1 // SPDX-License-Identifier: GPL-2.0
3 // Renesas R-Car DVC support
21  * Volume Ramp
22  *	amixer set "DVC Out Ramp Up Rate"   "0.125 dB/64 steps"
23  *	amixer set "DVC Out Ramp Down Rate" "0.125 dB/512 steps"
24  *	amixer set "DVC Out Ramp" on
27  *	amixer set "DVC Out" 100%  // Volume Up
40 	struct rsnd_kctrl_cfg_s ren;	/* Ramp Enable */
41 	struct rsnd_kctrl_cfg_s rup;	/* Ramp Rate Up */
42 	struct rsnd_kctrl_cfg_s rdown;	/* Ramp Rate Down */
45 #define rsnd_dvc_get(priv, id) ((struct rsnd_dvc *)(priv->dvc) + id)
46 #define rsnd_dvc_nr(priv) ((priv)->dvc_nr)
54 	     ((pos) = (struct rsnd_dvc *)(priv)->dvc + i);	\
69 #define rsnd_dvc_get_vrpdr(dvc) (rsnd_kctrl_vals(dvc->rup) << 8 | \
70 				 rsnd_kctrl_vals(dvc->rdown))
71 #define rsnd_dvc_get_vrdbr(dvc) (0x3ff - (rsnd_kctrl_valm(dvc->volume, 0) >> 13))
80 	/* Enable Ramp */  in rsnd_dvc_volume_parameter()
81 	if (rsnd_kctrl_vals(dvc->ren))  in rsnd_dvc_volume_parameter()
83 			val[i] = rsnd_kctrl_max(dvc->volume);  in rsnd_dvc_volume_parameter()
86 			val[i] = rsnd_kctrl_valm(dvc->volume, i);  in rsnd_dvc_volume_parameter()
109 	/* Enable Ramp */  in rsnd_dvc_volume_init()
110 	if (rsnd_kctrl_vals(dvc->ren)) {  in rsnd_dvc_volume_init()
115 		 * use scale-downed Digital Volume  in rsnd_dvc_volume_init()
116 		 * as Volume Ramp  in rsnd_dvc_volume_init()
117 		 * 7F FFFF -> 3FF  in rsnd_dvc_volume_init()
131 	/* Volume Ramp Parameter */  in rsnd_dvc_volume_init()
152 	for (i = 0; i < rsnd_kctrl_size(dvc->mute); i++)  in rsnd_dvc_volume_update()
153 		zcmcr |= (!!rsnd_kctrl_valm(dvc->mute, i)) << i;  in rsnd_dvc_volume_update()
155 	if (rsnd_kctrl_vals(dvc->ren)) {  in rsnd_dvc_volume_update()
166 	/* Volume Ramp Function */  in rsnd_dvc_volume_update()
231 			&dvc->volume, channels,  in rsnd_dvc_pcm_new()
232 			0x00800000 - 1);  in rsnd_dvc_pcm_new()
242 			&dvc->mute, channels,  in rsnd_dvc_pcm_new()
247 	/* Ramp */  in rsnd_dvc_pcm_new()
250 			"DVC Out Ramp Switch" : "DVC In Ramp Switch",  in rsnd_dvc_pcm_new()
253 			&dvc->ren, 1);  in rsnd_dvc_pcm_new()
259 			"DVC Out Ramp Up Rate" : "DVC In Ramp Up Rate",  in rsnd_dvc_pcm_new()
262 			&dvc->rup,  in rsnd_dvc_pcm_new()
270 			"DVC Out Ramp Down Rate" : "DVC In Ramp Down Rate",  in rsnd_dvc_pcm_new()
273 			&dvc->rdown,  in rsnd_dvc_pcm_new()
340 		ret = -EINVAL;  in rsnd_dvc_probe()
346 		ret = -ENOMEM;  in rsnd_dvc_probe()
350 	priv->dvc_nr	= nr;  in rsnd_dvc_probe()
351 	priv->dvc	= dvc;  in rsnd_dvc_probe()