Orange Pi5 kernel

^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300   1) // SPDX-License-Identifier: GPL-2.0-only
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300   2) /*
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300   3)  * sysfs interface for HD-audio codec
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300   4)  *
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300   5)  * Copyright (c) 2014 Takashi Iwai <tiwai@suse.de>
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300   6)  *
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300   7)  * split from hda_hwdep.c
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300   8)  */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300   9) 
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  10) #include <linux/init.h>
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  11) #include <linux/slab.h>
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  12) #include <linux/compat.h>
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  13) #include <linux/mutex.h>
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  14) #include <linux/ctype.h>
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  15) #include <linux/string.h>
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  16) #include <linux/export.h>
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  17) #include <sound/core.h>
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  18) #include <sound/hda_codec.h>
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  19) #include "hda_local.h"
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  20) #include <sound/hda_hwdep.h>
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  21) #include <sound/minors.h>
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  22) 
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  23) /* hint string pair */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  24) struct hda_hint {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  25) 	const char *key;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  26) 	const char *val;	/* contained in the same alloc as key */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  27) };
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  28) 
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  29) #ifdef CONFIG_PM
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  30) static ssize_t power_on_acct_show(struct device *dev,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  31) 				  struct device_attribute *attr,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  32) 				  char *buf)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  33) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  34) 	struct hda_codec *codec = dev_get_drvdata(dev);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  35) 	snd_hda_update_power_acct(codec);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  36) 	return sprintf(buf, "%u\n", jiffies_to_msecs(codec->power_on_acct));
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  37) }
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  38) 
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  39) static ssize_t power_off_acct_show(struct device *dev,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  40) 				   struct device_attribute *attr,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  41) 				   char *buf)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  42) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  43) 	struct hda_codec *codec = dev_get_drvdata(dev);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  44) 	snd_hda_update_power_acct(codec);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  45) 	return sprintf(buf, "%u\n", jiffies_to_msecs(codec->power_off_acct));
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  46) }
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  47) 
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  48) static DEVICE_ATTR_RO(power_on_acct);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  49) static DEVICE_ATTR_RO(power_off_acct);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  50) #endif /* CONFIG_PM */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  51) 
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  52) #define CODEC_INFO_SHOW(type, field)				\
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  53) static ssize_t type##_show(struct device *dev,			\
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  54) 			   struct device_attribute *attr,	\
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  55) 			   char *buf)				\
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  56) {								\
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  57) 	struct hda_codec *codec = dev_get_drvdata(dev);		\
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  58) 	return sprintf(buf, "0x%x\n", codec->field);		\
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  59) }
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  60) 
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  61) #define CODEC_INFO_STR_SHOW(type, field)			\
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  62) static ssize_t type##_show(struct device *dev,			\
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  63) 			     struct device_attribute *attr,	\
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  64) 					char *buf)		\
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  65) {								\
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  66) 	struct hda_codec *codec = dev_get_drvdata(dev);		\
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  67) 	return sprintf(buf, "%s\n",				\
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  68) 		       codec->field ? codec->field : "");	\
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  69) }
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  70) 
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  71) CODEC_INFO_SHOW(vendor_id, core.vendor_id);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  72) CODEC_INFO_SHOW(subsystem_id, core.subsystem_id);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  73) CODEC_INFO_SHOW(revision_id, core.revision_id);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  74) CODEC_INFO_SHOW(afg, core.afg);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  75) CODEC_INFO_SHOW(mfg, core.mfg);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  76) CODEC_INFO_STR_SHOW(vendor_name, core.vendor_name);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  77) CODEC_INFO_STR_SHOW(chip_name, core.chip_name);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  78) CODEC_INFO_STR_SHOW(modelname, modelname);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  79) 
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  80) static ssize_t pin_configs_show(struct hda_codec *codec,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  81) 				struct snd_array *list,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  82) 				char *buf)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  83) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  84) 	const struct hda_pincfg *pin;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  85) 	int i, len = 0;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  86) 	mutex_lock(&codec->user_mutex);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  87) 	snd_array_for_each(list, i, pin) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  88) 		len += sprintf(buf + len, "0x%02x 0x%08x\n",
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  89) 			       pin->nid, pin->cfg);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  90) 	}
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  91) 	mutex_unlock(&codec->user_mutex);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  92) 	return len;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  93) }
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  94) 
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  95) static ssize_t init_pin_configs_show(struct device *dev,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  96) 				     struct device_attribute *attr,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  97) 				     char *buf)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  98) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  99) 	struct hda_codec *codec = dev_get_drvdata(dev);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 100) 	return pin_configs_show(codec, &codec->init_pins, buf);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 101) }
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 102) 
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 103) static ssize_t driver_pin_configs_show(struct device *dev,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 104) 				       struct device_attribute *attr,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 105) 				       char *buf)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 106) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 107) 	struct hda_codec *codec = dev_get_drvdata(dev);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 108) 	return pin_configs_show(codec, &codec->driver_pins, buf);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 109) }
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 110) 
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 111) #ifdef CONFIG_SND_HDA_RECONFIG
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 112) 
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 113) /*
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 114)  * sysfs interface
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 115)  */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 116) 
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 117) static int clear_codec(struct hda_codec *codec)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 118) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 119) 	int err;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 120) 
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 121) 	err = snd_hda_codec_reset(codec);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 122) 	if (err < 0) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 123) 		codec_err(codec, "The codec is being used, can't free.\n");
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 124) 		return err;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 125) 	}
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 126) 	snd_hda_sysfs_clear(codec);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 127) 	return 0;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 128) }
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 129) 
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 130) static int reconfig_codec(struct hda_codec *codec)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 131) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 132) 	int err;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 133) 
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 134) 	snd_hda_power_up(codec);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 135) 	codec_info(codec, "hda-codec: reconfiguring\n");
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 136) 	err = snd_hda_codec_reset(codec);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 137) 	if (err < 0) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 138) 		codec_err(codec,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 139) 			   "The codec is being used, can't reconfigure.\n");
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 140) 		goto error;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 141) 	}
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 142) 	err = device_reprobe(hda_codec_dev(codec));
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 143) 	if (err < 0)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 144) 		goto error;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 145) 	err = snd_card_register(codec->card);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 146)  error:
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 147) 	snd_hda_power_down(codec);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 148) 	return err;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 149) }
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 150) 
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 151) /*
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 152)  * allocate a string at most len chars, and remove the trailing EOL
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 153)  */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 154) static char *kstrndup_noeol(const char *src, size_t len)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 155) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 156) 	char *s = kstrndup(src, len, GFP_KERNEL);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 157) 	char *p;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 158) 	if (!s)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 159) 		return NULL;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 160) 	p = strchr(s, '\n');
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 161) 	if (p)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 162) 		*p = 0;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 163) 	return s;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 164) }
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 165) 
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 166) #define CODEC_INFO_STORE(type, field)				\
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 167) static ssize_t type##_store(struct device *dev,			\
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 168) 			    struct device_attribute *attr,	\
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 169) 			    const char *buf, size_t count)	\
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 170) {								\
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 171) 	struct hda_codec *codec = dev_get_drvdata(dev);		\
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 172) 	unsigned long val;					\
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 173) 	int err = kstrtoul(buf, 0, &val);			\
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 174) 	if (err < 0)						\
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 175) 		return err;					\
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 176) 	codec->field = val;					\
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 177) 	return count;						\
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 178) }
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 179) 
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 180) #define CODEC_INFO_STR_STORE(type, field)			\
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 181) static ssize_t type##_store(struct device *dev,			\
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 182) 			    struct device_attribute *attr,	\
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 183) 			    const char *buf, size_t count)	\
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 184) {								\
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 185) 	struct hda_codec *codec = dev_get_drvdata(dev);		\
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 186) 	char *s = kstrndup_noeol(buf, 64);			\
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 187) 	if (!s)							\
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 188) 		return -ENOMEM;					\
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 189) 	kfree(codec->field);					\
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 190) 	codec->field = s;					\
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 191) 	return count;						\
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 192) }
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 193) 
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 194) CODEC_INFO_STORE(vendor_id, core.vendor_id);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 195) CODEC_INFO_STORE(subsystem_id, core.subsystem_id);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 196) CODEC_INFO_STORE(revision_id, core.revision_id);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 197) CODEC_INFO_STR_STORE(vendor_name, core.vendor_name);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 198) CODEC_INFO_STR_STORE(chip_name, core.chip_name);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 199) CODEC_INFO_STR_STORE(modelname, modelname);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 200) 
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 201) #define CODEC_ACTION_STORE(type)				\
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 202) static ssize_t type##_store(struct device *dev,			\
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 203) 			    struct device_attribute *attr,	\
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 204) 			    const char *buf, size_t count)	\
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 205) {								\
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 206) 	struct hda_codec *codec = dev_get_drvdata(dev);		\
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 207) 	int err = 0;						\
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 208) 	if (*buf)						\
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 209) 		err = type##_codec(codec);			\
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 210) 	return err < 0 ? err : count;				\
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 211) }
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 212) 
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 213) CODEC_ACTION_STORE(reconfig);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 214) CODEC_ACTION_STORE(clear);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 215) 
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 216) static ssize_t init_verbs_show(struct device *dev,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 217) 			       struct device_attribute *attr,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 218) 			       char *buf)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 219) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 220) 	struct hda_codec *codec = dev_get_drvdata(dev);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 221) 	const struct hda_verb *v;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 222) 	int i, len = 0;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 223) 	mutex_lock(&codec->user_mutex);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 224) 	snd_array_for_each(&codec->init_verbs, i, v) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 225) 		len += scnprintf(buf + len, PAGE_SIZE - len,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 226) 				"0x%02x 0x%03x 0x%04x\n",
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 227) 				v->nid, v->verb, v->param);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 228) 	}
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 229) 	mutex_unlock(&codec->user_mutex);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 230) 	return len;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 231) }
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 232) 
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 233) static int parse_init_verbs(struct hda_codec *codec, const char *buf)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 234) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 235) 	struct hda_verb *v;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 236) 	int nid, verb, param;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 237) 
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 238) 	if (sscanf(buf, "%i %i %i", &nid, &verb, &param) != 3)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 239) 		return -EINVAL;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 240) 	if (!nid || !verb)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 241) 		return -EINVAL;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 242) 	mutex_lock(&codec->user_mutex);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 243) 	v = snd_array_new(&codec->init_verbs);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 244) 	if (!v) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 245) 		mutex_unlock(&codec->user_mutex);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 246) 		return -ENOMEM;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 247) 	}
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 248) 	v->nid = nid;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 249) 	v->verb = verb;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 250) 	v->param = param;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 251) 	mutex_unlock(&codec->user_mutex);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 252) 	return 0;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 253) }
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 254) 
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 255) static ssize_t init_verbs_store(struct device *dev,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 256) 				struct device_attribute *attr,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 257) 				const char *buf, size_t count)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 258) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 259) 	struct hda_codec *codec = dev_get_drvdata(dev);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 260) 	int err = parse_init_verbs(codec, buf);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 261) 	if (err < 0)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 262) 		return err;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 263) 	return count;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 264) }
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 265) 
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 266) static ssize_t hints_show(struct device *dev,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 267) 			  struct device_attribute *attr,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 268) 			  char *buf)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 269) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 270) 	struct hda_codec *codec = dev_get_drvdata(dev);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 271) 	const struct hda_hint *hint;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 272) 	int i, len = 0;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 273) 	mutex_lock(&codec->user_mutex);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 274) 	snd_array_for_each(&codec->hints, i, hint) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 275) 		len += scnprintf(buf + len, PAGE_SIZE - len,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 276) 				"%s = %s\n", hint->key, hint->val);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 277) 	}
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 278) 	mutex_unlock(&codec->user_mutex);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 279) 	return len;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 280) }
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 281) 
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 282) static struct hda_hint *get_hint(struct hda_codec *codec, const char *key)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 283) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 284) 	struct hda_hint *hint;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 285) 	int i;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 286) 
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 287) 	snd_array_for_each(&codec->hints, i, hint) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 288) 		if (!strcmp(hint->key, key))
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 289) 			return hint;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 290) 	}
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 291) 	return NULL;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 292) }
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 293) 
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 294) static void remove_trail_spaces(char *str)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 295) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 296) 	char *p;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 297) 	if (!*str)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 298) 		return;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 299) 	p = str + strlen(str) - 1;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 300) 	for (; isspace(*p); p--) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 301) 		*p = 0;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 302) 		if (p == str)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 303) 			return;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 304) 	}
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 305) }
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 306) 
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 307) #define MAX_HINTS	1024
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 308) 
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 309) static int parse_hints(struct hda_codec *codec, const char *buf)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 310) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 311) 	char *key, *val;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 312) 	struct hda_hint *hint;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 313) 	int err = 0;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 314) 
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 315) 	buf = skip_spaces(buf);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 316) 	if (!*buf || *buf == '#' || *buf == '\n')
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 317) 		return 0;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 318) 	if (*buf == '=')
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 319) 		return -EINVAL;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 320) 	key = kstrndup_noeol(buf, 1024);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 321) 	if (!key)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 322) 		return -ENOMEM;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 323) 	/* extract key and val */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 324) 	val = strchr(key, '=');
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 325) 	if (!val) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 326) 		kfree(key);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 327) 		return -EINVAL;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 328) 	}
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 329) 	*val++ = 0;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 330) 	val = skip_spaces(val);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 331) 	remove_trail_spaces(key);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 332) 	remove_trail_spaces(val);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 333) 	mutex_lock(&codec->user_mutex);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 334) 	hint = get_hint(codec, key);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 335) 	if (hint) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 336) 		/* replace */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 337) 		kfree(hint->key);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 338) 		hint->key = key;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 339) 		hint->val = val;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 340) 		goto unlock;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 341) 	}
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 342) 	/* allocate a new hint entry */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 343) 	if (codec->hints.used >= MAX_HINTS)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 344) 		hint = NULL;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 345) 	else
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 346) 		hint = snd_array_new(&codec->hints);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 347) 	if (hint) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 348) 		hint->key = key;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 349) 		hint->val = val;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 350) 	} else {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 351) 		err = -ENOMEM;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 352) 	}
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 353)  unlock:
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 354) 	mutex_unlock(&codec->user_mutex);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 355) 	if (err)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 356) 		kfree(key);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 357) 	return err;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 358) }
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 359) 
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 360) static ssize_t hints_store(struct device *dev,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 361) 			   struct device_attribute *attr,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 362) 			   const char *buf, size_t count)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 363) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 364) 	struct hda_codec *codec = dev_get_drvdata(dev);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 365) 	int err = parse_hints(codec, buf);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 366) 	if (err < 0)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 367) 		return err;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 368) 	return count;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 369) }
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 370) 
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 371) static ssize_t user_pin_configs_show(struct device *dev,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 372) 				     struct device_attribute *attr,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 373) 				     char *buf)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 374) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 375) 	struct hda_codec *codec = dev_get_drvdata(dev);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 376) 	return pin_configs_show(codec, &codec->user_pins, buf);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 377) }
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 378) 
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 379) #define MAX_PIN_CONFIGS		32
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 380) 
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 381) static int parse_user_pin_configs(struct hda_codec *codec, const char *buf)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 382) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 383) 	int nid, cfg, err;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 384) 
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 385) 	if (sscanf(buf, "%i %i", &nid, &cfg) != 2)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 386) 		return -EINVAL;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 387) 	if (!nid)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 388) 		return -EINVAL;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 389) 	mutex_lock(&codec->user_mutex);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 390) 	err = snd_hda_add_pincfg(codec, &codec->user_pins, nid, cfg);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 391) 	mutex_unlock(&codec->user_mutex);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 392) 	return err;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 393) }
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 394) 
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 395) static ssize_t user_pin_configs_store(struct device *dev,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 396) 				      struct device_attribute *attr,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 397) 				      const char *buf, size_t count)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 398) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 399) 	struct hda_codec *codec = dev_get_drvdata(dev);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 400) 	int err = parse_user_pin_configs(codec, buf);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 401) 	if (err < 0)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 402) 		return err;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 403) 	return count;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 404) }
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 405) 
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 406) /* sysfs attributes exposed only when CONFIG_SND_HDA_RECONFIG=y */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 407) static DEVICE_ATTR_RW(init_verbs);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 408) static DEVICE_ATTR_RW(hints);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 409) static DEVICE_ATTR_RW(user_pin_configs);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 410) static DEVICE_ATTR_WO(reconfig);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 411) static DEVICE_ATTR_WO(clear);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 412) 
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 413) /**
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 414)  * snd_hda_get_hint - Look for hint string
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 415)  * @codec: the HDA codec
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 416)  * @key: the hint key string
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 417)  *
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 418)  * Look for a hint key/value pair matching with the given key string
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 419)  * and returns the value string.  If nothing found, returns NULL.
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 420)  */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 421) const char *snd_hda_get_hint(struct hda_codec *codec, const char *key)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 422) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 423) 	struct hda_hint *hint = get_hint(codec, key);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 424) 	return hint ? hint->val : NULL;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 425) }
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 426) EXPORT_SYMBOL_GPL(snd_hda_get_hint);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 427) 
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 428) /**
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 429)  * snd_hda_get_bool_hint - Get a boolean hint value
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 430)  * @codec: the HDA codec
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 431)  * @key: the hint key string
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 432)  *
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 433)  * Look for a hint key/value pair matching with the given key string
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 434)  * and returns a boolean value parsed from the value.  If no matching
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 435)  * key is found, return a negative value.
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 436)  */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 437) int snd_hda_get_bool_hint(struct hda_codec *codec, const char *key)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 438) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 439) 	const char *p;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 440) 	int ret;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 441) 
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 442) 	mutex_lock(&codec->user_mutex);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 443) 	p = snd_hda_get_hint(codec, key);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 444) 	if (!p || !*p)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 445) 		ret = -ENOENT;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 446) 	else {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 447) 		switch (toupper(*p)) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 448) 		case 'T': /* true */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 449) 		case 'Y': /* yes */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 450) 		case '1':
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 451) 			ret = 1;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 452) 			break;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 453) 		default:
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 454) 			ret = 0;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 455) 			break;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 456) 		}
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 457) 	}
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 458) 	mutex_unlock(&codec->user_mutex);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 459) 	return ret;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 460) }
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 461) EXPORT_SYMBOL_GPL(snd_hda_get_bool_hint);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 462) 
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 463) /**
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 464)  * snd_hda_get_int_hint - Get an integer hint value
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 465)  * @codec: the HDA codec
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 466)  * @key: the hint key string
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 467)  * @valp: pointer to store a value
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 468)  *
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 469)  * Look for a hint key/value pair matching with the given key string
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 470)  * and stores the integer value to @valp.  If no matching key is found,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 471)  * return a negative error code.  Otherwise it returns zero.
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 472)  */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 473) int snd_hda_get_int_hint(struct hda_codec *codec, const char *key, int *valp)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 474) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 475) 	const char *p;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 476) 	unsigned long val;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 477) 	int ret;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 478) 
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 479) 	mutex_lock(&codec->user_mutex);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 480) 	p = snd_hda_get_hint(codec, key);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 481) 	if (!p)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 482) 		ret = -ENOENT;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 483) 	else if (kstrtoul(p, 0, &val))
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 484) 		ret = -EINVAL;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 485) 	else {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 486) 		*valp = val;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 487) 		ret = 0;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 488) 	}
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 489) 	mutex_unlock(&codec->user_mutex);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 490) 	return ret;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 491) }
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 492) EXPORT_SYMBOL_GPL(snd_hda_get_int_hint);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 493) #endif /* CONFIG_SND_HDA_RECONFIG */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 494) 
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 495) /*
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 496)  * common sysfs attributes
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 497)  */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 498) #ifdef CONFIG_SND_HDA_RECONFIG
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 499) #define RECONFIG_DEVICE_ATTR(name)	DEVICE_ATTR_RW(name)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 500) #else
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 501) #define RECONFIG_DEVICE_ATTR(name)	DEVICE_ATTR_RO(name)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 502) #endif
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 503) static RECONFIG_DEVICE_ATTR(vendor_id);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 504) static RECONFIG_DEVICE_ATTR(subsystem_id);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 505) static RECONFIG_DEVICE_ATTR(revision_id);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 506) static DEVICE_ATTR_RO(afg);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 507) static DEVICE_ATTR_RO(mfg);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 508) static RECONFIG_DEVICE_ATTR(vendor_name);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 509) static RECONFIG_DEVICE_ATTR(chip_name);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 510) static RECONFIG_DEVICE_ATTR(modelname);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 511) static DEVICE_ATTR_RO(init_pin_configs);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 512) static DEVICE_ATTR_RO(driver_pin_configs);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 513) 
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 514) 
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 515) #ifdef CONFIG_SND_HDA_PATCH_LOADER
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 516) 
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 517) /* parser mode */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 518) enum {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 519) 	LINE_MODE_NONE,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 520) 	LINE_MODE_CODEC,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 521) 	LINE_MODE_MODEL,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 522) 	LINE_MODE_PINCFG,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 523) 	LINE_MODE_VERB,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 524) 	LINE_MODE_HINT,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 525) 	LINE_MODE_VENDOR_ID,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 526) 	LINE_MODE_SUBSYSTEM_ID,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 527) 	LINE_MODE_REVISION_ID,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 528) 	LINE_MODE_CHIP_NAME,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 529) 	NUM_LINE_MODES,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 530) };
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 531) 
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 532) static inline int strmatch(const char *a, const char *b)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 533) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 534) 	return strncasecmp(a, b, strlen(b)) == 0;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 535) }
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 536) 
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 537) /* parse the contents after the line "[codec]"
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 538)  * accept only the line with three numbers, and assign the current codec
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 539)  */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 540) static void parse_codec_mode(char *buf, struct hda_bus *bus,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 541) 			     struct hda_codec **codecp)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 542) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 543) 	int vendorid, subid, caddr;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 544) 	struct hda_codec *codec;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 545) 
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 546) 	*codecp = NULL;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 547) 	if (sscanf(buf, "%i %i %i", &vendorid, &subid, &caddr) == 3) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 548) 		list_for_each_codec(codec, bus) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 549) 			if ((vendorid <= 0 || codec->core.vendor_id == vendorid) &&
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 550) 			    (subid <= 0 || codec->core.subsystem_id == subid) &&
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 551) 			    codec->core.addr == caddr) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 552) 				*codecp = codec;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 553) 				break;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 554) 			}
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 555) 		}
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 556) 	}
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 557) }
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 558) 
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 559) /* parse the contents after the other command tags, [pincfg], [verb],
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 560)  * [vendor_id], [subsystem_id], [revision_id], [chip_name], [hint] and [model]
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 561)  * just pass to the sysfs helper (only when any codec was specified)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 562)  */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 563) static void parse_pincfg_mode(char *buf, struct hda_bus *bus,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 564) 			      struct hda_codec **codecp)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 565) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 566) 	parse_user_pin_configs(*codecp, buf);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 567) }
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 568) 
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 569) static void parse_verb_mode(char *buf, struct hda_bus *bus,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 570) 			    struct hda_codec **codecp)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 571) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 572) 	parse_init_verbs(*codecp, buf);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 573) }
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 574) 
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 575) static void parse_hint_mode(char *buf, struct hda_bus *bus,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 576) 			    struct hda_codec **codecp)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 577) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 578) 	parse_hints(*codecp, buf);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 579) }
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 580) 
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 581) static void parse_model_mode(char *buf, struct hda_bus *bus,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 582) 			     struct hda_codec **codecp)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 583) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 584) 	kfree((*codecp)->modelname);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 585) 	(*codecp)->modelname = kstrdup(buf, GFP_KERNEL);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 586) }
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 587) 
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 588) static void parse_chip_name_mode(char *buf, struct hda_bus *bus,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 589) 				 struct hda_codec **codecp)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 590) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 591) 	snd_hda_codec_set_name(*codecp, buf);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 592) }
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 593) 
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 594) #define DEFINE_PARSE_ID_MODE(name) \
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 595) static void parse_##name##_mode(char *buf, struct hda_bus *bus, \
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 596) 				 struct hda_codec **codecp) \
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 597) { \
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 598) 	unsigned long val; \
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 599) 	if (!kstrtoul(buf, 0, &val)) \
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 600) 		(*codecp)->core.name = val; \
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 601) }
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 602) 
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 603) DEFINE_PARSE_ID_MODE(vendor_id);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 604) DEFINE_PARSE_ID_MODE(subsystem_id);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 605) DEFINE_PARSE_ID_MODE(revision_id);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 606) 
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 607) 
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 608) struct hda_patch_item {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 609) 	const char *tag;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 610) 	const char *alias;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 611) 	void (*parser)(char *buf, struct hda_bus *bus, struct hda_codec **retc);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 612) };
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 613) 
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 614) static const struct hda_patch_item patch_items[NUM_LINE_MODES] = {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 615) 	[LINE_MODE_CODEC] = {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 616) 		.tag = "[codec]",
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 617) 		.parser = parse_codec_mode,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 618) 	},
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 619) 	[LINE_MODE_MODEL] = {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 620) 		.tag = "[model]",
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 621) 		.parser = parse_model_mode,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 622) 	},
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 623) 	[LINE_MODE_VERB] = {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 624) 		.tag = "[verb]",
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 625) 		.alias = "[init_verbs]",
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 626) 		.parser = parse_verb_mode,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 627) 	},
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 628) 	[LINE_MODE_PINCFG] = {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 629) 		.tag = "[pincfg]",
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 630) 		.alias = "[user_pin_configs]",
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 631) 		.parser = parse_pincfg_mode,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 632) 	},
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 633) 	[LINE_MODE_HINT] = {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 634) 		.tag = "[hint]",
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 635) 		.alias = "[hints]",
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 636) 		.parser = parse_hint_mode
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 637) 	},
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 638) 	[LINE_MODE_VENDOR_ID] = {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 639) 		.tag = "[vendor_id]",
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 640) 		.parser = parse_vendor_id_mode,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 641) 	},
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 642) 	[LINE_MODE_SUBSYSTEM_ID] = {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 643) 		.tag = "[subsystem_id]",
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 644) 		.parser = parse_subsystem_id_mode,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 645) 	},
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 646) 	[LINE_MODE_REVISION_ID] = {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 647) 		.tag = "[revision_id]",
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 648) 		.parser = parse_revision_id_mode,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 649) 	},
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 650) 	[LINE_MODE_CHIP_NAME] = {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 651) 		.tag = "[chip_name]",
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 652) 		.parser = parse_chip_name_mode,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 653) 	},
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 654) };
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 655) 
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 656) /* check the line starting with '[' -- change the parser mode accodingly */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 657) static int parse_line_mode(char *buf, struct hda_bus *bus)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 658) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 659) 	int i;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 660) 	for (i = 0; i < ARRAY_SIZE(patch_items); i++) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 661) 		if (!patch_items[i].tag)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 662) 			continue;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 663) 		if (strmatch(buf, patch_items[i].tag))
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 664) 			return i;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 665) 		if (patch_items[i].alias && strmatch(buf, patch_items[i].alias))
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 666) 			return i;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 667) 	}
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 668) 	return LINE_MODE_NONE;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 669) }
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 670) 
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 671) /* copy one line from the buffer in fw, and update the fields in fw
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 672)  * return zero if it reaches to the end of the buffer, or non-zero
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 673)  * if successfully copied a line
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 674)  *
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 675)  * the spaces at the beginning and the end of the line are stripped
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 676)  */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 677) static int get_line_from_fw(char *buf, int size, size_t *fw_size_p,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 678) 			    const void **fw_data_p)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 679) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 680) 	int len;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 681) 	size_t fw_size = *fw_size_p;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 682) 	const char *p = *fw_data_p;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 683) 
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 684) 	while (isspace(*p) && fw_size) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 685) 		p++;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 686) 		fw_size--;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 687) 	}
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 688) 	if (!fw_size)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 689) 		return 0;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 690) 
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 691) 	for (len = 0; len < fw_size; len++) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 692) 		if (!*p)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 693) 			break;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 694) 		if (*p == '\n') {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 695) 			p++;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 696) 			len++;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 697) 			break;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 698) 		}
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 699) 		if (len < size)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 700) 			*buf++ = *p++;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 701) 	}
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 702) 	*buf = 0;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 703) 	*fw_size_p = fw_size - len;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 704) 	*fw_data_p = p;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 705) 	remove_trail_spaces(buf);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 706) 	return 1;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 707) }
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 708) 
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 709) /**
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 710)  * snd_hda_load_patch - load a "patch" firmware file and parse it
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 711)  * @bus: HD-audio bus
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 712)  * @fw_size: the firmware byte size
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 713)  * @fw_buf: the firmware data
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 714)  */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 715) int snd_hda_load_patch(struct hda_bus *bus, size_t fw_size, const void *fw_buf)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 716) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 717) 	char buf[128];
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 718) 	struct hda_codec *codec;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 719) 	int line_mode;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 720) 
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 721) 	line_mode = LINE_MODE_NONE;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 722) 	codec = NULL;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 723) 	while (get_line_from_fw(buf, sizeof(buf) - 1, &fw_size, &fw_buf)) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 724) 		if (!*buf || *buf == '#' || *buf == '\n')
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 725) 			continue;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 726) 		if (*buf == '[')
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 727) 			line_mode = parse_line_mode(buf, bus);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 728) 		else if (patch_items[line_mode].parser &&
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 729) 			 (codec || line_mode <= LINE_MODE_CODEC))
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 730) 			patch_items[line_mode].parser(buf, bus, &codec);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 731) 	}
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 732) 	return 0;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 733) }
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 734) EXPORT_SYMBOL_GPL(snd_hda_load_patch);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 735) #endif /* CONFIG_SND_HDA_PATCH_LOADER */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 736) 
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 737) /*
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 738)  * sysfs entries
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 739)  */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 740) static struct attribute *hda_dev_attrs[] = {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 741) 	&dev_attr_vendor_id.attr,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 742) 	&dev_attr_subsystem_id.attr,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 743) 	&dev_attr_revision_id.attr,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 744) 	&dev_attr_afg.attr,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 745) 	&dev_attr_mfg.attr,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 746) 	&dev_attr_vendor_name.attr,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 747) 	&dev_attr_chip_name.attr,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 748) 	&dev_attr_modelname.attr,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 749) 	&dev_attr_init_pin_configs.attr,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 750) 	&dev_attr_driver_pin_configs.attr,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 751) #ifdef CONFIG_PM
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 752) 	&dev_attr_power_on_acct.attr,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 753) 	&dev_attr_power_off_acct.attr,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 754) #endif
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 755) #ifdef CONFIG_SND_HDA_RECONFIG
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 756) 	&dev_attr_init_verbs.attr,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 757) 	&dev_attr_hints.attr,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 758) 	&dev_attr_user_pin_configs.attr,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 759) 	&dev_attr_reconfig.attr,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 760) 	&dev_attr_clear.attr,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 761) #endif
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 762) 	NULL
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 763) };
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 764) 
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 765) static const struct attribute_group hda_dev_attr_group = {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 766) 	.attrs	= hda_dev_attrs,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 767) };
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 768) 
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 769) const struct attribute_group *snd_hda_dev_attr_groups[] = {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 770) 	&hda_dev_attr_group,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 771) 	NULL
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 772) };
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 773) 
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 774) void snd_hda_sysfs_init(struct hda_codec *codec)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 775) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 776) 	mutex_init(&codec->user_mutex);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 777) #ifdef CONFIG_SND_HDA_RECONFIG
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 778) 	snd_array_init(&codec->init_verbs, sizeof(struct hda_verb), 32);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 779) 	snd_array_init(&codec->hints, sizeof(struct hda_hint), 32);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 780) 	snd_array_init(&codec->user_pins, sizeof(struct hda_pincfg), 16);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 781) #endif
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 782) }
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 783) 
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 784) void snd_hda_sysfs_clear(struct hda_codec *codec)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 785) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 786) #ifdef CONFIG_SND_HDA_RECONFIG
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 787) 	struct hda_hint *hint;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 788) 	int i;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 789) 
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 790) 	/* clear init verbs */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 791) 	snd_array_free(&codec->init_verbs);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 792) 	/* clear hints */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 793) 	snd_array_for_each(&codec->hints, i, hint) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 794) 		kfree(hint->key); /* we don't need to free hint->val */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 795) 	}
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 796) 	snd_array_free(&codec->hints);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 797) 	snd_array_free(&codec->user_pins);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 798) #endif
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 799) }