Add: compatible to linux-4.18 or higher

Makefile

@@ -1,3 +1,17 @@
+#
+# Peter Yang <turmary@126.com>
+# Copyright (c) 2019 Seeed Studio
+#
+# MIT License
+#
+
+uname_r=$(shell uname -r)
+
+# If KERNELRELEASE is defined, we've been invoked from the
+# kernel build system and can use its language
+ifneq ($(KERNELRELEASE),)
+# $(warning KERNELVERSION=$(KERNELVERSION))
+
 snd-soc-wm8960-objs := wm8960.o
 snd-soc-ac108-objs := ac108.o ac101.o
 snd-soc-seeed-voicecard-objs := seeed-voicecard.o
@@ -14,14 +28,25 @@ endif
 endif
 
 
+
+else
+
+DEST := /lib/modules/$(uname_r)/kernel
+
 all:
-	make -C /lib/modules/$(shell uname -r)/build M=$(PWD) modules
+	make -C /lib/modules/$(uname_r)/build M=$(PWD) modules
 
 clean:
-	make -C /lib/modules/$(shell uname -r)/build M=$(PWD) clean
+	make -C /lib/modules/$(uname_r)/build M=$(PWD) clean
 
 install:
-	sudo cp snd-soc-ac108.ko /lib/modules/$(shell uname -r)/kernel/sound/soc/codecs/
+	sudo cp snd-soc-ac108.ko ${DEST}/sound/soc/codecs/
-	sudo cp snd-soc-wm8960.ko /lib/modules/$(shell uname -r)/kernel/sound/soc/codecs/
+	sudo cp snd-soc-wm8960.ko ${DEST}/sound/soc/codecs/
-	sudo cp snd-soc-seeed-voicecard.ko /lib/modules/$(shell uname -r)/kernel/sound/soc/bcm/
+	sudo cp snd-soc-seeed-voicecard.ko ${DEST}/sound/soc/bcm/
 	sudo depmod -a
+
+
+.PHONY: all clean install
+
+endif
+

ac101.c

@@ -363,7 +363,7 @@ static irqreturn_t audio_hmic_irq(int irq, void *para)
 
 static int ac101_switch_probe(struct ac10x_priv *ac10x) {
 	struct i2c_client *i2c = ac10x->i2c101;
-	int ret;
+	long ret;
 
 	ac10x->gpiod_irq = devm_gpiod_get_optional(&i2c->dev, "switch-irq", GPIOD_IN);
 	if (IS_ERR(ac10x->gpiod_irq)) {
@@ -376,7 +376,7 @@ static int ac101_switch_probe(struct ac10x_priv *ac10x) {
 
 	ac10x->irq = gpiod_to_irq(ac10x->gpiod_irq);
 	if (IS_ERR_VALUE(ac10x->irq)) {
-		pr_info("[ac101] map gpio to irq failed, errno = %d\n", ac10x->irq);
+		pr_info("[ac101] map gpio to irq failed, errno = %ld\n", ac10x->irq);
 		ac10x->irq = 0;
 		goto _err_irq;
 	}
@@ -384,7 +384,7 @@ static int ac101_switch_probe(struct ac10x_priv *ac10x) {
 	/* request irq, set irq type to falling edge trigger */
 	ret = devm_request_irq(ac10x->codec->dev, ac10x->irq, audio_hmic_irq, IRQF_TRIGGER_FALLING, "SWTICH_EINT", ac10x);
 	if (IS_ERR_VALUE(ret)) {
-		pr_info("[ac101] request virq %d failed, errno = %d\n", ac10x->irq, ret);
+		pr_info("[ac101] request virq %ld failed, errno = %ld\n", ac10x->irq, ret);
 		goto _err_irq;
 	}
 

ac108.c

@@ -1271,6 +1271,12 @@ int ac108_codec_remove(struct snd_soc_codec *codec) {
 	}
 	return ac101_codec_remove(codec);
 }
+#if __NO_SND_SOC_CODEC_DRV
+void ac108_codec_remove_void(struct snd_soc_codec *codec) {
+	ac108_codec_remove(codec);
+}
+#define ac108_codec_remove ac108_codec_remove_void
+#endif
 
 int ac108_codec_suspend(struct snd_soc_codec *codec) {
 	struct ac10x_priv *ac10x = snd_soc_codec_get_drvdata(codec);

ac10x.h

@@ -40,6 +40,8 @@
 #endif
 
 
+#include "sound-compatible-4.18.h"
+
 #ifdef CONFIG_AC101_SWITCH_DETECT
 enum headphone_mode_u {
 	HEADPHONE_IDLE,
@@ -78,7 +80,7 @@ struct ac10x_priv {
 
 	#ifdef CONFIG_AC101_SWITCH_DETECT
 	struct gpio_desc* gpiod_irq;
-	int irq;
+	long irq;
 	volatile int irq_cntr;
 	volatile int pullout_cntr;
 	volatile int state;

install.sh

@@ -12,7 +12,7 @@ if [ "x${is_Raspberry}" != "xRaspberry" ] ; then
 fi
 
 ver="0.3"
-
+uname_r=$(uname -r)
 
 # we create a dir with this version to ensure that 'dkms remove' won't delete
 # the sources during kernel updates
@@ -35,7 +35,6 @@ fi
 # locate currently installed kernels (may be different to running kernel if
 # it's just been updated)
 kernels=$(ls /lib/modules | sed "s/^/-k /")
-uname_r=$(uname -r)
 
 function install_module {
   src=$1
@@ -67,7 +66,7 @@ cp seeed-8mic-voicecard.dtbo /boot/overlays
 
 #install alsa plugins
 # no need this plugin now
-# install -D ac108_plugin/libasound_module_pcm_ac108.so /usr/lib/arm-linux-gnueabihf/alsa-lib/libasound_module_pcm_ac108.so
+# install -D ac108_plugin/libasound_module_pcm_ac108.so /usr/lib/arm-linux-gnueabihf/alsa-lib/
 rm -f /usr/lib/arm-linux-gnueabihf/alsa-lib/libasound_module_pcm_ac108.so
 
 #set kernel moduels

sound-compatible-4.18.h

@@ -0,0 +1,35 @@
+/*
+ * (C) Copyright 2017-2018
+ * Seeed Technology Co., Ltd. <www.seeedstudio.com>
+ *
+ * PeterYang <linsheng.yang@seeed.cc>
+ */
+#ifndef __SOUND_COMPATIBLE_4_18_H__
+#define __SOUND_COMPATIBLE_4_18_H__
+
+#include <linux/version.h>
+
+#if LINUX_VERSION_CODE >= KERNEL_VERSION(4,18,0)
+#define __NO_SND_SOC_CODEC_DRV     1
+#else
+#define __NO_SND_SOC_CODEC_DRV     0
+#endif
+
+#if __NO_SND_SOC_CODEC_DRV
+#define codec                      component
+#define snd_soc_codec              snd_soc_component
+#define snd_soc_codec_driver       snd_soc_component_driver
+#define snd_soc_codec_get_drvdata  snd_soc_component_get_drvdata
+#define snd_soc_codec_get_dapm     snd_soc_component_get_dapm
+#define snd_soc_codec_get_bias_level snd_soc_component_get_bias_level
+#define snd_soc_kcontrol_codec     snd_soc_kcontrol_component
+#define snd_soc_read               snd_soc_component_read32
+#define snd_soc_register_codec     snd_soc_register_component
+#define snd_soc_unregister_codec   snd_soc_unregister_component
+#define snd_soc_update_bits        snd_soc_component_update_bits
+#define snd_soc_write              snd_soc_component_write
+#define snd_soc_add_codec_controls snd_soc_add_component_controls
+#endif
+
+#endif//__SOUND_COMPATIBLE_4_18_H__
+

wm8960.c

@@ -25,6 +25,7 @@
 #include <sound/initval.h>
 #include <sound/tlv.h>
 #include <sound/wm8960.h>
+#include "sound-compatible-4.18.h"
 
 #include "wm8960.h"
 
@@ -507,7 +508,11 @@ static int wm8960_add_widgets(struct snd_soc_codec *codec)
 	 * list each time to find the desired power state do so now
 	 * and save the result.
 	 */
+	#if __NO_SND_SOC_CODEC_DRV
+	list_for_each_entry(w, &codec->card->widgets, list) {
+	#else
 	list_for_each_entry(w, &codec->component.card->widgets, list) {
+	#endif
 		if (w->dapm != dapm)
 			continue;
 		if (strcmp(w->name, "LOUT1 PGA") == 0)
@@ -1275,7 +1280,13 @@ static int wm8960_probe(struct snd_soc_codec *codec)
 static const struct snd_soc_codec_driver soc_codec_dev_wm8960 = {
 	.probe =	wm8960_probe,
 	.set_bias_level = wm8960_set_bias_level,
-	.suspend_bias_off = true,
+	.suspend_bias_off	= true,
+	#if __NO_SND_SOC_CODEC_DRV
+	.idle_bias_on		= 1,
+	.use_pmdown_time	= 1,
+	.endianness		= 1,
+	.non_legacy_dai_naming	= 1,
+	#endif
 };
 
 static const struct regmap_config wm8960_regmap = {