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-rw-r--r--sound/soc/soc-core.c334
1 files changed, 167 insertions, 167 deletions
diff --git a/sound/soc/soc-core.c b/sound/soc/soc-core.c
index 6e24654194ee..d81a16187769 100644
--- a/sound/soc/soc-core.c
+++ b/sound/soc/soc-core.c
@@ -80,6 +80,173 @@ static int run_delayed_work(struct delayed_work *dwork)
80 return ret; 80 return ret;
81} 81}
82 82
83/* codec register dump */
84static ssize_t soc_codec_reg_show(struct snd_soc_codec *codec, char *buf)
85{
86 int i, step = 1, count = 0;
87
88 if (!codec->reg_cache_size)
89 return 0;
90
91 if (codec->reg_cache_step)
92 step = codec->reg_cache_step;
93
94 count += sprintf(buf, "%s registers\n", codec->name);
95 for (i = 0; i < codec->reg_cache_size; i += step) {
96 if (codec->readable_register && !codec->readable_register(i))
97 continue;
98
99 count += sprintf(buf + count, "%2x: ", i);
100 if (count >= PAGE_SIZE - 1)
101 break;
102
103 if (codec->display_register)
104 count += codec->display_register(codec, buf + count,
105 PAGE_SIZE - count, i);
106 else
107 count += snprintf(buf + count, PAGE_SIZE - count,
108 "%4x", codec->read(codec, i));
109
110 if (count >= PAGE_SIZE - 1)
111 break;
112
113 count += snprintf(buf + count, PAGE_SIZE - count, "\n");
114 if (count >= PAGE_SIZE - 1)
115 break;
116 }
117
118 /* Truncate count; min() would cause a warning */
119 if (count >= PAGE_SIZE)
120 count = PAGE_SIZE - 1;
121
122 return count;
123}
124static ssize_t codec_reg_show(struct device *dev,
125 struct device_attribute *attr, char *buf)
126{
127 struct snd_soc_device *devdata = dev_get_drvdata(dev);
128 return soc_codec_reg_show(devdata->card->codec, buf);
129}
130
131static DEVICE_ATTR(codec_reg, 0444, codec_reg_show, NULL);
132
133#ifdef CONFIG_DEBUG_FS
134static int codec_reg_open_file(struct inode *inode, struct file *file)
135{
136 file->private_data = inode->i_private;
137 return 0;
138}
139
140static ssize_t codec_reg_read_file(struct file *file, char __user *user_buf,
141 size_t count, loff_t *ppos)
142{
143 ssize_t ret;
144 struct snd_soc_codec *codec = file->private_data;
145 char *buf = kmalloc(PAGE_SIZE, GFP_KERNEL);
146 if (!buf)
147 return -ENOMEM;
148 ret = soc_codec_reg_show(codec, buf);
149 if (ret >= 0)
150 ret = simple_read_from_buffer(user_buf, count, ppos, buf, ret);
151 kfree(buf);
152 return ret;
153}
154
155static ssize_t codec_reg_write_file(struct file *file,
156 const char __user *user_buf, size_t count, loff_t *ppos)
157{
158 char buf[32];
159 int buf_size;
160 char *start = buf;
161 unsigned long reg, value;
162 int step = 1;
163 struct snd_soc_codec *codec = file->private_data;
164
165 buf_size = min(count, (sizeof(buf)-1));
166 if (copy_from_user(buf, user_buf, buf_size))
167 return -EFAULT;
168 buf[buf_size] = 0;
169
170 if (codec->reg_cache_step)
171 step = codec->reg_cache_step;
172
173 while (*start == ' ')
174 start++;
175 reg = simple_strtoul(start, &start, 16);
176 if ((reg >= codec->reg_cache_size) || (reg % step))
177 return -EINVAL;
178 while (*start == ' ')
179 start++;
180 if (strict_strtoul(start, 16, &value))
181 return -EINVAL;
182 codec->write(codec, reg, value);
183 return buf_size;
184}
185
186static const struct file_operations codec_reg_fops = {
187 .open = codec_reg_open_file,
188 .read = codec_reg_read_file,
189 .write = codec_reg_write_file,
190};
191
192static void soc_init_codec_debugfs(struct snd_soc_codec *codec)
193{
194 char codec_root[128];
195
196 if (codec->dev)
197 snprintf(codec_root, sizeof(codec_root),
198 "%s.%s", codec->name, dev_name(codec->dev));
199 else
200 snprintf(codec_root, sizeof(codec_root),
201 "%s", codec->name);
202
203 codec->debugfs_codec_root = debugfs_create_dir(codec_root,
204 debugfs_root);
205 if (!codec->debugfs_codec_root) {
206 printk(KERN_WARNING
207 "ASoC: Failed to create codec debugfs directory\n");
208 return;
209 }
210
211 codec->debugfs_reg = debugfs_create_file("codec_reg", 0644,
212 codec->debugfs_codec_root,
213 codec, &codec_reg_fops);
214 if (!codec->debugfs_reg)
215 printk(KERN_WARNING
216 "ASoC: Failed to create codec register debugfs file\n");
217
218 codec->debugfs_pop_time = debugfs_create_u32("dapm_pop_time", 0744,
219 codec->debugfs_codec_root,
220 &codec->pop_time);
221 if (!codec->debugfs_pop_time)
222 printk(KERN_WARNING
223 "Failed to create pop time debugfs file\n");
224
225 codec->debugfs_dapm = debugfs_create_dir("dapm",
226 codec->debugfs_codec_root);
227 if (!codec->debugfs_dapm)
228 printk(KERN_WARNING
229 "Failed to create DAPM debugfs directory\n");
230
231 snd_soc_dapm_debugfs_init(codec);
232}
233
234static void soc_cleanup_codec_debugfs(struct snd_soc_codec *codec)
235{
236 debugfs_remove_recursive(codec->debugfs_codec_root);
237}
238
239#else
240
241static inline void soc_init_codec_debugfs(struct snd_soc_codec *codec)
242{
243}
244
245static inline void soc_cleanup_codec_debugfs(struct snd_soc_codec *codec)
246{
247}
248#endif
249
83#ifdef CONFIG_SND_SOC_AC97_BUS 250#ifdef CONFIG_SND_SOC_AC97_BUS
84/* unregister ac97 codec */ 251/* unregister ac97 codec */
85static int soc_ac97_dev_unregister(struct snd_soc_codec *codec) 252static int soc_ac97_dev_unregister(struct snd_soc_codec *codec)
@@ -1111,173 +1278,6 @@ int snd_soc_codec_volatile_register(struct snd_soc_codec *codec, int reg)
1111} 1278}
1112EXPORT_SYMBOL_GPL(snd_soc_codec_volatile_register); 1279EXPORT_SYMBOL_GPL(snd_soc_codec_volatile_register);
1113 1280
1114/* codec register dump */
1115static ssize_t soc_codec_reg_show(struct snd_soc_codec *codec, char *buf)
1116{
1117 int i, step = 1, count = 0;
1118
1119 if (!codec->reg_cache_size)
1120 return 0;
1121
1122 if (codec->reg_cache_step)
1123 step = codec->reg_cache_step;
1124
1125 count += sprintf(buf, "%s registers\n", codec->name);
1126 for (i = 0; i < codec->reg_cache_size; i += step) {
1127 if (codec->readable_register && !codec->readable_register(i))
1128 continue;
1129
1130 count += sprintf(buf + count, "%2x: ", i);
1131 if (count >= PAGE_SIZE - 1)
1132 break;
1133
1134 if (codec->display_register)
1135 count += codec->display_register(codec, buf + count,
1136 PAGE_SIZE - count, i);
1137 else
1138 count += snprintf(buf + count, PAGE_SIZE - count,
1139 "%4x", codec->read(codec, i));
1140
1141 if (count >= PAGE_SIZE - 1)
1142 break;
1143
1144 count += snprintf(buf + count, PAGE_SIZE - count, "\n");
1145 if (count >= PAGE_SIZE - 1)
1146 break;
1147 }
1148
1149 /* Truncate count; min() would cause a warning */
1150 if (count >= PAGE_SIZE)
1151 count = PAGE_SIZE - 1;
1152
1153 return count;
1154}
1155static ssize_t codec_reg_show(struct device *dev,
1156 struct device_attribute *attr, char *buf)
1157{
1158 struct snd_soc_device *devdata = dev_get_drvdata(dev);
1159 return soc_codec_reg_show(devdata->card->codec, buf);
1160}
1161
1162static DEVICE_ATTR(codec_reg, 0444, codec_reg_show, NULL);
1163
1164#ifdef CONFIG_DEBUG_FS
1165static int codec_reg_open_file(struct inode *inode, struct file *file)
1166{
1167 file->private_data = inode->i_private;
1168 return 0;
1169}
1170
1171static ssize_t codec_reg_read_file(struct file *file, char __user *user_buf,
1172 size_t count, loff_t *ppos)
1173{
1174 ssize_t ret;
1175 struct snd_soc_codec *codec = file->private_data;
1176 char *buf = kmalloc(PAGE_SIZE, GFP_KERNEL);
1177 if (!buf)
1178 return -ENOMEM;
1179 ret = soc_codec_reg_show(codec, buf);
1180 if (ret >= 0)
1181 ret = simple_read_from_buffer(user_buf, count, ppos, buf, ret);
1182 kfree(buf);
1183 return ret;
1184}
1185
1186static ssize_t codec_reg_write_file(struct file *file,
1187 const char __user *user_buf, size_t count, loff_t *ppos)
1188{
1189 char buf[32];
1190 int buf_size;
1191 char *start = buf;
1192 unsigned long reg, value;
1193 int step = 1;
1194 struct snd_soc_codec *codec = file->private_data;
1195
1196 buf_size = min(count, (sizeof(buf)-1));
1197 if (copy_from_user(buf, user_buf, buf_size))
1198 return -EFAULT;
1199 buf[buf_size] = 0;
1200
1201 if (codec->reg_cache_step)
1202 step = codec->reg_cache_step;
1203
1204 while (*start == ' ')
1205 start++;
1206 reg = simple_strtoul(start, &start, 16);
1207 if ((reg >= codec->reg_cache_size) || (reg % step))
1208 return -EINVAL;
1209 while (*start == ' ')
1210 start++;
1211 if (strict_strtoul(start, 16, &value))
1212 return -EINVAL;
1213 codec->write(codec, reg, value);
1214 return buf_size;
1215}
1216
1217static const struct file_operations codec_reg_fops = {
1218 .open = codec_reg_open_file,
1219 .read = codec_reg_read_file,
1220 .write = codec_reg_write_file,
1221};
1222
1223static void soc_init_codec_debugfs(struct snd_soc_codec *codec)
1224{
1225 char codec_root[128];
1226
1227 if (codec->dev)
1228 snprintf(codec_root, sizeof(codec_root),
1229 "%s.%s", codec->name, dev_name(codec->dev));
1230 else
1231 snprintf(codec_root, sizeof(codec_root),
1232 "%s", codec->name);
1233
1234 codec->debugfs_codec_root = debugfs_create_dir(codec_root,
1235 debugfs_root);
1236 if (!codec->debugfs_codec_root) {
1237 printk(KERN_WARNING
1238 "ASoC: Failed to create codec debugfs directory\n");
1239 return;
1240 }
1241
1242 codec->debugfs_reg = debugfs_create_file("codec_reg", 0644,
1243 codec->debugfs_codec_root,
1244 codec, &codec_reg_fops);
1245 if (!codec->debugfs_reg)
1246 printk(KERN_WARNING
1247 "ASoC: Failed to create codec register debugfs file\n");
1248
1249 codec->debugfs_pop_time = debugfs_create_u32("dapm_pop_time", 0744,
1250 codec->debugfs_codec_root,
1251 &codec->pop_time);
1252 if (!codec->debugfs_pop_time)
1253 printk(KERN_WARNING
1254 "Failed to create pop time debugfs file\n");
1255
1256 codec->debugfs_dapm = debugfs_create_dir("dapm",
1257 codec->debugfs_codec_root);
1258 if (!codec->debugfs_dapm)
1259 printk(KERN_WARNING
1260 "Failed to create DAPM debugfs directory\n");
1261
1262 snd_soc_dapm_debugfs_init(codec);
1263}
1264
1265static void soc_cleanup_codec_debugfs(struct snd_soc_codec *codec)
1266{
1267 debugfs_remove_recursive(codec->debugfs_codec_root);
1268}
1269
1270#else
1271
1272static inline void soc_init_codec_debugfs(struct snd_soc_codec *codec)
1273{
1274}
1275
1276static inline void soc_cleanup_codec_debugfs(struct snd_soc_codec *codec)
1277{
1278}
1279#endif
1280
1281/** 1281/**
1282 * snd_soc_new_ac97_codec - initailise AC97 device 1282 * snd_soc_new_ac97_codec - initailise AC97 device
1283 * @codec: audio codec 1283 * @codec: audio codec
generated by cgit v1.2.2 (git 2.25.0) at 2024-12-27 09:12:54 -0500