1 // SPDX-License-Identifier: GPL-2.0-or-later 2 /* 3 * Universal Interface for Intel High Definition Audio Codec 4 * 5 * HD audio interface patch for Silicon Labs 3054/5 modem codec 6 * 7 * Copyright (c) 2005 Sasha Khapyorsky <sashak@alsa-project.org> 8 * Takashi Iwai <tiwai@suse.de> 9 */ 10 11 #include <linux/init.h> 12 #include <linux/delay.h> 13 #include <linux/slab.h> 14 #include <linux/module.h> 15 #include <sound/core.h> 16 #include <sound/hda_codec.h> 17 #include "hda_local.h" 18 19 /* si3054 verbs */ 20 #define SI3054_VERB_READ_NODE 0x900 21 #define SI3054_VERB_WRITE_NODE 0x100 22 23 /* si3054 nodes (registers) */ 24 #define SI3054_EXTENDED_MID 2 25 #define SI3054_LINE_RATE 3 26 #define SI3054_LINE_LEVEL 4 27 #define SI3054_GPIO_CFG 5 28 #define SI3054_GPIO_POLARITY 6 29 #define SI3054_GPIO_STICKY 7 30 #define SI3054_GPIO_WAKEUP 8 31 #define SI3054_GPIO_STATUS 9 32 #define SI3054_GPIO_CONTROL 10 33 #define SI3054_MISC_AFE 11 34 #define SI3054_CHIPID 12 35 #define SI3054_LINE_CFG1 13 36 #define SI3054_LINE_STATUS 14 37 #define SI3054_DC_TERMINATION 15 38 #define SI3054_LINE_CONFIG 16 39 #define SI3054_CALLPROG_ATT 17 40 #define SI3054_SQ_CONTROL 18 41 #define SI3054_MISC_CONTROL 19 42 #define SI3054_RING_CTRL1 20 43 #define SI3054_RING_CTRL2 21 44 45 /* extended MID */ 46 #define SI3054_MEI_READY 0xf 47 48 /* line level */ 49 #define SI3054_ATAG_MASK 0x00f0 50 #define SI3054_DTAG_MASK 0xf000 51 52 /* GPIO bits */ 53 #define SI3054_GPIO_OH 0x0001 54 #define SI3054_GPIO_CID 0x0002 55 56 /* chipid and revisions */ 57 #define SI3054_CHIPID_CODEC_REV_MASK 0x000f 58 #define SI3054_CHIPID_DAA_REV_MASK 0x00f0 59 #define SI3054_CHIPID_INTERNATIONAL 0x0100 60 #define SI3054_CHIPID_DAA_ID 0x0f00 61 #define SI3054_CHIPID_CODEC_ID (1<<12) 62 63 /* si3054 codec registers (nodes) access macros */ 64 #define GET_REG(codec,reg) (snd_hda_codec_read(codec,reg,0,SI3054_VERB_READ_NODE,0)) 65 #define SET_REG(codec,reg,val) (snd_hda_codec_write(codec,reg,0,SI3054_VERB_WRITE_NODE,val)) 66 #define SET_REG_CACHE(codec,reg,val) \ 67 snd_hda_codec_write_cache(codec,reg,0,SI3054_VERB_WRITE_NODE,val) 68 69 70 struct si3054_spec { 71 unsigned international; 72 }; 73 74 75 /* 76 * Modem mixer 77 */ 78 79 #define PRIVATE_VALUE(reg,mask) ((reg<<16)|(mask&0xffff)) 80 #define PRIVATE_REG(val) ((val>>16)&0xffff) 81 #define PRIVATE_MASK(val) (val&0xffff) 82 83 #define si3054_switch_info snd_ctl_boolean_mono_info 84 85 static int si3054_switch_get(struct snd_kcontrol *kcontrol, 86 struct snd_ctl_elem_value *uvalue) 87 { 88 struct hda_codec *codec = snd_kcontrol_chip(kcontrol); 89 u16 reg = PRIVATE_REG(kcontrol->private_value); 90 u16 mask = PRIVATE_MASK(kcontrol->private_value); 91 uvalue->value.integer.value[0] = (GET_REG(codec, reg)) & mask ? 1 : 0 ; 92 return 0; 93 } 94 95 static int si3054_switch_put(struct snd_kcontrol *kcontrol, 96 struct snd_ctl_elem_value *uvalue) 97 { 98 struct hda_codec *codec = snd_kcontrol_chip(kcontrol); 99 u16 reg = PRIVATE_REG(kcontrol->private_value); 100 u16 mask = PRIVATE_MASK(kcontrol->private_value); 101 if (uvalue->value.integer.value[0]) 102 SET_REG_CACHE(codec, reg, (GET_REG(codec, reg)) | mask); 103 else 104 SET_REG_CACHE(codec, reg, (GET_REG(codec, reg)) & ~mask); 105 return 0; 106 } 107 108 #define SI3054_KCONTROL(kname,reg,mask) { \ 109 .iface = SNDRV_CTL_ELEM_IFACE_MIXER, \ 110 .name = kname, \ 111 .subdevice = HDA_SUBDEV_NID_FLAG | reg, \ 112 .info = si3054_switch_info, \ 113 .get = si3054_switch_get, \ 114 .put = si3054_switch_put, \ 115 .private_value = PRIVATE_VALUE(reg,mask), \ 116 } 117 118 119 static const struct snd_kcontrol_new si3054_modem_mixer[] = { 120 SI3054_KCONTROL("Off-hook Switch", SI3054_GPIO_CONTROL, SI3054_GPIO_OH), 121 SI3054_KCONTROL("Caller ID Switch", SI3054_GPIO_CONTROL, SI3054_GPIO_CID), 122 {} 123 }; 124 125 static int si3054_build_controls(struct hda_codec *codec) 126 { 127 return snd_hda_add_new_ctls(codec, si3054_modem_mixer); 128 } 129 130 131 /* 132 * PCM callbacks 133 */ 134 135 static int si3054_pcm_prepare(struct hda_pcm_stream *hinfo, 136 struct hda_codec *codec, 137 unsigned int stream_tag, 138 unsigned int format, 139 struct snd_pcm_substream *substream) 140 { 141 u16 val; 142 143 SET_REG(codec, SI3054_LINE_RATE, substream->runtime->rate); 144 val = GET_REG(codec, SI3054_LINE_LEVEL); 145 val &= 0xff << (8 * (substream->stream != SNDRV_PCM_STREAM_PLAYBACK)); 146 val |= ((stream_tag & 0xf) << 4) << (8 * (substream->stream == SNDRV_PCM_STREAM_PLAYBACK)); 147 SET_REG(codec, SI3054_LINE_LEVEL, val); 148 149 snd_hda_codec_setup_stream(codec, hinfo->nid, 150 stream_tag, 0, format); 151 return 0; 152 } 153 154 static int si3054_pcm_open(struct hda_pcm_stream *hinfo, 155 struct hda_codec *codec, 156 struct snd_pcm_substream *substream) 157 { 158 static const unsigned int rates[] = { 8000, 9600, 16000 }; 159 static const struct snd_pcm_hw_constraint_list hw_constraints_rates = { 160 .count = ARRAY_SIZE(rates), 161 .list = rates, 162 .mask = 0, 163 }; 164 substream->runtime->hw.period_bytes_min = 80; 165 return snd_pcm_hw_constraint_list(substream->runtime, 0, 166 SNDRV_PCM_HW_PARAM_RATE, &hw_constraints_rates); 167 } 168 169 170 static const struct hda_pcm_stream si3054_pcm = { 171 .substreams = 1, 172 .channels_min = 1, 173 .channels_max = 1, 174 .nid = 0x1, 175 .rates = SNDRV_PCM_RATE_8000|SNDRV_PCM_RATE_16000|SNDRV_PCM_RATE_KNOT, 176 .formats = SNDRV_PCM_FMTBIT_S16_LE, 177 .maxbps = 16, 178 .ops = { 179 .open = si3054_pcm_open, 180 .prepare = si3054_pcm_prepare, 181 }, 182 }; 183 184 185 static int si3054_build_pcms(struct hda_codec *codec) 186 { 187 struct hda_pcm *info; 188 189 info = snd_hda_codec_pcm_new(codec, "Si3054 Modem"); 190 if (!info) 191 return -ENOMEM; 192 info->stream[SNDRV_PCM_STREAM_PLAYBACK] = si3054_pcm; 193 info->stream[SNDRV_PCM_STREAM_CAPTURE] = si3054_pcm; 194 info->stream[SNDRV_PCM_STREAM_PLAYBACK].nid = codec->core.mfg; 195 info->stream[SNDRV_PCM_STREAM_CAPTURE].nid = codec->core.mfg; 196 info->pcm_type = HDA_PCM_TYPE_MODEM; 197 return 0; 198 } 199 200 201 /* 202 * Init part 203 */ 204 205 static int si3054_init(struct hda_codec *codec) 206 { 207 struct si3054_spec *spec = codec->spec; 208 unsigned wait_count; 209 u16 val; 210 211 if (snd_hdac_regmap_add_vendor_verb(&codec->core, 212 SI3054_VERB_WRITE_NODE)) 213 return -ENOMEM; 214 215 snd_hda_codec_write(codec, AC_NODE_ROOT, 0, AC_VERB_SET_CODEC_RESET, 0); 216 snd_hda_codec_write(codec, codec->core.mfg, 0, AC_VERB_SET_STREAM_FORMAT, 0); 217 SET_REG(codec, SI3054_LINE_RATE, 9600); 218 SET_REG(codec, SI3054_LINE_LEVEL, SI3054_DTAG_MASK|SI3054_ATAG_MASK); 219 SET_REG(codec, SI3054_EXTENDED_MID, 0); 220 221 wait_count = 10; 222 do { 223 msleep(2); 224 val = GET_REG(codec, SI3054_EXTENDED_MID); 225 } while ((val & SI3054_MEI_READY) != SI3054_MEI_READY && wait_count--); 226 227 if((val&SI3054_MEI_READY) != SI3054_MEI_READY) { 228 codec_err(codec, "si3054: cannot initialize. EXT MID = %04x\n", val); 229 /* let's pray that this is no fatal error */ 230 /* return -EACCES; */ 231 } 232 233 SET_REG(codec, SI3054_GPIO_POLARITY, 0xffff); 234 SET_REG(codec, SI3054_GPIO_CFG, 0x0); 235 SET_REG(codec, SI3054_MISC_AFE, 0); 236 SET_REG(codec, SI3054_LINE_CFG1,0x200); 237 238 if((GET_REG(codec,SI3054_LINE_STATUS) & (1<<6)) == 0) { 239 codec_dbg(codec, 240 "Link Frame Detect(FDT) is not ready (line status: %04x)\n", 241 GET_REG(codec,SI3054_LINE_STATUS)); 242 } 243 244 spec->international = GET_REG(codec, SI3054_CHIPID) & SI3054_CHIPID_INTERNATIONAL; 245 246 return 0; 247 } 248 249 static void si3054_free(struct hda_codec *codec) 250 { 251 kfree(codec->spec); 252 } 253 254 255 /* 256 */ 257 258 static const struct hda_codec_ops si3054_patch_ops = { 259 .build_controls = si3054_build_controls, 260 .build_pcms = si3054_build_pcms, 261 .init = si3054_init, 262 .free = si3054_free, 263 }; 264 265 static int patch_si3054(struct hda_codec *codec) 266 { 267 struct si3054_spec *spec = kzalloc(sizeof(*spec), GFP_KERNEL); 268 if (spec == NULL) 269 return -ENOMEM; 270 codec->spec = spec; 271 codec->patch_ops = si3054_patch_ops; 272 return 0; 273 } 274 275 /* 276 * patch entries 277 */ 278 static const struct hda_device_id snd_hda_id_si3054[] = { 279 HDA_CODEC_ENTRY(0x163c3055, "Si3054", patch_si3054), 280 HDA_CODEC_ENTRY(0x163c3155, "Si3054", patch_si3054), 281 HDA_CODEC_ENTRY(0x11c13026, "Si3054", patch_si3054), 282 HDA_CODEC_ENTRY(0x11c13055, "Si3054", patch_si3054), 283 HDA_CODEC_ENTRY(0x11c13155, "Si3054", patch_si3054), 284 HDA_CODEC_ENTRY(0x10573055, "Si3054", patch_si3054), 285 HDA_CODEC_ENTRY(0x10573057, "Si3054", patch_si3054), 286 HDA_CODEC_ENTRY(0x10573155, "Si3054", patch_si3054), 287 /* VIA HDA on Clevo m540 */ 288 HDA_CODEC_ENTRY(0x11063288, "Si3054", patch_si3054), 289 /* Asus A8J Modem (SM56) */ 290 HDA_CODEC_ENTRY(0x15433155, "Si3054", patch_si3054), 291 /* LG LW20 modem */ 292 HDA_CODEC_ENTRY(0x18540018, "Si3054", patch_si3054), 293 {} 294 }; 295 MODULE_DEVICE_TABLE(hdaudio, snd_hda_id_si3054); 296 297 MODULE_LICENSE("GPL"); 298 MODULE_DESCRIPTION("Si3054 HD-audio modem codec"); 299 300 static struct hda_codec_driver si3054_driver = { 301 .id = snd_hda_id_si3054, 302 }; 303 304 module_hda_codec_driver(si3054_driver); 305