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Commit 24c8d141 authored by Vinod Koul's avatar Vinod Koul Committed by Mark Brown
Browse files

ASoC: Intel: mrfld: add DSP core controls 



This patch adds core controls like interleavers, SSP BEs, and also
logic of sending pipeline and module commands to the DSP.

Signed-off-by: default avatarVinod Koul <vinod.koul@intel.com>
Signed-off-by: default avatarSubhransu S. Prusty <subhransu.s.prusty@intel.com>
Signed-off-by: default avatarMark Brown <broonie@kernel.org>
parent 4fa80573

sound/soc/intel/sst-atom-controls.c

+754 −0
Original line number Diff line number Diff line
@@ -15,6 +15,9 @@ 
 *  MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU

 *  General Public License for more details.

 *

 *  In the dpcm driver modelling when a particular FE/BE/Mixer/Pipe is active

 *  we forward the settings and parameters, rest we keep the values  in

 *  driver and forward when DAPM enables them

 * ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~

 */

#define pr_fmt(fmt) KBUILD_MODNAME ": " fmt
@@ -81,6 +84,183 @@ static int sst_fill_and_send_cmd(struct sst_data *drv, 
	return ret;

}



/**

 * tx map value is a bitfield where each bit represents a FW channel

 *

 *			3 2 1 0		# 0 = codec0, 1 = codec1

 *			RLRLRLRL	# 3, 4 = reserved

 *

 * e.g. slot 0 rx map =	00001100b -> data from slot 0 goes into codec_in1 L,R

 */

static u8 sst_ssp_tx_map[SST_MAX_TDM_SLOTS] = {

	0x1, 0x2, 0x4, 0x8, 0x10, 0x20, 0x40, 0x80, /* default rx map */

};



/**

 * rx map value is a bitfield where each bit represents a slot

 *

 *			  76543210	# 0 = slot 0, 1 = slot 1

 *

 * e.g. codec1_0 tx map = 00000101b -> data from codec_out1_0 goes into slot 0, 2

 */

static u8 sst_ssp_rx_map[SST_MAX_TDM_SLOTS] = {

	0x1, 0x2, 0x4, 0x8, 0x10, 0x20, 0x40, 0x80, /* default tx map */

};



/**

 * NOTE: this is invoked with lock held

 */

static int sst_send_slot_map(struct sst_data *drv)

{

	struct sst_param_sba_ssp_slot_map cmd;



	SST_FILL_DEFAULT_DESTINATION(cmd.header.dst);

	cmd.header.command_id = SBA_SET_SSP_SLOT_MAP;

	cmd.header.length = sizeof(struct sst_param_sba_ssp_slot_map)

				- sizeof(struct sst_dsp_header);



	cmd.param_id = SBA_SET_SSP_SLOT_MAP;

	cmd.param_len = sizeof(cmd.rx_slot_map) + sizeof(cmd.tx_slot_map)

					+ sizeof(cmd.ssp_index);

	cmd.ssp_index = SSP_CODEC;



	memcpy(cmd.rx_slot_map, &sst_ssp_tx_map[0], sizeof(cmd.rx_slot_map));

	memcpy(cmd.tx_slot_map, &sst_ssp_rx_map[0], sizeof(cmd.tx_slot_map));



	return sst_fill_and_send_cmd_unlocked(drv, SST_IPC_IA_SET_PARAMS,

			SST_FLAG_BLOCKED, SST_TASK_SBA, 0, &cmd,

			      sizeof(cmd.header) + cmd.header.length);

}



int sst_slot_enum_info(struct snd_kcontrol *kcontrol,

		       struct snd_ctl_elem_info *uinfo)

{

	struct sst_enum *e = (struct sst_enum *)kcontrol->private_value;



	uinfo->type = SNDRV_CTL_ELEM_TYPE_ENUMERATED;

	uinfo->count = 1;

	uinfo->value.enumerated.items = e->max;



	if (uinfo->value.enumerated.item > e->max - 1)

		uinfo->value.enumerated.item = e->max - 1;

	strcpy(uinfo->value.enumerated.name,

		e->texts[uinfo->value.enumerated.item]);



	return 0;

}



/**

 * sst_slot_get - get the status of the interleaver/deinterleaver control

 *

 * Searches the map where the control status is stored, and gets the

 * channel/slot which is currently set for this enumerated control. Since it is

 * an enumerated control, there is only one possible value.

 */

static int sst_slot_get(struct snd_kcontrol *kcontrol,

			struct snd_ctl_elem_value *ucontrol)

{

	struct sst_enum *e = (void *)kcontrol->private_value;

	struct snd_soc_component *c = snd_kcontrol_chip(kcontrol);

	struct sst_data *drv = snd_soc_component_get_drvdata(c);

	unsigned int ctl_no = e->reg;

	unsigned int is_tx = e->tx;

	unsigned int val, mux;

	u8 *map = is_tx ? sst_ssp_rx_map : sst_ssp_tx_map;



	mutex_lock(&drv->lock);

	val = 1 << ctl_no;

	/* search which slot/channel has this bit set - there should be only one */

	for (mux = e->max; mux > 0;  mux--)

		if (map[mux - 1] & val)

			break;



	ucontrol->value.enumerated.item[0] = mux;

	mutex_unlock(&drv->lock);



	dev_dbg(c->dev, "%s - %s map = %#x\n",

			is_tx ? "tx channel" : "rx slot",

			 e->texts[mux], mux ? map[mux - 1] : -1);

	return 0;

}



/* sst_check_and_send_slot_map - helper for checking power state and sending

 * slot map cmd

 *

 * called with lock held

 */

static int sst_check_and_send_slot_map(struct sst_data *drv, struct snd_kcontrol *kcontrol)

{

	struct sst_enum *e = (void *)kcontrol->private_value;

	int ret = 0;



	if (e->w && e->w->power)

		ret = sst_send_slot_map(drv);

	else

		dev_err(&drv->pdev->dev, "Slot control: %s doesn't have DAPM widget!!!\n",

				kcontrol->id.name);

	return ret;

}



/**

 * sst_slot_put - set the status of interleaver/deinterleaver control

 *

 * (de)interleaver controls are defined in opposite sense to be user-friendly

 *

 * Instead of the enum value being the value written to the register, it is the

 * register address; and the kcontrol number (register num) is the value written

 * to the register. This is so that there can be only one value for each

 * slot/channel since there is only one control for each slot/channel.

 *

 * This means that whenever an enum is set, we need to clear the bit

 * for that kcontrol_no for all the interleaver OR deinterleaver registers

 */

static int sst_slot_put(struct snd_kcontrol *kcontrol,

			struct snd_ctl_elem_value *ucontrol)

{

	struct snd_soc_component *c = snd_soc_kcontrol_component(kcontrol);

	struct sst_data *drv = snd_soc_component_get_drvdata(c);

	struct sst_enum *e = (void *)kcontrol->private_value;

	int i, ret = 0;

	unsigned int ctl_no = e->reg;

	unsigned int is_tx = e->tx;

	unsigned int slot_channel_no;

	unsigned int val, mux;

	u8 *map;



	map = is_tx ? sst_ssp_rx_map : sst_ssp_tx_map;



	val = 1 << ctl_no;

	mux = ucontrol->value.enumerated.item[0];

	if (mux > e->max - 1)

		return -EINVAL;



	mutex_lock(&drv->lock);

	/* first clear all registers of this bit */

	for (i = 0; i < e->max; i++)

		map[i] &= ~val;



	if (mux == 0) {

		/* kctl set to 'none' and we reset the bits so send IPC */

		ret = sst_check_and_send_slot_map(drv, kcontrol);



		mutex_unlock(&drv->lock);

		return ret;

	}



	/* offset by one to take "None" into account */

	slot_channel_no = mux - 1;

	map[slot_channel_no] |= val;



	dev_dbg(c->dev, "%s %s map = %#x\n",

			is_tx ? "tx channel" : "rx slot",

			e->texts[mux], map[slot_channel_no]);



	ret = sst_check_and_send_slot_map(drv, kcontrol);



	mutex_unlock(&drv->lock);

	return ret;

}



static int sst_send_algo_cmd(struct sst_data *drv,

			      struct sst_algo_control *bc)

{
@@ -104,6 +284,34 @@ static int sst_send_algo_cmd(struct sst_data *drv, 
	return ret;

}



/**

 * sst_find_and_send_pipe_algo - send all the algo parameters for a pipe

 *

 * The algos which are in each pipeline are sent to the firmware one by one

 *

 * Called with lock held

 */

static int sst_find_and_send_pipe_algo(struct sst_data *drv,

					const char *pipe, struct sst_ids *ids)

{

	int ret = 0;

	struct sst_algo_control *bc;

	struct sst_module *algo = NULL;



	dev_dbg(&drv->pdev->dev, "Enter: widget=%s\n", pipe);



	list_for_each_entry(algo, &ids->algo_list, node) {

		bc = (void *)algo->kctl->private_value;



		dev_dbg(&drv->pdev->dev, "Found algo control name=%s pipe=%s\n",

				algo->kctl->id.name, pipe);

		ret = sst_send_algo_cmd(drv, bc);

		if (ret)

			return ret;

	}

	return ret;

}



static int sst_algo_bytes_ctl_info(struct snd_kcontrol *kcontrol,

			    struct snd_ctl_elem_info *uinfo)

{
@@ -296,8 +504,317 @@ static int sst_gain_put(struct snd_kcontrol *kcontrol, 
	return ret;

}



static int sst_set_pipe_gain(struct sst_ids *ids,

				struct sst_data *drv, int mute);



static int sst_send_pipe_module_params(struct snd_soc_dapm_widget *w,

		struct snd_kcontrol *kcontrol)

{

	struct snd_soc_component *c = snd_soc_dapm_to_component(w->dapm);

	struct sst_data *drv = snd_soc_component_get_drvdata(c);

	struct sst_ids *ids = w->priv;



	mutex_lock(&drv->lock);

	sst_find_and_send_pipe_algo(drv, w->name, ids);

	sst_set_pipe_gain(ids, drv, 0);

	mutex_unlock(&drv->lock);



	return 0;

}



static int sst_generic_modules_event(struct snd_soc_dapm_widget *w,

				     struct snd_kcontrol *k, int event)

{

	if (SND_SOC_DAPM_EVENT_ON(event))

		return sst_send_pipe_module_params(w, k);

	return 0;

}



static const DECLARE_TLV_DB_SCALE(sst_gain_tlv_common, SST_GAIN_MIN_VALUE * 10, 10, 0);



/* Look up table to convert MIXER SW bit regs to SWM inputs */

static const uint swm_mixer_input_ids[SST_SWM_INPUT_COUNT] = {

	[SST_IP_CODEC0]		= SST_SWM_IN_CODEC0,

	[SST_IP_CODEC1]		= SST_SWM_IN_CODEC1,

	[SST_IP_LOOP0]		= SST_SWM_IN_SPROT_LOOP,

	[SST_IP_LOOP1]		= SST_SWM_IN_MEDIA_LOOP1,

	[SST_IP_LOOP2]		= SST_SWM_IN_MEDIA_LOOP2,

	[SST_IP_PCM0]		= SST_SWM_IN_PCM0,

	[SST_IP_PCM1]		= SST_SWM_IN_PCM1,

	[SST_IP_MEDIA0]		= SST_SWM_IN_MEDIA0,

	[SST_IP_MEDIA1]		= SST_SWM_IN_MEDIA1,

	[SST_IP_MEDIA2]		= SST_SWM_IN_MEDIA2,

	[SST_IP_MEDIA3]		= SST_SWM_IN_MEDIA3,

};



/**

 * called with lock held

 */

static int sst_set_pipe_gain(struct sst_ids *ids,

			struct sst_data *drv, int mute)

{

	int ret = 0;

	struct sst_gain_mixer_control *mc;

	struct sst_gain_value *gv;

	struct sst_module *gain = NULL;



	list_for_each_entry(gain, &ids->gain_list, node) {

		struct snd_kcontrol *kctl = gain->kctl;



		dev_dbg(&drv->pdev->dev, "control name=%s\n", kctl->id.name);

		mc = (void *)kctl->private_value;

		gv = mc->gain_val;



		ret = sst_send_gain_cmd(drv, gv, mc->task_id,

			mc->pipe_id | mc->instance_id, mc->module_id, mute);

		if (ret)

			return ret;

	}

	return ret;

}



/*

 * sst_handle_vb_timer - Start/Stop the DSP scheduler

 *

 * The DSP expects first cmd to be SBA_VB_START, so at first startup send

 * that.

 * DSP expects last cmd to be SBA_VB_IDLE, so at last shutdown send that.

 *

 * Do refcount internally so that we send command only at first start

 * and last end. Since SST driver does its own ref count, invoke sst's

 * power ops always!

 */

int sst_handle_vb_timer(struct snd_soc_dai *dai, bool enable)

{

	int ret = 0;

	struct sst_cmd_generic cmd;

	struct sst_data *drv = snd_soc_dai_get_drvdata(dai);

	static int timer_usage;



	if (enable)

		cmd.header.command_id = SBA_VB_START;

	else

		cmd.header.command_id = SBA_IDLE;

	dev_dbg(dai->dev, "enable=%u, usage=%d\n", enable, timer_usage);



	SST_FILL_DEFAULT_DESTINATION(cmd.header.dst);

	cmd.header.length = 0;



	if (enable) {

		ret = sst->ops->power(sst->dev, true);

		if (ret < 0)

			return ret;

	}



	mutex_lock(&drv->lock);

	if (enable)

		timer_usage++;

	else

		timer_usage--;



	/*

	 * Send the command only if this call is the first enable or last

	 * disable

	 */

	if ((enable && (timer_usage == 1)) ||

	    (!enable && (timer_usage == 0))) {

		ret = sst_fill_and_send_cmd_unlocked(drv, SST_IPC_IA_CMD,

				SST_FLAG_BLOCKED, SST_TASK_SBA, 0, &cmd,

				sizeof(cmd.header) + cmd.header.length);

		if (ret && enable) {

			timer_usage--;

			enable  = false;

		}

	}

	mutex_unlock(&drv->lock);



	if (!enable)

		sst->ops->power(sst->dev, false);

	return ret;

}



/**

 * sst_ssp_config - contains SSP configuration for media UC

 */

static const struct sst_ssp_config sst_ssp_configs = {

	.ssp_id = SSP_CODEC,

	.bits_per_slot = 24,

	.slots = 4,

	.ssp_mode = SSP_MODE_MASTER,

	.pcm_mode = SSP_PCM_MODE_NETWORK,

	.duplex = SSP_DUPLEX,

	.ssp_protocol = SSP_MODE_PCM,

	.fs_width = 1,

	.fs_frequency = SSP_FS_48_KHZ,

	.active_slot_map = 0xF,

	.start_delay = 0,

};



int send_ssp_cmd(struct snd_soc_dai *dai, const char *id, bool enable)

{

	struct sst_cmd_sba_hw_set_ssp cmd;

	struct sst_data *drv = snd_soc_dai_get_drvdata(dai);

	const struct sst_ssp_config *config;



	dev_info(dai->dev, "Enter: enable=%d port_name=%s\n", enable, id);



	SST_FILL_DEFAULT_DESTINATION(cmd.header.dst);

	cmd.header.command_id = SBA_HW_SET_SSP;

	cmd.header.length = sizeof(struct sst_cmd_sba_hw_set_ssp)

				- sizeof(struct sst_dsp_header);



	config = &sst_ssp_configs;

	dev_dbg(dai->dev, "ssp_id: %u\n", config->ssp_id);



	if (enable)

		cmd.switch_state = SST_SWITCH_ON;

	else

		cmd.switch_state = SST_SWITCH_OFF;



	cmd.selection = config->ssp_id;

	cmd.nb_bits_per_slots = config->bits_per_slot;

	cmd.nb_slots = config->slots;

	cmd.mode = config->ssp_mode | (config->pcm_mode << 1);

	cmd.duplex = config->duplex;

	cmd.active_tx_slot_map = config->active_slot_map;

	cmd.active_rx_slot_map = config->active_slot_map;

	cmd.frame_sync_frequency = config->fs_frequency;

	cmd.frame_sync_polarity = SSP_FS_ACTIVE_HIGH;

	cmd.data_polarity = 1;

	cmd.frame_sync_width = config->fs_width;

	cmd.ssp_protocol = config->ssp_protocol;

	cmd.start_delay = config->start_delay;

	cmd.reserved1 = cmd.reserved2 = 0xFF;



	return sst_fill_and_send_cmd(drv, SST_IPC_IA_CMD, SST_FLAG_BLOCKED,

				SST_TASK_SBA, 0, &cmd,

				sizeof(cmd.header) + cmd.header.length);

}



static int sst_set_be_modules(struct snd_soc_dapm_widget *w,

			 struct snd_kcontrol *k, int event)

{

	int ret = 0;

	struct snd_soc_component *c = snd_soc_dapm_to_component(w->dapm);

	struct sst_data *drv = snd_soc_component_get_drvdata(c);



	dev_dbg(c->dev, "Enter: widget=%s\n", w->name);



	if (SND_SOC_DAPM_EVENT_ON(event)) {

		ret = sst_send_slot_map(drv);

		if (ret)

			return ret;

		ret = sst_send_pipe_module_params(w, k);

	}

	return ret;

}



static int sst_set_media_path(struct snd_soc_dapm_widget *w,

			      struct snd_kcontrol *k, int event)

{

	int ret = 0;

	struct sst_cmd_set_media_path cmd;

	struct snd_soc_component *c = snd_soc_dapm_to_component(w->dapm);

	struct sst_data *drv = snd_soc_component_get_drvdata(c);

	struct sst_ids *ids = w->priv;



	dev_dbg(c->dev, "widget=%s\n", w->name);

	dev_dbg(c->dev, "task=%u, location=%#x\n",

				ids->task_id, ids->location_id);



	if (SND_SOC_DAPM_EVENT_ON(event))

		cmd.switch_state = SST_PATH_ON;

	else

		cmd.switch_state = SST_PATH_OFF;



	SST_FILL_DESTINATION(2, cmd.header.dst,

			     ids->location_id, SST_DEFAULT_MODULE_ID);



	/* MMX_SET_MEDIA_PATH == SBA_SET_MEDIA_PATH */

	cmd.header.command_id = MMX_SET_MEDIA_PATH;

	cmd.header.length = sizeof(struct sst_cmd_set_media_path)

				- sizeof(struct sst_dsp_header);



	ret = sst_fill_and_send_cmd(drv, SST_IPC_IA_CMD, SST_FLAG_BLOCKED,

			      ids->task_id, 0, &cmd,

			      sizeof(cmd.header) + cmd.header.length);

	if (ret)

		return ret;



	if (SND_SOC_DAPM_EVENT_ON(event))

		ret = sst_send_pipe_module_params(w, k);

	return ret;

}



static int sst_set_media_loop(struct snd_soc_dapm_widget *w,

			struct snd_kcontrol *k, int event)

{

	int ret = 0;

	struct sst_cmd_sba_set_media_loop_map cmd;

	struct snd_soc_component *c = snd_soc_dapm_to_component(w->dapm);

	struct sst_data *drv = snd_soc_component_get_drvdata(c);

	struct sst_ids *ids = w->priv;



	dev_dbg(c->dev, "Enter:widget=%s\n", w->name);

	if (SND_SOC_DAPM_EVENT_ON(event))

		cmd.switch_state = SST_SWITCH_ON;

	else

		cmd.switch_state = SST_SWITCH_OFF;



	SST_FILL_DESTINATION(2, cmd.header.dst,

			     ids->location_id, SST_DEFAULT_MODULE_ID);



	cmd.header.command_id = SBA_SET_MEDIA_LOOP_MAP;

	cmd.header.length = sizeof(struct sst_cmd_sba_set_media_loop_map)

				 - sizeof(struct sst_dsp_header);

	cmd.param.part.cfg.rate = 2; /* 48khz */



	cmd.param.part.cfg.format = ids->format; /* stereo/Mono */

	cmd.param.part.cfg.s_length = 1; /* 24bit left justified */

	cmd.map = 0; /* Algo sequence: Gain - DRP - FIR - IIR */



	ret = sst_fill_and_send_cmd(drv, SST_IPC_IA_CMD, SST_FLAG_BLOCKED,

			      SST_TASK_SBA, 0, &cmd,

			      sizeof(cmd.header) + cmd.header.length);

	if (ret)

		return ret;



	if (SND_SOC_DAPM_EVENT_ON(event))

		ret = sst_send_pipe_module_params(w, k);

	return ret;

}



static const char * const slot_names[] = {

	"none",

	"slot 0", "slot 1", "slot 2", "slot 3",

	"slot 4", "slot 5", "slot 6", "slot 7", /* not supported by FW */

};



static const char * const channel_names[] = {

	"none",

	"codec_out0_0", "codec_out0_1", "codec_out1_0", "codec_out1_1",

	"codec_out2_0", "codec_out2_1", "codec_out3_0", "codec_out3_1", /* not supported by FW */

};



#define SST_INTERLEAVER(xpname, slot_name, slotno) \

	SST_SSP_SLOT_CTL(xpname, "tx interleaver", slot_name, slotno, true, \

			 channel_names, sst_slot_get, sst_slot_put)



#define SST_DEINTERLEAVER(xpname, channel_name, channel_no) \

	SST_SSP_SLOT_CTL(xpname, "rx deinterleaver", channel_name, channel_no, false, \

			 slot_names, sst_slot_get, sst_slot_put)



static const struct snd_kcontrol_new sst_slot_controls[] = {

	SST_INTERLEAVER("codec_out", "slot 0", 0),

	SST_INTERLEAVER("codec_out", "slot 1", 1),

	SST_INTERLEAVER("codec_out", "slot 2", 2),

	SST_INTERLEAVER("codec_out", "slot 3", 3),

	SST_DEINTERLEAVER("codec_in", "codec_in0_0", 0),

	SST_DEINTERLEAVER("codec_in", "codec_in0_1", 1),

	SST_DEINTERLEAVER("codec_in", "codec_in1_0", 2),

	SST_DEINTERLEAVER("codec_in", "codec_in1_1", 3),

};



/* Gain helper with min/max set */

#define SST_GAIN(name, path_id, task_id, instance, gain_var)				\

	SST_GAIN_KCONTROLS(name, "Gain", SST_GAIN_MIN_VALUE, SST_GAIN_MAX_VALUE,	\
@@ -382,6 +899,234 @@ static int sst_algo_control_init(struct device *dev) 
	return 0;

}



static bool is_sst_dapm_widget(struct snd_soc_dapm_widget *w)

{

	switch (w->id) {

	case snd_soc_dapm_pga:

	case snd_soc_dapm_aif_in:

	case snd_soc_dapm_aif_out:

	case snd_soc_dapm_input:

	case snd_soc_dapm_output:

	case snd_soc_dapm_mixer:

		return true;

	default:

		return false;

	}

}



/**

 * sst_send_pipe_gains - send gains for the front-end DAIs

 *

 * The gains in the pipes connected to the front-ends are muted/unmuted

 * automatically via the digital_mute() DAPM callback. This function sends the

 * gains for the front-end pipes.

 */

int sst_send_pipe_gains(struct snd_soc_dai *dai, int stream, int mute)

{

	struct sst_data *drv = snd_soc_dai_get_drvdata(dai);

	struct snd_soc_dapm_widget *w;

	struct snd_soc_dapm_path *p = NULL;



	dev_dbg(dai->dev, "enter, dai-name=%s dir=%d\n", dai->name, stream);



	if (stream == SNDRV_PCM_STREAM_PLAYBACK) {

		dev_dbg(dai->dev, "Stream name=%s\n",

				dai->playback_widget->name);

		w = dai->playback_widget;

		list_for_each_entry(p, &w->sinks, list_source) {

			if (p->connected && !p->connected(w, p->sink))

				continue;



			if (p->connect && p->sink->power &&

					is_sst_dapm_widget(p->sink)) {

				struct sst_ids *ids = p->sink->priv;



				dev_dbg(dai->dev, "send gains for widget=%s\n",

						p->sink->name);

				mutex_lock(&drv->lock);

				sst_set_pipe_gain(ids, drv, mute);

				mutex_unlock(&drv->lock);

			}

		}

	} else {

		dev_dbg(dai->dev, "Stream name=%s\n",

				dai->capture_widget->name);

		w = dai->capture_widget;

		list_for_each_entry(p, &w->sources, list_sink) {

			if (p->connected && !p->connected(w, p->sink))

				continue;



			if (p->connect &&  p->source->power &&

					is_sst_dapm_widget(p->source)) {

				struct sst_ids *ids = p->source->priv;



				dev_dbg(dai->dev, "send gain for widget=%s\n",

						p->source->name);

				mutex_lock(&drv->lock);

				sst_set_pipe_gain(ids, drv, mute);

				mutex_unlock(&drv->lock);

			}

		}

	}

	return 0;

}



/**

 * sst_fill_module_list - populate the list of modules/gains for a pipe

 *

 *

 * Fills the widget pointer in the kcontrol private data, and also fills the

 * kcontrol pointer in the widget private data.

 *

 * Widget pointer is used to send the algo/gain in the .put() handler if the

 * widget is powerd on.

 *

 * Kcontrol pointer is used to send the algo/gain in the widget power ON/OFF

 * event handler. Each widget (pipe) has multiple algos stored in the algo_list.

 */

static int sst_fill_module_list(struct snd_kcontrol *kctl,

	 struct snd_soc_dapm_widget *w, int type)

{

	struct sst_module *module = NULL;

	struct snd_soc_component *c = snd_soc_dapm_to_component(w->dapm);

	struct sst_ids *ids = w->priv;

	int ret = 0;



	module = devm_kzalloc(c->dev, sizeof(*module), GFP_KERNEL);

	if (!module)

		return -ENOMEM;



	if (type == SST_MODULE_GAIN) {

		struct sst_gain_mixer_control *mc = (void *)kctl->private_value;



		mc->w = w;

		module->kctl = kctl;

		list_add_tail(&module->node, &ids->gain_list);

	} else if (type == SST_MODULE_ALGO) {

		struct sst_algo_control *bc = (void *)kctl->private_value;



		bc->w = w;

		module->kctl = kctl;

		list_add_tail(&module->node, &ids->algo_list);

	} else {

		dev_err(c->dev, "invoked for unknown type %d module %s",

				type, kctl->id.name);

		ret = -EINVAL;

	}



	return ret;

}



/**

 * sst_fill_widget_module_info - fill list of gains/algos for the pipe

 * @widget:	pipe modelled as a DAPM widget

 *

 * Fill the list of gains/algos for the widget by looking at all the card

 * controls and comparing the name of the widget with the first part of control

 * name. First part of control name contains the pipe name (widget name).

 */

static int sst_fill_widget_module_info(struct snd_soc_dapm_widget *w,

	struct snd_soc_platform *platform)

{

	struct snd_kcontrol *kctl;

	int index, ret = 0;

	struct snd_card *card = platform->component.card->snd_card;

	char *idx;



	down_read(&card->controls_rwsem);



	list_for_each_entry(kctl, &card->controls, list) {

		idx = strstr(kctl->id.name, " ");

		if (idx == NULL)

			continue;

		index  = strlen(kctl->id.name) - strlen(idx);



		if (strstr(kctl->id.name, "Volume") &&

		    !strncmp(kctl->id.name, w->name, index))

			ret = sst_fill_module_list(kctl, w, SST_MODULE_GAIN);



		else if (strstr(kctl->id.name, "params") &&

			 !strncmp(kctl->id.name, w->name, index))

			ret = sst_fill_module_list(kctl, w, SST_MODULE_ALGO);



		else if (strstr(kctl->id.name, "Switch") &&

			 !strncmp(kctl->id.name, w->name, index) &&

			 strstr(kctl->id.name, "Gain")) {

			struct sst_gain_mixer_control *mc =

						(void *)kctl->private_value;



			mc->w = w;



		} else if (strstr(kctl->id.name, "interleaver") &&

			 !strncmp(kctl->id.name, w->name, index)) {

			struct sst_enum *e = (void *)kctl->private_value;



			e->w = w;



		} else if (strstr(kctl->id.name, "deinterleaver") &&

			 !strncmp(kctl->id.name, w->name, index)) {



			struct sst_enum *e = (void *)kctl->private_value;



			e->w = w;

		}



		if (ret < 0) {

			up_read(&card->controls_rwsem);

			return ret;

		}

	}



	up_read(&card->controls_rwsem);

	return 0;

}



/**

 * sst_fill_linked_widgets - fill the parent pointer for the linked widget

 */

static void sst_fill_linked_widgets(struct snd_soc_platform *platform,

						struct sst_ids *ids)

{

	struct snd_soc_dapm_widget *w;

	unsigned int len = strlen(ids->parent_wname);



	list_for_each_entry(w, &platform->component.card->widgets, list) {

		if (!strncmp(ids->parent_wname, w->name, len)) {

			ids->parent_w = w;

			break;

		}

	}

}



/**

 * sst_map_modules_to_pipe - fill algo/gains list for all pipes

 */

static int sst_map_modules_to_pipe(struct snd_soc_platform *platform)

{

	struct snd_soc_dapm_widget *w;

	int ret = 0;



	list_for_each_entry(w, &platform->component.card->widgets, list) {

		if (platform && is_sst_dapm_widget(w) && (w->priv)) {

			struct sst_ids *ids = w->priv;



			dev_dbg(platform->dev, "widget type=%d name=%s\n",

					w->id, w->name);

			INIT_LIST_HEAD(&ids->algo_list);

			INIT_LIST_HEAD(&ids->gain_list);

			ret = sst_fill_widget_module_info(w, platform);



			if (ret < 0)

				return ret;



			/* fill linked widgets */

			if (ids->parent_wname !=  NULL)

				sst_fill_linked_widgets(platform, ids);

		}

	}

	return 0;

}



int sst_dsp_init_v2_dpcm(struct snd_soc_platform *platform)

{

	int i, ret = 0;
@@ -411,6 +1156,15 @@ int sst_dsp_init_v2_dpcm(struct snd_soc_platform *platform) 
		return ret;

	ret = snd_soc_add_platform_controls(platform, sst_algo_controls,

			ARRAY_SIZE(sst_algo_controls));

	if (ret)

		return ret;



	ret = snd_soc_add_platform_controls(platform, sst_slot_controls,

			ARRAY_SIZE(sst_slot_controls));

	if (ret)

		return ret;



	ret = sst_map_modules_to_pipe(platform);



	return ret;

}

sound/soc/intel/sst-atom-controls.h

+307 −0

File changed.

Preview size limit exceeded, changes collapsed.