xref: /openbmc/linux/sound/pci/hda/patch_si3054.c (revision 7fe2f639)
1 /*
2  * Universal Interface for Intel High Definition Audio Codec
3  *
4  * HD audio interface patch for Silicon Labs 3054/5 modem codec
5  *
6  * Copyright (c) 2005 Sasha Khapyorsky <sashak@alsa-project.org>
7  *                    Takashi Iwai <tiwai@suse.de>
8  *
9  *
10  *  This driver is free software; you can redistribute it and/or modify
11  *  it under the terms of the GNU General Public License as published by
12  *  the Free Software Foundation; either version 2 of the License, or
13  *  (at your option) any later version.
14  *
15  *  This driver is distributed in the hope that it will be useful,
16  *  but WITHOUT ANY WARRANTY; without even the implied warranty of
17  *  MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
18  *  GNU General Public License for more details.
19  *
20  *  You should have received a copy of the GNU General Public License
21  *  along with this program; if not, write to the Free Software
22  *  Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA  02111-1307 USA
23  */
24 
25 #include <linux/init.h>
26 #include <linux/delay.h>
27 #include <linux/slab.h>
28 #include <sound/core.h>
29 #include "hda_codec.h"
30 #include "hda_local.h"
31 
32 /* si3054 verbs */
33 #define SI3054_VERB_READ_NODE  0x900
34 #define SI3054_VERB_WRITE_NODE 0x100
35 
36 /* si3054 nodes (registers) */
37 #define SI3054_EXTENDED_MID    2
38 #define SI3054_LINE_RATE       3
39 #define SI3054_LINE_LEVEL      4
40 #define SI3054_GPIO_CFG        5
41 #define SI3054_GPIO_POLARITY   6
42 #define SI3054_GPIO_STICKY     7
43 #define SI3054_GPIO_WAKEUP     8
44 #define SI3054_GPIO_STATUS     9
45 #define SI3054_GPIO_CONTROL   10
46 #define SI3054_MISC_AFE       11
47 #define SI3054_CHIPID         12
48 #define SI3054_LINE_CFG1      13
49 #define SI3054_LINE_STATUS    14
50 #define SI3054_DC_TERMINATION 15
51 #define SI3054_LINE_CONFIG    16
52 #define SI3054_CALLPROG_ATT   17
53 #define SI3054_SQ_CONTROL     18
54 #define SI3054_MISC_CONTROL   19
55 #define SI3054_RING_CTRL1     20
56 #define SI3054_RING_CTRL2     21
57 
58 /* extended MID */
59 #define SI3054_MEI_READY 0xf
60 
61 /* line level */
62 #define SI3054_ATAG_MASK 0x00f0
63 #define SI3054_DTAG_MASK 0xf000
64 
65 /* GPIO bits */
66 #define SI3054_GPIO_OH    0x0001
67 #define SI3054_GPIO_CID   0x0002
68 
69 /* chipid and revisions */
70 #define SI3054_CHIPID_CODEC_REV_MASK 0x000f
71 #define SI3054_CHIPID_DAA_REV_MASK   0x00f0
72 #define SI3054_CHIPID_INTERNATIONAL  0x0100
73 #define SI3054_CHIPID_DAA_ID         0x0f00
74 #define SI3054_CHIPID_CODEC_ID      (1<<12)
75 
76 /* si3054 codec registers (nodes) access macros */
77 #define GET_REG(codec,reg) (snd_hda_codec_read(codec,reg,0,SI3054_VERB_READ_NODE,0))
78 #define SET_REG(codec,reg,val) (snd_hda_codec_write(codec,reg,0,SI3054_VERB_WRITE_NODE,val))
79 #define SET_REG_CACHE(codec,reg,val) \
80 	snd_hda_codec_write_cache(codec,reg,0,SI3054_VERB_WRITE_NODE,val)
81 
82 
83 struct si3054_spec {
84 	unsigned international;
85 	struct hda_pcm pcm;
86 };
87 
88 
89 /*
90  * Modem mixer
91  */
92 
93 #define PRIVATE_VALUE(reg,mask) ((reg<<16)|(mask&0xffff))
94 #define PRIVATE_REG(val) ((val>>16)&0xffff)
95 #define PRIVATE_MASK(val) (val&0xffff)
96 
97 #define si3054_switch_info	snd_ctl_boolean_mono_info
98 
99 static int si3054_switch_get(struct snd_kcontrol *kcontrol,
100 		               struct snd_ctl_elem_value *uvalue)
101 {
102 	struct hda_codec *codec = snd_kcontrol_chip(kcontrol);
103 	u16 reg  = PRIVATE_REG(kcontrol->private_value);
104 	u16 mask = PRIVATE_MASK(kcontrol->private_value);
105 	uvalue->value.integer.value[0] = (GET_REG(codec, reg)) & mask ? 1 : 0 ;
106 	return 0;
107 }
108 
109 static int si3054_switch_put(struct snd_kcontrol *kcontrol,
110 		               struct snd_ctl_elem_value *uvalue)
111 {
112 	struct hda_codec *codec = snd_kcontrol_chip(kcontrol);
113 	u16 reg  = PRIVATE_REG(kcontrol->private_value);
114 	u16 mask = PRIVATE_MASK(kcontrol->private_value);
115 	if (uvalue->value.integer.value[0])
116 		SET_REG_CACHE(codec, reg, (GET_REG(codec, reg)) | mask);
117 	else
118 		SET_REG_CACHE(codec, reg, (GET_REG(codec, reg)) & ~mask);
119 	return 0;
120 }
121 
122 #define SI3054_KCONTROL(kname,reg,mask) { \
123 	.iface = SNDRV_CTL_ELEM_IFACE_MIXER, \
124 	.name = kname, \
125 	.subdevice = HDA_SUBDEV_NID_FLAG | reg, \
126 	.info = si3054_switch_info, \
127 	.get  = si3054_switch_get, \
128 	.put  = si3054_switch_put, \
129 	.private_value = PRIVATE_VALUE(reg,mask), \
130 }
131 
132 
133 static const struct snd_kcontrol_new si3054_modem_mixer[] = {
134 	SI3054_KCONTROL("Off-hook Switch", SI3054_GPIO_CONTROL, SI3054_GPIO_OH),
135 	SI3054_KCONTROL("Caller ID Switch", SI3054_GPIO_CONTROL, SI3054_GPIO_CID),
136 	{}
137 };
138 
139 static int si3054_build_controls(struct hda_codec *codec)
140 {
141 	return snd_hda_add_new_ctls(codec, si3054_modem_mixer);
142 }
143 
144 
145 /*
146  * PCM callbacks
147  */
148 
149 static int si3054_pcm_prepare(struct hda_pcm_stream *hinfo,
150 			      struct hda_codec *codec,
151 			      unsigned int stream_tag,
152 			      unsigned int format,
153 			      struct snd_pcm_substream *substream)
154 {
155 	u16 val;
156 
157 	SET_REG(codec, SI3054_LINE_RATE, substream->runtime->rate);
158 	val = GET_REG(codec, SI3054_LINE_LEVEL);
159 	val &= 0xff << (8 * (substream->stream != SNDRV_PCM_STREAM_PLAYBACK));
160 	val |= ((stream_tag & 0xf) << 4) << (8 * (substream->stream == SNDRV_PCM_STREAM_PLAYBACK));
161 	SET_REG(codec, SI3054_LINE_LEVEL, val);
162 
163 	snd_hda_codec_setup_stream(codec, hinfo->nid,
164 				   stream_tag, 0, format);
165 	return 0;
166 }
167 
168 static int si3054_pcm_open(struct hda_pcm_stream *hinfo,
169 			   struct hda_codec *codec,
170 			    struct snd_pcm_substream *substream)
171 {
172 	static unsigned int rates[] = { 8000, 9600, 16000 };
173 	static struct snd_pcm_hw_constraint_list hw_constraints_rates = {
174 		.count = ARRAY_SIZE(rates),
175 		.list = rates,
176 		.mask = 0,
177 	};
178 	substream->runtime->hw.period_bytes_min = 80;
179 	return snd_pcm_hw_constraint_list(substream->runtime, 0,
180 			SNDRV_PCM_HW_PARAM_RATE, &hw_constraints_rates);
181 }
182 
183 
184 static const struct hda_pcm_stream si3054_pcm = {
185 	.substreams = 1,
186 	.channels_min = 1,
187 	.channels_max = 1,
188 	.nid = 0x1,
189 	.rates = SNDRV_PCM_RATE_8000|SNDRV_PCM_RATE_16000|SNDRV_PCM_RATE_KNOT,
190 	.formats = SNDRV_PCM_FMTBIT_S16_LE,
191 	.maxbps = 16,
192 	.ops = {
193 		.open = si3054_pcm_open,
194 		.prepare = si3054_pcm_prepare,
195 	},
196 };
197 
198 
199 static int si3054_build_pcms(struct hda_codec *codec)
200 {
201 	struct si3054_spec *spec = codec->spec;
202 	struct hda_pcm *info = &spec->pcm;
203 	codec->num_pcms = 1;
204 	codec->pcm_info = info;
205 	info->name = "Si3054 Modem";
206 	info->stream[SNDRV_PCM_STREAM_PLAYBACK] = si3054_pcm;
207 	info->stream[SNDRV_PCM_STREAM_CAPTURE]  = si3054_pcm;
208 	info->stream[SNDRV_PCM_STREAM_PLAYBACK].nid = codec->mfg;
209 	info->stream[SNDRV_PCM_STREAM_CAPTURE].nid = codec->mfg;
210 	info->pcm_type = HDA_PCM_TYPE_MODEM;
211 	return 0;
212 }
213 
214 
215 /*
216  * Init part
217  */
218 
219 static int si3054_init(struct hda_codec *codec)
220 {
221 	struct si3054_spec *spec = codec->spec;
222 	unsigned wait_count;
223 	u16 val;
224 
225 	snd_hda_codec_write(codec, AC_NODE_ROOT, 0, AC_VERB_SET_CODEC_RESET, 0);
226 	snd_hda_codec_write(codec, codec->mfg, 0, AC_VERB_SET_STREAM_FORMAT, 0);
227 	SET_REG(codec, SI3054_LINE_RATE, 9600);
228 	SET_REG(codec, SI3054_LINE_LEVEL, SI3054_DTAG_MASK|SI3054_ATAG_MASK);
229 	SET_REG(codec, SI3054_EXTENDED_MID, 0);
230 
231 	wait_count = 10;
232 	do {
233 		msleep(2);
234 		val = GET_REG(codec, SI3054_EXTENDED_MID);
235 	} while ((val & SI3054_MEI_READY) != SI3054_MEI_READY && wait_count--);
236 
237 	if((val&SI3054_MEI_READY) != SI3054_MEI_READY) {
238 		snd_printk(KERN_ERR "si3054: cannot initialize. EXT MID = %04x\n", val);
239 		/* let's pray that this is no fatal error */
240 		/* return -EACCES; */
241 	}
242 
243 	SET_REG(codec, SI3054_GPIO_POLARITY, 0xffff);
244 	SET_REG(codec, SI3054_GPIO_CFG, 0x0);
245 	SET_REG(codec, SI3054_MISC_AFE, 0);
246 	SET_REG(codec, SI3054_LINE_CFG1,0x200);
247 
248 	if((GET_REG(codec,SI3054_LINE_STATUS) & (1<<6)) == 0) {
249 		snd_printd("Link Frame Detect(FDT) is not ready (line status: %04x)\n",
250 				GET_REG(codec,SI3054_LINE_STATUS));
251 	}
252 
253 	spec->international = GET_REG(codec, SI3054_CHIPID) & SI3054_CHIPID_INTERNATIONAL;
254 
255 	return 0;
256 }
257 
258 static void si3054_free(struct hda_codec *codec)
259 {
260 	kfree(codec->spec);
261 }
262 
263 
264 /*
265  */
266 
267 static const struct hda_codec_ops si3054_patch_ops = {
268 	.build_controls = si3054_build_controls,
269 	.build_pcms = si3054_build_pcms,
270 	.init = si3054_init,
271 	.free = si3054_free,
272 };
273 
274 static int patch_si3054(struct hda_codec *codec)
275 {
276 	struct si3054_spec *spec = kzalloc(sizeof(*spec), GFP_KERNEL);
277 	if (spec == NULL)
278 		return -ENOMEM;
279 	codec->spec = spec;
280 	codec->patch_ops = si3054_patch_ops;
281 	return 0;
282 }
283 
284 /*
285  * patch entries
286  */
287 static const struct hda_codec_preset snd_hda_preset_si3054[] = {
288  	{ .id = 0x163c3055, .name = "Si3054", .patch = patch_si3054 },
289  	{ .id = 0x163c3155, .name = "Si3054", .patch = patch_si3054 },
290  	{ .id = 0x11c13026, .name = "Si3054", .patch = patch_si3054 },
291  	{ .id = 0x11c13055, .name = "Si3054", .patch = patch_si3054 },
292  	{ .id = 0x11c13155, .name = "Si3054", .patch = patch_si3054 },
293  	{ .id = 0x10573055, .name = "Si3054", .patch = patch_si3054 },
294  	{ .id = 0x10573057, .name = "Si3054", .patch = patch_si3054 },
295  	{ .id = 0x10573155, .name = "Si3054", .patch = patch_si3054 },
296 	/* VIA HDA on Clevo m540 */
297 	{ .id = 0x11063288, .name = "Si3054", .patch = patch_si3054 },
298 	/* Asus A8J Modem (SM56) */
299 	{ .id = 0x15433155, .name = "Si3054", .patch = patch_si3054 },
300 	/* LG LW20 modem */
301 	{ .id = 0x18540018, .name = "Si3054", .patch = patch_si3054 },
302 	{}
303 };
304 
305 MODULE_ALIAS("snd-hda-codec-id:163c3055");
306 MODULE_ALIAS("snd-hda-codec-id:163c3155");
307 MODULE_ALIAS("snd-hda-codec-id:11c13026");
308 MODULE_ALIAS("snd-hda-codec-id:11c13055");
309 MODULE_ALIAS("snd-hda-codec-id:11c13155");
310 MODULE_ALIAS("snd-hda-codec-id:10573055");
311 MODULE_ALIAS("snd-hda-codec-id:10573057");
312 MODULE_ALIAS("snd-hda-codec-id:10573155");
313 MODULE_ALIAS("snd-hda-codec-id:11063288");
314 MODULE_ALIAS("snd-hda-codec-id:15433155");
315 MODULE_ALIAS("snd-hda-codec-id:18540018");
316 
317 MODULE_LICENSE("GPL");
318 MODULE_DESCRIPTION("Si3054 HD-audio modem codec");
319 
320 static struct hda_codec_preset_list si3054_list = {
321 	.preset = snd_hda_preset_si3054,
322 	.owner = THIS_MODULE,
323 };
324 
325 static int __init patch_si3054_init(void)
326 {
327 	return snd_hda_add_codec_preset(&si3054_list);
328 }
329 
330 static void __exit patch_si3054_exit(void)
331 {
332 	snd_hda_delete_codec_preset(&si3054_list);
333 }
334 
335 module_init(patch_si3054_init)
336 module_exit(patch_si3054_exit)
337