate);
2726
		err += hpi_sample_clock_get_source(h_control, &source);
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 2832 2833 2834 2835 2836 2837 2838 2839 2840 2841 2842 2843 2844 2845 2846 2847

		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
2848
			"**** WARNING **** Adapter index %d->ALSA index %d\n",
2849 2850 2851
			hpi_card->index, card->number);
	}

2852 2853
	snd_card_set_dev(card, &pci_dev->dev);

2854 2855
	asihpi = (struct snd_card_asihpi *) card->private_data;
	asihpi->card = card;
2856
	asihpi->pci = pci_dev;
2857
	asihpi->adapter_index = hpi_card->index;
2858
	hpi_handle_error(hpi_adapter_get_info(
2859 2860 2861 2862 2863 2864 2865 2866 2867
				 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"
2868
			"Hw Version %c%d DSP code version %03d\n",
2869 2870 2871 2872 2873 2874 2875 2876 2877 2878 2879
			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;

2880
	err = hpi_adapter_get_property(asihpi->adapter_index,
2881 2882 2883 2884 2885
		HPI_ADAPTER_PROPERTY_CAPS1,
		NULL, &asihpi->support_grouping);
	if (err)
		asihpi->support_grouping = 0;

2886
	err = hpi_adapter_get_property(asihpi->adapter_index,
2887 2888 2889 2890 2891
		HPI_ADAPTER_PROPERTY_CAPS2,
		&asihpi->support_mrx, NULL);
	if (err)
		asihpi->support_mrx = 0;

2892
	err = hpi_adapter_get_property(asihpi->adapter_index,
2893 2894 2895 2896 2897
		HPI_ADAPTER_PROPERTY_INTERVAL,
		NULL, &asihpi->update_interval_frames);
	if (err)
		asihpi->update_interval_frames = 512;

2898 2899 2900
	if (!asihpi->support_mmap)
		asihpi->update_interval_frames *= 2;

2901
	hpi_handle_error(hpi_instream_open(asihpi->adapter_index,
2902 2903
			     0, &h_stream));

2904
	err = hpi_instream_host_buffer_free(h_stream);
2905 2906
	asihpi->support_mmap = (!err);

2907
	hpi_handle_error(hpi_instream_close(h_stream));
2908

2909
	err = hpi_adapter_get_property(asihpi->adapter_index,
2910 2911 2912 2913 2914 2915 2916 2917 2918 2919 2920 2921 2922 2923 2924 2925 2926 2927 2928 2929 2930 2931 2932 2933
		HPI_ADAPTER_PROPERTY_CURCHANNELS,
		&asihpi->in_max_chans, &asihpi->out_max_chans);
	if (err) {
		asihpi->in_max_chans = 2;
		asihpi->out_max_chans = 2;
	}

	snd_printk(KERN_INFO "supports mmap:%d grouping:%d mrx:%d\n",
			asihpi->support_mmap,
			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;
	}

2934
	err = hpi_mixer_get_control(asihpi->h_mixer,
2935 2936 2937 2938 2939
				  HPI_SOURCENODE_CLOCK_SOURCE, 0, 0, 0,
				  HPI_CONTROL_SAMPLECLOCK, &h_control);

	if (!err)
		err = hpi_sample_clock_set_local_rate(
2940
			h_control, adapter_fs);
2941 2942 2943 2944 2945 2946 2947 2948 2949 2950 2951 2952 2953 2954 2955 2956

	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);

	if (asihpi->support_mmap)
		strcpy(card->driver, "ASIHPI-MMAP");
	else
		strcpy(card->driver, "ASIHPI");

	sprintf(card->shortname, "AudioScience ASI%4X", asihpi->type);
	sprintf(card->longname, "%s %i",
			card->shortname, asihpi->adapter_index);
	err = snd_card_register(card);
2957

2958 2959 2960 2961 2962 2963 2964 2965 2966 2967 2968 2969 2970 2971 2972 2973 2974 2975 2976 2977 2978 2979 2980 2981 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 3007 3008 3009 3010 3011 3012 3013 3014 3015 3016
	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 = {
	.name = "asihpi",
	.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)