1 // SPDX-License-Identifier: GPL-2.0-or-later
5  *   Lowlevel functions for WM8766 codec
7  *	Copyright (c) 2012 Ondrej Zary <linux@rainbow-software.org>
16 /* low-level access */
21 		wm->regs[addr] = data;  in snd_wm8766_write()
22 	wm->ops.write(wm, addr, data);  in snd_wm8766_write()
27 static const DECLARE_TLV_DB_SCALE(wm8766_tlv, -12750, 50, 1);
38 		.max = 0xff,
49 		.max = 0xff,
60 		.max = 0xff,
135 /* exported functions */
147 	memcpy(wm->ctl, snd_wm8766_default_ctl, sizeof(wm->ctl));  in snd_wm8766_init()
161 		snd_wm8766_write(wm, i, wm->regs[i]);  in snd_wm8766_resume()
166 	u16 val = wm->regs[WM8766_REG_IFCTRL] & ~WM8766_IF_MASK;  in snd_wm8766_set_if()
174 	u16 val = wm->regs[WM8766_REG_DACR1];  in snd_wm8766_volume_restore()
185 	int n = kcontrol->private_value;  in snd_wm8766_volume_info()
187 	uinfo->type = SNDRV_CTL_ELEM_TYPE_INTEGER;  in snd_wm8766_volume_info()
188 	uinfo->count = (wm->ctl[n].flags & WM8766_FLAG_STEREO) ? 2 : 1;  in snd_wm8766_volume_info()
189 	uinfo->value.integer.min = wm->ctl[n].min;  in snd_wm8766_volume_info()
190 	uinfo->value.integer.max = wm->ctl[n].max;  in snd_wm8766_volume_info()
199 	int n = kcontrol->private_value;  in snd_wm8766_enum_info()
201 	return snd_ctl_enum_info(uinfo, 1, wm->ctl[n].max,  in snd_wm8766_enum_info()
202 						wm->ctl[n].enum_names);  in snd_wm8766_enum_info()
209 	int n = kcontrol->private_value;  in snd_wm8766_ctl_get()
212 	if (wm->ctl[n].get)  in snd_wm8766_ctl_get()
213 		wm->ctl[n].get(wm, &val1, &val2);  in snd_wm8766_ctl_get()
215 		val1 = wm->regs[wm->ctl[n].reg1] & wm->ctl[n].mask1;  in snd_wm8766_ctl_get()
216 		val1 >>= __ffs(wm->ctl[n].mask1);  in snd_wm8766_ctl_get()
217 		if (wm->ctl[n].flags & WM8766_FLAG_STEREO) {  in snd_wm8766_ctl_get()
218 			val2 = wm->regs[wm->ctl[n].reg2] & wm->ctl[n].mask2;  in snd_wm8766_ctl_get()
219 			val2 >>= __ffs(wm->ctl[n].mask2);  in snd_wm8766_ctl_get()
220 			if (wm->ctl[n].flags & WM8766_FLAG_VOL_UPDATE)  in snd_wm8766_ctl_get()
224 	if (wm->ctl[n].flags & WM8766_FLAG_INVERT) {  in snd_wm8766_ctl_get()
225 		val1 = wm->ctl[n].max - (val1 - wm->ctl[n].min);  in snd_wm8766_ctl_get()
226 		if (wm->ctl[n].flags & WM8766_FLAG_STEREO)  in snd_wm8766_ctl_get()
227 			val2 = wm->ctl[n].max - (val2 - wm->ctl[n].min);  in snd_wm8766_ctl_get()
229 	ucontrol->value.integer.value[0] = val1;  in snd_wm8766_ctl_get()
230 	if (wm->ctl[n].flags & WM8766_FLAG_STEREO)  in snd_wm8766_ctl_get()
231 		ucontrol->value.integer.value[1] = val2;  in snd_wm8766_ctl_get()
240 	int n = kcontrol->private_value;  in snd_wm8766_ctl_put()
244 	regval1 = ucontrol->value.integer.value[0];  in snd_wm8766_ctl_put()
245 	regval2 = ucontrol->value.integer.value[1];  in snd_wm8766_ctl_put()
246 	if (wm->ctl[n].flags & WM8766_FLAG_INVERT) {  in snd_wm8766_ctl_put()
247 		regval1 = wm->ctl[n].max - (regval1 - wm->ctl[n].min);  in snd_wm8766_ctl_put()
248 		regval2 = wm->ctl[n].max - (regval2 - wm->ctl[n].min);  in snd_wm8766_ctl_put()
250 	if (wm->ctl[n].set)  in snd_wm8766_ctl_put()
251 		wm->ctl[n].set(wm, regval1, regval2);  in snd_wm8766_ctl_put()
253 		val = wm->regs[wm->ctl[n].reg1] & ~wm->ctl[n].mask1;  in snd_wm8766_ctl_put()
254 		val |= regval1 << __ffs(wm->ctl[n].mask1);  in snd_wm8766_ctl_put()
256 		if (wm->ctl[n].flags & WM8766_FLAG_STEREO &&  in snd_wm8766_ctl_put()
257 				wm->ctl[n].reg1 == wm->ctl[n].reg2) {  in snd_wm8766_ctl_put()
258 			val &= ~wm->ctl[n].mask2;  in snd_wm8766_ctl_put()
259 			val |= regval2 << __ffs(wm->ctl[n].mask2);  in snd_wm8766_ctl_put()
261 		snd_wm8766_write(wm, wm->ctl[n].reg1, val);  in snd_wm8766_ctl_put()
263 		if (wm->ctl[n].flags & WM8766_FLAG_STEREO &&  in snd_wm8766_ctl_put()
264 				wm->ctl[n].reg1 != wm->ctl[n].reg2) {  in snd_wm8766_ctl_put()
265 			val = wm->regs[wm->ctl[n].reg2] & ~wm->ctl[n].mask2;  in snd_wm8766_ctl_put()
266 			val |= regval2 << __ffs(wm->ctl[n].mask2);  in snd_wm8766_ctl_put()
267 			if (wm->ctl[n].flags & WM8766_FLAG_VOL_UPDATE)  in snd_wm8766_ctl_put()
269 			snd_wm8766_write(wm, wm->ctl[n].reg2, val);  in snd_wm8766_ctl_put()
284 	cont.name = wm->ctl[num].name;  in snd_wm8766_add_control()
286 	if (wm->ctl[num].flags & WM8766_FLAG_LIM ||  in snd_wm8766_add_control()
287 	    wm->ctl[num].flags & WM8766_FLAG_ALC)  in snd_wm8766_add_control()
293 	switch (wm->ctl[num].type) {  in snd_wm8766_add_control()
297 		cont.tlv.p = wm->ctl[num].tlv;  in snd_wm8766_add_control()
300 		wm->ctl[num].max = 1;  in snd_wm8766_add_control()
301 		if (wm->ctl[num].flags & WM8766_FLAG_STEREO)  in snd_wm8766_add_control()
310 		return -EINVAL;  in snd_wm8766_add_control()
314 		return -ENOMEM;  in snd_wm8766_add_control()
315 	wm->ctl[num].kctl = ctl;  in snd_wm8766_add_control()
317 	return snd_ctl_add(wm->card, ctl);  in snd_wm8766_add_control()
325 		if (wm->ctl[i].name) {  in snd_wm8766_build_controls()