1 /* $NetBSD: sun4i_a10_codec.c,v 1.3 2019/05/08 13:40:14 isaki Exp $ */
2
3 /*-
4 * Copyright (c) 2014-2017 Jared McNeill <jmcneill@invisible.ca>
5 * All rights reserved.
6 *
7 * Redistribution and use in source and binary forms, with or without
8 * modification, are permitted provided that the following conditions
9 * are met:
10 * 1. Redistributions of source code must retain the above copyright
11 * notice, this list of conditions and the following disclaimer.
12 * 2. Redistributions in binary form must reproduce the above copyright
13 * notice, this list of conditions and the following disclaimer in the
14 * documentation and/or other materials provided with the distribution.
15 *
16 * THIS SOFTWARE IS PROVIDED BY THE AUTHOR ``AS IS'' AND ANY EXPRESS OR
17 * IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES
18 * OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED.
19 * IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR ANY DIRECT, INDIRECT,
20 * INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING,
21 * BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES;
22 * LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED
23 * AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY,
24 * OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
25 * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
26 * SUCH DAMAGE.
27 */
28
29 #include <sys/cdefs.h>
30 __KERNEL_RCSID(0, "$NetBSD: sun4i_a10_codec.c,v 1.3 2019/05/08 13:40:14 isaki Exp $");
31
32 #include <sys/param.h>
33 #include <sys/bus.h>
34 #include <sys/cpu.h>
35 #include <sys/device.h>
36 #include <sys/kmem.h>
37 #include <sys/bitops.h>
38
39 #include <sys/audioio.h>
40 #include <dev/audio/audio_if.h>
41
42 #include <arm/sunxi/sunxi_codec.h>
43
44 #define A10_DEFAULT_PAVOL 0x20
45
46 #define A10_DAC_ACTRL 0x10
47 #define A10_DACAREN __BIT(31)
48 #define A10_DACALEN __BIT(30)
49 #define A10_MIXEN __BIT(29)
50 #define A10_LNG __BIT(26)
51 #define A10_FMG __BITS(25,23)
52 #define A10_MICG __BITS(22,20)
53 #define A10_LLNS __BIT(19)
54 #define A10_RLNS __BIT(18)
55 #define A10_LFMS __BIT(17)
56 #define A10_RFMS __BIT(16)
57 #define A10_LDACLMIXS __BIT(15)
58 #define A10_RDACRMIXS __BIT(14)
59 #define A10_LDACRMIXS __BIT(13)
60 #define A10_MICLS __BIT(12)
61 #define A10_MICRS __BIT(11)
62 #define A10_DACPAS __BIT(8)
63 #define A10_MIXPAS __BIT(7)
64 #define A10_PAMUTE __BIT(6)
65 #define A10_PAVOL __BITS(5,0)
66
67 #define A10_ADC_ACTRL 0x28
68 #define A10_ADCREN __BIT(31)
69 #define A10_ADCLEN __BIT(30)
70 #define A10_PREG1EN __BIT(29)
71 #define A10_PREG2EN __BIT(28)
72 #define A10_VMICEN __BIT(27)
73 #define A10_PREG1 __BITS(26,25)
74 #define A10_PREG2 __BITS(24,23)
75 #define A10_ADCG __BITS(22,20)
76 #define A10_ADCIS __BITS(19,17)
77 #define A10_LNRDF __BIT(16)
78 #define A10_LNPREG __BITS(15,13)
79 #define A10_MIC1NEN __BIT(12)
80 #define A10_DITHER __BIT(8)
81 #define A10_PA_EN __BIT(4)
82 #define A10_DDE __BIT(3)
83 #define A10_COMPTEN __BIT(2)
84 #define A10_PTDBS __BITS(1,0)
85
86 enum a10_codec_mixer_ctrl {
87 A10_CODEC_OUTPUT_CLASS,
88 A10_CODEC_INPUT_CLASS,
89
90 A10_CODEC_OUTPUT_MASTER_VOLUME,
91 A10_CODEC_INPUT_DAC_VOLUME,
92
93 A10_CODEC_MIXER_CTRL_LAST
94 };
95
96 static const struct a10_codec_mixer {
97 const char * name;
98 enum a10_codec_mixer_ctrl mixer_class;
99 u_int reg;
100 u_int mask;
101 } a10_codec_mixers[A10_CODEC_MIXER_CTRL_LAST] = {
102 [A10_CODEC_OUTPUT_MASTER_VOLUME] = { AudioNmaster,
103 A10_CODEC_OUTPUT_CLASS, A10_DAC_ACTRL, A10_PAVOL },
104 [A10_CODEC_INPUT_DAC_VOLUME] = { AudioNdac,
105 A10_CODEC_INPUT_CLASS, A10_DAC_ACTRL, A10_PAVOL },
106 };
107
108 #define RD4(sc, reg) \
109 bus_space_read_4((sc)->sc_bst, (sc)->sc_bsh, (reg))
110 #define WR4(sc, reg, val) \
111 bus_space_write_4((sc)->sc_bst, (sc)->sc_bsh, (reg), (val))
112 #define SET4(sc, reg, mask) \
113 WR4((sc), (reg), RD4((sc), (reg)) | (mask))
114 #define CLR4(sc, reg, mask) \
115 WR4((sc), (reg), RD4((sc), (reg)) & ~(mask))
116
117 static int
a10_codec_init(struct sunxi_codec_softc * sc)118 a10_codec_init(struct sunxi_codec_softc *sc)
119 {
120
121 /* Unmute PA */
122 SET4(sc, A10_DAC_ACTRL, A10_PAMUTE);
123
124 /* Set initial volume */
125 CLR4(sc, A10_DAC_ACTRL, A10_PAVOL);
126 SET4(sc, A10_DAC_ACTRL, __SHIFTIN(A10_DEFAULT_PAVOL, A10_PAVOL));
127
128 /* Enable DAC analog l/r channels and output mixer */
129 SET4(sc, A10_DAC_ACTRL, A10_DACAREN | A10_DACALEN | A10_DACPAS);
130
131 /* Enable ADC analog l/r channels */
132 SET4(sc, A10_ADC_ACTRL, A10_ADCREN | A10_ADCLEN);
133
134 /* Enable PA */
135 SET4(sc, A10_ADC_ACTRL, A10_PA_EN);
136
137 return 0;
138 }
139
140 static void
a10_codec_mute(struct sunxi_codec_softc * sc,int mute,u_int mode)141 a10_codec_mute(struct sunxi_codec_softc *sc, int mute, u_int mode)
142 {
143 if (mode == AUMODE_PLAY) {
144 if (sc->sc_pin_pa != NULL)
145 fdtbus_gpio_write(sc->sc_pin_pa, !mute);
146 }
147 }
148
149 static int
a10_codec_set_port(struct sunxi_codec_softc * sc,mixer_ctrl_t * mc)150 a10_codec_set_port(struct sunxi_codec_softc *sc, mixer_ctrl_t *mc)
151 {
152 const struct a10_codec_mixer *mix;
153 u_int val, shift;
154 int nvol;
155
156 switch (mc->dev) {
157 case A10_CODEC_OUTPUT_MASTER_VOLUME:
158 case A10_CODEC_INPUT_DAC_VOLUME:
159 mix = &a10_codec_mixers[mc->dev];
160 val = RD4(sc, mix->reg);
161 shift = 8 - fls32(__SHIFTOUT_MASK(mix->mask));
162 nvol = mc->un.value.level[AUDIO_MIXER_LEVEL_LEFT] >> shift;
163 val &= ~mix->mask;
164 val |= __SHIFTIN(nvol, mix->mask);
165 WR4(sc, mix->reg, val);
166 return 0;
167 }
168
169 return ENXIO;
170 }
171
172 static int
a10_codec_get_port(struct sunxi_codec_softc * sc,mixer_ctrl_t * mc)173 a10_codec_get_port(struct sunxi_codec_softc *sc, mixer_ctrl_t *mc)
174 {
175 const struct a10_codec_mixer *mix;
176 u_int val, shift;
177 int nvol;
178
179 switch (mc->dev) {
180 case A10_CODEC_OUTPUT_MASTER_VOLUME:
181 case A10_CODEC_INPUT_DAC_VOLUME:
182 mix = &a10_codec_mixers[mc->dev];
183 val = RD4(sc, mix->reg);
184 shift = 8 - fls32(__SHIFTOUT_MASK(mix->mask));
185 nvol = __SHIFTOUT(val, mix->mask) << shift;
186 mc->un.value.level[AUDIO_MIXER_LEVEL_LEFT] = nvol;
187 mc->un.value.level[AUDIO_MIXER_LEVEL_RIGHT] = nvol;
188 return 0;
189 }
190
191 return ENXIO;
192 }
193
194 static int
a10_codec_query_devinfo(struct sunxi_codec_softc * sc,mixer_devinfo_t * di)195 a10_codec_query_devinfo(struct sunxi_codec_softc *sc, mixer_devinfo_t *di)
196 {
197 const struct a10_codec_mixer *mix;
198
199 switch (di->index) {
200 case A10_CODEC_OUTPUT_CLASS:
201 di->mixer_class = di->index;
202 strcpy(di->label.name, AudioCoutputs);
203 di->type = AUDIO_MIXER_CLASS;
204 di->next = di->prev = AUDIO_MIXER_LAST;
205 return 0;
206
207 case A10_CODEC_INPUT_CLASS:
208 di->mixer_class = di->index;
209 strcpy(di->label.name, AudioCinputs);
210 di->type = AUDIO_MIXER_CLASS;
211 di->next = di->prev = AUDIO_MIXER_LAST;
212 return 0;
213
214 case A10_CODEC_OUTPUT_MASTER_VOLUME:
215 case A10_CODEC_INPUT_DAC_VOLUME:
216 mix = &a10_codec_mixers[di->index];
217 di->mixer_class = mix->mixer_class;
218 strcpy(di->label.name, mix->name);
219 di->un.v.delta =
220 256 / (__SHIFTOUT_MASK(mix->mask) + 1);
221 di->type = AUDIO_MIXER_VALUE;
222 di->next = di->prev = AUDIO_MIXER_LAST;
223 di->un.v.num_channels = 2;
224 strcpy(di->un.v.units.name, AudioNvolume);
225 return 0;
226 }
227
228 return ENXIO;
229 }
230
231 const struct sunxi_codec_conf sun4i_a10_codecconf = {
232 .name = "A10 Audio Codec",
233
234 .init = a10_codec_init,
235 .mute = a10_codec_mute,
236 .set_port = a10_codec_set_port,
237 .get_port = a10_codec_get_port,
238 .query_devinfo = a10_codec_query_devinfo,
239
240 .DPC = 0x00,
241 .DAC_FIFOC = 0x04,
242 .DAC_FIFOS = 0x08,
243 .DAC_TXDATA = 0x0c,
244 .ADC_FIFOC = 0x1c,
245 .ADC_FIFOS = 0x20,
246 .ADC_RXDATA = 0x24,
247 .DAC_CNT = 0x30,
248 .ADC_CNT = 0x34,
249 };
250