Commit 131d8106 authored by Mark Brown's avatar Mark Brown
Browse files

ASoC: Allow user-specified WM8958 multiband compressor configurations 



The paramters of the WM8958 multiband compressor can be tuned by the
user for their system using a graphical configuration tool on the host.
Allow the user to specify a set of such paramters in platform data and
select between them at runtime.

Signed-off-by: default avatarMark Brown <broonie@opensource.wolfsonmicro.com>
Acked-by: default avatarLiam Girdwood <lrg@slimlogic.co.uk>
parent b2822a8c

include/linux/mfd/wm8994/pdata.h

+17 −0
Original line number Diff line number Diff line
@@ -30,6 +30,8 @@ struct wm8994_ldo_pdata { 


#define WM8994_DRC_REGS 5

#define WM8994_EQ_REGS  19

#define WM8958_MBC_CUTOFF_REGS 20

#define WM8958_MBC_COEFF_REGS  48



/**

 * DRC configurations are specified with a label and a set of register
@@ -59,6 +61,18 @@ struct wm8994_retune_mobile_cfg { 
        u16 regs[WM8994_EQ_REGS];

};



/**

 * Multiband compressor configurations are specified with a label and

 * two sets of values to write.  Configurations are expected to be

 * generated using the multiband compressor configuration panel in

 * WISCE - see http://www.wolfsonmicro.com/wisce/

 */

struct wm8958_mbc_cfg {

	const char *name;

	u16 cutoff_regs[WM8958_MBC_CUTOFF_REGS];

	u16 coeff_regs[WM8958_MBC_COEFF_REGS];

};



struct wm8994_pdata {

	int gpio_base;
@@ -78,6 +92,9 @@ struct wm8994_pdata { 
        int num_retune_mobile_cfgs;

        struct wm8994_retune_mobile_cfg *retune_mobile_cfgs;



	int num_mbc_cfgs;

	struct wm8958_mbc_cfg *mbc_cfgs;



        /* LINEOUT can be differential or single ended */

        unsigned int lineout1_diff:1;

        unsigned int lineout2_diff:1;

include/linux/mfd/wm8994/registers.h

+68 −0
Original line number Diff line number Diff line
@@ -258,6 +258,74 @@ 
#define WM8958_DSP2_VERMAJMIN                   0xA04

#define WM8958_DSP2_VERBUILD                    0xA05

#define WM8958_DSP2_EXECCONTROL                 0xA0D

#define WM8958_MBC_BAND_2_LOWER_CUTOFF_C1_1     0x2200

#define WM8958_MBC_BAND_2_LOWER_CUTOFF_C1_2     0x2201

#define WM8958_MBC_BAND_2_LOWER_CUTOFF_C2_1     0x2202

#define WM8958_MBC_BAND_2_LOWER_CUTOFF_C2_2     0x2203

#define WM8958_MBC_BAND_2_LOWER_CUTOFF_C3_1     0x2204

#define WM8958_MBC_BAND_2_LOWER_CUTOFF_C3_2     0x2205

#define WM8958_MBC_BAND_2_UPPER_CUTOFF_C2_1     0x2206

#define WM8958_MBC_BAND_2_UPPER_CUTOFF_C2_2     0x2207

#define WM8958_MBC_BAND_2_UPPER_CUTOFF_C3_1     0x2208

#define WM8958_MBC_BAND_2_UPPER_CUTOFF_C3_2     0x2209

#define WM8958_MBC_BAND_2_UPPER_CUTOFF_C1_1     0x220A

#define WM8958_MBC_BAND_2_UPPER_CUTOFF_C1_2     0x220B

#define WM8958_MBC_BAND_1_UPPER_CUTOFF_C1_1     0x220C

#define WM8958_MBC_BAND_1_UPPER_CUTOFF_C1_2     0x220D

#define WM8958_MBC_BAND_1_UPPER_CUTOFF_C2_1     0x220E

#define WM8958_MBC_BAND_1_UPPER_CUTOFF_C2_2     0x220F

#define WM8958_MBC_BAND_1_UPPER_CUTOFF_C3_1     0x2210

#define WM8958_MBC_BAND_1_UPPER_CUTOFF_C3_2     0x2211

#define WM8958_MBC_BAND_1_LOWER_CUTOFF_1        0x2212

#define WM8958_MBC_BAND_1_LOWER_CUTOFF_2        0x2213

#define WM8958_MBC_BAND_1_K_1                   0x2400

#define WM8958_MBC_BAND_1_K_2                   0x2401

#define WM8958_MBC_BAND_1_N1_1                  0x2402

#define WM8958_MBC_BAND_1_N1_2                  0x2403

#define WM8958_MBC_BAND_1_N2_1                  0x2404

#define WM8958_MBC_BAND_1_N2_2                  0x2405

#define WM8958_MBC_BAND_1_N3_1                  0x2406

#define WM8958_MBC_BAND_1_N3_2                  0x2407

#define WM8958_MBC_BAND_1_N4_1                  0x2408

#define WM8958_MBC_BAND_1_N4_2                  0x2409

#define WM8958_MBC_BAND_1_N5_1                  0x240A

#define WM8958_MBC_BAND_1_N5_2                  0x240B

#define WM8958_MBC_BAND_1_X1_1                  0x240C

#define WM8958_MBC_BAND_1_X1_2                  0x240D

#define WM8958_MBC_BAND_1_X2_1                  0x240E

#define WM8958_MBC_BAND_1_X2_2                  0x240F

#define WM8958_MBC_BAND_1_X3_1                  0x2410

#define WM8958_MBC_BAND_1_X3_2                  0x2411

#define WM8958_MBC_BAND_1_ATTACK_1              0x2412

#define WM8958_MBC_BAND_1_ATTACK_2              0x2413

#define WM8958_MBC_BAND_1_DECAY_1               0x2414

#define WM8958_MBC_BAND_1_DECAY_2               0x2415

#define WM8958_MBC_BAND_2_K_1                   0x2416

#define WM8958_MBC_BAND_2_K_2                   0x2417

#define WM8958_MBC_BAND_2_N1_1                  0x2418

#define WM8958_MBC_BAND_2_N1_2                  0x2419

#define WM8958_MBC_BAND_2_N2_1                  0x241A

#define WM8958_MBC_BAND_2_N2_2                  0x241B

#define WM8958_MBC_BAND_2_N3_1                  0x241C

#define WM8958_MBC_BAND_2_N3_2                  0x241D

#define WM8958_MBC_BAND_2_N4_1                  0x241E

#define WM8958_MBC_BAND_2_N4_2                  0x241F

#define WM8958_MBC_BAND_2_N5_1                  0x2420

#define WM8958_MBC_BAND_2_N5_2                  0x2421

#define WM8958_MBC_BAND_2_X1_1                  0x2422

#define WM8958_MBC_BAND_2_X1_2                  0x2423

#define WM8958_MBC_BAND_2_X2_1                  0x2424

#define WM8958_MBC_BAND_2_X2_2                  0x2425

#define WM8958_MBC_BAND_2_X3_1                  0x2426

#define WM8958_MBC_BAND_2_X3_2                  0x2427

#define WM8958_MBC_BAND_2_ATTACK_1              0x2428

#define WM8958_MBC_BAND_2_ATTACK_2              0x2429

#define WM8958_MBC_BAND_2_DECAY_1               0x242A

#define WM8958_MBC_BAND_2_DECAY_2               0x242B

#define WM8958_MBC_B2_PG2_1                     0x242C

#define WM8958_MBC_B2_PG2_2                     0x242D

#define WM8958_MBC_B1_PG2_1                     0x242E

#define WM8958_MBC_B1_PG2_2                     0x242F

#define WM8994_WRITE_SEQUENCER_0                0x3000

#define WM8994_WRITE_SEQUENCER_1                0x3001

#define WM8994_WRITE_SEQUENCER_2                0x3002

sound/soc/codecs/wm8994.c

+82 −2
Original line number Diff line number Diff line
@@ -92,6 +92,11 @@ struct wm8994_priv { 
	int retune_mobile_cfg[WM8994_NUM_EQ];

	struct soc_enum retune_mobile_enum;



	/* Platform dependant MBC configuration */

	int mbc_cfg;

	const char **mbc_texts;

	struct soc_enum mbc_enum;



	struct wm8994_micdet micdet[2];



	wm8958_micdet_cb jack_cb;
@@ -543,8 +548,9 @@ static const struct soc_enum aif2dacr_src = 
static void wm8958_mbc_apply(struct snd_soc_codec *codec, int mbc, int start)

{

	struct wm8994_priv *wm8994 = snd_soc_codec_get_drvdata(codec);

	struct wm8994_pdata *pdata = wm8994->pdata;

	int pwr_reg = snd_soc_read(codec, WM8994_POWER_MANAGEMENT_5);

	int ena, reg, aif;

	int ena, reg, aif, i;



	switch (mbc) {

	case 0:
@@ -587,7 +593,20 @@ static void wm8958_mbc_apply(struct snd_soc_codec *codec, int mbc, int start) 
		snd_soc_update_bits(codec, WM8958_DSP2_PROGRAM,

				    WM8958_DSP2_ENA, WM8958_DSP2_ENA);



		/* TODO: Apply any user specified MBC settings */

		/* If we've got user supplied MBC settings use them */

		if (pdata && pdata->num_mbc_cfgs) {

			struct wm8958_mbc_cfg *cfg

				= &pdata->mbc_cfgs[wm8994->mbc_cfg];



			for (i = 0; i < ARRAY_SIZE(cfg->coeff_regs); i++)

				snd_soc_write(codec, i + WM8958_MBC_BAND_1_K_1,

					      cfg->coeff_regs[i]);



			for (i = 0; i < ARRAY_SIZE(cfg->cutoff_regs); i++)

				snd_soc_write(codec,

					      i + WM8958_MBC_BAND_2_LOWER_CUTOFF_C1_1,

					      cfg->cutoff_regs[i]);

		}



		/* Run the DSP */

		snd_soc_write(codec, WM8958_DSP2_EXECCONTROL,
@@ -648,6 +667,39 @@ static int wm8958_aif_ev(struct snd_soc_dapm_widget *w, 
	return 0;

}



static int wm8958_put_mbc_enum(struct snd_kcontrol *kcontrol,

			       struct snd_ctl_elem_value *ucontrol)

{

	struct snd_soc_codec *codec = snd_kcontrol_chip(kcontrol);

	struct wm8994_priv *wm8994 = snd_soc_codec_get_drvdata(codec);

	struct wm8994_pdata *pdata = wm8994->pdata;

	int value = ucontrol->value.integer.value[0];

	int reg;



	/* Don't allow on the fly reconfiguration */

	reg = snd_soc_read(codec, WM8994_CLOCKING_1);

	if (reg < 0 || reg & WM8958_DSP2CLK_ENA)

		return -EBUSY;



	if (value >= pdata->num_mbc_cfgs)

		return -EINVAL;



	wm8994->mbc_cfg = value;



	return 0;

}



static int wm8958_get_mbc_enum(struct snd_kcontrol *kcontrol,

			       struct snd_ctl_elem_value *ucontrol)

{

	struct snd_soc_codec *codec = snd_kcontrol_chip(kcontrol);

	struct wm8994_priv *wm8994 = snd_soc_codec_get_drvdata(codec);



	ucontrol->value.enumerated.item[0] = wm8994->mbc_cfg;



	return 0;

}



static int wm8958_mbc_info(struct snd_kcontrol *kcontrol,

			   struct snd_ctl_elem_info *uinfo)

{
@@ -2539,6 +2591,34 @@ static void wm8994_handle_pdata(struct wm8994_priv *wm8994) 
	dev_dbg(codec->dev, "%d ReTune Mobile configurations\n",

		pdata->num_retune_mobile_cfgs);



	if (pdata->num_mbc_cfgs) {

		struct snd_kcontrol_new control[] = {

			SOC_ENUM_EXT("MBC Mode", wm8994->mbc_enum,

				     wm8958_get_mbc_enum, wm8958_put_mbc_enum),

		};



		/* We need an array of texts for the enum API */

		wm8994->mbc_texts = kmalloc(sizeof(char *)

					    * pdata->num_mbc_cfgs, GFP_KERNEL);

		if (!wm8994->mbc_texts) {

			dev_err(wm8994->codec->dev,

				"Failed to allocate %d MBC config texts\n",

				pdata->num_mbc_cfgs);

			return;

		}



		for (i = 0; i < pdata->num_mbc_cfgs; i++)

			wm8994->mbc_texts[i] = pdata->mbc_cfgs[i].name;



		wm8994->mbc_enum.max = pdata->num_mbc_cfgs;

		wm8994->mbc_enum.texts = wm8994->mbc_texts;



		ret = snd_soc_add_controls(wm8994->codec, control, 1);

		if (ret != 0)

			dev_err(wm8994->codec->dev,

				"Failed to add MBC mode controls: %d\n", ret);

	}



	if (pdata->num_retune_mobile_cfgs)

		wm8994_handle_retune_mobile_pdata(wm8994);

	else

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