diff options
Diffstat (limited to 'sound/soc/fsl/soc-of-simple.c')
| -rw-r--r-- | sound/soc/fsl/soc-of-simple.c | 172 |
1 files changed, 0 insertions, 172 deletions
diff --git a/sound/soc/fsl/soc-of-simple.c b/sound/soc/fsl/soc-of-simple.c deleted file mode 100644 index 3bc13fd..0000000 --- a/sound/soc/fsl/soc-of-simple.c +++ /dev/null @@ -1,172 +0,0 @@ -/* - * OF helpers for ALSA SoC Layer - * - * Copyright (C) 2008, Secret Lab Technologies Ltd. - */ - -#include <linux/module.h> -#include <linux/moduleparam.h> -#include <linux/init.h> -#include <linux/delay.h> -#include <linux/pm.h> -#include <linux/bitops.h> -#include <linux/platform_device.h> -#include <linux/of.h> -#include <linux/slab.h> -#include <sound/core.h> -#include <sound/pcm.h> -#include <sound/pcm_params.h> -#include <sound/soc.h> -#include <sound/soc-of-simple.h> -#include <sound/initval.h> - -MODULE_AUTHOR("Grant Likely <grant.likely@secretlab.ca>"); -MODULE_LICENSE("GPL"); -MODULE_DESCRIPTION("ALSA SoC OpenFirmware bindings"); - -static DEFINE_MUTEX(of_snd_soc_mutex); -static LIST_HEAD(of_snd_soc_device_list); -static int of_snd_soc_next_index; - -struct of_snd_soc_device { - int id; - struct list_head list; - struct snd_soc_device device; - struct snd_soc_card card; - struct snd_soc_dai_link dai_link; - struct platform_device *pdev; - struct device_node *platform_node; - struct device_node *codec_node; -}; - -static struct snd_soc_ops of_snd_soc_ops = { -}; - -static struct of_snd_soc_device * -of_snd_soc_get_device(struct device_node *codec_node) -{ - struct of_snd_soc_device *of_soc; - - list_for_each_entry(of_soc, &of_snd_soc_device_list, list) { - if (of_soc->codec_node == codec_node) - return of_soc; - } - - of_soc = kzalloc(sizeof(struct of_snd_soc_device), GFP_KERNEL); - if (!of_soc) - return NULL; - - /* Initialize the structure and add it to the global list */ - of_soc->codec_node = codec_node; - of_soc->id = of_snd_soc_next_index++; - of_soc->card.dai_link = &of_soc->dai_link; - of_soc->card.num_links = 1; - of_soc->device.card = &of_soc->card; - of_soc->dai_link.ops = &of_snd_soc_ops; - list_add(&of_soc->list, &of_snd_soc_device_list); - - return of_soc; -} - -static void of_snd_soc_register_device(struct of_snd_soc_device *of_soc) -{ - struct platform_device *pdev; - int rc; - - /* Only register the device if both the codec and platform have - * been registered */ - if ((!of_soc->device.codec_data) || (!of_soc->platform_node)) - return; - - pr_info("platform<-->codec match achieved; registering machine\n"); - - pdev = platform_device_alloc("soc-audio", of_soc->id); - if (!pdev) { - pr_err("of_soc: platform_device_alloc() failed\n"); - return; - } - - pdev->dev.platform_data = of_soc; - platform_set_drvdata(pdev, &of_soc->device); - of_soc->device.dev = &pdev->dev; - - /* The ASoC device is complete; register it */ - rc = platform_device_add(pdev); - if (rc) { - pr_err("of_soc: platform_device_add() failed\n"); - return; - } - -} - -int of_snd_soc_register_codec(struct snd_soc_codec_device *codec_dev, - void *codec_data, struct snd_soc_dai *dai, - struct device_node *node) -{ - struct of_snd_soc_device *of_soc; - int rc = 0; - - pr_info("registering ASoC codec driver: %s\n", node->full_name); - - mutex_lock(&of_snd_soc_mutex); - of_soc = of_snd_soc_get_device(node); - if (!of_soc) { - rc = -ENOMEM; - goto out; - } - - /* Store the codec data */ - of_soc->device.codec_data = codec_data; - of_soc->device.codec_dev = codec_dev; - of_soc->dai_link.name = (char *)node->name; - of_soc->dai_link.stream_name = (char *)node->name; - of_soc->dai_link.codec_dai = dai; - - /* Now try to register the SoC device */ - of_snd_soc_register_device(of_soc); - - out: - mutex_unlock(&of_snd_soc_mutex); - return rc; -} -EXPORT_SYMBOL_GPL(of_snd_soc_register_codec); - -int of_snd_soc_register_platform(struct snd_soc_platform *platform, - struct device_node *node, - struct snd_soc_dai *cpu_dai) -{ - struct of_snd_soc_device *of_soc; - struct device_node *codec_node; - const phandle *handle; - int len, rc = 0; - - pr_info("registering ASoC platform driver: %s\n", node->full_name); - - handle = of_get_property(node, "codec-handle", &len); - if (!handle || len < sizeof(handle)) - return -ENODEV; - codec_node = of_find_node_by_phandle(*handle); - if (!codec_node) - return -ENODEV; - pr_info("looking for codec: %s\n", codec_node->full_name); - - mutex_lock(&of_snd_soc_mutex); - of_soc = of_snd_soc_get_device(codec_node); - if (!of_soc) { - rc = -ENOMEM; - goto out; - } - - of_soc->platform_node = node; - of_soc->dai_link.cpu_dai = cpu_dai; - of_soc->card.platform = platform; - of_soc->card.name = of_soc->dai_link.cpu_dai->name; - - /* Now try to register the SoC device */ - of_snd_soc_register_device(of_soc); - - out: - mutex_unlock(&of_snd_soc_mutex); - return rc; -} -EXPORT_SYMBOL_GPL(of_snd_soc_register_platform); |
